2 # SPDX-License-Identifier: GPL-2.0
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
9 . "$(dirname "${0}")/mptcp_lib.sh"
11 time_start=$(date +%s)
13 optstring="S:R:d:e:l:r:h4cm:f:tC"
23 timeout_test=$((timeout_poll * 2 + 1))
25 ethtool_random_on=true
26 tc_delay="$((RANDOM%50))"
27 tc_loss=$((RANDOM%101))
35 connect_per_transfer=1
38 if [ $tc_loss -eq 100 ];then
40 elif [ $tc_loss -ge 10 ]; then
42 elif [ $tc_loss -ge 1 ]; then
49 echo "Usage: $0 [ -a ]"
50 echo -e "\t-d: tc/netem delay in milliseconds, e.g. \"-d 10\" (default random)"
51 echo -e "\t-l: tc/netem loss percentage, e.g. \"-l 0.02\" (default random)"
52 echo -e "\t-r: tc/netem reorder mode, e.g. \"-r 25% 50% gap 5\", use "-r 0" to disable reordering (default random)"
53 echo -e "\t-e: ethtool features to disable, e.g.: \"-e tso -e gso\" (default: randomly disable any of tso/gso/gro)"
54 echo -e "\t-4: IPv4 only: disable IPv6 tests (default: test both IPv4 and IPv6)"
55 echo -e "\t-c: capture packets for each test using tcpdump (default: no capture)"
56 echo -e "\t-f: size of file to transfer in bytes (default random)"
57 echo -e "\t-S: set sndbuf value (default: use kernel default)"
58 echo -e "\t-R: set rcvbuf value (default: use kernel default)"
59 echo -e "\t-m: test mode (poll, sendfile; default: poll)"
60 echo -e "\t-t: also run tests with TCP (use twice to non-fallback tcp)"
61 echo -e "\t-C: enable the MPTCP data checksum"
64 while getopts "$optstring" option;do
71 if [ $OPTARG -ge 0 ];then
74 echo "-d requires numeric argument, got \"$OPTARG\"" 1>&2
79 ethtool_args="$ethtool_args $OPTARG off"
80 ethtool_random_on=false
95 if [ $OPTARG -ge 0 ];then
98 echo "-S requires numeric argument, got \"$OPTARG\"" 1>&2
103 if [ $OPTARG -ge 0 ];then
106 echo "-R requires numeric argument, got \"$OPTARG\"" 1>&2
136 # This function is used in the cleanup trap
137 #shellcheck disable=SC2317
140 rm -f "$cin_disconnect" "$cout_disconnect"
145 mptcp_lib_ns_exit "${ns1}" "${ns2}" "${ns3}" "${ns4}"
148 mptcp_lib_check_mptcp
149 mptcp_lib_check_kallsyms
150 mptcp_lib_check_tools ip
157 cin_disconnect="$cin".disconnect
158 cout_disconnect="$cout".disconnect
161 mptcp_lib_ns_init ns1 ns2 ns3 ns4
164 # ns1eth2 ns2eth1 ns2eth3 ns3eth2 ns3eth4 ns4eth3
165 # - drop 1% -> reorder 25%
168 ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth1 netns "$ns2"
169 ip link add ns2eth3 netns "$ns2" type veth peer name ns3eth2 netns "$ns3"
170 ip link add ns3eth4 netns "$ns3" type veth peer name ns4eth3 netns "$ns4"
172 ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth2
173 ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth2 nodad
175 ip -net "$ns1" link set ns1eth2 up
176 ip -net "$ns1" route add default via 10.0.1.2
177 ip -net "$ns1" route add default via dead:beef:1::2
179 ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1
180 ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad
181 ip -net "$ns2" link set ns2eth1 up
183 ip -net "$ns2" addr add 10.0.2.1/24 dev ns2eth3
184 ip -net "$ns2" addr add dead:beef:2::1/64 dev ns2eth3 nodad
