2 # SPDX-License-Identifier: GPL-2.0
4 # ns: me | ns: peer | ns: remote
5 # 2001:db8:91::1 | 2001:db8:91::2 |
6 # 172.16.1.1 | 172.16.1.2 |
7 # veth1 <---|---> veth2 |
8 # | veth5 <--|--> veth6 172.16.101.1
9 # veth3 <---|---> veth4 | 2001:db8:101::1
10 # 172.16.2.1 | 172.16.2.2 |
11 # 2001:db8:92::1 | 2001:db8:92::2 |
13 # This test is for checking IPv4 and IPv6 FIB behavior with nexthop
14 # objects. Device reference counts and network namespace cleanup tested
15 # by use of network namespace for peer.
18 # Kselftest framework requirement - SKIP code is 4.
21 # all tests in this script. Can be overridden with -t option
63 ################################################################################
72 if [ ${rc} -eq ${expected} ]; then
73 printf "TEST: %-60s [ OK ]\n" "${msg}"
74 nsuccess=$((nsuccess+1))
78 printf "TEST: %-60s [FAIL]\n" "${msg}"
79 if [ "$VERBOSE" = "1" ]; then
80 echo " rc=$rc, expected $expected"
83 if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
85 echo "hit enter to continue, 'q' to quit"
87 [ "$a" = "q" ] && exit 1
91 if [ "${PAUSE}" = "yes" ]; then
93 echo "hit enter to continue, 'q' to quit"
95 [ "$a" = "q" ] && exit 1
98 [ "$VERBOSE" = "1" ] && echo
105 local stderr="2>/dev/null"
107 if [ "$VERBOSE" = "1" ]; then
108 printf "COMMAND: $cmd\n"
112 out=$(eval $cmd $stderr)
114 if [ "$VERBOSE" = "1" -a -n "$out" ]; then
127 [ -n "$2" ] && ns="-netns $2"
128 addr=$(ip $ns -6 -br addr show dev ${dev} | \
130 for (i = 3; i <= NF; ++i) {
138 [ -z "$addr" ] && return 1
149 ip netns del ${n} 2>/dev/null
153 ip netns set ${n} $((nsid++))
154 ip -netns ${n} addr add 127.0.0.1/8 dev lo
155 ip -netns ${n} link set lo up
157 ip netns exec ${n} sysctl -qw net.ipv4.ip_forward=1
158 ip netns exec ${n} sysctl -qw net.ipv4.fib_multipath_use_neigh=1
159 ip netns exec ${n} sysctl -qw net.ipv4.conf.default.ignore_routes_with_linkdown=1
160 ip netns exec ${n} sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
161 ip netns exec ${n} sysctl -qw net.ipv6.conf.all.forwarding=1
162 ip netns exec ${n} sysctl -qw net.ipv6.conf.default.forwarding=1
163 ip netns exec ${n} sysctl -qw net.ipv6.conf.default.ignore_routes_with_linkdown=1
164 ip netns exec ${n} sysctl -qw net.ipv6.conf.all.accept_dad=0
165 ip netns exec ${n} sysctl -qw net.ipv6.conf.default.accept_dad=0
179 BRIDGE="bridge -netns me"
181 $IP li add veth1 type veth peer name veth2
183 $IP addr add 172.16.1.1/24 dev veth1
184 $IP -6 addr add 2001:db8:91::1/64 dev veth1 nodad
186 $IP li add veth3 type veth peer name veth4
188 $IP addr add 172.16.2.1/24 dev veth3
189 $IP -6 addr add 2001:db8:92::1/64 dev veth3 nodad
191 $IP li set veth2 netns peer up
192 ip -netns peer addr add 172.16.1.2/24 dev veth2
193 ip -netns peer -6 addr add 2001:db8:91::2/64 dev veth2 nodad
195 $IP li set veth4 netns peer up
196 ip -netns peer addr add 172.16.2.2/24 dev veth4
197 ip -netns peer -6 addr add 2001:db8:92::2/64 dev veth4 nodad
199 ip -netns remote li add veth5 type veth peer name veth6
200 ip -netns remote li set veth5 up
201 ip -netns remote addr add dev veth5 172.16.101.1/24
202 ip -netns remote -6 addr add dev veth5 2001:db8:101::1/64 nodad
203 ip -netns remote ro add 172.16.0.0/22 via 172.16.101.2
204 ip -netns remote -6 ro add 2001:db8:90::/40 via 2001:db8:101::2
206 ip -netns remote li set veth6 netns peer up
207 ip -netns peer addr add dev veth6 172.16.101.2/24
208 ip -netns peer -6 addr add dev veth6 2001:db8:101::2/64 nodad
216 for ns in me peer remote; do
217 ip netns del ${ns} 2>/dev/null
227 [ "${out}" = "${expected}" ] && return 0
229 if [ -z "${out}" ]; then
230 if [ "$VERBOSE" = "1" ]; then
231 printf "\nNo entry found\n"
233 printf " ${expected}\n"
239 if [ "${out}" != "${expected}" ]; then
241 if [ "${VERBOSE}" = "1" ]; then
242 printf " Unexpected entry. Have:\n"
244 printf " Expected:\n"
245 printf " ${expected}\n\n"
247 echo " WARNING: Unexpected route entry"
260 out=$($IP nexthop ls ${nharg} 2>/dev/null)
262 check_output "${out}" "${expected}"
265 check_nexthop_bucket()
271 # remove the idle time since we cannot match it
272 out=$($IP nexthop bucket ${nharg} \
273 | sed s/idle_time\ [0-9.]*\ // 2>/dev/null)
275 check_output "${out}" "${expected}"
284 out=$($IP route ls match ${pfx} 2>/dev/null)
286 check_output "${out}" "${expected}"
295 out=$($IP -6 route ls match ${pfx} 2>/dev/null | sed -e 's/pref medium//')
297 check_output "${out}" "${expected}"
306 local grpidstart=1000
313 if [ $ipv -eq 4 ]; then
316 ipstr="2001:db8:91::"
320 # Create $grpnum groups with specified $ecmp and dump them
323 # create nexthops with different gateways
325 while [ $iter -le $(($ecmp + 1)) ]
327 nhidstr="$(($nhidstart + $iter))"
328 run_cmd "$IP nexthop add id $nhidstr via $ipstr$iter dev veth1"
329 check_nexthop "id $nhidstr" "id $nhidstr via $ipstr$iter dev veth1 scope link"
331 if [ $iter -le $ecmp ]; then
339 # create duplicate large ecmp groups
341 while [ $iter -le $grpnum ]
343 grpidstr="$(($grpidstart + $iter))"
344 run_cmd "$IP nexthop add id $grpidstr group $grpstr"
345 check_nexthop "id $grpidstr" "id $grpidstr group $grpstr"
350 run_cmd "$IP nexthop list"
351 log_test $? 0 "Dump large (x$ecmp) ecmp groups"
354 check_large_res_grp()
360 if [ $ipv -eq 4 ]; then
363 ipstr="2001:db8:91::2"
366 # create a resilient group with $buckets buckets and dump them
367 run_cmd "$IP nexthop add id 100 via $ipstr dev veth1"
368 run_cmd "$IP nexthop add id 1000 group 100 type resilient buckets $buckets"
369 run_cmd "$IP nexthop bucket list"
370 log_test $? 0 "Dump large (x$buckets) nexthop buckets"
377 # start the monitor in the background
378 tmpfile=`mktemp /var/run/nexthoptestXXX`
379 mpid=`($IP monitor $mtype > $tmpfile & echo $!) 2>/dev/null`
381 echo "$mpid $tmpfile"
390 # check the monitor results
392 lines=`wc -l $tmpfile | cut "-d " -f1`
400 check_nexthop_fdb_support()
402 $IP nexthop help 2>&1 | grep -q fdb
403 if [ $? -ne 0 ]; then
404 echo "SKIP: iproute2 too old, missing fdb nexthop support"
409 check_nexthop_res_support()
411 $IP nexthop help 2>&1 | grep -q resilient
412 if [ $? -ne 0 ]; then
413 echo "SKIP: iproute2 too old, missing resilient nexthop group support"
423 echo "IPv6 fdb groups functional"
424 echo "--------------------------"
426 check_nexthop_fdb_support
427 if [ $? -eq $ksft_skip ]; then
431 # create group with multiple nexthops
432 run_cmd "$IP nexthop add id 61 via 2001:db8:91::2 fdb"
433 run_cmd "$IP nexthop add id 62 via 2001:db8:91::3 fdb"
434 run_cmd "$IP nexthop add id 102 group 61/62 fdb"
435 check_nexthop "id 102" "id 102 group 61/62 fdb"
436 log_test $? 0 "Fdb Nexthop group with multiple nexthops"
439 run_cmd "$IP nexthop get id 102"
440 check_nexthop "id 102" "id 102 group 61/62 fdb"
441 log_test $? 0 "Get Fdb nexthop group by id"
443 # fdb nexthop group can only contain fdb nexthops
444 run_cmd "$IP nexthop add id 63 via 2001:db8:91::4"
445 run_cmd "$IP nexthop add id 64 via 2001:db8:91::5"
446 run_cmd "$IP nexthop add id 103 group 63/64 fdb"
447 log_test $? 2 "Fdb Nexthop group with non-fdb nexthops"
449 # Non fdb nexthop group can not contain fdb nexthops
450 run_cmd "$IP nexthop add id 65 via 2001:db8:91::5 fdb"
451 run_cmd "$IP nexthop add id 66 via 2001:db8:91::6 fdb"
452 run_cmd "$IP nexthop add id 104 group 65/66"
453 log_test $? 2 "Non-Fdb Nexthop group with fdb nexthops"
455 # fdb nexthop cannot have blackhole
456 run_cmd "$IP nexthop add id 67 blackhole fdb"
457 log_test $? 2 "Fdb Nexthop with blackhole"
459 # fdb nexthop with oif
460 run_cmd "$IP nexthop add id 68 via 2001:db8:91::7 dev veth1 fdb"
461 log_test $? 2 "Fdb Nexthop with oif"
463 # fdb nexthop with onlink
464 run_cmd "$IP nexthop add id 68 via 2001:db8:91::7 onlink fdb"
465 log_test $? 2 "Fdb Nexthop with onlink"
467 # fdb nexthop with encap
468 run_cmd "$IP nexthop add id 69 encap mpls 101 via 2001:db8:91::8 dev veth1 fdb"
469 log_test $? 2 "Fdb Nexthop with encap"
471 run_cmd "$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"
472 run_cmd "$BRIDGE fdb add 02:02:00:00:00:13 dev vx10 nhid 102 self"
473 log_test $? 0 "Fdb mac add with nexthop group"
475 ## fdb nexthops can only reference nexthop groups and not nexthops
476 run_cmd "$BRIDGE fdb add 02:02:00:00:00:14 dev vx10 nhid 61 self"
477 log_test $? 255 "Fdb mac add with nexthop"
