2 # SPDX-License-Identifier: GPL-2.0
4 . "$(dirname "${0}")/mptcp_lib.sh"
8 optstring="S:R:d:e:l:r:h4cm:f:tC"
18 timeout_test=$((timeout_poll * 2 + 1))
20 ethtool_random_on=true
21 tc_delay="$((RANDOM%50))"
22 tc_loss=$((RANDOM%101))
30 connect_per_transfer=1
32 if [ $tc_loss -eq 100 ];then
34 elif [ $tc_loss -ge 10 ]; then
36 elif [ $tc_loss -ge 1 ]; then
43 echo "Usage: $0 [ -a ]"
44 echo -e "\t-d: tc/netem delay in milliseconds, e.g. \"-d 10\" (default random)"
45 echo -e "\t-l: tc/netem loss percentage, e.g. \"-l 0.02\" (default random)"
46 echo -e "\t-r: tc/netem reorder mode, e.g. \"-r 25% 50% gap 5\", use "-r 0" to disable reordering (default random)"
47 echo -e "\t-e: ethtool features to disable, e.g.: \"-e tso -e gso\" (default: randomly disable any of tso/gso/gro)"
48 echo -e "\t-4: IPv4 only: disable IPv6 tests (default: test both IPv4 and IPv6)"
49 echo -e "\t-c: capture packets for each test using tcpdump (default: no capture)"
50 echo -e "\t-f: size of file to transfer in bytes (default random)"
51 echo -e "\t-S: set sndbuf value (default: use kernel default)"
52 echo -e "\t-R: set rcvbuf value (default: use kernel default)"
53 echo -e "\t-m: test mode (poll, sendfile; default: poll)"
54 echo -e "\t-t: also run tests with TCP (use twice to non-fallback tcp)"
55 echo -e "\t-C: enable the MPTCP data checksum"
58 while getopts "$optstring" option;do
65 if [ $OPTARG -ge 0 ];then
68 echo "-d requires numeric argument, got \"$OPTARG\"" 1>&2
73 ethtool_args="$ethtool_args $OPTARG off"
74 ethtool_random_on=false
89 if [ $OPTARG -ge 0 ];then
92 echo "-S requires numeric argument, got \"$OPTARG\"" 1>&2
97 if [ $OPTARG -ge 0 ];then
100 echo "-R requires numeric argument, got \"$OPTARG\"" 1>&2
124 rndh=$(printf %x $sec)-$(mktemp -u XXXXXX)
134 rm -f "$cin_disconnect" "$cout_disconnect"
140 for netns in "$ns1" "$ns2" "$ns3" "$ns4";do
142 rm -f /tmp/$netns.{nstat,out}
146 mptcp_lib_check_mptcp
148 ip -Version > /dev/null 2>&1
150 echo "SKIP: Could not run test without ip tool"
159 cin_disconnect="$cin".disconnect
160 cout_disconnect="$cout".disconnect
163 for i in "$ns1" "$ns2" "$ns3" "$ns4";do
164 ip netns add $i || exit $ksft_skip
165 ip -net $i link set lo up
169 # ns1eth2 ns2eth1 ns2eth3 ns3eth2 ns3eth4 ns4eth3
170 # - drop 1% -> reorder 25%
173 ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth1 netns "$ns2"
174 ip link add ns2eth3 netns "$ns2" type veth peer name ns3eth2 netns "$ns3"
175 ip link add ns3eth4 netns "$ns3" type veth peer name ns4eth3 netns "$ns4"
177 ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth2
178 ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth2 nodad
180 ip -net "$ns1" link set ns1eth2 up
181 ip -net "$ns1" route add default via 10.0.1.2
182 ip -net "$ns1" route add default via dead:beef:1::2
184 ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1
185 ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad
186 ip -net "$ns2" link set ns2eth1 up
188 ip -net "$ns2" addr add 10.0.2.1/24 dev ns2eth3
189 ip -net "$ns2" addr add dead:beef:2::1/64 dev ns2eth3 nodad
190 ip -net "$ns2" link set ns2eth3 up
191 ip -net "$ns2" route add default via 10.0.2.2
192 ip -net "$ns2" route add default via dead:beef:2::2
193 ip netns exec "$ns2" sysctl -q net.ipv4.ip_forward=1
194 ip netns exec "$ns2" sysctl -q net.ipv6.conf.all.forwarding=1
