2 # SPDX-License-Identifier: GPL-2.0
6 optstring="S:R:d:e:l:r:h4cm:f:tC"
16 timeout_test=$((timeout_poll * 2 + 1))
18 ethtool_random_on=true
19 tc_delay="$((RANDOM%50))"
20 tc_loss=$((RANDOM%101))
28 connect_per_transfer=1
30 if [ $tc_loss -eq 100 ];then
32 elif [ $tc_loss -ge 10 ]; then
34 elif [ $tc_loss -ge 1 ]; then
41 echo "Usage: $0 [ -a ]"
42 echo -e "\t-d: tc/netem delay in milliseconds, e.g. \"-d 10\" (default random)"
43 echo -e "\t-l: tc/netem loss percentage, e.g. \"-l 0.02\" (default random)"
44 echo -e "\t-r: tc/netem reorder mode, e.g. \"-r 25% 50% gap 5\", use "-r 0" to disable reordering (default random)"
45 echo -e "\t-e: ethtool features to disable, e.g.: \"-e tso -e gso\" (default: randomly disable any of tso/gso/gro)"
46 echo -e "\t-4: IPv4 only: disable IPv6 tests (default: test both IPv4 and IPv6)"
47 echo -e "\t-c: capture packets for each test using tcpdump (default: no capture)"
48 echo -e "\t-f: size of file to transfer in bytes (default random)"
49 echo -e "\t-S: set sndbuf value (default: use kernel default)"
50 echo -e "\t-R: set rcvbuf value (default: use kernel default)"
51 echo -e "\t-m: test mode (poll, sendfile; default: poll)"
52 echo -e "\t-t: also run tests with TCP (use twice to non-fallback tcp)"
53 echo -e "\t-C: enable the MPTCP data checksum"
56 while getopts "$optstring" option;do
63 if [ $OPTARG -ge 0 ];then
66 echo "-d requires numeric argument, got \"$OPTARG\"" 1>&2
71 ethtool_args="$ethtool_args $OPTARG off"
72 ethtool_random_on=false
87 if [ $OPTARG -ge 0 ];then
90 echo "-S requires numeric argument, got \"$OPTARG\"" 1>&2
95 if [ $OPTARG -ge 0 ];then
98 echo "-R requires numeric argument, got \"$OPTARG\"" 1>&2
122 rndh=$(printf %x $sec)-$(mktemp -u XXXXXX)
132 rm -f "$cin_disconnect" "$cout_disconnect"
138 for netns in "$ns1" "$ns2" "$ns3" "$ns4";do
140 rm -f /tmp/$netns.{nstat,out}
144 ip -Version > /dev/null 2>&1
146 echo "SKIP: Could not run test without ip tool"
155 cin_disconnect="$cin".disconnect
156 cout_disconnect="$cout".disconnect
159 for i in "$ns1" "$ns2" "$ns3" "$ns4";do
160 ip netns add $i || exit $ksft_skip
161 ip -net $i link set lo up
165 # ns1eth2 ns2eth1 ns2eth3 ns3eth2 ns3eth4 ns4eth3
166 # - drop 1% -> reorder 25%
169 ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth1 netns "$ns2"
170 ip link add ns2eth3 netns "$ns2" type veth peer name ns3eth2 netns "$ns3"
171 ip link add ns3eth4 netns "$ns3" type veth peer name ns4eth3 netns "$ns4"
173 ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth2
174 ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth2 nodad
176 ip -net "$ns1" link set ns1eth2 up
177 ip -net "$ns1" route add default via 10.0.1.2
178 ip -net "$ns1" route add default via dead:beef:1::2
180 ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1
181 ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad
182 ip -net "$ns2" link set ns2eth1 up
184 ip -net "$ns2" addr add 10.0.2.1/24 dev ns2eth3
185 ip -net "$ns2" addr add dead:beef:2::1/64 dev ns2eth3 nodad
186 ip -net "$ns2" link set ns2eth3 up
187 ip -net "$ns2" route add default via 10.0.2.2
188 ip -net "$ns2" route add default via dead:beef:2::2
189 ip netns exec "$ns2" sysctl -q net.ipv4.ip_forward=1
190 ip netns exec "$ns2" sysctl -q net.ipv6.conf.all.forwarding=1
