blob: 2ba44247c60aebfdab8d7bb4859a32969c5229ad (
plain)
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
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
|
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# +-------------------------+
# | H1 |
# | $h1 + |
# | 192.0.2.2/24 | |
# | 2001:db8:1::2/64 | |
# +-------------------|-----+
# |
# +-------------------|----------------------+
# | | R1 |
# | $rp11 + |
# | 192.0.2.1/24 |
# | 2001:db8:1::1/64 |
# | |
# | + $rp12 + $rp13 |
# | | 169.254.2.12/24 | 169.254.3.13/24 |
# | | fe80:2::12/64 | fe80:3::13/64 |
# +--|--------------------|------------------+
# | |
# +--|--------------------|------------------+
# | + $rp22 + $rp23 |
# | 169.254.2.22/24 169.254.3.23/24 |
# | fe80:2::22/64 fe80:3::23/64 |
# | |
# | $rp21 + |
# | 198.51.100.1/24 | |
# | 2001:db8:2::1/64 | R2 |
# +-------------------|----------------------+
# |
# +-------------------|-----+
# | | |
# | $h2 + |
# | 198.51.100.2/24 |
# | 2001:db8:2::2/64 H2 |
# +-------------------------+
ALL_TESTS="
ping_ipv4
ping_ipv6
multipath_test
ping_ipv4_blackhole
ping_ipv6_blackhole
nh_stats_test_v4
nh_stats_test_v6
"
NUM_NETIFS=8
source lib.sh
source router_mpath_nh_lib.sh
h1_create()
{
vrf_create "vrf-h1"
ip link set dev $h1 master vrf-h1
ip link set dev vrf-h1 up
ip link set dev $h1 up
ip address add 192.0.2.2/24 dev $h1
ip address add 2001:db8:1::2/64 dev $h1
ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.1
ip route add 2001:db8:2::/64 vrf vrf-h1 nexthop via 2001:db8:1::1
}
h1_destroy()
{
ip route del 2001:db8:2::/64 vrf vrf-h1
ip route del 198.51.100.0/24 vrf vrf-h1
ip address del 2001:db8:1::2/64 dev $h1
ip address del 192.0.2.2/24 dev $h1
ip link set dev $h1 down
vrf_destroy "vrf-h1"
}
h2_create()
{
vrf_create "vrf-h2"
ip link set dev $h2 master vrf-h2
ip link set dev vrf-h2 up
ip link set dev $h2 up
ip address add 198.51.100.2/24 dev $h2
ip address add 2001:db8:2::2/64 dev $h2
ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.1
ip route add 2001:db8:1::/64 vrf vrf-h2 nexthop via 2001:db8:2::1
}
h2_destroy()
{
ip route del 2001:db8:1::/64 vrf vrf-h2
ip route del 192.0.2.0/24 vrf vrf-h2
ip address del 2001:db8:2::2/64 dev $h2
ip address del 198.51.100.2/24 dev $h2
ip link set dev $h2 down
vrf_destroy "vrf-h2"
}
router1_create()
{
vrf_create "vrf-r1"
ip link set dev $rp11 master vrf-r1
ip link set dev $rp12 master vrf-r1
ip link set dev $rp13 master vrf-r1
ip link set dev vrf-r1 up
ip link set dev $rp11 up
ip link set dev $rp12 up
ip link set dev $rp13 up
ip address add 192.0.2.1/24 dev $rp11
ip address add 2001:db8:1::1/64 dev $rp11
ip address add 169.254.2.12/24 dev $rp12
ip address add fe80:2::12/64 dev $rp12
ip address add 169.254.3.13/24 dev $rp13
ip address add fe80:3::13/64 dev $rp13
}
router1_destroy()
{
ip route del 2001:db8:2::/64 vrf vrf-r1
ip route del 198.51.100.0/24 vrf vrf-r1
ip address del fe80:3::13/64 dev $rp13
ip address del 169.254.3.13/24 dev $rp13
ip address del fe80:2::12/64 dev $rp12
ip address del 169.254.2.12/24 dev $rp12
ip address del 2001:db8:1::1/64 dev $rp11
