1 # SPDX-License-Identifier: GPL-2.0
2 #
3 # Various helpers and tests to verify FIB offload.
4
5 __fib_trap_check()
6 {
7 local ns=$1; shift
8 local family=$1; shift
9 local route=$1; shift
10 local should_fail=$1; shift
11 local ret
12
13 ip -n $ns -j -p -$family route show $route \
14 | jq -e '.[]["flags"] | contains(["trap"])' &> /dev/null
15 ret=$?
16 if [[ $should_fail == "true" ]]; then
17 if [[ $ret -ne 0 ]]; then
18 return 0
19 else
20 return 1
21 fi
22 fi
23
24 return $ret
25 }
26
27 fib_trap_check()
28 {
29 local ns=$1; shift
30 local family=$1; shift
31 local route=$1; shift
32 local should_fail=$1; shift
33
34 busywait 5000 __fib_trap_check $ns $family "$route" $should_fail
35 }
36
37 fib4_trap_check()
38 {
39 local ns=$1; shift
40 local route=$1; shift
41 local should_fail=$1; shift
42
43 fib_trap_check $ns 4 "$route" $should_fail
44 }
45
46 fib6_trap_check()
47 {
48 local ns=$1; shift
49 local route=$1; shift
50 local should_fail=$1; shift
51
52 fib_trap_check $ns 6 "$route" $should_fail
53 }
54
55 fib_ipv4_identical_routes_test()
56 {
57 local ns=$1; shift
58 local i
59
60 RET=0
61
62 for i in $(seq 1 3); do
63 ip -n $ns link add name dummy$i type dummy
64 ip -n $ns link set dev dummy$i up
65 done
66
67 ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 0 metric 1024
68 fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0 metric 1024" false
69 check_err $? "Route not in hardware when should"
70
71 ip -n $ns route append 192.0.2.0/24 dev dummy2 tos 0 metric 1024
72 fib4_trap_check $ns "192.0.2.0/24 dev dummy2 tos 0 metric 1024" true
73 check_err $? "Appended route in hardware when should not"
74
75 ip -n $ns route prepend 192.0.2.0/24 dev dummy3 tos 0 metric 1024
76 fib4_trap_check $ns "192.0.2.0/24 dev dummy3 tos 0 metric 1024" false
77 check_err $? "Prepended route not in hardware when should"
78
79 fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0 metric 1024" true
80 check_err $? "Route was not replaced in hardware by prepended one"
81
82 log_test "IPv4 identical routes"
83
84 for i in $(seq 1 3); do
85 ip -n $ns link del dev dummy$i
86 done
87 }
88
89 fib_ipv4_tos_test()
90 {
91 local ns=$1; shift
92
93 RET=0
94
95 ip -n $ns link add name dummy1 type dummy
96 ip -n $ns link set dev dummy1 up
97
98 ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 0 metric 1024
99 fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0 metric 1024" false
100 check_err $? "Route not in hardware when should"
101
102 ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 8 metric 1024
103 fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 8 metric 1024" false
104 check_err $? "Highest TOS route not in hardware when should"
105
106 fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0 metric 1024" true
107 check_err $? "Lowest TOS route still in hardware when should not"
108
109 ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 4 metric 1024
110 fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 4 metric 1024" true
111 check_err $? "Middle TOS route in hardware when should not"
112
113 log_test "IPv4 routes with TOS"
114
115 ip -n $ns link del dev dummy1
116 }
117
118 fib_ipv4_metric_test()
119 {
120 local ns=$1; shift
121
122 RET=0
123
124 ip -n $ns link add name dummy1 type dummy
125 ip -n $ns link set dev dummy1 up
126
127 ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1024
128 fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" false
129 check_err $? "Route not in hardware when should"
130
131 ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1022
132 fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1022" false
133 check_err $? "Lowest metric route not in hardware when should"
134
135 fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" true
136 check_err $? "Highest metric route still in hardware when should not"
137
138 ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1023
139 fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1023" true
140 check_err $? "Middle metric route in hardware when should not"
141
142 log_test "IPv4 routes with metric"
143
144 ip -n $ns link del dev dummy1
145 }
146
147 fib_ipv4_replace_test()
148 {
149 local ns=$1; shift
150 local i
151
152 RET=0
153
154 for i in $(seq 1 2); do
155 ip -n $ns link add name dummy$i type dummy
156 ip -n $ns link set dev dummy$i up
157 done
158
159 ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1024
160 fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" false
161 check_err $? "Route not in hardware when should"
162
163 ip -n $ns route replace 192.0.2.0/24 dev dummy2 metric 1024
164 fib4_trap_check $ns "192.0.2.0/24 dev dummy2 metric 1024" false
165 check_err $? "Replacement route not in hardware when should"
166
167 # Add a route with an higher metric and make sure that replacing it
168 # does not affect the lower metric one.
