Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3#
4# This test is for checking the FIB offload API. It makes use of netdevsim
5# which registers a listener to the FIB notification chain.
6
7lib_dir=$(dirname $0)/../../../net/forwarding
8
9ALL_TESTS="
10 ipv4_identical_routes
11 ipv4_tos
12 ipv4_metric
13 ipv4_replace
14 ipv4_delete
15 ipv4_plen
16 ipv4_replay
17 ipv4_flush
18 ipv4_error_path
19 ipv4_delete_fail
20 ipv6_add
21 ipv6_metric
22 ipv6_append_single
23 ipv6_replace_single
24 ipv6_metric_multipath
25 ipv6_append_multipath
26 ipv6_replace_multipath
27 ipv6_append_multipath_to_single
28 ipv6_delete_single
29 ipv6_delete_multipath
30 ipv6_replay_single
31 ipv6_replay_multipath
32 ipv6_error_path
33 ipv6_delete_fail
34"
35NETDEVSIM_PATH=/sys/bus/netdevsim/
36DEV_ADDR=1337
37DEV=netdevsim${DEV_ADDR}
38SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/
39DEBUGFS_DIR=/sys/kernel/debug/netdevsim/$DEV/
40NUM_NETIFS=0
41source $lib_dir/lib.sh
42source $lib_dir/fib_offload_lib.sh
43
44DEVLINK_DEV=
45source $lib_dir/devlink_lib.sh
46DEVLINK_DEV=netdevsim/${DEV}
47
48ipv4_identical_routes()
49{
50 fib_ipv4_identical_routes_test "testns1"
51}
52
53ipv4_tos()
54{
55 fib_ipv4_tos_test "testns1"
56}
57
58ipv4_metric()
59{
60 fib_ipv4_metric_test "testns1"
61}
62
63ipv4_replace()
64{
65 fib_ipv4_replace_test "testns1"
66}
67
68ipv4_delete()
69{
70 fib_ipv4_delete_test "testns1"
71}
72
73ipv4_plen()
74{
75 fib_ipv4_plen_test "testns1"
76}
77
78ipv4_replay_metric()
79{
80 fib_ipv4_replay_metric_test "testns1" "$DEVLINK_DEV"
81}
82
83ipv4_replay_tos()
84{
85 fib_ipv4_replay_tos_test "testns1" "$DEVLINK_DEV"
86}
87
88ipv4_replay_plen()
89{
90 fib_ipv4_replay_plen_test "testns1" "$DEVLINK_DEV"
91}
92
93ipv4_replay()
94{
95 ipv4_replay_metric
96 ipv4_replay_tos
97 ipv4_replay_plen
98}
99
100ipv4_flush()
101{
102 fib_ipv4_flush_test "testns1"
103}
104
105ipv4_error_path_add()
106{
107 local lsb
108
109 RET=0
110
111 ip -n testns1 link add name dummy1 type dummy
112 ip -n testns1 link set dev dummy1 up
113
114 devlink -N testns1 resource set $DEVLINK_DEV path IPv4/fib size 10
115 devlink -N testns1 dev reload $DEVLINK_DEV
116
117 for lsb in $(seq 1 20); do
118 ip -n testns1 route add 192.0.2.${lsb}/32 dev dummy1 \
119 &> /dev/null
120 done
121
122 log_test "IPv4 error path - add"
123
124 ip -n testns1 link del dev dummy1
125}
126
127ipv4_error_path_replay()
128{
129 local lsb
130
131 RET=0
132
133 ip -n testns1 link add name dummy1 type dummy
134 ip -n testns1 link set dev dummy1 up
135
136 devlink -N testns1 resource set $DEVLINK_DEV path IPv4/fib size 100
137 devlink -N testns1 dev reload $DEVLINK_DEV
138
139 for lsb in $(seq 1 20); do
140 ip -n testns1 route add 192.0.2.${lsb}/32 dev dummy1
141 done
142
143 devlink -N testns1 resource set $DEVLINK_DEV path IPv4/fib size 10
144 devlink -N testns1 dev reload $DEVLINK_DEV &> /dev/null
145
146 log_test "IPv4 error path - replay"
147
148 ip -n testns1 link del dev dummy1
149
150 # Successfully reload after deleting all the routes.
151 devlink -N testns1 resource set $DEVLINK_DEV path IPv4/fib size 100
152 devlink -N testns1 dev reload $DEVLINK_DEV
153}
154
155ipv4_error_path()
156{
157 # Test the different error paths of the notifiers by limiting the size
158 # of the "IPv4/fib" resource.
159 ipv4_error_path_add
160 ipv4_error_path_replay
161}
162
163ipv4_delete_fail()
164{
165 RET=0
166
167 echo "y" > $DEBUGFS_DIR/fib/fail_route_delete
168
169 ip -n testns1 link add name dummy1 type dummy
170 ip -n testns1 link set dev dummy1 up
171
172 ip -n testns1 route add 192.0.2.0/24 dev dummy1
173 ip -n testns1 route del 192.0.2.0/24 dev dummy1 &> /dev/null
174
175 # We should not be able to delete the netdev if we are leaking a
176 # reference.