479 run_cmd "$IP -6 ro add 2001:db8:101::1/128 nhid 66"
480 log_test $? 2 "Route add with fdb nexthop"
482 run_cmd "$IP -6 ro add 2001:db8:101::1/128 nhid 103"
483 log_test $? 2 "Route add with fdb nexthop group"
485 run_cmd "$IP nexthop del id 61"
486 run_cmd "$BRIDGE fdb get to 02:02:00:00:00:13 dev vx10 self"
487 log_test $? 0 "Fdb entry after deleting a single nexthop"
489 run_cmd "$IP nexthop del id 102"
490 log_test $? 0 "Fdb nexthop delete"
492 run_cmd "$BRIDGE fdb get to 02:02:00:00:00:13 dev vx10 self"
493 log_test $? 254 "Fdb entry after deleting a nexthop group"
495 $IP link del dev vx10
503 echo "IPv4 fdb groups functional"
504 echo "--------------------------"
506 check_nexthop_fdb_support
507 if [ $? -eq $ksft_skip ]; then
511 # create group with multiple nexthops
512 run_cmd "$IP nexthop add id 12 via 172.16.1.2 fdb"
513 run_cmd "$IP nexthop add id 13 via 172.16.1.3 fdb"
514 run_cmd "$IP nexthop add id 102 group 12/13 fdb"
515 check_nexthop "id 102" "id 102 group 12/13 fdb"
516 log_test $? 0 "Fdb Nexthop group with multiple nexthops"
519 run_cmd "$IP nexthop get id 102"
520 check_nexthop "id 102" "id 102 group 12/13 fdb"
521 log_test $? 0 "Get Fdb nexthop group by id"
523 # fdb nexthop group can only contain fdb nexthops
524 run_cmd "$IP nexthop add id 14 via 172.16.1.2"
525 run_cmd "$IP nexthop add id 15 via 172.16.1.3"
526 run_cmd "$IP nexthop add id 103 group 14/15 fdb"
527 log_test $? 2 "Fdb Nexthop group with non-fdb nexthops"
529 # Non fdb nexthop group can not contain fdb nexthops
530 run_cmd "$IP nexthop add id 16 via 172.16.1.2 fdb"
531 run_cmd "$IP nexthop add id 17 via 172.16.1.3 fdb"
532 run_cmd "$IP nexthop add id 104 group 14/15"
533 log_test $? 2 "Non-Fdb Nexthop group with fdb nexthops"
535 # fdb nexthop cannot have blackhole
536 run_cmd "$IP nexthop add id 18 blackhole fdb"
537 log_test $? 2 "Fdb Nexthop with blackhole"
539 # fdb nexthop with oif
540 run_cmd "$IP nexthop add id 16 via 172.16.1.2 dev veth1 fdb"
541 log_test $? 2 "Fdb Nexthop with oif"
543 # fdb nexthop with onlink
544 run_cmd "$IP nexthop add id 16 via 172.16.1.2 onlink fdb"
545 log_test $? 2 "Fdb Nexthop with onlink"
547 # fdb nexthop with encap
548 run_cmd "$IP nexthop add id 17 encap mpls 101 via 172.16.1.2 dev veth1 fdb"
549 log_test $? 2 "Fdb Nexthop with encap"
551 run_cmd "$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"
552 run_cmd "$BRIDGE fdb add 02:02:00:00:00:13 dev vx10 nhid 102 self"
553 log_test $? 0 "Fdb mac add with nexthop group"
555 # fdb nexthops can only reference nexthop groups and not nexthops
556 run_cmd "$BRIDGE fdb add 02:02:00:00:00:14 dev vx10 nhid 12 self"
557 log_test $? 255 "Fdb mac add with nexthop"
559 run_cmd "$IP ro add 172.16.0.0/22 nhid 15"
560 log_test $? 2 "Route add with fdb nexthop"
562 run_cmd "$IP ro add 172.16.0.0/22 nhid 103"
563 log_test $? 2 "Route add with fdb nexthop group"
565 run_cmd "$IP nexthop del id 12"
566 run_cmd "$BRIDGE fdb get to 02:02:00:00:00:13 dev vx10 self"
567 log_test $? 0 "Fdb entry after deleting a single nexthop"
569 run_cmd "$IP nexthop del id 102"
570 log_test $? 0 "Fdb nexthop delete"
572 run_cmd "$BRIDGE fdb get to 02:02:00:00:00:13 dev vx10 self"
573 log_test $? 254 "Fdb entry after deleting a nexthop group"
575 $IP link del dev vx10
578 ################################################################################
579 # basic operations (add, delete, replace) on nexthops and nexthop groups
589 echo "----------------------"
591 run_cmd "$IP nexthop add id 52 via 2001:db8:91::2 dev veth1"
593 log_test $rc 0 "Create nexthop with id, gw, dev"
594 if [ $rc -ne 0 ]; then
595 echo "Basic IPv6 create fails; can not continue"
599 run_cmd "$IP nexthop get id 52"
600 log_test $? 0 "Get nexthop by id"
601 check_nexthop "id 52" "id 52 via 2001:db8:91::2 dev veth1 scope link"
603 run_cmd "$IP nexthop del id 52"
604 log_test $? 0 "Delete nexthop by id"
605 check_nexthop "id 52" ""
610 # gw validation, no device - fails since dev required
611 run_cmd "$IP nexthop add id 52 via 2001:db8:92::3"
612 log_test $? 2 "Create nexthop - gw only"
614 # gw is not reachable throught given dev
615 run_cmd "$IP nexthop add id 53 via 2001:db8:3::3 dev veth1"
616 log_test $? 2 "Create nexthop - invalid gw+dev combination"
618 # onlink arg overrides gw+dev lookup
619 run_cmd "$IP nexthop add id 53 via 2001:db8:3::3 dev veth1 onlink"
620 log_test $? 0 "Create nexthop - gw+dev and onlink"
622 # admin down should delete nexthops
624 run_cmd "$IP -6 nexthop add id 55 via 2001:db8:91::3 dev veth1"
625 run_cmd "$IP nexthop add id 56 via 2001:db8:91::4 dev veth1"
626 run_cmd "$IP nexthop add id 57 via 2001:db8:91::5 dev veth1"
627 run_cmd "$IP li set dev veth1 down"
629 check_nexthop "dev veth1" ""
630 log_test $? 0 "Nexthops removed on admin down"
635 if [ ! -x "$(command -v mausezahn)" ]; then
636 echo "SKIP: Could not run test; need mausezahn tool"
640 run_cmd "$IP link set dev veth1 up"
641 run_cmd "$IP link add veth1.10 link veth1 up type vlan id 10"
642 run_cmd "$IP link add veth1.20 link veth1 up type vlan id 20"
643 run_cmd "$IP -6 addr add 2001:db8:91::1/64 dev veth1.10"
644 run_cmd "$IP -6 addr add 2001:db8:92::1/64 dev veth1.20"
645 run_cmd "$IP -6 neigh add 2001:db8:91::2 lladdr 00:11:22:33:44:55 dev veth1.10"
646 run_cmd "$IP -6 neigh add 2001:db8:92::2 lladdr 00:11:22:33:44:55 dev veth1.20"
647 run_cmd "$IP nexthop add id 100 via 2001:db8:91::2 dev veth1.10"
648 run_cmd "$IP nexthop add id 101 via 2001:db8:92::2 dev veth1.20"
649 run_cmd "$IP nexthop add id 102 group 100"
650 run_cmd "$IP route add 2001:db8:101::1/128 nhid 102"
652 # create per-cpu dsts through nh 100
653 run_cmd "ip netns exec me mausezahn -6 veth1.10 -B 2001:db8:101::1 -A 2001:db8:91::1 -c 5 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1"
655 # remove nh 100 from the group to delete the route potentially leaving
656 # a stale per-cpu dst which holds a reference to the nexthop's net
657 # device and to the IPv6 route
658 run_cmd "$IP nexthop replace id 102 group 101"
659 run_cmd "$IP route del 2001:db8:101::1/128"
661 # add both nexthops to the group so a reference is taken on them
662 run_cmd "$IP nexthop replace id 102 group 100/101"
664 # if the bug described in commit "net: nexthop: release IPv6 per-cpu
665 # dsts when replacing a nexthop group" exists at this point we have
666 # an unlinked IPv6 route (but not freed due to stale dst) with a
667 # reference over the group so we delete the group which will again
668 # only unlink it due to the route reference
669 run_cmd "$IP nexthop del id 102"
671 # delete the nexthop with stale dst, since we have an unlinked
672 # group with a ref to it and an unlinked IPv6 route with ref to the
673 # group, the nh will only be unlinked and not freed so the stale dst
674 # remains forever and we get a net device refcount imbalance
675 run_cmd "$IP nexthop del id 100"
677 # if a reference was lost this command will hang because the net device
679 timeout -s KILL 5 ip netns exec me ip link del veth1.10 >/dev/null 2>&1
681 # we can't cleanup if the command is hung trying to delete the netdev
682 if [ $? -eq 137 ]; then
687 run_cmd "$IP link del veth1.20"
688 run_cmd "$IP nexthop flush"
698 echo "IPv6 groups functional"
699 echo "----------------------"
701 # basic functionality: create a nexthop group, default weight
702 run_cmd "$IP nexthop add id 61 via 2001:db8:91::2 dev veth1"
703 run_cmd "$IP nexthop add id 101 group 61"
704 log_test $? 0 "Create nexthop group with single nexthop"
707 run_cmd "$IP nexthop get id 101"
708 log_test $? 0 "Get nexthop group by id"
709 check_nexthop "id 101" "id 101 group 61"
711 # delete nexthop group
712 run_cmd "$IP nexthop del id 101"
713 log_test $? 0 "Delete nexthop group by id"
714 check_nexthop "id 101" ""
716 $IP nexthop flush >/dev/null 2>&1
717 check_nexthop "id 101" ""
720 # create group with multiple nexthops - mix of gw and dev only
722 run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"
723 run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
724 run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1"
725 run_cmd "$IP nexthop add id 65 dev veth1"
726 run_cmd "$IP nexthop add id 102 group 62/63/64/65"
727 log_test $? 0 "Nexthop group with multiple nexthops"
728 check_nexthop "id 102" "id 102 group 62/63/64/65"
