1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3 4time_start=$(date +%s) 5 6optstring="S:R:d:e:l:r:h4cm:f:t" 7ret=0 8sin="" 9sout="" 10cin="" 11cout="" 12ksft_skip=4 13capture=false 14timeout=30 15ipv6=true 16ethtool_random_on=true 17tc_delay="$((RANDOM%50))" 18tc_loss=$((RANDOM%101)) 19testmode="" 20sndbuf=0 21rcvbuf=0 22options_log=true 23do_tcp=0 24filesize=0 25 26if [ $tc_loss -eq 100 ];then 27 tc_loss=1% 28elif [ $tc_loss -ge 10 ]; then 29 tc_loss=0.$tc_loss% 30elif [ $tc_loss -ge 1 ]; then 31 tc_loss=0.0$tc_loss% 32else 33 tc_loss="" 34fi 35 36usage() { 37 echo "Usage: $0 [ -a ]" 38 echo -e "\t-d: tc/netem delay in milliseconds, e.g. \"-d 10\" (default random)" 39 echo -e "\t-l: tc/netem loss percentage, e.g. \"-l 0.02\" (default random)" 40 echo -e "\t-r: tc/netem reorder mode, e.g. \"-r 25% 50% gap 5\", use "-r 0" to disable reordering (default random)" 41 echo -e "\t-e: ethtool features to disable, e.g.: \"-e tso -e gso\" (default: randomly disable any of tso/gso/gro)" 42 echo -e "\t-4: IPv4 only: disable IPv6 tests (default: test both IPv4 and IPv6)" 43 echo -e "\t-c: capture packets for each test using tcpdump (default: no capture)" 44 echo -e "\t-f: size of file to transfer in bytes (default random)" 45 echo -e "\t-S: set sndbuf value (default: use kernel default)" 46 echo -e "\t-R: set rcvbuf value (default: use kernel default)" 47 echo -e "\t-m: test mode (poll, sendfile; default: poll)" 48 echo -e "\t-t: also run tests with TCP (use twice to non-fallback tcp)" 49} 50 51while getopts "$optstring" option;do 52 case "$option" in 53 "h") 54 usage $0 55 exit 0 56 ;; 57 "d") 58 if [ $OPTARG -ge 0 ];then 59 tc_delay="$OPTARG" 60 else 61 echo "-d requires numeric argument, got \"$OPTARG\"" 1>&2 62 exit 1 63 fi 64 ;; 65 "e") 66 ethtool_args="$ethtool_args $OPTARG off" 67 ethtool_random_on=false 68 ;; 69 "l") 70 tc_loss="$OPTARG" 71 ;; 72 "r") 73 tc_reorder="$OPTARG" 74 ;; 75 "4") 76 ipv6=false 77 ;; 78 "c") 79 capture=true 80 ;; 81 "S") 82 if [ $OPTARG -ge 0 ];then 83 sndbuf="$OPTARG" 84 else 85 echo "-S requires numeric argument, got \"$OPTARG\"" 1>&2 86 exit 1 87 fi 88 ;; 89 "R") 90 if [ $OPTARG -ge 0 ];then 91 rcvbuf="$OPTARG" 92 else 93 echo "-R requires numeric argument, got \"$OPTARG\"" 1>&2 94 exit 1 95 fi 96 ;; 97 "m") 98 testmode="$OPTARG" 99 ;; 100 "f") 101 filesize="$OPTARG" 102 ;; 103 "t") 104 do_tcp=$((do_tcp+1)) 105 ;; 106 "?") 107 usage $0 108 exit 1 109 ;; 110 esac 111done 112 113sec=$(date +%s) 114rndh=$(printf %x $sec)-$(mktemp -u XXXXXX) 115ns1="ns1-$rndh" 116ns2="ns2-$rndh" 117ns3="ns3-$rndh" 118ns4="ns4-$rndh" 119 120TEST_COUNT=0 121 122cleanup() 123{ 124 rm -f "$cin" "$cout" 125 rm -f "$sin" "$sout" 126 rm -f "$capout" 127 128 local netns 129 for netns in "$ns1" "$ns2" "$ns3" "$ns4";do 130 ip netns del $netns 131 done 132} 133 134ip -Version > /dev/null 2>&1 135if [ $? -ne 0 ];then 136 echo "SKIP: Could not run test without ip tool" 137 exit $ksft_skip 138fi 139 140sin=$(mktemp) 141sout=$(mktemp) 142cin=$(mktemp) 143cout=$(mktemp) 144capout=$(mktemp) 145trap cleanup EXIT 146 147for i in "$ns1" "$ns2" "$ns3" "$ns4";do 148 ip netns add $i || exit $ksft_skip 149 ip -net $i link set lo up 150done 151 152# "$ns1" ns2 ns3 