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 (v$h1) |
6# | 2001:db8:1::2/64 |
7# | 198.51.100.2/28 |
8# | $h1 + |
9# +-------------|----+
10# |
11# +-------------|-------------------------------+
12# | SW1 | |
13# | $rp1 + |
14# | 198.51.100.1/28 |
15# | 2001:db8:1::1/64 |
16# | |
17# | 2001:db8:2::1/64 2001:db8:3::1/64 |
18# | 198.51.100.17/28 198.51.100.33/28 |
19# | $rp2 + $rp3 + |
20# +--------------|--------------------------|---+
21# | |
22# | |
23# +--------------|---+ +--------------|---+
24# | H2 (v$h2) | | | H3 (v$h3) | |
25# | $h2 + | | $h3 + |
26# | 198.51.100.18/28 | | 198.51.100.34/28 |
27# | 2001:db8:2::2/64 | | 2001:db8:3::2/64 |
28# +------------------+ +------------------+
29#
30
31ALL_TESTS="mcast_v4 mcast_v6"
32NUM_NETIFS=6
33source lib.sh
34source tc_common.sh
35
36require_command $MCD
37require_command $MC_CLI
38table_name=selftests
39
40h1_create()
41{
42 simple_if_init $h1 198.51.100.2/28 2001:db8:1::2/64
43
44 ip route add 198.51.100.16/28 vrf v$h1 nexthop via 198.51.100.1
45 ip route add 198.51.100.32/28 vrf v$h1 nexthop via 198.51.100.1
46
47 ip route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::1
48 ip route add 2001:db8:3::/64 vrf v$h1 nexthop via 2001:db8:1::1
49}
50
51h1_destroy()
52{
53 ip route del 2001:db8:3::/64 vrf v$h1
54 ip route del 2001:db8:2::/64 vrf v$h1
55
56 ip route del 198.51.100.32/28 vrf v$h1
57 ip route del 198.51.100.16/28 vrf v$h1
58
59 simple_if_fini $h1 198.51.100.2/28 2001:db8:1::2/64
60}
61
62h2_create()
63{
64 simple_if_init $h2 198.51.100.18/28 2001:db8:2::2/64
65
66 ip route add 198.51.100.0/28 vrf v$h2 nexthop via 198.51.100.17
67 ip route add 198.51.100.32/28 vrf v$h2 nexthop via 198.51.100.17
68
69 ip route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::1
70 ip route add 2001:db8:3::/64 vrf v$h2 nexthop via 2001:db8:2::1
71
72 tc qdisc add dev $h2 ingress
73}
74
75h2_destroy()
76{
77 tc qdisc del dev $h2 ingress
78
79 ip route del 2001:db8:3::/64 vrf v$h2
80 ip route del 2001:db8:1::/64 vrf v$h2
81
82 ip route del 198.51.100.32/28 vrf v$h2
83 ip route del 198.51.100.0/28 vrf v$h2
84
85 simple_if_fini $h2 198.51.100.18/28 2001:db8:2::2/64
86}
87
88h3_create()
89{
90 simple_if_init $h3 198.51.100.34/28 2001:db8:3::2/64
91
92 ip route add 198.51.100.0/28 vrf v$h3 nexthop via 198.51.100.33
93 ip route add 198.51.100.16/28 vrf v$h3 nexthop via 198.51.100.33
94
95 ip route add 2001:db8:1::/64 vrf v$h3 nexthop via 2001:db8:3::1
96 ip route add 2001:db8:2::/64 vrf v$h3 nexthop via 2001:db8:3::1
97
98 tc qdisc add dev $h3 ingress
99}
100
101h3_destroy()
102{
103 tc qdisc del dev $h3 ingress
104
105 ip route del 2001:db8:2::/64 vrf v$h3
106 ip route del 2001:db8:1::/64 vrf v$h3
107
108 ip route del 198.51.100.16/28 vrf v$h3
109 ip route del 198.51.100.0/28 vrf v$h3
110
111 simple_if_fini $h3 198.51.100.34/28 2001:db8:3::2/64
112}
113
114router_create()
115{
116 ip link set dev $rp1 up
117 ip link set dev $rp2 up
118 ip link set dev $rp3 up
119
120 ip address add 198.51.100.1/28 dev $rp1
121 ip address add 198.51.100.17/28 dev $rp2
122 ip address add 198.51.100.33/28 dev $rp3
123
124 ip address add 2001:db8:1::1/64 dev $rp1
125 ip address add 2001:db8:2::1/64 dev $rp2
126 ip address add 2001:db8:3::1/64 dev $rp3
127}
128
129router_destroy()
130{
131 ip address del 2001:db8:3::1/64 dev $rp3
132 ip address del 2001:db8:2::1/64 dev $rp2
133 ip address del 2001:db8:1::1/64 dev $rp1
134
135 ip address del 198.51.100.33/28 dev $rp3
136 ip address del 198.51.100.17/28 dev $rp2
137 ip address del 198.51.100.1/28 dev $rp1
138
139 ip link set dev $rp3 down
140 ip link set dev $rp2 down
141 ip link set dev $rp1 down
142}
143
144start_mcd()
145{
146 SMCROUTEDIR="$(mktemp -d)"
147
148 for ((i = 1; i <= $NUM_NETIFS; ++i)); do
149 echo "phyint ${NETIFS[p$i]} enable" >> \
150 $SMCROUTEDIR/$table_name.conf
151 done
152
153 $MCD -N -I $table_name -f $SMCROUTEDIR/$table_name.conf \
154 -P $SMCROUTEDIR/$table_name.pid
155}
156
157kill_mcd()
158{
159 pkill $MCD
160 rm -rf $SMCROUTEDIR