169 ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1025
170 ip -n $ns route replace 192.0.2.0/24 dev dummy2 metric 1025
171
172 fib4_trap_check $ns "192.0.2.0/24 dev dummy2 metric 1024" false
173 check_err $? "Lowest metric route not in hardware when should"
174 fib4_trap_check $ns "192.0.2.0/24 dev dummy2 metric 1025" true
175 check_err $? "Highest metric route in hardware when should not"
176
177 log_test "IPv4 route replace"
178
179 for i in $(seq 1 2); do
180 ip -n $ns link del dev dummy$i
181 done
182 }
183
184 fib_ipv4_delete_test()
185 {
186 local ns=$1; shift
187 local metric
188
189 RET=0
190
191 ip -n $ns link add name dummy1 type dummy
192 ip -n $ns link set dev dummy1 up
193
194 # Insert multiple routes with the same prefix and length and varying
195 # metrics. Make sure that throughout delete operations the lowest
196 # metric route is the one in hardware.
197 for metric in $(seq 1024 1026); do
198 ip -n $ns route add 192.0.2.0/24 dev dummy1 metric $metric
199 done
200
201 fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" false
202 check_err $? "Route not in hardware when should"
203
204 ip -n $ns route del 192.0.2.0/24 dev dummy1 metric 1024
205 fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1025" false
206 check_err $? "Lowest metric route not in hardware when should"
207
208 ip -n $ns route del 192.0.2.0/24 dev dummy1 metric 1026
209 fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1025" false
210 check_err $? "Sole route not in hardware when should"
211
212 log_test "IPv4 route delete"
213
214 ip -n $ns link del dev dummy1
215 }
216
217 fib_ipv4_plen_test()
218 {
219 local ns=$1; shift
220
221 RET=0
222
223 ip -n $ns link add name dummy1 type dummy
224 ip -n $ns link set dev dummy1 up
225
226 # Add two routes with the same key and different prefix length and
227 # make sure both are in hardware. It can be verified that both are
228 # sharing the same leaf by checking the /proc/net/fib_trie
229 ip -n $ns route add 192.0.2.0/24 dev dummy1
230 ip -n $ns route add 192.0.2.0/25 dev dummy1
231
232 fib4_trap_check $ns "192.0.2.0/24 dev dummy1" false
233 check_err $? "/24 not in hardware when should"
234
235 fib4_trap_check $ns "192.0.2.0/25 dev dummy1" false
236 check_err $? "/25 not in hardware when should"
237
238 log_test "IPv4 routes with different prefix length"
239
240 ip -n $ns link del dev dummy1
241 }
242
243 fib_ipv4_replay_metric_test()
244 {
245 local ns=$1; shift
246 local devlink_dev=$1; shift
247
248 RET=0
249
250 ip -n $ns link add name dummy1 type dummy
251 ip -n $ns link set dev dummy1 up
252
253 ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1024
254 ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1025
255
256 devlink -N $ns dev reload $devlink_dev
257
258 fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" false
259 check_err $? "Lowest metric route not in hardware when should"
260
261 fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1025" true
262 check_err $? "Highest metric route in hardware when should not"
263
264 log_test "IPv4 routes replay - metric"
265
266 ip -n $ns link del dev dummy1
267 }
268
269 fib_ipv4_replay_tos_test()
270 {
271 local ns=$1; shift
272 local devlink_dev=$1; shift
273
274 RET=0
275
276 ip -n $ns link add name dummy1 type dummy
277 ip -n $ns link set dev dummy1 up
278
279 ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 0
280 ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 4
281
282 devlink -N $ns dev reload $devlink_dev
283
284 fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 4" false
