1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3 4time_start=$(date +%s) 5 6optstring="S:R:d:e:l:r:h4cm:f:t" 7ret=0 8sin="" 9sout="" 10cin="" 11cout="" 12ksft_skip=4 13capture=false 14timeout_poll=30 15timeout_test=$((timeout_poll * 2 + 1)) 16ipv6=true 17ethtool_random_on=true 18tc_delay="$((RANDOM%50))" 19tc_loss=$((RANDOM%101)) 20testmode="" 21sndbuf=0 22rcvbuf=0 23options_log=true 24do_tcp=0 25filesize=0 26 27if [ $tc_loss -eq 100 ];then 28 tc_loss=1% 29elif [ $tc_loss -ge 10 ]; then 30 tc_loss=0.$tc_loss% 31elif [ $tc_loss -ge 1 ]; then 32 tc_loss=0.0$tc_loss% 33else 34 tc_loss="" 35fi 36 37usage() { 38 echo "Usage: $0 [ -a ]" 39 echo -e "\t-d: tc/netem delay in milliseconds, e.g. \"-d 10\" (default random)" 40 echo -e "\t-l: tc/netem loss percentage, e.g. \"-l 0.02\" (default random)" 41 echo -e "\t-r: tc/netem reorder mode, e.g. \"-r 25% 50% gap 5\", use "-r 0" to disable reordering (default random)" 42 echo -e "\t-e: ethtool features to disable, e.g.: \"-e tso -e gso\" (default: randomly disable any of tso/gso/gro)" 43 echo -e "\t-4: IPv4 only: disable IPv6 tests (default: test both IPv4 and IPv6)" 44 echo -e "\t-c: capture packets for each test using tcpdump (default: no capture)" 45 echo -e "\t-f: size of file to transfer in bytes (default random)" 46 echo -e "\t-S: set sndbuf value (default: use kernel default)" 47 echo -e "\t-R: set rcvbuf value (default: use kernel default)" 48 echo -e "\t-m: test mode (poll, sendfile; default: poll)" 49 echo -e "\t-t: also run tests with TCP (use twice to non-fallback tcp)" 50} 51 52while getopts "$optstring" option;do 53 case "$option" in 54 "h") 55 usage $0 56 exit 0 57 ;; 58 "d") 59 if [ $OPTARG -ge 0 ];then 60 tc_delay="$OPTARG" 61 else 62 echo "-d requires numeric argument, got \"$OPTARG\"" 1>&2 63 exit 1 64 fi 65 ;; 66 "e") 67 ethtool_args="$ethtool_args $OPTARG off" 68 ethtool_random_on=false 69 ;; 70 "l") 71 tc_loss="$OPTARG" 72 ;; 73 "r") 74 tc_reorder="$OPTARG" 75 ;; 76 "4") 77 ipv6=false 78 ;; 79 "c") 80 capture=true 81 ;; 82 "S") 83 if [ $OPTARG -ge 0 ];then 84 sndbuf="$OPTARG" 85 else 86 echo "-S requires numeric argument, got \"$OPTARG\"" 1>&2 87 exit 1 88 fi 89 ;; 90 "R") 91 if [ $OPTARG -ge 0 ];then 92 rcvbuf="$OPTARG" 93 else 94 echo "-R requires numeric argument, got \"$OPTARG\"" 1>&2 95 exit 1 96 fi 97 ;; 98 "m") 99 testmode="$OPTARG" 100 ;; 101 "f") 102 filesize="$OPTARG" 103 ;; 104 "t") 105 do_tcp=$((do_tcp+1)) 106 ;; 107 "?") 108 usage $0 109 exit 1 110 ;; 111 esac 112done 113 114sec=$(date +%s) 115rndh=$(printf %x $sec)-$(mktemp -u XXXXXX) 116ns1="ns1-$rndh" 117ns2="ns2-$rndh" 118ns3="ns3-$rndh" 119ns4="ns4-$rndh" 120 121TEST_COUNT=0 122 123cleanup() 124{ 125 rm -f "$cin" "$cout" 126 rm -f "$sin" "$sout" 127 rm -f "$capout" 128 129 local netns 130 for netns in "$ns1" "$ns2" "$ns3" "$ns4";do 131 ip netns del $netns 132 rm -f /tmp/$netns.