196 ip -net "$ns3" addr add 10.0.2.2/24 dev ns3eth2
197 ip -net "$ns3" addr add dead:beef:2::2/64 dev ns3eth2 nodad
198 ip -net "$ns3" link set ns3eth2 up
200 ip -net "$ns3" addr add 10.0.3.2/24 dev ns3eth4
201 ip -net "$ns3" addr add dead:beef:3::2/64 dev ns3eth4 nodad
202 ip -net "$ns3" link set ns3eth4 up
203 ip -net "$ns3" route add default via 10.0.2.1
204 ip -net "$ns3" route add default via dead:beef:2::1
205 ip netns exec "$ns3" sysctl -q net.ipv4.ip_forward=1
206 ip netns exec "$ns3" sysctl -q net.ipv6.conf.all.forwarding=1
208 ip -net "$ns4" addr add 10.0.3.1/24 dev ns4eth3
209 ip -net "$ns4" addr add dead:beef:3::1/64 dev ns4eth3 nodad
210 ip -net "$ns4" link set ns4eth3 up
211 ip -net "$ns4" route add default via 10.0.3.2
212 ip -net "$ns4" route add default via dead:beef:3::2
215 for i in "$ns1" "$ns2" "$ns3" "$ns4";do
216 ip netns exec $i sysctl -q net.mptcp.checksum_enabled=1
220 set_ethtool_flags() {
225 ip netns exec $ns ethtool -K $dev $flags 2>/dev/null
226 [ $? -eq 0 ] && echo "INFO: set $ns dev $dev: ethtool -K $flags"
229 set_random_ethtool_flags() {
233 local pick1=$((r & 1))
234 local pick2=$((r & 2))
235 local pick3=$((r & 4))
237 [ $pick1 -ne 0 ] && flags="tso off"
238 [ $pick2 -ne 0 ] && flags="$flags gso off"
239 [ $pick3 -ne 0 ] && flags="$flags gro off"
241 [ -z "$flags" ] && return
243 set_ethtool_flags "$1" "$2" "$flags"
246 if $ethtool_random_on;then
247 set_random_ethtool_flags "$ns3" ns3eth2
248 set_random_ethtool_flags "$ns4" ns4eth3
250 set_ethtool_flags "$ns3" ns3eth2 "$ethtool_args"
251 set_ethtool_flags "$ns4" ns4eth3 "$ethtool_args"
257 echo "Trailing bytes are: "
267 cmp "$in" "$out" > /dev/null 2>&1
268 if [ $? -ne 0 ] ;then
269 echo "[ FAIL ] $what does not match (in, out):"
271 print_file_err "$out"
279 check_mptcp_disabled()
281 local disabled_ns="ns_disabled-$rndh"
282 ip netns add ${disabled_ns} || exit $ksft_skip
284 # net.mptcp.enabled should be enabled by default
285 if [ "$(ip netns exec ${disabled_ns} sysctl net.mptcp.enabled | awk '{ print $3 }')" -ne 1 ]; then
286 echo -e "net.mptcp.enabled sysctl is not 1 by default\t\t[ FAIL ]"
290 ip netns exec ${disabled_ns} sysctl -q net.mptcp.enabled=0
293 LC_ALL=C ip netns exec ${disabled_ns} ./mptcp_connect -p 10000 -s MPTCP 127.0.0.1 < "$cin" 2>&1 | \
294 grep -q "^socket: Protocol not available$" && err=1
295 ip netns delete ${disabled_ns}
297 if [ ${err} -eq 0 ]; then
298 echo -e "New MPTCP socket cannot be blocked via sysctl\t\t[ FAIL ]"
303 echo -e "New MPTCP socket can be blocked via sysctl\t\t[ OK ]"
315 local listener_ns="$1"
316 local connector_ns="$2"
317 local connect_addr="$3"
318 local ping_args="-q -c 1"
320 if is_v6 "${connect_addr}"; then
322 ping_args="${ping_args} -6"
325 ip netns exec ${connector_ns} ping ${ping_args} $connect_addr >/dev/null
326 if [ $? -ne 0 ] ; then
327 echo "$listener_ns -> $connect_addr connectivity [ FAIL ]" 1>&2
336 # $1: ns, $2: MIB counter
339 local listener_ns="${1}"
343 ip netns exec "${listener_ns}" \
344 nstat -z -a "${mib}" | \
346 while read a count c rest; do
352 wait_local_port_listen()
354 local listener_ns="${1}"
359 port_hex="$(printf "%04X" "${port}")"
360 for i in $(seq 10); do
361 ip netns exec "${listener_ns}" cat /proc/net/tcp* | \
362 awk "BEGIN {rc=1} {if (\$2 ~ /:${port_hex}\$/ && \$4 ~ /0A/) {rc=0; exit}} END {exit rc}" &&
