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
119