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 ${connector_ns} \
380 local stat_synrx_last_l
381 local stat_ackrx_last_l
382 local stat_cookietx_last
383 local stat_cookierx_last
384 local stat_csum_err_s
385 local stat_csum_err_c
386 stat_synrx_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX")
387 stat_ackrx_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableACKRX")
388 stat_cookietx_last=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesSent")
389 stat_cookierx_last=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesRecv")
390 stat_csum_err_s=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtDataCsumErr")
391 stat_csum_err_c=$(mptcp_lib_get_counter "${connector_ns}" "MPTcpExtDataCsumErr")
393 timeout ${timeout_test} \
394 ip netns exec ${listener_ns} \
395 ./mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \
396 $extra_args $local_addr < "$sin" > "$sout" &
399 mptcp_lib_wait_local_port_listen "${listener_ns}" "${port}"
403 timeout ${timeout_test} \
404 ip netns exec ${connector_ns} \
405 ./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
406 $extra_args $connect_addr < "$cin" > "$cout" &
419 kill ${cappid_listener}
420 kill ${cappid_connector}
423 NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \
424 nstat | grep Tcp > /tmp/${listener_ns}.out
425 if [ ${listener_ns} != ${connector_ns} ]; then
426 NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \
427 nstat | grep Tcp > /tmp/${connector_ns}.out
431 duration=$((stop-start))
432 result_msg+=" # time=${duration}ms"
433 printf "(duration %05sms) " "${duration}"
434 if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
435 mptcp_lib_pr_fail "client exit code $retc, server $rets"
436 echo -e "\nnetns ${listener_ns} socket stat for ${port}:" 1>&2
437 ip netns exec ${listener_ns} ss -Menita 1>&2 -o "sport = :$port"
438 cat /tmp/${listener_ns}.out
439 echo -e "\nnetns ${connector_ns} socket stat for ${port}:" 1>&2
440 ip netns exec ${connector_ns} ss -Menita 1>&2 -o "dport = :$port"
441 [ ${listener_ns} != ${connector_ns} ] && cat /tmp/${connector_ns}.out
445 mptcp_lib_result_fail "${TEST_GROUP}: ${result_msg}"
449 mptcp_lib_check_transfer $sin $cout "file received by client"
451 mptcp_lib_check_transfer $cin $sout "file received by server"
455 local stat_synrx_now_l
456 local stat_ackrx_now_l
457 local stat_cookietx_now
458 local stat_cookierx_now
460 stat_synrx_now_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX")
461 stat_ackrx_now_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableACKRX")
462 stat_cookietx_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesSent")
463 stat_cookierx_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesRecv")
464 stat_ooo_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtTCPOFOQueue")
466 expect_synrx=$((stat_synrx_last_l))
467 expect_ackrx=$((stat_ackrx_last_l))
469 cookies=$(ip netns exec ${listener_ns} sysctl net.ipv4.tcp_syncookies)
470 cookies=${cookies##*=}
472 if [ ${cl_proto} = "MPTCP" ] && [ ${srv_proto} = "MPTCP" ]; then
473 expect_synrx=$((stat_synrx_last_l+connect_per_transfer))
474 expect_ackrx=$((stat_ackrx_last_l+connect_per_transfer))
477 if [ ${stat_synrx_now_l} -lt ${expect_synrx} ]; then
478 mptcp_lib_pr_fail "lower MPC SYN rx (${stat_synrx_now_l})" \
479 "than expected (${expect_synrx})"
482 if [ ${stat_ackrx_now_l} -lt ${expect_ackrx} ] && [ ${stat_ooo_now} -eq 0 ]; then
483 if [ ${stat_ooo_now} -eq 0 ]; then
484 mptcp_lib_pr_fail "lower MPC ACK rx (${stat_ackrx_now_l})" \
485 "than expected (${expect_ackrx})"
488 extra+=" [ Note ] fallback due to TCP OoO"
