2 # SPDX-License-Identifier: GPL-2.0
4 . "$(dirname "${0}")/mptcp_lib.sh"
8 ip -Version > /dev/null 2>&1
10 echo "SKIP: Cannot not run test without ip tool"
14 ANNOUNCED=6 # MPTCP_EVENT_ANNOUNCED
15 REMOVED=7 # MPTCP_EVENT_REMOVED
16 SUB_ESTABLISHED=10 # MPTCP_EVENT_SUB_ESTABLISHED
17 SUB_CLOSED=11 # MPTCP_EVENT_SUB_CLOSED
36 client_addr_id=${RANDOM:0:2}
37 server_addr_id=${RANDOM:0:2}
40 rndh=$(stdbuf -o0 -e0 printf %x "$sec")-$(mktemp -u XXXXXX)
46 kill $1 > /dev/null 2>&1
56 # Terminate the MPTCP connection and related processes
57 if [ $client4_pid -ne 0 ]; then
58 kill -SIGUSR1 $client4_pid > /dev/null 2>&1
60 if [ $server4_pid -ne 0 ]; then
61 kill_wait $server4_pid
63 if [ $client6_pid -ne 0 ]; then
64 kill -SIGUSR1 $client6_pid > /dev/null 2>&1
66 if [ $server6_pid -ne 0 ]; then
67 kill_wait $server6_pid
69 if [ $evts_pid -ne 0 ]; then
73 for netns in "$ns1" "$ns2" ;do
80 # Create and configure network namespaces for testing
81 for i in "$ns1" "$ns2" ;do
82 ip netns add "$i" || exit 1
83 ip -net "$i" link set lo up
84 ip netns exec "$i" sysctl -q net.mptcp.enabled=1
85 ip netns exec "$i" sysctl -q net.mptcp.pm_type=1
91 ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth1 netns "$ns2"
93 # Add IPv4/v6 addresses to the namespaces
94 ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth2
95 ip -net "$ns1" addr add 10.0.2.1/24 dev ns1eth2
96 ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth2 nodad
97 ip -net "$ns1" addr add dead:beef:2::1/64 dev ns1eth2 nodad
98 ip -net "$ns1" link set ns1eth2 up
100 ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1
101 ip -net "$ns2" addr add 10.0.2.2/24 dev ns2eth1
102 ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad
103 ip -net "$ns2" addr add dead:beef:2::2/64 dev ns2eth1 nodad
104 ip -net "$ns2" link set ns2eth1 up
106 stdbuf -o0 -e0 printf "Created network namespaces ns1, ns2 \t\t\t[OK]\n"
110 # Store a chunk of data in a file to transmit over an MPTCP connection
114 dd if=/dev/urandom of="$name" bs=2 count=$ksize 2> /dev/null
115 echo -e "\nMPTCP_TEST_FILE_END_MARKER" >> "$name"
122 make_file "$file" "client"
125 local app_port=$app4_port
126 local connect_addr="10.0.1.1"
127 local listen_addr="0.0.0.0"
128 if [ "$is_v6" = "v6" ]
130 connect_addr="dead:beef:1::1"
137 # Capture netlink events over the two network namespaces running
138 # the MPTCP client and server
140 client_evts=$(mktemp)
142 ip netns exec "$ns2" ./pm_nl_ctl events >> "$client_evts" 2>&1 &
143 local client_evts_pid=$!
145 server_evts=$(mktemp)
147 ip netns exec "$ns1" ./pm_nl_ctl events >> "$server_evts" 2>&1 &
148 local server_evts_pid=$!
