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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
| commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
| tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/testing/selftests/net | |
| parent | Initial commit. (diff) | |
| download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip | |
Adding upstream version 5.10.209.upstream/5.10.209
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/testing/selftests/net')
173 files changed, 55747 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 = ð + 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 |