summaryrefslogtreecommitdiffstats
path: root/tools/testing/selftests/net
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--tools/testing/selftests/net/.gitignore32
-rw-r--r--tools/testing/selftests/net/Makefile43
-rwxr-xr-xtools/testing/selftests/net/altnames.sh75
-rw-r--r--tools/testing/selftests/net/config36
-rwxr-xr-xtools/testing/selftests/net/devlink_port_split.py307
-rwxr-xr-xtools/testing/selftests/net/drop_monitor_tests.sh215
-rwxr-xr-xtools/testing/selftests/net/fcnal-test.sh4034
-rwxr-xr-xtools/testing/selftests/net/fib-onlink-tests.sh505
-rwxr-xr-xtools/testing/selftests/net/fib_nexthop_multiprefix.sh292
-rwxr-xr-xtools/testing/selftests/net/fib_nexthops.sh1696
-rwxr-xr-xtools/testing/selftests/net/fib_rule_tests.sh260
-rwxr-xr-xtools/testing/selftests/net/fib_tests.sh1841
-rw-r--r--tools/testing/selftests/net/fin_ack_lat.c151
-rwxr-xr-xtools/testing/selftests/net/fin_ack_lat.sh35
-rw-r--r--tools/testing/selftests/net/forwarding/.gitignore2
-rw-r--r--tools/testing/selftests/net/forwarding/Makefile77
-rw-r--r--tools/testing/selftests/net/forwarding/README58
-rwxr-xr-xtools/testing/selftests/net/forwarding/bridge_igmp.sh152
-rwxr-xr-xtools/testing/selftests/net/forwarding/bridge_port_isolation.sh151
-rwxr-xr-xtools/testing/selftests/net/forwarding/bridge_sticky_fdb.sh69
-rwxr-xr-xtools/testing/selftests/net/forwarding/bridge_vlan_aware.sh151
-rwxr-xr-xtools/testing/selftests/net/forwarding/bridge_vlan_unaware.sh104
-rw-r--r--tools/testing/selftests/net/forwarding/config14
-rw-r--r--tools/testing/selftests/net/forwarding/devlink_lib.sh557
-rwxr-xr-xtools/testing/selftests/net/forwarding/ethtool.sh301
-rwxr-xr-xtools/testing/selftests/net/forwarding/ethtool_extended_state.sh104
-rw-r--r--tools/testing/selftests/net/forwarding/ethtool_lib.sh86
-rw-r--r--tools/testing/selftests/net/forwarding/fib_offload_lib.sh873
-rw-r--r--tools/testing/selftests/net/forwarding/forwarding.config.sample45
-rwxr-xr-xtools/testing/selftests/net/forwarding/gre_inner_v4_multipath.sh305
-rwxr-xr-xtools/testing/selftests/net/forwarding/gre_inner_v6_multipath.sh306
-rwxr-xr-xtools/testing/selftests/net/forwarding/gre_multipath.sh257
-rwxr-xr-xtools/testing/selftests/net/forwarding/ip6_forward_instats_vrf.sh172
-rwxr-xr-xtools/testing/selftests/net/forwarding/ip6gre_inner_v4_multipath.sh304
-rwxr-xr-xtools/testing/selftests/net/forwarding/ip6gre_inner_v6_multipath.sh305
-rwxr-xr-xtools/testing/selftests/net/forwarding/ipip_flat_gre.sh63
-rwxr-xr-xtools/testing/selftests/net/forwarding/ipip_flat_gre_key.sh63
-rwxr-xr-xtools/testing/selftests/net/forwarding/ipip_flat_gre_keys.sh63
-rwxr-xr-xtools/testing/selftests/net/forwarding/ipip_hier_gre.sh63
-rwxr-xr-xtools/testing/selftests/net/forwarding/ipip_hier_gre_key.sh63
-rwxr-xr-xtools/testing/selftests/net/forwarding/ipip_hier_gre_keys.sh63
-rw-r--r--tools/testing/selftests/net/forwarding/ipip_lib.sh349
-rw-r--r--tools/testing/selftests/net/forwarding/lib.sh1300
-rwxr-xr-xtools/testing/selftests/net/forwarding/loopback.sh102
-rwxr-xr-xtools/testing/selftests/net/forwarding/mirror_gre.sh160
-rwxr-xr-xtools/testing/selftests/net/forwarding/mirror_gre_bound.sh226
-rwxr-xr-xtools/testing/selftests/net/forwarding/mirror_gre_bridge_1d.sh132
-rwxr-xr-xtools/testing/selftests/net/forwarding/mirror_gre_bridge_1d_vlan.sh132
-rwxr-xr-xtools/testing/selftests/net/forwarding/mirror_gre_bridge_1q.sh129
-rwxr-xr-xtools/testing/selftests/net/forwarding/mirror_gre_bridge_1q_lag.sh292
-rwxr-xr-xtools/testing/selftests/net/forwarding/mirror_gre_changes.sh273
-rwxr-xr-xtools/testing/selftests/net/forwarding/mirror_gre_flower.sh137
-rwxr-xr-xtools/testing/selftests/net/forwarding/mirror_gre_lag_lacp.sh285
-rw-r--r--tools/testing/selftests/net/forwarding/mirror_gre_lib.sh130
-rwxr-xr-xtools/testing/selftests/net/forwarding/mirror_gre_neigh.sh115
-rwxr-xr-xtools/testing/selftests/net/forwarding/mirror_gre_nh.sh131
-rw-r--r--tools/testing/selftests/net/forwarding/mirror_gre_topo_lib.sh94
-rwxr-xr-xtools/testing/selftests/net/forwarding/mirror_gre_vlan.sh92
-rwxr-xr-xtools/testing/selftests/net/forwarding/mirror_gre_vlan_bridge_1q.sh347
-rw-r--r--tools/testing/selftests/net/forwarding/mirror_lib.sh148
-rw-r--r--tools/testing/selftests/net/forwarding/mirror_topo_lib.sh101
-rwxr-xr-xtools/testing/selftests/net/forwarding/mirror_vlan.sh131
-rwxr-xr-xtools/testing/selftests/net/forwarding/pedit_dsfield.sh311
-rwxr-xr-xtools/testing/selftests/net/forwarding/pedit_l4port.sh200
-rwxr-xr-xtools/testing/selftests/net/forwarding/router.sh322
-rwxr-xr-xtools/testing/selftests/net/forwarding/router_bridge.sh113
-rwxr-xr-xtools/testing/selftests/net/forwarding/router_bridge_vlan.sh132
-rwxr-xr-xtools/testing/selftests/net/forwarding/router_broadcast.sh237
-rwxr-xr-xtools/testing/selftests/net/forwarding/router_mpath_nh.sh359
-rwxr-xr-xtools/testing/selftests/net/forwarding/router_multicast.sh416
-rwxr-xr-xtools/testing/selftests/net/forwarding/router_multipath.sh342
-rwxr-xr-xtools/testing/selftests/net/forwarding/router_vid_1.sh135
-rwxr-xr-xtools/testing/selftests/net/forwarding/sch_ets.sh47
-rw-r--r--tools/testing/selftests/net/forwarding/sch_ets_core.sh300
-rw-r--r--tools/testing/selftests/net/forwarding/sch_ets_tests.sh223
-rwxr-xr-xtools/testing/selftests/net/forwarding/sch_red.sh493
-rw-r--r--tools/testing/selftests/net/forwarding/sch_tbf_core.sh233
-rwxr-xr-xtools/testing/selftests/net/forwarding/sch_tbf_ets.sh6
-rw-r--r--tools/testing/selftests/net/forwarding/sch_tbf_etsprio.sh39
-rwxr-xr-xtools/testing/selftests/net/forwarding/sch_tbf_prio.sh6
-rwxr-xr-xtools/testing/selftests/net/forwarding/sch_tbf_root.sh33
-rw-r--r--tools/testing/selftests/net/forwarding/settings1
-rwxr-xr-xtools/testing/selftests/net/forwarding/skbedit_priority.sh170
-rwxr-xr-xtools/testing/selftests/net/forwarding/tc_actions.sh269
-rwxr-xr-xtools/testing/selftests/net/forwarding/tc_chains.sh205
-rw-r--r--tools/testing/selftests/net/forwarding/tc_common.sh26
-rwxr-xr-xtools/testing/selftests/net/forwarding/tc_flower.sh411
-rwxr-xr-xtools/testing/selftests/net/forwarding/tc_flower_router.sh172
-rwxr-xr-xtools/testing/selftests/net/forwarding/tc_police.sh385
-rwxr-xr-xtools/testing/selftests/net/forwarding/tc_shblocks.sh152
-rwxr-xr-xtools/testing/selftests/net/forwarding/tc_vlan_modify.sh164
-rwxr-xr-xtools/testing/selftests/net/forwarding/vxlan_asymmetric.sh577
-rwxr-xr-xtools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh786
-rwxr-xr-xtools/testing/selftests/net/forwarding/vxlan_bridge_1d_port_8472.sh10
-rwxr-xr-xtools/testing/selftests/net/forwarding/vxlan_bridge_1q.sh860
-rwxr-xr-xtools/testing/selftests/net/forwarding/vxlan_bridge_1q_port_8472.sh10
-rwxr-xr-xtools/testing/selftests/net/forwarding/vxlan_symmetric.sh561
-rw-r--r--tools/testing/selftests/net/hwtstamp_config.c135
-rwxr-xr-xtools/testing/selftests/net/icmp_redirect.sh537
-rwxr-xr-xtools/testing/selftests/net/in_netns.sh23
-rwxr-xr-xtools/testing/selftests/net/ip6_gre_headroom.sh65
-rw-r--r--tools/testing/selftests/net/ip_defrag.c472
-rwxr-xr-xtools/testing/selftests/net/ip_defrag.sh64
-rw-r--r--tools/testing/selftests/net/ipsec.c2195
-rw-r--r--tools/testing/selftests/net/ipv6_flowlabel.c229
-rwxr-xr-xtools/testing/selftests/net/ipv6_flowlabel.sh21
-rw-r--r--tools/testing/selftests/net/ipv6_flowlabel_mgr.c199
-rwxr-xr-xtools/testing/selftests/net/l2tp.sh382
-rw-r--r--tools/testing/selftests/net/mptcp/.gitignore4
-rw-r--r--tools/testing/selftests/net/mptcp/Makefile17
-rw-r--r--tools/testing/selftests/net/mptcp/config9
-rwxr-xr-xtools/testing/selftests/net/mptcp/diag.sh125
-rw-r--r--tools/testing/selftests/net/mptcp/mptcp_connect.c912
-rwxr-xr-xtools/testing/selftests/net/mptcp/mptcp_connect.sh697
-rwxr-xr-xtools/testing/selftests/net/mptcp/mptcp_join.sh629
-rw-r--r--tools/testing/selftests/net/mptcp/mptcp_lib.sh104
-rwxr-xr-xtools/testing/selftests/net/mptcp/pm_netlink.sh136
-rw-r--r--tools/testing/selftests/net/mptcp/pm_nl_ctl.c616
-rw-r--r--tools/testing/selftests/net/mptcp/settings1
-rwxr-xr-xtools/testing/selftests/net/mptcp/simult_flows.sh297
-rw-r--r--tools/testing/selftests/net/msg_zerocopy.c811
-rwxr-xr-xtools/testing/selftests/net/msg_zerocopy.sh122
-rwxr-xr-xtools/testing/selftests/net/netdevice.sh205
-rw-r--r--tools/testing/selftests/net/nettest.c1815
-rwxr-xr-xtools/testing/selftests/net/pmtu.sh1924
-rw-r--r--tools/testing/selftests/net/psock_fanout.c472
-rw-r--r--tools/testing/selftests/net/psock_lib.h144
-rw-r--r--tools/testing/selftests/net/psock_snd.c397
-rwxr-xr-xtools/testing/selftests/net/psock_snd.sh98
-rw-r--r--tools/testing/selftests/net/psock_tpacket.c850
-rw-r--r--tools/testing/selftests/net/reuseaddr_conflict.c114
-rw-r--r--tools/testing/selftests/net/reuseaddr_ports_exhausted.c162
-rwxr-xr-xtools/testing/selftests/net/reuseaddr_ports_exhausted.sh35
-rw-r--r--tools/testing/selftests/net/reuseport_addr_any.c278
-rwxr-xr-xtools/testing/selftests/net/reuseport_addr_any.sh4
-rw-r--r--tools/testing/selftests/net/reuseport_bpf.c641
-rw-r--r--tools/testing/selftests/net/reuseport_bpf_cpu.c259
-rw-r--r--tools/testing/selftests/net/reuseport_bpf_numa.c258
-rw-r--r--tools/testing/selftests/net/reuseport_dualstack.c210
-rwxr-xr-xtools/testing/selftests/net/route_localnet.sh74
-rwxr-xr-xtools/testing/selftests/net/rtnetlink.sh1301
-rwxr-xr-xtools/testing/selftests/net/run_afpackettests46
-rwxr-xr-xtools/testing/selftests/net/run_netsocktests13
-rw-r--r--tools/testing/selftests/net/rxtimestamp.c430
-rwxr-xr-xtools/testing/selftests/net/rxtimestamp.sh4
-rw-r--r--tools/testing/selftests/net/so_txtime.c393
-rwxr-xr-xtools/testing/selftests/net/so_txtime.sh36
-rw-r--r--tools/testing/selftests/net/socket.c93
-rw-r--r--tools/testing/selftests/net/tcp_fastopen_backup_key.c335
-rwxr-xr-xtools/testing/selftests/net/tcp_fastopen_backup_key.sh55
-rw-r--r--tools/testing/selftests/net/tcp_inq.c179
-rw-r--r--tools/testing/selftests/net/tcp_mmap.c517
-rwxr-xr-xtools/testing/selftests/net/test_blackhole_dev.sh11
-rwxr-xr-xtools/testing/selftests/net/test_bpf.sh11
-rwxr-xr-xtools/testing/selftests/net/test_vxlan_fdb_changelink.sh29
-rwxr-xr-xtools/testing/selftests/net/test_vxlan_under_vrf.sh129
-rw-r--r--tools/testing/selftests/net/timestamping.c515
-rw-r--r--tools/testing/selftests/net/tls.c1335
-rwxr-xr-xtools/testing/selftests/net/traceroute.sh322
-rw-r--r--tools/testing/selftests/net/txring_overwrite.c179
-rw-r--r--tools/testing/selftests/net/txtimestamp.c922
-rwxr-xr-xtools/testing/selftests/net/txtimestamp.sh82
-rwxr-xr-xtools/testing/selftests/net/udpgro.sh216
-rwxr-xr-xtools/testing/selftests/net/udpgro_bench.sh95
-rw-r--r--tools/testing/selftests/net/udpgso.c685
-rwxr-xr-xtools/testing/selftests/net/udpgso.sh29
-rwxr-xr-xtools/testing/selftests/net/udpgso_bench.sh151
-rw-r--r--tools/testing/selftests/net/udpgso_bench_rx.c409
-rw-r--r--tools/testing/selftests/net/udpgso_bench_tx.c734
-rwxr-xr-xtools/testing/selftests/net/vrf-xfrm-tests.sh436
-rwxr-xr-xtools/testing/selftests/net/vrf_route_leaking.sh626
-rwxr-xr-xtools/testing/selftests/net/vrf_strict_mode_test.sh396
-rwxr-xr-xtools/testing/selftests/net/xfrm_policy.sh486
-rw-r--r--tools/testing/selftests/netfilter/.gitignore2
-rw-r--r--tools/testing/selftests/netfilter/Makefile13
-rwxr-xr-xtools/testing/selftests/netfilter/bridge_brouter.sh146
-rw-r--r--tools/testing/selftests/netfilter/config8
-rwxr-xr-xtools/testing/selftests/netfilter/conntrack_icmp_related.sh315
-rwxr-xr-xtools/testing/selftests/netfilter/conntrack_vrf.sh241
-rwxr-xr-xtools/testing/selftests/netfilter/ipvs.sh228
-rw-r--r--tools/testing/selftests/netfilter/nf-queue.c395
-rwxr-xr-xtools/testing/selftests/netfilter/nft_concat_range.sh1586
-rwxr-xr-xtools/testing/selftests/netfilter/nft_conntrack_helper.sh181
-rwxr-xr-xtools/testing/selftests/netfilter/nft_flowtable.sh420
-rwxr-xr-xtools/testing/selftests/netfilter/nft_meta.sh142
-rwxr-xr-xtools/testing/selftests/netfilter/nft_nat.sh914
-rwxr-xr-xtools/testing/selftests/netfilter/nft_queue.sh376
-rwxr-xr-xtools/testing/selftests/netfilter/nft_trans_stress.sh78
188 files changed, 60792 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/.gitignore b/tools/testing/selftests/net/.gitignore
new file mode 100644
index 000000000..61ae899cf
--- /dev/null
+++ b/tools/testing/selftests/net/.gitignore
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: GPL-2.0-only
+ipsec
+msg_zerocopy
+socket
+psock_fanout
+psock_snd
+psock_tpacket
+reuseport_addr_any
+reuseport_bpf
+reuseport_bpf_cpu
+reuseport_bpf_numa
+reuseport_dualstack
+reuseaddr_conflict
+tcp_mmap
+udpgso
+udpgso_bench_rx
+udpgso_bench_tx
+tcp_inq
+tls
+txring_overwrite
+ip_defrag
+ipv6_flowlabel
+ipv6_flowlabel_mgr
+so_txtime
+tcp_fastopen_backup_key
+nettest
+fin_ack_lat
+reuseaddr_ports_exhausted
+hwtstamp_config
+rxtimestamp
+timestamping
+txtimestamp
diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
new file mode 100644
index 000000000..ef352477c
--- /dev/null
+++ b/tools/testing/selftests/net/Makefile
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for net selftests
+
+CFLAGS = -Wall -Wl,--no-as-needed -O2 -g
+CFLAGS += -I../../../../usr/include/
+
+TEST_PROGS := run_netsocktests run_afpackettests test_bpf.sh netdevice.sh \
+ rtnetlink.sh xfrm_policy.sh test_blackhole_dev.sh
+TEST_PROGS += fib_tests.sh fib-onlink-tests.sh pmtu.sh udpgso.sh ip_defrag.sh
+TEST_PROGS += udpgso_bench.sh fib_rule_tests.sh msg_zerocopy.sh psock_snd.sh
+TEST_PROGS += udpgro_bench.sh udpgro.sh test_vxlan_under_vrf.sh reuseport_addr_any.sh
+TEST_PROGS += test_vxlan_fdb_changelink.sh so_txtime.sh ipv6_flowlabel.sh
+TEST_PROGS += tcp_fastopen_backup_key.sh fcnal-test.sh l2tp.sh traceroute.sh
+TEST_PROGS += fin_ack_lat.sh fib_nexthop_multiprefix.sh fib_nexthops.sh
+TEST_PROGS += altnames.sh icmp_redirect.sh ip6_gre_headroom.sh
+TEST_PROGS += route_localnet.sh
+TEST_PROGS += reuseaddr_ports_exhausted.sh
+TEST_PROGS += txtimestamp.sh
+TEST_PROGS += vrf-xfrm-tests.sh
+TEST_PROGS += rxtimestamp.sh
+TEST_PROGS += devlink_port_split.py
+TEST_PROGS += drop_monitor_tests.sh
+TEST_PROGS += vrf_route_leaking.sh
+TEST_PROGS_EXTENDED := in_netns.sh
+TEST_GEN_FILES = socket nettest
+TEST_GEN_FILES += psock_fanout psock_tpacket msg_zerocopy reuseport_addr_any
+TEST_GEN_FILES += tcp_mmap tcp_inq psock_snd txring_overwrite
+TEST_GEN_FILES += udpgso udpgso_bench_tx udpgso_bench_rx ip_defrag
+TEST_GEN_FILES += so_txtime ipv6_flowlabel ipv6_flowlabel_mgr
+TEST_GEN_FILES += tcp_fastopen_backup_key
+TEST_GEN_FILES += fin_ack_lat
+TEST_GEN_FILES += reuseaddr_ports_exhausted
+TEST_GEN_FILES += hwtstamp_config rxtimestamp timestamping txtimestamp
+TEST_GEN_FILES += ipsec
+TEST_GEN_PROGS = reuseport_bpf reuseport_bpf_cpu reuseport_bpf_numa
+TEST_GEN_PROGS += reuseport_dualstack reuseaddr_conflict tls
+
+KSFT_KHDR_INSTALL := 1
+include ../lib.mk
+
+$(OUTPUT)/reuseport_bpf_numa: LDLIBS += -lnuma
+$(OUTPUT)/tcp_mmap: LDLIBS += -lpthread
+$(OUTPUT)/tcp_inq: LDLIBS += -lpthread
diff --git a/tools/testing/selftests/net/altnames.sh b/tools/testing/selftests/net/altnames.sh
new file mode 100755
index 000000000..1ef9e4159
--- /dev/null
+++ b/tools/testing/selftests/net/altnames.sh
@@ -0,0 +1,75 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/forwarding
+
+ALL_TESTS="altnames_test"
+NUM_NETIFS=0
+source $lib_dir/lib.sh
+
+DUMMY_DEV=dummytest
+SHORT_NAME=shortname
+LONG_NAME=someveryveryveryveryveryverylongname
+
+altnames_test()
+{
+ RET=0
+ local output
+ local name
+
+ ip link property add $DUMMY_DEV altname $SHORT_NAME
+ check_err $? "Failed to add short alternative name"
+
+ output=$(ip -j -p link show $SHORT_NAME)
+ check_err $? "Failed to do link show with short alternative name"
+
+ name=$(echo $output | jq -e -r ".[0].altnames[0]")
+ check_err $? "Failed to get short alternative name from link show JSON"
+
+ [ "$name" == "$SHORT_NAME" ]
+ check_err $? "Got unexpected short alternative name from link show JSON"
+
+ ip -j -p link show $DUMMY_DEV &>/dev/null
+ check_err $? "Failed to do link show with original name"
+
+ ip link property add $DUMMY_DEV altname $LONG_NAME
+ check_err $? "Failed to add long alternative name"
+
+ output=$(ip -j -p link show $LONG_NAME)
+ check_err $? "Failed to do link show with long alternative name"
+
+ name=$(echo $output | jq -e -r ".[0].altnames[1]")
+ check_err $? "Failed to get long alternative name from link show JSON"
+
+ [ "$name" == "$LONG_NAME" ]
+ check_err $? "Got unexpected long alternative name from link show JSON"
+
+ ip link property del $DUMMY_DEV altname $SHORT_NAME
+ check_err $? "Failed to delete short alternative name"
+
+ ip -j -p link show $SHORT_NAME &>/dev/null
+ check_fail $? "Unexpected success while trying to do link show with deleted short alternative name"
+
+ # long name is left there on purpose to be removed alongside the device
+
+ log_test "altnames test"
+}
+
+setup_prepare()
+{
+ ip link add name $DUMMY_DEV type dummy
+}
+
+cleanup()
+{
+ pre_cleanup
+ ip link del name $DUMMY_DEV
+}
+
+trap cleanup EXIT
+
+setup_prepare
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/config b/tools/testing/selftests/net/config
new file mode 100644
index 000000000..4d5df8e1e
--- /dev/null
+++ b/tools/testing/selftests/net/config
@@ -0,0 +1,36 @@
+CONFIG_USER_NS=y
+CONFIG_BPF_SYSCALL=y
+CONFIG_TEST_BPF=m
+CONFIG_NUMA=y
+CONFIG_NET_VRF=y
+CONFIG_NET_L3_MASTER_DEV=y
+CONFIG_IPV6=y
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_VETH=y
+CONFIG_NET_IPVTI=y
+CONFIG_IPV6_VTI=y
+CONFIG_DUMMY=y
+CONFIG_BRIDGE=y
+CONFIG_VLAN_8021Q=y
+CONFIG_IFB=y
+CONFIG_NETFILTER=y
+CONFIG_NETFILTER_ADVANCED=y
+CONFIG_NF_CONNTRACK=m
+CONFIG_NF_NAT=m
+CONFIG_IP6_NF_IPTABLES=m
+CONFIG_IP_NF_IPTABLES=m
+CONFIG_IP6_NF_NAT=m
+CONFIG_IP_NF_NAT=m
+CONFIG_NF_TABLES=m
+CONFIG_NF_TABLES_IPV6=y
+CONFIG_NF_TABLES_IPV4=y
+CONFIG_NFT_NAT=m
+CONFIG_NET_SCH_FQ=m
+CONFIG_NET_SCH_ETF=m
+CONFIG_NET_SCH_NETEM=y
+CONFIG_TEST_BLACKHOLE_DEV=m
+CONFIG_KALLSYMS=y
+CONFIG_TRACEPOINTS=y
+CONFIG_NET_DROP_MONITOR=m
+CONFIG_NETDEVSIM=m
+CONFIG_NET_FOU=m
diff --git a/tools/testing/selftests/net/devlink_port_split.py b/tools/testing/selftests/net/devlink_port_split.py
new file mode 100755
index 000000000..f0fbd7367
--- /dev/null
+++ b/tools/testing/selftests/net/devlink_port_split.py
@@ -0,0 +1,307 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+from subprocess import PIPE, Popen
+import json
+import time
+import argparse
+import collections
+import sys
+
+#
+# Test port split configuration using devlink-port lanes attribute.
+# The test is skipped in case the attribute is not available.
+#
+# First, check that all the ports with 1 lane fail to split.
+# Second, check that all the ports with more than 1 lane can be split
+# to all valid configurations (e.g., split to 2, split to 4 etc.)
+#
+
+
+Port = collections.namedtuple('Port', 'bus_info name')
+
+
+def run_command(cmd, should_fail=False):
+ """
+ Run a command in subprocess.
+ Return: Tuple of (stdout, stderr).
+ """
+
+ p = Popen(cmd, stdout=PIPE, stderr=PIPE, shell=True)
+ stdout, stderr = p.communicate()
+ stdout, stderr = stdout.decode(), stderr.decode()
+
+ if stderr != "" and not should_fail:
+ print("Error sending command: %s" % cmd)
+ print(stdout)
+ print(stderr)
+ return stdout, stderr
+
+
+class devlink_ports(object):
+ """
+ Class that holds information on the devlink ports, required to the tests;
+ if_names: A list of interfaces in the devlink ports.
+ """
+
+ def get_if_names(dev):
+ """
+ Get a list of physical devlink ports.
+ Return: Array of tuples (bus_info/port, if_name).
+ """
+
+ arr = []
+
+ cmd = "devlink -j port show"
+ stdout, stderr = run_command(cmd)
+ assert stderr == ""
+ ports = json.loads(stdout)['port']
+
+ validate_devlink_output(ports, 'flavour')
+
+ for port in ports:
+ if dev in port:
+ if ports[port]['flavour'] == 'physical':
+ arr.append(Port(bus_info=port, name=ports[port]['netdev']))
+
+ return arr
+
+ def __init__(self, dev):
+ self.if_names = devlink_ports.get_if_names(dev)
+
+
+def get_max_lanes(port):
+ """
+ Get the $port's maximum number of lanes.
+ Return: number of lanes, e.g. 1, 2, 4 and 8.
+ """
+
+ cmd = "devlink -j port show %s" % port
+ stdout, stderr = run_command(cmd)
+ assert stderr == ""
+ values = list(json.loads(stdout)['port'].values())[0]
+
+ if 'lanes' in values:
+ lanes = values['lanes']
+ else:
+ lanes = 0
+ return lanes
+
+
+def get_split_ability(port):
+ """
+ Get the $port split ability.
+ Return: split ability, true or false.
+ """
+
+ cmd = "devlink -j port show %s" % port.name
+ stdout, stderr = run_command(cmd)
+ assert stderr == ""
+ values = list(json.loads(stdout)['port'].values())[0]
+
+ return values['splittable']
+
+
+def split(k, port, should_fail=False):
+ """
+ Split $port into $k ports.
+ If should_fail == True, the split should fail. Otherwise, should pass.
+ Return: Array of sub ports after splitting.
+ If the $port wasn't split, the array will be empty.
+ """
+
+ cmd = "devlink port split %s count %s" % (port.bus_info, k)
+ stdout, stderr = run_command(cmd, should_fail=should_fail)
+
+ if should_fail:
+ if not test(stderr != "", "%s is unsplittable" % port.name):
+ print("split an unsplittable port %s" % port.name)
+ return create_split_group(port, k)
+ else:
+ if stderr == "":
+ return create_split_group(port, k)
+ print("didn't split a splittable port %s" % port.name)
+
+ return []
+
+
+def unsplit(port):
+ """
+ Unsplit $port.
+ """
+
+ cmd = "devlink port unsplit %s" % port
+ stdout, stderr = run_command(cmd)
+ test(stderr == "", "Unsplit port %s" % port)
+
+
+def exists(port, dev):
+ """
+ Check if $port exists in the devlink ports.
+ Return: True is so, False otherwise.
+ """
+
+ return any(dev_port.name == port
+ for dev_port in devlink_ports.get_if_names(dev))
+
+
+def exists_and_lanes(ports, lanes, dev):
+ """
+ Check if every port in the list $ports exists in the devlink ports and has
+ $lanes number of lanes after splitting.
+ Return: True if both are True, False otherwise.
+ """
+
+ for port in ports:
+ max_lanes = get_max_lanes(port)
+ if not exists(port, dev):
+ print("port %s doesn't exist in devlink ports" % port)
+ return False
+ if max_lanes != lanes:
+ print("port %s has %d lanes, but %s were expected"
+ % (port, lanes, max_lanes))
+ return False
+ return True
+
+
+def test(cond, msg):
+ """
+ Check $cond and print a message accordingly.
+ Return: True is pass, False otherwise.
+ """
+
+ if cond:
+ print("TEST: %-60s [ OK ]" % msg)
+ else:
+ print("TEST: %-60s [FAIL]" % msg)
+
+ return cond
+
+
+def create_split_group(port, k):
+ """
+ Create the split group for $port.
+ Return: Array with $k elements, which are the split port group.
+ """
+
+ return list(port.name + "s" + str(i) for i in range(k))
+
+
+def split_unsplittable_port(port, k):
+ """
+ Test that splitting of unsplittable port fails.
+ """
+
+ # split to max
+ new_split_group = split(k, port, should_fail=True)
+
+ if new_split_group != []:
+ unsplit(port.bus_info)
+
+
+def split_splittable_port(port, k, lanes, dev):
+ """
+ Test that splitting of splittable port passes correctly.
+ """
+
+ new_split_group = split(k, port)
+
+ # Once the split command ends, it takes some time to the sub ifaces'
+ # to get their names. Use udevadm to continue only when all current udev
+ # events are handled.
+ cmd = "udevadm settle"
+ stdout, stderr = run_command(cmd)
+ assert stderr == ""
+
+ if new_split_group != []:
+ test(exists_and_lanes(new_split_group, lanes/k, dev),
+ "split port %s into %s" % (port.name, k))
+
+ unsplit(port.bus_info)
+
+
+def validate_devlink_output(devlink_data, target_property=None):
+ """
+ Determine if test should be skipped by checking:
+ 1. devlink_data contains values
+ 2. The target_property exist in devlink_data
+ """
+ skip_reason = None
+ if any(devlink_data.values()):
+ if target_property:
+ skip_reason = "{} not found in devlink output, test skipped".format(target_property)
+ for key in devlink_data:
+ if target_property in devlink_data[key]:
+ skip_reason = None
+ else:
+ skip_reason = 'devlink output is empty, test skipped'
+
+ if skip_reason:
+ print(skip_reason)
+ sys.exit(KSFT_SKIP)
+
+
+def make_parser():
+ parser = argparse.ArgumentParser(description='A test for port splitting.')
+ parser.add_argument('--dev',
+ help='The devlink handle of the device under test. ' +
+ 'The default is the first registered devlink ' +
+ 'handle.')
+
+ return parser
+
+
+def main(cmdline=None):
+ parser = make_parser()
+ args = parser.parse_args(cmdline)
+
+ dev = args.dev
+ if not dev:
+ cmd = "devlink -j dev show"
+ stdout, stderr = run_command(cmd)
+ assert stderr == ""
+
+ validate_devlink_output(json.loads(stdout))
+ devs = json.loads(stdout)['dev']
+ dev = list(devs.keys())[0]
+
+ cmd = "devlink dev show %s" % dev
+ stdout, stderr = run_command(cmd)
+ if stderr != "":
+ print("devlink device %s can not be found" % dev)
+ sys.exit(1)
+
+ ports = devlink_ports(dev)
+
+ found_max_lanes = False
+ for port in ports.if_names:
+ max_lanes = get_max_lanes(port.name)
+
+ # If max lanes is 0, do not test port splitting at all
+ if max_lanes == 0:
+ continue
+
+ # If 1 lane, shouldn't be able to split
+ elif max_lanes == 1:
+ test(not get_split_ability(port),
+ "%s should not be able to split" % port.name)
+ split_unsplittable_port(port, max_lanes)
+
+ # Else, splitting should pass and all the split ports should exist.
+ else:
+ lane = max_lanes
+ test(get_split_ability(port),
+ "%s should be able to split" % port.name)
+ while lane > 1:
+ split_splittable_port(port, lane, max_lanes, dev)
+
+ lane //= 2
+ found_max_lanes = True
+
+ if not found_max_lanes:
+ print(f"Test not started, no port of device {dev} reports max_lanes")
+ sys.exit(KSFT_SKIP)
+
+
+if __name__ == "__main__":
+ main()
diff --git a/tools/testing/selftests/net/drop_monitor_tests.sh b/tools/testing/selftests/net/drop_monitor_tests.sh
new file mode 100755
index 000000000..b7650e30d
--- /dev/null
+++ b/tools/testing/selftests/net/drop_monitor_tests.sh
@@ -0,0 +1,215 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test is for checking drop monitor functionality.
+
+ret=0
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+# all tests in this script. Can be overridden with -t option
+TESTS="
+ sw_drops
+ hw_drops
+"
+
+IP="ip -netns ns1"
+TC="tc -netns ns1"
+DEVLINK="devlink -N ns1"
+NS_EXEC="ip netns exec ns1"
+NETDEVSIM_PATH=/sys/bus/netdevsim/
+DEV_ADDR=1337
+DEV=netdevsim${DEV_ADDR}
+DEVLINK_DEV=netdevsim/${DEV}
+
+log_test()
+{
+ local rc=$1
+ local expected=$2
+ local msg="$3"
+
+ if [ ${rc} -eq ${expected} ]; then
+ printf " TEST: %-60s [ OK ]\n" "${msg}"
+ nsuccess=$((nsuccess+1))
+ else
+ ret=1
+ nfail=$((nfail+1))
+ printf " TEST: %-60s [FAIL]\n" "${msg}"
+ fi
+}
+
+setup()
+{
+ modprobe netdevsim &> /dev/null
+
+ set -e
+ ip netns add ns1
+ $IP link add dummy10 up type dummy
+
+ $NS_EXEC echo "$DEV_ADDR 1" > ${NETDEVSIM_PATH}/new_device
+ udevadm settle
+ local netdev=$($NS_EXEC ls ${NETDEVSIM_PATH}/devices/${DEV}/net/)
+ $IP link set dev $netdev up
+
+ set +e
+}
+
+cleanup()
+{
+ $NS_EXEC echo "$DEV_ADDR" > ${NETDEVSIM_PATH}/del_device
+ ip netns del ns1
+}
+
+sw_drops_test()
+{
+ echo
+ echo "Software drops test"
+
+ setup
+
+ local dir=$(mktemp -d)
+
+ $TC qdisc add dev dummy10 clsact
+ $TC filter add dev dummy10 egress pref 1 handle 101 proto ip \
+ flower dst_ip 192.0.2.10 action drop
+
+ $NS_EXEC mausezahn dummy10 -a 00:11:22:33:44:55 -b 00:aa:bb:cc:dd:ee \
+ -A 192.0.2.1 -B 192.0.2.10 -t udp sp=12345,dp=54321 -c 0 -q \
+ -d 100msec &
+ timeout 5 dwdump -o sw -w ${dir}/packets.pcap
+ (( $(tshark -r ${dir}/packets.pcap \
+ -Y 'ip.dst == 192.0.2.10' 2> /dev/null | wc -l) != 0))
+ log_test $? 0 "Capturing active software drops"
+
+ rm ${dir}/packets.pcap
+
+ { kill %% && wait %%; } 2>/dev/null
+ timeout 5 dwdump -o sw -w ${dir}/packets.pcap
+ (( $(tshark -r ${dir}/packets.pcap \
+ -Y 'ip.dst == 192.0.2.10' 2> /dev/null | wc -l) == 0))
+ log_test $? 0 "Capturing inactive software drops"
+
+ rm -r $dir
+
+ cleanup
+}
+
+hw_drops_test()
+{
+ echo
+ echo "Hardware drops test"
+
+ setup
+
+ local dir=$(mktemp -d)
+
+ $DEVLINK trap set $DEVLINK_DEV trap blackhole_route action trap
+ timeout 5 dwdump -o hw -w ${dir}/packets.pcap
+ (( $(tshark -r ${dir}/packets.pcap \
+ -Y 'net_dm.hw_trap_name== blackhole_route' 2> /dev/null \
+ | wc -l) != 0))
+ log_test $? 0 "Capturing active hardware drops"
+
+ rm ${dir}/packets.pcap
+
+ $DEVLINK trap set $DEVLINK_DEV trap blackhole_route action drop
+ timeout 5 dwdump -o hw -w ${dir}/packets.pcap
+ (( $(tshark -r ${dir}/packets.pcap \
+ -Y 'net_dm.hw_trap_name== blackhole_route' 2> /dev/null \
+ | wc -l) == 0))
+ log_test $? 0 "Capturing inactive hardware drops"
+
+ rm -r $dir
+
+ cleanup
+}
+
+################################################################################
+# usage
+
+usage()
+{
+ cat <<EOF
+usage: ${0##*/} OPTS
+
+ -t <test> Test(s) to run (default: all)
+ (options: $TESTS)
+EOF
+}
+
+################################################################################
+# main
+
+while getopts ":t:h" opt; do
+ case $opt in
+ t) TESTS=$OPTARG;;
+ h) usage; exit 0;;
+ *) usage; exit 1;;
+ esac
+done
+
+if [ "$(id -u)" -ne 0 ];then
+ echo "SKIP: Need root privileges"
+ exit $ksft_skip;
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v devlink)" ]; then
+ echo "SKIP: Could not run test without devlink tool"
+ exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v tshark)" ]; then
+ echo "SKIP: Could not run test without tshark tool"
+ exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v dwdump)" ]; then
+ echo "SKIP: Could not run test without dwdump tool"
+ exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v udevadm)" ]; then
+ echo "SKIP: Could not run test without udevadm tool"
+ exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v timeout)" ]; then
+ echo "SKIP: Could not run test without timeout tool"
+ exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v mausezahn)" ]; then
+ echo "SKIP: Could not run test without mausezahn tool"
+ exit $ksft_skip
+fi
+
+tshark -G fields 2> /dev/null | grep -q net_dm
+if [ $? -ne 0 ]; then
+ echo "SKIP: tshark too old, missing net_dm dissector"
+ exit $ksft_skip
+fi
+
+# start clean
+cleanup &> /dev/null
+
+for t in $TESTS
+do
+ case $t in
+ sw_drops|sw) sw_drops_test;;
+ hw_drops|hw) hw_drops_test;;
+
+ help) echo "Test names: $TESTS"; exit 0;;
+ esac
+done
+
+if [ "$TESTS" != "none" ]; then
+ printf "\nTests passed: %3d\n" ${nsuccess}
+ printf "Tests failed: %3d\n" ${nfail}
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh
new file mode 100755
index 000000000..e13b0fb63
--- /dev/null
+++ b/tools/testing/selftests/net/fcnal-test.sh
@@ -0,0 +1,4034 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2019 David Ahern <dsahern@gmail.com>. All rights reserved.
+#
+# IPv4 and IPv6 functional tests focusing on VRF and routing lookups
+# for various permutations:
+# 1. icmp, tcp, udp and netfilter
+# 2. client, server, no-server
+# 3. global address on interface
+# 4. global address on 'lo'
+# 5. remote and local traffic
+# 6. VRF and non-VRF permutations
+#
+# Setup:
+# ns-A | ns-B
+# No VRF case:
+# [ lo ] [ eth1 ]---|---[ eth1 ] [ lo ]
+# remote address
+# VRF case:
+# [ red ]---[ eth1 ]---|---[ eth1 ] [ lo ]
+#
+# ns-A:
+# eth1: 172.16.1.1/24, 2001:db8:1::1/64
+# lo: 127.0.0.1/8, ::1/128
+# 172.16.2.1/32, 2001:db8:2::1/128
+# red: 127.0.0.1/8, ::1/128
+# 172.16.3.1/32, 2001:db8:3::1/128
+#
+# ns-B:
+# eth1: 172.16.1.2/24, 2001:db8:1::2/64
+# lo2: 127.0.0.1/8, ::1/128
+# 172.16.2.2/32, 2001:db8:2::2/128
+#
+# ns-A to ns-C connection - only for VRF and same config
+# as ns-A to ns-B
+#
+# server / client nomenclature relative to ns-A
+
+VERBOSE=0
+
+NSA_DEV=eth1
+NSA_DEV2=eth2
+NSB_DEV=eth1
+NSC_DEV=eth2
+VRF=red
+VRF_TABLE=1101
+
+# IPv4 config
+NSA_IP=172.16.1.1
+NSB_IP=172.16.1.2
+VRF_IP=172.16.3.1
+NS_NET=172.16.1.0/24
+
+# IPv6 config
+NSA_IP6=2001:db8:1::1
+NSB_IP6=2001:db8:1::2
+VRF_IP6=2001:db8:3::1
+NS_NET6=2001:db8:1::/120
+
+NSA_LO_IP=172.16.2.1
+NSB_LO_IP=172.16.2.2
+NSA_LO_IP6=2001:db8:2::1
+NSB_LO_IP6=2001:db8:2::2
+
+MD5_PW=abc123
+MD5_WRONG_PW=abc1234
+
+MCAST=ff02::1
+# set after namespace create
+NSA_LINKIP6=
+NSB_LINKIP6=
+
+NSA=ns-A
+NSB=ns-B
+NSC=ns-C
+
+NSA_CMD="ip netns exec ${NSA}"
+NSB_CMD="ip netns exec ${NSB}"
+NSC_CMD="ip netns exec ${NSC}"
+
+which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
+
+# Check if FIPS mode is enabled
+if [ -f /proc/sys/crypto/fips_enabled ]; then
+ fips_enabled=`cat /proc/sys/crypto/fips_enabled`
+else
+ fips_enabled=0
+fi
+
+################################################################################
+# utilities
+
+log_test()
+{
+ local rc=$1
+ local expected=$2
+ local msg="$3"
+
+ [ "${VERBOSE}" = "1" ] && echo
+
+ if [ ${rc} -eq ${expected} ]; then
+ nsuccess=$((nsuccess+1))
+ printf "TEST: %-70s [ OK ]\n" "${msg}"
+ else
+ nfail=$((nfail+1))
+ printf "TEST: %-70s [FAIL]\n" "${msg}"
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+ fi
+
+ if [ "${PAUSE}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+
+ kill_procs
+}
+
+log_test_addr()
+{
+ local addr=$1
+ local rc=$2
+ local expected=$3
+ local msg="$4"
+ local astr
+
+ astr=$(addr2str ${addr})
+ log_test $rc $expected "$msg - ${astr}"
+}
+
+log_section()
+{
+ echo
+ echo "###########################################################################"
+ echo "$*"
+ echo "###########################################################################"
+ echo
+}
+
+log_subsection()
+{
+ echo
+ echo "#################################################################"
+ echo "$*"
+ echo
+}
+
+log_start()
+{
+ # make sure we have no test instances running
+ kill_procs
+
+ if [ "${VERBOSE}" = "1" ]; then
+ echo
+ echo "#######################################################"
+ fi
+}
+
+log_debug()
+{
+ if [ "${VERBOSE}" = "1" ]; then
+ echo
+ echo "$*"
+ echo
+ fi
+}
+
+show_hint()
+{
+ if [ "${VERBOSE}" = "1" ]; then
+ echo "HINT: $*"
+ echo
+ fi
+}
+
+kill_procs()
+{
+ killall nettest ping ping6 >/dev/null 2>&1
+ sleep 1
+}
+
+do_run_cmd()
+{
+ local cmd="$*"
+ local out
+
+ if [ "$VERBOSE" = "1" ]; then
+ echo "COMMAND: ${cmd}"
+ fi
+
+ out=$($cmd 2>&1)
+ rc=$?
+ if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+ echo "$out"
+ fi
+
+ return $rc
+}
+
+run_cmd()
+{
+ do_run_cmd ${NSA_CMD} $*
+}
+
+run_cmd_nsb()
+{
+ do_run_cmd ${NSB_CMD} $*
+}
+
+run_cmd_nsc()
+{
+ do_run_cmd ${NSC_CMD} $*
+}
+
+setup_cmd()
+{
+ local cmd="$*"
+ local rc
+
+ run_cmd ${cmd}
+ rc=$?
+ if [ $rc -ne 0 ]; then
+ # show user the command if not done so already
+ if [ "$VERBOSE" = "0" ]; then
+ echo "setup command: $cmd"
+ fi
+ echo "failed. stopping tests"
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "hit enter to continue"
+ read a
+ fi
+ exit $rc
+ fi
+}
+
+setup_cmd_nsb()
+{
+ local cmd="$*"
+ local rc
+
+ run_cmd_nsb ${cmd}
+ rc=$?
+ if [ $rc -ne 0 ]; then
+ # show user the command if not done so already
+ if [ "$VERBOSE" = "0" ]; then
+ echo "setup command: $cmd"
+ fi
+ echo "failed. stopping tests"
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "hit enter to continue"
+ read a
+ fi
+ exit $rc
+ fi
+}
+
+setup_cmd_nsc()
+{
+ local cmd="$*"
+ local rc
+
+ run_cmd_nsc ${cmd}
+ rc=$?
+ if [ $rc -ne 0 ]; then
+ # show user the command if not done so already
+ if [ "$VERBOSE" = "0" ]; then
+ echo "setup command: $cmd"
+ fi
+ echo "failed. stopping tests"
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "hit enter to continue"
+ read a
+ fi
+ exit $rc
+ fi
+}
+
+# set sysctl values in NS-A
+set_sysctl()
+{
+ echo "SYSCTL: $*"
+ echo
+ run_cmd sysctl -q -w $*
+}
+
+################################################################################
+# Setup for tests
+
+addr2str()
+{
+ case "$1" in
+ 127.0.0.1) echo "loopback";;
+ ::1) echo "IPv6 loopback";;
+
+ ${NSA_IP}) echo "ns-A IP";;
+ ${NSA_IP6}) echo "ns-A IPv6";;
+ ${NSA_LO_IP}) echo "ns-A loopback IP";;
+ ${NSA_LO_IP6}) echo "ns-A loopback IPv6";;
+ ${NSA_LINKIP6}|${NSA_LINKIP6}%*) echo "ns-A IPv6 LLA";;
+
+ ${NSB_IP}) echo "ns-B IP";;
+ ${NSB_IP6}) echo "ns-B IPv6";;
+ ${NSB_LO_IP}) echo "ns-B loopback IP";;
+ ${NSB_LO_IP6}) echo "ns-B loopback IPv6";;
+ ${NSB_LINKIP6}|${NSB_LINKIP6}%*) echo "ns-B IPv6 LLA";;
+
+ ${VRF_IP}) echo "VRF IP";;
+ ${VRF_IP6}) echo "VRF IPv6";;
+
+ ${MCAST}%*) echo "multicast IP";;
+
+ *) echo "unknown";;
+ esac
+}
+
+get_linklocal()
+{
+ local ns=$1
+ local dev=$2
+ local addr
+
+ addr=$(ip -netns ${ns} -6 -br addr show dev ${dev} | \
+ awk '{
+ for (i = 3; i <= NF; ++i) {
+ if ($i ~ /^fe80/)
+ print $i
+ }
+ }'
+ )
+ addr=${addr/\/*}
+
+ [ -z "$addr" ] && return 1
+
+ echo $addr
+
+ return 0
+}
+
+################################################################################
+# create namespaces and vrf
+
+create_vrf()
+{
+ local ns=$1
+ local vrf=$2
+ local table=$3
+ local addr=$4
+ local addr6=$5
+
+ ip -netns ${ns} link add ${vrf} type vrf table ${table}
+ ip -netns ${ns} link set ${vrf} up
+ ip -netns ${ns} route add vrf ${vrf} unreachable default metric 8192
+ ip -netns ${ns} -6 route add vrf ${vrf} unreachable default metric 8192
+
+ ip -netns ${ns} addr add 127.0.0.1/8 dev ${vrf}
+ ip -netns ${ns} -6 addr add ::1 dev ${vrf} nodad
+ if [ "${addr}" != "-" ]; then
+ ip -netns ${ns} addr add dev ${vrf} ${addr}
+ fi
+ if [ "${addr6}" != "-" ]; then
+ ip -netns ${ns} -6 addr add dev ${vrf} ${addr6}
+ fi
+
+ ip -netns ${ns} ru del pref 0
+ ip -netns ${ns} ru add pref 32765 from all lookup local
+ ip -netns ${ns} -6 ru del pref 0
+ ip -netns ${ns} -6 ru add pref 32765 from all lookup local
+}
+
+create_ns()
+{
+ local ns=$1
+ local addr=$2
+ local addr6=$3
+
+ ip netns add ${ns}
+
+ ip -netns ${ns} link set lo up
+ if [ "${addr}" != "-" ]; then
+ ip -netns ${ns} addr add dev lo ${addr}
+ fi
+ if [ "${addr6}" != "-" ]; then
+ ip -netns ${ns} -6 addr add dev lo ${addr6}
+ fi
+
+ ip -netns ${ns} ro add unreachable default metric 8192
+ ip -netns ${ns} -6 ro add unreachable default metric 8192
+
+ ip netns exec ${ns} sysctl -qw net.ipv4.ip_forward=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.forwarding=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.forwarding=1
+}
+
+# create veth pair to connect namespaces and apply addresses.
+connect_ns()
+{
+ local ns1=$1
+ local ns1_dev=$2
+ local ns1_addr=$3
+ local ns1_addr6=$4
+ local ns2=$5
+ local ns2_dev=$6
+ local ns2_addr=$7
+ local ns2_addr6=$8
+
+ ip -netns ${ns1} li add ${ns1_dev} type veth peer name tmp
+ ip -netns ${ns1} li set ${ns1_dev} up
+ ip -netns ${ns1} li set tmp netns ${ns2} name ${ns2_dev}
+ ip -netns ${ns2} li set ${ns2_dev} up
+
+ if [ "${ns1_addr}" != "-" ]; then
+ ip -netns ${ns1} addr add dev ${ns1_dev} ${ns1_addr}
+ ip -netns ${ns2} addr add dev ${ns2_dev} ${ns2_addr}
+ fi
+
+ if [ "${ns1_addr6}" != "-" ]; then
+ ip -netns ${ns1} addr add dev ${ns1_dev} ${ns1_addr6}
+ ip -netns ${ns2} addr add dev ${ns2_dev} ${ns2_addr6}
+ fi
+}
+
+cleanup()
+{
+ # explicit cleanups to check those code paths
+ ip netns | grep -q ${NSA}
+ if [ $? -eq 0 ]; then
+ ip -netns ${NSA} link delete ${VRF}
+ ip -netns ${NSA} ro flush table ${VRF_TABLE}
+
+ ip -netns ${NSA} addr flush dev ${NSA_DEV}
+ ip -netns ${NSA} -6 addr flush dev ${NSA_DEV}
+ ip -netns ${NSA} link set dev ${NSA_DEV} down
+ ip -netns ${NSA} link del dev ${NSA_DEV}
+
+ ip netns pids ${NSA} | xargs kill 2>/dev/null
+ ip netns del ${NSA}
+ fi
+
+ ip netns pids ${NSB} | xargs kill 2>/dev/null
+ ip netns del ${NSB}
+ ip netns pids ${NSC} | xargs kill 2>/dev/null
+ ip netns del ${NSC} >/dev/null 2>&1
+}
+
+cleanup_vrf_dup()
+{
+ ip link del ${NSA_DEV2} >/dev/null 2>&1
+ ip netns pids ${NSC} | xargs kill 2>/dev/null
+ ip netns del ${NSC} >/dev/null 2>&1
+}
+
+setup_vrf_dup()
+{
+ # some VRF tests use ns-C which has the same config as
+ # ns-B but for a device NOT in the VRF
+ create_ns ${NSC} "-" "-"
+ connect_ns ${NSA} ${NSA_DEV2} ${NSA_IP}/24 ${NSA_IP6}/64 \
+ ${NSC} ${NSC_DEV} ${NSB_IP}/24 ${NSB_IP6}/64
+}
+
+setup()
+{
+ local with_vrf=${1}
+
+ # make sure we are starting with a clean slate
+ kill_procs
+ cleanup 2>/dev/null
+
+ log_debug "Configuring network namespaces"
+ set -e
+
+ create_ns ${NSA} ${NSA_LO_IP}/32 ${NSA_LO_IP6}/128
+ create_ns ${NSB} ${NSB_LO_IP}/32 ${NSB_LO_IP6}/128
+ connect_ns ${NSA} ${NSA_DEV} ${NSA_IP}/24 ${NSA_IP6}/64 \
+ ${NSB} ${NSB_DEV} ${NSB_IP}/24 ${NSB_IP6}/64
+
+ NSA_LINKIP6=$(get_linklocal ${NSA} ${NSA_DEV})
+ NSB_LINKIP6=$(get_linklocal ${NSB} ${NSB_DEV})
+
+ # tell ns-A how to get to remote addresses of ns-B
+ if [ "${with_vrf}" = "yes" ]; then
+ create_vrf ${NSA} ${VRF} ${VRF_TABLE} ${VRF_IP} ${VRF_IP6}
+
+ ip -netns ${NSA} link set dev ${NSA_DEV} vrf ${VRF}
+ ip -netns ${NSA} ro add vrf ${VRF} ${NSB_LO_IP}/32 via ${NSB_IP} dev ${NSA_DEV}
+ ip -netns ${NSA} -6 ro add vrf ${VRF} ${NSB_LO_IP6}/128 via ${NSB_IP6} dev ${NSA_DEV}
+
+ ip -netns ${NSB} ro add ${VRF_IP}/32 via ${NSA_IP} dev ${NSB_DEV}
+ ip -netns ${NSB} -6 ro add ${VRF_IP6}/128 via ${NSA_IP6} dev ${NSB_DEV}
+ else
+ ip -netns ${NSA} ro add ${NSB_LO_IP}/32 via ${NSB_IP} dev ${NSA_DEV}
+ ip -netns ${NSA} ro add ${NSB_LO_IP6}/128 via ${NSB_IP6} dev ${NSA_DEV}
+ fi
+
+
+ # tell ns-B how to get to remote addresses of ns-A
+ ip -netns ${NSB} ro add ${NSA_LO_IP}/32 via ${NSA_IP} dev ${NSB_DEV}
+ ip -netns ${NSB} ro add ${NSA_LO_IP6}/128 via ${NSA_IP6} dev ${NSB_DEV}
+
+ set +e
+
+ sleep 1
+}
+
+setup_lla_only()
+{
+ # make sure we are starting with a clean slate
+ kill_procs
+ cleanup 2>/dev/null
+
+ log_debug "Configuring network namespaces"
+ set -e
+
+ create_ns ${NSA} "-" "-"
+ create_ns ${NSB} "-" "-"
+ create_ns ${NSC} "-" "-"
+ connect_ns ${NSA} ${NSA_DEV} "-" "-" \
+ ${NSB} ${NSB_DEV} "-" "-"
+ connect_ns ${NSA} ${NSA_DEV2} "-" "-" \
+ ${NSC} ${NSC_DEV} "-" "-"
+
+ NSA_LINKIP6=$(get_linklocal ${NSA} ${NSA_DEV})
+ NSB_LINKIP6=$(get_linklocal ${NSB} ${NSB_DEV})
+ NSC_LINKIP6=$(get_linklocal ${NSC} ${NSC_DEV})
+
+ create_vrf ${NSA} ${VRF} ${VRF_TABLE} "-" "-"
+ ip -netns ${NSA} link set dev ${NSA_DEV} vrf ${VRF}
+ ip -netns ${NSA} link set dev ${NSA_DEV2} vrf ${VRF}
+
+ set +e
+
+ sleep 1
+}
+
+################################################################################
+# IPv4
+
+ipv4_ping_novrf()
+{
+ local a
+
+ #
+ # out
+ #
+ for a in ${NSB_IP} ${NSB_LO_IP}
+ do
+ log_start
+ run_cmd ping -c1 -w1 ${a}
+ log_test_addr ${a} $? 0 "ping out"
+
+ log_start
+ run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+ log_test_addr ${a} $? 0 "ping out, device bind"
+
+ log_start
+ run_cmd ping -c1 -w1 -I ${NSA_LO_IP} ${a}
+ log_test_addr ${a} $? 0 "ping out, address bind"
+ done
+
+ #
+ # in
+ #
+ for a in ${NSA_IP} ${NSA_LO_IP}
+ do
+ log_start
+ run_cmd_nsb ping -c1 -w1 ${a}
+ log_test_addr ${a} $? 0 "ping in"
+ done
+
+ #
+ # local traffic
+ #
+ for a in ${NSA_IP} ${NSA_LO_IP} 127.0.0.1
+ do
+ log_start
+ run_cmd ping -c1 -w1 ${a}
+ log_test_addr ${a} $? 0 "ping local"
+ done
+
+ #
+ # local traffic, socket bound to device
+ #
+ # address on device
+ a=${NSA_IP}
+ log_start
+ run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+ log_test_addr ${a} $? 0 "ping local, device bind"
+
+ # loopback addresses not reachable from device bind
+ # fails in a really weird way though because ipv4 special cases
+ # route lookups with oif set.
+ for a in ${NSA_LO_IP} 127.0.0.1
+ do
+ log_start
+ show_hint "Fails since address on loopback device is out of device scope"
+ run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+ log_test_addr ${a} $? 1 "ping local, device bind"
+ done
+
+ #
+ # ip rule blocks reachability to remote address
+ #
+ log_start
+ setup_cmd ip rule add pref 32765 from all lookup local
+ setup_cmd ip rule del pref 0 from all lookup local
+ setup_cmd ip rule add pref 50 to ${NSB_LO_IP} prohibit
+ setup_cmd ip rule add pref 51 from ${NSB_IP} prohibit
+
+ a=${NSB_LO_IP}
+ run_cmd ping -c1 -w1 ${a}
+ log_test_addr ${a} $? 2 "ping out, blocked by rule"
+
+ # NOTE: ipv4 actually allows the lookup to fail and yet still create
+ # a viable rtable if the oif (e.g., bind to device) is set, so this
+ # case succeeds despite the rule
+ # run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+
+ a=${NSA_LO_IP}
+ log_start
+ show_hint "Response generates ICMP (or arp request is ignored) due to ip rule"
+ run_cmd_nsb ping -c1 -w1 ${a}
+ log_test_addr ${a} $? 1 "ping in, blocked by rule"
+
+ [ "$VERBOSE" = "1" ] && echo
+ setup_cmd ip rule del pref 32765 from all lookup local
+ setup_cmd ip rule add pref 0 from all lookup local
+ setup_cmd ip rule del pref 50 to ${NSB_LO_IP} prohibit
+ setup_cmd ip rule del pref 51 from ${NSB_IP} prohibit
+
+ #
+ # route blocks reachability to remote address
+ #
+ log_start
+ setup_cmd ip route replace unreachable ${NSB_LO_IP}
+ setup_cmd ip route replace unreachable ${NSB_IP}
+
+ a=${NSB_LO_IP}
+ run_cmd ping -c1 -w1 ${a}
+ log_test_addr ${a} $? 2 "ping out, blocked by route"
+
+ # NOTE: ipv4 actually allows the lookup to fail and yet still create
+ # a viable rtable if the oif (e.g., bind to device) is set, so this
+ # case succeeds despite not having a route for the address
+ # run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+
+ a=${NSA_LO_IP}
+ log_start
+ show_hint "Response is dropped (or arp request is ignored) due to ip route"
+ run_cmd_nsb ping -c1 -w1 ${a}
+ log_test_addr ${a} $? 1 "ping in, blocked by route"
+
+ #
+ # remove 'remote' routes; fallback to default
+ #
+ log_start
+ setup_cmd ip ro del ${NSB_LO_IP}
+
+ a=${NSB_LO_IP}
+ run_cmd ping -c1 -w1 ${a}
+ log_test_addr ${a} $? 2 "ping out, unreachable default route"
+
+ # NOTE: ipv4 actually allows the lookup to fail and yet still create
+ # a viable rtable if the oif (e.g., bind to device) is set, so this
+ # case succeeds despite not having a route for the address
+ # run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+}
+
+ipv4_ping_vrf()
+{
+ local a
+
+ # should default on; does not exist on older kernels
+ set_sysctl net.ipv4.raw_l3mdev_accept=1 2>/dev/null
+
+ #
+ # out
+ #
+ for a in ${NSB_IP} ${NSB_LO_IP}
+ do
+ log_start
+ run_cmd ping -c1 -w1 -I ${VRF} ${a}
+ log_test_addr ${a} $? 0 "ping out, VRF bind"
+
+ log_start
+ run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+ log_test_addr ${a} $? 0 "ping out, device bind"
+
+ log_start
+ run_cmd ip vrf exec ${VRF} ping -c1 -w1 -I ${NSA_IP} ${a}
+ log_test_addr ${a} $? 0 "ping out, vrf device + dev address bind"
+
+ log_start
+ run_cmd ip vrf exec ${VRF} ping -c1 -w1 -I ${VRF_IP} ${a}
+ log_test_addr ${a} $? 0 "ping out, vrf device + vrf address bind"
+ done
+
+ #
+ # in
+ #
+ for a in ${NSA_IP} ${VRF_IP}
+ do
+ log_start
+ run_cmd_nsb ping -c1 -w1 ${a}
+ log_test_addr ${a} $? 0 "ping in"
+ done
+
+ #
+ # local traffic, local address
+ #
+ for a in ${NSA_IP} ${VRF_IP} 127.0.0.1
+ do
+ log_start
+ show_hint "Source address should be ${a}"
+ run_cmd ping -c1 -w1 -I ${VRF} ${a}
+ log_test_addr ${a} $? 0 "ping local, VRF bind"
+ done
+
+ #
+ # local traffic, socket bound to device
+ #
+ # address on device
+ a=${NSA_IP}
+ log_start
+ run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+ log_test_addr ${a} $? 0 "ping local, device bind"
+
+ # vrf device is out of scope
+ for a in ${VRF_IP} 127.0.0.1
+ do
+ log_start
+ show_hint "Fails since address on vrf device is out of device scope"
+ run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+ log_test_addr ${a} $? 1 "ping local, device bind"
+ done
+
+ #
+ # ip rule blocks address
+ #
+ log_start
+ setup_cmd ip rule add pref 50 to ${NSB_LO_IP} prohibit
+ setup_cmd ip rule add pref 51 from ${NSB_IP} prohibit
+
+ a=${NSB_LO_IP}
+ run_cmd ping -c1 -w1 -I ${VRF} ${a}
+ log_test_addr ${a} $? 2 "ping out, vrf bind, blocked by rule"
+
+ log_start
+ run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+ log_test_addr ${a} $? 2 "ping out, device bind, blocked by rule"
+
+ a=${NSA_LO_IP}
+ log_start
+ show_hint "Response lost due to ip rule"
+ run_cmd_nsb ping -c1 -w1 ${a}
+ log_test_addr ${a} $? 1 "ping in, blocked by rule"
+
+ [ "$VERBOSE" = "1" ] && echo
+ setup_cmd ip rule del pref 50 to ${NSB_LO_IP} prohibit
+ setup_cmd ip rule del pref 51 from ${NSB_IP} prohibit
+
+ #
+ # remove 'remote' routes; fallback to default
+ #
+ log_start
+ setup_cmd ip ro del vrf ${VRF} ${NSB_LO_IP}
+
+ a=${NSB_LO_IP}
+ run_cmd ping -c1 -w1 -I ${VRF} ${a}
+ log_test_addr ${a} $? 2 "ping out, vrf bind, unreachable route"
+
+ log_start
+ run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+ log_test_addr ${a} $? 2 "ping out, device bind, unreachable route"
+
+ a=${NSA_LO_IP}
+ log_start
+ show_hint "Response lost by unreachable route"
+ run_cmd_nsb ping -c1 -w1 ${a}
+ log_test_addr ${a} $? 1 "ping in, unreachable route"
+}
+
+ipv4_ping()
+{
+ log_section "IPv4 ping"
+
+ log_subsection "No VRF"
+ setup
+ set_sysctl net.ipv4.raw_l3mdev_accept=0 2>/dev/null
+ ipv4_ping_novrf
+ setup
+ set_sysctl net.ipv4.raw_l3mdev_accept=1 2>/dev/null
+ ipv4_ping_novrf
+ setup
+ set_sysctl net.ipv4.ping_group_range='0 2147483647' 2>/dev/null
+ ipv4_ping_novrf
+
+ log_subsection "With VRF"
+ setup "yes"
+ ipv4_ping_vrf
+ setup "yes"
+ set_sysctl net.ipv4.ping_group_range='0 2147483647' 2>/dev/null
+ ipv4_ping_vrf
+}
+
+################################################################################
+# IPv4 TCP
+
+#
+# MD5 tests without VRF
+#
+ipv4_tcp_md5_novrf()
+{
+ #
+ # single address
+ #
+
+ # basic use case
+ log_start
+ run_cmd nettest -s -M ${MD5_PW} -r ${NSB_IP} &
+ sleep 1
+ run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_PW}
+ log_test $? 0 "MD5: Single address config"
+
+ # client sends MD5, server not configured
+ log_start
+ show_hint "Should timeout due to MD5 mismatch"
+ run_cmd nettest -s &
+ sleep 1
+ run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_PW}
+ log_test $? 2 "MD5: Server no config, client uses password"
+
+ # wrong password
+ log_start
+ show_hint "Should timeout since client uses wrong password"
+ run_cmd nettest -s -M ${MD5_PW} -r ${NSB_IP} &
+ sleep 1
+ run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_WRONG_PW}
+ log_test $? 2 "MD5: Client uses wrong password"
+
+ # client from different address
+ log_start
+ show_hint "Should timeout due to MD5 mismatch"
+ run_cmd nettest -s -M ${MD5_PW} -r ${NSB_LO_IP} &
+ sleep 1
+ run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_PW}
+ log_test $? 2 "MD5: Client address does not match address configured with password"
+
+ #
+ # MD5 extension - prefix length
+ #
+
+ # client in prefix
+ log_start
+ run_cmd nettest -s -M ${MD5_PW} -m ${NS_NET} &
+ sleep 1
+ run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_PW}
+ log_test $? 0 "MD5: Prefix config"
+
+ # client in prefix, wrong password
+ log_start
+ show_hint "Should timeout since client uses wrong password"
+ run_cmd nettest -s -M ${MD5_PW} -m ${NS_NET} &
+ sleep 1
+ run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_WRONG_PW}
+ log_test $? 2 "MD5: Prefix config, client uses wrong password"
+
+ # client outside of prefix
+ log_start
+ show_hint "Should timeout due to MD5 mismatch"
+ run_cmd nettest -s -M ${MD5_PW} -m ${NS_NET} &
+ sleep 1
+ run_cmd_nsb nettest -l ${NSB_LO_IP} -r ${NSA_IP} -M ${MD5_PW}
+ log_test $? 2 "MD5: Prefix config, client address not in configured prefix"
+}
+
+#
+# MD5 tests with VRF
+#
+ipv4_tcp_md5()
+{
+ #
+ # single address
+ #
+
+ # basic use case
+ log_start
+ run_cmd nettest -s -d ${VRF} -M ${MD5_PW} -r ${NSB_IP} &
+ sleep 1
+ run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_PW}
+ log_test $? 0 "MD5: VRF: Single address config"
+
+ # client sends MD5, server not configured
+ log_start
+ show_hint "Should timeout since server does not have MD5 auth"
+ run_cmd nettest -s -d ${VRF} &
+ sleep 1
+ run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_PW}
+ log_test $? 2 "MD5: VRF: Server no config, client uses password"
+
+ # wrong password
+ log_start
+ show_hint "Should timeout since client uses wrong password"
+ run_cmd nettest -s -d ${VRF} -M ${MD5_PW} -r ${NSB_IP} &
+ sleep 1
+ run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_WRONG_PW}
+ log_test $? 2 "MD5: VRF: Client uses wrong password"
+
+ # client from different address
+ log_start
+ show_hint "Should timeout since server config differs from client"
+ run_cmd nettest -s -d ${VRF} -M ${MD5_PW} -r ${NSB_LO_IP} &
+ sleep 1
+ run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_PW}
+ log_test $? 2 "MD5: VRF: Client address does not match address configured with password"
+
+ #
+ # MD5 extension - prefix length
+ #
+
+ # client in prefix
+ log_start
+ run_cmd nettest -s -d ${VRF} -M ${MD5_PW} -m ${NS_NET} &
+ sleep 1
+ run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_PW}
+ log_test $? 0 "MD5: VRF: Prefix config"
+
+ # client in prefix, wrong password
+ log_start
+ show_hint "Should timeout since client uses wrong password"
+ run_cmd nettest -s -d ${VRF} -M ${MD5_PW} -m ${NS_NET} &
+ sleep 1
+ run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_WRONG_PW}
+ log_test $? 2 "MD5: VRF: Prefix config, client uses wrong password"
+
+ # client outside of prefix
+ log_start
+ show_hint "Should timeout since client address is outside of prefix"
+ run_cmd nettest -s -d ${VRF} -M ${MD5_PW} -m ${NS_NET} &
+ sleep 1
+ run_cmd_nsb nettest -l ${NSB_LO_IP} -r ${NSA_IP} -M ${MD5_PW}
+ log_test $? 2 "MD5: VRF: Prefix config, client address not in configured prefix"
+
+ #
+ # duplicate config between default VRF and a VRF
+ #
+
+ log_start
+ run_cmd nettest -s -d ${VRF} -M ${MD5_PW} -r ${NSB_IP} &
+ run_cmd nettest -s -M ${MD5_WRONG_PW} -r ${NSB_IP} &
+ sleep 1
+ run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_PW}
+ log_test $? 0 "MD5: VRF: Single address config in default VRF and VRF, conn in VRF"
+
+ log_start
+ run_cmd nettest -s -d ${VRF} -M ${MD5_PW} -r ${NSB_IP} &
+ run_cmd nettest -s -M ${MD5_WRONG_PW} -r ${NSB_IP} &
+ sleep 1
+ run_cmd_nsc nettest -r ${NSA_IP} -M ${MD5_WRONG_PW}
+ log_test $? 0 "MD5: VRF: Single address config in default VRF and VRF, conn in default VRF"
+
+ log_start
+ show_hint "Should timeout since client in default VRF uses VRF password"
+ run_cmd nettest -s -d ${VRF} -M ${MD5_PW} -r ${NSB_IP} &
+ run_cmd nettest -s -M ${MD5_WRONG_PW} -r ${NSB_IP} &
+ sleep 1
+ run_cmd_nsc nettest -r ${NSA_IP} -M ${MD5_PW}
+ log_test $? 2 "MD5: VRF: Single address config in default VRF and VRF, conn in default VRF with VRF pw"
+
+ log_start
+ show_hint "Should timeout since client in VRF uses default VRF password"
+ run_cmd nettest -s -d ${VRF} -M ${MD5_PW} -r ${NSB_IP} &
+ run_cmd nettest -s -M ${MD5_WRONG_PW} -r ${NSB_IP} &
+ sleep 1
+ run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_WRONG_PW}
+ log_test $? 2 "MD5: VRF: Single address config in default VRF and VRF, conn in VRF with default VRF pw"
+
+ log_start
+ run_cmd nettest -s -d ${VRF} -M ${MD5_PW} -m ${NS_NET} &
+ run_cmd nettest -s -M ${MD5_WRONG_PW} -m ${NS_NET} &
+ sleep 1
+ run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_PW}
+ log_test $? 0 "MD5: VRF: Prefix config in default VRF and VRF, conn in VRF"
+
+ log_start
+ run_cmd nettest -s -d ${VRF} -M ${MD5_PW} -m ${NS_NET} &
+ run_cmd nettest -s -M ${MD5_WRONG_PW} -m ${NS_NET} &
+ sleep 1
+ run_cmd_nsc nettest -r ${NSA_IP} -M ${MD5_WRONG_PW}
+ log_test $? 0 "MD5: VRF: Prefix config in default VRF and VRF, conn in default VRF"
+
+ log_start
+ show_hint "Should timeout since client in default VRF uses VRF password"
+ run_cmd nettest -s -d ${VRF} -M ${MD5_PW} -m ${NS_NET} &
+ run_cmd nettest -s -M ${MD5_WRONG_PW} -m ${NS_NET} &
+ sleep 1
+ run_cmd_nsc nettest -r ${NSA_IP} -M ${MD5_PW}
+ log_test $? 2 "MD5: VRF: Prefix config in default VRF and VRF, conn in default VRF with VRF pw"
+
+ log_start
+ show_hint "Should timeout since client in VRF uses default VRF password"
+ run_cmd nettest -s -d ${VRF} -M ${MD5_PW} -m ${NS_NET} &
+ run_cmd nettest -s -M ${MD5_WRONG_PW} -m ${NS_NET} &
+ sleep 1
+ run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_WRONG_PW}
+ log_test $? 2 "MD5: VRF: Prefix config in default VRF and VRF, conn in VRF with default VRF pw"
+
+ #
+ # negative tests
+ #
+ log_start
+ run_cmd nettest -s -d ${NSA_DEV} -M ${MD5_PW} -r ${NSB_IP}
+ log_test $? 1 "MD5: VRF: Device must be a VRF - single address"
+
+ log_start
+ run_cmd nettest -s -d ${NSA_DEV} -M ${MD5_PW} -m ${NS_NET}
+ log_test $? 1 "MD5: VRF: Device must be a VRF - prefix"
+
+}
+
+ipv4_tcp_novrf()
+{
+ local a
+
+ #
+ # server tests
+ #
+ for a in ${NSA_IP} ${NSA_LO_IP}
+ do
+ log_start
+ run_cmd nettest -s &
+ sleep 1
+ run_cmd_nsb nettest -r ${a}
+ log_test_addr ${a} $? 0 "Global server"
+ done
+
+ a=${NSA_IP}
+ log_start
+ run_cmd nettest -s -d ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -r ${a}
+ log_test_addr ${a} $? 0 "Device server"
+
+ # verify TCP reset sent and received
+ for a in ${NSA_IP} ${NSA_LO_IP}
+ do
+ log_start
+ show_hint "Should fail 'Connection refused' since there is no server"
+ run_cmd_nsb nettest -r ${a}
+ log_test_addr ${a} $? 1 "No server"
+ done
+
+ #
+ # client
+ #
+ for a in ${NSB_IP} ${NSB_LO_IP}
+ do
+ log_start
+ run_cmd_nsb nettest -s &
+ sleep 1
+ run_cmd nettest -r ${a} -0 ${NSA_IP}
+ log_test_addr ${a} $? 0 "Client"
+
+ log_start
+ run_cmd_nsb nettest -s &
+ sleep 1
+ run_cmd nettest -r ${a} -d ${NSA_DEV}
+ log_test_addr ${a} $? 0 "Client, device bind"
+
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd nettest -r ${a}
+ log_test_addr ${a} $? 1 "No server, unbound client"
+
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd nettest -r ${a} -d ${NSA_DEV}
+ log_test_addr ${a} $? 1 "No server, device client"
+ done
+
+ #
+ # local address tests
+ #
+ for a in ${NSA_IP} ${NSA_LO_IP} 127.0.0.1
+ do
+ log_start
+ run_cmd nettest -s &
+ sleep 1
+ run_cmd nettest -r ${a} -0 ${a} -1 ${a}
+ log_test_addr ${a} $? 0 "Global server, local connection"
+ done
+
+ a=${NSA_IP}
+ log_start
+ run_cmd nettest -s -d ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -r ${a} -0 ${a}
+ log_test_addr ${a} $? 0 "Device server, unbound client, local connection"
+
+ for a in ${NSA_LO_IP} 127.0.0.1
+ do
+ log_start
+ show_hint "Should fail 'Connection refused' since addresses on loopback are out of device scope"
+ run_cmd nettest -s -d ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -r ${a}
+ log_test_addr ${a} $? 1 "Device server, unbound client, local connection"
+ done
+
+ a=${NSA_IP}
+ log_start
+ run_cmd nettest -s &
+ sleep 1
+ run_cmd nettest -r ${a} -0 ${a} -d ${NSA_DEV}
+ log_test_addr ${a} $? 0 "Global server, device client, local connection"
+
+ for a in ${NSA_LO_IP} 127.0.0.1
+ do
+ log_start
+ show_hint "Should fail 'No route to host' since addresses on loopback are out of device scope"
+ run_cmd nettest -s &
+ sleep 1
+ run_cmd nettest -r ${a} -d ${NSA_DEV}
+ log_test_addr ${a} $? 1 "Global server, device client, local connection"
+ done
+
+ a=${NSA_IP}
+ log_start
+ run_cmd nettest -s -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -d ${NSA_DEV} -r ${a} -0 ${a}
+ log_test_addr ${a} $? 0 "Device server, device client, local connection"
+
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd nettest -d ${NSA_DEV} -r ${a}
+ log_test_addr ${a} $? 1 "No server, device client, local conn"
+
+ [ "$fips_enabled" = "1" ] || ipv4_tcp_md5_novrf
+}
+
+ipv4_tcp_vrf()
+{
+ local a
+
+ # disable global server
+ log_subsection "Global server disabled"
+
+ set_sysctl net.ipv4.tcp_l3mdev_accept=0
+
+ #
+ # server tests
+ #
+ for a in ${NSA_IP} ${VRF_IP}
+ do
+ log_start
+ show_hint "Should fail 'Connection refused' since global server with VRF is disabled"
+ run_cmd nettest -s &
+ sleep 1
+ run_cmd_nsb nettest -r ${a}
+ log_test_addr ${a} $? 1 "Global server"
+
+ log_start
+ run_cmd nettest -s -d ${VRF} -2 ${VRF} &
+ sleep 1
+ run_cmd_nsb nettest -r ${a}
+ log_test_addr ${a} $? 0 "VRF server"
+
+ log_start
+ run_cmd nettest -s -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -r ${a}
+ log_test_addr ${a} $? 0 "Device server"
+
+ # verify TCP reset received
+ log_start
+ show_hint "Should fail 'Connection refused' since there is no server"
+ run_cmd_nsb nettest -r ${a}
+ log_test_addr ${a} $? 1 "No server"
+ done
+
+ # local address tests
+ # (${VRF_IP} and 127.0.0.1 both timeout)
+ a=${NSA_IP}
+ log_start
+ show_hint "Should fail 'Connection refused' since global server with VRF is disabled"
+ run_cmd nettest -s &
+ sleep 1
+ run_cmd nettest -r ${a} -d ${NSA_DEV}
+ log_test_addr ${a} $? 1 "Global server, local connection"
+
+ # run MD5 tests
+ if [ "$fips_enabled" = "0" ]; then
+ setup_vrf_dup
+ ipv4_tcp_md5
+ cleanup_vrf_dup
+ fi
+
+ #
+ # enable VRF global server
+ #
+ log_subsection "VRF Global server enabled"
+ set_sysctl net.ipv4.tcp_l3mdev_accept=1
+
+ for a in ${NSA_IP} ${VRF_IP}
+ do
+ log_start
+ show_hint "client socket should be bound to VRF"
+ run_cmd nettest -s -2 ${VRF} &
+ sleep 1
+ run_cmd_nsb nettest -r ${a}
+ log_test_addr ${a} $? 0 "Global server"
+
+ log_start
+ show_hint "client socket should be bound to VRF"
+ run_cmd nettest -s -d ${VRF} -2 ${VRF} &
+ sleep 1
+ run_cmd_nsb nettest -r ${a}
+ log_test_addr ${a} $? 0 "VRF server"
+
+ # verify TCP reset received
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd_nsb nettest -r ${a}
+ log_test_addr ${a} $? 1 "No server"
+ done
+
+ a=${NSA_IP}
+ log_start
+ show_hint "client socket should be bound to device"
+ run_cmd nettest -s -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -r ${a}
+ log_test_addr ${a} $? 0 "Device server"
+
+ # local address tests
+ for a in ${NSA_IP} ${VRF_IP}
+ do
+ log_start
+ show_hint "Should fail 'Connection refused' since client is not bound to VRF"
+ run_cmd nettest -s -d ${VRF} &
+ sleep 1
+ run_cmd nettest -r ${a}
+ log_test_addr ${a} $? 1 "Global server, local connection"
+ done
+
+ #
+ # client
+ #
+ for a in ${NSB_IP} ${NSB_LO_IP}
+ do
+ log_start
+ run_cmd_nsb nettest -s &
+ sleep 1
+ run_cmd nettest -r ${a} -d ${VRF}
+ log_test_addr ${a} $? 0 "Client, VRF bind"
+
+ log_start
+ run_cmd_nsb nettest -s &
+ sleep 1
+ run_cmd nettest -r ${a} -d ${NSA_DEV}
+ log_test_addr ${a} $? 0 "Client, device bind"
+
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd nettest -r ${a} -d ${VRF}
+ log_test_addr ${a} $? 1 "No server, VRF client"
+
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd nettest -r ${a} -d ${NSA_DEV}
+ log_test_addr ${a} $? 1 "No server, device client"
+ done
+
+ for a in ${NSA_IP} ${VRF_IP} 127.0.0.1
+ do
+ log_start
+ run_cmd nettest -s -d ${VRF} -2 ${VRF} &
+ sleep 1
+ run_cmd nettest -r ${a} -d ${VRF} -0 ${a}
+ log_test_addr ${a} $? 0 "VRF server, VRF client, local connection"
+ done
+
+ a=${NSA_IP}
+ log_start
+ run_cmd nettest -s -d ${VRF} -2 ${VRF} &
+ sleep 1
+ run_cmd nettest -r ${a} -d ${NSA_DEV} -0 ${a}
+ log_test_addr ${a} $? 0 "VRF server, device client, local connection"
+
+ log_start
+ show_hint "Should fail 'No route to host' since client is out of VRF scope"
+ run_cmd nettest -s -d ${VRF} &
+ sleep 1
+ run_cmd nettest -r ${a}
+ log_test_addr ${a} $? 1 "VRF server, unbound client, local connection"
+
+ log_start
+ run_cmd nettest -s -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -r ${a} -d ${VRF} -0 ${a}
+ log_test_addr ${a} $? 0 "Device server, VRF client, local connection"
+
+ log_start
+ run_cmd nettest -s -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -r ${a} -d ${NSA_DEV} -0 ${a}
+ log_test_addr ${a} $? 0 "Device server, device client, local connection"
+}
+
+ipv4_tcp()
+{
+ log_section "IPv4/TCP"
+ log_subsection "No VRF"
+ setup
+
+ # tcp_l3mdev_accept should have no affect without VRF;
+ # run tests with it enabled and disabled to verify
+ log_subsection "tcp_l3mdev_accept disabled"
+ set_sysctl net.ipv4.tcp_l3mdev_accept=0
+ ipv4_tcp_novrf
+ log_subsection "tcp_l3mdev_accept enabled"
+ set_sysctl net.ipv4.tcp_l3mdev_accept=1
+ ipv4_tcp_novrf
+
+ log_subsection "With VRF"
+ setup "yes"
+ ipv4_tcp_vrf
+}
+
+################################################################################
+# IPv4 UDP
+
+ipv4_udp_novrf()
+{
+ local a
+
+ #
+ # server tests
+ #
+ for a in ${NSA_IP} ${NSA_LO_IP}
+ do
+ log_start
+ run_cmd nettest -D -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -D -r ${a}
+ log_test_addr ${a} $? 0 "Global server"
+
+ log_start
+ show_hint "Should fail 'Connection refused' since there is no server"
+ run_cmd_nsb nettest -D -r ${a}
+ log_test_addr ${a} $? 1 "No server"
+ done
+
+ a=${NSA_IP}
+ log_start
+ run_cmd nettest -D -d ${NSA_DEV} -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -D -r ${a}
+ log_test_addr ${a} $? 0 "Device server"
+
+ #
+ # client
+ #
+ for a in ${NSB_IP} ${NSB_LO_IP}
+ do
+ log_start
+ run_cmd_nsb nettest -D -s &
+ sleep 1
+ run_cmd nettest -D -r ${a} -0 ${NSA_IP}
+ log_test_addr ${a} $? 0 "Client"
+
+ log_start
+ run_cmd_nsb nettest -D -s &
+ sleep 1
+ run_cmd nettest -D -r ${a} -d ${NSA_DEV} -0 ${NSA_IP}
+ log_test_addr ${a} $? 0 "Client, device bind"
+
+ log_start
+ run_cmd_nsb nettest -D -s &
+ sleep 1
+ run_cmd nettest -D -r ${a} -d ${NSA_DEV} -C -0 ${NSA_IP}
+ log_test_addr ${a} $? 0 "Client, device send via cmsg"
+
+ log_start
+ run_cmd_nsb nettest -D -s &
+ sleep 1
+ run_cmd nettest -D -r ${a} -d ${NSA_DEV} -S -0 ${NSA_IP}
+ log_test_addr ${a} $? 0 "Client, device bind via IP_UNICAST_IF"
+
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd nettest -D -r ${a}
+ log_test_addr ${a} $? 1 "No server, unbound client"
+
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd nettest -D -r ${a} -d ${NSA_DEV}
+ log_test_addr ${a} $? 1 "No server, device client"
+ done
+
+ #
+ # local address tests
+ #
+ for a in ${NSA_IP} ${NSA_LO_IP} 127.0.0.1
+ do
+ log_start
+ run_cmd nettest -D -s &
+ sleep 1
+ run_cmd nettest -D -r ${a} -0 ${a} -1 ${a}
+ log_test_addr ${a} $? 0 "Global server, local connection"
+ done
+
+ a=${NSA_IP}
+ log_start
+ run_cmd nettest -s -D -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -D -r ${a}
+ log_test_addr ${a} $? 0 "Device server, unbound client, local connection"
+
+ for a in ${NSA_LO_IP} 127.0.0.1
+ do
+ log_start
+ show_hint "Should fail 'Connection refused' since address is out of device scope"
+ run_cmd nettest -s -D -d ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -D -r ${a}
+ log_test_addr ${a} $? 1 "Device server, unbound client, local connection"
+ done
+
+ a=${NSA_IP}
+ log_start
+ run_cmd nettest -s -D &
+ sleep 1
+ run_cmd nettest -D -d ${NSA_DEV} -r ${a}
+ log_test_addr ${a} $? 0 "Global server, device client, local connection"
+
+ log_start
+ run_cmd nettest -s -D &
+ sleep 1
+ run_cmd nettest -D -d ${NSA_DEV} -C -r ${a}
+ log_test_addr ${a} $? 0 "Global server, device send via cmsg, local connection"
+
+ log_start
+ run_cmd nettest -s -D &
+ sleep 1
+ run_cmd nettest -D -d ${NSA_DEV} -S -r ${a}
+ log_test_addr ${a} $? 0 "Global server, device client via IP_UNICAST_IF, local connection"
+
+ # IPv4 with device bind has really weird behavior - it overrides the
+ # fib lookup, generates an rtable and tries to send the packet. This
+ # causes failures for local traffic at different places
+ for a in ${NSA_LO_IP} 127.0.0.1
+ do
+ log_start
+ show_hint "Should fail since addresses on loopback are out of device scope"
+ run_cmd nettest -D -s &
+ sleep 1
+ run_cmd nettest -D -r ${a} -d ${NSA_DEV}
+ log_test_addr ${a} $? 2 "Global server, device client, local connection"
+
+ log_start
+ show_hint "Should fail since addresses on loopback are out of device scope"
+ run_cmd nettest -D -s &
+ sleep 1
+ run_cmd nettest -D -r ${a} -d ${NSA_DEV} -C
+ log_test_addr ${a} $? 1 "Global server, device send via cmsg, local connection"
+
+ log_start
+ show_hint "Should fail since addresses on loopback are out of device scope"
+ run_cmd nettest -D -s &
+ sleep 1
+ run_cmd nettest -D -r ${a} -d ${NSA_DEV} -S
+ log_test_addr ${a} $? 1 "Global server, device client via IP_UNICAST_IF, local connection"
+ done
+
+ a=${NSA_IP}
+ log_start
+ run_cmd nettest -D -s -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -D -d ${NSA_DEV} -r ${a} -0 ${a}
+ log_test_addr ${a} $? 0 "Device server, device client, local conn"
+
+ log_start
+ run_cmd nettest -D -d ${NSA_DEV} -r ${a}
+ log_test_addr ${a} $? 2 "No server, device client, local conn"
+}
+
+ipv4_udp_vrf()
+{
+ local a
+
+ # disable global server
+ log_subsection "Global server disabled"
+ set_sysctl net.ipv4.udp_l3mdev_accept=0
+
+ #
+ # server tests
+ #
+ for a in ${NSA_IP} ${VRF_IP}
+ do
+ log_start
+ show_hint "Fails because ingress is in a VRF and global server is disabled"
+ run_cmd nettest -D -s &
+ sleep 1
+ run_cmd_nsb nettest -D -r ${a}
+ log_test_addr ${a} $? 1 "Global server"
+
+ log_start
+ run_cmd nettest -D -d ${VRF} -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -D -r ${a}
+ log_test_addr ${a} $? 0 "VRF server"
+
+ log_start
+ run_cmd nettest -D -d ${NSA_DEV} -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -D -r ${a}
+ log_test_addr ${a} $? 0 "Enslaved device server"
+
+ log_start
+ show_hint "Should fail 'Connection refused' since there is no server"
+ run_cmd_nsb nettest -D -r ${a}
+ log_test_addr ${a} $? 1 "No server"
+
+ log_start
+ show_hint "Should fail 'Connection refused' since global server is out of scope"
+ run_cmd nettest -D -s &
+ sleep 1
+ run_cmd nettest -D -d ${VRF} -r ${a}
+ log_test_addr ${a} $? 1 "Global server, VRF client, local connection"
+ done
+
+ a=${NSA_IP}
+ log_start
+ run_cmd nettest -s -D -d ${VRF} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -D -d ${VRF} -r ${a}
+ log_test_addr ${a} $? 0 "VRF server, VRF client, local conn"
+
+ log_start
+ run_cmd nettest -s -D -d ${VRF} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -D -d ${NSA_DEV} -r ${a}
+ log_test_addr ${a} $? 0 "VRF server, enslaved device client, local connection"
+
+ a=${NSA_IP}
+ log_start
+ run_cmd nettest -s -D -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -D -d ${VRF} -r ${a}
+ log_test_addr ${a} $? 0 "Enslaved device server, VRF client, local conn"
+
+ log_start
+ run_cmd nettest -s -D -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -D -d ${NSA_DEV} -r ${a}
+ log_test_addr ${a} $? 0 "Enslaved device server, device client, local conn"
+
+ # enable global server
+ log_subsection "Global server enabled"
+ set_sysctl net.ipv4.udp_l3mdev_accept=1
+
+ #
+ # server tests
+ #
+ for a in ${NSA_IP} ${VRF_IP}
+ do
+ log_start
+ run_cmd nettest -D -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -D -r ${a}
+ log_test_addr ${a} $? 0 "Global server"
+
+ log_start
+ run_cmd nettest -D -d ${VRF} -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -D -r ${a}
+ log_test_addr ${a} $? 0 "VRF server"
+
+ log_start
+ run_cmd nettest -D -d ${NSA_DEV} -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -D -r ${a}
+ log_test_addr ${a} $? 0 "Enslaved device server"
+
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd_nsb nettest -D -r ${a}
+ log_test_addr ${a} $? 1 "No server"
+ done
+
+ #
+ # client tests
+ #
+ log_start
+ run_cmd_nsb nettest -D -s &
+ sleep 1
+ run_cmd nettest -d ${VRF} -D -r ${NSB_IP} -1 ${NSA_IP}
+ log_test $? 0 "VRF client"
+
+ log_start
+ run_cmd_nsb nettest -D -s &
+ sleep 1
+ run_cmd nettest -d ${NSA_DEV} -D -r ${NSB_IP} -1 ${NSA_IP}
+ log_test $? 0 "Enslaved device client"
+
+ # negative test - should fail
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd nettest -D -d ${VRF} -r ${NSB_IP}
+ log_test $? 1 "No server, VRF client"
+
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd nettest -D -d ${NSA_DEV} -r ${NSB_IP}
+ log_test $? 1 "No server, enslaved device client"
+
+ #
+ # local address tests
+ #
+ a=${NSA_IP}
+ log_start
+ run_cmd nettest -D -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -D -d ${VRF} -r ${a}
+ log_test_addr ${a} $? 0 "Global server, VRF client, local conn"
+
+ log_start
+ run_cmd nettest -s -D -d ${VRF} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -D -d ${VRF} -r ${a}
+ log_test_addr ${a} $? 0 "VRF server, VRF client, local conn"
+
+ log_start
+ run_cmd nettest -s -D -d ${VRF} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -D -d ${NSA_DEV} -r ${a}
+ log_test_addr ${a} $? 0 "VRF server, device client, local conn"
+
+ log_start
+ run_cmd nettest -s -D -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -D -d ${VRF} -r ${a}
+ log_test_addr ${a} $? 0 "Enslaved device server, VRF client, local conn"
+
+ log_start
+ run_cmd nettest -s -D -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -D -d ${NSA_DEV} -r ${a}
+ log_test_addr ${a} $? 0 "Enslaved device server, device client, local conn"
+
+ for a in ${VRF_IP} 127.0.0.1
+ do
+ log_start
+ run_cmd nettest -D -s -2 ${VRF} &
+ sleep 1
+ run_cmd nettest -D -d ${VRF} -r ${a}
+ log_test_addr ${a} $? 0 "Global server, VRF client, local conn"
+ done
+
+ for a in ${VRF_IP} 127.0.0.1
+ do
+ log_start
+ run_cmd nettest -s -D -d ${VRF} -2 ${VRF} &
+ sleep 1
+ run_cmd nettest -D -d ${VRF} -r ${a}
+ log_test_addr ${a} $? 0 "VRF server, VRF client, local conn"
+ done
+
+ # negative test - should fail
+ # verifies ECONNREFUSED
+ for a in ${NSA_IP} ${VRF_IP} 127.0.0.1
+ do
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd nettest -D -d ${VRF} -r ${a}
+ log_test_addr ${a} $? 1 "No server, VRF client, local conn"
+ done
+}
+
+ipv4_udp()
+{
+ log_section "IPv4/UDP"
+ log_subsection "No VRF"
+
+ setup
+
+ # udp_l3mdev_accept should have no affect without VRF;
+ # run tests with it enabled and disabled to verify
+ log_subsection "udp_l3mdev_accept disabled"
+ set_sysctl net.ipv4.udp_l3mdev_accept=0
+ ipv4_udp_novrf
+ log_subsection "udp_l3mdev_accept enabled"
+ set_sysctl net.ipv4.udp_l3mdev_accept=1
+ ipv4_udp_novrf
+
+ log_subsection "With VRF"
+ setup "yes"
+ ipv4_udp_vrf
+}
+
+################################################################################
+# IPv4 address bind
+#
+# verifies ability or inability to bind to an address / device
+
+ipv4_addr_bind_novrf()
+{
+ #
+ # raw socket
+ #
+ for a in ${NSA_IP} ${NSA_LO_IP}
+ do
+ log_start
+ run_cmd nettest -s -R -P icmp -l ${a} -b
+ log_test_addr ${a} $? 0 "Raw socket bind to local address"
+
+ log_start
+ run_cmd nettest -s -R -P icmp -l ${a} -d ${NSA_DEV} -b
+ log_test_addr ${a} $? 0 "Raw socket bind to local address after device bind"
+ done
+
+ #
+ # tcp sockets
+ #
+ a=${NSA_IP}
+ log_start
+ run_cmd nettest -l ${a} -r ${NSB_IP} -t1 -b
+ log_test_addr ${a} $? 0 "TCP socket bind to local address"
+
+ log_start
+ run_cmd nettest -l ${a} -r ${NSB_IP} -d ${NSA_DEV} -t1 -b
+ log_test_addr ${a} $? 0 "TCP socket bind to local address after device bind"
+
+ # Sadly, the kernel allows binding a socket to a device and then
+ # binding to an address not on the device. The only restriction
+ # is that the address is valid in the L3 domain. So this test
+ # passes when it really should not
+ #a=${NSA_LO_IP}
+ #log_start
+ #show_hint "Should fail with 'Cannot assign requested address'"
+ #run_cmd nettest -s -l ${a} -d ${NSA_DEV} -t1 -b
+ #log_test_addr ${a} $? 1 "TCP socket bind to out of scope local address"
+}
+
+ipv4_addr_bind_vrf()
+{
+ #
+ # raw socket
+ #
+ for a in ${NSA_IP} ${VRF_IP}
+ do
+ log_start
+ show_hint "Socket not bound to VRF, but address is in VRF"
+ run_cmd nettest -s -R -P icmp -l ${a} -b
+ log_test_addr ${a} $? 1 "Raw socket bind to local address"
+
+ log_start
+ run_cmd nettest -s -R -P icmp -l ${a} -d ${NSA_DEV} -b
+ log_test_addr ${a} $? 0 "Raw socket bind to local address after device bind"
+ log_start
+ run_cmd nettest -s -R -P icmp -l ${a} -d ${VRF} -b
+ log_test_addr ${a} $? 0 "Raw socket bind to local address after VRF bind"
+ done
+
+ a=${NSA_LO_IP}
+ log_start
+ show_hint "Address on loopback is out of VRF scope"
+ run_cmd nettest -s -R -P icmp -l ${a} -d ${VRF} -b
+ log_test_addr ${a} $? 1 "Raw socket bind to out of scope address after VRF bind"
+
+ #
+ # tcp sockets
+ #
+ for a in ${NSA_IP} ${VRF_IP}
+ do
+ log_start
+ run_cmd nettest -s -l ${a} -d ${VRF} -t1 -b
+ log_test_addr ${a} $? 0 "TCP socket bind to local address"
+
+ log_start
+ run_cmd nettest -s -l ${a} -d ${NSA_DEV} -t1 -b
+ log_test_addr ${a} $? 0 "TCP socket bind to local address after device bind"
+ done
+
+ a=${NSA_LO_IP}
+ log_start
+ show_hint "Address on loopback out of scope for VRF"
+ run_cmd nettest -s -l ${a} -d ${VRF} -t1 -b
+ log_test_addr ${a} $? 1 "TCP socket bind to invalid local address for VRF"
+
+ log_start
+ show_hint "Address on loopback out of scope for device in VRF"
+ run_cmd nettest -s -l ${a} -d ${NSA_DEV} -t1 -b
+ log_test_addr ${a} $? 1 "TCP socket bind to invalid local address for device bind"
+}
+
+ipv4_addr_bind()
+{
+ log_section "IPv4 address binds"
+
+ log_subsection "No VRF"
+ setup
+ ipv4_addr_bind_novrf
+
+ log_subsection "With VRF"
+ setup "yes"
+ ipv4_addr_bind_vrf
+}
+
+################################################################################
+# IPv4 runtime tests
+
+ipv4_rt()
+{
+ local desc="$1"
+ local varg="$2"
+ local with_vrf="yes"
+ local a
+
+ #
+ # server tests
+ #
+ for a in ${NSA_IP} ${VRF_IP}
+ do
+ log_start
+ run_cmd nettest ${varg} -s &
+ sleep 1
+ run_cmd_nsb nettest ${varg} -r ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "${desc}, global server"
+
+ setup ${with_vrf}
+ done
+
+ for a in ${NSA_IP} ${VRF_IP}
+ do
+ log_start
+ run_cmd nettest ${varg} -s -d ${VRF} &
+ sleep 1
+ run_cmd_nsb nettest ${varg} -r ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "${desc}, VRF server"
+
+ setup ${with_vrf}
+ done
+
+ a=${NSA_IP}
+ log_start
+ run_cmd nettest ${varg} -s -d ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest ${varg} -r ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "${desc}, enslaved device server"
+
+ setup ${with_vrf}
+
+ #
+ # client test
+ #
+ log_start
+ run_cmd_nsb nettest ${varg} -s &
+ sleep 1
+ run_cmd nettest ${varg} -d ${VRF} -r ${NSB_IP} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "${desc}, VRF client"
+
+ setup ${with_vrf}
+
+ log_start
+ run_cmd_nsb nettest ${varg} -s &
+ sleep 1
+ run_cmd nettest ${varg} -d ${NSA_DEV} -r ${NSB_IP} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "${desc}, enslaved device client"
+
+ setup ${with_vrf}
+
+ #
+ # local address tests
+ #
+ for a in ${NSA_IP} ${VRF_IP}
+ do
+ log_start
+ run_cmd nettest ${varg} -s &
+ sleep 1
+ run_cmd nettest ${varg} -d ${VRF} -r ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "${desc}, global server, VRF client, local"
+
+ setup ${with_vrf}
+ done
+
+ for a in ${NSA_IP} ${VRF_IP}
+ do
+ log_start
+ run_cmd nettest ${varg} -d ${VRF} -s &
+ sleep 1
+ run_cmd nettest ${varg} -d ${VRF} -r ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "${desc}, VRF server and client, local"
+
+ setup ${with_vrf}
+ done
+
+ a=${NSA_IP}
+ log_start
+ run_cmd nettest ${varg} -s &
+ sleep 1
+ run_cmd nettest ${varg} -d ${NSA_DEV} -r ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "${desc}, global server, enslaved device client, local"
+
+ setup ${with_vrf}
+
+ log_start
+ run_cmd nettest ${varg} -d ${VRF} -s &
+ sleep 1
+ run_cmd nettest ${varg} -d ${NSA_DEV} -r ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "${desc}, VRF server, enslaved device client, local"
+
+ setup ${with_vrf}
+
+ log_start
+ run_cmd nettest ${varg} -d ${NSA_DEV} -s &
+ sleep 1
+ run_cmd nettest ${varg} -d ${NSA_DEV} -r ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "${desc}, enslaved device server and client, local"
+}
+
+ipv4_ping_rt()
+{
+ local with_vrf="yes"
+ local a
+
+ for a in ${NSA_IP} ${VRF_IP}
+ do
+ log_start
+ run_cmd_nsb ping -f ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "Device delete with active traffic - ping in"
+
+ setup ${with_vrf}
+ done
+
+ a=${NSB_IP}
+ log_start
+ run_cmd ping -f -I ${VRF} ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "Device delete with active traffic - ping out"
+}
+
+ipv4_runtime()
+{
+ log_section "Run time tests - ipv4"
+
+ setup "yes"
+ ipv4_ping_rt
+
+ setup "yes"
+ ipv4_rt "TCP active socket" "-n -1"
+
+ setup "yes"
+ ipv4_rt "TCP passive socket" "-i"
+}
+
+################################################################################
+# IPv6
+
+ipv6_ping_novrf()
+{
+ local a
+
+ # should not have an impact, but make a known state
+ set_sysctl net.ipv4.raw_l3mdev_accept=0 2>/dev/null
+
+ #
+ # out
+ #
+ for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}%${NSA_DEV} ${MCAST}%${NSA_DEV}
+ do
+ log_start
+ run_cmd ${ping6} -c1 -w1 ${a}
+ log_test_addr ${a} $? 0 "ping out"
+ done
+
+ for a in ${NSB_IP6} ${NSB_LO_IP6}
+ do
+ log_start
+ run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+ log_test_addr ${a} $? 0 "ping out, device bind"
+
+ log_start
+ run_cmd ${ping6} -c1 -w1 -I ${NSA_LO_IP6} ${a}
+ log_test_addr ${a} $? 0 "ping out, loopback address bind"
+ done
+
+ #
+ # in
+ #
+ for a in ${NSA_IP6} ${NSA_LO_IP6} ${NSA_LINKIP6}%${NSB_DEV} ${MCAST}%${NSB_DEV}
+ do
+ log_start
+ run_cmd_nsb ${ping6} -c1 -w1 ${a}
+ log_test_addr ${a} $? 0 "ping in"
+ done
+
+ #
+ # local traffic, local address
+ #
+ for a in ${NSA_IP6} ${NSA_LO_IP6} ::1 ${NSA_LINKIP6}%${NSA_DEV} ${MCAST}%${NSA_DEV}
+ do
+ log_start
+ run_cmd ${ping6} -c1 -w1 ${a}
+ log_test_addr ${a} $? 0 "ping local, no bind"
+ done
+
+ for a in ${NSA_IP6} ${NSA_LINKIP6}%${NSA_DEV} ${MCAST}%${NSA_DEV}
+ do
+ log_start
+ run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+ log_test_addr ${a} $? 0 "ping local, device bind"
+ done
+
+ for a in ${NSA_LO_IP6} ::1
+ do
+ log_start
+ show_hint "Fails since address on loopback is out of device scope"
+ run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+ log_test_addr ${a} $? 2 "ping local, device bind"
+ done
+
+ #
+ # ip rule blocks address
+ #
+ log_start
+ setup_cmd ip -6 rule add pref 32765 from all lookup local
+ setup_cmd ip -6 rule del pref 0 from all lookup local
+ setup_cmd ip -6 rule add pref 50 to ${NSB_LO_IP6} prohibit
+ setup_cmd ip -6 rule add pref 51 from ${NSB_IP6} prohibit
+
+ a=${NSB_LO_IP6}
+ run_cmd ${ping6} -c1 -w1 ${a}
+ log_test_addr ${a} $? 2 "ping out, blocked by rule"
+
+ log_start
+ run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+ log_test_addr ${a} $? 2 "ping out, device bind, blocked by rule"
+
+ a=${NSA_LO_IP6}
+ log_start
+ show_hint "Response lost due to ip rule"
+ run_cmd_nsb ${ping6} -c1 -w1 ${a}
+ log_test_addr ${a} $? 1 "ping in, blocked by rule"
+
+ setup_cmd ip -6 rule add pref 0 from all lookup local
+ setup_cmd ip -6 rule del pref 32765 from all lookup local
+ setup_cmd ip -6 rule del pref 50 to ${NSB_LO_IP6} prohibit
+ setup_cmd ip -6 rule del pref 51 from ${NSB_IP6} prohibit
+
+ #
+ # route blocks reachability to remote address
+ #
+ log_start
+ setup_cmd ip -6 route del ${NSB_LO_IP6}
+ setup_cmd ip -6 route add unreachable ${NSB_LO_IP6} metric 10
+ setup_cmd ip -6 route add unreachable ${NSB_IP6} metric 10
+
+ a=${NSB_LO_IP6}
+ run_cmd ${ping6} -c1 -w1 ${a}
+ log_test_addr ${a} $? 2 "ping out, blocked by route"
+
+ log_start
+ run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+ log_test_addr ${a} $? 2 "ping out, device bind, blocked by route"
+
+ a=${NSA_LO_IP6}
+ log_start
+ show_hint "Response lost due to ip route"
+ run_cmd_nsb ${ping6} -c1 -w1 ${a}
+ log_test_addr ${a} $? 1 "ping in, blocked by route"
+
+
+ #
+ # remove 'remote' routes; fallback to default
+ #
+ log_start
+ setup_cmd ip -6 ro del unreachable ${NSB_LO_IP6}
+ setup_cmd ip -6 ro del unreachable ${NSB_IP6}
+
+ a=${NSB_LO_IP6}
+ run_cmd ${ping6} -c1 -w1 ${a}
+ log_test_addr ${a} $? 2 "ping out, unreachable route"
+
+ log_start
+ run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+ log_test_addr ${a} $? 2 "ping out, device bind, unreachable route"
+}
+
+ipv6_ping_vrf()
+{
+ local a
+
+ # should default on; does not exist on older kernels
+ set_sysctl net.ipv4.raw_l3mdev_accept=1 2>/dev/null
+
+ #
+ # out
+ #
+ for a in ${NSB_IP6} ${NSB_LO_IP6}
+ do
+ log_start
+ run_cmd ${ping6} -c1 -w1 -I ${VRF} ${a}
+ log_test_addr ${a} $? 0 "ping out, VRF bind"
+ done
+
+ for a in ${NSB_LINKIP6}%${VRF} ${MCAST}%${VRF}
+ do
+ log_start
+ show_hint "Fails since VRF device does not support linklocal or multicast"
+ run_cmd ${ping6} -c1 -w1 ${a}
+ log_test_addr ${a} $? 1 "ping out, VRF bind"
+ done
+
+ for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}%${NSA_DEV} ${MCAST}%${NSA_DEV}
+ do
+ log_start
+ run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+ log_test_addr ${a} $? 0 "ping out, device bind"
+ done
+
+ for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}%${NSA_DEV}
+ do
+ log_start
+ run_cmd ip vrf exec ${VRF} ${ping6} -c1 -w1 -I ${VRF_IP6} ${a}
+ log_test_addr ${a} $? 0 "ping out, vrf device+address bind"
+ done
+
+ #
+ # in
+ #
+ for a in ${NSA_IP6} ${VRF_IP6} ${NSA_LINKIP6}%${NSB_DEV} ${MCAST}%${NSB_DEV}
+ do
+ log_start
+ run_cmd_nsb ${ping6} -c1 -w1 ${a}
+ log_test_addr ${a} $? 0 "ping in"
+ done
+
+ a=${NSA_LO_IP6}
+ log_start
+ show_hint "Fails since loopback address is out of VRF scope"
+ run_cmd_nsb ${ping6} -c1 -w1 ${a}
+ log_test_addr ${a} $? 1 "ping in"
+
+ #
+ # local traffic, local address
+ #
+ for a in ${NSA_IP6} ${VRF_IP6} ::1
+ do
+ log_start
+ show_hint "Source address should be ${a}"
+ run_cmd ${ping6} -c1 -w1 -I ${VRF} ${a}
+ log_test_addr ${a} $? 0 "ping local, VRF bind"
+ done
+
+ for a in ${NSA_IP6} ${NSA_LINKIP6}%${NSA_DEV} ${MCAST}%${NSA_DEV}
+ do
+ log_start
+ run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+ log_test_addr ${a} $? 0 "ping local, device bind"
+ done
+
+ # LLA to GUA - remove ipv6 global addresses from ns-B
+ setup_cmd_nsb ip -6 addr del ${NSB_IP6}/64 dev ${NSB_DEV}
+ setup_cmd_nsb ip -6 addr del ${NSB_LO_IP6}/128 dev lo
+ setup_cmd_nsb ip -6 ro add ${NSA_IP6}/128 via ${NSA_LINKIP6} dev ${NSB_DEV}
+
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd_nsb ${ping6} -c1 -w1 ${NSA_IP6}
+ log_test_addr ${a} $? 0 "ping in, LLA to GUA"
+ done
+
+ setup_cmd_nsb ip -6 ro del ${NSA_IP6}/128 via ${NSA_LINKIP6} dev ${NSB_DEV}
+ setup_cmd_nsb ip -6 addr add ${NSB_IP6}/64 dev ${NSB_DEV}
+ setup_cmd_nsb ip -6 addr add ${NSB_LO_IP6}/128 dev lo
+
+ #
+ # ip rule blocks address
+ #
+ log_start
+ setup_cmd ip -6 rule add pref 50 to ${NSB_LO_IP6} prohibit
+ setup_cmd ip -6 rule add pref 51 from ${NSB_IP6} prohibit
+
+ a=${NSB_LO_IP6}
+ run_cmd ${ping6} -c1 -w1 ${a}
+ log_test_addr ${a} $? 2 "ping out, blocked by rule"
+
+ log_start
+ run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+ log_test_addr ${a} $? 2 "ping out, device bind, blocked by rule"
+
+ a=${NSA_LO_IP6}
+ log_start
+ show_hint "Response lost due to ip rule"
+ run_cmd_nsb ${ping6} -c1 -w1 ${a}
+ log_test_addr ${a} $? 1 "ping in, blocked by rule"
+
+ log_start
+ setup_cmd ip -6 rule del pref 50 to ${NSB_LO_IP6} prohibit
+ setup_cmd ip -6 rule del pref 51 from ${NSB_IP6} prohibit
+
+ #
+ # remove 'remote' routes; fallback to default
+ #
+ log_start
+ setup_cmd ip -6 ro del ${NSB_LO_IP6} vrf ${VRF}
+
+ a=${NSB_LO_IP6}
+ run_cmd ${ping6} -c1 -w1 ${a}
+ log_test_addr ${a} $? 2 "ping out, unreachable route"
+
+ log_start
+ run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+ log_test_addr ${a} $? 2 "ping out, device bind, unreachable route"
+
+ ip -netns ${NSB} -6 ro del ${NSA_LO_IP6}
+ a=${NSA_LO_IP6}
+ log_start
+ run_cmd_nsb ${ping6} -c1 -w1 ${a}
+ log_test_addr ${a} $? 2 "ping in, unreachable route"
+}
+
+ipv6_ping()
+{
+ log_section "IPv6 ping"
+
+ log_subsection "No VRF"
+ setup
+ ipv6_ping_novrf
+ setup
+ set_sysctl net.ipv4.ping_group_range='0 2147483647' 2>/dev/null
+ ipv6_ping_novrf
+
+ log_subsection "With VRF"
+ setup "yes"
+ ipv6_ping_vrf
+ setup "yes"
+ set_sysctl net.ipv4.ping_group_range='0 2147483647' 2>/dev/null
+ ipv6_ping_vrf
+}
+
+################################################################################
+# IPv6 TCP
+
+#
+# MD5 tests without VRF
+#
+ipv6_tcp_md5_novrf()
+{
+ #
+ # single address
+ #
+
+ # basic use case
+ log_start
+ run_cmd nettest -6 -s -M ${MD5_PW} -r ${NSB_IP6} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_PW}
+ log_test $? 0 "MD5: Single address config"
+
+ # client sends MD5, server not configured
+ log_start
+ show_hint "Should timeout due to MD5 mismatch"
+ run_cmd nettest -6 -s &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_PW}
+ log_test $? 2 "MD5: Server no config, client uses password"
+
+ # wrong password
+ log_start
+ show_hint "Should timeout since client uses wrong password"
+ run_cmd nettest -6 -s -M ${MD5_PW} -r ${NSB_IP6} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_WRONG_PW}
+ log_test $? 2 "MD5: Client uses wrong password"
+
+ # client from different address
+ log_start
+ show_hint "Should timeout due to MD5 mismatch"
+ run_cmd nettest -6 -s -M ${MD5_PW} -r ${NSB_LO_IP6} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_PW}
+ log_test $? 2 "MD5: Client address does not match address configured with password"
+
+ #
+ # MD5 extension - prefix length
+ #
+
+ # client in prefix
+ log_start
+ run_cmd nettest -6 -s -M ${MD5_PW} -m ${NS_NET6} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_PW}
+ log_test $? 0 "MD5: Prefix config"
+
+ # client in prefix, wrong password
+ log_start
+ show_hint "Should timeout since client uses wrong password"
+ run_cmd nettest -6 -s -M ${MD5_PW} -m ${NS_NET6} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_WRONG_PW}
+ log_test $? 2 "MD5: Prefix config, client uses wrong password"
+
+ # client outside of prefix
+ log_start
+ show_hint "Should timeout due to MD5 mismatch"
+ run_cmd nettest -6 -s -M ${MD5_PW} -m ${NS_NET6} &
+ sleep 1
+ run_cmd_nsb nettest -6 -l ${NSB_LO_IP6} -r ${NSA_IP6} -M ${MD5_PW}
+ log_test $? 2 "MD5: Prefix config, client address not in configured prefix"
+}
+
+#
+# MD5 tests with VRF
+#
+ipv6_tcp_md5()
+{
+ #
+ # single address
+ #
+
+ # basic use case
+ log_start
+ run_cmd nettest -6 -s -d ${VRF} -M ${MD5_PW} -r ${NSB_IP6} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_PW}
+ log_test $? 0 "MD5: VRF: Single address config"
+
+ # client sends MD5, server not configured
+ log_start
+ show_hint "Should timeout since server does not have MD5 auth"
+ run_cmd nettest -6 -s -d ${VRF} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_PW}
+ log_test $? 2 "MD5: VRF: Server no config, client uses password"
+
+ # wrong password
+ log_start
+ show_hint "Should timeout since client uses wrong password"
+ run_cmd nettest -6 -s -d ${VRF} -M ${MD5_PW} -r ${NSB_IP6} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_WRONG_PW}
+ log_test $? 2 "MD5: VRF: Client uses wrong password"
+
+ # client from different address
+ log_start
+ show_hint "Should timeout since server config differs from client"
+ run_cmd nettest -6 -s -d ${VRF} -M ${MD5_PW} -r ${NSB_LO_IP6} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_PW}
+ log_test $? 2 "MD5: VRF: Client address does not match address configured with password"
+
+ #
+ # MD5 extension - prefix length
+ #
+
+ # client in prefix
+ log_start
+ run_cmd nettest -6 -s -d ${VRF} -M ${MD5_PW} -m ${NS_NET6} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_PW}
+ log_test $? 0 "MD5: VRF: Prefix config"
+
+ # client in prefix, wrong password
+ log_start
+ show_hint "Should timeout since client uses wrong password"
+ run_cmd nettest -6 -s -d ${VRF} -M ${MD5_PW} -m ${NS_NET6} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_WRONG_PW}
+ log_test $? 2 "MD5: VRF: Prefix config, client uses wrong password"
+
+ # client outside of prefix
+ log_start
+ show_hint "Should timeout since client address is outside of prefix"
+ run_cmd nettest -6 -s -d ${VRF} -M ${MD5_PW} -m ${NS_NET6} &
+ sleep 1
+ run_cmd_nsb nettest -6 -l ${NSB_LO_IP6} -r ${NSA_IP6} -M ${MD5_PW}
+ log_test $? 2 "MD5: VRF: Prefix config, client address not in configured prefix"
+
+ #
+ # duplicate config between default VRF and a VRF
+ #
+
+ log_start
+ run_cmd nettest -6 -s -d ${VRF} -M ${MD5_PW} -r ${NSB_IP6} &
+ run_cmd nettest -6 -s -M ${MD5_WRONG_PW} -r ${NSB_IP6} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_PW}
+ log_test $? 0 "MD5: VRF: Single address config in default VRF and VRF, conn in VRF"
+
+ log_start
+ run_cmd nettest -6 -s -d ${VRF} -M ${MD5_PW} -r ${NSB_IP6} &
+ run_cmd nettest -6 -s -M ${MD5_WRONG_PW} -r ${NSB_IP6} &
+ sleep 1
+ run_cmd_nsc nettest -6 -r ${NSA_IP6} -M ${MD5_WRONG_PW}
+ log_test $? 0 "MD5: VRF: Single address config in default VRF and VRF, conn in default VRF"
+
+ log_start
+ show_hint "Should timeout since client in default VRF uses VRF password"
+ run_cmd nettest -6 -s -d ${VRF} -M ${MD5_PW} -r ${NSB_IP6} &
+ run_cmd nettest -6 -s -M ${MD5_WRONG_PW} -r ${NSB_IP6} &
+ sleep 1
+ run_cmd_nsc nettest -6 -r ${NSA_IP6} -M ${MD5_PW}
+ log_test $? 2 "MD5: VRF: Single address config in default VRF and VRF, conn in default VRF with VRF pw"
+
+ log_start
+ show_hint "Should timeout since client in VRF uses default VRF password"
+ run_cmd nettest -6 -s -d ${VRF} -M ${MD5_PW} -r ${NSB_IP6} &
+ run_cmd nettest -6 -s -M ${MD5_WRONG_PW} -r ${NSB_IP6} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_WRONG_PW}
+ log_test $? 2 "MD5: VRF: Single address config in default VRF and VRF, conn in VRF with default VRF pw"
+
+ log_start
+ run_cmd nettest -6 -s -d ${VRF} -M ${MD5_PW} -m ${NS_NET6} &
+ run_cmd nettest -6 -s -M ${MD5_WRONG_PW} -m ${NS_NET6} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_PW}
+ log_test $? 0 "MD5: VRF: Prefix config in default VRF and VRF, conn in VRF"
+
+ log_start
+ run_cmd nettest -6 -s -d ${VRF} -M ${MD5_PW} -m ${NS_NET6} &
+ run_cmd nettest -6 -s -M ${MD5_WRONG_PW} -m ${NS_NET6} &
+ sleep 1
+ run_cmd_nsc nettest -6 -r ${NSA_IP6} -M ${MD5_WRONG_PW}
+ log_test $? 0 "MD5: VRF: Prefix config in default VRF and VRF, conn in default VRF"
+
+ log_start
+ show_hint "Should timeout since client in default VRF uses VRF password"
+ run_cmd nettest -6 -s -d ${VRF} -M ${MD5_PW} -m ${NS_NET6} &
+ run_cmd nettest -6 -s -M ${MD5_WRONG_PW} -m ${NS_NET6} &
+ sleep 1
+ run_cmd_nsc nettest -6 -r ${NSA_IP6} -M ${MD5_PW}
+ log_test $? 2 "MD5: VRF: Prefix config in default VRF and VRF, conn in default VRF with VRF pw"
+
+ log_start
+ show_hint "Should timeout since client in VRF uses default VRF password"
+ run_cmd nettest -6 -s -d ${VRF} -M ${MD5_PW} -m ${NS_NET6} &
+ run_cmd nettest -6 -s -M ${MD5_WRONG_PW} -m ${NS_NET6} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_WRONG_PW}
+ log_test $? 2 "MD5: VRF: Prefix config in default VRF and VRF, conn in VRF with default VRF pw"
+
+ #
+ # negative tests
+ #
+ log_start
+ run_cmd nettest -6 -s -d ${NSA_DEV} -M ${MD5_PW} -r ${NSB_IP6}
+ log_test $? 1 "MD5: VRF: Device must be a VRF - single address"
+
+ log_start
+ run_cmd nettest -6 -s -d ${NSA_DEV} -M ${MD5_PW} -m ${NS_NET6}
+ log_test $? 1 "MD5: VRF: Device must be a VRF - prefix"
+
+}
+
+ipv6_tcp_novrf()
+{
+ local a
+
+ #
+ # server tests
+ #
+ for a in ${NSA_IP6} ${NSA_LO_IP6} ${NSA_LINKIP6}%${NSB_DEV}
+ do
+ log_start
+ run_cmd nettest -6 -s &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${a}
+ log_test_addr ${a} $? 0 "Global server"
+ done
+
+ # verify TCP reset received
+ for a in ${NSA_IP6} ${NSA_LO_IP6} ${NSA_LINKIP6}%${NSB_DEV}
+ do
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd_nsb nettest -6 -r ${a}
+ log_test_addr ${a} $? 1 "No server"
+ done
+
+ #
+ # client
+ #
+ for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}%${NSA_DEV}
+ do
+ log_start
+ run_cmd_nsb nettest -6 -s &
+ sleep 1
+ run_cmd nettest -6 -r ${a}
+ log_test_addr ${a} $? 0 "Client"
+ done
+
+ for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}%${NSA_DEV}
+ do
+ log_start
+ run_cmd_nsb nettest -6 -s &
+ sleep 1
+ run_cmd nettest -6 -r ${a} -d ${NSA_DEV}
+ log_test_addr ${a} $? 0 "Client, device bind"
+ done
+
+ for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}%${NSA_DEV}
+ do
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd nettest -6 -r ${a} -d ${NSA_DEV}
+ log_test_addr ${a} $? 1 "No server, device client"
+ done
+
+ #
+ # local address tests
+ #
+ for a in ${NSA_IP6} ${NSA_LO_IP6} ::1
+ do
+ log_start
+ run_cmd nettest -6 -s &
+ sleep 1
+ run_cmd nettest -6 -r ${a}
+ log_test_addr ${a} $? 0 "Global server, local connection"
+ done
+
+ a=${NSA_IP6}
+ log_start
+ run_cmd nettest -6 -s -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -6 -r ${a} -0 ${a}
+ log_test_addr ${a} $? 0 "Device server, unbound client, local connection"
+
+ for a in ${NSA_LO_IP6} ::1
+ do
+ log_start
+ show_hint "Should fail 'Connection refused' since addresses on loopback are out of device scope"
+ run_cmd nettest -6 -s -d ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -6 -r ${a}
+ log_test_addr ${a} $? 1 "Device server, unbound client, local connection"
+ done
+
+ a=${NSA_IP6}
+ log_start
+ run_cmd nettest -6 -s &
+ sleep 1
+ run_cmd nettest -6 -r ${a} -d ${NSA_DEV} -0 ${a}
+ log_test_addr ${a} $? 0 "Global server, device client, local connection"
+
+ for a in ${NSA_LO_IP6} ::1
+ do
+ log_start
+ show_hint "Should fail 'Connection refused' since addresses on loopback are out of device scope"
+ run_cmd nettest -6 -s &
+ sleep 1
+ run_cmd nettest -6 -r ${a} -d ${NSA_DEV}
+ log_test_addr ${a} $? 1 "Global server, device client, local connection"
+ done
+
+ for a in ${NSA_IP6} ${NSA_LINKIP6}
+ do
+ log_start
+ run_cmd nettest -6 -s -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -6 -d ${NSA_DEV} -r ${a}
+ log_test_addr ${a} $? 0 "Device server, device client, local conn"
+ done
+
+ for a in ${NSA_IP6} ${NSA_LINKIP6}
+ do
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd nettest -6 -d ${NSA_DEV} -r ${a}
+ log_test_addr ${a} $? 1 "No server, device client, local conn"
+ done
+
+ [ "$fips_enabled" = "1" ] || ipv6_tcp_md5_novrf
+}
+
+ipv6_tcp_vrf()
+{
+ local a
+
+ # disable global server
+ log_subsection "Global server disabled"
+
+ set_sysctl net.ipv4.tcp_l3mdev_accept=0
+
+ #
+ # server tests
+ #
+ for a in ${NSA_IP6} ${VRF_IP6} ${NSA_LINKIP6}%${NSB_DEV}
+ do
+ log_start
+ show_hint "Should fail 'Connection refused' since global server with VRF is disabled"
+ run_cmd nettest -6 -s &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${a}
+ log_test_addr ${a} $? 1 "Global server"
+ done
+
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest -6 -s -d ${VRF} -2 ${VRF} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${a}
+ log_test_addr ${a} $? 0 "VRF server"
+ done
+
+ # link local is always bound to ingress device
+ a=${NSA_LINKIP6}%${NSB_DEV}
+ log_start
+ run_cmd nettest -6 -s -d ${VRF} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${a}
+ log_test_addr ${a} $? 0 "VRF server"
+
+ for a in ${NSA_IP6} ${VRF_IP6} ${NSA_LINKIP6}%${NSB_DEV}
+ do
+ log_start
+ run_cmd nettest -6 -s -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${a}
+ log_test_addr ${a} $? 0 "Device server"
+ done
+
+ # verify TCP reset received
+ for a in ${NSA_IP6} ${VRF_IP6} ${NSA_LINKIP6}%${NSB_DEV}
+ do
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd_nsb nettest -6 -r ${a}
+ log_test_addr ${a} $? 1 "No server"
+ done
+
+ # local address tests
+ a=${NSA_IP6}
+ log_start
+ show_hint "Should fail 'Connection refused' since global server with VRF is disabled"
+ run_cmd nettest -6 -s &
+ sleep 1
+ run_cmd nettest -6 -r ${a} -d ${NSA_DEV}
+ log_test_addr ${a} $? 1 "Global server, local connection"
+
+ # run MD5 tests
+ if [ "$fips_enabled" = "0" ]; then
+ setup_vrf_dup
+ ipv6_tcp_md5
+ cleanup_vrf_dup
+ fi
+
+ #
+ # enable VRF global server
+ #
+ log_subsection "VRF Global server enabled"
+ set_sysctl net.ipv4.tcp_l3mdev_accept=1
+
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest -6 -s -2 ${VRF} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${a}
+ log_test_addr ${a} $? 0 "Global server"
+ done
+
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest -6 -s -d ${VRF} -2 ${VRF} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${a}
+ log_test_addr ${a} $? 0 "VRF server"
+ done
+
+ # For LLA, child socket is bound to device
+ a=${NSA_LINKIP6}%${NSB_DEV}
+ log_start
+ run_cmd nettest -6 -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${a}
+ log_test_addr ${a} $? 0 "Global server"
+
+ log_start
+ run_cmd nettest -6 -s -d ${VRF} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${a}
+ log_test_addr ${a} $? 0 "VRF server"
+
+ for a in ${NSA_IP6} ${NSA_LINKIP6}%${NSB_DEV}
+ do
+ log_start
+ run_cmd nettest -6 -s -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${a}
+ log_test_addr ${a} $? 0 "Device server"
+ done
+
+ # verify TCP reset received
+ for a in ${NSA_IP6} ${VRF_IP6} ${NSA_LINKIP6}%${NSB_DEV}
+ do
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd_nsb nettest -6 -r ${a}
+ log_test_addr ${a} $? 1 "No server"
+ done
+
+ # local address tests
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ show_hint "Fails 'Connection refused' since client is not in VRF"
+ run_cmd nettest -6 -s -d ${VRF} &
+ sleep 1
+ run_cmd nettest -6 -r ${a}
+ log_test_addr ${a} $? 1 "Global server, local connection"
+ done
+
+
+ #
+ # client
+ #
+ for a in ${NSB_IP6} ${NSB_LO_IP6}
+ do
+ log_start
+ run_cmd_nsb nettest -6 -s &
+ sleep 1
+ run_cmd nettest -6 -r ${a} -d ${VRF}
+ log_test_addr ${a} $? 0 "Client, VRF bind"
+ done
+
+ a=${NSB_LINKIP6}
+ log_start
+ show_hint "Fails since VRF device does not allow linklocal addresses"
+ run_cmd_nsb nettest -6 -s &
+ sleep 1
+ run_cmd nettest -6 -r ${a} -d ${VRF}
+ log_test_addr ${a} $? 1 "Client, VRF bind"
+
+ for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}
+ do
+ log_start
+ run_cmd_nsb nettest -6 -s &
+ sleep 1
+ run_cmd nettest -6 -r ${a} -d ${NSA_DEV}
+ log_test_addr ${a} $? 0 "Client, device bind"
+ done
+
+ for a in ${NSB_IP6} ${NSB_LO_IP6}
+ do
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd nettest -6 -r ${a} -d ${VRF}
+ log_test_addr ${a} $? 1 "No server, VRF client"
+ done
+
+ for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}
+ do
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd nettest -6 -r ${a} -d ${NSA_DEV}
+ log_test_addr ${a} $? 1 "No server, device client"
+ done
+
+ for a in ${NSA_IP6} ${VRF_IP6} ::1
+ do
+ log_start
+ run_cmd nettest -6 -s -d ${VRF} -2 ${VRF} &
+ sleep 1
+ run_cmd nettest -6 -r ${a} -d ${VRF} -0 ${a}
+ log_test_addr ${a} $? 0 "VRF server, VRF client, local connection"
+ done
+
+ a=${NSA_IP6}
+ log_start
+ run_cmd nettest -6 -s -d ${VRF} -2 ${VRF} &
+ sleep 1
+ run_cmd nettest -6 -r ${a} -d ${NSA_DEV} -0 ${a}
+ log_test_addr ${a} $? 0 "VRF server, device client, local connection"
+
+ a=${NSA_IP6}
+ log_start
+ show_hint "Should fail since unbound client is out of VRF scope"
+ run_cmd nettest -6 -s -d ${VRF} &
+ sleep 1
+ run_cmd nettest -6 -r ${a}
+ log_test_addr ${a} $? 1 "VRF server, unbound client, local connection"
+
+ log_start
+ run_cmd nettest -6 -s -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -6 -r ${a} -d ${VRF} -0 ${a}
+ log_test_addr ${a} $? 0 "Device server, VRF client, local connection"
+
+ for a in ${NSA_IP6} ${NSA_LINKIP6}
+ do
+ log_start
+ run_cmd nettest -6 -s -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -6 -r ${a} -d ${NSA_DEV} -0 ${a}
+ log_test_addr ${a} $? 0 "Device server, device client, local connection"
+ done
+}
+
+ipv6_tcp()
+{
+ log_section "IPv6/TCP"
+ log_subsection "No VRF"
+ setup
+
+ # tcp_l3mdev_accept should have no affect without VRF;
+ # run tests with it enabled and disabled to verify
+ log_subsection "tcp_l3mdev_accept disabled"
+ set_sysctl net.ipv4.tcp_l3mdev_accept=0
+ ipv6_tcp_novrf
+ log_subsection "tcp_l3mdev_accept enabled"
+ set_sysctl net.ipv4.tcp_l3mdev_accept=1
+ ipv6_tcp_novrf
+
+ log_subsection "With VRF"
+ setup "yes"
+ ipv6_tcp_vrf
+}
+
+################################################################################
+# IPv6 UDP
+
+ipv6_udp_novrf()
+{
+ local a
+
+ #
+ # server tests
+ #
+ for a in ${NSA_IP6} ${NSA_LINKIP6}%${NSB_DEV}
+ do
+ log_start
+ run_cmd nettest -6 -D -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -6 -D -r ${a}
+ log_test_addr ${a} $? 0 "Global server"
+
+ log_start
+ run_cmd nettest -6 -D -d ${NSA_DEV} -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -6 -D -r ${a}
+ log_test_addr ${a} $? 0 "Device server"
+ done
+
+ a=${NSA_LO_IP6}
+ log_start
+ run_cmd nettest -6 -D -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -6 -D -r ${a}
+ log_test_addr ${a} $? 0 "Global server"
+
+ # should fail since loopback address is out of scope for a device
+ # bound server, but it does not - hence this is more documenting
+ # behavior.
+ #log_start
+ #show_hint "Should fail since loopback address is out of scope"
+ #run_cmd nettest -6 -D -d ${NSA_DEV} -s -2 ${NSA_DEV} &
+ #sleep 1
+ #run_cmd_nsb nettest -6 -D -r ${a}
+ #log_test_addr ${a} $? 1 "Device server"
+
+ # negative test - should fail
+ for a in ${NSA_IP6} ${NSA_LO_IP6} ${NSA_LINKIP6}%${NSB_DEV}
+ do
+ log_start
+ show_hint "Should fail 'Connection refused' since there is no server"
+ run_cmd_nsb nettest -6 -D -r ${a}
+ log_test_addr ${a} $? 1 "No server"
+ done
+
+ #
+ # client
+ #
+ for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}%${NSA_DEV}
+ do
+ log_start
+ run_cmd_nsb nettest -6 -D -s &
+ sleep 1
+ run_cmd nettest -6 -D -r ${a} -0 ${NSA_IP6}
+ log_test_addr ${a} $? 0 "Client"
+
+ log_start
+ run_cmd_nsb nettest -6 -D -s &
+ sleep 1
+ run_cmd nettest -6 -D -r ${a} -d ${NSA_DEV} -0 ${NSA_IP6}
+ log_test_addr ${a} $? 0 "Client, device bind"
+
+ log_start
+ run_cmd_nsb nettest -6 -D -s &
+ sleep 1
+ run_cmd nettest -6 -D -r ${a} -d ${NSA_DEV} -C -0 ${NSA_IP6}
+ log_test_addr ${a} $? 0 "Client, device send via cmsg"
+
+ log_start
+ run_cmd_nsb nettest -6 -D -s &
+ sleep 1
+ run_cmd nettest -6 -D -r ${a} -d ${NSA_DEV} -S -0 ${NSA_IP6}
+ log_test_addr ${a} $? 0 "Client, device bind via IPV6_UNICAST_IF"
+
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd nettest -6 -D -r ${a}
+ log_test_addr ${a} $? 1 "No server, unbound client"
+
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd nettest -6 -D -r ${a} -d ${NSA_DEV}
+ log_test_addr ${a} $? 1 "No server, device client"
+ done
+
+ #
+ # local address tests
+ #
+ for a in ${NSA_IP6} ${NSA_LO_IP6} ::1
+ do
+ log_start
+ run_cmd nettest -6 -D -s &
+ sleep 1
+ run_cmd nettest -6 -D -r ${a} -0 ${a} -1 ${a}
+ log_test_addr ${a} $? 0 "Global server, local connection"
+ done
+
+ a=${NSA_IP6}
+ log_start
+ run_cmd nettest -6 -s -D -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -6 -D -r ${a}
+ log_test_addr ${a} $? 0 "Device server, unbound client, local connection"
+
+ for a in ${NSA_LO_IP6} ::1
+ do
+ log_start
+ show_hint "Should fail 'Connection refused' since address is out of device scope"
+ run_cmd nettest -6 -s -D -d ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -6 -D -r ${a}
+ log_test_addr ${a} $? 1 "Device server, local connection"
+ done
+
+ a=${NSA_IP6}
+ log_start
+ run_cmd nettest -6 -s -D &
+ sleep 1
+ run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a}
+ log_test_addr ${a} $? 0 "Global server, device client, local connection"
+
+ log_start
+ run_cmd nettest -6 -s -D &
+ sleep 1
+ run_cmd nettest -6 -D -d ${NSA_DEV} -C -r ${a}
+ log_test_addr ${a} $? 0 "Global server, device send via cmsg, local connection"
+
+ log_start
+ run_cmd nettest -6 -s -D &
+ sleep 1
+ run_cmd nettest -6 -D -d ${NSA_DEV} -S -r ${a}
+ log_test_addr ${a} $? 0 "Global server, device client via IPV6_UNICAST_IF, local connection"
+
+ for a in ${NSA_LO_IP6} ::1
+ do
+ log_start
+ show_hint "Should fail 'No route to host' since addresses on loopback are out of device scope"
+ run_cmd nettest -6 -D -s &
+ sleep 1
+ run_cmd nettest -6 -D -r ${a} -d ${NSA_DEV}
+ log_test_addr ${a} $? 1 "Global server, device client, local connection"
+
+ log_start
+ show_hint "Should fail 'No route to host' since addresses on loopback are out of device scope"
+ run_cmd nettest -6 -D -s &
+ sleep 1
+ run_cmd nettest -6 -D -r ${a} -d ${NSA_DEV} -C
+ log_test_addr ${a} $? 1 "Global server, device send via cmsg, local connection"
+
+ log_start
+ show_hint "Should fail 'No route to host' since addresses on loopback are out of device scope"
+ run_cmd nettest -6 -D -s &
+ sleep 1
+ run_cmd nettest -6 -D -r ${a} -d ${NSA_DEV} -S
+ log_test_addr ${a} $? 1 "Global server, device client via IP_UNICAST_IF, local connection"
+ done
+
+ a=${NSA_IP6}
+ log_start
+ run_cmd nettest -6 -D -s -d ${NSA_DEV} -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a} -0 ${a}
+ log_test_addr ${a} $? 0 "Device server, device client, local conn"
+
+ log_start
+ show_hint "Should fail 'Connection refused'"
+ run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a}
+ log_test_addr ${a} $? 1 "No server, device client, local conn"
+
+ # LLA to GUA
+ run_cmd_nsb ip -6 addr del ${NSB_IP6}/64 dev ${NSB_DEV}
+ run_cmd_nsb ip -6 ro add ${NSA_IP6}/128 dev ${NSB_DEV}
+ log_start
+ run_cmd nettest -6 -s -D &
+ sleep 1
+ run_cmd_nsb nettest -6 -D -r ${NSA_IP6}
+ log_test $? 0 "UDP in - LLA to GUA"
+
+ run_cmd_nsb ip -6 ro del ${NSA_IP6}/128 dev ${NSB_DEV}
+ run_cmd_nsb ip -6 addr add ${NSB_IP6}/64 dev ${NSB_DEV} nodad
+}
+
+ipv6_udp_vrf()
+{
+ local a
+
+ # disable global server
+ log_subsection "Global server disabled"
+ set_sysctl net.ipv4.udp_l3mdev_accept=0
+
+ #
+ # server tests
+ #
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ show_hint "Should fail 'Connection refused' since global server is disabled"
+ run_cmd nettest -6 -D -s &
+ sleep 1
+ run_cmd_nsb nettest -6 -D -r ${a}
+ log_test_addr ${a} $? 1 "Global server"
+ done
+
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest -6 -D -d ${VRF} -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -6 -D -r ${a}
+ log_test_addr ${a} $? 0 "VRF server"
+ done
+
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest -6 -D -d ${NSA_DEV} -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -6 -D -r ${a}
+ log_test_addr ${a} $? 0 "Enslaved device server"
+ done
+
+ # negative test - should fail
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ show_hint "Should fail 'Connection refused' since there is no server"
+ run_cmd_nsb nettest -6 -D -r ${a}
+ log_test_addr ${a} $? 1 "No server"
+ done
+
+ #
+ # local address tests
+ #
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ show_hint "Should fail 'Connection refused' since global server is disabled"
+ run_cmd nettest -6 -D -s &
+ sleep 1
+ run_cmd nettest -6 -D -d ${VRF} -r ${a}
+ log_test_addr ${a} $? 1 "Global server, VRF client, local conn"
+ done
+
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest -6 -D -d ${VRF} -s &
+ sleep 1
+ run_cmd nettest -6 -D -d ${VRF} -r ${a}
+ log_test_addr ${a} $? 0 "VRF server, VRF client, local conn"
+ done
+
+ a=${NSA_IP6}
+ log_start
+ show_hint "Should fail 'Connection refused' since global server is disabled"
+ run_cmd nettest -6 -D -s &
+ sleep 1
+ run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a}
+ log_test_addr ${a} $? 1 "Global server, device client, local conn"
+
+ log_start
+ run_cmd nettest -6 -D -d ${VRF} -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a}
+ log_test_addr ${a} $? 0 "VRF server, device client, local conn"
+
+ log_start
+ run_cmd nettest -6 -D -d ${NSA_DEV} -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -6 -D -d ${VRF} -r ${a}
+ log_test_addr ${a} $? 0 "Enslaved device server, VRF client, local conn"
+
+ log_start
+ run_cmd nettest -6 -D -d ${NSA_DEV} -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a}
+ log_test_addr ${a} $? 0 "Enslaved device server, device client, local conn"
+
+ # disable global server
+ log_subsection "Global server enabled"
+ set_sysctl net.ipv4.udp_l3mdev_accept=1
+
+ #
+ # server tests
+ #
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest -6 -D -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -6 -D -r ${a}
+ log_test_addr ${a} $? 0 "Global server"
+ done
+
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest -6 -D -d ${VRF} -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -6 -D -r ${a}
+ log_test_addr ${a} $? 0 "VRF server"
+ done
+
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest -6 -D -d ${NSA_DEV} -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd_nsb nettest -6 -D -r ${a}
+ log_test_addr ${a} $? 0 "Enslaved device server"
+ done
+
+ # negative test - should fail
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd_nsb nettest -6 -D -r ${a}
+ log_test_addr ${a} $? 1 "No server"
+ done
+
+ #
+ # client tests
+ #
+ log_start
+ run_cmd_nsb nettest -6 -D -s &
+ sleep 1
+ run_cmd nettest -6 -D -d ${VRF} -r ${NSB_IP6}
+ log_test $? 0 "VRF client"
+
+ # negative test - should fail
+ log_start
+ run_cmd nettest -6 -D -d ${VRF} -r ${NSB_IP6}
+ log_test $? 1 "No server, VRF client"
+
+ log_start
+ run_cmd_nsb nettest -6 -D -s &
+ sleep 1
+ run_cmd nettest -6 -D -d ${NSA_DEV} -r ${NSB_IP6}
+ log_test $? 0 "Enslaved device client"
+
+ # negative test - should fail
+ log_start
+ run_cmd nettest -6 -D -d ${NSA_DEV} -r ${NSB_IP6}
+ log_test $? 1 "No server, enslaved device client"
+
+ #
+ # local address tests
+ #
+ a=${NSA_IP6}
+ log_start
+ run_cmd nettest -6 -D -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -6 -D -d ${VRF} -r ${a}
+ log_test_addr ${a} $? 0 "Global server, VRF client, local conn"
+
+ #log_start
+ run_cmd nettest -6 -D -d ${VRF} -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -6 -D -d ${VRF} -r ${a}
+ log_test_addr ${a} $? 0 "VRF server, VRF client, local conn"
+
+
+ a=${VRF_IP6}
+ log_start
+ run_cmd nettest -6 -D -s -2 ${VRF} &
+ sleep 1
+ run_cmd nettest -6 -D -d ${VRF} -r ${a}
+ log_test_addr ${a} $? 0 "Global server, VRF client, local conn"
+
+ log_start
+ run_cmd nettest -6 -D -d ${VRF} -s -2 ${VRF} &
+ sleep 1
+ run_cmd nettest -6 -D -d ${VRF} -r ${a}
+ log_test_addr ${a} $? 0 "VRF server, VRF client, local conn"
+
+ # negative test - should fail
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest -6 -D -d ${VRF} -r ${a}
+ log_test_addr ${a} $? 1 "No server, VRF client, local conn"
+ done
+
+ # device to global IP
+ a=${NSA_IP6}
+ log_start
+ run_cmd nettest -6 -D -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a}
+ log_test_addr ${a} $? 0 "Global server, device client, local conn"
+
+ log_start
+ run_cmd nettest -6 -D -d ${VRF} -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a}
+ log_test_addr ${a} $? 0 "VRF server, device client, local conn"
+
+ log_start
+ run_cmd nettest -6 -D -d ${NSA_DEV} -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -6 -D -d ${VRF} -r ${a}
+ log_test_addr ${a} $? 0 "Device server, VRF client, local conn"
+
+ log_start
+ run_cmd nettest -6 -D -d ${NSA_DEV} -s -2 ${NSA_DEV} &
+ sleep 1
+ run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a}
+ log_test_addr ${a} $? 0 "Device server, device client, local conn"
+
+ log_start
+ run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a}
+ log_test_addr ${a} $? 1 "No server, device client, local conn"
+
+
+ # link local addresses
+ log_start
+ run_cmd nettest -6 -D -s &
+ sleep 1
+ run_cmd_nsb nettest -6 -D -d ${NSB_DEV} -r ${NSA_LINKIP6}
+ log_test $? 0 "Global server, linklocal IP"
+
+ log_start
+ run_cmd_nsb nettest -6 -D -d ${NSB_DEV} -r ${NSA_LINKIP6}
+ log_test $? 1 "No server, linklocal IP"
+
+
+ log_start
+ run_cmd_nsb nettest -6 -D -s &
+ sleep 1
+ run_cmd nettest -6 -D -d ${NSA_DEV} -r ${NSB_LINKIP6}
+ log_test $? 0 "Enslaved device client, linklocal IP"
+
+ log_start
+ run_cmd nettest -6 -D -d ${NSA_DEV} -r ${NSB_LINKIP6}
+ log_test $? 1 "No server, device client, peer linklocal IP"
+
+
+ log_start
+ run_cmd nettest -6 -D -s &
+ sleep 1
+ run_cmd nettest -6 -D -d ${NSA_DEV} -r ${NSA_LINKIP6}
+ log_test $? 0 "Enslaved device client, local conn - linklocal IP"
+
+ log_start
+ run_cmd nettest -6 -D -d ${NSA_DEV} -r ${NSA_LINKIP6}
+ log_test $? 1 "No server, device client, local conn - linklocal IP"
+
+ # LLA to GUA
+ run_cmd_nsb ip -6 addr del ${NSB_IP6}/64 dev ${NSB_DEV}
+ run_cmd_nsb ip -6 ro add ${NSA_IP6}/128 dev ${NSB_DEV}
+ log_start
+ run_cmd nettest -6 -s -D &
+ sleep 1
+ run_cmd_nsb nettest -6 -D -r ${NSA_IP6}
+ log_test $? 0 "UDP in - LLA to GUA"
+
+ run_cmd_nsb ip -6 ro del ${NSA_IP6}/128 dev ${NSB_DEV}
+ run_cmd_nsb ip -6 addr add ${NSB_IP6}/64 dev ${NSB_DEV} nodad
+}
+
+ipv6_udp()
+{
+ # should not matter, but set to known state
+ set_sysctl net.ipv4.udp_early_demux=1
+
+ log_section "IPv6/UDP"
+ log_subsection "No VRF"
+ setup
+
+ # udp_l3mdev_accept should have no affect without VRF;
+ # run tests with it enabled and disabled to verify
+ log_subsection "udp_l3mdev_accept disabled"
+ set_sysctl net.ipv4.udp_l3mdev_accept=0
+ ipv6_udp_novrf
+ log_subsection "udp_l3mdev_accept enabled"
+ set_sysctl net.ipv4.udp_l3mdev_accept=1
+ ipv6_udp_novrf
+
+ log_subsection "With VRF"
+ setup "yes"
+ ipv6_udp_vrf
+}
+
+################################################################################
+# IPv6 address bind
+
+ipv6_addr_bind_novrf()
+{
+ #
+ # raw socket
+ #
+ for a in ${NSA_IP6} ${NSA_LO_IP6}
+ do
+ log_start
+ run_cmd nettest -6 -s -R -P ipv6-icmp -l ${a} -b
+ log_test_addr ${a} $? 0 "Raw socket bind to local address"
+
+ log_start
+ run_cmd nettest -6 -s -R -P ipv6-icmp -l ${a} -d ${NSA_DEV} -b
+ log_test_addr ${a} $? 0 "Raw socket bind to local address after device bind"
+ done
+
+ #
+ # tcp sockets
+ #
+ a=${NSA_IP6}
+ log_start
+ run_cmd nettest -6 -s -l ${a} -t1 -b
+ log_test_addr ${a} $? 0 "TCP socket bind to local address"
+
+ log_start
+ run_cmd nettest -6 -s -l ${a} -d ${NSA_DEV} -t1 -b
+ log_test_addr ${a} $? 0 "TCP socket bind to local address after device bind"
+
+ # Sadly, the kernel allows binding a socket to a device and then
+ # binding to an address not on the device. So this test passes
+ # when it really should not
+ a=${NSA_LO_IP6}
+ log_start
+ show_hint "Tecnically should fail since address is not on device but kernel allows"
+ run_cmd nettest -6 -s -l ${a} -I ${NSA_DEV} -t1 -b
+ log_test_addr ${a} $? 0 "TCP socket bind to out of scope local address"
+}
+
+ipv6_addr_bind_vrf()
+{
+ #
+ # raw socket
+ #
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest -6 -s -R -P ipv6-icmp -l ${a} -d ${VRF} -b
+ log_test_addr ${a} $? 0 "Raw socket bind to local address after vrf bind"
+
+ log_start
+ run_cmd nettest -6 -s -R -P ipv6-icmp -l ${a} -d ${NSA_DEV} -b
+ log_test_addr ${a} $? 0 "Raw socket bind to local address after device bind"
+ done
+
+ a=${NSA_LO_IP6}
+ log_start
+ show_hint "Address on loopback is out of VRF scope"
+ run_cmd nettest -6 -s -R -P ipv6-icmp -l ${a} -d ${VRF} -b
+ log_test_addr ${a} $? 1 "Raw socket bind to invalid local address after vrf bind"
+
+ #
+ # tcp sockets
+ #
+ # address on enslaved device is valid for the VRF or device in a VRF
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest -6 -s -l ${a} -d ${VRF} -t1 -b
+ log_test_addr ${a} $? 0 "TCP socket bind to local address with VRF bind"
+ done
+
+ a=${NSA_IP6}
+ log_start
+ run_cmd nettest -6 -s -l ${a} -d ${NSA_DEV} -t1 -b
+ log_test_addr ${a} $? 0 "TCP socket bind to local address with device bind"
+
+ # Sadly, the kernel allows binding a socket to a device and then
+ # binding to an address not on the device. The only restriction
+ # is that the address is valid in the L3 domain. So this test
+ # passes when it really should not
+ a=${VRF_IP6}
+ log_start
+ show_hint "Tecnically should fail since address is not on device but kernel allows"
+ run_cmd nettest -6 -s -l ${a} -I ${NSA_DEV} -t1 -b
+ log_test_addr ${a} $? 0 "TCP socket bind to VRF address with device bind"
+
+ a=${NSA_LO_IP6}
+ log_start
+ show_hint "Address on loopback out of scope for VRF"
+ run_cmd nettest -6 -s -l ${a} -d ${VRF} -t1 -b
+ log_test_addr ${a} $? 1 "TCP socket bind to invalid local address for VRF"
+
+ log_start
+ show_hint "Address on loopback out of scope for device in VRF"
+ run_cmd nettest -6 -s -l ${a} -d ${NSA_DEV} -t1 -b
+ log_test_addr ${a} $? 1 "TCP socket bind to invalid local address for device bind"
+
+}
+
+ipv6_addr_bind()
+{
+ log_section "IPv6 address binds"
+
+ log_subsection "No VRF"
+ setup
+ ipv6_addr_bind_novrf
+
+ log_subsection "With VRF"
+ setup "yes"
+ ipv6_addr_bind_vrf
+}
+
+################################################################################
+# IPv6 runtime tests
+
+ipv6_rt()
+{
+ local desc="$1"
+ local varg="-6 $2"
+ local with_vrf="yes"
+ local a
+
+ #
+ # server tests
+ #
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest ${varg} -s &
+ sleep 1
+ run_cmd_nsb nettest ${varg} -r ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "${desc}, global server"
+
+ setup ${with_vrf}
+ done
+
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest ${varg} -d ${VRF} -s &
+ sleep 1
+ run_cmd_nsb nettest ${varg} -r ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "${desc}, VRF server"
+
+ setup ${with_vrf}
+ done
+
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest ${varg} -d ${NSA_DEV} -s &
+ sleep 1
+ run_cmd_nsb nettest ${varg} -r ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "${desc}, enslaved device server"
+
+ setup ${with_vrf}
+ done
+
+ #
+ # client test
+ #
+ log_start
+ run_cmd_nsb nettest ${varg} -s &
+ sleep 1
+ run_cmd nettest ${varg} -d ${VRF} -r ${NSB_IP6} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test 0 0 "${desc}, VRF client"
+
+ setup ${with_vrf}
+
+ log_start
+ run_cmd_nsb nettest ${varg} -s &
+ sleep 1
+ run_cmd nettest ${varg} -d ${NSA_DEV} -r ${NSB_IP6} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test 0 0 "${desc}, enslaved device client"
+
+ setup ${with_vrf}
+
+
+ #
+ # local address tests
+ #
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest ${varg} -s &
+ sleep 1
+ run_cmd nettest ${varg} -d ${VRF} -r ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "${desc}, global server, VRF client"
+
+ setup ${with_vrf}
+ done
+
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest ${varg} -d ${VRF} -s &
+ sleep 1
+ run_cmd nettest ${varg} -d ${VRF} -r ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "${desc}, VRF server and client"
+
+ setup ${with_vrf}
+ done
+
+ a=${NSA_IP6}
+ log_start
+ run_cmd nettest ${varg} -s &
+ sleep 1
+ run_cmd nettest ${varg} -d ${NSA_DEV} -r ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "${desc}, global server, device client"
+
+ setup ${with_vrf}
+
+ log_start
+ run_cmd nettest ${varg} -d ${VRF} -s &
+ sleep 1
+ run_cmd nettest ${varg} -d ${NSA_DEV} -r ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "${desc}, VRF server, device client"
+
+ setup ${with_vrf}
+
+ log_start
+ run_cmd nettest ${varg} -d ${NSA_DEV} -s &
+ sleep 1
+ run_cmd nettest ${varg} -d ${NSA_DEV} -r ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "${desc}, device server, device client"
+}
+
+ipv6_ping_rt()
+{
+ local with_vrf="yes"
+ local a
+
+ a=${NSA_IP6}
+ log_start
+ run_cmd_nsb ${ping6} -f ${a} &
+ sleep 3
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "Device delete with active traffic - ping in"
+
+ setup ${with_vrf}
+
+ log_start
+ run_cmd ${ping6} -f ${NSB_IP6} -I ${VRF} &
+ sleep 1
+ run_cmd ip link del ${VRF}
+ sleep 1
+ log_test_addr ${a} 0 0 "Device delete with active traffic - ping out"
+}
+
+ipv6_runtime()
+{
+ log_section "Run time tests - ipv6"
+
+ setup "yes"
+ ipv6_ping_rt
+
+ setup "yes"
+ ipv6_rt "TCP active socket" "-n -1"
+
+ setup "yes"
+ ipv6_rt "TCP passive socket" "-i"
+
+ setup "yes"
+ ipv6_rt "UDP active socket" "-D -n -1"
+}
+
+################################################################################
+# netfilter blocking connections
+
+netfilter_tcp_reset()
+{
+ local a
+
+ for a in ${NSA_IP} ${VRF_IP}
+ do
+ log_start
+ run_cmd nettest -s &
+ sleep 1
+ run_cmd_nsb nettest -r ${a}
+ log_test_addr ${a} $? 1 "Global server, reject with TCP-reset on Rx"
+ done
+}
+
+netfilter_icmp()
+{
+ local stype="$1"
+ local arg
+ local a
+
+ [ "${stype}" = "UDP" ] && arg="-D"
+
+ for a in ${NSA_IP} ${VRF_IP}
+ do
+ log_start
+ run_cmd nettest ${arg} -s &
+ sleep 1
+ run_cmd_nsb nettest ${arg} -r ${a}
+ log_test_addr ${a} $? 1 "Global ${stype} server, Rx reject icmp-port-unreach"
+ done
+}
+
+ipv4_netfilter()
+{
+ log_section "IPv4 Netfilter"
+ log_subsection "TCP reset"
+
+ setup "yes"
+ run_cmd iptables -A INPUT -p tcp --dport 12345 -j REJECT --reject-with tcp-reset
+
+ netfilter_tcp_reset
+
+ log_start
+ log_subsection "ICMP unreachable"
+
+ log_start
+ run_cmd iptables -F
+ run_cmd iptables -A INPUT -p tcp --dport 12345 -j REJECT --reject-with icmp-port-unreachable
+ run_cmd iptables -A INPUT -p udp --dport 12345 -j REJECT --reject-with icmp-port-unreachable
+
+ netfilter_icmp "TCP"
+ netfilter_icmp "UDP"
+
+ log_start
+ iptables -F
+}
+
+netfilter_tcp6_reset()
+{
+ local a
+
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest -6 -s &
+ sleep 1
+ run_cmd_nsb nettest -6 -r ${a}
+ log_test_addr ${a} $? 1 "Global server, reject with TCP-reset on Rx"
+ done
+}
+
+netfilter_icmp6()
+{
+ local stype="$1"
+ local arg
+ local a
+
+ [ "${stype}" = "UDP" ] && arg="$arg -D"
+
+ for a in ${NSA_IP6} ${VRF_IP6}
+ do
+ log_start
+ run_cmd nettest -6 -s ${arg} &
+ sleep 1
+ run_cmd_nsb nettest -6 ${arg} -r ${a}
+ log_test_addr ${a} $? 1 "Global ${stype} server, Rx reject icmp-port-unreach"
+ done
+}
+
+ipv6_netfilter()
+{
+ log_section "IPv6 Netfilter"
+ log_subsection "TCP reset"
+
+ setup "yes"
+ run_cmd ip6tables -A INPUT -p tcp --dport 12345 -j REJECT --reject-with tcp-reset
+
+ netfilter_tcp6_reset
+
+ log_subsection "ICMP unreachable"
+
+ log_start
+ run_cmd ip6tables -F
+ run_cmd ip6tables -A INPUT -p tcp --dport 12345 -j REJECT --reject-with icmp6-port-unreachable
+ run_cmd ip6tables -A INPUT -p udp --dport 12345 -j REJECT --reject-with icmp6-port-unreachable
+
+ netfilter_icmp6 "TCP"
+ netfilter_icmp6 "UDP"
+
+ log_start
+ ip6tables -F
+}
+
+################################################################################
+# specific use cases
+
+# VRF only.
+# ns-A device enslaved to bridge. Verify traffic with and without
+# br_netfilter module loaded. Repeat with SVI on bridge.
+use_case_br()
+{
+ setup "yes"
+
+ setup_cmd ip link set ${NSA_DEV} down
+ setup_cmd ip addr del dev ${NSA_DEV} ${NSA_IP}/24
+ setup_cmd ip -6 addr del dev ${NSA_DEV} ${NSA_IP6}/64
+
+ setup_cmd ip link add br0 type bridge
+ setup_cmd ip addr add dev br0 ${NSA_IP}/24
+ setup_cmd ip -6 addr add dev br0 ${NSA_IP6}/64 nodad
+
+ setup_cmd ip li set ${NSA_DEV} master br0
+ setup_cmd ip li set ${NSA_DEV} up
+ setup_cmd ip li set br0 up
+ setup_cmd ip li set br0 vrf ${VRF}
+
+ rmmod br_netfilter 2>/dev/null
+ sleep 5 # DAD
+
+ run_cmd ip neigh flush all
+ run_cmd ping -c1 -w1 -I br0 ${NSB_IP}
+ log_test $? 0 "Bridge into VRF - IPv4 ping out"
+
+ run_cmd ip neigh flush all
+ run_cmd ${ping6} -c1 -w1 -I br0 ${NSB_IP6}
+ log_test $? 0 "Bridge into VRF - IPv6 ping out"
+
+ run_cmd ip neigh flush all
+ run_cmd_nsb ping -c1 -w1 ${NSA_IP}
+ log_test $? 0 "Bridge into VRF - IPv4 ping in"
+
+ run_cmd ip neigh flush all
+ run_cmd_nsb ${ping6} -c1 -w1 ${NSA_IP6}
+ log_test $? 0 "Bridge into VRF - IPv6 ping in"
+
+ modprobe br_netfilter
+ if [ $? -eq 0 ]; then
+ run_cmd ip neigh flush all
+ run_cmd ping -c1 -w1 -I br0 ${NSB_IP}
+ log_test $? 0 "Bridge into VRF with br_netfilter - IPv4 ping out"
+
+ run_cmd ip neigh flush all
+ run_cmd ${ping6} -c1 -w1 -I br0 ${NSB_IP6}
+ log_test $? 0 "Bridge into VRF with br_netfilter - IPv6 ping out"
+
+ run_cmd ip neigh flush all
+ run_cmd_nsb ping -c1 -w1 ${NSA_IP}
+ log_test $? 0 "Bridge into VRF with br_netfilter - IPv4 ping in"
+
+ run_cmd ip neigh flush all
+ run_cmd_nsb ${ping6} -c1 -w1 ${NSA_IP6}
+ log_test $? 0 "Bridge into VRF with br_netfilter - IPv6 ping in"
+ fi
+
+ setup_cmd ip li set br0 nomaster
+ setup_cmd ip li add br0.100 link br0 type vlan id 100
+ setup_cmd ip li set br0.100 vrf ${VRF} up
+ setup_cmd ip addr add dev br0.100 172.16.101.1/24
+ setup_cmd ip -6 addr add dev br0.100 2001:db8:101::1/64 nodad
+
+ setup_cmd_nsb ip li add vlan100 link ${NSB_DEV} type vlan id 100
+ setup_cmd_nsb ip addr add dev vlan100 172.16.101.2/24
+ setup_cmd_nsb ip -6 addr add dev vlan100 2001:db8:101::2/64 nodad
+ setup_cmd_nsb ip li set vlan100 up
+ sleep 1
+
+ rmmod br_netfilter 2>/dev/null
+
+ run_cmd ip neigh flush all
+ run_cmd ping -c1 -w1 -I br0.100 172.16.101.2
+ log_test $? 0 "Bridge vlan into VRF - IPv4 ping out"
+
+ run_cmd ip neigh flush all
+ run_cmd ${ping6} -c1 -w1 -I br0.100 2001:db8:101::2
+ log_test $? 0 "Bridge vlan into VRF - IPv6 ping out"
+
+ run_cmd ip neigh flush all
+ run_cmd_nsb ping -c1 -w1 172.16.101.1
+ log_test $? 0 "Bridge vlan into VRF - IPv4 ping in"
+
+ run_cmd ip neigh flush all
+ run_cmd_nsb ${ping6} -c1 -w1 2001:db8:101::1
+ log_test $? 0 "Bridge vlan into VRF - IPv6 ping in"
+
+ modprobe br_netfilter
+ if [ $? -eq 0 ]; then
+ run_cmd ip neigh flush all
+ run_cmd ping -c1 -w1 -I br0.100 172.16.101.2
+ log_test $? 0 "Bridge vlan into VRF with br_netfilter - IPv4 ping out"
+
+ run_cmd ip neigh flush all
+ run_cmd ${ping6} -c1 -w1 -I br0.100 2001:db8:101::2
+ log_test $? 0 "Bridge vlan into VRF with br_netfilter - IPv6 ping out"
+
+ run_cmd ip neigh flush all
+ run_cmd_nsb ping -c1 -w1 172.16.101.1
+ log_test $? 0 "Bridge vlan into VRF - IPv4 ping in"
+
+ run_cmd ip neigh flush all
+ run_cmd_nsb ${ping6} -c1 -w1 2001:db8:101::1
+ log_test $? 0 "Bridge vlan into VRF - IPv6 ping in"
+ fi
+
+ setup_cmd ip li del br0 2>/dev/null
+ setup_cmd_nsb ip li del vlan100 2>/dev/null
+}
+
+# VRF only.
+# ns-A device is connected to both ns-B and ns-C on a single VRF but only has
+# LLA on the interfaces
+use_case_ping_lla_multi()
+{
+ setup_lla_only
+ # only want reply from ns-A
+ setup_cmd_nsb sysctl -qw net.ipv6.icmp.echo_ignore_multicast=1
+ setup_cmd_nsc sysctl -qw net.ipv6.icmp.echo_ignore_multicast=1
+
+ log_start
+ run_cmd_nsb ping -c1 -w1 ${MCAST}%${NSB_DEV}
+ log_test_addr ${MCAST}%${NSB_DEV} $? 0 "Pre cycle, ping out ns-B"
+
+ run_cmd_nsc ping -c1 -w1 ${MCAST}%${NSC_DEV}
+ log_test_addr ${MCAST}%${NSC_DEV} $? 0 "Pre cycle, ping out ns-C"
+
+ # cycle/flap the first ns-A interface
+ setup_cmd ip link set ${NSA_DEV} down
+ setup_cmd ip link set ${NSA_DEV} up
+ sleep 1
+
+ log_start
+ run_cmd_nsb ping -c1 -w1 ${MCAST}%${NSB_DEV}
+ log_test_addr ${MCAST}%${NSB_DEV} $? 0 "Post cycle ${NSA} ${NSA_DEV}, ping out ns-B"
+ run_cmd_nsc ping -c1 -w1 ${MCAST}%${NSC_DEV}
+ log_test_addr ${MCAST}%${NSC_DEV} $? 0 "Post cycle ${NSA} ${NSA_DEV}, ping out ns-C"
+
+ # cycle/flap the second ns-A interface
+ setup_cmd ip link set ${NSA_DEV2} down
+ setup_cmd ip link set ${NSA_DEV2} up
+ sleep 1
+
+ log_start
+ run_cmd_nsb ping -c1 -w1 ${MCAST}%${NSB_DEV}
+ log_test_addr ${MCAST}%${NSB_DEV} $? 0 "Post cycle ${NSA} ${NSA_DEV2}, ping out ns-B"
+ run_cmd_nsc ping -c1 -w1 ${MCAST}%${NSC_DEV}
+ log_test_addr ${MCAST}%${NSC_DEV} $? 0 "Post cycle ${NSA} ${NSA_DEV2}, ping out ns-C"
+}
+
+use_cases()
+{
+ log_section "Use cases"
+ log_subsection "Device enslaved to bridge"
+ use_case_br
+ log_subsection "Ping LLA with multiple interfaces"
+ use_case_ping_lla_multi
+}
+
+################################################################################
+# usage
+
+usage()
+{
+ cat <<EOF
+usage: ${0##*/} OPTS
+
+ -4 IPv4 tests only
+ -6 IPv6 tests only
+ -t <test> Test name/set to run
+ -p Pause on fail
+ -P Pause after each test
+ -v Be verbose
+EOF
+}
+
+################################################################################
+# main
+
+TESTS_IPV4="ipv4_ping ipv4_tcp ipv4_udp ipv4_bind ipv4_runtime ipv4_netfilter"
+TESTS_IPV6="ipv6_ping ipv6_tcp ipv6_udp ipv6_bind ipv6_runtime ipv6_netfilter"
+TESTS_OTHER="use_cases"
+
+PAUSE_ON_FAIL=no
+PAUSE=no
+
+while getopts :46t:pPvh o
+do
+ case $o in
+ 4) TESTS=ipv4;;
+ 6) TESTS=ipv6;;
+ t) TESTS=$OPTARG;;
+ p) PAUSE_ON_FAIL=yes;;
+ P) PAUSE=yes;;
+ v) VERBOSE=1;;
+ h) usage; exit 0;;
+ *) usage; exit 1;;
+ esac
+done
+
+# make sure we don't pause twice
+[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
+
+#
+# show user test config
+#
+if [ -z "$TESTS" ]; then
+ TESTS="$TESTS_IPV4 $TESTS_IPV6 $TESTS_OTHER"
+elif [ "$TESTS" = "ipv4" ]; then
+ TESTS="$TESTS_IPV4"
+elif [ "$TESTS" = "ipv6" ]; then
+ TESTS="$TESTS_IPV6"
+fi
+
+which nettest >/dev/null
+if [ $? -ne 0 ]; then
+ echo "'nettest' command not found; skipping tests"
+ exit 0
+fi
+
+declare -i nfail=0
+declare -i nsuccess=0
+
+for t in $TESTS
+do
+ case $t in
+ ipv4_ping|ping) ipv4_ping;;
+ ipv4_tcp|tcp) ipv4_tcp;;
+ ipv4_udp|udp) ipv4_udp;;
+ ipv4_bind|bind) ipv4_addr_bind;;
+ ipv4_runtime) ipv4_runtime;;
+ ipv4_netfilter) ipv4_netfilter;;
+
+ ipv6_ping|ping6) ipv6_ping;;
+ ipv6_tcp|tcp6) ipv6_tcp;;
+ ipv6_udp|udp6) ipv6_udp;;
+ ipv6_bind|bind6) ipv6_addr_bind;;
+ ipv6_runtime) ipv6_runtime;;
+ ipv6_netfilter) ipv6_netfilter;;
+
+ use_cases) use_cases;;
+
+ # setup namespaces and config, but do not run any tests
+ setup) setup; exit 0;;
+ vrf_setup) setup "yes"; exit 0;;
+
+ help) echo "Test names: $TESTS"; exit 0;;
+ esac
+done
+
+cleanup 2>/dev/null
+
+printf "\nTests passed: %3d\n" ${nsuccess}
+printf "Tests failed: %3d\n" ${nfail}
diff --git a/tools/testing/selftests/net/fib-onlink-tests.sh b/tools/testing/selftests/net/fib-onlink-tests.sh
new file mode 100755
index 000000000..c287b90b8
--- /dev/null
+++ b/tools/testing/selftests/net/fib-onlink-tests.sh
@@ -0,0 +1,505 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# IPv4 and IPv6 onlink tests
+
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+VERBOSE=0
+
+# Network interfaces
+# - odd in current namespace; even in peer ns
+declare -A NETIFS
+# default VRF
+NETIFS[p1]=veth1
+NETIFS[p2]=veth2
+NETIFS[p3]=veth3
+NETIFS[p4]=veth4
+# VRF
+NETIFS[p5]=veth5
+NETIFS[p6]=veth6
+NETIFS[p7]=veth7
+NETIFS[p8]=veth8
+
+# /24 network
+declare -A V4ADDRS
+V4ADDRS[p1]=169.254.1.1
+V4ADDRS[p2]=169.254.1.2
+V4ADDRS[p3]=169.254.3.1
+V4ADDRS[p4]=169.254.3.2
+V4ADDRS[p5]=169.254.5.1
+V4ADDRS[p6]=169.254.5.2
+V4ADDRS[p7]=169.254.7.1
+V4ADDRS[p8]=169.254.7.2
+
+# /64 network
+declare -A V6ADDRS
+V6ADDRS[p1]=2001:db8:101::1
+V6ADDRS[p2]=2001:db8:101::2
+V6ADDRS[p3]=2001:db8:301::1
+V6ADDRS[p4]=2001:db8:301::2
+V6ADDRS[p5]=2001:db8:501::1
+V6ADDRS[p6]=2001:db8:501::2
+V6ADDRS[p7]=2001:db8:701::1
+V6ADDRS[p8]=2001:db8:701::2
+
+# Test networks:
+# [1] = default table
+# [2] = VRF
+#
+# /32 host routes
+declare -A TEST_NET4
+TEST_NET4[1]=169.254.101
+TEST_NET4[2]=169.254.102
+# /128 host routes
+declare -A TEST_NET6
+TEST_NET6[1]=2001:db8:101
+TEST_NET6[2]=2001:db8:102
+
+# connected gateway
+CONGW[1]=169.254.1.254
+CONGW[2]=169.254.3.254
+CONGW[3]=169.254.5.254
+
+# recursive gateway
+RECGW4[1]=169.254.11.254
+RECGW4[2]=169.254.12.254
+RECGW6[1]=2001:db8:11::64
+RECGW6[2]=2001:db8:12::64
+
+# for v4 mapped to v6
+declare -A TEST_NET4IN6IN6
+TEST_NET4IN6[1]=10.1.1.254
+TEST_NET4IN6[2]=10.2.1.254
+
+# mcast address
+MCAST6=ff02::1
+
+
+PEER_NS=bart
+PEER_CMD="ip netns exec ${PEER_NS}"
+VRF=lisa
+VRF_TABLE=1101
+PBR_TABLE=101
+
+################################################################################
+# utilities
+
+log_test()
+{
+ local rc=$1
+ local expected=$2
+ local msg="$3"
+
+ if [ ${rc} -eq ${expected} ]; then
+ nsuccess=$((nsuccess+1))
+ printf " TEST: %-50s [ OK ]\n" "${msg}"
+ else
+ nfail=$((nfail+1))
+ printf " TEST: %-50s [FAIL]\n" "${msg}"
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+ fi
+}
+
+log_section()
+{
+ echo
+ echo "######################################################################"
+ echo "TEST SECTION: $*"
+ echo "######################################################################"
+}
+
+log_subsection()
+{
+ echo
+ echo "#########################################"
+ echo "TEST SUBSECTION: $*"
+}
+
+run_cmd()
+{
+ local cmd="$*"
+ local out
+ local rc
+
+ if [ "$VERBOSE" = "1" ]; then
+ printf " COMMAND: $cmd\n"
+ fi
+
+ out=$(eval $cmd 2>&1)
+ rc=$?
+ if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+ echo " $out"
+ fi
+
+ [ "$VERBOSE" = "1" ] && echo
+
+ return $rc
+}
+
+get_linklocal()
+{
+ local dev=$1
+ local pfx
+ local addr
+
+ addr=$(${pfx} ip -6 -br addr show dev ${dev} | \
+ awk '{
+ for (i = 3; i <= NF; ++i) {
+ if ($i ~ /^fe80/)
+ print $i
+ }
+ }'
+ )
+ addr=${addr/\/*}
+
+ [ -z "$addr" ] && return 1
+
+ echo $addr
+
+ return 0
+}
+
+################################################################################
+#
+
+setup()
+{
+ echo
+ echo "########################################"
+ echo "Configuring interfaces"
+
+ set -e
+
+ # create namespace
+ ip netns add ${PEER_NS}
+ ip -netns ${PEER_NS} li set lo up
+
+ # add vrf table
+ ip li add ${VRF} type vrf table ${VRF_TABLE}
+ ip li set ${VRF} up
+ ip ro add table ${VRF_TABLE} unreachable default metric 8192
+ ip -6 ro add table ${VRF_TABLE} unreachable default metric 8192
+
+ # create test interfaces
+ ip li add ${NETIFS[p1]} type veth peer name ${NETIFS[p2]}
+ ip li add ${NETIFS[p3]} type veth peer name ${NETIFS[p4]}
+ ip li add ${NETIFS[p5]} type veth peer name ${NETIFS[p6]}
+ ip li add ${NETIFS[p7]} type veth peer name ${NETIFS[p8]}
+
+ # enslave vrf interfaces
+ for n in 5 7; do
+ ip li set ${NETIFS[p${n}]} vrf ${VRF}
+ done
+
+ # add addresses
+ for n in 1 3 5 7; do
+ ip li set ${NETIFS[p${n}]} up
+ ip addr add ${V4ADDRS[p${n}]}/24 dev ${NETIFS[p${n}]}
+ ip addr add ${V6ADDRS[p${n}]}/64 dev ${NETIFS[p${n}]} nodad
+ done
+
+ # move peer interfaces to namespace and add addresses
+ for n in 2 4 6 8; do
+ ip li set ${NETIFS[p${n}]} netns ${PEER_NS} up
+ ip -netns ${PEER_NS} addr add ${V4ADDRS[p${n}]}/24 dev ${NETIFS[p${n}]}
+ ip -netns ${PEER_NS} addr add ${V6ADDRS[p${n}]}/64 dev ${NETIFS[p${n}]} nodad
+ done
+
+ ip -6 ro add default via ${V6ADDRS[p3]/::[0-9]/::64}
+ ip -6 ro add table ${VRF_TABLE} default via ${V6ADDRS[p7]/::[0-9]/::64}
+
+ set +e
+}
+
+cleanup()
+{
+ # make sure we start from a clean slate
+ ip netns del ${PEER_NS} 2>/dev/null
+ for n in 1 3 5 7; do
+ ip link del ${NETIFS[p${n}]} 2>/dev/null
+ done
+ ip link del ${VRF} 2>/dev/null
+ ip ro flush table ${VRF_TABLE}
+ ip -6 ro flush table ${VRF_TABLE}
+}
+
+################################################################################
+# IPv4 tests
+#
+
+run_ip()
+{
+ local table="$1"
+ local prefix="$2"
+ local gw="$3"
+ local dev="$4"
+ local exp_rc="$5"
+ local desc="$6"
+
+ # dev arg may be empty
+ [ -n "${dev}" ] && dev="dev ${dev}"
+
+ run_cmd ip ro add table "${table}" "${prefix}"/32 via "${gw}" "${dev}" onlink
+ log_test $? ${exp_rc} "${desc}"
+}
+
+run_ip_mpath()
+{
+ local table="$1"
+ local prefix="$2"
+ local nh1="$3"
+ local nh2="$4"
+ local exp_rc="$5"
+ local desc="$6"
+
+ # dev arg may be empty
+ [ -n "${dev}" ] && dev="dev ${dev}"
+
+ run_cmd ip ro add table "${table}" "${prefix}"/32 \
+ nexthop via ${nh1} nexthop via ${nh2}
+ log_test $? ${exp_rc} "${desc}"
+}
+
+valid_onlink_ipv4()
+{
+ # - unicast connected, unicast recursive
+ #
+ log_subsection "default VRF - main table"
+
+ run_ip 254 ${TEST_NET4[1]}.1 ${CONGW[1]} ${NETIFS[p1]} 0 "unicast connected"
+ run_ip 254 ${TEST_NET4[1]}.2 ${RECGW4[1]} ${NETIFS[p1]} 0 "unicast recursive"
+
+ log_subsection "VRF ${VRF}"
+
+ run_ip ${VRF_TABLE} ${TEST_NET4[2]}.1 ${CONGW[3]} ${NETIFS[p5]} 0 "unicast connected"
+ run_ip ${VRF_TABLE} ${TEST_NET4[2]}.2 ${RECGW4[2]} ${NETIFS[p5]} 0 "unicast recursive"
+
+ log_subsection "VRF device, PBR table"
+
+ run_ip ${PBR_TABLE} ${TEST_NET4[2]}.3 ${CONGW[3]} ${NETIFS[p5]} 0 "unicast connected"
+ run_ip ${PBR_TABLE} ${TEST_NET4[2]}.4 ${RECGW4[2]} ${NETIFS[p5]} 0 "unicast recursive"
+
+ # multipath version
+ #
+ log_subsection "default VRF - main table - multipath"
+
+ run_ip_mpath 254 ${TEST_NET4[1]}.5 \
+ "${CONGW[1]} dev ${NETIFS[p1]} onlink" \
+ "${CONGW[2]} dev ${NETIFS[p3]} onlink" \
+ 0 "unicast connected - multipath"
+
+ run_ip_mpath 254 ${TEST_NET4[1]}.6 \
+ "${RECGW4[1]} dev ${NETIFS[p1]} onlink" \
+ "${RECGW4[2]} dev ${NETIFS[p3]} onlink" \
+ 0 "unicast recursive - multipath"
+
+ run_ip_mpath 254 ${TEST_NET4[1]}.7 \
+ "${CONGW[1]} dev ${NETIFS[p1]}" \
+ "${CONGW[2]} dev ${NETIFS[p3]} onlink" \
+ 0 "unicast connected - multipath onlink first only"
+
+ run_ip_mpath 254 ${TEST_NET4[1]}.8 \
+ "${CONGW[1]} dev ${NETIFS[p1]} onlink" \
+ "${CONGW[2]} dev ${NETIFS[p3]}" \
+ 0 "unicast connected - multipath onlink second only"
+}
+
+invalid_onlink_ipv4()
+{
+ run_ip 254 ${TEST_NET4[1]}.11 ${V4ADDRS[p1]} ${NETIFS[p1]} 2 \
+ "Invalid gw - local unicast address"
+
+ run_ip ${VRF_TABLE} ${TEST_NET4[2]}.11 ${V4ADDRS[p5]} ${NETIFS[p5]} 2 \
+ "Invalid gw - local unicast address, VRF"
+
+ run_ip 254 ${TEST_NET4[1]}.101 ${V4ADDRS[p1]} "" 2 "No nexthop device given"
+
+ run_ip 254 ${TEST_NET4[1]}.102 ${V4ADDRS[p3]} ${NETIFS[p1]} 2 \
+ "Gateway resolves to wrong nexthop device"
+
+ run_ip ${VRF_TABLE} ${TEST_NET4[2]}.103 ${V4ADDRS[p7]} ${NETIFS[p5]} 2 \
+ "Gateway resolves to wrong nexthop device - VRF"
+}
+
+################################################################################
+# IPv6 tests
+#
+
+run_ip6()
+{
+ local table="$1"
+ local prefix="$2"
+ local gw="$3"
+ local dev="$4"
+ local exp_rc="$5"
+ local desc="$6"
+
+ # dev arg may be empty
+ [ -n "${dev}" ] && dev="dev ${dev}"
+
+ run_cmd ip -6 ro add table "${table}" "${prefix}"/128 via "${gw}" "${dev}" onlink
+ log_test $? ${exp_rc} "${desc}"
+}
+
+run_ip6_mpath()
+{
+ local table="$1"
+ local prefix="$2"
+ local opts="$3"
+ local nh1="$4"
+ local nh2="$5"
+ local exp_rc="$6"
+ local desc="$7"
+
+ run_cmd ip -6 ro add table "${table}" "${prefix}"/128 "${opts}" \
+ nexthop via ${nh1} nexthop via ${nh2}
+ log_test $? ${exp_rc} "${desc}"
+}
+
+valid_onlink_ipv6()
+{
+ # - unicast connected, unicast recursive, v4-mapped
+ #
+ log_subsection "default VRF - main table"
+
+ run_ip6 254 ${TEST_NET6[1]}::1 ${V6ADDRS[p1]/::*}::64 ${NETIFS[p1]} 0 "unicast connected"
+ run_ip6 254 ${TEST_NET6[1]}::2 ${RECGW6[1]} ${NETIFS[p1]} 0 "unicast recursive"
+ run_ip6 254 ${TEST_NET6[1]}::3 ::ffff:${TEST_NET4IN6[1]} ${NETIFS[p1]} 0 "v4-mapped"
+
+ log_subsection "VRF ${VRF}"
+
+ run_ip6 ${VRF_TABLE} ${TEST_NET6[2]}::1 ${V6ADDRS[p5]/::*}::64 ${NETIFS[p5]} 0 "unicast connected"
+ run_ip6 ${VRF_TABLE} ${TEST_NET6[2]}::2 ${RECGW6[2]} ${NETIFS[p5]} 0 "unicast recursive"
+ run_ip6 ${VRF_TABLE} ${TEST_NET6[2]}::3 ::ffff:${TEST_NET4IN6[2]} ${NETIFS[p5]} 0 "v4-mapped"
+
+ log_subsection "VRF device, PBR table"
+
+ run_ip6 ${PBR_TABLE} ${TEST_NET6[2]}::4 ${V6ADDRS[p5]/::*}::64 ${NETIFS[p5]} 0 "unicast connected"
+ run_ip6 ${PBR_TABLE} ${TEST_NET6[2]}::5 ${RECGW6[2]} ${NETIFS[p5]} 0 "unicast recursive"
+ run_ip6 ${PBR_TABLE} ${TEST_NET6[2]}::6 ::ffff:${TEST_NET4IN6[2]} ${NETIFS[p5]} 0 "v4-mapped"
+
+ # multipath version
+ #
+ log_subsection "default VRF - main table - multipath"
+
+ run_ip6_mpath 254 ${TEST_NET6[1]}::4 "onlink" \
+ "${V6ADDRS[p1]/::*}::64 dev ${NETIFS[p1]}" \
+ "${V6ADDRS[p3]/::*}::64 dev ${NETIFS[p3]}" \
+ 0 "unicast connected - multipath onlink"
+
+ run_ip6_mpath 254 ${TEST_NET6[1]}::5 "onlink" \
+ "${RECGW6[1]} dev ${NETIFS[p1]}" \
+ "${RECGW6[2]} dev ${NETIFS[p3]}" \
+ 0 "unicast recursive - multipath onlink"
+
+ run_ip6_mpath 254 ${TEST_NET6[1]}::6 "onlink" \
+ "::ffff:${TEST_NET4IN6[1]} dev ${NETIFS[p1]}" \
+ "::ffff:${TEST_NET4IN6[2]} dev ${NETIFS[p3]}" \
+ 0 "v4-mapped - multipath onlink"
+
+ run_ip6_mpath 254 ${TEST_NET6[1]}::7 "" \
+ "${V6ADDRS[p1]/::*}::64 dev ${NETIFS[p1]} onlink" \
+ "${V6ADDRS[p3]/::*}::64 dev ${NETIFS[p3]} onlink" \
+ 0 "unicast connected - multipath onlink both nexthops"
+
+ run_ip6_mpath 254 ${TEST_NET6[1]}::8 "" \
+ "${V6ADDRS[p1]/::*}::64 dev ${NETIFS[p1]} onlink" \
+ "${V6ADDRS[p3]/::*}::64 dev ${NETIFS[p3]}" \
+ 0 "unicast connected - multipath onlink first only"
+
+ run_ip6_mpath 254 ${TEST_NET6[1]}::9 "" \
+ "${V6ADDRS[p1]/::*}::64 dev ${NETIFS[p1]}" \
+ "${V6ADDRS[p3]/::*}::64 dev ${NETIFS[p3]} onlink" \
+ 0 "unicast connected - multipath onlink second only"
+}
+
+invalid_onlink_ipv6()
+{
+ local lladdr
+
+ lladdr=$(get_linklocal ${NETIFS[p1]}) || return 1
+
+ run_ip6 254 ${TEST_NET6[1]}::11 ${V6ADDRS[p1]} ${NETIFS[p1]} 2 \
+ "Invalid gw - local unicast address"
+ run_ip6 254 ${TEST_NET6[1]}::12 ${lladdr} ${NETIFS[p1]} 2 \
+ "Invalid gw - local linklocal address"
+ run_ip6 254 ${TEST_NET6[1]}::12 ${MCAST6} ${NETIFS[p1]} 2 \
+ "Invalid gw - multicast address"
+
+ lladdr=$(get_linklocal ${NETIFS[p5]}) || return 1
+ run_ip6 ${VRF_TABLE} ${TEST_NET6[2]}::11 ${V6ADDRS[p5]} ${NETIFS[p5]} 2 \
+ "Invalid gw - local unicast address, VRF"
+ run_ip6 ${VRF_TABLE} ${TEST_NET6[2]}::12 ${lladdr} ${NETIFS[p5]} 2 \
+ "Invalid gw - local linklocal address, VRF"
+ run_ip6 ${VRF_TABLE} ${TEST_NET6[2]}::12 ${MCAST6} ${NETIFS[p5]} 2 \
+ "Invalid gw - multicast address, VRF"
+
+ run_ip6 254 ${TEST_NET6[1]}::101 ${V6ADDRS[p1]} "" 2 \
+ "No nexthop device given"
+
+ # default VRF validation is done against LOCAL table
+ # run_ip6 254 ${TEST_NET6[1]}::102 ${V6ADDRS[p3]/::[0-9]/::64} ${NETIFS[p1]} 2 \
+ # "Gateway resolves to wrong nexthop device"
+
+ run_ip6 ${VRF_TABLE} ${TEST_NET6[2]}::103 ${V6ADDRS[p7]/::[0-9]/::64} ${NETIFS[p5]} 2 \
+ "Gateway resolves to wrong nexthop device - VRF"
+}
+
+run_onlink_tests()
+{
+ log_section "IPv4 onlink"
+ log_subsection "Valid onlink commands"
+ valid_onlink_ipv4
+ log_subsection "Invalid onlink commands"
+ invalid_onlink_ipv4
+
+ log_section "IPv6 onlink"
+ log_subsection "Valid onlink commands"
+ valid_onlink_ipv6
+ log_subsection "Invalid onlink commands"
+ invalid_onlink_ipv6
+}
+
+################################################################################
+# usage
+
+usage()
+{
+ cat <<EOF
+usage: ${0##*/} OPTS
+
+ -p Pause on fail
+ -v verbose mode (show commands and output)
+EOF
+}
+
+################################################################################
+# main
+
+nsuccess=0
+nfail=0
+
+while getopts :t:pPhv o
+do
+ case $o in
+ p) PAUSE_ON_FAIL=yes;;
+ v) VERBOSE=$(($VERBOSE + 1));;
+ h) usage; exit 0;;
+ *) usage; exit 1;;
+ esac
+done
+
+cleanup
+setup
+run_onlink_tests
+cleanup
+
+if [ "$TESTS" != "none" ]; then
+ printf "\nTests passed: %3d\n" ${nsuccess}
+ printf "Tests failed: %3d\n" ${nfail}
+fi
diff --git a/tools/testing/selftests/net/fib_nexthop_multiprefix.sh b/tools/testing/selftests/net/fib_nexthop_multiprefix.sh
new file mode 100755
index 000000000..b52d59547
--- /dev/null
+++ b/tools/testing/selftests/net/fib_nexthop_multiprefix.sh
@@ -0,0 +1,292 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Validate cached routes in fib{6}_nh that is used by multiple prefixes.
+# Validate a different # exception is generated in h0 for each remote host.
+#
+# h1
+# /
+# h0 - r1 - h2
+# \
+# h3
+#
+# routing in h0 to hN is done with nexthop objects.
+
+PAUSE_ON_FAIL=no
+VERBOSE=0
+
+which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
+
+################################################################################
+# helpers
+
+log_test()
+{
+ local rc=$1
+ local expected=$2
+ local msg="$3"
+
+ if [ ${rc} -eq ${expected} ]; then
+ printf "TEST: %-60s [ OK ]\n" "${msg}"
+ nsuccess=$((nsuccess+1))
+ else
+ ret=1
+ nfail=$((nfail+1))
+ printf "TEST: %-60s [FAIL]\n" "${msg}"
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+ fi
+
+ [ "$VERBOSE" = "1" ] && echo
+}
+
+run_cmd()
+{
+ local cmd="$*"
+ local out
+ local rc
+
+ if [ "$VERBOSE" = "1" ]; then
+ echo "COMMAND: $cmd"
+ fi
+
+ out=$(eval $cmd 2>&1)
+ rc=$?
+ if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+ echo "$out"
+ fi
+
+ [ "$VERBOSE" = "1" ] && echo
+
+ return $rc
+}
+
+################################################################################
+# config
+
+create_ns()
+{
+ local ns=${1}
+
+ ip netns del ${ns} 2>/dev/null
+
+ ip netns add ${ns}
+ ip -netns ${ns} addr add 127.0.0.1/8 dev lo
+ ip -netns ${ns} link set lo up
+
+ ip netns exec ${ns} sysctl -q -w net.ipv6.conf.all.keep_addr_on_down=1
+ case ${ns} in
+ h*)
+ ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=0
+ ;;
+ r*)
+ ip netns exec $ns sysctl -q -w net.ipv4.ip_forward=1
+ ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=1
+ ;;
+ esac
+}
+
+setup()
+{
+ local ns
+ local i
+
+ #set -e
+
+ for ns in h0 r1 h1 h2 h3
+ do
+ create_ns ${ns}
+ done
+
+ #
+ # create interconnects
+ #
+
+ for i in 0 1 2 3
+ do
+ ip -netns h${i} li add eth0 type veth peer name r1h${i}
+ ip -netns h${i} li set eth0 up
+ ip -netns h${i} li set r1h${i} netns r1 name eth${i} up
+
+ ip -netns h${i} addr add dev eth0 172.16.10${i}.1/24
+ ip -netns h${i} -6 addr add dev eth0 2001:db8:10${i}::1/64
+ ip -netns r1 addr add dev eth${i} 172.16.10${i}.254/24
+ ip -netns r1 -6 addr add dev eth${i} 2001:db8:10${i}::64/64
+ done
+
+ ip -netns h0 nexthop add id 4 via 172.16.100.254 dev eth0
+ ip -netns h0 nexthop add id 6 via 2001:db8:100::64 dev eth0
+
+ # routing from h0 to h1-h3 and back
+ for i in 1 2 3
+ do
+ ip -netns h0 ro add 172.16.10${i}.0/24 nhid 4
+ ip -netns h${i} ro add 172.16.100.0/24 via 172.16.10${i}.254
+
+ ip -netns h0 -6 ro add 2001:db8:10${i}::/64 nhid 6
+ ip -netns h${i} -6 ro add 2001:db8:100::/64 via 2001:db8:10${i}::64
+ done
+
+ if [ "$VERBOSE" = "1" ]; then
+ echo
+ echo "host 1 config"
+ ip -netns h0 li sh
+ ip -netns h0 ro sh
+ ip -netns h0 -6 ro sh
+ fi
+
+ #set +e
+}
+
+cleanup()
+{
+ for n in h0 r1 h1 h2 h3
+ do
+ ip netns del ${n} 2>/dev/null
+ done
+}
+
+change_mtu()
+{
+ local hostid=$1
+ local mtu=$2
+
+ run_cmd ip -netns h${hostid} li set eth0 mtu ${mtu}
+ run_cmd ip -netns r1 li set eth${hostid} mtu ${mtu}
+}
+
+################################################################################
+# validate exceptions
+
+validate_v4_exception()
+{
+ local i=$1
+ local mtu=$2
+ local ping_sz=$3
+ local dst="172.16.10${i}.1"
+ local h0=172.16.100.1
+ local r1=172.16.100.254
+ local rc
+
+ if [ ${ping_sz} != "0" ]; then
+ run_cmd ip netns exec h0 ping -s ${ping_sz} -c5 -w5 ${dst}
+ fi
+
+ if [ "$VERBOSE" = "1" ]; then
+ echo "Route get"
+ ip -netns h0 ro get ${dst}
+ echo "Searching for:"
+ echo " cache .* mtu ${mtu}"
+ echo
+ fi
+
+ ip -netns h0 ro get ${dst} | \
+ grep -q "cache .* mtu ${mtu}"
+ rc=$?
+
+ log_test $rc 0 "IPv4: host 0 to host ${i}, mtu ${mtu}"
+}
+
+validate_v6_exception()
+{
+ local i=$1
+ local mtu=$2
+ local ping_sz=$3
+ local dst="2001:db8:10${i}::1"
+ local h0=2001:db8:100::1
+ local r1=2001:db8:100::64
+ local rc
+
+ if [ ${ping_sz} != "0" ]; then
+ run_cmd ip netns exec h0 ${ping6} -s ${ping_sz} -c5 -w5 ${dst}
+ fi
+
+ if [ "$VERBOSE" = "1" ]; then
+ echo "Route get"
+ ip -netns h0 -6 ro get ${dst}
+ echo "Searching for:"
+ echo " ${dst}.* via ${r1} dev eth0 src ${h0} .* mtu ${mtu}"
+ echo
+ fi
+
+ ip -netns h0 -6 ro get ${dst} | \
+ grep -q "${dst}.* via ${r1} dev eth0 src ${h0} .* mtu ${mtu}"
+ rc=$?
+
+ log_test $rc 0 "IPv6: host 0 to host ${i}, mtu ${mtu}"
+}
+
+################################################################################
+# main
+
+while getopts :pv o
+do
+ case $o in
+ p) PAUSE_ON_FAIL=yes;;
+ v) VERBOSE=1;;
+ esac
+done
+
+cleanup
+setup
+sleep 2
+
+cpus=$(cat /sys/devices/system/cpu/online)
+cpus="$(seq ${cpus/-/ })"
+ret=0
+for i in 1 2 3
+do
+ # generate a cached route per-cpu
+ for c in ${cpus}; do
+ run_cmd taskset -c ${c} ip netns exec h0 ping -c1 -w1 172.16.10${i}.1
+ [ $? -ne 0 ] && printf "\nERROR: ping to h${i} failed\n" && ret=1
+
+ run_cmd taskset -c ${c} ip netns exec h0 ${ping6} -c1 -w1 2001:db8:10${i}::1
+ [ $? -ne 0 ] && printf "\nERROR: ping6 to h${i} failed\n" && ret=1
+
+ [ $ret -ne 0 ] && break
+ done
+ [ $ret -ne 0 ] && break
+done
+
+if [ $ret -eq 0 ]; then
+ # generate different exceptions in h0 for h1, h2 and h3
+ change_mtu 1 1300
+ validate_v4_exception 1 1300 1350
+ validate_v6_exception 1 1300 1350
+ echo
+
+ change_mtu 2 1350
+ validate_v4_exception 2 1350 1400
+ validate_v6_exception 2 1350 1400
+ echo
+
+ change_mtu 3 1400
+ validate_v4_exception 3 1400 1450
+ validate_v6_exception 3 1400 1450
+ echo
+
+ validate_v4_exception 1 1300 0
+ validate_v6_exception 1 1300 0
+ echo
+
+ validate_v4_exception 2 1350 0
+ validate_v6_exception 2 1350 0
+ echo
+
+ validate_v4_exception 3 1400 0
+ validate_v6_exception 3 1400 0
+
+ # targeted deletes to trigger cleanup paths in kernel
+ ip -netns h0 ro del 172.16.102.0/24 nhid 4
+ ip -netns h0 -6 ro del 2001:db8:102::/64 nhid 6
+
+ ip -netns h0 nexthop del id 4
+ ip -netns h0 nexthop del id 6
+fi
+
+cleanup
diff --git a/tools/testing/selftests/net/fib_nexthops.sh b/tools/testing/selftests/net/fib_nexthops.sh
new file mode 100755
index 000000000..7ece4131d
--- /dev/null
+++ b/tools/testing/selftests/net/fib_nexthops.sh
@@ -0,0 +1,1696 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# ns: me | ns: peer | ns: remote
+# 2001:db8:91::1 | 2001:db8:91::2 |
+# 172.16.1.1 | 172.16.1.2 |
+# veth1 <---|---> veth2 |
+# | veth5 <--|--> veth6 172.16.101.1
+# veth3 <---|---> veth4 | 2001:db8:101::1
+# 172.16.2.1 | 172.16.2.2 |
+# 2001:db8:92::1 | 2001:db8:92::2 |
+#
+# This test is for checking IPv4 and IPv6 FIB behavior with nexthop
+# objects. Device reference counts and network namespace cleanup tested
+# by use of network namespace for peer.
+
+ret=0
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+# all tests in this script. Can be overridden with -t option
+IPV4_TESTS="ipv4_fcnal ipv4_grp_fcnal ipv4_withv6_fcnal ipv4_fcnal_runtime ipv4_large_grp ipv4_compat_mode ipv4_fdb_grp_fcnal ipv4_torture"
+IPV6_TESTS="ipv6_fcnal ipv6_grp_fcnal ipv6_fcnal_runtime ipv6_large_grp ipv6_compat_mode ipv6_fdb_grp_fcnal ipv6_torture"
+
+ALL_TESTS="basic ${IPV4_TESTS} ${IPV6_TESTS}"
+TESTS="${ALL_TESTS}"
+VERBOSE=0
+PAUSE_ON_FAIL=no
+PAUSE=no
+
+nsid=100
+
+################################################################################
+# utilities
+
+log_test()
+{
+ local rc=$1
+ local expected=$2
+ local msg="$3"
+
+ if [ ${rc} -eq ${expected} ]; then
+ printf "TEST: %-60s [ OK ]\n" "${msg}"
+ nsuccess=$((nsuccess+1))
+ else
+ ret=1
+ nfail=$((nfail+1))
+ printf "TEST: %-60s [FAIL]\n" "${msg}"
+ if [ "$VERBOSE" = "1" ]; then
+ echo " rc=$rc, expected $expected"
+ fi
+
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+ fi
+
+ if [ "${PAUSE}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+
+ [ "$VERBOSE" = "1" ] && echo
+}
+
+run_cmd()
+{
+ local cmd="$1"
+ local out
+ local stderr="2>/dev/null"
+
+ if [ "$VERBOSE" = "1" ]; then
+ printf "COMMAND: $cmd\n"
+ stderr=
+ fi
+
+ out=$(eval $cmd $stderr)
+ rc=$?
+ if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+ echo " $out"
+ fi
+
+ return $rc
+}
+
+get_linklocal()
+{
+ local dev=$1
+ local ns
+ local addr
+
+ [ -n "$2" ] && ns="-netns $2"
+ addr=$(ip $ns -6 -br addr show dev ${dev} | \
+ awk '{
+ for (i = 3; i <= NF; ++i) {
+ if ($i ~ /^fe80/)
+ print $i
+ }
+ }'
+ )
+ addr=${addr/\/*}
+
+ [ -z "$addr" ] && return 1
+
+ echo $addr
+
+ return 0
+}
+
+create_ns()
+{
+ local n=${1}
+
+ ip netns del ${n} 2>/dev/null
+
+ set -e
+ ip netns add ${n}
+ ip netns set ${n} $((nsid++))
+ ip -netns ${n} addr add 127.0.0.1/8 dev lo
+ ip -netns ${n} link set lo up
+
+ ip netns exec ${n} sysctl -qw net.ipv4.ip_forward=1
+ ip netns exec ${n} sysctl -qw net.ipv4.fib_multipath_use_neigh=1
+ ip netns exec ${n} sysctl -qw net.ipv4.conf.default.ignore_routes_with_linkdown=1
+ ip netns exec ${n} sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
+ ip netns exec ${n} sysctl -qw net.ipv6.conf.all.forwarding=1
+ ip netns exec ${n} sysctl -qw net.ipv6.conf.default.forwarding=1
+ ip netns exec ${n} sysctl -qw net.ipv6.conf.default.ignore_routes_with_linkdown=1
+ ip netns exec ${n} sysctl -qw net.ipv6.conf.all.accept_dad=0
+ ip netns exec ${n} sysctl -qw net.ipv6.conf.default.accept_dad=0
+
+ set +e
+}
+
+setup()
+{
+ cleanup
+
+ create_ns me
+ create_ns peer
+ create_ns remote
+
+ IP="ip -netns me"
+ BRIDGE="bridge -netns me"
+ set -e
+ $IP li add veth1 type veth peer name veth2
+ $IP li set veth1 up
+ $IP addr add 172.16.1.1/24 dev veth1
+ $IP -6 addr add 2001:db8:91::1/64 dev veth1 nodad
+
+ $IP li add veth3 type veth peer name veth4
+ $IP li set veth3 up
+ $IP addr add 172.16.2.1/24 dev veth3
+ $IP -6 addr add 2001:db8:92::1/64 dev veth3 nodad
+
+ $IP li set veth2 netns peer up
+ ip -netns peer addr add 172.16.1.2/24 dev veth2
+ ip -netns peer -6 addr add 2001:db8:91::2/64 dev veth2 nodad
+
+ $IP li set veth4 netns peer up
+ ip -netns peer addr add 172.16.2.2/24 dev veth4
+ ip -netns peer -6 addr add 2001:db8:92::2/64 dev veth4 nodad
+
+ ip -netns remote li add veth5 type veth peer name veth6
+ ip -netns remote li set veth5 up
+ ip -netns remote addr add dev veth5 172.16.101.1/24
+ ip -netns remote -6 addr add dev veth5 2001:db8:101::1/64 nodad
+ ip -netns remote ro add 172.16.0.0/22 via 172.16.101.2
+ ip -netns remote -6 ro add 2001:db8:90::/40 via 2001:db8:101::2
+
+ ip -netns remote li set veth6 netns peer up
+ ip -netns peer addr add dev veth6 172.16.101.2/24
+ ip -netns peer -6 addr add dev veth6 2001:db8:101::2/64 nodad
+ set +e
+}
+
+cleanup()
+{
+ local ns
+
+ for ns in me peer remote; do
+ ip netns del ${ns} 2>/dev/null
+ done
+}
+
+check_output()
+{
+ local out="$1"
+ local expected="$2"
+ local rc=0
+
+ [ "${out}" = "${expected}" ] && return 0
+
+ if [ -z "${out}" ]; then
+ if [ "$VERBOSE" = "1" ]; then
+ printf "\nNo entry found\n"
+ printf "Expected:\n"
+ printf " ${expected}\n"
+ fi
+ return 1
+ fi
+
+ out=$(echo ${out})
+ if [ "${out}" != "${expected}" ]; then
+ rc=1
+ if [ "${VERBOSE}" = "1" ]; then
+ printf " Unexpected entry. Have:\n"
+ printf " ${out}\n"
+ printf " Expected:\n"
+ printf " ${expected}\n\n"
+ else
+ echo " WARNING: Unexpected route entry"
+ fi
+ fi
+
+ return $rc
+}
+
+check_nexthop()
+{
+ local nharg="$1"
+ local expected="$2"
+ local out
+
+ out=$($IP nexthop ls ${nharg} 2>/dev/null)
+
+ check_output "${out}" "${expected}"
+}
+
+check_route()
+{
+ local pfx="$1"
+ local expected="$2"
+ local out
+
+ out=$($IP route ls match ${pfx} 2>/dev/null)
+
+ check_output "${out}" "${expected}"
+}
+
+check_route6()
+{
+ local pfx="$1"
+ local expected="$2"
+ local out
+
+ out=$($IP -6 route ls match ${pfx} 2>/dev/null | sed -e 's/pref medium//')
+
+ check_output "${out}" "${expected}"
+}
+
+check_large_grp()
+{
+ local ipv=$1
+ local ecmp=$2
+ local grpnum=100
+ local nhidstart=100
+ local grpidstart=1000
+ local iter=0
+ local nhidstr=""
+ local grpidstr=""
+ local grpstr=""
+ local ipstr=""
+
+ if [ $ipv -eq 4 ]; then
+ ipstr="172.16.1."
+ else
+ ipstr="2001:db8:91::"
+ fi
+
+ #
+ # Create $grpnum groups with specified $ecmp and dump them
+ #
+
+ # create nexthops with different gateways
+ iter=2
+ while [ $iter -le $(($ecmp + 1)) ]
+ do
+ nhidstr="$(($nhidstart + $iter))"
+ run_cmd "$IP nexthop add id $nhidstr via $ipstr$iter dev veth1"
+ check_nexthop "id $nhidstr" "id $nhidstr via $ipstr$iter dev veth1 scope link"
+
+ if [ $iter -le $ecmp ]; then
+ grpstr+="$nhidstr/"
+ else
+ grpstr+="$nhidstr"
+ fi
+ ((iter++))
+ done
+
+ # create duplicate large ecmp groups
+ iter=0
+ while [ $iter -le $grpnum ]
+ do
+ grpidstr="$(($grpidstart + $iter))"
+ run_cmd "$IP nexthop add id $grpidstr group $grpstr"
+ check_nexthop "id $grpidstr" "id $grpidstr group $grpstr"
+ ((iter++))
+ done
+
+ # dump large groups
+ run_cmd "$IP nexthop list"
+ log_test $? 0 "Dump large (x$ecmp) ecmp groups"
+}
+
+start_ip_monitor()
+{
+ local mtype=$1
+
+ # start the monitor in the background
+ tmpfile=`mktemp /var/run/nexthoptestXXX`
+ mpid=`($IP monitor $mtype > $tmpfile & echo $!) 2>/dev/null`
+ sleep 0.2
+ echo "$mpid $tmpfile"
+}
+
+stop_ip_monitor()
+{
+ local mpid=$1
+ local tmpfile=$2
+ local el=$3
+
+ # check the monitor results
+ kill $mpid
+ lines=`wc -l $tmpfile | cut "-d " -f1`
+ test $lines -eq $el
+ rc=$?
+ rm -rf $tmpfile
+
+ return $rc
+}
+
+check_nexthop_fdb_support()
+{
+ $IP nexthop help 2>&1 | grep -q fdb
+ if [ $? -ne 0 ]; then
+ echo "SKIP: iproute2 too old, missing fdb nexthop support"
+ return $ksft_skip
+ fi
+}
+
+ipv6_fdb_grp_fcnal()
+{
+ local rc
+
+ echo
+ echo "IPv6 fdb groups functional"
+ echo "--------------------------"
+
+ check_nexthop_fdb_support
+ if [ $? -eq $ksft_skip ]; then
+ return $ksft_skip
+ fi
+
+ # create group with multiple nexthops
+ run_cmd "$IP nexthop add id 61 via 2001:db8:91::2 fdb"
+ run_cmd "$IP nexthop add id 62 via 2001:db8:91::3 fdb"
+ run_cmd "$IP nexthop add id 102 group 61/62 fdb"
+ check_nexthop "id 102" "id 102 group 61/62 fdb"
+ log_test $? 0 "Fdb Nexthop group with multiple nexthops"
+
+ ## get nexthop group
+ run_cmd "$IP nexthop get id 102"
+ check_nexthop "id 102" "id 102 group 61/62 fdb"
+ log_test $? 0 "Get Fdb nexthop group by id"
+
+ # fdb nexthop group can only contain fdb nexthops
+ run_cmd "$IP nexthop add id 63 via 2001:db8:91::4"
+ run_cmd "$IP nexthop add id 64 via 2001:db8:91::5"
+ run_cmd "$IP nexthop add id 103 group 63/64 fdb"
+ log_test $? 2 "Fdb Nexthop group with non-fdb nexthops"
+
+ # Non fdb nexthop group can not contain fdb nexthops
+ run_cmd "$IP nexthop add id 65 via 2001:db8:91::5 fdb"
+ run_cmd "$IP nexthop add id 66 via 2001:db8:91::6 fdb"
+ run_cmd "$IP nexthop add id 104 group 65/66"
+ log_test $? 2 "Non-Fdb Nexthop group with fdb nexthops"
+
+ # fdb nexthop cannot have blackhole
+ run_cmd "$IP nexthop add id 67 blackhole fdb"
+ log_test $? 2 "Fdb Nexthop with blackhole"
+
+ # fdb nexthop with oif
+ run_cmd "$IP nexthop add id 68 via 2001:db8:91::7 dev veth1 fdb"
+ log_test $? 2 "Fdb Nexthop with oif"
+
+ # fdb nexthop with onlink
+ run_cmd "$IP nexthop add id 68 via 2001:db8:91::7 onlink fdb"
+ log_test $? 2 "Fdb Nexthop with onlink"
+
+ # fdb nexthop with encap
+ run_cmd "$IP nexthop add id 69 encap mpls 101 via 2001:db8:91::8 dev veth1 fdb"
+ log_test $? 2 "Fdb Nexthop with encap"
+
+ run_cmd "$IP link add name vx10 type vxlan id 1010 local 2001:db8:91::9 remote 2001:db8:91::10 dstport 4789 nolearning noudpcsum tos inherit ttl 100"
+ run_cmd "$BRIDGE fdb add 02:02:00:00:00:13 dev vx10 nhid 102 self"
+ log_test $? 0 "Fdb mac add with nexthop group"
+
+ ## fdb nexthops can only reference nexthop groups and not nexthops
+ run_cmd "$BRIDGE fdb add 02:02:00:00:00:14 dev vx10 nhid 61 self"
+ log_test $? 255 "Fdb mac add with nexthop"
+
+ run_cmd "$IP -6 ro add 2001:db8:101::1/128 nhid 66"
+ log_test $? 2 "Route add with fdb nexthop"
+
+ run_cmd "$IP -6 ro add 2001:db8:101::1/128 nhid 103"
+ log_test $? 2 "Route add with fdb nexthop group"
+
+ run_cmd "$IP nexthop del id 61"
+ run_cmd "$BRIDGE fdb get to 02:02:00:00:00:13 dev vx10 self"
+ log_test $? 0 "Fdb entry after deleting a single nexthop"
+
+ run_cmd "$IP nexthop del id 102"
+ log_test $? 0 "Fdb nexthop delete"
+
+ run_cmd "$BRIDGE fdb get to 02:02:00:00:00:13 dev vx10 self"
+ log_test $? 254 "Fdb entry after deleting a nexthop group"
+
+ $IP link del dev vx10
+}
+
+ipv4_fdb_grp_fcnal()
+{
+ local rc
+
+ echo
+ echo "IPv4 fdb groups functional"
+ echo "--------------------------"
+
+ check_nexthop_fdb_support
+ if [ $? -eq $ksft_skip ]; then
+ return $ksft_skip
+ fi
+
+ # create group with multiple nexthops
+ run_cmd "$IP nexthop add id 12 via 172.16.1.2 fdb"
+ run_cmd "$IP nexthop add id 13 via 172.16.1.3 fdb"
+ run_cmd "$IP nexthop add id 102 group 12/13 fdb"
+ check_nexthop "id 102" "id 102 group 12/13 fdb"
+ log_test $? 0 "Fdb Nexthop group with multiple nexthops"
+
+ # get nexthop group
+ run_cmd "$IP nexthop get id 102"
+ check_nexthop "id 102" "id 102 group 12/13 fdb"
+ log_test $? 0 "Get Fdb nexthop group by id"
+
+ # fdb nexthop group can only contain fdb nexthops
+ run_cmd "$IP nexthop add id 14 via 172.16.1.2"
+ run_cmd "$IP nexthop add id 15 via 172.16.1.3"
+ run_cmd "$IP nexthop add id 103 group 14/15 fdb"
+ log_test $? 2 "Fdb Nexthop group with non-fdb nexthops"
+
+ # Non fdb nexthop group can not contain fdb nexthops
+ run_cmd "$IP nexthop add id 16 via 172.16.1.2 fdb"
+ run_cmd "$IP nexthop add id 17 via 172.16.1.3 fdb"
+ run_cmd "$IP nexthop add id 104 group 14/15"
+ log_test $? 2 "Non-Fdb Nexthop group with fdb nexthops"
+
+ # fdb nexthop cannot have blackhole
+ run_cmd "$IP nexthop add id 18 blackhole fdb"
+ log_test $? 2 "Fdb Nexthop with blackhole"
+
+ # fdb nexthop with oif
+ run_cmd "$IP nexthop add id 16 via 172.16.1.2 dev veth1 fdb"
+ log_test $? 2 "Fdb Nexthop with oif"
+
+ # fdb nexthop with onlink
+ run_cmd "$IP nexthop add id 16 via 172.16.1.2 onlink fdb"
+ log_test $? 2 "Fdb Nexthop with onlink"
+
+ # fdb nexthop with encap
+ run_cmd "$IP nexthop add id 17 encap mpls 101 via 172.16.1.2 dev veth1 fdb"
+ log_test $? 2 "Fdb Nexthop with encap"
+
+ run_cmd "$IP link add name vx10 type vxlan id 1010 local 10.0.0.1 remote 10.0.0.2 dstport 4789 nolearning noudpcsum tos inherit ttl 100"
+ run_cmd "$BRIDGE fdb add 02:02:00:00:00:13 dev vx10 nhid 102 self"
+ log_test $? 0 "Fdb mac add with nexthop group"
+
+ # fdb nexthops can only reference nexthop groups and not nexthops
+ run_cmd "$BRIDGE fdb add 02:02:00:00:00:14 dev vx10 nhid 12 self"
+ log_test $? 255 "Fdb mac add with nexthop"
+
+ run_cmd "$IP ro add 172.16.0.0/22 nhid 15"
+ log_test $? 2 "Route add with fdb nexthop"
+
+ run_cmd "$IP ro add 172.16.0.0/22 nhid 103"
+ log_test $? 2 "Route add with fdb nexthop group"
+
+ run_cmd "$IP nexthop del id 12"
+ run_cmd "$BRIDGE fdb get to 02:02:00:00:00:13 dev vx10 self"
+ log_test $? 0 "Fdb entry after deleting a single nexthop"
+
+ run_cmd "$IP nexthop del id 102"
+ log_test $? 0 "Fdb nexthop delete"
+
+ run_cmd "$BRIDGE fdb get to 02:02:00:00:00:13 dev vx10 self"
+ log_test $? 254 "Fdb entry after deleting a nexthop group"
+
+ $IP link del dev vx10
+}
+
+################################################################################
+# basic operations (add, delete, replace) on nexthops and nexthop groups
+#
+# IPv6
+
+ipv6_fcnal()
+{
+ local rc
+
+ echo
+ echo "IPv6"
+ echo "----------------------"
+
+ run_cmd "$IP nexthop add id 52 via 2001:db8:91::2 dev veth1"
+ rc=$?
+ log_test $rc 0 "Create nexthop with id, gw, dev"
+ if [ $rc -ne 0 ]; then
+ echo "Basic IPv6 create fails; can not continue"
+ return 1
+ fi
+
+ run_cmd "$IP nexthop get id 52"
+ log_test $? 0 "Get nexthop by id"
+ check_nexthop "id 52" "id 52 via 2001:db8:91::2 dev veth1 scope link"
+
+ run_cmd "$IP nexthop del id 52"
+ log_test $? 0 "Delete nexthop by id"
+ check_nexthop "id 52" ""
+
+ #
+ # gw, device spec
+ #
+ # gw validation, no device - fails since dev required
+ run_cmd "$IP nexthop add id 52 via 2001:db8:92::3"
+ log_test $? 2 "Create nexthop - gw only"
+
+ # gw is not reachable throught given dev
+ run_cmd "$IP nexthop add id 53 via 2001:db8:3::3 dev veth1"
+ log_test $? 2 "Create nexthop - invalid gw+dev combination"
+
+ # onlink arg overrides gw+dev lookup
+ run_cmd "$IP nexthop add id 53 via 2001:db8:3::3 dev veth1 onlink"
+ log_test $? 0 "Create nexthop - gw+dev and onlink"
+
+ # admin down should delete nexthops
+ set -e
+ run_cmd "$IP -6 nexthop add id 55 via 2001:db8:91::3 dev veth1"
+ run_cmd "$IP nexthop add id 56 via 2001:db8:91::4 dev veth1"
+ run_cmd "$IP nexthop add id 57 via 2001:db8:91::5 dev veth1"
+ run_cmd "$IP li set dev veth1 down"
+ set +e
+ check_nexthop "dev veth1" ""
+ log_test $? 0 "Nexthops removed on admin down"
+}
+
+ipv6_grp_fcnal()
+{
+ local rc
+
+ echo
+ echo "IPv6 groups functional"
+ echo "----------------------"
+
+ # basic functionality: create a nexthop group, default weight
+ run_cmd "$IP nexthop add id 61 via 2001:db8:91::2 dev veth1"
+ run_cmd "$IP nexthop add id 101 group 61"
+ log_test $? 0 "Create nexthop group with single nexthop"
+
+ # get nexthop group
+ run_cmd "$IP nexthop get id 101"
+ log_test $? 0 "Get nexthop group by id"
+ check_nexthop "id 101" "id 101 group 61"
+
+ # delete nexthop group
+ run_cmd "$IP nexthop del id 101"
+ log_test $? 0 "Delete nexthop group by id"
+ check_nexthop "id 101" ""
+
+ $IP nexthop flush >/dev/null 2>&1
+ check_nexthop "id 101" ""
+
+ #
+ # create group with multiple nexthops - mix of gw and dev only
+ #
+ run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"
+ run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
+ run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1"
+ run_cmd "$IP nexthop add id 65 dev veth1"
+ run_cmd "$IP nexthop add id 102 group 62/63/64/65"
+ log_test $? 0 "Nexthop group with multiple nexthops"
+ check_nexthop "id 102" "id 102 group 62/63/64/65"
+
+ # Delete nexthop in a group and group is updated
+ run_cmd "$IP nexthop del id 63"
+ check_nexthop "id 102" "id 102 group 62/64/65"
+ log_test $? 0 "Nexthop group updated when entry is deleted"
+
+ # create group with multiple weighted nexthops
+ run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
+ run_cmd "$IP nexthop add id 103 group 62/63,2/64,3/65,4"
+ log_test $? 0 "Nexthop group with weighted nexthops"
+ check_nexthop "id 103" "id 103 group 62/63,2/64,3/65,4"
+
+ # Delete nexthop in a weighted group and group is updated
+ run_cmd "$IP nexthop del id 63"
+ check_nexthop "id 103" "id 103 group 62/64,3/65,4"
+ log_test $? 0 "Weighted nexthop group updated when entry is deleted"
+
+ # admin down - nexthop is removed from group
+ run_cmd "$IP li set dev veth1 down"
+ check_nexthop "dev veth1" ""
+ log_test $? 0 "Nexthops in groups removed on admin down"
+
+ # expect groups to have been deleted as well
+ check_nexthop "" ""
+
+ run_cmd "$IP li set dev veth1 up"
+
+ $IP nexthop flush >/dev/null 2>&1
+
+ # group with nexthops using different devices
+ set -e
+ run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"
+ run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
+ run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1"
+ run_cmd "$IP nexthop add id 65 via 2001:db8:91::5 dev veth1"
+
+ run_cmd "$IP nexthop add id 72 via 2001:db8:92::2 dev veth3"
+ run_cmd "$IP nexthop add id 73 via 2001:db8:92::3 dev veth3"
+ run_cmd "$IP nexthop add id 74 via 2001:db8:92::4 dev veth3"
+ run_cmd "$IP nexthop add id 75 via 2001:db8:92::5 dev veth3"
+ set +e
+
+ # multiple groups with same nexthop
+ run_cmd "$IP nexthop add id 104 group 62"
+ run_cmd "$IP nexthop add id 105 group 62"
+ check_nexthop "group" "id 104 group 62 id 105 group 62"
+ log_test $? 0 "Multiple groups with same nexthop"
+
+ run_cmd "$IP nexthop flush groups"
+ [ $? -ne 0 ] && return 1
+
+ # on admin down of veth1, it should be removed from the group
+ run_cmd "$IP nexthop add id 105 group 62/63/72/73/64"
+ run_cmd "$IP li set veth1 down"
+ check_nexthop "id 105" "id 105 group 72/73"
+ log_test $? 0 "Nexthops in group removed on admin down - mixed group"
+
+ run_cmd "$IP nexthop add id 106 group 105/74"
+ log_test $? 2 "Nexthop group can not have a group as an entry"
+
+ # a group can have a blackhole entry only if it is the only
+ # nexthop in the group. Needed for atomic replace with an
+ # actual nexthop group
+ run_cmd "$IP -6 nexthop add id 31 blackhole"
+ run_cmd "$IP nexthop add id 107 group 31"
+ log_test $? 0 "Nexthop group with a blackhole entry"
+
+ run_cmd "$IP nexthop add id 108 group 31/24"
+ log_test $? 2 "Nexthop group can not have a blackhole and another nexthop"
+}
+
+ipv6_fcnal_runtime()
+{
+ local rc
+
+ echo
+ echo "IPv6 functional runtime"
+ echo "-----------------------"
+
+ #
+ # IPv6 - the basics
+ #
+ run_cmd "$IP nexthop add id 81 via 2001:db8:91::2 dev veth1"
+ run_cmd "$IP ro add 2001:db8:101::1/128 nhid 81"
+ log_test $? 0 "Route add"
+
+ run_cmd "$IP ro delete 2001:db8:101::1/128 nhid 81"
+ log_test $? 0 "Route delete"
+
+ run_cmd "$IP ro add 2001:db8:101::1/128 nhid 81"
+ run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1"
+ log_test $? 0 "Ping with nexthop"
+
+ run_cmd "$IP nexthop add id 82 via 2001:db8:92::2 dev veth3"
+ run_cmd "$IP nexthop add id 122 group 81/82"
+ run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 122"
+ run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1"
+ log_test $? 0 "Ping - multipath"
+
+ #
+ # IPv6 with blackhole nexthops
+ #
+ run_cmd "$IP -6 nexthop add id 83 blackhole"
+ run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 83"
+ run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1"
+ log_test $? 2 "Ping - blackhole"
+
+ run_cmd "$IP nexthop replace id 83 via 2001:db8:91::2 dev veth1"
+ run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1"
+ log_test $? 0 "Ping - blackhole replaced with gateway"
+
+ run_cmd "$IP -6 nexthop replace id 83 blackhole"
+ run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1"
+ log_test $? 2 "Ping - gateway replaced by blackhole"
+
+ run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 122"
+ run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1"
+ if [ $? -eq 0 ]; then
+ run_cmd "$IP nexthop replace id 122 group 83"
+ run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1"
+ log_test $? 2 "Ping - group with blackhole"
+
+ run_cmd "$IP nexthop replace id 122 group 81/82"
+ run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1"
+ log_test $? 0 "Ping - group blackhole replaced with gateways"
+ else
+ log_test 2 0 "Ping - multipath failed"
+ fi
+
+ #
+ # device only and gw + dev only mix
+ #
+ run_cmd "$IP -6 nexthop add id 85 dev veth1"
+ run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 85"
+ log_test $? 0 "IPv6 route with device only nexthop"
+ check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 85 dev veth1 metric 1024"
+
+ run_cmd "$IP nexthop add id 123 group 81/85"
+ run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 123"
+ log_test $? 0 "IPv6 multipath route with nexthop mix - dev only + gw"
+ check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 123 metric 1024 nexthop via 2001:db8:91::2 dev veth1 weight 1 nexthop dev veth1 weight 1"
+
+ #
+ # IPv6 route with v4 nexthop - not allowed
+ #
+ run_cmd "$IP ro delete 2001:db8:101::1/128"
+ run_cmd "$IP nexthop add id 84 via 172.16.1.1 dev veth1"
+ run_cmd "$IP ro add 2001:db8:101::1/128 nhid 84"
+ log_test $? 2 "IPv6 route can not have a v4 gateway"
+
+ run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 81"
+ run_cmd "$IP nexthop replace id 81 via 172.16.1.1 dev veth1"
+ log_test $? 2 "Nexthop replace - v6 route, v4 nexthop"
+
+ run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 122"
+ run_cmd "$IP nexthop replace id 81 via 172.16.1.1 dev veth1"
+ log_test $? 2 "Nexthop replace of group entry - v6 route, v4 nexthop"
+
+ run_cmd "$IP nexthop add id 86 via 2001:db8:92::2 dev veth3"
+ run_cmd "$IP nexthop add id 87 via 172.16.1.1 dev veth1"
+ run_cmd "$IP nexthop add id 88 via 172.16.1.1 dev veth1"
+ run_cmd "$IP nexthop add id 124 group 86/87/88"
+ run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
+ log_test $? 2 "IPv6 route can not have a group with v4 and v6 gateways"
+
+ run_cmd "$IP nexthop del id 88"
+ run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
+ log_test $? 2 "IPv6 route can not have a group with v4 and v6 gateways"
+
+ run_cmd "$IP nexthop del id 87"
+ run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
+ log_test $? 0 "IPv6 route using a group after removing v4 gateways"
+
+ run_cmd "$IP ro delete 2001:db8:101::1/128"
+ run_cmd "$IP nexthop add id 87 via 172.16.1.1 dev veth1"
+ run_cmd "$IP nexthop add id 88 via 172.16.1.1 dev veth1"
+ run_cmd "$IP nexthop replace id 124 group 86/87/88"
+ run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
+ log_test $? 2 "IPv6 route can not have a group with v4 and v6 gateways"
+
+ run_cmd "$IP nexthop replace id 88 via 2001:db8:92::2 dev veth3"
+ run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
+ log_test $? 2 "IPv6 route can not have a group with v4 and v6 gateways"
+
+ run_cmd "$IP nexthop replace id 87 via 2001:db8:92::2 dev veth3"
+ run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
+ log_test $? 0 "IPv6 route using a group after replacing v4 gateways"
+
+ $IP nexthop flush >/dev/null 2>&1
+
+ #
+ # weird IPv6 cases
+ #
+ run_cmd "$IP nexthop add id 86 via 2001:db8:91::2 dev veth1"
+ run_cmd "$IP ro add 2001:db8:101::1/128 nhid 81"
+
+ # rpfilter and default route
+ $IP nexthop flush >/dev/null 2>&1
+ run_cmd "ip netns exec me ip6tables -t mangle -I PREROUTING 1 -m rpfilter --invert -j DROP"
+ run_cmd "$IP nexthop add id 91 via 2001:db8:91::2 dev veth1"
+ run_cmd "$IP nexthop add id 92 via 2001:db8:92::2 dev veth3"
+ run_cmd "$IP nexthop add id 93 group 91/92"
+ run_cmd "$IP -6 ro add default nhid 91"
+ run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1"
+ log_test $? 0 "Nexthop with default route and rpfilter"
+ run_cmd "$IP -6 ro replace default nhid 93"
+ run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1"
+ log_test $? 0 "Nexthop with multipath default route and rpfilter"
+
+ # TO-DO:
+ # existing route with old nexthop; append route with new nexthop
+ # existing route with old nexthop; replace route with new
+ # existing route with new nexthop; replace route with old
+ # route with src address and using nexthop - not allowed
+}
+
+ipv6_large_grp()
+{
+ local ecmp=32
+
+ echo
+ echo "IPv6 large groups (x$ecmp)"
+ echo "---------------------"
+
+ check_large_grp 6 $ecmp
+
+ $IP nexthop flush >/dev/null 2>&1
+}
+
+ipv6_del_add_loop1()
+{
+ while :; do
+ $IP nexthop del id 100
+ $IP nexthop add id 100 via 2001:db8:91::2 dev veth1
+ done >/dev/null 2>&1
+}
+
+ipv6_grp_replace_loop()
+{
+ while :; do
+ $IP nexthop replace id 102 group 100/101
+ done >/dev/null 2>&1
+}
+
+ipv6_torture()
+{
+ local pid1
+ local pid2
+ local pid3
+ local pid4
+ local pid5
+
+ echo
+ echo "IPv6 runtime torture"
+ echo "--------------------"
+ if [ ! -x "$(command -v mausezahn)" ]; then
+ echo "SKIP: Could not run test; need mausezahn tool"
+ return
+ fi
+
+ run_cmd "$IP nexthop add id 100 via 2001:db8:91::2 dev veth1"
+ run_cmd "$IP nexthop add id 101 via 2001:db8:92::2 dev veth3"
+ run_cmd "$IP nexthop add id 102 group 100/101"
+ run_cmd "$IP route add 2001:db8:101::1 nhid 102"
+ run_cmd "$IP route add 2001:db8:101::2 nhid 102"
+
+ ipv6_del_add_loop1 &
+ pid1=$!
+ ipv6_grp_replace_loop &
+ pid2=$!
+ ip netns exec me ping -f 2001:db8:101::1 >/dev/null 2>&1 &
+ pid3=$!
+ ip netns exec me ping -f 2001:db8:101::2 >/dev/null 2>&1 &
+ pid4=$!
+ ip netns exec me mausezahn -6 veth1 -B 2001:db8:101::2 -A 2001:db8:91::1 -c 0 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 &
+ pid5=$!
+
+ sleep 300
+ kill -9 $pid1 $pid2 $pid3 $pid4 $pid5
+
+ # if we did not crash, success
+ log_test 0 0 "IPv6 torture test"
+}
+
+
+ipv4_fcnal()
+{
+ local rc
+
+ echo
+ echo "IPv4 functional"
+ echo "----------------------"
+
+ #
+ # basic IPv4 ops - add, get, delete
+ #
+ run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1"
+ rc=$?
+ log_test $rc 0 "Create nexthop with id, gw, dev"
+ if [ $rc -ne 0 ]; then
+ echo "Basic IPv4 create fails; can not continue"
+ return 1
+ fi
+
+ run_cmd "$IP nexthop get id 12"
+ log_test $? 0 "Get nexthop by id"
+ check_nexthop "id 12" "id 12 via 172.16.1.2 dev veth1 scope link"
+
+ run_cmd "$IP nexthop del id 12"
+ log_test $? 0 "Delete nexthop by id"
+ check_nexthop "id 52" ""
+
+ #
+ # gw, device spec
+ #
+ # gw validation, no device - fails since dev is required
+ run_cmd "$IP nexthop add id 12 via 172.16.2.3"
+ log_test $? 2 "Create nexthop - gw only"
+
+ # gw not reachable through given dev
+ run_cmd "$IP nexthop add id 13 via 172.16.3.2 dev veth1"
+ log_test $? 2 "Create nexthop - invalid gw+dev combination"
+
+ # onlink flag overrides gw+dev lookup
+ run_cmd "$IP nexthop add id 13 via 172.16.3.2 dev veth1 onlink"
+ log_test $? 0 "Create nexthop - gw+dev and onlink"
+
+ # admin down should delete nexthops
+ set -e
+ run_cmd "$IP nexthop add id 15 via 172.16.1.3 dev veth1"
+ run_cmd "$IP nexthop add id 16 via 172.16.1.4 dev veth1"
+ run_cmd "$IP nexthop add id 17 via 172.16.1.5 dev veth1"
+ run_cmd "$IP li set dev veth1 down"
+ set +e
+ check_nexthop "dev veth1" ""
+ log_test $? 0 "Nexthops removed on admin down"
+
+ # nexthop route delete warning: route add with nhid and delete
+ # using device
+ run_cmd "$IP li set dev veth1 up"
+ run_cmd "$IP nexthop add id 12 via 172.16.1.3 dev veth1"
+ out1=`dmesg | grep "WARNING:.*fib_nh_match.*" | wc -l`
+ run_cmd "$IP route add 172.16.101.1/32 nhid 12"
+ run_cmd "$IP route delete 172.16.101.1/32 dev veth1"
+ out2=`dmesg | grep "WARNING:.*fib_nh_match.*" | wc -l`
+ [ $out1 -eq $out2 ]
+ rc=$?
+ log_test $rc 0 "Delete nexthop route warning"
+ run_cmd "$IP route delete 172.16.101.1/32 nhid 12"
+ run_cmd "$IP nexthop del id 12"
+
+ run_cmd "$IP nexthop add id 21 via 172.16.1.6 dev veth1"
+ run_cmd "$IP ro add 172.16.101.0/24 nhid 21"
+ run_cmd "$IP ro del 172.16.101.0/24 nexthop via 172.16.1.7 dev veth1 nexthop via 172.16.1.8 dev veth1"
+ log_test $? 2 "Delete multipath route with only nh id based entry"
+
+ run_cmd "$IP nexthop add id 22 via 172.16.1.6 dev veth1"
+ run_cmd "$IP ro add 172.16.102.0/24 nhid 22"
+ run_cmd "$IP ro del 172.16.102.0/24 dev veth1"
+ log_test $? 2 "Delete route when specifying only nexthop device"
+
+ run_cmd "$IP ro del 172.16.102.0/24 via 172.16.1.6"
+ log_test $? 2 "Delete route when specifying only gateway"
+
+ run_cmd "$IP ro del 172.16.102.0/24"
+ log_test $? 0 "Delete route when not specifying nexthop attributes"
+}
+
+ipv4_grp_fcnal()
+{
+ local rc
+
+ echo
+ echo "IPv4 groups functional"
+ echo "----------------------"
+
+ # basic functionality: create a nexthop group, default weight
+ run_cmd "$IP nexthop add id 11 via 172.16.1.2 dev veth1"
+ run_cmd "$IP nexthop add id 101 group 11"
+ log_test $? 0 "Create nexthop group with single nexthop"
+
+ # get nexthop group
+ run_cmd "$IP nexthop get id 101"
+ log_test $? 0 "Get nexthop group by id"
+ check_nexthop "id 101" "id 101 group 11"
+
+ # delete nexthop group
+ run_cmd "$IP nexthop del id 101"
+ log_test $? 0 "Delete nexthop group by id"
+ check_nexthop "id 101" ""
+
+ $IP nexthop flush >/dev/null 2>&1
+
+ #
+ # create group with multiple nexthops
+ run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1"
+ run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1"
+ run_cmd "$IP nexthop add id 14 via 172.16.1.4 dev veth1"
+ run_cmd "$IP nexthop add id 15 via 172.16.1.5 dev veth1"
+ run_cmd "$IP nexthop add id 102 group 12/13/14/15"
+ log_test $? 0 "Nexthop group with multiple nexthops"
+ check_nexthop "id 102" "id 102 group 12/13/14/15"
+
+ # Delete nexthop in a group and group is updated
+ run_cmd "$IP nexthop del id 13"
+ check_nexthop "id 102" "id 102 group 12/14/15"
+ log_test $? 0 "Nexthop group updated when entry is deleted"
+
+ # create group with multiple weighted nexthops
+ run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1"
+ run_cmd "$IP nexthop add id 103 group 12/13,2/14,3/15,4"
+ log_test $? 0 "Nexthop group with weighted nexthops"
+ check_nexthop "id 103" "id 103 group 12/13,2/14,3/15,4"
+
+ # Delete nexthop in a weighted group and group is updated
+ run_cmd "$IP nexthop del id 13"
+ check_nexthop "id 103" "id 103 group 12/14,3/15,4"
+ log_test $? 0 "Weighted nexthop group updated when entry is deleted"
+
+ # admin down - nexthop is removed from group
+ run_cmd "$IP li set dev veth1 down"
+ check_nexthop "dev veth1" ""
+ log_test $? 0 "Nexthops in groups removed on admin down"
+
+ # expect groups to have been deleted as well
+ check_nexthop "" ""
+
+ run_cmd "$IP li set dev veth1 up"
+
+ $IP nexthop flush >/dev/null 2>&1
+
+ # group with nexthops using different devices
+ set -e
+ run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1"
+ run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1"
+ run_cmd "$IP nexthop add id 14 via 172.16.1.4 dev veth1"
+ run_cmd "$IP nexthop add id 15 via 172.16.1.5 dev veth1"
+
+ run_cmd "$IP nexthop add id 22 via 172.16.2.2 dev veth3"
+ run_cmd "$IP nexthop add id 23 via 172.16.2.3 dev veth3"
+ run_cmd "$IP nexthop add id 24 via 172.16.2.4 dev veth3"
+ run_cmd "$IP nexthop add id 25 via 172.16.2.5 dev veth3"
+ set +e
+
+ # multiple groups with same nexthop
+ run_cmd "$IP nexthop add id 104 group 12"
+ run_cmd "$IP nexthop add id 105 group 12"
+ check_nexthop "group" "id 104 group 12 id 105 group 12"
+ log_test $? 0 "Multiple groups with same nexthop"
+
+ run_cmd "$IP nexthop flush groups"
+ [ $? -ne 0 ] && return 1
+
+ # on admin down of veth1, it should be removed from the group
+ run_cmd "$IP nexthop add id 105 group 12/13/22/23/14"
+ run_cmd "$IP li set veth1 down"
+ check_nexthop "id 105" "id 105 group 22/23"
+ log_test $? 0 "Nexthops in group removed on admin down - mixed group"
+
+ run_cmd "$IP nexthop add id 106 group 105/24"
+ log_test $? 2 "Nexthop group can not have a group as an entry"
+
+ # a group can have a blackhole entry only if it is the only
+ # nexthop in the group. Needed for atomic replace with an
+ # actual nexthop group
+ run_cmd "$IP nexthop add id 31 blackhole"
+ run_cmd "$IP nexthop add id 107 group 31"
+ log_test $? 0 "Nexthop group with a blackhole entry"
+
+ run_cmd "$IP nexthop add id 108 group 31/24"
+ log_test $? 2 "Nexthop group can not have a blackhole and another nexthop"
+}
+
+ipv4_withv6_fcnal()
+{
+ local lladdr
+
+ set -e
+ lladdr=$(get_linklocal veth2 peer)
+ run_cmd "$IP nexthop add id 11 via ${lladdr} dev veth1"
+ set +e
+ run_cmd "$IP ro add 172.16.101.1/32 nhid 11"
+ log_test $? 0 "IPv6 nexthop with IPv4 route"
+ check_route "172.16.101.1" "172.16.101.1 nhid 11 via inet6 ${lladdr} dev veth1"
+
+ set -e
+ run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1"
+ run_cmd "$IP nexthop add id 101 group 11/12"
+ set +e
+ run_cmd "$IP ro replace 172.16.101.1/32 nhid 101"
+ log_test $? 0 "IPv6 nexthop with IPv4 route"
+
+ check_route "172.16.101.1" "172.16.101.1 nhid 101 nexthop via inet6 ${lladdr} dev veth1 weight 1 nexthop via 172.16.1.2 dev veth1 weight 1"
+
+ run_cmd "$IP ro replace 172.16.101.1/32 via inet6 ${lladdr} dev veth1"
+ log_test $? 0 "IPv4 route with IPv6 gateway"
+ check_route "172.16.101.1" "172.16.101.1 via inet6 ${lladdr} dev veth1"
+
+ run_cmd "$IP ro replace 172.16.101.1/32 via inet6 2001:db8:50::1 dev veth1"
+ log_test $? 2 "IPv4 route with invalid IPv6 gateway"
+}
+
+ipv4_fcnal_runtime()
+{
+ local lladdr
+ local rc
+
+ echo
+ echo "IPv4 functional runtime"
+ echo "-----------------------"
+
+ run_cmd "$IP nexthop add id 21 via 172.16.1.2 dev veth1"
+ run_cmd "$IP ro add 172.16.101.1/32 nhid 21"
+ log_test $? 0 "Route add"
+ check_route "172.16.101.1" "172.16.101.1 nhid 21 via 172.16.1.2 dev veth1"
+
+ run_cmd "$IP ro delete 172.16.101.1/32 nhid 21"
+ log_test $? 0 "Route delete"
+
+ #
+ # scope mismatch
+ #
+ run_cmd "$IP nexthop add id 22 via 172.16.1.2 dev veth1"
+ run_cmd "$IP ro add 172.16.101.1/32 nhid 22 scope host"
+ log_test $? 2 "Route add - scope conflict with nexthop"
+
+ run_cmd "$IP nexthop replace id 22 dev veth3"
+ run_cmd "$IP ro add 172.16.101.1/32 nhid 22 scope host"
+ run_cmd "$IP nexthop replace id 22 via 172.16.2.2 dev veth3"
+ log_test $? 2 "Nexthop replace with invalid scope for existing route"
+
+ #
+ # add route with nexthop and check traffic
+ #
+ run_cmd "$IP nexthop replace id 21 via 172.16.1.2 dev veth1"
+ run_cmd "$IP ro replace 172.16.101.1/32 nhid 21"
+ run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1"
+ log_test $? 0 "Basic ping"
+
+ run_cmd "$IP nexthop replace id 22 via 172.16.2.2 dev veth3"
+ run_cmd "$IP nexthop add id 122 group 21/22"
+ run_cmd "$IP ro replace 172.16.101.1/32 nhid 122"
+ run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1"
+ log_test $? 0 "Ping - multipath"
+
+ run_cmd "$IP ro delete 172.16.101.1/32 nhid 122"
+
+ #
+ # multiple default routes
+ # - tests fib_select_default
+ run_cmd "$IP nexthop add id 501 via 172.16.1.2 dev veth1"
+ run_cmd "$IP ro add default nhid 501"
+ run_cmd "$IP ro add default via 172.16.1.3 dev veth1 metric 20"
+ run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1"
+ log_test $? 0 "Ping - multiple default routes, nh first"
+
+ # flip the order
+ run_cmd "$IP ro del default nhid 501"
+ run_cmd "$IP ro del default via 172.16.1.3 dev veth1 metric 20"
+ run_cmd "$IP ro add default via 172.16.1.2 dev veth1 metric 20"
+ run_cmd "$IP nexthop replace id 501 via 172.16.1.3 dev veth1"
+ run_cmd "$IP ro add default nhid 501 metric 20"
+ run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1"
+ log_test $? 0 "Ping - multiple default routes, nh second"
+
+ run_cmd "$IP nexthop delete nhid 501"
+ run_cmd "$IP ro del default"
+
+ #
+ # IPv4 with blackhole nexthops
+ #
+ run_cmd "$IP nexthop add id 23 blackhole"
+ run_cmd "$IP ro replace 172.16.101.1/32 nhid 23"
+ run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1"
+ log_test $? 2 "Ping - blackhole"
+
+ run_cmd "$IP nexthop replace id 23 via 172.16.1.2 dev veth1"
+ run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1"
+ log_test $? 0 "Ping - blackhole replaced with gateway"
+
+ run_cmd "$IP nexthop replace id 23 blackhole"
+ run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1"
+ log_test $? 2 "Ping - gateway replaced by blackhole"
+
+ run_cmd "$IP ro replace 172.16.101.1/32 nhid 122"
+ run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1"
+ if [ $? -eq 0 ]; then
+ run_cmd "$IP nexthop replace id 122 group 23"
+ run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1"
+ log_test $? 2 "Ping - group with blackhole"
+
+ run_cmd "$IP nexthop replace id 122 group 21/22"
+ run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1"
+ log_test $? 0 "Ping - group blackhole replaced with gateways"
+ else
+ log_test 2 0 "Ping - multipath failed"
+ fi
+
+ #
+ # device only and gw + dev only mix
+ #
+ run_cmd "$IP nexthop add id 85 dev veth1"
+ run_cmd "$IP ro replace 172.16.101.1/32 nhid 85"
+ log_test $? 0 "IPv4 route with device only nexthop"
+ check_route "172.16.101.1" "172.16.101.1 nhid 85 dev veth1"
+
+ run_cmd "$IP nexthop add id 123 group 21/85"
+ run_cmd "$IP ro replace 172.16.101.1/32 nhid 123"
+ log_test $? 0 "IPv4 multipath route with nexthop mix - dev only + gw"
+ check_route "172.16.101.1" "172.16.101.1 nhid 123 nexthop via 172.16.1.2 dev veth1 weight 1 nexthop dev veth1 weight 1"
+
+ #
+ # IPv4 with IPv6
+ #
+ set -e
+ lladdr=$(get_linklocal veth2 peer)
+ run_cmd "$IP nexthop add id 24 via ${lladdr} dev veth1"
+ set +e
+ run_cmd "$IP ro replace 172.16.101.1/32 nhid 24"
+ run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1"
+ log_test $? 0 "IPv6 nexthop with IPv4 route"
+
+ $IP neigh sh | grep -q "${lladdr} dev veth1"
+ if [ $? -eq 1 ]; then
+ echo " WARNING: Neigh entry missing for ${lladdr}"
+ $IP neigh sh | grep 'dev veth1'
+ fi
+
+ $IP neigh sh | grep -q "172.16.101.1 dev eth1"
+ if [ $? -eq 0 ]; then
+ echo " WARNING: Neigh entry exists for 172.16.101.1"
+ $IP neigh sh | grep 'dev veth1'
+ fi
+
+ set -e
+ run_cmd "$IP nexthop add id 25 via 172.16.1.2 dev veth1"
+ run_cmd "$IP nexthop add id 101 group 24/25"
+ set +e
+ run_cmd "$IP ro replace 172.16.101.1/32 nhid 101"
+ log_test $? 0 "IPv4 route with mixed v4-v6 multipath route"
+
+ check_route "172.16.101.1" "172.16.101.1 nhid 101 nexthop via inet6 ${lladdr} dev veth1 weight 1 nexthop via 172.16.1.2 dev veth1 weight 1"
+
+ run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1"
+ log_test $? 0 "IPv6 nexthop with IPv4 route"
+
+ run_cmd "$IP ro replace 172.16.101.1/32 via inet6 ${lladdr} dev veth1"
+ run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1"
+ log_test $? 0 "IPv4 route with IPv6 gateway"
+
+ $IP neigh sh | grep -q "${lladdr} dev veth1"
+ if [ $? -eq 1 ]; then
+ echo " WARNING: Neigh entry missing for ${lladdr}"
+ $IP neigh sh | grep 'dev veth1'
+ fi
+
+ $IP neigh sh | grep -q "172.16.101.1 dev eth1"
+ if [ $? -eq 0 ]; then
+ echo " WARNING: Neigh entry exists for 172.16.101.1"
+ $IP neigh sh | grep 'dev veth1'
+ fi
+
+ run_cmd "$IP ro del 172.16.101.1/32 via inet6 ${lladdr} dev veth1"
+ run_cmd "$IP -4 ro add default via inet6 ${lladdr} dev veth1"
+ run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1"
+ log_test $? 0 "IPv4 default route with IPv6 gateway"
+
+ #
+ # MPLS as an example of LWT encap
+ #
+ run_cmd "$IP nexthop add id 51 encap mpls 101 via 172.16.1.2 dev veth1"
+ log_test $? 0 "IPv4 route with MPLS encap"
+ check_nexthop "id 51" "id 51 encap mpls 101 via 172.16.1.2 dev veth1 scope link"
+ log_test $? 0 "IPv4 route with MPLS encap - check"
+
+ run_cmd "$IP nexthop add id 52 encap mpls 102 via inet6 2001:db8:91::2 dev veth1"
+ log_test $? 0 "IPv4 route with MPLS encap and v6 gateway"
+ check_nexthop "id 52" "id 52 encap mpls 102 via 2001:db8:91::2 dev veth1 scope link"
+ log_test $? 0 "IPv4 route with MPLS encap, v6 gw - check"
+}
+
+ipv4_large_grp()
+{
+ local ecmp=32
+
+ echo
+ echo "IPv4 large groups (x$ecmp)"
+ echo "---------------------"
+
+ check_large_grp 4 $ecmp
+
+ $IP nexthop flush >/dev/null 2>&1
+}
+
+sysctl_nexthop_compat_mode_check()
+{
+ local sysctlname="net.ipv4.nexthop_compat_mode"
+ local lprefix=$1
+
+ IPE="ip netns exec me"
+
+ $IPE sysctl -q $sysctlname 2>&1 >/dev/null
+ if [ $? -ne 0 ]; then
+ echo "SKIP: kernel lacks nexthop compat mode sysctl control"
+ return $ksft_skip
+ fi
+
+ out=$($IPE sysctl $sysctlname 2>/dev/null)
+ log_test $? 0 "$lprefix default nexthop compat mode check"
+ check_output "${out}" "$sysctlname = 1"
+}
+
+sysctl_nexthop_compat_mode_set()
+{
+ local sysctlname="net.ipv4.nexthop_compat_mode"
+ local mode=$1
+ local lprefix=$2
+
+ IPE="ip netns exec me"
+
+ out=$($IPE sysctl -w $sysctlname=$mode)
+ log_test $? 0 "$lprefix set compat mode - $mode"
+ check_output "${out}" "net.ipv4.nexthop_compat_mode = $mode"
+}
+
+ipv6_compat_mode()
+{
+ local rc
+
+ echo
+ echo "IPv6 nexthop api compat mode test"
+ echo "--------------------------------"
+
+ sysctl_nexthop_compat_mode_check "IPv6"
+ if [ $? -eq $ksft_skip ]; then
+ return $ksft_skip
+ fi
+
+ run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"
+ run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
+ run_cmd "$IP nexthop add id 122 group 62/63"
+ ipmout=$(start_ip_monitor route)
+
+ run_cmd "$IP -6 ro add 2001:db8:101::1/128 nhid 122"
+ # route add notification should contain expanded nexthops
+ stop_ip_monitor $ipmout 3
+ log_test $? 0 "IPv6 compat mode on - route add notification"
+
+ # route dump should contain expanded nexthops
+ check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 122 metric 1024 nexthop via 2001:db8:91::2 dev veth1 weight 1 nexthop via 2001:db8:91::3 dev veth1 weight 1"
+ log_test $? 0 "IPv6 compat mode on - route dump"
+
+ # change in nexthop group should generate route notification
+ run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1"
+ ipmout=$(start_ip_monitor route)
+ run_cmd "$IP nexthop replace id 122 group 62/64"
+ stop_ip_monitor $ipmout 3
+
+ log_test $? 0 "IPv6 compat mode on - nexthop change"
+
+ # set compat mode off
+ sysctl_nexthop_compat_mode_set 0 "IPv6"
+
+ run_cmd "$IP -6 ro del 2001:db8:101::1/128 nhid 122"
+
+ run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"
+ run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
+ run_cmd "$IP nexthop add id 122 group 62/63"
+ ipmout=$(start_ip_monitor route)
+
+ run_cmd "$IP -6 ro add 2001:db8:101::1/128 nhid 122"
+ # route add notification should not contain expanded nexthops
+ stop_ip_monitor $ipmout 1
+ log_test $? 0 "IPv6 compat mode off - route add notification"
+
+ # route dump should not contain expanded nexthops
+ check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 122 metric 1024"
+ log_test $? 0 "IPv6 compat mode off - route dump"
+
+ # change in nexthop group should not generate route notification
+ run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1"
+ ipmout=$(start_ip_monitor route)
+ run_cmd "$IP nexthop replace id 122 group 62/64"
+ stop_ip_monitor $ipmout 0
+ log_test $? 0 "IPv6 compat mode off - nexthop change"
+
+ # nexthop delete should not generate route notification
+ ipmout=$(start_ip_monitor route)
+ run_cmd "$IP nexthop del id 122"
+ stop_ip_monitor $ipmout 0
+ log_test $? 0 "IPv6 compat mode off - nexthop delete"
+
+ # set compat mode back on
+ sysctl_nexthop_compat_mode_set 1 "IPv6"
+}
+
+ipv4_compat_mode()
+{
+ local rc
+
+ echo
+ echo "IPv4 nexthop api compat mode"
+ echo "----------------------------"
+
+ sysctl_nexthop_compat_mode_check "IPv4"
+ if [ $? -eq $ksft_skip ]; then
+ return $ksft_skip
+ fi
+
+ run_cmd "$IP nexthop add id 21 via 172.16.1.2 dev veth1"
+ run_cmd "$IP nexthop add id 22 via 172.16.1.2 dev veth1"
+ run_cmd "$IP nexthop add id 122 group 21/22"
+ ipmout=$(start_ip_monitor route)
+
+ run_cmd "$IP ro add 172.16.101.1/32 nhid 122"
+ stop_ip_monitor $ipmout 3
+
+ # route add notification should contain expanded nexthops
+ log_test $? 0 "IPv4 compat mode on - route add notification"
+
+ # route dump should contain expanded nexthops
+ check_route "172.16.101.1" "172.16.101.1 nhid 122 nexthop via 172.16.1.2 dev veth1 weight 1 nexthop via 172.16.1.2 dev veth1 weight 1"
+ log_test $? 0 "IPv4 compat mode on - route dump"
+
+ # change in nexthop group should generate route notification
+ run_cmd "$IP nexthop add id 23 via 172.16.1.3 dev veth1"
+ ipmout=$(start_ip_monitor route)
+ run_cmd "$IP nexthop replace id 122 group 21/23"
+ stop_ip_monitor $ipmout 3
+ log_test $? 0 "IPv4 compat mode on - nexthop change"
+
+ sysctl_nexthop_compat_mode_set 0 "IPv4"
+
+ # cleanup
+ run_cmd "$IP ro del 172.16.101.1/32 nhid 122"
+
+ ipmout=$(start_ip_monitor route)
+ run_cmd "$IP ro add 172.16.101.1/32 nhid 122"
+ stop_ip_monitor $ipmout 1
+ # route add notification should not contain expanded nexthops
+ log_test $? 0 "IPv4 compat mode off - route add notification"
+
+ # route dump should not contain expanded nexthops
+ check_route "172.16.101.1" "172.16.101.1 nhid 122"
+ log_test $? 0 "IPv4 compat mode off - route dump"
+
+ # change in nexthop group should not generate route notification
+ ipmout=$(start_ip_monitor route)
+ run_cmd "$IP nexthop replace id 122 group 21/22"
+ stop_ip_monitor $ipmout 0
+ log_test $? 0 "IPv4 compat mode off - nexthop change"
+
+ # nexthop delete should not generate route notification
+ ipmout=$(start_ip_monitor route)
+ run_cmd "$IP nexthop del id 122"
+ stop_ip_monitor $ipmout 0
+ log_test $? 0 "IPv4 compat mode off - nexthop delete"
+
+ sysctl_nexthop_compat_mode_set 1 "IPv4"
+}
+
+ipv4_del_add_loop1()
+{
+ while :; do
+ $IP nexthop del id 100
+ $IP nexthop add id 100 via 172.16.1.2 dev veth1
+ done >/dev/null 2>&1
+}
+
+ipv4_grp_replace_loop()
+{
+ while :; do
+ $IP nexthop replace id 102 group 100/101
+ done >/dev/null 2>&1
+}
+
+ipv4_torture()
+{
+ local pid1
+ local pid2
+ local pid3
+ local pid4
+ local pid5
+
+ echo
+ echo "IPv4 runtime torture"
+ echo "--------------------"
+ if [ ! -x "$(command -v mausezahn)" ]; then
+ echo "SKIP: Could not run test; need mausezahn tool"
+ return
+ fi
+
+ run_cmd "$IP nexthop add id 100 via 172.16.1.2 dev veth1"
+ run_cmd "$IP nexthop add id 101 via 172.16.2.2 dev veth3"
+ run_cmd "$IP nexthop add id 102 group 100/101"
+ run_cmd "$IP route add 172.16.101.1 nhid 102"
+ run_cmd "$IP route add 172.16.101.2 nhid 102"
+
+ ipv4_del_add_loop1 &
+ pid1=$!
