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selftests/mptcp: add diag interface tests
basic functional test, triggering the msk diag interface code. Require appropriate iproute2 support, skip elsewhere. Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| #!/bin/bash | ||
| # SPDX-License-Identifier: GPL-2.0 | ||
|
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||
| rndh=$(printf %x $sec)-$(mktemp -u XXXXXX) | ||
| ns="ns1-$rndh" | ||
| ksft_skip=4 | ||
| test_cnt=1 | ||
| ret=0 | ||
| pids=() | ||
|
|
||
| flush_pids() | ||
| { | ||
| # mptcp_connect in join mode will sleep a bit before completing, | ||
| # give it some time | ||
| sleep 1.1 | ||
|
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| for pid in ${pids[@]}; do | ||
| [ -d /proc/$pid ] && kill -SIGUSR1 $pid >/dev/null 2>&1 | ||
| done | ||
| pids=() | ||
| } | ||
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| cleanup() | ||
| { | ||
| ip netns del $ns | ||
| for pid in ${pids[@]}; do | ||
| [ -d /proc/$pid ] && kill -9 $pid >/dev/null 2>&1 | ||
| done | ||
| } | ||
|
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| 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 | ||
|
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| __chk_nr() | ||
| { | ||
| local condition="$1" | ||
| local expected=$2 | ||
| local msg nr | ||
|
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||
| shift 2 | ||
| msg=$* | ||
| nr=$(ss -inmHMN $ns | $condition) | ||
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| printf "%-50s" "$msg" | ||
| if [ $nr != $expected ]; then | ||
| echo "[ fail ] expected $expected found $nr" | ||
| ret=$test_cnt | ||
| else | ||
| echo "[ ok ]" | ||
| fi | ||
| test_cnt=$((test_cnt+1)) | ||
| } | ||
|
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||
| chk_msk_nr() | ||
| { | ||
| __chk_nr "grep -c token:" $* | ||
| } | ||
|
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| chk_msk_fallback_nr() | ||
| { | ||
| __chk_nr "grep -c fallback" $* | ||
| } | ||
|
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||
| chk_msk_remote_key_nr() | ||
| { | ||
| __chk_nr "grep -c remote_key" $* | ||
| } | ||
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| trap cleanup EXIT | ||
| ip netns add $ns | ||
| ip -n $ns link set dev lo up | ||
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| echo "a" | ip netns exec $ns ./mptcp_connect -p 10000 -l 0.0.0.0 -t 100 >/dev/null & | ||
| sleep 0.1 | ||
| pids[0]=$! | ||
| chk_msk_nr 0 "no msk on netns creation" | ||
|
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| echo "b" | ip netns exec $ns ./mptcp_connect -p 10000 127.0.0.1 -j -t 100 >/dev/null & | ||
| sleep 0.1 | ||
| pids[1]=$! | ||
| 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 | ||
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| 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 | ||
| chk_msk_fallback_nr 1 "check fallback" | ||
| flush_pids | ||
|
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||
| 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))]=$! | ||
| done | ||
| sleep 0.1 | ||
|
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||
| 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))]=$! | ||
| done | ||
| sleep 1.5 | ||
|
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| chk_msk_nr $((NR_CLIENTS*2)) "many msk socket present" | ||
| flush_pids | ||
|
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| exit $ret |
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