name : bridge_mdb_port_down.sh #!/bin/bash # SPDX-License-Identifier: GPL-2.0 # # Verify that permanent mdb entries can be added to and deleted from bridge # interfaces that are down, and works correctly when done so. ALL_TESTS="add_del_to_port_down" NUM_NETIFS=4 TEST_GROUP="239.10.10.10" TEST_GROUP_MAC="01:00:5e:0a:0a:0a" source lib.sh add_del_to_port_down() { RET=0 ip link set dev $swp2 down bridge mdb add dev br0 port "$swp2" grp $TEST_GROUP permanent 2>/dev/null check_err $? "Failed adding mdb entry" ip link set dev $swp2 up setup_wait_dev $swp2 mcast_packet_test $TEST_GROUP_MAC 192.0.2.1 $TEST_GROUP $h1 $h2 check_fail $? "Traffic to $TEST_GROUP wasn't forwarded" ip link set dev $swp2 down bridge mdb show dev br0 | grep -q "$TEST_GROUP permanent" 2>/dev/null check_err $? "MDB entry did not persist after link up/down" bridge mdb del dev br0 port "$swp2" grp $TEST_GROUP 2>/dev/null check_err $? "Failed deleting mdb entry" ip link set dev $swp2 up setup_wait_dev $swp2 mcast_packet_test $TEST_GROUP_MAC 192.0.2.1 $TEST_GROUP $h1 $h2 check_err $? "Traffic to $TEST_GROUP was forwarded after entry removed" log_test "MDB add/del entry to port with state down " } 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() { # Enable multicast filtering 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 bridge link set dev $swp2 mcast_flood off # Bridge currently has a "grace time" at creation time before it # forwards multicast according to the mdb. Since we disable the # mcast_flood setting per port sleep 10 } switch_destroy() { ip link set dev $swp1 down ip link set dev $swp2 down ip link del dev br0 } setup_prepare() { h1=${NETIFS[p1]} swp1=${NETIFS[p2]} swp2=${NETIFS[p3]} h2=${NETIFS[p4]} vrf_prepare h1_create h2_create switch_create } cleanup() { pre_cleanup switch_destroy h1_destroy h2_destroy vrf_cleanup } trap cleanup EXIT setup_prepare tests_run exit $EXIT_STATUS