285 check_err $? "Highest TOS route not in hardware when should"
286
287 fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0" true
288 check_err $? "Lowest TOS route in hardware when should not"
289
290 log_test "IPv4 routes replay - TOS"
291
292 ip -n $ns link del dev dummy1
293 }
294
295 fib_ipv4_replay_plen_test()
296 {
297 local ns=$1; shift
298 local devlink_dev=$1; shift
299
300 RET=0
301
302 ip -n $ns link add name dummy1 type dummy
303 ip -n $ns link set dev dummy1 up
304
305 ip -n $ns route add 192.0.2.0/24 dev dummy1
306 ip -n $ns route add 192.0.2.0/25 dev dummy1
307
308 devlink -N $ns dev reload $devlink_dev
309
310 fib4_trap_check $ns "192.0.2.0/24 dev dummy1" false
311 check_err $? "/24 not in hardware when should"
312
313 fib4_trap_check $ns "192.0.2.0/25 dev dummy1" false
314 check_err $? "/25 not in hardware when should"
315
316 log_test "IPv4 routes replay - prefix length"
317
318 ip -n $ns link del dev dummy1
319 }
320
321 fib_ipv4_flush_test()
322 {
323 local ns=$1; shift
324 local metric
325
326 RET=0
327
328 ip -n $ns link add name dummy1 type dummy
329 ip -n $ns link set dev dummy1 up
330
331 # Exercise the routes flushing code paths by inserting various
332 # prefix routes on a netdev and then deleting it.
333 for metric in $(seq 1 20); do
334 ip -n $ns route add 192.0.2.0/24 dev dummy1 metric $metric
335 done
336
337 ip -n $ns link del dev dummy1
338
339 log_test "IPv4 routes flushing"
340 }
341
342 fib_ipv6_add_test()
343 {
344 local ns=$1; shift
345
346 RET=0
347
348 for i in $(seq 1 2); do
349 ip -n $ns link add name dummy$i type dummy
350 ip -n $ns link set dev dummy$i up
351 done
352
353 ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1024
354 fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" false
355 check_err $? "Route not in hardware when should"
356
357 ip -n $ns route append 2001:db8:1::/64 dev dummy2 metric 1024
358 fib6_trap_check $ns "2001:db8:1::/64 dev dummy2 metric 1024" true
359 check_err $? "Route in hardware when should not"
360
361 fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" false
362 check_err $? "Route not in hardware after appending route"
363
364 log_test "IPv6 single route add"
365
366 for i in $(seq 1 2); do
367 ip -n $ns link del dev dummy$i
368 done
369 }
370
371 fib_ipv6_metric_test()
372 {
373 local ns=$1; shift
374
375 RET=0
376
377 ip -n $ns link add name dummy1 type dummy
378 ip -n $ns link set dev dummy1 up
379
380 ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1024
381 fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" false
382 check_err $? "Route not in hardware when should"
383
384 ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1022
385 fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1022" false
386 check_err $? "Lowest metric route not in hardware when should"
387
388 fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" true
389 check_err $? "Highest metric route still in hardware when should not"
390
391 ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1023
392 fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1023" true
393 check_err $? "Middle metric route in hardware when should not"
394
395 log_test "IPv6 routes with metric"
396
397 ip -n $ns link del dev dummy1
398 }
399
400 fib_ipv6_append_single_test()
401 {
402 local ns=$1; shift
403
404 # When an IPv6 multipath route is added without the 'nexthop' keyword,
405 # different code paths are taken compared to when the keyword is used.
406 # This test tries to verify the former.