{nstat,out} 133 done 134} 135 136ip -Version > /dev/null 2>&1 137if [ $? -ne 0 ];then 138 echo "SKIP: Could not run test without ip tool" 139 exit $ksft_skip 140fi 141 142sin=$(mktemp) 143sout=$(mktemp) 144cin=$(mktemp) 145cout=$(mktemp) 146capout=$(mktemp) 147trap cleanup EXIT 148 149for i in "$ns1" "$ns2" "$ns3" "$ns4";do 150 ip netns add $i || exit $ksft_skip 151 ip -net $i link set lo up 152done 153 154# "$ns1" ns2 ns3 ns4 155# ns1eth2 ns2eth1 ns2eth3 ns3eth2 ns3eth4 ns4eth3 156# - drop 1% -> reorder 25% 157# <- TSO off - 158 159ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth1 netns "$ns2" 160ip link add ns2eth3 netns "$ns2" type veth peer name ns3eth2 netns "$ns3" 161ip link add ns3eth4 netns "$ns3" type veth peer name ns4eth3 netns "$ns4" 162 163ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth2 164ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth2 nodad 165 166ip -net "$ns1" link set ns1eth2 up 167ip -net "$ns1" route add default via 10.0.1.2 168ip -net "$ns1" route add default via dead:beef:1::2 169 170ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1 171ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad 172ip -net "$ns2" link set ns2eth1 up 173 174ip -net "$ns2" addr add 10.0.2.1/24 dev ns2eth3 175ip -net "$ns2" addr add dead:beef:2::1/64 dev ns2eth3 nodad 176ip -net "$ns2" link set ns2eth3 up 177ip -net "$ns2" route add default via 10.0.2.2 178ip -net "$ns2" route add default via dead:beef:2::2 179ip netns exec "$ns2" sysctl -q net.ipv4.ip_forward=1 180ip netns exec "$ns2" sysctl -q net.ipv6.conf.all.forwarding=1 181 182ip -net "$ns3" addr add 10.0.2.2/24 dev ns3eth2 183ip -net "$ns3" addr add dead:beef:2::2/64 dev ns3eth2 nodad 184ip -net "$ns3" link set ns3eth2 up 185 186ip -net "$ns3" addr add 10.0.3.2/24 dev ns3eth4 187ip -net "$ns3" addr add dead:beef:3::2/64 dev ns3eth4 nodad 188ip -net "$ns3" link set ns3eth4 up 189ip -net "$ns3" route add default via 10.0.2.1 190ip -net "$ns3" route add default via dead:beef:2::1 191ip netns exec "$ns3" sysctl -q net.ipv4.ip_forward=1 192ip netns exec "$ns3" sysctl -q net.ipv6.conf.all.forwarding=1 193 194ip -net "$ns4" addr add 10.0.3.1/24 dev ns4eth3 195ip -net "$ns4" addr add dead:beef:3::1/64 dev ns4eth3 nodad 196ip -net "$ns4" link set ns4eth3 up 197ip -net "$ns4" route add default via 10.0.3.2 198ip -net "$ns4" route add default via dead:beef:3::2 199 200set_ethtool_flags() { 201 local ns="$1" 202 local dev="$2" 203 local flags="$3" 204 205 ip netns exec $ns ethtool -K $dev $flags 2>/dev/null 206 [ $? -eq 0 ] && echo "INFO: set $ns dev $dev: ethtool -K $flags" 207} 208 209set_random_ethtool_flags() { 210 local flags="" 211 local r=$RANDOM 212 213 local pick1=$((r & 1)) 214 local pick2=$((r & 2)) 215 local pick3=$((r & 4)) 216 217 [ $pick1 -ne 0 ] && flags="tso off" 218 [ $pick2 -ne 0 ] && flags="$flags gso off" 219 [ $pick3 -ne 0 ] && flags="$flags gro off" 220 221 [ -z "$flags" ] && return 222 223 set_ethtool_flags "$1" "$2" "$flags" 224} 225 226if $ethtool_random_on;then 227 set_random_ethtool_flags "$ns3" ns3eth2 228 