1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3
4# This test uses standard topology for testing gretap. See
5# mirror_gre_topo_lib.sh for more details.
6#
7# Test for "tc action mirred egress mirror" when the underlay route points at a
8# bridge device without vlan filtering (802.1d). The device attached to that
9# bridge is a VLAN.
10
11ALL_TESTS="
12	test_gretap
13	test_ip6gretap
14	test_gretap_stp
15	test_ip6gretap_stp
16"
17
18NUM_NETIFS=6
19source lib.sh
20source mirror_lib.sh
21source mirror_gre_lib.sh
22source mirror_gre_topo_lib.sh
23
24setup_prepare()
25{
26	h1=${NETIFS[p1]}
27	swp1=${NETIFS[p2]}
28
29	swp2=${NETIFS[p3]}
30	h2=${NETIFS[p4]}
31
32	swp3=${NETIFS[p5]}
33	h3=${NETIFS[p6]}
34
35	vrf_prepare
36	mirror_gre_topo_create
37
38	ip link add name br2 type bridge vlan_filtering 0
39	ip link set dev br2 up
40
41	vlan_create $swp3 555
42
43	ip link set dev $swp3.555 master br2
44	ip route add 192.0.2.130/32 dev br2
45	ip -6 route add 2001:db8:2::2/128 dev br2
46
47	ip address add dev br2 192.0.2.129/32
48	ip address add dev br2 2001:db8:2::1/128
49
50	vlan_create $h3 555 v$h3 192.0.2.130/28 2001:db8:2::2/64
51}
52
53cleanup()
54{
55	pre_cleanup
56
57	vlan_destroy $h3 555
58	ip link del dev br2
59	vlan_destroy $swp3 555
60
61	mirror_gre_topo_destroy
62	vrf_cleanup
63}
64
65test_vlan_match()
66{
67	local tundev=$1; shift
68	local vlan_match=$1; shift
69	local what=$1; shift
70
71	full_test_span_gre_dir_vlan $tundev ingress "$vlan_match" 8 0 "$what"
72	full_test_span_gre_dir_vlan $tundev egress "$vlan_match" 0 8 "$what"
73}
74
75test_gretap()
76{
77	test_vlan_match gt4 'skip_hw vlan_id 555 vlan_ethtype ip' \
78			"mirror to gretap"
79}
80
81test_ip6gretap()
82{
83	test_vlan_match gt6 'skip_hw vlan_id 555 vlan_ethtype ipv6' \
84			"mirror to ip6gretap"
85}
86
87test_gretap_stp()
88{
89	# Sometimes after mirror installation, the neighbor's state is not valid.
90	# The reason is that there is no SW datapath activity related to the
91	# neighbor for the remote GRE address. Therefore whether the corresponding
92	# neighbor will be valid is a matter of luck, and the test is thus racy.
93	# Set the neighbor's state to permanent, so it would be always valid.
94	ip neigh replace 192.0.2.130 lladdr $(mac_get $h3) \
95		nud permanent dev br2
96	full_test_span_gre_stp gt4 $swp3.555 "mirror to gretap"
97}
98
99test_ip6gretap_stp()
100{
101	ip neigh replace 2001:db8:2::2 lladdr $(mac_get $h3) \
102		nud permanent dev br2
103	full_test_span_gre_stp gt6 $swp3.555 "mirror to ip6gretap"
104}
105
106test_all()
107{
108	slow_path_trap_install $swp1 ingress
109	slow_path_trap_install $swp1 egress
110
111	tests_run
112
113	slow_path_trap_uninstall $swp1 egress
114	slow_path_trap_uninstall $swp1 ingress
115}
116
117trap cleanup EXIT
118
119setup_prepare
120setup_wait
121
122tcflags="skip_hw"
123test_all
124
125if ! tc_offload_check; then
126	echo "WARN: Could not test offloaded functionality"
127else
128	tcflags="skip_sw"
129	test_all
130fi
131
132exit $EXIT_STATUS
133