495 csum_err_s=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtDataCsumErr")
496 csum_err_c=$(mptcp_lib_get_counter "${connector_ns}" "MPTcpExtDataCsumErr")
498 local csum_err_s_nr=$((csum_err_s - stat_csum_err_s))
499 if [ $csum_err_s_nr -gt 0 ]; then
500 mptcp_lib_pr_fail "server got ${csum_err_s_nr} data checksum error[s]"
504 local csum_err_c_nr=$((csum_err_c - stat_csum_err_c))
505 if [ $csum_err_c_nr -gt 0 ]; then
506 mptcp_lib_pr_fail "client got ${csum_err_c_nr} data checksum error[s]"
511 if [ $cookies -eq 2 ];then
512 if [ $stat_cookietx_last -ge $stat_cookietx_now ] ;then
513 extra+=" WARN: CookieSent: did not advance"
515 if [ $stat_cookierx_last -ge $stat_cookierx_now ] ;then
516 extra+=" WARN: CookieRecv: did not advance"
519 if [ $stat_cookietx_last -ne $stat_cookietx_now ] ;then
520 extra+=" WARN: CookieSent: changed"
522 if [ $stat_cookierx_last -ne $stat_cookierx_now ] ;then
523 extra+=" WARN: CookieRecv: changed"
527 if [ ${stat_synrx_now_l} -gt ${expect_synrx} ]; then
528 extra+=" WARN: SYNRX: expect ${expect_synrx},"
529 extra+=" got ${stat_synrx_now_l} (probably retransmissions)"
531 if [ ${stat_ackrx_now_l} -gt ${expect_ackrx} ]; then
532 extra+=" WARN: ACKRX: expect ${expect_ackrx},"
533 extra+=" got ${stat_ackrx_now_l} (probably retransmissions)"
536 if [ $retc -eq 0 ] && [ $rets -eq 0 ]; then
537 mptcp_lib_pr_ok "${extra:1}"
538 mptcp_lib_result_pass "${TEST_GROUP}: ${result_msg}"
540 if [ -n "${extra}" ]; then
541 mptcp_lib_print_warn "${extra:1}"
543 mptcp_lib_result_fail "${TEST_GROUP}: ${result_msg}"
547 [ $retc -eq 0 ] && [ $rets -eq 0 ]
558 if [ $SIZE -eq 0 ]; then
559 local MAXSIZE=$((1024 * 1024 * 8))
560 local MINSIZE=$((1024 * 256))
562 SIZE=$(((RANDOM * RANDOM + MINSIZE) % MAXSIZE))
565 ksize=$((SIZE / 1024))
566 rem=$((SIZE - (ksize * 1024)))
568 mptcp_lib_make_file $name 1024 $ksize
569 dd if=/dev/urandom conv=notrunc of="$name" oflag=append bs=1 count=$rem 2> /dev/null
571 echo "Created $name (size $(du -b "$name")) containing data sent by $who"
576 local listener_ns="$1"
577 local connector_ns="$2"
578 local connect_addr="$3"
580 local extra_args="$5"
583 # skip if test programs are running inside same netns for subsequent runs.
584 if [ $loopback -eq 0 ] && [ ${listener_ns} = ${connector_ns} ]; then
588 # skip if we don't want v6
589 if ! $ipv6 && mptcp_lib_is_v6 "${connect_addr}"; then
594 if mptcp_lib_is_v6 "${connect_addr}"; then
600 do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \
601 ${connect_addr} ${local_addr} "${extra_args}"
603 if [ $lret -ne 0 ]; then
608 if [ $do_tcp -eq 0 ]; then
609 # don't bother testing fallback tcp except for loopback case.
610 if [ ${listener_ns} != ${connector_ns} ]; then
615 do_transfer ${listener_ns} ${connector_ns} MPTCP TCP \
616 ${connect_addr} ${local_addr} "${extra_args}"
618 if [ $lret -ne 0 ]; then
623 do_transfer ${listener_ns} ${connector_ns} TCP MPTCP \
624 ${connect_addr} ${local_addr} "${extra_args}"
626 if [ $lret -ne 0 ]; then
631 if [ $do_tcp -gt 1 ] ;then
632 do_transfer ${listener_ns} ${connector_ns} TCP TCP \
633 ${connect_addr} ${local_addr} "${extra_args}"
635 if [ $lret -ne 0 ]; then
646 run_tests_lo $1 $2 $3 0
649 run_test_transparent()
651 local connect_addr="$1"
654 local connector_ns="$ns1"
655 local listener_ns="$ns2"
661 # skip if we don't want v6
662 if ! $ipv6 && mptcp_lib_is_v6 "${connect_addr}"; then
666 # IP(V6)_TRANSPARENT has been added after TOS support which came with
667 # the required infrastructure in MPTCP sockopt code. To support TOS, the
668 # following function has been exported (T). Not great but better than
669 # checking for a specific kernel version.
