1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3 4. "$(dirname "${0}")/mptcp_lib.sh" 5 6time_start=$(date +%s) 7 8optstring="S:R:d:e:l:r:h4cm:f:tC" 9ret=0 10sin="" 11sout="" 12cin_disconnect="" 13cin="" 14cout="" 15ksft_skip=4 16capture=false 17timeout_poll=30 18timeout_test=$((timeout_poll * 2 + 1)) 19ipv6=true 20ethtool_random_on=true 21tc_delay="$((RANDOM%50))" 22tc_loss=$((RANDOM%101)) 23testmode="" 24sndbuf=0 25rcvbuf=0 26options_log=true 27do_tcp=0 28checksum=false 29filesize=0 30connect_per_transfer=1 31 32if [ $tc_loss -eq 100 ];then 33 tc_loss=1% 34elif [ $tc_loss -ge 10 ]; then 35 tc_loss=0.$tc_loss% 36elif [ $tc_loss -ge 1 ]; then 37 tc_loss=0.0$tc_loss% 38else 39 tc_loss="" 40fi 41 42usage() { 43 echo "Usage: $0 [ -a ]" 44 echo -e "\t-d: tc/netem delay in milliseconds, e.g. \"-d 10\" (default random)" 45 echo -e "\t-l: tc/netem loss percentage, e.g. \"-l 0.02\" (default random)" 46 echo -e "\t-r: tc/netem reorder mode, e.g. \"-r 25% 50% gap 5\", use "-r 0" to disable reordering (default random)" 47 echo -e "\t-e: ethtool features to disable, e.g.: \"-e tso -e gso\" (default: randomly disable any of tso/gso/gro)" 48 echo -e "\t-4: IPv4 only: disable IPv6 tests (default: test both IPv4 and IPv6)" 49 echo -e "\t-c: capture packets for each test using tcpdump (default: no capture)" 50 echo -e "\t-f: size of file to transfer in bytes (default random)" 51 echo -e "\t-S: set sndbuf value (default: use kernel default)" 52 echo -e "\t-R: set rcvbuf value (default: use kernel default)" 53 echo -e "\t-m: test mode (poll, sendfile; default: poll)" 54 echo -e "\t-t: also run tests with TCP (use twice to non-fallback tcp)" 55 echo -e "\t-C: enable the MPTCP data checksum" 56} 57 58while getopts "$optstring" option;do 59 case "$option" in 60 "h") 61 usage $0 62 exit 0 63 ;; 64 "d") 65 if [ $OPTARG -ge 0 ];then 66 tc_delay="$OPTARG" 67 else 68 echo "-d requires numeric argument, got \"$OPTARG\"" 1>&2 69 exit 1 70 fi 71 ;; 72 "e") 73 ethtool_args="$ethtool_args $OPTARG off" 74 ethtool_random_on=false 75 ;; 76 "l") 77 tc_loss="$OPTARG" 78 ;; 79 "r") 80 tc_reorder="$OPTARG" 81 ;; 82 "4") 83 ipv6=false 84 ;; 85 "c") 86 capture=true 87 ;; 88 "S") 89 if [ $OPTARG -ge 0 ];then 90 sndbuf="$OPTARG" 91 else 92 echo "-S requires numeric argument, got \"$OPTARG\"" 1>&2 93 exit 1 94 fi 95 ;; 96 "R") 97 if [ $OPTARG -ge 0 ];then 98 rcvbuf="$OPTARG" 99 else 100 echo "-R requires numeric argument, got \"$OPTARG\"" 1>&2 101 exit 1 102 fi 103 ;; 104 "m") 105 testmode="$OPTARG" 106 ;; 107 "f") 108 filesize="$OPTARG" 109 ;; 110 "t") 111 do_tcp=$((do_tcp+1)) 112 ;; 113 "C") 114 checksum=true 115 ;; 116 "?") 117 usage $0 118 exit 1 119 ;; 120 esac 121done 122 123sec=$(date +%s) 124rndh=$(printf %x $sec)-$(mktemp -u XXXXXX) 125ns1="ns1-$rndh" 126ns2="ns2-$rndh" 127ns3="ns3-$rndh" 128ns4="ns4-$rndh" 129 130TEST_COUNT=0 131 132cleanup() 133{ 134 rm -f "$cin_disconnect" "$cout_disconnect" 135 rm -f "$cin" "$cout" 136 rm -f "$sin" "$sout" 137 rm -f "$capout" 138 139 local netns 140 for netns in "$ns1" "$ns2" "$ns3" "$ns4";do 141 ip netns del $netns 142 rm -f /tmp/$netns.