1 #!/bin/bash
2 # SPDX-License-Identifier: GPL-2.0
3
4 # Double quotes to prevent globbing and word splitting is recommended in new
5 # code but we accept it.
6 #shellcheck disable=SC2086
7
8 # Some variables are used below but indirectly, see verify_*_event()
9 #shellcheck disable=SC2034
10
11 . "$(dirname "${0}")/mptcp_lib.sh"
12
13 mptcp_lib_check_mptcp
14 mptcp_lib_check_kallsyms
15
16 if ! mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
17 echo "userspace pm tests are not supported by the kernel: SKIP"
18 exit ${KSFT_SKIP}
19 fi
20 mptcp_lib_check_tools ip
21
22 ANNOUNCED=${MPTCP_LIB_EVENT_ANNOUNCED}
23 REMOVED=${MPTCP_LIB_EVENT_REMOVED}
24 SUB_ESTABLISHED=${MPTCP_LIB_EVENT_SUB_ESTABLISHED}
25 SUB_CLOSED=${MPTCP_LIB_EVENT_SUB_CLOSED}
26 LISTENER_CREATED=${MPTCP_LIB_EVENT_LISTENER_CREATED}
27 LISTENER_CLOSED=${MPTCP_LIB_EVENT_LISTENER_CLOSED}
28
29 AF_INET=${MPTCP_LIB_AF_INET}
30 AF_INET6=${MPTCP_LIB_AF_INET6}
31
32 file=""
33 server_evts=""
34 client_evts=""
35 server_evts_pid=0
36 client_evts_pid=0
37 client4_pid=0
38 server4_pid=0
39 client6_pid=0
40 server6_pid=0
41 client4_token=""
42 server4_token=""
43 client6_token=""
44 server6_token=""
45 client4_port=0;
46 client6_port=0;
47 app4_port=50002
48 new4_port=50003
49 app6_port=50004
50 client_addr_id=${RANDOM:0:2}
51 server_addr_id=${RANDOM:0:2}
52
53 ns1=""
54 ns2=""
55 ret=0
56 test_name=""
57 # a bit more space: because we have more to display
58 MPTCP_LIB_TEST_FORMAT="%02u %-68s"
59
60 print_title()
61 {
62 mptcp_lib_pr_info "${1}"
63 }
64
65 # $1: test name
66 print_test()
67 {
68 test_name="${1}"
69
70 mptcp_lib_print_title "${test_name}"
71 }
72
73 test_pass()
74 {
75 mptcp_lib_pr_ok
76 mptcp_lib_result_pass "${test_name}"
77 }
78
79 test_skip()
80 {
81 mptcp_lib_pr_skip
82 mptcp_lib_result_skip "${test_name}"
83 }
84
85 # $1: msg
86 test_fail()
87 {
88 if [ ${#} -gt 0 ]
89 then
90 mptcp_lib_pr_fail "${@}"
91 fi
92 ret=${KSFT_FAIL}
93 mptcp_lib_result_fail "${test_name}"
94 }
95
96 # This function is used in the cleanup trap
97 #shellcheck disable=SC2317
98 cleanup()
99 {
100 print_title "Cleanup"
101
102 # Terminate the MPTCP connection and related processes
103 local pid
104 for pid in $client4_pid $server4_pid $client6_pid $server6_pid\
105 $server_evts_pid $client_evts_pid
106 do
107 mptcp_lib_kill_wait $pid
108 done
109
110 mptcp_lib_ns_exit "${ns1}" "${ns2}"
111
112 rm -rf $file $client_evts $server_evts
113
114 mptcp_lib_pr_info "Done"
115 }
116
117 trap cleanup EXIT
118
119 # Create and configure network namespaces for testing
120 mptcp_lib_ns_init ns1 ns2
121 for i in "$ns1" "$ns2" ;do
122 ip netns exec "$i" sysctl -q net.mptcp.pm_type=1
123 done
124
125 # "$ns1" ns2
126 # ns1eth2 ns2eth1
127
128 ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth1 netns "$ns2"
129
130 # Add IPv4/v6 addresses to the namespaces
131 ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth2
132 ip -net "$ns1" addr add 10.0.2.1/24 dev ns1eth2
133 ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth2 nodad
134 ip -net "$ns1" addr add dead:beef:2::1/64 dev ns1eth2 nodad
135 ip -net "$ns1" link set ns1eth2 up
136
137 ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1
138 ip -net "$ns2" addr add 10.0.2.2/24 dev ns2eth1
139 ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad
140 ip -net "$ns2" addr add dead:beef:2::2/64 dev ns2eth1 nodad
141 ip -net "$ns2" link set ns2eth1 up
142
143 file=$(mktemp)
144 mptcp_lib_make_file "$file" 2 1