192 ip -net "$ns3" addr add 10.0.2.2/24 dev ns3eth2
193 ip -net "$ns3" addr add dead:beef:2::2/64 dev ns3eth2 nodad
194 ip -net "$ns3" link set ns3eth2 up
196 ip -net "$ns3" addr add 10.0.3.2/24 dev ns3eth4
197 ip -net "$ns3" addr add dead:beef:3::2/64 dev ns3eth4 nodad
198 ip -net "$ns3" link set ns3eth4 up
199 ip -net "$ns3" route add default via 10.0.2.1
200 ip -net "$ns3" route add default via dead:beef:2::1
201 ip netns exec "$ns3" sysctl -q net.ipv4.ip_forward=1
202 ip netns exec "$ns3" sysctl -q net.ipv6.conf.all.forwarding=1
204 ip -net "$ns4" addr add 10.0.3.1/24 dev ns4eth3
205 ip -net "$ns4" addr add dead:beef:3::1/64 dev ns4eth3 nodad
206 ip -net "$ns4" link set ns4eth3 up
207 ip -net "$ns4" route add default via 10.0.3.2
208 ip -net "$ns4" route add default via dead:beef:3::2
211 for i in "$ns1" "$ns2" "$ns3" "$ns4";do
212 ip netns exec $i sysctl -q net.mptcp.checksum_enabled=1
216 set_ethtool_flags() {
221 ip netns exec $ns ethtool -K $dev $flags 2>/dev/null
222 [ $? -eq 0 ] && echo "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 "$ethtool_args"
253 echo "Trailing bytes are: "
263 cmp "$in" "$out" > /dev/null 2>&1
264 if [ $? -ne 0 ] ;then
265 echo "[ FAIL ] $what does not match (in, out):"
267 print_file_err "$out"
275 check_mptcp_disabled()
277 local disabled_ns="ns_disabled-$rndh"
278 ip netns add ${disabled_ns} || exit $ksft_skip
280 # net.mptcp.enabled should be enabled by default
281 if [ "$(ip netns exec ${disabled_ns} sysctl net.mptcp.enabled | awk '{ print $3 }')" -ne 1 ]; then
282 echo -e "net.mptcp.enabled sysctl is not 1 by default\t\t[ FAIL ]"
286 ip netns exec ${disabled_ns} sysctl -q net.mptcp.enabled=0
289 LC_ALL=C ip netns exec ${disabled_ns} ./mptcp_connect -p 10000 -s MPTCP 127.0.0.1 < "$cin" 2>&1 | \
290 grep -q "^socket: Protocol not available$" && err=1
291 ip netns delete ${disabled_ns}
293 if [ ${err} -eq 0 ]; then
294 echo -e "New MPTCP socket cannot be blocked via sysctl\t\t[ FAIL ]"
299 echo -e "New MPTCP socket can be blocked via sysctl\t\t[ OK ]"
311 local listener_ns="$1"
312 local connector_ns="$2"
313 local connect_addr="$3"
314 local ping_args="-q -c 1"
316 if is_v6 "${connect_addr}"; then
318 ping_args="${ping_args} -6"
321 ip netns exec ${connector_ns} ping ${ping_args} $connect_addr >/dev/null
322 if [ $? -ne 0 ] ; then
323 echo "$listener_ns -> $connect_addr connectivity [ FAIL ]" 1>&2
332 # $1: ns, $2: MIB counter
335 local listener_ns="${1}"
339 ip netns exec "${listener_ns}" \
340 nstat -z -a "${mib}" | \
342 while read a count c rest; do
348 wait_local_port_listen()
350 local listener_ns="${1}"
355 port_hex="$(printf "%04X" "${port}")"
356 for i in $(seq 10); do
357 ip netns exec "${listener_ns}" cat /proc/net/tcp* | \
358 awk "BEGIN {rc=1} {if (\$2 ~ /:${port_hex}\$/ && \$4 ~ /0A/) {rc=0; exit}} END {exit rc}" &&
366 local listener_ns="$1"
367 local connector_ns="$2"
370 local connect_addr="$5"
371 local local_addr="$6"
372 local extra_args="$7"
375 port=$((10000+$TEST_COUNT))
376 TEST_COUNT=$((TEST_COUNT+1))
378 if [ "$rcvbuf" -gt 0 ]; then
379 extra_args="$extra_args -R $rcvbuf"
382 if [ "$sndbuf" -gt 0 ]; then
383 extra_args="$extra_args -S $sndbuf"
386 if [ -n "$testmode" ]; then
387 extra_args="$extra_args -m $testmode"
390 if [ -n "$extra_args" ] && $options_log; then
