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, especially because there were too many before having
6 # address all other issues detected by shellcheck.
7 #shellcheck disable=SC2086
8
9 # ShellCheck incorrectly believes that most of the code here is unreachable
10 # because it's invoked by variable name, see how the "tests" array is used
11 #shellcheck disable=SC2317
12
13 . "$(dirname "${0}")/mptcp_lib.sh"
14
15 ret=0
16 sin=""
17 sinfail=""
18 sout=""
19 cin=""
20 cinfail=""
21 cinsent=""
22 tmpfile=""
23 cout=""
24 err=""
25 capout=""
26 cappid=""
27 ns1=""
28 ns2=""
29 iptables="iptables"
30 ip6tables="ip6tables"
31 timeout_poll=30
32 timeout_test=$((timeout_poll * 2 + 1))
33 capture=false
34 checksum=false
35 check_invert=0
36 validate_checksum=false
37 init=0
38 evts_ns1=""
39 evts_ns2=""
40 evts_ns1_pid=0
41 evts_ns2_pid=0
42 last_test_failed=0
43 last_test_skipped=0
44 last_test_ignored=1
45
46 declare -A all_tests
47 declare -a only_tests_ids
48 declare -a only_tests_names
49 declare -A failed_tests
50 MPTCP_LIB_TEST_FORMAT="%03u %s\n"
51 TEST_NAME=""
52 nr_blank=6
53
54 # These var are used only in some tests, make sure they are not already set
55 unset FAILING_LINKS
56 unset test_linkfail
57 unset addr_nr_ns1
58 unset addr_nr_ns2
59 unset cestab_ns1
60 unset cestab_ns2
61 unset sflags
62 unset fastclose
63 unset fullmesh
64 unset speed
65 unset join_csum_ns1
66 unset join_csum_ns2
67 unset join_fail_nr
68 unset join_rst_nr
69 unset join_infi_nr
70 unset join_corrupted_pkts
71 unset join_syn_tx
72 unset join_create_err
73 unset join_bind_err
74 unset join_connect_err
75
76 # generated using "nfbpf_compile '(ip && (ip[54] & 0xf0) == 0x30) ||
77 # (ip6 && (ip6[74] & 0xf0) == 0x30)'"
78 CBPF_MPTCP_SUBOPTION_ADD_ADDR="14,
79 48 0 0 0,
80 84 0 0 240,
81 21 0 3 64,
82 48 0 0 54,
83 84 0 0 240,
84 21 6 7 48,
85 48 0 0 0,
86 84 0 0 240,
87 21 0 4 96,
88 48 0 0 74,
89 84 0 0 240,
90 21 0 1 48,
91 6 0 0 65535,
92 6 0 0 0"
93
94 init_partial()
95 {
96 capout=$(mktemp)
97
98 mptcp_lib_ns_init ns1 ns2
99
100 local netns
101 for netns in "$ns1" "$ns2"; do
102 ip netns exec $netns sysctl -q net.mptcp.pm_type=0 2>/dev/null || true
103 if $checksum; then
104 ip netns exec $netns sysctl -q net.mptcp.checksum_enabled=1
105 fi
106 done
107
108 check_invert=0
109 validate_checksum=$checksum
110
111 # ns1 ns2
112 # ns1eth1 ns2eth1
113 # ns1eth2 ns2eth2
114 # ns1eth3 ns2eth3
115 # ns1eth4 ns2eth4
116
117 local i
118 for i in $(seq 1 4); do
119 ip link add ns1eth$i netns "$ns1" type veth peer name ns2eth$i netns "$ns2"
120 ip -net "$ns1" addr add 10.0.$i.1/24 dev ns1eth$i
121 ip -net "$ns1" addr add dead:beef:$i::1/64 dev ns1eth$i nodad
122 ip -net "$ns1" link set ns1eth$i up
123
124 ip -net "$ns2" addr add 10.0.$i.2/24 dev ns2eth$i
125 ip -net "$ns2" addr add dead:beef:$i::2/64 dev ns2eth$i nodad
126 ip -net "$ns2" link set ns2eth$i up
127
128 # let $ns2 reach any $ns1 address from any interface
129 ip -net "$ns2" route add default via 10.0.$i.1 dev ns2eth$i metric 10$i
130 ip -net "$ns2" route add default via dead:beef:$i::1 dev ns2eth$i metric 10$i
131 done
132 }
133
134 init_shapers()
135 {
136 local i
137 for i in $(seq 1 4); do
138 tc -n $ns1 qdisc add dev ns1eth$i root netem rate 20mbit delay 1ms
139 tc -n $ns2 qdisc add dev ns2eth$i root netem rate 20mbit delay 1ms
140 done
141 }
142
143 cleanup_partial()
144 {
145 rm -f "$capout"
146
147 mptcp_lib_ns_exit "${ns1}" "${ns2}"
148 }
149
150 init() {
151 init=1
152
153 mptcp_lib_check_mptcp
154 mptcp_lib_check_kallsyms
155 mptcp_lib_check_tools ip tc ss "${iptables}" "${ip6tables}"
156
157 sin=$(mktemp)
158 sout=$(mktemp)
159 cin=$(mktemp)
160 cinsent=$(mktemp)
161 cout=$(mktemp)
162 err=$(mktemp)
163 evts_ns1=$(mktemp)
164 evts_ns2=$(mktemp)
165
166 trap cleanup EXIT
167
168 make_file "$cin" "client" 1 >/dev/null
169 make_file "$sin" "server" 1 >/dev/null
170 }
171
172 cleanup()
173 {
174 rm -f "$cin" "$cout" "$sinfail"
175 rm -f "$sin" "$sout" "$cinsent" "$cinfail"
176 rm -f "$tmpfile"
177 rm -rf $evts_ns1 $evts_ns2
178 rm -f "$err"
179 cleanup_partial
180 }
181
182 print_check()
183 {
184 printf "%-${nr_blank}s%-36s" " " "${*}"
185 }
186
187 print_info()
188 {
189 # It can be empty, no need to print anything then
190 [ -z "${1}" ] && return
191
192 mptcp_lib_print_info " Info: ${*}"
193 }
194
195 print_ok()
196 {
197 mptcp_lib_pr_ok "${@}"
198 }
199
200 print_fail()
201 {
202 mptcp_lib_pr_fail "${@}"
203 }
204
205 print_skip()
206 {
207 mptcp_lib_pr_skip "${@}"
208 }
209
210 # $1: check name; $2: rc
211 print_results()
212 {
213 local check="${1}"
214 local rc=${2}
215
216 print_check "${check}"
217 if [ ${rc} = ${KSFT_PASS} ]; then
218 print_ok
219 elif [ ${rc} = ${KSFT_SKIP} ]; then
220 print_skip
221 else
222 fail_test "see above"
223 fi
224 }
225
226 # [ $1: fail msg ]
227 mark_as_skipped()
228 {
229 local msg="${1:-"Feature not supported"}"
230
231 mptcp_lib_fail_if_expected_feature "${msg}"
232
233 print_check "${msg}"
234 print_skip
235
236 last_test_skipped=1
237 }
238
239 # $@: condition
240 continue_if()
241 {
242 if ! "${@}"; then
243 mark_as_skipped
244 return 1
245 fi
246 }
247
248 skip_test()
249 {
250 if [ "${#only_tests_ids[@]}" -eq 0 ] && [ "${#only_tests_names[@]}" -eq 0 ]; then
251 return 1
252 fi
253
254 local i
255 for i in "${only_tests_ids[@]}"; do
256 if [ "$((MPTCP_LIB_TEST_COUNTER+1))" -eq "${i}" ]; then
257 return 1
258 fi
259 done
260 for i in "${only_tests_names[@]}"; do
261 if [ "${TEST_NAME}" = "${i}" ]; then
262 return 1
263 fi
264 done
265
266 return 0
267 }
268
269 append_prev_results()
270 {
271 if [ ${last_test_failed} -eq 1 ]; then
272 mptcp_lib_result_fail "${TEST_NAME}"
273 elif [ ${last_test_skipped} -eq 1 ]; then
274 mptcp_lib_result_skip "${TEST_NAME}"
275 elif [ ${last_test_ignored} -ne 1 ]; then
276 mptcp_lib_result_pass "${TEST_NAME}"
277 fi
278
279 last_test_failed=0
280 last_test_skipped=0
281 last_test_ignored=0
282 }
283
284 # $1: test name
285 reset()
286 {
287 append_prev_results
288
289 TEST_NAME="${1}"
290
291 MPTCP_LIB_SUBTEST_FLAKY=0 # reset if modified
292
293 if skip_test; then
294 MPTCP_LIB_TEST_COUNTER=$((MPTCP_LIB_TEST_COUNTER+1))
295 last_test_ignored=1
296 return 1
297 fi
298
299 mptcp_lib_print_title "${TEST_NAME}"
300
301 if [ "${init}" != "1" ]; then
302 init
303 else
304 cleanup_partial
305 fi
306
307 init_partial
308
309 return 0
310 }
311
312 # $1: test name ; $2: counter to check
313 reset_check_counter()
314 {
315 reset "${1}" || return 1
316
317 local counter="${2}"
318
319 if ! nstat -asz "${counter}" | grep -wq "${counter}"; then
320 mark_as_skipped "counter '${counter}' is not available"
321 return 1
322 fi
323 }
324
325 # $1: test name
326 reset_with_cookies()
327 {
328 reset "${1}" || return 1
329
330 local netns
331 for netns in "$ns1" "$ns2"; do
332 ip netns exec $netns sysctl -q net.ipv4.tcp_syncookies=2
333 done
334 }
335
336 # $1: test name
337 reset_with_add_addr_timeout()
338 {
339 local ip="${2:-4}"
340 local tables
341
342 reset "${1}" || return 1
343
344 tables="${iptables}"
345 if [ $ip -eq 6 ]; then
346 tables="${ip6tables}"
347 fi
348
349 ip netns exec $ns1 sysctl -q net.mptcp.add_addr_timeout=1
350
351 if ! ip netns exec $ns2 $tables -A OUTPUT -p tcp \
352 -m tcp --tcp-option 30 \
353 -m bpf --bytecode \
354 "$CBPF_MPTCP_SUBOPTION_ADD_ADDR" \
355 -j DROP; then
356 mark_as_skipped "unable to set the 'add addr' rule"
357 return 1
358 fi
359 }
360
361 # $1: test name
362 reset_with_checksum()
363 {
364 local ns1_enable=$1
365 local ns2_enable=$2
366
367 reset "checksum test ${ns1_enable} ${ns2_enable}" || return 1
368
369 ip netns exec $ns1 sysctl -q net.mptcp.checksum_enabled=$ns1_enable
370 ip netns exec $ns2 sysctl -q net.mptcp.checksum_enabled=$ns2_enable
371
372 validate_checksum=true
373 }
374
375 reset_with_allow_join_id0()
376 {
377 local ns1_enable=$2
378 local ns2_enable=$3
379
380 reset "${1}" || return 1
381
382 ip netns exec $ns1 sysctl -q net.mptcp.allow_join_initial_addr_port=$ns1_enable
383 ip netns exec $ns2 sysctl -q net.mptcp.allow_join_initial_addr_port=$ns2_enable
384 }
385
386 # Modify TCP payload without corrupting the TCP packet
387 #
388 # This rule inverts a 8-bit word at byte offset 148 for the 2nd TCP ACK packets
389 # carrying enough data.
390 # Once it is done, the TCP Checksum field is updated so the packet is still
391 # considered as valid at the TCP level.
392 # Because the MPTCP checksum, covering the TCP options and data, has not been
393 # updated, the modification will be detected and an MP_FAIL will be emitted:
394 # what we want to validate here without corrupting "random" MPTCP options.
395 #
396 # To avoid having tc producing this pr_info() message for each TCP ACK packets
397 # not carrying enough data:
398 #
399 # tc action pedit offset 162 out of bounds
400 #
401 # Netfilter is used to mark packets with enough data.
402 setup_fail_rules()
403 {
404 check_invert=1
405 validate_checksum=true
406 local i="$1"
407 local ip="${2:-4}"
408 local tables
409
410 tables="${iptables}"
411 if [ $ip -eq 6 ]; then
412 tables="${ip6tables}"
413 fi
414
415 ip netns exec $ns2 $tables \
416 -t mangle \
417 -A OUTPUT \
418 -o ns2eth$i \
419 -p tcp \
420 -m length --length 150:9999 \
421 -m statistic --mode nth --packet 1 --every 99999 \
422 -j MARK --set-mark 42 || return ${KSFT_SKIP}
423
424 tc -n $ns2 qdisc add dev ns2eth$i clsact || return ${KSFT_SKIP}
425 tc -n $ns2 filter add dev ns2eth$i egress \
426 protocol ip prio 1000 \
427 handle 42 fw \
428 action pedit munge offset 148 u8 invert \
429 pipe csum tcp \
430 index 100 || return ${KSFT_SKIP}
431 }
432
433 reset_with_fail()
434 {
435 reset_check_counter "${1}" "MPTcpExtInfiniteMapTx" || return 1
436 shift
437
438 ip netns exec $ns1 sysctl -q net.mptcp.checksum_enabled=1
439 ip netns exec $ns2 sysctl -q net.mptcp.checksum_enabled=1
440
441 local rc=0
442 setup_fail_rules "${@}" || rc=$?