145
146 # Capture netlink events over the two network namespaces running
147 # the MPTCP client and server
148 client_evts=$(mktemp)
149 mptcp_lib_events "${ns2}" "${client_evts}" client_evts_pid
150 server_evts=$(mktemp)
151 mptcp_lib_events "${ns1}" "${server_evts}" server_evts_pid
152 sleep 0.5
153 mptcp_lib_subtests_last_ts_reset
154
155 print_title "Init"
156 print_test "Created network namespaces ns1, ns2"
157 test_pass
158
159 make_connection()
160 {
161 local is_v6=$1
162 local app_port=$app4_port
163 local connect_addr="10.0.1.1"
164 local client_addr="10.0.1.2"
165 local listen_addr="0.0.0.0"
166 if [ "$is_v6" = "v6" ]
167 then
168 connect_addr="dead:beef:1::1"
169 client_addr="dead:beef:1::2"
170 listen_addr="::"
171 app_port=$app6_port
172 else
173 is_v6="v4"
174 fi
175
176 :>"$client_evts"
177 :>"$server_evts"
178
179 # Run the server
180 ip netns exec "$ns1" \
181 ./mptcp_connect -s MPTCP -w 300 -p $app_port -l $listen_addr > /dev/null 2>&1 &
182 local server_pid=$!
183 sleep 0.5
184
185 # Run the client, transfer $file and stay connected to the server
186 # to conduct tests
187 ip netns exec "$ns2" \
188 ./mptcp_connect -s MPTCP -w 300 -m sendfile -p $app_port $connect_addr\
189 2>&1 > /dev/null < "$file" &
190 local client_pid=$!
191 sleep 1
192
193 # Capture client/server attributes from MPTCP connection netlink events
194
195 local client_token
196 local client_port
197 local client_serverside
198 local server_token
199 local server_serverside
200
201 client_token=$(mptcp_lib_evts_get_info token "$client_evts")
202 client_port=$(mptcp_lib_evts_get_info sport "$client_evts")
203 client_serverside=$(mptcp_lib_evts_get_info server_side "$client_evts")
204 server_token=$(mptcp_lib_evts_get_info token "$server_evts")
205 server_serverside=$(mptcp_lib_evts_get_info server_side "$server_evts")
206
207 print_test "Established IP${is_v6} MPTCP Connection ns2 => ns1"
208 if [ "$client_token" != "" ] && [ "$server_token" != "" ] && [ "$client_serverside" = 0 ] &&
209 [ "$server_serverside" = 1 ]
210 then
211 test_pass
212 print_title "Connection info: ${client_addr}:${client_port} -> ${connect_addr}:${app_port}"
213 else
214 test_fail "Expected tokens (c:${client_token} - s:${server_token}) and server (c:${client_serverside} - s:${server_serverside})"
215 mptcp_lib_result_print_all_tap
216 exit ${KSFT_FAIL}
217 fi
218
219 if [ "$is_v6" = "v6" ]
220 then
221 client6_token=$client_token
222 server6_token=$server_token
223 client6_port=$client_port
224 client6_pid=$client_pid
225 server6_pid=$server_pid
226 else
227 client4_token=$client_token
228 server4_token=$server_token
229 client4_port=$client_port
230 client4_pid=$client_pid
231 server4_pid=$server_pid
232 fi
233 }
234
235 # $@: all var names to check
236 check_expected()
237 {
238 if mptcp_lib_check_expected "${@}"
239 then
240 test_pass
241 return 0
242 fi
243
244 test_fail
245 return 1
246 }
247
248 verify_announce_event()
249 {
250 local evt=$1
251 local e_type=$2
252 local e_token=$3
253 local e_addr=$4
254 local e_id=$5
255 local e_dport=$6
256 local e_af=$7
257 local type
258 local token
259 local addr
260 local dport
261 local id
262
263 type=$(mptcp_lib_evts_get_info type "$evt" $e_type)
264 token=$(mptcp_lib_evts_get_info token "$evt" $e_type)
265 if [ "$e_af" = "v6" ]
266 then
267 addr=$(mptcp_lib_evts_get_info daddr6 "$evt" $e_type)
268 else
269 addr=$(mptcp_lib_evts_get_info daddr4 "$evt" $e_type)
270 fi
