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WIP FPC-III support
[linux/fpc-iii.git] / tools / testing / selftests / net / forwarding / gre_inner_v6_multipath.sh
blobe449475c4d3e98c979ecc5b5762a0709e151c92c
1 #!/bin/bash
2 # SPDX-License-Identifier: GPL-2.0
3
4 # Test traffic distribution when there are multiple routes between an IPv4
5 # GRE tunnel. The tunnel carries IPv6 traffic between multiple hosts.
6 # Multiple routes are in the underlay network. With the default multipath
7 # policy, SW2 will only look at the outer IP addresses, hence only a single
8 # route would be used.
9 #
10 # +-------------------------+
11 # | H1 |
12 # | $h1 + |
13 # | 2001:db8:1::2/64 | |
14 # +-------------------|-----+
15 # |
16 # +-------------------|------------------------+
17 # | SW1 | |
18 # | $ol1 + |
19 # | 2001:db8:1::1/64 |
20 # | |
21 # | + g1 (gre) |
22 # | loc=192.0.2.65 |
23 # | rem=192.0.2.66 --. |
24 # | tos=inherit | |
25 # | v |
26 # | + $ul1 |
27 # | | 192.0.2.129/28 |
28 # +---------------------|----------------------+
29 # |
30 # +---------------------|----------------------+
31 # | SW2 | |
32 # | $ul21 + |
33 # | 192.0.2.130/28 |
34 # | | |
35 # ! ________________|_____ |
36 # | / \ |
37 # | | | |
38 # | + $ul22.111 (vlan) + $ul22.222 (vlan) |
39 # | | 192.0.2.145/28 | 192.0.2.161/28 |
40 # | | | |
41 # +--|----------------------|------------------+
42 # | |
43 # +--|----------------------|------------------+
44 # | | | |
45 # | + $ul32.111 (vlan) + $ul32.222 (vlan) |
46 # | | 192.0.2.146/28 | 192.0.2.162/28 |
47 # | | | |
48 # | \______________________/ |
49 # | | |
50 # | | |
51 # | $ul31 + |
52 # | 192.0.2.177/28 | SW3 |
53 # +---------------------|----------------------+
54 # |
55 # +---------------------|----------------------+
56 # | + $ul4 |
57 # | ^ 192.0.2.178/28 |
58 # | | |
59 # | + g2 (gre) | |
60 # | loc=192.0.2.66 | |
61 # | rem=192.0.2.65 --' |
62 # | tos=inherit |
63 # | |
64 # | $ol4 + |
65 # | 2001:db8:2::1/64 | SW4 |
66 # +--------------------|-----------------------+
67 # |
68 # +--------------------|---------+
69 # | | |
70 # | $h2 + |
71 # | 2001:db8:2::2/64 H2 |
72 # +------------------------------+
73
74 ALL_TESTS="
75 ping_ipv6
76 multipath_ipv6
77 "
78
79 NUM_NETIFS=10
80 source lib.sh
81
82 h1_create()
83 {
84 simple_if_init $h1 2001:db8:1::2/64
85 ip -6 route add vrf v$h1 2001:db8:2::/64 via 2001:db8:1::1
86 }
87
88 h1_destroy()
89 {
90 ip -6 route del vrf v$h1 2001:db8:2::/64 via 2001:db8:1::1
91 simple_if_fini $h1 2001:db8:1::2/64
92 }
93
94 sw1_create()
95 {
96 simple_if_init $ol1 2001:db8:1::1/64
97 __simple_if_init $ul1 v$ol1 192.0.2.129/28
98
99 tunnel_create g1 gre 192.0.2.65 192.0.2.66 tos inherit dev v$ol1
100 __simple_if_init g1 v$ol1 192.0.2.65/32
101 ip route add vrf v$ol1 192.0.2.66/32 via 192.0.2.130
102
103 ip -6 route add vrf v$ol1 2001:db8:2::/64 dev g1
104 }
105
106 sw1_destroy()
107 {
108 ip -6 route del vrf v$ol1 2001:db8:2::/64
109
110 ip route del vrf v$ol1 192.0.2.66/32
111 __simple_if_fini g1 192.0.2.65/32
112 tunnel_destroy g1
113
114 __simple_if_fini $ul1 192.0.2.129/28
115 simple_if_fini $ol1 2001:db8:1::1/64
116 }
117
118 sw2_create()
119 {
120 simple_if_init $ul21 192.0.2.130/28
121 __simple_if_init $ul22 v$ul21
122 vlan_create $ul22 111 v$ul21 192.0.2.145/28
123 vlan_create $ul22 222 v$ul21 192.0.2.161/28
124
125 ip route add vrf v$ul21 192.0.2.65/32 via 192.0.2.129
126 ip route add vrf v$ul21 192.0.2.66/32 \
127 nexthop via 192.0.2.146 \
128 nexthop via 192.0.2.162
129 }
130
131 sw2_destroy()
132 {
133 ip route del vrf v$ul21 192.0.2.66/32
134 ip route del vrf v$ul21 192.0.2.65/32
135
136 vlan_destroy $ul22 222
137 vlan_destroy $ul22 111
138 __simple_if_fini $ul22
139 simple_if_fini $ul21 192.0.2.130/28
140 }
141
142 sw3_create()
143 {