443
444 if [ ${rc} -eq ${KSFT_SKIP} ]; then
445 mark_as_skipped "unable to set the 'fail' rules"
446 return 1
447 fi
448 }
449
450 start_events()
451 {
452 mptcp_lib_events "${ns1}" "${evts_ns1}" evts_ns1_pid
453 mptcp_lib_events "${ns2}" "${evts_ns2}" evts_ns2_pid
454 }
455
456 reset_with_events()
457 {
458 reset "${1}" || return 1
459
460 start_events
461 }
462
463 reset_with_tcp_filter()
464 {
465 reset "${1}" || return 1
466 shift
467
468 local ns="${!1}"
469 local src="${2}"
470 local target="${3}"
471 local chain="${4:-INPUT}"
472
473 if ! ip netns exec "${ns}" ${iptables} \
474 -A "${chain}" \
475 -s "${src}" \
476 -p tcp \
477 -j "${target}"; then
478 mark_as_skipped "unable to set the filter rules"
479 return 1
480 fi
481 }
482
483 # $1: err msg
484 fail_test()
485 {
486 if ! mptcp_lib_subtest_is_flaky; then
487 ret=${KSFT_FAIL}
488 fi
489
490 if [ ${#} -gt 0 ]; then
491 print_fail "${@}"
492 fi
493
494 # just in case a test is marked twice as failed
495 if [ ${last_test_failed} -eq 0 ]; then
496 failed_tests[${MPTCP_LIB_TEST_COUNTER}]="${TEST_NAME}"
497 dump_stats
498 last_test_failed=1
499 fi
500 }
501
502 get_failed_tests_ids()
503 {
504 # sorted
505 local i
506 for i in "${!failed_tests[@]}"; do
507 echo "${i}"
508 done | sort -n
509 }
510
511 check_transfer()
512 {
513 local in=$1
514 local out=$2
515 local what=$3
516 local bytes=$4
517 local i a b
518
519 local line
520 if [ -n "$bytes" ]; then
521 local out_size
522 # when truncating we must check the size explicitly
523 out_size=$(wc -c $out | awk '{print $1}')
524 if [ $out_size -ne $bytes ]; then
525 fail_test "$what output file has wrong size ($out_size, $bytes)"
526 return 1
527 fi
528
529 # note: BusyBox's "cmp" command doesn't support --bytes
530 tmpfile=$(mktemp)
531 head --bytes="$bytes" "$in" > "$tmpfile"
532 mv "$tmpfile" "$in"
533 head --bytes="$bytes" "$out" > "$tmpfile"
534 mv "$tmpfile" "$out"
535 tmpfile=""
536 fi
537 cmp -l "$in" "$out" | while read -r i a b; do
538 local sum=$((0${a} + 0${b}))
539 if [ $check_invert -eq 0 ] || [ $sum -ne $((0xff)) ]; then
540 fail_test "$what does not match (in, out):"
541 mptcp_lib_print_file_err "$in"
542 mptcp_lib_print_file_err "$out"
543
544 return 1
545 else
546 print_info "$what has inverted byte at ${i}"
547 fi
548 done
549
550 return 0
551 }
552
553 do_ping()
554 {
555 local listener_ns="$1"
556 local connector_ns="$2"
557 local connect_addr="$3"
558
559 if ! ip netns exec ${connector_ns} ping -q -c 1 $connect_addr >/dev/null; then
560 fail_test "$listener_ns -> $connect_addr connectivity"
561 fi
562 }
563
564 link_failure()
565 {
566 local ns="$1"
567
568 if [ -z "$FAILING_LINKS" ]; then
569 l=$((RANDOM%4))
570 FAILING_LINKS=$((l+1))
571 fi
572
573 local l
574 for l in $FAILING_LINKS; do
575 local veth="ns1eth$l"
576 ip -net "$ns" link set "$veth" down
577 done
578 }
579
580 rm_addr_count()
581 {
582 mptcp_lib_get_counter "${1}" "MPTcpExtRmAddr"
583 }
584
585 # $1: ns, $2: old rm_addr counter in $ns
586 wait_rm_addr()
587 {
588 local ns="${1}"
589 local old_cnt="${2}"
590 local cnt
591
592 local i
593 for i in $(seq 10); do
594 cnt=$(rm_addr_count ${ns})
595 [ "$cnt" = "${old_cnt}" ] || break
596 sleep 0.1
597 done
598 }
599
600 rm_sf_count()
601 {
602 mptcp_lib_get_counter "${1}" "MPTcpExtRmSubflow"
603 }
604
605 # $1: ns, $2: old rm_sf counter in $ns
606 wait_rm_sf()
607 {
608 local ns="${1}"
609 local old_cnt="${2}"
610 local cnt
611
612 local i
613 for i in $(seq 10); do
614 cnt=$(rm_sf_count ${ns})
615 [ "$cnt" = "${old_cnt}" ] || break
616 sleep 0.1
617 done
618 }
619
620 wait_mpj()
621 {
622 local ns="${1}"
623 local cnt old_cnt
624
625 old_cnt=$(mptcp_lib_get_counter ${ns} "MPTcpExtMPJoinAckRx")
626
627 local i
628 for i in $(seq 10); do
629 cnt=$(mptcp_lib_get_counter ${ns} "MPTcpExtMPJoinAckRx")
630 [ "$cnt" = "${old_cnt}" ] || break
631 sleep 0.1
632 done
633 }
634
635 kill_events_pids()
636 {
637 mptcp_lib_kill_wait $evts_ns1_pid
638 evts_ns1_pid=0
639 mptcp_lib_kill_wait $evts_ns2_pid
640 evts_ns2_pid=0
641 }
642
643 pm_nl_set_limits()
644 {
645 mptcp_lib_pm_nl_set_limits "${@}"
646 }
647
648 pm_nl_add_endpoint()
649 {
650 mptcp_lib_pm_nl_add_endpoint "${@}"
651 }
652
653 pm_nl_del_endpoint()
654 {
655 mptcp_lib_pm_nl_del_endpoint "${@}"
656 }
657
658 pm_nl_flush_endpoint()
659 {
660 mptcp_lib_pm_nl_flush_endpoint "${@}"
661 }
662
663 pm_nl_show_endpoints()
664 {
665 mptcp_lib_pm_nl_show_endpoints "${@}"
666 }
667
668 pm_nl_change_endpoint()
669 {
670 mptcp_lib_pm_nl_change_endpoint "${@}"
671 }
672
673 pm_nl_check_endpoint()
674 {
675 local msg="$1"
676 local ns=$2
677 local addr=$3
678 local flags dev id port
679
680 print_check "${msg}"
681
682 shift 3
683 while [ -n "$1" ]; do
684 case "${1}" in
685 "flags" | "dev" | "id" | "port")
686 eval "${1}"="${2}"
687 shift
688 ;;
689 *)
690 ;;
691 esac
692
693 shift
694 done
695
696 if [ -z "${id}" ]; then
697 fail_test "bad test - missing endpoint id"
698 return
699 fi
700
701 check_output "mptcp_lib_pm_nl_get_endpoint ${ns} ${id}" \
702 "$(mptcp_lib_pm_nl_format_endpoints \
703 "${id},${addr},${flags//","/" "},${dev},${port}")"
704 }
705
706 pm_nl_set_endpoint()
707 {
708 local listener_ns="$1"
709 local connector_ns="$2"
710 local connect_addr="$3"
711
712 local addr_nr_ns1=${addr_nr_ns1:-0}
713 local addr_nr_ns2=${addr_nr_ns2:-0}
714 local sflags=${sflags:-""}
715 local fullmesh=${fullmesh:-""}
716
717 local flags="subflow"
718 if [ -n "${fullmesh}" ]; then
719 flags="${flags},fullmesh"
720 addr_nr_ns2=${fullmesh}
721 fi
722
723 # let the mptcp subflow be established in background before
724 # do endpoint manipulation
725 if [ $addr_nr_ns1 != "0" ] || [ $addr_nr_ns2 != "0" ]; then
726 sleep 1
727 fi
728
729 if [ $addr_nr_ns1 -gt 0 ]; then
730 local counter=2
731 local add_nr_ns1=${addr_nr_ns1}
732 local id=10
733 while [ $add_nr_ns1 -gt 0 ]; do
734 local addr
735 if mptcp_lib_is_v6 "${connect_addr}"; then
736 addr="dead:beef:$counter::1"
737 else
738 addr="10.0.$counter.1"
739 fi
740 pm_nl_add_endpoint $ns1 $addr flags signal
741 counter=$((counter + 1))
742 add_nr_ns1=$((add_nr_ns1 - 1))
743 id=$((id + 1))
744 done
745 elif [ $addr_nr_ns1 -lt 0 ]; then
746 local rm_nr_ns1=$((-addr_nr_ns1))
747 if [ $rm_nr_ns1 -lt 8 ]; then
748 local counter=0
749 local line
750 pm_nl_show_endpoints ${listener_ns} | while read -r line; do
751 # shellcheck disable=SC2206 # we do want to split per word
752 local arr=($line)
753 local nr=0
754
755 local i
756 for i in "${arr[@]}"; do
757 if [ $i = "id" ]; then
758 if [ $counter -eq $rm_nr_ns1 ]; then
759 break
760 fi
761 id=${arr[$nr+1]}
762 rm_addr=$(rm_addr_count ${connector_ns})
763 pm_nl_del_endpoint ${listener_ns} $id
764 wait_rm_addr ${connector_ns} ${rm_addr}
765 counter=$((counter + 1))
766 fi
767 nr=$((nr + 1))
768 done
769 done
770 elif [ $rm_nr_ns1 -eq 8 ]; then
771 pm_nl_flush_endpoint ${listener_ns}
772 elif [ $rm_nr_ns1 -eq 9 ]; then
773 pm_nl_del_endpoint ${listener_ns} 0 ${connect_addr}
774 fi
775 fi
776
777 # if newly added endpoints must be deleted, give the background msk
778 # some time to created them
779 [ $addr_nr_ns1 -gt 0 ] && [ $addr_nr_ns2 -lt 0 ] && sleep 1
780
781 if [ $addr_nr_ns2 -gt 0 ]; then
782 local add_nr_ns2=${addr_nr_ns2}
783 local counter=3
784 local id=20
785 while [ $add_nr_ns2 -gt 0 ]; do
786 local addr
787 if mptcp_lib_is_v6 "${connect_addr}"; then
788 addr="dead:beef:$counter::2"
789 else
790 addr="10.0.$counter.2"
791 fi
792 pm_nl_add_endpoint $ns2 $addr flags $flags
793 counter=$((counter + 1))
794 add_nr_ns2=$((add_nr_ns2 - 1))
795 id=$((id + 1))
796 done
797 elif [ $addr_nr_ns2 -lt 0 ]; then
798 local rm_nr_ns2=$((-addr_nr_ns2))
799 if [ $rm_nr_ns2 -lt 8 ]; then
800 local counter=0
801 local line
802 pm_nl_show_endpoints ${connector_ns} | while read -r line; do
803 # shellcheck disable=SC2206 # we do want to split per word
804 local arr=($line)
805 local nr=0
806
807 local i
808 for i in "${arr[@]}"; do
809 if [ $i = "id" ]; then
810 if [ $counter -eq $rm_nr_ns2 ]; then
811 break
812 fi
813 local id rm_addr
814 # rm_addr are serialized, allow the previous one to
815 # complete
816 id=${arr[$nr+1]}
817 rm_addr=$(rm_addr_count ${listener_ns})
818 pm_nl_del_endpoint ${connector_ns} $id
819 wait_rm_addr ${listener_ns} ${rm_addr}
820 counter=$((counter + 1))
821 fi
822 nr=$((nr + 1))
823 done
824 done
825 elif [ $rm_nr_ns2 -eq 8 ]; then
826 pm_nl_flush_endpoint ${connector_ns}
827 elif [ $rm_nr_ns2 -eq 9 ]; then
828 local addr
829 if mptcp_lib_is_v6 "${connect_addr}"; then
830 addr="dead:beef:1::2"
831 else
832 addr="10.0.1.2"
833 fi
834 pm_nl_del_endpoint ${connector_ns} 0 $addr
835 fi
836 fi
837
838 if [ -n "${sflags}" ]; then
839 sleep 1
840
841 local netns
842 for netns in "$ns1" "$ns2"; do
843 local line
844 pm_nl_show_endpoints $netns | while read -r line; do
845 # shellcheck disable=SC2206 # we do want to split per word
846 local arr=($line)
847 local nr=0
848 local id
849
850 local i
851 for i in "${arr[@]}"; do
852 if [ $i = "id" ]; then
853 id=${arr[$nr+1]}
854 fi
855 nr=$((nr + 1))
856 done
857 pm_nl_change_endpoint $netns $id $sflags
858 done
859 done
860 fi
861 }
862
863 chk_cestab_nr()
864 {
865 local ns=$1
866 local cestab=$2
867 local count
868
869 print_check "currently established: $cestab"
870 count=$(mptcp_lib_get_counter ${ns} "MPTcpExtMPCurrEstab")
871 if [ -z "$count" ]; then
872 print_skip
873 elif [ "$count" != "$cestab" ]; then
874 fail_test "got $count current establish[s] expected $cestab"
875 else
876 print_ok
877 fi
878 }
879
880 # $1 namespace 1, $2 namespace 2
881 check_cestab()
882 {
883 if [ -n "${cestab_ns1}" ]; then
884 chk_cestab_nr ${1} ${cestab_ns1}
885 fi
886 if [ -n "${cestab_ns2}" ]; then
887 chk_cestab_nr ${2} ${cestab_ns2}
888 fi
889 }
890
891 cond_start_capture()
892 {
893 local ns="$1"
894
895 :> "$capout"
896
897 if $capture; then
898 local capuser capfile
899 if [ -z $SUDO_USER ]; then
900 capuser=""
901 else
902 capuser="-Z $SUDO_USER"
903 fi
904
905 capfile=$(printf "mp_join-%02u-%s.pcap" "$MPTCP_LIB_TEST_COUNTER" "$ns")
906
907 echo "Capturing traffic for test $MPTCP_LIB_TEST_COUNTER into $capfile"
908 ip netns exec "$ns" tcpdump -i any -s 65535 -B 32768 $capuser -w "$capfile" > "$capout" 2>&1 &
909 cappid=$!
910
911 sleep 1
912 fi
913 }
914
915 cond_stop_capture()
916 {
917 if $capture; then
918 sleep 1
919 kill $cappid
920 cat "$capout"
921 fi
922 }
923
924 get_port()
925 {
926 echo "$((10000 + MPTCP_LIB_TEST_COUNTER - 1))"
927 }
928
929 do_transfer()
930 {
931 local listener_ns="$1"
932 local connector_ns="$2"
933 local cl_proto="$3"
934 local srv_proto="$4"
935 local connect_addr="$5"
936 local port
937
938 local FAILING_LINKS=${FAILING_LINKS:-""}
939 local fastclose=${fastclose:-""}
940 local speed=${speed:-"fast"}
941 port=$(get_port)
942
943 :> "$cout"
944 :> "$sout"
945
946 cond_start_capture ${listener_ns}
947
948 NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \
949 nstat -n
950 NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \
951 nstat -n
952
953 local extra_args
954 if [ $speed = "fast" ]; then
955 extra_args="-j"
956 elif [ $speed = "slow" ]; then
957 extra_args="-r 50"
958 elif [ $speed -gt 0 ]; then
959 extra_args="-r ${speed}"
960 fi
961
962 local extra_cl_args=""
963 local extra_srv_args=""
964 local trunc_size=""
965 if [ -n "${fastclose}" ]; then
966 if [ ${test_linkfail} -le 1 ]; then
967 fail_test "fastclose tests need test_linkfail argument"
968 return 1
969 fi
970
971 # disconnect
972 trunc_size=${test_linkfail}
973 local side=${fastclose}
974
975 if [ ${side} = "client" ]; then
976 extra_cl_args="-f ${test_linkfail}"
977 extra_srv_args="-f -1"
978 elif [ ${side} = "server" ]; then
979 extra_srv_args="-f ${test_linkfail}"
980 extra_cl_args="-f -1"
981 else
982 fail_test "wrong/unknown fastclose spec ${side}"
983 return 1
984 fi
985 fi
986
987 extra_srv_args="$extra_args $extra_srv_args"
988 if [ "$test_linkfail" -gt 1 ];then
989 timeout ${timeout_test} \
990 ip netns exec ${listener_ns} \
991 ./mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \
992 $extra_srv_args "::" < "$sinfail" > "$sout" &
993 else
994 timeout ${timeout_test} \
995 ip netns exec ${listener_ns} \
996 ./mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \
997 $extra_srv_args "::" < "$sin" > "$sout" &
998 fi
999 local spid=$!
1000
1001 mptcp_lib_wait_local_port_listen "${listener_ns}" "${port}"
1002
1003 extra_cl_args="$extra_args $extra_cl_args"
1004 if [ "$test_linkfail" -eq 0 ];then
1005 timeout ${timeout_test} \
1006 ip netns exec ${connector_ns} \
1007 ./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
1008 $extra_cl_args $connect_addr < "$cin" > "$cout" &
1009 elif [ "$test_linkfail" -eq 1 ] || [ "$test_linkfail" -eq 2 ];then
1010 ( cat "$cinfail" ; sleep 2; link_failure $listener_ns ; cat "$cinfail" ) | \
1011 tee "$cinsent" | \
1012 timeout ${timeout_test} \
1013 ip netns exec ${connector_ns} \
1014 ./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
1015 $extra_cl_args $connect_addr > "$cout" &
1016 else
1017 tee "$cinsent" < "$cinfail" | \
1018 timeout ${timeout_test} \
1019 ip netns exec ${connector_ns} \
1020 ./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
1021 $extra_cl_args $connect_addr > "$cout" &
1022 fi
1023 local cpid=$!
1024
1025 pm_nl_set_endpoint $listener_ns $connector_ns $connect_addr
1026 check_cestab $listener_ns $connector_ns
1027
1028 wait $cpid
1029 local retc=$?
1030 wait $spid
1031 local rets=$?
1032
1033 cond_stop_capture
1034
1035 NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \
1036 nstat | grep Tcp > /tmp/${listener_ns}.out
1037 NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \
1038 nstat | grep Tcp > /tmp/${connector_ns}.out
1039
1040 if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
1041 fail_test "client exit code $retc, server $rets"
1042 echo -e "\nnetns ${listener_ns} socket stat for ${port}:" 1>&2
1043 ip netns exec ${listener_ns} ss -Menita 1>&2 -o "sport = :$port"
1044 cat /tmp/${listener_ns}.out
1045 echo -e "\nnetns ${connector_ns} socket stat for ${port}:" 1>&2
1046 ip netns exec ${connector_ns} ss -Menita 1>&2 -o "dport = :$port"
1047 cat /tmp/${connector_ns}.out
1048
1049 return 1
1050 fi
1051
1052 if [ "$test_linkfail" -gt 1 ];then
1053 check_transfer $sinfail $cout "file received by client" $trunc_size
1054 else
1055 check_transfer $sin $cout "file received by client" $trunc_size
1056 fi
1057 retc=$?
1058 if [ "$test_linkfail" -eq 0 ];then
1059 check_transfer $cin $sout "file received by server" $trunc_size
1060 else
1061 check_transfer $cinsent $sout "file received by server" $trunc_size
1062 fi
1063 rets=$?
