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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/testing/selftests/net/fib_nexthops.sh | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/testing/selftests/net/fib_nexthops.sh')
-rwxr-xr-x | tools/testing/selftests/net/fib_nexthops.sh | 1696 |
1 files changed, 1696 insertions, 0 deletions
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 |