diff options
Diffstat (limited to 'tools/testing/selftests/net/forwarding/bridge_igmp.sh')
| -rwxr-xr-x | tools/testing/selftests/net/forwarding/bridge_igmp.sh | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/forwarding/bridge_igmp.sh b/tools/testing/selftests/net/forwarding/bridge_igmp.sh new file mode 100755 index 000000000000..88d2472ba151 --- /dev/null +++ b/tools/testing/selftests/net/forwarding/bridge_igmp.sh @@ -0,0 +1,152 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +ALL_TESTS="reportleave_test" +NUM_NETIFS=4 +CHECK_TC="yes" +TEST_GROUP="239.10.10.10" +TEST_GROUP_MAC="01:00:5e:0a:0a:0a" +source lib.sh + +h1_create() +{ + simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64 +} + +h1_destroy() +{ + simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64 +} + +h2_create() +{ + simple_if_init $h2 192.0.2.2/24 2001:db8:1::2/64 +} + +h2_destroy() +{ + simple_if_fini $h2 192.0.2.2/24 2001:db8:1::2/64 +} + +switch_create() +{ + ip link add dev br0 type bridge mcast_snooping 1 mcast_querier 1 + + ip link set dev $swp1 master br0 + ip link set dev $swp2 master br0 + + ip link set dev br0 up + ip link set dev $swp1 up + ip link set dev $swp2 up +} + +switch_destroy() +{ + ip link set dev $swp2 down + ip link set dev $swp1 down + + ip link del dev br0 +} + +setup_prepare() +{ + h1=${NETIFS[p1]} + swp1=${NETIFS[p2]} + + swp2=${NETIFS[p3]} + h2=${NETIFS[p4]} + + vrf_prepare + + h1_create + h2_create + + switch_create +} + +cleanup() +{ + pre_cleanup + + switch_destroy + + # Always cleanup the mcast group + ip address del dev $h2 $TEST_GROUP/32 2>&1 1>/dev/null + + h2_destroy + h1_destroy + + vrf_cleanup +} + +# return 0 if the packet wasn't seen on host2_if or 1 if it was +mcast_packet_test() +{ + local mac=$1 + local ip=$2 + local host1_if=$3 + local host2_if=$4 + local seen=0 + + # Add an ACL on `host2_if` which will tell us whether the packet + # was received by it or not. + tc qdisc add dev $host2_if ingress + tc filter add dev $host2_if ingress protocol ip pref 1 handle 101 \ + flower dst_mac $mac action drop + + $MZ $host1_if -c 1 -p 64 -b $mac -B $ip -t udp "dp=4096,sp=2048" -q + sleep 1 + + tc -j -s filter show dev $host2_if ingress \ + | jq -e ".[] | select(.options.handle == 101) \ + | select(.options.actions[0].stats.packets == 1)" &> /dev/null + if [[ $? -eq 0 ]]; then + seen=1 + fi + + tc filter del dev $host2_if ingress protocol ip pref 1 handle 101 flower + tc qdisc del dev $host2_if ingress + + return $seen +} + +reportleave_test() +{ + RET=0 + ip address add dev $h2 $TEST_GROUP/32 autojoin + check_err $? "Could not join $TEST_GROUP" + + sleep 5 + bridge mdb show dev br0 | grep $TEST_GROUP 1>/dev/null + check_err $? "Report didn't create mdb entry for $TEST_GROUP" + + mcast_packet_test $TEST_GROUP_MAC $TEST_GROUP $h1 $h2 + check_fail $? "Traffic to $TEST_GROUP wasn't forwarded" + + log_test "IGMP report $TEST_GROUP" + + RET=0 + bridge mdb show dev br0 | grep $TEST_GROUP 1>/dev/null + check_err $? "mdb entry for $TEST_GROUP is missing" + + ip address del dev $h2 $TEST_GROUP/32 + check_err $? "Could not leave $TEST_GROUP" + + sleep 5 + bridge mdb show dev br0 | grep $TEST_GROUP 1>/dev/null + check_fail $? "Leave didn't delete mdb entry for $TEST_GROUP" + + mcast_packet_test $TEST_GROUP_MAC $TEST_GROUP $h1 $h2 + check_err $? "Traffic to $TEST_GROUP was forwarded without mdb entry" + + log_test "IGMP leave $TEST_GROUP" +} + +trap cleanup EXIT + +setup_prepare +setup_wait + +tests_run + +exit $EXIT_STATUS |