+ ipv4_grp_replace_loop &
+ pid2=$!
+ ip netns exec me ping -f 172.16.101.1 >/dev/null 2>&1 &
+ pid3=$!
+ ip netns exec me ping -f 172.16.101.2 >/dev/null 2>&1 &
+ pid4=$!
+ ip netns exec me mausezahn veth1 -B 172.16.101.2 -A 172.16.1.1 -c 0 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 &
+ pid5=$!
+
+ sleep 300
+ kill -9 $pid1 $pid2 $pid3 $pid4 $pid5
+
+ # if we did not crash, success
+ log_test 0 0 "IPv4 torture test"
+}
+
+basic()
+{
+ echo
+ echo "Basic functional tests"
+ echo "----------------------"
+ run_cmd "$IP nexthop ls"
+ log_test $? 0 "List with nothing defined"
+
+ run_cmd "$IP nexthop get id 1"
+ log_test $? 2 "Nexthop get on non-existent id"
+
+ # attempt to create nh without a device or gw - fails
+ run_cmd "$IP nexthop add id 1"
+ log_test $? 2 "Nexthop with no device or gateway"
+
+ # attempt to create nh with down device - fails
+ $IP li set veth1 down
+ run_cmd "$IP nexthop add id 1 dev veth1"
+ log_test $? 2 "Nexthop with down device"
+
+ # create nh with linkdown device - fails
+ $IP li set veth1 up
+ ip -netns peer li set veth2 down
+ run_cmd "$IP nexthop add id 1 dev veth1"
+ log_test $? 2 "Nexthop with device that is linkdown"
+ ip -netns peer li set veth2 up
+
+ # device only
+ run_cmd "$IP nexthop add id 1 dev veth1"
+ log_test $? 0 "Nexthop with device only"
+
+ # create nh with duplicate id
+ run_cmd "$IP nexthop add id 1 dev veth3"
+ log_test $? 2 "Nexthop with duplicate id"
+
+ # blackhole nexthop
+ run_cmd "$IP nexthop add id 2 blackhole"
+ log_test $? 0 "Blackhole nexthop"
+
+ # blackhole nexthop can not have other specs
+ run_cmd "$IP nexthop replace id 2 blackhole dev veth1"
+ log_test $? 2 "Blackhole nexthop with other attributes"
+
+ #
+ # groups
+ #
+
+ run_cmd "$IP nexthop add id 101 group 1"
+ log_test $? 0 "Create group"
+
+ run_cmd "$IP nexthop add id 102 group 2"
+ log_test $? 0 "Create group with blackhole nexthop"
+
+ # multipath group can not have a blackhole as 1 path
+ run_cmd "$IP nexthop add id 103 group 1/2"
+ log_test $? 2 "Create multipath group where 1 path is a blackhole"
+
+ # multipath group can not have a member replaced by a blackhole
+ run_cmd "$IP nexthop replace id 2 dev veth3"
+ run_cmd "$IP nexthop replace id 102 group 1/2"
+ run_cmd "$IP nexthop replace id 2 blackhole"
+ log_test $? 2 "Multipath group can not have a member replaced by blackhole"
+
+ # attempt to create group with non-existent nexthop
+ run_cmd "$IP nexthop add id 103 group 12"
+ log_test $? 2 "Create group with non-existent nexthop"
+
+ # attempt to create group with same nexthop
+ run_cmd "$IP nexthop add id 103 group 1/1"
+ log_test $? 2 "Create group with same nexthop multiple times"
+
+ # replace nexthop with a group - fails
+ run_cmd "$IP nexthop replace id 2 group 1"
+ log_test $? 2 "Replace nexthop with nexthop group"
+
+ # replace nexthop group with a nexthop - fails
+ run_cmd "$IP nexthop replace id 101 dev veth1"
+ log_test $? 2 "Replace nexthop group with nexthop"
+
+ # nexthop group with other attributes fail
+ run_cmd "$IP nexthop add id 104 group 1 dev veth1"
+ log_test $? 2 "Nexthop group and device"
+
+ # Tests to ensure that flushing works as expected.
+ run_cmd "$IP nexthop add id 105 blackhole proto 99"
+ run_cmd "$IP nexthop add id 106 blackhole proto 100"
+ run_cmd "$IP nexthop add id 107 blackhole proto 99"
+ run_cmd "$IP nexthop flush proto 99"
+ check_nexthop "id 105" ""
+ check_nexthop "id 106" "id 106 blackhole proto 100"
+ check_nexthop "id 107" ""
+ run_cmd "$IP nexthop flush proto 100"
+ check_nexthop "id 106" ""
+
+ run_cmd "$IP nexthop flush proto 100"
+ log_test $? 0 "Test proto flush"
+
+ run_cmd "$IP nexthop add id 104 group 1 blackhole"
+ log_test $? 2 "Nexthop group and blackhole"
+
+ $IP nexthop flush >/dev/null 2>&1
+}
+
+################################################################################
+# usage
+
+usage()
+{
+ cat <<EOF
+usage: ${0##*/} OPTS
+
+ -t <test> Test(s) to run (default: all)
+ (options: $ALL_TESTS)
+ -4 IPv4 tests only
+ -6 IPv6 tests only
+ -p Pause on fail
+ -P Pause after each test before cleanup
+ -v verbose mode (show commands and output)
+
+ Runtime test
+ -n num Number of nexthops to target
+ -N Use new style to install routes in DUT
+
+done
+EOF
+}
+
+################################################################################
+# main
+
+while getopts :t:pP46hv o
+do
+ case $o in
+ t) TESTS=$OPTARG;;
+ 4) TESTS=${IPV4_TESTS};;
+ 6) TESTS=${IPV6_TESTS};;
+ p) PAUSE_ON_FAIL=yes;;
+ P) PAUSE=yes;;
+ v) VERBOSE=$(($VERBOSE + 1));;
+ h) usage; exit 0;;
+ *) usage; exit 1;;
+ esac
+done
+
+# make sure we don't pause twice
+[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
+
+if [ "$(id -u)" -ne 0 ];then
+ echo "SKIP: Need root privileges"
+ exit $ksft_skip;
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+
+ip help 2>&1 | grep -q nexthop
+if [ $? -ne 0 ]; then
+ echo "SKIP: iproute2 too old, missing nexthop command"
+ exit $ksft_skip
+fi
+
+out=$(ip nexthop ls 2>&1 | grep -q "Operation not supported")
+if [ $? -eq 0 ]; then
+ echo "SKIP: kernel lacks nexthop support"
+ exit $ksft_skip
+fi
+
+for t in $TESTS
+do
+ case $t in
+ none) IP="ip -netns peer"; setup; exit 0;;
+ *) setup; $t; cleanup;;
+ esac
+done
+
+if [ "$TESTS" != "none" ]; then
+ printf "\nTests passed: %3d\n" ${nsuccess}
+ printf "Tests failed: %3d\n" ${nfail}
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/fib_rule_tests.sh b/tools/testing/selftests/net/fib_rule_tests.sh
new file mode 100755
index 000000000..a93e6b690
--- /dev/null
+++ b/tools/testing/selftests/net/fib_rule_tests.sh
@@ -0,0 +1,260 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test is for checking IPv4 and IPv6 FIB rules API
+
+ret=0
+
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+IP="ip -netns testns"
+
+RTABLE=100
+GW_IP4=192.51.100.2
+SRC_IP=192.51.100.3
+GW_IP6=2001:db8:1::2
+SRC_IP6=2001:db8:1::3
+
+DEV_ADDR=192.51.100.1
+DEV_ADDR6=2001:db8:1::1
+DEV=dummy0
+
+log_test()
+{
+ local rc=$1
+ local expected=$2
+ local msg="$3"
+
+ if [ ${rc} -eq ${expected} ]; then
+ nsuccess=$((nsuccess+1))
+ printf "\n TEST: %-50s [ OK ]\n" "${msg}"
+ else
+ ret=1
+ nfail=$((nfail+1))
+ printf "\n TEST: %-50s [FAIL]\n" "${msg}"
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+ fi
+}
+
+log_section()
+{
+ echo
+ echo "######################################################################"
+ echo "TEST SECTION: $*"
+ echo "######################################################################"
+}
+
+setup()
+{
+ set -e
+ ip netns add testns
+ $IP link set dev lo up
+
+ $IP link add dummy0 type dummy
+ $IP link set dev dummy0 up
+ $IP address add $DEV_ADDR/24 dev dummy0
+ $IP -6 address add $DEV_ADDR6/64 dev dummy0
+
+ set +e
+}
+
+cleanup()
+{
+ $IP link del dev dummy0 &> /dev/null
+ ip netns del testns
+}
+
+fib_check_iproute_support()
+{
+ ip rule help 2>&1 | grep -q $1
+ if [ $? -ne 0 ]; then
+ echo "SKIP: iproute2 iprule too old, missing $1 match"
+ return 1
+ fi
+
+ ip route get help 2>&1 | grep -q $2
+ if [ $? -ne 0 ]; then
+ echo "SKIP: iproute2 get route too old, missing $2 match"
+ return 1
+ fi
+
+ return 0
+}
+
+fib_rule6_del()
+{
+ $IP -6 rule del $1
+ log_test $? 0 "rule6 del $1"
+}
+
+fib_rule6_del_by_pref()
+{
+ pref=$($IP -6 rule show | grep "$1 lookup $TABLE" | cut -d ":" -f 1)
+ $IP -6 rule del pref $pref
+}
+
+fib_rule6_test_match_n_redirect()
+{
+ local match="$1"
+ local getmatch="$2"
+
+ $IP -6 rule add $match table $RTABLE
+ $IP -6 route get $GW_IP6 $getmatch | grep -q "table $RTABLE"
+ log_test $? 0 "rule6 check: $1"
+
+ fib_rule6_del_by_pref "$match"
+ log_test $? 0 "rule6 del by pref: $match"
+}
+
+fib_rule6_test()
+{
+ # setup the fib rule redirect route
+ $IP -6 route add table $RTABLE default via $GW_IP6 dev $DEV onlink
+
+ match="oif $DEV"
+ fib_rule6_test_match_n_redirect "$match" "$match" "oif redirect to table"
+
+ match="from $SRC_IP6 iif $DEV"
+ fib_rule6_test_match_n_redirect "$match" "$match" "iif redirect to table"
+
+ match="tos 0x10"
+ fib_rule6_test_match_n_redirect "$match" "$match" "tos redirect to table"
+
+ match="fwmark 0x64"
+ getmatch="mark 0x64"
+ fib_rule6_test_match_n_redirect "$match" "$getmatch" "fwmark redirect to table"
+
+ fib_check_iproute_support "uidrange" "uid"
+ if [ $? -eq 0 ]; then
+ match="uidrange 100-100"
+ getmatch="uid 100"
+ fib_rule6_test_match_n_redirect "$match" "$getmatch" "uid redirect to table"
+ fi
+
+ fib_check_iproute_support "sport" "sport"
+ if [ $? -eq 0 ]; then
+ match="sport 666 dport 777"
+ fib_rule6_test_match_n_redirect "$match" "$match" "sport and dport redirect to table"
+ fi
+
+ fib_check_iproute_support "ipproto" "ipproto"
+ if [ $? -eq 0 ]; then
+ match="ipproto tcp"
+ fib_rule6_test_match_n_redirect "$match" "$match" "ipproto match"
+ fi
+
+ fib_check_iproute_support "ipproto" "ipproto"
+ if [ $? -eq 0 ]; then
+ match="ipproto ipv6-icmp"
+ fib_rule6_test_match_n_redirect "$match" "$match" "ipproto ipv6-icmp match"
+ fi
+}
+
+fib_rule4_del()
+{
+ $IP rule del $1
+ log_test $? 0 "del $1"
+}
+
+fib_rule4_del_by_pref()
+{
+ pref=$($IP rule show | grep "$1 lookup $TABLE" | cut -d ":" -f 1)
+ $IP rule del pref $pref
+}
+
+fib_rule4_test_match_n_redirect()
+{
+ local match="$1"
+ local getmatch="$2"
+
+ $IP rule add $match table $RTABLE
+ $IP route get $GW_IP4 $getmatch | grep -q "table $RTABLE"
+ log_test $? 0 "rule4 check: $1"
+
+ fib_rule4_del_by_pref "$match"
+ log_test $? 0 "rule4 del by pref: $match"
+}
+
+fib_rule4_test()
+{
+ # setup the fib rule redirect route
+ $IP route add table $RTABLE default via $GW_IP4 dev $DEV onlink
+
+ match="oif $DEV"
+ fib_rule4_test_match_n_redirect "$match" "$match" "oif redirect to table"
+
+ # need enable forwarding and disable rp_filter temporarily as all the
+ # addresses are in the same subnet and egress device == ingress device.
+ ip netns exec testns sysctl -w net.ipv4.ip_forward=1
+ ip netns exec testns sysctl -w net.ipv4.conf.$DEV.rp_filter=0
+ match="from $SRC_IP iif $DEV"
+ fib_rule4_test_match_n_redirect "$match" "$match" "iif redirect to table"
+ ip netns exec testns sysctl -w net.ipv4.ip_forward=0
+
+ match="tos 0x10"
+ fib_rule4_test_match_n_redirect "$match" "$match" "tos redirect to table"
+
+ match="fwmark 0x64"
+ getmatch="mark 0x64"
+ fib_rule4_test_match_n_redirect "$match" "$getmatch" "fwmark redirect to table"
+
+ fib_check_iproute_support "uidrange" "uid"
+ if [ $? -eq 0 ]; then
+ match="uidrange 100-100"
+ getmatch="uid 100"
+ fib_rule4_test_match_n_redirect "$match" "$getmatch" "uid redirect to table"
+ fi
+
+ fib_check_iproute_support "sport" "sport"
+ if [ $? -eq 0 ]; then
+ match="sport 666 dport 777"
+ fib_rule4_test_match_n_redirect "$match" "$match" "sport and dport redirect to table"
+ fi
+
+ fib_check_iproute_support "ipproto" "ipproto"
+ if [ $? -eq 0 ]; then
+ match="ipproto tcp"
+ fib_rule4_test_match_n_redirect "$match" "$match" "ipproto tcp match"
+ fi
+
+ fib_check_iproute_support "ipproto" "ipproto"
+ if [ $? -eq 0 ]; then
+ match="ipproto icmp"
+ fib_rule4_test_match_n_redirect "$match" "$match" "ipproto icmp match"
+ fi
+}
+
+run_fibrule_tests()
+{
+ log_section "IPv4 fib rule"
+ fib_rule4_test
+ log_section "IPv6 fib rule"
+ fib_rule6_test
+}
+
+if [ "$(id -u)" -ne 0 ];then
+ echo "SKIP: Need root privileges"
+ exit 0
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+ echo "SKIP: Could not run test without ip tool"
+ exit 0
+fi
+
+# start clean
+cleanup &> /dev/null
+setup
+run_fibrule_tests
+cleanup
+
+if [ "$TESTS" != "none" ]; then
+ printf "\nTests passed: %3d\n" ${nsuccess}
+ printf "Tests failed: %3d\n" ${nfail}
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh
new file mode 100755
index 000000000..168101637
--- /dev/null
+++ b/tools/testing/selftests/net/fib_tests.sh
@@ -0,0 +1,1841 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test is for checking IPv4 and IPv6 FIB behavior in response to
+# different events.
+
+ret=0
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+# all tests in this script. Can be overridden with -t option
+TESTS="unregister down carrier nexthop suppress ipv6_rt ipv4_rt ipv6_addr_metric ipv4_addr_metric ipv6_route_metrics ipv4_route_metrics ipv4_route_v6_gw rp_filter ipv4_del_addr"
+
+VERBOSE=0
+PAUSE_ON_FAIL=no
+PAUSE=no
+IP="ip -netns ns1"
+NS_EXEC="ip netns exec ns1"
+
+which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
+
+log_test()
+{
+ local rc=$1
+ local expected=$2
+ local msg="$3"
+
+ if [ ${rc} -eq ${expected} ]; then
+ printf " TEST: %-60s [ OK ]\n" "${msg}"
+ nsuccess=$((nsuccess+1))
+ else
+ ret=1
+ nfail=$((nfail+1))
+ printf " TEST: %-60s [FAIL]\n" "${msg}"
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+ fi
+
+ if [ "${PAUSE}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+}
+
+setup()
+{
+ set -e
+ ip netns add ns1
+ ip netns set ns1 auto
+ $IP link set dev lo up
+ ip netns exec ns1 sysctl -qw net.ipv4.ip_forward=1
+ ip netns exec ns1 sysctl -qw net.ipv6.conf.all.forwarding=1
+
+ $IP link add dummy0 type dummy
+ $IP link set dev dummy0 up
+ $IP address add 198.51.100.1/24 dev dummy0
+ $IP -6 address add 2001:db8:1::1/64 dev dummy0
+ set +e
+
+}
+
+cleanup()
+{
+ $IP link del dev dummy0 &> /dev/null
+ ip netns del ns1 &> /dev/null
+ ip netns del ns2 &> /dev/null
+}
+
+get_linklocal()
+{
+ local dev=$1
+ local addr
+
+ addr=$($IP -6 -br addr show dev ${dev} | \
+ awk '{
+ for (i = 3; i <= NF; ++i) {
+ if ($i ~ /^fe80/)
+ print $i
+ }
+ }'
+ )
+ addr=${addr/\/*}
+
+ [ -z "$addr" ] && return 1
+
+ echo $addr
+
+ return 0
+}
+
+fib_unreg_unicast_test()
+{
+ echo
+ echo "Single path route test"
+
+ setup
+
+ echo " Start point"
+ $IP route get fibmatch 198.51.100.2 &> /dev/null
+ log_test $? 0 "IPv4 fibmatch"
+ $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
+ log_test $? 0 "IPv6 fibmatch"
+
+ set -e
+ $IP link del dev dummy0
+ set +e
+
+ echo " Nexthop device deleted"
+ $IP route get fibmatch 198.51.100.2 &> /dev/null
+ log_test $? 2 "IPv4 fibmatch - no route"
+ $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
+ log_test $? 2 "IPv6 fibmatch - no route"
+
+ cleanup
+}
+
+fib_unreg_multipath_test()
+{
+
+ echo
+ echo "Multipath route test"
+
+ setup
+
+ set -e
+ $IP link add dummy1 type dummy
+ $IP link set dev dummy1 up
+ $IP address add 192.0.2.1/24 dev dummy1
+ $IP -6 address add 2001:db8:2::1/64 dev dummy1
+
+ $IP route add 203.0.113.0/24 \
+ nexthop via 198.51.100.2 dev dummy0 \
+ nexthop via 192.0.2.2 dev dummy1
+ $IP -6 route add 2001:db8:3::/64 \
+ nexthop via 2001:db8:1::2 dev dummy0 \
+ nexthop via 2001:db8:2::2 dev dummy1
+ set +e
+
+ echo " Start point"
+ $IP route get fibmatch 203.0.113.1 &> /dev/null
+ log_test $? 0 "IPv4 fibmatch"
+ $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
+ log_test $? 0 "IPv6 fibmatch"
+
+ set -e
+ $IP link del dev dummy0
+ set +e
+
+ echo " One nexthop device deleted"
+ $IP route get fibmatch 203.0.113.1 &> /dev/null
+ log_test $? 2 "IPv4 - multipath route removed on delete"
+
+ $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
+ # In IPv6 we do not flush the entire multipath route.
+ log_test $? 0 "IPv6 - multipath down to single path"
+
+ set -e
+ $IP link del dev dummy1
+ set +e
+
+ echo " Second nexthop device deleted"
+ $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
+ log_test $? 2 "IPv6 - no route"
+
+ cleanup
+}
+
+fib_unreg_test()
+{
+ fib_unreg_unicast_test
+ fib_unreg_multipath_test
+}
+
+fib_down_unicast_test()
+{
+ echo
+ echo "Single path, admin down"
+
+ setup
+
+ echo " Start point"
+ $IP route get fibmatch 198.51.100.2 &> /dev/null
+ log_test $? 0 "IPv4 fibmatch"
+ $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
+ log_test $? 0 "IPv6 fibmatch"
+
+ set -e
+ $IP link set dev dummy0 down
+ set +e
+
+ echo " Route deleted on down"
+ $IP route get fibmatch 198.51.100.2 &> /dev/null
+ log_test $? 2 "IPv4 fibmatch"
+ $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
+ log_test $? 2 "IPv6 fibmatch"
+
+ cleanup
+}
+
+fib_down_multipath_test_do()
+{
+ local down_dev=$1
+ local up_dev=$2
+
+ $IP route get fibmatch 203.0.113.1 \
+ oif $down_dev &> /dev/null
+ log_test $? 2 "IPv4 fibmatch on down device"
+ $IP -6 route get fibmatch 2001:db8:3::1 \
+ oif $down_dev &> /dev/null
+ log_test $? 2 "IPv6 fibmatch on down device"
+
+ $IP route get fibmatch 203.0.113.1 \
+ oif $up_dev &> /dev/null
+ log_test $? 0 "IPv4 fibmatch on up device"
+ $IP -6 route get fibmatch 2001:db8:3::1 \
+ oif $up_dev &> /dev/null
+ log_test $? 0 "IPv6 fibmatch on up device"
+
+ $IP route get fibmatch 203.0.113.1 | \
+ grep $down_dev | grep -q "dead linkdown"
+ log_test $? 0 "IPv4 flags on down device"
+ $IP -6 route get fibmatch 2001:db8:3::1 | \
+ grep $down_dev | grep -q "dead linkdown"
+ log_test $? 0 "IPv6 flags on down device"
+
+ $IP route get fibmatch 203.0.113.1 | \
+ grep $up_dev | grep -q "dead linkdown"
+ log_test $? 1 "IPv4 flags on up device"
+ $IP -6 route get fibmatch 2001:db8:3::1 | \
+ grep $up_dev | grep -q "dead linkdown"
+ log_test $? 1 "IPv6 flags on up device"
+}
+
+fib_down_multipath_test()
+{
+ echo
+ echo "Admin down multipath"
+
+ setup
+
+ set -e
+ $IP link add dummy1 type dummy
+ $IP link set dev dummy1 up
+
+ $IP address add 192.0.2.1/24 dev dummy1
+ $IP -6 address add 2001:db8:2::1/64 dev dummy1
+
+ $IP route add 203.0.113.0/24 \
+ nexthop via 198.51.100.2 dev dummy0 \
+ nexthop via 192.0.2.2 dev dummy1
+ $IP -6 route add 2001:db8:3::/64 \
+ nexthop via 2001:db8:1::2 dev dummy0 \
+ nexthop via 2001:db8:2::2 dev dummy1
+ set +e
+
+ echo " Verify start point"
+ $IP route get fibmatch 203.0.113.1 &> /dev/null
+ log_test $? 0 "IPv4 fibmatch"
+
+ $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
+ log_test $? 0 "IPv6 fibmatch"
+
+ set -e
+ $IP link set dev dummy0 down
+ set +e
+
+ echo " One device down, one up"
+ fib_down_multipath_test_do "dummy0" "dummy1"
+
+ set -e
+ $IP link set dev dummy0 up
+ $IP link set dev dummy1 down
+ set +e
+
+ echo " Other device down and up"
+ fib_down_multipath_test_do "dummy1" "dummy0"
+
+ set -e
+ $IP link set dev dummy0 down
+ set +e
+
+ echo " Both devices down"
+ $IP route get fibmatch 203.0.113.1 &> /dev/null
+ log_test $? 2 "IPv4 fibmatch"
+ $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
+ log_test $? 2 "IPv6 fibmatch"
+
+ $IP link del dev dummy1
+ cleanup
+}
+
+fib_down_test()
+{
+ fib_down_unicast_test
+ fib_down_multipath_test
+}
+
+# Local routes should not be affected when carrier changes.
+fib_carrier_local_test()
+{
+ echo
+ echo "Local carrier tests - single path"
+
+ setup
+
+ set -e
+ $IP link set dev dummy0 carrier on
+ set +e
+
+ echo " Start point"
+ $IP route get fibmatch 198.51.100.1 &> /dev/null
+ log_test $? 0 "IPv4 fibmatch"
+ $IP -6 route get fibmatch 2001:db8:1::1 &> /dev/null
+ log_test $? 0 "IPv6 fibmatch"
+
+ $IP route get fibmatch 198.51.100.1 | \
+ grep -q "linkdown"
+ log_test $? 1 "IPv4 - no linkdown flag"
+ $IP -6 route get fibmatch 2001:db8:1::1 | \
+ grep -q "linkdown"
+ log_test $? 1 "IPv6 - no linkdown flag"
+
+ set -e
+ $IP link set dev dummy0 carrier off
+ sleep 1
+ set +e
+
+ echo " Carrier off on nexthop"
+ $IP route get fibmatch 198.51.100.1 &> /dev/null
+ log_test $? 0 "IPv4 fibmatch"
+ $IP -6 route get fibmatch 2001:db8:1::1 &> /dev/null
+ log_test $? 0 "IPv6 fibmatch"
+
+ $IP route get fibmatch 198.51.100.1 | \
+ grep -q "linkdown"
+ log_test $? 1 "IPv4 - linkdown flag set"
+ $IP -6 route get fibmatch 2001:db8:1::1 | \
+ grep -q "linkdown"
+ log_test $? 1 "IPv6 - linkdown flag set"
+
+ set -e
+ $IP address add 192.0.2.1/24 dev dummy0
+ $IP -6 address add 2001:db8:2::1/64 dev dummy0
+ set +e
+
+ echo " Route to local address with carrier down"
+ $IP route get fibmatch 192.0.2.1 &> /dev/null
+ log_test $? 0 "IPv4 fibmatch"
+ $IP -6 route get fibmatch 2001:db8:2::1 &> /dev/null
+ log_test $? 0 "IPv6 fibmatch"
+
+ $IP route get fibmatch 192.0.2.1 | \
+ grep -q "linkdown"
+ log_test $? 1 "IPv4 linkdown flag set"
+ $IP -6 route get fibmatch 2001:db8:2::1 | \
+ grep -q "linkdown"
+ log_test $? 1 "IPv6 linkdown flag set"
+
+ cleanup
+}
+
+fib_carrier_unicast_test()
+{
+ ret=0
+
+ echo
+ echo "Single path route carrier test"
+
+ setup
+
+ set -e
+ $IP link set dev dummy0 carrier on
+ set +e
+
+ echo " Start point"
+ $IP route get fibmatch 198.51.100.2 &> /dev/null
+ log_test $? 0 "IPv4 fibmatch"
+ $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
+ log_test $? 0 "IPv6 fibmatch"
+
+ $IP route get fibmatch 198.51.100.2 | \
+ grep -q "linkdown"
+ log_test $? 1 "IPv4 no linkdown flag"
+ $IP -6 route get fibmatch 2001:db8:1::2 | \
+ grep -q "linkdown"
+ log_test $? 1 "IPv6 no linkdown flag"
+
+ set -e
+ $IP link set dev dummy0 carrier off
+ sleep 1
+ set +e
+
+ echo " Carrier down"
+ $IP route get fibmatch 198.51.100.2 &> /dev/null
+ log_test $? 0 "IPv4 fibmatch"
+ $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
+ log_test $? 0 "IPv6 fibmatch"
+
+ $IP route get fibmatch 198.51.100.2 | \
+ grep -q "linkdown"
+ log_test $? 0 "IPv4 linkdown flag set"
+ $IP -6 route get fibmatch 2001:db8:1::2 | \
+ grep -q "linkdown"
+ log_test $? 0 "IPv6 linkdown flag set"
+
+ set -e
+ $IP address add 192.0.2.1/24 dev dummy0
+ $IP -6 address add 2001:db8:2::1/64 dev dummy0
+ set +e
+
+ echo " Second address added with carrier down"
+ $IP route get fibmatch 192.0.2.2 &> /dev/null
+ log_test $? 0 "IPv4 fibmatch"
+ $IP -6 route get fibmatch 2001:db8:2::2 &> /dev/null
+ log_test $? 0 "IPv6 fibmatch"
+
+ $IP route get fibmatch 192.0.2.2 | \
+ grep -q "linkdown"
+ log_test $? 0 "IPv4 linkdown flag set"
+ $IP -6 route get fibmatch 2001:db8:2::2 | \
+ grep -q "linkdown"
+ log_test $? 0 "IPv6 linkdown flag set"
+
+ cleanup
+}
+
+fib_carrier_test()
+{
+ fib_carrier_local_test
+ fib_carrier_unicast_test
+}
+
+fib_rp_filter_test()
+{
+ echo
+ echo "IPv4 rp_filter tests"
+
+ setup
+
+ set -e
+ ip netns add ns2
+ ip netns set ns2 auto
+
+ ip -netns ns2 link set dev lo up
+
+ $IP link add name veth1 type veth peer name veth2
+ $IP link set dev veth2 netns ns2
+ $IP address add 192.0.2.1/24 dev veth1
+ ip -netns ns2 address add 192.0.2.1/24 dev veth2
+ $IP link set dev veth1 up
+ ip -netns ns2 link set dev veth2 up
+
+ $IP link set dev lo address 52:54:00:6a:c7:5e
+ $IP link set dev veth1 address 52:54:00:6a:c7:5e
+ ip -netns ns2 link set dev lo address 52:54:00:6a:c7:5e
+ ip -netns ns2 link set dev veth2 address 52:54:00:6a:c7:5e
+
+ # 1. (ns2) redirect lo's egress to veth2's egress
+ ip netns exec ns2 tc qdisc add dev lo parent root handle 1: fq_codel
+ ip netns exec ns2 tc filter add dev lo parent 1: protocol arp basic \
+ action mirred egress redirect dev veth2
+ ip netns exec ns2 tc filter add dev lo parent 1: protocol ip basic \
+ action mirred egress redirect dev veth2
+
+ # 2. (ns1) redirect veth1's ingress to lo's ingress
+ $NS_EXEC tc qdisc add dev veth1 ingress
+ $NS_EXEC tc filter add dev veth1 ingress protocol arp basic \
+ action mirred ingress redirect dev lo
+ $NS_EXEC tc filter add dev veth1 ingress protocol ip basic \
+ action mirred ingress redirect dev lo
+
+ # 3. (ns1) redirect lo's egress to veth1's egress
+ $NS_EXEC tc qdisc add dev lo parent root handle 1: fq_codel
+ $NS_EXEC tc filter add dev lo parent 1: protocol arp basic \
+ action mirred egress redirect dev veth1
+ $NS_EXEC tc filter add dev lo parent 1: protocol ip basic \
+ action mirred egress redirect dev veth1
+
+ # 4. (ns2) redirect veth2's ingress to lo's ingress
+ ip netns exec ns2 tc qdisc add dev veth2 ingress
+ ip netns exec ns2 tc filter add dev veth2 ingress protocol arp basic \
+ action mirred ingress redirect dev lo
+ ip netns exec ns2 tc filter add dev veth2 ingress protocol ip basic \
+ action mirred ingress redirect dev lo
+
+ $NS_EXEC sysctl -qw net.ipv4.conf.all.rp_filter=1
+ $NS_EXEC sysctl -qw net.ipv4.conf.all.accept_local=1
+ $NS_EXEC sysctl -qw net.ipv4.conf.all.route_localnet=1
+ ip netns exec ns2 sysctl -qw net.ipv4.conf.all.rp_filter=1
+ ip netns exec ns2 sysctl -qw net.ipv4.conf.all.accept_local=1
+ ip netns exec ns2 sysctl -qw net.ipv4.conf.all.route_localnet=1
+ set +e
+
+ run_cmd "ip netns exec ns2 ping -w1 -c1 192.0.2.1"
+ log_test $? 0 "rp_filter passes local packets"
+
+ run_cmd "ip netns exec ns2 ping -w1 -c1 127.0.0.1"
+ log_test $? 0 "rp_filter passes loopback packets"
+
+ cleanup
+}
+
+################################################################################
+# Tests on nexthop spec
+
+# run 'ip route add' with given spec
+add_rt()
+{
+ local desc="$1"
+ local erc=$2
+ local vrf=$3
+ local pfx=$4
+ local gw=$5
+ local dev=$6
+ local cmd out rc
+
+ [ "$vrf" = "-" ] && vrf="default"
+ [ -n "$gw" ] && gw="via $gw"
+ [ -n "$dev" ] && dev="dev $dev"
+
+ cmd="$IP route add vrf $vrf $pfx $gw $dev"
+ if [ "$VERBOSE" = "1" ]; then
+ printf "\n COMMAND: $cmd\n"
+ fi
+
+ out=$(eval $cmd 2>&1)
+ rc=$?
+ if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+ echo " $out"
+ fi
+ log_test $rc $erc "$desc"
+}
+
+fib4_nexthop()
+{
+ echo
+ echo "IPv4 nexthop tests"
+
+ echo "<<< write me >>>"
+}
+
+fib6_nexthop()
+{
+ local lldummy=$(get_linklocal dummy0)
+ local llv1=$(get_linklocal dummy0)
+
+ if [ -z "$lldummy" ]; then
+ echo "Failed to get linklocal address for dummy0"
+ return 1
+ fi
+ if [ -z "$llv1" ]; then
+ echo "Failed to get linklocal address for veth1"
+ return 1
+ fi
+
+ echo
+ echo "IPv6 nexthop tests"
+
+ add_rt "Directly connected nexthop, unicast address" 0 \
+ - 2001:db8:101::/64 2001:db8:1::2
+ add_rt "Directly connected nexthop, unicast address with device" 0 \
+ - 2001:db8:102::/64 2001:db8:1::2 "dummy0"
+ add_rt "Gateway is linklocal address" 0 \
+ - 2001:db8:103::1/64 $llv1 "veth0"
+
+ # fails because LL address requires a device
+ add_rt "Gateway is linklocal address, no device" 2 \
+ - 2001:db8:104::1/64 $llv1
+
+ # local address can not be a gateway
+ add_rt "Gateway can not be local unicast address" 2 \
+ - 2001:db8:105::/64 2001:db8:1::1
+ add_rt "Gateway can not be local unicast address, with device" 2 \
+ - 2001:db8:106::/64 2001:db8:1::1 "dummy0"
+ add_rt "Gateway can not be a local linklocal address" 2 \
+ - 2001:db8:107::1/64 $lldummy "dummy0"
+
+ # VRF tests
+ add_rt "Gateway can be local address in a VRF" 0 \
+ - 2001:db8:108::/64 2001:db8:51::2
+ add_rt "Gateway can be local address in a VRF, with device" 0 \
+ - 2001:db8:109::/64 2001:db8:51::2 "veth0"
+ add_rt "Gateway can be local linklocal address in a VRF" 0 \
+ - 2001:db8:110::1/64 $llv1 "veth0"
+
+ add_rt "Redirect to VRF lookup" 0 \
+ - 2001:db8:111::/64 "" "red"
+
+ add_rt "VRF route, gateway can be local address in default VRF" 0 \
+ red 2001:db8:112::/64 2001:db8:51::1
+
+ # local address in same VRF fails
+ add_rt "VRF route, gateway can not be a local address" 2 \
+ red 2001:db8:113::1/64 2001:db8:2::1
+ add_rt "VRF route, gateway can not be a local addr with device" 2 \
+ red 2001:db8:114::1/64 2001:db8:2::1 "dummy1"
+}
+
+# Default VRF:
+# dummy0 - 198.51.100.1/24 2001:db8:1::1/64
+# veth0 - 192.0.2.1/24 2001:db8:51::1/64
+#
+# VRF red:
+# dummy1 - 192.168.2.1/24 2001:db8:2::1/64
+# veth1 - 192.0.2.2/24 2001:db8:51::2/64
+#
+# [ dummy0 veth0 ]--[ veth1 dummy1 ]
+
+fib_nexthop_test()
+{
+ setup
+
+ set -e
+
+ $IP -4 rule add pref 32765 table local
+ $IP -4 rule del pref 0
+ $IP -6 rule add pref 32765 table local
+ $IP -6 rule del pref 0
+
+ $IP link add red type vrf table 1
+ $IP link set red up
+ $IP -4 route add vrf red unreachable default metric 4278198272
+ $IP -6 route add vrf red unreachable default metric 4278198272
+
+ $IP link add veth0 type veth peer name veth1
+ $IP link set dev veth0 up
+ $IP address add 192.0.2.1/24 dev veth0
+ $IP -6 address add 2001:db8:51::1/64 dev veth0
+
+ $IP link set dev veth1 vrf red up
+ $IP address add 192.0.2.2/24 dev veth1
+ $IP -6 address add 2001:db8:51::2/64 dev veth1
+
+ $IP link add dummy1 type dummy
+ $IP link set dev dummy1 vrf red up
+ $IP address add 192.168.2.1/24 dev dummy1
+ $IP -6 address add 2001:db8:2::1/64 dev dummy1
+ set +e
+
+ sleep 1
+ fib4_nexthop
+ fib6_nexthop
+
+ (
+ $IP link del dev dummy1
+ $IP link del veth0
+ $IP link del red
+ ) 2>/dev/null
+ cleanup
+}
+
+fib_suppress_test()
+{
+ echo
+ echo "FIB rule with suppress_prefixlength"
+ setup
+
+ $IP link add dummy1 type dummy
+ $IP link set dummy1 up
+ $IP -6 route add default dev dummy1
+ $IP -6 rule add table main suppress_prefixlength 0
+ ping -f -c 1000 -W 1 1234::1 >/dev/null 2>&1
+ $IP -6 rule del table main suppress_prefixlength 0
+ $IP link del dummy1
+
+ # If we got here without crashing, we're good.
+ log_test 0 0 "FIB rule suppress test"
+
+ cleanup
+}
+
+################################################################################
+# Tests on route add and replace
+
+run_cmd()
+{
+ local cmd="$1"
+ local out
+ local stderr="2>/dev/null"
+
+ if [ "$VERBOSE" = "1" ]; then
+ printf " COMMAND: $cmd\n"
+ stderr=
+ fi
+
+ out=$(eval $cmd $stderr)
+ rc=$?
+ if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+ echo " $out"
+ fi
+
+ [ "$VERBOSE" = "1" ] && echo
+
+ return $rc
+}
+
+check_expected()
+{
+ local out="$1"
+ local expected="$2"
+ local rc=0
+
+ [ "${out}" = "${expected}" ] && return 0
+
+ if [ -z "${out}" ]; then
+ if [ "$VERBOSE" = "1" ]; then
+ printf "\nNo route entry found\n"
+ printf "Expected:\n"
+ printf " ${expected}\n"
+ fi
+ return 1
+ fi
+
+ # tricky way to convert output to 1-line without ip's
+ # messy '\'; this drops all extra white space
+ out=$(echo ${out})
+ if [ "${out}" != "${expected}" ]; then
+ rc=1
+ if [ "${VERBOSE}" = "1" ]; then
+ printf " Unexpected route entry. Have:\n"
+ printf " ${out}\n"
+ printf " Expected:\n"
+ printf " ${expected}\n\n"
+ fi
+ fi
+
+ return $rc
+}
+
+# add route for a prefix, flushing any existing routes first
+# expected to be the first step of a test
+add_route6()
+{
+ local pfx="$1"
+ local nh="$2"
+ local out
+
+ if [ "$VERBOSE" = "1" ]; then
+ echo
+ echo " ##################################################"
+ echo
+ fi
+
+ run_cmd "$IP -6 ro flush ${pfx}"
+ [ $? -ne 0 ] && exit 1
+
+ out=$($IP -6 ro ls match ${pfx})
+ if [ -n "$out" ]; then
+ echo "Failed to flush routes for prefix used for tests."
+ exit 1
+ fi
+
+ run_cmd "$IP -6 ro add ${pfx} ${nh}"
+ if [ $? -ne 0 ]; then
+ echo "Failed to add initial route for test."
+ exit 1
+ fi
+}
+
+# add initial route - used in replace route tests
+add_initial_route6()
+{
+ add_route6 "2001:db8:104::/64" "$1"
+}
+
+check_route6()
+{
+ local pfx
+ local expected="$1"
+ local out
+ local rc=0
+
+ set -- $expected
+ pfx=$1
+
+ out=$($IP -6 ro ls match ${pfx} | sed -e 's/ pref medium//')
+ check_expected "${out}" "${expected}"
+}
+
+route_cleanup()
+{
+ $IP li del red 2>/dev/null
+ $IP li del dummy1 2>/dev/null
+ $IP li del veth1 2>/dev/null
+ $IP li del veth3 2>/dev/null
+
+ cleanup &> /dev/null
+}
+
+route_setup()
+{
+ route_cleanup
+ setup
+
+ [ "${VERBOSE}" = "1" ] && set -x
+ set -e
+
+ ip netns add ns2
+ ip netns set ns2 auto
+ ip -netns ns2 link set dev lo up
+ ip netns exec ns2 sysctl -qw net.ipv4.ip_forward=1
+ ip netns exec ns2 sysctl -qw net.ipv6.conf.all.forwarding=1
+
+ $IP li add veth1 type veth peer name veth2
+ $IP li add veth3 type veth peer name veth4
+
+ $IP li set veth1 up
+ $IP li set veth3 up
+ $IP li set veth2 netns ns2 up
+ $IP li set veth4 netns ns2 up
+ ip -netns ns2 li add dummy1 type dummy
+ ip -netns ns2 li set dummy1 up
+
+ $IP -6 addr add 2001:db8:101::1/64 dev veth1 nodad
+ $IP -6 addr add 2001:db8:103::1/64 dev veth3 nodad
+ $IP addr add 172.16.101.1/24 dev veth1
+ $IP addr add 172.16.103.1/24 dev veth3
+
+ ip -netns ns2 -6 addr add 2001:db8:101::2/64 dev veth2 nodad
+ ip -netns ns2 -6 addr add 2001:db8:103::2/64 dev veth4 nodad
+ ip -netns ns2 -6 addr add 2001:db8:104::1/64 dev dummy1 nodad
+
+ ip -netns ns2 addr add 172.16.101.2/24 dev veth2
+ ip -netns ns2 addr add 172.16.103.2/24 dev veth4
+ ip -netns ns2 addr add 172.16.104.1/24 dev dummy1
+
+ set +e
+}
+
+# assumption is that basic add of a single path route works
+# otherwise just adding an address on an interface is broken
+ipv6_rt_add()
+{
+ local rc
+
+ echo
+ echo "IPv6 route add / append tests"
+
+ # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
+ add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
+ run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::2"
+ log_test $? 2 "Attempt to add duplicate route - gw"
+
+ # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
+ add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
+ run_cmd "$IP -6 ro add 2001:db8:104::/64 dev veth3"
+ log_test $? 2 "Attempt to add duplicate route - dev only"
+
+ # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
+ add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
+ run_cmd "$IP -6 ro add unreachable 2001:db8:104::/64"
+ log_test $? 2 "Attempt to add duplicate route - reject route"
+
+ # route append with same prefix adds a new route
+ # - iproute2 sets NLM_F_CREATE | NLM_F_APPEND
+ add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
+ run_cmd "$IP -6 ro append 2001:db8:104::/64 via 2001:db8:103::2"
+ check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
+ log_test $? 0 "Append nexthop to existing route - gw"
+
+ # insert mpath directly
+ add_route6 "2001:db8:104::/64" "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+ check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
+ log_test $? 0 "Add multipath route"
+
+ add_route6 "2001:db8:104::/64" "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+ run_cmd "$IP -6 ro add 2001:db8:104::/64 nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+ log_test $? 2 "Attempt to add duplicate multipath route"
+
+ # insert of a second route without append but different metric
+ add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
+ run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::2 metric 512"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::3 metric 256"
+ rc=$?
+ fi
+ log_test $rc 0 "Route add with different metrics"
+
+ run_cmd "$IP -6 ro del 2001:db8:104::/64 metric 512"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ check_route6 "2001:db8:104::/64 via 2001:db8:103::3 dev veth3 metric 256 2001:db8:104::/64 via 2001:db8:101::2 dev veth1 metric 1024"
+ rc=$?
+ fi
+ log_test $rc 0 "Route delete with metric"
+}
+
+ipv6_rt_replace_single()
+{
+ # single path with single path
+ #
+ add_initial_route6 "via 2001:db8:101::2"
+ run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:103::2"
+ check_route6 "2001:db8:104::/64 via 2001:db8:103::2 dev veth3 metric 1024"
+ log_test $? 0 "Single path with single path"
+
+ # single path with multipath
+ #
+ add_initial_route6 "nexthop via 2001:db8:101::2"
+ run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::2"
+ check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::3 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
+ log_test $? 0 "Single path with multipath"
+
+ # single path with single path using MULTIPATH attribute
+ #
+ add_initial_route6 "via 2001:db8:101::2"
+ run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:103::2"
+ check_route6 "2001:db8:104::/64 via 2001:db8:103::2 dev veth3 metric 1024"
+ log_test $? 0 "Single path with single path via multipath attribute"
+
+ # route replace fails - invalid nexthop
+ add_initial_route6 "via 2001:db8:101::2"
+ run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:104::2"
+ if [ $? -eq 0 ]; then
+ # previous command is expected to fail so if it returns 0
+ # that means the test failed.
+ log_test 0 1 "Invalid nexthop"
+ else
+ check_route6 "2001:db8:104::/64 via 2001:db8:101::2 dev veth1 metric 1024"
+ log_test $? 0 "Invalid nexthop"
+ fi
+
+ # replace non-existent route
+ # - note use of change versus replace since ip adds NLM_F_CREATE
+ # for replace
+ add_initial_route6 "via 2001:db8:101::2"
+ run_cmd "$IP -6 ro change 2001:db8:105::/64 via 2001:db8:101::2"
+ log_test $? 2 "Single path - replace of non-existent route"
+}
+
+ipv6_rt_replace_mpath()
+{
+ # multipath with multipath
+ add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+ run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::3"
+ check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::3 dev veth1 weight 1 nexthop via 2001:db8:103::3 dev veth3 weight 1"
+ log_test $? 0 "Multipath with multipath"
+
+ # multipath with single
+ add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+ run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:101::3"
+ check_route6 "2001:db8:104::/64 via 2001:db8:101::3 dev veth1 metric 1024"
+ log_test $? 0 "Multipath with single path"
+
+ # multipath with single
+ add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+ run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3"
+ check_route6 "2001:db8:104::/64 via 2001:db8:101::3 dev veth1 metric 1024"
+ log_test $? 0 "Multipath with single path via multipath attribute"
+
+ # multipath with dev-only
+ add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+ run_cmd "$IP -6 ro replace 2001:db8:104::/64 dev veth1"
+ check_route6 "2001:db8:104::/64 dev veth1 metric 1024"
+ log_test $? 0 "Multipath with dev-only"
+
+ # route replace fails - invalid nexthop 1
+ add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+ run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:111::3 nexthop via 2001:db8:103::3"
+ check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
+ log_test $? 0 "Multipath - invalid first nexthop"
+
+ # route replace fails - invalid nexthop 2
+ add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+ run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:113::3"
+ check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
+ log_test $? 0 "Multipath - invalid second nexthop"
+
+ # multipath non-existent route
+ add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+ run_cmd "$IP -6 ro change 2001:db8:105::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::3"
+ log_test $? 2 "Multipath - replace of non-existent route"
+}
+
+ipv6_rt_replace()
+{
+ echo
+ echo "IPv6 route replace tests"
+
+ ipv6_rt_replace_single
+ ipv6_rt_replace_mpath
+}
+
+ipv6_route_test()
+{
+ route_setup
+
+ ipv6_rt_add
+ ipv6_rt_replace
+
+ route_cleanup
+}
+
+ip_addr_metric_check()
+{
+ ip addr help 2>&1 | grep -q metric
+ if [ $? -ne 0 ]; then
+ echo "iproute2 command does not support metric for addresses. Skipping test"
+ return 1
+ fi
+
+ return 0
+}
+
+ipv6_addr_metric_test()
+{
+ local rc
+
+ echo
+ echo "IPv6 prefix route tests"
+
+ ip_addr_metric_check || return 1
+
+ setup
+
+ set -e
+ $IP li add dummy1 type dummy
+ $IP li add dummy2 type dummy
+ $IP li set dummy1 up
+ $IP li set dummy2 up
+
+ # default entry is metric 256
+ run_cmd "$IP -6 addr add dev dummy1 2001:db8:104::1/64"
+ run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::2/64"
+ set +e
+
+ check_route6 "2001:db8:104::/64 dev dummy1 proto kernel metric 256 2001:db8:104::/64 dev dummy2 proto kernel metric 256"
+ log_test $? 0 "Default metric"
+
+ set -e
+ run_cmd "$IP -6 addr flush dev dummy1"
+ run_cmd "$IP -6 addr add dev dummy1 2001:db8:104::1/64 metric 257"
+ set +e
+
+ check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 256 2001:db8:104::/64 dev dummy1 proto kernel metric 257"
+ log_test $? 0 "User specified metric on first device"
+
+ set -e
+ run_cmd "$IP -6 addr flush dev dummy2"
+ run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::2/64 metric 258"
+ set +e
+
+ check_route6 "2001:db8:104::/64 dev dummy1 proto kernel metric 257 2001:db8:104::/64 dev dummy2 proto kernel metric 258"
+ log_test $? 0 "User specified metric on second device"
+
+ run_cmd "$IP -6 addr del dev dummy1 2001:db8:104::1/64 metric 257"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 258"
+ rc=$?
+ fi
+ log_test $rc 0 "Delete of address on first device"
+
+ run_cmd "$IP -6 addr change dev dummy2 2001:db8:104::2/64 metric 259"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 259"
+ rc=$?
+ fi
+ log_test $rc 0 "Modify metric of address"
+
+ # verify prefix route removed on down
+ run_cmd "ip netns exec ns1 sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1"
+ run_cmd "$IP li set dev dummy2 down"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ out=$($IP -6 ro ls match 2001:db8:104::/64)
+ check_expected "${out}" ""
+ rc=$?
+ fi
+ log_test $rc 0 "Prefix route removed on link down"
+
+ # verify prefix route re-inserted with assigned metric
+ run_cmd "$IP li set dev dummy2 up"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 259"
+ rc=$?
+ fi
+ log_test $rc 0 "Prefix route with metric on link up"
+
+ # verify peer metric added correctly
+ set -e
+ run_cmd "$IP -6 addr flush dev dummy2"
+ run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::1 peer 2001:db8:104::2 metric 260"
+ set +e
+
+ check_route6 "2001:db8:104::1 dev dummy2 proto kernel metric 260"
+ log_test $? 0 "Set metric with peer route on local side"
+ check_route6 "2001:db8:104::2 dev dummy2 proto kernel metric 260"
+ log_test $? 0 "Set metric with peer route on peer side"
+
+ set -e
+ run_cmd "$IP -6 addr change dev dummy2 2001:db8:104::1 peer 2001:db8:104::3 metric 261"
+ set +e
+
+ check_route6 "2001:db8:104::1 dev dummy2 proto kernel metric 261"
+ log_test $? 0 "Modify metric and peer address on local side"
+ check_route6 "2001:db8:104::3 dev dummy2 proto kernel metric 261"
+ log_test $? 0 "Modify metric and peer address on peer side"
+
+ $IP li del dummy1
+ $IP li del dummy2
+ cleanup
+}
+
+ipv6_route_metrics_test()
+{
+ local rc
+
+ echo
+ echo "IPv6 routes with metrics"
+
+ route_setup
+
+ #
+ # single path with metrics
+ #
+ run_cmd "$IP -6 ro add 2001:db8:111::/64 via 2001:db8:101::2 mtu 1400"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ check_route6 "2001:db8:111::/64 via 2001:db8:101::2 dev veth1 metric 1024 mtu 1400"
+ rc=$?
+ fi
+ log_test $rc 0 "Single path route with mtu metric"
+
+
+ #
+ # multipath via separate routes with metrics
+ #
+ run_cmd "$IP -6 ro add 2001:db8:112::/64 via 2001:db8:101::2 mtu 1400"
+ run_cmd "$IP -6 ro append 2001:db8:112::/64 via 2001:db8:103::2"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ check_route6 "2001:db8:112::/64 metric 1024 mtu 1400 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
+ rc=$?
+ fi
+ log_test $rc 0 "Multipath route via 2 single routes with mtu metric on first"
+
+ # second route is coalesced to first to make a multipath route.
+ # MTU of the second path is hidden from display!
+ run_cmd "$IP -6 ro add 2001:db8:113::/64 via 2001:db8:101::2"
+ run_cmd "$IP -6 ro append 2001:db8:113::/64 via 2001:db8:103::2 mtu 1400"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ check_route6 "2001:db8:113::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
+ rc=$?
+ fi
+ log_test $rc 0 "Multipath route via 2 single routes with mtu metric on 2nd"
+
+ run_cmd "$IP -6 ro del 2001:db8:113::/64 via 2001:db8:101::2"
+ if [ $? -eq 0 ]; then
+ check_route6 "2001:db8:113::/64 via 2001:db8:103::2 dev veth3 metric 1024 mtu 1400"
+ log_test $? 0 " MTU of second leg"
+ fi
+
+ #
+ # multipath with metrics
+ #
+ run_cmd "$IP -6 ro add 2001:db8:115::/64 mtu 1400 nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ check_route6 "2001:db8:115::/64 metric 1024 mtu 1400 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
+ rc=$?
+ fi
+ log_test $rc 0 "Multipath route with mtu metric"
+
+ $IP -6 ro add 2001:db8:104::/64 via 2001:db8:101::2 mtu 1300
+ run_cmd "ip netns exec ns1 ${ping6} -w1 -c1 -s 1500 2001:db8:104::1"
+ log_test $? 0 "Using route with mtu metric"
+
+ run_cmd "$IP -6 ro add 2001:db8:114::/64 via 2001:db8:101::2 congctl lock foo"
+ log_test $? 2 "Invalid metric (fails metric_convert)"
+
+ route_cleanup
+}
+
+# add route for a prefix, flushing any existing routes first
+# expected to be the first step of a test
+add_route()
+{
+ local pfx="$1"
+ local nh="$2"
+ local out
+
+ if [ "$VERBOSE" = "1" ]; then
+ echo
+ echo " ##################################################"
+ echo
+ fi
+
+ run_cmd "$IP ro flush ${pfx}"
+ [ $? -ne 0 ] && exit 1
+
+ out=$($IP ro ls match ${pfx})
+ if [ -n "$out" ]; then
+ echo "Failed to flush routes for prefix used for tests."
+ exit 1
+ fi
+
+ run_cmd "$IP ro add ${pfx} ${nh}"
+ if [ $? -ne 0 ]; then
+ echo "Failed to add initial route for test."
+ exit 1
+ fi
+}
+
+# add initial route - used in replace route tests
+add_initial_route()
+{
+ add_route "172.16.104.0/24" "$1"
+}
+
+check_route()
+{
+ local pfx
+ local expected="$1"
+ local out
+
+ set -- $expected
+ pfx=$1
+ [ "${pfx}" = "unreachable" ] && pfx=$2
+
+ out=$($IP ro ls match ${pfx})
+ check_expected "${out}" "${expected}"
+}
+
+# assumption is that basic add of a single path route works
+# otherwise just adding an address on an interface is broken
+ipv4_rt_add()
+{
+ local rc
+
+ echo
+ echo "IPv4 route add / append tests"
+
+ # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
+ add_route "172.16.104.0/24" "via 172.16.101.2"
+ run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.2"
+ log_test $? 2 "Attempt to add duplicate route - gw"
+
+ # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
+ add_route "172.16.104.0/24" "via 172.16.101.2"
+ run_cmd "$IP ro add 172.16.104.0/24 dev veth3"
+ log_test $? 2 "Attempt to add duplicate route - dev only"
+
+ # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
+ add_route "172.16.104.0/24" "via 172.16.101.2"
+ run_cmd "$IP ro add unreachable 172.16.104.0/24"
+ log_test $? 2 "Attempt to add duplicate route - reject route"
+
+ # iproute2 prepend only sets NLM_F_CREATE
+ # - adds a new route; does NOT convert existing route to ECMP
+ add_route "172.16.104.0/24" "via 172.16.101.2"
+ run_cmd "$IP ro prepend 172.16.104.0/24 via 172.16.103.2"
+ check_route "172.16.104.0/24 via 172.16.103.2 dev veth3 172.16.104.0/24 via 172.16.101.2 dev veth1"
+ log_test $? 0 "Add new nexthop for existing prefix"
+
+ # route append with same prefix adds a new route
+ # - iproute2 sets NLM_F_CREATE | NLM_F_APPEND
+ add_route "172.16.104.0/24" "via 172.16.101.2"
+ run_cmd "$IP ro append 172.16.104.0/24 via 172.16.103.2"
+ check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 via 172.16.103.2 dev veth3"
+ log_test $? 0 "Append nexthop to existing route - gw"
+
+ add_route "172.16.104.0/24" "via 172.16.101.2"
+ run_cmd "$IP ro append 172.16.104.0/24 dev veth3"
+ check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 dev veth3 scope link"
+ log_test $? 0 "Append nexthop to existing route - dev only"
+
+ add_route "172.16.104.0/24" "via 172.16.101.2"
+ run_cmd "$IP ro append unreachable 172.16.104.0/24"
+ check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 unreachable 172.16.104.0/24"
+ log_test $? 0 "Append nexthop to existing route - reject route"
+
+ run_cmd "$IP ro flush 172.16.104.0/24"
+ run_cmd "$IP ro add unreachable 172.16.104.0/24"
+ run_cmd "$IP ro append 172.16.104.0/24 via 172.16.103.2"
+ check_route "unreachable 172.16.104.0/24 172.16.104.0/24 via 172.16.103.2 dev veth3"
+ log_test $? 0 "Append nexthop to existing reject route - gw"
+
+ run_cmd "$IP ro flush 172.16.104.0/24"
+ run_cmd "$IP ro add unreachable 172.16.104.0/24"
+ run_cmd "$IP ro append 172.16.104.0/24 dev veth3"
+ check_route "unreachable 172.16.104.0/24 172.16.104.0/24 dev veth3 scope link"
+ log_test $? 0 "Append nexthop to existing reject route - dev only"
+
+ # insert mpath directly
+ add_route "172.16.104.0/24" "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+ check_route "172.16.104.0/24 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
+ log_test $? 0 "add multipath route"
+
+ add_route "172.16.104.0/24" "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+ run_cmd "$IP ro add 172.16.104.0/24 nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+ log_test $? 2 "Attempt to add duplicate multipath route"
+
+ # insert of a second route without append but different metric
+ add_route "172.16.104.0/24" "via 172.16.101.2"
+ run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.2 metric 512"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.3 metric 256"
+ rc=$?
+ fi
+ log_test $rc 0 "Route add with different metrics"
+
+ run_cmd "$IP ro del 172.16.104.0/24 metric 512"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 via 172.16.103.3 dev veth3 metric 256"
+ rc=$?
+ fi
+ log_test $rc 0 "Route delete with metric"
+}
+
+ipv4_rt_replace_single()
+{
+ # single path with single path
+ #
+ add_initial_route "via 172.16.101.2"
+ run_cmd "$IP ro replace 172.16.104.0/24 via 172.16.103.2"
+ check_route "172.16.104.0/24 via 172.16.103.2 dev veth3"
+ log_test $? 0 "Single path with single path"
+
+ # single path with multipath
+ #
+ add_initial_route "nexthop via 172.16.101.2"
+ run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.2"
+ check_route "172.16.104.0/24 nexthop via 172.16.101.3 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
+ log_test $? 0 "Single path with multipath"
+
+ # single path with reject
+ #
+ add_initial_route "nexthop via 172.16.101.2"
+ run_cmd "$IP ro replace unreachable 172.16.104.0/24"
+ check_route "unreachable 172.16.104.0/24"
+ log_test $? 0 "Single path with reject route"
+
+ # single path with single path using MULTIPATH attribute
+ #
+ add_initial_route "via 172.16.101.2"
+ run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.103.2"
+ check_route "172.16.104.0/24 via 172.16.103.2 dev veth3"
+ log_test $? 0 "Single path with single path via multipath attribute"
+
+ # route replace fails - invalid nexthop
+ add_initial_route "via 172.16.101.2"
+ run_cmd "$IP ro replace 172.16.104.0/24 via 2001:db8:104::2"
+ if [ $? -eq 0 ]; then
+ # previous command is expected to fail so if it returns 0
+ # that means the test failed.
+ log_test 0 1 "Invalid nexthop"
+ else
+ check_route "172.16.104.0/24 via 172.16.101.2 dev veth1"
+ log_test $? 0 "Invalid nexthop"
+ fi
+
+ # replace non-existent route
+ # - note use of change versus replace since ip adds NLM_F_CREATE
+ # for replace
+ add_initial_route "via 172.16.101.2"
+ run_cmd "$IP ro change 172.16.105.0/24 via 172.16.101.2"
+ log_test $? 2 "Single path - replace of non-existent route"
+}
+
+ipv4_rt_replace_mpath()
+{
+ # multipath with multipath
+ add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+ run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.3"
+ check_route "172.16.104.0/24 nexthop via 172.16.101.3 dev veth1 weight 1 nexthop via 172.16.103.3 dev veth3 weight 1"
+ log_test $? 0 "Multipath with multipath"
+
+ # multipath with single
+ add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+ run_cmd "$IP ro replace 172.16.104.0/24 via 172.16.101.3"
+ check_route "172.16.104.0/24 via 172.16.101.3 dev veth1"
+ log_test $? 0 "Multipath with single path"
+
+ # multipath with single
+ add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+ run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3"
+ check_route "172.16.104.0/24 via 172.16.101.3 dev veth1"
+ log_test $? 0 "Multipath with single path via multipath attribute"
+
+ # multipath with reject
+ add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+ run_cmd "$IP ro replace unreachable 172.16.104.0/24"
+ check_route "unreachable 172.16.104.0/24"
+ log_test $? 0 "Multipath with reject route"
+
+ # route replace fails - invalid nexthop 1
+ add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+ run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.111.3 nexthop via 172.16.103.3"
+ check_route "172.16.104.0/24 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
+ log_test $? 0 "Multipath - invalid first nexthop"
+
+ # route replace fails - invalid nexthop 2
+ add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+ run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.113.3"
+ check_route "172.16.104.0/24 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
+ log_test $? 0 "Multipath - invalid second nexthop"
+
+ # multipath non-existent route
+ add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+ run_cmd "$IP ro change 172.16.105.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.3"
+ log_test $? 2 "Multipath - replace of non-existent route"
+}
+
+ipv4_rt_replace()
+{
+ echo
+ echo "IPv4 route replace tests"
+
+ ipv4_rt_replace_single
+ ipv4_rt_replace_mpath
+}
+
+# checks that cached input route on VRF port is deleted
+# when VRF is deleted
+ipv4_local_rt_cache()
+{
+ run_cmd "ip addr add 10.0.0.1/32 dev lo"
+ run_cmd "ip netns add test-ns"
+ run_cmd "ip link add veth-outside type veth peer name veth-inside"
+ run_cmd "ip link add vrf-100 type vrf table 1100"
+ run_cmd "ip link set veth-outside master vrf-100"
+ run_cmd "ip link set veth-inside netns test-ns"
+ run_cmd "ip link set veth-outside up"
+ run_cmd "ip link set vrf-100 up"
+ run_cmd "ip route add 10.1.1.1/32 dev veth-outside table 1100"
+ run_cmd "ip netns exec test-ns ip link set veth-inside up"
+ run_cmd "ip netns exec test-ns ip addr add 10.1.1.1/32 dev veth-inside"
+ run_cmd "ip netns exec test-ns ip route add 10.0.0.1/32 dev veth-inside"
+ run_cmd "ip netns exec test-ns ip route add default via 10.0.0.1"
+ run_cmd "ip netns exec test-ns ping 10.0.0.1 -c 1 -i 1"
+ run_cmd "ip link delete vrf-100"
+
+ # if we do not hang test is a success
+ log_test $? 0 "Cached route removed from VRF port device"
+}
+
+ipv4_route_test()
+{
+ route_setup
+
+ ipv4_rt_add
+ ipv4_rt_replace
+ ipv4_local_rt_cache
+
+ route_cleanup
+}
+
+ipv4_addr_metric_test()
+{
+ local rc
+
+ echo
+ echo "IPv4 prefix route tests"
+
+ ip_addr_metric_check || return 1
+
+ setup
+
+ set -e
+ $IP li add dummy1 type dummy
+ $IP li add dummy2 type dummy
+ $IP li set dummy1 up
+ $IP li set dummy2 up
+
+ # default entry is metric 256
+ run_cmd "$IP addr add dev dummy1 172.16.104.1/24"
+ run_cmd "$IP addr add dev dummy2 172.16.104.2/24"
+ set +e
+
+ check_route "172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2"
+ log_test $? 0 "Default metric"
+
+ set -e
+ run_cmd "$IP addr flush dev dummy1"
+ run_cmd "$IP addr add dev dummy1 172.16.104.1/24 metric 257"
+ set +e
+
+ check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 metric 257"
+ log_test $? 0 "User specified metric on first device"
+
+ set -e
+ run_cmd "$IP addr flush dev dummy2"
+ run_cmd "$IP addr add dev dummy2 172.16.104.2/24 metric 258"
+ set +e
+
+ check_route "172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 metric 257 172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 258"
+ log_test $? 0 "User specified metric on second device"
+
+ run_cmd "$IP addr del dev dummy1 172.16.104.1/24 metric 257"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 258"
+ rc=$?
+ fi
+ log_test $rc 0 "Delete of address on first device"
+
+ run_cmd "$IP addr change dev dummy2 172.16.104.2/24 metric 259"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 259"
+ rc=$?
+ fi
+ log_test $rc 0 "Modify metric of address"
+
+ # verify prefix route removed on down
+ run_cmd "$IP li set dev dummy2 down"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ out=$($IP ro ls match 172.16.104.0/24)
+ check_expected "${out}" ""
+ rc=$?
+ fi
+ log_test $rc 0 "Prefix route removed on link down"
+
+ # verify prefix route re-inserted with assigned metric
+ run_cmd "$IP li set dev dummy2 up"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 259"
+ rc=$?
+ fi
+ log_test $rc 0 "Prefix route with metric on link up"
+
+ # explicitly check for metric changes on edge scenarios
+ run_cmd "$IP addr flush dev dummy2"
+ run_cmd "$IP addr add dev dummy2 172.16.104.0/24 metric 259"
+ run_cmd "$IP addr change dev dummy2 172.16.104.0/24 metric 260"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.0 metric 260"
+ rc=$?
+ fi
+ log_test $rc 0 "Modify metric of .0/24 address"
+
+ run_cmd "$IP addr flush dev dummy2"
+ run_cmd "$IP addr add dev dummy2 172.16.104.1/32 peer 172.16.104.2 metric 260"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ check_route "172.16.104.2 dev dummy2 proto kernel scope link src 172.16.104.1 metric 260"
+ rc=$?
+ fi
+ log_test $rc 0 "Set metric of address with peer route"
+
+ run_cmd "$IP addr change dev dummy2 172.16.104.1/32 peer 172.16.104.3 metric 261"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ check_route "172.16.104.3 dev dummy2 proto kernel scope link src 172.16.104.1 metric 261"
+ rc=$?
+ fi
+ log_test $rc 0 "Modify metric and peer address for peer route"
+
+ $IP li del dummy1
+ $IP li del dummy2
+ cleanup
+}
+
+ipv4_route_metrics_test()
+{
+ local rc
+
+ echo
+ echo "IPv4 route add / append tests"
+
+ route_setup
+
+ run_cmd "$IP ro add 172.16.111.0/24 via 172.16.101.2 mtu 1400"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ check_route "172.16.111.0/24 via 172.16.101.2 dev veth1 mtu 1400"
+ rc=$?
+ fi
+ log_test $rc 0 "Single path route with mtu metric"
+
+
+ run_cmd "$IP ro add 172.16.112.0/24 mtu 1400 nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+ rc=$?
+ if [ $rc -eq 0 ]; then
+ check_route "172.16.112.0/24 mtu 1400 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
+ rc=$?
+ fi
+ log_test $rc 0 "Multipath route with mtu metric"
+
+ $IP ro add 172.16.104.0/24 via 172.16.101.2 mtu 1300
+ run_cmd "ip netns exec ns1 ping -w1 -c1 -s 1500 172.16.104.1"
+ log_test $? 0 "Using route with mtu metric"
+
+ run_cmd "$IP ro add 172.16.111.0/24 via 172.16.101.2 congctl lock foo"
+ log_test $? 2 "Invalid metric (fails metric_convert)"
+
+ route_cleanup
+}
+
+ipv4_del_addr_test()
+{
+ echo
+ echo "IPv4 delete address route tests"
+
+ setup
+
+ set -e
+ $IP li add dummy1 type dummy
+ $IP li set dummy1 up
+ $IP li add dummy2 type dummy
+ $IP li set dummy2 up
+ $IP li add red type vrf table 1111
+ $IP li set red up
+ $IP ro add vrf red unreachable default
+ $IP li set dummy2 vrf red
+
+ $IP addr add dev dummy1 172.16.104.1/24
+ $IP addr add dev dummy1 172.16.104.11/24
+ $IP addr add dev dummy1 172.16.104.12/24
+ $IP addr add dev dummy1 172.16.104.13/24
+ $IP addr add dev dummy2 172.16.104.1/24
+ $IP addr add dev dummy2 172.16.104.11/24
+ $IP addr add dev dummy2 172.16.104.12/24
+ $IP route add 172.16.105.0/24 via 172.16.104.2 src 172.16.104.11
+ $IP route add 172.16.106.0/24 dev lo src 172.16.104.12
+ $IP route add table 0 172.16.107.0/24 via 172.16.104.2 src 172.16.104.13
+ $IP route add vrf red 172.16.105.0/24 via 172.16.104.2 src 172.16.104.11
+ $IP route add vrf red 172.16.106.0/24 dev lo src 172.16.104.12
+ set +e
+
+ # removing address from device in vrf should only remove route from vrf table
+ echo " Regular FIB info"
+
+ $IP addr del dev dummy2 172.16.104.11/24
+ $IP ro ls vrf red | grep -q 172.16.105.0/24
+ log_test $? 1 "Route removed from VRF when source address deleted"
+
+ $IP ro ls | grep -q 172.16.105.0/24
+ log_test $? 0 "Route in default VRF not removed"
+
+ $IP addr add dev dummy2 172.16.104.11/24
+ $IP route add vrf red 172.16.105.0/24 via 172.16.104.2 src 172.16.104.11
+
+ $IP addr del dev dummy1 172.16.104.11/24
+ $IP ro ls | grep -q 172.16.105.0/24
+ log_test $? 1 "Route removed in default VRF when source address deleted"
+
+ $IP ro ls vrf red | grep -q 172.16.105.0/24
+ log_test $? 0 "Route in VRF is not removed by address delete"
+
+ # removing address from device in vrf should only remove route from vrf
+ # table even when the associated fib info only differs in table ID
+ echo " Identical FIB info with different table ID"
+
+ $IP addr del dev dummy2 172.16.104.12/24
+ $IP ro ls vrf red | grep -q 172.16.106.0/24
+ log_test $? 1 "Route removed from VRF when source address deleted"
+
+ $IP ro ls | grep -q 172.16.106.0/24
+ log_test $? 0 "Route in default VRF not removed"
+
+ $IP addr add dev dummy2 172.16.104.12/24
+ $IP route add vrf red 172.16.106.0/24 dev lo src 172.16.104.12
+
+ $IP addr del dev dummy1 172.16.104.12/24
+ $IP ro ls | grep -q 172.16.106.0/24
+ log_test $? 1 "Route removed in default VRF when source address deleted"
+
+ $IP ro ls vrf red | grep -q 172.16.106.0/24
+ log_test $? 0 "Route in VRF is not removed by address delete"
+
+ # removing address from device in default vrf should remove route from
+ # the default vrf even when route was inserted with a table ID of 0.
+ echo " Table ID 0"
+
+ $IP addr del dev dummy1 172.16.104.13/24
+ $IP ro ls | grep -q 172.16.107.0/24
+ log_test $? 1 "Route removed in default VRF when source address deleted"
+
+ $IP li del dummy1
+ $IP li del dummy2
+ cleanup
+}
+
+
+ipv4_route_v6_gw_test()
+{
+ local rc
+
+ echo
+ echo "IPv4 route with IPv6 gateway tests"
+
+ route_setup
+ sleep 2
+
+ #
+ # single path route
+ #
+ run_cmd "$IP ro add 172.16.104.0/24 via inet6 2001:db8:101::2"
+ rc=$?
+ log_test $rc 0 "Single path route with IPv6 gateway"
+ if [ $rc -eq 0 ]; then
+ check_route "172.16.104.0/24 via inet6 2001:db8:101::2 dev veth1"
+ fi
+
+ run_cmd "ip netns exec ns1 ping -w1 -c1 172.16.104.1"
+ log_test $rc 0 "Single path route with IPv6 gateway - ping"
+
+ run_cmd "$IP ro del 172.16.104.0/24 via inet6 2001:db8:101::2"
+ rc=$?
+ log_test $rc 0 "Single path route delete"
+ if [ $rc -eq 0 ]; then
+ check_route "172.16.112.0/24"
+ fi
+
+ #
+ # multipath - v6 then v4
+ #
+ run_cmd "$IP ro add 172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 nexthop via 172.16.103.2 dev veth3"
+ rc=$?
+ log_test $rc 0 "Multipath route add - v6 nexthop then v4"
+ if [ $rc -eq 0 ]; then
+ check_route "172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
+ fi
+
+ run_cmd "$IP ro del 172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 nexthop via inet6 2001:db8:101::2 dev veth1"
+ log_test $? 2 " Multipath route delete - nexthops in wrong order"
+
+ run_cmd "$IP ro del 172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 nexthop via 172.16.103.2 dev veth3"
+ log_test $? 0 " Multipath route delete exact match"
+
+ #
+ # multipath - v4 then v6
+ #
+ run_cmd "$IP ro add 172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 nexthop via inet6 2001:db8:101::2 dev veth1"
+ rc=$?
+ log_test $rc 0 "Multipath route add - v4 nexthop then v6"
+ if [ $rc -eq 0 ]; then
+ check_route "172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 weight 1 nexthop via inet6 2001:db8:101::2 dev veth1 weight 1"
+ fi
+
+ run_cmd "$IP ro del 172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 nexthop via 172.16.103.2 dev veth3"
+ log_test $? 2 " Multipath route delete - nexthops in wrong order"
+
+ run_cmd "$IP ro del 172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 nexthop via inet6 2001:db8:101::2 dev veth1"
+ log_test $? 0 " Multipath route delete exact match"
+
+ route_cleanup
+}
+
+################################################################################
+# usage
+
+usage()
+{
+ cat <<EOF
+usage: ${0##*/} OPTS
+
+ -t <test> Test(s) to run (default: all)
+ (options: $TESTS)
+ -p Pause on fail
+ -P Pause after each test before cleanup
+ -v verbose mode (show commands and output)
+EOF
+}
+
+################################################################################
+# main
+
+trap cleanup EXIT
+
+while getopts :t:pPhv o
+do
+ case $o in
+ t) TESTS=$OPTARG;;
+ p) PAUSE_ON_FAIL=yes;;
+ P) PAUSE=yes;;
+ v) VERBOSE=$(($VERBOSE + 1));;
+ h) usage; exit 0;;
+ *) usage; exit 1;;
+ esac
+done
+
+PEER_CMD="ip netns exec ${PEER_NS}"
+
+# make sure we don't pause twice
+[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
+
+if [ "$(id -u)" -ne 0 ];then
+ echo "SKIP: Need root privileges"
+ exit $ksft_skip;
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+
+ip route help 2>&1 | grep -q fibmatch
+if [ $? -ne 0 ]; then
+ echo "SKIP: iproute2 too old, missing fibmatch"
+ exit $ksft_skip
+fi
+
+# start clean
+cleanup &> /dev/null
+
+for t in $TESTS
+do
+ case $t in
+ fib_unreg_test|unregister) fib_unreg_test;;
+ fib_down_test|down) fib_down_test;;
+ fib_carrier_test|carrier) fib_carrier_test;;
+ fib_rp_filter_test|rp_filter) fib_rp_filter_test;;
+ fib_nexthop_test|nexthop) fib_nexthop_test;;
+ fib_suppress_test|suppress) fib_suppress_test;;
+ ipv6_route_test|ipv6_rt) ipv6_route_test;;
+ ipv4_route_test|ipv4_rt) ipv4_route_test;;
+ ipv6_addr_metric) ipv6_addr_metric_test;;
+ ipv4_addr_metric) ipv4_addr_metric_test;;
+ ipv4_del_addr) ipv4_del_addr_test;;
+ ipv6_route_metrics) ipv6_route_metrics_test;;
+ ipv4_route_metrics) ipv4_route_metrics_test;;
+ ipv4_route_v6_gw) ipv4_route_v6_gw_test;;
+
+ help) echo "Test names: $TESTS"; exit 0;;
+ esac
+done
+
+if [ "$TESTS" != "none" ]; then
+ printf "\nTests passed: %3d\n" ${nsuccess}
+ printf "Tests failed: %3d\n" ${nfail}
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/fin_ack_lat.c b/tools/testing/selftests/net/fin_ack_lat.c
new file mode 100644
index 000000000..70187494b
--- /dev/null
+++ b/tools/testing/selftests/net/fin_ack_lat.c
@@ -0,0 +1,151 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <unistd.h>
+
+static int child_pid;
+
+static unsigned long timediff(struct timeval s, struct timeval e)
+{
+ unsigned long s_us, e_us;
+
+ s_us = s.tv_sec * 1000000 + s.tv_usec;
+ e_us = e.tv_sec * 1000000 + e.tv_usec;
+ if (s_us > e_us)
+ return 0;
+ return e_us - s_us;
+}
+
+static void client(int port)
+{
+ int sock = 0;
+ struct sockaddr_in addr, laddr;
+ socklen_t len = sizeof(laddr);
+ struct linger sl;
+ int flag = 1;
+ int buffer;
+ struct timeval start, end;
+ unsigned long lat, sum_lat = 0, nr_lat = 0;
+
+ while (1) {
+ gettimeofday(&start, NULL);
+
+ sock = socket(AF_INET, SOCK_STREAM, 0);
+ if (sock < 0)
+ error(-1, errno, "socket creation");
+
+ sl.l_onoff = 1;
+ sl.l_linger = 0;
+ if (setsockopt(sock, SOL_SOCKET, SO_LINGER, &sl, sizeof(sl)))
+ error(-1, errno, "setsockopt(linger)");
+
+ if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY,
+ &flag, sizeof(flag)))
+ error(-1, errno, "setsockopt(nodelay)");
+
+ addr.sin_family = AF_INET;
+ addr.sin_port = htons(port);
+
+ if (inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr) <= 0)
+ error(-1, errno, "inet_pton");
+
+ if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0)
+ error(-1, errno, "connect");
+
+ send(sock, &buffer, sizeof(buffer), 0);
+ if (read(sock, &buffer, sizeof(buffer)) == -1)
+ error(-1, errno, "waiting read");
+
+ gettimeofday(&end, NULL);
+ lat = timediff(start, end);
+ sum_lat += lat;
+ nr_lat++;
+ if (lat < 100000)
+ goto close;
+
+ if (getsockname(sock, (struct sockaddr *)&laddr, &len) == -1)
+ error(-1, errno, "getsockname");
+ printf("port: %d, lat: %lu, avg: %lu, nr: %lu\n",
+ ntohs(laddr.sin_port), lat,
+ sum_lat / nr_lat, nr_lat);
+close:
+ fflush(stdout);
+ close(sock);
+ }
+}
+
+static void server(int sock, struct sockaddr_in address)
+{
+ int accepted;
+ int addrlen = sizeof(address);
+ int buffer;
+
+ while (1) {
+ accepted = accept(sock, (struct sockaddr *)&address,
+ (socklen_t *)&addrlen);
+ if (accepted < 0)
+ error(-1, errno, "accept");
+
+ if (read(accepted, &buffer, sizeof(buffer)) == -1)
+ error(-1, errno, "read");
+ close(accepted);
+ }
+}
+
+static void sig_handler(int signum)
+{
+ kill(SIGTERM, child_pid);
+ exit(0);
+}
+
+int main(int argc, char const *argv[])
+{
+ int sock;
+ int opt = 1;
+ struct sockaddr_in address;
+ struct sockaddr_in laddr;
+ socklen_t len = sizeof(laddr);
+
+ if (signal(SIGTERM, sig_handler) == SIG_ERR)
+ error(-1, errno, "signal");
+
+ sock = socket(AF_INET, SOCK_STREAM, 0);
+ if (sock < 0)
+ error(-1, errno, "socket");
+
+ if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT,
+ &opt, sizeof(opt)) == -1)
+ error(-1, errno, "setsockopt");
+
+ address.sin_family = AF_INET;
+ address.sin_addr.s_addr = INADDR_ANY;
+ /* dynamically allocate unused port */
+ address.sin_port = 0;
+
+ if (bind(sock, (struct sockaddr *)&address, sizeof(address)) < 0)
+ error(-1, errno, "bind");
+
+ if (listen(sock, 3) < 0)
+ error(-1, errno, "listen");
+
+ if (getsockname(sock, (struct sockaddr *)&laddr, &len) == -1)
+ error(-1, errno, "getsockname");
+
+ fprintf(stderr, "server port: %d\n", ntohs(laddr.sin_port));
+ child_pid = fork();
+ if (!child_pid)
+ client(ntohs(laddr.sin_port));
+ else
+ server(sock, laddr);
+
+ return 0;
+}
diff --git a/tools/testing/selftests/net/fin_ack_lat.sh b/tools/testing/selftests/net/fin_ack_lat.sh
new file mode 100755
index 000000000..a3ff6e0b2
--- /dev/null
+++ b/tools/testing/selftests/net/fin_ack_lat.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test latency spikes caused by FIN/ACK handling race.
+
+set +x
+set -e
+
+tmpfile=$(mktemp /tmp/fin_ack_latency.XXXX.log)
+
+cleanup() {
+ kill $(pidof fin_ack_lat)
+ rm -f $tmpfile
+}
+
+trap cleanup EXIT
+
+do_test() {
+ RUNTIME=$1
+
+ ./fin_ack_lat | tee $tmpfile &
+ PID=$!
+
+ sleep $RUNTIME
+ NR_SPIKES=$(wc -l $tmpfile | awk '{print $1}')
+ if [ $NR_SPIKES -gt 0 ]
+ then
+ echo "FAIL: $NR_SPIKES spikes detected"
+ return 1
+ fi
+ return 0
+}
+
+do_test "30"
+echo "test done"
diff --git a/tools/testing/selftests/net/forwarding/.gitignore b/tools/testing/selftests/net/forwarding/.gitignore
new file mode 100644
index 000000000..2dea317f1
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+forwarding.config
diff --git a/tools/testing/selftests/net/forwarding/Makefile b/tools/testing/selftests/net/forwarding/Makefile
new file mode 100644
index 000000000..881e680c2
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/Makefile
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: GPL-2.0+ OR MIT
+
+TEST_PROGS = bridge_igmp.sh \
+ bridge_port_isolation.sh \
+ bridge_sticky_fdb.sh \
+ bridge_vlan_aware.sh \
+ bridge_vlan_unaware.sh \
+ ethtool.sh \
+ gre_inner_v4_multipath.sh \
+ gre_inner_v6_multipath.sh \
+ gre_multipath.sh \
+ ip6_forward_instats_vrf.sh \
+ ip6gre_inner_v4_multipath.sh \
+ ip6gre_inner_v6_multipath.sh \
+ ipip_flat_gre_key.sh \
+ ipip_flat_gre_keys.sh \
+ ipip_flat_gre.sh \
+ ipip_hier_gre_key.sh \
+ ipip_hier_gre_keys.sh \
+ ipip_hier_gre.sh \
+ loopback.sh \
+ mirror_gre_bound.sh \
+ mirror_gre_bridge_1d.sh \
+ mirror_gre_bridge_1d_vlan.sh \
+ mirror_gre_bridge_1q_lag.sh \
+ mirror_gre_bridge_1q.sh \
+ mirror_gre_changes.sh \
+ mirror_gre_flower.sh \
+ mirror_gre_lag_lacp.sh \
+ mirror_gre_neigh.sh \
+ mirror_gre_nh.sh \
+ mirror_gre.sh \
+ mirror_gre_vlan_bridge_1q.sh \
+ mirror_gre_vlan.sh \
+ mirror_vlan.sh \
+ router_bridge.sh \
+ router_bridge_vlan.sh \
+ router_broadcast.sh \
+ router_mpath_nh.sh \
+ router_multicast.sh \
+ router_multipath.sh \
+ router.sh \
+ router_vid_1.sh \
+ sch_ets.sh \
+ sch_tbf_ets.sh \
+ sch_tbf_prio.sh \
+ sch_tbf_root.sh \
+ tc_actions.sh \
+ tc_chains.sh \
+ tc_flower_router.sh \
+ tc_flower.sh \
+ tc_shblocks.sh \
+ tc_vlan_modify.sh \
+ vxlan_asymmetric.sh \
+ vxlan_bridge_1d_port_8472.sh \
+ vxlan_bridge_1d.sh \
+ vxlan_bridge_1q_port_8472.sh \
+ vxlan_bridge_1q.sh \
+ vxlan_symmetric.sh
+
+TEST_PROGS_EXTENDED := devlink_lib.sh \
+ ethtool_lib.sh \
+ fib_offload_lib.sh \
+ forwarding.config.sample \
+ ipip_lib.sh \
+ lib.sh \
+ mirror_gre_lib.sh \
+ mirror_gre_topo_lib.sh \
+ mirror_lib.sh \
+ mirror_topo_lib.sh \
+ sch_ets_core.sh \
+ sch_ets_tests.sh \
+ sch_tbf_core.sh \
+ sch_tbf_etsprio.sh \
+ tc_common.sh
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/net/forwarding/README b/tools/testing/selftests/net/forwarding/README
new file mode 100644
index 000000000..b8a2af8fc
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/README
@@ -0,0 +1,58 @@
+Motivation
+==========
+
+One of the nice things about network namespaces is that they allow one
+to easily create and test complex environments.
+
+Unfortunately, these namespaces can not be used with actual switching
+ASICs, as their ports can not be migrated to other network namespaces
+(NETIF_F_NETNS_LOCAL) and most of them probably do not support the
+L1-separation provided by namespaces.
+
+However, a similar kind of flexibility can be achieved by using VRFs and
+by looping the switch ports together. For example:
+
+ br0
+ +
+ vrf-h1 | vrf-h2
+ + +---+----+ +
+ | | | |
+ 192.0.2.1/24 + + + + 192.0.2.2/24
+ swp1 swp2 swp3 swp4
+ + + + +
+ | | | |
+ +--------+ +--------+
+
+The VRFs act as lightweight namespaces representing hosts connected to
+the switch.
+
+This approach for testing switch ASICs has several advantages over the
+traditional method that requires multiple physical machines, to name a
+few:
+
+1. Only the device under test (DUT) is being tested without noise from
+other system.
+
+2. Ability to easily provision complex topologies. Testing bridging
+between 4-ports LAGs or 8-way ECMP requires many physical links that are
+not always available. With the VRF-based approach one merely needs to
+loopback more ports.
+
+These tests are written with switch ASICs in mind, but they can be run
+on any Linux box using veth pairs to emulate physical loopbacks.
+
+Guidelines for Writing Tests
+============================
+
+o Where possible, reuse an existing topology for different tests instead
+ of recreating the same topology.
+o Tests that use anything but the most trivial topologies should include
+ an ASCII art showing the topology.
+o Where possible, IPv6 and IPv4 addresses shall conform to RFC 3849 and
+ RFC 5737, respectively.
+o Where possible, tests shall be written so that they can be reused by
+ multiple topologies and added to lib.sh.
+o Checks shall be added to lib.sh for any external dependencies.
+o Code shall be checked using ShellCheck [1] prior to submission.
+
+1. https://www.shellcheck.net/
diff --git a/tools/testing/selftests/net/forwarding/bridge_igmp.sh b/tools/testing/selftests/net/forwarding/bridge_igmp.sh
new file mode 100755
index 000000000..88d2472ba
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_igmp.sh
@@ -0,0 +1,152 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="reportleave_test"
+NUM_NETIFS=4
+CHECK_TC="yes"
+TEST_GROUP="239.10.10.10"
+TEST_GROUP_MAC="01:00:5e:0a:0a:0a"
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+ simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+h2_destroy()
+{
+ simple_if_fini $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+switch_create()
+{
+ ip link add dev br0 type bridge mcast_snooping 1 mcast_querier 1
+
+ ip link set dev $swp1 master br0
+ ip link set dev $swp2 master br0
+
+ ip link set dev br0 up
+ ip link set dev $swp1 up
+ ip link set dev $swp2 up
+}
+
+switch_destroy()
+{
+ ip link set dev $swp2 down
+ ip link set dev $swp1 down
+
+ ip link del dev br0
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+
+ switch_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ switch_destroy
+
+ # Always cleanup the mcast group
+ ip address del dev $h2 $TEST_GROUP/32 2>&1 1>/dev/null
+
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+# return 0 if the packet wasn't seen on host2_if or 1 if it was
+mcast_packet_test()
+{
+ local mac=$1
+ local ip=$2
+ local host1_if=$3
+ local host2_if=$4
+ local seen=0
+
+ # Add an ACL on `host2_if` which will tell us whether the packet
+ # was received by it or not.
+ tc qdisc add dev $host2_if ingress
+ tc filter add dev $host2_if ingress protocol ip pref 1 handle 101 \
+ flower dst_mac $mac action drop
+
+ $MZ $host1_if -c 1 -p 64 -b $mac -B $ip -t udp "dp=4096,sp=2048" -q
+ sleep 1
+
+ tc -j -s filter show dev $host2_if ingress \
+ | jq -e ".[] | select(.options.handle == 101) \
+ | select(.options.actions[0].stats.packets == 1)" &> /dev/null
+ if [[ $? -eq 0 ]]; then
+ seen=1
+ fi
+
+ tc filter del dev $host2_if ingress protocol ip pref 1 handle 101 flower
+ tc qdisc del dev $host2_if ingress
+
+ return $seen
+}
+
+reportleave_test()
+{
+ RET=0
+ ip address add dev $h2 $TEST_GROUP/32 autojoin
+ check_err $? "Could not join $TEST_GROUP"
+
+ sleep 5
+ bridge mdb show dev br0 | grep $TEST_GROUP 1>/dev/null
+ check_err $? "Report didn't create mdb entry for $TEST_GROUP"
+
+ mcast_packet_test $TEST_GROUP_MAC $TEST_GROUP $h1 $h2
+ check_fail $? "Traffic to $TEST_GROUP wasn't forwarded"
+
+ log_test "IGMP report $TEST_GROUP"
+
+ RET=0
+ bridge mdb show dev br0 | grep $TEST_GROUP 1>/dev/null
+ check_err $? "mdb entry for $TEST_GROUP is missing"
+
+ ip address del dev $h2 $TEST_GROUP/32
+ check_err $? "Could not leave $TEST_GROUP"
+
+ sleep 5
+ bridge mdb show dev br0 | grep $TEST_GROUP 1>/dev/null
+ check_fail $? "Leave didn't delete mdb entry for $TEST_GROUP"
+
+ mcast_packet_test $TEST_GROUP_MAC $TEST_GROUP $h1 $h2
+ check_err $? "Traffic to $TEST_GROUP was forwarded without mdb entry"
+
+ log_test "IGMP leave $TEST_GROUP"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/bridge_port_isolation.sh b/tools/testing/selftests/net/forwarding/bridge_port_isolation.sh
new file mode 100755
index 000000000..a43b4645c
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_port_isolation.sh
@@ -0,0 +1,151 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="ping_ipv4 ping_ipv6 flooding"
+NUM_NETIFS=6
+CHECK_TC="yes"
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+ simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+h2_destroy()
+{
+ simple_if_fini $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+h3_create()
+{
+ simple_if_init $h3 192.0.2.3/24 2001:db8:1::3/64
+}
+
+h3_destroy()
+{
+ simple_if_fini $h3 192.0.2.3/24 2001:db8:1::3/64
+}
+
+switch_create()
+{
+ ip link add dev br0 type bridge
+
+ ip link set dev $swp1 master br0
+ ip link set dev $swp2 master br0
+ ip link set dev $swp3 master br0
+
+ ip link set dev $swp1 type bridge_slave isolated on
+ check_err $? "Can't set isolation on port $swp1"
+ ip link set dev $swp2 type bridge_slave isolated on
+ check_err $? "Can't set isolation on port $swp2"
+ ip link set dev $swp3 type bridge_slave isolated off
+ check_err $? "Can't disable isolation on port $swp3"
+
+ ip link set dev br0 up
+ ip link set dev $swp1 up
+ ip link set dev $swp2 up
+ ip link set dev $swp3 up
+}
+
+switch_destroy()
+{
+ ip link set dev $swp3 down
+ ip link set dev $swp2 down
+ ip link set dev $swp1 down
+
+ ip link del dev br0
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ swp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+ h3_create
+
+ switch_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ switch_destroy
+
+ h3_destroy
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+ping_ipv4()
+{
+ RET=0
+ ping_do $h1 192.0.2.2
+ check_fail $? "Ping worked when it should not have"
+
+ RET=0
+ ping_do $h3 192.0.2.2
+ check_err $? "Ping didn't work when it should have"
+
+ log_test "Isolated port ping"
+}
+
+ping_ipv6()
+{
+ RET=0
+ ping6_do $h1 2001:db8:1::2
+ check_fail $? "Ping6 worked when it should not have"
+
+ RET=0
+ ping6_do $h3 2001:db8:1::2
+ check_err $? "Ping6 didn't work when it should have"
+
+ log_test "Isolated port ping6"
+}
+
+flooding()
+{
+ local mac=de:ad:be:ef:13:37
+ local ip=192.0.2.100
+
+ RET=0
+ flood_test_do false $mac $ip $h1 $h2
+ check_err $? "Packet was flooded when it should not have been"
+
+ RET=0
+ flood_test_do true $mac $ip $h3 $h2
+ check_err $? "Packet was not flooded when it should have been"
+
+ log_test "Isolated port flooding"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/bridge_sticky_fdb.sh b/tools/testing/selftests/net/forwarding/bridge_sticky_fdb.sh
new file mode 100755
index 000000000..1f8ef0eff
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_sticky_fdb.sh
@@ -0,0 +1,69 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="sticky"
+NUM_NETIFS=4
+TEST_MAC=de:ad:be:ef:13:37
+source lib.sh
+
+switch_create()
+{
+ ip link add dev br0 type bridge
+
+ ip link set dev $swp1 master br0
+ ip link set dev $swp2 master br0
+
+ ip link set dev br0 up
+ ip link set dev $h1 up
+ ip link set dev $swp1 up
+ ip link set dev $h2 up
+ ip link set dev $swp2 up
+}
+
+switch_destroy()
+{
+ ip link set dev $swp2 down
+ ip link set dev $h2 down
+ ip link set dev $swp1 down
+ ip link set dev $h1 down
+
+ ip link del dev br0
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+ h2=${NETIFS[p3]}
+ swp2=${NETIFS[p4]}
+
+ switch_create
+}
+
+cleanup()
+{
+ pre_cleanup
+ switch_destroy
+}
+
+sticky()
+{
+ bridge fdb add $TEST_MAC dev $swp1 master static sticky
+ check_err $? "Could not add fdb entry"
+ bridge fdb del $TEST_MAC dev $swp1 vlan 1 master static sticky
+ $MZ $h2 -c 1 -a $TEST_MAC -t arp "request" -q
+ bridge -j fdb show br br0 brport $swp1\
+ | jq -e ".[] | select(.mac == \"$TEST_MAC\")" &> /dev/null
+ check_err $? "Did not find FDB record when should"
+
+ log_test "Sticky fdb entry"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/bridge_vlan_aware.sh b/tools/testing/selftests/net/forwarding/bridge_vlan_aware.sh
new file mode 100755
index 000000000..b90dff8d3
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_vlan_aware.sh
@@ -0,0 +1,151 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="ping_ipv4 ping_ipv6 learning flooding vlan_deletion extern_learn"
+NUM_NETIFS=4
+CHECK_TC="yes"
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+ simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+h2_destroy()
+{
+ simple_if_fini $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+switch_create()
+{
+ # 10 Seconds ageing time.
+ ip link add dev br0 type bridge vlan_filtering 1 ageing_time 1000 \
+ mcast_snooping 0
+
+ ip link set dev $swp1 master br0
+ ip link set dev $swp2 master br0
+
+ ip link set dev br0 up
+ ip link set dev $swp1 up
+ ip link set dev $swp2 up
+}
+
+switch_destroy()
+{
+ ip link set dev $swp2 down
+ ip link set dev $swp1 down
+
+ ip link del dev br0
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+
+ switch_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ switch_destroy
+
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+ping_ipv4()
+{
+ ping_test $h1 192.0.2.2
+}
+
+ping_ipv6()
+{
+ ping6_test $h1 2001:db8:1::2
+}
+
+learning()
+{
+ learning_test "br0" $swp1 $h1 $h2
+}
+
+flooding()
+{
+ flood_test $swp2 $h1 $h2
+}
+
+vlan_deletion()
+{
+ # Test that the deletion of a VLAN on a bridge port does not affect
+ # the PVID VLAN
+ log_info "Add and delete a VLAN on bridge port $swp1"
+
+ bridge vlan add vid 10 dev $swp1
+ bridge vlan del vid 10 dev $swp1
+
+ ping_ipv4
+ ping_ipv6
+}
+
+extern_learn()
+{
+ local mac=de:ad:be:ef:13:37
+ local ageing_time
+
+ # Test that externally learned FDB entries can roam, but not age out
+ RET=0
+
+ bridge fdb add de:ad:be:ef:13:37 dev $swp1 master extern_learn vlan 1
+
+ bridge fdb show brport $swp1 | grep -q de:ad:be:ef:13:37
+ check_err $? "Did not find FDB entry when should"
+
+ # Wait for 10 seconds after the ageing time to make sure the FDB entry
+ # was not aged out
+ ageing_time=$(bridge_ageing_time_get br0)
+ sleep $((ageing_time + 10))
+
+ bridge fdb show brport $swp1 | grep -q de:ad:be:ef:13:37
+ check_err $? "FDB entry was aged out when should not"
+
+ $MZ $h2 -c 1 -p 64 -a $mac -t ip -q
+
+ bridge fdb show brport $swp2 | grep -q de:ad:be:ef:13:37
+ check_err $? "FDB entry did not roam when should"
+
+ log_test "Externally learned FDB entry - ageing & roaming"
+
+ bridge fdb del de:ad:be:ef:13:37 dev $swp2 master vlan 1 &> /dev/null
+ bridge fdb del de:ad:be:ef:13:37 dev $swp1 master vlan 1 &> /dev/null
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/bridge_vlan_unaware.sh b/tools/testing/selftests/net/forwarding/bridge_vlan_unaware.sh
new file mode 100755
index 000000000..c15c6c85c
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_vlan_unaware.sh
@@ -0,0 +1,104 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="ping_ipv4 ping_ipv6 learning flooding"
+NUM_NETIFS=4
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+ simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+h2_destroy()
+{
+ simple_if_fini $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+switch_create()
+{
+ # 10 Seconds ageing time.
+ ip link add dev br0 type bridge ageing_time 1000 mcast_snooping 0
+
+ ip link set dev $swp1 master br0
+ ip link set dev $swp2 master br0
+
+ ip link set dev br0 up
+ ip link set dev $swp1 up
+ ip link set dev $swp2 up
+}
+
+switch_destroy()
+{
+ ip link set dev $swp2 down
+ ip link set dev $swp1 down
+
+ ip link del dev br0
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+
+ switch_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ switch_destroy
+
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+ping_ipv4()
+{
+ ping_test $h1 192.0.2.2
+}
+
+ping_ipv6()
+{
+ ping6_test $h1 2001:db8:1::2
+}
+
+learning()
+{
+ learning_test "br0" $swp1 $h1 $h2
+}
+
+flooding()
+{
+ flood_test $swp2 $h1 $h2
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/config b/tools/testing/selftests/net/forwarding/config
new file mode 100644
index 000000000..da96eff72
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/config
@@ -0,0 +1,14 @@
+CONFIG_BRIDGE=m
+CONFIG_VLAN_8021Q=m
+CONFIG_BRIDGE_VLAN_FILTERING=y
+CONFIG_NET_L3_MASTER_DEV=y
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_NET_VRF=m
+CONFIG_BPF_SYSCALL=y
+CONFIG_CGROUP_BPF=y
+CONFIG_NET_CLS_FLOWER=m
+CONFIG_NET_SCH_INGRESS=m
+CONFIG_NET_ACT_GACT=m
+CONFIG_VETH=m
+CONFIG_NAMESPACES=y
+CONFIG_NET_NS=y
diff --git a/tools/testing/selftests/net/forwarding/devlink_lib.sh b/tools/testing/selftests/net/forwarding/devlink_lib.sh
new file mode 100644
index 000000000..9c12c4fd3
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/devlink_lib.sh
@@ -0,0 +1,557 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+##############################################################################
+# Defines
+
+if [[ ! -v DEVLINK_DEV ]]; then
+ DEVLINK_DEV=$(devlink port show "${NETIFS[p1]:-$NETIF_NO_CABLE}" -j \
+ | jq -r '.port | keys[]' | cut -d/ -f-2)
+ if [ -z "$DEVLINK_DEV" ]; then
+ echo "SKIP: ${NETIFS[p1]} has no devlink device registered for it"
+ exit 1
+ fi
+ if [[ "$(echo $DEVLINK_DEV | grep -c pci)" -eq 0 ]]; then
+ echo "SKIP: devlink device's bus is not PCI"
+ exit 1
+ fi
+
+ DEVLINK_VIDDID=$(lspci -s $(echo $DEVLINK_DEV | cut -d"/" -f2) \
+ -n | cut -d" " -f3)
+fi
+
+##############################################################################
+# Sanity checks
+
+devlink help 2>&1 | grep resource &> /dev/null
+if [ $? -ne 0 ]; then
+ echo "SKIP: iproute2 too old, missing devlink resource support"
+ exit 1
+fi
+
+devlink help 2>&1 | grep trap &> /dev/null
+if [ $? -ne 0 ]; then
+ echo "SKIP: iproute2 too old, missing devlink trap support"
+ exit 1
+fi
+
+devlink dev help 2>&1 | grep info &> /dev/null
+if [ $? -ne 0 ]; then
+ echo "SKIP: iproute2 too old, missing devlink dev info support"
+ exit 1
+fi
+
+##############################################################################
+# Devlink helpers
+
+devlink_resource_names_to_path()
+{
+ local resource
+ local path=""
+
+ for resource in "${@}"; do
+ if [ "$path" == "" ]; then
+ path="$resource"
+ else
+ path="${path}/$resource"
+ fi
+ done
+
+ echo "$path"
+}
+
+devlink_resource_get()
+{
+ local name=$1
+ local resource_name=.[][\"$DEVLINK_DEV\"]
+
+ resource_name="$resource_name | .[] | select (.name == \"$name\")"
+
+ shift
+ for resource in "${@}"; do
+ resource_name="${resource_name} | .[\"resources\"][] | \
+ select (.name == \"$resource\")"
+ done
+
+ devlink -j resource show "$DEVLINK_DEV" | jq "$resource_name"
+}
+
+devlink_resource_size_get()
+{
+ local size=$(devlink_resource_get "$@" | jq '.["size_new"]')
+
+ if [ "$size" == "null" ]; then
+ devlink_resource_get "$@" | jq '.["size"]'
+ else
+ echo "$size"
+ fi
+}
+
+devlink_resource_size_set()
+{
+ local new_size=$1
+ local path
+
+ shift
+ path=$(devlink_resource_names_to_path "$@")
+ devlink resource set "$DEVLINK_DEV" path "$path" size "$new_size"
+ check_err $? "Failed setting path $path to size $size"
+}
+
+devlink_resource_occ_get()
+{
+ devlink_resource_get "$@" | jq '.["occ"]'
+}
+
+devlink_reload()
+{
+ local still_pending
+
+ devlink dev reload "$DEVLINK_DEV" &> /dev/null
+ check_err $? "Failed reload"
+
+ still_pending=$(devlink resource show "$DEVLINK_DEV" | \
+ grep -c "size_new")
+ check_err $still_pending "Failed reload - There are still unset sizes"
+}
+
+declare -A DEVLINK_ORIG
+
+# Changing pool type from static to dynamic causes reinterpretation of threshold
+# values. They therefore need to be saved before pool type is changed, then the
+# pool type can be changed, and then the new values need to be set up. Therefore
+# instead of saving the current state implicitly in the _set call, provide
+# functions for all three primitives: save, set, and restore.
+
+devlink_port_pool_threshold()
+{
+ local port=$1; shift
+ local pool=$1; shift
+
+ devlink sb port pool show $port pool $pool -j \
+ | jq '.port_pool."'"$port"'"[].threshold'
+}
+
+devlink_port_pool_th_save()
+{
+ local port=$1; shift
+ local pool=$1; shift
+ local key="port_pool($port,$pool).threshold"
+
+ DEVLINK_ORIG[$key]=$(devlink_port_pool_threshold $port $pool)
+}
+
+devlink_port_pool_th_set()
+{
+ local port=$1; shift
+ local pool=$1; shift
+ local th=$1; shift
+
+ devlink sb port pool set $port pool $pool th $th
+}
+
+devlink_port_pool_th_restore()
+{
+ local port=$1; shift
+ local pool=$1; shift
+ local key="port_pool($port,$pool).threshold"
+ local -a orig=(${DEVLINK_ORIG[$key]})
+
+ if [[ -z $orig ]]; then
+ echo "WARNING: Mismatched devlink_port_pool_th_restore"
+ else
+ devlink sb port pool set $port pool $pool th $orig
+ fi
+}
+
+devlink_pool_size_thtype()
+{
+ local pool=$1; shift
+
+ devlink sb pool show "$DEVLINK_DEV" pool $pool -j \
+ | jq -r '.pool[][] | (.size, .thtype)'
+}
+
+devlink_pool_size_thtype_save()
+{
+ local pool=$1; shift
+ local key="pool($pool).size_thtype"
+
+ DEVLINK_ORIG[$key]=$(devlink_pool_size_thtype $pool)
+}
+
+devlink_pool_size_thtype_set()
+{
+ local pool=$1; shift
+ local thtype=$1; shift
+ local size=$1; shift
+
+ devlink sb pool set "$DEVLINK_DEV" pool $pool size $size thtype $thtype
+}
+
+devlink_pool_size_thtype_restore()
+{
+ local pool=$1; shift
+ local key="pool($pool).size_thtype"
+ local -a orig=(${DEVLINK_ORIG[$key]})
+
+ if [[ -z ${orig[0]} ]]; then
+ echo "WARNING: Mismatched devlink_pool_size_thtype_restore"
+ else
+ devlink sb pool set "$DEVLINK_DEV" pool $pool \
+ size ${orig[0]} thtype ${orig[1]}
+ fi
+}
+
+devlink_tc_bind_pool_th()
+{
+ local port=$1; shift
+ local tc=$1; shift
+ local dir=$1; shift
+
+ devlink sb tc bind show $port tc $tc type $dir -j \
+ | jq -r '.tc_bind[][] | (.pool, .threshold)'
+}
+
+devlink_tc_bind_pool_th_save()
+{
+ local port=$1; shift
+ local tc=$1; shift
+ local dir=$1; shift
+ local key="tc_bind($port,$dir,$tc).pool_th"
+
+ DEVLINK_ORIG[$key]=$(devlink_tc_bind_pool_th $port $tc $dir)
+}
+
+devlink_tc_bind_pool_th_set()
+{
+ local port=$1; shift
+ local tc=$1; shift
+ local dir=$1; shift
+ local pool=$1; shift
+ local th=$1; shift
+
+ devlink sb tc bind set $port tc $tc type $dir pool $pool th $th
+}
+
+devlink_tc_bind_pool_th_restore()
+{
+ local port=$1; shift
+ local tc=$1; shift
+ local dir=$1; shift
+ local key="tc_bind($port,$dir,$tc).pool_th"
+ local -a orig=(${DEVLINK_ORIG[$key]})
+
+ if [[ -z ${orig[0]} ]]; then
+ echo "WARNING: Mismatched devlink_tc_bind_pool_th_restore"
+ else
+ devlink sb tc bind set $port tc $tc type $dir \
+ pool ${orig[0]} th ${orig[1]}
+ fi
+}
+
+devlink_traps_num_get()
+{
+ devlink -j trap | jq '.[]["'$DEVLINK_DEV'"] | length'
+}
+
+devlink_traps_get()
+{
+ devlink -j trap | jq -r '.[]["'$DEVLINK_DEV'"][].name'
+}
+
+devlink_trap_type_get()
+{
+ local trap_name=$1; shift
+
+ devlink -j trap show $DEVLINK_DEV trap $trap_name \
+ | jq -r '.[][][].type'
+}
+
+devlink_trap_action_set()
+{
+ local trap_name=$1; shift
+ local action=$1; shift
+
+ # Pipe output to /dev/null to avoid expected warnings.
+ devlink trap set $DEVLINK_DEV trap $trap_name \
+ action $action &> /dev/null
+}
+
+devlink_trap_action_get()
+{
+ local trap_name=$1; shift
+
+ devlink -j trap show $DEVLINK_DEV trap $trap_name \
+ | jq -r '.[][][].action'
+}
+
+devlink_trap_group_get()
+{
+ devlink -j trap show $DEVLINK_DEV trap $trap_name \
+ | jq -r '.[][][].group'
+}
+
+devlink_trap_metadata_test()
+{
+ local trap_name=$1; shift
+ local metadata=$1; shift
+
+ devlink -jv trap show $DEVLINK_DEV trap $trap_name \
+ | jq -e '.[][][].metadata | contains(["'$metadata'"])' \
+ &> /dev/null
+}
+
+devlink_trap_rx_packets_get()
+{
+ local trap_name=$1; shift
+
+ devlink -js trap show $DEVLINK_DEV trap $trap_name \
+ | jq '.[][][]["stats"]["rx"]["packets"]'
+}
+
+devlink_trap_rx_bytes_get()
+{
+ local trap_name=$1; shift
+
+ devlink -js trap show $DEVLINK_DEV trap $trap_name \
+ | jq '.[][][]["stats"]["rx"]["bytes"]'
+}
+
+devlink_trap_stats_idle_test()
+{
+ local trap_name=$1; shift
+ local t0_packets t0_bytes
+ local t1_packets t1_bytes
+
+ t0_packets=$(devlink_trap_rx_packets_get $trap_name)
+ t0_bytes=$(devlink_trap_rx_bytes_get $trap_name)
+
+ sleep 1
+
+ t1_packets=$(devlink_trap_rx_packets_get $trap_name)
+ t1_bytes=$(devlink_trap_rx_bytes_get $trap_name)
+
+ if [[ $t0_packets -eq $t1_packets && $t0_bytes -eq $t1_bytes ]]; then
+ return 0
+ else
+ return 1
+ fi
+}
+
+devlink_traps_enable_all()
+{
+ local trap_name
+
+ for trap_name in $(devlink_traps_get); do
+ devlink_trap_action_set $trap_name "trap"
+ done
+}
+
+devlink_traps_disable_all()
+{
+ for trap_name in $(devlink_traps_get); do
+ devlink_trap_action_set $trap_name "drop"
+ done
+}
+
+devlink_trap_groups_get()
+{
+ devlink -j trap group | jq -r '.[]["'$DEVLINK_DEV'"][].name'
+}
+
+devlink_trap_group_action_set()
+{
+ local group_name=$1; shift
+ local action=$1; shift
+
+ # Pipe output to /dev/null to avoid expected warnings.
+ devlink trap group set $DEVLINK_DEV group $group_name action $action \
+ &> /dev/null
+}
+
+devlink_trap_group_rx_packets_get()
+{
+ local group_name=$1; shift
+
+ devlink -js trap group show $DEVLINK_DEV group $group_name \
+ | jq '.[][][]["stats"]["rx"]["packets"]'
+}
+
+devlink_trap_group_rx_bytes_get()
+{
+ local group_name=$1; shift
+
+ devlink -js trap group show $DEVLINK_DEV group $group_name \
+ | jq '.[][][]["stats"]["rx"]["bytes"]'
+}
+
+devlink_trap_group_stats_idle_test()
+{
+ local group_name=$1; shift
+ local t0_packets t0_bytes
+ local t1_packets t1_bytes
+
+ t0_packets=$(devlink_trap_group_rx_packets_get $group_name)
+ t0_bytes=$(devlink_trap_group_rx_bytes_get $group_name)
+
+ sleep 1
+
+ t1_packets=$(devlink_trap_group_rx_packets_get $group_name)
+ t1_bytes=$(devlink_trap_group_rx_bytes_get $group_name)
+
+ if [[ $t0_packets -eq $t1_packets && $t0_bytes -eq $t1_bytes ]]; then
+ return 0
+ else
+ return 1
+ fi
+}
+
+devlink_trap_exception_test()
+{
+ local trap_name=$1; shift
+ local group_name
+
+ group_name=$(devlink_trap_group_get $trap_name)
+
+ devlink_trap_stats_idle_test $trap_name
+ check_fail $? "Trap stats idle when packets should have been trapped"
+
+ devlink_trap_group_stats_idle_test $group_name
+ check_fail $? "Trap group idle when packets should have been trapped"
+}
+
+devlink_trap_drop_test()
+{
+ local trap_name=$1; shift
+ local dev=$1; shift
+ local handle=$1; shift
+ local group_name
+
+ group_name=$(devlink_trap_group_get $trap_name)
+
+ # This is the common part of all the tests. It checks that stats are
+ # initially idle, then non-idle after changing the trap action and
+ # finally idle again. It also makes sure the packets are dropped and
+ # never forwarded.
+ devlink_trap_stats_idle_test $trap_name
+ check_err $? "Trap stats not idle with initial drop action"
+ devlink_trap_group_stats_idle_test $group_name
+ check_err $? "Trap group stats not idle with initial drop action"
+
+ devlink_trap_action_set $trap_name "trap"
+ devlink_trap_stats_idle_test $trap_name
+ check_fail $? "Trap stats idle after setting action to trap"
+ devlink_trap_group_stats_idle_test $group_name
+ check_fail $? "Trap group stats idle after setting action to trap"
+
+ devlink_trap_action_set $trap_name "drop"
+
+ devlink_trap_stats_idle_test $trap_name
+ check_err $? "Trap stats not idle after setting action to drop"
+ devlink_trap_group_stats_idle_test $group_name
+ check_err $? "Trap group stats not idle after setting action to drop"
+
+ tc_check_packets "dev $dev egress" $handle 0
+ check_err $? "Packets were not dropped"
+}
+
+devlink_trap_drop_cleanup()
+{
+ local mz_pid=$1; shift
+ local dev=$1; shift
+ local proto=$1; shift
+ local pref=$1; shift
+ local handle=$1; shift
+
+ kill $mz_pid && wait $mz_pid &> /dev/null
+ tc filter del dev $dev egress protocol $proto pref $pref handle $handle flower
+}
+
+devlink_trap_stats_test()
+{
+ local test_name=$1; shift
+ local trap_name=$1; shift
+ local send_one="$@"
+ local t0_packets
+ local t1_packets
+
+ RET=0
+
+ t0_packets=$(devlink_trap_rx_packets_get $trap_name)
+
+ $send_one && sleep 1
+
+ t1_packets=$(devlink_trap_rx_packets_get $trap_name)
+
+ if [[ $t1_packets -eq $t0_packets ]]; then
+ check_err 1 "Trap stats did not increase"
+ fi
+
+ log_test "$test_name"
+}
+
+devlink_trap_policers_num_get()
+{
+ devlink -j -p trap policer show | jq '.[]["'$DEVLINK_DEV'"] | length'
+}
+
+devlink_trap_policer_rate_get()
+{
+ local policer_id=$1; shift
+
+ devlink -j -p trap policer show $DEVLINK_DEV policer $policer_id \
+ | jq '.[][][]["rate"]'
+}
+
+devlink_trap_policer_burst_get()
+{
+ local policer_id=$1; shift
+
+ devlink -j -p trap policer show $DEVLINK_DEV policer $policer_id \
+ | jq '.[][][]["burst"]'
+}
+
+devlink_trap_policer_rx_dropped_get()
+{
+ local policer_id=$1; shift
+
+ devlink -j -p -s trap policer show $DEVLINK_DEV policer $policer_id \
+ | jq '.[][][]["stats"]["rx"]["dropped"]'
+}
+
+devlink_trap_group_policer_get()
+{
+ local group_name=$1; shift
+
+ devlink -j -p trap group show $DEVLINK_DEV group $group_name \
+ | jq '.[][][]["policer"]'
+}
+
+devlink_trap_policer_ids_get()
+{
+ devlink -j -p trap policer show \
+ | jq '.[]["'$DEVLINK_DEV'"][]["policer"]'
+}
+
+devlink_port_by_netdev()
+{
+ local if_name=$1
+
+ devlink -j port show $if_name | jq -e '.[] | keys' | jq -r '.[]'
+}
+
+devlink_cpu_port_get()
+{
+ local cpu_dl_port_num=$(devlink port list | grep "$DEVLINK_DEV" |
+ grep cpu | cut -d/ -f3 | cut -d: -f1 |
+ sed -n '1p')
+
+ echo "$DEVLINK_DEV/$cpu_dl_port_num"
+}
+
+devlink_cell_size_get()
+{
+ devlink sb pool show "$DEVLINK_DEV" pool 0 -j \
+ | jq '.pool[][].cell_size'
+}
diff --git a/tools/testing/selftests/net/forwarding/ethtool.sh b/tools/testing/selftests/net/forwarding/ethtool.sh
new file mode 100755
index 000000000..aa2eafb7b
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ethtool.sh
@@ -0,0 +1,301 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+ same_speeds_autoneg_off
+ different_speeds_autoneg_off
+ combination_of_neg_on_and_off
+ advertise_subset_of_speeds
+ check_highest_speed_is_chosen
+ different_speeds_autoneg_on
+"
+NUM_NETIFS=2
+source lib.sh
+source ethtool_lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/24
+}
+
+h1_destroy()
+{
+ simple_if_fini $h1 192.0.2.1/24
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.2/24
+}
+
+h2_destroy()
+{
+ simple_if_fini $h2 192.0.2.2/24
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ h2=${NETIFS[p2]}
+
+ h1_create
+ h2_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ h2_destroy
+ h1_destroy
+}
+
+same_speeds_autoneg_off()
+{
+ # Check that when each of the reported speeds is forced, the links come
+ # up and are operational.
+ local -a speeds_arr=($(common_speeds_get $h1 $h2 0 0))
+
+ for speed in "${speeds_arr[@]}"; do
+ RET=0
+ ethtool_set $h1 speed $speed autoneg off
+ ethtool_set $h2 speed $speed autoneg off
+
+ setup_wait_dev_with_timeout $h1
+ setup_wait_dev_with_timeout $h2
+ ping_do $h1 192.0.2.2
+ check_err $? "speed $speed autoneg off"
+ log_test "force of same speed autoneg off"
+ log_info "speed = $speed"
+ done
+
+ ethtool -s $h2 autoneg on
+ ethtool -s $h1 autoneg on
+}
+
+different_speeds_autoneg_off()
+{
+ # Test that when we force different speeds, links are not up and ping
+ # fails.
+ RET=0
+
+ local -a speeds_arr=($(different_speeds_get $h1 $h2 0 0))
+ local speed1=${speeds_arr[0]}
+ local speed2=${speeds_arr[1]}
+
+ ethtool_set $h1 speed $speed1 autoneg off
+ ethtool_set $h2 speed $speed2 autoneg off
+
+ setup_wait_dev_with_timeout $h1
+ setup_wait_dev_with_timeout $h2
+ ping_do $h1 192.0.2.2
+ check_fail $? "ping with different speeds"
+
+ log_test "force of different speeds autoneg off"
+
+ ethtool -s $h2 autoneg on
+ ethtool -s $h1 autoneg on
+}
+
+combination_of_neg_on_and_off()
+{
+ # Test that when one device is forced to a speed supported by both
+ # endpoints and the other device is configured to autoneg on, the links
+ # are up and ping passes.
+ local -a speeds_arr=($(common_speeds_get $h1 $h2 0 1))
+
+ for speed in "${speeds_arr[@]}"; do
+ RET=0
+ ethtool_set $h1 speed $speed autoneg off
+
+ setup_wait_dev_with_timeout $h1
+ setup_wait_dev_with_timeout $h2
+ ping_do $h1 192.0.2.2
+ check_err $? "h1-speed=$speed autoneg off, h2 autoneg on"
+ log_test "one side with autoneg off and another with autoneg on"
+ log_info "force speed = $speed"
+ done
+
+ ethtool -s $h1 autoneg on
+}
+
+hex_speed_value_get()
+{
+ local speed=$1; shift
+
+ local shift_size=${speed_values[$speed]}
+ speed=$((0x1 << $"shift_size"))
+ printf "%#x" "$speed"
+}
+
+subset_of_common_speeds_get()
+{
+ local dev1=$1; shift
+ local dev2=$1; shift
+ local adver=$1; shift
+
+ local -a speeds_arr=($(common_speeds_get $dev1 $dev2 0 $adver))
+ local speed_to_advertise=0
+ local speed_to_remove=${speeds_arr[0]}
+ speed_to_remove+='base'
+
+ local -a speeds_mode_arr=($(common_speeds_get $dev1 $dev2 1 $adver))
+
+ for speed in ${speeds_mode_arr[@]}; do
+ if [[ $speed != $speed_to_remove* ]]; then
+ speed=$(hex_speed_value_get $speed)
+ speed_to_advertise=$(($speed_to_advertise | \
+ $speed))
+ fi
+
+ done
+
+ # Convert to hex.
+ printf "%#x" "$speed_to_advertise"
+}
+
+speed_to_advertise_get()
+{
+ # The function returns the hex number that is composed by OR-ing all
+ # the modes corresponding to the provided speed.
+ local speed_without_mode=$1; shift
+ local supported_speeds=("$@"); shift
+ local speed_to_advertise=0
+
+ speed_without_mode+='base'
+
+ for speed in ${supported_speeds[@]}; do
+ if [[ $speed == $speed_without_mode* ]]; then
+ speed=$(hex_speed_value_get $speed)
+ speed_to_advertise=$(($speed_to_advertise | \
+ $speed))
+ fi
+
+ done
+
+ # Convert to hex.
+ printf "%#x" "$speed_to_advertise"
+}
+
+advertise_subset_of_speeds()
+{
+ # Test that when one device advertises a subset of speeds and another
+ # advertises a specific speed (but all modes of this speed), the links
+ # are up and ping passes.
+ RET=0
+
+ local speed_1_to_advertise=$(subset_of_common_speeds_get $h1 $h2 1)
+ ethtool_set $h1 advertise $speed_1_to_advertise
+
+ if [ $RET != 0 ]; then
+ log_test "advertise subset of speeds"
+ return
+ fi
+
+ local -a speeds_arr_without_mode=($(common_speeds_get $h1 $h2 0 1))
+ # Check only speeds that h1 advertised. Remove the first speed.
+ unset speeds_arr_without_mode[0]
+ local -a speeds_arr_with_mode=($(common_speeds_get $h1 $h2 1 1))
+
+ for speed_value in ${speeds_arr_without_mode[@]}; do
+ RET=0
+ local speed_2_to_advertise=$(speed_to_advertise_get $speed_value \
+ "${speeds_arr_with_mode[@]}")
+ ethtool_set $h2 advertise $speed_2_to_advertise
+
+ setup_wait_dev_with_timeout $h1
+ setup_wait_dev_with_timeout $h2
+ ping_do $h1 192.0.2.2
+ check_err $? "h1=$speed_1_to_advertise, h2=$speed_2_to_advertise ($speed_value)"
+
+ log_test "advertise subset of speeds"
+ log_info "h1=$speed_1_to_advertise, h2=$speed_2_to_advertise"
+ done
+
+ ethtool -s $h2 autoneg on
+ ethtool -s $h1 autoneg on
+}
+
+check_highest_speed_is_chosen()
+{
+ # Test that when one device advertises a subset of speeds, the other
+ # chooses the highest speed. This test checks configuration without
+ # traffic.
+ RET=0
+
+ local max_speed
+ local chosen_speed
+ local speed_to_advertise=$(subset_of_common_speeds_get $h1 $h2 1)
+
+ ethtool_set $h1 advertise $speed_to_advertise
+
+ if [ $RET != 0 ]; then
+ log_test "check highest speed"
+ return
+ fi
+
+ local -a speeds_arr=($(common_speeds_get $h1 $h2 0 1))
+
+ max_speed=${speeds_arr[0]}
+ for current in ${speeds_arr[@]}; do
+ if [[ $current -gt $max_speed ]]; then
+ max_speed=$current
+ fi
+ done
+
+ setup_wait_dev_with_timeout $h1
+ setup_wait_dev_with_timeout $h2
+ chosen_speed=$(ethtool $h1 | grep 'Speed:')
+ chosen_speed=${chosen_speed%"Mb/s"*}
+ chosen_speed=${chosen_speed#*"Speed: "}
+ ((chosen_speed == max_speed))
+ check_err $? "h1 advertise $speed_to_advertise, h2 sync to speed $chosen_speed"
+
+ log_test "check highest speed"
+
+ ethtool -s $h2 autoneg on
+ ethtool -s $h1 autoneg on
+}
+
+different_speeds_autoneg_on()
+{
+ # Test that when we configure links to advertise different speeds,
+ # links are not up and ping fails.
+ RET=0
+
+ local -a speeds=($(different_speeds_get $h1 $h2 1 1))
+ local speed1=${speeds[0]}
+ local speed2=${speeds[1]}
+
+ speed1=$(hex_speed_value_get $speed1)
+ speed2=$(hex_speed_value_get $speed2)
+
+ ethtool_set $h1 advertise $speed1
+ ethtool_set $h2 advertise $speed2
+
+ if (($RET)); then
+ setup_wait_dev_with_timeout $h1
+ setup_wait_dev_with_timeout $h2
+ ping_do $h1 192.0.2.2
+ check_fail $? "ping with different speeds autoneg on"
+ fi
+
+ log_test "advertise different speeds autoneg on"
+
+ ethtool -s $h2 autoneg on
+ ethtool -s $h1 autoneg on
+}
+
+skip_on_veth
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+declare -gA speed_values
+eval "speed_values=($(speeds_arr_get))"
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ethtool_extended_state.sh b/tools/testing/selftests/net/forwarding/ethtool_extended_state.sh
new file mode 100755
index 000000000..baf831da5
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ethtool_extended_state.sh
@@ -0,0 +1,104 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+ autoneg
+ autoneg_force_mode
+ no_cable
+"
+
+NUM_NETIFS=2
+source lib.sh
+source ethtool_lib.sh
+
+setup_prepare()
+{
+ swp1=${NETIFS[p1]}
+ swp2=${NETIFS[p2]}
+ swp3=$NETIF_NO_CABLE
+}
+
+ethtool_extended_state_check()
+{
+ local dev=$1; shift
+ local expected_ext_state=$1; shift
+ local expected_ext_substate=${1:-""}; shift
+
+ local ext_state=$(ethtool $dev | grep "Link detected" \
+ | cut -d "(" -f2 | cut -d ")" -f1)
+ local ext_substate=$(echo $ext_state | cut -sd "," -f2 \
+ | sed -e 's/^[[:space:]]*//')
+ ext_state=$(echo $ext_state | cut -d "," -f1)
+
+ [[ $ext_state == $expected_ext_state ]]
+ check_err $? "Expected \"$expected_ext_state\", got \"$ext_state\""
+
+ [[ $ext_substate == $expected_ext_substate ]]
+ check_err $? "Expected \"$expected_ext_substate\", got \"$ext_substate\""
+}
+
+autoneg()
+{
+ RET=0
+
+ ip link set dev $swp1 up
+
+ sleep 4
+ ethtool_extended_state_check $swp1 "Autoneg" "No partner detected"
+
+ log_test "Autoneg, No partner detected"
+
+ ip link set dev $swp1 down
+}
+
+autoneg_force_mode()
+{
+ RET=0
+
+ ip link set dev $swp1 up
+ ip link set dev $swp2 up
+
+ local -a speeds_arr=($(different_speeds_get $swp1 $swp2 0 0))
+ local speed1=${speeds_arr[0]}
+ local speed2=${speeds_arr[1]}
+
+ ethtool_set $swp1 speed $speed1 autoneg off
+ ethtool_set $swp2 speed $speed2 autoneg off
+
+ sleep 4
+ ethtool_extended_state_check $swp1 "Autoneg" \
+ "No partner detected during force mode"
+
+ ethtool_extended_state_check $swp2 "Autoneg" \
+ "No partner detected during force mode"
+
+ log_test "Autoneg, No partner detected during force mode"
+
+ ethtool -s $swp2 autoneg on
+ ethtool -s $swp1 autoneg on
+
+ ip link set dev $swp2 down
+ ip link set dev $swp1 down
+}
+
+no_cable()
+{
+ RET=0
+
+ ip link set dev $swp3 up
+
+ sleep 1
+ ethtool_extended_state_check $swp3 "No cable"
+
+ log_test "No cable"
+
+ ip link set dev $swp3 down
+}
+
+skip_on_veth
+
+setup_prepare
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ethtool_lib.sh b/tools/testing/selftests/net/forwarding/ethtool_lib.sh
new file mode 100644
index 000000000..9188e624d
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ethtool_lib.sh
@@ -0,0 +1,86 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+speeds_arr_get()
+{
+ cmd='/ETHTOOL_LINK_MODE_[^[:space:]]*_BIT[[:space:]]+=[[:space:]]+/ \
+ {sub(/,$/, "") \
+ sub(/ETHTOOL_LINK_MODE_/,"") \
+ sub(/_BIT/,"") \
+ sub(/_Full/,"/Full") \
+ sub(/_Half/,"/Half");\
+ print "["$1"]="$3}'
+
+ awk "${cmd}" /usr/include/linux/ethtool.h
+}
+
+ethtool_set()
+{
+ local cmd="$@"
+ local out=$(ethtool -s $cmd 2>&1 | wc -l)
+
+ check_err $out "error in configuration. $cmd"
+}
+
+dev_speeds_get()
+{
+ local dev=$1; shift
+ local with_mode=$1; shift
+ local adver=$1; shift
+ local speeds_str
+
+ if (($adver)); then
+ mode="Advertised link modes"
+ else
+ mode="Supported link modes"
+ fi
+
+ speeds_str=$(ethtool "$dev" | \
+ # Snip everything before the link modes section.
+ sed -n '/'"$mode"':/,$p' | \
+ # Quit processing the rest at the start of the next section.
+ # When checking, skip the header of this section (hence the 2,).
+ sed -n '2,${/^[\t][^ \t]/q};p' | \
+ # Drop the section header of the current section.
+ cut -d':' -f2)
+
+ local -a speeds_arr=($speeds_str)
+ if [[ $with_mode -eq 0 ]]; then
+ for ((i=0; i<${#speeds_arr[@]}; i++)); do
+ speeds_arr[$i]=${speeds_arr[$i]%base*}
+ done
+ fi
+ echo ${speeds_arr[@]}
+}
+
+common_speeds_get()
+{
+ dev1=$1; shift
+ dev2=$1; shift
+ with_mode=$1; shift
+ adver=$1; shift
+
+ local -a dev1_speeds=($(dev_speeds_get $dev1 $with_mode $adver))
+ local -a dev2_speeds=($(dev_speeds_get $dev2 $with_mode $adver))
+
+ comm -12 \
+ <(printf '%s\n' "${dev1_speeds[@]}" | sort -u) \
+ <(printf '%s\n' "${dev2_speeds[@]}" | sort -u)
+}
+
+different_speeds_get()
+{
+ local dev1=$1; shift
+ local dev2=$1; shift
+ local with_mode=$1; shift
+ local adver=$1; shift
+
+ local -a speeds_arr
+
+ speeds_arr=($(common_speeds_get $dev1 $dev2 $with_mode $adver))
+ if [[ ${#speeds_arr[@]} < 2 ]]; then
+ check_err 1 "cannot check different speeds. There are not enough speeds"
+ fi
+
+ echo ${speeds_arr[0]} ${speeds_arr[1]}
+}
diff --git a/tools/testing/selftests/net/forwarding/fib_offload_lib.sh b/tools/testing/selftests/net/forwarding/fib_offload_lib.sh
new file mode 100644
index 000000000..66496659b
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/fib_offload_lib.sh
@@ -0,0 +1,873 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Various helpers and tests to verify FIB offload.
+
+__fib_trap_check()
+{
+ local ns=$1; shift
+ local family=$1; shift
+ local route=$1; shift
+ local should_fail=$1; shift
+ local ret
+
+ ip -n $ns -j -p -$family route show $route \
+ | jq -e '.[]["flags"] | contains(["trap"])' &> /dev/null
+ ret=$?
+ if [[ $should_fail == "true" ]]; then
+ if [[ $ret -ne 0 ]]; then
+ return 0
+ else
+ return 1
+ fi
+ fi
+
+ return $ret
+}
+
+fib_trap_check()
+{
+ local ns=$1; shift
+ local family=$1; shift
+ local route=$1; shift
+ local should_fail=$1; shift
+
+ busywait 5000 __fib_trap_check $ns $family "$route" $should_fail
+}
+
+fib4_trap_check()
+{
+ local ns=$1; shift
+ local route=$1; shift
+ local should_fail=$1; shift
+
+ fib_trap_check $ns 4 "$route" $should_fail
+}
+
+fib6_trap_check()
+{
+ local ns=$1; shift
+ local route=$1; shift
+ local should_fail=$1; shift
+
+ fib_trap_check $ns 6 "$route" $should_fail
+}
+
+fib_ipv4_identical_routes_test()
+{
+ local ns=$1; shift
+ local i
+
+ RET=0
+
+ for i in $(seq 1 3); do
+ ip -n $ns link add name dummy$i type dummy
+ ip -n $ns link set dev dummy$i up
+ done
+
+ ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 0 metric 1024
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0 metric 1024" false
+ check_err $? "Route not in hardware when should"
+
+ ip -n $ns route append 192.0.2.0/24 dev dummy2 tos 0 metric 1024
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy2 tos 0 metric 1024" true
+ check_err $? "Appended route in hardware when should not"
+
+ ip -n $ns route prepend 192.0.2.0/24 dev dummy3 tos 0 metric 1024
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy3 tos 0 metric 1024" false
+ check_err $? "Prepended route not in hardware when should"
+
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0 metric 1024" true
+ check_err $? "Route was not replaced in hardware by prepended one"
+
+ log_test "IPv4 identical routes"
+
+ for i in $(seq 1 3); do
+ ip -n $ns link del dev dummy$i
+ done
+}
+
+fib_ipv4_tos_test()
+{
+ local ns=$1; shift
+
+ RET=0
+
+ ip -n $ns link add name dummy1 type dummy
+ ip -n $ns link set dev dummy1 up
+
+ ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 0 metric 1024
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0 metric 1024" false
+ check_err $? "Route not in hardware when should"
+
+ ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 2 metric 1024
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 2 metric 1024" false
+ check_err $? "Highest TOS route not in hardware when should"
+
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0 metric 1024" true
+ check_err $? "Lowest TOS route still in hardware when should not"
+
+ ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 1 metric 1024
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 1 metric 1024" true
+ check_err $? "Middle TOS route in hardware when should not"
+
+ log_test "IPv4 routes with TOS"
+
+ ip -n $ns link del dev dummy1
+}
+
+fib_ipv4_metric_test()
+{
+ local ns=$1; shift
+
+ RET=0
+
+ ip -n $ns link add name dummy1 type dummy
+ ip -n $ns link set dev dummy1 up
+
+ ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1024
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" false
+ check_err $? "Route not in hardware when should"
+
+ ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1022
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1022" false
+ check_err $? "Lowest metric route not in hardware when should"
+
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" true
+ check_err $? "Highest metric route still in hardware when should not"
+
+ ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1023
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1023" true
+ check_err $? "Middle metric route in hardware when should not"
+
+ log_test "IPv4 routes with metric"
+
+ ip -n $ns link del dev dummy1
+}
+
+fib_ipv4_replace_test()
+{
+ local ns=$1; shift
+ local i
+
+ RET=0
+
+ for i in $(seq 1 2); do
+ ip -n $ns link add name dummy$i type dummy
+ ip -n $ns link set dev dummy$i up
+ done
+
+ ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1024
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" false
+ check_err $? "Route not in hardware when should"
+
+ ip -n $ns route replace 192.0.2.0/24 dev dummy2 metric 1024
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy2 metric 1024" false
+ check_err $? "Replacement route not in hardware when should"
+
+ # Add a route with an higher metric and make sure that replacing it
+ # does not affect the lower metric one.
+ ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1025
+ ip -n $ns route replace 192.0.2.0/24 dev dummy2 metric 1025
+
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy2 metric 1024" false
+ check_err $? "Lowest metric route not in hardware when should"
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy2 metric 1025" true
+ check_err $? "Highest metric route in hardware when should not"
+
+ log_test "IPv4 route replace"
+
+ for i in $(seq 1 2); do
+ ip -n $ns link del dev dummy$i
+ done
+}
+
+fib_ipv4_delete_test()
+{
+ local ns=$1; shift
+ local metric
+
+ RET=0
+
+ ip -n $ns link add name dummy1 type dummy
+ ip -n $ns link set dev dummy1 up
+
+ # Insert multiple routes with the same prefix and length and varying
+ # metrics. Make sure that throughout delete operations the lowest
+ # metric route is the one in hardware.
+ for metric in $(seq 1024 1026); do
+ ip -n $ns route add 192.0.2.0/24 dev dummy1 metric $metric
+ done
+
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" false
+ check_err $? "Route not in hardware when should"
+
+ ip -n $ns route del 192.0.2.0/24 dev dummy1 metric 1024
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1025" false
+ check_err $? "Lowest metric route not in hardware when should"
+
+ ip -n $ns route del 192.0.2.0/24 dev dummy1 metric 1026
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1025" false
+ check_err $? "Sole route not in hardware when should"
+
+ log_test "IPv4 route delete"
+
+ ip -n $ns link del dev dummy1
+}
+
+fib_ipv4_plen_test()
+{
+ local ns=$1; shift
+
+ RET=0
+
+ ip -n $ns link add name dummy1 type dummy
+ ip -n $ns link set dev dummy1 up
+
+ # Add two routes with the same key and different prefix length and
+ # make sure both are in hardware. It can be verfied that both are
+ # sharing the same leaf by checking the /proc/net/fib_trie
+ ip -n $ns route add 192.0.2.0/24 dev dummy1
+ ip -n $ns route add 192.0.2.0/25 dev dummy1
+
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1" false
+ check_err $? "/24 not in hardware when should"
+
+ fib4_trap_check $ns "192.0.2.0/25 dev dummy1" false
+ check_err $? "/25 not in hardware when should"
+
+ log_test "IPv4 routes with different prefix length"
+
+ ip -n $ns link del dev dummy1
+}
+
+fib_ipv4_replay_metric_test()
+{
+ local ns=$1; shift
+ local devlink_dev=$1; shift
+
+ RET=0
+
+ ip -n $ns link add name dummy1 type dummy
+ ip -n $ns link set dev dummy1 up
+
+ ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1024
+ ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1025
+
+ devlink -N $ns dev reload $devlink_dev
+
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" false
+ check_err $? "Lowest metric route not in hardware when should"
+
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1025" true
+ check_err $? "Highest metric route in hardware when should not"
+
+ log_test "IPv4 routes replay - metric"
+
+ ip -n $ns link del dev dummy1
+}
+
+fib_ipv4_replay_tos_test()
+{
+ local ns=$1; shift
+ local devlink_dev=$1; shift
+
+ RET=0
+
+ ip -n $ns link add name dummy1 type dummy
+ ip -n $ns link set dev dummy1 up
+
+ ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 0
+ ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 1
+
+ devlink -N $ns dev reload $devlink_dev
+
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 1" false
+ check_err $? "Highest TOS route not in hardware when should"
+
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0" true
+ check_err $? "Lowest TOS route in hardware when should not"
+
+ log_test "IPv4 routes replay - TOS"
+
+ ip -n $ns link del dev dummy1
+}
+
+fib_ipv4_replay_plen_test()
+{
+ local ns=$1; shift
+ local devlink_dev=$1; shift
+
+ RET=0
+
+ ip -n $ns link add name dummy1 type dummy
+ ip -n $ns link set dev dummy1 up
+
+ ip -n $ns route add 192.0.2.0/24 dev dummy1
+ ip -n $ns route add 192.0.2.0/25 dev dummy1
+
+ devlink -N $ns dev reload $devlink_dev
+
+ fib4_trap_check $ns "192.0.2.0/24 dev dummy1" false
+ check_err $? "/24 not in hardware when should"
+
+ fib4_trap_check $ns "192.0.2.0/25 dev dummy1" false
+ check_err $? "/25 not in hardware when should"
+
+ log_test "IPv4 routes replay - prefix length"
+
+ ip -n $ns link del dev dummy1
+}
+
+fib_ipv4_flush_test()
+{
+ local ns=$1; shift
+ local metric
+
+ RET=0
+
+ ip -n $ns link add name dummy1 type dummy
+ ip -n $ns link set dev dummy1 up
+
+ # Exercise the routes flushing code paths by inserting various
+ # prefix routes on a netdev and then deleting it.
+ for metric in $(seq 1 20); do
+ ip -n $ns route add 192.0.2.0/24 dev dummy1 metric $metric
+ done
+
+ ip -n $ns link del dev dummy1
+
+ log_test "IPv4 routes flushing"
+}
+
+fib_ipv6_add_test()
+{
+ local ns=$1; shift
+
+ RET=0
+
+ for i in $(seq 1 2); do
+ ip -n $ns link add name dummy$i type dummy
+ ip -n $ns link set dev dummy$i up
+ done
+
+ ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1024
+ fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" false
+ check_err $? "Route not in hardware when should"
+
+ ip -n $ns route append 2001:db8:1::/64 dev dummy2 metric 1024
+ fib6_trap_check $ns "2001:db8:1::/64 dev dummy2 metric 1024" true
+ check_err $? "Route in hardware when should not"
+
+ fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" false
+ check_err $? "Route not in hardware after appending route"
+
+ log_test "IPv6 single route add"
+
+ for i in $(seq 1 2); do
+ ip -n $ns link del dev dummy$i
+ done
+}
+
+fib_ipv6_metric_test()
+{
+ local ns=$1; shift
+
+ RET=0
+
+ ip -n $ns link add name dummy1 type dummy
+ ip -n $ns link set dev dummy1 up
+
+ ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1024
+ fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" false
+ check_err $? "Route not in hardware when should"
+
+ ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1022
+ fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1022" false
+ check_err $? "Lowest metric route not in hardware when should"
+
+ fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" true
+ check_err $? "Highest metric route still in hardware when should not"
+
+ ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1023
+ fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1023" true
+ check_err $? "Middle metric route in hardware when should not"
+
+ log_test "IPv6 routes with metric"
+
+ ip -n $ns link del dev dummy1
+}
+
+fib_ipv6_append_single_test()
+{
+ local ns=$1; shift
+
+ # When an IPv6 multipath route is added without the 'nexthop' keyword,
+ # different code paths are taken compared to when the keyword is used.
+ # This test tries to verify the former.
+ RET=0
+
+ for i in $(seq 1 2); do
+ ip -n $ns link add name dummy$i type dummy
+ ip -n $ns link set dev dummy$i up
+ ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
+ done
+
+ ip -n $ns route add 2001:db8:10::/64 via 2001:db8:1::2 metric 1024
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+ check_err $? "Route not in hardware when should"
+
+ ip -n $ns route append 2001:db8:10::/64 via 2001:db8:2::2 metric 1024
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+ check_err $? "Route not in hardware after appending"
+
+ ip -n $ns route add 2001:db8:10::/64 via 2001:db8:1::2 metric 1025
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
+ check_err $? "Route in hardware when should not"
+
+ ip -n $ns route append 2001:db8:10::/64 via 2001:db8:2::2 metric 1025
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
+ check_err $? "Route in hardware when should not after appending"
+
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+ check_err $? "Lowest metric route not in hardware when should"
+
+ log_test "IPv6 append single route without 'nexthop' keyword"
+
+ for i in $(seq 1 2); do
+ ip -n $ns link del dev dummy$i
+ done
+}
+
+fib_ipv6_replace_single_test()
+{
+ local ns=$1; shift
+ local i
+
+ RET=0
+
+ for i in $(seq 1 2); do
+ ip -n $ns link add name dummy$i type dummy
+ ip -n $ns link set dev dummy$i up
+ done
+
+ ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1024
+ fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" false
+ check_err $? "Route not in hardware when should"
+
+ ip -n $ns route replace 2001:db8:1::/64 dev dummy2 metric 1024
+ fib6_trap_check $ns "2001:db8:1::/64 dev dummy2 metric 1024" false
+ check_err $? "Replacement route not in hardware when should"
+
+ # Add a route with an higher metric and make sure that replacing it
+ # does not affect the lower metric one.
+ ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1025
+ ip -n $ns route replace 2001:db8:1::/64 dev dummy2 metric 1025
+
+ fib6_trap_check $ns "2001:db8:1::/64 dev dummy2 metric 1024" false
+ check_err $? "Lowest metric route not in hardware when should"
+ fib6_trap_check $ns "2001:db8:1::/64 dev dummy2 metric 1025" true
+ check_err $? "Highest metric route in hardware when should not"
+
+ log_test "IPv6 single route replace"
+
+ for i in $(seq 1 2); do
+ ip -n $ns link del dev dummy$i
+ done
+}
+
+fib_ipv6_metric_multipath_test()
+{
+ local ns=$1; shift
+
+ RET=0
+
+ for i in $(seq 1 2); do
+ ip -n $ns link add name dummy$i type dummy
+ ip -n $ns link set dev dummy$i up
+ ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
+ done
+
+ ip -n $ns route add 2001:db8:10::/64 metric 1024 \
+ nexthop via 2001:db8:1::2 dev dummy1 \
+ nexthop via 2001:db8:2::2 dev dummy2
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+ check_err $? "Route not in hardware when should"
+
+ ip -n $ns route add 2001:db8:10::/64 metric 1022 \
+ nexthop via 2001:db8:1::2 dev dummy1 \
+ nexthop via 2001:db8:2::2 dev dummy2
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1022" false
+ check_err $? "Lowest metric route not in hardware when should"
+
+ ip -n $ns route add 2001:db8:10::/64 metric 1023 \
+ nexthop via 2001:db8:1::2 dev dummy1 \
+ nexthop via 2001:db8:2::2 dev dummy2
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1024" true
+ check_err $? "Highest metric route still in hardware when should not"
+
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1023" true
+ check_err $? "Middle metric route in hardware when should not"
+
+ log_test "IPv6 multipath routes with metric"
+
+ for i in $(seq 1 2); do
+ ip -n $ns link del dev dummy$i
+ done
+}
+
+fib_ipv6_append_multipath_test()
+{
+ local ns=$1; shift
+
+ RET=0
+
+ for i in $(seq 1 3); do
+ ip -n $ns link add name dummy$i type dummy
+ ip -n $ns link set dev dummy$i up
+ ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
+ done
+
+ ip -n $ns route add 2001:db8:10::/64 metric 1024 \
+ nexthop via 2001:db8:1::2 dev dummy1
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+ check_err $? "Route not in hardware when should"
+
+ ip -n $ns route append 2001:db8:10::/64 metric 1024 \
+ nexthop via 2001:db8:2::2 dev dummy2 \
+ nexthop via 2001:db8:3::2 dev dummy3
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+ check_err $? "Route not in hardware after appending"
+
+ ip -n $ns route add 2001:db8:10::/64 metric 1025 \
+ nexthop via 2001:db8:1::2 dev dummy1
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
+ check_err $? "Route in hardware when should not"
+
+ ip -n $ns route append 2001:db8:10::/64 metric 1025 \
+ nexthop via 2001:db8:2::2 dev dummy2 \
+ nexthop via 2001:db8:3::2 dev dummy3
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
+ check_err $? "Route in hardware when should not after appending"
+
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+ check_err $? "Lowest metric route not in hardware when should"
+
+ log_test "IPv6 append multipath route with 'nexthop' keyword"
+
+ for i in $(seq 1 3); do
+ ip -n $ns link del dev dummy$i
+ done
+}
+
+fib_ipv6_replace_multipath_test()
+{
+ local ns=$1; shift
+ local i
+
+ RET=0
+
+ for i in $(seq 1 3); do
+ ip -n $ns link add name dummy$i type dummy
+ ip -n $ns link set dev dummy$i up
+ ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
+ done
+
+ ip -n $ns route add 2001:db8:10::/64 metric 1024 \
+ nexthop via 2001:db8:1::2 dev dummy1 \
+ nexthop via 2001:db8:2::2 dev dummy2
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+ check_err $? "Route not in hardware when should"
+
+ ip -n $ns route replace 2001:db8:10::/64 metric 1024 \
+ nexthop via 2001:db8:1::2 dev dummy1 \
+ nexthop via 2001:db8:3::2 dev dummy3
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+ check_err $? "Replacement route not in hardware when should"
+
+ # Add a route with an higher metric and make sure that replacing it
+ # does not affect the lower metric one.
+ ip -n $ns route add 2001:db8:10::/64 metric 1025 \
+ nexthop via 2001:db8:1::2 dev dummy1 \
+ nexthop via 2001:db8:2::2 dev dummy2
+ ip -n $ns route replace 2001:db8:10::/64 metric 1025 \
+ nexthop via 2001:db8:1::2 dev dummy1 \
+ nexthop via 2001:db8:3::2 dev dummy3
+
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+ check_err $? "Lowest metric route not in hardware when should"
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
+ check_err $? "Highest metric route in hardware when should not"
+
+ log_test "IPv6 multipath route replace"
+
+ for i in $(seq 1 3); do
+ ip -n $ns link del dev dummy$i
+ done
+}
+
+fib_ipv6_append_multipath_to_single_test()
+{
+ local ns=$1; shift
+
+ # Test that when the first route in the leaf is not a multipath route
+ # and we try to append a multipath route with the same metric to it, it
+ # is not notified.
+ RET=0
+
+ for i in $(seq 1 2); do
+ ip -n $ns link add name dummy$i type dummy
+ ip -n $ns link set dev dummy$i up
+ ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
+ done
+
+ ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
+ fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1024" false
+ check_err $? "Route not in hardware when should"
+
+ ip -n $ns route append 2001:db8:10::/64 metric 1024 \
+ nexthop via 2001:db8:2::2 dev dummy2
+ fib6_trap_check $ns "2001:db8:10::/64 dev dummy2 metric 1024" true
+ check_err $? "Route in hardware when should not"
+
+ fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1024" false
+ check_err $? "Route not in hardware after append"
+
+ log_test "IPv6 append multipath route to non-multipath route"
+
+ for i in $(seq 1 2); do
+ ip -n $ns link del dev dummy$i
+ done
+}
+
+fib_ipv6_delete_single_test()
+{
+ local ns=$1; shift
+
+ # Test various deletion scenarios, where only a single route is
+ # deleted from the FIB node.
+ for i in $(seq 1 2); do
+ ip -n $ns link add name dummy$i type dummy
+ ip -n $ns link set dev dummy$i up
+ ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
+ done
+
+ # Test deletion of a single route when it is the only route in the FIB
+ # node.
+ RET=0
+
+ ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
+ ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1024
+
+ log_test "IPv6 delete sole single route"
+
+ # Test that deletion of last route does not affect the first one.
+ RET=0
+
+ ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
+ ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1025
+ ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1025
+
+ fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1024" false
+ check_err $? "Route not in hardware after deleting higher metric route"
+
+ log_test "IPv6 delete single route not in hardware"
+
+ ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1024
+
+ # Test that first route is replaced by next single route in the FIB
+ # node.
+ RET=0
+
+ ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
+ ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1025
+ ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1024
+
+ fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1025" false
+ check_err $? "Route not in hardware after deleting lowest metric route"
+
+ log_test "IPv6 delete single route - replaced by single"
+
+ ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1025
+
+ # Test that first route is replaced by next multipath route in the FIB
+ # node.
+ RET=0
+
+ ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
+ ip -n $ns route add 2001:db8:10::/64 metric 1025 \
+ nexthop via 2001:db8:1::2 dev dummy1 \
+ nexthop via 2001:db8:2::2 dev dummy2
+ ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1024
+
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1025" false
+ check_err $? "Route not in hardware after deleting lowest metric route"
+
+ log_test "IPv6 delete single route - replaced by multipath"
+
+ ip -n $ns route del 2001:db8:10::/64 metric 1025
+
+ # Test deletion of a single nexthop from a multipath route.
+ ip -n $ns route add 2001:db8:10::/64 metric 1024 \
+ nexthop via 2001:db8:1::2 dev dummy1 \
+ nexthop via 2001:db8:2::2 dev dummy2
+ ip -n $ns route del 2001:db8:10::/64 metric 1024 \
+ nexthop via 2001:db8:1::2 dev dummy1
+
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+ check_err $? "Route not in hardware after deleting a single nexthop"
+
+ log_test "IPv6 delete single nexthop"
+
+ ip -n $ns route del 2001:db8:10::/64 metric 1024
+
+ for i in $(seq 1 2); do
+ ip -n $ns link del dev dummy$i
+ done
+}
+
+fib_ipv6_delete_multipath_test()
+{
+ local ns=$1; shift
+
+ # Test various deletion scenarios, where an entire multipath route is
+ # deleted from the FIB node.
+ for i in $(seq 1 2); do
+ ip -n $ns link add name dummy$i type dummy
+ ip -n $ns link set dev dummy$i up
+ ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
+ done
+
+ # Test deletion of a multipath route when it is the only route in the
+ # FIB node.
+ RET=0
+
+ ip -n $ns route add 2001:db8:10::/64 metric 1024 \
+ nexthop via 2001:db8:1::2 dev dummy1 \
+ nexthop via 2001:db8:2::2 dev dummy2
+ ip -n $ns route del 2001:db8:10::/64 metric 1024
+
+ log_test "IPv6 delete sole multipath route"
+
+ # Test that deletion of last route does not affect the first one.
+ RET=0
+
+ ip -n $ns route add 2001:db8:10::/64 metric 1024 \
+ nexthop via 2001:db8:1::2 dev dummy1 \
+ nexthop via 2001:db8:2::2 dev dummy2
+ ip -n $ns route add 2001:db8:10::/64 metric 1025 \
+ nexthop via 2001:db8:1::2 dev dummy1 \
+ nexthop via 2001:db8:2::2 dev dummy2
+ ip -n $ns route del 2001:db8:10::/64 metric 1025
+
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+ check_err $? "Route not in hardware after deleting higher metric route"
+
+ log_test "IPv6 delete multipath route not in hardware"
+
+ ip -n $ns route del 2001:db8:10::/64 metric 1024
+
+ # Test that first route is replaced by next single route in the FIB
+ # node.
+ RET=0
+
+ ip -n $ns route add 2001:db8:10::/64 metric 1024 \
+ nexthop via 2001:db8:1::2 dev dummy1 \
+ nexthop via 2001:db8:2::2 dev dummy2
+ ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1025
+ ip -n $ns route del 2001:db8:10::/64 metric 1024
+
+ fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1025" false
+ check_err $? "Route not in hardware after deleting lowest metric route"
+
+ log_test "IPv6 delete multipath route - replaced by single"
+
+ ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1025
+
+ # Test that first route is replaced by next multipath route in the FIB
+ # node.
+ RET=0
+
+ ip -n $ns route add 2001:db8:10::/64 metric 1024 \
+ nexthop via 2001:db8:1::2 dev dummy1 \
+ nexthop via 2001:db8:2::2 dev dummy2
+ ip -n $ns route add 2001:db8:10::/64 metric 1025 \
+ nexthop via 2001:db8:1::2 dev dummy1 \
+ nexthop via 2001:db8:2::2 dev dummy2
+ ip -n $ns route del 2001:db8:10::/64 metric 1024
+
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1025" false
+ check_err $? "Route not in hardware after deleting lowest metric route"
+
+ log_test "IPv6 delete multipath route - replaced by multipath"
+
+ ip -n $ns route del 2001:db8:10::/64 metric 1025
+
+ for i in $(seq 1 2); do
+ ip -n $ns link del dev dummy$i
+ done
+}
+
+fib_ipv6_replay_single_test()
+{
+ local ns=$1; shift
+ local devlink_dev=$1; shift
+
+ RET=0
+
+ for i in $(seq 1 2); do
+ ip -n $ns link add name dummy$i type dummy
+ ip -n $ns link set dev dummy$i up
+ done
+
+ ip -n $ns route add 2001:db8:1::/64 dev dummy1
+ ip -n $ns route append 2001:db8:1::/64 dev dummy2
+
+ devlink -N $ns dev reload $devlink_dev
+
+ fib6_trap_check $ns "2001:db8:1::/64 dev dummy1" false
+ check_err $? "First route not in hardware when should"
+
+ fib6_trap_check $ns "2001:db8:1::/64 dev dummy2" true
+ check_err $? "Second route in hardware when should not"
+
+ log_test "IPv6 routes replay - single route"
+
+ for i in $(seq 1 2); do
+ ip -n $ns link del dev dummy$i
+ done
+}
+
+fib_ipv6_replay_multipath_test()
+{
+ local ns=$1; shift
+ local devlink_dev=$1; shift
+
+ RET=0
+
+ for i in $(seq 1 2); do
+ ip -n $ns link add name dummy$i type dummy
+ ip -n $ns link set dev dummy$i up
+ ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
+ done
+
+ ip -n $ns route add 2001:db8:10::/64 metric 1024 \
+ nexthop via 2001:db8:1::2 dev dummy1 \
+ nexthop via 2001:db8:2::2 dev dummy2
+ ip -n $ns route add 2001:db8:10::/64 metric 1025 \
+ nexthop via 2001:db8:1::2 dev dummy1 \
+ nexthop via 2001:db8:2::2 dev dummy2
+
+ devlink -N $ns dev reload $devlink_dev
+
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+ check_err $? "First route not in hardware when should"
+
+ fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
+ check_err $? "Second route in hardware when should not"
+
+ log_test "IPv6 routes replay - multipath route"
+
+ for i in $(seq 1 2); do
+ ip -n $ns link del dev dummy$i
+ done
+}
diff --git a/tools/testing/selftests/net/forwarding/forwarding.config.sample b/tools/testing/selftests/net/forwarding/forwarding.config.sample
new file mode 100644
index 000000000..e51def39f
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/forwarding.config.sample
@@ -0,0 +1,45 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+##############################################################################
+# Topology description. p1 looped back to p2, p3 to p4 and so on.
+declare -A NETIFS
+
+NETIFS[p1]=veth0
+NETIFS[p2]=veth1
+NETIFS[p3]=veth2
+NETIFS[p4]=veth3
+NETIFS[p5]=veth4
+NETIFS[p6]=veth5
+NETIFS[p7]=veth6
+NETIFS[p8]=veth7
+NETIFS[p9]=veth8
+NETIFS[p10]=veth9
+
+# Port that does not have a cable connected.
+NETIF_NO_CABLE=eth8
+
+##############################################################################
+# Defines
+
+# IPv4 ping utility name
+PING=ping
+# IPv6 ping utility name. Some distributions use 'ping' for IPv6.
+PING6=ping6
+# Packet generator. Some distributions use 'mz'.
+MZ=mausezahn
+# Time to wait after interfaces participating in the test are all UP
+WAIT_TIME=5
+# Whether to pause on failure or not.
+PAUSE_ON_FAIL=no
+# Whether to pause on cleanup or not.
+PAUSE_ON_CLEANUP=no
+# Type of network interface to create
+NETIF_TYPE=veth
+# Whether to create virtual interfaces (veth) or not
+NETIF_CREATE=yes
+# Timeout (in seconds) before ping exits regardless of how many packets have
+# been sent or received
+PING_TIMEOUT=5
+# IPv6 traceroute utility name.
+TROUTE6=traceroute6
diff --git a/tools/testing/selftests/net/forwarding/gre_inner_v4_multipath.sh b/tools/testing/selftests/net/forwarding/gre_inner_v4_multipath.sh
new file mode 100755
index 000000000..e4009f658
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/gre_inner_v4_multipath.sh
@@ -0,0 +1,305 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test traffic distribution when there are multiple routes between an IPv4
+# GRE tunnel. The tunnel carries IPv4 traffic between multiple hosts.
+# Multiple routes are in the underlay network. With the default multipath
+# policy, SW2 will only look at the outer IP addresses, hence only a single
+# route would be used.
+#
+# +-------------------------+
+# | H1 |
+# | $h1 + |
+# | 192.0.3.{2-62}/24 | |
+# +-------------------|-----+
+# |
+# +-------------------|------------------------+
+# | SW1 | |
+# | $ol1 + |
+# | 192.0.3.1/24 |
+# | |
+# | + g1 (gre) |
+# | loc=192.0.2.65 |
+# | rem=192.0.2.66 --. |
+# | tos=inherit | |
+# | v |
+# | + $ul1 |
+# | | 192.0.2.129/28 |
+# +---------------------|----------------------+
+# |
+# +---------------------|----------------------+
+# | SW2 | |
+# | $ul21 + |
+# | 192.0.2.130/28 |
+# | | |
+# ! ________________|_____ |
+# | / \ |
+# | | | |
+# | + $ul22.111 (vlan) + $ul22.222 (vlan) |
+# | | 192.0.2.145/28 | 192.0.2.161/28 |
+# | | | |
+# +--|----------------------|------------------+
+# | |
+# +--|----------------------|------------------+
+# | | | |
+# | + $ul32.111 (vlan) + $ul32.222 (vlan) |
+# | | 192.0.2.146/28 | 192.0.2.162/28 |
+# | | | |
+# | \______________________/ |
+# | | |
+# | | |
+# | $ul31 + |
+# | 192.0.2.177/28 | SW3 |
+# +---------------------|----------------------+
+# |
+# +---------------------|----------------------+
+# | + $ul4 |
+# | ^ 192.0.2.178/28 |
+# | | |
+# | + g2 (gre) | |
+# | loc=192.0.2.66 | |
+# | rem=192.0.2.65 --' |
+# | tos=inherit |
+# | |
+# | $ol4 + |
+# | 192.0.4.1/24 | SW4 |
+# +--------------------|-----------------------+
+# |
+# +--------------------|---------+
+# | | |
+# | $h2 + |
+# | 192.0.4.{2-62}/24 H2 |
+# +------------------------------+
+
+ALL_TESTS="
+ ping_ipv4
+ multipath_ipv4
+"
+
+NUM_NETIFS=10
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.3.2/24
+ ip route add vrf v$h1 192.0.4.0/24 via 192.0.3.1
+}
+
+h1_destroy()
+{
+ ip route del vrf v$h1 192.0.4.0/24 via 192.0.3.1
+ simple_if_fini $h1 192.0.3.2/24
+}
+
+sw1_create()
+{
+ simple_if_init $ol1 192.0.3.1/24
+ __simple_if_init $ul1 v$ol1 192.0.2.129/28
+
+ tunnel_create g1 gre 192.0.2.65 192.0.2.66 tos inherit dev v$ol1
+ __simple_if_init g1 v$ol1 192.0.2.65/32
+ ip route add vrf v$ol1 192.0.2.66/32 via 192.0.2.130
+
+ ip route add vrf v$ol1 192.0.4.0/24 nexthop dev g1
+}
+
+sw1_destroy()
+{
+ ip route del vrf v$ol1 192.0.4.0/24
+
+ ip route del vrf v$ol1 192.0.2.66/32
+ __simple_if_fini g1 192.0.2.65/32
+ tunnel_destroy g1
+
+ __simple_if_fini $ul1 192.0.2.129/28
+ simple_if_fini $ol1 192.0.3.1/24
+}
+
+sw2_create()
+{
+ simple_if_init $ul21 192.0.2.130/28
+ __simple_if_init $ul22 v$ul21
+ vlan_create $ul22 111 v$ul21 192.0.2.145/28
+ vlan_create $ul22 222 v$ul21 192.0.2.161/28
+
+ ip route add vrf v$ul21 192.0.2.65/32 via 192.0.2.129
+ ip route add vrf v$ul21 192.0.2.66/32 \
+ nexthop via 192.0.2.146 \
+ nexthop via 192.0.2.162
+}
+
+sw2_destroy()
+{
+ ip route del vrf v$ul21 192.0.2.66/32
+ ip route del vrf v$ul21 192.0.2.65/32
+
+ vlan_destroy $ul22 222
+ vlan_destroy $ul22 111
+ __simple_if_fini $ul22
+ simple_if_fini $ul21 192.0.2.130/28
+}
+
+sw3_create()
+{
+ simple_if_init $ul31 192.0.2.177/28
+ __simple_if_init $ul32 v$ul31
+ vlan_create $ul32 111 v$ul31 192.0.2.146/28
+ vlan_create $ul32 222 v$ul31 192.0.2.162/28
+
+ ip route add vrf v$ul31 192.0.2.66/32 via 192.0.2.178
+ ip route add vrf v$ul31 192.0.2.65/32 \
+ nexthop via 192.0.2.145 \
+ nexthop via 192.0.2.161
+
+ tc qdisc add dev $ul32 clsact
+ tc filter add dev $ul32 ingress pref 111 prot 802.1Q \
+ flower vlan_id 111 action pass
+ tc filter add dev $ul32 ingress pref 222 prot 802.1Q \
+ flower vlan_id 222 action pass
+}
+
+sw3_destroy()
+{
+ tc qdisc del dev $ul32 clsact
+
+ ip route del vrf v$ul31 192.0.2.65/32
+ ip route del vrf v$ul31 192.0.2.66/32
+
+ vlan_destroy $ul32 222
+ vlan_destroy $ul32 111
+ __simple_if_fini $ul32
+ simple_if_fini $ul31 192.0.2.177/28
+}
+
+sw4_create()
+{
+ simple_if_init $ol4 192.0.4.1/24
+ __simple_if_init $ul4 v$ol4 192.0.2.178/28
+
+ tunnel_create g2 gre 192.0.2.66 192.0.2.65 tos inherit dev v$ol4
+ __simple_if_init g2 v$ol4 192.0.2.66/32
+ ip route add vrf v$ol4 192.0.2.65/32 via 192.0.2.177
+
+ ip route add vrf v$ol4 192.0.3.0/24 nexthop dev g2
+}
+
+sw4_destroy()
+{
+ ip route del vrf v$ol4 192.0.3.0/24
+
+ ip route del vrf v$ol4 192.0.2.65/32
+ __simple_if_fini g2 192.0.2.66/32
+ tunnel_destroy g2
+
+ __simple_if_fini $ul4 192.0.2.178/28
+ simple_if_fini $ol4 192.0.4.1/24
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.4.2/24
+ ip route add vrf v$h2 192.0.3.0/24 via 192.0.4.1
+}
+
+h2_destroy()
+{
+ ip route del vrf v$h2 192.0.3.0/24 via 192.0.4.1
+ simple_if_fini $h2 192.0.4.2/24
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+
+ ol1=${NETIFS[p2]}
+ ul1=${NETIFS[p3]}
+
+ ul21=${NETIFS[p4]}
+ ul22=${NETIFS[p5]}
+
+ ul32=${NETIFS[p6]}
+ ul31=${NETIFS[p7]}
+
+ ul4=${NETIFS[p8]}
+ ol4=${NETIFS[p9]}
+
+ h2=${NETIFS[p10]}
+
+ vrf_prepare
+ h1_create
+ sw1_create
+ sw2_create
+ sw3_create
+ sw4_create
+ h2_create
+
+ forwarding_enable
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ forwarding_restore
+
+ h2_destroy
+ sw4_destroy
+ sw3_destroy
+ sw2_destroy
+ sw1_destroy
+ h1_destroy
+ vrf_cleanup
+}
+
+multipath4_test()
+{
+ local what=$1; shift
+ local weight1=$1; shift
+ local weight2=$1; shift
+
+ sysctl_set net.ipv4.fib_multipath_hash_policy 2
+ ip route replace vrf v$ul21 192.0.2.66/32 \
+ nexthop via 192.0.2.146 weight $weight1 \
+ nexthop via 192.0.2.162 weight $weight2
+
+ local t0_111=$(tc_rule_stats_get $ul32 111 ingress)
+ local t0_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+ ip vrf exec v$h1 \
+ $MZ $h1 -q -p 64 -A "192.0.3.2-192.0.3.62" -B "192.0.4.2-192.0.4.62" \
+ -d 1msec -c 50 -t udp "sp=1024,dp=1024"
+ sleep 1
+
+ local t1_111=$(tc_rule_stats_get $ul32 111 ingress)
+ local t1_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+ local d111=$((t1_111 - t0_111))
+ local d222=$((t1_222 - t0_222))
+ multipath_eval "$what" $weight1 $weight2 $d111 $d222
+
+ ip route replace vrf v$ul21 192.0.2.66/32 \
+ nexthop via 192.0.2.146 \
+ nexthop via 192.0.2.162
+ sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+ping_ipv4()
+{
+ ping_test $h1 192.0.4.2
+}
+
+multipath_ipv4()
+{
+ log_info "Running IPv4 over GRE over IPv4 multipath tests"
+ multipath4_test "ECMP" 1 1
+ multipath4_test "Weighted MP 2:1" 2 1
+ multipath4_test "Weighted MP 11:45" 11 45
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/gre_inner_v6_multipath.sh b/tools/testing/selftests/net/forwarding/gre_inner_v6_multipath.sh
new file mode 100755
index 000000000..e449475c4
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/gre_inner_v6_multipath.sh
@@ -0,0 +1,306 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test traffic distribution when there are multiple routes between an IPv4
+# GRE tunnel. The tunnel carries IPv6 traffic between multiple hosts.
+# Multiple routes are in the underlay network. With the default multipath
+# policy, SW2 will only look at the outer IP addresses, hence only a single
+# route would be used.
+#
+# +-------------------------+
+# | H1 |
+# | $h1 + |
+# | 2001:db8:1::2/64 | |
+# +-------------------|-----+
+# |
+# +-------------------|------------------------+
+# | SW1 | |
+# | $ol1 + |
+# | 2001:db8:1::1/64 |
+# | |
+# | + g1 (gre) |
+# | loc=192.0.2.65 |
+# | rem=192.0.2.66 --. |
+# | tos=inherit | |
+# | v |
+# | + $ul1 |
+# | | 192.0.2.129/28 |
+# +---------------------|----------------------+
+# |
+# +---------------------|----------------------+
+# | SW2 | |
+# | $ul21 + |
+# | 192.0.2.130/28 |
+# | | |
+# ! ________________|_____ |
+# | / \ |
+# | | | |
+# | + $ul22.111 (vlan) + $ul22.222 (vlan) |
+# | | 192.0.2.145/28 | 192.0.2.161/28 |
+# | | | |
+# +--|----------------------|------------------+
+# | |
+# +--|----------------------|------------------+
+# | | | |
+# | + $ul32.111 (vlan) + $ul32.222 (vlan) |
+# | | 192.0.2.146/28 | 192.0.2.162/28 |
+# | | | |
+# | \______________________/ |
+# | | |
+# | | |
+# | $ul31 + |
+# | 192.0.2.177/28 | SW3 |
+# +---------------------|----------------------+
+# |
+# +---------------------|----------------------+
+# | + $ul4 |
+# | ^ 192.0.2.178/28 |
+# | | |
+# | + g2 (gre) | |
+# | loc=192.0.2.66 | |
+# | rem=192.0.2.65 --' |
+# | tos=inherit |
+# | |
+# | $ol4 + |
+# | 2001:db8:2::1/64 | SW4 |
+# +--------------------|-----------------------+
+# |
+# +--------------------|---------+
+# | | |
+# | $h2 + |
+# | 2001:db8:2::2/64 H2 |
+# +------------------------------+
+
+ALL_TESTS="
+ ping_ipv6
+ multipath_ipv6
+"
+
+NUM_NETIFS=10
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 2001:db8:1::2/64
+ ip -6 route add vrf v$h1 2001:db8:2::/64 via 2001:db8:1::1
+}
+
+h1_destroy()
+{
+ ip -6 route del vrf v$h1 2001:db8:2::/64 via 2001:db8:1::1
+ simple_if_fini $h1 2001:db8:1::2/64
+}
+
+sw1_create()
+{
+ simple_if_init $ol1 2001:db8:1::1/64
+ __simple_if_init $ul1 v$ol1 192.0.2.129/28
+
+ tunnel_create g1 gre 192.0.2.65 192.0.2.66 tos inherit dev v$ol1
+ __simple_if_init g1 v$ol1 192.0.2.65/32
+ ip route add vrf v$ol1 192.0.2.66/32 via 192.0.2.130
+
+ ip -6 route add vrf v$ol1 2001:db8:2::/64 dev g1
+}
+
+sw1_destroy()
+{
+ ip -6 route del vrf v$ol1 2001:db8:2::/64
+
+ ip route del vrf v$ol1 192.0.2.66/32
+ __simple_if_fini g1 192.0.2.65/32
+ tunnel_destroy g1
+
+ __simple_if_fini $ul1 192.0.2.129/28
+ simple_if_fini $ol1 2001:db8:1::1/64
+}
+
+sw2_create()
+{
+ simple_if_init $ul21 192.0.2.130/28
+ __simple_if_init $ul22 v$ul21
+ vlan_create $ul22 111 v$ul21 192.0.2.145/28
+ vlan_create $ul22 222 v$ul21 192.0.2.161/28
+
+ ip route add vrf v$ul21 192.0.2.65/32 via 192.0.2.129
+ ip route add vrf v$ul21 192.0.2.66/32 \
+ nexthop via 192.0.2.146 \
+ nexthop via 192.0.2.162
+}
+
+sw2_destroy()
+{
+ ip route del vrf v$ul21 192.0.2.66/32
+ ip route del vrf v$ul21 192.0.2.65/32
+
+ vlan_destroy $ul22 222
+ vlan_destroy $ul22 111
+ __simple_if_fini $ul22
+ simple_if_fini $ul21 192.0.2.130/28
+}
+
+sw3_create()
+{
+ simple_if_init $ul31 192.0.2.177/28
+ __simple_if_init $ul32 v$ul31
+ vlan_create $ul32 111 v$ul31 192.0.2.146/28
+ vlan_create $ul32 222 v$ul31 192.0.2.162/28
+
+ ip route add vrf v$ul31 192.0.2.66/32 via 192.0.2.178
+ ip route add vrf v$ul31 192.0.2.65/32 \
+ nexthop via 192.0.2.145 \
+ nexthop via 192.0.2.161
+
+ tc qdisc add dev $ul32 clsact
+ tc filter add dev $ul32 ingress pref 111 prot 802.1Q \
+ flower vlan_id 111 action pass
+ tc filter add dev $ul32 ingress pref 222 prot 802.1Q \
+ flower vlan_id 222 action pass
+}
+
+sw3_destroy()
+{
+ tc qdisc del dev $ul32 clsact
+
+ ip route del vrf v$ul31 192.0.2.65/32
+ ip route del vrf v$ul31 192.0.2.66/32
+
+ vlan_destroy $ul32 222
+ vlan_destroy $ul32 111
+ __simple_if_fini $ul32
+ simple_if_fini $ul31 192.0.2.177/28
+}
+
+sw4_create()
+{
+ simple_if_init $ol4 2001:db8:2::1/64
+ __simple_if_init $ul4 v$ol4 192.0.2.178/28
+
+ tunnel_create g2 gre 192.0.2.66 192.0.2.65 tos inherit dev v$ol4
+ __simple_if_init g2 v$ol4 192.0.2.66/32
+ ip route add vrf v$ol4 192.0.2.65/32 via 192.0.2.177
+
+ ip -6 route add vrf v$ol4 2001:db8:1::/64 dev g2
+}
+
+sw4_destroy()
+{
+ ip -6 route del vrf v$ol4 2001:db8:1::/64
+
+ ip route del vrf v$ol4 192.0.2.65/32
+ __simple_if_fini g2 192.0.2.66/32
+ tunnel_destroy g2
+
+ __simple_if_fini $ul4 192.0.2.178/28
+ simple_if_fini $ol4 2001:db8:2::1/64
+}
+
+h2_create()
+{
+ simple_if_init $h2 2001:db8:2::2/64
+ ip -6 route add vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+ ip -6 route del vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1
+ simple_if_fini $h2 2001:db8:2::2/64
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+
+ ol1=${NETIFS[p2]}
+ ul1=${NETIFS[p3]}
+
+ ul21=${NETIFS[p4]}
+ ul22=${NETIFS[p5]}
+
+ ul32=${NETIFS[p6]}
+ ul31=${NETIFS[p7]}
+
+ ul4=${NETIFS[p8]}
+ ol4=${NETIFS[p9]}
+
+ h2=${NETIFS[p10]}
+
+ vrf_prepare
+ h1_create
+ sw1_create
+ sw2_create
+ sw3_create
+ sw4_create
+ h2_create
+
+ forwarding_enable
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ forwarding_restore
+
+ h2_destroy
+ sw4_destroy
+ sw3_destroy
+ sw2_destroy
+ sw1_destroy
+ h1_destroy
+ vrf_cleanup
+}
+
+multipath6_test()
+{
+ local what=$1; shift
+ local weight1=$1; shift
+ local weight2=$1; shift
+
+ sysctl_set net.ipv4.fib_multipath_hash_policy 2
+ ip route replace vrf v$ul21 192.0.2.66/32 \
+ nexthop via 192.0.2.146 weight $weight1 \
+ nexthop via 192.0.2.162 weight $weight2
+
+ local t0_111=$(tc_rule_stats_get $ul32 111 ingress)
+ local t0_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+ ip vrf exec v$h1 \
+ $MZ $h1 -6 -q -p 64 -A "2001:db8:1::2-2001:db8:1::1e" \
+ -B "2001:db8:2::2-2001:db8:2::1e" \
+ -d 1msec -c 50 -t udp "sp=1024,dp=1024"
+ sleep 1
+
+ local t1_111=$(tc_rule_stats_get $ul32 111 ingress)
+ local t1_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+ local d111=$((t1_111 - t0_111))
+ local d222=$((t1_222 - t0_222))
+ multipath_eval "$what" $weight1 $weight2 $d111 $d222
+
+ ip route replace vrf v$ul21 192.0.2.66/32 \
+ nexthop via 192.0.2.146 \
+ nexthop via 192.0.2.162
+ sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+ping_ipv6()
+{
+ ping_test $h1 2001:db8:2::2
+}
+
+multipath_ipv6()
+{
+ log_info "Running IPv6 over GRE over IPv4 multipath tests"
+ multipath6_test "ECMP" 1 1
+ multipath6_test "Weighted MP 2:1" 2 1
+ multipath6_test "Weighted MP 11:45" 11 45
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/gre_multipath.sh b/tools/testing/selftests/net/forwarding/gre_multipath.sh
new file mode 100755
index 000000000..a8d8e8b3d
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/gre_multipath.sh
@@ -0,0 +1,257 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test traffic distribution when a wECMP route forwards traffic to two GRE
+# tunnels.
+#
+# +-------------------------+
+# | H1 |
+# | $h1 + |
+# | 192.0.2.1/28 | |
+# +-------------------|-----+
+# |
+# +-------------------|------------------------+
+# | SW1 | |
+# | $ol1 + |
+# | 192.0.2.2/28 |
+# | |
+# | + g1a (gre) + g1b (gre) |
+# | loc=192.0.2.65 loc=192.0.2.81 |
+# | rem=192.0.2.66 --. rem=192.0.2.82 --. |
+# | tos=inherit | tos=inherit | |
+# | .------------------' | |
+# | | .------------------' |
+# | v v |
+# | + $ul1.111 (vlan) + $ul1.222 (vlan) |
+# | | 192.0.2.129/28 | 192.0.2.145/28 |
+# | \ / |
+# | \________________/ |
+# | | |
+# | + $ul1 |
+# +------------|-------------------------------+
+# |
+# +------------|-------------------------------+
+# | SW2 + $ul2 |
+# | _______|________ |
+# | / \ |
+# | / \ |
+# | + $ul2.111 (vlan) + $ul2.222 (vlan) |
+# | ^ 192.0.2.130/28 ^ 192.0.2.146/28 |
+# | | | |
+# | | '------------------. |
+# | '------------------. | |
+# | + g2a (gre) | + g2b (gre) | |
+# | loc=192.0.2.66 | loc=192.0.2.82 | |
+# | rem=192.0.2.65 --' rem=192.0.2.81 --' |
+# | tos=inherit tos=inherit |
+# | |
+# | $ol2 + |
+# | 192.0.2.17/28 | |
+# +-------------------|------------------------+
+# |
+# +-------------------|-----+
+# | H2 | |
+# | $h2 + |
+# | 192.0.2.18/28 |
+# +-------------------------+
+
+ALL_TESTS="
+ ping_ipv4
+ multipath_ipv4
+"
+
+NUM_NETIFS=6
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+ ip route add vrf v$h1 192.0.2.16/28 via 192.0.2.2
+}
+
+h1_destroy()
+{
+ ip route del vrf v$h1 192.0.2.16/28 via 192.0.2.2
+ simple_if_fini $h1 192.0.2.1/28
+}
+
+sw1_create()
+{
+ simple_if_init $ol1 192.0.2.2/28
+ __simple_if_init $ul1 v$ol1
+ vlan_create $ul1 111 v$ol1 192.0.2.129/28
+ vlan_create $ul1 222 v$ol1 192.0.2.145/28
+
+ tunnel_create g1a gre 192.0.2.65 192.0.2.66 tos inherit dev v$ol1
+ __simple_if_init g1a v$ol1 192.0.2.65/32
+ ip route add vrf v$ol1 192.0.2.66/32 via 192.0.2.130
+
+ tunnel_create g1b gre 192.0.2.81 192.0.2.82 tos inherit dev v$ol1
+ __simple_if_init g1b v$ol1 192.0.2.81/32
+ ip route add vrf v$ol1 192.0.2.82/32 via 192.0.2.146
+
+ ip route add vrf v$ol1 192.0.2.16/28 \
+ nexthop dev g1a \
+ nexthop dev g1b
+}
+
+sw1_destroy()
+{
+ ip route del vrf v$ol1 192.0.2.16/28
+
+ ip route del vrf v$ol1 192.0.2.82/32 via 192.0.2.146
+ __simple_if_fini g1b 192.0.2.81/32
+ tunnel_destroy g1b
+
+ ip route del vrf v$ol1 192.0.2.66/32 via 192.0.2.130
+ __simple_if_fini g1a 192.0.2.65/32
+ tunnel_destroy g1a
+
+ vlan_destroy $ul1 222
+ vlan_destroy $ul1 111
+ __simple_if_fini $ul1
+ simple_if_fini $ol1 192.0.2.2/28
+}
+
+sw2_create()
+{
+ simple_if_init $ol2 192.0.2.17/28
+ __simple_if_init $ul2 v$ol2
+ vlan_create $ul2 111 v$ol2 192.0.2.130/28
+ vlan_create $ul2 222 v$ol2 192.0.2.146/28
+
+ tunnel_create g2a gre 192.0.2.66 192.0.2.65 tos inherit dev v$ol2
+ __simple_if_init g2a v$ol2 192.0.2.66/32
+ ip route add vrf v$ol2 192.0.2.65/32 via 192.0.2.129
+
+ tunnel_create g2b gre 192.0.2.82 192.0.2.81 tos inherit dev v$ol2
+ __simple_if_init g2b v$ol2 192.0.2.82/32
+ ip route add vrf v$ol2 192.0.2.81/32 via 192.0.2.145
+
+ ip route add vrf v$ol2 192.0.2.0/28 \
+ nexthop dev g2a \
+ nexthop dev g2b
+
+ tc qdisc add dev $ul2 clsact
+ tc filter add dev $ul2 ingress pref 111 prot 802.1Q \
+ flower vlan_id 111 action pass
+ tc filter add dev $ul2 ingress pref 222 prot 802.1Q \
+ flower vlan_id 222 action pass
+}
+
+sw2_destroy()
+{
+ tc qdisc del dev $ul2 clsact
+
+ ip route del vrf v$ol2 192.0.2.0/28
+
+ ip route del vrf v$ol2 192.0.2.81/32 via 192.0.2.145
+ __simple_if_fini g2b 192.0.2.82/32
+ tunnel_destroy g2b
+
+ ip route del vrf v$ol2 192.0.2.65/32 via 192.0.2.129
+ __simple_if_fini g2a 192.0.2.66/32
+ tunnel_destroy g2a
+
+ vlan_destroy $ul2 222
+ vlan_destroy $ul2 111
+ __simple_if_fini $ul2
+ simple_if_fini $ol2 192.0.2.17/28
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.18/28
+ ip route add vrf v$h2 192.0.2.0/28 via 192.0.2.17
+}
+
+h2_destroy()
+{
+ ip route del vrf v$h2 192.0.2.0/28 via 192.0.2.17
+ simple_if_fini $h2 192.0.2.18/28
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ ol1=${NETIFS[p2]}
+
+ ul1=${NETIFS[p3]}
+ ul2=${NETIFS[p4]}
+
+ ol2=${NETIFS[p5]}
+ h2=${NETIFS[p6]}
+
+ vrf_prepare
+ h1_create
+ sw1_create
+ sw2_create
+ h2_create
+
+ forwarding_enable
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ forwarding_restore
+
+ h2_destroy
+ sw2_destroy
+ sw1_destroy
+ h1_destroy
+ vrf_cleanup
+}
+
+multipath4_test()
+{
+ local what=$1; shift
+ local weight1=$1; shift
+ local weight2=$1; shift
+
+ sysctl_set net.ipv4.fib_multipath_hash_policy 1
+ ip route replace vrf v$ol1 192.0.2.16/28 \
+ nexthop dev g1a weight $weight1 \
+ nexthop dev g1b weight $weight2
+
+ local t0_111=$(tc_rule_stats_get $ul2 111 ingress)
+ local t0_222=$(tc_rule_stats_get $ul2 222 ingress)
+
+ ip vrf exec v$h1 \
+ $MZ $h1 -q -p 64 -A 192.0.2.1 -B 192.0.2.18 \
+ -d 1msec -t udp "sp=1024,dp=0-32768"
+
+ local t1_111=$(tc_rule_stats_get $ul2 111 ingress)
+ local t1_222=$(tc_rule_stats_get $ul2 222 ingress)
+
+ local d111=$((t1_111 - t0_111))
+ local d222=$((t1_222 - t0_222))
+ multipath_eval "$what" $weight1 $weight2 $d111 $d222
+
+ ip route replace vrf v$ol1 192.0.2.16/28 \
+ nexthop dev g1a \
+ nexthop dev g1b
+ sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+ping_ipv4()
+{
+ ping_test $h1 192.0.2.18
+}
+
+multipath_ipv4()
+{
+ log_info "Running IPv4 multipath tests"
+ multipath4_test "ECMP" 1 1
+ multipath4_test "Weighted MP 2:1" 2 1
+ multipath4_test "Weighted MP 11:45" 11 45
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ip6_forward_instats_vrf.sh b/tools/testing/selftests/net/forwarding/ip6_forward_instats_vrf.sh
new file mode 100755
index 000000000..9f5b3e2e5
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ip6_forward_instats_vrf.sh
@@ -0,0 +1,172 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test ipv6 stats on the incoming if when forwarding with VRF
+
+ALL_TESTS="
+ ipv6_ping
+ ipv6_in_too_big_err
+ ipv6_in_hdr_err
+ ipv6_in_addr_err
+ ipv6_in_discard
+"
+
+NUM_NETIFS=4
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 2001:1:1::2/64
+ ip -6 route add vrf v$h1 2001:1:2::/64 via 2001:1:1::1
+}
+
+h1_destroy()
+{
+ ip -6 route del vrf v$h1 2001:1:2::/64 via 2001:1:1::1
+ simple_if_fini $h1 2001:1:1::2/64
+}
+
+router_create()
+{
+ vrf_create router
+ __simple_if_init $rtr1 router 2001:1:1::1/64
+ __simple_if_init $rtr2 router 2001:1:2::1/64
+ mtu_set $rtr2 1280
+}
+
+router_destroy()
+{
+ mtu_restore $rtr2
+ __simple_if_fini $rtr2 2001:1:2::1/64
+ __simple_if_fini $rtr1 2001:1:1::1/64
+ vrf_destroy router
+}
+
+h2_create()
+{
+ simple_if_init $h2 2001:1:2::2/64
+ ip -6 route add vrf v$h2 2001:1:1::/64 via 2001:1:2::1
+ mtu_set $h2 1280
+}
+
+h2_destroy()
+{
+ mtu_restore $h2
+ ip -6 route del vrf v$h2 2001:1:1::/64 via 2001:1:2::1
+ simple_if_fini $h2 2001:1:2::2/64
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ rtr1=${NETIFS[p2]}
+
+ rtr2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ vrf_prepare
+ h1_create
+ router_create
+ h2_create
+
+ forwarding_enable
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ forwarding_restore
+
+ h2_destroy
+ router_destroy
+ h1_destroy
+ vrf_cleanup
+}
+
+ipv6_in_too_big_err()
+{
+ RET=0
+
+ local t0=$(ipv6_stats_get $rtr1 Ip6InTooBigErrors)
+ local vrf_name=$(master_name_get $h1)
+
+ # Send too big packets
+ ip vrf exec $vrf_name \
+ $PING6 -s 1300 2001:1:2::2 -c 1 -w $PING_TIMEOUT &> /dev/null
+
+ local t1=$(ipv6_stats_get $rtr1 Ip6InTooBigErrors)
+ test "$((t1 - t0))" -ne 0
+ check_err $?
+ log_test "Ip6InTooBigErrors"
+}
+
+ipv6_in_hdr_err()
+{
+ RET=0
+
+ local t0=$(ipv6_stats_get $rtr1 Ip6InHdrErrors)
+ local vrf_name=$(master_name_get $h1)
+
+ # Send packets with hop limit 1, easiest with traceroute6 as some ping6
+ # doesn't allow hop limit to be specified
+ ip vrf exec $vrf_name \
+ $TROUTE6 2001:1:2::2 &> /dev/null
+
+ local t1=$(ipv6_stats_get $rtr1 Ip6InHdrErrors)
+ test "$((t1 - t0))" -ne 0
+ check_err $?
+ log_test "Ip6InHdrErrors"
+}
+
+ipv6_in_addr_err()
+{
+ RET=0
+
+ local t0=$(ipv6_stats_get $rtr1 Ip6InAddrErrors)
+ local vrf_name=$(master_name_get $h1)
+
+ # Disable forwarding temporary while sending the packet
+ sysctl -qw net.ipv6.conf.all.forwarding=0
+ ip vrf exec $vrf_name \
+ $PING6 2001:1:2::2 -c 1 -w $PING_TIMEOUT &> /dev/null
+ sysctl -qw net.ipv6.conf.all.forwarding=1
+
+ local t1=$(ipv6_stats_get $rtr1 Ip6InAddrErrors)
+ test "$((t1 - t0))" -ne 0
+ check_err $?
+ log_test "Ip6InAddrErrors"
+}
+
+ipv6_in_discard()
+{
+ RET=0
+
+ local t0=$(ipv6_stats_get $rtr1 Ip6InDiscards)
+ local vrf_name=$(master_name_get $h1)
+
+ # Add a policy to discard
+ ip xfrm policy add dst 2001:1:2::2/128 dir fwd action block
+ ip vrf exec $vrf_name \
+ $PING6 2001:1:2::2 -c 1 -w $PING_TIMEOUT &> /dev/null
+ ip xfrm policy del dst 2001:1:2::2/128 dir fwd
+
+ local t1=$(ipv6_stats_get $rtr1 Ip6InDiscards)
+ test "$((t1 - t0))" -ne 0
+ check_err $?
+ log_test "Ip6InDiscards"
+}
+ipv6_ping()
+{
+ RET=0
+
+ ping6_test $h1 2001:1:2::2
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ip6gre_inner_v4_multipath.sh b/tools/testing/selftests/net/forwarding/ip6gre_inner_v4_multipath.sh
new file mode 100755
index 000000000..a257979d3
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ip6gre_inner_v4_multipath.sh
@@ -0,0 +1,304 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test traffic distribution when there are multiple routes between an IPv6
+# GRE tunnel. The tunnel carries IPv4 traffic between multiple hosts.
+# Multiple routes are in the underlay network. With the default multipath
+# policy, SW2 will only look at the outer IP addresses, hence only a single
+# route would be used.
+#
+# +-------------------------+
+# | H1 |
+# | $h1 + |
+# | 192.0.3.{2-62}/24 | |
+# +-------------------|-----+
+# |
+# +-------------------|-------------------------+
+# | SW1 | |
+# | $ol1 + |
+# | 192.0.3.1/24 |
+# | |
+# | + g1 (gre) |
+# | loc=2001:db8:40::1 |
+# | rem=2001:db8:40::2 --. |
+# | tos=inherit | |
+# | v |
+# | + $ul1 |
+# | | 2001:db8:80::1/64 |
+# +-------------------------|-------------------+
+# |
+# +-------------------------|-------------------+
+# | SW2 | |
+# | $ul21 + |
+# | 2001:db8:80::2/64 |
+# | | |
+# ! ________________|_____ |
+# | / \ |
+# | | | |
+# | + $ul22.111 (vlan) + $ul22.222 (vlan) |
+# | | 2001:db8:81::1/64 | 2001:db8:82::1/64 |
+# | | | |
+# +--|----------------------|-------------------+
+# | |
+# +--|----------------------|-------------------+
+# | | | |
+# | + $ul32.111 (vlan) + $ul32.222 (vlan) |
+# | | 2001:db8:81::2/64 | 2001:db8:82::2/64 |
+# | | | |
+# | \______________________/ |
+# | | |
+# | | |
+# | $ul31 + |
+# | 2001:db8:83::2/64 | SW3 |
+# +-------------------------|-------------------+
+# |
+# +-------------------------|-------------------+
+# | + $ul4 |
+# | ^ 2001:db8:83::1/64 |
+# | + g2 (gre) | |
+# | loc=2001:db8:40::2 | |
+# | rem=2001:db8:40::1 --' |
+# | tos=inherit |
+# | |
+# | $ol4 + |
+# | 192.0.4.1/24 | SW4 |
+# +--------------------|------------------------+
+# |
+# +--------------------|---------+
+# | | |
+# | $h2 + |
+# | 192.0.4.{2-62}/24 H2 |
+# +------------------------------+
+
+ALL_TESTS="
+ ping_ipv4
+ multipath_ipv4
+"
+
+NUM_NETIFS=10
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.3.2/24
+ ip route add vrf v$h1 192.0.4.0/24 via 192.0.3.1
+}
+
+h1_destroy()
+{
+ ip route del vrf v$h1 192.0.4.0/24 via 192.0.3.1
+ simple_if_fini $h1 192.0.3.2/24
+}
+
+sw1_create()
+{
+ simple_if_init $ol1 192.0.3.1/24
+ __simple_if_init $ul1 v$ol1 2001:db8:80::1/64
+
+ tunnel_create g1 ip6gre 2001:db8:40::1 2001:db8:40::2 tos inherit dev v$ol1
+ __simple_if_init g1 v$ol1 2001:db8:40::1/128
+ ip -6 route add vrf v$ol1 2001:db8:40::2/128 via 2001:db8:80::2
+
+ ip route add vrf v$ol1 192.0.4.0/24 nexthop dev g1
+}
+
+sw1_destroy()
+{
+ ip route del vrf v$ol1 192.0.4.0/24
+
+ ip -6 route del vrf v$ol1 2001:db8:40::2/128
+ __simple_if_fini g1 2001:db8:40::1/128
+ tunnel_destroy g1
+
+ __simple_if_fini $ul1 2001:db8:80::1/64
+ simple_if_fini $ol1 192.0.3.1/24
+}
+
+sw2_create()
+{
+ simple_if_init $ul21 2001:db8:80::2/64
+ __simple_if_init $ul22 v$ul21
+ vlan_create $ul22 111 v$ul21 2001:db8:81::1/64
+ vlan_create $ul22 222 v$ul21 2001:db8:82::1/64
+
+ ip -6 route add vrf v$ul21 2001:db8:40::1/128 via 2001:db8:80::1
+ ip -6 route add vrf v$ul21 2001:db8:40::2/128 \
+ nexthop via 2001:db8:81::2 \
+ nexthop via 2001:db8:82::2
+}
+
+sw2_destroy()
+{
+ ip -6 route del vrf v$ul21 2001:db8:40::2/128
+ ip -6 route del vrf v$ul21 2001:db8:40::1/128
+
+ vlan_destroy $ul22 222
+ vlan_destroy $ul22 111
+ __simple_if_fini $ul22
+ simple_if_fini $ul21 2001:db8:80::2/64
+}
+
+sw3_create()
+{
+ simple_if_init $ul31 2001:db8:83::2/64
+ __simple_if_init $ul32 v$ul31
+ vlan_create $ul32 111 v$ul31 2001:db8:81::2/64
+ vlan_create $ul32 222 v$ul31 2001:db8:82::2/64
+
+ ip -6 route add vrf v$ul31 2001:db8:40::2/128 via 2001:db8:83::1
+ ip -6 route add vrf v$ul31 2001:db8:40::1/128 \
+ nexthop via 2001:db8:81::1 \
+ nexthop via 2001:db8:82::1
+
+ tc qdisc add dev $ul32 clsact
+ tc filter add dev $ul32 ingress pref 111 prot 802.1Q \
+ flower vlan_id 111 action pass
+ tc filter add dev $ul32 ingress pref 222 prot 802.1Q \
+ flower vlan_id 222 action pass
+}
+
+sw3_destroy()
+{
+ tc qdisc del dev $ul32 clsact
+
+ ip -6 route del vrf v$ul31 2001:db8:40::1/128
+ ip -6 route del vrf v$ul31 2001:db8:40::2/128
+
+ vlan_destroy $ul32 222
+ vlan_destroy $ul32 111
+ __simple_if_fini $ul32
+ simple_if_fini $ul31 2001:Db8:83::2/64
+}
+
+sw4_create()
+{
+ simple_if_init $ol4 192.0.4.1/24
+ __simple_if_init $ul4 v$ol4 2001:db8:83::1/64
+
+ tunnel_create g2 ip6gre 2001:db8:40::2 2001:db8:40::1 tos inherit dev v$ol4
+ __simple_if_init g2 v$ol4 2001:db8:40::2/128
+ ip -6 route add vrf v$ol4 2001:db8:40::1/128 via 2001:db8:83::2
+
+ ip route add vrf v$ol4 192.0.3.0/24 nexthop dev g2
+}
+
+sw4_destroy()
+{
+ ip route del vrf v$ol4 192.0.3.0/24
+
+ ip -6 route del vrf v$ol4 2001:db8:40::1/128
+ __simple_if_fini g2 2001:db8:40::2/128
+ tunnel_destroy g2
+
+ __simple_if_fini $ul4 2001:db8:83::1/64
+ simple_if_fini $ol4 192.0.4.1/24
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.4.2/24
+ ip route add vrf v$h2 192.0.3.0/24 via 192.0.4.1
+}
+
+h2_destroy()
+{
+ ip route del vrf v$h2 192.0.3.0/24 via 192.0.4.1
+ simple_if_fini $h2 192.0.4.2/24
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+
+ ol1=${NETIFS[p2]}
+ ul1=${NETIFS[p3]}
+
+ ul21=${NETIFS[p4]}
+ ul22=${NETIFS[p5]}
+
+ ul32=${NETIFS[p6]}
+ ul31=${NETIFS[p7]}
+
+ ul4=${NETIFS[p8]}
+ ol4=${NETIFS[p9]}
+
+ h2=${NETIFS[p10]}
+
+ vrf_prepare
+ h1_create
+ sw1_create
+ sw2_create
+ sw3_create
+ sw4_create
+ h2_create
+
+ forwarding_enable
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ forwarding_restore
+
+ h2_destroy
+ sw4_destroy
+ sw3_destroy
+ sw2_destroy
+ sw1_destroy
+ h1_destroy
+ vrf_cleanup
+}
+
+multipath4_test()
+{
+ local what=$1; shift
+ local weight1=$1; shift
+ local weight2=$1; shift
+
+ sysctl_set net.ipv6.fib_multipath_hash_policy 2
+ ip route replace vrf v$ul21 2001:db8:40::2/128 \
+ nexthop via 2001:db8:81::2 weight $weight1 \
+ nexthop via 2001:db8:82::2 weight $weight2
+
+ local t0_111=$(tc_rule_stats_get $ul32 111 ingress)
+ local t0_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+ ip vrf exec v$h1 \
+ $MZ $h1 -q -p 64 -A "192.0.3.2-192.0.3.62" -B "192.0.4.2-192.0.4.62" \
+ -d 1msec -c 50 -t udp "sp=1024,dp=1024"
+ sleep 1
+
+ local t1_111=$(tc_rule_stats_get $ul32 111 ingress)
+ local t1_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+ local d111=$((t1_111 - t0_111))
+ local d222=$((t1_222 - t0_222))
+ multipath_eval "$what" $weight1 $weight2 $d111 $d222
+
+ ip route replace vrf v$ul21 2001:db8:40::2/128 \
+ nexthop via 2001:db8:81::2 \
+ nexthop via 2001:db8:82::2
+ sysctl_restore net.ipv6.fib_multipath_hash_policy
+}
+
+ping_ipv4()
+{
+ ping_test $h1 192.0.4.2
+}
+
+multipath_ipv4()
+{
+ log_info "Running IPv4 over GRE over IPv6 multipath tests"
+ multipath4_test "ECMP" 1 1
+ multipath4_test "Weighted MP 2:1" 2 1
+ multipath4_test "Weighted MP 11:45" 11 45
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ip6gre_inner_v6_multipath.sh b/tools/testing/selftests/net/forwarding/ip6gre_inner_v6_multipath.sh
new file mode 100755
index 000000000..d208f5243
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ip6gre_inner_v6_multipath.sh
@@ -0,0 +1,305 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test traffic distribution when there are multiple routes between an IPv6
+# GRE tunnel. The tunnel carries IPv6 traffic between multiple hosts.
+# Multiple routes are in the underlay network. With the default multipath
+# policy, SW2 will only look at the outer IP addresses, hence only a single
+# route would be used.
+#
+# +-------------------------+
+# | H1 |
+# | $h1 + |
+# | 2001:db8:1::2/64 | |
+# +-------------------|-----+
+# |
+# +-------------------|-------------------------+
+# | SW1 | |
+# | $ol1 + |
+# | 2001:db8:1::1/64 |
+# | |
+# | + g1 (gre) |
+# | loc=2001:db8:40::1 |
+# | rem=2001:db8:40::2 --. |
+# | tos=inherit | |
+# | v |
+# | + $ul1 |
+# | | 2001:db8:80::1/64 |
+# +-------------------------|-------------------+
+# |
+# +-------------------------|-------------------+
+# | SW2 | |
+# | $ul21 + |
+# | 2001:db8:80::2/64 |
+# | | |
+# ! ________________|_____ |
+# | / \ |
+# | | | |
+# | + $ul22.111 (vlan) + $ul22.222 (vlan) |
+# | | 2001:db8:81::1/64 | 2001:db8:82::1/64 |
+# | | | |
+# +--|----------------------|-------------------+
+# | |
+# +--|----------------------|-------------------+
+# | | | |
+# | + $ul32.111 (vlan) + $ul32.222 (vlan) |
+# | | 2001:db8:81::2/64 | 2001:db8:82::2/64 |
+# | | | |
+# | \______________________/ |
+# | | |
+# | | |
+# | $ul31 + |
+# | 2001:db8:83::2/64 | SW3 |
+# +-------------------------|-------------------+
+# |
+# +-------------------------|-------------------+
+# | + $ul4 |
+# | ^ 2001:db8:83::1/64 |
+# | + g2 (gre) | |
+# | loc=2001:db8:40::2 | |
+# | rem=2001:db8:40::1 --' |
+# | tos=inherit |
+# | |
+# | $ol4 + |
+# | 2001:db8:2::1/64 | SW4 |
+# +--------------------|------------------------+
+# |
+# +--------------------|---------+
+# | | |
+# | $h2 + |
+# | 2001:db8:2::2/64 H2 |
+# +------------------------------+
+
+ALL_TESTS="
+ ping_ipv6
+ multipath_ipv6
+"
+
+NUM_NETIFS=10
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 2001:db8:1::2/64
+ ip -6 route add vrf v$h1 2001:db8:2::/64 via 2001:db8:1::1
+}
+
+h1_destroy()
+{
+ ip -6 route del vrf v$h1 2001:db8:2::/64 via 2001:db8:1::1
+ simple_if_fini $h1 2001:db8:1::2/64
+}
+
+sw1_create()
+{
+ simple_if_init $ol1 2001:db8:1::1/64
+ __simple_if_init $ul1 v$ol1 2001:db8:80::1/64
+
+ tunnel_create g1 ip6gre 2001:db8:40::1 2001:db8:40::2 tos inherit dev v$ol1
+ __simple_if_init g1 v$ol1 2001:db8:40::1/128
+ ip -6 route add vrf v$ol1 2001:db8:40::2/128 via 2001:db8:80::2
+
+ ip -6 route add vrf v$ol1 2001:db8:2::/64 dev g1
+}
+
+sw1_destroy()
+{
+ ip -6 route del vrf v$ol1 2001:db8:2::/64
+
+ ip -6 route del vrf v$ol1 2001:db8:40::2/128
+ __simple_if_fini g1 2001:db8:40::1/128
+ tunnel_destroy g1
+
+ __simple_if_fini $ul1 2001:db8:80::1/64
+ simple_if_fini $ol1 2001:db8:1::1/64
+}
+
+sw2_create()
+{
+ simple_if_init $ul21 2001:db8:80::2/64
+ __simple_if_init $ul22 v$ul21
+ vlan_create $ul22 111 v$ul21 2001:db8:81::1/64
+ vlan_create $ul22 222 v$ul21 2001:db8:82::1/64
+
+ ip -6 route add vrf v$ul21 2001:db8:40::1/128 via 2001:db8:80::1
+ ip -6 route add vrf v$ul21 2001:db8:40::2/128 \
+ nexthop via 2001:db8:81::2 \
+ nexthop via 2001:db8:82::2
+}
+
+sw2_destroy()
+{
+ ip -6 route del vrf v$ul21 2001:db8:40::2/128
+ ip -6 route del vrf v$ul21 2001:db8:40::1/128
+
+ vlan_destroy $ul22 222
+ vlan_destroy $ul22 111
+ __simple_if_fini $ul22
+ simple_if_fini $ul21 2001:db8:80::2/64
+}
+
+sw3_create()
+{
+ simple_if_init $ul31 2001:db8:83::2/64
+ __simple_if_init $ul32 v$ul31
+ vlan_create $ul32 111 v$ul31 2001:db8:81::2/64
+ vlan_create $ul32 222 v$ul31 2001:db8:82::2/64
+
+ ip -6 route add vrf v$ul31 2001:db8:40::2/128 via 2001:db8:83::1
+ ip -6 route add vrf v$ul31 2001:db8:40::1/128 \
+ nexthop via 2001:db8:81::1 \
+ nexthop via 2001:db8:82::1
+
+ tc qdisc add dev $ul32 clsact
+ tc filter add dev $ul32 ingress pref 111 prot 802.1Q \
+ flower vlan_id 111 action pass
+ tc filter add dev $ul32 ingress pref 222 prot 802.1Q \
+ flower vlan_id 222 action pass
+}
+
+sw3_destroy()
+{
+ tc qdisc del dev $ul32 clsact
+
+ ip -6 route del vrf v$ul31 2001:db8:40::1/128
+ ip -6 route del vrf v$ul31 2001:db8:40::2/128
+
+ vlan_destroy $ul32 222
+ vlan_destroy $ul32 111
+ __simple_if_fini $ul32
+ simple_if_fini $ul31 2001:Db8:83::2/64
+}
+
+sw4_create()
+{
+ simple_if_init $ol4 2001:db8:2::1/64
+ __simple_if_init $ul4 v$ol4 2001:db8:83::1/64
+
+ tunnel_create g2 ip6gre 2001:db8:40::2 2001:db8:40::1 tos inherit dev v$ol4
+ __simple_if_init g2 v$ol4 2001:db8:40::2/128
+ ip -6 route add vrf v$ol4 2001:db8:40::1/128 via 2001:db8:83::2
+
+ ip -6 route add vrf v$ol4 2001:db8:1::/64 dev g2
+}
+
+sw4_destroy()
+{
+ ip -6 route del vrf v$ol4 2001:db8:1::/64
+
+ ip -6 route del vrf v$ol4 2001:db8:40::1/128
+ __simple_if_fini g2 2001:db8:40::2/128
+ tunnel_destroy g2
+
+ __simple_if_fini $ul4 2001:db8:83::1/64
+ simple_if_fini $ol4 2001:db8:2::1/64
+}
+
+h2_create()
+{
+ simple_if_init $h2 2001:db8:2::2/64
+ ip -6 route add vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+ ip -6 route del vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1
+ simple_if_fini $h2 2001:db8:2::2/64
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+
+ ol1=${NETIFS[p2]}
+ ul1=${NETIFS[p3]}
+
+ ul21=${NETIFS[p4]}
+ ul22=${NETIFS[p5]}
+
+ ul32=${NETIFS[p6]}
+ ul31=${NETIFS[p7]}
+
+ ul4=${NETIFS[p8]}
+ ol4=${NETIFS[p9]}
+
+ h2=${NETIFS[p10]}
+
+ vrf_prepare
+ h1_create
+ sw1_create
+ sw2_create
+ sw3_create
+ sw4_create
+ h2_create
+
+ forwarding_enable
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ forwarding_restore
+
+ h2_destroy
+ sw4_destroy
+ sw3_destroy
+ sw2_destroy
+ sw1_destroy
+ h1_destroy
+ vrf_cleanup
+}
+
+multipath6_test()
+{
+ local what=$1; shift
+ local weight1=$1; shift
+ local weight2=$1; shift
+
+ sysctl_set net.ipv6.fib_multipath_hash_policy 2
+ ip route replace vrf v$ul21 2001:db8:40::2/128 \
+ nexthop via 2001:db8:81::2 weight $weight1 \
+ nexthop via 2001:db8:82::2 weight $weight2
+
+ local t0_111=$(tc_rule_stats_get $ul32 111 ingress)
+ local t0_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+ ip vrf exec v$h1 \
+ $MZ $h1 -6 -q -p 64 -A "2001:db8:1::2-2001:db8:1::1e" \
+ -B "2001:db8:2::2-2001:db8:2::1e" \
+ -d 1msec -c 50 -t udp "sp=1024,dp=1024"
+ sleep 1
+
+ local t1_111=$(tc_rule_stats_get $ul32 111 ingress)
+ local t1_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+ local d111=$((t1_111 - t0_111))
+ local d222=$((t1_222 - t0_222))
+ multipath_eval "$what" $weight1 $weight2 $d111 $d222
+
+ ip route replace vrf v$ul21 2001:db8:40::2/128 \
+ nexthop via 2001:db8:81::2 \
+ nexthop via 2001:db8:82::2
+ sysctl_restore net.ipv6.fib_multipath_hash_policy
+}
+
+ping_ipv6()
+{
+ ping_test $h1 2001:db8:2::2
+}
+
+multipath_ipv6()
+{
+ log_info "Running IPv6 over GRE over IPv6 multipath tests"
+ multipath6_test "ECMP" 1 1
+ multipath6_test "Weighted MP 2:1" 2 1
+ multipath6_test "Weighted MP 11:45" 11 45
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ipip_flat_gre.sh b/tools/testing/selftests/net/forwarding/ipip_flat_gre.sh
new file mode 100755
index 000000000..abb694397
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ipip_flat_gre.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test IP-in-IP GRE tunnel without key.
+# This test uses flat topology for IP tunneling tests. See ipip_lib.sh for more
+# details.
+
+ALL_TESTS="gre_flat4 gre_mtu_change"
+
+NUM_NETIFS=6
+source lib.sh
+source ipip_lib.sh
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ ol1=${NETIFS[p2]}
+
+ ul1=${NETIFS[p3]}
+ ul2=${NETIFS[p4]}
+
+ ol2=${NETIFS[p5]}
+ h2=${NETIFS[p6]}
+
+ forwarding_enable
+ vrf_prepare
+ h1_create
+ h2_create
+ sw1_flat_create gre $ol1 $ul1
+ sw2_flat_create gre $ol2 $ul2
+}
+
+gre_flat4()
+{
+ RET=0
+
+ ping_test $h1 192.0.2.18 " gre flat"
+}
+
+gre_mtu_change()
+{
+ test_mtu_change gre
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ sw2_flat_destroy $ol2 $ul2
+ sw1_flat_destroy $ol1 $ul1
+ h2_destroy
+ h1_destroy
+ vrf_cleanup
+ forwarding_restore
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ipip_flat_gre_key.sh b/tools/testing/selftests/net/forwarding/ipip_flat_gre_key.sh
new file mode 100755
index 000000000..c4f373337
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ipip_flat_gre_key.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test IP-in-IP GRE tunnel with key.
+# This test uses flat topology for IP tunneling tests. See ipip_lib.sh for more
+# details.
+
+ALL_TESTS="gre_flat4 gre_mtu_change"
+
+NUM_NETIFS=6
+source lib.sh
+source ipip_lib.sh
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ ol1=${NETIFS[p2]}
+
+ ul1=${NETIFS[p3]}
+ ul2=${NETIFS[p4]}
+
+ ol2=${NETIFS[p5]}
+ h2=${NETIFS[p6]}
+
+ forwarding_enable
+ vrf_prepare
+ h1_create
+ h2_create
+ sw1_flat_create gre $ol1 $ul1 key 233
+ sw2_flat_create gre $ol2 $ul2 key 233
+}
+
+gre_flat4()
+{
+ RET=0
+
+ ping_test $h1 192.0.2.18 " gre flat with key"
+}
+
+gre_mtu_change()
+{
+ test_mtu_change gre
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ sw2_flat_destroy $ol2 $ul2
+ sw1_flat_destroy $ol1 $ul1
+ h2_destroy
+ h1_destroy
+ vrf_cleanup
+ forwarding_restore
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ipip_flat_gre_keys.sh b/tools/testing/selftests/net/forwarding/ipip_flat_gre_keys.sh
new file mode 100755
index 000000000..a811130c0
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ipip_flat_gre_keys.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test IP-in-IP GRE tunnel with key.
+# This test uses flat topology for IP tunneling tests. See ipip_lib.sh for more
+# details.
+
+ALL_TESTS="gre_flat4 gre_mtu_change"
+
+NUM_NETIFS=6
+source lib.sh
+source ipip_lib.sh
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ ol1=${NETIFS[p2]}
+
+ ul1=${NETIFS[p3]}
+ ul2=${NETIFS[p4]}
+
+ ol2=${NETIFS[p5]}
+ h2=${NETIFS[p6]}
+
+ forwarding_enable
+ vrf_prepare
+ h1_create
+ h2_create
+ sw1_flat_create gre $ol1 $ul1 ikey 111 okey 222
+ sw2_flat_create gre $ol2 $ul2 ikey 222 okey 111
+}
+
+gre_flat4()
+{
+ RET=0
+
+ ping_test $h1 192.0.2.18 " gre flat with ikey/okey"
+}
+
+gre_mtu_change()
+{
+ test_mtu_change gre
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ sw2_flat_destroy $ol2 $ul2
+ sw1_flat_destroy $ol1 $ul1
+ h2_destroy
+ h1_destroy
+ vrf_cleanup
+ forwarding_restore
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ipip_hier_gre.sh b/tools/testing/selftests/net/forwarding/ipip_hier_gre.sh
new file mode 100755
index 000000000..05c5b3cf2
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ipip_hier_gre.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test IP-in-IP GRE tunnels without key.
+# This test uses hierarchical topology for IP tunneling tests. See
+# ipip_lib.sh for more details.
+
+ALL_TESTS="gre_hier4 gre_mtu_change"
+
+NUM_NETIFS=6
+source lib.sh
+source ipip_lib.sh
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ ol1=${NETIFS[p2]}
+
+ ul1=${NETIFS[p3]}
+ ul2=${NETIFS[p4]}
+
+ ol2=${NETIFS[p5]}
+ h2=${NETIFS[p6]}
+
+ forwarding_enable
+ vrf_prepare
+ h1_create
+ h2_create
+ sw1_hierarchical_create gre $ol1 $ul1
+ sw2_hierarchical_create gre $ol2 $ul2
+}
+
+gre_hier4()
+{
+ RET=0
+
+ ping_test $h1 192.0.2.18 " gre hierarchical"
+}
+
+gre_mtu_change()
+{
+ test_mtu_change gre
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ sw2_hierarchical_destroy $ol2 $ul2
+ sw1_hierarchical_destroy $ol1 $ul1
+ h2_destroy
+ h1_destroy
+ vrf_cleanup
+ forwarding_restore
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ipip_hier_gre_key.sh b/tools/testing/selftests/net/forwarding/ipip_hier_gre_key.sh
new file mode 100755
index 000000000..9b105dbca
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ipip_hier_gre_key.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test IP-in-IP GRE tunnels without key.
+# This test uses hierarchical topology for IP tunneling tests. See
+# ipip_lib.sh for more details.
+
+ALL_TESTS="gre_hier4 gre_mtu_change"
+
+NUM_NETIFS=6
+source lib.sh
+source ipip_lib.sh
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ ol1=${NETIFS[p2]}
+
+ ul1=${NETIFS[p3]}
+ ul2=${NETIFS[p4]}
+
+ ol2=${NETIFS[p5]}
+ h2=${NETIFS[p6]}
+
+ forwarding_enable
+ vrf_prepare
+ h1_create
+ h2_create
+ sw1_hierarchical_create gre $ol1 $ul1 key 22
+ sw2_hierarchical_create gre $ol2 $ul2 key 22
+}
+
+gre_hier4()
+{
+ RET=0
+
+ ping_test $h1 192.0.2.18 " gre hierarchical with key"
+}
+
+gre_mtu_change()
+{
+ test_mtu_change gre
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ sw2_hierarchical_destroy $ol2 $ul2
+ sw1_hierarchical_destroy $ol1 $ul1
+ h2_destroy
+ h1_destroy
+ vrf_cleanup
+ forwarding_restore
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ipip_hier_gre_keys.sh b/tools/testing/selftests/net/forwarding/ipip_hier_gre_keys.sh
new file mode 100755
index 000000000..e275d25bd
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ipip_hier_gre_keys.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test IP-in-IP GRE tunnels without key.
+# This test uses hierarchical topology for IP tunneling tests. See
+# ipip_lib.sh for more details.
+
+ALL_TESTS="gre_hier4 gre_mtu_change"
+
+NUM_NETIFS=6
+source lib.sh
+source ipip_lib.sh
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ ol1=${NETIFS[p2]}
+
+ ul1=${NETIFS[p3]}
+ ul2=${NETIFS[p4]}
+
+ ol2=${NETIFS[p5]}
+ h2=${NETIFS[p6]}
+
+ forwarding_enable
+ vrf_prepare
+ h1_create
+ h2_create
+ sw1_hierarchical_create gre $ol1 $ul1 ikey 111 okey 222
+ sw2_hierarchical_create gre $ol2 $ul2 ikey 222 okey 111
+}
+
+gre_hier4()
+{
+ RET=0
+
+ ping_test $h1 192.0.2.18 " gre hierarchical with ikey/okey"
+}
+
+gre_mtu_change()
+{
+ test_mtu_change gre
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ sw2_hierarchical_destroy $ol2 $ul2
+ sw1_hierarchical_destroy $ol1 $ul1
+ h2_destroy
+ h1_destroy
+ vrf_cleanup
+ forwarding_restore
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ipip_lib.sh b/tools/testing/selftests/net/forwarding/ipip_lib.sh
new file mode 100644
index 000000000..30f36a57b
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ipip_lib.sh
@@ -0,0 +1,349 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Handles creation and destruction of IP-in-IP or GRE tunnels over the given
+# topology. Supports both flat and hierarchical models.
+#
+# Flat Model:
+# Overlay and underlay share the same VRF.
+# SW1 uses default VRF so tunnel has no bound dev.
+# SW2 uses non-default VRF tunnel has a bound dev.
+# +-------------------------+
+# | H1 |
+# | $h1 + |
+# | 192.0.2.1/28 | |
+# +-------------------|-----+
+# |
+# +-------------------|-----+
+# | SW1 | |
+# | $ol1 + |
+# | 192.0.2.2/28 |
+# | |
+# | + g1a (gre) |
+# | loc=192.0.2.65 |
+# | rem=192.0.2.66 --. |
+# | tos=inherit | |
+# | .------------------' |
+# | | |
+# | v |
+# | + $ul1.111 (vlan) |
+# | | 192.0.2.129/28 |
+# | \ |
+# | \_______ |
+# | | |
+# |VRF default + $ul1 |
+# +------------|------------+
+# |
+# +------------|------------+
+# | SW2 + $ul2 |
+# | _______| |
+# | / |
+# | / |
+# | + $ul2.111 (vlan) |
+# | ^ 192.0.2.130/28 |
+# | | |
+# | | |
+# | '------------------. |
+# | + g2a (gre) | |
+# | loc=192.0.2.66 | |
+# | rem=192.0.2.65 --' |
+# | tos=inherit |
+# | |
+# | $ol2 + |
+# | 192.0.2.17/28 | |
+# | VRF v$ol2 | |
+# +-------------------|-----+
+# |
+# +-------------------|-----+
+# | H2 | |
+# | $h2 + |
+# | 192.0.2.18/28 |
+# +-------------------------+
+#
+# Hierarchical model:
+# The tunnel is bound to a device in a different VRF
+#
+# +---------------------------+
+# | H1 |
+# | $h1 + |
+# | 192.0.2.1/28 | |
+# +-------------------|-------+
+# |
+# +-------------------|-------+
+# | SW1 | |
+# | +-----------------|-----+ |
+# | | $ol1 + | |
+# | | 192.0.2.2/28 | |
+# | | | |
+# | | + g1a (gre) | |
+# | | rem=192.0.2.66 | |
+# | | tos=inherit | |
+# | | loc=192.0.2.65 | |
+# | | ^ | |
+# | | VRF v$ol1 | | |
+# | +-----------|-----------+ |
+# | | |
+# | +-----------|-----------+ |
+# | | VRF v$ul1 | | |
+# | | | | |
+# | | | | |
+# | | v | |
+# | | dummy1 + | |
+# | | 192.0.2.65 | |
+# | | .-------' | |
+# | | | | |
+# | | v | |
+# | | + $ul1.111 (vlan) | |
+# | | | 192.0.2.129/28 | |
+# | | \ | |
+# | | \_____ | |
+# | | | | |
+# | | + $ul1 | |
+# | +----------|------------+ |
+# +------------|--------------+
+# |
+# +------------|--------------+
+# | SW2 | |
+# | +----------|------------+ |
+# | | + $ul2 | |
+# | | _____| | |
+# | | / | |
+# | | / | |
+# | | | $ul2.111 (vlan) | |
+# | | + 192.0.2.130/28 | |
+# | | ^ | |
+# | | | | |
+# | | '-------. | |
+# | | dummy2 + | |
+# | | 192.0.2.66 | |
+# | | ^ | |
+# | | | | |
+# | | | | |
+# | | VRF v$ul2 | | |
+# | +-----------|-----------+ |
+# | | |
+# | +-----------|-----------+ |
+# | | VRF v$ol2 | | |
+# | | | | |
+# | | v | |
+# | | g2a (gre)+ | |
+# | | loc=192.0.2.66 | |
+# | | rem=192.0.2.65 | |
+# | | tos=inherit | |
+# | | | |
+# | | $ol2 + | |
+# | | 192.0.2.17/28 | | |
+# | +-----------------|-----+ |
+# +-------------------|-------+
+# |
+# +-------------------|-------+
+# | H2 | |
+# | $h2 + |
+# | 192.0.2.18/28 |
+# +---------------------------+
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+ ip route add vrf v$h1 192.0.2.16/28 via 192.0.2.2
+}
+
+h1_destroy()
+{
+ ip route del vrf v$h1 192.0.2.16/28 via 192.0.2.2
+ simple_if_fini $h1 192.0.2.1/28
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.18/28
+ ip route add vrf v$h2 192.0.2.0/28 via 192.0.2.17
+}
+
+h2_destroy()
+{
+ ip route del vrf v$h2 192.0.2.0/28 via 192.0.2.17
+ simple_if_fini $h2 192.0.2.18/28
+}
+
+sw1_flat_create()
+{
+ local type=$1; shift
+ local ol1=$1; shift
+ local ul1=$1; shift
+
+ ip link set dev $ol1 up
+ __addr_add_del $ol1 add "192.0.2.2/28"
+
+ ip link set dev $ul1 up
+ vlan_create $ul1 111 "" 192.0.2.129/28
+
+ tunnel_create g1a $type 192.0.2.65 192.0.2.66 tos inherit "$@"
+ ip link set dev g1a up
+ __addr_add_del g1a add "192.0.2.65/32"
+
+ ip route add 192.0.2.66/32 via 192.0.2.130
+
+ ip route add 192.0.2.16/28 nexthop dev g1a
+}
+
+sw1_flat_destroy()
+{
+ local ol1=$1; shift
+ local ul1=$1; shift
+
+ ip route del 192.0.2.16/28
+
+ ip route del 192.0.2.66/32 via 192.0.2.130
+ __simple_if_fini g1a 192.0.2.65/32
+ tunnel_destroy g1a
+
+ vlan_destroy $ul1 111
+ __simple_if_fini $ul1
+ __simple_if_fini $ol1 192.0.2.2/28
+}
+
+sw2_flat_create()
+{
+ local type=$1; shift
+ local ol2=$1; shift
+ local ul2=$1; shift
+
+ simple_if_init $ol2 192.0.2.17/28
+ __simple_if_init $ul2 v$ol2
+ vlan_create $ul2 111 v$ol2 192.0.2.130/28
+
+ tunnel_create g2a $type 192.0.2.66 192.0.2.65 tos inherit dev v$ol2 \
+ "$@"
+ __simple_if_init g2a v$ol2 192.0.2.66/32
+
+ ip route add vrf v$ol2 192.0.2.65/32 via 192.0.2.129
+ ip route add vrf v$ol2 192.0.2.0/28 nexthop dev g2a
+}
+
+sw2_flat_destroy()
+{
+ local ol2=$1; shift
+ local ul2=$1; shift
+
+ ip route del vrf v$ol2 192.0.2.0/28
+
+ ip route del vrf v$ol2 192.0.2.65/32 via 192.0.2.129
+ __simple_if_fini g2a 192.0.2.66/32
+ tunnel_destroy g2a
+
+ vlan_destroy $ul2 111
+ __simple_if_fini $ul2
+ simple_if_fini $ol2 192.0.2.17/28
+}
+
+sw1_hierarchical_create()
+{
+ local type=$1; shift
+ local ol1=$1; shift
+ local ul1=$1; shift
+
+ simple_if_init $ol1 192.0.2.2/28
+ simple_if_init $ul1
+ ip link add name dummy1 type dummy
+ __simple_if_init dummy1 v$ul1 192.0.2.65/32
+
+ vlan_create $ul1 111 v$ul1 192.0.2.129/28
+ tunnel_create g1a $type 192.0.2.65 192.0.2.66 tos inherit dev dummy1 \
+ "$@"
+ ip link set dev g1a master v$ol1
+
+ ip route add vrf v$ul1 192.0.2.66/32 via 192.0.2.130
+ ip route add vrf v$ol1 192.0.2.16/28 nexthop dev g1a
+}
+
+sw1_hierarchical_destroy()
+{
+ local ol1=$1; shift
+ local ul1=$1; shift
+
+ ip route del vrf v$ol1 192.0.2.16/28
+ ip route del vrf v$ul1 192.0.2.66/32
+
+ tunnel_destroy g1a
+ vlan_destroy $ul1 111
+
+ __simple_if_fini dummy1 192.0.2.65/32
+ ip link del dev dummy1
+
+ simple_if_fini $ul1
+ simple_if_fini $ol1 192.0.2.2/28
+}
+
+sw2_hierarchical_create()
+{
+ local type=$1; shift
+ local ol2=$1; shift
+ local ul2=$1; shift
+
+ simple_if_init $ol2 192.0.2.17/28
+ simple_if_init $ul2
+
+ ip link add name dummy2 type dummy
+ __simple_if_init dummy2 v$ul2 192.0.2.66/32
+
+ vlan_create $ul2 111 v$ul2 192.0.2.130/28
+ tunnel_create g2a $type 192.0.2.66 192.0.2.65 tos inherit dev dummy2 \
+ "$@"
+ ip link set dev g2a master v$ol2
+
+ ip route add vrf v$ul2 192.0.2.65/32 via 192.0.2.129
+ ip route add vrf v$ol2 192.0.2.0/28 nexthop dev g2a
+}
+
+sw2_hierarchical_destroy()
+{
+ local ol2=$1; shift
+ local ul2=$1; shift
+
+ ip route del vrf v$ol2 192.0.2.0/28
+ ip route del vrf v$ul2 192.0.2.65/32
+
+ tunnel_destroy g2a
+ vlan_destroy $ul2 111
+
+ __simple_if_fini dummy2 192.0.2.66/32
+ ip link del dev dummy2
+
+ simple_if_fini $ul2
+ simple_if_fini $ol2 192.0.2.17/28
+}
+
+topo_mtu_change()
+{
+ local mtu=$1
+
+ ip link set mtu $mtu dev $h1
+ ip link set mtu $mtu dev $ol1
+ ip link set mtu $mtu dev g1a
+ ip link set mtu $mtu dev $ul1
+ ip link set mtu $mtu dev $ul1.111
+ ip link set mtu $mtu dev $h2
+ ip link set mtu $mtu dev $ol2
+ ip link set mtu $mtu dev g2a
+ ip link set mtu $mtu dev $ul2
+ ip link set mtu $mtu dev $ul2.111
+}
+
+test_mtu_change()
+{
+ local encap=$1; shift
+
+ RET=0
+
+ ping_do $h1 192.0.2.18 "-s 1800 -w 3"
+ check_fail $? "ping $encap should not pass with size 1800"
+
+ RET=0
+
+ topo_mtu_change 2000
+ ping_do $h1 192.0.2.18 "-s 1800 -w 3"
+ check_err $?
+ log_test "ping $encap packet size 1800 after MTU change"
+}
diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
new file mode 100644
index 000000000..dfb41db7f
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -0,0 +1,1300 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+##############################################################################
+# Defines
+
+# Can be overridden by the configuration file.
+PING=${PING:=ping}
+PING6=${PING6:=ping6}
+MZ=${MZ:=mausezahn}
+ARPING=${ARPING:=arping}
+TEAMD=${TEAMD:=teamd}
+WAIT_TIME=${WAIT_TIME:=5}
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+PAUSE_ON_CLEANUP=${PAUSE_ON_CLEANUP:=no}
+NETIF_TYPE=${NETIF_TYPE:=veth}
+NETIF_CREATE=${NETIF_CREATE:=yes}
+MCD=${MCD:=smcrouted}
+MC_CLI=${MC_CLI:=smcroutectl}
+PING_TIMEOUT=${PING_TIMEOUT:=5}
+WAIT_TIMEOUT=${WAIT_TIMEOUT:=20}
+INTERFACE_TIMEOUT=${INTERFACE_TIMEOUT:=600}
+
+relative_path="${BASH_SOURCE%/*}"
+if [[ "$relative_path" == "${BASH_SOURCE}" ]]; then
+ relative_path="."
+fi
+
+if [[ -f $relative_path/forwarding.config ]]; then
+ source "$relative_path/forwarding.config"
+fi
+
+##############################################################################
+# Sanity checks
+
+check_tc_version()
+{
+ tc -j &> /dev/null
+ if [[ $? -ne 0 ]]; then
+ echo "SKIP: iproute2 too old; tc is missing JSON support"
+ exit 1
+ fi
+}
+
+check_tc_shblock_support()
+{
+ tc filter help 2>&1 | grep block &> /dev/null
+ if [[ $? -ne 0 ]]; then
+ echo "SKIP: iproute2 too old; tc is missing shared block support"
+ exit 1
+ fi
+}
+
+check_tc_chain_support()
+{
+ tc help 2>&1|grep chain &> /dev/null
+ if [[ $? -ne 0 ]]; then
+ echo "SKIP: iproute2 too old; tc is missing chain support"
+ exit 1
+ fi
+}
+
+check_tc_action_hw_stats_support()
+{
+ tc actions help 2>&1 | grep -q hw_stats
+ if [[ $? -ne 0 ]]; then
+ echo "SKIP: iproute2 too old; tc is missing action hw_stats support"
+ exit 1
+ fi
+}
+
+skip_on_veth()
+{
+ local kind=$(ip -j -d link show dev ${NETIFS[p1]} |
+ jq -r '.[].linkinfo.info_kind')
+
+ if [[ $kind == veth ]]; then
+ echo "SKIP: Test cannot be run with veth pairs"
+ exit $ksft_skip
+ fi
+}
+
+if [[ "$(id -u)" -ne 0 ]]; then
+ echo "SKIP: need root privileges"
+ exit 0
+fi
+
+if [[ "$CHECK_TC" = "yes" ]]; then
+ check_tc_version
+fi
+
+require_command()
+{
+ local cmd=$1; shift
+
+ if [[ ! -x "$(command -v "$cmd")" ]]; then
+ echo "SKIP: $cmd not installed"
+ exit 1
+ fi
+}
+
+require_command jq
+require_command $MZ
+
+if [[ ! -v NUM_NETIFS ]]; then
+ echo "SKIP: importer does not define \"NUM_NETIFS\""
+ exit 1
+fi
+
+##############################################################################
+# Command line options handling
+
+count=0
+
+while [[ $# -gt 0 ]]; do
+ if [[ "$count" -eq "0" ]]; then
+ unset NETIFS
+ declare -A NETIFS
+ fi
+ count=$((count + 1))
+ NETIFS[p$count]="$1"
+ shift
+done
+
+##############################################################################
+# Network interfaces configuration
+
+create_netif_veth()
+{
+ local i
+
+ for ((i = 1; i <= NUM_NETIFS; ++i)); do
+ local j=$((i+1))
+
+ if [ -z ${NETIFS[p$i]} ]; then
+ echo "SKIP: Cannot create interface. Name not specified"
+ exit $ksft_skip
+ fi
+
+ ip link show dev ${NETIFS[p$i]} &> /dev/null
+ if [[ $? -ne 0 ]]; then
+ ip link add ${NETIFS[p$i]} type veth \
+ peer name ${NETIFS[p$j]}
+ if [[ $? -ne 0 ]]; then
+ echo "Failed to create netif"
+ exit 1
+ fi
+ fi
+ i=$j
+ done
+}
+
+create_netif()
+{
+ case "$NETIF_TYPE" in
+ veth) create_netif_veth
+ ;;
+ *) echo "Can not create interfaces of type \'$NETIF_TYPE\'"
+ exit 1
+ ;;
+ esac
+}
+
+if [[ "$NETIF_CREATE" = "yes" ]]; then
+ create_netif
+fi
+
+for ((i = 1; i <= NUM_NETIFS; ++i)); do
+ ip link show dev ${NETIFS[p$i]} &> /dev/null
+ if [[ $? -ne 0 ]]; then
+ echo "SKIP: could not find all required interfaces"
+ exit 1
+ fi
+done
+
+##############################################################################
+# Helpers
+
+# Exit status to return at the end. Set in case one of the tests fails.
+EXIT_STATUS=0
+# Per-test return value. Clear at the beginning of each test.
+RET=0
+
+check_err()
+{
+ local err=$1
+ local msg=$2
+
+ if [[ $RET -eq 0 && $err -ne 0 ]]; then
+ RET=$err
+ retmsg=$msg
+ fi
+}
+
+check_fail()
+{
+ local err=$1
+ local msg=$2
+
+ if [[ $RET -eq 0 && $err -eq 0 ]]; then
+ RET=1
+ retmsg=$msg
+ fi
+}
+
+check_err_fail()
+{
+ local should_fail=$1; shift
+ local err=$1; shift
+ local what=$1; shift
+
+ if ((should_fail)); then
+ check_fail $err "$what succeeded, but should have failed"
+ else
+ check_err $err "$what failed"
+ fi
+}
+
+log_test()
+{
+ local test_name=$1
+ local opt_str=$2
+
+ if [[ $# -eq 2 ]]; then
+ opt_str="($opt_str)"
+ fi
+
+ if [[ $RET -ne 0 ]]; then
+ EXIT_STATUS=1
+ printf "TEST: %-60s [FAIL]\n" "$test_name $opt_str"
+ if [[ ! -z "$retmsg" ]]; then
+ printf "\t%s\n" "$retmsg"
+ fi
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo "Hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+ return 1
+ fi
+
+ printf "TEST: %-60s [ OK ]\n" "$test_name $opt_str"
+ return 0
+}
+
+log_info()
+{
+ local msg=$1
+
+ echo "INFO: $msg"
+}
+
+busywait()
+{
+ local timeout=$1; shift
+
+ local start_time="$(date -u +%s%3N)"
+ while true
+ do
+ local out
+ out=$("$@")
+ local ret=$?
+ if ((!ret)); then
+ echo -n "$out"
+ return 0
+ fi
+
+ local current_time="$(date -u +%s%3N)"
+ if ((current_time - start_time > timeout)); then
+ echo -n "$out"
+ return 1
+ fi
+ done
+}
+
+not()
+{
+ "$@"
+ [[ $? != 0 ]]
+}
+
+grep_bridge_fdb()
+{
+ local addr=$1; shift
+ local word
+ local flag
+
+ if [ "$1" == "self" ] || [ "$1" == "master" ]; then
+ word=$1; shift
+ if [ "$1" == "-v" ]; then
+ flag=$1; shift
+ fi
+ fi
+
+ $@ | grep $addr | grep $flag "$word"
+}
+
+wait_for_offload()
+{
+ "$@" | grep -q offload
+}
+
+until_counter_is()
+{
+ local expr=$1; shift
+ local current=$("$@")
+
+ echo $((current))
+ ((current $expr))
+}
+
+busywait_for_counter()
+{
+ local timeout=$1; shift
+ local delta=$1; shift
+
+ local base=$("$@")
+ busywait "$timeout" until_counter_is ">= $((base + delta))" "$@"
+}
+
+setup_wait_dev()
+{
+ local dev=$1; shift
+ local wait_time=${1:-$WAIT_TIME}; shift
+
+ setup_wait_dev_with_timeout "$dev" $INTERFACE_TIMEOUT $wait_time
+
+ if (($?)); then
+ check_err 1
+ log_test setup_wait_dev ": Interface $dev does not come up."
+ exit 1
+ fi
+}
+
+setup_wait_dev_with_timeout()
+{
+ local dev=$1; shift
+ local max_iterations=${1:-$WAIT_TIMEOUT}; shift
+ local wait_time=${1:-$WAIT_TIME}; shift
+ local i
+
+ for ((i = 1; i <= $max_iterations; ++i)); do
+ ip link show dev $dev up \
+ | grep 'state UP' &> /dev/null
+ if [[ $? -ne 0 ]]; then
+ sleep 1
+ else
+ sleep $wait_time
+ return 0
+ fi
+ done
+
+ return 1
+}
+
+setup_wait()
+{
+ local num_netifs=${1:-$NUM_NETIFS}
+ local i
+
+ for ((i = 1; i <= num_netifs; ++i)); do
+ setup_wait_dev ${NETIFS[p$i]} 0
+ done
+
+ # Make sure links are ready.