730 # Delete nexthop in a group and group is updated
731 run_cmd "$IP nexthop del id 63"
732 check_nexthop "id 102" "id 102 group 62/64/65"
733 log_test $? 0 "Nexthop group updated when entry is deleted"
735 # create group with multiple weighted nexthops
736 run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
737 run_cmd "$IP nexthop add id 103 group 62/63,2/64,3/65,4"
738 log_test $? 0 "Nexthop group with weighted nexthops"
739 check_nexthop "id 103" "id 103 group 62/63,2/64,3/65,4"
741 # Delete nexthop in a weighted group and group is updated
742 run_cmd "$IP nexthop del id 63"
743 check_nexthop "id 103" "id 103 group 62/64,3/65,4"
744 log_test $? 0 "Weighted nexthop group updated when entry is deleted"
746 # admin down - nexthop is removed from group
747 run_cmd "$IP li set dev veth1 down"
748 check_nexthop "dev veth1" ""
749 log_test $? 0 "Nexthops in groups removed on admin down"
751 # expect groups to have been deleted as well
754 run_cmd "$IP li set dev veth1 up"
756 $IP nexthop flush >/dev/null 2>&1
758 # group with nexthops using different devices
760 run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"
761 run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
762 run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1"
763 run_cmd "$IP nexthop add id 65 via 2001:db8:91::5 dev veth1"
765 run_cmd "$IP nexthop add id 72 via 2001:db8:92::2 dev veth3"
766 run_cmd "$IP nexthop add id 73 via 2001:db8:92::3 dev veth3"
767 run_cmd "$IP nexthop add id 74 via 2001:db8:92::4 dev veth3"
768 run_cmd "$IP nexthop add id 75 via 2001:db8:92::5 dev veth3"
771 # multiple groups with same nexthop
772 run_cmd "$IP nexthop add id 104 group 62"
773 run_cmd "$IP nexthop add id 105 group 62"
774 check_nexthop "group" "id 104 group 62 id 105 group 62"
775 log_test $? 0 "Multiple groups with same nexthop"
777 run_cmd "$IP nexthop flush groups"
778 [ $? -ne 0 ] && return 1
780 # on admin down of veth1, it should be removed from the group
781 run_cmd "$IP nexthop add id 105 group 62/63/72/73/64"
782 run_cmd "$IP li set veth1 down"
783 check_nexthop "id 105" "id 105 group 72/73"
784 log_test $? 0 "Nexthops in group removed on admin down - mixed group"
786 run_cmd "$IP nexthop add id 106 group 105/74"
787 log_test $? 2 "Nexthop group can not have a group as an entry"
789 # a group can have a blackhole entry only if it is the only
790 # nexthop in the group. Needed for atomic replace with an
791 # actual nexthop group
792 run_cmd "$IP -6 nexthop add id 31 blackhole"
793 run_cmd "$IP nexthop add id 107 group 31"
794 log_test $? 0 "Nexthop group with a blackhole entry"
796 run_cmd "$IP nexthop add id 108 group 31/24"
797 log_test $? 2 "Nexthop group can not have a blackhole and another nexthop"
800 log_test $? 0 "Nexthop group replace refcounts"
808 echo "IPv6 resilient groups functional"
809 echo "--------------------------------"
811 check_nexthop_res_support
812 if [ $? -eq $ksft_skip ]; then
817 # migration of nexthop buckets - equal weights
819 run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"
820 run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
821 run_cmd "$IP nexthop add id 102 group 62/63 type resilient buckets 2 idle_timer 0"
823 run_cmd "$IP nexthop del id 63"
824 check_nexthop "id 102" \
825 "id 102 group 62 type resilient buckets 2 idle_timer 0 unbalanced_timer 0 unbalanced_time 0"
826 log_test $? 0 "Nexthop group updated when entry is deleted"
827 check_nexthop_bucket "list id 102" \
828 "id 102 index 0 nhid 62 id 102 index 1 nhid 62"
829 log_test $? 0 "Nexthop buckets updated when entry is deleted"
831 run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
832 run_cmd "$IP nexthop replace id 102 group 62/63 type resilient buckets 2 idle_timer 0"
833 check_nexthop "id 102" \
834 "id 102 group 62/63 type resilient buckets 2 idle_timer 0 unbalanced_timer 0 unbalanced_time 0"
835 log_test $? 0 "Nexthop group updated after replace"
836 check_nexthop_bucket "list id 102" \
837 "id 102 index 0 nhid 63 id 102 index 1 nhid 62"
838 log_test $? 0 "Nexthop buckets updated after replace"
840 $IP nexthop flush >/dev/null 2>&1
843 # migration of nexthop buckets - unequal weights
845 run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"
846 run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
847 run_cmd "$IP nexthop add id 102 group 62,3/63,1 type resilient buckets 4 idle_timer 0"
849 run_cmd "$IP nexthop del id 63"
850 check_nexthop "id 102" \
851 "id 102 group 62,3 type resilient buckets 4 idle_timer 0 unbalanced_timer 0 unbalanced_time 0"
852 log_test $? 0 "Nexthop group updated when entry is deleted - nECMP"
853 check_nexthop_bucket "list id 102" \
854 "id 102 index 0 nhid 62 id 102 index 1 nhid 62 id 102 index 2 nhid 62 id 102 index 3 nhid 62"
855 log_test $? 0 "Nexthop buckets updated when entry is deleted - nECMP"
857 run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
858 run_cmd "$IP nexthop replace id 102 group 62,3/63,1 type resilient buckets 4 idle_timer 0"
859 check_nexthop "id 102" \
860 "id 102 group 62,3/63 type resilient buckets 4 idle_timer 0 unbalanced_timer 0 unbalanced_time 0"
861 log_test $? 0 "Nexthop group updated after replace - nECMP"
862 check_nexthop_bucket "list id 102" \
863 "id 102 index 0 nhid 63 id 102 index 1 nhid 62 id 102 index 2 nhid 62 id 102 index 3 nhid 62"
864 log_test $? 0 "Nexthop buckets updated after replace - nECMP"
872 echo "IPv6 functional runtime"
873 echo "-----------------------"
878 run_cmd "$IP nexthop add id 81 via 2001:db8:91::2 dev veth1"
879 run_cmd "$IP ro add 2001:db8:101::1/128 nhid 81"
880 log_test $? 0 "Route add"
882 run_cmd "$IP ro delete 2001:db8:101::1/128 nhid 81"
883 log_test $? 0 "Route delete"
885 run_cmd "$IP ro add 2001:db8:101::1/128 nhid 81"
886 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
887 log_test $? 0 "Ping with nexthop"
889 run_cmd "$IP nexthop add id 82 via 2001:db8:92::2 dev veth3"
890 run_cmd "$IP nexthop add id 122 group 81/82"
891 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 122"
892 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
893 log_test $? 0 "Ping - multipath"
896 # IPv6 with blackhole nexthops
898 run_cmd "$IP -6 nexthop add id 83 blackhole"
899 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 83"
900 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
901 log_test $? 2 "Ping - blackhole"
903 run_cmd "$IP nexthop replace id 83 via 2001:db8:91::2 dev veth1"
904 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
905 log_test $? 0 "Ping - blackhole replaced with gateway"
907 run_cmd "$IP -6 nexthop replace id 83 blackhole"
908 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
909 log_test $? 2 "Ping - gateway replaced by blackhole"
911 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 122"
912 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
913 if [ $? -eq 0 ]; then
914 run_cmd "$IP nexthop replace id 122 group 83"
915 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
916 log_test $? 2 "Ping - group with blackhole"
918 run_cmd "$IP nexthop replace id 122 group 81/82"
919 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
920 log_test $? 0 "Ping - group blackhole replaced with gateways"
922 log_test 2 0 "Ping - multipath failed"
926 # device only and gw + dev only mix
928 run_cmd "$IP -6 nexthop add id 85 dev veth1"
929 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 85"
930 log_test $? 0 "IPv6 route with device only nexthop"
931 check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 85 dev veth1 metric 1024"
933 run_cmd "$IP nexthop add id 123 group 81/85"
934 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 123"
935 log_test $? 0 "IPv6 multipath route with nexthop mix - dev only + gw"
936 check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 123 metric 1024 nexthop via 2001:db8:91::2 dev veth1 weight 1 nexthop dev veth1 weight 1"
939 # IPv6 route with v4 nexthop - not allowed
941 run_cmd "$IP ro delete 2001:db8:101::1/128"
942 run_cmd "$IP nexthop add id 84 via 172.16.1.1 dev veth1"
943 run_cmd "$IP ro add 2001:db8:101::1/128 nhid 84"
944 log_test $? 2 "IPv6 route can not have a v4 gateway"
946 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 81"
947 run_cmd "$IP nexthop replace id 81 via 172.16.1.1 dev veth1"
948 log_test $? 2 "Nexthop replace - v6 route, v4 nexthop"
