bridge_mdb_port_down.sh

  1#!/bin/bash
  2# SPDX-License-Identifier: GPL-2.0
  3#
  4# Verify that permanent mdb entries can be added to and deleted from bridge
  5# interfaces that are down, and works correctly when done so.
  6
  7ALL_TESTS="add_del_to_port_down"
  8NUM_NETIFS=4
  9
 10TEST_GROUP="239.10.10.10"
 11TEST_GROUP_MAC="01:00:5e:0a:0a:0a"
 12
 13source lib.sh
 14
 15
 16add_del_to_port_down() {
 17	RET=0
 18
 19	ip link set dev $swp2 down
 20	bridge mdb add dev br0 port "$swp2" grp $TEST_GROUP permanent 2>/dev/null
 21	check_err $? "Failed adding mdb entry"
 22
 23	ip link set dev $swp2 up
 24	setup_wait_dev $swp2
 25	mcast_packet_test $TEST_GROUP_MAC 192.0.2.1 $TEST_GROUP $h1 $h2
 26	check_fail $? "Traffic to $TEST_GROUP wasn't forwarded"
 27
 28	ip link set dev $swp2 down
 29	bridge mdb show dev br0 | grep -q "$TEST_GROUP permanent" 2>/dev/null
 30	check_err $? "MDB entry did not persist after link up/down"
 31
 32	bridge mdb del dev br0 port "$swp2" grp $TEST_GROUP 2>/dev/null
 33	check_err $? "Failed deleting mdb entry"
 34
 35	ip link set dev $swp2 up
 36	setup_wait_dev $swp2
 37	mcast_packet_test $TEST_GROUP_MAC 192.0.2.1 $TEST_GROUP $h1 $h2
 38	check_err $? "Traffic to $TEST_GROUP was forwarded after entry removed"
 39
 40	log_test "MDB add/del entry to port with state down "
 41}
 42
 43h1_create()
 44{
 45	simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
 46}
 47
 48h1_destroy()
 49{
 50	simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
 51}
 52
 53h2_create()
 54{
 55	simple_if_init $h2 192.0.2.2/24 2001:db8:1::2/64
 56}
 57
 58h2_destroy()
 59{
 60	simple_if_fini $h2 192.0.2.2/24 2001:db8:1::2/64
 61}
 62
 63switch_create()
 64{
 65	# Enable multicast filtering
 66	ip link add dev br0 type bridge mcast_snooping 1 mcast_querier 1
 67
 68	ip link set dev $swp1 master br0
 69	ip link set dev $swp2 master br0
 70
 71	ip link set dev br0 up
 72	ip link set dev $swp1 up
 73
 74	bridge link set dev $swp2 mcast_flood off
 75	# Bridge currently has a "grace time" at creation time before it
 76	# forwards multicast according to the mdb. Since we disable the
 77	# mcast_flood setting per port
 78	sleep 10
 79}
 80
 81switch_destroy()
 82{
 83	ip link set dev $swp1 down
 84	ip link set dev $swp2 down
 85	ip link del dev br0
 86}
 87
 88setup_prepare()
 89{
 90	h1=${NETIFS[p1]}
 91	swp1=${NETIFS[p2]}
 92
 93	swp2=${NETIFS[p3]}
 94	h2=${NETIFS[p4]}
 95
 96	vrf_prepare
 97
 98	h1_create
 99	h2_create
100	switch_create
101}
102
103cleanup()
104{
105	pre_cleanup
106
107	switch_destroy
108	h1_destroy
109	h2_destroy
110
111	vrf_cleanup
112}
113
114trap cleanup EXIT
115
116setup_prepare
117tests_run
118exit $EXIT_STATUS