391 echo "INFO: extra options: $extra_args"
400 addr_port=$(printf "%s:%d" ${connect_addr} ${port})
401 printf "%.3s %-5s -> %.3s (%-20s) %-5s\t" ${connector_ns} ${cl_proto} ${listener_ns} ${addr_port} ${srv_proto}
405 if [ -z $SUDO_USER ] ; then
408 capuser="-Z $SUDO_USER"
411 local capfile="${rndh}-${connector_ns:0:3}-${listener_ns:0:3}-${cl_proto}-${srv_proto}-${connect_addr}-${port}"
412 local capopt="-i any -s 65535 -B 32768 ${capuser}"
414 ip netns exec ${listener_ns} tcpdump ${capopt} -w "${capfile}-listener.pcap" >> "${capout}" 2>&1 &
415 local cappid_listener=$!
417 ip netns exec ${connector_ns} tcpdump ${capopt} -w "${capfile}-connector.pcap" >> "${capout}" 2>&1 &
418 local cappid_connector=$!
423 NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \
425 if [ ${listener_ns} != ${connector_ns} ]; then
426 NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \
430 local stat_synrx_last_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX")
431 local stat_ackrx_last_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableACKRX")
432 local stat_cookietx_last=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesSent")
433 local stat_cookierx_last=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesRecv")
434 local stat_csum_err_s=$(get_mib_counter "${listener_ns}" "MPTcpExtDataCsumErr")
435 local stat_csum_err_c=$(get_mib_counter "${connector_ns}" "MPTcpExtDataCsumErr")
437 timeout ${timeout_test} \
438 ip netns exec ${listener_ns} \
439 ./mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \
440 $extra_args $local_addr < "$sin" > "$sout" &
443 wait_local_port_listen "${listener_ns}" "${port}"
447 timeout ${timeout_test} \
448 ip netns exec ${connector_ns} \
449 ./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
450 $extra_args $connect_addr < "$cin" > "$cout" &
463 kill ${cappid_listener}
464 kill ${cappid_connector}
467 NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \
468 nstat | grep Tcp > /tmp/${listener_ns}.out
469 if [ ${listener_ns} != ${connector_ns} ]; then
470 NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \
471 nstat | grep Tcp > /tmp/${connector_ns}.out
475 duration=$((stop-start))
476 printf "(duration %05sms) " "${duration}"
477 if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
478 echo "[ FAIL ] client exit code $retc, server $rets" 1>&2
479 echo -e "\nnetns ${listener_ns} socket stat for ${port}:" 1>&2
480 ip netns exec ${listener_ns} ss -Menita 1>&2 -o "sport = :$port"
481 cat /tmp/${listener_ns}.out
482 echo -e "\nnetns ${connector_ns} socket stat for ${port}:" 1>&2
483 ip netns exec ${connector_ns} ss -Menita 1>&2 -o "dport = :$port"
484 [ ${listener_ns} != ${connector_ns} ] && cat /tmp/${connector_ns}.out
491 check_transfer $sin $cout "file received by client"
493 check_transfer $cin $sout "file received by server"
496 local stat_synrx_now_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX")
497 local stat_ackrx_now_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableACKRX")
498 local stat_cookietx_now=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesSent")
499 local stat_cookierx_now=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesRecv")
500 local stat_ooo_now=$(get_mib_counter "${listener_ns}" "TcpExtTCPOFOQueue")
502 expect_synrx=$((stat_synrx_last_l))
