/tools/testing/selftests/net/mptcp/mptcp_connect.sh
Shell | 858 lines | 693 code | 146 blank | 19 comment | 94 complexity | 3848755e7b896051d5c039257bfa347b MD5 | raw file
- #!/bin/bash
- # SPDX-License-Identifier: GPL-2.0
- time_start=$(date +%s)
- optstring="S:R:d:e:l:r:h4cm:f:tC"
- ret=0
- sin=""
- sout=""
- cin=""
- cout=""
- ksft_skip=4
- capture=false
- timeout_poll=30
- timeout_test=$((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
- 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
- cleanup()
- {
- 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
- }
- 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)
- 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
- ip netns exec ${i} sysctl -q net.mptcp.enabled=1
- done
- # "$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"
- ip netns exec $ns ethtool -K $dev $flags 2>/dev/null
- [ $? -eq 0 ] && echo "INFO: set $ns dev $dev: ethtool -K $flags"
- }
- set_random_ethtool_flags() {
- local flags=""
- local r=$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_file_err()
- {
- ls -l "$1" 1>&2
- echo "Trailing bytes are: "
- tail -c 27 "$1"
- }
- check_transfer()
- {
- local in=$1
- local out=$2
- local what=$3
- cmp "$in" "$out" > /dev/null 2>&1
- if [ $? -ne 0 ] ;then
- echo "[ FAIL ] $what does not match (in, out):"
- print_file_err "$in"
- print_file_err "$out"
- return 1
- fi
- return 0
- }
- check_mptcp_disabled()
- {
- local disabled_ns
- disabled_ns="ns_disabled-$sech-$(mktemp -u XXXXXX)"
- ip netns add ${disabled_ns} || exit $ksft_skip
- # net.mptcp.enabled should be disabled by default
- if [ "$(ip netns exec ${disabled_ns} sysctl net.mptcp.enabled | awk '{ print $3 }')" -ne 0 ]; then
- echo -e "net.mptcp.enabled sysctl is not 0 by default\t\t[ FAIL ]"
- ret=1
- return 1
- fi
- 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 ]"
- ret=1
- return 1
- fi
- echo -e "New MPTCP socket can be blocked via sysctl\t\t[ OK ]"
- return 0
- }
- # $1: IP address
- is_v6()
- {
- [ -z "${1##*:*}" ]
- }
- do_ping()
- {
- local listener_ns="$1"
- local connector_ns="$2"
- local connect_addr="$3"
- local ping_args="-q -c 1"
- if is_v6 "${connect_addr}"; then
- $ipv6 || return 0
- ping_args="${ping_args} -6"
- fi
- ip netns exec ${connector_ns} ping ${ping_args} $connect_addr >/dev/null
- if [ $? -ne 0 ] ; then
- echo "$listener_ns -> $connect_addr connectivity [ FAIL ]" 1>&2
- ret=1
- return 1
- fi
- return 0
- }
- # $1: ns, $2: MIB counter
- get_mib_counter()
- {
- local listener_ns="${1}"
- local mib="${2}"
- # strip the header
- ip netns exec "${listener_ns}" \
- nstat -z -a "${mib}" | \
- tail -n+2 | \
- while read a count c rest; do
- echo $count
- done
- }
- # $1: ns, $2: port
- wait_local_port_listen()
- {
- local listener_ns="${1}"
- local port="${2}"
- local port_hex i
- port_hex="$(printf "%04X" "${port}")"
- for i in $(seq 10); do
- ip netns exec "${listener_ns}" cat /proc/net/tcp* | \
- awk "BEGIN {rc=1} {if (\$2 ~ /:${port_hex}\$/ && \$4 ~ /0A/) {rc=0; exit}} END {exit rc}" &&
- break
- sleep 0.1
- done
- }
- 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 [ "$rcvbuf" -gt 0 ]; then
- extra_args="$extra_args -R $rcvbuf"
- fi
- if [ "$sndbuf" -gt 0 ]; then
- extra_args="$extra_args -S $sndbuf"
- fi
- if [ -n "$testmode" ]; then
- extra_args="$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})
- printf "%.3s %-5s -> %.3s (%-20s) %-5s\t" ${connector_ns} ${cl_proto} ${listener_ns} ${addr_port} ${srv_proto}
- 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 ${connector_ns} \
- nstat -n
- fi
- local stat_synrx_last_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX")
- local stat_ackrx_last_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableACKRX")
- local stat_cookietx_last=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesSent")
- local stat_cookierx_last=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesRecv")
- timeout ${timeout_test} \
- ip netns exec ${listener_ns} \
- ./mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \
- $extra_args $local_addr < "$sin" > "$sout" &
- local spid=$!