ip address del 192.0.2.1/24 dev $rp11
ip nexthop del id 103
ip nexthop del id 101
ip nexthop del id 102
ip nexthop del id 106
ip nexthop del id 104
ip nexthop del id 105
ip link set dev $rp13 down
ip link set dev $rp12 down
ip link set dev $rp11 down
vrf_destroy "vrf-r1"
}
router2_create()
{
vrf_create "vrf-r2"
ip link set dev $rp21 master vrf-r2
ip link set dev $rp22 master vrf-r2
ip link set dev $rp23 master vrf-r2
ip link set dev vrf-r2 up
ip link set dev $rp21 up
ip link set dev $rp22 up
ip link set dev $rp23 up
ip address add 198.51.100.1/24 dev $rp21
ip address add 2001:db8:2::1/64 dev $rp21
ip address add 169.254.2.22/24 dev $rp22
ip address add fe80:2::22/64 dev $rp22
ip address add 169.254.3.23/24 dev $rp23
ip address add fe80:3::23/64 dev $rp23
}
router2_destroy()
{
ip route del 2001:db8:1::/64 vrf vrf-r2
ip route del 192.0.2.0/24 vrf vrf-r2
ip address del fe80:3::23/64 dev $rp23
ip address del 169.254.3.23/24 dev $rp23
ip address del fe80:2::22/64 dev $rp22
ip address del 169.254.2.22/24 dev $rp22
ip address del 2001:db8:2::1/64 dev $rp21
ip address del 198.51.100.1/24 dev $rp21
ip nexthop del id 201
ip nexthop del id 202
ip nexthop del id 204
ip nexthop del id 205
ip link set dev $rp23 down
ip link set dev $rp22 down
ip link set dev $rp21 down
vrf_destroy "vrf-r2"
}
routing_nh_obj()
{
ip nexthop add id 101 via 169.254.2.22 dev $rp12
ip nexthop add id 102 via 169.254.3.23 dev $rp13
ip nexthop add id 103 group 101/102
ip route add 198.51.100.0/24 vrf vrf-r1 nhid 103
ip nexthop add id 104 via fe80:2::22 dev $rp12
ip nexthop add id 105 via fe80:3::23 dev $rp13
ip nexthop add id 106 group 104/105
ip route add 2001:db8:2::/64 vrf vrf-r1 nhid 106
ip nexthop add id 201 via 169.254.2.12 dev $rp22
ip nexthop add id 202 via 169.254.3.13 dev $rp23
ip nexthop add id 203 group 201/202
ip route add 192.0.2.0/24 vrf vrf-r2 nhid 203
ip nexthop add id 204 via fe80:2::12 dev $rp22
ip nexthop add id 205 via fe80:3::13 dev $rp23
ip nexthop add id 206 group 204/205
ip route add 2001:db8:1::/64 vrf vrf-r2 nhid 206
}
multipath4_test()
{
local desc="$1"
local weight_rp12=$2
local weight_rp13=$3
local t0_rp12 t0_rp13 t1_rp12 t1_rp13
local packets_rp12 packets_rp13
# Transmit multiple flows from h1 to h2 and make sure they are
# distributed between both multipath links (rp12 and rp13)
# according to the configured weights.
sysctl_set net.ipv4.fib_multipath_hash_policy 1
ip nexthop replace id 103 group 101,$weight_rp12/102,$weight_rp13
t0_rp12=$(link_stats_tx_packets_get $rp12)
t0_rp13=$(link_stats_tx_packets_get $rp13)
ip vrf exec vrf-h1 $MZ $h1 -q -p 64 -A 192.0.2.2 -B 198.51.100.2 \
-d $MZ_DELAY -t udp "sp=1024,dp=0-32768"
t1_rp12=$(link_stats_tx_packets_get $rp12)
t1_rp13=$(link_stats_tx_packets_get $rp13)
let "packets_rp12 = $t1_rp12 - $t0_rp12"
let "packets_rp13 = $t1_rp13 - $t0_rp13"
multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13
# Restore settings.
ip nexthop replace id 103 group 101/102
sysctl_restore net.ipv4.fib_multipath_hash_policy
}
multipath6_test()
{
local desc="$1"
