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selftests/mptcp: add diag listen tests

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Check dumping of mptcp listener sockets:
1. filter by dport should not return any results
2. filter by sport should return listen sk
3. filter by saddr+sport should return listen sk
4. no filter should return listen sk

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Westphal 2022-04-08 12:46:01 -07:00 committed by David S. Miller
parent 4fa39b701c
commit f2ae0fa68e
1 changed files with 38 additions and 0 deletions
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38
tools/testing/selftests/net/mptcp/diag.sh
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@ -71,6 +71,43 @@ chk_msk_remote_key_nr()
__chk_nr "grep -c remote_key" $*
}
__chk_listen()
{
local filter="$1"
local expected=$2
shift 2
msg=$*
nr=$(ss -N $ns -Ml "$filter" | grep -c LISTEN)
printf "%-50s" "$msg"
if [ $nr != $expected ]; then
echo "[ fail ] expected $expected found $nr"
ret=$test_cnt
else
echo "[ ok ]"
fi
}
chk_msk_listen()
{
lport=$1
local msg="check for listen socket"
# 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)
}
# $1: ns, $2: port
wait_local_port_listen()
{
@ -113,6 +150,7 @@ echo "a" | \
0.0.0.0 >/dev/null &
wait_local_port_listen $ns 10000
chk_msk_nr 0 "no msk on netns creation"
chk_msk_listen 10000
echo "b" | \
timeout ${timeout_test} \