407 RET=0
408
409 for i in $(seq 1 2); do
410 ip -n $ns link add name dummy$i type dummy
411 ip -n $ns link set dev dummy$i up
412 ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
413 done
414
415 ip -n $ns route add 2001:db8:10::/64 via 2001:db8:1::2 metric 1024
416 fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
417 check_err $? "Route not in hardware when should"
418
419 ip -n $ns route append 2001:db8:10::/64 via 2001:db8:2::2 metric 1024
420 fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
421 check_err $? "Route not in hardware after appending"
422
423 ip -n $ns route add 2001:db8:10::/64 via 2001:db8:1::2 metric 1025
424 fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
425 check_err $? "Route in hardware when should not"
426
427 ip -n $ns route append 2001:db8:10::/64 via 2001:db8:2::2 metric 1025
428 fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
429 check_err $? "Route in hardware when should not after appending"
430
431 fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
432 check_err $? "Lowest metric route not in hardware when should"
433
434 log_test "IPv6 append single route without 'nexthop' keyword"
435
436 for i in $(seq 1 2); do
437 ip -n $ns link del dev dummy$i
438 done
439 }
440
441 fib_ipv6_replace_single_test()
442 {
443 local ns=$1; shift
444 local i
445
446 RET=0
447
448 for i in $(seq 1 2); do
449 ip -n $ns link add name dummy$i type dummy
450 ip -n $ns link set dev dummy$i up
451 done
452
453 ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1024
454 fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" false
455 check_err $? "Route not in hardware when should"
456
457 ip -n $ns route replace 2001:db8:1::/64 dev dummy2 metric 1024
458 fib6_trap_check $ns "2001:db8:1::/64 dev dummy2 metric 1024" false
459 check_err $? "Replacement route not in hardware when should"
460
461 # Add a route with an higher metric and make sure that replacing it
462 # does not affect the lower metric one.
463 ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1025
464 ip -n $ns route replace 2001:db8:1::/64 dev dummy2 metric 1025
465
466 fib6_trap_check $ns "2001:db8:1::/64 dev dummy2 metric 1024" false
467 check_err $? "Lowest metric route not in hardware when should"
468 fib6_trap_check $ns "2001:db8:1::/64 dev dummy2 metric 1025" true
469 check_err $? "Highest metric route in hardware when should not"
470
471 log_test "IPv6 single route replace"
472
473 for i in $(seq 1 2); do
474 ip -n $ns link del dev dummy$i
475 done
476 }
477
478 fib_ipv6_metric_multipath_test()
479 {
480 local ns=$1; shift
481
482 RET=0
483
484 for i in $(seq 1 2); do
485 ip -n $ns link add name dummy$i type dummy
486 ip -n $ns link set dev dummy$i up
487 ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
488 done
489
490 ip -n $ns route add 2001:db8:10::/64 metric 1024 \
491 nexthop via 2001:db8:1::2 dev dummy1 \
492 nexthop via 2001:db8:2::2 dev dummy2
493 fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
494 check_err $? "Route not in hardware when should"
495
496 ip -n $ns route add 2001:db8:10::/64 metric 1022 \
497 nexthop via 2001:db8:1::2 dev dummy1 \
498 nexthop via 2001:db8:2::2 dev dummy2
499 fib6_trap_check $ns "2001:db8:10::/64 metric 1022" false
500 check_err $? "Lowest metric route not in hardware when should"
501
502 ip -n $ns route add 2001:db8:10::/64 metric 1023 \
503 nexthop via 2001:db8:1::2 dev dummy1 \
504 nexthop via 2001:db8:2::2 dev dummy2
505 fib6_trap_check $ns "2001:db8:10::/64 metric 1024" true
506 check_err $? "Highest metric route still in hardware when should not"
507
508 fib6_trap_check $ns "2001:db8:10::/64 metric 1023" true
509 check_err $? "Middle metric route in hardware when should not"
510
511 log_test "IPv6 multipath routes with metric"
512
513 for i in $(seq 1 2); do
514 ip -n $ns link del dev dummy$i
515 done
516 }
517
518 fib_ipv6_append_multipath_test()
519 {
520 local ns=$1; shift
521
522 RET=0
523
524 for i in $(seq 1 3); do
525 ip -n $ns link add name dummy$i type dummy
526 ip -n $ns link set dev dummy$i up
527 ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
528 done
529
