1 #!/bin/bash
2 # SPDX-License-Identifier: GPL-2.0
3
4 lib_dir=$(dirname $0)/../../../net/forwarding
5
6 ALL_TESTS="
7 ipv4_route_addition_test
8 ipv4_route_deletion_test
9 ipv4_route_replacement_test
10 ipv4_route_offload_failed_test
11 ipv6_route_addition_test
12 ipv6_route_deletion_test
13 ipv6_route_replacement_test
14 ipv6_route_offload_failed_test
15 "
16
17 NETDEVSIM_PATH=/sys/bus/netdevsim/
18 DEV_ADDR=1337
19 DEV=netdevsim${DEV_ADDR}
20 DEVLINK_DEV=netdevsim/${DEV}
21 SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/
22 DEBUGFS_DIR=/sys/kernel/debug/netdevsim/$DEV/
23 NUM_NETIFS=0
24 source $lib_dir/lib.sh
25
26 check_rt_offload_failed()
27 {
28 local outfile=$1; shift
29 local line
30
31 # Make sure that the first notification was emitted without
32 # RTM_F_OFFLOAD_FAILED flag and the second with RTM_F_OFFLOAD_FAILED
33 # flag
34 head -n 1 $outfile | grep -q "rt_offload_failed"
35 if [[ $? -eq 0 ]]; then
36 return 1
37 fi
38
39 head -n 2 $outfile | tail -n 1 | grep -q "rt_offload_failed"
40 }
41
42 check_rt_trap()
43 {
44 local outfile=$1; shift
45 local line
46
47 # Make sure that the first notification was emitted without RTM_F_TRAP
48 # flag and the second with RTM_F_TRAP flag
49 head -n 1 $outfile | grep -q "rt_trap"
50 if [[ $? -eq 0 ]]; then
51 return 1
52 fi
53
54 head -n 2 $outfile | tail -n 1 | grep -q "rt_trap"
55 }
56
57 route_notify_check()
58 {
59 local outfile=$1; shift
60 local expected_num_lines=$1; shift
61 local offload_failed=${1:-0}; shift
62
63 # check the monitor results
64 lines=`wc -l $outfile | cut "-d " -f1`
65 test $lines -eq $expected_num_lines
66 check_err $? "$expected_num_lines notifications were expected but $lines were received"
67
68 if [[ $expected_num_lines -eq 1 ]]; then
69 return
70 fi
71
72 if [[ $offload_failed -eq 0 ]]; then
73 check_rt_trap $outfile
74 check_err $? "Wrong RTM_F_TRAP flags in notifications"
75 else
76 check_rt_offload_failed $outfile
77 check_err $? "Wrong RTM_F_OFFLOAD_FAILED flags in notifications"
78 fi
79 }
80
81 route_addition_check()
82 {
83 local ip=$1; shift
84 local notify=$1; shift
85 local route=$1; shift
86 local expected_num_notifications=$1; shift
87 local offload_failed=${1:-0}; shift
88
89 ip netns exec testns1 sysctl -qw net.$ip.fib_notify_on_flag_change=$notify
90
91 local outfile=$(mktemp)
92
93 $IP monitor route &> $outfile &
94 sleep 1
95 $IP route add $route dev dummy1
96 sleep 1
97 kill %% && wait %% &> /dev/null
98
99 route_notify_check $outfile $expected_num_notifications $offload_failed
100 rm -f $outfile
101
102 $IP route del $route dev dummy1
103 }
104
105 ipv4_route_addition_test()
106 {
107 RET=0
108
109 local ip="ipv4"
110 local route=192.0.2.0/24
111
112 # Make sure a single notification will be emitted for the programmed
113 # route.
114 local notify=0
115 local expected_num_notifications=1
116 # route_addition_check will assign value to RET.
117 route_addition_check $ip $notify $route $expected_num_notifications
118
119 # Make sure two notifications will be emitted for the programmed route.
120 notify=1
121 expected_num_notifications=2
122 route_addition_check $ip $notify $route $expected_num_notifications
123
124 # notify=2 means emit notifications only for failed route installation,
125 # make sure a single notification will be emitted for the programmed
126 # route.