950 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 122"
951 run_cmd "$IP nexthop replace id 81 via 172.16.1.1 dev veth1"
952 log_test $? 2 "Nexthop replace of group entry - v6 route, v4 nexthop"
954 run_cmd "$IP nexthop add id 86 via 2001:db8:92::2 dev veth3"
955 run_cmd "$IP nexthop add id 87 via 172.16.1.1 dev veth1"
956 run_cmd "$IP nexthop add id 88 via 172.16.1.1 dev veth1"
957 run_cmd "$IP nexthop add id 124 group 86/87/88"
958 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
959 log_test $? 2 "IPv6 route can not have a group with v4 and v6 gateways"
961 run_cmd "$IP nexthop del id 88"
962 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
963 log_test $? 2 "IPv6 route can not have a group with v4 and v6 gateways"
965 run_cmd "$IP nexthop del id 87"
966 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
967 log_test $? 0 "IPv6 route using a group after removing v4 gateways"
969 run_cmd "$IP ro delete 2001:db8:101::1/128"
970 run_cmd "$IP nexthop add id 87 via 172.16.1.1 dev veth1"
971 run_cmd "$IP nexthop add id 88 via 172.16.1.1 dev veth1"
972 run_cmd "$IP nexthop replace id 124 group 86/87/88"
973 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
974 log_test $? 2 "IPv6 route can not have a group with v4 and v6 gateways"
976 run_cmd "$IP nexthop replace id 88 via 2001:db8:92::2 dev veth3"
977 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
978 log_test $? 2 "IPv6 route can not have a group with v4 and v6 gateways"
980 run_cmd "$IP nexthop replace id 87 via 2001:db8:92::2 dev veth3"
981 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
982 log_test $? 0 "IPv6 route using a group after replacing v4 gateways"
984 $IP nexthop flush >/dev/null 2>&1
989 run_cmd "$IP nexthop add id 86 via 2001:db8:91::2 dev veth1"
990 run_cmd "$IP ro add 2001:db8:101::1/128 nhid 81"
992 # route can not use prefsrc with nexthops
993 run_cmd "$IP ro add 2001:db8:101::2/128 nhid 86 from 2001:db8:91::1"
994 log_test $? 2 "IPv6 route can not use src routing with external nexthop"
996 # check cleanup path on invalid metric
997 run_cmd "$IP ro add 2001:db8:101::2/128 nhid 86 congctl lock foo"
998 log_test $? 2 "IPv6 route with invalid metric"
1000 # rpfilter and default route
1001 $IP nexthop flush >/dev/null 2>&1
1002 run_cmd "ip netns exec me ip6tables -t mangle -I PREROUTING 1 -m rpfilter --invert -j DROP"
1003 run_cmd "$IP nexthop add id 91 via 2001:db8:91::2 dev veth1"
1004 run_cmd "$IP nexthop add id 92 via 2001:db8:92::2 dev veth3"
1005 run_cmd "$IP nexthop add id 93 group 91/92"
1006 run_cmd "$IP -6 ro add default nhid 91"
1007 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
1008 log_test $? 0 "Nexthop with default route and rpfilter"
1009 run_cmd "$IP -6 ro replace default nhid 93"
1010 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
1011 log_test $? 0 "Nexthop with multipath default route and rpfilter"
1014 # existing route with old nexthop; append route with new nexthop
1015 # existing route with old nexthop; replace route with new
1016 # existing route with new nexthop; replace route with old
1017 # route with src address and using nexthop - not allowed
1025 echo "IPv6 large groups (x$ecmp)"
1026 echo "---------------------"
1028 check_large_grp 6 $ecmp
1030 $IP nexthop flush >/dev/null 2>&1
1033 ipv6_large_res_grp()
1036 echo "IPv6 large resilient group (128k buckets)"
1037 echo "-----------------------------------------"
1039 check_nexthop_res_support
1040 if [ $? -eq $ksft_skip ]; then
1044 check_large_res_grp 6 $((128 * 1024))
1046 $IP nexthop flush >/dev/null 2>&1
1049 ipv6_del_add_loop1()
1052 $IP nexthop del id 100
1053 $IP nexthop add id 100 via 2001:db8:91::2 dev veth1
1054 done >/dev/null 2>&1
1057 ipv6_grp_replace_loop()
1060 $IP nexthop replace id 102 group 100/101
1061 done >/dev/null 2>&1
1073 echo "IPv6 runtime torture"
1074 echo "--------------------"
1075 if [ ! -x "$(command -v mausezahn)" ]; then
1076 echo "SKIP: Could not run test; need mausezahn tool"
1080 run_cmd "$IP nexthop add id 100 via 2001:db8:91::2 dev veth1"
1081 run_cmd "$IP nexthop add id 101 via 2001:db8:92::2 dev veth3"
1082 run_cmd "$IP nexthop add id 102 group 100/101"
1083 run_cmd "$IP route add 2001:db8:101::1 nhid 102"
1084 run_cmd "$IP route add 2001:db8:101::2 nhid 102"
1086 ipv6_del_add_loop1 &
1088 ipv6_grp_replace_loop &
1090 ip netns exec me ping -f 2001:db8:101::1 >/dev/null 2>&1 &
1092 ip netns exec me ping -f 2001:db8:101::2 >/dev/null 2>&1 &
1094 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 &
1098 kill -9 $pid1 $pid2 $pid3 $pid4 $pid5
1099 wait $pid1 $pid2 $pid3 $pid4 $pid5 2>/dev/null
1101 # if we did not crash, success
1102 log_test 0 0 "IPv6 torture test"
1105 ipv6_res_grp_replace_loop()
1108 $IP nexthop replace id 102 group 100/101 type resilient
1109 done >/dev/null 2>&1
1121 echo "IPv6 runtime resilient nexthop group torture"
1122 echo "--------------------------------------------"
1124 check_nexthop_res_support
1125 if [ $? -eq $ksft_skip ]; then
1129 if [ ! -x "$(command -v mausezahn)" ]; then
1130 echo "SKIP: Could not run test; need mausezahn tool"
1134 run_cmd "$IP nexthop add id 100 via 2001:db8:91::2 dev veth1"
1135 run_cmd "$IP nexthop add id 101 via 2001:db8:92::2 dev veth3"
1136 run_cmd "$IP nexthop add id 102 group 100/101 type resilient buckets 512 idle_timer 0"
1137 run_cmd "$IP route add 2001:db8:101::1 nhid 102"
1138 run_cmd "$IP route add 2001:db8:101::2 nhid 102"
1140 ipv6_del_add_loop1 &
1142 ipv6_res_grp_replace_loop &
1144 ip netns exec me ping -f 2001:db8:101::1 >/dev/null 2>&1 &
1146 ip netns exec me ping -f 2001:db8:101::2 >/dev/null 2>&1 &
1148 ip netns exec me mausezahn -6 veth1 \
1149 -B 2001:db8:101::2 -A 2001:db8:91::1 -c 0 \
1150 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 &
1154 kill -9 $pid1 $pid2 $pid3 $pid4 $pid5
1155 wait $pid1 $pid2 $pid3 $pid4 $pid5 2>/dev/null
1157 # if we did not crash, success
1158 log_test 0 0 "IPv6 resilient nexthop group torture test"
1166 echo "IPv4 functional"
1167 echo "----------------------"
1170 # basic IPv4 ops - add, get, delete
1172 run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1"
1174 log_test $rc 0 "Create nexthop with id, gw, dev"
1175 if [ $rc -ne 0 ]; then
1176 echo "Basic IPv4 create fails; can not continue"
1180 run_cmd "$IP nexthop get id 12"
1181 log_test $? 0 "Get nexthop by id"
1182 check_nexthop "id 12" "id 12 via 172.16.1.2 dev veth1 scope link"
1184 run_cmd "$IP nexthop del id 12"
1185 log_test $? 0 "Delete nexthop by id"
1186 check_nexthop "id 52" ""
1191 # gw validation, no device - fails since dev is required
1192 run_cmd "$IP nexthop add id 12 via 172.16.2.3"
1193 log_test $? 2 "Create nexthop - gw only"
1195 # gw not reachable through given dev
1196 run_cmd "$IP nexthop add id 13 via 172.16.3.2 dev veth1"
1197 log_test $? 2 "Create nexthop - invalid gw+dev combination"
1199 # onlink flag overrides gw+dev lookup
1200 run_cmd "$IP nexthop add id 13 via 172.16.3.2 dev veth1 onlink"
1201 log_test $? 0 "Create nexthop - gw+dev and onlink"
1203 # admin down should delete nexthops
1205 run_cmd "$IP nexthop add id 15 via 172.16.1.3 dev veth1"
1206 run_cmd "$IP nexthop add id 16 via 172.16.1.4 dev veth1"
1207 run_cmd "$IP nexthop add id 17 via 172.16.1.5 dev veth1"
1208 run_cmd "$IP li set dev veth1 down"
1210 check_nexthop "dev veth1" ""
1211 log_test $? 0 "Nexthops removed on admin down"
1213 # nexthop route delete warning: route add with nhid and delete
1215 run_cmd "$IP li set dev veth1 up"
1216 run_cmd "$IP nexthop add id 12 via 172.16.1.3 dev veth1"
1217 out1=`dmesg | grep "WARNING:.*fib_nh_match.*" | wc -l`
1218 run_cmd "$IP route add 172.16.101.1/32 nhid 12"
1219 run_cmd "$IP route delete 172.16.101.1/32 dev veth1"
1220 out2=`dmesg | grep "WARNING:.*fib_nh_match.*" | wc -l`
1223 log_test $rc 0 "Delete nexthop route warning"
1224 run_cmd "$IP route delete 172.16.101.1/32 nhid 12"
1225 run_cmd "$IP nexthop del id 12"
1233 echo "IPv4 groups functional"
1234 echo "----------------------"
1236 # basic functionality: create a nexthop group, default weight
1237 run_cmd "$IP nexthop add id 11 via 172.16.1.2 dev veth1"
1238 run_cmd "$IP nexthop add id 101 group 11"
1239 log_test $? 0 "Create nexthop group with single nexthop"
1242 run_cmd "$IP nexthop get id 101"