152 ip netns exec "$ns1" \
153 ./mptcp_connect -s MPTCP -w 300 -p $app_port -l $listen_addr > /dev/null 2>&1 &
157 # Run the client, transfer $file and stay connected to the server
159 ip netns exec "$ns2" \
160 ./mptcp_connect -s MPTCP -w 300 -m sendfile -p $app_port $connect_addr\
161 2>&1 > /dev/null < "$file" &
165 # Capture client/server attributes from MPTCP connection netlink events
166 kill_wait $client_evts_pid
170 local client_serverside
172 local server_serverside
174 client_token=$(sed --unbuffered -n 's/.*\(token:\)\([[:digit:]]*\).*$/\2/p;q' "$client_evts")
175 client_port=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$client_evts")
176 client_serverside=$(sed --unbuffered -n 's/.*\(server_side:\)\([[:digit:]]*\).*$/\2/p;q'\
178 kill_wait $server_evts_pid
179 server_token=$(sed --unbuffered -n 's/.*\(token:\)\([[:digit:]]*\).*$/\2/p;q' "$server_evts")
180 server_serverside=$(sed --unbuffered -n 's/.*\(server_side:\)\([[:digit:]]*\).*$/\2/p;q'\
182 rm -f "$client_evts" "$server_evts" "$file"
184 if [ "$client_token" != "" ] && [ "$server_token" != "" ] && [ "$client_serverside" = 0 ] &&
185 [ "$server_serverside" = 1 ]
187 stdbuf -o0 -e0 printf "Established IP%s MPTCP Connection ns2 => ns1 \t\t[OK]\n" $is_v6
192 if [ "$is_v6" = "v6" ]
194 client6_token=$client_token
195 server6_token=$server_token
196 client6_port=$client_port
197 client6_pid=$client_pid
198 server6_pid=$server_pid
200 client4_token=$client_token
201 server4_token=$server_token
202 client4_port=$client_port
203 client4_pid=$client_pid
204 server4_pid=$server_pid
208 verify_announce_event()
223 type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$evt")
224 token=$(sed --unbuffered -n 's/.*\(token:\)\([[:digit:]]*\).*$/\2/p;q' "$evt")
225 if [ "$e_af" = "v6" ]
227 addr=$(sed --unbuffered -n 's/.*\(daddr6:\)\([0-9a-f:.]*\).*$/\2/p;q' "$evt")
229 addr=$(sed --unbuffered -n 's/.*\(daddr4:\)\([0-9.]*\).*$/\2/p;q' "$evt")
231 dport=$(sed --unbuffered -n 's/.*\(dport:\)\([[:digit:]]*\).*$/\2/p;q' "$evt")
232 id=$(sed --unbuffered -n 's/.*\(rem_id:\)\([[:digit:]]*\).*$/\2/p;q' "$evt")
233 if [ "$type" = "$e_type" ] && [ "$token" = "$e_token" ] &&
234 [ "$addr" = "$e_addr" ] && [ "$dport" = "$e_dport" ] &&
237 stdbuf -o0 -e0 printf "[OK]\n"
240 stdbuf -o0 -e0 printf "[FAIL]\n"
248 # Capture events on the network namespace running the server
250 ip netns exec "$ns1" ./pm_nl_ctl events >> "$evts" 2>&1 &
254 # ADD_ADDR using an invalid token should result in no action
255 local invalid_token=$(( client4_token - 1))
256 ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token $invalid_token id\
257 $client_addr_id dev ns2eth1 > /dev/null 2>&1
260 type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
261 stdbuf -o0 -e0 printf "ADD_ADDR 10.0.2.2 (ns2) => ns1, invalid token \t\t"
264 stdbuf -o0 -e0 printf "[OK]\n"
266 stdbuf -o0 -e0 printf "[FAIL]\n"
270 # ADD_ADDR from the client to server machine reusing the subflow port
272 ip netns exec "$ns2"\
273 ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id $client_addr_id dev\
274 ns2eth1 > /dev/null 2>&1
275 stdbuf -o0 -e0 printf "ADD_ADDR id:%d 10.0.2.2 (ns2) => ns1, reuse port \t\t" $client_addr_id
