| #!/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 |
| port=$((10000 - 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 ${KSFT_PASS} |
| ;; |
| "d") |
| if [ $OPTARG -ge 0 ];then |
| tc_delay="$OPTARG" |
| else |
| echo "-d requires numeric argument, got \"$OPTARG\"" 1>&2 |
| exit ${KSFT_FAIL} |
| fi |
| ;; |
| "e") |
| ethtool_args="$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 ${KSFT_FAIL} |
| fi |
| ;; |
| "R") |
| if [ $OPTARG -ge 0 ];then |
| rcvbuf="$OPTARG" |
| else |
| echo "-R requires numeric argument, got \"$OPTARG\"" 1>&2 |
| exit ${KSFT_FAIL} |
| fi |
| ;; |
| "m") |
| testmode="$OPTARG" |
| ;; |
| "f") |
| filesize="$OPTARG" |
| ;; |
| "t") |
| do_tcp=$((do_tcp+1)) |
| ;; |
| "C") |
| checksum=true |
| ;; |
| "?") |
| usage $0 |
| exit ${KSFT_FAIL} |
| ;; |
| esac |
| done |
| |
| ns1="" |
| ns2="" |
| ns3="" |
| ns4="" |
| |
| TEST_GROUP="" |
| |
| # This function is used in the cleanup trap |
| #shellcheck disable=SC2317 |
| cleanup() |
| { |
| rm -f "$cin_disconnect" "$cout_disconnect" |
| rm -f "$cin" "$cout" |
| rm -f "$sin" "$sout" |
| rm -f "$capout" |
| |
| mptcp_lib_ns_exit "${ns1}" "${ns2}" "${ns3}" "${ns4}" |
| } |
| |
| mptcp_lib_check_mptcp |
| mptcp_lib_check_kallsyms |
| mptcp_lib_check_tools ip tc |
| |
| sin=$(mktemp) |
| sout=$(mktemp) |
| cin=$(mktemp) |
| cout=$(mktemp) |
| capout=$(mktemp) |
| cin_disconnect="$cin".disconnect |
| cout_disconnect="$cout".disconnect |
| trap cleanup EXIT |
| |
| mptcp_lib_ns_init ns1 ns2 ns3 ns4 |
| |
| # "$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 |
| mptcp_lib_pr_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 "$ethtool_args" |
| fi |
| |
| print_larger_title() { |
| # here we don't have the time, a bit longer for the alignment |
| MPTCP_LIB_TEST_FORMAT="%02u %-69s" \ |
| mptcp_lib_print_title "${@}" |
| } |
| |
| check_mptcp_disabled() |
| { |
| local disabled_ns |
| mptcp_lib_ns_init disabled_ns |
| |
| print_larger_title "New MPTCP socket can be blocked via sysctl" |
| |
| # mainly to cover more code |
| if ! ip netns exec ${disabled_ns} sysctl net.mptcp >/dev/null; then |
| mptcp_lib_pr_fail "not able to list net.mptcp sysctl knobs" |
| mptcp_lib_result_fail "not able to list net.mptcp sysctl knobs" |
| ret=${KSFT_FAIL} |
| return 1 |
| fi |
| |
| # net.mptcp.enabled should be enabled by default |
| if [ "$(ip netns exec ${disabled_ns} sysctl net.mptcp.enabled | awk '{ print $3 }')" -ne 1 ]; then |
| mptcp_lib_pr_fail "net.mptcp.enabled sysctl is not 1 by default" |
| mptcp_lib_result_fail "net.mptcp.enabled sysctl is not 1 by default" |
| ret=${KSFT_FAIL} |
| 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$" && err=1 |
| mptcp_lib_ns_exit "${disabled_ns}" |
| |
| if [ ${err} -eq 0 ]; then |
| mptcp_lib_pr_fail "New MPTCP socket cannot be blocked via sysctl" |
| mptcp_lib_result_fail "New MPTCP socket cannot be blocked via sysctl" |
| ret=${KSFT_FAIL} |
| return 1 |
| fi |
| |
| mptcp_lib_pr_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 [ $rc -ne 0 ] ; then |
| mptcp_lib_pr_fail "$listener_ns -> $connect_addr connectivity" |
| ret=${KSFT_FAIL} |
| |
| 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="$7" |
| |
| port=$((port + 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 |
| mptcp_lib_pr_info "extra options: $extra_args" |
| fi |
| options_log=false |
| |
| :> "$cout" |
| :> "$sout" |
| :> "$capout" |
| |
| local addr_port |
| addr_port=$(printf "%s:%d" ${connect_addr} ${port}) |
| local pretty_title |
| pretty_title="$(printf "%.3s %-5s -> %.3s (%-20s) %-5s" ${connector_ns} ${cl_proto} ${listener_ns} ${addr_port} ${srv_proto})" |
| mptcp_lib_print_title "${pretty_title}" |
| |
| local tap_title="${connector_ns:0:3} ${cl_proto} -> ${listener_ns:0:3} (${addr_port}) ${srv_proto}" |
| |