370 local listener_ns="$1"
371 local connector_ns="$2"
374 local connect_addr="$5"
375 local local_addr="$6"
376 local extra_args="$7"
379 port=$((10000+$TEST_COUNT))
380 TEST_COUNT=$((TEST_COUNT+1))
382 if [ "$rcvbuf" -gt 0 ]; then
383 extra_args="$extra_args -R $rcvbuf"
386 if [ "$sndbuf" -gt 0 ]; then
387 extra_args="$extra_args -S $sndbuf"
390 if [ -n "$testmode" ]; then
391 extra_args="$extra_args -m $testmode"
394 if [ -n "$extra_args" ] && $options_log; then
395 echo "INFO: extra options: $extra_args"
404 addr_port=$(printf "%s:%d" ${connect_addr} ${port})
405 printf "%.3s %-5s -> %.3s (%-20s) %-5s\t" ${connector_ns} ${cl_proto} ${listener_ns} ${addr_port} ${srv_proto}
409 if [ -z $SUDO_USER ] ; then
412 capuser="-Z $SUDO_USER"
415 local capfile="${rndh}-${connector_ns:0:3}-${listener_ns:0:3}-${cl_proto}-${srv_proto}-${connect_addr}-${port}"
416 local capopt="-i any -s 65535 -B 32768 ${capuser}"
418 ip netns exec ${listener_ns} tcpdump ${capopt} -w "${capfile}-listener.pcap" >> "${capout}" 2>&1 &
419 local cappid_listener=$!
421 ip netns exec ${connector_ns} tcpdump ${capopt} -w "${capfile}-connector.pcap" >> "${capout}" 2>&1 &
422 local cappid_connector=$!
427 NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \
429 if [ ${listener_ns} != ${connector_ns} ]; then
430 NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \
434 local stat_synrx_last_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX")
435 local stat_ackrx_last_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableACKRX")
436 local stat_cookietx_last=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesSent")
437 local stat_cookierx_last=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesRecv")
438 local stat_csum_err_s=$(get_mib_counter "${listener_ns}" "MPTcpExtDataCsumErr")
439 local stat_csum_err_c=$(get_mib_counter "${connector_ns}" "MPTcpExtDataCsumErr")
441 timeout ${timeout_test} \
442 ip netns exec ${listener_ns} \
443 ./mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \
444 $extra_args $local_addr < "$sin" > "$sout" &
447 wait_local_port_listen "${listener_ns}" "${port}"
451 timeout ${timeout_test} \
452 ip netns exec ${connector_ns} \
453 ./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
454 $extra_args $connect_addr < "$cin" > "$cout" &
467 kill ${cappid_listener}
468 kill ${cappid_connector}
471 NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \
472 nstat | grep Tcp > /tmp/${listener_ns}.out
473 if [ ${listener_ns} != ${connector_ns} ]; then
474 NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \
475 nstat | grep Tcp > /tmp/${connector_ns}.out
479 duration=$((stop-start))
480 printf "(duration %05sms) " "${duration}"
481 if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
482 echo "[ FAIL ] client exit code $retc, server $rets" 1>&2
483 echo -e "\nnetns ${listener_ns} socket stat for ${port}:" 1>&2
484 ip netns exec ${listener_ns} ss -Menita 1>&2 -o "sport = :$port"
485 cat /tmp/${listener_ns}.out
486 echo -e "\nnetns ${connector_ns} socket stat for ${port}:" 1>&2
487 ip netns exec ${connector_ns} ss -Menita 1>&2 -o "dport = :$port"
488 [ ${listener_ns} != ${connector_ns} ] && cat /tmp/${connector_ns}.out
495 check_transfer $sin $cout "file received by client"
497 check_transfer $cin $sout "file received by server"
