From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B7D7D79C0 for ; Wed, 30 Nov 2022 18:45:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 390F5C433D6; Wed, 30 Nov 2022 18:45:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1669833946; bh=0K3AIHkB8kD0VAftsr2Eqscp76tLjsXPVX16DhrCo6Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Lz7s0cJddeTyDjJlbQW15TqUXQFJoC0NU3z42SEv2irscGPg72yl/uM1AMXWoZTId O6DinZiDAfzrA3o5BQ6G+XbXYrxjCS9CYI/MWp3LCnTFpajWumqtP0lshF5oIm+EhO AWEQ1UxAcsnfw9vixppK3ClXvLN3i+m9H/7N/bwc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Mat Martineau , Matthieu Baerts , Jakub Kicinski , Sasha Levin Subject: [PATCH 6.0 072/289] selftests: mptcp: run mptcp_sockopt from a new netns Date: Wed, 30 Nov 2022 19:20:57 +0100 Message-Id: <20221130180545.773342978@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221130180544.105550592@linuxfoundation.org> References: <20221130180544.105550592@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Matthieu Baerts [ Upstream commit 7e68d31020f18f8d695d5f143fc16cdaa96166cb ] Not running it from a new netns causes issues if some MPTCP settings are modified, e.g. if MPTCP is disabled from the sysctl knob, if multiple addresses are available and added to the MPTCP path-manager, etc. In these cases, the created connection will not behave as expected, e.g. unable to create an MPTCP socket, more than one subflow is seen, etc. A new "sandbox" net namespace is now created and used to run mptcp_sockopt from this controlled environment. Fixes: ce9979129a0b ("selftests: mptcp: add mptcp getsockopt test cases") Reviewed-by: Mat Martineau Signed-off-by: Matthieu Baerts Signed-off-by: Mat Martineau Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- tools/testing/selftests/net/mptcp/mptcp_sockopt.sh | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh index 0879da915014..80d36f7cfee8 100755 --- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh @@ -35,8 +35,9 @@ init() ns1="ns1-$rndh" ns2="ns2-$rndh" + ns_sbox="ns_sbox-$rndh" - for netns in "$ns1" "$ns2";do + for netns in "$ns1" "$ns2" "$ns_sbox";do ip netns add $netns || exit $ksft_skip ip -net $netns link set lo up ip netns exec $netns sysctl -q net.mptcp.enabled=1 @@ -73,7 +74,7 @@ init() cleanup() { - for netns in "$ns1" "$ns2"; do + for netns in "$ns1" "$ns2" "$ns_sbox"; do ip netns del $netns done rm -f "$cin" "$cout" @@ -243,7 +244,7 @@ do_mptcp_sockopt_tests() { local lret=0 - ./mptcp_sockopt + ip netns exec "$ns_sbox" ./mptcp_sockopt lret=$? if [ $lret -ne 0 ]; then @@ -252,7 +253,7 @@ do_mptcp_sockopt_tests() return fi - ./mptcp_sockopt -6 + ip netns exec "$ns_sbox" ./mptcp_sockopt -6 lret=$? if [ $lret -ne 0 ]; then -- 2.35.1