+ sleep $WAIT_TIME
+}
+
+cmd_jq()
+{
+ local cmd=$1
+ local jq_exp=$2
+ local jq_opts=$3
+ local ret
+ local output
+
+ output="$($cmd)"
+ # it the command fails, return error right away
+ ret=$?
+ if [[ $ret -ne 0 ]]; then
+ return $ret
+ fi
+ output=$(echo $output | jq -r $jq_opts "$jq_exp")
+ ret=$?
+ if [[ $ret -ne 0 ]]; then
+ return $ret
+ fi
+ echo $output
+ # return success only in case of non-empty output
+ [ ! -z "$output" ]
+}
+
+lldpad_app_wait_set()
+{
+ local dev=$1; shift
+
+ while lldptool -t -i $dev -V APP -c app | grep -Eq "pending|unknown"; do
+ echo "$dev: waiting for lldpad to push pending APP updates"
+ sleep 5
+ done
+}
+
+lldpad_app_wait_del()
+{
+ # Give lldpad a chance to push down the changes. If the device is downed
+ # too soon, the updates will be left pending. However, they will have
+ # been struck off the lldpad's DB already, so we won't be able to tell
+ # they are pending. Then on next test iteration this would cause
+ # weirdness as newly-added APP rules conflict with the old ones,
+ # sometimes getting stuck in an "unknown" state.
+ sleep 5
+}
+
+pre_cleanup()
+{
+ if [ "${PAUSE_ON_CLEANUP}" = "yes" ]; then
+ echo "Pausing before cleanup, hit any key to continue"
+ read
+ fi
+}
+
+vrf_prepare()
+{
+ ip -4 rule add pref 32765 table local
+ ip -4 rule del pref 0
+ ip -6 rule add pref 32765 table local
+ ip -6 rule del pref 0
+}
+
+vrf_cleanup()
+{
+ ip -6 rule add pref 0 table local
+ ip -6 rule del pref 32765
+ ip -4 rule add pref 0 table local
+ ip -4 rule del pref 32765
+}
+
+__last_tb_id=0
+declare -A __TB_IDS
+
+__vrf_td_id_assign()
+{
+ local vrf_name=$1
+
+ __last_tb_id=$((__last_tb_id + 1))
+ __TB_IDS[$vrf_name]=$__last_tb_id
+ return $__last_tb_id
+}
+
+__vrf_td_id_lookup()
+{
+ local vrf_name=$1
+
+ return ${__TB_IDS[$vrf_name]}
+}
+
+vrf_create()
+{
+ local vrf_name=$1
+ local tb_id
+
+ __vrf_td_id_assign $vrf_name
+ tb_id=$?
+
+ ip link add dev $vrf_name type vrf table $tb_id
+ ip -4 route add table $tb_id unreachable default metric 4278198272
+ ip -6 route add table $tb_id unreachable default metric 4278198272
+}
+
+vrf_destroy()
+{
+ local vrf_name=$1
+ local tb_id
+
+ __vrf_td_id_lookup $vrf_name
+ tb_id=$?
+
+ ip -6 route del table $tb_id unreachable default metric 4278198272
+ ip -4 route del table $tb_id unreachable default metric 4278198272
+ ip link del dev $vrf_name
+}
+
+__addr_add_del()
+{
+ local if_name=$1
+ local add_del=$2
+ local array
+
+ shift
+ shift
+ array=("${@}")
+
+ for addrstr in "${array[@]}"; do
+ ip address $add_del $addrstr dev $if_name
+ done
+}
+
+__simple_if_init()
+{
+ local if_name=$1; shift
+ local vrf_name=$1; shift
+ local addrs=("${@}")
+
+ ip link set dev $if_name master $vrf_name
+ ip link set dev $if_name up
+
+ __addr_add_del $if_name add "${addrs[@]}"
+}
+
+__simple_if_fini()
+{
+ local if_name=$1; shift
+ local addrs=("${@}")
+
+ __addr_add_del $if_name del "${addrs[@]}"
+
+ ip link set dev $if_name down
+ ip link set dev $if_name nomaster
+}
+
+simple_if_init()
+{
+ local if_name=$1
+ local vrf_name
+ local array
+
+ shift
+ vrf_name=v$if_name
+ array=("${@}")
+
+ vrf_create $vrf_name
+ ip link set dev $vrf_name up
+ __simple_if_init $if_name $vrf_name "${array[@]}"
+}
+
+simple_if_fini()
+{
+ local if_name=$1
+ local vrf_name
+ local array
+
+ shift
+ vrf_name=v$if_name
+ array=("${@}")
+
+ __simple_if_fini $if_name "${array[@]}"
+ vrf_destroy $vrf_name
+}
+
+tunnel_create()
+{
+ local name=$1; shift
+ local type=$1; shift
+ local local=$1; shift
+ local remote=$1; shift
+
+ ip link add name $name type $type \
+ local $local remote $remote "$@"
+ ip link set dev $name up
+}
+
+tunnel_destroy()
+{
+ local name=$1; shift
+
+ ip link del dev $name
+}
+
+vlan_create()
+{
+ local if_name=$1; shift
+ local vid=$1; shift
+ local vrf=$1; shift
+ local ips=("${@}")
+ local name=$if_name.$vid
+
+ ip link add name $name link $if_name type vlan id $vid
+ if [ "$vrf" != "" ]; then
+ ip link set dev $name master $vrf
+ fi
+ ip link set dev $name up
+ __addr_add_del $name add "${ips[@]}"
+}
+
+vlan_destroy()
+{
+ local if_name=$1; shift
+ local vid=$1; shift
+ local name=$if_name.$vid
+
+ ip link del dev $name
+}
+
+team_create()
+{
+ local if_name=$1; shift
+ local mode=$1; shift
+
+ require_command $TEAMD
+ $TEAMD -t $if_name -d -c '{"runner": {"name": "'$mode'"}}'
+ for slave in "$@"; do
+ ip link set dev $slave down
+ ip link set dev $slave master $if_name
+ ip link set dev $slave up
+ done
+ ip link set dev $if_name up
+}
+
+team_destroy()
+{
+ local if_name=$1; shift
+
+ $TEAMD -t $if_name -k
+}
+
+master_name_get()
+{
+ local if_name=$1
+
+ ip -j link show dev $if_name | jq -r '.[]["master"]'
+}
+
+link_stats_get()
+{
+ local if_name=$1; shift
+ local dir=$1; shift
+ local stat=$1; shift
+
+ ip -j -s link show dev $if_name \
+ | jq '.[]["stats64"]["'$dir'"]["'$stat'"]'
+}
+
+link_stats_tx_packets_get()
+{
+ link_stats_get $1 tx packets
+}
+
+link_stats_rx_errors_get()
+{
+ link_stats_get $1 rx errors
+}
+
+tc_rule_stats_get()
+{
+ local dev=$1; shift
+ local pref=$1; shift
+ local dir=$1; shift
+ local selector=${1:-.packets}; shift
+
+ tc -j -s filter show dev $dev ${dir:-ingress} pref $pref \
+ | jq ".[1].options.actions[].stats$selector"
+}
+
+tc_rule_handle_stats_get()
+{
+ local id=$1; shift
+ local handle=$1; shift
+ local selector=${1:-.packets}; shift
+
+ tc -j -s filter show $id \
+ | jq ".[] | select(.options.handle == $handle) | \
+ .options.actions[0].stats$selector"
+}
+
+ethtool_stats_get()
+{
+ local dev=$1; shift
+ local stat=$1; shift
+
+ ethtool -S $dev | grep "^ *$stat:" | head -n 1 | cut -d: -f2
+}
+
+qdisc_stats_get()
+{
+ local dev=$1; shift
+ local handle=$1; shift
+ local selector=$1; shift
+
+ tc -j -s qdisc show dev "$dev" \
+ | jq '.[] | select(.handle == "'"$handle"'") | '"$selector"
+}
+
+qdisc_parent_stats_get()
+{
+ local dev=$1; shift
+ local parent=$1; shift
+ local selector=$1; shift
+
+ tc -j -s qdisc show dev "$dev" invisible \
+ | jq '.[] | select(.parent == "'"$parent"'") | '"$selector"
+}
+
+ipv6_stats_get()
+{
+ local dev=$1; shift
+ local stat=$1; shift
+
+ cat /proc/net/dev_snmp6/$dev | grep "^$stat" | cut -f2
+}
+
+humanize()
+{
+ local speed=$1; shift
+
+ for unit in bps Kbps Mbps Gbps; do
+ if (($(echo "$speed < 1024" | bc))); then
+ break
+ fi
+
+ speed=$(echo "scale=1; $speed / 1024" | bc)
+ done
+
+ echo "$speed${unit}"
+}
+
+rate()
+{
+ local t0=$1; shift
+ local t1=$1; shift
+ local interval=$1; shift
+
+ echo $((8 * (t1 - t0) / interval))
+}
+
+mac_get()
+{
+ local if_name=$1
+
+ ip -j link show dev $if_name | jq -r '.[]["address"]'
+}
+
+bridge_ageing_time_get()
+{
+ local bridge=$1
+ local ageing_time
+
+ # Need to divide by 100 to convert to seconds.
+ ageing_time=$(ip -j -d link show dev $bridge \
+ | jq '.[]["linkinfo"]["info_data"]["ageing_time"]')
+ echo $((ageing_time / 100))
+}
+
+declare -A SYSCTL_ORIG
+sysctl_set()
+{
+ local key=$1; shift
+ local value=$1; shift
+
+ SYSCTL_ORIG[$key]=$(sysctl -n $key)
+ sysctl -qw $key="$value"
+}
+
+sysctl_restore()
+{
+ local key=$1; shift
+
+ sysctl -qw $key="${SYSCTL_ORIG[$key]}"
+}
+
+forwarding_enable()
+{
+ sysctl_set net.ipv4.conf.all.forwarding 1
+ sysctl_set net.ipv6.conf.all.forwarding 1
+}
+
+forwarding_restore()
+{
+ sysctl_restore net.ipv6.conf.all.forwarding
+ sysctl_restore net.ipv4.conf.all.forwarding
+}
+
+declare -A MTU_ORIG
+mtu_set()
+{
+ local dev=$1; shift
+ local mtu=$1; shift
+
+ MTU_ORIG["$dev"]=$(ip -j link show dev $dev | jq -e '.[].mtu')
+ ip link set dev $dev mtu $mtu
+}
+
+mtu_restore()
+{
+ local dev=$1; shift
+
+ ip link set dev $dev mtu ${MTU_ORIG["$dev"]}
+}
+
+tc_offload_check()
+{
+ local num_netifs=${1:-$NUM_NETIFS}
+
+ for ((i = 1; i <= num_netifs; ++i)); do
+ ethtool -k ${NETIFS[p$i]} \
+ | grep "hw-tc-offload: on" &> /dev/null
+ if [[ $? -ne 0 ]]; then
+ return 1
+ fi
+ done
+
+ return 0
+}
+
+trap_install()
+{
+ local dev=$1; shift
+ local direction=$1; shift
+
+ # Some devices may not support or need in-hardware trapping of traffic
+ # (e.g. the veth pairs that this library creates for non-existent
+ # loopbacks). Use continue instead, so that there is a filter in there
+ # (some tests check counters), and so that other filters are still
+ # processed.
+ tc filter add dev $dev $direction pref 1 \
+ flower skip_sw action trap 2>/dev/null \
+ || tc filter add dev $dev $direction pref 1 \
+ flower action continue
+}
+
+trap_uninstall()
+{
+ local dev=$1; shift
+ local direction=$1; shift
+
+ tc filter del dev $dev $direction pref 1 flower
+}
+
+slow_path_trap_install()
+{
+ # For slow-path testing, we need to install a trap to get to
+ # slow path the packets that would otherwise be switched in HW.
+ if [ "${tcflags/skip_hw}" != "$tcflags" ]; then
+ trap_install "$@"
+ fi
+}
+
+slow_path_trap_uninstall()
+{
+ if [ "${tcflags/skip_hw}" != "$tcflags" ]; then
+ trap_uninstall "$@"
+ fi
+}
+
+__icmp_capture_add_del()
+{
+ local add_del=$1; shift
+ local pref=$1; shift
+ local vsuf=$1; shift
+ local tundev=$1; shift
+ local filter=$1; shift
+
+ tc filter $add_del dev "$tundev" ingress \
+ proto ip$vsuf pref $pref \
+ flower ip_proto icmp$vsuf $filter \
+ action pass
+}
+
+icmp_capture_install()
+{
+ __icmp_capture_add_del add 100 "" "$@"
+}
+
+icmp_capture_uninstall()
+{
+ __icmp_capture_add_del del 100 "" "$@"
+}
+
+icmp6_capture_install()
+{
+ __icmp_capture_add_del add 100 v6 "$@"
+}
+
+icmp6_capture_uninstall()
+{
+ __icmp_capture_add_del del 100 v6 "$@"
+}
+
+__vlan_capture_add_del()
+{
+ local add_del=$1; shift
+ local pref=$1; shift
+ local dev=$1; shift
+ local filter=$1; shift
+
+ tc filter $add_del dev "$dev" ingress \
+ proto 802.1q pref $pref \
+ flower $filter \
+ action pass
+}
+
+vlan_capture_install()
+{
+ __vlan_capture_add_del add 100 "$@"
+}
+
+vlan_capture_uninstall()
+{
+ __vlan_capture_add_del del 100 "$@"
+}
+
+__dscp_capture_add_del()
+{
+ local add_del=$1; shift
+ local dev=$1; shift
+ local base=$1; shift
+ local dscp;
+
+ for prio in {0..7}; do
+ dscp=$((base + prio))
+ __icmp_capture_add_del $add_del $((dscp + 100)) "" $dev \
+ "skip_hw ip_tos $((dscp << 2))"
+ done
+}
+
+dscp_capture_install()
+{
+ local dev=$1; shift
+ local base=$1; shift
+
+ __dscp_capture_add_del add $dev $base
+}
+
+dscp_capture_uninstall()
+{
+ local dev=$1; shift
+ local base=$1; shift
+
+ __dscp_capture_add_del del $dev $base
+}
+
+dscp_fetch_stats()
+{
+ local dev=$1; shift
+ local base=$1; shift
+
+ for prio in {0..7}; do
+ local dscp=$((base + prio))
+ local t=$(tc_rule_stats_get $dev $((dscp + 100)))
+ echo "[$dscp]=$t "
+ done
+}
+
+matchall_sink_create()
+{
+ local dev=$1; shift
+
+ tc qdisc add dev $dev clsact
+ tc filter add dev $dev ingress \
+ pref 10000 \
+ matchall \
+ action drop
+}
+
+tests_run()
+{
+ local current_test
+
+ for current_test in ${TESTS:-$ALL_TESTS}; do
+ $current_test
+ done
+}
+
+multipath_eval()
+{
+ local desc="$1"
+ local weight_rp12=$2
+ local weight_rp13=$3
+ local packets_rp12=$4
+ local packets_rp13=$5
+ local weights_ratio packets_ratio diff
+
+ RET=0
+
+ if [[ "$weight_rp12" -gt "$weight_rp13" ]]; then
+ weights_ratio=$(echo "scale=2; $weight_rp12 / $weight_rp13" \
+ | bc -l)
+ else
+ weights_ratio=$(echo "scale=2; $weight_rp13 / $weight_rp12" \
+ | bc -l)
+ fi
+
+ if [[ "$packets_rp12" -eq "0" || "$packets_rp13" -eq "0" ]]; then
+ check_err 1 "Packet difference is 0"
+ log_test "Multipath"
+ log_info "Expected ratio $weights_ratio"
+ return
+ fi
+
+ if [[ "$weight_rp12" -gt "$weight_rp13" ]]; then
+ packets_ratio=$(echo "scale=2; $packets_rp12 / $packets_rp13" \
+ | bc -l)
+ else
+ packets_ratio=$(echo "scale=2; $packets_rp13 / $packets_rp12" \
+ | bc -l)
+ fi
+
+ diff=$(echo $weights_ratio - $packets_ratio | bc -l)
+ diff=${diff#-}
+
+ test "$(echo "$diff / $weights_ratio > 0.15" | bc -l)" -eq 0
+ check_err $? "Too large discrepancy between expected and measured ratios"
+ log_test "$desc"
+ log_info "Expected ratio $weights_ratio Measured ratio $packets_ratio"
+}
+
+in_ns()
+{
+ local name=$1; shift
+
+ ip netns exec $name bash <<-EOF
+ NUM_NETIFS=0
+ source lib.sh
+ $(for a in "$@"; do printf "%q${IFS:0:1}" "$a"; done)
+ EOF
+}
+
+##############################################################################
+# Tests
+
+ping_do()
+{
+ local if_name=$1
+ local dip=$2
+ local args=$3
+ local vrf_name
+
+ vrf_name=$(master_name_get $if_name)
+ ip vrf exec $vrf_name \
+ $PING $args $dip -c 10 -i 0.1 -w $PING_TIMEOUT &> /dev/null
+}
+
+ping_test()
+{
+ RET=0
+
+ ping_do $1 $2
+ check_err $?
+ log_test "ping$3"
+}
+
+ping6_do()
+{
+ local if_name=$1
+ local dip=$2
+ local args=$3
+ local vrf_name
+
+ vrf_name=$(master_name_get $if_name)
+ ip vrf exec $vrf_name \
+ $PING6 $args $dip -c 10 -i 0.1 -w $PING_TIMEOUT &> /dev/null
+}
+
+ping6_test()
+{
+ RET=0
+
+ ping6_do $1 $2
+ check_err $?
+ log_test "ping6$3"
+}
+
+learning_test()
+{
+ local bridge=$1
+ local br_port1=$2 # Connected to `host1_if`.
+ local host1_if=$3
+ local host2_if=$4
+ local mac=de:ad:be:ef:13:37
+ local ageing_time
+
+ RET=0
+
+ bridge -j fdb show br $bridge brport $br_port1 \
+ | jq -e ".[] | select(.mac == \"$mac\")" &> /dev/null
+ check_fail $? "Found FDB record when should not"
+
+ # Disable unknown unicast flooding on `br_port1` to make sure
+ # packets are only forwarded through the port after a matching
+ # FDB entry was installed.
+ bridge link set dev $br_port1 flood off
+
+ ip link set $host1_if promisc on
+ tc qdisc add dev $host1_if ingress
+ tc filter add dev $host1_if ingress protocol ip pref 1 handle 101 \
+ flower dst_mac $mac action drop
+
+ $MZ $host2_if -c 1 -p 64 -b $mac -t ip -q
+ sleep 1
+
+ tc -j -s filter show dev $host1_if ingress \
+ | jq -e ".[] | select(.options.handle == 101) \
+ | select(.options.actions[0].stats.packets == 1)" &> /dev/null
+ check_fail $? "Packet reached first host when should not"
+
+ $MZ $host1_if -c 1 -p 64 -a $mac -t ip -q
+ sleep 1
+
+ bridge -j fdb show br $bridge brport $br_port1 \
+ | jq -e ".[] | select(.mac == \"$mac\")" &> /dev/null
+ check_err $? "Did not find FDB record when should"
+
+ $MZ $host2_if -c 1 -p 64 -b $mac -t ip -q
+ sleep 1
+
+ tc -j -s filter show dev $host1_if ingress \
+ | jq -e ".[] | select(.options.handle == 101) \
+ | select(.options.actions[0].stats.packets == 1)" &> /dev/null
+ check_err $? "Packet did not reach second host when should"
+
+ # Wait for 10 seconds after the ageing time to make sure FDB
+ # record was aged-out.
+ ageing_time=$(bridge_ageing_time_get $bridge)
+ sleep $((ageing_time + 10))
+
+ bridge -j fdb show br $bridge brport $br_port1 \
+ | jq -e ".[] | select(.mac == \"$mac\")" &> /dev/null
+ check_fail $? "Found FDB record when should not"
+
+ bridge link set dev $br_port1 learning off
+
+ $MZ $host1_if -c 1 -p 64 -a $mac -t ip -q
+ sleep 1
+
+ bridge -j fdb show br $bridge brport $br_port1 \
+ | jq -e ".[] | select(.mac == \"$mac\")" &> /dev/null
+ check_fail $? "Found FDB record when should not"
+
+ bridge link set dev $br_port1 learning on
+
+ tc filter del dev $host1_if ingress protocol ip pref 1 handle 101 flower
+ tc qdisc del dev $host1_if ingress
+ ip link set $host1_if promisc off
+
+ bridge link set dev $br_port1 flood on
+
+ log_test "FDB learning"
+}
+
+flood_test_do()
+{
+ local should_flood=$1
+ local mac=$2
+ local ip=$3
+ local host1_if=$4
+ local host2_if=$5
+ local err=0
+
+ # Add an ACL on `host2_if` which will tell us whether the packet
+ # was flooded to it or not.
+ ip link set $host2_if promisc on
+ tc qdisc add dev $host2_if ingress
+ tc filter add dev $host2_if ingress protocol ip pref 1 handle 101 \
+ flower dst_mac $mac action drop
+
+ $MZ $host1_if -c 1 -p 64 -b $mac -B $ip -t ip -q
+ sleep 1
+
+ tc -j -s filter show dev $host2_if ingress \
+ | jq -e ".[] | select(.options.handle == 101) \
+ | select(.options.actions[0].stats.packets == 1)" &> /dev/null
+ if [[ $? -ne 0 && $should_flood == "true" || \
+ $? -eq 0 && $should_flood == "false" ]]; then
+ err=1
+ fi
+
+ tc filter del dev $host2_if ingress protocol ip pref 1 handle 101 flower
+ tc qdisc del dev $host2_if ingress
+ ip link set $host2_if promisc off
+
+ return $err
+}
+
+flood_unicast_test()
+{
+ local br_port=$1
+ local host1_if=$2
+ local host2_if=$3
+ local mac=de:ad:be:ef:13:37
+ local ip=192.0.2.100
+
+ RET=0
+
+ bridge link set dev $br_port flood off
+
+ flood_test_do false $mac $ip $host1_if $host2_if
+ check_err $? "Packet flooded when should not"
+
+ bridge link set dev $br_port flood on
+
+ flood_test_do true $mac $ip $host1_if $host2_if
+ check_err $? "Packet was not flooded when should"
+
+ log_test "Unknown unicast flood"
+}
+
+flood_multicast_test()
+{
+ local br_port=$1
+ local host1_if=$2
+ local host2_if=$3
+ local mac=01:00:5e:00:00:01
+ local ip=239.0.0.1
+
+ RET=0
+
+ bridge link set dev $br_port mcast_flood off
+
+ flood_test_do false $mac $ip $host1_if $host2_if
+ check_err $? "Packet flooded when should not"
+
+ bridge link set dev $br_port mcast_flood on
+
+ flood_test_do true $mac $ip $host1_if $host2_if
+ check_err $? "Packet was not flooded when should"
+
+ log_test "Unregistered multicast flood"
+}
+
+flood_test()
+{
+ # `br_port` is connected to `host2_if`
+ local br_port=$1
+ local host1_if=$2
+ local host2_if=$3
+
+ flood_unicast_test $br_port $host1_if $host2_if
+ flood_multicast_test $br_port $host1_if $host2_if
+}
+
+__start_traffic()
+{
+ local proto=$1; shift
+ local h_in=$1; shift # Where the traffic egresses the host
+ local sip=$1; shift
+ local dip=$1; shift
+ local dmac=$1; shift
+
+ $MZ $h_in -p 8000 -A $sip -B $dip -c 0 \
+ -a own -b $dmac -t "$proto" -q "$@" &
+ sleep 1
+}
+
+start_traffic()
+{
+ __start_traffic udp "$@"
+}
+
+start_tcp_traffic()
+{
+ __start_traffic tcp "$@"
+}
+
+stop_traffic()
+{
+ # Suppress noise from killing mausezahn.
+ { kill %% && wait %%; } 2>/dev/null
+}
+
+tcpdump_start()
+{
+ local if_name=$1; shift
+ local ns=$1; shift
+
+ capfile=$(mktemp)
+ capout=$(mktemp)
+
+ if [ -z $ns ]; then
+ ns_cmd=""
+ else
+ ns_cmd="ip netns exec ${ns}"
+ fi
+
+ if [ -z $SUDO_USER ] ; then
+ capuser=""
+ else
+ capuser="-Z $SUDO_USER"
+ fi
+
+ $ns_cmd tcpdump -e -n -Q in -i $if_name \
+ -s 65535 -B 32768 $capuser -w $capfile > "$capout" 2>&1 &
+ cappid=$!
+
+ sleep 1
+}
+
+tcpdump_stop()
+{
+ $ns_cmd kill $cappid
+ sleep 1
+}
+
+tcpdump_cleanup()
+{
+ rm $capfile $capout
+}
+
+tcpdump_show()
+{
+ tcpdump -e -n -r $capfile 2>&1
+}
diff --git a/tools/testing/selftests/net/forwarding/loopback.sh b/tools/testing/selftests/net/forwarding/loopback.sh
new file mode 100755
index 000000000..8f4057310
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/loopback.sh
@@ -0,0 +1,102 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+ALL_TESTS="loopback_test"
+NUM_NETIFS=2
+source tc_common.sh
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/24
+ tc qdisc add dev $h1 clsact
+}
+
+h1_destroy()
+{
+ tc qdisc del dev $h1 clsact
+ simple_if_fini $h1 192.0.2.1/24
+}
+
+h2_create()
+{
+ simple_if_init $h2
+}
+
+h2_destroy()
+{
+ simple_if_fini $h2
+}
+
+loopback_test()
+{
+ RET=0
+
+ tc filter add dev $h1 ingress protocol arp pref 1 handle 101 flower \
+ skip_hw arp_op reply arp_tip 192.0.2.1 action drop
+
+ $MZ $h1 -c 1 -t arp -q
+
+ tc_check_packets "dev $h1 ingress" 101 1
+ check_fail $? "Matched on a filter without loopback setup"
+
+ ethtool -K $h1 loopback on
+ check_err $? "Failed to enable loopback"
+
+ setup_wait_dev $h1
+
+ $MZ $h1 -c 1 -t arp -q
+
+ tc_check_packets "dev $h1 ingress" 101 1
+ check_err $? "Did not match on filter with loopback"
+
+ ethtool -K $h1 loopback off
+ check_err $? "Failed to disable loopback"
+
+ $MZ $h1 -c 1 -t arp -q
+
+ tc_check_packets "dev $h1 ingress" 101 2
+ check_fail $? "Matched on a filter after loopback was removed"
+
+ tc filter del dev $h1 ingress protocol arp pref 1 handle 101 flower
+
+ log_test "loopback"
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ h2=${NETIFS[p2]}
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+
+ if ethtool -k $h1 | grep loopback | grep -q fixed; then
+ log_test "SKIP: dev $h1 does not support loopback feature"
+ exit $ksft_skip
+ fi
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre.sh b/tools/testing/selftests/net/forwarding/mirror_gre.sh
new file mode 100755
index 000000000..026644360
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre.sh
@@ -0,0 +1,160 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# Test for "tc action mirred egress mirror" when the device to mirror to is a
+# gretap or ip6gretap netdevice. Expect that the packets come out encapsulated,
+# and another gretap / ip6gretap netdevice is then capable of decapsulating the
+# traffic. Test that the payload is what is expected (ICMP ping request or
+# reply, depending on test).
+
+ALL_TESTS="
+ test_gretap
+ test_ip6gretap
+ test_gretap_mac
+ test_ip6gretap_mac
+ test_two_spans
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ swp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ vrf_prepare
+ mirror_gre_topo_create
+
+ ip address add dev $swp3 192.0.2.129/28
+ ip address add dev $h3 192.0.2.130/28
+
+ ip address add dev $swp3 2001:db8:2::1/64
+ ip address add dev $h3 2001:db8:2::2/64
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ ip address del dev $h3 2001:db8:2::2/64
+ ip address del dev $swp3 2001:db8:2::1/64
+
+ ip address del dev $h3 192.0.2.130/28
+ ip address del dev $swp3 192.0.2.129/28
+
+ mirror_gre_topo_destroy
+ vrf_cleanup
+}
+
+test_span_gre_mac()
+{
+ local tundev=$1; shift
+ local direction=$1; shift
+ local what=$1; shift
+
+ case "$direction" in
+ ingress) local src_mac=$(mac_get $h1); local dst_mac=$(mac_get $h2)
+ ;;
+ egress) local src_mac=$(mac_get $h2); local dst_mac=$(mac_get $h1)
+ ;;
+ esac
+
+ RET=0
+
+ mirror_install $swp1 $direction $tundev "matchall $tcflags"
+ icmp_capture_install h3-${tundev} "src_mac $src_mac dst_mac $dst_mac"
+
+ mirror_test v$h1 192.0.2.1 192.0.2.2 h3-${tundev} 100 10
+
+ icmp_capture_uninstall h3-${tundev}
+ mirror_uninstall $swp1 $direction
+
+ log_test "$direction $what: envelope MAC ($tcflags)"
+}
+
+test_two_spans()
+{
+ RET=0
+
+ mirror_install $swp1 ingress gt4 "matchall $tcflags"
+ mirror_install $swp1 egress gt6 "matchall $tcflags"
+ quick_test_span_gre_dir gt4 ingress
+ quick_test_span_gre_dir gt6 egress
+
+ mirror_uninstall $swp1 ingress
+ fail_test_span_gre_dir gt4 ingress
+ quick_test_span_gre_dir gt6 egress
+
+ mirror_install $swp1 ingress gt4 "matchall $tcflags"
+ mirror_uninstall $swp1 egress
+ quick_test_span_gre_dir gt4 ingress
+ fail_test_span_gre_dir gt6 egress
+
+ mirror_uninstall $swp1 ingress
+ log_test "two simultaneously configured mirrors ($tcflags)"
+}
+
+test_gretap()
+{
+ full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap"
+ full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap"
+}
+
+test_ip6gretap()
+{
+ full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap"
+ full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap"
+}
+
+test_gretap_mac()
+{
+ test_span_gre_mac gt4 ingress "mirror to gretap"
+ test_span_gre_mac gt4 egress "mirror to gretap"
+}
+
+test_ip6gretap_mac()
+{
+ test_span_gre_mac gt6 ingress "mirror to ip6gretap"
+ test_span_gre_mac gt6 egress "mirror to ip6gretap"
+}
+
+test_all()
+{
+ slow_path_trap_install $swp1 ingress
+ slow_path_trap_install $swp1 egress
+
+ tests_run
+
+ slow_path_trap_uninstall $swp1 egress
+ slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+ echo "WARN: Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_bound.sh b/tools/testing/selftests/net/forwarding/mirror_gre_bound.sh
new file mode 100755
index 000000000..360ca133b
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_bound.sh
@@ -0,0 +1,226 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +---------------------+ +---------------------+
+# | H1 | | H2 |
+# | + $h1 | | $h2 + |
+# | | 192.0.2.1/28 | | 192.0.2.2/28 | |
+# +-----|---------------+ +---------------|-----+
+# | |
+# +-----|-------------------------------------------------------------|-----+
+# | SW o--> mirror | |
+# | +---|-------------------------------------------------------------|---+ |
+# | | + $swp1 BR $swp2 + | |
+# | +---------------------------------------------------------------------+ |
+# | |
+# | +---------------------------------------------------------------------+ |
+# | | OL + gt6 (ip6gretap) + gt4 (gretap) | |
+# | | : loc=2001:db8:2::1 : loc=192.0.2.129 | |
+# | | : rem=2001:db8:2::2 : rem=192.0.2.130 | |
+# | | : ttl=100 : ttl=100 | |
+# | | : tos=inherit : tos=inherit | |
+# | +-------------------------:--|-------------------:--|-----------------+ |
+# | : | : | |
+# | +-------------------------:--|-------------------:--|-----------------+ |
+# | | UL : |,---------------------' | |
+# | | + $swp3 : || : | |
+# | | | 192.0.2.129/28 : vv : | |
+# | | | 2001:db8:2::1/64 : + ul (dummy) : | |
+# | +---|---------------------:----------------------:--------------------+ |
+# +-----|---------------------:----------------------:----------------------+
+# | : :
+# +-----|---------------------:----------------------:----------------------+
+# | H3 + $h3 + h3-gt6 (ip6gretap) + h3-gt4 (gretap) |
+# | 192.0.2.130/28 loc=2001:db8:2::2 loc=192.0.2.130 |
+# | 2001:db8:2::2/64 rem=2001:db8:2::1 rem=192.0.2.129 |
+# | ttl=100 ttl=100 |
+# | tos=inherit tos=inherit |
+# | |
+# +-------------------------------------------------------------------------+
+#
+# This tests mirroring to gretap and ip6gretap configured in an overlay /
+# underlay manner, i.e. with a bound dummy device that marks underlay VRF where
+# the encapsulated packed should be routed.
+
+ALL_TESTS="
+ test_gretap
+ test_ip6gretap
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/28
+}
+
+h1_destroy()
+{
+ simple_if_fini $h1 192.0.2.1/28
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.2/28
+}
+
+h2_destroy()
+{
+ simple_if_fini $h2 192.0.2.2/28
+}
+
+h3_create()
+{
+ simple_if_init $h3 192.0.2.130/28 2001:db8:2::2/64
+
+ tunnel_create h3-gt4 gretap 192.0.2.130 192.0.2.129
+ ip link set h3-gt4 vrf v$h3
+ matchall_sink_create h3-gt4
+
+ tunnel_create h3-gt6 ip6gretap 2001:db8:2::2 2001:db8:2::1
+ ip link set h3-gt6 vrf v$h3
+ matchall_sink_create h3-gt6
+}
+
+h3_destroy()
+{
+ tunnel_destroy h3-gt6
+ tunnel_destroy h3-gt4
+
+ simple_if_fini $h3 192.0.2.130/28 2001:db8:2::2/64
+}
+
+switch_create()
+{
+ # Bridge between H1 and H2.
+
+ ip link add name br1 type bridge vlan_filtering 1
+ ip link set dev br1 up
+
+ ip link set dev $swp1 master br1
+ ip link set dev $swp1 up
+
+ ip link set dev $swp2 master br1
+ ip link set dev $swp2 up
+
+ tc qdisc add dev $swp1 clsact
+
+ # Underlay.
+
+ simple_if_init $swp3 192.0.2.129/28 2001:db8:2::1/64
+
+ ip link add name ul type dummy
+ ip link set dev ul master v$swp3
+ ip link set dev ul up
+
+ # Overlay.
+
+ vrf_create vrf-ol
+ ip link set dev vrf-ol up
+
+ tunnel_create gt4 gretap 192.0.2.129 192.0.2.130 \
+ ttl 100 tos inherit dev ul
+ ip link set dev gt4 master vrf-ol
+ ip link set dev gt4 up
+
+ tunnel_create gt6 ip6gretap 2001:db8:2::1 2001:db8:2::2 \
+ ttl 100 tos inherit dev ul allow-localremote
+ ip link set dev gt6 master vrf-ol
+ ip link set dev gt6 up
+}
+
+switch_destroy()
+{
+ vrf_destroy vrf-ol
+
+ tunnel_destroy gt6
+ tunnel_destroy gt4
+
+ simple_if_fini $swp3 192.0.2.129/28 2001:db8:2::1/64
+
+ ip link del dev ul
+
+ tc qdisc del dev $swp1 clsact
+
+ ip link set dev $swp1 down
+ ip link set dev $swp2 down
+ ip link del dev br1
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ swp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+ h3_create
+
+ switch_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ switch_destroy
+
+ h3_destroy
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+test_gretap()
+{
+ full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap w/ UL"
+ full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap w/ UL"
+}
+
+test_ip6gretap()
+{
+ full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap w/ UL"
+ full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap w/ UL"
+}
+
+test_all()
+{
+ RET=0
+
+ slow_path_trap_install $swp1 ingress
+ slow_path_trap_install $swp1 egress
+
+ tests_run
+
+ slow_path_trap_uninstall $swp1 egress
+ slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+ echo "WARN: Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1d.sh b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1d.sh
new file mode 100755
index 000000000..c5095da7f
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1d.sh
@@ -0,0 +1,132 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test for "tc action mirred egress mirror" when the underlay route points at a
+# bridge device without vlan filtering (802.1d).
+#
+# This test uses standard topology for testing mirror-to-gretap. See
+# mirror_gre_topo_lib.sh for more details. The full topology is as follows:
+#
+# +---------------------+ +---------------------+
+# | H1 | | H2 |
+# | + $h1 | | $h2 + |
+# | | 192.0.2.1/28 | | 192.0.2.2/28 | |
+# +-----|---------------+ +---------------|-----+
+# | |
+# +-----|-------------------------------------------------------------|-----+
+# | SW o---> mirror | |
+# | +---|-------------------------------------------------------------|---+ |
+# | | + $swp1 + br1 (802.1q bridge) $swp2 + | |
+# | +---------------------------------------------------------------------+ |
+# | |
+# | +---------------------------------------------------------------------+ |
+# | | + br2 (802.1d bridge) | |
+# | | 192.0.2.129/28 | |
+# | | + $swp3 2001:db8:2::1/64 | |
+# | +---|-----------------------------------------------------------------+ |
+# | | ^ ^ |
+# | | + gt6 (ip6gretap) | + gt4 (gretap) | |
+# | | : loc=2001:db8:2::1 | : loc=192.0.2.129 | |
+# | | : rem=2001:db8:2::2 -+ : rem=192.0.2.130 -+ |
+# | | : ttl=100 : ttl=100 |
+# | | : tos=inherit : tos=inherit |
+# +-----|---------------------:----------------------:----------------------+
+# | : :
+# +-----|---------------------:----------------------:----------------------+
+# | H3 + $h3 + h3-gt6(ip6gretap) + h3-gt4 (gretap) |
+# | 192.0.2.130/28 loc=2001:db8:2::2 loc=192.0.2.130 |
+# | 2001:db8:2::2/64 rem=2001:db8:2::1 rem=192.0.2.129 |
+# | ttl=100 ttl=100 |
+# | tos=inherit tos=inherit |
+# +-------------------------------------------------------------------------+
+
+ALL_TESTS="
+ test_gretap
+ test_ip6gretap
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ swp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ vrf_prepare
+ mirror_gre_topo_create
+
+ ip link add name br2 type bridge vlan_filtering 0
+ ip link set dev br2 up
+
+ ip link set dev $swp3 master br2
+ ip route add 192.0.2.130/32 dev br2
+ ip -6 route add 2001:db8:2::2/128 dev br2
+
+ ip address add dev br2 192.0.2.129/28
+ ip address add dev br2 2001:db8:2::1/64
+
+ ip address add dev $h3 192.0.2.130/28
+ ip address add dev $h3 2001:db8:2::2/64
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ ip address del dev $h3 2001:db8:2::2/64
+ ip address del dev $h3 192.0.2.130/28
+ ip link del dev br2
+
+ mirror_gre_topo_destroy
+ vrf_cleanup
+}
+
+test_gretap()
+{
+ full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap"
+ full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap"
+}
+
+test_ip6gretap()
+{
+ full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap"
+ full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap"
+}
+
+test_all()
+{
+ slow_path_trap_install $swp1 ingress
+ slow_path_trap_install $swp1 egress
+
+ tests_run
+
+ slow_path_trap_uninstall $swp1 egress
+ slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+ echo "WARN: Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1d_vlan.sh b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1d_vlan.sh
new file mode 100755
index 000000000..f8cda822c
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1d_vlan.sh
@@ -0,0 +1,132 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# Test for "tc action mirred egress mirror" when the underlay route points at a
+# bridge device without vlan filtering (802.1d). The device attached to that
+# bridge is a VLAN.
+
+ALL_TESTS="
+ test_gretap
+ test_ip6gretap
+ test_gretap_stp
+ test_ip6gretap_stp
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ swp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ vrf_prepare
+ mirror_gre_topo_create
+
+ ip link add name br2 type bridge vlan_filtering 0
+ ip link set dev br2 up
+
+ vlan_create $swp3 555
+
+ ip link set dev $swp3.555 master br2
+ ip route add 192.0.2.130/32 dev br2
+ ip -6 route add 2001:db8:2::2/128 dev br2
+
+ ip address add dev br2 192.0.2.129/32
+ ip address add dev br2 2001:db8:2::1/128
+
+ vlan_create $h3 555 v$h3 192.0.2.130/28 2001:db8:2::2/64
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ vlan_destroy $h3 555
+ ip link del dev br2
+ vlan_destroy $swp3 555
+
+ mirror_gre_topo_destroy
+ vrf_cleanup
+}
+
+test_vlan_match()
+{
+ local tundev=$1; shift
+ local vlan_match=$1; shift
+ local what=$1; shift
+
+ full_test_span_gre_dir_vlan $tundev ingress "$vlan_match" 8 0 "$what"
+ full_test_span_gre_dir_vlan $tundev egress "$vlan_match" 0 8 "$what"
+}
+
+test_gretap()
+{
+ test_vlan_match gt4 'skip_hw vlan_id 555 vlan_ethtype ip' \
+ "mirror to gretap"
+}
+
+test_ip6gretap()
+{
+ test_vlan_match gt6 'skip_hw vlan_id 555 vlan_ethtype ip' \
+ "mirror to ip6gretap"
+}
+
+test_gretap_stp()
+{
+ # Sometimes after mirror installation, the neighbor's state is not valid.
+ # The reason is that there is no SW datapath activity related to the
+ # neighbor for the remote GRE address. Therefore whether the corresponding
+ # neighbor will be valid is a matter of luck, and the test is thus racy.
+ # Set the neighbor's state to permanent, so it would be always valid.
+ ip neigh replace 192.0.2.130 lladdr $(mac_get $h3) \
+ nud permanent dev br2
+ full_test_span_gre_stp gt4 $swp3.555 "mirror to gretap"
+}
+
+test_ip6gretap_stp()
+{
+ ip neigh replace 2001:db8:2::2 lladdr $(mac_get $h3) \
+ nud permanent dev br2
+ full_test_span_gre_stp gt6 $swp3.555 "mirror to ip6gretap"
+}
+
+test_all()
+{
+ slow_path_trap_install $swp1 ingress
+ slow_path_trap_install $swp1 egress
+
+ tests_run
+
+ slow_path_trap_uninstall $swp1 egress
+ slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+ echo "WARN: Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q.sh b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q.sh
new file mode 100755
index 000000000..9ff22f280
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q.sh
@@ -0,0 +1,129 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test for "tc action mirred egress mirror" when the underlay route points at a
+# bridge device with vlan filtering (802.1q).
+#
+# This test uses standard topology for testing mirror-to-gretap. See
+# mirror_gre_topo_lib.sh for more details. The full topology is as follows:
+#
+# +---------------------+ +---------------------+
+# | H1 | | H2 |
+# | + $h1 | | $h2 + |
+# | | 192.0.2.1/28 | | 192.0.2.2/28 | |
+# +-----|---------------+ +---------------|-----+
+# | |
+# +-----|---------------------------------------------------------------|-----+
+# | SW o---> mirror | |
+# | +---|---------------------------------------------------------------|---+ |
+# | | + $swp1 + br1 (802.1q bridge) $swp2 + | |
+# | | 192.0.2.129/28 | |
+# | | + $swp3 2001:db8:2::1/64 | |
+# | | | vid555 vid555[pvid,untagged] | |
+# | +---|-------------------------------------------------------------------+ |
+# | | ^ ^ |
+# | | + gt6 (ip6gretap) | + gt4 (gretap) | |
+# | | : loc=2001:db8:2::1 | : loc=192.0.2.129 | |
+# | | : rem=2001:db8:2::2 -+ : rem=192.0.2.130 -+ |
+# | | : ttl=100 : ttl=100 |
+# | | : tos=inherit : tos=inherit |
+# +-----|---------------------:------------------------:----------------------+
+# | : :
+# +-----|---------------------:------------------------:----------------------+
+# | H3 + $h3 + h3-gt6(ip6gretap) + h3-gt4 (gretap) |
+# | | loc=2001:db8:2::2 loc=192.0.2.130 |
+# | + $h3.555 rem=2001:db8:2::1 rem=192.0.2.129 |
+# | 192.0.2.130/28 ttl=100 ttl=100 |
+# | 2001:db8:2::2/64 tos=inherit tos=inherit |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+ test_gretap
+ test_ip6gretap
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ swp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ vrf_prepare
+ mirror_gre_topo_create
+ # Avoid changing br1's PVID while it is operational as a L3 interface.
+ ip link set dev br1 down
+
+ ip link set dev $swp3 master br1
+ bridge vlan add dev br1 vid 555 pvid untagged self
+ ip link set dev br1 up
+ ip address add dev br1 192.0.2.129/28
+ ip address add dev br1 2001:db8:2::1/64
+
+ ip -4 route add 192.0.2.130/32 dev br1
+ ip -6 route add 2001:db8:2::2/128 dev br1
+
+ vlan_create $h3 555 v$h3 192.0.2.130/28 2001:db8:2::2/64
+ bridge vlan add dev $swp3 vid 555
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ ip link set dev $swp3 nomaster
+ vlan_destroy $h3 555
+
+ mirror_gre_topo_destroy
+ vrf_cleanup
+}
+
+test_gretap()
+{
+ full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap"
+ full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap"
+}
+
+test_ip6gretap()
+{
+ full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap"
+ full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap"
+}
+
+tests()
+{
+ slow_path_trap_install $swp1 ingress
+ slow_path_trap_install $swp1 egress
+
+ tests_run
+
+ slow_path_trap_uninstall $swp1 egress
+ slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+tests
+
+if ! tc_offload_check; then
+ echo "WARN: Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ tests
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q_lag.sh b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q_lag.sh
new file mode 100755
index 000000000..28d568c48
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q_lag.sh
@@ -0,0 +1,292 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test for "tc action mirred egress mirror" when the underlay route points at a
+# bridge device with vlan filtering (802.1q), and the egress device is a team
+# device.
+#
+# +----------------------+ +----------------------+
+# | H1 | | H2 |
+# | + $h1.333 | | $h1.555 + |
+# | | 192.0.2.1/28 | | 192.0.2.18/28 | |
+# +-----|----------------+ +----------------|-----+
+# | $h1 |
+# +--------------------------------+------------------------------+
+# |
+# +--------------------------------------|------------------------------------+
+# | SW o---> mirror |
+# | | |
+# | +--------------------------------+------------------------------+ |
+# | | $swp1 | |
+# | + $swp1.333 $swp1.555 + |
+# | 192.0.2.2/28 192.0.2.17/28 |
+# | |
+# | +-----------------------------------------------------------------------+ |
+# | | BR1 (802.1q) | |
+# | | + lag (team) 192.0.2.129/28 | |
+# | | / \ 2001:db8:2::1/64 | |
+# | +---/---\---------------------------------------------------------------+ |
+# | / \ ^ |
+# | | \ + gt4 (gretap) | |
+# | | \ loc=192.0.2.129 | |
+# | | \ rem=192.0.2.130 -+ |
+# | | \ ttl=100 |
+# | | \ tos=inherit |
+# | | \ |
+# | | \_________________________________ |
+# | | \ |
+# | + $swp3 + $swp4 |
+# +---|------------------------------------------------|----------------------+
+# | |
+# +---|----------------------+ +---|----------------------+
+# | + $h3 H3 | | + $h4 H4 |
+# | 192.0.2.130/28 | | 192.0.2.130/28 |
+# | 2001:db8:2::2/64 | | 2001:db8:2::2/64 |
+# +--------------------------+ +--------------------------+
+
+ALL_TESTS="
+ test_mirror_gretap_first
+ test_mirror_gretap_second
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+
+require_command $ARPING
+
+vlan_host_create()
+{
+ local if_name=$1; shift
+ local vid=$1; shift
+ local vrf_name=$1; shift
+ local ips=("${@}")
+
+ vrf_create $vrf_name
+ ip link set dev $vrf_name up
+ vlan_create $if_name $vid $vrf_name "${ips[@]}"
+}
+
+vlan_host_destroy()
+{
+ local if_name=$1; shift
+ local vid=$1; shift
+ local vrf_name=$1; shift
+
+ vlan_destroy $if_name $vid
+ ip link set dev $vrf_name down
+ vrf_destroy $vrf_name
+}
+
+h1_create()
+{
+ vlan_host_create $h1 333 vrf-h1 192.0.2.1/28
+ ip -4 route add 192.0.2.16/28 vrf vrf-h1 nexthop via 192.0.2.2
+}
+
+h1_destroy()
+{
+ ip -4 route del 192.0.2.16/28 vrf vrf-h1
+ vlan_host_destroy $h1 333 vrf-h1
+}
+
+h2_create()
+{
+ vlan_host_create $h1 555 vrf-h2 192.0.2.18/28
+ ip -4 route add 192.0.2.0/28 vrf vrf-h2 nexthop via 192.0.2.17
+}
+
+h2_destroy()
+{
+ ip -4 route del 192.0.2.0/28 vrf vrf-h2
+ vlan_host_destroy $h1 555 vrf-h2
+}
+
+h3_create()
+{
+ simple_if_init $h3 192.0.2.130/28
+ tc qdisc add dev $h3 clsact
+}
+
+h3_destroy()
+{
+ tc qdisc del dev $h3 clsact
+ simple_if_fini $h3 192.0.2.130/28
+}
+
+h4_create()
+{
+ simple_if_init $h4 192.0.2.130/28
+ tc qdisc add dev $h4 clsact
+}
+
+h4_destroy()
+{
+ tc qdisc del dev $h4 clsact
+ simple_if_fini $h4 192.0.2.130/28
+}
+
+switch_create()
+{
+ ip link set dev $swp1 up
+ tc qdisc add dev $swp1 clsact
+ vlan_create $swp1 333 "" 192.0.2.2/28
+ vlan_create $swp1 555 "" 192.0.2.17/28
+
+ tunnel_create gt4 gretap 192.0.2.129 192.0.2.130 \
+ ttl 100 tos inherit
+
+ ip link set dev $swp3 up
+ ip link set dev $swp4 up
+
+ ip link add name br1 type bridge vlan_filtering 1
+ ip link set dev br1 up
+ __addr_add_del br1 add 192.0.2.129/32
+ ip -4 route add 192.0.2.130/32 dev br1
+
+ team_create lag loadbalance $swp3 $swp4
+ ip link set dev lag master br1
+}
+
+switch_destroy()
+{
+ ip link set dev lag nomaster
+ team_destroy lag
+
+ ip -4 route del 192.0.2.130/32 dev br1
+ __addr_add_del br1 del 192.0.2.129/32
+ ip link set dev br1 down
+ ip link del dev br1
+
+ ip link set dev $swp4 down
+ ip link set dev $swp3 down
+
+ tunnel_destroy gt4
+
+ vlan_destroy $swp1 555
+ vlan_destroy $swp1 333
+ tc qdisc del dev $swp1 clsact
+ ip link set dev $swp1 down
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp3=${NETIFS[p3]}
+ h3=${NETIFS[p4]}
+
+ swp4=${NETIFS[p5]}
+ h4=${NETIFS[p6]}
+
+ vrf_prepare
+
+ ip link set dev $h1 up
+ h1_create
+ h2_create
+ h3_create
+ h4_create
+ switch_create
+
+ forwarding_enable
+
+ trap_install $h3 ingress
+ trap_install $h4 ingress
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ trap_uninstall $h4 ingress
+ trap_uninstall $h3 ingress
+
+ forwarding_restore
+
+ switch_destroy
+ h4_destroy
+ h3_destroy
+ h2_destroy
+ h1_destroy
+ ip link set dev $h1 down
+
+ vrf_cleanup
+}
+
+test_lag_slave()
+{
+ local host_dev=$1; shift
+ local up_dev=$1; shift
+ local down_dev=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ tc filter add dev $swp1 ingress pref 999 \
+ proto 802.1q flower vlan_ethtype arp $tcflags \
+ action pass
+ mirror_install $swp1 ingress gt4 \
+ "proto 802.1q flower vlan_id 333 $tcflags"
+
+ # Test connectivity through $up_dev when $down_dev is set down.
+ ip link set dev $down_dev down
+ ip neigh flush dev br1
+ setup_wait_dev $up_dev
+ setup_wait_dev $host_dev
+ $ARPING -I br1 192.0.2.130 -qfc 1
+ sleep 2
+ mirror_test vrf-h1 192.0.2.1 192.0.2.18 $host_dev 1 10
+
+ # Test lack of connectivity when both slaves are down.
+ ip link set dev $up_dev down
+ sleep 2
+ mirror_test vrf-h1 192.0.2.1 192.0.2.18 $h3 1 0
+ mirror_test vrf-h1 192.0.2.1 192.0.2.18 $h4 1 0
+
+ ip link set dev $up_dev up
+ ip link set dev $down_dev up
+ mirror_uninstall $swp1 ingress
+ tc filter del dev $swp1 ingress pref 999
+
+ log_test "$what ($tcflags)"
+}
+
+test_mirror_gretap_first()
+{
+ test_lag_slave $h3 $swp3 $swp4 "mirror to gretap: LAG first slave"
+}
+
+test_mirror_gretap_second()
+{
+ test_lag_slave $h4 $swp4 $swp3 "mirror to gretap: LAG second slave"
+}
+
+test_all()
+{
+ slow_path_trap_install $swp1 ingress
+ slow_path_trap_install $swp1 egress
+
+ tests_run
+
+ slow_path_trap_uninstall $swp1 egress
+ slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+ echo "WARN: Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh b/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh
new file mode 100755
index 000000000..b501b3663
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh
@@ -0,0 +1,273 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# Test how mirrors to gretap and ip6gretap react to changes to relevant
+# configuration.
+
+ALL_TESTS="
+ test_ttl
+ test_tun_up
+ test_egress_up
+ test_remote_ip
+ test_tun_del
+ test_route_del
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ swp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ vrf_prepare
+ mirror_gre_topo_create
+
+ # This test downs $swp3, which deletes the configured IPv6 address
+ # unless this sysctl is set.
+ sysctl_set net.ipv6.conf.$swp3.keep_addr_on_down 1
+
+ ip address add dev $swp3 192.0.2.129/28
+ ip address add dev $h3 192.0.2.130/28
+
+ ip address add dev $swp3 2001:db8:2::1/64
+ ip address add dev $h3 2001:db8:2::2/64
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ ip address del dev $h3 2001:db8:2::2/64
+ ip address del dev $swp3 2001:db8:2::1/64
+
+ ip address del dev $h3 192.0.2.130/28
+ ip address del dev $swp3 192.0.2.129/28
+
+ sysctl_restore net.ipv6.conf.$swp3.keep_addr_on_down
+
+ mirror_gre_topo_destroy
+ vrf_cleanup
+}
+
+test_span_gre_ttl()
+{
+ local tundev=$1; shift
+ local type=$1; shift
+ local prot=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ mirror_install $swp1 ingress $tundev \
+ "prot ip flower $tcflags ip_prot icmp"
+ tc filter add dev $h3 ingress pref 77 prot $prot \
+ flower ip_ttl 50 action pass
+
+ mirror_test v$h1 192.0.2.1 192.0.2.2 $h3 77 0
+
+ ip link set dev $tundev type $type ttl 50
+ sleep 2
+ mirror_test v$h1 192.0.2.1 192.0.2.2 $h3 77 10
+
+ ip link set dev $tundev type $type ttl 100
+ tc filter del dev $h3 ingress pref 77
+ mirror_uninstall $swp1 ingress
+
+ log_test "$what: TTL change ($tcflags)"
+}
+
+test_span_gre_tun_up()
+{
+ local tundev=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ ip link set dev $tundev down
+ mirror_install $swp1 ingress $tundev "matchall $tcflags"
+ fail_test_span_gre_dir $tundev ingress
+
+ ip link set dev $tundev up
+
+ quick_test_span_gre_dir $tundev ingress
+ mirror_uninstall $swp1 ingress
+
+ log_test "$what: tunnel down/up ($tcflags)"
+}
+
+test_span_gre_egress_up()
+{
+ local tundev=$1; shift
+ local remote_ip=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ ip link set dev $swp3 down
+ mirror_install $swp1 ingress $tundev "matchall $tcflags"
+ fail_test_span_gre_dir $tundev ingress
+
+ # After setting the device up, wait for neighbor to get resolved so that
+ # we can expect mirroring to work.
+ ip link set dev $swp3 up
+ setup_wait_dev $swp3
+ ping -c 1 -I $swp3 $remote_ip &>/dev/null
+
+ quick_test_span_gre_dir $tundev ingress
+ mirror_uninstall $swp1 ingress
+
+ log_test "$what: egress down/up ($tcflags)"
+}
+
+test_span_gre_remote_ip()
+{
+ local tundev=$1; shift
+ local type=$1; shift
+ local correct_ip=$1; shift
+ local wrong_ip=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ ip link set dev $tundev type $type remote $wrong_ip
+ mirror_install $swp1 ingress $tundev "matchall $tcflags"
+ fail_test_span_gre_dir $tundev ingress
+
+ ip link set dev $tundev type $type remote $correct_ip
+ quick_test_span_gre_dir $tundev ingress
+ mirror_uninstall $swp1 ingress
+
+ log_test "$what: remote address change ($tcflags)"
+}
+
+test_span_gre_tun_del()
+{
+ local tundev=$1; shift
+ local type=$1; shift
+ local flags=$1; shift
+ local local_ip=$1; shift
+ local remote_ip=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ mirror_install $swp1 ingress $tundev "matchall $tcflags"
+ quick_test_span_gre_dir $tundev ingress
+ ip link del dev $tundev
+ fail_test_span_gre_dir $tundev ingress
+
+ tunnel_create $tundev $type $local_ip $remote_ip \
+ ttl 100 tos inherit $flags
+
+ # Recreating the tunnel doesn't reestablish mirroring, so reinstall it
+ # and verify it works for the follow-up tests.
+ mirror_uninstall $swp1 ingress
+ mirror_install $swp1 ingress $tundev "matchall $tcflags"
+ quick_test_span_gre_dir $tundev ingress
+ mirror_uninstall $swp1 ingress
+
+ log_test "$what: tunnel deleted ($tcflags)"
+}
+
+test_span_gre_route_del()
+{
+ local tundev=$1; shift
+ local edev=$1; shift
+ local route=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ mirror_install $swp1 ingress $tundev "matchall $tcflags"
+ quick_test_span_gre_dir $tundev ingress
+
+ ip route del $route dev $edev
+ fail_test_span_gre_dir $tundev ingress
+
+ ip route add $route dev $edev
+ quick_test_span_gre_dir $tundev ingress
+
+ mirror_uninstall $swp1 ingress
+
+ log_test "$what: underlay route removal ($tcflags)"
+}
+
+test_ttl()
+{
+ test_span_gre_ttl gt4 gretap ip "mirror to gretap"
+ test_span_gre_ttl gt6 ip6gretap ipv6 "mirror to ip6gretap"
+}
+
+test_tun_up()
+{
+ test_span_gre_tun_up gt4 "mirror to gretap"
+ test_span_gre_tun_up gt6 "mirror to ip6gretap"
+}
+
+test_egress_up()
+{
+ test_span_gre_egress_up gt4 192.0.2.130 "mirror to gretap"
+ test_span_gre_egress_up gt6 2001:db8:2::2 "mirror to ip6gretap"
+}
+
+test_remote_ip()
+{
+ test_span_gre_remote_ip gt4 gretap 192.0.2.130 192.0.2.132 "mirror to gretap"
+ test_span_gre_remote_ip gt6 ip6gretap 2001:db8:2::2 2001:db8:2::4 "mirror to ip6gretap"
+}
+
+test_tun_del()
+{
+ test_span_gre_tun_del gt4 gretap "" \
+ 192.0.2.129 192.0.2.130 "mirror to gretap"
+ test_span_gre_tun_del gt6 ip6gretap allow-localremote \
+ 2001:db8:2::1 2001:db8:2::2 "mirror to ip6gretap"
+}
+
+test_route_del()
+{
+ test_span_gre_route_del gt4 $swp3 192.0.2.128/28 "mirror to gretap"
+ test_span_gre_route_del gt6 $swp3 2001:db8:2::/64 "mirror to ip6gretap"
+}
+
+test_all()
+{
+ slow_path_trap_install $swp1 ingress
+ slow_path_trap_install $swp1 egress
+
+ tests_run
+
+ slow_path_trap_uninstall $swp1 egress
+ slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+ echo "WARN: Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_flower.sh b/tools/testing/selftests/net/forwarding/mirror_gre_flower.sh
new file mode 100755
index 000000000..09389f3b9
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_flower.sh
@@ -0,0 +1,137 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# This tests flower-triggered mirroring to gretap and ip6gretap netdevices. The
+# interfaces on H1 and H2 have two addresses each. Flower match on one of the
+# addresses is configured with mirror action. It is expected that when pinging
+# this address, mirroring takes place, whereas when pinging the other one,
+# there's no mirroring.
+
+ALL_TESTS="
+ test_gretap
+ test_ip6gretap
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ swp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ vrf_prepare
+ mirror_gre_topo_create
+
+ ip address add dev $swp3 192.0.2.129/28
+ ip address add dev $h3 192.0.2.130/28
+
+ ip address add dev $swp3 2001:db8:2::1/64
+ ip address add dev $h3 2001:db8:2::2/64
+
+ ip address add dev $h1 192.0.2.3/28
+ ip address add dev $h2 192.0.2.4/28
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ ip address del dev $h2 192.0.2.4/28
+ ip address del dev $h1 192.0.2.3/28
+
+ ip address del dev $h3 2001:db8:2::2/64
+ ip address del dev $swp3 2001:db8:2::1/64
+
+ ip address del dev $h3 192.0.2.130/28
+ ip address del dev $swp3 192.0.2.129/28
+
+ mirror_gre_topo_destroy
+ vrf_cleanup
+}
+
+test_span_gre_dir_acl()
+{
+ test_span_gre_dir_ips "$@" 192.0.2.3 192.0.2.4
+}
+
+fail_test_span_gre_dir_acl()
+{
+ fail_test_span_gre_dir_ips "$@" 192.0.2.3 192.0.2.4
+}
+
+full_test_span_gre_dir_acl()
+{
+ local tundev=$1; shift
+ local direction=$1; shift
+ local forward_type=$1; shift
+ local backward_type=$1; shift
+ local match_dip=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ mirror_install $swp1 $direction $tundev \
+ "protocol ip flower $tcflags dst_ip $match_dip"
+ fail_test_span_gre_dir $tundev $direction
+ test_span_gre_dir_acl "$tundev" "$direction" \
+ "$forward_type" "$backward_type"
+ mirror_uninstall $swp1 $direction
+
+ # Test lack of mirroring after ACL mirror is uninstalled.
+ fail_test_span_gre_dir_acl "$tundev" "$direction"
+
+ log_test "$direction $what ($tcflags)"
+}
+
+test_gretap()
+{
+ full_test_span_gre_dir_acl gt4 ingress 8 0 192.0.2.4 "ACL mirror to gretap"
+ full_test_span_gre_dir_acl gt4 egress 0 8 192.0.2.3 "ACL mirror to gretap"
+}
+
+test_ip6gretap()
+{
+ full_test_span_gre_dir_acl gt6 ingress 8 0 192.0.2.4 "ACL mirror to ip6gretap"
+ full_test_span_gre_dir_acl gt6 egress 0 8 192.0.2.3 "ACL mirror to ip6gretap"
+}
+
+test_all()
+{
+ slow_path_trap_install $swp1 ingress
+ slow_path_trap_install $swp1 egress
+
+ tests_run
+
+ slow_path_trap_uninstall $swp1 egress
+ slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+ echo "WARN: Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_lag_lacp.sh b/tools/testing/selftests/net/forwarding/mirror_gre_lag_lacp.sh
new file mode 100755
index 000000000..9edf4cb10
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_lag_lacp.sh
@@ -0,0 +1,285 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test for "tc action mirred egress mirror" when the underlay route points at a
+# team device.
+#
+# +----------------------+ +----------------------+
+# | H1 | | H2 |
+# | + $h1.333 | | $h1.555 + |
+# | | 192.0.2.1/28 | | 192.0.2.18/28 | |
+# +----|-----------------+ +----------------|-----+
+# | $h1 |
+# +---------------------------------+------------------------------+
+# |
+# +--------------------------------------|------------------------------------+
+# | SW o---> mirror |
+# | | |
+# | +----------------------------------+------------------------------+ |
+# | | $swp1 | |
+# | + $swp1.333 $swp1.555 + |
+# | 192.0.2.2/28 192.0.2.17/28 |
+# | |
+# | |
+# | + gt4 (gretap) ,-> + lag1 (team) |
+# | loc=192.0.2.129 | | 192.0.2.129/28 |
+# | rem=192.0.2.130 --' | |
+# | ttl=100 | |
+# | tos=inherit | |
+# | _____________________|______________________ |
+# | / \ |
+# | / \ |
+# | + $swp3 + $swp4 |
+# +---|------------------------------------------------|----------------------+
+# | |
+# +---|------------------------------------------------|----------------------+
+# | + $h3 + $h4 H3 |
+# | \ / |
+# | \____________________________________________/ |
+# | | |
+# | + lag2 (team) |
+# | 192.0.2.130/28 |
+# | |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+ test_mirror_gretap_first
+ test_mirror_gretap_second
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+
+require_command $ARPING
+
+vlan_host_create()
+{
+ local if_name=$1; shift
+ local vid=$1; shift
+ local vrf_name=$1; shift
+ local ips=("${@}")
+
+ vrf_create $vrf_name
+ ip link set dev $vrf_name up
+ vlan_create $if_name $vid $vrf_name "${ips[@]}"
+}
+
+vlan_host_destroy()
+{
+ local if_name=$1; shift
+ local vid=$1; shift
+ local vrf_name=$1; shift
+
+ vlan_destroy $if_name $vid
+ ip link set dev $vrf_name down
+ vrf_destroy $vrf_name
+}
+
+h1_create()
+{
+ vlan_host_create $h1 333 vrf-h1 192.0.2.1/28
+ ip -4 route add 192.0.2.16/28 vrf vrf-h1 nexthop via 192.0.2.2
+}
+
+h1_destroy()
+{
+ ip -4 route del 192.0.2.16/28 vrf vrf-h1
+ vlan_host_destroy $h1 333 vrf-h1
+}
+
+h2_create()
+{
+ vlan_host_create $h1 555 vrf-h2 192.0.2.18/28
+ ip -4 route add 192.0.2.0/28 vrf vrf-h2 nexthop via 192.0.2.17
+}
+
+h2_destroy()
+{
+ ip -4 route del 192.0.2.0/28 vrf vrf-h2
+ vlan_host_destroy $h1 555 vrf-h2
+}
+
+h3_create_team()
+{
+ team_create lag2 lacp $h3 $h4
+ __simple_if_init lag2 vrf-h3 192.0.2.130/32
+ ip -4 route add vrf vrf-h3 192.0.2.129/32 dev lag2
+}
+
+h3_destroy_team()
+{
+ ip -4 route del vrf vrf-h3 192.0.2.129/32 dev lag2
+ __simple_if_fini lag2 192.0.2.130/32
+ team_destroy lag2
+
+ ip link set dev $h3 down
+ ip link set dev $h4 down
+}
+
+h3_create()
+{
+ vrf_create vrf-h3
+ ip link set dev vrf-h3 up
+ tc qdisc add dev $h3 clsact
+ tc qdisc add dev $h4 clsact
+ h3_create_team
+}
+
+h3_destroy()
+{
+ h3_destroy_team
+ tc qdisc del dev $h4 clsact
+ tc qdisc del dev $h3 clsact
+ ip link set dev vrf-h3 down
+ vrf_destroy vrf-h3
+}
+
+switch_create()
+{
+ ip link set dev $swp1 up
+ tc qdisc add dev $swp1 clsact
+ vlan_create $swp1 333 "" 192.0.2.2/28
+ vlan_create $swp1 555 "" 192.0.2.17/28
+
+ tunnel_create gt4 gretap 192.0.2.129 192.0.2.130 \
+ ttl 100 tos inherit
+
+ ip link set dev $swp3 up
+ ip link set dev $swp4 up
+ team_create lag1 lacp $swp3 $swp4
+ __addr_add_del lag1 add 192.0.2.129/32
+ ip -4 route add 192.0.2.130/32 dev lag1
+}
+
+switch_destroy()
+{
+ ip -4 route del 192.0.2.130/32 dev lag1
+ __addr_add_del lag1 del 192.0.2.129/32
+ team_destroy lag1
+
+ ip link set dev $swp4 down
+ ip link set dev $swp3 down
+
+ tunnel_destroy gt4
+
+ vlan_destroy $swp1 555
+ vlan_destroy $swp1 333
+ tc qdisc del dev $swp1 clsact
+ ip link set dev $swp1 down
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp3=${NETIFS[p3]}
+ h3=${NETIFS[p4]}
+
+ swp4=${NETIFS[p5]}
+ h4=${NETIFS[p6]}
+
+ vrf_prepare
+
+ ip link set dev $h1 up
+ h1_create
+ h2_create
+ h3_create
+ switch_create
+
+ trap_install $h3 ingress
+ trap_install $h4 ingress
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ trap_uninstall $h4 ingress
+ trap_uninstall $h3 ingress
+
+ switch_destroy
+ h3_destroy
+ h2_destroy
+ h1_destroy
+ ip link set dev $h1 down
+
+ vrf_cleanup
+}
+
+test_lag_slave()
+{
+ local up_dev=$1; shift
+ local down_dev=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ mirror_install $swp1 ingress gt4 \
+ "proto 802.1q flower vlan_id 333 $tcflags"
+
+ # Move $down_dev away from the team. That will prompt change in
+ # txability of the connected device, without changing its upness. The
+ # driver should notice the txability change and move the traffic to the
+ # other slave.
+ ip link set dev $down_dev nomaster
+ sleep 2
+ mirror_test vrf-h1 192.0.2.1 192.0.2.18 $up_dev 1 10
+
+ # Test lack of connectivity when neither slave is txable.
+ ip link set dev $up_dev nomaster
+ sleep 2
+ mirror_test vrf-h1 192.0.2.1 192.0.2.18 $h3 1 0
+ mirror_test vrf-h1 192.0.2.1 192.0.2.18 $h4 1 0
+ mirror_uninstall $swp1 ingress
+
+ # Recreate H3's team device, because mlxsw, which this test is
+ # predominantly mean to test, requires a bottom-up construction and
+ # doesn't allow enslavement to a device that already has an upper.
+ h3_destroy_team
+ h3_create_team
+ # Wait for ${h,swp}{3,4}.
+ setup_wait
+
+ log_test "$what ($tcflags)"
+}
+
+test_mirror_gretap_first()
+{
+ test_lag_slave $h3 $h4 "mirror to gretap: LAG first slave"
+}
+
+test_mirror_gretap_second()
+{
+ test_lag_slave $h4 $h3 "mirror to gretap: LAG second slave"
+}
+
+test_all()
+{
+ slow_path_trap_install $swp1 ingress
+ slow_path_trap_install $swp1 egress
+
+ tests_run
+
+ slow_path_trap_uninstall $swp1 egress
+ slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+ echo "WARN: Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_lib.sh b/tools/testing/selftests/net/forwarding/mirror_gre_lib.sh
new file mode 100644
index 000000000..fac486178
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_lib.sh
@@ -0,0 +1,130 @@
+# SPDX-License-Identifier: GPL-2.0
+
+source "$relative_path/mirror_lib.sh"
+
+quick_test_span_gre_dir_ips()
+{
+ local tundev=$1; shift
+
+ do_test_span_dir_ips 10 h3-$tundev "$@"
+}
+
+fail_test_span_gre_dir_ips()
+{
+ local tundev=$1; shift
+
+ do_test_span_dir_ips 0 h3-$tundev "$@"
+}
+
+test_span_gre_dir_ips()
+{
+ local tundev=$1; shift
+
+ test_span_dir_ips h3-$tundev "$@"
+}
+
+full_test_span_gre_dir_ips()
+{
+ local tundev=$1; shift
+ local direction=$1; shift
+ local forward_type=$1; shift
+ local backward_type=$1; shift
+ local what=$1; shift
+ local ip1=$1; shift
+ local ip2=$1; shift
+
+ RET=0
+
+ mirror_install $swp1 $direction $tundev "matchall $tcflags"
+ test_span_dir_ips "h3-$tundev" "$direction" "$forward_type" \
+ "$backward_type" "$ip1" "$ip2"
+ mirror_uninstall $swp1 $direction
+
+ log_test "$direction $what ($tcflags)"
+}
+
+full_test_span_gre_dir_vlan_ips()
+{
+ local tundev=$1; shift
+ local direction=$1; shift
+ local vlan_match=$1; shift
+ local forward_type=$1; shift
+ local backward_type=$1; shift
+ local what=$1; shift
+ local ip1=$1; shift
+ local ip2=$1; shift
+
+ RET=0
+
+ mirror_install $swp1 $direction $tundev "matchall $tcflags"
+
+ test_span_dir_ips "h3-$tundev" "$direction" "$forward_type" \
+ "$backward_type" "$ip1" "$ip2"
+
+ tc filter add dev $h3 ingress pref 77 prot 802.1q \
+ flower $vlan_match \
+ action pass
+ mirror_test v$h1 $ip1 $ip2 $h3 77 10
+ tc filter del dev $h3 ingress pref 77
+
+ mirror_uninstall $swp1 $direction
+
+ log_test "$direction $what ($tcflags)"
+}
+
+quick_test_span_gre_dir()
+{
+ quick_test_span_gre_dir_ips "$@" 192.0.2.1 192.0.2.2
+}
+
+fail_test_span_gre_dir()
+{
+ fail_test_span_gre_dir_ips "$@" 192.0.2.1 192.0.2.2
+}
+
+test_span_gre_dir()
+{
+ test_span_gre_dir_ips "$@" 192.0.2.1 192.0.2.2
+}
+
+full_test_span_gre_dir()
+{
+ full_test_span_gre_dir_ips "$@" 192.0.2.1 192.0.2.2
+}
+
+full_test_span_gre_dir_vlan()
+{
+ full_test_span_gre_dir_vlan_ips "$@" 192.0.2.1 192.0.2.2
+}
+
+full_test_span_gre_stp_ips()
+{
+ local tundev=$1; shift
+ local nbpdev=$1; shift
+ local what=$1; shift
+ local ip1=$1; shift
+ local ip2=$1; shift
+ local h3mac=$(mac_get $h3)
+
+ RET=0
+
+ mirror_install $swp1 ingress $tundev "matchall $tcflags"
+ quick_test_span_gre_dir_ips $tundev ingress $ip1 $ip2
+
+ bridge link set dev $nbpdev state disabled
+ sleep 1
+ fail_test_span_gre_dir_ips $tundev ingress $ip1 $ip2
+
+ bridge link set dev $nbpdev state forwarding
+ sleep 1
+ quick_test_span_gre_dir_ips $tundev ingress $ip1 $ip2
+
+ mirror_uninstall $swp1 ingress
+
+ log_test "$what: STP state ($tcflags)"
+}
+
+full_test_span_gre_stp()
+{
+ full_test_span_gre_stp_ips "$@" 192.0.2.1 192.0.2.2
+}
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_neigh.sh b/tools/testing/selftests/net/forwarding/mirror_gre_neigh.sh
new file mode 100755
index 000000000..fc0508e40
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_neigh.sh
@@ -0,0 +1,115 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# Test for mirroring to gretap and ip6gretap, such that the neighbor entry for
+# the tunnel remote address has invalid address at the time that the mirroring
+# is set up. Later on, the neighbor is deleted and it is expected to be
+# reinitialized using the usual ARP process, and the mirroring offload updated.
+
+ALL_TESTS="
+ test_gretap
+ test_ip6gretap
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ swp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ vrf_prepare
+ mirror_gre_topo_create
+
+ ip address add dev $swp3 192.0.2.129/28
+ ip address add dev $h3 192.0.2.130/28
+
+ ip address add dev $swp3 2001:db8:2::1/64
+ ip address add dev $h3 2001:db8:2::2/64
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ ip address del dev $h3 2001:db8:2::2/64
+ ip address del dev $swp3 2001:db8:2::1/64
+
+ ip address del dev $h3 192.0.2.130/28
+ ip address del dev $swp3 192.0.2.129/28
+
+ mirror_gre_topo_destroy
+ vrf_cleanup
+}
+
+test_span_gre_neigh()
+{
+ local addr=$1; shift
+ local tundev=$1; shift
+ local direction=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ ip neigh replace dev $swp3 $addr lladdr 00:11:22:33:44:55
+ mirror_install $swp1 $direction $tundev "matchall $tcflags"
+ fail_test_span_gre_dir $tundev ingress
+ ip neigh del dev $swp3 $addr
+ quick_test_span_gre_dir $tundev ingress
+ mirror_uninstall $swp1 $direction
+
+ log_test "$direction $what: neighbor change ($tcflags)"
+}
+
+test_gretap()
+{
+ test_span_gre_neigh 192.0.2.130 gt4 ingress "mirror to gretap"
+ test_span_gre_neigh 192.0.2.130 gt4 egress "mirror to gretap"
+}
+
+test_ip6gretap()
+{
+ test_span_gre_neigh 2001:db8:2::2 gt6 ingress "mirror to ip6gretap"
+ test_span_gre_neigh 2001:db8:2::2 gt6 egress "mirror to ip6gretap"
+}
+
+test_all()
+{
+ slow_path_trap_install $swp1 ingress
+ slow_path_trap_install $swp1 egress
+
+ tests_run
+
+ slow_path_trap_uninstall $swp1 egress
+ slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+ echo "WARN: Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_nh.sh b/tools/testing/selftests/net/forwarding/mirror_gre_nh.sh
new file mode 100755
index 000000000..6f9ef1820
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_nh.sh
@@ -0,0 +1,131 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# Test that gretap and ip6gretap mirroring works when the other tunnel endpoint
+# is reachable through a next-hop route (as opposed to directly-attached route).
+
+ALL_TESTS="
+ test_gretap
+ test_ip6gretap
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ swp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ sysctl_set net.ipv4.conf.all.rp_filter 0
+ sysctl_set net.ipv4.conf.$h3.rp_filter 0
+
+ vrf_prepare
+ mirror_gre_topo_create
+
+ sysctl_set net.ipv4.conf.v$h3.rp_filter 0
+
+ ip address add dev $swp3 192.0.2.161/28
+ ip address add dev $h3 192.0.2.162/28
+ ip address add dev gt4 192.0.2.129/32
+ ip address add dev h3-gt4 192.0.2.130/32
+
+ # IPv6 route can't be added after address. Such routes are rejected due
+ # to the gateway address having been configured on the local system. It
+ # works the other way around though.
+ ip address add dev $swp3 2001:db8:4::1/64
+ ip -6 route add 2001:db8:2::2/128 via 2001:db8:4::2
+ ip address add dev $h3 2001:db8:4::2/64
+ ip address add dev gt6 2001:db8:2::1
+ ip address add dev h3-gt6 2001:db8:2::2
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ ip -6 route del 2001:db8:2::2/128 via 2001:db8:4::2
+ ip address del dev $h3 2001:db8:4::2/64
+ ip address del dev $swp3 2001:db8:4::1/64
+
+ ip address del dev $h3 192.0.2.162/28
+ ip address del dev $swp3 192.0.2.161/28
+
+ sysctl_restore net.ipv4.conf.v$h3.rp_filter 0
+
+ mirror_gre_topo_destroy
+ vrf_cleanup
+
+ sysctl_restore net.ipv4.conf.$h3.rp_filter
+ sysctl_restore net.ipv4.conf.all.rp_filter
+}
+
+test_gretap()
+{
+ RET=0
+ mirror_install $swp1 ingress gt4 "matchall $tcflags"
+
+ # For IPv4, test that there's no mirroring without the route directing
+ # the traffic to tunnel remote address. Then add it and test that
+ # mirroring starts. For IPv6 we can't test this due to the limitation
+ # that routes for locally-specified IPv6 addresses can't be added.
+ fail_test_span_gre_dir gt4 ingress
+
+ ip route add 192.0.2.130/32 via 192.0.2.162
+ quick_test_span_gre_dir gt4 ingress
+ ip route del 192.0.2.130/32 via 192.0.2.162
+
+ mirror_uninstall $swp1 ingress
+ log_test "mirror to gre with next-hop remote ($tcflags)"
+}
+
+test_ip6gretap()
+{
+ RET=0
+
+ mirror_install $swp1 ingress gt6 "matchall $tcflags"
+ quick_test_span_gre_dir gt6 ingress
+ mirror_uninstall $swp1 ingress
+
+ log_test "mirror to ip6gre with next-hop remote ($tcflags)"
+}
+
+test_all()
+{
+ slow_path_trap_install $swp1 ingress
+ slow_path_trap_install $swp1 egress
+
+ tests_run
+
+ slow_path_trap_uninstall $swp1 egress
+ slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+ echo "WARN: Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_topo_lib.sh b/tools/testing/selftests/net/forwarding/mirror_gre_topo_lib.sh
new file mode 100644
index 000000000..39c03e286
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_topo_lib.sh
@@ -0,0 +1,94 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# This is the standard topology for testing mirroring to gretap and ip6gretap
+# netdevices. The tests that use it tweak it in one way or another--importantly,
+# $swp3 and $h3 need to have addresses set up.
+#
+# +---------------------+ +---------------------+
+# | H1 | | H2 |
+# | + $h1 | | $h2 + |
+# | | 192.0.2.1/28 | | 192.0.2.2/28 | |
+# +-----|---------------+ +---------------|-----+
+# | |
+# +-----|-------------------------------------------------------------|-----+
+# | SW o--> mirror | |
+# | +---|-------------------------------------------------------------|---+ |
+# | | + $swp1 BR $swp2 + | |
+# | +---------------------------------------------------------------------+ |
+# | |
+# | + $swp3 + gt6 (ip6gretap) + gt4 (gretap) |
+# | | : loc=2001:db8:2::1 : loc=192.0.2.129 |
+# | | : rem=2001:db8:2::2 : rem=192.0.2.130 |
+# | | : ttl=100 : ttl=100 |
+# | | : tos=inherit : tos=inherit |
+# | | : : |
+# +-----|---------------------:----------------------:----------------------+
+# | : :
+# +-----|---------------------:----------------------:----------------------+
+# | H3 + $h3 + h3-gt6 (ip6gretap) + h3-gt4 (gretap) |
+# | loc=2001:db8:2::2 loc=192.0.2.130 |
+# | rem=2001:db8:2::1 rem=192.0.2.129 |
+# | ttl=100 ttl=100 |
+# | tos=inherit tos=inherit |
+# | |
+# +-------------------------------------------------------------------------+
+
+source "$relative_path/mirror_topo_lib.sh"
+
+mirror_gre_topo_h3_create()
+{
+ mirror_topo_h3_create
+
+ tunnel_create h3-gt4 gretap 192.0.2.130 192.0.2.129
+ ip link set h3-gt4 vrf v$h3
+ matchall_sink_create h3-gt4
+
+ tunnel_create h3-gt6 ip6gretap 2001:db8:2::2 2001:db8:2::1
+ ip link set h3-gt6 vrf v$h3
+ matchall_sink_create h3-gt6
+}
+
+mirror_gre_topo_h3_destroy()
+{
+ tunnel_destroy h3-gt6
+ tunnel_destroy h3-gt4
+
+ mirror_topo_h3_destroy
+}
+
+mirror_gre_topo_switch_create()
+{
+ mirror_topo_switch_create
+
+ tunnel_create gt4 gretap 192.0.2.129 192.0.2.130 \
+ ttl 100 tos inherit
+
+ tunnel_create gt6 ip6gretap 2001:db8:2::1 2001:db8:2::2 \
+ ttl 100 tos inherit allow-localremote
+}
+
+mirror_gre_topo_switch_destroy()
+{
+ tunnel_destroy gt6
+ tunnel_destroy gt4
+
+ mirror_topo_switch_destroy
+}
+
+mirror_gre_topo_create()
+{
+ mirror_topo_h1_create
+ mirror_topo_h2_create
+ mirror_gre_topo_h3_create
+
+ mirror_gre_topo_switch_create
+}
+
+mirror_gre_topo_destroy()
+{
+ mirror_gre_topo_switch_destroy
+
+ mirror_gre_topo_h3_destroy
+ mirror_topo_h2_destroy
+ mirror_topo_h1_destroy
+}
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_vlan.sh b/tools/testing/selftests/net/forwarding/mirror_gre_vlan.sh
new file mode 100755
index 000000000..88cecdb9a
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_vlan.sh
@@ -0,0 +1,92 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# Test for "tc action mirred egress mirror" that mirrors to a gretap netdevice
+# whose underlay route points at a vlan device.
+
+ALL_TESTS="
+ test_gretap
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ swp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ vrf_prepare
+ mirror_gre_topo_create
+
+ ip link add name $swp3.555 link $swp3 type vlan id 555
+ ip address add dev $swp3.555 192.0.2.129/32
+ ip address add dev $swp3.555 2001:db8:2::1/128
+ ip link set dev $swp3.555 up
+
+ ip route add 192.0.2.130/32 dev $swp3.555
+ ip -6 route add 2001:db8:2::2/128 dev $swp3.555
+
+ ip link add name $h3.555 link $h3 type vlan id 555
+ ip link set dev $h3.555 master v$h3
+ ip address add dev $h3.555 192.0.2.130/28
+ ip address add dev $h3.555 2001:db8:2::2/64
+ ip link set dev $h3.555 up
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ ip link del dev $h3.555
+ ip link del dev $swp3.555
+
+ mirror_gre_topo_destroy
+ vrf_cleanup
+}
+
+test_gretap()
+{
+ full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap"
+ full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap"
+}
+
+test_all()
+{
+ slow_path_trap_install $swp1 ingress
+ slow_path_trap_install $swp1 egress
+
+ tests_run
+
+ slow_path_trap_uninstall $swp1 egress
+ slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+ echo "WARN: Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_vlan_bridge_1q.sh b/tools/testing/selftests/net/forwarding/mirror_gre_vlan_bridge_1q.sh
new file mode 100755
index 000000000..880e3ab9d
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_vlan_bridge_1q.sh
@@ -0,0 +1,347 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test for "tc action mirred egress mirror" when the underlay route points at a
+# vlan device on top of a bridge device with vlan filtering (802.1q).
+#
+# +---------------------+ +---------------------+
+# | H1 | | H2 |
+# | + $h1 | | $h2 + |
+# | | 192.0.2.1/28 | | 192.0.2.2/28 | |
+# +-----|---------------+ +---------------|-----+
+# | |
+# +-----|-------------------------------------------------------------|-----+
+# | SW o--> mirred egress mirror dev {gt4,gt6} | |
+# | | | |
+# | +---|-------------------------------------------------------------|---+ |
+# | | + $swp1 br1 $swp2 + | |
+# | | | |
+# | | + $swp3 | |
+# | +---|-----------------------------------------------------------------+ |
+# | | | |
+# | | + br1.555 |
+# | | 192.0.2.130/28 |
+# | | 2001:db8:2::2/64 |
+# | | |
+# | | + gt6 (ip6gretap) + gt4 (gretap) |
+# | | : loc=2001:db8:2::1 : loc=192.0.2.129 |
+# | | : rem=2001:db8:2::2 : rem=192.0.2.130 |
+# | | : ttl=100 : ttl=100 |
+# | | : tos=inherit : tos=inherit |
+# | | : : |
+# +-----|---------------------:----------------------:----------------------+
+# | : :
+# +-----|---------------------:----------------------:----------------------+
+# | H3 + $h3 + h3-gt6 (ip6gretap) + h3-gt4 (gretap) |
+# | | loc=2001:db8:2::2 loc=192.0.2.130 |
+# | + $h3.555 rem=2001:db8:2::1 rem=192.0.2.129 |
+# | 192.0.2.130/28 ttl=100 ttl=100 |
+# | 2001:db8:2::2/64 tos=inherit tos=inherit |
+# | |
+# +-------------------------------------------------------------------------+
+
+ALL_TESTS="
+ test_gretap
+ test_ip6gretap
+ test_gretap_forbidden_cpu
+ test_ip6gretap_forbidden_cpu
+ test_gretap_forbidden_egress
+ test_ip6gretap_forbidden_egress
+ test_gretap_untagged_egress
+ test_ip6gretap_untagged_egress
+ test_gretap_fdb_roaming
+ test_ip6gretap_fdb_roaming
+ test_gretap_stp
+ test_ip6gretap_stp
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+require_command $ARPING
+
+h3_addr_add_del()
+{
+ local add_del=$1; shift
+ local dev=$1; shift
+
+ ip addr $add_del dev $dev 192.0.2.130/28
+ ip addr $add_del dev $dev 2001:db8:2::2/64
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ swp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ # gt4's remote address is at $h3.555, not $h3. Thus the packets arriving
+ # directly to $h3 for test_gretap_untagged_egress() are rejected by
+ # rp_filter and the test spuriously fails.
+ sysctl_set net.ipv4.conf.all.rp_filter 0
+ sysctl_set net.ipv4.conf.$h3.rp_filter 0
+
+ vrf_prepare
+ mirror_gre_topo_create
+
+ vlan_create br1 555 "" 192.0.2.129/32 2001:db8:2::1/128
+ bridge vlan add dev br1 vid 555 self
+ ip route rep 192.0.2.130/32 dev br1.555
+ ip -6 route rep 2001:db8:2::2/128 dev br1.555
+
+ vlan_create $h3 555 v$h3
+ h3_addr_add_del add $h3.555
+
+ ip link set dev $swp3 master br1
+ bridge vlan add dev $swp3 vid 555
+ bridge vlan add dev $swp2 vid 555
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ ip link set dev $swp2 nomaster
+ ip link set dev $swp3 nomaster
+
+ h3_addr_add_del del $h3.555
+ vlan_destroy $h3 555
+ vlan_destroy br1 555
+
+ mirror_gre_topo_destroy
+ vrf_cleanup
+
+ sysctl_restore net.ipv4.conf.$h3.rp_filter
+ sysctl_restore net.ipv4.conf.all.rp_filter
+}
+
+test_vlan_match()
+{
+ local tundev=$1; shift
+ local vlan_match=$1; shift
+ local what=$1; shift
+
+ full_test_span_gre_dir_vlan $tundev ingress "$vlan_match" 8 0 "$what"
+ full_test_span_gre_dir_vlan $tundev egress "$vlan_match" 0 8 "$what"
+}
+
+test_gretap()
+{
+ test_vlan_match gt4 'skip_hw vlan_id 555 vlan_ethtype ip' \
+ "mirror to gretap"
+}
+
+test_ip6gretap()
+{
+ test_vlan_match gt6 'skip_hw vlan_id 555 vlan_ethtype ip' \
+ "mirror to ip6gretap"
+}
+
+test_span_gre_forbidden_cpu()
+{
+ local tundev=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ # Run the pass-test first, to prime neighbor table.
+ mirror_install $swp1 ingress $tundev "matchall $tcflags"
+ quick_test_span_gre_dir $tundev ingress
+
+ # Now forbid the VLAN at the bridge and see it fail.
+ bridge vlan del dev br1 vid 555 self
+ sleep 1
+ fail_test_span_gre_dir $tundev ingress
+
+ bridge vlan add dev br1 vid 555 self
+ sleep 1
+ quick_test_span_gre_dir $tundev ingress
+
+ mirror_uninstall $swp1 ingress
+
+ log_test "$what: vlan forbidden at a bridge ($tcflags)"
+}
+
+test_gretap_forbidden_cpu()
+{
+ test_span_gre_forbidden_cpu gt4 "mirror to gretap"
+}
+
+test_ip6gretap_forbidden_cpu()
+{
+ test_span_gre_forbidden_cpu gt6 "mirror to ip6gretap"
+}
+
+test_span_gre_forbidden_egress()
+{
+ local tundev=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ mirror_install $swp1 ingress $tundev "matchall $tcflags"
+ quick_test_span_gre_dir $tundev ingress
+
+ bridge vlan del dev $swp3 vid 555
+ sleep 1
+ fail_test_span_gre_dir $tundev ingress
+
+ bridge vlan add dev $swp3 vid 555
+ # Re-prime FDB
+ $ARPING -I br1.555 192.0.2.130 -fqc 1
+ sleep 1
+ quick_test_span_gre_dir $tundev ingress
+
+ mirror_uninstall $swp1 ingress
+
+ log_test "$what: vlan forbidden at a bridge egress ($tcflags)"
+}
+
+test_gretap_forbidden_egress()
+{
+ test_span_gre_forbidden_egress gt4 "mirror to gretap"
+}
+
+test_ip6gretap_forbidden_egress()
+{
+ test_span_gre_forbidden_egress gt6 "mirror to ip6gretap"
+}
+
+test_span_gre_untagged_egress()
+{
+ local tundev=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ mirror_install $swp1 ingress $tundev "matchall $tcflags"
+
+ quick_test_span_gre_dir $tundev ingress
+ quick_test_span_vlan_dir $h3 555 ingress
+
+ h3_addr_add_del del $h3.555
+ bridge vlan add dev $swp3 vid 555 pvid untagged
+ h3_addr_add_del add $h3
+ sleep 5
+
+ quick_test_span_gre_dir $tundev ingress
+ fail_test_span_vlan_dir $h3 555 ingress
+
+ h3_addr_add_del del $h3
+ bridge vlan add dev $swp3 vid 555
+ h3_addr_add_del add $h3.555
+ sleep 5
+
+ quick_test_span_gre_dir $tundev ingress
+ quick_test_span_vlan_dir $h3 555 ingress
+
+ mirror_uninstall $swp1 ingress
+
+ log_test "$what: vlan untagged at a bridge egress ($tcflags)"
+}
+
+test_gretap_untagged_egress()
+{
+ test_span_gre_untagged_egress gt4 "mirror to gretap"
+}
+
+test_ip6gretap_untagged_egress()
+{
+ test_span_gre_untagged_egress gt6 "mirror to ip6gretap"
+}
+
+test_span_gre_fdb_roaming()
+{
+ local tundev=$1; shift
+ local what=$1; shift
+ local h3mac=$(mac_get $h3)
+
+ RET=0
+
+ mirror_install $swp1 ingress $tundev "matchall $tcflags"
+ quick_test_span_gre_dir $tundev ingress
+
+ while ((RET == 0)); do
+ bridge fdb del dev $swp3 $h3mac vlan 555 master 2>/dev/null
+ bridge fdb add dev $swp2 $h3mac vlan 555 master static
+ sleep 1
+ fail_test_span_gre_dir $tundev ingress
+
+ if ! bridge fdb sh dev $swp2 vlan 555 master \
+ | grep -q $h3mac; then
+ printf "TEST: %-60s [RETRY]\n" \
+ "$what: MAC roaming ($tcflags)"
+ # ARP or ND probably reprimed the FDB while the test
+ # was running. We would get a spurious failure.
+ RET=0
+ continue
+ fi
+ break
+ done
+
+ bridge fdb del dev $swp2 $h3mac vlan 555 master 2>/dev/null
+ # Re-prime FDB
+ $ARPING -I br1.555 192.0.2.130 -fqc 1
+ sleep 1
+ quick_test_span_gre_dir $tundev ingress
+
+ mirror_uninstall $swp1 ingress
+
+ log_test "$what: MAC roaming ($tcflags)"
+}
+
+test_gretap_fdb_roaming()
+{
+ test_span_gre_fdb_roaming gt4 "mirror to gretap"
+}
+
+test_ip6gretap_fdb_roaming()
+{
+ test_span_gre_fdb_roaming gt6 "mirror to ip6gretap"
+}
+
+test_gretap_stp()
+{
+ full_test_span_gre_stp gt4 $swp3 "mirror to gretap"
+}
+
+test_ip6gretap_stp()
+{
+ full_test_span_gre_stp gt6 $swp3 "mirror to ip6gretap"
+}
+
+test_all()
+{
+ slow_path_trap_install $swp1 ingress
+ slow_path_trap_install $swp1 egress
+
+ tests_run
+
+ slow_path_trap_uninstall $swp1 egress
+ slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+ echo "WARN: Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_lib.sh b/tools/testing/selftests/net/forwarding/mirror_lib.sh
new file mode 100644
index 000000000..6406cd76a
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_lib.sh
@@ -0,0 +1,148 @@
+# SPDX-License-Identifier: GPL-2.0
+
+mirror_install()
+{
+ local from_dev=$1; shift
+ local direction=$1; shift
+ local to_dev=$1; shift
+ local filter=$1; shift
+
+ tc filter add dev $from_dev $direction \
+ pref 1000 $filter \
+ action mirred egress mirror dev $to_dev
+}
+
+mirror_uninstall()
+{
+ local from_dev=$1; shift
+ local direction=$1; shift
+
+ tc filter del dev $swp1 $direction pref 1000
+}
+
+is_ipv6()
+{
+ local addr=$1; shift
+
+ [[ -z ${addr//[0-9a-fA-F:]/} ]]
+}
+
+mirror_test()
+{
+ local vrf_name=$1; shift
+ local sip=$1; shift
+ local dip=$1; shift
+ local dev=$1; shift
+ local pref=$1; shift
+ local expect=$1; shift
+
+ if is_ipv6 $dip; then
+ local proto=-6
+ local type="icmp6 type=128" # Echo request.
+ else
+ local proto=
+ local type="icmp echoreq"
+ fi
+
+ local t0=$(tc_rule_stats_get $dev $pref)
+ $MZ $proto $vrf_name ${sip:+-A $sip} -B $dip -a own -b bc -q \
+ -c 10 -d 100msec -t $type
+ sleep 0.5
+ local t1=$(tc_rule_stats_get $dev $pref)
+ local delta=$((t1 - t0))
+ # Tolerate a couple stray extra packets.
+ ((expect <= delta && delta <= expect + 2))
+ check_err $? "Expected to capture $expect packets, got $delta."
+}
+
+do_test_span_dir_ips()
+{
+ local expect=$1; shift
+ local dev=$1; shift
+ local direction=$1; shift
+ local ip1=$1; shift
+ local ip2=$1; shift
+
+ icmp_capture_install $dev
+ mirror_test v$h1 $ip1 $ip2 $dev 100 $expect
+ mirror_test v$h2 $ip2 $ip1 $dev 100 $expect
+ icmp_capture_uninstall $dev
+}
+
+quick_test_span_dir_ips()
+{
+ do_test_span_dir_ips 10 "$@"
+}
+
+fail_test_span_dir_ips()
+{
+ do_test_span_dir_ips 0 "$@"
+}
+
+test_span_dir_ips()
+{
+ local dev=$1; shift
+ local direction=$1; shift
+ local forward_type=$1; shift
+ local backward_type=$1; shift
+ local ip1=$1; shift
+ local ip2=$1; shift
+
+ quick_test_span_dir_ips "$dev" "$direction" "$ip1" "$ip2"
+
+ icmp_capture_install $dev "type $forward_type"
+ mirror_test v$h1 $ip1 $ip2 $dev 100 10
+ icmp_capture_uninstall $dev
+
+ icmp_capture_install $dev "type $backward_type"
+ mirror_test v$h2 $ip2 $ip1 $dev 100 10
+ icmp_capture_uninstall $dev
+}
+
+fail_test_span_dir()
+{
+ fail_test_span_dir_ips "$@" 192.0.2.1 192.0.2.2
+}
+
+test_span_dir()
+{
+ test_span_dir_ips "$@" 192.0.2.1 192.0.2.2
+}
+
+do_test_span_vlan_dir_ips()
+{
+ local expect=$1; shift
+ local dev=$1; shift
+ local vid=$1; shift
+ local direction=$1; shift
+ local ip1=$1; shift
+ local ip2=$1; shift
+
+ # Install the capture as skip_hw to avoid double-counting of packets.
+ # The traffic is meant for local box anyway, so will be trapped to
+ # kernel.
+ vlan_capture_install $dev "skip_hw vlan_id $vid vlan_ethtype ip"
+ mirror_test v$h1 $ip1 $ip2 $dev 100 $expect
+ mirror_test v$h2 $ip2 $ip1 $dev 100 $expect
+ vlan_capture_uninstall $dev
+}
+
+quick_test_span_vlan_dir_ips()
+{
+ do_test_span_vlan_dir_ips 10 "$@"
+}
+
+fail_test_span_vlan_dir_ips()
+{
+ do_test_span_vlan_dir_ips 0 "$@"
+}
+
+quick_test_span_vlan_dir()
+{
+ quick_test_span_vlan_dir_ips "$@" 192.0.2.1 192.0.2.2
+}
+
+fail_test_span_vlan_dir()
+{
+ fail_test_span_vlan_dir_ips "$@" 192.0.2.1 192.0.2.2
+}
diff --git a/tools/testing/selftests/net/forwarding/mirror_topo_lib.sh b/tools/testing/selftests/net/forwarding/mirror_topo_lib.sh
new file mode 100644
index 000000000..04979e596
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_topo_lib.sh
@@ -0,0 +1,101 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# This is the standard topology for testing mirroring. The tests that use it
+# tweak it in one way or another--typically add more devices to the topology.
+#
+# +---------------------+ +---------------------+
+# | H1 | | H2 |
+# | + $h1 | | $h2 + |
+# | | 192.0.2.1/28 | | 192.0.2.2/28 | |
+# +-----|---------------+ +---------------|-----+
+# | |
+# +-----|-------------------------------------------------------------|-----+
+# | SW o--> mirror | |
+# | +---|-------------------------------------------------------------|---+ |
+# | | + $swp1 BR $swp2 + | |
+# | +---------------------------------------------------------------------+ |
+# | |
+# | + $swp3 |
+# +-----|-------------------------------------------------------------------+
+# |
+# +-----|-------------------------------------------------------------------+
+# | H3 + $h3 |
+# | |
+# +-------------------------------------------------------------------------+
+
+mirror_topo_h1_create()
+{
+ simple_if_init $h1 192.0.2.1/28
+}
+
+mirror_topo_h1_destroy()
+{
+ simple_if_fini $h1 192.0.2.1/28
+}
+
+mirror_topo_h2_create()
+{
+ simple_if_init $h2 192.0.2.2/28
+}
+
+mirror_topo_h2_destroy()
+{
+ simple_if_fini $h2 192.0.2.2/28
+}
+
+mirror_topo_h3_create()
+{
+ simple_if_init $h3
+ tc qdisc add dev $h3 clsact
+}
+
+mirror_topo_h3_destroy()
+{
+ tc qdisc del dev $h3 clsact
+ simple_if_fini $h3
+}
+
+mirror_topo_switch_create()
+{
+ ip link set dev $swp3 up
+
+ ip link add name br1 type bridge vlan_filtering 1
+ ip link set dev br1 up
+
+ ip link set dev $swp1 master br1
+ ip link set dev $swp1 up
+
+ ip link set dev $swp2 master br1
+ ip link set dev $swp2 up
+
+ tc qdisc add dev $swp1 clsact
+}
+
+mirror_topo_switch_destroy()
+{
+ tc qdisc del dev $swp1 clsact
+
+ ip link set dev $swp1 down
+ ip link set dev $swp2 down
+ ip link del dev br1
+
+ ip link set dev $swp3 down
+}
+
+mirror_topo_create()
+{
+ mirror_topo_h1_create
+ mirror_topo_h2_create
+ mirror_topo_h3_create
+
+ mirror_topo_switch_create
+}
+
+mirror_topo_destroy()
+{
+ mirror_topo_switch_destroy
+
+ mirror_topo_h3_destroy
+ mirror_topo_h2_destroy
+ mirror_topo_h1_destroy
+}
diff --git a/tools/testing/selftests/net/forwarding/mirror_vlan.sh b/tools/testing/selftests/net/forwarding/mirror_vlan.sh
new file mode 100755
index 000000000..9ab2ce77b
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_vlan.sh
@@ -0,0 +1,131 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing mirroring. See mirror_topo_lib.sh
+# for more details.
+#
+# Test for "tc action mirred egress mirror" that mirrors to a vlan device.
+
+ALL_TESTS="
+ test_vlan
+ test_tagged_vlan
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_topo_lib.sh
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ swp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ vrf_prepare
+ mirror_topo_create
+
+ vlan_create $swp3 555
+
+ vlan_create $h3 555 v$h3
+ matchall_sink_create $h3.555
+
+ vlan_create $h1 111 v$h1 192.0.2.17/28
+ bridge vlan add dev $swp1 vid 111
+
+ vlan_create $h2 111 v$h2 192.0.2.18/28
+ bridge vlan add dev $swp2 vid 111
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ vlan_destroy $h2 111
+ vlan_destroy $h1 111
+ vlan_destroy $h3 555
+ vlan_destroy $swp3 555
+
+ mirror_topo_destroy
+ vrf_cleanup
+}
+
+test_vlan_dir()
+{
+ local direction=$1; shift
+ local forward_type=$1; shift
+ local backward_type=$1; shift
+
+ RET=0
+
+ mirror_install $swp1 $direction $swp3.555 "matchall $tcflags"
+ test_span_dir "$h3.555" "$direction" "$forward_type" "$backward_type"
+ mirror_uninstall $swp1 $direction
+
+ log_test "$direction mirror to vlan ($tcflags)"
+}
+
+test_vlan()
+{
+ test_vlan_dir ingress 8 0
+ test_vlan_dir egress 0 8
+}
+
+test_tagged_vlan_dir()
+{
+ local direction=$1; shift
+ local forward_type=$1; shift
+ local backward_type=$1; shift
+
+ RET=0
+
+ mirror_install $swp1 $direction $swp3.555 "matchall $tcflags"
+ do_test_span_vlan_dir_ips 10 "$h3.555" 111 "$direction" \
+ 192.0.2.17 192.0.2.18
+ do_test_span_vlan_dir_ips 0 "$h3.555" 555 "$direction" \
+ 192.0.2.17 192.0.2.18
+ mirror_uninstall $swp1 $direction
+
+ log_test "$direction mirror tagged to vlan ($tcflags)"
+}
+
+test_tagged_vlan()
+{
+ test_tagged_vlan_dir ingress 8 0
+ test_tagged_vlan_dir egress 0 8
+}
+
+test_all()
+{
+ slow_path_trap_install $swp1 ingress
+ slow_path_trap_install $swp1 egress
+ trap_install $h3 ingress
+
+ tests_run
+
+ trap_uninstall $h3 ingress
+ slow_path_trap_uninstall $swp1 egress
+ slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+ echo "WARN: Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/pedit_dsfield.sh b/tools/testing/selftests/net/forwarding/pedit_dsfield.sh
new file mode 100755
index 000000000..64fbd211d
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/pedit_dsfield.sh
@@ -0,0 +1,311 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test sends traffic from H1 to H2. Either on ingress of $swp1, or on
+# egress of $swp2, the traffic is acted upon by a pedit action. An ingress
+# filter installed on $h2 verifies that the packet looks like expected.
+#
+# +----------------------+ +----------------------+
+# | H1 | | H2 |
+# | + $h1 | | $h2 + |
+# | | 192.0.2.1/28 | | 192.0.2.2/28 | |
+# +----|-----------------+ +----------------|-----+
+# | |
+# +----|----------------------------------------------------------------|-----+
+# | SW | | |
+# | +-|----------------------------------------------------------------|-+ |
+# | | + $swp1 BR $swp2 + | |
+# | +--------------------------------------------------------------------+ |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+ ping_ipv4
+ ping_ipv6
+ test_ip_dsfield
+ test_ip_dscp
+ test_ip_ecn
+ test_ip_dscp_ecn
+ test_ip6_dsfield
+ test_ip6_dscp
+ test_ip6_ecn
+"
+
+NUM_NETIFS=4
+source lib.sh
+source tc_common.sh
+
+: ${HIT_TIMEOUT:=2000} # ms
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+ simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.2/28 2001:db8:1::2/64
+ tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+ tc qdisc del dev $h2 clsact
+ simple_if_fini $h2 192.0.2.2/28 2001:db8:1::2/64
+}
+
+switch_create()
+{
+ ip link add name br1 up type bridge vlan_filtering 1
+ ip link set dev $swp1 master br1
+ ip link set dev $swp1 up
+ ip link set dev $swp2 master br1
+ ip link set dev $swp2 up
+
+ tc qdisc add dev $swp1 clsact
+ tc qdisc add dev $swp2 clsact
+}
+
+switch_destroy()
+{
+ tc qdisc del dev $swp2 clsact
+ tc qdisc del dev $swp1 clsact
+
+ ip link set dev $swp2 down
+ ip link set dev $swp2 nomaster
+ ip link set dev $swp1 down
+ ip link set dev $swp1 nomaster
+ ip link del dev br1
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ h2mac=$(mac_get $h2)
+
+ vrf_prepare
+ h1_create
+ h2_create
+ switch_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ switch_destroy
+ h2_destroy
+ h1_destroy
+ vrf_cleanup
+}
+
+ping_ipv4()
+{
+ ping_test $h1 192.0.2.2
+}
+
+ping_ipv6()
+{
+ ping6_test $h1 2001:db8:1::2
+}
+
+do_test_pedit_dsfield_common()
+{
+ local pedit_locus=$1; shift
+ local pedit_action=$1; shift
+ local mz_flags=$1; shift
+
+ RET=0
+
+ # TOS 125: DSCP 31, ECN 1. Used for testing that the relevant part is
+ # overwritten when zero is selected.
+ $MZ $mz_flags $h1 -c 10 -d 20msec -p 100 \
+ -a own -b $h2mac -q -t tcp tos=0x7d,sp=54321,dp=12345
+
+ local pkts
+ pkts=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= 10" \
+ tc_rule_handle_stats_get "dev $h2 ingress" 101)
+ check_err $? "Expected to get 10 packets on test probe, but got $pkts."
+
+ pkts=$(tc_rule_handle_stats_get "$pedit_locus" 101)
+ ((pkts >= 10))
+ check_err $? "Expected to get 10 packets on pedit rule, but got $pkts."
+
+ log_test "$pedit_locus pedit $pedit_action"
+}
+
+do_test_pedit_dsfield()
+{
+ local pedit_locus=$1; shift
+ local pedit_action=$1; shift
+ local match_prot=$1; shift
+ local match_flower=$1; shift
+ local mz_flags=$1; shift
+ local saddr=$1; shift
+ local daddr=$1; shift
+
+ tc filter add $pedit_locus handle 101 pref 1 \
+ flower action pedit ex munge $pedit_action
+ tc filter add dev $h2 ingress handle 101 pref 1 prot $match_prot \
+ flower skip_hw $match_flower action pass
+
+ do_test_pedit_dsfield_common "$pedit_locus" "$pedit_action" "$mz_flags"
+
+ tc filter del dev $h2 ingress pref 1
+ tc filter del $pedit_locus pref 1
+}
+
+do_test_ip_dsfield()
+{
+ local locus=$1; shift
+ local dsfield
+
+ for dsfield in 0 1 2 3 128 252 253 254 255; do
+ do_test_pedit_dsfield "$locus" \
+ "ip dsfield set $dsfield" \
+ ip "ip_tos $dsfield" \
+ "-A 192.0.2.1 -B 192.0.2.2"
+ done
+}
+
+test_ip_dsfield()
+{
+ do_test_ip_dsfield "dev $swp1 ingress"
+ do_test_ip_dsfield "dev $swp2 egress"
+}
+
+do_test_ip_dscp()
+{
+ local locus=$1; shift
+ local dscp
+
+ for dscp in 0 1 2 3 32 61 62 63; do
+ do_test_pedit_dsfield "$locus" \
+ "ip dsfield set $((dscp << 2)) retain 0xfc" \
+ ip "ip_tos $(((dscp << 2) | 1))" \
+ "-A 192.0.2.1 -B 192.0.2.2"
+ done
+}
+
+test_ip_dscp()
+{
+ do_test_ip_dscp "dev $swp1 ingress"
+ do_test_ip_dscp "dev $swp2 egress"
+}
+
+do_test_ip_ecn()
+{
+ local locus=$1; shift
+ local ecn
+
+ for ecn in 0 1 2 3; do
+ do_test_pedit_dsfield "$locus" \
+ "ip dsfield set $ecn retain 0x03" \
+ ip "ip_tos $((124 | $ecn))" \
+ "-A 192.0.2.1 -B 192.0.2.2"
+ done
+}
+
+test_ip_ecn()
+{
+ do_test_ip_ecn "dev $swp1 ingress"
+ do_test_ip_ecn "dev $swp2 egress"
+}
+
+do_test_ip_dscp_ecn()
+{
+ local locus=$1; shift
+
+ tc filter add $locus handle 101 pref 1 \
+ flower action pedit ex munge ip dsfield set 124 retain 0xfc \
+ action pedit ex munge ip dsfield set 1 retain 0x03
+ tc filter add dev $h2 ingress handle 101 pref 1 prot ip \
+ flower skip_hw ip_tos 125 action pass
+
+ do_test_pedit_dsfield_common "$locus" "set DSCP + set ECN" \
+ "-A 192.0.2.1 -B 192.0.2.2"
+
+ tc filter del dev $h2 ingress pref 1
+ tc filter del $locus pref 1
+}
+
+test_ip_dscp_ecn()
+{
+ do_test_ip_dscp_ecn "dev $swp1 ingress"
+ do_test_ip_dscp_ecn "dev $swp2 egress"
+}
+
+do_test_ip6_dsfield()
+{
+ local locus=$1; shift
+ local dsfield
+
+ for dsfield in 0 1 2 3 128 252 253 254 255; do
+ do_test_pedit_dsfield "$locus" \
+ "ip6 traffic_class set $dsfield" \
+ ipv6 "ip_tos $dsfield" \
+ "-6 -A 2001:db8:1::1 -B 2001:db8:1::2"
+ done
+}
+
+test_ip6_dsfield()
+{
+ do_test_ip6_dsfield "dev $swp1 ingress"
+ do_test_ip6_dsfield "dev $swp2 egress"
+}
+
+do_test_ip6_dscp()
+{
+ local locus=$1; shift
+ local dscp
+
+ for dscp in 0 1 2 3 32 61 62 63; do
+ do_test_pedit_dsfield "$locus" \
+ "ip6 traffic_class set $((dscp << 2)) retain 0xfc" \
+ ipv6 "ip_tos $(((dscp << 2) | 1))" \
+ "-6 -A 2001:db8:1::1 -B 2001:db8:1::2"
+ done
+}
+
+test_ip6_dscp()
+{
+ do_test_ip6_dscp "dev $swp1 ingress"
+ do_test_ip6_dscp "dev $swp2 egress"
+}
+
+do_test_ip6_ecn()
+{
+ local locus=$1; shift
+ local ecn
+
+ for ecn in 0 1 2 3; do
+ do_test_pedit_dsfield "$locus" \
+ "ip6 traffic_class set $ecn retain 0x3" \
+ ipv6 "ip_tos $((124 | $ecn))" \
+ "-6 -A 2001:db8:1::1 -B 2001:db8:1::2"
+ done
+}
+
+test_ip6_ecn()
+{
+ do_test_ip6_ecn "dev $swp1 ingress"
+ do_test_ip6_ecn "dev $swp2 egress"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/pedit_l4port.sh b/tools/testing/selftests/net/forwarding/pedit_l4port.sh
new file mode 100755
index 000000000..10e594c55
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/pedit_l4port.sh
@@ -0,0 +1,200 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test sends traffic from H1 to H2. Either on ingress of $swp1, or on egress of $swp2, the
+# traffic is acted upon by a pedit action. An ingress filter installed on $h2 verifies that the
+# packet looks like expected.
+#
+# +----------------------+ +----------------------+
+# | H1 | | H2 |
+# | + $h1 | | $h2 + |
+# | | 192.0.2.1/28 | | 192.0.2.2/28 | |
+# +----|-----------------+ +----------------|-----+
+# | |
+# +----|----------------------------------------------------------------|-----+
+# | SW | | |
+# | +-|----------------------------------------------------------------|-+ |
+# | | + $swp1 BR $swp2 + | |
+# | +--------------------------------------------------------------------+ |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+ ping_ipv4
+ test_udp_sport
+ test_udp_dport
+ test_tcp_sport
+ test_tcp_dport
+"
+
+NUM_NETIFS=4
+source lib.sh
+source tc_common.sh
+
+: ${HIT_TIMEOUT:=2000} # ms
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+ simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.2/28 2001:db8:1::2/64
+ tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+ tc qdisc del dev $h2 clsact
+ simple_if_fini $h2 192.0.2.2/28 2001:db8:1::2/64
+}
+
+switch_create()
+{
+ ip link add name br1 up type bridge vlan_filtering 1
+ ip link set dev $swp1 master br1
+ ip link set dev $swp1 up
+ ip link set dev $swp2 master br1
+ ip link set dev $swp2 up
+
+ tc qdisc add dev $swp1 clsact
+ tc qdisc add dev $swp2 clsact
+}
+
+switch_destroy()
+{
+ tc qdisc del dev $swp2 clsact
+ tc qdisc del dev $swp1 clsact
+
+ ip link set dev $swp2 down
+ ip link set dev $swp2 nomaster
+ ip link set dev $swp1 down
+ ip link set dev $swp1 nomaster
+ ip link del dev br1
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ h2mac=$(mac_get $h2)
+
+ vrf_prepare
+ h1_create
+ h2_create
+ switch_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ switch_destroy
+ h2_destroy
+ h1_destroy
+ vrf_cleanup
+}
+
+ping_ipv4()
+{
+ ping_test $h1 192.0.2.2
+}
+
+ping_ipv6()
+{
+ ping6_test $h1 2001:db8:1::2
+}
+
+do_test_pedit_l4port_one()
+{
+ local pedit_locus=$1; shift
+ local pedit_prot=$1; shift
+ local pedit_action=$1; shift
+ local match_prot=$1; shift
+ local match_flower=$1; shift
+ local mz_flags=$1; shift
+ local saddr=$1; shift
+ local daddr=$1; shift
+
+ tc filter add $pedit_locus handle 101 pref 1 \
+ flower action pedit ex munge $pedit_action
+ tc filter add dev $h2 ingress handle 101 pref 1 prot $match_prot \
+ flower skip_hw $match_flower action pass
+
+ RET=0
+
+ $MZ $mz_flags $h1 -c 10 -d 20msec -p 100 \
+ -a own -b $h2mac -q -t $pedit_prot sp=54321,dp=12345
+
+ local pkts
+ pkts=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= 10" \
+ tc_rule_handle_stats_get "dev $h2 ingress" 101)
+ check_err $? "Expected to get 10 packets, but got $pkts."
+
+ pkts=$(tc_rule_handle_stats_get "$pedit_locus" 101)
+ ((pkts >= 10))
+ check_err $? "Expected to get 10 packets on pedit rule, but got $pkts."
+
+ log_test "$pedit_locus pedit $pedit_action"
+
+ tc filter del dev $h2 ingress pref 1
+ tc filter del $pedit_locus pref 1
+}
+
+do_test_pedit_l4port()
+{
+ local locus=$1; shift
+ local prot=$1; shift
+ local pedit_port=$1; shift
+ local flower_port=$1; shift
+ local port
+
+ for port in 1 11111 65535; do
+ do_test_pedit_l4port_one "$locus" "$prot" \
+ "$prot $pedit_port set $port" \
+ ip "ip_proto $prot $flower_port $port" \
+ "-A 192.0.2.1 -B 192.0.2.2"
+ done
+}
+
+test_udp_sport()
+{
+ do_test_pedit_l4port "dev $swp1 ingress" udp sport src_port
+ do_test_pedit_l4port "dev $swp2 egress" udp sport src_port
+}
+
+test_udp_dport()
+{
+ do_test_pedit_l4port "dev $swp1 ingress" udp dport dst_port
+ do_test_pedit_l4port "dev $swp2 egress" udp dport dst_port
+}
+
+test_tcp_sport()
+{
+ do_test_pedit_l4port "dev $swp1 ingress" tcp sport src_port
+ do_test_pedit_l4port "dev $swp2 egress" tcp sport src_port
+}
+
+test_tcp_dport()
+{
+ do_test_pedit_l4port "dev $swp1 ingress" tcp dport dst_port
+ do_test_pedit_l4port "dev $swp2 egress" tcp dport dst_port
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router.sh b/tools/testing/selftests/net/forwarding/router.sh
new file mode 100755
index 000000000..057f91b05
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router.sh
@@ -0,0 +1,322 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+ ping_ipv4
+ ping_ipv6
+ sip_in_class_e
+ mc_mac_mismatch
+ ipv4_sip_equal_dip
+ ipv6_sip_equal_dip
+ ipv4_dip_link_local
+"
+
+NUM_NETIFS=4
+source lib.sh
+source tc_common.sh
+
+require_command $MCD
+require_command $MC_CLI
+table_name=selftests
+
+h1_create()
+{
+ vrf_create "vrf-h1"
+ ip link set dev $h1 master vrf-h1
+
+ ip link set dev vrf-h1 up
+ ip link set dev $h1 up
+
+ ip address add 192.0.2.2/24 dev $h1
+ ip address add 2001:db8:1::2/64 dev $h1
+
+ ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.1
+ ip route add 2001:db8:2::/64 vrf vrf-h1 nexthop via 2001:db8:1::1
+}
+
+h1_destroy()
+{
+ ip route del 2001:db8:2::/64 vrf vrf-h1
+ ip route del 198.51.100.0/24 vrf vrf-h1
+
+ ip address del 2001:db8:1::2/64 dev $h1
+ ip address del 192.0.2.2/24 dev $h1
+
+ ip link set dev $h1 down
+ vrf_destroy "vrf-h1"
+}
+
+h2_create()
+{
+ vrf_create "vrf-h2"
+ ip link set dev $h2 master vrf-h2
+
+ ip link set dev vrf-h2 up
+ ip link set dev $h2 up
+
+ ip address add 198.51.100.2/24 dev $h2
+ ip address add 2001:db8:2::2/64 dev $h2
+
+ ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.1
+ ip route add 2001:db8:1::/64 vrf vrf-h2 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+ ip route del 2001:db8:1::/64 vrf vrf-h2
+ ip route del 192.0.2.0/24 vrf vrf-h2
+
+ ip address del 2001:db8:2::2/64 dev $h2
+ ip address del 198.51.100.2/24 dev $h2
+
+ ip link set dev $h2 down
+ vrf_destroy "vrf-h2"
+}
+
+router_create()
+{
+ ip link set dev $rp1 up
+ ip link set dev $rp2 up
+
+ tc qdisc add dev $rp2 clsact
+
+ ip address add 192.0.2.1/24 dev $rp1
+ ip address add 2001:db8:1::1/64 dev $rp1
+
+ ip address add 198.51.100.1/24 dev $rp2
+ ip address add 2001:db8:2::1/64 dev $rp2
+}
+
+router_destroy()
+{
+ ip address del 2001:db8:2::1/64 dev $rp2
+ ip address del 198.51.100.1/24 dev $rp2
+
+ ip address del 2001:db8:1::1/64 dev $rp1
+ ip address del 192.0.2.1/24 dev $rp1
+
+ tc qdisc del dev $rp2 clsact
+
+ ip link set dev $rp2 down
+ ip link set dev $rp1 down
+}
+
+start_mcd()
+{
+ SMCROUTEDIR="$(mktemp -d)"
+
+ for ((i = 1; i <= $NUM_NETIFS; ++i)); do
+ echo "phyint ${NETIFS[p$i]} enable" >> \
+ $SMCROUTEDIR/$table_name.conf
+ done
+
+ $MCD -N -I $table_name -f $SMCROUTEDIR/$table_name.conf \
+ -P $SMCROUTEDIR/$table_name.pid
+}
+
+kill_mcd()
+{
+ pkill $MCD
+ rm -rf $SMCROUTEDIR
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ rp1=${NETIFS[p2]}
+
+ rp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ rp1mac=$(mac_get $rp1)
+
+ start_mcd
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+
+ router_create
+
+ forwarding_enable
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ forwarding_restore
+
+ router_destroy
+
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+
+ kill_mcd
+}
+
+ping_ipv4()
+{
+ ping_test $h1 198.51.100.2
+}
+
+ping_ipv6()
+{
+ ping6_test $h1 2001:db8:2::2
+}
+
+sip_in_class_e()
+{
+ RET=0
+
+ # Disable rpfilter to prevent packets to be dropped because of it.
+ sysctl_set net.ipv4.conf.all.rp_filter 0
+ sysctl_set net.ipv4.conf.$rp1.rp_filter 0
+
+ tc filter add dev $rp2 egress protocol ip pref 1 handle 101 \
+ flower src_ip 240.0.0.1 ip_proto udp action pass
+
+ $MZ $h1 -t udp "sp=54321,dp=12345" -c 5 -d 1msec \
+ -A 240.0.0.1 -b $rp1mac -B 198.51.100.2 -q
+
+ tc_check_packets "dev $rp2 egress" 101 5
+ check_err $? "Packets were dropped"
+
+ log_test "Source IP in class E"
+
+ tc filter del dev $rp2 egress protocol ip pref 1 handle 101 flower
+ sysctl_restore net.ipv4.conf.$rp1.rp_filter
+ sysctl_restore net.ipv4.conf.all.rp_filter
+}
+
+create_mcast_sg()
+{
+ local if_name=$1; shift
+ local s_addr=$1; shift
+ local mcast=$1; shift
+ local dest_ifs=${@}
+
+ $MC_CLI -I $table_name add $if_name $s_addr $mcast $dest_ifs
+}
+
+delete_mcast_sg()
+{
+ local if_name=$1; shift
+ local s_addr=$1; shift
+ local mcast=$1; shift
+ local dest_ifs=${@}
+
+ $MC_CLI -I $table_name remove $if_name $s_addr $mcast $dest_ifs
+}
+
+__mc_mac_mismatch()
+{
+ local desc=$1; shift
+ local proto=$1; shift
+ local sip=$1; shift
+ local dip=$1; shift
+ local flags=${1:-""}; shift
+ local dmac=01:02:03:04:05:06
+
+ RET=0
+
+ tc filter add dev $rp2 egress protocol $proto pref 1 handle 101 \
+ flower dst_ip $dip action pass
+
+ create_mcast_sg $rp1 $sip $dip $rp2
+
+ $MZ $flags $h1 -t udp "sp=54321,dp=12345" -c 5 -d 1msec -b $dmac \
+ -B $dip -q
+
+ tc_check_packets "dev $rp2 egress" 101 5
+ check_err $? "Packets were dropped"
+
+ log_test "Multicast MAC mismatch: $desc"
+
+ delete_mcast_sg $rp1 $sip $dip $rp2
+ tc filter del dev $rp2 egress protocol $proto pref 1 handle 101 flower
+}
+
+mc_mac_mismatch()
+{
+ __mc_mac_mismatch "IPv4" "ip" 192.0.2.2 225.1.2.3
+ __mc_mac_mismatch "IPv6" "ipv6" 2001:db8:1::2 ff0e::3 "-6"
+}
+
+ipv4_sip_equal_dip()
+{
+ RET=0
+
+ # Disable rpfilter to prevent packets to be dropped because of it.
+ sysctl_set net.ipv4.conf.all.rp_filter 0
+ sysctl_set net.ipv4.conf.$rp1.rp_filter 0
+
+ tc filter add dev $rp2 egress protocol ip pref 1 handle 101 \
+ flower src_ip 198.51.100.2 action pass
+
+ $MZ $h1 -t udp "sp=54321,dp=12345" -c 5 -d 1msec \
+ -A 198.51.100.2 -b $rp1mac -B 198.51.100.2 -q
+
+ tc_check_packets "dev $rp2 egress" 101 5
+ check_err $? "Packets were dropped"
+
+ log_test "Source IP is equal to destination IP: IPv4"
+
+ tc filter del dev $rp2 egress protocol ip pref 1 handle 101 flower
+ sysctl_restore net.ipv4.conf.$rp1.rp_filter
+ sysctl_restore net.ipv4.conf.all.rp_filter
+}
+
+ipv6_sip_equal_dip()
+{
+ RET=0
+
+ tc filter add dev $rp2 egress protocol ipv6 pref 1 handle 101 \
+ flower src_ip 2001:db8:2::2 action pass
+
+ $MZ -6 $h1 -t udp "sp=54321,dp=12345" -c 5 -d 1msec \
+ -A 2001:db8:2::2 -b $rp1mac -B 2001:db8:2::2 -q
+
+ tc_check_packets "dev $rp2 egress" 101 5
+ check_err $? "Packets were dropped"
+
+ log_test "Source IP is equal to destination IP: IPv6"
+
+ tc filter del dev $rp2 egress protocol ipv6 pref 1 handle 101 flower
+}
+
+ipv4_dip_link_local()
+{
+ local dip=169.254.1.1
+
+ RET=0
+
+ tc filter add dev $rp2 egress protocol ip pref 1 handle 101 \
+ flower dst_ip $dip action pass
+
+ ip neigh add 169.254.1.1 lladdr 00:11:22:33:44:55 dev $rp2
+ ip route add 169.254.1.0/24 dev $rp2
+
+ $MZ $h1 -t udp "sp=54321,dp=12345" -c 5 -d 1msec -b $rp1mac -B $dip -q
+
+ tc_check_packets "dev $rp2 egress" 101 5
+ check_err $? "Packets were dropped"
+
+ log_test "IPv4 destination IP is link-local"
+
+ ip route del 169.254.1.0/24 dev $rp2
+ ip neigh del 169.254.1.1 lladdr 00:11:22:33:44:55 dev $rp2
+ tc filter del dev $rp2 egress protocol ip pref 1 handle 101 flower
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_bridge.sh b/tools/testing/selftests/net/forwarding/router_bridge.sh
new file mode 100755
index 000000000..ebc596a27
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_bridge.sh
@@ -0,0 +1,113 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+ ping_ipv4
+ ping_ipv6
+"
+NUM_NETIFS=4
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+ ip -4 route add 192.0.2.128/28 vrf v$h1 nexthop via 192.0.2.2
+ ip -6 route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2
+}
+
+h1_destroy()
+{
+ ip -6 route del 2001:db8:2::/64 vrf v$h1
+ ip -4 route del 192.0.2.128/28 vrf v$h1
+ simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.130/28 2001:db8:2::2/64
+ ip -4 route add 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.129
+ ip -6 route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+ ip -6 route del 2001:db8:1::/64 vrf v$h2
+ ip -4 route del 192.0.2.0/28 vrf v$h2
+ simple_if_fini $h2 192.0.2.130/28 2001:db8:2::2/64
+}
+
+router_create()
+{
+ ip link add name br1 type bridge vlan_filtering 1
+ ip link set dev br1 up
+
+ ip link set dev $swp1 master br1
+ ip link set dev $swp1 up
+ __addr_add_del br1 add 192.0.2.2/28 2001:db8:1::2/64
+
+ ip link set dev $swp2 up
+ __addr_add_del $swp2 add 192.0.2.129/28 2001:db8:2::1/64
+}
+
+router_destroy()
+{
+ __addr_add_del $swp2 del 192.0.2.129/28 2001:db8:2::1/64
+ ip link set dev $swp2 down
+
+ __addr_add_del br1 del 192.0.2.2/28 2001:db8:1::2/64
+ ip link set dev $swp1 down
+ ip link set dev $swp1 nomaster
+
+ ip link del dev br1
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+
+ router_create
+
+ forwarding_enable
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ forwarding_restore
+
+ router_destroy
+
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+ping_ipv4()
+{
+ ping_test $h1 192.0.2.130
+}
+
+ping_ipv6()
+{
+ ping6_test $h1 2001:db8:2::2
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_bridge_vlan.sh b/tools/testing/selftests/net/forwarding/router_bridge_vlan.sh
new file mode 100755
index 000000000..fa6a88c50
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_bridge_vlan.sh
@@ -0,0 +1,132 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+ ping_ipv4
+ ping_ipv6
+ vlan
+"
+NUM_NETIFS=4
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1
+ vlan_create $h1 555 v$h1 192.0.2.1/28 2001:db8:1::1/64
+ ip -4 route add 192.0.2.128/28 vrf v$h1 nexthop via 192.0.2.2
+ ip -6 route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2
+}
+
+h1_destroy()
+{
+ ip -6 route del 2001:db8:2::/64 vrf v$h1
+ ip -4 route del 192.0.2.128/28 vrf v$h1
+ vlan_destroy $h1 555
+ simple_if_fini $h1
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.130/28 2001:db8:2::2/64
+ ip -4 route add 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.129
+ ip -6 route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+ ip -6 route del 2001:db8:1::/64 vrf v$h2
+ ip -4 route del 192.0.2.0/28 vrf v$h2
+ simple_if_fini $h2 192.0.2.130/28 2001:db8:2::2/64
+}
+
+router_create()
+{
+ ip link add name br1 type bridge vlan_filtering 1
+ ip link set dev br1 up
+
+ ip link set dev $swp1 master br1
+ ip link set dev $swp1 up
+
+ bridge vlan add dev br1 vid 555 self pvid untagged
+ bridge vlan add dev $swp1 vid 555
+
+ __addr_add_del br1 add 192.0.2.2/28 2001:db8:1::2/64
+
+ ip link set dev $swp2 up
+ __addr_add_del $swp2 add 192.0.2.129/28 2001:db8:2::1/64
+}
+
+router_destroy()
+{
+ __addr_add_del $swp2 del 192.0.2.129/28 2001:db8:2::1/64
+ ip link set dev $swp2 down
+
+ __addr_add_del br1 del 192.0.2.2/28 2001:db8:1::2/64
+ ip link set dev $swp1 down
+ ip link set dev $swp1 nomaster
+
+ ip link del dev br1
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+
+ router_create
+
+ forwarding_enable
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ forwarding_restore
+
+ router_destroy
+
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+vlan()
+{
+ RET=0
+
+ bridge vlan add dev br1 vid 333 self
+ check_err $? "Can't add a non-PVID VLAN"
+ bridge vlan del dev br1 vid 333 self
+ check_err $? "Can't remove a non-PVID VLAN"
+
+ log_test "vlan"
+}
+
+ping_ipv4()
+{
+ ping_test $h1 192.0.2.130
+}
+
+ping_ipv6()
+{
+ ping6_test $h1 2001:db8:2::2
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_broadcast.sh b/tools/testing/selftests/net/forwarding/router_broadcast.sh
new file mode 100755
index 000000000..4eac0a06f
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_broadcast.sh
@@ -0,0 +1,237 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="ping_ipv4"
+NUM_NETIFS=6
+source lib.sh
+
+h1_create()
+{
+ vrf_create "vrf-h1"
+ ip link set dev $h1 master vrf-h1
+
+ ip link set dev vrf-h1 up
+ ip link set dev $h1 up
+
+ ip address add 192.0.2.2/24 dev $h1
+
+ ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.1
+ ip route add 198.51.200.0/24 vrf vrf-h1 nexthop via 192.0.2.1
+}
+
+h1_destroy()
+{
+ ip route del 198.51.200.0/24 vrf vrf-h1
+ ip route del 198.51.100.0/24 vrf vrf-h1
+
+ ip address del 192.0.2.2/24 dev $h1
+
+ ip link set dev $h1 down
+ vrf_destroy "vrf-h1"
+}
+
+h2_create()
+{
+ vrf_create "vrf-h2"
+ ip link set dev $h2 master vrf-h2
+
+ ip link set dev vrf-h2 up
+ ip link set dev $h2 up
+
+ ip address add 198.51.100.2/24 dev $h2
+
+ ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.1
+ ip route add 198.51.200.0/24 vrf vrf-h2 nexthop via 198.51.100.1
+}
+
+h2_destroy()
+{
+ ip route del 198.51.200.0/24 vrf vrf-h2
+ ip route del 192.0.2.0/24 vrf vrf-h2
+
+ ip address del 198.51.100.2/24 dev $h2
+
+ ip link set dev $h2 down
+ vrf_destroy "vrf-h2"
+}
+
+h3_create()
+{
+ vrf_create "vrf-h3"
+ ip link set dev $h3 master vrf-h3
+
+ ip link set dev vrf-h3 up
+ ip link set dev $h3 up
+
+ ip address add 198.51.200.2/24 dev $h3
+
+ ip route add 192.0.2.0/24 vrf vrf-h3 nexthop via 198.51.200.1
+ ip route add 198.51.100.0/24 vrf vrf-h3 nexthop via 198.51.200.1
+}
+
+h3_destroy()
+{
+ ip route del 198.51.100.0/24 vrf vrf-h3
+ ip route del 192.0.2.0/24 vrf vrf-h3
+
+ ip address del 198.51.200.2/24 dev $h3
+
+ ip link set dev $h3 down
+ vrf_destroy "vrf-h3"
+}
+
+router_create()
+{
+ ip link set dev $rp1 up
+ ip link set dev $rp2 up
+ ip link set dev $rp3 up
+
+ ip address add 192.0.2.1/24 dev $rp1
+
+ ip address add 198.51.100.1/24 dev $rp2
+ ip address add 198.51.200.1/24 dev $rp3
+}
+
+router_destroy()
+{
+ ip address del 198.51.200.1/24 dev $rp3
+ ip address del 198.51.100.1/24 dev $rp2
+
+ ip address del 192.0.2.1/24 dev $rp1
+
+ ip link set dev $rp3 down
+ ip link set dev $rp2 down
+ ip link set dev $rp1 down
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ rp1=${NETIFS[p2]}
+
+ rp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ rp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+ h3_create
+
+ router_create
+
+ forwarding_enable
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ forwarding_restore
+
+ router_destroy
+
+ h3_destroy
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+bc_forwarding_disable()
+{
+ sysctl_set net.ipv4.conf.all.bc_forwarding 0
+ sysctl_set net.ipv4.conf.$rp1.bc_forwarding 0
+ sysctl_set net.ipv4.conf.$rp2.bc_forwarding 0
+}
+
+bc_forwarding_enable()
+{
+ sysctl_set net.ipv4.conf.all.bc_forwarding 1
+ sysctl_set net.ipv4.conf.$rp1.bc_forwarding 1
+ sysctl_set net.ipv4.conf.$rp2.bc_forwarding 1
+}
+
+bc_forwarding_restore()
+{
+ sysctl_restore net.ipv4.conf.$rp2.bc_forwarding
+ sysctl_restore net.ipv4.conf.$rp1.bc_forwarding
+ sysctl_restore net.ipv4.conf.all.bc_forwarding
+}
+
+ping_test_from()
+{
+ local oif=$1
+ local dip=$2
+ local from=$3
+ local fail=${4:-0}
+
+ RET=0
+
+ log_info "ping $dip, expected reply from $from"
+ ip vrf exec $(master_name_get $oif) \
+ $PING -I $oif $dip -c 10 -i 0.1 -w $PING_TIMEOUT -b 2>&1 \
+ | grep "bytes from $from" > /dev/null
+ check_err_fail $fail $?
+}
+
+ping_ipv4()
+{
+ sysctl_set net.ipv4.icmp_echo_ignore_broadcasts 0
+
+ bc_forwarding_disable
+ log_info "bc_forwarding disabled on r1 =>"
+ ping_test_from $h1 198.51.100.255 192.0.2.1
+ log_test "h1 -> net2: reply from r1 (not forwarding)"
+ ping_test_from $h1 198.51.200.255 192.0.2.1
+ log_test "h1 -> net3: reply from r1 (not forwarding)"
+ ping_test_from $h1 192.0.2.255 192.0.2.1
+ log_test "h1 -> net1: reply from r1 (not dropping)"
+ ping_test_from $h1 255.255.255.255 192.0.2.1
+ log_test "h1 -> 255.255.255.255: reply from r1 (not forwarding)"
+
+ ping_test_from $h2 192.0.2.255 198.51.100.1
+ log_test "h2 -> net1: reply from r1 (not forwarding)"
+ ping_test_from $h2 198.51.200.255 198.51.100.1
+ log_test "h2 -> net3: reply from r1 (not forwarding)"
+ ping_test_from $h2 198.51.100.255 198.51.100.1
+ log_test "h2 -> net2: reply from r1 (not dropping)"
+ ping_test_from $h2 255.255.255.255 198.51.100.1
+ log_test "h2 -> 255.255.255.255: reply from r1 (not forwarding)"
+ bc_forwarding_restore
+
+ bc_forwarding_enable
+ log_info "bc_forwarding enabled on r1 =>"
+ ping_test_from $h1 198.51.100.255 198.51.100.2
+ log_test "h1 -> net2: reply from h2 (forwarding)"
+ ping_test_from $h1 198.51.200.255 198.51.200.2
+ log_test "h1 -> net3: reply from h3 (forwarding)"
+ ping_test_from $h1 192.0.2.255 192.0.2.1 1
+ log_test "h1 -> net1: no reply (dropping)"
+ ping_test_from $h1 255.255.255.255 192.0.2.1
+ log_test "h1 -> 255.255.255.255: reply from r1 (not forwarding)"
+
+ ping_test_from $h2 192.0.2.255 192.0.2.2
+ log_test "h2 -> net1: reply from h1 (forwarding)"
+ ping_test_from $h2 198.51.200.255 198.51.200.2
+ log_test "h2 -> net3: reply from h3 (forwarding)"
+ ping_test_from $h2 198.51.100.255 198.51.100.1 1
+ log_test "h2 -> net2: no reply (dropping)"
+ ping_test_from $h2 255.255.255.255 198.51.100.1
+ log_test "h2 -> 255.255.255.255: reply from r1 (not forwarding)"
+ bc_forwarding_restore
+
+ sysctl_restore net.ipv4.icmp_echo_ignore_broadcasts
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_mpath_nh.sh b/tools/testing/selftests/net/forwarding/router_mpath_nh.sh
new file mode 100755
index 000000000..7fcc42bc0
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_mpath_nh.sh
@@ -0,0 +1,359 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="ping_ipv4 ping_ipv6 multipath_test"
+NUM_NETIFS=8
+source lib.sh
+
+h1_create()
+{
+ vrf_create "vrf-h1"
+ ip link set dev $h1 master vrf-h1
+
+ ip link set dev vrf-h1 up
+ ip link set dev $h1 up
+
+ ip address add 192.0.2.2/24 dev $h1
+ ip address add 2001:db8:1::2/64 dev $h1
+
+ ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.1
+ ip route add 2001:db8:2::/64 vrf vrf-h1 nexthop via 2001:db8:1::1
+}
+
+h1_destroy()
+{
+ ip route del 2001:db8:2::/64 vrf vrf-h1
+ ip route del 198.51.100.0/24 vrf vrf-h1
+
+ ip address del 2001:db8:1::2/64 dev $h1
+ ip address del 192.0.2.2/24 dev $h1
+
+ ip link set dev $h1 down
+ vrf_destroy "vrf-h1"
+}
+
+h2_create()
+{
+ vrf_create "vrf-h2"
+ ip link set dev $h2 master vrf-h2
+
+ ip link set dev vrf-h2 up
+ ip link set dev $h2 up
+
+ ip address add 198.51.100.2/24 dev $h2
+ ip address add 2001:db8:2::2/64 dev $h2
+
+ ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.1
+ ip route add 2001:db8:1::/64 vrf vrf-h2 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+ ip route del 2001:db8:1::/64 vrf vrf-h2
+ ip route del 192.0.2.0/24 vrf vrf-h2
+
+ ip address del 2001:db8:2::2/64 dev $h2
+ ip address del 198.51.100.2/24 dev $h2
+
+ ip link set dev $h2 down
+ vrf_destroy "vrf-h2"
+}
+
+router1_create()
+{
+ vrf_create "vrf-r1"
+ ip link set dev $rp11 master vrf-r1
+ ip link set dev $rp12 master vrf-r1
+ ip link set dev $rp13 master vrf-r1
+
+ ip link set dev vrf-r1 up
+ ip link set dev $rp11 up
+ ip link set dev $rp12 up
+ ip link set dev $rp13 up
+
+ ip address add 192.0.2.1/24 dev $rp11
+ ip address add 2001:db8:1::1/64 dev $rp11
+
+ ip address add 169.254.2.12/24 dev $rp12
+ ip address add fe80:2::12/64 dev $rp12
+
+ ip address add 169.254.3.13/24 dev $rp13
+ ip address add fe80:3::13/64 dev $rp13
+}
+
+router1_destroy()
+{
+ ip route del 2001:db8:2::/64 vrf vrf-r1
+ ip route del 198.51.100.0/24 vrf vrf-r1
+
+ ip address del fe80:3::13/64 dev $rp13
+ ip address del 169.254.3.13/24 dev $rp13
+
+ ip address del fe80:2::12/64 dev $rp12
+ ip address del 169.254.2.12/24 dev $rp12
+
+ ip address del 2001:db8:1::1/64 dev $rp11
+ ip address del 192.0.2.1/24 dev $rp11
+
+ ip nexthop del id 103
+ ip nexthop del id 101
+ ip nexthop del id 102
+ ip nexthop del id 106
+ ip nexthop del id 104
+ ip nexthop del id 105
+
+ ip link set dev $rp13 down
+ ip link set dev $rp12 down
+ ip link set dev $rp11 down
+
+ vrf_destroy "vrf-r1"
+}
+
+router2_create()
+{
+ vrf_create "vrf-r2"
+ ip link set dev $rp21 master vrf-r2
+ ip link set dev $rp22 master vrf-r2
+ ip link set dev $rp23 master vrf-r2
+
+ ip link set dev vrf-r2 up
+ ip link set dev $rp21 up
+ ip link set dev $rp22 up
+ ip link set dev $rp23 up
+
+ ip address add 198.51.100.1/24 dev $rp21
+ ip address add 2001:db8:2::1/64 dev $rp21
+
+ ip address add 169.254.2.22/24 dev $rp22
+ ip address add fe80:2::22/64 dev $rp22
+
+ ip address add 169.254.3.23/24 dev $rp23
+ ip address add fe80:3::23/64 dev $rp23
+}
+
+router2_destroy()
+{
+ ip route del 2001:db8:1::/64 vrf vrf-r2
+ ip route del 192.0.2.0/24 vrf vrf-r2
+
+ ip address del fe80:3::23/64 dev $rp23
+ ip address del 169.254.3.23/24 dev $rp23
+
+ ip address del fe80:2::22/64 dev $rp22
+ ip address del 169.254.2.22/24 dev $rp22
+
+ ip address del 2001:db8:2::1/64 dev $rp21
+ ip address del 198.51.100.1/24 dev $rp21
+
+ ip nexthop del id 201
+ ip nexthop del id 202
+ ip nexthop del id 204
+ ip nexthop del id 205
+
+ ip link set dev $rp23 down
+ ip link set dev $rp22 down
+ ip link set dev $rp21 down
+
+ vrf_destroy "vrf-r2"
+}
+
+routing_nh_obj()
+{
+ ip nexthop add id 101 via 169.254.2.22 dev $rp12
+ ip nexthop add id 102 via 169.254.3.23 dev $rp13
+ ip nexthop add id 103 group 101/102
+ ip route add 198.51.100.0/24 vrf vrf-r1 nhid 103
+
+ ip nexthop add id 104 via fe80:2::22 dev $rp12
+ ip nexthop add id 105 via fe80:3::23 dev $rp13
+ ip nexthop add id 106 group 104/105
+ ip route add 2001:db8:2::/64 vrf vrf-r1 nhid 106
+
+ ip nexthop add id 201 via 169.254.2.12 dev $rp22
+ ip nexthop add id 202 via 169.254.3.13 dev $rp23
+ ip nexthop add id 203 group 201/202
+ ip route add 192.0.2.0/24 vrf vrf-r2 nhid 203
+
+ ip nexthop add id 204 via fe80:2::12 dev $rp22
+ ip nexthop add id 205 via fe80:3::13 dev $rp23
+ ip nexthop add id 206 group 204/205
+ ip route add 2001:db8:1::/64 vrf vrf-r2 nhid 206
+}
+
+multipath4_test()
+{
+ local desc="$1"
+ local weight_rp12=$2
+ local weight_rp13=$3
+ local t0_rp12 t0_rp13 t1_rp12 t1_rp13
+ local packets_rp12 packets_rp13
+
+ # Transmit multiple flows from h1 to h2 and make sure they are
+ # distributed between both multipath links (rp12 and rp13)
+ # according to the configured weights.
+ sysctl_set net.ipv4.fib_multipath_hash_policy 1
+ ip nexthop replace id 103 group 101,$weight_rp12/102,$weight_rp13
+
+ t0_rp12=$(link_stats_tx_packets_get $rp12)
+ t0_rp13=$(link_stats_tx_packets_get $rp13)
+
+ ip vrf exec vrf-h1 $MZ $h1 -q -p 64 -A 192.0.2.2 -B 198.51.100.2 \
+ -d 1msec -t udp "sp=1024,dp=0-32768"
+
+ t1_rp12=$(link_stats_tx_packets_get $rp12)
+ t1_rp13=$(link_stats_tx_packets_get $rp13)
+
+ let "packets_rp12 = $t1_rp12 - $t0_rp12"
+ let "packets_rp13 = $t1_rp13 - $t0_rp13"
+ multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13
+
+ # Restore settings.
+ ip nexthop replace id 103 group 101/102
+ sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+multipath6_l4_test()
+{
+ local desc="$1"
+ local weight_rp12=$2
+ local weight_rp13=$3
+ local t0_rp12 t0_rp13 t1_rp12 t1_rp13
+ local packets_rp12 packets_rp13
+
+ # Transmit multiple flows from h1 to h2 and make sure they are
+ # distributed between both multipath links (rp12 and rp13)
+ # according to the configured weights.
+ sysctl_set net.ipv6.fib_multipath_hash_policy 1
+
+ ip nexthop replace id 106 group 104,$weight_rp12/105,$weight_rp13
+
+ t0_rp12=$(link_stats_tx_packets_get $rp12)
+ t0_rp13=$(link_stats_tx_packets_get $rp13)
+
+ $MZ $h1 -6 -q -p 64 -A 2001:db8:1::2 -B 2001:db8:2::2 \
+ -d 1msec -t udp "sp=1024,dp=0-32768"
+
+ t1_rp12=$(link_stats_tx_packets_get $rp12)
+ t1_rp13=$(link_stats_tx_packets_get $rp13)
+
+ let "packets_rp12 = $t1_rp12 - $t0_rp12"
+ let "packets_rp13 = $t1_rp13 - $t0_rp13"
+ multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13
+
+ ip nexthop replace id 106 group 104/105
+
+ sysctl_restore net.ipv6.fib_multipath_hash_policy
+}
+
+multipath6_test()
+{
+ local desc="$1"
+ local weight_rp12=$2
+ local weight_rp13=$3
+ local t0_rp12 t0_rp13 t1_rp12 t1_rp13
+ local packets_rp12 packets_rp13
+
+ ip nexthop replace id 106 group 104,$weight_rp12/105,$weight_rp13
+
+ t0_rp12=$(link_stats_tx_packets_get $rp12)
+ t0_rp13=$(link_stats_tx_packets_get $rp13)
+
+ # Generate 16384 echo requests, each with a random flow label.
+ for _ in $(seq 1 16384); do
+ ip vrf exec vrf-h1 $PING6 2001:db8:2::2 -F 0 -c 1 -q >/dev/null 2>&1
+ done
+
+ t1_rp12=$(link_stats_tx_packets_get $rp12)
+ t1_rp13=$(link_stats_tx_packets_get $rp13)
+
+ let "packets_rp12 = $t1_rp12 - $t0_rp12"
+ let "packets_rp13 = $t1_rp13 - $t0_rp13"
+ multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13
+
+ ip nexthop replace id 106 group 104/105
+}
+
+multipath_test()
+{
+ log_info "Running IPv4 multipath tests"
+ multipath4_test "ECMP" 1 1
+ multipath4_test "Weighted MP 2:1" 2 1
+ multipath4_test "Weighted MP 11:45" 11 45
+
+ log_info "Running IPv6 multipath tests"
+ multipath6_test "ECMP" 1 1
+ multipath6_test "Weighted MP 2:1" 2 1
+ multipath6_test "Weighted MP 11:45" 11 45
+
+ log_info "Running IPv6 L4 hash multipath tests"
+ multipath6_l4_test "ECMP" 1 1
+ multipath6_l4_test "Weighted MP 2:1" 2 1
+ multipath6_l4_test "Weighted MP 11:45" 11 45
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ rp11=${NETIFS[p2]}
+
+ rp12=${NETIFS[p3]}
+ rp22=${NETIFS[p4]}
+
+ rp13=${NETIFS[p5]}
+ rp23=${NETIFS[p6]}
+
+ rp21=${NETIFS[p7]}
+ h2=${NETIFS[p8]}
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+
+ router1_create
+ router2_create
+ routing_nh_obj
+
+ forwarding_enable
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ forwarding_restore
+
+ router2_destroy
+ router1_destroy
+
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+ping_ipv4()
+{
+ ping_test $h1 198.51.100.2
+}
+
+ping_ipv6()
+{
+ ping6_test $h1 2001:db8:2::2
+}
+
+ip nexthop ls >/dev/null 2>&1
+if [ $? -ne 0 ]; then
+ echo "Nexthop objects not supported; skipping tests"
+ exit 0
+fi
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+routing_nh_obj
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_multicast.sh b/tools/testing/selftests/net/forwarding/router_multicast.sh
new file mode 100755
index 000000000..57e90c873
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_multicast.sh
@@ -0,0 +1,416 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +------------------+
+# | H1 (v$h1) |
+# | 2001:db8:1::2/64 |
+# | 198.51.100.2/28 |
+# | $h1 + |
+# +-------------|----+
+# |
+# +-------------|-------------------------------+
+# | SW1 | |
+# | $rp1 + |
+# | 198.51.100.1/28 |
+# | 2001:db8:1::1/64 |
+# | |
+# | 2001:db8:2::1/64 2001:db8:3::1/64 |
+# | 198.51.100.17/28 198.51.100.33/28 |
+# | $rp2 + $rp3 + |
+# +--------------|--------------------------|---+
+# | |
+# | |
+# +--------------|---+ +--------------|---+
+# | H2 (v$h2) | | | H3 (v$h3) | |
+# | $h2 + | | $h3 + |
+# | 198.51.100.18/28 | | 198.51.100.34/28 |
+# | 2001:db8:2::2/64 | | 2001:db8:3::2/64 |
+# +------------------+ +------------------+
+#
+
+ALL_TESTS="mcast_v4 mcast_v6 rpf_v4 rpf_v6"
+NUM_NETIFS=6
+source lib.sh
+source tc_common.sh
+
+require_command $MCD
+require_command $MC_CLI
+table_name=selftests
+
+h1_create()
+{
+ simple_if_init $h1 198.51.100.2/28 2001:db8:1::2/64
+
+ ip route add 198.51.100.16/28 vrf v$h1 nexthop via 198.51.100.1
+ ip route add 198.51.100.32/28 vrf v$h1 nexthop via 198.51.100.1
+
+ ip route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::1
+ ip route add 2001:db8:3::/64 vrf v$h1 nexthop via 2001:db8:1::1
+
+ tc qdisc add dev $h1 ingress
+}
+
+h1_destroy()
+{
+ tc qdisc del dev $h1 ingress
+
+ ip route del 2001:db8:3::/64 vrf v$h1
+ ip route del 2001:db8:2::/64 vrf v$h1
+
+ ip route del 198.51.100.32/28 vrf v$h1
+ ip route del 198.51.100.16/28 vrf v$h1
+
+ simple_if_fini $h1 198.51.100.2/28 2001:db8:1::2/64
+}
+
+h2_create()
+{
+ simple_if_init $h2 198.51.100.18/28 2001:db8:2::2/64
+
+ ip route add 198.51.100.0/28 vrf v$h2 nexthop via 198.51.100.17
+ ip route add 198.51.100.32/28 vrf v$h2 nexthop via 198.51.100.17
+
+ ip route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::1
+ ip route add 2001:db8:3::/64 vrf v$h2 nexthop via 2001:db8:2::1
+
+ tc qdisc add dev $h2 ingress
+}
+
+h2_destroy()
+{
+ tc qdisc del dev $h2 ingress
+
+ ip route del 2001:db8:3::/64 vrf v$h2
+ ip route del 2001:db8:1::/64 vrf v$h2
+
+ ip route del 198.51.100.32/28 vrf v$h2
+ ip route del 198.51.100.0/28 vrf v$h2
+
+ simple_if_fini $h2 198.51.100.18/28 2001:db8:2::2/64
+}
+
+h3_create()
+{
+ simple_if_init $h3 198.51.100.34/28 2001:db8:3::2/64
+
+ ip route add 198.51.100.0/28 vrf v$h3 nexthop via 198.51.100.33
+ ip route add 198.51.100.16/28 vrf v$h3 nexthop via 198.51.100.33
+
+ ip route add 2001:db8:1::/64 vrf v$h3 nexthop via 2001:db8:3::1
+ ip route add 2001:db8:2::/64 vrf v$h3 nexthop via 2001:db8:3::1
+
+ tc qdisc add dev $h3 ingress
+}
+
+h3_destroy()
+{
+ tc qdisc del dev $h3 ingress
+
+ ip route del 2001:db8:2::/64 vrf v$h3
+ ip route del 2001:db8:1::/64 vrf v$h3
+
+ ip route del 198.51.100.16/28 vrf v$h3
+ ip route del 198.51.100.0/28 vrf v$h3
+
+ simple_if_fini $h3 198.51.100.34/28 2001:db8:3::2/64
+}
+
+router_create()
+{
+ ip link set dev $rp1 up
+ ip link set dev $rp2 up
+ ip link set dev $rp3 up
+
+ ip address add 198.51.100.1/28 dev $rp1
+ ip address add 198.51.100.17/28 dev $rp2
+ ip address add 198.51.100.33/28 dev $rp3
+
+ ip address add 2001:db8:1::1/64 dev $rp1
+ ip address add 2001:db8:2::1/64 dev $rp2
+ ip address add 2001:db8:3::1/64 dev $rp3
+
+ tc qdisc add dev $rp3 ingress
+}
+
+router_destroy()
+{
+ tc qdisc del dev $rp3 ingress
+
+ ip address del 2001:db8:3::1/64 dev $rp3
+ ip address del 2001:db8:2::1/64 dev $rp2
+ ip address del 2001:db8:1::1/64 dev $rp1
+
+ ip address del 198.51.100.33/28 dev $rp3
+ ip address del 198.51.100.17/28 dev $rp2
+ ip address del 198.51.100.1/28 dev $rp1
+
+ ip link set dev $rp3 down
+ ip link set dev $rp2 down
+ ip link set dev $rp1 down
+}
+
+start_mcd()
+{
+ SMCROUTEDIR="$(mktemp -d)"
+
+ for ((i = 1; i <= $NUM_NETIFS; ++i)); do
+ echo "phyint ${NETIFS[p$i]} enable" >> \
+ $SMCROUTEDIR/$table_name.conf
+ done
+
+ $MCD -N -I $table_name -f $SMCROUTEDIR/$table_name.conf \
+ -P $SMCROUTEDIR/$table_name.pid
+}
+
+kill_mcd()
+{
+ pkill $MCD
+ rm -rf $SMCROUTEDIR
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ rp1=${NETIFS[p2]}
+
+ rp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ rp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ start_mcd
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+ h3_create
+
+ router_create
+
+ forwarding_enable
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ forwarding_restore
+
+ router_destroy
+
+ h3_destroy
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+
+ kill_mcd
+}
+
+create_mcast_sg()
+{
+ local if_name=$1; shift
+ local s_addr=$1; shift
+ local mcast=$1; shift
+ local dest_ifs=${@}
+
+ $MC_CLI -I $table_name add $if_name $s_addr $mcast $dest_ifs
+}
+
+delete_mcast_sg()
+{
+ local if_name=$1; shift
+ local s_addr=$1; shift
+ local mcast=$1; shift
+ local dest_ifs=${@}
+
+ $MC_CLI -I $table_name remove $if_name $s_addr $mcast $dest_ifs
+}
+
+mcast_v4()
+{
+ # Add two interfaces to an MC group, send a packet to the MC group and
+ # verify packets are received on both. Then delete the route and verify
+ # packets are no longer received.
+
+ RET=0
+
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 122 flower \
+ dst_ip 225.1.2.3 action drop
+ tc filter add dev $h3 ingress protocol ip pref 1 handle 133 flower \
+ dst_ip 225.1.2.3 action drop
+
+ create_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3
+
+ # Send frames with the corresponding L2 destination address.
+ $MZ $h1 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
+ -A 198.51.100.2 -B 225.1.2.3 -q
+
+ tc_check_packets "dev $h2 ingress" 122 5
+ check_err $? "Multicast not received on first host"
+ tc_check_packets "dev $h3 ingress" 133 5
+ check_err $? "Multicast not received on second host"
+
+ delete_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3
+
+ $MZ $h1 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
+ -A 198.51.100.2 -B 225.1.2.3 -q
+
+ tc_check_packets "dev $h2 ingress" 122 5
+ check_err $? "Multicast received on host although deleted"
+ tc_check_packets "dev $h3 ingress" 133 5
+ check_err $? "Multicast received on second host although deleted"
+
+ tc filter del dev $h3 ingress protocol ip pref 1 handle 133 flower
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 122 flower
+
+ log_test "mcast IPv4"
+}
+
+mcast_v6()
+{
+ # Add two interfaces to an MC group, send a packet to the MC group and
+ # verify packets are received on both. Then delete the route and verify
+ # packets are no longer received.
+
+ RET=0
+
+ tc filter add dev $h2 ingress protocol ipv6 pref 1 handle 122 flower \
+ dst_ip ff0e::3 action drop
+ tc filter add dev $h3 ingress protocol ipv6 pref 1 handle 133 flower \
+ dst_ip ff0e::3 action drop
+
+ create_mcast_sg $rp1 2001:db8:1::2 ff0e::3 $rp2 $rp3
+
+ # Send frames with the corresponding L2 destination address.
+ $MZ $h1 -6 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 \
+ -b 33:33:00:00:00:03 -A 2001:db8:1::2 -B ff0e::3 -q
+
+ tc_check_packets "dev $h2 ingress" 122 5
+ check_err $? "Multicast not received on first host"
+ tc_check_packets "dev $h3 ingress" 133 5
+ check_err $? "Multicast not received on second host"
+
+ delete_mcast_sg $rp1 2001:db8:1::2 ff0e::3 $rp2 $rp3
+
+ $MZ $h1 -6 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 \
+ -b 33:33:00:00:00:03 -A 2001:db8:1::2 -B ff0e::3 -q
+
+ tc_check_packets "dev $h2 ingress" 122 5
+ check_err $? "Multicast received on first host although deleted"
+ tc_check_packets "dev $h3 ingress" 133 5
+ check_err $? "Multicast received on second host although deleted"
+
+ tc filter del dev $h3 ingress protocol ipv6 pref 1 handle 133 flower
+ tc filter del dev $h2 ingress protocol ipv6 pref 1 handle 122 flower
+
+ log_test "mcast IPv6"
+}
+
+rpf_v4()
+{
+ # Add a multicast route from first router port to the other two. Send
+ # matching packets and test that both hosts receive them. Then, send
+ # the same packets via the third router port and test that they do not
+ # reach any host due to RPF check. A filter with 'skip_hw' is added to
+ # test that devices capable of multicast routing offload trap those
+ # packets. The filter is essentialy a NOP in other scenarios.
+
+ RET=0
+
+ tc filter add dev $h1 ingress protocol ip pref 1 handle 1 flower \
+ dst_ip 225.1.2.3 ip_proto udp dst_port 12345 action drop
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 1 flower \
+ dst_ip 225.1.2.3 ip_proto udp dst_port 12345 action drop
+ tc filter add dev $h3 ingress protocol ip pref 1 handle 1 flower \
+ dst_ip 225.1.2.3 ip_proto udp dst_port 12345 action drop
+ tc filter add dev $rp3 ingress protocol ip pref 1 handle 1 flower \
+ skip_hw dst_ip 225.1.2.3 ip_proto udp dst_port 12345 action pass
+
+ create_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3
+
+ $MZ $h1 -c 5 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
+ -a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
+ -A 198.51.100.2 -B 225.1.2.3 -q
+
+ tc_check_packets "dev $h2 ingress" 1 5
+ check_err $? "Multicast not received on first host"
+ tc_check_packets "dev $h3 ingress" 1 5
+ check_err $? "Multicast not received on second host"
+
+ $MZ $h3 -c 5 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
+ -a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
+ -A 198.51.100.2 -B 225.1.2.3 -q
+
+ tc_check_packets "dev $h1 ingress" 1 0
+ check_err $? "Multicast received on first host when should not"
+ tc_check_packets "dev $h2 ingress" 1 5
+ check_err $? "Multicast received on second host when should not"
+ tc_check_packets "dev $rp3 ingress" 1 5
+ check_err $? "Packets not trapped due to RPF check"
+
+ delete_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3
+
+ tc filter del dev $rp3 ingress protocol ip pref 1 handle 1 flower
+ tc filter del dev $h3 ingress protocol ip pref 1 handle 1 flower
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 1 flower
+ tc filter del dev $h1 ingress protocol ip pref 1 handle 1 flower
+
+ log_test "RPF IPv4"
+}
+
+rpf_v6()
+{
+ RET=0
+
+ tc filter add dev $h1 ingress protocol ipv6 pref 1 handle 1 flower \
+ dst_ip ff0e::3 ip_proto udp dst_port 12345 action drop
+ tc filter add dev $h2 ingress protocol ipv6 pref 1 handle 1 flower \
+ dst_ip ff0e::3 ip_proto udp dst_port 12345 action drop
+ tc filter add dev $h3 ingress protocol ipv6 pref 1 handle 1 flower \
+ dst_ip ff0e::3 ip_proto udp dst_port 12345 action drop
+ tc filter add dev $rp3 ingress protocol ipv6 pref 1 handle 1 flower \
+ skip_hw dst_ip ff0e::3 ip_proto udp dst_port 12345 action pass
+
+ create_mcast_sg $rp1 2001:db8:1::2 ff0e::3 $rp2 $rp3
+
+ $MZ $h1 -6 -c 5 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
+ -a 00:11:22:33:44:55 -b 33:33:00:00:00:03 \
+ -A 2001:db8:1::2 -B ff0e::3 -q
+
+ tc_check_packets "dev $h2 ingress" 1 5
+ check_err $? "Multicast not received on first host"
+ tc_check_packets "dev $h3 ingress" 1 5
+ check_err $? "Multicast not received on second host"
+
+ $MZ $h3 -6 -c 5 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
+ -a 00:11:22:33:44:55 -b 33:33:00:00:00:03 \
+ -A 2001:db8:1::2 -B ff0e::3 -q
+
+ tc_check_packets "dev $h1 ingress" 1 0
+ check_err $? "Multicast received on first host when should not"
+ tc_check_packets "dev $h2 ingress" 1 5
+ check_err $? "Multicast received on second host when should not"
+ tc_check_packets "dev $rp3 ingress" 1 5
+ check_err $? "Packets not trapped due to RPF check"
+
+ delete_mcast_sg $rp1 2001:db8:1::2 ff0e::3 $rp2 $rp3
+
+ tc filter del dev $rp3 ingress protocol ipv6 pref 1 handle 1 flower
+ tc filter del dev $h3 ingress protocol ipv6 pref 1 handle 1 flower
+ tc filter del dev $h2 ingress protocol ipv6 pref 1 handle 1 flower
+ tc filter del dev $h1 ingress protocol ipv6 pref 1 handle 1 flower
+
+ log_test "RPF IPv6"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_multipath.sh b/tools/testing/selftests/net/forwarding/router_multipath.sh
new file mode 100755
index 000000000..464821c58
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_multipath.sh
@@ -0,0 +1,342 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="ping_ipv4 ping_ipv6 multipath_test"
+NUM_NETIFS=8
+source lib.sh
+
+h1_create()
+{
+ vrf_create "vrf-h1"
+ ip link set dev $h1 master vrf-h1
+
+ ip link set dev vrf-h1 up
+ ip link set dev $h1 up
+
+ ip address add 192.0.2.2/24 dev $h1
+ ip address add 2001:db8:1::2/64 dev $h1
+
+ ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.1
+ ip route add 2001:db8:2::/64 vrf vrf-h1 nexthop via 2001:db8:1::1
+}
+
+h1_destroy()
+{
+ ip route del 2001:db8:2::/64 vrf vrf-h1
+ ip route del 198.51.100.0/24 vrf vrf-h1
+
+ ip address del 2001:db8:1::2/64 dev $h1
+ ip address del 192.0.2.2/24 dev $h1
+
+ ip link set dev $h1 down
+ vrf_destroy "vrf-h1"
+}
+
+h2_create()
+{
+ vrf_create "vrf-h2"
+ ip link set dev $h2 master vrf-h2
+
+ ip link set dev vrf-h2 up
+ ip link set dev $h2 up
+
+ ip address add 198.51.100.2/24 dev $h2
+ ip address add 2001:db8:2::2/64 dev $h2
+
+ ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.1
+ ip route add 2001:db8:1::/64 vrf vrf-h2 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+ ip route del 2001:db8:1::/64 vrf vrf-h2
+ ip route del 192.0.2.0/24 vrf vrf-h2
+
+ ip address del 2001:db8:2::2/64 dev $h2
+ ip address del 198.51.100.2/24 dev $h2
+
+ ip link set dev $h2 down
+ vrf_destroy "vrf-h2"
+}
+
+router1_create()
+{
+ vrf_create "vrf-r1"
+ ip link set dev $rp11 master vrf-r1
+ ip link set dev $rp12 master vrf-r1
+ ip link set dev $rp13 master vrf-r1
+
+ ip link set dev vrf-r1 up
+ ip link set dev $rp11 up
+ ip link set dev $rp12 up
+ ip link set dev $rp13 up
+
+ ip address add 192.0.2.1/24 dev $rp11
+ ip address add 2001:db8:1::1/64 dev $rp11
+
+ ip address add 169.254.2.12/24 dev $rp12
+ ip address add fe80:2::12/64 dev $rp12
+
+ ip address add 169.254.3.13/24 dev $rp13
+ ip address add fe80:3::13/64 dev $rp13
+
+ ip route add 198.51.100.0/24 vrf vrf-r1 \
+ nexthop via 169.254.2.22 dev $rp12 \
+ nexthop via 169.254.3.23 dev $rp13
+ ip route add 2001:db8:2::/64 vrf vrf-r1 \
+ nexthop via fe80:2::22 dev $rp12 \
+ nexthop via fe80:3::23 dev $rp13
+}
+
+router1_destroy()
+{
+ ip route del 2001:db8:2::/64 vrf vrf-r1
+ ip route del 198.51.100.0/24 vrf vrf-r1
+
+ ip address del fe80:3::13/64 dev $rp13
+ ip address del 169.254.3.13/24 dev $rp13
+
+ ip address del fe80:2::12/64 dev $rp12
+ ip address del 169.254.2.12/24 dev $rp12
+
+ ip address del 2001:db8:1::1/64 dev $rp11
+ ip address del 192.0.2.1/24 dev $rp11
+
+ ip link set dev $rp13 down
+ ip link set dev $rp12 down
+ ip link set dev $rp11 down
+
+ vrf_destroy "vrf-r1"
+}
+
+router2_create()
+{
+ vrf_create "vrf-r2"
+ ip link set dev $rp21 master vrf-r2
+ ip link set dev $rp22 master vrf-r2
+ ip link set dev $rp23 master vrf-r2
+
+ ip link set dev vrf-r2 up
+ ip link set dev $rp21 up
+ ip link set dev $rp22 up
+ ip link set dev $rp23 up
+
+ ip address add 198.51.100.1/24 dev $rp21
+ ip address add 2001:db8:2::1/64 dev $rp21
+
+ ip address add 169.254.2.22/24 dev $rp22
+ ip address add fe80:2::22/64 dev $rp22
+
+ ip address add 169.254.3.23/24 dev $rp23
+ ip address add fe80:3::23/64 dev $rp23
+
+ ip route add 192.0.2.0/24 vrf vrf-r2 \
+ nexthop via 169.254.2.12 dev $rp22 \
+ nexthop via 169.254.3.13 dev $rp23
+ ip route add 2001:db8:1::/64 vrf vrf-r2 \
+ nexthop via fe80:2::12 dev $rp22 \
+ nexthop via fe80:3::13 dev $rp23
+}
+
+router2_destroy()
+{
+ ip route del 2001:db8:1::/64 vrf vrf-r2
+ ip route del 192.0.2.0/24 vrf vrf-r2
+
+ ip address del fe80:3::23/64 dev $rp23
+ ip address del 169.254.3.23/24 dev $rp23
+
+ ip address del fe80:2::22/64 dev $rp22
+ ip address del 169.254.2.22/24 dev $rp22
+
+ ip address del 2001:db8:2::1/64 dev $rp21
+ ip address del 198.51.100.1/24 dev $rp21
+
+ ip link set dev $rp23 down
+ ip link set dev $rp22 down
+ ip link set dev $rp21 down
+
+ vrf_destroy "vrf-r2"
+}
+
+multipath4_test()
+{
+ local desc="$1"
+ local weight_rp12=$2
+ local weight_rp13=$3
+ local t0_rp12 t0_rp13 t1_rp12 t1_rp13
+ local packets_rp12 packets_rp13
+
+ # Transmit multiple flows from h1 to h2 and make sure they are
+ # distributed between both multipath links (rp12 and rp13)
+ # according to the configured weights.
+ sysctl_set net.ipv4.fib_multipath_hash_policy 1
+ ip route replace 198.51.100.0/24 vrf vrf-r1 \
+ nexthop via 169.254.2.22 dev $rp12 weight $weight_rp12 \
+ nexthop via 169.254.3.23 dev $rp13 weight $weight_rp13
+
+ t0_rp12=$(link_stats_tx_packets_get $rp12)
+ t0_rp13=$(link_stats_tx_packets_get $rp13)
+
+ ip vrf exec vrf-h1 $MZ $h1 -q -p 64 -A 192.0.2.2 -B 198.51.100.2 \
+ -d 1msec -t udp "sp=1024,dp=0-32768"
+
+ t1_rp12=$(link_stats_tx_packets_get $rp12)
+ t1_rp13=$(link_stats_tx_packets_get $rp13)
+
+ let "packets_rp12 = $t1_rp12 - $t0_rp12"
+ let "packets_rp13 = $t1_rp13 - $t0_rp13"
+ multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13
+
+ # Restore settings.
+ ip route replace 198.51.100.0/24 vrf vrf-r1 \
+ nexthop via 169.254.2.22 dev $rp12 \
+ nexthop via 169.254.3.23 dev $rp13
+ sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+multipath6_l4_test()
+{
+ local desc="$1"
+ local weight_rp12=$2
+ local weight_rp13=$3
+ local t0_rp12 t0_rp13 t1_rp12 t1_rp13
+ local packets_rp12 packets_rp13
+
+ # Transmit multiple flows from h1 to h2 and make sure they are
+ # distributed between both multipath links (rp12 and rp13)
+ # according to the configured weights.
+ sysctl_set net.ipv6.fib_multipath_hash_policy 1
+
+ ip route replace 2001:db8:2::/64 vrf vrf-r1 \
+ nexthop via fe80:2::22 dev $rp12 weight $weight_rp12 \
+ nexthop via fe80:3::23 dev $rp13 weight $weight_rp13
+
+ t0_rp12=$(link_stats_tx_packets_get $rp12)
+ t0_rp13=$(link_stats_tx_packets_get $rp13)
+
+ $MZ $h1 -6 -q -p 64 -A 2001:db8:1::2 -B 2001:db8:2::2 \
+ -d 1msec -t udp "sp=1024,dp=0-32768"
+
+ t1_rp12=$(link_stats_tx_packets_get $rp12)
+ t1_rp13=$(link_stats_tx_packets_get $rp13)
+
+ let "packets_rp12 = $t1_rp12 - $t0_rp12"
+ let "packets_rp13 = $t1_rp13 - $t0_rp13"
+ multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13
+
+ ip route replace 2001:db8:2::/64 vrf vrf-r1 \
+ nexthop via fe80:2::22 dev $rp12 \
+ nexthop via fe80:3::23 dev $rp13
+
+ sysctl_restore net.ipv6.fib_multipath_hash_policy
+}
+
+multipath6_test()
+{
+ local desc="$1"
+ local weight_rp12=$2
+ local weight_rp13=$3
+ local t0_rp12 t0_rp13 t1_rp12 t1_rp13
+ local packets_rp12 packets_rp13
+
+ ip route replace 2001:db8:2::/64 vrf vrf-r1 \
+ nexthop via fe80:2::22 dev $rp12 weight $weight_rp12 \
+ nexthop via fe80:3::23 dev $rp13 weight $weight_rp13
+
+ t0_rp12=$(link_stats_tx_packets_get $rp12)
+ t0_rp13=$(link_stats_tx_packets_get $rp13)
+
+ # Generate 16384 echo requests, each with a random flow label.
+ for _ in $(seq 1 16384); do
+ ip vrf exec vrf-h1 $PING6 2001:db8:2::2 -F 0 -c 1 -q &> /dev/null
+ done
+
+ t1_rp12=$(link_stats_tx_packets_get $rp12)
+ t1_rp13=$(link_stats_tx_packets_get $rp13)
+
+ let "packets_rp12 = $t1_rp12 - $t0_rp12"
+ let "packets_rp13 = $t1_rp13 - $t0_rp13"
+ multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13
+
+ ip route replace 2001:db8:2::/64 vrf vrf-r1 \
+ nexthop via fe80:2::22 dev $rp12 \
+ nexthop via fe80:3::23 dev $rp13
+}
+
+multipath_test()
+{
+ log_info "Running IPv4 multipath tests"
+ multipath4_test "ECMP" 1 1
+ multipath4_test "Weighted MP 2:1" 2 1
+ multipath4_test "Weighted MP 11:45" 11 45
+
+ log_info "Running IPv6 multipath tests"
+ multipath6_test "ECMP" 1 1
+ multipath6_test "Weighted MP 2:1" 2 1
+ multipath6_test "Weighted MP 11:45" 11 45
+
+ log_info "Running IPv6 L4 hash multipath tests"
+ multipath6_l4_test "ECMP" 1 1
+ multipath6_l4_test "Weighted MP 2:1" 2 1
+ multipath6_l4_test "Weighted MP 11:45" 11 45
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ rp11=${NETIFS[p2]}
+
+ rp12=${NETIFS[p3]}
+ rp22=${NETIFS[p4]}
+
+ rp13=${NETIFS[p5]}
+ rp23=${NETIFS[p6]}
+
+ rp21=${NETIFS[p7]}
+ h2=${NETIFS[p8]}
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+
+ router1_create
+ router2_create
+
+ forwarding_enable
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ forwarding_restore
+
+ router2_destroy
+ router1_destroy
+
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+ping_ipv4()
+{
+ ping_test $h1 198.51.100.2
+}
+
+ping_ipv6()
+{
+ ping6_test $h1 2001:db8:2::2
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_vid_1.sh b/tools/testing/selftests/net/forwarding/router_vid_1.sh
new file mode 100755
index 000000000..a7306c7ac
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_vid_1.sh
@@ -0,0 +1,135 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="ping_ipv4 ping_ipv6"
+NUM_NETIFS=4
+source lib.sh
+
+h1_create()
+{
+ vrf_create "vrf-h1"
+ ip link set dev vrf-h1 up
+
+ ip link set dev $h1 up
+ vlan_create $h1 1 vrf-h1 192.0.2.2/24 2001:db8:1::2/64
+
+ ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.1
+ ip route add 2001:db8:2::/64 vrf vrf-h1 nexthop via 2001:db8:1::1
+}
+
+h1_destroy()
+{
+ ip route del 2001:db8:2::/64 vrf vrf-h1
+ ip route del 198.51.100.0/24 vrf vrf-h1
+
+ vlan_destroy $h1 1
+ ip link set dev $h1 down
+
+ ip link set dev vrf-h1 down
+ vrf_destroy "vrf-h1"
+}
+
+h2_create()
+{
+ vrf_create "vrf-h2"
+ ip link set dev vrf-h2 up
+
+ ip link set dev $h2 up
+ vlan_create $h2 1 vrf-h2 198.51.100.2/24 2001:db8:2::2/64
+
+ ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.1
+ ip route add 2001:db8:1::/64 vrf vrf-h2 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+ ip route del 2001:db8:1::/64 vrf vrf-h2
+ ip route del 192.0.2.0/24 vrf vrf-h2
+
+ vlan_destroy $h2 1
+ ip link set dev $h2 down
+
+ ip link set dev vrf-h2 down
+ vrf_destroy "vrf-h2"
+}
+
+router_create()
+{
+ ip link set dev $rp1 up
+ ip link add link $rp1 name $rp1.1 up type vlan id 1
+
+ ip address add 192.0.2.1/24 dev $rp1.1
+ ip address add 2001:db8:1::1/64 dev $rp1.1
+
+ ip link set dev $rp2 up
+ ip link add link $rp2 name $rp2.1 up type vlan id 1
+
+ ip address add 198.51.100.1/24 dev $rp2.1
+ ip address add 2001:db8:2::1/64 dev $rp2.1
+}
+
+router_destroy()
+{
+ ip address del 2001:db8:2::1/64 dev $rp2.1
+ ip address del 198.51.100.1/24 dev $rp2.1
+
+ ip link del dev $rp2.1
+ ip link set dev $rp2 down
+
+ ip address del 2001:db8:1::1/64 dev $rp1.1
+ ip address del 192.0.2.1/24 dev $rp1.1
+
+ ip link del dev $rp1.1
+ ip link set dev $rp1 down
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ rp1=${NETIFS[p2]}
+
+ rp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+
+ router_create
+
+ forwarding_enable
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ forwarding_restore
+
+ router_destroy
+
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+ping_ipv4()
+{
+ ping_test $h1.1 198.51.100.2
+}
+
+ping_ipv6()
+{
+ ping6_test $h1.1 2001:db8:2::2
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/sch_ets.sh b/tools/testing/selftests/net/forwarding/sch_ets.sh
new file mode 100755
index 000000000..e60c8b481
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/sch_ets.sh
@@ -0,0 +1,47 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# A driver for the ETS selftest that implements testing in slowpath.
+lib_dir=.
+source sch_ets_core.sh
+
+ALL_TESTS="
+ ping_ipv4
+ priomap_mode
+ ets_test_strict
+ ets_test_mixed
+ ets_test_dwrr
+ classifier_mode
+ ets_test_strict
+ ets_test_mixed
+ ets_test_dwrr
+"
+
+switch_create()
+{
+ ets_switch_create
+
+ # Create a bottleneck so that the DWRR process can kick in.
+ tc qdisc add dev $swp2 root handle 1: tbf \
+ rate 1Gbit burst 1Mbit latency 100ms
+ PARENT="parent 1:"
+}
+
+switch_destroy()
+{
+ ets_switch_destroy
+ tc qdisc del dev $swp2 root
+}
+
+# Callback from sch_ets_tests.sh
+collect_stats()
+{
+ local -a streams=("$@")
+ local stream
+
+ for stream in ${streams[@]}; do
+ qdisc_parent_stats_get $swp2 10:$((stream + 1)) .bytes
+ done
+}
+
+ets_run
diff --git a/tools/testing/selftests/net/forwarding/sch_ets_core.sh b/tools/testing/selftests/net/forwarding/sch_ets_core.sh
new file mode 100644
index 000000000..f906fcc66
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/sch_ets_core.sh
@@ -0,0 +1,300 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# This is a template for ETS Qdisc test.
+#
+# This test sends from H1 several traffic streams with 802.1p-tagged packets.
+# The tags are used at $swp1 to prioritize the traffic. Each stream is then
+# queued at a different ETS band according to the assigned priority. After
+# runnig for a while, counters at H2 are consulted to determine whether the
+# traffic scheduling was according to the ETS configuration.
+#
+# This template is supposed to be embedded by a test driver, which implements
+# statistics collection, any HW-specific stuff, and prominently configures the
+# system to assure that there is overcommitment at $swp2. That is necessary so
+# that the ETS traffic selection algorithm kicks in and has to schedule some
+# traffic at the expense of other.
+#
+# A driver for veth-based testing is in sch_ets.sh, an example of a driver for
+# an offloaded data path is in selftests/drivers/net/mlxsw/sch_ets.sh.
+#
+# +---------------------------------------------------------------------+
+# | H1 |
+# | + $h1.10 + $h1.11 + $h1.12 |
+# | | 192.0.2.1/28 | 192.0.2.17/28 | 192.0.2.33/28 |
+# | | egress-qos-map | egress-qos-map | egress-qos-map |
+# | | 0:0 | 0:1 | 0:2 |
+# | \____________________ | ____________________/ |
+# | \|/ |
+# | + $h1 |
+# +---------------------------|-----------------------------------------+
+# |
+# +---------------------------|-----------------------------------------+
+# | SW + $swp1 |
+# | | >1Gbps |
+# | ____________________/|\____________________ |
+# | / | \ |
+# | +--|----------------+ +--|----------------+ +--|----------------+ |
+# | | + $swp1.10 | | + $swp1.11 | | + $swp1.12 | |
+# | | ingress-qos-map| | ingress-qos-map| | ingress-qos-map| |
+# | | 0:0 1:1 2:2 | | 0:0 1:1 2:2 | | 0:0 1:1 2:2 | |
+# | | | | | | | |
+# | | BR10 | | BR11 | | BR12 | |
+# | | | | | | | |
+# | | + $swp2.10 | | + $swp2.11 | | + $swp2.12 | |
+# | +--|----------------+ +--|----------------+ +--|----------------+ |
+# | \____________________ | ____________________/ |
+# | \|/ |
+# | + $swp2 |
+# | | 1Gbps (ethtool or HTB qdisc) |
+# | | qdisc ets quanta $W0 $W1 $W2 |
+# | | priomap 0 1 2 |
+# +---------------------------|-----------------------------------------+
+# |
+# +---------------------------|-----------------------------------------+
+# | H2 + $h2 |
+# | ____________________/|\____________________ |
+# | / | \ |
+# | + $h2.10 + $h2.11 + $h2.12 |
+# | 192.0.2.2/28 192.0.2.18/28 192.0.2.34/28 |
+# +---------------------------------------------------------------------+
+
+NUM_NETIFS=4
+CHECK_TC=yes
+source $lib_dir/lib.sh
+source $lib_dir/sch_ets_tests.sh
+
+PARENT=root
+QDISC_DEV=
+
+sip()
+{
+ echo 192.0.2.$((16 * $1 + 1))
+}
+
+dip()
+{
+ echo 192.0.2.$((16 * $1 + 2))
+}
+
+# Callback from sch_ets_tests.sh
+ets_start_traffic()
+{
+ local dst_mac=$(mac_get $h2)
+ local i=$1; shift
+
+ start_traffic $h1.1$i $(sip $i) $(dip $i) $dst_mac
+}
+
+ETS_CHANGE_QDISC=
+
+priomap_mode()
+{
+ echo "Running in priomap mode"
+ ets_delete_qdisc
+ ETS_CHANGE_QDISC=ets_change_qdisc_priomap
+}
+
+classifier_mode()
+{
+ echo "Running in classifier mode"
+ ets_delete_qdisc
+ ETS_CHANGE_QDISC=ets_change_qdisc_classifier
+}
+
+ets_change_qdisc_priomap()
+{
+ local dev=$1; shift
+ local nstrict=$1; shift
+ local priomap=$1; shift
+ local quanta=("${@}")
+
+ local op=$(if [[ -n $QDISC_DEV ]]; then echo change; else echo add; fi)
+
+ tc qdisc $op dev $dev $PARENT handle 10: ets \
+ $(if ((nstrict)); then echo strict $nstrict; fi) \
+ $(if ((${#quanta[@]})); then echo quanta ${quanta[@]}; fi) \
+ priomap $priomap
+ QDISC_DEV=$dev
+}
+
+ets_change_qdisc_classifier()
+{
+ local dev=$1; shift
+ local nstrict=$1; shift
+ local priomap=$1; shift
+ local quanta=("${@}")
+
+ local op=$(if [[ -n $QDISC_DEV ]]; then echo change; else echo add; fi)
+
+ tc qdisc $op dev $dev $PARENT handle 10: ets \
+ $(if ((nstrict)); then echo strict $nstrict; fi) \
+ $(if ((${#quanta[@]})); then echo quanta ${quanta[@]}; fi)
+
+ if [[ $op == add ]]; then
+ local prio=0
+ local band
+
+ for band in $priomap; do
+ tc filter add dev $dev parent 10: basic \
+ match "meta(priority eq $prio)" \
+ flowid 10:$((band + 1))
+ ((prio++))
+ done
+ fi
+ QDISC_DEV=$dev
+}
+
+# Callback from sch_ets_tests.sh
+ets_change_qdisc()
+{
+ if [[ -z "$ETS_CHANGE_QDISC" ]]; then
+ exit 1
+ fi
+ $ETS_CHANGE_QDISC "$@"
+}
+
+ets_delete_qdisc()
+{
+ if [[ -n $QDISC_DEV ]]; then
+ tc qdisc del dev $QDISC_DEV $PARENT
+ QDISC_DEV=
+ fi
+}
+
+h1_create()
+{
+ local i;
+
+ simple_if_init $h1
+ mtu_set $h1 9900
+ for i in {0..2}; do
+ vlan_create $h1 1$i v$h1 $(sip $i)/28
+ ip link set dev $h1.1$i type vlan egress 0:$i
+ done
+}
+
+h1_destroy()
+{
+ local i
+
+ for i in {0..2}; do
+ vlan_destroy $h1 1$i
+ done
+ mtu_restore $h1
+ simple_if_fini $h1
+}
+
+h2_create()
+{
+ local i
+
+ simple_if_init $h2
+ mtu_set $h2 9900
+ for i in {0..2}; do
+ vlan_create $h2 1$i v$h2 $(dip $i)/28
+ done
+}
+
+h2_destroy()
+{
+ local i
+
+ for i in {0..2}; do
+ vlan_destroy $h2 1$i
+ done
+ mtu_restore $h2
+ simple_if_fini $h2
+}
+
+ets_switch_create()
+{
+ local i
+
+ ip link set dev $swp1 up
+ mtu_set $swp1 9900
+
+ ip link set dev $swp2 up
+ mtu_set $swp2 9900
+
+ for i in {0..2}; do
+ vlan_create $swp1 1$i
+ ip link set dev $swp1.1$i type vlan ingress 0:0 1:1 2:2
+
+ vlan_create $swp2 1$i
+
+ ip link add dev br1$i type bridge
+ ip link set dev $swp1.1$i master br1$i
+ ip link set dev $swp2.1$i master br1$i
+
+ ip link set dev br1$i up
+ ip link set dev $swp1.1$i up
+ ip link set dev $swp2.1$i up
+ done
+}
+
+ets_switch_destroy()
+{
+ local i
+
+ ets_delete_qdisc
+
+ for i in {0..2}; do
+ ip link del dev br1$i
+ vlan_destroy $swp2 1$i
+ vlan_destroy $swp1 1$i
+ done
+
+ mtu_restore $swp2
+ ip link set dev $swp2 down
+
+ mtu_restore $swp1
+ ip link set dev $swp1 down
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ put=$swp2
+ hut=$h2
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+ switch_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ switch_destroy
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+ping_ipv4()
+{
+ ping_test $h1.10 $(dip 0) " vlan 10"
+ ping_test $h1.11 $(dip 1) " vlan 11"
+ ping_test $h1.12 $(dip 2) " vlan 12"
+}
+
+ets_run()
+{
+ trap cleanup EXIT
+
+ setup_prepare
+ setup_wait
+
+ tests_run
+
+ exit $EXIT_STATUS
+}
diff --git a/tools/testing/selftests/net/forwarding/sch_ets_tests.sh b/tools/testing/selftests/net/forwarding/sch_ets_tests.sh
new file mode 100644
index 000000000..cdf689e99
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/sch_ets_tests.sh
@@ -0,0 +1,223 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# Global interface:
+# $put -- port under test (e.g. $swp2)
+# collect_stats($streams...) -- A function to get stats for individual streams
+# ets_start_traffic($band) -- Start traffic for this band
+# ets_change_qdisc($op, $dev, $nstrict, $quanta...) -- Add or change qdisc
+
+# WS describes the Qdisc configuration. It has one value per band (so the
+# number of array elements indicates the number of bands). If the value is
+# 0, it is a strict band, otherwise the it's a DRR band and the value is
+# that band's quantum.
+declare -a WS
+
+qdisc_describe()
+{
+ local nbands=${#WS[@]}
+ local nstrict=0
+ local i
+
+ for ((i = 0; i < nbands; i++)); do
+ if ((!${WS[$i]})); then
+ : $((nstrict++))
+ fi
+ done
+
+ echo -n "ets bands $nbands"
+ if ((nstrict)); then
+ echo -n " strict $nstrict"
+ fi
+ if ((nstrict < nbands)); then
+ echo -n " quanta"
+ for ((i = nstrict; i < nbands; i++)); do
+ echo -n " ${WS[$i]}"
+ done
+ fi
+}
+
+__strict_eval()
+{
+ local desc=$1; shift
+ local d=$1; shift
+ local total=$1; shift
+ local above=$1; shift
+
+ RET=0
+
+ if ((! total)); then
+ check_err 1 "No traffic observed"
+ log_test "$desc"
+ return
+ fi
+
+ local ratio=$(echo "scale=2; 100 * $d / $total" | bc -l)
+ if ((above)); then
+ test $(echo "$ratio > 95.0" | bc -l) -eq 1
+ check_err $? "Not enough traffic"
+ log_test "$desc"
+ log_info "Expected ratio >95% Measured ratio $ratio"
+ else
+ test $(echo "$ratio < 5" | bc -l) -eq 1
+ check_err $? "Too much traffic"
+ log_test "$desc"
+ log_info "Expected ratio <5% Measured ratio $ratio"
+ fi
+}
+
+strict_eval()
+{
+ __strict_eval "$@" 1
+}
+
+notraf_eval()
+{
+ __strict_eval "$@" 0
+}
+
+__ets_dwrr_test()
+{
+ local -a streams=("$@")
+
+ local low_stream=${streams[0]}
+ local seen_strict=0
+ local -a t0 t1 d
+ local stream
+ local total
+ local i
+
+ echo "Testing $(qdisc_describe), streams ${streams[@]}"
+
+ for stream in ${streams[@]}; do
+ ets_start_traffic $stream
+ done
+
+ sleep 10
+
+ t0=($(collect_stats "${streams[@]}"))
+
+ sleep 10
+
+ t1=($(collect_stats "${streams[@]}"))
+ d=($(for ((i = 0; i < ${#streams[@]}; i++)); do
+ echo $((${t1[$i]} - ${t0[$i]}))
+ done))
+ total=$(echo ${d[@]} | sed 's/ /+/g' | bc)
+
+ for ((i = 0; i < ${#streams[@]}; i++)); do
+ local stream=${streams[$i]}
+ if ((seen_strict)); then
+ notraf_eval "band $stream" ${d[$i]} $total
+ elif ((${WS[$stream]} == 0)); then
+ strict_eval "band $stream" ${d[$i]} $total
+ seen_strict=1
+ elif ((stream == low_stream)); then
+ # Low stream is used as DWRR evaluation reference.
+ continue
+ else
+ multipath_eval "bands $low_stream:$stream" \
+ ${WS[$low_stream]} ${WS[$stream]} \
+ ${d[0]} ${d[$i]}
+ fi
+ done
+
+ for stream in ${streams[@]}; do
+ stop_traffic
+ done
+}
+
+ets_dwrr_test_012()
+{
+ __ets_dwrr_test 0 1 2
+}
+
+ets_dwrr_test_01()
+{
+ __ets_dwrr_test 0 1
+}
+
+ets_dwrr_test_12()
+{
+ __ets_dwrr_test 1 2
+}
+
+ets_qdisc_setup()
+{
+ local dev=$1; shift
+ local nstrict=$1; shift
+ local -a quanta=("$@")
+
+ local ndwrr=${#quanta[@]}
+ local nbands=$((nstrict + ndwrr))
+ local nstreams=$(if ((nbands > 3)); then echo 3; else echo $nbands; fi)
+ local priomap=$(seq 0 $((nstreams - 1)))
+ local i
+
+ WS=($(
+ for ((i = 0; i < nstrict; i++)); do
+ echo 0
+ done
+ for ((i = 0; i < ndwrr; i++)); do
+ echo ${quanta[$i]}
+ done
+ ))
+
+ ets_change_qdisc $dev $nstrict "$priomap" ${quanta[@]}
+}
+
+ets_set_dwrr_uniform()
+{
+ ets_qdisc_setup $put 0 3300 3300 3300
+}
+
+ets_set_dwrr_varying()
+{
+ ets_qdisc_setup $put 0 5000 3500 1500
+}
+
+ets_set_strict()
+{
+ ets_qdisc_setup $put 3
+}
+
+ets_set_mixed()
+{
+ ets_qdisc_setup $put 1 5000 2500 1500
+}
+
+ets_change_quantum()
+{
+ tc class change dev $put classid 10:2 ets quantum 8000
+ WS[1]=8000
+}
+
+ets_set_dwrr_two_bands()
+{
+ ets_qdisc_setup $put 0 5000 2500
+}
+
+ets_test_strict()
+{
+ ets_set_strict
+ ets_dwrr_test_01
+ ets_dwrr_test_12
+}
+
+ets_test_mixed()
+{
+ ets_set_mixed
+ ets_dwrr_test_01
+ ets_dwrr_test_12
+}
+
+ets_test_dwrr()
+{
+ ets_set_dwrr_uniform
+ ets_dwrr_test_012
+ ets_set_dwrr_varying
+ ets_dwrr_test_012
+ ets_change_quantum
+ ets_dwrr_test_012
+ ets_set_dwrr_two_bands
+ ets_dwrr_test_01
+}
diff --git a/tools/testing/selftests/net/forwarding/sch_red.sh b/tools/testing/selftests/net/forwarding/sch_red.sh
new file mode 100755
index 000000000..81f31179a
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/sch_red.sh
@@ -0,0 +1,493 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test sends one stream of traffic from H1 through a TBF shaper, to a RED
+# within TBF shaper on $swp3. The two shapers have the same configuration, and
+# thus the resulting stream should fill all available bandwidth on the latter
+# shaper. A second stream is sent from H2 also via $swp3, and used to inject
+# additional traffic. Since all available bandwidth is taken, this traffic has
+# to go to backlog.
+#
+# +--------------------------+ +--------------------------+
+# | H1 | | H2 |
+# | + $h1 | | + $h2 |
+# | | 192.0.2.1/28 | | | 192.0.2.2/28 |
+# | | TBF 10Mbps | | | |
+# +-----|--------------------+ +-----|--------------------+
+# | |
+# +-----|------------------------------------------------|--------------------+
+# | SW | | |
+# | +--|------------------------------------------------|----------------+ |
+# | | + $swp1 + $swp2 | |
+# | | BR | |
+# | | | |
+# | | + $swp3 | |
+# | | | TBF 10Mbps / RED | |
+# | +--------------------------------|-----------------------------------+ |
+# | | |
+# +-----------------------------------|---------------------------------------+
+# |
+# +-----|--------------------+
+# | H3 | |
+# | + $h1 |
+# | 192.0.2.3/28 |
+# | |
+# +--------------------------+
+
+ALL_TESTS="
+ ping_ipv4
+ ecn_test
+ ecn_nodrop_test
+ red_test
+ red_qevent_test
+ ecn_qevent_test
+"
+
+NUM_NETIFS=6
+CHECK_TC="yes"
+source lib.sh
+
+BACKLOG=30000
+PKTSZ=1400
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/28
+ mtu_set $h1 10000
+ tc qdisc replace dev $h1 root handle 1: tbf \
+ rate 10Mbit burst 10K limit 1M
+}
+
+h1_destroy()
+{
+ tc qdisc del dev $h1 root
+ mtu_restore $h1
+ simple_if_fini $h1 192.0.2.1/28
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.2/28
+ mtu_set $h2 10000
+}
+
+h2_destroy()
+{
+ mtu_restore $h2
+ simple_if_fini $h2 192.0.2.2/28
+}
+
+h3_create()
+{
+ simple_if_init $h3 192.0.2.3/28
+ mtu_set $h3 10000
+}
+
+h3_destroy()
+{
+ mtu_restore $h3
+ simple_if_fini $h3 192.0.2.3/28
+}
+
+switch_create()
+{
+ ip link add dev br up type bridge
+ ip link set dev $swp1 up master br
+ ip link set dev $swp2 up master br
+ ip link set dev $swp3 up master br
+
+ mtu_set $swp1 10000
+ mtu_set $swp2 10000
+ mtu_set $swp3 10000
+
+ tc qdisc replace dev $swp3 root handle 1: tbf \
+ rate 10Mbit burst 10K limit 1M
+ ip link add name _drop_test up type dummy
+}
+
+switch_destroy()
+{
+ ip link del dev _drop_test
+ tc qdisc del dev $swp3 root
+
+ mtu_restore $h3
+ mtu_restore $h2
+ mtu_restore $h1
+
+ ip link set dev $swp3 down nomaster
+ ip link set dev $swp2 down nomaster
+ ip link set dev $swp1 down nomaster
+ ip link del dev br
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ h2=${NETIFS[p3]}
+ swp2=${NETIFS[p4]}
+
+ swp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ h3_mac=$(mac_get $h3)
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+ h3_create
+ switch_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ switch_destroy
+ h3_destroy
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+ping_ipv4()
+{
+ ping_test $h1 192.0.2.3 " from host 1"
+ ping_test $h2 192.0.2.3 " from host 2"
+}
+
+get_qdisc_backlog()
+{
+ qdisc_stats_get $swp3 11: .backlog
+}
+
+get_nmarked()
+{
+ qdisc_stats_get $swp3 11: .marked
+}
+
+get_qdisc_npackets()
+{
+ qdisc_stats_get $swp3 11: .packets
+}
+
+get_nmirrored()
+{
+ link_stats_get _drop_test tx packets
+}
+
+send_packets()
+{
+ local proto=$1; shift
+ local pkts=$1; shift
+
+ $MZ $h2 -p $PKTSZ -a own -b $h3_mac -A 192.0.2.2 -B 192.0.2.3 -t $proto -q -c $pkts "$@"
+}
+
+# This sends traffic in an attempt to build a backlog of $size. Returns 0 on
+# success. After 10 failed attempts it bails out and returns 1. It dumps the
+# backlog size to stdout.
+build_backlog()
+{
+ local size=$1; shift
+ local proto=$1; shift
+
+ local i=0
+
+ while :; do
+ local cur=$(get_qdisc_backlog)
+ local diff=$((size - cur))
+ local pkts=$(((diff + PKTSZ - 1) / PKTSZ))
+
+ if ((cur >= size)); then
+ echo $cur
+ return 0
+ elif ((i++ > 10)); then
+ echo $cur
+ return 1
+ fi
+
+ send_packets $proto $pkts "$@"
+ sleep 1
+ done
+}
+
+check_marking()
+{
+ local cond=$1; shift
+
+ local npackets_0=$(get_qdisc_npackets)
+ local nmarked_0=$(get_nmarked)
+ sleep 5
+ local npackets_1=$(get_qdisc_npackets)
+ local nmarked_1=$(get_nmarked)
+
+ local nmarked_d=$((nmarked_1 - nmarked_0))
+ local npackets_d=$((npackets_1 - npackets_0))
+ local pct=$((100 * nmarked_d / npackets_d))
+
+ echo $pct
+ ((pct $cond))
+}
+
+check_mirroring()
+{
+ local cond=$1; shift
+
+ local npackets_0=$(get_qdisc_npackets)
+ local nmirrored_0=$(get_nmirrored)
+ sleep 5
+ local npackets_1=$(get_qdisc_npackets)
+ local nmirrored_1=$(get_nmirrored)
+
+ local nmirrored_d=$((nmirrored_1 - nmirrored_0))
+ local npackets_d=$((npackets_1 - npackets_0))
+ local pct=$((100 * nmirrored_d / npackets_d))
+
+ echo $pct
+ ((pct $cond))
+}
+
+ecn_test_common()
+{
+ local name=$1; shift
+ local limit=$1; shift
+ local backlog
+ local pct
+
+ # Build the below-the-limit backlog using UDP. We could use TCP just
+ # fine, but this way we get a proof that UDP is accepted when queue
+ # length is below the limit. The main stream is using TCP, and if the
+ # limit is misconfigured, we would see this traffic being ECN marked.
+ RET=0
+ backlog=$(build_backlog $((2 * limit / 3)) udp)
+ check_err $? "Could not build the requested backlog"
+ pct=$(check_marking "== 0")
+ check_err $? "backlog $backlog / $limit Got $pct% marked packets, expected == 0."
+ log_test "$name backlog < limit"
+
+ # Now push TCP, because non-TCP traffic would be early-dropped after the
+ # backlog crosses the limit, and we want to make sure that the backlog
+ # is above the limit.
+ RET=0
+ backlog=$(build_backlog $((3 * limit / 2)) tcp tos=0x01)
+ check_err $? "Could not build the requested backlog"
+ pct=$(check_marking ">= 95")
+ check_err $? "backlog $backlog / $limit Got $pct% marked packets, expected >= 95."
+ log_test "$name backlog > limit"
+}
+
+do_ecn_test()
+{
+ local limit=$1; shift
+ local name=ECN
+
+ $MZ $h1 -p $PKTSZ -A 192.0.2.1 -B 192.0.2.3 -c 0 \
+ -a own -b $h3_mac -t tcp -q tos=0x01 &
+ sleep 1
+
+ ecn_test_common "$name" $limit
+
+ # Up there we saw that UDP gets accepted when backlog is below the
+ # limit. Now that it is above, it should all get dropped, and backlog
+ # building should fail.
+ RET=0
+ build_backlog $((2 * limit)) udp >/dev/null
+ check_fail $? "UDP traffic went into backlog instead of being early-dropped"
+ log_test "$name backlog > limit: UDP early-dropped"
+
+ stop_traffic
+ sleep 1
+}
+
+do_ecn_nodrop_test()
+{
+ local limit=$1; shift
+ local name="ECN nodrop"
+
+ $MZ $h1 -p $PKTSZ -A 192.0.2.1 -B 192.0.2.3 -c 0 \
+ -a own -b $h3_mac -t tcp -q tos=0x01 &
+ sleep 1
+
+ ecn_test_common "$name" $limit
+
+ # Up there we saw that UDP gets accepted when backlog is below the
+ # limit. Now that it is above, in nodrop mode, make sure it goes to
+ # backlog as well.
+ RET=0
+ build_backlog $((2 * limit)) udp >/dev/null
+ check_err $? "UDP traffic was early-dropped instead of getting into backlog"
+ log_test "$name backlog > limit: UDP not dropped"
+
+ stop_traffic
+ sleep 1
+}
+
+do_red_test()
+{
+ local limit=$1; shift
+ local backlog
+ local pct
+
+ # Use ECN-capable TCP to verify there's no marking even though the queue
+ # is above limit.
+ $MZ $h1 -p $PKTSZ -A 192.0.2.1 -B 192.0.2.3 -c 0 \
+ -a own -b $h3_mac -t tcp -q tos=0x01 &
+
+ # Pushing below the queue limit should work.
+ RET=0
+ backlog=$(build_backlog $((2 * limit / 3)) tcp tos=0x01)
+ check_err $? "Could not build the requested backlog"
+ pct=$(check_marking "== 0")
+ check_err $? "backlog $backlog / $limit Got $pct% marked packets, expected == 0."
+ log_test "RED backlog < limit"
+
+ # Pushing above should not.
+ RET=0
+ backlog=$(build_backlog $((3 * limit / 2)) tcp tos=0x01)
+ check_fail $? "Traffic went into backlog instead of being early-dropped"
+ pct=$(check_marking "== 0")
+ check_err $? "backlog $backlog / $limit Got $pct% marked packets, expected == 0."
+ log_test "RED backlog > limit"
+
+ stop_traffic
+ sleep 1
+}
+
+do_red_qevent_test()
+{
+ local limit=$1; shift
+ local backlog
+ local base
+ local now
+ local pct
+
+ RET=0
+
+ $MZ $h1 -p $PKTSZ -A 192.0.2.1 -B 192.0.2.3 -c 0 \
+ -a own -b $h3_mac -t udp -q &
+ sleep 1
+
+ tc filter add block 10 pref 1234 handle 102 matchall skip_hw \
+ action mirred egress mirror dev _drop_test
+
+ # Push to the queue until it's at the limit. The configured limit is
+ # rounded by the qdisc, so this is the best we can do to get to the real
+ # limit.
+ build_backlog $((3 * limit / 2)) udp >/dev/null
+
+ base=$(get_nmirrored)
+ send_packets udp 100
+ sleep 1
+ now=$(get_nmirrored)
+ ((now >= base + 100))
+ check_err $? "Dropped packets not observed: 100 expected, $((now - base)) seen"
+
+ tc filter del block 10 pref 1234 handle 102 matchall
+
+ base=$(get_nmirrored)
+ send_packets udp 100
+ sleep 1
+ now=$(get_nmirrored)
+ ((now == base))
+ check_err $? "Dropped packets still observed: 0 expected, $((now - base)) seen"
+
+ log_test "RED early_dropped packets mirrored"
+
+ stop_traffic
+ sleep 1
+}
+
+do_ecn_qevent_test()
+{
+ local limit=$1; shift
+ local name=ECN
+
+ RET=0
+
+ $MZ $h1 -p $PKTSZ -A 192.0.2.1 -B 192.0.2.3 -c 0 \
+ -a own -b $h3_mac -t tcp -q tos=0x01 &
+ sleep 1
+
+ tc filter add block 10 pref 1234 handle 102 matchall skip_hw \
+ action mirred egress mirror dev _drop_test
+
+ backlog=$(build_backlog $((2 * limit / 3)) tcp tos=0x01)
+ check_err $? "Could not build the requested backlog"
+ pct=$(check_mirroring "== 0")
+ check_err $? "backlog $backlog / $limit Got $pct% mirrored packets, expected == 0."
+
+ backlog=$(build_backlog $((3 * limit / 2)) tcp tos=0x01)
+ check_err $? "Could not build the requested backlog"
+ pct=$(check_mirroring ">= 95")
+ check_err $? "backlog $backlog / $limit Got $pct% mirrored packets, expected >= 95."
+
+ tc filter del block 10 pref 1234 handle 102 matchall
+
+ log_test "ECN marked packets mirrored"
+
+ stop_traffic
+ sleep 1
+}
+
+install_qdisc()
+{
+ local -a args=("$@")
+
+ tc qdisc replace dev $swp3 parent 1:1 handle 11: red \
+ limit 1M avpkt $PKTSZ probability 1 \
+ min $BACKLOG max $((BACKLOG + 1)) burst 38 "${args[@]}"
+ sleep 1
+}
+
+uninstall_qdisc()
+{
+ tc qdisc del dev $swp3 parent 1:1
+}
+
+ecn_test()
+{
+ install_qdisc ecn
+ do_ecn_test $BACKLOG
+ uninstall_qdisc
+}
+
+ecn_nodrop_test()
+{
+ install_qdisc ecn nodrop
+ do_ecn_nodrop_test $BACKLOG
+ uninstall_qdisc
+}
+
+red_test()
+{
+ install_qdisc
+ do_red_test $BACKLOG
+ uninstall_qdisc
+}
+
+red_qevent_test()
+{
+ install_qdisc qevent early_drop block 10
+ do_red_qevent_test $BACKLOG
+ uninstall_qdisc
+}
+
+ecn_qevent_test()
+{
+ install_qdisc ecn qevent mark block 10
+ do_ecn_qevent_test $BACKLOG
+ uninstall_qdisc
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/sch_tbf_core.sh b/tools/testing/selftests/net/forwarding/sch_tbf_core.sh
new file mode 100644
index 000000000..d1f26cb7c
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/sch_tbf_core.sh
@@ -0,0 +1,233 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# This test sends a stream of traffic from H1 through a switch, to H2. On the
+# egress port from the switch ($swp2), a shaper is installed. The test verifies
+# that the rates on the port match the configured shaper.
+#
+# In order to test per-class shaping, $swp2 actually contains TBF under PRIO or
+# ETS, with two different configurations. Traffic is prioritized using 802.1p.
+#
+# +-------------------------------------------+
+# | H1 |
+# | + $h1.10 $h1.11 + |
+# | | 192.0.2.1/28 192.0.2.17/28 | |
+# | | | |
+# | \______________ _____________/ |
+# | \ / |
+# | + $h1 |
+# +---------------------|---------------------+
+# |
+# +---------------------|---------------------+
+# | SW + $swp1 |
+# | _______________/ \_______________ |
+# | / \ |
+# | +-|--------------+ +--------------|-+ |
+# | | + $swp1.10 | | $swp1.11 + | |
+# | | | | | |
+# | | BR10 | | BR11 | |
+# | | | | | |
+# | | + $swp2.10 | | $swp2.11 + | |
+# | +-|--------------+ +--------------|-+ |
+# | \_______________ ______________/ |
+# | \ / |
+# | + $swp2 |
+# +---------------------|---------------------+
+# |
+# +---------------------|---------------------+
+# | H2 + $h2 |
+# | ______________/ \______________ |
+# | / \ |
+# | | | |
+# | + $h2.10 $h2.11 + |
+# | 192.0.2.2/28 192.0.2.18/28 |
+# +-------------------------------------------+
+
+NUM_NETIFS=4
+CHECK_TC="yes"
+source $lib_dir/lib.sh
+
+ipaddr()
+{
+ local host=$1; shift
+ local vlan=$1; shift
+
+ echo 192.0.2.$((16 * (vlan - 10) + host))
+}
+
+host_create()
+{
+ local dev=$1; shift
+ local host=$1; shift
+
+ simple_if_init $dev
+ mtu_set $dev 10000
+
+ vlan_create $dev 10 v$dev $(ipaddr $host 10)/28
+ ip link set dev $dev.10 type vlan egress 0:0
+
+ vlan_create $dev 11 v$dev $(ipaddr $host 11)/28
+ ip link set dev $dev.11 type vlan egress 0:1
+}
+
+host_destroy()
+{
+ local dev=$1; shift
+
+ vlan_destroy $dev 11
+ vlan_destroy $dev 10
+ mtu_restore $dev
+ simple_if_fini $dev
+}
+
+h1_create()
+{
+ host_create $h1 1
+}
+
+h1_destroy()
+{
+ host_destroy $h1
+}
+
+h2_create()
+{
+ host_create $h2 2
+
+ tc qdisc add dev $h2 clsact
+ tc filter add dev $h2 ingress pref 1010 prot 802.1q \
+ flower $TCFLAGS vlan_id 10 action pass
+ tc filter add dev $h2 ingress pref 1011 prot 802.1q \
+ flower $TCFLAGS vlan_id 11 action pass
+}
+
+h2_destroy()
+{
+ tc qdisc del dev $h2 clsact
+ host_destroy $h2
+}
+
+switch_create()
+{
+ local intf
+ local vlan
+
+ ip link add dev br10 type bridge
+ ip link add dev br11 type bridge
+
+ for intf in $swp1 $swp2; do
+ ip link set dev $intf up
+ mtu_set $intf 10000
+
+ for vlan in 10 11; do
+ vlan_create $intf $vlan
+ ip link set dev $intf.$vlan master br$vlan
+ ip link set dev $intf.$vlan up
+ done
+ done
+
+ for vlan in 10 11; do
+ ip link set dev $swp1.$vlan type vlan ingress 0:0 1:1
+ done
+
+ ip link set dev br10 up
+ ip link set dev br11 up
+}
+
+switch_destroy()
+{
+ local intf
+ local vlan
+
+ # A test may have been interrupted mid-run, with Qdisc installed. Delete
+ # it here.
+ tc qdisc del dev $swp2 root 2>/dev/null
+
+ ip link set dev br11 down
+ ip link set dev br10 down
+
+ for intf in $swp2 $swp1; do
+ for vlan in 11 10; do
+ ip link set dev $intf.$vlan down
+ ip link set dev $intf.$vlan nomaster
+ vlan_destroy $intf $vlan
+ done
+
+ mtu_restore $intf
+ ip link set dev $intf down
+ done
+
+ ip link del dev br11
+ ip link del dev br10
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ swp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ swp4=${NETIFS[p7]}
+ swp5=${NETIFS[p8]}
+
+ h2_mac=$(mac_get $h2)
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+ switch_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ switch_destroy
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+ping_ipv4()
+{
+ ping_test $h1.10 $(ipaddr 2 10) " vlan 10"
+ ping_test $h1.11 $(ipaddr 2 11) " vlan 11"
+}
+
+tbf_get_counter()
+{
+ local vlan=$1; shift
+
+ tc_rule_stats_get $h2 10$vlan ingress .bytes
+}
+
+do_tbf_test()
+{
+ local vlan=$1; shift
+ local mbit=$1; shift
+
+ start_traffic $h1.$vlan $(ipaddr 1 $vlan) $(ipaddr 2 $vlan) $h2_mac
+ sleep 5 # Wait for the burst to dwindle
+
+ local t2=$(busywait_for_counter 1000 +1 tbf_get_counter $vlan)
+ sleep 10
+ local t3=$(tbf_get_counter $vlan)
+ stop_traffic
+
+ RET=0
+
+ # Note: TBF uses 10^6 Mbits, not 2^20 ones.
+ local er=$((mbit * 1000 * 1000))
+ local nr=$(rate $t2 $t3 10)
+ local nr_pct=$((100 * (nr - er) / er))
+ ((-5 <= nr_pct && nr_pct <= 5))
+ check_err $? "Expected rate $(humanize $er), got $(humanize $nr), which is $nr_pct% off. Required accuracy is +-5%."
+
+ log_test "TC $((vlan - 10)): TBF rate ${mbit}Mbit"
+}
diff --git a/tools/testing/selftests/net/forwarding/sch_tbf_ets.sh b/tools/testing/selftests/net/forwarding/sch_tbf_ets.sh
new file mode 100755
index 000000000..84fb6cab8
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/sch_tbf_ets.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+QDISC="ets strict"
+: ${lib_dir:=.}
+source $lib_dir/sch_tbf_etsprio.sh
diff --git a/tools/testing/selftests/net/forwarding/sch_tbf_etsprio.sh b/tools/testing/selftests/net/forwarding/sch_tbf_etsprio.sh
new file mode 100644
index 000000000..8bd85da19
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/sch_tbf_etsprio.sh
@@ -0,0 +1,39 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+ ping_ipv4
+ tbf_test
+"
+source $lib_dir/sch_tbf_core.sh
+
+tbf_test_one()
+{
+ local bs=$1; shift
+
+ tc qdisc replace dev $swp2 parent 10:3 handle 103: tbf \
+ rate 400Mbit burst $bs limit 1M
+ tc qdisc replace dev $swp2 parent 10:2 handle 102: tbf \
+ rate 800Mbit burst $bs limit 1M
+
+ do_tbf_test 10 400 $bs
+ do_tbf_test 11 800 $bs
+}
+
+tbf_test()
+{
+ # This test is used for both ETS and PRIO. Even though we only need two
+ # bands, PRIO demands a minimum of three.
+ tc qdisc add dev $swp2 root handle 10: $QDISC 3 priomap 2 1 0
+ tbf_test_one 128K
+ tc qdisc del dev $swp2 root
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/sch_tbf_prio.sh b/tools/testing/selftests/net/forwarding/sch_tbf_prio.sh
new file mode 100755
index 000000000..9c8cb1cb9
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/sch_tbf_prio.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+QDISC="prio bands"
+: ${lib_dir:=.}
+source $lib_dir/sch_tbf_etsprio.sh
diff --git a/tools/testing/selftests/net/forwarding/sch_tbf_root.sh b/tools/testing/selftests/net/forwarding/sch_tbf_root.sh
new file mode 100755
index 000000000..72aa21ba8
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/sch_tbf_root.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+ ping_ipv4
+ tbf_test
+"
+: ${lib_dir:=.}
+source $lib_dir/sch_tbf_core.sh
+
+tbf_test_one()
+{
+ local bs=$1; shift
+
+ tc qdisc replace dev $swp2 root handle 108: tbf \
+ rate 400Mbit burst $bs limit 1M
+ do_tbf_test 10 400 $bs
+}
+
+tbf_test()
+{
+ tbf_test_one 128K
+ tc qdisc del dev $swp2 root
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/settings b/tools/testing/selftests/net/forwarding/settings
new file mode 100644
index 000000000..e7b941753
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/settings
@@ -0,0 +1 @@
+timeout=0
diff --git a/tools/testing/selftests/net/forwarding/skbedit_priority.sh b/tools/testing/selftests/net/forwarding/skbedit_priority.sh
new file mode 100755
index 000000000..bde11dc27
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/skbedit_priority.sh
@@ -0,0 +1,170 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test sends traffic from H1 to H2. Either on ingress of $swp1, or on
+# egress of $swp2, the traffic is acted upon by an action skbedit priority. The
+# new priority should be taken into account when classifying traffic on the PRIO
+# qdisc at $swp2. The test verifies that for different priority values, the
+# traffic ends up in expected PRIO band.
+#
+# +----------------------+ +----------------------+
+# | H1 | | H2 |
+# | + $h1 | | $h2 + |
+# | | 192.0.2.1/28 | | 192.0.2.2/28 | |
+# +----|-----------------+ +----------------|-----+
+# | |
+# +----|----------------------------------------------------------------|-----+
+# | SW | | |
+# | +-|----------------------------------------------------------------|-+ |
+# | | + $swp1 BR $swp2 + | |
+# | | PRIO | |
+# | +--------------------------------------------------------------------+ |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+ ping_ipv4
+ test_ingress
+ test_egress
+"
+
+NUM_NETIFS=4
+source lib.sh
+
+: ${HIT_TIMEOUT:=2000} # ms
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/28
+}
+
+h1_destroy()
+{
+ simple_if_fini $h1 192.0.2.1/28
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.2/28
+}
+
+h2_destroy()
+{
+ simple_if_fini $h2 192.0.2.2/28
+}
+
+switch_create()
+{
+ ip link add name br1 up type bridge vlan_filtering 1
+ ip link set dev $swp1 master br1
+ ip link set dev $swp1 up
+ ip link set dev $swp2 master br1
+ ip link set dev $swp2 up
+
+ tc qdisc add dev $swp1 clsact
+ tc qdisc add dev $swp2 clsact
+ tc qdisc add dev $swp2 root handle 10: \
+ prio bands 8 priomap 7 6 5 4 3 2 1 0
+}
+
+switch_destroy()
+{
+ tc qdisc del dev $swp2 root
+ tc qdisc del dev $swp2 clsact
+ tc qdisc del dev $swp1 clsact
+
+ ip link set dev $swp2 down
+ ip link set dev $swp2 nomaster
+ ip link set dev $swp1 down
+ ip link set dev $swp1 nomaster
+ ip link del dev br1
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ h2mac=$(mac_get $h2)
+
+ vrf_prepare
+ h1_create
+ h2_create
+ switch_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ switch_destroy
+ h2_destroy
+ h1_destroy
+ vrf_cleanup
+}
+
+ping_ipv4()
+{
+ ping_test $h1 192.0.2.2
+}
+
+test_skbedit_priority_one()
+{
+ local locus=$1; shift
+ local prio=$1; shift
+ local classid=$1; shift
+
+ RET=0
+
+ tc filter add $locus handle 101 pref 1 \
+ flower action skbedit priority $prio
+
+ local pkt0=$(qdisc_parent_stats_get $swp2 $classid .packets)
+ local pkt2=$(tc_rule_handle_stats_get "$locus" 101)
+ $MZ $h1 -t udp "sp=54321,dp=12345" -c 10 -d 20msec -p 100 \
+ -a own -b $h2mac -A 192.0.2.1 -B 192.0.2.2 -q
+
+ local pkt1
+ pkt1=$(busywait "$HIT_TIMEOUT" until_counter_is ">= $((pkt0 + 10))" \
+ qdisc_parent_stats_get $swp2 $classid .packets)
+ check_err $? "Expected to get 10 packets on class $classid, but got $((pkt1 - pkt0))."
+
+ local pkt3=$(tc_rule_handle_stats_get "$locus" 101)
+ ((pkt3 >= pkt2 + 10))
+ check_err $? "Expected to get 10 packets on skbedit rule but got $((pkt3 - pkt2))."
+
+ log_test "$locus skbedit priority $prio -> classid $classid"
+
+ tc filter del $locus pref 1
+}
+
+test_ingress()
+{
+ local prio
+
+ for prio in {0..7}; do
+ test_skbedit_priority_one "dev $swp1 ingress" \
+ $prio 10:$((8 - prio))
+ done
+}
+
+test_egress()
+{
+ local prio
+
+ for prio in {0..7}; do
+ test_skbedit_priority_one "dev $swp2 egress" \
+ $prio 10:$((8 - prio))
+ done
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_actions.sh b/tools/testing/selftests/net/forwarding/tc_actions.sh
new file mode 100755
index 000000000..1e2703128
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_actions.sh
@@ -0,0 +1,269 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="gact_drop_and_ok_test mirred_egress_redirect_test \
+ mirred_egress_mirror_test matchall_mirred_egress_mirror_test \
+ gact_trap_test mirred_egress_to_ingress_tcp_test"
+NUM_NETIFS=4
+source tc_common.sh
+source lib.sh
+
+tcflags="skip_hw"
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/24
+}
+
+h1_destroy()
+{
+ simple_if_fini $h1 192.0.2.1/24
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.2/24
+ tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+ tc qdisc del dev $h2 clsact
+ simple_if_fini $h2 192.0.2.2/24
+}
+
+switch_create()
+{
+ simple_if_init $swp1 192.0.2.2/24
+ tc qdisc add dev $swp1 clsact
+
+ simple_if_init $swp2 192.0.2.1/24
+}
+
+switch_destroy()
+{
+ simple_if_fini $swp2 192.0.2.1/24
+
+ tc qdisc del dev $swp1 clsact
+ simple_if_fini $swp1 192.0.2.2/24
+}
+
+mirred_egress_test()
+{
+ local action=$1
+ local protocol=$2
+ local classifier=$3
+ local classifier_args=$4
+
+ RET=0
+
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ $tcflags dst_ip 192.0.2.2 action drop
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "dev $h2 ingress" 101 1
+ check_fail $? "Matched without redirect rule inserted"
+
+ tc filter add dev $swp1 ingress protocol $protocol pref 1 handle 101 \
+ $classifier $tcflags $classifier_args \
+ action mirred egress $action dev $swp2
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "dev $h2 ingress" 101 1
+ check_err $? "Did not match incoming $action packet"
+
+ tc filter del dev $swp1 ingress protocol $protocol pref 1 handle 101 \
+ $classifier
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+
+ log_test "mirred egress $classifier $action ($tcflags)"
+}
+
+gact_drop_and_ok_test()
+{
+ RET=0
+
+ tc filter add dev $swp1 ingress protocol ip pref 2 handle 102 flower \
+ $tcflags dst_ip 192.0.2.2 action drop
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "dev $swp1 ingress" 102 1
+ check_err $? "Packet was not dropped"
+
+ tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 flower \
+ $tcflags dst_ip 192.0.2.2 action ok
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "dev $swp1 ingress" 101 1
+ check_err $? "Did not see passed packet"
+
+ tc_check_packets "dev $swp1 ingress" 102 2
+ check_fail $? "Packet was dropped and it should not reach here"
+
+ tc filter del dev $swp1 ingress protocol ip pref 2 handle 102 flower
+ tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
+
+ log_test "gact drop and ok ($tcflags)"
+}
+
+gact_trap_test()
+{
+ RET=0
+
+ if [[ "$tcflags" != "skip_sw" ]]; then
+ return 0;
+ fi
+
+ tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 flower \
+ skip_hw dst_ip 192.0.2.2 action drop
+ tc filter add dev $swp1 ingress protocol ip pref 3 handle 103 flower \
+ $tcflags dst_ip 192.0.2.2 action mirred egress redirect \
+ dev $swp2
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "dev $swp1 ingress" 101 1
+ check_fail $? "Saw packet without trap rule inserted"
+
+ tc filter add dev $swp1 ingress protocol ip pref 2 handle 102 flower \
+ $tcflags dst_ip 192.0.2.2 action trap
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "dev $swp1 ingress" 102 1
+ check_err $? "Packet was not trapped"
+
+ tc_check_packets "dev $swp1 ingress" 101 1
+ check_err $? "Did not see trapped packet"
+
+ tc filter del dev $swp1 ingress protocol ip pref 3 handle 103 flower
+ tc filter del dev $swp1 ingress protocol ip pref 2 handle 102 flower
+ tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
+
+ log_test "trap ($tcflags)"
+}
+
+mirred_egress_to_ingress_tcp_test()
+{
+ local tmpfile=$(mktemp) tmpfile1=$(mktemp)
+
+ RET=0
+ dd conv=sparse status=none if=/dev/zero bs=1M count=2 of=$tmpfile
+ tc filter add dev $h1 protocol ip pref 100 handle 100 egress flower \
+ $tcflags ip_proto tcp src_ip 192.0.2.1 dst_ip 192.0.2.2 \
+ action ct commit nat src addr 192.0.2.2 pipe \
+ action ct clear pipe \
+ action ct commit nat dst addr 192.0.2.1 pipe \
+ action ct clear pipe \
+ action skbedit ptype host pipe \
+ action mirred ingress redirect dev $h1
+ tc filter add dev $h1 protocol ip pref 101 handle 101 egress flower \
+ $tcflags ip_proto icmp \
+ action mirred ingress redirect dev $h1
+ tc filter add dev $h1 protocol ip pref 102 handle 102 ingress flower \
+ ip_proto icmp \
+ action drop
+
+ ip vrf exec v$h1 nc --recv-only -w10 -l -p 12345 -o $tmpfile1 &
+ local rpid=$!
+ ip vrf exec v$h1 nc -w1 --send-only 192.0.2.2 12345 <$tmpfile
+ wait -n $rpid
+ cmp -s $tmpfile $tmpfile1
+ check_err $? "server output check failed"
+
+ $MZ $h1 -c 10 -p 64 -a $h1mac -b $h1mac -A 192.0.2.1 -B 192.0.2.1 \
+ -t icmp "ping,id=42,seq=5" -q
+ tc_check_packets "dev $h1 egress" 101 10
+ check_err $? "didn't mirred redirect ICMP"
+ tc_check_packets "dev $h1 ingress" 102 10
+ check_err $? "didn't drop mirred ICMP"
+ local overlimits=$(tc_rule_stats_get ${h1} 101 egress .overlimits)
+ test ${overlimits} = 10
+ check_err $? "wrong overlimits, expected 10 got ${overlimits}"
+
+ tc filter del dev $h1 egress protocol ip pref 100 handle 100 flower
+ tc filter del dev $h1 egress protocol ip pref 101 handle 101 flower
+ tc filter del dev $h1 ingress protocol ip pref 102 handle 102 flower
+
+ rm -f $tmpfile $tmpfile1
+ log_test "mirred_egress_to_ingress_tcp ($tcflags)"
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ h1mac=$(mac_get $h1)
+ h2mac=$(mac_get $h2)
+
+ swp1origmac=$(mac_get $swp1)
+ swp2origmac=$(mac_get $swp2)
+ ip link set $swp1 address $h2mac
+ ip link set $swp2 address $h1mac
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+ switch_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ switch_destroy
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+
+ ip link set $swp2 address $swp2origmac
+ ip link set $swp1 address $swp1origmac
+}
+
+mirred_egress_redirect_test()
+{
+ mirred_egress_test "redirect" "ip" "flower" "dst_ip 192.0.2.2"
+}
+
+mirred_egress_mirror_test()
+{
+ mirred_egress_test "mirror" "ip" "flower" "dst_ip 192.0.2.2"
+}
+
+matchall_mirred_egress_mirror_test()
+{
+ mirred_egress_test "mirror" "all" "matchall" ""
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+tc_offload_check
+if [[ $? -ne 0 ]]; then
+ log_info "Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ tests_run
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_chains.sh b/tools/testing/selftests/net/forwarding/tc_chains.sh
new file mode 100755
index 000000000..2934fb5ed
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_chains.sh
@@ -0,0 +1,205 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="unreachable_chain_test gact_goto_chain_test create_destroy_chain \
+ template_filter_fits"
+NUM_NETIFS=2
+source tc_common.sh
+source lib.sh
+
+tcflags="skip_hw"
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/24
+}
+
+h1_destroy()
+{
+ simple_if_fini $h1 192.0.2.1/24
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.2/24
+ tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+ tc qdisc del dev $h2 clsact
+ simple_if_fini $h2 192.0.2.2/24
+}
+
+unreachable_chain_test()
+{
+ RET=0
+
+ tc filter add dev $h2 ingress chain 1 protocol ip pref 1 handle 1101 \
+ flower $tcflags dst_mac $h2mac action drop
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "dev $h2 ingress" 1101 1
+ check_fail $? "matched on filter in unreachable chain"
+
+ tc filter del dev $h2 ingress chain 1 protocol ip pref 1 handle 1101 \
+ flower
+
+ log_test "unreachable chain ($tcflags)"
+}
+
+gact_goto_chain_test()
+{
+ RET=0
+
+ tc filter add dev $h2 ingress chain 1 protocol ip pref 1 handle 1101 \
+ flower $tcflags dst_mac $h2mac action drop
+ tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+ $tcflags dst_mac $h2mac action drop
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ $tcflags dst_mac $h2mac action goto chain 1
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "dev $h2 ingress" 102 1
+ check_fail $? "Matched on a wrong filter"
+
+ tc_check_packets "dev $h2 ingress" 101 1
+ check_err $? "Did not match on correct filter with goto chain action"
+
+ tc_check_packets "dev $h2 ingress" 1101 1
+ check_err $? "Did not match on correct filter in chain 1"
+
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+ tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+ tc filter del dev $h2 ingress chain 1 protocol ip pref 1 handle 1101 \
+ flower
+
+ log_test "gact goto chain ($tcflags)"
+}
+
+create_destroy_chain()
+{
+ RET=0
+
+ tc chain add dev $h2 ingress
+ check_err $? "Failed to create default chain"
+
+ output="$(tc -j chain get dev $h2 ingress)"
+ check_err $? "Failed to get default chain"
+
+ echo $output | jq -e ".[] | select(.chain == 0)" &> /dev/null
+ check_err $? "Unexpected output for default chain"
+
+ tc chain add dev $h2 ingress chain 1
+ check_err $? "Failed to create chain 1"
+
+ output="$(tc -j chain get dev $h2 ingress chain 1)"
+ check_err $? "Failed to get chain 1"
+
+ echo $output | jq -e ".[] | select(.chain == 1)" &> /dev/null
+ check_err $? "Unexpected output for chain 1"
+
+ output="$(tc -j chain show dev $h2 ingress)"
+ check_err $? "Failed to dump chains"
+
+ echo $output | jq -e ".[] | select(.chain == 0)" &> /dev/null
+ check_err $? "Can't find default chain in dump"
+
+ echo $output | jq -e ".[] | select(.chain == 1)" &> /dev/null
+ check_err $? "Can't find chain 1 in dump"
+
+ tc chain del dev $h2 ingress
+ check_err $? "Failed to destroy default chain"
+
+ tc chain del dev $h2 ingress chain 1
+ check_err $? "Failed to destroy chain 1"
+
+ log_test "create destroy chain"
+}
+
+template_filter_fits()
+{
+ RET=0
+
+ tc chain add dev $h2 ingress protocol ip \
+ flower dst_mac 00:00:00:00:00:00/FF:FF:FF:FF:FF:FF &> /dev/null
+ tc chain add dev $h2 ingress chain 1 protocol ip \
+ flower src_mac 00:00:00:00:00:00/FF:FF:FF:FF:FF:FF &> /dev/null
+
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 1101 \
+ flower dst_mac $h2mac action drop
+ check_err $? "Failed to insert filter which fits template"
+
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 1102 \
+ flower src_mac $h2mac action drop &> /dev/null
+ check_fail $? "Incorrectly succeded to insert filter which does not template"
+
+ tc filter add dev $h2 ingress chain 1 protocol ip pref 1 handle 1101 \
+ flower src_mac $h2mac action drop
+ check_err $? "Failed to insert filter which fits template"
+
+ tc filter add dev $h2 ingress chain 1 protocol ip pref 1 handle 1102 \
+ flower dst_mac $h2mac action drop &> /dev/null
+ check_fail $? "Incorrectly succeded to insert filter which does not template"
+
+ tc filter del dev $h2 ingress chain 1 protocol ip pref 1 handle 1102 \
+ flower &> /dev/null
+ tc filter del dev $h2 ingress chain 1 protocol ip pref 1 handle 1101 \
+ flower &> /dev/null
+
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 1102 \
+ flower &> /dev/null
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 1101 \
+ flower &> /dev/null
+
+ tc chain del dev $h2 ingress chain 1
+ tc chain del dev $h2 ingress
+
+ log_test "template filter fits"
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ h2=${NETIFS[p2]}
+ h1mac=$(mac_get $h1)
+ h2mac=$(mac_get $h2)
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+check_tc_chain_support
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+tc_offload_check
+if [[ $? -ne 0 ]]; then
+ log_info "Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ tests_run
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_common.sh b/tools/testing/selftests/net/forwarding/tc_common.sh
new file mode 100644
index 000000000..0e18e8be6
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_common.sh
@@ -0,0 +1,26 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+CHECK_TC="yes"
+
+# Can be overridden by the configuration file. See lib.sh
+TC_HIT_TIMEOUT=${TC_HIT_TIMEOUT:=1000} # ms
+
+tc_check_packets()
+{
+ local id=$1
+ local handle=$2
+ local count=$3
+
+ busywait "$TC_HIT_TIMEOUT" until_counter_is "== $count" \
+ tc_rule_handle_stats_get "$id" "$handle" > /dev/null
+}
+
+tc_check_packets_hitting()
+{
+ local id=$1
+ local handle=$2
+
+ busywait "$TC_HIT_TIMEOUT" until_counter_is "> 0" \
+ tc_rule_handle_stats_get "$id" "$handle" > /dev/null
+}
diff --git a/tools/testing/selftests/net/forwarding/tc_flower.sh b/tools/testing/selftests/net/forwarding/tc_flower.sh
new file mode 100755
index 000000000..b7cdf75ef
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_flower.sh
@@ -0,0 +1,411 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="match_dst_mac_test match_src_mac_test match_dst_ip_test \
+ match_src_ip_test match_ip_flags_test match_pcp_test match_vlan_test \
+ match_ip_tos_test match_indev_test match_ip_ttl_test"
+NUM_NETIFS=2
+source tc_common.sh
+source lib.sh
+
+tcflags="skip_hw"
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/24 198.51.100.1/24
+}
+
+h1_destroy()
+{
+ simple_if_fini $h1 192.0.2.1/24 198.51.100.1/24
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.2/24 198.51.100.2/24
+ tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+ tc qdisc del dev $h2 clsact
+ simple_if_fini $h2 192.0.2.2/24 198.51.100.2/24
+}
+
+match_dst_mac_test()
+{
+ local dummy_mac=de:ad:be:ef:aa:aa
+
+ RET=0
+
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ $tcflags dst_mac $dummy_mac action drop
+ tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+ $tcflags dst_mac $h2mac action drop
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "dev $h2 ingress" 101 1
+ check_fail $? "Matched on a wrong filter"
+
+ tc_check_packets "dev $h2 ingress" 102 0
+ check_fail $? "Did not match on correct filter"
+
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+ tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+
+ log_test "dst_mac match ($tcflags)"
+}
+
+match_src_mac_test()
+{
+ local dummy_mac=de:ad:be:ef:aa:aa
+
+ RET=0
+
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ $tcflags src_mac $dummy_mac action drop
+ tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+ $tcflags src_mac $h1mac action drop
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "dev $h2 ingress" 101 1
+ check_fail $? "Matched on a wrong filter"
+
+ tc_check_packets "dev $h2 ingress" 102 0
+ check_fail $? "Did not match on correct filter"
+
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+ tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+
+ log_test "src_mac match ($tcflags)"
+}
+
+match_dst_ip_test()
+{
+ RET=0
+
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ $tcflags dst_ip 198.51.100.2 action drop
+ tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+ $tcflags dst_ip 192.0.2.2 action drop
+ tc filter add dev $h2 ingress protocol ip pref 3 handle 103 flower \
+ $tcflags dst_ip 192.0.2.0/24 action drop
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "dev $h2 ingress" 101 1
+ check_fail $? "Matched on a wrong filter"
+
+ tc_check_packets "dev $h2 ingress" 102 1
+ check_err $? "Did not match on correct filter"
+
+ tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "dev $h2 ingress" 103 1
+ check_err $? "Did not match on correct filter with mask"
+
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+ tc filter del dev $h2 ingress protocol ip pref 3 handle 103 flower
+
+ log_test "dst_ip match ($tcflags)"
+}
+
+match_src_ip_test()
+{
+ RET=0
+
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ $tcflags src_ip 198.51.100.1 action drop
+ tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+ $tcflags src_ip 192.0.2.1 action drop
+ tc filter add dev $h2 ingress protocol ip pref 3 handle 103 flower \
+ $tcflags src_ip 192.0.2.0/24 action drop
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "dev $h2 ingress" 101 1
+ check_fail $? "Matched on a wrong filter"
+
+ tc_check_packets "dev $h2 ingress" 102 1
+ check_err $? "Did not match on correct filter"
+
+ tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "dev $h2 ingress" 103 1
+ check_err $? "Did not match on correct filter with mask"
+
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+ tc filter del dev $h2 ingress protocol ip pref 3 handle 103 flower
+
+ log_test "src_ip match ($tcflags)"
+}
+
+match_ip_flags_test()
+{
+ RET=0
+
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ $tcflags ip_flags frag action continue
+ tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+ $tcflags ip_flags firstfrag action continue
+ tc filter add dev $h2 ingress protocol ip pref 3 handle 103 flower \
+ $tcflags ip_flags nofirstfrag action continue
+ tc filter add dev $h2 ingress protocol ip pref 4 handle 104 flower \
+ $tcflags ip_flags nofrag action drop
+
+ $MZ $h1 -c 1 -p 1000 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip "frag=0" -q
+
+ tc_check_packets "dev $h2 ingress" 101 1
+ check_fail $? "Matched on wrong frag filter (nofrag)"
+
+ tc_check_packets "dev $h2 ingress" 102 1
+ check_fail $? "Matched on wrong firstfrag filter (nofrag)"
+
+ tc_check_packets "dev $h2 ingress" 103 1
+ check_err $? "Did not match on nofirstfrag filter (nofrag) "
+
+ tc_check_packets "dev $h2 ingress" 104 1
+ check_err $? "Did not match on nofrag filter (nofrag)"
+
+ $MZ $h1 -c 1 -p 1000 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip "frag=0,mf" -q
+
+ tc_check_packets "dev $h2 ingress" 101 1
+ check_err $? "Did not match on frag filter (1stfrag)"
+
+ tc_check_packets "dev $h2 ingress" 102 1
+ check_err $? "Did not match fistfrag filter (1stfrag)"
+
+ tc_check_packets "dev $h2 ingress" 103 1
+ check_err $? "Matched on wrong nofirstfrag filter (1stfrag)"
+
+ tc_check_packets "dev $h2 ingress" 104 1
+ check_err $? "Match on wrong nofrag filter (1stfrag)"
+
+ $MZ $h1 -c 1 -p 1000 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip "frag=256,mf" -q
+ $MZ $h1 -c 1 -p 1000 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip "frag=256" -q
+
+ tc_check_packets "dev $h2 ingress" 101 3
+ check_err $? "Did not match on frag filter (no1stfrag)"
+
+ tc_check_packets "dev $h2 ingress" 102 1
+ check_err $? "Matched on wrong firstfrag filter (no1stfrag)"
+
+ tc_check_packets "dev $h2 ingress" 103 3
+ check_err $? "Did not match on nofirstfrag filter (no1stfrag)"
+
+ tc_check_packets "dev $h2 ingress" 104 1
+ check_err $? "Matched on nofrag filter (no1stfrag)"
+
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+ tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+ tc filter del dev $h2 ingress protocol ip pref 3 handle 103 flower
+ tc filter del dev $h2 ingress protocol ip pref 4 handle 104 flower
+
+ log_test "ip_flags match ($tcflags)"
+}
+
+match_pcp_test()
+{
+ RET=0
+
+ vlan_create $h2 85 v$h2 192.0.2.11/24
+
+ tc filter add dev $h2 ingress protocol 802.1q pref 1 handle 101 \
+ flower vlan_prio 6 $tcflags dst_mac $h2mac action drop
+ tc filter add dev $h2 ingress protocol 802.1q pref 2 handle 102 \
+ flower vlan_prio 7 $tcflags dst_mac $h2mac action drop
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -B 192.0.2.11 -Q 7:85 -t ip -q
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -B 192.0.2.11 -Q 0:85 -t ip -q
+
+ tc_check_packets "dev $h2 ingress" 101 0
+ check_err $? "Matched on specified PCP when should not"
+
+ tc_check_packets "dev $h2 ingress" 102 1
+ check_err $? "Did not match on specified PCP"
+
+ tc filter del dev $h2 ingress protocol 802.1q pref 2 handle 102 flower
+ tc filter del dev $h2 ingress protocol 802.1q pref 1 handle 101 flower
+
+ vlan_destroy $h2 85
+
+ log_test "PCP match ($tcflags)"
+}
+
+match_vlan_test()
+{
+ RET=0
+
+ vlan_create $h2 85 v$h2 192.0.2.11/24
+ vlan_create $h2 75 v$h2 192.0.2.10/24
+
+ tc filter add dev $h2 ingress protocol 802.1q pref 1 handle 101 \
+ flower vlan_id 75 $tcflags action drop
+ tc filter add dev $h2 ingress protocol 802.1q pref 2 handle 102 \
+ flower vlan_id 85 $tcflags action drop
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -B 192.0.2.11 -Q 0:85 -t ip -q
+
+ tc_check_packets "dev $h2 ingress" 101 0
+ check_err $? "Matched on specified VLAN when should not"
+
+ tc_check_packets "dev $h2 ingress" 102 1
+ check_err $? "Did not match on specified VLAN"
+
+ tc filter del dev $h2 ingress protocol 802.1q pref 2 handle 102 flower
+ tc filter del dev $h2 ingress protocol 802.1q pref 1 handle 101 flower
+
+ vlan_destroy $h2 75
+ vlan_destroy $h2 85
+
+ log_test "VLAN match ($tcflags)"
+}
+
+match_ip_tos_test()
+{
+ RET=0
+
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ $tcflags dst_ip 192.0.2.2 ip_tos 0x20 action drop
+ tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+ $tcflags dst_ip 192.0.2.2 ip_tos 0x18 action drop
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip tos=18 -q
+
+ tc_check_packets "dev $h2 ingress" 101 1
+ check_fail $? "Matched on a wrong filter (0x18)"
+
+ tc_check_packets "dev $h2 ingress" 102 1
+ check_err $? "Did not match on correct filter (0x18)"
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip tos=20 -q
+
+ tc_check_packets "dev $h2 ingress" 102 2
+ check_fail $? "Matched on a wrong filter (0x20)"
+
+ tc_check_packets "dev $h2 ingress" 101 1
+ check_err $? "Did not match on correct filter (0x20)"
+
+ tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+
+ log_test "ip_tos match ($tcflags)"
+}
+
+match_ip_ttl_test()
+{
+ RET=0
+
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ $tcflags dst_ip 192.0.2.2 ip_ttl 63 action drop
+ tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+ $tcflags dst_ip 192.0.2.2 action drop
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip "ttl=63" -q
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip "ttl=63,mf,frag=256" -q
+
+ tc_check_packets "dev $h2 ingress" 102 1
+ check_fail $? "Matched on the wrong filter (no check on ttl)"
+
+ tc_check_packets "dev $h2 ingress" 101 2
+ check_err $? "Did not match on correct filter (ttl=63)"
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip "ttl=255" -q
+
+ tc_check_packets "dev $h2 ingress" 101 3
+ check_fail $? "Matched on a wrong filter (ttl=63)"
+
+ tc_check_packets "dev $h2 ingress" 102 1
+ check_err $? "Did not match on correct filter (no check on ttl)"
+
+ tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+
+ log_test "ip_ttl match ($tcflags)"
+}
+
+match_indev_test()
+{
+ RET=0
+
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ $tcflags indev $h1 dst_mac $h2mac action drop
+ tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+ $tcflags indev $h2 dst_mac $h2mac action drop
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "dev $h2 ingress" 101 1
+ check_fail $? "Matched on a wrong filter"
+
+ tc_check_packets "dev $h2 ingress" 102 1
+ check_err $? "Did not match on correct filter"
+
+ tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+
+ log_test "indev match ($tcflags)"
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ h2=${NETIFS[p2]}
+ h1mac=$(mac_get $h1)
+ h2mac=$(mac_get $h2)
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+tc_offload_check
+if [[ $? -ne 0 ]]; then
+ log_info "Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ tests_run
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_flower_router.sh b/tools/testing/selftests/net/forwarding/tc_flower_router.sh
new file mode 100755
index 000000000..4aee9c9e6
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_flower_router.sh
@@ -0,0 +1,172 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="match_indev_egress_test"
+NUM_NETIFS=6
+source tc_common.sh
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.1.1/24
+
+ ip route add 192.0.2.0/24 vrf v$h1 nexthop via 192.0.1.2
+ ip route add 192.0.3.0/24 vrf v$h1 nexthop via 192.0.1.2
+}
+
+h1_destroy()
+{
+ ip route del 192.0.3.0/24 vrf v$h1
+ ip route del 192.0.2.0/24 vrf v$h1
+
+ simple_if_fini $h1 192.0.1.1/24
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.1/24
+
+ ip route add 192.0.1.0/24 vrf v$h2 nexthop via 192.0.2.2
+ ip route add 192.0.3.0/24 vrf v$h2 nexthop via 192.0.2.2
+}
+
+h2_destroy()
+{
+ ip route del 192.0.3.0/24 vrf v$h2
+ ip route del 192.0.1.0/24 vrf v$h2
+
+ simple_if_fini $h2 192.0.2.1/24
+}
+
+h3_create()
+{
+ simple_if_init $h3 192.0.3.1/24
+
+ ip route add 192.0.1.0/24 vrf v$h3 nexthop via 192.0.3.2
+ ip route add 192.0.2.0/24 vrf v$h3 nexthop via 192.0.3.2
+}
+
+h3_destroy()
+{
+ ip route del 192.0.2.0/24 vrf v$h3
+ ip route del 192.0.1.0/24 vrf v$h3
+
+ simple_if_fini $h3 192.0.3.1/24
+}
+
+
+router_create()
+{
+ ip link set dev $rp1 up
+ ip link set dev $rp2 up
+ ip link set dev $rp3 up
+
+ tc qdisc add dev $rp3 clsact
+
+ ip address add 192.0.1.2/24 dev $rp1
+ ip address add 192.0.2.2/24 dev $rp2
+ ip address add 192.0.3.2/24 dev $rp3
+}
+
+router_destroy()
+{
+ ip address del 192.0.3.2/24 dev $rp3
+ ip address del 192.0.2.2/24 dev $rp2
+ ip address del 192.0.1.2/24 dev $rp1
+
+ tc qdisc del dev $rp3 clsact
+
+ ip link set dev $rp3 down
+ ip link set dev $rp2 down
+ ip link set dev $rp1 down
+}
+
+match_indev_egress_test()
+{
+ RET=0
+
+ tc filter add dev $rp3 egress protocol ip pref 1 handle 101 flower \
+ $tcflags indev $rp1 dst_ip 192.0.3.1 action drop
+ tc filter add dev $rp3 egress protocol ip pref 2 handle 102 flower \
+ $tcflags indev $rp2 dst_ip 192.0.3.1 action drop
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $rp1mac -A 192.0.1.1 -B 192.0.3.1 \
+ -t ip -q
+
+ tc_check_packets "dev $rp3 egress" 102 1
+ check_fail $? "Matched on a wrong filter"
+
+ tc_check_packets "dev $rp3 egress" 101 1
+ check_err $? "Did not match on correct filter"
+
+ $MZ $h2 -c 1 -p 64 -a $h2mac -b $rp2mac -A 192.0.2.1 -B 192.0.3.1 \
+ -t ip -q
+
+ tc_check_packets "dev $rp3 egress" 101 2
+ check_fail $? "Matched on a wrong filter"
+
+ tc_check_packets "dev $rp3 egress" 102 1
+ check_err $? "Did not match on correct filter"
+
+ tc filter del dev $rp3 egress protocol ip pref 2 handle 102 flower
+ tc filter del dev $rp3 egress protocol ip pref 1 handle 101 flower
+
+ log_test "indev egress match ($tcflags)"
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ rp1=${NETIFS[p2]}
+
+ h2=${NETIFS[p3]}
+ rp2=${NETIFS[p4]}
+
+ h3=${NETIFS[p5]}
+ rp3=${NETIFS[p6]}
+
+ h1mac=$(mac_get $h1)
+ rp1mac=$(mac_get $rp1)
+ h2mac=$(mac_get $h2)
+ rp2mac=$(mac_get $rp2)
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+ h3_create
+
+ router_create
+
+ forwarding_enable
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ forwarding_restore
+
+ router_destroy
+
+ h3_destroy
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tc_offload_check
+if [[ $? -ne 0 ]]; then
+ log_info "Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ tests_run
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_police.sh b/tools/testing/selftests/net/forwarding/tc_police.sh
new file mode 100755
index 000000000..eb09acdcb
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_police.sh
@@ -0,0 +1,385 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test tc-police action.
