| #!/bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| |
| ret=0 |
| sin="" |
| sout="" |
| cin="" |
| cout="" |
| ksft_skip=4 |
| timeout=30 |
| capture=0 |
| |
| TEST_COUNT=0 |
| |
| init() |
| { |
| capout=$(mktemp) |
| |
| rndh=$(printf %x $sec)-$(mktemp -u XXXXXX) |
| |
| ns1="ns1-$rndh" |
| ns2="ns2-$rndh" |
| |
| for netns in "$ns1" "$ns2";do |
| ip netns add $netns || exit $ksft_skip |
| ip -net $netns link set lo up |
| ip netns exec $netns sysctl -q net.mptcp.enabled=1 |
| ip netns exec $netns sysctl -q net.ipv4.conf.all.rp_filter=0 |
| ip netns exec $netns sysctl -q net.ipv4.conf.default.rp_filter=0 |
| done |
| |
| # ns1 ns2 |
| # ns1eth1 ns2eth1 |
| # ns1eth2 ns2eth2 |
| # ns1eth3 ns2eth3 |
| # ns1eth4 ns2eth4 |
| |
| for i in `seq 1 4`; do |
| ip link add ns1eth$i netns "$ns1" type veth peer name ns2eth$i netns "$ns2" |
| ip -net "$ns1" addr add 10.0.$i.1/24 dev ns1eth$i |
| ip -net "$ns1" addr add dead:beef:$i::1/64 dev ns1eth$i nodad |
| ip -net "$ns1" link set ns1eth$i up |
| |
| ip -net "$ns2" addr add 10.0.$i.2/24 dev ns2eth$i |
| ip -net "$ns2" addr add dead:beef:$i::2/64 dev ns2eth$i nodad |
| ip -net "$ns2" link set ns2eth$i up |
| |
| # let $ns2 reach any $ns1 address from any interface |
| ip -net "$ns2" route add default via 10.0.$i.1 dev ns2eth$i metric 10$i |
| done |
| } |
| |
| cleanup_partial() |
| { |
| rm -f "$capout" |
| |
| for netns in "$ns1" "$ns2"; do |
| ip netns del $netns |
| done |
| } |
| |
| cleanup() |
| { |
| rm -f "$cin" "$cout" |
| rm -f "$sin" "$sout" |
| cleanup_partial |
| } |
| |
| reset() |
| { |
| cleanup_partial |
| init |
| } |
| |
| reset_with_cookies() |
| { |
| reset |
| |
| for netns in "$ns1" "$ns2";do |
| ip netns exec $netns sysctl -q net.ipv4.tcp_syncookies=2 |
| done |
| } |
| |
| for arg in "$@"; do |
| if [ "$arg" = "-c" ]; then |
| capture=1 |
| fi |
| done |
| |
| ip -Version > /dev/null 2>&1 |
| if [ $? -ne 0 ];then |
| echo "SKIP: Could not run test without ip tool" |
| exit $ksft_skip |
| fi |
| |
| |
| check_transfer() |
| { |
| in=$1 |
| out=$2 |
| 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 |
| } |
| |
| do_ping() |
| { |
| listener_ns="$1" |
| connector_ns="$2" |
| connect_addr="$3" |
| |
| ip netns exec ${connector_ns} ping -q -c 1 $connect_addr >/dev/null |
| if [ $? -ne 0 ] ; then |
| echo "$listener_ns -> $connect_addr connectivity [ FAIL ]" 1>&2 |
| ret=1 |
| fi |
| } |
| |
| do_transfer() |
| { |
| listener_ns="$1" |
| connector_ns="$2" |
| cl_proto="$3" |
| srv_proto="$4" |
| connect_addr="$5" |
| |
| port=$((10000+$TEST_COUNT)) |
| TEST_COUNT=$((TEST_COUNT+1)) |
| |
| :> "$cout" |
| :> "$sout" |
| :> "$capout" |
| |
| if [ $capture -eq 1 ]; then |
| if [ -z $SUDO_USER ] ; then |
| capuser="" |
| else |
| capuser="-Z $SUDO_USER" |
| fi |
| |
| capfile=$(printf "mp_join-%02u-%s.pcap" "$TEST_COUNT" "${listener_ns}") |
| |
| echo "Capturing traffic for test $TEST_COUNT into $capfile" |
| ip netns exec ${listener_ns} tcpdump -i any -s 65535 -B 32768 $capuser -w $capfile > "$capout" 2>&1 & |
| cappid=$! |
| |
| sleep 1 |
| fi |
| |
| ip netns exec ${listener_ns} ./mptcp_connect -j -t $timeout -l -p $port -s ${srv_proto} 0.0.0.0 < "$sin" > "$sout" & |
| spid=$! |
| |
| sleep 1 |
| |
| ip netns exec ${connector_ns} ./mptcp_connect -j -t $timeout -p $port -s ${cl_proto} $connect_addr < "$cin" > "$cout" & |
| cpid=$! |
| |
| wait $cpid |
| retc=$? |
| wait $spid |
| rets=$? |
| |
| if [ $capture -eq 1 ]; then |
| sleep 1 |
| kill $cappid |
| fi |
| |
| if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then |
| echo " client exit code $retc, server $rets" 1>&2 |
| echo "\nnetns ${listener_ns} socket stat for $port:" 1>&2 |
| ip netns exec ${listener_ns} ss -nita 1>&2 -o "sport = :$port" |