185 ip -net "$ns2" link set ns2eth3 up
186 ip -net "$ns2" route add default via 10.0.2.2
187 ip -net "$ns2" route add default via dead:beef:2::2
188 ip netns exec "$ns2" sysctl -q net.ipv4.ip_forward=1
189 ip netns exec "$ns2" sysctl -q net.ipv6.conf.all.forwarding=1
191 ip -net "$ns3" addr add 10.0.2.2/24 dev ns3eth2
192 ip -net "$ns3" addr add dead:beef:2::2/64 dev ns3eth2 nodad
193 ip -net "$ns3" link set ns3eth2 up
195 ip -net "$ns3" addr add 10.0.3.2/24 dev ns3eth4
196 ip -net "$ns3" addr add dead:beef:3::2/64 dev ns3eth4 nodad
197 ip -net "$ns3" link set ns3eth4 up
198 ip -net "$ns3" route add default via 10.0.2.1
199 ip -net "$ns3" route add default via dead:beef:2::1
200 ip netns exec "$ns3" sysctl -q net.ipv4.ip_forward=1
201 ip netns exec "$ns3" sysctl -q net.ipv6.conf.all.forwarding=1
203 ip -net "$ns4" addr add 10.0.3.1/24 dev ns4eth3
204 ip -net "$ns4" addr add dead:beef:3::1/64 dev ns4eth3 nodad
205 ip -net "$ns4" link set ns4eth3 up
206 ip -net "$ns4" route add default via 10.0.3.2
207 ip -net "$ns4" route add default via dead:beef:3::2
210 for i in "$ns1" "$ns2" "$ns3" "$ns4";do
211 ip netns exec $i sysctl -q net.mptcp.checksum_enabled=1
215 set_ethtool_flags() {
220 if ip netns exec $ns ethtool -K $dev $flags 2>/dev/null; then
221 mptcp_lib_pr_info "set $ns dev $dev: ethtool -K $flags"
225 set_random_ethtool_flags() {
229 local pick1=$((r & 1))
230 local pick2=$((r & 2))
231 local pick3=$((r & 4))
233 [ $pick1 -ne 0 ] && flags="tso off"
234 [ $pick2 -ne 0 ] && flags="$flags gso off"
235 [ $pick3 -ne 0 ] && flags="$flags gro off"
237 [ -z "$flags" ] && return
239 set_ethtool_flags "$1" "$2" "$flags"
242 if $ethtool_random_on;then
243 set_random_ethtool_flags "$ns3" ns3eth2
244 set_random_ethtool_flags "$ns4" ns4eth3
246 set_ethtool_flags "$ns3" ns3eth2 "$ethtool_args"
247 set_ethtool_flags "$ns4" ns4eth3 "$ethtool_args"
250 print_larger_title() {
251 # here we don't have the time, a bit longer for the alignment
252 MPTCP_LIB_TEST_FORMAT="%02u %-69s" \
253 mptcp_lib_print_title "${@}"
256 check_mptcp_disabled()
259 mptcp_lib_ns_init disabled_ns
261 print_larger_title "New MPTCP socket can be blocked via sysctl"
262 # net.mptcp.enabled should be enabled by default
263 if [ "$(ip netns exec ${disabled_ns} sysctl net.mptcp.enabled | awk '{ print $3 }')" -ne 1 ]; then
264 mptcp_lib_pr_fail "net.mptcp.enabled sysctl is not 1 by default"
265 mptcp_lib_result_fail "net.mptcp.enabled sysctl is not 1 by default"
269 ip netns exec ${disabled_ns} sysctl -q net.mptcp.enabled=0
272 LC_ALL=C ip netns exec ${disabled_ns} ./mptcp_connect -p 10000 -s MPTCP 127.0.0.1 < "$cin" 2>&1 | \
273 grep -q "^socket: Protocol not available$" && err=1
274 mptcp_lib_ns_exit "${disabled_ns}"
276 if [ ${err} -eq 0 ]; then
277 mptcp_lib_pr_fail "New MPTCP socket cannot be blocked via sysctl"
278 mptcp_lib_result_fail "New MPTCP socket cannot be blocked via sysctl"
284 mptcp_lib_result_pass "New MPTCP socket can be blocked via sysctl"
290 local listener_ns="$1"
291 local connector_ns="$2"
292 local connect_addr="$3"
293 local ping_args="-q -c 1"
