diff options
Diffstat (limited to '')
| -rwxr-xr-x | tools/testing/selftests/net/mptcp/diag.sh | 305 |
1 files changed, 246 insertions, 59 deletions
diff --git a/tools/testing/selftests/net/mptcp/diag.sh b/tools/testing/selftests/net/mptcp/diag.sh index 39edce4f541c..bc97ab33a00e 100755 --- a/tools/testing/selftests/net/mptcp/diag.sh +++ b/tools/testing/selftests/net/mptcp/diag.sh @@ -1,12 +1,17 @@ #!/bin/bash # SPDX-License-Identifier: GPL-2.0 -rndh=$(printf %x $sec)-$(mktemp -u XXXXXX) -ns="ns1-$rndh" -ksft_skip=4 -test_cnt=1 +# Double quotes to prevent globbing and word splitting is recommended in new +# code but we accept it, especially because there were too many before having +# address all other issues detected by shellcheck. +#shellcheck disable=SC2086 + +. "$(dirname "${0}")/mptcp_lib.sh" + +ns="" +timeout_poll=30 +timeout_test=$((timeout_poll * 2 + 1)) ret=0 -pids=() flush_pids() { @@ -14,108 +19,290 @@ flush_pids() # give it some time sleep 1.1 - for pid in ${pids[@]}; do - [ -d /proc/$pid ] && kill -SIGUSR1 $pid >/dev/null 2>&1 + ip netns pids "${ns}" | xargs --no-run-if-empty kill -SIGUSR1 &>/dev/null + + for _ in $(seq $((timeout_poll * 10))); do + [ -z "$(ip netns pids "${ns}")" ] && break + sleep 0.1 done - pids=() } +# This function is used in the cleanup trap +#shellcheck disable=SC2317 cleanup() { - ip netns del $ns - for pid in ${pids[@]}; do - [ -d /proc/$pid ] && kill -9 $pid >/dev/null 2>&1 - done + ip netns pids "${ns}" | xargs --no-run-if-empty kill -SIGKILL &>/dev/null + + mptcp_lib_ns_exit "${ns}" } -ip -Version > /dev/null 2>&1 -if [ $? -ne 0 ];then - echo "SKIP: Could not run test without ip tool" - exit $ksft_skip -fi -ss -h | grep -q MPTCP -if [ $? -ne 0 ];then - echo "SKIP: ss tool does not support MPTCP" - exit $ksft_skip -fi +mptcp_lib_check_mptcp +mptcp_lib_check_tools ip ss + +get_msk_inuse() +{ + ip netns exec $ns cat /proc/net/protocols | awk '$1~/^MPTCP$/{print $3}' +} __chk_nr() { - local condition="$1" + local command="$1" local expected=$2 - local msg nr + local msg="$3" + local skip="${4-SKIP}" + local nr - shift 2 - msg=$* - nr=$(ss -inmHMN $ns | $condition) + nr=$(eval $command) - printf "%-50s" "$msg" - if [ $nr != $expected ]; then - echo "[ fail ] expected $expected found $nr" - ret=$test_cnt + mptcp_lib_print_title "$msg" + if [ "$nr" != "$expected" ]; then + if [ "$nr" = "$skip" ] && ! mptcp_lib_expect_all_features; then + mptcp_lib_pr_skip "Feature probably not supported" + mptcp_lib_result_skip "${msg}" + else + mptcp_lib_pr_fail "expected $expected found $nr" + mptcp_lib_result_fail "${msg}" + ret=${KSFT_FAIL} + fi else - echo "[ ok ]" + mptcp_lib_pr_ok + mptcp_lib_result_pass "${msg}" fi - test_cnt=$((test_cnt+1)) +} + +__chk_msk_nr() +{ + local condition=$1 + shift 1 + + __chk_nr "ss -inmHMN $ns | $condition" "$@" } chk_msk_nr() { - __chk_nr "grep -c token:" $* + __chk_msk_nr "grep -c token:" "$@" +} + +chk_listener_nr() +{ + local expected=$1 + local msg="$2" + + __chk_nr "ss -nlHMON $ns | wc -l" "$expected" "$msg - mptcp" 0 + __chk_nr "ss -nlHtON $ns | wc -l" "$expected" "$msg - subflows" +} + +wait_msk_nr() +{ + local condition="grep -c token:" + local expected=$1 + local timeout=20 + local msg nr + local max=0 + local i=0 + + shift 1 + msg=$* + + while [ $i -lt $timeout ]; do + nr=$(ss -inmHMN $ns | $condition) + [ $nr == $expected ] && break; + [ $nr -gt $max ] && max=$nr + i=$((i + 1)) + sleep 1 + done + + mptcp_lib_print_title "$msg" + if [ $i -ge $timeout ]; then + mptcp_lib_pr_fail "timeout while expecting $expected max $max last $nr" + mptcp_lib_result_fail "${msg} # timeout" + ret=${KSFT_FAIL} + elif [ $nr != $expected ]; then + mptcp_lib_pr_fail "expected $expected found $nr" + mptcp_lib_result_fail "${msg} # unexpected result" + ret=${KSFT_FAIL} + else + mptcp_lib_pr_ok + mptcp_lib_result_pass "${msg}" + fi } chk_msk_fallback_nr() { - __chk_nr "grep -c fallback" $* + __chk_msk_nr "grep -c fallback" "$@" } chk_msk_remote_key_nr() { - __chk_nr "grep -c remote_key" $* + __chk_msk_nr "grep -c remote_key" "$@" +} + +__chk_listen() +{ + local filter="$1" + local expected=$2 + local msg="$3" + + __chk_nr "ss -N $ns -Ml '$filter' | grep -c LISTEN" "$expected" "$msg" 0 +} + +chk_msk_listen() +{ + lport=$1 + + # destination port search should always return empty list + __chk_listen "dport $lport" 0 "listen match for dport $lport" + + # should return 'our' mptcp listen socket + __chk_listen "sport $lport" 1 "listen match for sport $lport" + + __chk_listen "src inet:0.0.0.0:$lport" 1 "listen match for saddr and sport" + + __chk_listen "" 1 "all listen sockets" + + nr=$(ss -Ml $filter | wc -l) +} + +chk_msk_inuse() +{ + local expected=$1 + local msg="....chk ${2:-${expected}} msk in use" + local listen_nr + + if [ "${expected}" -eq 0 ]; then + msg+=" after flush" + fi + + listen_nr=$(ss -N "${ns}" -Ml | grep -c LISTEN) + expected=$((expected + listen_nr)) + + for _ in $(seq 10); do + if [ "$(get_msk_inuse)" -eq $expected ]; then + break + fi + sleep 0.1 + done + + __chk_nr get_msk_inuse $expected "${msg}" 0 } +# $1: cestab nr +chk_msk_cestab() +{ + local expected=$1 + local msg="....chk ${2:-${expected}} cestab" + + if [ "${expected}" -eq 0 ]; then + msg+=" after flush" + fi + + __chk_nr "mptcp_lib_get_counter ${ns} MPTcpExtMPCurrEstab" \ + "${expected}" "${msg}" "" +} + +wait_connected() +{ + local listener_ns="${1}" + local port="${2}" + + local port_hex i + + port_hex="$(printf "%04X" "${port}")" + for i in $(seq 10); do + ip netns exec ${listener_ns} grep -q " 0100007F:${port_hex} " /proc/net/tcp && break + sleep 0.1 + done +} trap cleanup EXIT -ip netns add $ns -ip -n $ns link set dev lo up +mptcp_lib_ns_init ns -echo "a" | ip netns exec $ns ./mptcp_connect -p 10000 -l 0.0.0.0 -t 100 >/dev/null & -sleep 0.1 -pids[0]=$! +echo "a" | \ + timeout ${timeout_test} \ + ip netns exec $ns \ + ./mptcp_connect -p 10000 -l -t ${timeout_poll} -w 20 \ + 