500 local stat_synrx_now_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX")
501 local stat_ackrx_now_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableACKRX")
502 local stat_cookietx_now=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesSent")
503 local stat_cookierx_now=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesRecv")
504 local stat_ooo_now=$(get_mib_counter "${listener_ns}" "TcpExtTCPOFOQueue")
506 expect_synrx=$((stat_synrx_last_l))
507 expect_ackrx=$((stat_ackrx_last_l))
509 cookies=$(ip netns exec ${listener_ns} sysctl net.ipv4.tcp_syncookies)
510 cookies=${cookies##*=}
512 if [ ${cl_proto} = "MPTCP" ] && [ ${srv_proto} = "MPTCP" ]; then
513 expect_synrx=$((stat_synrx_last_l+$connect_per_transfer))
514 expect_ackrx=$((stat_ackrx_last_l+$connect_per_transfer))
517 if [ ${stat_synrx_now_l} -lt ${expect_synrx} ]; then
518 printf "[ FAIL ] lower MPC SYN rx (%d) than expected (%d)\n" \
519 "${stat_synrx_now_l}" "${expect_synrx}" 1>&2
522 if [ ${stat_ackrx_now_l} -lt ${expect_ackrx} -a ${stat_ooo_now} -eq 0 ]; then
523 if [ ${stat_ooo_now} -eq 0 ]; then
524 printf "[ FAIL ] lower MPC ACK rx (%d) than expected (%d)\n" \
525 "${stat_ackrx_now_l}" "${expect_ackrx}" 1>&2
528 printf "[ Note ] fallback due to TCP OoO"
533 local csum_err_s=$(get_mib_counter "${listener_ns}" "MPTcpExtDataCsumErr")
534 local csum_err_c=$(get_mib_counter "${connector_ns}" "MPTcpExtDataCsumErr")
536 local csum_err_s_nr=$((csum_err_s - stat_csum_err_s))
537 if [ $csum_err_s_nr -gt 0 ]; then
538 printf "[ FAIL ]\nserver got $csum_err_s_nr data checksum error[s]"
542 local csum_err_c_nr=$((csum_err_c - stat_csum_err_c))
543 if [ $csum_err_c_nr -gt 0 ]; then
544 printf "[ FAIL ]\nclient got $csum_err_c_nr data checksum error[s]"
549 if [ $retc -eq 0 ] && [ $rets -eq 0 ]; then
553 if [ $cookies -eq 2 ];then
554 if [ $stat_cookietx_last -ge $stat_cookietx_now ] ;then
555 printf " WARN: CookieSent: did not advance"
557 if [ $stat_cookierx_last -ge $stat_cookierx_now ] ;then
558 printf " WARN: CookieRecv: did not advance"
561 if [ $stat_cookietx_last -ne $stat_cookietx_now ] ;then
562 printf " WARN: CookieSent: changed"
564 if [ $stat_cookierx_last -ne $stat_cookierx_now ] ;then
565 printf " WARN: CookieRecv: changed"
569 if [ ${stat_synrx_now_l} -gt ${expect_synrx} ]; then
570 printf " WARN: SYNRX: expect %d, got %d (probably retransmissions)" \
571 "${expect_synrx}" "${stat_synrx_now_l}"
573 if [ ${stat_ackrx_now_l} -gt ${expect_ackrx} ]; then
574 printf " WARN: ACKRX: expect %d, got %d (probably retransmissions)" \
575 "${expect_ackrx}" "${stat_ackrx_now_l}"
580 [ $retc -eq 0 ] && [ $rets -eq 0 ]
591 if [ $SIZE -eq 0 ]; then
592 local MAXSIZE=$((1024 * 1024 * 8))
593 local MINSIZE=$((1024 * 256))
595 SIZE=$(((RANDOM * RANDOM + MINSIZE) % MAXSIZE))
598 ksize=$((SIZE / 1024))
599 rem=$((SIZE - (ksize * 1024)))
601 dd if=/dev/urandom of="$name" bs=1024 count=$ksize 2> /dev/null
602 dd if=/dev/urandom conv=notrunc of="$name" bs=1 count=$rem 2> /dev/null
603 echo -e "\nMPTCP_TEST_FILE_END_MARKER" >> "$name"
605 echo "Created $name (size $(du -b "$name")) containing data sent by $who"
610 local listener_ns="$1"
611 local connector_ns="$2"
612 local connect_addr="$3"
614 local extra_args="$5"
617 # skip if test programs are running inside same netns for subsequent runs.