296 if mptcp_lib_is_v6 "${connect_addr}"; then
298 ping_args="${ping_args} -6"
301 ip netns exec ${connector_ns} ping ${ping_args} $connect_addr >/dev/null || rc=1
303 if [ $rc -ne 0 ] ; then
304 mptcp_lib_pr_fail "$listener_ns -> $connect_addr connectivity"
315 local listener_ns="$1"
316 local connector_ns="$2"
319 local connect_addr="$5"
320 local local_addr="$6"
321 local extra_args="$7"
325 if [ "$rcvbuf" -gt 0 ]; then
326 extra_args+=" -R $rcvbuf"
329 if [ "$sndbuf" -gt 0 ]; then
330 extra_args+=" -S $sndbuf"
333 if [ -n "$testmode" ]; then
334 extra_args+=" -m $testmode"
337 if [ -n "$extra_args" ] && $options_log; then
338 mptcp_lib_pr_info "extra options: $extra_args"
347 addr_port=$(printf "%s:%d" ${connect_addr} ${port})
349 result_msg="$(printf "%.3s %-5s -> %.3s (%-20s) %-5s" ${connector_ns} ${cl_proto} ${listener_ns} ${addr_port} ${srv_proto})"
350 mptcp_lib_print_title "${result_msg}"
354 local rndh="${connector_ns:4}"
355 if [ -z $SUDO_USER ] ; then
358 capuser="-Z $SUDO_USER"
361 local capfile="${rndh}-${connector_ns:0:3}-${listener_ns:0:3}-${cl_proto}-${srv_proto}-${connect_addr}-${port}"
362 local capopt="-i any -s 65535 -B 32768 ${capuser}"
364 ip netns exec ${listener_ns} tcpdump ${capopt} -w "${capfile}-listener.pcap" >> "${capout}" 2>&1 &
365 local cappid_listener=$!
367 ip netns exec ${connector_ns} tcpdump ${capopt} -w "${capfile}-connector.pcap" >> "${capout}" 2>&1 &
368 local cappid_connector=$!
373 NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \
375 if [ ${listener_ns} != ${connector_ns} ]; then
376 NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \
380 local stat_synrx_last_l
381 local stat_ackrx_last_l
382 local stat_cookietx_last
383 local stat_cookierx_last
384 local stat_csum_err_s
385 local stat_csum_err_c
386 local stat_tcpfb_last_l
387 stat_synrx_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX")
388 stat_ackrx_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableACKRX")
389 stat_cookietx_last=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesSent")
390 stat_cookierx_last=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesRecv")
391 stat_csum_err_s=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtDataCsumErr")
392 stat_csum_err_c=$(mptcp_lib_get_counter "${connector_ns}" "MPTcpExtDataCsumErr")
393 stat_tcpfb_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableFallbackACK")
395 timeout ${timeout_test} \
396 ip netns exec ${listener_ns} \
397 ./mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \
398 $extra_args $local_addr < "$sin" > "$sout" &
401 mptcp_lib_wait_local_port_listen "${listener_ns}" "${port}"
405 timeout ${timeout_test} \
406 ip netns exec ${connector_ns} \
407 ./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
408 $extra_args $connect_addr < "$cin" > "$cout" &
421 kill ${cappid_listener}
422 kill ${cappid_connector}
425 NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \
426 nstat | grep Tcp > /tmp/${listener_ns}.out
427 if [ ${listener_ns} != ${connector_ns} ]; then