503 expect_ackrx=$((stat_ackrx_last_l))
505 cookies=$(ip netns exec ${listener_ns} sysctl net.ipv4.tcp_syncookies)
506 cookies=${cookies##*=}
508 if [ ${cl_proto} = "MPTCP" ] && [ ${srv_proto} = "MPTCP" ]; then
509 expect_synrx=$((stat_synrx_last_l+$connect_per_transfer))
510 expect_ackrx=$((stat_ackrx_last_l+$connect_per_transfer))
513 if [ ${stat_synrx_now_l} -lt ${expect_synrx} ]; then
514 printf "[ FAIL ] lower MPC SYN rx (%d) than expected (%d)\n" \
515 "${stat_synrx_now_l}" "${expect_synrx}" 1>&2
518 if [ ${stat_ackrx_now_l} -lt ${expect_ackrx} -a ${stat_ooo_now} -eq 0 ]; then
519 if [ ${stat_ooo_now} -eq 0 ]; then
520 printf "[ FAIL ] lower MPC ACK rx (%d) than expected (%d)\n" \
521 "${stat_ackrx_now_l}" "${expect_ackrx}" 1>&2
524 printf "[ Note ] fallback due to TCP OoO"
529 local csum_err_s=$(get_mib_counter "${listener_ns}" "MPTcpExtDataCsumErr")
530 local csum_err_c=$(get_mib_counter "${connector_ns}" "MPTcpExtDataCsumErr")
532 local csum_err_s_nr=$((csum_err_s - stat_csum_err_s))
533 if [ $csum_err_s_nr -gt 0 ]; then
534 printf "[ FAIL ]\nserver got $csum_err_s_nr data checksum error[s]"
538 local csum_err_c_nr=$((csum_err_c - stat_csum_err_c))
539 if [ $csum_err_c_nr -gt 0 ]; then
540 printf "[ FAIL ]\nclient got $csum_err_c_nr data checksum error[s]"
545 if [ $retc -eq 0 ] && [ $rets -eq 0 ]; then
549 if [ $cookies -eq 2 ];then
550 if [ $stat_cookietx_last -ge $stat_cookietx_now ] ;then
551 printf " WARN: CookieSent: did not advance"
553 if [ $stat_cookierx_last -ge $stat_cookierx_now ] ;then
554 printf " WARN: CookieRecv: did not advance"
557 if [ $stat_cookietx_last -ne $stat_cookietx_now ] ;then
558 printf " WARN: CookieSent: changed"
560 if [ $stat_cookierx_last -ne $stat_cookierx_now ] ;then
561 printf " WARN: CookieRecv: changed"
565 if [ ${stat_synrx_now_l} -gt ${expect_synrx} ]; then
566 printf " WARN: SYNRX: expect %d, got %d (probably retransmissions)" \
567 "${expect_synrx}" "${stat_synrx_now_l}"
569 if [ ${stat_ackrx_now_l} -gt ${expect_ackrx} ]; then
570 printf " WARN: ACKRX: expect %d, got %d (probably retransmissions)" \
571 "${expect_ackrx}" "${stat_ackrx_now_l}"
576 [ $retc -eq 0 ] && [ $rets -eq 0 ]
587 if [ $SIZE -eq 0 ]; then
588 local MAXSIZE=$((1024 * 1024 * 8))
589 local MINSIZE=$((1024 * 256))
591 SIZE=$(((RANDOM * RANDOM + MINSIZE) % MAXSIZE))
594 ksize=$((SIZE / 1024))
595 rem=$((SIZE - (ksize * 1024)))
597 dd if=/dev/urandom of="$name" bs=1024 count=$ksize 2> /dev/null
598 dd if=/dev/urandom conv=notrunc of="$name" bs=1 count=$rem 2> /dev/null
599 echo -e "\nMPTCP_TEST_FILE_END_MARKER" >> "$name"
601 echo "Created $name (size $(du -b "$name")) containing data sent by $who"
606 local listener_ns="$1"
607 local connector_ns="$2"
608 local connect_addr="$3"
610 local extra_args="$5"
613 # skip if test programs are running inside same netns for subsequent runs.
614 if [ $loopback -eq 0 ] && [ ${listener_ns} = ${connector_ns} ]; then
618 # skip if we don't want v6
619 if ! $ipv6 && is_v6 "${connect_addr}"; then
624 if is_v6 "${connect_addr}"; then
630 do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \
631 ${connect_addr} ${local_addr} "${extra_args}"
633 if [ $lret -ne 0 ]; then
638 if [ $do_tcp -eq 0 ]; then
639 # don't bother testing fallback tcp except for loopback case.
