selftests: mptcp: sockopt: skip getsockopt checks if not supported

commit c6f7eccc51 upstream.

Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.

One of them is the getsockopt(SOL_MPTCP) to get info about the MPTCP
connections introduced by commit 55c42fa7fa ("mptcp: add MPTCP_INFO
getsockopt") and the following ones.

It is possible to look for "mptcp_diag_fill_info" in kallsyms because
it is introduced by the mentioned feature. So we can know in advance if
the feature is supported and skip the sub-test if not.

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: ce9979129a ("selftests: mptcp: add mptcp getsockopt test cases")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Matthieu Baerts 2023-06-08 18:38:52 +02:00 committed by Greg Kroah-Hartman
parent 103b4e62de
commit bfe225dec6

View file

@ -84,6 +84,7 @@ cleanup()
}
mptcp_lib_check_mptcp
mptcp_lib_check_kallsyms
ip -Version > /dev/null 2>&1
if [ $? -ne 0 ];then
@ -248,6 +249,11 @@ do_mptcp_sockopt_tests()
{
local lret=0
if ! mptcp_lib_kallsyms_has "mptcp_diag_fill_info$"; then
echo "INFO: MPTCP sockopt not supported: SKIP"
return
fi
ip netns exec "$ns_sbox" ./mptcp_sockopt
lret=$?