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::2 199 200# use TCP syn cookies, even if no flooding was detected. 201ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=2 202 203set_ethtool_flags() { 204 local ns="$1" 205 local dev="$2" 206 local flags="$3" 207 208 ip netns exec $ns ethtool -K $dev $flags 2>/dev/null 209 [ $? -eq 0 ] && echo "INFO: set $ns dev $dev: ethtool -K $flags" 210} 211 212set_random_ethtool_flags() { 213 local flags="" 214 local r=$RANDOM 215 216 local pick1=$((r & 1)) 217 local pick2=$((r & 2)) 218 local pick3=$((r & 4)) 219 220 [ $pick1 -ne 0 ] && flags="tso off" 221 [ $pick2 -ne 0 ] && flags="$flags gso off" 222 [ $pick3 -ne 0 ] && flags="$flags gro off" 223 224 [ -z "$flags" ] && return 225 226 set_ethtool_flags "$1" "$2" "$flags" 227} 228 229if $ethtool_random_on;then 230 set_random_ethtool_flags "$ns3" ns3eth2 231 set_random_ethtool_flags "$ns4" ns4eth3 232else 233 set_ethtool_flags "$ns3" ns3eth2 "$ethtool_args" 234 set_ethtool_flags "$ns4" ns4eth3 "$ethtool_args" 235fi 236 237print_file_err() 238{ 239 ls -l "$1" 1>&2 240 echo "Trailing bytes are: " 241 tail -c 27 "$1" 242} 243 244check_transfer() 245{ 246 local in=$1 247 local out=$2 248 local what=$3 249 250 cmp "$in" "$out" > /dev/null 2>&1 251 if [ $? -ne 0 ] ;then 252 echo "[ FAIL ] $what does not match (in, out):" 253 print_file_err "$in" 254 print_file_err "$out" 255 256 return 1 257 fi 258 259 return 0 260} 261 262check_mptcp_disabled() 263{ 264 local disabled_ns 265 disabled_ns="ns_disabled-$sech-$(mktemp -u XXXXXX)" 266 ip netns add ${disabled_ns} || exit $ksft_skip 267 268 # net.mptcp.enabled should be enabled by default 269 if [ "$(ip netns exec ${disabled_ns} sysctl net.mptcp.enabled | awk '{ print $3 }')" -ne 1 ]; then 270 echo -e "net.mptcp.enabled sysctl is not 1 by default\t\t[ FAIL ]" 271 ret=1 272 return 1 273 fi 274 ip netns exec ${disabled_ns} sysctl -q net.mptcp.enabled=0 275 276 local err=0 277 LC_ALL=C ip netns exec ${disabled_ns} ./mptcp_connect -p 10000 -s MPTCP 127.0.0.1 < "$cin" 2>&1 | \ 278 grep -q "^socket: Protocol not available$" && err=1 279 ip netns delete ${disabled_ns} 280 281 if [ ${err} -eq 0 ]; then 282 echo -e "New MPTCP socket cannot be blocked via sysctl\t\t[ FAIL ]" 283 ret=1 284 return 1 285 fi 286 287 echo -e "New MPTCP socket can be blocked via sysctl\t\t[ OK ]" 288 return 0 289} 290 291check_mptcp_ulp_setsockopt() 292{ 293 local t retval 294 t="ns_ulp-$sech-$(mktemp -u XXXXXX)" 295 296 ip netns add ${t} || exit $ksft_skip 297 if ! ip netns exec ${t} ./mptcp_connect -u -p 10000 -s TCP 127.0.0.1 2>&1; then 298 printf "setsockopt(..., TCP_ULP, \"mptcp\", ...) allowed\t[ FAIL ]\n" 299 retval=1 300 ret=$retval 301 else 302 printf "setsockopt(..., TCP_ULP, \"mptcp\", ...) blocked\t[ OK ]\n" 303 retval=0 304 fi 305 ip netns del ${t} 306 return $retval 307} 308 309# $1: IP address 310is_v6() 311{ 312 [ -z "${1##*:*}" ] 313} 314 315do_ping() 316{ 317 local listener_ns="$1" 318 local connector_ns="$2" 319 local connect_addr="$3" 320 local ping_args="-q -c 1" 321 322 if is_v6 "${connect_addr}"; then 323 $ipv6 || return 0 324 ping_args="${ping_args} -6" 325 fi 326 327 ip netns exec ${connector_ns} ping ${ping_args} $connect_addr >/dev/null 328 if [ $? -ne 0 ] ; then 329 echo "$listener_ns -> $connect_addr connectivity [ FAIL ]" 1>&2 330 ret=1 331 332 return 1 333 fi 334 335 return 0 336} 337 338# $1: ns, $2: MIB counter 339get_mib_counter() 340{ 341 local listener_ns="${1}" 342 local mib="${2}" 343 344 # strip the