+#
+# +---------------------------------+
+# | H1 (vrf) |
+# | + $h1 |
+# | | 192.0.2.1/24 |
+# | | |
+# | | default via 192.0.2.2 |
+# +----|----------------------------+
+# |
+# +----|----------------------------------------------------------------------+
+# | SW | |
+# | + $rp1 |
+# | 192.0.2.2/24 |
+# | |
+# | 198.51.100.2/24 203.0.113.2/24 |
+# | + $rp2 + $rp3 |
+# | | | |
+# +----|-----------------------------------------|----------------------------+
+# | |
+# +----|----------------------------+ +----|----------------------------+
+# | | default via 198.51.100.2 | | | default via 203.0.113.2 |
+# | | | | | |
+# | | 198.51.100.1/24 | | | 203.0.113.1/24 |
+# | + $h2 | | + $h3 |
+# | H2 (vrf) | | H3 (vrf) |
+# +---------------------------------+ +---------------------------------+
+
+ALL_TESTS="
+ police_rx_test
+ police_tx_test
+ police_shared_test
+ police_rx_mirror_test
+ police_tx_mirror_test
+ police_mtu_rx_test
+ police_mtu_tx_test
+"
+NUM_NETIFS=6
+source tc_common.sh
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/24
+
+ ip -4 route add default vrf v$h1 nexthop via 192.0.2.2
+}
+
+h1_destroy()
+{
+ ip -4 route del default vrf v$h1 nexthop via 192.0.2.2
+
+ simple_if_fini $h1 192.0.2.1/24
+}
+
+h2_create()
+{
+ simple_if_init $h2 198.51.100.1/24
+
+ ip -4 route add default vrf v$h2 nexthop via 198.51.100.2
+
+ tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+ tc qdisc del dev $h2 clsact
+
+ ip -4 route del default vrf v$h2 nexthop via 198.51.100.2
+
+ simple_if_fini $h2 198.51.100.1/24
+}
+
+h3_create()
+{
+ simple_if_init $h3 203.0.113.1/24
+
+ ip -4 route add default vrf v$h3 nexthop via 203.0.113.2
+
+ tc qdisc add dev $h3 clsact
+}
+
+h3_destroy()
+{
+ tc qdisc del dev $h3 clsact
+
+ ip -4 route del default vrf v$h3 nexthop via 203.0.113.2
+
+ simple_if_fini $h3 203.0.113.1/24
+}
+
+router_create()
+{
+ ip link set dev $rp1 up
+ ip link set dev $rp2 up
+ ip link set dev $rp3 up
+
+ __addr_add_del $rp1 add 192.0.2.2/24
+ __addr_add_del $rp2 add 198.51.100.2/24
+ __addr_add_del $rp3 add 203.0.113.2/24
+
+ tc qdisc add dev $rp1 clsact
+ tc qdisc add dev $rp2 clsact
+}
+
+router_destroy()
+{
+ tc qdisc del dev $rp2 clsact
+ tc qdisc del dev $rp1 clsact
+
+ __addr_add_del $rp3 del 203.0.113.2/24
+ __addr_add_del $rp2 del 198.51.100.2/24
+ __addr_add_del $rp1 del 192.0.2.2/24
+
+ ip link set dev $rp3 down
+ ip link set dev $rp2 down
+ ip link set dev $rp1 down
+}
+
+police_common_test()
+{
+ local test_name=$1; shift
+
+ RET=0
+
+ # Rule to measure bandwidth on ingress of $h2
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action drop
+
+ mausezahn $h1 -a own -b $(mac_get $rp1) -A 192.0.2.1 -B 198.51.100.1 \
+ -t udp sp=12345,dp=54321 -p 1000 -c 0 -q &
+
+ local t0=$(tc_rule_stats_get $h2 1 ingress .bytes)
+ sleep 10
+ local t1=$(tc_rule_stats_get $h2 1 ingress .bytes)
+
+ local er=$((80 * 1000 * 1000))
+ local nr=$(rate $t0 $t1 10)
+ local nr_pct=$((100 * (nr - er) / er))
+ ((-10 <= nr_pct && nr_pct <= 10))
+ check_err $? "Expected rate $(humanize $er), got $(humanize $nr), which is $nr_pct% off. Required accuracy is +-10%."
+
+ log_test "$test_name"
+
+ { kill %% && wait %%; } 2>/dev/null
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+}
+
+police_rx_test()
+{
+ # Rule to police traffic destined to $h2 on ingress of $rp1
+ tc filter add dev $rp1 ingress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action police rate 80mbit burst 16k conform-exceed drop/ok
+
+ police_common_test "police on rx"
+
+ tc filter del dev $rp1 ingress protocol ip pref 1 handle 101 flower
+}
+
+police_tx_test()
+{
+ # Rule to police traffic destined to $h2 on egress of $rp2
+ tc filter add dev $rp2 egress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action police rate 80mbit burst 16k conform-exceed drop/ok
+
+ police_common_test "police on tx"
+
+ tc filter del dev $rp2 egress protocol ip pref 1 handle 101 flower
+}
+
+police_shared_common_test()
+{
+ local dport=$1; shift
+ local test_name=$1; shift
+
+ RET=0
+
+ mausezahn $h1 -a own -b $(mac_get $rp1) -A 192.0.2.1 -B 198.51.100.1 \
+ -t udp sp=12345,dp=$dport -p 1000 -c 0 -q &
+
+ local t0=$(tc_rule_stats_get $h2 1 ingress .bytes)
+ sleep 10
+ local t1=$(tc_rule_stats_get $h2 1 ingress .bytes)
+
+ local er=$((80 * 1000 * 1000))
+ local nr=$(rate $t0 $t1 10)
+ local nr_pct=$((100 * (nr - er) / er))
+ ((-10 <= nr_pct && nr_pct <= 10))
+ check_err $? "Expected rate $(humanize $er), got $(humanize $nr), which is $nr_pct% off. Required accuracy is +-10%."
+
+ log_test "$test_name"
+
+ { kill %% && wait %%; } 2>/dev/null
+}
+
+police_shared_test()
+{
+ # Rule to measure bandwidth on ingress of $h2
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp src_port 12345 \
+ action drop
+
+ # Rule to police traffic destined to $h2 on ingress of $rp1
+ tc filter add dev $rp1 ingress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action police rate 80mbit burst 16k conform-exceed drop/ok \
+ index 10
+
+ # Rule to police a different flow destined to $h2 on egress of $rp2
+ # using same policer
+ tc filter add dev $rp2 egress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 22222 \
+ action police index 10
+
+ police_shared_common_test 54321 "police with shared policer - rx"
+
+ police_shared_common_test 22222 "police with shared policer - tx"
+
+ tc filter del dev $rp2 egress protocol ip pref 1 handle 101 flower
+ tc filter del dev $rp1 ingress protocol ip pref 1 handle 101 flower
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+}
+
+police_mirror_common_test()
+{
+ local pol_if=$1; shift
+ local dir=$1; shift
+ local test_name=$1; shift
+
+ RET=0
+
+ # Rule to measure bandwidth on ingress of $h2
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action drop
+
+ # Rule to measure bandwidth of mirrored traffic on ingress of $h3
+ tc filter add dev $h3 ingress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action drop
+
+ # Rule to police traffic destined to $h2 and mirror to $h3
+ tc filter add dev $pol_if $dir protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action police rate 80mbit burst 16k conform-exceed drop/pipe \
+ action mirred egress mirror dev $rp3
+
+ mausezahn $h1 -a own -b $(mac_get $rp1) -A 192.0.2.1 -B 198.51.100.1 \
+ -t udp sp=12345,dp=54321 -p 1000 -c 0 -q &
+
+ local t0=$(tc_rule_stats_get $h2 1 ingress .bytes)
+ sleep 10
+ local t1=$(tc_rule_stats_get $h2 1 ingress .bytes)
+
+ local er=$((80 * 1000 * 1000))
+ local nr=$(rate $t0 $t1 10)
+ local nr_pct=$((100 * (nr - er) / er))
+ ((-10 <= nr_pct && nr_pct <= 10))
+ check_err $? "Expected rate $(humanize $er), got $(humanize $nr), which is $nr_pct% off. Required accuracy is +-10%."
+
+ local t0=$(tc_rule_stats_get $h3 1 ingress .bytes)
+ sleep 10
+ local t1=$(tc_rule_stats_get $h3 1 ingress .bytes)
+
+ local er=$((80 * 1000 * 1000))
+ local nr=$(rate $t0 $t1 10)
+ local nr_pct=$((100 * (nr - er) / er))
+ ((-10 <= nr_pct && nr_pct <= 10))
+ check_err $? "Expected rate $(humanize $er), got $(humanize $nr), which is $nr_pct% off. Required accuracy is +-10%."
+
+ log_test "$test_name"
+
+ { kill %% && wait %%; } 2>/dev/null
+ tc filter del dev $pol_if $dir protocol ip pref 1 handle 101 flower
+ tc filter del dev $h3 ingress protocol ip pref 1 handle 101 flower
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+}
+
+police_rx_mirror_test()
+{
+ police_mirror_common_test $rp1 ingress "police rx and mirror"
+}
+
+police_tx_mirror_test()
+{
+ police_mirror_common_test $rp2 egress "police tx and mirror"
+}
+
+police_mtu_common_test() {
+ RET=0
+
+ local test_name=$1; shift
+ local dev=$1; shift
+ local direction=$1; shift
+
+ tc filter add dev $dev $direction protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action police mtu 1042 conform-exceed drop/ok
+
+ # to count "conform" packets
+ tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+ dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+ action drop
+
+ mausezahn $h1 -a own -b $(mac_get $rp1) -A 192.0.2.1 -B 198.51.100.1 \
+ -t udp sp=12345,dp=54321 -p 1001 -c 10 -q
+
+ mausezahn $h1 -a own -b $(mac_get $rp1) -A 192.0.2.1 -B 198.51.100.1 \
+ -t udp sp=12345,dp=54321 -p 1000 -c 3 -q
+
+ tc_check_packets "dev $dev $direction" 101 13
+ check_err $? "wrong packet counter"
+
+ # "exceed" packets
+ local overlimits_t0=$(tc_rule_stats_get ${dev} 1 ${direction} .overlimits)
+ test ${overlimits_t0} = 10
+ check_err $? "wrong overlimits, expected 10 got ${overlimits_t0}"
+
+ # "conform" packets
+ tc_check_packets "dev $h2 ingress" 101 3
+ check_err $? "forwarding error"
+
+ tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+ tc filter del dev $dev $direction protocol ip pref 1 handle 101 flower
+
+ log_test "$test_name"
+}
+
+police_mtu_rx_test()
+{
+ police_mtu_common_test "police mtu (rx)" $rp1 ingress
+}
+
+police_mtu_tx_test()
+{
+ police_mtu_common_test "police mtu (tx)" $rp2 egress
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ rp1=${NETIFS[p2]}
+
+ rp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ rp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ vrf_prepare
+ forwarding_enable
+
+ h1_create
+ h2_create
+ h3_create
+ router_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ router_destroy
+ h3_destroy
+ h2_destroy
+ h1_destroy
+
+ forwarding_restore
+ vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_shblocks.sh b/tools/testing/selftests/net/forwarding/tc_shblocks.sh
new file mode 100755
index 000000000..772e00ac3
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_shblocks.sh
@@ -0,0 +1,152 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="shared_block_test match_indev_test"
+NUM_NETIFS=4
+source tc_common.sh
+source lib.sh
+
+tcflags="skip_hw"
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/24
+}
+
+h1_destroy()
+{
+ simple_if_fini $h1 192.0.2.1/24
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.1/24
+}
+
+h2_destroy()
+{
+ simple_if_fini $h2 192.0.2.1/24
+}
+
+switch_create()
+{
+ simple_if_init $swp1 192.0.2.2/24
+ tc qdisc add dev $swp1 ingress_block 22 egress_block 23 clsact
+
+ simple_if_init $swp2 192.0.2.2/24
+ tc qdisc add dev $swp2 ingress_block 22 egress_block 23 clsact
+}
+
+switch_destroy()
+{
+ tc qdisc del dev $swp2 clsact
+ simple_if_fini $swp2 192.0.2.2/24
+
+ tc qdisc del dev $swp1 clsact
+ simple_if_fini $swp1 192.0.2.2/24
+}
+
+shared_block_test()
+{
+ RET=0
+
+ tc filter add block 22 protocol ip pref 1 handle 101 flower \
+ $tcflags dst_ip 192.0.2.2 action drop
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $swmac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "block 22" 101 1
+ check_err $? "Did not match first incoming packet on a block"
+
+ $MZ $h2 -c 1 -p 64 -a $h2mac -b $swmac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "block 22" 101 2
+ check_err $? "Did not match second incoming packet on a block"
+
+ tc filter del block 22 protocol ip pref 1 handle 101 flower
+
+ log_test "shared block ($tcflags)"
+}
+
+match_indev_test()
+{
+ RET=0
+
+ tc filter add block 22 protocol ip pref 1 handle 101 flower \
+ $tcflags indev $swp1 dst_mac $swmac action drop
+ tc filter add block 22 protocol ip pref 2 handle 102 flower \
+ $tcflags indev $swp2 dst_mac $swmac action drop
+
+ $MZ $h1 -c 1 -p 64 -a $h1mac -b $swmac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "block 22" 101 1
+ check_err $? "Did not match first incoming packet on a block"
+
+ $MZ $h2 -c 1 -p 64 -a $h2mac -b $swmac -A 192.0.2.1 -B 192.0.2.2 \
+ -t ip -q
+
+ tc_check_packets "block 22" 102 1
+ check_err $? "Did not match second incoming packet on a block"
+
+ tc filter del block 22 protocol ip pref 1 handle 101 flower
+ tc filter del block 22 protocol ip pref 2 handle 102 flower
+
+ log_test "indev match ($tcflags)"
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ h1mac=$(mac_get $h1)
+ h2mac=$(mac_get $h2)
+
+ swmac=$(mac_get $swp1)
+ swp2origmac=$(mac_get $swp2)
+ ip link set $swp2 address $swmac
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+ switch_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ switch_destroy
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+
+ ip link set $swp2 address $swp2origmac
+}
+
+check_tc_shblock_support
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+tc_offload_check
+if [[ $? -ne 0 ]]; then
+ log_info "Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ tests_run
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_vlan_modify.sh b/tools/testing/selftests/net/forwarding/tc_vlan_modify.sh
new file mode 100755
index 000000000..45378905c
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_vlan_modify.sh
@@ -0,0 +1,164 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+ vlan_modify_ingress
+ vlan_modify_egress
+"
+
+NUM_NETIFS=4
+CHECK_TC="yes"
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+ vlan_create $h1 85 v$h1 192.0.2.17/28 2001:db8:2::1/64
+}
+
+h1_destroy()
+{
+ vlan_destroy $h1 85
+ simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.2/28 2001:db8:1::2/64
+ vlan_create $h2 65 v$h2 192.0.2.18/28 2001:db8:2::2/64
+}
+
+h2_destroy()
+{
+ vlan_destroy $h2 65
+ simple_if_fini $h2 192.0.2.2/28 2001:db8:1::2/64
+}
+
+switch_create()
+{
+ ip link add dev br0 type bridge vlan_filtering 1 mcast_snooping 0
+
+ ip link set dev $swp1 master br0
+ ip link set dev $swp2 master br0
+
+ ip link set dev br0 up
+ ip link set dev $swp1 up
+ ip link set dev $swp2 up
+
+ bridge vlan add dev $swp1 vid 85
+ bridge vlan add dev $swp2 vid 65
+
+ bridge vlan add dev $swp2 vid 85
+ bridge vlan add dev $swp1 vid 65
+
+ tc qdisc add dev $swp1 clsact
+ tc qdisc add dev $swp2 clsact
+}
+
+switch_destroy()
+{
+ tc qdisc del dev $swp2 clsact
+ tc qdisc del dev $swp1 clsact
+
+ bridge vlan del vid 65 dev $swp1
+ bridge vlan del vid 85 dev $swp2
+
+ bridge vlan del vid 65 dev $swp2
+ bridge vlan del vid 85 dev $swp1
+
+ ip link set dev $swp2 down
+ ip link set dev $swp1 down
+
+ ip link del dev br0
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+
+ switch_create
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ switch_destroy
+
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+vlan_modify_ingress()
+{
+ RET=0
+
+ ping_do $h1.85 192.0.2.18
+ check_fail $? "ping between two different vlans passed when should not"
+
+ ping6_do $h1.85 2001:db8:2::2
+ check_fail $? "ping6 between two different vlans passed when should not"
+
+ tc filter add dev $swp1 ingress protocol all pref 1 handle 1 \
+ flower action vlan modify id 65
+ tc filter add dev $swp2 ingress protocol all pref 1 handle 1 \
+ flower action vlan modify id 85
+
+ ping_do $h1.85 192.0.2.18
+ check_err $? "ping between two different vlans failed when should not"
+
+ ping6_do $h1.85 2001:db8:2::2
+ check_err $? "ping6 between two different vlans failed when should not"
+
+ log_test "VLAN modify at ingress"
+
+ tc filter del dev $swp2 ingress protocol all pref 1 handle 1 flower
+ tc filter del dev $swp1 ingress protocol all pref 1 handle 1 flower
+}
+
+vlan_modify_egress()
+{
+ RET=0
+
+ ping_do $h1.85 192.0.2.18
+ check_fail $? "ping between two different vlans passed when should not"
+
+ ping6_do $h1.85 2001:db8:2::2
+ check_fail $? "ping6 between two different vlans passed when should not"
+
+ tc filter add dev $swp1 egress protocol all pref 1 handle 1 \
+ flower action vlan modify id 85
+ tc filter add dev $swp2 egress protocol all pref 1 handle 1 \
+ flower action vlan modify id 65
+
+ ping_do $h1.85 192.0.2.18
+ check_err $? "ping between two different vlans failed when should not"
+
+ ping6_do $h1.85 2001:db8:2::2
+ check_err $? "ping6 between two different vlans failed when should not"
+
+ log_test "VLAN modify at egress"
+
+ tc filter del dev $swp2 egress protocol all pref 1 handle 1 flower
+ tc filter del dev $swp1 egress protocol all pref 1 handle 1 flower
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/vxlan_asymmetric.sh b/tools/testing/selftests/net/forwarding/vxlan_asymmetric.sh
new file mode 100755
index 000000000..0727e2012
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_asymmetric.sh
@@ -0,0 +1,577 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +---------------------------+ +------------------------------+
+# | vrf-h1 | | vrf-h2 |
+# | + $h1 | | + $h2 |
+# | | 10.1.1.101/24 | | | 10.1.2.101/24 |
+# | | default via 10.1.1.1 | | | default via 10.1.2.1 |
+# +----|----------------------+ +----|-------------------------+
+# | |
+# +----|--------------------------------------------|-------------------------+
+# | SW | | |
+# | +--|--------------------------------------------|-----------------------+ |
+# | | + $swp1 br1 + $swp2 | |
+# | | vid 10 pvid untagged vid 20 pvid untagged | |
+# | | | |
+# | | + vx10 + vx20 | |
+# | | local 10.0.0.1 local 10.0.0.1 | |
+# | | remote 10.0.0.2 remote 10.0.0.2 | |
+# | | id 1000 id 2000 | |
+# | | dstport 4789 dstport 4789 | |
+# | | vid 10 pvid untagged vid 20 pvid untagged | |
+# | | | |
+# | +-----------------------------------+-----------------------------------+ |
+# | | |
+# | +-----------------------------------|-----------------------------------+ |
+# | | | | |
+# | | +--------------------------------+--------------------------------+ | |
+# | | | | | |
+# | | + vlan10 vlan20 + | |
+# | | | 10.1.1.11/24 10.1.2.11/24 | | |
+# | | | | | |
+# | | + vlan10-v (macvlan) vlan20-v (macvlan) + | |
+# | | 10.1.1.1/24 10.1.2.1/24 | |
+# | | 00:00:5e:00:01:01 00:00:5e:00:01:01 | |
+# | | vrf-green | |
+# | +-----------------------------------------------------------------------+ |
+# | |
+# | + $rp1 +lo |
+# | | 192.0.2.1/24 10.0.0.1/32 |
+# +----|----------------------------------------------------------------------+
+# |
+# +----|--------------------------------------------------------+
+# | | vrf-spine |
+# | + $rp2 |
+# | 192.0.2.2/24 |
+# | | (maybe) HW
+# =============================================================================
+# | | (likely) SW
+# | |
+# | + v1 (veth) |
+# | | 192.0.3.2/24 |
+# +----|--------------------------------------------------------+
+# |
+# +----|----------------------------------------------------------------------+
+# | + v2 (veth) +lo NS1 (netns) |
+# | 192.0.3.1/24 10.0.0.2/32 |
+# | |
+# | +-----------------------------------------------------------------------+ |
+# | | vrf-green | |
+# | | + vlan10-v (macvlan) vlan20-v (macvlan) + | |
+# | | | 10.1.1.1/24 10.1.2.1/24 | | |
+# | | | 00:00:5e:00:01:01 00:00:5e:00:01:01 | | |
+# | | | | | |
+# | | + vlan10 vlan20 + | |
+# | | | 10.1.1.12/24 10.1.2.12/24 | | |
+# | | | | | |
+# | | +--------------------------------+--------------------------------+ | |
+# | | | | |
+# | +-----------------------------------|-----------------------------------+ |
+# | | |
+# | +-----------------------------------+-----------------------------------+ |
+# | | | |
+# | | + vx10 + vx20 | |
+# | | local 10.0.0.2 local 10.0.0.2 | |
+# | | remote 10.0.0.1 remote 10.0.0.1 | |
+# | | id 1000 id 2000 | |
+# | | dstport 4789 dstport 4789 | |
+# | | vid 10 pvid untagged vid 20 pvid untagged | |
+# | | | |
+# | | + w1 (veth) + w3 (veth) | |
+# | | | vid 10 pvid untagged br1 | vid 20 pvid untagged | |
+# | +--|------------------------------------------|-------------------------+ |
+# | | | |
+# | | | |
+# | +--|----------------------+ +--|-------------------------+ |
+# | | | vrf-h1 | | | vrf-h2 | |
+# | | + w2 (veth) | | + w4 (veth) | |
+# | | 10.1.1.102/24 | | 10.1.2.102/24 | |
+# | | default via 10.1.1.1 | | default via 10.1.2.1 | |
+# | +-------------------------+ +----------------------------+ |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+ ping_ipv4
+ arp_decap
+ arp_suppression
+"
+NUM_NETIFS=6
+source lib.sh
+
+require_command $ARPING
+
+hx_create()
+{
+ local vrf_name=$1; shift
+ local if_name=$1; shift
+ local ip_addr=$1; shift
+ local gw_ip=$1; shift
+
+ vrf_create $vrf_name
+ ip link set dev $if_name master $vrf_name
+ ip link set dev $vrf_name up
+ ip link set dev $if_name up
+
+ ip address add $ip_addr/24 dev $if_name
+ ip neigh replace $gw_ip lladdr 00:00:5e:00:01:01 nud permanent \
+ dev $if_name
+ ip route add default vrf $vrf_name nexthop via $gw_ip
+}
+export -f hx_create
+
+hx_destroy()
+{
+ local vrf_name=$1; shift
+ local if_name=$1; shift
+ local ip_addr=$1; shift
+ local gw_ip=$1; shift
+
+ ip route del default vrf $vrf_name nexthop via $gw_ip
+ ip neigh del $gw_ip dev $if_name
+ ip address del $ip_addr/24 dev $if_name
+
+ ip link set dev $if_name down
+ vrf_destroy $vrf_name
+}
+
+h1_create()
+{
+ hx_create "vrf-h1" $h1 10.1.1.101 10.1.1.1
+}
+
+h1_destroy()
+{
+ hx_destroy "vrf-h1" $h1 10.1.1.101 10.1.1.1
+}
+
+h2_create()
+{
+ hx_create "vrf-h2" $h2 10.1.2.101 10.1.2.1
+}
+
+h2_destroy()
+{
+ hx_destroy "vrf-h2" $h2 10.1.2.101 10.1.2.1
+}
+
+switch_create()
+{
+ ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+ mcast_snooping 0
+ # Make sure the bridge uses the MAC address of the local port and not
+ # that of the VxLAN's device.
+ ip link set dev br1 address $(mac_get $swp1)
+ ip link set dev br1 up
+
+ ip link set dev $rp1 up
+ ip address add dev $rp1 192.0.2.1/24
+ ip route add 10.0.0.2/32 nexthop via 192.0.2.2
+
+ ip link add name vx10 type vxlan id 1000 \
+ local 10.0.0.1 remote 10.0.0.2 dstport 4789 \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx10 up
+
+ ip link set dev vx10 master br1
+ bridge vlan add vid 10 dev vx10 pvid untagged
+
+ ip link add name vx20 type vxlan id 2000 \
+ local 10.0.0.1 remote 10.0.0.2 dstport 4789 \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx20 up
+
+ ip link set dev vx20 master br1
+ bridge vlan add vid 20 dev vx20 pvid untagged
+
+ ip link set dev $swp1 master br1
+ ip link set dev $swp1 up
+ bridge vlan add vid 10 dev $swp1 pvid untagged
+
+ ip link set dev $swp2 master br1
+ ip link set dev $swp2 up
+ bridge vlan add vid 20 dev $swp2 pvid untagged
+
+ ip address add 10.0.0.1/32 dev lo
+
+ # Create SVIs
+ vrf_create "vrf-green"
+ ip link set dev vrf-green up
+
+ ip link add link br1 name vlan10 up master vrf-green type vlan id 10
+ ip address add 10.1.1.11/24 dev vlan10
+ ip link add link vlan10 name vlan10-v up master vrf-green \
+ address 00:00:5e:00:01:01 type macvlan mode private
+ ip address add 10.1.1.1/24 dev vlan10-v
+
+ ip link add link br1 name vlan20 up master vrf-green type vlan id 20
+ ip address add 10.1.2.11/24 dev vlan20
+ ip link add link vlan20 name vlan20-v up master vrf-green \
+ address 00:00:5e:00:01:01 type macvlan mode private
+ ip address add 10.1.2.1/24 dev vlan20-v
+
+ bridge vlan add vid 10 dev br1 self
+ bridge vlan add vid 20 dev br1 self
+
+ bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 10
+ bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 20
+
+ sysctl_set net.ipv4.conf.all.rp_filter 0
+ sysctl_set net.ipv4.conf.vlan10-v.rp_filter 0
+ sysctl_set net.ipv4.conf.vlan20-v.rp_filter 0
+}
+
+switch_destroy()
+{
+ sysctl_restore net.ipv4.conf.all.rp_filter
+
+ bridge fdb del 00:00:5e:00:01:01 dev br1 self local vlan 20
+ bridge fdb del 00:00:5e:00:01:01 dev br1 self local vlan 10
+
+ bridge vlan del vid 20 dev br1 self
+ bridge vlan del vid 10 dev br1 self
+
+ ip link del dev vlan20
+
+ ip link del dev vlan10
+
+ vrf_destroy "vrf-green"
+
+ ip address del 10.0.0.1/32 dev lo
+
+ bridge vlan del vid 20 dev $swp2
+ ip link set dev $swp2 down
+ ip link set dev $swp2 nomaster
+
+ bridge vlan del vid 10 dev $swp1
+ ip link set dev $swp1 down
+ ip link set dev $swp1 nomaster
+
+ bridge vlan del vid 20 dev vx20
+ ip link set dev vx20 nomaster
+
+ ip link set dev vx20 down
+ ip link del dev vx20
+
+ bridge vlan del vid 10 dev vx10
+ ip link set dev vx10 nomaster
+
+ ip link set dev vx10 down
+ ip link del dev vx10
+
+ ip route del 10.0.0.2/32 nexthop via 192.0.2.2
+ ip address del dev $rp1 192.0.2.1/24
+ ip link set dev $rp1 down
+
+ ip link set dev br1 down
+ ip link del dev br1
+}
+
+spine_create()
+{
+ vrf_create "vrf-spine"
+ ip link set dev $rp2 master vrf-spine
+ ip link set dev v1 master vrf-spine
+ ip link set dev vrf-spine up
+ ip link set dev $rp2 up
+ ip link set dev v1 up
+
+ ip address add 192.0.2.2/24 dev $rp2
+ ip address add 192.0.3.2/24 dev v1
+
+ ip route add 10.0.0.1/32 vrf vrf-spine nexthop via 192.0.2.1
+ ip route add 10.0.0.2/32 vrf vrf-spine nexthop via 192.0.3.1
+}
+
+spine_destroy()
+{
+ ip route del 10.0.0.2/32 vrf vrf-spine nexthop via 192.0.3.1
+ ip route del 10.0.0.1/32 vrf vrf-spine nexthop via 192.0.2.1
+
+ ip address del 192.0.3.2/24 dev v1
+ ip address del 192.0.2.2/24 dev $rp2
+
+ ip link set dev v1 down
+ ip link set dev $rp2 down
+ vrf_destroy "vrf-spine"
+}
+
+ns_h1_create()
+{
+ hx_create "vrf-h1" w2 10.1.1.102 10.1.1.1
+}
+export -f ns_h1_create
+
+ns_h2_create()
+{
+ hx_create "vrf-h2" w4 10.1.2.102 10.1.2.1
+}
+export -f ns_h2_create
+
+ns_switch_create()
+{
+ ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+ mcast_snooping 0
+ ip link set dev br1 up
+
+ ip link set dev v2 up
+ ip address add dev v2 192.0.3.1/24
+ ip route add 10.0.0.1/32 nexthop via 192.0.3.2
+
+ ip link add name vx10 type vxlan id 1000 \
+ local 10.0.0.2 remote 10.0.0.1 dstport 4789 \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx10 up
+
+ ip link set dev vx10 master br1
+ bridge vlan add vid 10 dev vx10 pvid untagged
+
+ ip link add name vx20 type vxlan id 2000 \
+ local 10.0.0.2 remote 10.0.0.1 dstport 4789 \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx20 up
+
+ ip link set dev vx20 master br1
+ bridge vlan add vid 20 dev vx20 pvid untagged
+
+ ip link set dev w1 master br1
+ ip link set dev w1 up
+ bridge vlan add vid 10 dev w1 pvid untagged
+
+ ip link set dev w3 master br1
+ ip link set dev w3 up
+ bridge vlan add vid 20 dev w3 pvid untagged
+
+ ip address add 10.0.0.2/32 dev lo
+
+ # Create SVIs
+ vrf_create "vrf-green"
+ ip link set dev vrf-green up
+
+ ip link add link br1 name vlan10 up master vrf-green type vlan id 10
+ ip address add 10.1.1.12/24 dev vlan10
+ ip link add link vlan10 name vlan10-v up master vrf-green \
+ address 00:00:5e:00:01:01 type macvlan mode private
+ ip address add 10.1.1.1/24 dev vlan10-v
+
+ ip link add link br1 name vlan20 up master vrf-green type vlan id 20
+ ip address add 10.1.2.12/24 dev vlan20
+ ip link add link vlan20 name vlan20-v up master vrf-green \
+ address 00:00:5e:00:01:01 type macvlan mode private
+ ip address add 10.1.2.1/24 dev vlan20-v
+
+ bridge vlan add vid 10 dev br1 self
+ bridge vlan add vid 20 dev br1 self
+
+ bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 10
+ bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 20
+
+ sysctl_set net.ipv4.conf.all.rp_filter 0
+ sysctl_set net.ipv4.conf.vlan10-v.rp_filter 0
+ sysctl_set net.ipv4.conf.vlan20-v.rp_filter 0
+}
+export -f ns_switch_create
+
+ns_init()
+{
+ ip link add name w1 type veth peer name w2
+ ip link add name w3 type veth peer name w4
+
+ ip link set dev lo up
+
+ ns_h1_create
+ ns_h2_create
+ ns_switch_create
+}
+export -f ns_init
+
+ns1_create()
+{
+ ip netns add ns1
+ ip link set dev v2 netns ns1
+ in_ns ns1 ns_init
+}
+
+ns1_destroy()
+{
+ ip netns exec ns1 ip link set dev v2 netns 1
+ ip netns del ns1
+}
+
+macs_populate()
+{
+ local mac1=$1; shift
+ local mac2=$1; shift
+ local ip1=$1; shift
+ local ip2=$1; shift
+ local dst=$1; shift
+
+ bridge fdb add $mac1 dev vx10 self master extern_learn static \
+ dst $dst vlan 10
+ bridge fdb add $mac2 dev vx20 self master extern_learn static \
+ dst $dst vlan 20
+
+ ip neigh add $ip1 lladdr $mac1 nud noarp dev vlan10 \
+ extern_learn
+ ip neigh add $ip2 lladdr $mac2 nud noarp dev vlan20 \
+ extern_learn
+}
+export -f macs_populate
+
+macs_initialize()
+{
+ local h1_ns_mac=$(in_ns ns1 mac_get w2)
+ local h2_ns_mac=$(in_ns ns1 mac_get w4)
+ local h1_mac=$(mac_get $h1)
+ local h2_mac=$(mac_get $h2)
+
+ macs_populate $h1_ns_mac $h2_ns_mac 10.1.1.102 10.1.2.102 10.0.0.2
+ in_ns ns1 macs_populate $h1_mac $h2_mac 10.1.1.101 10.1.2.101 10.0.0.1
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ rp1=${NETIFS[p5]}
+ rp2=${NETIFS[p6]}
+
+ vrf_prepare
+ forwarding_enable
+
+ h1_create
+ h2_create
+ switch_create
+
+ ip link add name v1 type veth peer name v2
+ spine_create
+ ns1_create
+
+ macs_initialize
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ ns1_destroy
+ spine_destroy
+ ip link del dev v1
+
+ switch_destroy
+ h2_destroy
+ h1_destroy
+
+ forwarding_restore
+ vrf_cleanup
+}
+
+ping_ipv4()
+{
+ ping_test $h1 10.1.2.101 ": local->local vid 10->vid 20"
+ ping_test $h1 10.1.1.102 ": local->remote vid 10->vid 10"
+ ping_test $h2 10.1.2.102 ": local->remote vid 20->vid 20"
+ ping_test $h1 10.1.2.102 ": local->remote vid 10->vid 20"
+ ping_test $h2 10.1.1.102 ": local->remote vid 20->vid 10"
+}
+
+arp_decap()
+{
+ # Repeat the ping tests, but without populating the neighbours. This
+ # makes sure we correctly decapsulate ARP packets
+ log_info "deleting neighbours from vlan interfaces"
+
+ ip neigh del 10.1.1.102 dev vlan10
+ ip neigh del 10.1.2.102 dev vlan20
+
+ ping_ipv4
+
+ ip neigh replace 10.1.1.102 lladdr $(in_ns ns1 mac_get w2) nud noarp \
+ dev vlan10 extern_learn
+ ip neigh replace 10.1.2.102 lladdr $(in_ns ns1 mac_get w4) nud noarp \
+ dev vlan20 extern_learn
+}
+
+arp_suppression_compare()
+{
+ local expect=$1; shift
+ local actual=$(in_ns ns1 tc_rule_stats_get vx10 1 ingress)
+
+ (( expect == actual ))
+ check_err $? "expected $expect arps got $actual"
+}
+
+arp_suppression()
+{
+ ip link set dev vx10 type bridge_slave neigh_suppress on
+
+ in_ns ns1 tc qdisc add dev vx10 clsact
+ in_ns ns1 tc filter add dev vx10 ingress proto arp pref 1 handle 101 \
+ flower dst_mac ff:ff:ff:ff:ff:ff arp_tip 10.1.1.102 arp_op \
+ request action pass
+
+ # The neighbour is configured on the SVI and ARP suppression is on, so
+ # the ARP request should be suppressed
+ RET=0
+
+ $ARPING -I $h1 -fqb -c 1 -w 1 10.1.1.102
+ check_err $? "arping failed"
+
+ arp_suppression_compare 0
+
+ log_test "neigh_suppress: on / neigh exists: yes"
+
+ # Delete the neighbour from the the SVI. A single ARP request should be
+ # received by the remote VTEP
+ RET=0
+
+ ip neigh del 10.1.1.102 dev vlan10
+
+ $ARPING -I $h1 -fqb -c 1 -w 1 10.1.1.102
+ check_err $? "arping failed"
+
+ arp_suppression_compare 1
+
+ log_test "neigh_suppress: on / neigh exists: no"
+
+ # Turn off ARP suppression and make sure ARP is not suppressed,
+ # regardless of neighbour existence on the SVI
+ RET=0
+
+ ip neigh del 10.1.1.102 dev vlan10 &> /dev/null
+ ip link set dev vx10 type bridge_slave neigh_suppress off
+
+ $ARPING -I $h1 -fqb -c 1 -w 1 10.1.1.102
+ check_err $? "arping failed"
+
+ arp_suppression_compare 2
+
+ log_test "neigh_suppress: off / neigh exists: no"
+
+ RET=0
+
+ ip neigh add 10.1.1.102 lladdr $(in_ns ns1 mac_get w2) nud noarp \
+ dev vlan10 extern_learn
+
+ $ARPING -I $h1 -fqb -c 1 -w 1 10.1.1.102
+ check_err $? "arping failed"
+
+ arp_suppression_compare 3
+
+ log_test "neigh_suppress: off / neigh exists: yes"
+
+ in_ns ns1 tc qdisc del dev vx10 clsact
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh b/tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh
new file mode 100755
index 000000000..0ccb1dda0
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh
@@ -0,0 +1,786 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +--------------------+ +----------------------+
+# | H1 (vrf) | | H2 (vrf) |
+# | + $h1 | | + $h2 |
+# | | 192.0.2.1/28 | | | 192.0.2.2/28 |
+# +----|---------------+ +--|-------------------+
+# | |
+# +----|--------------------------------------------------|-------------------+
+# | SW | | |
+# | +--|--------------------------------------------------|-----------------+ |
+# | | + $swp1 BR1 (802.1d) + $swp2 | |
+# | | | |
+# | | + vx1 (vxlan) | |
+# | | local 192.0.2.17 | |
+# | | remote 192.0.2.34 192.0.2.50 | |
+# | | id 1000 dstport $VXPORT | |
+# | +-----------------------------------------------------------------------+ |
+# | |
+# | 192.0.2.32/28 via 192.0.2.18 |
+# | 192.0.2.48/28 via 192.0.2.18 |
+# | |
+# | + $rp1 |
+# | | 192.0.2.17/28 |
+# +----|----------------------------------------------------------------------+
+# |
+# +----|--------------------------------------------------------+
+# | | VRP2 (vrf) |
+# | + $rp2 |
+# | 192.0.2.18/28 |
+# | | (maybe) HW
+# =============================================================================
+# | | (likely) SW
+# | + v1 (veth) + v3 (veth) |
+# | | 192.0.2.33/28 | 192.0.2.49/28 |
+# +----|---------------------------------------|----------------+
+# | |
+# +----|------------------------------+ +----|------------------------------+
+# | + v2 (veth) NS1 (netns) | | + v4 (veth) NS2 (netns) |
+# | 192.0.2.34/28 | | 192.0.2.50/28 |
+# | | | |
+# | 192.0.2.16/28 via 192.0.2.33 | | 192.0.2.16/28 via 192.0.2.49 |
+# | 192.0.2.50/32 via 192.0.2.33 | | 192.0.2.34/32 via 192.0.2.49 |
+# | | | |
+# | +-------------------------------+ | | +-------------------------------+ |
+# | | BR2 (802.1d) | | | | BR2 (802.1d) | |
+# | | + vx2 (vxlan) | | | | + vx2 (vxlan) | |
+# | | local 192.0.2.34 | | | | local 192.0.2.50 | |
+# | | remote 192.0.2.17 | | | | remote 192.0.2.17 | |
+# | | remote 192.0.2.50 | | | | remote 192.0.2.34 | |
+# | | id 1000 dstport $VXPORT | | | | id 1000 dstport $VXPORT | |
+# | | | | | | | |
+# | | + w1 (veth) | | | | + w1 (veth) | |
+# | +--|----------------------------+ | | +--|----------------------------+ |
+# | | | | | |
+# | +--|----------------------------+ | | +--|----------------------------+ |
+# | | | VW2 (vrf) | | | | | VW2 (vrf) | |
+# | | + w2 (veth) | | | | + w2 (veth) | |
+# | | 192.0.2.3/28 | | | | 192.0.2.4/28 | |
+# | +-------------------------------+ | | +-------------------------------+ |
+# +-----------------------------------+ +-----------------------------------+
+
+: ${VXPORT:=4789}
+export VXPORT
+
+: ${ALL_TESTS:="
+ ping_ipv4
+ test_flood
+ test_unicast
+ test_ttl
+ test_tos
+ test_ecn_encap
+ test_ecn_decap
+ reapply_config
+ ping_ipv4
+ test_flood
+ test_unicast
+ test_learning
+ "}
+
+NUM_NETIFS=6
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1 192.0.2.1/28
+ tc qdisc add dev $h1 clsact
+}
+
+h1_destroy()
+{
+ tc qdisc del dev $h1 clsact
+ simple_if_fini $h1 192.0.2.1/28
+}
+
+h2_create()
+{
+ simple_if_init $h2 192.0.2.2/28
+ tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+ tc qdisc del dev $h2 clsact
+ simple_if_fini $h2 192.0.2.2/28
+}
+
+rp1_set_addr()
+{
+ ip address add dev $rp1 192.0.2.17/28
+
+ ip route add 192.0.2.32/28 nexthop via 192.0.2.18
+ ip route add 192.0.2.48/28 nexthop via 192.0.2.18
+}
+
+rp1_unset_addr()
+{
+ ip route del 192.0.2.48/28 nexthop via 192.0.2.18
+ ip route del 192.0.2.32/28 nexthop via 192.0.2.18
+
+ ip address del dev $rp1 192.0.2.17/28
+}
+
+switch_create()
+{
+ ip link add name br1 type bridge vlan_filtering 0 mcast_snooping 0
+ # Make sure the bridge uses the MAC address of the local port and not
+ # that of the VxLAN's device.
+ ip link set dev br1 address $(mac_get $swp1)
+ ip link set dev br1 up
+
+ ip link set dev $rp1 up
+ rp1_set_addr
+
+ ip link add name vx1 type vxlan id 1000 \
+ local 192.0.2.17 dstport "$VXPORT" \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx1 up
+
+ ip link set dev vx1 master br1
+ ip link set dev $swp1 master br1
+ ip link set dev $swp1 up
+
+ ip link set dev $swp2 master br1
+ ip link set dev $swp2 up
+
+ bridge fdb append dev vx1 00:00:00:00:00:00 dst 192.0.2.34 self
+ bridge fdb append dev vx1 00:00:00:00:00:00 dst 192.0.2.50 self
+}
+
+switch_destroy()
+{
+ rp1_unset_addr
+ ip link set dev $rp1 down
+
+ bridge fdb del dev vx1 00:00:00:00:00:00 dst 192.0.2.50 self
+ bridge fdb del dev vx1 00:00:00:00:00:00 dst 192.0.2.34 self
+
+ ip link set dev vx1 nomaster
+ ip link set dev vx1 down
+ ip link del dev vx1
+
+ ip link set dev $swp2 down
+ ip link set dev $swp2 nomaster
+
+ ip link set dev $swp1 down
+ ip link set dev $swp1 nomaster
+
+ ip link set dev br1 down
+ ip link del dev br1
+}
+
+vrp2_create()
+{
+ simple_if_init $rp2 192.0.2.18/28
+ __simple_if_init v1 v$rp2 192.0.2.33/28
+ __simple_if_init v3 v$rp2 192.0.2.49/28
+ tc qdisc add dev v1 clsact
+}
+
+vrp2_destroy()
+{
+ tc qdisc del dev v1 clsact
+ __simple_if_fini v3 192.0.2.49/28
+ __simple_if_fini v1 192.0.2.33/28
+ simple_if_fini $rp2 192.0.2.18/28
+}
+
+ns_init_common()
+{
+ local in_if=$1; shift
+ local in_addr=$1; shift
+ local other_in_addr=$1; shift
+ local nh_addr=$1; shift
+ local host_addr=$1; shift
+
+ ip link set dev $in_if up
+ ip address add dev $in_if $in_addr/28
+ tc qdisc add dev $in_if clsact
+
+ ip link add name br2 type bridge vlan_filtering 0
+ ip link set dev br2 up
+
+ ip link add name w1 type veth peer name w2
+
+ ip link set dev w1 master br2
+ ip link set dev w1 up
+
+ ip link add name vx2 type vxlan id 1000 local $in_addr dstport "$VXPORT"
+ ip link set dev vx2 up
+ bridge fdb append dev vx2 00:00:00:00:00:00 dst 192.0.2.17 self
+ bridge fdb append dev vx2 00:00:00:00:00:00 dst $other_in_addr self
+
+ ip link set dev vx2 master br2
+ tc qdisc add dev vx2 clsact
+
+ simple_if_init w2 $host_addr/28
+
+ ip route add 192.0.2.16/28 nexthop via $nh_addr
+ ip route add $other_in_addr/32 nexthop via $nh_addr
+}
+export -f ns_init_common
+
+ns1_create()
+{
+ ip netns add ns1
+ ip link set dev v2 netns ns1
+ in_ns ns1 \
+ ns_init_common v2 192.0.2.34 192.0.2.50 192.0.2.33 192.0.2.3
+}
+
+ns1_destroy()
+{
+ ip netns exec ns1 ip link set dev v2 netns 1
+ ip netns del ns1
+}
+
+ns2_create()
+{
+ ip netns add ns2
+ ip link set dev v4 netns ns2
+ in_ns ns2 \
+ ns_init_common v4 192.0.2.50 192.0.2.34 192.0.2.49 192.0.2.4
+}
+
+ns2_destroy()
+{
+ ip netns exec ns2 ip link set dev v4 netns 1
+ ip netns del ns2
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ rp1=${NETIFS[p5]}
+ rp2=${NETIFS[p6]}
+
+ vrf_prepare
+ forwarding_enable
+
+ h1_create
+ h2_create
+ switch_create
+
+ ip link add name v1 type veth peer name v2
+ ip link add name v3 type veth peer name v4
+ vrp2_create
+ ns1_create
+ ns2_create
+
+ r1_mac=$(in_ns ns1 mac_get w2)
+ r2_mac=$(in_ns ns2 mac_get w2)
+ h2_mac=$(mac_get $h2)
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ ns2_destroy
+ ns1_destroy
+ vrp2_destroy
+ ip link del dev v3
+ ip link del dev v1
+
+ switch_destroy
+ h2_destroy
+ h1_destroy
+
+ forwarding_restore
+ vrf_cleanup
+}
+
+# For the first round of tests, vx1 is the first device to get attached to the
+# bridge, and that at the point that the local IP is already configured. Try the
+# other scenario of attaching the device to an already-offloaded bridge, and
+# only then attach the local IP.
+reapply_config()
+{
+ echo "Reapplying configuration"
+
+ bridge fdb del dev vx1 00:00:00:00:00:00 dst 192.0.2.50 self
+ bridge fdb del dev vx1 00:00:00:00:00:00 dst 192.0.2.34 self
+ rp1_unset_addr
+ ip link set dev vx1 nomaster
+ sleep 5
+
+ ip link set dev vx1 master br1
+ bridge fdb append dev vx1 00:00:00:00:00:00 dst 192.0.2.34 self
+ bridge fdb append dev vx1 00:00:00:00:00:00 dst 192.0.2.50 self
+ sleep 1
+ rp1_set_addr
+ sleep 5
+}
+
+ping_ipv4()
+{
+ ping_test $h1 192.0.2.2 ": local->local"
+ ping_test $h1 192.0.2.3 ": local->remote 1"
+ ping_test $h1 192.0.2.4 ": local->remote 2"
+}
+
+maybe_in_ns()
+{
+ echo ${1:+in_ns} $1
+}
+
+__flood_counter_add_del()
+{
+ local add_del=$1; shift
+ local dev=$1; shift
+ local ns=$1; shift
+
+ # Putting the ICMP capture both to HW and to SW will end up
+ # double-counting the packets that are trapped to slow path, such as for
+ # the unicast test. Adding either skip_hw or skip_sw fixes this problem,
+ # but with skip_hw, the flooded packets are not counted at all, because
+ # those are dropped due to MAC address mismatch; and skip_sw is a no-go
+ # for veth-based topologies.
+ #
+ # So try to install with skip_sw and fall back to skip_sw if that fails.
+
+ $(maybe_in_ns $ns) __icmp_capture_add_del \
+ $add_del 100 "" $dev skip_sw 2>/dev/null || \
+ $(maybe_in_ns $ns) __icmp_capture_add_del \
+ $add_del 100 "" $dev skip_hw
+}
+
+flood_counter_install()
+{
+ __flood_counter_add_del add "$@"
+}
+
+flood_counter_uninstall()
+{
+ __flood_counter_add_del del "$@"
+}
+
+flood_fetch_stat()
+{
+ local dev=$1; shift
+ local ns=$1; shift
+
+ $(maybe_in_ns $ns) tc_rule_stats_get $dev 100 ingress
+}
+
+flood_fetch_stats()
+{
+ local counters=("${@}")
+ local counter
+
+ for counter in "${counters[@]}"; do
+ flood_fetch_stat $counter
+ done
+}
+
+vxlan_flood_test()
+{
+ local mac=$1; shift
+ local dst=$1; shift
+ local -a expects=("${@}")
+
+ local -a counters=($h2 "vx2 ns1" "vx2 ns2")
+ local counter
+ local key
+
+ for counter in "${counters[@]}"; do
+ flood_counter_install $counter
+ done
+
+ local -a t0s=($(flood_fetch_stats "${counters[@]}"))
+ $MZ $h1 -c 10 -d 100msec -p 64 -b $mac -B $dst -t icmp -q
+ sleep 1
+ local -a t1s=($(flood_fetch_stats "${counters[@]}"))
+
+ for key in ${!t0s[@]}; do
+ local delta=$((t1s[$key] - t0s[$key]))
+ local expect=${expects[$key]}
+
+ ((expect == delta))
+ check_err $? "${counters[$key]}: Expected to capture $expect packets, got $delta."
+ done
+
+ for counter in "${counters[@]}"; do
+ flood_counter_uninstall $counter
+ done
+}
+
+__test_flood()
+{
+ local mac=$1; shift
+ local dst=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ vxlan_flood_test $mac $dst 10 10 10
+
+ log_test "VXLAN: $what"
+}
+
+test_flood()
+{
+ __test_flood de:ad:be:ef:13:37 192.0.2.100 "flood"
+}
+
+vxlan_fdb_add_del()
+{
+ local add_del=$1; shift
+ local mac=$1; shift
+ local dev=$1; shift
+ local dst=$1; shift
+
+ bridge fdb $add_del dev $dev $mac self static permanent \
+ ${dst:+dst} $dst 2>/dev/null
+ bridge fdb $add_del dev $dev $mac master static 2>/dev/null
+}
+
+__test_unicast()
+{
+ local mac=$1; shift
+ local dst=$1; shift
+ local hit_idx=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ local -a expects=(0 0 0)
+ expects[$hit_idx]=10
+
+ vxlan_flood_test $mac $dst "${expects[@]}"
+
+ log_test "VXLAN: $what"
+}
+
+test_unicast()
+{
+ local -a targets=("$h2_mac $h2"
+ "$r1_mac vx1 192.0.2.34"
+ "$r2_mac vx1 192.0.2.50")
+ local target
+
+ for target in "${targets[@]}"; do
+ vxlan_fdb_add_del add $target
+ done
+
+ __test_unicast $h2_mac 192.0.2.2 0 "local MAC unicast"
+ __test_unicast $r1_mac 192.0.2.3 1 "remote MAC 1 unicast"
+ __test_unicast $r2_mac 192.0.2.4 2 "remote MAC 2 unicast"
+
+ for target in "${targets[@]}"; do
+ vxlan_fdb_add_del del $target
+ done
+}
+
+vxlan_ping_test()
+{
+ local ping_dev=$1; shift
+ local ping_dip=$1; shift
+ local ping_args=$1; shift
+ local capture_dev=$1; shift
+ local capture_dir=$1; shift
+ local capture_pref=$1; shift
+ local expect=$1; shift
+
+ local t0=$(tc_rule_stats_get $capture_dev $capture_pref $capture_dir)
+ ping_do $ping_dev $ping_dip "$ping_args"
+ local t1=$(tc_rule_stats_get $capture_dev $capture_pref $capture_dir)
+ local delta=$((t1 - t0))
+
+ # Tolerate a couple stray extra packets.
+ ((expect <= delta && delta <= expect + 2))
+ check_err $? "$capture_dev: Expected to capture $expect packets, got $delta."
+}
+
+test_ttl()
+{
+ RET=0
+
+ tc filter add dev v1 egress pref 77 prot ip \
+ flower ip_ttl 99 action pass
+ vxlan_ping_test $h1 192.0.2.3 "" v1 egress 77 10
+ tc filter del dev v1 egress pref 77 prot ip
+
+ log_test "VXLAN: envelope TTL"
+}
+
+test_tos()
+{
+ RET=0
+
+ tc filter add dev v1 egress pref 77 prot ip \
+ flower ip_tos 0x14 action pass
+ vxlan_ping_test $h1 192.0.2.3 "-Q 0x14" v1 egress 77 10
+ vxlan_ping_test $h1 192.0.2.3 "-Q 0x18" v1 egress 77 0
+ tc filter del dev v1 egress pref 77 prot ip
+
+ log_test "VXLAN: envelope TOS inheritance"
+}
+
+__test_ecn_encap()
+{
+ local q=$1; shift
+ local tos=$1; shift
+
+ RET=0
+
+ tc filter add dev v1 egress pref 77 prot ip \
+ flower ip_tos $tos action pass
+ sleep 1
+ vxlan_ping_test $h1 192.0.2.3 "-Q $q" v1 egress 77 10
+ tc filter del dev v1 egress pref 77 prot ip
+
+ log_test "VXLAN: ECN encap: $q->$tos"
+}
+
+test_ecn_encap()
+{
+ # In accordance with INET_ECN_encapsulate()
+ __test_ecn_encap 0x00 0x00
+ __test_ecn_encap 0x01 0x01
+ __test_ecn_encap 0x02 0x02
+ __test_ecn_encap 0x03 0x02
+}
+
+vxlan_encapped_ping_do()
+{
+ local count=$1; shift
+ local dev=$1; shift
+ local next_hop_mac=$1; shift
+ local dest_ip=$1; shift
+ local dest_mac=$1; shift
+ local inner_tos=$1; shift
+ local outer_tos=$1; shift
+
+ $MZ $dev -c $count -d 100msec -q \
+ -b $next_hop_mac -B $dest_ip \
+ -t udp tos=$outer_tos,sp=23456,dp=$VXPORT,p=$(:
+ )"08:"$( : VXLAN flags
+ )"00:00:00:"$( : VXLAN reserved
+ )"00:03:e8:"$( : VXLAN VNI
+ )"00:"$( : VXLAN reserved
+ )"$dest_mac:"$( : ETH daddr
+ )"$(mac_get w2):"$( : ETH saddr
+ )"08:00:"$( : ETH type
+ )"45:"$( : IP version + IHL
+ )"$inner_tos:"$( : IP TOS
+ )"00:54:"$( : IP total length
+ )"99:83:"$( : IP identification
+ )"40:00:"$( : IP flags + frag off
+ )"40:"$( : IP TTL
+ )"01:"$( : IP proto
+ )"00:00:"$( : IP header csum
+ )"c0:00:02:03:"$( : IP saddr: 192.0.2.3
+ )"c0:00:02:01:"$( : IP daddr: 192.0.2.1
+ )"08:"$( : ICMP type
+ )"00:"$( : ICMP code
+ )"8b:f2:"$( : ICMP csum
+ )"1f:6a:"$( : ICMP request identifier
+ )"00:01:"$( : ICMP request sequence number
+ )"4f:ff:c5:5b:00:00:00:00:"$( : ICMP payload
+ )"6d:74:0b:00:00:00:00:00:"$( :
+ )"10:11:12:13:14:15:16:17:"$( :
+ )"18:19:1a:1b:1c:1d:1e:1f:"$( :
+ )"20:21:22:23:24:25:26:27:"$( :
+ )"28:29:2a:2b:2c:2d:2e:2f:"$( :
+ )"30:31:32:33:34:35:36:37"
+}
+export -f vxlan_encapped_ping_do
+
+vxlan_encapped_ping_test()
+{
+ local ping_dev=$1; shift
+ local nh_dev=$1; shift
+ local ping_dip=$1; shift
+ local inner_tos=$1; shift
+ local outer_tos=$1; shift
+ local stat_get=$1; shift
+ local expect=$1; shift
+
+ local t0=$($stat_get)
+
+ in_ns ns1 \
+ vxlan_encapped_ping_do 10 $ping_dev $(mac_get $nh_dev) \
+ $ping_dip $(mac_get $h1) \
+ $inner_tos $outer_tos
+
+ local t1=$($stat_get)
+ local delta=$((t1 - t0))
+
+ # Tolerate a couple stray extra packets.
+ ((expect <= delta && delta <= expect + 2))
+ check_err $? "Expected to capture $expect packets, got $delta."
+}
+export -f vxlan_encapped_ping_test
+
+__test_ecn_decap()
+{
+ local orig_inner_tos=$1; shift
+ local orig_outer_tos=$1; shift
+ local decapped_tos=$1; shift
+
+ RET=0
+
+ tc filter add dev $h1 ingress pref 77 prot ip \
+ flower ip_tos $decapped_tos action drop
+ sleep 1
+ vxlan_encapped_ping_test v2 v1 192.0.2.17 \
+ $orig_inner_tos $orig_outer_tos \
+ "tc_rule_stats_get $h1 77 ingress" 10
+ tc filter del dev $h1 ingress pref 77
+
+ log_test "VXLAN: ECN decap: $orig_outer_tos/$orig_inner_tos->$decapped_tos"
+}
+
+test_ecn_decap_error()
+{
+ local orig_inner_tos=00
+ local orig_outer_tos=03
+
+ RET=0
+
+ vxlan_encapped_ping_test v2 v1 192.0.2.17 \
+ $orig_inner_tos $orig_outer_tos \
+ "link_stats_rx_errors_get vx1" 10
+
+ log_test "VXLAN: ECN decap: $orig_outer_tos/$orig_inner_tos->error"
+}
+
+test_ecn_decap()
+{
+ # In accordance with INET_ECN_decapsulate()
+ __test_ecn_decap 00 00 0x00
+ __test_ecn_decap 01 01 0x01
+ __test_ecn_decap 02 01 0x01
+ __test_ecn_decap 01 03 0x03
+ __test_ecn_decap 02 03 0x03
+ test_ecn_decap_error
+}
+
+test_learning()
+{
+ local mac=de:ad:be:ef:13:37
+ local dst=192.0.2.100
+
+ # Enable learning on the VxLAN device and set ageing time to 10 seconds
+ ip link set dev br1 type bridge ageing_time 1000
+ ip link set dev vx1 type vxlan ageing 10
+ ip link set dev vx1 type vxlan learning
+ reapply_config
+
+ # Check that flooding works
+ RET=0
+
+ vxlan_flood_test $mac $dst 10 10 10
+
+ log_test "VXLAN: flood before learning"
+
+ # Send a packet with source mac set to $mac from host w2 and check that
+ # a corresponding entry is created in VxLAN device vx1
+ RET=0
+
+ in_ns ns1 $MZ w2 -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff -B $dst \
+ -t icmp -q
+ sleep 1
+
+ bridge fdb show brport vx1 | grep $mac | grep -q self
+ check_err $?
+ bridge fdb show brport vx1 | grep $mac | grep -q -v self
+ check_err $?
+
+ log_test "VXLAN: show learned FDB entry"
+
+ # Repeat first test and check that packets only reach host w2 in ns1
+ RET=0
+
+ vxlan_flood_test $mac $dst 0 10 0
+
+ log_test "VXLAN: learned FDB entry"
+
+ # Delete the learned FDB entry from the VxLAN and bridge devices and
+ # check that packets are flooded
+ RET=0
+
+ bridge fdb del dev vx1 $mac master self
+ sleep 1
+
+ vxlan_flood_test $mac $dst 10 10 10
+
+ log_test "VXLAN: deletion of learned FDB entry"
+
+ # Re-learn the first FDB entry and check that it is correctly aged-out
+ RET=0
+
+ in_ns ns1 $MZ w2 -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff -B $dst \
+ -t icmp -q
+ sleep 1
+
+ bridge fdb show brport vx1 | grep $mac | grep -q self
+ check_err $?
+ bridge fdb show brport vx1 | grep $mac | grep -q -v self
+ check_err $?
+
+ vxlan_flood_test $mac $dst 0 10 0
+
+ sleep 20
+
+ bridge fdb show brport vx1 | grep $mac | grep -q self
+ check_fail $?
+ bridge fdb show brport vx1 | grep $mac | grep -q -v self
+ check_fail $?
+
+ vxlan_flood_test $mac $dst 10 10 10
+
+ log_test "VXLAN: Ageing of learned FDB entry"
+
+ # Toggle learning on the bridge port and check that the bridge's FDB
+ # is populated only when it should
+ RET=0
+
+ ip link set dev vx1 type bridge_slave learning off
+
+ in_ns ns1 $MZ w2 -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff -B $dst \
+ -t icmp -q
+ sleep 1
+
+ bridge fdb show brport vx1 | grep $mac | grep -q -v self
+ check_fail $?
+
+ ip link set dev vx1 type bridge_slave learning on
+
+ in_ns ns1 $MZ w2 -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff -B $dst \
+ -t icmp -q
+ sleep 1
+
+ bridge fdb show brport vx1 | grep $mac | grep -q -v self
+ check_err $?
+
+ log_test "VXLAN: learning toggling on bridge port"
+
+ # Restore previous settings
+ ip link set dev vx1 type vxlan nolearning
+ ip link set dev vx1 type vxlan ageing 300
+ ip link set dev br1 type bridge ageing_time 30000
+ reapply_config
+}
+
+test_all()
+{
+ echo "Running tests with UDP port $VXPORT"
+ tests_run
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+test_all
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/vxlan_bridge_1d_port_8472.sh b/tools/testing/selftests/net/forwarding/vxlan_bridge_1d_port_8472.sh
new file mode 100755
index 000000000..3bf3da691
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_bridge_1d_port_8472.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# A wrapper to run VXLAN tests with an unusual port number.
+
+VXPORT=8472
+ALL_TESTS="
+ ping_ipv4
+"
+source vxlan_bridge_1d.sh
diff --git a/tools/testing/selftests/net/forwarding/vxlan_bridge_1q.sh b/tools/testing/selftests/net/forwarding/vxlan_bridge_1q.sh
new file mode 100755
index 000000000..a5789721b
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_bridge_1q.sh
@@ -0,0 +1,860 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-----------------------+ +------------------------+
+# | H1 (vrf) | | H2 (vrf) |
+# | + $h1.10 | | + $h2.10 |
+# | | 192.0.2.1/28 | | | 192.0.2.2/28 |
+# | | | | | |
+# | | + $h1.20 | | | + $h2.20 |
+# | \ | 198.51.100.1/24 | | \ | 198.51.100.2/24 |
+# | \| | | \| |
+# | + $h1 | | + $h2 |
+# +----|------------------+ +----|-------------------+
+# | |
+# +----|--------------------------------------------------|-------------------+
+# | SW | | |
+# | +--|--------------------------------------------------|-----------------+ |
+# | | + $swp1 BR1 (802.1q) + $swp2 | |
+# | | vid 10 vid 10 | |
+# | | vid 20 vid 20 | |
+# | | | |
+# | | + vx10 (vxlan) + vx20 (vxlan) | |
+# | | local 192.0.2.17 local 192.0.2.17 | |
+# | | remote 192.0.2.34 192.0.2.50 remote 192.0.2.34 192.0.2.50 | |
+# | | id 1000 dstport $VXPORT id 2000 dstport $VXPORT | |
+# | | vid 10 pvid untagged vid 20 pvid untagged | |
+# | +-----------------------------------------------------------------------+ |
+# | |
+# | 192.0.2.32/28 via 192.0.2.18 |
+# | 192.0.2.48/28 via 192.0.2.18 |
+# | |
+# | + $rp1 |
+# | | 192.0.2.17/28 |
+# +----|----------------------------------------------------------------------+
+# |
+# +----|--------------------------------------------------------+
+# | | VRP2 (vrf) |
+# | + $rp2 |
+# | 192.0.2.18/28 |
+# | | (maybe) HW
+# =============================================================================
+# | | (likely) SW
+# | + v1 (veth) + v3 (veth) |
+# | | 192.0.2.33/28 | 192.0.2.49/28 |
+# +----|---------------------------------------|----------------+
+# | |
+# +----|------------------------------+ +----|------------------------------+
+# | + v2 (veth) NS1 (netns) | | + v4 (veth) NS2 (netns) |
+# | 192.0.2.34/28 | | 192.0.2.50/28 |
+# | | | |
+# | 192.0.2.16/28 via 192.0.2.33 | | 192.0.2.16/28 via 192.0.2.49 |
+# | 192.0.2.50/32 via 192.0.2.33 | | 192.0.2.34/32 via 192.0.2.49 |
+# | | | |
+# | +-------------------------------+ | | +-------------------------------+ |
+# | | BR2 (802.1q) | | | | BR2 (802.1q) | |
+# | | + vx10 (vxlan) | | | | + vx10 (vxlan) | |
+# | | local 192.0.2.34 | | | | local 192.0.2.50 | |
+# | | remote 192.0.2.17 | | | | remote 192.0.2.17 | |
+# | | remote 192.0.2.50 | | | | remote 192.0.2.34 | |
+# | | id 1000 dstport $VXPORT | | | | id 1000 dstport $VXPORT | |
+# | | vid 10 pvid untagged | | | | vid 10 pvid untagged | |
+# | | | | | | | |
+# | | + vx20 (vxlan) | | | | + vx20 (vxlan) | |
+# | | local 192.0.2.34 | | | | local 192.0.2.50 | |
+# | | remote 192.0.2.17 | | | | remote 192.0.2.17 | |
+# | | remote 192.0.2.50 | | | | remote 192.0.2.34 | |
+# | | id 2000 dstport $VXPORT | | | | id 2000 dstport $VXPORT | |
+# | | vid 20 pvid untagged | | | | vid 20 pvid untagged | |
+# | | | | | | | |
+# | | + w1 (veth) | | | | + w1 (veth) | |
+# | | | vid 10 | | | | | vid 10 | |
+# | | | vid 20 | | | | | vid 20 | |
+# | +--|----------------------------+ | | +--|----------------------------+ |
+# | | | | | |
+# | +--|----------------------------+ | | +--|----------------------------+ |
+# | | + w2 (veth) VW2 (vrf) | | | | + w2 (veth) VW2 (vrf) | |
+# | | |\ | | | | |\ | |
+# | | | + w2.10 | | | | | + w2.10 | |
+# | | | 192.0.2.3/28 | | | | | 192.0.2.4/28 | |
+# | | | | | | | | | |
+# | | + w2.20 | | | | + w2.20 | |
+# | | 198.51.100.3/24 | | | | 198.51.100.4/24 | |
+# | +-------------------------------+ | | +-------------------------------+ |
+# +-----------------------------------+ +-----------------------------------+
+
+: ${VXPORT:=4789}
+export VXPORT
+
+: ${ALL_TESTS:="
+ ping_ipv4
+ test_flood
+ test_unicast
+ reapply_config
+ ping_ipv4
+ test_flood
+ test_unicast
+ test_learning
+ test_pvid
+ "}
+
+NUM_NETIFS=6
+source lib.sh
+
+h1_create()
+{
+ simple_if_init $h1
+ tc qdisc add dev $h1 clsact
+ vlan_create $h1 10 v$h1 192.0.2.1/28
+ vlan_create $h1 20 v$h1 198.51.100.1/24
+}
+
+h1_destroy()
+{
+ vlan_destroy $h1 20
+ vlan_destroy $h1 10
+ tc qdisc del dev $h1 clsact
+ simple_if_fini $h1
+}
+
+h2_create()
+{
+ simple_if_init $h2
+ tc qdisc add dev $h2 clsact
+ vlan_create $h2 10 v$h2 192.0.2.2/28
+ vlan_create $h2 20 v$h2 198.51.100.2/24
+}
+
+h2_destroy()
+{
+ vlan_destroy $h2 20
+ vlan_destroy $h2 10
+ tc qdisc del dev $h2 clsact
+ simple_if_fini $h2
+}
+
+rp1_set_addr()
+{
+ ip address add dev $rp1 192.0.2.17/28
+
+ ip route add 192.0.2.32/28 nexthop via 192.0.2.18
+ ip route add 192.0.2.48/28 nexthop via 192.0.2.18
+}
+
+rp1_unset_addr()
+{
+ ip route del 192.0.2.48/28 nexthop via 192.0.2.18
+ ip route del 192.0.2.32/28 nexthop via 192.0.2.18
+
+ ip address del dev $rp1 192.0.2.17/28
+}
+
+switch_create()
+{
+ ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+ mcast_snooping 0
+ # Make sure the bridge uses the MAC address of the local port and not
+ # that of the VxLAN's device.
+ ip link set dev br1 address $(mac_get $swp1)
+ ip link set dev br1 up
+
+ ip link set dev $rp1 up
+ rp1_set_addr
+
+ ip link add name vx10 type vxlan id 1000 \
+ local 192.0.2.17 dstport "$VXPORT" \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx10 up
+
+ ip link set dev vx10 master br1
+ bridge vlan add vid 10 dev vx10 pvid untagged
+
+ ip link add name vx20 type vxlan id 2000 \
+ local 192.0.2.17 dstport "$VXPORT" \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx20 up
+
+ ip link set dev vx20 master br1
+ bridge vlan add vid 20 dev vx20 pvid untagged
+
+ ip link set dev $swp1 master br1
+ ip link set dev $swp1 up
+ bridge vlan add vid 10 dev $swp1
+ bridge vlan add vid 20 dev $swp1
+
+ ip link set dev $swp2 master br1
+ ip link set dev $swp2 up
+ bridge vlan add vid 10 dev $swp2
+ bridge vlan add vid 20 dev $swp2
+
+ bridge fdb append dev vx10 00:00:00:00:00:00 dst 192.0.2.34 self
+ bridge fdb append dev vx10 00:00:00:00:00:00 dst 192.0.2.50 self
+
+ bridge fdb append dev vx20 00:00:00:00:00:00 dst 192.0.2.34 self
+ bridge fdb append dev vx20 00:00:00:00:00:00 dst 192.0.2.50 self
+}
+
+switch_destroy()
+{
+ bridge fdb del dev vx20 00:00:00:00:00:00 dst 192.0.2.50 self
+ bridge fdb del dev vx20 00:00:00:00:00:00 dst 192.0.2.34 self
+
+ bridge fdb del dev vx10 00:00:00:00:00:00 dst 192.0.2.50 self
+ bridge fdb del dev vx10 00:00:00:00:00:00 dst 192.0.2.34 self
+
+ bridge vlan del vid 20 dev $swp2
+ bridge vlan del vid 10 dev $swp2
+ ip link set dev $swp2 down
+ ip link set dev $swp2 nomaster
+
+ bridge vlan del vid 20 dev $swp1
+ bridge vlan del vid 10 dev $swp1
+ ip link set dev $swp1 down
+ ip link set dev $swp1 nomaster
+
+ bridge vlan del vid 20 dev vx20
+ ip link set dev vx20 nomaster
+
+ ip link set dev vx20 down
+ ip link del dev vx20
+
+ bridge vlan del vid 10 dev vx10
+ ip link set dev vx10 nomaster
+
+ ip link set dev vx10 down
+ ip link del dev vx10
+
+ rp1_unset_addr
+ ip link set dev $rp1 down
+
+ ip link set dev br1 down
+ ip link del dev br1
+}
+
+vrp2_create()
+{
+ simple_if_init $rp2 192.0.2.18/28
+ __simple_if_init v1 v$rp2 192.0.2.33/28
+ __simple_if_init v3 v$rp2 192.0.2.49/28
+ tc qdisc add dev v1 clsact
+}
+
+vrp2_destroy()
+{
+ tc qdisc del dev v1 clsact
+ __simple_if_fini v3 192.0.2.49/28
+ __simple_if_fini v1 192.0.2.33/28
+ simple_if_fini $rp2 192.0.2.18/28
+}
+
+ns_init_common()
+{
+ local in_if=$1; shift
+ local in_addr=$1; shift
+ local other_in_addr=$1; shift
+ local nh_addr=$1; shift
+ local host_addr1=$1; shift
+ local host_addr2=$1; shift
+
+ ip link set dev $in_if up
+ ip address add dev $in_if $in_addr/28
+ tc qdisc add dev $in_if clsact
+
+ ip link add name br2 type bridge vlan_filtering 1 vlan_default_pvid 0
+ ip link set dev br2 up
+
+ ip link add name w1 type veth peer name w2
+
+ ip link set dev w1 master br2
+ ip link set dev w1 up
+
+ bridge vlan add vid 10 dev w1
+ bridge vlan add vid 20 dev w1
+
+ ip link add name vx10 type vxlan id 1000 local $in_addr \
+ dstport "$VXPORT"
+ ip link set dev vx10 up
+ bridge fdb append dev vx10 00:00:00:00:00:00 dst 192.0.2.17 self
+ bridge fdb append dev vx10 00:00:00:00:00:00 dst $other_in_addr self
+
+ ip link set dev vx10 master br2
+ tc qdisc add dev vx10 clsact
+
+ bridge vlan add vid 10 dev vx10 pvid untagged
+
+ ip link add name vx20 type vxlan id 2000 local $in_addr \
+ dstport "$VXPORT"
+ ip link set dev vx20 up
+ bridge fdb append dev vx20 00:00:00:00:00:00 dst 192.0.2.17 self
+ bridge fdb append dev vx20 00:00:00:00:00:00 dst $other_in_addr self
+
+ ip link set dev vx20 master br2
+ tc qdisc add dev vx20 clsact
+
+ bridge vlan add vid 20 dev vx20 pvid untagged
+
+ simple_if_init w2
+ vlan_create w2 10 vw2 $host_addr1/28
+ vlan_create w2 20 vw2 $host_addr2/24
+
+ ip route add 192.0.2.16/28 nexthop via $nh_addr
+ ip route add $other_in_addr/32 nexthop via $nh_addr
+}
+export -f ns_init_common
+
+ns1_create()
+{
+ ip netns add ns1
+ ip link set dev v2 netns ns1
+ in_ns ns1 \
+ ns_init_common v2 192.0.2.34 192.0.2.50 192.0.2.33 192.0.2.3 \
+ 198.51.100.3
+}
+
+ns1_destroy()
+{
+ ip netns exec ns1 ip link set dev v2 netns 1
+ ip netns del ns1
+}
+
+ns2_create()
+{
+ ip netns add ns2
+ ip link set dev v4 netns ns2
+ in_ns ns2 \
+ ns_init_common v4 192.0.2.50 192.0.2.34 192.0.2.49 192.0.2.4 \
+ 198.51.100.4
+}
+
+ns2_destroy()
+{
+ ip netns exec ns2 ip link set dev v4 netns 1
+ ip netns del ns2
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ rp1=${NETIFS[p5]}
+ rp2=${NETIFS[p6]}
+
+ vrf_prepare
+ forwarding_enable
+
+ h1_create
+ h2_create
+ switch_create
+
+ ip link add name v1 type veth peer name v2
+ ip link add name v3 type veth peer name v4
+ vrp2_create
+ ns1_create
+ ns2_create
+
+ r1_mac=$(in_ns ns1 mac_get w2)
+ r2_mac=$(in_ns ns2 mac_get w2)
+ h2_mac=$(mac_get $h2)
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ ns2_destroy
+ ns1_destroy
+ vrp2_destroy
+ ip link del dev v3
+ ip link del dev v1
+
+ switch_destroy
+ h2_destroy
+ h1_destroy
+
+ forwarding_restore
+ vrf_cleanup
+}
+
+# For the first round of tests, vx10 and vx20 were the first devices to get
+# attached to the bridge, and that at the point that the local IP is already
+# configured. Try the other scenario of attaching these devices to a bridge
+# that already has local ports members, and only then assign the local IP.
+reapply_config()
+{
+ log_info "Reapplying configuration"
+
+ bridge fdb del dev vx20 00:00:00:00:00:00 dst 192.0.2.50 self
+ bridge fdb del dev vx20 00:00:00:00:00:00 dst 192.0.2.34 self
+
+ bridge fdb del dev vx10 00:00:00:00:00:00 dst 192.0.2.50 self
+ bridge fdb del dev vx10 00:00:00:00:00:00 dst 192.0.2.34 self
+
+ ip link set dev vx20 nomaster
+ ip link set dev vx10 nomaster
+
+ rp1_unset_addr
+ sleep 5
+
+ ip link set dev vx10 master br1
+ bridge vlan add vid 10 dev vx10 pvid untagged
+
+ ip link set dev vx20 master br1
+ bridge vlan add vid 20 dev vx20 pvid untagged
+
+ bridge fdb append dev vx10 00:00:00:00:00:00 dst 192.0.2.34 self
+ bridge fdb append dev vx10 00:00:00:00:00:00 dst 192.0.2.50 self
+
+ bridge fdb append dev vx20 00:00:00:00:00:00 dst 192.0.2.34 self
+ bridge fdb append dev vx20 00:00:00:00:00:00 dst 192.0.2.50 self
+
+ rp1_set_addr
+ sleep 5
+}
+
+ping_ipv4()
+{
+ ping_test $h1.10 192.0.2.2 ": local->local vid 10"
+ ping_test $h1.20 198.51.100.2 ": local->local vid 20"
+ ping_test $h1.10 192.0.2.3 ": local->remote 1 vid 10"
+ ping_test $h1.10 192.0.2.4 ": local->remote 2 vid 10"
+ ping_test $h1.20 198.51.100.3 ": local->remote 1 vid 20"
+ ping_test $h1.20 198.51.100.4 ": local->remote 2 vid 20"
+}
+
+maybe_in_ns()
+{
+ echo ${1:+in_ns} $1
+}
+
+__flood_counter_add_del()
+{
+ local add_del=$1; shift
+ local dev=$1; shift
+ local ns=$1; shift
+
+ # Putting the ICMP capture both to HW and to SW will end up
+ # double-counting the packets that are trapped to slow path, such as for
+ # the unicast test. Adding either skip_hw or skip_sw fixes this problem,
+ # but with skip_hw, the flooded packets are not counted at all, because
+ # those are dropped due to MAC address mismatch; and skip_sw is a no-go
+ # for veth-based topologies.
+ #
+ # So try to install with skip_sw and fall back to skip_sw if that fails.
+
+ $(maybe_in_ns $ns) __icmp_capture_add_del \
+ $add_del 100 "" $dev skip_sw 2>/dev/null || \
+ $(maybe_in_ns $ns) __icmp_capture_add_del \
+ $add_del 100 "" $dev skip_hw
+}
+
+flood_counter_install()
+{
+ __flood_counter_add_del add "$@"
+}
+
+flood_counter_uninstall()
+{
+ __flood_counter_add_del del "$@"
+}
+
+flood_fetch_stat()
+{
+ local dev=$1; shift
+ local ns=$1; shift
+
+ $(maybe_in_ns $ns) tc_rule_stats_get $dev 100 ingress
+}
+
+flood_fetch_stats()
+{
+ local counters=("${@}")
+ local counter
+
+ for counter in "${counters[@]}"; do
+ flood_fetch_stat $counter
+ done
+}
+
+vxlan_flood_test()
+{
+ local mac=$1; shift
+ local dst=$1; shift
+ local vid=$1; shift
+ local -a expects=("${@}")
+
+ local -a counters=($h2 "vx10 ns1" "vx20 ns1" "vx10 ns2" "vx20 ns2")
+ local counter
+ local key
+
+ # Packets reach the local host tagged whereas they reach the VxLAN
+ # devices untagged. In order to be able to use the same filter for
+ # all counters, make sure the packets also reach the local host
+ # untagged
+ bridge vlan add vid $vid dev $swp2 untagged
+ for counter in "${counters[@]}"; do
+ flood_counter_install $counter
+ done
+
+ local -a t0s=($(flood_fetch_stats "${counters[@]}"))
+ $MZ $h1 -Q $vid -c 10 -d 100msec -p 64 -b $mac -B $dst -t icmp -q
+ sleep 1
+ local -a t1s=($(flood_fetch_stats "${counters[@]}"))
+
+ for key in ${!t0s[@]}; do
+ local delta=$((t1s[$key] - t0s[$key]))
+ local expect=${expects[$key]}
+
+ ((expect == delta))
+ check_err $? "${counters[$key]}: Expected to capture $expect packets, got $delta."
+ done
+
+ for counter in "${counters[@]}"; do
+ flood_counter_uninstall $counter
+ done
+ bridge vlan add vid $vid dev $swp2
+}
+
+__test_flood()
+{
+ local mac=$1; shift
+ local dst=$1; shift
+ local vid=$1; shift
+ local what=$1; shift
+ local -a expects=("${@}")
+
+ RET=0
+
+ vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+ log_test "VXLAN: $what"
+}
+
+test_flood()
+{
+ __test_flood de:ad:be:ef:13:37 192.0.2.100 10 "flood vlan 10" \
+ 10 10 0 10 0
+ __test_flood ca:fe:be:ef:13:37 198.51.100.100 20 "flood vlan 20" \
+ 10 0 10 0 10
+}
+
+vxlan_fdb_add_del()
+{
+ local add_del=$1; shift
+ local vid=$1; shift
+ local mac=$1; shift
+ local dev=$1; shift
+ local dst=$1; shift
+
+ bridge fdb $add_del dev $dev $mac self static permanent \
+ ${dst:+dst} $dst 2>/dev/null
+ bridge fdb $add_del dev $dev $mac master static vlan $vid 2>/dev/null
+}
+
+__test_unicast()
+{
+ local mac=$1; shift
+ local dst=$1; shift
+ local hit_idx=$1; shift
+ local vid=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ local -a expects=(0 0 0 0 0)
+ expects[$hit_idx]=10
+
+ vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+ log_test "VXLAN: $what"
+}
+
+test_unicast()
+{
+ local -a targets=("$h2_mac $h2"
+ "$r1_mac vx10 192.0.2.34"
+ "$r2_mac vx10 192.0.2.50")
+ local target
+
+ log_info "unicast vlan 10"
+
+ for target in "${targets[@]}"; do
+ vxlan_fdb_add_del add 10 $target
+ done
+
+ __test_unicast $h2_mac 192.0.2.2 0 10 "local MAC unicast"
+ __test_unicast $r1_mac 192.0.2.3 1 10 "remote MAC 1 unicast"
+ __test_unicast $r2_mac 192.0.2.4 3 10 "remote MAC 2 unicast"
+
+ for target in "${targets[@]}"; do
+ vxlan_fdb_add_del del 10 $target
+ done
+
+ log_info "unicast vlan 20"
+
+ targets=("$h2_mac $h2" "$r1_mac vx20 192.0.2.34" \
+ "$r2_mac vx20 192.0.2.50")
+
+ for target in "${targets[@]}"; do
+ vxlan_fdb_add_del add 20 $target
+ done
+
+ __test_unicast $h2_mac 198.51.100.2 0 20 "local MAC unicast"
+ __test_unicast $r1_mac 198.51.100.3 2 20 "remote MAC 1 unicast"
+ __test_unicast $r2_mac 198.51.100.4 4 20 "remote MAC 2 unicast"
+
+ for target in "${targets[@]}"; do
+ vxlan_fdb_add_del del 20 $target
+ done
+}
+
+test_pvid()
+{
+ local -a expects=(0 0 0 0 0)
+ local mac=de:ad:be:ef:13:37
+ local dst=192.0.2.100
+ local vid=10
+
+ # Check that flooding works
+ RET=0
+
+ expects[0]=10; expects[1]=10; expects[3]=10
+ vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+ log_test "VXLAN: flood before pvid off"
+
+ # Toggle PVID off and test that flood to remote hosts does not work
+ RET=0
+
+ bridge vlan add vid 10 dev vx10
+
+ expects[0]=10; expects[1]=0; expects[3]=0
+ vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+ log_test "VXLAN: flood after pvid off"
+
+ # Toggle PVID on and test that flood to remote hosts does work
+ RET=0
+
+ bridge vlan add vid 10 dev vx10 pvid untagged
+
+ expects[0]=10; expects[1]=10; expects[3]=10
+ vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+ log_test "VXLAN: flood after pvid on"
+
+ # Add a new VLAN and test that it does not affect flooding
+ RET=0
+
+ bridge vlan add vid 30 dev vx10
+
+ expects[0]=10; expects[1]=10; expects[3]=10
+ vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+ bridge vlan del vid 30 dev vx10
+
+ log_test "VXLAN: flood after vlan add"
+
+ # Remove currently mapped VLAN and test that flood to remote hosts does
+ # not work
+ RET=0
+
+ bridge vlan del vid 10 dev vx10
+
+ expects[0]=10; expects[1]=0; expects[3]=0
+ vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+ log_test "VXLAN: flood after vlan delete"
+
+ # Re-add the VLAN and test that flood to remote hosts does work
+ RET=0
+
+ bridge vlan add vid 10 dev vx10 pvid untagged
+
+ expects[0]=10; expects[1]=10; expects[3]=10
+ vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+ log_test "VXLAN: flood after vlan re-add"
+}
+
+vxlan_ping_test()
+{
+ local ping_dev=$1; shift
+ local ping_dip=$1; shift
+ local ping_args=$1; shift
+ local capture_dev=$1; shift
+ local capture_dir=$1; shift
+ local capture_pref=$1; shift
+ local expect=$1; shift
+
+ local t0=$(tc_rule_stats_get $capture_dev $capture_pref $capture_dir)
+ ping_do $ping_dev $ping_dip "$ping_args"
+ local t1=$(tc_rule_stats_get $capture_dev $capture_pref $capture_dir)
+ local delta=$((t1 - t0))
+
+ # Tolerate a couple stray extra packets.
+ ((expect <= delta && delta <= expect + 2))
+ check_err $? "$capture_dev: Expected to capture $expect packets, got $delta."
+}
+
+__test_learning()
+{
+ local -a expects=(0 0 0 0 0)
+ local mac=$1; shift
+ local dst=$1; shift
+ local vid=$1; shift
+ local idx1=$1; shift
+ local idx2=$1; shift
+ local vx=vx$vid
+
+ # Check that flooding works
+ RET=0
+
+ expects[0]=10; expects[$idx1]=10; expects[$idx2]=10
+ vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+ log_test "VXLAN: flood before learning"
+
+ # Send a packet with source mac set to $mac from host w2 and check that
+ # a corresponding entry is created in the VxLAN device
+ RET=0
+
+ in_ns ns1 $MZ w2 -Q $vid -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff \
+ -B $dst -t icmp -q
+ sleep 1
+
+ bridge fdb show brport $vx | grep $mac | grep -q self
+ check_err $?
+ bridge fdb show brport $vx | grep $mac | grep "vlan $vid" \
+ | grep -q -v self
+ check_err $?
+
+ log_test "VXLAN: show learned FDB entry"
+
+ # Repeat first test and check that packets only reach host w2 in ns1
+ RET=0
+
+ expects[0]=0; expects[$idx1]=10; expects[$idx2]=0
+ vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+ log_test "VXLAN: learned FDB entry"
+
+ # Delete the learned FDB entry from the VxLAN and bridge devices and
+ # check that packets are flooded
+ RET=0
+
+ bridge fdb del dev $vx $mac master self vlan $vid
+ sleep 1
+
+ expects[0]=10; expects[$idx1]=10; expects[$idx2]=10
+ vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+ log_test "VXLAN: deletion of learned FDB entry"
+
+ # Re-learn the first FDB entry and check that it is correctly aged-out
+ RET=0
+
+ in_ns ns1 $MZ w2 -Q $vid -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff \
+ -B $dst -t icmp -q
+ sleep 1
+
+ bridge fdb show brport $vx | grep $mac | grep -q self
+ check_err $?
+ bridge fdb show brport $vx | grep $mac | grep "vlan $vid" \
+ | grep -q -v self
+ check_err $?
+
+ expects[0]=0; expects[$idx1]=10; expects[$idx2]=0
+ vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+ sleep 20
+
+ bridge fdb show brport $vx | grep $mac | grep -q self
+ check_fail $?
+ bridge fdb show brport $vx | grep $mac | grep "vlan $vid" \
+ | grep -q -v self
+ check_fail $?
+
+ expects[0]=10; expects[$idx1]=10; expects[$idx2]=10
+ vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+ log_test "VXLAN: Ageing of learned FDB entry"
+
+ # Toggle learning on the bridge port and check that the bridge's FDB
+ # is populated only when it should
+ RET=0
+
+ ip link set dev $vx type bridge_slave learning off
+
+ in_ns ns1 $MZ w2 -Q $vid -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff \
+ -B $dst -t icmp -q
+ sleep 1
+
+ bridge fdb show brport $vx | grep $mac | grep "vlan $vid" \
+ | grep -q -v self
+ check_fail $?
+
+ ip link set dev $vx type bridge_slave learning on
+
+ in_ns ns1 $MZ w2 -Q $vid -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff \
+ -B $dst -t icmp -q
+ sleep 1
+
+ bridge fdb show brport $vx | grep $mac | grep "vlan $vid" \
+ | grep -q -v self
+ check_err $?
+
+ log_test "VXLAN: learning toggling on bridge port"
+}
+
+test_learning()
+{
+ local mac=de:ad:be:ef:13:37
+ local dst=192.0.2.100
+ local vid=10
+
+ # Enable learning on the VxLAN devices and set ageing time to 10 seconds
+ ip link set dev br1 type bridge ageing_time 1000
+ ip link set dev vx10 type vxlan ageing 10
+ ip link set dev vx10 type vxlan learning
+ ip link set dev vx20 type vxlan ageing 10
+ ip link set dev vx20 type vxlan learning
+ reapply_config
+
+ log_info "learning vlan 10"
+
+ __test_learning $mac $dst $vid 1 3
+
+ log_info "learning vlan 20"
+
+ mac=ca:fe:be:ef:13:37
+ dst=198.51.100.100
+ vid=20
+
+ __test_learning $mac $dst $vid 2 4
+
+ # Restore previous settings
+ ip link set dev vx20 type vxlan nolearning
+ ip link set dev vx20 type vxlan ageing 300
+ ip link set dev vx10 type vxlan nolearning
+ ip link set dev vx10 type vxlan ageing 300
+ ip link set dev br1 type bridge ageing_time 30000
+ reapply_config
+}
+
+test_all()
+{
+ log_info "Running tests with UDP port $VXPORT"
+ tests_run
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+test_all
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/vxlan_bridge_1q_port_8472.sh b/tools/testing/selftests/net/forwarding/vxlan_bridge_1q_port_8472.sh
new file mode 100755
index 000000000..b1b2d1a31
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_bridge_1q_port_8472.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# A wrapper to run VXLAN tests with an unusual port number.
+
+VXPORT=8472
+ALL_TESTS="
+ ping_ipv4
+"
+source vxlan_bridge_1q.sh
diff --git a/tools/testing/selftests/net/forwarding/vxlan_symmetric.sh b/tools/testing/selftests/net/forwarding/vxlan_symmetric.sh
new file mode 100755
index 000000000..5d97fa347
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_symmetric.sh
@@ -0,0 +1,561 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +---------------------------+ +------------------------------+
+# | vrf-h1 | | vrf-h2 |
+# | + $h1 | | + $h2 |
+# | | 10.1.1.101/24 | | | 10.1.2.101/24 |
+# | | default via 10.1.1.1 | | | default via 10.1.2.1 |
+# +----|----------------------+ +----|-------------------------+
+# | |
+# +----|--------------------------------------------|-------------------------+
+# | SW | | |
+# | +--|--------------------------------------------|-----------------------+ |
+# | | + $swp1 br1 + $swp2 | |
+# | | vid 10 pvid untagged vid 20 pvid untagged | |
+# | | | |
+# | | + vx10 + vx20 | |
+# | | local 10.0.0.1 local 10.0.0.1 | |
+# | | remote 10.0.0.2 remote 10.0.0.2 | |
+# | | id 1010 id 1020 | |
+# | | dstport 4789 dstport 4789 | |
+# | | vid 10 pvid untagged vid 20 pvid untagged | |
+# | | | |
+# | | + vx4001 | |
+# | | local 10.0.0.1 | |
+# | | remote 10.0.0.2 | |
+# | | id 104001 | |
+# | | dstport 4789 | |
+# | | vid 4001 pvid untagged | |
+# | | | |
+# | +-----------------------------------+-----------------------------------+ |
+# | | |
+# | +-----------------------------------|-----------------------------------+ |
+# | | | | |
+# | | +--------------------------------+--------------------------------+ | |
+# | | | | | | |
+# | | + vlan10 | vlan20 + | |
+# | | | 10.1.1.11/24 | 10.1.2.11/24 | | |
+# | | | | | | |
+# | | + vlan10-v (macvlan) + vlan20-v (macvlan) + | |
+# | | 10.1.1.1/24 vlan4001 10.1.2.1/24 | |
+# | | 00:00:5e:00:01:01 00:00:5e:00:01:01 | |
+# | | vrf-green | |
+# | +-----------------------------------------------------------------------+ |
+# | |
+# | + $rp1 +lo |
+# | | 192.0.2.1/24 10.0.0.1/32 |
+# +----|----------------------------------------------------------------------+
+# |
+# +----|--------------------------------------------------------+
+# | | vrf-spine |
+# | + $rp2 |
+# | 192.0.2.2/24 |
+# | | (maybe) HW
+# =============================================================================
+# | | (likely) SW
+# | |
+# | + v1 (veth) |
+# | | 192.0.3.2/24 |
+# +----|--------------------------------------------------------+
+# |
+# +----|----------------------------------------------------------------------+
+# | + v2 (veth) +lo NS1 (netns) |
+# | 192.0.3.1/24 10.0.0.2/32 |
+# | |
+# | +-----------------------------------------------------------------------+ |
+# | | vrf-green | |
+# | | + vlan10-v (macvlan) vlan20-v (macvlan) + | |
+# | | | 10.1.1.1/24 10.1.2.1/24 | | |
+# | | | 00:00:5e:00:01:01 00:00:5e:00:01:01 | | |
+# | | | vlan4001 | | |
+# | | + vlan10 + vlan20 + | |
+# | | | 10.1.1.12/24 | 10.1.2.12/24 | | |
+# | | | | | | |
+# | | +--------------------------------+--------------------------------+ | |
+# | | | | |
+# | +-----------------------------------|-----------------------------------+ |
+# | | |
+# | +-----------------------------------+-----------------------------------+ |
+# | | | |
+# | | + vx10 + vx20 | |
+# | | local 10.0.0.2 local 10.0.0.2 | |
+# | | remote 10.0.0.1 remote 10.0.0.1 | |
+# | | id 1010 id 1020 | |
+# | | dstport 4789 dstport 4789 | |
+# | | vid 10 pvid untagged vid 20 pvid untagged | |
+# | | | |
+# | | + vx4001 | |
+# | | local 10.0.0.2 | |
+# | | remote 10.0.0.1 | |
+# | | id 104001 | |
+# | | dstport 4789 | |
+# | | vid 4001 pvid untagged | |
+# | | | |
+# | | + w1 (veth) + w3 (veth) | |
+# | | | vid 10 pvid untagged br1 | vid 20 pvid untagged | |
+# | +--|------------------------------------------|-------------------------+ |
+# | | | |
+# | | | |
+# | +--|----------------------+ +--|-------------------------+ |
+# | | | vrf-h1 | | | vrf-h2 | |
+# | | + w2 (veth) | | + w4 (veth) | |
+# | | 10.1.1.102/24 | | 10.1.2.102/24 | |
+# | | default via 10.1.1.1 | | default via 10.1.2.1 | |
+# | +-------------------------+ +----------------------------+ |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+ ping_ipv4
+"
+NUM_NETIFS=6
+source lib.sh
+
+hx_create()
+{
+ local vrf_name=$1; shift
+ local if_name=$1; shift
+ local ip_addr=$1; shift
+ local gw_ip=$1; shift
+
+ vrf_create $vrf_name
+ ip link set dev $if_name master $vrf_name
+ ip link set dev $vrf_name up
+ ip link set dev $if_name up
+
+ ip address add $ip_addr/24 dev $if_name
+ ip neigh replace $gw_ip lladdr 00:00:5e:00:01:01 nud permanent \
+ dev $if_name
+ ip route add default vrf $vrf_name nexthop via $gw_ip
+}
+export -f hx_create
+
+hx_destroy()
+{
+ local vrf_name=$1; shift
+ local if_name=$1; shift
+ local ip_addr=$1; shift
+ local gw_ip=$1; shift
+
+ ip route del default vrf $vrf_name nexthop via $gw_ip
+ ip neigh del $gw_ip dev $if_name
+ ip address del $ip_addr/24 dev $if_name
+
+ ip link set dev $if_name down
+ vrf_destroy $vrf_name
+}
+
+h1_create()
+{
+ hx_create "vrf-h1" $h1 10.1.1.101 10.1.1.1
+}
+
+h1_destroy()
+{
+ hx_destroy "vrf-h1" $h1 10.1.1.101 10.1.1.1
+}
+
+h2_create()
+{
+ hx_create "vrf-h2" $h2 10.1.2.101 10.1.2.1
+}
+
+h2_destroy()
+{
+ hx_destroy "vrf-h2" $h2 10.1.2.101 10.1.2.1
+}
+
+switch_create()
+{
+ ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+ mcast_snooping 0
+ # Make sure the bridge uses the MAC address of the local port and not
+ # that of the VxLAN's device.
+ ip link set dev br1 address $(mac_get $swp1)
+ ip link set dev br1 up
+
+ ip link set dev $rp1 up
+ ip address add dev $rp1 192.0.2.1/24
+ ip route add 10.0.0.2/32 nexthop via 192.0.2.2
+
+ ip link add name vx10 type vxlan id 1010 \
+ local 10.0.0.1 remote 10.0.0.2 dstport 4789 \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx10 up
+
+ ip link set dev vx10 master br1
+ bridge vlan add vid 10 dev vx10 pvid untagged
+
+ ip link add name vx20 type vxlan id 1020 \
+ local 10.0.0.1 remote 10.0.0.2 dstport 4789 \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx20 up
+
+ ip link set dev vx20 master br1
+ bridge vlan add vid 20 dev vx20 pvid untagged
+
+ ip link set dev $swp1 master br1
+ ip link set dev $swp1 up
+ bridge vlan add vid 10 dev $swp1 pvid untagged
+
+ ip link set dev $swp2 master br1
+ ip link set dev $swp2 up
+ bridge vlan add vid 20 dev $swp2 pvid untagged
+
+ ip link add name vx4001 type vxlan id 104001 \
+ local 10.0.0.1 dstport 4789 \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx4001 up
+
+ ip link set dev vx4001 master br1
+ bridge vlan add vid 4001 dev vx4001 pvid untagged
+
+ ip address add 10.0.0.1/32 dev lo
+
+ # Create SVIs
+ vrf_create "vrf-green"
+ ip link set dev vrf-green up
+
+ ip link add link br1 name vlan10 up master vrf-green type vlan id 10
+ ip address add 10.1.1.11/24 dev vlan10
+ ip link add link vlan10 name vlan10-v up master vrf-green \
+ address 00:00:5e:00:01:01 type macvlan mode private
+ ip address add 10.1.1.1/24 dev vlan10-v
+
+ ip link add link br1 name vlan20 up master vrf-green type vlan id 20
+ ip address add 10.1.2.11/24 dev vlan20
+ ip link add link vlan20 name vlan20-v up master vrf-green \
+ address 00:00:5e:00:01:01 type macvlan mode private
+ ip address add 10.1.2.1/24 dev vlan20-v
+
+ ip link add link br1 name vlan4001 up master vrf-green \
+ type vlan id 4001
+
+ bridge vlan add vid 10 dev br1 self
+ bridge vlan add vid 20 dev br1 self
+ bridge vlan add vid 4001 dev br1 self
+
+ bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 10
+ bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 20
+
+ sysctl_set net.ipv4.conf.all.rp_filter 0
+ sysctl_set net.ipv4.conf.vlan10-v.rp_filter 0
+ sysctl_set net.ipv4.conf.vlan20-v.rp_filter 0
+}
+
+switch_destroy()
+{
+ sysctl_restore net.ipv4.conf.all.rp_filter
+
+ bridge fdb del 00:00:5e:00:01:01 dev br1 self local vlan 20
+ bridge fdb del 00:00:5e:00:01:01 dev br1 self local vlan 10
+
+ bridge vlan del vid 4001 dev br1 self
+ bridge vlan del vid 20 dev br1 self
+ bridge vlan del vid 10 dev br1 self
+
+ ip link del dev vlan4001
+
+ ip link del dev vlan20
+
+ ip link del dev vlan10
+
+ vrf_destroy "vrf-green"
+
+ ip address del 10.0.0.1/32 dev lo
+
+ bridge vlan del vid 20 dev $swp2
+ ip link set dev $swp2 down
+ ip link set dev $swp2 nomaster
+
+ bridge vlan del vid 10 dev $swp1
+ ip link set dev $swp1 down
+ ip link set dev $swp1 nomaster
+
+ bridge vlan del vid 4001 dev vx4001
+ ip link set dev vx4001 nomaster
+
+ ip link set dev vx4001 down
+ ip link del dev vx4001
+
+ bridge vlan del vid 20 dev vx20
+ ip link set dev vx20 nomaster
+
+ ip link set dev vx20 down
+ ip link del dev vx20
+
+ bridge vlan del vid 10 dev vx10
+ ip link set dev vx10 nomaster
+
+ ip link set dev vx10 down
+ ip link del dev vx10
+
+ ip route del 10.0.0.2/32 nexthop via 192.0.2.2
+ ip address del dev $rp1 192.0.2.1/24
+ ip link set dev $rp1 down
+
+ ip link set dev br1 down
+ ip link del dev br1
+}
+
+spine_create()
+{
+ vrf_create "vrf-spine"
+ ip link set dev $rp2 master vrf-spine
+ ip link set dev v1 master vrf-spine
+ ip link set dev vrf-spine up
+ ip link set dev $rp2 up
+ ip link set dev v1 up
+
+ ip address add 192.0.2.2/24 dev $rp2
+ ip address add 192.0.3.2/24 dev v1
+
+ ip route add 10.0.0.1/32 vrf vrf-spine nexthop via 192.0.2.1
+ ip route add 10.0.0.2/32 vrf vrf-spine nexthop via 192.0.3.1
+}
+
+spine_destroy()
+{
+ ip route del 10.0.0.2/32 vrf vrf-spine nexthop via 192.0.3.1
+ ip route del 10.0.0.1/32 vrf vrf-spine nexthop via 192.0.2.1
+
+ ip address del 192.0.3.2/24 dev v1
+ ip address del 192.0.2.2/24 dev $rp2
+
+ ip link set dev v1 down
+ ip link set dev $rp2 down
+ vrf_destroy "vrf-spine"
+}
+
+ns_h1_create()
+{
+ hx_create "vrf-h1" w2 10.1.1.102 10.1.1.1
+}
+export -f ns_h1_create
+
+ns_h2_create()
+{
+ hx_create "vrf-h2" w4 10.1.2.102 10.1.2.1
+}
+export -f ns_h2_create
+
+ns_switch_create()
+{
+ ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+ mcast_snooping 0
+ ip link set dev br1 up
+
+ ip link set dev v2 up
+ ip address add dev v2 192.0.3.1/24
+ ip route add 10.0.0.1/32 nexthop via 192.0.3.2
+
+ ip link add name vx10 type vxlan id 1010 \
+ local 10.0.0.2 remote 10.0.0.1 dstport 4789 \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx10 up
+
+ ip link set dev vx10 master br1
+ bridge vlan add vid 10 dev vx10 pvid untagged
+
+ ip link add name vx20 type vxlan id 1020 \
+ local 10.0.0.2 remote 10.0.0.1 dstport 4789 \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx20 up
+
+ ip link set dev vx20 master br1
+ bridge vlan add vid 20 dev vx20 pvid untagged
+
+ ip link add name vx4001 type vxlan id 104001 \
+ local 10.0.0.2 dstport 4789 \
+ nolearning noudpcsum tos inherit ttl 100
+ ip link set dev vx4001 up
+
+ ip link set dev vx4001 master br1
+ bridge vlan add vid 4001 dev vx4001 pvid untagged
+
+ ip link set dev w1 master br1
+ ip link set dev w1 up
+ bridge vlan add vid 10 dev w1 pvid untagged
+
+ ip link set dev w3 master br1
+ ip link set dev w3 up
+ bridge vlan add vid 20 dev w3 pvid untagged
+
+ ip address add 10.0.0.2/32 dev lo
+
+ # Create SVIs
+ vrf_create "vrf-green"
+ ip link set dev vrf-green up
+
+ ip link add link br1 name vlan10 up master vrf-green type vlan id 10
+ ip address add 10.1.1.12/24 dev vlan10
+ ip link add link vlan10 name vlan10-v up master vrf-green \
+ address 00:00:5e:00:01:01 type macvlan mode private
+ ip address add 10.1.1.1/24 dev vlan10-v
+
+ ip link add link br1 name vlan20 up master vrf-green type vlan id 20
+ ip address add 10.1.2.12/24 dev vlan20
+ ip link add link vlan20 name vlan20-v up master vrf-green \
+ address 00:00:5e:00:01:01 type macvlan mode private
+ ip address add 10.1.2.1/24 dev vlan20-v
+
+ ip link add link br1 name vlan4001 up master vrf-green \
+ type vlan id 4001
+
+ bridge vlan add vid 10 dev br1 self
+ bridge vlan add vid 20 dev br1 self
+ bridge vlan add vid 4001 dev br1 self
+
+ bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 10
+ bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 20
+
+ sysctl_set net.ipv4.conf.all.rp_filter 0
+ sysctl_set net.ipv4.conf.vlan10-v.rp_filter 0
+ sysctl_set net.ipv4.conf.vlan20-v.rp_filter 0
+}
+export -f ns_switch_create
+
+ns_init()
+{
+ ip link add name w1 type veth peer name w2
+ ip link add name w3 type veth peer name w4
+
+ ip link set dev lo up
+
+ ns_h1_create
+ ns_h2_create
+ ns_switch_create
+}
+export -f ns_init
+
+ns1_create()
+{
+ ip netns add ns1
+ ip link set dev v2 netns ns1
+ in_ns ns1 ns_init
+}
+
+ns1_destroy()
+{
+ ip netns exec ns1 ip link set dev v2 netns 1
+ ip netns del ns1
+}
+
+__l2_vni_init()
+{
+ local mac1=$1; shift
+ local mac2=$1; shift
+ local ip1=$1; shift
+ local ip2=$1; shift
+ local dst=$1; shift
+
+ bridge fdb add $mac1 dev vx10 self master extern_learn static \
+ dst $dst vlan 10
+ bridge fdb add $mac2 dev vx20 self master extern_learn static \
+ dst $dst vlan 20
+
+ ip neigh add $ip1 lladdr $mac1 nud noarp dev vlan10 \
+ extern_learn
+ ip neigh add $ip2 lladdr $mac2 nud noarp dev vlan20 \
+ extern_learn
+}
+export -f __l2_vni_init
+
+l2_vni_init()
+{
+ local h1_ns_mac=$(in_ns ns1 mac_get w2)
+ local h2_ns_mac=$(in_ns ns1 mac_get w4)
+ local h1_mac=$(mac_get $h1)
+ local h2_mac=$(mac_get $h2)
+
+ __l2_vni_init $h1_ns_mac $h2_ns_mac 10.1.1.102 10.1.2.102 10.0.0.2
+ in_ns ns1 __l2_vni_init $h1_mac $h2_mac 10.1.1.101 10.1.2.101 10.0.0.1
+}
+
+__l3_vni_init()
+{
+ local mac=$1; shift
+ local vtep_ip=$1; shift
+ local host1_ip=$1; shift
+ local host2_ip=$1; shift
+
+ bridge fdb add $mac dev vx4001 self master extern_learn static \
+ dst $vtep_ip vlan 4001
+
+ ip neigh add $vtep_ip lladdr $mac nud noarp dev vlan4001 extern_learn
+
+ ip route add $host1_ip/32 vrf vrf-green nexthop via $vtep_ip \
+ dev vlan4001 onlink
+ ip route add $host2_ip/32 vrf vrf-green nexthop via $vtep_ip \
+ dev vlan4001 onlink
+}
+export -f __l3_vni_init
+
+l3_vni_init()
+{
+ local vlan4001_ns_mac=$(in_ns ns1 mac_get vlan4001)
+ local vlan4001_mac=$(mac_get vlan4001)
+
+ __l3_vni_init $vlan4001_ns_mac 10.0.0.2 10.1.1.102 10.1.2.102
+ in_ns ns1 __l3_vni_init $vlan4001_mac 10.0.0.1 10.1.1.101 10.1.2.101
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ rp1=${NETIFS[p5]}
+ rp2=${NETIFS[p6]}
+
+ vrf_prepare
+ forwarding_enable
+
+ h1_create
+ h2_create
+ switch_create
+
+ ip link add name v1 type veth peer name v2
+ spine_create
+ ns1_create
+
+ l2_vni_init
+ l3_vni_init
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ ns1_destroy
+ spine_destroy
+ ip link del dev v1
+
+ switch_destroy
+ h2_destroy
+ h1_destroy
+
+ forwarding_restore
+ vrf_cleanup
+}
+
+ping_ipv4()
+{
+ ping_test $h1 10.1.2.101 ": local->local vid 10->vid 20"
+ ping_test $h1 10.1.1.102 ": local->remote vid 10->vid 10"
+ ping_test $h2 10.1.2.102 ": local->remote vid 20->vid 20"
+ ping_test $h1 10.1.2.102 ": local->remote vid 10->vid 20"
+ ping_test $h2 10.1.1.102 ": local->remote vid 20->vid 10"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/hwtstamp_config.c b/tools/testing/selftests/net/hwtstamp_config.c
new file mode 100644
index 000000000..e1fdee841
--- /dev/null
+++ b/tools/testing/selftests/net/hwtstamp_config.c
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Test program for SIOC{G,S}HWTSTAMP
+ * Copyright 2013 Solarflare Communications
+ * Author: Ben Hutchings
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+
+#include <linux/if.h>
+#include <linux/net_tstamp.h>
+#include <linux/sockios.h>
+
+static int
+lookup_value(const char **names, int size, const char *name)
+{
+ int value;
+
+ for (value = 0; value < size; value++)
+ if (names[value] && strcasecmp(names[value], name) == 0)
+ return value;
+
+ return -1;
+}
+
+static const char *
+lookup_name(const char **names, int size, int value)
+{
+ return (value >= 0 && value < size) ? names[value] : NULL;
+}
+
+static void list_names(FILE *f, const char **names, int size)
+{
+ int value;
+
+ for (value = 0; value < size; value++)
+ if (names[value])
+ fprintf(f, " %s\n", names[value]);
+}
+
+static const char *tx_types[] = {
+#define TX_TYPE(name) [HWTSTAMP_TX_ ## name] = #name
+ TX_TYPE(OFF),
+ TX_TYPE(ON),
+ TX_TYPE(ONESTEP_SYNC)
+#undef TX_TYPE
+};
+#define N_TX_TYPES ((int)(sizeof(tx_types) / sizeof(tx_types[0])))
+
+static const char *rx_filters[] = {
+#define RX_FILTER(name) [HWTSTAMP_FILTER_ ## name] = #name
+ RX_FILTER(NONE),
+ RX_FILTER(ALL),
+ RX_FILTER(SOME),
+ RX_FILTER(PTP_V1_L4_EVENT),
+ RX_FILTER(PTP_V1_L4_SYNC),
+ RX_FILTER(PTP_V1_L4_DELAY_REQ),
+ RX_FILTER(PTP_V2_L4_EVENT),
+ RX_FILTER(PTP_V2_L4_SYNC),
+ RX_FILTER(PTP_V2_L4_DELAY_REQ),
+ RX_FILTER(PTP_V2_L2_EVENT),
+ RX_FILTER(PTP_V2_L2_SYNC),
+ RX_FILTER(PTP_V2_L2_DELAY_REQ),
+ RX_FILTER(PTP_V2_EVENT),
+ RX_FILTER(PTP_V2_SYNC),
+ RX_FILTER(PTP_V2_DELAY_REQ),
+#undef RX_FILTER
+};
+#define N_RX_FILTERS ((int)(sizeof(rx_filters) / sizeof(rx_filters[0])))
+
+static void usage(void)
+{
+ fputs("Usage: hwtstamp_config if_name [tx_type rx_filter]\n"
+ "tx_type is any of (case-insensitive):\n",
+ stderr);
+ list_names(stderr, tx_types, N_TX_TYPES);
+ fputs("rx_filter is any of (case-insensitive):\n", stderr);
+ list_names(stderr, rx_filters, N_RX_FILTERS);
+}
+
+int main(int argc, char **argv)
+{
+ struct ifreq ifr;
+ struct hwtstamp_config config;
+ const char *name;
+ int sock;
+
+ if ((argc != 2 && argc != 4) || (strlen(argv[1]) >= IFNAMSIZ)) {
+ usage();
+ return 2;
+ }
+
+ if (argc == 4) {
+ config.flags = 0;
+ config.tx_type = lookup_value(tx_types, N_TX_TYPES, argv[2]);
+ config.rx_filter = lookup_value(rx_filters, N_RX_FILTERS, argv[3]);
+ if (config.tx_type < 0 || config.rx_filter < 0) {
+ usage();
+ return 2;
+ }
+ }
+
+ sock = socket(AF_INET, SOCK_DGRAM, 0);
+ if (sock < 0) {
+ perror("socket");
+ return 1;
+ }
+
+ strcpy(ifr.ifr_name, argv[1]);
+ ifr.ifr_data = (caddr_t)&config;
+
+ if (ioctl(sock, (argc == 2) ? SIOCGHWTSTAMP : SIOCSHWTSTAMP, &ifr)) {
+ perror("ioctl");
+ return 1;
+ }
+
+ printf("flags = %#x\n", config.flags);
+ name = lookup_name(tx_types, N_TX_TYPES, config.tx_type);
+ if (name)
+ printf("tx_type = %s\n", name);
+ else
+ printf("tx_type = %d\n", config.tx_type);
+ name = lookup_name(rx_filters, N_RX_FILTERS, config.rx_filter);
+ if (name)
+ printf("rx_filter = %s\n", name);
+ else
+ printf("rx_filter = %d\n", config.rx_filter);
+
+ return 0;
+}
diff --git a/tools/testing/selftests/net/icmp_redirect.sh b/tools/testing/selftests/net/icmp_redirect.sh
new file mode 100755
index 000000000..104a7a5f1
--- /dev/null
+++ b/tools/testing/selftests/net/icmp_redirect.sh
@@ -0,0 +1,537 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# redirect test
+#
+# .253 +----+
+# +----| r1 |
+# | +----+
+# +----+ | |.1
+# | h1 |--------------+ | 10.1.1.0/30 2001:db8:1::0/126
+# +----+ .1 | |.2
+# 172.16.1/24 | +----+ +----+
+# 2001:db8:16:1/64 +----| r2 |-------------------| h2 |
+# .254 +----+ .254 .2 +----+
+# 172.16.2/24
+# 2001:db8:16:2/64
+#
+# Route from h1 to h2 goes through r1, eth1 - connection between r1 and r2.
+# Route on r1 changed to go to r2 via eth0. This causes a redirect to be sent
+# from r1 to h1 telling h1 to use r2 when talking to h2.
+
+VERBOSE=0
+PAUSE_ON_FAIL=no
+
+H1_N1_IP=172.16.1.1
+R1_N1_IP=172.16.1.253
+R2_N1_IP=172.16.1.254
+
+H1_N1_IP6=2001:db8:16:1::1
+R1_N1_IP6=2001:db8:16:1::253
+R2_N1_IP6=2001:db8:16:1::254
+
+R1_R2_N1_IP=10.1.1.1
+R2_R1_N1_IP=10.1.1.2
+
+R1_R2_N1_IP6=2001:db8:1::1
+R2_R1_N1_IP6=2001:db8:1::2
+
+H2_N2=172.16.2.0/24
+H2_N2_6=2001:db8:16:2::/64
+H2_N2_IP=172.16.2.2
+R2_N2_IP=172.16.2.254
+H2_N2_IP6=2001:db8:16:2::2
+R2_N2_IP6=2001:db8:16:2::254
+
+VRF=red
+VRF_TABLE=1111
+
+################################################################################
+# helpers
+
+log_section()
+{
+ echo
+ echo "###########################################################################"
+ echo "$*"
+ echo "###########################################################################"
+ echo
+}
+
+log_test()
+{
+ local rc=$1
+ local expected=$2
+ local msg="$3"
+
+ if [ ${rc} -eq ${expected} ]; then
+ printf "TEST: %-60s [ OK ]\n" "${msg}"
+ nsuccess=$((nsuccess+1))
+ else
+ ret=1
+ nfail=$((nfail+1))
+ printf "TEST: %-60s [FAIL]\n" "${msg}"
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+ fi
+}
+
+log_debug()
+{
+ if [ "$VERBOSE" = "1" ]; then
+ echo "$*"
+ fi
+}
+
+run_cmd()
+{
+ local cmd="$*"
+ local out
+ local rc
+
+ if [ "$VERBOSE" = "1" ]; then
+ echo "COMMAND: $cmd"
+ fi
+
+ out=$(eval $cmd 2>&1)
+ rc=$?
+ if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+ echo "$out"
+ fi
+
+ [ "$VERBOSE" = "1" ] && echo
+
+ return $rc
+}
+
+get_linklocal()
+{
+ local ns=$1
+ local dev=$2
+ local addr
+
+ addr=$(ip -netns $ns -6 -br addr show dev ${dev} | \
+ awk '{
+ for (i = 3; i <= NF; ++i) {
+ if ($i ~ /^fe80/)
+ print $i
+ }
+ }'
+ )
+ addr=${addr/\/*}
+
+ [ -z "$addr" ] && return 1
+
+ echo $addr
+
+ return 0
+}
+
+################################################################################
+# setup and teardown
+
+cleanup()
+{
+ local ns
+
+ for ns in h1 h2 r1 r2; do
+ ip netns del $ns 2>/dev/null
+ done
+}
+
+create_vrf()
+{
+ local ns=$1
+
+ ip -netns ${ns} link add ${VRF} type vrf table ${VRF_TABLE}
+ ip -netns ${ns} link set ${VRF} up
+ ip -netns ${ns} route add vrf ${VRF} unreachable default metric 8192
+ ip -netns ${ns} -6 route add vrf ${VRF} unreachable default metric 8192
+
+ ip -netns ${ns} addr add 127.0.0.1/8 dev ${VRF}
+ ip -netns ${ns} -6 addr add ::1 dev ${VRF} nodad
+
+ ip -netns ${ns} ru del pref 0
+ ip -netns ${ns} ru add pref 32765 from all lookup local
+ ip -netns ${ns} -6 ru del pref 0
+ ip -netns ${ns} -6 ru add pref 32765 from all lookup local
+}
+
+setup()
+{
+ local ns
+
+ #
+ # create nodes as namespaces
+ #
+ for ns in h1 h2 r1 r2; do
+ ip netns add $ns
+ ip -netns $ns li set lo up
+
+ case "${ns}" in
+ h[12]) ip netns exec $ns sysctl -q -w net.ipv4.conf.all.accept_redirects=1
+ ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=0
+ ip netns exec $ns sysctl -q -w net.ipv6.conf.all.accept_redirects=1
+ ip netns exec $ns sysctl -q -w net.ipv6.conf.all.keep_addr_on_down=1
+ ;;
+ r[12]) ip netns exec $ns sysctl -q -w net.ipv4.ip_forward=1
+ ip netns exec $ns sysctl -q -w net.ipv4.conf.all.send_redirects=1
+ ip netns exec $ns sysctl -q -w net.ipv4.conf.default.rp_filter=0
+ ip netns exec $ns sysctl -q -w net.ipv4.conf.all.rp_filter=0
+
+ ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=1
+ ip netns exec $ns sysctl -q -w net.ipv6.route.mtu_expires=10
+ esac
+ done
+
+ #
+ # create interconnects
+ #
+ ip -netns h1 li add eth0 type veth peer name r1h1
+ ip -netns h1 li set r1h1 netns r1 name eth0 up
+
+ ip -netns h1 li add eth1 type veth peer name r2h1
+ ip -netns h1 li set r2h1 netns r2 name eth0 up
+
+ ip -netns h2 li add eth0 type veth peer name r2h2
+ ip -netns h2 li set eth0 up
+ ip -netns h2 li set r2h2 netns r2 name eth2 up
+
+ ip -netns r1 li add eth1 type veth peer name r2r1
+ ip -netns r1 li set eth1 up
+ ip -netns r1 li set r2r1 netns r2 name eth1 up
+
+ #
+ # h1
+ #
+ if [ "${WITH_VRF}" = "yes" ]; then
+ create_vrf "h1"
+ H1_VRF_ARG="vrf ${VRF}"
+ H1_PING_ARG="-I ${VRF}"
+ else
+ H1_VRF_ARG=
+ H1_PING_ARG=
+ fi
+ ip -netns h1 li add br0 type bridge
+ if [ "${WITH_VRF}" = "yes" ]; then
+ ip -netns h1 li set br0 vrf ${VRF} up
+ else
+ ip -netns h1 li set br0 up
+ fi
+ ip -netns h1 addr add dev br0 ${H1_N1_IP}/24
+ ip -netns h1 -6 addr add dev br0 ${H1_N1_IP6}/64 nodad
+ ip -netns h1 li set eth0 master br0 up
+ ip -netns h1 li set eth1 master br0 up
+
+ #
+ # h2
+ #
+ ip -netns h2 addr add dev eth0 ${H2_N2_IP}/24
+ ip -netns h2 ro add default via ${R2_N2_IP} dev eth0
+ ip -netns h2 -6 addr add dev eth0 ${H2_N2_IP6}/64 nodad
+ ip -netns h2 -6 ro add default via ${R2_N2_IP6} dev eth0
+
+ #
+ # r1
+ #
+ ip -netns r1 addr add dev eth0 ${R1_N1_IP}/24
+ ip -netns r1 -6 addr add dev eth0 ${R1_N1_IP6}/64 nodad
+ ip -netns r1 addr add dev eth1 ${R1_R2_N1_IP}/30
+ ip -netns r1 -6 addr add dev eth1 ${R1_R2_N1_IP6}/126 nodad
+
+ #
+ # r2
+ #
+ ip -netns r2 addr add dev eth0 ${R2_N1_IP}/24
+ ip -netns r2 -6 addr add dev eth0 ${R2_N1_IP6}/64 nodad
+ ip -netns r2 addr add dev eth1 ${R2_R1_N1_IP}/30
+ ip -netns r2 -6 addr add dev eth1 ${R2_R1_N1_IP6}/126 nodad
+ ip -netns r2 addr add dev eth2 ${R2_N2_IP}/24
+ ip -netns r2 -6 addr add dev eth2 ${R2_N2_IP6}/64 nodad
+
+ sleep 2
+
+ R1_LLADDR=$(get_linklocal r1 eth0)
+ if [ $? -ne 0 ]; then
+ echo "Error: Failed to get link-local address of r1's eth0"
+ exit 1
+ fi
+ log_debug "initial gateway is R1's lladdr = ${R1_LLADDR}"
+
+ R2_LLADDR=$(get_linklocal r2 eth0)
+ if [ $? -ne 0 ]; then
+ echo "Error: Failed to get link-local address of r2's eth0"
+ exit 1
+ fi
+ log_debug "initial gateway is R2's lladdr = ${R2_LLADDR}"
+}
+
+change_h2_mtu()
+{
+ local mtu=$1
+
+ run_cmd ip -netns h2 li set eth0 mtu ${mtu}
+ run_cmd ip -netns r2 li set eth2 mtu ${mtu}
+}
+
+check_exception()
+{
+ local mtu="$1"
+ local with_redirect="$2"
+ local desc="$3"
+
+ # From 172.16.1.101: icmp_seq=1 Redirect Host(New nexthop: 172.16.1.102)
+ if [ "$VERBOSE" = "1" ]; then
+ echo "Commands to check for exception:"
+ run_cmd ip -netns h1 ro get ${H1_VRF_ARG} ${H2_N2_IP}
+ run_cmd ip -netns h1 -6 ro get ${H1_VRF_ARG} ${H2_N2_IP6}
+ fi
+
+ if [ -n "${mtu}" ]; then
+ mtu=" mtu ${mtu}"
+ fi
+ if [ "$with_redirect" = "yes" ]; then
+ ip -netns h1 ro get ${H1_VRF_ARG} ${H2_N2_IP} | \
+ grep -q "cache <redirected> expires [0-9]*sec${mtu}"
+ elif [ -n "${mtu}" ]; then
+ ip -netns h1 ro get ${H1_VRF_ARG} ${H2_N2_IP} | \
+ grep -q "cache expires [0-9]*sec${mtu}"
+ else
+ # want to verify that neither mtu nor redirected appears in
+ # the route get output. The -v will wipe out the cache line
+ # if either are set so the last grep -q will not find a match
+ ip -netns h1 ro get ${H1_VRF_ARG} ${H2_N2_IP} | \
+ grep -E -v 'mtu|redirected' | grep -q "cache"
+ fi
+ log_test $? 0 "IPv4: ${desc}"
+
+ # No PMTU info for test "redirect" and "mtu exception plus redirect"
+ if [ "$with_redirect" = "yes" ] && [ "$desc" != "redirect exception plus mtu" ]; then
+ ip -netns h1 -6 ro get ${H1_VRF_ARG} ${H2_N2_IP6} | \
+ grep -v "mtu" | grep -q "${H2_N2_IP6} .*via ${R2_LLADDR} dev br0"
+ elif [ -n "${mtu}" ]; then
+ ip -netns h1 -6 ro get ${H1_VRF_ARG} ${H2_N2_IP6} | \
+ grep -q "${mtu}"
+ else
+ # IPv6 is a bit harder. First strip out the match if it
+ # contains an mtu exception and then look for the first
+ # gateway - R1's lladdr
+ ip -netns h1 -6 ro get ${H1_VRF_ARG} ${H2_N2_IP6} | \
+ grep -v "mtu" | grep -q "${R1_LLADDR}"
+ fi
+ log_test $? 0 "IPv6: ${desc}"
+}
+
+run_ping()
+{
+ local sz=$1
+
+ run_cmd ip netns exec h1 ping -q -M want -i 0.5 -c 10 -w 2 -s ${sz} ${H1_PING_ARG} ${H2_N2_IP}
+ run_cmd ip netns exec h1 ${ping6} -q -M want -i 0.5 -c 10 -w 2 -s ${sz} ${H1_PING_ARG} ${H2_N2_IP6}
+}
+
+replace_route_new()
+{
+ # r1 to h2 via r2 and eth0
+ run_cmd ip -netns r1 nexthop replace id 1 via ${R2_N1_IP} dev eth0
+ run_cmd ip -netns r1 nexthop replace id 2 via ${R2_LLADDR} dev eth0
+}
+
+reset_route_new()
+{
+ run_cmd ip -netns r1 nexthop flush
+ run_cmd ip -netns h1 nexthop flush
+
+ initial_route_new
+}
+
+initial_route_new()
+{
+ # r1 to h2 via r2 and eth1
+ run_cmd ip -netns r1 nexthop add id 1 via ${R2_R1_N1_IP} dev eth1
+ run_cmd ip -netns r1 ro add ${H2_N2} nhid 1
+
+ run_cmd ip -netns r1 nexthop add id 2 via ${R2_R1_N1_IP6} dev eth1
+ run_cmd ip -netns r1 -6 ro add ${H2_N2_6} nhid 2
+
+ # h1 to h2 via r1
+ run_cmd ip -netns h1 nexthop add id 1 via ${R1_N1_IP} dev br0
+ run_cmd ip -netns h1 ro add ${H1_VRF_ARG} ${H2_N2} nhid 1
+
+ run_cmd ip -netns h1 nexthop add id 2 via ${R1_LLADDR} dev br0
+ run_cmd ip -netns h1 -6 ro add ${H1_VRF_ARG} ${H2_N2_6} nhid 2
+}
+
+replace_route_legacy()
+{
+ # r1 to h2 via r2 and eth0
+ run_cmd ip -netns r1 ro replace ${H2_N2} via ${R2_N1_IP} dev eth0
+ run_cmd ip -netns r1 -6 ro replace ${H2_N2_6} via ${R2_LLADDR} dev eth0
+}
+
+reset_route_legacy()
+{
+ run_cmd ip -netns r1 ro del ${H2_N2}
+ run_cmd ip -netns r1 -6 ro del ${H2_N2_6}
+
+ run_cmd ip -netns h1 ro del ${H1_VRF_ARG} ${H2_N2}
+ run_cmd ip -netns h1 -6 ro del ${H1_VRF_ARG} ${H2_N2_6}
+
+ initial_route_legacy
+}
+
+initial_route_legacy()
+{
+ # r1 to h2 via r2 and eth1
+ run_cmd ip -netns r1 ro add ${H2_N2} via ${R2_R1_N1_IP} dev eth1
+ run_cmd ip -netns r1 -6 ro add ${H2_N2_6} via ${R2_R1_N1_IP6} dev eth1
+
+ # h1 to h2 via r1
+ # - IPv6 redirect only works if gateway is the LLA
+ run_cmd ip -netns h1 ro add ${H1_VRF_ARG} ${H2_N2} via ${R1_N1_IP} dev br0
+ run_cmd ip -netns h1 -6 ro add ${H1_VRF_ARG} ${H2_N2_6} via ${R1_LLADDR} dev br0
+}
+
+check_connectivity()
+{
+ local rc
+
+ run_cmd ip netns exec h1 ping -c1 -w1 ${H1_PING_ARG} ${H2_N2_IP}
+ rc=$?
+ run_cmd ip netns exec h1 ${ping6} -c1 -w1 ${H1_PING_ARG} ${H2_N2_IP6}
+ [ $? -ne 0 ] && rc=$?
+
+ return $rc
+}
+
+do_test()
+{
+ local ttype="$1"
+
+ eval initial_route_${ttype}
+
+ # verify connectivity
+ check_connectivity
+ if [ $? -ne 0 ]; then
+ echo "Error: Basic connectivity is broken"
+ ret=1
+ return
+ fi
+
+ # redirect exception followed by mtu
+ eval replace_route_${ttype}
+ run_ping 64
+ check_exception "" "yes" "redirect exception"
+
+ check_connectivity
+ if [ $? -ne 0 ]; then
+ echo "Error: Basic connectivity is broken after redirect"
+ ret=1
+ return
+ fi
+
+ change_h2_mtu 1300
+ run_ping 1350
+ check_exception "1300" "yes" "redirect exception plus mtu"
+
+ # remove exceptions and restore routing
+ change_h2_mtu 1500
+ eval reset_route_${ttype}
+
+ check_connectivity
+ if [ $? -ne 0 ]; then
+ echo "Error: Basic connectivity is broken after reset"
+ ret=1
+ return
+ fi
+ check_exception "" "no" "routing reset"
+
+ # MTU exception followed by redirect
+ change_h2_mtu 1300
+ run_ping 1350
+ check_exception "1300" "no" "mtu exception"
+
+ eval replace_route_${ttype}
+ run_ping 64
+ check_exception "1300" "yes" "mtu exception plus redirect"
+
+ check_connectivity
+ if [ $? -ne 0 ]; then
+ echo "Error: Basic connectivity is broken after redirect"
+ ret=1
+ return
+ fi
+}
+
+################################################################################
+# usage
+
+usage()
+{
+ cat <<EOF
+usage: ${0##*/} OPTS
+
+ -p Pause on fail
+ -v verbose mode (show commands and output)
+EOF
+}
+
+################################################################################
+# main
+
+# Some systems don't have a ping6 binary anymore
+which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
+
+ret=0
+nsuccess=0
+nfail=0
+
+while getopts :pv o
+do
+ case $o in
+ p) PAUSE_ON_FAIL=yes;;
+ v) VERBOSE=$(($VERBOSE + 1));;
+ *) usage; exit 1;;
+ esac
+done
+
+trap cleanup EXIT
+
+cleanup
+WITH_VRF=no
+setup
+
+log_section "Legacy routing"
+do_test "legacy"
+
+cleanup
+log_section "Legacy routing with VRF"
+WITH_VRF=yes
+setup
+do_test "legacy"
+
+cleanup
+log_section "Routing with nexthop objects"
+ip nexthop ls >/dev/null 2>&1
+if [ $? -eq 0 ]; then
+ WITH_VRF=no
+ setup
+ do_test "new"
+
+ cleanup
+ log_section "Routing with nexthop objects and VRF"
+ WITH_VRF=yes
+ setup
+ do_test "new"
+else
+ echo "Nexthop objects not supported; skipping tests"
+fi
+
+printf "\nTests passed: %3d\n" ${nsuccess}
+printf "Tests failed: %3d\n" ${nfail}
+
+exit $ret
diff --git a/tools/testing/selftests/net/in_netns.sh b/tools/testing/selftests/net/in_netns.sh
new file mode 100755
index 000000000..88795b510
--- /dev/null
+++ b/tools/testing/selftests/net/in_netns.sh
@@ -0,0 +1,23 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Execute a subprocess in a network namespace
+
+set -e
+
+readonly NETNS="ns-$(mktemp -u XXXXXX)"
+
+setup() {
+ ip netns add "${NETNS}"
+ ip -netns "${NETNS}" link set lo up
+}
+
+cleanup() {
+ ip netns del "${NETNS}"
+}
+
+trap cleanup EXIT
+setup
+
+ip netns exec "${NETNS}" "$@"
+exit "$?"
diff --git a/tools/testing/selftests/net/ip6_gre_headroom.sh b/tools/testing/selftests/net/ip6_gre_headroom.sh
new file mode 100755
index 000000000..5b41e8bb6
--- /dev/null
+++ b/tools/testing/selftests/net/ip6_gre_headroom.sh
@@ -0,0 +1,65 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test that enough headroom is reserved for the first packet passing through an
+# IPv6 GRE-like netdevice.
+
+setup_prepare()
+{
+ ip link add h1 type veth peer name swp1
+ ip link add h3 type veth peer name swp3
+
+ ip link set dev h1 up
+ ip address add 192.0.2.1/28 dev h1
+
+ ip link add dev vh3 type vrf table 20
+ ip link set dev h3 master vh3
+ ip link set dev vh3 up
+ ip link set dev h3 up
+
+ ip link set dev swp3 up
+ ip address add dev swp3 2001:db8:2::1/64
+ ip address add dev swp3 2001:db8:2::3/64
+
+ ip link set dev swp1 up
+ tc qdisc add dev swp1 clsact
+
+ ip link add name er6 type ip6erspan \
+ local 2001:db8:2::1 remote 2001:db8:2::2 oseq okey 123
+ ip link set dev er6 up
+
+ ip link add name gt6 type ip6gretap \
+ local 2001:db8:2::3 remote 2001:db8:2::4
+ ip link set dev gt6 up
+
+ sleep 1
+}
+
+cleanup()
+{
+ ip link del dev gt6
+ ip link del dev er6
+ ip link del dev swp1
+ ip link del dev swp3
+ ip link del dev vh3
+}
+
+test_headroom()
+{
+ local type=$1; shift
+ local tundev=$1; shift
+
+ tc filter add dev swp1 ingress pref 1000 matchall skip_hw \
+ action mirred egress mirror dev $tundev
+ ping -I h1 192.0.2.2 -c 1 -w 2 &> /dev/null
+ tc filter del dev swp1 ingress pref 1000
+
+ # If it doesn't panic, it passes.
+ printf "TEST: %-60s [PASS]\n" "$type headroom"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+test_headroom ip6gretap gt6
+test_headroom ip6erspan er6
diff --git a/tools/testing/selftests/net/ip_defrag.c b/tools/testing/selftests/net/ip_defrag.c
new file mode 100644
index 000000000..f9ed749fd
--- /dev/null
+++ b/tools/testing/selftests/net/ip_defrag.c
@@ -0,0 +1,472 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <linux/in.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/udp.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+static bool cfg_do_ipv4;
+static bool cfg_do_ipv6;
+static bool cfg_verbose;
+static bool cfg_overlap;
+static bool cfg_permissive;
+static unsigned short cfg_port = 9000;
+
+const struct in_addr addr4 = { .s_addr = __constant_htonl(INADDR_LOOPBACK + 2) };
+const struct in6_addr addr6 = IN6ADDR_LOOPBACK_INIT;
+
+#define IP4_HLEN (sizeof(struct iphdr))
+#define IP6_HLEN (sizeof(struct ip6_hdr))
+#define UDP_HLEN (sizeof(struct udphdr))
+
+/* IPv6 fragment header lenth. */
+#define FRAG_HLEN 8
+
+static int payload_len;
+static int max_frag_len;
+
+#define MSG_LEN_MAX 10000 /* Max UDP payload length. */
+
+#define IP4_MF (1u << 13) /* IPv4 MF flag. */
+#define IP6_MF (1) /* IPv6 MF flag. */
+
+#define CSUM_MANGLED_0 (0xffff)
+
+static uint8_t udp_payload[MSG_LEN_MAX];
+static uint8_t ip_frame[IP_MAXPACKET];
+static uint32_t ip_id = 0xabcd;
+static int msg_counter;
+static int frag_counter;
+static unsigned int seed;
+
+/* Receive a UDP packet. Validate it matches udp_payload. */
+static void recv_validate_udp(int fd_udp)
+{
+ ssize_t ret;
+ static uint8_t recv_buff[MSG_LEN_MAX];
+
+ ret = recv(fd_udp, recv_buff, payload_len, 0);
+ msg_counter++;
+
+ if (cfg_overlap) {
+ if (ret == -1 && (errno == ETIMEDOUT || errno == EAGAIN))
+ return; /* OK */
+ if (!cfg_permissive) {
+ if (ret != -1)
+ error(1, 0, "recv: expected timeout; got %d",
+ (int)ret);
+ error(1, errno, "recv: expected timeout: %d", errno);
+ }
+ }
+
+ if (ret == -1)
+ error(1, errno, "recv: payload_len = %d max_frag_len = %d",
+ payload_len, max_frag_len);
+ if (ret != payload_len)
+ error(1, 0, "recv: wrong size: %d vs %d", (int)ret, payload_len);
+ if (memcmp(udp_payload, recv_buff, payload_len))
+ error(1, 0, "recv: wrong data");
+}
+
+static uint32_t raw_checksum(uint8_t *buf, int len, uint32_t sum)
+{
+ int i;
+
+ for (i = 0; i < (len & ~1U); i += 2) {
+ sum += (u_int16_t)ntohs(*((u_int16_t *)(buf + i)));
+ if (sum > 0xffff)
+ sum -= 0xffff;
+ }
+
+ if (i < len) {
+ sum += buf[i] << 8;
+ if (sum > 0xffff)
+ sum -= 0xffff;
+ }
+
+ return sum;
+}
+
+static uint16_t udp_checksum(struct ip *iphdr, struct udphdr *udphdr)
+{
+ uint32_t sum = 0;
+ uint16_t res;
+
+ sum = raw_checksum((uint8_t *)&iphdr->ip_src, 2 * sizeof(iphdr->ip_src),
+ IPPROTO_UDP + (uint32_t)(UDP_HLEN + payload_len));
+ sum = raw_checksum((uint8_t *)udphdr, UDP_HLEN, sum);
+ sum = raw_checksum((uint8_t *)udp_payload, payload_len, sum);
+ res = 0xffff & ~sum;
+ if (res)
+ return htons(res);
+ else
+ return CSUM_MANGLED_0;
+}
+
+static uint16_t udp6_checksum(struct ip6_hdr *iphdr, struct udphdr *udphdr)
+{
+ uint32_t sum = 0;
+ uint16_t res;
+
+ sum = raw_checksum((uint8_t *)&iphdr->ip6_src, 2 * sizeof(iphdr->ip6_src),
+ IPPROTO_UDP);
+ sum = raw_checksum((uint8_t *)&udphdr->len, sizeof(udphdr->len), sum);
+ sum = raw_checksum((uint8_t *)udphdr, UDP_HLEN, sum);
+ sum = raw_checksum((uint8_t *)udp_payload, payload_len, sum);
+ res = 0xffff & ~sum;
+ if (res)
+ return htons(res);
+ else
+ return CSUM_MANGLED_0;
+}
+
+static void send_fragment(int fd_raw, struct sockaddr *addr, socklen_t alen,
+ int offset, bool ipv6)
+{
+ int frag_len;
+ int res;
+ int payload_offset = offset > 0 ? offset - UDP_HLEN : 0;
+ uint8_t *frag_start = ipv6 ? ip_frame + IP6_HLEN + FRAG_HLEN :
+ ip_frame + IP4_HLEN;
+
+ if (offset == 0) {
+ struct udphdr udphdr;
+ udphdr.source = htons(cfg_port + 1);
+ udphdr.dest = htons(cfg_port);
+ udphdr.len = htons(UDP_HLEN + payload_len);
+ udphdr.check = 0;
+ if (ipv6)
+ udphdr.check = udp6_checksum((struct ip6_hdr *)ip_frame, &udphdr);
+ else
+ udphdr.check = udp_checksum((struct ip *)ip_frame, &udphdr);
+ memcpy(frag_start, &udphdr, UDP_HLEN);
+ }
+
+ if (ipv6) {
+ struct ip6_hdr *ip6hdr = (struct ip6_hdr *)ip_frame;
+ struct ip6_frag *fraghdr = (struct ip6_frag *)(ip_frame + IP6_HLEN);
+ if (payload_len - payload_offset <= max_frag_len && offset > 0) {
+ /* This is the last fragment. */
+ frag_len = FRAG_HLEN + payload_len - payload_offset;
+ fraghdr->ip6f_offlg = htons(offset);
+ } else {
+ frag_len = FRAG_HLEN + max_frag_len;
+ fraghdr->ip6f_offlg = htons(offset | IP6_MF);
+ }
+ ip6hdr->ip6_plen = htons(frag_len);
+ if (offset == 0)
+ memcpy(frag_start + UDP_HLEN, udp_payload,
+ frag_len - FRAG_HLEN - UDP_HLEN);
+ else
+ memcpy(frag_start, udp_payload + payload_offset,
+ frag_len - FRAG_HLEN);
+ frag_len += IP6_HLEN;
+ } else {
+ struct ip *iphdr = (struct ip *)ip_frame;
+ if (payload_len - payload_offset <= max_frag_len && offset > 0) {
+ /* This is the last fragment. */
+ frag_len = IP4_HLEN + payload_len - payload_offset;
+ iphdr->ip_off = htons(offset / 8);
+ } else {
+ frag_len = IP4_HLEN + max_frag_len;
+ iphdr->ip_off = htons(offset / 8 | IP4_MF);
+ }
+ iphdr->ip_len = htons(frag_len);
+ if (offset == 0)
+ memcpy(frag_start + UDP_HLEN, udp_payload,
+ frag_len - IP4_HLEN - UDP_HLEN);
+ else
+ memcpy(frag_start, udp_payload + payload_offset,
+ frag_len - IP4_HLEN);
+ }
+
+ res = sendto(fd_raw, ip_frame, frag_len, 0, addr, alen);
+ if (res < 0 && errno != EPERM)
+ error(1, errno, "send_fragment");
+ if (res >= 0 && res != frag_len)
+ error(1, 0, "send_fragment: %d vs %d", res, frag_len);
+
+ frag_counter++;
+}
+
+static void send_udp_frags(int fd_raw, struct sockaddr *addr,
+ socklen_t alen, bool ipv6)
+{
+ struct ip *iphdr = (struct ip *)ip_frame;
+ struct ip6_hdr *ip6hdr = (struct ip6_hdr *)ip_frame;
+ int res;
+ int offset;
+ int frag_len;
+
+ /* Send the UDP datagram using raw IP fragments: the 0th fragment
+ * has the UDP header; other fragments are pieces of udp_payload
+ * split in chunks of frag_len size.
+ *
+ * Odd fragments (1st, 3rd, 5th, etc.) are sent out first, then
+ * even fragments (0th, 2nd, etc.) are sent out.
+ */
+ if (ipv6) {
+ struct ip6_frag *fraghdr = (struct ip6_frag *)(ip_frame + IP6_HLEN);
+ ((struct sockaddr_in6 *)addr)->sin6_port = 0;
+ memset(ip6hdr, 0, sizeof(*ip6hdr));
+ ip6hdr->ip6_flow = htonl(6<<28); /* Version. */
+ ip6hdr->ip6_nxt = IPPROTO_FRAGMENT;
+ ip6hdr->ip6_hops = 255;
+ ip6hdr->ip6_src = addr6;
+ ip6hdr->ip6_dst = addr6;
+ fraghdr->ip6f_nxt = IPPROTO_UDP;
+ fraghdr->ip6f_reserved = 0;
+ fraghdr->ip6f_ident = htonl(ip_id++);
+ } else {
+ memset(iphdr, 0, sizeof(*iphdr));
+ iphdr->ip_hl = 5;
+ iphdr->ip_v = 4;
+ iphdr->ip_tos = 0;
+ iphdr->ip_id = htons(ip_id++);
+ iphdr->ip_ttl = 0x40;
+ iphdr->ip_p = IPPROTO_UDP;
+ iphdr->ip_src.s_addr = htonl(INADDR_LOOPBACK);
+ iphdr->ip_dst = addr4;
+ iphdr->ip_sum = 0;
+ }
+
+ /* Occasionally test in-order fragments. */
+ if (!cfg_overlap && (rand() % 100 < 15)) {
+ offset = 0;
+ while (offset < (UDP_HLEN + payload_len)) {
+ send_fragment(fd_raw, addr, alen, offset, ipv6);
+ offset += max_frag_len;
+ }
+ return;
+ }
+
+ /* Occasionally test IPv4 "runs" (see net/ipv4/ip_fragment.c) */
+ if (!cfg_overlap && (rand() % 100 < 20) &&
+ (payload_len > 9 * max_frag_len)) {
+ offset = 6 * max_frag_len;
+ while (offset < (UDP_HLEN + payload_len)) {
+ send_fragment(fd_raw, addr, alen, offset, ipv6);
+ offset += max_frag_len;
+ }
+ offset = 3 * max_frag_len;
+ while (offset < 6 * max_frag_len) {
+ send_fragment(fd_raw, addr, alen, offset, ipv6);
+ offset += max_frag_len;
+ }
+ offset = 0;
+ while (offset < 3 * max_frag_len) {
+ send_fragment(fd_raw, addr, alen, offset, ipv6);
+ offset += max_frag_len;
+ }
+ return;
+ }
+
+ /* Odd fragments. */
+ offset = max_frag_len;
+ while (offset < (UDP_HLEN + payload_len)) {
+ send_fragment(fd_raw, addr, alen, offset, ipv6);
+ /* IPv4 ignores duplicates, so randomly send a duplicate. */
+ if (rand() % 100 == 1)
+ send_fragment(fd_raw, addr, alen, offset, ipv6);
+ offset += 2 * max_frag_len;
+ }
+
+ if (cfg_overlap) {
+ /* Send an extra random fragment.
+ *
+ * Duplicates and some fragments completely inside
+ * previously sent fragments are dropped/ignored. So
+ * random offset and frag_len can result in a dropped
+ * fragment instead of a dropped queue/packet. Thus we
+ * hard-code offset and frag_len.
+ */
+ if (max_frag_len * 4 < payload_len || max_frag_len < 16) {
+ /* not enough payload for random offset and frag_len. */
+ offset = 8;
+ frag_len = UDP_HLEN + max_frag_len;
+ } else {
+ offset = rand() % (payload_len / 2);
+ frag_len = 2 * max_frag_len + 1 + rand() % 256;
+ }
+ if (ipv6) {
+ struct ip6_frag *fraghdr = (struct ip6_frag *)(ip_frame + IP6_HLEN);
+ /* sendto() returns EINVAL if offset + frag_len is too small. */
+ /* In IPv6 if !!(frag_len % 8), the fragment is dropped. */
+ frag_len &= ~0x7;
+ fraghdr->ip6f_offlg = htons(offset / 8 | IP6_MF);
+ ip6hdr->ip6_plen = htons(frag_len);
+ frag_len += IP6_HLEN;
+ } else {
+ frag_len += IP4_HLEN;
+ iphdr->ip_off = htons(offset / 8 | IP4_MF);
+ iphdr->ip_len = htons(frag_len);
+ }
+ res = sendto(fd_raw, ip_frame, frag_len, 0, addr, alen);
+ if (res < 0 && errno != EPERM)
+ error(1, errno, "sendto overlap: %d", frag_len);
+ if (res >= 0 && res != frag_len)
+ error(1, 0, "sendto overlap: %d vs %d", (int)res, frag_len);
+ frag_counter++;
+ }
+
+ /* Event fragments. */
+ offset = 0;
+ while (offset < (UDP_HLEN + payload_len)) {
+ send_fragment(fd_raw, addr, alen, offset, ipv6);
+ /* IPv4 ignores duplicates, so randomly send a duplicate. */
+ if (rand() % 100 == 1)
+ send_fragment(fd_raw, addr, alen, offset, ipv6);
+ offset += 2 * max_frag_len;
+ }
+}
+
+static void run_test(struct sockaddr *addr, socklen_t alen, bool ipv6)
+{
+ int fd_tx_raw, fd_rx_udp;
+ /* Frag queue timeout is set to one second in the calling script;
+ * socket timeout should be just a bit longer to avoid tests interfering
+ * with each other.
+ */
+ struct timeval tv = { .tv_sec = 1, .tv_usec = 10 };
+ int idx;
+ int min_frag_len = 8;
+
+ /* Initialize the payload. */
+ for (idx = 0; idx < MSG_LEN_MAX; ++idx)
+ udp_payload[idx] = idx % 256;
+
+ /* Open sockets. */
+ fd_tx_raw = socket(addr->sa_family, SOCK_RAW, IPPROTO_RAW);
+ if (fd_tx_raw == -1)
+ error(1, errno, "socket tx_raw");
+
+ fd_rx_udp = socket(addr->sa_family, SOCK_DGRAM, 0);
+ if (fd_rx_udp == -1)
+ error(1, errno, "socket rx_udp");
+ if (bind(fd_rx_udp, addr, alen))
+ error(1, errno, "bind");
+ /* Fail fast. */
+ if (setsockopt(fd_rx_udp, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)))
+ error(1, errno, "setsockopt rcv timeout");
+
+ for (payload_len = min_frag_len; payload_len < MSG_LEN_MAX;
+ payload_len += (rand() % 4096)) {
+ if (cfg_verbose)
+ printf("payload_len: %d\n", payload_len);
+
+ if (cfg_overlap) {
+ /* With overlaps, one send/receive pair below takes
+ * at least one second (== timeout) to run, so there
+ * is not enough test time to run a nested loop:
+ * the full overlap test takes 20-30 seconds.
+ */
+ max_frag_len = min_frag_len +
+ rand() % (1500 - FRAG_HLEN - min_frag_len);
+ send_udp_frags(fd_tx_raw, addr, alen, ipv6);
+ recv_validate_udp(fd_rx_udp);
+ } else {
+ /* Without overlaps, each packet reassembly (== one
+ * send/receive pair below) takes very little time to
+ * run, so we can easily afford more thourough testing
+ * with a nested loop: the full non-overlap test takes
+ * less than one second).
+ */
+ max_frag_len = min_frag_len;
+ do {
+ send_udp_frags(fd_tx_raw, addr, alen, ipv6);
+ recv_validate_udp(fd_rx_udp);
+ max_frag_len += 8 * (rand() % 8);
+ } while (max_frag_len < (1500 - FRAG_HLEN) &&
+ max_frag_len <= payload_len);
+ }
+ }
+
+ /* Cleanup. */
+ if (close(fd_tx_raw))
+ error(1, errno, "close tx_raw");
+ if (close(fd_rx_udp))
+ error(1, errno, "close rx_udp");
+
+ if (cfg_verbose)
+ printf("processed %d messages, %d fragments\n",
+ msg_counter, frag_counter);
+
+ fprintf(stderr, "PASS\n");
+}
+
+
+static void run_test_v4(void)
+{
+ struct sockaddr_in addr = {0};
+
+ addr.sin_family = AF_INET;
+ addr.sin_port = htons(cfg_port);
+ addr.sin_addr = addr4;
+
+ run_test((void *)&addr, sizeof(addr), false /* !ipv6 */);
+}
+
+static void run_test_v6(void)
+{
+ struct sockaddr_in6 addr = {0};
+
+ addr.sin6_family = AF_INET6;
+ addr.sin6_port = htons(cfg_port);
+ addr.sin6_addr = addr6;
+
+ run_test((void *)&addr, sizeof(addr), true /* ipv6 */);
+}
+
+static void parse_opts(int argc, char **argv)
+{
+ int c;
+
+ while ((c = getopt(argc, argv, "46opv")) != -1) {
+ switch (c) {
+ case '4':
+ cfg_do_ipv4 = true;
+ break;
+ case '6':
+ cfg_do_ipv6 = true;
+ break;
+ case 'o':
+ cfg_overlap = true;
+ break;
+ case 'p':
+ cfg_permissive = true;
+ break;
+ case 'v':
+ cfg_verbose = true;
+ break;
+ default:
+ error(1, 0, "%s: parse error", argv[0]);
+ }
+ }
+}
+
+int main(int argc, char **argv)
+{
+ parse_opts(argc, argv);
+ seed = time(NULL);
+ srand(seed);
+ /* Print the seed to track/reproduce potential failures. */
+ printf("seed = %d\n", seed);
+
+ if (cfg_do_ipv4)
+ run_test_v4();
+ if (cfg_do_ipv6)
+ run_test_v6();
+
+ return 0;
+}
diff --git a/tools/testing/selftests/net/ip_defrag.sh b/tools/testing/selftests/net/ip_defrag.sh
new file mode 100755
index 000000000..ceb7ad4db
--- /dev/null
+++ b/tools/testing/selftests/net/ip_defrag.sh
@@ -0,0 +1,64 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run a couple of IP defragmentation tests.
+
+set +x
+set -e
+
+modprobe -q nf_defrag_ipv6
+
+readonly NETNS="ns-$(mktemp -u XXXXXX)"
+
+setup() {
+ ip netns add "${NETNS}"
+ ip -netns "${NETNS}" link set lo up
+
+ ip netns exec "${NETNS}" sysctl -w net.ipv4.ipfrag_high_thresh=9000000 >/dev/null 2>&1
+ ip netns exec "${NETNS}" sysctl -w net.ipv4.ipfrag_low_thresh=7000000 >/dev/null 2>&1
+ ip netns exec "${NETNS}" sysctl -w net.ipv4.ipfrag_time=1 >/dev/null 2>&1
+
+ ip netns exec "${NETNS}" sysctl -w net.ipv6.ip6frag_high_thresh=9000000 >/dev/null 2>&1
+ ip netns exec "${NETNS}" sysctl -w net.ipv6.ip6frag_low_thresh=7000000 >/dev/null 2>&1
+ ip netns exec "${NETNS}" sysctl -w net.ipv6.ip6frag_time=1 >/dev/null 2>&1
+
+ ip netns exec "${NETNS}" sysctl -w net.netfilter.nf_conntrack_frag6_high_thresh=9000000 >/dev/null 2>&1
+ ip netns exec "${NETNS}" sysctl -w net.netfilter.nf_conntrack_frag6_low_thresh=7000000 >/dev/null 2>&1
+ ip netns exec "${NETNS}" sysctl -w net.netfilter.nf_conntrack_frag6_timeout=1 >/dev/null 2>&1
+
+ # DST cache can get full with a lot of frags, with GC not keeping up with the test.
+ ip netns exec "${NETNS}" sysctl -w net.ipv6.route.max_size=65536 >/dev/null 2>&1
+}
+
+cleanup() {
+ ip netns del "${NETNS}"
+}
+
+trap cleanup EXIT
+setup
+
+echo "ipv4 defrag"
+ip netns exec "${NETNS}" ./ip_defrag -4
+
+echo "ipv4 defrag with overlaps"
+ip netns exec "${NETNS}" ./ip_defrag -4o
+
+echo "ipv6 defrag"
+ip netns exec "${NETNS}" ./ip_defrag -6
+
+echo "ipv6 defrag with overlaps"
+ip netns exec "${NETNS}" ./ip_defrag -6o
+
+# insert an nf_conntrack rule so that the codepath in nf_conntrack_reasm.c taken
+ip netns exec "${NETNS}" ip6tables -A INPUT -m conntrack --ctstate INVALID -j ACCEPT
+
+echo "ipv6 nf_conntrack defrag"
+ip netns exec "${NETNS}" ./ip_defrag -6
+
+echo "ipv6 nf_conntrack defrag with overlaps"
+# netfilter will drop some invalid packets, so we run the test in
+# permissive mode: i.e. pass the test if the packet is correctly assembled
+# even if we sent an overlap
+ip netns exec "${NETNS}" ./ip_defrag -6op
+
+echo "all tests done"
diff --git a/tools/testing/selftests/net/ipsec.c b/tools/testing/selftests/net/ipsec.c
new file mode 100644
index 000000000..03b048b66
--- /dev/null
+++ b/tools/testing/selftests/net/ipsec.c
@@ -0,0 +1,2195 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ipsec.c - Check xfrm on veth inside a net-ns.
+ * Copyright (c) 2018 Dmitry Safonov
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <asm/types.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <linux/limits.h>
+#include <linux/netlink.h>
+#include <linux/random.h>
+#include <linux/rtnetlink.h>
+#include <linux/veth.h>
+#include <linux/xfrm.h>
+#include <netinet/in.h>
+#include <net/if.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "../kselftest.h"
+
+#define printk(fmt, ...) \
+ ksft_print_msg("%d[%u] " fmt "\n", getpid(), __LINE__, ##__VA_ARGS__)
+
+#define pr_err(fmt, ...) printk(fmt ": %m", ##__VA_ARGS__)
+
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
+
+#define IPV4_STR_SZ 16 /* xxx.xxx.xxx.xxx is longest + \0 */
+#define MAX_PAYLOAD 2048
+#define XFRM_ALGO_KEY_BUF_SIZE 512
+#define MAX_PROCESSES (1 << 14) /* /16 mask divided by /30 subnets */
+#define INADDR_A ((in_addr_t) 0x0a000000) /* 10.0.0.0 */
+#define INADDR_B ((in_addr_t) 0xc0a80000) /* 192.168.0.0 */
+
+/* /30 mask for one veth connection */
+#define PREFIX_LEN 30
+#define child_ip(nr) (4*nr + 1)
+#define grchild_ip(nr) (4*nr + 2)
+
+#define VETH_FMT "ktst-%d"
+#define VETH_LEN 12
+
+static int nsfd_parent = -1;
+static int nsfd_childa = -1;
+static int nsfd_childb = -1;
+static long page_size;
+
+/*
+ * ksft_cnt is static in kselftest, so isn't shared with children.
+ * We have to send a test result back to parent and count there.
+ * results_fd is a pipe with test feedback from children.
+ */
+static int results_fd[2];
+
+const unsigned int ping_delay_nsec = 50 * 1000 * 1000;
+const unsigned int ping_timeout = 300;
+const unsigned int ping_count = 100;
+const unsigned int ping_success = 80;
+
+static void randomize_buffer(void *buf, size_t buflen)
+{
+ int *p = (int *)buf;
+ size_t words = buflen / sizeof(int);
+ size_t leftover = buflen % sizeof(int);
+
+ if (!buflen)
+ return;
+
+ while (words--)
+ *p++ = rand();
+
+ if (leftover) {
+ int tmp = rand();
+
+ memcpy(buf + buflen - leftover, &tmp, leftover);
+ }
+
+ return;
+}
+
+static int unshare_open(void)
+{
+ const char *netns_path = "/proc/self/ns/net";
+ int fd;
+
+ if (unshare(CLONE_NEWNET) != 0) {
+ pr_err("unshare()");
+ return -1;
+ }
+
+ fd = open(netns_path, O_RDONLY);
+ if (fd <= 0) {
+ pr_err("open(%s)", netns_path);
+ return -1;
+ }
+
+ return fd;
+}
+
+static int switch_ns(int fd)
+{
+ if (setns(fd, CLONE_NEWNET)) {
+ pr_err("setns()");
+ return -1;
+ }
+ return 0;
+}
+
+/*
+ * Running the test inside a new parent net namespace to bother less
+ * about cleanup on error-path.
+ */
+static int init_namespaces(void)
+{
+ nsfd_parent = unshare_open();
+ if (nsfd_parent <= 0)
+ return -1;
+
+ nsfd_childa = unshare_open();
+ if (nsfd_childa <= 0)
+ return -1;
+
+ if (switch_ns(nsfd_parent))
+ return -1;
+
+ nsfd_childb = unshare_open();
+ if (nsfd_childb <= 0)
+ return -1;
+
+ if (switch_ns(nsfd_parent))
+ return -1;
+ return 0;
+}
+
+static int netlink_sock(int *sock, uint32_t *seq_nr, int proto)
+{
+ if (*sock > 0) {
+ seq_nr++;
+ return 0;
+ }
+
+ *sock = socket(AF_NETLINK, SOCK_RAW | SOCK_CLOEXEC, proto);
+ if (*sock <= 0) {
+ pr_err("socket(AF_NETLINK)");
+ return -1;
+ }
+
+ randomize_buffer(seq_nr, sizeof(*seq_nr));
+
+ return 0;
+}
+
+static inline struct rtattr *rtattr_hdr(struct nlmsghdr *nh)
+{
+ return (struct rtattr *)((char *)(nh) + RTA_ALIGN((nh)->nlmsg_len));
+}
+
+static int rtattr_pack(struct nlmsghdr *nh, size_t req_sz,
+ unsigned short rta_type, const void *payload, size_t size)
+{
+ /* NLMSG_ALIGNTO == RTA_ALIGNTO, nlmsg_len already aligned */
+ struct rtattr *attr = rtattr_hdr(nh);
+ size_t nl_size = RTA_ALIGN(nh->nlmsg_len) + RTA_LENGTH(size);
+
+ if (req_sz < nl_size) {
+ printk("req buf is too small: %zu < %zu", req_sz, nl_size);
+ return -1;
+ }
+ nh->nlmsg_len = nl_size;
+
+ attr->rta_len = RTA_LENGTH(size);
+ attr->rta_type = rta_type;
+ memcpy(RTA_DATA(attr), payload, size);
+
+ return 0;
+}
+
+static struct rtattr *_rtattr_begin(struct nlmsghdr *nh, size_t req_sz,
+ unsigned short rta_type, const void *payload, size_t size)
+{
+ struct rtattr *ret = rtattr_hdr(nh);
+
+ if (rtattr_pack(nh, req_sz, rta_type, payload, size))
+ return 0;
+
+ return ret;
+}
+
+static inline struct rtattr *rtattr_begin(struct nlmsghdr *nh, size_t req_sz,
+ unsigned short rta_type)
+{
+ return _rtattr_begin(nh, req_sz, rta_type, 0, 0);
+}
+
+static inline void rtattr_end(struct nlmsghdr *nh, struct rtattr *attr)
+{
+ char *nlmsg_end = (char *)nh + nh->nlmsg_len;
+
+ attr->rta_len = nlmsg_end - (char *)attr;
+}
+
+static int veth_pack_peerb(struct nlmsghdr *nh, size_t req_sz,
+ const char *peer, int ns)
+{
+ struct ifinfomsg pi;
+ struct rtattr *peer_attr;
+
+ memset(&pi, 0, sizeof(pi));
+ pi.ifi_family = AF_UNSPEC;
+ pi.ifi_change = 0xFFFFFFFF;
+
+ peer_attr = _rtattr_begin(nh, req_sz, VETH_INFO_PEER, &pi, sizeof(pi));
+ if (!peer_attr)
+ return -1;
+
+ if (rtattr_pack(nh, req_sz, IFLA_IFNAME, peer, strlen(peer)))
+ return -1;
+
+ if (rtattr_pack(nh, req_sz, IFLA_NET_NS_FD, &ns, sizeof(ns)))
+ return -1;
+
+ rtattr_end(nh, peer_attr);
+
+ return 0;
+}
+
+static int netlink_check_answer(int sock)
+{
+ struct nlmsgerror {
+ struct nlmsghdr hdr;
+ int error;
+ struct nlmsghdr orig_msg;
+ } answer;
+
+ if (recv(sock, &answer, sizeof(answer), 0) < 0) {
+ pr_err("recv()");
+ return -1;
+ } else if (answer.hdr.nlmsg_type != NLMSG_ERROR) {
+ printk("expected NLMSG_ERROR, got %d", (int)answer.hdr.nlmsg_type);
+ return -1;
+ } else if (answer.error) {
+ printk("NLMSG_ERROR: %d: %s",
+ answer.error, strerror(-answer.error));
+ return answer.error;
+ }
+
+ return 0;
+}
+
+static int veth_add(int sock, uint32_t seq, const char *peera, int ns_a,
+ const char *peerb, int ns_b)
+{
+ uint16_t flags = NLM_F_REQUEST | NLM_F_ACK | NLM_F_EXCL | NLM_F_CREATE;
+ struct {
+ struct nlmsghdr nh;
+ struct ifinfomsg info;
+ char attrbuf[MAX_PAYLOAD];
+ } req;
+ const char veth_type[] = "veth";
+ struct rtattr *link_info, *info_data;
+
+ memset(&req, 0, sizeof(req));
+ req.nh.nlmsg_len = NLMSG_LENGTH(sizeof(req.info));
+ req.nh.nlmsg_type = RTM_NEWLINK;
+ req.nh.nlmsg_flags = flags;
+ req.nh.nlmsg_seq = seq;
+ req.info.ifi_family = AF_UNSPEC;
+ req.info.ifi_change = 0xFFFFFFFF;
+
+ if (rtattr_pack(&req.nh, sizeof(req), IFLA_IFNAME, peera, strlen(peera)))
+ return -1;
+
+ if (rtattr_pack(&req.nh, sizeof(req), IFLA_NET_NS_FD, &ns_a, sizeof(ns_a)))
+ return -1;
+
+ link_info = rtattr_begin(&req.nh, sizeof(req), IFLA_LINKINFO);
+ if (!link_info)
+ return -1;
+
+ if (rtattr_pack(&req.nh, sizeof(req), IFLA_INFO_KIND, veth_type, sizeof(veth_type)))
+ return -1;
+
+ info_data = rtattr_begin(&req.nh, sizeof(req), IFLA_INFO_DATA);
+ if (!info_data)
+ return -1;
+
+ if (veth_pack_peerb(&req.nh, sizeof(req), peerb, ns_b))
+ return -1;
+
+ rtattr_end(&req.nh, info_data);
+ rtattr_end(&req.nh, link_info);
+
+ if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {
+ pr_err("send()");
+ return -1;
+ }
+ return netlink_check_answer(sock);
+}
+
+static int ip4_addr_set(int sock, uint32_t seq, const char *intf,
+ struct in_addr addr, uint8_t prefix)
+{
+ uint16_t flags = NLM_F_REQUEST | NLM_F_ACK | NLM_F_EXCL | NLM_F_CREATE;
+ struct {
+ struct nlmsghdr nh;
+ struct ifaddrmsg info;
+ char attrbuf[MAX_PAYLOAD];
+ } req;
+
+ memset(&req, 0, sizeof(req));
+ req.nh.nlmsg_len = NLMSG_LENGTH(sizeof(req.info));
+ req.nh.nlmsg_type = RTM_NEWADDR;
+ req.nh.nlmsg_flags = flags;
+ req.nh.nlmsg_seq = seq;
+ req.info.ifa_family = AF_INET;
+ req.info.ifa_prefixlen = prefix;
+ req.info.ifa_index = if_nametoindex(intf);
+
+#ifdef DEBUG
+ {
+ char addr_str[IPV4_STR_SZ] = {};
+
+ strncpy(addr_str, inet_ntoa(addr), IPV4_STR_SZ - 1);
+
+ printk("ip addr set %s", addr_str);
+ }
+#endif
+
+ if (rtattr_pack(&req.nh, sizeof(req), IFA_LOCAL, &addr, sizeof(addr)))
+ return -1;
+
+ if (rtattr_pack(&req.nh, sizeof(req), IFA_ADDRESS, &addr, sizeof(addr)))
+ return -1;
+
+ if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {
+ pr_err("send()");
+ return -1;
+ }
+ return netlink_check_answer(sock);
+}
+
+static int link_set_up(int sock, uint32_t seq, const char *intf)
+{
+ struct {
+ struct nlmsghdr nh;
+ struct ifinfomsg info;
+ char attrbuf[MAX_PAYLOAD];
+ } req;
+
+ memset(&req, 0, sizeof(req));
+ req.nh.nlmsg_len = NLMSG_LENGTH(sizeof(req.info));
+ req.nh.nlmsg_type = RTM_NEWLINK;
+ req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
+ req.nh.nlmsg_seq = seq;
+ req.info.ifi_family = AF_UNSPEC;
+ req.info.ifi_change = 0xFFFFFFFF;
+ req.info.ifi_index = if_nametoindex(intf);
+ req.info.ifi_flags = IFF_UP;
+ req.info.ifi_change = IFF_UP;
+
+ if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {
+ pr_err("send()");
+ return -1;
+ }
+ return netlink_check_answer(sock);
+}
+
+static int ip4_route_set(int sock, uint32_t seq, const char *intf,
+ struct in_addr src, struct in_addr dst)
+{
+ struct {
+ struct nlmsghdr nh;
+ struct rtmsg rt;
+ char attrbuf[MAX_PAYLOAD];
+ } req;
+ unsigned int index = if_nametoindex(intf);
+
+ memset(&req, 0, sizeof(req));
+ req.nh.nlmsg_len = NLMSG_LENGTH(sizeof(req.rt));
+ req.nh.nlmsg_type = RTM_NEWROUTE;
+ req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | NLM_F_CREATE;
+ req.nh.nlmsg_seq = seq;
+ req.rt.rtm_family = AF_INET;
+ req.rt.rtm_dst_len = 32;
+ req.rt.rtm_table = RT_TABLE_MAIN;
+ req.rt.rtm_protocol = RTPROT_BOOT;
+ req.rt.rtm_scope = RT_SCOPE_LINK;
+ req.rt.rtm_type = RTN_UNICAST;
+
+ if (rtattr_pack(&req.nh, sizeof(req), RTA_DST, &dst, sizeof(dst)))
+ return -1;
+
+ if (rtattr_pack(&req.nh, sizeof(req), RTA_PREFSRC, &src, sizeof(src)))
+ return -1;
+
+ if (rtattr_pack(&req.nh, sizeof(req), RTA_OIF, &index, sizeof(index)))
+ return -1;
+
+ if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {
+ pr_err("send()");
+ return -1;
+ }
+
+ return netlink_check_answer(sock);
+}
+
+static int tunnel_set_route(int route_sock, uint32_t *route_seq, char *veth,
+ struct in_addr tunsrc, struct in_addr tundst)
+{
+ if (ip4_addr_set(route_sock, (*route_seq)++, "lo",
+ tunsrc, PREFIX_LEN)) {
+ printk("Failed to set ipv4 addr");
+ return -1;
+ }
+
+ if (ip4_route_set(route_sock, (*route_seq)++, veth, tunsrc, tundst)) {
+ printk("Failed to set ipv4 route");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int init_child(int nsfd, char *veth, unsigned int src, unsigned int dst)
+{
+ struct in_addr intsrc = inet_makeaddr(INADDR_B, src);
+ struct in_addr tunsrc = inet_makeaddr(INADDR_A, src);
+ struct in_addr tundst = inet_makeaddr(INADDR_A, dst);
+ int route_sock = -1, ret = -1;
+ uint32_t route_seq;
+
+ if (switch_ns(nsfd))
+ return -1;
+
+ if (netlink_sock(&route_sock, &route_seq, NETLINK_ROUTE)) {
+ printk("Failed to open netlink route socket in child");
+ return -1;
+ }
+
+ if (ip4_addr_set(route_sock, route_seq++, veth, intsrc, PREFIX_LEN)) {
+ printk("Failed to set ipv4 addr");
+ goto err;
+ }
+
+ if (link_set_up(route_sock, route_seq++, veth)) {
+ printk("Failed to bring up %s", veth);
+ goto err;
+ }
+
+ if (tunnel_set_route(route_sock, &route_seq, veth, tunsrc, tundst)) {
+ printk("Failed to add tunnel route on %s", veth);
+ goto err;
+ }
+ ret = 0;
+
+err:
+ close(route_sock);
+ return ret;
+}
+
+#define ALGO_LEN 64
+enum desc_type {
+ CREATE_TUNNEL = 0,
+ ALLOCATE_SPI,
+ MONITOR_ACQUIRE,
+ EXPIRE_STATE,
+ EXPIRE_POLICY,
+};
+const char *desc_name[] = {
+ "create tunnel",
+ "alloc spi",
+ "monitor acquire",
+ "expire state",
+ "expire policy"
+};
+struct xfrm_desc {
+ enum desc_type type;
+ uint8_t proto;
+ char a_algo[ALGO_LEN];
+ char e_algo[ALGO_LEN];
+ char c_algo[ALGO_LEN];
+ char ae_algo[ALGO_LEN];
+ unsigned int icv_len;
+ /* unsigned key_len; */
+};
+
+enum msg_type {
+ MSG_ACK = 0,
+ MSG_EXIT,
+ MSG_PING,
+ MSG_XFRM_PREPARE,
+ MSG_XFRM_ADD,
+ MSG_XFRM_DEL,
+ MSG_XFRM_CLEANUP,
+};
+
+struct test_desc {
+ enum msg_type type;
+ union {
+ struct {
+ in_addr_t reply_ip;
+ unsigned int port;
+ } ping;
+ struct xfrm_desc xfrm_desc;
+ } body;
+};
+
+struct test_result {
+ struct xfrm_desc desc;
+ unsigned int res;
+};
+
+static void write_test_result(unsigned int res, struct xfrm_desc *d)
+{
+ struct test_result tr = {};
+ ssize_t ret;
+
+ tr.desc = *d;
+ tr.res = res;
+
+ ret = write(results_fd[1], &tr, sizeof(tr));
+ if (ret != sizeof(tr))
+ pr_err("Failed to write the result in pipe %zd", ret);
+}
+
+static void write_msg(int fd, struct test_desc *msg, bool exit_of_fail)
+{
+ ssize_t bytes = write(fd, msg, sizeof(*msg));
+
+ /* Make sure that write/read is atomic to a pipe */
+ BUILD_BUG_ON(sizeof(struct test_desc) > PIPE_BUF);
+
+ if (bytes < 0) {
+ pr_err("write()");
+ if (exit_of_fail)
+ exit(KSFT_FAIL);
+ }
+ if (bytes != sizeof(*msg)) {
+ pr_err("sent part of the message %zd/%zu", bytes, sizeof(*msg));
+ if (exit_of_fail)
+ exit(KSFT_FAIL);
+ }
+}
+
+static void read_msg(int fd, struct test_desc *msg, bool exit_of_fail)
+{
+ ssize_t bytes = read(fd, msg, sizeof(*msg));
+
+ if (bytes < 0) {
+ pr_err("read()");
+ if (exit_of_fail)
+ exit(KSFT_FAIL);
+ }
+ if (bytes != sizeof(*msg)) {
+ pr_err("got incomplete message %zd/%zu", bytes, sizeof(*msg));
+ if (exit_of_fail)
+ exit(KSFT_FAIL);
+ }
+}
+
+static int udp_ping_init(struct in_addr listen_ip, unsigned int u_timeout,
+ unsigned int *server_port, int sock[2])
+{
+ struct sockaddr_in server;
+ struct timeval t = { .tv_sec = 0, .tv_usec = u_timeout };
+ socklen_t s_len = sizeof(server);
+
+ sock[0] = socket(AF_INET, SOCK_DGRAM, 0);
+ if (sock[0] < 0) {
+ pr_err("socket()");
+ return -1;
+ }
+
+ server.sin_family = AF_INET;
+ server.sin_port = 0;
+ memcpy(&server.sin_addr.s_addr, &listen_ip, sizeof(struct in_addr));
+
+ if (bind(sock[0], (struct sockaddr *)&server, s_len)) {
+ pr_err("bind()");
+ goto err_close_server;
+ }
+
+ if (getsockname(sock[0], (struct sockaddr *)&server, &s_len)) {
+ pr_err("getsockname()");
+ goto err_close_server;
+ }
+
+ *server_port = ntohs(server.sin_port);
+
+ if (setsockopt(sock[0], SOL_SOCKET, SO_RCVTIMEO, (const char *)&t, sizeof t)) {
+ pr_err("setsockopt()");
+ goto err_close_server;
+ }
+
+ sock[1] = socket(AF_INET, SOCK_DGRAM, 0);
+ if (sock[1] < 0) {
+ pr_err("socket()");
+ goto err_close_server;
+ }
+
+ return 0;
+
+err_close_server:
+ close(sock[0]);
+ return -1;
+}
+
+static int udp_ping_send(int sock[2], in_addr_t dest_ip, unsigned int port,
+ char *buf, size_t buf_len)
+{
+ struct sockaddr_in server;
+ const struct sockaddr *dest_addr = (struct sockaddr *)&server;
+ char *sock_buf[buf_len];
+ ssize_t r_bytes, s_bytes;
+
+ server.sin_family = AF_INET;
+ server.sin_port = htons(port);
+ server.sin_addr.s_addr = dest_ip;
+
+ s_bytes = sendto(sock[1], buf, buf_len, 0, dest_addr, sizeof(server));
+ if (s_bytes < 0) {
+ pr_err("sendto()");
+ return -1;
+ } else if (s_bytes != buf_len) {
+ printk("send part of the message: %zd/%zu", s_bytes, sizeof(server));
+ return -1;
+ }
+
+ r_bytes = recv(sock[0], sock_buf, buf_len, 0);
+ if (r_bytes < 0) {
+ if (errno != EAGAIN)
+ pr_err("recv()");
+ return -1;
+ } else if (r_bytes == 0) { /* EOF */
+ printk("EOF on reply to ping");
+ return -1;
+ } else if (r_bytes != buf_len || memcmp(buf, sock_buf, buf_len)) {
+ printk("ping reply packet is corrupted %zd/%zu", r_bytes, buf_len);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int udp_ping_reply(int sock[2], in_addr_t dest_ip, unsigned int port,
+ char *buf, size_t buf_len)
+{
+ struct sockaddr_in server;
+ const struct sockaddr *dest_addr = (struct sockaddr *)&server;
+ char *sock_buf[buf_len];
+ ssize_t r_bytes, s_bytes;
+
+ server.sin_family = AF_INET;
+ server.sin_port = htons(port);
+ server.sin_addr.s_addr = dest_ip;
+
+ r_bytes = recv(sock[0], sock_buf, buf_len, 0);
+ if (r_bytes < 0) {
+ if (errno != EAGAIN)
+ pr_err("recv()");
+ return -1;
+ }
+ if (r_bytes == 0) { /* EOF */
+ printk("EOF on reply to ping");
+ return -1;
+ }
+ if (r_bytes != buf_len || memcmp(buf, sock_buf, buf_len)) {
+ printk("ping reply packet is corrupted %zd/%zu", r_bytes, buf_len);
+ return -1;
+ }
+
+ s_bytes = sendto(sock[1], buf, buf_len, 0, dest_addr, sizeof(server));
+ if (s_bytes < 0) {
+ pr_err("sendto()");
+ return -1;
+ } else if (s_bytes != buf_len) {
+ printk("send part of the message: %zd/%zu", s_bytes, sizeof(server));
+ return -1;
+ }
+
+ return 0;
+}
+
+typedef int (*ping_f)(int sock[2], in_addr_t dest_ip, unsigned int port,
+ char *buf, size_t buf_len);
+static int do_ping(int cmd_fd, char *buf, size_t buf_len, struct in_addr from,
+ bool init_side, int d_port, in_addr_t to, ping_f func)
+{
+ struct test_desc msg;
+ unsigned int s_port, i, ping_succeeded = 0;
+ int ping_sock[2];
+ char to_str[IPV4_STR_SZ] = {}, from_str[IPV4_STR_SZ] = {};
+
+ if (udp_ping_init(from, ping_timeout, &s_port, ping_sock)) {
+ printk("Failed to init ping");
+ return -1;
+ }
+
+ memset(&msg, 0, sizeof(msg));
+ msg.type = MSG_PING;
+ msg.body.ping.port = s_port;
+ memcpy(&msg.body.ping.reply_ip, &from, sizeof(from));
+
+ write_msg(cmd_fd, &msg, 0);
+ if (init_side) {
+ /* The other end sends ip to ping */
+ read_msg(cmd_fd, &msg, 0);
+ if (msg.type != MSG_PING)
+ return -1;
+ to = msg.body.ping.reply_ip;
+ d_port = msg.body.ping.port;
+ }
+
+ for (i = 0; i < ping_count ; i++) {
+ struct timespec sleep_time = {
+ .tv_sec = 0,
+ .tv_nsec = ping_delay_nsec,
+ };
+
+ ping_succeeded += !func(ping_sock, to, d_port, buf, page_size);
+ nanosleep(&sleep_time, 0);
+ }
+
+ close(ping_sock[0]);
+ close(ping_sock[1]);
+
+ strncpy(to_str, inet_ntoa(*(struct in_addr *)&to), IPV4_STR_SZ - 1);
+ strncpy(from_str, inet_ntoa(from), IPV4_STR_SZ - 1);
+
+ if (ping_succeeded < ping_success) {
+ printk("ping (%s) %s->%s failed %u/%u times",
+ init_side ? "send" : "reply", from_str, to_str,
+ ping_count - ping_succeeded, ping_count);
+ return -1;
+ }
+
+#ifdef DEBUG
+ printk("ping (%s) %s->%s succeeded %u/%u times",
+ init_side ? "send" : "reply", from_str, to_str,
+ ping_succeeded, ping_count);
+#endif
+
+ return 0;
+}
+
+static int xfrm_fill_key(char *name, char *buf,
+ size_t buf_len, unsigned int *key_len)
+{
+ /* TODO: use set/map instead */
+ if (strncmp(name, "digest_null", ALGO_LEN) == 0)
+ *key_len = 0;
+ else if (strncmp(name, "ecb(cipher_null)", ALGO_LEN) == 0)
+ *key_len = 0;
+ else if (strncmp(name, "cbc(des)", ALGO_LEN) == 0)
+ *key_len = 64;
+ else if (strncmp(name, "hmac(md5)", ALGO_LEN) == 0)
+ *key_len = 128;
+ else if (strncmp(name, "cmac(aes)", ALGO_LEN) == 0)
+ *key_len = 128;
+ else if (strncmp(name, "xcbc(aes)", ALGO_LEN) == 0)
+ *key_len = 128;
+ else if (strncmp(name, "cbc(cast5)", ALGO_LEN) == 0)
+ *key_len = 128;
+ else if (strncmp(name, "cbc(serpent)", ALGO_LEN) == 0)
+ *key_len = 128;
+ else if (strncmp(name, "hmac(sha1)", ALGO_LEN) == 0)
+ *key_len = 160;
+ else if (strncmp(name, "hmac(rmd160)", ALGO_LEN) == 0)
+ *key_len = 160;
+ else if (strncmp(name, "cbc(des3_ede)", ALGO_LEN) == 0)
+ *key_len = 192;
+ else if (strncmp(name, "hmac(sha256)", ALGO_LEN) == 0)
+ *key_len = 256;
+ else if (strncmp(name, "cbc(aes)", ALGO_LEN) == 0)
+ *key_len = 256;
+ else if (strncmp(name, "cbc(camellia)", ALGO_LEN) == 0)
+ *key_len = 256;
+ else if (strncmp(name, "cbc(twofish)", ALGO_LEN) == 0)
+ *key_len = 256;
+ else if (strncmp(name, "rfc3686(ctr(aes))", ALGO_LEN) == 0)
+ *key_len = 288;
+ else if (strncmp(name, "hmac(sha384)", ALGO_LEN) == 0)
+ *key_len = 384;
+ else if (strncmp(name, "cbc(blowfish)", ALGO_LEN) == 0)
+ *key_len = 448;
+ else if (strncmp(name, "hmac(sha512)", ALGO_LEN) == 0)
+ *key_len = 512;
+ else if (strncmp(name, "rfc4106(gcm(aes))-128", ALGO_LEN) == 0)
+ *key_len = 160;
+ else if (strncmp(name, "rfc4543(gcm(aes))-128", ALGO_LEN) == 0)
+ *key_len = 160;
+ else if (strncmp(name, "rfc4309(ccm(aes))-128", ALGO_LEN) == 0)
+ *key_len = 152;
+ else if (strncmp(name, "rfc4106(gcm(aes))-192", ALGO_LEN) == 0)
+ *key_len = 224;
+ else if (strncmp(name, "rfc4543(gcm(aes))-192", ALGO_LEN) == 0)
+ *key_len = 224;
+ else if (strncmp(name, "rfc4309(ccm(aes))-192", ALGO_LEN) == 0)
+ *key_len = 216;
+ else if (strncmp(name, "rfc4106(gcm(aes))-256", ALGO_LEN) == 0)
+ *key_len = 288;
+ else if (strncmp(name, "rfc4543(gcm(aes))-256", ALGO_LEN) == 0)
+ *key_len = 288;
+ else if (strncmp(name, "rfc4309(ccm(aes))-256", ALGO_LEN) == 0)
+ *key_len = 280;
+ else if (strncmp(name, "rfc7539(chacha20,poly1305)-128", ALGO_LEN) == 0)
+ *key_len = 0;
+
+ if (*key_len > buf_len) {
+ printk("Can't pack a key - too big for buffer");
+ return -1;
+ }
+
+ randomize_buffer(buf, *key_len);
+
+ return 0;
+}
+
+static int xfrm_state_pack_algo(struct nlmsghdr *nh, size_t req_sz,
+ struct xfrm_desc *desc)
+{
+ struct {
+ union {
+ struct xfrm_algo alg;
+ struct xfrm_algo_aead aead;
+ struct xfrm_algo_auth auth;
+ } u;
+ char buf[XFRM_ALGO_KEY_BUF_SIZE];
+ } alg = {};
+ size_t alen, elen, clen, aelen;
+ unsigned short type;
+
+ alen = strlen(desc->a_algo);
+ elen = strlen(desc->e_algo);
+ clen = strlen(desc->c_algo);
+ aelen = strlen(desc->ae_algo);
+
+ /* Verify desc */
+ switch (desc->proto) {
+ case IPPROTO_AH:
+ if (!alen || elen || clen || aelen) {
+ printk("BUG: buggy ah desc");
+ return -1;
+ }
+ strncpy(alg.u.alg.alg_name, desc->a_algo, ALGO_LEN - 1);
+ if (xfrm_fill_key(desc->a_algo, alg.u.alg.alg_key,
+ sizeof(alg.buf), &alg.u.alg.alg_key_len))
+ return -1;
+ type = XFRMA_ALG_AUTH;
+ break;
+ case IPPROTO_COMP:
+ if (!clen || elen || alen || aelen) {
+ printk("BUG: buggy comp desc");
+ return -1;
+ }
+ strncpy(alg.u.alg.alg_name, desc->c_algo, ALGO_LEN - 1);
+ if (xfrm_fill_key(desc->c_algo, alg.u.alg.alg_key,
+ sizeof(alg.buf), &alg.u.alg.alg_key_len))
+ return -1;
+ type = XFRMA_ALG_COMP;
+ break;
+ case IPPROTO_ESP:
+ if (!((alen && elen) ^ aelen) || clen) {
+ printk("BUG: buggy esp desc");
+ return -1;
+ }
+ if (aelen) {
+ alg.u.aead.alg_icv_len = desc->icv_len;
+ strncpy(alg.u.aead.alg_name, desc->ae_algo, ALGO_LEN - 1);
+ if (xfrm_fill_key(desc->ae_algo, alg.u.aead.alg_key,
+ sizeof(alg.buf), &alg.u.aead.alg_key_len))
+ return -1;
+ type = XFRMA_ALG_AEAD;
+ } else {
+
+ strncpy(alg.u.alg.alg_name, desc->e_algo, ALGO_LEN - 1);
+ type = XFRMA_ALG_CRYPT;
+ if (xfrm_fill_key(desc->e_algo, alg.u.alg.alg_key,
+ sizeof(alg.buf), &alg.u.alg.alg_key_len))
+ return -1;
+ if (rtattr_pack(nh, req_sz, type, &alg, sizeof(alg)))
+ return -1;
+
+ strncpy(alg.u.alg.alg_name, desc->a_algo, ALGO_LEN);
+ type = XFRMA_ALG_AUTH;
+ if (xfrm_fill_key(desc->a_algo, alg.u.alg.alg_key,
+ sizeof(alg.buf), &alg.u.alg.alg_key_len))
+ return -1;
+ }
+ break;
+ default:
+ printk("BUG: unknown proto in desc");
+ return -1;
+ }
+
+ if (rtattr_pack(nh, req_sz, type, &alg, sizeof(alg)))
+ return -1;
+
+ return 0;
+}
+
+static inline uint32_t gen_spi(struct in_addr src)
+{
+ return htonl(inet_lnaof(src));
+}
+
+static int xfrm_state_add(int xfrm_sock, uint32_t seq, uint32_t spi,
+ struct in_addr src, struct in_addr dst,
+ struct xfrm_desc *desc)
+{
+ struct {
+ struct nlmsghdr nh;
+ struct xfrm_usersa_info info;
+ char attrbuf[MAX_PAYLOAD];
+ } req;
+
+ memset(&req, 0, sizeof(req));
+ req.nh.nlmsg_len = NLMSG_LENGTH(sizeof(req.info));
+ req.nh.nlmsg_type = XFRM_MSG_NEWSA;
+ req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
+ req.nh.nlmsg_seq = seq;
+
+ /* Fill selector. */
+ memcpy(&req.info.sel.daddr, &dst, sizeof(dst));
+ memcpy(&req.info.sel.saddr, &src, sizeof(src));
+ req.info.sel.family = AF_INET;
+ req.info.sel.prefixlen_d = PREFIX_LEN;
+ req.info.sel.prefixlen_s = PREFIX_LEN;
+
+ /* Fill id */
+ memcpy(&req.info.id.daddr, &dst, sizeof(dst));
+ /* Note: zero-spi cannot be deleted */
+ req.info.id.spi = spi;
+ req.info.id.proto = desc->proto;
+
+ memcpy(&req.info.saddr, &src, sizeof(src));
+
+ /* Fill lifteme_cfg */
+ req.info.lft.soft_byte_limit = XFRM_INF;
+ req.info.lft.hard_byte_limit = XFRM_INF;
+ req.info.lft.soft_packet_limit = XFRM_INF;
+ req.info.lft.hard_packet_limit = XFRM_INF;
+
+ req.info.family = AF_INET;
+ req.info.mode = XFRM_MODE_TUNNEL;
+
+ if (xfrm_state_pack_algo(&req.nh, sizeof(req), desc))
+ return -1;
+
+ if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+ pr_err("send()");
+ return -1;
+ }
+
+ return netlink_check_answer(xfrm_sock);
+}
+
+static bool xfrm_usersa_found(struct xfrm_usersa_info *info, uint32_t spi,
+ struct in_addr src, struct in_addr dst,
+ struct xfrm_desc *desc)
+{
+ if (memcmp(&info->sel.daddr, &dst, sizeof(dst)))
+ return false;
+
+ if (memcmp(&info->sel.saddr, &src, sizeof(src)))
+ return false;
+
+ if (info->sel.family != AF_INET ||
+ info->sel.prefixlen_d != PREFIX_LEN ||
+ info->sel.prefixlen_s != PREFIX_LEN)
+ return false;
+
+ if (info->id.spi != spi || info->id.proto != desc->proto)
+ return false;
+
+ if (memcmp(&info->id.daddr, &dst, sizeof(dst)))
+ return false;
+
+ if (memcmp(&info->saddr, &src, sizeof(src)))
+ return false;
+
+ if (info->lft.soft_byte_limit != XFRM_INF ||
+ info->lft.hard_byte_limit != XFRM_INF ||
+ info->lft.soft_packet_limit != XFRM_INF ||
+ info->lft.hard_packet_limit != XFRM_INF)
+ return false;
+
+ if (info->family != AF_INET || info->mode != XFRM_MODE_TUNNEL)
+ return false;
+
+ /* XXX: check xfrm algo, see xfrm_state_pack_algo(). */
+
+ return true;
+}
+
+static int xfrm_state_check(int xfrm_sock, uint32_t seq, uint32_t spi,
+ struct in_addr src, struct in_addr dst,
+ struct xfrm_desc *desc)
+{
+ struct {
+ struct nlmsghdr nh;
+ char attrbuf[MAX_PAYLOAD];
+ } req;
+ struct {
+ struct nlmsghdr nh;
+ union {
+ struct xfrm_usersa_info info;
+ int error;
+ };
+ char attrbuf[MAX_PAYLOAD];
+ } answer;
+ struct xfrm_address_filter filter = {};
+ bool found = false;
+
+
+ memset(&req, 0, sizeof(req));
+ req.nh.nlmsg_len = NLMSG_LENGTH(0);
+ req.nh.nlmsg_type = XFRM_MSG_GETSA;
+ req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
+ req.nh.nlmsg_seq = seq;
+
+ /*
+ * Add dump filter by source address as there may be other tunnels
+ * in this netns (if tests run in parallel).
+ */
+ filter.family = AF_INET;
+ filter.splen = 0x1f; /* 0xffffffff mask see addr_match() */
+ memcpy(&filter.saddr, &src, sizeof(src));
+ if (rtattr_pack(&req.nh, sizeof(req), XFRMA_ADDRESS_FILTER,
+ &filter, sizeof(filter)))
+ return -1;
+
+ if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+ pr_err("send()");
+ return -1;
+ }
+
+ while (1) {
+ if (recv(xfrm_sock, &answer, sizeof(answer), 0) < 0) {
+ pr_err("recv()");
+ return -1;
+ }
+ if (answer.nh.nlmsg_type == NLMSG_ERROR) {
+ printk("NLMSG_ERROR: %d: %s",
+ answer.error, strerror(-answer.error));
+ return -1;
+ } else if (answer.nh.nlmsg_type == NLMSG_DONE) {
+ if (found)
+ return 0;
+ printk("didn't find allocated xfrm state in dump");
+ return -1;
+ } else if (answer.nh.nlmsg_type == XFRM_MSG_NEWSA) {
+ if (xfrm_usersa_found(&answer.info, spi, src, dst, desc))
+ found = true;
+ }
+ }
+}
+
+static int xfrm_set(int xfrm_sock, uint32_t *seq,
+ struct in_addr src, struct in_addr dst,
+ struct in_addr tunsrc, struct in_addr tundst,
+ struct xfrm_desc *desc)
+{
+ int err;
+
+ err = xfrm_state_add(xfrm_sock, (*seq)++, gen_spi(src), src, dst, desc);
+ if (err) {
+ printk("Failed to add xfrm state");
+ return -1;
+ }
+
+ err = xfrm_state_add(xfrm_sock, (*seq)++, gen_spi(src), dst, src, desc);
+ if (err) {
+ printk("Failed to add xfrm state");
+ return -1;
+ }
+
+ /* Check dumps for XFRM_MSG_GETSA */
+ err = xfrm_state_check(xfrm_sock, (*seq)++, gen_spi(src), src, dst, desc);
+ err |= xfrm_state_check(xfrm_sock, (*seq)++, gen_spi(src), dst, src, desc);
+ if (err) {
+ printk("Failed to check xfrm state");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int xfrm_policy_add(int xfrm_sock, uint32_t seq, uint32_t spi,
+ struct in_addr src, struct in_addr dst, uint8_t dir,
+ struct in_addr tunsrc, struct in_addr tundst, uint8_t proto)
+{
+ struct {
+ struct nlmsghdr nh;
+ struct xfrm_userpolicy_info info;
+ char attrbuf[MAX_PAYLOAD];
+ } req;
+ struct xfrm_user_tmpl tmpl;
+
+ memset(&req, 0, sizeof(req));
+ memset(&tmpl, 0, sizeof(tmpl));
+ req.nh.nlmsg_len = NLMSG_LENGTH(sizeof(req.info));
+ req.nh.nlmsg_type = XFRM_MSG_NEWPOLICY;
+ req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
+ req.nh.nlmsg_seq = seq;
+
+ /* Fill selector. */
+ memcpy(&req.info.sel.daddr, &dst, sizeof(tundst));
+ memcpy(&req.info.sel.saddr, &src, sizeof(tunsrc));
+ req.info.sel.family = AF_INET;
+ req.info.sel.prefixlen_d = PREFIX_LEN;
+ req.info.sel.prefixlen_s = PREFIX_LEN;
+
+ /* Fill lifteme_cfg */
+ req.info.lft.soft_byte_limit = XFRM_INF;
+ req.info.lft.hard_byte_limit = XFRM_INF;
+ req.info.lft.soft_packet_limit = XFRM_INF;
+ req.info.lft.hard_packet_limit = XFRM_INF;
+
+ req.info.dir = dir;
+
+ /* Fill tmpl */
+ memcpy(&tmpl.id.daddr, &dst, sizeof(dst));
+ /* Note: zero-spi cannot be deleted */
+ tmpl.id.spi = spi;
+ tmpl.id.proto = proto;
+ tmpl.family = AF_INET;
+ memcpy(&tmpl.saddr, &src, sizeof(src));
+ tmpl.mode = XFRM_MODE_TUNNEL;
+ tmpl.aalgos = (~(uint32_t)0);
+ tmpl.ealgos = (~(uint32_t)0);
+ tmpl.calgos = (~(uint32_t)0);
+
+ if (rtattr_pack(&req.nh, sizeof(req), XFRMA_TMPL, &tmpl, sizeof(tmpl)))
+ return -1;
+
+ if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+ pr_err("send()");
+ return -1;
+ }
+
+ return netlink_check_answer(xfrm_sock);
+}
+
+static int xfrm_prepare(int xfrm_sock, uint32_t *seq,
+ struct in_addr src, struct in_addr dst,
+ struct in_addr tunsrc, struct in_addr tundst, uint8_t proto)
+{
+ if (xfrm_policy_add(xfrm_sock, (*seq)++, gen_spi(src), src, dst,
+ XFRM_POLICY_OUT, tunsrc, tundst, proto)) {
+ printk("Failed to add xfrm policy");
+ return -1;
+ }
+
+ if (xfrm_policy_add(xfrm_sock, (*seq)++, gen_spi(src), dst, src,
+ XFRM_POLICY_IN, tunsrc, tundst, proto)) {
+ printk("Failed to add xfrm policy");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int xfrm_policy_del(int xfrm_sock, uint32_t seq,
+ struct in_addr src, struct in_addr dst, uint8_t dir,
+ struct in_addr tunsrc, struct in_addr tundst)
+{
+ struct {
+ struct nlmsghdr nh;
+ struct xfrm_userpolicy_id id;
+ char attrbuf[MAX_PAYLOAD];
+ } req;
+
+ memset(&req, 0, sizeof(req));
+ req.nh.nlmsg_len = NLMSG_LENGTH(sizeof(req.id));
+ req.nh.nlmsg_type = XFRM_MSG_DELPOLICY;
+ req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
+ req.nh.nlmsg_seq = seq;
+
+ /* Fill id */
+ memcpy(&req.id.sel.daddr, &dst, sizeof(tundst));
+ memcpy(&req.id.sel.saddr, &src, sizeof(tunsrc));
+ req.id.sel.family = AF_INET;
+ req.id.sel.prefixlen_d = PREFIX_LEN;
+ req.id.sel.prefixlen_s = PREFIX_LEN;
+ req.id.dir = dir;
+
+ if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+ pr_err("send()");
+ return -1;
+ }
+
+ return netlink_check_answer(xfrm_sock);
+}
+
+static int xfrm_cleanup(int xfrm_sock, uint32_t *seq,
+ struct in_addr src, struct in_addr dst,
+ struct in_addr tunsrc, struct in_addr tundst)
+{
+ if (xfrm_policy_del(xfrm_sock, (*seq)++, src, dst,
+ XFRM_POLICY_OUT, tunsrc, tundst)) {
+ printk("Failed to add xfrm policy");
+ return -1;
+ }
+
+ if (xfrm_policy_del(xfrm_sock, (*seq)++, dst, src,
+ XFRM_POLICY_IN, tunsrc, tundst)) {
+ printk("Failed to add xfrm policy");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int xfrm_state_del(int xfrm_sock, uint32_t seq, uint32_t spi,
+ struct in_addr src, struct in_addr dst, uint8_t proto)
+{
+ struct {
+ struct nlmsghdr nh;
+ struct xfrm_usersa_id id;
+ char attrbuf[MAX_PAYLOAD];
+ } req;
+ xfrm_address_t saddr = {};
+
+ memset(&req, 0, sizeof(req));
+ req.nh.nlmsg_len = NLMSG_LENGTH(sizeof(req.id));
+ req.nh.nlmsg_type = XFRM_MSG_DELSA;
+ req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
+ req.nh.nlmsg_seq = seq;
+
+ memcpy(&req.id.daddr, &dst, sizeof(dst));
+ req.id.family = AF_INET;
+ req.id.proto = proto;
+ /* Note: zero-spi cannot be deleted */
+ req.id.spi = spi;
+
+ memcpy(&saddr, &src, sizeof(src));
+ if (rtattr_pack(&req.nh, sizeof(req), XFRMA_SRCADDR, &saddr, sizeof(saddr)))
+ return -1;
+
+ if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+ pr_err("send()");
+ return -1;
+ }
+
+ return netlink_check_answer(xfrm_sock);
+}
+
+static int xfrm_delete(int xfrm_sock, uint32_t *seq,
+ struct in_addr src, struct in_addr dst,
+ struct in_addr tunsrc, struct in_addr tundst, uint8_t proto)
+{
+ if (xfrm_state_del(xfrm_sock, (*seq)++, gen_spi(src), src, dst, proto)) {
+ printk("Failed to remove xfrm state");
+ return -1;
+ }
+
+ if (xfrm_state_del(xfrm_sock, (*seq)++, gen_spi(src), dst, src, proto)) {
+ printk("Failed to remove xfrm state");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int xfrm_state_allocspi(int xfrm_sock, uint32_t *seq,
+ uint32_t spi, uint8_t proto)
+{
+ struct {
+ struct nlmsghdr nh;
+ struct xfrm_userspi_info spi;
+ } req;
+ struct {
+ struct nlmsghdr nh;
+ union {
+ struct xfrm_usersa_info info;
+ int error;
+ };
+ } answer;
+
+ memset(&req, 0, sizeof(req));
+ req.nh.nlmsg_len = NLMSG_LENGTH(sizeof(req.spi));
+ req.nh.nlmsg_type = XFRM_MSG_ALLOCSPI;
+ req.nh.nlmsg_flags = NLM_F_REQUEST;
+ req.nh.nlmsg_seq = (*seq)++;
+
+ req.spi.info.family = AF_INET;
+ req.spi.min = spi;
+ req.spi.max = spi;
+ req.spi.info.id.proto = proto;
+
+ if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+ pr_err("send()");
+ return KSFT_FAIL;
+ }
+
+ if (recv(xfrm_sock, &answer, sizeof(answer), 0) < 0) {
+ pr_err("recv()");
+ return KSFT_FAIL;
+ } else if (answer.nh.nlmsg_type == XFRM_MSG_NEWSA) {
+ uint32_t new_spi = htonl(answer.info.id.spi);
+
+ if (new_spi != spi) {
+ printk("allocated spi is different from requested: %#x != %#x",
+ new_spi, spi);
+ return KSFT_FAIL;
+ }
+ return KSFT_PASS;
+ } else if (answer.nh.nlmsg_type != NLMSG_ERROR) {
+ printk("expected NLMSG_ERROR, got %d", (int)answer.nh.nlmsg_type);
+ return KSFT_FAIL;
+ }
+
+ printk("NLMSG_ERROR: %d: %s", answer.error, strerror(-answer.error));
+ return (answer.error) ? KSFT_FAIL : KSFT_PASS;
+}
+
+static int netlink_sock_bind(int *sock, uint32_t *seq, int proto, uint32_t groups)
+{
+ struct sockaddr_nl snl = {};
+ socklen_t addr_len;
+ int ret = -1;
+
+ snl.nl_family = AF_NETLINK;
+ snl.nl_groups = groups;
+
+ if (netlink_sock(sock, seq, proto)) {
+ printk("Failed to open xfrm netlink socket");
+ return -1;
+ }
+
+ if (bind(*sock, (struct sockaddr *)&snl, sizeof(snl)) < 0) {
+ pr_err("bind()");
+ goto out_close;
+ }
+
+ addr_len = sizeof(snl);
+ if (getsockname(*sock, (struct sockaddr *)&snl, &addr_len) < 0) {
+ pr_err("getsockname()");
+ goto out_close;
+ }
+ if (addr_len != sizeof(snl)) {
+ printk("Wrong address length %d", addr_len);
+ goto out_close;
+ }
+ if (snl.nl_family != AF_NETLINK) {
+ printk("Wrong address family %d", snl.nl_family);
+ goto out_close;
+ }
+ return 0;
+
+out_close:
+ close(*sock);
+ return ret;
+}
+
+static int xfrm_monitor_acquire(int xfrm_sock, uint32_t *seq, unsigned int nr)
+{
+ struct {
+ struct nlmsghdr nh;
+ union {
+ struct xfrm_user_acquire acq;
+ int error;
+ };
+ char attrbuf[MAX_PAYLOAD];
+ } req;
+ struct xfrm_user_tmpl xfrm_tmpl = {};
+ int xfrm_listen = -1, ret = KSFT_FAIL;
+ uint32_t seq_listen;
+
+ if (netlink_sock_bind(&xfrm_listen, &seq_listen, NETLINK_XFRM, XFRMNLGRP_ACQUIRE))
+ return KSFT_FAIL;
+
+ memset(&req, 0, sizeof(req));
+ req.nh.nlmsg_len = NLMSG_LENGTH(sizeof(req.acq));
+ req.nh.nlmsg_type = XFRM_MSG_ACQUIRE;
+ req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
+ req.nh.nlmsg_seq = (*seq)++;
+
+ req.acq.policy.sel.family = AF_INET;
+ req.acq.aalgos = 0xfeed;
+ req.acq.ealgos = 0xbaad;
+ req.acq.calgos = 0xbabe;
+
+ xfrm_tmpl.family = AF_INET;
+ xfrm_tmpl.id.proto = IPPROTO_ESP;
+ if (rtattr_pack(&req.nh, sizeof(req), XFRMA_TMPL, &xfrm_tmpl, sizeof(xfrm_tmpl)))
+ goto out_close;
+
+ if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+ pr_err("send()");
+ goto out_close;
+ }
+
+ if (recv(xfrm_sock, &req, sizeof(req), 0) < 0) {
+ pr_err("recv()");
+ goto out_close;
+ } else if (req.nh.nlmsg_type != NLMSG_ERROR) {
+ printk("expected NLMSG_ERROR, got %d", (int)req.nh.nlmsg_type);
+ goto out_close;
+ }
+
+ if (req.error) {
+ printk("NLMSG_ERROR: %d: %s", req.error, strerror(-req.error));
+ ret = req.error;
+ goto out_close;
+ }
+
+ if (recv(xfrm_listen, &req, sizeof(req), 0) < 0) {
+ pr_err("recv()");
+ goto out_close;
+ }
+
+ if (req.acq.aalgos != 0xfeed || req.acq.ealgos != 0xbaad
+ || req.acq.calgos != 0xbabe) {
+ printk("xfrm_user_acquire has changed %x %x %x",
+ req.acq.aalgos, req.acq.ealgos, req.acq.calgos);
+ goto out_close;
+ }
+
+ ret = KSFT_PASS;
+out_close:
+ close(xfrm_listen);
+ return ret;
+}
+
+static int xfrm_expire_state(int xfrm_sock, uint32_t *seq,
+ unsigned int nr, struct xfrm_desc *desc)
+{
+ struct {
+ struct nlmsghdr nh;
+ union {
+ struct xfrm_user_expire expire;
+ int error;
+ };
+ } req;
+ struct in_addr src, dst;
+ int xfrm_listen = -1, ret = KSFT_FAIL;
+ uint32_t seq_listen;
+
+ src = inet_makeaddr(INADDR_B, child_ip(nr));
+ dst = inet_makeaddr(INADDR_B, grchild_ip(nr));
+
+ if (xfrm_state_add(xfrm_sock, (*seq)++, gen_spi(src), src, dst, desc)) {
+ printk("Failed to add xfrm state");
+ return KSFT_FAIL;
+ }
+
+ if (netlink_sock_bind(&xfrm_listen, &seq_listen, NETLINK_XFRM, XFRMNLGRP_EXPIRE))
+ return KSFT_FAIL;
+
+ memset(&req, 0, sizeof(req));
+ req.nh.nlmsg_len = NLMSG_LENGTH(sizeof(req.expire));
+ req.nh.nlmsg_type = XFRM_MSG_EXPIRE;
+ req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
+ req.nh.nlmsg_seq = (*seq)++;
+
+ memcpy(&req.expire.state.id.daddr, &dst, sizeof(dst));
+ req.expire.state.id.spi = gen_spi(src);
+ req.expire.state.id.proto = desc->proto;
+ req.expire.state.family = AF_INET;
+ req.expire.hard = 0xff;
+
+ if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+ pr_err("send()");
+ goto out_close;
+ }
+
+ if (recv(xfrm_sock, &req, sizeof(req), 0) < 0) {
+ pr_err("recv()");
+ goto out_close;
+ } else if (req.nh.nlmsg_type != NLMSG_ERROR) {
+ printk("expected NLMSG_ERROR, got %d", (int)req.nh.nlmsg_type);
+ goto out_close;
+ }
+
+ if (req.error) {
+ printk("NLMSG_ERROR: %d: %s", req.error, strerror(-req.error));
+ ret = req.error;
+ goto out_close;
+ }
+
+ if (recv(xfrm_listen, &req, sizeof(req), 0) < 0) {
+ pr_err("recv()");
+ goto out_close;
+ }
+
+ if (req.expire.hard != 0x1) {
+ printk("expire.hard is not set: %x", req.expire.hard);
+ goto out_close;
+ }
+
+ ret = KSFT_PASS;
+out_close:
+ close(xfrm_listen);
+ return ret;
+}
+
+static int xfrm_expire_policy(int xfrm_sock, uint32_t *seq,
+ unsigned int nr, struct xfrm_desc *desc)
+{
+ struct {
+ struct nlmsghdr nh;
+ union {
+ struct xfrm_user_polexpire expire;
+ int error;
+ };
+ } req;
+ struct in_addr src, dst, tunsrc, tundst;
+ int xfrm_listen = -1, ret = KSFT_FAIL;
+ uint32_t seq_listen;
+
+ src = inet_makeaddr(INADDR_B, child_ip(nr));
+ dst = inet_makeaddr(INADDR_B, grchild_ip(nr));
+ tunsrc = inet_makeaddr(INADDR_A, child_ip(nr));
+ tundst = inet_makeaddr(INADDR_A, grchild_ip(nr));
+
+ if (xfrm_policy_add(xfrm_sock, (*seq)++, gen_spi(src), src, dst,
+ XFRM_POLICY_OUT, tunsrc, tundst, desc->proto)) {
+ printk("Failed to add xfrm policy");
+ return KSFT_FAIL;
+ }
+
+ if (netlink_sock_bind(&xfrm_listen, &seq_listen, NETLINK_XFRM, XFRMNLGRP_EXPIRE))
+ return KSFT_FAIL;
+
+ memset(&req, 0, sizeof(req));
+ req.nh.nlmsg_len = NLMSG_LENGTH(sizeof(req.expire));
+ req.nh.nlmsg_type = XFRM_MSG_POLEXPIRE;
+ req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
+ req.nh.nlmsg_seq = (*seq)++;
+
+ /* Fill selector. */
+ memcpy(&req.expire.pol.sel.daddr, &dst, sizeof(tundst));
+ memcpy(&req.expire.pol.sel.saddr, &src, sizeof(tunsrc));
+ req.expire.pol.sel.family = AF_INET;
+ req.expire.pol.sel.prefixlen_d = PREFIX_LEN;
+ req.expire.pol.sel.prefixlen_s = PREFIX_LEN;
+ req.expire.pol.dir = XFRM_POLICY_OUT;
+ req.expire.hard = 0xff;
+
+ if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+ pr_err("send()");
+ goto out_close;
+ }
+
+ if (recv(xfrm_sock, &req, sizeof(req), 0) < 0) {
+ pr_err("recv()");
+ goto out_close;
+ } else if (req.nh.nlmsg_type != NLMSG_ERROR) {
+ printk("expected NLMSG_ERROR, got %d", (int)req.nh.nlmsg_type);
+ goto out_close;
+ }
+
+ if (req.error) {
+ printk("NLMSG_ERROR: %d: %s", req.error, strerror(-req.error));
+ ret = req.error;
+ goto out_close;
+ }
+
+ if (recv(xfrm_listen, &req, sizeof(req), 0) < 0) {
+ pr_err("recv()");
+ goto out_close;
+ }
+
+ if (req.expire.hard != 0x1) {
+ printk("expire.hard is not set: %x", req.expire.hard);
+ goto out_close;
+ }
+
+ ret = KSFT_PASS;
+out_close:
+ close(xfrm_listen);
+ return ret;
+}
+
+static int child_serv(int xfrm_sock, uint32_t *seq,
+ unsigned int nr, int cmd_fd, void *buf, struct xfrm_desc *desc)
+{
+ struct in_addr src, dst, tunsrc, tundst;
+ struct test_desc msg;
+ int ret = KSFT_FAIL;
+
+ src = inet_makeaddr(INADDR_B, child_ip(nr));
+ dst = inet_makeaddr(INADDR_B, grchild_ip(nr));
+ tunsrc = inet_makeaddr(INADDR_A, child_ip(nr));
+ tundst = inet_makeaddr(INADDR_A, grchild_ip(nr));
+
+ /* UDP pinging without xfrm */
+ if (do_ping(cmd_fd, buf, page_size, src, true, 0, 0, udp_ping_send)) {
+ printk("ping failed before setting xfrm");
+ return KSFT_FAIL;
+ }
+
+ memset(&msg, 0, sizeof(msg));
+ msg.type = MSG_XFRM_PREPARE;
+ memcpy(&msg.body.xfrm_desc, desc, sizeof(*desc));
+ write_msg(cmd_fd, &msg, 1);
+
+ if (xfrm_prepare(xfrm_sock, seq, src, dst, tunsrc, tundst, desc->proto)) {
+ printk("failed to prepare xfrm");
+ goto cleanup;
+ }
+
+ memset(&msg, 0, sizeof(msg));
+ msg.type = MSG_XFRM_ADD;
+ memcpy(&msg.body.xfrm_desc, desc, sizeof(*desc));
+ write_msg(cmd_fd, &msg, 1);
+ if (xfrm_set(xfrm_sock, seq, src, dst, tunsrc, tundst, desc)) {
+ printk("failed to set xfrm");
+ goto delete;
+ }
+
+ /* UDP pinging with xfrm tunnel */
+ if (do_ping(cmd_fd, buf, page_size, tunsrc,
+ true, 0, 0, udp_ping_send)) {
+ printk("ping failed for xfrm");
+ goto delete;
+ }
+
+ ret = KSFT_PASS;
+delete:
+ /* xfrm delete */
+ memset(&msg, 0, sizeof(msg));
+ msg.type = MSG_XFRM_DEL;
+ memcpy(&msg.body.xfrm_desc, desc, sizeof(*desc));
+ write_msg(cmd_fd, &msg, 1);
+
+ if (xfrm_delete(xfrm_sock, seq, src, dst, tunsrc, tundst, desc->proto)) {
+ printk("failed ping to remove xfrm");
+ ret = KSFT_FAIL;
+ }
+
+cleanup:
+ memset(&msg, 0, sizeof(msg));
+ msg.type = MSG_XFRM_CLEANUP;
+ memcpy(&msg.body.xfrm_desc, desc, sizeof(*desc));
+ write_msg(cmd_fd, &msg, 1);
+ if (xfrm_cleanup(xfrm_sock, seq, src, dst, tunsrc, tundst)) {
+ printk("failed ping to cleanup xfrm");
+ ret = KSFT_FAIL;
+ }
+ return ret;
+}
+
+static int child_f(unsigned int nr, int test_desc_fd, int cmd_fd, void *buf)
+{
+ struct xfrm_desc desc;
+ struct test_desc msg;
+ int xfrm_sock = -1;
+ uint32_t seq;
+
+ if (switch_ns(nsfd_childa))
+ exit(KSFT_FAIL);
+
+ if (netlink_sock(&xfrm_sock, &seq, NETLINK_XFRM)) {
+ printk("Failed to open xfrm netlink socket");
+ exit(KSFT_FAIL);
+ }
+
+ /* Check that seq sock is ready, just for sure. */
+ memset(&msg, 0, sizeof(msg));
+ msg.type = MSG_ACK;
+ write_msg(cmd_fd, &msg, 1);
+ read_msg(cmd_fd, &msg, 1);
+ if (msg.type != MSG_ACK) {
+ printk("Ack failed");
+ exit(KSFT_FAIL);
+ }
+
+ for (;;) {
+ ssize_t received = read(test_desc_fd, &desc, sizeof(desc));
+ int ret;
+
+ if (received == 0) /* EOF */
+ break;
+
+ if (received != sizeof(desc)) {
+ pr_err("read() returned %zd", received);
+ exit(KSFT_FAIL);
+ }
+
+ switch (desc.type) {
+ case CREATE_TUNNEL:
+ ret = child_serv(xfrm_sock, &seq, nr,
+ cmd_fd, buf, &desc);
+ break;
+ case ALLOCATE_SPI:
+ ret = xfrm_state_allocspi(xfrm_sock, &seq,
+ -1, desc.proto);
+ break;
+ case MONITOR_ACQUIRE:
+ ret = xfrm_monitor_acquire(xfrm_sock, &seq, nr);
+ break;
+ case EXPIRE_STATE:
+ ret = xfrm_expire_state(xfrm_sock, &seq, nr, &desc);
+ break;
+ case EXPIRE_POLICY:
+ ret = xfrm_expire_policy(xfrm_sock, &seq, nr, &desc);
+ break;
+ default:
+ printk("Unknown desc type %d", desc.type);
+ exit(KSFT_FAIL);
+ }
+ write_test_result(ret, &desc);
+ }
+
+ close(xfrm_sock);
+
+ msg.type = MSG_EXIT;
+ write_msg(cmd_fd, &msg, 1);
+ exit(KSFT_PASS);
+}
+
+static void grand_child_serv(unsigned int nr, int cmd_fd, void *buf,
+ struct test_desc *msg, int xfrm_sock, uint32_t *seq)
+{
+ struct in_addr src, dst, tunsrc, tundst;
+ bool tun_reply;
+ struct xfrm_desc *desc = &msg->body.xfrm_desc;
+
+ src = inet_makeaddr(INADDR_B, grchild_ip(nr));
+ dst = inet_makeaddr(INADDR_B, child_ip(nr));
+ tunsrc = inet_makeaddr(INADDR_A, grchild_ip(nr));
+ tundst = inet_makeaddr(INADDR_A, child_ip(nr));
+
+ switch (msg->type) {
+ case MSG_EXIT:
+ exit(KSFT_PASS);
+ case MSG_ACK:
+ write_msg(cmd_fd, msg, 1);
+ break;
+ case MSG_PING:
+ tun_reply = memcmp(&dst, &msg->body.ping.reply_ip, sizeof(in_addr_t));
+ /* UDP pinging without xfrm */
+ if (do_ping(cmd_fd, buf, page_size, tun_reply ? tunsrc : src,
+ false, msg->body.ping.port,
+ msg->body.ping.reply_ip, udp_ping_reply)) {
+ printk("ping failed before setting xfrm");
+ }
+ break;
+ case MSG_XFRM_PREPARE:
+ if (xfrm_prepare(xfrm_sock, seq, src, dst, tunsrc, tundst,
+ desc->proto)) {
+ xfrm_cleanup(xfrm_sock, seq, src, dst, tunsrc, tundst);
+ printk("failed to prepare xfrm");
+ }
+ break;
+ case MSG_XFRM_ADD:
+ if (xfrm_set(xfrm_sock, seq, src, dst, tunsrc, tundst, desc)) {
+ xfrm_cleanup(xfrm_sock, seq, src, dst, tunsrc, tundst);
+ printk("failed to set xfrm");
+ }
+ break;
+ case MSG_XFRM_DEL:
+ if (xfrm_delete(xfrm_sock, seq, src, dst, tunsrc, tundst,
+ desc->proto)) {
+ xfrm_cleanup(xfrm_sock, seq, src, dst, tunsrc, tundst);
+ printk("failed to remove xfrm");
+ }
+ break;
+ case MSG_XFRM_CLEANUP:
+ if (xfrm_cleanup(xfrm_sock, seq, src, dst, tunsrc, tundst)) {
+ printk("failed to cleanup xfrm");
+ }
+ break;
+ default:
+ printk("got unknown msg type %d", msg->type);
+ };
+}
+
+static int grand_child_f(unsigned int nr, int cmd_fd, void *buf)
+{
+ struct test_desc msg;
+ int xfrm_sock = -1;
+ uint32_t seq;
+
+ if (switch_ns(nsfd_childb))
+ exit(KSFT_FAIL);
+
+ if (netlink_sock(&xfrm_sock, &seq, NETLINK_XFRM)) {
+ printk("Failed to open xfrm netlink socket");
+ exit(KSFT_FAIL);
+ }
+
+ do {
+ read_msg(cmd_fd, &msg, 1);
+ grand_child_serv(nr, cmd_fd, buf, &msg, xfrm_sock, &seq);
+ } while (1);
+
+ close(xfrm_sock);
+ exit(KSFT_FAIL);
+}
+
+static int start_child(unsigned int nr, char *veth, int test_desc_fd[2])
+{
+ int cmd_sock[2];
+ void *data_map;
+ pid_t child;
+
+ if (init_child(nsfd_childa, veth, child_ip(nr), grchild_ip(nr)))
+ return -1;
+
+ if (init_child(nsfd_childb, veth, grchild_ip(nr), child_ip(nr)))
+ return -1;
+
+ child = fork();
+ if (child < 0) {
+ pr_err("fork()");
+ return -1;
+ } else if (child) {
+ /* in parent - selftest */
+ return switch_ns(nsfd_parent);
+ }
+
+ if (close(test_desc_fd[1])) {
+ pr_err("close()");
+ return -1;
+ }
+
+ /* child */
+ data_map = mmap(0, page_size, PROT_READ | PROT_WRITE,
+ MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+ if (data_map == MAP_FAILED) {
+ pr_err("mmap()");
+ return -1;
+ }
+
+ randomize_buffer(data_map, page_size);
+
+ if (socketpair(PF_LOCAL, SOCK_SEQPACKET, 0, cmd_sock)) {
+ pr_err("socketpair()");
+ return -1;
+ }
+
+ child = fork();
+ if (child < 0) {
+ pr_err("fork()");
+ return -1;
+ } else if (child) {
+ if (close(cmd_sock[0])) {
+ pr_err("close()");
+ return -1;
+ }
+ return child_f(nr, test_desc_fd[0], cmd_sock[1], data_map);
+ }
+ if (close(cmd_sock[1])) {
+ pr_err("close()");
+ return -1;
+ }
+ return grand_child_f(nr, cmd_sock[0], data_map);
+}
+
+static void exit_usage(char **argv)
+{
+ printk("Usage: %s [nr_process]", argv[0]);
+ exit(KSFT_FAIL);
+}
+
+static int __write_desc(int test_desc_fd, struct xfrm_desc *desc)
+{
+ ssize_t ret;
+
+ ret = write(test_desc_fd, desc, sizeof(*desc));
+
+ if (ret == sizeof(*desc))
+ return 0;
+
+ pr_err("Writing test's desc failed %ld", ret);
+
+ return -1;
+}
+
+static int write_desc(int proto, int test_desc_fd,
+ char *a, char *e, char *c, char *ae)
+{
+ struct xfrm_desc desc = {};
+
+ desc.type = CREATE_TUNNEL;
+ desc.proto = proto;
+
+ if (a)
+ strncpy(desc.a_algo, a, ALGO_LEN - 1);
+ if (e)
+ strncpy(desc.e_algo, e, ALGO_LEN - 1);
+ if (c)
+ strncpy(desc.c_algo, c, ALGO_LEN - 1);
+ if (ae)
+ strncpy(desc.ae_algo, ae, ALGO_LEN - 1);
+
+ return __write_desc(test_desc_fd, &desc);
+}
+
+int proto_list[] = { IPPROTO_AH, IPPROTO_COMP, IPPROTO_ESP };
+char *ah_list[] = {
+ "digest_null", "hmac(md5)", "hmac(sha1)", "hmac(sha256)",
+ "hmac(sha384)", "hmac(sha512)", "hmac(rmd160)",
+ "xcbc(aes)", "cmac(aes)"
+};
+char *comp_list[] = {
+ "deflate",
+#if 0
+ /* No compression backend realization */
+ "lzs", "lzjh"
+#endif
+};
+char *e_list[] = {
+ "ecb(cipher_null)", "cbc(des)", "cbc(des3_ede)", "cbc(cast5)",
+ "cbc(blowfish)", "cbc(aes)", "cbc(serpent)", "cbc(camellia)",
+ "cbc(twofish)", "rfc3686(ctr(aes))"
+};
+char *ae_list[] = {
+#if 0
+ /* not implemented */
+ "rfc4106(gcm(aes))", "rfc4309(ccm(aes))", "rfc4543(gcm(aes))",
+ "rfc7539esp(chacha20,poly1305)"
+#endif
+};
+
+const unsigned int proto_plan = ARRAY_SIZE(ah_list) + ARRAY_SIZE(comp_list) \
+ + (ARRAY_SIZE(ah_list) * ARRAY_SIZE(e_list)) \
+ + ARRAY_SIZE(ae_list);
+
+static int write_proto_plan(int fd, int proto)
+{
+ unsigned int i;
+
+ switch (proto) {
+ case IPPROTO_AH:
+ for (i = 0; i < ARRAY_SIZE(ah_list); i++) {
+ if (write_desc(proto, fd, ah_list[i], 0, 0, 0))
+ return -1;
+ }
+ break;
+ case IPPROTO_COMP:
+ for (i = 0; i < ARRAY_SIZE(comp_list); i++) {
+ if (write_desc(proto, fd, 0, 0, comp_list[i], 0))
+ return -1;
+ }
+ break;
+ case IPPROTO_ESP:
+ for (i = 0; i < ARRAY_SIZE(ah_list); i++) {
+ int j;
+
+ for (j = 0; j < ARRAY_SIZE(e_list); j++) {
+ if (write_desc(proto, fd, ah_list[i],
+ e_list[j], 0, 0))
+ return -1;
+ }
+ }
+ for (i = 0; i < ARRAY_SIZE(ae_list); i++) {
+ if (write_desc(proto, fd, 0, 0, 0, ae_list[i]))
+ return -1;
+ }
+ break;
+ default:
+ printk("BUG: Specified unknown proto %d", proto);
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * Some structures in xfrm uapi header differ in size between
+ * 64-bit and 32-bit ABI:
+ *
+ * 32-bit UABI | 64-bit UABI
+ * -------------------------------------|-------------------------------------
+ * sizeof(xfrm_usersa_info) = 220 | sizeof(xfrm_usersa_info) = 224
+ * sizeof(xfrm_userpolicy_info) = 164 | sizeof(xfrm_userpolicy_info) = 168
+ * sizeof(xfrm_userspi_info) = 228 | sizeof(xfrm_userspi_info) = 232
+ * sizeof(xfrm_user_acquire) = 276 | sizeof(xfrm_user_acquire) = 280
+ * sizeof(xfrm_user_expire) = 224 | sizeof(xfrm_user_expire) = 232
+ * sizeof(xfrm_user_polexpire) = 168 | sizeof(xfrm_user_polexpire) = 176
+ *
+ * Check the affected by the UABI difference structures.
+ */
+const unsigned int compat_plan = 4;
+static int write_compat_struct_tests(int test_desc_fd)
+{
+ struct xfrm_desc desc = {};
+
+ desc.type = ALLOCATE_SPI;
+ desc.proto = IPPROTO_AH;
+ strncpy(desc.a_algo, ah_list[0], ALGO_LEN - 1);
+
+ if (__write_desc(test_desc_fd, &desc))
+ return -1;
+
+ desc.type = MONITOR_ACQUIRE;
+ if (__write_desc(test_desc_fd, &desc))
+ return -1;
+
+ desc.type = EXPIRE_STATE;
+ if (__write_desc(test_desc_fd, &desc))
+ return -1;
+
+ desc.type = EXPIRE_POLICY;
+ if (__write_desc(test_desc_fd, &desc))
+ return -1;
+
+ return 0;
+}
+
+static int write_test_plan(int test_desc_fd)
+{
+ unsigned int i;
+ pid_t child;
+
+ child = fork();
+ if (child < 0) {
+ pr_err("fork()");
+ return -1;
+ }
+ if (child) {
+ if (close(test_desc_fd))
+ printk("close(): %m");
+ return 0;
+ }
+
+ if (write_compat_struct_tests(test_desc_fd))
+ exit(KSFT_FAIL);
+
+ for (i = 0; i < ARRAY_SIZE(proto_list); i++) {
+ if (write_proto_plan(test_desc_fd, proto_list[i]))
+ exit(KSFT_FAIL);
+ }
+
+ exit(KSFT_PASS);
+}
+
+static int children_cleanup(void)
+{
+ unsigned ret = KSFT_PASS;
+
+ while (1) {
+ int status;
+ pid_t p = wait(&status);
+
+ if ((p < 0) && errno == ECHILD)
+ break;
+
+ if (p < 0) {
+ pr_err("wait()");
+ return KSFT_FAIL;
+ }
+
+ if (!WIFEXITED(status)) {
+ ret = KSFT_FAIL;
+ continue;
+ }
+
+ if (WEXITSTATUS(status) == KSFT_FAIL)
+ ret = KSFT_FAIL;
+ }
+
+ return ret;
+}
+
+typedef void (*print_res)(const char *, ...);
+
+static int check_results(void)
+{
+ struct test_result tr = {};
+ struct xfrm_desc *d = &tr.desc;
+ int ret = KSFT_PASS;
+
+ while (1) {
+ ssize_t received = read(results_fd[0], &tr, sizeof(tr));
+ print_res result;
+
+ if (received == 0) /* EOF */
+ break;
+
+ if (received != sizeof(tr)) {
+ pr_err("read() returned %zd", received);
+ return KSFT_FAIL;
+ }
+
+ switch (tr.res) {
+ case KSFT_PASS:
+ result = ksft_test_result_pass;
+ break;
+ case KSFT_FAIL:
+ default:
+ result = ksft_test_result_fail;
+ ret = KSFT_FAIL;
+ }
+
+ result(" %s: [%u, '%s', '%s', '%s', '%s', %u]\n",
+ desc_name[d->type], (unsigned int)d->proto, d->a_algo,
+ d->e_algo, d->c_algo, d->ae_algo, d->icv_len);
+ }
+
+ return ret;
+}
+
+int main(int argc, char **argv)
+{
+ long nr_process = 1;
+ int route_sock = -1, ret = KSFT_SKIP;
+ int test_desc_fd[2];
+ uint32_t route_seq;
+ unsigned int i;
+
+ if (argc > 2)
+ exit_usage(argv);
+
+ if (argc > 1) {
+ char *endptr;
+
+ errno = 0;
+ nr_process = strtol(argv[1], &endptr, 10);
+ if ((errno == ERANGE && (nr_process == LONG_MAX || nr_process == LONG_MIN))
+ || (errno != 0 && nr_process == 0)
+ || (endptr == argv[1]) || (*endptr != '\0')) {
+ printk("Failed to parse [nr_process]");
+ exit_usage(argv);
+ }
+
+ if (nr_process > MAX_PROCESSES || nr_process < 1) {
+ printk("nr_process should be between [1; %u]",
+ MAX_PROCESSES);
+ exit_usage(argv);
+ }
+ }
+
+ srand(time(NULL));
+ page_size = sysconf(_SC_PAGESIZE);
+ if (page_size < 1)
+ ksft_exit_skip("sysconf(): %m\n");
+
+ if (pipe2(test_desc_fd, O_DIRECT) < 0)
+ ksft_exit_skip("pipe(): %m\n");
+
+ if (pipe2(results_fd, O_DIRECT) < 0)
+ ksft_exit_skip("pipe(): %m\n");
+
+ if (init_namespaces())
+ ksft_exit_skip("Failed to create namespaces\n");
+
+ if (netlink_sock(&route_sock, &route_seq, NETLINK_ROUTE))
+ ksft_exit_skip("Failed to open netlink route socket\n");
+
+ for (i = 0; i < nr_process; i++) {
+ char veth[VETH_LEN];
+
+ snprintf(veth, VETH_LEN, VETH_FMT, i);
+
+ if (veth_add(route_sock, route_seq++, veth, nsfd_childa, veth, nsfd_childb)) {
+ close(route_sock);
+ ksft_exit_fail_msg("Failed to create veth device");
+ }
+
+ if (start_child(i, veth, test_desc_fd)) {
+ close(route_sock);
+ ksft_exit_fail_msg("Child %u failed to start", i);
+ }
+ }
+
+ if (close(route_sock) || close(test_desc_fd[0]) || close(results_fd[1]))
+ ksft_exit_fail_msg("close(): %m");
+
+ ksft_set_plan(proto_plan + compat_plan);
+
+ if (write_test_plan(test_desc_fd[1]))
+ ksft_exit_fail_msg("Failed to write test plan to pipe");
+
+ ret = check_results();
+
+ if (children_cleanup() == KSFT_FAIL)
+ exit(KSFT_FAIL);
+
+ exit(ret);
+}
diff --git a/tools/testing/selftests/net/ipv6_flowlabel.c b/tools/testing/selftests/net/ipv6_flowlabel.c
new file mode 100644
index 000000000..a7c413753
--- /dev/null
+++ b/tools/testing/selftests/net/ipv6_flowlabel.c
@@ -0,0 +1,229 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Test IPV6_FLOWINFO cmsg on send and recv */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <asm/byteorder.h>
+#include <error.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <linux/in6.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+/* uapi/glibc weirdness may leave this undefined */
+#ifndef IPV6_FLOWINFO
+#define IPV6_FLOWINFO 11
+#endif
+
+#ifndef IPV6_FLOWLABEL_MGR
+#define IPV6_FLOWLABEL_MGR 32
+#endif
+
+#define FLOWLABEL_WILDCARD ((uint32_t) -1)
+
+static const char cfg_data[] = "a";
+static uint32_t cfg_label = 1;
+
+static void do_send(int fd, bool with_flowlabel, uint32_t flowlabel)
+{
+ char control[CMSG_SPACE(sizeof(flowlabel))] = {0};
+ struct msghdr msg = {0};
+ struct iovec iov = {0};
+ int ret;
+
+ iov.iov_base = (char *)cfg_data;
+ iov.iov_len = sizeof(cfg_data);
+
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+
+ if (with_flowlabel) {
+ struct cmsghdr *cm;
+
+ cm = (void *)control;
+ cm->cmsg_len = CMSG_LEN(sizeof(flowlabel));
+ cm->cmsg_level = SOL_IPV6;
+ cm->cmsg_type = IPV6_FLOWINFO;
+ *(uint32_t *)CMSG_DATA(cm) = htonl(flowlabel);
+
+ msg.msg_control = control;
+ msg.msg_controllen = sizeof(control);
+ }
+
+ ret = sendmsg(fd, &msg, 0);
+ if (ret == -1)
+ error(1, errno, "send");
+
+ if (with_flowlabel)
+ fprintf(stderr, "sent with label %u\n", flowlabel);
+ else
+ fprintf(stderr, "sent without label\n");
+}
+
+static void do_recv(int fd, bool with_flowlabel, uint32_t expect)
+{
+ char control[CMSG_SPACE(sizeof(expect))];
+ char data[sizeof(cfg_data)];
+ struct msghdr msg = {0};
+ struct iovec iov = {0};
+ struct cmsghdr *cm;
+ uint32_t flowlabel;
+ int ret;
+
+ iov.iov_base = data;
+ iov.iov_len = sizeof(data);
+
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+
+ memset(control, 0, sizeof(control));
+ msg.msg_control = control;
+ msg.msg_controllen = sizeof(control);
+
+ ret = recvmsg(fd, &msg, 0);
+ if (ret == -1)
+ error(1, errno, "recv");
+ if (msg.msg_flags & (MSG_TRUNC | MSG_CTRUNC))
+ error(1, 0, "recv: truncated");
+ if (ret != sizeof(cfg_data))
+ error(1, 0, "recv: length mismatch");
+ if (memcmp(data, cfg_data, sizeof(data)))
+ error(1, 0, "recv: data mismatch");
+
+ cm = CMSG_FIRSTHDR(&msg);
+ if (with_flowlabel) {
+ if (!cm)
+ error(1, 0, "recv: missing cmsg");
+ if (CMSG_NXTHDR(&msg, cm))
+ error(1, 0, "recv: too many cmsg");
+ if (cm->cmsg_level != SOL_IPV6 ||
+ cm->cmsg_type != IPV6_FLOWINFO)
+ error(1, 0, "recv: unexpected cmsg level or type");
+
+ flowlabel = ntohl(*(uint32_t *)CMSG_DATA(cm));
+ fprintf(stderr, "recv with label %u\n", flowlabel);
+
+ if (expect != FLOWLABEL_WILDCARD && expect != flowlabel)
+ fprintf(stderr, "recv: incorrect flowlabel %u != %u\n",
+ flowlabel, expect);
+
+ } else {
+ fprintf(stderr, "recv without label\n");
+ }
+}
+
+static bool get_autoflowlabel_enabled(void)
+{
+ int fd, ret;
+ char val;
+
+ fd = open("/proc/sys/net/ipv6/auto_flowlabels", O_RDONLY);
+ if (fd == -1)
+ error(1, errno, "open sysctl");
+
+ ret = read(fd, &val, 1);
+ if (ret == -1)
+ error(1, errno, "read sysctl");
+ if (ret == 0)
+ error(1, 0, "read sysctl: 0");
+
+ if (close(fd))
+ error(1, errno, "close sysctl");
+
+ return val == '1';
+}
+
+static void flowlabel_get(int fd, uint32_t label, uint8_t share, uint16_t flags)
+{
+ struct in6_flowlabel_req req = {
+ .flr_action = IPV6_FL_A_GET,
+ .flr_label = htonl(label),
+ .flr_flags = flags,
+ .flr_share = share,
+ };
+
+ /* do not pass IPV6_ADDR_ANY or IPV6_ADDR_MAPPED */
+ req.flr_dst.s6_addr[0] = 0xfd;
+ req.flr_dst.s6_addr[15] = 0x1;
+
+ if (setsockopt(fd, SOL_IPV6, IPV6_FLOWLABEL_MGR, &req, sizeof(req)))
+ error(1, errno, "setsockopt flowlabel get");
+}
+
+static void parse_opts(int argc, char **argv)
+{
+ int c;
+
+ while ((c = getopt(argc, argv, "l:")) != -1) {
+ switch (c) {
+ case 'l':
+ cfg_label = strtoul(optarg, NULL, 0);
+ break;
+ default:
+ error(1, 0, "%s: parse error", argv[0]);
+ }
+ }
+}
+
+int main(int argc, char **argv)
+{
+ struct sockaddr_in6 addr = {
+ .sin6_family = AF_INET6,
+ .sin6_port = htons(8000),
+ .sin6_addr = IN6ADDR_LOOPBACK_INIT,
+ };
+ const int one = 1;
+ int fdt, fdr;
+
+ parse_opts(argc, argv);
+
+ fdt = socket(PF_INET6, SOCK_DGRAM, 0);
+ if (fdt == -1)
+ error(1, errno, "socket t");
+
+ fdr = socket(PF_INET6, SOCK_DGRAM, 0);
+ if (fdr == -1)
+ error(1, errno, "socket r");
+
+ if (connect(fdt, (void *)&addr, sizeof(addr)))
+ error(1, errno, "connect");
+ if (bind(fdr, (void *)&addr, sizeof(addr)))
+ error(1, errno, "bind");
+
+ flowlabel_get(fdt, cfg_label, IPV6_FL_S_EXCL, IPV6_FL_F_CREATE);
+
+ if (setsockopt(fdr, SOL_IPV6, IPV6_FLOWINFO, &one, sizeof(one)))
+ error(1, errno, "setsockopt flowinfo");
+
+ if (get_autoflowlabel_enabled()) {
+ fprintf(stderr, "send no label: recv auto flowlabel\n");
+ do_send(fdt, false, 0);
+ do_recv(fdr, true, FLOWLABEL_WILDCARD);
+ } else {
+ fprintf(stderr, "send no label: recv no label (auto off)\n");
+ do_send(fdt, false, 0);
+ do_recv(fdr, false, 0);
+ }
+
+ fprintf(stderr, "send label\n");
+ do_send(fdt, true, cfg_label);
+ do_recv(fdr, true, cfg_label);
+
+ if (close(fdr))
+ error(1, errno, "close r");
+ if (close(fdt))
+ error(1, errno, "close t");
+
+ return 0;
+}
diff --git a/tools/testing/selftests/net/ipv6_flowlabel.sh b/tools/testing/selftests/net/ipv6_flowlabel.sh
new file mode 100755
index 000000000..d3bc64427
--- /dev/null
+++ b/tools/testing/selftests/net/ipv6_flowlabel.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Regression tests for IPv6 flowlabels
+#
+# run in separate namespaces to avoid mgmt db conflicts betweent tests
+
+set -e
+
+echo "TEST management"
+./in_netns.sh ./ipv6_flowlabel_mgr
+
+echo "TEST datapath"
+./in_netns.sh \
+ sh -c 'sysctl -q -w net.ipv6.auto_flowlabels=0 && ./ipv6_flowlabel -l 1'
+
+echo "TEST datapath (with auto-flowlabels)"
+./in_netns.sh \
+ sh -c 'sysctl -q -w net.ipv6.auto_flowlabels=1 && ./ipv6_flowlabel -l 1'
+
+echo OK. All tests passed
diff --git a/tools/testing/selftests/net/ipv6_flowlabel_mgr.c b/tools/testing/selftests/net/ipv6_flowlabel_mgr.c
new file mode 100644
index 000000000..af95b48ac
--- /dev/null
+++ b/tools/testing/selftests/net/ipv6_flowlabel_mgr.c
@@ -0,0 +1,199 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Test IPV6_FLOWINFO_MGR */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <error.h>
+#include <errno.h>
+#include <limits.h>
+#include <linux/in6.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+/* uapi/glibc weirdness may leave this undefined */
+#ifndef IPV6_FLOWLABEL_MGR
+#define IPV6_FLOWLABEL_MGR 32
+#endif
+
+/* from net/ipv6/ip6_flowlabel.c */
+#define FL_MIN_LINGER 6
+
+#define explain(x) \
+ do { if (cfg_verbose) fprintf(stderr, " " x "\n"); } while (0)
+
+#define __expect(x) \
+ do { \
+ if (!(x)) \
+ fprintf(stderr, "[OK] " #x "\n"); \
+ else \
+ error(1, 0, "[ERR] " #x " (line %d)", __LINE__); \
+ } while (0)
+
+#define expect_pass(x) __expect(x)
+#define expect_fail(x) __expect(!(x))
+
+static bool cfg_long_running;
+static bool cfg_verbose;
+
+static int flowlabel_get(int fd, uint32_t label, uint8_t share, uint16_t flags)
+{
+ struct in6_flowlabel_req req = {
+ .flr_action = IPV6_FL_A_GET,
+ .flr_label = htonl(label),
+ .flr_flags = flags,
+ .flr_share = share,
+ };
+
+ /* do not pass IPV6_ADDR_ANY or IPV6_ADDR_MAPPED */
+ req.flr_dst.s6_addr[0] = 0xfd;
+ req.flr_dst.s6_addr[15] = 0x1;
+
+ return setsockopt(fd, SOL_IPV6, IPV6_FLOWLABEL_MGR, &req, sizeof(req));
+}
+
+static int flowlabel_put(int fd, uint32_t label)
+{
+ struct in6_flowlabel_req req = {
+ .flr_action = IPV6_FL_A_PUT,
+ .flr_label = htonl(label),
+ };
+
+ return setsockopt(fd, SOL_IPV6, IPV6_FLOWLABEL_MGR, &req, sizeof(req));
+}
+
+static void run_tests(int fd)
+{
+ int wstatus;
+ pid_t pid;
+
+ explain("cannot get non-existent label");
+ expect_fail(flowlabel_get(fd, 1, IPV6_FL_S_ANY, 0));
+
+ explain("cannot put non-existent label");
+ expect_fail(flowlabel_put(fd, 1));
+
+ explain("cannot create label greater than 20 bits");
+ expect_fail(flowlabel_get(fd, 0x1FFFFF, IPV6_FL_S_ANY,
+ IPV6_FL_F_CREATE));
+
+ explain("create a new label (FL_F_CREATE)");
+ expect_pass(flowlabel_get(fd, 1, IPV6_FL_S_ANY, IPV6_FL_F_CREATE));
+ explain("can get the label (without FL_F_CREATE)");
+ expect_pass(flowlabel_get(fd, 1, IPV6_FL_S_ANY, 0));
+ explain("can get it again with create flag set, too");
+ expect_pass(flowlabel_get(fd, 1, IPV6_FL_S_ANY, IPV6_FL_F_CREATE));
+ explain("cannot get it again with the exclusive (FL_FL_EXCL) flag");
+ expect_fail(flowlabel_get(fd, 1, IPV6_FL_S_ANY,
+ IPV6_FL_F_CREATE | IPV6_FL_F_EXCL));
+ explain("can now put exactly three references");
+ expect_pass(flowlabel_put(fd, 1));
+ expect_pass(flowlabel_put(fd, 1));
+ expect_pass(flowlabel_put(fd, 1));
+ expect_fail(flowlabel_put(fd, 1));
+
+ explain("create a new exclusive label (FL_S_EXCL)");
+ expect_pass(flowlabel_get(fd, 2, IPV6_FL_S_EXCL, IPV6_FL_F_CREATE));
+ explain("cannot get it again in non-exclusive mode");
+ expect_fail(flowlabel_get(fd, 2, IPV6_FL_S_ANY, IPV6_FL_F_CREATE));
+ explain("cannot get it again in exclusive mode either");
+ expect_fail(flowlabel_get(fd, 2, IPV6_FL_S_EXCL, IPV6_FL_F_CREATE));
+ expect_pass(flowlabel_put(fd, 2));
+
+ if (cfg_long_running) {
+ explain("cannot reuse the label, due to linger");
+ expect_fail(flowlabel_get(fd, 2, IPV6_FL_S_ANY,
+ IPV6_FL_F_CREATE));
+ explain("after sleep, can reuse");
+ sleep(FL_MIN_LINGER * 2 + 1);
+ expect_pass(flowlabel_get(fd, 2, IPV6_FL_S_ANY,
+ IPV6_FL_F_CREATE));
+ }
+
+ explain("create a new user-private label (FL_S_USER)");
+ expect_pass(flowlabel_get(fd, 3, IPV6_FL_S_USER, IPV6_FL_F_CREATE));
+ explain("cannot get it again in non-exclusive mode");
+ expect_fail(flowlabel_get(fd, 3, IPV6_FL_S_ANY, 0));
+ explain("cannot get it again in exclusive mode");
+ expect_fail(flowlabel_get(fd, 3, IPV6_FL_S_EXCL, 0));
+ explain("can get it again in user mode");
+ expect_pass(flowlabel_get(fd, 3, IPV6_FL_S_USER, 0));
+ explain("child process can get it too, but not after setuid(nobody)");
+ pid = fork();
+ if (pid == -1)
+ error(1, errno, "fork");
+ if (!pid) {
+ expect_pass(flowlabel_get(fd, 3, IPV6_FL_S_USER, 0));
+ if (setuid(USHRT_MAX))
+ fprintf(stderr, "[INFO] skip setuid child test\n");
+ else
+ expect_fail(flowlabel_get(fd, 3, IPV6_FL_S_USER, 0));
+ exit(0);
+ }
+ if (wait(&wstatus) == -1)
+ error(1, errno, "wait");
+ if (!WIFEXITED(wstatus) || WEXITSTATUS(wstatus) != 0)
+ error(1, errno, "wait: unexpected child result");
+
+ explain("create a new process-private label (FL_S_PROCESS)");
+ expect_pass(flowlabel_get(fd, 4, IPV6_FL_S_PROCESS, IPV6_FL_F_CREATE));
+ explain("can get it again");
+ expect_pass(flowlabel_get(fd, 4, IPV6_FL_S_PROCESS, 0));
+ explain("child process cannot can get it");
+ pid = fork();
+ if (pid == -1)
+ error(1, errno, "fork");
+ if (!pid) {
+ expect_fail(flowlabel_get(fd, 4, IPV6_FL_S_PROCESS, 0));
+ exit(0);
+ }
+ if (wait(&wstatus) == -1)
+ error(1, errno, "wait");
+ if (!WIFEXITED(wstatus) || WEXITSTATUS(wstatus) != 0)
+ error(1, errno, "wait: unexpected child result");
+}
+
+static void parse_opts(int argc, char **argv)
+{
+ int c;
+
+ while ((c = getopt(argc, argv, "lv")) != -1) {
+ switch (c) {
+ case 'l':
+ cfg_long_running = true;
+ break;
+ case 'v':
+ cfg_verbose = true;
+ break;
+ default:
+ error(1, 0, "%s: parse error", argv[0]);
+ }
+ }
+}
+
+int main(int argc, char **argv)
+{
+ int fd;
+
+ parse_opts(argc, argv);
+
+ fd = socket(PF_INET6, SOCK_DGRAM, 0);
+ if (fd == -1)
+ error(1, errno, "socket");
+
+ run_tests(fd);
+
+ if (close(fd))
+ error(1, errno, "close");
+
+ return 0;
+}
diff --git a/tools/testing/selftests/net/l2tp.sh b/tools/testing/selftests/net/l2tp.sh
new file mode 100755
index 000000000..578243388
--- /dev/null
+++ b/tools/testing/selftests/net/l2tp.sh
@@ -0,0 +1,382 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# L2TPv3 tunnel between 2 hosts
+#
+# host-1 | router | host-2
+# | |
+# lo l2tp | | l2tp lo
+# 172.16.101.1 172.16.1.1 | | 172.16.1.2 172.16.101.2
+# fc00:101::1 fc00:1::1 | | fc00:1::2 fc00:101::2
+# | |
+# eth0 | | eth0
+# 10.1.1.1 | | 10.1.2.1
+# 2001:db8:1::1 | | 2001:db8:2::1
+
+VERBOSE=0
+PAUSE_ON_FAIL=no
+
+which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
+
+################################################################################
+#
+log_test()
+{
+ local rc=$1
+ local expected=$2
+ local msg="$3"
+
+ if [ ${rc} -eq ${expected} ]; then
+ printf "TEST: %-60s [ OK ]\n" "${msg}"
+ nsuccess=$((nsuccess+1))
+ else
+ ret=1
+ nfail=$((nfail+1))
+ printf "TEST: %-60s [FAIL]\n" "${msg}"
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+ fi
+}
+
+run_cmd()
+{
+ local ns
+ local cmd
+ local out
+ local rc
+
+ ns="$1"
+ shift
+ cmd="$*"
+
+ if [ "$VERBOSE" = "1" ]; then
+ printf " COMMAND: $cmd\n"
+ fi
+
+ out=$(eval ip netns exec ${ns} ${cmd} 2>&1)
+ rc=$?