277 verify_announce_event "$evts" "$ANNOUNCED" "$server4_token" "10.0.2.2" "$client_addr_id"\
280 # ADD_ADDR6 from the client to server machine reusing the subflow port
282 ip netns exec "$ns2" ./pm_nl_ctl ann\
283 dead:beef:2::2 token "$client6_token" id $client_addr_id dev ns2eth1 > /dev/null 2>&1
284 stdbuf -o0 -e0 printf "ADD_ADDR6 id:%d dead:beef:2::2 (ns2) => ns1, reuse port\t\t" $client_addr_id
286 verify_announce_event "$evts" "$ANNOUNCED" "$server6_token" "dead:beef:2::2"\
287 "$client_addr_id" "$client6_port" "v6"
289 # ADD_ADDR from the client to server machine using a new port
291 client_addr_id=$((client_addr_id+1))
292 ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\
293 $client_addr_id dev ns2eth1 port $new4_port > /dev/null 2>&1
294 stdbuf -o0 -e0 printf "ADD_ADDR id:%d 10.0.2.2 (ns2) => ns1, new port \t\t\t" $client_addr_id
296 verify_announce_event "$evts" "$ANNOUNCED" "$server4_token" "10.0.2.2"\
297 "$client_addr_id" "$new4_port"
301 # Capture events on the network namespace running the client
303 ip netns exec "$ns2" ./pm_nl_ctl events >> "$evts" 2>&1 &
307 # ADD_ADDR from the server to client machine reusing the subflow port
308 ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
309 $server_addr_id dev ns1eth2 > /dev/null 2>&1
310 stdbuf -o0 -e0 printf "ADD_ADDR id:%d 10.0.2.1 (ns1) => ns2, reuse port \t\t" $server_addr_id
312 verify_announce_event "$evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\
313 "$server_addr_id" "$app4_port"
315 # ADD_ADDR6 from the server to client machine reusing the subflow port
317 ip netns exec "$ns1" ./pm_nl_ctl ann dead:beef:2::1 token "$server6_token" id\
318 $server_addr_id dev ns1eth2 > /dev/null 2>&1
319 stdbuf -o0 -e0 printf "ADD_ADDR6 id:%d dead:beef:2::1 (ns1) => ns2, reuse port\t\t" $server_addr_id
321 verify_announce_event "$evts" "$ANNOUNCED" "$client6_token" "dead:beef:2::1"\
322 "$server_addr_id" "$app6_port" "v6"
324 # ADD_ADDR from the server to client machine using a new port
326 server_addr_id=$((server_addr_id+1))
327 ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
328 $server_addr_id dev ns1eth2 port $new4_port > /dev/null 2>&1
329 stdbuf -o0 -e0 printf "ADD_ADDR id:%d 10.0.2.1 (ns1) => ns2, new port \t\t\t" $server_addr_id
331 verify_announce_event "$evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\
332 "$server_addr_id" "$new4_port"
338 verify_remove_event()
348 type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$evt")
349 token=$(sed --unbuffered -n 's/.*\(token:\)\([[:digit:]]*\).*$/\2/p;q' "$evt")
350 id=$(sed --unbuffered -n 's/.*\(rem_id:\)\([[:digit:]]*\).*$/\2/p;q' "$evt")
351 if [ "$type" = "$e_type" ] && [ "$token" = "$e_token" ] &&
354 stdbuf -o0 -e0 printf "[OK]\n"
357 stdbuf -o0 -e0 printf "[FAIL]\n"
366 # Capture events on the network namespace running the server
368 ip netns exec "$ns1" ./pm_nl_ctl events >> "$evts" 2>&1 &
372 # RM_ADDR using an invalid token should result in no action
373 local invalid_token=$(( client4_token - 1 ))
374 ip netns exec "$ns2" ./pm_nl_ctl rem token $invalid_token id\
375 $client_addr_id > /dev/null 2>&1
376 stdbuf -o0 -e0 printf "RM_ADDR id:%d ns2 => ns1, invalid token \t"\
379 type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
