From 6345266a9989287336ff6a2843cd3b033cda85a1 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Thu, 30 May 2019 12:06:36 -0700 Subject: [PATCH] selftests: Add test cases for nexthop objects Add functional test cases for nexthop objects. Signed-off-by: David Ahern Signed-off-by: David S. Miller --- tools/testing/selftests/net/fib_nexthops.sh | 1026 +++++++++++++++++++ 1 file changed, 1026 insertions(+) create mode 100755 tools/testing/selftests/net/fib_nexthops.sh diff --git a/tools/testing/selftests/net/fib_nexthops.sh b/tools/testing/selftests/net/fib_nexthops.sh new file mode 100755 index 0000000000000..c5c93d5fb3ade --- /dev/null +++ b/tools/testing/selftests/net/fib_nexthops.sh @@ -0,0 +1,1026 @@ +#!/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" +IPV6_TESTS="ipv6_fcnal ipv6_grp_fcnal ipv6_fcnal_runtime" + +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" + 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 + + $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 + + $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 + + $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 + + 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 addr add dev veth5 2001:db8:101::1/64 + 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 addr add dev veth6 2001:db8:101::2/64 + 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" + 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 ${pfx} 2>/dev/null) + + check_output "${out}" "${expected}" +} + +################################################################################ +# basic operations (add, delete, replace) on nexthops and nexthop groups +# +# IPv6 + +ipv6_fcnal() +{ + local rc + + echo + echo "IPv6" + echo "----------------------" + + run_cmd "$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 $? 0 "Get nexthop by id" + check_nexthop "id 52" "id 52 via 2001:db8:91::2 dev veth1" + + run_cmd "$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 $? 2 "Nexthop group can not have a blackhole and another nexthop" +} + +ipv6_fcnal_runtime() +{ + local rc + + echo + echo "IPv6 functional runtime" + echo "-----------------------" + + sleep 5 + + # + # IPv6 - the basics + # + run_cmd "$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 $? 0 "IPv6 route with device only nexthop" + check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 85 dev veth1" + + run_cmd "$IP nexthop add id 123 group 81/85" + run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 123" + log_test $? 0 "IPv6 multipath route with nexthop mix - dev only + gw" + check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 85 nexthop via 2001:db8:91::2 dev veth1 nexthop dev veth1" + + # + # IPv6 route with v4 nexthop - not allowed + # + run_cmd "$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" + + $IP nexthop flush >/dev/null 2>&1 + + # + # weird IPv6 cases + # + run_cmd "$IP nexthop add id 86 via 2001:db8:91::2 dev veth1" + run_cmd "$IP ro add 2001:db8:101::1/128 nhid 81" + + # TO-DO: + # existing route with old nexthop; append route with new nexthop + # existing route with old nexthop; replace route with new + # existing route with new nexthop; replace route with old + # route with src address and using nexthop - not allowed +} + +ipv4_fcnal() +{ + local rc + + echo + echo "IPv4 functional" + echo "----------------------" + + # + # basic IPv4 ops - add, get, delete + # + run_cmd "$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 $? 0 "Get nexthop by id" + check_nexthop "id 12" "id 12 via 172.16.1.2 src 172.16.1.1 dev veth1 scope link" + + run_cmd "$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 $? 0 "Nexthops removed on admin down" +} + +ipv4_grp_fcnal() +{ + local rc + + echo + echo "IPv4 groups functional" + echo "----------------------" + + # basic functionality: create a nexthop group, default weight + run_cmd "$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 ${lladdr} dev veth1" + + set -e + run_cmd "$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 ${lladdr} dev veth1 weight 1 nexthop via 172.16.1.2 dev veth1 weight 1" + + run_cmd "$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 ${lladdr} dev veth1" + + run_cmd "$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 $? 0 "Ping - multipath" + + # + # IPv4 with blackhole nexthops + # + run_cmd "$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 122 group 21/85" + run_cmd "$IP ro replace 172.16.101.1/32 nhid 122" + log_test $? 0 "IPv4 multipath route with nexthop mix - dev only + gw" + check_route "172.16.101.1" "172.16.101.1 nhid 85 nexthop via 172.16.1.2 dev veth1 nexthop dev veth1" + + # + # IPv4 with IPv6 + # + set -e + lladdr=$(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 ${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" + $IP neigh sh | grep 'dev veth1' + fi + + # + # MPLS as an example of LWT encap + # + run_cmd "$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 $? 0 "IPv4 route with MPLS encap, v6 gw - check" +} + +basic() +{ + echo + echo "Basic functional tests" + echo "----------------------" + run_cmd "$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 $? 2 "Nexthop group and device" + + run_cmd "$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 < 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 -- 2.39.5