1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3 4. "$(dirname "${0}")/mptcp_lib.sh" 5 6time_start=$(date +%s) 7 8optstring="S:R:d:e:l:r:h4cm:f:tC" 9ret=0 10final_ret=0 11sin="" 12sout="" 13cin_disconnect="" 14cin="" 15cout="" 16ksft_skip=4 17capture=false 18timeout_poll=30 19timeout_test=$((timeout_poll * 2 + 1)) 20ipv6=true 21ethtool_random_on=true 22tc_delay="$((RANDOM%50))" 23tc_loss=$((RANDOM%101)) 24testmode="" 25sndbuf=0 26rcvbuf=0 27options_log=true 28do_tcp=0 29checksum=false 30filesize=0 31connect_per_transfer=1 32 33if [ $tc_loss -eq 100 ];then 34 tc_loss=1% 35elif [ $tc_loss -ge 10 ]; then 36 tc_loss=0.$tc_loss% 37elif [ $tc_loss -ge 1 ]; then 38 tc_loss=0.0$tc_loss% 39else 40 tc_loss="" 41fi 42 43usage() { 44 echo "Usage: $0 [ -a ]" 45 echo -e "\t-d: tc/netem delay in milliseconds, e.g. \"-d 10\" (default random)" 46 echo -e "\t-l: tc/netem loss percentage, e.g. \"-l 0.02\" (default random)" 47 echo -e "\t-r: tc/netem reorder mode, e.g. \"-r 25% 50% gap 5\", use "-r 0" to disable reordering (default random)" 48 echo -e "\t-e: ethtool features to disable, e.g.: \"-e tso -e gso\" (default: randomly disable any of tso/gso/gro)" 49 echo -e "\t-4: IPv4 only: disable IPv6 tests (default: test both IPv4 and IPv6)" 50 echo -e "\t-c: capture packets for each test using tcpdump (default: no capture)" 51 echo -e "\t-f: size of file to transfer in bytes (default random)" 52 echo -e "\t-S: set sndbuf value (default: use kernel default)" 53 echo -e "\t-R: set rcvbuf value (default: use kernel default)" 54 echo -e "\t-m: test mode (poll, sendfile; default: poll)" 55 echo -e "\t-t: also run tests with TCP (use twice to non-fallback tcp)" 56 echo -e "\t-C: enable the MPTCP data checksum" 57} 58 59while getopts "$optstring" option;do 60 case "$option" in 61 "h") 62 usage $0 63 exit 0 64 ;; 65 "d") 66 if [ $OPTARG -ge 0 ];then 67 tc_delay="$OPTARG" 68 else 69 echo "-d requires numeric argument, got \"$OPTARG\"" 1>&2 70 exit 1 71 fi 72 ;; 73 "e") 74 ethtool_args="$ethtool_args $OPTARG off" 75 ethtool_random_on=false 76 ;; 77 "l") 78 tc_loss="$OPTARG" 79 ;; 80 "r") 81 tc_reorder="$OPTARG" 82 ;; 83 "4") 84 ipv6=false 85 ;; 86 "c") 87 capture=true 88 ;; 89 "S") 90 if [ $OPTARG -ge 0 ];then 91 sndbuf="$OPTARG" 92 else 93 echo "-S requires numeric argument, got \"$OPTARG\"" 1>&2 94 exit 1 95 fi 96 ;; 97 "R") 98 if [ $OPTARG -ge 0 ];then 99 rcvbuf="$OPTARG" 100 else 101 echo "-R requires numeric argument, got \"$OPTARG\"" 1>&2 102 exit 1 103 fi 104 ;; 105 "m") 106 testmode="$OPTARG" 107 ;; 108 "f") 109 filesize="$OPTARG" 110 ;; 111 "t") 112 do_tcp=$((do_tcp+1)) 113 ;; 114 "C") 115 checksum=true 116 ;; 117 "?") 118 usage $0 119 exit 1 120 ;; 121 esac 122done 123 124sec=$(date +%s) 125rndh=$(printf %x $sec)-$(mktemp -u XXXXXX) 126ns1="ns1-$rndh" 127ns2="ns2-$rndh" 128ns3="ns3-$rndh" 129ns4="ns4-$rndh" 130 131TEST_COUNT=0 132TEST_GROUP="" 133 134cleanup() 135{ 136 rm -f "$cin_disconnect" "$cout_disconnect" 137 rm -f "$cin" "$cout" 138 rm -f "$sin" "$sout" 139 rm -f "$capout" 140 141 local netns 142 for netns in "$ns1" "$ns2" "$ns3" "$ns4";do 143 ip netns del $netns 144 rm -f /tmp/$netns.