name : mptcp_connect.sh #!/bin/bash # SPDX-License-Identifier: GPL-2.0 # Double quotes to prevent globbing and word splitting is recommended in new # code but we accept it, especially because there were too many before having # address all other issues detected by shellcheck. #shellcheck disable=SC2086 . "$(dirname "${0}")/mptcp_lib.sh" time_start=$(date +%s) optstring="S:R:d:e:l:r:h4cm:f:tC" ret=0 final_ret=0 sin="" sout="" cin_disconnect="" cin="" cout="" capture=false timeout_poll=30 timeout_test=$((timeout_poll * 2 + 1)) ipv6=true ethtool_random_on=true tc_delay="$((RANDOM%50))" tc_loss=$((RANDOM%101)) testmode="" sndbuf=0 rcvbuf=0 options_log=true do_tcp=0 checksum=false filesize=0 connect_per_transfer=1 if [ $tc_loss -eq 100 ];then tc_loss=1% elif [ $tc_loss -ge 10 ]; then tc_loss=0.$tc_loss% elif [ $tc_loss -ge 1 ]; then tc_loss=0.0$tc_loss% else tc_loss="" fi usage() { echo "Usage: $0 [ -a ]" echo -e "\t-d: tc/netem delay in milliseconds, e.g. \"-d 10\" (default random)" echo -e "\t-l: tc/netem loss percentage, e.g. \"-l 0.02\" (default random)" echo -e "\t-r: tc/netem reorder mode, e.g. \"-r 25% 50% gap 5\", use "-r 0" to disable reordering (default random)" echo -e "\t-e: ethtool features to disable, e.g.: \"-e tso -e gso\" (default: randomly disable any of tso/gso/gro)" echo -e "\t-4: IPv4 only: disable IPv6 tests (default: test both IPv4 and IPv6)" echo -e "\t-c: capture packets for each test using tcpdump (default: no capture)" echo -e "\t-f: size of file to transfer in bytes (default random)" echo -e "\t-S: set sndbuf value (default: use kernel default)" echo -e "\t-R: set rcvbuf value (default: use kernel default)" echo -e "\t-m: test mode (poll, sendfile; default: poll)" echo -e "\t-t: also run tests with TCP (use twice to non-fallback tcp)" echo -e "\t-C: enable the MPTCP data checksum" } while getopts "$optstring" option;do case "$option" in "h") usage $0 exit 0 ;; "d") if [ $OPTARG -ge 0 ];then tc_delay="$OPTARG" else echo "-d requires numeric argument, got \"$OPTARG\"" 1>&2 exit 1 fi ;; "e") ethtool_args="$ethtool_args $OPTARG off" ethtool_random_on=false ;; "l") tc_loss="$OPTARG" ;; "r") tc_reorder="$OPTARG" ;; "4") ipv6=false ;; "c") capture=true ;; "S") if [ $OPTARG -ge 0 ];then sndbuf="$OPTARG" else echo "-S requires numeric argument, got \"$OPTARG\"" 1>&2 exit 1 fi ;; "R") if [ $OPTARG -ge 0 ];then rcvbuf="$OPTARG" else echo "-R requires numeric argument, got \"$OPTARG\"" 1>&2 exit 1 fi ;; "m") testmode="$OPTARG" ;; "f") filesize="$OPTARG" ;; "t") do_tcp=$((do_tcp+1)) ;; "C") checksum=true ;; "?") usage $0 exit 1 ;; esac done sec=$(date +%s) rndh=$(printf %x $sec)-$(mktemp -u XXXXXX) ns1="ns1-$rndh" ns2="ns2-$rndh" ns3="ns3-$rndh" ns4="ns4-$rndh" TEST_COUNT=0 TEST_GROUP="" # This function is used in the cleanup trap #shellcheck disable=SC2317 cleanup() { rm -f "$cin_disconnect" "$cout_disconnect" rm -f "$cin" "$cout" rm -f "$sin" "$sout" rm -f "$capout" local netns for netns in "$ns1" "$ns2" "$ns3" "$ns4";do ip netns del $netns rm -f /tmp/$netns.