header 345 ip netns exec "${listener_ns}" \ 346 nstat -z -a "${mib}" | \ 347 tail -n+2 | \ 348 while read a count c rest; do 349 echo $count 350 done 351} 352 353# $1: ns, $2: port 354wait_local_port_listen() 355{ 356 local listener_ns="${1}" 357 local port="${2}" 358 359 local port_hex i 360 361 port_hex="$(printf "%04X" "${port}")" 362 for i in $(seq 10); do 363 ip netns exec "${listener_ns}" cat /proc/net/tcp* | \ 364 awk "BEGIN {rc=1} {if (\$2 ~ /:${port_hex}\$/ && \$4 ~ /0A/) {rc=0; exit}} END {exit rc}" && 365 break 366 sleep 0.1 367 done 368} 369 370do_transfer() 371{ 372 local listener_ns="$1" 373 local connector_ns="$2" 374 local cl_proto="$3" 375 local srv_proto="$4" 376 local connect_addr="$5" 377 local local_addr="$6" 378 local extra_args="$7" 379 380 local port 381 port=$((10000+$TEST_COUNT)) 382 TEST_COUNT=$((TEST_COUNT+1)) 383 384 if [ "$rcvbuf" -gt 0 ]; then 385 extra_args="$extra_args -R $rcvbuf" 386 fi 387 388 if [ "$sndbuf" -gt 0 ]; then 389 extra_args="$extra_args -S $sndbuf" 390 fi 391 392 if [ -n "$testmode" ]; then 393 extra_args="$extra_args -m $testmode" 394 fi 395 396 if [ -n "$extra_args" ] && $options_log; then 397 echo "INFO: extra options: $extra_args" 398 fi 399 options_log=false 400 401 :> "$cout" 402 :> "$sout" 403 :> "$capout" 404 405 local addr_port 406 addr_port=$(printf "%s:%d" ${connect_addr} ${port}) 407 printf "%.3s %-5s -> %.3s (%-20s) %-5s\t" ${connector_ns} ${cl_proto} ${listener_ns} ${addr_port} ${srv_proto} 408 409 if $capture; then 410 local capuser 411 if [ -z $SUDO_USER ] ; then 412 capuser="" 413 else 414 capuser="-Z $SUDO_USER" 415 fi 416 417 local capfile="${rndh}-${connector_ns:0:3}-${listener_ns:0:3}-${cl_proto}-${srv_proto}-${connect_addr}-${port}" 418 local capopt="-i any -s 65535 -B 32768 ${capuser}" 419 420 ip netns exec ${listener_ns} tcpdump ${capopt} -w "${capfile}-listener.pcap" >> "${capout}" 2>&1 & 421 local cappid_listener=$! 422 423 ip netns exec ${connector_ns} tcpdump ${capopt} -w "${capfile}-connector.pcap" >> "${capout}" 2>&1 & 424 local cappid_connector=$! 425 426 sleep 1 427 fi 428 429 NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \ 430 nstat -n 431 if [ ${listener_ns} != ${connector_ns} ]; then 432 NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \ 433 nstat -n 434 fi 435 436 local stat_synrx_last_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX") 437 local stat_ackrx_last_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableACKRX") 438 local stat_cookietx_last=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesSent") 439 local stat_cookierx_last=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesRecv") 440 441 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" > "$sout" & 445 local spid=$! 446 447 wait_local_port_listen "${listener_ns}" "${port}" 448 449 local start 450 start=$(date +%s%3N) 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" > "$cout" & 455 local cpid=$! 456 457 wait $cpid 458 local retc=$? 459 wait $spid 460 local rets=$? 461 462 local stop 463 stop=$(date +%s%3N) 464 465 if $capture; then 466 sleep 1 467 kill ${cappid_listener} 468 kill ${cappid_connector} 469 fi 470 471 NSTAT_HISTORY=/tmp/${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 476 fi 477 478 local duration 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 489 490 echo 491 cat "$capout" 492 return 1 493 fi 494 495 check_transfer $sin $cout "file received by client" 496 retc=$? 497 check_transfer $cin $sout "file received by server" 498 rets=$? 