ns4 153# ns1eth2 ns2eth1 ns2eth3 ns3eth2 ns3eth4 ns4eth3 154# - drop 1% -> reorder 25% 155# <- TSO off - 156 157ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth1 netns "$ns2" 158ip link add ns2eth3 netns "$ns2" type veth peer name ns3eth2 netns "$ns3" 159ip link add ns3eth4 netns "$ns3" type veth peer name ns4eth3 netns "$ns4" 160 161ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth2 162ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth2 nodad 163 164ip -net "$ns1" link set ns1eth2 up 165ip -net "$ns1" route add default via 10.0.1.2 166ip -net "$ns1" route add default via dead:beef:1::2 167 168ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1 169ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad 170ip -net "$ns2" link set ns2eth1 up 171 172ip -net "$ns2" addr add 10.0.2.1/24 dev ns2eth3 173ip -net "$ns2" addr add dead:beef:2::1/64 dev ns2eth3 nodad 174ip -net "$ns2" link set ns2eth3 up 175ip -net "$ns2" route add default via 10.0.2.2 176ip -net "$ns2" route add default via dead:beef:2::2 177ip netns exec "$ns2" sysctl -q net.ipv4.ip_forward=1 178ip netns exec "$ns2" sysctl -q net.ipv6.conf.all.forwarding=1 179 180ip -net "$ns3" addr add 10.0.2.2/24 dev ns3eth2 181ip -net "$ns3" addr add dead:beef:2::2/64 dev ns3eth2 nodad 182ip -net "$ns3" link set ns3eth2 up 183 184ip -net "$ns3" addr add 10.0.3.2/24 dev ns3eth4 185ip -net "$ns3" addr add dead:beef:3::2/64 dev ns3eth4 nodad 186ip -net "$ns3" link set ns3eth4 up 187ip -net "$ns3" route add default via 10.0.2.1 188ip -net "$ns3" route add default via dead:beef:2::1 189ip netns exec "$ns3" sysctl -q net.ipv4.ip_forward=1 190ip netns exec "$ns3" sysctl -q net.ipv6.conf.all.forwarding=1 191 192ip -net "$ns4" addr add 10.0.3.1/24 dev ns4eth3 193ip -net "$ns4" addr add dead:beef:3::1/64 dev ns4eth3 nodad 194ip -net "$ns4" link set ns4eth3 up 195ip -net "$ns4" route add default via 10.0.3.2 196ip -net "$ns4" route add default via dead:beef:3::2 197 198set_ethtool_flags() { 199 local ns="$1" 200 local dev="$2" 201 local flags="$3" 202 203 ip netns exec $ns ethtool -K $dev $flags 2>/dev/null 204 [ $? -eq 0 ] && echo "INFO: set $ns dev $dev: ethtool -K $flags" 205} 206 207set_random_ethtool_flags() { 208 local flags="" 209 local r=$RANDOM 210 211 local pick1=$((r & 1)) 212 local pick2=$((r & 2)) 213 local pick3=$((r & 4)) 214 215 [ $pick1 -ne 0 ] && flags="tso off" 216 [ $pick2 -ne 0 ] && flags="$flags gso off" 217 [ $pick3 -ne 0 ] && flags="$flags gro off" 218 219 [ -z "$flags" ] && return 220 221 set_ethtool_flags "$1" "$2" "$flags" 222} 223 224if $ethtool_random_on;then 225 set_random_ethtool_flags "$ns3" ns3eth2 226 set_random_ethtool_flags "$ns4" ns4eth3 227else 228 set_ethtool_flags "$ns3" ns3eth2 "$ethtool_args" 229 set_ethtool_flags "$ns4" ns4eth3 "$ethtool_args" 230fi 231 232print_file_err() 233{ 234 ls -l "$1" 1>&2 235 echo "Trailing bytes are: " 236 tail -c 27 "$1" 237} 238 239check_transfer() 240{ 241 local in=$1 242 local out=$2 243 local what=$3 244 245 cmp "$in" "$out" > /dev/null 2>&1 246 if [ $? -ne 0 ] ;then 247 echo "[ FAIL ] $what does not match (in, out):" 248 print_file_err "$in" 249 print_file_err "$out" 250 251 return 1 252 fi 253 254 return 0 255} 256 