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# +---------------------+ +---------------------+
5# | H1 | | H2 |
6# | + $h1 | | $h2 + |
7# | | 192.0.2.1/28 | | 192.0.2.2/28 | |
8# +-----|---------------+ +---------------|-----+
9# | |
10# +-----|-------------------------------------------------------------|-----+
11# | SW o--> mirror | |
12# | +---|-------------------------------------------------------------|---+ |
13# | | + $swp1 BR $swp2 + | |
14# | +---------------------------------------------------------------------+ |
15# | |
16# | +---------------------------------------------------------------------+ |
17# | | OL + gt6 (ip6gretap) + gt4 (gretap) | |
18# | | : loc=2001:db8:2::1 : loc=192.0.2.129 | |
19# | | : rem=2001:db8:2::2 : rem=192.0.2.130 | |
20# | | : ttl=100 : ttl=100 | |
21# | | : tos=inherit : tos=inherit | |
22# | +-------------------------:--|-------------------:--|-----------------+ |
23# | : | : | |
24# | +-------------------------:--|-------------------:--|-----------------+ |
25# | | UL : |,---------------------' | |
26# | | + $swp3 : || : | |
27# | | | 192.0.2.129/28 : vv : | |
28# | | | 2001:db8:2::1/64 : + ul (dummy) : | |
29# | +---|---------------------:----------------------:--------------------+ |
30# +-----|---------------------:----------------------:----------------------+
31# | : :
32# +-----|---------------------:----------------------:----------------------+
33# | H3 + $h3 + h3-gt6 (ip6gretap) + h3-gt4 (gretap) |
34# | 192.0.2.130/28 loc=2001:db8:2::2 loc=192.0.2.130 |
35# | 2001:db8:2::2/64 rem=2001:db8:2::1 rem=192.0.2.129 |
36# | ttl=100 ttl=100 |
37# | tos=inherit tos=inherit |
38# | |
39# +-------------------------------------------------------------------------+
40#
41# This tests mirroring to gretap and ip6gretap configured in an overlay /
42# underlay manner, i.e. with a bound dummy device that marks underlay VRF where
43# the encapsulated packed should be routed.
44
45ALL_TESTS="
46 test_gretap
47 test_ip6gretap
48"
49
50NUM_NETIFS=6
51source lib.sh
52source mirror_lib.sh
53source mirror_gre_lib.sh
54
55h1_create()
56{
57 simple_if_init $h1 192.0.2.1/28
58}
59
60h1_destroy()
61{
62 simple_if_fini $h1 192.0.2.1/28
63}
64
65h2_create()
66{
67 simple_if_init $h2 192.0.2.2/28
68}
69
70h2_destroy()
71{
72 simple_if_fini $h2 192.0.2.2/28
73}
74
75h3_create()
76{
77 simple_if_init $h3 192.0.2.130/28 2001:db8:2::2/64
78
79 tunnel_create h3-gt4 gretap 192.0.2.130 192.0.2.129
80 ip link set h3-gt4 vrf v$h3
81 matchall_sink_create h3-gt4
82
83 tunnel_create h3-gt6 ip6gretap 2001:db8:2::2 2001:db8:2::1
84 ip link set h3-gt6 vrf v$h3
85 matchall_sink_create h3-gt6
86}
87
88h3_destroy()
89{
90 tunnel_destroy h3-gt6
91 tunnel_destroy h3-gt4
92
93 simple_if_fini $h3 192.0.2.130/28 2001:db8:2::2/64
94}
95
96switch_create()
97{
98 # Bridge between H1 and H2.
99
100 ip link add name br1 type bridge vlan_filtering 1
101 ip link set dev br1 addrgenmode none
102 ip link set dev br1 up
103
104 ip link set dev $swp1 master br1
105 ip link set dev $swp1 up
106
107 ip link set dev $swp2 master br1
108 ip link set dev $swp2 up
109
110 tc qdisc add dev $swp1 clsact
111
112 # Underlay.
113
114 simple_if_init $swp3 192.0.2.129/28 2001:db8:2::1/64
115
116 ip link add name ul type dummy
117 ip link set dev ul master v$swp3
118 ip link set dev ul up
119
120 # Overlay.
121
122 vrf_create vrf-ol
123 ip link set dev vrf-ol up
124
125 tunnel_create gt4 gretap 192.0.2.129 192.0.2.130 \
126 ttl 100 tos inherit dev ul
127 ip link set dev gt4 master vrf-ol
128 ip link set dev gt4 up
129
130 tunnel_create gt6 ip6gretap 2001:db8:2::1 2001:db8:2::2 \
131 ttl 100 tos inherit dev ul allow-localremote
132 ip link set dev gt6 master vrf-ol
133 ip link set dev gt6 up
134}
135
136switch_destroy()
137{
138 vrf_destroy vrf-ol
139
140 tunnel_destroy gt6
141 tunnel_destroy gt4
142
143 simple_if_fini $swp3 192.0.2.129/28 2001:db8:2::1/64
144
145 ip link del dev ul
146
147 tc qdisc del dev $swp1 clsact
148
149 ip link set dev $swp1 down
150 ip link set dev $swp2 down
151 ip link del dev br1
152}
153
154setup_prepare()
155{
156 h1=${NETIFS[p1]}
157 swp1=${NETIFS[p2]}
158
159 swp2=${NETIFS[p3]}
160 h2=${NETIFS[p4]}
161
162 swp3=${NETIFS[p5]}
163 h3=${NETIFS[p6]}
164
165 vrf_prepare
166
167 h1_create
168 h2_create
169 h3_create
170
171 switch_create
172}
173
174cleanup()
175{
176 pre_cleanup
177
178 switch_destroy
179
180 h3_destroy
181 h2_destroy
182 h1_destroy
183
184 vrf_cleanup
185}
186
187test_gretap()
188{
189 full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap w/ UL"
190 full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap w/ UL"
191}
192
193test_ip6gretap()
194{
195 full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap w/ UL"
196 full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap w/ UL"
197}
198
199trap cleanup EXIT
200
201setup_prepare
202setup_wait
203
204tests_run
205
206exit $EXIT_STATUS