670 if ! mptcp_lib_kallsyms_has "T __ip_sock_set_tos$"; then
671 mptcp_lib_pr_skip "${msg} not supported by the kernel"
672 mptcp_lib_result_skip "${TEST_GROUP}"
676 if ! ip netns exec "$listener_ns" nft -f /dev/stdin <<"EOF"
680 type filter hook prerouting priority -150;
682 meta l4proto tcp socket transparent 1 meta mark set 1 accept
683 tcp dport 20000 tproxy to :20000 meta mark set 1 accept
688 mptcp_lib_pr_skip "$msg, could not load nft ruleset"
689 mptcp_lib_fail_if_expected_feature "nft rules"
690 mptcp_lib_result_skip "${TEST_GROUP}"
695 if mptcp_lib_is_v6 "${connect_addr}"; then
702 if ! ip -net "$listener_ns" $r6flag rule add fwmark 1 lookup 100; then
703 ip netns exec "$listener_ns" nft flush ruleset
704 mptcp_lib_pr_skip "$msg, ip $r6flag rule failed"
705 mptcp_lib_fail_if_expected_feature "ip rule"
706 mptcp_lib_result_skip "${TEST_GROUP}"
710 if ! ip -net "$listener_ns" route add local $local_addr/0 dev lo table 100; then
711 ip netns exec "$listener_ns" nft flush ruleset
712 ip -net "$listener_ns" $r6flag rule del fwmark 1 lookup 100
713 mptcp_lib_pr_skip "$msg, ip route add local $local_addr failed"
714 mptcp_lib_fail_if_expected_feature "ip route"
715 mptcp_lib_result_skip "${TEST_GROUP}"
719 mptcp_lib_pr_info "test $msg"
722 local extra_args="-o TRANSPARENT"
723 do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \
724 ${connect_addr} ${local_addr} "${extra_args}"
727 ip netns exec "$listener_ns" nft flush ruleset
728 ip -net "$listener_ns" $r6flag rule del fwmark 1 lookup 100
729 ip -net "$listener_ns" route del local $local_addr/0 dev lo table 100
731 if [ $lret -ne 0 ]; then
732 mptcp_lib_pr_fail "$msg, mptcp connection error"
737 mptcp_lib_pr_info "$msg pass"
745 TEST_GROUP="peek mode: ${peekmode}"
746 mptcp_lib_pr_info "with peek mode: ${peekmode}"
747 run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 "-P ${peekmode}"
748 run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-P ${peekmode}"
755 if ! mptcp_lib_kallsyms_has "mptcp_fastopen_"; then
756 mptcp_lib_pr_skip "TFO not supported by the kernel"
757 mptcp_lib_result_skip "${TEST_GROUP}"
761 mptcp_lib_pr_info "with MPTFO start"
762 ip netns exec "$ns1" sysctl -q net.ipv4.tcp_fastopen=2
763 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_fastopen=1
765 run_tests_lo "$ns1" "$ns2" 10.0.1.1 0 "-o MPTFO"
766 run_tests_lo "$ns1" "$ns2" 10.0.1.1 0 "-o MPTFO"
768 run_tests_lo "$ns1" "$ns2" dead:beef:1::1 0 "-o MPTFO"
769 run_tests_lo "$ns1" "$ns2" dead:beef:1::1 0 "-o MPTFO"
771 ip netns exec "$ns1" sysctl -q net.ipv4.tcp_fastopen=0
772 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_fastopen=0
773 mptcp_lib_pr_info "with MPTFO end"
776 run_tests_disconnect()
781 TEST_GROUP="full disconnect"
783 if ! mptcp_lib_kallsyms_has "mptcp_pm_data_reset$"; then
784 mptcp_lib_pr_skip "Full disconnect not supported"
785 mptcp_lib_result_skip "${TEST_GROUP}"
789 cat $cin $cin $cin > "$cin".disconnect
791 # force do_transfer to cope with the multiple transmissions
792 sin="$cin.disconnect"
793 cin="$cin.disconnect"
794 cin_disconnect="$old_cin"
795 connect_per_transfer=3
797 mptcp_lib_pr_info "disconnect"
798 run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 "-I 3 -i $old_cin"
799 run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-I 3 -i $old_cin"
801 # restore previous status
804 cin_disconnect="$cin".disconnect
805 connect_per_transfer=1
811 time_run=$((time_end-time_start))
813 echo "Time: ${time_run} seconds"
820 if [ ${ret} -ne 0 ]; then