+ if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+ echo " $out"
+ fi
+
+ [ "$VERBOSE" = "1" ] && echo
+
+ return $rc
+}
+
+################################################################################
+# create namespaces and interconnects
+
+create_ns()
+{
+ local ns=$1
+ local addr=$2
+ local addr6=$3
+
+ [ -z "${addr}" ] && addr="-"
+ [ -z "${addr6}" ] && addr6="-"
+
+ ip netns add ${ns}
+
+ ip -netns ${ns} link set lo up
+ if [ "${addr}" != "-" ]; then
+ ip -netns ${ns} addr add dev lo ${addr}
+ fi
+ if [ "${addr6}" != "-" ]; then
+ ip -netns ${ns} -6 addr add dev lo ${addr6}
+ fi
+
+ ip -netns ${ns} ro add unreachable default metric 8192
+ ip -netns ${ns} -6 ro add unreachable default metric 8192
+
+ ip netns exec ${ns} sysctl -qw net.ipv4.ip_forward=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.forwarding=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.forwarding=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.accept_dad=0
+}
+
+# create veth pair to connect namespaces and apply addresses.
+connect_ns()
+{
+ local ns1=$1
+ local ns1_dev=$2
+ local ns1_addr=$3
+ local ns1_addr6=$4
+ local ns2=$5
+ local ns2_dev=$6
+ local ns2_addr=$7
+ local ns2_addr6=$8
+
+ ip -netns ${ns1} li add ${ns1_dev} type veth peer name tmp
+ ip -netns ${ns1} li set ${ns1_dev} up
+ ip -netns ${ns1} li set tmp netns ${ns2} name ${ns2_dev}
+ ip -netns ${ns2} li set ${ns2_dev} up
+
+ if [ "${ns1_addr}" != "-" ]; then
+ ip -netns ${ns1} addr add dev ${ns1_dev} ${ns1_addr}
+ ip -netns ${ns2} addr add dev ${ns2_dev} ${ns2_addr}
+ fi
+
+ if [ "${ns1_addr6}" != "-" ]; then
+ ip -netns ${ns1} addr add dev ${ns1_dev} ${ns1_addr6}
+ ip -netns ${ns2} addr add dev ${ns2_dev} ${ns2_addr6}
+ fi
+}
+
+################################################################################
+# test setup
+
+cleanup()
+{
+ local ns
+
+ for ns in host-1 host-2 router
+ do
+ ip netns del ${ns} 2>/dev/null
+ done
+}
+
+setup_l2tp_ipv4()
+{
+ #
+ # configure l2tpv3 tunnel on host-1
+ #
+ ip -netns host-1 l2tp add tunnel tunnel_id 1041 peer_tunnel_id 1042 \
+ encap ip local 10.1.1.1 remote 10.1.2.1
+ ip -netns host-1 l2tp add session name l2tp4 tunnel_id 1041 \
+ session_id 1041 peer_session_id 1042
+ ip -netns host-1 link set dev l2tp4 up
+ ip -netns host-1 addr add dev l2tp4 172.16.1.1 peer 172.16.1.2
+
+ #
+ # configure l2tpv3 tunnel on host-2
+ #
+ ip -netns host-2 l2tp add tunnel tunnel_id 1042 peer_tunnel_id 1041 \
+ encap ip local 10.1.2.1 remote 10.1.1.1
+ ip -netns host-2 l2tp add session name l2tp4 tunnel_id 1042 \
+ session_id 1042 peer_session_id 1041
+ ip -netns host-2 link set dev l2tp4 up
+ ip -netns host-2 addr add dev l2tp4 172.16.1.2 peer 172.16.1.1
+
+ #
+ # add routes to loopback addresses
+ #
+ ip -netns host-1 ro add 172.16.101.2/32 via 172.16.1.2
+ ip -netns host-2 ro add 172.16.101.1/32 via 172.16.1.1
+}
+
+setup_l2tp_ipv6()
+{
+ #
+ # configure l2tpv3 tunnel on host-1
+ #
+ ip -netns host-1 l2tp add tunnel tunnel_id 1061 peer_tunnel_id 1062 \
+ encap ip local 2001:db8:1::1 remote 2001:db8:2::1
+ ip -netns host-1 l2tp add session name l2tp6 tunnel_id 1061 \
+ session_id 1061 peer_session_id 1062
+ ip -netns host-1 link set dev l2tp6 up
+ ip -netns host-1 addr add dev l2tp6 fc00:1::1 peer fc00:1::2
+
+ #
+ # configure l2tpv3 tunnel on host-2
+ #
+ ip -netns host-2 l2tp add tunnel tunnel_id 1062 peer_tunnel_id 1061 \
+ encap ip local 2001:db8:2::1 remote 2001:db8:1::1
+ ip -netns host-2 l2tp add session name l2tp6 tunnel_id 1062 \
+ session_id 1062 peer_session_id 1061
+ ip -netns host-2 link set dev l2tp6 up
+ ip -netns host-2 addr add dev l2tp6 fc00:1::2 peer fc00:1::1
+
+ #
+ # add routes to loopback addresses
+ #
+ ip -netns host-1 -6 ro add fc00:101::2/128 via fc00:1::2
+ ip -netns host-2 -6 ro add fc00:101::1/128 via fc00:1::1
+}
+
+setup()
+{
+ # start clean
+ cleanup
+
+ set -e
+ create_ns host-1 172.16.101.1/32 fc00:101::1/128
+ create_ns host-2 172.16.101.2/32 fc00:101::2/128
+ create_ns router
+
+ connect_ns host-1 eth0 10.1.1.1/24 2001:db8:1::1/64 \
+ router eth1 10.1.1.2/24 2001:db8:1::2/64
+
+ connect_ns host-2 eth0 10.1.2.1/24 2001:db8:2::1/64 \
+ router eth2 10.1.2.2/24 2001:db8:2::2/64
+
+ ip -netns host-1 ro add 10.1.2.0/24 via 10.1.1.2
+ ip -netns host-1 -6 ro add 2001:db8:2::/64 via 2001:db8:1::2
+
+ ip -netns host-2 ro add 10.1.1.0/24 via 10.1.2.2
+ ip -netns host-2 -6 ro add 2001:db8:1::/64 via 2001:db8:2::2
+
+ setup_l2tp_ipv4
+ setup_l2tp_ipv6
+ set +e
+}
+
+setup_ipsec()
+{
+ #
+ # IPv4
+ #
+ run_cmd host-1 ip xfrm policy add \
+ src 10.1.1.1 dst 10.1.2.1 dir out \
+ tmpl proto esp mode transport
+
+ run_cmd host-1 ip xfrm policy add \
+ src 10.1.2.1 dst 10.1.1.1 dir in \
+ tmpl proto esp mode transport
+
+ run_cmd host-2 ip xfrm policy add \
+ src 10.1.1.1 dst 10.1.2.1 dir in \
+ tmpl proto esp mode transport
+
+ run_cmd host-2 ip xfrm policy add \
+ src 10.1.2.1 dst 10.1.1.1 dir out \
+ tmpl proto esp mode transport
+
+ ip -netns host-1 xfrm state add \
+ src 10.1.1.1 dst 10.1.2.1 \
+ spi 0x1000 proto esp aead 'rfc4106(gcm(aes))' \
+ 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport
+
+ ip -netns host-1 xfrm state add \
+ src 10.1.2.1 dst 10.1.1.1 \
+ spi 0x1001 proto esp aead 'rfc4106(gcm(aes))' \
+ 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport
+
+ ip -netns host-2 xfrm state add \
+ src 10.1.1.1 dst 10.1.2.1 \
+ spi 0x1000 proto esp aead 'rfc4106(gcm(aes))' \
+ 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport
+
+ ip -netns host-2 xfrm state add \
+ src 10.1.2.1 dst 10.1.1.1 \
+ spi 0x1001 proto esp aead 'rfc4106(gcm(aes))' \
+ 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport
+
+ #
+ # IPV6
+ #
+ run_cmd host-1 ip -6 xfrm policy add \
+ src 2001:db8:1::1 dst 2001:db8:2::1 dir out \
+ tmpl proto esp mode transport
+
+ run_cmd host-1 ip -6 xfrm policy add \
+ src 2001:db8:2::1 dst 2001:db8:1::1 dir in \
+ tmpl proto esp mode transport
+
+ run_cmd host-2 ip -6 xfrm policy add \
+ src 2001:db8:1::1 dst 2001:db8:2::1 dir in \
+ tmpl proto esp mode transport
+
+ run_cmd host-2 ip -6 xfrm policy add \
+ src 2001:db8:2::1 dst 2001:db8:1::1 dir out \
+ tmpl proto esp mode transport
+
+ ip -netns host-1 -6 xfrm state add \
+ src 2001:db8:1::1 dst 2001:db8:2::1 \
+ spi 0x1000 proto esp aead 'rfc4106(gcm(aes))' \
+ 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport
+
+ ip -netns host-1 -6 xfrm state add \
+ src 2001:db8:2::1 dst 2001:db8:1::1 \
+ spi 0x1001 proto esp aead 'rfc4106(gcm(aes))' \
+ 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport
+
+ ip -netns host-2 -6 xfrm state add \
+ src 2001:db8:1::1 dst 2001:db8:2::1 \
+ spi 0x1000 proto esp aead 'rfc4106(gcm(aes))' \
+ 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport
+
+ ip -netns host-2 -6 xfrm state add \
+ src 2001:db8:2::1 dst 2001:db8:1::1 \
+ spi 0x1001 proto esp aead 'rfc4106(gcm(aes))' \
+ 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport
+}
+
+teardown_ipsec()
+{
+ run_cmd host-1 ip xfrm state flush
+ run_cmd host-1 ip xfrm policy flush
+ run_cmd host-2 ip xfrm state flush
+ run_cmd host-2 ip xfrm policy flush
+}
+
+################################################################################
+# generate traffic through tunnel for various cases
+
+run_ping()
+{
+ local desc="$1"
+
+ run_cmd host-1 ping -c1 -w1 172.16.1.2
+ log_test $? 0 "IPv4 basic L2TP tunnel ${desc}"
+
+ run_cmd host-1 ping -c1 -w1 -I 172.16.101.1 172.16.101.2
+ log_test $? 0 "IPv4 route through L2TP tunnel ${desc}"
+
+ run_cmd host-1 ${ping6} -c1 -w1 fc00:1::2
+ log_test $? 0 "IPv6 basic L2TP tunnel ${desc}"
+
+ run_cmd host-1 ${ping6} -c1 -w1 -I fc00:101::1 fc00:101::2
+ log_test $? 0 "IPv6 route through L2TP tunnel ${desc}"
+}
+
+run_tests()
+{
+ local desc
+
+ setup
+ run_ping
+
+ setup_ipsec
+ run_ping "- with IPsec"
+ run_cmd host-1 ping -c1 -w1 172.16.1.2
+ log_test $? 0 "IPv4 basic L2TP tunnel ${desc}"
+
+ run_cmd host-1 ping -c1 -w1 -I 172.16.101.1 172.16.101.2
+ log_test $? 0 "IPv4 route through L2TP tunnel ${desc}"
+
+ run_cmd host-1 ${ping6} -c1 -w1 fc00:1::2
+ log_test $? 0 "IPv6 basic L2TP tunnel - with IPsec"
+
+ run_cmd host-1 ${ping6} -c1 -w1 -I fc00:101::1 fc00:101::2
+ log_test $? 0 "IPv6 route through L2TP tunnel - with IPsec"
+
+ teardown_ipsec
+ run_ping "- after IPsec teardown"
+}
+
+################################################################################
+# main
+
+declare -i nfail=0
+declare -i nsuccess=0
+
+while getopts :pv o
+do
+ case $o in
+ p) PAUSE_ON_FAIL=yes;;
+ v) VERBOSE=$(($VERBOSE + 1));;
+ *) exit 1;;
+ esac
+done
+
+run_tests
+cleanup
+
+printf "\nTests passed: %3d\n" ${nsuccess}
+printf "Tests failed: %3d\n" ${nfail}
diff --git a/tools/testing/selftests/net/mptcp/.gitignore b/tools/testing/selftests/net/mptcp/.gitignore
new file mode 100644
index 000000000..260336d5f
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/.gitignore
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+mptcp_connect
+pm_nl_ctl
+*.pcap
diff --git a/tools/testing/selftests/net/mptcp/Makefile b/tools/testing/selftests/net/mptcp/Makefile
new file mode 100644
index 000000000..7072ef1c0
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/Makefile
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0
+
+top_srcdir = ../../../../..
+KSFT_KHDR_INSTALL := 1
+
+CFLAGS = -Wall -Wl,--no-as-needed -O2 -g -I$(top_srcdir)/usr/include
+
+TEST_PROGS := mptcp_connect.sh pm_netlink.sh mptcp_join.sh diag.sh \
+ simult_flows.sh
+
+TEST_GEN_FILES = mptcp_connect pm_nl_ctl
+
+TEST_FILES := mptcp_lib.sh settings
+
+EXTRA_CLEAN := *.pcap
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/net/mptcp/config b/tools/testing/selftests/net/mptcp/config
new file mode 100644
index 000000000..8867c4025
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/config
@@ -0,0 +1,9 @@
+CONFIG_KALLSYMS=y
+CONFIG_MPTCP=y
+CONFIG_IPV6=y
+CONFIG_MPTCP_IPV6=y
+CONFIG_INET_DIAG=m
+CONFIG_INET_MPTCP_DIAG=m
+CONFIG_VETH=y
+CONFIG_NET_SCH_NETEM=m
+CONFIG_SYN_COOKIES=y
diff --git a/tools/testing/selftests/net/mptcp/diag.sh b/tools/testing/selftests/net/mptcp/diag.sh
new file mode 100755
index 000000000..34577d469
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/diag.sh
@@ -0,0 +1,125 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+. "$(dirname "${0}")/mptcp_lib.sh"
+
+rndh=$(printf %x $sec)-$(mktemp -u XXXXXX)
+ns="ns1-$rndh"
+ksft_skip=4
+test_cnt=1
+ret=0
+pids=()
+
+flush_pids()
+{
+ # mptcp_connect in join mode will sleep a bit before completing,
+ # give it some time
+ sleep 1.1
+
+ for pid in ${pids[@]}; do
+ [ -d /proc/$pid ] && kill -SIGUSR1 $pid >/dev/null 2>&1
+ done
+ pids=()
+}
+
+cleanup()
+{
+ ip netns del $ns
+ for pid in ${pids[@]}; do
+ [ -d /proc/$pid ] && kill -9 $pid >/dev/null 2>&1
+ done
+}
+
+mptcp_lib_check_mptcp
+
+ip -Version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+ss -h | grep -q MPTCP
+if [ $? -ne 0 ];then
+ echo "SKIP: ss tool does not support MPTCP"
+ exit $ksft_skip
+fi
+
+__chk_nr()
+{
+ local condition="$1"
+ local expected=$2
+ local msg nr
+
+ shift 2
+ msg=$*
+ nr=$(ss -inmHMN $ns | $condition)
+
+ printf "%-50s" "$msg"
+ if [ $nr != $expected ]; then
+ echo "[ fail ] expected $expected found $nr"
+ ret=$test_cnt
+ else
+ echo "[ ok ]"
+ fi
+ test_cnt=$((test_cnt+1))
+}
+
+chk_msk_nr()
+{
+ __chk_nr "grep -c token:" $*
+}
+
+chk_msk_fallback_nr()
+{
+ __chk_nr "grep -c fallback" $*
+}
+
+chk_msk_remote_key_nr()
+{
+ __chk_nr "grep -c remote_key" $*
+}
+
+
+trap cleanup EXIT
+ip netns add $ns
+ip -n $ns link set dev lo up
+
+echo "a" | ip netns exec $ns ./mptcp_connect -p 10000 -l 0.0.0.0 -t 100 >/dev/null &
+sleep 0.1
+pids[0]=$!
+chk_msk_nr 0 "no msk on netns creation"
+
+echo "b" | ip netns exec $ns ./mptcp_connect -p 10000 127.0.0.1 -j -t 100 >/dev/null &
+sleep 0.1
+pids[1]=$!
+chk_msk_nr 2 "after MPC handshake "
+chk_msk_remote_key_nr 2 "....chk remote_key"
+chk_msk_fallback_nr 0 "....chk no fallback"
+flush_pids
+
+
+echo "a" | ip netns exec $ns ./mptcp_connect -p 10001 -s TCP -l 0.0.0.0 -t 100 >/dev/null &
+pids[0]=$!
+sleep 0.1
+echo "b" | ip netns exec $ns ./mptcp_connect -p 10001 127.0.0.1 -j -t 100 >/dev/null &
+pids[1]=$!
+sleep 0.1
+chk_msk_fallback_nr 1 "check fallback"
+flush_pids
+
+NR_CLIENTS=100
+for I in `seq 1 $NR_CLIENTS`; do
+ echo "a" | ip netns exec $ns ./mptcp_connect -p $((I+10001)) -l 0.0.0.0 -t 100 -w 10 >/dev/null &
+ pids[$((I*2))]=$!
+done
+sleep 0.1
+
+for I in `seq 1 $NR_CLIENTS`; do
+ echo "b" | ip netns exec $ns ./mptcp_connect -p $((I+10001)) 127.0.0.1 -t 100 -w 10 >/dev/null &
+ pids[$((I*2 + 1))]=$!
+done
+sleep 1.5
+
+chk_msk_nr $((NR_CLIENTS*2)) "many msk socket present"
+flush_pids
+
+exit $ret
diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.c b/tools/testing/selftests/net/mptcp/mptcp_connect.c
new file mode 100644
index 000000000..37c1ec888
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect.c
@@ -0,0 +1,912 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <limits.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <strings.h>
+#include <signal.h>
+#include <unistd.h>
+
+#include <sys/poll.h>
+#include <sys/random.h>
+#include <sys/sendfile.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+
+#include <netdb.h>
+#include <netinet/in.h>
+
+#include <linux/tcp.h>
+
+extern int optind;
+
+#ifndef IPPROTO_MPTCP
+#define IPPROTO_MPTCP 262
+#endif
+#ifndef TCP_ULP
+#define TCP_ULP 31
+#endif
+
+static int poll_timeout = 10 * 1000;
+static bool listen_mode;
+static bool quit;
+
+enum cfg_mode {
+ CFG_MODE_POLL,
+ CFG_MODE_MMAP,
+ CFG_MODE_SENDFILE,
+};
+
+static enum cfg_mode cfg_mode = CFG_MODE_POLL;
+static const char *cfg_host;
+static const char *cfg_port = "12000";
+static int cfg_sock_proto = IPPROTO_MPTCP;
+static bool tcpulp_audit;
+static int pf = AF_INET;
+static int cfg_sndbuf;
+static int cfg_rcvbuf;
+static bool cfg_join;
+static bool cfg_remove;
+static int cfg_wait;
+
+static void die_usage(void)
+{
+ fprintf(stderr, "Usage: mptcp_connect [-6] [-u] [-s MPTCP|TCP] [-p port] [-m mode]"
+ "[-l] [-w sec] connect_address\n");
+ fprintf(stderr, "\t-6 use ipv6\n");
+ fprintf(stderr, "\t-t num -- set poll timeout to num\n");
+ fprintf(stderr, "\t-S num -- set SO_SNDBUF to num\n");
+ fprintf(stderr, "\t-R num -- set SO_RCVBUF to num\n");
+ fprintf(stderr, "\t-p num -- use port num\n");
+ fprintf(stderr, "\t-s [MPTCP|TCP] -- use mptcp(default) or tcp sockets\n");
+ fprintf(stderr, "\t-m [poll|mmap|sendfile] -- use poll(default)/mmap+write/sendfile\n");
+ fprintf(stderr, "\t-u -- check mptcp ulp\n");
+ fprintf(stderr, "\t-w num -- wait num sec before closing the socket\n");
+ exit(1);
+}
+
+static void handle_signal(int nr)
+{
+ quit = true;
+}
+
+static const char *getxinfo_strerr(int err)
+{
+ if (err == EAI_SYSTEM)
+ return strerror(errno);
+
+ return gai_strerror(err);
+}
+
+static void xgetnameinfo(const struct sockaddr *addr, socklen_t addrlen,
+ char *host, socklen_t hostlen,
+ char *serv, socklen_t servlen)
+{
+ int flags = NI_NUMERICHOST | NI_NUMERICSERV;
+ int err = getnameinfo(addr, addrlen, host, hostlen, serv, servlen,
+ flags);
+
+ if (err) {
+ const char *errstr = getxinfo_strerr(err);
+
+ fprintf(stderr, "Fatal: getnameinfo: %s\n", errstr);
+ exit(1);
+ }
+}
+
+static void xgetaddrinfo(const char *node, const char *service,
+ const struct addrinfo *hints,
+ struct addrinfo **res)
+{
+ int err = getaddrinfo(node, service, hints, res);
+
+ if (err) {
+ const char *errstr = getxinfo_strerr(err);
+
+ fprintf(stderr, "Fatal: getaddrinfo(%s:%s): %s\n",
+ node ? node : "", service ? service : "", errstr);
+ exit(1);
+ }
+}
+
+static void set_rcvbuf(int fd, unsigned int size)
+{
+ int err;
+
+ err = setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &size, sizeof(size));
+ if (err) {
+ perror("set SO_RCVBUF");
+ exit(1);
+ }
+}
+
+static void set_sndbuf(int fd, unsigned int size)
+{
+ int err;
+
+ err = setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &size, sizeof(size));
+ if (err) {
+ perror("set SO_SNDBUF");
+ exit(1);
+ }
+}
+
+static int sock_listen_mptcp(const char * const listenaddr,
+ const char * const port)
+{
+ int sock;
+ struct addrinfo hints = {
+ .ai_protocol = IPPROTO_TCP,
+ .ai_socktype = SOCK_STREAM,
+ .ai_flags = AI_PASSIVE | AI_NUMERICHOST
+ };
+
+ hints.ai_family = pf;
+
+ struct addrinfo *a, *addr;
+ int one = 1;
+
+ xgetaddrinfo(listenaddr, port, &hints, &addr);
+ hints.ai_family = pf;
+
+ for (a = addr; a; a = a->ai_next) {
+ sock = socket(a->ai_family, a->ai_socktype, cfg_sock_proto);
+ if (sock < 0)
+ continue;
+
+ if (-1 == setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &one,
+ sizeof(one)))
+ perror("setsockopt");
+
+ if (bind(sock, a->ai_addr, a->ai_addrlen) == 0)
+ break; /* success */
+
+ perror("bind");
+ close(sock);
+ sock = -1;
+ }
+
+ freeaddrinfo(addr);
+
+ if (sock < 0) {
+ fprintf(stderr, "Could not create listen socket\n");
+ return sock;
+ }
+
+ if (listen(sock, 20)) {
+ perror("listen");
+ close(sock);
+ return -1;
+ }
+
+ return sock;
+}
+
+static bool sock_test_tcpulp(const char * const remoteaddr,
+ const char * const port)
+{
+ struct addrinfo hints = {
+ .ai_protocol = IPPROTO_TCP,
+ .ai_socktype = SOCK_STREAM,
+ };
+ struct addrinfo *a, *addr;
+ int sock = -1, ret = 0;
+ bool test_pass = false;
+
+ hints.ai_family = AF_INET;
+
+ xgetaddrinfo(remoteaddr, port, &hints, &addr);
+ for (a = addr; a; a = a->ai_next) {
+ sock = socket(a->ai_family, a->ai_socktype, IPPROTO_TCP);
+ if (sock < 0) {
+ perror("socket");
+ continue;
+ }
+ ret = setsockopt(sock, IPPROTO_TCP, TCP_ULP, "mptcp",
+ sizeof("mptcp"));
+ if (ret == -1 && errno == EOPNOTSUPP)
+ test_pass = true;
+ close(sock);
+
+ if (test_pass)
+ break;
+ if (!ret)
+ fprintf(stderr,
+ "setsockopt(TCP_ULP) returned 0\n");
+ else
+ perror("setsockopt(TCP_ULP)");
+ }
+ return test_pass;
+}
+
+static int sock_connect_mptcp(const char * const remoteaddr,
+ const char * const port, int proto)
+{
+ struct addrinfo hints = {
+ .ai_protocol = IPPROTO_TCP,
+ .ai_socktype = SOCK_STREAM,
+ };
+ struct addrinfo *a, *addr;
+ int sock = -1;
+
+ hints.ai_family = pf;
+
+ xgetaddrinfo(remoteaddr, port, &hints, &addr);
+ for (a = addr; a; a = a->ai_next) {
+ sock = socket(a->ai_family, a->ai_socktype, proto);
+ if (sock < 0) {
+ perror("socket");
+ continue;
+ }
+
+ if (connect(sock, a->ai_addr, a->ai_addrlen) == 0)
+ break; /* success */
+
+ perror("connect()");
+ close(sock);
+ sock = -1;
+ }
+
+ freeaddrinfo(addr);
+ return sock;
+}
+
+static size_t do_rnd_write(const int fd, char *buf, const size_t len)
+{
+ static bool first = true;
+ unsigned int do_w;
+ ssize_t bw;
+
+ do_w = rand() & 0xffff;
+ if (do_w == 0 || do_w > len)
+ do_w = len;
+
+ if (cfg_join && first && do_w > 100)
+ do_w = 100;
+
+ if (cfg_remove && do_w > 50)
+ do_w = 50;
+
+ bw = write(fd, buf, do_w);
+ if (bw < 0)
+ perror("write");
+
+ /* let the join handshake complete, before going on */
+ if (cfg_join && first) {
+ usleep(200000);
+ first = false;
+ }
+
+ if (cfg_remove)
+ usleep(200000);
+
+ return bw;
+}
+
+static size_t do_write(const int fd, char *buf, const size_t len)
+{
+ size_t offset = 0;
+
+ while (offset < len) {
+ size_t written;
+ ssize_t bw;
+
+ bw = write(fd, buf + offset, len - offset);
+ if (bw < 0) {
+ perror("write");
+ return 0;
+ }
+
+ written = (size_t)bw;
+ offset += written;
+ }
+
+ return offset;
+}
+
+static ssize_t do_rnd_read(const int fd, char *buf, const size_t len)
+{
+ size_t cap = rand();
+
+ cap &= 0xffff;
+
+ if (cap == 0)
+ cap = 1;
+ else if (cap > len)
+ cap = len;
+
+ return read(fd, buf, cap);
+}
+
+static void set_nonblock(int fd)
+{
+ int flags = fcntl(fd, F_GETFL);
+
+ if (flags == -1)
+ return;
+
+ fcntl(fd, F_SETFL, flags | O_NONBLOCK);
+}
+
+static int copyfd_io_poll(int infd, int peerfd, int outfd)
+{
+ struct pollfd fds = {
+ .fd = peerfd,
+ .events = POLLIN | POLLOUT,
+ };
+ unsigned int woff = 0, wlen = 0;
+ char wbuf[8192];
+
+ set_nonblock(peerfd);
+
+ for (;;) {
+ char rbuf[8192];
+ ssize_t len;
+
+ if (fds.events == 0)
+ break;
+
+ switch (poll(&fds, 1, poll_timeout)) {
+ case -1:
+ if (errno == EINTR)
+ continue;
+ perror("poll");
+ return 1;
+ case 0:
+ fprintf(stderr, "%s: poll timed out (events: "
+ "POLLIN %u, POLLOUT %u)\n", __func__,
+ fds.events & POLLIN, fds.events & POLLOUT);
+ return 2;
+ }
+
+ if (fds.revents & POLLIN) {
+ len = do_rnd_read(peerfd, rbuf, sizeof(rbuf));
+ if (len == 0) {
+ /* no more data to receive:
+ * peer has closed its write side
+ */
+ fds.events &= ~POLLIN;
+
+ if ((fds.events & POLLOUT) == 0)
+ /* and nothing more to send */
+ break;
+
+ /* Else, still have data to transmit */
+ } else if (len < 0) {
+ perror("read");
+ return 3;
+ }
+
+ do_write(outfd, rbuf, len);
+ }
+
+ if (fds.revents & POLLOUT) {
+ if (wlen == 0) {
+ woff = 0;
+ wlen = read(infd, wbuf, sizeof(wbuf));
+ }
+
+ if (wlen > 0) {
+ ssize_t bw;
+
+ bw = do_rnd_write(peerfd, wbuf + woff, wlen);
+ if (bw < 0)
+ return 111;
+
+ woff += bw;
+ wlen -= bw;
+ } else if (wlen == 0) {
+ /* We have no more data to send. */
+ fds.events &= ~POLLOUT;
+
+ if ((fds.events & POLLIN) == 0)
+ /* ... and peer also closed already */
+ break;
+
+ /* ... but we still receive.
+ * Close our write side, ev. give some time
+ * for address notification and/or checking
+ * the current status
+ */
+ if (cfg_wait)
+ usleep(cfg_wait);
+ shutdown(peerfd, SHUT_WR);
+ } else {
+ if (errno == EINTR)
+ continue;
+ perror("read");
+ return 4;
+ }
+ }
+
+ if (fds.revents & (POLLERR | POLLNVAL)) {
+ fprintf(stderr, "Unexpected revents: "
+ "POLLERR/POLLNVAL(%x)\n", fds.revents);
+ return 5;
+ }
+ }
+
+ /* leave some time for late join/announce */
+ if (cfg_join || cfg_remove)
+ usleep(cfg_wait);
+
+ close(peerfd);
+ return 0;
+}
+
+static int do_recvfile(int infd, int outfd)
+{
+ ssize_t r;
+
+ do {
+ char buf[16384];
+
+ r = do_rnd_read(infd, buf, sizeof(buf));
+ if (r > 0) {
+ if (write(outfd, buf, r) != r)
+ break;
+ } else if (r < 0) {
+ perror("read");
+ }
+ } while (r > 0);
+
+ return (int)r;
+}
+
+static int do_mmap(int infd, int outfd, unsigned int size)
+{
+ char *inbuf = mmap(NULL, size, PROT_READ, MAP_SHARED, infd, 0);
+ ssize_t ret = 0, off = 0;
+ size_t rem;
+
+ if (inbuf == MAP_FAILED) {
+ perror("mmap");
+ return 1;
+ }
+
+ rem = size;
+
+ while (rem > 0) {
+ ret = write(outfd, inbuf + off, rem);
+
+ if (ret < 0) {
+ perror("write");
+ break;
+ }
+
+ off += ret;
+ rem -= ret;
+ }
+
+ munmap(inbuf, size);
+ return rem;
+}
+
+static int get_infd_size(int fd)
+{
+ struct stat sb;
+ ssize_t count;
+ int err;
+
+ err = fstat(fd, &sb);
+ if (err < 0) {
+ perror("fstat");
+ return -1;
+ }
+
+ if ((sb.st_mode & S_IFMT) != S_IFREG) {
+ fprintf(stderr, "%s: stdin is not a regular file\n", __func__);
+ return -2;
+ }
+
+ count = sb.st_size;
+ if (count > INT_MAX) {
+ fprintf(stderr, "File too large: %zu\n", count);
+ return -3;
+ }
+
+ return (int)count;
+}
+
+static int do_sendfile(int infd, int outfd, unsigned int count)
+{
+ while (count > 0) {
+ ssize_t r;
+
+ r = sendfile(outfd, infd, NULL, count);
+ if (r < 0) {
+ perror("sendfile");
+ return 3;
+ }
+
+ count -= r;
+ }
+
+ return 0;
+}
+
+static int copyfd_io_mmap(int infd, int peerfd, int outfd,
+ unsigned int size)
+{
+ int err;
+
+ if (listen_mode) {
+ err = do_recvfile(peerfd, outfd);
+ if (err)
+ return err;
+
+ err = do_mmap(infd, peerfd, size);
+ } else {
+ err = do_mmap(infd, peerfd, size);
+ if (err)
+ return err;
+
+ shutdown(peerfd, SHUT_WR);
+
+ err = do_recvfile(peerfd, outfd);
+ }
+
+ return err;
+}
+
+static int copyfd_io_sendfile(int infd, int peerfd, int outfd,
+ unsigned int size)
+{
+ int err;
+
+ if (listen_mode) {
+ err = do_recvfile(peerfd, outfd);
+ if (err)
+ return err;
+
+ err = do_sendfile(infd, peerfd, size);
+ } else {
+ err = do_sendfile(infd, peerfd, size);
+ if (err)
+ return err;
+ err = do_recvfile(peerfd, outfd);
+ }
+
+ return err;
+}
+
+static int copyfd_io(int infd, int peerfd, int outfd)
+{
+ int file_size;
+
+ switch (cfg_mode) {
+ case CFG_MODE_POLL:
+ return copyfd_io_poll(infd, peerfd, outfd);
+ case CFG_MODE_MMAP:
+ file_size = get_infd_size(infd);
+ if (file_size < 0)
+ return file_size;
+ return copyfd_io_mmap(infd, peerfd, outfd, file_size);
+ case CFG_MODE_SENDFILE:
+ file_size = get_infd_size(infd);
+ if (file_size < 0)
+ return file_size;
+ return copyfd_io_sendfile(infd, peerfd, outfd, file_size);
+ }
+
+ fprintf(stderr, "Invalid mode %d\n", cfg_mode);
+
+ die_usage();
+ return 1;
+}
+
+static void check_sockaddr(int pf, struct sockaddr_storage *ss,
+ socklen_t salen)
+{
+ struct sockaddr_in6 *sin6;
+ struct sockaddr_in *sin;
+ socklen_t wanted_size = 0;
+
+ switch (pf) {
+ case AF_INET:
+ wanted_size = sizeof(*sin);
+ sin = (void *)ss;
+ if (!sin->sin_port)
+ fprintf(stderr, "accept: something wrong: ip connection from port 0");
+ break;
+ case AF_INET6:
+ wanted_size = sizeof(*sin6);
+ sin6 = (void *)ss;
+ if (!sin6->sin6_port)
+ fprintf(stderr, "accept: something wrong: ipv6 connection from port 0");
+ break;
+ default:
+ fprintf(stderr, "accept: Unknown pf %d, salen %u\n", pf, salen);
+ return;
+ }
+
+ if (salen != wanted_size)
+ fprintf(stderr, "accept: size mismatch, got %d expected %d\n",
+ (int)salen, wanted_size);
+
+ if (ss->ss_family != pf)
+ fprintf(stderr, "accept: pf mismatch, expect %d, ss_family is %d\n",
+ (int)ss->ss_family, pf);
+}
+
+static void check_getpeername(int fd, struct sockaddr_storage *ss, socklen_t salen)
+{
+ struct sockaddr_storage peerss;
+ socklen_t peersalen = sizeof(peerss);
+
+ if (getpeername(fd, (struct sockaddr *)&peerss, &peersalen) < 0) {
+ perror("getpeername");
+ return;
+ }
+
+ if (peersalen != salen) {
+ fprintf(stderr, "%s: %d vs %d\n", __func__, peersalen, salen);
+ return;
+ }
+
+ if (memcmp(ss, &peerss, peersalen)) {
+ char a[INET6_ADDRSTRLEN];
+ char b[INET6_ADDRSTRLEN];
+ char c[INET6_ADDRSTRLEN];
+ char d[INET6_ADDRSTRLEN];
+
+ xgetnameinfo((struct sockaddr *)ss, salen,
+ a, sizeof(a), b, sizeof(b));
+
+ xgetnameinfo((struct sockaddr *)&peerss, peersalen,
+ c, sizeof(c), d, sizeof(d));
+
+ fprintf(stderr, "%s: memcmp failure: accept %s vs peername %s, %s vs %s salen %d vs %d\n",
+ __func__, a, c, b, d, peersalen, salen);
+ }
+}
+
+static void check_getpeername_connect(int fd)
+{
+ struct sockaddr_storage ss;
+ socklen_t salen = sizeof(ss);
+ char a[INET6_ADDRSTRLEN];
+ char b[INET6_ADDRSTRLEN];
+
+ if (getpeername(fd, (struct sockaddr *)&ss, &salen) < 0) {
+ perror("getpeername");
+ return;
+ }
+
+ xgetnameinfo((struct sockaddr *)&ss, salen,
+ a, sizeof(a), b, sizeof(b));
+
+ if (strcmp(cfg_host, a) || strcmp(cfg_port, b))
+ fprintf(stderr, "%s: %s vs %s, %s vs %s\n", __func__,
+ cfg_host, a, cfg_port, b);
+}
+
+static void maybe_close(int fd)
+{
+ unsigned int r = rand();
+
+ if (!(cfg_join || cfg_remove) && (r & 1))
+ close(fd);
+}
+
+int main_loop_s(int listensock)
+{
+ struct sockaddr_storage ss;
+ struct pollfd polls;
+ socklen_t salen;
+ int remotesock;
+
+ polls.fd = listensock;
+ polls.events = POLLIN;
+
+ switch (poll(&polls, 1, poll_timeout)) {
+ case -1:
+ perror("poll");
+ return 1;
+ case 0:
+ fprintf(stderr, "%s: timed out\n", __func__);
+ close(listensock);
+ return 2;
+ }
+
+ salen = sizeof(ss);
+ remotesock = accept(listensock, (struct sockaddr *)&ss, &salen);
+ if (remotesock >= 0) {
+ maybe_close(listensock);
+ check_sockaddr(pf, &ss, salen);
+ check_getpeername(remotesock, &ss, salen);
+
+ return copyfd_io(0, remotesock, 1);
+ }
+
+ perror("accept");
+
+ return 1;
+}
+
+static void init_rng(void)
+{
+ unsigned int foo;
+
+ if (getrandom(&foo, sizeof(foo), 0) == -1) {
+ perror("getrandom");
+ exit(1);
+ }
+
+ srand(foo);
+}
+
+int main_loop(void)
+{
+ int fd;
+
+ /* listener is ready. */
+ fd = sock_connect_mptcp(cfg_host, cfg_port, cfg_sock_proto);
+ if (fd < 0)
+ return 2;
+
+ check_getpeername_connect(fd);
+
+ if (cfg_rcvbuf)
+ set_rcvbuf(fd, cfg_rcvbuf);
+ if (cfg_sndbuf)
+ set_sndbuf(fd, cfg_sndbuf);
+
+ return copyfd_io(0, fd, 1);
+}
+
+int parse_proto(const char *proto)
+{
+ if (!strcasecmp(proto, "MPTCP"))
+ return IPPROTO_MPTCP;
+ if (!strcasecmp(proto, "TCP"))
+ return IPPROTO_TCP;
+
+ fprintf(stderr, "Unknown protocol: %s\n.", proto);
+ die_usage();
+
+ /* silence compiler warning */
+ return 0;
+}
+
+int parse_mode(const char *mode)
+{
+ if (!strcasecmp(mode, "poll"))
+ return CFG_MODE_POLL;
+ if (!strcasecmp(mode, "mmap"))
+ return CFG_MODE_MMAP;
+ if (!strcasecmp(mode, "sendfile"))
+ return CFG_MODE_SENDFILE;
+
+ fprintf(stderr, "Unknown test mode: %s\n", mode);
+ fprintf(stderr, "Supported modes are:\n");
+ fprintf(stderr, "\t\t\"poll\" - interleaved read/write using poll()\n");
+ fprintf(stderr, "\t\t\"mmap\" - send entire input file (mmap+write), then read response (-l will read input first)\n");
+ fprintf(stderr, "\t\t\"sendfile\" - send entire input file (sendfile), then read response (-l will read input first)\n");
+
+ die_usage();
+
+ /* silence compiler warning */
+ return 0;
+}
+
+static int parse_int(const char *size)
+{
+ unsigned long s;
+
+ errno = 0;
+
+ s = strtoul(size, NULL, 0);
+
+ if (errno) {
+ fprintf(stderr, "Invalid sndbuf size %s (%s)\n",
+ size, strerror(errno));
+ die_usage();
+ }
+
+ if (s > INT_MAX) {
+ fprintf(stderr, "Invalid sndbuf size %s (%s)\n",
+ size, strerror(ERANGE));
+ die_usage();
+ }
+
+ return (int)s;
+}
+
+static void parse_opts(int argc, char **argv)
+{
+ int c;
+
+ while ((c = getopt(argc, argv, "6jrlp:s:hut:m:S:R:w:")) != -1) {
+ switch (c) {
+ case 'j':
+ cfg_join = true;
+ cfg_mode = CFG_MODE_POLL;
+ cfg_wait = 400000;
+ break;
+ case 'r':
+ cfg_remove = true;
+ cfg_mode = CFG_MODE_POLL;
+ cfg_wait = 400000;
+ break;
+ case 'l':
+ listen_mode = true;
+ break;
+ case 'p':
+ cfg_port = optarg;
+ break;
+ case 's':
+ cfg_sock_proto = parse_proto(optarg);
+ break;
+ case 'h':
+ die_usage();
+ break;
+ case 'u':
+ tcpulp_audit = true;
+ break;
+ case '6':
+ pf = AF_INET6;
+ break;
+ case 't':
+ poll_timeout = atoi(optarg) * 1000;
+ if (poll_timeout <= 0)
+ poll_timeout = -1;
+ break;
+ case 'm':
+ cfg_mode = parse_mode(optarg);
+ break;
+ case 'S':
+ cfg_sndbuf = parse_int(optarg);
+ break;
+ case 'R':
+ cfg_rcvbuf = parse_int(optarg);
+ break;
+ case 'w':
+ cfg_wait = atoi(optarg)*1000000;
+ break;
+ }
+ }
+
+ if (optind + 1 != argc)
+ die_usage();
+ cfg_host = argv[optind];
+
+ if (strchr(cfg_host, ':'))
+ pf = AF_INET6;
+}
+
+int main(int argc, char *argv[])
+{
+ init_rng();
+
+ signal(SIGUSR1, handle_signal);
+ parse_opts(argc, argv);
+
+ if (tcpulp_audit)
+ return sock_test_tcpulp(cfg_host, cfg_port) ? 0 : 1;
+
+ if (listen_mode) {
+ int fd = sock_listen_mptcp(cfg_host, cfg_port);
+
+ if (fd < 0)
+ return 1;
+
+ if (cfg_rcvbuf)
+ set_rcvbuf(fd, cfg_rcvbuf);
+ if (cfg_sndbuf)
+ set_sndbuf(fd, cfg_sndbuf);
+
+ return main_loop_s(fd);
+ }
+
+ return main_loop();
+}
diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.sh b/tools/testing/selftests/net/mptcp/mptcp_connect.sh
new file mode 100755
index 000000000..fb89298bd
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect.sh
@@ -0,0 +1,697 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+. "$(dirname "${0}")/mptcp_lib.sh"
+
+time_start=$(date +%s)
+
+optstring="S:R:d:e:l:r:h4cm:f:t"
+ret=0
+sin=""
+sout=""
+cin=""
+cout=""
+ksft_skip=4
+capture=false
+timeout=30
+ipv6=true
+ethtool_random_on=true
+tc_delay="$((RANDOM%50))"
+tc_loss=$((RANDOM%101))
+testmode=""
+sndbuf=0
+rcvbuf=0
+options_log=true
+do_tcp=0
+filesize=0
+
+if [ $tc_loss -eq 100 ];then
+ tc_loss=1%
+elif [ $tc_loss -ge 10 ]; then
+ tc_loss=0.$tc_loss%
+elif [ $tc_loss -ge 1 ]; then
+ tc_loss=0.0$tc_loss%
+else
+ tc_loss=""
+fi
+
+usage() {
+ echo "Usage: $0 [ -a ]"
+ echo -e "\t-d: tc/netem delay in milliseconds, e.g. \"-d 10\" (default random)"
+ echo -e "\t-l: tc/netem loss percentage, e.g. \"-l 0.02\" (default random)"
+ echo -e "\t-r: tc/netem reorder mode, e.g. \"-r 25% 50% gap 5\", use "-r 0" to disable reordering (default random)"
+ echo -e "\t-e: ethtool features to disable, e.g.: \"-e tso -e gso\" (default: randomly disable any of tso/gso/gro)"
+ echo -e "\t-4: IPv4 only: disable IPv6 tests (default: test both IPv4 and IPv6)"
+ echo -e "\t-c: capture packets for each test using tcpdump (default: no capture)"
+ echo -e "\t-f: size of file to transfer in bytes (default random)"
+ echo -e "\t-S: set sndbuf value (default: use kernel default)"
+ echo -e "\t-R: set rcvbuf value (default: use kernel default)"
+ echo -e "\t-m: test mode (poll, sendfile; default: poll)"
+ echo -e "\t-t: also run tests with TCP (use twice to non-fallback tcp)"
+}
+
+while getopts "$optstring" option;do
+ case "$option" in
+ "h")
+ usage $0
+ exit 0
+ ;;
+ "d")
+ if [ $OPTARG -ge 0 ];then
+ tc_delay="$OPTARG"
+ else
+ echo "-d requires numeric argument, got \"$OPTARG\"" 1>&2
+ exit 1
+ fi
+ ;;
+ "e")
+ ethtool_args="$ethtool_args $OPTARG off"
+ ethtool_random_on=false
+ ;;
+ "l")
+ tc_loss="$OPTARG"
+ ;;
+ "r")
+ tc_reorder="$OPTARG"
+ ;;
+ "4")
+ ipv6=false
+ ;;
+ "c")
+ capture=true
+ ;;
+ "S")
+ if [ $OPTARG -ge 0 ];then
+ sndbuf="$OPTARG"
+ else
+ echo "-S requires numeric argument, got \"$OPTARG\"" 1>&2
+ exit 1
+ fi
+ ;;
+ "R")
+ if [ $OPTARG -ge 0 ];then
+ rcvbuf="$OPTARG"
+ else
+ echo "-R requires numeric argument, got \"$OPTARG\"" 1>&2
+ exit 1
+ fi
+ ;;
+ "m")
+ testmode="$OPTARG"
+ ;;
+ "f")
+ filesize="$OPTARG"
+ ;;
+ "t")
+ do_tcp=$((do_tcp+1))
+ ;;
+ "?")
+ usage $0
+ exit 1
+ ;;
+ esac
+done
+
+sec=$(date +%s)
+rndh=$(printf %x $sec)-$(mktemp -u XXXXXX)
+ns1="ns1-$rndh"
+ns2="ns2-$rndh"
+ns3="ns3-$rndh"
+ns4="ns4-$rndh"
+
+TEST_COUNT=0
+
+cleanup()
+{
+ rm -f "$cin" "$cout"
+ rm -f "$sin" "$sout"
+ rm -f "$capout"
+
+ local netns
+ for netns in "$ns1" "$ns2" "$ns3" "$ns4";do
+ ip netns del $netns
+ done
+}
+
+mptcp_lib_check_mptcp
+
+ip -Version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+
+sin=$(mktemp)
+sout=$(mktemp)
+cin=$(mktemp)
+cout=$(mktemp)
+capout=$(mktemp)
+trap cleanup EXIT
+
+for i in "$ns1" "$ns2" "$ns3" "$ns4";do
+ ip netns add $i || exit $ksft_skip
+ ip -net $i link set lo up
+done
+
+# "$ns1" ns2 ns3 ns4
+# ns1eth2 ns2eth1 ns2eth3 ns3eth2 ns3eth4 ns4eth3
+# - drop 1% -> reorder 25%
+# <- TSO off -
+
+ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth1 netns "$ns2"
+ip link add ns2eth3 netns "$ns2" type veth peer name ns3eth2 netns "$ns3"
+ip link add ns3eth4 netns "$ns3" type veth peer name ns4eth3 netns "$ns4"
+
+ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth2
+ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth2 nodad
+
+ip -net "$ns1" link set ns1eth2 up
+ip -net "$ns1" route add default via 10.0.1.2
+ip -net "$ns1" route add default via dead:beef:1::2
+
+ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1
+ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad
+ip -net "$ns2" link set ns2eth1 up
+
+ip -net "$ns2" addr add 10.0.2.1/24 dev ns2eth3
+ip -net "$ns2" addr add dead:beef:2::1/64 dev ns2eth3 nodad
+ip -net "$ns2" link set ns2eth3 up
+ip -net "$ns2" route add default via 10.0.2.2
+ip -net "$ns2" route add default via dead:beef:2::2
+ip netns exec "$ns2" sysctl -q net.ipv4.ip_forward=1
+ip netns exec "$ns2" sysctl -q net.ipv6.conf.all.forwarding=1
+
+ip -net "$ns3" addr add 10.0.2.2/24 dev ns3eth2
+ip -net "$ns3" addr add dead:beef:2::2/64 dev ns3eth2 nodad
+ip -net "$ns3" link set ns3eth2 up
+
+ip -net "$ns3" addr add 10.0.3.2/24 dev ns3eth4
+ip -net "$ns3" addr add dead:beef:3::2/64 dev ns3eth4 nodad
+ip -net "$ns3" link set ns3eth4 up
+ip -net "$ns3" route add default via 10.0.2.1
+ip -net "$ns3" route add default via dead:beef:2::1
+ip netns exec "$ns3" sysctl -q net.ipv4.ip_forward=1
+ip netns exec "$ns3" sysctl -q net.ipv6.conf.all.forwarding=1
+
+ip -net "$ns4" addr add 10.0.3.1/24 dev ns4eth3
+ip -net "$ns4" addr add dead:beef:3::1/64 dev ns4eth3 nodad
+ip -net "$ns4" link set ns4eth3 up
+ip -net "$ns4" route add default via 10.0.3.2
+ip -net "$ns4" route add default via dead:beef:3::2
+
+set_ethtool_flags() {
+ local ns="$1"
+ local dev="$2"
+ local flags="$3"
+
+ ip netns exec $ns ethtool -K $dev $flags 2>/dev/null
+ [ $? -eq 0 ] && echo "INFO: set $ns dev $dev: ethtool -K $flags"
+}
+
+set_random_ethtool_flags() {
+ local flags=""
+ local r=$RANDOM
+
+ local pick1=$((r & 1))
+ local pick2=$((r & 2))
+ local pick3=$((r & 4))
+
+ [ $pick1 -ne 0 ] && flags="tso off"
+ [ $pick2 -ne 0 ] && flags="$flags gso off"
+ [ $pick3 -ne 0 ] && flags="$flags gro off"
+
+ [ -z "$flags" ] && return
+
+ set_ethtool_flags "$1" "$2" "$flags"
+}
+
+if $ethtool_random_on;then
+ set_random_ethtool_flags "$ns3" ns3eth2
+ set_random_ethtool_flags "$ns4" ns4eth3
+else
+ set_ethtool_flags "$ns3" ns3eth2 "$ethtool_args"
+ set_ethtool_flags "$ns4" ns4eth3 "$ethtool_args"
+fi
+
+print_file_err()
+{
+ ls -l "$1" 1>&2
+ echo "Trailing bytes are: "
+ tail -c 27 "$1"
+}
+
+check_transfer()
+{
+ local in=$1
+ local out=$2
+ local what=$3
+
+ cmp "$in" "$out" > /dev/null 2>&1
+ if [ $? -ne 0 ] ;then
+ echo "[ FAIL ] $what does not match (in, out):"
+ print_file_err "$in"
+ print_file_err "$out"
+
+ return 1
+ fi
+
+ return 0
+}
+
+check_mptcp_disabled()
+{
+ local disabled_ns
+ disabled_ns="ns_disabled-$sech-$(mktemp -u XXXXXX)"
+ ip netns add ${disabled_ns} || exit $ksft_skip
+
+ # net.mptcp.enabled should be enabled by default
+ if [ "$(ip netns exec ${disabled_ns} sysctl net.mptcp.enabled | awk '{ print $3 }')" -ne 1 ]; then
+ echo -e "net.mptcp.enabled sysctl is not 1 by default\t\t[ FAIL ]"
+ ret=1
+ return 1
+ fi
+ ip netns exec ${disabled_ns} sysctl -q net.mptcp.enabled=0
+
+ local err=0
+ LANG=C ip netns exec ${disabled_ns} ./mptcp_connect -t $timeout -p 10000 -s MPTCP 127.0.0.1 < "$cin" 2>&1 | \
+ grep -q "^socket: Protocol not available$" && err=1
+ ip netns delete ${disabled_ns}
+
+ if [ ${err} -eq 0 ]; then
+ echo -e "New MPTCP socket cannot be blocked via sysctl\t\t[ FAIL ]"
+ ret=1
+ return 1
+ fi
+
+ echo -e "New MPTCP socket can be blocked via sysctl\t\t[ OK ]"
+ return 0
+}
+
+check_mptcp_ulp_setsockopt()
+{
+ local t retval
+ t="ns_ulp-$sech-$(mktemp -u XXXXXX)"
+
+ ip netns add ${t} || exit $ksft_skip
+ if ! ip netns exec ${t} ./mptcp_connect -u -p 10000 -s TCP 127.0.0.1 2>&1; then
+ printf "setsockopt(..., TCP_ULP, \"mptcp\", ...) allowed\t[ FAIL ]\n"
+ retval=1
+ ret=$retval
+ else
+ printf "setsockopt(..., TCP_ULP, \"mptcp\", ...) blocked\t[ OK ]\n"
+ retval=0
+ fi
+ ip netns del ${t}
+ return $retval
+}
+
+# $1: IP address
+is_v6()
+{
+ [ -z "${1##*:*}" ]
+}
+
+do_ping()
+{
+ local listener_ns="$1"
+ local connector_ns="$2"
+ local connect_addr="$3"
+ local ping_args="-q -c 1"
+
+ if is_v6 "${connect_addr}"; then
+ $ipv6 || return 0
+ ping_args="${ping_args} -6"
+ fi
+
+ ip netns exec ${connector_ns} ping ${ping_args} $connect_addr >/dev/null
+ if [ $? -ne 0 ] ; then
+ echo "$listener_ns -> $connect_addr connectivity [ FAIL ]" 1>&2
+ ret=1
+
+ return 1
+ fi
+
+ return 0
+}
+
+# $1: ns, $2: port
+wait_local_port_listen()
+{
+ local listener_ns="${1}"
+ local port="${2}"
+
+ local port_hex i
+
+ port_hex="$(printf "%04X" "${port}")"
+ for i in $(seq 10); do
+ ip netns exec "${listener_ns}" cat /proc/net/tcp* | \
+ awk "BEGIN {rc=1} {if (\$2 ~ /:${port_hex}\$/ && \$4 ~ /0A/) {rc=0; exit}} END {exit rc}" &&
+ break
+ sleep 0.1
+ done
+}
+
+do_transfer()
+{
+ local listener_ns="$1"
+ local connector_ns="$2"
+ local cl_proto="$3"
+ local srv_proto="$4"
+ local connect_addr="$5"
+ local local_addr="$6"
+ local extra_args=""
+
+ local port
+ port=$((10000+$TEST_COUNT))
+ TEST_COUNT=$((TEST_COUNT+1))
+
+ if [ "$rcvbuf" -gt 0 ]; then
+ extra_args="$extra_args -R $rcvbuf"
+ fi
+
+ if [ "$sndbuf" -gt 0 ]; then
+ extra_args="$extra_args -S $sndbuf"
+ fi
+
+ if [ -n "$testmode" ]; then
+ extra_args="$extra_args -m $testmode"
+ fi
+
+ if [ -n "$extra_args" ] && $options_log; then
+ options_log=false
+ echo "INFO: extra options: $extra_args"
+ fi
+
+ :> "$cout"
+ :> "$sout"
+ :> "$capout"
+
+ local addr_port
+ addr_port=$(printf "%s:%d" ${connect_addr} ${port})
+ printf "%.3s %-5s -> %.3s (%-20s) %-5s\t" ${connector_ns} ${cl_proto} ${listener_ns} ${addr_port} ${srv_proto}
+
+ if $capture; then
+ local capuser
+ if [ -z $SUDO_USER ] ; then
+ capuser=""
+ else
+ capuser="-Z $SUDO_USER"
+ fi
+
+ local capfile="${rndh}-${connector_ns:0:3}-${listener_ns:0:3}-${cl_proto}-${srv_proto}-${connect_addr}-${port}"
+ local capopt="-i any -s 65535 -B 32768 ${capuser}"
+
+ ip netns exec ${listener_ns} tcpdump ${capopt} -w "${capfile}-listener.pcap" >> "${capout}" 2>&1 &
+ local cappid_listener=$!
+
+ ip netns exec ${connector_ns} tcpdump ${capopt} -w "${capfile}-connector.pcap" >> "${capout}" 2>&1 &
+ local cappid_connector=$!
+
+ sleep 1
+ fi
+
+ local stat_synrx_last_l=$(ip netns exec ${listener_ns} nstat -z -a MPTcpExtMPCapableSYNRX | while read a count c rest ;do echo $count;done)
+ local stat_ackrx_last_l=$(ip netns exec ${listener_ns} nstat -z -a MPTcpExtMPCapableACKRX | while read a count c rest ;do echo $count;done)
+ local stat_cookietx_last=$(ip netns exec ${listener_ns} nstat -z -a TcpExtSyncookiesSent | while read a count c rest ;do echo $count;done)
+ local stat_cookierx_last=$(ip netns exec ${listener_ns} nstat -z -a TcpExtSyncookiesRecv | while read a count c rest ;do echo $count;done)
+
+ ip netns exec ${listener_ns} ./mptcp_connect -t $timeout -l -p $port -s ${srv_proto} $extra_args $local_addr < "$sin" > "$sout" &
+ local spid=$!
+
+ wait_local_port_listen "${listener_ns}" "${port}"
+
+ local start
+ start=$(date +%s%3N)
+ ip netns exec ${connector_ns} ./mptcp_connect -t $timeout -p $port -s ${cl_proto} $extra_args $connect_addr < "$cin" > "$cout" &
+ local cpid=$!
+
+ wait $cpid
+ local retc=$?
+ wait $spid
+ local rets=$?
+
+ local stop
+ stop=$(date +%s%3N)
+
+ if $capture; then
+ sleep 1
+ kill ${cappid_listener}
+ kill ${cappid_connector}
+ fi
+
+ local duration
+ duration=$((stop-start))
+ duration=$(printf "(duration %05sms)" $duration)
+ if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
+ echo "$duration [ FAIL ] client exit code $retc, server $rets" 1>&2
+ echo -e "\nnetns ${listener_ns} socket stat for ${port}:" 1>&2
+ ip netns exec ${listener_ns} ss -nita 1>&2 -o "sport = :$port"
+ echo -e "\nnetns ${connector_ns} socket stat for ${port}:" 1>&2
+ ip netns exec ${connector_ns} ss -nita 1>&2 -o "dport = :$port"
+
+ cat "$capout"
+ return 1
+ fi
+
+ check_transfer $sin $cout "file received by client"
+ retc=$?
+ check_transfer $cin $sout "file received by server"
+ rets=$?
+
+ local stat_synrx_now_l=$(ip netns exec ${listener_ns} nstat -z -a MPTcpExtMPCapableSYNRX | while read a count c rest ;do echo $count;done)
+ local stat_ackrx_now_l=$(ip netns exec ${listener_ns} nstat -z -a MPTcpExtMPCapableACKRX | while read a count c rest ;do echo $count;done)
+
+ local stat_cookietx_now=$(ip netns exec ${listener_ns} nstat -z -a TcpExtSyncookiesSent | while read a count c rest ;do echo $count;done)
+ local stat_cookierx_now=$(ip netns exec ${listener_ns} nstat -z -a TcpExtSyncookiesRecv | while read a count c rest ;do echo $count;done)
+
+ expect_synrx=$((stat_synrx_last_l))
+ expect_ackrx=$((stat_ackrx_last_l))
+
+ cookies=$(ip netns exec ${listener_ns} sysctl net.ipv4.tcp_syncookies)
+ cookies=${cookies##*=}
+
+ if [ ${cl_proto} = "MPTCP" ] && [ ${srv_proto} = "MPTCP" ]; then
+ expect_synrx=$((stat_synrx_last_l+1))
+ expect_ackrx=$((stat_ackrx_last_l+1))
+ fi
+ if [ $cookies -eq 2 ];then
+ if [ $stat_cookietx_last -ge $stat_cookietx_now ] ;then
+ echo "${listener_ns} CookieSent: ${cl_proto} -> ${srv_proto}: did not advance"
+ fi
+ if [ $stat_cookierx_last -ge $stat_cookierx_now ] ;then
+ echo "${listener_ns} CookieRecv: ${cl_proto} -> ${srv_proto}: did not advance"
+ fi
+ else
+ if [ $stat_cookietx_last -ne $stat_cookietx_now ] ;then
+ echo "${listener_ns} CookieSent: ${cl_proto} -> ${srv_proto}: changed"
+ fi
+ if [ $stat_cookierx_last -ne $stat_cookierx_now ] ;then
+ echo "${listener_ns} CookieRecv: ${cl_proto} -> ${srv_proto}: changed"
+ fi
+ fi
+
+ if [ $expect_synrx -ne $stat_synrx_now_l ] ;then
+ echo "${listener_ns} SYNRX: ${cl_proto} -> ${srv_proto}: expect ${expect_synrx}, got ${stat_synrx_now_l}"
+ fi
+ if [ $expect_ackrx -ne $stat_ackrx_now_l ] ;then
+ echo "${listener_ns} ACKRX: ${cl_proto} -> ${srv_proto}: expect ${expect_ackrx}, got ${stat_ackrx_now_l} "
+ fi
+
+ if [ $retc -eq 0 ] && [ $rets -eq 0 ];then
+ echo "$duration [ OK ]"
+ cat "$capout"
+ return 0
+ fi
+
+ cat "$capout"
+ return 1
+}
+
+make_file()
+{
+ local name=$1
+ local who=$2
+ local SIZE=$filesize
+ local ksize
+ local rem
+
+ if [ $SIZE -eq 0 ]; then
+ local MAXSIZE=$((1024 * 1024 * 8))
+ local MINSIZE=$((1024 * 256))
+
+ SIZE=$(((RANDOM * RANDOM + MINSIZE) % MAXSIZE))
+ fi
+
+ ksize=$((SIZE / 1024))
+ rem=$((SIZE - (ksize * 1024)))
+
+ dd if=/dev/urandom of="$name" bs=1024 count=$ksize 2> /dev/null
+ dd if=/dev/urandom conv=notrunc of="$name" bs=1 count=$rem 2> /dev/null
+ echo -e "\nMPTCP_TEST_FILE_END_MARKER" >> "$name"
+
+ echo "Created $name (size $(du -b "$name")) containing data sent by $who"
+}
+
+run_tests_lo()
+{
+ local listener_ns="$1"
+ local connector_ns="$2"
+ local connect_addr="$3"
+ local loopback="$4"
+ local lret=0
+
+ # skip if test programs are running inside same netns for subsequent runs.
+ if [ $loopback -eq 0 ] && [ ${listener_ns} = ${connector_ns} ]; then
+ return 0
+ fi
+
+ # skip if we don't want v6
+ if ! $ipv6 && is_v6 "${connect_addr}"; then
+ return 0
+ fi
+
+ local local_addr
+ if is_v6 "${connect_addr}"; then
+ local_addr="::"
+ else
+ local_addr="0.0.0.0"
+ fi
+
+ do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP ${connect_addr} ${local_addr}
+ lret=$?
+ if [ $lret -ne 0 ]; then
+ ret=$lret
+ return 1
+ fi
+
+ if [ $do_tcp -eq 0 ]; then
+ # don't bother testing fallback tcp except for loopback case.
+ if [ ${listener_ns} != ${connector_ns} ]; then
+ return 0
+ fi
+ fi
+
+ do_transfer ${listener_ns} ${connector_ns} MPTCP TCP ${connect_addr} ${local_addr}
+ lret=$?
+ if [ $lret -ne 0 ]; then
+ ret=$lret
+ return 1
+ fi
+
+ do_transfer ${listener_ns} ${connector_ns} TCP MPTCP ${connect_addr} ${local_addr}
+ lret=$?
+ if [ $lret -ne 0 ]; then
+ ret=$lret
+ return 1
+ fi
+
+ if [ $do_tcp -gt 1 ] ;then
+ do_transfer ${listener_ns} ${connector_ns} TCP TCP ${connect_addr} ${local_addr}
+ lret=$?
+ if [ $lret -ne 0 ]; then
+ ret=$lret
+ return 1
+ fi
+ fi
+
+ return 0
+}
+
+run_tests()
+{
+ run_tests_lo $1 $2 $3 0
+}
+
+make_file "$cin" "client"
+make_file "$sin" "server"
+
+check_mptcp_disabled
+
+check_mptcp_ulp_setsockopt
+
+echo "INFO: validating network environment with pings"
+for sender in "$ns1" "$ns2" "$ns3" "$ns4";do
+ do_ping "$ns1" $sender 10.0.1.1
+ do_ping "$ns1" $sender dead:beef:1::1
+
+ do_ping "$ns2" $sender 10.0.1.2
+ do_ping "$ns2" $sender dead:beef:1::2
+ do_ping "$ns2" $sender 10.0.2.1
+ do_ping "$ns2" $sender dead:beef:2::1
+
+ do_ping "$ns3" $sender 10.0.2.2
+ do_ping "$ns3" $sender dead:beef:2::2
+ do_ping "$ns3" $sender 10.0.3.2
+ do_ping "$ns3" $sender dead:beef:3::2
+
+ do_ping "$ns4" $sender 10.0.3.1
+ do_ping "$ns4" $sender dead:beef:3::1
+done
+
+[ -n "$tc_loss" ] && tc -net "$ns2" qdisc add dev ns2eth3 root netem loss random $tc_loss delay ${tc_delay}ms
+echo -n "INFO: Using loss of $tc_loss "
+test "$tc_delay" -gt 0 && echo -n "delay $tc_delay ms "
+
+reorder_delay=$(($tc_delay / 4))
+
+if [ -z "${tc_reorder}" ]; then
+ reorder1=$((RANDOM%10))
+ reorder1=$((100 - reorder1))
+ reorder2=$((RANDOM%100))
+
+ if [ $reorder_delay -gt 0 ] && [ $reorder1 -lt 100 ] && [ $reorder2 -gt 0 ]; then
+ tc_reorder="reorder ${reorder1}% ${reorder2}%"
+ echo -n "$tc_reorder with delay ${reorder_delay}ms "
+ fi
+elif [ "$tc_reorder" = "0" ];then
+ tc_reorder=""
+elif [ "$reorder_delay" -gt 0 ];then
+ # reordering requires some delay
+ tc_reorder="reorder $tc_reorder"
+ echo -n "$tc_reorder with delay ${reorder_delay}ms "
+fi
+
+echo "on ns3eth4"
+
+tc -net "$ns3" qdisc add dev ns3eth4 root netem delay ${reorder_delay}ms $tc_reorder
+
+for sender in $ns1 $ns2 $ns3 $ns4;do
+ run_tests_lo "$ns1" "$sender" 10.0.1.1 1
+ if [ $ret -ne 0 ] ;then
+ echo "FAIL: Could not even run loopback test" 1>&2
+ exit $ret
+ fi
+ run_tests_lo "$ns1" $sender dead:beef:1::1 1
+ if [ $ret -ne 0 ] ;then
+ echo "FAIL: Could not even run loopback v6 test" 2>&1
+ exit $ret
+ fi
+
+ # ns1<->ns2 is not subject to reordering/tc delays. Use it to test
+ # mptcp syncookie support.
+ if [ $sender = $ns1 ]; then
+ ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=2
+ else
+ ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=1
+ fi
+
+ run_tests "$ns2" $sender 10.0.1.2
+ run_tests "$ns2" $sender dead:beef:1::2
+ run_tests "$ns2" $sender 10.0.2.1
+ run_tests "$ns2" $sender dead:beef:2::1
+
+ run_tests "$ns3" $sender 10.0.2.2
+ run_tests "$ns3" $sender dead:beef:2::2
+ run_tests "$ns3" $sender 10.0.3.2
+ run_tests "$ns3" $sender dead:beef:3::2
+
+ run_tests "$ns4" $sender 10.0.3.1
+ run_tests "$ns4" $sender dead:beef:3::1
+done
+
+time_end=$(date +%s)
+time_run=$((time_end-time_start))
+
+echo "Time: ${time_run} seconds"
+
+exit $ret
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
new file mode 100755
index 000000000..d205828d7
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -0,0 +1,629 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+. "$(dirname "${0}")/mptcp_lib.sh"
+
+ret=0
+sin=""
+sout=""
+cin=""
+cout=""
+ksft_skip=4
+timeout=30
+mptcp_connect=""
+capture=0
+
+TEST_COUNT=0
+
+init()
+{
+ capout=$(mktemp)
+
+ rndh=$(printf %x $sec)-$(mktemp -u XXXXXX)
+
+ ns1="ns1-$rndh"
+ ns2="ns2-$rndh"
+
+ for netns in "$ns1" "$ns2";do
+ ip netns add $netns || exit $ksft_skip
+ ip -net $netns link set lo up
+ ip netns exec $netns sysctl -q net.mptcp.enabled=1
+ ip netns exec $netns sysctl -q net.ipv4.conf.all.rp_filter=0
+ ip netns exec $netns sysctl -q net.ipv4.conf.default.rp_filter=0
+ done
+
+ # ns1 ns2
+ # ns1eth1 ns2eth1
+ # ns1eth2 ns2eth2
+ # ns1eth3 ns2eth3
+ # ns1eth4 ns2eth4
+
+ for i in `seq 1 4`; do
+ ip link add ns1eth$i netns "$ns1" type veth peer name ns2eth$i netns "$ns2"
+ ip -net "$ns1" addr add 10.0.$i.1/24 dev ns1eth$i
+ ip -net "$ns1" addr add dead:beef:$i::1/64 dev ns1eth$i nodad
+ ip -net "$ns1" link set ns1eth$i up
+
+ ip -net "$ns2" addr add 10.0.$i.2/24 dev ns2eth$i
+ ip -net "$ns2" addr add dead:beef:$i::2/64 dev ns2eth$i nodad
+ ip -net "$ns2" link set ns2eth$i up
+
+ # let $ns2 reach any $ns1 address from any interface
+ ip -net "$ns2" route add default via 10.0.$i.1 dev ns2eth$i metric 10$i
+ done
+}
+
+cleanup_partial()
+{
+ rm -f "$capout"
+
+ for netns in "$ns1" "$ns2"; do
+ ip netns del $netns
+ done
+}
+
+cleanup()
+{
+ rm -f "$cin" "$cout"
+ rm -f "$sin" "$sout"
+ cleanup_partial
+}
+
+reset()
+{
+ cleanup_partial
+ init
+}
+
+reset_with_cookies()
+{
+ reset
+
+ for netns in "$ns1" "$ns2";do
+ ip netns exec $netns sysctl -q net.ipv4.tcp_syncookies=2
+ done
+}
+
+for arg in "$@"; do
+ if [ "$arg" = "-c" ]; then
+ capture=1
+ fi
+done
+
+mptcp_lib_check_mptcp
+
+ip -Version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+
+
+check_transfer()
+{
+ in=$1
+ out=$2
+ what=$3
+
+ cmp "$in" "$out" > /dev/null 2>&1
+ if [ $? -ne 0 ] ;then
+ echo "[ FAIL ] $what does not match (in, out):"
+ print_file_err "$in"
+ print_file_err "$out"
+
+ return 1
+ fi
+
+ return 0
+}
+
+do_ping()
+{
+ listener_ns="$1"
+ connector_ns="$2"
+ connect_addr="$3"
+
+ ip netns exec ${connector_ns} ping -q -c 1 $connect_addr >/dev/null
+ if [ $? -ne 0 ] ; then
+ echo "$listener_ns -> $connect_addr connectivity [ FAIL ]" 1>&2
+ ret=1
+ fi
+}
+
+# $1: ns ; $2: counter
+get_counter()
+{
+ local ns="${1}"
+ local counter="${2}"
+ local count
+
+ count=$(ip netns exec ${ns} nstat -asz "${counter}" | awk 'NR==1 {next} {print $2}')
+ if [ -z "${count}" ]; then
+ mptcp_lib_fail_if_expected_feature "${counter} counter"
+ return 1
+ fi
+
+ echo "${count}"
+}
+
+do_transfer()
+{
+ listener_ns="$1"
+ connector_ns="$2"
+ cl_proto="$3"
+ srv_proto="$4"
+ connect_addr="$5"
+ rm_nr_ns1="$6"
+ rm_nr_ns2="$7"
+
+ port=$((10000+$TEST_COUNT))
+ TEST_COUNT=$((TEST_COUNT+1))
+
+ :> "$cout"
+ :> "$sout"
+ :> "$capout"
+
+ if [ $capture -eq 1 ]; then
+ if [ -z $SUDO_USER ] ; then
+ capuser=""
+ else
+ capuser="-Z $SUDO_USER"
+ fi
+
+ capfile=$(printf "mp_join-%02u-%s.pcap" "$TEST_COUNT" "${listener_ns}")
+
+ echo "Capturing traffic for test $TEST_COUNT into $capfile"
+ ip netns exec ${listener_ns} tcpdump -i any -s 65535 -B 32768 $capuser -w $capfile > "$capout" 2>&1 &
+ cappid=$!
+
+ sleep 1
+ fi
+
+ if [[ $rm_nr_ns1 -eq 0 && $rm_nr_ns2 -eq 0 ]]; then
+ mptcp_connect="./mptcp_connect -j"
+ else
+ mptcp_connect="./mptcp_connect -r"
+ fi
+
+ ip netns exec ${listener_ns} $mptcp_connect -t $timeout -l -p $port -s ${srv_proto} 0.0.0.0 < "$sin" > "$sout" &
+ spid=$!
+
+ sleep 1
+
+ ip netns exec ${connector_ns} $mptcp_connect -t $timeout -p $port -s ${cl_proto} $connect_addr < "$cin" > "$cout" &
+ cpid=$!
+
+ if [ $rm_nr_ns1 -gt 0 ]; then
+ counter=1
+ sleep 1
+
+ while [ $counter -le $rm_nr_ns1 ]
+ do
+ ip netns exec ${listener_ns} ./pm_nl_ctl del $counter
+ sleep 1
+ let counter+=1
+ done
+ fi
+
+ if [ $rm_nr_ns2 -gt 0 ]; then
+ counter=1
+ sleep 1
+
+ while [ $counter -le $rm_nr_ns2 ]
+ do
+ ip netns exec ${connector_ns} ./pm_nl_ctl del $counter
+ sleep 1
+ let counter+=1
+ done
+ fi
+
+ wait $cpid
+ retc=$?
+ wait $spid
+ rets=$?
+
+ if [ $capture -eq 1 ]; then
+ sleep 1
+ kill $cappid
+ fi
+
+ if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
+ echo " client exit code $retc, server $rets" 1>&2
+ echo -e "\nnetns ${listener_ns} socket stat for ${port}:" 1>&2
+ ip netns exec ${listener_ns} ss -nita 1>&2 -o "sport = :$port"
+ echo -e "\nnetns ${connector_ns} socket stat for ${port}:" 1>&2
+ ip netns exec ${connector_ns} ss -nita 1>&2 -o "dport = :$port"
+
+ cat "$capout"
+ return 1
+ fi
+
+ check_transfer $sin $cout "file received by client"
+ retc=$?
+ check_transfer $cin $sout "file received by server"
+ rets=$?
+
+ if [ $retc -eq 0 ] && [ $rets -eq 0 ];then
+ cat "$capout"
+ return 0
+ fi
+
+ cat "$capout"
+ return 1
+}
+
+make_file()
+{
+ name=$1
+ who=$2
+
+ SIZE=1
+
+ dd if=/dev/urandom of="$name" bs=1024 count=$SIZE 2> /dev/null
+ echo -e "\nMPTCP_TEST_FILE_END_MARKER" >> "$name"
+
+ echo "Created $name (size $SIZE KB) containing data sent by $who"
+}
+
+run_tests()
+{
+ listener_ns="$1"
+ connector_ns="$2"
+ connect_addr="$3"
+ lret=0
+
+ do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP ${connect_addr} 0 0
+ lret=$?
+ if [ $lret -ne 0 ]; then
+ ret=$lret
+ return
+ fi
+}
+
+run_remove_tests()
+{
+ listener_ns="$1"
+ connector_ns="$2"
+ connect_addr="$3"
+ rm_nr_ns1="$4"
+ rm_nr_ns2="$5"
+ lret=0
+
+ do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP ${connect_addr} ${rm_nr_ns1} ${rm_nr_ns2}
+ lret=$?
+ if [ $lret -ne 0 ]; then
+ ret=$lret
+ return
+ fi
+}
+
+chk_join_nr()
+{
+ local msg="$1"
+ local syn_nr=$2
+ local syn_ack_nr=$3
+ local ack_nr=$4
+ local count
+ local dump_stats
+
+ printf "%02u %-36s %s" "$TEST_COUNT" "$msg" "syn"
+ count=$(get_counter ${ns1} "MPTcpExtMPJoinSynRx")
+ if [ -z "$count" ]; then
+ echo -n "[skip]"
+ elif [ "$count" != "$syn_nr" ]; then
+ echo "[fail] got $count JOIN[s] syn expected $syn_nr"
+ ret=1
+ dump_stats=1
+ else
+ echo -n "[ ok ]"
+ fi
+
+ echo -n " - synack"
+ count=$(get_counter ${ns2} "MPTcpExtMPJoinSynAckRx")
+ if [ -z "$count" ]; then
+ echo -n "[skip]"
+ elif [ "$count" != "$syn_ack_nr" ]; then
+ echo "[fail] got $count JOIN[s] synack expected $syn_ack_nr"
+ ret=1
+ dump_stats=1
+ else
+ echo -n "[ ok ]"
+ fi
+
+ echo -n " - ack"
+ count=$(get_counter ${ns1} "MPTcpExtMPJoinAckRx")
+ if [ -z "$count" ]; then
+ echo "[skip]"
+ elif [ "$count" != "$ack_nr" ]; then
+ echo "[fail] got $count JOIN[s] ack expected $ack_nr"
+ ret=1
+ dump_stats=1
+ else
+ echo "[ ok ]"
+ fi
+ if [ "${dump_stats}" = 1 ]; then
+ echo Server ns stats
+ ip netns exec $ns1 nstat -as | grep MPTcp
+ echo Client ns stats
+ ip netns exec $ns2 nstat -as | grep MPTcp
+ fi
+}
+
+chk_add_nr()
+{
+ local add_nr=$1
+ local echo_nr=$2
+ local count
+ local dump_stats
+
+ printf "%-39s %s" " " "add"
+ count=$(get_counter ${ns2} "MPTcpExtAddAddr")
+ if [ -z "$count" ]; then
+ echo -n "[skip]"
+ elif [ "$count" != "$add_nr" ]; then
+ echo "[fail] got $count ADD_ADDR[s] expected $add_nr"
+ ret=1
+ dump_stats=1
+ else
+ echo -n "[ ok ]"
+ fi
+
+ echo -n " - echo "
+ count=$(get_counter ${ns1} "MPTcpExtEchoAdd")
+ if [ -z "$count" ]; then
+ echo "[skip]"
+ elif [ "$count" != "$echo_nr" ]; then
+ echo "[fail] got $count ADD_ADDR echo[s] expected $echo_nr"
+ ret=1
+ dump_stats=1
+ else
+ echo "[ ok ]"
+ fi
+
+ if [ "${dump_stats}" = 1 ]; then
+ echo Server ns stats
+ ip netns exec $ns1 nstat -as | grep MPTcp
+ echo Client ns stats
+ ip netns exec $ns2 nstat -as | grep MPTcp
+ fi
+}
+
+chk_rm_nr()
+{
+ local rm_addr_nr=$1
+ local rm_subflow_nr=$2
+ local count
+ local dump_stats
+
+ printf "%-39s %s" " " "rm "
+ count=$(get_counter ${ns1} "MPTcpExtRmAddr")
+ if [ -z "$count" ]; then
+ echo -n "[skip]"
+ elif [ "$count" != "$rm_addr_nr" ]; then
+ echo "[fail] got $count RM_ADDR[s] expected $rm_addr_nr"
+ ret=1
+ dump_stats=1
+ else
+ echo -n "[ ok ]"
+ fi
+
+ echo -n " - sf "
+ count=$(get_counter ${ns2} "MPTcpExtRmSubflow")
+ if [ -z "$count" ]; then
+ echo "[skip]"
+ elif [ "$count" != "$rm_subflow_nr" ]; then
+ echo "[fail] got $count RM_SUBFLOW[s] expected $rm_subflow_nr"
+ ret=1
+ dump_stats=1
+ else
+ echo "[ ok ]"
+ fi
+
+ if [ "${dump_stats}" = 1 ]; then
+ echo Server ns stats
+ ip netns exec $ns1 nstat -as | grep MPTcp
+ echo Client ns stats
+ ip netns exec $ns2 nstat -as | grep MPTcp
+ fi
+}
+
+sin=$(mktemp)
+sout=$(mktemp)
+cin=$(mktemp)
+cout=$(mktemp)
+init
+make_file "$cin" "client"
+make_file "$sin" "server"
+trap cleanup EXIT
+
+run_tests $ns1 $ns2 10.0.1.1
+chk_join_nr "no JOIN" "0" "0" "0"
+
+# subflow limted by client
+reset
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+run_tests $ns1 $ns2 10.0.1.1
+chk_join_nr "single subflow, limited by client" 0 0 0
+
+# subflow limted by server
+reset
+ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+run_tests $ns1 $ns2 10.0.1.1
+chk_join_nr "single subflow, limited by server" 1 1 0
+
+# subflow
+reset
+ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+run_tests $ns1 $ns2 10.0.1.1
+chk_join_nr "single subflow" 1 1 1
+
+# multiple subflows
+reset
+ip netns exec $ns1 ./pm_nl_ctl limits 0 2
+ip netns exec $ns2 ./pm_nl_ctl limits 0 2
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow
+run_tests $ns1 $ns2 10.0.1.1
+chk_join_nr "multiple subflows" 2 2 2
+
+# multiple subflows limited by serverf
+reset
+ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+ip netns exec $ns2 ./pm_nl_ctl limits 0 2
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow
+run_tests $ns1 $ns2 10.0.1.1
+chk_join_nr "multiple subflows, limited by server" 2 2 1
+
+# add_address, unused
+reset
+ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+run_tests $ns1 $ns2 10.0.1.1
+chk_join_nr "unused signal address" 0 0 0
+chk_add_nr 1 1
+
+# accept and use add_addr
+reset
+ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+run_tests $ns1 $ns2 10.0.1.1
+chk_join_nr "signal address" 1 1 1
+chk_add_nr 1 1
+
+# accept and use add_addr with an additional subflow
+# note: signal address in server ns and local addresses in client ns must
+# belong to different subnets or one of the listed local address could be
+# used for 'add_addr' subflow
+reset
+ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+ip netns exec $ns1 ./pm_nl_ctl limits 0 2
+ip netns exec $ns2 ./pm_nl_ctl limits 1 2
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+run_tests $ns1 $ns2 10.0.1.1
+chk_join_nr "subflow and signal" 2 2 2
+chk_add_nr 1 1
+
+# accept and use add_addr with additional subflows
+reset
+ip netns exec $ns1 ./pm_nl_ctl limits 0 3
+ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+ip netns exec $ns2 ./pm_nl_ctl limits 1 3
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.4.2 flags subflow
+run_tests $ns1 $ns2 10.0.1.1
+chk_join_nr "multiple subflows and signal" 3 3 3
+chk_add_nr 1 1
+
+# single subflow, remove
+reset
+ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+run_remove_tests $ns1 $ns2 10.0.1.1 0 1
+chk_join_nr "remove single subflow" 1 1 1
+chk_rm_nr 1 1
+
+# multiple subflows, remove
+reset
+ip netns exec $ns1 ./pm_nl_ctl limits 0 2
+ip netns exec $ns2 ./pm_nl_ctl limits 0 2
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+run_remove_tests $ns1 $ns2 10.0.1.1 0 2
+chk_join_nr "remove multiple subflows" 2 2 2
+chk_rm_nr 2 2
+
+# single address, remove
+reset
+ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+run_remove_tests $ns1 $ns2 10.0.1.1 1 0
+chk_join_nr "remove single address" 1 1 1
+chk_add_nr 1 1
+chk_rm_nr 0 0
+
+# subflow and signal, remove
+reset
+ip netns exec $ns1 ./pm_nl_ctl limits 0 2
+ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+ip netns exec $ns2 ./pm_nl_ctl limits 1 2
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+run_remove_tests $ns1 $ns2 10.0.1.1 1 1
+chk_join_nr "remove subflow and signal" 2 2 2
+chk_add_nr 1 1
+chk_rm_nr 1 1
+
+# subflows and signal, remove
+reset
+ip netns exec $ns1 ./pm_nl_ctl limits 0 3
+ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+ip netns exec $ns2 ./pm_nl_ctl limits 1 3
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.4.2 flags subflow
+run_remove_tests $ns1 $ns2 10.0.1.1 1 2
+chk_join_nr "remove subflows and signal" 3 3 3
+chk_add_nr 1 1
+chk_rm_nr 2 2
+
+# single subflow, syncookies
+reset_with_cookies
+ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+run_tests $ns1 $ns2 10.0.1.1
+chk_join_nr "single subflow with syn cookies" 1 1 1
+
+# multiple subflows with syn cookies
+reset_with_cookies
+ip netns exec $ns1 ./pm_nl_ctl limits 0 2
+ip netns exec $ns2 ./pm_nl_ctl limits 0 2
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow
+run_tests $ns1 $ns2 10.0.1.1
+chk_join_nr "multiple subflows with syn cookies" 2 2 2
+
+# multiple subflows limited by server
+reset_with_cookies
+ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+ip netns exec $ns2 ./pm_nl_ctl limits 0 2
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow
+run_tests $ns1 $ns2 10.0.1.1
+chk_join_nr "subflows limited by server w cookies" 2 2 1
+
+# test signal address with cookies
+reset_with_cookies
+ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+run_tests $ns1 $ns2 10.0.1.1
+chk_join_nr "signal address with syn cookies" 1 1 1
+chk_add_nr 1 1
+
+# test cookie with subflow and signal
+reset_with_cookies
+ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+ip netns exec $ns1 ./pm_nl_ctl limits 0 2
+ip netns exec $ns2 ./pm_nl_ctl limits 1 2
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+run_tests $ns1 $ns2 10.0.1.1
+chk_join_nr "subflow and signal w cookies" 2 2 2
+chk_add_nr 1 1
+
+# accept and use add_addr with additional subflows
+reset_with_cookies
+ip netns exec $ns1 ./pm_nl_ctl limits 0 3
+ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+ip netns exec $ns2 ./pm_nl_ctl limits 1 3
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.4.2 flags subflow
+run_tests $ns1 $ns2 10.0.1.1
+chk_join_nr "subflows and signal w. cookies" 3 3 3
+chk_add_nr 1 1
+
+exit $ret
diff --git a/tools/testing/selftests/net/mptcp/mptcp_lib.sh b/tools/testing/selftests/net/mptcp/mptcp_lib.sh
new file mode 100644
index 000000000..f32045b23
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/mptcp_lib.sh
@@ -0,0 +1,104 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+readonly KSFT_FAIL=1
+readonly KSFT_SKIP=4
+
+# SELFTESTS_MPTCP_LIB_EXPECT_ALL_FEATURES env var can be set when validating all
+# features using the last version of the kernel and the selftests to make sure
+# a test is not being skipped by mistake.
+mptcp_lib_expect_all_features() {
+ [ "${SELFTESTS_MPTCP_LIB_EXPECT_ALL_FEATURES:-}" = "1" ]
+}
+
+# $1: msg
+mptcp_lib_fail_if_expected_feature() {
+ if mptcp_lib_expect_all_features; then
+ echo "ERROR: missing feature: ${*}"
+ exit ${KSFT_FAIL}
+ fi
+
+ return 1
+}
+
+# $1: file
+mptcp_lib_has_file() {
+ local f="${1}"
+
+ if [ -f "${f}" ]; then
+ return 0
+ fi
+
+ mptcp_lib_fail_if_expected_feature "${f} file not found"
+}
+
+mptcp_lib_check_mptcp() {
+ if ! mptcp_lib_has_file "/proc/sys/net/mptcp/enabled"; then
+ echo "SKIP: MPTCP support is not available"
+ exit ${KSFT_SKIP}
+ fi
+}
+
+mptcp_lib_check_kallsyms() {
+ if ! mptcp_lib_has_file "/proc/kallsyms"; then
+ echo "SKIP: CONFIG_KALLSYMS is missing"
+ exit ${KSFT_SKIP}
+ fi
+}
+
+# Internal: use mptcp_lib_kallsyms_has() instead
+__mptcp_lib_kallsyms_has() {
+ local sym="${1}"
+
+ mptcp_lib_check_kallsyms
+
+ grep -q " ${sym}" /proc/kallsyms
+}
+
+# $1: part of a symbol to look at, add '$' at the end for full name
+mptcp_lib_kallsyms_has() {
+ local sym="${1}"
+
+ if __mptcp_lib_kallsyms_has "${sym}"; then
+ return 0
+ fi
+
+ mptcp_lib_fail_if_expected_feature "${sym} symbol not found"
+}
+
+# $1: part of a symbol to look at, add '$' at the end for full name
+mptcp_lib_kallsyms_doesnt_have() {
+ local sym="${1}"
+
+ if ! __mptcp_lib_kallsyms_has "${sym}"; then
+ return 0
+ fi
+
+ mptcp_lib_fail_if_expected_feature "${sym} symbol has been found"
+}
+
+# !!!AVOID USING THIS!!!
+# Features might not land in the expected version and features can be backported
+#
+# $1: kernel version, e.g. 6.3
+mptcp_lib_kversion_ge() {
+ local exp_maj="${1%.*}"
+ local exp_min="${1#*.}"
+ local v maj min
+
+ # If the kernel has backported features, set this env var to 1:
+ if [ "${SELFTESTS_MPTCP_LIB_NO_KVERSION_CHECK:-}" = "1" ]; then
+ return 0
+ fi
+
+ v=$(uname -r | cut -d'.' -f1,2)
+ maj=${v%.*}
+ min=${v#*.}
+
+ if [ "${maj}" -gt "${exp_maj}" ] ||
+ { [ "${maj}" -eq "${exp_maj}" ] && [ "${min}" -ge "${exp_min}" ]; }; then
+ return 0
+ fi
+
+ mptcp_lib_fail_if_expected_feature "kernel version ${1} lower than ${v}"
+}
diff --git a/tools/testing/selftests/net/mptcp/pm_netlink.sh b/tools/testing/selftests/net/mptcp/pm_netlink.sh
new file mode 100755
index 000000000..fff6f74eb
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/pm_netlink.sh
@@ -0,0 +1,136 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+. "$(dirname "${0}")/mptcp_lib.sh"
+
+ksft_skip=4
+ret=0
+
+usage() {
+ echo "Usage: $0 [ -h ]"
+}
+
+
+while getopts "$optstring" option;do
+ case "$option" in
+ "h")
+ usage $0
+ exit 0
+ ;;
+ "?")
+ usage $0
+ exit 1
+ ;;
+ esac
+done
+
+sec=$(date +%s)
+rndh=$(printf %x $sec)-$(mktemp -u XXXXXX)
+ns1="ns1-$rndh"
+err=$(mktemp)
+ret=0
+
+cleanup()
+{
+ rm -f $err
+ ip netns del $ns1
+}
+
+mptcp_lib_check_mptcp
+
+ip -Version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+
+trap cleanup EXIT
+
+ip netns add $ns1 || exit $ksft_skip
+ip -net $ns1 link set lo up
+ip netns exec $ns1 sysctl -q net.mptcp.enabled=1
+
+check()
+{
+ local cmd="$1"
+ local expected="$2"
+ local msg="$3"
+ local out=`$cmd 2>$err`
+ local cmd_ret=$?
+
+ printf "%-50s %s" "$msg"
+ if [ $cmd_ret -ne 0 ]; then
+ echo "[FAIL] command execution '$cmd' stderr "
+ cat $err
+ ret=1
+ elif [ "$out" = "$expected" ]; then
+ echo "[ OK ]"
+ else
+ echo -n "[FAIL] "
+ echo "expected '$expected' got '$out'"
+ ret=1
+ fi
+}
+
+check "ip netns exec $ns1 ./pm_nl_ctl dump" "" "defaults addr list"
+
+default_limits="$(ip netns exec $ns1 ./pm_nl_ctl limits)"
+if mptcp_lib_expect_all_features; then
+ check "ip netns exec $ns1 ./pm_nl_ctl limits" "accept 0
+subflows 0" "defaults limits"
+fi
+
+ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.1
+ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.2 flags subflow dev lo
+ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.3 flags signal,backup
+check "ip netns exec $ns1 ./pm_nl_ctl get 1" "id 1 flags 10.0.1.1" "simple add/get addr"
+
+check "ip netns exec $ns1 ./pm_nl_ctl dump" \
+"id 1 flags 10.0.1.1
+id 2 flags subflow dev lo 10.0.1.2
+id 3 flags signal,backup 10.0.1.3" "dump addrs"
+
+ip netns exec $ns1 ./pm_nl_ctl del 2
+check "ip netns exec $ns1 ./pm_nl_ctl get 2" "" "simple del addr"
+check "ip netns exec $ns1 ./pm_nl_ctl dump" \
+"id 1 flags 10.0.1.1
+id 3 flags signal,backup 10.0.1.3" "dump addrs after del"
+
+ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.3
+check "ip netns exec $ns1 ./pm_nl_ctl get 4" "" "duplicate addr"
+
+ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.4 id 10 flags signal
+check "ip netns exec $ns1 ./pm_nl_ctl get 4" "id 4 flags signal 10.0.1.4" "id addr increment"
+
+for i in `seq 5 9`; do
+ ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.$i flags signal >/dev/null 2>&1
+done
+check "ip netns exec $ns1 ./pm_nl_ctl get 9" "id 9 flags signal 10.0.1.9" "hard addr limit"
+check "ip netns exec $ns1 ./pm_nl_ctl get 10" "" "above hard addr limit"
+
+for i in `seq 9 256`; do
+ ip netns exec $ns1 ./pm_nl_ctl del $i
+ ip netns exec $ns1 ./pm_nl_ctl add 10.0.0.9
+done
+check "ip netns exec $ns1 ./pm_nl_ctl dump" "id 1 flags 10.0.1.1
+id 3 flags signal,backup 10.0.1.3
+id 4 flags signal 10.0.1.4
+id 5 flags signal 10.0.1.5
+id 6 flags signal 10.0.1.6
+id 7 flags signal 10.0.1.7
+id 8 flags signal 10.0.1.8" "id limit"
+
+ip netns exec $ns1 ./pm_nl_ctl flush
+check "ip netns exec $ns1 ./pm_nl_ctl dump" "" "flush addrs"
+
+ip netns exec $ns1 ./pm_nl_ctl limits 9 1
+check "ip netns exec $ns1 ./pm_nl_ctl limits" "$default_limits" "rcv addrs above hard limit"
+
+ip netns exec $ns1 ./pm_nl_ctl limits 1 9
+check "ip netns exec $ns1 ./pm_nl_ctl limits" "$default_limits" "subflows above hard limit"
+
+ip netns exec $ns1 ./pm_nl_ctl limits 8 8
+check "ip netns exec $ns1 ./pm_nl_ctl limits" "accept 8
+subflows 8" "set limits"
+
+exit $ret
diff --git a/tools/testing/selftests/net/mptcp/pm_nl_ctl.c b/tools/testing/selftests/net/mptcp/pm_nl_ctl.c
new file mode 100644
index 000000000..b24a2f17d
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/pm_nl_ctl.c
@@ -0,0 +1,616 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <errno.h>
+#include <error.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/socket.h>
+#include <sys/types.h>
+
+#include <arpa/inet.h>
+#include <net/if.h>
+
+#include <linux/rtnetlink.h>
+#include <linux/genetlink.h>
+
+#include "linux/mptcp.h"
+
+#ifndef MPTCP_PM_NAME
+#define MPTCP_PM_NAME "mptcp_pm"
+#endif
+
+static void syntax(char *argv[])
+{
+ fprintf(stderr, "%s add|get|del|flush|dump|accept [<args>]\n", argv[0]);
+ fprintf(stderr, "\tadd [flags signal|subflow|backup] [id <nr>] [dev <name>] <ip>\n");
+ fprintf(stderr, "\tdel <id>\n");
+ fprintf(stderr, "\tget <id>\n");
+ fprintf(stderr, "\tflush\n");
+ fprintf(stderr, "\tdump\n");
+ fprintf(stderr, "\tlimits [<rcv addr max> <subflow max>]\n");
+ exit(0);
+}
+
+static int init_genl_req(char *data, int family, int cmd, int version)
+{
+ struct nlmsghdr *nh = (void *)data;
+ struct genlmsghdr *gh;
+ int off = 0;
+
+ nh->nlmsg_type = family;
+ nh->nlmsg_flags = NLM_F_REQUEST;
+ nh->nlmsg_len = NLMSG_LENGTH(GENL_HDRLEN);
+ off += NLMSG_ALIGN(sizeof(*nh));
+
+ gh = (void *)(data + off);
+ gh->cmd = cmd;
+ gh->version = version;
+ off += NLMSG_ALIGN(sizeof(*gh));
+ return off;
+}
+
+static void nl_error(struct nlmsghdr *nh)
+{
+ struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nh);
+ int len = nh->nlmsg_len - sizeof(*nh);
+ uint32_t off;
+
+ if (len < sizeof(struct nlmsgerr))
+ error(1, 0, "netlink error message truncated %d min %ld", len,
+ sizeof(struct nlmsgerr));
+
+ if (!err->error) {
+ /* check messages from kernel */
+ struct rtattr *attrs = (struct rtattr *)NLMSG_DATA(nh);
+
+ while (RTA_OK(attrs, len)) {
+ if (attrs->rta_type == NLMSGERR_ATTR_MSG)
+ fprintf(stderr, "netlink ext ack msg: %s\n",
+ (char *)RTA_DATA(attrs));
+ if (attrs->rta_type == NLMSGERR_ATTR_OFFS) {
+ memcpy(&off, RTA_DATA(attrs), 4);
+ fprintf(stderr, "netlink err off %d\n",
+ (int)off);
+ }
+ attrs = RTA_NEXT(attrs, len);
+ }
+ } else {
+ fprintf(stderr, "netlink error %d", err->error);
+ }
+}
+
+/* do a netlink command and, if max > 0, fetch the reply */
+static int do_nl_req(int fd, struct nlmsghdr *nh, int len, int max)
+{
+ struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
+ socklen_t addr_len;
+ void *data = nh;
+ int rem, ret;
+ int err = 0;
+
+ nh->nlmsg_len = len;
+ ret = sendto(fd, data, len, 0, (void *)&nladdr, sizeof(nladdr));
+ if (ret != len)
+ error(1, errno, "send netlink: %uB != %uB\n", ret, len);
+ if (max == 0)
+ return 0;
+
+ addr_len = sizeof(nladdr);
+ rem = ret = recvfrom(fd, data, max, 0, (void *)&nladdr, &addr_len);
+ if (ret < 0)
+ error(1, errno, "recv netlink: %uB\n", ret);
+
+ /* Beware: the NLMSG_NEXT macro updates the 'rem' argument */
+ for (; NLMSG_OK(nh, rem); nh = NLMSG_NEXT(nh, rem)) {
+ if (nh->nlmsg_type == NLMSG_ERROR) {
+ nl_error(nh);
+ err = 1;
+ }
+ }
+ if (err)
+ error(1, 0, "bailing out due to netlink error[s]");
+ return ret;
+}
+
+static int genl_parse_getfamily(struct nlmsghdr *nlh)
+{
+ struct genlmsghdr *ghdr = NLMSG_DATA(nlh);
+ int len = nlh->nlmsg_len;
+ struct rtattr *attrs;
+
+ if (nlh->nlmsg_type != GENL_ID_CTRL)
+ error(1, errno, "Not a controller message, len=%d type=0x%x\n",
+ nlh->nlmsg_len, nlh->nlmsg_type);
+
+ len -= NLMSG_LENGTH(GENL_HDRLEN);
+
+ if (len < 0)
+ error(1, errno, "wrong controller message len %d\n", len);
+
+ if (ghdr->cmd != CTRL_CMD_NEWFAMILY)
+ error(1, errno, "Unknown controller command %d\n", ghdr->cmd);
+
+ attrs = (struct rtattr *) ((char *) ghdr + GENL_HDRLEN);
+ while (RTA_OK(attrs, len)) {
+ if (attrs->rta_type == CTRL_ATTR_FAMILY_ID)
+ return *(__u16 *)RTA_DATA(attrs);
+ attrs = RTA_NEXT(attrs, len);
+ }
+
+ error(1, errno, "can't find CTRL_ATTR_FAMILY_ID attr");
+ return -1;
+}
+
+static int resolve_mptcp_pm_netlink(int fd)
+{
+ char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+ NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+ 1024];
+ struct nlmsghdr *nh;
+ struct rtattr *rta;
+ int namelen;
+ int off = 0;
+
+ memset(data, 0, sizeof(data));
+ nh = (void *)data;
+ off = init_genl_req(data, GENL_ID_CTRL, CTRL_CMD_GETFAMILY, 0);
+
+ rta = (void *)(data + off);
+ namelen = strlen(MPTCP_PM_NAME) + 1;
+ rta->rta_type = CTRL_ATTR_FAMILY_NAME;
+ rta->rta_len = RTA_LENGTH(namelen);
+ memcpy(RTA_DATA(rta), MPTCP_PM_NAME, namelen);
+ off += NLMSG_ALIGN(rta->rta_len);
+
+ do_nl_req(fd, nh, off, sizeof(data));
+ return genl_parse_getfamily((void *)data);
+}
+
+int add_addr(int fd, int pm_family, int argc, char *argv[])
+{
+ char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+ NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+ 1024];
+ struct rtattr *rta, *nest;
+ struct nlmsghdr *nh;
+ u_int16_t family;
+ u_int32_t flags;
+ int nest_start;
+ u_int8_t id;
+ int off = 0;
+ int arg;
+
+ memset(data, 0, sizeof(data));
+ nh = (void *)data;
+ off = init_genl_req(data, pm_family, MPTCP_PM_CMD_ADD_ADDR,
+ MPTCP_PM_VER);
+
+ if (argc < 3)
+ syntax(argv);
+
+ nest_start = off;
+ nest = (void *)(data + off);
+ nest->rta_type = NLA_F_NESTED | MPTCP_PM_ATTR_ADDR;
+ nest->rta_len = RTA_LENGTH(0);
+ off += NLMSG_ALIGN(nest->rta_len);
+
+ /* addr data */
+ rta = (void *)(data + off);
+ if (inet_pton(AF_INET, argv[2], RTA_DATA(rta))) {
+ family = AF_INET;
+ rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR4;
+ rta->rta_len = RTA_LENGTH(4);
+ } else if (inet_pton(AF_INET6, argv[2], RTA_DATA(rta))) {
+ family = AF_INET6;
+ rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR6;
+ rta->rta_len = RTA_LENGTH(16);
+ } else
+ error(1, errno, "can't parse ip %s", argv[2]);
+ off += NLMSG_ALIGN(rta->rta_len);
+
+ /* family */
+ rta = (void *)(data + off);
+ rta->rta_type = MPTCP_PM_ADDR_ATTR_FAMILY;
+ rta->rta_len = RTA_LENGTH(2);
+ memcpy(RTA_DATA(rta), &family, 2);
+ off += NLMSG_ALIGN(rta->rta_len);
+
+ for (arg = 3; arg < argc; arg++) {
+ if (!strcmp(argv[arg], "flags")) {
+ char *tok, *str;
+
+ /* flags */
+ flags = 0;
+ if (++arg >= argc)
+ error(1, 0, " missing flags value");
+
+ /* do not support flag list yet */
+ for (str = argv[arg]; (tok = strtok(str, ","));
+ str = NULL) {
+ if (!strcmp(tok, "subflow"))
+ flags |= MPTCP_PM_ADDR_FLAG_SUBFLOW;
+ else if (!strcmp(tok, "signal"))
+ flags |= MPTCP_PM_ADDR_FLAG_SIGNAL;
+ else if (!strcmp(tok, "backup"))
+ flags |= MPTCP_PM_ADDR_FLAG_BACKUP;
+ else
+ error(1, errno,
+ "unknown flag %s", argv[arg]);
+ }
+
+ rta = (void *)(data + off);
+ rta->rta_type = MPTCP_PM_ADDR_ATTR_FLAGS;
+ rta->rta_len = RTA_LENGTH(4);
+ memcpy(RTA_DATA(rta), &flags, 4);
+ off += NLMSG_ALIGN(rta->rta_len);
+ } else if (!strcmp(argv[arg], "id")) {
+ if (++arg >= argc)
+ error(1, 0, " missing id value");
+
+ id = atoi(argv[arg]);
+ rta = (void *)(data + off);
+ rta->rta_type = MPTCP_PM_ADDR_ATTR_ID;
+ rta->rta_len = RTA_LENGTH(1);
+ memcpy(RTA_DATA(rta), &id, 1);
+ off += NLMSG_ALIGN(rta->rta_len);
+ } else if (!strcmp(argv[arg], "dev")) {
+ int32_t ifindex;
+
+ if (++arg >= argc)
+ error(1, 0, " missing dev name");
+
+ ifindex = if_nametoindex(argv[arg]);
+ if (!ifindex)
+ error(1, errno, "unknown device %s", argv[arg]);
+
+ rta = (void *)(data + off);
+ rta->rta_type = MPTCP_PM_ADDR_ATTR_IF_IDX;
+ rta->rta_len = RTA_LENGTH(4);
+ memcpy(RTA_DATA(rta), &ifindex, 4);
+ off += NLMSG_ALIGN(rta->rta_len);
+ } else
+ error(1, 0, "unknown keyword %s", argv[arg]);
+ }
+ nest->rta_len = off - nest_start;
+
+ do_nl_req(fd, nh, off, 0);
+ return 0;
+}
+
+int del_addr(int fd, int pm_family, int argc, char *argv[])
+{
+ char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+ NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+ 1024];
+ struct rtattr *rta, *nest;
+ struct nlmsghdr *nh;
+ int nest_start;
+ u_int8_t id;
+ int off = 0;
+
+ memset(data, 0, sizeof(data));
+ nh = (void *)data;
+ off = init_genl_req(data, pm_family, MPTCP_PM_CMD_DEL_ADDR,
+ MPTCP_PM_VER);
+
+ /* the only argument is the address id */
+ if (argc != 3)
+ syntax(argv);
+
+ id = atoi(argv[2]);
+
+ nest_start = off;
+ nest = (void *)(data + off);
+ nest->rta_type = NLA_F_NESTED | MPTCP_PM_ATTR_ADDR;
+ nest->rta_len = RTA_LENGTH(0);
+ off += NLMSG_ALIGN(nest->rta_len);
+
+ /* build a dummy addr with only the ID set */
+ rta = (void *)(data + off);
+ rta->rta_type = MPTCP_PM_ADDR_ATTR_ID;
+ rta->rta_len = RTA_LENGTH(1);
+ memcpy(RTA_DATA(rta), &id, 1);
+ off += NLMSG_ALIGN(rta->rta_len);
+ nest->rta_len = off - nest_start;
+
+ do_nl_req(fd, nh, off, 0);
+ return 0;
+}
+
+static void print_addr(struct rtattr *attrs, int len)
+{
+ uint16_t family = 0;
+ char str[1024];
+ uint32_t flags;
+ uint8_t id;
+
+ while (RTA_OK(attrs, len)) {
+ if (attrs->rta_type == MPTCP_PM_ADDR_ATTR_FAMILY)
+ memcpy(&family, RTA_DATA(attrs), 2);
+ if (attrs->rta_type == MPTCP_PM_ADDR_ATTR_ADDR4) {
+ if (family != AF_INET)
+ error(1, errno, "wrong IP (v4) for family %d",
+ family);
+ inet_ntop(AF_INET, RTA_DATA(attrs), str, sizeof(str));
+ printf("%s", str);
+ }
+ if (attrs->rta_type == MPTCP_PM_ADDR_ATTR_ADDR6) {
+ if (family != AF_INET6)
+ error(1, errno, "wrong IP (v6) for family %d",
+ family);
+ inet_ntop(AF_INET6, RTA_DATA(attrs), str, sizeof(str));
+ printf("%s", str);
+ }
+ if (attrs->rta_type == MPTCP_PM_ADDR_ATTR_ID) {
+ memcpy(&id, RTA_DATA(attrs), 1);
+ printf("id %d ", id);
+ }
+ if (attrs->rta_type == MPTCP_PM_ADDR_ATTR_FLAGS) {
+ memcpy(&flags, RTA_DATA(attrs), 4);
+
+ printf("flags ");
+ if (flags & MPTCP_PM_ADDR_FLAG_SIGNAL) {
+ printf("signal");
+ flags &= ~MPTCP_PM_ADDR_FLAG_SIGNAL;
+ if (flags)
+ printf(",");
+ }
+
+ if (flags & MPTCP_PM_ADDR_FLAG_SUBFLOW) {
+ printf("subflow");
+ flags &= ~MPTCP_PM_ADDR_FLAG_SUBFLOW;
+ if (flags)
+ printf(",");
+ }
+
+ if (flags & MPTCP_PM_ADDR_FLAG_BACKUP) {
+ printf("backup");
+ flags &= ~MPTCP_PM_ADDR_FLAG_BACKUP;
+ if (flags)
+ printf(",");
+ }
+
+ /* bump unknown flags, if any */
+ if (flags)
+ printf("0x%x", flags);
+ printf(" ");
+ }
+ if (attrs->rta_type == MPTCP_PM_ADDR_ATTR_IF_IDX) {
+ char name[IF_NAMESIZE], *ret;
+ int32_t ifindex;
+
+ memcpy(&ifindex, RTA_DATA(attrs), 4);
+ ret = if_indextoname(ifindex, name);
+ if (ret)
+ printf("dev %s ", ret);
+ else
+ printf("dev unknown/%d", ifindex);
+ }
+
+ attrs = RTA_NEXT(attrs, len);
+ }
+ printf("\n");
+}
+
+static void print_addrs(struct nlmsghdr *nh, int pm_family, int total_len)
+{
+ struct rtattr *attrs;
+
+ for (; NLMSG_OK(nh, total_len); nh = NLMSG_NEXT(nh, total_len)) {
+ int len = nh->nlmsg_len;
+
+ if (nh->nlmsg_type == NLMSG_DONE)
+ break;
+ if (nh->nlmsg_type == NLMSG_ERROR)
+ nl_error(nh);
+ if (nh->nlmsg_type != pm_family)
+ continue;
+
+ len -= NLMSG_LENGTH(GENL_HDRLEN);
+ attrs = (struct rtattr *) ((char *) NLMSG_DATA(nh) +
+ GENL_HDRLEN);
+ while (RTA_OK(attrs, len)) {
+ if (attrs->rta_type ==
+ (MPTCP_PM_ATTR_ADDR | NLA_F_NESTED))
+ print_addr((void *)RTA_DATA(attrs),
+ attrs->rta_len);
+ attrs = RTA_NEXT(attrs, len);
+ }
+ }
+}
+
+int get_addr(int fd, int pm_family, int argc, char *argv[])
+{
+ char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+ NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+ 1024];
+ struct rtattr *rta, *nest;
+ struct nlmsghdr *nh;
+ int nest_start;
+ u_int8_t id;
+ int off = 0;
+
+ memset(data, 0, sizeof(data));
+ nh = (void *)data;
+ off = init_genl_req(data, pm_family, MPTCP_PM_CMD_GET_ADDR,
+ MPTCP_PM_VER);
+
+ /* the only argument is the address id */
+ if (argc != 3)
+ syntax(argv);
+
+ id = atoi(argv[2]);
+
+ nest_start = off;
+ nest = (void *)(data + off);
+ nest->rta_type = NLA_F_NESTED | MPTCP_PM_ATTR_ADDR;
+ nest->rta_len = RTA_LENGTH(0);
+ off += NLMSG_ALIGN(nest->rta_len);
+
+ /* build a dummy addr with only the ID set */
+ rta = (void *)(data + off);
+ rta->rta_type = MPTCP_PM_ADDR_ATTR_ID;
+ rta->rta_len = RTA_LENGTH(1);
+ memcpy(RTA_DATA(rta), &id, 1);
+ off += NLMSG_ALIGN(rta->rta_len);
+ nest->rta_len = off - nest_start;
+
+ print_addrs(nh, pm_family, do_nl_req(fd, nh, off, sizeof(data)));
+ return 0;
+}
+
+int dump_addrs(int fd, int pm_family, int argc, char *argv[])
+{
+ char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+ NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+ 1024];
+ pid_t pid = getpid();
+ struct nlmsghdr *nh;
+ int off = 0;
+
+ memset(data, 0, sizeof(data));
+ nh = (void *)data;
+ off = init_genl_req(data, pm_family, MPTCP_PM_CMD_GET_ADDR,
+ MPTCP_PM_VER);
+ nh->nlmsg_flags |= NLM_F_DUMP;
+ nh->nlmsg_seq = 1;
+ nh->nlmsg_pid = pid;
+ nh->nlmsg_len = off;
+
+ print_addrs(nh, pm_family, do_nl_req(fd, nh, off, sizeof(data)));
+ return 0;
+}
+
+int flush_addrs(int fd, int pm_family, int argc, char *argv[])
+{
+ char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+ NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+ 1024];
+ struct nlmsghdr *nh;
+ int off = 0;
+
+ memset(data, 0, sizeof(data));
+ nh = (void *)data;
+ off = init_genl_req(data, pm_family, MPTCP_PM_CMD_FLUSH_ADDRS,
+ MPTCP_PM_VER);
+
+ do_nl_req(fd, nh, off, 0);
+ return 0;
+}
+
+static void print_limits(struct nlmsghdr *nh, int pm_family, int total_len)
+{
+ struct rtattr *attrs;
+ uint32_t max;
+
+ for (; NLMSG_OK(nh, total_len); nh = NLMSG_NEXT(nh, total_len)) {
+ int len = nh->nlmsg_len;
+
+ if (nh->nlmsg_type == NLMSG_DONE)
+ break;
+ if (nh->nlmsg_type == NLMSG_ERROR)
+ nl_error(nh);
+ if (nh->nlmsg_type != pm_family)
+ continue;
+
+ len -= NLMSG_LENGTH(GENL_HDRLEN);
+ attrs = (struct rtattr *) ((char *) NLMSG_DATA(nh) +
+ GENL_HDRLEN);
+ while (RTA_OK(attrs, len)) {
+ int type = attrs->rta_type;
+
+ if (type != MPTCP_PM_ATTR_RCV_ADD_ADDRS &&
+ type != MPTCP_PM_ATTR_SUBFLOWS)
+ goto next;
+
+ memcpy(&max, RTA_DATA(attrs), 4);
+ printf("%s %u\n", type == MPTCP_PM_ATTR_SUBFLOWS ?
+ "subflows" : "accept", max);
+
+next:
+ attrs = RTA_NEXT(attrs, len);
+ }
+ }
+}
+
+int get_set_limits(int fd, int pm_family, int argc, char *argv[])
+{
+ char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+ NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+ 1024];
+ uint32_t rcv_addr = 0, subflows = 0;
+ int cmd, len = sizeof(data);
+ struct nlmsghdr *nh;
+ int off = 0;
+
+ /* limit */
+ if (argc == 4) {
+ rcv_addr = atoi(argv[2]);
+ subflows = atoi(argv[3]);
+ cmd = MPTCP_PM_CMD_SET_LIMITS;
+ } else {
+ cmd = MPTCP_PM_CMD_GET_LIMITS;
+ }
+
+ memset(data, 0, sizeof(data));
+ nh = (void *)data;
+ off = init_genl_req(data, pm_family, cmd, MPTCP_PM_VER);
+
+ /* limit */
+ if (cmd == MPTCP_PM_CMD_SET_LIMITS) {
+ struct rtattr *rta = (void *)(data + off);
+
+ rta->rta_type = MPTCP_PM_ATTR_RCV_ADD_ADDRS;
+ rta->rta_len = RTA_LENGTH(4);
+ memcpy(RTA_DATA(rta), &rcv_addr, 4);
+ off += NLMSG_ALIGN(rta->rta_len);
+
+ rta = (void *)(data + off);
+ rta->rta_type = MPTCP_PM_ATTR_SUBFLOWS;
+ rta->rta_len = RTA_LENGTH(4);
+ memcpy(RTA_DATA(rta), &subflows, 4);
+ off += NLMSG_ALIGN(rta->rta_len);
+
+ /* do not expect a reply */
+ len = 0;
+ }
+
+ len = do_nl_req(fd, nh, off, len);
+ if (cmd == MPTCP_PM_CMD_GET_LIMITS)
+ print_limits(nh, pm_family, len);
+ return 0;
+}
+
+int main(int argc, char *argv[])
+{
+ int fd, pm_family;
+
+ if (argc < 2)
+ syntax(argv);
+
+ fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
+ if (fd == -1)
+ error(1, errno, "socket netlink");
+
+ pm_family = resolve_mptcp_pm_netlink(fd);
+
+ if (!strcmp(argv[1], "add"))
+ return add_addr(fd, pm_family, argc, argv);
+ else if (!strcmp(argv[1], "del"))
+ return del_addr(fd, pm_family, argc, argv);
+ else if (!strcmp(argv[1], "flush"))
+ return flush_addrs(fd, pm_family, argc, argv);
+ else if (!strcmp(argv[1], "get"))
+ return get_addr(fd, pm_family, argc, argv);
+ else if (!strcmp(argv[1], "dump"))
+ return dump_addrs(fd, pm_family, argc, argv);
+ else if (!strcmp(argv[1], "limits"))
+ return get_set_limits(fd, pm_family, argc, argv);
+
+ fprintf(stderr, "unknown sub-command: %s", argv[1]);
+ syntax(argv);
+ return 0;
+}
diff --git a/tools/testing/selftests/net/mptcp/settings b/tools/testing/selftests/net/mptcp/settings
new file mode 100644
index 000000000..026384c18
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/settings
@@ -0,0 +1 @@
+timeout=450
diff --git a/tools/testing/selftests/net/mptcp/simult_flows.sh b/tools/testing/selftests/net/mptcp/simult_flows.sh
new file mode 100755
index 000000000..b51afba24
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/simult_flows.sh
@@ -0,0 +1,297 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+. "$(dirname "${0}")/mptcp_lib.sh"
+
+rndh=$(printf %x $sec)-$(mktemp -u XXXXXX)
+ns1="ns1-$rndh"
+ns2="ns2-$rndh"
+ns3="ns3-$rndh"
+capture=false
+ksft_skip=4
+timeout=30
+test_cnt=1
+ret=0
+bail=0
+
+usage() {
+ echo "Usage: $0 [ -b ] [ -c ] [ -d ]"
+ echo -e "\t-b: bail out after first error, otherwise runs al testcases"
+ echo -e "\t-c: capture packets for each test using tcpdump (default: no capture)"
+ echo -e "\t-d: debug this script"
+}
+
+cleanup()
+{
+ rm -f "$cout" "$sout"
+ rm -f "$large" "$small"
+ rm -f "$capout"
+
+ local netns
+ for netns in "$ns1" "$ns2" "$ns3";do
+ ip netns del $netns
+ done
+}
+
+mptcp_lib_check_mptcp
+
+ip -Version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+
+# "$ns1" ns2 ns3
+# ns1eth1 ns2eth1 ns2eth3 ns3eth1
+# netem
+# ns1eth2 ns2eth2
+# netem
+
+setup()
+{
+ large=$(mktemp)
+ small=$(mktemp)
+ sout=$(mktemp)
+ cout=$(mktemp)
+ capout=$(mktemp)
+ size=$((2048 * 4096))
+ dd if=/dev/zero of=$small bs=4096 count=20 >/dev/null 2>&1
+ dd if=/dev/zero of=$large bs=4096 count=$((size / 4096)) >/dev/null 2>&1
+
+ trap cleanup EXIT
+
+ for i in "$ns1" "$ns2" "$ns3";do
+ ip netns add $i || exit $ksft_skip
+ ip -net $i link set lo up
+ done
+
+ ip link add ns1eth1 netns "$ns1" type veth peer name ns2eth1 netns "$ns2"
+ ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth2 netns "$ns2"
+ ip link add ns2eth3 netns "$ns2" type veth peer name ns3eth1 netns "$ns3"
+
+ ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth1
+ ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth1 nodad
+ ip -net "$ns1" link set ns1eth1 up mtu 1500
+ ip -net "$ns1" route add default via 10.0.1.2
+ ip -net "$ns1" route add default via dead:beef:1::2
+
+ ip -net "$ns1" addr add 10.0.2.1/24 dev ns1eth2
+ ip -net "$ns1" addr add dead:beef:2::1/64 dev ns1eth2 nodad
+ ip -net "$ns1" link set ns1eth2 up mtu 1500
+ ip -net "$ns1" route add default via 10.0.2.2 metric 101
+ ip -net "$ns1" route add default via dead:beef:2::2 metric 101
+
+ ip netns exec "$ns1" ./pm_nl_ctl limits 1 1
+ ip netns exec "$ns1" ./pm_nl_ctl add 10.0.2.1 dev ns1eth2 flags subflow
+ ip netns exec "$ns1" sysctl -q net.ipv4.conf.all.rp_filter=0
+
+ ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1
+ ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad
+ ip -net "$ns2" link set ns2eth1 up mtu 1500
+
+ ip -net "$ns2" addr add 10.0.2.2/24 dev ns2eth2
+ ip -net "$ns2" addr add dead:beef:2::2/64 dev ns2eth2 nodad
+ ip -net "$ns2" link set ns2eth2 up mtu 1500
+
+ ip -net "$ns2" addr add 10.0.3.2/24 dev ns2eth3
+ ip -net "$ns2" addr add dead:beef:3::2/64 dev ns2eth3 nodad
+ ip -net "$ns2" link set ns2eth3 up mtu 1500
+ ip netns exec "$ns2" sysctl -q net.ipv4.ip_forward=1
+ ip netns exec "$ns2" sysctl -q net.ipv6.conf.all.forwarding=1
+
+ ip -net "$ns3" addr add 10.0.3.3/24 dev ns3eth1
+ ip -net "$ns3" addr add dead:beef:3::3/64 dev ns3eth1 nodad
+ ip -net "$ns3" link set ns3eth1 up mtu 1500
+ ip -net "$ns3" route add default via 10.0.3.2
+ ip -net "$ns3" route add default via dead:beef:3::2
+
+ ip netns exec "$ns3" ./pm_nl_ctl limits 1 1
+}
+
+# $1: ns, $2: port
+wait_local_port_listen()
+{
+ local listener_ns="${1}"
+ local port="${2}"
+
+ local port_hex i
+
+ port_hex="$(printf "%04X" "${port}")"
+ for i in $(seq 10); do
+ ip netns exec "${listener_ns}" cat /proc/net/tcp* | \
+ awk "BEGIN {rc=1} {if (\$2 ~ /:${port_hex}\$/ && \$4 ~ /0A/) {rc=0; exit}} END {exit rc}" &&
+ break
+ sleep 0.1
+ done
+}
+
+do_transfer()
+{
+ local cin=$1
+ local sin=$2
+ local max_time=$3
+ local port
+ port=$((10000+$test_cnt))
+ test_cnt=$((test_cnt+1))
+
+ :> "$cout"
+ :> "$sout"
+ :> "$capout"
+
+ local addr_port
+ addr_port=$(printf "%s:%d" ${connect_addr} ${port})
+
+ if $capture; then
+ local capuser
+ if [ -z $SUDO_USER ] ; then
+ capuser=""
+ else
+ capuser="-Z $SUDO_USER"
+ fi
+
+ local capfile="${rndh}-${port}"
+ local capopt="-i any -s 65535 -B 32768 ${capuser}"
+
+ ip netns exec ${ns3} tcpdump ${capopt} -w "${capfile}-listener.pcap" >> "${capout}" 2>&1 &
+ local cappid_listener=$!
+
+ ip netns exec ${ns1} tcpdump ${capopt} -w "${capfile}-connector.pcap" >> "${capout}" 2>&1 &
+ local cappid_connector=$!
+
+ sleep 1
+ fi
+
+ ip netns exec ${ns3} ./mptcp_connect -jt $timeout -l -p $port 0.0.0.0 < "$sin" > "$sout" &
+ local spid=$!
+
+ wait_local_port_listen "${ns3}" "${port}"
+
+ local start
+ start=$(date +%s%3N)
+ ip netns exec ${ns1} ./mptcp_connect -jt $timeout -p $port 10.0.3.3 < "$cin" > "$cout" &
+ local cpid=$!
+
+ wait $cpid
+ local retc=$?
+ wait $spid
+ local rets=$?
+
+ local stop
+ stop=$(date +%s%3N)
+
+ if $capture; then
+ sleep 1
+ kill ${cappid_listener}
+ kill ${cappid_connector}
+ fi
+
+ local duration
+ duration=$((stop-start))
+
+ cmp $sin $cout > /dev/null 2>&1
+ local cmps=$?
+ cmp $cin $sout > /dev/null 2>&1
+ local cmpc=$?
+
+ printf "%16s" "$duration max $max_time "
+ if [ $retc -eq 0 ] && [ $rets -eq 0 ] && \
+ [ $cmpc -eq 0 ] && [ $cmps -eq 0 ] && \
+ [ $duration -lt $max_time ]; then
+ echo "[ OK ]"
+ cat "$capout"
+ return 0
+ fi
+
+ echo " [ fail ]"
+ echo "client exit code $retc, server $rets" 1>&2
+ echo -e "\nnetns ${ns3} socket stat for $port:" 1>&2
+ ip netns exec ${ns3} ss -nita 1>&2 -o "sport = :$port"
+ echo -e "\nnetns ${ns1} socket stat for $port:" 1>&2
+ ip netns exec ${ns1} ss -nita 1>&2 -o "dport = :$port"
+ ls -l $sin $cout
+ ls -l $cin $sout
+
+ cat "$capout"
+ return 1
+}
+
+run_test()
+{
+ local rate1=$1
+ local rate2=$2
+ local delay1=$3
+ local delay2=$4
+ local lret
+ local dev
+ shift 4
+ local msg=$*
+
+ [ $delay1 -gt 0 ] && delay1="delay $delay1" || delay1=""
+ [ $delay2 -gt 0 ] && delay2="delay $delay2" || delay2=""
+
+ for dev in ns1eth1 ns1eth2; do
+ tc -n $ns1 qdisc del dev $dev root >/dev/null 2>&1
+ done
+ for dev in ns2eth1 ns2eth2; do
+ tc -n $ns2 qdisc del dev $dev root >/dev/null 2>&1
+ done
+ tc -n $ns1 qdisc add dev ns1eth1 root netem rate ${rate1}mbit $delay1
+ tc -n $ns1 qdisc add dev ns1eth2 root netem rate ${rate2}mbit $delay2
+ tc -n $ns2 qdisc add dev ns2eth1 root netem rate ${rate1}mbit $delay1
+ tc -n $ns2 qdisc add dev ns2eth2 root netem rate ${rate2}mbit $delay2
+
+ # time is measure in ms
+ local time=$((size * 8 * 1000 / (( $rate1 + $rate2) * 1024 *1024) ))
+
+ # mptcp_connect will do some sleeps to allow the mp_join handshake
+ # completion
+ time=$((time + 1350))
+
+ printf "%-50s" "$msg"
+ do_transfer $small $large $((time * 11 / 10))
+ lret=$?
+ if [ $lret -ne 0 ]; then
+ ret=$lret
+ [ $bail -eq 0 ] || exit $ret
+ fi
+
+ printf "%-50s" "$msg - reverse direction"
+ do_transfer $large $small $((time * 11 / 10))
+ lret=$?
+ if [ $lret -ne 0 ]; then
+ ret=$lret
+ [ $bail -eq 0 ] || exit $ret
+ fi
+}
+
+while getopts "bcdh" option;do
+ case "$option" in
+ "h")
+ usage $0
+ exit 0
+ ;;
+ "b")
+ bail=1
+ ;;
+ "c")
+ capture=true
+ ;;
+ "d")
+ set -x
+ ;;
+ "?")
+ usage $0
+ exit 1
+ ;;
+ esac
+done
+
+setup
+run_test 10 10 0 0 "balanced bwidth"
+run_test 10 10 1 50 "balanced bwidth with unbalanced delay"
+
+# we still need some additional infrastructure to pass the following test-cases
+# run_test 30 10 0 0 "unbalanced bwidth"
+# run_test 30 10 1 50 "unbalanced bwidth with unbalanced delay"
+# run_test 30 10 50 1 "unbalanced bwidth with opposed, unbalanced delay"
+exit $ret
diff --git a/tools/testing/selftests/net/msg_zerocopy.c b/tools/testing/selftests/net/msg_zerocopy.c
new file mode 100644
index 000000000..bdc03a209
--- /dev/null
+++ b/tools/testing/selftests/net/msg_zerocopy.c
@@ -0,0 +1,811 @@
+/* Evaluate MSG_ZEROCOPY
+ *
+ * Send traffic between two processes over one of the supported
+ * protocols and modes:
+ *
+ * PF_INET/PF_INET6
+ * - SOCK_STREAM
+ * - SOCK_DGRAM
+ * - SOCK_DGRAM with UDP_CORK
+ * - SOCK_RAW
+ * - SOCK_RAW with IP_HDRINCL
+ *
+ * PF_PACKET
+ * - SOCK_DGRAM
+ * - SOCK_RAW
+ *
+ * PF_RDS
+ * - SOCK_SEQPACKET
+ *
+ * Start this program on two connected hosts, one in send mode and
+ * the other with option '-r' to put it in receiver mode.
+ *
+ * If zerocopy mode ('-z') is enabled, the sender will verify that
+ * the kernel queues completions on the error queue for all zerocopy
+ * transfers.
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <error.h>
+#include <errno.h>
+#include <limits.h>
+#include <linux/errqueue.h>
+#include <linux/if_packet.h>
+#include <linux/ipv6.h>
+#include <linux/socket.h>
+#include <linux/sockios.h>
+#include <net/ethernet.h>
+#include <net/if.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/tcp.h>
+#include <netinet/udp.h>
+#include <poll.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <linux/rds.h>
+
+#ifndef SO_EE_ORIGIN_ZEROCOPY
+#define SO_EE_ORIGIN_ZEROCOPY 5
+#endif
+
+#ifndef SO_ZEROCOPY
+#define SO_ZEROCOPY 60
+#endif
+
+#ifndef SO_EE_CODE_ZEROCOPY_COPIED
+#define SO_EE_CODE_ZEROCOPY_COPIED 1
+#endif
+
+#ifndef MSG_ZEROCOPY
+#define MSG_ZEROCOPY 0x4000000
+#endif
+
+static int cfg_cork;
+static bool cfg_cork_mixed;
+static int cfg_cpu = -1; /* default: pin to last cpu */
+static int cfg_family = PF_UNSPEC;
+static int cfg_ifindex = 1;
+static int cfg_payload_len;
+static int cfg_port = 8000;
+static bool cfg_rx;
+static int cfg_runtime_ms = 4200;
+static int cfg_verbose;
+static int cfg_waittime_ms = 500;
+static bool cfg_zerocopy;
+
+static socklen_t cfg_alen;
+static struct sockaddr_storage cfg_dst_addr;
+static struct sockaddr_storage cfg_src_addr;
+
+static char payload[IP_MAXPACKET];
+static long packets, bytes, completions, expected_completions;
+static int zerocopied = -1;
+static uint32_t next_completion;
+
+static unsigned long gettimeofday_ms(void)
+{
+ struct timeval tv;
+
+ gettimeofday(&tv, NULL);
+ return (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
+}
+
+static uint16_t get_ip_csum(const uint16_t *start, int num_words)
+{
+ unsigned long sum = 0;
+ int i;
+
+ for (i = 0; i < num_words; i++)
+ sum += start[i];
+
+ while (sum >> 16)
+ sum = (sum & 0xFFFF) + (sum >> 16);
+
+ return ~sum;
+}
+
+static int do_setcpu(int cpu)
+{
+ cpu_set_t mask;
+
+ CPU_ZERO(&mask);
+ CPU_SET(cpu, &mask);
+ if (sched_setaffinity(0, sizeof(mask), &mask))
+ fprintf(stderr, "cpu: unable to pin, may increase variance.\n");
+ else if (cfg_verbose)
+ fprintf(stderr, "cpu: %u\n", cpu);
+
+ return 0;
+}
+
+static void do_setsockopt(int fd, int level, int optname, int val)
+{
+ if (setsockopt(fd, level, optname, &val, sizeof(val)))
+ error(1, errno, "setsockopt %d.%d: %d", level, optname, val);
+}
+
+static int do_poll(int fd, int events)
+{
+ struct pollfd pfd;
+ int ret;
+
+ pfd.events = events;
+ pfd.revents = 0;
+ pfd.fd = fd;
+
+ ret = poll(&pfd, 1, cfg_waittime_ms);
+ if (ret == -1)
+ error(1, errno, "poll");
+
+ return ret && (pfd.revents & events);
+}
+
+static int do_accept(int fd)
+{
+ int fda = fd;
+
+ fd = accept(fda, NULL, NULL);
+ if (fd == -1)
+ error(1, errno, "accept");
+ if (close(fda))
+ error(1, errno, "close listen sock");
+
+ return fd;
+}
+
+static void add_zcopy_cookie(struct msghdr *msg, uint32_t cookie)
+{
+ struct cmsghdr *cm;
+
+ if (!msg->msg_control)
+ error(1, errno, "NULL cookie");
+ cm = (void *)msg->msg_control;
+ cm->cmsg_len = CMSG_LEN(sizeof(cookie));
+ cm->cmsg_level = SOL_RDS;
+ cm->cmsg_type = RDS_CMSG_ZCOPY_COOKIE;
+ memcpy(CMSG_DATA(cm), &cookie, sizeof(cookie));
+}
+
+static bool do_sendmsg(int fd, struct msghdr *msg, bool do_zerocopy, int domain)
+{
+ int ret, len, i, flags;
+ static uint32_t cookie;
+ char ckbuf[CMSG_SPACE(sizeof(cookie))];
+
+ len = 0;
+ for (i = 0; i < msg->msg_iovlen; i++)
+ len += msg->msg_iov[i].iov_len;
+
+ flags = MSG_DONTWAIT;
+ if (do_zerocopy) {
+ flags |= MSG_ZEROCOPY;
+ if (domain == PF_RDS) {
+ memset(&msg->msg_control, 0, sizeof(msg->msg_control));
+ msg->msg_controllen = CMSG_SPACE(sizeof(cookie));
+ msg->msg_control = (struct cmsghdr *)ckbuf;
+ add_zcopy_cookie(msg, ++cookie);
+ }
+ }
+
+ ret = sendmsg(fd, msg, flags);
+ if (ret == -1 && errno == EAGAIN)
+ return false;
+ if (ret == -1)
+ error(1, errno, "send");
+ if (cfg_verbose && ret != len)
+ fprintf(stderr, "send: ret=%u != %u\n", ret, len);
+
+ if (len) {
+ packets++;
+ bytes += ret;
+ if (do_zerocopy && ret)
+ expected_completions++;
+ }
+ if (do_zerocopy && domain == PF_RDS) {
+ msg->msg_control = NULL;
+ msg->msg_controllen = 0;
+ }
+
+ return true;
+}
+
+static void do_sendmsg_corked(int fd, struct msghdr *msg)
+{
+ bool do_zerocopy = cfg_zerocopy;
+ int i, payload_len, extra_len;
+
+ /* split up the packet. for non-multiple, make first buffer longer */
+ payload_len = cfg_payload_len / cfg_cork;
+ extra_len = cfg_payload_len - (cfg_cork * payload_len);
+
+ do_setsockopt(fd, IPPROTO_UDP, UDP_CORK, 1);
+
+ for (i = 0; i < cfg_cork; i++) {
+
+ /* in mixed-frags mode, alternate zerocopy and copy frags
+ * start with non-zerocopy, to ensure attach later works
+ */
+ if (cfg_cork_mixed)
+ do_zerocopy = (i & 1);
+
+ msg->msg_iov[0].iov_len = payload_len + extra_len;
+ extra_len = 0;
+
+ do_sendmsg(fd, msg, do_zerocopy,
+ (cfg_dst_addr.ss_family == AF_INET ?
+ PF_INET : PF_INET6));
+ }
+
+ do_setsockopt(fd, IPPROTO_UDP, UDP_CORK, 0);
+}
+
+static int setup_iph(struct iphdr *iph, uint16_t payload_len)
+{
+ struct sockaddr_in *daddr = (void *) &cfg_dst_addr;
+ struct sockaddr_in *saddr = (void *) &cfg_src_addr;
+
+ memset(iph, 0, sizeof(*iph));
+
+ iph->version = 4;
+ iph->tos = 0;
+ iph->ihl = 5;
+ iph->ttl = 2;
+ iph->saddr = saddr->sin_addr.s_addr;
+ iph->daddr = daddr->sin_addr.s_addr;
+ iph->protocol = IPPROTO_EGP;
+ iph->tot_len = htons(sizeof(*iph) + payload_len);
+ iph->check = get_ip_csum((void *) iph, iph->ihl << 1);
+
+ return sizeof(*iph);
+}
+
+static int setup_ip6h(struct ipv6hdr *ip6h, uint16_t payload_len)
+{
+ struct sockaddr_in6 *daddr = (void *) &cfg_dst_addr;
+ struct sockaddr_in6 *saddr = (void *) &cfg_src_addr;
+
+ memset(ip6h, 0, sizeof(*ip6h));
+
+ ip6h->version = 6;
+ ip6h->payload_len = htons(payload_len);
+ ip6h->nexthdr = IPPROTO_EGP;
+ ip6h->hop_limit = 2;
+ ip6h->saddr = saddr->sin6_addr;
+ ip6h->daddr = daddr->sin6_addr;
+
+ return sizeof(*ip6h);
+}
+
+
+static void setup_sockaddr(int domain, const char *str_addr,
+ struct sockaddr_storage *sockaddr)
+{
+ struct sockaddr_in6 *addr6 = (void *) sockaddr;
+ struct sockaddr_in *addr4 = (void *) sockaddr;
+
+ switch (domain) {
+ case PF_INET:
+ memset(addr4, 0, sizeof(*addr4));
+ addr4->sin_family = AF_INET;
+ addr4->sin_port = htons(cfg_port);
+ if (str_addr &&
+ inet_pton(AF_INET, str_addr, &(addr4->sin_addr)) != 1)
+ error(1, 0, "ipv4 parse error: %s", str_addr);
+ break;
+ case PF_INET6:
+ memset(addr6, 0, sizeof(*addr6));
+ addr6->sin6_family = AF_INET6;
+ addr6->sin6_port = htons(cfg_port);
+ if (str_addr &&
+ inet_pton(AF_INET6, str_addr, &(addr6->sin6_addr)) != 1)
+ error(1, 0, "ipv6 parse error: %s", str_addr);
+ break;
+ default:
+ error(1, 0, "illegal domain");
+ }
+}
+
+static int do_setup_tx(int domain, int type, int protocol)
+{
+ int fd;
+
+ fd = socket(domain, type, protocol);
+ if (fd == -1)
+ error(1, errno, "socket t");
+
+ do_setsockopt(fd, SOL_SOCKET, SO_SNDBUF, 1 << 21);
+ if (cfg_zerocopy)
+ do_setsockopt(fd, SOL_SOCKET, SO_ZEROCOPY, 1);
+
+ if (domain != PF_PACKET && domain != PF_RDS)
+ if (connect(fd, (void *) &cfg_dst_addr, cfg_alen))
+ error(1, errno, "connect");
+
+ if (domain == PF_RDS) {
+ if (bind(fd, (void *) &cfg_src_addr, cfg_alen))
+ error(1, errno, "bind");
+ }
+
+ return fd;
+}
+
+static uint32_t do_process_zerocopy_cookies(struct rds_zcopy_cookies *ck)
+{
+ int i;
+
+ if (ck->num > RDS_MAX_ZCOOKIES)
+ error(1, 0, "Returned %d cookies, max expected %d\n",
+ ck->num, RDS_MAX_ZCOOKIES);
+ for (i = 0; i < ck->num; i++)
+ if (cfg_verbose >= 2)
+ fprintf(stderr, "%d\n", ck->cookies[i]);
+ return ck->num;
+}
+
+static bool do_recvmsg_completion(int fd)
+{
+ char cmsgbuf[CMSG_SPACE(sizeof(struct rds_zcopy_cookies))];
+ struct rds_zcopy_cookies *ck;
+ struct cmsghdr *cmsg;
+ struct msghdr msg;
+ bool ret = false;
+
+ memset(&msg, 0, sizeof(msg));
+ msg.msg_control = cmsgbuf;
+ msg.msg_controllen = sizeof(cmsgbuf);
+
+ if (recvmsg(fd, &msg, MSG_DONTWAIT))
+ return ret;
+
+ if (msg.msg_flags & MSG_CTRUNC)
+ error(1, errno, "recvmsg notification: truncated");
+
+ for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
+ if (cmsg->cmsg_level == SOL_RDS &&
+ cmsg->cmsg_type == RDS_CMSG_ZCOPY_COMPLETION) {
+
+ ck = (struct rds_zcopy_cookies *)CMSG_DATA(cmsg);
+ completions += do_process_zerocopy_cookies(ck);
+ ret = true;
+ break;
+ }
+ error(0, 0, "ignoring cmsg at level %d type %d\n",
+ cmsg->cmsg_level, cmsg->cmsg_type);
+ }
+ return ret;
+}
+
+static bool do_recv_completion(int fd, int domain)
+{
+ struct sock_extended_err *serr;
+ struct msghdr msg = {};
+ struct cmsghdr *cm;
+ uint32_t hi, lo, range;
+ int ret, zerocopy;
+ char control[100];
+
+ if (domain == PF_RDS)
+ return do_recvmsg_completion(fd);
+
+ msg.msg_control = control;
+ msg.msg_controllen = sizeof(control);
+
+ ret = recvmsg(fd, &msg, MSG_ERRQUEUE);
+ if (ret == -1 && errno == EAGAIN)
+ return false;
+ if (ret == -1)
+ error(1, errno, "recvmsg notification");
+ if (msg.msg_flags & MSG_CTRUNC)
+ error(1, errno, "recvmsg notification: truncated");
+
+ cm = CMSG_FIRSTHDR(&msg);
+ if (!cm)
+ error(1, 0, "cmsg: no cmsg");
+ if (!((cm->cmsg_level == SOL_IP && cm->cmsg_type == IP_RECVERR) ||
+ (cm->cmsg_level == SOL_IPV6 && cm->cmsg_type == IPV6_RECVERR) ||
+ (cm->cmsg_level == SOL_PACKET && cm->cmsg_type == PACKET_TX_TIMESTAMP)))
+ error(1, 0, "serr: wrong type: %d.%d",
+ cm->cmsg_level, cm->cmsg_type);
+
+ serr = (void *) CMSG_DATA(cm);
+
+ if (serr->ee_origin != SO_EE_ORIGIN_ZEROCOPY)
+ error(1, 0, "serr: wrong origin: %u", serr->ee_origin);
+ if (serr->ee_errno != 0)
+ error(1, 0, "serr: wrong error code: %u", serr->ee_errno);
+
+ hi = serr->ee_data;
+ lo = serr->ee_info;
+ range = hi - lo + 1;
+
+ /* Detect notification gaps. These should not happen often, if at all.
+ * Gaps can occur due to drops, reordering and retransmissions.
+ */
+ if (lo != next_completion)
+ fprintf(stderr, "gap: %u..%u does not append to %u\n",
+ lo, hi, next_completion);
+ next_completion = hi + 1;
+
+ zerocopy = !(serr->ee_code & SO_EE_CODE_ZEROCOPY_COPIED);
+ if (zerocopied == -1)
+ zerocopied = zerocopy;
+ else if (zerocopied != zerocopy) {
+ fprintf(stderr, "serr: inconsistent\n");
+ zerocopied = zerocopy;
+ }
+
+ if (cfg_verbose >= 2)
+ fprintf(stderr, "completed: %u (h=%u l=%u)\n",
+ range, hi, lo);
+
+ completions += range;
+ return true;
+}
+
+/* Read all outstanding messages on the errqueue */
+static void do_recv_completions(int fd, int domain)
+{
+ while (do_recv_completion(fd, domain)) {}
+}
+
+/* Wait for all remaining completions on the errqueue */
+static void do_recv_remaining_completions(int fd, int domain)
+{
+ int64_t tstop = gettimeofday_ms() + cfg_waittime_ms;
+
+ while (completions < expected_completions &&
+ gettimeofday_ms() < tstop) {
+ if (do_poll(fd, domain == PF_RDS ? POLLIN : POLLERR))
+ do_recv_completions(fd, domain);
+ }
+
+ if (completions < expected_completions)
+ fprintf(stderr, "missing notifications: %lu < %lu\n",
+ completions, expected_completions);
+}
+
+static void do_tx(int domain, int type, int protocol)
+{
+ struct iovec iov[3] = { {0} };
+ struct sockaddr_ll laddr;
+ struct msghdr msg = {0};
+ struct ethhdr eth;
+ union {
+ struct ipv6hdr ip6h;
+ struct iphdr iph;
+ } nh;
+ uint64_t tstop;
+ int fd;
+
+ fd = do_setup_tx(domain, type, protocol);
+
+ if (domain == PF_PACKET) {
+ uint16_t proto = cfg_family == PF_INET ? ETH_P_IP : ETH_P_IPV6;
+
+ /* sock_raw passes ll header as data */
+ if (type == SOCK_RAW) {
+ memset(eth.h_dest, 0x06, ETH_ALEN);
+ memset(eth.h_source, 0x02, ETH_ALEN);
+ eth.h_proto = htons(proto);
+ iov[0].iov_base = &eth;
+ iov[0].iov_len = sizeof(eth);
+ msg.msg_iovlen++;
+ }
+
+ /* both sock_raw and sock_dgram expect name */
+ memset(&laddr, 0, sizeof(laddr));
+ laddr.sll_family = AF_PACKET;
+ laddr.sll_ifindex = cfg_ifindex;
+ laddr.sll_protocol = htons(proto);
+ laddr.sll_halen = ETH_ALEN;
+
+ memset(laddr.sll_addr, 0x06, ETH_ALEN);
+
+ msg.msg_name = &laddr;
+ msg.msg_namelen = sizeof(laddr);
+ }
+
+ /* packet and raw sockets with hdrincl must pass network header */
+ if (domain == PF_PACKET || protocol == IPPROTO_RAW) {
+ if (cfg_family == PF_INET)
+ iov[1].iov_len = setup_iph(&nh.iph, cfg_payload_len);
+ else
+ iov[1].iov_len = setup_ip6h(&nh.ip6h, cfg_payload_len);
+
+ iov[1].iov_base = (void *) &nh;
+ msg.msg_iovlen++;
+ }
+
+ if (domain == PF_RDS) {
+ msg.msg_name = &cfg_dst_addr;
+ msg.msg_namelen = (cfg_dst_addr.ss_family == AF_INET ?
+ sizeof(struct sockaddr_in) :
+ sizeof(struct sockaddr_in6));
+ }
+
+ iov[2].iov_base = payload;
+ iov[2].iov_len = cfg_payload_len;
+ msg.msg_iovlen++;
+ msg.msg_iov = &iov[3 - msg.msg_iovlen];
+
+ tstop = gettimeofday_ms() + cfg_runtime_ms;
+ do {
+ if (cfg_cork)
+ do_sendmsg_corked(fd, &msg);
+ else
+ do_sendmsg(fd, &msg, cfg_zerocopy, domain);
+
+ while (!do_poll(fd, POLLOUT)) {
+ if (cfg_zerocopy)
+ do_recv_completions(fd, domain);
+ }
+
+ } while (gettimeofday_ms() < tstop);
+
+ if (cfg_zerocopy)
+ do_recv_remaining_completions(fd, domain);
+
+ if (close(fd))
+ error(1, errno, "close");
+
+ fprintf(stderr, "tx=%lu (%lu MB) txc=%lu zc=%c\n",
+ packets, bytes >> 20, completions,
+ zerocopied == 1 ? 'y' : 'n');
+}
+
+static int do_setup_rx(int domain, int type, int protocol)
+{
+ int fd;
+
+ /* If tx over PF_PACKET, rx over PF_INET(6)/SOCK_RAW,
+ * to recv the only copy of the packet, not a clone
+ */
+ if (domain == PF_PACKET)
+ error(1, 0, "Use PF_INET/SOCK_RAW to read");
+
+ if (type == SOCK_RAW && protocol == IPPROTO_RAW)
+ error(1, 0, "IPPROTO_RAW: not supported on Rx");
+
+ fd = socket(domain, type, protocol);
+ if (fd == -1)
+ error(1, errno, "socket r");
+
+ do_setsockopt(fd, SOL_SOCKET, SO_RCVBUF, 1 << 21);
+ do_setsockopt(fd, SOL_SOCKET, SO_RCVLOWAT, 1 << 16);
+ do_setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, 1);
+
+ if (bind(fd, (void *) &cfg_dst_addr, cfg_alen))
+ error(1, errno, "bind");
+
+ if (type == SOCK_STREAM) {
+ if (listen(fd, 1))
+ error(1, errno, "listen");
+ fd = do_accept(fd);
+ }
+
+ return fd;
+}
+
+/* Flush all outstanding bytes for the tcp receive queue */
+static void do_flush_tcp(int fd)
+{
+ int ret;
+
+ /* MSG_TRUNC flushes up to len bytes */
+ ret = recv(fd, NULL, 1 << 21, MSG_TRUNC | MSG_DONTWAIT);
+ if (ret == -1 && errno == EAGAIN)
+ return;
+ if (ret == -1)
+ error(1, errno, "flush");
+ if (!ret)
+ return;
+
+ packets++;
+ bytes += ret;
+}
+
+/* Flush all outstanding datagrams. Verify first few bytes of each. */
+static void do_flush_datagram(int fd, int type)
+{
+ int ret, off = 0;
+ char buf[64];
+
+ /* MSG_TRUNC will return full datagram length */
+ ret = recv(fd, buf, sizeof(buf), MSG_DONTWAIT | MSG_TRUNC);
+ if (ret == -1 && errno == EAGAIN)
+ return;
+
+ /* raw ipv4 return with header, raw ipv6 without */
+ if (cfg_family == PF_INET && type == SOCK_RAW) {
+ off += sizeof(struct iphdr);
+ ret -= sizeof(struct iphdr);
+ }
+
+ if (ret == -1)
+ error(1, errno, "recv");
+ if (ret != cfg_payload_len)
+ error(1, 0, "recv: ret=%u != %u", ret, cfg_payload_len);
+ if (ret > sizeof(buf) - off)
+ ret = sizeof(buf) - off;
+ if (memcmp(buf + off, payload, ret))
+ error(1, 0, "recv: data mismatch");
+
+ packets++;
+ bytes += cfg_payload_len;
+}
+
+static void do_rx(int domain, int type, int protocol)
+{
+ const int cfg_receiver_wait_ms = 400;
+ uint64_t tstop;
+ int fd;
+
+ fd = do_setup_rx(domain, type, protocol);
+
+ tstop = gettimeofday_ms() + cfg_runtime_ms + cfg_receiver_wait_ms;
+ do {
+ if (type == SOCK_STREAM)
+ do_flush_tcp(fd);
+ else
+ do_flush_datagram(fd, type);
+
+ do_poll(fd, POLLIN);
+
+ } while (gettimeofday_ms() < tstop);
+
+ if (close(fd))
+ error(1, errno, "close");
+
+ fprintf(stderr, "rx=%lu (%lu MB)\n", packets, bytes >> 20);
+}
+
+static void do_test(int domain, int type, int protocol)
+{
+ int i;
+
+ if (cfg_cork && (domain == PF_PACKET || type != SOCK_DGRAM))
+ error(1, 0, "can only cork udp sockets");
+
+ do_setcpu(cfg_cpu);
+
+ for (i = 0; i < IP_MAXPACKET; i++)
+ payload[i] = 'a' + (i % 26);
+
+ if (cfg_rx)
+ do_rx(domain, type, protocol);
+ else
+ do_tx(domain, type, protocol);
+}
+
+static void usage(const char *filepath)
+{
+ error(1, 0, "Usage: %s [options] <test>", filepath);
+}
+
+static void parse_opts(int argc, char **argv)
+{
+ const int max_payload_len = sizeof(payload) -
+ sizeof(struct ipv6hdr) -
+ sizeof(struct tcphdr) -
+ 40 /* max tcp options */;
+ int c;
+ char *daddr = NULL, *saddr = NULL;
+ char *cfg_test;
+
+ cfg_payload_len = max_payload_len;
+
+ while ((c = getopt(argc, argv, "46c:C:D:i:mp:rs:S:t:vz")) != -1) {
+ switch (c) {
+ case '4':
+ if (cfg_family != PF_UNSPEC)
+ error(1, 0, "Pass one of -4 or -6");
+ cfg_family = PF_INET;
+ cfg_alen = sizeof(struct sockaddr_in);
+ break;
+ case '6':
+ if (cfg_family != PF_UNSPEC)
+ error(1, 0, "Pass one of -4 or -6");
+ cfg_family = PF_INET6;
+ cfg_alen = sizeof(struct sockaddr_in6);
+ break;
+ case 'c':
+ cfg_cork = strtol(optarg, NULL, 0);
+ break;
+ case 'C':
+ cfg_cpu = strtol(optarg, NULL, 0);
+ break;
+ case 'D':
+ daddr = optarg;
+ break;
+ case 'i':
+ cfg_ifindex = if_nametoindex(optarg);
+ if (cfg_ifindex == 0)
+ error(1, errno, "invalid iface: %s", optarg);
+ break;
+ case 'm':
+ cfg_cork_mixed = true;
+ break;
+ case 'p':
+ cfg_port = strtoul(optarg, NULL, 0);
+ break;
+ case 'r':
+ cfg_rx = true;
+ break;
+ case 's':
+ cfg_payload_len = strtoul(optarg, NULL, 0);
+ break;
+ case 'S':
+ saddr = optarg;
+ break;
+ case 't':
+ cfg_runtime_ms = 200 + strtoul(optarg, NULL, 10) * 1000;
+ break;
+ case 'v':
+ cfg_verbose++;
+ break;
+ case 'z':
+ cfg_zerocopy = true;
+ break;
+ }
+ }
+
+ cfg_test = argv[argc - 1];
+ if (strcmp(cfg_test, "rds") == 0) {
+ if (!daddr)
+ error(1, 0, "-D <server addr> required for PF_RDS\n");
+ if (!cfg_rx && !saddr)
+ error(1, 0, "-S <client addr> required for PF_RDS\n");
+ }
+ setup_sockaddr(cfg_family, daddr, &cfg_dst_addr);
+ setup_sockaddr(cfg_family, saddr, &cfg_src_addr);
+
+ if (cfg_payload_len > max_payload_len)
+ error(1, 0, "-s: payload exceeds max (%d)", max_payload_len);
+ if (cfg_cork_mixed && (!cfg_zerocopy || !cfg_cork))
+ error(1, 0, "-m: cork_mixed requires corking and zerocopy");
+
+ if (optind != argc - 1)
+ usage(argv[0]);
+}
+
+int main(int argc, char **argv)
+{
+ const char *cfg_test;
+
+ parse_opts(argc, argv);
+
+ cfg_test = argv[argc - 1];
+
+ if (!strcmp(cfg_test, "packet"))
+ do_test(PF_PACKET, SOCK_RAW, 0);
+ else if (!strcmp(cfg_test, "packet_dgram"))
+ do_test(PF_PACKET, SOCK_DGRAM, 0);
+ else if (!strcmp(cfg_test, "raw"))
+ do_test(cfg_family, SOCK_RAW, IPPROTO_EGP);
+ else if (!strcmp(cfg_test, "raw_hdrincl"))
+ do_test(cfg_family, SOCK_RAW, IPPROTO_RAW);
+ else if (!strcmp(cfg_test, "tcp"))
+ do_test(cfg_family, SOCK_STREAM, 0);
+ else if (!strcmp(cfg_test, "udp"))
+ do_test(cfg_family, SOCK_DGRAM, 0);
+ else if (!strcmp(cfg_test, "rds"))
+ do_test(PF_RDS, SOCK_SEQPACKET, 0);
+ else
+ error(1, 0, "unknown cfg_test %s", cfg_test);
+
+ return 0;
+}
diff --git a/tools/testing/selftests/net/msg_zerocopy.sh b/tools/testing/selftests/net/msg_zerocopy.sh
new file mode 100755
index 000000000..825ffec85
--- /dev/null
+++ b/tools/testing/selftests/net/msg_zerocopy.sh
@@ -0,0 +1,122 @@
+#!/bin/bash
+#
+# Send data between two processes across namespaces
+# Run twice: once without and once with zerocopy
+
+set -e
+
+readonly DEV="veth0"
+readonly DEV_MTU=65535
+readonly BIN="./msg_zerocopy"
+
+readonly RAND="$(mktemp -u XXXXXX)"
+readonly NSPREFIX="ns-${RAND}"
+readonly NS1="${NSPREFIX}1"
+readonly NS2="${NSPREFIX}2"
+
+readonly SADDR4='192.168.1.1'
+readonly DADDR4='192.168.1.2'
+readonly SADDR6='fd::1'
+readonly DADDR6='fd::2'
+
+readonly path_sysctl_mem="net.core.optmem_max"
+
+# No arguments: automated test
+if [[ "$#" -eq "0" ]]; then
+ $0 4 tcp -t 1
+ $0 6 tcp -t 1
+ $0 4 udp -t 1
+ $0 6 udp -t 1
+ echo "OK. All tests passed"
+ exit 0
+fi
+
+# Argument parsing
+if [[ "$#" -lt "2" ]]; then
+ echo "Usage: $0 [4|6] [tcp|udp|raw|raw_hdrincl|packet|packet_dgram] <args>"
+ exit 1
+fi
+
+readonly IP="$1"
+shift
+readonly TXMODE="$1"
+shift
+readonly EXTRA_ARGS="$@"
+
+# Argument parsing: configure addresses
+if [[ "${IP}" == "4" ]]; then
+ readonly SADDR="${SADDR4}"
+ readonly DADDR="${DADDR4}"
+elif [[ "${IP}" == "6" ]]; then
+ readonly SADDR="${SADDR6}"
+ readonly DADDR="${DADDR6}"
+else
+ echo "Invalid IP version ${IP}"
+ exit 1
+fi
+
+# Argument parsing: select receive mode
+#
+# This differs from send mode for
+# - packet: use raw recv, because packet receives skb clones
+# - raw_hdrinc: use raw recv, because hdrincl is a tx-only option
+case "${TXMODE}" in
+'packet' | 'packet_dgram' | 'raw_hdrincl')
+ RXMODE='raw'
+ ;;
+*)
+ RXMODE="${TXMODE}"
+ ;;
+esac
+
+# Start of state changes: install cleanup handler
+save_sysctl_mem="$(sysctl -n ${path_sysctl_mem})"
+
+cleanup() {
+ ip netns del "${NS2}"
+ ip netns del "${NS1}"
+ sysctl -w -q "${path_sysctl_mem}=${save_sysctl_mem}"
+}
+
+trap cleanup EXIT
+
+# Configure system settings
+sysctl -w -q "${path_sysctl_mem}=1000000"
+
+# Create virtual ethernet pair between network namespaces
+ip netns add "${NS1}"
+ip netns add "${NS2}"
+
+ip link add "${DEV}" mtu "${DEV_MTU}" netns "${NS1}" type veth \
+ peer name "${DEV}" mtu "${DEV_MTU}" netns "${NS2}"
+
+# Bring the devices up
+ip -netns "${NS1}" link set "${DEV}" up
+ip -netns "${NS2}" link set "${DEV}" up
+
+# Set fixed MAC addresses on the devices
+ip -netns "${NS1}" link set dev "${DEV}" address 02:02:02:02:02:02
+ip -netns "${NS2}" link set dev "${DEV}" address 06:06:06:06:06:06
+
+# Add fixed IP addresses to the devices
+ip -netns "${NS1}" addr add 192.168.1.1/24 dev "${DEV}"
+ip -netns "${NS2}" addr add 192.168.1.2/24 dev "${DEV}"
+ip -netns "${NS1}" addr add fd::1/64 dev "${DEV}" nodad
+ip -netns "${NS2}" addr add fd::2/64 dev "${DEV}" nodad
+
+# Optionally disable sg or csum offload to test edge cases
+# ip netns exec "${NS1}" ethtool -K "${DEV}" sg off
+
+do_test() {
+ local readonly ARGS="$1"
+
+ echo "ipv${IP} ${TXMODE} ${ARGS}"
+ ip netns exec "${NS2}" "${BIN}" "-${IP}" -i "${DEV}" -t 2 -C 2 -S "${SADDR}" -D "${DADDR}" ${ARGS} -r "${RXMODE}" &
+ sleep 0.2
+ ip netns exec "${NS1}" "${BIN}" "-${IP}" -i "${DEV}" -t 1 -C 3 -S "${SADDR}" -D "${DADDR}" ${ARGS} "${TXMODE}"
+ wait
+}
+
+do_test "${EXTRA_ARGS}"
+do_test "-z ${EXTRA_ARGS}"
+echo ok
diff --git a/tools/testing/selftests/net/netdevice.sh b/tools/testing/selftests/net/netdevice.sh
new file mode 100755
index 000000000..e3afcb424
--- /dev/null
+++ b/tools/testing/selftests/net/netdevice.sh
@@ -0,0 +1,205 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# This test is for checking network interface
+# For the moment it tests only ethernet interface (but wifi could be easily added)
+#
+# We assume that all network driver are loaded
+# if not they probably have failed earlier in the boot process and their logged error will be catched by another test
+#
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+# this function will try to up the interface
+# if already up, nothing done
+# arg1: network interface name
+kci_net_start()
+{
+ netdev=$1
+
+ ip link show "$netdev" |grep -q UP
+ if [ $? -eq 0 ];then
+ echo "SKIP: $netdev: interface already up"
+ return $ksft_skip
+ fi
+
+ ip link set "$netdev" up
+ if [ $? -ne 0 ];then
+ echo "FAIL: $netdev: Fail to up interface"
+ return 1
+ else
+ echo "PASS: $netdev: set interface up"
+ NETDEV_STARTED=1
+ fi
+ return 0
+}
+
+# this function will try to setup an IP and MAC address on a network interface
+# Doing nothing if the interface was already up
+# arg1: network interface name
+kci_net_setup()
+{
+ netdev=$1
+
+ # do nothing if the interface was already up
+ if [ $NETDEV_STARTED -eq 0 ];then
+ return 0
+ fi
+
+ MACADDR='02:03:04:05:06:07'
+ ip link set dev $netdev address "$MACADDR"
+ if [ $? -ne 0 ];then
+ echo "FAIL: $netdev: Cannot set MAC address"
+ else
+ ip link show $netdev |grep -q "$MACADDR"
+ if [ $? -eq 0 ];then
+ echo "PASS: $netdev: set MAC address"
+ else
+ echo "FAIL: $netdev: Cannot set MAC address"
+ fi
+ fi
+
+ #check that the interface did not already have an IP
+ ip address show "$netdev" |grep '^[[:space:]]*inet'
+ if [ $? -eq 0 ];then
+ echo "SKIP: $netdev: already have an IP"
+ return $ksft_skip
+ fi
+
+ # TODO what ipaddr to set ? DHCP ?
+ echo "SKIP: $netdev: set IP address"
+ return $ksft_skip
+}
+
+# test an ethtool command
+# arg1: return code for not supported (see ethtool code source)
+# arg2: summary of the command
+# arg3: command to execute
+kci_netdev_ethtool_test()
+{
+ if [ $# -le 2 ];then
+ echo "SKIP: $netdev: ethtool: invalid number of arguments"
+ return 1
+ fi
+ $3 >/dev/null
+ ret=$?
+ if [ $ret -ne 0 ];then
+ if [ $ret -eq "$1" ];then
+ echo "SKIP: $netdev: ethtool $2 not supported"
+ return $ksft_skip
+ else
+ echo "FAIL: $netdev: ethtool $2"
+ return 1
+ fi
+ else
+ echo "PASS: $netdev: ethtool $2"
+ fi
+ return 0
+}
+
+# test ethtool commands
+# arg1: network interface name
+kci_netdev_ethtool()
+{
+ netdev=$1
+
+ #check presence of ethtool
+ ethtool --version 2>/dev/null >/dev/null
+ if [ $? -ne 0 ];then
+ echo "SKIP: ethtool not present"
+ return $ksft_skip
+ fi
+
+ TMP_ETHTOOL_FEATURES="$(mktemp)"
+ if [ ! -e "$TMP_ETHTOOL_FEATURES" ];then
+ echo "SKIP: Cannot create a tmp file"
+ return 1
+ fi
+
+ ethtool -k "$netdev" > "$TMP_ETHTOOL_FEATURES"
+ if [ $? -ne 0 ];then
+ echo "FAIL: $netdev: ethtool list features"
+ rm "$TMP_ETHTOOL_FEATURES"
+ return 1
+ fi
+ echo "PASS: $netdev: ethtool list features"
+ #TODO for each non fixed features, try to turn them on/off
+ rm "$TMP_ETHTOOL_FEATURES"
+
+ kci_netdev_ethtool_test 74 'dump' "ethtool -d $netdev"
+ kci_netdev_ethtool_test 94 'stats' "ethtool -S $netdev"
+ return 0
+}
+
+# stop a netdev
+# arg1: network interface name
+kci_netdev_stop()
+{
+ netdev=$1
+
+ if [ $NETDEV_STARTED -eq 0 ];then
+ echo "SKIP: $netdev: interface kept up"
+ return 0
+ fi
+
+ ip link set "$netdev" down
+ if [ $? -ne 0 ];then
+ echo "FAIL: $netdev: stop interface"
+ return 1
+ fi
+ echo "PASS: $netdev: stop interface"
+ return 0
+}
+
+# run all test on a netdev
+# arg1: network interface name
+kci_test_netdev()
+{
+ NETDEV_STARTED=0
+ IFACE_TO_UPDOWN="$1"
+ IFACE_TO_TEST="$1"
+ #check for VLAN interface
+ MASTER_IFACE="$(echo $1 | cut -d@ -f2)"
+ if [ ! -z "$MASTER_IFACE" ];then
+ IFACE_TO_UPDOWN="$MASTER_IFACE"
+ IFACE_TO_TEST="$(echo $1 | cut -d@ -f1)"
+ fi
+
+ NETDEV_STARTED=0
+ kci_net_start "$IFACE_TO_UPDOWN"
+
+ kci_net_setup "$IFACE_TO_TEST"
+
+ kci_netdev_ethtool "$IFACE_TO_TEST"
+
+ kci_netdev_stop "$IFACE_TO_UPDOWN"
+ return 0
+}
+
+#check for needed privileges
+if [ "$(id -u)" -ne 0 ];then
+ echo "SKIP: Need root privileges"
+ exit $ksft_skip
+fi
+
+ip link show 2>/dev/null >/dev/null
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without the ip tool"
+ exit $ksft_skip
+fi
+
+TMP_LIST_NETDEV="$(mktemp)"
+if [ ! -e "$TMP_LIST_NETDEV" ];then
+ echo "FAIL: Cannot create a tmp file"
+ exit 1
+fi
+
+ip link show |grep '^[0-9]' | grep -oE '[[:space:]].*eth[0-9]*:|[[:space:]].*enp[0-9]s[0-9]:' | cut -d\ -f2 | cut -d: -f1> "$TMP_LIST_NETDEV"
+while read netdev
+do
+ kci_test_netdev "$netdev"
+done < "$TMP_LIST_NETDEV"
+
+rm "$TMP_LIST_NETDEV"
+exit 0
diff --git a/tools/testing/selftests/net/nettest.c b/tools/testing/selftests/net/nettest.c
new file mode 100644
index 000000000..f75c53ce0
--- /dev/null
+++ b/tools/testing/selftests/net/nettest.c
@@ -0,0 +1,1815 @@
+// SPDX-License-Identifier: GPL-2.0
+/* nettest - used for functional tests of networking APIs
+ *
+ * Copyright (c) 2013-2019 David Ahern <dsahern@gmail.com>. All rights reserved.
+ */
+
+#define _GNU_SOURCE
+#include <features.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <linux/tcp.h>
+#include <arpa/inet.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#include <fcntl.h>
+#include <libgen.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <time.h>
+#include <errno.h>
+
+#ifndef IPV6_UNICAST_IF
+#define IPV6_UNICAST_IF 76
+#endif
+#ifndef IPV6_MULTICAST_IF
+#define IPV6_MULTICAST_IF 17
+#endif
+
+#define DEFAULT_PORT 12345
+
+#ifndef MAX
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#endif
+#ifndef MIN
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#endif
+
+struct sock_args {
+ /* local address */
+ union {
+ struct in_addr in;
+ struct in6_addr in6;
+ } local_addr;
+
+ /* remote address */
+ union {
+ struct in_addr in;
+ struct in6_addr in6;
+ } remote_addr;
+ int scope_id; /* remote scope; v6 send only */
+
+ struct in_addr grp; /* multicast group */
+
+ unsigned int has_local_ip:1,
+ has_remote_ip:1,
+ has_grp:1,
+ has_expected_laddr:1,
+ has_expected_raddr:1,
+ bind_test_only:1;
+
+ unsigned short port;
+
+ int type; /* DGRAM, STREAM, RAW */
+ int protocol;
+ int version; /* AF_INET/AF_INET6 */
+
+ int use_setsockopt;
+ int use_cmsg;
+ const char *dev;
+ int ifindex;
+
+ const char *password;
+ /* prefix for MD5 password */
+ union {
+ struct sockaddr_in v4;
+ struct sockaddr_in6 v6;
+ } md5_prefix;
+ unsigned int prefix_len;
+
+ /* expected addresses and device index for connection */
+ int expected_ifindex;
+
+ /* local address */
+ union {
+ struct in_addr in;
+ struct in6_addr in6;
+ } expected_laddr;
+
+ /* remote address */
+ union {
+ struct in_addr in;
+ struct in6_addr in6;
+ } expected_raddr;
+};
+
+static int server_mode;
+static unsigned int prog_timeout = 5;
+static unsigned int interactive;
+static int iter = 1;
+static char *msg = "Hello world!";
+static int msglen;
+static int quiet;
+static int try_broadcast = 1;
+
+static char *timestamp(char *timebuf, int buflen)
+{
+ time_t now;
+
+ now = time(NULL);
+ if (strftime(timebuf, buflen, "%T", localtime(&now)) == 0) {
+ memset(timebuf, 0, buflen);
+ strncpy(timebuf, "00:00:00", buflen-1);
+ }
+
+ return timebuf;
+}
+
+static void log_msg(const char *format, ...)
+{
+ char timebuf[64];
+ va_list args;
+
+ if (quiet)
+ return;
+
+ fprintf(stdout, "%s %s:",
+ timestamp(timebuf, sizeof(timebuf)),
+ server_mode ? "server" : "client");
+ va_start(args, format);
+ vfprintf(stdout, format, args);
+ va_end(args);
+
+ fflush(stdout);
+}
+
+static void log_error(const char *format, ...)
+{
+ char timebuf[64];
+ va_list args;
+
+ if (quiet)
+ return;
+
+ fprintf(stderr, "%s %s:",
+ timestamp(timebuf, sizeof(timebuf)),
+ server_mode ? "server" : "client");
+ va_start(args, format);
+ vfprintf(stderr, format, args);
+ va_end(args);
+
+ fflush(stderr);
+}
+
+static void log_err_errno(const char *fmt, ...)
+{
+ char timebuf[64];
+ va_list args;
+
+ if (quiet)
+ return;
+
+ fprintf(stderr, "%s %s: ",
+ timestamp(timebuf, sizeof(timebuf)),
+ server_mode ? "server" : "client");
+ va_start(args, fmt);
+ vfprintf(stderr, fmt, args);
+ va_end(args);
+
+ fprintf(stderr, ": %d: %s\n", errno, strerror(errno));
+ fflush(stderr);
+}
+
+static void log_address(const char *desc, struct sockaddr *sa)
+{
+ char addrstr[64];
+
+ if (quiet)
+ return;
+
+ if (sa->sa_family == AF_INET) {
+ struct sockaddr_in *s = (struct sockaddr_in *) sa;
+
+ log_msg("%s %s:%d",
+ desc,
+ inet_ntop(AF_INET, &s->sin_addr, addrstr,
+ sizeof(addrstr)),
+ ntohs(s->sin_port));
+
+ } else if (sa->sa_family == AF_INET6) {
+ struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) sa;
+
+ log_msg("%s [%s]:%d",
+ desc,
+ inet_ntop(AF_INET6, &s6->sin6_addr, addrstr,
+ sizeof(addrstr)),
+ ntohs(s6->sin6_port));
+ }
+
+ printf("\n");
+
+ fflush(stdout);
+}
+
+static int tcp_md5sig(int sd, void *addr, socklen_t alen, struct sock_args *args)
+{
+ int keylen = strlen(args->password);
+ struct tcp_md5sig md5sig = {};
+ int opt = TCP_MD5SIG;
+ int rc;
+
+ md5sig.tcpm_keylen = keylen;
+ memcpy(md5sig.tcpm_key, args->password, keylen);
+
+ if (args->prefix_len) {
+ opt = TCP_MD5SIG_EXT;
+ md5sig.tcpm_flags |= TCP_MD5SIG_FLAG_PREFIX;
+
+ md5sig.tcpm_prefixlen = args->prefix_len;
+ addr = &args->md5_prefix;
+ }
+ memcpy(&md5sig.tcpm_addr, addr, alen);
+
+ if (args->ifindex) {
+ opt = TCP_MD5SIG_EXT;
+ md5sig.tcpm_flags |= TCP_MD5SIG_FLAG_IFINDEX;
+
+ md5sig.tcpm_ifindex = args->ifindex;
+ }
+
+ rc = setsockopt(sd, IPPROTO_TCP, opt, &md5sig, sizeof(md5sig));
+ if (rc < 0) {
+ /* ENOENT is harmless. Returned when a password is cleared */
+ if (errno == ENOENT)
+ rc = 0;
+ else
+ log_err_errno("setsockopt(TCP_MD5SIG)");
+ }
+
+ return rc;
+}
+
+static int tcp_md5_remote(int sd, struct sock_args *args)
+{
+ struct sockaddr_in sin = {
+ .sin_family = AF_INET,
+ };
+ struct sockaddr_in6 sin6 = {
+ .sin6_family = AF_INET6,
+ };
+ void *addr;
+ int alen;
+
+ switch (args->version) {
+ case AF_INET:
+ sin.sin_port = htons(args->port);
+ sin.sin_addr = args->remote_addr.in;
+ addr = &sin;
+ alen = sizeof(sin);
+ break;
+ case AF_INET6:
+ sin6.sin6_port = htons(args->port);
+ sin6.sin6_addr = args->remote_addr.in6;
+ addr = &sin6;
+ alen = sizeof(sin6);
+ break;
+ default:
+ log_error("unknown address family\n");
+ exit(1);
+ }
+
+ if (tcp_md5sig(sd, addr, alen, args))
+ return -1;
+
+ return 0;
+}
+
+static int get_ifidx(const char *ifname)
+{
+ struct ifreq ifdata;
+ int sd, rc;
+
+ if (!ifname || *ifname == '\0')
+ return -1;
+
+ memset(&ifdata, 0, sizeof(ifdata));
+
+ strcpy(ifdata.ifr_name, ifname);
+
+ sd = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
+ if (sd < 0) {
+ log_err_errno("socket failed");
+ return -1;
+ }
+
+ rc = ioctl(sd, SIOCGIFINDEX, (char *)&ifdata);
+ close(sd);
+ if (rc != 0) {
+ log_err_errno("ioctl(SIOCGIFINDEX) failed");
+ return -1;
+ }
+
+ return ifdata.ifr_ifindex;
+}
+
+static int bind_to_device(int sd, const char *name)
+{
+ int rc;
+
+ rc = setsockopt(sd, SOL_SOCKET, SO_BINDTODEVICE, name, strlen(name)+1);
+ if (rc < 0)
+ log_err_errno("setsockopt(SO_BINDTODEVICE)");
+
+ return rc;
+}
+
+static int get_bind_to_device(int sd, char *name, size_t len)
+{
+ int rc;
+ socklen_t optlen = len;
+
+ name[0] = '\0';
+ rc = getsockopt(sd, SOL_SOCKET, SO_BINDTODEVICE, name, &optlen);
+ if (rc < 0)
+ log_err_errno("setsockopt(SO_BINDTODEVICE)");
+
+ return rc;
+}
+
+static int check_device(int sd, struct sock_args *args)
+{
+ int ifindex = 0;
+ char name[32];
+
+ if (get_bind_to_device(sd, name, sizeof(name)))
+ *name = '\0';
+ else
+ ifindex = get_ifidx(name);
+
+ log_msg(" bound to device %s/%d\n",
+ *name ? name : "<none>", ifindex);
+
+ if (!args->expected_ifindex)
+ return 0;
+
+ if (args->expected_ifindex != ifindex) {
+ log_error("Device index mismatch: expected %d have %d\n",
+ args->expected_ifindex, ifindex);
+ return 1;
+ }
+
+ log_msg("Device index matches: expected %d have %d\n",
+ args->expected_ifindex, ifindex);
+
+ return 0;
+}
+
+static int set_pktinfo_v4(int sd)
+{
+ int one = 1;
+ int rc;
+
+ rc = setsockopt(sd, SOL_IP, IP_PKTINFO, &one, sizeof(one));
+ if (rc < 0 && rc != -ENOTSUP)
+ log_err_errno("setsockopt(IP_PKTINFO)");
+
+ return rc;
+}
+
+static int set_recvpktinfo_v6(int sd)
+{
+ int one = 1;
+ int rc;
+
+ rc = setsockopt(sd, SOL_IPV6, IPV6_RECVPKTINFO, &one, sizeof(one));
+ if (rc < 0 && rc != -ENOTSUP)
+ log_err_errno("setsockopt(IPV6_RECVPKTINFO)");
+
+ return rc;
+}
+
+static int set_recverr_v4(int sd)
+{
+ int one = 1;
+ int rc;
+
+ rc = setsockopt(sd, SOL_IP, IP_RECVERR, &one, sizeof(one));
+ if (rc < 0 && rc != -ENOTSUP)
+ log_err_errno("setsockopt(IP_RECVERR)");
+
+ return rc;
+}
+
+static int set_recverr_v6(int sd)
+{
+ int one = 1;
+ int rc;
+
+ rc = setsockopt(sd, SOL_IPV6, IPV6_RECVERR, &one, sizeof(one));
+ if (rc < 0 && rc != -ENOTSUP)
+ log_err_errno("setsockopt(IPV6_RECVERR)");
+
+ return rc;
+}
+
+static int set_unicast_if(int sd, int ifindex, int version)
+{
+ int opt = IP_UNICAST_IF;
+ int level = SOL_IP;
+ int rc;
+
+ ifindex = htonl(ifindex);
+
+ if (version == AF_INET6) {
+ opt = IPV6_UNICAST_IF;
+ level = SOL_IPV6;
+ }
+ rc = setsockopt(sd, level, opt, &ifindex, sizeof(ifindex));
+ if (rc < 0)
+ log_err_errno("setsockopt(IP_UNICAST_IF)");
+
+ return rc;
+}
+
+static int set_multicast_if(int sd, int ifindex)
+{
+ struct ip_mreqn mreq = { .imr_ifindex = ifindex };
+ int rc;
+
+ rc = setsockopt(sd, SOL_IP, IP_MULTICAST_IF, &mreq, sizeof(mreq));
+ if (rc < 0)
+ log_err_errno("setsockopt(IP_MULTICAST_IF)");
+
+ return rc;
+}
+
+static int set_membership(int sd, uint32_t grp, uint32_t addr, int ifindex)
+{
+ uint32_t if_addr = addr;
+ struct ip_mreqn mreq;
+ int rc;
+
+ if (addr == htonl(INADDR_ANY) && !ifindex) {
+ log_error("Either local address or device needs to be given for multicast membership\n");
+ return -1;
+ }
+
+ mreq.imr_multiaddr.s_addr = grp;
+ mreq.imr_address.s_addr = if_addr;
+ mreq.imr_ifindex = ifindex;
+
+ rc = setsockopt(sd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq));
+ if (rc < 0) {
+ log_err_errno("setsockopt(IP_ADD_MEMBERSHIP)");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int set_broadcast(int sd)
+{
+ unsigned int one = 1;
+ int rc = 0;
+
+ if (setsockopt(sd, SOL_SOCKET, SO_BROADCAST, &one, sizeof(one)) != 0) {
+ log_err_errno("setsockopt(SO_BROADCAST)");
+ rc = -1;
+ }
+
+ return rc;
+}
+
+static int set_reuseport(int sd)
+{
+ unsigned int one = 1;
+ int rc = 0;
+
+ if (setsockopt(sd, SOL_SOCKET, SO_REUSEPORT, &one, sizeof(one)) != 0) {
+ log_err_errno("setsockopt(SO_REUSEPORT)");
+ rc = -1;
+ }
+
+ return rc;
+}
+
+static int set_reuseaddr(int sd)
+{
+ unsigned int one = 1;
+ int rc = 0;
+
+ if (setsockopt(sd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)) != 0) {
+ log_err_errno("setsockopt(SO_REUSEADDR)");
+ rc = -1;
+ }
+
+ return rc;
+}
+
+static int str_to_uint(const char *str, int min, int max, unsigned int *value)
+{
+ int number;
+ char *end;
+
+ errno = 0;
+ number = (unsigned int) strtoul(str, &end, 0);
+
+ /* entire string should be consumed by conversion
+ * and value should be between min and max
+ */
+ if (((*end == '\0') || (*end == '\n')) && (end != str) &&
+ (errno != ERANGE) && (min <= number) && (number <= max)) {
+ *value = number;
+ return 0;
+ }
+
+ return -1;
+}
+
+static int expected_addr_match(struct sockaddr *sa, void *expected,
+ const char *desc)
+{
+ char addrstr[64];
+ int rc = 0;
+
+ if (sa->sa_family == AF_INET) {
+ struct sockaddr_in *s = (struct sockaddr_in *) sa;
+ struct in_addr *exp_in = (struct in_addr *) expected;
+
+ if (s->sin_addr.s_addr != exp_in->s_addr) {
+ log_error("%s address does not match expected %s",
+ desc,
+ inet_ntop(AF_INET, exp_in,
+ addrstr, sizeof(addrstr)));
+ rc = 1;
+ }
+ } else if (sa->sa_family == AF_INET6) {
+ struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) sa;
+ struct in6_addr *exp_in = (struct in6_addr *) expected;
+
+ if (memcmp(&s6->sin6_addr, exp_in, sizeof(*exp_in))) {
+ log_error("%s address does not match expected %s",
+ desc,
+ inet_ntop(AF_INET6, exp_in,
+ addrstr, sizeof(addrstr)));
+ rc = 1;
+ }
+ } else {
+ log_error("%s address does not match expected - unknown family",
+ desc);
+ rc = 1;
+ }
+
+ if (!rc)
+ log_msg("%s address matches expected\n", desc);
+
+ return rc;
+}
+
+static int show_sockstat(int sd, struct sock_args *args)
+{
+ struct sockaddr_in6 local_addr, remote_addr;
+ socklen_t alen = sizeof(local_addr);
+ struct sockaddr *sa;
+ const char *desc;
+ int rc = 0;
+
+ desc = server_mode ? "server local:" : "client local:";
+ sa = (struct sockaddr *) &local_addr;
+ if (getsockname(sd, sa, &alen) == 0) {
+ log_address(desc, sa);
+
+ if (args->has_expected_laddr) {
+ rc = expected_addr_match(sa, &args->expected_laddr,
+ "local");
+ }
+ } else {
+ log_err_errno("getsockname failed");
+ }
+
+ sa = (struct sockaddr *) &remote_addr;
+ desc = server_mode ? "server peer:" : "client peer:";
+ if (getpeername(sd, sa, &alen) == 0) {
+ log_address(desc, sa);
+
+ if (args->has_expected_raddr) {
+ rc |= expected_addr_match(sa, &args->expected_raddr,
+ "remote");
+ }
+ } else {
+ log_err_errno("getpeername failed");
+ }
+
+ return rc;
+}
+
+static int get_index_from_cmsg(struct msghdr *m)
+{
+ struct cmsghdr *cm;
+ int ifindex = 0;
+ char buf[64];
+
+ for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(m);
+ m->msg_controllen != 0 && cm;
+ cm = (struct cmsghdr *)CMSG_NXTHDR(m, cm)) {
+
+ if (cm->cmsg_level == SOL_IP &&
+ cm->cmsg_type == IP_PKTINFO) {
+ struct in_pktinfo *pi;
+
+ pi = (struct in_pktinfo *)(CMSG_DATA(cm));
+ inet_ntop(AF_INET, &pi->ipi_addr, buf, sizeof(buf));
+ ifindex = pi->ipi_ifindex;
+ } else if (cm->cmsg_level == SOL_IPV6 &&
+ cm->cmsg_type == IPV6_PKTINFO) {
+ struct in6_pktinfo *pi6;
+
+ pi6 = (struct in6_pktinfo *)(CMSG_DATA(cm));
+ inet_ntop(AF_INET6, &pi6->ipi6_addr, buf, sizeof(buf));
+ ifindex = pi6->ipi6_ifindex;
+ }
+ }
+
+ if (ifindex) {
+ log_msg(" pktinfo: ifindex %d dest addr %s\n",
+ ifindex, buf);
+ }
+ return ifindex;
+}
+
+static int send_msg_no_cmsg(int sd, void *addr, socklen_t alen)
+{
+ int err;
+
+again:
+ err = sendto(sd, msg, msglen, 0, addr, alen);
+ if (err < 0) {
+ if (errno == EACCES && try_broadcast) {
+ try_broadcast = 0;
+ if (!set_broadcast(sd))
+ goto again;
+ errno = EACCES;
+ }
+
+ log_err_errno("sendto failed");
+ return 1;
+ }
+
+ return 0;
+}
+
+static int send_msg_cmsg(int sd, void *addr, socklen_t alen,
+ int ifindex, int version)
+{
+ unsigned char cmsgbuf[64];
+ struct iovec iov[2];
+ struct cmsghdr *cm;
+ struct msghdr m;
+ int err;
+
+ iov[0].iov_base = msg;
+ iov[0].iov_len = msglen;
+ m.msg_iov = iov;
+ m.msg_iovlen = 1;
+ m.msg_name = (caddr_t)addr;
+ m.msg_namelen = alen;
+
+ memset(cmsgbuf, 0, sizeof(cmsgbuf));
+ cm = (struct cmsghdr *)cmsgbuf;
+ m.msg_control = (caddr_t)cm;
+
+ if (version == AF_INET) {
+ struct in_pktinfo *pi;
+
+ cm->cmsg_level = SOL_IP;
+ cm->cmsg_type = IP_PKTINFO;
+ cm->cmsg_len = CMSG_LEN(sizeof(struct in_pktinfo));
+ pi = (struct in_pktinfo *)(CMSG_DATA(cm));
+ pi->ipi_ifindex = ifindex;
+
+ m.msg_controllen = cm->cmsg_len;
+
+ } else if (version == AF_INET6) {
+ struct in6_pktinfo *pi6;
+
+ cm->cmsg_level = SOL_IPV6;
+ cm->cmsg_type = IPV6_PKTINFO;
+ cm->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo));
+
+ pi6 = (struct in6_pktinfo *)(CMSG_DATA(cm));
+ pi6->ipi6_ifindex = ifindex;
+
+ m.msg_controllen = cm->cmsg_len;
+ }
+
+again:
+ err = sendmsg(sd, &m, 0);
+ if (err < 0) {
+ if (errno == EACCES && try_broadcast) {
+ try_broadcast = 0;
+ if (!set_broadcast(sd))
+ goto again;
+ errno = EACCES;
+ }
+
+ log_err_errno("sendmsg failed");
+ return 1;
+ }
+
+ return 0;
+}
+
+
+static int send_msg(int sd, void *addr, socklen_t alen, struct sock_args *args)
+{
+ if (args->type == SOCK_STREAM) {
+ if (write(sd, msg, msglen) < 0) {
+ log_err_errno("write failed sending msg to peer");
+ return 1;
+ }
+ } else if (args->ifindex && args->use_cmsg) {
+ if (send_msg_cmsg(sd, addr, alen, args->ifindex, args->version))
+ return 1;
+ } else {
+ if (send_msg_no_cmsg(sd, addr, alen))
+ return 1;
+ }
+
+ log_msg("Sent message:\n");
+ log_msg(" %.24s%s\n", msg, msglen > 24 ? " ..." : "");
+
+ return 0;
+}
+
+static int socket_read_dgram(int sd, struct sock_args *args)
+{
+ unsigned char addr[sizeof(struct sockaddr_in6)];
+ struct sockaddr *sa = (struct sockaddr *) addr;
+ socklen_t alen = sizeof(addr);
+ struct iovec iov[2];
+ struct msghdr m = {
+ .msg_name = (caddr_t)addr,
+ .msg_namelen = alen,
+ .msg_iov = iov,
+ .msg_iovlen = 1,
+ };
+ unsigned char cmsgbuf[256];
+ struct cmsghdr *cm = (struct cmsghdr *)cmsgbuf;
+ char buf[16*1024];
+ int ifindex;
+ int len;
+
+ iov[0].iov_base = (caddr_t)buf;
+ iov[0].iov_len = sizeof(buf);
+
+ memset(cmsgbuf, 0, sizeof(cmsgbuf));
+ m.msg_control = (caddr_t)cm;
+ m.msg_controllen = sizeof(cmsgbuf);
+
+ len = recvmsg(sd, &m, 0);
+ if (len == 0) {
+ log_msg("peer closed connection.\n");
+ return 0;
+ } else if (len < 0) {
+ log_msg("failed to read message: %d: %s\n",
+ errno, strerror(errno));
+ return -1;
+ }
+
+ buf[len] = '\0';
+
+ log_address("Message from:", sa);
+ log_msg(" %.24s%s\n", buf, len > 24 ? " ..." : "");
+
+ ifindex = get_index_from_cmsg(&m);
+ if (args->expected_ifindex) {
+ if (args->expected_ifindex != ifindex) {
+ log_error("Device index mismatch: expected %d have %d\n",
+ args->expected_ifindex, ifindex);
+ return -1;
+ }
+ log_msg("Device index matches: expected %d have %d\n",
+ args->expected_ifindex, ifindex);
+ }
+
+ if (!interactive && server_mode) {
+ if (sa->sa_family == AF_INET6) {
+ struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) sa;
+ struct in6_addr *in6 = &s6->sin6_addr;
+
+ if (IN6_IS_ADDR_V4MAPPED(in6)) {
+ const uint32_t *pa = (uint32_t *) &in6->s6_addr;
+ struct in_addr in4;
+ struct sockaddr_in *sin;
+
+ sin = (struct sockaddr_in *) addr;
+ pa += 3;
+ in4.s_addr = *pa;
+ sin->sin_addr = in4;
+ sin->sin_family = AF_INET;
+ if (send_msg_cmsg(sd, addr, alen,
+ ifindex, AF_INET) < 0)
+ goto out_err;
+ }
+ }
+again:
+ iov[0].iov_len = len;
+
+ if (args->version == AF_INET6) {
+ struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) sa;
+
+ if (args->dev) {
+ /* avoid PKTINFO conflicts with bindtodev */
+ if (sendto(sd, buf, len, 0,
+ (void *) addr, alen) < 0)
+ goto out_err;
+ } else {
+ /* kernel is allowing scope_id to be set to VRF
+ * index for LLA. for sends to global address
+ * reset scope id
+ */
+ s6->sin6_scope_id = ifindex;
+ if (sendmsg(sd, &m, 0) < 0)
+ goto out_err;
+ }
+ } else {
+ int err;
+
+ err = sendmsg(sd, &m, 0);
+ if (err < 0) {
+ if (errno == EACCES && try_broadcast) {
+ try_broadcast = 0;
+ if (!set_broadcast(sd))
+ goto again;
+ errno = EACCES;
+ }
+ goto out_err;
+ }
+ }
+ log_msg("Sent message:\n");
+ log_msg(" %.24s%s\n", buf, len > 24 ? " ..." : "");
+ }
+
+ return 1;
+out_err:
+ log_err_errno("failed to send msg to peer");
+ return -1;
+}
+
+static int socket_read_stream(int sd)
+{
+ char buf[1024];
+ int len;
+
+ len = read(sd, buf, sizeof(buf)-1);
+ if (len == 0) {
+ log_msg("client closed connection.\n");
+ return 0;
+ } else if (len < 0) {
+ log_msg("failed to read message\n");
+ return -1;
+ }
+
+ buf[len] = '\0';
+ log_msg("Incoming message:\n");
+ log_msg(" %.24s%s\n", buf, len > 24 ? " ..." : "");
+
+ if (!interactive && server_mode) {
+ if (write(sd, buf, len) < 0) {
+ log_err_errno("failed to send buf");
+ return -1;
+ }
+ log_msg("Sent message:\n");
+ log_msg(" %.24s%s\n", buf, len > 24 ? " ..." : "");
+ }
+
+ return 1;
+}
+
+static int socket_read(int sd, struct sock_args *args)
+{
+ if (args->type == SOCK_STREAM)
+ return socket_read_stream(sd);
+
+ return socket_read_dgram(sd, args);
+}
+
+static int stdin_to_socket(int sd, int type, void *addr, socklen_t alen)
+{
+ char buf[1024];
+ int len;
+
+ if (fgets(buf, sizeof(buf), stdin) == NULL)
+ return 0;
+
+ len = strlen(buf);
+ if (type == SOCK_STREAM) {
+ if (write(sd, buf, len) < 0) {
+ log_err_errno("failed to send buf");
+ return -1;
+ }
+ } else {
+ int err;
+
+again:
+ err = sendto(sd, buf, len, 0, addr, alen);
+ if (err < 0) {
+ if (errno == EACCES && try_broadcast) {
+ try_broadcast = 0;
+ if (!set_broadcast(sd))
+ goto again;
+ errno = EACCES;
+ }
+ log_err_errno("failed to send msg to peer");
+ return -1;
+ }
+ }
+ log_msg("Sent message:\n");
+ log_msg(" %.24s%s\n", buf, len > 24 ? " ..." : "");
+
+ return 1;
+}
+
+static void set_recv_attr(int sd, int version)
+{
+ if (version == AF_INET6) {
+ set_recvpktinfo_v6(sd);
+ set_recverr_v6(sd);
+ } else {
+ set_pktinfo_v4(sd);
+ set_recverr_v4(sd);
+ }
+}
+
+static int msg_loop(int client, int sd, void *addr, socklen_t alen,
+ struct sock_args *args)
+{
+ struct timeval timeout = { .tv_sec = prog_timeout }, *ptval = NULL;
+ fd_set rfds;
+ int nfds;
+ int rc;
+
+ if (args->type != SOCK_STREAM)
+ set_recv_attr(sd, args->version);
+
+ if (msg) {
+ msglen = strlen(msg);
+
+ /* client sends first message */
+ if (client) {
+ if (send_msg(sd, addr, alen, args))
+ return 1;
+ }
+ if (!interactive) {
+ ptval = &timeout;
+ if (!prog_timeout)
+ timeout.tv_sec = 5;
+ }
+ }
+
+ nfds = interactive ? MAX(fileno(stdin), sd) + 1 : sd + 1;
+ while (1) {
+ FD_ZERO(&rfds);
+ FD_SET(sd, &rfds);
+ if (interactive)
+ FD_SET(fileno(stdin), &rfds);
+
+ rc = select(nfds, &rfds, NULL, NULL, ptval);
+ if (rc < 0) {
+ if (errno == EINTR)
+ continue;
+
+ rc = 1;
+ log_err_errno("select failed");
+ break;
+ } else if (rc == 0) {
+ log_error("Timed out waiting for response\n");
+ rc = 2;
+ break;
+ }
+
+ if (FD_ISSET(sd, &rfds)) {
+ rc = socket_read(sd, args);
+ if (rc < 0) {
+ rc = 1;
+ break;
+ }
+ if (rc == 0)
+ break;
+ }
+
+ rc = 0;
+
+ if (FD_ISSET(fileno(stdin), &rfds)) {
+ if (stdin_to_socket(sd, args->type, addr, alen) <= 0)
+ break;
+ }
+
+ if (interactive)
+ continue;
+
+ if (iter != -1) {
+ --iter;
+ if (iter == 0)
+ break;
+ }
+
+ log_msg("Going into quiet mode\n");
+ quiet = 1;
+
+ if (client) {
+ if (send_msg(sd, addr, alen, args)) {
+ rc = 1;
+ break;
+ }
+ }
+ }
+
+ return rc;
+}
+
+static int msock_init(struct sock_args *args, int server)
+{
+ uint32_t if_addr = htonl(INADDR_ANY);
+ struct sockaddr_in laddr = {
+ .sin_family = AF_INET,
+ .sin_port = htons(args->port),
+ };
+ int one = 1;
+ int sd;
+
+ if (!server && args->has_local_ip)
+ if_addr = args->local_addr.in.s_addr;
+
+ sd = socket(PF_INET, SOCK_DGRAM, 0);
+ if (sd < 0) {
+ log_err_errno("socket");
+ return -1;
+ }
+
+ if (setsockopt(sd, SOL_SOCKET, SO_REUSEADDR,
+ (char *)&one, sizeof(one)) < 0) {
+ log_err_errno("Setting SO_REUSEADDR error");
+ goto out_err;
+ }
+
+ if (setsockopt(sd, SOL_SOCKET, SO_BROADCAST,
+ (char *)&one, sizeof(one)) < 0)
+ log_err_errno("Setting SO_BROADCAST error");
+
+ if (args->dev && bind_to_device(sd, args->dev) != 0)
+ goto out_err;
+ else if (args->use_setsockopt &&
+ set_multicast_if(sd, args->ifindex))
+ goto out_err;
+
+ laddr.sin_addr.s_addr = if_addr;
+
+ if (bind(sd, (struct sockaddr *) &laddr, sizeof(laddr)) < 0) {
+ log_err_errno("bind failed");
+ goto out_err;
+ }
+
+ if (server &&
+ set_membership(sd, args->grp.s_addr,
+ args->local_addr.in.s_addr, args->ifindex))
+ goto out_err;
+
+ return sd;
+out_err:
+ close(sd);
+ return -1;
+}
+
+static int msock_server(struct sock_args *args)
+{
+ return msock_init(args, 1);
+}
+
+static int msock_client(struct sock_args *args)
+{
+ return msock_init(args, 0);
+}
+
+static int bind_socket(int sd, struct sock_args *args)
+{
+ struct sockaddr_in serv_addr = {
+ .sin_family = AF_INET,
+ };
+ struct sockaddr_in6 serv6_addr = {
+ .sin6_family = AF_INET6,
+ };
+ void *addr;
+ socklen_t alen;
+
+ if (!args->has_local_ip && args->type == SOCK_RAW)
+ return 0;
+
+ switch (args->version) {
+ case AF_INET:
+ serv_addr.sin_port = htons(args->port);
+ serv_addr.sin_addr = args->local_addr.in;
+ addr = &serv_addr;
+ alen = sizeof(serv_addr);
+ break;
+
+ case AF_INET6:
+ serv6_addr.sin6_port = htons(args->port);
+ serv6_addr.sin6_addr = args->local_addr.in6;
+ addr = &serv6_addr;
+ alen = sizeof(serv6_addr);
+ break;
+
+ default:
+ log_error("Invalid address family\n");
+ return -1;
+ }
+
+ if (bind(sd, addr, alen) < 0) {
+ log_err_errno("error binding socket");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int lsock_init(struct sock_args *args)
+{
+ long flags;
+ int sd;
+
+ sd = socket(args->version, args->type, args->protocol);
+ if (sd < 0) {
+ log_err_errno("Error opening socket");
+ return -1;
+ }
+
+ if (set_reuseaddr(sd) != 0)
+ goto err;
+
+ if (set_reuseport(sd) != 0)
+ goto err;
+
+ if (args->dev && bind_to_device(sd, args->dev) != 0)
+ goto err;
+ else if (args->use_setsockopt &&
+ set_unicast_if(sd, args->ifindex, args->version))
+ goto err;
+
+ if (bind_socket(sd, args))
+ goto err;
+
+ if (args->bind_test_only)
+ goto out;
+
+ if (args->type == SOCK_STREAM && listen(sd, 1) < 0) {
+ log_err_errno("listen failed");
+ goto err;
+ }
+
+ flags = fcntl(sd, F_GETFL);
+ if ((flags < 0) || (fcntl(sd, F_SETFL, flags|O_NONBLOCK) < 0)) {
+ log_err_errno("Failed to set non-blocking option");
+ goto err;
+ }
+
+ if (fcntl(sd, F_SETFD, FD_CLOEXEC) < 0)
+ log_err_errno("Failed to set close-on-exec flag");
+
+out:
+ return sd;
+
+err:
+ close(sd);
+ return -1;
+}
+
+static int do_server(struct sock_args *args)
+{
+ struct timeval timeout = { .tv_sec = prog_timeout }, *ptval = NULL;
+ unsigned char addr[sizeof(struct sockaddr_in6)] = {};
+ socklen_t alen = sizeof(addr);
+ int lsd, csd = -1;
+
+ fd_set rfds;
+ int rc;
+
+ if (prog_timeout)
+ ptval = &timeout;
+
+ if (args->has_grp)
+ lsd = msock_server(args);
+ else
+ lsd = lsock_init(args);
+
+ if (lsd < 0)
+ return 1;
+
+ if (args->bind_test_only) {
+ close(lsd);
+ return 0;
+ }
+
+ if (args->type != SOCK_STREAM) {
+ rc = msg_loop(0, lsd, (void *) addr, alen, args);
+ close(lsd);
+ return rc;
+ }
+
+ if (args->password && tcp_md5_remote(lsd, args)) {
+ close(lsd);
+ return 1;
+ }
+
+ while (1) {
+ log_msg("\n");
+ log_msg("waiting for client connection.\n");
+ FD_ZERO(&rfds);
+ FD_SET(lsd, &rfds);
+
+ rc = select(lsd+1, &rfds, NULL, NULL, ptval);
+ if (rc == 0) {
+ rc = 2;
+ break;
+ }
+
+ if (rc < 0) {
+ if (errno == EINTR)
+ continue;
+
+ log_err_errno("select failed");
+ break;
+ }
+
+ if (FD_ISSET(lsd, &rfds)) {
+
+ csd = accept(lsd, (void *) addr, &alen);
+ if (csd < 0) {
+ log_err_errno("accept failed");
+ break;
+ }
+
+ rc = show_sockstat(csd, args);
+ if (rc)
+ break;
+
+ rc = check_device(csd, args);
+ if (rc)
+ break;
+ }
+
+ rc = msg_loop(0, csd, (void *) addr, alen, args);
+ close(csd);
+
+ if (!interactive)
+ break;
+ }
+
+ close(lsd);
+
+ return rc;
+}
+
+static int wait_for_connect(int sd)
+{
+ struct timeval _tv = { .tv_sec = prog_timeout }, *tv = NULL;
+ fd_set wfd;
+ int val = 0, sz = sizeof(val);
+ int rc;
+
+ FD_ZERO(&wfd);
+ FD_SET(sd, &wfd);
+
+ if (prog_timeout)
+ tv = &_tv;
+
+ rc = select(FD_SETSIZE, NULL, &wfd, NULL, tv);
+ if (rc == 0) {
+ log_error("connect timed out\n");
+ return -2;
+ } else if (rc < 0) {
+ log_err_errno("select failed");
+ return -3;
+ }
+
+ if (getsockopt(sd, SOL_SOCKET, SO_ERROR, &val, (socklen_t *)&sz) < 0) {
+ log_err_errno("getsockopt(SO_ERROR) failed");
+ return -4;
+ }
+
+ if (val != 0) {
+ log_error("connect failed: %d: %s\n", val, strerror(val));
+ return -1;
+ }
+
+ return 0;
+}
+
+static int connectsock(void *addr, socklen_t alen, struct sock_args *args)
+{
+ int sd, rc = -1;
+ long flags;
+
+ sd = socket(args->version, args->type, args->protocol);
+ if (sd < 0) {
+ log_err_errno("Failed to create socket");
+ return -1;
+ }
+
+ flags = fcntl(sd, F_GETFL);
+ if ((flags < 0) || (fcntl(sd, F_SETFL, flags|O_NONBLOCK) < 0)) {
+ log_err_errno("Failed to set non-blocking option");
+ goto err;
+ }
+
+ if (set_reuseport(sd) != 0)
+ goto err;
+
+ if (args->dev && bind_to_device(sd, args->dev) != 0)
+ goto err;
+ else if (args->use_setsockopt &&
+ set_unicast_if(sd, args->ifindex, args->version))
+ goto err;
+
+ if (args->has_local_ip && bind_socket(sd, args))
+ goto err;
+
+ if (args->type != SOCK_STREAM)
+ goto out;
+
+ if (args->password && tcp_md5sig(sd, addr, alen, args))
+ goto err;
+
+ if (args->bind_test_only)
+ goto out;
+
+ if (connect(sd, addr, alen) < 0) {
+ if (errno != EINPROGRESS) {
+ log_err_errno("Failed to connect to remote host");
+ rc = -1;
+ goto err;
+ }
+ rc = wait_for_connect(sd);
+ if (rc < 0)
+ goto err;
+ }
+out:
+ return sd;
+
+err:
+ close(sd);
+ return rc;
+}
+
+static int do_client(struct sock_args *args)
+{
+ struct sockaddr_in sin = {
+ .sin_family = AF_INET,
+ };
+ struct sockaddr_in6 sin6 = {
+ .sin6_family = AF_INET6,
+ };
+ void *addr;
+ int alen;
+ int rc = 0;
+ int sd;
+
+ if (!args->has_remote_ip && !args->has_grp) {
+ fprintf(stderr, "remote IP or multicast group not given\n");
+ return 1;
+ }
+
+ switch (args->version) {
+ case AF_INET:
+ sin.sin_port = htons(args->port);
+ if (args->has_grp)
+ sin.sin_addr = args->grp;
+ else
+ sin.sin_addr = args->remote_addr.in;
+ addr = &sin;
+ alen = sizeof(sin);
+ break;
+ case AF_INET6:
+ sin6.sin6_port = htons(args->port);
+ sin6.sin6_addr = args->remote_addr.in6;
+ sin6.sin6_scope_id = args->scope_id;
+ addr = &sin6;
+ alen = sizeof(sin6);
+ break;
+ }
+
+ if (args->has_grp)
+ sd = msock_client(args);
+ else
+ sd = connectsock(addr, alen, args);
+
+ if (sd < 0)
+ return -sd;
+
+ if (args->bind_test_only)
+ goto out;
+
+ if (args->type == SOCK_STREAM) {
+ rc = show_sockstat(sd, args);
+ if (rc != 0)
+ goto out;
+ }
+
+ rc = msg_loop(1, sd, addr, alen, args);
+
+out:
+ close(sd);
+
+ return rc;
+}
+
+enum addr_type {
+ ADDR_TYPE_LOCAL,
+ ADDR_TYPE_REMOTE,
+ ADDR_TYPE_MCAST,
+ ADDR_TYPE_EXPECTED_LOCAL,
+ ADDR_TYPE_EXPECTED_REMOTE,
+ ADDR_TYPE_MD5_PREFIX,
+};
+
+static int convert_addr(struct sock_args *args, const char *_str,
+ enum addr_type atype)
+{
+ int pfx_len_max = args->version == AF_INET6 ? 128 : 32;
+ int family = args->version;
+ char *str, *dev, *sep;
+ struct in6_addr *in6;
+ struct in_addr *in;
+ const char *desc;
+ void *addr;
+ int rc = 0;
+
+ str = strdup(_str);
+ if (!str)
+ return -ENOMEM;
+
+ switch (atype) {
+ case ADDR_TYPE_LOCAL:
+ desc = "local";
+ addr = &args->local_addr;
+ break;
+ case ADDR_TYPE_REMOTE:
+ desc = "remote";
+ addr = &args->remote_addr;
+ break;
+ case ADDR_TYPE_MCAST:
+ desc = "mcast grp";
+ addr = &args->grp;
+ break;
+ case ADDR_TYPE_EXPECTED_LOCAL:
+ desc = "expected local";
+ addr = &args->expected_laddr;
+ break;
+ case ADDR_TYPE_EXPECTED_REMOTE:
+ desc = "expected remote";
+ addr = &args->expected_raddr;
+ break;
+ case ADDR_TYPE_MD5_PREFIX:
+ desc = "md5 prefix";
+ if (family == AF_INET) {
+ args->md5_prefix.v4.sin_family = AF_INET;
+ addr = &args->md5_prefix.v4.sin_addr;
+ } else if (family == AF_INET6) {
+ args->md5_prefix.v6.sin6_family = AF_INET6;
+ addr = &args->md5_prefix.v6.sin6_addr;
+ } else
+ return 1;
+
+ sep = strchr(str, '/');
+ if (sep) {
+ *sep = '\0';
+ sep++;
+ if (str_to_uint(sep, 1, pfx_len_max,
+ &args->prefix_len) != 0) {
+ fprintf(stderr, "Invalid port\n");
+ return 1;
+ }
+ } else {
+ args->prefix_len = pfx_len_max;
+ }
+ break;
+ default:
+ log_error("unknown address type");
+ exit(1);
+ }
+
+ switch (family) {
+ case AF_INET:
+ in = (struct in_addr *) addr;
+ if (str) {
+ if (inet_pton(AF_INET, str, in) == 0) {
+ log_error("Invalid %s IP address\n", desc);
+ rc = -1;
+ goto out;
+ }
+ } else {
+ in->s_addr = htonl(INADDR_ANY);
+ }
+ break;
+
+ case AF_INET6:
+ dev = strchr(str, '%');
+ if (dev) {
+ *dev = '\0';
+ dev++;
+ }
+
+ in6 = (struct in6_addr *) addr;
+ if (str) {
+ if (inet_pton(AF_INET6, str, in6) == 0) {
+ log_error("Invalid %s IPv6 address\n", desc);
+ rc = -1;
+ goto out;
+ }
+ } else {
+ *in6 = in6addr_any;
+ }
+ if (dev) {
+ args->scope_id = get_ifidx(dev);
+ if (args->scope_id < 0) {
+ log_error("Invalid scope on %s IPv6 address\n",
+ desc);
+ rc = -1;
+ goto out;
+ }
+ }
+ break;
+
+ default:
+ log_error("Invalid address family\n");
+ }
+
+out:
+ free(str);
+ return rc;
+}
+
+static char *random_msg(int len)
+{
+ int i, n = 0, olen = len + 1;
+ char *m;
+
+ if (len <= 0)
+ return NULL;
+
+ m = malloc(olen);
+ if (!m)
+ return NULL;
+
+ while (len > 26) {
+ i = snprintf(m + n, olen - n, "%.26s",
+ "abcdefghijklmnopqrstuvwxyz");
+ n += i;
+ len -= i;
+ }
+ i = snprintf(m + n, olen - n, "%.*s", len,
+ "abcdefghijklmnopqrstuvwxyz");
+ return m;
+}
+
+#define GETOPT_STR "sr:l:p:t:g:P:DRn:M:m:d:SCi6L:0:1:2:Fbq"
+
+static void print_usage(char *prog)
+{
+ printf(
+ "usage: %s OPTS\n"
+ "Required:\n"
+ " -r addr remote address to connect to (client mode only)\n"
+ " -p port port to connect to (client mode)/listen on (server mode)\n"
+ " (default: %d)\n"
+ " -s server mode (default: client mode)\n"
+ " -t timeout seconds (default: none)\n"
+ "\n"
+ "Optional:\n"
+ " -F Restart server loop\n"
+ " -6 IPv6 (default is IPv4)\n"
+ " -P proto protocol for socket: icmp, ospf (default: none)\n"
+ " -D|R datagram (D) / raw (R) socket (default stream)\n"
+ " -l addr local address to bind to\n"
+ "\n"
+ " -d dev bind socket to given device name\n"
+ " -S use setsockopt (IP_UNICAST_IF or IP_MULTICAST_IF)\n"
+ " to set device binding\n"
+ " -C use cmsg and IP_PKTINFO to specify device binding\n"
+ "\n"
+ " -L len send random message of given length\n"
+ " -n num number of times to send message\n"
+ "\n"
+ " -M password use MD5 sum protection\n"
+ " -m prefix/len prefix and length to use for MD5 key\n"
+ " -g grp multicast group (e.g., 239.1.1.1)\n"
+ " -i interactive mode (default is echo and terminate)\n"
+ "\n"
+ " -0 addr Expected local address\n"
+ " -1 addr Expected remote address\n"
+ " -2 dev Expected device name (or index) to receive packet\n"
+ "\n"
+ " -b Bind test only.\n"
+ " -q Be quiet. Run test without printing anything.\n"
+ , prog, DEFAULT_PORT);
+}
+
+int main(int argc, char *argv[])
+{
+ struct sock_args args = {
+ .version = AF_INET,
+ .type = SOCK_STREAM,
+ .port = DEFAULT_PORT,
+ };
+ struct protoent *pe;
+ unsigned int tmp;
+ int forever = 0;
+
+ /* process inputs */
+ extern char *optarg;
+ int rc = 0;
+
+ /*
+ * process input args
+ */
+
+ while ((rc = getopt(argc, argv, GETOPT_STR)) != -1) {
+ switch (rc) {
+ case 's':
+ server_mode = 1;
+ break;
+ case 'F':
+ forever = 1;
+ break;
+ case 'l':
+ args.has_local_ip = 1;
+ if (convert_addr(&args, optarg, ADDR_TYPE_LOCAL) < 0)
+ return 1;
+ break;
+ case 'r':
+ args.has_remote_ip = 1;
+ if (convert_addr(&args, optarg, ADDR_TYPE_REMOTE) < 0)
+ return 1;
+ break;
+ case 'p':
+ if (str_to_uint(optarg, 1, 65535, &tmp) != 0) {
+ fprintf(stderr, "Invalid port\n");
+ return 1;
+ }
+ args.port = (unsigned short) tmp;
+ break;
+ case 't':
+ if (str_to_uint(optarg, 0, INT_MAX,
+ &prog_timeout) != 0) {
+ fprintf(stderr, "Invalid timeout\n");
+ return 1;
+ }
+ break;
+ case 'D':
+ args.type = SOCK_DGRAM;
+ break;
+ case 'R':
+ args.type = SOCK_RAW;
+ args.port = 0;
+ if (!args.protocol)
+ args.protocol = IPPROTO_RAW;
+ break;
+ case 'P':
+ pe = getprotobyname(optarg);
+ if (pe) {
+ args.protocol = pe->p_proto;
+ } else {
+ if (str_to_uint(optarg, 0, 0xffff, &tmp) != 0) {
+ fprintf(stderr, "Invalid protocol\n");
+ return 1;
+ }
+ args.protocol = tmp;
+ }
+ break;
+ case 'n':
+ iter = atoi(optarg);
+ break;
+ case 'L':
+ msg = random_msg(atoi(optarg));
+ break;
+ case 'M':
+ args.password = optarg;
+ break;
+ case 'm':
+ if (convert_addr(&args, optarg, ADDR_TYPE_MD5_PREFIX) < 0)
+ return 1;
+ break;
+ case 'S':
+ args.use_setsockopt = 1;
+ break;
+ case 'C':
+ args.use_cmsg = 1;
+ break;
+ case 'd':
+ args.dev = optarg;
+ args.ifindex = get_ifidx(optarg);
+ if (args.ifindex < 0) {
+ fprintf(stderr, "Invalid device name\n");
+ return 1;
+ }
+ break;
+ case 'i':
+ interactive = 1;
+ break;
+ case 'g':
+ args.has_grp = 1;
+ if (convert_addr(&args, optarg, ADDR_TYPE_MCAST) < 0)
+ return 1;
+ args.type = SOCK_DGRAM;
+ break;
+ case '6':
+ args.version = AF_INET6;
+ break;
+ case 'b':
+ args.bind_test_only = 1;
+ break;
+ case '0':
+ args.has_expected_laddr = 1;
+ if (convert_addr(&args, optarg,
+ ADDR_TYPE_EXPECTED_LOCAL))
+ return 1;
+ break;
+ case '1':
+ args.has_expected_raddr = 1;
+ if (convert_addr(&args, optarg,
+ ADDR_TYPE_EXPECTED_REMOTE))
+ return 1;
+
+ break;
+ case '2':
+ if (str_to_uint(optarg, 0, INT_MAX, &tmp) == 0) {
+ args.expected_ifindex = (int)tmp;
+ } else {
+ args.expected_ifindex = get_ifidx(optarg);
+ if (args.expected_ifindex < 0) {
+ fprintf(stderr,
+ "Invalid expected device\n");
+ return 1;
+ }
+ }
+ break;
+ case 'q':
+ quiet = 1;
+ break;
+ default:
+ print_usage(argv[0]);
+ return 1;
+ }
+ }
+
+ if (args.password &&
+ ((!args.has_remote_ip && !args.prefix_len) || args.type != SOCK_STREAM)) {
+ log_error("MD5 passwords apply to TCP only and require a remote ip for the password\n");
+ return 1;
+ }
+
+ if (args.prefix_len && !args.password) {
+ log_error("Prefix range for MD5 protection specified without a password\n");
+ return 1;
+ }
+
+ if ((args.use_setsockopt || args.use_cmsg) && !args.ifindex) {
+ fprintf(stderr, "Device binding not specified\n");
+ return 1;
+ }
+ if (args.use_setsockopt || args.use_cmsg)
+ args.dev = NULL;
+
+ if (iter == 0) {
+ fprintf(stderr, "Invalid number of messages to send\n");
+ return 1;
+ }
+
+ if (args.type == SOCK_STREAM && !args.protocol)
+ args.protocol = IPPROTO_TCP;
+ if (args.type == SOCK_DGRAM && !args.protocol)
+ args.protocol = IPPROTO_UDP;
+
+ if ((args.type == SOCK_STREAM || args.type == SOCK_DGRAM) &&
+ args.port == 0) {
+ fprintf(stderr, "Invalid port number\n");
+ return 1;
+ }
+
+ if (!server_mode && !args.has_grp &&
+ !args.has_remote_ip && !args.has_local_ip) {
+ fprintf(stderr,
+ "Local (server mode) or remote IP (client IP) required\n");
+ return 1;
+ }
+
+ if (interactive) {
+ prog_timeout = 0;
+ msg = NULL;
+ }
+
+ if (server_mode) {
+ do {
+ rc = do_server(&args);
+ } while (forever);
+
+ return rc;
+ }
+ return do_client(&args);
+}
diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh
new file mode 100755
index 000000000..3253fdc78
--- /dev/null
+++ b/tools/testing/selftests/net/pmtu.sh
@@ -0,0 +1,1924 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Check that route PMTU values match expectations, and that initial device MTU
+# values are assigned correctly
+#
+# Tests currently implemented:
+#
+# - pmtu_ipv4
+# Set up two namespaces, A and B, with two paths between them over routers
+# R1 and R2 (also implemented with namespaces), with different MTUs:
+#
+# segment a_r1 segment b_r1 a_r1: 2000
+# .--------------R1--------------. b_r1: 1400
+# A B a_r2: 2000
+# '--------------R2--------------' b_r2: 1500
+# segment a_r2 segment b_r2
+#
+# Check that PMTU exceptions with the correct PMTU are created. Then
+# decrease and increase the MTU of the local link for one of the paths,
+# A to R1, checking that route exception PMTU changes accordingly over
+# this path. Also check that locked exceptions are created when an ICMP
+# message advertising a PMTU smaller than net.ipv4.route.min_pmtu is
+# received
+#
+# - pmtu_ipv6
+# Same as pmtu_ipv4, except for locked PMTU tests, using IPv6
+#
+# - pmtu_ipv4_vxlan4_exception
+# Set up the same network topology as pmtu_ipv4, create a VXLAN tunnel
+# over IPv4 between A and B, routed via R1. On the link between R1 and B,
+# set a MTU lower than the VXLAN MTU and the MTU on the link between A and
+# R1. Send IPv4 packets, exceeding the MTU between R1 and B, over VXLAN
+# from A to B and check that the PMTU exception is created with the right
+# value on A
+#
+# - pmtu_ipv6_vxlan4_exception
+# Same as pmtu_ipv4_vxlan4_exception, but send IPv6 packets from A to B
+#
+# - pmtu_ipv4_vxlan6_exception
+# Same as pmtu_ipv4_vxlan4_exception, but use IPv6 transport from A to B
+#
+# - pmtu_ipv6_vxlan6_exception
+# Same as pmtu_ipv4_vxlan6_exception, but send IPv6 packets from A to B
+#
+# - pmtu_ipv4_geneve4_exception
+# Same as pmtu_ipv4_vxlan4_exception, but using a GENEVE tunnel instead of
+# VXLAN
+#
+# - pmtu_ipv6_geneve4_exception
+# Same as pmtu_ipv6_vxlan4_exception, but using a GENEVE tunnel instead of
+# VXLAN
+#
+# - pmtu_ipv4_geneve6_exception
+# Same as pmtu_ipv4_vxlan6_exception, but using a GENEVE tunnel instead of
+# VXLAN
+#
+# - pmtu_ipv6_geneve6_exception
+# Same as pmtu_ipv6_vxlan6_exception, but using a GENEVE tunnel instead of
+# VXLAN
+#
+# - pmtu_ipv{4,6}_br_vxlan{4,6}_exception
+# Set up three namespaces, A, B, and C, with routing between A and B over
+# R1. R2 is unused in these tests. A has a veth connection to C, and is
+# connected to B via a VXLAN endpoint, which is directly bridged to C.
+# MTU on the B-R1 link is lower than other MTUs.
+#
+# Check that both C and A are able to communicate with B over the VXLAN
+# tunnel, and that PMTU exceptions with the correct values are created.
+#
+# segment a_r1 segment b_r1 b_r1: 4000
+# .--------------R1--------------. everything
+# C---veth A B else: 5000
+# ' bridge |
+# '---- - - - - - VXLAN - - - - - - - '
+#
+# - pmtu_ipv{4,6}_br_geneve{4,6}_exception
+# Same as pmtu_ipv{4,6}_br_vxlan{4,6}_exception, with a GENEVE tunnel
+# instead.
+#
+# - pmtu_ipv{4,6}_ovs_vxlan{4,6}_exception
+# Set up two namespaces, B, and C, with routing between the init namespace
+# and B over R1. A and R2 are unused in these tests. The init namespace
+# has a veth connection to C, and is connected to B via a VXLAN endpoint,
+# which is handled by Open vSwitch and bridged to C. MTU on the B-R1 link
+# is lower than other MTUs.
+#
+# Check that C is able to communicate with B over the VXLAN tunnel, and
+# that PMTU exceptions with the correct values are created.
+#
+# segment a_r1 segment b_r1 b_r1: 4000
+# .--------------R1--------------. everything
+# C---veth init B else: 5000
+# '- ovs |
+# '---- - - - - - VXLAN - - - - - - - '
+#
+# - pmtu_ipv{4,6}_ovs_geneve{4,6}_exception
+# Same as pmtu_ipv{4,6}_ovs_vxlan{4,6}_exception, with a GENEVE tunnel
+# instead.
+#
+# - pmtu_ipv{4,6}_fou{4,6}_exception
+# Same as pmtu_ipv4_vxlan4, but using a direct IPv4/IPv6 encapsulation
+# (FoU) over IPv4/IPv6, instead of VXLAN
+#
+# - pmtu_ipv{4,6}_fou{4,6}_exception
+# Same as pmtu_ipv4_vxlan4, but using a generic UDP IPv4/IPv6
+# encapsulation (GUE) over IPv4/IPv6, instead of VXLAN
+#
+# - pmtu_ipv{4,6}_ipv{4,6}_exception
+# Same as pmtu_ipv4_vxlan4, but using a IPv4/IPv6 tunnel over IPv4/IPv6,
+# instead of VXLAN
+#
+# - pmtu_vti4_exception
+# Set up vti tunnel on top of veth, with xfrm states and policies, in two
+# namespaces with matching endpoints. Check that route exception is not
+# created if link layer MTU is not exceeded, then exceed it and check that
+# exception is created with the expected PMTU. The approach described
+# below for IPv6 doesn't apply here, because, on IPv4, administrative MTU
+# changes alone won't affect PMTU
+#
+# - pmtu_vti6_exception
+# Set up vti6 tunnel on top of veth, with xfrm states and policies, in two
+# namespaces with matching endpoints. Check that route exception is
+# created by exceeding link layer MTU with ping to other endpoint. Then
+# decrease and increase MTU of tunnel, checking that route exception PMTU
+# changes accordingly
+#
+# - pmtu_vti4_default_mtu
+# Set up vti4 tunnel on top of veth, in two namespaces with matching
+# endpoints. Check that MTU assigned to vti interface is the MTU of the
+# lower layer (veth) minus additional lower layer headers (zero, for veth)
+# minus IPv4 header length
+#
+# - pmtu_vti6_default_mtu
+# Same as above, for IPv6
+#
+# - pmtu_vti4_link_add_mtu
+# Set up vti4 interface passing MTU value at link creation, check MTU is
+# configured, and that link is not created with invalid MTU values
+#
+# - pmtu_vti6_link_add_mtu
+# Same as above, for IPv6
+#
+# - pmtu_vti6_link_change_mtu
+# Set up two dummy interfaces with different MTUs, create a vti6 tunnel
+# and check that configured MTU is used on link creation and changes, and
+# that MTU is properly calculated instead when MTU is not configured from
+# userspace
+#
+# - cleanup_ipv4_exception
+# Similar to pmtu_ipv4_vxlan4_exception, but explicitly generate PMTU
+# exceptions on multiple CPUs and check that the veth device tear-down
+# happens in a timely manner
+#
+# - cleanup_ipv6_exception
+# Same as above, but use IPv6 transport from A to B
+#
+# - list_flush_ipv4_exception
+# Using the same topology as in pmtu_ipv4, create exceptions, and check
+# they are shown when listing exception caches, gone after flushing them
+#
+# - list_flush_ipv6_exception
+# Using the same topology as in pmtu_ipv6, create exceptions, and check
+# they are shown when listing exception caches, gone after flushing them
+#
+# - pmtu_ipv4_route_change
+# Use the same topology as in pmtu_ipv4, but issue a route replacement
+# command and delete the corresponding device afterward. This tests for
+# proper cleanup of the PMTU exceptions by the route replacement path.
+# Device unregistration should complete successfully
+#
+# - pmtu_ipv6_route_change
+# Same as above but with IPv6
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+PAUSE_ON_FAIL=no
+VERBOSE=0
+TRACING=0
+
+# Some systems don't have a ping6 binary anymore
+which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
+
+# Name Description re-run with nh
+tests="
+ pmtu_ipv4_exception ipv4: PMTU exceptions 1
+ pmtu_ipv6_exception ipv6: PMTU exceptions 1
+ pmtu_ipv4_vxlan4_exception IPv4 over vxlan4: PMTU exceptions 1
+ pmtu_ipv6_vxlan4_exception IPv6 over vxlan4: PMTU exceptions 1
+ pmtu_ipv4_vxlan6_exception IPv4 over vxlan6: PMTU exceptions 1
+ pmtu_ipv6_vxlan6_exception IPv6 over vxlan6: PMTU exceptions 1
+ pmtu_ipv4_geneve4_exception IPv4 over geneve4: PMTU exceptions 1
+ pmtu_ipv6_geneve4_exception IPv6 over geneve4: PMTU exceptions 1
+ pmtu_ipv4_geneve6_exception IPv4 over geneve6: PMTU exceptions 1
+ pmtu_ipv6_geneve6_exception IPv6 over geneve6: PMTU exceptions 1
+ pmtu_ipv4_br_vxlan4_exception IPv4, bridged vxlan4: PMTU exceptions 1
+ pmtu_ipv6_br_vxlan4_exception IPv6, bridged vxlan4: PMTU exceptions 1
+ pmtu_ipv4_br_vxlan6_exception IPv4, bridged vxlan6: PMTU exceptions 1
+ pmtu_ipv6_br_vxlan6_exception IPv6, bridged vxlan6: PMTU exceptions 1
+ pmtu_ipv4_br_geneve4_exception IPv4, bridged geneve4: PMTU exceptions 1
+ pmtu_ipv6_br_geneve4_exception IPv6, bridged geneve4: PMTU exceptions 1
+ pmtu_ipv4_br_geneve6_exception IPv4, bridged geneve6: PMTU exceptions 1
+ pmtu_ipv6_br_geneve6_exception IPv6, bridged geneve6: PMTU exceptions 1
+ pmtu_ipv4_ovs_vxlan4_exception IPv4, OVS vxlan4: PMTU exceptions 1
+ pmtu_ipv6_ovs_vxlan4_exception IPv6, OVS vxlan4: PMTU exceptions 1
+ pmtu_ipv4_ovs_vxlan6_exception IPv4, OVS vxlan6: PMTU exceptions 1
+ pmtu_ipv6_ovs_vxlan6_exception IPv6, OVS vxlan6: PMTU exceptions 1
+ pmtu_ipv4_ovs_geneve4_exception IPv4, OVS geneve4: PMTU exceptions 1
+ pmtu_ipv6_ovs_geneve4_exception IPv6, OVS geneve4: PMTU exceptions 1
+ pmtu_ipv4_ovs_geneve6_exception IPv4, OVS geneve6: PMTU exceptions 1
+ pmtu_ipv6_ovs_geneve6_exception IPv6, OVS geneve6: PMTU exceptions 1
+ pmtu_ipv4_fou4_exception IPv4 over fou4: PMTU exceptions 1
+ pmtu_ipv6_fou4_exception IPv6 over fou4: PMTU exceptions 1
+ pmtu_ipv4_fou6_exception IPv4 over fou6: PMTU exceptions 1
+ pmtu_ipv6_fou6_exception IPv6 over fou6: PMTU exceptions 1
+ pmtu_ipv4_gue4_exception IPv4 over gue4: PMTU exceptions 1
+ pmtu_ipv6_gue4_exception IPv6 over gue4: PMTU exceptions 1
+ pmtu_ipv4_gue6_exception IPv4 over gue6: PMTU exceptions 1
+ pmtu_ipv6_gue6_exception IPv6 over gue6: PMTU exceptions 1
+ pmtu_ipv4_ipv4_exception IPv4 over IPv4: PMTU exceptions 1
+ pmtu_ipv6_ipv4_exception IPv6 over IPv4: PMTU exceptions 1
+ pmtu_ipv4_ipv6_exception IPv4 over IPv6: PMTU exceptions 1
+ pmtu_ipv6_ipv6_exception IPv6 over IPv6: PMTU exceptions 1
+ pmtu_vti6_exception vti6: PMTU exceptions 0
+ pmtu_vti4_exception vti4: PMTU exceptions 0
+ pmtu_vti4_default_mtu vti4: default MTU assignment 0
+ pmtu_vti6_default_mtu vti6: default MTU assignment 0
+ pmtu_vti4_link_add_mtu vti4: MTU setting on link creation 0
+ pmtu_vti6_link_add_mtu vti6: MTU setting on link creation 0
+ pmtu_vti6_link_change_mtu vti6: MTU changes on link changes 0
+ cleanup_ipv4_exception ipv4: cleanup of cached exceptions 1
+ cleanup_ipv6_exception ipv6: cleanup of cached exceptions 1
+ list_flush_ipv4_exception ipv4: list and flush cached exceptions 1
+ list_flush_ipv6_exception ipv6: list and flush cached exceptions 1
+ pmtu_ipv4_route_change ipv4: PMTU exception w/route replace 1
+ pmtu_ipv6_route_change ipv6: PMTU exception w/route replace 1"
+
+NS_A="ns-A"
+NS_B="ns-B"
+NS_C="ns-C"
+NS_R1="ns-R1"
+NS_R2="ns-R2"
+ns_a="ip netns exec ${NS_A}"
+ns_b="ip netns exec ${NS_B}"
+ns_c="ip netns exec ${NS_C}"
+ns_r1="ip netns exec ${NS_R1}"
+ns_r2="ip netns exec ${NS_R2}"
+
+# Addressing and routing for tests with routers: four network segments, with
+# index SEGMENT between 1 and 4, a common prefix (PREFIX4 or PREFIX6) and an
+# identifier ID, which is 1 for hosts (A and B), 2 for routers (R1 and R2).
+# Addresses are:
+# - IPv4: PREFIX4.SEGMENT.ID (/24)
+# - IPv6: PREFIX6:SEGMENT::ID (/64)
+prefix4="10.0"
+prefix6="fc00"
+a_r1=1
+a_r2=2
+b_r1=3
+b_r2=4
+# ns peer segment
+routing_addrs="
+ A R1 ${a_r1}
+ A R2 ${a_r2}
+ B R1 ${b_r1}
+ B R2 ${b_r2}
+"
+# Traffic from A to B goes through R1 by default, and through R2, if destined to
+# B's address on the b_r2 segment.
+# Traffic from B to A goes through R1.
+# ns destination gateway
+routes="
+ A default ${prefix4}.${a_r1}.2
+ A ${prefix4}.${b_r2}.1 ${prefix4}.${a_r2}.2
+ B default ${prefix4}.${b_r1}.2
+
+ A default ${prefix6}:${a_r1}::2
+ A ${prefix6}:${b_r2}::1 ${prefix6}:${a_r2}::2
+ B default ${prefix6}:${b_r1}::2
+"
+
+USE_NH="no"
+# ns family nh id destination gateway
+nexthops="
+ A 4 41 ${prefix4}.${a_r1}.2 veth_A-R1
+ A 4 42 ${prefix4}.${a_r2}.2 veth_A-R2
+ B 4 41 ${prefix4}.${b_r1}.2 veth_B-R1
+
+ A 6 61 ${prefix6}:${a_r1}::2 veth_A-R1
+ A 6 62 ${prefix6}:${a_r2}::2 veth_A-R2
+ B 6 61 ${prefix6}:${b_r1}::2 veth_B-R1
+"
+
+# nexthop id correlates to id in nexthops config above
+# ns family prefix nh id
+routes_nh="
+ A 4 default 41
+ A 4 ${prefix4}.${b_r2}.1 42
+ B 4 default 41
+
+ A 6 default 61
+ A 6 ${prefix6}:${b_r2}::1 62
+ B 6 default 61
+"
+
+veth4_a_addr="192.168.1.1"
+veth4_b_addr="192.168.1.2"
+veth4_c_addr="192.168.2.10"
+veth4_mask="24"
+veth6_a_addr="fd00:1::a"
+veth6_b_addr="fd00:1::b"
+veth6_c_addr="fd00:2::c"
+veth6_mask="64"
+
+tunnel4_a_addr="192.168.2.1"
+tunnel4_b_addr="192.168.2.2"
+tunnel4_mask="24"
+tunnel6_a_addr="fd00:2::a"
+tunnel6_b_addr="fd00:2::b"
+tunnel6_mask="64"
+
+dummy6_0_prefix="fc00:1000::"
+dummy6_1_prefix="fc00:1001::"
+dummy6_mask="64"
+
+err_buf=
+tcpdump_pids=
+
+err() {
+ err_buf="${err_buf}${1}
+"
+}
+
+err_flush() {
+ echo -n "${err_buf}"
+ err_buf=
+}
+
+run_cmd() {
+ cmd="$*"
+
+ if [ "$VERBOSE" = "1" ]; then
+ printf " COMMAND: $cmd\n"
+ fi
+
+ out="$($cmd 2>&1)"
+ rc=$?