1064
1065 [ $retc -eq 0 ] && [ $rets -eq 0 ]
1066 }
1067
1068 make_file()
1069 {
1070 local name=$1
1071 local who=$2
1072 local size=$3
1073
1074 mptcp_lib_make_file $name 1024 $size
1075
1076 print_info "Test file (size $size KB) for $who"
1077 }
1078
1079 run_tests()
1080 {
1081 local listener_ns="$1"
1082 local connector_ns="$2"
1083 local connect_addr="$3"
1084
1085 local size
1086 local test_linkfail=${test_linkfail:-0}
1087
1088 # The values above 2 are reused to make test files
1089 # with the given sizes (KB)
1090 if [ "$test_linkfail" -gt 2 ]; then
1091 size=$test_linkfail
1092
1093 if [ -z "$cinfail" ]; then
1094 cinfail=$(mktemp)
1095 fi
1096 make_file "$cinfail" "client" $size
1097 # create the input file for the failure test when
1098 # the first failure test run
1099 elif [ "$test_linkfail" -ne 0 ] && [ -z "$cinfail" ]; then
1100 # the client file must be considerably larger
1101 # of the maximum expected cwin value, or the
1102 # link utilization will be not predicable
1103 size=$((RANDOM%2))
1104 size=$((size+1))
1105 size=$((size*8192))
1106 size=$((size + ( RANDOM % 8192) ))
1107
1108 cinfail=$(mktemp)
1109 make_file "$cinfail" "client" $size
1110 fi
1111
1112 if [ "$test_linkfail" -gt 2 ]; then
1113 size=$test_linkfail
1114
1115 if [ -z "$sinfail" ]; then
1116 sinfail=$(mktemp)
1117 fi
1118 make_file "$sinfail" "server" $size
1119 elif [ "$test_linkfail" -eq 2 ] && [ -z "$sinfail" ]; then
1120 size=$((RANDOM%16))
1121 size=$((size+1))
1122 size=$((size*2048))
1123
1124 sinfail=$(mktemp)
1125 make_file "$sinfail" "server" $size
1126 fi
1127
1128 do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP ${connect_addr}
1129 }
1130
1131 dump_stats()
1132 {
1133 echo Server ns stats
1134 ip netns exec $ns1 nstat -as | grep Tcp
1135 echo Client ns stats
1136 ip netns exec $ns2 nstat -as | grep Tcp
1137 }
1138
1139 chk_csum_nr()
1140 {
1141 local csum_ns1=${1:-0}
1142 local csum_ns2=${2:-0}
1143 local count
1144 local extra_msg=""
1145 local allow_multi_errors_ns1=0
1146 local allow_multi_errors_ns2=0
1147
1148 if [[ "${csum_ns1}" = "+"* ]]; then
1149 allow_multi_errors_ns1=1
1150 csum_ns1=${csum_ns1:1}
1151 fi
1152 if [[ "${csum_ns2}" = "+"* ]]; then
1153 allow_multi_errors_ns2=1
1154 csum_ns2=${csum_ns2:1}
1155 fi
1156
1157 print_check "checksum server"
1158 count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtDataCsumErr")
1159 if [ -n "$count" ] && [ "$count" != "$csum_ns1" ]; then
1160 extra_msg+=" ns1=$count"
1161 fi
1162 if [ -z "$count" ]; then
1163 print_skip
1164 elif { [ "$count" != $csum_ns1 ] && [ $allow_multi_errors_ns1 -eq 0 ]; } ||
1165 { [ "$count" -lt $csum_ns1 ] && [ $allow_multi_errors_ns1 -eq 1 ]; }; then
1166 fail_test "got $count data checksum error[s] expected $csum_ns1"
1167 else
1168 print_ok
1169 fi
1170
1171 print_check "checksum client"
1172 count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtDataCsumErr")
1173 if [ -n "$count" ] && [ "$count" != "$csum_ns2" ]; then
1174 extra_msg+=" ns2=$count"
1175 fi
1176 if [ -z "$count" ]; then
1177 print_skip
1178 elif { [ "$count" != $csum_ns2 ] && [ $allow_multi_errors_ns2 -eq 0 ]; } ||
1179 { [ "$count" -lt $csum_ns2 ] && [ $allow_multi_errors_ns2 -eq 1 ]; }; then
1180 fail_test "got $count data checksum error[s] expected $csum_ns2"
1181 else
1182 print_ok
1183 fi
1184
1185 print_info "$extra_msg"
1186 }
1187
1188 chk_fail_nr()
1189 {
1190 local fail_tx=$1
1191 local fail_rx=$2
1192 local ns_invert=${3:-""}
1193 local count
1194 local ns_tx=$ns1
1195 local ns_rx=$ns2
1196 local tx="server"
1197 local rx="client"
1198 local extra_msg=""
1199 local allow_tx_lost=0
1200 local allow_rx_lost=0
1201
1202 if [[ $ns_invert = "invert" ]]; then
1203 ns_tx=$ns2
1204 ns_rx=$ns1
1205 tx="client"
1206 rx="server"
1207 fi
1208
1209 if [[ "${fail_tx}" = "-"* ]]; then
1210 allow_tx_lost=1
1211 fail_tx=${fail_tx:1}
1212 fi
1213 if [[ "${fail_rx}" = "-"* ]]; then
1214 allow_rx_lost=1
1215 fail_rx=${fail_rx:1}
1216 fi
1217
1218 print_check "fail tx ${tx}"
1219 count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMPFailTx")
1220 if [ -n "$count" ] && [ "$count" != "$fail_tx" ]; then
1221 extra_msg+=" tx=$count"
1222 fi
1223 if [ -z "$count" ]; then
1224 print_skip
1225 elif { [ "$count" != "$fail_tx" ] && [ $allow_tx_lost -eq 0 ]; } ||
1226 { [ "$count" -gt "$fail_tx" ] && [ $allow_tx_lost -eq 1 ]; }; then
1227 fail_test "got $count MP_FAIL[s] TX expected $fail_tx"
1228 else
1229 print_ok
1230 fi
1231
1232 print_check "fail rx ${rx}"
1233 count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtMPFailRx")
1234 if [ -n "$count" ] && [ "$count" != "$fail_rx" ]; then
1235 extra_msg+=" rx=$count"
1236 fi
1237 if [ -z "$count" ]; then
1238 print_skip
1239 elif { [ "$count" != "$fail_rx" ] && [ $allow_rx_lost -eq 0 ]; } ||
1240 { [ "$count" -gt "$fail_rx" ] && [ $allow_rx_lost -eq 1 ]; }; then
1241 fail_test "got $count MP_FAIL[s] RX expected $fail_rx"
1242 else
1243 print_ok
1244 fi
1245
1246 print_info "$extra_msg"
1247 }
1248
1249 chk_fclose_nr()
1250 {
1251 local fclose_tx=$1
1252 local fclose_rx=$2
1253 local ns_invert=$3
1254 local count
1255 local ns_tx=$ns2
1256 local ns_rx=$ns1
1257 local tx="client"
1258 local rx="server"
1259
1260 if [[ $ns_invert = "invert" ]]; then
1261 ns_tx=$ns1
1262 ns_rx=$ns2
1263 tx="server"
1264 rx="client"
1265 fi
1266
1267 print_check "fast close tx ${tx}"
1268 count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMPFastcloseTx")
1269 if [ -z "$count" ]; then
1270 print_skip
1271 elif [ "$count" != "$fclose_tx" ]; then
1272 fail_test "got $count MP_FASTCLOSE[s] TX expected $fclose_tx"
1273 else
1274 print_ok
1275 fi
1276
1277 print_check "fast close rx ${rx}"
1278 count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtMPFastcloseRx")
1279 if [ -z "$count" ]; then
1280 print_skip
1281 elif [ "$count" != "$fclose_rx" ]; then
1282 fail_test "got $count MP_FASTCLOSE[s] RX expected $fclose_rx"
1283 else
1284 print_ok
1285 fi
1286 }
1287
1288 chk_rst_nr()
1289 {
1290 local rst_tx=$1
1291 local rst_rx=$2
1292 local ns_invert=${3:-""}
1293 local count
1294 local ns_tx=$ns1
1295 local ns_rx=$ns2
1296 local tx="server"
1297 local rx="client"
1298
1299 if [[ $ns_invert = "invert" ]]; then
1300 ns_tx=$ns2
1301 ns_rx=$ns1
1302 tx="client"
1303 rx="server"
1304 fi
1305
1306 print_check "reset tx ${tx}"
1307 count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMPRstTx")
1308 if [ -z "$count" ]; then
1309 print_skip
1310 # accept more rst than expected except if we don't expect any
1311 elif { [ $rst_tx -ne 0 ] && [ $count -lt $rst_tx ]; } ||
1312 { [ $rst_tx -eq 0 ] && [ $count -ne 0 ]; }; then
1313 fail_test "got $count MP_RST[s] TX expected $rst_tx"
1314 else
1315 print_ok
1316 fi
1317
1318 print_check "reset rx ${rx}"
1319 count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtMPRstRx")
1320 if [ -z "$count" ]; then
1321 print_skip
1322 # accept more rst than expected except if we don't expect any
1323 elif { [ $rst_rx -ne 0 ] && [ $count -lt $rst_rx ]; } ||
1324 { [ $rst_rx -eq 0 ] && [ $count -ne 0 ]; }; then
1325 fail_test "got $count MP_RST[s] RX expected $rst_rx"
1326 else
1327 print_ok
1328 fi
1329 }
1330
1331 chk_infi_nr()
1332 {
1333 local infi_tx=$1
1334 local infi_rx=$2
1335 local count
1336
1337 print_check "infi tx client"
1338 count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtInfiniteMapTx")
1339 if [ -z "$count" ]; then
1340 print_skip
1341 elif [ "$count" != "$infi_tx" ]; then
1342 fail_test "got $count infinite map[s] TX expected $infi_tx"
1343 else
1344 print_ok
1345 fi
1346
1347 print_check "infi rx server"
1348 count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtInfiniteMapRx")
1349 if [ -z "$count" ]; then
1350 print_skip
1351 elif [ "$count" != "$infi_rx" ]; then
1352 fail_test "got $count infinite map[s] RX expected $infi_rx"
1353 else
1354 print_ok
1355 fi
1356 }
1357
1358 chk_join_tx_nr()
1359 {
1360 local syn_tx=${join_syn_tx:-0}
1361 local create=${join_create_err:-0}
1362 local bind=${join_bind_err:-0}
1363 local connect=${join_connect_err:-0}
1364 local rc=${KSFT_PASS}
1365 local count
1366
1367 count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynTx")
1368 if [ -z "$count" ]; then
1369 rc=${KSFT_SKIP}
1370 elif [ "$count" != "$syn_tx" ]; then
1371 rc=${KSFT_FAIL}
1372 print_check "syn tx"
1373 fail_test "got $count JOIN[s] syn tx expected $syn_tx"
1374 fi
1375
1376 count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynTxCreatSkErr")
1377 if [ -z "$count" ]; then
1378 rc=${KSFT_SKIP}
1379 elif [ "$count" != "$create" ]; then
1380 rc=${KSFT_FAIL}
1381 print_check "syn tx create socket error"
1382 fail_test "got $count JOIN[s] syn tx create socket error expected $create"
1383 fi
1384
1385 count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynTxBindErr")
1386 if [ -z "$count" ]; then
1387 rc=${KSFT_SKIP}
1388 elif [ "$count" != "$bind" ]; then
1389 rc=${KSFT_FAIL}
1390 print_check "syn tx bind error"
1391 fail_test "got $count JOIN[s] syn tx bind error expected $bind"
1392 fi
1393
1394 count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynTxConnectErr")
1395 if [ -z "$count" ]; then
1396 rc=${KSFT_SKIP}
1397 elif [ "$count" != "$connect" ]; then
1398 rc=${KSFT_FAIL}
1399 print_check "syn tx connect error"
1400 fail_test "got $count JOIN[s] syn tx connect error expected $connect"
1401 fi
1402
1403 print_results "join Tx" ${rc}
1404 }
1405
1406 chk_join_nr()
1407 {
1408 local syn_nr=$1
1409 local syn_ack_nr=$2
1410 local ack_nr=$3
1411 local csum_ns1=${join_csum_ns1:-0}
1412 local csum_ns2=${join_csum_ns2:-0}
1413 local fail_nr=${join_fail_nr:-0}
1414 local rst_nr=${join_rst_nr:-0}
1415 local infi_nr=${join_infi_nr:-0}
1416 local corrupted_pkts=${join_corrupted_pkts:-0}
1417 local rc=${KSFT_PASS}
1418 local count
1419 local with_cookie
1420
1421 if [ "${corrupted_pkts}" -gt 0 ]; then
1422 print_info "${corrupted_pkts} corrupted pkts"
1423 fi
1424
1425 count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPJoinSynRx")
1426 if [ -z "$count" ]; then
1427 rc=${KSFT_SKIP}
1428 elif [ "$count" != "$syn_nr" ]; then
1429 rc=${KSFT_FAIL}
1430 print_check "syn rx"
1431 fail_test "got $count JOIN[s] syn rx expected $syn_nr"
1432 fi
1433
1434 with_cookie=$(ip netns exec $ns2 sysctl -n net.ipv4.tcp_syncookies)
1435 count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynAckRx")
1436 if [ -z "$count" ]; then
1437 rc=${KSFT_SKIP}
1438 elif [ "$count" != "$syn_ack_nr" ]; then
1439 # simult connections exceeding the limit with cookie enabled could go up to
1440 # synack validation as the conn limit can be enforced reliably only after
1441 # the subflow creation
1442 if [ "$with_cookie" != 2 ] || [ "$count" -le "$syn_ack_nr" ] || [ "$count" -gt "$syn_nr" ]; then
1443 rc=${KSFT_FAIL}
1444 print_check "synack rx"
1445 fail_test "got $count JOIN[s] synack rx expected $syn_ack_nr"
1446 fi
1447 fi
1448
1449 count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPJoinAckRx")
1450 if [ -z "$count" ]; then
1451 rc=${KSFT_SKIP}
1452 elif [ "$count" != "$ack_nr" ]; then
1453 rc=${KSFT_FAIL}
1454 print_check "ack rx"
1455 fail_test "got $count JOIN[s] ack rx expected $ack_nr"
1456 fi
1457
1458 print_results "join Rx" ${rc}
1459
1460 join_syn_tx="${join_syn_tx:-${syn_nr}}" \
1461 chk_join_tx_nr
1462
1463 if $validate_checksum; then
1464 chk_csum_nr $csum_ns1 $csum_ns2
1465 chk_fail_nr $fail_nr $fail_nr
1466 chk_rst_nr $rst_nr $rst_nr
1467 chk_infi_nr $infi_nr $infi_nr
1468 fi
1469 }
1470
1471 # a negative value for 'stale_max' means no upper bound:
1472 # for bidirectional transfer, if one peer sleep for a while
1473 # - as these tests do - we can have a quite high number of
1474 # stale/recover conversions, proportional to
1475 # sleep duration/ MPTCP-level RTX interval.
1476 chk_stale_nr()
1477 {
1478 local ns=$1
1479 local stale_min=$2
1480 local stale_max=$3
1481 local stale_delta=$4
1482 local dump_stats
1483 local stale_nr
1484 local recover_nr
1485
1486 print_check "stale"
1487
1488 stale_nr=$(mptcp_lib_get_counter ${ns} "MPTcpExtSubflowStale")
1489 recover_nr=$(mptcp_lib_get_counter ${ns} "MPTcpExtSubflowRecover")
1490 if [ -z "$stale_nr" ] || [ -z "$recover_nr" ]; then
1491 print_skip
1492 elif [ $stale_nr -lt $stale_min ] ||
1493 { [ $stale_max -gt 0 ] && [ $stale_nr -gt $stale_max ]; } ||
1494 [ $((stale_nr - recover_nr)) -ne $stale_delta ]; then
1495 fail_test "got $stale_nr stale[s] $recover_nr recover[s], " \
1496 " expected stale in range [$stale_min..$stale_max]," \
1497 " stale-recover delta $stale_delta"
1498 dump_stats=1
1499 else
1500 print_ok
1501 fi
1502
1503 if [ "${dump_stats}" = 1 ]; then
1504 echo $ns stats
1505 ip netns exec $ns ip -s link show
1506 ip netns exec $ns nstat -as | grep MPTcp
1507 fi
1508 }
1509
1510 chk_add_nr()
1511 {
1512 local add_nr=$1
1513 local echo_nr=$2
1514 local port_nr=${3:-0}
1515 local ns_invert=${4:-""}
1516 local syn_nr=$port_nr
1517 local syn_ack_nr=$port_nr
1518 local ack_nr=$port_nr
1519 local mis_syn_nr=0
1520 local mis_ack_nr=0
1521 local ns_tx=$ns1
1522 local ns_rx=$ns2
1523 local tx=""
1524 local rx=""
1525 local count
1526 local timeout
1527
1528 if [[ $ns_invert = "invert" ]]; then
1529 ns_tx=$ns2
1530 ns_rx=$ns1
1531 tx=" client"
1532 rx=" server"
1533 fi
1534
1535 timeout=$(ip netns exec ${ns_tx} sysctl -n net.mptcp.add_addr_timeout)
1536
1537 print_check "add addr rx${rx}"
1538 count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtAddAddr")
1539 if [ -z "$count" ]; then
1540 print_skip
1541 # if the test configured a short timeout tolerate greater then expected
1542 # add addrs options, due to retransmissions
1543 elif [ "$count" != "$add_nr" ] && { [ "$timeout" -gt 1 ] || [ "$count" -lt "$add_nr" ]; }; then
1544 fail_test "got $count ADD_ADDR[s] expected $add_nr"
1545 else
1546 print_ok
1547 fi
1548
1549 print_check "add addr echo rx${tx}"
1550 count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtEchoAdd")
1551 if [ -z "$count" ]; then
1552 print_skip
1553 elif [ "$count" != "$echo_nr" ]; then
1554 fail_test "got $count ADD_ADDR echo[s] expected $echo_nr"
1555 else
1556 print_ok
1557 fi
1558
1559 if [ $port_nr -gt 0 ]; then
1560 print_check "add addr rx with port${rx}"
1561 count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtPortAdd")
1562 if [ -z "$count" ]; then
1563 print_skip
1564 elif [ "$count" != "$port_nr" ]; then
1565 fail_test "got $count ADD_ADDR[s] with a port-number expected $port_nr"
1566 else
1567 print_ok
1568 fi
1569
1570 print_check "syn rx port${tx}"
1571 count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMPJoinPortSynRx")
1572 if [ -z "$count" ]; then
1573 print_skip
1574 elif [ "$count" != "$syn_nr" ]; then
1575 fail_test "got $count JOIN[s] syn with a different \
1576 port-number expected $syn_nr"
1577 else
1578 print_ok
1579 fi
1580
1581 print_check "synack rx port${rx}"
1582 count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtMPJoinPortSynAckRx")
1583 if [ -z "$count" ]; then
1584 print_skip
1585 elif [ "$count" != "$syn_ack_nr" ]; then
1586 fail_test "got $count JOIN[s] synack with a different \
1587 port-number expected $syn_ack_nr"
1588 else
1589 print_ok
1590 fi
1591
1592 print_check "ack rx port${tx}"
1593 count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMPJoinPortAckRx")
1594 if [ -z "$count" ]; then
1595 print_skip
1596 elif [ "$count" != "$ack_nr" ]; then
1597 fail_test "got $count JOIN[s] ack with a different \
1598 port-number expected $ack_nr"
1599 else
1600 print_ok
1601 fi
1602
1603 print_check "syn rx port mismatch${tx}"
1604 count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMismatchPortSynRx")
1605 if [ -z "$count" ]; then
1606 print_skip
1607 elif [ "$count" != "$mis_syn_nr" ]; then
1608 fail_test "got $count JOIN[s] syn with a mismatched \
1609 port-number expected $mis_syn_nr"
1610 else
1611 print_ok
1612 fi
1613
1614 print_check "ack rx port mismatch${tx}"
1615 count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMismatchPortAckRx")
1616 if [ -z "$count" ]; then
1617 print_skip
1618 elif [ "$count" != "$mis_ack_nr" ]; then
1619 fail_test "got $count JOIN[s] ack with a mismatched \
1620 port-number expected $mis_ack_nr"
1621 else
1622 print_ok
1623 fi
1624 fi
1625 }
1626
1627 chk_add_tx_nr()
1628 {
1629 local add_tx_nr=$1
1630 local echo_tx_nr=$2
1631 local timeout
1632 local count
1633
1634 timeout=$(ip netns exec $ns1 sysctl -n net.mptcp.add_addr_timeout)
1635
1636 print_check "add addr tx"
1637 count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtAddAddrTx")
1638 if [ -z "$count" ]; then
1639 print_skip
1640 # if the test configured a short timeout tolerate greater then expected
1641 # add addrs options, due to retransmissions
1642 elif [ "$count" != "$add_tx_nr" ] && { [ "$timeout" -gt 1 ] || [ "$count" -lt "$add_tx_nr" ]; }; then
1643 fail_test "got $count ADD_ADDR[s] TX, expected $add_tx_nr"
1644 else
1645 print_ok
1646 fi
1647
1648 print_check "add addr echo tx"
1649 count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtEchoAddTx")
1650 if [ -z "$count" ]; then
1651 print_skip
1652 elif [ "$count" != "$echo_tx_nr" ]; then
1653 fail_test "got $count ADD_ADDR echo[s] TX, expected $echo_tx_nr"
1654 else
1655 print_ok
1656 fi
1657 }
1658
1659 chk_rm_nr()
1660 {
1661 local rm_addr_nr=$1
1662 local rm_subflow_nr=$2
1663 local invert
1664 local simult
1665 local count
1666 local addr_ns=$ns1
1667 local subflow_ns=$ns2
1668 local addr="server"
1669 local subflow="client"
1670 local extra_msg=""
1671
1672 shift 2
1673 while [ -n "$1" ]; do
1674 [ "$1" = "invert" ] && invert=true
1675 [ "$1" = "simult" ] && simult=true
1676 shift
1677 done
1678
1679 if [ "$invert" = "true" ]; then
1680 addr_ns=$ns2
1681 subflow_ns=$ns1
1682 addr="client"
1683 subflow="server"
1684 fi
1685
1686 print_check "rm addr rx ${addr}"
1687 count=$(mptcp_lib_get_counter ${addr_ns} "MPTcpExtRmAddr")
1688 if [ -z "$count" ]; then
1689 print_skip
1690 elif [ "$count" != "$rm_addr_nr" ]; then
1691 fail_test "got $count RM_ADDR[s] expected $rm_addr_nr"
1692 else
1693 print_ok
1694 fi
1695
1696 print_check "rm subflow ${subflow}"
1697 count=$(mptcp_lib_get_counter ${subflow_ns} "MPTcpExtRmSubflow")
1698 if [ -z "$count" ]; then
1699 print_skip
1700 elif [ -n "$simult" ]; then
1701 local cnt suffix
1702
1703 cnt=$(mptcp_lib_get_counter ${addr_ns} "MPTcpExtRmSubflow")
1704
1705 # in case of simult flush, the subflow removal count on each side is
1706 # unreliable
1707 count=$((count + cnt))
1708 if [ "$count" != "$rm_subflow_nr" ]; then
1709 suffix="$count in [$rm_subflow_nr:$((rm_subflow_nr*2))]"
1710 extra_msg="simult"
1711 fi
1712 if [ $count -ge "$rm_subflow_nr" ] && \
1713 [ "$count" -le "$((rm_subflow_nr *2 ))" ]; then
1714 print_ok "$suffix"
1715 else
1716 fail_test "got $count RM_SUBFLOW[s] expected in range [$rm_subflow_nr:$((rm_subflow_nr*2))]"
1717 fi
1718 elif [ "$count" != "$rm_subflow_nr" ]; then
1719 fail_test "got $count RM_SUBFLOW[s] expected $rm_subflow_nr"
1720 else
1721 print_ok
1722 fi
1723
1724 print_info "$extra_msg"
1725 }
1726
1727 chk_rm_tx_nr()
1728 {
1729 local rm_addr_tx_nr=$1
1730
1731 print_check "rm addr tx client"
1732 count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtRmAddrTx")
1733 if [ -z "$count" ]; then
1734 print_skip
1735 elif [ "$count" != "$rm_addr_tx_nr" ]; then
1736 fail_test "got $count RM_ADDR[s] expected $rm_addr_tx_nr"
1737 else
1738 print_ok
1739 fi
1740 }
1741
1742 chk_prio_nr()
1743 {
1744 local mp_prio_nr_tx=$1
1745 local mp_prio_nr_rx=$2
1746 local mpj_syn=$3
1747 local mpj_syn_ack=$4
1748 local count
1749
1750 print_check "mp_prio tx server"
1751 count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPPrioTx")
1752 if [ -z "$count" ]; then
1753 print_skip
1754 elif [ "$count" != "$mp_prio_nr_tx" ]; then
1755 fail_test "got $count MP_PRIO[s] TX expected $mp_prio_nr_tx"
1756 else
1757 print_ok
1758 fi
1759
1760 print_check "mp_prio rx client"
1761 count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPPrioRx")
1762 if [ -z "$count" ]; then
1763 print_skip
1764 elif [ "$count" != "$mp_prio_nr_rx" ]; then
1765 fail_test "got $count MP_PRIO[s] RX expected $mp_prio_nr_rx"
1766 else
1767 print_ok
1768 fi
1769
1770 print_check "syn backup"
1771 count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPJoinSynBackupRx")
1772 if [ -z "$count" ]; then
1773 print_skip
1774 elif [ "$count" != "$mpj_syn" ]; then
1775 fail_test "got $count JOIN[s] syn with Backup expected $mpj_syn"
1776 else
1777 print_ok
1778 fi
1779
1780 print_check "synack backup"
1781 count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynAckBackupRx")
1782 if [ -z "$count" ]; then
1783 print_skip
1784 elif [ "$count" != "$mpj_syn_ack" ]; then
1785 fail_test "got $count JOIN[s] synack with Backup expected $mpj_syn_ack"
1786 else
1787 print_ok
1788 fi
1789 }
1790
1791 chk_subflow_nr()
1792 {
1793 local msg="$1"
1794 local subflow_nr=$2
1795 local cnt1
1796 local cnt2
1797 local dump_stats
1798
1799 print_check "${msg}"
1800
1801 cnt1=$(ss -N $ns1 -tOni | grep -c token)
1802 cnt2=$(ss -N $ns2 -tOni | grep -c token)
1803 if [ "$cnt1" != "$subflow_nr" ] || [ "$cnt2" != "$subflow_nr" ]; then
1804 fail_test "got $cnt1:$cnt2 subflows expected $subflow_nr"
1805 dump_stats=1
1806 else
1807 print_ok
1808 fi
1809
1810 if [ "${dump_stats}" = 1 ]; then
1811 ss -N $ns1 -tOni
1812 ss -N $ns1 -tOni | grep token
1813 ip -n $ns1 mptcp endpoint
1814 fi
1815 }
1816
1817 chk_mptcp_info()
1818 {
1819 local info1=$1
1820 local exp1=$2
1821 local info2=$3
1822 local exp2=$4
1823 local cnt1
1824 local cnt2
1825 local dump_stats
1826
1827 print_check "mptcp_info ${info1:0:15}=$exp1:$exp2"
1828
1829 cnt1=$(ss -N $ns1 -inmHM | mptcp_lib_get_info_value "$info1" "$info1")
1830 cnt2=$(ss -N $ns2 -inmHM | mptcp_lib_get_info_value "$info2" "$info2")
1831 # 'ss' only display active connections and counters that are not 0.