257check_mptcp_disabled() 258{ 259 local disabled_ns 260 disabled_ns="ns_disabled-$sech-$(mktemp -u XXXXXX)" 261 ip netns add ${disabled_ns} || exit $ksft_skip 262 263 # net.mptcp.enabled should be enabled by default 264 if [ "$(ip netns exec ${disabled_ns} sysctl net.mptcp.enabled | awk '{ print $3 }')" -ne 1 ]; then 265 echo -e "net.mptcp.enabled sysctl is not 1 by default\t\t[ FAIL ]" 266 ret=1 267 return 1 268 fi 269 ip netns exec ${disabled_ns} sysctl -q net.mptcp.enabled=0 270 271 local err=0 272 LANG=C ip netns exec ${disabled_ns} ./mptcp_connect -t $timeout -p 10000 -s MPTCP 127.0.0.1 < "$cin" 2>&1 | \ 273 grep -q "^socket: Protocol not available$" && err=1 274 ip netns delete ${disabled_ns} 275 276 if [ ${err} -eq 0 ]; then 277 echo -e "New MPTCP socket cannot be blocked via sysctl\t\t[ FAIL ]" 278 ret=1 279 return 1 280 fi 281 282 echo -e "New MPTCP socket can be blocked via sysctl\t\t[ OK ]" 283 return 0 284} 285 286check_mptcp_ulp_setsockopt() 287{ 288 local t retval 289 t="ns_ulp-$sech-$(mktemp -u XXXXXX)" 290 291 ip netns add ${t} || exit $ksft_skip 292 if ! ip netns exec ${t} ./mptcp_connect -u -p 10000 -s TCP 127.0.0.1 2>&1; then 293 printf "setsockopt(..., TCP_ULP, \"mptcp\", ...) allowed\t[ FAIL ]\n" 294 retval=1 295 ret=$retval 296 else 297 printf "setsockopt(..., TCP_ULP, \"mptcp\", ...) blocked\t[ OK ]\n" 298 retval=0 299 fi 300 ip netns del ${t} 301 return $retval 302} 303 304# $1: IP address 305is_v6() 306{ 307 [ -z "${1##*:*}" ] 308} 309 310do_ping() 311{ 312 local listener_ns="$1" 313 local connector_ns="$2" 314 local connect_addr="$3" 315 local ping_args="-q -c 1" 316 317 if is_v6 "${connect_addr}"; then 318 $ipv6 || return 0 319 ping_args="${ping_args} -6" 320 fi 321 322 ip netns exec ${connector_ns} ping ${ping_args} $connect_addr >/dev/null 323 if [ $? -ne 0 ] ; then 324 echo "$listener_ns -> $connect_addr connectivity [ FAIL ]" 1>&2 325 ret=1 326 327 return 1 328 fi 329 330 return 0 331} 332 333# $1: ns, $2: port 334wait_local_port_listen() 335{ 336 local listener_ns="${1}" 337 local port="${2}" 338 339 local port_hex i 340 341 port_hex="$(printf "%04X" "${port}")" 342 for i in $(seq 10); do 343 ip netns exec "${listener_ns}" cat /proc/net/tcp* | \ 344 awk "BEGIN {rc=1} {if (\$2 ~ /:${port_hex}\$/ && \$4 ~ /0A/) {rc=0; exit}} END {exit rc}" && 345 break 346 sleep 0.1 347 done 348} 349 350do_transfer() 351{ 352 local listener_ns="$1" 353 local connector_ns="$2" 354 local cl_proto="$3" 355 local srv_proto="$4" 356 local connect_addr="$5" 357 local local_addr="$6" 358 local extra_args="" 359 360 local port 361 port=$((10000+$TEST_COUNT)) 362 TEST_COUNT=$((TEST_COUNT+1)) 363 364 if [ "$rcvbuf" -gt 0 ]; then 365 extra_args="$extra_args -R $rcvbuf" 366 fi 367 368 if [ "$sndbuf" -gt 0 ]; then 369 extra_args="$extra_args -S $sndbuf" 370 fi 371 372 if [ -n "$testmode" ]; then 373 extra_args="$extra_args -m $testmode" 374 fi 375 376 if [ -n "$extra_args" ] && $options_log; then 377 options_log=false 378 echo "INFO: extra options: $extra_args" 379 fi 380 381 :> "$cout" 382 :> "$sout" 383 :> "$capout" 384 385 local addr_port 386 addr_port=$(printf "%s:%d" ${connect_addr} ${port}) 387 printf "%.3s %-5s -> %.3s (%-20s) %-5s\t" ${connector_ns} ${cl_proto} ${listener_ns} ${addr_port} ${srv_proto} 388 389 if $capture; then 390 local capuser 391 if [ -z $SUDO_USER ] ; then 392 capuser="" 393 else 394 capuser="-Z $SUDO_USER" 395 fi 396 397 local capfile="${rndh}-${connector_ns:0:3}-${listener_ns:0:3}-${cl_proto}-${srv_proto}-${connect_addr}-${port}" 398 local capopt="-i any -s 65535 -B 32768 ${capuser}" 399 400 ip netns exec ${listener_ns} tcpdump ${capopt} -w "${capfile}-listener.pcap" >> "${capout}" 2>&1 & 401 local cappid_listener=$! 402 403 ip netns exec ${connector_ns} tcpdump ${capopt} -w "${capfile}-connector.pcap" >> "${capout}" 2>&1 & 404 local cappid_connector=$! 405 406 sleep 1 407 fi 408 409 local stat_synrx_last_l=$(ip netns exec ${listener_ns} nstat -z -a MPTcpExtMPCapableSYNRX | while read a count c rest ;do echo $count;done) 410 local stat_ackrx_last_l=$(ip netns exec ${listener_ns} nstat -z -a MPTcpExtMPCapableACKRX | while read a count c rest ;do echo $count;done) 411 local stat_cookietx_last=$(ip netns exec ${listener_ns} nstat -z -a TcpExtSyncookiesSent | while read a count c rest ;do echo $count;done) 412 local stat_cookierx_last=$(ip netns exec ${listener_ns} nstat -z -a TcpExtSyncookiesRecv | while read a count c rest ;do echo $count;done) 413 414 ip netns exec ${listener_ns} ./mptcp_connect -t $timeout -l -p $port -s ${srv_proto} $extra_args $local_addr < "$sin" > "$sout" & 415 local spid=$! 416 417 wait_local_port_listen "${listener_ns}" "${port}" 418 419 local start 420 start=$(date +%s%3N) 421 ip netns exec ${connector_ns} ./mptcp_connect -t $timeout -p $port -s ${cl_proto} $extra_args $connect_addr < "$cin" > "$cout" & 422 local cpid=$! 423 424 wait $cpid 425 local retc=$? 426 wait $spid 427 local rets=$? 428 429 local stop 430 stop=$(date +%s%3N) 431 432 if $capture; then 433 sleep 1 434 kill ${cappid_listener} 435 kill ${cappid_connector} 436 fi 437 438 local duration 439 duration=$((stop-start)) 440 duration=$(printf "(duration %05sms)" $duration) 441 if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then 442 echo "$duration [ FAIL ] client exit code $retc, server $rets" 1>&2 443 echo -e "\nnetns ${listener_ns} socket stat for ${port}:" 1>&2 444 ip netns exec ${listener_ns} ss -nita 1>&2 -o "sport = :$port" 445 echo -e "\nnetns ${connector_ns} socket stat for ${port}:" 1>&2 446 ip netns exec ${connector_ns} ss -nita 1>&2 -o "dport = :$port" 447 448 cat "$capout" 449 return 1 450 fi 451 452 check_transfer $sin $cout "file received by client" 453 retc=$? 454 check_transfer $cin $sout "file received by server" 455 rets=$? 456 457 local stat_synrx_now_l=$(ip netns exec ${listener_ns} nstat -z -a MPTcpExtMPCapableSYNRX | while read a count c rest ;do echo $count;done) 458 local stat_ackrx_now_l=$(ip netns exec ${listener_ns} nstat -z -a MPTcpExtMPCapableACKRX | while read a count c rest ;do echo $count;done) 459 460 local stat_cookietx_now=$(ip netns exec ${listener_ns} nstat -z -a TcpExtSyncookiesSent | while read a count c rest ;do echo $count;done) 461 local stat_cookierx_now=$(ip netns exec ${listener_ns} nstat -z -a TcpExtSyncookiesRecv | while read a count c rest ;do echo $count;done) 462 463 expect_synrx=$((stat_synrx_last_l)) 464 expect_ackrx=$((stat_ackrx_last_l)) 