177 ip -n testns1 link del dev dummy1
178
179 log_test "IPv4 route delete failure"
180
181 echo "n" > $DEBUGFS_DIR/fib/fail_route_delete
182}
183
184ipv6_add()
185{
186 fib_ipv6_add_test "testns1"
187}
188
189ipv6_metric()
190{
191 fib_ipv6_metric_test "testns1"
192}
193
194ipv6_append_single()
195{
196 fib_ipv6_append_single_test "testns1"
197}
198
199ipv6_replace_single()
200{
201 fib_ipv6_replace_single_test "testns1"
202}
203
204ipv6_metric_multipath()
205{
206 fib_ipv6_metric_multipath_test "testns1"
207}
208
209ipv6_append_multipath()
210{
211 fib_ipv6_append_multipath_test "testns1"
212}
213
214ipv6_replace_multipath()
215{
216 fib_ipv6_replace_multipath_test "testns1"
217}
218
219ipv6_append_multipath_to_single()
220{
221 fib_ipv6_append_multipath_to_single_test "testns1"
222}
223
224ipv6_delete_single()
225{
226 fib_ipv6_delete_single_test "testns1"
227}
228
229ipv6_delete_multipath()
230{
231 fib_ipv6_delete_multipath_test "testns1"
232}
233
234ipv6_replay_single()
235{
236 fib_ipv6_replay_single_test "testns1" "$DEVLINK_DEV"
237}
238
239ipv6_replay_multipath()
240{
241 fib_ipv6_replay_multipath_test "testns1" "$DEVLINK_DEV"
242}
243
244ipv6_error_path_add_single()
245{
246 local lsb
247
248 RET=0
249
250 ip -n testns1 link add name dummy1 type dummy
251 ip -n testns1 link set dev dummy1 up
252
253 devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 10
254 devlink -N testns1 dev reload $DEVLINK_DEV
255
256 for lsb in $(seq 1 20); do
257 ip -n testns1 route add 2001:db8:1::${lsb}/128 dev dummy1 \
258 &> /dev/null
259 done
260
261 log_test "IPv6 error path - add single"
262
263 ip -n testns1 link del dev dummy1
264}
265
266ipv6_error_path_add_multipath()
267{
268 local lsb
269
270 RET=0
271
272 for i in $(seq 1 2); do
273 ip -n testns1 link add name dummy$i type dummy
274 ip -n testns1 link set dev dummy$i up
275 ip -n testns1 address add 2001:db8:$i::1/64 dev dummy$i
276 done
277
278 devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 10
279 devlink -N testns1 dev reload $DEVLINK_DEV
280
281 for lsb in $(seq 1 20); do
282 ip -n testns1 route add 2001:db8:10::${lsb}/128 \
283 nexthop via 2001:db8:1::2 dev dummy1 \
284 nexthop via 2001:db8:2::2 dev dummy2 &> /dev/null
285 done
286
287 log_test "IPv6 error path - add multipath"
288
289 for i in $(seq 1 2); do
290 ip -n testns1 link del dev dummy$i
291 done
292}
293
294ipv6_error_path_replay()
295{
296 local lsb
297
298 RET=0
299
300 ip -n testns1 link add name dummy1 type dummy
301 ip -n testns1 link set dev dummy1 up
302
303 devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 100
304 devlink -N testns1 dev reload $DEVLINK_DEV
305
306 for lsb in $(seq 1 20); do
307 ip -n testns1 route add 2001:db8:1::${lsb}/128 dev dummy1
308 done
309
310 devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 10
311 devlink -N testns1 dev reload $DEVLINK_DEV &> /dev/null
312
313 log_test "IPv6 error path - replay"
314
315 ip -n testns1 link del dev dummy1
316
317 # Successfully reload after deleting all the routes.
318 devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 100
319 devlink -N testns1 dev reload $DEVLINK_DEV
320}
321
322ipv6_error_path()
323{
324 # Test the different error paths of the notifiers by limiting the size
325 # of the "IPv6/fib" resource.
326 ipv6_error_path_add_single
327 ipv6_error_path_add_multipath
328 ipv6_error_path_replay
329}
330
331ipv6_delete_fail()
332{
333 RET=0
334
335 echo "y" > $DEBUGFS_DIR/fib/fail_route_delete
336
337 ip -n testns1 link add name dummy1 type dummy
338 ip -n testns1 link set dev dummy1 up
339
340 ip -n testns1 route add 2001:db8:1::/64 dev dummy1
341 ip -n testns1 route del 2001:db8:1::/64 dev dummy1 &> /dev/null
342
343 # We should not be able to delete the netdev if we are leaking a
344 # reference.
345 ip -n testns1 link del dev dummy1
346
347 log_test "IPv6 route delete failure"
348
349 echo "n" > $DEBUGFS_DIR/fib/fail_route_delete
350}
351
352fib_notify_on_flag_change_set()
353{
354 local notify=$1; shift
355
356 ip netns exec testns1 sysctl -qw net.ipv4.fib_notify_on_flag_change=$notify
357 ip netns exec testns1 sysctl -qw net.ipv6.fib_notify_on_flag_change=$notify
358
359 log_info "Set fib_notify_on_flag_change to $notify"
360}
361
362setup_prepare()
363{
364 local netdev
365
366 modprobe netdevsim &> /dev/null
367
368 echo "$DEV_ADDR 1" > ${NETDEVSIM_PATH}/new_device
369 while [ ! -d $SYSFS_NET_DIR ] ; do :; done
370
371 ip netns add testns1
372 if [ $? -ne 0 ]; then
373 echo "Failed to add netns \"testns1\""
374 exit 1
375 fi
376
377 devlink dev reload $DEVLINK_DEV netns testns1
378 if [ $? -ne 0 ]; then
379 echo "Failed to reload into netns \"testns1\""
380 exit 1
381 fi
382}
383
384cleanup()
385{
386 pre_cleanup
387 ip netns del testns1
388 echo "$DEV_ADDR" > ${NETDEVSIM_PATH}/del_device
389 modprobe -r netdevsim &> /dev/null
390}
391
392trap cleanup EXIT
393
394setup_prepare
395
396fib_notify_on_flag_change_set 1
397tests_run
398
399fib_notify_on_flag_change_set 0
400tests_run
401
402exit $EXIT_STATUS