499 500 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") 504 505 expect_synrx=$((stat_synrx_last_l)) 506 expect_ackrx=$((stat_ackrx_last_l)) 507 508 cookies=$(ip netns exec ${listener_ns} sysctl net.ipv4.tcp_syncookies) 509 cookies=${cookies##*=} 510 511 if [ ${cl_proto} = "MPTCP" ] && [ ${srv_proto} = "MPTCP" ]; then 512 expect_synrx=$((stat_synrx_last_l+1)) 513 expect_ackrx=$((stat_ackrx_last_l+1)) 514 fi 515 516 if [ ${stat_synrx_now_l} -lt ${expect_synrx} ]; then 517 printf "[ FAIL ] lower MPC SYN rx (%d) than expected (%d)\n" \ 518 "${stat_synrx_now_l}" "${expect_synrx}" 1>&2 519 retc=1 520 fi 521 if [ ${stat_ackrx_now_l} -lt ${expect_ackrx} ]; then 522 printf "[ FAIL ] lower MPC ACK rx (%d) than expected (%d)\n" \ 523 "${stat_ackrx_now_l}" "${expect_ackrx}" 1>&2 524 rets=1 525 fi 526 527 if [ $retc -eq 0 ] && [ $rets -eq 0 ]; then 528 printf "[ OK ]" 529 fi 530 531 if [ $cookies -eq 2 ];then 532 if [ $stat_cookietx_last -ge $stat_cookietx_now ] ;then 533 printf " WARN: CookieSent: did not advance" 534 fi 535 if [ $stat_cookierx_last -ge $stat_cookierx_now ] ;then 536 printf " WARN: CookieRecv: did not advance" 537 fi 538 else 539 if [ $stat_cookietx_last -ne $stat_cookietx_now ] ;then 540 printf " WARN: CookieSent: changed" 541 fi 542 if [ $stat_cookierx_last -ne $stat_cookierx_now ] ;then 543 printf " WARN: CookieRecv: changed" 544 fi 545 fi 546 547 if [ ${stat_synrx_now_l} -gt ${expect_synrx} ]; then 548 printf " WARN: SYNRX: expect %d, got %d (probably retransmissions)" \ 549 "${expect_synrx}" "${stat_synrx_now_l}" 550 fi 551 if [ ${stat_ackrx_now_l} -gt ${expect_ackrx} ]; then 552 printf " WARN: ACKRX: expect %d, got %d (probably retransmissions)" \ 553 "${expect_ackrx}" "${stat_ackrx_now_l}" 554 fi 555 556 echo 557 cat "$capout" 558 [ $retc -eq 0 ] && [ $rets -eq 0 ] 559} 560 561make_file() 562{ 563 local name=$1 564 local who=$2 565 local SIZE=$filesize 566 local ksize 567 local rem 568 569 if [ $SIZE -eq 0 ]; then 570 local MAXSIZE=$((1024 * 1024 * 8)) 571 local MINSIZE=$((1024 * 256)) 572 573 SIZE=$(((RANDOM * RANDOM + MINSIZE) % MAXSIZE)) 574 fi 575 576 ksize=$((SIZE / 1024)) 577 rem=$((SIZE - (ksize * 1024))) 578 579 dd if=/dev/urandom of="$name" bs=1024 count=$ksize 2> /dev/null 580 dd if=/dev/urandom conv=notrunc of="$name" bs=1 count=$rem 2> /dev/null 581 echo -e "\nMPTCP_TEST_FILE_END_MARKER" >> "$name" 582 583 echo "Created $name (size $(du -b "$name")) containing data sent by $who" 584} 585 586run_tests_lo() 587{ 588 local listener_ns="$1" 589 local connector_ns="$2" 590 local connect_addr="$3" 591 local loopback="$4" 592 local extra_args="$5" 593 local lret=0 594 595 # skip if test programs are running inside same netns for subsequent runs. 596 if [ $loopback -eq 0 ] && [ ${listener_ns} = ${connector_ns} ]; then 597 return 0 598 fi 599 600 # skip if we don't want v6 601 if ! $ipv6 && is_v6 "${connect_addr}"; then 602 return 0 603 fi 604 605 local local_addr 606 if is_v6 "${connect_addr}"; then 607 local_addr="::" 608 else 609 local_addr="0.0.0.0" 610 fi 611 612 do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \ 613 ${connect_addr} ${local_addr} "${extra_args}" 614 lret=$? 615 if [ $lret -ne 0 ]; then 616 ret=$lret 617 return 1 618 fi 619 620 if [ $do_tcp -eq 0 ]; then 621 # don't bother testing fallback tcp except for loopback case. 622 if [ ${listener_ns} != ${connector_ns} ]; then 623 return 0 624 fi 625 fi 626 627 do_transfer ${listener_ns} ${connector_ns} MPTCP TCP \ 628 ${connect_addr} ${local_addr} "${extra_args}" 629 lret=$? 