{nstat,out} 143 done 144} 145 146mptcp_lib_check_mptcp 147 148ip -Version > /dev/null 2>&1 149if [ $? -ne 0 ];then 150 echo "SKIP: Could not run test without ip tool" 151 exit $ksft_skip 152fi 153 154sin=$(mktemp) 155sout=$(mktemp) 156cin=$(mktemp) 157cout=$(mktemp) 158capout=$(mktemp) 159cin_disconnect="$cin".disconnect 160cout_disconnect="$cout".disconnect 161trap cleanup EXIT 162 163for i in "$ns1" "$ns2" "$ns3" "$ns4";do 164 ip netns add $i || exit $ksft_skip 165 ip -net $i link set lo up 166done 167 168# "$ns1" ns2 ns3 ns4 169# ns1eth2 ns2eth1 ns2eth3 ns3eth2 ns3eth4 ns4eth3 170# - drop 1% -> reorder 25% 171# <- TSO off - 172 173ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth1 netns "$ns2" 174ip link add ns2eth3 netns "$ns2" type veth peer name ns3eth2 netns "$ns3" 175ip link add ns3eth4 netns "$ns3" type veth peer name ns4eth3 netns "$ns4" 176 177ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth2 178ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth2 nodad 179 180ip -net "$ns1" link set ns1eth2 up 181ip -net "$ns1" route add default via 10.0.1.2 182ip -net "$ns1" route add default via dead:beef:1::2 183 184ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1 185ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad 186ip -net "$ns2" link set ns2eth1 up 187 188ip -net "$ns2" addr add 10.0.2.1/24 dev ns2eth3 189ip -net "$ns2" addr add dead:beef:2::1/64 dev ns2eth3 nodad 190ip -net "$ns2" link set ns2eth3 up 191ip -net "$ns2" route add default via 10.0.2.2 192ip -net "$ns2" route add default via dead:beef:2::2 193ip netns exec "$ns2" sysctl -q net.ipv4.ip_forward=1 194ip netns exec "$ns2" sysctl -q net.ipv6.conf.all.forwarding=1 195 196ip -net "$ns3" addr add 10.0.2.2/24 dev ns3eth2 197ip -net "$ns3" addr add dead:beef:2::2/64 dev ns3eth2 nodad 198ip -net "$ns3" link set ns3eth2 up 199 200ip -net "$ns3" addr add 10.0.3.2/24 dev ns3eth4 201ip -net "$ns3" addr add dead:beef:3::2/64 dev ns3eth4 nodad 202ip -net "$ns3" link set ns3eth4 up 203ip -net "$ns3" route add default via 10.0.2.1 204ip -net "$ns3" route add default via dead:beef:2::1 205ip netns exec "$ns3" sysctl -q net.ipv4.ip_forward=1 206ip netns exec "$ns3" sysctl -q net.ipv6.conf.all.forwarding=1 207 208ip -net "$ns4" addr add 10.0.3.1/24 dev ns4eth3 209ip -net "$ns4" addr add dead:beef:3::1/64 dev ns4eth3 nodad 210ip -net "$ns4" link set ns4eth3 up 211ip -net "$ns4" route add default via 10.0.3.2 212ip -net "$ns4" route add default via dead:beef:3::2 213 214if $checksum; then 215 for i in "$ns1" "$ns2" "$ns3" "$ns4";do 216 ip netns exec $i sysctl -q net.mptcp.checksum_enabled=1 217 done 218fi 219 220set_ethtool_flags() { 221 local ns="$1" 222 local dev="$2" 223 local flags="$3" 224 225 ip netns exec $ns ethtool -K $dev $flags 2>/dev/null 226 [ $? -eq 0 ] && echo "INFO: set $ns dev $dev: ethtool -K $flags" 227} 228 229set_random_ethtool_flags() { 230 local flags="" 231 local r=$RANDOM 232 233 local pick1=$((r & 1)) 234 local pick2=$((r & 2)) 235 local pick3=$((r & 4)) 236 237 [ $pick1 -ne 0 ] && flags="tso off" 238 [ $pick2 -ne 0 ] && flags="$flags gso off" 239 [ $pick3 -ne 0 ] && flags="$flags gro off" 240 241 [ -z "$flags" ] && return 242 243 set_ethtool_flags "$1" "$2" "$flags" 244} 245 246if $ethtool_random_on;then 247 set_random_ethtool_flags "$ns3" ns3eth2 248 set_random_ethtool_flags "$ns4" ns4eth3 249else 250 set_ethtool_flags "$ns3" ns3eth2 "$ethtool_args" 251 set_ethtool_flags "$ns4" ns4eth3 "$ethtool_args" 252fi 253 254print_file_err() 255{ 256 ls -l "$1" 1>&2 257 echo "Trailing bytes are: " 258 tail -c 27 "$1" 259} 260 261check_transfer() 262{ 263 local in=$1 264 local out=$2 265 