From patchwork Thu May 6 06:39:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geliang Tang X-Patchwork-Id: 1474823 X-Patchwork-Delegate: mathew.j.martineau@linux.intel.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.linux.dev (client-ip=2604:1380:1:3600::1; helo=ewr.edge.kernel.org; envelope-from=mptcp+bounces-552-incoming=patchwork.ozlabs.org@lists.linux.dev; receiver=) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=c6KOt9Bt; dkim-atps=neutral Received: from ewr.edge.kernel.org (ewr.edge.kernel.org [IPv6:2604:1380:1:3600::1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4FbP8Y3kk4z9sRf for ; Thu, 6 May 2021 16:40:13 +1000 (AEST) Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ewr.edge.kernel.org (Postfix) with ESMTPS id A32231C0D66 for ; Thu, 6 May 2021 06:40:11 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 5ED1E2F81; Thu, 6 May 2021 06:40:10 +0000 (UTC) X-Original-To: mptcp@lists.linux.dev Received: from mail-pg1-f178.google.com (mail-pg1-f178.google.com [209.85.215.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9318172 for ; Thu, 6 May 2021 06:40:09 +0000 (UTC) Received: by mail-pg1-f178.google.com with SMTP id m12so4025199pgr.9 for ; Wed, 05 May 2021 23:40:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=vVjigd1qX519ndNq/Ykljn9j8iBmrrAjlLeHceG/21g=; b=c6KOt9Btqb957+5tXUeF9ThLAB0jE7Pd39kNeU/v0m4GM7TxKFJKwZk62wWjKdOYgi WakU4C1oFZUcR5Dl8JwXO2SpDFk/tJs4x5FtHypT3NTZo6E/HzHefOlr2tOE34QaK832 vPrN+z0yL52lsZc8G6BdrPWGMrOl/g1oUjyi53VLA6o4SanREAewmKxEpcDZhgvudk26 Xm81sGKnD8FAs2SCbJAmL2UUNyz8bnKZxPWHcRkgqXmVGw6y++XyPNNVMcLQ7RtUnIuW JofT7UILh4vMIO740tYeRUBLA98RCbv7U9upmIhix7r4wSiKLngXXlX6BZju6s+tNjO6 QYzw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=vVjigd1qX519ndNq/Ykljn9j8iBmrrAjlLeHceG/21g=; b=VuPQxow0a0zS3zPUGzdlQ4rbIUyQAP6QhTyLZ8+0g9Lj/zZPlSZez5i+4DSK5CdaQd 8EY7rwPbYc2gQyNvE1INQ11UPXYh64yk0urv+Sxyvbjg1WNEjH+aqUIsXJB5L0uM0yVR KC/uyFYtHBDiqsTVG7LU3G2WBfZGRI1KNvgoPHkVGZvM/KgyuFH6GUYzueDuwA6BUZgG mlzWYOeSXnOoK3VuCO8Z4JRVmTkqP1FotbWUHYwdpjb2KqxZ63tynv/jPwAWxVPAjYk4 2LTKG3MDBhaBH70aDa4iBk5QVz9wi0TzmhSK9Numl4Dxxl/sUbGkNVic/GFvailc94cK mjJw== X-Gm-Message-State: AOAM533HCX2bdM7BZo1gjdn4xo28pYoFmbqSt96uLGGAidZmCnwGswBh z2Zy6avQr0zoy48BtaWUuKdoJeBWaXs= X-Google-Smtp-Source: ABdhPJx7MYAc7ZveHrmgRI/0KA79bVfrO//H5HJkpYNMv2RdSlzfKWLaDfvsvA1o/qGyhN3M5Z8aZw== X-Received: by 2002:a63:4512:: with SMTP id s18mr2767150pga.275.1620283209089; Wed, 05 May 2021 23:40:09 -0700 (PDT) Received: from localhost ([209.9.72.213]) by smtp.gmail.com with ESMTPSA id a5sm1081580pja.37.2021.05.05.23.40.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 May 2021 23:40:08 -0700 (PDT) From: Geliang Tang To: mptcp@lists.linux.dev Cc: Geliang Tang Subject: [MPTCP][PATCH mptcp-next 3/3] mptcp: send out MP_FAIL when data checksum fail Date: Thu, 6 May 2021 14:39:53 +0800 Message-Id: X-Mailer: git-send-email 2.31.1 In-Reply-To: References: X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 When a bad checksum is detected, send out the MP_FAIL suboption. Signed-off-by: Geliang Tang --- net/mptcp/subflow.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c index 659b8842ae3b..efd84ff61015 100644 --- a/net/mptcp/subflow.c +++ b/net/mptcp/subflow.c @@ -906,6 +906,8 @@ static enum mapping_status validate_data_csum(struct sock *ssk, struct sk_buff * csum = csum_partial(&header, sizeof(header), subflow->map_data_csum); if (unlikely(csum_fold(csum))) { MPTCP_INC_STATS(sock_net(ssk), MPTCP_MIB_DSSCSUMERR); + subflow->send_mp_fail = 1; + subflow->fail_seq = subflow->map_seq; return subflow->mp_join ? MAPPING_INVALID : MAPPING_DUMMY; }