{nstat,out} 145 done 146} 147 148mptcp_lib_check_mptcp 149mptcp_lib_check_kallsyms 150 151ip -Version > /dev/null 2>&1 152if [ $? -ne 0 ];then 153 echo "SKIP: Could not run test without ip tool" 154 exit $ksft_skip 155fi 156 157sin=$(mktemp) 158sout=$(mktemp) 159cin=$(mktemp) 160cout=$(mktemp) 161capout=$(mktemp) 162cin_disconnect="$cin".disconnect 163cout_disconnect="$cout".disconnect 164trap cleanup EXIT 165 166for i in "$ns1" "$ns2" "$ns3" "$ns4";do 167 ip netns add $i || exit $ksft_skip 168 ip -net $i link set lo up 169done 170 171# "$ns1" ns2 ns3 ns4 172# ns1eth2 ns2eth1 ns2eth3 ns3eth2 ns3eth4 ns4eth3 173# - drop 1% -> reorder 25% 174# <- TSO off - 175 176ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth1 netns "$ns2" 177ip link add ns2eth3 netns "$ns2" type veth peer name ns3eth2 netns "$ns3" 178ip link add ns3eth4 netns "$ns3" type veth peer name ns4eth3 netns "$ns4" 179 180ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth2 181ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth2 nodad 182 183ip -net "$ns1" link set ns1eth2 up 184ip -net "$ns1" route add default via 10.0.1.2 185ip -net "$ns1" route add default via dead:beef:1::2 186 187ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1 188ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad 189ip -net "$ns2" link set ns2eth1 up 190 191ip -net "$ns2" addr add 10.0.2.1/24 dev ns2eth3 192ip -net "$ns2" addr add dead:beef:2::1/64 dev ns2eth3 nodad 193ip -net "$ns2" link set ns2eth3 up 194ip -net "$ns2" route add default via 10.0.2.2 195ip -net "$ns2" route add default via dead:beef:2::2 196ip netns exec "$ns2" sysctl -q net.ipv4.ip_forward=1 197ip netns exec "$ns2" sysctl -q net.ipv6.conf.all.forwarding=1 198 199ip -net "$ns3" addr add 10.0.2.2/24 dev ns3eth2 200ip -net "$ns3" addr add dead:beef:2::2/64 dev ns3eth2 nodad 201ip -net "$ns3" link set ns3eth2 up 202 203ip -net "$ns3" addr add 10.0.3.2/24 dev ns3eth4 204ip -net "$ns3" addr add dead:beef:3::2/64 dev ns3eth4 nodad 205ip -net "$ns3" link set ns3eth4 up 206ip -net "$ns3" route add default via 10.0.2.1 207ip -net "$ns3" route add default via dead:beef:2::1 208ip netns exec "$ns3" sysctl -q net.ipv4.ip_forward=1 209ip netns exec "$ns3" sysctl -q net.ipv6.conf.all.forwarding=1 210 211ip -net "$ns4" addr add 10.0.3.1/24 dev ns4eth3 212ip -net "$ns4" addr add dead:beef:3::1/64 dev ns4eth3 nodad 213ip -net "$ns4" link set ns4eth3 up 214ip -net "$ns4" route add default via 10.0.3.2 215ip -net "$ns4" route add default via dead:beef:3::2 216 217if $checksum; then 218 for i in "$ns1" "$ns2" "$ns3" "$ns4";do 219 ip netns exec $i sysctl -q net.mptcp.checksum_enabled=1 220 done 221fi 222 223set_ethtool_flags() { 224 local ns="$1" 225 local dev="$2" 226 local flags="$3" 227 228 ip netns exec $ns ethtool -K $dev $flags 2>/dev/null 229 [ $? -eq 0 ] && echo "INFO: set $ns dev $dev: ethtool -K $flags" 230} 231 232set_random_ethtool_flags() { 233 local flags="" 234 local r=$RANDOM 235 236 local pick1=$((r & 1)) 237 local pick2=$((r & 2)) 238 local pick3=$((r & 4)) 239 240 [ $pick1 -ne 0 ] && flags="tso off" 241 [ $pick2 -ne 0 ] && flags="$flags gso off" 242 [ $pick3 -ne 0 ] && flags="$flags gro off" 243 244 [ -z "$flags" ] && return 245 246 set_ethtool_flags "$1" "$2" "$flags" 247} 248 249if $ethtool_random_on;then 250 set_random_ethtool_flags "$ns3" ns3eth2 251 set_random_ethtool_flags "$ns4" ns4eth3 252else 253 set_ethtool_flags "$ns3" ns3eth2 "$ethtool_args" 254 set_ethtool_flags "$ns4" ns4eth3 "$ethtool_args" 