netdev - [PATCH net 5/5] selftests: mptcp: fix fastclose with csum failure

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Date: Tue, 14 Nov 2023 00:16:17 +0100
From: Matthieu Baerts <matttbe@...nel.org>
To: mptcp@...ts.linux.dev, Mat Martineau <martineau@...nel.org>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Alexander Duyck <alexanderduyck@...com>, 
 Geliang Tang <geliang.tang@...e.com>, 
 Poorva Sonparote <psonparo@...hat.com>, Shuah Khan <shuah@...nel.org>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-kselftest@...r.kernel.org, Matthieu Baerts <matttbe@...nel.org>, 
 Xiumei Mu <xmu@...hat.com>, stable@...r.kernel.org
Subject: [PATCH net 5/5] selftests: mptcp: fix fastclose with csum failure

From: Paolo Abeni <pabeni@...hat.com>

Running the mp_join selftest manually with the following command line:

  ./mptcp_join.sh -z -C

leads to some failures:

  002 fastclose server test
  # ...
  rtx                                 [fail] got 1 MP_RST[s] TX expected 0
  # ...
  rstrx                               [fail] got 1 MP_RST[s] RX expected 0

The problem is really in the wrong expectations for the RST checks
implied by the csum validation. Note that the same check is repeated
explicitly in the same test-case, with the correct expectation and
pass successfully.

Address the issue explicitly setting the correct expectation for
the failing checks.

Reported-by: Xiumei Mu <xmu@...hat.com>
Fixes: 6bf41020b72b ("selftests: mptcp: update and extend fastclose test-cases")
Cc: stable@...r.kernel.org
Signed-off-by: Paolo Abeni <pabeni@...hat.com>
Reviewed-by: Matthieu Baerts <matttbe@...nel.org>
Signed-off-by: Matthieu Baerts <matttbe@...nel.org>
---
 tools/testing/selftests/net/mptcp/mptcp_join.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 75a2438efdf3..3c94f2f194d6 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -3240,7 +3240,7 @@ fastclose_tests()
 	if reset_check_counter "fastclose server test" "MPTcpExtMPFastcloseRx"; then
 		test_linkfail=1024 fastclose=server \
 			run_tests $ns1 $ns2 10.0.1.1
-		chk_join_nr 0 0 0
+		chk_join_nr 0 0 0 0 0 0 1
 		chk_fclose_nr 1 1 invert
 		chk_rst_nr 1 1
 	fi

-- 
2.40.1