1243 log_test $? 0 "Get nexthop group by id"
1244 check_nexthop "id 101" "id 101 group 11"
1246 # delete nexthop group
1247 run_cmd "$IP nexthop del id 101"
1248 log_test $? 0 "Delete nexthop group by id"
1249 check_nexthop "id 101" ""
1251 $IP nexthop flush >/dev/null 2>&1
1254 # create group with multiple nexthops
1255 run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1"
1256 run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1"
1257 run_cmd "$IP nexthop add id 14 via 172.16.1.4 dev veth1"
1258 run_cmd "$IP nexthop add id 15 via 172.16.1.5 dev veth1"
1259 run_cmd "$IP nexthop add id 102 group 12/13/14/15"
1260 log_test $? 0 "Nexthop group with multiple nexthops"
1261 check_nexthop "id 102" "id 102 group 12/13/14/15"
1263 # Delete nexthop in a group and group is updated
1264 run_cmd "$IP nexthop del id 13"
1265 check_nexthop "id 102" "id 102 group 12/14/15"
1266 log_test $? 0 "Nexthop group updated when entry is deleted"
1268 # create group with multiple weighted nexthops
1269 run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1"
1270 run_cmd "$IP nexthop add id 103 group 12/13,2/14,3/15,4"
1271 log_test $? 0 "Nexthop group with weighted nexthops"
1272 check_nexthop "id 103" "id 103 group 12/13,2/14,3/15,4"
1274 # Delete nexthop in a weighted group and group is updated
1275 run_cmd "$IP nexthop del id 13"
1276 check_nexthop "id 103" "id 103 group 12/14,3/15,4"
1277 log_test $? 0 "Weighted nexthop group updated when entry is deleted"
1279 # admin down - nexthop is removed from group
1280 run_cmd "$IP li set dev veth1 down"
1281 check_nexthop "dev veth1" ""
1282 log_test $? 0 "Nexthops in groups removed on admin down"
1284 # expect groups to have been deleted as well
1287 run_cmd "$IP li set dev veth1 up"
1289 $IP nexthop flush >/dev/null 2>&1
1291 # group with nexthops using different devices
1293 run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1"
1294 run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1"
1295 run_cmd "$IP nexthop add id 14 via 172.16.1.4 dev veth1"
1296 run_cmd "$IP nexthop add id 15 via 172.16.1.5 dev veth1"
1298 run_cmd "$IP nexthop add id 22 via 172.16.2.2 dev veth3"
1299 run_cmd "$IP nexthop add id 23 via 172.16.2.3 dev veth3"
1300 run_cmd "$IP nexthop add id 24 via 172.16.2.4 dev veth3"
1301 run_cmd "$IP nexthop add id 25 via 172.16.2.5 dev veth3"
1304 # multiple groups with same nexthop
1305 run_cmd "$IP nexthop add id 104 group 12"
1306 run_cmd "$IP nexthop add id 105 group 12"
1307 check_nexthop "group" "id 104 group 12 id 105 group 12"
1308 log_test $? 0 "Multiple groups with same nexthop"
1310 run_cmd "$IP nexthop flush groups"
1311 [ $? -ne 0 ] && return 1
1313 # on admin down of veth1, it should be removed from the group
1314 run_cmd "$IP nexthop add id 105 group 12/13/22/23/14"
1315 run_cmd "$IP li set veth1 down"
1316 check_nexthop "id 105" "id 105 group 22/23"
1317 log_test $? 0 "Nexthops in group removed on admin down - mixed group"
1319 run_cmd "$IP nexthop add id 106 group 105/24"
1320 log_test $? 2 "Nexthop group can not have a group as an entry"
1322 # a group can have a blackhole entry only if it is the only
1323 # nexthop in the group. Needed for atomic replace with an
1324 # actual nexthop group
1325 run_cmd "$IP nexthop add id 31 blackhole"
1326 run_cmd "$IP nexthop add id 107 group 31"
1327 log_test $? 0 "Nexthop group with a blackhole entry"
1329 run_cmd "$IP nexthop add id 108 group 31/24"
1330 log_test $? 2 "Nexthop group can not have a blackhole and another nexthop"
1333 ipv4_res_grp_fcnal()
1338 echo "IPv4 resilient groups functional"
1339 echo "--------------------------------"
1341 check_nexthop_res_support
1342 if [ $? -eq $ksft_skip ]; then
1347 # migration of nexthop buckets - equal weights
1349 run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1"
1350 run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1"
1351 run_cmd "$IP nexthop add id 102 group 12/13 type resilient buckets 2 idle_timer 0"
1353 run_cmd "$IP nexthop del id 13"
1354 check_nexthop "id 102" \
1355 "id 102 group 12 type resilient buckets 2 idle_timer 0 unbalanced_timer 0 unbalanced_time 0"
1356 log_test $? 0 "Nexthop group updated when entry is deleted"
1357 check_nexthop_bucket "list id 102" \
1358 "id 102 index 0 nhid 12 id 102 index 1 nhid 12"
1359 log_test $? 0 "Nexthop buckets updated when entry is deleted"
1361 run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1"
1362 run_cmd "$IP nexthop replace id 102 group 12/13 type resilient buckets 2 idle_timer 0"
1363 check_nexthop "id 102" \
1364 "id 102 group 12/13 type resilient buckets 2 idle_timer 0 unbalanced_timer 0 unbalanced_time 0"
1365 log_test $? 0 "Nexthop group updated after replace"
1366 check_nexthop_bucket "list id 102" \
1367 "id 102 index 0 nhid 13 id 102 index 1 nhid 12"
1368 log_test $? 0 "Nexthop buckets updated after replace"
1370 $IP nexthop flush >/dev/null 2>&1
1373 # migration of nexthop buckets - unequal weights
1375 run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1"
1376 run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1"
1377 run_cmd "$IP nexthop add id 102 group 12,3/13,1 type resilient buckets 4 idle_timer 0"
1379 run_cmd "$IP nexthop del id 13"
1380 check_nexthop "id 102" \
1381 "id 102 group 12,3 type resilient buckets 4 idle_timer 0 unbalanced_timer 0 unbalanced_time 0"
1382 log_test $? 0 "Nexthop group updated when entry is deleted - nECMP"
1383 check_nexthop_bucket "list id 102" \
1384 "id 102 index 0 nhid 12 id 102 index 1 nhid 12 id 102 index 2 nhid 12 id 102 index 3 nhid 12"
1385 log_test $? 0 "Nexthop buckets updated when entry is deleted - nECMP"
1387 run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1"
1388 run_cmd "$IP nexthop replace id 102 group 12,3/13,1 type resilient buckets 4 idle_timer 0"
1389 check_nexthop "id 102" \
1390 "id 102 group 12,3/13 type resilient buckets 4 idle_timer 0 unbalanced_timer 0 unbalanced_time 0"
1391 log_test $? 0 "Nexthop group updated after replace - nECMP"
1392 check_nexthop_bucket "list id 102" \
1393 "id 102 index 0 nhid 13 id 102 index 1 nhid 12 id 102 index 2 nhid 12 id 102 index 3 nhid 12"
1394 log_test $? 0 "Nexthop buckets updated after replace - nECMP"
1402 lladdr=$(get_linklocal veth2 peer)
1403 run_cmd "$IP nexthop add id 11 via ${lladdr} dev veth1"
1405 run_cmd "$IP ro add 172.16.101.1/32 nhid 11"
1406 log_test $? 0 "IPv6 nexthop with IPv4 route"
1407 check_route "172.16.101.1" "172.16.101.1 nhid 11 via inet6 ${lladdr} dev veth1"
1410 run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1"
1411 run_cmd "$IP nexthop add id 101 group 11/12"
1413 run_cmd "$IP ro replace 172.16.101.1/32 nhid 101"
1414 log_test $? 0 "IPv6 nexthop with IPv4 route"
1416 check_route "172.16.101.1" "172.16.101.1 nhid 101 nexthop via inet6 ${lladdr} dev veth1 weight 1 nexthop via 172.16.1.2 dev veth1 weight 1"
1418 run_cmd "$IP ro replace 172.16.101.1/32 via inet6 ${lladdr} dev veth1"
1419 log_test $? 0 "IPv4 route with IPv6 gateway"
1420 check_route "172.16.101.1" "172.16.101.1 via inet6 ${lladdr} dev veth1"
1422 run_cmd "$IP ro replace 172.16.101.1/32 via inet6 2001:db8:50::1 dev veth1"
1423 log_test $? 2 "IPv4 route with invalid IPv6 gateway"
1426 ipv4_fcnal_runtime()
1432 echo "IPv4 functional runtime"
1433 echo "-----------------------"
1435 run_cmd "$IP nexthop add id 21 via 172.16.1.2 dev veth1"
1436 run_cmd "$IP ro add 172.16.101.1/32 nhid 21"
1437 log_test $? 0 "Route add"
1438 check_route "172.16.101.1" "172.16.101.1 nhid 21 via 172.16.1.2 dev veth1"
1440 run_cmd "$IP ro delete 172.16.101.1/32 nhid 21"
1441 log_test $? 0 "Route delete"
1446 run_cmd "$IP nexthop add id 22 via 172.16.1.2 dev veth1"
1447 run_cmd "$IP ro add 172.16.101.1/32 nhid 22 scope host"
1448 log_test $? 2 "Route add - scope conflict with nexthop"
1450 run_cmd "$IP nexthop replace id 22 dev veth3"
1451 run_cmd "$IP ro add 172.16.101.1/32 nhid 22 scope host"
1452 run_cmd "$IP nexthop replace id 22 via 172.16.2.2 dev veth3"
1453 log_test $? 2 "Nexthop replace with invalid scope for existing route"
1455 # check cleanup path on invalid metric
1456 run_cmd "$IP ro add 172.16.101.2/32 nhid 22 congctl lock foo"
1457 log_test $? 2 "IPv4 route with invalid metric"
1460 # add route with nexthop and check traffic
1462 run_cmd "$IP nexthop replace id 21 via 172.16.1.2 dev veth1"
