[v3] selftests: mptcp: skip tests when features are not supported

[PATCH mptcp-net v3 11/32] selftests: mptcp: sockopt: skip getsockopt checks if not supported

Matthieu Baerts posted 32 patches 2 years, 8 months ago

Diff against v1 v2
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Maintainers: Matthieu Baerts <matthieu.baerts@tessares.net>, Mat Martineau <martineau@kernel.org>, "David S. Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, Shuah Khan <shuah@kernel.org>, Davide Caratti <dcaratti@redhat.com>, Christoph Paasch <cpaasch@apple.com>, Florian Westphal <fw@strlen.de>, Dmytro Shytyi <dmytro@shytyi.net>, Menglong Dong <imagedong@tencent.com>, Geliang Tang <geliang.tang@suse.com>, Kishen Maloor <kishen.maloor@intel.com>

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[PATCH mptcp-net v3 11/32] selftests: mptcp: sockopt: skip getsockopt checks if not supported

Posted by Matthieu Baerts 2 years, 8 months ago

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 55c42fa7fa33 ("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: ce9979129a0b ("selftests: mptcp: add mptcp getsockopt test cases")
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
---
 tools/testing/selftests/net/mptcp/mptcp_sockopt.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
index ff5adbb9c7f2..1d4ae8792227 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
@@ -87,6 +87,7 @@ cleanup()
 }
 
 mptcp_lib_check_mptcp
+mptcp_lib_check_kallsyms
 
 ip -Version > /dev/null 2>&1
 if [ $? -ne 0 ];then
@@ -253,6 +254,11 @@ 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=$?
 

-- 
2.39.2