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|
#!/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
|