382 stdbuf -o0 -e0 printf "[OK]\n"
384 stdbuf -o0 -e0 printf "[FAIL]\n"
387 # RM_ADDR using an invalid addr id should result in no action
388 local invalid_id=$(( client_addr_id + 1 ))
389 ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
390 $invalid_id > /dev/null 2>&1
391 stdbuf -o0 -e0 printf "RM_ADDR id:%d ns2 => ns1, invalid id \t"\
393 type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
396 stdbuf -o0 -e0 printf "[OK]\n"
398 stdbuf -o0 -e0 printf "[FAIL]\n"
401 # RM_ADDR from the client to server machine
403 ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
404 $client_addr_id > /dev/null 2>&1
405 stdbuf -o0 -e0 printf "RM_ADDR id:%d ns2 => ns1 \t"\
408 verify_remove_event "$evts" "$REMOVED" "$server4_token" "$client_addr_id"
410 # RM_ADDR from the client to server machine
412 client_addr_id=$(( client_addr_id - 1 ))
413 ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
414 $client_addr_id > /dev/null 2>&1
415 stdbuf -o0 -e0 printf "RM_ADDR id:%d ns2 => ns1 \t"\
418 verify_remove_event "$evts" "$REMOVED" "$server4_token" "$client_addr_id"
420 # RM_ADDR6 from the client to server machine
422 ip netns exec "$ns2" ./pm_nl_ctl rem token "$client6_token" id\
423 $client_addr_id > /dev/null 2>&1
424 stdbuf -o0 -e0 printf "RM_ADDR6 id:%d ns2 => ns1 \t"\
427 verify_remove_event "$evts" "$REMOVED" "$server6_token" "$client_addr_id"
431 # Capture events on the network namespace running the client
433 ip netns exec "$ns2" ./pm_nl_ctl events >> "$evts" 2>&1 &
437 # RM_ADDR from the server to client machine
438 ip netns exec "$ns1" ./pm_nl_ctl rem token "$server4_token" id\
439 $server_addr_id > /dev/null 2>&1
440 stdbuf -o0 -e0 printf "RM_ADDR id:%d ns1 => ns2 \t"\
443 verify_remove_event "$evts" "$REMOVED" "$client4_token" "$server_addr_id"
445 # RM_ADDR from the server to client machine
447 server_addr_id=$(( server_addr_id - 1 ))
448 ip netns exec "$ns1" ./pm_nl_ctl rem token "$server4_token" id\
449 $server_addr_id > /dev/null 2>&1
450 stdbuf -o0 -e0 printf "RM_ADDR id:%d ns1 => ns2 \t" $server_addr_id
452 verify_remove_event "$evts" "$REMOVED" "$client4_token" "$server_addr_id"
454 # RM_ADDR6 from the server to client machine
456 ip netns exec "$ns1" ./pm_nl_ctl rem token "$server6_token" id\
457 $server_addr_id > /dev/null 2>&1
458 stdbuf -o0 -e0 printf "RM_ADDR6 id:%d ns1 => ns2 \t" $server_addr_id
460 verify_remove_event "$evts" "$REMOVED" "$client6_token" "$server_addr_id"
466 verify_subflow_events()
489 if [ "$e_type" = "$SUB_ESTABLISHED" ]
491 if [ "$e_family" = "$AF_INET6" ]
493 stdbuf -o0 -e0 printf "CREATE_SUBFLOW6 %s (%s) => %s (%s) "\
494 "$e_saddr" "$e_from" "$e_daddr" "$e_to"
496 stdbuf -o0 -e0 printf "CREATE_SUBFLOW %s (%s) => %s (%s) \t"\
497 "$e_saddr" "$e_from" "$e_daddr" "$e_to"
500 if [ "$e_family" = "$AF_INET6" ]
502 stdbuf -o0 -e0 printf "DESTROY_SUBFLOW6 %s (%s) => %s (%s) "\
503 "$e_saddr" "$e_from" "$e_daddr" "$e_to"
505 stdbuf -o0 -e0 printf "DESTROY_SUBFLOW %s (%s) => %s (%s) \t"\
506 "$e_saddr" "$e_from" "$e_daddr" "$e_to"
510 type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$evt")
511 token=$(sed --unbuffered -n 's/.*\(token:\)\([[:digit:]]*\).*$/\2/p;q' "$evt")
