blob: 135902aa8b11498bfbf99428a77084b4ee3de7fd (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
|
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# This test uses standard topology for testing gretap. See
# mirror_gre_topo_lib.sh for more details.
#
# Test how mirrors to gretap and ip6gretap react to changes to relevant
# configuration.
ALL_TESTS="
test_ttl
test_tun_up
test_egress_up
test_remote_ip
test_tun_del
test_route_del
"
NUM_NETIFS=6
source lib.sh
source mirror_lib.sh
source mirror_gre_lib.sh
source mirror_gre_topo_lib.sh
setup_prepare()
{
h1=${NETIFS[p1]}
swp1=${NETIFS[p2]}
swp2=${NETIFS[p3]}
h2=${NETIFS[p4]}
swp3=${NETIFS[p5]}
h3=${NETIFS[p6]}
vrf_prepare
mirror_gre_topo_create
# This test downs $swp3, which deletes the configured IPv6 address
# unless this sysctl is set.
sysctl_set net.ipv6.conf.$swp3.keep_addr_on_down 1
ip address add dev $swp3 192.0.2.129/28
ip address add dev $h3 192.0.2.130/28
ip address add dev $swp3 2001:db8:2::1/64
ip address add dev $h3 2001:db8:2::2/64
}
cleanup()
{
pre_cleanup
ip address del dev $h3 2001:db8:2::2/64
ip address del dev $swp3 2001:db8:2::1/64
ip address del dev $h3 192.0.2.130/28
ip address del dev $swp3 192.0.2.129/28
sysctl_restore net.ipv6.conf.$swp3.keep_addr_on_down
mirror_gre_topo_destroy
vrf_cleanup
}
test_span_gre_ttl()
{
local tundev=$1; shift
local type=$1; shift
local prot=$1; shift
local what=$1; shift
RET=0
mirror_install $swp1 ingress $tundev "matchall $tcflags"
tc filter add dev $h3 ingress pref 77 prot $prot \
flower ip_ttl 50 action pass
mirror_test v$h1 192.0.2.1 192.0.2.2 $h3 77 0
ip link set dev $tundev type $type ttl 50
mirror_test v$h1 192.0.2.1 192.0.2.2 $h3 77 10
ip link set dev $tundev type $type ttl 100
tc filter del dev $h3 ingress pref 77
mirror_uninstall $swp1 ingress
log_test "$what: TTL change ($tcflags)"
}
test_span_gre_tun_up()
{
local tundev=$1; shift
local what=$1; shift
RET=0
ip link set dev $tundev down
mirror_install $swp1 ingress $tundev "matchall $tcflags"
fail_test_span_gre_dir $tundev ingress
ip link set dev $tundev up
quick_test_span_gre_dir $tundev ingress
mirror_uninstall $swp1 ingress
log_test "$what: tunnel down/up ($tcflags)"
}
test_span_gre_egress_up()
{
local tundev=$1; shift
local remote_ip=$1; shift
local what=$1; shift
RET=0
ip link set dev $swp3 down
mirror_install $swp1 ingress $tundev "matchall $tcflags"
fail_test_span_gre_dir $tundev ingress
# After setting the device up, wait for neighbor to get resolved so that
# we can expect mirroring to work.
ip link set dev $swp3 up
setup_wait_dev $swp3
ping -c 1 -I $swp3 $remote_ip &>/dev/null
quick_test_span_gre_dir $tundev ingress
mirror_uninstall $swp1 ingress
log_test "$what: egress down/up ($tcflags)"
}
test_span_gre_remote_ip()
{
local tundev=$1; shift
local type=$1; shift
local correct_ip=$1; shift
local wrong_ip=$1; shift
local what=$1; shift
RET=0
ip link set dev $tundev type $type remote $wrong_ip
mirror_install $swp1 ingress $tundev "matchall $tcflags"
fail_test_span_gre_dir $tundev ingress
ip link set dev $tundev type $type remote $correct_ip
quick_test_span_gre_dir $tundev ingress
mirror_uninstall $swp1 ingress
log_test "$what: remote address change ($tcflags)"
}
test_span_gre_tun_del()
{
local tundev=$1; shift
local type=$1; shift
local flags=$1; shift
local local_ip=$1; shift
local remote_ip=$1; shift
local what=$1; shift
RET=0
mirror_install $swp1 ingress $tundev "matchall $tcflags"
quick_test_span_gre_dir $tundev ingress
ip link del dev $tundev
fail_test_span_gre_dir $tundev ingress
tunnel_create $tundev $type $local_ip $remote_ip \
ttl 100 tos inherit $flags
# Recreating the tunnel doesn't reestablish mirroring, so reinstall it
# and verify it works for the follow-up tests.
mirror_uninstall $swp1 ingress
mirror_install $swp1 ingress $tundev "matchall $tcflags"
quick_test_span_gre_dir $tundev ingress
mirror_uninstall $swp1 ingress
log_test "$what: tunnel deleted ($tcflags)"
}
test_span_gre_route_del()
{
local tundev=$1; shift
local edev=$1; shift
local route=$1; shift
local what=$1; shift
RET=0
mirror_install $swp1 ingress $tundev "matchall $tcflags"
quick_test_span_gre_dir $tundev ingress
ip route del $route dev $edev
fail_test_span_gre_dir $tundev ingress
ip route add $route dev $edev
quick_test_span_gre_dir $tundev ingress
mirror_uninstall $swp1 ingress
log_test "$what: underlay route removal ($tcflags)"
}
test_ttl()
{
test_span_gre_ttl gt4 gretap ip "mirror to gretap"
test_span_gre_ttl gt6 ip6gretap ipv6 "mirror to ip6gretap"
}
test_tun_up()
{
test_span_gre_tun_up gt4 "mirror to gretap"
test_span_gre_tun_up gt6 "mirror to ip6gretap"
}
test_egress_up()
{
test_span_gre_egress_up gt4 192.0.2.130 "mirror to gretap"
test_span_gre_egress_up gt6 2001:db8:2::2 "mirror to ip6gretap"
}
test_remote_ip()
{
test_span_gre_remote_ip gt4 gretap 192.0.2.130 192.0.2.132 "mirror to gretap"
test_span_gre_remote_ip gt6 ip6gretap 2001:db8:2::2 2001:db8:2::4 "mirror to ip6gretap"
}
test_tun_del()
{
test_span_gre_tun_del gt4 gretap "" \
192.0.2.129 192.0.2.130 "mirror to gretap"
test_span_gre_tun_del gt6 ip6gretap allow-localremote \
2001:db8:2::1 2001:db8:2::2 "mirror to ip6gretap"
}
test_route_del()
{
test_span_gre_route_del gt4 $swp3 192.0.2.128/28 "mirror to gretap"
test_span_gre_route_del gt6 $swp3 2001:db8:2::/64 "mirror to ip6gretap"
}
test_all()
{
slow_path_trap_install $swp1 ingress
slow_path_trap_install $swp1 egress
tests_run
slow_path_trap_uninstall $swp1 egress
slow_path_trap_uninstall $swp1 ingress
}
trap cleanup EXIT
setup_prepare
setup_wait
tcflags="skip_hw"
test_all
if ! tc_offload_check; then
echo "WARN: Could not test offloaded functionality"
else
tcflags="skip_sw"
test_all
fi
exit $EXIT_STATUS
|