618 if [ $loopback -eq 0 ] && [ ${listener_ns} = ${connector_ns} ]; then
622 # skip if we don't want v6
623 if ! $ipv6 && is_v6 "${connect_addr}"; then
628 if is_v6 "${connect_addr}"; then
634 do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \
635 ${connect_addr} ${local_addr} "${extra_args}"
637 if [ $lret -ne 0 ]; then
642 if [ $do_tcp -eq 0 ]; then
643 # don't bother testing fallback tcp except for loopback case.
644 if [ ${listener_ns} != ${connector_ns} ]; then
649 do_transfer ${listener_ns} ${connector_ns} MPTCP TCP \
650 ${connect_addr} ${local_addr} "${extra_args}"
652 if [ $lret -ne 0 ]; then
657 do_transfer ${listener_ns} ${connector_ns} TCP MPTCP \
658 ${connect_addr} ${local_addr} "${extra_args}"
660 if [ $lret -ne 0 ]; then
665 if [ $do_tcp -gt 1 ] ;then
666 do_transfer ${listener_ns} ${connector_ns} TCP TCP \
667 ${connect_addr} ${local_addr} "${extra_args}"
669 if [ $lret -ne 0 ]; then
680 run_tests_lo $1 $2 $3 0
683 run_test_transparent()
685 local connect_addr="$1"
688 local connector_ns="$ns1"
689 local listener_ns="$ns2"
693 # skip if we don't want v6
694 if ! $ipv6 && is_v6 "${connect_addr}"; then
698 ip netns exec "$listener_ns" nft -f /dev/stdin <<"EOF"
702 type filter hook prerouting priority -150;
704 meta l4proto tcp socket transparent 1 meta mark set 1 accept
705 tcp dport 20000 tproxy to :20000 meta mark set 1 accept
709 if [ $? -ne 0 ]; then
710 echo "SKIP: $msg, could not load nft ruleset"
715 if is_v6 "${connect_addr}"; then
722 ip -net "$listener_ns" $r6flag rule add fwmark 1 lookup 100
723 if [ $? -ne 0 ]; then
724 ip netns exec "$listener_ns" nft flush ruleset
725 echo "SKIP: $msg, ip $r6flag rule failed"
729 ip -net "$listener_ns" route add local $local_addr/0 dev lo table 100
730 if [ $? -ne 0 ]; then
731 ip netns exec "$listener_ns" nft flush ruleset
732 ip -net "$listener_ns" $r6flag rule del fwmark 1 lookup 100
733 echo "SKIP: $msg, ip route add local $local_addr failed"
737 echo "INFO: test $msg"
740 local extra_args="-o TRANSPARENT"
741 do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \
742 ${connect_addr} ${local_addr} "${extra_args}"
745 ip netns exec "$listener_ns" nft flush ruleset
746 ip -net "$listener_ns" $r6flag rule del fwmark 1 lookup 100
747 ip -net "$listener_ns" route del local $local_addr/0 dev lo table 100
749 if [ $lret -ne 0 ]; then
750 echo "FAIL: $msg, mptcp connection error" 1>&2
763 echo "INFO: with peek mode: ${peekmode}"
764 run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 "-P ${peekmode}"
765 run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-P ${peekmode}"
770 echo "INFO: with MPTFO start"
771 ip netns exec "$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 echo "INFO: with MPTFO end"
785 run_tests_disconnect()
790 cat $cin $cin $cin > "$cin".disconnect
792 # force do_transfer to cope with the multiple tranmissions
793 sin="$cin.disconnect"
794 cin="$cin.disconnect"
795 cin_disconnect="$old_cin"
796 connect_per_transfer=3
798 echo "INFO: disconnect"
799 run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 "-I 3 -i $old_cin"
800 run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-I 3 -i $old_cin"
802 # restore previous status
805 cin_disconnect="$cin".disconnect
806 connect_per_transfer=1