530 ip -n $ns route add 2001:db8:10::/64 metric 1024 \
531 nexthop via 2001:db8:1::2 dev dummy1
532 fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
533 check_err $? "Route not in hardware when should"
534
535 ip -n $ns route append 2001:db8:10::/64 metric 1024 \
536 nexthop via 2001:db8:2::2 dev dummy2 \
537 nexthop via 2001:db8:3::2 dev dummy3
538 fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
539 check_err $? "Route not in hardware after appending"
540
541 ip -n $ns route add 2001:db8:10::/64 metric 1025 \
542 nexthop via 2001:db8:1::2 dev dummy1
543 fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
544 check_err $? "Route in hardware when should not"
545
546 ip -n $ns route append 2001:db8:10::/64 metric 1025 \
547 nexthop via 2001:db8:2::2 dev dummy2 \
548 nexthop via 2001:db8:3::2 dev dummy3
549 fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
550 check_err $? "Route in hardware when should not after appending"
551
552 fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
553 check_err $? "Lowest metric route not in hardware when should"
554
555 log_test "IPv6 append multipath route with 'nexthop' keyword"
556
557 for i in $(seq 1 3); do
558 ip -n $ns link del dev dummy$i
559 done
560 }
561
562 fib_ipv6_replace_multipath_test()
563 {
564 local ns=$1; shift
565 local i
566
567 RET=0
568
569 for i in $(seq 1 3); do
570 ip -n $ns link add name dummy$i type dummy
571 ip -n $ns link set dev dummy$i up
572 ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
573 done
574
575 ip -n $ns route add 2001:db8:10::/64 metric 1024 \
576 nexthop via 2001:db8:1::2 dev dummy1 \
577 nexthop via 2001:db8:2::2 dev dummy2
578 fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
579 check_err $? "Route not in hardware when should"
580
581 ip -n $ns route replace 2001:db8:10::/64 metric 1024 \
582 nexthop via 2001:db8:1::2 dev dummy1 \
583 nexthop via 2001:db8:3::2 dev dummy3
584 fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
585 check_err $? "Replacement route not in hardware when should"
586
587 # Add a route with an higher metric and make sure that replacing it
588 # does not affect the lower metric one.
589 ip -n $ns route add 2001:db8:10::/64 metric 1025 \
590 nexthop via 2001:db8:1::2 dev dummy1 \
591 nexthop via 2001:db8:2::2 dev dummy2
592 ip -n $ns route replace 2001:db8:10::/64 metric 1025 \
593 nexthop via 2001:db8:1::2 dev dummy1 \
594 nexthop via 2001:db8:3::2 dev dummy3
595
596 fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
597 check_err $? "Lowest metric route not in hardware when should"
598 fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
599 check_err $? "Highest metric route in hardware when should not"
600
601 log_test "IPv6 multipath route replace"
602
603 for i in $(seq 1 3); do
604 ip -n $ns link del dev dummy$i
605 done
606 }
607
608 fib_ipv6_append_multipath_to_single_test()
609 {
610 local ns=$1; shift
611
612 # Test that when the first route in the leaf is not a multipath route
613 # and we try to append a multipath route with the same metric to it, it
614 # is not notified.
615 RET=0
616
617 for i in $(seq 1 2); do
618 ip -n $ns link add name dummy$i type dummy
619 ip -n $ns link set dev dummy$i up
620 ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
621 done
622
623 ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
624 fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1024" false
625 check_err $? "Route not in hardware when should"
626
627 ip -n $ns route append 2001:db8:10::/64 metric 1024 \
628 nexthop via 2001:db8:2::2 dev dummy2
629 fib6_trap_check $ns "2001:db8:10::/64 dev dummy2 metric 1024" true
630 check_err $? "Route in hardware when should not"
631
632 fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1024" false
633 check_err $? "Route not in hardware after append"
634
635 log_test "IPv6 append multipath route to non-multipath route"
636
637 for i in $(seq 1 2); do
638 ip -n $ns link del dev dummy$i
639 done
640 }
641
642 fib_ipv6_delete_single_test()
643 {
644 local ns=$1; shift
645
646 # Test various deletion scenarios, where only a single route is
647 # deleted from the FIB node.