1832 [ -z "$cnt1" ] && cnt1=0
1833 [ -z "$cnt2" ] && cnt2=0
1834
1835 if [ "$cnt1" != "$exp1" ] || [ "$cnt2" != "$exp2" ]; then
1836 fail_test "got $cnt1:$cnt2 $info1:$info2 expected $exp1:$exp2"
1837 dump_stats=1
1838 else
1839 print_ok
1840 fi
1841
1842 if [ "$dump_stats" = 1 ]; then
1843 ss -N $ns1 -inmHM
1844 ss -N $ns2 -inmHM
1845 fi
1846 }
1847
1848 # $1: subflows in ns1 ; $2: subflows in ns2
1849 # number of all subflows, including the initial subflow.
1850 chk_subflows_total()
1851 {
1852 local cnt1
1853 local cnt2
1854 local info="subflows_total"
1855 local dump_stats
1856
1857 # if subflows_total counter is supported, use it:
1858 if [ -n "$(ss -N $ns1 -inmHM | mptcp_lib_get_info_value $info $info)" ]; then
1859 chk_mptcp_info $info $1 $info $2
1860 return
1861 fi
1862
1863 print_check "$info $1:$2"
1864
1865 # if not, count the TCP connections that are in fact MPTCP subflows
1866 cnt1=$(ss -N $ns1 -ti state established state syn-sent state syn-recv |
1867 grep -c tcp-ulp-mptcp)
1868 cnt2=$(ss -N $ns2 -ti state established state syn-sent state syn-recv |
1869 grep -c tcp-ulp-mptcp)
1870
1871 if [ "$1" != "$cnt1" ] || [ "$2" != "$cnt2" ]; then
1872 fail_test "got subflows $cnt1:$cnt2 expected $1:$2"
1873 dump_stats=1
1874 else
1875 print_ok
1876 fi
1877
1878 if [ "$dump_stats" = 1 ]; then
1879 ss -N $ns1 -ti
1880 ss -N $ns2 -ti
1881 fi
1882 }
1883
1884 chk_link_usage()
1885 {
1886 local ns=$1
1887 local link=$2
1888 local out=$3
1889 local expected_rate=$4
1890
1891 local tx_link tx_total
1892 tx_link=$(ip netns exec $ns cat /sys/class/net/$link/statistics/tx_bytes)
1893 tx_total=$(stat --format=%s $out)
1894 local tx_rate=$((tx_link * 100 / tx_total))
1895 local tolerance=5
1896
1897 print_check "link usage"
1898 if [ $tx_rate -lt $((expected_rate - tolerance)) ] || \
1899 [ $tx_rate -gt $((expected_rate + tolerance)) ]; then
1900 fail_test "got $tx_rate% usage, expected $expected_rate%"
1901 else
1902 print_ok
1903 fi
1904 }
1905
1906 wait_attempt_fail()
1907 {
1908 local timeout_ms=$((timeout_poll * 1000))
1909 local time=0
1910 local ns=$1
1911
1912 while [ $time -lt $timeout_ms ]; do
1913 local cnt
1914
1915 cnt=$(mptcp_lib_get_counter ${ns} "TcpAttemptFails")
1916
1917 [ "$cnt" = 1 ] && return 1
1918 time=$((time + 100))
1919 sleep 0.1
1920 done
1921 return 1
1922 }
1923
1924 set_userspace_pm()
1925 {
1926 local ns=$1
1927
1928 ip netns exec $ns sysctl -q net.mptcp.pm_type=1
1929 }
1930
1931 subflows_tests()
1932 {
1933 if reset "no JOIN"; then
1934 run_tests $ns1 $ns2 10.0.1.1
1935 chk_join_nr 0 0 0
1936 fi
1937
1938 # subflow limited by client
1939 if reset "single subflow, limited by client"; then
1940 pm_nl_set_limits $ns1 0 0
1941 pm_nl_set_limits $ns2 0 0
1942 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
1943 run_tests $ns1 $ns2 10.0.1.1
1944 chk_join_nr 0 0 0
1945 fi
1946
1947 # subflow limited by server
1948 if reset "single subflow, limited by server"; then
1949 pm_nl_set_limits $ns1 0 0
1950 pm_nl_set_limits $ns2 0 1
1951 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
1952 run_tests $ns1 $ns2 10.0.1.1
1953 chk_join_nr 1 1 0
1954 fi
1955
1956 # subflow
1957 if reset "single subflow"; then
1958 pm_nl_set_limits $ns1 0 1
1959 pm_nl_set_limits $ns2 0 1
1960 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
1961 run_tests $ns1 $ns2 10.0.1.1
1962 chk_join_nr 1 1 1
1963 fi
1964
1965 # multiple subflows
1966 if reset "multiple subflows"; then
1967 pm_nl_set_limits $ns1 0 2
1968 pm_nl_set_limits $ns2 0 2
1969 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
1970 pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
1971 run_tests $ns1 $ns2 10.0.1.1
1972 chk_join_nr 2 2 2
1973 fi
1974
1975 # multiple subflows limited by server
1976 if reset "multiple subflows, limited by server"; then
1977 pm_nl_set_limits $ns1 0 1
1978 pm_nl_set_limits $ns2 0 2
1979 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
1980 pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
1981 run_tests $ns1 $ns2 10.0.1.1
1982 chk_join_nr 2 2 1
1983 fi
1984
1985 # single subflow, dev
1986 if reset "single subflow, dev"; then
1987 pm_nl_set_limits $ns1 0 1
1988 pm_nl_set_limits $ns2 0 1
1989 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow dev ns2eth3
1990 run_tests $ns1 $ns2 10.0.1.1
1991 chk_join_nr 1 1 1
1992 fi
1993 }
1994
1995 subflows_error_tests()
1996 {
1997 # If a single subflow is configured, and matches the MPC src
1998 # address, no additional subflow should be created
1999 if reset "no MPC reuse with single endpoint"; then
2000 pm_nl_set_limits $ns1 0 1
2001 pm_nl_set_limits $ns2 0 1
2002 pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow
2003 pm_nl_add_endpoint $ns2 10.0.12.2 flags subflow
2004 speed=slow \
2005 run_tests $ns1 $ns2 10.0.1.1
2006 join_bind_err=1 \
2007 chk_join_nr 0 0 0
2008 fi
2009
2010 # multiple subflows, with subflow creation error
2011 if reset_with_tcp_filter "multi subflows, with failing subflow" ns1 10.0.3.2 REJECT &&
2012 continue_if mptcp_lib_kallsyms_has "mptcp_pm_subflow_check_next$"; then
2013 pm_nl_set_limits $ns1 0 2
2014 pm_nl_set_limits $ns2 0 2
2015 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2016 pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
2017 speed=slow \
2018 run_tests $ns1 $ns2 10.0.1.1
2019 join_syn_tx=2 \
2020 chk_join_nr 1 1 1
2021 fi
2022
2023 # multiple subflows, with subflow timeout on MPJ
2024 if reset_with_tcp_filter "multi subflows, with subflow timeout" ns1 10.0.3.2 DROP &&
2025 continue_if mptcp_lib_kallsyms_has "mptcp_pm_subflow_check_next$"; then
2026 pm_nl_set_limits $ns1 0 2
2027 pm_nl_set_limits $ns2 0 2
2028 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2029 pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
2030 speed=slow \
2031 run_tests $ns1 $ns2 10.0.1.1
2032 join_syn_tx=2 \
2033 chk_join_nr 1 1 1
2034 fi
2035
2036 # multiple subflows, check that the endpoint corresponding to
2037 # closed subflow (due to reset) is not reused if additional
2038 # subflows are added later
2039 if reset_with_tcp_filter "multi subflows, fair usage on close" ns1 10.0.3.2 REJECT &&
2040 continue_if mptcp_lib_kallsyms_has "mptcp_pm_subflow_check_next$"; then
2041 pm_nl_set_limits $ns1 0 1
2042 pm_nl_set_limits $ns2 0 1
2043 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2044 speed=slow \
2045 run_tests $ns1 $ns2 10.0.1.1 &
2046
2047 # mpj subflow will be in TW after the reset
2048 wait_attempt_fail $ns2
2049 pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
2050 wait
2051
2052 # additional subflow could be created only if the PM select
2053 # the later endpoint, skipping the already used one
2054 join_syn_tx=2 \
2055 chk_join_nr 1 1 1
2056 fi
2057 }
2058
2059 signal_address_tests()
2060 {
2061 # add_address, unused
2062 if reset "unused signal address"; then
2063 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
2064 run_tests $ns1 $ns2 10.0.1.1
2065 chk_join_nr 0 0 0
2066 chk_add_tx_nr 1 1
2067 chk_add_nr 1 1
2068 fi
2069
2070 # accept and use add_addr
2071 if reset "signal address"; then
2072 pm_nl_set_limits $ns1 0 1
2073 pm_nl_set_limits $ns2 1 1
2074 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
2075 run_tests $ns1 $ns2 10.0.1.1
2076 chk_join_nr 1 1 1
2077 chk_add_nr 1 1
2078 fi
2079
2080 # accept and use add_addr with an additional subflow
2081 # note: signal address in server ns and local addresses in client ns must
2082 # belong to different subnets or one of the listed local address could be
2083 # used for 'add_addr' subflow
2084 if reset "subflow and signal"; then
2085 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
2086 pm_nl_set_limits $ns1 0 2
2087 pm_nl_set_limits $ns2 1 2
2088 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2089 run_tests $ns1 $ns2 10.0.1.1
2090 chk_join_nr 2 2 2
2091 chk_add_nr 1 1
2092 fi
2093
2094 # uncommon: subflow and signal flags on the same endpoint
2095 # or because the user wrongly picked both, but still expects the client
2096 # to create additional subflows
2097 if reset "subflow and signal together"; then
2098 pm_nl_set_limits $ns1 0 2
2099 pm_nl_set_limits $ns2 0 2
2100 pm_nl_add_endpoint $ns2 10.0.3.2 flags signal,subflow
2101 run_tests $ns1 $ns2 10.0.1.1
2102 chk_join_nr 1 1 1
2103 chk_add_nr 1 1 0 invert # only initiated by ns2
2104 chk_add_nr 0 0 0 # none initiated by ns1
2105 chk_rst_nr 0 0 invert # no RST sent by the client
2106 chk_rst_nr 0 0 # no RST sent by the server
2107 fi
2108
2109 # accept and use add_addr with additional subflows
2110 if reset "multiple subflows and signal"; then
2111 pm_nl_set_limits $ns1 0 3
2112 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
2113 pm_nl_set_limits $ns2 1 3
2114 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2115 pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
2116 run_tests $ns1 $ns2 10.0.1.1
2117 chk_join_nr 3 3 3
2118 chk_add_nr 1 1
2119 fi
2120
2121 # signal addresses
2122 if reset "signal addresses"; then
2123 pm_nl_set_limits $ns1 3 3
2124 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
2125 pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
2126 pm_nl_add_endpoint $ns1 10.0.4.1 flags signal
2127 pm_nl_set_limits $ns2 3 3
2128 run_tests $ns1 $ns2 10.0.1.1
2129 chk_join_nr 3 3 3
2130 chk_add_nr 3 3
2131 fi
2132
2133 # signal invalid addresses
2134 if reset "signal invalid addresses"; then
2135 pm_nl_set_limits $ns1 3 3
2136 pm_nl_add_endpoint $ns1 10.0.12.1 flags signal
2137 pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
2138 pm_nl_add_endpoint $ns1 10.0.14.1 flags signal
2139 pm_nl_set_limits $ns2 3 3
2140 run_tests $ns1 $ns2 10.0.1.1
2141 join_syn_tx=3 \
2142 chk_join_nr 1 1 1
2143 chk_add_nr 3 3
2144 fi
2145
2146 # signal addresses race test
2147 if reset "signal addresses race test"; then
2148 pm_nl_set_limits $ns1 4 4
2149 pm_nl_set_limits $ns2 4 4
2150 pm_nl_add_endpoint $ns1 10.0.1.1 flags signal
2151 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
2152 pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
2153 pm_nl_add_endpoint $ns1 10.0.4.1 flags signal
2154 pm_nl_add_endpoint $ns2 10.0.1.2 flags signal
2155 pm_nl_add_endpoint $ns2 10.0.2.2 flags signal
2156 pm_nl_add_endpoint $ns2 10.0.3.2 flags signal
2157 pm_nl_add_endpoint $ns2 10.0.4.2 flags signal
2158
2159 # the peer could possibly miss some addr notification, allow retransmission
2160 ip netns exec $ns1 sysctl -q net.mptcp.add_addr_timeout=1
2161 speed=slow \
2162 run_tests $ns1 $ns2 10.0.1.1
2163
2164 # It is not directly linked to the commit introducing this
2165 # symbol but for the parent one which is linked anyway.
2166 if ! mptcp_lib_kallsyms_has "mptcp_pm_subflow_check_next$"; then
2167 chk_join_nr 3 3 2
2168 chk_add_nr 4 4
2169 else
2170 chk_join_nr 3 3 3
2171 # the server will not signal the address terminating
2172 # the MPC subflow
2173 chk_add_nr 3 3
2174 fi
2175 fi
2176 }
2177
2178 link_failure_tests()
2179 {
2180 # accept and use add_addr with additional subflows and link loss
2181 if reset "multiple flows, signal, link failure"; then
2182 # without any b/w limit each veth could spool the packets and get
2183 # them acked at xmit time, so that the corresponding subflow will
2184 # have almost always no outstanding pkts, the scheduler will pick
2185 # always the first subflow and we will have hard time testing
2186 # active backup and link switch-over.
2187 # Let's set some arbitrary (low) virtual link limits.