set_random_ethtool_flags "$ns4" ns4eth3 229else 230 set_ethtool_flags "$ns3" ns3eth2 "$ethtool_args" 231 set_ethtool_flags "$ns4" ns4eth3 "$ethtool_args" 232fi 233 234print_file_err() 235{ 236 ls -l "$1" 1>&2 237 echo "Trailing bytes are: " 238 tail -c 27 "$1" 239} 240 241check_transfer() 242{ 243 local in=$1 244 local out=$2 245 local what=$3 246 247 cmp "$in" "$out" > /dev/null 2>&1 248 if [ $? -ne 0 ] ;then 249 echo "[ FAIL ] $what does not match (in, out):" 250 print_file_err "$in" 251 print_file_err "$out" 252 253 return 1 254 fi 255 256 return 0 257} 258 259check_mptcp_disabled() 260{ 261 local disabled_ns 262 disabled_ns="ns_disabled-$sech-$(mktemp -u XXXXXX)" 263 ip netns add ${disabled_ns} || exit $ksft_skip 264 265 # net.mptcp.enabled should be enabled by default 266 if [ "$(ip netns exec ${disabled_ns} sysctl net.mptcp.enabled | awk '{ print $3 }')" -ne 1 ]; then 267 echo -e "net.mptcp.enabled sysctl is not 1 by default\t\t[ FAIL ]" 268 ret=1 269 return 1 270 fi 271 ip netns exec ${disabled_ns} sysctl -q net.mptcp.enabled=0 272 273 local err=0 274 LC_ALL=C ip netns exec ${disabled_ns} ./mptcp_connect -p 10000 -s MPTCP 127.0.0.1 < "$cin" 2>&1 | \ 275 grep -q "^socket: Protocol not available$" && err=1 276 ip netns delete ${disabled_ns} 277 278 if [ ${err} -eq 0 ]; then 279 echo -e "New MPTCP socket cannot be blocked via sysctl\t\t[ FAIL ]" 280 ret=1 281 return 1 282 fi 283 284 echo -e "New MPTCP socket can be blocked via sysctl\t\t[ OK ]" 285 return 0 286} 287 288check_mptcp_ulp_setsockopt() 289{ 290 local t retval 291 t="ns_ulp-$sech-$(mktemp -u XXXXXX)" 292 293 ip netns add ${t} || exit $ksft_skip 294 if ! ip netns exec ${t} ./mptcp_connect -u -p 10000 -s TCP 127.0.0.1 2>&1; then 295 printf "setsockopt(..., TCP_ULP, \"mptcp\", ...) allowed\t[ FAIL ]\n" 296 retval=1 297 ret=$retval 298 else 299 printf "setsockopt(..., TCP_ULP, \"mptcp\", ...) blocked\t[ OK ]\n" 300 retval=0 301 fi 302 ip netns del ${t} 303 return $retval 304} 305 306# $1: IP address 307is_v6() 308{ 309 [ -z "${1##*:*}" ] 310} 311 312do_ping() 313{ 314 local listener_ns="$1" 315 local connector_ns="$2" 316 local connect_addr="$3" 317 local ping_args="-q -c 1" 318 319 if is_v6 "${connect_addr}"; then 320 $ipv6 || return 0 321 ping_args="${ping_args} -6" 322 fi 323 324 ip netns exec ${connector_ns} ping ${ping_args} $connect_addr >/dev/null 325 if [ $? -ne 0 ] ; then 326 echo "$listener_ns -> $connect_addr connectivity [ FAIL ]" 1>&2 327 ret=1 328 329 return 1 330 fi 331 332 return 0 333} 334 335# $1: ns, $2: MIB counter 336get_mib_counter() 337{ 338 local listener_ns="${1}" 339 local mib="${2}" 340 341 # strip the header 342 ip netns exec "${listener_ns}" \ 343 nstat -z -a "${mib}" | \ 344 tail -n+2 | \ 345 while read a count c rest; do 346 echo $count 347 done 348} 349 350# $1: ns, $2: port 351wait_local_port_listen() 352{ 353 local listener_ns="${1}" 354 local port="${2}" 355 356 local port_hex i 357 358 port_hex="$(printf "%04X" "${port}")" 359 