- 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
- 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"
- return 1
- fi
- check_transfer $sin $cout "file received by client"
- retc=$?
- check_transfer $cin $sout "file received by server"
- rets=$?
- local stat_synrx_now_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX")
- local stat_ackrx_now_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableACKRX")
- local stat_cookietx_now=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesSent")
- local stat_cookierx_now=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesRecv")
- local stat_ooo_now=$(get_mib_counter "${listener_ns}" "TcpExtTCPOFOQueue")
- 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+1))
- expect_ackrx=$((stat_ackrx_last_l+1))
- 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} -a ${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
- printf "[ Note ] fallback due to TCP OoO"
- fi
- fi
- if [ $retc -eq 0 ] && [ $rets -eq 0 ]; then
- printf "[ OK ]"
- fi
- if [ $cookies -eq 2 ];then
- if [ $stat_cookietx_last -ge $stat_cookietx_now ] ;then
- printf " WARN: CookieSent: did not advance"
- fi
- if [ $stat_cookierx_last -ge $stat_cookierx_now ] ;then
- printf " WARN: CookieRecv: did not advance"
- fi
- else
- if [ $stat_cookietx_last -ne $stat_cookietx_now ] ;then
- printf " WARN: CookieSent: changed"
- fi
- if [ $stat_cookierx_last -ne $stat_cookierx_now ] ;then
- printf " WARN: CookieRecv: changed"
- fi
- fi
- if [ ${stat_synrx_now_l} -gt ${expect_synrx} ]; then
- printf " WARN: SYNRX: expect %d, got %d (probably retransmissions)" \
- "${expect_synrx}" "${stat_synrx_now_l}"
- fi
- if [ ${stat_ackrx_now_l} -gt ${expect_ackrx} ]; then
- printf " WARN: ACKRX: expect %d, got %d (probably retransmissions)" \
- "${expect_ackrx}" "${stat_ackrx_now_l}"
- fi
- echo
- cat "$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)))
- dd if=/dev/urandom of="$name" bs=1024 count=$ksize 2> /dev/null
- dd if=/dev/urandom conv=notrunc of="$name" bs=1 count=$rem 2> /dev/null
- echo -e "\nMPTCP_TEST_FILE_END_MARKER" >> "$name"
- 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 ! $ipv6 && is_v6 "${connect_addr}"; then
- return 0
- fi
- local local_addr
- if 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=""
- # skip if we don't want v6
- if ! $ipv6 && is_v6 "${connect_addr}"; then
- return 0
- fi
- 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
- if [ $? -ne 0 ]; then
- echo "SKIP: $msg, could not load nft ruleset"
- return
- fi
- local local_addr
- if is_v6 "${connect_addr}"; then
- local_addr="::"
- r6flag="-6"
- else
- local_addr="0.0.0.0"
- fi
- ip -net "$listener_ns" $r6flag rule add fwmark 1 lookup 100
- if [ $? -ne 0 ]; then
- ip netns exec "$listener_ns" nft flush ruleset
- echo "SKIP: $msg, ip $r6flag rule failed"
- return
- fi
- ip -net "$listener_ns" route add local $local_addr/0 dev lo table 100
- if [ $? -ne 0 ]; then
- ip netns exec "$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"
- 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"
- 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 ${peekmode}"
- }
- display_time()
- {
- time_end=$(date +%s)
- time_run=$((time_end-time_start))
- echo "Time: ${time_run} seconds"
- }
- stop_if_error()
- {
- local msg="$1"
- if [ ${ret} -ne 0 ]; then
- echo "FAIL: ${msg}" 1>&2
- display_time
- exit ${ret}
- fi
- }
- make_file "$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" $sender dead:beef:3::1
- done
- stop_if_error "Could not even run ping tests"
- [ -n "$tc_loss" ] && tc -net "$ns2" qdisc add dev ns2eth3 root netem loss random $tc_loss delay ${tc_delay}ms
- echo -n "INFO: Using loss of $tc_loss "
- test "$tc_delay" -gt 0 && echo -n "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}% ${reorder2}%"
- echo -n "$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 $tc_reorder"
- echo -n "$tc_reorder with delay ${reorder_delay}ms "
- fi
- echo "on ns3eth4"
- tc -net "$ns3" qdisc add dev ns3eth4 root netem delay ${reorder_delay}ms $tc_reorder
- run_tests_lo "$ns1" "$ns1" 10.0.1.1 1
- stop_if_error "Could not even run loopback test"
- run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1
- stop_if_error "Could not even run loopback v6 test"
- 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
- stop_if_error "Tests with $sender as a sender have failed"
- done
- run_tests_peekmode "saveWithPeek"
- run_tests_peekmode "saveAfterPeek"
- stop_if_error "Tests with peek mode 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"
- display_time
- exit $ret