512 family=$(sed --unbuffered -n 's/.*\(family:\)\([[:digit:]]*\).*$/\2/p;q' "$evt")
513 dport=$(sed --unbuffered -n 's/.*\(dport:\)\([[:digit:]]*\).*$/\2/p;q' "$evt")
514 locid=$(sed --unbuffered -n 's/.*\(loc_id:\)\([[:digit:]]*\).*$/\2/p;q' "$evt")
515 remid=$(sed --unbuffered -n 's/.*\(rem_id:\)\([[:digit:]]*\).*$/\2/p;q' "$evt")
516 if [ "$family" = "$AF_INET6" ]
518 saddr=$(sed --unbuffered -n 's/.*\(saddr6:\)\([0-9a-f:.]*\).*$/\2/p;q' "$evt")
519 daddr=$(sed --unbuffered -n 's/.*\(daddr6:\)\([0-9a-f:.]*\).*$/\2/p;q' "$evt")
521 saddr=$(sed --unbuffered -n 's/.*\(saddr4:\)\([0-9.]*\).*$/\2/p;q' "$evt")
522 daddr=$(sed --unbuffered -n 's/.*\(daddr4:\)\([0-9.]*\).*$/\2/p;q' "$evt")
525 if [ "$type" = "$e_type" ] && [ "$token" = "$e_token" ] &&
526 [ "$daddr" = "$e_daddr" ] && [ "$e_dport" = "$dport" ] &&
527 [ "$family" = "$e_family" ] && [ "$saddr" = "$e_saddr" ] &&
528 [ "$e_locid" = "$locid" ] && [ "$e_remid" = "$remid" ]
530 stdbuf -o0 -e0 printf "[OK]\n"
533 stdbuf -o0 -e0 printf "[FAIL]\n"
541 # Capture events on the network namespace running the server
543 ip netns exec "$ns1" ./pm_nl_ctl events >> "$evts" 2>&1 &
547 # Attempt to add a listener at 10.0.2.2:<subflow-port>
548 ip netns exec "$ns2" ./pm_nl_ctl listen 10.0.2.2\
549 "$client4_port" > /dev/null 2>&1 &
550 local listener_pid=$!
552 # ADD_ADDR from client to server machine reusing the subflow port
553 ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\
554 $client_addr_id > /dev/null 2>&1
557 # CREATE_SUBFLOW from server to client machine
559 ip netns exec "$ns1" ./pm_nl_ctl csf lip 10.0.2.1 lid 23 rip 10.0.2.2\
560 rport "$client4_port" token "$server4_token" > /dev/null 2>&1
562 verify_subflow_events "$evts" "$SUB_ESTABLISHED" "$server4_token" "$AF_INET" "10.0.2.1"\
563 "10.0.2.2" "$client4_port" "23" "$client_addr_id" "ns1" "ns2"
565 # Delete the listener from the client ns, if one was created
566 kill_wait $listener_pid
569 sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
571 # DESTROY_SUBFLOW from server to client machine
573 ip netns exec "$ns1" ./pm_nl_ctl dsf lip 10.0.2.1 lport "$sport" rip 10.0.2.2 rport\
574 "$client4_port" token "$server4_token" > /dev/null 2>&1
576 verify_subflow_events "$evts" "$SUB_CLOSED" "$server4_token" "$AF_INET" "10.0.2.1"\
577 "10.0.2.2" "$client4_port" "23" "$client_addr_id" "ns1" "ns2"
579 # RM_ADDR from client to server machine
580 ip netns exec "$ns2" ./pm_nl_ctl rem id $client_addr_id token\
581 "$client4_token" > /dev/null 2>&1
584 # Attempt to add a listener at dead:beef:2::2:<subflow-port>
585 ip netns exec "$ns2" ./pm_nl_ctl listen dead:beef:2::2\
586 "$client6_port" > /dev/null 2>&1 &
589 # ADD_ADDR6 from client to server machine reusing the subflow port
591 ip netns exec "$ns2" ./pm_nl_ctl ann dead:beef:2::2 token "$client6_token" id\
592 $client_addr_id > /dev/null 2>&1
595 # CREATE_SUBFLOW6 from server to client machine
597 ip netns exec "$ns1" ./pm_nl_ctl csf lip dead:beef:2::1 lid 23 rip\
598 dead:beef:2::2 rport "$client6_port" token "$server6_token" > /dev/null 2>&1
600 verify_subflow_events "$evts" "$SUB_ESTABLISHED" "$server6_token" "$AF_INET6"\
601 "dead:beef:2::1" "dead:beef:2::2" "$client6_port" "23"\
602 "$client_addr_id" "ns1" "ns2"