428 NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \
429 nstat | grep Tcp > /tmp/${connector_ns}.out
433 duration=$((stop-start))
434 result_msg+=" # time=${duration}ms"
435 printf "(duration %05sms) " "${duration}"
436 if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
437 mptcp_lib_pr_fail "client exit code $retc, server $rets"
438 echo -e "\nnetns ${listener_ns} socket stat for ${port}:" 1>&2
439 ip netns exec ${listener_ns} ss -Menita 1>&2 -o "sport = :$port"
440 cat /tmp/${listener_ns}.out
441 echo -e "\nnetns ${connector_ns} socket stat for ${port}:" 1>&2
442 ip netns exec ${connector_ns} ss -Menita 1>&2 -o "dport = :$port"
443 [ ${listener_ns} != ${connector_ns} ] && cat /tmp/${connector_ns}.out
447 mptcp_lib_result_fail "${TEST_GROUP}: ${result_msg}"
451 mptcp_lib_check_transfer $sin $cout "file received by client"
453 mptcp_lib_check_transfer $cin $sout "file received by server"
457 local stat_synrx_now_l
458 local stat_ackrx_now_l
459 local stat_cookietx_now
460 local stat_cookierx_now
462 local stat_tcpfb_now_l
463 stat_synrx_now_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX")
464 stat_ackrx_now_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableACKRX")
465 stat_cookietx_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesSent")
466 stat_cookierx_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesRecv")
467 stat_ooo_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtTCPOFOQueue")
468 stat_tcpfb_now_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableFallbackACK")
470 expect_synrx=$((stat_synrx_last_l))
471 expect_ackrx=$((stat_ackrx_last_l))
473 cookies=$(ip netns exec ${listener_ns} sysctl net.ipv4.tcp_syncookies)
474 cookies=${cookies##*=}
476 if [ ${cl_proto} = "MPTCP" ] && [ ${srv_proto} = "MPTCP" ]; then
477 expect_synrx=$((stat_synrx_last_l+connect_per_transfer))
478 expect_ackrx=$((stat_ackrx_last_l+connect_per_transfer))
481 if [ ${stat_synrx_now_l} -lt ${expect_synrx} ]; then
482 mptcp_lib_pr_fail "lower MPC SYN rx (${stat_synrx_now_l})" \
483 "than expected (${expect_synrx})"
486 if [ ${stat_ackrx_now_l} -lt ${expect_ackrx} ] && [ ${stat_ooo_now} -eq 0 ]; then
487 if [ ${stat_ooo_now} -eq 0 ]; then
488 mptcp_lib_pr_fail "lower MPC ACK rx (${stat_ackrx_now_l})" \
489 "than expected (${expect_ackrx})"
492 extra+=" [ Note ] fallback due to TCP OoO"
499 csum_err_s=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtDataCsumErr")
500 csum_err_c=$(mptcp_lib_get_counter "${connector_ns}" "MPTcpExtDataCsumErr")
502 local csum_err_s_nr=$((csum_err_s - stat_csum_err_s))
503 if [ $csum_err_s_nr -gt 0 ]; then
504 mptcp_lib_pr_fail "server got ${csum_err_s_nr} data checksum error[s]"
508 local csum_err_c_nr=$((csum_err_c - stat_csum_err_c))
509 if [ $csum_err_c_nr -gt 0 ]; then
510 mptcp_lib_pr_fail "client got ${csum_err_c_nr} data checksum error[s]"
515 if [ ${stat_ooo_now} -eq 0 ] && [ ${stat_tcpfb_last_l} -ne ${stat_tcpfb_now_l} ]; then
516 mptcp_lib_pr_fail "unexpected fallback to TCP"
520 if [ $cookies -eq 2 ];then
521 if [ $stat_cookietx_last -ge $stat_cookietx_now ] ;then