271 dport=$(mptcp_lib_evts_get_info dport "$evt" $e_type)
272 id=$(mptcp_lib_evts_get_info rem_id "$evt" $e_type)
273
274 check_expected "type" "token" "addr" "dport" "id"
275 }
276
277 test_announce()
278 {
279 print_title "Announce tests"
280
281 # Capture events on the network namespace running the server
282 :>"$server_evts"
283
284 # ADD_ADDR using an invalid token should result in no action
285 local invalid_token=$(( client4_token - 1))
286 ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token $invalid_token id\
287 $client_addr_id dev ns2eth1 > /dev/null 2>&1
288
289 local type
290 type=$(mptcp_lib_evts_get_info type "$server_evts")
291 print_test "ADD_ADDR 10.0.2.2 (ns2) => ns1, invalid token"
292 if [ "$type" = "" ]
293 then
294 test_pass
295 else
296 test_fail "type defined: ${type}"
297 fi
298
299 # ADD_ADDR from the client to server machine reusing the subflow port
300 :>"$server_evts"
301 ip netns exec "$ns2"\
302 ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id $client_addr_id dev\
303 ns2eth1
304 print_test "ADD_ADDR id:client 10.0.2.2 (ns2) => ns1, reuse port"
305 sleep 0.5
306 verify_announce_event $server_evts $ANNOUNCED $server4_token "10.0.2.2" $client_addr_id \
307 "$client4_port"
308
309 # ADD_ADDR6 from the client to server machine reusing the subflow port
310 :>"$server_evts"
311 ip netns exec "$ns2" ./pm_nl_ctl ann\
312 dead:beef:2::2 token "$client6_token" id $client_addr_id dev ns2eth1
313 print_test "ADD_ADDR6 id:client dead:beef:2::2 (ns2) => ns1, reuse port"
314 sleep 0.5
315 verify_announce_event "$server_evts" "$ANNOUNCED" "$server6_token" "dead:beef:2::2"\
316 "$client_addr_id" "$client6_port" "v6"
317
318 # ADD_ADDR from the client to server machine using a new port
319 :>"$server_evts"
320 client_addr_id=$((client_addr_id+1))
321 ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\
322 $client_addr_id dev ns2eth1 port $new4_port
323 print_test "ADD_ADDR id:client+1 10.0.2.2 (ns2) => ns1, new port"
324 sleep 0.5
325 verify_announce_event "$server_evts" "$ANNOUNCED" "$server4_token" "10.0.2.2"\
326 "$client_addr_id" "$new4_port"
327
328 # Capture events on the network namespace running the client
329 :>"$client_evts"
330
331 # ADD_ADDR from the server to client machine reusing the subflow port
332 ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
333 $server_addr_id dev ns1eth2
334 print_test "ADD_ADDR id:server 10.0.2.1 (ns1) => ns2, reuse port"
335 sleep 0.5
336 verify_announce_event "$client_evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\
337 "$server_addr_id" "$app4_port"
338
339 # ADD_ADDR6 from the server to client machine reusing the subflow port
340 :>"$client_evts"
341 ip netns exec "$ns1" ./pm_nl_ctl ann dead:beef:2::1 token "$server6_token" id\
342 $server_addr_id dev ns1eth2
343 print_test "ADD_ADDR6 id:server dead:beef:2::1 (ns1) => ns2, reuse port"
344 sleep 0.5
345 verify_announce_event "$client_evts" "$ANNOUNCED" "$client6_token" "dead:beef:2::1"\
346 "$server_addr_id" "$app6_port" "v6"
347
348 # ADD_ADDR from the server to client machine using a new port
349 :>"$client_evts"
350 server_addr_id=$((server_addr_id+1))
351 ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
352 $server_addr_id dev ns1eth2 port $new4_port
353 print_test "ADD_ADDR id:server+1 10.0.2.1 (ns1) => ns2, new port"
354 sleep 0.5
355 verify_announce_event "$client_evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\
356 "$server_addr_id" "$new4_port"
357 }
358
359 verify_remove_event()