604 # Delete the listener from the client ns, if one was created
605 kill_wait $listener_pid
607 sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
609 # DESTROY_SUBFLOW6 from server to client machine
611 ip netns exec "$ns1" ./pm_nl_ctl dsf lip dead:beef:2::1 lport "$sport" rip\
612 dead:beef:2::2 rport "$client6_port" token "$server6_token" > /dev/null 2>&1
614 verify_subflow_events "$evts" "$SUB_CLOSED" "$server6_token" "$AF_INET6"\
615 "dead:beef:2::1" "dead:beef:2::2" "$client6_port" "23"\
616 "$client_addr_id" "ns1" "ns2"
618 # RM_ADDR from client to server machine
619 ip netns exec "$ns2" ./pm_nl_ctl rem id $client_addr_id token\
620 "$client6_token" > /dev/null 2>&1
623 # Attempt to add a listener at 10.0.2.2:<new-port>
624 ip netns exec "$ns2" ./pm_nl_ctl listen 10.0.2.2\
625 $new4_port > /dev/null 2>&1 &
628 # ADD_ADDR from client to server machine using a new port
630 ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\
631 $client_addr_id port $new4_port > /dev/null 2>&1
634 # CREATE_SUBFLOW from server to client machine
636 ip netns exec "$ns1" ./pm_nl_ctl csf lip 10.0.2.1 lid 23 rip 10.0.2.2 rport\
637 $new4_port token "$server4_token" > /dev/null 2>&1
639 verify_subflow_events "$evts" "$SUB_ESTABLISHED" "$server4_token" "$AF_INET"\
640 "10.0.2.1" "10.0.2.2" "$new4_port" "23"\
641 "$client_addr_id" "ns1" "ns2"
643 # Delete the listener from the client ns, if one was created
644 kill_wait $listener_pid
646 sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
648 # DESTROY_SUBFLOW from server to client machine
650 ip netns exec "$ns1" ./pm_nl_ctl dsf lip 10.0.2.1 lport "$sport" rip 10.0.2.2 rport\
651 $new4_port token "$server4_token" > /dev/null 2>&1
653 verify_subflow_events "$evts" "$SUB_CLOSED" "$server4_token" "$AF_INET" "10.0.2.1"\
654 "10.0.2.2" "$new4_port" "23" "$client_addr_id" "ns1" "ns2"
656 # RM_ADDR from client to server machine
657 ip netns exec "$ns2" ./pm_nl_ctl rem id $client_addr_id token\
658 "$client4_token" > /dev/null 2>&1
662 # Capture events on the network namespace running the client
664 ip netns exec "$ns2" ./pm_nl_ctl events >> "$evts" 2>&1 &
668 # Attempt to add a listener at 10.0.2.1:<subflow-port>
669 ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\
670 $app4_port > /dev/null 2>&1 &
673 # ADD_ADDR from server to client machine reusing the subflow port
674 ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
675 $server_addr_id > /dev/null 2>&1
678 # CREATE_SUBFLOW from client to server machine
680 ip netns exec "$ns2" ./pm_nl_ctl csf lip 10.0.2.2 lid 23 rip 10.0.2.1 rport\
681 $app4_port token "$client4_token" > /dev/null 2>&1
683 verify_subflow_events "$evts" "$SUB_ESTABLISHED" "$client4_token" "$AF_INET" "10.0.2.2"\
684 "10.0.2.1" "$app4_port" "23" "$server_addr_id" "ns2" "ns1"
686 # Delete the listener from the server ns, if one was created
687 kill_wait $listener_pid
689 sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
691 # DESTROY_SUBFLOW from client to server machine
693 ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
694 $app4_port token "$client4_token" > /dev/null 2>&1
696 verify_subflow_events "$evts" "$SUB_CLOSED" "$client4_token" "$AF_INET" "10.0.2.2"\
