#!/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" 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 ${pfx} 2>/dev/null) check_output "${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 $? 0 "Get nexthop by id" check_nexthop "id 52" "id 52 via 2001:db8:91::2 dev veth1 scope link" run_cmd "$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 $? 2 "Nexthop group can not have a blackhole and another nexthop" } ipv6_fcnal_runtime() { local rc echo echo "IPv6 functional runtime" echo "-----------------------" sleep 5 # # IPv6 - the basics # run_cmd "$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 $? 0 "IPv6 route with device only nexthop" check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 85 dev veth1 metric 1024 pref medium" run_cmd "$IP nexthop add id 123 group 81/85" run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 123" log_test $? 0 "IPv6 multipath route with nexthop mix - dev only + gw" check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 123 metric 1024 nexthop via 2001:db8:91::2 dev veth1 weight 1 nexthop dev veth1 weight 1 pref medium" # # IPv6 route with v4 nexthop - not allowed # run_cmd "$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 $? 0 "Get nexthop by id" check_nexthop "id 12" "id 12 via 172.16.1.2 dev veth1 scope link" run_cmd "$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 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 $? 0 "Ping - multipath" # # IPv4 with blackhole nexthops # run_cmd "$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" $IP neigh sh | grep 'dev veth1' fi # # MPLS as an example of LWT encap # run_cmd "$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