local what=$3 266 267 cmp "$in" "$out" > /dev/null 2>&1 268 if [ $? -ne 0 ] ;then 269 echo "[ FAIL ] $what does not match (in, out):" 270 print_file_err "$in" 271 print_file_err "$out" 272 273 return 1 274 fi 275 276 return 0 277} 278 279check_mptcp_disabled() 280{ 281 local disabled_ns="ns_disabled-$rndh" 282 ip netns add ${disabled_ns} || exit $ksft_skip 283 284 # net.mptcp.enabled should be enabled by default 285 if [ "$(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 ]" 287 ret=1 288 return 1 289 fi 290 ip netns exec ${disabled_ns} sysctl -q net.mptcp.enabled=0 291 292 local err=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} 296 297 if [ ${err} -eq 0 ]; then 298 echo -e "New MPTCP socket cannot be blocked via sysctl\t\t[ FAIL ]" 299 ret=1 300 return 1 301 fi 302 303 echo -e "New MPTCP socket can be blocked via sysctl\t\t[ OK ]" 304 return 0 305} 306 307# $1: IP address 308is_v6() 309{ 310 [ -z "${1##*:*}" ] 311} 312 313do_ping() 314{ 315 local listener_ns="$1" 316 local connector_ns="$2" 317 local connect_addr="$3" 318 local ping_args="-q -c 1" 319 320 if is_v6 "${connect_addr}"; then 321 $ipv6 || return 0 322 ping_args="${ping_args} -6" 323 fi 324 325 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>&2 328 ret=1 329 330 return 1 331 fi 332 333 return 0 334} 335 336# $1: ns, $2: MIB counter 337get_mib_counter() 338{ 339 local listener_ns="${1}" 340 local mib="${2}" 341 342 # strip the header 343 ip netns exec "${listener_ns}" \ 344 nstat -z -a "${mib}" | \ 345 tail -n+2 | \ 346 while read a count c rest; do 347 echo $count 348 done 349} 350 351# $1: ns, $2: port 352wait_local_port_listen() 353{ 354 local listener_ns="${1}" 355 local port="${2}" 356 357 local port_hex i 358 359 port_hex="$(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}" && 363 break 364 sleep 0.1 365 done 366} 367 368do_transfer() 369{ 370 local listener_ns="$1" 371 local connector_ns="$2" 372 local cl_proto="$3" 373 local srv_proto="$4" 374 local connect_addr="$5" 375 local local_addr="$6" 376 local extra_args="$7" 377 378 local port 379 port=$((10000+$TEST_COUNT)) 380 TEST_COUNT=$((TEST_COUNT+1)) 381 382 if [ "$rcvbuf" -gt 0 ]; then 383 extra_args="$extra_args -R $rcvbuf" 384 fi 385 386 if [ "$sndbuf" -gt 0 ]; then 387 extra_args="$extra_args -S $sndbuf" 388 fi 389 390 if [ -n "$testmode" ]; then 391 extra_args="$extra_args -m $testmode" 392 fi 393 394 if [ -n "$extra_args" ] && $options_log; then 395 echo "INFO: extra options: $extra_args" 396 fi 397 options_log=false 398 399 :> "$cout" 400 :> "$sout" 401 :> "$capout" 402 403 local addr_port 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} 406 407 if $capture; then 408 local capuser 409 if [ -z $SUDO_USER ] ; then 410 capuser="" 411 else 412 capuser="-Z $SUDO_USER" 413 fi 414 415 local capfile="${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}" 417 418 ip netns exec ${listener_ns} tcpdump ${capopt} -w "${capfile}-listener.pcap" >> "${capout}" 2>&1 & 419 local cappid_listener=$! 420 421 ip netns exec ${connector_ns} tcpdump ${capopt} -w "${capfile}-connector.pcap" >> "${capout}" 2>&1 & 422 local cappid_connector=$! 