| if $capture; then |
| local capuser |
| local rndh="${connector_ns:4}" |
| 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=$((stop-start)) |
| printf "(duration %05sms) " "${duration}" |
| if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then |
| mptcp_lib_pr_fail "client exit code $retc, server $rets" |
| 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}: ${tap_title}" |
| 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 ${expect_synrx} ]; then |
| mptcp_lib_pr_fail "lower MPC SYN rx (${stat_synrx_now_l})" \ |
| "than expected (${expect_synrx})" |
| retc=1 |
| fi |
| if [ ${stat_ackrx_now_l} -lt ${expect_ackrx} ] && [ ${stat_ooo_now} -eq 0 ]; then |
| if [ ${stat_ooo_now} -eq 0 ]; then |
| mptcp_lib_pr_fail "lower MPC ACK rx (${stat_ackrx_now_l})" \ |
| "than expected (${expect_ackrx})" |
| 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 |
| mptcp_lib_pr_fail "server got ${csum_err_s_nr} data checksum error[s]" |
| rets=1 |
| fi |
| |
| local csum_err_c_nr=$((csum_err_c - stat_csum_err_c)) |
| if [ $csum_err_c_nr -gt 0 ]; then |
| mptcp_lib_pr_fail "client got ${csum_err_c_nr} data checksum error[s]" |
| 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 ] && [ $rets -eq 0 ]; then |
| mptcp_lib_pr_ok "${extra:1}" |
| mptcp_lib_result_pass "${TEST_GROUP}: ${tap_title}" |
| else |
| if [ -n "${extra}" ]; then |
| mptcp_lib_print_warn "${extra:1}" |
| fi |
| mptcp_lib_result_fail "${TEST_GROUP}: ${tap_title}" |
| fi |
| |
| cat "$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$"; then |
| mptcp_lib_pr_skip "${msg} not supported by the kernel" |
| 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 |
| mptcp_lib_pr_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 |
| mptcp_lib_pr_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" $r6flag rule del fwmark 1 lookup 100 |
| mptcp_lib_pr_skip "$msg, ip route add local $local_addr failed" |
| mptcp_lib_fail_if_expected_feature "ip route" |
| mptcp_lib_result_skip "${TEST_GROUP}" |
| return |
| fi |
| |
| mptcp_lib_pr_info "test $msg" |
| |
| port=$((20000 - 1)) |
| 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 [ $lret -ne 0 ]; then |
| mptcp_lib_pr_fail "$msg, mptcp connection error" |
| ret=$lret |
| return 1 |
| fi |
| |
| mptcp_lib_pr_info "$msg pass" |
| return 0 |
| } |
| |
| run_tests_peekmode() |
| { |
| local peekmode="$1" |
| |
| TEST_GROUP="peek mode: ${peekmode}" |
| mptcp_lib_pr_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 ${peekmode}" |
| } |
| |
| run_tests_mptfo() |
| { |
| TEST_GROUP="MPTFO" |
| |
| if ! mptcp_lib_kallsyms_has "mptcp_fastopen_"; then |
| mptcp_lib_pr_skip "TFO not supported by the kernel" |
| mptcp_lib_result_skip "${TEST_GROUP}" |
| return |
| fi |
| |
| mptcp_lib_pr_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 |
| mptcp_lib_pr_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$"; then |
| mptcp_lib_pr_skip "Full disconnect not supported" |
| mptcp_lib_result_skip "${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="$old_cin" |
| connect_per_transfer=3 |
| |
| mptcp_lib_pr_info "disconnect" |
| run_tests_lo "$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 [ ${ret} -ne 0 ]; then |
| mptcp_lib_pr_fail "${msg}" |
| |
| final_ret=${ret} |
| ret=${KSFT_PASS} |
| |
| 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 "$sin" "server" |
| |
| mptcp_lib_subtests_last_ts_reset |
| |
| check_mptcp_disabled |
| |
| stop_if_error "The kernel configuration is not valid for MPTCP" |
| |
| print_larger_title "Validating network environment with pings" |
| for sender in "$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" |
| mptcp_lib_pr_ok |
| |
| [ -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 |
| |
| mptcp_lib_pr_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} |