640 if [ ${listener_ns} != ${connector_ns} ]; then
645 do_transfer ${listener_ns} ${connector_ns} MPTCP TCP \
646 ${connect_addr} ${local_addr} "${extra_args}"
648 if [ $lret -ne 0 ]; then
653 do_transfer ${listener_ns} ${connector_ns} TCP MPTCP \
654 ${connect_addr} ${local_addr} "${extra_args}"
656 if [ $lret -ne 0 ]; then
661 if [ $do_tcp -gt 1 ] ;then
662 do_transfer ${listener_ns} ${connector_ns} TCP TCP \
663 ${connect_addr} ${local_addr} "${extra_args}"
665 if [ $lret -ne 0 ]; then
676 run_tests_lo $1 $2 $3 0
679 run_test_transparent()
681 local connect_addr="$1"
684 local connector_ns="$ns1"
685 local listener_ns="$ns2"
689 # skip if we don't want v6
690 if ! $ipv6 && is_v6 "${connect_addr}"; then
694 ip netns exec "$listener_ns" nft -f /dev/stdin <<"EOF"
698 type filter hook prerouting priority -150;
700 meta l4proto tcp socket transparent 1 meta mark set 1 accept
701 tcp dport 20000 tproxy to :20000 meta mark set 1 accept
705 if [ $? -ne 0 ]; then
706 echo "SKIP: $msg, could not load nft ruleset"
711 if is_v6 "${connect_addr}"; then
718 ip -net "$listener_ns" $r6flag rule add fwmark 1 lookup 100
719 if [ $? -ne 0 ]; then
720 ip netns exec "$listener_ns" nft flush ruleset
721 echo "SKIP: $msg, ip $r6flag rule failed"
725 ip -net "$listener_ns" route add local $local_addr/0 dev lo table 100
726 if [ $? -ne 0 ]; then
727 ip netns exec "$listener_ns" nft flush ruleset
728 ip -net "$listener_ns" $r6flag rule del fwmark 1 lookup 100
729 echo "SKIP: $msg, ip route add local $local_addr failed"
733 echo "INFO: test $msg"
736 local extra_args="-o TRANSPARENT"
737 do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \
738 ${connect_addr} ${local_addr} "${extra_args}"
741 ip netns exec "$listener_ns" nft flush ruleset
742 ip -net "$listener_ns" $r6flag rule del fwmark 1 lookup 100
743 ip -net "$listener_ns" route del local $local_addr/0 dev lo table 100
745 if [ $lret -ne 0 ]; then
746 echo "FAIL: $msg, mptcp connection error" 1>&2
759 echo "INFO: with peek mode: ${peekmode}"
760 run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 "-P ${peekmode}"
761 run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-P ${peekmode}"
766 echo "INFO: with MPTFO start"
767 ip netns exec "$ns1" sysctl -q net.ipv4.tcp_fastopen=2
768 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_fastopen=1
770 run_tests_lo "$ns1" "$ns2" 10.0.1.1 0 "-o MPTFO"
771 run_tests_lo "$ns1" "$ns2" 10.0.1.1 0 "-o MPTFO"
773 run_tests_lo "$ns1" "$ns2" dead:beef:1::1 0 "-o MPTFO"
774 run_tests_lo "$ns1" "$ns2" dead:beef:1::1 0 "-o MPTFO"
776 ip netns exec "$ns1" sysctl -q net.ipv4.tcp_fastopen=0
777 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_fastopen=0
778 echo "INFO: with MPTFO end"
781 run_tests_disconnect()
786 cat $cin $cin $cin > "$cin".disconnect
788 # force do_transfer to cope with the multiple tranmissions
789 sin="$cin.disconnect"
790 cin="$cin.disconnect"
791 cin_disconnect="$old_cin"
792 connect_per_transfer=3
794 echo "INFO: disconnect"
795 run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 "-I 3 -i $old_cin"
796 run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-I 3 -i $old_cin"
798 # restore previous status
801 cin_disconnect="$cin".disconnect
802 connect_per_transfer=1