+ if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+ echo " $out"
+ echo
+ fi
+
+ return $rc
+}
+
+# Find the auto-generated name for this namespace
+nsname() {
+ eval echo \$NS_$1
+}
+
+setup_fou_or_gue() {
+ outer="${1}"
+ inner="${2}"
+ encap="${3}"
+
+ if [ "${outer}" = "4" ]; then
+ modprobe fou || return 2
+ a_addr="${prefix4}.${a_r1}.1"
+ b_addr="${prefix4}.${b_r1}.1"
+ if [ "${inner}" = "4" ]; then
+ type="ipip"
+ ipproto="4"
+ else
+ type="sit"
+ ipproto="41"
+ fi
+ else
+ modprobe fou6 || return 2
+ a_addr="${prefix6}:${a_r1}::1"
+ b_addr="${prefix6}:${b_r1}::1"
+ if [ "${inner}" = "4" ]; then
+ type="ip6tnl"
+ mode="mode ipip6"
+ ipproto="4 -6"
+ else
+ type="ip6tnl"
+ mode="mode ip6ip6"
+ ipproto="41 -6"
+ fi
+ fi
+
+ run_cmd ${ns_a} ip fou add port 5555 ipproto ${ipproto} || return 2
+ run_cmd ${ns_a} ip link add ${encap}_a type ${type} ${mode} local ${a_addr} remote ${b_addr} encap ${encap} encap-sport auto encap-dport 5556 || return 2
+
+ run_cmd ${ns_b} ip fou add port 5556 ipproto ${ipproto}
+ run_cmd ${ns_b} ip link add ${encap}_b type ${type} ${mode} local ${b_addr} remote ${a_addr} encap ${encap} encap-sport auto encap-dport 5555
+
+ if [ "${inner}" = "4" ]; then
+ run_cmd ${ns_a} ip addr add ${tunnel4_a_addr}/${tunnel4_mask} dev ${encap}_a
+ run_cmd ${ns_b} ip addr add ${tunnel4_b_addr}/${tunnel4_mask} dev ${encap}_b
+ else
+ run_cmd ${ns_a} ip addr add ${tunnel6_a_addr}/${tunnel6_mask} dev ${encap}_a
+ run_cmd ${ns_b} ip addr add ${tunnel6_b_addr}/${tunnel6_mask} dev ${encap}_b
+ fi
+
+ run_cmd ${ns_a} ip link set ${encap}_a up
+ run_cmd ${ns_b} ip link set ${encap}_b up
+}
+
+setup_fou44() {
+ setup_fou_or_gue 4 4 fou
+}
+
+setup_fou46() {
+ setup_fou_or_gue 4 6 fou
+}
+
+setup_fou64() {
+ setup_fou_or_gue 6 4 fou
+}
+
+setup_fou66() {
+ setup_fou_or_gue 6 6 fou
+}
+
+setup_gue44() {
+ setup_fou_or_gue 4 4 gue
+}
+
+setup_gue46() {
+ setup_fou_or_gue 4 6 gue
+}
+
+setup_gue64() {
+ setup_fou_or_gue 6 4 gue
+}
+
+setup_gue66() {
+ setup_fou_or_gue 6 6 gue
+}
+
+setup_ipvX_over_ipvY() {
+ inner=${1}
+ outer=${2}
+
+ if [ "${outer}" -eq 4 ]; then
+ a_addr="${prefix4}.${a_r1}.1"
+ b_addr="${prefix4}.${b_r1}.1"
+ if [ "${inner}" -eq 4 ]; then
+ type="ipip"
+ mode="ipip"
+ else
+ type="sit"
+ mode="ip6ip"
+ fi
+ else
+ a_addr="${prefix6}:${a_r1}::1"
+ b_addr="${prefix6}:${b_r1}::1"
+ type="ip6tnl"
+ if [ "${inner}" -eq 4 ]; then
+ mode="ipip6"
+ else
+ mode="ip6ip6"
+ fi
+ fi
+
+ run_cmd ${ns_a} ip link add ip_a type ${type} local ${a_addr} remote ${b_addr} mode ${mode} || return 2
+ run_cmd ${ns_b} ip link add ip_b type ${type} local ${b_addr} remote ${a_addr} mode ${mode}
+
+ run_cmd ${ns_a} ip link set ip_a up
+ run_cmd ${ns_b} ip link set ip_b up
+
+ if [ "${inner}" = "4" ]; then
+ run_cmd ${ns_a} ip addr add ${tunnel4_a_addr}/${tunnel4_mask} dev ip_a
+ run_cmd ${ns_b} ip addr add ${tunnel4_b_addr}/${tunnel4_mask} dev ip_b
+ else
+ run_cmd ${ns_a} ip addr add ${tunnel6_a_addr}/${tunnel6_mask} dev ip_a
+ run_cmd ${ns_b} ip addr add ${tunnel6_b_addr}/${tunnel6_mask} dev ip_b
+ fi
+}
+
+setup_ip4ip4() {
+ setup_ipvX_over_ipvY 4 4
+}
+
+setup_ip6ip4() {
+ setup_ipvX_over_ipvY 6 4
+}
+
+setup_ip4ip6() {
+ setup_ipvX_over_ipvY 4 6
+}
+
+setup_ip6ip6() {
+ setup_ipvX_over_ipvY 6 6
+}
+
+setup_namespaces() {
+ for n in ${NS_A} ${NS_B} ${NS_C} ${NS_R1} ${NS_R2}; do
+ ip netns add ${n} || return 1
+
+ # Disable DAD, so that we don't have to wait to use the
+ # configured IPv6 addresses
+ ip netns exec ${n} sysctl -q net/ipv6/conf/default/accept_dad=0
+ done
+}
+
+setup_veth() {
+ run_cmd ${ns_a} ip link add veth_a type veth peer name veth_b || return 1
+ run_cmd ${ns_a} ip link set veth_b netns ${NS_B}
+
+ run_cmd ${ns_a} ip addr add ${veth4_a_addr}/${veth4_mask} dev veth_a
+ run_cmd ${ns_b} ip addr add ${veth4_b_addr}/${veth4_mask} dev veth_b
+
+ run_cmd ${ns_a} ip addr add ${veth6_a_addr}/${veth6_mask} dev veth_a
+ run_cmd ${ns_b} ip addr add ${veth6_b_addr}/${veth6_mask} dev veth_b
+
+ run_cmd ${ns_a} ip link set veth_a up
+ run_cmd ${ns_b} ip link set veth_b up
+}
+
+setup_vti() {
+ proto=${1}
+ veth_a_addr="${2}"
+ veth_b_addr="${3}"
+ vti_a_addr="${4}"
+ vti_b_addr="${5}"
+ vti_mask=${6}
+
+ [ ${proto} -eq 6 ] && vti_type="vti6" || vti_type="vti"
+
+ run_cmd ${ns_a} ip link add vti${proto}_a type ${vti_type} local ${veth_a_addr} remote ${veth_b_addr} key 10 || return 1
+ run_cmd ${ns_b} ip link add vti${proto}_b type ${vti_type} local ${veth_b_addr} remote ${veth_a_addr} key 10
+
+ run_cmd ${ns_a} ip addr add ${vti_a_addr}/${vti_mask} dev vti${proto}_a
+ run_cmd ${ns_b} ip addr add ${vti_b_addr}/${vti_mask} dev vti${proto}_b
+
+ run_cmd ${ns_a} ip link set vti${proto}_a up
+ run_cmd ${ns_b} ip link set vti${proto}_b up
+}
+
+setup_vti4() {
+ setup_vti 4 ${veth4_a_addr} ${veth4_b_addr} ${tunnel4_a_addr} ${tunnel4_b_addr} ${tunnel4_mask}
+}
+
+setup_vti6() {
+ setup_vti 6 ${veth6_a_addr} ${veth6_b_addr} ${tunnel6_a_addr} ${tunnel6_b_addr} ${tunnel6_mask}
+}
+
+setup_vxlan_or_geneve() {
+ type="${1}"
+ a_addr="${2}"
+ b_addr="${3}"
+ opts="${4}"
+ br_if_a="${5}"
+
+ if [ "${type}" = "vxlan" ]; then
+ opts="${opts} ttl 64 dstport 4789"
+ opts_a="local ${a_addr}"
+ opts_b="local ${b_addr}"
+ else
+ opts_a=""
+ opts_b=""
+ fi
+
+ run_cmd ${ns_a} ip link add ${type}_a type ${type} id 1 ${opts_a} remote ${b_addr} ${opts} || return 1
+ run_cmd ${ns_b} ip link add ${type}_b type ${type} id 1 ${opts_b} remote ${a_addr} ${opts}
+
+ if [ -n "${br_if_a}" ]; then
+ run_cmd ${ns_a} ip addr add ${tunnel4_a_addr}/${tunnel4_mask} dev ${br_if_a}
+ run_cmd ${ns_a} ip addr add ${tunnel6_a_addr}/${tunnel6_mask} dev ${br_if_a}
+ run_cmd ${ns_a} ip link set ${type}_a master ${br_if_a}
+ else
+ run_cmd ${ns_a} ip addr add ${tunnel4_a_addr}/${tunnel4_mask} dev ${type}_a
+ run_cmd ${ns_a} ip addr add ${tunnel6_a_addr}/${tunnel6_mask} dev ${type}_a
+ fi
+
+ run_cmd ${ns_b} ip addr add ${tunnel4_b_addr}/${tunnel4_mask} dev ${type}_b
+ run_cmd ${ns_b} ip addr add ${tunnel6_b_addr}/${tunnel6_mask} dev ${type}_b
+
+ run_cmd ${ns_a} ip link set ${type}_a up
+ run_cmd ${ns_b} ip link set ${type}_b up
+}
+
+setup_geneve4() {
+ setup_vxlan_or_geneve geneve ${prefix4}.${a_r1}.1 ${prefix4}.${b_r1}.1 "df set"
+}
+
+setup_vxlan4() {
+ setup_vxlan_or_geneve vxlan ${prefix4}.${a_r1}.1 ${prefix4}.${b_r1}.1 "df set"
+}
+
+setup_geneve6() {
+ setup_vxlan_or_geneve geneve ${prefix6}:${a_r1}::1 ${prefix6}:${b_r1}::1 ""
+}
+
+setup_vxlan6() {
+ setup_vxlan_or_geneve vxlan ${prefix6}:${a_r1}::1 ${prefix6}:${b_r1}::1 ""
+}
+
+setup_bridged_geneve4() {
+ setup_vxlan_or_geneve geneve ${prefix4}.${a_r1}.1 ${prefix4}.${b_r1}.1 "df set" "br0"
+}
+
+setup_bridged_vxlan4() {
+ setup_vxlan_or_geneve vxlan ${prefix4}.${a_r1}.1 ${prefix4}.${b_r1}.1 "df set" "br0"
+}
+
+setup_bridged_geneve6() {
+ setup_vxlan_or_geneve geneve ${prefix6}:${a_r1}::1 ${prefix6}:${b_r1}::1 "" "br0"
+}
+
+setup_bridged_vxlan6() {
+ setup_vxlan_or_geneve vxlan ${prefix6}:${a_r1}::1 ${prefix6}:${b_r1}::1 "" "br0"
+}
+
+setup_xfrm() {
+ proto=${1}
+ veth_a_addr="${2}"
+ veth_b_addr="${3}"
+
+ run_cmd ${ns_a} ip -${proto} xfrm state add src ${veth_a_addr} dst ${veth_b_addr} spi 0x1000 proto esp aead 'rfc4106(gcm(aes))' 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode tunnel || return 1
+ run_cmd ${ns_a} ip -${proto} xfrm state add src ${veth_b_addr} dst ${veth_a_addr} spi 0x1001 proto esp aead 'rfc4106(gcm(aes))' 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode tunnel
+ run_cmd ${ns_a} ip -${proto} xfrm policy add dir out mark 10 tmpl src ${veth_a_addr} dst ${veth_b_addr} proto esp mode tunnel
+ run_cmd ${ns_a} ip -${proto} xfrm policy add dir in mark 10 tmpl src ${veth_b_addr} dst ${veth_a_addr} proto esp mode tunnel
+
+ run_cmd ${ns_b} ip -${proto} xfrm state add src ${veth_a_addr} dst ${veth_b_addr} spi 0x1000 proto esp aead 'rfc4106(gcm(aes))' 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode tunnel
+ run_cmd ${ns_b} ip -${proto} xfrm state add src ${veth_b_addr} dst ${veth_a_addr} spi 0x1001 proto esp aead 'rfc4106(gcm(aes))' 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode tunnel
+ run_cmd ${ns_b} ip -${proto} xfrm policy add dir out mark 10 tmpl src ${veth_b_addr} dst ${veth_a_addr} proto esp mode tunnel
+ run_cmd ${ns_b} ip -${proto} xfrm policy add dir in mark 10 tmpl src ${veth_a_addr} dst ${veth_b_addr} proto esp mode tunnel
+}
+
+setup_xfrm4() {
+ setup_xfrm 4 ${veth4_a_addr} ${veth4_b_addr}
+}
+
+setup_xfrm6() {
+ setup_xfrm 6 ${veth6_a_addr} ${veth6_b_addr}
+}
+
+setup_routing_old() {
+ for i in ${routes}; do
+ [ "${ns}" = "" ] && ns="${i}" && continue
+ [ "${addr}" = "" ] && addr="${i}" && continue
+ [ "${gw}" = "" ] && gw="${i}"
+
+ ns_name="$(nsname ${ns})"
+
+ ip -n ${ns_name} route add ${addr} via ${gw}
+
+ ns=""; addr=""; gw=""
+ done
+}
+
+setup_routing_new() {
+ for i in ${nexthops}; do
+ [ "${ns}" = "" ] && ns="${i}" && continue
+ [ "${fam}" = "" ] && fam="${i}" && continue
+ [ "${nhid}" = "" ] && nhid="${i}" && continue
+ [ "${gw}" = "" ] && gw="${i}" && continue
+ [ "${dev}" = "" ] && dev="${i}"
+
+ ns_name="$(nsname ${ns})"
+
+ ip -n ${ns_name} -${fam} nexthop add id ${nhid} via ${gw} dev ${dev}
+
+ ns=""; fam=""; nhid=""; gw=""; dev=""
+
+ done
+
+ for i in ${routes_nh}; do
+ [ "${ns}" = "" ] && ns="${i}" && continue
+ [ "${fam}" = "" ] && fam="${i}" && continue
+ [ "${addr}" = "" ] && addr="${i}" && continue
+ [ "${nhid}" = "" ] && nhid="${i}"
+
+ ns_name="$(nsname ${ns})"
+
+ ip -n ${ns_name} -${fam} route add ${addr} nhid ${nhid}
+
+ ns=""; fam=""; addr=""; nhid=""
+ done
+}
+
+setup_routing() {
+ for i in ${NS_R1} ${NS_R2}; do
+ ip netns exec ${i} sysctl -q net/ipv4/ip_forward=1
+ ip netns exec ${i} sysctl -q net/ipv6/conf/all/forwarding=1
+ done
+
+ for i in ${routing_addrs}; do
+ [ "${ns}" = "" ] && ns="${i}" && continue
+ [ "${peer}" = "" ] && peer="${i}" && continue
+ [ "${segment}" = "" ] && segment="${i}"
+
+ ns_name="$(nsname ${ns})"
+ peer_name="$(nsname ${peer})"
+ if="veth_${ns}-${peer}"
+ ifpeer="veth_${peer}-${ns}"
+
+ # Create veth links
+ ip link add ${if} up netns ${ns_name} type veth peer name ${ifpeer} netns ${peer_name} || return 1
+ ip -n ${peer_name} link set dev ${ifpeer} up
+
+ # Add addresses
+ ip -n ${ns_name} addr add ${prefix4}.${segment}.1/24 dev ${if}
+ ip -n ${ns_name} addr add ${prefix6}:${segment}::1/64 dev ${if}
+
+ ip -n ${peer_name} addr add ${prefix4}.${segment}.2/24 dev ${ifpeer}
+ ip -n ${peer_name} addr add ${prefix6}:${segment}::2/64 dev ${ifpeer}
+
+ ns=""; peer=""; segment=""
+ done
+
+ if [ "$USE_NH" = "yes" ]; then
+ setup_routing_new
+ else
+ setup_routing_old
+ fi
+
+ return 0
+}
+
+setup_bridge() {
+ run_cmd ${ns_a} ip link add br0 type bridge || return 2
+ run_cmd ${ns_a} ip link set br0 up
+
+ run_cmd ${ns_c} ip link add veth_C-A type veth peer name veth_A-C
+ run_cmd ${ns_c} ip link set veth_A-C netns ns-A
+
+ run_cmd ${ns_a} ip link set veth_A-C up
+ run_cmd ${ns_c} ip link set veth_C-A up
+ run_cmd ${ns_c} ip addr add ${veth4_c_addr}/${veth4_mask} dev veth_C-A
+ run_cmd ${ns_c} ip addr add ${veth6_c_addr}/${veth6_mask} dev veth_C-A
+ run_cmd ${ns_a} ip link set veth_A-C master br0
+}
+
+setup_ovs_vxlan_or_geneve() {
+ type="${1}"
+ a_addr="${2}"
+ b_addr="${3}"
+
+ if [ "${type}" = "vxlan" ]; then
+ opts="${opts} ttl 64 dstport 4789"
+ opts_b="local ${b_addr}"
+ fi
+
+ run_cmd ovs-vsctl add-port ovs_br0 ${type}_a -- \
+ set interface ${type}_a type=${type} \
+ options:remote_ip=${b_addr} options:key=1 options:csum=true || return 1
+
+ run_cmd ${ns_b} ip link add ${type}_b type ${type} id 1 ${opts_b} remote ${a_addr} ${opts} || return 1
+
+ run_cmd ${ns_b} ip addr add ${tunnel4_b_addr}/${tunnel4_mask} dev ${type}_b
+ run_cmd ${ns_b} ip addr add ${tunnel6_b_addr}/${tunnel6_mask} dev ${type}_b
+
+ run_cmd ${ns_b} ip link set ${type}_b up
+}
+
+setup_ovs_geneve4() {
+ setup_ovs_vxlan_or_geneve geneve ${prefix4}.${a_r1}.1 ${prefix4}.${b_r1}.1
+}
+
+setup_ovs_vxlan4() {
+ setup_ovs_vxlan_or_geneve vxlan ${prefix4}.${a_r1}.1 ${prefix4}.${b_r1}.1
+}
+
+setup_ovs_geneve6() {
+ setup_ovs_vxlan_or_geneve geneve ${prefix6}:${a_r1}::1 ${prefix6}:${b_r1}::1
+}
+
+setup_ovs_vxlan6() {
+ setup_ovs_vxlan_or_geneve vxlan ${prefix6}:${a_r1}::1 ${prefix6}:${b_r1}::1
+}
+
+setup_ovs_bridge() {
+ run_cmd ovs-vsctl add-br ovs_br0 || return 2
+ run_cmd ip link set ovs_br0 up
+
+ run_cmd ${ns_c} ip link add veth_C-A type veth peer name veth_A-C
+ run_cmd ${ns_c} ip link set veth_A-C netns 1
+
+ run_cmd ip link set veth_A-C up
+ run_cmd ${ns_c} ip link set veth_C-A up
+ run_cmd ${ns_c} ip addr add ${veth4_c_addr}/${veth4_mask} dev veth_C-A
+ run_cmd ${ns_c} ip addr add ${veth6_c_addr}/${veth6_mask} dev veth_C-A
+ run_cmd ovs-vsctl add-port ovs_br0 veth_A-C
+
+ # Move veth_A-R1 to init
+ run_cmd ${ns_a} ip link set veth_A-R1 netns 1
+ run_cmd ip addr add ${prefix4}.${a_r1}.1/${veth4_mask} dev veth_A-R1
+ run_cmd ip addr add ${prefix6}:${a_r1}::1/${veth6_mask} dev veth_A-R1
+ run_cmd ip link set veth_A-R1 up
+ run_cmd ip route add ${prefix4}.${b_r1}.1 via ${prefix4}.${a_r1}.2
+ run_cmd ip route add ${prefix6}:${b_r1}::1 via ${prefix6}:${a_r1}::2
+}
+
+setup() {
+ [ "$(id -u)" -ne 0 ] && echo " need to run as root" && return $ksft_skip
+
+ for arg do
+ eval setup_${arg} || { echo " ${arg} not supported"; return 1; }
+ done
+}
+
+trace() {
+ [ $TRACING -eq 0 ] && return
+
+ for arg do
+ [ "${ns_cmd}" = "" ] && ns_cmd="${arg}" && continue
+ ${ns_cmd} tcpdump --immediate-mode -s 0 -i "${arg}" -w "${name}_${arg}.pcap" 2> /dev/null &
+ tcpdump_pids="${tcpdump_pids} $!"
+ ns_cmd=
+ done
+ sleep 1
+}
+
+cleanup() {
+ for pid in ${tcpdump_pids}; do
+ kill ${pid}
+ done
+ tcpdump_pids=
+
+ for n in ${NS_A} ${NS_B} ${NS_C} ${NS_R1} ${NS_R2}; do
+ ip netns del ${n} 2> /dev/null
+ done
+
+ ip link del veth_A-C 2>/dev/null
+ ip link del veth_A-R1 2>/dev/null
+ ovs-vsctl --if-exists del-port vxlan_a 2>/dev/null
+ ovs-vsctl --if-exists del-br ovs_br0 2>/dev/null
+}
+
+mtu() {
+ ns_cmd="${1}"
+ dev="${2}"
+ mtu="${3}"
+
+ ${ns_cmd} ip link set dev ${dev} mtu ${mtu}
+}
+
+mtu_parse() {
+ input="${1}"
+
+ next=0
+ for i in ${input}; do
+ [ ${next} -eq 1 -a "${i}" = "lock" ] && next=2 && continue
+ [ ${next} -eq 1 ] && echo "${i}" && return
+ [ ${next} -eq 2 ] && echo "lock ${i}" && return
+ [ "${i}" = "mtu" ] && next=1
+ done
+}
+
+link_get() {
+ ns_cmd="${1}"
+ name="${2}"
+
+ ${ns_cmd} ip link show dev "${name}"
+}
+
+link_get_mtu() {
+ ns_cmd="${1}"
+ name="${2}"
+
+ mtu_parse "$(link_get "${ns_cmd}" ${name})"
+}
+
+route_get_dst_exception() {
+ ns_cmd="${1}"
+ dst="${2}"
+
+ ${ns_cmd} ip route get "${dst}"
+}
+
+route_get_dst_pmtu_from_exception() {
+ ns_cmd="${1}"
+ dst="${2}"
+
+ mtu_parse "$(route_get_dst_exception "${ns_cmd}" ${dst})"
+}
+
+check_pmtu_value() {
+ expected="${1}"
+ value="${2}"
+ event="${3}"
+
+ [ "${expected}" = "any" ] && [ -n "${value}" ] && return 0
+ [ "${value}" = "${expected}" ] && return 0
+ [ -z "${value}" ] && err " PMTU exception wasn't created after ${event}" && return 1
+ [ -z "${expected}" ] && err " PMTU exception shouldn't exist after ${event}" && return 1
+ err " found PMTU exception with incorrect MTU ${value}, expected ${expected}, after ${event}"
+ return 1
+}
+
+test_pmtu_ipvX() {
+ family=${1}
+
+ setup namespaces routing || return 2
+ trace "${ns_a}" veth_A-R1 "${ns_r1}" veth_R1-A \
+ "${ns_r1}" veth_R1-B "${ns_b}" veth_B-R1 \
+ "${ns_a}" veth_A-R2 "${ns_r2}" veth_R2-A \
+ "${ns_r2}" veth_R2-B "${ns_b}" veth_B-R2
+
+ if [ ${family} -eq 4 ]; then
+ ping=ping
+ dst1="${prefix4}.${b_r1}.1"
+ dst2="${prefix4}.${b_r2}.1"
+ else
+ ping=${ping6}
+ dst1="${prefix6}:${b_r1}::1"
+ dst2="${prefix6}:${b_r2}::1"
+ fi
+
+ # Set up initial MTU values
+ mtu "${ns_a}" veth_A-R1 2000
+ mtu "${ns_r1}" veth_R1-A 2000
+ mtu "${ns_r1}" veth_R1-B 1400
+ mtu "${ns_b}" veth_B-R1 1400
+
+ mtu "${ns_a}" veth_A-R2 2000
+ mtu "${ns_r2}" veth_R2-A 2000
+ mtu "${ns_r2}" veth_R2-B 1500
+ mtu "${ns_b}" veth_B-R2 1500
+
+ # Create route exceptions
+ run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s 1800 ${dst1}
+ run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s 1800 ${dst2}
+
+ # Check that exceptions have been created with the correct PMTU
+ pmtu_1="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst1})"
+ check_pmtu_value "1400" "${pmtu_1}" "exceeding MTU" || return 1
+ pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
+ check_pmtu_value "1500" "${pmtu_2}" "exceeding MTU" || return 1
+
+ # Decrease local MTU below PMTU, check for PMTU decrease in route exception
+ mtu "${ns_a}" veth_A-R1 1300
+ mtu "${ns_r1}" veth_R1-A 1300
+ pmtu_1="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst1})"
+ check_pmtu_value "1300" "${pmtu_1}" "decreasing local MTU" || return 1
+ # Second exception shouldn't be modified
+ pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
+ check_pmtu_value "1500" "${pmtu_2}" "changing local MTU on a link not on this path" || return 1
+
+ # Increase MTU, check for PMTU increase in route exception
+ mtu "${ns_a}" veth_A-R1 1700
+ mtu "${ns_r1}" veth_R1-A 1700
+ pmtu_1="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst1})"
+ check_pmtu_value "1700" "${pmtu_1}" "increasing local MTU" || return 1
+ # Second exception shouldn't be modified
+ pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
+ check_pmtu_value "1500" "${pmtu_2}" "changing local MTU on a link not on this path" || return 1
+
+ # Skip PMTU locking tests for IPv6
+ [ $family -eq 6 ] && return 0
+
+ # Decrease remote MTU on path via R2, get new exception
+ mtu "${ns_r2}" veth_R2-B 400
+ mtu "${ns_b}" veth_B-R2 400
+ run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s 1400 ${dst2}
+ pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
+ check_pmtu_value "lock 552" "${pmtu_2}" "exceeding MTU, with MTU < min_pmtu" || return 1
+
+ # Decrease local MTU below PMTU
+ mtu "${ns_a}" veth_A-R2 500
+ mtu "${ns_r2}" veth_R2-A 500
+ pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
+ check_pmtu_value "500" "${pmtu_2}" "decreasing local MTU" || return 1
+
+ # Increase local MTU
+ mtu "${ns_a}" veth_A-R2 1500
+ mtu "${ns_r2}" veth_R2-A 1500
+ pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
+ check_pmtu_value "1500" "${pmtu_2}" "increasing local MTU" || return 1
+
+ # Get new exception
+ run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s 1400 ${dst2}
+ pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
+ check_pmtu_value "lock 552" "${pmtu_2}" "exceeding MTU, with MTU < min_pmtu" || return 1
+}
+
+test_pmtu_ipv4_exception() {
+ test_pmtu_ipvX 4
+}
+
+test_pmtu_ipv6_exception() {
+ test_pmtu_ipvX 6
+}
+
+test_pmtu_ipvX_over_vxlanY_or_geneveY_exception() {
+ type=${1}
+ family=${2}
+ outer_family=${3}
+ ll_mtu=4000
+
+ if [ ${outer_family} -eq 4 ]; then
+ setup namespaces routing ${type}4 || return 2
+ # IPv4 header UDP header VXLAN/GENEVE header Ethernet header
+ exp_mtu=$((${ll_mtu} - 20 - 8 - 8 - 14))
+ else
+ setup namespaces routing ${type}6 || return 2
+ # IPv6 header UDP header VXLAN/GENEVE header Ethernet header
+ exp_mtu=$((${ll_mtu} - 40 - 8 - 8 - 14))
+ fi
+
+ trace "${ns_a}" ${type}_a "${ns_b}" ${type}_b \
+ "${ns_a}" veth_A-R1 "${ns_r1}" veth_R1-A \
+ "${ns_b}" veth_B-R1 "${ns_r1}" veth_R1-B
+
+ if [ ${family} -eq 4 ]; then
+ ping=ping
+ dst=${tunnel4_b_addr}
+ else
+ ping=${ping6}
+ dst=${tunnel6_b_addr}
+ fi
+
+ # Create route exception by exceeding link layer MTU
+ mtu "${ns_a}" veth_A-R1 $((${ll_mtu} + 1000))
+ mtu "${ns_r1}" veth_R1-A $((${ll_mtu} + 1000))
+ mtu "${ns_b}" veth_B-R1 ${ll_mtu}
+ mtu "${ns_r1}" veth_R1-B ${ll_mtu}
+
+ mtu "${ns_a}" ${type}_a $((${ll_mtu} + 1000))
+ mtu "${ns_b}" ${type}_b $((${ll_mtu} + 1000))
+ run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s $((${ll_mtu} + 500)) ${dst}
+
+ # Check that exception was created
+ pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst})"
+ check_pmtu_value ${exp_mtu} "${pmtu}" "exceeding link layer MTU on ${type} interface"
+}
+
+test_pmtu_ipv4_vxlan4_exception() {
+ test_pmtu_ipvX_over_vxlanY_or_geneveY_exception vxlan 4 4
+}
+
+test_pmtu_ipv6_vxlan4_exception() {
+ test_pmtu_ipvX_over_vxlanY_or_geneveY_exception vxlan 6 4
+}
+
+test_pmtu_ipv4_geneve4_exception() {
+ test_pmtu_ipvX_over_vxlanY_or_geneveY_exception geneve 4 4
+}
+
+test_pmtu_ipv6_geneve4_exception() {
+ test_pmtu_ipvX_over_vxlanY_or_geneveY_exception geneve 6 4
+}
+
+test_pmtu_ipv4_vxlan6_exception() {
+ test_pmtu_ipvX_over_vxlanY_or_geneveY_exception vxlan 4 6
+}
+
+test_pmtu_ipv6_vxlan6_exception() {
+ test_pmtu_ipvX_over_vxlanY_or_geneveY_exception vxlan 6 6
+}
+
+test_pmtu_ipv4_geneve6_exception() {
+ test_pmtu_ipvX_over_vxlanY_or_geneveY_exception geneve 4 6
+}
+
+test_pmtu_ipv6_geneve6_exception() {
+ test_pmtu_ipvX_over_vxlanY_or_geneveY_exception geneve 6 6
+}
+
+test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception() {
+ type=${1}
+ family=${2}
+ outer_family=${3}
+ ll_mtu=4000
+
+ if [ ${outer_family} -eq 4 ]; then
+ setup namespaces routing bridge bridged_${type}4 || return 2
+ # IPv4 header UDP header VXLAN/GENEVE header Ethernet header
+ exp_mtu=$((${ll_mtu} - 20 - 8 - 8 - 14))
+ else
+ setup namespaces routing bridge bridged_${type}6 || return 2
+ # IPv6 header UDP header VXLAN/GENEVE header Ethernet header
+ exp_mtu=$((${ll_mtu} - 40 - 8 - 8 - 14))
+ fi
+
+ trace "${ns_a}" ${type}_a "${ns_b}" ${type}_b \
+ "${ns_a}" veth_A-R1 "${ns_r1}" veth_R1-A \
+ "${ns_b}" veth_B-R1 "${ns_r1}" veth_R1-B \
+ "${ns_a}" br0 "${ns_a}" veth-A-C \
+ "${ns_c}" veth_C-A
+
+ if [ ${family} -eq 4 ]; then
+ ping=ping
+ dst=${tunnel4_b_addr}
+ else
+ ping=${ping6}
+ dst=${tunnel6_b_addr}
+ fi
+
+ # Create route exception by exceeding link layer MTU
+ mtu "${ns_a}" veth_A-R1 $((${ll_mtu} + 1000))
+ mtu "${ns_a}" br0 $((${ll_mtu} + 1000))
+ mtu "${ns_a}" veth_A-C $((${ll_mtu} + 1000))
+ mtu "${ns_c}" veth_C-A $((${ll_mtu} + 1000))
+ mtu "${ns_r1}" veth_R1-A $((${ll_mtu} + 1000))
+ mtu "${ns_b}" veth_B-R1 ${ll_mtu}
+ mtu "${ns_r1}" veth_R1-B ${ll_mtu}
+
+ mtu "${ns_a}" ${type}_a $((${ll_mtu} + 1000))
+ mtu "${ns_b}" ${type}_b $((${ll_mtu} + 1000))
+
+ run_cmd ${ns_c} ${ping} -q -M want -i 0.1 -c 10 -s $((${ll_mtu} + 500)) ${dst} || return 1
+ run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s $((${ll_mtu} + 500)) ${dst} || return 1
+
+ # Check that exceptions were created
+ pmtu="$(route_get_dst_pmtu_from_exception "${ns_c}" ${dst})"
+ check_pmtu_value ${exp_mtu} "${pmtu}" "exceeding link layer MTU on bridged ${type} interface"
+ pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst})"
+ check_pmtu_value ${exp_mtu} "${pmtu}" "exceeding link layer MTU on locally bridged ${type} interface"
+}
+
+test_pmtu_ipv4_br_vxlan4_exception() {
+ test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception vxlan 4 4
+}
+
+test_pmtu_ipv6_br_vxlan4_exception() {
+ test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception vxlan 6 4
+}
+
+test_pmtu_ipv4_br_geneve4_exception() {
+ test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception geneve 4 4
+}
+
+test_pmtu_ipv6_br_geneve4_exception() {
+ test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception geneve 6 4
+}
+
+test_pmtu_ipv4_br_vxlan6_exception() {
+ test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception vxlan 4 6
+}
+
+test_pmtu_ipv6_br_vxlan6_exception() {
+ test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception vxlan 6 6
+}
+
+test_pmtu_ipv4_br_geneve6_exception() {
+ test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception geneve 4 6
+}
+
+test_pmtu_ipv6_br_geneve6_exception() {
+ test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception geneve 6 6
+}
+
+test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception() {
+ type=${1}
+ family=${2}
+ outer_family=${3}
+ ll_mtu=4000
+
+ if [ ${outer_family} -eq 4 ]; then
+ setup namespaces routing ovs_bridge ovs_${type}4 || return 2
+ # IPv4 header UDP header VXLAN/GENEVE header Ethernet header
+ exp_mtu=$((${ll_mtu} - 20 - 8 - 8 - 14))
+ else
+ setup namespaces routing ovs_bridge ovs_${type}6 || return 2
+ # IPv6 header UDP header VXLAN/GENEVE header Ethernet header
+ exp_mtu=$((${ll_mtu} - 40 - 8 - 8 - 14))
+ fi
+
+ if [ "${type}" = "vxlan" ]; then
+ tun_a="vxlan_sys_4789"
+ elif [ "${type}" = "geneve" ]; then
+ tun_a="genev_sys_6081"
+ fi
+
+ trace "" "${tun_a}" "${ns_b}" ${type}_b \
+ "" veth_A-R1 "${ns_r1}" veth_R1-A \
+ "${ns_b}" veth_B-R1 "${ns_r1}" veth_R1-B \
+ "" ovs_br0 "" veth-A-C \
+ "${ns_c}" veth_C-A
+
+ if [ ${family} -eq 4 ]; then
+ ping=ping
+ dst=${tunnel4_b_addr}
+ else
+ ping=${ping6}
+ dst=${tunnel6_b_addr}
+ fi
+
+ # Create route exception by exceeding link layer MTU
+ mtu "" veth_A-R1 $((${ll_mtu} + 1000))
+ mtu "" ovs_br0 $((${ll_mtu} + 1000))
+ mtu "" veth_A-C $((${ll_mtu} + 1000))
+ mtu "${ns_c}" veth_C-A $((${ll_mtu} + 1000))
+ mtu "${ns_r1}" veth_R1-A $((${ll_mtu} + 1000))
+ mtu "${ns_b}" veth_B-R1 ${ll_mtu}
+ mtu "${ns_r1}" veth_R1-B ${ll_mtu}
+
+ mtu "" ${tun_a} $((${ll_mtu} + 1000))
+ mtu "${ns_b}" ${type}_b $((${ll_mtu} + 1000))
+
+ run_cmd ${ns_c} ${ping} -q -M want -i 0.1 -c 20 -s $((${ll_mtu} + 500)) ${dst} || return 1
+
+ # Check that exceptions were created
+ pmtu="$(route_get_dst_pmtu_from_exception "${ns_c}" ${dst})"
+ check_pmtu_value ${exp_mtu} "${pmtu}" "exceeding link layer MTU on Open vSwitch ${type} interface"
+}
+
+test_pmtu_ipv4_ovs_vxlan4_exception() {
+ test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception vxlan 4 4
+}
+
+test_pmtu_ipv6_ovs_vxlan4_exception() {
+ test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception vxlan 6 4
+}
+
+test_pmtu_ipv4_ovs_geneve4_exception() {
+ test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception geneve 4 4
+}
+
+test_pmtu_ipv6_ovs_geneve4_exception() {
+ test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception geneve 6 4
+}
+
+test_pmtu_ipv4_ovs_vxlan6_exception() {
+ test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception vxlan 4 6
+}
+
+test_pmtu_ipv6_ovs_vxlan6_exception() {
+ test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception vxlan 6 6
+}
+
+test_pmtu_ipv4_ovs_geneve6_exception() {
+ test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception geneve 4 6
+}
+
+test_pmtu_ipv6_ovs_geneve6_exception() {
+ test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception geneve 6 6
+}
+
+test_pmtu_ipvX_over_fouY_or_gueY() {
+ inner_family=${1}
+ outer_family=${2}
+ encap=${3}
+ ll_mtu=4000
+
+ setup namespaces routing ${encap}${outer_family}${inner_family} || return 2
+ trace "${ns_a}" ${encap}_a "${ns_b}" ${encap}_b \
+ "${ns_a}" veth_A-R1 "${ns_r1}" veth_R1-A \
+ "${ns_b}" veth_B-R1 "${ns_r1}" veth_R1-B
+
+ if [ ${inner_family} -eq 4 ]; then
+ ping=ping
+ dst=${tunnel4_b_addr}
+ else
+ ping=${ping6}
+ dst=${tunnel6_b_addr}
+ fi
+
+ if [ "${encap}" = "gue" ]; then
+ encap_overhead=4
+ else
+ encap_overhead=0
+ fi
+
+ if [ ${outer_family} -eq 4 ]; then
+ # IPv4 header UDP header
+ exp_mtu=$((${ll_mtu} - 20 - 8 - ${encap_overhead}))
+ else
+ # IPv6 header Option 4 UDP header
+ exp_mtu=$((${ll_mtu} - 40 - 8 - 8 - ${encap_overhead}))
+ fi
+
+ # Create route exception by exceeding link layer MTU
+ mtu "${ns_a}" veth_A-R1 $((${ll_mtu} + 1000))
+ mtu "${ns_r1}" veth_R1-A $((${ll_mtu} + 1000))
+ mtu "${ns_b}" veth_B-R1 ${ll_mtu}
+ mtu "${ns_r1}" veth_R1-B ${ll_mtu}
+
+ mtu "${ns_a}" ${encap}_a $((${ll_mtu} + 1000))
+ mtu "${ns_b}" ${encap}_b $((${ll_mtu} + 1000))
+ run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s $((${ll_mtu} + 500)) ${dst}
+
+ # Check that exception was created
+ pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst})"
+ check_pmtu_value ${exp_mtu} "${pmtu}" "exceeding link layer MTU on ${encap} interface"
+}
+
+test_pmtu_ipv4_fou4_exception() {
+ test_pmtu_ipvX_over_fouY_or_gueY 4 4 fou
+}
+
+test_pmtu_ipv6_fou4_exception() {
+ test_pmtu_ipvX_over_fouY_or_gueY 6 4 fou
+}
+
+test_pmtu_ipv4_fou6_exception() {
+ test_pmtu_ipvX_over_fouY_or_gueY 4 6 fou
+}
+
+test_pmtu_ipv6_fou6_exception() {
+ test_pmtu_ipvX_over_fouY_or_gueY 6 6 fou
+}
+
+test_pmtu_ipv4_gue4_exception() {
+ test_pmtu_ipvX_over_fouY_or_gueY 4 4 gue
+}
+
+test_pmtu_ipv6_gue4_exception() {
+ test_pmtu_ipvX_over_fouY_or_gueY 6 4 gue
+}
+
+test_pmtu_ipv4_gue6_exception() {
+ test_pmtu_ipvX_over_fouY_or_gueY 4 6 gue
+}
+
+test_pmtu_ipv6_gue6_exception() {
+ test_pmtu_ipvX_over_fouY_or_gueY 6 6 gue
+}
+
+test_pmtu_ipvX_over_ipvY_exception() {
+ inner=${1}
+ outer=${2}
+ ll_mtu=4000
+
+ setup namespaces routing ip${inner}ip${outer} || return 2
+
+ trace "${ns_a}" ip_a "${ns_b}" ip_b \
+ "${ns_a}" veth_A-R1 "${ns_r1}" veth_R1-A \
+ "${ns_b}" veth_B-R1 "${ns_r1}" veth_R1-B
+
+ if [ ${inner} -eq 4 ]; then
+ ping=ping
+ dst=${tunnel4_b_addr}
+ else
+ ping=${ping6}
+ dst=${tunnel6_b_addr}
+ fi
+
+ if [ ${outer} -eq 4 ]; then
+ # IPv4 header
+ exp_mtu=$((${ll_mtu} - 20))
+ else
+ # IPv6 header Option 4
+ exp_mtu=$((${ll_mtu} - 40 - 8))
+ fi
+
+ # Create route exception by exceeding link layer MTU
+ mtu "${ns_a}" veth_A-R1 $((${ll_mtu} + 1000))
+ mtu "${ns_r1}" veth_R1-A $((${ll_mtu} + 1000))
+ mtu "${ns_b}" veth_B-R1 ${ll_mtu}
+ mtu "${ns_r1}" veth_R1-B ${ll_mtu}
+
+ mtu "${ns_a}" ip_a $((${ll_mtu} + 1000)) || return
+ mtu "${ns_b}" ip_b $((${ll_mtu} + 1000)) || return
+ run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s $((${ll_mtu} + 500)) ${dst}
+
+ # Check that exception was created
+ pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst})"
+ check_pmtu_value ${exp_mtu} "${pmtu}" "exceeding link layer MTU on ip${inner}ip${outer} interface"
+}
+
+test_pmtu_ipv4_ipv4_exception() {
+ test_pmtu_ipvX_over_ipvY_exception 4 4
+}
+
+test_pmtu_ipv6_ipv4_exception() {
+ test_pmtu_ipvX_over_ipvY_exception 6 4
+}
+
+test_pmtu_ipv4_ipv6_exception() {
+ test_pmtu_ipvX_over_ipvY_exception 4 6
+}
+
+test_pmtu_ipv6_ipv6_exception() {
+ test_pmtu_ipvX_over_ipvY_exception 6 6
+}
+
+test_pmtu_vti4_exception() {
+ setup namespaces veth vti4 xfrm4 || return 2
+ trace "${ns_a}" veth_a "${ns_b}" veth_b \
+ "${ns_a}" vti4_a "${ns_b}" vti4_b
+
+ veth_mtu=1500
+ vti_mtu=$((veth_mtu - 20))
+
+ # SPI SN IV ICV pad length next header
+ esp_payload_rfc4106=$((vti_mtu - 4 - 4 - 8 - 16 - 1 - 1))
+ ping_payload=$((esp_payload_rfc4106 - 28))
+
+ mtu "${ns_a}" veth_a ${veth_mtu}
+ mtu "${ns_b}" veth_b ${veth_mtu}
+ mtu "${ns_a}" vti4_a ${vti_mtu}
+ mtu "${ns_b}" vti4_b ${vti_mtu}
+
+ # Send DF packet without exceeding link layer MTU, check that no
+ # exception is created
+ run_cmd ${ns_a} ping -q -M want -i 0.1 -w 1 -s ${ping_payload} ${tunnel4_b_addr}
+ pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel4_b_addr})"
+ check_pmtu_value "" "${pmtu}" "sending packet smaller than PMTU (IP payload length ${esp_payload_rfc4106})" || return 1
+
+ # Now exceed link layer MTU by one byte, check that exception is created
+ # with the right PMTU value
+ run_cmd ${ns_a} ping -q -M want -i 0.1 -w 1 -s $((ping_payload + 1)) ${tunnel4_b_addr}
+ pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel4_b_addr})"
+ check_pmtu_value "${esp_payload_rfc4106}" "${pmtu}" "exceeding PMTU (IP payload length $((esp_payload_rfc4106 + 1)))"
+}
+
+test_pmtu_vti6_exception() {
+ setup namespaces veth vti6 xfrm6 || return 2
+ trace "${ns_a}" veth_a "${ns_b}" veth_b \
+ "${ns_a}" vti6_a "${ns_b}" vti6_b
+ fail=0
+
+ # Create route exception by exceeding link layer MTU
+ mtu "${ns_a}" veth_a 4000
+ mtu "${ns_b}" veth_b 4000
+ mtu "${ns_a}" vti6_a 5000
+ mtu "${ns_b}" vti6_b 5000
+ run_cmd ${ns_a} ${ping6} -q -i 0.1 -w 1 -s 60000 ${tunnel6_b_addr}
+
+ # Check that exception was created
+ pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel6_b_addr})"
+ check_pmtu_value any "${pmtu}" "creating tunnel exceeding link layer MTU" || return 1
+
+ # Decrease tunnel MTU, check for PMTU decrease in route exception
+ mtu "${ns_a}" vti6_a 3000
+ pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel6_b_addr})"
+ check_pmtu_value "3000" "${pmtu}" "decreasing tunnel MTU" || fail=1
+
+ # Increase tunnel MTU, check for PMTU increase in route exception
+ mtu "${ns_a}" vti6_a 9000
+ pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel6_b_addr})"
+ check_pmtu_value "9000" "${pmtu}" "increasing tunnel MTU" || fail=1
+
+ return ${fail}
+}
+
+test_pmtu_vti4_default_mtu() {
+ setup namespaces veth vti4 || return 2
+
+ # Check that MTU of vti device is MTU of veth minus IPv4 header length
+ veth_mtu="$(link_get_mtu "${ns_a}" veth_a)"
+ vti4_mtu="$(link_get_mtu "${ns_a}" vti4_a)"
+ if [ $((veth_mtu - vti4_mtu)) -ne 20 ]; then
+ err " vti MTU ${vti4_mtu} is not veth MTU ${veth_mtu} minus IPv4 header length"
+ return 1
+ fi
+}
+
+test_pmtu_vti6_default_mtu() {
+ setup namespaces veth vti6 || return 2
+
+ # Check that MTU of vti device is MTU of veth minus IPv6 header length
+ veth_mtu="$(link_get_mtu "${ns_a}" veth_a)"
+ vti6_mtu="$(link_get_mtu "${ns_a}" vti6_a)"
+ if [ $((veth_mtu - vti6_mtu)) -ne 40 ]; then
+ err " vti MTU ${vti6_mtu} is not veth MTU ${veth_mtu} minus IPv6 header length"
+ return 1
+ fi
+}
+
+test_pmtu_vti4_link_add_mtu() {
+ setup namespaces || return 2
+
+ run_cmd ${ns_a} ip link add vti4_a type vti local ${veth4_a_addr} remote ${veth4_b_addr} key 10
+ [ $? -ne 0 ] && err " vti not supported" && return 2
+ run_cmd ${ns_a} ip link del vti4_a
+
+ fail=0
+
+ min=68
+ max=$((65535 - 20))
+ # Check invalid values first
+ for v in $((min - 1)) $((max + 1)); do
+ run_cmd ${ns_a} ip link add vti4_a mtu ${v} type vti local ${veth4_a_addr} remote ${veth4_b_addr} key 10
+ # This can fail, or MTU can be adjusted to a proper value
+ [ $? -ne 0 ] && continue
+ mtu="$(link_get_mtu "${ns_a}" vti4_a)"
+ if [ ${mtu} -lt ${min} -o ${mtu} -gt ${max} ]; then
+ err " vti tunnel created with invalid MTU ${mtu}"
+ fail=1
+ fi
+ run_cmd ${ns_a} ip link del vti4_a
+ done
+
+ # Now check valid values
+ for v in ${min} 1300 ${max}; do
+ run_cmd ${ns_a} ip link add vti4_a mtu ${v} type vti local ${veth4_a_addr} remote ${veth4_b_addr} key 10
+ mtu="$(link_get_mtu "${ns_a}" vti4_a)"
+ run_cmd ${ns_a} ip link del vti4_a
+ if [ "${mtu}" != "${v}" ]; then
+ err " vti MTU ${mtu} doesn't match configured value ${v}"
+ fail=1
+ fi
+ done
+
+ return ${fail}
+}
+
+test_pmtu_vti6_link_add_mtu() {
+ setup namespaces || return 2
+
+ run_cmd ${ns_a} ip link add vti6_a type vti6 local ${veth6_a_addr} remote ${veth6_b_addr} key 10
+ [ $? -ne 0 ] && err " vti6 not supported" && return 2
+ run_cmd ${ns_a} ip link del vti6_a
+
+ fail=0
+
+ min=68 # vti6 can carry IPv4 packets too
+ max=$((65535 - 40))
+ # Check invalid values first
+ for v in $((min - 1)) $((max + 1)); do
+ run_cmd ${ns_a} ip link add vti6_a mtu ${v} type vti6 local ${veth6_a_addr} remote ${veth6_b_addr} key 10
+ # This can fail, or MTU can be adjusted to a proper value
+ [ $? -ne 0 ] && continue
+ mtu="$(link_get_mtu "${ns_a}" vti6_a)"
+ if [ ${mtu} -lt ${min} -o ${mtu} -gt ${max} ]; then
+ err " vti6 tunnel created with invalid MTU ${v}"
+ fail=1
+ fi
+ run_cmd ${ns_a} ip link del vti6_a
+ done
+
+ # Now check valid values
+ for v in 68 1280 1300 $((65535 - 40)); do
+ run_cmd ${ns_a} ip link add vti6_a mtu ${v} type vti6 local ${veth6_a_addr} remote ${veth6_b_addr} key 10
+ mtu="$(link_get_mtu "${ns_a}" vti6_a)"
+ run_cmd ${ns_a} ip link del vti6_a
+ if [ "${mtu}" != "${v}" ]; then
+ err " vti6 MTU ${mtu} doesn't match configured value ${v}"
+ fail=1
+ fi
+ done
+
+ return ${fail}
+}
+
+test_pmtu_vti6_link_change_mtu() {
+ setup namespaces || return 2
+
+ run_cmd ${ns_a} ip link add dummy0 mtu 1500 type dummy
+ [ $? -ne 0 ] && err " dummy not supported" && return 2
+ run_cmd ${ns_a} ip link add dummy1 mtu 3000 type dummy
+ run_cmd ${ns_a} ip link set dummy0 up
+ run_cmd ${ns_a} ip link set dummy1 up
+
+ run_cmd ${ns_a} ip addr add ${dummy6_0_prefix}1/${dummy6_mask} dev dummy0
+ run_cmd ${ns_a} ip addr add ${dummy6_1_prefix}1/${dummy6_mask} dev dummy1
+
+ fail=0
+
+ # Create vti6 interface bound to device, passing MTU, check it
+ run_cmd ${ns_a} ip link add vti6_a mtu 1300 type vti6 remote ${dummy6_0_prefix}2 local ${dummy6_0_prefix}1
+ mtu="$(link_get_mtu "${ns_a}" vti6_a)"
+ if [ ${mtu} -ne 1300 ]; then
+ err " vti6 MTU ${mtu} doesn't match configured value 1300"
+ fail=1
+ fi
+
+ # Move to another device with different MTU, without passing MTU, check
+ # MTU is adjusted
+ run_cmd ${ns_a} ip link set vti6_a type vti6 remote ${dummy6_1_prefix}2 local ${dummy6_1_prefix}1
+ mtu="$(link_get_mtu "${ns_a}" vti6_a)"
+ if [ ${mtu} -ne $((3000 - 40)) ]; then
+ err " vti MTU ${mtu} is not dummy MTU 3000 minus IPv6 header length"
+ fail=1
+ fi
+
+ # Move it back, passing MTU, check MTU is not overridden
+ run_cmd ${ns_a} ip link set vti6_a mtu 1280 type vti6 remote ${dummy6_0_prefix}2 local ${dummy6_0_prefix}1
+ mtu="$(link_get_mtu "${ns_a}" vti6_a)"
+ if [ ${mtu} -ne 1280 ]; then
+ err " vti6 MTU ${mtu} doesn't match configured value 1280"
+ fail=1
+ fi
+
+ return ${fail}
+}
+
+check_command() {
+ cmd=${1}
+
+ if ! which ${cmd} > /dev/null 2>&1; then
+ err " missing required command: '${cmd}'"
+ return 1
+ fi
+ return 0
+}
+
+test_cleanup_vxlanX_exception() {
+ outer="${1}"
+ encap="vxlan"
+ ll_mtu=4000
+
+ check_command taskset || return 2
+ cpu_list=$(grep -m 2 processor /proc/cpuinfo | cut -d ' ' -f 2)
+
+ setup namespaces routing ${encap}${outer} || return 2
+ trace "${ns_a}" ${encap}_a "${ns_b}" ${encap}_b \
+ "${ns_a}" veth_A-R1 "${ns_r1}" veth_R1-A \
+ "${ns_b}" veth_B-R1 "${ns_r1}" veth_R1-B
+
+ # Create route exception by exceeding link layer MTU
+ mtu "${ns_a}" veth_A-R1 $((${ll_mtu} + 1000))
+ mtu "${ns_r1}" veth_R1-A $((${ll_mtu} + 1000))
+ mtu "${ns_b}" veth_B-R1 ${ll_mtu}
+ mtu "${ns_r1}" veth_R1-B ${ll_mtu}
+
+ mtu "${ns_a}" ${encap}_a $((${ll_mtu} + 1000))
+ mtu "${ns_b}" ${encap}_b $((${ll_mtu} + 1000))
+
+ # Fill exception cache for multiple CPUs (2)
+ # we can always use inner IPv4 for that
+ for cpu in ${cpu_list}; do
+ run_cmd taskset --cpu-list ${cpu} ${ns_a} ping -q -M want -i 0.1 -w 1 -s $((${ll_mtu} + 500)) ${tunnel4_b_addr}
+ done
+
+ ${ns_a} ip link del dev veth_A-R1 &
+ iplink_pid=$!
+ sleep 1
+ if [ "$(cat /proc/${iplink_pid}/cmdline 2>/dev/null | tr -d '\0')" = "iplinkdeldevveth_A-R1" ]; then
+ err " can't delete veth device in a timely manner, PMTU dst likely leaked"
+ return 1
+ fi
+}
+
+test_cleanup_ipv6_exception() {
+ test_cleanup_vxlanX_exception 6
+}
+
+test_cleanup_ipv4_exception() {
+ test_cleanup_vxlanX_exception 4
+}
+
+run_test() {
+ (
+ tname="$1"
+ tdesc="$2"
+
+ unset IFS
+
+ # Since cleanup() relies on variables modified by this subshell, it
+ # has to run in this context.
+ trap cleanup EXIT
+
+ if [ "$VERBOSE" = "1" ]; then
+ printf "\n##########################################################################\n\n"
+ fi
+
+ eval test_${tname}
+ ret=$?
+
+ if [ $ret -eq 0 ]; then
+ printf "TEST: %-60s [ OK ]\n" "${tdesc}"
+ elif [ $ret -eq 1 ]; then
+ printf "TEST: %-60s [FAIL]\n" "${tdesc}"
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "Pausing. Hit enter to continue"
+ read a
+ fi
+ err_flush
+ exit 1
+ elif [ $ret -eq 2 ]; then
+ printf "TEST: %-60s [SKIP]\n" "${tdesc}"
+ err_flush
+ fi
+
+ return $ret
+ )
+ ret=$?
+ [ $ret -ne 0 ] && exitcode=1
+
+ return $ret
+}
+
+run_test_nh() {
+ tname="$1"
+ tdesc="$2"
+
+ USE_NH=yes
+ run_test "${tname}" "${tdesc} - nexthop objects"
+ USE_NH=no
+}
+
+test_list_flush_ipv4_exception() {
+ setup namespaces routing || return 2
+ trace "${ns_a}" veth_A-R1 "${ns_r1}" veth_R1-A \
+ "${ns_r1}" veth_R1-B "${ns_b}" veth_B-R1 \
+ "${ns_a}" veth_A-R2 "${ns_r2}" veth_R2-A \
+ "${ns_r2}" veth_R2-B "${ns_b}" veth_B-R2
+
+ dst_prefix1="${prefix4}.${b_r1}."
+ dst2="${prefix4}.${b_r2}.1"
+
+ # Set up initial MTU values
+ mtu "${ns_a}" veth_A-R1 2000
+ mtu "${ns_r1}" veth_R1-A 2000
+ mtu "${ns_r1}" veth_R1-B 1500
+ mtu "${ns_b}" veth_B-R1 1500
+
+ mtu "${ns_a}" veth_A-R2 2000
+ mtu "${ns_r2}" veth_R2-A 2000
+ mtu "${ns_r2}" veth_R2-B 1500
+ mtu "${ns_b}" veth_B-R2 1500
+
+ fail=0
+
+ # Add 100 addresses for veth endpoint on B reached by default A route
+ for i in $(seq 100 199); do
+ run_cmd ${ns_b} ip addr add "${dst_prefix1}${i}" dev veth_B-R1
+ done
+
+ # Create 100 cached route exceptions for path via R1, one via R2. Note
+ # that with IPv4 we need to actually cause a route lookup that matches
+ # the exception caused by ICMP, in order to actually have a cached
+ # route, so we need to ping each destination twice
+ for i in $(seq 100 199); do
+ run_cmd ${ns_a} ping -q -M want -i 0.1 -c 2 -s 1800 "${dst_prefix1}${i}"
+ done
+ run_cmd ${ns_a} ping -q -M want -i 0.1 -c 2 -s 1800 "${dst2}"
+
+ if [ "$(${ns_a} ip -oneline route list cache | wc -l)" -ne 101 ]; then
+ err " can't list cached exceptions"
+ fail=1
+ fi
+
+ run_cmd ${ns_a} ip route flush cache
+ pmtu1="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst_prefix}1)"
+ pmtu2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst_prefix}2)"
+ if [ -n "${pmtu1}" ] || [ -n "${pmtu2}" ] || \
+ [ -n "$(${ns_a} ip route list cache)" ]; then
+ err " can't flush cached exceptions"
+ fail=1
+ fi
+
+ return ${fail}
+}
+
+test_list_flush_ipv6_exception() {
+ setup namespaces routing || return 2
+ trace "${ns_a}" veth_A-R1 "${ns_r1}" veth_R1-A \
+ "${ns_r1}" veth_R1-B "${ns_b}" veth_B-R1 \
+ "${ns_a}" veth_A-R2 "${ns_r2}" veth_R2-A \
+ "${ns_r2}" veth_R2-B "${ns_b}" veth_B-R2
+
+ dst_prefix1="${prefix6}:${b_r1}::"
+ dst2="${prefix6}:${b_r2}::1"
+
+ # Set up initial MTU values
+ mtu "${ns_a}" veth_A-R1 2000
+ mtu "${ns_r1}" veth_R1-A 2000
+ mtu "${ns_r1}" veth_R1-B 1500
+ mtu "${ns_b}" veth_B-R1 1500
+
+ mtu "${ns_a}" veth_A-R2 2000
+ mtu "${ns_r2}" veth_R2-A 2000
+ mtu "${ns_r2}" veth_R2-B 1500
+ mtu "${ns_b}" veth_B-R2 1500
+
+ fail=0
+
+ # Add 100 addresses for veth endpoint on B reached by default A route
+ for i in $(seq 100 199); do
+ run_cmd ${ns_b} ip addr add "${dst_prefix1}${i}" dev veth_B-R1
+ done
+
+ # Create 100 cached route exceptions for path via R1, one via R2
+ for i in $(seq 100 199); do
+ run_cmd ${ns_a} ping -q -M want -i 0.1 -w 1 -s 1800 "${dst_prefix1}${i}"
+ done
+ run_cmd ${ns_a} ping -q -M want -i 0.1 -w 1 -s 1800 "${dst2}"
+ if [ "$(${ns_a} ip -oneline -6 route list cache | wc -l)" -ne 101 ]; then
+ err " can't list cached exceptions"
+ fail=1
+ fi
+
+ run_cmd ${ns_a} ip -6 route flush cache
+ pmtu1="$(route_get_dst_pmtu_from_exception "${ns_a}" "${dst_prefix1}100")"
+ pmtu2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
+ if [ -n "${pmtu1}" ] || [ -n "${pmtu2}" ] || \
+ [ -n "$(${ns_a} ip -6 route list cache)" ]; then
+ err " can't flush cached exceptions"
+ fail=1
+ fi
+
+ return ${fail}
+}
+
+test_pmtu_ipvX_route_change() {
+ family=${1}
+
+ setup namespaces routing || return 2
+ trace "${ns_a}" veth_A-R1 "${ns_r1}" veth_R1-A \
+ "${ns_r1}" veth_R1-B "${ns_b}" veth_B-R1 \
+ "${ns_a}" veth_A-R2 "${ns_r2}" veth_R2-A \
+ "${ns_r2}" veth_R2-B "${ns_b}" veth_B-R2
+
+ if [ ${family} -eq 4 ]; then
+ ping=ping
+ dst1="${prefix4}.${b_r1}.1"
+ dst2="${prefix4}.${b_r2}.1"
+ gw="${prefix4}.${a_r1}.2"
+ else
+ ping=${ping6}
+ dst1="${prefix6}:${b_r1}::1"
+ dst2="${prefix6}:${b_r2}::1"
+ gw="${prefix6}:${a_r1}::2"
+ fi
+
+ # Set up initial MTU values
+ mtu "${ns_a}" veth_A-R1 2000
+ mtu "${ns_r1}" veth_R1-A 2000
+ mtu "${ns_r1}" veth_R1-B 1400
+ mtu "${ns_b}" veth_B-R1 1400
+
+ mtu "${ns_a}" veth_A-R2 2000
+ mtu "${ns_r2}" veth_R2-A 2000
+ mtu "${ns_r2}" veth_R2-B 1500
+ mtu "${ns_b}" veth_B-R2 1500
+
+ # Create route exceptions
+ run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s 1800 ${dst1}
+ run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s 1800 ${dst2}
+
+ # Check that exceptions have been created with the correct PMTU
+ pmtu_1="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst1})"
+ check_pmtu_value "1400" "${pmtu_1}" "exceeding MTU" || return 1
+ pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
+ check_pmtu_value "1500" "${pmtu_2}" "exceeding MTU" || return 1
+
+ # Replace the route from A to R1
+ run_cmd ${ns_a} ip route change default via ${gw}
+
+ # Delete the device in A
+ run_cmd ${ns_a} ip link del "veth_A-R1"
+}
+
+test_pmtu_ipv4_route_change() {
+ test_pmtu_ipvX_route_change 4
+}
+
+test_pmtu_ipv6_route_change() {
+ test_pmtu_ipvX_route_change 6
+}
+
+usage() {
+ echo
+ echo "$0 [OPTIONS] [TEST]..."
+ echo "If no TEST argument is given, all tests will be run."
+ echo
+ echo "Options"
+ echo " --trace: capture traffic to TEST_INTERFACE.pcap"
+ echo
+ echo "Available tests${tests}"
+ exit 1
+}
+
+################################################################################
+#
+exitcode=0
+desc=0
+
+while getopts :ptv o
+do
+ case $o in
+ p) PAUSE_ON_FAIL=yes;;
+ v) VERBOSE=1;;
+ t) if which tcpdump > /dev/null 2>&1; then
+ TRACING=1
+ else
+ echo "=== tcpdump not available, tracing disabled"
+ fi
+ ;;
+ *) usage;;
+ esac
+done
+shift $(($OPTIND-1))
+
+IFS="
+"
+
+for arg do
+ # Check first that all requested tests are available before running any
+ command -v > /dev/null "test_${arg}" || { echo "=== Test ${arg} not found"; usage; }
+done
+
+trap cleanup EXIT
+
+# start clean
+cleanup
+
+HAVE_NH=no
+ip nexthop ls >/dev/null 2>&1
+[ $? -eq 0 ] && HAVE_NH=yes
+
+name=""
+desc=""
+rerun_nh=0
+for t in ${tests}; do
+ [ "${name}" = "" ] && name="${t}" && continue
+ [ "${desc}" = "" ] && desc="${t}" && continue
+
+ if [ "${HAVE_NH}" = "yes" ]; then
+ rerun_nh="${t}"
+ fi
+
+ run_this=1
+ for arg do
+ [ "${arg}" != "${arg#--*}" ] && continue
+ [ "${arg}" = "${name}" ] && run_this=1 && break
+ run_this=0
+ done
+ if [ $run_this -eq 1 ]; then
+ run_test "${name}" "${desc}"
+ # if test was skipped no need to retry with nexthop objects
+ [ $? -eq 2 ] && rerun_nh=0
+
+ if [ "${rerun_nh}" = "1" ]; then
+ run_test_nh "${name}" "${desc}"
+ fi
+ fi
+ name=""
+ desc=""
+ rerun_nh=0
+done
+
+exit ${exitcode}
diff --git a/tools/testing/selftests/net/psock_fanout.c b/tools/testing/selftests/net/psock_fanout.c
new file mode 100644
index 000000000..2c522f7a0
--- /dev/null
+++ b/tools/testing/selftests/net/psock_fanout.c
@@ -0,0 +1,472 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2013 Google Inc.
+ * Author: Willem de Bruijn (willemb@google.com)
+ *
+ * A basic test of packet socket fanout behavior.
+ *
+ * Control:
+ * - create fanout fails as expected with illegal flag combinations
+ * - join fanout fails as expected with diverging types or flags
+ *
+ * Datapath:
+ * Open a pair of packet sockets and a pair of INET sockets, send a known
+ * number of packets across the two INET sockets and count the number of
+ * packets enqueued onto the two packet sockets.
+ *
+ * The test currently runs for
+ * - PACKET_FANOUT_HASH
+ * - PACKET_FANOUT_HASH with PACKET_FANOUT_FLAG_ROLLOVER
+ * - PACKET_FANOUT_LB
+ * - PACKET_FANOUT_CPU
+ * - PACKET_FANOUT_ROLLOVER
+ * - PACKET_FANOUT_CBPF
+ * - PACKET_FANOUT_EBPF
+ *
+ * Todo:
+ * - functionality: PACKET_FANOUT_FLAG_DEFRAG
+ */
+
+#define _GNU_SOURCE /* for sched_setaffinity */
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/unistd.h> /* for __NR_bpf */
+#include <linux/filter.h>
+#include <linux/bpf.h>
+#include <linux/if_packet.h>
+#include <net/if.h>
+#include <net/ethernet.h>
+#include <netinet/ip.h>
+#include <netinet/udp.h>
+#include <poll.h>
+#include <sched.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "psock_lib.h"
+
+#define RING_NUM_FRAMES 20
+
+/* Open a socket in a given fanout mode.
+ * @return -1 if mode is bad, a valid socket otherwise */
+static int sock_fanout_open(uint16_t typeflags, uint16_t group_id)
+{
+ struct sockaddr_ll addr = {0};
+ int fd, val;
+
+ fd = socket(PF_PACKET, SOCK_RAW, 0);
+ if (fd < 0) {
+ perror("socket packet");
+ exit(1);
+ }
+
+ pair_udp_setfilter(fd);
+
+ addr.sll_family = AF_PACKET;
+ addr.sll_protocol = htons(ETH_P_IP);
+ addr.sll_ifindex = if_nametoindex("lo");
+ if (addr.sll_ifindex == 0) {
+ perror("if_nametoindex");
+ exit(1);
+ }
+ if (bind(fd, (void *) &addr, sizeof(addr))) {
+ perror("bind packet");
+ exit(1);
+ }
+
+ val = (((int) typeflags) << 16) | group_id;
+ if (setsockopt(fd, SOL_PACKET, PACKET_FANOUT, &val, sizeof(val))) {
+ if (close(fd)) {
+ perror("close packet");
+ exit(1);
+ }
+ return -1;
+ }
+
+ return fd;
+}
+
+static void sock_fanout_set_cbpf(int fd)
+{
+ struct sock_filter bpf_filter[] = {
+ BPF_STMT(BPF_LD+BPF_B+BPF_ABS, 80), /* ldb [80] */
+ BPF_STMT(BPF_RET+BPF_A, 0), /* ret A */
+ };
+ struct sock_fprog bpf_prog;
+
+ bpf_prog.filter = bpf_filter;
+ bpf_prog.len = sizeof(bpf_filter) / sizeof(struct sock_filter);
+
+ if (setsockopt(fd, SOL_PACKET, PACKET_FANOUT_DATA, &bpf_prog,
+ sizeof(bpf_prog))) {
+ perror("fanout data cbpf");
+ exit(1);
+ }
+}
+
+static void sock_fanout_getopts(int fd, uint16_t *typeflags, uint16_t *group_id)
+{
+ int sockopt;
+ socklen_t sockopt_len = sizeof(sockopt);
+
+ if (getsockopt(fd, SOL_PACKET, PACKET_FANOUT,
+ &sockopt, &sockopt_len)) {
+ perror("failed to getsockopt");
+ exit(1);
+ }
+ *typeflags = sockopt >> 16;
+ *group_id = sockopt & 0xfffff;
+}
+
+static void sock_fanout_set_ebpf(int fd)
+{
+ static char log_buf[65536];
+
+ const int len_off = __builtin_offsetof(struct __sk_buff, len);
+ struct bpf_insn prog[] = {
+ { BPF_ALU64 | BPF_MOV | BPF_X, 6, 1, 0, 0 },
+ { BPF_LDX | BPF_W | BPF_MEM, 0, 6, len_off, 0 },
+ { BPF_JMP | BPF_JGE | BPF_K, 0, 0, 1, DATA_LEN },
+ { BPF_JMP | BPF_JA | BPF_K, 0, 0, 4, 0 },
+ { BPF_LD | BPF_B | BPF_ABS, 0, 0, 0, 0x50 },
+ { BPF_JMP | BPF_JEQ | BPF_K, 0, 0, 2, DATA_CHAR },
+ { BPF_JMP | BPF_JEQ | BPF_K, 0, 0, 1, DATA_CHAR_1 },
+ { BPF_ALU | BPF_MOV | BPF_K, 0, 0, 0, 0 },
+ { BPF_JMP | BPF_EXIT, 0, 0, 0, 0 }
+ };
+ union bpf_attr attr;
+ int pfd;
+
+ memset(&attr, 0, sizeof(attr));
+ attr.prog_type = BPF_PROG_TYPE_SOCKET_FILTER;
+ attr.insns = (unsigned long) prog;
+ attr.insn_cnt = sizeof(prog) / sizeof(prog[0]);
+ attr.license = (unsigned long) "GPL";
+ attr.log_buf = (unsigned long) log_buf,
+ attr.log_size = sizeof(log_buf),
+ attr.log_level = 1,
+
+ pfd = syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr));
+ if (pfd < 0) {
+ perror("bpf");
+ fprintf(stderr, "bpf verifier:\n%s\n", log_buf);
+ exit(1);
+ }
+
+ if (setsockopt(fd, SOL_PACKET, PACKET_FANOUT_DATA, &pfd, sizeof(pfd))) {
+ perror("fanout data ebpf");
+ exit(1);
+ }
+
+ if (close(pfd)) {
+ perror("close ebpf");
+ exit(1);
+ }
+}
+
+static char *sock_fanout_open_ring(int fd)
+{
+ struct tpacket_req req = {
+ .tp_block_size = getpagesize(),
+ .tp_frame_size = getpagesize(),
+ .tp_block_nr = RING_NUM_FRAMES,
+ .tp_frame_nr = RING_NUM_FRAMES,
+ };
+ char *ring;
+ int val = TPACKET_V2;
+
+ if (setsockopt(fd, SOL_PACKET, PACKET_VERSION, (void *) &val,
+ sizeof(val))) {
+ perror("packetsock ring setsockopt version");
+ exit(1);
+ }
+ if (setsockopt(fd, SOL_PACKET, PACKET_RX_RING, (void *) &req,
+ sizeof(req))) {
+ perror("packetsock ring setsockopt");
+ exit(1);
+ }
+
+ ring = mmap(0, req.tp_block_size * req.tp_block_nr,
+ PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+ if (ring == MAP_FAILED) {
+ perror("packetsock ring mmap");
+ exit(1);
+ }
+
+ return ring;
+}
+
+static int sock_fanout_read_ring(int fd, void *ring)
+{
+ struct tpacket2_hdr *header = ring;
+ int count = 0;
+
+ while (count < RING_NUM_FRAMES && header->tp_status & TP_STATUS_USER) {
+ count++;
+ header = ring + (count * getpagesize());
+ }
+
+ return count;
+}
+
+static int sock_fanout_read(int fds[], char *rings[], const int expect[])
+{
+ int ret[2];
+
+ ret[0] = sock_fanout_read_ring(fds[0], rings[0]);
+ ret[1] = sock_fanout_read_ring(fds[1], rings[1]);
+
+ fprintf(stderr, "info: count=%d,%d, expect=%d,%d\n",
+ ret[0], ret[1], expect[0], expect[1]);
+
+ if ((!(ret[0] == expect[0] && ret[1] == expect[1])) &&
+ (!(ret[0] == expect[1] && ret[1] == expect[0]))) {
+ fprintf(stderr, "warning: incorrect queue lengths\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+/* Test illegal mode + flag combination */
+static void test_control_single(void)
+{
+ fprintf(stderr, "test: control single socket\n");
+
+ if (sock_fanout_open(PACKET_FANOUT_ROLLOVER |
+ PACKET_FANOUT_FLAG_ROLLOVER, 0) != -1) {
+ fprintf(stderr, "ERROR: opened socket with dual rollover\n");
+ exit(1);
+ }
+}
+
+/* Test illegal group with different modes or flags */
+static void test_control_group(void)
+{
+ int fds[2];
+
+ fprintf(stderr, "test: control multiple sockets\n");
+
+ fds[0] = sock_fanout_open(PACKET_FANOUT_HASH, 0);
+ if (fds[0] == -1) {
+ fprintf(stderr, "ERROR: failed to open HASH socket\n");
+ exit(1);
+ }
+ if (sock_fanout_open(PACKET_FANOUT_HASH |
+ PACKET_FANOUT_FLAG_DEFRAG, 0) != -1) {
+ fprintf(stderr, "ERROR: joined group with wrong flag defrag\n");
+ exit(1);
+ }
+ if (sock_fanout_open(PACKET_FANOUT_HASH |
+ PACKET_FANOUT_FLAG_ROLLOVER, 0) != -1) {
+ fprintf(stderr, "ERROR: joined group with wrong flag ro\n");
+ exit(1);
+ }
+ if (sock_fanout_open(PACKET_FANOUT_CPU, 0) != -1) {
+ fprintf(stderr, "ERROR: joined group with wrong mode\n");
+ exit(1);
+ }
+ fds[1] = sock_fanout_open(PACKET_FANOUT_HASH, 0);
+ if (fds[1] == -1) {
+ fprintf(stderr, "ERROR: failed to join group\n");
+ exit(1);
+ }
+ if (close(fds[1]) || close(fds[0])) {
+ fprintf(stderr, "ERROR: closing sockets\n");
+ exit(1);
+ }
+}
+
+/* Test creating a unique fanout group ids */
+static void test_unique_fanout_group_ids(void)
+{
+ int fds[3];
+ uint16_t typeflags, first_group_id, second_group_id;
+
+ fprintf(stderr, "test: unique ids\n");
+
+ fds[0] = sock_fanout_open(PACKET_FANOUT_HASH |
+ PACKET_FANOUT_FLAG_UNIQUEID, 0);
+ if (fds[0] == -1) {
+ fprintf(stderr, "ERROR: failed to create a unique id group.\n");
+ exit(1);
+ }
+
+ sock_fanout_getopts(fds[0], &typeflags, &first_group_id);
+ if (typeflags != PACKET_FANOUT_HASH) {
+ fprintf(stderr, "ERROR: unexpected typeflags %x\n", typeflags);
+ exit(1);
+ }
+
+ if (sock_fanout_open(PACKET_FANOUT_CPU, first_group_id) != -1) {
+ fprintf(stderr, "ERROR: joined group with wrong type.\n");
+ exit(1);
+ }
+
+ fds[1] = sock_fanout_open(PACKET_FANOUT_HASH, first_group_id);
+ if (fds[1] == -1) {
+ fprintf(stderr,
+ "ERROR: failed to join previously created group.\n");
+ exit(1);
+ }
+
+ fds[2] = sock_fanout_open(PACKET_FANOUT_HASH |
+ PACKET_FANOUT_FLAG_UNIQUEID, 0);
+ if (fds[2] == -1) {
+ fprintf(stderr,
+ "ERROR: failed to create a second unique id group.\n");
+ exit(1);
+ }
+
+ sock_fanout_getopts(fds[2], &typeflags, &second_group_id);
+ if (sock_fanout_open(PACKET_FANOUT_HASH | PACKET_FANOUT_FLAG_UNIQUEID,
+ second_group_id) != -1) {
+ fprintf(stderr,
+ "ERROR: specified a group id when requesting unique id\n");
+ exit(1);
+ }
+
+ if (close(fds[0]) || close(fds[1]) || close(fds[2])) {
+ fprintf(stderr, "ERROR: closing sockets\n");
+ exit(1);
+ }
+}
+
+static int test_datapath(uint16_t typeflags, int port_off,
+ const int expect1[], const int expect2[])
+{
+ const int expect0[] = { 0, 0 };
+ char *rings[2];
+ uint8_t type = typeflags & 0xFF;
+ int fds[2], fds_udp[2][2], ret;
+
+ fprintf(stderr, "\ntest: datapath 0x%hx ports %hu,%hu\n",
+ typeflags, (uint16_t)PORT_BASE,
+ (uint16_t)(PORT_BASE + port_off));
+
+ fds[0] = sock_fanout_open(typeflags, 0);
+ fds[1] = sock_fanout_open(typeflags, 0);
+ if (fds[0] == -1 || fds[1] == -1) {
+ fprintf(stderr, "ERROR: failed open\n");
+ exit(1);
+ }
+ if (type == PACKET_FANOUT_CBPF)
+ sock_fanout_set_cbpf(fds[0]);
+ else if (type == PACKET_FANOUT_EBPF)
+ sock_fanout_set_ebpf(fds[0]);
+
+ rings[0] = sock_fanout_open_ring(fds[0]);
+ rings[1] = sock_fanout_open_ring(fds[1]);
+ pair_udp_open(fds_udp[0], PORT_BASE);
+ pair_udp_open(fds_udp[1], PORT_BASE + port_off);
+ sock_fanout_read(fds, rings, expect0);
+
+ /* Send data, but not enough to overflow a queue */
+ pair_udp_send(fds_udp[0], 15);
+ pair_udp_send_char(fds_udp[1], 5, DATA_CHAR_1);
+ ret = sock_fanout_read(fds, rings, expect1);
+
+ /* Send more data, overflow the queue */
+ pair_udp_send_char(fds_udp[0], 15, DATA_CHAR_1);
+ /* TODO: ensure consistent order between expect1 and expect2 */
+ ret |= sock_fanout_read(fds, rings, expect2);
+
+ if (munmap(rings[1], RING_NUM_FRAMES * getpagesize()) ||
+ munmap(rings[0], RING_NUM_FRAMES * getpagesize())) {
+ fprintf(stderr, "close rings\n");
+ exit(1);
+ }
+ if (close(fds_udp[1][1]) || close(fds_udp[1][0]) ||
+ close(fds_udp[0][1]) || close(fds_udp[0][0]) ||
+ close(fds[1]) || close(fds[0])) {
+ fprintf(stderr, "close datapath\n");
+ exit(1);
+ }
+
+ return ret;
+}
+
+static int set_cpuaffinity(int cpuid)
+{
+ cpu_set_t mask;
+
+ CPU_ZERO(&mask);
+ CPU_SET(cpuid, &mask);
+ if (sched_setaffinity(0, sizeof(mask), &mask)) {
+ if (errno != EINVAL) {
+ fprintf(stderr, "setaffinity %d\n", cpuid);
+ exit(1);
+ }
+ return 1;
+ }
+
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ const int expect_hash[2][2] = { { 15, 5 }, { 20, 5 } };
+ const int expect_hash_rb[2][2] = { { 15, 5 }, { 20, 15 } };
+ const int expect_lb[2][2] = { { 10, 10 }, { 18, 17 } };
+ const int expect_rb[2][2] = { { 15, 5 }, { 20, 15 } };
+ const int expect_cpu0[2][2] = { { 20, 0 }, { 20, 0 } };
+ const int expect_cpu1[2][2] = { { 0, 20 }, { 0, 20 } };
+ const int expect_bpf[2][2] = { { 15, 5 }, { 15, 20 } };
+ const int expect_uniqueid[2][2] = { { 20, 20}, { 20, 20 } };
+ int port_off = 2, tries = 20, ret;
+
+ test_control_single();
+ test_control_group();
+ test_unique_fanout_group_ids();
+
+ /* find a set of ports that do not collide onto the same socket */
+ ret = test_datapath(PACKET_FANOUT_HASH, port_off,
+ expect_hash[0], expect_hash[1]);
+ while (ret) {
+ fprintf(stderr, "info: trying alternate ports (%d)\n", tries);
+ ret = test_datapath(PACKET_FANOUT_HASH, ++port_off,
+ expect_hash[0], expect_hash[1]);
+ if (!--tries) {
+ fprintf(stderr, "too many collisions\n");
+ return 1;
+ }
+ }
+
+ ret |= test_datapath(PACKET_FANOUT_HASH | PACKET_FANOUT_FLAG_ROLLOVER,
+ port_off, expect_hash_rb[0], expect_hash_rb[1]);
+ ret |= test_datapath(PACKET_FANOUT_LB,
+ port_off, expect_lb[0], expect_lb[1]);
+ ret |= test_datapath(PACKET_FANOUT_ROLLOVER,
+ port_off, expect_rb[0], expect_rb[1]);
+
+ ret |= test_datapath(PACKET_FANOUT_CBPF,
+ port_off, expect_bpf[0], expect_bpf[1]);
+ ret |= test_datapath(PACKET_FANOUT_EBPF,
+ port_off, expect_bpf[0], expect_bpf[1]);
+
+ set_cpuaffinity(0);
+ ret |= test_datapath(PACKET_FANOUT_CPU, port_off,
+ expect_cpu0[0], expect_cpu0[1]);
+ if (!set_cpuaffinity(1))
+ /* TODO: test that choice alternates with previous */
+ ret |= test_datapath(PACKET_FANOUT_CPU, port_off,
+ expect_cpu1[0], expect_cpu1[1]);
+
+ ret |= test_datapath(PACKET_FANOUT_FLAG_UNIQUEID, port_off,
+ expect_uniqueid[0], expect_uniqueid[1]);
+
+ if (ret)
+ return 1;
+
+ printf("OK. All tests passed\n");
+ return 0;
+}
diff --git a/tools/testing/selftests/net/psock_lib.h b/tools/testing/selftests/net/psock_lib.h
new file mode 100644
index 000000000..faa884385
--- /dev/null
+++ b/tools/testing/selftests/net/psock_lib.h
@@ -0,0 +1,144 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2013 Google Inc.
+ * Author: Willem de Bruijn <willemb@google.com>
+ * Daniel Borkmann <dborkman@redhat.com>
+ */
+
+#ifndef PSOCK_LIB_H
+#define PSOCK_LIB_H
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <string.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+
+#define DATA_LEN 100
+#define DATA_CHAR 'a'
+#define DATA_CHAR_1 'b'
+
+#define PORT_BASE 8000
+
+#ifndef __maybe_unused
+# define __maybe_unused __attribute__ ((__unused__))
+#endif
+
+static __maybe_unused void pair_udp_setfilter(int fd)
+{
+ /* the filter below checks for all of the following conditions that
+ * are based on the contents of create_payload()
+ * ether type 0x800 and
+ * ip proto udp and
+ * skb->len == DATA_LEN and
+ * udp[38] == 'a' or udp[38] == 'b'
+ * It can be generated from the following bpf_asm input:
+ * ldh [12]
+ * jne #0x800, drop ; ETH_P_IP
+ * ldb [23]
+ * jneq #17, drop ; IPPROTO_UDP
+ * ld len ; ld skb->len
+ * jlt #100, drop ; DATA_LEN
+ * ldb [80]
+ * jeq #97, pass ; DATA_CHAR
+ * jne #98, drop ; DATA_CHAR_1
+ * pass:
+ * ret #-1
+ * drop:
+ * ret #0
+ */
+ struct sock_filter bpf_filter[] = {
+ { 0x28, 0, 0, 0x0000000c },
+ { 0x15, 0, 8, 0x00000800 },
+ { 0x30, 0, 0, 0x00000017 },
+ { 0x15, 0, 6, 0x00000011 },
+ { 0x80, 0, 0, 0000000000 },
+ { 0x35, 0, 4, 0x00000064 },
+ { 0x30, 0, 0, 0x00000050 },
+ { 0x15, 1, 0, 0x00000061 },
+ { 0x15, 0, 1, 0x00000062 },
+ { 0x06, 0, 0, 0xffffffff },
+ { 0x06, 0, 0, 0000000000 },
+ };
+ struct sock_fprog bpf_prog;
+
+ bpf_prog.filter = bpf_filter;
+ bpf_prog.len = sizeof(bpf_filter) / sizeof(struct sock_filter);
+
+ if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &bpf_prog,
+ sizeof(bpf_prog))) {
+ perror("setsockopt SO_ATTACH_FILTER");
+ exit(1);
+ }
+}
+
+static __maybe_unused void pair_udp_open(int fds[], uint16_t port)
+{
+ struct sockaddr_in saddr, daddr;
+
+ fds[0] = socket(PF_INET, SOCK_DGRAM, 0);
+ fds[1] = socket(PF_INET, SOCK_DGRAM, 0);
+ if (fds[0] == -1 || fds[1] == -1) {
+ fprintf(stderr, "ERROR: socket dgram\n");
+ exit(1);
+ }
+
+ memset(&saddr, 0, sizeof(saddr));
+ saddr.sin_family = AF_INET;
+ saddr.sin_port = htons(port);
+ saddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+
+ memset(&daddr, 0, sizeof(daddr));
+ daddr.sin_family = AF_INET;
+ daddr.sin_port = htons(port + 1);
+ daddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+
+ /* must bind both to get consistent hash result */
+ if (bind(fds[1], (void *) &daddr, sizeof(daddr))) {
+ perror("bind");
+ exit(1);
+ }
+ if (bind(fds[0], (void *) &saddr, sizeof(saddr))) {
+ perror("bind");
+ exit(1);
+ }
+ if (connect(fds[0], (void *) &daddr, sizeof(daddr))) {
+ perror("connect");
+ exit(1);
+ }
+}
+
+static __maybe_unused void pair_udp_send_char(int fds[], int num, char payload)
+{
+ char buf[DATA_LEN], rbuf[DATA_LEN];
+
+ memset(buf, payload, sizeof(buf));
+ while (num--) {
+ /* Should really handle EINTR and EAGAIN */
+ if (write(fds[0], buf, sizeof(buf)) != sizeof(buf)) {
+ fprintf(stderr, "ERROR: send failed left=%d\n", num);
+ exit(1);
+ }
+ if (read(fds[1], rbuf, sizeof(rbuf)) != sizeof(rbuf)) {
+ fprintf(stderr, "ERROR: recv failed left=%d\n", num);
+ exit(1);
+ }
+ if (memcmp(buf, rbuf, sizeof(buf))) {
+ fprintf(stderr, "ERROR: data failed left=%d\n", num);
+ exit(1);
+ }
+ }
+}
+
+static __maybe_unused void pair_udp_send(int fds[], int num)
+{
+ return pair_udp_send_char(fds, num, DATA_CHAR);
+}
+
+static __maybe_unused void pair_udp_close(int fds[])
+{
+ close(fds[0]);
+ close(fds[1]);
+}
+
+#endif /* PSOCK_LIB_H */
diff --git a/tools/testing/selftests/net/psock_snd.c b/tools/testing/selftests/net/psock_snd.c
new file mode 100644
index 000000000..7d15e10a9
--- /dev/null
+++ b/tools/testing/selftests/net/psock_snd.c
@@ -0,0 +1,397 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <linux/filter.h>
+#include <linux/bpf.h>
+#include <linux/if_packet.h>
+#include <linux/if_vlan.h>
+#include <linux/virtio_net.h>
+#include <net/if.h>
+#include <net/ethernet.h>
+#include <netinet/ip.h>
+#include <netinet/udp.h>
+#include <poll.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "psock_lib.h"
+
+static bool cfg_use_bind;
+static bool cfg_use_csum_off;
+static bool cfg_use_csum_off_bad;
+static bool cfg_use_dgram;
+static bool cfg_use_gso;
+static bool cfg_use_qdisc_bypass;
+static bool cfg_use_vlan;
+static bool cfg_use_vnet;
+
+static char *cfg_ifname = "lo";
+static int cfg_mtu = 1500;
+static int cfg_payload_len = DATA_LEN;
+static int cfg_truncate_len = INT_MAX;
+static uint16_t cfg_port = 8000;
+
+/* test sending up to max mtu + 1 */
+#define TEST_SZ (sizeof(struct virtio_net_hdr) + ETH_HLEN + ETH_MAX_MTU + 1)
+
+static char tbuf[TEST_SZ], rbuf[TEST_SZ];
+
+static unsigned long add_csum_hword(const uint16_t *start, int num_u16)
+{
+ unsigned long sum = 0;
+ int i;
+
+ for (i = 0; i < num_u16; i++)
+ sum += start[i];
+
+ return sum;
+}
+
+static uint16_t build_ip_csum(const uint16_t *start, int num_u16,
+ unsigned long sum)
+{
+ sum += add_csum_hword(start, num_u16);
+
+ while (sum >> 16)
+ sum = (sum & 0xffff) + (sum >> 16);
+
+ return ~sum;
+}
+
+static int build_vnet_header(void *header)
+{
+ struct virtio_net_hdr *vh = header;
+
+ vh->hdr_len = ETH_HLEN + sizeof(struct iphdr) + sizeof(struct udphdr);
+
+ if (cfg_use_csum_off) {
+ vh->flags |= VIRTIO_NET_HDR_F_NEEDS_CSUM;
+ vh->csum_start = ETH_HLEN + sizeof(struct iphdr);
+ vh->csum_offset = __builtin_offsetof(struct udphdr, check);
+
+ /* position check field exactly one byte beyond end of packet */
+ if (cfg_use_csum_off_bad)
+ vh->csum_start += sizeof(struct udphdr) + cfg_payload_len -
+ vh->csum_offset - 1;
+ }
+
+ if (cfg_use_gso) {
+ vh->gso_type = VIRTIO_NET_HDR_GSO_UDP;
+ vh->gso_size = cfg_mtu - sizeof(struct iphdr);
+ }
+
+ return sizeof(*vh);
+}
+
+static int build_eth_header(void *header)
+{
+ struct ethhdr *eth = header;
+
+ if (cfg_use_vlan) {
+ uint16_t *tag = header + ETH_HLEN;
+
+ eth->h_proto = htons(ETH_P_8021Q);
+ tag[1] = htons(ETH_P_IP);
+ return ETH_HLEN + 4;
+ }
+
+ eth->h_proto = htons(ETH_P_IP);
+ return ETH_HLEN;
+}
+
+static int build_ipv4_header(void *header, int payload_len)
+{
+ struct iphdr *iph = header;
+
+ iph->ihl = 5;
+ iph->version = 4;
+ iph->ttl = 8;
+ iph->tot_len = htons(sizeof(*iph) + sizeof(struct udphdr) + payload_len);
+ iph->id = htons(1337);
+ iph->protocol = IPPROTO_UDP;
+ iph->saddr = htonl((172 << 24) | (17 << 16) | 2);
+ iph->daddr = htonl((172 << 24) | (17 << 16) | 1);
+ iph->check = build_ip_csum((void *) iph, iph->ihl << 1, 0);
+
+ return iph->ihl << 2;
+}
+
+static int build_udp_header(void *header, int payload_len)
+{
+ const int alen = sizeof(uint32_t);
+ struct udphdr *udph = header;
+ int len = sizeof(*udph) + payload_len;
+
+ udph->source = htons(9);
+ udph->dest = htons(cfg_port);
+ udph->len = htons(len);
+
+ if (cfg_use_csum_off)
+ udph->check = build_ip_csum(header - (2 * alen), alen,
+ htons(IPPROTO_UDP) + udph->len);
+ else
+ udph->check = 0;
+
+ return sizeof(*udph);
+}
+
+static int build_packet(int payload_len)
+{
+ int off = 0;
+
+ off += build_vnet_header(tbuf);
+ off += build_eth_header(tbuf + off);
+ off += build_ipv4_header(tbuf + off, payload_len);
+ off += build_udp_header(tbuf + off, payload_len);
+
+ if (off + payload_len > sizeof(tbuf))
+ error(1, 0, "payload length exceeds max");
+
+ memset(tbuf + off, DATA_CHAR, payload_len);
+
+ return off + payload_len;
+}
+
+static void do_bind(int fd)
+{
+ struct sockaddr_ll laddr = {0};
+
+ laddr.sll_family = AF_PACKET;
+ laddr.sll_protocol = htons(ETH_P_IP);
+ laddr.sll_ifindex = if_nametoindex(cfg_ifname);
+ if (!laddr.sll_ifindex)
+ error(1, errno, "if_nametoindex");
+
+ if (bind(fd, (void *)&laddr, sizeof(laddr)))
+ error(1, errno, "bind");
+}
+
+static void do_send(int fd, char *buf, int len)
+{
+ int ret;
+
+ if (!cfg_use_vnet) {
+ buf += sizeof(struct virtio_net_hdr);
+ len -= sizeof(struct virtio_net_hdr);
+ }
+ if (cfg_use_dgram) {
+ buf += ETH_HLEN;
+ len -= ETH_HLEN;
+ }
+
+ if (cfg_use_bind) {
+ ret = write(fd, buf, len);
+ } else {
+ struct sockaddr_ll laddr = {0};
+
+ laddr.sll_protocol = htons(ETH_P_IP);
+ laddr.sll_ifindex = if_nametoindex(cfg_ifname);
+ if (!laddr.sll_ifindex)
+ error(1, errno, "if_nametoindex");
+
+ ret = sendto(fd, buf, len, 0, (void *)&laddr, sizeof(laddr));
+ }
+
+ if (ret == -1)
+ error(1, errno, "write");
+ if (ret != len)
+ error(1, 0, "write: %u %u", ret, len);
+
+ fprintf(stderr, "tx: %u\n", ret);
+}
+
+static int do_tx(void)
+{
+ const int one = 1;
+ int fd, len;
+
+ fd = socket(PF_PACKET, cfg_use_dgram ? SOCK_DGRAM : SOCK_RAW, 0);
+ if (fd == -1)
+ error(1, errno, "socket t");
+
+ if (cfg_use_bind)
+ do_bind(fd);
+
+ if (cfg_use_qdisc_bypass &&
+ setsockopt(fd, SOL_PACKET, PACKET_QDISC_BYPASS, &one, sizeof(one)))
+ error(1, errno, "setsockopt qdisc bypass");
+
+ if (cfg_use_vnet &&
+ setsockopt(fd, SOL_PACKET, PACKET_VNET_HDR, &one, sizeof(one)))
+ error(1, errno, "setsockopt vnet");
+
+ len = build_packet(cfg_payload_len);
+
+ if (cfg_truncate_len < len)
+ len = cfg_truncate_len;
+
+ do_send(fd, tbuf, len);
+
+ if (close(fd))
+ error(1, errno, "close t");
+
+ return len;
+}
+
+static int setup_rx(void)
+{
+ struct timeval tv = { .tv_usec = 100 * 1000 };
+ struct sockaddr_in raddr = {0};
+ int fd;
+
+ fd = socket(PF_INET, SOCK_DGRAM, 0);
+ if (fd == -1)
+ error(1, errno, "socket r");
+
+ if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)))
+ error(1, errno, "setsockopt rcv timeout");
+
+ raddr.sin_family = AF_INET;
+ raddr.sin_port = htons(cfg_port);
+ raddr.sin_addr.s_addr = htonl(INADDR_ANY);
+
+ if (bind(fd, (void *)&raddr, sizeof(raddr)))
+ error(1, errno, "bind r");
+
+ return fd;
+}
+
+static void do_rx(int fd, int expected_len, char *expected)
+{
+ int ret;
+
+ ret = recv(fd, rbuf, sizeof(rbuf), 0);
+ if (ret == -1)
+ error(1, errno, "recv");
+ if (ret != expected_len)
+ error(1, 0, "recv: %u != %u", ret, expected_len);
+
+ if (memcmp(rbuf, expected, ret))
+ error(1, 0, "recv: data mismatch");
+
+ fprintf(stderr, "rx: %u\n", ret);
+}
+
+static int setup_sniffer(void)
+{
+ struct timeval tv = { .tv_usec = 100 * 1000 };
+ int fd;
+
+ fd = socket(PF_PACKET, SOCK_RAW, 0);
+ if (fd == -1)
+ error(1, errno, "socket p");
+
+ if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)))
+ error(1, errno, "setsockopt rcv timeout");
+
+ pair_udp_setfilter(fd);
+ do_bind(fd);
+
+ return fd;
+}
+
+static void parse_opts(int argc, char **argv)
+{
+ int c;
+
+ while ((c = getopt(argc, argv, "bcCdgl:qt:vV")) != -1) {
+ switch (c) {
+ case 'b':
+ cfg_use_bind = true;
+ break;
+ case 'c':
+ cfg_use_csum_off = true;
+ break;
+ case 'C':
+ cfg_use_csum_off_bad = true;
+ break;
+ case 'd':
+ cfg_use_dgram = true;
+ break;
+ case 'g':
+ cfg_use_gso = true;
+ break;
+ case 'l':
+ cfg_payload_len = strtoul(optarg, NULL, 0);
+ break;
+ case 'q':
+ cfg_use_qdisc_bypass = true;
+ break;
+ case 't':
+ cfg_truncate_len = strtoul(optarg, NULL, 0);
+ break;
+ case 'v':
+ cfg_use_vnet = true;
+ break;
+ case 'V':
+ cfg_use_vlan = true;
+ break;
+ default:
+ error(1, 0, "%s: parse error", argv[0]);
+ }
+ }
+
+ if (cfg_use_vlan && cfg_use_dgram)
+ error(1, 0, "option vlan (-V) conflicts with dgram (-d)");
+
+ if (cfg_use_csum_off && !cfg_use_vnet)
+ error(1, 0, "option csum offload (-c) requires vnet (-v)");
+
+ if (cfg_use_csum_off_bad && !cfg_use_csum_off)
+ error(1, 0, "option csum bad (-C) requires csum offload (-c)");
+
+ if (cfg_use_gso && !cfg_use_csum_off)
+ error(1, 0, "option gso (-g) requires csum offload (-c)");
+}
+
+static void run_test(void)
+{
+ int fdr, fds, total_len;
+
+ fdr = setup_rx();
+ fds = setup_sniffer();
+
+ total_len = do_tx();
+
+ /* BPF filter accepts only this length, vlan changes MAC */
+ if (cfg_payload_len == DATA_LEN && !cfg_use_vlan)
+ do_rx(fds, total_len - sizeof(struct virtio_net_hdr),
+ tbuf + sizeof(struct virtio_net_hdr));
+
+ do_rx(fdr, cfg_payload_len, tbuf + total_len - cfg_payload_len);
+
+ if (close(fds))
+ error(1, errno, "close s");
+ if (close(fdr))
+ error(1, errno, "close r");
+}
+
+int main(int argc, char **argv)
+{
+ parse_opts(argc, argv);
+
+ if (system("ip link set dev lo mtu 1500"))
+ error(1, errno, "ip link set mtu");
+ if (system("ip addr add dev lo 172.17.0.1/24"))
+ error(1, errno, "ip addr add");
+
+ run_test();
+
+ fprintf(stderr, "OK\n\n");
+ return 0;
+}
diff --git a/tools/testing/selftests/net/psock_snd.sh b/tools/testing/selftests/net/psock_snd.sh
new file mode 100755
index 000000000..170be65e0
--- /dev/null
+++ b/tools/testing/selftests/net/psock_snd.sh
@@ -0,0 +1,98 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run a series of packet socket send regression tests
+
+set -e
+
+readonly mtu=1500
+readonly iphlen=20
+readonly udphlen=8
+
+readonly vnet_hlen=10
+readonly eth_hlen=14
+
+readonly mss="$((${mtu} - ${iphlen} - ${udphlen}))"
+readonly mss_exceeds="$((${mss} + 1))"
+
+readonly max_mtu=65535
+readonly max_mss="$((${max_mtu} - ${iphlen} - ${udphlen}))"
+readonly max_mss_exceeds="$((${max_mss} + 1))"
+
+# functional checks (not a full cross-product)
+
+echo "dgram"
+./in_netns.sh ./psock_snd -d
+
+echo "dgram bind"
+./in_netns.sh ./psock_snd -d -b
+
+echo "raw"
+./in_netns.sh ./psock_snd
+
+echo "raw bind"
+./in_netns.sh ./psock_snd -b
+
+echo "raw qdisc bypass"
+./in_netns.sh ./psock_snd -q
+
+echo "raw vlan"
+./in_netns.sh ./psock_snd -V
+
+echo "raw vnet hdr"
+./in_netns.sh ./psock_snd -v
+
+echo "raw csum_off"
+./in_netns.sh ./psock_snd -v -c
+
+echo "raw csum_off with bad offset (expected to fail)"
+(! ./in_netns.sh ./psock_snd -v -c -C)
+
+
+# bounds check: send {max, max + 1, min, min - 1} lengths
+
+echo "raw min size"
+./in_netns.sh ./psock_snd -l 0
+
+echo "raw mtu size"
+./in_netns.sh ./psock_snd -l "${mss}"
+
+echo "raw mtu size + 1 (expected to fail)"
+(! ./in_netns.sh ./psock_snd -l "${mss_exceeds}")
+
+# fails due to ARPHRD_ETHER check in packet_extra_vlan_len_allowed
+#
+# echo "raw vlan mtu size"
+# ./in_netns.sh ./psock_snd -V -l "${mss}"
+
+echo "raw vlan mtu size + 1 (expected to fail)"
+(! ./in_netns.sh ./psock_snd -V -l "${mss_exceeds}")
+
+echo "dgram mtu size"
+./in_netns.sh ./psock_snd -d -l "${mss}"
+
+echo "dgram mtu size + 1 (expected to fail)"
+(! ./in_netns.sh ./psock_snd -d -l "${mss_exceeds}")
+
+echo "raw truncate hlen (expected to fail: does not arrive)"
+(! ./in_netns.sh ./psock_snd -t "$((${vnet_hlen} + ${eth_hlen}))")
+
+echo "raw truncate hlen - 1 (expected to fail: EINVAL)"
+(! ./in_netns.sh ./psock_snd -t "$((${vnet_hlen} + ${eth_hlen} - 1))")
+
+
+# gso checks: implies -l, because with gso len must exceed gso_size
+
+echo "raw gso min size"
+./in_netns.sh ./psock_snd -v -c -g -l "${mss_exceeds}"
+
+echo "raw gso min size - 1 (expected to fail)"
+(! ./in_netns.sh ./psock_snd -v -c -g -l "${mss}")
+
+echo "raw gso max size"
+./in_netns.sh ./psock_snd -v -c -g -l "${max_mss}"
+
+echo "raw gso max size + 1 (expected to fail)"
+(! ./in_netns.sh ./psock_snd -v -c -g -l "${max_mss_exceeds}")
+
+echo "OK. All tests passed"
diff --git a/tools/testing/selftests/net/psock_tpacket.c b/tools/testing/selftests/net/psock_tpacket.c
new file mode 100644
index 000000000..404a2ce75
--- /dev/null
+++ b/tools/testing/selftests/net/psock_tpacket.c
@@ -0,0 +1,850 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2013 Red Hat, Inc.
+ * Author: Daniel Borkmann <dborkman@redhat.com>
+ * Chetan Loke <loke.chetan@gmail.com> (TPACKET_V3 usage example)
+ *
+ * A basic test of packet socket's TPACKET_V1/TPACKET_V2/TPACKET_V3 behavior.
+ *
+ * Control:
+ * Test the setup of the TPACKET socket with different patterns that are
+ * known to fail (TODO) resp. succeed (OK).
+ *
+ * Datapath:
+ * Open a pair of packet sockets and send resp. receive an a priori known
+ * packet pattern accross the sockets and check if it was received resp.
+ * sent correctly. Fanout in combination with RX_RING is currently not
+ * tested here.
+ *
+ * The test currently runs for
+ * - TPACKET_V1: RX_RING, TX_RING
+ * - TPACKET_V2: RX_RING, TX_RING
+ * - TPACKET_V3: RX_RING
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <sys/mman.h>
+#include <linux/if_packet.h>
+#include <linux/filter.h>
+#include <ctype.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <bits/wordsize.h>
+#include <net/ethernet.h>
+#include <netinet/ip.h>
+#include <arpa/inet.h>
+#include <stdint.h>
+#include <string.h>
+#include <assert.h>
+#include <net/if.h>
+#include <inttypes.h>
+#include <poll.h>
+
+#include "psock_lib.h"
+
+#include "../kselftest.h"
+
+#ifndef bug_on
+# define bug_on(cond) assert(!(cond))
+#endif
+
+#ifndef __aligned_tpacket
+# define __aligned_tpacket __attribute__((aligned(TPACKET_ALIGNMENT)))
+#endif
+
+#ifndef __align_tpacket
+# define __align_tpacket(x) __attribute__((aligned(TPACKET_ALIGN(x))))
+#endif
+
+#define NUM_PACKETS 100
+#define ALIGN_8(x) (((x) + 8 - 1) & ~(8 - 1))
+
+struct ring {
+ struct iovec *rd;
+ uint8_t *mm_space;
+ size_t mm_len, rd_len;
+ struct sockaddr_ll ll;
+ void (*walk)(int sock, struct ring *ring);
+ int type, rd_num, flen, version;
+ union {
+ struct tpacket_req req;
+ struct tpacket_req3 req3;
+ };
+};
+
+struct block_desc {
+ uint32_t version;
+ uint32_t offset_to_priv;
+ struct tpacket_hdr_v1 h1;
+};
+
+union frame_map {
+ struct {
+ struct tpacket_hdr tp_h __aligned_tpacket;
+ struct sockaddr_ll s_ll __align_tpacket(sizeof(struct tpacket_hdr));
+ } *v1;
+ struct {
+ struct tpacket2_hdr tp_h __aligned_tpacket;
+ struct sockaddr_ll s_ll __align_tpacket(sizeof(struct tpacket2_hdr));
+ } *v2;
+ void *raw;
+};
+
+static unsigned int total_packets, total_bytes;
+
+static int pfsocket(int ver)
+{
+ int ret, sock = socket(PF_PACKET, SOCK_RAW, 0);
+ if (sock == -1) {
+ perror("socket");
+ exit(1);
+ }
+
+ ret = setsockopt(sock, SOL_PACKET, PACKET_VERSION, &ver, sizeof(ver));
+ if (ret == -1) {
+ perror("setsockopt");
+ exit(1);
+ }
+
+ return sock;
+}
+
+static void status_bar_update(void)
+{
+ if (total_packets % 10 == 0) {
+ fprintf(stderr, ".");
+ fflush(stderr);
+ }
+}
+
+static void test_payload(void *pay, size_t len)
+{
+ struct ethhdr *eth = pay;
+
+ if (len < sizeof(struct ethhdr)) {
+ fprintf(stderr, "test_payload: packet too "
+ "small: %zu bytes!\n", len);
+ exit(1);
+ }
+
+ if (eth->h_proto != htons(ETH_P_IP)) {
+ fprintf(stderr, "test_payload: wrong ethernet "
+ "type: 0x%x!\n", ntohs(eth->h_proto));
+ exit(1);
+ }
+}
+
+static void create_payload(void *pay, size_t *len)
+{
+ int i;
+ struct ethhdr *eth = pay;
+ struct iphdr *ip = pay + sizeof(*eth);
+
+ /* Lets create some broken crap, that still passes
+ * our BPF filter.
+ */
+
+ *len = DATA_LEN + 42;
+
+ memset(pay, 0xff, ETH_ALEN * 2);
+ eth->h_proto = htons(ETH_P_IP);
+
+ for (i = 0; i < sizeof(*ip); ++i)
+ ((uint8_t *) pay)[i + sizeof(*eth)] = (uint8_t) rand();
+
+ ip->ihl = 5;
+ ip->version = 4;
+ ip->protocol = 0x11;
+ ip->frag_off = 0;
+ ip->ttl = 64;
+ ip->tot_len = htons((uint16_t) *len - sizeof(*eth));
+
+ ip->saddr = htonl(INADDR_LOOPBACK);
+ ip->daddr = htonl(INADDR_LOOPBACK);
+
+ memset(pay + sizeof(*eth) + sizeof(*ip),
+ DATA_CHAR, DATA_LEN);
+}
+
+static inline int __v1_rx_kernel_ready(struct tpacket_hdr *hdr)
+{
+ return ((hdr->tp_status & TP_STATUS_USER) == TP_STATUS_USER);
+}
+
+static inline void __v1_rx_user_ready(struct tpacket_hdr *hdr)
+{
+ hdr->tp_status = TP_STATUS_KERNEL;
+ __sync_synchronize();
+}
+
+static inline int __v2_rx_kernel_ready(struct tpacket2_hdr *hdr)
+{
+ return ((hdr->tp_status & TP_STATUS_USER) == TP_STATUS_USER);
+}
+
+static inline void __v2_rx_user_ready(struct tpacket2_hdr *hdr)
+{
+ hdr->tp_status = TP_STATUS_KERNEL;
+ __sync_synchronize();
+}
+
+static inline int __v1_v2_rx_kernel_ready(void *base, int version)
+{
+ switch (version) {
+ case TPACKET_V1:
+ return __v1_rx_kernel_ready(base);
+ case TPACKET_V2:
+ return __v2_rx_kernel_ready(base);
+ default:
+ bug_on(1);
+ return 0;
+ }
+}
+
+static inline void __v1_v2_rx_user_ready(void *base, int version)
+{
+ switch (version) {
+ case TPACKET_V1:
+ __v1_rx_user_ready(base);
+ break;
+ case TPACKET_V2:
+ __v2_rx_user_ready(base);
+ break;
+ }
+}
+
+static void walk_v1_v2_rx(int sock, struct ring *ring)
+{
+ struct pollfd pfd;
+ int udp_sock[2];
+ union frame_map ppd;
+ unsigned int frame_num = 0;
+
+ bug_on(ring->type != PACKET_RX_RING);
+
+ pair_udp_open(udp_sock, PORT_BASE);
+
+ memset(&pfd, 0, sizeof(pfd));
+ pfd.fd = sock;
+ pfd.events = POLLIN | POLLERR;
+ pfd.revents = 0;
+
+ pair_udp_send(udp_sock, NUM_PACKETS);
+
+ while (total_packets < NUM_PACKETS * 2) {
+ while (__v1_v2_rx_kernel_ready(ring->rd[frame_num].iov_base,
+ ring->version)) {
+ ppd.raw = ring->rd[frame_num].iov_base;
+
+ switch (ring->version) {
+ case TPACKET_V1:
+ test_payload((uint8_t *) ppd.raw + ppd.v1->tp_h.tp_mac,
+ ppd.v1->tp_h.tp_snaplen);
+ total_bytes += ppd.v1->tp_h.tp_snaplen;
+ break;
+
+ case TPACKET_V2:
+ test_payload((uint8_t *) ppd.raw + ppd.v2->tp_h.tp_mac,
+ ppd.v2->tp_h.tp_snaplen);
+ total_bytes += ppd.v2->tp_h.tp_snaplen;
+ break;
+ }
+
+ status_bar_update();
+ total_packets++;
+
+ __v1_v2_rx_user_ready(ppd.raw, ring->version);
+
+ frame_num = (frame_num + 1) % ring->rd_num;
+ }
+
+ poll(&pfd, 1, 1);
+ }
+
+ pair_udp_close(udp_sock);
+
+ if (total_packets != 2 * NUM_PACKETS) {
+ fprintf(stderr, "walk_v%d_rx: received %u out of %u pkts\n",
+ ring->version, total_packets, NUM_PACKETS);
+ exit(1);
+ }
+
+ fprintf(stderr, " %u pkts (%u bytes)", NUM_PACKETS, total_bytes >> 1);
+}
+
+static inline int __v1_tx_kernel_ready(struct tpacket_hdr *hdr)
+{
+ return !(hdr->tp_status & (TP_STATUS_SEND_REQUEST | TP_STATUS_SENDING));
+}
+
+static inline void __v1_tx_user_ready(struct tpacket_hdr *hdr)
+{
+ hdr->tp_status = TP_STATUS_SEND_REQUEST;
+ __sync_synchronize();
+}
+
+static inline int __v2_tx_kernel_ready(struct tpacket2_hdr *hdr)
+{
+ return !(hdr->tp_status & (TP_STATUS_SEND_REQUEST | TP_STATUS_SENDING));
+}
+
+static inline void __v2_tx_user_ready(struct tpacket2_hdr *hdr)
+{
+ hdr->tp_status = TP_STATUS_SEND_REQUEST;
+ __sync_synchronize();
+}
+
+static inline int __v3_tx_kernel_ready(struct tpacket3_hdr *hdr)
+{
+ return !(hdr->tp_status & (TP_STATUS_SEND_REQUEST | TP_STATUS_SENDING));
+}
+
+static inline void __v3_tx_user_ready(struct tpacket3_hdr *hdr)
+{
+ hdr->tp_status = TP_STATUS_SEND_REQUEST;
+ __sync_synchronize();
+}
+
+static inline int __tx_kernel_ready(void *base, int version)
+{
+ switch (version) {
+ case TPACKET_V1:
+ return __v1_tx_kernel_ready(base);
+ case TPACKET_V2:
+ return __v2_tx_kernel_ready(base);
+ case TPACKET_V3:
+ return __v3_tx_kernel_ready(base);
+ default:
+ bug_on(1);
+ return 0;
+ }
+}
+
+static inline void __tx_user_ready(void *base, int version)
+{
+ switch (version) {
+ case TPACKET_V1:
+ __v1_tx_user_ready(base);
+ break;
+ case TPACKET_V2:
+ __v2_tx_user_ready(base);
+ break;
+ case TPACKET_V3:
+ __v3_tx_user_ready(base);
+ break;
+ }
+}
+
+static void __v1_v2_set_packet_loss_discard(int sock)
+{
+ int ret, discard = 1;
+
+ ret = setsockopt(sock, SOL_PACKET, PACKET_LOSS, (void *) &discard,
+ sizeof(discard));
+ if (ret == -1) {
+ perror("setsockopt");
+ exit(1);
+ }
+}
+
+static inline void *get_next_frame(struct ring *ring, int n)
+{
+ uint8_t *f0 = ring->rd[0].iov_base;
+
+ switch (ring->version) {
+ case TPACKET_V1:
+ case TPACKET_V2:
+ return ring->rd[n].iov_base;
+ case TPACKET_V3:
+ return f0 + (n * ring->req3.tp_frame_size);
+ default:
+ bug_on(1);
+ }
+}
+
+static void walk_tx(int sock, struct ring *ring)
+{
+ struct pollfd pfd;
+ int rcv_sock, ret;
+ size_t packet_len;
+ union frame_map ppd;
+ char packet[1024];
+ unsigned int frame_num = 0, got = 0;
+ struct sockaddr_ll ll = {
+ .sll_family = PF_PACKET,
+ .sll_halen = ETH_ALEN,
+ };
+ int nframes;
+
+ /* TPACKET_V{1,2} sets up the ring->rd* related variables based
+ * on frames (e.g., rd_num is tp_frame_nr) whereas V3 sets these
+ * up based on blocks (e.g, rd_num is tp_block_nr)
+ */
+ if (ring->version <= TPACKET_V2)
+ nframes = ring->rd_num;
+ else
+ nframes = ring->req3.tp_frame_nr;
+
+ bug_on(ring->type != PACKET_TX_RING);
+ bug_on(nframes < NUM_PACKETS);
+
+ rcv_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
+ if (rcv_sock == -1) {
+ perror("socket");
+ exit(1);
+ }
+
+ pair_udp_setfilter(rcv_sock);
+
+ ll.sll_ifindex = if_nametoindex("lo");
+ ret = bind(rcv_sock, (struct sockaddr *) &ll, sizeof(ll));
+ if (ret == -1) {
+ perror("bind");
+ exit(1);
+ }
+
+ memset(&pfd, 0, sizeof(pfd));
+ pfd.fd = sock;
+ pfd.events = POLLOUT | POLLERR;
+ pfd.revents = 0;
+
+ total_packets = NUM_PACKETS;
+ create_payload(packet, &packet_len);
+
+ while (total_packets > 0) {
+ void *next = get_next_frame(ring, frame_num);
+
+ while (__tx_kernel_ready(next, ring->version) &&
+ total_packets > 0) {
+ ppd.raw = next;
+
+ switch (ring->version) {
+ case TPACKET_V1:
+ ppd.v1->tp_h.tp_snaplen = packet_len;
+ ppd.v1->tp_h.tp_len = packet_len;
+
+ memcpy((uint8_t *) ppd.raw + TPACKET_HDRLEN -
+ sizeof(struct sockaddr_ll), packet,
+ packet_len);
+ total_bytes += ppd.v1->tp_h.tp_snaplen;
+ break;
+
+ case TPACKET_V2:
+ ppd.v2->tp_h.tp_snaplen = packet_len;
+ ppd.v2->tp_h.tp_len = packet_len;
+
+ memcpy((uint8_t *) ppd.raw + TPACKET2_HDRLEN -
+ sizeof(struct sockaddr_ll), packet,
+ packet_len);
+ total_bytes += ppd.v2->tp_h.tp_snaplen;
+ break;
+ case TPACKET_V3: {
+ struct tpacket3_hdr *tx = next;
+
+ tx->tp_snaplen = packet_len;
+ tx->tp_len = packet_len;
+ tx->tp_next_offset = 0;
+
+ memcpy((uint8_t *)tx + TPACKET3_HDRLEN -
+ sizeof(struct sockaddr_ll), packet,
+ packet_len);
+ total_bytes += tx->tp_snaplen;
+ break;
+ }
+ }
+
+ status_bar_update();
+ total_packets--;
+
+ __tx_user_ready(next, ring->version);
+
+ frame_num = (frame_num + 1) % nframes;
+ }
+
+ poll(&pfd, 1, 1);
+ }
+
+ bug_on(total_packets != 0);
+
+ ret = sendto(sock, NULL, 0, 0, NULL, 0);
+ if (ret == -1) {
+ perror("sendto");
+ exit(1);
+ }
+
+ while ((ret = recvfrom(rcv_sock, packet, sizeof(packet),
+ 0, NULL, NULL)) > 0 &&
+ total_packets < NUM_PACKETS) {
+ got += ret;
+ test_payload(packet, ret);
+
+ status_bar_update();
+ total_packets++;
+ }
+
+ close(rcv_sock);
+
+ if (total_packets != NUM_PACKETS) {
+ fprintf(stderr, "walk_v%d_rx: received %u out of %u pkts\n",
+ ring->version, total_packets, NUM_PACKETS);
+ exit(1);
+ }
+
+ fprintf(stderr, " %u pkts (%u bytes)", NUM_PACKETS, got);
+}
+
+static void walk_v1_v2(int sock, struct ring *ring)
+{
+ if (ring->type == PACKET_RX_RING)
+ walk_v1_v2_rx(sock, ring);
+ else
+ walk_tx(sock, ring);
+}
+
+static uint64_t __v3_prev_block_seq_num = 0;
+
+void __v3_test_block_seq_num(struct block_desc *pbd)
+{
+ if (__v3_prev_block_seq_num + 1 != pbd->h1.seq_num) {
+ fprintf(stderr, "\nprev_block_seq_num:%"PRIu64", expected "
+ "seq:%"PRIu64" != actual seq:%"PRIu64"\n",
+ __v3_prev_block_seq_num, __v3_prev_block_seq_num + 1,
+ (uint64_t) pbd->h1.seq_num);
+ exit(1);
+ }
+
+ __v3_prev_block_seq_num = pbd->h1.seq_num;
+}
+
+static void __v3_test_block_len(struct block_desc *pbd, uint32_t bytes, int block_num)
+{
+ if (pbd->h1.num_pkts && bytes != pbd->h1.blk_len) {
+ fprintf(stderr, "\nblock:%u with %upackets, expected "
+ "len:%u != actual len:%u\n", block_num,
+ pbd->h1.num_pkts, bytes, pbd->h1.blk_len);
+ exit(1);
+ }
+}
+
+static void __v3_test_block_header(struct block_desc *pbd, const int block_num)
+{
+ if ((pbd->h1.block_status & TP_STATUS_USER) == 0) {
+ fprintf(stderr, "\nblock %u: not in TP_STATUS_USER\n", block_num);
+ exit(1);
+ }
+
+ __v3_test_block_seq_num(pbd);
+}
+
+static void __v3_walk_block(struct block_desc *pbd, const int block_num)
+{
+ int num_pkts = pbd->h1.num_pkts, i;
+ unsigned long bytes = 0, bytes_with_padding = ALIGN_8(sizeof(*pbd));
+ struct tpacket3_hdr *ppd;
+
+ __v3_test_block_header(pbd, block_num);
+
+ ppd = (struct tpacket3_hdr *) ((uint8_t *) pbd +
+ pbd->h1.offset_to_first_pkt);
+
+ for (i = 0; i < num_pkts; ++i) {
+ bytes += ppd->tp_snaplen;
+
+ if (ppd->tp_next_offset)
+ bytes_with_padding += ppd->tp_next_offset;
+ else
+ bytes_with_padding += ALIGN_8(ppd->tp_snaplen + ppd->tp_mac);
+
+ test_payload((uint8_t *) ppd + ppd->tp_mac, ppd->tp_snaplen);
+
+ status_bar_update();
+ total_packets++;
+
+ ppd = (struct tpacket3_hdr *) ((uint8_t *) ppd + ppd->tp_next_offset);
+ __sync_synchronize();
+ }
+
+ __v3_test_block_len(pbd, bytes_with_padding, block_num);
+ total_bytes += bytes;
+}
+
+void __v3_flush_block(struct block_desc *pbd)
+{
+ pbd->h1.block_status = TP_STATUS_KERNEL;
+ __sync_synchronize();
+}
+
+static void walk_v3_rx(int sock, struct ring *ring)
+{
+ unsigned int block_num = 0;
+ struct pollfd pfd;
+ struct block_desc *pbd;
+ int udp_sock[2];
+
+ bug_on(ring->type != PACKET_RX_RING);
+
+ pair_udp_open(udp_sock, PORT_BASE);
+
+ memset(&pfd, 0, sizeof(pfd));
+ pfd.fd = sock;
+ pfd.events = POLLIN | POLLERR;
+ pfd.revents = 0;
+
+ pair_udp_send(udp_sock, NUM_PACKETS);
+
+ while (total_packets < NUM_PACKETS * 2) {
+ pbd = (struct block_desc *) ring->rd[block_num].iov_base;
+
+ while ((pbd->h1.block_status & TP_STATUS_USER) == 0)
+ poll(&pfd, 1, 1);
+
+ __v3_walk_block(pbd, block_num);
+ __v3_flush_block(pbd);
+
+ block_num = (block_num + 1) % ring->rd_num;
+ }
+
+ pair_udp_close(udp_sock);
+
+ if (total_packets != 2 * NUM_PACKETS) {
+ fprintf(stderr, "walk_v3_rx: received %u out of %u pkts\n",
+ total_packets, NUM_PACKETS);
+ exit(1);
+ }
+
+ fprintf(stderr, " %u pkts (%u bytes)", NUM_PACKETS, total_bytes >> 1);
+}
+
+static void walk_v3(int sock, struct ring *ring)
+{
+ if (ring->type == PACKET_RX_RING)
+ walk_v3_rx(sock, ring);
+ else
+ walk_tx(sock, ring);
+}
+
+static void __v1_v2_fill(struct ring *ring, unsigned int blocks)
+{
+ ring->req.tp_block_size = getpagesize() << 2;
+ ring->req.tp_frame_size = TPACKET_ALIGNMENT << 7;
+ ring->req.tp_block_nr = blocks;
+
+ ring->req.tp_frame_nr = ring->req.tp_block_size /
+ ring->req.tp_frame_size *
+ ring->req.tp_block_nr;
+
+ ring->mm_len = ring->req.tp_block_size * ring->req.tp_block_nr;
+ ring->walk = walk_v1_v2;
+ ring->rd_num = ring->req.tp_frame_nr;
+ ring->flen = ring->req.tp_frame_size;
+}
+
+static void __v3_fill(struct ring *ring, unsigned int blocks, int type)
+{
+ if (type == PACKET_RX_RING) {
+ ring->req3.tp_retire_blk_tov = 64;
+ ring->req3.tp_sizeof_priv = 0;
+ ring->req3.tp_feature_req_word = TP_FT_REQ_FILL_RXHASH;
+ }
+ ring->req3.tp_block_size = getpagesize() << 2;
+ ring->req3.tp_frame_size = TPACKET_ALIGNMENT << 7;
+ ring->req3.tp_block_nr = blocks;
+
+ ring->req3.tp_frame_nr = ring->req3.tp_block_size /
+ ring->req3.tp_frame_size *
+ ring->req3.tp_block_nr;
+
+ ring->mm_len = ring->req3.tp_block_size * ring->req3.tp_block_nr;
+ ring->walk = walk_v3;
+ ring->rd_num = ring->req3.tp_block_nr;
+ ring->flen = ring->req3.tp_block_size;
+}
+
+static void setup_ring(int sock, struct ring *ring, int version, int type)
+{
+ int ret = 0;
+ unsigned int blocks = 256;
+
+ ring->type = type;
+ ring->version = version;
+
+ switch (version) {
+ case TPACKET_V1:
+ case TPACKET_V2:
+ if (type == PACKET_TX_RING)
+ __v1_v2_set_packet_loss_discard(sock);
+ __v1_v2_fill(ring, blocks);
+ ret = setsockopt(sock, SOL_PACKET, type, &ring->req,
+ sizeof(ring->req));
+ break;
+
+ case TPACKET_V3:
+ __v3_fill(ring, blocks, type);
+ ret = setsockopt(sock, SOL_PACKET, type, &ring->req3,
+ sizeof(ring->req3));
+ break;
+ }
+
+ if (ret == -1) {
+ perror("setsockopt");
+ exit(1);
+ }
+
+ ring->rd_len = ring->rd_num * sizeof(*ring->rd);
+ ring->rd = malloc(ring->rd_len);
+ if (ring->rd == NULL) {
+ perror("malloc");
+ exit(1);
+ }
+
+ total_packets = 0;
+ total_bytes = 0;
+}
+
+static void mmap_ring(int sock, struct ring *ring)
+{
+ int i;
+
+ ring->mm_space = mmap(0, ring->mm_len, PROT_READ | PROT_WRITE,
+ MAP_SHARED | MAP_LOCKED | MAP_POPULATE, sock, 0);
+ if (ring->mm_space == MAP_FAILED) {
+ perror("mmap");
+ exit(1);
+ }
+
+ memset(ring->rd, 0, ring->rd_len);
+ for (i = 0; i < ring->rd_num; ++i) {
+ ring->rd[i].iov_base = ring->mm_space + (i * ring->flen);
+ ring->rd[i].iov_len = ring->flen;
+ }
+}
+
+static void bind_ring(int sock, struct ring *ring)
+{
+ int ret;
+
+ pair_udp_setfilter(sock);
+
+ ring->ll.sll_family = PF_PACKET;
+ ring->ll.sll_protocol = htons(ETH_P_ALL);
+ ring->ll.sll_ifindex = if_nametoindex("lo");
+ ring->ll.sll_hatype = 0;
+ ring->ll.sll_pkttype = 0;
+ ring->ll.sll_halen = 0;
+
+ ret = bind(sock, (struct sockaddr *) &ring->ll, sizeof(ring->ll));
+ if (ret == -1) {
+ perror("bind");
+ exit(1);
+ }
+}
+
+static void walk_ring(int sock, struct ring *ring)
+{
+ ring->walk(sock, ring);
+}
+
+static void unmap_ring(int sock, struct ring *ring)
+{
+ munmap(ring->mm_space, ring->mm_len);
+ free(ring->rd);
+}
+
+static int test_kernel_bit_width(void)
+{
+ char in[512], *ptr;
+ int num = 0, fd;
+ ssize_t ret;
+
+ fd = open("/proc/kallsyms", O_RDONLY);
+ if (fd == -1) {
+ perror("open");
+ exit(1);
+ }
+
+ ret = read(fd, in, sizeof(in));
+ if (ret <= 0) {
+ perror("read");
+ exit(1);
+ }
+
+ close(fd);
+
+ ptr = in;
+ while(!isspace(*ptr)) {
+ num++;
+ ptr++;
+ }
+
+ return num * 4;
+}
+
+static int test_user_bit_width(void)
+{
+ return __WORDSIZE;
+}
+
+static const char *tpacket_str[] = {
+ [TPACKET_V1] = "TPACKET_V1",
+ [TPACKET_V2] = "TPACKET_V2",
+ [TPACKET_V3] = "TPACKET_V3",
+};
+
+static const char *type_str[] = {
+ [PACKET_RX_RING] = "PACKET_RX_RING",
+ [PACKET_TX_RING] = "PACKET_TX_RING",
+};
+
+static int test_tpacket(int version, int type)
+{
+ int sock;
+ struct ring ring;
+
+ fprintf(stderr, "test: %s with %s ", tpacket_str[version],
+ type_str[type]);
+ fflush(stderr);
+
+ if (version == TPACKET_V1 &&
+ test_kernel_bit_width() != test_user_bit_width()) {
+ fprintf(stderr, "test: skip %s %s since user and kernel "
+ "space have different bit width\n",
+ tpacket_str[version], type_str[type]);
+ return KSFT_SKIP;
+ }
+
+ sock = pfsocket(version);
+ memset(&ring, 0, sizeof(ring));
+ setup_ring(sock, &ring, version, type);
+ mmap_ring(sock, &ring);
+ bind_ring(sock, &ring);
+ walk_ring(sock, &ring);
+ unmap_ring(sock, &ring);
+ close(sock);
+
+ fprintf(stderr, "\n");
+ return 0;
+}
+
+int main(void)
+{
+ int ret = 0;
+
+ ret |= test_tpacket(TPACKET_V1, PACKET_RX_RING);
+ ret |= test_tpacket(TPACKET_V1, PACKET_TX_RING);
+
+ ret |= test_tpacket(TPACKET_V2, PACKET_RX_RING);
+ ret |= test_tpacket(TPACKET_V2, PACKET_TX_RING);
+
+ ret |= test_tpacket(TPACKET_V3, PACKET_RX_RING);
+ ret |= test_tpacket(TPACKET_V3, PACKET_TX_RING);
+
+ if (ret)
+ return 1;
+
+ printf("OK. All tests passed\n");
+ return 0;
+}
diff --git a/tools/testing/selftests/net/reuseaddr_conflict.c b/tools/testing/selftests/net/reuseaddr_conflict.c
new file mode 100644
index 000000000..7c5b12664
--- /dev/null
+++ b/tools/testing/selftests/net/reuseaddr_conflict.c
@@ -0,0 +1,114 @@
+/*
+ * Test for the regression introduced by
+ *
+ * b9470c27607b ("inet: kill smallest_size and smallest_port")
+ *
+ * If we open an ipv4 socket on a port with reuseaddr we shouldn't reset the tb
+ * when we open the ipv6 conterpart, which is what was happening previously.
+ */
+#include <errno.h>
+#include <error.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#define PORT 9999
+
+int open_port(int ipv6, int any)
+{
+ int fd = -1;
+ int reuseaddr = 1;
+ int v6only = 1;
+ int addrlen;
+ int ret = -1;
+ struct sockaddr *addr;
+ int family = ipv6 ? AF_INET6 : AF_INET;
+
+ struct sockaddr_in6 addr6 = {
+ .sin6_family = AF_INET6,
+ .sin6_port = htons(PORT),
+ .sin6_addr = in6addr_any
+ };
+ struct sockaddr_in addr4 = {
+ .sin_family = AF_INET,
+ .sin_port = htons(PORT),
+ .sin_addr.s_addr = any ? htonl(INADDR_ANY) : inet_addr("127.0.0.1"),
+ };
+
+
+ if (ipv6) {
+ addr = (struct sockaddr*)&addr6;
+ addrlen = sizeof(addr6);
+ } else {
+ addr = (struct sockaddr*)&addr4;
+ addrlen = sizeof(addr4);
+ }
+
+ if ((fd = socket(family, SOCK_STREAM, IPPROTO_TCP)) < 0) {
+ perror("socket");
+ goto out;
+ }
+
+ if (ipv6 && setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, (void*)&v6only,
+ sizeof(v6only)) < 0) {
+ perror("setsockopt IPV6_V6ONLY");
+ goto out;
+ }
+
+ if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &reuseaddr,
+ sizeof(reuseaddr)) < 0) {
+ perror("setsockopt SO_REUSEADDR");
+ goto out;
+ }
+
+ if (bind(fd, addr, addrlen) < 0) {
+ perror("bind");
+ goto out;
+ }
+
+ if (any)
+ return fd;
+
+ if (listen(fd, 1) < 0) {
+ perror("listen");
+ goto out;
+ }
+ return fd;
+out:
+ close(fd);
+ return ret;
+}
+
+int main(void)
+{
+ int listenfd;
+ int fd1, fd2;
+
+ fprintf(stderr, "Opening 127.0.0.1:%d\n", PORT);
+ listenfd = open_port(0, 0);
+ if (listenfd < 0)
+ error(1, errno, "Couldn't open listen socket");
+ fprintf(stderr, "Opening INADDR_ANY:%d\n", PORT);
+ fd1 = open_port(0, 1);
+ if (fd1 >= 0)
+ error(1, 0, "Was allowed to create an ipv4 reuseport on a already bound non-reuseport socket");
+ fprintf(stderr, "Opening in6addr_any:%d\n", PORT);
+ fd1 = open_port(1, 1);
+ if (fd1 < 0)
+ error(1, errno, "Couldn't open ipv6 reuseport");
+ fprintf(stderr, "Opening INADDR_ANY:%d\n", PORT);
+ fd2 = open_port(0, 1);
+ if (fd2 >= 0)
+ error(1, 0, "Was allowed to create an ipv4 reuseport on a already bound non-reuseport socket");
+ close(fd1);
+ fprintf(stderr, "Opening INADDR_ANY:%d after closing ipv6 socket\n", PORT);
+ fd1 = open_port(0, 1);
+ if (fd1 >= 0)
+ error(1, 0, "Was allowed to create an ipv4 reuseport on an already bound non-reuseport socket with no ipv6");
+ fprintf(stderr, "Success");
+ return 0;
+}
diff --git a/tools/testing/selftests/net/reuseaddr_ports_exhausted.c b/tools/testing/selftests/net/reuseaddr_ports_exhausted.c
new file mode 100644
index 000000000..066efd30e
--- /dev/null
+++ b/tools/testing/selftests/net/reuseaddr_ports_exhausted.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Check if we can fully utilize 4-tuples for connect().
+ *
+ * Rules to bind sockets to the same port when all ephemeral ports are
+ * exhausted.
+ *
+ * 1. if there are TCP_LISTEN sockets on the port, fail to bind.
+ * 2. if there are sockets without SO_REUSEADDR, fail to bind.
+ * 3. if SO_REUSEADDR is disabled, fail to bind.
+ * 4. if SO_REUSEADDR is enabled and SO_REUSEPORT is disabled,
+ * succeed to bind.
+ * 5. if SO_REUSEADDR and SO_REUSEPORT are enabled and
+ * there is no socket having the both options and the same EUID,
+ * succeed to bind.
+ * 6. fail to bind.
+ *
+ * Author: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
+ */
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include "../kselftest_harness.h"
+
+struct reuse_opts {
+ int reuseaddr[2];
+ int reuseport[2];
+};
+
+struct reuse_opts unreusable_opts[12] = {
+ {{0, 0}, {0, 0}},
+ {{0, 0}, {0, 1}},
+ {{0, 0}, {1, 0}},
+ {{0, 0}, {1, 1}},
+ {{0, 1}, {0, 0}},
+ {{0, 1}, {0, 1}},
+ {{0, 1}, {1, 0}},
+ {{0, 1}, {1, 1}},
+ {{1, 0}, {0, 0}},
+ {{1, 0}, {0, 1}},
+ {{1, 0}, {1, 0}},
+ {{1, 0}, {1, 1}},
+};
+
+struct reuse_opts reusable_opts[4] = {
+ {{1, 1}, {0, 0}},
+ {{1, 1}, {0, 1}},
+ {{1, 1}, {1, 0}},
+ {{1, 1}, {1, 1}},
+};
+
+int bind_port(struct __test_metadata *_metadata, int reuseaddr, int reuseport)
+{
+ struct sockaddr_in local_addr;
+ int len = sizeof(local_addr);
+ int fd, ret;
+
+ fd = socket(AF_INET, SOCK_STREAM, 0);
+ ASSERT_NE(-1, fd) TH_LOG("failed to open socket.");
+
+ ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &reuseaddr, sizeof(int));
+ ASSERT_EQ(0, ret) TH_LOG("failed to setsockopt: SO_REUSEADDR.");
+
+ ret = setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &reuseport, sizeof(int));
+ ASSERT_EQ(0, ret) TH_LOG("failed to setsockopt: SO_REUSEPORT.");
+
+ local_addr.sin_family = AF_INET;
+ local_addr.sin_addr.s_addr = inet_addr("127.0.0.1");
+ local_addr.sin_port = 0;
+
+ if (bind(fd, (struct sockaddr *)&local_addr, len) == -1) {
+ close(fd);
+ return -1;
+ }
+
+ return fd;
+}
+
+TEST(reuseaddr_ports_exhausted_unreusable)
+{
+ struct reuse_opts *opts;
+ int i, j, fd[2];
+
+ for (i = 0; i < 12; i++) {
+ opts = &unreusable_opts[i];
+
+ for (j = 0; j < 2; j++)
+ fd[j] = bind_port(_metadata, opts->reuseaddr[j], opts->reuseport[j]);
+
+ ASSERT_NE(-1, fd[0]) TH_LOG("failed to bind.");
+ EXPECT_EQ(-1, fd[1]) TH_LOG("should fail to bind.");
+
+ for (j = 0; j < 2; j++)
+ if (fd[j] != -1)
+ close(fd[j]);
+ }
+}
+
+TEST(reuseaddr_ports_exhausted_reusable_same_euid)
+{
+ struct reuse_opts *opts;
+ int i, j, fd[2];
+
+ for (i = 0; i < 4; i++) {
+ opts = &reusable_opts[i];
+
+ for (j = 0; j < 2; j++)
+ fd[j] = bind_port(_metadata, opts->reuseaddr[j], opts->reuseport[j]);
+
+ ASSERT_NE(-1, fd[0]) TH_LOG("failed to bind.");
+
+ if (opts->reuseport[0] && opts->reuseport[1]) {
+ EXPECT_EQ(-1, fd[1]) TH_LOG("should fail to bind because both sockets succeed to be listened.");
+ } else {
+ EXPECT_NE(-1, fd[1]) TH_LOG("should succeed to bind to connect to different destinations.");
+ }
+
+ for (j = 0; j < 2; j++)
+ if (fd[j] != -1)
+ close(fd[j]);
+ }
+}
+
+TEST(reuseaddr_ports_exhausted_reusable_different_euid)
+{
+ struct reuse_opts *opts;
+ int i, j, ret, fd[2];
+ uid_t euid[2] = {10, 20};
+
+ for (i = 0; i < 4; i++) {
+ opts = &reusable_opts[i];
+
+ for (j = 0; j < 2; j++) {
+ ret = seteuid(euid[j]);
+ ASSERT_EQ(0, ret) TH_LOG("failed to seteuid: %d.", euid[j]);
+
+ fd[j] = bind_port(_metadata, opts->reuseaddr[j], opts->reuseport[j]);
+
+ ret = seteuid(0);
+ ASSERT_EQ(0, ret) TH_LOG("failed to seteuid: 0.");
+ }
+
+ ASSERT_NE(-1, fd[0]) TH_LOG("failed to bind.");
+ EXPECT_NE(-1, fd[1]) TH_LOG("should succeed to bind because one socket can be bound in each euid.");
+
+ if (fd[1] != -1) {
+ ret = listen(fd[0], 5);
+ ASSERT_EQ(0, ret) TH_LOG("failed to listen.");
+
+ ret = listen(fd[1], 5);
+ EXPECT_EQ(-1, ret) TH_LOG("should fail to listen because only one uid reserves the port in TCP_LISTEN.");
+ }
+
+ for (j = 0; j < 2; j++)
+ if (fd[j] != -1)
+ close(fd[j]);
+ }
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/reuseaddr_ports_exhausted.sh b/tools/testing/selftests/net/reuseaddr_ports_exhausted.sh
new file mode 100755
index 000000000..20e3a2913
--- /dev/null
+++ b/tools/testing/selftests/net/reuseaddr_ports_exhausted.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run tests when all ephemeral ports are exhausted.
+#
+# Author: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
+
+set +x
+set -e
+
+readonly NETNS="ns-$(mktemp -u XXXXXX)"
+
+setup() {
+ ip netns add "${NETNS}"
+ ip -netns "${NETNS}" link set lo up
+ ip netns exec "${NETNS}" \
+ sysctl -w net.ipv4.ip_local_port_range="32768 32768" \
+ > /dev/null 2>&1
+ ip netns exec "${NETNS}" \
+ sysctl -w net.ipv4.ip_autobind_reuse=1 > /dev/null 2>&1
+}
+
+cleanup() {
+ ip netns del "${NETNS}"
+}
+
+trap cleanup EXIT
+setup
+
+do_test() {
+ ip netns exec "${NETNS}" ./reuseaddr_ports_exhausted
+}
+
+do_test
+echo "tests done"
diff --git a/tools/testing/selftests/net/reuseport_addr_any.c b/tools/testing/selftests/net/reuseport_addr_any.c
new file mode 100644
index 000000000..b8475cb29
--- /dev/null
+++ b/tools/testing/selftests/net/reuseport_addr_any.c
@@ -0,0 +1,278 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* Test that sockets listening on a specific address are preferred
+ * over sockets listening on addr_any.
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <linux/dccp.h>
+#include <linux/in.h>
+#include <linux/unistd.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/epoll.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#ifndef SOL_DCCP
+#define SOL_DCCP 269
+#endif
+
+static const char *IP4_ADDR = "127.0.0.1";
+static const char *IP6_ADDR = "::1";
+static const char *IP4_MAPPED6 = "::ffff:127.0.0.1";
+
+static const int PORT = 8888;
+
+static void build_rcv_fd(int family, int proto, int *rcv_fds, int count,
+ const char *addr_str)
+{
+ struct sockaddr_in addr4 = {0};
+ struct sockaddr_in6 addr6 = {0};
+ struct sockaddr *addr;
+ int opt, i, sz;
+
+ memset(&addr, 0, sizeof(addr));
+
+ switch (family) {
+ case AF_INET:
+ addr4.sin_family = family;
+ if (!addr_str)
+ addr4.sin_addr.s_addr = htonl(INADDR_ANY);
+ else if (!inet_pton(family, addr_str, &addr4.sin_addr.s_addr))
+ error(1, errno, "inet_pton failed: %s", addr_str);
+ addr4.sin_port = htons(PORT);
+ sz = sizeof(addr4);
+ addr = (struct sockaddr *)&addr4;
+ break;
+ case AF_INET6:
+ addr6.sin6_family = AF_INET6;
+ if (!addr_str)
+ addr6.sin6_addr = in6addr_any;
+ else if (!inet_pton(family, addr_str, &addr6.sin6_addr))
+ error(1, errno, "inet_pton failed: %s", addr_str);
+ addr6.sin6_port = htons(PORT);
+ sz = sizeof(addr6);
+ addr = (struct sockaddr *)&addr6;
+ break;
+ default:
+ error(1, 0, "Unsupported family %d", family);
+ /* clang does not recognize error() above as terminating
+ * the program, so it complains that saddr, sz are
+ * not initialized when this code path is taken. Silence it.
+ */
+ return;
+ }
+
+ for (i = 0; i < count; ++i) {
+ rcv_fds[i] = socket(family, proto, 0);
+ if (rcv_fds[i] < 0)
+ error(1, errno, "failed to create receive socket");
+
+ opt = 1;
+ if (setsockopt(rcv_fds[i], SOL_SOCKET, SO_REUSEPORT, &opt,
+ sizeof(opt)))
+ error(1, errno, "failed to set SO_REUSEPORT");
+
+ if (bind(rcv_fds[i], addr, sz))
+ error(1, errno, "failed to bind receive socket");
+
+ if (proto == SOCK_STREAM && listen(rcv_fds[i], 10))
+ error(1, errno, "tcp: failed to listen on receive port");
+ else if (proto == SOCK_DCCP) {
+ if (setsockopt(rcv_fds[i], SOL_DCCP,
+ DCCP_SOCKOPT_SERVICE,
+ &(int) {htonl(42)}, sizeof(int)))
+ error(1, errno, "failed to setsockopt");
+
+ if (listen(rcv_fds[i], 10))
+ error(1, errno, "dccp: failed to listen on receive port");
+ }
+ }
+}
+
+static int connect_and_send(int family, int proto)
+{
+ struct sockaddr_in saddr4 = {0};
+ struct sockaddr_in daddr4 = {0};
+ struct sockaddr_in6 saddr6 = {0};
+ struct sockaddr_in6 daddr6 = {0};
+ struct sockaddr *saddr, *daddr;
+ int fd, sz;
+
+ switch (family) {
+ case AF_INET:
+ saddr4.sin_family = AF_INET;
+ saddr4.sin_addr.s_addr = htonl(INADDR_ANY);
+ saddr4.sin_port = 0;
+
+ daddr4.sin_family = AF_INET;
+ if (!inet_pton(family, IP4_ADDR, &daddr4.sin_addr.s_addr))
+ error(1, errno, "inet_pton failed: %s", IP4_ADDR);
+ daddr4.sin_port = htons(PORT);
+
+ sz = sizeof(saddr4);
+ saddr = (struct sockaddr *)&saddr4;
+ daddr = (struct sockaddr *)&daddr4;
+ break;
+ case AF_INET6:
+ saddr6.sin6_family = AF_INET6;
+ saddr6.sin6_addr = in6addr_any;
+
+ daddr6.sin6_family = AF_INET6;
+ if (!inet_pton(family, IP6_ADDR, &daddr6.sin6_addr))
+ error(1, errno, "inet_pton failed: %s", IP6_ADDR);
+ daddr6.sin6_port = htons(PORT);
+
+ sz = sizeof(saddr6);
+ saddr = (struct sockaddr *)&saddr6;
+ daddr = (struct sockaddr *)&daddr6;
+ break;
+ default:
+ error(1, 0, "Unsupported family %d", family);
+ /* clang does not recognize error() above as terminating
+ * the program, so it complains that saddr, daddr, sz are
+ * not initialized when this code path is taken. Silence it.
+ */
+ return -1;
+ }
+
+ fd = socket(family, proto, 0);
+ if (fd < 0)
+ error(1, errno, "failed to create send socket");
+
+ if (proto == SOCK_DCCP &&
+ setsockopt(fd, SOL_DCCP, DCCP_SOCKOPT_SERVICE,
+ &(int){htonl(42)}, sizeof(int)))
+ error(1, errno, "failed to setsockopt");
+
+ if (bind(fd, saddr, sz))
+ error(1, errno, "failed to bind send socket");
+
+ if (connect(fd, daddr, sz))
+ error(1, errno, "failed to connect send socket");
+
+ if (send(fd, "a", 1, 0) < 0)
+ error(1, errno, "failed to send message");
+
+ return fd;
+}
+
+static int receive_once(int epfd, int proto)
+{
+ struct epoll_event ev;
+ int i, fd;
+ char buf[8];
+
+ i = epoll_wait(epfd, &ev, 1, 3);
+ if (i < 0)
+ error(1, errno, "epoll_wait failed");
+
+ if (proto == SOCK_STREAM || proto == SOCK_DCCP) {
+ fd = accept(ev.data.fd, NULL, NULL);
+ if (fd < 0)
+ error(1, errno, "failed to accept");
+ i = recv(fd, buf, sizeof(buf), 0);
+ close(fd);
+ } else {
+ i = recv(ev.data.fd, buf, sizeof(buf), 0);
+ }
+
+ if (i < 0)
+ error(1, errno, "failed to recv");
+
+ return ev.data.fd;
+}
+
+static void test(int *rcv_fds, int count, int family, int proto, int fd)
+{
+ struct epoll_event ev;
+ int epfd, i, send_fd, recv_fd;
+
+ epfd = epoll_create(1);
+ if (epfd < 0)
+ error(1, errno, "failed to create epoll");
+
+ ev.events = EPOLLIN;
+ for (i = 0; i < count; ++i) {
+ ev.data.fd = rcv_fds[i];
+ if (epoll_ctl(epfd, EPOLL_CTL_ADD, rcv_fds[i], &ev))
+ error(1, errno, "failed to register sock epoll");
+ }
+
+ send_fd = connect_and_send(family, proto);
+
+ recv_fd = receive_once(epfd, proto);
+ if (recv_fd != fd)
+ error(1, 0, "received on an unexpected socket");
+
+ close(send_fd);
+ close(epfd);
+}
+
+
+static void run_one_test(int fam_send, int fam_rcv, int proto,
+ const char *addr_str)
+{
+ /* Below we test that a socket listening on a specific address
+ * is always selected in preference over a socket listening
+ * on addr_any. Bugs where this is not the case often result
+ * in sockets created first or last to get picked. So below
+ * we make sure that there are always addr_any sockets created
+ * before and after a specific socket is created.
+ */
+ int rcv_fds[10], i;
+
+ build_rcv_fd(AF_INET, proto, rcv_fds, 2, NULL);
+ build_rcv_fd(AF_INET6, proto, rcv_fds + 2, 2, NULL);
+ build_rcv_fd(fam_rcv, proto, rcv_fds + 4, 1, addr_str);
+ build_rcv_fd(AF_INET, proto, rcv_fds + 5, 2, NULL);
+ build_rcv_fd(AF_INET6, proto, rcv_fds + 7, 2, NULL);
+ test(rcv_fds, 9, fam_send, proto, rcv_fds[4]);
+ for (i = 0; i < 9; ++i)
+ close(rcv_fds[i]);
+ fprintf(stderr, "pass\n");
+}
+
+static void test_proto(int proto, const char *proto_str)
+{
+ if (proto == SOCK_DCCP) {
+ int test_fd;
+
+ test_fd = socket(AF_INET, proto, 0);
+ if (test_fd < 0) {
+ if (errno == ESOCKTNOSUPPORT) {
+ fprintf(stderr, "DCCP not supported: skipping DCCP tests\n");
+ return;
+ } else
+ error(1, errno, "failed to create a DCCP socket");
+ }
+ close(test_fd);
+ }
+
+ fprintf(stderr, "%s IPv4 ... ", proto_str);
+ run_one_test(AF_INET, AF_INET, proto, IP4_ADDR);
+
+ fprintf(stderr, "%s IPv6 ... ", proto_str);
+ run_one_test(AF_INET6, AF_INET6, proto, IP6_ADDR);
+
+ fprintf(stderr, "%s IPv4 mapped to IPv6 ... ", proto_str);
+ run_one_test(AF_INET, AF_INET6, proto, IP4_MAPPED6);
+}
+
+int main(void)
+{
+ test_proto(SOCK_DGRAM, "UDP");
+ test_proto(SOCK_STREAM, "TCP");
+ test_proto(SOCK_DCCP, "DCCP");
+
+ fprintf(stderr, "SUCCESS\n");
+ return 0;
+}
diff --git a/tools/testing/selftests/net/reuseport_addr_any.sh b/tools/testing/selftests/net/reuseport_addr_any.sh
new file mode 100755
index 000000000..104592f62
--- /dev/null
+++ b/tools/testing/selftests/net/reuseport_addr_any.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+./in_netns.sh ./reuseport_addr_any
diff --git a/tools/testing/selftests/net/reuseport_bpf.c b/tools/testing/selftests/net/reuseport_bpf.c
new file mode 100644
index 000000000..b0cc082fb
--- /dev/null
+++ b/tools/testing/selftests/net/reuseport_bpf.c
@@ -0,0 +1,641 @@
+/*
+ * Test functionality of BPF filters for SO_REUSEPORT. The tests below will use
+ * a BPF program (both classic and extended) to read the first word from an
+ * incoming packet (expected to be in network byte-order), calculate a modulus
+ * of that number, and then dispatch the packet to the Nth socket using the
+ * result. These tests are run for each supported address family and protocol.
+ * Additionally, a few edge cases in the implementation are tested.
+ */
+
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <linux/bpf.h>
+#include <linux/filter.h>
+#include <linux/unistd.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/epoll.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/resource.h>
+#include <unistd.h>
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+#endif
+
+struct test_params {
+ int recv_family;
+ int send_family;
+ int protocol;
+ size_t recv_socks;
+ uint16_t recv_port;
+ uint16_t send_port_min;
+};
+
+static size_t sockaddr_size(void)
+{
+ return sizeof(struct sockaddr_storage);
+}
+
+static struct sockaddr *new_any_sockaddr(int family, uint16_t port)
+{
+ struct sockaddr_storage *addr;
+ struct sockaddr_in *addr4;
+ struct sockaddr_in6 *addr6;
+
+ addr = malloc(sizeof(struct sockaddr_storage));
+ memset(addr, 0, sizeof(struct sockaddr_storage));
+
+ switch (family) {
+ case AF_INET:
+ addr4 = (struct sockaddr_in *)addr;
+ addr4->sin_family = AF_INET;
+ addr4->sin_addr.s_addr = htonl(INADDR_ANY);
+ addr4->sin_port = htons(port);
+ break;
+ case AF_INET6:
+ addr6 = (struct sockaddr_in6 *)addr;
+ addr6->sin6_family = AF_INET6;
+ addr6->sin6_addr = in6addr_any;
+ addr6->sin6_port = htons(port);
+ break;
+ default:
+ error(1, 0, "Unsupported family %d", family);
+ }
+ return (struct sockaddr *)addr;
+}
+
+static struct sockaddr *new_loopback_sockaddr(int family, uint16_t port)
+{
+ struct sockaddr *addr = new_any_sockaddr(family, port);
+ struct sockaddr_in *addr4;
+ struct sockaddr_in6 *addr6;
+
+ switch (family) {
+ case AF_INET:
+ addr4 = (struct sockaddr_in *)addr;
+ addr4->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+ break;
+ case AF_INET6:
+ addr6 = (struct sockaddr_in6 *)addr;
+ addr6->sin6_addr = in6addr_loopback;
+ break;
+ default:
+ error(1, 0, "Unsupported family %d", family);
+ }
+ return addr;
+}
+
+static void attach_ebpf(int fd, uint16_t mod)
+{
+ static char bpf_log_buf[65536];
+ static const char bpf_license[] = "GPL";
+
+ int bpf_fd;
+ const struct bpf_insn prog[] = {
+ /* BPF_MOV64_REG(BPF_REG_6, BPF_REG_1) */
+ { BPF_ALU64 | BPF_MOV | BPF_X, BPF_REG_6, BPF_REG_1, 0, 0 },
+ /* BPF_LD_ABS(BPF_W, 0) R0 = (uint32_t)skb[0] */
+ { BPF_LD | BPF_ABS | BPF_W, 0, 0, 0, 0 },
+ /* BPF_ALU64_IMM(BPF_MOD, BPF_REG_0, mod) */
+ { BPF_ALU64 | BPF_MOD | BPF_K, BPF_REG_0, 0, 0, mod },
+ /* BPF_EXIT_INSN() */
+ { BPF_JMP | BPF_EXIT, 0, 0, 0, 0 }
+ };
+ union bpf_attr attr;
+
+ memset(&attr, 0, sizeof(attr));
+ attr.prog_type = BPF_PROG_TYPE_SOCKET_FILTER;
+ attr.insn_cnt = ARRAY_SIZE(prog);
+ attr.insns = (unsigned long) &prog;
+ attr.license = (unsigned long) &bpf_license;
+ attr.log_buf = (unsigned long) &bpf_log_buf;
+ attr.log_size = sizeof(bpf_log_buf);
+ attr.log_level = 1;
+ attr.kern_version = 0;
+
+ bpf_fd = syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr));
+ if (bpf_fd < 0)
+ error(1, errno, "ebpf error. log:\n%s\n", bpf_log_buf);
+
+ if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_REUSEPORT_EBPF, &bpf_fd,
+ sizeof(bpf_fd)))
+ error(1, errno, "failed to set SO_ATTACH_REUSEPORT_EBPF");
+
+ close(bpf_fd);
+}
+
+static void attach_cbpf(int fd, uint16_t mod)
+{
+ struct sock_filter code[] = {
+ /* A = (uint32_t)skb[0] */
+ { BPF_LD | BPF_W | BPF_ABS, 0, 0, 0 },
+ /* A = A % mod */
+ { BPF_ALU | BPF_MOD, 0, 0, mod },
+ /* return A */
+ { BPF_RET | BPF_A, 0, 0, 0 },
+ };
+ struct sock_fprog p = {
+ .len = ARRAY_SIZE(code),
+ .filter = code,
+ };
+
+ if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_REUSEPORT_CBPF, &p, sizeof(p)))
+ error(1, errno, "failed to set SO_ATTACH_REUSEPORT_CBPF");
+}
+
+static void build_recv_group(const struct test_params p, int fd[], uint16_t mod,
+ void (*attach_bpf)(int, uint16_t))
+{
+ struct sockaddr * const addr =
+ new_any_sockaddr(p.recv_family, p.recv_port);
+ int i, opt;
+
+ for (i = 0; i < p.recv_socks; ++i) {
+ fd[i] = socket(p.recv_family, p.protocol, 0);
+ if (fd[i] < 0)
+ error(1, errno, "failed to create recv %d", i);
+
+ opt = 1;
+ if (setsockopt(fd[i], SOL_SOCKET, SO_REUSEPORT, &opt,
+ sizeof(opt)))
+ error(1, errno, "failed to set SO_REUSEPORT on %d", i);
+
+ if (i == 0)
+ attach_bpf(fd[i], mod);
+
+ if (bind(fd[i], addr, sockaddr_size()))
+ error(1, errno, "failed to bind recv socket %d", i);
+
+ if (p.protocol == SOCK_STREAM) {
+ opt = 4;
+ if (setsockopt(fd[i], SOL_TCP, TCP_FASTOPEN, &opt,
+ sizeof(opt)))
+ error(1, errno,
+ "failed to set TCP_FASTOPEN on %d", i);
+ if (listen(fd[i], p.recv_socks * 10))
+ error(1, errno, "failed to listen on socket");
+ }
+ }
+ free(addr);
+}
+
+static void send_from(struct test_params p, uint16_t sport, char *buf,
+ size_t len)
+{
+ struct sockaddr * const saddr = new_any_sockaddr(p.send_family, sport);
+ struct sockaddr * const daddr =
+ new_loopback_sockaddr(p.send_family, p.recv_port);
+ const int fd = socket(p.send_family, p.protocol, 0), one = 1;
+
+ if (fd < 0)
+ error(1, errno, "failed to create send socket");
+
+ if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)))
+ error(1, errno, "failed to set reuseaddr");
+
+ if (bind(fd, saddr, sockaddr_size()))
+ error(1, errno, "failed to bind send socket");
+
+ if (sendto(fd, buf, len, MSG_FASTOPEN, daddr, sockaddr_size()) < 0)
+ error(1, errno, "failed to send message");
+
+ close(fd);
+ free(saddr);
+ free(daddr);
+}
+
+static void test_recv_order(const struct test_params p, int fd[], int mod)
+{
+ char recv_buf[8], send_buf[8];
+ struct msghdr msg;
+ struct iovec recv_io = { recv_buf, 8 };
+ struct epoll_event ev;
+ int epfd, conn, i, sport, expected;
+ uint32_t data, ndata;
+
+ epfd = epoll_create(1);
+ if (epfd < 0)
+ error(1, errno, "failed to create epoll");
+ for (i = 0; i < p.recv_socks; ++i) {
+ ev.events = EPOLLIN;
+ ev.data.fd = fd[i];
+ if (epoll_ctl(epfd, EPOLL_CTL_ADD, fd[i], &ev))
+ error(1, errno, "failed to register sock %d epoll", i);
+ }
+
+ memset(&msg, 0, sizeof(msg));
+ msg.msg_iov = &recv_io;
+ msg.msg_iovlen = 1;
+
+ for (data = 0; data < p.recv_socks * 2; ++data) {
+ sport = p.send_port_min + data;
+ ndata = htonl(data);
+ memcpy(send_buf, &ndata, sizeof(ndata));
+ send_from(p, sport, send_buf, sizeof(ndata));
+
+ i = epoll_wait(epfd, &ev, 1, -1);
+ if (i < 0)
+ error(1, errno, "epoll wait failed");
+
+ if (p.protocol == SOCK_STREAM) {
+ conn = accept(ev.data.fd, NULL, NULL);
+ if (conn < 0)
+ error(1, errno, "error accepting");
+ i = recvmsg(conn, &msg, 0);
+ close(conn);
+ } else {
+ i = recvmsg(ev.data.fd, &msg, 0);
+ }
+ if (i < 0)
+ error(1, errno, "recvmsg error");
+ if (i != sizeof(ndata))
+ error(1, 0, "expected size %zd got %d",
+ sizeof(ndata), i);
+
+ for (i = 0; i < p.recv_socks; ++i)
+ if (ev.data.fd == fd[i])
+ break;
+ memcpy(&ndata, recv_buf, sizeof(ndata));
+ fprintf(stderr, "Socket %d: %d\n", i, ntohl(ndata));
+
+ expected = (sport % mod);
+ if (i != expected)
+ error(1, 0, "expected socket %d", expected);
+ }
+}
+
+static void test_reuseport_ebpf(struct test_params p)
+{
+ int i, fd[p.recv_socks];
+
+ fprintf(stderr, "Testing EBPF mod %zd...\n", p.recv_socks);
+ build_recv_group(p, fd, p.recv_socks, attach_ebpf);
+ test_recv_order(p, fd, p.recv_socks);
+
+ p.send_port_min += p.recv_socks * 2;
+ fprintf(stderr, "Reprograming, testing mod %zd...\n", p.recv_socks / 2);
+ attach_ebpf(fd[0], p.recv_socks / 2);
+ test_recv_order(p, fd, p.recv_socks / 2);
+
+ for (i = 0; i < p.recv_socks; ++i)
+ close(fd[i]);
+}
+
+static void test_reuseport_cbpf(struct test_params p)
+{
+ int i, fd[p.recv_socks];
+
+ fprintf(stderr, "Testing CBPF mod %zd...\n", p.recv_socks);
+ build_recv_group(p, fd, p.recv_socks, attach_cbpf);
+ test_recv_order(p, fd, p.recv_socks);
+
+ p.send_port_min += p.recv_socks * 2;
+ fprintf(stderr, "Reprograming, testing mod %zd...\n", p.recv_socks / 2);
+ attach_cbpf(fd[0], p.recv_socks / 2);
+ test_recv_order(p, fd, p.recv_socks / 2);
+
+ for (i = 0; i < p.recv_socks; ++i)
+ close(fd[i]);
+}
+
+static void test_extra_filter(const struct test_params p)
+{
+ struct sockaddr * const addr =
+ new_any_sockaddr(p.recv_family, p.recv_port);
+ int fd1, fd2, opt;
+
+ fprintf(stderr, "Testing too many filters...\n");
+ fd1 = socket(p.recv_family, p.protocol, 0);
+ if (fd1 < 0)
+ error(1, errno, "failed to create socket 1");
+ fd2 = socket(p.recv_family, p.protocol, 0);
+ if (fd2 < 0)
+ error(1, errno, "failed to create socket 2");
+
+ opt = 1;
+ if (setsockopt(fd1, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)))
+ error(1, errno, "failed to set SO_REUSEPORT on socket 1");
+ if (setsockopt(fd2, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)))
+ error(1, errno, "failed to set SO_REUSEPORT on socket 2");
+
+ attach_ebpf(fd1, 10);
+ attach_ebpf(fd2, 10);
+
+ if (bind(fd1, addr, sockaddr_size()))
+ error(1, errno, "failed to bind recv socket 1");
+
+ if (!bind(fd2, addr, sockaddr_size()) || errno != EADDRINUSE)
+ error(1, errno, "bind socket 2 should fail with EADDRINUSE");
+
+ free(addr);
+}
+
+static void test_filter_no_reuseport(const struct test_params p)
+{
+ struct sockaddr * const addr =
+ new_any_sockaddr(p.recv_family, p.recv_port);
+ const char bpf_license[] = "GPL";
+ struct bpf_insn ecode[] = {
+ { BPF_ALU64 | BPF_MOV | BPF_K, BPF_REG_0, 0, 0, 10 },
+ { BPF_JMP | BPF_EXIT, 0, 0, 0, 0 }
+ };
+ struct sock_filter ccode[] = {{ BPF_RET | BPF_A, 0, 0, 0 }};
+ union bpf_attr eprog;
+ struct sock_fprog cprog;
+ int fd, bpf_fd;
+
+ fprintf(stderr, "Testing filters on non-SO_REUSEPORT socket...\n");
+
+ memset(&eprog, 0, sizeof(eprog));
+ eprog.prog_type = BPF_PROG_TYPE_SOCKET_FILTER;
+ eprog.insn_cnt = ARRAY_SIZE(ecode);
+ eprog.insns = (unsigned long) &ecode;
+ eprog.license = (unsigned long) &bpf_license;
+ eprog.kern_version = 0;
+
+ memset(&cprog, 0, sizeof(cprog));
+ cprog.len = ARRAY_SIZE(ccode);
+ cprog.filter = ccode;
+
+
+ bpf_fd = syscall(__NR_bpf, BPF_PROG_LOAD, &eprog, sizeof(eprog));
+ if (bpf_fd < 0)
+ error(1, errno, "ebpf error");
+ fd = socket(p.recv_family, p.protocol, 0);
+ if (fd < 0)
+ error(1, errno, "failed to create socket 1");
+
+ if (bind(fd, addr, sockaddr_size()))
+ error(1, errno, "failed to bind recv socket 1");
+
+ errno = 0;
+ if (!setsockopt(fd, SOL_SOCKET, SO_ATTACH_REUSEPORT_EBPF, &bpf_fd,
+ sizeof(bpf_fd)) || errno != EINVAL)
+ error(1, errno, "setsockopt should have returned EINVAL");
+
+ errno = 0;
+ if (!setsockopt(fd, SOL_SOCKET, SO_ATTACH_REUSEPORT_CBPF, &cprog,
+ sizeof(cprog)) || errno != EINVAL)
+ error(1, errno, "setsockopt should have returned EINVAL");
+
+ free(addr);
+}
+
+static void test_filter_without_bind(void)
+{
+ int fd1, fd2, opt = 1;
+
+ fprintf(stderr, "Testing filter add without bind...\n");
+ fd1 = socket(AF_INET, SOCK_DGRAM, 0);
+ if (fd1 < 0)
+ error(1, errno, "failed to create socket 1");
+ fd2 = socket(AF_INET, SOCK_DGRAM, 0);
+ if (fd2 < 0)
+ error(1, errno, "failed to create socket 2");
+ if (setsockopt(fd1, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)))
+ error(1, errno, "failed to set SO_REUSEPORT on socket 1");
+ if (setsockopt(fd2, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)))
+ error(1, errno, "failed to set SO_REUSEPORT on socket 2");
+
+ attach_ebpf(fd1, 10);
+ attach_cbpf(fd2, 10);
+
+ close(fd1);
+ close(fd2);
+}
+
+void enable_fastopen(void)
+{
+ int fd = open("/proc/sys/net/ipv4/tcp_fastopen", 0);
+ int rw_mask = 3; /* bit 1: client side; bit-2 server side */
+ int val, size;
+ char buf[16];
+
+ if (fd < 0)
+ error(1, errno, "Unable to open tcp_fastopen sysctl");
+ if (read(fd, buf, sizeof(buf)) <= 0)
+ error(1, errno, "Unable to read tcp_fastopen sysctl");
+ val = atoi(buf);
+ close(fd);
+
+ if ((val & rw_mask) != rw_mask) {
+ fd = open("/proc/sys/net/ipv4/tcp_fastopen", O_RDWR);
+ if (fd < 0)
+ error(1, errno,
+ "Unable to open tcp_fastopen sysctl for writing");
+ val |= rw_mask;
+ size = snprintf(buf, 16, "%d", val);
+ if (write(fd, buf, size) <= 0)
+ error(1, errno, "Unable to write tcp_fastopen sysctl");
+ close(fd);
+ }
+}
+
+static struct rlimit rlim_old;
+
+static __attribute__((constructor)) void main_ctor(void)
+{
+ getrlimit(RLIMIT_MEMLOCK, &rlim_old);
+
+ if (rlim_old.rlim_cur != RLIM_INFINITY) {
+ struct rlimit rlim_new;
+
+ rlim_new.rlim_cur = rlim_old.rlim_cur + (1UL << 20);
+ rlim_new.rlim_max = rlim_old.rlim_max + (1UL << 20);
+ setrlimit(RLIMIT_MEMLOCK, &rlim_new);
+ }
+}
+
+static __attribute__((destructor)) void main_dtor(void)
+{
+ setrlimit(RLIMIT_MEMLOCK, &rlim_old);
+}
+
+int main(void)
+{
+ fprintf(stderr, "---- IPv4 UDP ----\n");
+ /* NOTE: UDP socket lookups traverse a different code path when there
+ * are > 10 sockets in a group. Run the bpf test through both paths.
+ */
+ test_reuseport_ebpf((struct test_params) {
+ .recv_family = AF_INET,
+ .send_family = AF_INET,
+ .protocol = SOCK_DGRAM,
+ .recv_socks = 10,
+ .recv_port = 8000,
+ .send_port_min = 9000});
+ test_reuseport_ebpf((struct test_params) {
+ .recv_family = AF_INET,
+ .send_family = AF_INET,
+ .protocol = SOCK_DGRAM,
+ .recv_socks = 20,
+ .recv_port = 8000,
+ .send_port_min = 9000});
+ test_reuseport_cbpf((struct test_params) {
+ .recv_family = AF_INET,
+ .send_family = AF_INET,
+ .protocol = SOCK_DGRAM,
+ .recv_socks = 10,
+ .recv_port = 8001,
+ .send_port_min = 9020});
+ test_reuseport_cbpf((struct test_params) {
+ .recv_family = AF_INET,
+ .send_family = AF_INET,
+ .protocol = SOCK_DGRAM,
+ .recv_socks = 20,
+ .recv_port = 8001,
+ .send_port_min = 9020});
+ test_extra_filter((struct test_params) {
+ .recv_family = AF_INET,
+ .protocol = SOCK_DGRAM,
+ .recv_port = 8002});
+ test_filter_no_reuseport((struct test_params) {
+ .recv_family = AF_INET,
+ .protocol = SOCK_DGRAM,
+ .recv_port = 8008});
+
+ fprintf(stderr, "---- IPv6 UDP ----\n");
+ test_reuseport_ebpf((struct test_params) {
+ .recv_family = AF_INET6,
+ .send_family = AF_INET6,
+ .protocol = SOCK_DGRAM,
+ .recv_socks = 10,
+ .recv_port = 8003,
+ .send_port_min = 9040});
+ test_reuseport_ebpf((struct test_params) {
+ .recv_family = AF_INET6,
+ .send_family = AF_INET6,
+ .protocol = SOCK_DGRAM,
+ .recv_socks = 20,
+ .recv_port = 8003,
+ .send_port_min = 9040});
+ test_reuseport_cbpf((struct test_params) {
+ .recv_family = AF_INET6,
+ .send_family = AF_INET6,
+ .protocol = SOCK_DGRAM,
+ .recv_socks = 10,
+ .recv_port = 8004,
+ .send_port_min = 9060});
+ test_reuseport_cbpf((struct test_params) {
+ .recv_family = AF_INET6,
+ .send_family = AF_INET6,
+ .protocol = SOCK_DGRAM,
+ .recv_socks = 20,
+ .recv_port = 8004,
+ .send_port_min = 9060});
+ test_extra_filter((struct test_params) {
+ .recv_family = AF_INET6,
+ .protocol = SOCK_DGRAM,
+ .recv_port = 8005});
+ test_filter_no_reuseport((struct test_params) {
+ .recv_family = AF_INET6,
+ .protocol = SOCK_DGRAM,
+ .recv_port = 8009});
+
+ fprintf(stderr, "---- IPv6 UDP w/ mapped IPv4 ----\n");
+ test_reuseport_ebpf((struct test_params) {
+ .recv_family = AF_INET6,
+ .send_family = AF_INET,
+ .protocol = SOCK_DGRAM,
+ .recv_socks = 20,
+ .recv_port = 8006,
+ .send_port_min = 9080});
+ test_reuseport_ebpf((struct test_params) {
+ .recv_family = AF_INET6,
+ .send_family = AF_INET,
+ .protocol = SOCK_DGRAM,
+ .recv_socks = 10,
+ .recv_port = 8006,
+ .send_port_min = 9080});
+ test_reuseport_cbpf((struct test_params) {
+ .recv_family = AF_INET6,
+ .send_family = AF_INET,
+ .protocol = SOCK_DGRAM,
+ .recv_socks = 10,
+ .recv_port = 8007,
+ .send_port_min = 9100});
+ test_reuseport_cbpf((struct test_params) {
+ .recv_family = AF_INET6,
+ .send_family = AF_INET,
+ .protocol = SOCK_DGRAM,
+ .recv_socks = 20,
+ .recv_port = 8007,
+ .send_port_min = 9100});
+
+ /* TCP fastopen is required for the TCP tests */
+ enable_fastopen();
+ fprintf(stderr, "---- IPv4 TCP ----\n");
+ test_reuseport_ebpf((struct test_params) {
+ .recv_family = AF_INET,
+ .send_family = AF_INET,
+ .protocol = SOCK_STREAM,
+ .recv_socks = 10,
+ .recv_port = 8008,
+ .send_port_min = 9120});
+ test_reuseport_cbpf((struct test_params) {
+ .recv_family = AF_INET,
+ .send_family = AF_INET,
+ .protocol = SOCK_STREAM,
+ .recv_socks = 10,
+ .recv_port = 8009,
+ .send_port_min = 9160});
+ test_extra_filter((struct test_params) {
+ .recv_family = AF_INET,
+ .protocol = SOCK_STREAM,
+ .recv_port = 8010});
+ test_filter_no_reuseport((struct test_params) {
+ .recv_family = AF_INET,
+ .protocol = SOCK_STREAM,
+ .recv_port = 8011});
+
+ fprintf(stderr, "---- IPv6 TCP ----\n");
+ test_reuseport_ebpf((struct test_params) {
+ .recv_family = AF_INET6,
+ .send_family = AF_INET6,
+ .protocol = SOCK_STREAM,
+ .recv_socks = 10,
+ .recv_port = 8012,
+ .send_port_min = 9200});
+ test_reuseport_cbpf((struct test_params) {
+ .recv_family = AF_INET6,
+ .send_family = AF_INET6,
+ .protocol = SOCK_STREAM,
+ .recv_socks = 10,
+ .recv_port = 8013,
+ .send_port_min = 9240});
+ test_extra_filter((struct test_params) {
+ .recv_family = AF_INET6,
+ .protocol = SOCK_STREAM,
+ .recv_port = 8014});
+ test_filter_no_reuseport((struct test_params) {
+ .recv_family = AF_INET6,
+ .protocol = SOCK_STREAM,
+ .recv_port = 8015});
+
+ fprintf(stderr, "---- IPv6 TCP w/ mapped IPv4 ----\n");
+ test_reuseport_ebpf((struct test_params) {
+ .recv_family = AF_INET6,
+ .send_family = AF_INET,
+ .protocol = SOCK_STREAM,
+ .recv_socks = 10,
+ .recv_port = 8016,
+ .send_port_min = 9320});
+ test_reuseport_cbpf((struct test_params) {
+ .recv_family = AF_INET6,
+ .send_family = AF_INET,
+ .protocol = SOCK_STREAM,
+ .recv_socks = 10,
+ .recv_port = 8017,
+ .send_port_min = 9360});
+
+ test_filter_without_bind();
+
+ fprintf(stderr, "SUCCESS\n");
+ return 0;
+}
diff --git a/tools/testing/selftests/net/reuseport_bpf_cpu.c b/tools/testing/selftests/net/reuseport_bpf_cpu.c
new file mode 100644
index 000000000..2d6461747
--- /dev/null
+++ b/tools/testing/selftests/net/reuseport_bpf_cpu.c
@@ -0,0 +1,259 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test functionality of BPF filters with SO_REUSEPORT. This program creates
+ * an SO_REUSEPORT receiver group containing one socket per CPU core. It then
+ * creates a BPF program that will select a socket from this group based
+ * on the core id that receives the packet. The sending code artificially
+ * moves itself to run on different core ids and sends one message from
+ * each core. Since these packets are delivered over loopback, they should
+ * arrive on the same core that sent them. The receiving code then ensures
+ * that the packet was received on the socket for the corresponding core id.
+ * This entire process is done for several different core id permutations
+ * and for each IPv4/IPv6 and TCP/UDP combination.
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <linux/filter.h>
+#include <linux/in.h>
+#include <linux/unistd.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/epoll.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+static const int PORT = 8888;
+
+static void build_rcv_group(int *rcv_fd, size_t len, int family, int proto)
+{
+ struct sockaddr_storage addr;
+ struct sockaddr_in *addr4;
+ struct sockaddr_in6 *addr6;
+ size_t i;
+ int opt;
+
+ switch (family) {
+ case AF_INET:
+ addr4 = (struct sockaddr_in *)&addr;
+ addr4->sin_family = AF_INET;
+ addr4->sin_addr.s_addr = htonl(INADDR_ANY);
+ addr4->sin_port = htons(PORT);
+ break;
+ case AF_INET6:
+ addr6 = (struct sockaddr_in6 *)&addr;
+ addr6->sin6_family = AF_INET6;
+ addr6->sin6_addr = in6addr_any;
+ addr6->sin6_port = htons(PORT);
+ break;
+ default:
+ error(1, 0, "Unsupported family %d", family);
+ }
+
+ for (i = 0; i < len; ++i) {
+ rcv_fd[i] = socket(family, proto, 0);
+ if (rcv_fd[i] < 0)
+ error(1, errno, "failed to create receive socket");
+
+ opt = 1;
+ if (setsockopt(rcv_fd[i], SOL_SOCKET, SO_REUSEPORT, &opt,
+ sizeof(opt)))
+ error(1, errno, "failed to set SO_REUSEPORT");
+
+ if (bind(rcv_fd[i], (struct sockaddr *)&addr, sizeof(addr)))
+ error(1, errno, "failed to bind receive socket");
+
+ if (proto == SOCK_STREAM && listen(rcv_fd[i], len * 10))
+ error(1, errno, "failed to listen on receive port");
+ }
+}
+
+static void attach_bpf(int fd)
+{
+ struct sock_filter code[] = {
+ /* A = raw_smp_processor_id() */
+ { BPF_LD | BPF_W | BPF_ABS, 0, 0, SKF_AD_OFF + SKF_AD_CPU },
+ /* return A */
+ { BPF_RET | BPF_A, 0, 0, 0 },
+ };
+ struct sock_fprog p = {
+ .len = 2,
+ .filter = code,
+ };
+
+ if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_REUSEPORT_CBPF, &p, sizeof(p)))
+ error(1, errno, "failed to set SO_ATTACH_REUSEPORT_CBPF");
+}
+
+static void send_from_cpu(int cpu_id, int family, int proto)
+{
+ struct sockaddr_storage saddr, daddr;
+ struct sockaddr_in *saddr4, *daddr4;
+ struct sockaddr_in6 *saddr6, *daddr6;
+ cpu_set_t cpu_set;
+ int fd;
+
+ switch (family) {
+ case AF_INET:
+ saddr4 = (struct sockaddr_in *)&saddr;
+ saddr4->sin_family = AF_INET;
+ saddr4->sin_addr.s_addr = htonl(INADDR_ANY);
+ saddr4->sin_port = 0;
+
+ daddr4 = (struct sockaddr_in *)&daddr;
+ daddr4->sin_family = AF_INET;
+ daddr4->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+ daddr4->sin_port = htons(PORT);
+ break;
+ case AF_INET6:
+ saddr6 = (struct sockaddr_in6 *)&saddr;
+ saddr6->sin6_family = AF_INET6;
+ saddr6->sin6_addr = in6addr_any;
+ saddr6->sin6_port = 0;
+
+ daddr6 = (struct sockaddr_in6 *)&daddr;
+ daddr6->sin6_family = AF_INET6;
+ daddr6->sin6_addr = in6addr_loopback;
+ daddr6->sin6_port = htons(PORT);
+ break;
+ default:
+ error(1, 0, "Unsupported family %d", family);
+ }
+
+ memset(&cpu_set, 0, sizeof(cpu_set));
+ CPU_SET(cpu_id, &cpu_set);
+ if (sched_setaffinity(0, sizeof(cpu_set), &cpu_set) < 0)
+ error(1, errno, "failed to pin to cpu");
+
+ fd = socket(family, proto, 0);
+ if (fd < 0)
+ error(1, errno, "failed to create send socket");
+
+ if (bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)))
+ error(1, errno, "failed to bind send socket");
+
+ if (connect(fd, (struct sockaddr *)&daddr, sizeof(daddr)))
+ error(1, errno, "failed to connect send socket");
+
+ if (send(fd, "a", 1, 0) < 0)
+ error(1, errno, "failed to send message");
+
+ close(fd);
+}
+
+static
+void receive_on_cpu(int *rcv_fd, int len, int epfd, int cpu_id, int proto)
+{
+ struct epoll_event ev;
+ int i, fd;
+ char buf[8];
+
+ i = epoll_wait(epfd, &ev, 1, -1);
+ if (i < 0)
+ error(1, errno, "epoll_wait failed");
+
+ if (proto == SOCK_STREAM) {
+ fd = accept(ev.data.fd, NULL, NULL);
+ if (fd < 0)
+ error(1, errno, "failed to accept");
+ i = recv(fd, buf, sizeof(buf), 0);
+ close(fd);
+ } else {
+ i = recv(ev.data.fd, buf, sizeof(buf), 0);
+ }
+
+ if (i < 0)
+ error(1, errno, "failed to recv");
+
+ for (i = 0; i < len; ++i)
+ if (ev.data.fd == rcv_fd[i])
+ break;
+ if (i == len)
+ error(1, 0, "failed to find socket");
+ fprintf(stderr, "send cpu %d, receive socket %d\n", cpu_id, i);
+ if (cpu_id != i)
+ error(1, 0, "cpu id/receive socket mismatch");
+}
+
+static void test(int *rcv_fd, int len, int family, int proto)
+{
+ struct epoll_event ev;
+ int epfd, cpu;
+
+ build_rcv_group(rcv_fd, len, family, proto);
+ attach_bpf(rcv_fd[0]);
+
+ epfd = epoll_create(1);
+ if (epfd < 0)
+ error(1, errno, "failed to create epoll");
+ for (cpu = 0; cpu < len; ++cpu) {
+ ev.events = EPOLLIN;
+ ev.data.fd = rcv_fd[cpu];
+ if (epoll_ctl(epfd, EPOLL_CTL_ADD, rcv_fd[cpu], &ev))
+ error(1, errno, "failed to register sock epoll");
+ }
+
+ /* Forward iterate */
+ for (cpu = 0; cpu < len; ++cpu) {
+ send_from_cpu(cpu, family, proto);
+ receive_on_cpu(rcv_fd, len, epfd, cpu, proto);
+ }
+
+ /* Reverse iterate */
+ for (cpu = len - 1; cpu >= 0; --cpu) {
+ send_from_cpu(cpu, family, proto);
+ receive_on_cpu(rcv_fd, len, epfd, cpu, proto);
+ }
+
+ /* Even cores */
+ for (cpu = 0; cpu < len; cpu += 2) {
+ send_from_cpu(cpu, family, proto);
+ receive_on_cpu(rcv_fd, len, epfd, cpu, proto);
+ }
+
+ /* Odd cores */
+ for (cpu = 1; cpu < len; cpu += 2) {
+ send_from_cpu(cpu, family, proto);
+ receive_on_cpu(rcv_fd, len, epfd, cpu, proto);
+ }
+
+ close(epfd);
+ for (cpu = 0; cpu < len; ++cpu)
+ close(rcv_fd[cpu]);
+}
+
+int main(void)
+{
+ int *rcv_fd, cpus;
+
+ cpus = sysconf(_SC_NPROCESSORS_ONLN);
+ if (cpus <= 0)
+ error(1, errno, "failed counting cpus");
+
+ rcv_fd = calloc(cpus, sizeof(int));
+ if (!rcv_fd)
+ error(1, 0, "failed to allocate array");
+
+ fprintf(stderr, "---- IPv4 UDP ----\n");
+ test(rcv_fd, cpus, AF_INET, SOCK_DGRAM);
+
+ fprintf(stderr, "---- IPv6 UDP ----\n");
+ test(rcv_fd, cpus, AF_INET6, SOCK_DGRAM);
+
+ fprintf(stderr, "---- IPv4 TCP ----\n");
+ test(rcv_fd, cpus, AF_INET, SOCK_STREAM);
+
+ fprintf(stderr, "---- IPv6 TCP ----\n");
+ test(rcv_fd, cpus, AF_INET6, SOCK_STREAM);
+
+ free(rcv_fd);
+
+ fprintf(stderr, "SUCCESS\n");
+ return 0;
+}
diff --git a/tools/testing/selftests/net/reuseport_bpf_numa.c b/tools/testing/selftests/net/reuseport_bpf_numa.c
new file mode 100644
index 000000000..c9f478b40
--- /dev/null
+++ b/tools/testing/selftests/net/reuseport_bpf_numa.c
@@ -0,0 +1,258 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test functionality of BPF filters with SO_REUSEPORT. Same test as
+ * in reuseport_bpf_cpu, only as one socket per NUMA node.
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <linux/filter.h>
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <linux/unistd.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/epoll.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+#include <numa.h>
+
+#include "../kselftest.h"
+
+static const int PORT = 8888;
+
+static void build_rcv_group(int *rcv_fd, size_t len, int family, int proto)
+{
+ struct sockaddr_storage addr;
+ struct sockaddr_in *addr4;
+ struct sockaddr_in6 *addr6;
+ size_t i;
+ int opt;
+
+ switch (family) {
+ case AF_INET:
+ addr4 = (struct sockaddr_in *)&addr;
+ addr4->sin_family = AF_INET;
+ addr4->sin_addr.s_addr = htonl(INADDR_ANY);
+ addr4->sin_port = htons(PORT);
+ break;
+ case AF_INET6:
+ addr6 = (struct sockaddr_in6 *)&addr;
+ addr6->sin6_family = AF_INET6;
+ addr6->sin6_addr = in6addr_any;
+ addr6->sin6_port = htons(PORT);
+ break;
+ default:
+ error(1, 0, "Unsupported family %d", family);
+ }
+
+ for (i = 0; i < len; ++i) {
+ rcv_fd[i] = socket(family, proto, 0);
+ if (rcv_fd[i] < 0)
+ error(1, errno, "failed to create receive socket");
+
+ opt = 1;
+ if (setsockopt(rcv_fd[i], SOL_SOCKET, SO_REUSEPORT, &opt,
+ sizeof(opt)))
+ error(1, errno, "failed to set SO_REUSEPORT");
+
+ if (bind(rcv_fd[i], (struct sockaddr *)&addr, sizeof(addr)))
+ error(1, errno, "failed to bind receive socket");
+
+ if (proto == SOCK_STREAM && listen(rcv_fd[i], len * 10))
+ error(1, errno, "failed to listen on receive port");
+ }
+}
+
+static void attach_bpf(int fd)
+{
+ static char bpf_log_buf[65536];
+ static const char bpf_license[] = "";
+
+ int bpf_fd;
+ const struct bpf_insn prog[] = {
+ /* R0 = bpf_get_numa_node_id() */
+ { BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_numa_node_id },
+ /* return R0 */
+ { BPF_JMP | BPF_EXIT, 0, 0, 0, 0 }
+ };
+ union bpf_attr attr;
+
+ memset(&attr, 0, sizeof(attr));
+ attr.prog_type = BPF_PROG_TYPE_SOCKET_FILTER;
+ attr.insn_cnt = sizeof(prog) / sizeof(prog[0]);
+ attr.insns = (unsigned long) &prog;
+ attr.license = (unsigned long) &bpf_license;
+ attr.log_buf = (unsigned long) &bpf_log_buf;
+ attr.log_size = sizeof(bpf_log_buf);
+ attr.log_level = 1;
+
+ bpf_fd = syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr));
+ if (bpf_fd < 0)
+ error(1, errno, "ebpf error. log:\n%s\n", bpf_log_buf);
+
+ if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_REUSEPORT_EBPF, &bpf_fd,
+ sizeof(bpf_fd)))
+ error(1, errno, "failed to set SO_ATTACH_REUSEPORT_EBPF");
+
+ close(bpf_fd);
+}
+
+static void send_from_node(int node_id, int family, int proto)
+{
+ struct sockaddr_storage saddr, daddr;
+ struct sockaddr_in *saddr4, *daddr4;
+ struct sockaddr_in6 *saddr6, *daddr6;
+ int fd;
+
+ switch (family) {
+ case AF_INET:
+ saddr4 = (struct sockaddr_in *)&saddr;
+ saddr4->sin_family = AF_INET;
+ saddr4->sin_addr.s_addr = htonl(INADDR_ANY);
+ saddr4->sin_port = 0;
+
+ daddr4 = (struct sockaddr_in *)&daddr;
+ daddr4->sin_family = AF_INET;
+ daddr4->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+ daddr4->sin_port = htons(PORT);
+ break;
+ case AF_INET6:
+ saddr6 = (struct sockaddr_in6 *)&saddr;
+ saddr6->sin6_family = AF_INET6;
+ saddr6->sin6_addr = in6addr_any;
+ saddr6->sin6_port = 0;
+
+ daddr6 = (struct sockaddr_in6 *)&daddr;
+ daddr6->sin6_family = AF_INET6;
+ daddr6->sin6_addr = in6addr_loopback;
+ daddr6->sin6_port = htons(PORT);
+ break;
+ default:
+ error(1, 0, "Unsupported family %d", family);
+ }
+
+ if (numa_run_on_node(node_id) < 0)
+ error(1, errno, "failed to pin to node");
+
+ fd = socket(family, proto, 0);
+ if (fd < 0)
+ error(1, errno, "failed to create send socket");
+
+ if (bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)))
+ error(1, errno, "failed to bind send socket");
+
+ if (connect(fd, (struct sockaddr *)&daddr, sizeof(daddr)))
+ error(1, errno, "failed to connect send socket");
+
+ if (send(fd, "a", 1, 0) < 0)
+ error(1, errno, "failed to send message");
+
+ close(fd);
+}
+
+static
+void receive_on_node(int *rcv_fd, int len, int epfd, int node_id, int proto)
+{
+ struct epoll_event ev;
+ int i, fd;
+ char buf[8];
+
+ i = epoll_wait(epfd, &ev, 1, -1);
+ if (i < 0)
+ error(1, errno, "epoll_wait failed");
+
+ if (proto == SOCK_STREAM) {
+ fd = accept(ev.data.fd, NULL, NULL);
+ if (fd < 0)
+ error(1, errno, "failed to accept");
+ i = recv(fd, buf, sizeof(buf), 0);
+ close(fd);
+ } else {
+ i = recv(ev.data.fd, buf, sizeof(buf), 0);
+ }
+
+ if (i < 0)
+ error(1, errno, "failed to recv");
+
+ for (i = 0; i < len; ++i)
+ if (ev.data.fd == rcv_fd[i])
+ break;
+ if (i == len)
+ error(1, 0, "failed to find socket");
+ fprintf(stderr, "send node %d, receive socket %d\n", node_id, i);
+ if (node_id != i)
+ error(1, 0, "node id/receive socket mismatch");
+}
+
+static void test(int *rcv_fd, int len, int family, int proto)
+{
+ struct epoll_event ev;
+ int epfd, node;
+
+ build_rcv_group(rcv_fd, len, family, proto);
+ attach_bpf(rcv_fd[0]);
+
+ epfd = epoll_create(1);
+ if (epfd < 0)
+ error(1, errno, "failed to create epoll");
+ for (node = 0; node < len; ++node) {
+ ev.events = EPOLLIN;
+ ev.data.fd = rcv_fd[node];
+ if (epoll_ctl(epfd, EPOLL_CTL_ADD, rcv_fd[node], &ev))
+ error(1, errno, "failed to register sock epoll");
+ }
+
+ /* Forward iterate */
+ for (node = 0; node < len; ++node) {
+ send_from_node(node, family, proto);
+ receive_on_node(rcv_fd, len, epfd, node, proto);
+ }
+
+ /* Reverse iterate */
+ for (node = len - 1; node >= 0; --node) {
+ send_from_node(node, family, proto);
+ receive_on_node(rcv_fd, len, epfd, node, proto);
+ }
+
+ close(epfd);
+ for (node = 0; node < len; ++node)
+ close(rcv_fd[node]);
+}
+
+int main(void)
+{
+ int *rcv_fd, nodes;
+
+ if (numa_available() < 0)
+ ksft_exit_skip("no numa api support\n");
+
+ nodes = numa_max_node() + 1;
+
+ rcv_fd = calloc(nodes, sizeof(int));
+ if (!rcv_fd)
+ error(1, 0, "failed to allocate array");
+
+ fprintf(stderr, "---- IPv4 UDP ----\n");
+ test(rcv_fd, nodes, AF_INET, SOCK_DGRAM);
+
+ fprintf(stderr, "---- IPv6 UDP ----\n");
+ test(rcv_fd, nodes, AF_INET6, SOCK_DGRAM);
+
+ fprintf(stderr, "---- IPv4 TCP ----\n");
+ test(rcv_fd, nodes, AF_INET, SOCK_STREAM);
+
+ fprintf(stderr, "---- IPv6 TCP ----\n");
+ test(rcv_fd, nodes, AF_INET6, SOCK_STREAM);
+
+ free(rcv_fd);
+
+ fprintf(stderr, "SUCCESS\n");
+ return 0;
+}
diff --git a/tools/testing/selftests/net/reuseport_dualstack.c b/tools/testing/selftests/net/reuseport_dualstack.c
new file mode 100644
index 000000000..fb7a59ed7
--- /dev/null
+++ b/tools/testing/selftests/net/reuseport_dualstack.c
@@ -0,0 +1,210 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * It is possible to use SO_REUSEPORT to open multiple sockets bound to
+ * equivalent local addresses using AF_INET and AF_INET6 at the same time. If
+ * the AF_INET6 socket has IPV6_V6ONLY set, it's clear which socket should
+ * receive a given incoming packet. However, when it is not set, incoming v4
+ * packets should prefer the AF_INET socket(s). This behavior was defined with
+ * the original SO_REUSEPORT implementation, but broke with
+ * e32ea7e74727 ("soreuseport: fast reuseport UDP socket selection")
+ * This test creates these mixed AF_INET/AF_INET6 sockets and asserts the
+ * AF_INET preference for v4 packets.
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <linux/in.h>
+#include <linux/unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/epoll.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+static const int PORT = 8888;
+
+static void build_rcv_fd(int family, int proto, int *rcv_fds, int count)
+{
+ struct sockaddr_storage addr;
+ struct sockaddr_in *addr4;
+ struct sockaddr_in6 *addr6;
+ int opt, i;
+
+ switch (family) {
+ case AF_INET:
+ addr4 = (struct sockaddr_in *)&addr;
+ addr4->sin_family = AF_INET;
+ addr4->sin_addr.s_addr = htonl(INADDR_ANY);
+ addr4->sin_port = htons(PORT);
+ break;
+ case AF_INET6:
+ addr6 = (struct sockaddr_in6 *)&addr;
+ addr6->sin6_family = AF_INET6;
+ addr6->sin6_addr = in6addr_any;
+ addr6->sin6_port = htons(PORT);
+ break;
+ default:
+ error(1, 0, "Unsupported family %d", family);
+ }
+
+ for (i = 0; i < count; ++i) {
+ rcv_fds[i] = socket(family, proto, 0);
+ if (rcv_fds[i] < 0)
+ error(1, errno, "failed to create receive socket");
+
+ opt = 1;
+ if (setsockopt(rcv_fds[i], SOL_SOCKET, SO_REUSEPORT, &opt,
+ sizeof(opt)))
+ error(1, errno, "failed to set SO_REUSEPORT");
+
+ if (bind(rcv_fds[i], (struct sockaddr *)&addr, sizeof(addr)))
+ error(1, errno, "failed to bind receive socket");
+
+ if (proto == SOCK_STREAM && listen(rcv_fds[i], 10))
+ error(1, errno, "failed to listen on receive port");
+ }
+}
+
+static void send_from_v4(int proto)
+{
+ struct sockaddr_in saddr, daddr;
+ int fd;
+
+ saddr.sin_family = AF_INET;
+ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
+ saddr.sin_port = 0;
+
+ daddr.sin_family = AF_INET;
+ daddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+ daddr.sin_port = htons(PORT);
+
+ fd = socket(AF_INET, proto, 0);
+ if (fd < 0)
+ error(1, errno, "failed to create send socket");
+
+ if (bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)))
+ error(1, errno, "failed to bind send socket");
+
+ if (connect(fd, (struct sockaddr *)&daddr, sizeof(daddr)))
+ error(1, errno, "failed to connect send socket");
+
+ if (send(fd, "a", 1, 0) < 0)
+ error(1, errno, "failed to send message");
+
+ close(fd);
+}
+
+static int receive_once(int epfd, int proto)
+{
+ struct epoll_event ev;
+ int i, fd;
+ char buf[8];
+
+ i = epoll_wait(epfd, &ev, 1, -1);
+ if (i < 0)
+ error(1, errno, "epoll_wait failed");
+
+ if (proto == SOCK_STREAM) {
+ fd = accept(ev.data.fd, NULL, NULL);
+ if (fd < 0)
+ error(1, errno, "failed to accept");
+ i = recv(fd, buf, sizeof(buf), 0);
+ close(fd);
+ } else {
+ i = recv(ev.data.fd, buf, sizeof(buf), 0);
+ }
+
+ if (i < 0)
+ error(1, errno, "failed to recv");
+
+ return ev.data.fd;
+}
+
+static void test(int *rcv_fds, int count, int proto)
+{
+ struct epoll_event ev;
+ int epfd, i, test_fd;
+ int test_family;
+ socklen_t len;
+
+ epfd = epoll_create(1);
+ if (epfd < 0)
+ error(1, errno, "failed to create epoll");
+
+ ev.events = EPOLLIN;
+ for (i = 0; i < count; ++i) {
+ ev.data.fd = rcv_fds[i];
+ if (epoll_ctl(epfd, EPOLL_CTL_ADD, rcv_fds[i], &ev))
+ error(1, errno, "failed to register sock epoll");
+ }
+
+ send_from_v4(proto);
+
+ test_fd = receive_once(epfd, proto);
+ len = sizeof(test_family);
+ if (getsockopt(test_fd, SOL_SOCKET, SO_DOMAIN, &test_family, &len))
+ error(1, errno, "failed to read socket domain");
+ if (test_family != AF_INET)
+ error(1, 0, "expected to receive on v4 socket but got v6 (%d)",
+ test_family);
+
+ close(epfd);
+}
+
+int main(void)
+{
+ int rcv_fds[32], i;
+
+ fprintf(stderr, "---- UDP IPv4 created before IPv6 ----\n");
+ build_rcv_fd(AF_INET, SOCK_DGRAM, rcv_fds, 5);
+ build_rcv_fd(AF_INET6, SOCK_DGRAM, &(rcv_fds[5]), 5);
+ test(rcv_fds, 10, SOCK_DGRAM);
+ for (i = 0; i < 10; ++i)
+ close(rcv_fds[i]);
+
+ fprintf(stderr, "---- UDP IPv6 created before IPv4 ----\n");
+ build_rcv_fd(AF_INET6, SOCK_DGRAM, rcv_fds, 5);
+ build_rcv_fd(AF_INET, SOCK_DGRAM, &(rcv_fds[5]), 5);
+ test(rcv_fds, 10, SOCK_DGRAM);
+ for (i = 0; i < 10; ++i)
+ close(rcv_fds[i]);
+
+ /* NOTE: UDP socket lookups traverse a different code path when there
+ * are > 10 sockets in a group.
+ */
+ fprintf(stderr, "---- UDP IPv4 created before IPv6 (large) ----\n");
+ build_rcv_fd(AF_INET, SOCK_DGRAM, rcv_fds, 16);
+ build_rcv_fd(AF_INET6, SOCK_DGRAM, &(rcv_fds[16]), 16);
+ test(rcv_fds, 32, SOCK_DGRAM);
+ for (i = 0; i < 32; ++i)
+ close(rcv_fds[i]);
+
+ fprintf(stderr, "---- UDP IPv6 created before IPv4 (large) ----\n");
+ build_rcv_fd(AF_INET6, SOCK_DGRAM, rcv_fds, 16);
+ build_rcv_fd(AF_INET, SOCK_DGRAM, &(rcv_fds[16]), 16);
+ test(rcv_fds, 32, SOCK_DGRAM);
+ for (i = 0; i < 32; ++i)
+ close(rcv_fds[i]);
+
+ fprintf(stderr, "---- TCP IPv4 created before IPv6 ----\n");
+ build_rcv_fd(AF_INET, SOCK_STREAM, rcv_fds, 5);
+ build_rcv_fd(AF_INET6, SOCK_STREAM, &(rcv_fds[5]), 5);
+ test(rcv_fds, 10, SOCK_STREAM);
+ for (i = 0; i < 10; ++i)
+ close(rcv_fds[i]);
+
+ fprintf(stderr, "---- TCP IPv6 created before IPv4 ----\n");
+ build_rcv_fd(AF_INET6, SOCK_STREAM, rcv_fds, 5);
+ build_rcv_fd(AF_INET, SOCK_STREAM, &(rcv_fds[5]), 5);
+ test(rcv_fds, 10, SOCK_STREAM);
+ for (i = 0; i < 10; ++i)
+ close(rcv_fds[i]);
+
+ fprintf(stderr, "SUCCESS\n");
+ return 0;
+}
diff --git a/tools/testing/selftests/net/route_localnet.sh b/tools/testing/selftests/net/route_localnet.sh
new file mode 100755
index 000000000..116bfeab7
--- /dev/null
+++ b/tools/testing/selftests/net/route_localnet.sh
@@ -0,0 +1,74 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run a couple of tests when route_localnet = 1.
+
+readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
+
+setup() {
+ ip netns add "${PEER_NS}"
+ ip -netns "${PEER_NS}" link set dev lo up
+ ip link add name veth0 type veth peer name veth1
+ ip link set dev veth0 up
+ ip link set dev veth1 netns "${PEER_NS}"
+
+ # Enable route_localnet and delete useless route 127.0.0.0/8.
+ sysctl -w net.ipv4.conf.veth0.route_localnet=1
+ ip netns exec "${PEER_NS}" sysctl -w net.ipv4.conf.veth1.route_localnet=1
+ ip route del 127.0.0.0/8 dev lo table local
+ ip netns exec "${PEER_NS}" ip route del 127.0.0.0/8 dev lo table local
+
+ ifconfig veth0 127.25.3.4/24 up
+ ip netns exec "${PEER_NS}" ifconfig veth1 127.25.3.14/24 up
+
+ ip route flush cache
+ ip netns exec "${PEER_NS}" ip route flush cache
+}
+
+cleanup() {
+ ip link del veth0
+ ip route add local 127.0.0.0/8 dev lo proto kernel scope host src 127.0.0.1
+ local -r ns="$(ip netns list|grep $PEER_NS)"
+ [ -n "$ns" ] && ip netns del $ns 2>/dev/null
+}
+
+# Run test when arp_announce = 2.
+run_arp_announce_test() {
+ echo "run arp_announce test"
+ setup
+
+ sysctl -w net.ipv4.conf.veth0.arp_announce=2
+ ip netns exec "${PEER_NS}" sysctl -w net.ipv4.conf.veth1.arp_announce=2
+ ping -c5 -I veth0 127.25.3.14
+ if [ $? -ne 0 ];then
+ echo "failed"
+ else
+ echo "ok"
+ fi
+
+ cleanup
+}
+
+# Run test when arp_ignore = 3.
+run_arp_ignore_test() {
+ echo "run arp_ignore test"
+ setup
+
+ sysctl -w net.ipv4.conf.veth0.arp_ignore=3
+ ip netns exec "${PEER_NS}" sysctl -w net.ipv4.conf.veth1.arp_ignore=3
+ ping -c5 -I veth0 127.25.3.14
+ if [ $? -ne 0 ];then
+ echo "failed"
+ else
+ echo "ok"
+ fi
+
+ cleanup
+}
+
+run_all_tests() {
+ run_arp_announce_test
+ run_arp_ignore_test
+}
+
+run_all_tests
diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh
new file mode 100755
index 000000000..cbf166df5
--- /dev/null
+++ b/tools/testing/selftests/net/rtnetlink.sh
@@ -0,0 +1,1301 @@
+#!/bin/bash
+#
+# This test is for checking rtnetlink callpaths, and get as much coverage as possible.
+#
+# set -e
+
+devdummy="test-dummy0"
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+# set global exit status, but never reset nonzero one.
+check_err()
+{
+ if [ $ret -eq 0 ]; then
+ ret=$1
+ fi
+}
+
+# same but inverted -- used when command must fail for test to pass
+check_fail()
+{
+ if [ $1 -eq 0 ]; then
+ ret=1
+ fi
+}
+
+kci_add_dummy()
+{
+ ip link add name "$devdummy" type dummy
+ check_err $?
+ ip link set "$devdummy" up
+ check_err $?
+}
+
+kci_del_dummy()
+{
+ ip link del dev "$devdummy"
+ check_err $?
+}
+
+kci_test_netconf()
+{
+ dev="$1"
+ r=$ret
+
+ ip netconf show dev "$dev" > /dev/null
+ check_err $?
+
+ for f in 4 6; do
+ ip -$f netconf show dev "$dev" > /dev/null
+ check_err $?
+ done
+
+ if [ $ret -ne 0 ] ;then
+ echo "FAIL: ip netconf show $dev"
+ test $r -eq 0 && ret=0
+ return 1
+ fi
+}
+
+# add a bridge with vlans on top
+kci_test_bridge()
+{
+ devbr="test-br0"
+ vlandev="testbr-vlan1"
+
+ local ret=0
+ ip link add name "$devbr" type bridge
+ check_err $?
+
+ ip link set dev "$devdummy" master "$devbr"
+ check_err $?
+
+ ip link set "$devbr" up
+ check_err $?
+
+ ip link add link "$devbr" name "$vlandev" type vlan id 1
+ check_err $?
+ ip addr add dev "$vlandev" 10.200.7.23/30
+ check_err $?
+ ip -6 addr add dev "$vlandev" dead:42::1234/64
+ check_err $?
+ ip -d link > /dev/null
+ check_err $?
+ ip r s t all > /dev/null
+ check_err $?
+
+ for name in "$devbr" "$vlandev" "$devdummy" ; do
+ kci_test_netconf "$name"
+ done
+
+ ip -6 addr del dev "$vlandev" dead:42::1234/64
+ check_err $?
+
+ ip link del dev "$vlandev"
+ check_err $?
+ ip link del dev "$devbr"
+ check_err $?
+
+ if [ $ret -ne 0 ];then
+ echo "FAIL: bridge setup"
+ return 1
+ fi
+ echo "PASS: bridge setup"
+
+}
+
+kci_test_gre()
+{
+ gredev=neta
+ rem=10.42.42.1
+ loc=10.0.0.1
+
+ local ret=0
+ ip tunnel add $gredev mode gre remote $rem local $loc ttl 1
+ check_err $?
+ ip link set $gredev up
+ check_err $?
+ ip addr add 10.23.7.10 dev $gredev
+ check_err $?
+ ip route add 10.23.8.0/30 dev $gredev
+ check_err $?
+ ip addr add dev "$devdummy" 10.23.7.11/24
+ check_err $?
+ ip link > /dev/null
+ check_err $?
+ ip addr > /dev/null
+ check_err $?
+
+ kci_test_netconf "$gredev"
+
+ ip addr del dev "$devdummy" 10.23.7.11/24
+ check_err $?
+
+ ip link del $gredev
+ check_err $?
+
+ if [ $ret -ne 0 ];then
+ echo "FAIL: gre tunnel endpoint"
+ return 1
+ fi
+ echo "PASS: gre tunnel endpoint"
+}
+
+# tc uses rtnetlink too, for full tc testing
+# please see tools/testing/selftests/tc-testing.
+kci_test_tc()
+{
+ dev=lo
+ local ret=0
+
+ tc qdisc add dev "$dev" root handle 1: htb
+ check_err $?
+ tc class add dev "$dev" parent 1: classid 1:10 htb rate 1mbit
+ check_err $?
+ tc filter add dev "$dev" parent 1:0 prio 5 handle ffe: protocol ip u32 divisor 256
+ check_err $?
+ tc filter add dev "$dev" parent 1:0 prio 5 handle ffd: protocol ip u32 divisor 256
+ check_err $?
+ tc filter add dev "$dev" parent 1:0 prio 5 handle ffc: protocol ip u32 divisor 256
+ check_err $?
+ tc filter add dev "$dev" protocol ip parent 1: prio 5 handle ffe:2:3 u32 ht ffe:2: match ip src 10.0.0.3 flowid 1:10
+ check_err $?
+ tc filter add dev "$dev" protocol ip parent 1: prio 5 handle ffe:2:2 u32 ht ffe:2: match ip src 10.0.0.2 flowid 1:10
+ check_err $?
+ tc filter show dev "$dev" parent 1:0 > /dev/null
+ check_err $?
+ tc filter del dev "$dev" protocol ip parent 1: prio 5 handle ffe:2:3 u32
+ check_err $?
+ tc filter show dev "$dev" parent 1:0 > /dev/null
+ check_err $?
+ tc qdisc del dev "$dev" root handle 1: htb
+ check_err $?
+
+ if [ $ret -ne 0 ];then
+ echo "FAIL: tc htb hierarchy"
+ return 1
+ fi
+ echo "PASS: tc htb hierarchy"
+
+}
+
+kci_test_polrouting()
+{
+ local ret=0
+ ip rule add fwmark 1 lookup 100
+ check_err $?
+ ip route add local 0.0.0.0/0 dev lo table 100
+ check_err $?
+ ip r s t all > /dev/null
+ check_err $?
+ ip rule del fwmark 1 lookup 100
+ check_err $?
+ ip route del local 0.0.0.0/0 dev lo table 100
+ check_err $?
+
+ if [ $ret -ne 0 ];then
+ echo "FAIL: policy route test"
+ return 1
+ fi
+ echo "PASS: policy routing"
+}
+
+kci_test_route_get()
+{
+ local hash_policy=$(sysctl -n net.ipv4.fib_multipath_hash_policy)
+
+ local ret=0
+
+ ip route get 127.0.0.1 > /dev/null
+ check_err $?
+ ip route get 127.0.0.1 dev "$devdummy" > /dev/null
+ check_err $?
+ ip route get ::1 > /dev/null
+ check_err $?
+ ip route get fe80::1 dev "$devdummy" > /dev/null
+ check_err $?
+ ip route get 127.0.0.1 from 127.0.0.1 oif lo tos 0x1 mark 0x1 > /dev/null
+ check_err $?
+ ip route get ::1 from ::1 iif lo oif lo tos 0x1 mark 0x1 > /dev/null
+ check_err $?
+ ip addr add dev "$devdummy" 10.23.7.11/24
+ check_err $?
+ ip route get 10.23.7.11 from 10.23.7.12 iif "$devdummy" > /dev/null
+ check_err $?
+ ip route add 10.23.8.0/24 \
+ nexthop via 10.23.7.13 dev "$devdummy" \
+ nexthop via 10.23.7.14 dev "$devdummy"
+ check_err $?
+ sysctl -wq net.ipv4.fib_multipath_hash_policy=0
+ ip route get 10.23.8.11 > /dev/null
+ check_err $?
+ sysctl -wq net.ipv4.fib_multipath_hash_policy=1
+ ip route get 10.23.8.11 > /dev/null
+ check_err $?
+ sysctl -wq net.ipv4.fib_multipath_hash_policy="$hash_policy"
+ ip route del 10.23.8.0/24
+ check_err $?
+ ip addr del dev "$devdummy" 10.23.7.11/24
+ check_err $?
+
+ if [ $ret -ne 0 ];then
+ echo "FAIL: route get"
+ return 1
+ fi
+
+ echo "PASS: route get"
+}
+
+kci_test_addrlft()
+{
+ for i in $(seq 10 100) ;do
+ lft=$(((RANDOM%3) + 1))
+ ip addr add 10.23.11.$i/32 dev "$devdummy" preferred_lft $lft valid_lft $((lft+1))
+ check_err $?
+ done
+
+ sleep 5
+
+ ip addr show dev "$devdummy" | grep "10.23.11."
+ if [ $? -eq 0 ]; then
+ echo "FAIL: preferred_lft addresses remaining"
+ check_err 1
+ return
+ fi
+
+ echo "PASS: preferred_lft addresses have expired"
+}
+
+kci_test_promote_secondaries()
+{
+ promote=$(sysctl -n net.ipv4.conf.$devdummy.promote_secondaries)
+
+ sysctl -q net.ipv4.conf.$devdummy.promote_secondaries=1
+
+ for i in $(seq 2 254);do
+ IP="10.23.11.$i"
+ ip -f inet addr add $IP/16 brd + dev "$devdummy"
+ ifconfig "$devdummy" $IP netmask 255.255.0.0
+ done
+
+ ip addr flush dev "$devdummy"
+
+ [ $promote -eq 0 ] && sysctl -q net.ipv4.conf.$devdummy.promote_secondaries=0
+
+ echo "PASS: promote_secondaries complete"
+}
+
+kci_test_addrlabel()
+{
+ local ret=0
+
+ ip addrlabel add prefix dead::/64 dev lo label 1
+ check_err $?
+
+ ip addrlabel list |grep -q "prefix dead::/64 dev lo label 1"
+ check_err $?
+
+ ip addrlabel del prefix dead::/64 dev lo label 1 2> /dev/null
+ check_err $?
+
+ ip addrlabel add prefix dead::/64 label 1 2> /dev/null
+ check_err $?
+
+ ip addrlabel del prefix dead::/64 label 1 2> /dev/null
+ check_err $?
+
+ # concurrent add/delete
+ for i in $(seq 1 1000); do
+ ip addrlabel add prefix 1c3::/64 label 12345 2>/dev/null
+ done &
+
+ for i in $(seq 1 1000); do
+ ip addrlabel del prefix 1c3::/64 label 12345 2>/dev/null
+ done
+
+ wait
+
+ ip addrlabel del prefix 1c3::/64 label 12345 2>/dev/null
+
+ if [ $ret -ne 0 ];then
+ echo "FAIL: ipv6 addrlabel"
+ return 1
+ fi
+
+ echo "PASS: ipv6 addrlabel"
+}
+
+kci_test_ifalias()
+{
+ local ret=0
+ namewant=$(uuidgen)
+ syspathname="/sys/class/net/$devdummy/ifalias"
+
+ ip link set dev "$devdummy" alias "$namewant"
+ check_err $?
+
+ if [ $ret -ne 0 ]; then
+ echo "FAIL: cannot set interface alias of $devdummy to $namewant"
+ return 1
+ fi
+
+ ip link show "$devdummy" | grep -q "alias $namewant"
+ check_err $?
+
+ if [ -r "$syspathname" ] ; then
+ read namehave < "$syspathname"
+ if [ "$namewant" != "$namehave" ]; then
+ echo "FAIL: did set ifalias $namewant but got $namehave"
+ return 1
+ fi
+
+ namewant=$(uuidgen)
+ echo "$namewant" > "$syspathname"
+ ip link show "$devdummy" | grep -q "alias $namewant"
+ check_err $?
+
+ # sysfs interface allows to delete alias again
+ echo "" > "$syspathname"
+
+ ip link show "$devdummy" | grep -q "alias $namewant"
+ check_fail $?
+
+ for i in $(seq 1 100); do
+ uuidgen > "$syspathname" &
+ done
+
+ wait
+
+ # re-add the alias -- kernel should free mem when dummy dev is removed
+ ip link set dev "$devdummy" alias "$namewant"
+ check_err $?
+ fi
+
+ if [ $ret -ne 0 ]; then
+ echo "FAIL: set interface alias $devdummy to $namewant"
+ return 1
+ fi
+
+ echo "PASS: set ifalias $namewant for $devdummy"
+}
+
+kci_test_vrf()
+{
+ vrfname="test-vrf"
+ local ret=0
+
+ ip link show type vrf 2>/dev/null
+ if [ $? -ne 0 ]; then
+ echo "SKIP: vrf: iproute2 too old"
+ return $ksft_skip
+ fi
+
+ ip link add "$vrfname" type vrf table 10
+ check_err $?
+ if [ $ret -ne 0 ];then
+ echo "FAIL: can't add vrf interface, skipping test"
+ return 0
+ fi
+
+ ip -br link show type vrf | grep -q "$vrfname"
+ check_err $?
+ if [ $ret -ne 0 ];then
+ echo "FAIL: created vrf device not found"
+ return 1
+ fi
+
+ ip link set dev "$vrfname" up
+ check_err $?
+
+ ip link set dev "$devdummy" master "$vrfname"
+ check_err $?
+ ip link del dev "$vrfname"
+ check_err $?
+
+ if [ $ret -ne 0 ];then
+ echo "FAIL: vrf"
+ return 1
+ fi
+
+ echo "PASS: vrf"
+}
+
+kci_test_encap_vxlan()
+{
+ local ret=0
+ vxlan="test-vxlan0"
+ vlan="test-vlan0"
+ testns="$1"
+
+ ip -netns "$testns" link add "$vxlan" type vxlan id 42 group 239.1.1.1 \
+ dev "$devdummy" dstport 4789 2>/dev/null
+ if [ $? -ne 0 ]; then
+ echo "FAIL: can't add vxlan interface, skipping test"
+ return 0
+ fi
+ check_err $?
+
+ ip -netns "$testns" addr add 10.2.11.49/24 dev "$vxlan"
+ check_err $?
+
+ ip -netns "$testns" link set up dev "$vxlan"
+ check_err $?
+
+ ip -netns "$testns" link add link "$vxlan" name "$vlan" type vlan id 1
+ check_err $?
+
+ # changelink testcases
+ ip -netns "$testns" link set dev "$vxlan" type vxlan vni 43 2>/dev/null
+ check_fail $?
+
+ ip -netns "$testns" link set dev "$vxlan" type vxlan group ffe5::5 dev "$devdummy" 2>/dev/null
+ check_fail $?
+
+ ip -netns "$testns" link set dev "$vxlan" type vxlan ttl inherit 2>/dev/null
+ check_fail $?
+
+ ip -netns "$testns" link set dev "$vxlan" type vxlan ttl 64
+ check_err $?
+
+ ip -netns "$testns" link set dev "$vxlan" type vxlan nolearning
+ check_err $?
+
+ ip -netns "$testns" link set dev "$vxlan" type vxlan proxy 2>/dev/null
+ check_fail $?
+
+ ip -netns "$testns" link set dev "$vxlan" type vxlan norsc 2>/dev/null
+ check_fail $?
+
+ ip -netns "$testns" link set dev "$vxlan" type vxlan l2miss 2>/dev/null
+ check_fail $?
+
+ ip -netns "$testns" link set dev "$vxlan" type vxlan l3miss 2>/dev/null
+ check_fail $?
+
+ ip -netns "$testns" link set dev "$vxlan" type vxlan external 2>/dev/null
+ check_fail $?
+
+ ip -netns "$testns" link set dev "$vxlan" type vxlan udpcsum 2>/dev/null
+ check_fail $?
+
+ ip -netns "$testns" link set dev "$vxlan" type vxlan udp6zerocsumtx 2>/dev/null
+ check_fail $?
+
+ ip -netns "$testns" link set dev "$vxlan" type vxlan udp6zerocsumrx 2>/dev/null
+ check_fail $?
+
+ ip -netns "$testns" link set dev "$vxlan" type vxlan remcsumtx 2>/dev/null
+ check_fail $?
+
+ ip -netns "$testns" link set dev "$vxlan" type vxlan remcsumrx 2>/dev/null
+ check_fail $?
+
+ ip -netns "$testns" link set dev "$vxlan" type vxlan gbp 2>/dev/null
+ check_fail $?
+
+ ip -netns "$testns" link set dev "$vxlan" type vxlan gpe 2>/dev/null
+ check_fail $?
+
+ ip -netns "$testns" link del "$vxlan"
+ check_err $?
+
+ if [ $ret -ne 0 ]; then
+ echo "FAIL: vxlan"
+ return 1
+ fi
+ echo "PASS: vxlan"
+}
+
+kci_test_encap_fou()
+{
+ local ret=0
+ name="test-fou"
+ testns="$1"
+
+ ip fou help 2>&1 |grep -q 'Usage: ip fou'
+ if [ $? -ne 0 ];then
+ echo "SKIP: fou: iproute2 too old"
+ return $ksft_skip
+ fi
+
+ if ! /sbin/modprobe -q -n fou; then
+ echo "SKIP: module fou is not found"
+ return $ksft_skip
+ fi
+ /sbin/modprobe -q fou
+ ip -netns "$testns" fou add port 7777 ipproto 47 2>/dev/null
+ if [ $? -ne 0 ];then
+ echo "FAIL: can't add fou port 7777, skipping test"
+ return 1
+ fi
+
+ ip -netns "$testns" fou add port 8888 ipproto 4
+ check_err $?
+
+ ip -netns "$testns" fou del port 9999 2>/dev/null
+ check_fail $?
+
+ ip -netns "$testns" fou del port 7777
+ check_err $?
+
+ if [ $ret -ne 0 ]; then
+ echo "FAIL: fou"
+ return 1
+ fi
+
+ echo "PASS: fou"
+}
+
+# test various encap methods, use netns to avoid unwanted interference
+kci_test_encap()
+{
+ testns="testns"
+ local ret=0
+
+ ip netns add "$testns"
+ if [ $? -ne 0 ]; then
+ echo "SKIP encap tests: cannot add net namespace $testns"
+ return $ksft_skip
+ fi
+
+ ip -netns "$testns" link set lo up
+ check_err $?
+
+ ip -netns "$testns" link add name "$devdummy" type dummy
+ check_err $?
+ ip -netns "$testns" link set "$devdummy" up
+ check_err $?
+
+ kci_test_encap_vxlan "$testns"
+ check_err $?
+ kci_test_encap_fou "$testns"
+ check_err $?
+
+ ip netns del "$testns"
+ return $ret
+}
+
+kci_test_macsec()
+{
+ msname="test_macsec0"
+ local ret=0
+
+ ip macsec help 2>&1 | grep -q "^Usage: ip macsec"
+ if [ $? -ne 0 ]; then
+ echo "SKIP: macsec: iproute2 too old"
+ return $ksft_skip
+ fi
+
+ ip link add link "$devdummy" "$msname" type macsec port 42 encrypt on
+ check_err $?
+ if [ $ret -ne 0 ];then
+ echo "FAIL: can't add macsec interface, skipping test"
+ return 1
+ fi
+
+ ip macsec add "$msname" tx sa 0 pn 1024 on key 01 12345678901234567890123456789012
+ check_err $?
+
+ ip macsec add "$msname" rx port 1234 address "1c:ed:de:ad:be:ef"
+ check_err $?
+
+ ip macsec add "$msname" rx port 1234 address "1c:ed:de:ad:be:ef" sa 0 pn 1 on key 00 0123456789abcdef0123456789abcdef
+ check_err $?
+
+ ip macsec show > /dev/null
+ check_err $?
+
+ ip link del dev "$msname"
+ check_err $?
+
+ if [ $ret -ne 0 ];then
+ echo "FAIL: macsec"
+ return 1
+ fi
+
+ echo "PASS: macsec"
+}
+
+#-------------------------------------------------------------------
+# Example commands
+# ip x s add proto esp src 14.0.0.52 dst 14.0.0.70 \
+# spi 0x07 mode transport reqid 0x07 replay-window 32 \
+# aead 'rfc4106(gcm(aes))' 1234567890123456dcba 128 \
+# sel src 14.0.0.52/24 dst 14.0.0.70/24
+# ip x p add dir out src 14.0.0.52/24 dst 14.0.0.70/24 \
+# tmpl proto esp src 14.0.0.52 dst 14.0.0.70 \
+# spi 0x07 mode transport reqid 0x07
+#
+# Subcommands not tested
+# ip x s update
+# ip x s allocspi
+# ip x s deleteall
+# ip x p update
+# ip x p deleteall
+# ip x p set
+#-------------------------------------------------------------------
+kci_test_ipsec()
+{
+ local ret=0
+ algo="aead rfc4106(gcm(aes)) 0x3132333435363738393031323334353664636261 128"
+ srcip=192.168.123.1
+ dstip=192.168.123.2
+ spi=7
+
+ ip addr add $srcip dev $devdummy
+
+ # flush to be sure there's nothing configured
+ ip x s flush ; ip x p flush
+ check_err $?
+
+ # start the monitor in the background
+ tmpfile=`mktemp /var/run/ipsectestXXX`
+ mpid=`(ip x m > $tmpfile & echo $!) 2>/dev/null`
+ sleep 0.2
+
+ ipsecid="proto esp src $srcip dst $dstip spi 0x07"
+ ip x s add $ipsecid \
+ mode transport reqid 0x07 replay-window 32 \
+ $algo sel src $srcip/24 dst $dstip/24
+ check_err $?
+
+ lines=`ip x s list | grep $srcip | grep $dstip | wc -l`
+ test $lines -eq 2
+ check_err $?
+
+ ip x s count | grep -q "SAD count 1"
+ check_err $?
+
+ lines=`ip x s get $ipsecid | grep $srcip | grep $dstip | wc -l`
+ test $lines -eq 2
+ check_err $?
+
+ ip x s delete $ipsecid
+ check_err $?
+
+ lines=`ip x s list | wc -l`
+ test $lines -eq 0
+ check_err $?
+
+ ipsecsel="dir out src $srcip/24 dst $dstip/24"
+ ip x p add $ipsecsel \
+ tmpl proto esp src $srcip dst $dstip \
+ spi 0x07 mode transport reqid 0x07
+ check_err $?
+
+ lines=`ip x p list | grep $srcip | grep $dstip | wc -l`
+ test $lines -eq 2
+ check_err $?
+
+ ip x p count | grep -q "SPD IN 0 OUT 1 FWD 0"
+ check_err $?
+
+ lines=`ip x p get $ipsecsel | grep $srcip | grep $dstip | wc -l`
+ test $lines -eq 2
+ check_err $?
+
+ ip x p delete $ipsecsel
+ check_err $?
+
+ lines=`ip x p list | wc -l`
+ test $lines -eq 0
+ check_err $?
+
+ # check the monitor results
+ kill $mpid
+ lines=`wc -l $tmpfile | cut "-d " -f1`
+ test $lines -eq 20
+ check_err $?
+ rm -rf $tmpfile
+
+ # clean up any leftovers
+ ip x s flush
+ check_err $?
+ ip x p flush
+ check_err $?
+ ip addr del $srcip/32 dev $devdummy
+
+ if [ $ret -ne 0 ]; then
+ echo "FAIL: ipsec"
+ return 1
+ fi
+ echo "PASS: ipsec"
+}
+
+#-------------------------------------------------------------------
+# Example commands
+# ip x s add proto esp src 14.0.0.52 dst 14.0.0.70 \
+# spi 0x07 mode transport reqid 0x07 replay-window 32 \
+# aead 'rfc4106(gcm(aes))' 1234567890123456dcba 128 \
+# sel src 14.0.0.52/24 dst 14.0.0.70/24
+# offload dev sim1 dir out
+# ip x p add dir out src 14.0.0.52/24 dst 14.0.0.70/24 \
+# tmpl proto esp src 14.0.0.52 dst 14.0.0.70 \
+# spi 0x07 mode transport reqid 0x07
+#
+#-------------------------------------------------------------------
+kci_test_ipsec_offload()
+{
+ local ret=0
+ algo="aead rfc4106(gcm(aes)) 0x3132333435363738393031323334353664636261 128"
+ srcip=192.168.123.3
+ dstip=192.168.123.4
+ sysfsd=/sys/kernel/debug/netdevsim/netdevsim0/ports/0/
+ sysfsf=$sysfsd/ipsec
+ sysfsnet=/sys/bus/netdevsim/devices/netdevsim0/net/
+ probed=false
+
+ # setup netdevsim since dummydev doesn't have offload support
+ if [ ! -w /sys/bus/netdevsim/new_device ] ; then
+ modprobe -q netdevsim
+ check_err $?
+ if [ $ret -ne 0 ]; then
+ echo "SKIP: ipsec_offload can't load netdevsim"
+ return $ksft_skip
+ fi
+ probed=true
+ fi
+
+ echo "0" > /sys/bus/netdevsim/new_device
+ while [ ! -d $sysfsnet ] ; do :; done
+ udevadm settle
+ dev=`ls $sysfsnet`
+
+ ip addr add $srcip dev $dev
+ ip link set $dev up
+ if [ ! -d $sysfsd ] ; then
+ echo "FAIL: ipsec_offload can't create device $dev"
+ return 1
+ fi
+ if [ ! -f $sysfsf ] ; then
+ echo "FAIL: ipsec_offload netdevsim doesn't support IPsec offload"
+ return 1
+ fi
+
+ # flush to be sure there's nothing configured
+ ip x s flush ; ip x p flush
+
+ # create offloaded SAs, both in and out
+ ip x p add dir out src $srcip/24 dst $dstip/24 \
+ tmpl proto esp src $srcip dst $dstip spi 9 \
+ mode transport reqid 42
+ check_err $?
+ ip x p add dir in src $dstip/24 dst $srcip/24 \
+ tmpl proto esp src $dstip dst $srcip spi 9 \
+ mode transport reqid 42
+ check_err $?
+
+ ip x s add proto esp src $srcip dst $dstip spi 9 \
+ mode transport reqid 42 $algo sel src $srcip/24 dst $dstip/24 \
+ offload dev $dev dir out
+ check_err $?
+ ip x s add proto esp src $dstip dst $srcip spi 9 \
+ mode transport reqid 42 $algo sel src $dstip/24 dst $srcip/24 \
+ offload dev $dev dir in
+ check_err $?
+ if [ $ret -ne 0 ]; then
+ echo "FAIL: ipsec_offload can't create SA"
+ return 1
+ fi
+
+ # does offload show up in ip output
+ lines=`ip x s list | grep -c "crypto offload parameters: dev $dev dir"`
+ if [ $lines -ne 2 ] ; then
+ echo "FAIL: ipsec_offload SA offload missing from list output"
+ check_err 1
+ fi
+
+ # use ping to exercise the Tx path
+ ping -I $dev -c 3 -W 1 -i 0 $dstip >/dev/null
+
+ # does driver have correct offload info
+ diff $sysfsf - << EOF
+SA count=2 tx=3
+sa[0] tx ipaddr=0x00000000 00000000 00000000 00000000
+sa[0] spi=0x00000009 proto=0x32 salt=0x61626364 crypt=1
+sa[0] key=0x34333231 38373635 32313039 36353433
+sa[1] rx ipaddr=0x00000000 00000000 00000000 037ba8c0
+sa[1] spi=0x00000009 proto=0x32 salt=0x61626364 crypt=1
+sa[1] key=0x34333231 38373635 32313039 36353433
+EOF
+ if [ $? -ne 0 ] ; then
+ echo "FAIL: ipsec_offload incorrect driver data"
+ check_err 1
+ fi
+
+ # does offload get removed from driver
+ ip x s flush
+ ip x p flush
+ lines=`grep -c "SA count=0" $sysfsf`
+ if [ $lines -ne 1 ] ; then
+ echo "FAIL: ipsec_offload SA not removed from driver"
+ check_err 1
+ fi
+
+ # clean up any leftovers
+ echo 0 > /sys/bus/netdevsim/del_device
+ $probed && rmmod netdevsim
+
+ if [ $ret -ne 0 ]; then
+ echo "FAIL: ipsec_offload"
+ return 1
+ fi
+ echo "PASS: ipsec_offload"
+}
+
+kci_test_gretap()
+{
+ testns="testns"
+ DEV_NS=gretap00
+ local ret=0
+
+ ip netns add "$testns"
+ if [ $? -ne 0 ]; then
+ echo "SKIP gretap tests: cannot add net namespace $testns"
+ return $ksft_skip
+ fi
+
+ ip link help gretap 2>&1 | grep -q "^Usage:"
+ if [ $? -ne 0 ];then
+ echo "SKIP: gretap: iproute2 too old"
+ ip netns del "$testns"
+ return $ksft_skip
+ fi
+
+ # test native tunnel
+ ip -netns "$testns" link add dev "$DEV_NS" type gretap seq \
+ key 102 local 172.16.1.100 remote 172.16.1.200
+ check_err $?
+
+ ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24
+ check_err $?
+
+ ip -netns "$testns" link set dev $DEV_NS up
+ check_err $?
+
+ ip -netns "$testns" link del "$DEV_NS"
+ check_err $?
+
+ # test external mode
+ ip -netns "$testns" link add dev "$DEV_NS" type gretap external
+ check_err $?
+
+ ip -netns "$testns" link del "$DEV_NS"
+ check_err $?
+
+ if [ $ret -ne 0 ]; then
+ echo "FAIL: gretap"
+ ip netns del "$testns"
+ return 1
+ fi
+ echo "PASS: gretap"
+
+ ip netns del "$testns"
+}
+
+kci_test_ip6gretap()
+{
+ testns="testns"
+ DEV_NS=ip6gretap00
+ local ret=0
+
+ ip netns add "$testns"
+ if [ $? -ne 0 ]; then
+ echo "SKIP ip6gretap tests: cannot add net namespace $testns"
+ return $ksft_skip
+ fi
+
+ ip link help ip6gretap 2>&1 | grep -q "^Usage:"
+ if [ $? -ne 0 ];then
+ echo "SKIP: ip6gretap: iproute2 too old"
+ ip netns del "$testns"
+ return $ksft_skip
+ fi
+
+ # test native tunnel
+ ip -netns "$testns" link add dev "$DEV_NS" type ip6gretap seq \
+ key 102 local fc00:100::1 remote fc00:100::2
+ check_err $?
+
+ ip -netns "$testns" addr add dev "$DEV_NS" fc00:200::1/96
+ check_err $?
+
+ ip -netns "$testns" link set dev $DEV_NS up
+ check_err $?
+
+ ip -netns "$testns" link del "$DEV_NS"
+ check_err $?
+
+ # test external mode
+ ip -netns "$testns" link add dev "$DEV_NS" type ip6gretap external
+ check_err $?
+
+ ip -netns "$testns" link del "$DEV_NS"
+ check_err $?
+
+ if [ $ret -ne 0 ]; then
+ echo "FAIL: ip6gretap"
+ ip netns del "$testns"
+ return 1
+ fi
+ echo "PASS: ip6gretap"
+
+ ip netns del "$testns"
+}
+
+kci_test_erspan()
+{
+ testns="testns"
+ DEV_NS=erspan00
+ local ret=0
+
+ ip link help erspan 2>&1 | grep -q "^Usage:"
+ if [ $? -ne 0 ];then
+ echo "SKIP: erspan: iproute2 too old"
+ return $ksft_skip
+ fi
+
+ ip netns add "$testns"
+ if [ $? -ne 0 ]; then
+ echo "SKIP erspan tests: cannot add net namespace $testns"
+ return $ksft_skip
+ fi
+
+ # test native tunnel erspan v1
+ ip -netns "$testns" link add dev "$DEV_NS" type erspan seq \
+ key 102 local 172.16.1.100 remote 172.16.1.200 \
+ erspan_ver 1 erspan 488
+ check_err $?
+
+ ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24
+ check_err $?
+
+ ip -netns "$testns" link set dev $DEV_NS up
+ check_err $?
+
+ ip -netns "$testns" link del "$DEV_NS"
+ check_err $?
+
+ # test native tunnel erspan v2
+ ip -netns "$testns" link add dev "$DEV_NS" type erspan seq \
+ key 102 local 172.16.1.100 remote 172.16.1.200 \
+ erspan_ver 2 erspan_dir ingress erspan_hwid 7
+ check_err $?
+
+ ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24
+ check_err $?
+
+ ip -netns "$testns" link set dev $DEV_NS up
+ check_err $?
+
+ ip -netns "$testns" link del "$DEV_NS"
+ check_err $?
+
+ # test external mode
+ ip -netns "$testns" link add dev "$DEV_NS" type erspan external
+ check_err $?
+
+ ip -netns "$testns" link del "$DEV_NS"
+ check_err $?
+
+ if [ $ret -ne 0 ]; then
+ echo "FAIL: erspan"
+ ip netns del "$testns"
+ return 1
+ fi
+ echo "PASS: erspan"
+
+ ip netns del "$testns"
+}
+
+kci_test_ip6erspan()
+{
+ testns="testns"
+ DEV_NS=ip6erspan00
+ local ret=0
+
+ ip link help ip6erspan 2>&1 | grep -q "^Usage:"
+ if [ $? -ne 0 ];then
+ echo "SKIP: ip6erspan: iproute2 too old"
+ return $ksft_skip
+ fi
+
+ ip netns add "$testns"
+ if [ $? -ne 0 ]; then
+ echo "SKIP ip6erspan tests: cannot add net namespace $testns"
+ return $ksft_skip
+ fi
+
+ # test native tunnel ip6erspan v1
+ ip -netns "$testns" link add dev "$DEV_NS" type ip6erspan seq \
+ key 102 local fc00:100::1 remote fc00:100::2 \
+ erspan_ver 1 erspan 488
+ check_err $?
+
+ ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24
+ check_err $?
+
+ ip -netns "$testns" link set dev $DEV_NS up
+ check_err $?
+
+ ip -netns "$testns" link del "$DEV_NS"
+ check_err $?
+
+ # test native tunnel ip6erspan v2
+ ip -netns "$testns" link add dev "$DEV_NS" type ip6erspan seq \
+ key 102 local fc00:100::1 remote fc00:100::2 \
+ erspan_ver 2 erspan_dir ingress erspan_hwid 7
+ check_err $?
+
+ ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24
+ check_err $?
+
+ ip -netns "$testns" link set dev $DEV_NS up
+ check_err $?
+
+ ip -netns "$testns" link del "$DEV_NS"
+ check_err $?
+
+ # test external mode
+ ip -netns "$testns" link add dev "$DEV_NS" \
+ type ip6erspan external
+ check_err $?
+
+ ip -netns "$testns" link del "$DEV_NS"
+ check_err $?
+
+ if [ $ret -ne 0 ]; then
+ echo "FAIL: ip6erspan"
+ ip netns del "$testns"
+ return 1
+ fi
+ echo "PASS: ip6erspan"
+
+ ip netns del "$testns"
+}
+
+kci_test_fdb_get()
+{
+ IP="ip -netns testns"
+ BRIDGE="bridge -netns testns"
+ brdev="test-br0"
+ vxlandev="vxlan10"
+ test_mac=de:ad:be:ef:13:37
+ localip="10.0.2.2"
+ dstip="10.0.2.3"
+ local ret=0
+
+ bridge fdb help 2>&1 |grep -q 'bridge fdb get'
+ if [ $? -ne 0 ];then
+ echo "SKIP: fdb get tests: iproute2 too old"
+ return $ksft_skip
+ fi
+
+ ip netns add testns
+ if [ $? -ne 0 ]; then
+ echo "SKIP fdb get tests: cannot add net namespace $testns"
+ return $ksft_skip
+ fi
+
+ $IP link add "$vxlandev" type vxlan id 10 local $localip \
+ dstport 4789 2>/dev/null
+ check_err $?
+ $IP link add name "$brdev" type bridge &>/dev/null
+ check_err $?
+ $IP link set dev "$vxlandev" master "$brdev" &>/dev/null
+ check_err $?
+ $BRIDGE fdb add $test_mac dev "$vxlandev" master &>/dev/null
+ check_err $?
+ $BRIDGE fdb add $test_mac dev "$vxlandev" dst $dstip self &>/dev/null
+ check_err $?
+
+ $BRIDGE fdb get $test_mac brport "$vxlandev" 2>/dev/null | grep -q "dev $vxlandev master $brdev"
+ check_err $?
+ $BRIDGE fdb get $test_mac br "$brdev" 2>/dev/null | grep -q "dev $vxlandev master $brdev"
+ check_err $?
+ $BRIDGE fdb get $test_mac dev "$vxlandev" self 2>/dev/null | grep -q "dev $vxlandev dst $dstip"
+ check_err $?
+
+ ip netns del testns &>/dev/null
+
+ if [ $ret -ne 0 ]; then
+ echo "FAIL: bridge fdb get"
+ return 1
+ fi
+
+ echo "PASS: bridge fdb get"
+}
+
+kci_test_neigh_get()
+{
+ dstmac=de:ad:be:ef:13:37
+ dstip=10.0.2.4
+ dstip6=dead::2
+ local ret=0
+
+ ip neigh help 2>&1 |grep -q 'ip neigh get'
+ if [ $? -ne 0 ];then
+ echo "SKIP: fdb get tests: iproute2 too old"
+ return $ksft_skip
+ fi
+
+ # ipv4
+ ip neigh add $dstip lladdr $dstmac dev "$devdummy" > /dev/null
+ check_err $?
+ ip neigh get $dstip dev "$devdummy" 2> /dev/null | grep -q "$dstmac"
+ check_err $?
+ ip neigh del $dstip lladdr $dstmac dev "$devdummy" > /dev/null
+ check_err $?
+
+ # ipv4 proxy
+ ip neigh add proxy $dstip dev "$devdummy" > /dev/null
+ check_err $?
+ ip neigh get proxy $dstip dev "$devdummy" 2>/dev/null | grep -q "$dstip"
+ check_err $?
+ ip neigh del proxy $dstip dev "$devdummy" > /dev/null
+ check_err $?
+
+ # ipv6
+ ip neigh add $dstip6 lladdr $dstmac dev "$devdummy" > /dev/null
+ check_err $?
+ ip neigh get $dstip6 dev "$devdummy" 2> /dev/null | grep -q "$dstmac"
+ check_err $?
+ ip neigh del $dstip6 lladdr $dstmac dev "$devdummy" > /dev/null
+ check_err $?
+
+ # ipv6 proxy
+ ip neigh add proxy $dstip6 dev "$devdummy" > /dev/null
+ check_err $?
+ ip neigh get proxy $dstip6 dev "$devdummy" 2>/dev/null | grep -q "$dstip6"
+ check_err $?
+ ip neigh del proxy $dstip6 dev "$devdummy" > /dev/null
+ check_err $?
+
+ if [ $ret -ne 0 ];then
+ echo "FAIL: neigh get"
+ return 1
+ fi
+
+ echo "PASS: neigh get"
+}
+
+kci_test_bridge_parent_id()
+{
+ local ret=0
+ sysfsnet=/sys/bus/netdevsim/devices/netdevsim
+ probed=false
+
+ if [ ! -w /sys/bus/netdevsim/new_device ] ; then
+ modprobe -q netdevsim
+ check_err $?
+ if [ $ret -ne 0 ]; then
+ echo "SKIP: bridge_parent_id can't load netdevsim"
+ return $ksft_skip
+ fi
+ probed=true
+ fi
+
+ echo "10 1" > /sys/bus/netdevsim/new_device
+ while [ ! -d ${sysfsnet}10 ] ; do :; done
+ echo "20 1" > /sys/bus/netdevsim/new_device
+ while [ ! -d ${sysfsnet}20 ] ; do :; done
+ udevadm settle
+ dev10=`ls ${sysfsnet}10/net/`
+ dev20=`ls ${sysfsnet}20/net/`
+
+ ip link add name test-bond0 type bond mode 802.3ad
+ ip link set dev $dev10 master test-bond0
+ ip link set dev $dev20 master test-bond0
+ ip link add name test-br0 type bridge
+ ip link set dev test-bond0 master test-br0
+ check_err $?
+
+ # clean up any leftovers
+ ip link del dev test-br0
+ ip link del dev test-bond0
+ echo 20 > /sys/bus/netdevsim/del_device
+ echo 10 > /sys/bus/netdevsim/del_device
+ $probed && rmmod netdevsim
+
+ if [ $ret -ne 0 ]; then
+ echo "FAIL: bridge_parent_id"
+ return 1
+ fi
+ echo "PASS: bridge_parent_id"
+}
+
+kci_test_rtnl()
+{
+ local ret=0
+ kci_add_dummy
+ if [ $ret -ne 0 ];then
+ echo "FAIL: cannot add dummy interface"
+ return 1
+ fi
+
+ kci_test_polrouting
+ check_err $?
+ kci_test_route_get
+ check_err $?
+ kci_test_addrlft
+ check_err $?
+ kci_test_promote_secondaries
+ check_err $?
+ kci_test_tc
+ check_err $?
+ kci_test_gre
+ check_err $?
+ kci_test_gretap
+ check_err $?
+ kci_test_ip6gretap
+ check_err $?
+ kci_test_erspan
+ check_err $?
+ kci_test_ip6erspan
+ check_err $?
+ kci_test_bridge
+ check_err $?
+ kci_test_addrlabel
+ check_err $?
+ kci_test_ifalias
+ check_err $?
+ kci_test_vrf
+ check_err $?
+ kci_test_encap
+ check_err $?
+ kci_test_macsec
+ check_err $?
+ kci_test_ipsec
+ check_err $?
+ kci_test_ipsec_offload
+ check_err $?
+ kci_test_fdb_get
+ check_err $?
+ kci_test_neigh_get
+ check_err $?
+ kci_test_bridge_parent_id
+ check_err $?