144 simple_if_init $ul31 192.0.2.177/28
145 __simple_if_init $ul32 v$ul31
146 vlan_create $ul32 111 v$ul31 192.0.2.146/28
147 vlan_create $ul32 222 v$ul31 192.0.2.162/28
148
149 ip route add vrf v$ul31 192.0.2.66/32 via 192.0.2.178
150 ip route add vrf v$ul31 192.0.2.65/32 \
151 nexthop via 192.0.2.145 \
152 nexthop via 192.0.2.161
153
154 tc qdisc add dev $ul32 clsact
155 tc filter add dev $ul32 ingress pref 111 prot 802.1Q \
156 flower vlan_id 111 action pass
157 tc filter add dev $ul32 ingress pref 222 prot 802.1Q \
158 flower vlan_id 222 action pass
159 }
160
161 sw3_destroy()
162 {
163 tc qdisc del dev $ul32 clsact
164
165 ip route del vrf v$ul31 192.0.2.65/32
166 ip route del vrf v$ul31 192.0.2.66/32
167
168 vlan_destroy $ul32 222
169 vlan_destroy $ul32 111
170 __simple_if_fini $ul32
171 simple_if_fini $ul31 192.0.2.177/28
172 }
173
174 sw4_create()
175 {
176 simple_if_init $ol4 2001:db8:2::1/64
177 __simple_if_init $ul4 v$ol4 192.0.2.178/28
178
179 tunnel_create g2 gre 192.0.2.66 192.0.2.65 tos inherit dev v$ol4
180 __simple_if_init g2 v$ol4 192.0.2.66/32
181 ip route add vrf v$ol4 192.0.2.65/32 via 192.0.2.177
182
183 ip -6 route add vrf v$ol4 2001:db8:1::/64 dev g2
184 }
185
186 sw4_destroy()
187 {
188 ip -6 route del vrf v$ol4 2001:db8:1::/64
189
190 ip route del vrf v$ol4 192.0.2.65/32
191 __simple_if_fini g2 192.0.2.66/32
192 tunnel_destroy g2
193
194 __simple_if_fini $ul4 192.0.2.178/28
195 simple_if_fini $ol4 2001:db8:2::1/64
196 }
197
198 h2_create()
199 {
200 simple_if_init $h2 2001:db8:2::2/64
201 ip -6 route add vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1
202 }
203
204 h2_destroy()
205 {
206 ip -6 route del vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1
207 simple_if_fini $h2 2001:db8:2::2/64
208 }
209
210 setup_prepare()
211 {
212 h1=${NETIFS[p1]}
213
214 ol1=${NETIFS[p2]}
215 ul1=${NETIFS[p3]}
216
217 ul21=${NETIFS[p4]}
218 ul22=${NETIFS[p5]}
219
220 ul32=${NETIFS[p6]}
221 ul31=${NETIFS[p7]}
222
223 ul4=${NETIFS[p8]}
224 ol4=${NETIFS[p9]}
225
226 h2=${NETIFS[p10]}
227
228 vrf_prepare
229 h1_create
230 sw1_create
231 sw2_create
232 sw3_create
233 sw4_create
234 h2_create
235
236 forwarding_enable
237 }
238
239 cleanup()
240 {
241 pre_cleanup
242
243 forwarding_restore
244
245 h2_destroy
246 sw4_destroy
247 sw3_destroy
248 sw2_destroy
249 sw1_destroy
250 h1_destroy
251 vrf_cleanup
252 }
253
254 multipath6_test()
255 {
256 local what=$1; shift
257 local weight1=$1; shift
258 local weight2=$1; shift
259
260 sysctl_set net.ipv4.fib_multipath_hash_policy 2
261 ip route replace vrf v$ul21 192.0.2.66/32 \
262 nexthop via 192.0.2.146 weight $weight1 \
263 nexthop via 192.0.2.162 weight $weight2
264
265 local t0_111=$(tc_rule_stats_get $ul32 111 ingress)
266 local t0_222=$(tc_rule_stats_get $ul32 222 ingress)
267
268 ip vrf exec v$h1 \
269 $MZ $h1 -6 -q -p 64 -A "2001:db8:1::2-2001:db8:1::1e" \
270 -B "2001:db8:2::2-2001:db8:2::1e" \
271 -d 1msec -c 50 -t udp "sp=1024,dp=1024"
272 sleep 1
273
274 local t1_111=$(tc_rule_stats_get $ul32 111 ingress)
275 local t1_222=$(tc_rule_stats_get $ul32 222 ingress)
276
277 local d111=$((t1_111 - t0_111))
278 local d222=$((t1_222 - t0_222))
279 multipath_eval "$what" $weight1 $weight2 $d111 $d222
280
281 ip route replace vrf v$ul21 192.0.2.66/32 \
282 nexthop via 192.0.2.146 \
283 nexthop via 192.0.2.162
284 sysctl_restore net.ipv4.fib_multipath_hash_policy
285 }
286
287 ping_ipv6()
288 {
289 ping_test $h1 2001:db8:2::2
290 }
291
292 multipath_ipv6()
293 {
294 log_info "Running IPv6 over GRE over IPv4 multipath tests"
295 multipath6_test "ECMP" 1 1
296 multipath6_test "Weighted MP 2:1" 2 1
297 multipath6_test "Weighted MP 11:45" 11 45
298 }
299
300 trap cleanup EXIT
301
302 setup_prepare
303 setup_wait
304 tests_run
305
306 exit $EXIT_STATUS
Linux with added FPC-III support