xref: /linux/tools/testing/selftests/net/forwarding/mirror_gre.sh (revision a1ff5a7d78a036d6c2178ee5acd6ba4946243800) 
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 device to mirror to is a
8# gretap or ip6gretap netdevice. Expect that the packets come out encapsulated,
9# and another gretap / ip6gretap netdevice is then capable of decapsulating the
10# traffic. Test that the payload is what is expected (ICMP ping request or
11# reply, depending on test).
12
13ALL_TESTS="
14	test_gretap
15	test_ip6gretap
16	test_gretap_mac
17	test_ip6gretap_mac
18	test_two_spans
19"
20
21NUM_NETIFS=6
22source lib.sh
23source mirror_lib.sh
24source mirror_gre_lib.sh
25source mirror_gre_topo_lib.sh
26
27setup_prepare()
28{
29	h1=${NETIFS[p1]}
30	swp1=${NETIFS[p2]}
31
32	swp2=${NETIFS[p3]}
33	h2=${NETIFS[p4]}
34
35	swp3=${NETIFS[p5]}
36	h3=${NETIFS[p6]}
37
38	vrf_prepare
39	mirror_gre_topo_create
40
41	ip address add dev $swp3 192.0.2.129/28
42	ip address add dev $h3 192.0.2.130/28
43
44	ip address add dev $swp3 2001:db8:2::1/64
45	ip address add dev $h3 2001:db8:2::2/64
46}
47
48cleanup()
49{
50	pre_cleanup
51
52	ip address del dev $h3 2001:db8:2::2/64
53	ip address del dev $swp3 2001:db8:2::1/64
54
55	ip address del dev $h3 192.0.2.130/28
56	ip address del dev $swp3 192.0.2.129/28
57
58	mirror_gre_topo_destroy
59	vrf_cleanup
60}
61
62test_span_gre_mac()
63{
64	local tundev=$1; shift
65	local direction=$1; shift
66	local what=$1; shift
67
68	case "$direction" in
69	ingress) local src_mac=$(mac_get $h1); local dst_mac=$(mac_get $h2)
70		;;
71	egress) local src_mac=$(mac_get $h2); local dst_mac=$(mac_get $h1)
72		;;
73	esac
74
75	RET=0
76
77	mirror_install $swp1 $direction $tundev "matchall"
78	icmp_capture_install h3-${tundev} "src_mac $src_mac dst_mac $dst_mac"
79
80	mirror_test v$h1 192.0.2.1 192.0.2.2 h3-${tundev} 100 10
81
82	icmp_capture_uninstall h3-${tundev}
83	mirror_uninstall $swp1 $direction
84
85	log_test "$direction $what: envelope MAC"
86}
87
88test_two_spans()
89{
90	RET=0
91
92	mirror_install $swp1 ingress gt4 "matchall"
93	mirror_install $swp1 egress gt6 "matchall"
94	quick_test_span_gre_dir gt4 8 0
95	quick_test_span_gre_dir gt6 0 8
96
97	mirror_uninstall $swp1 ingress
98	fail_test_span_gre_dir gt4 8 0
99	quick_test_span_gre_dir gt6 0 8
100
101	mirror_install $swp1 ingress gt4 "matchall"
102	mirror_uninstall $swp1 egress
103	quick_test_span_gre_dir gt4 8 0
104	fail_test_span_gre_dir gt6 0 8
105
106	mirror_uninstall $swp1 ingress
107	log_test "two simultaneously configured mirrors"
108}
109
110test_gretap()
111{
112	full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap"
113	full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap"
114}
115
116test_ip6gretap()
117{
118	full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap"
119	full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap"
120}
121
122test_gretap_mac()
123{
124	test_span_gre_mac gt4 ingress "mirror to gretap"
125	test_span_gre_mac gt4 egress "mirror to gretap"
126}
127
128test_ip6gretap_mac()
129{
130	test_span_gre_mac gt6 ingress "mirror to ip6gretap"
131	test_span_gre_mac gt6 egress "mirror to ip6gretap"
132}
133
134trap cleanup EXIT
135
136setup_prepare
137setup_wait
138
139tests_run
140
141exit $EXIT_STATUS
142