selftests: mptcp: join: add ss mptcp support check

commit 9480f388a2 upstream.

Commands 'ss -M' are used in script mptcp_join.sh to display only MPTCP
sockets. So it must be checked if ss tool supports MPTCP in this script.

Fixes: e274f71540 ("selftests: mptcp: add subflow limits test-cases")
Cc: stable@vger.kernel.org
Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240223-upstream-net-20240223-misc-fixes-v1-7-162e87e48497@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Geliang Tang 2024-02-23 17:14:17 +01:00 committed by Greg Kroah-Hartman
parent 84a3c10a0c
commit 03ad085eb1

View file

@ -144,6 +144,11 @@ check_tools()
exit $ksft_skip
fi
if ! ss -h | grep -q MPTCP; then
echo "SKIP: ss tool does not support MPTCP"
exit $ksft_skip
fi
# Use the legacy version if available to support old kernel versions
if iptables-legacy -V &> /dev/null; then
iptables="iptables-legacy"