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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E321FEE4993 for ; Thu, 24 Aug 2023 14:56:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241853AbjHXOzn (ORCPT ); Thu, 24 Aug 2023 10:55:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38494 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241904AbjHXOzR (ORCPT ); Thu, 24 Aug 2023 10:55:17 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0A24719A9 for ; Thu, 24 Aug 2023 07:55:16 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 9D06C66F5E for ; Thu, 24 Aug 2023 14:55:15 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B084CC433C8; Thu, 24 Aug 2023 14:55:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1692888915; bh=t5XLQs3zPIMxJ1plc8R9tWGnqkSLJC8bTIky5DMvWbM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=idX5O0d5Z0FxYxgIZ1j0++l3wHIIxKSKDmA6mm6QIsg0uTnyYvTOn8Ng3EWuOPI5o kGRsy43j2eOli3V6pwlRKnCVWfJcHhMS1/yym6lRRoXUpkfMvyVIBw0++dgh7NQaBq P7J3d6s4CmS29GUl7x4dTcj9SOfxrSRglA+2Zw7s= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Petr Machata , Mirsad Todorovac , Ido Schimmel , Simon Horman , "David S. Miller" , Sasha Levin Subject: [PATCH 5.15 088/139] selftests: mirror_gre_changes: Tighten up the TTL test match Date: Thu, 24 Aug 2023 16:50:11 +0200 Message-ID: <20230824145027.459757386@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230824145023.559380953@linuxfoundation.org> References: <20230824145023.559380953@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Petr Machata [ Upstream commit 855067defa36b1f9effad8c219d9a85b655cf500 ] This test verifies whether the encapsulated packets have the correct configured TTL. It does so by sending ICMP packets through the test topology and mirroring them to a gretap netdevice. On a busy host however, more than just the test ICMP packets may end up flowing through the topology, get mirrored, and counted. This leads to potential spurious failures as the test observes much more mirrored packets than the sent test packets, and assumes a bug. Fix this by tightening up the mirror action match. Change it from matchall to a flower classifier matching on ICMP packets specifically. Fixes: 45315673e0c5 ("selftests: forwarding: Test changes in mirror-to-gretap") Signed-off-by: Petr Machata Tested-by: Mirsad Todorovac Reviewed-by: Ido Schimmel Reviewed-by: Simon Horman Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- tools/testing/selftests/net/forwarding/mirror_gre_changes.sh | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh b/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh index 472bd023e2a5f..b501b366367f7 100755 --- a/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh +++ b/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh @@ -72,7 +72,8 @@ test_span_gre_ttl() RET=0 - mirror_install $swp1 ingress $tundev "matchall $tcflags" + mirror_install $swp1 ingress $tundev \ + "prot ip flower $tcflags ip_prot icmp" tc filter add dev $h3 ingress pref 77 prot $prot \ flower ip_ttl 50 action pass -- 2.40.1