0.0.0.0 >/dev/null & +mptcp_lib_wait_local_port_listen $ns 10000 chk_msk_nr 0 "no msk on netns creation" +chk_msk_listen 10000 -echo "b" | ip netns exec $ns ./mptcp_connect -p 10000 127.0.0.1 -j -t 100 >/dev/null & -sleep 0.1 -pids[1]=$! +echo "b" | \ + timeout ${timeout_test} \ + ip netns exec $ns \ + ./mptcp_connect -p 10000 -r 0 -t ${timeout_poll} -w 20 \ + 127.0.0.1 >/dev/null & +wait_connected $ns 10000 chk_msk_nr 2 "after MPC handshake " chk_msk_remote_key_nr 2 "....chk remote_key" chk_msk_fallback_nr 0 "....chk no fallback" +chk_msk_inuse 2 +chk_msk_cestab 2 flush_pids +chk_msk_inuse 0 "2->0" +chk_msk_cestab 0 "2->0" -echo "a" | ip netns exec $ns ./mptcp_connect -p 10001 -s TCP -l 0.0.0.0 -t 100 >/dev/null & -pids[0]=$! -sleep 0.1 -echo "b" | ip netns exec $ns ./mptcp_connect -p 10001 127.0.0.1 -j -t 100 >/dev/null & -pids[1]=$! -sleep 0.1 +echo "a" | \ + timeout ${timeout_test} \ + ip netns exec $ns \ + ./mptcp_connect -p 10001 -l -s TCP -t ${timeout_poll} -w 20 \ + 0.0.0.0 >/dev/null & +mptcp_lib_wait_local_port_listen $ns 10001 +echo "b" | \ + timeout ${timeout_test} \ + ip netns exec $ns \ + ./mptcp_connect -p 10001 -r 0 -t ${timeout_poll} -w 20 \ + 127.0.0.1 >/dev/null & +wait_connected $ns 10001 chk_msk_fallback_nr 1 "check fallback" +chk_msk_inuse 1 +chk_msk_cestab 1 flush_pids +chk_msk_inuse 0 "1->0" +chk_msk_cestab 0 "1->0" + NR_CLIENTS=100 -for I in `seq 1 $NR_CLIENTS`; do - echo "a" | ip netns exec $ns ./mptcp_connect -p $((I+10001)) -l 0.0.0.0 -t 100 -w 10 >/dev/null & - pids[$((I*2))]=$! +for I in $(seq 1 $NR_CLIENTS); do + echo "a" | \ + timeout ${timeout_test} \ + ip netns exec $ns \ + ./mptcp_connect -p $((I+10001)) -l -w 20 \ + -t ${timeout_poll} 0.0.0.0 >/dev/null & +done +mptcp_lib_wait_local_port_listen $ns $((NR_CLIENTS + 10001)) + +for I in $(seq 1 $NR_CLIENTS); do + echo "b" | \ + timeout ${timeout_test} \ + ip netns exec $ns \ + ./mptcp_connect -p $((I+10001)) -w 20 \ + -t ${timeout_poll} 127.0.0.1 >/dev/null & done -sleep 0.1 -for I in `seq 1 $NR_CLIENTS`; do - echo "b" | ip netns exec $ns ./mptcp_connect -p $((I+10001)) 127.0.0.1 -t 100 -w 10 >/dev/null & - pids[$((I*2 + 1))]=$! +wait_msk_nr $((NR_CLIENTS*2)) "many msk socket present" +chk_msk_inuse $((NR_CLIENTS*2)) "many" +chk_msk_cestab $((NR_CLIENTS*2)) "many" +flush_pids + +chk_msk_inuse 0 "many->0" +chk_msk_cestab 0 "many->0" + +chk_listener_nr 0 "no listener sockets" +NR_SERVERS=100 +for I in $(seq 1 $NR_SERVERS); do + ip netns exec $ns ./mptcp_connect -p $((I + 20001)) \ + -t ${timeout_poll} -l 0.0.0.0 >/dev/null 2>&1 & done -sleep 1.5 +mptcp_lib_wait_local_port_listen $ns $((NR_SERVERS + 20001)) -chk_msk_nr $((NR_CLIENTS*2)) "many msk socket present" +chk_listener_nr $NR_SERVERS "many listener sockets" + +# graceful termination +for I in $(seq 1 $NR_SERVERS); do + echo a | ip netns exec $ns ./mptcp_connect -p $((I + 20001)) 127.0.0.1 >/dev/null 2>&1 & +done flush_pids +mptcp_lib_result_print_all_tap exit $ret |