522 extra+=" WARN: CookieSent: did not advance"
524 if [ $stat_cookierx_last -ge $stat_cookierx_now ] ;then
525 extra+=" WARN: CookieRecv: did not advance"
528 if [ $stat_cookietx_last -ne $stat_cookietx_now ] ;then
529 extra+=" WARN: CookieSent: changed"
531 if [ $stat_cookierx_last -ne $stat_cookierx_now ] ;then
532 extra+=" WARN: CookieRecv: changed"
536 if [ ${stat_synrx_now_l} -gt ${expect_synrx} ]; then
537 extra+=" WARN: SYNRX: expect ${expect_synrx},"
538 extra+=" got ${stat_synrx_now_l} (probably retransmissions)"
540 if [ ${stat_ackrx_now_l} -gt ${expect_ackrx} ]; then
541 extra+=" WARN: ACKRX: expect ${expect_ackrx},"
542 extra+=" got ${stat_ackrx_now_l} (probably retransmissions)"
545 if [ $retc -eq 0 ] && [ $rets -eq 0 ]; then
546 mptcp_lib_pr_ok "${extra:1}"
547 mptcp_lib_result_pass "${TEST_GROUP}: ${result_msg}"
549 if [ -n "${extra}" ]; then
550 mptcp_lib_print_warn "${extra:1}"
552 mptcp_lib_result_fail "${TEST_GROUP}: ${result_msg}"
556 [ $retc -eq 0 ] && [ $rets -eq 0 ]
567 if [ $SIZE -eq 0 ]; then
568 local MAXSIZE=$((1024 * 1024 * 8))
569 local MINSIZE=$((1024 * 256))
571 SIZE=$(((RANDOM * RANDOM + MINSIZE) % MAXSIZE))
574 ksize=$((SIZE / 1024))
575 rem=$((SIZE - (ksize * 1024)))
577 mptcp_lib_make_file $name 1024 $ksize
578 dd if=/dev/urandom conv=notrunc of="$name" oflag=append bs=1 count=$rem 2> /dev/null
580 echo "Created $name (size $(du -b "$name")) containing data sent by $who"
585 local listener_ns="$1"
586 local connector_ns="$2"
587 local connect_addr="$3"
589 local extra_args="$5"
592 # skip if test programs are running inside same netns for subsequent runs.
593 if [ $loopback -eq 0 ] && [ ${listener_ns} = ${connector_ns} ]; then
597 # skip if we don't want v6
598 if ! $ipv6 && mptcp_lib_is_v6 "${connect_addr}"; then
603 if mptcp_lib_is_v6 "${connect_addr}"; then
609 do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \
610 ${connect_addr} ${local_addr} "${extra_args}"
612 if [ $lret -ne 0 ]; then
617 if [ $do_tcp -eq 0 ]; then
618 # don't bother testing fallback tcp except for loopback case.
619 if [ ${listener_ns} != ${connector_ns} ]; then
624 do_transfer ${listener_ns} ${connector_ns} MPTCP TCP \
625 ${connect_addr} ${local_addr} "${extra_args}"
627 if [ $lret -ne 0 ]; then
632 do_transfer ${listener_ns} ${connector_ns} TCP MPTCP \
633 ${connect_addr} ${local_addr} "${extra_args}"
635 if [ $lret -ne 0 ]; then
640 if [ $do_tcp -gt 1 ] ;then
641 do_transfer ${listener_ns} ${connector_ns} TCP TCP \
642 ${connect_addr} ${local_addr} "${extra_args}"
644 if [ $lret -ne 0 ]; then
655 run_tests_lo $1 $2 $3 0
658 run_test_transparent()
660 local connect_addr="$1"
663 local connector_ns="$ns1"
664 local listener_ns="$ns2"
670 # skip if we don't want v6
671 if ! $ipv6 && mptcp_lib_is_v6 "${connect_addr}"; then
675 # IP(V6)_TRANSPARENT has been added after TOS support which came with
676 # the required infrastructure in MPTCP sockopt code. To support TOS, the
677 # following function has been exported (T). Not great but better than
678 # checking for a specific kernel version.