2188 init_shapers
2189 pm_nl_set_limits $ns1 0 3
2190 pm_nl_add_endpoint $ns1 10.0.2.1 dev ns1eth2 flags signal
2191 pm_nl_set_limits $ns2 1 3
2192 pm_nl_add_endpoint $ns2 10.0.3.2 dev ns2eth3 flags subflow
2193 pm_nl_add_endpoint $ns2 10.0.4.2 dev ns2eth4 flags subflow
2194 test_linkfail=1 \
2195 run_tests $ns1 $ns2 10.0.1.1
2196 chk_join_nr 3 3 3
2197 chk_add_nr 1 1
2198 chk_stale_nr $ns2 1 5 1
2199 fi
2200
2201 # accept and use add_addr with additional subflows and link loss
2202 # for bidirectional transfer
2203 if reset "multi flows, signal, bidi, link fail"; then
2204 init_shapers
2205 pm_nl_set_limits $ns1 0 3
2206 pm_nl_add_endpoint $ns1 10.0.2.1 dev ns1eth2 flags signal
2207 pm_nl_set_limits $ns2 1 3
2208 pm_nl_add_endpoint $ns2 10.0.3.2 dev ns2eth3 flags subflow
2209 pm_nl_add_endpoint $ns2 10.0.4.2 dev ns2eth4 flags subflow
2210 test_linkfail=2 \
2211 run_tests $ns1 $ns2 10.0.1.1
2212 chk_join_nr 3 3 3
2213 chk_add_nr 1 1
2214 chk_stale_nr $ns2 1 -1 1
2215 fi
2216
2217 # 2 subflows plus 1 backup subflow with a lossy link, backup
2218 # will never be used
2219 if reset "backup subflow unused, link failure"; then
2220 init_shapers
2221 pm_nl_set_limits $ns1 0 2
2222 pm_nl_add_endpoint $ns1 10.0.2.1 dev ns1eth2 flags signal
2223 pm_nl_set_limits $ns2 1 2
2224 pm_nl_add_endpoint $ns2 10.0.3.2 dev ns2eth3 flags subflow,backup
2225 FAILING_LINKS="1" test_linkfail=1 \
2226 run_tests $ns1 $ns2 10.0.1.1
2227 chk_join_nr 2 2 2
2228 chk_add_nr 1 1
2229 chk_link_usage $ns2 ns2eth3 $cinsent 0
2230 fi
2231
2232 # 2 lossy links after half transfer, backup will get half of
2233 # the traffic
2234 if reset "backup flow used, multi links fail"; then
2235 init_shapers
2236 pm_nl_set_limits $ns1 0 2
2237 pm_nl_add_endpoint $ns1 10.0.2.1 dev ns1eth2 flags signal
2238 pm_nl_set_limits $ns2 1 2
2239 pm_nl_add_endpoint $ns2 10.0.3.2 dev ns2eth3 flags subflow,backup
2240 FAILING_LINKS="1 2" test_linkfail=1 \
2241 run_tests $ns1 $ns2 10.0.1.1
2242 chk_join_nr 2 2 2
2243 chk_add_nr 1 1
2244 chk_stale_nr $ns2 2 4 2
2245 chk_link_usage $ns2 ns2eth3 $cinsent 50
2246 fi
2247
2248 # use a backup subflow with the first subflow on a lossy link
2249 # for bidirectional transfer
2250 if reset "backup flow used, bidi, link failure"; then
2251 init_shapers
2252 pm_nl_set_limits $ns1 0 2
2253 pm_nl_add_endpoint $ns1 10.0.2.1 dev ns1eth2 flags signal
2254 pm_nl_set_limits $ns2 1 3
2255 pm_nl_add_endpoint $ns2 10.0.3.2 dev ns2eth3 flags subflow,backup
2256 FAILING_LINKS="1 2" test_linkfail=2 \
2257 run_tests $ns1 $ns2 10.0.1.1
2258 chk_join_nr 2 2 2
2259 chk_add_nr 1 1
2260 chk_stale_nr $ns2 1 -1 2
2261 chk_link_usage $ns2 ns2eth3 $cinsent 50
2262 fi
2263 }
2264
2265 add_addr_timeout_tests()
2266 {
2267 # add_addr timeout
2268 if reset_with_add_addr_timeout "signal address, ADD_ADDR timeout"; then
2269 pm_nl_set_limits $ns1 0 1
2270 pm_nl_set_limits $ns2 1 1
2271 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
2272 speed=slow \
2273 run_tests $ns1 $ns2 10.0.1.1
2274 chk_join_nr 1 1 1
2275 chk_add_tx_nr 4 4
2276 chk_add_nr 4 0
2277 fi
2278
2279 # add_addr timeout IPv6
2280 if reset_with_add_addr_timeout "signal address, ADD_ADDR6 timeout" 6; then
2281 pm_nl_set_limits $ns1 0 1
2282 pm_nl_set_limits $ns2 1 1
2283 pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
2284 speed=slow \
2285 run_tests $ns1 $ns2 dead:beef:1::1
2286 chk_join_nr 1 1 1
2287 chk_add_nr 4 0
2288 fi
2289
2290 # signal addresses timeout
2291 if reset_with_add_addr_timeout "signal addresses, ADD_ADDR timeout"; then
2292 pm_nl_set_limits $ns1 2 2
2293 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
2294 pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
2295 pm_nl_set_limits $ns2 2 2
2296 speed=10 \
2297 run_tests $ns1 $ns2 10.0.1.1
2298 chk_join_nr 2 2 2
2299 chk_add_nr 8 0
2300 fi
2301
2302 # signal invalid addresses timeout
2303 if reset_with_add_addr_timeout "invalid address, ADD_ADDR timeout"; then
2304 pm_nl_set_limits $ns1 2 2
2305 pm_nl_add_endpoint $ns1 10.0.12.1 flags signal
2306 pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
2307 pm_nl_set_limits $ns2 2 2
2308 speed=10 \
2309 run_tests $ns1 $ns2 10.0.1.1
2310 join_syn_tx=2 \
2311 chk_join_nr 1 1 1
2312 chk_add_nr 8 0
2313 fi
2314 }
2315
2316 remove_tests()
2317 {
2318 # single subflow, remove
2319 if reset "remove single subflow"; then
2320 pm_nl_set_limits $ns1 0 1
2321 pm_nl_set_limits $ns2 0 1
2322 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2323 addr_nr_ns2=-1 speed=slow \
2324 run_tests $ns1 $ns2 10.0.1.1
2325 chk_join_nr 1 1 1
2326 chk_rm_tx_nr 1
2327 chk_rm_nr 1 1
2328 chk_rst_nr 0 0
2329 fi
2330
2331 # multiple subflows, remove
2332 if reset "remove multiple subflows"; then
2333 pm_nl_set_limits $ns1 0 2
2334 pm_nl_set_limits $ns2 0 2
2335 pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
2336 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2337 addr_nr_ns2=-2 speed=slow \
2338 run_tests $ns1 $ns2 10.0.1.1
2339 chk_join_nr 2 2 2
2340 chk_rm_nr 2 2
2341 chk_rst_nr 0 0
2342 fi
2343
2344 # single address, remove
2345 if reset "remove single address"; then
2346 pm_nl_set_limits $ns1 0 1
2347 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
2348 pm_nl_set_limits $ns2 1 1
2349 addr_nr_ns1=-1 speed=slow \
2350 run_tests $ns1 $ns2 10.0.1.1
2351 chk_join_nr 1 1 1
2352 chk_add_nr 1 1
2353 chk_rm_nr 1 1 invert
2354 chk_rst_nr 0 0
2355 fi
2356
2357 # subflow and signal, remove
2358 if reset "remove subflow and signal"; then
2359 pm_nl_set_limits $ns1 0 2
2360 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
2361 pm_nl_set_limits $ns2 1 2
2362 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2363 addr_nr_ns1=-1 addr_nr_ns2=-1 speed=slow \
2364 run_tests $ns1 $ns2 10.0.1.1
2365 chk_join_nr 2 2 2
2366 chk_add_nr 1 1
2367 chk_rm_nr 1 1
2368 chk_rst_nr 0 0
2369 fi
2370
2371 # subflows and signal, remove
2372 if reset "remove subflows and signal"; then
2373 pm_nl_set_limits $ns1 0 3
2374 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
2375 pm_nl_set_limits $ns2 1 3
2376 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2377 pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
2378 addr_nr_ns1=-1 addr_nr_ns2=-2 speed=10 \
2379 run_tests $ns1 $ns2 10.0.1.1
2380 chk_join_nr 3 3 3
2381 chk_add_nr 1 1
2382 chk_rm_nr 2 2
2383 chk_rst_nr 0 0
2384 fi
2385
2386 # addresses remove
2387 if reset "remove addresses"; then
2388 pm_nl_set_limits $ns1 3 3
2389 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal id 250
2390 pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
2391 pm_nl_add_endpoint $ns1 10.0.4.1 flags signal
2392 pm_nl_set_limits $ns2 3 3
2393 addr_nr_ns1=-3 speed=10 \
2394 run_tests $ns1 $ns2 10.0.1.1
2395 chk_join_nr 3 3 3
2396 chk_add_nr 3 3
2397 chk_rm_nr 3 3 invert
2398 chk_rst_nr 0 0
2399 fi
2400
2401 # invalid addresses remove
2402 if reset "remove invalid addresses"; then
2403 pm_nl_set_limits $ns1 3 3
2404 pm_nl_add_endpoint $ns1 10.0.12.1 flags signal
2405 # broadcast IP: no packet for this address will be received on ns1
2406 pm_nl_add_endpoint $ns1 224.0.0.1 flags signal
2407 pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
2408 pm_nl_set_limits $ns2 2 2
2409 addr_nr_ns1=-3 speed=10 \
2410 run_tests $ns1 $ns2 10.0.1.1
2411 join_syn_tx=2 join_connect_err=1 \
2412 chk_join_nr 1 1 1
2413 chk_add_nr 3 3
2414 chk_rm_nr 3 1 invert
2415 chk_rst_nr 0 0
2416 fi
2417
2418 # subflows and signal, flush
2419 if reset "flush subflows and signal"; then
2420 pm_nl_set_limits $ns1 0 3
2421 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
2422 pm_nl_set_limits $ns2 1 3
2423 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2424 pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
2425 addr_nr_ns1=-8 addr_nr_ns2=-8 speed=slow \
2426 run_tests $ns1 $ns2 10.0.1.1
2427 chk_join_nr 3 3 3
2428 chk_add_nr 1 1
2429 chk_rm_nr 1 3 invert simult
2430 chk_rst_nr 0 0
2431 fi
2432
2433 # subflows flush
2434 if reset "flush subflows"; then
2435 pm_nl_set_limits $ns1 3 3
2436 pm_nl_set_limits $ns2 3 3
2437 pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow id 150
2438 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2439 pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
2440 addr_nr_ns1=-8 addr_nr_ns2=-8 speed=slow \
2441 run_tests $ns1 $ns2 10.0.1.1
2442 chk_join_nr 3 3 3
2443
2444 if mptcp_lib_kversion_ge 5.18; then
2445 chk_rm_tx_nr 0
2446 chk_rm_nr 0 3 simult
2447 else
2448 chk_rm_nr 3 3
2449 fi
2450 chk_rst_nr 0 0
2451 fi
2452
2453 # addresses flush
2454 if reset "flush addresses"; then
2455 pm_nl_set_limits $ns1 3 3
2456 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal id 250
2457 pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
2458 pm_nl_add_endpoint $ns1 10.0.4.1 flags signal
2459 pm_nl_set_limits $ns2 3 3
2460 addr_nr_ns1=-8 addr_nr_ns2=-8 speed=slow \
2461 run_tests $ns1 $ns2 10.0.1.1
2462 chk_join_nr 3 3 3
2463 chk_add_nr 3 3
2464 chk_rm_nr 3 3 invert simult
2465 chk_rst_nr 0 0
2466 fi
2467
2468 # invalid addresses flush
2469 if reset "flush invalid addresses"; then
2470 pm_nl_set_limits $ns1 3 3
2471 pm_nl_add_endpoint $ns1 10.0.12.1 flags signal
2472 pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
2473 pm_nl_add_endpoint $ns1 10.0.14.1 flags signal
2474 pm_nl_set_limits $ns2 3 3
2475 addr_nr_ns1=-8 speed=slow \
2476 run_tests $ns1 $ns2 10.0.1.1
2477 join_syn_tx=3 \
2478 chk_join_nr 1 1 1
2479 chk_add_nr 3 3
2480 chk_rm_nr 3 1 invert
2481 chk_rst_nr 0 0
2482 fi
2483
2484 # remove id 0 subflow
2485 if reset "remove id 0 subflow"; then
2486 pm_nl_set_limits $ns1 0 1
2487 pm_nl_set_limits $ns2 0 1
2488 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2489 addr_nr_ns2=-9 speed=slow \
2490 run_tests $ns1 $ns2 10.0.1.1
2491 chk_join_nr 1 1 1
2492 chk_rm_nr 1 1
2493 chk_rst_nr 0 0
2494 fi
2495
2496 # remove id 0 address
2497 if reset "remove id 0 address"; then
2498 pm_nl_set_limits $ns1 0 1
2499 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
2500 pm_nl_set_limits $ns2 1 1
2501 addr_nr_ns1=-9 speed=slow \
2502 run_tests $ns1 $ns2 10.0.1.1
2503 chk_join_nr 1 1 1
2504 chk_add_nr 1 1
2505 chk_rm_nr 1 1 invert
2506 chk_rst_nr 0 0 invert
2507 fi
2508 }
2509
2510 add_tests()
2511 {
2512 # add single subflow
2513 if reset "add single subflow"; then
2514 pm_nl_set_limits $ns1 0 1
2515 pm_nl_set_limits $ns2 0 1
2516 addr_nr_ns2=1 speed=slow cestab_ns2=1 \
2517 run_tests $ns1 $ns2 10.0.1.1
2518 chk_join_nr 1 1 1
2519 chk_cestab_nr $ns2 0
2520 fi
2521
2522 # add signal address
2523 if reset "add signal address"; then
2524 pm_nl_set_limits $ns1 0 1
2525 pm_nl_set_limits $ns2 1 1
2526 addr_nr_ns1=1 speed=slow cestab_ns1=1 \
2527 run_tests $ns1 $ns2 10.0.1.1
2528 chk_join_nr 1 1 1
2529 chk_add_nr 1 1
2530 chk_cestab_nr $ns1 0
2531 fi
2532
2533 # add multiple subflows
2534 if reset "add multiple subflows"; then
2535 pm_nl_set_limits $ns1 0 2
2536 pm_nl_set_limits $ns2 0 2
2537 addr_nr_ns2=2 speed=slow cestab_ns2=1 \
2538 run_tests $ns1 $ns2 10.0.1.1
2539 chk_join_nr 2 2 2
2540 chk_cestab_nr $ns2 0
2541 fi
2542
2543 # add multiple subflows IPv6
2544 if reset "add multiple subflows IPv6"; then
2545 pm_nl_set_limits $ns1 0 2
2546 pm_nl_set_limits $ns2 0 2
2547 addr_nr_ns2=2 speed=slow cestab_ns2=1 \
2548 run_tests $ns1 $ns2 dead:beef:1::1
2549 chk_join_nr 2 2 2
2550 chk_cestab_nr $ns2 0
2551 fi
2552
2553 # add multiple addresses IPv6
2554 if reset "add multiple addresses IPv6"; then
2555 pm_nl_set_limits $ns1 0 2
2556 pm_nl_set_limits $ns2 2 2
2557 addr_nr_ns1=2 speed=slow cestab_ns1=1 \
2558 run_tests $ns1 $ns2 dead:beef:1::1
2559 chk_join_nr 2 2 2
2560 chk_add_nr 2 2
2561 chk_cestab_nr $ns1 0
2562 fi
2563 }
2564
2565 ipv6_tests()
2566 {
2567 # subflow IPv6
2568 if reset "single subflow IPv6"; then
2569 pm_nl_set_limits $ns1 0 1
2570 pm_nl_set_limits $ns2 0 1
2571 pm_nl_add_endpoint $ns2 dead:beef:3::2 dev ns2eth3 flags subflow
2572 speed=slow \
2573 run_tests $ns1 $ns2 dead:beef:1::1
2574 chk_join_nr 1 1 1
2575 fi
2576
2577 # add_address, unused IPv6
2578 if reset "unused signal address IPv6"; then
2579 pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
2580 speed=slow \
2581 run_tests $ns1 $ns2 dead:beef:1::1
2582 chk_join_nr 0 0 0
2583 chk_add_nr 1 1
2584 fi
2585
2586 # signal address IPv6
2587 if reset "single address IPv6"; then
2588 pm_nl_set_limits $ns1 0 1
2589 pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
2590 pm_nl_set_limits $ns2 1 1
2591 speed=slow \
2592 run_tests $ns1 $ns2 dead:beef:1::1
2593 chk_join_nr 1 1 1
2594 chk_add_nr 1 1
2595 fi
2596
2597 # single address IPv6, remove
2598 if reset "remove single address IPv6"; then
2599 pm_nl_set_limits $ns1 0 1
2600 pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
2601 pm_nl_set_limits $ns2 1 1
2602 addr_nr_ns1=-1 speed=slow \
2603 run_tests $ns1 $ns2 dead:beef:1::1
2604 chk_join_nr 1 1 1
2605 chk_add_nr 1 1
2606 chk_rm_nr 1 1 invert
2607 fi
2608
2609 # subflow and signal IPv6, remove
2610 if reset "remove subflow and signal IPv6"; then
2611 pm_nl_set_limits $ns1 0 2
2612 pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
2613 pm_nl_set_limits $ns2 1 2
2614 pm_nl_add_endpoint $ns2 dead:beef:3::2 dev ns2eth3 flags subflow
2615 addr_nr_ns1=-1 addr_nr_ns2=-1 speed=slow \
2616 run_tests $ns1 $ns2 dead:beef:1::1
2617 chk_join_nr 2 2 2
2618 chk_add_nr 1 1
2619 chk_rm_nr 1 1
2620 fi
2621 }
2622
2623 v4mapped_tests()
2624 {
2625 # subflow IPv4-mapped to IPv4-mapped
2626 if reset "single subflow IPv4-mapped"; then
2627 pm_nl_set_limits $ns1 0 1
2628 pm_nl_set_limits $ns2 0 1
2629 pm_nl_add_endpoint $ns2 "::ffff:10.0.3.2" flags subflow
2630 run_tests $ns1 $ns2 "::ffff:10.0.1.1"
2631 chk_join_nr 1 1 1
2632 fi
2633
2634 # signal address IPv4-mapped with IPv4-mapped sk
2635 if reset "signal address IPv4-mapped"; then
2636 pm_nl_set_limits $ns1 0 1
2637 pm_nl_set_limits $ns2 1 1
2638 pm_nl_add_endpoint $ns1 "::ffff:10.0.2.1" flags signal
2639 run_tests $ns1 $ns2 "::ffff:10.0.1.1"
2640 chk_join_nr 1 1 1
2641 chk_add_nr 1 1
2642 fi
2643
2644 # subflow v4-map-v6
2645 if reset "single subflow v4-map-v6"; then
2646 pm_nl_set_limits $ns1 0 1
2647 pm_nl_set_limits $ns2 0 1
2648 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2649 run_tests $ns1 $ns2 "::ffff:10.0.1.1"
2650 chk_join_nr 1 1 1
2651 fi
2652
2653 # signal address v4-map-v6
2654 if reset "signal address v4-map-v6"; then
2655 pm_nl_set_limits $ns1 0 1
2656 pm_nl_set_limits $ns2 1 1
2657 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
2658 run_tests $ns1 $ns2 "::ffff:10.0.1.1"
2659 chk_join_nr 1 1 1
2660 chk_add_nr 1 1
2661 fi
2662
2663 # subflow v6-map-v4
2664 if reset "single subflow v6-map-v4"; then
2665 pm_nl_set_limits $ns1 0 1
2666 pm_nl_set_limits $ns2 0 1
2667 pm_nl_add_endpoint $ns2 "::ffff:10.0.3.2" flags subflow
2668 run_tests $ns1 $ns2 10.0.1.1
2669 chk_join_nr 1 1 1
2670 fi
2671