1463 run_cmd "$IP ro replace 172.16.101.1/32 nhid 21"
1464 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
1465 log_test $? 0 "Basic ping"
1467 run_cmd "$IP nexthop replace id 22 via 172.16.2.2 dev veth3"
1468 run_cmd "$IP nexthop add id 122 group 21/22"
1469 run_cmd "$IP ro replace 172.16.101.1/32 nhid 122"
1470 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
1471 log_test $? 0 "Ping - multipath"
1473 run_cmd "$IP ro delete 172.16.101.1/32 nhid 122"
1476 # multiple default routes
1477 # - tests fib_select_default
1478 run_cmd "$IP nexthop add id 501 via 172.16.1.2 dev veth1"
1479 run_cmd "$IP ro add default nhid 501"
1480 run_cmd "$IP ro add default via 172.16.1.3 dev veth1 metric 20"
1481 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
1482 log_test $? 0 "Ping - multiple default routes, nh first"
1485 run_cmd "$IP ro del default nhid 501"
1486 run_cmd "$IP ro del default via 172.16.1.3 dev veth1 metric 20"
1487 run_cmd "$IP ro add default via 172.16.1.2 dev veth1 metric 20"
1488 run_cmd "$IP nexthop replace id 501 via 172.16.1.3 dev veth1"
1489 run_cmd "$IP ro add default nhid 501 metric 20"
1490 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
1491 log_test $? 0 "Ping - multiple default routes, nh second"
1493 run_cmd "$IP nexthop delete nhid 501"
1494 run_cmd "$IP ro del default"
1497 # IPv4 with blackhole nexthops
1499 run_cmd "$IP nexthop add id 23 blackhole"
1500 run_cmd "$IP ro replace 172.16.101.1/32 nhid 23"
1501 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
1502 log_test $? 2 "Ping - blackhole"
1504 run_cmd "$IP nexthop replace id 23 via 172.16.1.2 dev veth1"
1505 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
1506 log_test $? 0 "Ping - blackhole replaced with gateway"
1508 run_cmd "$IP nexthop replace id 23 blackhole"
1509 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
1510 log_test $? 2 "Ping - gateway replaced by blackhole"
1512 run_cmd "$IP ro replace 172.16.101.1/32 nhid 122"
1513 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
1514 if [ $? -eq 0 ]; then
1515 run_cmd "$IP nexthop replace id 122 group 23"
1516 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
1517 log_test $? 2 "Ping - group with blackhole"
1519 run_cmd "$IP nexthop replace id 122 group 21/22"
1520 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
1521 log_test $? 0 "Ping - group blackhole replaced with gateways"
1523 log_test 2 0 "Ping - multipath failed"
1527 # device only and gw + dev only mix
1529 run_cmd "$IP nexthop add id 85 dev veth1"
1530 run_cmd "$IP ro replace 172.16.101.1/32 nhid 85"
1531 log_test $? 0 "IPv4 route with device only nexthop"
1532 check_route "172.16.101.1" "172.16.101.1 nhid 85 dev veth1"
1534 run_cmd "$IP nexthop add id 123 group 21/85"
1535 run_cmd "$IP ro replace 172.16.101.1/32 nhid 123"
1536 log_test $? 0 "IPv4 multipath route with nexthop mix - dev only + gw"
1537 check_route "172.16.101.1" "172.16.101.1 nhid 123 nexthop via 172.16.1.2 dev veth1 weight 1 nexthop dev veth1 weight 1"
1543 lladdr=$(get_linklocal veth2 peer)
1544 run_cmd "$IP nexthop add id 24 via ${lladdr} dev veth1"
1546 run_cmd "$IP ro replace 172.16.101.1/32 nhid 24"
1547 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
1548 log_test $? 0 "IPv6 nexthop with IPv4 route"
1550 $IP neigh sh | grep -q "${lladdr} dev veth1"
1551 if [ $? -eq 1 ]; then
1552 echo " WARNING: Neigh entry missing for ${lladdr}"
1553 $IP neigh sh | grep 'dev veth1'
1556 $IP neigh sh | grep -q "172.16.101.1 dev eth1"
1557 if [ $? -eq 0 ]; then
1558 echo " WARNING: Neigh entry exists for 172.16.101.1"
1559 $IP neigh sh | grep 'dev veth1'
1563 run_cmd "$IP nexthop add id 25 via 172.16.1.2 dev veth1"
1564 run_cmd "$IP nexthop add id 101 group 24/25"
1566 run_cmd "$IP ro replace 172.16.101.1/32 nhid 101"
1567 log_test $? 0 "IPv4 route with mixed v4-v6 multipath route"
1569 check_route "172.16.101.1" "172.16.101.1 nhid 101 nexthop via inet6 ${lladdr} dev veth1 weight 1 nexthop via 172.16.1.2 dev veth1 weight 1"
1571 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
1572 log_test $? 0 "IPv6 nexthop with IPv4 route"
1574 run_cmd "$IP ro replace 172.16.101.1/32 via inet6 ${lladdr} dev veth1"
1575 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
1576 log_test $? 0 "IPv4 route with IPv6 gateway"
1578 $IP neigh sh | grep -q "${lladdr} dev veth1"
1579 if [ $? -eq 1 ]; then
1580 echo " WARNING: Neigh entry missing for ${lladdr}"
1581 $IP neigh sh | grep 'dev veth1'
1584 $IP neigh sh | grep -q "172.16.101.1 dev eth1"
1585 if [ $? -eq 0 ]; then
1586 echo " WARNING: Neigh entry exists for 172.16.101.1"
1587 $IP neigh sh | grep 'dev veth1'
1590 run_cmd "$IP ro del 172.16.101.1/32 via inet6 ${lladdr} dev veth1"
1591 run_cmd "$IP -4 ro add default via inet6 ${lladdr} dev veth1"
1592 run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
1593 log_test $? 0 "IPv4 default route with IPv6 gateway"
1596 # MPLS as an example of LWT encap
1598 run_cmd "$IP nexthop add id 51 encap mpls 101 via 172.16.1.2 dev veth1"
1599 log_test $? 0 "IPv4 route with MPLS encap"
1600 check_nexthop "id 51" "id 51 encap mpls 101 via 172.16.1.2 dev veth1 scope link"
1601 log_test $? 0 "IPv4 route with MPLS encap - check"
1603 run_cmd "$IP nexthop add id 52 encap mpls 102 via inet6 2001:db8:91::2 dev veth1"
1604 log_test $? 0 "IPv4 route with MPLS encap and v6 gateway"
1605 check_nexthop "id 52" "id 52 encap mpls 102 via 2001:db8:91::2 dev veth1 scope link"
1606 log_test $? 0 "IPv4 route with MPLS encap, v6 gw - check"
1614 echo "IPv4 large groups (x$ecmp)"
1615 echo "---------------------"
1617 check_large_grp 4 $ecmp
1619 $IP nexthop flush >/dev/null 2>&1
1622 ipv4_large_res_grp()
1625 echo "IPv4 large resilient group (128k buckets)"
1626 echo "-----------------------------------------"
1628 check_nexthop_res_support
1629 if [ $? -eq $ksft_skip ]; then
1633 check_large_res_grp 4 $((128 * 1024))
1635 $IP nexthop flush >/dev/null 2>&1
1638 sysctl_nexthop_compat_mode_check()
1640 local sysctlname="net.ipv4.nexthop_compat_mode"
1643 IPE="ip netns exec me"
1645 $IPE sysctl -q $sysctlname 2>&1 >/dev/null
1646 if [ $? -ne 0 ]; then
1647 echo "SKIP: kernel lacks nexthop compat mode sysctl control"
1651 out=$($IPE sysctl $sysctlname 2>/dev/null)
1652 log_test $? 0 "$lprefix default nexthop compat mode check"
1653 check_output "${out}" "$sysctlname = 1"
1656 sysctl_nexthop_compat_mode_set()
1658 local sysctlname="net.ipv4.nexthop_compat_mode"
1662 IPE="ip netns exec me"
1664 out=$($IPE sysctl -w $sysctlname=$mode)
1665 log_test $? 0 "$lprefix set compat mode - $mode"
1666 check_output "${out}" "net.ipv4.nexthop_compat_mode = $mode"
1674 echo "IPv6 nexthop api compat mode test"
1675 echo "--------------------------------"
1677 sysctl_nexthop_compat_mode_check "IPv6"
1678 if [ $? -eq $ksft_skip ]; then
1682 run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"
1683 run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
1684 run_cmd "$IP nexthop add id 122 group 62/63"
1685 ipmout=$(start_ip_monitor route)
1687 run_cmd "$IP -6 ro add 2001:db8:101::1/128 nhid 122"
1688 # route add notification should contain expanded nexthops
1689 stop_ip_monitor $ipmout 3
1690 log_test $? 0 "IPv6 compat mode on - route add notification"
1692 # route dump should contain expanded nexthops
1693 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"
1694 log_test $? 0 "IPv6 compat mode on - route dump"
1696 # change in nexthop group should generate route notification
1697 run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1"
1698 ipmout=$(start_ip_monitor route)
1699 run_cmd "$IP nexthop replace id 122 group 62/64"
1700 stop_ip_monitor $ipmout 3
1702 log_test $? 0 "IPv6 compat mode on - nexthop change"
1704 # set compat mode off
1705 sysctl_nexthop_compat_mode_set 0 "IPv6"
1707 run_cmd "$IP -6 ro del 2001:db8:101::1/128 nhid 122"
1709 run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"
1710 run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
1711 run_cmd "$IP nexthop add id 122 group 62/63"
1712 ipmout=$(start_ip_monitor route)
1714 run_cmd "$IP -6 ro add 2001:db8:101::1/128 nhid 122"
1715 # route add notification should not contain expanded nexthops
1716 stop_ip_monitor $ipmout 1
1717 log_test $? 0 "IPv6 compat mode off - route add notification"