808 time_run=$((time_end-time_start))
810 echo "Time: ${time_run} seconds"
817 if [ ${ret} -ne 0 ]; then
818 echo "FAIL: ${msg}" 1>&2
824 make_file "$cin" "client"
825 make_file "$sin" "server"
829 stop_if_error "The kernel configuration is not valid for MPTCP"
831 echo "INFO: validating network environment with pings"
832 for sender in "$ns1" "$ns2" "$ns3" "$ns4";do
833 do_ping "$ns1" $sender 10.0.1.1
834 do_ping "$ns1" $sender dead:beef:1::1
836 do_ping "$ns2" $sender 10.0.1.2
837 do_ping "$ns2" $sender dead:beef:1::2
838 do_ping "$ns2" $sender 10.0.2.1
839 do_ping "$ns2" $sender dead:beef:2::1
841 do_ping "$ns3" $sender 10.0.2.2
842 do_ping "$ns3" $sender dead:beef:2::2
843 do_ping "$ns3" $sender 10.0.3.2
844 do_ping "$ns3" $sender dead:beef:3::2
846 do_ping "$ns4" $sender 10.0.3.1
847 do_ping "$ns4" $sender dead:beef:3::1
850 stop_if_error "Could not even run ping tests"
852 [ -n "$tc_loss" ] && tc -net "$ns2" qdisc add dev ns2eth3 root netem loss random $tc_loss delay ${tc_delay}ms
853 echo -n "INFO: Using loss of $tc_loss "
854 test "$tc_delay" -gt 0 && echo -n "delay $tc_delay ms "
856 reorder_delay=$(($tc_delay / 4))
858 if [ -z "${tc_reorder}" ]; then
859 reorder1=$((RANDOM%10))
860 reorder1=$((100 - reorder1))
861 reorder2=$((RANDOM%100))
863 if [ $reorder_delay -gt 0 ] && [ $reorder1 -lt 100 ] && [ $reorder2 -gt 0 ]; then
864 tc_reorder="reorder ${reorder1}% ${reorder2}%"
865 echo -n "$tc_reorder with delay ${reorder_delay}ms "
867 elif [ "$tc_reorder" = "0" ];then
869 elif [ "$reorder_delay" -gt 0 ];then
870 # reordering requires some delay
871 tc_reorder="reorder $tc_reorder"
872 echo -n "$tc_reorder with delay ${reorder_delay}ms "
877 tc -net "$ns3" qdisc add dev ns3eth4 root netem delay ${reorder_delay}ms $tc_reorder
879 run_tests_lo "$ns1" "$ns1" 10.0.1.1 1
880 stop_if_error "Could not even run loopback test"
882 run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1
883 stop_if_error "Could not even run loopback v6 test"
885 for sender in $ns1 $ns2 $ns3 $ns4;do
886 # ns1<->ns2 is not subject to reordering/tc delays. Use it to test
887 # mptcp syncookie support.
888 if [ $sender = $ns1 ]; then
889 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=2
891 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=1
894 run_tests "$ns1" $sender 10.0.1.1
895 run_tests "$ns1" $sender dead:beef:1::1
897 run_tests "$ns2" $sender 10.0.1.2
898 run_tests "$ns2" $sender dead:beef:1::2
899 run_tests "$ns2" $sender 10.0.2.1
900 run_tests "$ns2" $sender dead:beef:2::1
902 run_tests "$ns3" $sender 10.0.2.2
903 run_tests "$ns3" $sender dead:beef:2::2
904 run_tests "$ns3" $sender 10.0.3.2
905 run_tests "$ns3" $sender dead:beef:3::2
907 run_tests "$ns4" $sender 10.0.3.1
908 run_tests "$ns4" $sender dead:beef:3::1
910 stop_if_error "Tests with $sender as a sender have failed"
913 run_tests_peekmode "saveWithPeek"
914 run_tests_peekmode "saveAfterPeek"
915 stop_if_error "Tests with peek mode have failed"
917 # MPTFO (MultiPath TCP Fatopen tests)
919 stop_if_error "Tests with MPTFO have failed"
921 # connect to ns4 ip address, ns2 should intercept/proxy
922 run_test_transparent 10.0.3.1 "tproxy ipv4"
923 run_test_transparent dead:beef:3::1 "tproxy ipv6"
924 stop_if_error "Tests with tproxy have failed"