697 "10.0.2.1" "$app4_port" "23" "$server_addr_id" "ns2" "ns1"
699 # RM_ADDR from server to client machine
700 ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
701 "$server4_token" > /dev/null 2>&1
704 # Attempt to add a listener at dead:beef:2::1:<subflow-port>
705 ip netns exec "$ns1" ./pm_nl_ctl listen dead:beef:2::1\
706 $app6_port > /dev/null 2>&1 &
709 # ADD_ADDR6 from server to client machine reusing the subflow port
711 ip netns exec "$ns1" ./pm_nl_ctl ann dead:beef:2::1 token "$server6_token" id\
712 $server_addr_id > /dev/null 2>&1
715 # CREATE_SUBFLOW6 from client to server machine
717 ip netns exec "$ns2" ./pm_nl_ctl csf lip dead:beef:2::2 lid 23 rip\
718 dead:beef:2::1 rport $app6_port token "$client6_token" > /dev/null 2>&1
720 verify_subflow_events "$evts" "$SUB_ESTABLISHED" "$client6_token"\
721 "$AF_INET6" "dead:beef:2::2"\
722 "dead:beef:2::1" "$app6_port" "23"\
723 "$server_addr_id" "ns2" "ns1"
725 # Delete the listener from the server ns, if one was created
726 kill_wait $listener_pid
728 sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
730 # DESTROY_SUBFLOW6 from client to server machine
732 ip netns exec "$ns2" ./pm_nl_ctl dsf lip dead:beef:2::2 lport "$sport" rip\
733 dead:beef:2::1 rport $app6_port token "$client6_token" > /dev/null 2>&1
735 verify_subflow_events "$evts" "$SUB_CLOSED" "$client6_token" "$AF_INET6" "dead:beef:2::2"\
736 "dead:beef:2::1" "$app6_port" "23" "$server_addr_id" "ns2" "ns1"
738 # RM_ADDR6 from server to client machine
739 ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
740 "$server6_token" > /dev/null 2>&1
743 # Attempt to add a listener at 10.0.2.1:<new-port>
744 ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\
745 $new4_port > /dev/null 2>&1 &
748 # ADD_ADDR from server to client machine using a new port
750 ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
751 $server_addr_id port $new4_port > /dev/null 2>&1
754 # CREATE_SUBFLOW from client to server machine
756 ip netns exec "$ns2" ./pm_nl_ctl csf lip 10.0.2.2 lid 23 rip 10.0.2.1 rport\
757 $new4_port token "$client4_token" > /dev/null 2>&1
759 verify_subflow_events "$evts" "$SUB_ESTABLISHED" "$client4_token" "$AF_INET"\
760 "10.0.2.2" "10.0.2.1" "$new4_port" "23" "$server_addr_id" "ns2" "ns1"
762 # Delete the listener from the server ns, if one was created
763 kill_wait $listener_pid
765 sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
767 # DESTROY_SUBFLOW from client to server machine
769 ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
770 $new4_port token "$client4_token" > /dev/null 2>&1
772 verify_subflow_events "$evts" "$SUB_CLOSED" "$client4_token" "$AF_INET" "10.0.2.2"\
773 "10.0.2.1" "$new4_port" "23" "$server_addr_id" "ns2" "ns1"
775 # RM_ADDR from server to client machine
776 ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
777 "$server4_token" > /dev/null 2>&1
783 test_subflows_v4_v6_mix()
786 client_evts=$(mktemp)
787 # Capture events on the network namespace running the client
789 ip netns exec "$ns2" ./pm_nl_ctl events >> "$client_evts" 2>&1 &
793 # Attempt to add a listener at 10.0.2.1:<subflow-port>
794 ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\
795 $app6_port > /dev/null 2>&1 &
796 local listener_pid=$!