| echo "\nnetns ${connector_ns} socket stat for $port:" 1>&2 |
| ip netns exec ${connector_ns} ss -nita 1>&2 -o "dport = :$port" |
| |
| cat "$capout" |
| return 1 |
| fi |
| |
| check_transfer $sin $cout "file received by client" |
| retc=$? |
| check_transfer $cin $sout "file received by server" |
| rets=$? |
| |
| if [ $retc -eq 0 ] && [ $rets -eq 0 ];then |
| cat "$capout" |
| return 0 |
| fi |
| |
| cat "$capout" |
| return 1 |
| } |
| |
| make_file() |
| { |
| name=$1 |
| who=$2 |
| |
| SIZE=1 |
| |
| dd if=/dev/urandom of="$name" bs=1024 count=$SIZE 2> /dev/null |
| echo -e "\nMPTCP_TEST_FILE_END_MARKER" >> "$name" |
| |
| echo "Created $name (size $SIZE KB) containing data sent by $who" |
| } |
| |
| run_tests() |
| { |
| listener_ns="$1" |
| connector_ns="$2" |
| connect_addr="$3" |
| lret=0 |
| |
| do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP ${connect_addr} |
| lret=$? |
| if [ $lret -ne 0 ]; then |
| ret=$lret |
| return |
| fi |
| } |
| |
| chk_join_nr() |
| { |
| local msg="$1" |
| local syn_nr=$2 |
| local syn_ack_nr=$3 |
| local ack_nr=$4 |
| local count |
| local dump_stats |
| |
| printf "%02u %-36s %s" "$TEST_COUNT" "$msg" "syn" |
| count=`ip netns exec $ns1 nstat -as | grep MPTcpExtMPJoinSynRx | awk '{print $2}'` |
| [ -z "$count" ] && count=0 |
| if [ "$count" != "$syn_nr" ]; then |
| echo "[fail] got $count JOIN[s] syn expected $syn_nr" |
| ret=1 |
| dump_stats=1 |
| else |
| echo -n "[ ok ]" |
| fi |
| |
| echo -n " - synack" |
| count=`ip netns exec $ns2 nstat -as | grep MPTcpExtMPJoinSynAckRx | awk '{print $2}'` |
| [ -z "$count" ] && count=0 |
| if [ "$count" != "$syn_ack_nr" ]; then |
| echo "[fail] got $count JOIN[s] synack expected $syn_ack_nr" |
| ret=1 |
| dump_stats=1 |
| else |
| echo -n "[ ok ]" |
| fi |
| |
| echo -n " - ack" |
| count=`ip netns exec $ns1 nstat -as | grep MPTcpExtMPJoinAckRx | awk '{print $2}'` |
| [ -z "$count" ] && count=0 |
| if [ "$count" != "$ack_nr" ]; then |
| echo "[fail] got $count JOIN[s] ack expected $ack_nr" |
| ret=1 |
| dump_stats=1 |
| else |
| echo "[ ok ]" |
| fi |
| if [ "${dump_stats}" = 1 ]; then |
| echo Server ns stats |
| ip netns exec $ns1 nstat -as | grep MPTcp |
| echo Client ns stats |
| ip netns exec $ns2 nstat -as | grep MPTcp |
| fi |
| } |
| |
| sin=$(mktemp) |
| sout=$(mktemp) |
| cin=$(mktemp) |
| cout=$(mktemp) |
| init |
| make_file "$cin" "client" |
| make_file "$sin" "server" |
| trap cleanup EXIT |
| |
| run_tests $ns1 $ns2 10.0.1.1 |
| chk_join_nr "no JOIN" "0" "0" "0" |
| |
| # subflow limted by client |
| reset |
| ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow |
| run_tests $ns1 $ns2 10.0.1.1 |
| chk_join_nr "single subflow, limited by client" 0 0 0 |
| |
| # subflow limted by server |
| reset |
| ip netns exec $ns2 ./pm_nl_ctl limits 0 1 |
| ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow |
| run_tests $ns1 $ns2 10.0.1.1 |
| chk_join_nr "single subflow, limited by server" 1 1 0 |
| |
| # subflow |
| reset |
| ip netns exec $ns1 ./pm_nl_ctl limits 0 1 |
| ip netns exec $ns2 ./pm_nl_ctl limits 0 1 |
| ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow |
| run_tests $ns1 $ns2 10.0.1.1 |
| chk_join_nr "single subflow" 1 1 1 |
| |
| # multiple subflows |
| reset |
| ip netns exec $ns1 ./pm_nl_ctl limits 0 2 |
| ip netns exec $ns2 ./pm_nl_ctl limits 0 2 |
| ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow |
| ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow |
| run_tests $ns1 $ns2 10.0.1.1 |
| chk_join_nr "multiple subflows" 2 2 2 |
| |
| # multiple subflows limited by serverf |
| reset |
| ip netns exec $ns1 ./pm_nl_ctl limits 0 1 |
| ip netns exec $ns2 ./pm_nl_ctl limits 0 2 |
| ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow |
| ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow |
| run_tests $ns1 $ns2 10.0.1.1 |
| chk_join_nr "multiple subflows, limited by server" 2 2 1 |
| |
| # add_address, unused |
| reset |
| ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal |
| run_tests $ns1 $ns2 10.0.1.1 |
| chk_join_nr "unused signal address" 0 0 0 |
| |
| # accept and use add_addr |
| reset |
| ip netns exec $ns1 ./pm_nl_ctl limits 0 1 |
| ip netns exec $ns2 ./pm_nl_ctl limits 1 1 |
| ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal |
| run_tests $ns1 $ns2 10.0.1.1 |
| chk_join_nr "signal address" 1 1 1 |
| |
| # accept and use add_addr with an additional subflow |
| # note: signal address in server ns and local addresses in client ns must |
| # belong to different subnets or one of the listed local address could be |
| # used for 'add_addr' subflow |
| reset |
| ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal |
| ip netns exec $ns1 ./pm_nl_ctl limits 0 2 |
| ip netns exec $ns2 ./pm_nl_ctl limits 1 2 |
| ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow |
| run_tests $ns1 $ns2 10.0.1.1 |
| chk_join_nr "subflow and signal" 2 2 2 |
| |
| # accept and use add_addr with additional subflows |
| reset |
| ip netns exec $ns1 ./pm_nl_ctl limits 0 3 |
| ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal |
| ip netns exec $ns2 ./pm_nl_ctl limits 1 3 |
| ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow |
| ip netns exec $ns2 ./pm_nl_ctl add 10.0.4.2 flags subflow |
| run_tests $ns1 $ns2 10.0.1.1 |
| chk_join_nr "multiple subflows and signal" 3 3 3 |
| |
| # single subflow, syncookies |
| reset_with_cookies |
| ip netns exec $ns1 ./pm_nl_ctl limits 0 1 |
| ip netns exec $ns2 ./pm_nl_ctl limits 0 1 |
| ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow |
| run_tests $ns1 $ns2 10.0.1.1 |
| chk_join_nr "single subflow with syn cookies" 1 1 1 |
| |
| # multiple subflows with syn cookies |
| reset_with_cookies |
| ip netns exec $ns1 ./pm_nl_ctl limits 0 2 |
| ip netns exec $ns2 ./pm_nl_ctl limits 0 2 |
| ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow |
| ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow |
| run_tests $ns1 $ns2 10.0.1.1 |
| chk_join_nr "multiple subflows with syn cookies" 2 2 2 |
| |
| # multiple subflows limited by server |
| reset_with_cookies |
| ip netns exec $ns1 ./pm_nl_ctl limits 0 1 |
| ip netns exec $ns2 ./pm_nl_ctl limits 0 2 |
| ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow |
| ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow |
| run_tests $ns1 $ns2 10.0.1.1 |
| chk_join_nr "subflows limited by server w cookies" 2 2 1 |
| |
| # test signal address with cookies |
| reset_with_cookies |
| ip netns exec $ns1 ./pm_nl_ctl limits 0 1 |
| ip netns exec $ns2 ./pm_nl_ctl limits 1 1 |
| ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal |
| run_tests $ns1 $ns2 10.0.1.1 |
| chk_join_nr "signal address with syn cookies" 1 1 1 |
| |
| # test cookie with subflow and signal |
| reset_with_cookies |
| ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal |
| ip netns exec $ns1 ./pm_nl_ctl limits 0 2 |
| ip netns exec $ns2 ./pm_nl_ctl limits 1 2 |
| ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow |
| run_tests $ns1 $ns2 10.0.1.1 |
| chk_join_nr "subflow and signal w cookies" 2 2 2 |
| |
| # accept and use add_addr with additional subflows |
| reset_with_cookies |
| ip netns exec $ns1 ./pm_nl_ctl limits 0 3 |
| ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal |
| ip netns exec $ns2 ./pm_nl_ctl limits 1 3 |
| ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow |
| ip netns exec $ns2 ./pm_nl_ctl add 10.0.4.2 flags subflow |
| run_tests $ns1 $ns2 10.0.1.1 |
| chk_join_nr "subflows and signal w. cookies" 3 3 3 |
| |
| exit $ret |