for i in $(seq 10); do 360 ip netns exec "${listener_ns}" cat /proc/net/tcp* | \ 361 awk "BEGIN {rc=1} {if (\$2 ~ /:${port_hex}\$/ && \$4 ~ /0A/) {rc=0; exit}} END {exit rc}" && 362 break 363 sleep 0.1 364 done 365} 366 367do_transfer() 368{ 369 local listener_ns="$1" 370 local connector_ns="$2" 371 local cl_proto="$3" 372 local srv_proto="$4" 373 local connect_addr="$5" 374 local local_addr="$6" 375 local extra_args="$7" 376 377 local port 378 port=$((10000+$TEST_COUNT)) 379 TEST_COUNT=$((TEST_COUNT+1)) 380 381 if [ "$rcvbuf" -gt 0 ]; then 382 extra_args="$extra_args -R $rcvbuf" 383 fi 384 385 if [ "$sndbuf" -gt 0 ]; then 386 extra_args="$extra_args -S $sndbuf" 387 fi 388 389 if [ -n "$testmode" ]; then 390 extra_args="$extra_args -m $testmode" 391 fi 392 393 if [ -n "$extra_args" ] && $options_log; then 394 echo "INFO: extra options: $extra_args" 395 fi 396 options_log=false 397 398 :> "$cout" 399 :> "$sout" 400 :> "$capout" 401 402 local addr_port 403 addr_port=$(printf "%s:%d" ${connect_addr} ${port}) 404 printf "%.3s %-5s -> %.3s (%-20s) %-5s\t" ${connector_ns} ${cl_proto} ${listener_ns} ${addr_port} ${srv_proto} 405 406 if $capture; then 407 local capuser 408 if [ -z $SUDO_USER ] ; then 409 capuser="" 410 else 411 capuser="-Z $SUDO_USER" 412 fi 413 414 local capfile="${rndh}-${connector_ns:0:3}-${listener_ns:0:3}-${cl_proto}-${srv_proto}-${connect_addr}-${port}" 415 local capopt="-i any -s 65535 -B 32768 ${capuser}" 416 417 ip netns exec ${listener_ns} tcpdump ${capopt} -w "${capfile}-listener.pcap" >> "${capout}" 2>&1 & 418 local cappid_listener=$! 419 420 ip netns exec ${connector_ns} tcpdump ${capopt} -w "${capfile}-connector.pcap" >> "${capout}" 2>&1 & 421 local cappid_connector=$! 422 423 sleep 1 424 fi 425 426 NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \ 427 nstat -n 428 if [ ${listener_ns} != ${connector_ns} ]; then 429 NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \ 430 nstat -n 431 fi 432 433 local stat_synrx_last_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX") 434 local stat_ackrx_last_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableACKRX") 435 local stat_cookietx_last=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesSent") 436 local stat_cookierx_last=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesRecv") 437 438 timeout ${timeout_test} \ 439 ip netns exec ${listener_ns} \ 440 ./mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \ 441 $extra_args $local_addr < "$sin" > "$sout" & 442 local spid=$! 443 444 wait_local_port_listen "${listener_ns}" "${port}" 445 446 local start 447 start=$(date +%s%3N) 448 timeout ${timeout_test} \ 449 ip netns exec ${connector_ns} \ 450 ./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \ 451 $extra_args $connect_addr < "$cin" > "$cout" & 452 local cpid=$! 453 454 wait $cpid 455 local retc=$? 456 wait $spid 457 local rets=$? 