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=-16.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 C0B9CC433E9 for ; Tue, 2 Feb 2021 06:53:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 632BB64EE1 for ; Tue, 2 Feb 2021 06:53:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232197AbhBBGxr (ORCPT ); Tue, 2 Feb 2021 01:53:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42470 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232194AbhBBGxj (ORCPT ); Tue, 2 Feb 2021 01:53:39 -0500 Received: from mail-lj1-x231.google.com (mail-lj1-x231.google.com [IPv6:2a00:1450:4864:20::231]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 94229C06178A for ; Mon, 1 Feb 2021 22:52:15 -0800 (PST) Received: by mail-lj1-x231.google.com with SMTP id u4so21175634ljh.6 for ; Mon, 01 Feb 2021 22:52:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=norrbonn-se.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=2jCvKU/t3a17/kKNLCulfFB49Ji8OL7uYgYBU19B1WQ=; b=WVMqfbey1W7NTgnlcKk+XuEc/rE2v2hDOpszx9GyNXa/nHeouJ6QEtliJrzHAujyps EjpIY90fYeeS+VpA6BZVgAOrZ54LEIM3FwYeelCI2XVaabTZvdwaQViGn0ycBRf+HSGe TYcDyyTc7coCY2WrjKEw1wfrV3iojGO4aimXdhP/FnT4ADe+SsAaD4TUQdQ8DNJAE7uR varnIX1NB3bFY5sKzyD73VnJp0WZTu6esYI5oxEiMiNbqbaCrNzzJg0QpAM0XgBX+aBJ tGp18w5D+wJtqx4YMUf0AyttM95jcnt/pAuhC0IYkBUJQgogpQSlCHlN8Ye8VK66a4LA jnCA== 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=2jCvKU/t3a17/kKNLCulfFB49Ji8OL7uYgYBU19B1WQ=; b=FB9SB40pyFZDoBgoyZ2BvaybS0yNYr49/hSXlrhfSfWkE1BrW/3W9c82F4mwmmyi8d uNhD6grPcQbTWPaKv2BuPqbojSq/ILhUauj9fczfQ4AYw1wENuq6qpg4GB9Qz2bhS1of 6/PPNpZ2o3/EH13fXXcxh/CxjoEVflowP4nR4UW5t/xjnfVS7483zTsNNmWeeyFecDOx q8dph+6e9hwgbrthEtAqiten2OtPUQc3xpuYQCeq7EjuYn861Oo2sEqDm34dXflnHCCC bH3RAlDU+whoe6e0mlvvmdFaOiZA09ZMGSBJZLU0KtpDRVoGa4iU1p77yuehhpBntlu0 zTmA== X-Gm-Message-State: AOAM531RG43VekL8QAxyo2HlVJ1H/CySWn142eossLR0oQ5w6R3eUEkI /VaMSNOarKkY9mPaIGR/kfA9HQ== X-Google-Smtp-Source: ABdhPJz35TpiW3HoDJ8Dy1+VbBty+3B4HLLkeuDZi7Mf+Q/8xtusDC1aLQq85MMvCqI/vgJ2Xw+KBw== X-Received: by 2002:a2e:959a:: with SMTP id w26mr12071480ljh.113.1612248734091; Mon, 01 Feb 2021 22:52:14 -0800 (PST) Received: from mimer.emblasoft.lan (h-137-65.A159.priv.bahnhof.se. [81.170.137.65]) by smtp.gmail.com with ESMTPSA id b26sm2535171lff.162.2021.02.01.22.52.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Feb 2021 22:52:13 -0800 (PST) From: Jonas Bonn To: laforge@gnumonks.org, kuba@kernel.org, netdev@vger.kernel.org, pablo@netfilter.org Cc: Jonas Bonn Subject: [PATCH net-next 7/7] gtp: update rx_length_errors for abnormally short packets Date: Tue, 2 Feb 2021 07:51:59 +0100 Message-Id: <20210202065159.227049-8-jonas@norrbonn.se> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210202065159.227049-1-jonas@norrbonn.se> References: <20210202065159.227049-1-jonas@norrbonn.se> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Based on work by Pravin Shelar. Update appropriate stats when packet transmission isn't possible. Signed-off-by: Jonas Bonn Acked-by: Harald Welte --- drivers/net/gtp.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c index a1bb02818977..fa8880c51101 100644 --- a/drivers/net/gtp.c +++ b/drivers/net/gtp.c @@ -189,8 +189,10 @@ static int gtp_rx(struct pdp_ctx *pctx, struct sk_buff *skb, /* Get rid of the GTP + UDP headers. */ if (iptunnel_pull_header(skb, hdrlen, skb->protocol, - !net_eq(sock_net(pctx->sk), dev_net(pctx->dev)))) - return -1; + !net_eq(sock_net(pctx->sk), dev_net(pctx->dev)))) { + gtp->dev->stats.rx_length_errors++; + goto err; + } netdev_dbg(pctx->dev, "forwarding packet from GGSN to uplink\n"); @@ -206,6 +208,10 @@ static int gtp_rx(struct pdp_ctx *pctx, struct sk_buff *skb, netif_rx(skb); return 0; + +err: + gtp->dev->stats.rx_dropped++; + return -1; } /* 1 means pass up to the stack, -1 means drop and 0 means decapsulated. */ -- 2.27.0