+
+ kci_del_dummy
+ return $ret
+}
+
+#check for needed privileges
+if [ "$(id -u)" -ne 0 ];then
+ echo "SKIP: Need root privileges"
+ exit $ksft_skip
+fi
+
+for x in ip tc;do
+ $x -Version 2>/dev/null >/dev/null
+ if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without the $x tool"
+ exit $ksft_skip
+ fi
+done
+
+kci_test_rtnl
+
+exit $?
diff --git a/tools/testing/selftests/net/run_afpackettests b/tools/testing/selftests/net/run_afpackettests
new file mode 100755
index 000000000..8b42e8b04
--- /dev/null
+++ b/tools/testing/selftests/net/run_afpackettests
@@ -0,0 +1,46 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+if [ $(id -u) != 0 ]; then
+ echo $msg must be run as root >&2
+ exit 0
+fi
+
+ret=0
+echo "--------------------"
+echo "running psock_fanout test"
+echo "--------------------"
+./in_netns.sh ./psock_fanout
+if [ $? -ne 0 ]; then
+ echo "[FAIL]"
+ ret=1
+else
+ echo "[PASS]"
+fi
+
+echo "--------------------"
+echo "running psock_tpacket test"
+echo "--------------------"
+if [ -f /proc/kallsyms ]; then
+ ./in_netns.sh ./psock_tpacket
+ if [ $? -ne 0 ]; then
+ echo "[FAIL]"
+ ret=1
+ else
+ echo "[PASS]"
+ fi
+else
+ echo "[SKIP] CONFIG_KALLSYMS not enabled"
+fi
+
+echo "--------------------"
+echo "running txring_overwrite test"
+echo "--------------------"
+./in_netns.sh ./txring_overwrite
+if [ $? -ne 0 ]; then
+ echo "[FAIL]"
+ ret=1
+else
+ echo "[PASS]"
+fi
+exit $ret
diff --git a/tools/testing/selftests/net/run_netsocktests b/tools/testing/selftests/net/run_netsocktests
new file mode 100755
index 000000000..14e41faf2
--- /dev/null
+++ b/tools/testing/selftests/net/run_netsocktests
@@ -0,0 +1,13 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+echo "--------------------"
+echo "running socket test"
+echo "--------------------"
+./socket
+if [ $? -ne 0 ]; then
+ echo "[FAIL]"
+ exit 1
+else
+ echo "[PASS]"
+fi
diff --git a/tools/testing/selftests/net/rxtimestamp.c b/tools/testing/selftests/net/rxtimestamp.c
new file mode 100644
index 000000000..e4613ce4e
--- /dev/null
+++ b/tools/testing/selftests/net/rxtimestamp.c
@@ -0,0 +1,430 @@
+#include <errno.h>
+#include <error.h>
+#include <getopt.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <sys/select.h>
+#include <sys/ioctl.h>
+#include <arpa/inet.h>
+#include <net/if.h>
+
+#include <asm/types.h>
+#include <linux/net_tstamp.h>
+#include <linux/errqueue.h>
+
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+
+struct options {
+ int so_timestamp;
+ int so_timestampns;
+ int so_timestamping;
+};
+
+struct tstamps {
+ bool tstamp;
+ bool tstampns;
+ bool swtstamp;
+ bool hwtstamp;
+};
+
+struct socket_type {
+ char *friendly_name;
+ int type;
+ int protocol;
+ bool enabled;
+};
+
+struct test_case {
+ struct options sockopt;
+ struct tstamps expected;
+ bool enabled;
+ bool warn_on_fail;
+};
+
+struct sof_flag {
+ int mask;
+ char *name;
+};
+
+static struct sof_flag sof_flags[] = {
+#define SOF_FLAG(f) { f, #f }
+ SOF_FLAG(SOF_TIMESTAMPING_SOFTWARE),
+ SOF_FLAG(SOF_TIMESTAMPING_RX_SOFTWARE),
+ SOF_FLAG(SOF_TIMESTAMPING_RX_HARDWARE),
+};
+
+static struct socket_type socket_types[] = {
+ { "ip", SOCK_RAW, IPPROTO_EGP },
+ { "udp", SOCK_DGRAM, IPPROTO_UDP },
+ { "tcp", SOCK_STREAM, IPPROTO_TCP },
+};
+
+static struct test_case test_cases[] = {
+ { {}, {} },
+ {
+ { .so_timestamp = 1 },
+ { .tstamp = true }
+ },
+ {
+ { .so_timestampns = 1 },
+ { .tstampns = true }
+ },
+ {
+ { .so_timestamp = 1, .so_timestampns = 1 },
+ { .tstampns = true }
+ },
+ {
+ { .so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE },
+ {}
+ },
+ {
+ /* Loopback device does not support hw timestamps. */
+ { .so_timestamping = SOF_TIMESTAMPING_RX_HARDWARE },
+ {}
+ },
+ {
+ { .so_timestamping = SOF_TIMESTAMPING_SOFTWARE },
+ .warn_on_fail = true
+ },
+ {
+ { .so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE
+ | SOF_TIMESTAMPING_RX_HARDWARE },
+ {}
+ },
+ {
+ { .so_timestamping = SOF_TIMESTAMPING_SOFTWARE
+ | SOF_TIMESTAMPING_RX_SOFTWARE },
+ { .swtstamp = true }
+ },
+ {
+ { .so_timestamp = 1, .so_timestamping = SOF_TIMESTAMPING_SOFTWARE
+ | SOF_TIMESTAMPING_RX_SOFTWARE },
+ { .tstamp = true, .swtstamp = true }
+ },
+};
+
+static struct option long_options[] = {
+ { "list_tests", no_argument, 0, 'l' },
+ { "test_num", required_argument, 0, 'n' },
+ { "op_size", required_argument, 0, 's' },
+ { "tcp", no_argument, 0, 't' },
+ { "udp", no_argument, 0, 'u' },
+ { "ip", no_argument, 0, 'i' },
+ { "strict", no_argument, 0, 'S' },
+ { "ipv4", no_argument, 0, '4' },
+ { "ipv6", no_argument, 0, '6' },
+ { NULL, 0, NULL, 0 },
+};
+
+static int next_port = 19999;
+static int op_size = 10 * 1024;
+
+void print_test_case(struct test_case *t)
+{
+ int f = 0;
+
+ printf("sockopts {");
+ if (t->sockopt.so_timestamp)
+ printf(" SO_TIMESTAMP ");
+ if (t->sockopt.so_timestampns)
+ printf(" SO_TIMESTAMPNS ");
+ if (t->sockopt.so_timestamping) {
+ printf(" SO_TIMESTAMPING: {");
+ for (f = 0; f < ARRAY_SIZE(sof_flags); f++)
+ if (t->sockopt.so_timestamping & sof_flags[f].mask)
+ printf(" %s |", sof_flags[f].name);
+ printf("}");
+ }
+ printf("} expected cmsgs: {");
+ if (t->expected.tstamp)
+ printf(" SCM_TIMESTAMP ");
+ if (t->expected.tstampns)
+ printf(" SCM_TIMESTAMPNS ");
+ if (t->expected.swtstamp || t->expected.hwtstamp) {
+ printf(" SCM_TIMESTAMPING {");
+ if (t->expected.swtstamp)
+ printf("0");
+ if (t->expected.swtstamp && t->expected.hwtstamp)
+ printf(",");
+ if (t->expected.hwtstamp)
+ printf("2");
+ printf("}");
+ }
+ printf("}\n");
+}
+
+void do_send(int src)
+{
+ int r;
+ char *buf = malloc(op_size);
+
+ memset(buf, 'z', op_size);
+ r = write(src, buf, op_size);
+ if (r < 0)
+ error(1, errno, "Failed to sendmsg");
+
+ free(buf);
+}
+
+bool do_recv(int rcv, int read_size, struct tstamps expected)
+{
+ const int CMSG_SIZE = 1024;
+
+ struct scm_timestamping *ts;
+ struct tstamps actual = {};
+ char cmsg_buf[CMSG_SIZE];
+ struct iovec recv_iov;
+ struct cmsghdr *cmsg;
+ bool failed = false;
+ struct msghdr hdr;
+ int flags = 0;
+ int r;
+
+ memset(&hdr, 0, sizeof(hdr));
+ hdr.msg_iov = &recv_iov;
+ hdr.msg_iovlen = 1;
+ recv_iov.iov_base = malloc(read_size);
+ recv_iov.iov_len = read_size;
+
+ hdr.msg_control = cmsg_buf;
+ hdr.msg_controllen = sizeof(cmsg_buf);
+
+ r = recvmsg(rcv, &hdr, flags);
+ if (r < 0)
+ error(1, errno, "Failed to recvmsg");
+ if (r != read_size)
+ error(1, 0, "Only received %d bytes of payload.", r);
+
+ if (hdr.msg_flags & (MSG_TRUNC | MSG_CTRUNC))
+ error(1, 0, "Message was truncated.");
+
+ for (cmsg = CMSG_FIRSTHDR(&hdr); cmsg != NULL;
+ cmsg = CMSG_NXTHDR(&hdr, cmsg)) {
+ if (cmsg->cmsg_level != SOL_SOCKET)
+ error(1, 0, "Unexpected cmsg_level %d",
+ cmsg->cmsg_level);
+ switch (cmsg->cmsg_type) {
+ case SCM_TIMESTAMP:
+ actual.tstamp = true;
+ break;
+ case SCM_TIMESTAMPNS:
+ actual.tstampns = true;
+ break;
+ case SCM_TIMESTAMPING:
+ ts = (struct scm_timestamping *)CMSG_DATA(cmsg);
+ actual.swtstamp = !!ts->ts[0].tv_sec;
+ if (ts->ts[1].tv_sec != 0)
+ error(0, 0, "ts[1] should not be set.");
+ actual.hwtstamp = !!ts->ts[2].tv_sec;
+ break;
+ default:
+ error(1, 0, "Unexpected cmsg_type %d", cmsg->cmsg_type);
+ }
+ }
+
+#define VALIDATE(field) \
+ do { \
+ if (expected.field != actual.field) { \
+ if (expected.field) \
+ error(0, 0, "Expected " #field " to be set."); \
+ else \
+ error(0, 0, \
+ "Expected " #field " to not be set."); \
+ failed = true; \
+ } \
+ } while (0)
+
+ VALIDATE(tstamp);
+ VALIDATE(tstampns);
+ VALIDATE(swtstamp);
+ VALIDATE(hwtstamp);
+#undef VALIDATE
+
+ free(recv_iov.iov_base);
+
+ return failed;
+}
+
+void config_so_flags(int rcv, struct options o)
+{
+ int on = 1;
+
+ if (setsockopt(rcv, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) < 0)
+ error(1, errno, "Failed to enable SO_REUSEADDR");
+
+ if (o.so_timestamp &&
+ setsockopt(rcv, SOL_SOCKET, SO_TIMESTAMP,
+ &o.so_timestamp, sizeof(o.so_timestamp)) < 0)
+ error(1, errno, "Failed to enable SO_TIMESTAMP");
+
+ if (o.so_timestampns &&
+ setsockopt(rcv, SOL_SOCKET, SO_TIMESTAMPNS,
+ &o.so_timestampns, sizeof(o.so_timestampns)) < 0)
+ error(1, errno, "Failed to enable SO_TIMESTAMPNS");
+
+ if (o.so_timestamping &&
+ setsockopt(rcv, SOL_SOCKET, SO_TIMESTAMPING,
+ &o.so_timestamping, sizeof(o.so_timestamping)) < 0)
+ error(1, errno, "Failed to set SO_TIMESTAMPING");
+}
+
+bool run_test_case(struct socket_type *s, int test_num, char ip_version,
+ bool strict)
+{
+ union {
+ struct sockaddr_in6 addr6;
+ struct sockaddr_in addr4;
+ struct sockaddr addr_un;
+ } addr;
+ int read_size = op_size;
+ int src, dst, rcv, port;
+ socklen_t addr_size;
+ bool failed = false;
+
+ port = (s->type == SOCK_RAW) ? 0 : next_port++;
+ memset(&addr, 0, sizeof(addr));
+ if (ip_version == '4') {
+ addr.addr4.sin_family = AF_INET;
+ addr.addr4.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+ addr.addr4.sin_port = htons(port);
+ addr_size = sizeof(addr.addr4);
+ if (s->type == SOCK_RAW)
+ read_size += 20; /* for IPv4 header */
+ } else {
+ addr.addr6.sin6_family = AF_INET6;
+ addr.addr6.sin6_addr = in6addr_loopback;
+ addr.addr6.sin6_port = htons(port);
+ addr_size = sizeof(addr.addr6);
+ }
+ printf("Starting testcase %d over ipv%c...\n", test_num, ip_version);
+ src = socket(addr.addr_un.sa_family, s->type,
+ s->protocol);
+ if (src < 0)
+ error(1, errno, "Failed to open src socket");
+
+ dst = socket(addr.addr_un.sa_family, s->type,
+ s->protocol);
+ if (dst < 0)
+ error(1, errno, "Failed to open dst socket");
+
+ if (bind(dst, &addr.addr_un, addr_size) < 0)
+ error(1, errno, "Failed to bind to port %d", port);
+
+ if (s->type == SOCK_STREAM && (listen(dst, 1) < 0))
+ error(1, errno, "Failed to listen");
+
+ if (connect(src, &addr.addr_un, addr_size) < 0)
+ error(1, errno, "Failed to connect");
+
+ if (s->type == SOCK_STREAM) {
+ rcv = accept(dst, NULL, NULL);
+ if (rcv < 0)
+ error(1, errno, "Failed to accept");
+ close(dst);
+ } else {
+ rcv = dst;
+ }
+
+ config_so_flags(rcv, test_cases[test_num].sockopt);
+ usleep(20000); /* setsockopt for SO_TIMESTAMPING is asynchronous */
+ do_send(src);
+
+ failed = do_recv(rcv, read_size, test_cases[test_num].expected);
+
+ close(rcv);
+ close(src);
+
+ if (failed) {
+ printf("FAILURE in testcase %d over ipv%c ", test_num,
+ ip_version);
+ print_test_case(&test_cases[test_num]);
+ if (!strict && test_cases[test_num].warn_on_fail)
+ failed = false;
+ }
+ return failed;
+}
+
+int main(int argc, char **argv)
+{
+ bool all_protocols = true;
+ bool all_tests = true;
+ bool cfg_ipv4 = false;
+ bool cfg_ipv6 = false;
+ bool strict = false;
+ int arg_index = 0;
+ int failures = 0;
+ int s, t, opt;
+
+ while ((opt = getopt_long(argc, argv, "", long_options,
+ &arg_index)) != -1) {
+ switch (opt) {
+ case 'l':
+ for (t = 0; t < ARRAY_SIZE(test_cases); t++) {
+ printf("%d\t", t);
+ print_test_case(&test_cases[t]);
+ }
+ return 0;
+ case 'n':
+ t = atoi(optarg);
+ if (t >= ARRAY_SIZE(test_cases))
+ error(1, 0, "Invalid test case: %d", t);
+ all_tests = false;
+ test_cases[t].enabled = true;
+ break;
+ case 's':
+ op_size = atoi(optarg);
+ break;
+ case 't':
+ all_protocols = false;
+ socket_types[2].enabled = true;
+ break;
+ case 'u':
+ all_protocols = false;
+ socket_types[1].enabled = true;
+ break;
+ case 'i':
+ all_protocols = false;
+ socket_types[0].enabled = true;
+ break;
+ case 'S':
+ strict = true;
+ break;
+ case '4':
+ cfg_ipv4 = true;
+ break;
+ case '6':
+ cfg_ipv6 = true;
+ break;
+ default:
+ error(1, 0, "Failed to parse parameters.");
+ }
+ }
+
+ for (s = 0; s < ARRAY_SIZE(socket_types); s++) {
+ if (!all_protocols && !socket_types[s].enabled)
+ continue;
+
+ printf("Testing %s...\n", socket_types[s].friendly_name);
+ for (t = 0; t < ARRAY_SIZE(test_cases); t++) {
+ if (!all_tests && !test_cases[t].enabled)
+ continue;
+ if (cfg_ipv4 || !cfg_ipv6)
+ if (run_test_case(&socket_types[s], t, '4',
+ strict))
+ failures++;
+ if (cfg_ipv6 || !cfg_ipv4)
+ if (run_test_case(&socket_types[s], t, '6',
+ strict))
+ failures++;
+ }
+ }
+ if (!failures)
+ printf("PASSED.\n");
+ return failures;
+}
diff --git a/tools/testing/selftests/net/rxtimestamp.sh b/tools/testing/selftests/net/rxtimestamp.sh
new file mode 100755
index 000000000..91631e88b
--- /dev/null
+++ b/tools/testing/selftests/net/rxtimestamp.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+./in_netns.sh ./rxtimestamp $@
diff --git a/tools/testing/selftests/net/so_txtime.c b/tools/testing/selftests/net/so_txtime.c
new file mode 100644
index 000000000..3155fbbf6
--- /dev/null
+++ b/tools/testing/selftests/net/so_txtime.c
@@ -0,0 +1,393 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test the SO_TXTIME API
+ *
+ * Takes two streams of { payload, delivery time }[], one input and one output.
+ * Sends the input stream and verifies arrival matches the output stream.
+ * The two streams can differ due to out-of-order delivery and drops.
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <error.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <linux/net_tstamp.h>
+#include <linux/errqueue.h>
+#include <linux/if_ether.h>
+#include <linux/ipv6.h>
+#include <linux/udp.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <time.h>
+#include <unistd.h>
+
+static int cfg_clockid = CLOCK_TAI;
+static bool cfg_do_ipv4;
+static bool cfg_do_ipv6;
+static uint16_t cfg_port = 8000;
+static int cfg_variance_us = 4000;
+
+static uint64_t glob_tstart;
+
+/* encode one timed transmission (of a 1B payload) */
+struct timed_send {
+ char data;
+ int64_t delay_us;
+};
+
+#define MAX_NUM_PKT 8
+static struct timed_send cfg_in[MAX_NUM_PKT];
+static struct timed_send cfg_out[MAX_NUM_PKT];
+static int cfg_num_pkt;
+
+static int cfg_errq_level;
+static int cfg_errq_type;
+
+static uint64_t gettime_ns(void)
+{
+ struct timespec ts;
+
+ if (clock_gettime(cfg_clockid, &ts))
+ error(1, errno, "gettime");
+
+ return ts.tv_sec * (1000ULL * 1000 * 1000) + ts.tv_nsec;
+}
+
+static void do_send_one(int fdt, struct timed_send *ts)
+{
+ char control[CMSG_SPACE(sizeof(uint64_t))];
+ struct msghdr msg = {0};
+ struct iovec iov = {0};
+ struct cmsghdr *cm;
+ uint64_t tdeliver;
+ int ret;
+
+ iov.iov_base = &ts->data;
+ iov.iov_len = 1;
+
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+
+ if (ts->delay_us >= 0) {
+ memset(control, 0, sizeof(control));
+ msg.msg_control = &control;
+ msg.msg_controllen = sizeof(control);
+
+ tdeliver = glob_tstart + ts->delay_us * 1000;
+
+ cm = CMSG_FIRSTHDR(&msg);
+ cm->cmsg_level = SOL_SOCKET;
+ cm->cmsg_type = SCM_TXTIME;
+ cm->cmsg_len = CMSG_LEN(sizeof(tdeliver));
+ memcpy(CMSG_DATA(cm), &tdeliver, sizeof(tdeliver));
+ }
+
+ ret = sendmsg(fdt, &msg, 0);
+ if (ret == -1)
+ error(1, errno, "write");
+ if (ret == 0)
+ error(1, 0, "write: 0B");
+
+}
+
+static bool do_recv_one(int fdr, struct timed_send *ts)
+{
+ int64_t tstop, texpect;
+ char rbuf[2];
+ int ret;
+
+ ret = recv(fdr, rbuf, sizeof(rbuf), 0);
+ if (ret == -1 && errno == EAGAIN)
+ return true;
+ if (ret == -1)
+ error(1, errno, "read");
+ if (ret != 1)
+ error(1, 0, "read: %dB", ret);
+
+ tstop = (gettime_ns() - glob_tstart) / 1000;
+ texpect = ts->delay_us >= 0 ? ts->delay_us : 0;
+
+ fprintf(stderr, "payload:%c delay:%lld expected:%lld (us)\n",
+ rbuf[0], (long long)tstop, (long long)texpect);
+
+ if (rbuf[0] != ts->data)
+ error(1, 0, "payload mismatch. expected %c", ts->data);
+
+ if (llabs(tstop - texpect) > cfg_variance_us)
+ error(1, 0, "exceeds variance (%d us)", cfg_variance_us);
+
+ return false;
+}
+
+static void do_recv_verify_empty(int fdr)
+{
+ char rbuf[1];
+ int ret;
+
+ ret = recv(fdr, rbuf, sizeof(rbuf), 0);
+ if (ret != -1 || errno != EAGAIN)
+ error(1, 0, "recv: not empty as expected (%d, %d)", ret, errno);
+}
+
+static void do_recv_errqueue_timeout(int fdt)
+{
+ char control[CMSG_SPACE(sizeof(struct sock_extended_err)) +
+ CMSG_SPACE(sizeof(struct sockaddr_in6))] = {0};
+ char data[sizeof(struct ethhdr) + sizeof(struct ipv6hdr) +
+ sizeof(struct udphdr) + 1];
+ struct sock_extended_err *err;
+ struct msghdr msg = {0};
+ struct iovec iov = {0};
+ struct cmsghdr *cm;
+ int64_t tstamp = 0;
+ int ret;
+
+ iov.iov_base = data;
+ iov.iov_len = sizeof(data);
+
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+
+ msg.msg_control = control;
+ msg.msg_controllen = sizeof(control);
+
+ while (1) {
+ const char *reason;
+
+ ret = recvmsg(fdt, &msg, MSG_ERRQUEUE);
+ if (ret == -1 && errno == EAGAIN)
+ break;
+ if (ret == -1)
+ error(1, errno, "errqueue");
+ if (msg.msg_flags != MSG_ERRQUEUE)
+ error(1, 0, "errqueue: flags 0x%x\n", msg.msg_flags);
+
+ cm = CMSG_FIRSTHDR(&msg);
+ if (cm->cmsg_level != cfg_errq_level ||
+ cm->cmsg_type != cfg_errq_type)
+ error(1, 0, "errqueue: type 0x%x.0x%x\n",
+ cm->cmsg_level, cm->cmsg_type);
+
+ err = (struct sock_extended_err *)CMSG_DATA(cm);
+ if (err->ee_origin != SO_EE_ORIGIN_TXTIME)
+ error(1, 0, "errqueue: origin 0x%x\n", err->ee_origin);
+
+ switch (err->ee_errno) {
+ case ECANCELED:
+ if (err->ee_code != SO_EE_CODE_TXTIME_MISSED)
+ error(1, 0, "errqueue: unknown ECANCELED %u\n",
+ err->ee_code);
+ reason = "missed txtime";
+ break;
+ case EINVAL:
+ if (err->ee_code != SO_EE_CODE_TXTIME_INVALID_PARAM)
+ error(1, 0, "errqueue: unknown EINVAL %u\n",
+ err->ee_code);
+ reason = "invalid txtime";
+ break;
+ default:
+ error(1, 0, "errqueue: errno %u code %u\n",
+ err->ee_errno, err->ee_code);
+ };
+
+ tstamp = ((int64_t) err->ee_data) << 32 | err->ee_info;
+ tstamp -= (int64_t) glob_tstart;
+ tstamp /= 1000 * 1000;
+ fprintf(stderr, "send: pkt %c at %" PRId64 "ms dropped: %s\n",
+ data[ret - 1], tstamp, reason);
+
+ msg.msg_flags = 0;
+ msg.msg_controllen = sizeof(control);
+ }
+
+ error(1, 0, "recv: timeout");
+}
+
+static void setsockopt_txtime(int fd)
+{
+ struct sock_txtime so_txtime_val = { .clockid = cfg_clockid };
+ struct sock_txtime so_txtime_val_read = { 0 };
+ socklen_t vallen = sizeof(so_txtime_val);
+
+ so_txtime_val.flags = SOF_TXTIME_REPORT_ERRORS;
+
+ if (setsockopt(fd, SOL_SOCKET, SO_TXTIME,
+ &so_txtime_val, sizeof(so_txtime_val)))
+ error(1, errno, "setsockopt txtime");
+
+ if (getsockopt(fd, SOL_SOCKET, SO_TXTIME,
+ &so_txtime_val_read, &vallen))
+ error(1, errno, "getsockopt txtime");
+
+ if (vallen != sizeof(so_txtime_val) ||
+ memcmp(&so_txtime_val, &so_txtime_val_read, vallen))
+ error(1, 0, "getsockopt txtime: mismatch");
+}
+
+static int setup_tx(struct sockaddr *addr, socklen_t alen)
+{
+ int fd;
+
+ fd = socket(addr->sa_family, SOCK_DGRAM, 0);
+ if (fd == -1)
+ error(1, errno, "socket t");
+
+ if (connect(fd, addr, alen))
+ error(1, errno, "connect");
+
+ setsockopt_txtime(fd);
+
+ return fd;
+}
+
+static int setup_rx(struct sockaddr *addr, socklen_t alen)
+{
+ struct timeval tv = { .tv_usec = 100 * 1000 };
+ int fd;
+
+ fd = socket(addr->sa_family, SOCK_DGRAM, 0);
+ if (fd == -1)
+ error(1, errno, "socket r");
+
+ if (bind(fd, addr, alen))
+ error(1, errno, "bind");
+
+ if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)))
+ error(1, errno, "setsockopt rcv timeout");
+
+ return fd;
+}
+
+static void do_test(struct sockaddr *addr, socklen_t alen)
+{
+ int fdt, fdr, i;
+
+ fprintf(stderr, "\nSO_TXTIME ipv%c clock %s\n",
+ addr->sa_family == PF_INET ? '4' : '6',
+ cfg_clockid == CLOCK_TAI ? "tai" : "monotonic");
+
+ fdt = setup_tx(addr, alen);
+ fdr = setup_rx(addr, alen);
+
+ glob_tstart = gettime_ns();
+
+ for (i = 0; i < cfg_num_pkt; i++)
+ do_send_one(fdt, &cfg_in[i]);
+ for (i = 0; i < cfg_num_pkt; i++)
+ if (do_recv_one(fdr, &cfg_out[i]))
+ do_recv_errqueue_timeout(fdt);
+
+ do_recv_verify_empty(fdr);
+
+ if (close(fdr))
+ error(1, errno, "close r");
+ if (close(fdt))
+ error(1, errno, "close t");
+}
+
+static int parse_io(const char *optarg, struct timed_send *array)
+{
+ char *arg, *tok;
+ int aoff = 0;
+
+ arg = strdup(optarg);
+ if (!arg)
+ error(1, errno, "strdup");
+
+ while ((tok = strtok(arg, ","))) {
+ arg = NULL; /* only pass non-zero on first call */
+
+ if (aoff / 2 == MAX_NUM_PKT)
+ error(1, 0, "exceeds max pkt count (%d)", MAX_NUM_PKT);
+
+ if (aoff & 1) { /* parse delay */
+ array->delay_us = strtol(tok, NULL, 0) * 1000;
+ array++;
+ } else { /* parse character */
+ array->data = tok[0];
+ }
+
+ aoff++;
+ }
+
+ free(arg);
+
+ return aoff / 2;
+}
+
+static void parse_opts(int argc, char **argv)
+{
+ int c, ilen, olen;
+
+ while ((c = getopt(argc, argv, "46c:")) != -1) {
+ switch (c) {
+ case '4':
+ cfg_do_ipv4 = true;
+ break;
+ case '6':
+ cfg_do_ipv6 = true;
+ break;
+ case 'c':
+ if (!strcmp(optarg, "tai"))
+ cfg_clockid = CLOCK_TAI;
+ else if (!strcmp(optarg, "monotonic") ||
+ !strcmp(optarg, "mono"))
+ cfg_clockid = CLOCK_MONOTONIC;
+ else
+ error(1, 0, "unknown clock id %s", optarg);
+ break;
+ default:
+ error(1, 0, "parse error at %d", optind);
+ }
+ }
+
+ if (argc - optind != 2)
+ error(1, 0, "Usage: %s [-46] -c <clock> <in> <out>", argv[0]);
+
+ ilen = parse_io(argv[optind], cfg_in);
+ olen = parse_io(argv[optind + 1], cfg_out);
+ if (ilen != olen)
+ error(1, 0, "i/o streams len mismatch (%d, %d)\n", ilen, olen);
+ cfg_num_pkt = ilen;
+}
+
+int main(int argc, char **argv)
+{
+ parse_opts(argc, argv);
+
+ if (cfg_do_ipv6) {
+ struct sockaddr_in6 addr6 = {0};
+
+ addr6.sin6_family = AF_INET6;
+ addr6.sin6_port = htons(cfg_port);
+ addr6.sin6_addr = in6addr_loopback;
+
+ cfg_errq_level = SOL_IPV6;
+ cfg_errq_type = IPV6_RECVERR;
+
+ do_test((void *)&addr6, sizeof(addr6));
+ }
+
+ if (cfg_do_ipv4) {
+ struct sockaddr_in addr4 = {0};
+
+ addr4.sin_family = AF_INET;
+ addr4.sin_port = htons(cfg_port);
+ addr4.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+
+ cfg_errq_level = SOL_IP;
+ cfg_errq_type = IP_RECVERR;
+
+ do_test((void *)&addr4, sizeof(addr4));
+ }
+
+ return 0;
+}
diff --git a/tools/testing/selftests/net/so_txtime.sh b/tools/testing/selftests/net/so_txtime.sh
new file mode 100755
index 000000000..3f7800eae
--- /dev/null
+++ b/tools/testing/selftests/net/so_txtime.sh
@@ -0,0 +1,36 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Regression tests for the SO_TXTIME interface
+
+# Run in network namespace
+if [[ $# -eq 0 ]]; then
+ if ! ./in_netns.sh $0 __subprocess; then
+ # test is time sensitive, can be flaky
+ echo "test failed: retry once"
+ ./in_netns.sh $0 __subprocess
+ fi
+
+ exit $?
+fi
+
+set -e
+
+tc qdisc add dev lo root fq
+./so_txtime -4 -6 -c mono a,-1 a,-1
+./so_txtime -4 -6 -c mono a,0 a,0
+./so_txtime -4 -6 -c mono a,10 a,10
+./so_txtime -4 -6 -c mono a,10,b,20 a,10,b,20
+./so_txtime -4 -6 -c mono a,20,b,10 b,20,a,20
+
+if tc qdisc replace dev lo root etf clockid CLOCK_TAI delta 400000; then
+ ! ./so_txtime -4 -6 -c tai a,-1 a,-1
+ ! ./so_txtime -4 -6 -c tai a,0 a,0
+ ./so_txtime -4 -6 -c tai a,10 a,10
+ ./so_txtime -4 -6 -c tai a,10,b,20 a,10,b,20
+ ./so_txtime -4 -6 -c tai a,20,b,10 b,10,a,20
+else
+ echo "tc ($(tc -V)) does not support qdisc etf. skipping"
+fi
+
+echo OK. All tests passed
diff --git a/tools/testing/selftests/net/socket.c b/tools/testing/selftests/net/socket.c
new file mode 100644
index 000000000..afca1ead6
--- /dev/null
+++ b/tools/testing/selftests/net/socket.c
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+struct socket_testcase {
+ int domain;
+ int type;
+ int protocol;
+
+ /* 0 = valid file descriptor
+ * -foo = error foo
+ */
+ int expect;
+
+ /* If non-zero, accept EAFNOSUPPORT to handle the case
+ * of the protocol not being configured into the kernel.
+ */
+ int nosupport_ok;
+};
+
+static struct socket_testcase tests[] = {
+ { AF_MAX, 0, 0, -EAFNOSUPPORT, 0 },
+ { AF_INET, SOCK_STREAM, IPPROTO_TCP, 0, 1 },
+ { AF_INET, SOCK_DGRAM, IPPROTO_TCP, -EPROTONOSUPPORT, 1 },
+ { AF_INET, SOCK_DGRAM, IPPROTO_UDP, 0, 1 },
+ { AF_INET, SOCK_STREAM, IPPROTO_UDP, -EPROTONOSUPPORT, 1 },
+};
+
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+#define ERR_STRING_SZ 64
+
+static int run_tests(void)
+{
+ char err_string1[ERR_STRING_SZ];
+ char err_string2[ERR_STRING_SZ];
+ int i, err;
+
+ err = 0;
+ for (i = 0; i < ARRAY_SIZE(tests); i++) {
+ struct socket_testcase *s = &tests[i];
+ int fd;
+
+ fd = socket(s->domain, s->type, s->protocol);
+ if (fd < 0) {
+ if (s->nosupport_ok &&
+ errno == EAFNOSUPPORT)
+ continue;
+
+ if (s->expect < 0 &&
+ errno == -s->expect)
+ continue;
+
+ strerror_r(-s->expect, err_string1, ERR_STRING_SZ);
+ strerror_r(errno, err_string2, ERR_STRING_SZ);
+
+ fprintf(stderr, "socket(%d, %d, %d) expected "
+ "err (%s) got (%s)\n",
+ s->domain, s->type, s->protocol,
+ err_string1, err_string2);
+
+ err = -1;
+ break;
+ } else {
+ close(fd);
+
+ if (s->expect < 0) {
+ strerror_r(errno, err_string1, ERR_STRING_SZ);
+
+ fprintf(stderr, "socket(%d, %d, %d) expected "
+ "success got err (%s)\n",
+ s->domain, s->type, s->protocol,
+ err_string1);
+
+ err = -1;
+ break;
+ }
+ }
+ }
+
+ return err;
+}
+
+int main(void)
+{
+ int err = run_tests();
+
+ return err;
+}
diff --git a/tools/testing/selftests/net/tcp_fastopen_backup_key.c b/tools/testing/selftests/net/tcp_fastopen_backup_key.c
new file mode 100644
index 000000000..9c55ec44f
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_fastopen_backup_key.c
@@ -0,0 +1,335 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Test key rotation for TFO.
+ * New keys are 'rotated' in two steps:
+ * 1) Add new key as the 'backup' key 'behind' the primary key
+ * 2) Make new key the primary by swapping the backup and primary keys
+ *
+ * The rotation is done in stages using multiple sockets bound
+ * to the same port via SO_REUSEPORT. This simulates key rotation
+ * behind say a load balancer. We verify that across the rotation
+ * there are no cases in which a cookie is not accepted by verifying
+ * that TcpExtTCPFastOpenPassiveFail remains 0.
+ */
+#define _GNU_SOURCE
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/epoll.h>
+#include <unistd.h>
+#include <netinet/tcp.h>
+#include <fcntl.h>
+#include <time.h>
+
+#ifndef TCP_FASTOPEN_KEY
+#define TCP_FASTOPEN_KEY 33
+#endif
+
+#define N_LISTEN 10
+#define PROC_FASTOPEN_KEY "/proc/sys/net/ipv4/tcp_fastopen_key"
+#define KEY_LENGTH 16
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+#endif
+
+static bool do_ipv6;
+static bool do_sockopt;
+static bool do_rotate;
+static int key_len = KEY_LENGTH;
+static int rcv_fds[N_LISTEN];
+static int proc_fd;
+static const char *IP4_ADDR = "127.0.0.1";
+static const char *IP6_ADDR = "::1";
+static const int PORT = 8891;
+
+static void get_keys(int fd, uint32_t *keys)
+{
+ char buf[128];
+ socklen_t len = KEY_LENGTH * 2;
+
+ if (do_sockopt) {
+ if (getsockopt(fd, SOL_TCP, TCP_FASTOPEN_KEY, keys, &len))
+ error(1, errno, "Unable to get key");
+ return;
+ }
+ lseek(proc_fd, 0, SEEK_SET);
+ if (read(proc_fd, buf, sizeof(buf)) <= 0)
+ error(1, errno, "Unable to read %s", PROC_FASTOPEN_KEY);
+ if (sscanf(buf, "%x-%x-%x-%x,%x-%x-%x-%x", keys, keys + 1, keys + 2,
+ keys + 3, keys + 4, keys + 5, keys + 6, keys + 7) != 8)
+ error(1, 0, "Unable to parse %s", PROC_FASTOPEN_KEY);
+}
+
+static void set_keys(int fd, uint32_t *keys)
+{
+ char buf[128];
+
+ if (do_sockopt) {
+ if (setsockopt(fd, SOL_TCP, TCP_FASTOPEN_KEY, keys,
+ key_len))
+ error(1, errno, "Unable to set key");
+ return;
+ }
+ if (do_rotate)
+ snprintf(buf, 128, "%08x-%08x-%08x-%08x,%08x-%08x-%08x-%08x",
+ keys[0], keys[1], keys[2], keys[3], keys[4], keys[5],
+ keys[6], keys[7]);
+ else
+ snprintf(buf, 128, "%08x-%08x-%08x-%08x",
+ keys[0], keys[1], keys[2], keys[3]);
+ lseek(proc_fd, 0, SEEK_SET);
+ if (write(proc_fd, buf, sizeof(buf)) <= 0)
+ error(1, errno, "Unable to write %s", PROC_FASTOPEN_KEY);
+}
+
+static void build_rcv_fd(int family, int proto, int *rcv_fds)
+{
+ struct sockaddr_in addr4 = {0};
+ struct sockaddr_in6 addr6 = {0};
+ struct sockaddr *addr;
+ int opt = 1, i, sz;
+ int qlen = 100;
+ uint32_t keys[8];
+
+ switch (family) {
+ case AF_INET:
+ addr4.sin_family = family;
+ addr4.sin_addr.s_addr = htonl(INADDR_ANY);
+ addr4.sin_port = htons(PORT);
+ sz = sizeof(addr4);
+ addr = (struct sockaddr *)&addr4;
+ break;
+ case AF_INET6:
+ addr6.sin6_family = AF_INET6;
+ addr6.sin6_addr = in6addr_any;
+ addr6.sin6_port = htons(PORT);
+ sz = sizeof(addr6);
+ addr = (struct sockaddr *)&addr6;
+ break;
+ default:
+ error(1, 0, "Unsupported family %d", family);
+ /* clang does not recognize error() above as terminating
+ * the program, so it complains that saddr, sz are
+ * not initialized when this code path is taken. Silence it.
+ */
+ return;
+ }
+ for (i = 0; i < ARRAY_SIZE(keys); i++)
+ keys[i] = rand();
+ for (i = 0; i < N_LISTEN; i++) {
+ rcv_fds[i] = socket(family, proto, 0);
+ if (rcv_fds[i] < 0)
+ error(1, errno, "failed to create receive socket");
+ if (setsockopt(rcv_fds[i], SOL_SOCKET, SO_REUSEPORT, &opt,
+ sizeof(opt)))
+ error(1, errno, "failed to set SO_REUSEPORT");
+ if (bind(rcv_fds[i], addr, sz))
+ error(1, errno, "failed to bind receive socket");
+ if (setsockopt(rcv_fds[i], SOL_TCP, TCP_FASTOPEN, &qlen,
+ sizeof(qlen)))
+ error(1, errno, "failed to set TCP_FASTOPEN");
+ set_keys(rcv_fds[i], keys);
+ if (proto == SOCK_STREAM && listen(rcv_fds[i], 10))
+ error(1, errno, "failed to listen on receive port");
+ }
+}
+
+static int connect_and_send(int family, int proto)
+{
+ struct sockaddr_in saddr4 = {0};
+ struct sockaddr_in daddr4 = {0};
+ struct sockaddr_in6 saddr6 = {0};
+ struct sockaddr_in6 daddr6 = {0};
+ struct sockaddr *saddr, *daddr;
+ int fd, sz, ret;
+ char data[1];
+
+ switch (family) {
+ case AF_INET:
+ saddr4.sin_family = AF_INET;
+ saddr4.sin_addr.s_addr = htonl(INADDR_ANY);
+ saddr4.sin_port = 0;
+
+ daddr4.sin_family = AF_INET;
+ if (!inet_pton(family, IP4_ADDR, &daddr4.sin_addr.s_addr))
+ error(1, errno, "inet_pton failed: %s", IP4_ADDR);
+ daddr4.sin_port = htons(PORT);
+
+ sz = sizeof(saddr4);
+ saddr = (struct sockaddr *)&saddr4;
+ daddr = (struct sockaddr *)&daddr4;
+ break;
+ case AF_INET6:
+ saddr6.sin6_family = AF_INET6;
+ saddr6.sin6_addr = in6addr_any;
+
+ daddr6.sin6_family = AF_INET6;
+ if (!inet_pton(family, IP6_ADDR, &daddr6.sin6_addr))
+ error(1, errno, "inet_pton failed: %s", IP6_ADDR);
+ daddr6.sin6_port = htons(PORT);
+
+ sz = sizeof(saddr6);
+ saddr = (struct sockaddr *)&saddr6;
+ daddr = (struct sockaddr *)&daddr6;
+ break;
+ default:
+ error(1, 0, "Unsupported family %d", family);
+ /* clang does not recognize error() above as terminating
+ * the program, so it complains that saddr, daddr, sz are
+ * not initialized when this code path is taken. Silence it.
+ */
+ return -1;
+ }
+ fd = socket(family, proto, 0);
+ if (fd < 0)
+ error(1, errno, "failed to create send socket");
+ if (bind(fd, saddr, sz))
+ error(1, errno, "failed to bind send socket");
+ data[0] = 'a';
+ ret = sendto(fd, data, 1, MSG_FASTOPEN, daddr, sz);
+ if (ret != 1)
+ error(1, errno, "failed to sendto");
+
+ return fd;
+}
+
+static bool is_listen_fd(int fd)
+{
+ int i;
+
+ for (i = 0; i < N_LISTEN; i++) {
+ if (rcv_fds[i] == fd)
+ return true;
+ }
+ return false;
+}
+
+static void rotate_key(int fd)
+{
+ static int iter;
+ static uint32_t new_key[4];
+ uint32_t keys[8];
+ uint32_t tmp_key[4];
+ int i;
+
+ if (iter < N_LISTEN) {
+ /* first set new key as backups */
+ if (iter == 0) {
+ for (i = 0; i < ARRAY_SIZE(new_key); i++)
+ new_key[i] = rand();
+ }
+ get_keys(fd, keys);
+ memcpy(keys + 4, new_key, KEY_LENGTH);
+ set_keys(fd, keys);
+ } else {
+ /* swap the keys */
+ get_keys(fd, keys);
+ memcpy(tmp_key, keys + 4, KEY_LENGTH);
+ memcpy(keys + 4, keys, KEY_LENGTH);
+ memcpy(keys, tmp_key, KEY_LENGTH);
+ set_keys(fd, keys);
+ }
+ if (++iter >= (N_LISTEN * 2))
+ iter = 0;
+}
+
+static void run_one_test(int family)
+{
+ struct epoll_event ev;
+ int i, send_fd;
+ int n_loops = 10000;
+ int rotate_key_fd = 0;
+ int key_rotate_interval = 50;
+ int fd, epfd;
+ char buf[1];
+
+ build_rcv_fd(family, SOCK_STREAM, rcv_fds);
+ epfd = epoll_create(1);
+ if (epfd < 0)
+ error(1, errno, "failed to create epoll");
+ ev.events = EPOLLIN;
+ for (i = 0; i < N_LISTEN; i++) {
+ ev.data.fd = rcv_fds[i];
+ if (epoll_ctl(epfd, EPOLL_CTL_ADD, rcv_fds[i], &ev))
+ error(1, errno, "failed to register sock epoll");
+ }
+ while (n_loops--) {
+ send_fd = connect_and_send(family, SOCK_STREAM);
+ if (do_rotate && ((n_loops % key_rotate_interval) == 0)) {
+ rotate_key(rcv_fds[rotate_key_fd]);
+ if (++rotate_key_fd >= N_LISTEN)
+ rotate_key_fd = 0;
+ }
+ while (1) {
+ i = epoll_wait(epfd, &ev, 1, -1);
+ if (i < 0)
+ error(1, errno, "epoll_wait failed");
+ if (is_listen_fd(ev.data.fd)) {
+ fd = accept(ev.data.fd, NULL, NULL);
+ if (fd < 0)
+ error(1, errno, "failed to accept");
+ ev.data.fd = fd;
+ if (epoll_ctl(epfd, EPOLL_CTL_ADD, fd, &ev))
+ error(1, errno, "failed epoll add");
+ continue;
+ }
+ i = recv(ev.data.fd, buf, sizeof(buf), 0);
+ if (i != 1)
+ error(1, errno, "failed recv data");
+ if (epoll_ctl(epfd, EPOLL_CTL_DEL, ev.data.fd, NULL))
+ error(1, errno, "failed epoll del");
+ close(ev.data.fd);
+ break;
+ }
+ close(send_fd);
+ }
+ for (i = 0; i < N_LISTEN; i++)
+ close(rcv_fds[i]);
+}
+
+static void parse_opts(int argc, char **argv)
+{
+ int c;
+
+ while ((c = getopt(argc, argv, "46sr")) != -1) {
+ switch (c) {
+ case '4':
+ do_ipv6 = false;
+ break;
+ case '6':
+ do_ipv6 = true;
+ break;
+ case 's':
+ do_sockopt = true;
+ break;
+ case 'r':
+ do_rotate = true;
+ key_len = KEY_LENGTH * 2;
+ break;
+ default:
+ error(1, 0, "%s: parse error", argv[0]);
+ }
+ }
+}
+
+int main(int argc, char **argv)
+{
+ parse_opts(argc, argv);
+ proc_fd = open(PROC_FASTOPEN_KEY, O_RDWR);
+ if (proc_fd < 0)
+ error(1, errno, "Unable to open %s", PROC_FASTOPEN_KEY);
+ srand(time(NULL));
+ if (do_ipv6)
+ run_one_test(AF_INET6);
+ else
+ run_one_test(AF_INET);
+ close(proc_fd);
+ fprintf(stderr, "PASS\n");
+ return 0;
+}
diff --git a/tools/testing/selftests/net/tcp_fastopen_backup_key.sh b/tools/testing/selftests/net/tcp_fastopen_backup_key.sh
new file mode 100755
index 000000000..f6e65674b
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_fastopen_backup_key.sh
@@ -0,0 +1,55 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# rotate TFO keys for ipv4/ipv6 and verify that the client does
+# not present an invalid cookie.
+
+set +x
+set -e
+
+readonly NETNS="ns-$(mktemp -u XXXXXX)"
+
+setup() {
+ ip netns add "${NETNS}"
+ ip -netns "${NETNS}" link set lo up
+ ip netns exec "${NETNS}" sysctl -w net.ipv4.tcp_fastopen=3 \
+ >/dev/null 2>&1
+}
+
+cleanup() {
+ ip netns del "${NETNS}"
+}
+
+trap cleanup EXIT
+setup
+
+do_test() {
+ # flush routes before each run, otherwise successive runs can
+ # initially present an old TFO cookie
+ ip netns exec "${NETNS}" ip tcp_metrics flush
+ ip netns exec "${NETNS}" ./tcp_fastopen_backup_key "$1"
+ val=$(ip netns exec "${NETNS}" nstat -az | \
+ grep TcpExtTCPFastOpenPassiveFail | awk '{print $2}')
+ if [ "$val" != 0 ]; then
+ echo "FAIL: TcpExtTCPFastOpenPassiveFail non-zero"
+ return 1
+ fi
+}
+
+do_test "-4"
+do_test "-6"
+do_test "-4"
+do_test "-6"
+do_test "-4s"
+do_test "-6s"
+do_test "-4s"
+do_test "-6s"
+do_test "-4r"
+do_test "-6r"
+do_test "-4r"
+do_test "-6r"
+do_test "-4sr"
+do_test "-6sr"
+do_test "-4sr"
+do_test "-6sr"
+echo "all tests done"
diff --git a/tools/testing/selftests/net/tcp_inq.c b/tools/testing/selftests/net/tcp_inq.c
new file mode 100644
index 000000000..bd6a9c7a3
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_inq.c
@@ -0,0 +1,179 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2018 Google Inc.
+ * Author: Soheil Hassas Yeganeh (soheil@google.com)
+ *
+ * Simple example on how to use TCP_INQ and TCP_CM_INQ.
+ */
+#define _GNU_SOURCE
+
+#include <error.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#ifndef TCP_INQ
+#define TCP_INQ 36
+#endif
+
+#ifndef TCP_CM_INQ
+#define TCP_CM_INQ TCP_INQ
+#endif
+
+#define BUF_SIZE 8192
+#define CMSG_SIZE 32
+
+static int family = AF_INET6;
+static socklen_t addr_len = sizeof(struct sockaddr_in6);
+static int port = 4974;
+
+static void setup_loopback_addr(int family, struct sockaddr_storage *sockaddr)
+{
+ struct sockaddr_in6 *addr6 = (void *) sockaddr;
+ struct sockaddr_in *addr4 = (void *) sockaddr;
+
+ switch (family) {
+ case PF_INET:
+ memset(addr4, 0, sizeof(*addr4));
+ addr4->sin_family = AF_INET;
+ addr4->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+ addr4->sin_port = htons(port);
+ break;
+ case PF_INET6:
+ memset(addr6, 0, sizeof(*addr6));
+ addr6->sin6_family = AF_INET6;
+ addr6->sin6_addr = in6addr_loopback;
+ addr6->sin6_port = htons(port);
+ break;
+ default:
+ error(1, 0, "illegal family");
+ }
+}
+
+void *start_server(void *arg)
+{
+ int server_fd = (int)(unsigned long)arg;
+ struct sockaddr_in addr;
+ socklen_t addrlen = sizeof(addr);
+ char *buf;
+ int fd;
+ int r;
+
+ buf = malloc(BUF_SIZE);
+
+ for (;;) {
+ fd = accept(server_fd, (struct sockaddr *)&addr, &addrlen);
+ if (fd == -1) {
+ perror("accept");
+ break;
+ }
+ do {
+ r = send(fd, buf, BUF_SIZE, 0);
+ } while (r < 0 && errno == EINTR);
+ if (r < 0)
+ perror("send");
+ if (r != BUF_SIZE)
+ fprintf(stderr, "can only send %d bytes\n", r);
+ /* TCP_INQ can overestimate in-queue by one byte if we send
+ * the FIN packet. Sleep for 1 second, so that the client
+ * likely invoked recvmsg().
+ */
+ sleep(1);
+ close(fd);
+ }
+
+ free(buf);
+ close(server_fd);
+ pthread_exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+ struct sockaddr_storage listen_addr, addr;
+ int c, one = 1, inq = -1;
+ pthread_t server_thread;
+ char cmsgbuf[CMSG_SIZE];
+ struct iovec iov[1];
+ struct cmsghdr *cm;
+ struct msghdr msg;
+ int server_fd, fd;
+ char *buf;
+
+ while ((c = getopt(argc, argv, "46p:")) != -1) {
+ switch (c) {
+ case '4':
+ family = PF_INET;
+ addr_len = sizeof(struct sockaddr_in);
+ break;
+ case '6':
+ family = PF_INET6;
+ addr_len = sizeof(struct sockaddr_in6);
+ break;
+ case 'p':
+ port = atoi(optarg);
+ break;
+ }
+ }
+
+ server_fd = socket(family, SOCK_STREAM, 0);
+ if (server_fd < 0)
+ error(1, errno, "server socket");
+ setup_loopback_addr(family, &listen_addr);
+ if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR,
+ &one, sizeof(one)) != 0)
+ error(1, errno, "setsockopt(SO_REUSEADDR)");
+ if (bind(server_fd, (const struct sockaddr *)&listen_addr,
+ addr_len) == -1)
+ error(1, errno, "bind");
+ if (listen(server_fd, 128) == -1)
+ error(1, errno, "listen");
+ if (pthread_create(&server_thread, NULL, start_server,
+ (void *)(unsigned long)server_fd) != 0)
+ error(1, errno, "pthread_create");
+
+ fd = socket(family, SOCK_STREAM, 0);
+ if (fd < 0)
+ error(1, errno, "client socket");
+ setup_loopback_addr(family, &addr);
+ if (connect(fd, (const struct sockaddr *)&addr, addr_len) == -1)
+ error(1, errno, "connect");
+ if (setsockopt(fd, SOL_TCP, TCP_INQ, &one, sizeof(one)) != 0)
+ error(1, errno, "setsockopt(TCP_INQ)");
+
+ msg.msg_name = NULL;
+ msg.msg_namelen = 0;
+ msg.msg_iov = iov;
+ msg.msg_iovlen = 1;
+ msg.msg_control = cmsgbuf;
+ msg.msg_controllen = sizeof(cmsgbuf);
+ msg.msg_flags = 0;
+
+ buf = malloc(BUF_SIZE);
+ iov[0].iov_base = buf;
+ iov[0].iov_len = BUF_SIZE / 2;
+
+ if (recvmsg(fd, &msg, 0) != iov[0].iov_len)
+ error(1, errno, "recvmsg");
+ if (msg.msg_flags & MSG_CTRUNC)
+ error(1, 0, "control message is truncated");
+
+ for (cm = CMSG_FIRSTHDR(&msg); cm; cm = CMSG_NXTHDR(&msg, cm))
+ if (cm->cmsg_level == SOL_TCP && cm->cmsg_type == TCP_CM_INQ)
+ inq = *((int *) CMSG_DATA(cm));
+
+ if (inq != BUF_SIZE - iov[0].iov_len) {
+ fprintf(stderr, "unexpected inq: %d\n", inq);
+ exit(1);
+ }
+
+ printf("PASSED\n");
+ free(buf);
+ close(fd);
+ return 0;
+}
diff --git a/tools/testing/selftests/net/tcp_mmap.c b/tools/testing/selftests/net/tcp_mmap.c
new file mode 100644
index 000000000..00f837c9b
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_mmap.c
@@ -0,0 +1,517 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2018 Google Inc.
+ * Author: Eric Dumazet (edumazet@google.com)
+ *
+ * Reference program demonstrating tcp mmap() usage,
+ * and SO_RCVLOWAT hints for receiver.
+ *
+ * Note : NIC with header split is needed to use mmap() on TCP :
+ * Each incoming frame must be a multiple of PAGE_SIZE bytes of TCP payload.
+ *
+ * How to use on loopback interface :
+ *
+ * ifconfig lo mtu 61512 # 15*4096 + 40 (ipv6 header) + 32 (TCP with TS option header)
+ * tcp_mmap -s -z &
+ * tcp_mmap -H ::1 -z
+ *
+ * Or leave default lo mtu, but use -M option to set TCP_MAXSEG option to (4096 + 12)
+ * (4096 : page size on x86, 12: TCP TS option length)
+ * tcp_mmap -s -z -M $((4096+12)) &
+ * tcp_mmap -H ::1 -z -M $((4096+12))
+ *
+ * Note: -z option on sender uses MSG_ZEROCOPY, which forces a copy when packets go through loopback interface.
+ * We might use sendfile() instead, but really this test program is about mmap(), for receivers ;)
+ *
+ * $ ./tcp_mmap -s & # Without mmap()
+ * $ for i in {1..4}; do ./tcp_mmap -H ::1 -z ; done
+ * received 32768 MB (0 % mmap'ed) in 14.1157 s, 19.4732 Gbit
+ * cpu usage user:0.057 sys:7.815, 240.234 usec per MB, 65531 c-switches
+ * received 32768 MB (0 % mmap'ed) in 14.6833 s, 18.7204 Gbit
+ * cpu usage user:0.043 sys:8.103, 248.596 usec per MB, 65524 c-switches
+ * received 32768 MB (0 % mmap'ed) in 11.143 s, 24.6682 Gbit
+ * cpu usage user:0.044 sys:6.576, 202.026 usec per MB, 65519 c-switches
+ * received 32768 MB (0 % mmap'ed) in 14.9056 s, 18.4413 Gbit
+ * cpu usage user:0.036 sys:8.193, 251.129 usec per MB, 65530 c-switches
+ * $ kill %1 # kill tcp_mmap server
+ *
+ * $ ./tcp_mmap -s -z & # With mmap()
+ * $ for i in {1..4}; do ./tcp_mmap -H ::1 -z ; done
+ * received 32768 MB (99.9939 % mmap'ed) in 6.73792 s, 40.7956 Gbit
+ * cpu usage user:0.045 sys:2.827, 87.6465 usec per MB, 65532 c-switches
+ * received 32768 MB (99.9939 % mmap'ed) in 7.26732 s, 37.8238 Gbit
+ * cpu usage user:0.037 sys:3.087, 95.3369 usec per MB, 65532 c-switches
+ * received 32768 MB (99.9939 % mmap'ed) in 7.61661 s, 36.0893 Gbit
+ * cpu usage user:0.046 sys:3.559, 110.016 usec per MB, 65529 c-switches
+ * received 32768 MB (99.9939 % mmap'ed) in 7.43764 s, 36.9577 Gbit
+ * cpu usage user:0.035 sys:3.467, 106.873 usec per MB, 65530 c-switches
+ */
+#define _GNU_SOURCE
+#include <pthread.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <error.h>
+#include <sys/socket.h>
+#include <sys/mman.h>
+#include <sys/resource.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <time.h>
+#include <sys/time.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <poll.h>
+#include <linux/tcp.h>
+#include <assert.h>
+
+#ifndef MSG_ZEROCOPY
+#define MSG_ZEROCOPY 0x4000000
+#endif
+
+#define FILE_SZ (1ULL << 35)
+static int cfg_family = AF_INET6;
+static socklen_t cfg_alen = sizeof(struct sockaddr_in6);
+static int cfg_port = 8787;
+
+static int rcvbuf; /* Default: autotuning. Can be set with -r <integer> option */
+static int sndbuf; /* Default: autotuning. Can be set with -w <integer> option */
+static int zflg; /* zero copy option. (MSG_ZEROCOPY for sender, mmap() for receiver */
+static int xflg; /* hash received data (simple xor) (-h option) */
+static int keepflag; /* -k option: receiver shall keep all received file in memory (no munmap() calls) */
+
+static size_t chunk_size = 512*1024;
+
+static size_t map_align;
+
+unsigned long htotal;
+
+static inline void prefetch(const void *x)
+{
+#if defined(__x86_64__)
+ asm volatile("prefetcht0 %P0" : : "m" (*(const char *)x));
+#endif
+}
+
+void hash_zone(void *zone, unsigned int length)
+{
+ unsigned long temp = htotal;
+
+ while (length >= 8*sizeof(long)) {
+ prefetch(zone + 384);
+ temp ^= *(unsigned long *)zone;
+ temp ^= *(unsigned long *)(zone + sizeof(long));
+ temp ^= *(unsigned long *)(zone + 2*sizeof(long));
+ temp ^= *(unsigned long *)(zone + 3*sizeof(long));
+ temp ^= *(unsigned long *)(zone + 4*sizeof(long));
+ temp ^= *(unsigned long *)(zone + 5*sizeof(long));
+ temp ^= *(unsigned long *)(zone + 6*sizeof(long));
+ temp ^= *(unsigned long *)(zone + 7*sizeof(long));
+ zone += 8*sizeof(long);
+ length -= 8*sizeof(long);
+ }
+ while (length >= 1) {
+ temp ^= *(unsigned char *)zone;
+ zone += 1;
+ length--;
+ }
+ htotal = temp;
+}
+
+#define ALIGN_UP(x, align_to) (((x) + ((align_to)-1)) & ~((align_to)-1))
+#define ALIGN_PTR_UP(p, ptr_align_to) ((typeof(p))ALIGN_UP((unsigned long)(p), ptr_align_to))
+
+
+static void *mmap_large_buffer(size_t need, size_t *allocated)
+{
+ void *buffer;
+ size_t sz;
+
+ /* Attempt to use huge pages if possible. */
+ sz = ALIGN_UP(need, map_align);
+ buffer = mmap(NULL, sz, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB, -1, 0);
+
+ if (buffer == (void *)-1) {
+ sz = need;
+ buffer = mmap(NULL, sz, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+ if (buffer != (void *)-1)
+ fprintf(stderr, "MAP_HUGETLB attempt failed, look at /sys/kernel/mm/hugepages for optimal performance\n");
+ }
+ *allocated = sz;
+ return buffer;
+}
+
+void *child_thread(void *arg)
+{
+ unsigned long total_mmap = 0, total = 0;
+ struct tcp_zerocopy_receive zc;
+ unsigned long delta_usec;
+ int flags = MAP_SHARED;
+ struct timeval t0, t1;
+ char *buffer = NULL;
+ void *raddr = NULL;
+ void *addr = NULL;
+ double throughput;
+ struct rusage ru;
+ size_t buffer_sz;
+ int lu, fd;
+
+ fd = (int)(unsigned long)arg;
+
+ gettimeofday(&t0, NULL);
+
+ fcntl(fd, F_SETFL, O_NDELAY);
+ buffer = mmap_large_buffer(chunk_size, &buffer_sz);
+ if (buffer == (void *)-1) {
+ perror("mmap");
+ goto error;
+ }
+ if (zflg) {
+ raddr = mmap(NULL, chunk_size + map_align, PROT_READ, flags, fd, 0);
+ if (raddr == (void *)-1) {
+ perror("mmap");
+ zflg = 0;
+ } else {
+ addr = ALIGN_PTR_UP(raddr, map_align);
+ }
+ }
+ while (1) {
+ struct pollfd pfd = { .fd = fd, .events = POLLIN, };
+ int sub;
+
+ poll(&pfd, 1, 10000);
+ if (zflg) {
+ socklen_t zc_len = sizeof(zc);
+ int res;
+
+ memset(&zc, 0, sizeof(zc));
+ zc.address = (__u64)((unsigned long)addr);
+ zc.length = chunk_size;
+
+ res = getsockopt(fd, IPPROTO_TCP, TCP_ZEROCOPY_RECEIVE,
+ &zc, &zc_len);
+ if (res == -1)
+ break;
+
+ if (zc.length) {
+ assert(zc.length <= chunk_size);
+ total_mmap += zc.length;
+ if (xflg)
+ hash_zone(addr, zc.length);
+ /* It is more efficient to unmap the pages right now,
+ * instead of doing this in next TCP_ZEROCOPY_RECEIVE.
+ */
+ madvise(addr, zc.length, MADV_DONTNEED);
+ total += zc.length;
+ }
+ if (zc.recv_skip_hint) {
+ assert(zc.recv_skip_hint <= chunk_size);
+ lu = read(fd, buffer, zc.recv_skip_hint);
+ if (lu > 0) {
+ if (xflg)
+ hash_zone(buffer, lu);
+ total += lu;
+ }
+ }
+ continue;
+ }
+ sub = 0;
+ while (sub < chunk_size) {
+ lu = read(fd, buffer + sub, chunk_size - sub);
+ if (lu == 0)
+ goto end;
+ if (lu < 0)
+ break;
+ if (xflg)
+ hash_zone(buffer + sub, lu);
+ total += lu;
+ sub += lu;
+ }
+ }
+end:
+ gettimeofday(&t1, NULL);
+ delta_usec = (t1.tv_sec - t0.tv_sec) * 1000000 + t1.tv_usec - t0.tv_usec;
+
+ throughput = 0;
+ if (delta_usec)
+ throughput = total * 8.0 / (double)delta_usec / 1000.0;
+ getrusage(RUSAGE_THREAD, &ru);
+ if (total > 1024*1024) {
+ unsigned long total_usec;
+ unsigned long mb = total >> 20;
+ total_usec = 1000000*ru.ru_utime.tv_sec + ru.ru_utime.tv_usec +
+ 1000000*ru.ru_stime.tv_sec + ru.ru_stime.tv_usec;
+ printf("received %lg MB (%lg %% mmap'ed) in %lg s, %lg Gbit\n"
+ " cpu usage user:%lg sys:%lg, %lg usec per MB, %lu c-switches\n",
+ total / (1024.0 * 1024.0),
+ 100.0*total_mmap/total,
+ (double)delta_usec / 1000000.0,
+ throughput,
+ (double)ru.ru_utime.tv_sec + (double)ru.ru_utime.tv_usec / 1000000.0,
+ (double)ru.ru_stime.tv_sec + (double)ru.ru_stime.tv_usec / 1000000.0,
+ (double)total_usec/mb,
+ ru.ru_nvcsw);
+ }
+error:
+ munmap(buffer, buffer_sz);
+ close(fd);
+ if (zflg)
+ munmap(raddr, chunk_size + map_align);
+ pthread_exit(0);
+}
+
+static void apply_rcvsnd_buf(int fd)
+{
+ if (rcvbuf && setsockopt(fd, SOL_SOCKET,
+ SO_RCVBUF, &rcvbuf, sizeof(rcvbuf)) == -1) {
+ perror("setsockopt SO_RCVBUF");
+ }
+
+ if (sndbuf && setsockopt(fd, SOL_SOCKET,
+ SO_SNDBUF, &sndbuf, sizeof(sndbuf)) == -1) {
+ perror("setsockopt SO_SNDBUF");
+ }
+}
+
+
+static void setup_sockaddr(int domain, const char *str_addr,
+ struct sockaddr_storage *sockaddr)
+{
+ struct sockaddr_in6 *addr6 = (void *) sockaddr;
+ struct sockaddr_in *addr4 = (void *) sockaddr;
+
+ switch (domain) {
+ case PF_INET:
+ memset(addr4, 0, sizeof(*addr4));
+ addr4->sin_family = AF_INET;
+ addr4->sin_port = htons(cfg_port);
+ if (str_addr &&
+ inet_pton(AF_INET, str_addr, &(addr4->sin_addr)) != 1)
+ error(1, 0, "ipv4 parse error: %s", str_addr);
+ break;
+ case PF_INET6:
+ memset(addr6, 0, sizeof(*addr6));
+ addr6->sin6_family = AF_INET6;
+ addr6->sin6_port = htons(cfg_port);
+ if (str_addr &&
+ inet_pton(AF_INET6, str_addr, &(addr6->sin6_addr)) != 1)
+ error(1, 0, "ipv6 parse error: %s", str_addr);
+ break;
+ default:
+ error(1, 0, "illegal domain");
+ }
+}
+
+static void do_accept(int fdlisten)
+{
+ pthread_attr_t attr;
+ int rcvlowat;
+
+ pthread_attr_init(&attr);
+ pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+
+ rcvlowat = chunk_size;
+ if (setsockopt(fdlisten, SOL_SOCKET, SO_RCVLOWAT,
+ &rcvlowat, sizeof(rcvlowat)) == -1) {
+ perror("setsockopt SO_RCVLOWAT");
+ }
+
+ apply_rcvsnd_buf(fdlisten);
+
+ while (1) {
+ struct sockaddr_in addr;
+ socklen_t addrlen = sizeof(addr);
+ pthread_t th;
+ int fd, res;
+
+ fd = accept(fdlisten, (struct sockaddr *)&addr, &addrlen);
+ if (fd == -1) {
+ perror("accept");
+ continue;
+ }
+ res = pthread_create(&th, &attr, child_thread,
+ (void *)(unsigned long)fd);
+ if (res) {
+ errno = res;
+ perror("pthread_create");
+ close(fd);
+ }
+ }
+}
+
+/* Each thread should reserve a big enough vma to avoid
+ * spinlock collisions in ptl locks.
+ * This size is 2MB on x86_64, and is exported in /proc/meminfo.
+ */
+static unsigned long default_huge_page_size(void)
+{
+ FILE *f = fopen("/proc/meminfo", "r");
+ unsigned long hps = 0;
+ size_t linelen = 0;
+ char *line = NULL;
+
+ if (!f)
+ return 0;
+ while (getline(&line, &linelen, f) > 0) {
+ if (sscanf(line, "Hugepagesize: %lu kB", &hps) == 1) {
+ hps <<= 10;
+ break;
+ }
+ }
+ free(line);
+ fclose(f);
+ return hps;
+}
+
+int main(int argc, char *argv[])
+{
+ struct sockaddr_storage listenaddr, addr;
+ unsigned int max_pacing_rate = 0;
+ uint64_t total = 0;
+ char *host = NULL;
+ int fd, c, on = 1;
+ size_t buffer_sz;
+ char *buffer;
+ int sflg = 0;
+ int mss = 0;
+
+ while ((c = getopt(argc, argv, "46p:svr:w:H:zxkP:M:C:a:")) != -1) {
+ switch (c) {
+ case '4':
+ cfg_family = PF_INET;
+ cfg_alen = sizeof(struct sockaddr_in);
+ break;
+ case '6':
+ cfg_family = PF_INET6;
+ cfg_alen = sizeof(struct sockaddr_in6);
+ break;
+ case 'p':
+ cfg_port = atoi(optarg);
+ break;
+ case 'H':
+ host = optarg;
+ break;
+ case 's': /* server : listen for incoming connections */
+ sflg++;
+ break;
+ case 'r':
+ rcvbuf = atoi(optarg);
+ break;
+ case 'w':
+ sndbuf = atoi(optarg);
+ break;
+ case 'z':
+ zflg = 1;
+ break;
+ case 'M':
+ mss = atoi(optarg);
+ break;
+ case 'x':
+ xflg = 1;
+ break;
+ case 'k':
+ keepflag = 1;
+ break;
+ case 'P':
+ max_pacing_rate = atoi(optarg) ;
+ break;
+ case 'C':
+ chunk_size = atol(optarg);
+ break;
+ case 'a':
+ map_align = atol(optarg);
+ break;
+ default:
+ exit(1);
+ }
+ }
+ if (!map_align) {
+ map_align = default_huge_page_size();
+ /* if really /proc/meminfo is not helping,
+ * we use the default x86_64 hugepagesize.
+ */
+ if (!map_align)
+ map_align = 2*1024*1024;
+ }
+ if (sflg) {
+ int fdlisten = socket(cfg_family, SOCK_STREAM, 0);
+
+ if (fdlisten == -1) {
+ perror("socket");
+ exit(1);
+ }
+ apply_rcvsnd_buf(fdlisten);
+ setsockopt(fdlisten, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
+
+ setup_sockaddr(cfg_family, host, &listenaddr);
+
+ if (mss &&
+ setsockopt(fdlisten, IPPROTO_TCP, TCP_MAXSEG,
+ &mss, sizeof(mss)) == -1) {
+ perror("setsockopt TCP_MAXSEG");
+ exit(1);
+ }
+ if (bind(fdlisten, (const struct sockaddr *)&listenaddr, cfg_alen) == -1) {
+ perror("bind");
+ exit(1);
+ }
+ if (listen(fdlisten, 128) == -1) {
+ perror("listen");
+ exit(1);
+ }
+ do_accept(fdlisten);
+ }
+
+ buffer = mmap_large_buffer(chunk_size, &buffer_sz);
+ if (buffer == (char *)-1) {
+ perror("mmap");
+ exit(1);
+ }
+
+ fd = socket(cfg_family, SOCK_STREAM, 0);
+ if (fd == -1) {
+ perror("socket");
+ exit(1);
+ }
+ apply_rcvsnd_buf(fd);
+
+ setup_sockaddr(cfg_family, host, &addr);
+
+ if (mss &&
+ setsockopt(fd, IPPROTO_TCP, TCP_MAXSEG, &mss, sizeof(mss)) == -1) {
+ perror("setsockopt TCP_MAXSEG");
+ exit(1);
+ }
+ if (connect(fd, (const struct sockaddr *)&addr, cfg_alen) == -1) {
+ perror("connect");
+ exit(1);
+ }
+ if (max_pacing_rate &&
+ setsockopt(fd, SOL_SOCKET, SO_MAX_PACING_RATE,
+ &max_pacing_rate, sizeof(max_pacing_rate)) == -1)
+ perror("setsockopt SO_MAX_PACING_RATE");
+
+ if (zflg && setsockopt(fd, SOL_SOCKET, SO_ZEROCOPY,
+ &on, sizeof(on)) == -1) {
+ perror("setsockopt SO_ZEROCOPY, (-z option disabled)");
+ zflg = 0;
+ }
+ while (total < FILE_SZ) {
+ int64_t wr = FILE_SZ - total;
+
+ if (wr > chunk_size)
+ wr = chunk_size;
+ /* Note : we just want to fill the pipe with 0 bytes */
+ wr = send(fd, buffer, (size_t)wr, zflg ? MSG_ZEROCOPY : 0);
+ if (wr <= 0)
+ break;
+ total += wr;
+ }
+ close(fd);
+ munmap(buffer, buffer_sz);
+ return 0;
+}
diff --git a/tools/testing/selftests/net/test_blackhole_dev.sh b/tools/testing/selftests/net/test_blackhole_dev.sh
new file mode 100755
index 000000000..3119b80e7
--- /dev/null
+++ b/tools/testing/selftests/net/test_blackhole_dev.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Runs blackhole-dev test using blackhole-dev kernel module
+
+if /sbin/modprobe -q test_blackhole_dev ; then
+ /sbin/modprobe -q -r test_blackhole_dev;
+ echo "test_blackhole_dev: ok";
+else
+ echo "test_blackhole_dev: [FAIL]";
+ exit 1;
+fi
diff --git a/tools/testing/selftests/net/test_bpf.sh b/tools/testing/selftests/net/test_bpf.sh
new file mode 100755
index 000000000..65677909c
--- /dev/null
+++ b/tools/testing/selftests/net/test_bpf.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Runs bpf test using test_bpf kernel module
+
+if /sbin/modprobe -q test_bpf ; then
+ /sbin/modprobe -q -r test_bpf;
+ echo "test_bpf: ok";
+else
+ echo "test_bpf: [FAIL]";
+ exit 1;
+fi
diff --git a/tools/testing/selftests/net/test_vxlan_fdb_changelink.sh b/tools/testing/selftests/net/test_vxlan_fdb_changelink.sh
new file mode 100755
index 000000000..2d442cdab
--- /dev/null
+++ b/tools/testing/selftests/net/test_vxlan_fdb_changelink.sh
@@ -0,0 +1,29 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Check FDB default-remote handling across "ip link set".
+
+check_remotes()
+{
+ local what=$1; shift
+ local N=$(bridge fdb sh dev vx | grep 00:00:00:00:00:00 | wc -l)
+
+ echo -ne "expected two remotes after $what\t"
+ if [[ $N != 2 ]]; then
+ echo "[FAIL]"
+ EXIT_STATUS=1
+ else
+ echo "[ OK ]"
+ fi
+}
+
+ip link add name vx up type vxlan id 2000 dstport 4789
+bridge fdb ap dev vx 00:00:00:00:00:00 dst 192.0.2.20 self permanent
+bridge fdb ap dev vx 00:00:00:00:00:00 dst 192.0.2.30 self permanent
+check_remotes "fdb append"
+
+ip link set dev vx type vxlan remote 192.0.2.30
+check_remotes "link set"
+
+ip link del dev vx
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/test_vxlan_under_vrf.sh b/tools/testing/selftests/net/test_vxlan_under_vrf.sh
new file mode 100755
index 000000000..a44b9aca7
--- /dev/null
+++ b/tools/testing/selftests/net/test_vxlan_under_vrf.sh
@@ -0,0 +1,129 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test is for checking VXLAN underlay in a non-default VRF.
+#
+# It simulates two hypervisors running a VM each using four network namespaces:
+# two for the HVs, two for the VMs.
+# A small VXLAN tunnel is made between the two hypervisors to have the two vms
+# in the same virtual L2:
+#
+# +-------------------+ +-------------------+
+# | | | |
+# | vm-1 netns | | vm-2 netns |
+# | | | |
+# | +-------------+ | | +-------------+ |
+# | | veth-hv | | | | veth-hv | |
+# | | 10.0.0.1/24 | | | | 10.0.0.2/24 | |
+# | +-------------+ | | +-------------+ |
+# | . | | . |
+# +-------------------+ +-------------------+
+# . .
+# . .
+# . .
+# +-----------------------------------+ +------------------------------------+
+# | . | | . |
+# | +----------+ | | +----------+ |
+# | | veth-tap | | | | veth-tap | |
+# | +----+-----+ | | +----+-----+ |
+# | | | | | |
+# | +--+--+ +--------------+ | | +--------------+ +--+--+ |
+# | | br0 | | vrf-underlay | | | | vrf-underlay | | br0 | |
+# | +--+--+ +-------+------+ | | +------+-------+ +--+--+ |
+# | | | | | | | |
+# | +---+----+ +-------+-------+ | | +-------+-------+ +---+----+ |
+# | | vxlan0 |....| veth0 |.|...|.| veth0 |....| vxlan0 | |
+# | +--------+ | 172.16.0.1/24 | | | | 172.16.0.2/24 | +--------+ |
+# | +---------------+ | | +---------------+ |
+# | | | |
+# | hv-1 netns | | hv-2 netns |
+# | | | |
+# +-----------------------------------+ +------------------------------------+
+#
+# This tests both the connectivity between vm-1 and vm-2, and that the underlay
+# can be moved in and out of the vrf by unsetting and setting veth0's master.
+
+set -e
+
+cleanup() {
+ ip link del veth-hv-1 2>/dev/null || true
+ ip link del veth-tap 2>/dev/null || true
+
+ for ns in hv-1 hv-2 vm-1 vm-2; do
+ ip netns del $ns || true
+ done
+}
+
+# Clean start
+cleanup &> /dev/null
+
+[[ $1 == "clean" ]] && exit 0
+
+trap cleanup EXIT
+
+# Setup "Hypervisors" simulated with netns
+ip link add veth-hv-1 type veth peer name veth-hv-2
+setup-hv-networking() {
+ hv=$1
+
+ ip netns add hv-$hv
+ ip link set veth-hv-$hv netns hv-$hv
+ ip -netns hv-$hv link set veth-hv-$hv name veth0
+
+ ip -netns hv-$hv link add vrf-underlay type vrf table 1
+ ip -netns hv-$hv link set vrf-underlay up
+ ip -netns hv-$hv addr add 172.16.0.$hv/24 dev veth0
+ ip -netns hv-$hv link set veth0 up
+
+ ip -netns hv-$hv link add br0 type bridge
+ ip -netns hv-$hv link set br0 up
+
+ ip -netns hv-$hv link add vxlan0 type vxlan id 10 local 172.16.0.$hv dev veth0 dstport 4789
+ ip -netns hv-$hv link set vxlan0 master br0
+ ip -netns hv-$hv link set vxlan0 up
+}
+setup-hv-networking 1
+setup-hv-networking 2
+
+# Check connectivity between HVs by pinging hv-2 from hv-1
+echo -n "Checking HV connectivity "
+ip netns exec hv-1 ping -c 1 -W 1 172.16.0.2 &> /dev/null || (echo "[FAIL]"; false)
+echo "[ OK ]"
+
+# Setups a "VM" simulated by a netns an a veth pair
+setup-vm() {
+ id=$1
+
+ ip netns add vm-$id
+ ip link add veth-tap type veth peer name veth-hv
+
+ ip link set veth-tap netns hv-$id
+ ip -netns hv-$id link set veth-tap master br0
+ ip -netns hv-$id link set veth-tap up
+
+ ip link set veth-hv netns vm-$id
+ ip -netns vm-$id addr add 10.0.0.$id/24 dev veth-hv
+ ip -netns vm-$id link set veth-hv up
+}
+setup-vm 1
+setup-vm 2
+
+# Setup VTEP routes to make ARP work
+bridge -netns hv-1 fdb add 00:00:00:00:00:00 dev vxlan0 dst 172.16.0.2 self permanent
+bridge -netns hv-2 fdb add 00:00:00:00:00:00 dev vxlan0 dst 172.16.0.1 self permanent
+
+echo -n "Check VM connectivity through VXLAN (underlay in the default VRF) "
+ip netns exec vm-1 ping -c 1 -W 1 10.0.0.2 &> /dev/null || (echo "[FAIL]"; false)
+echo "[ OK ]"
+
+# Move the underlay to a non-default VRF
+ip -netns hv-1 link set veth0 vrf vrf-underlay
+ip -netns hv-1 link set vxlan0 down
+ip -netns hv-1 link set vxlan0 up
+ip -netns hv-2 link set veth0 vrf vrf-underlay
+ip -netns hv-2 link set vxlan0 down
+ip -netns hv-2 link set vxlan0 up
+
+echo -n "Check VM connectivity through VXLAN (underlay in a VRF) "
+ip netns exec vm-1 ping -c 1 -W 1 10.0.0.2 &> /dev/null || (echo "[FAIL]"; false)
+echo "[ OK ]"
diff --git a/tools/testing/selftests/net/timestamping.c b/tools/testing/selftests/net/timestamping.c
new file mode 100644
index 000000000..f4bb4fef0
--- /dev/null
+++ b/tools/testing/selftests/net/timestamping.c
@@ -0,0 +1,515 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * This program demonstrates how the various time stamping features in
+ * the Linux kernel work. It emulates the behavior of a PTP
+ * implementation in stand-alone master mode by sending PTPv1 Sync
+ * multicasts once every second. It looks for similar packets, but
+ * beyond that doesn't actually implement PTP.
+ *
+ * Outgoing packets are time stamped with SO_TIMESTAMPING with or
+ * without hardware support.
+ *
+ * Incoming packets are time stamped with SO_TIMESTAMPING with or
+ * without hardware support, SIOCGSTAMP[NS] (per-socket time stamp) and
+ * SO_TIMESTAMP[NS].
+ *
+ * Copyright (C) 2009 Intel Corporation.
+ * Author: Patrick Ohly <patrick.ohly@intel.com>
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <sys/select.h>
+#include <sys/ioctl.h>
+#include <arpa/inet.h>
+#include <net/if.h>
+
+#include <asm/types.h>
+#include <linux/net_tstamp.h>
+#include <linux/errqueue.h>
+#include <linux/sockios.h>
+
+#ifndef SO_TIMESTAMPING
+# define SO_TIMESTAMPING 37
+# define SCM_TIMESTAMPING SO_TIMESTAMPING
+#endif
+
+#ifndef SO_TIMESTAMPNS
+# define SO_TIMESTAMPNS 35
+#endif
+
+static void usage(const char *error)
+{
+ if (error)
+ printf("invalid option: %s\n", error);
+ printf("timestamping interface option*\n\n"
+ "Options:\n"
+ " IP_MULTICAST_LOOP - looping outgoing multicasts\n"
+ " SO_TIMESTAMP - normal software time stamping, ms resolution\n"
+ " SO_TIMESTAMPNS - more accurate software time stamping\n"
+ " SOF_TIMESTAMPING_TX_HARDWARE - hardware time stamping of outgoing packets\n"
+ " SOF_TIMESTAMPING_TX_SOFTWARE - software fallback for outgoing packets\n"
+ " SOF_TIMESTAMPING_RX_HARDWARE - hardware time stamping of incoming packets\n"
+ " SOF_TIMESTAMPING_RX_SOFTWARE - software fallback for incoming packets\n"
+ " SOF_TIMESTAMPING_SOFTWARE - request reporting of software time stamps\n"
+ " SOF_TIMESTAMPING_RAW_HARDWARE - request reporting of raw HW time stamps\n"
+ " SIOCGSTAMP - check last socket time stamp\n"
+ " SIOCGSTAMPNS - more accurate socket time stamp\n");
+ exit(1);
+}
+
+static void bail(const char *error)
+{
+ printf("%s: %s\n", error, strerror(errno));
+ exit(1);
+}
+
+static const unsigned char sync[] = {
+ 0x00, 0x01, 0x00, 0x01,
+ 0x5f, 0x44, 0x46, 0x4c,
+ 0x54, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x01, 0x01,
+
+ /* fake uuid */
+ 0x00, 0x01,
+ 0x02, 0x03, 0x04, 0x05,
+
+ 0x00, 0x01, 0x00, 0x37,
+ 0x00, 0x00, 0x00, 0x08,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x49, 0x05, 0xcd, 0x01,
+ 0x29, 0xb1, 0x8d, 0xb0,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x01,
+
+ /* fake uuid */
+ 0x00, 0x01,
+ 0x02, 0x03, 0x04, 0x05,
+
+ 0x00, 0x00, 0x00, 0x37,
+ 0x00, 0x00, 0x00, 0x04,
+ 0x44, 0x46, 0x4c, 0x54,
+ 0x00, 0x00, 0xf0, 0x60,
+ 0x00, 0x01, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x01,
+ 0x00, 0x00, 0xf0, 0x60,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x04,
+ 0x44, 0x46, 0x4c, 0x54,
+ 0x00, 0x01,
+
+ /* fake uuid */
+ 0x00, 0x01,
+ 0x02, 0x03, 0x04, 0x05,
+
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00
+};
+
+static void sendpacket(int sock, struct sockaddr *addr, socklen_t addr_len)
+{
+ struct timeval now;
+ int res;
+
+ res = sendto(sock, sync, sizeof(sync), 0,
+ addr, addr_len);
+ gettimeofday(&now, 0);
+ if (res < 0)
+ printf("%s: %s\n", "send", strerror(errno));
+ else
+ printf("%ld.%06ld: sent %d bytes\n",
+ (long)now.tv_sec, (long)now.tv_usec,
+ res);
+}
+
+static void printpacket(struct msghdr *msg, int res,
+ char *data,
+ int sock, int recvmsg_flags,
+ int siocgstamp, int siocgstampns)
+{
+ struct sockaddr_in *from_addr = (struct sockaddr_in *)msg->msg_name;
+ struct cmsghdr *cmsg;
+ struct timeval tv;
+ struct timespec ts;
+ struct timeval now;
+
+ gettimeofday(&now, 0);
+
+ printf("%ld.%06ld: received %s data, %d bytes from %s, %zu bytes control messages\n",
+ (long)now.tv_sec, (long)now.tv_usec,
+ (recvmsg_flags & MSG_ERRQUEUE) ? "error" : "regular",
+ res,
+ inet_ntoa(from_addr->sin_addr),
+ msg->msg_controllen);
+ for (cmsg = CMSG_FIRSTHDR(msg);
+ cmsg;
+ cmsg = CMSG_NXTHDR(msg, cmsg)) {
+ printf(" cmsg len %zu: ", cmsg->cmsg_len);
+ switch (cmsg->cmsg_level) {
+ case SOL_SOCKET:
+ printf("SOL_SOCKET ");
+ switch (cmsg->cmsg_type) {
+ case SO_TIMESTAMP: {
+ struct timeval *stamp =
+ (struct timeval *)CMSG_DATA(cmsg);
+ printf("SO_TIMESTAMP %ld.%06ld",
+ (long)stamp->tv_sec,
+ (long)stamp->tv_usec);
+ break;
+ }
+ case SO_TIMESTAMPNS: {
+ struct timespec *stamp =
+ (struct timespec *)CMSG_DATA(cmsg);
+ printf("SO_TIMESTAMPNS %ld.%09ld",
+ (long)stamp->tv_sec,
+ (long)stamp->tv_nsec);
+ break;
+ }
+ case SO_TIMESTAMPING: {
+ struct timespec *stamp =
+ (struct timespec *)CMSG_DATA(cmsg);
+ printf("SO_TIMESTAMPING ");
+ printf("SW %ld.%09ld ",
+ (long)stamp->tv_sec,
+ (long)stamp->tv_nsec);
+ stamp++;
+ /* skip deprecated HW transformed */
+ stamp++;
+ printf("HW raw %ld.%09ld",
+ (long)stamp->tv_sec,
+ (long)stamp->tv_nsec);
+ break;
+ }
+ default:
+ printf("type %d", cmsg->cmsg_type);
+ break;
+ }
+ break;
+ case IPPROTO_IP:
+ printf("IPPROTO_IP ");
+ switch (cmsg->cmsg_type) {
+ case IP_RECVERR: {
+ struct sock_extended_err *err =
+ (struct sock_extended_err *)CMSG_DATA(cmsg);
+ printf("IP_RECVERR ee_errno '%s' ee_origin %d => %s",
+ strerror(err->ee_errno),
+ err->ee_origin,
+#ifdef SO_EE_ORIGIN_TIMESTAMPING
+ err->ee_origin == SO_EE_ORIGIN_TIMESTAMPING ?
+ "bounced packet" : "unexpected origin"
+#else
+ "probably SO_EE_ORIGIN_TIMESTAMPING"
+#endif
+ );
+ if (res < sizeof(sync))
+ printf(" => truncated data?!");
+ else if (!memcmp(sync, data + res - sizeof(sync),
+ sizeof(sync)))
+ printf(" => GOT OUR DATA BACK (HURRAY!)");
+ break;
+ }
+ case IP_PKTINFO: {
+ struct in_pktinfo *pktinfo =
+ (struct in_pktinfo *)CMSG_DATA(cmsg);
+ printf("IP_PKTINFO interface index %u",
+ pktinfo->ipi_ifindex);
+ break;
+ }
+ default:
+ printf("type %d", cmsg->cmsg_type);
+ break;
+ }
+ break;
+ default:
+ printf("level %d type %d",
+ cmsg->cmsg_level,
+ cmsg->cmsg_type);
+ break;
+ }
+ printf("\n");
+ }
+
+ if (siocgstamp) {
+ if (ioctl(sock, SIOCGSTAMP, &tv))
+ printf(" %s: %s\n", "SIOCGSTAMP", strerror(errno));
+ else
+ printf("SIOCGSTAMP %ld.%06ld\n",
+ (long)tv.tv_sec,
+ (long)tv.tv_usec);
+ }
+ if (siocgstampns) {
+ if (ioctl(sock, SIOCGSTAMPNS, &ts))
+ printf(" %s: %s\n", "SIOCGSTAMPNS", strerror(errno));
+ else
+ printf("SIOCGSTAMPNS %ld.%09ld\n",
+ (long)ts.tv_sec,
+ (long)ts.tv_nsec);
+ }
+}
+
+static void recvpacket(int sock, int recvmsg_flags,
+ int siocgstamp, int siocgstampns)
+{
+ char data[256];
+ struct msghdr msg;
+ struct iovec entry;
+ struct sockaddr_in from_addr;
+ struct {
+ struct cmsghdr cm;
+ char control[512];
+ } control;
+ int res;
+
+ memset(&msg, 0, sizeof(msg));
+ msg.msg_iov = &entry;
+ msg.msg_iovlen = 1;
+ entry.iov_base = data;
+ entry.iov_len = sizeof(data);
+ msg.msg_name = (caddr_t)&from_addr;
+ msg.msg_namelen = sizeof(from_addr);
+ msg.msg_control = &control;
+ msg.msg_controllen = sizeof(control);
+
+ res = recvmsg(sock, &msg, recvmsg_flags|MSG_DONTWAIT);
+ if (res < 0) {
+ printf("%s %s: %s\n",
+ "recvmsg",
+ (recvmsg_flags & MSG_ERRQUEUE) ? "error" : "regular",
+ strerror(errno));
+ } else {
+ printpacket(&msg, res, data,
+ sock, recvmsg_flags,
+ siocgstamp, siocgstampns);
+ }
+}
+
+int main(int argc, char **argv)
+{
+ int so_timestamping_flags = 0;
+ int so_timestamp = 0;
+ int so_timestampns = 0;
+ int siocgstamp = 0;
+ int siocgstampns = 0;
+ int ip_multicast_loop = 0;
+ char *interface;
+ int i;
+ int enabled = 1;
+ int sock;
+ struct ifreq device;
+ struct ifreq hwtstamp;
+ struct hwtstamp_config hwconfig, hwconfig_requested;
+ struct sockaddr_in addr;
+ struct ip_mreq imr;
+ struct in_addr iaddr;
+ int val;
+ socklen_t len;
+ struct timeval next;
+ size_t if_len;
+
+ if (argc < 2)
+ usage(0);
+ interface = argv[1];
+ if_len = strlen(interface);
+ if (if_len >= IFNAMSIZ) {
+ printf("interface name exceeds IFNAMSIZ\n");
+ exit(1);
+ }
+
+ for (i = 2; i < argc; i++) {
+ if (!strcasecmp(argv[i], "SO_TIMESTAMP"))
+ so_timestamp = 1;
+ else if (!strcasecmp(argv[i], "SO_TIMESTAMPNS"))
+ so_timestampns = 1;
+ else if (!strcasecmp(argv[i], "SIOCGSTAMP"))
+ siocgstamp = 1;
+ else if (!strcasecmp(argv[i], "SIOCGSTAMPNS"))
+ siocgstampns = 1;
+ else if (!strcasecmp(argv[i], "IP_MULTICAST_LOOP"))
+ ip_multicast_loop = 1;
+ else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_TX_HARDWARE"))
+ so_timestamping_flags |= SOF_TIMESTAMPING_TX_HARDWARE;
+ else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_TX_SOFTWARE"))
+ so_timestamping_flags |= SOF_TIMESTAMPING_TX_SOFTWARE;
+ else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_RX_HARDWARE"))
+ so_timestamping_flags |= SOF_TIMESTAMPING_RX_HARDWARE;
+ else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_RX_SOFTWARE"))
+ so_timestamping_flags |= SOF_TIMESTAMPING_RX_SOFTWARE;
+ else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_SOFTWARE"))
+ so_timestamping_flags |= SOF_TIMESTAMPING_SOFTWARE;
+ else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_RAW_HARDWARE"))
+ so_timestamping_flags |= SOF_TIMESTAMPING_RAW_HARDWARE;
+ else
+ usage(argv[i]);
+ }
+
+ sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
+ if (sock < 0)
+ bail("socket");
+
+ memset(&device, 0, sizeof(device));
+ memcpy(device.ifr_name, interface, if_len + 1);
+ if (ioctl(sock, SIOCGIFADDR, &device) < 0)
+ bail("getting interface IP address");
+
+ memset(&hwtstamp, 0, sizeof(hwtstamp));
+ memcpy(hwtstamp.ifr_name, interface, if_len + 1);
+ hwtstamp.ifr_data = (void *)&hwconfig;
+ memset(&hwconfig, 0, sizeof(hwconfig));
+ hwconfig.tx_type =
+ (so_timestamping_flags & SOF_TIMESTAMPING_TX_HARDWARE) ?
+ HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF;
+ hwconfig.rx_filter =
+ (so_timestamping_flags & SOF_TIMESTAMPING_RX_HARDWARE) ?
+ HWTSTAMP_FILTER_PTP_V1_L4_SYNC : HWTSTAMP_FILTER_NONE;
+ hwconfig_requested = hwconfig;
+ if (ioctl(sock, SIOCSHWTSTAMP, &hwtstamp) < 0) {
+ if ((errno == EINVAL || errno == ENOTSUP) &&
+ hwconfig_requested.tx_type == HWTSTAMP_TX_OFF &&
+ hwconfig_requested.rx_filter == HWTSTAMP_FILTER_NONE)
+ printf("SIOCSHWTSTAMP: disabling hardware time stamping not possible\n");
+ else
+ bail("SIOCSHWTSTAMP");
+ }
+ printf("SIOCSHWTSTAMP: tx_type %d requested, got %d; rx_filter %d requested, got %d\n",
+ hwconfig_requested.tx_type, hwconfig.tx_type,
+ hwconfig_requested.rx_filter, hwconfig.rx_filter);
+
+ /* bind to PTP port */
+ addr.sin_family = AF_INET;
+ addr.sin_addr.s_addr = htonl(INADDR_ANY);
+ addr.sin_port = htons(319 /* PTP event port */);
+ if (bind(sock,
+ (struct sockaddr *)&addr,
+ sizeof(struct sockaddr_in)) < 0)
+ bail("bind");
+
+ /* set multicast group for outgoing packets */
+ inet_aton("224.0.1.130", &iaddr); /* alternate PTP domain 1 */
+ addr.sin_addr = iaddr;
+ imr.imr_multiaddr.s_addr = iaddr.s_addr;
+ imr.imr_interface.s_addr =
+ ((struct sockaddr_in *)&device.ifr_addr)->sin_addr.s_addr;
+ if (setsockopt(sock, IPPROTO_IP, IP_MULTICAST_IF,
+ &imr.imr_interface.s_addr, sizeof(struct in_addr)) < 0)
+ bail("set multicast");
+
+ /* join multicast group, loop our own packet */
+ if (setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP,
+ &imr, sizeof(struct ip_mreq)) < 0)
+ bail("join multicast group");
+
+ if (setsockopt(sock, IPPROTO_IP, IP_MULTICAST_LOOP,
+ &ip_multicast_loop, sizeof(enabled)) < 0) {
+ bail("loop multicast");
+ }
+
+ /* set socket options for time stamping */
+ if (so_timestamp &&
+ setsockopt(sock, SOL_SOCKET, SO_TIMESTAMP,
+ &enabled, sizeof(enabled)) < 0)
+ bail("setsockopt SO_TIMESTAMP");
+
+ if (so_timestampns &&
+ setsockopt(sock, SOL_SOCKET, SO_TIMESTAMPNS,
+ &enabled, sizeof(enabled)) < 0)
+ bail("setsockopt SO_TIMESTAMPNS");
+
+ if (so_timestamping_flags &&
+ setsockopt(sock, SOL_SOCKET, SO_TIMESTAMPING,
+ &so_timestamping_flags,
+ sizeof(so_timestamping_flags)) < 0)
+ bail("setsockopt SO_TIMESTAMPING");
+
+ /* request IP_PKTINFO for debugging purposes */
+ if (setsockopt(sock, SOL_IP, IP_PKTINFO,
+ &enabled, sizeof(enabled)) < 0)
+ printf("%s: %s\n", "setsockopt IP_PKTINFO", strerror(errno));
+
+ /* verify socket options */
+ len = sizeof(val);
+ if (getsockopt(sock, SOL_SOCKET, SO_TIMESTAMP, &val, &len) < 0)
+ printf("%s: %s\n", "getsockopt SO_TIMESTAMP", strerror(errno));
+ else
+ printf("SO_TIMESTAMP %d\n", val);
+
+ if (getsockopt(sock, SOL_SOCKET, SO_TIMESTAMPNS, &val, &len) < 0)
+ printf("%s: %s\n", "getsockopt SO_TIMESTAMPNS",
+ strerror(errno));
+ else
+ printf("SO_TIMESTAMPNS %d\n", val);
+
+ if (getsockopt(sock, SOL_SOCKET, SO_TIMESTAMPING, &val, &len) < 0) {
+ printf("%s: %s\n", "getsockopt SO_TIMESTAMPING",
+ strerror(errno));
+ } else {
+ printf("SO_TIMESTAMPING %d\n", val);
+ if (val != so_timestamping_flags)
+ printf(" not the expected value %d\n",
+ so_timestamping_flags);
+ }
+
+ /* send packets forever every five seconds */
+ gettimeofday(&next, 0);
+ next.tv_sec = (next.tv_sec + 1) / 5 * 5;
+ next.tv_usec = 0;
+ while (1) {
+ struct timeval now;
+ struct timeval delta;
+ long delta_us;
+ int res;
+ fd_set readfs, errorfs;
+
+ gettimeofday(&now, 0);
+ delta_us = (long)(next.tv_sec - now.tv_sec) * 1000000 +
+ (long)(next.tv_usec - now.tv_usec);
+ if (delta_us > 0) {
+ /* continue waiting for timeout or data */
+ delta.tv_sec = delta_us / 1000000;
+ delta.tv_usec = delta_us % 1000000;
+
+ FD_ZERO(&readfs);
+ FD_ZERO(&errorfs);
+ FD_SET(sock, &readfs);
+ FD_SET(sock, &errorfs);
+ printf("%ld.%06ld: select %ldus\n",
+ (long)now.tv_sec, (long)now.tv_usec,
+ delta_us);
+ res = select(sock + 1, &readfs, 0, &errorfs, &delta);
+ gettimeofday(&now, 0);
+ printf("%ld.%06ld: select returned: %d, %s\n",
+ (long)now.tv_sec, (long)now.tv_usec,
+ res,
+ res < 0 ? strerror(errno) : "success");
+ if (res > 0) {
+ if (FD_ISSET(sock, &readfs))
+ printf("ready for reading\n");
+ if (FD_ISSET(sock, &errorfs))
+ printf("has error\n");
+ recvpacket(sock, 0,
+ siocgstamp,
+ siocgstampns);
+ recvpacket(sock, MSG_ERRQUEUE,
+ siocgstamp,
+ siocgstampns);
+ }
+ } else {
+ /* write one packet */
+ sendpacket(sock,
+ (struct sockaddr *)&addr,
+ sizeof(addr));
+ next.tv_sec += 5;
+ continue;
+ }
+ }
+
+ return 0;
+}
diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
new file mode 100644
index 000000000..44a25a9f1
--- /dev/null
+++ b/tools/testing/selftests/net/tls.c
@@ -0,0 +1,1335 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <linux/tls.h>
+#include <linux/tcp.h>
+#include <linux/socket.h>
+
+#include <sys/types.h>
+#include <sys/sendfile.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+
+#include "../kselftest_harness.h"
+
+#define TLS_PAYLOAD_MAX_LEN 16384
+#define SOL_TLS 282
+
+FIXTURE(tls_basic)
+{
+ int fd, cfd;
+ bool notls;
+};
+
+FIXTURE_SETUP(tls_basic)
+{
+ struct sockaddr_in addr;
+ socklen_t len;
+ int sfd, ret;
+
+ self->notls = false;
+ len = sizeof(addr);
+
+ addr.sin_family = AF_INET;
+ addr.sin_addr.s_addr = htonl(INADDR_ANY);
+ addr.sin_port = 0;
+
+ self->fd = socket(AF_INET, SOCK_STREAM, 0);
+ sfd = socket(AF_INET, SOCK_STREAM, 0);
+
+ ret = bind(sfd, &addr, sizeof(addr));
+ ASSERT_EQ(ret, 0);
+ ret = listen(sfd, 10);
+ ASSERT_EQ(ret, 0);
+
+ ret = getsockname(sfd, &addr, &len);
+ ASSERT_EQ(ret, 0);
+
+ ret = connect(self->fd, &addr, sizeof(addr));
+ ASSERT_EQ(ret, 0);
+
+ self->cfd = accept(sfd, &addr, &len);
+ ASSERT_GE(self->cfd, 0);
+
+ close(sfd);
+
+ ret = setsockopt(self->fd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+ if (ret != 0) {
+ ASSERT_EQ(errno, ENOENT);
+ self->notls = true;
+ printf("Failure setting TCP_ULP, testing without tls\n");
+ return;
+ }
+
+ ret = setsockopt(self->cfd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+ ASSERT_EQ(ret, 0);
+}
+
+FIXTURE_TEARDOWN(tls_basic)
+{
+ close(self->fd);
+ close(self->cfd);
+}
+
+/* Send some data through with ULP but no keys */
+TEST_F(tls_basic, base_base)
+{
+ char const *test_str = "test_read";
+ int send_len = 10;
+ char buf[10];
+
+ ASSERT_EQ(strlen(test_str) + 1, send_len);
+
+ EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+ EXPECT_NE(recv(self->cfd, buf, send_len, 0), -1);
+ EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+};
+
+FIXTURE(tls)
+{
+ int fd, cfd;
+ bool notls;
+};
+
+FIXTURE_VARIANT(tls)
+{
+ unsigned int tls_version;
+};
+
+FIXTURE_VARIANT_ADD(tls, 12)
+{
+ .tls_version = TLS_1_2_VERSION,
+};
+
+FIXTURE_VARIANT_ADD(tls, 13)
+{
+ .tls_version = TLS_1_3_VERSION,
+};
+
+FIXTURE_SETUP(tls)
+{
+ struct tls12_crypto_info_aes_gcm_128 tls12;
+ struct sockaddr_in addr;
+ socklen_t len;
+ int sfd, ret;
+
+ self->notls = false;
+ len = sizeof(addr);
+
+ memset(&tls12, 0, sizeof(tls12));
+ tls12.info.version = variant->tls_version;
+ tls12.info.cipher_type = TLS_CIPHER_AES_GCM_128;
+
+ addr.sin_family = AF_INET;
+ addr.sin_addr.s_addr = htonl(INADDR_ANY);
+ addr.sin_port = 0;
+
+ self->fd = socket(AF_INET, SOCK_STREAM, 0);
+ sfd = socket(AF_INET, SOCK_STREAM, 0);
+
+ ret = bind(sfd, &addr, sizeof(addr));
+ ASSERT_EQ(ret, 0);
+ ret = listen(sfd, 10);
+ ASSERT_EQ(ret, 0);
+
+ ret = getsockname(sfd, &addr, &len);
+ ASSERT_EQ(ret, 0);
+
+ ret = connect(self->fd, &addr, sizeof(addr));
+ ASSERT_EQ(ret, 0);
+
+ ret = setsockopt(self->fd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+ if (ret != 0) {
+ self->notls = true;
+ printf("Failure setting TCP_ULP, testing without tls\n");
+ }
+
+ if (!self->notls) {
+ ret = setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12,
+ sizeof(tls12));
+ ASSERT_EQ(ret, 0);
+ }
+
+ self->cfd = accept(sfd, &addr, &len);
+ ASSERT_GE(self->cfd, 0);
+
+ if (!self->notls) {
+ ret = setsockopt(self->cfd, IPPROTO_TCP, TCP_ULP, "tls",
+ sizeof("tls"));
+ ASSERT_EQ(ret, 0);
+
+ ret = setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12,
+ sizeof(tls12));
+ ASSERT_EQ(ret, 0);
+ }
+
+ close(sfd);
+}
+
+FIXTURE_TEARDOWN(tls)
+{
+ close(self->fd);
+ close(self->cfd);
+}
+
+TEST_F(tls, sendfile)
+{
+ int filefd = open("/proc/self/exe", O_RDONLY);
+ struct stat st;
+
+ EXPECT_GE(filefd, 0);
+ fstat(filefd, &st);
+ EXPECT_GE(sendfile(self->fd, filefd, 0, st.st_size), 0);
+}
+
+TEST_F(tls, send_then_sendfile)
+{
+ int filefd = open("/proc/self/exe", O_RDONLY);
+ char const *test_str = "test_send";
+ int to_send = strlen(test_str) + 1;
+ char recv_buf[10];
+ struct stat st;
+ char *buf;
+
+ EXPECT_GE(filefd, 0);
+ fstat(filefd, &st);
+ buf = (char *)malloc(st.st_size);
+
+ EXPECT_EQ(send(self->fd, test_str, to_send, 0), to_send);
+ EXPECT_EQ(recv(self->cfd, recv_buf, to_send, MSG_WAITALL), to_send);
+ EXPECT_EQ(memcmp(test_str, recv_buf, to_send), 0);
+
+ EXPECT_GE(sendfile(self->fd, filefd, 0, st.st_size), 0);
+ EXPECT_EQ(recv(self->cfd, buf, st.st_size, MSG_WAITALL), st.st_size);
+}
+
+static void chunked_sendfile(struct __test_metadata *_metadata,
+ struct _test_data_tls *self,
+ uint16_t chunk_size,
+ uint16_t extra_payload_size)
+{
+ char buf[TLS_PAYLOAD_MAX_LEN];
+ uint16_t test_payload_size;
+ int size = 0;
+ int ret;
+ char filename[] = "/tmp/mytemp.XXXXXX";
+ int fd = mkstemp(filename);
+ off_t offset = 0;
+
+ unlink(filename);
+ ASSERT_GE(fd, 0);
+ EXPECT_GE(chunk_size, 1);
+ test_payload_size = chunk_size + extra_payload_size;
+ ASSERT_GE(TLS_PAYLOAD_MAX_LEN, test_payload_size);
+ memset(buf, 1, test_payload_size);
+ size = write(fd, buf, test_payload_size);
+ EXPECT_EQ(size, test_payload_size);
+ fsync(fd);
+
+ while (size > 0) {
+ ret = sendfile(self->fd, fd, &offset, chunk_size);
+ EXPECT_GE(ret, 0);
+ size -= ret;
+ }
+
+ EXPECT_EQ(recv(self->cfd, buf, test_payload_size, MSG_WAITALL),
+ test_payload_size);
+
+ close(fd);
+}
+
+TEST_F(tls, multi_chunk_sendfile)
+{
+ chunked_sendfile(_metadata, self, 4096, 4096);
+ chunked_sendfile(_metadata, self, 4096, 0);
+ chunked_sendfile(_metadata, self, 4096, 1);
+ chunked_sendfile(_metadata, self, 4096, 2048);
+ chunked_sendfile(_metadata, self, 8192, 2048);
+ chunked_sendfile(_metadata, self, 4096, 8192);
+ chunked_sendfile(_metadata, self, 8192, 4096);
+ chunked_sendfile(_metadata, self, 12288, 1024);
+ chunked_sendfile(_metadata, self, 12288, 2000);
+ chunked_sendfile(_metadata, self, 15360, 100);
+ chunked_sendfile(_metadata, self, 15360, 300);
+ chunked_sendfile(_metadata, self, 1, 4096);
+ chunked_sendfile(_metadata, self, 2048, 4096);
+ chunked_sendfile(_metadata, self, 2048, 8192);
+ chunked_sendfile(_metadata, self, 4096, 8192);
+ chunked_sendfile(_metadata, self, 1024, 12288);
+ chunked_sendfile(_metadata, self, 2000, 12288);
+ chunked_sendfile(_metadata, self, 100, 15360);
+ chunked_sendfile(_metadata, self, 300, 15360);
+}
+
+TEST_F(tls, recv_max)
+{
+ unsigned int send_len = TLS_PAYLOAD_MAX_LEN;
+ char recv_mem[TLS_PAYLOAD_MAX_LEN];
+ char buf[TLS_PAYLOAD_MAX_LEN];
+
+ EXPECT_GE(send(self->fd, buf, send_len, 0), 0);
+ EXPECT_NE(recv(self->cfd, recv_mem, send_len, 0), -1);
+ EXPECT_EQ(memcmp(buf, recv_mem, send_len), 0);
+}
+
+TEST_F(tls, recv_small)
+{
+ char const *test_str = "test_read";
+ int send_len = 10;
+ char buf[10];
+
+ send_len = strlen(test_str) + 1;
+ EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+ EXPECT_NE(recv(self->cfd, buf, send_len, 0), -1);
+ EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+}
+
+TEST_F(tls, msg_more)
+{
+ char const *test_str = "test_read";
+ int send_len = 10;
+ char buf[10 * 2];
+
+ EXPECT_EQ(send(self->fd, test_str, send_len, MSG_MORE), send_len);
+ EXPECT_EQ(recv(self->cfd, buf, send_len, MSG_DONTWAIT), -1);
+ EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+ EXPECT_EQ(recv(self->cfd, buf, send_len * 2, MSG_WAITALL),
+ send_len * 2);
+ EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+}
+
+TEST_F(tls, msg_more_unsent)
+{
+ char const *test_str = "test_read";
+ int send_len = 10;
+ char buf[10];
+
+ EXPECT_EQ(send(self->fd, test_str, send_len, MSG_MORE), send_len);
+ EXPECT_EQ(recv(self->cfd, buf, send_len, MSG_DONTWAIT), -1);
+}
+
+TEST_F(tls, sendmsg_single)
+{
+ struct msghdr msg;
+
+ char const *test_str = "test_sendmsg";
+ size_t send_len = 13;
+ struct iovec vec;
+ char buf[13];
+
+ vec.iov_base = (char *)test_str;
+ vec.iov_len = send_len;
+ memset(&msg, 0, sizeof(struct msghdr));
+ msg.msg_iov = &vec;
+ msg.msg_iovlen = 1;
+ EXPECT_EQ(sendmsg(self->fd, &msg, 0), send_len);
+ EXPECT_EQ(recv(self->cfd, buf, send_len, MSG_WAITALL), send_len);
+ EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+}
+
+#define MAX_FRAGS 64
+#define SEND_LEN 13
+TEST_F(tls, sendmsg_fragmented)
+{
+ char const *test_str = "test_sendmsg";
+ char buf[SEND_LEN * MAX_FRAGS];
+ struct iovec vec[MAX_FRAGS];
+ struct msghdr msg;
+ int i, frags;
+
+ for (frags = 1; frags <= MAX_FRAGS; frags++) {
+ for (i = 0; i < frags; i++) {
+ vec[i].iov_base = (char *)test_str;
+ vec[i].iov_len = SEND_LEN;
+ }
+
+ memset(&msg, 0, sizeof(struct msghdr));
+ msg.msg_iov = vec;
+ msg.msg_iovlen = frags;
+
+ EXPECT_EQ(sendmsg(self->fd, &msg, 0), SEND_LEN * frags);
+ EXPECT_EQ(recv(self->cfd, buf, SEND_LEN * frags, MSG_WAITALL),
+ SEND_LEN * frags);
+
+ for (i = 0; i < frags; i++)
+ EXPECT_EQ(memcmp(buf + SEND_LEN * i,
+ test_str, SEND_LEN), 0);
+ }
+}
+#undef MAX_FRAGS
+#undef SEND_LEN
+
+TEST_F(tls, sendmsg_large)
+{
+ void *mem = malloc(16384);
+ size_t send_len = 16384;
+ size_t sends = 128;
+ struct msghdr msg;
+ size_t recvs = 0;
+ size_t sent = 0;
+
+ memset(&msg, 0, sizeof(struct msghdr));
+ while (sent++ < sends) {
+ struct iovec vec = { (void *)mem, send_len };
+
+ msg.msg_iov = &vec;
+ msg.msg_iovlen = 1;
+ EXPECT_EQ(sendmsg(self->fd, &msg, 0), send_len);
+ }
+
+ while (recvs++ < sends) {
+ EXPECT_NE(recv(self->cfd, mem, send_len, 0), -1);
+ }
+
+ free(mem);
+}
+
+TEST_F(tls, sendmsg_multiple)
+{
+ char const *test_str = "test_sendmsg_multiple";
+ struct iovec vec[5];
+ char *test_strs[5];
+ struct msghdr msg;
+ int total_len = 0;
+ int len_cmp = 0;
+ int iov_len = 5;
+ char *buf;
+ int i;
+
+ memset(&msg, 0, sizeof(struct msghdr));
+ for (i = 0; i < iov_len; i++) {
+ test_strs[i] = (char *)malloc(strlen(test_str) + 1);
+ snprintf(test_strs[i], strlen(test_str) + 1, "%s", test_str);
+ vec[i].iov_base = (void *)test_strs[i];
+ vec[i].iov_len = strlen(test_strs[i]) + 1;
+ total_len += vec[i].iov_len;
+ }
+ msg.msg_iov = vec;
+ msg.msg_iovlen = iov_len;
+
+ EXPECT_EQ(sendmsg(self->fd, &msg, 0), total_len);
+ buf = malloc(total_len);
+ EXPECT_NE(recv(self->cfd, buf, total_len, 0), -1);
+ for (i = 0; i < iov_len; i++) {
+ EXPECT_EQ(memcmp(test_strs[i], buf + len_cmp,
+ strlen(test_strs[i])),
+ 0);
+ len_cmp += strlen(buf + len_cmp) + 1;
+ }
+ for (i = 0; i < iov_len; i++)
+ free(test_strs[i]);
+ free(buf);
+}
+
+TEST_F(tls, sendmsg_multiple_stress)
+{
+ char const *test_str = "abcdefghijklmno";
+ struct iovec vec[1024];
+ char *test_strs[1024];
+ int iov_len = 1024;
+ int total_len = 0;
+ char buf[1 << 14];
+ struct msghdr msg;
+ int len_cmp = 0;
+ int i;
+
+ memset(&msg, 0, sizeof(struct msghdr));
+ for (i = 0; i < iov_len; i++) {
+ test_strs[i] = (char *)malloc(strlen(test_str) + 1);
+ snprintf(test_strs[i], strlen(test_str) + 1, "%s", test_str);
+ vec[i].iov_base = (void *)test_strs[i];
+ vec[i].iov_len = strlen(test_strs[i]) + 1;
+ total_len += vec[i].iov_len;
+ }
+ msg.msg_iov = vec;
+ msg.msg_iovlen = iov_len;
+
+ EXPECT_EQ(sendmsg(self->fd, &msg, 0), total_len);
+ EXPECT_NE(recv(self->cfd, buf, total_len, 0), -1);
+
+ for (i = 0; i < iov_len; i++)
+ len_cmp += strlen(buf + len_cmp) + 1;
+
+ for (i = 0; i < iov_len; i++)
+ free(test_strs[i]);
+}
+
+TEST_F(tls, splice_from_pipe)
+{
+ int send_len = TLS_PAYLOAD_MAX_LEN;
+ char mem_send[TLS_PAYLOAD_MAX_LEN];
+ char mem_recv[TLS_PAYLOAD_MAX_LEN];
+ int p[2];
+
+ ASSERT_GE(pipe(p), 0);
+ EXPECT_GE(write(p[1], mem_send, send_len), 0);
+ EXPECT_GE(splice(p[0], NULL, self->fd, NULL, send_len, 0), 0);
+ EXPECT_EQ(recv(self->cfd, mem_recv, send_len, MSG_WAITALL), send_len);
+ EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
+}
+
+TEST_F(tls, splice_from_pipe2)
+{
+ int send_len = 16000;
+ char mem_send[16000];
+ char mem_recv[16000];
+ int p2[2];
+ int p[2];
+
+ ASSERT_GE(pipe(p), 0);
+ ASSERT_GE(pipe(p2), 0);
+ EXPECT_GE(write(p[1], mem_send, 8000), 0);
+ EXPECT_GE(splice(p[0], NULL, self->fd, NULL, 8000, 0), 0);
+ EXPECT_GE(write(p2[1], mem_send + 8000, 8000), 0);
+ EXPECT_GE(splice(p2[0], NULL, self->fd, NULL, 8000, 0), 0);
+ EXPECT_EQ(recv(self->cfd, mem_recv, send_len, MSG_WAITALL), send_len);
+ EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
+}
+
+TEST_F(tls, send_and_splice)
+{
+ int send_len = TLS_PAYLOAD_MAX_LEN;
+ char mem_send[TLS_PAYLOAD_MAX_LEN];
+ char mem_recv[TLS_PAYLOAD_MAX_LEN];
+ char const *test_str = "test_read";
+ int send_len2 = 10;
+ char buf[10];
+ int p[2];
+
+ ASSERT_GE(pipe(p), 0);
+ EXPECT_EQ(send(self->fd, test_str, send_len2, 0), send_len2);
+ EXPECT_EQ(recv(self->cfd, buf, send_len2, MSG_WAITALL), send_len2);
+ EXPECT_EQ(memcmp(test_str, buf, send_len2), 0);
+
+ EXPECT_GE(write(p[1], mem_send, send_len), send_len);
+ EXPECT_GE(splice(p[0], NULL, self->fd, NULL, send_len, 0), send_len);
+
+ EXPECT_EQ(recv(self->cfd, mem_recv, send_len, MSG_WAITALL), send_len);
+ EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
+}
+
+TEST_F(tls, splice_to_pipe)
+{
+ int send_len = TLS_PAYLOAD_MAX_LEN;
+ char mem_send[TLS_PAYLOAD_MAX_LEN];
+ char mem_recv[TLS_PAYLOAD_MAX_LEN];
+ int p[2];
+
+ ASSERT_GE(pipe(p), 0);
+ EXPECT_GE(send(self->fd, mem_send, send_len, 0), 0);
+ EXPECT_GE(splice(self->cfd, NULL, p[1], NULL, send_len, 0), 0);
+ EXPECT_GE(read(p[0], mem_recv, send_len), 0);
+ EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
+}
+
+TEST_F(tls, recvmsg_single)
+{
+ char const *test_str = "test_recvmsg_single";
+ int send_len = strlen(test_str) + 1;
+ char buf[20];
+ struct msghdr hdr;
+ struct iovec vec;
+
+ memset(&hdr, 0, sizeof(hdr));
+ EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+ vec.iov_base = (char *)buf;
+ vec.iov_len = send_len;
+ hdr.msg_iovlen = 1;
+ hdr.msg_iov = &vec;
+ EXPECT_NE(recvmsg(self->cfd, &hdr, 0), -1);
+ EXPECT_EQ(memcmp(test_str, buf, send_len), 0);
+}
+
+TEST_F(tls, recvmsg_single_max)
+{
+ int send_len = TLS_PAYLOAD_MAX_LEN;
+ char send_mem[TLS_PAYLOAD_MAX_LEN];
+ char recv_mem[TLS_PAYLOAD_MAX_LEN];
+ struct iovec vec;
+ struct msghdr hdr;
+
+ EXPECT_EQ(send(self->fd, send_mem, send_len, 0), send_len);
+ vec.iov_base = (char *)recv_mem;
+ vec.iov_len = TLS_PAYLOAD_MAX_LEN;
+
+ hdr.msg_iovlen = 1;
+ hdr.msg_iov = &vec;
+ EXPECT_NE(recvmsg(self->cfd, &hdr, 0), -1);
+ EXPECT_EQ(memcmp(send_mem, recv_mem, send_len), 0);
+}
+
+TEST_F(tls, recvmsg_multiple)
+{
+ unsigned int msg_iovlen = 1024;
+ unsigned int len_compared = 0;
+ struct iovec vec[1024];
+ char *iov_base[1024];
+ unsigned int iov_len = 16;
+ int send_len = 1 << 14;
+ char buf[1 << 14];
+ struct msghdr hdr;
+ int i;
+
+ EXPECT_EQ(send(self->fd, buf, send_len, 0), send_len);
+ for (i = 0; i < msg_iovlen; i++) {
+ iov_base[i] = (char *)malloc(iov_len);
+ vec[i].iov_base = iov_base[i];
+ vec[i].iov_len = iov_len;
+ }
+
+ hdr.msg_iovlen = msg_iovlen;
+ hdr.msg_iov = vec;
+ EXPECT_NE(recvmsg(self->cfd, &hdr, 0), -1);
+ for (i = 0; i < msg_iovlen; i++)
+ len_compared += iov_len;
+
+ for (i = 0; i < msg_iovlen; i++)
+ free(iov_base[i]);
+}
+
+TEST_F(tls, single_send_multiple_recv)
+{
+ unsigned int total_len = TLS_PAYLOAD_MAX_LEN * 2;
+ unsigned int send_len = TLS_PAYLOAD_MAX_LEN;
+ char send_mem[TLS_PAYLOAD_MAX_LEN * 2];
+ char recv_mem[TLS_PAYLOAD_MAX_LEN * 2];
+
+ EXPECT_GE(send(self->fd, send_mem, total_len, 0), 0);
+ memset(recv_mem, 0, total_len);
+
+ EXPECT_NE(recv(self->cfd, recv_mem, send_len, 0), -1);
+ EXPECT_NE(recv(self->cfd, recv_mem + send_len, send_len, 0), -1);
+ EXPECT_EQ(memcmp(send_mem, recv_mem, total_len), 0);
+}
+
+TEST_F(tls, multiple_send_single_recv)
+{
+ unsigned int total_len = 2 * 10;
+ unsigned int send_len = 10;
+ char recv_mem[2 * 10];
+ char send_mem[10];
+
+ EXPECT_GE(send(self->fd, send_mem, send_len, 0), 0);
+ EXPECT_GE(send(self->fd, send_mem, send_len, 0), 0);
+ memset(recv_mem, 0, total_len);
+ EXPECT_EQ(recv(self->cfd, recv_mem, total_len, MSG_WAITALL), total_len);
+
+ EXPECT_EQ(memcmp(send_mem, recv_mem, send_len), 0);
+ EXPECT_EQ(memcmp(send_mem, recv_mem + send_len, send_len), 0);
+}
+
+TEST_F(tls, single_send_multiple_recv_non_align)
+{
+ const unsigned int total_len = 15;
+ const unsigned int recv_len = 10;
+ char recv_mem[recv_len * 2];
+ char send_mem[total_len];
+
+ EXPECT_GE(send(self->fd, send_mem, total_len, 0), 0);
+ memset(recv_mem, 0, total_len);
+
+ EXPECT_EQ(recv(self->cfd, recv_mem, recv_len, 0), recv_len);
+ EXPECT_EQ(recv(self->cfd, recv_mem + recv_len, recv_len, 0), 5);
+ EXPECT_EQ(memcmp(send_mem, recv_mem, total_len), 0);
+}
+
+TEST_F(tls, recv_partial)
+{
+ char const *test_str = "test_read_partial";
+ char const *test_str_first = "test_read";
+ char const *test_str_second = "_partial";
+ int send_len = strlen(test_str) + 1;
+ char recv_mem[18];
+
+ memset(recv_mem, 0, sizeof(recv_mem));
+ EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+ EXPECT_NE(recv(self->cfd, recv_mem, strlen(test_str_first),
+ MSG_WAITALL), -1);
+ EXPECT_EQ(memcmp(test_str_first, recv_mem, strlen(test_str_first)), 0);
+ memset(recv_mem, 0, sizeof(recv_mem));
+ EXPECT_NE(recv(self->cfd, recv_mem, strlen(test_str_second),
+ MSG_WAITALL), -1);
+ EXPECT_EQ(memcmp(test_str_second, recv_mem, strlen(test_str_second)),
+ 0);
+}
+
+TEST_F(tls, recv_nonblock)
+{
+ char buf[4096];
+ bool err;
+
+ EXPECT_EQ(recv(self->cfd, buf, sizeof(buf), MSG_DONTWAIT), -1);
+ err = (errno == EAGAIN || errno == EWOULDBLOCK);
+ EXPECT_EQ(err, true);
+}
+
+TEST_F(tls, recv_peek)
+{
+ char const *test_str = "test_read_peek";
+ int send_len = strlen(test_str) + 1;
+ char buf[15];
+
+ EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+ EXPECT_NE(recv(self->cfd, buf, send_len, MSG_PEEK), -1);
+ EXPECT_EQ(memcmp(test_str, buf, send_len), 0);
+ memset(buf, 0, sizeof(buf));
+ EXPECT_NE(recv(self->cfd, buf, send_len, 0), -1);
+ EXPECT_EQ(memcmp(test_str, buf, send_len), 0);
+}
+
+TEST_F(tls, recv_peek_multiple)
+{
+ char const *test_str = "test_read_peek";
+ int send_len = strlen(test_str) + 1;
+ unsigned int num_peeks = 100;
+ char buf[15];
+ int i;
+
+ EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+ for (i = 0; i < num_peeks; i++) {
+ EXPECT_NE(recv(self->cfd, buf, send_len, MSG_PEEK), -1);
+ EXPECT_EQ(memcmp(test_str, buf, send_len), 0);
+ memset(buf, 0, sizeof(buf));
+ }
+ EXPECT_NE(recv(self->cfd, buf, send_len, 0), -1);
+ EXPECT_EQ(memcmp(test_str, buf, send_len), 0);
+}
+
+TEST_F(tls, recv_peek_multiple_records)
+{
+ char const *test_str = "test_read_peek_mult_recs";
+ char const *test_str_first = "test_read_peek";
+ char const *test_str_second = "_mult_recs";
+ int len;
+ char buf[64];
+
+ len = strlen(test_str_first);
+ EXPECT_EQ(send(self->fd, test_str_first, len, 0), len);
+
+ len = strlen(test_str_second) + 1;
+ EXPECT_EQ(send(self->fd, test_str_second, len, 0), len);
+
+ len = strlen(test_str_first);
+ memset(buf, 0, len);
+ EXPECT_EQ(recv(self->cfd, buf, len, MSG_PEEK | MSG_WAITALL), len);
+
+ /* MSG_PEEK can only peek into the current record. */
+ len = strlen(test_str_first);
+ EXPECT_EQ(memcmp(test_str_first, buf, len), 0);
+
+ len = strlen(test_str) + 1;
+ memset(buf, 0, len);
+ EXPECT_EQ(recv(self->cfd, buf, len, MSG_WAITALL), len);
+
+ /* Non-MSG_PEEK will advance strparser (and therefore record)
+ * however.
+ */
+ len = strlen(test_str) + 1;
+ EXPECT_EQ(memcmp(test_str, buf, len), 0);
+
+ /* MSG_MORE will hold current record open, so later MSG_PEEK
+ * will see everything.
+ */
+ len = strlen(test_str_first);
+ EXPECT_EQ(send(self->fd, test_str_first, len, MSG_MORE), len);
+
+ len = strlen(test_str_second) + 1;
+ EXPECT_EQ(send(self->fd, test_str_second, len, 0), len);
+
+ len = strlen(test_str) + 1;
+ memset(buf, 0, len);
+ EXPECT_EQ(recv(self->cfd, buf, len, MSG_PEEK | MSG_WAITALL), len);
+
+ len = strlen(test_str) + 1;
+ EXPECT_EQ(memcmp(test_str, buf, len), 0);
+}
+
+TEST_F(tls, recv_peek_large_buf_mult_recs)
+{
+ char const *test_str = "test_read_peek_mult_recs";
+ char const *test_str_first = "test_read_peek";
+ char const *test_str_second = "_mult_recs";
+ int len;
+ char buf[64];
+
+ len = strlen(test_str_first);
+ EXPECT_EQ(send(self->fd, test_str_first, len, 0), len);
+
+ len = strlen(test_str_second) + 1;
+ EXPECT_EQ(send(self->fd, test_str_second, len, 0), len);
+
+ len = strlen(test_str) + 1;
+ memset(buf, 0, len);
+ EXPECT_NE((len = recv(self->cfd, buf, len,
+ MSG_PEEK | MSG_WAITALL)), -1);
+ len = strlen(test_str) + 1;
+ EXPECT_EQ(memcmp(test_str, buf, len), 0);
+}
+
+TEST_F(tls, recv_lowat)
+{
+ char send_mem[10] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
+ char recv_mem[20];
+ int lowat = 8;
+
+ EXPECT_EQ(send(self->fd, send_mem, 10, 0), 10);
+ EXPECT_EQ(send(self->fd, send_mem, 5, 0), 5);
+
+ memset(recv_mem, 0, 20);
+ EXPECT_EQ(setsockopt(self->cfd, SOL_SOCKET, SO_RCVLOWAT,
+ &lowat, sizeof(lowat)), 0);
+ EXPECT_EQ(recv(self->cfd, recv_mem, 1, MSG_WAITALL), 1);
+ EXPECT_EQ(recv(self->cfd, recv_mem + 1, 6, MSG_WAITALL), 6);
+ EXPECT_EQ(recv(self->cfd, recv_mem + 7, 10, 0), 8);
+
+ EXPECT_EQ(memcmp(send_mem, recv_mem, 10), 0);
+ EXPECT_EQ(memcmp(send_mem, recv_mem + 10, 5), 0);
+}
+
+TEST_F(tls, bidir)
+{
+ char const *test_str = "test_read";
+ int send_len = 10;
+ char buf[10];
+ int ret;
+
+ if (!self->notls) {
+ struct tls12_crypto_info_aes_gcm_128 tls12;
+
+ memset(&tls12, 0, sizeof(tls12));
+ tls12.info.version = variant->tls_version;
+ tls12.info.cipher_type = TLS_CIPHER_AES_GCM_128;
+
+ ret = setsockopt(self->fd, SOL_TLS, TLS_RX, &tls12,
+ sizeof(tls12));
+ ASSERT_EQ(ret, 0);
+
+ ret = setsockopt(self->cfd, SOL_TLS, TLS_TX, &tls12,
+ sizeof(tls12));
+ ASSERT_EQ(ret, 0);
+ }
+
+ ASSERT_EQ(strlen(test_str) + 1, send_len);
+
+ EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+ EXPECT_NE(recv(self->cfd, buf, send_len, 0), -1);
+ EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+
+ memset(buf, 0, sizeof(buf));
+
+ EXPECT_EQ(send(self->cfd, test_str, send_len, 0), send_len);
+ EXPECT_NE(recv(self->fd, buf, send_len, 0), -1);
+ EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+};
+
+TEST_F(tls, pollin)
+{
+ char const *test_str = "test_poll";
+ struct pollfd fd = { 0, 0, 0 };
+ char buf[10];
+ int send_len = 10;
+
+ EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+ fd.fd = self->cfd;
+ fd.events = POLLIN;
+
+ EXPECT_EQ(poll(&fd, 1, 20), 1);
+ EXPECT_EQ(fd.revents & POLLIN, 1);
+ EXPECT_EQ(recv(self->cfd, buf, send_len, MSG_WAITALL), send_len);
+ /* Test timing out */
+ EXPECT_EQ(poll(&fd, 1, 20), 0);
+}
+
+TEST_F(tls, poll_wait)
+{
+ char const *test_str = "test_poll_wait";
+ int send_len = strlen(test_str) + 1;
+ struct pollfd fd = { 0, 0, 0 };
+ char recv_mem[15];
+
+ fd.fd = self->cfd;
+ fd.events = POLLIN;
+ EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+ /* Set timeout to inf. secs */
+ EXPECT_EQ(poll(&fd, 1, -1), 1);
+ EXPECT_EQ(fd.revents & POLLIN, 1);
+ EXPECT_EQ(recv(self->cfd, recv_mem, send_len, MSG_WAITALL), send_len);
+}
+
+TEST_F(tls, poll_wait_split)
+{
+ struct pollfd fd = { 0, 0, 0 };
+ char send_mem[20] = {};
+ char recv_mem[15];
+
+ fd.fd = self->cfd;
+ fd.events = POLLIN;
+ /* Send 20 bytes */
+ EXPECT_EQ(send(self->fd, send_mem, sizeof(send_mem), 0),
+ sizeof(send_mem));
+ /* Poll with inf. timeout */
+ EXPECT_EQ(poll(&fd, 1, -1), 1);
+ EXPECT_EQ(fd.revents & POLLIN, 1);
+ EXPECT_EQ(recv(self->cfd, recv_mem, sizeof(recv_mem), MSG_WAITALL),
+ sizeof(recv_mem));
+
+ /* Now the remaining 5 bytes of record data are in TLS ULP */
+ fd.fd = self->cfd;
+ fd.events = POLLIN;
+ EXPECT_EQ(poll(&fd, 1, -1), 1);
+ EXPECT_EQ(fd.revents & POLLIN, 1);
+ EXPECT_EQ(recv(self->cfd, recv_mem, sizeof(recv_mem), 0),
+ sizeof(send_mem) - sizeof(recv_mem));
+}
+
+TEST_F(tls, blocking)
+{
+ size_t data = 100000;
+ int res = fork();
+
+ EXPECT_NE(res, -1);
+
+ if (res) {
+ /* parent */
+ size_t left = data;
+ char buf[16384];
+ int status;
+ int pid2;
+
+ while (left) {
+ int res = send(self->fd, buf,
+ left > 16384 ? 16384 : left, 0);
+
+ EXPECT_GE(res, 0);
+ left -= res;
+ }
+
+ pid2 = wait(&status);
+ EXPECT_EQ(status, 0);
+ EXPECT_EQ(res, pid2);
+ } else {
+ /* child */
+ size_t left = data;
+ char buf[16384];
+
+ while (left) {
+ int res = recv(self->cfd, buf,
+ left > 16384 ? 16384 : left, 0);
+
+ EXPECT_GE(res, 0);
+ left -= res;
+ }
+ }
+}
+
+TEST_F(tls, nonblocking)
+{
+ size_t data = 100000;
+ int sendbuf = 100;
+ int flags;
+ int res;
+
+ flags = fcntl(self->fd, F_GETFL, 0);
+ fcntl(self->fd, F_SETFL, flags | O_NONBLOCK);
+ fcntl(self->cfd, F_SETFL, flags | O_NONBLOCK);
+
+ /* Ensure nonblocking behavior by imposing a small send
+ * buffer.
+ */
+ EXPECT_EQ(setsockopt(self->fd, SOL_SOCKET, SO_SNDBUF,
+ &sendbuf, sizeof(sendbuf)), 0);
+
+ res = fork();
+ EXPECT_NE(res, -1);
+
+ if (res) {
+ /* parent */
+ bool eagain = false;
+ size_t left = data;
+ char buf[16384];
+ int status;
+ int pid2;
+
+ while (left) {
+ int res = send(self->fd, buf,
+ left > 16384 ? 16384 : left, 0);
+
+ if (res == -1 && errno == EAGAIN) {
+ eagain = true;
+ usleep(10000);
+ continue;
+ }
+ EXPECT_GE(res, 0);
+ left -= res;
+ }
+
+ EXPECT_TRUE(eagain);
+ pid2 = wait(&status);
+
+ EXPECT_EQ(status, 0);
+ EXPECT_EQ(res, pid2);
+ } else {
+ /* child */
+ bool eagain = false;
+ size_t left = data;
+ char buf[16384];
+
+ while (left) {
+ int res = recv(self->cfd, buf,
+ left > 16384 ? 16384 : left, 0);
+
+ if (res == -1 && errno == EAGAIN) {
+ eagain = true;
+ usleep(10000);
+ continue;
+ }
+ EXPECT_GE(res, 0);
+ left -= res;
+ }
+ EXPECT_TRUE(eagain);
+ }
+}
+
+static void
+test_mutliproc(struct __test_metadata *_metadata, struct _test_data_tls *self,
+ bool sendpg, unsigned int n_readers, unsigned int n_writers)
+{
+ const unsigned int n_children = n_readers + n_writers;
+ const size_t data = 6 * 1000 * 1000;
+ const size_t file_sz = data / 100;
+ size_t read_bias, write_bias;
+ int i, fd, child_id;
+ char buf[file_sz];
+ pid_t pid;
+
+ /* Only allow multiples for simplicity */
+ ASSERT_EQ(!(n_readers % n_writers) || !(n_writers % n_readers), true);
+ read_bias = n_writers / n_readers ?: 1;
+ write_bias = n_readers / n_writers ?: 1;
+
+ /* prep a file to send */
+ fd = open("/tmp/", O_TMPFILE | O_RDWR, 0600);
+ ASSERT_GE(fd, 0);
+
+ memset(buf, 0xac, file_sz);
+ ASSERT_EQ(write(fd, buf, file_sz), file_sz);
+
+ /* spawn children */
+ for (child_id = 0; child_id < n_children; child_id++) {
+ pid = fork();
+ ASSERT_NE(pid, -1);
+ if (!pid)
+ break;
+ }
+
+ /* parent waits for all children */
+ if (pid) {
+ for (i = 0; i < n_children; i++) {
+ int status;
+
+ wait(&status);
+ EXPECT_EQ(status, 0);
+ }
+
+ return;
+ }
+
+ /* Split threads for reading and writing */
+ if (child_id < n_readers) {
+ size_t left = data * read_bias;
+ char rb[8001];
+
+ while (left) {
+ int res;
+
+ res = recv(self->cfd, rb,
+ left > sizeof(rb) ? sizeof(rb) : left, 0);
+
+ EXPECT_GE(res, 0);
+ left -= res;
+ }
+ } else {
+ size_t left = data * write_bias;
+
+ while (left) {
+ int res;
+
+ ASSERT_EQ(lseek(fd, 0, SEEK_SET), 0);
+ if (sendpg)
+ res = sendfile(self->fd, fd, NULL,
+ left > file_sz ? file_sz : left);
+ else
+ res = send(self->fd, buf,
+ left > file_sz ? file_sz : left, 0);
+
+ EXPECT_GE(res, 0);
+ left -= res;
+ }
+ }
+}
+
+TEST_F(tls, mutliproc_even)
+{
+ test_mutliproc(_metadata, self, false, 6, 6);
+}
+
+TEST_F(tls, mutliproc_readers)
+{
+ test_mutliproc(_metadata, self, false, 4, 12);
+}
+
+TEST_F(tls, mutliproc_writers)
+{
+ test_mutliproc(_metadata, self, false, 10, 2);
+}
+
+TEST_F(tls, mutliproc_sendpage_even)
+{
+ test_mutliproc(_metadata, self, true, 6, 6);
+}
+
+TEST_F(tls, mutliproc_sendpage_readers)
+{
+ test_mutliproc(_metadata, self, true, 4, 12);
+}
+
+TEST_F(tls, mutliproc_sendpage_writers)
+{
+ test_mutliproc(_metadata, self, true, 10, 2);
+}
+
+TEST_F(tls, control_msg)
+{
+ if (self->notls)
+ return;
+
+ char cbuf[CMSG_SPACE(sizeof(char))];
+ char const *test_str = "test_read";
+ int cmsg_len = sizeof(char);
+ char record_type = 100;
+ struct cmsghdr *cmsg;
+ struct msghdr msg;
+ int send_len = 10;
+ struct iovec vec;
+ char buf[10];
+
+ vec.iov_base = (char *)test_str;
+ vec.iov_len = 10;
+ memset(&msg, 0, sizeof(struct msghdr));
+ msg.msg_iov = &vec;
+ msg.msg_iovlen = 1;
+ msg.msg_control = cbuf;
+ msg.msg_controllen = sizeof(cbuf);
+ cmsg = CMSG_FIRSTHDR(&msg);
+ cmsg->cmsg_level = SOL_TLS;
+ /* test sending non-record types. */
+ cmsg->cmsg_type = TLS_SET_RECORD_TYPE;
+ cmsg->cmsg_len = CMSG_LEN(cmsg_len);
+ *CMSG_DATA(cmsg) = record_type;
+ msg.msg_controllen = cmsg->cmsg_len;
+
+ EXPECT_EQ(sendmsg(self->fd, &msg, 0), send_len);
+ /* Should fail because we didn't provide a control message */
+ EXPECT_EQ(recv(self->cfd, buf, send_len, 0), -1);
+
+ vec.iov_base = buf;
+ EXPECT_EQ(recvmsg(self->cfd, &msg, MSG_WAITALL | MSG_PEEK), send_len);
+
+ cmsg = CMSG_FIRSTHDR(&msg);
+ EXPECT_NE(cmsg, NULL);
+ EXPECT_EQ(cmsg->cmsg_level, SOL_TLS);
+ EXPECT_EQ(cmsg->cmsg_type, TLS_GET_RECORD_TYPE);
+ record_type = *((unsigned char *)CMSG_DATA(cmsg));
+ EXPECT_EQ(record_type, 100);
+ EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+
+ /* Recv the message again without MSG_PEEK */
+ record_type = 0;
+ memset(buf, 0, sizeof(buf));
+
+ EXPECT_EQ(recvmsg(self->cfd, &msg, MSG_WAITALL), send_len);
+ cmsg = CMSG_FIRSTHDR(&msg);
+ EXPECT_NE(cmsg, NULL);
+ EXPECT_EQ(cmsg->cmsg_level, SOL_TLS);
+ EXPECT_EQ(cmsg->cmsg_type, TLS_GET_RECORD_TYPE);
+ record_type = *((unsigned char *)CMSG_DATA(cmsg));
+ EXPECT_EQ(record_type, 100);
+ EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+}
+
+TEST_F(tls, shutdown)
+{
+ char const *test_str = "test_read";
+ int send_len = 10;
+ char buf[10];
+
+ ASSERT_EQ(strlen(test_str) + 1, send_len);
+
+ EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+ EXPECT_NE(recv(self->cfd, buf, send_len, 0), -1);
+ EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+
+ shutdown(self->fd, SHUT_RDWR);
+ shutdown(self->cfd, SHUT_RDWR);
+}
+
+TEST_F(tls, shutdown_unsent)
+{
+ char const *test_str = "test_read";
+ int send_len = 10;
+
+ EXPECT_EQ(send(self->fd, test_str, send_len, MSG_MORE), send_len);
+
+ shutdown(self->fd, SHUT_RDWR);
+ shutdown(self->cfd, SHUT_RDWR);
+}
+
+TEST_F(tls, shutdown_reuse)
+{
+ struct sockaddr_in addr;
+ int ret;
+
+ shutdown(self->fd, SHUT_RDWR);
+ shutdown(self->cfd, SHUT_RDWR);
+ close(self->cfd);
+
+ addr.sin_family = AF_INET;
+ addr.sin_addr.s_addr = htonl(INADDR_ANY);
+ addr.sin_port = 0;
+
+ ret = bind(self->fd, &addr, sizeof(addr));
+ EXPECT_EQ(ret, 0);
+ ret = listen(self->fd, 10);
+ EXPECT_EQ(ret, -1);
+ EXPECT_EQ(errno, EINVAL);
+
+ ret = connect(self->fd, &addr, sizeof(addr));
+ EXPECT_EQ(ret, -1);
+ EXPECT_EQ(errno, EISCONN);
+}
+
+TEST(non_established) {
+ struct tls12_crypto_info_aes_gcm_256 tls12;
+ struct sockaddr_in addr;
+ int sfd, ret, fd;
+ socklen_t len;
+
+ len = sizeof(addr);
+
+ memset(&tls12, 0, sizeof(tls12));
+ tls12.info.version = TLS_1_2_VERSION;
+ tls12.info.cipher_type = TLS_CIPHER_AES_GCM_256;
+
+ addr.sin_family = AF_INET;
+ addr.sin_addr.s_addr = htonl(INADDR_ANY);
+ addr.sin_port = 0;
+
+ fd = socket(AF_INET, SOCK_STREAM, 0);
+ sfd = socket(AF_INET, SOCK_STREAM, 0);
+
+ ret = bind(sfd, &addr, sizeof(addr));
+ ASSERT_EQ(ret, 0);
+ ret = listen(sfd, 10);
+ ASSERT_EQ(ret, 0);
+
+ ret = setsockopt(fd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+ EXPECT_EQ(ret, -1);
+ /* TLS ULP not supported */
+ if (errno == ENOENT)
+ return;
+ EXPECT_EQ(errno, ENOTCONN);
+
+ ret = setsockopt(sfd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+ EXPECT_EQ(ret, -1);
+ EXPECT_EQ(errno, ENOTCONN);
+
+ ret = getsockname(sfd, &addr, &len);
+ ASSERT_EQ(ret, 0);
+
+ ret = connect(fd, &addr, sizeof(addr));
+ ASSERT_EQ(ret, 0);
+
+ ret = setsockopt(fd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+ ASSERT_EQ(ret, 0);
+
+ ret = setsockopt(fd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+ EXPECT_EQ(ret, -1);
+ EXPECT_EQ(errno, EEXIST);
+
+ close(fd);
+ close(sfd);
+}
+
+TEST(keysizes) {
+ struct tls12_crypto_info_aes_gcm_256 tls12;
+ struct sockaddr_in addr;
+ int sfd, ret, fd, cfd;
+ socklen_t len;
+ bool notls;
+
+ notls = false;
+ len = sizeof(addr);
+
+ memset(&tls12, 0, sizeof(tls12));
+ tls12.info.version = TLS_1_2_VERSION;
+ tls12.info.cipher_type = TLS_CIPHER_AES_GCM_256;
+
+ addr.sin_family = AF_INET;
+ addr.sin_addr.s_addr = htonl(INADDR_ANY);
+ addr.sin_port = 0;
+
+ fd = socket(AF_INET, SOCK_STREAM, 0);
+ sfd = socket(AF_INET, SOCK_STREAM, 0);
+
+ ret = bind(sfd, &addr, sizeof(addr));
+ ASSERT_EQ(ret, 0);
+ ret = listen(sfd, 10);
+ ASSERT_EQ(ret, 0);
+
+ ret = getsockname(sfd, &addr, &len);
+ ASSERT_EQ(ret, 0);
+
+ ret = connect(fd, &addr, sizeof(addr));
+ ASSERT_EQ(ret, 0);
+
+ ret = setsockopt(fd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+ if (ret != 0) {
+ notls = true;
+ printf("Failure setting TCP_ULP, testing without tls\n");
+ }
+
+ if (!notls) {
+ ret = setsockopt(fd, SOL_TLS, TLS_TX, &tls12,
+ sizeof(tls12));
+ EXPECT_EQ(ret, 0);
+ }
+
+ cfd = accept(sfd, &addr, &len);
+ ASSERT_GE(cfd, 0);
+
+ if (!notls) {
+ ret = setsockopt(cfd, IPPROTO_TCP, TCP_ULP, "tls",
+ sizeof("tls"));
+ EXPECT_EQ(ret, 0);
+
+ ret = setsockopt(cfd, SOL_TLS, TLS_RX, &tls12,
+ sizeof(tls12));
+ EXPECT_EQ(ret, 0);
+ }
+
+ close(sfd);
+ close(fd);
+ close(cfd);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/traceroute.sh b/tools/testing/selftests/net/traceroute.sh
new file mode 100755
index 000000000..de9ca97ab
--- /dev/null
+++ b/tools/testing/selftests/net/traceroute.sh
@@ -0,0 +1,322 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run traceroute/traceroute6 tests
+#
+
+VERBOSE=0
+PAUSE_ON_FAIL=no
+
+################################################################################
+#
+log_test()
+{
+ local rc=$1
+ local expected=$2
+ local msg="$3"
+
+ if [ ${rc} -eq ${expected} ]; then
+ printf "TEST: %-60s [ OK ]\n" "${msg}"
+ nsuccess=$((nsuccess+1))
+ else
+ ret=1
+ nfail=$((nfail+1))
+ printf "TEST: %-60s [FAIL]\n" "${msg}"
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+ fi
+}
+
+run_cmd()
+{
+ local ns
+ local cmd
+ local out
+ local rc
+
+ ns="$1"
+ shift
+ cmd="$*"
+
+ if [ "$VERBOSE" = "1" ]; then
+ printf " COMMAND: $cmd\n"
+ fi
+
+ out=$(eval ip netns exec ${ns} ${cmd} 2>&1)
+ rc=$?
+ if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+ echo " $out"
+ fi
+
+ [ "$VERBOSE" = "1" ] && echo
+
+ return $rc
+}
+
+################################################################################
+# create namespaces and interconnects
+
+create_ns()
+{
+ local ns=$1
+ local addr=$2
+ local addr6=$3
+
+ [ -z "${addr}" ] && addr="-"
+ [ -z "${addr6}" ] && addr6="-"
+
+ ip netns add ${ns}
+
+ ip netns exec ${ns} ip link set lo up
+ if [ "${addr}" != "-" ]; then
+ ip netns exec ${ns} ip addr add dev lo ${addr}
+ fi
+ if [ "${addr6}" != "-" ]; then
+ ip netns exec ${ns} ip -6 addr add dev lo ${addr6}
+ fi
+
+ ip netns exec ${ns} ip ro add unreachable default metric 8192
+ ip netns exec ${ns} ip -6 ro add unreachable default metric 8192
+
+ ip netns exec ${ns} sysctl -qw net.ipv4.ip_forward=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.forwarding=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.forwarding=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.accept_dad=0
+}
+
+# create veth pair to connect namespaces and apply addresses.
+connect_ns()
+{
+ local ns1=$1
+ local ns1_dev=$2
+ local ns1_addr=$3
+ local ns1_addr6=$4
+ local ns2=$5
+ local ns2_dev=$6
+ local ns2_addr=$7
+ local ns2_addr6=$8
+
+ ip netns exec ${ns1} ip li add ${ns1_dev} type veth peer name tmp
+ ip netns exec ${ns1} ip li set ${ns1_dev} up
+ ip netns exec ${ns1} ip li set tmp netns ${ns2} name ${ns2_dev}
+ ip netns exec ${ns2} ip li set ${ns2_dev} up
+
+ if [ "${ns1_addr}" != "-" ]; then
+ ip netns exec ${ns1} ip addr add dev ${ns1_dev} ${ns1_addr}
+ fi
+
+ if [ "${ns2_addr}" != "-" ]; then
+ ip netns exec ${ns2} ip addr add dev ${ns2_dev} ${ns2_addr}
+ fi
+
+ if [ "${ns1_addr6}" != "-" ]; then
+ ip netns exec ${ns1} ip addr add dev ${ns1_dev} ${ns1_addr6}
+ fi
+
+ if [ "${ns2_addr6}" != "-" ]; then
+ ip netns exec ${ns2} ip addr add dev ${ns2_dev} ${ns2_addr6}
+ fi
+}
+
+################################################################################
+# traceroute6 test
+#
+# Verify that in this scenario
+#
+# ------------------------ N2
+# | |
+# ------ ------ N3 ----
+# | R1 | | R2 |------|H2|
+# ------ ------ ----
+# | |
+# ------------------------ N1
+# |
+# ----
+# |H1|
+# ----
+#
+# where H1's default route goes through R1 and R1's default route goes
+# through R2 over N2, traceroute6 from H1 to H2 reports R2's address
+# on N2 and not N1.
+#
+# Addresses are assigned as follows:
+#
+# N1: 2000:101::/64
+# N2: 2000:102::/64
+# N3: 2000:103::/64
+#
+# R1's host part of address: 1
+# R2's host part of address: 2
+# H1's host part of address: 3
+# H2's host part of address: 4
+#
+# For example:
+# the IPv6 address of R1's interface on N2 is 2000:102::1/64
+
+cleanup_traceroute6()
+{
+ local ns
+
+ for ns in host-1 host-2 router-1 router-2
+ do
+ ip netns del ${ns} 2>/dev/null
+ done
+}
+
+setup_traceroute6()
+{
+ brdev=br0
+
+ # start clean
+ cleanup_traceroute6
+
+ set -e
+ create_ns host-1
+ create_ns host-2
+ create_ns router-1
+ create_ns router-2
+
+ # Setup N3
+ connect_ns router-2 eth3 - 2000:103::2/64 host-2 eth3 - 2000:103::4/64
+ ip netns exec host-2 ip route add default via 2000:103::2
+
+ # Setup N2
+ connect_ns router-1 eth2 - 2000:102::1/64 router-2 eth2 - 2000:102::2/64
+ ip netns exec router-1 ip route add default via 2000:102::2
+
+ # Setup N1. host-1 and router-2 connect to a bridge in router-1.
+ ip netns exec router-1 ip link add name ${brdev} type bridge
+ ip netns exec router-1 ip link set ${brdev} up
+ ip netns exec router-1 ip addr add 2000:101::1/64 dev ${brdev}
+
+ connect_ns host-1 eth0 - 2000:101::3/64 router-1 eth0 - -
+ ip netns exec router-1 ip link set dev eth0 master ${brdev}
+ ip netns exec host-1 ip route add default via 2000:101::1
+
+ connect_ns router-2 eth1 - 2000:101::2/64 router-1 eth1 - -
+ ip netns exec router-1 ip link set dev eth1 master ${brdev}
+
+ # Prime the network
+ ip netns exec host-1 ping6 -c5 2000:103::4 >/dev/null 2>&1
+
+ set +e
+}
+
+run_traceroute6()
+{
+ if [ ! -x "$(command -v traceroute6)" ]; then
+ echo "SKIP: Could not run IPV6 test without traceroute6"
+ return
+ fi
+
+ setup_traceroute6
+
+ # traceroute6 host-2 from host-1 (expects 2000:102::2)
+ run_cmd host-1 "traceroute6 2000:103::4 | grep -q 2000:102::2"
+ log_test $? 0 "IPV6 traceroute"
+
+ cleanup_traceroute6
+}
+
+################################################################################
+# traceroute test
+#
+# Verify that traceroute from H1 to H2 shows 1.0.1.1 in this scenario
+#
+# 1.0.3.1/24
+# ---- 1.0.1.3/24 1.0.1.1/24 ---- 1.0.2.1/24 1.0.2.4/24 ----
+# |H1|--------------------------|R1|--------------------------|H2|
+# ---- N1 ---- N2 ----
+#
+# where net.ipv4.icmp_errors_use_inbound_ifaddr is set on R1 and
+# 1.0.3.1/24 and 1.0.1.1/24 are respectively R1's primary and secondary
+# address on N1.
+#
+
+cleanup_traceroute()
+{
+ local ns
+
+ for ns in host-1 host-2 router
+ do
+ ip netns del ${ns} 2>/dev/null
+ done
+}
+
+setup_traceroute()
+{
+ # start clean
+ cleanup_traceroute
+
+ set -e
+ create_ns host-1
+ create_ns host-2
+ create_ns router
+
+ connect_ns host-1 eth0 1.0.1.3/24 - \
+ router eth1 1.0.3.1/24 -
+ ip netns exec host-1 ip route add default via 1.0.1.1
+
+ ip netns exec router ip addr add 1.0.1.1/24 dev eth1
+ ip netns exec router sysctl -qw \
+ net.ipv4.icmp_errors_use_inbound_ifaddr=1
+
+ connect_ns host-2 eth0 1.0.2.4/24 - \
+ router eth2 1.0.2.1/24 -
+ ip netns exec host-2 ip route add default via 1.0.2.1
+
+ # Prime the network
+ ip netns exec host-1 ping -c5 1.0.2.4 >/dev/null 2>&1
+
+ set +e
+}
+
+run_traceroute()
+{
+ if [ ! -x "$(command -v traceroute)" ]; then
+ echo "SKIP: Could not run IPV4 test without traceroute"
+ return
+ fi
+
+ setup_traceroute
+
+ # traceroute host-2 from host-1 (expects 1.0.1.1). Takes a while.
+ run_cmd host-1 "traceroute 1.0.2.4 | grep -q 1.0.1.1"
+ log_test $? 0 "IPV4 traceroute"
+
+ cleanup_traceroute
+}
+
+################################################################################
+# Run tests
+
+run_tests()
+{
+ run_traceroute6
+ run_traceroute
+}
+
+################################################################################
+# main
+
+declare -i nfail=0
+declare -i nsuccess=0
+
+while getopts :pv o
+do
+ case $o in
+ p) PAUSE_ON_FAIL=yes;;
+ v) VERBOSE=$(($VERBOSE + 1));;
+ *) exit 1;;
+ esac
+done
+
+run_tests
+
+printf "\nTests passed: %3d\n" ${nsuccess}
+printf "Tests failed: %3d\n" ${nfail}
diff --git a/tools/testing/selftests/net/txring_overwrite.c b/tools/testing/selftests/net/txring_overwrite.c
new file mode 100644
index 000000000..7d9ea0394
--- /dev/null
+++ b/tools/testing/selftests/net/txring_overwrite.c
@@ -0,0 +1,179 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Verify that consecutive sends over packet tx_ring are mirrored
+ * with their original content intact.
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <assert.h>
+#include <error.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/filter.h>
+#include <linux/if_packet.h>
+#include <net/ethernet.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/udp.h>
+#include <poll.h>
+#include <pthread.h>
+#include <sched.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/utsname.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+const int eth_off = TPACKET_HDRLEN - sizeof(struct sockaddr_ll);
+const int cfg_frame_size = 1000;
+
+static void build_packet(void *buffer, size_t blen, char payload_char)
+{
+ struct udphdr *udph;
+ struct ethhdr *eth;
+ struct iphdr *iph;
+ size_t off = 0;
+
+ memset(buffer, 0, blen);
+
+ eth = buffer;
+ eth->h_proto = htons(ETH_P_IP);
+
+ off += sizeof(*eth);
+ iph = buffer + off;
+ iph->ttl = 8;
+ iph->ihl = 5;
+ iph->version = 4;
+ iph->saddr = htonl(INADDR_LOOPBACK);
+ iph->daddr = htonl(INADDR_LOOPBACK + 1);
+ iph->protocol = IPPROTO_UDP;
+ iph->tot_len = htons(blen - off);
+ iph->check = 0;
+
+ off += sizeof(*iph);
+ udph = buffer + off;
+ udph->dest = htons(8000);
+ udph->source = htons(8001);
+ udph->len = htons(blen - off);
+ udph->check = 0;
+
+ off += sizeof(*udph);
+ memset(buffer + off, payload_char, blen - off);
+}
+
+static int setup_rx(void)
+{
+ int fdr;
+
+ fdr = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_IP));
+ if (fdr == -1)
+ error(1, errno, "socket r");
+
+ return fdr;
+}
+
+static int setup_tx(char **ring)
+{
+ struct sockaddr_ll laddr = {};
+ struct tpacket_req req = {};
+ int fdt;
+
+ fdt = socket(PF_PACKET, SOCK_RAW, 0);
+ if (fdt == -1)
+ error(1, errno, "socket t");
+
+ laddr.sll_family = AF_PACKET;
+ laddr.sll_protocol = htons(0);
+ laddr.sll_ifindex = if_nametoindex("lo");
+ if (!laddr.sll_ifindex)
+ error(1, errno, "if_nametoindex");
+
+ if (bind(fdt, (void *)&laddr, sizeof(laddr)))
+ error(1, errno, "bind fdt");
+
+ req.tp_block_size = getpagesize();
+ req.tp_block_nr = 1;
+ req.tp_frame_size = getpagesize();
+ req.tp_frame_nr = 1;
+
+ if (setsockopt(fdt, SOL_PACKET, PACKET_TX_RING,
+ (void *)&req, sizeof(req)))
+ error(1, errno, "setsockopt ring");
+
+ *ring = mmap(0, req.tp_block_size * req.tp_block_nr,
+ PROT_READ | PROT_WRITE, MAP_SHARED, fdt, 0);
+ if (*ring == MAP_FAILED)
+ error(1, errno, "mmap");
+
+ return fdt;
+}
+
+static void send_pkt(int fdt, void *slot, char payload_char)
+{
+ struct tpacket_hdr *header = slot;
+ int ret;
+
+ while (header->tp_status != TP_STATUS_AVAILABLE)
+ usleep(1000);
+
+ build_packet(slot + eth_off, cfg_frame_size, payload_char);
+
+ header->tp_len = cfg_frame_size;
+ header->tp_status = TP_STATUS_SEND_REQUEST;
+
+ ret = sendto(fdt, NULL, 0, 0, NULL, 0);
+ if (ret == -1)
+ error(1, errno, "kick tx");
+}
+
+static int read_verify_pkt(int fdr, char payload_char)
+{
+ char buf[100];
+ int ret;
+
+ ret = read(fdr, buf, sizeof(buf));
+ if (ret != sizeof(buf))
+ error(1, errno, "read");
+
+ if (buf[60] != payload_char) {
+ printf("wrong pattern: 0x%x != 0x%x\n", buf[60], payload_char);
+ return 1;
+ }
+
+ printf("read: %c (0x%x)\n", buf[60], buf[60]);
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ const char payload_patterns[] = "ab";
+ char *ring;
+ int fdr, fdt, ret = 0;
+
+ fdr = setup_rx();
+ fdt = setup_tx(&ring);
+
+ send_pkt(fdt, ring, payload_patterns[0]);
+ send_pkt(fdt, ring, payload_patterns[1]);
+
+ ret |= read_verify_pkt(fdr, payload_patterns[0]);
+ ret |= read_verify_pkt(fdr, payload_patterns[1]);
+
+ if (close(fdt))
+ error(1, errno, "close t");
+ if (close(fdr))
+ error(1, errno, "close r");
+
+ return ret;
+}
diff --git a/tools/testing/selftests/net/txtimestamp.c b/tools/testing/selftests/net/txtimestamp.c
new file mode 100644
index 000000000..fabb1d555
--- /dev/null
+++ b/tools/testing/selftests/net/txtimestamp.c
@@ -0,0 +1,922 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2014 Google Inc.
+ * Author: willemb@google.com (Willem de Bruijn)
+ *
+ * Test software tx timestamping, including
+ *
+ * - SCHED, SND and ACK timestamps
+ * - RAW, UDP and TCP
+ * - IPv4 and IPv6
+ * - various packet sizes (to test GSO and TSO)
+ *
+ * Consult the command line arguments for help on running
+ * the various testcases.
+ *
+ * This test requires a dummy TCP server.
+ * A simple `nc6 [-u] -l -p $DESTPORT` will do
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <asm/types.h>
+#include <error.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <linux/errqueue.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <linux/ipv6.h>
+#include <linux/net_tstamp.h>
+#include <netdb.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/udp.h>
+#include <netinet/tcp.h>
+#include <poll.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/epoll.h>
+#include <sys/ioctl.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <time.h>
+#include <unistd.h>
+
+#define NSEC_PER_USEC 1000L
+#define USEC_PER_SEC 1000000L
+#define NSEC_PER_SEC 1000000000LL
+
+/* command line parameters */
+static int cfg_proto = SOCK_STREAM;
+static int cfg_ipproto = IPPROTO_TCP;
+static int cfg_num_pkts = 4;
+static int do_ipv4 = 1;
+static int do_ipv6 = 1;
+static int cfg_payload_len = 10;
+static int cfg_poll_timeout = 100;
+static int cfg_delay_snd;
+static int cfg_delay_ack;
+static int cfg_delay_tolerance_usec = 500;
+static bool cfg_show_payload;
+static bool cfg_do_pktinfo;
+static bool cfg_busy_poll;
+static int cfg_sleep_usec = 50 * 1000;
+static bool cfg_loop_nodata;
+static bool cfg_use_cmsg;
+static bool cfg_use_pf_packet;
+static bool cfg_use_epoll;
+static bool cfg_epollet;
+static bool cfg_do_listen;
+static uint16_t dest_port = 9000;
+static bool cfg_print_nsec;
+
+static struct sockaddr_in daddr;
+static struct sockaddr_in6 daddr6;
+static struct timespec ts_usr;
+
+static int saved_tskey = -1;
+static int saved_tskey_type = -1;
+
+struct timing_event {
+ int64_t min;
+ int64_t max;
+ int64_t total;
+ int count;
+};
+
+static struct timing_event usr_enq;
+static struct timing_event usr_snd;
+static struct timing_event usr_ack;
+
+static bool test_failed;
+
+static int64_t timespec_to_ns64(struct timespec *ts)
+{
+ return ts->tv_sec * NSEC_PER_SEC + ts->tv_nsec;
+}
+
+static int64_t timespec_to_us64(struct timespec *ts)
+{
+ return ts->tv_sec * USEC_PER_SEC + ts->tv_nsec / NSEC_PER_USEC;
+}
+
+static void init_timing_event(struct timing_event *te)
+{
+ te->min = INT64_MAX;
+ te->max = 0;
+ te->total = 0;
+ te->count = 0;
+}
+
+static void add_timing_event(struct timing_event *te,
+ struct timespec *t_start, struct timespec *t_end)
+{
+ int64_t ts_delta = timespec_to_ns64(t_end) - timespec_to_ns64(t_start);
+
+ te->count++;
+ if (ts_delta < te->min)
+ te->min = ts_delta;
+ if (ts_delta > te->max)
+ te->max = ts_delta;
+ te->total += ts_delta;
+}
+
+static void validate_key(int tskey, int tstype)
+{
+ int stepsize;
+
+ /* compare key for each subsequent request
+ * must only test for one type, the first one requested
+ */
+ if (saved_tskey == -1)
+ saved_tskey_type = tstype;
+ else if (saved_tskey_type != tstype)
+ return;
+
+ stepsize = cfg_proto == SOCK_STREAM ? cfg_payload_len : 1;
+ if (tskey != saved_tskey + stepsize) {
+ fprintf(stderr, "ERROR: key %d, expected %d\n",
+ tskey, saved_tskey + stepsize);
+ test_failed = true;
+ }
+
+ saved_tskey = tskey;
+}
+
+static void validate_timestamp(struct timespec *cur, int min_delay)
+{
+ int64_t cur64, start64;
+ int max_delay;
+
+ cur64 = timespec_to_us64(cur);
+ start64 = timespec_to_us64(&ts_usr);
+ max_delay = min_delay + cfg_delay_tolerance_usec;
+
+ if (cur64 < start64 + min_delay || cur64 > start64 + max_delay) {
+ fprintf(stderr, "ERROR: %lu us expected between %d and %d\n",
+ cur64 - start64, min_delay, max_delay);
+ test_failed = true;
+ }
+}
+
+static void __print_ts_delta_formatted(int64_t ts_delta)
+{
+ if (cfg_print_nsec)
+ fprintf(stderr, "%lu ns", ts_delta);
+ else
+ fprintf(stderr, "%lu us", ts_delta / NSEC_PER_USEC);
+}
+
+static void __print_timestamp(const char *name, struct timespec *cur,
+ uint32_t key, int payload_len)
+{
+ int64_t ts_delta;
+
+ if (!(cur->tv_sec | cur->tv_nsec))
+ return;
+
+ if (cfg_print_nsec)
+ fprintf(stderr, " %s: %lu s %lu ns (seq=%u, len=%u)",
+ name, cur->tv_sec, cur->tv_nsec,
+ key, payload_len);
+ else
+ fprintf(stderr, " %s: %lu s %lu us (seq=%u, len=%u)",
+ name, cur->tv_sec, cur->tv_nsec / NSEC_PER_USEC,
+ key, payload_len);
+
+ if (cur != &ts_usr) {
+ ts_delta = timespec_to_ns64(cur) - timespec_to_ns64(&ts_usr);
+ fprintf(stderr, " (USR +");
+ __print_ts_delta_formatted(ts_delta);
+ fprintf(stderr, ")");
+ }
+
+ fprintf(stderr, "\n");
+}
+
+static void print_timestamp_usr(void)
+{
+ if (clock_gettime(CLOCK_REALTIME, &ts_usr))
+ error(1, errno, "clock_gettime");
+
+ __print_timestamp(" USR", &ts_usr, 0, 0);
+}
+
+static void print_timestamp(struct scm_timestamping *tss, int tstype,
+ int tskey, int payload_len)
+{
+ const char *tsname;
+
+ validate_key(tskey, tstype);
+
+ switch (tstype) {
+ case SCM_TSTAMP_SCHED:
+ tsname = " ENQ";
+ validate_timestamp(&tss->ts[0], 0);
+ add_timing_event(&usr_enq, &ts_usr, &tss->ts[0]);
+ break;
+ case SCM_TSTAMP_SND:
+ tsname = " SND";
+ validate_timestamp(&tss->ts[0], cfg_delay_snd);
+ add_timing_event(&usr_snd, &ts_usr, &tss->ts[0]);
+ break;
+ case SCM_TSTAMP_ACK:
+ tsname = " ACK";
+ validate_timestamp(&tss->ts[0], cfg_delay_ack);
+ add_timing_event(&usr_ack, &ts_usr, &tss->ts[0]);
+ break;
+ default:
+ error(1, 0, "unknown timestamp type: %u",
+ tstype);
+ }
+ __print_timestamp(tsname, &tss->ts[0], tskey, payload_len);
+}
+
+static void print_timing_event(char *name, struct timing_event *te)
+{
+ if (!te->count)
+ return;
+
+ fprintf(stderr, " %s: count=%d", name, te->count);
+ fprintf(stderr, ", avg=");
+ __print_ts_delta_formatted((int64_t)(te->total / te->count));
+ fprintf(stderr, ", min=");
+ __print_ts_delta_formatted(te->min);
+ fprintf(stderr, ", max=");
+ __print_ts_delta_formatted(te->max);
+ fprintf(stderr, "\n");
+}
+
+/* TODO: convert to check_and_print payload once API is stable */
+static void print_payload(char *data, int len)
+{
+ int i;
+
+ if (!len)
+ return;
+
+ if (len > 70)
+ len = 70;
+
+ fprintf(stderr, "payload: ");
+ for (i = 0; i < len; i++)
+ fprintf(stderr, "%02hhx ", data[i]);
+ fprintf(stderr, "\n");
+}
+
+static void print_pktinfo(int family, int ifindex, void *saddr, void *daddr)
+{
+ char sa[INET6_ADDRSTRLEN], da[INET6_ADDRSTRLEN];
+
+ fprintf(stderr, " pktinfo: ifindex=%u src=%s dst=%s\n",
+ ifindex,
+ saddr ? inet_ntop(family, saddr, sa, sizeof(sa)) : "unknown",
+ daddr ? inet_ntop(family, daddr, da, sizeof(da)) : "unknown");
+}
+
+static void __epoll(int epfd)
+{
+ struct epoll_event events;
+ int ret;
+
+ memset(&events, 0, sizeof(events));
+ ret = epoll_wait(epfd, &events, 1, cfg_poll_timeout);
+ if (ret != 1)
+ error(1, errno, "epoll_wait");
+}
+
+static void __poll(int fd)
+{
+ struct pollfd pollfd;
+ int ret;
+
+ memset(&pollfd, 0, sizeof(pollfd));
+ pollfd.fd = fd;
+ ret = poll(&pollfd, 1, cfg_poll_timeout);
+ if (ret != 1)
+ error(1, errno, "poll");
+}
+
+static void __recv_errmsg_cmsg(struct msghdr *msg, int payload_len)
+{
+ struct sock_extended_err *serr = NULL;
+ struct scm_timestamping *tss = NULL;
+ struct cmsghdr *cm;
+ int batch = 0;
+
+ for (cm = CMSG_FIRSTHDR(msg);
+ cm && cm->cmsg_len;
+ cm = CMSG_NXTHDR(msg, cm)) {
+ if (cm->cmsg_level == SOL_SOCKET &&
+ cm->cmsg_type == SCM_TIMESTAMPING) {
+ tss = (void *) CMSG_DATA(cm);
+ } else if ((cm->cmsg_level == SOL_IP &&
+ cm->cmsg_type == IP_RECVERR) ||
+ (cm->cmsg_level == SOL_IPV6 &&
+ cm->cmsg_type == IPV6_RECVERR) ||
+ (cm->cmsg_level == SOL_PACKET &&
+ cm->cmsg_type == PACKET_TX_TIMESTAMP)) {
+ serr = (void *) CMSG_DATA(cm);
+ if (serr->ee_errno != ENOMSG ||
+ serr->ee_origin != SO_EE_ORIGIN_TIMESTAMPING) {
+ fprintf(stderr, "unknown ip error %d %d\n",
+ serr->ee_errno,
+ serr->ee_origin);
+ serr = NULL;
+ }
+ } else if (cm->cmsg_level == SOL_IP &&
+ cm->cmsg_type == IP_PKTINFO) {
+ struct in_pktinfo *info = (void *) CMSG_DATA(cm);
+ print_pktinfo(AF_INET, info->ipi_ifindex,
+ &info->ipi_spec_dst, &info->ipi_addr);
+ } else if (cm->cmsg_level == SOL_IPV6 &&
+ cm->cmsg_type == IPV6_PKTINFO) {
+ struct in6_pktinfo *info6 = (void *) CMSG_DATA(cm);
+ print_pktinfo(AF_INET6, info6->ipi6_ifindex,
+ NULL, &info6->ipi6_addr);
+ } else
+ fprintf(stderr, "unknown cmsg %d,%d\n",
+ cm->cmsg_level, cm->cmsg_type);
+
+ if (serr && tss) {
+ print_timestamp(tss, serr->ee_info, serr->ee_data,
+ payload_len);
+ serr = NULL;
+ tss = NULL;
+ batch++;
+ }
+ }
+
+ if (batch > 1)
+ fprintf(stderr, "batched %d timestamps\n", batch);
+}
+
+static int recv_errmsg(int fd)
+{
+ static char ctrl[1024 /* overprovision*/];
+ static struct msghdr msg;
+ struct iovec entry;
+ static char *data;
+ int ret = 0;
+
+ data = malloc(cfg_payload_len);
+ if (!data)
+ error(1, 0, "malloc");
+
+ memset(&msg, 0, sizeof(msg));
+ memset(&entry, 0, sizeof(entry));
+ memset(ctrl, 0, sizeof(ctrl));
+
+ entry.iov_base = data;
+ entry.iov_len = cfg_payload_len;
+ msg.msg_iov = &entry;
+ msg.msg_iovlen = 1;
+ msg.msg_name = NULL;
+ msg.msg_namelen = 0;
+ msg.msg_control = ctrl;
+ msg.msg_controllen = sizeof(ctrl);
+
+ ret = recvmsg(fd, &msg, MSG_ERRQUEUE);
+ if (ret == -1 && errno != EAGAIN)
+ error(1, errno, "recvmsg");
+
+ if (ret >= 0) {
+ __recv_errmsg_cmsg(&msg, ret);
+ if (cfg_show_payload)
+ print_payload(data, cfg_payload_len);
+ }
+
+ free(data);
+ return ret == -1;
+}
+
+static uint16_t get_ip_csum(const uint16_t *start, int num_words,
+ unsigned long sum)
+{
+ int i;
+
+ for (i = 0; i < num_words; i++)
+ sum += start[i];
+
+ while (sum >> 16)
+ sum = (sum & 0xFFFF) + (sum >> 16);
+
+ return ~sum;
+}
+
+static uint16_t get_udp_csum(const struct udphdr *udph, int alen)
+{
+ unsigned long pseudo_sum, csum_len;
+ const void *csum_start = udph;
+
+ pseudo_sum = htons(IPPROTO_UDP);
+ pseudo_sum += udph->len;
+
+ /* checksum ip(v6) addresses + udp header + payload */
+ csum_start -= alen * 2;
+ csum_len = ntohs(udph->len) + alen * 2;
+
+ return get_ip_csum(csum_start, csum_len >> 1, pseudo_sum);
+}
+
+static int fill_header_ipv4(void *p)
+{
+ struct iphdr *iph = p;
+
+ memset(iph, 0, sizeof(*iph));
+
+ iph->ihl = 5;
+ iph->version = 4;
+ iph->ttl = 2;
+ iph->saddr = daddr.sin_addr.s_addr; /* set for udp csum calc */
+ iph->daddr = daddr.sin_addr.s_addr;
+ iph->protocol = IPPROTO_UDP;
+
+ /* kernel writes saddr, csum, len */
+
+ return sizeof(*iph);
+}
+
+static int fill_header_ipv6(void *p)
+{
+ struct ipv6hdr *ip6h = p;
+
+ memset(ip6h, 0, sizeof(*ip6h));
+
+ ip6h->version = 6;
+ ip6h->payload_len = htons(sizeof(struct udphdr) + cfg_payload_len);
+ ip6h->nexthdr = IPPROTO_UDP;
+ ip6h->hop_limit = 64;
+
+ ip6h->saddr = daddr6.sin6_addr;
+ ip6h->daddr = daddr6.sin6_addr;
+
+ /* kernel does not write saddr in case of ipv6 */
+
+ return sizeof(*ip6h);
+}
+
+static void fill_header_udp(void *p, bool is_ipv4)
+{
+ struct udphdr *udph = p;
+
+ udph->source = ntohs(dest_port + 1); /* spoof */
+ udph->dest = ntohs(dest_port);
+ udph->len = ntohs(sizeof(*udph) + cfg_payload_len);
+ udph->check = 0;
+
+ udph->check = get_udp_csum(udph, is_ipv4 ? sizeof(struct in_addr) :
+ sizeof(struct in6_addr));
+}
+
+static void do_test(int family, unsigned int report_opt)
+{
+ char control[CMSG_SPACE(sizeof(uint32_t))];
+ struct sockaddr_ll laddr;
+ unsigned int sock_opt;
+ struct cmsghdr *cmsg;
+ struct msghdr msg;
+ struct iovec iov;
+ char *buf;
+ int fd, i, val = 1, total_len, epfd = 0;
+
+ init_timing_event(&usr_enq);
+ init_timing_event(&usr_snd);
+ init_timing_event(&usr_ack);
+
+ total_len = cfg_payload_len;
+ if (cfg_use_pf_packet || cfg_proto == SOCK_RAW) {
+ total_len += sizeof(struct udphdr);
+ if (cfg_use_pf_packet || cfg_ipproto == IPPROTO_RAW) {
+ if (family == PF_INET)
+ total_len += sizeof(struct iphdr);
+ else
+ total_len += sizeof(struct ipv6hdr);
+ }
+ /* special case, only rawv6_sendmsg:
+ * pass proto in sin6_port if not connected
+ * also see ANK comment in net/ipv4/raw.c
+ */
+ daddr6.sin6_port = htons(cfg_ipproto);
+ }
+
+ buf = malloc(total_len);
+ if (!buf)
+ error(1, 0, "malloc");
+
+ fd = socket(cfg_use_pf_packet ? PF_PACKET : family,
+ cfg_proto, cfg_ipproto);
+ if (fd < 0)
+ error(1, errno, "socket");
+
+ if (cfg_use_epoll) {
+ struct epoll_event ev;
+
+ memset(&ev, 0, sizeof(ev));
+ ev.data.fd = fd;
+ if (cfg_epollet)
+ ev.events |= EPOLLET;
+ epfd = epoll_create(1);
+ if (epfd <= 0)
+ error(1, errno, "epoll_create");
+ if (epoll_ctl(epfd, EPOLL_CTL_ADD, fd, &ev))
+ error(1, errno, "epoll_ctl");
+ }
+
+ /* reset expected key on each new socket */
+ saved_tskey = -1;
+
+ if (cfg_proto == SOCK_STREAM) {
+ if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY,
+ (char*) &val, sizeof(val)))
+ error(1, 0, "setsockopt no nagle");
+
+ if (family == PF_INET) {
+ if (connect(fd, (void *) &daddr, sizeof(daddr)))
+ error(1, errno, "connect ipv4");
+ } else {
+ if (connect(fd, (void *) &daddr6, sizeof(daddr6)))
+ error(1, errno, "connect ipv6");
+ }
+ }
+
+ if (cfg_do_pktinfo) {
+ if (family == AF_INET6) {
+ if (setsockopt(fd, SOL_IPV6, IPV6_RECVPKTINFO,
+ &val, sizeof(val)))
+ error(1, errno, "setsockopt pktinfo ipv6");
+ } else {
+ if (setsockopt(fd, SOL_IP, IP_PKTINFO,
+ &val, sizeof(val)))
+ error(1, errno, "setsockopt pktinfo ipv4");
+ }
+ }
+
+ sock_opt = SOF_TIMESTAMPING_SOFTWARE |
+ SOF_TIMESTAMPING_OPT_CMSG |
+ SOF_TIMESTAMPING_OPT_ID;
+
+ if (!cfg_use_cmsg)
+ sock_opt |= report_opt;
+
+ if (cfg_loop_nodata)
+ sock_opt |= SOF_TIMESTAMPING_OPT_TSONLY;
+
+ if (setsockopt(fd, SOL_SOCKET, SO_TIMESTAMPING,
+ (char *) &sock_opt, sizeof(sock_opt)))
+ error(1, 0, "setsockopt timestamping");
+
+ for (i = 0; i < cfg_num_pkts; i++) {
+ memset(&msg, 0, sizeof(msg));
+ memset(buf, 'a' + i, total_len);
+
+ if (cfg_use_pf_packet || cfg_proto == SOCK_RAW) {
+ int off = 0;
+
+ if (cfg_use_pf_packet || cfg_ipproto == IPPROTO_RAW) {
+ if (family == PF_INET)
+ off = fill_header_ipv4(buf);
+ else
+ off = fill_header_ipv6(buf);
+ }
+
+ fill_header_udp(buf + off, family == PF_INET);
+ }
+
+ print_timestamp_usr();
+
+ iov.iov_base = buf;
+ iov.iov_len = total_len;
+
+ if (cfg_proto != SOCK_STREAM) {
+ if (cfg_use_pf_packet) {
+ memset(&laddr, 0, sizeof(laddr));
+
+ laddr.sll_family = AF_PACKET;
+ laddr.sll_ifindex = 1;
+ laddr.sll_protocol = htons(family == AF_INET ? ETH_P_IP : ETH_P_IPV6);
+ laddr.sll_halen = ETH_ALEN;
+
+ msg.msg_name = (void *)&laddr;
+ msg.msg_namelen = sizeof(laddr);
+ } else if (family == PF_INET) {
+ msg.msg_name = (void *)&daddr;
+ msg.msg_namelen = sizeof(daddr);
+ } else {
+ msg.msg_name = (void *)&daddr6;
+ msg.msg_namelen = sizeof(daddr6);
+ }
+ }
+
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+
+ if (cfg_use_cmsg) {
+ memset(control, 0, sizeof(control));
+
+ msg.msg_control = control;
+ msg.msg_controllen = sizeof(control);
+
+ cmsg = CMSG_FIRSTHDR(&msg);
+ cmsg->cmsg_level = SOL_SOCKET;
+ cmsg->cmsg_type = SO_TIMESTAMPING;
+ cmsg->cmsg_len = CMSG_LEN(sizeof(uint32_t));
+
+ *((uint32_t *) CMSG_DATA(cmsg)) = report_opt;
+ }
+
+ val = sendmsg(fd, &msg, 0);
+ if (val != total_len)
+ error(1, errno, "send");
+
+ /* wait for all errors to be queued, else ACKs arrive OOO */
+ if (cfg_sleep_usec)
+ usleep(cfg_sleep_usec);
+
+ if (!cfg_busy_poll) {
+ if (cfg_use_epoll)
+ __epoll(epfd);
+ else
+ __poll(fd);
+ }
+
+ while (!recv_errmsg(fd)) {}
+ }
+
+ print_timing_event("USR-ENQ", &usr_enq);
+ print_timing_event("USR-SND", &usr_snd);
+ print_timing_event("USR-ACK", &usr_ack);
+
+ if (close(fd))
+ error(1, errno, "close");
+
+ free(buf);
+ usleep(100 * NSEC_PER_USEC);
+}
+
+static void __attribute__((noreturn)) usage(const char *filepath)
+{
+ fprintf(stderr, "\nUsage: %s [options] hostname\n"
+ "\nwhere options are:\n"
+ " -4: only IPv4\n"
+ " -6: only IPv6\n"
+ " -h: show this message\n"
+ " -b: busy poll to read from error queue\n"
+ " -c N: number of packets for each test\n"
+ " -C: use cmsg to set tstamp recording options\n"
+ " -e: use level-triggered epoll() instead of poll()\n"
+ " -E: use event-triggered epoll() instead of poll()\n"
+ " -F: poll()/epoll() waits forever for an event\n"
+ " -I: request PKTINFO\n"
+ " -l N: send N bytes at a time\n"
+ " -L listen on hostname and port\n"
+ " -n: set no-payload option\n"
+ " -N: print timestamps and durations in nsec (instead of usec)\n"
+ " -p N: connect to port N\n"
+ " -P: use PF_PACKET\n"
+ " -r: use raw\n"
+ " -R: use raw (IP_HDRINCL)\n"
+ " -S N: usec to sleep before reading error queue\n"
+ " -t N: tolerance (usec) for timestamp validation\n"
+ " -u: use udp\n"
+ " -v: validate SND delay (usec)\n"
+ " -V: validate ACK delay (usec)\n"
+ " -x: show payload (up to 70 bytes)\n",
+ filepath);
+ exit(1);
+}
+
+static void parse_opt(int argc, char **argv)
+{
+ int proto_count = 0;
+ int c;
+
+ while ((c = getopt(argc, argv,
+ "46bc:CeEFhIl:LnNp:PrRS:t:uv:V:x")) != -1) {
+ switch (c) {
+ case '4':
+ do_ipv6 = 0;
+ break;
+ case '6':
+ do_ipv4 = 0;
+ break;
+ case 'b':
+ cfg_busy_poll = true;
+ break;
+ case 'c':
+ cfg_num_pkts = strtoul(optarg, NULL, 10);
+ break;
+ case 'C':
+ cfg_use_cmsg = true;
+ break;
+ case 'e':
+ cfg_use_epoll = true;
+ break;
+ case 'E':
+ cfg_use_epoll = true;
+ cfg_epollet = true;
+ case 'F':
+ cfg_poll_timeout = -1;
+ break;
+ case 'I':
+ cfg_do_pktinfo = true;
+ break;
+ case 'l':
+ cfg_payload_len = strtoul(optarg, NULL, 10);
+ break;
+ case 'L':
+ cfg_do_listen = true;
+ break;
+ case 'n':
+ cfg_loop_nodata = true;
+ break;
+ case 'N':
+ cfg_print_nsec = true;
+ break;
+ case 'p':
+ dest_port = strtoul(optarg, NULL, 10);
+ break;
+ case 'P':
+ proto_count++;
+ cfg_use_pf_packet = true;
+ cfg_proto = SOCK_DGRAM;
+ cfg_ipproto = 0;
+ break;
+ case 'r':
+ proto_count++;
+ cfg_proto = SOCK_RAW;
+ cfg_ipproto = IPPROTO_UDP;
+ break;
+ case 'R':
+ proto_count++;
+ cfg_proto = SOCK_RAW;
+ cfg_ipproto = IPPROTO_RAW;
+ break;
+ case 'S':
+ cfg_sleep_usec = strtoul(optarg, NULL, 10);
+ break;
+ case 't':
+ cfg_delay_tolerance_usec = strtoul(optarg, NULL, 10);
+ break;
+ case 'u':
+ proto_count++;
+ cfg_proto = SOCK_DGRAM;
+ cfg_ipproto = IPPROTO_UDP;
+ break;
+ case 'v':
+ cfg_delay_snd = strtoul(optarg, NULL, 10);
+ break;
+ case 'V':
+ cfg_delay_ack = strtoul(optarg, NULL, 10);
+ break;
+ case 'x':
+ cfg_show_payload = true;
+ break;
+ case 'h':
+ default:
+ usage(argv[0]);
+ }
+ }
+
+ if (!cfg_payload_len)
+ error(1, 0, "payload may not be nonzero");
+ if (cfg_proto != SOCK_STREAM && cfg_payload_len > 1472)
+ error(1, 0, "udp packet might exceed expected MTU");
+ if (!do_ipv4 && !do_ipv6)
+ error(1, 0, "pass -4 or -6, not both");
+ if (proto_count > 1)
+ error(1, 0, "pass -P, -r, -R or -u, not multiple");
+ if (cfg_do_pktinfo && cfg_use_pf_packet)
+ error(1, 0, "cannot ask for pktinfo over pf_packet");
+ if (cfg_busy_poll && cfg_use_epoll)
+ error(1, 0, "pass epoll or busy_poll, not both");
+
+ if (optind != argc - 1)
+ error(1, 0, "missing required hostname argument");
+}
+
+static void resolve_hostname(const char *hostname)
+{
+ struct addrinfo hints = { .ai_family = do_ipv4 ? AF_INET : AF_INET6 };
+ struct addrinfo *addrs, *cur;
+ int have_ipv4 = 0, have_ipv6 = 0;
+
+retry:
+ if (getaddrinfo(hostname, NULL, &hints, &addrs))
+ error(1, errno, "getaddrinfo");
+
+ cur = addrs;
+ while (cur && !have_ipv4 && !have_ipv6) {
+ if (!have_ipv4 && cur->ai_family == AF_INET) {
+ memcpy(&daddr, cur->ai_addr, sizeof(daddr));
+ daddr.sin_port = htons(dest_port);
+ have_ipv4 = 1;
+ }
+ else if (!have_ipv6 && cur->ai_family == AF_INET6) {
+ memcpy(&daddr6, cur->ai_addr, sizeof(daddr6));
+ daddr6.sin6_port = htons(dest_port);
+ have_ipv6 = 1;
+ }
+ cur = cur->ai_next;
+ }
+ if (addrs)
+ freeaddrinfo(addrs);
+
+ if (do_ipv6 && hints.ai_family != AF_INET6) {
+ hints.ai_family = AF_INET6;
+ goto retry;
+ }
+
+ do_ipv4 &= have_ipv4;
+ do_ipv6 &= have_ipv6;
+}
+
+static void do_listen(int family, void *addr, int alen)
+{
+ int fd, type;
+
+ type = cfg_proto == SOCK_RAW ? SOCK_DGRAM : cfg_proto;
+
+ fd = socket(family, type, 0);
+ if (fd == -1)
+ error(1, errno, "socket rx");
+
+ if (bind(fd, addr, alen))
+ error(1, errno, "bind rx");
+
+ if (type == SOCK_STREAM && listen(fd, 10))
+ error(1, errno, "listen rx");
+
+ /* leave fd open, will be closed on process exit.
+ * this enables connect() to succeed and avoids icmp replies
+ */
+}
+
+static void do_main(int family)
+{
+ fprintf(stderr, "family: %s %s\n",
+ family == PF_INET ? "INET" : "INET6",
+ cfg_use_pf_packet ? "(PF_PACKET)" : "");
+
+ fprintf(stderr, "test SND\n");
+ do_test(family, SOF_TIMESTAMPING_TX_SOFTWARE);
+
+ fprintf(stderr, "test ENQ\n");
+ do_test(family, SOF_TIMESTAMPING_TX_SCHED);
+
+ fprintf(stderr, "test ENQ + SND\n");
+ do_test(family, SOF_TIMESTAMPING_TX_SCHED |
+ SOF_TIMESTAMPING_TX_SOFTWARE);
+
+ if (cfg_proto == SOCK_STREAM) {
+ fprintf(stderr, "\ntest ACK\n");
+ do_test(family, SOF_TIMESTAMPING_TX_ACK);
+
+ fprintf(stderr, "\ntest SND + ACK\n");
+ do_test(family, SOF_TIMESTAMPING_TX_SOFTWARE |
+ SOF_TIMESTAMPING_TX_ACK);
+
+ fprintf(stderr, "\ntest ENQ + SND + ACK\n");
+ do_test(family, SOF_TIMESTAMPING_TX_SCHED |
+ SOF_TIMESTAMPING_TX_SOFTWARE |
+ SOF_TIMESTAMPING_TX_ACK);
+ }
+}
+
+const char *sock_names[] = { NULL, "TCP", "UDP", "RAW" };
+
+int main(int argc, char **argv)
+{
+ if (argc == 1)
+ usage(argv[0]);
+
+ parse_opt(argc, argv);
+ resolve_hostname(argv[argc - 1]);
+
+ fprintf(stderr, "protocol: %s\n", sock_names[cfg_proto]);
+ fprintf(stderr, "payload: %u\n", cfg_payload_len);
+ fprintf(stderr, "server port: %u\n", dest_port);
+ fprintf(stderr, "\n");
+
+ if (do_ipv4) {
+ if (cfg_do_listen)
+ do_listen(PF_INET, &daddr, sizeof(daddr));
+ do_main(PF_INET);
+ }
+
+ if (do_ipv6) {
+ if (cfg_do_listen)
+ do_listen(PF_INET6, &daddr6, sizeof(daddr6));
+ do_main(PF_INET6);
+ }
+
+ return test_failed;
+}
diff --git a/tools/testing/selftests/net/txtimestamp.sh b/tools/testing/selftests/net/txtimestamp.sh
new file mode 100755
index 000000000..31637769f
--- /dev/null
+++ b/tools/testing/selftests/net/txtimestamp.sh
@@ -0,0 +1,82 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Send packets with transmit timestamps over loopback with netem
+# Verify that timestamps correspond to netem delay
+
+set -e
+
+setup() {
+ # set 1ms delay on lo egress
+ tc qdisc add dev lo root netem delay 1ms
+
+ # set 2ms delay on ifb0 egress
+ modprobe ifb
+ ip link add ifb_netem0 type ifb
+ ip link set dev ifb_netem0 up
+ tc qdisc add dev ifb_netem0 root netem delay 2ms
+
+ # redirect lo ingress through ifb0 egress
+ tc qdisc add dev lo handle ffff: ingress
+ tc filter add dev lo parent ffff: \
+ u32 match mark 0 0xffff \
+ action mirred egress redirect dev ifb_netem0
+}
+
+run_test_v4v6() {
+ # SND will be delayed 1000us
+ # ACK will be delayed 6000us: 1 + 2 ms round-trip
+ local -r args="$@ -v 1000 -V 6000"
+
+ ./txtimestamp ${args} -4 -L 127.0.0.1
+ ./txtimestamp ${args} -6 -L ::1
+}
+
+run_test_tcpudpraw() {
+ local -r args=$@
+
+ run_test_v4v6 ${args} # tcp
+ run_test_v4v6 ${args} -u # udp
+ run_test_v4v6 ${args} -r # raw
+ run_test_v4v6 ${args} -R # raw (IPPROTO_RAW)
+ run_test_v4v6 ${args} -P # pf_packet
+}
+
+run_test_all() {
+ setup
+ run_test_tcpudpraw # setsockopt
+ run_test_tcpudpraw -C # cmsg
+ run_test_tcpudpraw -n # timestamp w/o data
+ echo "OK. All tests passed"
+}
+
+run_test_one() {
+ setup
+ ./txtimestamp $@
+}
+
+usage() {
+ echo "Usage: $0 [ -r | --run ] <txtimestamp args> | [ -h | --help ]"
+ echo " (no args) Run all tests"
+ echo " -r|--run Run an individual test with arguments"
+ echo " -h|--help Help"
+}
+
+main() {
+ if [[ $# -eq 0 ]]; then
+ run_test_all
+ else
+ if [[ "$1" = "-r" || "$1" == "--run" ]]; then
+ shift
+ run_test_one $@
+ else
+ usage
+ fi
+ fi
+}
+
+if [[ -z "$(ip netns identify)" ]]; then
+ ./in_netns.sh $0 $@
+else
+ main $@
+fi
diff --git a/tools/testing/selftests/net/udpgro.sh b/tools/testing/selftests/net/udpgro.sh
new file mode 100755
index 000000000..f8a19f548
--- /dev/null
+++ b/tools/testing/selftests/net/udpgro.sh
@@ -0,0 +1,216 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run a series of udpgro functional tests.
+
+readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
+
+# set global exit status, but never reset nonzero one.
+check_err()
+{
+ if [ $ret -eq 0 ]; then
+ ret=$1
+ fi
+}
+
+cleanup() {
+ local -r jobs="$(jobs -p)"
+ local -r ns="$(ip netns list|grep $PEER_NS)"
+
+ [ -n "${jobs}" ] && kill -1 ${jobs} 2>/dev/null
+ [ -n "$ns" ] && ip netns del $ns 2>/dev/null
+}
+trap cleanup EXIT
+
+cfg_veth() {
+ ip netns add "${PEER_NS}"
+ ip -netns "${PEER_NS}" link set lo up
+ ip link add type veth
+ ip link set dev veth0 up
+ ip addr add dev veth0 192.168.1.2/24
+ ip addr add dev veth0 2001:db8::2/64 nodad
+
+ ip link set dev veth1 netns "${PEER_NS}"
+ ip -netns "${PEER_NS}" addr add dev veth1 192.168.1.1/24
+ ip -netns "${PEER_NS}" addr add dev veth1 2001:db8::1/64 nodad
+ ip -netns "${PEER_NS}" link set dev veth1 up
+ ip -n "${PEER_NS}" link set veth1 xdp object ../bpf/xdp_dummy.o section xdp_dummy
+}
+
+run_one() {
+ # use 'rx' as separator between sender args and receiver args
+ local -r all="$@"
+ local -r tx_args=${all%rx*}
+ local -r rx_args=${all#*rx}
+
+ cfg_veth
+
+ ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${rx_args} && \
+ echo "ok" || \
+ echo "failed" &
+
+ # Hack: let bg programs complete the startup
+ sleep 0.1
+ ./udpgso_bench_tx ${tx_args}
+ ret=$?
+ wait $(jobs -p)
+ return $ret
+}
+
+run_test() {
+ local -r args=$@
+
+ printf " %-40s" "$1"
+ ./in_netns.sh $0 __subprocess $2 rx -G -r $3
+}
+
+run_one_nat() {
+ # use 'rx' as separator between sender args and receiver args
+ local addr1 addr2 pid family="" ipt_cmd=ip6tables
+ local -r all="$@"
+ local -r tx_args=${all%rx*}
+ local -r rx_args=${all#*rx}
+
+ if [[ ${tx_args} = *-4* ]]; then
+ ipt_cmd=iptables
+ family=-4
+ addr1=192.168.1.1
+ addr2=192.168.1.3/24
+ else
+ addr1=2001:db8::1
+ addr2="2001:db8::3/64 nodad"
+ fi
+
+ cfg_veth
+ ip -netns "${PEER_NS}" addr add dev veth1 ${addr2}
+
+ # fool the GRO engine changing the destination address ...
+ ip netns exec "${PEER_NS}" $ipt_cmd -t nat -I PREROUTING -d ${addr1} -j DNAT --to-destination ${addr2%/*}
+
+ # ... so that GRO will match the UDP_GRO enabled socket, but packets
+ # will land on the 'plain' one
+ ip netns exec "${PEER_NS}" ./udpgso_bench_rx -G ${family} -b ${addr1} -n 0 &
+ pid=$!
+ ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${family} -b ${addr2%/*} ${rx_args} && \
+ echo "ok" || \
+ echo "failed"&
+
+ sleep 0.1
+ ./udpgso_bench_tx ${tx_args}
+ ret=$?
+ kill -INT $pid
+ wait $(jobs -p)
+ return $ret
+}
+
+run_one_2sock() {
+ # use 'rx' as separator between sender args and receiver args
+ local -r all="$@"
+ local -r tx_args=${all%rx*}
+ local -r rx_args=${all#*rx}
+
+ cfg_veth
+
+ ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${rx_args} -p 12345 &
+ ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 2000 -R 10 ${rx_args} && \
+ echo "ok" || \
+ echo "failed" &
+
+ # Hack: let bg programs complete the startup
+ sleep 0.1
+ ./udpgso_bench_tx ${tx_args} -p 12345
+ sleep 0.1
+ # first UDP GSO socket should be closed at this point
+ ./udpgso_bench_tx ${tx_args}
+ ret=$?
+ wait $(jobs -p)
+ return $ret
+}
+
+run_nat_test() {
+ local -r args=$@
+
+ printf " %-40s" "$1"
+ ./in_netns.sh $0 __subprocess_nat $2 rx -r $3
+}
+
+run_2sock_test() {
+ local -r args=$@
+
+ printf " %-40s" "$1"
+ ./in_netns.sh $0 __subprocess_2sock $2 rx -G -r $3
+}
+
+run_all() {
+ local -r core_args="-l 4"
+ local -r ipv4_args="${core_args} -4 -D 192.168.1.1"
+ local -r ipv6_args="${core_args} -6 -D 2001:db8::1"
+ ret=0
+
+ echo "ipv4"
+ run_test "no GRO" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400"
+ check_err $?
+
+ # explicitly check we are not receiving UDP_SEGMENT cmsg (-S -1)
+ # when GRO does not take place
+ run_test "no GRO chk cmsg" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400 -S -1"
+ check_err $?
+
+ # the GSO packets are aggregated because:
+ # * veth schedule napi after each xmit
+ # * segmentation happens in BH context, veth napi poll is delayed after
+ # the transmission of the last segment
+ run_test "GRO" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720"
+ check_err $?
+ run_test "GRO chk cmsg" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472"
+ check_err $?
+ run_test "GRO with custom segment size" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720"
+ check_err $?
+ run_test "GRO with custom segment size cmsg" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720 -S 500"
+ check_err $?
+
+ run_nat_test "bad GRO lookup" "${ipv4_args} -M 1 -s 14720 -S 0" "-n 10 -l 1472"
+ check_err $?
+ run_2sock_test "multiple GRO socks" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472"
+ check_err $?
+
+ echo "ipv6"
+ run_test "no GRO" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400"
+ check_err $?
+ run_test "no GRO chk cmsg" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400 -S -1"
+ check_err $?
+ run_test "GRO" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520"
+ check_err $?
+ run_test "GRO chk cmsg" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520 -S 1452"
+ check_err $?
+ run_test "GRO with custom segment size" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520"
+ check_err $?
+ run_test "GRO with custom segment size cmsg" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520 -S 500"
+ check_err $?
+
+ run_nat_test "bad GRO lookup" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 10 -l 1452"
+ check_err $?
+ run_2sock_test "multiple GRO socks" "${ipv6_args} -M 1 -s 14520 -S 0 " "-n 1 -l 14520 -S 1452"
+ check_err $?
+ return $ret
+}
+
+if [ ! -f ../bpf/xdp_dummy.o ]; then
+ echo "Missing xdp_dummy helper. Build bpf selftest first"
+ exit -1
+fi
+
+if [[ $# -eq 0 ]]; then
+ run_all
+elif [[ $1 == "__subprocess" ]]; then
+ shift
+ run_one $@
+elif [[ $1 == "__subprocess_nat" ]]; then
+ shift
+ run_one_nat $@
+elif [[ $1 == "__subprocess_2sock" ]]; then
+ shift
+ run_one_2sock $@
+fi
+
+exit $?
diff --git a/tools/testing/selftests/net/udpgro_bench.sh b/tools/testing/selftests/net/udpgro_bench.sh
new file mode 100755
index 000000000..820bc50f6
--- /dev/null
+++ b/tools/testing/selftests/net/udpgro_bench.sh
@@ -0,0 +1,95 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run a series of udpgro benchmarks
+
+readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
+
+cleanup() {
+ local -r jobs="$(jobs -p)"
+ local -r ns="$(ip netns list|grep $PEER_NS)"
+
+ [ -n "${jobs}" ] && kill -INT ${jobs} 2>/dev/null
+ [ -n "$ns" ] && ip netns del $ns 2>/dev/null
+}
+trap cleanup EXIT
+
+run_one() {
+ # use 'rx' as separator between sender args and receiver args
+ local -r all="$@"
+ local -r tx_args=${all%rx*}
+ local rx_args=${all#*rx}
+
+ [[ "${tx_args}" == *"-4"* ]] && rx_args="${rx_args} -4"
+
+ ip netns add "${PEER_NS}"
+ ip -netns "${PEER_NS}" link set lo up
+ ip link add type veth
+ ip link set dev veth0 up
+ ip addr add dev veth0 192.168.1.2/24
+ ip addr add dev veth0 2001:db8::2/64 nodad
+
+ ip link set dev veth1 netns "${PEER_NS}"
+ ip -netns "${PEER_NS}" addr add dev veth1 192.168.1.1/24
+ ip -netns "${PEER_NS}" addr add dev veth1 2001:db8::1/64 nodad
+ ip -netns "${PEER_NS}" link set dev veth1 up
+
+ ip -n "${PEER_NS}" link set veth1 xdp object ../bpf/xdp_dummy.o section xdp_dummy
+ ip netns exec "${PEER_NS}" ./udpgso_bench_rx ${rx_args} -r &
+ ip netns exec "${PEER_NS}" ./udpgso_bench_rx -t ${rx_args} -r &
+
+ # Hack: let bg programs complete the startup
+ sleep 0.1
+ ./udpgso_bench_tx ${tx_args}
+}
+
+run_in_netns() {
+ local -r args=$@
+
+ ./in_netns.sh $0 __subprocess ${args}
+}
+
+run_udp() {
+ local -r args=$@
+
+ echo "udp gso - over veth touching data"
+ run_in_netns ${args} -S 0 rx
+
+ echo "udp gso and gro - over veth touching data"
+ run_in_netns ${args} -S 0 rx -G
+}
+
+run_tcp() {
+ local -r args=$@
+
+ echo "tcp - over veth touching data"
+ run_in_netns ${args} -t rx
+}
+
+run_all() {
+ local -r core_args="-l 4"
+ local -r ipv4_args="${core_args} -4 -D 192.168.1.1"
+ local -r ipv6_args="${core_args} -6 -D 2001:db8::1"
+
+ echo "ipv4"
+ run_tcp "${ipv4_args}"
+ run_udp "${ipv4_args}"
+
+ echo "ipv6"
+ run_tcp "${ipv4_args}"
+ run_udp "${ipv6_args}"
+}
+
+if [ ! -f ../bpf/xdp_dummy.o ]; then
+ echo "Missing xdp_dummy helper. Build bpf selftest first"
+ exit -1
+fi
+
+if [[ $# -eq 0 ]]; then
+ run_all
+elif [[ $1 == "__subprocess" ]]; then
+ shift
+ run_one $@
+else
+ run_in_netns $@
+fi
diff --git a/tools/testing/selftests/net/udpgso.c b/tools/testing/selftests/net/udpgso.c
new file mode 100644
index 000000000..7badaf215
--- /dev/null
+++ b/tools/testing/selftests/net/udpgso.c
@@ -0,0 +1,685 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <stddef.h>
+#include <arpa/inet.h>
+#include <error.h>
+#include <errno.h>
+#include <net/if.h>
+#include <linux/in.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+#include <netinet/if_ether.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/udp.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#ifndef ETH_MAX_MTU
+#define ETH_MAX_MTU 0xFFFFU
+#endif
+
+#ifndef UDP_SEGMENT
+#define UDP_SEGMENT 103
+#endif
+
+#ifndef UDP_MAX_SEGMENTS
+#define UDP_MAX_SEGMENTS (1 << 6UL)
+#endif
+
+#define CONST_MTU_TEST 1500
+
+#define CONST_HDRLEN_V4 (sizeof(struct iphdr) + sizeof(struct udphdr))
+#define CONST_HDRLEN_V6 (sizeof(struct ip6_hdr) + sizeof(struct udphdr))
+
+#define CONST_MSS_V4 (CONST_MTU_TEST - CONST_HDRLEN_V4)
+#define CONST_MSS_V6 (CONST_MTU_TEST - CONST_HDRLEN_V6)
+
+#define CONST_MAX_SEGS_V4 (ETH_MAX_MTU / CONST_MSS_V4)
+#define CONST_MAX_SEGS_V6 (ETH_MAX_MTU / CONST_MSS_V6)
+
+static bool cfg_do_ipv4;
+static bool cfg_do_ipv6;
+static bool cfg_do_connected;
+static bool cfg_do_connectionless;
+static bool cfg_do_msgmore;
+static bool cfg_do_setsockopt;
+static int cfg_specific_test_id = -1;
+
+static const char cfg_ifname[] = "lo";
+static unsigned short cfg_port = 9000;
+
+static char buf[ETH_MAX_MTU];
+
+struct testcase {
+ int tlen; /* send() buffer size, may exceed mss */
+ bool tfail; /* send() call is expected to fail */
+ int gso_len; /* mss after applying gso */
+ int r_num_mss; /* recv(): number of calls of full mss */
+ int r_len_last; /* recv(): size of last non-mss dgram, if any */
+};
+
+const struct in6_addr addr6 = IN6ADDR_LOOPBACK_INIT;
+const struct in_addr addr4 = { .s_addr = __constant_htonl(INADDR_LOOPBACK + 2) };
+
+struct testcase testcases_v4[] = {
+ {
+ /* no GSO: send a single byte */
+ .tlen = 1,
+ .r_len_last = 1,
+ },
+ {
+ /* no GSO: send a single MSS */
+ .tlen = CONST_MSS_V4,
+ .r_num_mss = 1,
+ },
+ {
+ /* no GSO: send a single MSS + 1B: fail */
+ .tlen = CONST_MSS_V4 + 1,
+ .tfail = true,
+ },
+ {
+ /* send a single MSS: will fall back to no GSO */
+ .tlen = CONST_MSS_V4,
+ .gso_len = CONST_MSS_V4,
+ .r_num_mss = 1,
+ },
+ {
+ /* send a single MSS + 1B */
+ .tlen = CONST_MSS_V4 + 1,
+ .gso_len = CONST_MSS_V4,
+ .r_num_mss = 1,
+ .r_len_last = 1,
+ },
+ {
+ /* send exactly 2 MSS */
+ .tlen = CONST_MSS_V4 * 2,
+ .gso_len = CONST_MSS_V4,
+ .r_num_mss = 2,
+ },
+ {
+ /* send 2 MSS + 1B */
+ .tlen = (CONST_MSS_V4 * 2) + 1,
+ .gso_len = CONST_MSS_V4,
+ .r_num_mss = 2,
+ .r_len_last = 1,
+ },
+ {
+ /* send MAX segs */
+ .tlen = (ETH_MAX_MTU / CONST_MSS_V4) * CONST_MSS_V4,
+ .gso_len = CONST_MSS_V4,
+ .r_num_mss = (ETH_MAX_MTU / CONST_MSS_V4),
+ },
+
+ {
+ /* send MAX bytes */
+ .tlen = ETH_MAX_MTU - CONST_HDRLEN_V4,
+ .gso_len = CONST_MSS_V4,
+ .r_num_mss = CONST_MAX_SEGS_V4,
+ .r_len_last = ETH_MAX_MTU - CONST_HDRLEN_V4 -
+ (CONST_MAX_SEGS_V4 * CONST_MSS_V4),
+ },
+ {
+ /* send MAX + 1: fail */
+ .tlen = ETH_MAX_MTU - CONST_HDRLEN_V4 + 1,
+ .gso_len = CONST_MSS_V4,
+ .tfail = true,
+ },
+ {
+ /* send a single 1B MSS: will fall back to no GSO */
+ .tlen = 1,
+ .gso_len = 1,
+ .r_num_mss = 1,
+ },
+ {
+ /* send 2 1B segments */
+ .tlen = 2,
+ .gso_len = 1,
+ .r_num_mss = 2,
+ },
+ {
+ /* send 2B + 2B + 1B segments */
+ .tlen = 5,
+ .gso_len = 2,
+ .r_num_mss = 2,
+ .r_len_last = 1,
+ },
+ {
+ /* send max number of min sized segments */
+ .tlen = UDP_MAX_SEGMENTS,
+ .gso_len = 1,
+ .r_num_mss = UDP_MAX_SEGMENTS,
+ },
+ {
+ /* send max number + 1 of min sized segments: fail */
+ .tlen = UDP_MAX_SEGMENTS + 1,
+ .gso_len = 1,
+ .tfail = true,
+ },
+ {
+ /* EOL */
+ }
+};
+
+#ifndef IP6_MAX_MTU
+#define IP6_MAX_MTU (ETH_MAX_MTU + sizeof(struct ip6_hdr))
+#endif
+
+struct testcase testcases_v6[] = {
+ {
+ /* no GSO: send a single byte */
+ .tlen = 1,
+ .r_len_last = 1,
+ },
+ {
+ /* no GSO: send a single MSS */
+ .tlen = CONST_MSS_V6,
+ .r_num_mss = 1,
+ },
+ {
+ /* no GSO: send a single MSS + 1B: fail */
+ .tlen = CONST_MSS_V6 + 1,
+ .tfail = true,
+ },
+ {
+ /* send a single MSS: will fall back to no GSO */
+ .tlen = CONST_MSS_V6,
+ .gso_len = CONST_MSS_V6,
+ .r_num_mss = 1,
+ },
+ {
+ /* send a single MSS + 1B */
+ .tlen = CONST_MSS_V6 + 1,
+ .gso_len = CONST_MSS_V6,
+ .r_num_mss = 1,
+ .r_len_last = 1,
+ },
+ {
+ /* send exactly 2 MSS */
+ .tlen = CONST_MSS_V6 * 2,
+ .gso_len = CONST_MSS_V6,
+ .r_num_mss = 2,
+ },
+ {
+ /* send 2 MSS + 1B */
+ .tlen = (CONST_MSS_V6 * 2) + 1,
+ .gso_len = CONST_MSS_V6,
+ .r_num_mss = 2,
+ .r_len_last = 1,
+ },
+ {
+ /* send MAX segs */
+ .tlen = (IP6_MAX_MTU / CONST_MSS_V6) * CONST_MSS_V6,
+ .gso_len = CONST_MSS_V6,
+ .r_num_mss = (IP6_MAX_MTU / CONST_MSS_V6),
+ },
+
+ {
+ /* send MAX bytes */
+ .tlen = IP6_MAX_MTU - CONST_HDRLEN_V6,
+ .gso_len = CONST_MSS_V6,
+ .r_num_mss = CONST_MAX_SEGS_V6,
+ .r_len_last = IP6_MAX_MTU - CONST_HDRLEN_V6 -
+ (CONST_MAX_SEGS_V6 * CONST_MSS_V6),
+ },
+ {
+ /* send MAX + 1: fail */
+ .tlen = IP6_MAX_MTU - CONST_HDRLEN_V6 + 1,
+ .gso_len = CONST_MSS_V6,
+ .tfail = true,
+ },
+ {
+ /* send a single 1B MSS: will fall back to no GSO */
+ .tlen = 1,
+ .gso_len = 1,
+ .r_num_mss = 1,
+ },
+ {
+ /* send 2 1B segments */
+ .tlen = 2,
+ .gso_len = 1,
+ .r_num_mss = 2,
+ },
+ {
+ /* send 2B + 2B + 1B segments */
+ .tlen = 5,
+ .gso_len = 2,
+ .r_num_mss = 2,
+ .r_len_last = 1,
+ },
+ {
+ /* send max number of min sized segments */
+ .tlen = UDP_MAX_SEGMENTS,
+ .gso_len = 1,
+ .r_num_mss = UDP_MAX_SEGMENTS,
+ },
+ {
+ /* send max number + 1 of min sized segments: fail */
+ .tlen = UDP_MAX_SEGMENTS + 1,
+ .gso_len = 1,
+ .tfail = true,
+ },
+ {
+ /* EOL */
+ }
+};
+
+static unsigned int get_device_mtu(int fd, const char *ifname)
+{
+ struct ifreq ifr;
+
+ memset(&ifr, 0, sizeof(ifr));
+
+ strcpy(ifr.ifr_name, ifname);
+
+ if (ioctl(fd, SIOCGIFMTU, &ifr))
+ error(1, errno, "ioctl get mtu");
+
+ return ifr.ifr_mtu;
+}
+
+static void __set_device_mtu(int fd, const char *ifname, unsigned int mtu)
+{
+ struct ifreq ifr;
+
+ memset(&ifr, 0, sizeof(ifr));
+
+ ifr.ifr_mtu = mtu;
+ strcpy(ifr.ifr_name, ifname);
+
+ if (ioctl(fd, SIOCSIFMTU, &ifr))
+ error(1, errno, "ioctl set mtu");
+}
+
+static void set_device_mtu(int fd, int mtu)
+{
+ int val;
+
+ val = get_device_mtu(fd, cfg_ifname);
+ fprintf(stderr, "device mtu (orig): %u\n", val);
+
+ __set_device_mtu(fd, cfg_ifname, mtu);
+ val = get_device_mtu(fd, cfg_ifname);
+ if (val != mtu)
+ error(1, 0, "unable to set device mtu to %u\n", val);
+
+ fprintf(stderr, "device mtu (test): %u\n", val);
+}
+
+static void set_pmtu_discover(int fd, bool is_ipv4)
+{
+ int level, name, val;
+
+ if (is_ipv4) {
+ level = SOL_IP;
+ name = IP_MTU_DISCOVER;
+ val = IP_PMTUDISC_DO;
+ } else {
+ level = SOL_IPV6;
+ name = IPV6_MTU_DISCOVER;
+ val = IPV6_PMTUDISC_DO;
+ }
+
+ if (setsockopt(fd, level, name, &val, sizeof(val)))
+ error(1, errno, "setsockopt path mtu");
+}
+
+static unsigned int get_path_mtu(int fd, bool is_ipv4)
+{
+ socklen_t vallen;
+ unsigned int mtu;
+ int ret;
+
+ vallen = sizeof(mtu);
+ if (is_ipv4)
+ ret = getsockopt(fd, SOL_IP, IP_MTU, &mtu, &vallen);
+ else
+ ret = getsockopt(fd, SOL_IPV6, IPV6_MTU, &mtu, &vallen);
+
+ if (ret)
+ error(1, errno, "getsockopt mtu");
+
+
+ fprintf(stderr, "path mtu (read): %u\n", mtu);
+ return mtu;
+}
+
+/* very wordy version of system("ip route add dev lo mtu 1500 127.0.0.3/32") */
+static void set_route_mtu(int mtu, bool is_ipv4)
+{
+ struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
+ struct nlmsghdr *nh;
+ struct rtattr *rta;
+ struct rtmsg *rt;
+ char data[NLMSG_ALIGN(sizeof(*nh)) +
+ NLMSG_ALIGN(sizeof(*rt)) +
+ NLMSG_ALIGN(RTA_LENGTH(sizeof(addr6))) +
+ NLMSG_ALIGN(RTA_LENGTH(sizeof(int))) +
+ NLMSG_ALIGN(RTA_LENGTH(0) + RTA_LENGTH(sizeof(int)))];
+ int fd, ret, alen, off = 0;
+
+ alen = is_ipv4 ? sizeof(addr4) : sizeof(addr6);
+
+ fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
+ if (fd == -1)
+ error(1, errno, "socket netlink");
+
+ memset(data, 0, sizeof(data));
+
+ nh = (void *)data;
+ nh->nlmsg_type = RTM_NEWROUTE;
+ nh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE;
+ off += NLMSG_ALIGN(sizeof(*nh));
+
+ rt = (void *)(data + off);
+ rt->rtm_family = is_ipv4 ? AF_INET : AF_INET6;
+ rt->rtm_table = RT_TABLE_MAIN;
+ rt->rtm_dst_len = alen << 3;
+ rt->rtm_protocol = RTPROT_BOOT;
+ rt->rtm_scope = RT_SCOPE_UNIVERSE;
+ rt->rtm_type = RTN_UNICAST;
+ off += NLMSG_ALIGN(sizeof(*rt));
+
+ rta = (void *)(data + off);
+ rta->rta_type = RTA_DST;
+ rta->rta_len = RTA_LENGTH(alen);
+ if (is_ipv4)
+ memcpy(RTA_DATA(rta), &addr4, alen);
+ else
+ memcpy(RTA_DATA(rta), &addr6, alen);
+ off += NLMSG_ALIGN(rta->rta_len);
+
+ rta = (void *)(data + off);
+ rta->rta_type = RTA_OIF;
+ rta->rta_len = RTA_LENGTH(sizeof(int));
+ *((int *)(RTA_DATA(rta))) = 1; //if_nametoindex("lo");
+ off += NLMSG_ALIGN(rta->rta_len);
+
+ /* MTU is a subtype in a metrics type */
+ rta = (void *)(data + off);
+ rta->rta_type = RTA_METRICS;
+ rta->rta_len = RTA_LENGTH(0) + RTA_LENGTH(sizeof(int));
+ off += NLMSG_ALIGN(rta->rta_len);
+
+ /* now fill MTU subtype. Note that it fits within above rta_len */
+ rta = (void *)(((char *) rta) + RTA_LENGTH(0));
+ rta->rta_type = RTAX_MTU;
+ rta->rta_len = RTA_LENGTH(sizeof(int));
+ *((int *)(RTA_DATA(rta))) = mtu;
+
+ nh->nlmsg_len = off;
+
+ ret = sendto(fd, data, off, 0, (void *)&nladdr, sizeof(nladdr));
+ if (ret != off)
+ error(1, errno, "send netlink: %uB != %uB\n", ret, off);
+
+ if (close(fd))
+ error(1, errno, "close netlink");
+
+ fprintf(stderr, "route mtu (test): %u\n", mtu);
+}
+
+static bool __send_one(int fd, struct msghdr *msg, int flags)
+{
+ int ret;
+
+ ret = sendmsg(fd, msg, flags);
+ if (ret == -1 &&
+ (errno == EMSGSIZE || errno == ENOMEM || errno == EINVAL))
+ return false;
+ if (ret == -1)
+ error(1, errno, "sendmsg");
+ if (ret != msg->msg_iov->iov_len)
+ error(1, 0, "sendto: %d != %llu", ret,
+ (unsigned long long)msg->msg_iov->iov_len);
+ if (msg->msg_flags)
+ error(1, 0, "sendmsg: return flags 0x%x\n", msg->msg_flags);
+
+ return true;
+}
+
+static bool send_one(int fd, int len, int gso_len,
+ struct sockaddr *addr, socklen_t alen)
+{
+ char control[CMSG_SPACE(sizeof(uint16_t))] = {0};
+ struct msghdr msg = {0};
+ struct iovec iov = {0};
+ struct cmsghdr *cm;
+
+ iov.iov_base = buf;
+ iov.iov_len = len;
+
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+
+ msg.msg_name = addr;
+ msg.msg_namelen = alen;
+
+ if (gso_len && !cfg_do_setsockopt) {
+ msg.msg_control = control;
+ msg.msg_controllen = sizeof(control);
+
+ cm = CMSG_FIRSTHDR(&msg);
+ cm->cmsg_level = SOL_UDP;
+ cm->cmsg_type = UDP_SEGMENT;
+ cm->cmsg_len = CMSG_LEN(sizeof(uint16_t));
+ *((uint16_t *) CMSG_DATA(cm)) = gso_len;
+ }
+
+ /* If MSG_MORE, send 1 byte followed by remainder */
+ if (cfg_do_msgmore && len > 1) {
+ iov.iov_len = 1;
+ if (!__send_one(fd, &msg, MSG_MORE))
+ error(1, 0, "send 1B failed");
+
+ iov.iov_base++;
+ iov.iov_len = len - 1;
+ }
+
+ return __send_one(fd, &msg, 0);
+}
+
+static int recv_one(int fd, int flags)
+{
+ int ret;
+
+ ret = recv(fd, buf, sizeof(buf), flags);
+ if (ret == -1 && errno == EAGAIN && (flags & MSG_DONTWAIT))
+ return 0;
+ if (ret == -1)
+ error(1, errno, "recv");
+
+ return ret;
+}
+
+static void run_one(struct testcase *test, int fdt, int fdr,
+ struct sockaddr *addr, socklen_t alen)
+{
+ int i, ret, val, mss;
+ bool sent;
+
+ fprintf(stderr, "ipv%d tx:%d gso:%d %s\n",
+ addr->sa_family == AF_INET ? 4 : 6,
+ test->tlen, test->gso_len,
+ test->tfail ? "(fail)" : "");
+
+ val = test->gso_len;
+ if (cfg_do_setsockopt) {
+ if (setsockopt(fdt, SOL_UDP, UDP_SEGMENT, &val, sizeof(val)))
+ error(1, errno, "setsockopt udp segment");
+ }
+
+ sent = send_one(fdt, test->tlen, test->gso_len, addr, alen);
+ if (sent && test->tfail)
+ error(1, 0, "send succeeded while expecting failure");
+ if (!sent && !test->tfail)
+ error(1, 0, "send failed while expecting success");
+ if (!sent)
+ return;
+
+ if (test->gso_len)
+ mss = test->gso_len;
+ else
+ mss = addr->sa_family == AF_INET ? CONST_MSS_V4 : CONST_MSS_V6;
+
+
+ /* Recv all full MSS datagrams */
+ for (i = 0; i < test->r_num_mss; i++) {
+ ret = recv_one(fdr, 0);
+ if (ret != mss)
+ error(1, 0, "recv.%d: %d != %d", i, ret, mss);
+ }
+
+ /* Recv the non-full last datagram, if tlen was not a multiple of mss */
+ if (test->r_len_last) {
+ ret = recv_one(fdr, 0);
+ if (ret != test->r_len_last)
+ error(1, 0, "recv.%d: %d != %d (last)",
+ i, ret, test->r_len_last);
+ }
+
+ /* Verify received all data */
+ ret = recv_one(fdr, MSG_DONTWAIT);
+ if (ret)
+ error(1, 0, "recv: unexpected datagram");
+}
+
+static void run_all(int fdt, int fdr, struct sockaddr *addr, socklen_t alen)
+{
+ struct testcase *tests, *test;
+
+ tests = addr->sa_family == AF_INET ? testcases_v4 : testcases_v6;
+
+ for (test = tests; test->tlen; test++) {
+ /* if a specific test is given, then skip all others */
+ if (cfg_specific_test_id == -1 ||
+ cfg_specific_test_id == test - tests)
+ run_one(test, fdt, fdr, addr, alen);
+ }
+}
+
+static void run_test(struct sockaddr *addr, socklen_t alen)
+{
+ struct timeval tv = { .tv_usec = 100 * 1000 };
+ int fdr, fdt, val;
+
+ fdr = socket(addr->sa_family, SOCK_DGRAM, 0);
+ if (fdr == -1)
+ error(1, errno, "socket r");
+
+ if (bind(fdr, addr, alen))
+ error(1, errno, "bind");
+
+ /* Have tests fail quickly instead of hang */
+ if (setsockopt(fdr, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)))
+ error(1, errno, "setsockopt rcv timeout");
+
+ fdt = socket(addr->sa_family, SOCK_DGRAM, 0);
+ if (fdt == -1)
+ error(1, errno, "socket t");
+
+ /* Do not fragment these datagrams: only succeed if GSO works */
+ set_pmtu_discover(fdt, addr->sa_family == AF_INET);
+
+ if (cfg_do_connectionless) {
+ set_device_mtu(fdt, CONST_MTU_TEST);
+ run_all(fdt, fdr, addr, alen);
+ }
+
+ if (cfg_do_connected) {
+ set_device_mtu(fdt, CONST_MTU_TEST + 100);
+ set_route_mtu(CONST_MTU_TEST, addr->sa_family == AF_INET);
+
+ if (connect(fdt, addr, alen))
+ error(1, errno, "connect");
+
+ val = get_path_mtu(fdt, addr->sa_family == AF_INET);
+ if (val != CONST_MTU_TEST)
+ error(1, 0, "bad path mtu %u\n", val);
+
+ run_all(fdt, fdr, addr, 0 /* use connected addr */);
+ }
+
+ if (close(fdt))
+ error(1, errno, "close t");
+ if (close(fdr))
+ error(1, errno, "close r");
+}
+
+static void run_test_v4(void)
+{
+ struct sockaddr_in addr = {0};
+
+ addr.sin_family = AF_INET;
+ addr.sin_port = htons(cfg_port);
+ addr.sin_addr = addr4;
+
+ run_test((void *)&addr, sizeof(addr));
+}
+
+static void run_test_v6(void)
+{
+ struct sockaddr_in6 addr = {0};
+
+ addr.sin6_family = AF_INET6;
+ addr.sin6_port = htons(cfg_port);
+ addr.sin6_addr = addr6;
+
+ run_test((void *)&addr, sizeof(addr));
+}
+
+static void parse_opts(int argc, char **argv)
+{
+ int c;
+
+ while ((c = getopt(argc, argv, "46cCmst:")) != -1) {
+ switch (c) {
+ case '4':
+ cfg_do_ipv4 = true;
+ break;
+ case '6':
+ cfg_do_ipv6 = true;
+ break;
+ case 'c':
+ cfg_do_connected = true;
+ break;
+ case 'C':
+ cfg_do_connectionless = true;
+ break;
+ case 'm':
+ cfg_do_msgmore = true;
+ break;
+ case 's':
+ cfg_do_setsockopt = true;
+ break;
+ case 't':
+ cfg_specific_test_id = strtoul(optarg, NULL, 0);
+ break;
+ default:
+ error(1, 0, "%s: parse error", argv[0]);
+ }
+ }
+}
+
+int main(int argc, char **argv)
+{
+ parse_opts(argc, argv);
+
+ if (cfg_do_ipv4)
+ run_test_v4();
+ if (cfg_do_ipv6)
+ run_test_v6();
+
+ fprintf(stderr, "OK\n");
+ return 0;
+}
diff --git a/tools/testing/selftests/net/udpgso.sh b/tools/testing/selftests/net/udpgso.sh
new file mode 100755
index 000000000..fec24f584
--- /dev/null
+++ b/tools/testing/selftests/net/udpgso.sh
@@ -0,0 +1,29 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run a series of udpgso regression tests
+
+echo "ipv4 cmsg"
+./in_netns.sh ./udpgso -4 -C
+
+echo "ipv4 setsockopt"
+./in_netns.sh ./udpgso -4 -C -s
+
+echo "ipv6 cmsg"
+./in_netns.sh ./udpgso -6 -C
+
+echo "ipv6 setsockopt"
+./in_netns.sh ./udpgso -6 -C -s
+
+echo "ipv4 connected"
+./in_netns.sh ./udpgso -4 -c
+
+# blocked on 2nd loopback address
+# echo "ipv6 connected"
+# ./in_netns.sh ./udpgso -6 -c
+
+echo "ipv4 msg_more"
+./in_netns.sh ./udpgso -4 -C -m
+
+echo "ipv6 msg_more"
+./in_netns.sh ./udpgso -6 -C -m
diff --git a/tools/testing/selftests/net/udpgso_bench.sh b/tools/testing/selftests/net/udpgso_bench.sh
new file mode 100755
index 000000000..640bc4345
--- /dev/null
+++ b/tools/testing/selftests/net/udpgso_bench.sh
@@ -0,0 +1,151 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run a series of udpgso benchmarks
+
+readonly GREEN='\033[0;92m'
+readonly YELLOW='\033[0;33m'
+readonly RED='\033[0;31m'
+readonly NC='\033[0m' # No Color
+readonly TESTPORT=8000
+
+readonly KSFT_PASS=0
+readonly KSFT_FAIL=1
+readonly KSFT_SKIP=4
+
+num_pass=0
+num_err=0
+num_skip=0
+
+kselftest_test_exitcode() {
+ local -r exitcode=$1
+
+ if [[ ${exitcode} -eq ${KSFT_PASS} ]]; then
+ num_pass=$(( $num_pass + 1 ))
+ elif [[ ${exitcode} -eq ${KSFT_SKIP} ]]; then
+ num_skip=$(( $num_skip + 1 ))
+ else
+ num_err=$(( $num_err + 1 ))
+ fi
+}
+
+kselftest_exit() {
+ echo -e "$(basename $0): PASS=${num_pass} SKIP=${num_skip} FAIL=${num_err}"
+
+ if [[ $num_err -ne 0 ]]; then
+ echo -e "$(basename $0): ${RED}FAIL${NC}"
+ exit ${KSFT_FAIL}
+ fi
+
+ if [[ $num_skip -ne 0 ]]; then
+ echo -e "$(basename $0): ${YELLOW}SKIP${NC}"
+ exit ${KSFT_SKIP}
+ fi
+
+ echo -e "$(basename $0): ${GREEN}PASS${NC}"
+ exit ${KSFT_PASS}
+}
+
+wake_children() {
+ local -r jobs="$(jobs -p)"
+
+ if [[ "${jobs}" != "" ]]; then
+ kill -1 ${jobs} 2>/dev/null
+ fi
+}
+trap wake_children EXIT
+
+run_one() {
+ local -r args=$@
+ local nr_socks=0
+ local i=0
+ local -r timeout=10
+
+ ./udpgso_bench_rx -p "$TESTPORT" &
+ ./udpgso_bench_rx -p "$TESTPORT" -t &
+
+ # Wait for the above test program to get ready to receive connections.
+ while [ "$i" -lt "$timeout" ]; do
+ nr_socks="$(ss -lnHi | grep -c "\*:${TESTPORT}")"
+ [ "$nr_socks" -eq 2 ] && break
+ i=$((i + 1))
+ sleep 1
+ done
+ if [ "$nr_socks" -ne 2 ]; then
+ echo "timed out while waiting for udpgso_bench_rx"
+ exit 1
+ fi
+
+ ./udpgso_bench_tx -p "$TESTPORT" ${args}
+}
+
+run_in_netns() {
+ local -r args=$@
+
+ ./in_netns.sh $0 __subprocess ${args}
+ kselftest_test_exitcode $?
+}
+
+run_udp() {
+ local -r args=$@
+
+ echo "udp"
+ run_in_netns ${args}
+
+ echo "udp gso"
+ run_in_netns ${args} -S 0
+
+ echo "udp gso zerocopy"
+ run_in_netns ${args} -S 0 -z
+
+ echo "udp gso timestamp"
+ run_in_netns ${args} -S 0 -T
+
+ echo "udp gso zerocopy audit"
+ run_in_netns ${args} -S 0 -z -a
+
+ echo "udp gso timestamp audit"
+ run_in_netns ${args} -S 0 -T -a
+
+ echo "udp gso zerocopy timestamp audit"
+ run_in_netns ${args} -S 0 -T -z -a
+}
+
+run_tcp() {
+ local -r args=$@
+
+ echo "tcp"
+ run_in_netns ${args} -t
+
+ echo "tcp zerocopy"
+ run_in_netns ${args} -t -z
+
+ # excluding for now because test fails intermittently
+ # add -P option to include poll() to reduce possibility of lost messages
+ #echo "tcp zerocopy audit"
+ #run_in_netns ${args} -t -z -P -a
+}
+
+run_all() {
+ local -r core_args="-l 3"
+ local -r ipv4_args="${core_args} -4 -D 127.0.0.1"
+ local -r ipv6_args="${core_args} -6 -D ::1"
+
+ echo "ipv4"
+ run_tcp "${ipv4_args}"
+ run_udp "${ipv4_args}"
+
+ echo "ipv6"
+ run_tcp "${ipv6_args}"
+ run_udp "${ipv6_args}"
+}
+
+if [[ $# -eq 0 ]]; then
+ run_all
+ kselftest_exit
+elif [[ $1 == "__subprocess" ]]; then
+ shift
+ run_one $@
+else
+ run_in_netns $@
+fi
diff --git a/tools/testing/selftests/net/udpgso_bench_rx.c b/tools/testing/selftests/net/udpgso_bench_rx.c
new file mode 100644
index 000000000..f35a924d4
--- /dev/null
+++ b/tools/testing/selftests/net/udpgso_bench_rx.c
@@ -0,0 +1,409 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <error.h>
+#include <errno.h>
+#include <limits.h>
+#include <linux/errqueue.h>
+#include <linux/if_packet.h>
+#include <linux/socket.h>
+#include <linux/sockios.h>
+#include <net/ethernet.h>
+#include <net/if.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/tcp.h>
+#include <netinet/udp.h>
+#include <poll.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#ifndef UDP_GRO
+#define UDP_GRO 104
+#endif
+
+static int cfg_port = 8000;
+static bool cfg_tcp;
+static bool cfg_verify;
+static bool cfg_read_all;
+static bool cfg_gro_segment;
+static int cfg_family = PF_INET6;
+static int cfg_alen = sizeof(struct sockaddr_in6);
+static int cfg_expected_pkt_nr;
+static int cfg_expected_pkt_len;
+static int cfg_expected_gso_size;
+static int cfg_connect_timeout_ms;
+static int cfg_rcv_timeout_ms;
+static struct sockaddr_storage cfg_bind_addr;
+
+static bool interrupted;
+static unsigned long packets, bytes;
+
+static void sigint_handler(int signum)
+{
+ if (signum == SIGINT)
+ interrupted = true;
+}
+
+static void setup_sockaddr(int domain, const char *str_addr, void *sockaddr)
+{
+ struct sockaddr_in6 *addr6 = (void *) sockaddr;
+ struct sockaddr_in *addr4 = (void *) sockaddr;
+
+ switch (domain) {
+ case PF_INET:
+ addr4->sin_family = AF_INET;
+ addr4->sin_port = htons(cfg_port);
+ if (inet_pton(AF_INET, str_addr, &(addr4->sin_addr)) != 1)
+ error(1, 0, "ipv4 parse error: %s", str_addr);
+ break;
+ case PF_INET6:
+ addr6->sin6_family = AF_INET6;
+ addr6->sin6_port = htons(cfg_port);
+ if (inet_pton(AF_INET6, str_addr, &(addr6->sin6_addr)) != 1)
+ error(1, 0, "ipv6 parse error: %s", str_addr);
+ break;
+ default:
+ error(1, 0, "illegal domain");
+ }
+}
+
+static unsigned long gettimeofday_ms(void)
+{
+ struct timeval tv;
+
+ gettimeofday(&tv, NULL);
+ return (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
+}
+
+static void do_poll(int fd, int timeout_ms)
+{
+ struct pollfd pfd;
+ int ret;
+
+ pfd.events = POLLIN;
+ pfd.revents = 0;
+ pfd.fd = fd;
+
+ do {
+ ret = poll(&pfd, 1, 10);
+ if (interrupted)
+ break;
+ if (ret == -1)
+ error(1, errno, "poll");
+ if (ret == 0) {
+ if (!timeout_ms)
+ continue;
+
+ timeout_ms -= 10;
+ if (timeout_ms <= 0) {
+ interrupted = true;
+ break;
+ }
+
+ /* no events and more time to wait, do poll again */
+ continue;
+ }
+ if (pfd.revents != POLLIN)
+ error(1, errno, "poll: 0x%x expected 0x%x\n",
+ pfd.revents, POLLIN);
+ } while (!ret);
+}
+
+static int do_socket(bool do_tcp)
+{
+ int fd, val;
+
+ fd = socket(cfg_family, cfg_tcp ? SOCK_STREAM : SOCK_DGRAM, 0);
+ if (fd == -1)
+ error(1, errno, "socket");
+
+ val = 1 << 21;
+ if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &val, sizeof(val)))
+ error(1, errno, "setsockopt rcvbuf");
+ val = 1;
+ if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &val, sizeof(val)))
+ error(1, errno, "setsockopt reuseport");
+
+ if (bind(fd, (void *)&cfg_bind_addr, cfg_alen))
+ error(1, errno, "bind");
+
+ if (do_tcp) {
+ int accept_fd = fd;
+
+ if (listen(accept_fd, 1))
+ error(1, errno, "listen");
+
+ do_poll(accept_fd, cfg_connect_timeout_ms);
+ if (interrupted)
+ exit(0);
+
+ fd = accept(accept_fd, NULL, NULL);
+ if (fd == -1)
+ error(1, errno, "accept");
+ if (close(accept_fd))
+ error(1, errno, "close accept fd");
+ }
+
+ return fd;
+}
+
+/* Flush all outstanding bytes for the tcp receive queue */
+static void do_flush_tcp(int fd)
+{
+ int ret;
+
+ while (true) {
+ /* MSG_TRUNC flushes up to len bytes */
+ ret = recv(fd, NULL, 1 << 21, MSG_TRUNC | MSG_DONTWAIT);
+ if (ret == -1 && errno == EAGAIN)
+ return;
+ if (ret == -1)
+ error(1, errno, "flush");
+ if (ret == 0) {
+ /* client detached */
+ exit(0);
+ }
+
+ packets++;
+ bytes += ret;
+ }
+
+}
+
+static char sanitized_char(char val)
+{
+ return (val >= 'a' && val <= 'z') ? val : '.';
+}
+
+static void do_verify_udp(const char *data, int len)
+{
+ char cur = data[0];
+ int i;
+
+ /* verify contents */
+ if (cur < 'a' || cur > 'z')
+ error(1, 0, "data initial byte out of range");
+
+ for (i = 1; i < len; i++) {
+ if (cur == 'z')
+ cur = 'a';
+ else
+ cur++;
+
+ if (data[i] != cur)
+ error(1, 0, "data[%d]: len %d, %c(%hhu) != %c(%hhu)\n",
+ i, len,
+ sanitized_char(data[i]), data[i],
+ sanitized_char(cur), cur);
+ }
+}
+
+static int recv_msg(int fd, char *buf, int len, int *gso_size)
+{
+ char control[CMSG_SPACE(sizeof(int))] = {0};
+ struct msghdr msg = {0};
+ struct iovec iov = {0};
+ struct cmsghdr *cmsg;
+ int ret;
+
+ iov.iov_base = buf;
+ iov.iov_len = len;
+
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+
+ msg.msg_control = control;
+ msg.msg_controllen = sizeof(control);
+
+ *gso_size = -1;
+ ret = recvmsg(fd, &msg, MSG_TRUNC | MSG_DONTWAIT);
+ if (ret != -1) {
+ for (cmsg = CMSG_FIRSTHDR(&msg); cmsg != NULL;
+ cmsg = CMSG_NXTHDR(&msg, cmsg)) {
+ if (cmsg->cmsg_level == SOL_UDP
+ && cmsg->cmsg_type == UDP_GRO) {
+ *gso_size = *(int *)CMSG_DATA(cmsg);
+ break;
+ }
+ }
+ }
+ return ret;
+}
+
+/* Flush all outstanding datagrams. Verify first few bytes of each. */
+static void do_flush_udp(int fd)
+{
+ static char rbuf[ETH_MAX_MTU];
+ int ret, len, gso_size = 0, budget = 256;
+
+ len = cfg_read_all ? sizeof(rbuf) : 0;
+ while (budget--) {
+ /* MSG_TRUNC will make return value full datagram length */
+ if (!cfg_expected_gso_size)
+ ret = recv(fd, rbuf, len, MSG_TRUNC | MSG_DONTWAIT);
+ else
+ ret = recv_msg(fd, rbuf, len, &gso_size);
+ if (ret == -1 && errno == EAGAIN)
+ break;
+ if (ret == -1)
+ error(1, errno, "recv");
+ if (cfg_expected_pkt_len && ret != cfg_expected_pkt_len)
+ error(1, 0, "recv: bad packet len, got %d,"
+ " expected %d\n", ret, cfg_expected_pkt_len);
+ if (len && cfg_verify) {
+ if (ret == 0)
+ error(1, errno, "recv: 0 byte datagram\n");
+
+ do_verify_udp(rbuf, ret);
+ }
+ if (cfg_expected_gso_size && cfg_expected_gso_size != gso_size)
+ error(1, 0, "recv: bad gso size, got %d, expected %d "
+ "(-1 == no gso cmsg))\n", gso_size,
+ cfg_expected_gso_size);
+
+ packets++;
+ bytes += ret;
+ if (cfg_expected_pkt_nr && packets >= cfg_expected_pkt_nr)
+ break;
+ }
+}
+
+static void usage(const char *filepath)
+{
+ error(1, 0, "Usage: %s [-C connect_timeout] [-Grtv] [-b addr] [-p port]"
+ " [-l pktlen] [-n packetnr] [-R rcv_timeout] [-S gsosize]",
+ filepath);
+}
+
+static void parse_opts(int argc, char **argv)
+{
+ const char *bind_addr = NULL;
+ int c;
+
+ while ((c = getopt(argc, argv, "4b:C:Gl:n:p:rR:S:tv")) != -1) {
+ switch (c) {
+ case '4':
+ cfg_family = PF_INET;
+ cfg_alen = sizeof(struct sockaddr_in);
+ break;
+ case 'b':
+ bind_addr = optarg;
+ break;
+ case 'C':
+ cfg_connect_timeout_ms = strtoul(optarg, NULL, 0);
+ break;
+ case 'G':
+ cfg_gro_segment = true;
+ break;
+ case 'l':
+ cfg_expected_pkt_len = strtoul(optarg, NULL, 0);
+ break;
+ case 'n':
+ cfg_expected_pkt_nr = strtoul(optarg, NULL, 0);
+ break;
+ case 'p':
+ cfg_port = strtoul(optarg, NULL, 0);
+ break;
+ case 'r':
+ cfg_read_all = true;
+ break;
+ case 'R':
+ cfg_rcv_timeout_ms = strtoul(optarg, NULL, 0);
+ break;
+ case 'S':
+ cfg_expected_gso_size = strtol(optarg, NULL, 0);
+ break;
+ case 't':
+ cfg_tcp = true;
+ break;
+ case 'v':
+ cfg_verify = true;
+ cfg_read_all = true;
+ break;
+ default:
+ exit(1);
+ }
+ }
+
+ if (!bind_addr)
+ bind_addr = cfg_family == PF_INET6 ? "::" : "0.0.0.0";
+
+ setup_sockaddr(cfg_family, bind_addr, &cfg_bind_addr);
+
+ if (optind != argc)
+ usage(argv[0]);
+
+ if (cfg_tcp && cfg_verify)
+ error(1, 0, "TODO: implement verify mode for tcp");
+}
+
+static void do_recv(void)
+{
+ int timeout_ms = cfg_tcp ? cfg_rcv_timeout_ms : cfg_connect_timeout_ms;
+ unsigned long tnow, treport;
+ int fd;
+
+ fd = do_socket(cfg_tcp);
+
+ if (cfg_gro_segment && !cfg_tcp) {
+ int val = 1;
+ if (setsockopt(fd, IPPROTO_UDP, UDP_GRO, &val, sizeof(val)))
+ error(1, errno, "setsockopt UDP_GRO");
+ }
+
+ treport = gettimeofday_ms() + 1000;
+ do {
+ do_poll(fd, timeout_ms);
+
+ if (cfg_tcp)
+ do_flush_tcp(fd);
+ else
+ do_flush_udp(fd);
+
+ tnow = gettimeofday_ms();
+ if (tnow > treport) {
+ if (packets)
+ fprintf(stderr,
+ "%s rx: %6lu MB/s %8lu calls/s\n",
+ cfg_tcp ? "tcp" : "udp",
+ bytes >> 20, packets);
+ bytes = packets = 0;
+ treport = tnow + 1000;
+ }
+
+ timeout_ms = cfg_rcv_timeout_ms;
+
+ } while (!interrupted);
+
+ if (cfg_expected_pkt_nr && (packets != cfg_expected_pkt_nr))
+ error(1, 0, "wrong packet number! got %ld, expected %d\n",
+ packets, cfg_expected_pkt_nr);
+
+ if (close(fd))
+ error(1, errno, "close");
+}
+
+int main(int argc, char **argv)
+{
+ parse_opts(argc, argv);
+
+ signal(SIGINT, sigint_handler);
+
+ do_recv();
+
+ return 0;
+}
diff --git a/tools/testing/selftests/net/udpgso_bench_tx.c b/tools/testing/selftests/net/udpgso_bench_tx.c
new file mode 100644
index 000000000..477392715
--- /dev/null
+++ b/tools/testing/selftests/net/udpgso_bench_tx.c
@@ -0,0 +1,734 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <linux/errqueue.h>
+#include <linux/net_tstamp.h>
+#include <netinet/if_ether.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/udp.h>
+#include <poll.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <sys/poll.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "../kselftest.h"
+
+#ifndef ETH_MAX_MTU
+#define ETH_MAX_MTU 0xFFFFU
+#endif
+
+#ifndef UDP_SEGMENT
+#define UDP_SEGMENT 103
+#endif
+
+#ifndef SO_ZEROCOPY
+#define SO_ZEROCOPY 60
+#endif
+
+#ifndef SO_EE_ORIGIN_ZEROCOPY
+#define SO_EE_ORIGIN_ZEROCOPY 5
+#endif
+
+#ifndef MSG_ZEROCOPY
+#define MSG_ZEROCOPY 0x4000000
+#endif
+
+#ifndef ENOTSUPP
+#define ENOTSUPP 524
+#endif
+
+#define NUM_PKT 100
+
+static bool cfg_cache_trash;
+static int cfg_cpu = -1;
+static int cfg_connected = true;
+static int cfg_family = PF_UNSPEC;
+static uint16_t cfg_mss;
+static int cfg_payload_len = (1472 * 42);
+static int cfg_port = 8000;
+static int cfg_runtime_ms = -1;
+static bool cfg_poll;
+static int cfg_poll_loop_timeout_ms = 2000;
+static bool cfg_segment;
+static bool cfg_sendmmsg;
+static bool cfg_tcp;
+static uint32_t cfg_tx_ts = SOF_TIMESTAMPING_TX_SOFTWARE;
+static bool cfg_tx_tstamp;
+static bool cfg_audit;
+static bool cfg_verbose;
+static bool cfg_zerocopy;
+static int cfg_msg_nr;
+static uint16_t cfg_gso_size;
+static unsigned long total_num_msgs;
+static unsigned long total_num_sends;
+static unsigned long stat_tx_ts;
+static unsigned long stat_tx_ts_errors;
+static unsigned long tstart;
+static unsigned long tend;
+static unsigned long stat_zcopies;
+
+static socklen_t cfg_alen;
+static struct sockaddr_storage cfg_dst_addr;
+
+static bool interrupted;
+static char buf[NUM_PKT][ETH_MAX_MTU];
+
+static void sigint_handler(int signum)
+{
+ if (signum == SIGINT)
+ interrupted = true;
+}
+
+static unsigned long gettimeofday_ms(void)
+{
+ struct timeval tv;
+
+ gettimeofday(&tv, NULL);
+ return (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
+}
+
+static int set_cpu(int cpu)
+{
+ cpu_set_t mask;
+
+ CPU_ZERO(&mask);
+ CPU_SET(cpu, &mask);
+ if (sched_setaffinity(0, sizeof(mask), &mask))
+ error(1, 0, "setaffinity %d", cpu);
+
+ return 0;
+}
+
+static void setup_sockaddr(int domain, const char *str_addr, void *sockaddr)
+{
+ struct sockaddr_in6 *addr6 = (void *) sockaddr;
+ struct sockaddr_in *addr4 = (void *) sockaddr;
+
+ switch (domain) {
+ case PF_INET:
+ addr4->sin_family = AF_INET;
+ addr4->sin_port = htons(cfg_port);
+ if (inet_pton(AF_INET, str_addr, &(addr4->sin_addr)) != 1)
+ error(1, 0, "ipv4 parse error: %s", str_addr);
+ break;
+ case PF_INET6:
+ addr6->sin6_family = AF_INET6;
+ addr6->sin6_port = htons(cfg_port);
+ if (inet_pton(AF_INET6, str_addr, &(addr6->sin6_addr)) != 1)
+ error(1, 0, "ipv6 parse error: %s", str_addr);
+ break;
+ default:
+ error(1, 0, "illegal domain");
+ }
+}
+
+static void flush_cmsg(struct cmsghdr *cmsg)
+{
+ struct sock_extended_err *err;
+ struct scm_timestamping *tss;
+ __u32 lo;
+ __u32 hi;
+ int i;
+
+ switch (cmsg->cmsg_level) {
+ case SOL_SOCKET:
+ if (cmsg->cmsg_type == SO_TIMESTAMPING) {
+ i = (cfg_tx_ts == SOF_TIMESTAMPING_TX_HARDWARE) ? 2 : 0;
+ tss = (struct scm_timestamping *)CMSG_DATA(cmsg);
+ if (tss->ts[i].tv_sec == 0)
+ stat_tx_ts_errors++;
+ } else {
+ error(1, 0, "unknown SOL_SOCKET cmsg type=%u\n",
+ cmsg->cmsg_type);
+ }
+ break;
+ case SOL_IP:
+ case SOL_IPV6:
+ switch (cmsg->cmsg_type) {
+ case IP_RECVERR:
+ case IPV6_RECVERR:
+ {
+ err = (struct sock_extended_err *)CMSG_DATA(cmsg);
+ switch (err->ee_origin) {
+ case SO_EE_ORIGIN_TIMESTAMPING:
+ /* Got a TX timestamp from error queue */
+ stat_tx_ts++;
+ break;
+ case SO_EE_ORIGIN_ICMP:
+ case SO_EE_ORIGIN_ICMP6:
+ if (cfg_verbose)
+ fprintf(stderr,
+ "received ICMP error: type=%u, code=%u\n",
+ err->ee_type, err->ee_code);
+ break;
+ case SO_EE_ORIGIN_ZEROCOPY:
+ {
+ lo = err->ee_info;
+ hi = err->ee_data;
+ /* range of IDs acknowledged */
+ stat_zcopies += hi - lo + 1;
+ break;
+ }
+ case SO_EE_ORIGIN_LOCAL:
+ if (cfg_verbose)
+ fprintf(stderr,
+ "received packet with local origin: %u\n",
+ err->ee_origin);
+ break;
+ default:
+ error(0, 1, "received packet with origin: %u",
+ err->ee_origin);
+ }
+ break;
+ }
+ default:
+ error(0, 1, "unknown IP msg type=%u\n",
+ cmsg->cmsg_type);
+ break;
+ }
+ break;
+ default:
+ error(0, 1, "unknown cmsg level=%u\n",
+ cmsg->cmsg_level);
+ }
+}
+
+static void flush_errqueue_recv(int fd)
+{
+ char control[CMSG_SPACE(sizeof(struct scm_timestamping)) +
+ CMSG_SPACE(sizeof(struct sock_extended_err)) +
+ CMSG_SPACE(sizeof(struct sockaddr_in6))] = {0};
+ struct msghdr msg = {0};
+ struct cmsghdr *cmsg;
+ int ret;
+
+ while (1) {
+ msg.msg_control = control;
+ msg.msg_controllen = sizeof(control);
+ ret = recvmsg(fd, &msg, MSG_ERRQUEUE);
+ if (ret == -1 && errno == EAGAIN)
+ break;
+ if (ret == -1)
+ error(1, errno, "errqueue");
+ if (msg.msg_flags != MSG_ERRQUEUE)
+ error(1, 0, "errqueue: flags 0x%x\n", msg.msg_flags);
+ if (cfg_audit) {
+ for (cmsg = CMSG_FIRSTHDR(&msg);
+ cmsg;
+ cmsg = CMSG_NXTHDR(&msg, cmsg))
+ flush_cmsg(cmsg);
+ }
+ msg.msg_flags = 0;
+ }
+}
+
+static void flush_errqueue(int fd, const bool do_poll,
+ unsigned long poll_timeout, const bool poll_err)
+{
+ if (do_poll) {
+ struct pollfd fds = {0};
+ int ret;
+
+ fds.fd = fd;
+ ret = poll(&fds, 1, poll_timeout);
+ if (ret == 0) {
+ if ((cfg_verbose) && (poll_err))
+ fprintf(stderr, "poll timeout\n");
+ } else if (ret < 0) {
+ error(1, errno, "poll");
+ }
+ }
+
+ flush_errqueue_recv(fd);
+}
+
+static void flush_errqueue_retry(int fd, unsigned long num_sends)
+{
+ unsigned long tnow, tstop;
+ bool first_try = true;
+
+ tnow = gettimeofday_ms();
+ tstop = tnow + cfg_poll_loop_timeout_ms;
+ do {
+ flush_errqueue(fd, true, tstop - tnow, first_try);
+ first_try = false;
+ tnow = gettimeofday_ms();
+ } while ((stat_zcopies != num_sends) && (tnow < tstop));
+}
+
+static int send_tcp(int fd, char *data)
+{
+ int ret, done = 0, count = 0;
+
+ while (done < cfg_payload_len) {
+ ret = send(fd, data + done, cfg_payload_len - done,
+ cfg_zerocopy ? MSG_ZEROCOPY : 0);
+ if (ret == -1)
+ error(1, errno, "write");
+
+ done += ret;
+ count++;
+ }
+
+ return count;
+}
+
+static int send_udp(int fd, char *data)
+{
+ int ret, total_len, len, count = 0;
+
+ total_len = cfg_payload_len;
+
+ while (total_len) {
+ len = total_len < cfg_mss ? total_len : cfg_mss;
+
+ ret = sendto(fd, data, len, cfg_zerocopy ? MSG_ZEROCOPY : 0,
+ cfg_connected ? NULL : (void *)&cfg_dst_addr,
+ cfg_connected ? 0 : cfg_alen);
+ if (ret == -1)
+ error(1, errno, "write");
+ if (ret != len)
+ error(1, errno, "write: %uB != %uB\n", ret, len);
+
+ total_len -= len;
+ count++;
+ }
+
+ return count;
+}
+
+static void send_ts_cmsg(struct cmsghdr *cm)
+{
+ uint32_t *valp;
+
+ cm->cmsg_level = SOL_SOCKET;
+ cm->cmsg_type = SO_TIMESTAMPING;
+ cm->cmsg_len = CMSG_LEN(sizeof(cfg_tx_ts));
+ valp = (void *)CMSG_DATA(cm);
+ *valp = cfg_tx_ts;
+}
+
+static int send_udp_sendmmsg(int fd, char *data)
+{
+ char control[CMSG_SPACE(sizeof(cfg_tx_ts))] = {0};
+ const int max_nr_msg = ETH_MAX_MTU / ETH_DATA_LEN;
+ struct mmsghdr mmsgs[max_nr_msg];
+ struct iovec iov[max_nr_msg];
+ unsigned int off = 0, left;
+ size_t msg_controllen = 0;
+ int i = 0, ret;
+
+ memset(mmsgs, 0, sizeof(mmsgs));
+
+ if (cfg_tx_tstamp) {
+ struct msghdr msg = {0};
+ struct cmsghdr *cmsg;
+
+ msg.msg_control = control;
+ msg.msg_controllen = sizeof(control);
+ cmsg = CMSG_FIRSTHDR(&msg);
+ send_ts_cmsg(cmsg);
+ msg_controllen += CMSG_SPACE(sizeof(cfg_tx_ts));
+ }
+
+ left = cfg_payload_len;
+ while (left) {
+ if (i == max_nr_msg)
+ error(1, 0, "sendmmsg: exceeds max_nr_msg");
+
+ iov[i].iov_base = data + off;
+ iov[i].iov_len = cfg_mss < left ? cfg_mss : left;
+
+ mmsgs[i].msg_hdr.msg_iov = iov + i;
+ mmsgs[i].msg_hdr.msg_iovlen = 1;
+
+ mmsgs[i].msg_hdr.msg_name = (void *)&cfg_dst_addr;
+ mmsgs[i].msg_hdr.msg_namelen = cfg_alen;
+ if (msg_controllen) {
+ mmsgs[i].msg_hdr.msg_control = control;
+ mmsgs[i].msg_hdr.msg_controllen = msg_controllen;
+ }
+
+ off += iov[i].iov_len;
+ left -= iov[i].iov_len;
+ i++;
+ }
+
+ ret = sendmmsg(fd, mmsgs, i, cfg_zerocopy ? MSG_ZEROCOPY : 0);
+ if (ret == -1)
+ error(1, errno, "sendmmsg");
+
+ return ret;
+}
+
+static void send_udp_segment_cmsg(struct cmsghdr *cm)
+{
+ uint16_t *valp;
+
+ cm->cmsg_level = SOL_UDP;
+ cm->cmsg_type = UDP_SEGMENT;
+ cm->cmsg_len = CMSG_LEN(sizeof(cfg_gso_size));
+ valp = (void *)CMSG_DATA(cm);
+ *valp = cfg_gso_size;
+}
+
+static int send_udp_segment(int fd, char *data)
+{
+ char control[CMSG_SPACE(sizeof(cfg_gso_size)) +
+ CMSG_SPACE(sizeof(cfg_tx_ts))] = {0};
+ struct msghdr msg = {0};
+ struct iovec iov = {0};
+ size_t msg_controllen;
+ struct cmsghdr *cmsg;
+ int ret;
+
+ iov.iov_base = data;
+ iov.iov_len = cfg_payload_len;
+
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+
+ msg.msg_control = control;
+ msg.msg_controllen = sizeof(control);
+ cmsg = CMSG_FIRSTHDR(&msg);
+ send_udp_segment_cmsg(cmsg);
+ msg_controllen = CMSG_SPACE(sizeof(cfg_mss));
+ if (cfg_tx_tstamp) {
+ cmsg = CMSG_NXTHDR(&msg, cmsg);
+ send_ts_cmsg(cmsg);
+ msg_controllen += CMSG_SPACE(sizeof(cfg_tx_ts));
+ }
+
+ msg.msg_controllen = msg_controllen;
+ msg.msg_name = (void *)&cfg_dst_addr;
+ msg.msg_namelen = cfg_alen;
+
+ ret = sendmsg(fd, &msg, cfg_zerocopy ? MSG_ZEROCOPY : 0);
+ if (ret == -1)
+ error(1, errno, "sendmsg");
+ if (ret != iov.iov_len)
+ error(1, 0, "sendmsg: %u != %llu\n", ret,
+ (unsigned long long)iov.iov_len);
+
+ return 1;
+}
+
+static void usage(const char *filepath)
+{
+ error(1, 0, "Usage: %s [-46acmHPtTuvz] [-C cpu] [-D dst ip] [-l secs] "
+ "[-L secs] [-M messagenr] [-p port] [-s sendsize] [-S gsosize]",
+ filepath);
+}
+
+static void parse_opts(int argc, char **argv)
+{
+ const char *bind_addr = NULL;
+ int max_len, hdrlen;
+ int c;
+
+ while ((c = getopt(argc, argv, "46acC:D:Hl:L:mM:p:s:PS:tTuvz")) != -1) {
+ switch (c) {
+ case '4':
+ if (cfg_family != PF_UNSPEC)
+ error(1, 0, "Pass one of -4 or -6");
+ cfg_family = PF_INET;
+ cfg_alen = sizeof(struct sockaddr_in);
+ break;
+ case '6':
+ if (cfg_family != PF_UNSPEC)
+ error(1, 0, "Pass one of -4 or -6");
+ cfg_family = PF_INET6;
+ cfg_alen = sizeof(struct sockaddr_in6);
+ break;
+ case 'a':
+ cfg_audit = true;
+ break;
+ case 'c':
+ cfg_cache_trash = true;
+ break;
+ case 'C':
+ cfg_cpu = strtol(optarg, NULL, 0);
+ break;
+ case 'D':
+ bind_addr = optarg;
+ break;
+ case 'l':
+ cfg_runtime_ms = strtoul(optarg, NULL, 10) * 1000;
+ break;
+ case 'L':
+ cfg_poll_loop_timeout_ms = strtoul(optarg, NULL, 10) * 1000;
+ break;
+ case 'm':
+ cfg_sendmmsg = true;
+ break;
+ case 'M':
+ cfg_msg_nr = strtoul(optarg, NULL, 10);
+ break;
+ case 'p':
+ cfg_port = strtoul(optarg, NULL, 0);
+ break;
+ case 'P':
+ cfg_poll = true;
+ break;
+ case 's':
+ cfg_payload_len = strtoul(optarg, NULL, 0);
+ break;
+ case 'S':
+ cfg_gso_size = strtoul(optarg, NULL, 0);
+ cfg_segment = true;
+ break;
+ case 'H':
+ cfg_tx_ts = SOF_TIMESTAMPING_TX_HARDWARE;
+ cfg_tx_tstamp = true;
+ break;
+ case 't':
+ cfg_tcp = true;
+ break;
+ case 'T':
+ cfg_tx_tstamp = true;
+ break;
+ case 'u':
+ cfg_connected = false;
+ break;
+ case 'v':
+ cfg_verbose = true;
+ break;
+ case 'z':
+ cfg_zerocopy = true;
+ break;
+ default:
+ exit(1);
+ }
+ }
+
+ if (!bind_addr)
+ bind_addr = cfg_family == PF_INET6 ? "::" : "0.0.0.0";
+
+ setup_sockaddr(cfg_family, bind_addr, &cfg_dst_addr);
+
+ if (optind != argc)
+ usage(argv[0]);
+
+ if (cfg_family == PF_UNSPEC)
+ error(1, 0, "must pass one of -4 or -6");
+ if (cfg_tcp && !cfg_connected)
+ error(1, 0, "connectionless tcp makes no sense");
+ if (cfg_segment && cfg_sendmmsg)
+ error(1, 0, "cannot combine segment offload and sendmmsg");
+ if (cfg_tx_tstamp && !(cfg_segment || cfg_sendmmsg))
+ error(1, 0, "Options -T and -H require either -S or -m option");
+
+ if (cfg_family == PF_INET)
+ hdrlen = sizeof(struct iphdr) + sizeof(struct udphdr);
+ else
+ hdrlen = sizeof(struct ip6_hdr) + sizeof(struct udphdr);
+
+ cfg_mss = ETH_DATA_LEN - hdrlen;
+ max_len = ETH_MAX_MTU - hdrlen;
+ if (!cfg_gso_size)
+ cfg_gso_size = cfg_mss;
+
+ if (cfg_payload_len > max_len)
+ error(1, 0, "payload length %u exceeds max %u",
+ cfg_payload_len, max_len);
+}
+
+static void set_pmtu_discover(int fd, bool is_ipv4)
+{
+ int level, name, val;
+
+ if (is_ipv4) {
+ level = SOL_IP;
+ name = IP_MTU_DISCOVER;
+ val = IP_PMTUDISC_DO;
+ } else {
+ level = SOL_IPV6;
+ name = IPV6_MTU_DISCOVER;
+ val = IPV6_PMTUDISC_DO;
+ }
+
+ if (setsockopt(fd, level, name, &val, sizeof(val)))
+ error(1, errno, "setsockopt path mtu");
+}
+
+static void set_tx_timestamping(int fd)
+{
+ int val = SOF_TIMESTAMPING_OPT_CMSG | SOF_TIMESTAMPING_OPT_ID |
+ SOF_TIMESTAMPING_OPT_TSONLY;
+
+ if (cfg_tx_ts == SOF_TIMESTAMPING_TX_SOFTWARE)
+ val |= SOF_TIMESTAMPING_SOFTWARE;
+ else
+ val |= SOF_TIMESTAMPING_RAW_HARDWARE;
+
+ if (setsockopt(fd, SOL_SOCKET, SO_TIMESTAMPING, &val, sizeof(val)))
+ error(1, errno, "setsockopt tx timestamping");
+}
+
+static void print_audit_report(unsigned long num_msgs, unsigned long num_sends)
+{
+ unsigned long tdelta;
+
+ tdelta = tend - tstart;
+ if (!tdelta)
+ return;
+
+ fprintf(stderr, "Summary over %lu.%03lu seconds...\n",
+ tdelta / 1000, tdelta % 1000);
+ fprintf(stderr,
+ "sum %s tx: %6lu MB/s %10lu calls (%lu/s) %10lu msgs (%lu/s)\n",
+ cfg_tcp ? "tcp" : "udp",
+ ((num_msgs * cfg_payload_len) >> 10) / tdelta,
+ num_sends, num_sends * 1000 / tdelta,
+ num_msgs, num_msgs * 1000 / tdelta);
+
+ if (cfg_tx_tstamp) {
+ if (stat_tx_ts_errors)
+ error(1, 0,
+ "Expected clean TX Timestamps: %9lu msgs received %6lu errors",
+ stat_tx_ts, stat_tx_ts_errors);
+ if (stat_tx_ts != num_sends)
+ error(1, 0,
+ "Unexpected number of TX Timestamps: %9lu expected %9lu received",
+ num_sends, stat_tx_ts);
+ fprintf(stderr,
+ "Tx Timestamps: %19lu received %17lu errors\n",
+ stat_tx_ts, stat_tx_ts_errors);
+ }
+
+ if (cfg_zerocopy) {
+ if (stat_zcopies != num_sends)
+ error(1, 0, "Unexpected number of Zerocopy completions: %9lu expected %9lu received",
+ num_sends, stat_zcopies);
+ fprintf(stderr,
+ "Zerocopy acks: %19lu\n",
+ stat_zcopies);
+ }
+}
+
+static void print_report(unsigned long num_msgs, unsigned long num_sends)
+{
+ fprintf(stderr,
+ "%s tx: %6lu MB/s %8lu calls/s %6lu msg/s\n",
+ cfg_tcp ? "tcp" : "udp",
+ (num_msgs * cfg_payload_len) >> 20,
+ num_sends, num_msgs);
+
+ if (cfg_audit) {
+ total_num_msgs += num_msgs;
+ total_num_sends += num_sends;
+ }
+}
+
+int main(int argc, char **argv)
+{
+ unsigned long num_msgs, num_sends;
+ unsigned long tnow, treport, tstop;
+ int fd, i, val, ret;
+
+ parse_opts(argc, argv);
+
+ if (cfg_cpu > 0)
+ set_cpu(cfg_cpu);
+
+ for (i = 0; i < sizeof(buf[0]); i++)
+ buf[0][i] = 'a' + (i % 26);
+ for (i = 1; i < NUM_PKT; i++)
+ memcpy(buf[i], buf[0], sizeof(buf[0]));
+
+ signal(SIGINT, sigint_handler);
+
+ fd = socket(cfg_family, cfg_tcp ? SOCK_STREAM : SOCK_DGRAM, 0);
+ if (fd == -1)
+ error(1, errno, "socket");
+
+ if (cfg_zerocopy) {
+ val = 1;
+
+ ret = setsockopt(fd, SOL_SOCKET, SO_ZEROCOPY,
+ &val, sizeof(val));
+ if (ret) {
+ if (errno == ENOPROTOOPT || errno == ENOTSUPP) {
+ fprintf(stderr, "SO_ZEROCOPY not supported");
+ exit(KSFT_SKIP);
+ }
+ error(1, errno, "setsockopt zerocopy");
+ }
+ }
+
+ if (cfg_connected &&
+ connect(fd, (void *)&cfg_dst_addr, cfg_alen))
+ error(1, errno, "connect");
+
+ if (cfg_segment)
+ set_pmtu_discover(fd, cfg_family == PF_INET);
+
+ if (cfg_tx_tstamp)
+ set_tx_timestamping(fd);
+
+ num_msgs = num_sends = 0;
+ tnow = gettimeofday_ms();
+ tstart = tnow;
+ tend = tnow;
+ tstop = tnow + cfg_runtime_ms;
+ treport = tnow + 1000;
+
+ i = 0;
+ do {
+ if (cfg_tcp)
+ num_sends += send_tcp(fd, buf[i]);
+ else if (cfg_segment)
+ num_sends += send_udp_segment(fd, buf[i]);
+ else if (cfg_sendmmsg)
+ num_sends += send_udp_sendmmsg(fd, buf[i]);
+ else
+ num_sends += send_udp(fd, buf[i]);
+ num_msgs++;
+ if ((cfg_zerocopy && ((num_msgs & 0xF) == 0)) || cfg_tx_tstamp)
+ flush_errqueue(fd, cfg_poll, 500, true);
+
+ if (cfg_msg_nr && num_msgs >= cfg_msg_nr)
+ break;
+
+ tnow = gettimeofday_ms();
+ if (tnow >= treport) {
+ print_report(num_msgs, num_sends);
+ num_msgs = num_sends = 0;
+ treport = tnow + 1000;
+ }
+
+ /* cold cache when writing buffer */
+ if (cfg_cache_trash)
+ i = ++i < NUM_PKT ? i : 0;
+
+ } while (!interrupted && (cfg_runtime_ms == -1 || tnow < tstop));
+
+ if (cfg_zerocopy || cfg_tx_tstamp)
+ flush_errqueue_retry(fd, num_sends);
+
+ if (close(fd))
+ error(1, errno, "close");
+
+ if (cfg_audit) {
+ tend = tnow;
+ total_num_msgs += num_msgs;
+ total_num_sends += num_sends;
+ print_audit_report(total_num_msgs, total_num_sends);
+ }
+
+ return 0;
+}
diff --git a/tools/testing/selftests/net/vrf-xfrm-tests.sh b/tools/testing/selftests/net/vrf-xfrm-tests.sh
new file mode 100755
index 000000000..452638ae8
--- /dev/null
+++ b/tools/testing/selftests/net/vrf-xfrm-tests.sh
@@ -0,0 +1,436 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Various combinations of VRF with xfrms and qdisc.
