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