1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3
4# This test uses standard topology for testing gretap. See
5# ../../../net/forwarding/mirror_gre_topo_lib.sh for more details.
6#
7# Test offloading various features of offloading gretap mirrors specific to
8# mlxsw.
9
10lib_dir=$(dirname $0)/../../../net/forwarding
11
12NUM_NETIFS=6
13source $lib_dir/lib.sh
14source $lib_dir/mirror_lib.sh
15source $lib_dir/mirror_gre_lib.sh
16source $lib_dir/mirror_gre_topo_lib.sh
17
18setup_keyful()
19{
20	tunnel_create gt6-key ip6gretap 2001:db8:3::1 2001:db8:3::2 \
21		      ttl 100 tos inherit allow-localremote \
22		      key 1234
23
24	tunnel_create h3-gt6-key ip6gretap 2001:db8:3::2 2001:db8:3::1 \
25		      key 1234
26	ip link set h3-gt6-key vrf v$h3
27	matchall_sink_create h3-gt6-key
28
29	ip address add dev $swp3 2001:db8:3::1/64
30	ip address add dev $h3 2001:db8:3::2/64
31}
32
33cleanup_keyful()
34{
35	ip address del dev $h3 2001:db8:3::2/64
36	ip address del dev $swp3 2001:db8:3::1/64
37
38	tunnel_destroy h3-gt6-key
39	tunnel_destroy gt6-key
40}
41
42setup_soft()
43{
44	# Set up a topology for testing underlay routes that point at an
45	# unsupported soft device.
46
47	tunnel_create gt6-soft ip6gretap 2001:db8:4::1 2001:db8:4::2 \
48		      ttl 100 tos inherit allow-localremote
49
50	tunnel_create h3-gt6-soft ip6gretap 2001:db8:4::2 2001:db8:4::1
51	ip link set h3-gt6-soft vrf v$h3
52	matchall_sink_create h3-gt6-soft
53
54	ip link add name v1 type veth peer name v2
55	ip link set dev v1 up
56	ip address add dev v1 2001:db8:4::1/64
57
58	ip link set dev v2 vrf v$h3
59	ip link set dev v2 up
60	ip address add dev v2 2001:db8:4::2/64
61}
62
63cleanup_soft()
64{
65	ip link del dev v1
66
67	tunnel_destroy h3-gt6-soft
68	tunnel_destroy gt6-soft
69}
70
71setup_prepare()
72{
73	h1=${NETIFS[p1]}
74	swp1=${NETIFS[p2]}
75
76	swp2=${NETIFS[p3]}
77	h2=${NETIFS[p4]}
78
79	swp3=${NETIFS[p5]}
80	h3=${NETIFS[p6]}
81
82	vrf_prepare
83	mirror_gre_topo_create
84
85	ip address add dev $swp3 2001:db8:2::1/64
86	ip address add dev $h3 2001:db8:2::2/64
87
88	ip address add dev $swp3 192.0.2.129/28
89	ip address add dev $h3 192.0.2.130/28
90
91	setup_keyful
92	setup_soft
93}
94
95cleanup()
96{
97	pre_cleanup
98
99	cleanup_soft
100	cleanup_keyful
101
102	ip address del dev $h3 2001:db8:2::2/64
103	ip address del dev $swp3 2001:db8:2::1/64
104
105	ip address del dev $h3 192.0.2.130/28
106	ip address del dev $swp3 192.0.2.129/28
107
108	mirror_gre_topo_destroy
109	vrf_cleanup
110}
111
112test_span_gre_ttl_inherit()
113{
114	local tundev=$1; shift
115	local type=$1; shift
116	local what=$1; shift
117
118	RET=0
119
120	ip link set dev $tundev type $type ttl inherit
121	mirror_install $swp1 ingress $tundev "matchall $tcflags"
122	fail_test_span_gre_dir $tundev ingress
123
124	ip link set dev $tundev type $type ttl 100
125
126	quick_test_span_gre_dir $tundev ingress
127	mirror_uninstall $swp1 ingress
128
129	log_test "$what: no offload on TTL of inherit ($tcflags)"
130}
131
132test_span_gre_tos_fixed()
133{
134	local tundev=$1; shift
135	local type=$1; shift
136	local what=$1; shift
137
138	RET=0
139
140	ip link set dev $tundev type $type tos 0x10
141	mirror_install $swp1 ingress $tundev "matchall $tcflags"
142	fail_test_span_gre_dir $tundev ingress
143
144	ip link set dev $tundev type $type tos inherit
145	quick_test_span_gre_dir $tundev ingress
146	mirror_uninstall $swp1 ingress
147
148	log_test "$what: no offload on a fixed TOS ($tcflags)"
149}
150
151test_span_failable()
152{
153	local should_fail=$1; shift
154	local tundev=$1; shift
155	local what=$1; shift
156
157	RET=0
158
159	mirror_install $swp1 ingress $tundev "matchall $tcflags"
160	if ((should_fail)); then
161	    fail_test_span_gre_dir  $tundev ingress
162	else
163	    quick_test_span_gre_dir $tundev ingress
164	fi
165	mirror_uninstall $swp1 ingress
166
167	log_test "$what: should_fail=$should_fail ($tcflags)"
168}
169
170test_failable()
171{
172	local should_fail=$1; shift
173
174	test_span_failable $should_fail gt6-key "mirror to keyful gretap"
175	test_span_failable $should_fail gt6-soft "mirror to gretap w/ soft underlay"
176}
177
178test_sw()
179{
180	slow_path_trap_install $swp1 ingress
181	slow_path_trap_install $swp1 egress
182
183	test_failable 0
184
185	slow_path_trap_uninstall $swp1 egress
186	slow_path_trap_uninstall $swp1 ingress
187}
188
189test_hw()
190{
191	test_failable 1
192
193	test_span_gre_tos_fixed gt4 gretap "mirror to gretap"
194	test_span_gre_tos_fixed gt6 ip6gretap "mirror to ip6gretap"
195
196	test_span_gre_ttl_inherit gt4 gretap "mirror to gretap"
197	test_span_gre_ttl_inherit gt6 ip6gretap "mirror to ip6gretap"
198}
199
200trap cleanup EXIT
201
202setup_prepare
203setup_wait
204
205if ! tc_offload_check; then
206    check_err 1 "Could not test offloaded functionality"
207    log_test "mlxsw-specific tests for mirror to gretap"
208    exit
209fi
210
211tcflags="skip_hw"
212test_sw
213
214tcflags="skip_sw"
215test_hw
216
217exit $EXIT_STATUS
218