423 424 sleep 1 425 fi 426 427 NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \ 428 nstat -n 429 if [ ${listener_ns} != ${connector_ns} ]; then 430 NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \ 431 nstat -n 432 fi 433 434 local stat_synrx_last_l=$(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") 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 local stat_ooo_now=$(get_mib_counter "${listener_ns}" "TcpExtTCPOFOQueue") 505 506 expect_synrx=$((stat_synrx_last_l)) 507 expect_ackrx=$((stat_ackrx_last_l)) 508 509 cookies=$(ip netns exec ${listener_ns} sysctl net.ipv4.tcp_syncookies) 510 cookies=${cookies##*=} 511 512 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)) 515 fi 516 517 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>&2 520 retc=1 521 fi 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>&2 526 rets=1 527 else 528 printf "[ Note ] fallback due to TCP OoO" 529 fi 530 fi 531 532 if $checksum; then 533 local csum_err_s=$(get_mib_counter "${listener_ns}" "MPTcpExtDataCsumErr") 534 local csum_err_c=$(get_mib_counter "${connector_ns}" "MPTcpExtDataCsumErr") 535 536 local csum_err_s_nr=$((csum_err_s - stat_csum_err_s)) 537 if [ $csum_err_s_nr -gt 0 ]; then 538 printf "[ FAIL ]\nserver got $csum_err_s_nr data checksum error[s]" 539 rets=1 540 fi 541 542 local csum_err_c_nr=$((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]" 545 retc=1 546 fi 547 fi 548 549 if [ $retc -eq 0 ] && [ $rets -eq 0 ]; then 550 printf "[ OK ]" 551 fi 552 553 if [ $cookies -eq 2 ];then 554 if [ $stat_cookietx_last -ge $stat_cookietx_now ] ;then 555 printf " WARN: CookieSent: did not advance" 556 fi 557 if [ $stat_cookierx_last -ge $stat_cookierx_now ] ;then 558 printf " WARN: CookieRecv: did not advance" 559 fi 560 else 561 if [ $stat_cookietx_last -ne $stat_cookietx_now ] ;then 562 printf " WARN: CookieSent: changed" 563 fi 564 if [ $stat_cookierx_last -ne $stat_cookierx_now ] ;then 565 printf " WARN: CookieRecv: changed" 566 fi 567 fi 568 569 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}" 572 fi 573 if [ ${stat_ackrx_now_l} -gt ${expect_ackrx} ]; then 574 printf " WARN: ACKRX: expect %d, got %d (probably retransmissions)" \ 575 "${expect_ackrx}" "${stat_ackrx_now_l}" 576 fi 577 578 echo 579 cat "$capout" 580 [ $retc -eq 0 ] && [ $rets -eq 0 ] 581} 582 583make_file() 584{ 585 local name=$1 586 local who=$2 587 local SIZE=$filesize 588 local ksize 589 local rem 590 591 if [ $SIZE -eq 0 ]; then 592 local MAXSIZE=$((1024 * 1024 * 8)) 593 local MINSIZE=$((1024 * 256)) 594 595 SIZE=$(((RANDOM * RANDOM + MINSIZE) % MAXSIZE)) 596 fi 597 598 ksize=$((SIZE / 1024)) 599 rem=$((SIZE - (ksize * 1024))) 600 601 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" 604 605 echo "Created $name (size $(du -b "$name")) containing data sent by $who" 606} 607 608run_tests_lo() 609{ 610 local listener_ns="$1" 611 local connector_ns="$2" 612 local connect_addr="$3" 613 local loopback="$4" 614 local extra_args="$5" 615 local lret=0 616 617 # skip if test programs are running inside same netns for subsequent runs. 618 if [ $loopback -eq 0 ] && [ ${listener_ns} = ${connector_ns} ]; then 619 return 0 620 fi 621 622 # skip if we don't want v6 623 if ! $ipv6 && is_v6 "${connect_addr}"; then 624 return 0 625 fi 626 627 local local_addr 628 if is_v6 "${connect_addr}"; then 629 local_addr="::" 630 else 631 local_addr="0.0.0.0" 632 fi 633 634 do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \ 635 ${connect_addr} ${local_addr} "${extra_args}" 636 lret=$? 