From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-24.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D394BC48BE5 for ; Mon, 21 Jun 2021 16:39:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B792360698 for ; Mon, 21 Jun 2021 16:39:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232957AbhFUQls (ORCPT ); Mon, 21 Jun 2021 12:41:48 -0400 Received: from mail.kernel.org ([198.145.29.99]:33418 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232371AbhFUQiX (ORCPT ); Mon, 21 Jun 2021 12:38:23 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 66B9C61430; Mon, 21 Jun 2021 16:29:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1624292957; bh=p396UMBMFopLBPc7tMA9Yexa34rdKj+9WkkBE+0sWzs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uMQlLvwCPAxYlMQtxjNDv0/7xOettKgBQsexWYgytbdzx9ShSQNc427eySp7mLwtE 5JvYc0R+3InP6hjnK1vPHZ1LXBTaSihJ7669LUoInaHcFR9sB6YWhuokhzyc+uG9cJ 7zW6T0+adVmIeLbIV+/MHSODu9kBabvZgYo/qxCQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Paolo Abeni , Mat Martineau , "David S. Miller" , Sasha Levin Subject: [PATCH 5.12 047/178] selftests: mptcp: enable syncookie only in absence of reorders Date: Mon, 21 Jun 2021 18:14:21 +0200 Message-Id: <20210621154923.914958133@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210621154921.212599475@linuxfoundation.org> References: <20210621154921.212599475@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Paolo Abeni [ Upstream commit 2395da0e17935ce9158cdfae433962bdb6cbfa67 ] Syncookie validation may fail for OoO packets, causing spurious resets and self-tests failures, so let's force syncookie only for tests iteration with no OoO. Fixes: fed61c4b584c ("selftests: mptcp: make 2nd net namespace use tcp syn cookies unconditionally") Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/198 Signed-off-by: Paolo Abeni Signed-off-by: Mat Martineau Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- tools/testing/selftests/net/mptcp/mptcp_connect.sh | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.sh b/tools/testing/selftests/net/mptcp/mptcp_connect.sh index 65b3b983efc2..8763706b0d04 100755 --- a/tools/testing/selftests/net/mptcp/mptcp_connect.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_connect.sh @@ -197,9 +197,6 @@ ip -net "$ns4" link set ns4eth3 up ip -net "$ns4" route add default via 10.0.3.2 ip -net "$ns4" route add default via dead:beef:3::2 -# use TCP syn cookies, even if no flooding was detected. -ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=2 - set_ethtool_flags() { local ns="$1" local dev="$2" @@ -711,6 +708,14 @@ for sender in $ns1 $ns2 $ns3 $ns4;do exit $ret fi + # ns1<->ns2 is not subject to reordering/tc delays. Use it to test + # mptcp syncookie support. + if [ $sender = $ns1 ]; then + ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=2 + else + ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=1 + fi + run_tests "$ns2" $sender 10.0.1.2 run_tests "$ns2" $sender dead:beef:1::2 run_tests "$ns2" $sender 10.0.2.1 -- 2.30.2