255fi 256 257print_file_err() 258{ 259 ls -l "$1" 1>&2 260 echo "Trailing bytes are: " 261 tail -c 27 "$1" 262} 263 264check_transfer() 265{ 266 local in=$1 267 local out=$2 268 local what=$3 269 270 cmp "$in" "$out" > /dev/null 2>&1 271 if [ $? -ne 0 ] ;then 272 echo "[ FAIL ] $what does not match (in, out):" 273 print_file_err "$in" 274 print_file_err "$out" 275 276 return 1 277 fi 278 279 return 0 280} 281 282check_mptcp_disabled() 283{ 284 local disabled_ns="ns_disabled-$rndh" 285 ip netns add ${disabled_ns} || exit $ksft_skip 286 287 # net.mptcp.enabled should be enabled by default 288 if [ "$(ip netns exec ${disabled_ns} sysctl net.mptcp.enabled | awk '{ print $3 }')" -ne 1 ]; then 289 echo -e "net.mptcp.enabled sysctl is not 1 by default\t\t[ FAIL ]" 290 mptcp_lib_result_fail "net.mptcp.enabled sysctl is not 1 by default" 291 ret=1 292 return 1 293 fi 294 ip netns exec ${disabled_ns} sysctl -q net.mptcp.enabled=0 295 296 local err=0 297 LC_ALL=C ip netns exec ${disabled_ns} ./mptcp_connect -p 10000 -s MPTCP 127.0.0.1 < "$cin" 2>&1 | \ 298 grep -q "^socket: Protocol not available$" && err=1 299 ip netns delete ${disabled_ns} 300 301 if [ ${err} -eq 0 ]; then 302 echo -e "New MPTCP socket cannot be blocked via sysctl\t\t[ FAIL ]" 303 mptcp_lib_result_fail "New MPTCP socket cannot be blocked via sysctl" 304 ret=1 305 return 1 306 fi 307 308 echo -e "New MPTCP socket can be blocked via sysctl\t\t[ OK ]" 309 mptcp_lib_result_pass "New MPTCP socket can be blocked via sysctl" 310 return 0 311} 312 313# $1: IP address 314is_v6() 315{ 316 [ -z "${1##*:*}" ] 317} 318 319do_ping() 320{ 321 local listener_ns="$1" 322 local connector_ns="$2" 323 local connect_addr="$3" 324 local ping_args="-q -c 1" 325 local rc=0 326 327 if is_v6 "${connect_addr}"; then 328 $ipv6 || return 0 329 ping_args="${ping_args} -6" 330 fi 331 332 ip netns exec ${connector_ns} ping ${ping_args} $connect_addr >/dev/null || rc=1 333 334 if [ $rc -ne 0 ] ; then 335 echo "$listener_ns -> $connect_addr connectivity [ FAIL ]" 1>&2 336 ret=1 337 338 return 1 339 fi 340 341 return 0 342} 343 344# $1: ns, $2: port 345wait_local_port_listen() 346{ 347 local listener_ns="${1}" 348 local port="${2}" 349 350 local port_hex i 351 352 port_hex="$(printf "%04X" "${port}")" 353 for i in $(seq 10); do 354 ip netns exec "${listener_ns}" cat /proc/net/tcp* | \ 355 awk "BEGIN {rc=1} {if (\$2 ~ /:${port_hex}\$/ && \$4 ~ /0A/) {rc=0; exit}} END {exit rc}" && 356 break 357 sleep 0.1 358 done 359} 360 361do_transfer() 362{ 363 local listener_ns="$1" 364 local connector_ns="$2" 365 local cl_proto="$3" 366 local srv_proto="$4" 367 local connect_addr="$5" 368 local local_addr="$6" 369 local extra_args="$7" 370 371 local port 372 port=$((10000+$TEST_COUNT)) 373 TEST_COUNT=$((TEST_COUNT+1)) 374 375 if [ "$rcvbuf" -gt 0 ]; then 376 extra_args="$extra_args -R $rcvbuf" 377 fi 378 379 if [ "$sndbuf" -gt 0 ]; then 380 extra_args="$extra_args -S $sndbuf" 381 fi 382 383 if [ -n "$testmode" ]; then 384 extra_args="$extra_args -m $testmode" 385 fi 386 387 if [ -n "$extra_args" ] && $options_log; then 388 echo "INFO: extra options: $extra_args" 389 fi 390 options_log=false 391 392 :> "$cout" 393 :> "$sout" 394 :> "$capout" 395 396 local addr_port 397 addr_port=$(printf "%s:%d" ${connect_addr} ${port}) 398 local result_msg 399 