630 if [ $lret -ne 0 ]; then 631 ret=$lret 632 return 1 633 fi 634 635 do_transfer ${listener_ns} ${connector_ns} TCP MPTCP \ 636 ${connect_addr} ${local_addr} "${extra_args}" 637 lret=$? 638 if [ $lret -ne 0 ]; then 639 ret=$lret 640 return 1 641 fi 642 643 if [ $do_tcp -gt 1 ] ;then 644 do_transfer ${listener_ns} ${connector_ns} TCP TCP \ 645 ${connect_addr} ${local_addr} "${extra_args}" 646 lret=$? 647 if [ $lret -ne 0 ]; then 648 ret=$lret 649 return 1 650 fi 651 fi 652 653 return 0 654} 655 656run_tests() 657{ 658 run_tests_lo $1 $2 $3 0 659} 660 661run_tests_peekmode() 662{ 663 local peekmode="$1" 664 665 echo "INFO: with peek mode: ${peekmode}" 666 run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 "-P ${peekmode}" 667 run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-P ${peekmode}" 668} 669 670make_file "$cin" "client" 671make_file "$sin" "server" 672 673check_mptcp_disabled 674 675check_mptcp_ulp_setsockopt 676 677echo "INFO: validating network environment with pings" 678for sender in "$ns1" "$ns2" "$ns3" "$ns4";do 679 do_ping "$ns1" $sender 10.0.1.1 680 do_ping "$ns1" $sender dead:beef:1::1 681 682 do_ping "$ns2" $sender 10.0.1.2 683 do_ping "$ns2" $sender dead:beef:1::2 684 do_ping "$ns2" $sender 10.0.2.1 685 do_ping "$ns2" $sender dead:beef:2::1 686 687 do_ping "$ns3" $sender 10.0.2.2 688 do_ping "$ns3" $sender dead:beef:2::2 689 do_ping "$ns3" $sender 10.0.3.2 690 do_ping "$ns3" $sender dead:beef:3::2 691 692 do_ping "$ns4" $sender 10.0.3.1 693 do_ping "$ns4" $sender dead:beef:3::1 694done 695 696[ -n "$tc_loss" ] && tc -net "$ns2" qdisc add dev ns2eth3 root netem loss random $tc_loss delay ${tc_delay}ms 697echo -n "INFO: Using loss of $tc_loss " 698test "$tc_delay" -gt 0 && echo -n "delay $tc_delay ms " 699 700reorder_delay=$(($tc_delay / 4)) 701 702if [ -z "${tc_reorder}" ]; then 703 reorder1=$((RANDOM%10)) 704 reorder1=$((100 - reorder1)) 705 reorder2=$((RANDOM%100)) 706 707 if [ $reorder_delay -gt 0 ] && [ $reorder1 -lt 100 ] && [ $reorder2 -gt 0 ]; then 708 tc_reorder="reorder ${reorder1}% ${reorder2}%" 709 echo -n "$tc_reorder with delay ${reorder_delay}ms " 710 fi 711elif [ "$tc_reorder" = "0" ];then 712 tc_reorder="" 713elif [ "$reorder_delay" -gt 0 ];then 714 # reordering requires some delay 715 tc_reorder="reorder $tc_reorder" 716 echo -n "$tc_reorder with delay ${reorder_delay}ms " 717fi 718 719echo "on ns3eth4" 720 721tc -net "$ns3" qdisc add dev ns3eth4 root netem delay ${reorder_delay}ms $tc_reorder 722 723for sender in $ns1 $ns2 $ns3 $ns4;do 724 run_tests_lo "$ns1" "$sender" 10.0.1.1 1 725 if [ $ret -ne 0 ] ;then 726 echo "FAIL: Could not even run loopback test" 1>&2 727 exit $ret 728 fi 729 run_tests_lo "$ns1" $sender dead:beef:1::1 1 730 if [ $ret -ne 0 ] ;then 731 echo "FAIL: Could not even run loopback v6 test" 2>&1 732 exit $ret 733 fi 734 735 run_tests "$ns2" $sender 10.0.1.2 736 run_tests "$ns2" $sender dead:beef:1::2 737 run_tests "$ns2" $sender 10.0.2.1 738 run_tests "$ns2" $sender dead:beef:2::1 739 740 run_tests "$ns3" $sender 10.0.2.2 741 run_tests "$ns3" $sender dead:beef:2::2 742 run_tests "$ns3" $sender 10.0.3.2 743 run_tests "$ns3" $sender dead:beef:3::2 744 745 run_tests "$ns4" $sender 10.0.3.1 746 run_tests "$ns4" $sender dead:beef:3::1 747done 748 749run_tests_peekmode "saveWithPeek" 750run_tests_peekmode "saveAfterPeek" 751 752time_end=$(date +%s) 753time_run=$((time_end-time_start)) 754 755echo "Time: ${time_run} seconds" 756 757exit $ret 758