2672 # signal address v6-map-v4
2673 if reset "signal address v6-map-v4"; then
2674 pm_nl_set_limits $ns1 0 1
2675 pm_nl_set_limits $ns2 1 1
2676 pm_nl_add_endpoint $ns1 "::ffff:10.0.2.1" flags signal
2677 run_tests $ns1 $ns2 10.0.1.1
2678 chk_join_nr 1 1 1
2679 chk_add_nr 1 1
2680 fi
2681
2682 # no subflow IPv6 to v4 address
2683 if reset "no JOIN with diff families v4-v6"; then
2684 pm_nl_set_limits $ns1 0 1
2685 pm_nl_set_limits $ns2 0 1
2686 pm_nl_add_endpoint $ns2 dead:beef:2::2 flags subflow
2687 run_tests $ns1 $ns2 10.0.1.1
2688 chk_join_nr 0 0 0
2689 fi
2690
2691 # no subflow IPv6 to v4 address even if v6 has a valid v4 at the end
2692 if reset "no JOIN with diff families v4-v6-2"; then
2693 pm_nl_set_limits $ns1 0 1
2694 pm_nl_set_limits $ns2 0 1
2695 pm_nl_add_endpoint $ns2 dead:beef:2::10.0.3.2 flags subflow
2696 run_tests $ns1 $ns2 10.0.1.1
2697 chk_join_nr 0 0 0
2698 fi
2699
2700 # no subflow IPv4 to v6 address, no need to slow down too then
2701 if reset "no JOIN with diff families v6-v4"; then
2702 pm_nl_set_limits $ns1 0 1
2703 pm_nl_set_limits $ns2 0 1
2704 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2705 run_tests $ns1 $ns2 dead:beef:1::1
2706 chk_join_nr 0 0 0
2707 fi
2708 }
2709
2710 mixed_tests()
2711 {
2712 if reset "IPv4 sockets do not use IPv6 addresses" &&
2713 continue_if mptcp_lib_kversion_ge 6.3; then
2714 pm_nl_set_limits $ns1 0 1
2715 pm_nl_set_limits $ns2 1 1
2716 pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
2717 speed=slow \
2718 run_tests $ns1 $ns2 10.0.1.1
2719 chk_join_nr 0 0 0
2720 fi
2721
2722 # Need an IPv6 mptcp socket to allow subflows of both families
2723 if reset "simult IPv4 and IPv6 subflows" &&
2724 continue_if mptcp_lib_kversion_ge 6.3; then
2725 pm_nl_set_limits $ns1 0 1
2726 pm_nl_set_limits $ns2 1 1
2727 pm_nl_add_endpoint $ns1 10.0.1.1 flags signal
2728 speed=slow \
2729 run_tests $ns1 $ns2 dead:beef:2::1
2730 chk_join_nr 1 1 1
2731 fi
2732
2733 # cross families subflows will not be created even in fullmesh mode
2734 if reset "simult IPv4 and IPv6 subflows, fullmesh 1x1" &&
2735 continue_if mptcp_lib_kversion_ge 6.3; then
2736 pm_nl_set_limits $ns1 0 4
2737 pm_nl_set_limits $ns2 1 4
2738 pm_nl_add_endpoint $ns2 dead:beef:2::2 flags subflow,fullmesh
2739 pm_nl_add_endpoint $ns1 10.0.1.1 flags signal
2740 speed=slow \
2741 run_tests $ns1 $ns2 dead:beef:2::1
2742 chk_join_nr 1 1 1
2743 fi
2744
2745 # fullmesh still tries to create all the possibly subflows with
2746 # matching family
2747 if reset "simult IPv4 and IPv6 subflows, fullmesh 2x2" &&
2748 continue_if mptcp_lib_kversion_ge 6.3; then
2749 pm_nl_set_limits $ns1 0 4
2750 pm_nl_set_limits $ns2 2 4
2751 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
2752 pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
2753 fullmesh=1 speed=slow \
2754 run_tests $ns1 $ns2 dead:beef:1::1
2755 chk_join_nr 4 4 4
2756 fi
2757 }
2758
2759 backup_tests()
2760 {
2761 # single subflow, backup
2762 if reset "single subflow, backup" &&
2763 continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
2764 pm_nl_set_limits $ns1 0 1
2765 pm_nl_set_limits $ns2 0 1
2766 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
2767 sflags=nobackup speed=slow \
2768 run_tests $ns1 $ns2 10.0.1.1
2769 chk_join_nr 1 1 1
2770 chk_prio_nr 0 1 1 0
2771 fi
2772
2773 # single address, backup
2774 if reset "single address, backup" &&
2775 continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
2776 pm_nl_set_limits $ns1 0 1
2777 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup
2778 pm_nl_set_limits $ns2 1 1
2779 sflags=nobackup speed=slow \
2780 run_tests $ns1 $ns2 10.0.1.1
2781 chk_join_nr 1 1 1
2782 chk_add_nr 1 1
2783 chk_prio_nr 1 0 0 1
2784 fi
2785
2786 # single address, switch to backup
2787 if reset "single address, switch to backup" &&
2788 continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
2789 pm_nl_set_limits $ns1 0 1
2790 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
2791 pm_nl_set_limits $ns2 1 1
2792 sflags=backup speed=slow \
2793 run_tests $ns1 $ns2 10.0.1.1
2794 chk_join_nr 1 1 1
2795 chk_add_nr 1 1
2796 chk_prio_nr 1 1 0 0
2797 fi
2798
2799 # single address with port, backup
2800 if reset "single address with port, backup" &&
2801 continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
2802 pm_nl_set_limits $ns1 0 1
2803 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup port 10100
2804 pm_nl_set_limits $ns2 1 1
2805 sflags=nobackup speed=slow \
2806 run_tests $ns1 $ns2 10.0.1.1
2807 chk_join_nr 1 1 1
2808 chk_add_nr 1 1
2809 chk_prio_nr 1 0 0 1
2810 fi
2811
2812 if reset "mpc backup" &&
2813 continue_if mptcp_lib_kallsyms_doesnt_have "T mptcp_subflow_send_ack$"; then
2814 pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow,backup
2815 speed=slow \
2816 run_tests $ns1 $ns2 10.0.1.1
2817 chk_join_nr 0 0 0
2818 chk_prio_nr 0 1 0 0
2819 fi
2820
2821 if reset "mpc backup both sides" &&
2822 continue_if mptcp_lib_kallsyms_doesnt_have "T mptcp_subflow_send_ack$"; then
2823 pm_nl_set_limits $ns1 0 2
2824 pm_nl_set_limits $ns2 1 2
2825 pm_nl_add_endpoint $ns1 10.0.1.1 flags signal,backup
2826 pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow,backup
2827
2828 # 10.0.2.2 (non-backup) -> 10.0.1.1 (backup)
2829 pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
2830 # 10.0.1.2 (backup) -> 10.0.2.1 (non-backup)
2831 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
2832 ip -net "$ns2" route add 10.0.2.1 via 10.0.1.1 dev ns2eth1 # force this path
2833
2834 speed=slow \
2835 run_tests $ns1 $ns2 10.0.1.1
2836 chk_join_nr 2 2 2
2837 chk_prio_nr 1 1 1 1
2838 fi
2839
2840 if reset "mpc switch to backup" &&
2841 continue_if mptcp_lib_kallsyms_doesnt_have "T mptcp_subflow_send_ack$"; then
2842 pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow
2843 sflags=backup speed=slow \
2844 run_tests $ns1 $ns2 10.0.1.1
2845 chk_join_nr 0 0 0
2846 chk_prio_nr 0 1 0 0
2847 fi
2848
2849 if reset "mpc switch to backup both sides" &&
2850 continue_if mptcp_lib_kallsyms_doesnt_have "T mptcp_subflow_send_ack$"; then
2851 pm_nl_add_endpoint $ns1 10.0.1.1 flags subflow
2852 pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow
2853 sflags=backup speed=slow \
2854 run_tests $ns1 $ns2 10.0.1.1
2855 chk_join_nr 0 0 0
2856 chk_prio_nr 1 1 0 0
2857 fi
2858 }
2859
2860 verify_listener_events()
2861 {
2862 local e_type=$2
2863 local e_saddr=$4
2864 local e_sport=$5
2865 local name
2866
2867 if [ $e_type = $MPTCP_LIB_EVENT_LISTENER_CREATED ]; then
2868 name="LISTENER_CREATED"
2869 elif [ $e_type = $MPTCP_LIB_EVENT_LISTENER_CLOSED ]; then
2870 name="LISTENER_CLOSED "
2871 else
2872 name="$e_type"
2873 fi
2874
2875 print_check "$name $e_saddr:$e_sport"
2876
2877 if ! mptcp_lib_kallsyms_has "mptcp_event_pm_listener$"; then
2878 print_skip "event not supported"
2879 return
2880 fi
2881
2882 if mptcp_lib_verify_listener_events "${@}"; then
2883 print_ok
2884 return 0
2885 fi
2886 fail_test
2887 }
2888
2889 chk_mpc_endp_attempt()
2890 {
2891 local retl=$1
2892 local attempts=$2
2893
2894 print_check "Connect"
2895
2896 if [ ${retl} = 124 ]; then
2897 fail_test "timeout on connect"
2898 elif [ ${retl} = 0 ]; then
2899 fail_test "unexpected successful connect"
2900 else
2901 print_ok
2902
2903 print_check "Attempts"
2904 count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPCapableEndpAttempt")
2905 if [ -z "$count" ]; then
2906 print_skip
2907 elif [ "$count" != "$attempts" ]; then
2908 fail_test "got ${count} MPC attempt[s] on port-based endpoint, expected ${attempts}"
2909 else
2910 print_ok
2911 fi
2912 fi
2913 }
2914
2915 add_addr_ports_tests()
2916 {
2917 # signal address with port
2918 if reset "signal address with port"; then
2919 pm_nl_set_limits $ns1 0 1
2920 pm_nl_set_limits $ns2 1 1
2921 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
2922 run_tests $ns1 $ns2 10.0.1.1
2923 chk_join_nr 1 1 1
2924 chk_add_nr 1 1 1
2925 fi
2926
2927 # subflow and signal with port
2928 if reset "subflow and signal with port"; then
2929 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
2930 pm_nl_set_limits $ns1 0 2
2931 pm_nl_set_limits $ns2 1 2
2932 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2933 run_tests $ns1 $ns2 10.0.1.1
2934 chk_join_nr 2 2 2
2935 chk_add_nr 1 1 1
2936 fi
2937
2938 # single address with port, remove
2939 # pm listener events
2940 if reset_with_events "remove single address with port"; then
2941 pm_nl_set_limits $ns1 0 1
2942 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
2943 pm_nl_set_limits $ns2 1 1
2944 addr_nr_ns1=-1 speed=slow \
2945 run_tests $ns1 $ns2 10.0.1.1
2946 chk_join_nr 1 1 1
2947 chk_add_nr 1 1 1
2948 chk_rm_nr 1 1 invert
2949
2950 verify_listener_events $evts_ns1 $MPTCP_LIB_EVENT_LISTENER_CREATED \
2951 $MPTCP_LIB_AF_INET 10.0.2.1 10100
2952 verify_listener_events $evts_ns1 $MPTCP_LIB_EVENT_LISTENER_CLOSED \
2953 $MPTCP_LIB_AF_INET 10.0.2.1 10100
2954 kill_events_pids
2955 fi
2956
2957 # subflow and signal with port, remove
2958 if reset "remove subflow and signal with port"; then
2959 pm_nl_set_limits $ns1 0 2
2960 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
2961 pm_nl_set_limits $ns2 1 2
2962 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2963 addr_nr_ns1=-1 addr_nr_ns2=-1 speed=slow \
2964 run_tests $ns1 $ns2 10.0.1.1
2965 chk_join_nr 2 2 2
2966 chk_add_nr 1 1 1
2967 chk_rm_nr 1 1
2968 fi
2969
2970 # subflows and signal with port, flush
2971 if reset "flush subflows and signal with port"; then
2972 pm_nl_set_limits $ns1 0 3
2973 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
2974 pm_nl_set_limits $ns2 1 3
2975 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2976 pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
2977 addr_nr_ns1=-8 addr_nr_ns2=-2 speed=slow \
2978 run_tests $ns1 $ns2 10.0.1.1
2979 chk_join_nr 3 3 3
2980 chk_add_nr 1 1
2981 chk_rm_nr 1 3 invert simult
2982 fi
2983
2984 # multiple addresses with port
2985 if reset "multiple addresses with port"; then
2986 pm_nl_set_limits $ns1 2 2
2987 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
2988 pm_nl_add_endpoint $ns1 10.0.3.1 flags signal port 10100
2989 pm_nl_set_limits $ns2 2 2
2990 run_tests $ns1 $ns2 10.0.1.1
2991 chk_join_nr 2 2 2
2992 chk_add_nr 2 2 2
2993 fi
2994
2995 # multiple addresses with ports
2996 if reset "multiple addresses with ports"; then
2997 pm_nl_set_limits $ns1 2 2
2998 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
2999 pm_nl_add_endpoint $ns1 10.0.3.1 flags signal port 10101
3000 pm_nl_set_limits $ns2 2 2
3001 run_tests $ns1 $ns2 10.0.1.1
3002 chk_join_nr 2 2 2
3003 chk_add_nr 2 2 2
3004 fi
3005
3006 if reset "port-based signal endpoint must not accept mpc"; then
3007 local port retl count
3008 port=$(get_port)
3009
3010 cond_start_capture ${ns1}
3011 pm_nl_add_endpoint ${ns1} 10.0.2.1 flags signal port ${port}
3012 mptcp_lib_wait_local_port_listen ${ns1} ${port}
3013
3014 timeout 1 ip netns exec ${ns2} \
3015 ./mptcp_connect -t ${timeout_poll} -p $port -s MPTCP 10.0.2.1 >/dev/null 2>&1
3016 retl=$?
3017 cond_stop_capture
3018
3019 chk_mpc_endp_attempt ${retl} 1
3020 fi
3021 }
3022
3023 syncookies_tests()
3024 {
3025 # single subflow, syncookies
3026 if reset_with_cookies "single subflow with syn cookies"; then
3027 pm_nl_set_limits $ns1 0 1
3028 pm_nl_set_limits $ns2 0 1
3029 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
3030 run_tests $ns1 $ns2 10.0.1.1
3031 chk_join_nr 1 1 1
3032 fi
3033
3034 # multiple subflows with syn cookies
3035 if reset_with_cookies "multiple subflows with syn cookies"; then
3036 pm_nl_set_limits $ns1 0 2
3037 pm_nl_set_limits $ns2 0 2
3038 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
3039 pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
3040 run_tests $ns1 $ns2 10.0.1.1
3041 chk_join_nr 2 2 2
3042 fi
3043
3044 # multiple subflows limited by server
3045 if reset_with_cookies "subflows limited by server w cookies"; then
3046 pm_nl_set_limits $ns1 0 1
3047 pm_nl_set_limits $ns2 0 2
3048 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
3049 pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
3050 run_tests $ns1 $ns2 10.0.1.1
3051 chk_join_nr 2 1 1
3052 fi
3053
3054 # test signal address with cookies
3055 if reset_with_cookies "signal address with syn cookies"; then
3056 pm_nl_set_limits $ns1 0 1
3057 pm_nl_set_limits $ns2 1 1
3058 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
3059 run_tests $ns1 $ns2 10.0.1.1
3060 chk_join_nr 1 1 1
3061 chk_add_nr 1 1
3062 fi
3063
3064 # test cookie with subflow and signal
3065 if reset_with_cookies "subflow and signal w cookies"; then
3066 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
3067 pm_nl_set_limits $ns1 0 2
3068 pm_nl_set_limits $ns2 1 2
3069 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
3070 run_tests $ns1 $ns2 10.0.1.1
3071 chk_join_nr 2 2 2
3072 chk_add_nr 1 1
3073 fi
3074
3075 # accept and use add_addr with additional subflows
3076 if reset_with_cookies "subflows and signal w. cookies"; then
3077 pm_nl_set_limits $ns1 0 3
3078 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
3079 pm_nl_set_limits $ns2 1 3
3080 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
3081 pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
3082 run_tests $ns1 $ns2 10.0.1.1
3083 chk_join_nr 3 3 3
3084 chk_add_nr 1 1
3085 fi
3086 }
3087
3088 checksum_tests()
3089 {
3090 local checksum_enable
3091 for checksum_enable in "0 0" "1 1" "0 1" "1 0"; do
3092 # checksum test 0 0, 1 1, 0 1, 1 0
3093 if reset_with_checksum ${checksum_enable}; then
3094 pm_nl_set_limits $ns1 0 1
3095 pm_nl_set_limits $ns2 0 1
3096 run_tests $ns1 $ns2 10.0.1.1
3097 chk_join_nr 0 0 0
3098 fi
3099 done
3100 }
3101
3102 deny_join_id0_tests()
3103 {
3104 # subflow allow join id0 ns1
3105 if reset_with_allow_join_id0 "single subflow allow join id0 ns1" 1 0; then
3106 pm_nl_set_limits $ns1 1 1
3107 pm_nl_set_limits $ns2 1 1
3108 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
3109 run_tests $ns1 $ns2 10.0.1.1
3110 chk_join_nr 1 1 1
3111 fi
3112
3113 # subflow allow join id0 ns2
3114 if reset_with_allow_join_id0 "single subflow allow join id0 ns2" 0 1; then
3115 pm_nl_set_limits $ns1 1 1
3116 pm_nl_set_limits $ns2 1 1
3117 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
3118 run_tests $ns1 $ns2 10.0.1.1
3119 chk_join_nr 0 0 0
3120 fi
3121
3122 # signal address allow join id0 ns1
3123 # ADD_ADDRs are not affected by allow_join_id0 value.
3124 if reset_with_allow_join_id0 "signal address allow join id0 ns1" 1 0; then
3125 pm_nl_set_limits $ns1 1 1
3126 pm_nl_set_limits $ns2 1 1
3127 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
3128 run_tests $ns1 $ns2 10.0.1.1
3129 chk_join_nr 1 1 1
3130 chk_add_nr 1 1
3131 fi
3132
3133 # signal address allow join id0 ns2
3134 # ADD_ADDRs are not affected by allow_join_id0 value.