798 # ADD_ADDR4 from server to client machine reusing the subflow port on
799 # the established v6 connection
801 ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server6_token" id\
802 $server_addr_id dev ns1eth2 > /dev/null 2>&1
803 stdbuf -o0 -e0 printf "ADD_ADDR4 id:%d 10.0.2.1 (ns1) => ns2, reuse port\t\t" $server_addr_id
805 verify_announce_event "$client_evts" "$ANNOUNCED" "$client6_token" "10.0.2.1"\
806 "$server_addr_id" "$app6_port"
808 # CREATE_SUBFLOW from client to server machine
810 ip netns exec "$ns2" ./pm_nl_ctl csf lip 10.0.2.2 lid 23 rip 10.0.2.1 rport\
811 $app6_port token "$client6_token" > /dev/null 2>&1
813 verify_subflow_events "$client_evts" "$SUB_ESTABLISHED" "$client6_token"\
814 "$AF_INET" "10.0.2.2" "10.0.2.1" "$app6_port" "23"\
815 "$server_addr_id" "ns2" "ns1"
817 # Delete the listener from the server ns, if one was created
818 kill_wait $listener_pid
820 sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$client_evts")
822 # DESTROY_SUBFLOW from client to server machine
824 ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
825 $app6_port token "$client6_token" > /dev/null 2>&1
827 verify_subflow_events "$client_evts" "$SUB_CLOSED" "$client6_token" \
828 "$AF_INET" "10.0.2.2" "10.0.2.1" "$app6_port" "23"\
829 "$server_addr_id" "ns2" "ns1"
831 # RM_ADDR from server to client machine
832 ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
833 "$server6_token" > /dev/null 2>&1
844 # Send MP_PRIO signal from client to server machine
845 ip netns exec "$ns2" ./pm_nl_ctl set 10.0.1.2 port "$client4_port" flags backup token "$client4_token" rip 10.0.1.1 rport "$server4_port"
849 stdbuf -o0 -e0 printf "MP_PRIO TX \t"
850 count=$(ip netns exec "$ns2" nstat -as | grep MPTcpExtMPPrioTx | awk '{print $2}')
851 [ -z "$count" ] && count=0
852 if [ $count != 1 ]; then
853 stdbuf -o0 -e0 printf "[FAIL]\n"
856 stdbuf -o0 -e0 printf "[OK]\n"
860 stdbuf -o0 -e0 printf "MP_PRIO RX \t"
861 count=$(ip netns exec "$ns1" nstat -as | grep MPTcpExtMPPrioRx | awk '{print $2}')
862 [ -z "$count" ] && count=0
863 if [ $count != 1 ]; then
864 stdbuf -o0 -e0 printf "[FAIL]\n"
867 stdbuf -o0 -e0 printf "[OK]\n"
876 test_subflows_v4_v6_mix