458 459 local stop 460 stop=$(date +%s%3N) 461 462 if $capture; then 463 sleep 1 464 kill ${cappid_listener} 465 kill ${cappid_connector} 466 fi 467 468 NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \ 469 nstat | grep Tcp > /tmp/${listener_ns}.out 470 if [ ${listener_ns} != ${connector_ns} ]; then 471 NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \ 472 nstat | grep Tcp > /tmp/${connector_ns}.out 473 fi 474 475 local duration 476 duration=$((stop-start)) 477 printf "(duration %05sms) " "${duration}" 478 if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then 479 echo "[ FAIL ] client exit code $retc, server $rets" 1>&2 480 echo -e "\nnetns ${listener_ns} socket stat for ${port}:" 1>&2 481 ip netns exec ${listener_ns} ss -Menita 1>&2 -o "sport = :$port" 482 cat /tmp/${listener_ns}.out 483 echo -e "\nnetns ${connector_ns} socket stat for ${port}:" 1>&2 484 ip netns exec ${connector_ns} ss -Menita 1>&2 -o "dport = :$port" 485 [ ${listener_ns} != ${connector_ns} ] && cat /tmp/${connector_ns}.out 486 487 echo 488 cat "$capout" 489 return 1 490 fi 491 492 check_transfer $sin $cout "file received by client" 493 retc=$? 494 check_transfer $cin $sout "file received by server" 495 rets=$? 496 497 local stat_synrx_now_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX") 498 local stat_ackrx_now_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableACKRX") 499 local stat_cookietx_now=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesSent") 500 local stat_cookierx_now=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesRecv") 501 local stat_ooo_now=$(get_mib_counter "${listener_ns}" "TcpExtTCPOFOQueue") 502 503 expect_synrx=$((stat_synrx_last_l)) 504 expect_ackrx=$((stat_ackrx_last_l)) 505 506 cookies=$(ip netns exec ${listener_ns} sysctl net.ipv4.tcp_syncookies) 507 cookies=${cookies##*=} 508 509 if [ ${cl_proto} = "MPTCP" ] && [ ${srv_proto} = "MPTCP" ]; then 510 expect_synrx=$((stat_synrx_last_l+1)) 511 expect_ackrx=$((stat_ackrx_last_l+1)) 512 fi 513 514 if [ ${stat_synrx_now_l} -lt ${expect_synrx} ]; then 515 printf "[ FAIL ] lower MPC SYN rx (%d) than expected (%d)\n" \ 516 "${stat_synrx_now_l}" "${expect_synrx}" 1>&2 517 retc=1 518 fi 519 if [ ${stat_ackrx_now_l} -lt ${expect_ackrx} -a ${stat_ooo_now} -eq 0 ]; then 520 if [ ${stat_ooo_now} -eq 0 ]; then 521 printf "[ FAIL ] lower MPC ACK rx (%d) than expected (%d)\n" \ 522 "${stat_ackrx_now_l}" "${expect_ackrx}" 1>&2 523 rets=1 524 else 525 printf "[ Note ] fallback due to TCP OoO" 526 fi 527 fi 528 529 if [ $retc -eq 0 ] && [ $rets -eq 0 ]; then 530 printf "[ OK ]" 531 fi 532 533 if [ $cookies -eq 2 ];then 534 if [ $stat_cookietx_last -ge $stat_cookietx_now ] ;then 535 printf " WARN: CookieSent: did not advance" 536 fi 537 if [ $stat_cookierx_last -ge $stat_cookierx_now ] ;then 538 printf " WARN: CookieRecv: did not advance" 539 fi 540 else 541 if [ $stat_cookietx_last -ne $stat_cookietx_now ] ;then 542 printf " WARN: CookieSent: changed" 543 fi 544 if [ $stat_cookierx_last -ne $stat_cookierx_now ] ;then 545 printf " WARN: CookieRecv: changed" 546 fi 547 fi 548 549 if [ ${stat_synrx_now_l} -gt ${expect_synrx} ]; then 550 printf " WARN: SYNRX: expect %d, got %d (probably retransmissions)" \ 551 "${expect_synrx}" "${stat_synrx_now_l}" 552 fi 553 if [ ${stat_ackrx_now_l} -gt ${expect_ackrx} ]; then 554 printf " WARN: ACKRX: expect %d, got %d (probably retransmissions)" \ 555 "${expect_ackrx}" "${stat_ackrx_now_l}" 556 fi 557 558 echo 559 cat "$capout" 560 [ $retc -eq 0 ] && [ $rets -eq 0 ] 561} 562 563make_file() 564{ 565 local name=$1 566 local who=$2 567 local SIZE=$filesize 568 local ksize 569 local rem 570 571 if [ $SIZE -eq 0 ]; then 572 local MAXSIZE=$((1024 * 1024 * 8)) 573 local MINSIZE=$((1024 * 256)) 574 575 SIZE=$(((RANDOM * RANDOM + MINSIZE) % MAXSIZE)) 576 fi 577 578 ksize=$((SIZE / 1024)) 579 rem=$((SIZE - (ksize * 1024))) 580 581 dd if=/dev/urandom of="$name" bs=1024 count=$ksize 2> /dev/null 582 dd if=/dev/urandom conv=notrunc of="$name" bs=1 count=$rem 2> /dev/null 583 echo -e "\nMPTCP_TEST_FILE_END_MARKER" >> "$name" 584 585 echo "Created $name (size $(du -b "$name")) containing data sent by $who" 586} 587 588run_tests_lo() 589{ 590 local listener_ns="$1" 591 local connector_ns="$2" 592 local connect_addr="$3" 593 local loopback="$4" 594 local extra_args="$5" 595 local lret=0 596 597 # skip if test programs are running inside same netns for subsequent runs. 598 if [ $loopback -eq 0 ] && [ ${listener_ns} = ${connector_ns} ]; then 599 return 0 600 fi 601 602 # skip if we don't want v6 603 if ! $ipv6 && is_v6 "${connect_addr}"; then 604 return 0 605 fi 606 607 local local_addr 608 if is_v6 "${connect_addr}"; then 609 local_addr="::" 610 else 611 local_addr="0.0.0.0" 612 fi 613 614 do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \ 615 ${connect_addr} ${local_addr} "${extra_args}" 616 lret=$? 617 if [ $lret -ne 0 ]; then 618 ret=$lret 619 return 1 620 fi 621 622 if [ $do_tcp -eq 0 ]; then 623 # don't bother testing fallback tcp except for loopback case. 624 if [ ${listener_ns} != ${connector_ns} ]; then 625 return 0 626 fi 627 fi 628 629 do_transfer ${listener_ns} ${connector_ns} MPTCP TCP \ 630 ${connect_addr} ${local_addr} "${extra_args}" 631 lret=$? 632 if [ $lret -ne 0 ]; then 633 ret=$lret 634 return 1 635 fi 636 637 do_transfer ${listener_ns} ${connector_ns} TCP MPTCP \ 638 ${connect_addr} ${local_addr} "${extra_args}" 639 lret=$? 640 if [ $lret -ne 0 ]; then 641 ret=$lret 642 return 1 643 fi 644 645 if [ $do_tcp -gt 1 ] ;then 646 do_transfer ${listener_ns} ${connector_ns} TCP TCP \ 647 ${connect_addr} ${local_addr} "${extra_args}" 648 lret=$? 