{nstat,out} done } mptcp_lib_check_mptcp mptcp_lib_check_kallsyms ip -Version > /dev/null 2>&1 if [ $? -ne 0 ];then echo "SKIP: Could not run test without ip tool" exit $ksft_skip fi sin=$(mktemp) sout=$(mktemp) cin=$(mktemp) cout=$(mktemp) capout=$(mktemp) cin_disconnect="$cin".disconnect cout_disconnect="$cout".disconnect trap cleanup EXIT for i in "$ns1" "$ns2" "$ns3" "$ns4";do ip netns add $i || exit $ksft_skip ip -net $i link set lo up done # "$ns1" ns2 ns3 ns4 # ns1eth2 ns2eth1 ns2eth3 ns3eth2 ns3eth4 ns4eth3 # - drop 1% -> reorder 25% # <- TSO off - ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth1 netns "$ns2" ip link add ns2eth3 netns "$ns2" type veth peer name ns3eth2 netns "$ns3" ip link add ns3eth4 netns "$ns3" type veth peer name ns4eth3 netns "$ns4" ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth2 ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth2 nodad ip -net "$ns1" link set ns1eth2 up ip -net "$ns1" route add default via 10.0.1.2 ip -net "$ns1" route add default via dead:beef:1::2 ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1 ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad ip -net "$ns2" link set ns2eth1 up ip -net "$ns2" addr add 10.0.2.1/24 dev ns2eth3 ip -net "$ns2" addr add dead:beef:2::1/64 dev ns2eth3 nodad ip -net "$ns2" link set ns2eth3 up ip -net "$ns2" route add default via 10.0.2.2 ip -net "$ns2" route add default via dead:beef:2::2 ip netns exec "$ns2" sysctl -q net.ipv4.ip_forward=1 ip netns exec "$ns2" sysctl -q net.ipv6.conf.all.forwarding=1 ip -net "$ns3" addr add 10.0.2.2/24 dev ns3eth2 ip -net "$ns3" addr add dead:beef:2::2/64 dev ns3eth2 nodad ip -net "$ns3" link set ns3eth2 up ip -net "$ns3" addr add 10.0.3.2/24 dev ns3eth4 ip -net "$ns3" addr add dead:beef:3::2/64 dev ns3eth4 nodad ip -net "$ns3" link set ns3eth4 up ip -net "$ns3" route add default via 10.0.2.1 ip -net "$ns3" route add default via dead:beef:2::1 ip netns exec "$ns3" sysctl -q net.ipv4.ip_forward=1 ip netns exec "$ns3" sysctl -q net.ipv6.conf.all.forwarding=1 ip -net "$ns4" addr add 10.0.3.1/24 dev ns4eth3 ip -net "$ns4" addr add dead:beef:3::1/64 dev ns4eth3 nodad ip -net "$ns4" link set ns4eth3 up ip -net "$ns4" route add default via 10.0.3.2 ip -net "$ns4" route add default via dead:beef:3::2 if $checksum; then for i in "$ns1" "$ns2" "$ns3" "$ns4";do ip netns exec $i sysctl -q net.mptcp.checksum_enabled=1 done fi set_ethtool_flags() { local ns="$1" local dev="$2" local flags="$3" if ip netns exec $ns ethtool -K $dev $flags 2>/dev/null; then echo "INFO: set $ns dev $dev: ethtool -K $flags" fi } set_random_ethtool_flags() { local flags="" local r=$RANDOM local pick1=$((r & 1)) local pick2=$((r & 2)) local pick3=$((r & 4)) [ $pick1 -ne 0 ] && flags="tso off" [ $pick2 -ne 0 ] && flags="$flags gso off" [ $pick3 -ne 0 ] && flags="$flags gro off" [ -z "$flags" ] && return set_ethtool_flags "$1" "$2" "$flags" } if $ethtool_random_on;then set_random_ethtool_flags "$ns3" ns3eth2 set_random_ethtool_flags "$ns4" ns4eth3 else set_ethtool_flags "$ns3" ns3eth2 "$ethtool_args" set_ethtool_flags "$ns4" ns4eth3 "$ethtool_args" fi check_mptcp_disabled() { local disabled_ns="ns_disabled-$rndh" ip netns add ${disabled_ns} || exit $ksft_skip # net.mptcp.enabled should be enabled by default if [ "$(ip netns exec ${disabled_ns} sysctl net.mptcp.enabled | awk '{ print $3 }')" -ne 1 ]; then echo -e "net.mptcp.enabled sysctl is not 1 by default\t\t[ FAIL ]" mptcp_lib_result_fail "net.mptcp.enabled sysctl is not 1 by default" ret=1 return 1 fi ip netns exec ${disabled_ns} sysctl -q net.mptcp.enabled=0 local err=0 LC_ALL=C ip netns exec ${disabled_ns} ./mptcp_connect -p 10000 -s MPTCP 127.0.0.1 < "$cin" 2>&1 | \ grep -q "^socket: Protocol not available$" && err=1 ip netns delete ${disabled_ns} if [ ${err} -eq 0 ]; then echo -e "New MPTCP socket