161}
162
163setup_prepare()
164{
165 h1=${NETIFS[p1]}
166 rp1=${NETIFS[p2]}
167
168 rp2=${NETIFS[p3]}
169 h2=${NETIFS[p4]}
170
171 rp3=${NETIFS[p5]}
172 h3=${NETIFS[p6]}
173
174 start_mcd
175
176 vrf_prepare
177
178 h1_create
179 h2_create
180 h3_create
181
182 router_create
183
184 forwarding_enable
185}
186
187cleanup()
188{
189 pre_cleanup
190
191 forwarding_restore
192
193 router_destroy
194
195 h3_destroy
196 h2_destroy
197 h1_destroy
198
199 vrf_cleanup
200
201 kill_mcd
202}
203
204create_mcast_sg()
205{
206 local if_name=$1; shift
207 local s_addr=$1; shift
208 local mcast=$1; shift
209 local dest_ifs=${@}
210
211 $MC_CLI -I $table_name add $if_name $s_addr $mcast $dest_ifs
212}
213
214delete_mcast_sg()
215{
216 local if_name=$1; shift
217 local s_addr=$1; shift
218 local mcast=$1; shift
219 local dest_ifs=${@}
220
221 $MC_CLI -I $table_name remove $if_name $s_addr $mcast $dest_ifs
222}
223
224mcast_v4()
225{
226 # Add two interfaces to an MC group, send a packet to the MC group and
227 # verify packets are received on both. Then delete the route and verify
228 # packets are no longer received.
229
230 RET=0
231
232 tc filter add dev $h2 ingress protocol ip pref 1 handle 122 flower \
233 dst_ip 225.1.2.3 action drop
234 tc filter add dev $h3 ingress protocol ip pref 1 handle 133 flower \
235 dst_ip 225.1.2.3 action drop
236
237 create_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3
238
239 # Send frames with the corresponding L2 destination address.
240 $MZ $h1 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
241 -A 198.51.100.2 -B 225.1.2.3 -q
242
243 tc_check_packets "dev $h2 ingress" 122 5
244 check_err $? "Multicast not received on first host"
245 tc_check_packets "dev $h3 ingress" 133 5
246 check_err $? "Multicast not received on second host"
247
248 delete_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3
249
250 $MZ $h1 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
251 -A 198.51.100.2 -B 225.1.2.3 -q
252
253 tc_check_packets "dev $h2 ingress" 122 5
254 check_err $? "Multicast received on host although deleted"
255 tc_check_packets "dev $h3 ingress" 133 5
256 check_err $? "Multicast received on second host although deleted"
257
258 tc filter del dev $h3 ingress protocol ip pref 1 handle 133 flower
259 tc filter del dev $h2 ingress protocol ip pref 1 handle 122 flower
260
261 log_test "mcast IPv4"
262}
263
264mcast_v6()
265{
266 # Add two interfaces to an MC group, send a packet to the MC group and
267 # verify packets are received on both. Then delete the route and verify
268 # packets are no longer received.
269
270 RET=0
271
272 tc filter add dev $h2 ingress protocol ipv6 pref 1 handle 122 flower \
273 dst_ip ff0e::3 action drop
274 tc filter add dev $h3 ingress protocol ipv6 pref 1 handle 133 flower \
275 dst_ip ff0e::3 action drop
276
277 create_mcast_sg $rp1 2001:db8:1::2 ff0e::3 $rp2 $rp3
278
279 # Send frames with the corresponding L2 destination address.
280 $MZ $h1 -6 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 \
281 -b 33:33:00:00:00:03 -A 2001:db8:1::2 -B ff0e::3 -q
282
283 tc_check_packets "dev $h2 ingress" 122 5
284 check_err $? "Multicast not received on first host"
285 tc_check_packets "dev $h3 ingress" 133 5
286 check_err $? "Multicast not received on second host"
287
288 delete_mcast_sg $rp1 2001:db8:1::2 ff0e::3 $rp2 $rp3
289
290 $MZ $h1 -6 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 \
291 -b 33:33:00:00:00:03 -A 2001:db8:1::2 -B ff0e::3 -q
292
293 tc_check_packets "dev $h2 ingress" 122 5
294 check_err $? "Multicast received on first host although deleted"
295 tc_check_packets "dev $h3 ingress" 133 5
296 check_err $? "Multicast received on second host although deleted"
297
298 tc filter del dev $h3 ingress protocol ipv6 pref 1 handle 133 flower
299 tc filter del dev $h2 ingress protocol ipv6 pref 1 handle 122 flower
300
301 log_test "mcast IPv6"
302}
303
304trap cleanup EXIT
305
306setup_prepare
307setup_wait
308
309tests_run
310
311exit $EXIT_STATUS