360 {
361 local evt=$1
362 local e_type=$2
363 local e_token=$3
364 local e_id=$4
365 local type
366 local token
367 local id
368
369 type=$(mptcp_lib_evts_get_info type "$evt" $e_type)
370 token=$(mptcp_lib_evts_get_info token "$evt" $e_type)
371 id=$(mptcp_lib_evts_get_info rem_id "$evt" $e_type)
372
373 check_expected "type" "token" "id"
374 }
375
376 test_remove()
377 {
378 print_title "Remove tests"
379
380 # Capture events on the network namespace running the server
381 :>"$server_evts"
382
383 # RM_ADDR using an invalid token should result in no action
384 local invalid_token=$(( client4_token - 1 ))
385 ip netns exec "$ns2" ./pm_nl_ctl rem token $invalid_token id\
386 $client_addr_id > /dev/null 2>&1
387 print_test "RM_ADDR id:client ns2 => ns1, invalid token"
388 local type
389 type=$(mptcp_lib_evts_get_info type "$server_evts")
390 if [ "$type" = "" ]
391 then
392 test_pass
393 else
394 test_fail "unexpected type: ${type}"
395 fi
396
397 # RM_ADDR using an invalid addr id should result in no action
398 local invalid_id=$(( client_addr_id + 1 ))
399 ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
400 $invalid_id > /dev/null 2>&1
401 print_test "RM_ADDR id:client+1 ns2 => ns1, invalid id"
402 type=$(mptcp_lib_evts_get_info type "$server_evts")
403 if [ "$type" = "" ]
404 then
405 test_pass
406 else
407 test_fail "unexpected type: ${type}"
408 fi
409
410 # RM_ADDR from the client to server machine
411 :>"$server_evts"
412 ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
413 $client_addr_id
414 print_test "RM_ADDR id:client ns2 => ns1"
415 sleep 0.5
416 verify_remove_event "$server_evts" "$REMOVED" "$server4_token" "$client_addr_id"
417
418 # RM_ADDR from the client to server machine
419 :>"$server_evts"
420 client_addr_id=$(( client_addr_id - 1 ))
421 ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
422 $client_addr_id
423 print_test "RM_ADDR id:client-1 ns2 => ns1"
424 sleep 0.5
425 verify_remove_event "$server_evts" "$REMOVED" "$server4_token" "$client_addr_id"
426
427 # RM_ADDR6 from the client to server machine
428 :>"$server_evts"
429 ip netns exec "$ns2" ./pm_nl_ctl rem token "$client6_token" id\
430 $client_addr_id
431 print_test "RM_ADDR6 id:client-1 ns2 => ns1"
432 sleep 0.5
433 verify_remove_event "$server_evts" "$REMOVED" "$server6_token" "$client_addr_id"
434
435 # Capture events on the network namespace running the client
436 :>"$client_evts"
437
438 # RM_ADDR from the server to client machine
439 ip netns exec "$ns1" ./pm_nl_ctl rem token "$server4_token" id\
440 $server_addr_id
441 print_test "RM_ADDR id:server ns1 => ns2"
442 sleep 0.5
443 verify_remove_event "$client_evts" "$REMOVED" "$client4_token" "$server_addr_id"
444
445 # RM_ADDR from the server to client machine
446 :>"$client_evts"
447 server_addr_id=$(( server_addr_id - 1 ))
448 ip netns exec "$ns1" ./pm_nl_ctl rem token "$server4_token" id\
449 $server_addr_id
450 print_test "RM_ADDR id:server-1 ns1 => ns2"
451 sleep 0.5
452 verify_remove_event "$client_evts" "$REMOVED" "$client4_token" "$server_addr_id"
453
454 # RM_ADDR6 from the server to client machine
455 :>"$client_evts"
456 ip netns exec "$ns1" ./pm_nl_ctl rem token "$server6_token" id\
457 $server_addr_id
458 print_test "RM_ADDR6 id:server-1 ns1 => ns2"
459 sleep 0.5
460 verify_remove_event "$client_evts" "$REMOVED" "$client6_token" "$server_addr_id"
461 }
462
463 verify_subflow_events()
464 {
465 local evt=$1
466 local e_type=$2
467 local e_token=$3