cannot be blocked via sysctl\t\t[ FAIL ]" mptcp_lib_result_fail "New MPTCP socket cannot be blocked via sysctl" ret=1 return 1 fi echo -e "New MPTCP socket can be blocked via sysctl\t\t[ OK ]" mptcp_lib_result_pass "New MPTCP socket can be blocked via sysctl" return 0 } do_ping() { local listener_ns="$1" local connector_ns="$2" local connect_addr="$3" local ping_args="-q -c 1" local rc=0 if mptcp_lib_is_v6 "${connect_addr}"; then $ipv6 || return 0 ping_args="${ping_args} -6" fi ip netns exec ${connector_ns} ping ${ping_args} $connect_addr >/dev/null || rc=1 if [ $rc -ne 0 ] ; then echo "$listener_ns -> $connect_addr connectivity [ FAIL ]" 1>&2 ret=1 return 1 fi return 0 } do_transfer() { local listener_ns="$1" local connector_ns="$2" local cl_proto="$3" local srv_proto="$4" local connect_addr="$5" local local_addr="$6" local extra_args="$7" local port port=$((10000+TEST_COUNT)) TEST_COUNT=$((TEST_COUNT+1)) if [ "$rcvbuf" -gt 0 ]; then extra_args+=" -R $rcvbuf" fi if [ "$sndbuf" -gt 0 ]; then extra_args+=" -S $sndbuf" fi if [ -n "$testmode" ]; then extra_args+=" -m $testmode" fi if [ -n "$extra_args" ] && $options_log; then echo "INFO: extra options: $extra_args" fi options_log=false :> "$cout" :> "$sout" :> "$capout" local addr_port addr_port=$(printf "%s:%d" ${connect_addr} ${port}) local result_msg result_msg="$(printf "%.3s %-5s -> %.3s (%-20s) %-5s" ${connector_ns} ${cl_proto} ${listener_ns} ${addr_port} ${srv_proto})" printf "%s\t" "${result_msg}" if $capture; then local capuser if [ -z $SUDO_USER ] ; then capuser="" else capuser="-Z $SUDO_USER" fi local capfile="${rndh}-${connector_ns:0:3}-${listener_ns:0:3}-${cl_proto}-${srv_proto}-${connect_addr}-${port}" local capopt="-i any -s 65535 -B 32768 ${capuser}" ip netns exec ${listener_ns} tcpdump ${capopt} -w "${capfile}-listener.pcap" >> "${capout}" 2>&1 & local cappid_listener=$! ip netns exec ${connector_ns} tcpdump ${capopt} -w "${capfile}-connector.pcap" >> "${capout}" 2>&1 & local cappid_connector=$! sleep 1 fi NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \ nstat -n if [ ${listener_ns} != ${connector_ns} ]; then NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \ nstat -n fi local stat_synrx_last_l local stat_ackrx_last_l local stat_cookietx_last local stat_cookierx_last local stat_csum_err_s local stat_csum_err_c local stat_tcpfb_last_l stat_synrx_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX") stat_ackrx_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableACKRX") stat_cookietx_last=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesSent") stat_cookierx_last=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesRecv") stat_csum_err_s=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtDataCsumErr") stat_csum_err_c=$(mptcp_lib_get_counter "${connector_ns}" "MPTcpExtDataCsumErr") stat_tcpfb_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableFallbackACK") timeout ${timeout_test} \ ip netns exec ${listener_ns} \ ./mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \ $extra_args $local_addr < "$sin" > "$sout" & local spid=$! mptcp_lib_wait_local_port_listen "${listener_ns}" "${port}" local start start=$(date +%s%3N) timeout ${timeout_test} \ ip netns exec ${connector_ns} \ ./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \ $extra_args $connect_addr < "$cin" > "$cout" & local cpid=$! wait $cpid local retc=$? wait $spid local rets=$? local stop stop=$(date +%s%3N) if $capture; then sleep 1 kill ${cappid_listener} kill ${cappid_connector} fi NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \ nstat | grep Tcp > /tmp/${listener_ns}.out if [ ${listener_ns} != ${connector_ns} ]; then NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \ nstat | grep Tcp > /tmp/${connector_ns}.out fi local duration duration=$((stop-start)) result_msg+=" # time=${duration}ms" printf "(duration %05sms) " "${duration}" if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then echo "[ FAIL ] client exit code $retc, server $rets" 1>&2 echo -e "\nnetns ${listener_ns} socket stat for ${port}:" 1>&2 ip netns exec ${listener_ns} ss -Menita 1>&2 -o "sport = :$port" cat /tmp/${listener_ns}.out echo -e "\nnetns ${connector_ns} socket stat for ${port}:" 1>&2 ip netns exec ${connector_ns} ss -Menita 1>&2 -o "dport = :$port" [ ${listener_ns} != ${connector_ns} ] && cat /tmp/${connector_ns}.out echo cat "$capout" mptcp_lib_result_fail "${TEST_GROUP}: ${result_msg}" return 1 fi mptcp_lib_check_transfer $sin $cout "file received by client" retc=$? mptcp_lib_check_transfer $cin $sout "file received by server" rets=$? local extra="" local stat_synrx_now_l local stat_ackrx_now_l local stat_cookietx_now local stat_cookierx_now local stat_ooo_now local stat_tcpfb_now_l stat_synrx_now_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX") stat_ackrx_now_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableACKRX") stat_cookietx_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesSent") stat_cookierx_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesRecv") stat_ooo_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtTCPOFOQueue") stat_tcpfb_now_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableFallbackACK") expect_synrx=$((stat_synrx_last_l)) expect_ackrx=$((stat_ackrx_last_l)) cookies=$(ip netns exec ${listener_ns} sysctl net.ipv4.tcp_syncookies) cookies=${cookies##*=} if [ ${cl_proto} = "MPTCP" ] && [ ${srv_proto} = "MPTCP" ]; then expect_synrx=$((stat_synrx_last_l+connect_per_transfer)) expect_ackrx=$((stat_ackrx_last_l+connect_per_transfer)) fi if [ ${stat_synrx_now_l} -lt ${expect_synrx} ]; then printf "[ FAIL ] lower MPC SYN rx (%d) than expected (%d)\n" \ "${stat_synrx_now_l}" "${expect_synrx}" 1>&2 retc=1 fi if [ ${stat_ackrx_now_l} -lt ${expect_ackrx} ] && [ ${stat_ooo_now} -eq 0 ]; then if [ ${stat_ooo_now} -eq 0 ]; then printf "[ FAIL ] lower MPC ACK rx (%d) than expected (%d)\n" \ "${stat_ackrx_now_l}" "${expect_ackrx}" 1>&2 rets=1 else extra+=" [ Note ] fallback due to TCP OoO" fi fi if $checksum; then local csum_err_s local csum_err_c csum_err_s=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtDataCsumErr") csum_err_c=$(mptcp_lib_get_counter "${connector_ns}" "MPTcpExtDataCsumErr") local csum_err_s_nr=$((csum_err_s - stat_csum_err_s)) if [ $csum_err_s_nr -gt 0 ]; then printf "[ FAIL ]\nserver got %d data checksum error[s]" ${csum_err_s_nr} rets=1 fi local csum_err_c_nr=$((csum_err_c - stat_csum_err_c)) if [ $csum_err_c_nr -gt 0 ]; then printf "[ FAIL ]\nclient got %d data checksum error[s]" ${csum_err_c_nr} retc=1 fi fi if [ ${stat_ooo_now} -eq 0 ] && [ ${stat_tcpfb_last_l} -ne ${stat_tcpfb_now_l} ]; then mptcp_lib_pr_fail "unexpected fallback to TCP" rets=1 fi if [ $cookies -eq 2 ];then if [ $stat_cookietx_last -ge $stat_cookietx_now ] ;then extra+=" WARN: CookieSent: did not advance" fi if [ $stat_cookierx_last -ge $stat_cookierx_now ] ;then extra+=" WARN: CookieRecv: did not advance" fi else if [ $stat_cookietx_last -ne $stat_cookietx_now ] ;then extra+=" WARN: CookieSent: changed" fi if [ $stat_cookierx_last -ne $stat_cookierx_now ] ;then extra+=" WARN: CookieRecv: changed" fi fi if [ ${stat_synrx_now_l} -gt ${expect_synrx} ]; then extra+=" WARN: SYNRX: expect ${expect_synrx}," extra+=" got ${stat_synrx_now_l} (probably retransmissions)" fi if [ ${stat_ackrx_now_l} -gt ${expect_ackrx} ]; then extra+=" WARN: ACKRX: expect ${expect_ackrx}," extra+=" got ${stat_ackrx_now_l} (probably retransmissions)" fi if [ $retc -eq 0 ] && [ $rets -eq 0 ]; then printf "[ OK ]%s\n" "${extra:1}" mptcp_lib_result_pass "${TEST_GROUP}: ${result_msg}" else if [ -n "${extra}" ]; then printf "%s\n" "${extra:1}" fi mptcp_lib_result_fail "${TEST_GROUP}: ${result_msg}" fi cat "$capout" [ $retc -eq 0 ] && [ $rets -eq 0 ] } make_file() { local name=$1 local who=$2 local SIZE=$filesize local ksize local rem if [ $SIZE -eq 0 ]; then local MAXSIZE=$((1024 * 1024 * 8)) local MINSIZE=$((1024 * 256)) SIZE=$(((RANDOM * RANDOM + MINSIZE) % MAXSIZE)) fi ksize=$((SIZE / 1024)) rem=$((SIZE - (ksize * 1024))) mptcp_lib_make_file $name 1024 $ksize dd if=/dev/urandom conv=notrunc of="$name" oflag=append bs=1 count=$rem 2> /dev/null echo "Created $name (size $(du -b "$name")) containing data sent by $who" } run_tests_lo() { local listener_ns="$1" local connector_ns="$2" local connect_addr="$3" local loopback="$4" local extra_args="$5" local lret=0 # skip if test programs are running inside same netns for subsequent runs. if [ $loopback -eq 0 ] && [ ${listener_ns} = ${connector_ns} ]; then return 0 fi # skip if we don't want v6 if ! $ipv6 && mptcp_lib_is_v6 "${connect_addr}"; then return 0 fi local local_addr if mptcp_lib_is_v6 "${connect_addr}"; then local_addr="::" else local_addr="0.0.0.0" fi do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \ ${connect_addr} ${local_addr} "${extra_args}" lret=$? if [ $lret -ne 0 ]; then ret=$lret return 1 fi if [ $do_tcp -eq 0 ]; then # don't bother testing fallback tcp except for loopback case. if [ ${listener_ns} != ${connector_ns} ]; then return 0 fi fi do_transfer ${listener_ns} ${connector_ns} MPTCP TCP \ ${connect_addr} ${local_addr} "${extra_args}" lret=$? if [ $lret -ne 0 ]; then ret=$lret return 1 fi do_transfer ${listener_ns} ${connector_ns} TCP MPTCP \ ${connect_addr} ${local_addr} "${extra_args}" lret=$? if [ $lret -ne 0 ]; then ret=$lret return 1 fi if [ $do_tcp -gt 1 ] ;then do_transfer ${listener_ns} ${connector_ns} TCP TCP \ ${connect_addr} ${local_addr} "${extra_args}" lret=$? if [ $lret -ne 0 ]; then ret=$lret return 1 fi fi return 0 } run_tests() { run_tests_lo $1 $2 $3 0 } run_test_transparent() { local connect_addr="$1" local msg="$2" local connector_ns="$ns1" local listener_ns="$ns2" local lret=0 local r6flag="" TEST_GROUP="${msg}" # skip if we don't want v6 if ! $ipv6 && mptcp_lib_is_v6 "${connect_addr}"; then return 0 fi # IP(V6)_TRANSPARENT has been added after TOS support which came with # the required infrastructure in MPTCP sockopt code. To support TOS, the # following function has been exported (T). Not great but better than # checking for a specific kernel version. if ! mptcp_lib_kallsyms_has "T __ip_sock_set_tos$"; then echo "INFO: ${msg} not supported by the kernel: SKIP" mptcp_lib_result_skip "${TEST_GROUP}" return fi if ! ip netns exec "$listener_ns" nft -f /dev/stdin <<"EOF" flush ruleset table inet mangle { chain divert { type filter hook prerouting priority -150; meta l4proto tcp socket transparent 1 meta mark set 1 accept tcp dport 20000 tproxy to :20000 meta mark set 1 accept } } EOF then echo "SKIP: $msg, could not load nft ruleset" mptcp_lib_fail_if_expected_feature "nft rules" mptcp_lib_result_skip "${TEST_GROUP}" return fi local local_addr if mptcp_lib_is_v6 "${connect_addr}"; then local_addr="::" r6flag="-6" else local_addr="0.0.0.0" fi if ! ip -net "$listener_ns" $r6flag rule add fwmark 1 lookup 100; then ip netns exec "$listener_ns" nft flush ruleset echo "SKIP: $msg, ip $r6flag rule failed" mptcp_lib_fail_if_expected_feature "ip rule" mptcp_lib_result_skip "${TEST_GROUP}" return fi if ! ip -net "$listener_ns" route add local $local_addr/0 dev lo table 100; then ip netns exec "$listener_ns" nft flush ruleset ip -net "$listener_ns" $r6flag rule del fwmark 1 lookup 100 echo "SKIP: $msg, ip route add local $local_addr failed" mptcp_lib_fail_if_expected_feature "ip route" mptcp_lib_result_skip "${TEST_GROUP}" return fi echo "INFO: test $msg" TEST_COUNT=10000 local extra_args="-o TRANSPARENT" do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \ ${connect_addr} ${local_addr} "${extra_args}" lret=$? ip netns exec "$listener_ns" nft flush ruleset ip -net "$listener_ns" $r6flag rule del fwmark 1 lookup 100 ip -net "$listener_ns" route del local $local_addr/0 dev lo table 100 if [ $lret -ne 0 ]; then echo "FAIL: $msg, mptcp connection error" 1>&2 ret=$lret return 1 fi echo "PASS: $msg" return 0 } run_tests_peekmode() { local peekmode="$1" TEST_GROUP="peek mode: ${peekmode}" echo "INFO: with peek mode: ${peekmode}" run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 "-P ${peekmode}" run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-P ${peekmode}" } run_tests_mptfo() { TEST_GROUP="MPTFO" if ! mptcp_lib_kallsyms_has "mptcp_fastopen_"; then echo "INFO: TFO not supported by the kernel: SKIP" mptcp_lib_result_skip "${TEST_GROUP}" return fi echo "INFO: with MPTFO start" ip netns exec "$ns1" sysctl -q net.ipv4.tcp_fastopen=2 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_fastopen=1 run_tests_lo "$ns1" "$ns2" 10.0.1.1 0 "-o MPTFO" run_tests_lo "$ns1" "$ns2" 10.0.1.1 0 "-o MPTFO" run_tests_lo "$ns1" "$ns2" dead:beef:1::1 0 "-o MPTFO" run_tests_lo "$ns1" "$ns2" dead:beef:1::1 0 "-o MPTFO" ip netns exec "$ns1" sysctl -q net.ipv4.tcp_fastopen=0 ip netns exec "$ns2" sysctl -q net.ipv4.tcp_fastopen=0 echo "INFO: with MPTFO end" } run_tests_disconnect() { local old_cin=$cin local old_sin=$sin TEST_GROUP="full disconnect" if ! mptcp_lib_kallsyms_has "mptcp_pm_data_reset$"; then echo "INFO: Full disconnect not supported: SKIP" mptcp_lib_result_skip "${TEST_GROUP}" return fi cat $cin $cin $cin > "$cin".disconnect # force do_transfer to cope with the multiple transmissions sin="$cin.disconnect" cin="$cin.disconnect" cin_disconnect="$old_cin" connect_per_transfer=3 echo "INFO: disconnect" run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 "-I 3 -i $old_cin" run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-I 3 -i $old_cin" # restore previous status sin=$old_sin cin=$old_cin cin_disconnect="$cin".disconnect connect_per_transfer=1 } display_time() { time_end=$(date +%s) time_run=$((time_end-time_start)) echo "Time: ${time_run} seconds" } log_if_error() { local msg="$1" if [ ${ret} -ne 0 ]; then echo "FAIL: ${msg}" 1>&2 final_ret=${ret} ret=0 return ${final_ret} fi } stop_if_error() { if ! log_if_error "${@}"; then display_time mptcp_lib_result_print_all_tap exit ${final_ret} fi } make_file "$cin" "client" make_file "$sin" "server" check_mptcp_disabled stop_if_error "The kernel configuration is not valid for MPTCP" echo "INFO: validating network environment with pings" for sender in "$ns1" "$ns2" "$ns3" "$ns4";do do_ping "$ns1" $sender 10.0.1.1 do_ping "$ns1" $sender dead:beef:1::1 do_ping "$ns2" $sender 10.0.1.2 do_ping "$ns2" $sender dead:beef:1::2 do_ping "$ns2" $sender 10.0.2.1 do_ping "$ns2" $sender dead:beef:2::1 do_ping "$ns3" $sender 10.0.2.2 do_ping "$ns3" $sender dead:beef:2::2 do_ping "$ns3" $sender 10.0.3.2 do_ping "$ns3" $sender dead:beef:3::2 do_ping "$ns4" $sender 10.0.3.1 do_ping "$ns4" $sender dead:beef:3::1 done mptcp_lib_result_code "${ret}" "ping tests" stop_if_error "Could not even run ping tests" [ -n "$tc_loss" ] && tc -net "$ns2" qdisc add dev ns2eth3 root netem loss random $tc_loss delay ${tc_delay}ms tc_info="loss of $tc_loss " test "$tc_delay" -gt 0 && tc_info+="delay $tc_delay ms " reorder_delay=$((tc_delay / 4)) if [ -z "${tc_reorder}" ]; then reorder1=$((RANDOM%10)) reorder1=$((100 - reorder1)) reorder2=$((RANDOM%100)) if [ $reorder_delay -gt 0 ] && [ $reorder1 -lt 100 ] && [ $reorder2 -gt 0 ]; then tc_reorder="reorder ${reorder1}% ${reorder2}%" tc_info+="$tc_reorder with delay ${reorder_delay}ms " fi elif [ "$tc_reorder" = "0" ];then tc_reorder="" elif [ "$reorder_delay" -gt 0 ];then # reordering requires some delay tc_reorder="reorder $tc_reorder" tc_info+="$tc_reorder with delay ${reorder_delay}ms " fi echo "INFO: Using ${tc_info}on ns3eth4" tc -net "$ns3" qdisc add dev ns3eth4 root netem delay ${reorder_delay}ms $tc_reorder TEST_GROUP="loopback v4" run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 stop_if_error "Could not even run loopback test" TEST_GROUP="loopback v6" run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 stop_if_error "Could not even run loopback v6 test" TEST_GROUP="multihosts" for sender in $ns1 $ns2 $ns3 $ns4;do # ns1<->ns2 is not subject to reordering/tc delays. Use it to test # mptcp syncookie support. if [ $sender = $ns1 ]; then ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=2 else ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=1 fi run_tests "$ns1" $sender 10.0.1.1 run_tests "$ns1" $sender dead:beef:1::1 run_tests "$ns2" $sender 10.0.1.2 run_tests "$ns2" $sender dead:beef:1::2 run_tests "$ns2" $sender 10.0.2.1 run_tests "$ns2" $sender dead:beef:2::1 run_tests "$ns3" $sender 10.0.2.2 run_tests "$ns3" $sender dead:beef:2::2 run_tests "$ns3" $sender 10.0.3.2 run_tests "$ns3" $sender dead:beef:3::2 run_tests "$ns4" $sender 10.0.3.1 run_tests "$ns4" $sender dead:beef:3::1 log_if_error "Tests with $sender as a sender have failed" done run_tests_peekmode "saveWithPeek" run_tests_peekmode "saveAfterPeek" log_if_error "Tests with peek mode have failed" # MPTFO (MultiPath TCP Fatopen tests) run_tests_mptfo log_if_error "Tests with MPTFO have failed" # connect to ns4 ip address, ns2 should intercept/proxy run_test_transparent 10.0.3.1 "tproxy ipv4" run_test_transparent dead:beef:3::1 "tproxy ipv6" log_if_error "Tests with tproxy have failed" run_tests_disconnect log_if_error "Tests of the full disconnection have failed" display_time mptcp_lib_result_print_all_tap exit ${final_ret}