679 if ! mptcp_lib_kallsyms_has "T __ip_sock_set_tos$"; then
680 mptcp_lib_pr_skip "${msg} not supported by the kernel"
681 mptcp_lib_result_skip "${TEST_GROUP}"
685 if ! ip netns exec "$listener_ns" nft -f /dev/stdin <<"EOF"
689 type filter hook prerouting priority -150;
691 meta l4proto tcp socket transparent 1 meta mark set 1 accept
692 tcp dport 20000 tproxy to :20000 meta mark set 1 accept
697 mptcp_lib_pr_skip "$msg, could not load nft ruleset"
698 mptcp_lib_fail_if_expected_feature "nft rules"
699 mptcp_lib_result_skip "${TEST_GROUP}"
704 if mptcp_lib_is_v6 "${connect_addr}"; then
711 if ! ip -net "$listener_ns" $r6flag rule add fwmark 1 lookup 100; then
712 ip netns exec "$listener_ns" nft flush ruleset
713 mptcp_lib_pr_skip "$msg, ip $r6flag rule failed"
714 mptcp_lib_fail_if_expected_feature "ip rule"
715 mptcp_lib_result_skip "${TEST_GROUP}"
719 if ! ip -net "$listener_ns" route add local $local_addr/0 dev lo table 100; then
720 ip netns exec "$listener_ns" nft flush ruleset
721 ip -net "$listener_ns" $r6flag rule del fwmark 1 lookup 100
722 mptcp_lib_pr_skip "$msg, ip route add local $local_addr failed"
723 mptcp_lib_fail_if_expected_feature "ip route"
724 mptcp_lib_result_skip "${TEST_GROUP}"
728 mptcp_lib_pr_info "test $msg"
731 local extra_args="-o TRANSPARENT"
732 do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \
733 ${connect_addr} ${local_addr} "${extra_args}"
736 ip netns exec "$listener_ns" nft flush ruleset
737 ip -net "$listener_ns" $r6flag rule del fwmark 1 lookup 100
738 ip -net "$listener_ns" route del local $local_addr/0 dev lo table 100
740 if [ $lret -ne 0 ]; then
741 mptcp_lib_pr_fail "$msg, mptcp connection error"
746 mptcp_lib_pr_info "$msg pass"
754 TEST_GROUP="peek mode: ${peekmode}"
755 mptcp_lib_pr_info "with peek mode: ${peekmode}"
756 run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 "-P ${peekmode}"
757 run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-P ${peekmode}"
764 if ! mptcp_lib_kallsyms_has "mptcp_fastopen_"; then
765 mptcp_lib_pr_skip "TFO not supported by the kernel"
766 mptcp_lib_result_skip "${TEST_GROUP}"
770 mptcp_lib_pr_info "with MPTFO start"
771 ip netns exec "$ns1" sysctl -q net.ipv4.tcp_fastopen=2
772 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_fastopen=1
774 run_tests_lo "$ns1" "$ns2" 10.0.1.1 0 "-o MPTFO"
775 run_tests_lo "$ns1" "$ns2" 10.0.1.1 0 "-o MPTFO"
777 run_tests_lo "$ns1" "$ns2" dead:beef:1::1 0 "-o MPTFO"
778 run_tests_lo "$ns1" "$ns2" dead:beef:1::1 0 "-o MPTFO"
780 ip netns exec "$ns1" sysctl -q net.ipv4.tcp_fastopen=0
781 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_fastopen=0
782 mptcp_lib_pr_info "with MPTFO end"
785 run_tests_disconnect()
790 TEST_GROUP="full disconnect"
792 if ! mptcp_lib_kallsyms_has "mptcp_pm_data_reset$"; then
793 mptcp_lib_pr_skip "Full disconnect not supported"
794 mptcp_lib_result_skip "${TEST_GROUP}"
798 cat $cin $cin $cin > "$cin".disconnect
800 # force do_transfer to cope with the multiple transmissions
801 sin="$cin.disconnect"
802 cin="$cin.disconnect"
803 cin_disconnect="$old_cin"
804 connect_per_transfer=3
806 mptcp_lib_pr_info "disconnect"
807 run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 "-I 3 -i $old_cin"
808 run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-I 3 -i $old_cin"
810 # restore previous status
813 cin_disconnect="$cin".disconnect
814 connect_per_transfer=1
820 time_run=$((time_end-time_start))
822 echo "Time: ${time_run} seconds"
829 if [ ${ret} -ne 0 ]; then