468 local e_family=$4
469 local e_saddr=$5
470 local e_daddr=$6
471 local e_dport=$7
472 local e_locid=$8
473 local e_remid=$9
474 shift 2
475 local e_from=$8
476 local e_to=$9
477 local type
478 local token
479 local family
480 local saddr
481 local daddr
482 local dport
483 local locid
484 local remid
485 local info
486 local e_dport_txt
487
488 # only display the fixed ports
489 if [ "${e_dport}" -ge "${app4_port}" ] && [ "${e_dport}" -le "${app6_port}" ]; then
490 e_dport_txt=":${e_dport}"
491 fi
492
493 info="${e_saddr} (${e_from}) => ${e_daddr}${e_dport_txt} (${e_to})"
494
495 if [ "$e_type" = "$SUB_ESTABLISHED" ]
496 then
497 if [ "$e_family" = "$AF_INET6" ]
498 then
499 print_test "CREATE_SUBFLOW6 ${info}"
500 else
501 print_test "CREATE_SUBFLOW ${info}"
502 fi
503 else
504 if [ "$e_family" = "$AF_INET6" ]
505 then
506 print_test "DESTROY_SUBFLOW6 ${info}"
507 else
508 print_test "DESTROY_SUBFLOW ${info}"
509 fi
510 fi
511
512 type=$(mptcp_lib_evts_get_info type "$evt" $e_type)
513 token=$(mptcp_lib_evts_get_info token "$evt" $e_type)
514 family=$(mptcp_lib_evts_get_info family "$evt" $e_type)
515 dport=$(mptcp_lib_evts_get_info dport "$evt" $e_type)
516 locid=$(mptcp_lib_evts_get_info loc_id "$evt" $e_type)
517 remid=$(mptcp_lib_evts_get_info rem_id "$evt" $e_type)
518 if [ "$family" = "$AF_INET6" ]
519 then
520 saddr=$(mptcp_lib_evts_get_info saddr6 "$evt" $e_type)
521 daddr=$(mptcp_lib_evts_get_info daddr6 "$evt" $e_type)
522 else
523 saddr=$(mptcp_lib_evts_get_info saddr4 "$evt" $e_type)
524 daddr=$(mptcp_lib_evts_get_info daddr4 "$evt" $e_type)
525 fi
526
527 check_expected "type" "token" "daddr" "dport" "family" "saddr" "locid" "remid"
528 }
529
530 test_subflows()
531 {
532 print_title "Subflows v4 or v6 only tests"
533
534 # Capture events on the network namespace running the server
535 :>"$server_evts"
536
537 # Attempt to add a listener at 10.0.2.2:<subflow-port>
538 ip netns exec "$ns2" ./pm_nl_ctl listen 10.0.2.2\
539 "$client4_port" &
540 local listener_pid=$!
541
542 # ADD_ADDR from client to server machine reusing the subflow port
543 ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\
544 $client_addr_id
545 sleep 0.5
546
547 # CREATE_SUBFLOW from server to client machine
548 :>"$server_evts"
549 ip netns exec "$ns1" ./pm_nl_ctl csf lip 10.0.2.1 lid 23 rip 10.0.2.2\
550 rport "$client4_port" token "$server4_token"
551 sleep 0.5
552 verify_subflow_events $server_evts $SUB_ESTABLISHED $server4_token $AF_INET "10.0.2.1" \
553 "10.0.2.2" "$client4_port" "23" "$client_addr_id" "ns1" "ns2"
554
555 # Delete the listener from the client ns, if one was created
556 mptcp_lib_kill_wait $listener_pid
557
558 local sport
559 sport=$(mptcp_lib_evts_get_info sport "$server_evts" $SUB_ESTABLISHED)
560
561 # DESTROY_SUBFLOW from server to client machine
562 :>"$server_evts"
563 ip netns exec "$ns1" ./pm_nl_ctl dsf lip 10.0.2.1 lport "$sport" rip 10.0.2.2 rport\
564 "$client4_port" token "$server4_token"
565 sleep 0.5
566 verify_subflow_events "$server_evts" "$SUB_CLOSED" "$server4_token" "$AF_INET" "10.0.2.1"\
567 "10.0.2.2" "$client4_port" "23" "$client_addr_id" "ns1" "ns2"
568
569 # RM_ADDR from client to server machine
570 ip netns exec "$ns2" ./pm_nl_ctl rem id $client_addr_id token\
571 "$client4_token"
572 sleep 0.5
573
574 # Attempt to add a listener at dead:beef:2::2:<subflow-port>
575 ip netns exec "$ns2" ./pm_nl_ctl listen dead:beef:2::2\
576 "$client6_port" &
577 listener_pid=$!
