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 that gretap and ip6gretap mirroring works when the other tunnel endpoint
8# is reachable through a next-hop route (as opposed to directly-attached route).
9
10ALL_TESTS="
11 test_gretap
12 test_ip6gretap
13"
14
15NUM_NETIFS=6
16source lib.sh
17source mirror_lib.sh
18source mirror_gre_lib.sh
19source mirror_gre_topo_lib.sh
20
21setup_prepare()
22{
23 h1=${NETIFS[p1]}
24 swp1=${NETIFS[p2]}
25
26 swp2=${NETIFS[p3]}
27 h2=${NETIFS[p4]}
28
29 swp3=${NETIFS[p5]}
30 h3=${NETIFS[p6]}
31
32 sysctl_set net.ipv4.conf.all.rp_filter 0
33 sysctl_set net.ipv4.conf.$h3.rp_filter 0
34
35 vrf_prepare
36 mirror_gre_topo_create
37
38 sysctl_set net.ipv4.conf.v$h3.rp_filter 0
39
40 ip address add dev $swp3 192.0.2.161/28
41 ip address add dev $h3 192.0.2.162/28
42 ip address add dev gt4 192.0.2.129/32
43 ip address add dev h3-gt4 192.0.2.130/32
44
45 # IPv6 route can't be added after address. Such routes are rejected due
46 # to the gateway address having been configured on the local system. It
47 # works the other way around though.
48 ip address add dev $swp3 2001:db8:4::1/64
49 ip -6 route add 2001:db8:2::2/128 via 2001:db8:4::2
50 ip address add dev $h3 2001:db8:4::2/64
51 ip address add dev gt6 2001:db8:2::1
52 ip address add dev h3-gt6 2001:db8:2::2
53}
54
55cleanup()
56{
57 pre_cleanup
58
59 ip -6 route del 2001:db8:2::2/128 via 2001:db8:4::2
60 ip address del dev $h3 2001:db8:4::2/64
61 ip address del dev $swp3 2001:db8:4::1/64
62
63 ip address del dev $h3 192.0.2.162/28
64 ip address del dev $swp3 192.0.2.161/28
65
66 sysctl_restore net.ipv4.conf.v$h3.rp_filter 0
67
68 mirror_gre_topo_destroy
69 vrf_cleanup
70
71 sysctl_restore net.ipv4.conf.$h3.rp_filter
72 sysctl_restore net.ipv4.conf.all.rp_filter
73}
74
75test_gretap()
76{
77 RET=0
78 mirror_install $swp1 ingress gt4 "matchall $tcflags"
79
80 # For IPv4, test that there's no mirroring without the route directing
81 # the traffic to tunnel remote address. Then add it and test that
82 # mirroring starts. For IPv6 we can't test this due to the limitation
83 # that routes for locally-specified IPv6 addresses can't be added.
84 fail_test_span_gre_dir gt4 ingress
85
86 ip route add 192.0.2.130/32 via 192.0.2.162
87 quick_test_span_gre_dir gt4 ingress
88 ip route del 192.0.2.130/32 via 192.0.2.162
89
90 mirror_uninstall $swp1 ingress
91 log_test "mirror to gre with next-hop remote ($tcflags)"
92}
93
94test_ip6gretap()
95{
96 RET=0
97
98 mirror_install $swp1 ingress gt6 "matchall $tcflags"
99 quick_test_span_gre_dir gt6 ingress
100 mirror_uninstall $swp1 ingress
101
102 log_test "mirror to ip6gre with next-hop remote ($tcflags)"
103}
104
105test_all()
106{
107 slow_path_trap_install $swp1 ingress
108 slow_path_trap_install $swp1 egress
109
110 tests_run
111
112 slow_path_trap_uninstall $swp1 egress
113 slow_path_trap_uninstall $swp1 ingress
114}
115
116trap cleanup EXIT
117
118setup_prepare
119setup_wait
120
121tcflags="skip_hw"
122test_all
123
124if ! tc_offload_check; then
125 echo "WARN: Could not test offloaded functionality"
126else
127 tcflags="skip_sw"
128 test_all
129fi
130
131exit $EXIT_STATUS