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+PAUSE_ON_FAIL=no
+VERBOSE=0
+ret=0
+
+HOST1_4=192.168.1.1
+HOST2_4=192.168.1.2
+HOST1_6=2001:db8:1::1
+HOST2_6=2001:db8:1::2
+
+XFRM1_4=10.0.1.1
+XFRM2_4=10.0.1.2
+XFRM1_6=fc00:1000::1
+XFRM2_6=fc00:1000::2
+IF_ID=123
+
+VRF=red
+TABLE=300
+
+AUTH_1=0xd94fcfea65fddf21dc6e0d24a0253508
+AUTH_2=0xdc6e0d24a0253508d94fcfea65fddf21
+ENC_1=0xfc46c20f8048be9725930ff3fb07ac2a91f0347dffeacf62
+ENC_2=0x3fb07ac2a91f0347dffeacf62fc46c20f8048be9725930ff
+SPI_1=0x02122b77
+SPI_2=0x2b770212
+
+which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
+
+################################################################################
+#
+log_test()
+{
+ local rc=$1
+ local expected=$2
+ local msg="$3"
+
+ if [ ${rc} -eq ${expected} ]; then
+ printf "TEST: %-60s [ OK ]\n" "${msg}"
+ nsuccess=$((nsuccess+1))
+ else
+ ret=1
+ nfail=$((nfail+1))
+ printf "TEST: %-60s [FAIL]\n" "${msg}"
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+ fi
+}
+
+run_cmd_host1()
+{
+ local cmd="$*"
+ local out
+ local rc
+
+ if [ "$VERBOSE" = "1" ]; then
+ printf " COMMAND: $cmd\n"
+ fi
+
+ out=$(eval ip netns exec host1 $cmd 2>&1)
+ rc=$?
+ if [ "$VERBOSE" = "1" ]; then
+ if [ -n "$out" ]; then
+ echo
+ echo " $out"
+ fi
+ echo
+ fi
+
+ return $rc
+}
+
+################################################################################
+# create namespaces for hosts and sws
+
+create_vrf()
+{
+ local ns=$1
+ local vrf=$2
+ local table=$3
+
+ if [ -n "${ns}" ]; then
+ ns="-netns ${ns}"
+ fi
+
+ ip ${ns} link add ${vrf} type vrf table ${table}
+ ip ${ns} link set ${vrf} up
+ ip ${ns} route add vrf ${vrf} unreachable default metric 8192
+ ip ${ns} -6 route add vrf ${vrf} unreachable default metric 8192
+
+ ip ${ns} addr add 127.0.0.1/8 dev ${vrf}
+ ip ${ns} -6 addr add ::1 dev ${vrf} nodad
+
+ ip ${ns} ru del pref 0
+ ip ${ns} ru add pref 32765 from all lookup local
+ ip ${ns} -6 ru del pref 0
+ ip ${ns} -6 ru add pref 32765 from all lookup local
+}
+
+create_ns()
+{
+ local ns=$1
+ local addr=$2
+ local addr6=$3
+
+ [ -z "${addr}" ] && addr="-"
+ [ -z "${addr6}" ] && addr6="-"
+
+ ip netns add ${ns}
+
+ ip -netns ${ns} link set lo up
+ if [ "${addr}" != "-" ]; then
+ ip -netns ${ns} addr add dev lo ${addr}
+ fi
+ if [ "${addr6}" != "-" ]; then
+ ip -netns ${ns} -6 addr add dev lo ${addr6}
+ fi
+
+ ip -netns ${ns} ro add unreachable default metric 8192
+ ip -netns ${ns} -6 ro add unreachable default metric 8192
+
+ ip netns exec ${ns} sysctl -qw net.ipv4.ip_forward=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.forwarding=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.forwarding=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.accept_dad=0
+}
+
+# create veth pair to connect namespaces and apply addresses.
+connect_ns()
+{
+ local ns1=$1
+ local ns1_dev=$2
+ local ns1_addr=$3
+ local ns1_addr6=$4
+ local ns2=$5
+ local ns2_dev=$6
+ local ns2_addr=$7
+ local ns2_addr6=$8
+ local ns1arg
+ local ns2arg
+
+ if [ -n "${ns1}" ]; then
+ ns1arg="-netns ${ns1}"
+ fi
+ if [ -n "${ns2}" ]; then
+ ns2arg="-netns ${ns2}"
+ fi
+
+ ip ${ns1arg} li add ${ns1_dev} type veth peer name tmp
+ ip ${ns1arg} li set ${ns1_dev} up
+ ip ${ns1arg} li set tmp netns ${ns2} name ${ns2_dev}
+ ip ${ns2arg} li set ${ns2_dev} up
+
+ if [ "${ns1_addr}" != "-" ]; then
+ ip ${ns1arg} addr add dev ${ns1_dev} ${ns1_addr}
+ ip ${ns2arg} addr add dev ${ns2_dev} ${ns2_addr}
+ fi
+
+ if [ "${ns1_addr6}" != "-" ]; then
+ ip ${ns1arg} addr add dev ${ns1_dev} ${ns1_addr6} nodad
+ ip ${ns2arg} addr add dev ${ns2_dev} ${ns2_addr6} nodad
+ fi
+}
+
+################################################################################
+
+cleanup()
+{
+ ip netns del host1
+ ip netns del host2
+}
+
+setup()
+{
+ create_ns "host1"
+ create_ns "host2"
+
+ connect_ns "host1" eth0 ${HOST1_4}/24 ${HOST1_6}/64 \
+ "host2" eth0 ${HOST2_4}/24 ${HOST2_6}/64
+
+ create_vrf "host1" ${VRF} ${TABLE}
+ ip -netns host1 link set dev eth0 master ${VRF}
+}
+
+cleanup_xfrm()
+{
+ for ns in host1 host2
+ do
+ for x in state policy
+ do
+ ip -netns ${ns} xfrm ${x} flush
+ ip -6 -netns ${ns} xfrm ${x} flush
+ done
+ done
+}
+
+setup_xfrm()
+{
+ local h1_4=$1
+ local h2_4=$2
+ local h1_6=$3
+ local h2_6=$4
+ local devarg="$5"
+
+ #
+ # policy
+ #
+
+ # host1 - IPv4 out
+ ip -netns host1 xfrm policy add \
+ src ${h1_4} dst ${h2_4} ${devarg} dir out \
+ tmpl src ${HOST1_4} dst ${HOST2_4} proto esp mode tunnel
+
+ # host2 - IPv4 in
+ ip -netns host2 xfrm policy add \
+ src ${h1_4} dst ${h2_4} dir in \
+ tmpl src ${HOST1_4} dst ${HOST2_4} proto esp mode tunnel
+
+ # host1 - IPv4 in
+ ip -netns host1 xfrm policy add \
+ src ${h2_4} dst ${h1_4} ${devarg} dir in \
+ tmpl src ${HOST2_4} dst ${HOST1_4} proto esp mode tunnel
+
+ # host2 - IPv4 out
+ ip -netns host2 xfrm policy add \
+ src ${h2_4} dst ${h1_4} dir out \
+ tmpl src ${HOST2_4} dst ${HOST1_4} proto esp mode tunnel
+
+
+ # host1 - IPv6 out
+ ip -6 -netns host1 xfrm policy add \
+ src ${h1_6} dst ${h2_6} ${devarg} dir out \
+ tmpl src ${HOST1_6} dst ${HOST2_6} proto esp mode tunnel
+
+ # host2 - IPv6 in
+ ip -6 -netns host2 xfrm policy add \
+ src ${h1_6} dst ${h2_6} dir in \
+ tmpl src ${HOST1_6} dst ${HOST2_6} proto esp mode tunnel
+
+ # host1 - IPv6 in
+ ip -6 -netns host1 xfrm policy add \
+ src ${h2_6} dst ${h1_6} ${devarg} dir in \
+ tmpl src ${HOST2_6} dst ${HOST1_6} proto esp mode tunnel
+
+ # host2 - IPv6 out
+ ip -6 -netns host2 xfrm policy add \
+ src ${h2_6} dst ${h1_6} dir out \
+ tmpl src ${HOST2_6} dst ${HOST1_6} proto esp mode tunnel
+
+ #
+ # state
+ #
+ ip -netns host1 xfrm state add src ${HOST1_4} dst ${HOST2_4} \
+ proto esp spi ${SPI_1} reqid 0 mode tunnel \
+ replay-window 4 replay-oseq 0x4 \
+ auth-trunc 'hmac(sha1)' ${AUTH_1} 96 \
+ enc 'cbc(aes)' ${ENC_1} \
+ sel src ${h1_4} dst ${h2_4} ${devarg}
+
+ ip -netns host2 xfrm state add src ${HOST1_4} dst ${HOST2_4} \
+ proto esp spi ${SPI_1} reqid 0 mode tunnel \
+ replay-window 4 replay-oseq 0x4 \
+ auth-trunc 'hmac(sha1)' ${AUTH_1} 96 \
+ enc 'cbc(aes)' ${ENC_1} \
+ sel src ${h1_4} dst ${h2_4}
+
+
+ ip -netns host1 xfrm state add src ${HOST2_4} dst ${HOST1_4} \
+ proto esp spi ${SPI_2} reqid 0 mode tunnel \
+ replay-window 4 replay-oseq 0x4 \
+ auth-trunc 'hmac(sha1)' ${AUTH_2} 96 \
+ enc 'cbc(aes)' ${ENC_2} \
+ sel src ${h2_4} dst ${h1_4} ${devarg}
+
+ ip -netns host2 xfrm state add src ${HOST2_4} dst ${HOST1_4} \
+ proto esp spi ${SPI_2} reqid 0 mode tunnel \
+ replay-window 4 replay-oseq 0x4 \
+ auth-trunc 'hmac(sha1)' ${AUTH_2} 96 \
+ enc 'cbc(aes)' ${ENC_2} \
+ sel src ${h2_4} dst ${h1_4}
+
+
+ ip -6 -netns host1 xfrm state add src ${HOST1_6} dst ${HOST2_6} \
+ proto esp spi ${SPI_1} reqid 0 mode tunnel \
+ replay-window 4 replay-oseq 0x4 \
+ auth-trunc 'hmac(sha1)' ${AUTH_1} 96 \
+ enc 'cbc(aes)' ${ENC_1} \
+ sel src ${h1_6} dst ${h2_6} ${devarg}
+
+ ip -6 -netns host2 xfrm state add src ${HOST1_6} dst ${HOST2_6} \
+ proto esp spi ${SPI_1} reqid 0 mode tunnel \
+ replay-window 4 replay-oseq 0x4 \
+ auth-trunc 'hmac(sha1)' ${AUTH_1} 96 \
+ enc 'cbc(aes)' ${ENC_1} \
+ sel src ${h1_6} dst ${h2_6}
+
+
+ ip -6 -netns host1 xfrm state add src ${HOST2_6} dst ${HOST1_6} \
+ proto esp spi ${SPI_2} reqid 0 mode tunnel \
+ replay-window 4 replay-oseq 0x4 \
+ auth-trunc 'hmac(sha1)' ${AUTH_2} 96 \
+ enc 'cbc(aes)' ${ENC_2} \
+ sel src ${h2_6} dst ${h1_6} ${devarg}
+
+ ip -6 -netns host2 xfrm state add src ${HOST2_6} dst ${HOST1_6} \
+ proto esp spi ${SPI_2} reqid 0 mode tunnel \
+ replay-window 4 replay-oseq 0x4 \
+ auth-trunc 'hmac(sha1)' ${AUTH_2} 96 \
+ enc 'cbc(aes)' ${ENC_2} \
+ sel src ${h2_6} dst ${h1_6}
+}
+
+cleanup_xfrm_dev()
+{
+ ip -netns host1 li del xfrm0
+ ip -netns host2 addr del ${XFRM2_4}/24 dev eth0
+ ip -netns host2 addr del ${XFRM2_6}/64 dev eth0
+}
+
+setup_xfrm_dev()
+{
+ local vrfarg="vrf ${VRF}"
+
+ ip -netns host1 li add type xfrm dev eth0 if_id ${IF_ID}
+ ip -netns host1 li set xfrm0 ${vrfarg} up
+ ip -netns host1 addr add ${XFRM1_4}/24 dev xfrm0
+ ip -netns host1 addr add ${XFRM1_6}/64 dev xfrm0
+
+ ip -netns host2 addr add ${XFRM2_4}/24 dev eth0
+ ip -netns host2 addr add ${XFRM2_6}/64 dev eth0
+
+ setup_xfrm ${XFRM1_4} ${XFRM2_4} ${XFRM1_6} ${XFRM2_6} "if_id ${IF_ID}"
+}
+
+run_tests()
+{
+ cleanup_xfrm
+
+ # no IPsec
+ run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${HOST2_4}
+ log_test $? 0 "IPv4 no xfrm policy"
+ run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${HOST2_6}
+ log_test $? 0 "IPv6 no xfrm policy"
+
+ # xfrm without VRF in sel
+ setup_xfrm ${HOST1_4} ${HOST2_4} ${HOST1_6} ${HOST2_6}
+ run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${HOST2_4}
+ log_test $? 0 "IPv4 xfrm policy based on address"
+ run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${HOST2_6}
+ log_test $? 0 "IPv6 xfrm policy based on address"
+ cleanup_xfrm
+
+ # xfrm with VRF in sel
+ # Known failure: ipv4 resets the flow oif after the lookup. Fix is
+ # not straightforward.
+ # setup_xfrm ${HOST1_4} ${HOST2_4} ${HOST1_6} ${HOST2_6} "dev ${VRF}"
+ # run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${HOST2_4}
+ # log_test $? 0 "IPv4 xfrm policy with VRF in selector"
+ run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${HOST2_6}
+ log_test $? 0 "IPv6 xfrm policy with VRF in selector"
+ cleanup_xfrm
+
+ # xfrm with enslaved device in sel
+ # Known failures: combined with the above, __xfrm{4,6}_selector_match
+ # needs to consider both l3mdev and enslaved device index.
+ # setup_xfrm ${HOST1_4} ${HOST2_4} ${HOST1_6} ${HOST2_6} "dev eth0"
+ # run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${HOST2_4}
+ # log_test $? 0 "IPv4 xfrm policy with enslaved device in selector"
+ # run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${HOST2_6}
+ # log_test $? 0 "IPv6 xfrm policy with enslaved device in selector"
+ # cleanup_xfrm
+
+ # xfrm device
+ setup_xfrm_dev
+ run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${XFRM2_4}
+ log_test $? 0 "IPv4 xfrm policy with xfrm device"
+ run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${XFRM2_6}
+ log_test $? 0 "IPv6 xfrm policy with xfrm device"
+ cleanup_xfrm_dev
+}
+
+################################################################################
+# usage
+
+usage()
+{
+ cat <<EOF
+usage: ${0##*/} OPTS
+
+ -p Pause on fail
+ -v verbose mode (show commands and output)
+
+done
+EOF
+}
+
+################################################################################
+# main
+
+while getopts :pv o
+do
+ case $o in
+ p) PAUSE_ON_FAIL=yes;;
+ v) VERBOSE=$(($VERBOSE + 1));;
+ h) usage; exit 0;;
+ *) usage; exit 1;;
+ esac
+done
+
+cleanup 2>/dev/null
+setup
+
+echo
+echo "No qdisc on VRF device"
+run_tests
+
+run_cmd_host1 tc qdisc add dev ${VRF} root netem delay 100ms
+echo
+echo "netem qdisc on VRF device"
+run_tests
+
+printf "\nTests passed: %3d\n" ${nsuccess}
+printf "Tests failed: %3d\n" ${nfail}
+
+exit $ret
diff --git a/tools/testing/selftests/net/vrf_route_leaking.sh b/tools/testing/selftests/net/vrf_route_leaking.sh
new file mode 100755
index 000000000..23cf92475
--- /dev/null
+++ b/tools/testing/selftests/net/vrf_route_leaking.sh
@@ -0,0 +1,626 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2019 David Ahern <dsahern@gmail.com>. All rights reserved.
+# Copyright (c) 2020 Michael Jeanson <mjeanson@efficios.com>. All rights reserved.
+#
+# Requires CONFIG_NET_VRF, CONFIG_VETH, CONFIG_BRIDGE and CONFIG_NET_NS.
+#
+#
+# Symmetric routing topology
+#
+# blue red
+# +----+ .253 +----+ .253 +----+
+# | h1 |-------------------| r1 |-------------------| h2 |
+# +----+ .1 +----+ .2 +----+
+# 172.16.1/24 172.16.2/24
+# 2001:db8:16:1/64 2001:db8:16:2/64
+#
+#
+# Route from h1 to h2 and back goes through r1, incoming vrf blue has a route
+# to the outgoing vrf red for the n2 network and red has a route back to n1.
+# The red VRF interface has a MTU of 1400.
+#
+# The first test sends a ping with a ttl of 1 from h1 to h2 and parses the
+# output of the command to check that a ttl expired error is received.
+#
+# The second test runs traceroute from h1 to h2 and parses the output to check
+# for a hop on r1.
+#
+# The third test sends a ping with a packet size of 1450 from h1 to h2 and
+# parses the output of the command to check that a fragmentation error is
+# received.
+#
+#
+# Asymmetric routing topology
+#
+# This topology represents a customer setup where the issue with icmp errors
+# and VRF route leaking was initialy reported. The MTU test isn't done here
+# because of the lack of a return route in the red VRF.
+#
+# blue red
+# .253 +----+ .253
+# +----| r1 |----+
+# | +----+ |
+# +----+ | | +----+
+# | h1 |--------------+ +--------------| h2 |
+# +----+ .1 | | .2 +----+
+# 172.16.1/24 | +----+ | 172.16.2/24
+# 2001:db8:16:1/64 +----| r2 |----+ 2001:db8:16:2/64
+# .254 +----+ .254
+#
+#
+# Route from h1 to h2 goes through r1, incoming vrf blue has a route to the
+# outgoing vrf red for the n2 network but red doesn't have a route back to n1.
+# Route from h2 to h1 goes through r2.
+#
+# The objective is to check that the incoming vrf routing table is selected
+# to send an ICMP error back to the source when the ttl of a packet reaches 1
+# while it is forwarded between different vrfs.
+
+VERBOSE=0
+PAUSE_ON_FAIL=no
+DEFAULT_TTYPE=sym
+
+H1_N1=172.16.1.0/24
+H1_N1_6=2001:db8:16:1::/64
+
+H1_N1_IP=172.16.1.1
+R1_N1_IP=172.16.1.253
+R2_N1_IP=172.16.1.254
+
+H1_N1_IP6=2001:db8:16:1::1
+R1_N1_IP6=2001:db8:16:1::253
+R2_N1_IP6=2001:db8:16:1::254
+
+H2_N2=172.16.2.0/24
+H2_N2_6=2001:db8:16:2::/64
+
+H2_N2_IP=172.16.2.2
+R1_N2_IP=172.16.2.253
+R2_N2_IP=172.16.2.254
+
+H2_N2_IP6=2001:db8:16:2::2
+R1_N2_IP6=2001:db8:16:2::253
+R2_N2_IP6=2001:db8:16:2::254
+
+################################################################################
+# helpers
+
+log_section()
+{
+ echo
+ echo "###########################################################################"
+ echo "$*"
+ echo "###########################################################################"
+ echo
+}
+
+log_test()
+{
+ local rc=$1
+ local expected=$2
+ local msg="$3"
+
+ if [ "${rc}" -eq "${expected}" ]; then
+ printf "TEST: %-60s [ OK ]\n" "${msg}"
+ nsuccess=$((nsuccess+1))
+ else
+ ret=1
+ nfail=$((nfail+1))
+ printf "TEST: %-60s [FAIL]\n" "${msg}"
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read -r a
+ [ "$a" = "q" ] && exit 1
+ fi
+ fi
+}
+
+run_cmd()
+{
+ local cmd="$*"
+ local out
+ local rc
+
+ if [ "$VERBOSE" = "1" ]; then
+ echo "COMMAND: $cmd"
+ fi
+
+ # shellcheck disable=SC2086
+ out=$(eval $cmd 2>&1)
+ rc=$?
+ if [ "$VERBOSE" = "1" ] && [ -n "$out" ]; then
+ echo "$out"
+ fi
+
+ [ "$VERBOSE" = "1" ] && echo
+
+ return $rc
+}
+
+run_cmd_grep()
+{
+ local grep_pattern="$1"
+ shift
+ local cmd="$*"
+ local out
+ local rc
+
+ if [ "$VERBOSE" = "1" ]; then
+ echo "COMMAND: $cmd"
+ fi
+
+ # shellcheck disable=SC2086
+ out=$(eval $cmd 2>&1)
+ if [ "$VERBOSE" = "1" ] && [ -n "$out" ]; then
+ echo "$out"
+ fi
+
+ echo "$out" | grep -q "$grep_pattern"
+ rc=$?
+
+ [ "$VERBOSE" = "1" ] && echo
+
+ return $rc
+}
+
+################################################################################
+# setup and teardown
+
+cleanup()
+{
+ local ns
+
+ for ns in h1 h2 r1 r2; do
+ ip netns del $ns 2>/dev/null
+ done
+}
+
+setup_vrf()
+{
+ local ns=$1
+
+ ip -netns "${ns}" rule del pref 0
+ ip -netns "${ns}" rule add pref 32765 from all lookup local
+ ip -netns "${ns}" -6 rule del pref 0
+ ip -netns "${ns}" -6 rule add pref 32765 from all lookup local
+}
+
+create_vrf()
+{
+ local ns=$1
+ local vrf=$2
+ local table=$3
+
+ ip -netns "${ns}" link add "${vrf}" type vrf table "${table}"
+ ip -netns "${ns}" link set "${vrf}" up
+ ip -netns "${ns}" route add vrf "${vrf}" unreachable default metric 8192
+ ip -netns "${ns}" -6 route add vrf "${vrf}" unreachable default metric 8192
+
+ ip -netns "${ns}" addr add 127.0.0.1/8 dev "${vrf}"
+ ip -netns "${ns}" -6 addr add ::1 dev "${vrf}" nodad
+}
+
+setup_sym()
+{
+ local ns
+
+ # make sure we are starting with a clean slate
+ cleanup
+
+ #
+ # create nodes as namespaces
+ #
+ for ns in h1 h2 r1; do
+ ip netns add $ns
+ ip -netns $ns link set lo up
+
+ case "${ns}" in
+ h[12]) ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=0
+ ip netns exec $ns sysctl -q -w net.ipv6.conf.all.keep_addr_on_down=1
+ ;;
+ r1) ip netns exec $ns sysctl -q -w net.ipv4.ip_forward=1
+ ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=1
+ esac
+ done
+
+ #
+ # create interconnects
+ #
+ ip -netns h1 link add eth0 type veth peer name r1h1
+ ip -netns h1 link set r1h1 netns r1 name eth0 up
+
+ ip -netns h2 link add eth0 type veth peer name r1h2
+ ip -netns h2 link set r1h2 netns r1 name eth1 up
+
+ #
+ # h1
+ #
+ ip -netns h1 addr add dev eth0 ${H1_N1_IP}/24
+ ip -netns h1 -6 addr add dev eth0 ${H1_N1_IP6}/64 nodad
+ ip -netns h1 link set eth0 up
+
+ # h1 to h2 via r1
+ ip -netns h1 route add ${H2_N2} via ${R1_N1_IP} dev eth0
+ ip -netns h1 -6 route add ${H2_N2_6} via "${R1_N1_IP6}" dev eth0
+
+ #
+ # h2
+ #
+ ip -netns h2 addr add dev eth0 ${H2_N2_IP}/24
+ ip -netns h2 -6 addr add dev eth0 ${H2_N2_IP6}/64 nodad
+ ip -netns h2 link set eth0 up
+
+ # h2 to h1 via r1
+ ip -netns h2 route add default via ${R1_N2_IP} dev eth0
+ ip -netns h2 -6 route add default via ${R1_N2_IP6} dev eth0
+
+ #
+ # r1
+ #
+ setup_vrf r1
+ create_vrf r1 blue 1101
+ create_vrf r1 red 1102
+ ip -netns r1 link set mtu 1400 dev eth1
+ ip -netns r1 link set eth0 vrf blue up
+ ip -netns r1 link set eth1 vrf red up
+ ip -netns r1 addr add dev eth0 ${R1_N1_IP}/24
+ ip -netns r1 -6 addr add dev eth0 ${R1_N1_IP6}/64 nodad
+ ip -netns r1 addr add dev eth1 ${R1_N2_IP}/24
+ ip -netns r1 -6 addr add dev eth1 ${R1_N2_IP6}/64 nodad
+
+ # Route leak from blue to red
+ ip -netns r1 route add vrf blue ${H2_N2} dev red
+ ip -netns r1 -6 route add vrf blue ${H2_N2_6} dev red
+
+ # Route leak from red to blue
+ ip -netns r1 route add vrf red ${H1_N1} dev blue
+ ip -netns r1 -6 route add vrf red ${H1_N1_6} dev blue
+
+
+ # Wait for ip config to settle
+ sleep 2
+}
+
+setup_asym()
+{
+ local ns
+
+ # make sure we are starting with a clean slate
+ cleanup
+
+ #
+ # create nodes as namespaces
+ #
+ for ns in h1 h2 r1 r2; do
+ ip netns add $ns
+ ip -netns $ns link set lo up
+
+ case "${ns}" in
+ h[12]) ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=0
+ ip netns exec $ns sysctl -q -w net.ipv6.conf.all.keep_addr_on_down=1
+ ;;
+ r[12]) ip netns exec $ns sysctl -q -w net.ipv4.ip_forward=1
+ ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=1
+ esac
+ done
+
+ #
+ # create interconnects
+ #
+ ip -netns h1 link add eth0 type veth peer name r1h1
+ ip -netns h1 link set r1h1 netns r1 name eth0 up
+
+ ip -netns h1 link add eth1 type veth peer name r2h1
+ ip -netns h1 link set r2h1 netns r2 name eth0 up
+
+ ip -netns h2 link add eth0 type veth peer name r1h2
+ ip -netns h2 link set r1h2 netns r1 name eth1 up
+
+ ip -netns h2 link add eth1 type veth peer name r2h2
+ ip -netns h2 link set r2h2 netns r2 name eth1 up
+
+ #
+ # h1
+ #
+ ip -netns h1 link add br0 type bridge
+ ip -netns h1 link set br0 up
+ ip -netns h1 addr add dev br0 ${H1_N1_IP}/24
+ ip -netns h1 -6 addr add dev br0 ${H1_N1_IP6}/64 nodad
+ ip -netns h1 link set eth0 master br0 up
+ ip -netns h1 link set eth1 master br0 up
+
+ # h1 to h2 via r1
+ ip -netns h1 route add ${H2_N2} via ${R1_N1_IP} dev br0
+ ip -netns h1 -6 route add ${H2_N2_6} via "${R1_N1_IP6}" dev br0
+
+ #
+ # h2
+ #
+ ip -netns h2 link add br0 type bridge
+ ip -netns h2 link set br0 up
+ ip -netns h2 addr add dev br0 ${H2_N2_IP}/24
+ ip -netns h2 -6 addr add dev br0 ${H2_N2_IP6}/64 nodad
+ ip -netns h2 link set eth0 master br0 up
+ ip -netns h2 link set eth1 master br0 up
+
+ # h2 to h1 via r2
+ ip -netns h2 route add default via ${R2_N2_IP} dev br0
+ ip -netns h2 -6 route add default via ${R2_N2_IP6} dev br0
+
+ #
+ # r1
+ #
+ setup_vrf r1
+ create_vrf r1 blue 1101
+ create_vrf r1 red 1102
+ ip -netns r1 link set mtu 1400 dev eth1
+ ip -netns r1 link set eth0 vrf blue up
+ ip -netns r1 link set eth1 vrf red up
+ ip -netns r1 addr add dev eth0 ${R1_N1_IP}/24
+ ip -netns r1 -6 addr add dev eth0 ${R1_N1_IP6}/64 nodad
+ ip -netns r1 addr add dev eth1 ${R1_N2_IP}/24
+ ip -netns r1 -6 addr add dev eth1 ${R1_N2_IP6}/64 nodad
+
+ # Route leak from blue to red
+ ip -netns r1 route add vrf blue ${H2_N2} dev red
+ ip -netns r1 -6 route add vrf blue ${H2_N2_6} dev red
+
+ # No route leak from red to blue
+
+ #
+ # r2
+ #
+ ip -netns r2 addr add dev eth0 ${R2_N1_IP}/24
+ ip -netns r2 -6 addr add dev eth0 ${R2_N1_IP6}/64 nodad
+ ip -netns r2 addr add dev eth1 ${R2_N2_IP}/24
+ ip -netns r2 -6 addr add dev eth1 ${R2_N2_IP6}/64 nodad
+
+ # Wait for ip config to settle
+ sleep 2
+}
+
+check_connectivity()
+{
+ ip netns exec h1 ping -c1 -w1 ${H2_N2_IP} >/dev/null 2>&1
+ log_test $? 0 "Basic IPv4 connectivity"
+ return $?
+}
+
+check_connectivity6()
+{
+ ip netns exec h1 "${ping6}" -c1 -w1 ${H2_N2_IP6} >/dev/null 2>&1
+ log_test $? 0 "Basic IPv6 connectivity"
+ return $?
+}
+
+check_traceroute()
+{
+ if [ ! -x "$(command -v traceroute)" ]; then
+ echo "SKIP: Could not run IPV4 test without traceroute"
+ return 1
+ fi
+}
+
+check_traceroute6()
+{
+ if [ ! -x "$(command -v traceroute6)" ]; then
+ echo "SKIP: Could not run IPV6 test without traceroute6"
+ return 1
+ fi
+}
+
+ipv4_traceroute()
+{
+ local ttype="$1"
+
+ [ "x$ttype" = "x" ] && ttype="$DEFAULT_TTYPE"
+
+ log_section "IPv4 ($ttype route): VRF ICMP error route lookup traceroute"
+
+ check_traceroute || return
+
+ setup_"$ttype"
+
+ check_connectivity || return
+
+ run_cmd_grep "${R1_N1_IP}" ip netns exec h1 traceroute ${H2_N2_IP}
+ log_test $? 0 "Traceroute reports a hop on r1"
+}
+
+ipv4_traceroute_asym()
+{
+ ipv4_traceroute asym
+}
+
+ipv6_traceroute()
+{
+ local ttype="$1"
+
+ [ "x$ttype" = "x" ] && ttype="$DEFAULT_TTYPE"
+
+ log_section "IPv6 ($ttype route): VRF ICMP error route lookup traceroute"
+
+ check_traceroute6 || return
+
+ setup_"$ttype"
+
+ check_connectivity6 || return
+
+ run_cmd_grep "${R1_N1_IP6}" ip netns exec h1 traceroute6 ${H2_N2_IP6}
+ log_test $? 0 "Traceroute6 reports a hop on r1"
+}
+
+ipv6_traceroute_asym()
+{
+ ipv6_traceroute asym
+}
+
+ipv4_ping_ttl()
+{
+ local ttype="$1"
+
+ [ "x$ttype" = "x" ] && ttype="$DEFAULT_TTYPE"
+
+ log_section "IPv4 ($ttype route): VRF ICMP ttl error route lookup ping"
+
+ setup_"$ttype"
+
+ check_connectivity || return
+
+ run_cmd_grep "Time to live exceeded" ip netns exec h1 ping -t1 -c1 -W2 ${H2_N2_IP}
+ log_test $? 0 "Ping received ICMP ttl exceeded"
+}
+
+ipv4_ping_ttl_asym()
+{
+ ipv4_ping_ttl asym
+}
+
+ipv4_ping_frag()
+{
+ local ttype="$1"
+
+ [ "x$ttype" = "x" ] && ttype="$DEFAULT_TTYPE"
+
+ log_section "IPv4 ($ttype route): VRF ICMP fragmentation error route lookup ping"
+
+ setup_"$ttype"
+
+ check_connectivity || return
+
+ run_cmd_grep "Frag needed" ip netns exec h1 ping -s 1450 -Mdo -c1 -W2 ${H2_N2_IP}
+ log_test $? 0 "Ping received ICMP Frag needed"
+}
+
+ipv4_ping_frag_asym()
+{
+ ipv4_ping_frag asym
+}
+
+ipv6_ping_ttl()
+{
+ local ttype="$1"
+
+ [ "x$ttype" = "x" ] && ttype="$DEFAULT_TTYPE"
+
+ log_section "IPv6 ($ttype route): VRF ICMP ttl error route lookup ping"
+
+ setup_"$ttype"
+
+ check_connectivity6 || return
+
+ run_cmd_grep "Time exceeded: Hop limit" ip netns exec h1 "${ping6}" -t1 -c1 -W2 ${H2_N2_IP6}
+ log_test $? 0 "Ping received ICMP Hop limit"
+}
+
+ipv6_ping_ttl_asym()
+{
+ ipv6_ping_ttl asym
+}
+
+ipv6_ping_frag()
+{
+ local ttype="$1"
+
+ [ "x$ttype" = "x" ] && ttype="$DEFAULT_TTYPE"
+
+ log_section "IPv6 ($ttype route): VRF ICMP fragmentation error route lookup ping"
+
+ setup_"$ttype"
+
+ check_connectivity6 || return
+
+ run_cmd_grep "Packet too big" ip netns exec h1 "${ping6}" -s 1450 -Mdo -c1 -W2 ${H2_N2_IP6}
+ log_test $? 0 "Ping received ICMP Packet too big"
+}
+
+ipv6_ping_frag_asym()
+{
+ ipv6_ping_frag asym
+}
+
+################################################################################
+# usage
+
+usage()
+{
+ cat <<EOF
+usage: ${0##*/} OPTS
+
+ -4 Run IPv4 tests only
+ -6 Run IPv6 tests only
+ -t TEST Run only TEST
+ -p Pause on fail
+ -v verbose mode (show commands and output)
+EOF
+}
+
+################################################################################
+# main
+
+# Some systems don't have a ping6 binary anymore
+command -v ping6 > /dev/null 2>&1 && ping6=$(command -v ping6) || ping6=$(command -v ping)
+
+TESTS_IPV4="ipv4_ping_ttl ipv4_traceroute ipv4_ping_frag ipv4_ping_ttl_asym ipv4_traceroute_asym"
+TESTS_IPV6="ipv6_ping_ttl ipv6_traceroute ipv6_ping_frag ipv6_ping_ttl_asym ipv6_traceroute_asym"
+
+ret=0
+nsuccess=0
+nfail=0
+
+while getopts :46t:pvh o
+do
+ case $o in
+ 4) TESTS=ipv4;;
+ 6) TESTS=ipv6;;
+ t) TESTS=$OPTARG;;
+ p) PAUSE_ON_FAIL=yes;;
+ v) VERBOSE=1;;
+ h) usage; exit 0;;
+ *) usage; exit 1;;
+ esac
+done
+
+#
+# show user test config
+#
+if [ -z "$TESTS" ]; then
+ TESTS="$TESTS_IPV4 $TESTS_IPV6"
+elif [ "$TESTS" = "ipv4" ]; then
+ TESTS="$TESTS_IPV4"
+elif [ "$TESTS" = "ipv6" ]; then
+ TESTS="$TESTS_IPV6"
+fi
+
+for t in $TESTS
+do
+ case $t in
+ ipv4_ping_ttl|ping) ipv4_ping_ttl;;&
+ ipv4_ping_ttl_asym|ping) ipv4_ping_ttl_asym;;&
+ ipv4_traceroute|traceroute) ipv4_traceroute;;&
+ ipv4_traceroute_asym|traceroute) ipv4_traceroute_asym;;&
+ ipv4_ping_frag|ping) ipv4_ping_frag;;&
+
+ ipv6_ping_ttl|ping) ipv6_ping_ttl;;&
+ ipv6_ping_ttl_asym|ping) ipv6_ping_ttl_asym;;&
+ ipv6_traceroute|traceroute) ipv6_traceroute;;&
+ ipv6_traceroute_asym|traceroute) ipv6_traceroute_asym;;&
+ ipv6_ping_frag|ping) ipv6_ping_frag;;&
+
+ # setup namespaces and config, but do not run any tests
+ setup_sym|setup) setup_sym; exit 0;;
+ setup_asym) setup_asym; exit 0;;
+
+ help) echo "Test names: $TESTS"; exit 0;;
+ esac
+done
+
+cleanup
+
+printf "\nTests passed: %3d\n" ${nsuccess}
+printf "Tests failed: %3d\n" ${nfail}
+
+exit $ret
diff --git a/tools/testing/selftests/net/vrf_strict_mode_test.sh b/tools/testing/selftests/net/vrf_strict_mode_test.sh
new file mode 100755
index 000000000..18b982d61
--- /dev/null
+++ b/tools/testing/selftests/net/vrf_strict_mode_test.sh
@@ -0,0 +1,396 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test is designed for testing the new VRF strict_mode functionality.
+
+ret=0
+
+# identifies the "init" network namespace which is often called root network
+# namespace.
+INIT_NETNS_NAME="init"
+
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+
+log_test()
+{
+ local rc=$1
+ local expected=$2
+ local msg="$3"
+
+ if [ ${rc} -eq ${expected} ]; then
+ nsuccess=$((nsuccess+1))
+ printf "\n TEST: %-60s [ OK ]\n" "${msg}"
+ else
+ ret=1
+ nfail=$((nfail+1))
+ printf "\n TEST: %-60s [FAIL]\n" "${msg}"
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+ fi
+}
+
+print_log_test_results()
+{
+ if [ "$TESTS" != "none" ]; then
+ printf "\nTests passed: %3d\n" ${nsuccess}
+ printf "Tests failed: %3d\n" ${nfail}
+ fi
+}
+
+log_section()
+{
+ echo
+ echo "################################################################################"
+ echo "TEST SECTION: $*"
+ echo "################################################################################"
+}
+
+ip_expand_args()
+{
+ local nsname=$1
+ local nsarg=""
+
+ if [ "${nsname}" != "${INIT_NETNS_NAME}" ]; then
+ nsarg="-netns ${nsname}"
+ fi
+
+ echo "${nsarg}"
+}
+
+vrf_count()
+{
+ local nsname=$1
+ local nsarg="$(ip_expand_args ${nsname})"
+
+ ip ${nsarg} -o link show type vrf | wc -l
+}
+
+count_vrf_by_table_id()
+{
+ local nsname=$1
+ local tableid=$2
+ local nsarg="$(ip_expand_args ${nsname})"
+
+ ip ${nsarg} -d -o link show type vrf | grep "table ${tableid}" | wc -l
+}
+
+add_vrf()
+{
+ local nsname=$1
+ local vrfname=$2
+ local vrftable=$3
+ local nsarg="$(ip_expand_args ${nsname})"
+
+ ip ${nsarg} link add ${vrfname} type vrf table ${vrftable} &>/dev/null
+}
+
+add_vrf_and_check()
+{
+ local nsname=$1
+ local vrfname=$2
+ local vrftable=$3
+ local cnt
+ local rc
+
+ add_vrf ${nsname} ${vrfname} ${vrftable}; rc=$?
+
+ cnt=$(count_vrf_by_table_id ${nsname} ${vrftable})
+
+ log_test ${rc} 0 "${nsname}: add vrf ${vrfname}, ${cnt} vrfs for table ${vrftable}"
+}
+
+add_vrf_and_check_fail()
+{
+ local nsname=$1
+ local vrfname=$2
+ local vrftable=$3
+ local cnt
+ local rc
+
+ add_vrf ${nsname} ${vrfname} ${vrftable}; rc=$?
+
+ cnt=$(count_vrf_by_table_id ${nsname} ${vrftable})
+
+ log_test ${rc} 2 "${nsname}: CANNOT add vrf ${vrfname}, ${cnt} vrfs for table ${vrftable}"
+}
+
+del_vrf_and_check()
+{
+ local nsname=$1
+ local vrfname=$2
+ local nsarg="$(ip_expand_args ${nsname})"
+
+ ip ${nsarg} link del ${vrfname}
+ log_test $? 0 "${nsname}: remove vrf ${vrfname}"
+}
+
+config_vrf_and_check()
+{
+ local nsname=$1
+ local addr=$2
+ local vrfname=$3
+ local nsarg="$(ip_expand_args ${nsname})"
+
+ ip ${nsarg} link set dev ${vrfname} up && \
+ ip ${nsarg} addr add ${addr} dev ${vrfname}
+ log_test $? 0 "${nsname}: vrf ${vrfname} up, addr ${addr}"
+}
+
+read_strict_mode()
+{
+ local nsname=$1
+ local rval
+ local rc=0
+ local nsexec=""
+
+ if [ "${nsname}" != "${INIT_NETNS_NAME}" ]; then
+ # a custom network namespace is provided
+ nsexec="ip netns exec ${nsname}"
+ fi
+
+ rval="$(${nsexec} bash -c "cat /proc/sys/net/vrf/strict_mode" | \
+ grep -E "^[0-1]$")" &> /dev/null
+ if [ $? -ne 0 ]; then
+ # set errors
+ rval=255
+ rc=1
+ fi
+
+ # on success, rval can be only 0 or 1; on error, rval is equal to 255
+ echo ${rval}
+ return ${rc}
+}
+
+read_strict_mode_compare_and_check()
+{
+ local nsname=$1
+ local expected=$2
+ local res
+
+ res="$(read_strict_mode ${nsname})"
+ log_test ${res} ${expected} "${nsname}: check strict_mode=${res}"
+}
+
+set_strict_mode()
+{
+ local nsname=$1
+ local val=$2
+ local nsexec=""
+
+ if [ "${nsname}" != "${INIT_NETNS_NAME}" ]; then
+ # a custom network namespace is provided
+ nsexec="ip netns exec ${nsname}"
+ fi
+
+ ${nsexec} bash -c "echo ${val} >/proc/sys/net/vrf/strict_mode" &>/dev/null
+}
+
+enable_strict_mode()
+{
+ local nsname=$1
+
+ set_strict_mode ${nsname} 1
+}
+
+disable_strict_mode()
+{
+ local nsname=$1
+
+ set_strict_mode ${nsname} 0
+}
+
+disable_strict_mode_and_check()
+{
+ local nsname=$1
+
+ disable_strict_mode ${nsname}
+ log_test $? 0 "${nsname}: disable strict_mode (=0)"
+}
+
+enable_strict_mode_and_check()
+{
+ local nsname=$1
+
+ enable_strict_mode ${nsname}
+ log_test $? 0 "${nsname}: enable strict_mode (=1)"
+}
+
+enable_strict_mode_and_check_fail()
+{
+ local nsname=$1
+
+ enable_strict_mode ${nsname}
+ log_test $? 1 "${nsname}: CANNOT enable strict_mode"
+}
+
+strict_mode_check_default()
+{
+ local nsname=$1
+ local strictmode
+ local vrfcnt
+
+ vrfcnt=$(vrf_count ${nsname})
+ strictmode=$(read_strict_mode ${nsname})
+ log_test ${strictmode} 0 "${nsname}: strict_mode=0 by default, ${vrfcnt} vrfs"
+}
+
+setup()
+{
+ modprobe vrf
+
+ ip netns add testns
+ ip netns exec testns ip link set lo up
+}
+
+cleanup()
+{
+ ip netns del testns 2>/dev/null
+
+ ip link del vrf100 2>/dev/null
+ ip link del vrf101 2>/dev/null
+ ip link del vrf102 2>/dev/null
+
+ echo 0 >/proc/sys/net/vrf/strict_mode 2>/dev/null
+}
+
+vrf_strict_mode_tests_init()
+{
+ vrf_strict_mode_check_support init
+
+ strict_mode_check_default init
+
+ add_vrf_and_check init vrf100 100
+ config_vrf_and_check init 172.16.100.1/24 vrf100
+
+ enable_strict_mode_and_check init
+
+ add_vrf_and_check_fail init vrf101 100
+
+ disable_strict_mode_and_check init
+
+ add_vrf_and_check init vrf101 100
+ config_vrf_and_check init 172.16.101.1/24 vrf101
+
+ enable_strict_mode_and_check_fail init
+
+ del_vrf_and_check init vrf101
+
+ enable_strict_mode_and_check init
+
+ add_vrf_and_check init vrf102 102
+ config_vrf_and_check init 172.16.102.1/24 vrf102
+
+ # the strict_modle is enabled in the init
+}
+
+vrf_strict_mode_tests_testns()
+{
+ vrf_strict_mode_check_support testns
+
+ strict_mode_check_default testns
+
+ enable_strict_mode_and_check testns
+
+ add_vrf_and_check testns vrf100 100
+ config_vrf_and_check testns 10.0.100.1/24 vrf100
+
+ add_vrf_and_check_fail testns vrf101 100
+
+ add_vrf_and_check_fail testns vrf102 100
+
+ add_vrf_and_check testns vrf200 200
+
+ disable_strict_mode_and_check testns
+
+ add_vrf_and_check testns vrf101 100
+
+ add_vrf_and_check testns vrf102 100
+
+ #the strict_mode is disabled in the testns
+}
+
+vrf_strict_mode_tests_mix()
+{
+ read_strict_mode_compare_and_check init 1
+
+ read_strict_mode_compare_and_check testns 0
+
+ del_vrf_and_check testns vrf101
+
+ del_vrf_and_check testns vrf102
+
+ disable_strict_mode_and_check init
+
+ enable_strict_mode_and_check testns
+
+ enable_strict_mode_and_check init
+ enable_strict_mode_and_check init
+
+ disable_strict_mode_and_check testns
+ disable_strict_mode_and_check testns
+
+ read_strict_mode_compare_and_check init 1
+
+ read_strict_mode_compare_and_check testns 0
+}
+
+vrf_strict_mode_tests()
+{
+ log_section "VRF strict_mode test on init network namespace"
+ vrf_strict_mode_tests_init
+
+ log_section "VRF strict_mode test on testns network namespace"
+ vrf_strict_mode_tests_testns
+
+ log_section "VRF strict_mode test mixing init and testns network namespaces"
+ vrf_strict_mode_tests_mix
+}
+
+vrf_strict_mode_check_support()
+{
+ local nsname=$1
+ local output
+ local rc
+
+ output="$(lsmod | grep '^vrf' | awk '{print $1}')"
+ if [ -z "${output}" ]; then
+ modinfo vrf || return $?
+ fi
+
+ # we do not care about the value of the strict_mode; we only check if
+ # the strict_mode parameter is available or not.
+ read_strict_mode ${nsname} &>/dev/null; rc=$?
+ log_test ${rc} 0 "${nsname}: net.vrf.strict_mode is available"
+
+ return ${rc}
+}
+
+if [ "$(id -u)" -ne 0 ];then
+ echo "SKIP: Need root privileges"
+ exit 0
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+ echo "SKIP: Could not run test without ip tool"
+ exit 0
+fi
+
+modprobe vrf &>/dev/null
+if [ ! -e /proc/sys/net/vrf/strict_mode ]; then
+ echo "SKIP: vrf sysctl does not exist"
+ exit 0
+fi
+
+cleanup &> /dev/null
+
+setup
+vrf_strict_mode_tests
+cleanup
+
+print_log_test_results
+
+exit $ret
diff --git a/tools/testing/selftests/net/xfrm_policy.sh b/tools/testing/selftests/net/xfrm_policy.sh
new file mode 100755
index 000000000..bdf450eaf
--- /dev/null
+++ b/tools/testing/selftests/net/xfrm_policy.sh
@@ -0,0 +1,486 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Check xfrm policy resolution. Topology:
+#
+# 1.2 1.1 3.1 3.10 2.1 2.2
+# eth1 eth1 veth0 veth0 eth1 eth1
+# ns1 ---- ns3 ----- ns4 ---- ns2
+#
+# ns3 and ns4 are connected via ipsec tunnel.
+# pings from ns1 to ns2 (and vice versa) are supposed to work like this:
+# ns1: ping 10.0.2.2: passes via ipsec tunnel.
+# ns2: ping 10.0.1.2: passes via ipsec tunnel.
+
+# ns1: ping 10.0.1.253: passes via ipsec tunnel (direct policy)
+# ns2: ping 10.0.2.253: passes via ipsec tunnel (direct policy)
+#
+# ns1: ping 10.0.2.254: does NOT pass via ipsec tunnel (exception)
+# ns2: ping 10.0.1.254: does NOT pass via ipsec tunnel (exception)
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+ret=0
+policy_checks_ok=1
+
+KEY_SHA=0xdeadbeef1234567890abcdefabcdefabcdefabcd
+KEY_AES=0x0123456789abcdef0123456789012345
+SPI1=0x1
+SPI2=0x2
+
+do_esp_policy() {
+ local ns=$1
+ local me=$2
+ local remote=$3
+ local lnet=$4
+ local rnet=$5
+
+ # to encrypt packets as they go out (includes forwarded packets that need encapsulation)
+ ip -net $ns xfrm policy add src $lnet dst $rnet dir out tmpl src $me dst $remote proto esp mode tunnel priority 100 action allow
+ # to fwd decrypted packets after esp processing:
+ ip -net $ns xfrm policy add src $rnet dst $lnet dir fwd tmpl src $remote dst $me proto esp mode tunnel priority 100 action allow
+}
+
+do_esp() {
+ local ns=$1
+ local me=$2
+ local remote=$3
+ local lnet=$4
+ local rnet=$5
+ local spi_out=$6
+ local spi_in=$7
+
+ ip -net $ns xfrm state add src $remote dst $me proto esp spi $spi_in enc aes $KEY_AES auth sha1 $KEY_SHA mode tunnel sel src $rnet dst $lnet
+ ip -net $ns xfrm state add src $me dst $remote proto esp spi $spi_out enc aes $KEY_AES auth sha1 $KEY_SHA mode tunnel sel src $lnet dst $rnet
+
+ do_esp_policy $ns $me $remote $lnet $rnet
+}
+
+# add policies with different netmasks, to make sure kernel carries
+# the policies contained within new netmask over when search tree is
+# re-built.
+# peer netns that are supposed to be encapsulated via esp have addresses
+# in the 10.0.1.0/24 and 10.0.2.0/24 subnets, respectively.
+#
+# Adding a policy for '10.0.1.0/23' will make it necessary to
+# alter the prefix of 10.0.1.0 subnet.
+# In case new prefix overlaps with existing node, the node and all
+# policies it carries need to be merged with the existing one(s).
+#
+# Do that here.
+do_overlap()
+{
+ local ns=$1
+
+ # adds new nodes to tree (neither network exists yet in policy database).
+ ip -net $ns xfrm policy add src 10.1.0.0/24 dst 10.0.0.0/24 dir fwd priority 200 action block
+
+ # adds a new node in the 10.0.0.0/24 tree (dst node exists).
+ ip -net $ns xfrm policy add src 10.2.0.0/24 dst 10.0.0.0/24 dir fwd priority 200 action block
+
+ # adds a 10.2.0.0/23 node, but for different dst.
+ ip -net $ns xfrm policy add src 10.2.0.0/23 dst 10.0.1.0/24 dir fwd priority 200 action block
+
+ # dst now overlaps with the 10.0.1.0/24 ESP policy in fwd.
+ # kernel must 'promote' existing one (10.0.0.0/24) to 10.0.0.0/23.
+ # But 10.0.0.0/23 also includes existing 10.0.1.0/24, so that node
+ # also has to be merged too, including source-sorted subtrees.
+ # old:
+ # 10.0.0.0/24 (node 1 in dst tree of the bin)
+ # 10.1.0.0/24 (node in src tree of dst node 1)
+ # 10.2.0.0/24 (node in src tree of dst node 1)
+ # 10.0.1.0/24 (node 2 in dst tree of the bin)
+ # 10.0.2.0/24 (node in src tree of dst node 2)
+ # 10.2.0.0/24 (node in src tree of dst node 2)
+ #
+ # The next 'policy add' adds dst '10.0.0.0/23', which means
+ # that dst node 1 and dst node 2 have to be merged including
+ # the sub-tree. As no duplicates are allowed, policies in
+ # the two '10.0.2.0/24' are also merged.
+ #
+ # after the 'add', internal search tree should look like this:
+ # 10.0.0.0/23 (node in dst tree of bin)
+ # 10.0.2.0/24 (node in src tree of dst node)
+ # 10.1.0.0/24 (node in src tree of dst node)
+ # 10.2.0.0/24 (node in src tree of dst node)
+ #
+ # 10.0.0.0/24 and 10.0.1.0/24 nodes have been merged as 10.0.0.0/23.
+ ip -net $ns xfrm policy add src 10.1.0.0/24 dst 10.0.0.0/23 dir fwd priority 200 action block
+
+ # similar to above: add policies (with partially random address), with shrinking prefixes.
+ for p in 29 28 27;do
+ for k in $(seq 1 32); do
+ ip -net $ns xfrm policy add src 10.253.1.$((RANDOM%255))/$p dst 10.254.1.$((RANDOM%255))/$p dir fwd priority $((200+k)) action block 2>/dev/null
+ done
+ done
+}
+
+do_esp_policy_get_check() {
+ local ns=$1
+ local lnet=$2
+ local rnet=$3
+
+ ip -net $ns xfrm policy get src $lnet dst $rnet dir out > /dev/null
+ if [ $? -ne 0 ] && [ $policy_checks_ok -eq 1 ] ;then
+ policy_checks_ok=0
+ echo "FAIL: ip -net $ns xfrm policy get src $lnet dst $rnet dir out"
+ ret=1
+ fi
+
+ ip -net $ns xfrm policy get src $rnet dst $lnet dir fwd > /dev/null
+ if [ $? -ne 0 ] && [ $policy_checks_ok -eq 1 ] ;then
+ policy_checks_ok=0
+ echo "FAIL: ip -net $ns xfrm policy get src $rnet dst $lnet dir fwd"
+ ret=1
+ fi
+}
+
+do_exception() {
+ local ns=$1
+ local me=$2
+ local remote=$3
+ local encryptip=$4
+ local plain=$5
+
+ # network $plain passes without tunnel
+ ip -net $ns xfrm policy add dst $plain dir out priority 10 action allow
+
+ # direct policy for $encryptip, use tunnel, higher prio takes precedence
+ ip -net $ns xfrm policy add dst $encryptip dir out tmpl src $me dst $remote proto esp mode tunnel priority 1 action allow
+}
+
+# policies that are not supposed to match any packets generated in this test.
+do_dummies4() {
+ local ns=$1
+
+ for i in $(seq 10 16);do
+ # dummy policy with wildcard src/dst.
+ echo netns exec $ns ip xfrm policy add src 0.0.0.0/0 dst 10.$i.99.0/30 dir out action block
+ echo netns exec $ns ip xfrm policy add src 10.$i.99.0/30 dst 0.0.0.0/0 dir out action block
+ for j in $(seq 32 64);do
+ echo netns exec $ns ip xfrm policy add src 10.$i.1.0/30 dst 10.$i.$j.0/30 dir out action block
+ # silly, as it encompasses the one above too, but its allowed:
+ echo netns exec $ns ip xfrm policy add src 10.$i.1.0/29 dst 10.$i.$j.0/29 dir out action block
+ # and yet again, even more broad one.
+ echo netns exec $ns ip xfrm policy add src 10.$i.1.0/24 dst 10.$i.$j.0/24 dir out action block
+ echo netns exec $ns ip xfrm policy add src 10.$i.$j.0/24 dst 10.$i.1.0/24 dir fwd action block
+ done
+ done | ip -batch /dev/stdin
+}
+
+do_dummies6() {
+ local ns=$1
+
+ for i in $(seq 10 16);do
+ for j in $(seq 32 64);do
+ echo netns exec $ns ip xfrm policy add src dead:$i::/64 dst dead:$i:$j::/64 dir out action block
+ echo netns exec $ns ip xfrm policy add src dead:$i:$j::/64 dst dead:$i::/24 dir fwd action block
+ done
+ done | ip -batch /dev/stdin
+}
+
+check_ipt_policy_count()
+{
+ ns=$1
+
+ ip netns exec $ns iptables-save -c |grep policy | ( read c rest
+ ip netns exec $ns iptables -Z
+ if [ x"$c" = x'[0:0]' ]; then
+ exit 0
+ elif [ x"$c" = x ]; then
+ echo "ERROR: No counters"
+ ret=1
+ exit 111
+ else
+ exit 1
+ fi
+ )
+}
+
+check_xfrm() {
+ # 0: iptables -m policy rule count == 0
+ # 1: iptables -m policy rule count != 0
+ rval=$1
+ ip=$2
+ local lret=0
+
+ ip netns exec ns1 ping -q -c 1 10.0.2.$ip > /dev/null
+
+ check_ipt_policy_count ns3
+ if [ $? -ne $rval ] ; then
+ lret=1
+ fi
+ check_ipt_policy_count ns4
+ if [ $? -ne $rval ] ; then
+ lret=1
+ fi
+
+ ip netns exec ns2 ping -q -c 1 10.0.1.$ip > /dev/null
+
+ check_ipt_policy_count ns3
+ if [ $? -ne $rval ] ; then
+ lret=1
+ fi
+ check_ipt_policy_count ns4
+ if [ $? -ne $rval ] ; then
+ lret=1
+ fi
+
+ return $lret
+}
+
+check_exceptions()
+{
+ logpostfix="$1"
+ local lret=0
+
+ # ping to .254 should be excluded from the tunnel (exception is in place).
+ check_xfrm 0 254
+ if [ $? -ne 0 ]; then
+ echo "FAIL: expected ping to .254 to fail ($logpostfix)"
+ lret=1
+ else
+ echo "PASS: ping to .254 bypassed ipsec tunnel ($logpostfix)"
+ fi
+
+ # ping to .253 should use use ipsec due to direct policy exception.
+ check_xfrm 1 253
+ if [ $? -ne 0 ]; then
+ echo "FAIL: expected ping to .253 to use ipsec tunnel ($logpostfix)"
+ lret=1
+ else
+ echo "PASS: direct policy matches ($logpostfix)"
+ fi
+
+ # ping to .2 should use ipsec.
+ check_xfrm 1 2
+ if [ $? -ne 0 ]; then
+ echo "FAIL: expected ping to .2 to use ipsec tunnel ($logpostfix)"
+ lret=1
+ else
+ echo "PASS: policy matches ($logpostfix)"
+ fi
+
+ return $lret
+}
+
+check_hthresh_repeat()
+{
+ local log=$1
+ i=0
+
+ for i in $(seq 1 10);do
+ ip -net ns1 xfrm policy update src e000:0001::0000 dst ff01::0014:0000:0001 dir in tmpl src :: dst :: proto esp mode tunnel priority 100 action allow || break
+ ip -net ns1 xfrm policy set hthresh6 0 28 || break
+
+ ip -net ns1 xfrm policy update src e000:0001::0000 dst ff01::01 dir in tmpl src :: dst :: proto esp mode tunnel priority 100 action allow || break
+ ip -net ns1 xfrm policy set hthresh6 0 28 || break
+ done
+
+ if [ $i -ne 10 ] ;then
+ echo "FAIL: $log" 1>&2
+ ret=1
+ return 1
+ fi
+
+ echo "PASS: $log"
+ return 0
+}
+
+# insert non-overlapping policies in a random order and check that
+# all of them can be fetched using the traffic selectors.
+check_random_order()
+{
+ local ns=$1
+ local log=$2
+
+ for i in $(seq 100); do
+ ip -net $ns xfrm policy flush
+ for j in $(seq 0 16 255 | sort -R); do
+ ip -net $ns xfrm policy add dst $j.0.0.0/24 dir out priority 10 action allow
+ done
+ for j in $(seq 0 16 255); do
+ if ! ip -net $ns xfrm policy get dst $j.0.0.0/24 dir out > /dev/null; then
+ echo "FAIL: $log" 1>&2
+ return 1
+ fi
+ done
+ done
+
+ for i in $(seq 100); do
+ ip -net $ns xfrm policy flush
+ for j in $(seq 0 16 255 | sort -R); do
+ local addr=$(printf "e000:0000:%02x00::/56" $j)
+ ip -net $ns xfrm policy add dst $addr dir out priority 10 action allow
+ done
+ for j in $(seq 0 16 255); do
+ local addr=$(printf "e000:0000:%02x00::/56" $j)
+ if ! ip -net $ns xfrm policy get dst $addr dir out > /dev/null; then
+ echo "FAIL: $log" 1>&2
+ return 1
+ fi
+ done
+ done
+
+ ip -net $ns xfrm policy flush
+
+ echo "PASS: $log"
+ return 0
+}
+
+#check for needed privileges
+if [ "$(id -u)" -ne 0 ];then
+ echo "SKIP: Need root privileges"
+ exit $ksft_skip
+fi
+
+ip -Version 2>/dev/null >/dev/null
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without the ip tool"
+ exit $ksft_skip
+fi
+
+# needed to check if policy lookup got valid ipsec result
+iptables --version 2>/dev/null >/dev/null
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without iptables tool"
+ exit $ksft_skip
+fi
+
+for i in 1 2 3 4; do
+ ip netns add ns$i
+ ip -net ns$i link set lo up
+done
+
+DEV=veth0
+ip link add $DEV netns ns1 type veth peer name eth1 netns ns3
+ip link add $DEV netns ns2 type veth peer name eth1 netns ns4
+
+ip link add $DEV netns ns3 type veth peer name veth0 netns ns4
+
+DEV=veth0
+for i in 1 2; do
+ ip -net ns$i link set $DEV up
+ ip -net ns$i addr add 10.0.$i.2/24 dev $DEV
+ ip -net ns$i addr add dead:$i::2/64 dev $DEV
+
+ ip -net ns$i addr add 10.0.$i.253 dev $DEV
+ ip -net ns$i addr add 10.0.$i.254 dev $DEV
+ ip -net ns$i addr add dead:$i::fd dev $DEV
+ ip -net ns$i addr add dead:$i::fe dev $DEV
+done
+
+for i in 3 4; do
+ip -net ns$i link set eth1 up
+ip -net ns$i link set veth0 up
+done
+
+ip -net ns1 route add default via 10.0.1.1
+ip -net ns2 route add default via 10.0.2.1
+
+ip -net ns3 addr add 10.0.1.1/24 dev eth1
+ip -net ns3 addr add 10.0.3.1/24 dev veth0
+ip -net ns3 addr add 2001:1::1/64 dev eth1
+ip -net ns3 addr add 2001:3::1/64 dev veth0
+
+ip -net ns3 route add default via 10.0.3.10
+
+ip -net ns4 addr add 10.0.2.1/24 dev eth1
+ip -net ns4 addr add 10.0.3.10/24 dev veth0
+ip -net ns4 addr add 2001:2::1/64 dev eth1
+ip -net ns4 addr add 2001:3::10/64 dev veth0
+ip -net ns4 route add default via 10.0.3.1
+
+for j in 4 6; do
+ for i in 3 4;do
+ ip netns exec ns$i sysctl net.ipv$j.conf.eth1.forwarding=1 > /dev/null
+ ip netns exec ns$i sysctl net.ipv$j.conf.veth0.forwarding=1 > /dev/null
+ done
+done
+
+# abuse iptables rule counter to check if ping matches a policy
+ip netns exec ns3 iptables -p icmp -A FORWARD -m policy --dir out --pol ipsec
+ip netns exec ns4 iptables -p icmp -A FORWARD -m policy --dir out --pol ipsec
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not insert iptables rule"
+ for i in 1 2 3 4;do ip netns del ns$i;done
+ exit $ksft_skip
+fi
+
+# localip remoteip localnet remotenet
+do_esp ns3 10.0.3.1 10.0.3.10 10.0.1.0/24 10.0.2.0/24 $SPI1 $SPI2
+do_esp ns3 dead:3::1 dead:3::10 dead:1::/64 dead:2::/64 $SPI1 $SPI2
+do_esp ns4 10.0.3.10 10.0.3.1 10.0.2.0/24 10.0.1.0/24 $SPI2 $SPI1
+do_esp ns4 dead:3::10 dead:3::1 dead:2::/64 dead:1::/64 $SPI2 $SPI1
+
+do_dummies4 ns3
+do_dummies6 ns4
+
+do_esp_policy_get_check ns3 10.0.1.0/24 10.0.2.0/24
+do_esp_policy_get_check ns4 10.0.2.0/24 10.0.1.0/24
+do_esp_policy_get_check ns3 dead:1::/64 dead:2::/64
+do_esp_policy_get_check ns4 dead:2::/64 dead:1::/64
+
+# ping to .254 should use ipsec, exception is not installed.
+check_xfrm 1 254
+if [ $? -ne 0 ]; then
+ echo "FAIL: expected ping to .254 to use ipsec tunnel"
+ ret=1
+else
+ echo "PASS: policy before exception matches"
+fi
+
+# installs exceptions
+# localip remoteip encryptdst plaindst
+do_exception ns3 10.0.3.1 10.0.3.10 10.0.2.253 10.0.2.240/28
+do_exception ns4 10.0.3.10 10.0.3.1 10.0.1.253 10.0.1.240/28
+
+do_exception ns3 dead:3::1 dead:3::10 dead:2::fd dead:2:f0::/96
+do_exception ns4 dead:3::10 dead:3::1 dead:1::fd dead:1:f0::/96
+
+check_exceptions "exceptions"
+if [ $? -ne 0 ]; then
+ ret=1
+fi
+
+# insert block policies with adjacent/overlapping netmasks
+do_overlap ns3
+
+check_exceptions "exceptions and block policies"
+if [ $? -ne 0 ]; then
+ ret=1
+fi
+
+for n in ns3 ns4;do
+ ip -net $n xfrm policy set hthresh4 28 24 hthresh6 126 125
+ sleep $((RANDOM%5))
+done
+
+check_exceptions "exceptions and block policies after hresh changes"
+
+# full flush of policy db, check everything gets freed incl. internal meta data
+ip -net ns3 xfrm policy flush
+
+do_esp_policy ns3 10.0.3.1 10.0.3.10 10.0.1.0/24 10.0.2.0/24
+do_exception ns3 10.0.3.1 10.0.3.10 10.0.2.253 10.0.2.240/28
+
+# move inexact policies to hash table
+ip -net ns3 xfrm policy set hthresh4 16 16
+
+sleep $((RANDOM%5))
+check_exceptions "exceptions and block policies after hthresh change in ns3"
+
+# restore original hthresh settings -- move policies back to tables
+for n in ns3 ns4;do
+ ip -net $n xfrm policy set hthresh4 32 32 hthresh6 128 128
+ sleep $((RANDOM%5))
+done
+check_exceptions "exceptions and block policies after htresh change to normal"
+
+check_hthresh_repeat "policies with repeated htresh change"
+
+check_random_order ns3 "policies inserted in random order"
+
+for i in 1 2 3 4;do ip netns del ns$i;done
+
+exit $ret
diff --git a/tools/testing/selftests/netfilter/.gitignore b/tools/testing/selftests/netfilter/.gitignore
new file mode 100644
index 000000000..8448f74ad
--- /dev/null
+++ b/tools/testing/selftests/netfilter/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+nf-queue
diff --git a/tools/testing/selftests/netfilter/Makefile b/tools/testing/selftests/netfilter/Makefile
new file mode 100644
index 000000000..a56cfc4f2
--- /dev/null
+++ b/tools/testing/selftests/netfilter/Makefile
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for netfilter selftests
+
+TEST_PROGS := nft_trans_stress.sh nft_nat.sh bridge_brouter.sh \
+ conntrack_icmp_related.sh nft_flowtable.sh ipvs.sh \
+ nft_concat_range.sh nft_conntrack_helper.sh \
+ nft_queue.sh nft_meta.sh \
+ conntrack_vrf.sh
+
+LDLIBS = -lmnl
+TEST_GEN_FILES = nf-queue
+
+include ../lib.mk
diff --git a/tools/testing/selftests/netfilter/bridge_brouter.sh b/tools/testing/selftests/netfilter/bridge_brouter.sh
new file mode 100755
index 000000000..29f3955b9
--- /dev/null
+++ b/tools/testing/selftests/netfilter/bridge_brouter.sh
@@ -0,0 +1,146 @@
+#!/bin/bash
+#
+# This test is for bridge 'brouting', i.e. make some packets being routed
+# rather than getting bridged even though they arrive on interface that is
+# part of a bridge.
+
+# eth0 br0 eth0
+# setup is: ns1 <-> ns0 <-> ns2
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+ret=0
+
+ebtables -V > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without ebtables"
+ exit $ksft_skip
+fi
+
+ip -Version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+
+ip netns add ns0
+ip netns add ns1
+ip netns add ns2
+
+ip link add veth0 netns ns0 type veth peer name eth0 netns ns1
+if [ $? -ne 0 ]; then
+ echo "SKIP: Can't create veth device"
+ exit $ksft_skip
+fi
+ip link add veth1 netns ns0 type veth peer name eth0 netns ns2
+
+ip -net ns0 link set lo up
+ip -net ns0 link set veth0 up
+ip -net ns0 link set veth1 up
+
+ip -net ns0 link add br0 type bridge
+if [ $? -ne 0 ]; then
+ echo "SKIP: Can't create bridge br0"
+ exit $ksft_skip
+fi
+
+ip -net ns0 link set veth0 master br0
+ip -net ns0 link set veth1 master br0
+ip -net ns0 link set br0 up
+ip -net ns0 addr add 10.0.0.1/24 dev br0
+
+# place both in same subnet, ns1 and ns2 connected via ns0:br0
+for i in 1 2; do
+ ip -net ns$i link set lo up
+ ip -net ns$i link set eth0 up
+ ip -net ns$i addr add 10.0.0.1$i/24 dev eth0
+done
+
+test_ebtables_broute()
+{
+ local cipt
+
+ # redirect is needed so the dstmac is rewritten to the bridge itself,
+ # ip stack won't process OTHERHOST (foreign unicast mac) packets.
+ ip netns exec ns0 ebtables -t broute -A BROUTING -p ipv4 --ip-protocol icmp -j redirect --redirect-target=DROP
+ if [ $? -ne 0 ]; then
+ echo "SKIP: Could not add ebtables broute redirect rule"
+ return $ksft_skip
+ fi
+
+ # ping netns1, expected to not work (ip forwarding is off)
+ ip netns exec ns1 ping -q -c 1 10.0.0.12 > /dev/null 2>&1
+ if [ $? -eq 0 ]; then
+ echo "ERROR: ping works, should have failed" 1>&2
+ return 1
+ fi
+
+ # enable forwarding on both interfaces.
+ # neither needs an ip address, but at least the bridge needs
+ # an ip address in same network segment as ns1 and ns2 (ns0
+ # needs to be able to determine route for to-be-forwarded packet).
+ ip netns exec ns0 sysctl -q net.ipv4.conf.veth0.forwarding=1
+ ip netns exec ns0 sysctl -q net.ipv4.conf.veth1.forwarding=1
+
+ sleep 1
+
+ ip netns exec ns1 ping -q -c 1 10.0.0.12 > /dev/null
+ if [ $? -ne 0 ]; then
+ echo "ERROR: ping did not work, but it should (broute+forward)" 1>&2
+ return 1
+ fi
+
+ echo "PASS: ns1/ns2 connectivity with active broute rule"
+ ip netns exec ns0 ebtables -t broute -F
+
+ # ping netns1, expected to work (frames are bridged)
+ ip netns exec ns1 ping -q -c 1 10.0.0.12 > /dev/null
+ if [ $? -ne 0 ]; then
+ echo "ERROR: ping did not work, but it should (bridged)" 1>&2
+ return 1
+ fi
+
+ ip netns exec ns0 ebtables -t filter -A FORWARD -p ipv4 --ip-protocol icmp -j DROP
+
+ # ping netns1, expected to not work (DROP in bridge forward)
+ ip netns exec ns1 ping -q -c 1 10.0.0.12 > /dev/null 2>&1
+ if [ $? -eq 0 ]; then
+ echo "ERROR: ping works, should have failed (icmp forward drop)" 1>&2
+ return 1
+ fi
+
+ # re-activate brouter
+ ip netns exec ns0 ebtables -t broute -A BROUTING -p ipv4 --ip-protocol icmp -j redirect --redirect-target=DROP
+
+ ip netns exec ns2 ping -q -c 1 10.0.0.11 > /dev/null
+ if [ $? -ne 0 ]; then
+ echo "ERROR: ping did not work, but it should (broute+forward 2)" 1>&2
+ return 1
+ fi
+
+ echo "PASS: ns1/ns2 connectivity with active broute rule and bridge forward drop"
+ return 0
+}
+
+# test basic connectivity
+ip netns exec ns1 ping -c 1 -q 10.0.0.12 > /dev/null
+if [ $? -ne 0 ]; then
+ echo "ERROR: Could not reach ns2 from ns1" 1>&2
+ ret=1
+fi
+
+ip netns exec ns2 ping -c 1 -q 10.0.0.11 > /dev/null
+if [ $? -ne 0 ]; then
+ echo "ERROR: Could not reach ns1 from ns2" 1>&2
+ ret=1
+fi
+
+if [ $ret -eq 0 ];then
+ echo "PASS: netns connectivity: ns1 and ns2 can reach each other"
+fi
+
+test_ebtables_broute
+ret=$?
+for i in 0 1 2; do ip netns del ns$i;done
+
+exit $ret
diff --git a/tools/testing/selftests/netfilter/config b/tools/testing/selftests/netfilter/config
new file mode 100644
index 000000000..4faf2ce02
--- /dev/null
+++ b/tools/testing/selftests/netfilter/config
@@ -0,0 +1,8 @@
+CONFIG_NET_NS=y
+CONFIG_NF_TABLES_INET=y
+CONFIG_NFT_QUEUE=m
+CONFIG_NFT_NAT=m
+CONFIG_NFT_REDIR=m
+CONFIG_NFT_MASQ=m
+CONFIG_NFT_FLOW_OFFLOAD=m
+CONFIG_NF_CT_NETLINK=m
diff --git a/tools/testing/selftests/netfilter/conntrack_icmp_related.sh b/tools/testing/selftests/netfilter/conntrack_icmp_related.sh
new file mode 100755
index 000000000..76645aaf2
--- /dev/null
+++ b/tools/testing/selftests/netfilter/conntrack_icmp_related.sh
@@ -0,0 +1,315 @@
+#!/bin/bash
+#
+# check that ICMP df-needed/pkttoobig icmp are set are set as related
+# state
+#
+# Setup is:
+#
+# nsclient1 -> nsrouter1 -> nsrouter2 -> nsclient2
+# MTU 1500, except for nsrouter2 <-> nsclient2 link (1280).
+# ping nsclient2 from nsclient1, checking that conntrack did set RELATED
+# 'fragmentation needed' icmp packet.
+#
+# In addition, nsrouter1 will perform IP masquerading, i.e. also
+# check the icmp errors are propagated to the correct host as per
+# nat of "established" icmp-echo "connection".
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+ret=0
+
+nft --version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without nft tool"
+ exit $ksft_skip
+fi
+
+ip -Version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+
+cleanup() {
+ for i in 1 2;do ip netns del nsclient$i;done
+ for i in 1 2;do ip netns del nsrouter$i;done
+}
+
+trap cleanup EXIT
+
+ipv4() {
+ echo -n 192.168.$1.2
+}
+
+ipv6 () {
+ echo -n dead:$1::2
+}
+
+check_counter()
+{
+ ns=$1
+ name=$2
+ expect=$3
+ local lret=0
+
+ cnt=$(ip netns exec $ns nft list counter inet filter "$name" | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ echo "ERROR: counter $name in $ns has unexpected value (expected $expect)" 1>&2
+ ip netns exec $ns nft list counter inet filter "$name" 1>&2
+ lret=1
+ fi
+
+ return $lret
+}
+
+check_unknown()
+{
+ expect="packets 0 bytes 0"
+ for n in nsclient1 nsclient2 nsrouter1 nsrouter2; do
+ check_counter $n "unknown" "$expect"
+ if [ $? -ne 0 ] ;then
+ return 1
+ fi
+ done
+
+ return 0
+}
+
+for n in nsclient1 nsclient2 nsrouter1 nsrouter2; do
+ ip netns add $n
+ ip -net $n link set lo up
+done
+
+DEV=veth0
+ip link add $DEV netns nsclient1 type veth peer name eth1 netns nsrouter1
+DEV=veth0
+ip link add $DEV netns nsclient2 type veth peer name eth1 netns nsrouter2
+
+DEV=veth0
+ip link add $DEV netns nsrouter1 type veth peer name eth2 netns nsrouter2
+
+DEV=veth0
+for i in 1 2; do
+ ip -net nsclient$i link set $DEV up
+ ip -net nsclient$i addr add $(ipv4 $i)/24 dev $DEV
+ ip -net nsclient$i addr add $(ipv6 $i)/64 dev $DEV
+done
+
+ip -net nsrouter1 link set eth1 up
+ip -net nsrouter1 link set veth0 up
+
+ip -net nsrouter2 link set eth1 up
+ip -net nsrouter2 link set eth2 up
+
+ip -net nsclient1 route add default via 192.168.1.1
+ip -net nsclient1 -6 route add default via dead:1::1
+
+ip -net nsclient2 route add default via 192.168.2.1
+ip -net nsclient2 route add default via dead:2::1
+
+i=3
+ip -net nsrouter1 addr add 192.168.1.1/24 dev eth1
+ip -net nsrouter1 addr add 192.168.3.1/24 dev veth0
+ip -net nsrouter1 addr add dead:1::1/64 dev eth1
+ip -net nsrouter1 addr add dead:3::1/64 dev veth0
+ip -net nsrouter1 route add default via 192.168.3.10
+ip -net nsrouter1 -6 route add default via dead:3::10
+
+ip -net nsrouter2 addr add 192.168.2.1/24 dev eth1
+ip -net nsrouter2 addr add 192.168.3.10/24 dev eth2
+ip -net nsrouter2 addr add dead:2::1/64 dev eth1
+ip -net nsrouter2 addr add dead:3::10/64 dev eth2
+ip -net nsrouter2 route add default via 192.168.3.1
+ip -net nsrouter2 route add default via dead:3::1
+
+sleep 2
+for i in 4 6; do
+ ip netns exec nsrouter1 sysctl -q net.ipv$i.conf.all.forwarding=1
+ ip netns exec nsrouter2 sysctl -q net.ipv$i.conf.all.forwarding=1
+done
+
+for netns in nsrouter1 nsrouter2; do
+ip netns exec $netns nft -f - <<EOF
+table inet filter {
+ counter unknown { }
+ counter related { }
+ chain forward {
+ type filter hook forward priority 0; policy accept;
+ meta l4proto icmpv6 icmpv6 type "packet-too-big" ct state "related" counter name "related" accept
+ meta l4proto icmp icmp type "destination-unreachable" ct state "related" counter name "related" accept
+ meta l4proto { icmp, icmpv6 } ct state new,established accept
+ counter name "unknown" drop
+ }
+}
+EOF
+done
+
+ip netns exec nsclient1 nft -f - <<EOF
+table inet filter {
+ counter unknown { }
+ counter related { }
+ counter redir4 { }
+ counter redir6 { }
+ chain input {
+ type filter hook input priority 0; policy accept;
+
+ icmp type "redirect" ct state "related" counter name "redir4" accept
+ icmpv6 type "nd-redirect" ct state "related" counter name "redir6" accept
+
+ meta l4proto { icmp, icmpv6 } ct state established,untracked accept
+ meta l4proto { icmp, icmpv6 } ct state "related" counter name "related" accept
+
+ counter name "unknown" drop
+ }
+}
+EOF
+
+ip netns exec nsclient2 nft -f - <<EOF
+table inet filter {
+ counter unknown { }
+ counter new { }
+ counter established { }
+
+ chain input {
+ type filter hook input priority 0; policy accept;
+ meta l4proto { icmp, icmpv6 } ct state established,untracked accept
+
+ meta l4proto { icmp, icmpv6 } ct state "new" counter name "new" accept
+ meta l4proto { icmp, icmpv6 } ct state "established" counter name "established" accept
+ counter name "unknown" drop
+ }
+ chain output {
+ type filter hook output priority 0; policy accept;
+ meta l4proto { icmp, icmpv6 } ct state established,untracked accept
+
+ meta l4proto { icmp, icmpv6 } ct state "new" counter name "new"
+ meta l4proto { icmp, icmpv6 } ct state "established" counter name "established"
+ counter name "unknown" drop
+ }
+}
+EOF
+
+
+# make sure NAT core rewrites adress of icmp error if nat is used according to
+# conntrack nat information (icmp error will be directed at nsrouter1 address,
+# but it needs to be routed to nsclient1 address).
+ip netns exec nsrouter1 nft -f - <<EOF
+table ip nat {
+ chain postrouting {
+ type nat hook postrouting priority 0; policy accept;
+ ip protocol icmp oifname "veth0" counter masquerade
+ }
+}
+table ip6 nat {
+ chain postrouting {
+ type nat hook postrouting priority 0; policy accept;
+ ip6 nexthdr icmpv6 oifname "veth0" counter masquerade
+ }
+}
+EOF
+
+ip netns exec nsrouter2 ip link set eth1 mtu 1280
+ip netns exec nsclient2 ip link set veth0 mtu 1280
+sleep 1
+
+ip netns exec nsclient1 ping -c 1 -s 1000 -q -M do 192.168.2.2 >/dev/null
+if [ $? -ne 0 ]; then
+ echo "ERROR: netns ip routing/connectivity broken" 1>&2
+ cleanup
+ exit 1
+fi
+ip netns exec nsclient1 ping6 -q -c 1 -s 1000 dead:2::2 >/dev/null
+if [ $? -ne 0 ]; then
+ echo "ERROR: netns ipv6 routing/connectivity broken" 1>&2
+ cleanup
+ exit 1
+fi
+
+check_unknown
+if [ $? -ne 0 ]; then
+ ret=1
+fi
+
+expect="packets 0 bytes 0"
+for netns in nsrouter1 nsrouter2 nsclient1;do
+ check_counter "$netns" "related" "$expect"
+ if [ $? -ne 0 ]; then
+ ret=1
+ fi
+done
+
+expect="packets 2 bytes 2076"
+check_counter nsclient2 "new" "$expect"
+if [ $? -ne 0 ]; then
+ ret=1
+fi
+
+ip netns exec nsclient1 ping -q -c 1 -s 1300 -M do 192.168.2.2 > /dev/null
+if [ $? -eq 0 ]; then
+ echo "ERROR: ping should have failed with PMTU too big error" 1>&2
+ ret=1
+fi
+
+# nsrouter2 should have generated the icmp error, so
+# related counter should be 0 (its in forward).
+expect="packets 0 bytes 0"
+check_counter "nsrouter2" "related" "$expect"
+if [ $? -ne 0 ]; then
+ ret=1
+fi
+
+# but nsrouter1 should have seen it, same for nsclient1.
+expect="packets 1 bytes 576"
+for netns in nsrouter1 nsclient1;do
+ check_counter "$netns" "related" "$expect"
+ if [ $? -ne 0 ]; then
+ ret=1
+ fi
+done
+
+ip netns exec nsclient1 ping6 -c 1 -s 1300 dead:2::2 > /dev/null
+if [ $? -eq 0 ]; then
+ echo "ERROR: ping6 should have failed with PMTU too big error" 1>&2
+ ret=1
+fi
+
+expect="packets 2 bytes 1856"
+for netns in nsrouter1 nsclient1;do
+ check_counter "$netns" "related" "$expect"
+ if [ $? -ne 0 ]; then
+ ret=1
+ fi
+done
+
+if [ $ret -eq 0 ];then
+ echo "PASS: icmp mtu error had RELATED state"
+else
+ echo "ERROR: icmp error RELATED state test has failed"
+fi
+
+# add 'bad' route, expect icmp REDIRECT to be generated
+ip netns exec nsclient1 ip route add 192.168.1.42 via 192.168.1.1
+ip netns exec nsclient1 ip route add dead:1::42 via dead:1::1
+
+ip netns exec "nsclient1" ping -q -c 2 192.168.1.42 > /dev/null
+
+expect="packets 1 bytes 112"
+check_counter nsclient1 "redir4" "$expect"
+if [ $? -ne 0 ];then
+ ret=1
+fi
+
+ip netns exec "nsclient1" ping -c 1 dead:1::42 > /dev/null
+expect="packets 1 bytes 192"
+check_counter nsclient1 "redir6" "$expect"
+if [ $? -ne 0 ];then
+ ret=1
+fi
+
+if [ $ret -eq 0 ];then
+ echo "PASS: icmp redirects had RELATED state"
+else
+ echo "ERROR: icmp redirect RELATED state test has failed"
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/netfilter/conntrack_vrf.sh b/tools/testing/selftests/netfilter/conntrack_vrf.sh
new file mode 100755
index 000000000..8b5ea9234
--- /dev/null
+++ b/tools/testing/selftests/netfilter/conntrack_vrf.sh
@@ -0,0 +1,241 @@
+#!/bin/sh
+
+# This script demonstrates interaction of conntrack and vrf.
+# The vrf driver calls the netfilter hooks again, with oif/iif
+# pointing at the VRF device.
+#
+# For ingress, this means first iteration has iifname of lower/real
+# device. In this script, thats veth0.
+# Second iteration is iifname set to vrf device, tvrf in this script.
+#
+# For egress, this is reversed: first iteration has the vrf device,
+# second iteration is done with the lower/real/veth0 device.
+#
+# test_ct_zone_in demonstrates unexpected change of nftables
+# behavior # caused by commit 09e856d54bda5f28 "vrf: Reset skb conntrack
+# connection on VRF rcv"
+#
+# It was possible to assign conntrack zone to a packet (or mark it for
+# `notracking`) in the prerouting chain before conntrack, based on real iif.
+#
+# After the change, the zone assignment is lost and the zone is assigned based
+# on the VRF master interface (in case such a rule exists).
+# assignment is lost. Instead, assignment based on the `iif` matching
+# Thus it is impossible to distinguish packets based on the original
+# interface.
+#
+# test_masquerade_vrf and test_masquerade_veth0 demonstrate the problem
+# that was supposed to be fixed by the commit mentioned above to make sure
+# that any fix to test case 1 won't break masquerade again.
+
+ksft_skip=4
+
+IP0=172.30.30.1
+IP1=172.30.30.2
+PFXL=30
+ret=0
+
+sfx=$(mktemp -u "XXXXXXXX")
+ns0="ns0-$sfx"
+ns1="ns1-$sfx"
+
+cleanup()
+{
+ ip netns pids $ns0 | xargs kill 2>/dev/null
+ ip netns pids $ns1 | xargs kill 2>/dev/null
+
+ ip netns del $ns0 $ns1
+}
+
+nft --version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without nft tool"
+ exit $ksft_skip
+fi
+
+ip -Version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+
+ip netns add "$ns0"
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not create net namespace $ns0"
+ exit $ksft_skip
+fi
+ip netns add "$ns1"
+
+trap cleanup EXIT
+
+ip netns exec $ns0 sysctl -q -w net.ipv4.conf.default.rp_filter=0
+ip netns exec $ns0 sysctl -q -w net.ipv4.conf.all.rp_filter=0
+ip netns exec $ns0 sysctl -q -w net.ipv4.conf.all.rp_filter=0
+
+ip link add veth0 netns "$ns0" type veth peer name veth0 netns "$ns1" > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not add veth device"
+ exit $ksft_skip
+fi
+
+ip -net $ns0 li add tvrf type vrf table 9876
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not add vrf device"
+ exit $ksft_skip
+fi
+
+ip -net $ns0 li set lo up
+
+ip -net $ns0 li set veth0 master tvrf
+ip -net $ns0 li set tvrf up
+ip -net $ns0 li set veth0 up
+ip -net $ns1 li set veth0 up
+
+ip -net $ns0 addr add $IP0/$PFXL dev veth0
+ip -net $ns1 addr add $IP1/$PFXL dev veth0
+
+ip netns exec $ns1 iperf3 -s > /dev/null 2>&1&
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not start iperf3"
+ exit $ksft_skip
+fi
+
+# test vrf ingress handling.
+# The incoming connection should be placed in conntrack zone 1,
+# as decided by the first iteration of the ruleset.
+test_ct_zone_in()
+{
+ip netns exec $ns0 nft -f - <<EOF
+table testct {
+ chain rawpre {
+ type filter hook prerouting priority raw;
+
+ iif { veth0, tvrf } counter meta nftrace set 1
+ iif veth0 counter ct zone set 1 counter return
+ iif tvrf counter ct zone set 2 counter return
+ ip protocol icmp counter
+ notrack counter
+ }
+
+ chain rawout {
+ type filter hook output priority raw;
+
+ oif veth0 counter ct zone set 1 counter return
+ oif tvrf counter ct zone set 2 counter return
+ notrack counter
+ }
+}
+EOF
+ ip netns exec $ns1 ping -W 1 -c 1 -I veth0 $IP0 > /dev/null
+
+ # should be in zone 1, not zone 2
+ count=$(ip netns exec $ns0 conntrack -L -s $IP1 -d $IP0 -p icmp --zone 1 2>/dev/null | wc -l)
+ if [ $count -eq 1 ]; then
+ echo "PASS: entry found in conntrack zone 1"
+ else
+ echo "FAIL: entry not found in conntrack zone 1"
+ count=$(ip netns exec $ns0 conntrack -L -s $IP1 -d $IP0 -p icmp --zone 2 2> /dev/null | wc -l)
+ if [ $count -eq 1 ]; then
+ echo "FAIL: entry found in zone 2 instead"
+ else
+ echo "FAIL: entry not in zone 1 or 2, dumping table"
+ ip netns exec $ns0 conntrack -L
+ ip netns exec $ns0 nft list ruleset
+ fi
+ fi
+}
+
+# add masq rule that gets evaluated w. outif set to vrf device.
+# This tests the first iteration of the packet through conntrack,
+# oifname is the vrf device.
+test_masquerade_vrf()
+{
+ local qdisc=$1
+
+ if [ "$qdisc" != "default" ]; then
+ tc -net $ns0 qdisc add dev tvrf root $qdisc
+ fi
+
+ ip netns exec $ns0 conntrack -F 2>/dev/null
+
+ip netns exec $ns0 nft -f - <<EOF
+flush ruleset
+table ip nat {
+ chain rawout {
+ type filter hook output priority raw;
+
+ oif tvrf ct state untracked counter
+ }
+ chain postrouting2 {
+ type filter hook postrouting priority mangle;
+
+ oif tvrf ct state untracked counter
+ }
+ chain postrouting {
+ type nat hook postrouting priority 0;
+ # NB: masquerade should always be combined with 'oif(name) bla',
+ # lack of this is intentional here, we want to exercise double-snat.
+ ip saddr 172.30.30.0/30 counter masquerade random
+ }
+}
+EOF
+ ip netns exec $ns0 ip vrf exec tvrf iperf3 -t 1 -c $IP1 >/dev/null
+ if [ $? -ne 0 ]; then
+ echo "FAIL: iperf3 connect failure with masquerade + sport rewrite on vrf device"
+ ret=1
+ return
+ fi
+
+ # must also check that nat table was evaluated on second (lower device) iteration.
+ ip netns exec $ns0 nft list table ip nat |grep -q 'counter packets 2' &&
+ ip netns exec $ns0 nft list table ip nat |grep -q 'untracked counter packets [1-9]'
+ if [ $? -eq 0 ]; then
+ echo "PASS: iperf3 connect with masquerade + sport rewrite on vrf device ($qdisc qdisc)"
+ else
+ echo "FAIL: vrf rules have unexpected counter value"
+ ret=1
+ fi
+
+ if [ "$qdisc" != "default" ]; then
+ tc -net $ns0 qdisc del dev tvrf root
+ fi
+}
+
+# add masq rule that gets evaluated w. outif set to veth device.
+# This tests the 2nd iteration of the packet through conntrack,
+# oifname is the lower device (veth0 in this case).
+test_masquerade_veth()
+{
+ ip netns exec $ns0 conntrack -F 2>/dev/null
+ip netns exec $ns0 nft -f - <<EOF
+flush ruleset
+table ip nat {
+ chain postrouting {
+ type nat hook postrouting priority 0;
+ meta oif veth0 ip saddr 172.30.30.0/30 counter masquerade random
+ }
+}
+EOF
+ ip netns exec $ns0 ip vrf exec tvrf iperf3 -t 1 -c $IP1 > /dev/null
+ if [ $? -ne 0 ]; then
+ echo "FAIL: iperf3 connect failure with masquerade + sport rewrite on veth device"
+ ret=1
+ return
+ fi
+
+ # must also check that nat table was evaluated on second (lower device) iteration.
+ ip netns exec $ns0 nft list table ip nat |grep -q 'counter packets 2'
+ if [ $? -eq 0 ]; then
+ echo "PASS: iperf3 connect with masquerade + sport rewrite on veth device"
+ else
+ echo "FAIL: vrf masq rule has unexpected counter value"
+ ret=1
+ fi
+}
+
+test_ct_zone_in
+test_masquerade_vrf "default"
+test_masquerade_vrf "pfifo"
+test_masquerade_veth
+
+exit $ret
diff --git a/tools/testing/selftests/netfilter/ipvs.sh b/tools/testing/selftests/netfilter/ipvs.sh
new file mode 100755
index 000000000..c3b8f90c4
--- /dev/null
+++ b/tools/testing/selftests/netfilter/ipvs.sh
@@ -0,0 +1,228 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# End-to-end ipvs test suite
+# Topology:
+#--------------------------------------------------------------+
+# | |
+# ns0 | ns1 |
+# ----------- | ----------- ----------- |
+# | veth01 | --------- | veth10 | | veth12 | |
+# ----------- peer ----------- ----------- |
+# | | | |
+# ----------- | | |
+# | br0 | |----------------- peer |--------------|
+# ----------- | | |
+# | | | |
+# ---------- peer ---------- ----------- |
+# | veth02 | --------- | veth20 | | veth21 | |
+# ---------- | ---------- ----------- |
+# | ns2 |
+# | |
+#--------------------------------------------------------------+
+#
+# We assume that all network driver are loaded
+#
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+ret=0
+GREEN='\033[0;92m'
+RED='\033[0;31m'
+NC='\033[0m' # No Color
+
+readonly port=8080
+
+readonly vip_v4=207.175.44.110
+readonly cip_v4=10.0.0.2
+readonly gip_v4=10.0.0.1
+readonly dip_v4=172.16.0.1
+readonly rip_v4=172.16.0.2
+readonly sip_v4=10.0.0.3
+
+readonly infile="$(mktemp)"
+readonly outfile="$(mktemp)"
+readonly datalen=32
+
+sysipvsnet="/proc/sys/net/ipv4/vs/"
+if [ ! -d $sysipvsnet ]; then
+ modprobe -q ip_vs
+ if [ $? -ne 0 ]; then
+ echo "skip: could not run test without ipvs module"
+ exit $ksft_skip
+ fi
+fi
+
+ip -Version > /dev/null 2>&1
+if [ $? -ne 0 ]; then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+
+ipvsadm -v > /dev/null 2>&1
+if [ $? -ne 0 ]; then
+ echo "SKIP: Could not run test without ipvsadm"
+ exit $ksft_skip
+fi
+
+setup() {
+ ip netns add ns0
+ ip netns add ns1
+ ip netns add ns2
+
+ ip link add veth01 netns ns0 type veth peer name veth10 netns ns1
+ ip link add veth02 netns ns0 type veth peer name veth20 netns ns2
+ ip link add veth12 netns ns1 type veth peer name veth21 netns ns2
+
+ ip netns exec ns0 ip link set veth01 up
+ ip netns exec ns0 ip link set veth02 up
+ ip netns exec ns0 ip link add br0 type bridge
+ ip netns exec ns0 ip link set veth01 master br0
+ ip netns exec ns0 ip link set veth02 master br0
+ ip netns exec ns0 ip link set br0 up
+ ip netns exec ns0 ip addr add ${cip_v4}/24 dev br0
+
+ ip netns exec ns1 ip link set lo up
+ ip netns exec ns1 ip link set veth10 up
+ ip netns exec ns1 ip addr add ${gip_v4}/24 dev veth10
+ ip netns exec ns1 ip link set veth12 up
+ ip netns exec ns1 ip addr add ${dip_v4}/24 dev veth12
+
+ ip netns exec ns2 ip link set lo up
+ ip netns exec ns2 ip link set veth21 up
+ ip netns exec ns2 ip addr add ${rip_v4}/24 dev veth21
+ ip netns exec ns2 ip link set veth20 up
+ ip netns exec ns2 ip addr add ${sip_v4}/24 dev veth20
+
+ sleep 1
+
+ dd if=/dev/urandom of="${infile}" bs="${datalen}" count=1 status=none
+}
+
+cleanup() {
+ for i in 0 1 2
+ do
+ ip netns del ns$i > /dev/null 2>&1
+ done
+
+ if [ -f "${outfile}" ]; then
+ rm "${outfile}"
+ fi
+ if [ -f "${infile}" ]; then
+ rm "${infile}"
+ fi
+}
+
+server_listen() {
+ ip netns exec ns2 nc -l -p 8080 > "${outfile}" &
+ server_pid=$!
+ sleep 0.2
+}
+
+client_connect() {
+ ip netns exec ns0 timeout 2 nc -w 1 ${vip_v4} ${port} < "${infile}"
+}
+
+verify_data() {
+ wait "${server_pid}"
+ cmp "$infile" "$outfile" 2>/dev/null
+}
+
+test_service() {
+ server_listen
+ client_connect
+ verify_data
+}
+
+
+test_dr() {
+ ip netns exec ns0 ip route add ${vip_v4} via ${gip_v4} dev br0
+
+ ip netns exec ns1 sysctl -qw net.ipv4.ip_forward=1
+ ip netns exec ns1 ipvsadm -A -t ${vip_v4}:${port} -s rr
+ ip netns exec ns1 ipvsadm -a -t ${vip_v4}:${port} -r ${rip_v4}:${port}
+ ip netns exec ns1 ip addr add ${vip_v4}/32 dev lo:1
+
+ # avoid incorrect arp response
+ ip netns exec ns2 sysctl -qw net.ipv4.conf.all.arp_ignore=1
+ ip netns exec ns2 sysctl -qw net.ipv4.conf.all.arp_announce=2
+ # avoid reverse route lookup
+ ip netns exec ns2 sysctl -qw net.ipv4.conf.all.rp_filter=0
+ ip netns exec ns2 sysctl -qw net.ipv4.conf.veth21.rp_filter=0
+ ip netns exec ns2 ip addr add ${vip_v4}/32 dev lo:1
+
+ test_service
+}
+
+test_nat() {
+ ip netns exec ns0 ip route add ${vip_v4} via ${gip_v4} dev br0
+
+ ip netns exec ns1 sysctl -qw net.ipv4.ip_forward=1
+ ip netns exec ns1 ipvsadm -A -t ${vip_v4}:${port} -s rr
+ ip netns exec ns1 ipvsadm -a -m -t ${vip_v4}:${port} -r ${rip_v4}:${port}
+ ip netns exec ns1 ip addr add ${vip_v4}/32 dev lo:1
+
+ ip netns exec ns2 ip link del veth20
+ ip netns exec ns2 ip route add default via ${dip_v4} dev veth21
+
+ test_service
+}
+
+test_tun() {
+ ip netns exec ns0 ip route add ${vip_v4} via ${gip_v4} dev br0
+
+ ip netns exec ns1 modprobe ipip
+ ip netns exec ns1 ip link set tunl0 up
+ ip netns exec ns1 sysctl -qw net.ipv4.ip_forward=0
+ ip netns exec ns1 sysctl -qw net.ipv4.conf.all.send_redirects=0
+ ip netns exec ns1 sysctl -qw net.ipv4.conf.default.send_redirects=0
+ ip netns exec ns1 ipvsadm -A -t ${vip_v4}:${port} -s rr
+ ip netns exec ns1 ipvsadm -a -i -t ${vip_v4}:${port} -r ${rip_v4}:${port}
+ ip netns exec ns1 ip addr add ${vip_v4}/32 dev lo:1
+
+ ip netns exec ns2 modprobe ipip
+ ip netns exec ns2 ip link set tunl0 up
+ ip netns exec ns2 sysctl -qw net.ipv4.conf.all.arp_ignore=1
+ ip netns exec ns2 sysctl -qw net.ipv4.conf.all.arp_announce=2
+ ip netns exec ns2 sysctl -qw net.ipv4.conf.all.rp_filter=0
+ ip netns exec ns2 sysctl -qw net.ipv4.conf.tunl0.rp_filter=0
+ ip netns exec ns2 sysctl -qw net.ipv4.conf.veth21.rp_filter=0
+ ip netns exec ns2 ip addr add ${vip_v4}/32 dev lo:1
+
+ test_service
+}
+
+run_tests() {
+ local errors=
+
+ echo "Testing DR mode..."
+ cleanup
+ setup
+ test_dr
+ errors=$(( $errors + $? ))
+
+ echo "Testing NAT mode..."
+ cleanup
+ setup
+ test_nat
+ errors=$(( $errors + $? ))
+
+ echo "Testing Tunnel mode..."
+ cleanup
+ setup
+ test_tun
+ errors=$(( $errors + $? ))
+
+ return $errors
+}
+
+trap cleanup EXIT
+
+run_tests
+
+if [ $? -ne 0 ]; then
+ echo -e "$(basename $0): ${RED}FAIL${NC}"
+ exit 1
+fi
+echo -e "$(basename $0): ${GREEN}PASS${NC}"
+exit 0
diff --git a/tools/testing/selftests/netfilter/nf-queue.c b/tools/testing/selftests/netfilter/nf-queue.c
new file mode 100644
index 000000000..9e56b9d47
--- /dev/null
+++ b/tools/testing/selftests/netfilter/nf-queue.c
@@ -0,0 +1,395 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <time.h>
+#include <arpa/inet.h>
+
+#include <libmnl/libmnl.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netfilter/nfnetlink_queue.h>
+
+struct options {
+ bool count_packets;
+ bool gso_enabled;
+ int verbose;
+ unsigned int queue_num;
+ unsigned int timeout;
+ uint32_t verdict;
+ uint32_t delay_ms;
+};
+
+static unsigned int queue_stats[5];
+static struct options opts;
+
+static void help(const char *p)
+{
+ printf("Usage: %s [-c|-v [-vv] ] [-t timeout] [-q queue_num] [-Qdst_queue ] [ -d ms_delay ] [-G]\n", p);
+}
+
+static int parse_attr_cb(const struct nlattr *attr, void *data)
+{
+ const struct nlattr **tb = data;
+ int type = mnl_attr_get_type(attr);
+
+ /* skip unsupported attribute in user-space */
+ if (mnl_attr_type_valid(attr, NFQA_MAX) < 0)
+ return MNL_CB_OK;
+
+ switch (type) {
+ case NFQA_MARK:
+ case NFQA_IFINDEX_INDEV:
+ case NFQA_IFINDEX_OUTDEV:
+ case NFQA_IFINDEX_PHYSINDEV:
+ case NFQA_IFINDEX_PHYSOUTDEV:
+ if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0) {
+ perror("mnl_attr_validate");
+ return MNL_CB_ERROR;
+ }
+ break;
+ case NFQA_TIMESTAMP:
+ if (mnl_attr_validate2(attr, MNL_TYPE_UNSPEC,
+ sizeof(struct nfqnl_msg_packet_timestamp)) < 0) {
+ perror("mnl_attr_validate2");
+ return MNL_CB_ERROR;
+ }
+ break;
+ case NFQA_HWADDR:
+ if (mnl_attr_validate2(attr, MNL_TYPE_UNSPEC,
+ sizeof(struct nfqnl_msg_packet_hw)) < 0) {
+ perror("mnl_attr_validate2");
+ return MNL_CB_ERROR;
+ }
+ break;
+ case NFQA_PAYLOAD:
+ break;
+ }
+ tb[type] = attr;
+ return MNL_CB_OK;
+}
+
+static int queue_cb(const struct nlmsghdr *nlh, void *data)
+{
+ struct nlattr *tb[NFQA_MAX+1] = { 0 };
+ struct nfqnl_msg_packet_hdr *ph = NULL;
+ uint32_t id = 0;
+
+ (void)data;
+
+ mnl_attr_parse(nlh, sizeof(struct nfgenmsg), parse_attr_cb, tb);
+ if (tb[NFQA_PACKET_HDR]) {
+ ph = mnl_attr_get_payload(tb[NFQA_PACKET_HDR]);
+ id = ntohl(ph->packet_id);
+
+ if (opts.verbose > 0)
+ printf("packet hook=%u, hwproto 0x%x",
+ ntohs(ph->hw_protocol), ph->hook);
+
+ if (ph->hook >= 5) {
+ fprintf(stderr, "Unknown hook %d\n", ph->hook);
+ return MNL_CB_ERROR;
+ }
+
+ if (opts.verbose > 0) {
+ uint32_t skbinfo = 0;
+
+ if (tb[NFQA_SKB_INFO])
+ skbinfo = ntohl(mnl_attr_get_u32(tb[NFQA_SKB_INFO]));
+ if (skbinfo & NFQA_SKB_CSUMNOTREADY)
+ printf(" csumnotready");
+ if (skbinfo & NFQA_SKB_GSO)
+ printf(" gso");
+ if (skbinfo & NFQA_SKB_CSUM_NOTVERIFIED)
+ printf(" csumnotverified");
+ puts("");
+ }
+
+ if (opts.count_packets)
+ queue_stats[ph->hook]++;
+ }
+
+ return MNL_CB_OK + id;
+}
+
+static struct nlmsghdr *
+nfq_build_cfg_request(char *buf, uint8_t command, int queue_num)
+{
+ struct nlmsghdr *nlh = mnl_nlmsg_put_header(buf);
+ struct nfqnl_msg_config_cmd cmd = {
+ .command = command,
+ .pf = htons(AF_INET),
+ };
+ struct nfgenmsg *nfg;
+
+ nlh->nlmsg_type = (NFNL_SUBSYS_QUEUE << 8) | NFQNL_MSG_CONFIG;
+ nlh->nlmsg_flags = NLM_F_REQUEST;
+
+ nfg = mnl_nlmsg_put_extra_header(nlh, sizeof(*nfg));
+
+ nfg->nfgen_family = AF_UNSPEC;
+ nfg->version = NFNETLINK_V0;
+ nfg->res_id = htons(queue_num);
+
+ mnl_attr_put(nlh, NFQA_CFG_CMD, sizeof(cmd), &cmd);
+
+ return nlh;
+}
+
+static struct nlmsghdr *
+nfq_build_cfg_params(char *buf, uint8_t mode, int range, int queue_num)
+{
+ struct nlmsghdr *nlh = mnl_nlmsg_put_header(buf);
+ struct nfqnl_msg_config_params params = {
+ .copy_range = htonl(range),
+ .copy_mode = mode,
+ };
+ struct nfgenmsg *nfg;
+
+ nlh->nlmsg_type = (NFNL_SUBSYS_QUEUE << 8) | NFQNL_MSG_CONFIG;
+ nlh->nlmsg_flags = NLM_F_REQUEST;
+
+ nfg = mnl_nlmsg_put_extra_header(nlh, sizeof(*nfg));
+ nfg->nfgen_family = AF_UNSPEC;
+ nfg->version = NFNETLINK_V0;
+ nfg->res_id = htons(queue_num);
+
+ mnl_attr_put(nlh, NFQA_CFG_PARAMS, sizeof(params), &params);
+
+ return nlh;
+}
+
+static struct nlmsghdr *
+nfq_build_verdict(char *buf, int id, int queue_num, uint32_t verd)
+{
+ struct nfqnl_msg_verdict_hdr vh = {
+ .verdict = htonl(verd),
+ .id = htonl(id),
+ };
+ struct nlmsghdr *nlh;
+ struct nfgenmsg *nfg;
+
+ nlh = mnl_nlmsg_put_header(buf);
+ nlh->nlmsg_type = (NFNL_SUBSYS_QUEUE << 8) | NFQNL_MSG_VERDICT;
+ nlh->nlmsg_flags = NLM_F_REQUEST;
+ nfg = mnl_nlmsg_put_extra_header(nlh, sizeof(*nfg));
+ nfg->nfgen_family = AF_UNSPEC;
+ nfg->version = NFNETLINK_V0;
+ nfg->res_id = htons(queue_num);
+
+ mnl_attr_put(nlh, NFQA_VERDICT_HDR, sizeof(vh), &vh);
+
+ return nlh;
+}
+
+static void print_stats(void)
+{
+ unsigned int last, total;
+ int i;
+
+ total = 0;
+ last = queue_stats[0];
+
+ for (i = 0; i < 5; i++) {
+ printf("hook %d packets %08u\n", i, queue_stats[i]);
+ last = queue_stats[i];
+ total += last;
+ }
+
+ printf("%u packets total\n", total);
+}
+
+struct mnl_socket *open_queue(void)
+{
+ char buf[MNL_SOCKET_BUFFER_SIZE];
+ unsigned int queue_num;
+ struct mnl_socket *nl;
+ struct nlmsghdr *nlh;
+ struct timeval tv;
+ uint32_t flags;
+
+ nl = mnl_socket_open(NETLINK_NETFILTER);
+ if (nl == NULL) {
+ perror("mnl_socket_open");
+ exit(EXIT_FAILURE);
+ }
+
+ if (mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) {
+ perror("mnl_socket_bind");
+ exit(EXIT_FAILURE);
+ }
+
+ queue_num = opts.queue_num;
+ nlh = nfq_build_cfg_request(buf, NFQNL_CFG_CMD_BIND, queue_num);
+
+ if (mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) {
+ perror("mnl_socket_sendto");
+ exit(EXIT_FAILURE);
+ }
+
+ nlh = nfq_build_cfg_params(buf, NFQNL_COPY_PACKET, 0xFFFF, queue_num);
+
+ flags = opts.gso_enabled ? NFQA_CFG_F_GSO : 0;
+ flags |= NFQA_CFG_F_UID_GID;
+ mnl_attr_put_u32(nlh, NFQA_CFG_FLAGS, htonl(flags));
+ mnl_attr_put_u32(nlh, NFQA_CFG_MASK, htonl(flags));
+
+ if (mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) {
+ perror("mnl_socket_sendto");
+ exit(EXIT_FAILURE);
+ }
+
+ memset(&tv, 0, sizeof(tv));
+ tv.tv_sec = opts.timeout;
+ if (opts.timeout && setsockopt(mnl_socket_get_fd(nl),
+ SOL_SOCKET, SO_RCVTIMEO,
+ &tv, sizeof(tv))) {
+ perror("setsockopt(SO_RCVTIMEO)");
+ exit(EXIT_FAILURE);
+ }
+
+ return nl;
+}
+
+static void sleep_ms(uint32_t delay)
+{
+ struct timespec ts = { .tv_sec = delay / 1000 };
+
+ delay %= 1000;
+
+ ts.tv_nsec = delay * 1000llu * 1000llu;
+
+ nanosleep(&ts, NULL);
+}
+
+static int mainloop(void)
+{
+ unsigned int buflen = 64 * 1024 + MNL_SOCKET_BUFFER_SIZE;
+ struct mnl_socket *nl;
+ struct nlmsghdr *nlh;
+ unsigned int portid;
+ char *buf;
+ int ret;
+
+ buf = malloc(buflen);
+ if (!buf) {
+ perror("malloc");
+ exit(EXIT_FAILURE);
+ }
+
+ nl = open_queue();
+ portid = mnl_socket_get_portid(nl);
+
+ for (;;) {
+ uint32_t id;
+
+ ret = mnl_socket_recvfrom(nl, buf, buflen);
+ if (ret == -1) {
+ if (errno == ENOBUFS || errno == EINTR)
+ continue;
+
+ if (errno == EAGAIN) {
+ errno = 0;
+ ret = 0;
+ break;
+ }
+
+ perror("mnl_socket_recvfrom");
+ exit(EXIT_FAILURE);
+ }
+
+ ret = mnl_cb_run(buf, ret, 0, portid, queue_cb, NULL);
+ if (ret < 0) {
+ perror("mnl_cb_run");
+ exit(EXIT_FAILURE);
+ }
+
+ id = ret - MNL_CB_OK;
+ if (opts.delay_ms)
+ sleep_ms(opts.delay_ms);
+
+ nlh = nfq_build_verdict(buf, id, opts.queue_num, opts.verdict);
+ if (mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) {
+ perror("mnl_socket_sendto");
+ exit(EXIT_FAILURE);
+ }
+ }
+
+ mnl_socket_close(nl);
+
+ return ret;
+}
+
+static void parse_opts(int argc, char **argv)
+{
+ int c;
+
+ while ((c = getopt(argc, argv, "chvt:q:Q:d:G")) != -1) {
+ switch (c) {
+ case 'c':
+ opts.count_packets = true;
+ break;
+ case 'h':
+ help(argv[0]);
+ exit(0);
+ break;
+ case 'q':
+ opts.queue_num = atoi(optarg);
+ if (opts.queue_num > 0xffff)
+ opts.queue_num = 0;
+ break;
+ case 'Q':
+ opts.verdict = atoi(optarg);
+ if (opts.verdict > 0xffff) {
+ fprintf(stderr, "Expected destination queue number\n");
+ exit(1);
+ }
+
+ opts.verdict <<= 16;
+ opts.verdict |= NF_QUEUE;
+ break;
+ case 'd':
+ opts.delay_ms = atoi(optarg);
+ if (opts.delay_ms == 0) {
+ fprintf(stderr, "Expected nonzero delay (in milliseconds)\n");
+ exit(1);
+ }
+ break;
+ case 't':
+ opts.timeout = atoi(optarg);
+ break;
+ case 'G':
+ opts.gso_enabled = false;
+ break;
+ case 'v':
+ opts.verbose++;
+ break;
+ }
+ }
+
+ if (opts.verdict != NF_ACCEPT && (opts.verdict >> 16 == opts.queue_num)) {
+ fprintf(stderr, "Cannot use same destination and source queue\n");
+ exit(1);
+ }
+}
+
+int main(int argc, char *argv[])
+{
+ int ret;
+
+ opts.verdict = NF_ACCEPT;
+ opts.gso_enabled = true;
+
+ parse_opts(argc, argv);
+
+ ret = mainloop();
+ if (opts.count_packets)
+ print_stats();
+
+ return ret;
+}
diff --git a/tools/testing/selftests/netfilter/nft_concat_range.sh b/tools/testing/selftests/netfilter/nft_concat_range.sh
new file mode 100755
index 000000000..af3461cb5
--- /dev/null
+++ b/tools/testing/selftests/netfilter/nft_concat_range.sh
@@ -0,0 +1,1586 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# nft_concat_range.sh - Tests for sets with concatenation of ranged fields
+#
+# Copyright (c) 2019 Red Hat GmbH
+#
+# Author: Stefano Brivio <sbrivio@redhat.com>
+#
+# shellcheck disable=SC2154,SC2034,SC2016,SC2030,SC2031
+# ^ Configuration and templates sourced with eval, counters reused in subshells
+
+KSELFTEST_SKIP=4
+
+# Available test groups:
+# - reported_issues: check for issues that were reported in the past
+# - correctness: check that packets match given entries, and only those
+# - concurrency: attempt races between insertion, deletion and lookup
+# - timeout: check that packets match entries until they expire
+# - performance: estimate matching rate, compare with rbtree and hash baselines
+TESTS="reported_issues correctness concurrency timeout"
+[ "${quicktest}" != "1" ] && TESTS="${TESTS} performance"
+
+# Set types, defined by TYPE_ variables below
+TYPES="net_port port_net net6_port port_proto net6_port_mac net6_port_mac_proto
+ net_port_net net_mac net_mac_icmp net6_mac_icmp net6_port_net6_port
+ net_port_mac_proto_net"
+
+# Reported bugs, also described by TYPE_ variables below
+BUGS="flush_remove_add reload"
+
+# List of possible paths to pktgen script from kernel tree for performance tests
+PKTGEN_SCRIPT_PATHS="
+ ../../../../samples/pktgen/pktgen_bench_xmit_mode_netif_receive.sh
+ pktgen/pktgen_bench_xmit_mode_netif_receive.sh"
+
+# Definition of set types:
+# display display text for test report
+# type_spec nftables set type specifier
+# chain_spec nftables type specifier for rules mapping to set
+# dst call sequence of format_*() functions for destination fields
+# src call sequence of format_*() functions for source fields
+# start initial integer used to generate addresses and ports
+# count count of entries to generate and match
+# src_delta number summed to destination generator for source fields
+# tools list of tools for correctness and timeout tests, any can be used
+# proto L4 protocol of test packets
+#
+# race_repeat race attempts per thread, 0 disables concurrency test for type
+# flood_tools list of tools for concurrency tests, any can be used
+# flood_proto L4 protocol of test packets for concurrency tests
+# flood_spec nftables type specifier for concurrency tests
+#
+# perf_duration duration of single pktgen injection test
+# perf_spec nftables type specifier for performance tests
+# perf_dst format_*() functions for destination fields in performance test
+# perf_src format_*() functions for source fields in performance test
+# perf_entries number of set entries for performance test
+# perf_proto L3 protocol of test packets
+TYPE_net_port="
+display net,port
+type_spec ipv4_addr . inet_service
+chain_spec ip daddr . udp dport
+dst addr4 port
+src
+start 1
+count 5
+src_delta 2000
+tools sendip nc bash
+proto udp
+
+race_repeat 3
+flood_tools iperf3 iperf netperf
+flood_proto udp
+flood_spec ip daddr . udp dport
+
+perf_duration 5
+perf_spec ip daddr . udp dport
+perf_dst addr4 port
+perf_src
+perf_entries 1000
+perf_proto ipv4
+"
+
+TYPE_port_net="
+display port,net
+type_spec inet_service . ipv4_addr
+chain_spec udp dport . ip daddr
+dst port addr4
+src
+start 1
+count 5
+src_delta 2000
+tools sendip nc bash
+proto udp
+
+race_repeat 3
+flood_tools iperf3 iperf netperf
+flood_proto udp
+flood_spec udp dport . ip daddr
+
+perf_duration 5
+perf_spec udp dport . ip daddr
+perf_dst port addr4
+perf_src
+perf_entries 100
+perf_proto ipv4
+"
+
+TYPE_net6_port="
+display net6,port
+type_spec ipv6_addr . inet_service
+chain_spec ip6 daddr . udp dport
+dst addr6 port
+src
+start 10
+count 5
+src_delta 2000
+tools sendip nc bash
+proto udp6
+
+race_repeat 3
+flood_tools iperf3 iperf netperf
+flood_proto tcp6
+flood_spec ip6 daddr . udp dport
+
+perf_duration 5
+perf_spec ip6 daddr . udp dport
+perf_dst addr6 port
+perf_src
+perf_entries 1000
+perf_proto ipv6
+"
+
+TYPE_port_proto="
+display port,proto
+type_spec inet_service . inet_proto
+chain_spec udp dport . meta l4proto
+dst port proto
+src
+start 1
+count 5
+src_delta 2000
+tools sendip nc bash
+proto udp
+
+race_repeat 0
+
+perf_duration 5
+perf_spec udp dport . meta l4proto
+perf_dst port proto
+perf_src
+perf_entries 30000
+perf_proto ipv4
+"
+
+TYPE_net6_port_mac="
+display net6,port,mac
+type_spec ipv6_addr . inet_service . ether_addr
+chain_spec ip6 daddr . udp dport . ether saddr
+dst addr6 port
+src mac
+start 10
+count 5
+src_delta 2000
+tools sendip nc bash
+proto udp6
+
+race_repeat 0
+
+perf_duration 5
+perf_spec ip6 daddr . udp dport . ether daddr
+perf_dst addr6 port mac
+perf_src
+perf_entries 10
+perf_proto ipv6
+"
+
+TYPE_net6_port_mac_proto="
+display net6,port,mac,proto
+type_spec ipv6_addr . inet_service . ether_addr . inet_proto
+chain_spec ip6 daddr . udp dport . ether saddr . meta l4proto
+dst addr6 port
+src mac proto
+start 10
+count 5
+src_delta 2000
+tools sendip nc bash
+proto udp6
+
+race_repeat 0
+
+perf_duration 5
+perf_spec ip6 daddr . udp dport . ether daddr . meta l4proto
+perf_dst addr6 port mac proto
+perf_src
+perf_entries 1000
+perf_proto ipv6
+"
+
+TYPE_net_port_net="
+display net,port,net
+type_spec ipv4_addr . inet_service . ipv4_addr
+chain_spec ip daddr . udp dport . ip saddr
+dst addr4 port
+src addr4
+start 1
+count 5
+src_delta 2000
+tools sendip nc bash
+proto udp
+
+race_repeat 3
+flood_tools iperf3 iperf netperf
+flood_proto tcp
+flood_spec ip daddr . udp dport . ip saddr
+
+perf_duration 0
+"
+
+TYPE_net6_port_net6_port="
+display net6,port,net6,port
+type_spec ipv6_addr . inet_service . ipv6_addr . inet_service
+chain_spec ip6 daddr . udp dport . ip6 saddr . udp sport
+dst addr6 port
+src addr6 port
+start 10
+count 5
+src_delta 2000
+tools sendip nc
+proto udp6
+
+race_repeat 3
+flood_tools iperf3 iperf netperf
+flood_proto tcp6
+flood_spec ip6 daddr . tcp dport . ip6 saddr . tcp sport
+
+perf_duration 0
+"
+
+TYPE_net_port_mac_proto_net="
+display net,port,mac,proto,net
+type_spec ipv4_addr . inet_service . ether_addr . inet_proto . ipv4_addr
+chain_spec ip daddr . udp dport . ether saddr . meta l4proto . ip saddr
+dst addr4 port
+src mac proto addr4
+start 1
+count 5
+src_delta 2000
+tools sendip nc bash
+proto udp
+
+race_repeat 0
+
+perf_duration 0
+"
+
+TYPE_net_mac="
+display net,mac
+type_spec ipv4_addr . ether_addr
+chain_spec ip daddr . ether saddr
+dst addr4
+src mac
+start 1
+count 5
+src_delta 2000
+tools sendip nc bash
+proto udp
+
+race_repeat 0
+
+perf_duration 5
+perf_spec ip daddr . ether daddr
+perf_dst addr4 mac
+perf_src
+perf_entries 1000
+perf_proto ipv4
+"
+
+TYPE_net_mac_icmp="
+display net,mac - ICMP
+type_spec ipv4_addr . ether_addr
+chain_spec ip daddr . ether saddr
+dst addr4
+src mac
+start 1
+count 5
+src_delta 2000
+tools ping
+proto icmp
+
+race_repeat 0
+
+perf_duration 0
+"
+
+TYPE_net6_mac_icmp="
+display net6,mac - ICMPv6
+type_spec ipv6_addr . ether_addr
+chain_spec ip6 daddr . ether saddr
+dst addr6
+src mac
+start 10
+count 50
+src_delta 2000
+tools ping
+proto icmp6
+
+race_repeat 0
+
+perf_duration 0
+"
+
+TYPE_net_port_proto_net="
+display net,port,proto,net
+type_spec ipv4_addr . inet_service . inet_proto . ipv4_addr
+chain_spec ip daddr . udp dport . meta l4proto . ip saddr
+dst addr4 port proto
+src addr4
+start 1
+count 5
+src_delta 2000
+tools sendip nc
+proto udp
+
+race_repeat 3
+flood_tools iperf3 iperf netperf
+flood_proto tcp
+flood_spec ip daddr . tcp dport . meta l4proto . ip saddr
+
+perf_duration 0
+"
+
+# Definition of tests for bugs reported in the past:
+# display display text for test report
+TYPE_flush_remove_add="
+display Add two elements, flush, re-add
+"
+
+TYPE_reload="
+display net,mac with reload
+type_spec ipv4_addr . ether_addr
+chain_spec ip daddr . ether saddr
+dst addr4
+src mac
+start 1
+count 1
+src_delta 2000
+tools sendip nc bash
+proto udp
+
+race_repeat 0
+
+perf_duration 0
+"
+
+# Set template for all tests, types and rules are filled in depending on test
+set_template='
+flush ruleset
+
+table inet filter {
+ counter test {
+ packets 0 bytes 0
+ }
+
+ set test {
+ type ${type_spec}
+ flags interval,timeout
+ }
+
+ chain input {
+ type filter hook prerouting priority 0; policy accept;
+ ${chain_spec} @test counter name \"test\"
+ }
+}
+
+table netdev perf {
+ counter test {
+ packets 0 bytes 0
+ }
+
+ counter match {
+ packets 0 bytes 0
+ }
+
+ set test {
+ type ${type_spec}
+ flags interval
+ }
+
+ set norange {
+ type ${type_spec}
+ }
+
+ set noconcat {
+ type ${type_spec%% *}
+ flags interval
+ }
+
+ chain test {
+ type filter hook ingress device veth_a priority 0;
+ }
+}
+'
+
+err_buf=
+info_buf=
+
+# Append string to error buffer
+err() {
+ err_buf="${err_buf}${1}
+"
+}
+
+# Append string to information buffer
+info() {
+ info_buf="${info_buf}${1}
+"
+}
+
+# Flush error buffer to stdout
+err_flush() {
+ printf "%s" "${err_buf}"
+ err_buf=
+}
+
+# Flush information buffer to stdout
+info_flush() {
+ printf "%s" "${info_buf}"
+ info_buf=
+}
+
+# Setup veth pair: this namespace receives traffic, B generates it
+setup_veth() {
+ ip netns add B
+ ip link add veth_a type veth peer name veth_b || return 1
+
+ ip link set veth_a up
+ ip link set veth_b netns B
+
+ ip -n B link set veth_b up
+
+ ip addr add dev veth_a 10.0.0.1
+ ip route add default dev veth_a
+
+ ip -6 addr add fe80::1/64 dev veth_a nodad
+ ip -6 addr add 2001:db8::1/64 dev veth_a nodad
+ ip -6 route add default dev veth_a
+
+ ip -n B route add default dev veth_b
+
+ ip -6 -n B addr add fe80::2/64 dev veth_b nodad
+ ip -6 -n B addr add 2001:db8::2/64 dev veth_b nodad
+ ip -6 -n B route add default dev veth_b
+
+ B() {
+ ip netns exec B "$@" >/dev/null 2>&1
+ }
+
+ sleep 2
+}
+
+# Fill in set template and initialise set
+setup_set() {
+ eval "echo \"${set_template}\"" | nft -f -
+}
+
+# Check that at least one of the needed tools is available
+check_tools() {
+ [ -z "${tools}" ] && return 0
+
+ __tools=
+ for tool in ${tools}; do
+ if [ "${tool}" = "nc" ] && [ "${proto}" = "udp6" ] && \
+ ! nc -u -w0 1.1.1.1 1 2>/dev/null; then
+ # Some GNU netcat builds might not support IPv6
+ __tools="${__tools} netcat-openbsd"
+ continue
+ fi
+ __tools="${__tools} ${tool}"
+
+ command -v "${tool}" >/dev/null && return 0
+ done
+ err "need one of:${__tools}, skipping" && return 1
+}
+
+# Set up function to send ICMP packets
+setup_send_icmp() {
+ send_icmp() {
+ B ping -c1 -W1 "${dst_addr4}" >/dev/null 2>&1
+ }
+}
+
+# Set up function to send ICMPv6 packets
+setup_send_icmp6() {
+ if command -v ping6 >/dev/null; then
+ send_icmp6() {
+ ip -6 addr add "${dst_addr6}" dev veth_a nodad \
+ 2>/dev/null
+ B ping6 -q -c1 -W1 "${dst_addr6}"
+ }
+ else
+ send_icmp6() {
+ ip -6 addr add "${dst_addr6}" dev veth_a nodad \
+ 2>/dev/null
+ B ping -q -6 -c1 -W1 "${dst_addr6}"
+ }
+ fi
+}
+
+# Set up function to send single UDP packets on IPv4
+setup_send_udp() {
+ if command -v sendip >/dev/null; then
+ send_udp() {
+ [ -n "${src_port}" ] && src_port="-us ${src_port}"
+ [ -n "${dst_port}" ] && dst_port="-ud ${dst_port}"
+ [ -n "${src_addr4}" ] && src_addr4="-is ${src_addr4}"
+
+ # shellcheck disable=SC2086 # sendip needs split options
+ B sendip -p ipv4 -p udp ${src_addr4} ${src_port} \
+ ${dst_port} "${dst_addr4}"
+
+ src_port=
+ dst_port=
+ src_addr4=
+ }
+ elif command -v nc >/dev/null; then
+ if nc -u -w0 1.1.1.1 1 2>/dev/null; then
+ # OpenBSD netcat
+ nc_opt="-w0"
+ else
+ # GNU netcat
+ nc_opt="-q0"
+ fi
+
+ send_udp() {
+ if [ -n "${src_addr4}" ]; then
+ B ip addr add "${src_addr4}" dev veth_b
+ __src_addr4="-s ${src_addr4}"
+ fi
+ ip addr add "${dst_addr4}" dev veth_a 2>/dev/null
+ [ -n "${src_port}" ] && src_port="-p ${src_port}"
+
+ echo "" | B nc -u "${nc_opt}" "${__src_addr4}" \
+ "${src_port}" "${dst_addr4}" "${dst_port}"
+
+ src_addr4=
+ src_port=
+ }
+ elif [ -z "$(bash -c 'type -p')" ]; then
+ send_udp() {
+ ip addr add "${dst_addr4}" dev veth_a 2>/dev/null
+ if [ -n "${src_addr4}" ]; then
+ B ip addr add "${src_addr4}/16" dev veth_b
+ B ip route add default dev veth_b
+ fi
+
+ B bash -c "echo > /dev/udp/${dst_addr4}/${dst_port}"
+
+ if [ -n "${src_addr4}" ]; then
+ B ip addr del "${src_addr4}/16" dev veth_b
+ fi
+ src_addr4=
+ }
+ else
+ return 1
+ fi
+}
+
+# Set up function to send single UDP packets on IPv6
+setup_send_udp6() {
+ if command -v sendip >/dev/null; then
+ send_udp6() {
+ [ -n "${src_port}" ] && src_port="-us ${src_port}"
+ [ -n "${dst_port}" ] && dst_port="-ud ${dst_port}"
+ if [ -n "${src_addr6}" ]; then
+ src_addr6="-6s ${src_addr6}"
+ else
+ src_addr6="-6s 2001:db8::2"
+ fi
+ ip -6 addr add "${dst_addr6}" dev veth_a nodad \
+ 2>/dev/null
+
+ # shellcheck disable=SC2086 # this needs split options
+ B sendip -p ipv6 -p udp ${src_addr6} ${src_port} \
+ ${dst_port} "${dst_addr6}"
+
+ src_port=
+ dst_port=
+ src_addr6=
+ }
+ elif command -v nc >/dev/null && nc -u -w0 1.1.1.1 1 2>/dev/null; then
+ # GNU netcat might not work with IPv6, try next tool
+ send_udp6() {
+ ip -6 addr add "${dst_addr6}" dev veth_a nodad \
+ 2>/dev/null
+ if [ -n "${src_addr6}" ]; then
+ B ip addr add "${src_addr6}" dev veth_b nodad
+ else
+ src_addr6="2001:db8::2"
+ fi
+ [ -n "${src_port}" ] && src_port="-p ${src_port}"
+
+ # shellcheck disable=SC2086 # this needs split options
+ echo "" | B nc -u w0 "-s${src_addr6}" ${src_port} \
+ ${dst_addr6} ${dst_port}
+
+ src_addr6=
+ src_port=
+ }
+ elif [ -z "$(bash -c 'type -p')" ]; then
+ send_udp6() {
+ ip -6 addr add "${dst_addr6}" dev veth_a nodad \
+ 2>/dev/null
+ B ip addr add "${src_addr6}" dev veth_b nodad
+ B bash -c "echo > /dev/udp/${dst_addr6}/${dst_port}"
+ ip -6 addr del "${dst_addr6}" dev veth_a 2>/dev/null
+ }
+ else
+ return 1
+ fi
+}
+
+# Set up function to send TCP traffic on IPv4
+setup_flood_tcp() {
+ if command -v iperf3 >/dev/null; then
+ flood_tcp() {
+ [ -n "${dst_port}" ] && dst_port="-p ${dst_port}"
+ if [ -n "${src_addr4}" ]; then
+ B ip addr add "${src_addr4}/16" dev veth_b
+ src_addr4="-B ${src_addr4}"
+ else
+ B ip addr add dev veth_b 10.0.0.2
+ src_addr4="-B 10.0.0.2"
+ fi
+ if [ -n "${src_port}" ]; then
+ src_port="--cport ${src_port}"
+ fi
+ B ip route add default dev veth_b 2>/dev/null
+ ip addr add "${dst_addr4}" dev veth_a 2>/dev/null
+
+ # shellcheck disable=SC2086 # this needs split options
+ iperf3 -s -DB "${dst_addr4}" ${dst_port} >/dev/null 2>&1
+ sleep 2
+
+ # shellcheck disable=SC2086 # this needs split options
+ B iperf3 -c "${dst_addr4}" ${dst_port} ${src_port} \
+ ${src_addr4} -l16 -t 1000
+
+ src_addr4=
+ src_port=
+ dst_port=
+ }
+ elif command -v iperf >/dev/null; then
+ flood_tcp() {
+ [ -n "${dst_port}" ] && dst_port="-p ${dst_port}"
+ if [ -n "${src_addr4}" ]; then
+ B ip addr add "${src_addr4}/16" dev veth_b
+ src_addr4="-B ${src_addr4}"
+ else
+ B ip addr add dev veth_b 10.0.0.2 2>/dev/null
+ src_addr4="-B 10.0.0.2"
+ fi
+ if [ -n "${src_port}" ]; then
+ src_addr4="${src_addr4}:${src_port}"
+ fi
+ B ip route add default dev veth_b
+ ip addr add "${dst_addr4}" dev veth_a 2>/dev/null
+
+ # shellcheck disable=SC2086 # this needs split options
+ iperf -s -DB "${dst_addr4}" ${dst_port} >/dev/null 2>&1
+ sleep 2
+
+ # shellcheck disable=SC2086 # this needs split options
+ B iperf -c "${dst_addr4}" ${dst_port} ${src_addr4} \
+ -l20 -t 1000
+
+ src_addr4=
+ src_port=
+ dst_port=
+ }
+ elif command -v netperf >/dev/null; then
+ flood_tcp() {
+ [ -n "${dst_port}" ] && dst_port="-p ${dst_port}"
+ if [ -n "${src_addr4}" ]; then
+ B ip addr add "${src_addr4}/16" dev veth_b
+ else
+ B ip addr add dev veth_b 10.0.0.2
+ src_addr4="10.0.0.2"
+ fi
+ if [ -n "${src_port}" ]; then
+ dst_port="${dst_port},${src_port}"
+ fi
+ B ip route add default dev veth_b
+ ip addr add "${dst_addr4}" dev veth_a 2>/dev/null
+
+ # shellcheck disable=SC2086 # this needs split options
+ netserver -4 ${dst_port} -L "${dst_addr4}" \
+ >/dev/null 2>&1
+ sleep 2
+
+ # shellcheck disable=SC2086 # this needs split options
+ B netperf -4 -H "${dst_addr4}" ${dst_port} \
+ -L "${src_addr4}" -l 1000 -t TCP_STREAM
+
+ src_addr4=
+ src_port=
+ dst_port=
+ }
+ else
+ return 1
+ fi
+}
+
+# Set up function to send TCP traffic on IPv6
+setup_flood_tcp6() {
+ if command -v iperf3 >/dev/null; then
+ flood_tcp6() {
+ [ -n "${dst_port}" ] && dst_port="-p ${dst_port}"
+ if [ -n "${src_addr6}" ]; then
+ B ip addr add "${src_addr6}" dev veth_b nodad
+ src_addr6="-B ${src_addr6}"
+ else
+ src_addr6="-B 2001:db8::2"
+ fi
+ if [ -n "${src_port}" ]; then
+ src_port="--cport ${src_port}"
+ fi
+ B ip route add default dev veth_b
+ ip -6 addr add "${dst_addr6}" dev veth_a nodad \
+ 2>/dev/null
+
+ # shellcheck disable=SC2086 # this needs split options
+ iperf3 -s -DB "${dst_addr6}" ${dst_port} >/dev/null 2>&1
+ sleep 2
+
+ # shellcheck disable=SC2086 # this needs split options
+ B iperf3 -c "${dst_addr6}" ${dst_port} \
+ ${src_port} ${src_addr6} -l16 -t 1000
+
+ src_addr6=
+ src_port=
+ dst_port=
+ }
+ elif command -v iperf >/dev/null; then
+ flood_tcp6() {
+ [ -n "${dst_port}" ] && dst_port="-p ${dst_port}"
+ if [ -n "${src_addr6}" ]; then
+ B ip addr add "${src_addr6}" dev veth_b nodad
+ src_addr6="-B ${src_addr6}"
+ else
+ src_addr6="-B 2001:db8::2"
+ fi
+ if [ -n "${src_port}" ]; then
+ src_addr6="${src_addr6}:${src_port}"
+ fi
+ B ip route add default dev veth_b
+ ip -6 addr add "${dst_addr6}" dev veth_a nodad \
+ 2>/dev/null
+
+ # shellcheck disable=SC2086 # this needs split options
+ iperf -s -VDB "${dst_addr6}" ${dst_port} >/dev/null 2>&1
+ sleep 2
+
+ # shellcheck disable=SC2086 # this needs split options
+ B iperf -c "${dst_addr6}" -V ${dst_port} \
+ ${src_addr6} -l1 -t 1000
+
+ src_addr6=
+ src_port=
+ dst_port=
+ }
+ elif command -v netperf >/dev/null; then
+ flood_tcp6() {
+ [ -n "${dst_port}" ] && dst_port="-p ${dst_port}"
+ if [ -n "${src_addr6}" ]; then
+ B ip addr add "${src_addr6}" dev veth_b nodad
+ else
+ src_addr6="2001:db8::2"
+ fi
+ if [ -n "${src_port}" ]; then
+ dst_port="${dst_port},${src_port}"
+ fi
+ B ip route add default dev veth_b
+ ip -6 addr add "${dst_addr6}" dev veth_a nodad \
+ 2>/dev/null
+
+ # shellcheck disable=SC2086 # this needs split options
+ netserver -6 ${dst_port} -L "${dst_addr6}" \
+ >/dev/null 2>&1
+ sleep 2
+
+ # shellcheck disable=SC2086 # this needs split options
+ B netperf -6 -H "${dst_addr6}" ${dst_port} \
+ -L "${src_addr6}" -l 1000 -t TCP_STREAM
+
+ src_addr6=
+ src_port=
+ dst_port=
+ }
+ else
+ return 1
+ fi
+}
+
+# Set up function to send UDP traffic on IPv4
+setup_flood_udp() {
+ if command -v iperf3 >/dev/null; then
+ flood_udp() {
+ [ -n "${dst_port}" ] && dst_port="-p ${dst_port}"
+ if [ -n "${src_addr4}" ]; then
+ B ip addr add "${src_addr4}/16" dev veth_b
+ src_addr4="-B ${src_addr4}"
+ else
+ B ip addr add dev veth_b 10.0.0.2 2>/dev/null
+ src_addr4="-B 10.0.0.2"
+ fi
+ if [ -n "${src_port}" ]; then
+ src_port="--cport ${src_port}"
+ fi
+ B ip route add default dev veth_b
+ ip addr add "${dst_addr4}" dev veth_a 2>/dev/null
+
+ # shellcheck disable=SC2086 # this needs split options
+ iperf3 -s -DB "${dst_addr4}" ${dst_port}
+ sleep 2
+
+ # shellcheck disable=SC2086 # this needs split options
+ B iperf3 -u -c "${dst_addr4}" -Z -b 100M -l16 -t1000 \
+ ${dst_port} ${src_port} ${src_addr4}
+
+ src_addr4=
+ src_port=
+ dst_port=
+ }
+ elif command -v iperf >/dev/null; then
+ flood_udp() {
+ [ -n "${dst_port}" ] && dst_port="-p ${dst_port}"
+ if [ -n "${src_addr4}" ]; then
+ B ip addr add "${src_addr4}/16" dev veth_b
+ src_addr4="-B ${src_addr4}"
+ else
+ B ip addr add dev veth_b 10.0.0.2
+ src_addr4="-B 10.0.0.2"
+ fi
+ if [ -n "${src_port}" ]; then
+ src_addr4="${src_addr4}:${src_port}"
+ fi
+ B ip route add default dev veth_b
+ ip addr add "${dst_addr4}" dev veth_a 2>/dev/null
+
+ # shellcheck disable=SC2086 # this needs split options
+ iperf -u -sDB "${dst_addr4}" ${dst_port} >/dev/null 2>&1
+ sleep 2
+
+ # shellcheck disable=SC2086 # this needs split options
+ B iperf -u -c "${dst_addr4}" -b 100M -l1 -t1000 \
+ ${dst_port} ${src_addr4}
+
+ src_addr4=
+ src_port=
+ dst_port=
+ }
+ elif command -v netperf >/dev/null; then
+ flood_udp() {
+ [ -n "${dst_port}" ] && dst_port="-p ${dst_port}"
+ if [ -n "${src_addr4}" ]; then
+ B ip addr add "${src_addr4}/16" dev veth_b
+ else
+ B ip addr add dev veth_b 10.0.0.2
+ src_addr4="10.0.0.2"
+ fi
+ if [ -n "${src_port}" ]; then
+ dst_port="${dst_port},${src_port}"
+ fi
+ B ip route add default dev veth_b
+ ip addr add "${dst_addr4}" dev veth_a 2>/dev/null
+
+ # shellcheck disable=SC2086 # this needs split options
+ netserver -4 ${dst_port} -L "${dst_addr4}" \
+ >/dev/null 2>&1
+ sleep 2
+
+ # shellcheck disable=SC2086 # this needs split options
+ B netperf -4 -H "${dst_addr4}" ${dst_port} \
+ -L "${src_addr4}" -l 1000 -t UDP_STREAM
+
+ src_addr4=
+ src_port=
+ dst_port=
+ }
+ else
+ return 1
+ fi
+}
+
+# Find pktgen script and set up function to start pktgen injection
+setup_perf() {
+ for pktgen_script_path in ${PKTGEN_SCRIPT_PATHS} __notfound; do
+ command -v "${pktgen_script_path}" >/dev/null && break
+ done
+ [ "${pktgen_script_path}" = "__notfound" ] && return 1
+
+ perf_ipv4() {
+ ${pktgen_script_path} -s80 \
+ -i veth_a -d "${dst_addr4}" -p "${dst_port}" \
+ -m "${dst_mac}" \
+ -t $(($(nproc) / 5 + 1)) -b10000 -n0 2>/dev/null &
+ perf_pid=$!
+ }
+ perf_ipv6() {
+ IP6=6 ${pktgen_script_path} -s100 \
+ -i veth_a -d "${dst_addr6}" -p "${dst_port}" \
+ -m "${dst_mac}" \
+ -t $(($(nproc) / 5 + 1)) -b10000 -n0 2>/dev/null &
+ perf_pid=$!
+ }
+}
+
+# Clean up before each test
+cleanup() {
+ nft reset counter inet filter test >/dev/null 2>&1
+ nft flush ruleset >/dev/null 2>&1
+ ip link del dummy0 2>/dev/null
+ ip route del default 2>/dev/null
+ ip -6 route del default 2>/dev/null
+ ip netns del B 2>/dev/null
+ ip link del veth_a 2>/dev/null
+ timeout=
+ killall iperf3 2>/dev/null
+ killall iperf 2>/dev/null
+ killall netperf 2>/dev/null
+ killall netserver 2>/dev/null
+ rm -f ${tmp}
+ sleep 2
+}
+
+# Entry point for setup functions
+setup() {
+ if [ "$(id -u)" -ne 0 ]; then
+ echo " need to run as root"
+ exit ${KSELFTEST_SKIP}
+ fi
+
+ cleanup
+ check_tools || return 1
+ for arg do
+ if ! eval setup_"${arg}"; then
+ err " ${arg} not supported"
+ return 1
+ fi
+ done
+}
+
+# Format integer into IPv4 address, summing 10.0.0.5 (arbitrary) to it
+format_addr4() {
+ a=$((${1} + 16777216 * 10 + 5))
+ printf "%i.%i.%i.%i" \
+ "$((a / 16777216))" "$((a % 16777216 / 65536))" \
+ "$((a % 65536 / 256))" "$((a % 256))"
+}
+
+# Format integer into IPv6 address, summing 2001:db8:: to it
+format_addr6() {
+ printf "2001:db8::%04x:%04x" "$((${1} / 65536))" "$((${1} % 65536))"
+}
+
+# Format integer into EUI-48 address, summing 00:01:00:00:00:00 to it
+format_mac() {
+ printf "00:01:%02x:%02x:%02x:%02x" \
+ "$((${1} / 16777216))" "$((${1} % 16777216 / 65536))" \
+ "$((${1} % 65536 / 256))" "$((${1} % 256))"
+}
+
+# Format integer into port, avoid 0 port
+format_port() {
+ printf "%i" "$((${1} % 65534 + 1))"
+}
+
+# Drop suffixed '6' from L4 protocol, if any
+format_proto() {
+ printf "%s" "${proto}" | tr -d 6
+}
+
+# Format destination and source fields into nft concatenated type
+format() {
+ __start=
+ __end=
+ __expr="{ "
+
+ for f in ${dst}; do
+ [ "${__expr}" != "{ " ] && __expr="${__expr} . "
+
+ __start="$(eval format_"${f}" "${start}")"
+ __end="$(eval format_"${f}" "${end}")"
+
+ if [ "${f}" = "proto" ]; then
+ __expr="${__expr}${__start}"
+ else
+ __expr="${__expr}${__start}-${__end}"
+ fi
+ done
+ for f in ${src}; do
+ __expr="${__expr} . "
+ __start="$(eval format_"${f}" "${srcstart}")"
+ __end="$(eval format_"${f}" "${srcend}")"
+
+ if [ "${f}" = "proto" ]; then
+ __expr="${__expr}${__start}"
+ else
+ __expr="${__expr}${__start}-${__end}"
+ fi
+ done
+
+ if [ -n "${timeout}" ]; then
+ echo "${__expr} timeout ${timeout}s }"
+ else
+ echo "${__expr} }"
+ fi
+}
+
+# Format destination and source fields into nft type, start element only
+format_norange() {
+ __expr="{ "
+
+ for f in ${dst}; do
+ [ "${__expr}" != "{ " ] && __expr="${__expr} . "
+
+ __expr="${__expr}$(eval format_"${f}" "${start}")"
+ done
+ for f in ${src}; do
+ __expr="${__expr} . $(eval format_"${f}" "${start}")"
+ done
+
+ echo "${__expr} }"
+}
+
+# Format first destination field into nft type
+format_noconcat() {
+ for f in ${dst}; do
+ __start="$(eval format_"${f}" "${start}")"
+ __end="$(eval format_"${f}" "${end}")"
+
+ if [ "${f}" = "proto" ]; then
+ echo "{ ${__start} }"
+ else
+ echo "{ ${__start}-${__end} }"
+ fi
+ return
+ done
+}
+
+# Add single entry to 'test' set in 'inet filter' table
+add() {
+ if ! nft add element inet filter test "${1}"; then
+ err "Failed to add ${1} given ruleset:"
+ err "$(nft -a list ruleset)"
+ return 1
+ fi
+}
+
+# Format and output entries for sets in 'netdev perf' table
+add_perf() {
+ if [ "${1}" = "test" ]; then
+ echo "add element netdev perf test $(format)"
+ elif [ "${1}" = "norange" ]; then
+ echo "add element netdev perf norange $(format_norange)"
+ elif [ "${1}" = "noconcat" ]; then
+ echo "add element netdev perf noconcat $(format_noconcat)"
+ fi
+}
+
+# Add single entry to 'norange' set in 'netdev perf' table
+add_perf_norange() {
+ if ! nft add element netdev perf norange "${1}"; then
+ err "Failed to add ${1} given ruleset:"
+ err "$(nft -a list ruleset)"
+ return 1
+ fi
+}
+
+# Add single entry to 'noconcat' set in 'netdev perf' table
+add_perf_noconcat() {
+ if ! nft add element netdev perf noconcat "${1}"; then
+ err "Failed to add ${1} given ruleset:"
+ err "$(nft -a list ruleset)"
+ return 1
+ fi
+}
+
+# Delete single entry from set
+del() {
+ if ! nft delete element inet filter test "${1}"; then
+ err "Failed to delete ${1} given ruleset:"
+ err "$(nft -a list ruleset)"
+ return 1
+ fi
+}
+
+# Return packet count from 'test' counter in 'inet filter' table
+count_packets() {
+ found=0
+ for token in $(nft list counter inet filter test); do
+ [ ${found} -eq 1 ] && echo "${token}" && return
+ [ "${token}" = "packets" ] && found=1
+ done
+}
+
+# Return packet count from 'test' counter in 'netdev perf' table
+count_perf_packets() {
+ found=0
+ for token in $(nft list counter netdev perf test); do
+ [ ${found} -eq 1 ] && echo "${token}" && return
+ [ "${token}" = "packets" ] && found=1
+ done
+}
+
+# Set MAC addresses, send traffic according to specifier
+flood() {
+ ip link set veth_a address "$(format_mac "${1}")"
+ ip -n B link set veth_b address "$(format_mac "${2}")"
+
+ for f in ${dst}; do
+ eval dst_"$f"=\$\(format_\$f "${1}"\)
+ done
+ for f in ${src}; do
+ eval src_"$f"=\$\(format_\$f "${2}"\)
+ done
+ eval flood_\$proto
+}
+
+# Set MAC addresses, start pktgen injection
+perf() {
+ dst_mac="$(format_mac "${1}")"
+ ip link set veth_a address "${dst_mac}"
+
+ for f in ${dst}; do
+ eval dst_"$f"=\$\(format_\$f "${1}"\)
+ done
+ for f in ${src}; do
+ eval src_"$f"=\$\(format_\$f "${2}"\)
+ done
+ eval perf_\$perf_proto
+}
+
+# Set MAC addresses, send single packet, check that it matches, reset counter
+send_match() {
+ ip link set veth_a address "$(format_mac "${1}")"
+ ip -n B link set veth_b address "$(format_mac "${2}")"
+
+ for f in ${dst}; do
+ eval dst_"$f"=\$\(format_\$f "${1}"\)
+ done
+ for f in ${src}; do
+ eval src_"$f"=\$\(format_\$f "${2}"\)
+ done
+ eval send_\$proto
+ if [ "$(count_packets)" != "1" ]; then
+ err "${proto} packet to:"
+ err " $(for f in ${dst}; do
+ eval format_\$f "${1}"; printf ' '; done)"
+ err "from:"
+ err " $(for f in ${src}; do
+ eval format_\$f "${2}"; printf ' '; done)"
+ err "should have matched ruleset:"
+ err "$(nft -a list ruleset)"
+ return 1
+ fi
+ nft reset counter inet filter test >/dev/null
+}
+
+# Set MAC addresses, send single packet, check that it doesn't match
+send_nomatch() {
+ ip link set veth_a address "$(format_mac "${1}")"
+ ip -n B link set veth_b address "$(format_mac "${2}")"
+
+ for f in ${dst}; do
+ eval dst_"$f"=\$\(format_\$f "${1}"\)
+ done
+ for f in ${src}; do
+ eval src_"$f"=\$\(format_\$f "${2}"\)
+ done
+ eval send_\$proto
+ if [ "$(count_packets)" != "0" ]; then
+ err "${proto} packet to:"
+ err " $(for f in ${dst}; do
+ eval format_\$f "${1}"; printf ' '; done)"
+ err "from:"
+ err " $(for f in ${src}; do
+ eval format_\$f "${2}"; printf ' '; done)"
+ err "should not have matched ruleset:"
+ err "$(nft -a list ruleset)"
+ return 1
+ fi
+}
+
+# Correctness test template:
+# - add ranged element, check that packets match it
+# - check that packets outside range don't match it
+# - remove some elements, check that packets don't match anymore
+test_correctness() {
+ setup veth send_"${proto}" set || return ${KSELFTEST_SKIP}
+
+ range_size=1
+ for i in $(seq "${start}" $((start + count))); do
+ end=$((start + range_size))
+
+ # Avoid negative or zero-sized port ranges
+ if [ $((end / 65534)) -gt $((start / 65534)) ]; then
+ start=${end}
+ end=$((end + 1))
+ fi
+ srcstart=$((start + src_delta))
+ srcend=$((end + src_delta))
+
+ add "$(format)" || return 1
+ for j in $(seq ${start} $((range_size / 2 + 1)) ${end}); do
+ send_match "${j}" $((j + src_delta)) || return 1
+ done
+ send_nomatch $((end + 1)) $((end + 1 + src_delta)) || return 1
+
+ # Delete elements now and then
+ if [ $((i % 3)) -eq 0 ]; then
+ del "$(format)" || return 1
+ for j in $(seq ${start} \
+ $((range_size / 2 + 1)) ${end}); do
+ send_nomatch "${j}" $((j + src_delta)) \
+ || return 1
+ done
+ fi
+
+ range_size=$((range_size + 1))
+ start=$((end + range_size))
+ done
+}
+
+# Concurrency test template:
+# - add all the elements
+# - start a thread for each physical thread that:
+# - adds all the elements
+# - flushes the set
+# - adds all the elements
+# - flushes the entire ruleset
+# - adds the set back
+# - adds all the elements
+# - delete all the elements
+test_concurrency() {
+ proto=${flood_proto}
+ tools=${flood_tools}
+ chain_spec=${flood_spec}
+ setup veth flood_"${proto}" set || return ${KSELFTEST_SKIP}
+
+ range_size=1
+ cstart=${start}
+ flood_pids=
+ for i in $(seq ${start} $((start + count))); do
+ end=$((start + range_size))
+ srcstart=$((start + src_delta))
+ srcend=$((end + src_delta))
+
+ add "$(format)" || return 1
+
+ flood "${i}" $((i + src_delta)) & flood_pids="${flood_pids} $!"
+
+ range_size=$((range_size + 1))
+ start=$((end + range_size))
+ done
+
+ sleep 10
+
+ pids=
+ for c in $(seq 1 "$(nproc)"); do (
+ for r in $(seq 1 "${race_repeat}"); do
+ range_size=1
+
+ # $start needs to be local to this subshell
+ # shellcheck disable=SC2030
+ start=${cstart}
+ for i in $(seq ${start} $((start + count))); do
+ end=$((start + range_size))
+ srcstart=$((start + src_delta))
+ srcend=$((end + src_delta))
+
+ add "$(format)" 2>/dev/null
+
+ range_size=$((range_size + 1))
+ start=$((end + range_size))
+ done
+
+ nft flush inet filter test 2>/dev/null
+
+ range_size=1
+ start=${cstart}
+ for i in $(seq ${start} $((start + count))); do
+ end=$((start + range_size))
+ srcstart=$((start + src_delta))
+ srcend=$((end + src_delta))
+
+ add "$(format)" 2>/dev/null
+
+ range_size=$((range_size + 1))
+ start=$((end + range_size))
+ done
+
+ nft flush ruleset
+ setup set 2>/dev/null
+
+ range_size=1
+ start=${cstart}
+ for i in $(seq ${start} $((start + count))); do
+ end=$((start + range_size))
+ srcstart=$((start + src_delta))
+ srcend=$((end + src_delta))
+
+ add "$(format)" 2>/dev/null
+
+ range_size=$((range_size + 1))
+ start=$((end + range_size))
+ done
+
+ range_size=1
+ start=${cstart}
+ for i in $(seq ${start} $((start + count))); do
+ end=$((start + range_size))
+ srcstart=$((start + src_delta))
+ srcend=$((end + src_delta))
+
+ del "$(format)" 2>/dev/null
+
+ range_size=$((range_size + 1))
+ start=$((end + range_size))
+ done
+ done
+ ) & pids="${pids} $!"
+ done
+
+ # shellcheck disable=SC2046,SC2086 # word splitting wanted here
+ wait $(for pid in ${pids}; do echo ${pid}; done)
+ # shellcheck disable=SC2046,SC2086
+ kill $(for pid in ${flood_pids}; do echo ${pid}; done) 2>/dev/null
+ # shellcheck disable=SC2046,SC2086
+ wait $(for pid in ${flood_pids}; do echo ${pid}; done) 2>/dev/null
+
+ return 0
+}
+
+# Timeout test template:
+# - add all the elements with 3s timeout while checking that packets match
+# - wait 3s after the last insertion, check that packets don't match any entry
+test_timeout() {
+ setup veth send_"${proto}" set || return ${KSELFTEST_SKIP}
+
+ timeout=3
+ range_size=1
+ for i in $(seq "${start}" $((start + count))); do
+ end=$((start + range_size))
+ srcstart=$((start + src_delta))
+ srcend=$((end + src_delta))
+
+ add "$(format)" || return 1
+
+ for j in $(seq ${start} $((range_size / 2 + 1)) ${end}); do
+ send_match "${j}" $((j + src_delta)) || return 1
+ done
+
+ range_size=$((range_size + 1))
+ start=$((end + range_size))
+ done
+ sleep 3
+ for i in $(seq ${start} $((start + count))); do
+ end=$((start + range_size))
+ srcstart=$((start + src_delta))
+ srcend=$((end + src_delta))
+
+ for j in $(seq ${start} $((range_size / 2 + 1)) ${end}); do
+ send_nomatch "${j}" $((j + src_delta)) || return 1
+ done
+
+ range_size=$((range_size + 1))
+ start=$((end + range_size))
+ done
+}
+
+# Performance test template:
+# - add concatenated ranged entries
+# - add non-ranged concatenated entries (for hash set matching rate baseline)
+# - add ranged entries with first field only (for rbhash baseline)
+# - start pktgen injection directly on device rx path of this namespace
+# - measure drop only rate, hash and rbtree baselines, then matching rate
+test_performance() {
+ chain_spec=${perf_spec}
+ dst="${perf_dst}"
+ src="${perf_src}"
+ setup veth perf set || return ${KSELFTEST_SKIP}
+
+ first=${start}
+ range_size=1
+ for set in test norange noconcat; do
+ start=${first}
+ for i in $(seq ${start} $((start + perf_entries))); do
+ end=$((start + range_size))
+ srcstart=$((start + src_delta))
+ srcend=$((end + src_delta))
+
+ if [ $((end / 65534)) -gt $((start / 65534)) ]; then
+ start=${end}
+ end=$((end + 1))
+ elif [ ${start} -eq ${end} ]; then
+ end=$((start + 1))
+ fi
+
+ add_perf ${set}
+
+ start=$((end + range_size))
+ done > "${tmp}"
+ nft -f "${tmp}"
+ done
+
+ perf $((end - 1)) ${srcstart}
+
+ sleep 2
+
+ nft add rule netdev perf test counter name \"test\" drop
+ nft reset counter netdev perf test >/dev/null 2>&1
+ sleep "${perf_duration}"
+ pps="$(printf %10s $(($(count_perf_packets) / perf_duration)))"
+ info " baseline (drop from netdev hook): ${pps}pps"
+ handle="$(nft -a list chain netdev perf test | grep counter)"
+ handle="${handle##* }"
+ nft delete rule netdev perf test handle "${handle}"
+
+ nft add rule "netdev perf test ${chain_spec} @norange \
+ counter name \"test\" drop"
+ nft reset counter netdev perf test >/dev/null 2>&1
+ sleep "${perf_duration}"
+ pps="$(printf %10s $(($(count_perf_packets) / perf_duration)))"
+ info " baseline hash (non-ranged entries): ${pps}pps"
+ handle="$(nft -a list chain netdev perf test | grep counter)"
+ handle="${handle##* }"
+ nft delete rule netdev perf test handle "${handle}"
+
+ nft add rule "netdev perf test ${chain_spec%%. *} @noconcat \
+ counter name \"test\" drop"
+ nft reset counter netdev perf test >/dev/null 2>&1
+ sleep "${perf_duration}"
+ pps="$(printf %10s $(($(count_perf_packets) / perf_duration)))"
+ info " baseline rbtree (match on first field only): ${pps}pps"
+ handle="$(nft -a list chain netdev perf test | grep counter)"
+ handle="${handle##* }"
+ nft delete rule netdev perf test handle "${handle}"
+
+ nft add rule "netdev perf test ${chain_spec} @test \
+ counter name \"test\" drop"
+ nft reset counter netdev perf test >/dev/null 2>&1
+ sleep "${perf_duration}"
+ pps="$(printf %10s $(($(count_perf_packets) / perf_duration)))"
+ p5="$(printf %5s "${perf_entries}")"
+ info " set with ${p5} full, ranged entries: ${pps}pps"
+ kill "${perf_pid}"
+}
+
+test_bug_flush_remove_add() {
+ set_cmd='{ set s { type ipv4_addr . inet_service; flags interval; }; }'
+ elem1='{ 10.0.0.1 . 22-25, 10.0.0.1 . 10-20 }'
+ elem2='{ 10.0.0.1 . 10-20, 10.0.0.1 . 22-25 }'
+ for i in `seq 1 100`; do
+ nft add table t ${set_cmd} || return ${KSELFTEST_SKIP}
+ nft add element t s ${elem1} 2>/dev/null || return 1
+ nft flush set t s 2>/dev/null || return 1
+ nft add element t s ${elem2} 2>/dev/null || return 1
+ done
+ nft flush ruleset
+}
+
+# - add ranged element, check that packets match it
+# - reload the set, check packets still match
+test_bug_reload() {
+ setup veth send_"${proto}" set || return ${KSELFTEST_SKIP}
+ rstart=${start}
+
+ range_size=1
+ for i in $(seq "${start}" $((start + count))); do
+ end=$((start + range_size))
+
+ # Avoid negative or zero-sized port ranges
+ if [ $((end / 65534)) -gt $((start / 65534)) ]; then
+ start=${end}
+ end=$((end + 1))
+ fi
+ srcstart=$((start + src_delta))
+ srcend=$((end + src_delta))
+
+ add "$(format)" || return 1
+ range_size=$((range_size + 1))
+ start=$((end + range_size))
+ done
+
+ # check kernel does allocate pcpu sctrach map
+ # for reload with no elemet add/delete
+ ( echo flush set inet filter test ;
+ nft list set inet filter test ) | nft -f -
+
+ start=${rstart}
+ range_size=1
+
+ for i in $(seq "${start}" $((start + count))); do
+ end=$((start + range_size))
+
+ # Avoid negative or zero-sized port ranges
+ if [ $((end / 65534)) -gt $((start / 65534)) ]; then
+ start=${end}
+ end=$((end + 1))
+ fi
+ srcstart=$((start + src_delta))
+ srcend=$((end + src_delta))
+
+ for j in $(seq ${start} $((range_size / 2 + 1)) ${end}); do
+ send_match "${j}" $((j + src_delta)) || return 1
+ done
+
+ range_size=$((range_size + 1))
+ start=$((end + range_size))
+ done
+
+ nft flush ruleset
+}
+
+test_reported_issues() {
+ eval test_bug_"${subtest}"
+}
+
+# Run everything in a separate network namespace
+[ "${1}" != "run" ] && { unshare -n "${0}" run; exit $?; }
+tmp="$(mktemp)"
+trap cleanup EXIT
+
+# Entry point for test runs
+passed=0
+for name in ${TESTS}; do
+ printf "TEST: %s\n" "$(echo ${name} | tr '_' ' ')"
+ if [ "${name}" = "reported_issues" ]; then
+ SUBTESTS="${BUGS}"
+ else
+ SUBTESTS="${TYPES}"
+ fi
+
+ for subtest in ${SUBTESTS}; do
+ eval desc=\$TYPE_"${subtest}"
+ IFS='
+'
+ for __line in ${desc}; do
+ # shellcheck disable=SC2086
+ eval ${__line%% *}=\"${__line##* }\";
+ done
+ IFS='
+'
+
+ if [ "${name}" = "concurrency" ] && \
+ [ "${race_repeat}" = "0" ]; then
+ continue
+ fi
+ if [ "${name}" = "performance" ] && \
+ [ "${perf_duration}" = "0" ]; then
+ continue
+ fi
+
+ printf " %-60s " "${display}"
+ eval test_"${name}"
+ ret=$?
+
+ if [ $ret -eq 0 ]; then
+ printf "[ OK ]\n"
+ info_flush
+ passed=$((passed + 1))
+ elif [ $ret -eq 1 ]; then
+ printf "[FAIL]\n"
+ err_flush
+ exit 1
+ elif [ $ret -eq ${KSELFTEST_SKIP} ]; then
+ printf "[SKIP]\n"
+ err_flush
+ fi
+ done
+done
+
+[ ${passed} -eq 0 ] && exit ${KSELFTEST_SKIP} || exit 0
diff --git a/tools/testing/selftests/netfilter/nft_conntrack_helper.sh b/tools/testing/selftests/netfilter/nft_conntrack_helper.sh
new file mode 100755
index 000000000..bf6b9626c
--- /dev/null
+++ b/tools/testing/selftests/netfilter/nft_conntrack_helper.sh
@@ -0,0 +1,181 @@
+#!/bin/bash
+#
+# This tests connection tracking helper assignment:
+# 1. can attach ftp helper to a connection from nft ruleset.
+# 2. auto-assign still works.
+#
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+ret=0
+
+sfx=$(mktemp -u "XXXXXXXX")
+ns1="ns1-$sfx"
+ns2="ns2-$sfx"
+testipv6=1
+
+cleanup()
+{
+ ip netns del ${ns1}
+ ip netns del ${ns2}
+}
+
+nft --version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without nft tool"
+ exit $ksft_skip
+fi
+
+ip -Version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+
+conntrack -V > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without conntrack tool"
+ exit $ksft_skip
+fi
+
+which nc >/dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without netcat tool"
+ exit $ksft_skip
+fi
+
+trap cleanup EXIT
+
+ip netns add ${ns1}
+ip netns add ${ns2}
+
+ip link add veth0 netns ${ns1} type veth peer name veth0 netns ${ns2} > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: No virtual ethernet pair device support in kernel"
+ exit $ksft_skip
+fi
+
+ip -net ${ns1} link set lo up
+ip -net ${ns1} link set veth0 up
+
+ip -net ${ns2} link set lo up
+ip -net ${ns2} link set veth0 up
+
+ip -net ${ns1} addr add 10.0.1.1/24 dev veth0
+ip -net ${ns1} addr add dead:1::1/64 dev veth0
+
+ip -net ${ns2} addr add 10.0.1.2/24 dev veth0
+ip -net ${ns2} addr add dead:1::2/64 dev veth0
+
+load_ruleset_family() {
+ local family=$1
+ local ns=$2
+
+ip netns exec ${ns} nft -f - <<EOF
+table $family raw {
+ ct helper ftp {
+ type "ftp" protocol tcp
+ }
+ chain pre {
+ type filter hook prerouting priority 0; policy accept;
+ tcp dport 2121 ct helper set "ftp"
+ }
+ chain output {
+ type filter hook output priority 0; policy accept;
+ tcp dport 2121 ct helper set "ftp"
+ }
+}
+EOF
+ return $?
+}
+
+check_for_helper()
+{
+ local netns=$1
+ local message=$2
+ local port=$3
+
+ if echo $message |grep -q 'ipv6';then
+ local family="ipv6"
+ else
+ local family="ipv4"
+ fi
+
+ ip netns exec ${netns} conntrack -L -f $family -p tcp --dport $port 2> /dev/null |grep -q 'helper=ftp'
+ if [ $? -ne 0 ] ; then
+ echo "FAIL: ${netns} did not show attached helper $message" 1>&2
+ ret=1
+ fi
+
+ echo "PASS: ${netns} connection on port $port has ftp helper attached" 1>&2
+ return 0
+}
+
+test_helper()
+{
+ local port=$1
+ local msg=$2
+
+ sleep 3 | ip netns exec ${ns2} nc -w 2 -l -p $port > /dev/null &
+
+ sleep 1 | ip netns exec ${ns1} nc -w 2 10.0.1.2 $port > /dev/null &
+ sleep 1
+
+ check_for_helper "$ns1" "ip $msg" $port
+ check_for_helper "$ns2" "ip $msg" $port
+
+ wait
+
+ if [ $testipv6 -eq 0 ] ;then
+ return 0
+ fi
+
+ ip netns exec ${ns1} conntrack -F 2> /dev/null
+ ip netns exec ${ns2} conntrack -F 2> /dev/null
+
+ sleep 3 | ip netns exec ${ns2} nc -w 2 -6 -l -p $port > /dev/null &
+
+ sleep 1 | ip netns exec ${ns1} nc -w 2 -6 dead:1::2 $port > /dev/null &
+ sleep 1
+
+ check_for_helper "$ns1" "ipv6 $msg" $port
+ check_for_helper "$ns2" "ipv6 $msg" $port
+
+ wait
+}
+
+load_ruleset_family ip ${ns1}
+if [ $? -ne 0 ];then
+ echo "FAIL: ${ns1} cannot load ip ruleset" 1>&2
+ exit 1
+fi
+
+load_ruleset_family ip6 ${ns1}
+if [ $? -ne 0 ];then
+ echo "SKIP: ${ns1} cannot load ip6 ruleset" 1>&2
+ testipv6=0
+fi
+
+load_ruleset_family inet ${ns2}
+if [ $? -ne 0 ];then
+ echo "SKIP: ${ns1} cannot load inet ruleset" 1>&2
+ load_ruleset_family ip ${ns2}
+ if [ $? -ne 0 ];then
+ echo "FAIL: ${ns2} cannot load ip ruleset" 1>&2
+ exit 1
+ fi
+
+ if [ $testipv6 -eq 1 ] ;then
+ load_ruleset_family ip6 ${ns2}
+ if [ $? -ne 0 ];then
+ echo "FAIL: ${ns2} cannot load ip6 ruleset" 1>&2
+ exit 1
+ fi
+ fi
+fi
+
+test_helper 2121 "set via ruleset"
+ip netns exec ${ns1} sysctl -q 'net.netfilter.nf_conntrack_helper=1'
+ip netns exec ${ns2} sysctl -q 'net.netfilter.nf_conntrack_helper=1'
+test_helper 21 "auto-assign"
+
+exit $ret
diff --git a/tools/testing/selftests/netfilter/nft_flowtable.sh b/tools/testing/selftests/netfilter/nft_flowtable.sh
new file mode 100755
index 000000000..aefe50e0e
--- /dev/null
+++ b/tools/testing/selftests/netfilter/nft_flowtable.sh
@@ -0,0 +1,420 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# This tests basic flowtable functionality.
+# Creates following default topology:
+#
+# Originator (MTU 9000) <-Router1-> MTU 1500 <-Router2-> Responder (MTU 2000)
+# Router1 is the one doing flow offloading, Router2 has no special
+# purpose other than having a link that is smaller than either Originator
+# and responder, i.e. TCPMSS announced values are too large and will still
+# result in fragmentation and/or PMTU discovery.
+#
+# You can check with different Orgininator/Link/Responder MTU eg:
+# nft_flowtable.sh -o8000 -l1500 -r2000
+#
+
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+ret=0
+
+ns1in=""
+ns2in=""
+ns1out=""
+ns2out=""
+
+log_netns=$(sysctl -n net.netfilter.nf_log_all_netns)
+
+checktool (){
+ if ! $1 > /dev/null 2>&1; then
+ echo "SKIP: Could not $2"
+ exit $ksft_skip
+ fi
+}
+
+checktool "nft --version" "run test without nft tool"
+checktool "ip -Version" "run test without ip tool"
+checktool "which nc" "run test without nc (netcat)"
+checktool "ip netns add nsr1" "create net namespace"
+
+ip netns add ns1
+ip netns add ns2
+
+ip netns add nsr2
+
+cleanup() {
+ for i in 1 2; do
+ ip netns del ns$i
+ ip netns del nsr$i
+ done
+
+ rm -f "$ns1in" "$ns1out"
+ rm -f "$ns2in" "$ns2out"
+
+ [ $log_netns -eq 0 ] && sysctl -q net.netfilter.nf_log_all_netns=$log_netns
+}
+
+trap cleanup EXIT
+
+sysctl -q net.netfilter.nf_log_all_netns=1
+
+ip link add veth0 netns nsr1 type veth peer name eth0 netns ns1
+ip link add veth1 netns nsr1 type veth peer name veth0 netns nsr2
+
+ip link add veth1 netns nsr2 type veth peer name eth0 netns ns2
+
+for dev in lo veth0 veth1; do
+ for i in 1 2; do
+ ip -net nsr$i link set $dev up
+ done
+done
+
+ip -net nsr1 addr add 10.0.1.1/24 dev veth0
+ip -net nsr1 addr add dead:1::1/64 dev veth0
+
+ip -net nsr2 addr add 10.0.2.1/24 dev veth1
+ip -net nsr2 addr add dead:2::1/64 dev veth1
+
+# set different MTUs so we need to push packets coming from ns1 (large MTU)
+# to ns2 (smaller MTU) to stack either to perform fragmentation (ip_no_pmtu_disc=1),
+# or to do PTMU discovery (send ICMP error back to originator).
+# ns2 is going via nsr2 with a smaller mtu, so that TCPMSS announced by both peers
+# is NOT the lowest link mtu.
+
+omtu=9000
+lmtu=1500
+rmtu=2000
+
+usage(){
+ echo "nft_flowtable.sh [OPTIONS]"
+ echo
+ echo "MTU options"
+ echo " -o originator"
+ echo " -l link"
+ echo " -r responder"
+ exit 1
+}
+
+while getopts "o:l:r:" o
+do
+ case $o in
+ o) omtu=$OPTARG;;
+ l) lmtu=$OPTARG;;
+ r) rmtu=$OPTARG;;
+ *) usage;;
+ esac
+done
+
+if ! ip -net nsr1 link set veth0 mtu $omtu; then
+ exit 1
+fi
+
+ip -net ns1 link set eth0 mtu $omtu
+
+if ! ip -net nsr2 link set veth1 mtu $rmtu; then
+ exit 1
+fi
+
+ip -net ns2 link set eth0 mtu $rmtu
+
+# transfer-net between nsr1 and nsr2.
+# these addresses are not used for connections.
+ip -net nsr1 addr add 192.168.10.1/24 dev veth1
+ip -net nsr1 addr add fee1:2::1/64 dev veth1
+
+ip -net nsr2 addr add 192.168.10.2/24 dev veth0
+ip -net nsr2 addr add fee1:2::2/64 dev veth0
+
+for i in 1 2; do
+ ip netns exec nsr$i sysctl net.ipv4.conf.veth0.forwarding=1 > /dev/null
+ ip netns exec nsr$i sysctl net.ipv4.conf.veth1.forwarding=1 > /dev/null
+
+ ip -net ns$i link set lo up
+ ip -net ns$i link set eth0 up
+ ip -net ns$i addr add 10.0.$i.99/24 dev eth0
+ ip -net ns$i route add default via 10.0.$i.1
+ ip -net ns$i addr add dead:$i::99/64 dev eth0
+ ip -net ns$i route add default via dead:$i::1
+ if ! ip netns exec ns$i sysctl net.ipv4.tcp_no_metrics_save=1 > /dev/null; then
+ echo "ERROR: Check Originator/Responder values (problem during address addition)"
+ exit 1
+ fi
+
+ # don't set ip DF bit for first two tests
+ ip netns exec ns$i sysctl net.ipv4.ip_no_pmtu_disc=1 > /dev/null
+done
+
+ip -net nsr1 route add default via 192.168.10.2
+ip -net nsr2 route add default via 192.168.10.1
+
+ip netns exec nsr1 nft -f - <<EOF
+table inet filter {
+ flowtable f1 {
+ hook ingress priority 0
+ devices = { veth0, veth1 }
+ }
+
+ chain forward {
+ type filter hook forward priority 0; policy drop;
+
+ # flow offloaded? Tag ct with mark 1, so we can detect when it fails.
+ meta oif "veth1" tcp dport 12345 flow offload @f1 counter
+
+ # use packet size to trigger 'should be offloaded by now'.
+ # otherwise, if 'flow offload' expression never offloads, the
+ # test will pass.
+ tcp dport 12345 meta length gt 200 ct mark set 1 counter
+
+ # this turns off flow offloading internally, so expect packets again
+ tcp flags fin,rst ct mark set 0 accept
+
+ # this allows large packets from responder, we need this as long
+ # as PMTUd is off.
+ # This rule is deleted for the last test, when we expect PMTUd
+ # to kick in and ensure all packets meet mtu requirements.
+ meta length gt $lmtu accept comment something-to-grep-for
+
+ # next line blocks connection w.o. working offload.
+ # we only do this for reverse dir, because we expect packets to
+ # enter slow path due to MTU mismatch of veth0 and veth1.
+ tcp sport 12345 ct mark 1 counter log prefix "mark failure " drop
+
+ ct state established,related accept
+
+ # for packets that we can't offload yet, i.e. SYN (any ct that is not confirmed)
+ meta length lt 200 oif "veth1" tcp dport 12345 counter accept
+
+ meta nfproto ipv4 meta l4proto icmp accept
+ meta nfproto ipv6 meta l4proto icmpv6 accept
+ }
+}
+EOF
+
+if [ $? -ne 0 ]; then
+ echo "SKIP: Could not load nft ruleset"
+ exit $ksft_skip
+fi
+
+# test basic connectivity
+if ! ip netns exec ns1 ping -c 1 -q 10.0.2.99 > /dev/null; then
+ echo "ERROR: ns1 cannot reach ns2" 1>&2
+ exit 1
+fi
+
+if ! ip netns exec ns2 ping -c 1 -q 10.0.1.99 > /dev/null; then
+ echo "ERROR: ns2 cannot reach ns1" 1>&2
+ exit 1
+fi
+
+if [ $ret -eq 0 ];then
+ echo "PASS: netns routing/connectivity: ns1 can reach ns2"
+fi
+
+ns1in=$(mktemp)
+ns1out=$(mktemp)
+ns2in=$(mktemp)
+ns2out=$(mktemp)
+
+make_file()
+{
+ name=$1
+
+ SIZE=$((RANDOM % (1024 * 8)))
+ TSIZE=$((SIZE * 1024))
+
+ dd if=/dev/urandom of="$name" bs=1024 count=$SIZE 2> /dev/null
+
+ SIZE=$((RANDOM % 1024))
+ SIZE=$((SIZE + 128))
+ TSIZE=$((TSIZE + SIZE))
+ dd if=/dev/urandom conf=notrunc of="$name" bs=1 count=$SIZE 2> /dev/null
+}
+
+check_transfer()
+{
+ in=$1
+ out=$2
+ what=$3
+
+ if ! cmp "$in" "$out" > /dev/null 2>&1; then
+ echo "FAIL: file mismatch for $what" 1>&2
+ ls -l "$in"
+ ls -l "$out"
+ return 1
+ fi
+
+ return 0
+}
+
+test_tcp_forwarding_ip()
+{
+ local nsa=$1
+ local nsb=$2
+ local dstip=$3
+ local dstport=$4
+ local lret=0
+
+ ip netns exec $nsb nc -w 5 -l -p 12345 < "$ns2in" > "$ns2out" &
+ lpid=$!
+
+ sleep 1
+ ip netns exec $nsa nc -w 4 "$dstip" "$dstport" < "$ns1in" > "$ns1out" &
+ cpid=$!
+
+ sleep 3
+
+ if ps -p $lpid > /dev/null;then
+ kill $lpid
+ fi
+
+ if ps -p $cpid > /dev/null;then
+ kill $cpid
+ fi
+
+ wait
+
+ if ! check_transfer "$ns1in" "$ns2out" "ns1 -> ns2"; then
+ lret=1
+ fi
+
+ if ! check_transfer "$ns2in" "$ns1out" "ns1 <- ns2"; then
+ lret=1
+ fi
+
+ return $lret
+}
+
+test_tcp_forwarding()
+{
+ test_tcp_forwarding_ip "$1" "$2" 10.0.2.99 12345
+
+ return $?
+}
+
+test_tcp_forwarding_nat()
+{
+ local lret
+
+ test_tcp_forwarding_ip "$1" "$2" 10.0.2.99 12345
+ lret=$?
+
+ if [ $lret -eq 0 ] ; then
+ test_tcp_forwarding_ip "$1" "$2" 10.6.6.6 1666
+ lret=$?
+ fi
+
+ return $lret
+}
+
+make_file "$ns1in"
+make_file "$ns2in"
+
+# First test:
+# No PMTU discovery, nsr1 is expected to fragment packets from ns1 to ns2 as needed.
+if test_tcp_forwarding ns1 ns2; then
+ echo "PASS: flow offloaded for ns1/ns2"
+else
+ echo "FAIL: flow offload for ns1/ns2:" 1>&2
+ ip netns exec nsr1 nft list ruleset
+ ret=1
+fi
+
+# delete default route, i.e. ns2 won't be able to reach ns1 and
+# will depend on ns1 being masqueraded in nsr1.
+# expect ns1 has nsr1 address.
+ip -net ns2 route del default via 10.0.2.1
+ip -net ns2 route del default via dead:2::1
+ip -net ns2 route add 192.168.10.1 via 10.0.2.1
+
+# Second test:
+# Same, but with NAT enabled.
+ip netns exec nsr1 nft -f - <<EOF
+table ip nat {
+ chain prerouting {
+ type nat hook prerouting priority 0; policy accept;
+ meta iif "veth0" ip daddr 10.6.6.6 tcp dport 1666 counter dnat ip to 10.0.2.99:12345
+ }
+
+ chain postrouting {
+ type nat hook postrouting priority 0; policy accept;
+ meta oifname "veth1" counter masquerade
+ }
+}
+EOF
+
+if test_tcp_forwarding_nat ns1 ns2; then
+ echo "PASS: flow offloaded for ns1/ns2 with NAT"
+else
+ echo "FAIL: flow offload for ns1/ns2 with NAT" 1>&2
+ ip netns exec nsr1 nft list ruleset
+ ret=1
+fi
+
+# Third test:
+# Same as second test, but with PMTU discovery enabled.
+handle=$(ip netns exec nsr1 nft -a list table inet filter | grep something-to-grep-for | cut -d \# -f 2)
+
+if ! ip netns exec nsr1 nft delete rule inet filter forward $handle; then
+ echo "FAIL: Could not delete large-packet accept rule"
+ exit 1
+fi
+
+ip netns exec ns1 sysctl net.ipv4.ip_no_pmtu_disc=0 > /dev/null
+ip netns exec ns2 sysctl net.ipv4.ip_no_pmtu_disc=0 > /dev/null
+
+if test_tcp_forwarding_nat ns1 ns2; then
+ echo "PASS: flow offloaded for ns1/ns2 with NAT and pmtu discovery"
+else
+ echo "FAIL: flow offload for ns1/ns2 with NAT and pmtu discovery" 1>&2
+ ip netns exec nsr1 nft list ruleset
+fi
+
+KEY_SHA="0x"$(ps -xaf | sha1sum | cut -d " " -f 1)
+KEY_AES="0x"$(ps -xaf | md5sum | cut -d " " -f 1)
+SPI1=$RANDOM
+SPI2=$RANDOM
+
+if [ $SPI1 -eq $SPI2 ]; then
+ SPI2=$((SPI2+1))
+fi
+
+do_esp() {
+ local ns=$1
+ local me=$2
+ local remote=$3
+ local lnet=$4
+ local rnet=$5
+ local spi_out=$6
+ local spi_in=$7
+
+ ip -net $ns xfrm state add src $remote dst $me proto esp spi $spi_in enc aes $KEY_AES auth sha1 $KEY_SHA mode tunnel sel src $rnet dst $lnet
+ ip -net $ns xfrm state add src $me dst $remote proto esp spi $spi_out enc aes $KEY_AES auth sha1 $KEY_SHA mode tunnel sel src $lnet dst $rnet
+
+ # to encrypt packets as they go out (includes forwarded packets that need encapsulation)
+ ip -net $ns xfrm policy add src $lnet dst $rnet dir out tmpl src $me dst $remote proto esp mode tunnel priority 1 action allow
+ # to fwd decrypted packets after esp processing:
+ ip -net $ns xfrm policy add src $rnet dst $lnet dir fwd tmpl src $remote dst $me proto esp mode tunnel priority 1 action allow
+
+}
+
+do_esp nsr1 192.168.10.1 192.168.10.2 10.0.1.0/24 10.0.2.0/24 $SPI1 $SPI2
+
+do_esp nsr2 192.168.10.2 192.168.10.1 10.0.2.0/24 10.0.1.0/24 $SPI2 $SPI1
+
+ip netns exec nsr1 nft delete table ip nat
+
+# restore default routes
+ip -net ns2 route del 192.168.10.1 via 10.0.2.1
+ip -net ns2 route add default via 10.0.2.1
+ip -net ns2 route add default via dead:2::1
+
+if test_tcp_forwarding ns1 ns2; then
+ echo "PASS: ipsec tunnel mode for ns1/ns2"
+else
+ echo "FAIL: ipsec tunnel mode for ns1/ns2"
+ ip netns exec nsr1 nft list ruleset 1>&2
+ ip netns exec nsr1 cat /proc/net/xfrm_stat 1>&2
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/netfilter/nft_meta.sh b/tools/testing/selftests/netfilter/nft_meta.sh
new file mode 100755
index 000000000..f33154c04
--- /dev/null
+++ b/tools/testing/selftests/netfilter/nft_meta.sh
@@ -0,0 +1,142 @@
+#!/bin/bash
+
+# check iif/iifname/oifgroup/iiftype match.
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+sfx=$(mktemp -u "XXXXXXXX")
+ns0="ns0-$sfx"
+
+if ! nft --version > /dev/null 2>&1; then
+ echo "SKIP: Could not run test without nft tool"
+ exit $ksft_skip
+fi
+
+cleanup()
+{
+ ip netns del "$ns0"
+}
+
+ip netns add "$ns0"
+ip -net "$ns0" link set lo up
+ip -net "$ns0" addr add 127.0.0.1 dev lo
+
+trap cleanup EXIT
+
+currentyear=$(date +%Y)
+lastyear=$((currentyear-1))
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table inet filter {
+ counter iifcount {}
+ counter iifnamecount {}
+ counter iifgroupcount {}
+ counter iiftypecount {}
+ counter infproto4count {}
+ counter il4protocounter {}
+ counter imarkcounter {}
+ counter icpu0counter {}
+ counter ilastyearcounter {}
+ counter icurrentyearcounter {}
+
+ counter oifcount {}
+ counter oifnamecount {}
+ counter oifgroupcount {}
+ counter oiftypecount {}
+ counter onfproto4count {}
+ counter ol4protocounter {}
+ counter oskuidcounter {}
+ counter oskgidcounter {}
+ counter omarkcounter {}
+
+ chain input {
+ type filter hook input priority 0; policy accept;
+
+ meta iif lo counter name "iifcount"
+ meta iifname "lo" counter name "iifnamecount"
+ meta iifgroup "default" counter name "iifgroupcount"
+ meta iiftype "loopback" counter name "iiftypecount"
+ meta nfproto ipv4 counter name "infproto4count"
+ meta l4proto icmp counter name "il4protocounter"
+ meta mark 42 counter name "imarkcounter"
+ meta cpu 0 counter name "icpu0counter"
+ meta time "$lastyear-01-01" - "$lastyear-12-31" counter name ilastyearcounter
+ meta time "$currentyear-01-01" - "$currentyear-12-31" counter name icurrentyearcounter
+ }
+
+ chain output {
+ type filter hook output priority 0; policy accept;
+ meta oif lo counter name "oifcount" counter
+ meta oifname "lo" counter name "oifnamecount"
+ meta oifgroup "default" counter name "oifgroupcount"
+ meta oiftype "loopback" counter name "oiftypecount"
+ meta nfproto ipv4 counter name "onfproto4count"
+ meta l4proto icmp counter name "ol4protocounter"
+ meta skuid 0 counter name "oskuidcounter"
+ meta skgid 0 counter name "oskgidcounter"
+ meta mark 42 counter name "omarkcounter"
+ }
+}
+EOF
+
+if [ $? -ne 0 ]; then
+ echo "SKIP: Could not add test ruleset"
+ exit $ksft_skip
+fi
+
+ret=0
+
+check_one_counter()
+{
+ local cname="$1"
+ local want="packets $2"
+ local verbose="$3"
+
+ if ! ip netns exec "$ns0" nft list counter inet filter $cname | grep -q "$want"; then
+ echo "FAIL: $cname, want \"$want\", got"
+ ret=1
+ ip netns exec "$ns0" nft list counter inet filter $cname
+ fi
+}
+
+check_lo_counters()
+{
+ local want="$1"
+ local verbose="$2"
+ local counter
+
+ for counter in iifcount iifnamecount iifgroupcount iiftypecount infproto4count \
+ oifcount oifnamecount oifgroupcount oiftypecount onfproto4count \
+ il4protocounter icurrentyearcounter ol4protocounter \
+ ; do
+ check_one_counter "$counter" "$want" "$verbose"
+ done
+}
+
+check_lo_counters "0" false
+ip netns exec "$ns0" ping -q -c 1 127.0.0.1 -m 42 > /dev/null
+
+check_lo_counters "2" true
+
+check_one_counter oskuidcounter "1" true
+check_one_counter oskgidcounter "1" true
+check_one_counter imarkcounter "1" true
+check_one_counter omarkcounter "1" true
+check_one_counter ilastyearcounter "0" true
+
+if [ $ret -eq 0 ];then
+ echo "OK: nftables meta iif/oif counters at expected values"
+else
+ exit $ret
+fi
+
+#First CPU execution and counter
+taskset -p 01 $$ > /dev/null
+ip netns exec "$ns0" nft reset counters > /dev/null
+ip netns exec "$ns0" ping -q -c 1 127.0.0.1 > /dev/null
+check_one_counter icpu0counter "2" true
+
+if [ $ret -eq 0 ];then
+ echo "OK: nftables meta cpu counter at expected values"
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/netfilter/nft_nat.sh b/tools/testing/selftests/netfilter/nft_nat.sh
new file mode 100755
index 000000000..67697d8ea
--- /dev/null
+++ b/tools/testing/selftests/netfilter/nft_nat.sh
@@ -0,0 +1,914 @@
+#!/bin/bash
+#
+# This test is for basic NAT functionality: snat, dnat, redirect, masquerade.
+#
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+ret=0
+test_inet_nat=true
+
+sfx=$(mktemp -u "XXXXXXXX")
+ns0="ns0-$sfx"
+ns1="ns1-$sfx"
+ns2="ns2-$sfx"
+
+cleanup()
+{
+ for i in 0 1 2; do ip netns del ns$i-"$sfx";done
+}
+
+nft --version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without nft tool"
+ exit $ksft_skip
+fi
+
+ip -Version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+
+ip netns add "$ns0"
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not create net namespace $ns0"
+ exit $ksft_skip
+fi
+
+trap cleanup EXIT
+
+ip netns add "$ns1"
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not create net namespace $ns1"
+ exit $ksft_skip
+fi
+
+ip netns add "$ns2"
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not create net namespace $ns2"
+ exit $ksft_skip
+fi
+
+ip link add veth0 netns "$ns0" type veth peer name eth0 netns "$ns1" > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: No virtual ethernet pair device support in kernel"
+ exit $ksft_skip
+fi
+ip link add veth1 netns "$ns0" type veth peer name eth0 netns "$ns2"
+
+ip -net "$ns0" link set lo up
+ip -net "$ns0" link set veth0 up
+ip -net "$ns0" addr add 10.0.1.1/24 dev veth0
+ip -net "$ns0" addr add dead:1::1/64 dev veth0
+
+ip -net "$ns0" link set veth1 up
+ip -net "$ns0" addr add 10.0.2.1/24 dev veth1
+ip -net "$ns0" addr add dead:2::1/64 dev veth1
+
+for i in 1 2; do
+ ip -net ns$i-$sfx link set lo up
+ ip -net ns$i-$sfx link set eth0 up
+ ip -net ns$i-$sfx addr add 10.0.$i.99/24 dev eth0
+ ip -net ns$i-$sfx route add default via 10.0.$i.1
+ ip -net ns$i-$sfx addr add dead:$i::99/64 dev eth0
+ ip -net ns$i-$sfx route add default via dead:$i::1
+done
+
+bad_counter()
+{
+ local ns=$1
+ local counter=$2
+ local expect=$3
+ local tag=$4
+
+ echo "ERROR: $counter counter in $ns has unexpected value (expected $expect) at $tag" 1>&2
+ ip netns exec $ns nft list counter inet filter $counter 1>&2
+}
+
+check_counters()
+{
+ ns=$1
+ local lret=0
+
+ cnt=$(ip netns exec $ns nft list counter inet filter ns0in | grep -q "packets 1 bytes 84")
+ if [ $? -ne 0 ]; then
+ bad_counter $ns ns0in "packets 1 bytes 84" "check_counters 1"
+ lret=1
+ fi
+ cnt=$(ip netns exec $ns nft list counter inet filter ns0out | grep -q "packets 1 bytes 84")
+ if [ $? -ne 0 ]; then
+ bad_counter $ns ns0out "packets 1 bytes 84" "check_counters 2"
+ lret=1
+ fi
+
+ expect="packets 1 bytes 104"
+ cnt=$(ip netns exec $ns nft list counter inet filter ns0in6 | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter $ns ns0in6 "$expect" "check_counters 3"
+ lret=1
+ fi
+ cnt=$(ip netns exec $ns nft list counter inet filter ns0out6 | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter $ns ns0out6 "$expect" "check_counters 4"
+ lret=1
+ fi
+
+ return $lret
+}
+
+check_ns0_counters()
+{
+ local ns=$1
+ local lret=0
+
+ cnt=$(ip netns exec "$ns0" nft list counter inet filter ns0in | grep -q "packets 0 bytes 0")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns0" ns0in "packets 0 bytes 0" "check_ns0_counters 1"
+ lret=1
+ fi
+
+ cnt=$(ip netns exec "$ns0" nft list counter inet filter ns0in6 | grep -q "packets 0 bytes 0")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns0" ns0in6 "packets 0 bytes 0"
+ lret=1
+ fi
+
+ cnt=$(ip netns exec "$ns0" nft list counter inet filter ns0out | grep -q "packets 0 bytes 0")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns0" ns0out "packets 0 bytes 0" "check_ns0_counters 2"
+ lret=1
+ fi
+ cnt=$(ip netns exec "$ns0" nft list counter inet filter ns0out6 | grep -q "packets 0 bytes 0")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns0" ns0out6 "packets 0 bytes 0" "check_ns0_counters3 "
+ lret=1
+ fi
+
+ for dir in "in" "out" ; do
+ expect="packets 1 bytes 84"
+ cnt=$(ip netns exec "$ns0" nft list counter inet filter ${ns}${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns0" $ns$dir "$expect" "check_ns0_counters 4"
+ lret=1
+ fi
+
+ expect="packets 1 bytes 104"
+ cnt=$(ip netns exec "$ns0" nft list counter inet filter ${ns}${dir}6 | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns0" $ns$dir6 "$expect" "check_ns0_counters 5"
+ lret=1
+ fi
+ done
+
+ return $lret
+}
+
+reset_counters()
+{
+ for i in 0 1 2;do
+ ip netns exec ns$i-$sfx nft reset counters inet > /dev/null
+ done
+}
+
+test_local_dnat6()
+{
+ local family=$1
+ local lret=0
+ local IPF=""
+
+ if [ $family = "inet" ];then
+ IPF="ip6"
+ fi
+
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table $family nat {
+ chain output {
+ type nat hook output priority 0; policy accept;
+ ip6 daddr dead:1::99 dnat $IPF to dead:2::99
+ }
+}
+EOF
+ if [ $? -ne 0 ]; then
+ echo "SKIP: Could not add add $family dnat hook"
+ return $ksft_skip
+ fi
+
+ # ping netns1, expect rewrite to netns2
+ ip netns exec "$ns0" ping -q -c 1 dead:1::99 > /dev/null
+ if [ $? -ne 0 ]; then
+ lret=1
+ echo "ERROR: ping6 failed"
+ return $lret
+ fi
+
+ expect="packets 0 bytes 0"
+ for dir in "in6" "out6" ; do
+ cnt=$(ip netns exec "$ns0" nft list counter inet filter ns1${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns0" ns1$dir "$expect" "test_local_dnat6 1"
+ lret=1
+ fi
+ done
+
+ expect="packets 1 bytes 104"
+ for dir in "in6" "out6" ; do
+ cnt=$(ip netns exec "$ns0" nft list counter inet filter ns2${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns0" ns2$dir "$expect" "test_local_dnat6 2"
+ lret=1
+ fi
+ done
+
+ # expect 0 count in ns1
+ expect="packets 0 bytes 0"
+ for dir in "in6" "out6" ; do
+ cnt=$(ip netns exec "$ns1" nft list counter inet filter ns0${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns1" ns0$dir "$expect" "test_local_dnat6 3"
+ lret=1
+ fi
+ done
+
+ # expect 1 packet in ns2
+ expect="packets 1 bytes 104"
+ for dir in "in6" "out6" ; do
+ cnt=$(ip netns exec "$ns2" nft list counter inet filter ns0${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns2" ns0$dir "$expect" "test_local_dnat6 4"
+ lret=1
+ fi
+ done
+
+ test $lret -eq 0 && echo "PASS: ipv6 ping to $ns1 was $family NATted to $ns2"
+ ip netns exec "$ns0" nft flush chain ip6 nat output
+
+ return $lret
+}
+
+test_local_dnat()
+{
+ local family=$1
+ local lret=0
+ local IPF=""
+
+ if [ $family = "inet" ];then
+ IPF="ip"
+ fi
+
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF 2>/dev/null
+table $family nat {
+ chain output {
+ type nat hook output priority 0; policy accept;
+ ip daddr 10.0.1.99 dnat $IPF to 10.0.2.99
+ }
+}
+EOF
+ if [ $? -ne 0 ]; then
+ if [ $family = "inet" ];then
+ echo "SKIP: inet nat tests"
+ test_inet_nat=false
+ return $ksft_skip
+ fi
+ echo "SKIP: Could not add add $family dnat hook"
+ return $ksft_skip
+ fi
+
+ # ping netns1, expect rewrite to netns2
+ ip netns exec "$ns0" ping -q -c 1 10.0.1.99 > /dev/null
+ if [ $? -ne 0 ]; then
+ lret=1
+ echo "ERROR: ping failed"
+ return $lret
+ fi
+
+ expect="packets 0 bytes 0"
+ for dir in "in" "out" ; do
+ cnt=$(ip netns exec "$ns0" nft list counter inet filter ns1${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns0" ns1$dir "$expect" "test_local_dnat 1"
+ lret=1
+ fi
+ done
+
+ expect="packets 1 bytes 84"
+ for dir in "in" "out" ; do
+ cnt=$(ip netns exec "$ns0" nft list counter inet filter ns2${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns0" ns2$dir "$expect" "test_local_dnat 2"
+ lret=1
+ fi
+ done
+
+ # expect 0 count in ns1
+ expect="packets 0 bytes 0"
+ for dir in "in" "out" ; do
+ cnt=$(ip netns exec "$ns1" nft list counter inet filter ns0${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns1" ns0$dir "$expect" "test_local_dnat 3"
+ lret=1
+ fi
+ done
+
+ # expect 1 packet in ns2
+ expect="packets 1 bytes 84"
+ for dir in "in" "out" ; do
+ cnt=$(ip netns exec "$ns2" nft list counter inet filter ns0${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns2" ns0$dir "$expect" "test_local_dnat 4"
+ lret=1
+ fi
+ done
+
+ test $lret -eq 0 && echo "PASS: ping to $ns1 was $family NATted to $ns2"
+
+ ip netns exec "$ns0" nft flush chain $family nat output
+
+ reset_counters
+ ip netns exec "$ns0" ping -q -c 1 10.0.1.99 > /dev/null
+ if [ $? -ne 0 ]; then
+ lret=1
+ echo "ERROR: ping failed"
+ return $lret
+ fi
+
+ expect="packets 1 bytes 84"
+ for dir in "in" "out" ; do
+ cnt=$(ip netns exec "$ns0" nft list counter inet filter ns1${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns1" ns1$dir "$expect" "test_local_dnat 5"
+ lret=1
+ fi
+ done
+ expect="packets 0 bytes 0"
+ for dir in "in" "out" ; do
+ cnt=$(ip netns exec "$ns0" nft list counter inet filter ns2${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns0" ns2$dir "$expect" "test_local_dnat 6"
+ lret=1
+ fi
+ done
+
+ # expect 1 count in ns1
+ expect="packets 1 bytes 84"
+ for dir in "in" "out" ; do
+ cnt=$(ip netns exec "$ns1" nft list counter inet filter ns0${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns0" ns0$dir "$expect" "test_local_dnat 7"
+ lret=1
+ fi
+ done
+
+ # expect 0 packet in ns2
+ expect="packets 0 bytes 0"
+ for dir in "in" "out" ; do
+ cnt=$(ip netns exec "$ns2" nft list counter inet filter ns0${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns2" ns0$dir "$expect" "test_local_dnat 8"
+ lret=1
+ fi
+ done
+
+ test $lret -eq 0 && echo "PASS: ping to $ns1 OK after $family nat output chain flush"
+
+ return $lret
+}
+
+test_local_dnat_portonly()
+{
+ local family=$1
+ local daddr=$2
+ local lret=0
+ local sr_s
+ local sr_r
+
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table $family nat {
+ chain output {
+ type nat hook output priority 0; policy accept;
+ meta l4proto tcp dnat to :2000
+
+ }
+}
+EOF
+ if [ $? -ne 0 ]; then
+ if [ $family = "inet" ];then
+ echo "SKIP: inet port test"
+ test_inet_nat=false
+ return
+ fi
+ echo "SKIP: Could not add $family dnat hook"
+ return
+ fi
+
+ echo SERVER-$family | ip netns exec "$ns1" timeout 5 socat -u STDIN TCP-LISTEN:2000 &
+ sc_s=$!
+
+ sleep 1
+
+ result=$(ip netns exec "$ns0" timeout 1 socat TCP:$daddr:2000 STDOUT)
+
+ if [ "$result" = "SERVER-inet" ];then
+ echo "PASS: inet port rewrite without l3 address"
+ else
+ echo "ERROR: inet port rewrite"
+ ret=1
+ fi
+}
+
+test_masquerade6()
+{
+ local family=$1
+ local natflags=$2
+ local lret=0
+
+ ip netns exec "$ns0" sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
+
+ ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null # ping ns2->ns1
+ if [ $? -ne 0 ] ; then
+ echo "ERROR: cannot ping $ns1 from $ns2 via ipv6"
+ return 1
+ lret=1
+ fi
+
+ expect="packets 1 bytes 104"
+ for dir in "in6" "out6" ; do
+ cnt=$(ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns1" ns2$dir "$expect" "test_masquerade6 1"
+ lret=1
+ fi
+
+ cnt=$(ip netns exec "$ns2" nft list counter inet filter ns1${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns2" ns1$dir "$expect" "test_masquerade6 2"
+ lret=1
+ fi
+ done
+
+ reset_counters
+
+# add masquerading rule
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table $family nat {
+ chain postrouting {
+ type nat hook postrouting priority 0; policy accept;
+ meta oif veth0 masquerade $natflags
+ }
+}
+EOF
+ if [ $? -ne 0 ]; then
+ echo "SKIP: Could not add add $family masquerade hook"
+ return $ksft_skip
+ fi
+
+ ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null # ping ns2->ns1
+ if [ $? -ne 0 ] ; then
+ echo "ERROR: cannot ping $ns1 from $ns2 with active $family masquerade $natflags"
+ lret=1
+ fi
+
+ # ns1 should have seen packets from ns0, due to masquerade
+ expect="packets 1 bytes 104"
+ for dir in "in6" "out6" ; do
+ cnt=$(ip netns exec "$ns1" nft list counter inet filter ns0${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns1" ns0$dir "$expect" "test_masquerade6 3"
+ lret=1
+ fi
+
+ cnt=$(ip netns exec "$ns2" nft list counter inet filter ns1${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns2" ns1$dir "$expect" "test_masquerade6 4"
+ lret=1
+ fi
+ done
+
+ # ns1 should not have seen packets from ns2, due to masquerade
+ expect="packets 0 bytes 0"
+ for dir in "in6" "out6" ; do
+ cnt=$(ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns1" ns0$dir "$expect" "test_masquerade6 5"
+ lret=1
+ fi
+
+ cnt=$(ip netns exec "$ns0" nft list counter inet filter ns1${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns0" ns1$dir "$expect" "test_masquerade6 6"
+ lret=1
+ fi
+ done
+
+ ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null # ping ns2->ns1
+ if [ $? -ne 0 ] ; then
+ echo "ERROR: cannot ping $ns1 from $ns2 with active ipv6 masquerade $natflags (attempt 2)"
+ lret=1
+ fi
+
+ ip netns exec "$ns0" nft flush chain $family nat postrouting
+ if [ $? -ne 0 ]; then
+ echo "ERROR: Could not flush $family nat postrouting" 1>&2
+ lret=1
+ fi
+
+ test $lret -eq 0 && echo "PASS: $family IPv6 masquerade $natflags for $ns2"
+
+ return $lret
+}
+
+test_masquerade()
+{
+ local family=$1
+ local natflags=$2
+ local lret=0
+
+ ip netns exec "$ns0" sysctl net.ipv4.conf.veth0.forwarding=1 > /dev/null
+ ip netns exec "$ns0" sysctl net.ipv4.conf.veth1.forwarding=1 > /dev/null
+
+ ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null # ping ns2->ns1
+ if [ $? -ne 0 ] ; then
+ echo "ERROR: cannot ping $ns1 from "$ns2" $natflags"
+ lret=1
+ fi
+
+ expect="packets 1 bytes 84"
+ for dir in "in" "out" ; do
+ cnt=$(ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns1" ns2$dir "$expect" "test_masquerade 1"
+ lret=1
+ fi
+
+ cnt=$(ip netns exec "$ns2" nft list counter inet filter ns1${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns2" ns1$dir "$expect" "test_masquerade 2"
+ lret=1
+ fi
+ done
+
+ reset_counters
+
+# add masquerading rule
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table $family nat {
+ chain postrouting {
+ type nat hook postrouting priority 0; policy accept;
+ meta oif veth0 masquerade $natflags
+ }
+}
+EOF
+ if [ $? -ne 0 ]; then
+ echo "SKIP: Could not add add $family masquerade hook"
+ return $ksft_skip
+ fi
+
+ ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null # ping ns2->ns1
+ if [ $? -ne 0 ] ; then
+ echo "ERROR: cannot ping $ns1 from $ns2 with active $family masquerade $natflags"
+ lret=1
+ fi
+
+ # ns1 should have seen packets from ns0, due to masquerade
+ expect="packets 1 bytes 84"
+ for dir in "in" "out" ; do
+ cnt=$(ip netns exec "$ns1" nft list counter inet filter ns0${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns1" ns0$dir "$expect" "test_masquerade 3"
+ lret=1
+ fi
+
+ cnt=$(ip netns exec "$ns2" nft list counter inet filter ns1${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns2" ns1$dir "$expect" "test_masquerade 4"
+ lret=1
+ fi
+ done
+
+ # ns1 should not have seen packets from ns2, due to masquerade
+ expect="packets 0 bytes 0"
+ for dir in "in" "out" ; do
+ cnt=$(ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns1" ns0$dir "$expect" "test_masquerade 5"
+ lret=1
+ fi
+
+ cnt=$(ip netns exec "$ns0" nft list counter inet filter ns1${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns0" ns1$dir "$expect" "test_masquerade 6"
+ lret=1
+ fi
+ done
+
+ ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null # ping ns2->ns1
+ if [ $? -ne 0 ] ; then
+ echo "ERROR: cannot ping $ns1 from $ns2 with active ip masquerade $natflags (attempt 2)"
+ lret=1
+ fi
+
+ ip netns exec "$ns0" nft flush chain $family nat postrouting
+ if [ $? -ne 0 ]; then
+ echo "ERROR: Could not flush $family nat postrouting" 1>&2
+ lret=1
+ fi
+
+ test $lret -eq 0 && echo "PASS: $family IP masquerade $natflags for $ns2"
+
+ return $lret
+}
+
+test_redirect6()
+{
+ local family=$1
+ local lret=0
+
+ ip netns exec "$ns0" sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
+
+ ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null # ping ns2->ns1
+ if [ $? -ne 0 ] ; then
+ echo "ERROR: cannnot ping $ns1 from $ns2 via ipv6"
+ lret=1
+ fi
+
+ expect="packets 1 bytes 104"
+ for dir in "in6" "out6" ; do
+ cnt=$(ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns1" ns2$dir "$expect" "test_redirect6 1"
+ lret=1
+ fi
+
+ cnt=$(ip netns exec "$ns2" nft list counter inet filter ns1${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns2" ns1$dir "$expect" "test_redirect6 2"
+ lret=1
+ fi
+ done
+
+ reset_counters
+
+# add redirect rule
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table $family nat {
+ chain prerouting {
+ type nat hook prerouting priority 0; policy accept;
+ meta iif veth1 meta l4proto icmpv6 ip6 saddr dead:2::99 ip6 daddr dead:1::99 redirect
+ }
+}
+EOF
+ if [ $? -ne 0 ]; then
+ echo "SKIP: Could not add add $family redirect hook"
+ return $ksft_skip
+ fi
+
+ ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null # ping ns2->ns1
+ if [ $? -ne 0 ] ; then
+ echo "ERROR: cannot ping $ns1 from $ns2 via ipv6 with active $family redirect"
+ lret=1
+ fi
+
+ # ns1 should have seen no packets from ns2, due to redirection
+ expect="packets 0 bytes 0"
+ for dir in "in6" "out6" ; do
+ cnt=$(ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns1" ns0$dir "$expect" "test_redirect6 3"
+ lret=1
+ fi
+ done
+
+ # ns0 should have seen packets from ns2, due to masquerade
+ expect="packets 1 bytes 104"
+ for dir in "in6" "out6" ; do
+ cnt=$(ip netns exec "$ns0" nft list counter inet filter ns2${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns1" ns0$dir "$expect" "test_redirect6 4"
+ lret=1
+ fi
+ done
+
+ ip netns exec "$ns0" nft delete table $family nat
+ if [ $? -ne 0 ]; then
+ echo "ERROR: Could not delete $family nat table" 1>&2
+ lret=1
+ fi
+
+ test $lret -eq 0 && echo "PASS: $family IPv6 redirection for $ns2"
+
+ return $lret
+}
+
+test_redirect()
+{
+ local family=$1
+ local lret=0
+
+ ip netns exec "$ns0" sysctl net.ipv4.conf.veth0.forwarding=1 > /dev/null
+ ip netns exec "$ns0" sysctl net.ipv4.conf.veth1.forwarding=1 > /dev/null
+
+ ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null # ping ns2->ns1
+ if [ $? -ne 0 ] ; then
+ echo "ERROR: cannot ping $ns1 from $ns2"
+ lret=1
+ fi
+
+ expect="packets 1 bytes 84"
+ for dir in "in" "out" ; do
+ cnt=$(ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns1" $ns2$dir "$expect" "test_redirect 1"
+ lret=1
+ fi
+
+ cnt=$(ip netns exec "$ns2" nft list counter inet filter ns1${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns2" ns1$dir "$expect" "test_redirect 2"
+ lret=1
+ fi
+ done
+
+ reset_counters
+
+# add redirect rule
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table $family nat {
+ chain prerouting {
+ type nat hook prerouting priority 0; policy accept;
+ meta iif veth1 ip protocol icmp ip saddr 10.0.2.99 ip daddr 10.0.1.99 redirect
+ }
+}
+EOF
+ if [ $? -ne 0 ]; then
+ echo "SKIP: Could not add add $family redirect hook"
+ return $ksft_skip
+ fi
+
+ ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null # ping ns2->ns1
+ if [ $? -ne 0 ] ; then
+ echo "ERROR: cannot ping $ns1 from $ns2 with active $family ip redirect"
+ lret=1
+ fi
+
+ # ns1 should have seen no packets from ns2, due to redirection
+ expect="packets 0 bytes 0"
+ for dir in "in" "out" ; do
+
+ cnt=$(ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns1" ns0$dir "$expect" "test_redirect 3"
+ lret=1
+ fi
+ done
+
+ # ns0 should have seen packets from ns2, due to masquerade
+ expect="packets 1 bytes 84"
+ for dir in "in" "out" ; do
+ cnt=$(ip netns exec "$ns0" nft list counter inet filter ns2${dir} | grep -q "$expect")
+ if [ $? -ne 0 ]; then
+ bad_counter "$ns0" ns0$dir "$expect" "test_redirect 4"
+ lret=1
+ fi
+ done
+
+ ip netns exec "$ns0" nft delete table $family nat
+ if [ $? -ne 0 ]; then
+ echo "ERROR: Could not delete $family nat table" 1>&2
+ lret=1
+ fi
+
+ test $lret -eq 0 && echo "PASS: $family IP redirection for $ns2"
+
+ return $lret
+}
+
+
+# ip netns exec "$ns0" ping -c 1 -q 10.0.$i.99
+for i in 0 1 2; do
+ip netns exec ns$i-$sfx nft -f /dev/stdin <<EOF
+table inet filter {
+ counter ns0in {}
+ counter ns1in {}
+ counter ns2in {}
+
+ counter ns0out {}
+ counter ns1out {}
+ counter ns2out {}
+
+ counter ns0in6 {}
+ counter ns1in6 {}
+ counter ns2in6 {}
+
+ counter ns0out6 {}
+ counter ns1out6 {}
+ counter ns2out6 {}
+
+ map nsincounter {
+ type ipv4_addr : counter
+ elements = { 10.0.1.1 : "ns0in",
+ 10.0.2.1 : "ns0in",
+ 10.0.1.99 : "ns1in",
+ 10.0.2.99 : "ns2in" }
+ }
+
+ map nsincounter6 {
+ type ipv6_addr : counter
+ elements = { dead:1::1 : "ns0in6",
+ dead:2::1 : "ns0in6",
+ dead:1::99 : "ns1in6",
+ dead:2::99 : "ns2in6" }
+ }
+
+ map nsoutcounter {
+ type ipv4_addr : counter
+ elements = { 10.0.1.1 : "ns0out",
+ 10.0.2.1 : "ns0out",
+ 10.0.1.99: "ns1out",
+ 10.0.2.99: "ns2out" }
+ }
+
+ map nsoutcounter6 {
+ type ipv6_addr : counter
+ elements = { dead:1::1 : "ns0out6",
+ dead:2::1 : "ns0out6",
+ dead:1::99 : "ns1out6",
+ dead:2::99 : "ns2out6" }
+ }
+
+ chain input {
+ type filter hook input priority 0; policy accept;
+ counter name ip saddr map @nsincounter
+ icmpv6 type { "echo-request", "echo-reply" } counter name ip6 saddr map @nsincounter6
+ }
+ chain output {
+ type filter hook output priority 0; policy accept;
+ counter name ip daddr map @nsoutcounter
+ icmpv6 type { "echo-request", "echo-reply" } counter name ip6 daddr map @nsoutcounter6
+ }
+}
+EOF
+done
+
+sleep 3
+# test basic connectivity
+for i in 1 2; do
+ ip netns exec "$ns0" ping -c 1 -q 10.0.$i.99 > /dev/null
+ if [ $? -ne 0 ];then
+ echo "ERROR: Could not reach other namespace(s)" 1>&2
+ ret=1
+ fi
+
+ ip netns exec "$ns0" ping -c 1 -q dead:$i::99 > /dev/null
+ if [ $? -ne 0 ];then
+ echo "ERROR: Could not reach other namespace(s) via ipv6" 1>&2
+ ret=1
+ fi
+ check_counters ns$i-$sfx
+ if [ $? -ne 0 ]; then
+ ret=1
+ fi
+
+ check_ns0_counters ns$i
+ if [ $? -ne 0 ]; then
+ ret=1
+ fi
+ reset_counters
+done
+
+if [ $ret -eq 0 ];then
+ echo "PASS: netns routing/connectivity: $ns0 can reach $ns1 and $ns2"
+fi
+
+reset_counters
+test_local_dnat ip
+test_local_dnat6 ip6
+
+reset_counters
+test_local_dnat_portonly inet 10.0.1.99
+
+reset_counters
+$test_inet_nat && test_local_dnat inet
+$test_inet_nat && test_local_dnat6 inet
+
+for flags in "" "fully-random"; do
+reset_counters
+test_masquerade ip $flags
+test_masquerade6 ip6 $flags
+reset_counters
+$test_inet_nat && test_masquerade inet $flags
+$test_inet_nat && test_masquerade6 inet $flags
+done
+
+reset_counters
+test_redirect ip
+test_redirect6 ip6
+reset_counters
+$test_inet_nat && test_redirect inet
+$test_inet_nat && test_redirect6 inet
+
+if [ $ret -ne 0 ];then
+ echo -n "FAIL: "
+ nft --version
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/netfilter/nft_queue.sh b/tools/testing/selftests/netfilter/nft_queue.sh
new file mode 100755
index 000000000..3d202b90b
--- /dev/null
+++ b/tools/testing/selftests/netfilter/nft_queue.sh
@@ -0,0 +1,376 @@
+#!/bin/bash
+#
+# This tests nf_queue:
+# 1. can process packets from all hooks
+# 2. support running nfqueue from more than one base chain
+#
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+ret=0
+
+sfx=$(mktemp -u "XXXXXXXX")
+ns1="ns1-$sfx"
+ns2="ns2-$sfx"
+nsrouter="nsrouter-$sfx"
+timeout=4
+
+cleanup()
+{
+ ip netns del ${ns1}
+ ip netns del ${ns2}
+ ip netns del ${nsrouter}
+ rm -f "$TMPFILE0"
+ rm -f "$TMPFILE1"
+ rm -f "$TMPFILE2" "$TMPFILE3"
+}
+
+nft --version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without nft tool"
+ exit $ksft_skip
+fi
+
+ip -Version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+
+ip netns add ${nsrouter}
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not create net namespace"
+ exit $ksft_skip
+fi
+
+TMPFILE0=$(mktemp)
+TMPFILE1=$(mktemp)
+TMPFILE2=$(mktemp)
+TMPFILE3=$(mktemp)
+trap cleanup EXIT
+
+ip netns add ${ns1}
+ip netns add ${ns2}
+
+ip link add veth0 netns ${nsrouter} type veth peer name eth0 netns ${ns1} > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: No virtual ethernet pair device support in kernel"
+ exit $ksft_skip
+fi
+ip link add veth1 netns ${nsrouter} type veth peer name eth0 netns ${ns2}
+
+ip -net ${nsrouter} link set lo up
+ip -net ${nsrouter} link set veth0 up
+ip -net ${nsrouter} addr add 10.0.1.1/24 dev veth0
+ip -net ${nsrouter} addr add dead:1::1/64 dev veth0
+
+ip -net ${nsrouter} link set veth1 up
+ip -net ${nsrouter} addr add 10.0.2.1/24 dev veth1
+ip -net ${nsrouter} addr add dead:2::1/64 dev veth1
+
+ip -net ${ns1} link set lo up
+ip -net ${ns1} link set eth0 up
+
+ip -net ${ns2} link set lo up
+ip -net ${ns2} link set eth0 up
+
+ip -net ${ns1} addr add 10.0.1.99/24 dev eth0
+ip -net ${ns1} addr add dead:1::99/64 dev eth0
+ip -net ${ns1} route add default via 10.0.1.1
+ip -net ${ns1} route add default via dead:1::1
+
+ip -net ${ns2} addr add 10.0.2.99/24 dev eth0
+ip -net ${ns2} addr add dead:2::99/64 dev eth0
+ip -net ${ns2} route add default via 10.0.2.1
+ip -net ${ns2} route add default via dead:2::1
+
+load_ruleset() {
+ local name=$1
+ local prio=$2
+
+ip netns exec ${nsrouter} nft -f /dev/stdin <<EOF
+table inet $name {
+ chain nfq {
+ ip protocol icmp queue bypass
+ icmpv6 type { "echo-request", "echo-reply" } queue num 1 bypass
+ }
+ chain pre {
+ type filter hook prerouting priority $prio; policy accept;
+ jump nfq
+ }
+ chain input {
+ type filter hook input priority $prio; policy accept;
+ jump nfq
+ }
+ chain forward {
+ type filter hook forward priority $prio; policy accept;
+ tcp dport 12345 queue num 2
+ jump nfq
+ }
+ chain output {
+ type filter hook output priority $prio; policy accept;
+ tcp dport 12345 queue num 3
+ jump nfq
+ }
+ chain post {
+ type filter hook postrouting priority $prio; policy accept;
+ jump nfq
+ }
+}
+EOF
+}
+
+load_counter_ruleset() {
+ local prio=$1
+
+ip netns exec ${nsrouter} nft -f /dev/stdin <<EOF
+table inet countrules {
+ chain pre {
+ type filter hook prerouting priority $prio; policy accept;
+ counter
+ }
+ chain input {
+ type filter hook input priority $prio; policy accept;
+ counter
+ }
+ chain forward {
+ type filter hook forward priority $prio; policy accept;
+ counter
+ }
+ chain output {
+ type filter hook output priority $prio; policy accept;
+ counter
+ }
+ chain post {
+ type filter hook postrouting priority $prio; policy accept;
+ counter
+ }
+}
+EOF
+}
+
+test_ping() {
+ ip netns exec ${ns1} ping -c 1 -q 10.0.2.99 > /dev/null
+ if [ $? -ne 0 ];then
+ return 1
+ fi
+
+ ip netns exec ${ns1} ping -c 1 -q dead:2::99 > /dev/null
+ if [ $? -ne 0 ];then
+ return 1
+ fi
+
+ return 0
+}
+
+test_ping_router() {
+ ip netns exec ${ns1} ping -c 1 -q 10.0.2.1 > /dev/null
+ if [ $? -ne 0 ];then
+ return 1
+ fi
+
+ ip netns exec ${ns1} ping -c 1 -q dead:2::1 > /dev/null
+ if [ $? -ne 0 ];then
+ return 1
+ fi
+
+ return 0
+}
+
+test_queue_blackhole() {
+ local proto=$1
+
+ip netns exec ${nsrouter} nft -f /dev/stdin <<EOF
+table $proto blackh {
+ chain forward {
+ type filter hook forward priority 0; policy accept;
+ queue num 600
+ }
+}
+EOF
+ if [ $proto = "ip" ] ;then
+ ip netns exec ${ns1} ping -W 2 -c 1 -q 10.0.2.99 > /dev/null
+ lret=$?
+ elif [ $proto = "ip6" ]; then
+ ip netns exec ${ns1} ping -W 2 -c 1 -q dead:2::99 > /dev/null
+ lret=$?
+ else
+ lret=111
+ fi
+
+ # queue without bypass keyword should drop traffic if no listener exists.
+ if [ $lret -eq 0 ];then
+ echo "FAIL: $proto expected failure, got $lret" 1>&2
+ exit 1
+ fi
+
+ ip netns exec ${nsrouter} nft delete table $proto blackh
+ if [ $? -ne 0 ] ;then
+ echo "FAIL: $proto: Could not delete blackh table"
+ exit 1
+ fi
+
+ echo "PASS: $proto: statement with no listener results in packet drop"
+}
+
+test_queue()
+{
+ local expected=$1
+ local last=""
+
+ # spawn nf-queue listeners
+ ip netns exec ${nsrouter} ./nf-queue -c -q 0 -t $timeout > "$TMPFILE0" &
+ ip netns exec ${nsrouter} ./nf-queue -c -q 1 -t $timeout > "$TMPFILE1" &
+ sleep 1
+ test_ping
+ ret=$?
+ if [ $ret -ne 0 ];then
+ echo "FAIL: netns routing/connectivity with active listener on queue $queue: $ret" 1>&2
+ exit $ret
+ fi
+
+ test_ping_router
+ ret=$?
+ if [ $ret -ne 0 ];then
+ echo "FAIL: netns router unreachable listener on queue $queue: $ret" 1>&2
+ exit $ret
+ fi
+
+ wait
+ ret=$?
+
+ for file in $TMPFILE0 $TMPFILE1; do
+ last=$(tail -n1 "$file")
+ if [ x"$last" != x"$expected packets total" ]; then
+ echo "FAIL: Expected $expected packets total, but got $last" 1>&2
+ cat "$file" 1>&2
+
+ ip netns exec ${nsrouter} nft list ruleset
+ exit 1
+ fi
+ done
+
+ echo "PASS: Expected and received $last"
+}
+
+test_tcp_forward()
+{
+ ip netns exec ${nsrouter} ./nf-queue -q 2 -t $timeout &
+ local nfqpid=$!
+
+ tmpfile=$(mktemp) || exit 1
+ dd conv=sparse status=none if=/dev/zero bs=1M count=200 of=$tmpfile
+ ip netns exec ${ns2} nc -w 5 -l -p 12345 <"$tmpfile" >/dev/null &
+ local rpid=$!
+
+ sleep 1
+ ip netns exec ${ns1} nc -w 5 10.0.2.99 12345 <"$tmpfile" >/dev/null &
+
+ rm -f "$tmpfile"
+
+ wait $rpid
+ wait $lpid
+ [ $? -eq 0 ] && echo "PASS: tcp and nfqueue in forward chain"
+}
+
+test_tcp_localhost()
+{
+ tmpfile=$(mktemp) || exit 1
+
+ dd conv=sparse status=none if=/dev/zero bs=1M count=200 of=$tmpfile
+ ip netns exec ${nsrouter} nc -w 5 -l -p 12345 <"$tmpfile" >/dev/null &
+ local rpid=$!
+
+ ip netns exec ${nsrouter} ./nf-queue -q 3 -t $timeout &
+ local nfqpid=$!
+
+ sleep 1
+ ip netns exec ${nsrouter} nc -w 5 127.0.0.1 12345 <"$tmpfile" > /dev/null
+ rm -f "$tmpfile"
+
+ wait $rpid
+ [ $? -eq 0 ] && echo "PASS: tcp via loopback"
+ wait 2>/dev/null
+}
+
+test_tcp_localhost_requeue()
+{
+ip netns exec ${nsrouter} nft -f /dev/stdin <<EOF
+flush ruleset
+table inet filter {
+ chain output {
+ type filter hook output priority 0; policy accept;
+ tcp dport 12345 limit rate 1/second burst 1 packets counter queue num 0
+ }
+ chain post {
+ type filter hook postrouting priority 0; policy accept;
+ tcp dport 12345 limit rate 1/second burst 1 packets counter queue num 0
+ }
+}
+EOF
+ tmpfile=$(mktemp) || exit 1
+ dd conv=sparse status=none if=/dev/zero bs=1M count=200 of=$tmpfile
+ ip netns exec ${nsrouter} nc -w 5 -l -p 12345 <"$tmpfile" >/dev/null &
+ local rpid=$!
+
+ ip netns exec ${nsrouter} ./nf-queue -c -q 1 -t $timeout > "$TMPFILE2" &
+
+ # nfqueue 1 will be called via output hook. But this time,
+ # re-queue the packet to nfqueue program on queue 2.
+ ip netns exec ${nsrouter} ./nf-queue -G -d 150 -c -q 0 -Q 1 -t $timeout > "$TMPFILE3" &
+
+ sleep 1
+ ip netns exec ${nsrouter} nc -w 5 127.0.0.1 12345 <"$tmpfile" > /dev/null
+ rm -f "$tmpfile"
+
+ wait
+
+ if ! diff -u "$TMPFILE2" "$TMPFILE3" ; then
+ echo "FAIL: lost packets during requeue?!" 1>&2
+ return
+ fi
+
+ echo "PASS: tcp via loopback and re-queueing"
+}
+
+ip netns exec ${nsrouter} sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
+ip netns exec ${nsrouter} sysctl net.ipv4.conf.veth0.forwarding=1 > /dev/null
+ip netns exec ${nsrouter} sysctl net.ipv4.conf.veth1.forwarding=1 > /dev/null
+
+load_ruleset "filter" 0
+
+sleep 3
+
+test_ping
+ret=$?
+if [ $ret -eq 0 ];then
+ # queue bypass works (rules were skipped, no listener)
+ echo "PASS: ${ns1} can reach ${ns2}"
+else
+ echo "FAIL: ${ns1} cannot reach ${ns2}: $ret" 1>&2
+ exit $ret
+fi
+
+test_queue_blackhole ip
+test_queue_blackhole ip6
+
+# dummy ruleset to add base chains between the
+# queueing rules. We don't want the second reinject
+# to re-execute the old hooks.
+load_counter_ruleset 10
+
+# we are hooking all: prerouting/input/forward/output/postrouting.
+# we ping ${ns2} from ${ns1} via ${nsrouter} using ipv4 and ipv6, so:
+# 1x icmp prerouting,forward,postrouting -> 3 queue events (6 incl. reply).
+# 1x icmp prerouting,input,output postrouting -> 4 queue events incl. reply.
+# so we expect that userspace program receives 10 packets.
+test_queue 10
+
+# same. We queue to a second program as well.
+load_ruleset "filter2" 20
+test_queue 20
+
+test_tcp_forward
+test_tcp_localhost
+test_tcp_localhost_requeue
+
+exit $ret
diff --git a/tools/testing/selftests/netfilter/nft_trans_stress.sh b/tools/testing/selftests/netfilter/nft_trans_stress.sh
new file mode 100755
index 000000000..f1affd12c
--- /dev/null
+++ b/tools/testing/selftests/netfilter/nft_trans_stress.sh
@@ -0,0 +1,78 @@
+#!/bin/bash
+#
+# This test is for stress-testing the nf_tables config plane path vs.
+# packet path processing: Make sure we never release rules that are
+# still visible to other cpus.
+#
+# set -e
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+testns=testns1
+tables="foo bar baz quux"
+
+nft --version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without nft tool"
+ exit $ksft_skip
+fi
+
+ip -Version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+
+tmp=$(mktemp)
+
+for table in $tables; do
+ echo add table inet "$table" >> "$tmp"
+ echo flush table inet "$table" >> "$tmp"
+
+ echo "add chain inet $table INPUT { type filter hook input priority 0; }" >> "$tmp"
+ echo "add chain inet $table OUTPUT { type filter hook output priority 0; }" >> "$tmp"
+ for c in $(seq 1 400); do
+ chain=$(printf "chain%03u" "$c")
+ echo "add chain inet $table $chain" >> "$tmp"
+ done
+
+ for c in $(seq 1 400); do
+ chain=$(printf "chain%03u" "$c")
+ for BASE in INPUT OUTPUT; do
+ echo "add rule inet $table $BASE counter jump $chain" >> "$tmp"
+ done
+ echo "add rule inet $table $chain counter return" >> "$tmp"
+ done
+done
+
+ip netns add "$testns"
+ip -netns "$testns" link set lo up
+
+lscpu | grep ^CPU\(s\): | ( read cpu cpunum ;
+cpunum=$((cpunum-1))
+for i in $(seq 0 $cpunum);do
+ mask=$(printf 0x%x $((1<<$i)))
+ ip netns exec "$testns" taskset $mask ping -4 127.0.0.1 -fq > /dev/null &
+ ip netns exec "$testns" taskset $mask ping -6 ::1 -fq > /dev/null &
+done)
+
+sleep 1
+
+for i in $(seq 1 10) ; do ip netns exec "$testns" nft -f "$tmp" & done
+
+for table in $tables;do
+ randsleep=$((RANDOM%10))
+ sleep $randsleep
+ ip netns exec "$testns" nft delete table inet $table 2>/dev/null
+done
+
+randsleep=$((RANDOM%10))
+sleep $randsleep
+
+pkill -9 ping
+
+wait
+
+rm -f "$tmp"
+ip netns del "$testns"