result_msg="$(printf "%.3s %-5s -> %.3s (%-20s) %-5s" ${connector_ns} ${cl_proto} ${listener_ns} ${addr_port} ${srv_proto})" 400 printf "%s\t" "${result_msg}" 401 402 if $capture; then 403 local capuser 404 if [ -z $SUDO_USER ] ; then 405 capuser="" 406 else 407 capuser="-Z $SUDO_USER" 408 fi 409 410 local capfile="${rndh}-${connector_ns:0:3}-${listener_ns:0:3}-${cl_proto}-${srv_proto}-${connect_addr}-${port}" 411 local capopt="-i any -s 65535 -B 32768 ${capuser}" 412 413 ip netns exec ${listener_ns} tcpdump ${capopt} -w "${capfile}-listener.pcap" >> "${capout}" 2>&1 & 414 local cappid_listener=$! 415 416 ip netns exec ${connector_ns} tcpdump ${capopt} -w "${capfile}-connector.pcap" >> "${capout}" 2>&1 & 417 local cappid_connector=$! 418 419 sleep 1 420 fi 421 422 NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \ 423 nstat -n 424 if [ ${listener_ns} != ${connector_ns} ]; then 425 NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \ 426 nstat -n 427 fi 428 429 local stat_synrx_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX") 430 local stat_ackrx_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableACKRX") 431 local stat_cookietx_last=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesSent") 432 local stat_cookierx_last=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesRecv") 433 local stat_csum_err_s=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtDataCsumErr") 434 local stat_csum_err_c=$(mptcp_lib_get_counter "${connector_ns}" "MPTcpExtDataCsumErr") 435 436 timeout ${timeout_test} \ 437 ip netns exec ${listener_ns} \ 438 ./mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \ 439 $extra_args $local_addr < "$sin" > "$sout" & 440 local spid=$! 441 442 wait_local_port_listen "${listener_ns}" "${port}" 443 444 local start 445 start=$(date +%s%3N) 446 timeout ${timeout_test} \ 447 ip netns exec ${connector_ns} \ 448 ./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \ 449 $extra_args $connect_addr < "$cin" > "$cout" & 450 local cpid=$! 451 452 wait $cpid 453 local retc=$? 454 wait $spid 455 local rets=$? 456 457 local stop 458 stop=$(date +%s%3N) 459 460 if $capture; then 461 sleep 1 462 kill ${cappid_listener} 463 kill ${cappid_connector} 464 fi 465 466 NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \ 467 nstat | grep Tcp > /tmp/${listener_ns}.out 468 if [ ${listener_ns} != ${connector_ns} ]; then 469 NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \ 470 nstat | grep Tcp > /tmp/${connector_ns}.out 471 fi 472 473 local duration 474 duration=$((stop-start)) 475 result_msg+=" # time=${duration}ms" 476 printf "(duration %05sms) " "${duration}" 477 if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then 478 echo "[ FAIL ] client exit code $retc, server $rets" 1>&2 479 echo -e "\nnetns ${listener_ns} socket stat for ${port}:" 1>&2 480 ip netns exec ${listener_ns} ss -Menita 1>&2 -o "sport = :$port" 481 cat /tmp/${listener_ns}.out 482 echo -e "\nnetns ${connector_ns} socket stat for ${port}:" 1>&2 483 ip netns exec ${connector_ns} ss -Menita 1>&2 -o "dport = :$port" 484 [ ${listener_ns} != ${connector_ns} ] && cat /tmp/${connector_ns}.out 485 486 echo 487 cat "$capout" 488 mptcp_lib_result_fail "${TEST_GROUP}: ${result_msg}" 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=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX") 