578
579 # ADD_ADDR6 from client to server machine reusing the subflow port
580 :>"$server_evts"
581 ip netns exec "$ns2" ./pm_nl_ctl ann dead:beef:2::2 token "$client6_token" id\
582 $client_addr_id
583 sleep 0.5
584
585 # CREATE_SUBFLOW6 from server to client machine
586 :>"$server_evts"
587 ip netns exec "$ns1" ./pm_nl_ctl csf lip dead:beef:2::1 lid 23 rip\
588 dead:beef:2::2 rport "$client6_port" token "$server6_token"
589 sleep 0.5
590 verify_subflow_events "$server_evts" "$SUB_ESTABLISHED" "$server6_token" "$AF_INET6"\
591 "dead:beef:2::1" "dead:beef:2::2" "$client6_port" "23"\
592 "$client_addr_id" "ns1" "ns2"
593
594 # Delete the listener from the client ns, if one was created
595 mptcp_lib_kill_wait $listener_pid
596
597 sport=$(mptcp_lib_evts_get_info sport "$server_evts" $SUB_ESTABLISHED)
598
599 # DESTROY_SUBFLOW6 from server to client machine
600 :>"$server_evts"
601 ip netns exec "$ns1" ./pm_nl_ctl dsf lip dead:beef:2::1 lport "$sport" rip\
602 dead:beef:2::2 rport "$client6_port" token "$server6_token"
603 sleep 0.5
604 verify_subflow_events "$server_evts" "$SUB_CLOSED" "$server6_token" "$AF_INET6"\
605 "dead:beef:2::1" "dead:beef:2::2" "$client6_port" "23"\
606 "$client_addr_id" "ns1" "ns2"
607
608 # RM_ADDR from client to server machine
609 ip netns exec "$ns2" ./pm_nl_ctl rem id $client_addr_id token\
610 "$client6_token"
611 sleep 0.5
612
613 # Attempt to add a listener at 10.0.2.2:<new-port>
614 ip netns exec "$ns2" ./pm_nl_ctl listen 10.0.2.2\
615 $new4_port &
616 listener_pid=$!
617
618 # ADD_ADDR from client to server machine using a new port
619 :>"$server_evts"
620 ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\
621 $client_addr_id port $new4_port
622 sleep 0.5
623
624 # CREATE_SUBFLOW from server to client machine
625 :>"$server_evts"
626 ip netns exec "$ns1" ./pm_nl_ctl csf lip 10.0.2.1 lid 23 rip 10.0.2.2 rport\
627 $new4_port token "$server4_token"
628 sleep 0.5
629 verify_subflow_events "$server_evts" "$SUB_ESTABLISHED" "$server4_token" "$AF_INET"\
630 "10.0.2.1" "10.0.2.2" "$new4_port" "23"\
631 "$client_addr_id" "ns1" "ns2"
632
633 # Delete the listener from the client ns, if one was created
634 mptcp_lib_kill_wait $listener_pid
635
636 sport=$(mptcp_lib_evts_get_info sport "$server_evts" $SUB_ESTABLISHED)
637
638 # DESTROY_SUBFLOW from server to client machine
639 :>"$server_evts"
640 ip netns exec "$ns1" ./pm_nl_ctl dsf lip 10.0.2.1 lport "$sport" rip 10.0.2.2 rport\
641 $new4_port token "$server4_token"
642 sleep 0.5
643 verify_subflow_events "$server_evts" "$SUB_CLOSED" "$server4_token" "$AF_INET" "10.0.2.1"\
644 "10.0.2.2" "$new4_port" "23" "$client_addr_id" "ns1" "ns2"
645
646 # RM_ADDR from client to server machine
647 ip netns exec "$ns2" ./pm_nl_ctl rem id $client_addr_id token\
648 "$client4_token"
649
650 # Capture events on the network namespace running the client
651 :>"$client_evts"
652
653 # Attempt to add a listener at 10.0.2.1:<subflow-port>
654 ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\
655 $app4_port &
656 listener_pid=$!
657
658 # ADD_ADDR from server to client machine reusing the subflow port
659 ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
660 $server_addr_id
661 sleep 0.5
662
663 # CREATE_SUBFLOW from client to server machine
664 :>"$client_evts"
665 ip netns exec "$ns2" ./pm_nl_ctl csf lip 10.0.2.2 lid 23 rip 10.0.2.1 rport\
666 $app4_port token "$client4_token"
667 sleep 0.5
668 verify_subflow_events $client_evts $SUB_ESTABLISHED $client4_token $AF_INET "10.0.2.2"\
669 "10.0.2.1" "$app4_port" "23" "$server_addr_id" "ns2" "ns1"
670
671 # Delete the listener from the server ns, if one was created
672 mptcp_lib_kill_wait $listener_pid
673
674 sport=$(mptcp_lib_evts_get_info sport "$client_evts" $SUB_ESTABLISHED)
675
676 # DESTROY_SUBFLOW from client to server machine
677 :>"$client_evts"
678 ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
679 $app4_port token "$client4_token"
680 sleep 0.5
681 verify_subflow_events "$client_evts" "$SUB_CLOSED" "$client4_token" "$AF_INET" "10.0.2.2"\
682 "10.0.2.1" "$app4_port" "23" "$server_addr_id" "ns2" "ns1"
683
684 # RM_ADDR from server to client machine
685 ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
686 "$server4_token"
687 sleep 0.5
688
689 # Attempt to add a listener at dead:beef:2::1:<subflow-port>
690 ip netns exec "$ns1" ./pm_nl_ctl listen dead:beef:2::1\
691 $app6_port &
692 listener_pid=$!