3135 if reset_with_allow_join_id0 "signal address allow join id0 ns2" 0 1; then
3136 pm_nl_set_limits $ns1 1 1
3137 pm_nl_set_limits $ns2 1 1
3138 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
3139 run_tests $ns1 $ns2 10.0.1.1
3140 chk_join_nr 1 1 1
3141 chk_add_nr 1 1
3142 fi
3143
3144 # subflow and address allow join id0 ns1
3145 if reset_with_allow_join_id0 "subflow and address allow join id0 1" 1 0; then
3146 pm_nl_set_limits $ns1 2 2
3147 pm_nl_set_limits $ns2 2 2
3148 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
3149 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
3150 run_tests $ns1 $ns2 10.0.1.1
3151 chk_join_nr 2 2 2
3152 fi
3153
3154 # subflow and address allow join id0 ns2
3155 if reset_with_allow_join_id0 "subflow and address allow join id0 2" 0 1; then
3156 pm_nl_set_limits $ns1 2 2
3157 pm_nl_set_limits $ns2 2 2
3158 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
3159 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
3160 run_tests $ns1 $ns2 10.0.1.1
3161 chk_join_nr 1 1 1
3162 fi
3163 }
3164
3165 fullmesh_tests()
3166 {
3167 # fullmesh 1
3168 # 2 fullmesh addrs in ns2, added before the connection,
3169 # 1 non-fullmesh addr in ns1, added during the connection.
3170 if reset "fullmesh test 2x1"; then
3171 pm_nl_set_limits $ns1 0 4
3172 pm_nl_set_limits $ns2 1 4
3173 pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow,fullmesh
3174 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,fullmesh
3175 addr_nr_ns1=1 speed=slow \
3176 run_tests $ns1 $ns2 10.0.1.1
3177 chk_join_nr 4 4 4
3178 chk_add_nr 1 1
3179 fi
3180
3181 # fullmesh 2
3182 # 1 non-fullmesh addr in ns1, added before the connection,
3183 # 1 fullmesh addr in ns2, added during the connection.
3184 if reset "fullmesh test 1x1"; then
3185 pm_nl_set_limits $ns1 1 3
3186 pm_nl_set_limits $ns2 1 3
3187 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
3188 if mptcp_lib_kallsyms_has "mptcp_pm_subflow_check_next$"; then
3189 pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow,fullmesh
3190 fi
3191 fullmesh=1 speed=slow \
3192 run_tests $ns1 $ns2 10.0.1.1
3193 chk_join_nr 3 3 3
3194 chk_add_nr 1 1
3195 fi
3196
3197 # fullmesh 3
3198 # 1 non-fullmesh addr in ns1, added before the connection,
3199 # 2 fullmesh addrs in ns2, added during the connection.
3200 if reset "fullmesh test 1x2"; then
3201 pm_nl_set_limits $ns1 2 5
3202 pm_nl_set_limits $ns2 1 5
3203 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
3204 fullmesh=2 speed=slow \
3205 run_tests $ns1 $ns2 10.0.1.1
3206 chk_join_nr 5 5 5
3207 chk_add_nr 1 1
3208 fi
3209
3210 # fullmesh 4
3211 # 1 non-fullmesh addr in ns1, added before the connection,
3212 # 2 fullmesh addrs in ns2, added during the connection,
3213 # limit max_subflows to 4.
3214 if reset "fullmesh test 1x2, limited"; then
3215 pm_nl_set_limits $ns1 2 4
3216 pm_nl_set_limits $ns2 1 4
3217 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
3218 fullmesh=2 speed=slow \
3219 run_tests $ns1 $ns2 10.0.1.1
3220 chk_join_nr 4 4 4
3221 chk_add_nr 1 1
3222 fi
3223
3224 # set fullmesh flag
3225 if reset "set fullmesh flag test" &&
3226 continue_if mptcp_lib_kversion_ge 5.18; then
3227 pm_nl_set_limits $ns1 4 4
3228 pm_nl_add_endpoint $ns1 10.0.2.1 flags subflow
3229 pm_nl_set_limits $ns2 4 4
3230 addr_nr_ns2=1 sflags=fullmesh speed=slow \
3231 run_tests $ns1 $ns2 10.0.1.1
3232 chk_join_nr 2 2 2
3233 chk_rm_nr 0 1
3234 fi
3235
3236 # set nofullmesh flag
3237 if reset "set nofullmesh flag test" &&
3238 continue_if mptcp_lib_kversion_ge 5.18; then
3239 pm_nl_set_limits $ns1 4 4
3240 pm_nl_add_endpoint $ns1 10.0.2.1 flags subflow,fullmesh
3241 pm_nl_set_limits $ns2 4 4
3242 fullmesh=1 sflags=nofullmesh speed=slow \
3243 run_tests $ns1 $ns2 10.0.1.1
3244 chk_join_nr 2 2 2
3245 chk_rm_nr 0 1
3246 fi
3247
3248 # set backup,fullmesh flags
3249 if reset "set backup,fullmesh flags test" &&
3250 continue_if mptcp_lib_kversion_ge 5.18; then
3251 pm_nl_set_limits $ns1 4 4
3252 pm_nl_add_endpoint $ns1 10.0.2.1 flags subflow
3253 pm_nl_set_limits $ns2 4 4
3254 addr_nr_ns2=1 sflags=backup,fullmesh speed=slow \
3255 run_tests $ns1 $ns2 10.0.1.1
3256 chk_join_nr 2 2 2
3257 chk_prio_nr 0 1 1 0
3258 chk_rm_nr 0 1
3259 fi
3260
3261 # set nobackup,nofullmesh flags
3262 if reset "set nobackup,nofullmesh flags test" &&
3263 continue_if mptcp_lib_kversion_ge 5.18; then
3264 pm_nl_set_limits $ns1 4 4
3265 pm_nl_set_limits $ns2 4 4
3266 pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow,backup,fullmesh
3267 sflags=nobackup,nofullmesh speed=slow \
3268 run_tests $ns1 $ns2 10.0.1.1
3269 chk_join_nr 2 2 2
3270 chk_prio_nr 0 1 1 0
3271 chk_rm_nr 0 1
3272 fi
3273 }
3274
3275 fastclose_tests()
3276 {
3277 if reset_check_counter "fastclose test" "MPTcpExtMPFastcloseTx"; then
3278 MPTCP_LIB_SUBTEST_FLAKY=1
3279 test_linkfail=1024 fastclose=client \
3280 run_tests $ns1 $ns2 10.0.1.1
3281 chk_join_nr 0 0 0
3282 chk_fclose_nr 1 1
3283 chk_rst_nr 1 1 invert
3284 fi
3285
3286 if reset_check_counter "fastclose server test" "MPTcpExtMPFastcloseRx"; then
3287 MPTCP_LIB_SUBTEST_FLAKY=1
3288 test_linkfail=1024 fastclose=server \
3289 run_tests $ns1 $ns2 10.0.1.1
3290 join_rst_nr=1 \
3291 chk_join_nr 0 0 0
3292 chk_fclose_nr 1 1 invert
3293 chk_rst_nr 1 1
3294 fi
3295 }
3296
3297 pedit_action_pkts()
3298 {
3299 tc -n $ns2 -j -s action show action pedit index 100 | \
3300 mptcp_lib_get_info_value \"packets\" packets
3301 }
3302
3303 fail_tests()
3304 {
3305 # single subflow
3306 if reset_with_fail "Infinite map" 1; then
3307 MPTCP_LIB_SUBTEST_FLAKY=1
3308 test_linkfail=128 \
3309 run_tests $ns1 $ns2 10.0.1.1
3310 join_csum_ns1=+1 join_csum_ns2=+0 \
3311 join_fail_nr=1 join_rst_nr=0 join_infi_nr=1 \
3312 join_corrupted_pkts="$(pedit_action_pkts)" \
3313 chk_join_nr 0 0 0
3314 chk_fail_nr 1 -1 invert
3315 fi
3316
3317 # multiple subflows
3318 if reset_with_fail "MP_FAIL MP_RST" 2; then
3319 MPTCP_LIB_SUBTEST_FLAKY=1
3320 tc -n $ns2 qdisc add dev ns2eth1 root netem rate 1mbit delay 5ms
3321 pm_nl_set_limits $ns1 0 1
3322 pm_nl_set_limits $ns2 0 1
3323 pm_nl_add_endpoint $ns2 10.0.2.2 dev ns2eth2 flags subflow
3324 test_linkfail=1024 \
3325 run_tests $ns1 $ns2 10.0.1.1
3326 join_csum_ns1=1 join_csum_ns2=0 \
3327 join_fail_nr=1 join_rst_nr=1 join_infi_nr=0 \
3328 join_corrupted_pkts="$(pedit_action_pkts)" \
3329 chk_join_nr 1 1 1
3330 fi
3331 }
3332
3333 # $1: ns ; $2: addr ; $3: id
3334 userspace_pm_add_addr()
3335 {
3336 local evts=$evts_ns1
3337 local tk
3338
3339 [ "$1" == "$ns2" ] && evts=$evts_ns2
3340 tk=$(mptcp_lib_evts_get_info token "$evts")
3341
3342 ip netns exec $1 ./pm_nl_ctl ann $2 token $tk id $3
3343 sleep 1
3344 }
3345
3346 # $1: ns ; $2: id
3347 userspace_pm_rm_addr()
3348 {
3349 local evts=$evts_ns1
3350 local tk
3351 local cnt
3352
3353 [ "$1" == "$ns2" ] && evts=$evts_ns2
3354 tk=$(mptcp_lib_evts_get_info token "$evts")
3355
3356 cnt=$(rm_addr_count ${1})
3357 ip netns exec $1 ./pm_nl_ctl rem token $tk id $2
3358 wait_rm_addr $1 "${cnt}"
3359 }
3360
3361 # $1: ns ; $2: addr ; $3: id
3362 userspace_pm_add_sf()
3363 {
3364 local evts=$evts_ns1
3365 local tk da dp
3366
3367 [ "$1" == "$ns2" ] && evts=$evts_ns2
3368 tk=$(mptcp_lib_evts_get_info token "$evts")
3369 da=$(mptcp_lib_evts_get_info daddr4 "$evts")
3370 dp=$(mptcp_lib_evts_get_info dport "$evts")
3371
3372 ip netns exec $1 ./pm_nl_ctl csf lip $2 lid $3 \
3373 rip $da rport $dp token $tk
3374 sleep 1
3375 }
3376
3377 # $1: ns ; $2: addr $3: event type
3378 userspace_pm_rm_sf()
3379 {
3380 local evts=$evts_ns1
3381 local t=${3:-1}
3382 local ip
3383 local tk da dp sp
3384 local cnt
3385
3386 [ "$1" == "$ns2" ] && evts=$evts_ns2
3387 [ -n "$(mptcp_lib_evts_get_info "saddr4" "$evts" $t)" ] && ip=4
3388 [ -n "$(mptcp_lib_evts_get_info "saddr6" "$evts" $t)" ] && ip=6
3389 tk=$(mptcp_lib_evts_get_info token "$evts")
3390 da=$(mptcp_lib_evts_get_info "daddr$ip" "$evts" $t $2)
3391 dp=$(mptcp_lib_evts_get_info dport "$evts" $t $2)
3392 sp=$(mptcp_lib_evts_get_info sport "$evts" $t $2)
3393
3394 cnt=$(rm_sf_count ${1})
3395 ip netns exec $1 ./pm_nl_ctl dsf lip $2 lport $sp \
3396 rip $da rport $dp token $tk
3397 wait_rm_sf $1 "${cnt}"
3398 }
3399
3400 check_output()
3401 {
3402 local cmd="$1"
3403 local expected="$2"
3404 local msg="$3"
3405 local rc=0
3406
3407 mptcp_lib_check_output "${err}" "${cmd}" "${expected}" || rc=${?}
3408 if [ ${rc} -eq 2 ]; then
3409 fail_test "fail to check output # error ${rc}"
3410 elif [ ${rc} -eq 0 ]; then
3411 print_ok
3412 elif [ ${rc} -eq 1 ]; then
3413 fail_test "fail to check output # different output"
3414 fi
3415 }
3416
3417 # $1: ns
3418 userspace_pm_dump()
3419 {
3420 local evts=$evts_ns1
3421 local tk
3422
3423 [ "$1" == "$ns2" ] && evts=$evts_ns2
3424 tk=$(mptcp_lib_evts_get_info token "$evts")
3425
3426 ip netns exec $1 ./pm_nl_ctl dump token $tk
3427 }
3428
3429 # $1: ns ; $2: id
3430 userspace_pm_get_addr()
3431 {
3432 local evts=$evts_ns1
3433 local tk
3434
3435 [ "$1" == "$ns2" ] && evts=$evts_ns2
3436 tk=$(mptcp_lib_evts_get_info token "$evts")
3437
3438 ip netns exec $1 ./pm_nl_ctl get $2 token $tk
3439 }
3440
3441 userspace_pm_chk_dump_addr()
3442 {
3443 local ns="${1}"
3444 local exp="${2}"
3445 local check="${3}"
3446
3447 print_check "dump addrs ${check}"
3448
3449 if mptcp_lib_kallsyms_has "mptcp_userspace_pm_dump_addr$"; then
3450 check_output "userspace_pm_dump ${ns}" "${exp}"
3451 else
3452 print_skip
3453 fi
3454 }
3455
3456 userspace_pm_chk_get_addr()
3457 {
3458 local ns="${1}"
3459 local id="${2}"
3460 local exp="${3}"
3461
3462 print_check "get id ${id} addr"
3463
3464 if mptcp_lib_kallsyms_has "mptcp_userspace_pm_get_addr$"; then
3465 check_output "userspace_pm_get_addr ${ns} ${id}" "${exp}"
3466 else
3467 print_skip
3468 fi
3469 }
3470
3471 # $1: ns ; $2: event type ; $3: count
3472 chk_evt_nr()
3473 {
3474 local ns=${1}
3475 local evt_name="${2}"
3476 local exp="${3}"
3477
3478 local evts="${evts_ns1}"
3479 local evt="${!evt_name}"
3480 local count
3481
3482 evt_name="${evt_name:16}" # without MPTCP_LIB_EVENT_
3483 [ "${ns}" == "ns2" ] && evts="${evts_ns2}"
3484
3485 print_check "event ${ns} ${evt_name} (${exp})"
3486
3487 if [[ "${evt_name}" = "LISTENER_"* ]] &&
3488 ! mptcp_lib_kallsyms_has "mptcp_event_pm_listener$"; then
3489 print_skip "event not supported"
3490 return
3491 fi
3492
3493 count=$(grep -cw "type:${evt}" "${evts}")
3494 if [ "${count}" != "${exp}" ]; then
3495 fail_test "got ${count} events, expected ${exp}"
3496 else
3497 print_ok
3498 fi
3499 }
3500
3501 userspace_tests()
3502 {
3503 # userspace pm type prevents add_addr
3504 if reset "userspace pm type prevents add_addr" &&
3505 continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
3506 set_userspace_pm $ns1
3507 pm_nl_set_limits $ns1 0 2
3508 pm_nl_set_limits $ns2 0 2
3509 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
3510 run_tests $ns1 $ns2 10.0.1.1
3511 chk_join_nr 0 0 0
3512 chk_add_nr 0 0
3513 fi
3514
3515 # userspace pm type does not echo add_addr without daemon
3516 if reset "userspace pm no echo w/o daemon" &&
3517 continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
3518 set_userspace_pm $ns2
3519 pm_nl_set_limits $ns1 0 2
3520 pm_nl_set_limits $ns2 0 2
3521 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
3522 run_tests $ns1 $ns2 10.0.1.1
3523 chk_join_nr 0 0 0
3524 chk_add_nr 1 0
3525 fi
3526
3527 # userspace pm type rejects join
3528 if reset "userspace pm type rejects join" &&
3529 continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
3530 set_userspace_pm $ns1
3531 pm_nl_set_limits $ns1 1 1
3532 pm_nl_set_limits $ns2 1 1
3533 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
3534 run_tests $ns1 $ns2 10.0.1.1
3535 chk_join_nr 1 1 0
3536 fi
3537
3538 # userspace pm type does not send join
3539 if reset "userspace pm type does not send join" &&
3540 continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
3541 set_userspace_pm $ns2
3542 pm_nl_set_limits $ns1 1 1
3543 pm_nl_set_limits $ns2 1 1
3544 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
3545 run_tests $ns1 $ns2 10.0.1.1
3546 chk_join_nr 0 0 0
3547 fi
3548
3549 # userspace pm type prevents mp_prio
3550 if reset "userspace pm type prevents mp_prio" &&
3551 continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
3552 set_userspace_pm $ns1
3553 pm_nl_set_limits $ns1 1 1
3554 pm_nl_set_limits $ns2 1 1
3555 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
3556 sflags=backup speed=slow \
3557 run_tests $ns1 $ns2 10.0.1.1
3558 chk_join_nr 1 1 0
3559 chk_prio_nr 0 0 0 0
3560 fi
3561
3562 # userspace pm type prevents rm_addr
3563 if reset "userspace pm type prevents rm_addr" &&
3564 continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
3565 set_userspace_pm $ns1
3566 set_userspace_pm $ns2
3567 pm_nl_set_limits $ns1 0 1
3568 pm_nl_set_limits $ns2 0 1
3569 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
3570 addr_nr_ns2=-1 speed=slow \
3571 run_tests $ns1 $ns2 10.0.1.1
3572 chk_join_nr 0 0 0
3573 chk_rm_nr 0 0
3574 fi
3575
3576 # userspace pm add & remove address
3577 if reset_with_events "userspace pm add & remove address" &&
3578 continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
3579 set_userspace_pm $ns1
3580 pm_nl_set_limits $ns2 2 2
3581 { speed=5 \
3582 run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
3583 local tests_pid=$!
3584 wait_mpj $ns1
3585 userspace_pm_add_addr $ns1 10.0.2.1 10
3586 userspace_pm_add_addr $ns1 10.0.3.1 20
3587 chk_join_nr 2 2 2
3588 chk_add_nr 2 2
3589 chk_mptcp_info subflows 2 subflows 2
3590 chk_subflows_total 3 3
3591 chk_mptcp_info add_addr_signal 2 add_addr_accepted 2
3592 userspace_pm_chk_dump_addr "${ns1}" \
3593 $'id 10 flags signal 10.0.2.1\nid 20 flags signal 10.0.3.1' \
3594 "signal"
3595 userspace_pm_chk_get_addr "${ns1}" "10" "id 10 flags signal 10.0.2.1"
3596 userspace_pm_chk_get_addr "${ns1}" "20" "id 20 flags signal 10.0.3.1"
3597 userspace_pm_rm_sf $ns1 "::ffff:10.0.2.1" $MPTCP_LIB_EVENT_SUB_ESTABLISHED
3598 userspace_pm_chk_dump_addr "${ns1}" \
3599 "id 20 flags signal 10.0.3.1" "after rm_sf 10"
3600 userspace_pm_rm_addr $ns1 20
3601 userspace_pm_chk_dump_addr "${ns1}" "" "after rm_addr 20"
3602 chk_rm_nr 1 1 invert
3603 chk_mptcp_info subflows 0 subflows 0
3604 chk_subflows_total 1 1
3605 kill_events_pids
3606 mptcp_lib_kill_wait $tests_pid
3607 fi
3608
3609 # userspace pm create destroy subflow
3610 if reset_with_events "userspace pm create destroy subflow" &&
3611 continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
3612 set_userspace_pm $ns2
3613 pm_nl_set_limits $ns1 0 1
3614 { speed=5 \
3615 run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
3616 local tests_pid=$!