649 if [ $lret -ne 0 ]; then 650 ret=$lret 651 return 1 652 fi 653 fi 654 655 return 0 656} 657 658run_tests() 659{ 660 run_tests_lo $1 $2 $3 0 661} 662 663run_tests_peekmode() 664{ 665 local peekmode="$1" 666 667 echo "INFO: with peek mode: ${peekmode}" 668 run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 "-P ${peekmode}" 669 run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-P ${peekmode}" 670} 671 672make_file "$cin" "client" 673make_file "$sin" "server" 674 675check_mptcp_disabled 676 677check_mptcp_ulp_setsockopt 678 679echo "INFO: validating network environment with pings" 680for sender in "$ns1" "$ns2" "$ns3" "$ns4";do 681 do_ping "$ns1" $sender 10.0.1.1 682 do_ping "$ns1" $sender dead:beef:1::1 683 684 do_ping "$ns2" $sender 10.0.1.2 685 do_ping "$ns2" $sender dead:beef:1::2 686 do_ping "$ns2" $sender 10.0.2.1 687 do_ping "$ns2" $sender dead:beef:2::1 688 689 do_ping "$ns3" $sender 10.0.2.2 690 do_ping "$ns3" $sender dead:beef:2::2 691 do_ping "$ns3" $sender 10.0.3.2 692 do_ping "$ns3" $sender dead:beef:3::2 693 694 do_ping "$ns4" $sender 10.0.3.1 695 do_ping "$ns4" $sender dead:beef:3::1 696done 697 698[ -n "$tc_loss" ] && tc -net "$ns2" qdisc add dev ns2eth3 root netem loss random $tc_loss delay ${tc_delay}ms 699echo -n "INFO: Using loss of $tc_loss " 700test "$tc_delay" -gt 0 && echo -n "delay $tc_delay ms " 701 702reorder_delay=$(($tc_delay / 4)) 703 704if [ -z "${tc_reorder}" ]; then 705 reorder1=$((RANDOM%10)) 706 reorder1=$((100 - reorder1)) 707 reorder2=$((RANDOM%100)) 708 709 if [ $reorder_delay -gt 0 ] && [ $reorder1 -lt 100 ] && [ $reorder2 -gt 0 ]; then 710 tc_reorder="reorder ${reorder1}% ${reorder2}%" 711 echo -n "$tc_reorder with delay ${reorder_delay}ms " 712 fi 713elif [ "$tc_reorder" = "0" ];then 714 tc_reorder="" 715elif [ "$reorder_delay" -gt 0 ];then 716 # reordering requires some delay 717 tc_reorder="reorder $tc_reorder" 718 echo -n "$tc_reorder with delay ${reorder_delay}ms " 719fi 720 721echo "on ns3eth4" 722 723tc -net "$ns3" qdisc add dev ns3eth4 root netem delay ${reorder_delay}ms $tc_reorder 724 725for sender in $ns1 $ns2 $ns3 $ns4;do 726 run_tests_lo "$ns1" "$sender" 10.0.1.1 1 727 if [ $ret -ne 0 ] ;then 728 echo "FAIL: Could not even run loopback test" 1>&2 729 exit $ret 730 fi 731 run_tests_lo "$ns1" $sender dead:beef:1::1 1 732 if [ $ret -ne 0 ] ;then 733 echo "FAIL: Could not even run loopback v6 test" 2>&1 734 exit $ret 735 fi 736 737 # ns1<->ns2 is not subject to reordering/tc delays. Use it to test 738 # mptcp syncookie support. 739 if [ $sender = $ns1 ]; then 740 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=2 741 else 742 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=1 743 fi 744 745 run_tests "$ns2" $sender 10.0.1.2 746 run_tests "$ns2" $sender dead:beef:1::2 747 run_tests "$ns2" $sender 10.0.2.1 748 run_tests "$ns2" $sender dead:beef:2::1 749 750 run_tests "$ns3" $sender 10.0.2.2 751 run_tests "$ns3" $sender dead:beef:2::2 752 run_tests "$ns3" $sender 10.0.3.2 753 run_tests "$ns3" $sender dead:beef:3::2 754 755 run_tests "$ns4" $sender 10.0.3.1 756 run_tests "$ns4" $sender dead:beef:3::1 757done 758 759run_tests_peekmode "saveWithPeek" 760run_tests_peekmode "saveAfterPeek" 761 762time_end=$(date +%s) 763time_run=$((time_end-time_start)) 764 765echo "Time: ${time_run} seconds" 766 767exit $ret 768