127 notify=2
128 expected_num_notifications=1
129 route_addition_check $ip $notify $route $expected_num_notifications
130
131 log_test "IPv4 route addition"
132 }
133
134 route_deletion_check()
135 {
136 local ip=$1; shift
137 local notify=$1; shift
138 local route=$1; shift
139 local expected_num_notifications=$1; shift
140
141 ip netns exec testns1 sysctl -qw net.$ip.fib_notify_on_flag_change=$notify
142 $IP route add $route dev dummy1
143 sleep 1
144
145 local outfile=$(mktemp)
146
147 $IP monitor route &> $outfile &
148 sleep 1
149 $IP route del $route dev dummy1
150 sleep 1
151 kill %% && wait %% &> /dev/null
152
153 route_notify_check $outfile $expected_num_notifications
154 rm -f $outfile
155 }
156
157 ipv4_route_deletion_test()
158 {
159 RET=0
160
161 local ip="ipv4"
162 local route=192.0.2.0/24
163 local expected_num_notifications=1
164
165 # Make sure a single notification will be emitted for the deleted route,
166 # regardless of fib_notify_on_flag_change value.
167 local notify=0
168 # route_deletion_check will assign value to RET.
169 route_deletion_check $ip $notify $route $expected_num_notifications
170
171 notify=1
172 route_deletion_check $ip $notify $route $expected_num_notifications
173
174 log_test "IPv4 route deletion"
175 }
176
177 route_replacement_check()
178 {
179 local ip=$1; shift
180 local notify=$1; shift
181 local route=$1; shift
182 local expected_num_notifications=$1; shift
183
184 ip netns exec testns1 sysctl -qw net.$ip.fib_notify_on_flag_change=$notify
185 $IP route add $route dev dummy1
186 sleep 1
187
188 local outfile=$(mktemp)
189
190 $IP monitor route &> $outfile &
191 sleep 1
192 $IP route replace $route dev dummy2
193 sleep 1
194 kill %% && wait %% &> /dev/null
195
196 route_notify_check $outfile $expected_num_notifications
197 rm -f $outfile
198
199 $IP route del $route dev dummy2
200 }
201
202 ipv4_route_replacement_test()
203 {
204 RET=0
205
206 local ip="ipv4"
207 local route=192.0.2.0/24
208
209 $IP link add name dummy2 type dummy
210 $IP link set dev dummy2 up
211
212 # Make sure a single notification will be emitted for the new route.
213 local notify=0
214 local expected_num_notifications=1
215 # route_replacement_check will assign value to RET.
216 route_replacement_check $ip $notify $route $expected_num_notifications
217
218 # Make sure two notifications will be emitted for the new route.
219 notify=1
220 expected_num_notifications=2
221 route_replacement_check $ip $notify $route $expected_num_notifications
222
223 # notify=2 means emit notifications only for failed route installation,
224 # make sure a single notification will be emitted for the new route.
225 notify=2
226 expected_num_notifications=1
227 route_replacement_check $ip $notify $route $expected_num_notifications
228
229 $IP link del name dummy2
230
231 log_test "IPv4 route replacement"
232 }
233
234 ipv4_route_offload_failed_test()
235 {
236
237 RET=0
238
239 local ip="ipv4"
240 local route=192.0.2.0/24
241 local offload_failed=1
242
243 echo "y"> $DEBUGFS_DIR/fib/fail_route_offload
244 check_err $? "Failed to setup route offload to fail"
245
246 # Make sure a single notification will be emitted for the programmed
247 # route.
248 local notify=0
249 local expected_num_notifications=1
250 route_addition_check $ip $notify $route $expected_num_notifications \
251 $offload_failed
252
253 # Make sure two notifications will be emitted for the new route.
254 notify=1
255 expected_num_notifications=2
256 route_addition_check $ip $notify $route $expected_num_notifications \
257 $offload_failed
258
259 # notify=2 means emit notifications only for failed route installation,
260 # make sure two notifications will be emitted for the new route.
261 notify=2
262 expected_num_notifications=2
263 route_addition_check $ip $notify $route $expected_num_notifications \
264 $offload_failed
265
266 echo "n"> $DEBUGFS_DIR/fib/fail_route_offload
267 check_err $? "Failed to setup route offload not to fail"
268
269 log_test "IPv4 route offload failed"
270 }
271
272 ipv6_route_addition_test()
273 {
274 RET=0
275
276 local ip="ipv6"
277 local route=2001:db8:1::/64
278
279 # Make sure a single notification will be emitted for the programmed
280 # route.