648 for i in $(seq 1 2); do
649 ip -n $ns link add name dummy$i type dummy
650 ip -n $ns link set dev dummy$i up
651 ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
652 done
653
654 # Test deletion of a single route when it is the only route in the FIB
655 # node.
656 RET=0
657
658 ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
659 ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1024
660
661 log_test "IPv6 delete sole single route"
662
663 # Test that deletion of last route does not affect the first one.
664 RET=0
665
666 ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
667 ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1025
668 ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1025
669
670 fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1024" false
671 check_err $? "Route not in hardware after deleting higher metric route"
672
673 log_test "IPv6 delete single route not in hardware"
674
675 ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1024
676
677 # Test that first route is replaced by next single route in the FIB
678 # node.
679 RET=0
680
681 ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
682 ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1025
683 ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1024
684
685 fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1025" false
686 check_err $? "Route not in hardware after deleting lowest metric route"
687
688 log_test "IPv6 delete single route - replaced by single"
689
690 ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1025
691
692 # Test that first route is replaced by next multipath route in the FIB
693 # node.
694 RET=0
695
696 ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
697 ip -n $ns route add 2001:db8:10::/64 metric 1025 \
698 nexthop via 2001:db8:1::2 dev dummy1 \
699 nexthop via 2001:db8:2::2 dev dummy2
700 ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1024
701
702 fib6_trap_check $ns "2001:db8:10::/64 metric 1025" false
703 check_err $? "Route not in hardware after deleting lowest metric route"
704
705 log_test "IPv6 delete single route - replaced by multipath"
706
707 ip -n $ns route del 2001:db8:10::/64 metric 1025
708
709 # Test deletion of a single nexthop from a multipath route.
710 ip -n $ns route add 2001:db8:10::/64 metric 1024 \
711 nexthop via 2001:db8:1::2 dev dummy1 \
712 nexthop via 2001:db8:2::2 dev dummy2
713 ip -n $ns route del 2001:db8:10::/64 metric 1024 \
714 nexthop via 2001:db8:1::2 dev dummy1
715
716 fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
717 check_err $? "Route not in hardware after deleting a single nexthop"
718
719 log_test "IPv6 delete single nexthop"
720
721 ip -n $ns route del 2001:db8:10::/64 metric 1024
722
723 for i in $(seq 1 2); do
724 ip -n $ns link del dev dummy$i
725 done
726 }
727
728 fib_ipv6_delete_multipath_test()
729 {
730 local ns=$1; shift
731
732 # Test various deletion scenarios, where an entire multipath route is
733 # deleted from the FIB node.
734 for i in $(seq 1 2); do
735 ip -n $ns link add name dummy$i type dummy
736 ip -n $ns link set dev dummy$i up
737 ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
738 done
739
740 # Test deletion of a multipath route when it is the only route in the
741 # FIB node.
742 RET=0
743
744 ip -n $ns route add 2001:db8:10::/64 metric 1024 \
745 nexthop via 2001:db8:1::2 dev dummy1 \
746 nexthop via 2001:db8:2::2 dev dummy2
747 ip -n $ns route del 2001:db8:10::/64 metric 1024
748
749 log_test "IPv6 delete sole multipath route"
750
751 # Test that deletion of last route does not affect the first one.
752 RET=0
753
754 ip -n $ns route add 2001:db8:10::/64 metric 1024 \
755 nexthop via 2001:db8:1::2 dev dummy1 \
756 nexthop via 2001:db8:2::2 dev dummy2
757 ip -n $ns route add 2001:db8:10::/64 metric 1025 \
758 nexthop via 2001:db8:1::2 dev dummy1 \
759 nexthop via 2001:db8:2::2 dev dummy2
760 ip -n $ns route del 2001:db8:10::/64 metric 1025
761
762 fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
763 check_err $? "Route not in hardware after deleting higher metric route"
764
765 log_test "IPv6 delete multipath route not in hardware"
766
767 ip -n $ns route del 2001:db8:10::/64 metric 1024
768
769 # Test that first route is replaced by next single route in the FIB
770 # node.