465 466 cookies=$(ip netns exec ${listener_ns} sysctl net.ipv4.tcp_syncookies) 467 cookies=${cookies##*=} 468 469 if [ ${cl_proto} = "MPTCP" ] && [ ${srv_proto} = "MPTCP" ]; then 470 expect_synrx=$((stat_synrx_last_l+1)) 471 expect_ackrx=$((stat_ackrx_last_l+1)) 472 fi 473 if [ $cookies -eq 2 ];then 474 if [ $stat_cookietx_last -ge $stat_cookietx_now ] ;then 475 echo "${listener_ns} CookieSent: ${cl_proto} -> ${srv_proto}: did not advance" 476 fi 477 if [ $stat_cookierx_last -ge $stat_cookierx_now ] ;then 478 echo "${listener_ns} CookieRecv: ${cl_proto} -> ${srv_proto}: did not advance" 479 fi 480 else 481 if [ $stat_cookietx_last -ne $stat_cookietx_now ] ;then 482 echo "${listener_ns} CookieSent: ${cl_proto} -> ${srv_proto}: changed" 483 fi 484 if [ $stat_cookierx_last -ne $stat_cookierx_now ] ;then 485 echo "${listener_ns} CookieRecv: ${cl_proto} -> ${srv_proto}: changed" 486 fi 487 fi 488 489 if [ $expect_synrx -ne $stat_synrx_now_l ] ;then 490 echo "${listener_ns} SYNRX: ${cl_proto} -> ${srv_proto}: expect ${expect_synrx}, got ${stat_synrx_now_l}" 491 fi 492 if [ $expect_ackrx -ne $stat_ackrx_now_l ] ;then 493 echo "${listener_ns} ACKRX: ${cl_proto} -> ${srv_proto}: expect ${expect_ackrx}, got ${stat_ackrx_now_l} " 494 fi 495 496 if [ $retc -eq 0 ] && [ $rets -eq 0 ];then 497 echo "$duration [ OK ]" 498 cat "$capout" 499 return 0 500 fi 501 502 cat "$capout" 503 return 1 504} 505 506make_file() 507{ 508 local name=$1 509 local who=$2 510 local SIZE=$filesize 511 local ksize 512 local rem 513 514 if [ $SIZE -eq 0 ]; then 515 local MAXSIZE=$((1024 * 1024 * 8)) 516 local MINSIZE=$((1024 * 256)) 517 518 SIZE=$(((RANDOM * RANDOM + MINSIZE) % MAXSIZE)) 519 fi 520 521 ksize=$((SIZE / 1024)) 522 rem=$((SIZE - (ksize * 1024))) 523 524 dd if=/dev/urandom of="$name" bs=1024 count=$ksize 2> /dev/null 525 dd if=/dev/urandom conv=notrunc of="$name" bs=1 count=$rem 2> /dev/null 526 echo -e "\nMPTCP_TEST_FILE_END_MARKER" >> "$name" 527 528 echo "Created $name (size $(du -b "$name")) containing data sent by $who" 529} 530 531run_tests_lo() 532{ 533 local listener_ns="$1" 534 local connector_ns="$2" 535 local connect_addr="$3" 536 local loopback="$4" 537 local lret=0 538 539 # skip if test programs are running inside same netns for subsequent runs. 540 if [ $loopback -eq 0 ] && [ ${listener_ns} = ${connector_ns} ]; then 541 return 0 542 fi 543 544 # skip if we don't want v6 545 if ! $ipv6 && is_v6 "${connect_addr}"; then 546 return 0 547 fi 548 549 local local_addr 550 if is_v6 "${connect_addr}"; then 551 local_addr="::" 552 else 553 local_addr="0.0.0.0" 554 fi 555 556 do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP ${connect_addr} ${local_addr} 557 lret=$? 558 if [ $lret -ne 0 ]; then 559 ret=$lret 560 return 1 561 fi 562 563 if [ $do_tcp -eq 0 ]; then 564 # don't bother testing fallback tcp except for loopback case. 565 if [ ${listener_ns} != ${connector_ns} ]; then 566 return 0 567 fi 568 fi 569 570 do_transfer ${listener_ns} ${connector_ns} MPTCP TCP ${connect_addr} ${local_addr} 571 lret=$? 572 if [ $lret -ne 0 ]; then 573 ret=$lret 574 return 1 575 fi 576 577 do_transfer ${listener_ns} ${connector_ns} TCP MPTCP ${connect_addr} ${local_addr} 578 lret=$? 