linux-kernel - [PATCH 5.13 035/223] selftests: mptcp: fix case multiple subflows limited by server

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Message-Id: <20210726153847.404152295@linuxfoundation.org>
Date:   Mon, 26 Jul 2021 17:37:07 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, kernel test robot <oliver.sang@...el.com>,
        Jianguo Wu <wujianguo@...natelecom.cn>,
        Mat Martineau <mathew.j.martineau@...ux.intel.com>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.13 035/223] selftests: mptcp: fix case multiple subflows limited by server

From: Jianguo Wu <wujianguo@...natelecom.cn>

[ Upstream commit a7da441621c7945fbfd43ed239c93b8073cda502 ]

After patch "mptcp: fix syncookie process if mptcp can not_accept new
subflow", if subflow is limited, MP_JOIN SYN is dropped, and no SYN/ACK
will be replied.

So in case "multiple subflows limited by server", the expected SYN/ACK
number should be 1.

Fixes: 00587187ad30 ("selftests: mptcp: add test cases for mptcp join tests with syn cookies")
Reported-by: kernel test robot <oliver.sang@...el.com>
Signed-off-by: Jianguo Wu <wujianguo@...natelecom.cn>
Signed-off-by: Mat Martineau <mathew.j.martineau@...ux.intel.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...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 fd99485cf2a4..e8ac852c6ff6 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -1341,7 +1341,7 @@ syncookies_tests()
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
-	chk_join_nr "subflows limited by server w cookies" 2 2 1
+	chk_join_nr "subflows limited by server w cookies" 2 1 1
 
 	# test signal address with cookies
 	reset_with_cookies
-- 
2.30.2