281 local notify=0
282 local expected_num_notifications=1
283 route_addition_check $ip $notify $route $expected_num_notifications
284
285 # Make sure two notifications will be emitted for the programmed route.
286 notify=1
287 expected_num_notifications=2
288 route_addition_check $ip $notify $route $expected_num_notifications
289
290 # notify=2 means emit notifications only for failed route installation,
291 # make sure a single notification will be emitted for the programmed
292 # route.
293 notify=2
294 expected_num_notifications=1
295 route_addition_check $ip $notify $route $expected_num_notifications
296
297 log_test "IPv6 route addition"
298 }
299
300 ipv6_route_deletion_test()
301 {
302 RET=0
303
304 local ip="ipv6"
305 local route=2001:db8:1::/64
306 local expected_num_notifications=1
307
308 # Make sure a single notification will be emitted for the deleted route,
309 # regardless of fib_notify_on_flag_change value.
310 local notify=0
311 route_deletion_check $ip $notify $route $expected_num_notifications
312
313 notify=1
314 route_deletion_check $ip $notify $route $expected_num_notifications
315
316 log_test "IPv6 route deletion"
317 }
318
319 ipv6_route_replacement_test()
320 {
321 RET=0
322
323 local ip="ipv6"
324 local route=2001:db8:1::/64
325
326 $IP link add name dummy2 type dummy
327 $IP link set dev dummy2 up
328
329 # Make sure a single notification will be emitted for the new route.
330 local notify=0
331 local expected_num_notifications=1
332 route_replacement_check $ip $notify $route $expected_num_notifications
333
334 # Make sure two notifications will be emitted for the new route.
335 notify=1
336 expected_num_notifications=2
337 route_replacement_check $ip $notify $route $expected_num_notifications
338
339 # notify=2 means emit notifications only for failed route installation,
340 # make sure a single notification will be emitted for the new route.
341 notify=2
342 expected_num_notifications=1
343 route_replacement_check $ip $notify $route $expected_num_notifications
344
345 $IP link del name dummy2
346
347 log_test "IPv6 route replacement"
348 }
349
350 ipv6_route_offload_failed_test()
351 {
352
353 RET=0
354
355 local ip="ipv6"
356 local route=2001:db8:1::/64
357 local offload_failed=1
358
359 echo "y"> $DEBUGFS_DIR/fib/fail_route_offload
360 check_err $? "Failed to setup route offload to fail"
361
362 # Make sure a single notification will be emitted for the programmed
363 # route.
364 local notify=0
365 local expected_num_notifications=1
366 route_addition_check $ip $notify $route $expected_num_notifications \
367 $offload_failed
368
369 # Make sure two notifications will be emitted for the new route.
370 notify=1
371 expected_num_notifications=2
372 route_addition_check $ip $notify $route $expected_num_notifications \
373 $offload_failed
374
375 # notify=2 means emit notifications only for failed route installation,
376 # make sure two notifications will be emitted for the new route.
377 notify=2
378 expected_num_notifications=2
379 route_addition_check $ip $notify $route $expected_num_notifications \
380 $offload_failed
381
382 echo "n"> $DEBUGFS_DIR/fib/fail_route_offload
383 check_err $? "Failed to setup route offload not to fail"
384
385 log_test "IPv6 route offload failed"
386 }
387
388 setup_prepare()
389 {
390 modprobe netdevsim &> /dev/null
391 echo "$DEV_ADDR 1" > ${NETDEVSIM_PATH}/new_device
392 while [ ! -d $SYSFS_NET_DIR ] ; do :; done
393
394 ip netns add testns1
395
396 if [ $? -ne 0 ]; then
397 echo "Failed to add netns \"testns1\""
398 exit 1
399 fi
400
401 devlink dev reload $DEVLINK_DEV netns testns1
402
403 if [ $? -ne 0 ]; then
404 echo "Failed to reload into netns \"testns1\""
405 exit 1
406 fi
407
408 IP="ip -n testns1"
409
410 $IP link add name dummy1 type dummy
411 $IP link set dev dummy1 up
412 }
413
414 cleanup()
415 {
416 pre_cleanup
417
418 $IP link del name dummy1
419 ip netns del testns1
420 echo "$DEV_ADDR" > ${NETDEVSIM_PATH}/del_device
421 modprobe -r netdevsim &> /dev/null
422 }
423
424 trap cleanup EXIT
425
426 setup_prepare
427
428 tests_run
429
430 exit $EXIT_STATUS
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