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: /lib/modules/5.11.0-1022-aws/build/tools/testing/selftests/net/mptcp/ [ drwxr-xr-x ]
name : diag.sh #!/bin/bash # SPDX-License-Identifier: GPL-2.0 rndh=$(printf %x $sec)-$(mktemp -u XXXXXX) ns="ns1-$rndh" ksft_skip=4 test_cnt=1 timeout_poll=100 timeout_test=$((timeout_poll * 2 + 1)) ret=0 flush_pids() { # mptcp_connect in join mode will sleep a bit before completing, # give it some time sleep 1.1 ip netns pids "${ns}" | xargs --no-run-if-empty kill -SIGUSR1 &>/dev/null } cleanup() { ip netns pids "${ns}" | xargs --no-run-if-empty kill -SIGKILL &>/dev/null ip netns del $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 __chk_nr() { local condition="$1" local expected=$2 local msg nr shift 2 msg=$* nr=$(ss -inmHMN $ns | $condition) printf "%-50s" "$msg" if [ $nr != $expected ]; then echo "[ fail ] expected $expected found $nr" ret=$test_cnt else echo "[ ok ]" fi test_cnt=$((test_cnt+1)) } chk_msk_nr() { __chk_nr "grep -c token:" $* } chk_msk_fallback_nr() { __chk_nr "grep -c fallback" $* } chk_msk_remote_key_nr() { __chk_nr "grep -c remote_key" $* } trap cleanup EXIT ip netns add $ns ip -n $ns link set dev lo up echo "a" | \ timeout ${timeout_test} \ ip netns exec $ns \ ./mptcp_connect -p 10000 -l -t ${timeout_poll} \ 0.0.0.0 >/dev/null & sleep 0.1 chk_msk_nr 0 "no msk on netns creation" echo "b" | \ timeout ${timeout_test} \ ip netns exec $ns \ ./mptcp_connect -p 10000 -j -t ${timeout_poll} \ 127.0.0.1 >/dev/null & sleep 0.1 chk_msk_nr 2 "after MPC handshake " chk_msk_remote_key_nr 2 "....chk remote_key" chk_msk_fallback_nr 0 "....chk no fallback" flush_pids echo "a" | \ timeout ${timeout_test} \ ip netns exec $ns \ ./mptcp_connect -p 10001 -l -s TCP -t ${timeout_poll} \ 0.0.0.0 >/dev/null & sleep 0.1 echo "b" | \ timeout ${timeout_test} \ ip netns exec $ns \ ./mptcp_connect -p 10001 -j -t ${timeout_poll} \ 127.0.0.1 >/dev/null & sleep 0.1 chk_msk_fallback_nr 1 "check fallback" flush_pids NR_CLIENTS=100 for I in `seq 1 $NR_CLIENTS`; do echo "a" | \ timeout ${timeout_test} \ ip netns exec $ns \ ./mptcp_connect -p $((I+10001)) -l -w 10 \ -t ${timeout_poll} 0.0.0.0 >/dev/null & done sleep 0.1 for I in `seq 1 $NR_CLIENTS`; do echo "b" | \ timeout ${timeout_test} \ ip netns exec $ns \ ./mptcp_connect -p $((I+10001)) -w 10 \ -t ${timeout_poll} 127.0.0.1 >/dev/null & done sleep 1.5 chk_msk_nr $((NR_CLIENTS*2)) "many msk socket present" flush_pids exit $ret