tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 prot=$1; shift
67 local what=$1; shift
68
69 local swp3mac=$(mac_get $swp3)
70 local h3mac=$(mac_get $h3)
71
72 RET=0
73
74 mirror_install $swp1 $direction $tundev "matchall $tcflags"
75 tc filter add dev $h3 ingress pref 77 prot $prot \
76 flower ip_proto 0x2f src_mac $swp3mac dst_mac $h3mac \
77 action pass
78
79 mirror_test v$h1 192.0.2.1 192.0.2.2 $h3 77 10
80
81 tc filter del dev $h3 ingress pref 77
82 mirror_uninstall $swp1 $direction
83
84 log_test "$direction $what: envelope MAC ($tcflags)"
85}
86
87test_two_spans()
88{
89 RET=0
90
91 mirror_install $swp1 ingress gt4 "matchall $tcflags"
92 mirror_install $swp1 egress gt6 "matchall $tcflags"
93 quick_test_span_gre_dir gt4 ingress
94 quick_test_span_gre_dir gt6 egress
95
96 mirror_uninstall $swp1 ingress
97 fail_test_span_gre_dir gt4 ingress
98 quick_test_span_gre_dir gt6 egress
99
100 mirror_install $swp1 ingress gt4 "matchall $tcflags"
101 mirror_uninstall $swp1 egress
102 quick_test_span_gre_dir gt4 ingress
103 fail_test_span_gre_dir gt6 egress
104
105 mirror_uninstall $swp1 ingress
106 log_test "two simultaneously configured mirrors ($tcflags)"
107}
108
109test_gretap()
110{
111 full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap"
112 full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap"
113}
114
115test_ip6gretap()
116{
117 full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap"
118 full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap"
119}
120
121test_gretap_mac()
122{
123 test_span_gre_mac gt4 ingress ip "mirror to gretap"
124 test_span_gre_mac gt4 egress ip "mirror to gretap"
125}
126
127test_ip6gretap_mac()
128{
129 test_span_gre_mac gt6 ingress ipv6 "mirror to ip6gretap"
130 test_span_gre_mac gt6 egress ipv6 "mirror to ip6gretap"
131}
132
133test_all()
134{
135 slow_path_trap_install $swp1 ingress
136 slow_path_trap_install $swp1 egress
137
138 tests_run
139
140 slow_path_trap_uninstall $swp1 egress
141 slow_path_trap_uninstall $swp1 ingress
142}
143
144trap cleanup EXIT
145
146setup_prepare
147setup_wait
148
149tcflags="skip_hw"
150test_all
151
152if ! tc_offload_check; then
153 echo "WARN: Could not test offloaded functionality"
154else
155 tcflags="skip_sw"
156 test_all
157fi
158
159exit $EXIT_STATUS