821 mptcp_lib_pr_fail "${msg}"
832 if ! log_if_error "${@}"; then
834 mptcp_lib_result_print_all_tap
839 make_file "$cin" "client"
840 make_file "$sin" "server"
844 stop_if_error "The kernel configuration is not valid for MPTCP"
846 print_larger_title "Validating network environment with pings"
847 for sender in "$ns1" "$ns2" "$ns3" "$ns4";do
848 do_ping "$ns1" $sender 10.0.1.1
849 do_ping "$ns1" $sender dead:beef:1::1
851 do_ping "$ns2" $sender 10.0.1.2
852 do_ping "$ns2" $sender dead:beef:1::2
853 do_ping "$ns2" $sender 10.0.2.1
854 do_ping "$ns2" $sender dead:beef:2::1
856 do_ping "$ns3" $sender 10.0.2.2
857 do_ping "$ns3" $sender dead:beef:2::2
858 do_ping "$ns3" $sender 10.0.3.2
859 do_ping "$ns3" $sender dead:beef:3::2
861 do_ping "$ns4" $sender 10.0.3.1
862 do_ping "$ns4" $sender dead:beef:3::1
865 mptcp_lib_result_code "${ret}" "ping tests"
867 stop_if_error "Could not even run ping tests"
870 [ -n "$tc_loss" ] && tc -net "$ns2" qdisc add dev ns2eth3 root netem loss random $tc_loss delay ${tc_delay}ms
871 tc_info="loss of $tc_loss "
872 test "$tc_delay" -gt 0 && tc_info+="delay $tc_delay ms "
874 reorder_delay=$((tc_delay / 4))
876 if [ -z "${tc_reorder}" ]; then
877 reorder1=$((RANDOM%10))
878 reorder1=$((100 - reorder1))
879 reorder2=$((RANDOM%100))
881 if [ $reorder_delay -gt 0 ] && [ $reorder1 -lt 100 ] && [ $reorder2 -gt 0 ]; then
882 tc_reorder="reorder ${reorder1}% ${reorder2}%"
883 tc_info+="$tc_reorder with delay ${reorder_delay}ms "
885 elif [ "$tc_reorder" = "0" ];then
887 elif [ "$reorder_delay" -gt 0 ];then
888 # reordering requires some delay
889 tc_reorder="reorder $tc_reorder"
890 tc_info+="$tc_reorder with delay ${reorder_delay}ms "
893 mptcp_lib_pr_info "Using ${tc_info}on ns3eth4"
895 tc -net "$ns3" qdisc add dev ns3eth4 root netem delay ${reorder_delay}ms $tc_reorder
897 TEST_GROUP="loopback v4"
898 run_tests_lo "$ns1" "$ns1" 10.0.1.1 1
899 stop_if_error "Could not even run loopback test"
901 TEST_GROUP="loopback v6"
902 run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1
903 stop_if_error "Could not even run loopback v6 test"
905 TEST_GROUP="multihosts"
906 for sender in $ns1 $ns2 $ns3 $ns4;do
907 # ns1<->ns2 is not subject to reordering/tc delays. Use it to test
908 # mptcp syncookie support.
909 if [ $sender = $ns1 ]; then
910 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=2
912 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=1
915 run_tests "$ns1" $sender 10.0.1.1
916 run_tests "$ns1" $sender dead:beef:1::1
918 run_tests "$ns2" $sender 10.0.1.2
919 run_tests "$ns2" $sender dead:beef:1::2
920 run_tests "$ns2" $sender 10.0.2.1
921 run_tests "$ns2" $sender dead:beef:2::1
923 run_tests "$ns3" $sender 10.0.2.2
924 run_tests "$ns3" $sender dead:beef:2::2
925 run_tests "$ns3" $sender 10.0.3.2
926 run_tests "$ns3" $sender dead:beef:3::2
928 run_tests "$ns4" $sender 10.0.3.1
929 run_tests "$ns4" $sender dead:beef:3::1
931 log_if_error "Tests with $sender as a sender have failed"
934 run_tests_peekmode "saveWithPeek"
935 run_tests_peekmode "saveAfterPeek"
936 log_if_error "Tests with peek mode have failed"
938 # MPTFO (MultiPath TCP Fatopen tests)
940 log_if_error "Tests with MPTFO have failed"
942 # connect to ns4 ip address, ns2 should intercept/proxy
943 run_test_transparent 10.0.3.1 "tproxy ipv4"
944 run_test_transparent dead:beef:3::1 "tproxy ipv6"
945 log_if_error "Tests with tproxy have failed"
948 log_if_error "Tests of the full disconnection have failed"
951 mptcp_lib_result_print_all_tap