498 local stat_ackrx_now_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableACKRX") 499 local stat_cookietx_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesSent") 500 local stat_cookierx_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesRecv") 501 local stat_ooo_now=$(mptcp_lib_get_counter "${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+$connect_per_transfer)) 511 expect_ackrx=$((stat_ackrx_last_l+$connect_per_transfer)) 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 $checksum; then 530 local csum_err_s=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtDataCsumErr") 531 local csum_err_c=$(mptcp_lib_get_counter "${connector_ns}" "MPTcpExtDataCsumErr") 532 533 local csum_err_s_nr=$((csum_err_s - stat_csum_err_s)) 534 if [ $csum_err_s_nr -gt 0 ]; then 535 printf "[ FAIL ]\nserver got $csum_err_s_nr data checksum error[s]" 536 rets=1 537 fi 538 539 local csum_err_c_nr=$((csum_err_c - stat_csum_err_c)) 540 if [ $csum_err_c_nr -gt 0 ]; then 541 printf "[ FAIL ]\nclient got $csum_err_c_nr data checksum error[s]" 542 retc=1 543 fi 544 fi 545 546 if [ $retc -eq 0 ] && [ $rets -eq 0 ]; then 547 printf "[ OK ]" 548 mptcp_lib_result_pass "${TEST_GROUP}: ${result_msg}" 549 else 550 mptcp_lib_result_fail "${TEST_GROUP}: ${result_msg}" 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="$ns2" 690 local lret=0 691 local r6flag="" 692 693 TEST_GROUP="${msg}" 694 695 # skip if we don't want v6 696 if ! $ipv6 && is_v6 "${connect_addr}"; then 697 return 0 698 fi 699 700 # IP(V6)_TRANSPARENT has been added after TOS support which came with 701 # the required infrastructure in MPTCP sockopt code. To support TOS, the 702 # following function has been exported (T). Not great but better than 703 # checking for a specific kernel version. 704 if ! mptcp_lib_kallsyms_has "T __ip_sock_set_tos$"; then 705 echo "INFO: ${msg} not supported by the kernel: SKIP" 706 mptcp_lib_result_skip "${TEST_GROUP}" 707 return 708 fi 709 710ip netns exec "$listener_ns" nft -f /dev/stdin <<"EOF" 711flush ruleset 712table inet mangle { 713 chain divert { 714 type filter hook prerouting priority -150; 715 716 meta l4proto tcp socket transparent 1 meta mark set 1 accept 717 tcp dport 20000 tproxy to :20000 meta mark set 1 accept 718 } 719} 720EOF 721 if [ $? -ne 0 ]; then 722 echo "SKIP: $msg, could not load nft ruleset" 723 mptcp_lib_fail_if_expected_feature "nft rules" 724 mptcp_lib_result_skip "${TEST_GROUP}" 725 return 726 fi 727 728 local local_addr 729 if is_v6 "${connect_addr}"; then 730 local_addr="::" 731 r6flag="-6" 732 else 733 local_addr="0.0.0.0" 734 fi 735 736 ip -net "$listener_ns" $r6flag rule add fwmark 1 lookup 100 737 if [ $? -ne 0 ]; then 738 ip netns exec "$listener_ns" nft flush ruleset 739 echo "SKIP: $msg, ip $r6flag rule failed" 740 mptcp_lib_fail_if_expected_feature "ip rule" 741 mptcp_lib_result_skip "${TEST_GROUP}" 742 return 743 fi 744 745 ip -net "$listener_ns" route add local $local_addr/0 dev lo table 100 746 if [ $? -ne 0 ]; then 747 ip netns exec "$listener_ns" nft flush ruleset 748 ip -net "$listener_ns" $r6flag rule del fwmark 1 lookup 100 749 echo "SKIP: $msg, ip route add local $local_addr failed" 750 mptcp_lib_fail_if_expected_feature "ip route" 751 mptcp_lib_result_skip "${TEST_GROUP}" 752 return 753 fi 754 755 echo "INFO: test $msg" 756 757 TEST_COUNT=10000 758 local extra_args="-o TRANSPARENT" 759 do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \ 760 ${connect_addr} ${local_addr} "${extra_args}" 761 lret=$? 