local weight_rp12=$2
local weight_rp13=$3
local t0_rp12 t0_rp13 t1_rp12 t1_rp13
local packets_rp12 packets_rp13
# Transmit multiple flows from h1 to h2 and make sure they are
# distributed between both multipath links (rp12 and rp13)
# according to the configured weights.
sysctl_set net.ipv6.fib_multipath_hash_policy 1
ip nexthop replace id 106 group 104,$weight_rp12/105,$weight_rp13
t0_rp12=$(link_stats_tx_packets_get $rp12)
t0_rp13=$(link_stats_tx_packets_get $rp13)
$MZ $h1 -6 -q -p 64 -A 2001:db8:1::2 -B 2001:db8:2::2 \
-d $MZ_DELAY -t udp "sp=1024,dp=0-32768"
t1_rp12=$(link_stats_tx_packets_get $rp12)
t1_rp13=$(link_stats_tx_packets_get $rp13)
let "packets_rp12 = $t1_rp12 - $t0_rp12"
let "packets_rp13 = $t1_rp13 - $t0_rp13"
multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13
ip nexthop replace id 106 group 104/105
sysctl_restore net.ipv6.fib_multipath_hash_policy
}
multipath_test()
{
log_info "Running IPv4 multipath tests"
multipath4_test "ECMP" 1 1
multipath4_test "Weighted MP 2:1" 2 1
multipath4_test "Weighted MP 11:45" 11 45
log_info "Running IPv4 multipath tests with IPv6 link-local nexthops"
ip nexthop replace id 101 via fe80:2::22 dev $rp12
ip nexthop replace id 102 via fe80:3::23 dev $rp13
multipath4_test "ECMP" 1 1
multipath4_test "Weighted MP 2:1" 2 1
multipath4_test "Weighted MP 11:45" 11 45
ip nexthop replace id 102 via 169.254.3.23 dev $rp13
ip nexthop replace id 101 via 169.254.2.22 dev $rp12
log_info "Running IPv6 multipath tests"
multipath6_test "ECMP" 1 1
multipath6_test "Weighted MP 2:1" 2 1
multipath6_test "Weighted MP 11:45" 11 45
}
ping_ipv4_blackhole()
{
RET=0
ip nexthop add id 1001 blackhole
ip nexthop add id 1002 group 1001
ip route replace 198.51.100.0/24 vrf vrf-r1 nhid 1001
ping_do $h1 198.51.100.2
check_fail $? "ping did not fail when using a blackhole nexthop"
ip route replace 198.51.100.0/24 vrf vrf-r1 nhid 1002
ping_do $h1 198.51.100.2
check_fail $? "ping did not fail when using a blackhole nexthop group"
ip route replace 198.51.100.0/24 vrf vrf-r1 nhid 103
ping_do $h1 198.51.100.2
check_err $? "ping failed with a valid nexthop"
log_test "IPv4 blackhole ping"
ip nexthop del id 1002
ip nexthop del id 1001
}
ping_ipv6_blackhole()
{
RET=0
ip -6 nexthop add id 1001 blackhole
ip nexthop add id 1002 group 1001
ip route replace 2001:db8:2::/64 vrf vrf-r1 nhid 1001
ping6_do $h1 2001:db8:2::2
check_fail $? "ping did not fail when using a blackhole nexthop"
ip route replace 2001:db8:2::/64 vrf vrf-r1 nhid 1002
ping6_do $h1 2001:db8:2::2
check_fail $? "ping did not fail when using a blackhole nexthop group"
ip route replace 2001:db8:2::/64 vrf vrf-r1 nhid 106
ping6_do $h1 2001:db8:2::2
check_err $? "ping failed with a valid nexthop"
log_test "IPv6 blackhole ping"
ip nexthop del id 1002
ip -6 nexthop del id 1001
}
nh_stats_test_v4()
{
__nh_stats_test_v4 mpath
}
nh_stats_test_v6()
{
__nh_stats_test_v6 mpath
}
setup_prepare()
{
h1=${NETIFS[p1]}
rp11=${NETIFS[p2]}
rp12=${NETIFS[p3]}
rp22=${NETIFS[p4]}
rp13=${NETIFS[p5]}
rp23=${NETIFS[p6]}
rp21=${NETIFS[p7]}
h2=${NETIFS[p8]}
vrf_prepare
h1_create
h2_create
router1_create
router2_create
forwarding_enable
}
cleanup()
{
pre_cleanup
forwarding_restore
router2_destroy
router1_destroy
h2_destroy
h1_destroy
vrf_cleanup
}
ping_ipv4()
{
ping_test $h1 198.51.100.2
}
ping_ipv6()
{
ping6_test $h1 2001:db8:2::2
}
ip nexthop ls >/dev/null 2>&1
if [ $? -ne 0 ]; then
echo "Nexthop objects not supported; skipping tests"
exit $ksft_skip
fi
trap cleanup EXIT
setup_prepare
setup_wait
routing_nh_obj
tests_run
exit $EXIT_STATUS
|