771 RET=0
772
773 ip -n $ns route add 2001:db8:10::/64 metric 1024 \
774 nexthop via 2001:db8:1::2 dev dummy1 \
775 nexthop via 2001:db8:2::2 dev dummy2
776 ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1025
777 ip -n $ns route del 2001:db8:10::/64 metric 1024
778
779 fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1025" false
780 check_err $? "Route not in hardware after deleting lowest metric route"
781
782 log_test "IPv6 delete multipath route - replaced by single"
783
784 ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1025
785
786 # Test that first route is replaced by next multipath route in the FIB
787 # node.
788 RET=0
789
790 ip -n $ns route add 2001:db8:10::/64 metric 1024 \
791 nexthop via 2001:db8:1::2 dev dummy1 \
792 nexthop via 2001:db8:2::2 dev dummy2
793 ip -n $ns route add 2001:db8:10::/64 metric 1025 \
794 nexthop via 2001:db8:1::2 dev dummy1 \
795 nexthop via 2001:db8:2::2 dev dummy2
796 ip -n $ns route del 2001:db8:10::/64 metric 1024
797
798 fib6_trap_check $ns "2001:db8:10::/64 metric 1025" false
799 check_err $? "Route not in hardware after deleting lowest metric route"
800
801 log_test "IPv6 delete multipath route - replaced by multipath"
802
803 ip -n $ns route del 2001:db8:10::/64 metric 1025
804
805 for i in $(seq 1 2); do
806 ip -n $ns link del dev dummy$i
807 done
808 }
809
810 fib_ipv6_replay_single_test()
811 {
812 local ns=$1; shift
813 local devlink_dev=$1; shift
814
815 RET=0
816
817 for i in $(seq 1 2); do
818 ip -n $ns link add name dummy$i type dummy
819 ip -n $ns link set dev dummy$i up
820 done
821
822 ip -n $ns route add 2001:db8:1::/64 dev dummy1
823 ip -n $ns route append 2001:db8:1::/64 dev dummy2
824
825 devlink -N $ns dev reload $devlink_dev
826
827 fib6_trap_check $ns "2001:db8:1::/64 dev dummy1" false
828 check_err $? "First route not in hardware when should"
829
830 fib6_trap_check $ns "2001:db8:1::/64 dev dummy2" true
831 check_err $? "Second route in hardware when should not"
832
833 log_test "IPv6 routes replay - single route"
834
835 for i in $(seq 1 2); do
836 ip -n $ns link del dev dummy$i
837 done
838 }
839
840 fib_ipv6_replay_multipath_test()
841 {
842 local ns=$1; shift
843 local devlink_dev=$1; shift
844
845 RET=0
846
847 for i in $(seq 1 2); do
848 ip -n $ns link add name dummy$i type dummy
849 ip -n $ns link set dev dummy$i up
850 ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
851 done
852
853 ip -n $ns route add 2001:db8:10::/64 metric 1024 \
854 nexthop via 2001:db8:1::2 dev dummy1 \
855 nexthop via 2001:db8:2::2 dev dummy2
856 ip -n $ns route add 2001:db8:10::/64 metric 1025 \
857 nexthop via 2001:db8:1::2 dev dummy1 \
858 nexthop via 2001:db8:2::2 dev dummy2
859
860 devlink -N $ns dev reload $devlink_dev
861
862 fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
863 check_err $? "First route not in hardware when should"
864
865 fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
866 check_err $? "Second route in hardware when should not"
867
868 log_test "IPv6 routes replay - multipath route"
869
870 for i in $(seq 1 2); do
871 ip -n $ns link del dev dummy$i
872 done
873 }
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