762 763 ip netns exec "$listener_ns" nft flush ruleset 764 ip -net "$listener_ns" $r6flag rule del fwmark 1 lookup 100 765 ip -net "$listener_ns" route del local $local_addr/0 dev lo table 100 766 767 if [ $lret -ne 0 ]; then 768 echo "FAIL: $msg, mptcp connection error" 1>&2 769 ret=$lret 770 return 1 771 fi 772 773 echo "PASS: $msg" 774 return 0 775} 776 777run_tests_peekmode() 778{ 779 local peekmode="$1" 780 781 TEST_GROUP="peek mode: ${peekmode}" 782 echo "INFO: with peek mode: ${peekmode}" 783 run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 "-P ${peekmode}" 784 run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-P ${peekmode}" 785} 786 787run_tests_mptfo() 788{ 789 TEST_GROUP="MPTFO" 790 791 if ! mptcp_lib_kallsyms_has "mptcp_fastopen_"; then 792 echo "INFO: TFO not supported by the kernel: SKIP" 793 mptcp_lib_result_skip "${TEST_GROUP}" 794 return 795 fi 796 797 echo "INFO: with MPTFO start" 798 ip netns exec "$ns1" sysctl -q net.ipv4.tcp_fastopen=2 799 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_fastopen=1 800 801 run_tests_lo "$ns1" "$ns2" 10.0.1.1 0 "-o MPTFO" 802 run_tests_lo "$ns1" "$ns2" 10.0.1.1 0 "-o MPTFO" 803 804 run_tests_lo "$ns1" "$ns2" dead:beef:1::1 0 "-o MPTFO" 805 run_tests_lo "$ns1" "$ns2" dead:beef:1::1 0 "-o MPTFO" 806 807 ip netns exec "$ns1" sysctl -q net.ipv4.tcp_fastopen=0 808 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_fastopen=0 809 echo "INFO: with MPTFO end" 810} 811 812run_tests_disconnect() 813{ 814 local old_cin=$cin 815 local old_sin=$sin 816 817 TEST_GROUP="full disconnect" 818 819 if ! mptcp_lib_kallsyms_has "mptcp_pm_data_reset$"; then 820 echo "INFO: Full disconnect not supported: SKIP" 821 mptcp_lib_result_skip "${TEST_GROUP}" 822 return 823 fi 824 825 cat $cin $cin $cin > "$cin".disconnect 826 827 # force do_transfer to cope with the multiple transmissions 828 sin="$cin.disconnect" 829 cin="$cin.disconnect" 830 cin_disconnect="$old_cin" 831 connect_per_transfer=3 832 833 echo "INFO: disconnect" 834 run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 "-I 3 -i $old_cin" 835 run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-I 3 -i $old_cin" 836 837 # restore previous status 838 sin=$old_sin 839 cin=$old_cin 840 cin_disconnect="$cin".disconnect 841 connect_per_transfer=1 842} 843 844display_time() 845{ 846 time_end=$(date +%s) 847 time_run=$((time_end-time_start)) 848 849 echo "Time: ${time_run} seconds" 850} 851 852log_if_error() 853{ 854 local msg="$1" 855 856 if [ ${ret} -ne 0 ]; then 857 echo "FAIL: ${msg}" 1>&2 858 859 final_ret=${ret} 860 ret=0 861 862 return ${final_ret} 863 fi 864} 865 866stop_if_error() 867{ 868 if ! log_if_error "${@}"; then 869 display_time 870 mptcp_lib_result_print_all_tap 871 exit ${final_ret} 872 fi 873} 874 875make_file "$cin" "client" 876make_file "$sin" "server" 877 878check_mptcp_disabled 879 880stop_if_error "The kernel configuration is not valid for MPTCP" 881 882echo "INFO: validating network environment with pings" 883for sender in "$ns1" "$ns2" "$ns3" "$ns4";do 884 do_ping "$ns1" $sender 10.0.1.1 885 do_ping "$ns1" $sender dead:beef:1::1 886 887 do_ping "$ns2" $sender 10.0.1.2 888 do_ping "$ns2" $sender dead:beef:1::2 889 do_ping "$ns2" $sender 10.0.2.1 890 do_ping "$ns2" $sender dead:beef:2::1 891 892 do_ping "$ns3" $sender 10.0.2.2 893 do_ping "$ns3" $sender dead:beef:2::2 894 do_ping "$ns3" $sender 10.0.3.2 895 do_ping "$ns3" $sender dead:beef:3::2 896 897 do_ping "$ns4" $sender 10.0.3.1 898 do_ping "$ns4" $sender dead:beef:3::1 899done 900 901mptcp_lib_result_code "${ret}" "ping tests" 902 903stop_if_error "Could not even run ping tests" 904 905[ -n "$tc_loss" ] && tc -net "$ns2" qdisc add dev ns2eth3 root netem loss random $tc_loss delay ${tc_delay}ms 906echo -n "INFO: Using loss of $tc_loss " 907test "$tc_delay" -gt 0 && echo -n "delay $tc_delay ms " 908 909reorder_delay=$(($tc_delay / 4)) 910 911if [ -z "${tc_reorder}" ]; then 912 reorder1=$((RANDOM%10)) 913 reorder1=$((100 - reorder1)) 914 reorder2=$((RANDOM%100)) 915 916 if [ $reorder_delay -gt 0 ] && [ $reorder1 -lt 100 ] && [ $reorder2 -gt 0 ]; then 917 tc_reorder="reorder ${reorder1}% ${reorder2}%" 918 echo -n "$tc_reorder with delay ${reorder_delay}ms " 919 fi 920elif [ "$tc_reorder" = "0" ];then 921 tc_reorder="" 922elif [ "$reorder_delay" -gt 0 ];then 923 # reordering requires some delay 924 tc_reorder="reorder $tc_reorder" 925 echo -n "$tc_reorder with delay ${reorder_delay}ms " 926fi 927 928echo "on ns3eth4" 929 930tc -net "$ns3" qdisc add dev ns3eth4 root netem delay ${reorder_delay}ms $tc_reorder 931 932TEST_GROUP="loopback v4" 933run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 934stop_if_error "Could not even run loopback test" 935 936TEST_GROUP="loopback v6" 937run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 938stop_if_error "Could not even run loopback v6 test" 939 940TEST_GROUP="multihosts" 941for sender in $ns1 $ns2 $ns3 $ns4;do 942 # ns1<->ns2 is not subject to reordering/tc delays. Use it to test 943 # mptcp syncookie support. 944 if [ $sender = $ns1 ]; then 945 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=2 946 else 947 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=1 948 fi 949 950 run_tests "$ns1" $sender 10.0.1.1 951 run_tests "$ns1" $sender dead:beef:1::1 952 953 run_tests "$ns2" $sender 10.0.1.2 954 run_tests "$ns2" $sender dead:beef:1::2 955 run_tests "$ns2" $sender 10.0.2.1 956 run_tests "$ns2" $sender dead:beef:2::1 957 958 run_tests "$ns3" $sender 10.0.2.2 959 run_tests "$ns3" $sender dead:beef:2::2 960 run_tests "$ns3" $sender 10.0.3.2 961 run_tests "$ns3" $sender dead:beef:3::2 962 963 run_tests "$ns4" $sender 10.0.3.1 964 run_tests "$ns4" $sender dead:beef:3::1 965 966 log_if_error "Tests with $sender as a sender have failed" 967done 968 969run_tests_peekmode "saveWithPeek" 970run_tests_peekmode "saveAfterPeek" 971log_if_error "Tests with peek mode have failed" 972 973# MPTFO (MultiPath TCP Fatopen tests) 974run_tests_mptfo 975log_if_error "Tests with MPTFO have failed" 976 977# connect to ns4 ip address, ns2 should intercept/proxy 978run_test_transparent 10.0.3.1 "tproxy ipv4" 979run_test_transparent dead:beef:3::1 "tproxy ipv6" 980log_if_error "Tests with tproxy have failed" 981 982run_tests_disconnect 983log_if_error "Tests of the full disconnection have failed" 984 985display_time 986mptcp_lib_result_print_all_tap 987exit ${final_ret} 988