830 mptcp_lib_pr_fail "${msg}"
841 if ! log_if_error "${@}"; then
843 mptcp_lib_result_print_all_tap
848 make_file "$cin" "client"
849 make_file "$sin" "server"
853 stop_if_error "The kernel configuration is not valid for MPTCP"
855 print_larger_title "Validating network environment with pings"
856 for sender in "$ns1" "$ns2" "$ns3" "$ns4";do
857 do_ping "$ns1" $sender 10.0.1.1
858 do_ping "$ns1" $sender dead:beef:1::1
860 do_ping "$ns2" $sender 10.0.1.2
861 do_ping "$ns2" $sender dead:beef:1::2
862 do_ping "$ns2" $sender 10.0.2.1
863 do_ping "$ns2" $sender dead:beef:2::1
865 do_ping "$ns3" $sender 10.0.2.2
866 do_ping "$ns3" $sender dead:beef:2::2
867 do_ping "$ns3" $sender 10.0.3.2
868 do_ping "$ns3" $sender dead:beef:3::2
870 do_ping "$ns4" $sender 10.0.3.1
871 do_ping "$ns4" $sender dead:beef:3::1
874 mptcp_lib_result_code "${ret}" "ping tests"
876 stop_if_error "Could not even run ping tests"
879 [ -n "$tc_loss" ] && tc -net "$ns2" qdisc add dev ns2eth3 root netem loss random $tc_loss delay ${tc_delay}ms
880 tc_info="loss of $tc_loss "
881 test "$tc_delay" -gt 0 && tc_info+="delay $tc_delay ms "
883 reorder_delay=$((tc_delay / 4))
885 if [ -z "${tc_reorder}" ]; then
886 reorder1=$((RANDOM%10))
887 reorder1=$((100 - reorder1))
888 reorder2=$((RANDOM%100))
890 if [ $reorder_delay -gt 0 ] && [ $reorder1 -lt 100 ] && [ $reorder2 -gt 0 ]; then
891 tc_reorder="reorder ${reorder1}% ${reorder2}%"
892 tc_info+="$tc_reorder with delay ${reorder_delay}ms "
894 elif [ "$tc_reorder" = "0" ];then
896 elif [ "$reorder_delay" -gt 0 ];then
897 # reordering requires some delay
898 tc_reorder="reorder $tc_reorder"
899 tc_info+="$tc_reorder with delay ${reorder_delay}ms "
902 mptcp_lib_pr_info "Using ${tc_info}on ns3eth4"
904 tc -net "$ns3" qdisc add dev ns3eth4 root netem delay ${reorder_delay}ms $tc_reorder
906 TEST_GROUP="loopback v4"
907 run_tests_lo "$ns1" "$ns1" 10.0.1.1 1
908 stop_if_error "Could not even run loopback test"
910 TEST_GROUP="loopback v6"
911 run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1
912 stop_if_error "Could not even run loopback v6 test"
914 TEST_GROUP="multihosts"
915 for sender in $ns1 $ns2 $ns3 $ns4;do
916 # ns1<->ns2 is not subject to reordering/tc delays. Use it to test
917 # mptcp syncookie support.
918 if [ $sender = $ns1 ]; then
919 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=2
921 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=1
924 run_tests "$ns1" $sender 10.0.1.1
925 run_tests "$ns1" $sender dead:beef:1::1
927 run_tests "$ns2" $sender 10.0.1.2
928 run_tests "$ns2" $sender dead:beef:1::2
929 run_tests "$ns2" $sender 10.0.2.1
930 run_tests "$ns2" $sender dead:beef:2::1
932 run_tests "$ns3" $sender 10.0.2.2
933 run_tests "$ns3" $sender dead:beef:2::2
934 run_tests "$ns3" $sender 10.0.3.2
935 run_tests "$ns3" $sender dead:beef:3::2
937 run_tests "$ns4" $sender 10.0.3.1
938 run_tests "$ns4" $sender dead:beef:3::1
940 log_if_error "Tests with $sender as a sender have failed"
943 run_tests_peekmode "saveWithPeek"
944 run_tests_peekmode "saveAfterPeek"
945 log_if_error "Tests with peek mode have failed"
947 # MPTFO (MultiPath TCP Fatopen tests)
949 log_if_error "Tests with MPTFO have failed"
951 # connect to ns4 ip address, ns2 should intercept/proxy
952 run_test_transparent 10.0.3.1 "tproxy ipv4"
953 run_test_transparent dead:beef:3::1 "tproxy ipv6"
954 log_if_error "Tests with tproxy have failed"
957 log_if_error "Tests of the full disconnection have failed"
960 mptcp_lib_result_print_all_tap