1719 # route dump should not contain expanded nexthops
1720 check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 122 metric 1024"
1721 log_test $? 0 "IPv6 compat mode off - route dump"
1723 # change in nexthop group should not generate route notification
1724 run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1"
1725 ipmout=$(start_ip_monitor route)
1726 run_cmd "$IP nexthop replace id 122 group 62/64"
1727 stop_ip_monitor $ipmout 0
1728 log_test $? 0 "IPv6 compat mode off - nexthop change"
1730 # nexthop delete should not generate route notification
1731 ipmout=$(start_ip_monitor route)
1732 run_cmd "$IP nexthop del id 122"
1733 stop_ip_monitor $ipmout 0
1734 log_test $? 0 "IPv6 compat mode off - nexthop delete"
1736 # set compat mode back on
1737 sysctl_nexthop_compat_mode_set 1 "IPv6"
1745 echo "IPv4 nexthop api compat mode"
1746 echo "----------------------------"
1748 sysctl_nexthop_compat_mode_check "IPv4"
1749 if [ $? -eq $ksft_skip ]; then
1753 run_cmd "$IP nexthop add id 21 via 172.16.1.2 dev veth1"
1754 run_cmd "$IP nexthop add id 22 via 172.16.1.2 dev veth1"
1755 run_cmd "$IP nexthop add id 122 group 21/22"
1756 ipmout=$(start_ip_monitor route)
1758 run_cmd "$IP ro add 172.16.101.1/32 nhid 122"
1759 stop_ip_monitor $ipmout 3
1761 # route add notification should contain expanded nexthops
1762 log_test $? 0 "IPv4 compat mode on - route add notification"
1764 # route dump should contain expanded nexthops
1765 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"
1766 log_test $? 0 "IPv4 compat mode on - route dump"
1768 # change in nexthop group should generate route notification
1769 run_cmd "$IP nexthop add id 23 via 172.16.1.3 dev veth1"
1770 ipmout=$(start_ip_monitor route)
1771 run_cmd "$IP nexthop replace id 122 group 21/23"
1772 stop_ip_monitor $ipmout 3
1773 log_test $? 0 "IPv4 compat mode on - nexthop change"
1775 sysctl_nexthop_compat_mode_set 0 "IPv4"
1778 run_cmd "$IP ro del 172.16.101.1/32 nhid 122"
1780 ipmout=$(start_ip_monitor route)
1781 run_cmd "$IP ro add 172.16.101.1/32 nhid 122"
1782 stop_ip_monitor $ipmout 1
1783 # route add notification should not contain expanded nexthops
1784 log_test $? 0 "IPv4 compat mode off - route add notification"
1786 # route dump should not contain expanded nexthops
1787 check_route "172.16.101.1" "172.16.101.1 nhid 122"
1788 log_test $? 0 "IPv4 compat mode off - route dump"
1790 # change in nexthop group should not generate route notification
1791 ipmout=$(start_ip_monitor route)
1792 run_cmd "$IP nexthop replace id 122 group 21/22"
1793 stop_ip_monitor $ipmout 0
1794 log_test $? 0 "IPv4 compat mode off - nexthop change"
1796 # nexthop delete should not generate route notification
1797 ipmout=$(start_ip_monitor route)
1798 run_cmd "$IP nexthop del id 122"
1799 stop_ip_monitor $ipmout 0
1800 log_test $? 0 "IPv4 compat mode off - nexthop delete"
1802 sysctl_nexthop_compat_mode_set 1 "IPv4"
1805 ipv4_del_add_loop1()
1808 $IP nexthop del id 100
1809 $IP nexthop add id 100 via 172.16.1.2 dev veth1
1810 done >/dev/null 2>&1
1813 ipv4_grp_replace_loop()
1816 $IP nexthop replace id 102 group 100/101
1817 done >/dev/null 2>&1
1829 echo "IPv4 runtime torture"
1830 echo "--------------------"
1831 if [ ! -x "$(command -v mausezahn)" ]; then
1832 echo "SKIP: Could not run test; need mausezahn tool"
1836 run_cmd "$IP nexthop add id 100 via 172.16.1.2 dev veth1"
1837 run_cmd "$IP nexthop add id 101 via 172.16.2.2 dev veth3"
1838 run_cmd "$IP nexthop add id 102 group 100/101"
1839 run_cmd "$IP route add 172.16.101.1 nhid 102"
1840 run_cmd "$IP route add 172.16.101.2 nhid 102"
1842 ipv4_del_add_loop1 &
1844 ipv4_grp_replace_loop &
1846 ip netns exec me ping -f 172.16.101.1 >/dev/null 2>&1 &
1848 ip netns exec me ping -f 172.16.101.2 >/dev/null 2>&1 &
1850 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 &
1854 kill -9 $pid1 $pid2 $pid3 $pid4 $pid5
1855 wait $pid1 $pid2 $pid3 $pid4 $pid5 2>/dev/null
1857 # if we did not crash, success
1858 log_test 0 0 "IPv4 torture test"
1861 ipv4_res_grp_replace_loop()
1864 $IP nexthop replace id 102 group 100/101 type resilient
1865 done >/dev/null 2>&1
1877 echo "IPv4 runtime resilient nexthop group torture"
1878 echo "--------------------------------------------"
1880 check_nexthop_res_support
1881 if [ $? -eq $ksft_skip ]; then
1885 if [ ! -x "$(command -v mausezahn)" ]; then
1886 echo "SKIP: Could not run test; need mausezahn tool"
1890 run_cmd "$IP nexthop add id 100 via 172.16.1.2 dev veth1"
1891 run_cmd "$IP nexthop add id 101 via 172.16.2.2 dev veth3"
1892 run_cmd "$IP nexthop add id 102 group 100/101 type resilient buckets 512 idle_timer 0"
1893 run_cmd "$IP route add 172.16.101.1 nhid 102"
1894 run_cmd "$IP route add 172.16.101.2 nhid 102"
1896 ipv4_del_add_loop1 &
1898 ipv4_res_grp_replace_loop &
1900 ip netns exec me ping -f 172.16.101.1 >/dev/null 2>&1 &
1902 ip netns exec me ping -f 172.16.101.2 >/dev/null 2>&1 &
1904 ip netns exec me mausezahn veth1 \
1905 -B 172.16.101.2 -A 172.16.1.1 -c 0 \
1906 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 &
1910 kill -9 $pid1 $pid2 $pid3 $pid4 $pid5
1911 wait $pid1 $pid2 $pid3 $pid4 $pid5 2>/dev/null
1913 # if we did not crash, success
1914 log_test 0 0 "IPv4 resilient nexthop group torture test"
1920 echo "Basic functional tests"
1921 echo "----------------------"
1922 run_cmd "$IP nexthop ls"
1923 log_test $? 0 "List with nothing defined"
1925 run_cmd "$IP nexthop get id 1"
1926 log_test $? 2 "Nexthop get on non-existent id"
1928 # attempt to create nh without a device or gw - fails
1929 run_cmd "$IP nexthop add id 1"
1930 log_test $? 2 "Nexthop with no device or gateway"
1932 # attempt to create nh with down device - fails
1933 $IP li set veth1 down
1934 run_cmd "$IP nexthop add id 1 dev veth1"
1935 log_test $? 2 "Nexthop with down device"
1937 # create nh with linkdown device - fails
1939 ip -netns peer li set veth2 down
1940 run_cmd "$IP nexthop add id 1 dev veth1"
1941 log_test $? 2 "Nexthop with device that is linkdown"
1942 ip -netns peer li set veth2 up
1945 run_cmd "$IP nexthop add id 1 dev veth1"
1946 log_test $? 0 "Nexthop with device only"
1948 # create nh with duplicate id
1949 run_cmd "$IP nexthop add id 1 dev veth3"
1950 log_test $? 2 "Nexthop with duplicate id"
1953 run_cmd "$IP nexthop add id 2 blackhole"
1954 log_test $? 0 "Blackhole nexthop"
1956 # blackhole nexthop can not have other specs
1957 run_cmd "$IP nexthop replace id 2 blackhole dev veth1"
1958 log_test $? 2 "Blackhole nexthop with other attributes"
1960 # blackhole nexthop should not be affected by the state of the loopback
1962 run_cmd "$IP link set dev lo down"
1963 check_nexthop "id 2" "id 2 blackhole"
1964 log_test $? 0 "Blackhole nexthop with loopback device down"
1966 run_cmd "$IP link set dev lo up"
1972 run_cmd "$IP nexthop add id 101 group 1"
1973 log_test $? 0 "Create group"
1975 run_cmd "$IP nexthop add id 102 group 2"
1976 log_test $? 0 "Create group with blackhole nexthop"
1978 # multipath group can not have a blackhole as 1 path
1979 run_cmd "$IP nexthop add id 103 group 1/2"
1980 log_test $? 2 "Create multipath group where 1 path is a blackhole"
1982 # multipath group can not have a member replaced by a blackhole
1983 run_cmd "$IP nexthop replace id 2 dev veth3"
1984 run_cmd "$IP nexthop replace id 102 group 1/2"
1985 run_cmd "$IP nexthop replace id 2 blackhole"
1986 log_test $? 2 "Multipath group can not have a member replaced by blackhole"
1988 # attempt to create group with non-existent nexthop
1989 run_cmd "$IP nexthop add id 103 group 12"
1990 log_test $? 2 "Create group with non-existent nexthop"
1992 # attempt to create group with same nexthop
1993 run_cmd "$IP nexthop add id 103 group 1/1"
1994 log_test $? 2 "Create group with same nexthop multiple times"
1996 # replace nexthop with a group - fails
1997 run_cmd "$IP nexthop replace id 2 group 1"
1998 log_test $? 2 "Replace nexthop with nexthop group"
2000 # replace nexthop group with a nexthop - fails
2001 run_cmd "$IP nexthop replace id 101 dev veth1"
2002 log_test $? 2 "Replace nexthop group with nexthop"
2004 # nexthop group with other attributes fail
2005 run_cmd "$IP nexthop add id 104 group 1 dev veth1"
2006 log_test $? 2 "Nexthop group and device"
2008 # Tests to ensure that flushing works as expected.