812 time_run=$((time_end-time_start))
814 echo "Time: ${time_run} seconds"
821 if [ ${ret} -ne 0 ]; then
822 echo "FAIL: ${msg}" 1>&2
828 make_file "$cin" "client"
829 make_file "$sin" "server"
833 stop_if_error "The kernel configuration is not valid for MPTCP"
835 echo "INFO: validating network environment with pings"
836 for sender in "$ns1" "$ns2" "$ns3" "$ns4";do
837 do_ping "$ns1" $sender 10.0.1.1
838 do_ping "$ns1" $sender dead:beef:1::1
840 do_ping "$ns2" $sender 10.0.1.2
841 do_ping "$ns2" $sender dead:beef:1::2
842 do_ping "$ns2" $sender 10.0.2.1
843 do_ping "$ns2" $sender dead:beef:2::1
845 do_ping "$ns3" $sender 10.0.2.2
846 do_ping "$ns3" $sender dead:beef:2::2
847 do_ping "$ns3" $sender 10.0.3.2
848 do_ping "$ns3" $sender dead:beef:3::2
850 do_ping "$ns4" $sender 10.0.3.1
851 do_ping "$ns4" $sender dead:beef:3::1
854 stop_if_error "Could not even run ping tests"
856 [ -n "$tc_loss" ] && tc -net "$ns2" qdisc add dev ns2eth3 root netem loss random $tc_loss delay ${tc_delay}ms
857 echo -n "INFO: Using loss of $tc_loss "
858 test "$tc_delay" -gt 0 && echo -n "delay $tc_delay ms "
860 reorder_delay=$(($tc_delay / 4))
862 if [ -z "${tc_reorder}" ]; then
863 reorder1=$((RANDOM%10))
864 reorder1=$((100 - reorder1))
865 reorder2=$((RANDOM%100))
867 if [ $reorder_delay -gt 0 ] && [ $reorder1 -lt 100 ] && [ $reorder2 -gt 0 ]; then
868 tc_reorder="reorder ${reorder1}% ${reorder2}%"
869 echo -n "$tc_reorder with delay ${reorder_delay}ms "
871 elif [ "$tc_reorder" = "0" ];then
873 elif [ "$reorder_delay" -gt 0 ];then
874 # reordering requires some delay
875 tc_reorder="reorder $tc_reorder"
876 echo -n "$tc_reorder with delay ${reorder_delay}ms "
881 tc -net "$ns3" qdisc add dev ns3eth4 root netem delay ${reorder_delay}ms $tc_reorder
883 run_tests_lo "$ns1" "$ns1" 10.0.1.1 1
884 stop_if_error "Could not even run loopback test"
886 run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1
887 stop_if_error "Could not even run loopback v6 test"
889 for sender in $ns1 $ns2 $ns3 $ns4;do
890 # ns1<->ns2 is not subject to reordering/tc delays. Use it to test
891 # mptcp syncookie support.
892 if [ $sender = $ns1 ]; then
893 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=2
895 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=1
898 run_tests "$ns1" $sender 10.0.1.1
899 run_tests "$ns1" $sender dead:beef:1::1
901 run_tests "$ns2" $sender 10.0.1.2
902 run_tests "$ns2" $sender dead:beef:1::2
903 run_tests "$ns2" $sender 10.0.2.1
904 run_tests "$ns2" $sender dead:beef:2::1
906 run_tests "$ns3" $sender 10.0.2.2
907 run_tests "$ns3" $sender dead:beef:2::2
908 run_tests "$ns3" $sender 10.0.3.2
909 run_tests "$ns3" $sender dead:beef:3::2
911 run_tests "$ns4" $sender 10.0.3.1
912 run_tests "$ns4" $sender dead:beef:3::1
914 stop_if_error "Tests with $sender as a sender have failed"
917 run_tests_peekmode "saveWithPeek"
918 run_tests_peekmode "saveAfterPeek"
919 stop_if_error "Tests with peek mode have failed"
921 # MPTFO (MultiPath TCP Fatopen tests)
923 stop_if_error "Tests with MPTFO have failed"
925 # connect to ns4 ip address, ns2 should intercept/proxy
926 run_test_transparent 10.0.3.1 "tproxy ipv4"
927 run_test_transparent dead:beef:3::1 "tproxy ipv6"
928 stop_if_error "Tests with tproxy have failed"