3617 wait_mpj $ns2
3618 userspace_pm_add_sf $ns2 10.0.3.2 20
3619 chk_join_nr 1 1 1
3620 chk_mptcp_info subflows 1 subflows 1
3621 chk_subflows_total 2 2
3622 userspace_pm_chk_dump_addr "${ns2}" \
3623 "id 20 flags subflow 10.0.3.2" \
3624 "subflow"
3625 userspace_pm_chk_get_addr "${ns2}" "20" "id 20 flags subflow 10.0.3.2"
3626 userspace_pm_rm_sf $ns2 10.0.3.2 $MPTCP_LIB_EVENT_SUB_ESTABLISHED
3627 userspace_pm_chk_dump_addr "${ns2}" \
3628 "" \
3629 "after rm_sf 20"
3630 chk_rm_nr 0 1
3631 chk_mptcp_info subflows 0 subflows 0
3632 chk_subflows_total 1 1
3633 kill_events_pids
3634 mptcp_lib_kill_wait $tests_pid
3635 fi
3636
3637 # userspace pm create id 0 subflow
3638 if reset_with_events "userspace pm create id 0 subflow" &&
3639 continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
3640 set_userspace_pm $ns2
3641 pm_nl_set_limits $ns1 0 1
3642 { speed=5 \
3643 run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
3644 local tests_pid=$!
3645 wait_mpj $ns2
3646 chk_mptcp_info subflows 0 subflows 0
3647 chk_subflows_total 1 1
3648 userspace_pm_add_sf $ns2 10.0.3.2 0
3649 userspace_pm_chk_dump_addr "${ns2}" \
3650 "id 0 flags subflow 10.0.3.2" "id 0 subflow"
3651 chk_join_nr 1 1 1
3652 chk_mptcp_info subflows 1 subflows 1
3653 chk_subflows_total 2 2
3654 kill_events_pids
3655 mptcp_lib_kill_wait $tests_pid
3656 fi
3657
3658 # userspace pm remove initial subflow
3659 if reset_with_events "userspace pm remove initial subflow" &&
3660 continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
3661 set_userspace_pm $ns2
3662 pm_nl_set_limits $ns1 0 1
3663 { speed=5 \
3664 run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
3665 local tests_pid=$!
3666 wait_mpj $ns2
3667 userspace_pm_add_sf $ns2 10.0.3.2 20
3668 chk_join_nr 1 1 1
3669 chk_mptcp_info subflows 1 subflows 1
3670 chk_subflows_total 2 2
3671 userspace_pm_rm_sf $ns2 10.0.1.2
3672 # we don't look at the counter linked to the RM_ADDR but
3673 # to the one linked to the subflows that have been removed
3674 chk_rm_nr 0 1
3675 chk_rst_nr 0 0 invert
3676 chk_mptcp_info subflows 1 subflows 1
3677 chk_subflows_total 1 1
3678 kill_events_pids
3679 mptcp_lib_kill_wait $tests_pid
3680 fi
3681
3682 # userspace pm send RM_ADDR for ID 0
3683 if reset_with_events "userspace pm send RM_ADDR for ID 0" &&
3684 continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
3685 set_userspace_pm $ns1
3686 pm_nl_set_limits $ns2 1 1
3687 { speed=5 \
3688 run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
3689 local tests_pid=$!
3690 wait_mpj $ns1
3691 userspace_pm_add_addr $ns1 10.0.2.1 10
3692 chk_join_nr 1 1 1
3693 chk_add_nr 1 1
3694 chk_mptcp_info subflows 1 subflows 1
3695 chk_subflows_total 2 2
3696 chk_mptcp_info add_addr_signal 1 add_addr_accepted 1
3697 userspace_pm_rm_addr $ns1 0
3698 # we don't look at the counter linked to the subflows that
3699 # have been removed but to the one linked to the RM_ADDR
3700 chk_rm_nr 1 0 invert
3701 chk_rst_nr 0 0 invert
3702 chk_mptcp_info subflows 1 subflows 1
3703 chk_subflows_total 1 1
3704 kill_events_pids
3705 mptcp_lib_kill_wait $tests_pid
3706 fi
3707 }
3708
3709 endpoint_tests()
3710 {
3711 # subflow_rebuild_header is needed to support the implicit flag
3712 # userspace pm type prevents add_addr
3713 if reset "implicit EP" &&
3714 mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
3715 pm_nl_set_limits $ns1 2 2
3716 pm_nl_set_limits $ns2 2 2
3717 pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
3718 { speed=slow \
3719 run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
3720 local tests_pid=$!
3721
3722 wait_mpj $ns1
3723 pm_nl_check_endpoint "creation" \
3724 $ns2 10.0.2.2 id 1 flags implicit
3725 chk_mptcp_info subflows 1 subflows 1
3726 chk_mptcp_info add_addr_signal 1 add_addr_accepted 1
3727
3728 pm_nl_add_endpoint $ns2 10.0.2.2 id 33 2>/dev/null
3729 pm_nl_check_endpoint "ID change is prevented" \
3730 $ns2 10.0.2.2 id 1 flags implicit
3731
3732 pm_nl_add_endpoint $ns2 10.0.2.2 flags signal
3733 pm_nl_check_endpoint "modif is allowed" \
3734 $ns2 10.0.2.2 id 1 flags signal
3735 mptcp_lib_kill_wait $tests_pid
3736 fi
3737
3738 if reset_with_tcp_filter "delete and re-add" ns2 10.0.3.2 REJECT OUTPUT &&
3739 mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
3740 start_events
3741 pm_nl_set_limits $ns1 0 3
3742 pm_nl_set_limits $ns2 0 3
3743 pm_nl_add_endpoint $ns2 10.0.1.2 id 1 dev ns2eth1 flags subflow
3744 pm_nl_add_endpoint $ns2 10.0.2.2 id 2 dev ns2eth2 flags subflow
3745 { test_linkfail=4 speed=5 \
3746 run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
3747 local tests_pid=$!
3748
3749 wait_mpj $ns2
3750 pm_nl_check_endpoint "creation" \
3751 $ns2 10.0.2.2 id 2 flags subflow dev ns2eth2
3752 chk_subflow_nr "before delete id 2" 2
3753 chk_mptcp_info subflows 1 subflows 1
3754
3755 pm_nl_del_endpoint $ns2 2 10.0.2.2
3756 sleep 0.5
3757 chk_subflow_nr "after delete id 2" 1
3758 chk_mptcp_info subflows 0 subflows 0
3759
3760 pm_nl_add_endpoint $ns2 10.0.2.2 id 2 dev ns2eth2 flags subflow
3761 wait_mpj $ns2
3762 chk_subflow_nr "after re-add id 2" 2
3763 chk_mptcp_info subflows 1 subflows 1
3764
3765 pm_nl_add_endpoint $ns2 10.0.3.2 id 3 flags subflow
3766 wait_attempt_fail $ns2
3767 chk_subflow_nr "after new reject" 2
3768 chk_mptcp_info subflows 1 subflows 1
3769
3770 ip netns exec "${ns2}" ${iptables} -D OUTPUT -s "10.0.3.2" -p tcp -j REJECT
3771 pm_nl_del_endpoint $ns2 3 10.0.3.2
3772 pm_nl_add_endpoint $ns2 10.0.3.2 id 3 flags subflow
3773 wait_mpj $ns2
3774 chk_subflow_nr "after no reject" 3
3775 chk_mptcp_info subflows 2 subflows 2
3776
3777 local i
3778 for i in $(seq 3); do
3779 pm_nl_del_endpoint $ns2 1 10.0.1.2
3780 sleep 0.5
3781 chk_subflow_nr "after delete id 0 ($i)" 2
3782 chk_mptcp_info subflows 2 subflows 2 # only decr for additional sf
3783
3784 pm_nl_add_endpoint $ns2 10.0.1.2 id 1 dev ns2eth1 flags subflow
3785 wait_mpj $ns2
3786 chk_subflow_nr "after re-add id 0 ($i)" 3
3787 chk_mptcp_info subflows 3 subflows 3
3788 done
3789
3790 mptcp_lib_kill_wait $tests_pid
3791
3792 kill_events_pids
3793 chk_evt_nr ns1 MPTCP_LIB_EVENT_LISTENER_CREATED 1
3794 chk_evt_nr ns1 MPTCP_LIB_EVENT_CREATED 1
3795 chk_evt_nr ns1 MPTCP_LIB_EVENT_ESTABLISHED 1
3796 chk_evt_nr ns1 MPTCP_LIB_EVENT_ANNOUNCED 0
3797 chk_evt_nr ns1 MPTCP_LIB_EVENT_REMOVED 4
3798 chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_ESTABLISHED 6
3799 chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_CLOSED 4
3800
3801 chk_evt_nr ns2 MPTCP_LIB_EVENT_CREATED 1
3802 chk_evt_nr ns2 MPTCP_LIB_EVENT_ESTABLISHED 1
3803 chk_evt_nr ns2 MPTCP_LIB_EVENT_ANNOUNCED 0
3804 chk_evt_nr ns2 MPTCP_LIB_EVENT_REMOVED 0
3805 chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_ESTABLISHED 6
3806 chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_CLOSED 5 # one has been closed before estab
3807
3808 join_syn_tx=7 \
3809 chk_join_nr 6 6 6
3810 chk_rm_nr 4 4
3811 fi
3812
3813 # remove and re-add
3814 if reset_with_events "delete re-add signal" &&
3815 mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
3816 pm_nl_set_limits $ns1 0 3
3817 pm_nl_set_limits $ns2 3 3
3818 pm_nl_add_endpoint $ns1 10.0.2.1 id 1 flags signal
3819 # broadcast IP: no packet for this address will be received on ns1
3820 pm_nl_add_endpoint $ns1 224.0.0.1 id 2 flags signal
3821 pm_nl_add_endpoint $ns1 10.0.1.1 id 42 flags signal
3822 { test_linkfail=4 speed=5 \
3823 run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
3824 local tests_pid=$!
3825
3826 wait_mpj $ns2
3827 pm_nl_check_endpoint "creation" \
3828 $ns1 10.0.2.1 id 1 flags signal
3829 chk_subflow_nr "before delete" 2
3830 chk_mptcp_info subflows 1 subflows 1
3831
3832 pm_nl_del_endpoint $ns1 1 10.0.2.1
3833 pm_nl_del_endpoint $ns1 2 224.0.0.1
3834 sleep 0.5
3835 chk_subflow_nr "after delete" 1
3836 chk_mptcp_info subflows 0 subflows 0
3837
3838 pm_nl_add_endpoint $ns1 10.0.2.1 id 1 flags signal
3839 pm_nl_add_endpoint $ns1 10.0.3.1 id 2 flags signal
3840 wait_mpj $ns2
3841 chk_subflow_nr "after re-add" 3
3842 chk_mptcp_info subflows 2 subflows 2
3843
3844 pm_nl_del_endpoint $ns1 42 10.0.1.1
3845 sleep 0.5
3846 chk_subflow_nr "after delete ID 0" 2
3847 chk_mptcp_info subflows 2 subflows 2
3848
3849 pm_nl_add_endpoint $ns1 10.0.1.1 id 99 flags signal
3850 wait_mpj $ns2
3851 chk_subflow_nr "after re-add ID 0" 3
3852 chk_mptcp_info subflows 3 subflows 3
3853
3854 pm_nl_del_endpoint $ns1 99 10.0.1.1
3855 sleep 0.5
3856 chk_subflow_nr "after re-delete ID 0" 2
3857 chk_mptcp_info subflows 2 subflows 2
3858
3859 pm_nl_add_endpoint $ns1 10.0.1.1 id 88 flags signal
3860 wait_mpj $ns2
3861 chk_subflow_nr "after re-re-add ID 0" 3
3862 chk_mptcp_info subflows 3 subflows 3
3863 mptcp_lib_kill_wait $tests_pid
3864
3865 kill_events_pids
3866 chk_evt_nr ns1 MPTCP_LIB_EVENT_LISTENER_CREATED 1
3867 chk_evt_nr ns1 MPTCP_LIB_EVENT_CREATED 1
3868 chk_evt_nr ns1 MPTCP_LIB_EVENT_ESTABLISHED 1
3869 chk_evt_nr ns1 MPTCP_LIB_EVENT_ANNOUNCED 0
3870 chk_evt_nr ns1 MPTCP_LIB_EVENT_REMOVED 0
3871 chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_ESTABLISHED 5
3872 chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_CLOSED 3
3873
3874 chk_evt_nr ns2 MPTCP_LIB_EVENT_CREATED 1
3875 chk_evt_nr ns2 MPTCP_LIB_EVENT_ESTABLISHED 1
3876 chk_evt_nr ns2 MPTCP_LIB_EVENT_ANNOUNCED 6
3877 chk_evt_nr ns2 MPTCP_LIB_EVENT_REMOVED 4
3878 chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_ESTABLISHED 5
3879 chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_CLOSED 3
3880
3881 join_connect_err=1 \
3882 chk_join_nr 5 5 5
3883 chk_add_nr 6 6
3884 chk_rm_nr 4 3 invert
3885 fi
3886
3887 # flush and re-add
3888 if reset_with_tcp_filter "flush re-add" ns2 10.0.3.2 REJECT OUTPUT &&
3889 mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
3890 pm_nl_set_limits $ns1 0 2
3891 pm_nl_set_limits $ns2 1 2
3892 # broadcast IP: no packet for this address will be received on ns1
3893 pm_nl_add_endpoint $ns1 224.0.0.1 id 2 flags signal
3894 pm_nl_add_endpoint $ns2 10.0.3.2 id 3 flags subflow
3895 { test_linkfail=4 speed=20 \
3896 run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
3897 local tests_pid=$!
3898
3899 wait_attempt_fail $ns2
3900 chk_subflow_nr "before flush" 1
3901 chk_mptcp_info subflows 0 subflows 0
3902
3903 pm_nl_flush_endpoint $ns2
3904 pm_nl_flush_endpoint $ns1
3905 wait_rm_addr $ns2 0
3906 ip netns exec "${ns2}" ${iptables} -D OUTPUT -s "10.0.3.2" -p tcp -j REJECT
3907 pm_nl_add_endpoint $ns2 10.0.3.2 id 3 flags subflow
3908 wait_mpj $ns2
3909 pm_nl_add_endpoint $ns1 10.0.3.1 id 2 flags signal
3910 wait_mpj $ns2
3911 mptcp_lib_kill_wait $tests_pid
3912
3913 join_syn_tx=3 join_connect_err=1 \
3914 chk_join_nr 2 2 2
3915 chk_add_nr 2 2
3916 chk_rm_nr 1 0 invert
3917 fi
3918 }
3919
3920 # [$1: error message]
3921 usage()
3922 {
3923 if [ -n "${1}" ]; then
3924 echo "${1}"
3925 ret=${KSFT_FAIL}
3926 fi
3927
3928 echo "mptcp_join usage:"
3929
3930 local key
3931 for key in "${!all_tests[@]}"; do
3932 echo " -${key} ${all_tests[${key}]}"
3933 done
3934
3935 echo " -c capture pcap files"
3936 echo " -C enable data checksum"
3937 echo " -i use ip mptcp"
3938 echo " -h help"
3939
3940 echo "[test ids|names]"
3941
3942 exit ${ret}
3943 }
3944
3945
3946 # Use a "simple" array to force an specific order we cannot have with an associative one
3947 all_tests_sorted=(
3948 f@subflows_tests
3949 e@subflows_error_tests
3950 s@signal_address_tests
3951 l@link_failure_tests
3952 t@add_addr_timeout_tests
3953 r@remove_tests
3954 a@add_tests
3955 6@ipv6_tests
3956 4@v4mapped_tests
3957 M@mixed_tests
3958 b@backup_tests
3959 p@add_addr_ports_tests
3960 k@syncookies_tests
3961 S@checksum_tests
3962 d@deny_join_id0_tests
3963 m@fullmesh_tests
3964 z@fastclose_tests
3965 F@fail_tests
3966 u@userspace_tests
3967 I@endpoint_tests
3968 )
3969
3970 all_tests_args=""
3971 all_tests_names=()
3972 for subtests in "${all_tests_sorted[@]}"; do
3973 key="${subtests%@*}"
3974 value="${subtests#*@}"
3975
3976 all_tests_args+="${key}"
3977 all_tests_names+=("${value}")
3978 all_tests[${key}]="${value}"
3979 done
3980
3981 tests=()
3982 while getopts "${all_tests_args}cCih" opt; do
3983 case $opt in
3984 ["${all_tests_args}"])
3985 tests+=("${all_tests[${opt}]}")
3986 ;;
3987 c)
3988 capture=true
3989 ;;
3990 C)
3991 checksum=true
3992 ;;
3993 i)
3994 mptcp_lib_set_ip_mptcp
3995 ;;
3996 h)
3997 usage
3998 ;;
3999 *)
4000 usage "Unknown option: -${opt}"
4001 ;;
4002 esac
4003 done
4004
4005 shift $((OPTIND - 1))
4006
4007 for arg in "${@}"; do
4008 if [[ "${arg}" =~ ^[0-9]+$ ]]; then
4009 only_tests_ids+=("${arg}")
4010 else
4011 only_tests_names+=("${arg}")
4012 fi
4013 done
4014
4015 if [ ${#tests[@]} -eq 0 ]; then
4016 tests=("${all_tests_names[@]}")
4017 fi
4018
4019 mptcp_lib_subtests_last_ts_reset
4020 for subtests in "${tests[@]}"; do
4021 "${subtests}"
4022 done
4023 append_prev_results
4024
4025 if [ ${ret} -ne 0 ]; then
4026 echo
4027 echo "${#failed_tests[@]} failure(s) has(ve) been detected:"
4028 for i in $(get_failed_tests_ids); do
4029 echo -e "\t- ${i}: ${failed_tests[${i}]}"
4030 done
4031 echo
4032 fi
4033
4034 mptcp_lib_result_print_all_tap
4035
4036 exit $ret
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