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 mirroring to gretap and ip6gretap, such that the neighbor entry for
8# the tunnel remote address has invalid address at the time that the mirroring
9# is set up. Later on, the neighbor is deleted and it is expected to be
10# reinitialized using the usual ARP process, and the mirroring offload updated.
11
12ALL_TESTS="
13	test_gretap
14	test_ip6gretap
15"
16
17NUM_NETIFS=6
18source lib.sh
19source mirror_lib.sh
20source mirror_gre_lib.sh
21source mirror_gre_topo_lib.sh
22
23setup_prepare()
24{
25	h1=${NETIFS[p1]}
26	swp1=${NETIFS[p2]}
27
28	swp2=${NETIFS[p3]}
29	h2=${NETIFS[p4]}
30
31	swp3=${NETIFS[p5]}
32	h3=${NETIFS[p6]}
33
34	vrf_prepare
35	mirror_gre_topo_create
36
37	ip address add dev $swp3 192.0.2.129/28
38	ip address add dev $h3 192.0.2.130/28
39
40	ip address add dev $swp3 2001:db8:2::1/64
41	ip address add dev $h3 2001:db8:2::2/64
42}
43
44cleanup()
45{
46	pre_cleanup
47
48	ip address del dev $h3 2001:db8:2::2/64
49	ip address del dev $swp3 2001:db8:2::1/64
50
51	ip address del dev $h3 192.0.2.130/28
52	ip address del dev $swp3 192.0.2.129/28
53
54	mirror_gre_topo_destroy
55	vrf_cleanup
56}
57
58test_span_gre_neigh()
59{
60	local addr=$1; shift
61	local tundev=$1; shift
62	local direction=$1; shift
63	local what=$1; shift
64
65	RET=0
66
67	ip neigh replace dev $swp3 $addr lladdr 00:11:22:33:44:55
68	mirror_install $swp1 $direction $tundev "matchall $tcflags"
69	fail_test_span_gre_dir $tundev ingress
70	ip neigh del dev $swp3 $addr
71	quick_test_span_gre_dir $tundev ingress
72	mirror_uninstall $swp1 $direction
73
74	log_test "$direction $what: neighbor change ($tcflags)"
75}
76
77test_gretap()
78{
79	test_span_gre_neigh 192.0.2.130 gt4 ingress "mirror to gretap"
80	test_span_gre_neigh 192.0.2.130 gt4 egress "mirror to gretap"
81}
82
83test_ip6gretap()
84{
85	test_span_gre_neigh 2001:db8:2::2 gt6 ingress "mirror to ip6gretap"
86	test_span_gre_neigh 2001:db8:2::2 gt6 egress "mirror to ip6gretap"
87}
88
89test_all()
90{
91	slow_path_trap_install $swp1 ingress
92	slow_path_trap_install $swp1 egress
93
94	tests_run
95
96	slow_path_trap_uninstall $swp1 egress
97	slow_path_trap_uninstall $swp1 ingress
98}
99
100trap cleanup EXIT
101
102setup_prepare
103setup_wait
104
105tcflags="skip_hw"
106test_all
107
108if ! tc_offload_check; then
109	echo "WARN: Could not test offloaded functionality"
110else
111	tcflags="skip_sw"
112	test_all
113fi
114
115exit $EXIT_STATUS
116