579 if [ $lret -ne 0 ]; then 580 ret=$lret 581 return 1 582 fi 583 584 if [ $do_tcp -gt 1 ] ;then 585 do_transfer ${listener_ns} ${connector_ns} TCP TCP ${connect_addr} ${local_addr} 586 lret=$? 587 if [ $lret -ne 0 ]; then 588 ret=$lret 589 return 1 590 fi 591 fi 592 593 return 0 594} 595 596run_tests() 597{ 598 run_tests_lo $1 $2 $3 0 599} 600 601make_file "$cin" "client" 602make_file "$sin" "server" 603 604check_mptcp_disabled 605 606check_mptcp_ulp_setsockopt 607 608echo "INFO: validating network environment with pings" 609for sender in "$ns1" "$ns2" "$ns3" "$ns4";do 610 do_ping "$ns1" $sender 10.0.1.1 611 do_ping "$ns1" $sender dead:beef:1::1 612 613 do_ping "$ns2" $sender 10.0.1.2 614 do_ping "$ns2" $sender dead:beef:1::2 615 do_ping "$ns2" $sender 10.0.2.1 616 do_ping "$ns2" $sender dead:beef:2::1 617 618 do_ping "$ns3" $sender 10.0.2.2 619 do_ping "$ns3" $sender dead:beef:2::2 620 do_ping "$ns3" $sender 10.0.3.2 621 do_ping "$ns3" $sender dead:beef:3::2 622 623 do_ping "$ns4" $sender 10.0.3.1 624 do_ping "$ns4" $sender dead:beef:3::1 625done 626 627[ -n "$tc_loss" ] && tc -net "$ns2" qdisc add dev ns2eth3 root netem loss random $tc_loss delay ${tc_delay}ms 628echo -n "INFO: Using loss of $tc_loss " 629test "$tc_delay" -gt 0 && echo -n "delay $tc_delay ms " 630 631reorder_delay=$(($tc_delay / 4)) 632 633if [ -z "${tc_reorder}" ]; then 634 reorder1=$((RANDOM%10)) 635 reorder1=$((100 - reorder1)) 636 reorder2=$((RANDOM%100)) 637 638 if [ $reorder_delay -gt 0 ] && [ $reorder1 -lt 100 ] && [ $reorder2 -gt 0 ]; then 639 tc_reorder="reorder ${reorder1}% ${reorder2}%" 640 echo -n "$tc_reorder with delay ${reorder_delay}ms " 641 fi 642elif [ "$tc_reorder" = "0" ];then 643 tc_reorder="" 644elif [ "$reorder_delay" -gt 0 ];then 645 # reordering requires some delay 646 tc_reorder="reorder $tc_reorder" 647 echo -n "$tc_reorder with delay ${reorder_delay}ms " 648fi 649 650echo "on ns3eth4" 651 652tc -net "$ns3" qdisc add dev ns3eth4 root netem delay ${reorder_delay}ms $tc_reorder 653 654for sender in $ns1 $ns2 $ns3 $ns4;do 655 run_tests_lo "$ns1" "$sender" 10.0.1.1 1 656 if [ $ret -ne 0 ] ;then 657 echo "FAIL: Could not even run loopback test" 1>&2 658 exit $ret 659 fi 660 run_tests_lo "$ns1" $sender dead:beef:1::1 1 661 if [ $ret -ne 0 ] ;then 662 echo "FAIL: Could not even run loopback v6 test" 2>&1 663 exit $ret 664 fi 665 666 # ns1<->ns2 is not subject to reordering/tc delays. Use it to test 667 # mptcp syncookie support. 668 if [ $sender = $ns1 ]; then 669 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=2 670 else 671 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=1 672 fi 673 674 run_tests "$ns2" $sender 10.0.1.2 675 run_tests "$ns2" $sender dead:beef:1::2 676 run_tests "$ns2" $sender 10.0.2.1 677 run_tests "$ns2" $sender dead:beef:2::1 678 679 run_tests "$ns3" $sender 10.0.2.2 680 run_tests "$ns3" $sender dead:beef:2::2 681 run_tests "$ns3" $sender 10.0.3.2 682 run_tests "$ns3" $sender dead:beef:3::2 683 684 run_tests "$ns4" $sender 10.0.3.1 685 run_tests "$ns4" $sender dead:beef:3::1 686done 687 688time_end=$(date +%s) 689time_run=$((time_end-time_start)) 690 691echo "Time: ${time_run} seconds" 692 693exit $ret 694