From patchwork Sat Jan 16 10:44:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guillaume Nault X-Patchwork-Id: 12024843 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=-11.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 1FA2EC433DB for ; Sat, 16 Jan 2021 10:45:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E598B205CB for ; Sat, 16 Jan 2021 10:45:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726416AbhAPKpw (ORCPT ); Sat, 16 Jan 2021 05:45:52 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:54154 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725979AbhAPKpv (ORCPT ); Sat, 16 Jan 2021 05:45:51 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1610793864; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type; bh=+Y0Xj399Rzv5eZQdey8dpfuEebgTVvxEKp+NUUMhBME=; b=eQ7medPoZRKpsfBBu5QK+M8CM46wuAwknVJxxOnRagpEm/ShDwKva9FkBDg4oaazs7/Ndx ErrPwRVW3nzZH9DBy9VB5MV7uNBjHfm3Iwm8f0ChLpfVhtzHyB8Ukyf3XTDqKFb3nW2lwB J/W9k8EgBBhM41RUh5eVuPMC20y2YcM= Received: from mail-wr1-f70.google.com (mail-wr1-f70.google.com [209.85.221.70]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-380-9uuapIFjMBmpt3INZJBQGw-1; Sat, 16 Jan 2021 05:44:23 -0500 X-MC-Unique: 9uuapIFjMBmpt3INZJBQGw-1 Received: by mail-wr1-f70.google.com with SMTP id j5so5428157wro.12 for ; Sat, 16 Jan 2021 02:44:23 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition; bh=+Y0Xj399Rzv5eZQdey8dpfuEebgTVvxEKp+NUUMhBME=; b=KMJXufwbzz82zRB7FhJzMwQPKFxs9fp06OKCiuTINlFw1cSyUVHs13wquvM2YGlHyZ 8hfqF9s72GDm1x/J2dxlmKmJQZhBzAa06PH+/j6adEPCXo3cfDDlbKXz7npEIBrFDHcz SUsHzOhq2Fv1C1qDtdrAeZL5QWzpfQ+NmajzJdh8DJM1Y1n5HbpNuWJ3JIcQaqP9c3XC hNH0SwLy0NC02Ii5kS8Md/rjlk0zPkKr+vgH7cmLshIV/JDCXqJnkQkjlXmwkYXX74lq /JUqgpH6E0i03z+pWUvotgpAf8CKeLeKHaQ9aMn7Q50ohq8mUBNWRl/vPM5r15RGvERE z74A== X-Gm-Message-State: AOAM533R+nmdqn5iAeHqzONp91/7lydCQc8UFirqmCF6OyWn+BhV7CTU 7iqxEnMmlz3XcE6YkmsRTHLN9tVoEwnRFEsIjwviMyZSV4+MwxMwaVTWFUYKPS+LPvxxHpThEJ+ M4jhIf0QB7tnxG9+H X-Received: by 2002:a1c:40d6:: with SMTP id n205mr12924990wma.0.1610793861798; Sat, 16 Jan 2021 02:44:21 -0800 (PST) X-Google-Smtp-Source: ABdhPJxxGlYqNYAm8VEm9052Bj8vSbihxcupBb8ZhnZbvxiwFUez6OF+JvqmXjFAK8CQ5Gho5Z1xaQ== X-Received: by 2002:a1c:40d6:: with SMTP id n205mr12924979wma.0.1610793861624; Sat, 16 Jan 2021 02:44:21 -0800 (PST) Received: from linux.home (2a01cb058918ce00dd1a5a4f9908f2d5.ipv6.abo.wanadoo.fr. [2a01:cb05:8918:ce00:dd1a:5a4f:9908:f2d5]) by smtp.gmail.com with ESMTPSA id w8sm18210410wrl.91.2021.01.16.02.44.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 16 Jan 2021 02:44:20 -0800 (PST) Date: Sat, 16 Jan 2021 11:44:18 +0100 From: Guillaume Nault To: David Miller , Jakub Kicinski Cc: netdev@vger.kernel.org, Paolo Abeni , Florian Westphal , Pablo Neira Ayuso , Jozsef Kadlecsik Subject: [PATCH net 0/2] ipv4: Ensure ECN bits don't influence source address validation Message-ID: MIME-Version: 1.0 Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Functions that end up calling fib_table_lookup() should clear the ECN bits from the TOS, otherwise ECT(0) and ECT(1) packets can be treated differently. Most functions already clear the ECN bits, but there are a few cases where this is not done. This series only fixes the ones related to source address validation. Guillaume Nault (2): udp: mask TOS bits in udp_v4_early_demux() netfilter: rpfilter: mask ecn bits before fib lookup net/ipv4/netfilter/ipt_rpfilter.c | 2 +- net/ipv4/udp.c | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-)