2009 run_cmd "$IP nexthop add id 105 blackhole proto 99"
2010 run_cmd "$IP nexthop add id 106 blackhole proto 100"
2011 run_cmd "$IP nexthop add id 107 blackhole proto 99"
2012 run_cmd "$IP nexthop flush proto 99"
2013 check_nexthop "id 105" ""
2014 check_nexthop "id 106" "id 106 blackhole proto 100"
2015 check_nexthop "id 107" ""
2016 run_cmd "$IP nexthop flush proto 100"
2017 check_nexthop "id 106" ""
2019 run_cmd "$IP nexthop flush proto 100"
2020 log_test $? 0 "Test proto flush"
2022 run_cmd "$IP nexthop add id 104 group 1 blackhole"
2023 log_test $? 2 "Nexthop group and blackhole"
2025 $IP nexthop flush >/dev/null 2>&1
2027 # Test to ensure that flushing with a multi-part nexthop dump works as
2029 local batch_file=$(mktemp)
2031 for i in $(seq 1 $((64 * 1024))); do
2032 echo "nexthop add id $i blackhole" >> $batch_file
2036 $IP nexthop flush >/dev/null 2>&1
2037 [[ $($IP nexthop | wc -l) -eq 0 ]]
2038 log_test $? 0 "Large scale nexthop flushing"
2043 check_nexthop_buckets_balance()
2045 local nharg=$1; shift
2048 while (($# > 0)); do
2049 local selector=$1; shift
2050 local condition=$1; shift
2053 count=$($IP -j nexthop bucket ${nharg} ${selector} | jq length)
2054 (( $count $condition ))
2056 if ((ret != 0)); then
2067 echo "Basic resilient nexthop group functional tests"
2068 echo "----------------------------------------------"
2070 check_nexthop_res_support
2071 if [ $? -eq $ksft_skip ]; then
2075 run_cmd "$IP nexthop add id 1 dev veth1"
2078 # resilient nexthop group addition
2081 run_cmd "$IP nexthop add id 101 group 1 type resilient buckets 8"
2082 log_test $? 0 "Add a nexthop group with default parameters"
2084 run_cmd "$IP nexthop get id 101"
2085 check_nexthop "id 101" \
2086 "id 101 group 1 type resilient buckets 8 idle_timer 120 unbalanced_timer 0 unbalanced_time 0"
2087 log_test $? 0 "Get a nexthop group with default parameters"
2089 run_cmd "$IP nexthop add id 102 group 1 type resilient
2090 buckets 4 idle_timer 100 unbalanced_timer 5"
2091 run_cmd "$IP nexthop get id 102"
2092 check_nexthop "id 102" \
2093 "id 102 group 1 type resilient buckets 4 idle_timer 100 unbalanced_timer 5 unbalanced_time 0"
2094 log_test $? 0 "Get a nexthop group with non-default parameters"
2096 run_cmd "$IP nexthop add id 103 group 1 type resilient buckets 0"
2097 log_test $? 2 "Add a nexthop group with 0 buckets"
2100 # resilient nexthop group replacement
2103 run_cmd "$IP nexthop replace id 101 group 1 type resilient
2104 buckets 8 idle_timer 240 unbalanced_timer 80"
2105 log_test $? 0 "Replace nexthop group parameters"
2106 check_nexthop "id 101" \
2107 "id 101 group 1 type resilient buckets 8 idle_timer 240 unbalanced_timer 80 unbalanced_time 0"
2108 log_test $? 0 "Get a nexthop group after replacing parameters"
2110 run_cmd "$IP nexthop replace id 101 group 1 type resilient idle_timer 512"
2111 log_test $? 0 "Replace idle timer"
2112 check_nexthop "id 101" \
2113 "id 101 group 1 type resilient buckets 8 idle_timer 512 unbalanced_timer 80 unbalanced_time 0"
2114 log_test $? 0 "Get a nexthop group after replacing idle timer"
2116 run_cmd "$IP nexthop replace id 101 group 1 type resilient unbalanced_timer 256"
2117 log_test $? 0 "Replace unbalanced timer"
2118 check_nexthop "id 101" \
2119 "id 101 group 1 type resilient buckets 8 idle_timer 512 unbalanced_timer 256 unbalanced_time 0"
2120 log_test $? 0 "Get a nexthop group after replacing unbalanced timer"
2122 run_cmd "$IP nexthop replace id 101 group 1 type resilient"
2123 log_test $? 0 "Replace with no parameters"
2124 check_nexthop "id 101" \
2125 "id 101 group 1 type resilient buckets 8 idle_timer 512 unbalanced_timer 256 unbalanced_time 0"
2126 log_test $? 0 "Get a nexthop group after replacing no parameters"
2128 run_cmd "$IP nexthop replace id 101 group 1"
2129 log_test $? 2 "Replace nexthop group type - implicit"
2131 run_cmd "$IP nexthop replace id 101 group 1 type mpath"
2132 log_test $? 2 "Replace nexthop group type - explicit"
2134 run_cmd "$IP nexthop replace id 101 group 1 type resilient buckets 1024"
2135 log_test $? 2 "Replace number of nexthop buckets"
2137 check_nexthop "id 101" \
2138 "id 101 group 1 type resilient buckets 8 idle_timer 512 unbalanced_timer 256 unbalanced_time 0"
2139 log_test $? 0 "Get a nexthop group after replacing with invalid parameters"
2142 # resilient nexthop buckets dump
2145 $IP nexthop flush >/dev/null 2>&1
2146 run_cmd "$IP nexthop add id 1 dev veth1"
2147 run_cmd "$IP nexthop add id 2 dev veth3"
2148 run_cmd "$IP nexthop add id 101 group 1/2 type resilient buckets 4"
2149 run_cmd "$IP nexthop add id 201 group 1/2"
2151 check_nexthop_bucket "" \
2152 "id 101 index 0 nhid 2 id 101 index 1 nhid 2 id 101 index 2 nhid 1 id 101 index 3 nhid 1"
2153 log_test $? 0 "Dump all nexthop buckets"
2155 check_nexthop_bucket "list id 101" \
2156 "id 101 index 0 nhid 2 id 101 index 1 nhid 2 id 101 index 2 nhid 1 id 101 index 3 nhid 1"
2157 log_test $? 0 "Dump all nexthop buckets in a group"
2160 (( $($IP -j nexthop bucket list id 101 |
2161 jq '[.[] | select(.bucket.idle_time > 0 and
2162 .bucket.idle_time < 2)] | length') == 4 ))
2163 log_test $? 0 "All nexthop buckets report a positive near-zero idle time"
2165 check_nexthop_bucket "list dev veth1" \
2166 "id 101 index 2 nhid 1 id 101 index 3 nhid 1"
2167 log_test $? 0 "Dump all nexthop buckets with a specific nexthop device"
2169 check_nexthop_bucket "list nhid 2" \
2170 "id 101 index 0 nhid 2 id 101 index 1 nhid 2"
2171 log_test $? 0 "Dump all nexthop buckets with a specific nexthop identifier"
2173 run_cmd "$IP nexthop bucket list id 111"
2174 log_test $? 2 "Dump all nexthop buckets in a non-existent group"
2176 run_cmd "$IP nexthop bucket list id 201"
2177 log_test $? 2 "Dump all nexthop buckets in a non-resilient group"
2179 run_cmd "$IP nexthop bucket list dev bla"
2180 log_test $? 255 "Dump all nexthop buckets using a non-existent device"
2182 run_cmd "$IP nexthop bucket list groups"
2183 log_test $? 255 "Dump all nexthop buckets with invalid 'groups' keyword"
2185 run_cmd "$IP nexthop bucket list fdb"
2186 log_test $? 255 "Dump all nexthop buckets with invalid 'fdb' keyword"
2189 # resilient nexthop buckets get requests
2192 check_nexthop_bucket "get id 101 index 0" "id 101 index 0 nhid 2"
2193 log_test $? 0 "Get a valid nexthop bucket"
2195 run_cmd "$IP nexthop bucket get id 101 index 999"
2196 log_test $? 2 "Get a nexthop bucket with valid group, but invalid index"
2198 run_cmd "$IP nexthop bucket get id 201 index 0"
2199 log_test $? 2 "Get a nexthop bucket from a non-resilient group"
2201 run_cmd "$IP nexthop bucket get id 999 index 0"
2202 log_test $? 2 "Get a nexthop bucket from a non-existent group"
2205 # tests for bucket migration
2208 $IP nexthop flush >/dev/null 2>&1
2210 run_cmd "$IP nexthop add id 1 dev veth1"
2211 run_cmd "$IP nexthop add id 2 dev veth3"
2212 run_cmd "$IP nexthop add id 101
2213 group 1/2 type resilient buckets 10
2214 idle_timer 1 unbalanced_timer 20"
2216 check_nexthop_buckets_balance "list id 101" \
2219 log_test $? 0 "Initial bucket allocation"
2221 run_cmd "$IP nexthop replace id 101
2222 group 1,2/2,3 type resilient"
2223 check_nexthop_buckets_balance "list id 101" \
2226 log_test $? 0 "Bucket allocation after replace"
2228 # Check that increase in idle timer does not make buckets appear busy.
2229 run_cmd "$IP nexthop replace id 101
2230 group 1,2/2,3 type resilient
2232 run_cmd "$IP nexthop replace id 101
2233 group 1/2 type resilient"
2234 check_nexthop_buckets_balance "list id 101" \
2237 log_test $? 0 "Buckets migrated after idle timer change"
2239 $IP nexthop flush >/dev/null 2>&1
2242 ################################################################################
2248 usage: ${0##*/} OPTS
2250 -t <test> Test(s) to run (default: all)
2251 (options: $ALL_TESTS)
2255 -P Pause after each test before cleanup
2256 -v verbose mode (show commands and output)
2260 -n num Number of nexthops to target
2261 -N Use new style to install routes in DUT
2267 ################################################################################
2270 while getopts :t:pP46hv:w: o
2274 4) TESTS=${IPV4_TESTS};;
2275 6) TESTS=${IPV6_TESTS};;
2276 p) PAUSE_ON_FAIL=yes;;
2278 v) VERBOSE=$(($VERBOSE + 1));;
2279 w) PING_TIMEOUT=$OPTARG;;
2285 # make sure we don't pause twice
2286 [ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
2288 if [ "$(id -u)" -ne 0 ];then
2289 echo "SKIP: Need root privileges"
2293 if [ ! -x "$(command -v ip)" ]; then
2294 echo "SKIP: Could not run test without ip tool"
2298 ip help 2>&1 | grep -q nexthop
2299 if [ $? -ne 0 ]; then
2300 echo "SKIP: iproute2 too old, missing nexthop command"
2304 out=$(ip nexthop ls 2>&1 | grep -q "Operation not supported")
2305 if [ $? -eq 0 ]; then
2306 echo "SKIP: kernel lacks nexthop support"
2313 none) IP="ip -netns peer"; setup; exit 0;;
2314 *) setup; $t; cleanup;;
2318 if [ "$TESTS" != "none" ]; then
2319 printf "\nTests passed: %3d\n" ${nsuccess}
2320 printf "Tests failed: %3d\n" ${nfail}