693
694 # ADD_ADDR6 from server to client machine reusing the subflow port
695 :>"$client_evts"
696 ip netns exec "$ns1" ./pm_nl_ctl ann dead:beef:2::1 token "$server6_token" id\
697 $server_addr_id
698 sleep 0.5
699
700 # CREATE_SUBFLOW6 from client to server machine
701 :>"$client_evts"
702 ip netns exec "$ns2" ./pm_nl_ctl csf lip dead:beef:2::2 lid 23 rip\
703 dead:beef:2::1 rport $app6_port token "$client6_token"
704 sleep 0.5
705 verify_subflow_events "$client_evts" "$SUB_ESTABLISHED" "$client6_token"\
706 "$AF_INET6" "dead:beef:2::2"\
707 "dead:beef:2::1" "$app6_port" "23"\
708 "$server_addr_id" "ns2" "ns1"
709
710 # Delete the listener from the server ns, if one was created
711 mptcp_lib_kill_wait $listener_pid
712
713 sport=$(mptcp_lib_evts_get_info sport "$client_evts" $SUB_ESTABLISHED)
714
715 # DESTROY_SUBFLOW6 from client to server machine
716 :>"$client_evts"
717 ip netns exec "$ns2" ./pm_nl_ctl dsf lip dead:beef:2::2 lport "$sport" rip\
718 dead:beef:2::1 rport $app6_port token "$client6_token"
719 sleep 0.5
720 verify_subflow_events $client_evts $SUB_CLOSED $client6_token $AF_INET6 "dead:beef:2::2"\
721 "dead:beef:2::1" "$app6_port" "23" "$server_addr_id" "ns2" "ns1"
722
723 # RM_ADDR6 from server to client machine
724 ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
725 "$server6_token"
726 sleep 0.5
727
728 # Attempt to add a listener at 10.0.2.1:<new-port>
729 ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\
730 $new4_port &
731 listener_pid=$!
732
733 # ADD_ADDR from server to client machine using a new port
734 :>"$client_evts"
735 ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
736 $server_addr_id port $new4_port
737 sleep 0.5
738
739 # CREATE_SUBFLOW from client to server machine
740 :>"$client_evts"
741 ip netns exec "$ns2" ./pm_nl_ctl csf lip 10.0.2.2 lid 23 rip 10.0.2.1 rport\
742 $new4_port token "$client4_token"
743 sleep 0.5
744 verify_subflow_events "$client_evts" "$SUB_ESTABLISHED" "$client4_token" "$AF_INET"\
745 "10.0.2.2" "10.0.2.1" "$new4_port" "23" "$server_addr_id" "ns2" "ns1"
746
747 # Delete the listener from the server ns, if one was created
748 mptcp_lib_kill_wait $listener_pid
749
750 sport=$(mptcp_lib_evts_get_info sport "$client_evts" $SUB_ESTABLISHED)
751
752 # DESTROY_SUBFLOW from client to server machine
753 :>"$client_evts"
754 ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
755 $new4_port token "$client4_token"
756 sleep 0.5
757 verify_subflow_events "$client_evts" "$SUB_CLOSED" "$client4_token" "$AF_INET" "10.0.2.2"\
758 "10.0.2.1" "$new4_port" "23" "$server_addr_id" "ns2" "ns1"
759
760 # RM_ADDR from server to client machine
761 ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
762 "$server4_token"
763 }
764
765 test_subflows_v4_v6_mix()
766 {
767 print_title "Subflows v4 and v6 mix tests"
768
769 # Attempt to add a listener at 10.0.2.1:<subflow-port>
770 ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\
771 $app6_port &
772 local listener_pid=$!