637 if [ $lret -ne 0 ]; then 638 ret=$lret 639 return 1 640 fi 641 642 if [ $do_tcp -eq 0 ]; then 643 # don't bother testing fallback tcp except for loopback case. 644 if [ ${listener_ns} != ${connector_ns} ]; then 645 return 0 646 fi 647 fi 648 649 do_transfer ${listener_ns} ${connector_ns} MPTCP TCP \ 650 ${connect_addr} ${local_addr} "${extra_args}" 651 lret=$? 652 if [ $lret -ne 0 ]; then 653 ret=$lret 654 return 1 655 fi 656 657 do_transfer ${listener_ns} ${connector_ns} TCP MPTCP \ 658 ${connect_addr} ${local_addr} "${extra_args}" 659 lret=$? 660 if [ $lret -ne 0 ]; then 661 ret=$lret 662 return 1 663 fi 664 665 if [ $do_tcp -gt 1 ] ;then 666 do_transfer ${listener_ns} ${connector_ns} TCP TCP \ 667 ${connect_addr} ${local_addr} "${extra_args}" 668 lret=$? 669 if [ $lret -ne 0 ]; then 670 ret=$lret 671 return 1 672 fi 673 fi 674 675 return 0 676} 677 678run_tests() 679{ 680 run_tests_lo $1 $2 $3 0 681} 682 683run_test_transparent() 684{ 685 local connect_addr="$1" 686 local msg="$2" 687 688 local connector_ns="$ns1" 689 local listener_ns="$ns2" 690 local lret=0 691 local r6flag="" 692 693 # skip if we don't want v6 694 if ! $ipv6 && is_v6 "${connect_addr}"; then 695 return 0 696 fi 697 698ip netns exec "$listener_ns" nft -f /dev/stdin <<"EOF" 699flush ruleset 700table inet mangle { 701 chain divert { 702 type filter hook prerouting priority -150; 703 704 meta l4proto tcp socket transparent 1 meta mark set 1 accept 705 tcp dport 20000 tproxy to :20000 meta mark set 1 accept 706 } 707} 708EOF 709 if [ $? -ne 0 ]; then 710 echo "SKIP: $msg, could not load nft ruleset" 711 return 712 fi 713 714 local local_addr 715 if is_v6 "${connect_addr}"; then 716 local_addr="::" 717 r6flag="-6" 718 else 719 local_addr="0.0.0.0" 720 fi 721 722 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 $r6flag rule failed" 726 return 727 fi 728 729 ip -net "$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" 734 return 735 fi 736 737 echo "INFO: test $msg" 738 739 TEST_COUNT=10000 740 local extra_args="-o TRANSPARENT" 741 do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \ 742 ${connect_addr} ${local_addr} "${extra_args}" 743 lret=$? 744 745 ip netns exec "$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 100 748 749 if [ $lret -ne 0 ]; then 750 echo "FAIL: $msg, mptcp connection error" 1>&2 751 ret=$lret 752 return 1 753 fi 754 755 echo "PASS: $msg" 756 return 0 757} 758 759run_tests_peekmode() 760{ 761 local peekmode="$1" 762 763 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 ${peekmode}" 766} 767 768run_tests_mptfo() 769{ 770 echo "INFO: with MPTFO start" 771 ip netns exec "$ns1" sysctl -q net.ipv4.tcp_fastopen=2 772 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_fastopen=1 773 774 run_tests_lo "$ns1" "$ns2" 10.0.1.1 0 "-o MPTFO" 775 run_tests_lo "$ns1" "$ns2" 10.0.1.1 0 "-o MPTFO" 776 777 run_tests_lo "$ns1" "$ns2" dead:beef:1::1 0 "-o MPTFO" 778 run_tests_lo "$ns1" "$ns2" dead:beef:1::1 0 "-o MPTFO" 779 780 ip netns exec "$ns1" sysctl -q net.ipv4.tcp_fastopen=0 781 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_fastopen=0 782 echo "INFO: with MPTFO end" 783} 784 785run_tests_disconnect() 786{ 787 local old_cin=$cin 788 local old_sin=$sin 789 790 cat $cin $cin $cin > "$cin".disconnect 791 792 # force do_transfer to cope with the multiple tranmissions 793 sin="$cin.disconnect" 794 cin="$cin.disconnect" 795 cin_disconnect="$old_cin" 796 connect_per_transfer=3 797 798 echo "INFO: disconnect" 799 run_tests_lo "$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 $old_cin" 801 802 # restore previous status 803 sin=$old_sin 804 cin=$old_cin 805 cin_disconnect="$cin".disconnect 806 connect_per_transfer=1 807} 808 809display_time() 810{ 811 time_end=$(date +%s) 812 time_run=$((time_end-time_start)) 813 814 echo "Time: ${time_run} seconds" 815} 816 817stop_if_error() 818{ 819 local msg="$1" 820 821 if [ ${ret} -ne 0 ]; then 822 echo "FAIL: ${msg}" 1>&2 823 display_time 824 exit ${ret} 825 fi 826} 827 828make_file "$cin" "client" 829make_file "$sin" "server" 830 831check_mptcp_disabled 832 833stop_if_error "The kernel configuration is not valid for MPTCP" 834 835echo "INFO: validating network environment with pings" 836for sender in "$ns1" "$ns2" "$ns3" "$ns4";do 837 do_ping "$ns1" $sender 10.0.1.1 838 do_ping "$ns1" $sender dead:beef:1::1 839 840 do_ping "$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" $sender dead:beef:2::1 844 845 do_ping "$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" $sender dead:beef:3::2 849 850 do_ping "$ns4" $sender 10.0.3.1 851 do_ping "$ns4" $sender dead:beef:3::1 852done 853 854stop_if_error "Could not even run ping tests" 855 856[ -n "$tc_loss" ] && tc -net "$ns2" qdisc add dev ns2eth3 root netem loss random $tc_loss delay ${tc_delay}ms 857echo -n "INFO: Using loss of $tc_loss " 858test "$tc_delay" -gt 0 && echo -n "delay $tc_delay ms " 859 860reorder_delay=$(($tc_delay / 4)) 861 862if [ -z "${tc_reorder}" ]; then 863 reorder1=$((RANDOM%10)) 864 reorder1=$((100 - reorder1)) 865 reorder2=$((RANDOM%100)) 866 867 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 ${reorder_delay}ms " 870 fi 871elif [ "$tc_reorder" = "0" ];then 872 tc_reorder="" 873elif [ "$reorder_delay" -gt 0 ];then 874 # reordering requires some delay 875 tc_reorder="reorder $tc_reorder" 876 echo -n "$tc_reorder with delay ${reorder_delay}ms " 877fi 878 879echo "on ns3eth4" 880 881tc -net "$ns3" qdisc add dev ns3eth4 root netem delay ${reorder_delay}ms $tc_reorder 882 883run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 884stop_if_error "Could not even run loopback test" 885 886run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 887stop_if_error "Could not even run loopback v6 test" 888 889for 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=2 894 else 895 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=1 896 fi 897 898 run_tests "$ns1" $sender 10.0.1.1 899 run_tests "$ns1" $sender dead:beef:1::1 900 901 run_tests "$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" $sender dead:beef:2::1 905 906 run_tests "$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" $sender dead:beef:3::2 910 911 run_tests "$ns4" $sender 10.0.3.1 912 run_tests "$ns4" $sender dead:beef:3::1 913 914 stop_if_error "Tests with $sender as a sender have failed" 915done 916 917run_tests_peekmode "saveWithPeek" 918run_tests_peekmode "saveAfterPeek" 919stop_if_error "Tests with peek mode have failed" 920 921# MPTFO (MultiPath TCP Fatopen tests) 922run_tests_mptfo 923stop_if_error "Tests with MPTFO have failed" 924 925# connect to ns4 ip address, ns2 should intercept/proxy 926run_test_transparent 10.0.3.1 "tproxy ipv4" 927run_test_transparent dead:beef:3::1 "tproxy ipv6" 928stop_if_error "Tests with tproxy have failed" 929 930run_tests_disconnect 931 932display_time 933exit $ret 934