773
774 # ADD_ADDR4 from server to client machine reusing the subflow port on
775 # the established v6 connection
776 :>"$client_evts"
777 ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server6_token" id\
778 $server_addr_id dev ns1eth2
779 print_test "ADD_ADDR4 id:server 10.0.2.1 (ns1) => ns2, reuse port"
780 sleep 0.5
781 verify_announce_event "$client_evts" "$ANNOUNCED" "$client6_token" "10.0.2.1"\
782 "$server_addr_id" "$app6_port"
783
784 # CREATE_SUBFLOW from client to server machine
785 :>"$client_evts"
786 ip netns exec "$ns2" ./pm_nl_ctl csf lip 10.0.2.2 lid 23 rip 10.0.2.1 rport\
787 $app6_port token "$client6_token"
788 sleep 0.5
789 verify_subflow_events "$client_evts" "$SUB_ESTABLISHED" "$client6_token"\
790 "$AF_INET" "10.0.2.2" "10.0.2.1" "$app6_port" "23"\
791 "$server_addr_id" "ns2" "ns1"
792
793 # Delete the listener from the server ns, if one was created
794 mptcp_lib_kill_wait $listener_pid
795
796 sport=$(mptcp_lib_evts_get_info sport "$client_evts" $SUB_ESTABLISHED)
797
798 # DESTROY_SUBFLOW from client to server machine
799 :>"$client_evts"
800 ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
801 $app6_port token "$client6_token"
802 sleep 0.5
803 verify_subflow_events "$client_evts" "$SUB_CLOSED" "$client6_token" \
804 "$AF_INET" "10.0.2.2" "10.0.2.1" "$app6_port" "23"\
805 "$server_addr_id" "ns2" "ns1"
806
807 # RM_ADDR from server to client machine
808 ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
809 "$server6_token"
810 sleep 0.5
811 }
812
813 test_prio()
814 {
815 print_title "Prio tests"
816
817 local count
818
819 # Send MP_PRIO signal from client to server machine
820 ip netns exec "$ns2" ./pm_nl_ctl set 10.0.1.2 port "$client4_port" flags backup token "$client4_token" rip 10.0.1.1 rport "$app4_port"
821 sleep 0.5
822
823 # Check TX
824 print_test "MP_PRIO TX"
825 count=$(mptcp_lib_get_counter "$ns2" "MPTcpExtMPPrioTx")
826 if [ -z "$count" ]; then
827 test_skip
828 elif [ $count != 1 ]; then
829 test_fail "Count != 1: ${count}"
830 else
831 test_pass
832 fi
833
834 # Check RX
835 print_test "MP_PRIO RX"
836 count=$(mptcp_lib_get_counter "$ns1" "MPTcpExtMPPrioRx")
837 if [ -z "$count" ]; then
838 test_skip
839 elif [ $count != 1 ]; then
840 test_fail "Count != 1: ${count}"
841 else
842 test_pass
843 fi
844 }
845
846 verify_listener_events()
847 {
848 if mptcp_lib_verify_listener_events "${@}"; then
849 test_pass
850 else
851 test_fail
852 fi
853 }
854
855 test_listener()
856 {
857 print_title "Listener tests"
858
859 if ! mptcp_lib_kallsyms_has "mptcp_event_pm_listener$"; then
860 print_test "LISTENER events"
861 test_skip
862 return
863 fi
864
865 # Capture events on the network namespace running the client
866 :>$client_evts
867
868 # Attempt to add a listener at 10.0.2.2:<subflow-port>
869 ip netns exec $ns2 ./pm_nl_ctl listen 10.0.2.2\
870 $client4_port &
871 local listener_pid=$!
872
873 sleep 0.5
874 print_test "CREATE_LISTENER 10.0.2.2 (client port)"
875 verify_listener_events $client_evts $LISTENER_CREATED $AF_INET 10.0.2.2 $client4_port
876
877 # ADD_ADDR from client to server machine reusing the subflow port
878 ip netns exec $ns2 ./pm_nl_ctl ann 10.0.2.2 token $client4_token id\
879 $client_addr_id
880 sleep 0.5
881
882 # CREATE_SUBFLOW from server to client machine
883 ip netns exec $ns1 ./pm_nl_ctl csf lip 10.0.2.1 lid 23 rip 10.0.2.2\
884 rport $client4_port token $server4_token
885 sleep 0.5
886
887 # Delete the listener from the client ns, if one was created
888 mptcp_lib_kill_wait $listener_pid
889
890 sleep 0.5
891 print_test "CLOSE_LISTENER 10.0.2.2 (client port)"
892 verify_listener_events $client_evts $LISTENER_CLOSED $AF_INET 10.0.2.2 $client4_port
893 }
894
895 print_title "Make connections"
896 make_connection
897 make_connection "v6"
898 print_title "Will be using address IDs ${client_addr_id} (client) and ${server_addr_id} (server)"
899
900 test_announce
901 test_remove
902 test_subflows
903 test_subflows_v4_v6_mix
904 test_prio
905 test_listener
906
907 mptcp_lib_result_print_all_tap
908 exit ${ret}
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