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=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,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 ED32CC10F11 for ; Mon, 22 Apr 2019 19:45:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A62FD218FF for ; Mon, 22 Apr 2019 19:45:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555962345; bh=sq0eE+VglM/+8TvJTi376HaUowcFk2K39SDElKrQABA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=K6tBWrnCMG74wE9nPRzBp5/NCrHhS2f103giu7WjoOONLlxPK+MQGu3jCX/jAPo+r BbUIVkgmbf0Yyb/zaVXke8/dATBJ6JdnGGYc61OS6TpWr95Cpm+1Yr5uriLVe8uVg8 NZV9ftVqpXWGrh69qwcEmEpcPJiqJSM0W+SALaB4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729842AbfDVTpn (ORCPT ); Mon, 22 Apr 2019 15:45:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:47456 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729809AbfDVTpj (ORCPT ); Mon, 22 Apr 2019 15:45:39 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C5856218B0; Mon, 22 Apr 2019 19:45:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555962338; bh=sq0eE+VglM/+8TvJTi376HaUowcFk2K39SDElKrQABA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OTxkAxABhgP3ItnX4opP6TElhSOCJrzH5W3uYyVVtreyl0SFLlCk0Fs5UUjPLyug1 5On9/BQcUMoyrCia5eM7jg8+d9mEhyuAkKJjywdq/LPxUR9KH84mUsUuBZN+aYQTUq g2g1nngnVleCVhE85OwDrecGYNT6hsxpI0SpNSLA= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Xin Long , Pablo Neira Ayuso , Sasha Levin , netfilter-devel@vger.kernel.org, coreteam@netfilter.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 11/68] netfilter: bridge: set skb transport_header before entering NF_INET_PRE_ROUTING Date: Mon, 22 Apr 2019 15:44:19 -0400 Message-Id: <20190422194516.11634-11-sashal@kernel.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190422194516.11634-1-sashal@kernel.org> References: <20190422194516.11634-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Xin Long [ Upstream commit e166e4fdaced850bee3d5ee12a5740258fb30587 ] Since Commit 21d1196a35f5 ("ipv4: set transport header earlier"), skb->transport_header has been always set before entering INET netfilter. This patch is to set skb->transport_header for bridge before entering INET netfilter by bridge-nf-call-iptables. It also fixes an issue that sctp_error() couldn't compute a right csum due to unset skb->transport_header. Fixes: e6d8b64b34aa ("net: sctp: fix and consolidate SCTP checksumming code") Reported-by: Li Shuang Suggested-by: Pablo Neira Ayuso Signed-off-by: Xin Long Acked-by: Neil Horman Acked-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso Signed-off-by: Sasha Levin (Microsoft) --- net/bridge/br_netfilter_hooks.c | 1 + net/bridge/br_netfilter_ipv6.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/net/bridge/br_netfilter_hooks.c b/net/bridge/br_netfilter_hooks.c index 3b0a03b92080..212c184c1eee 100644 --- a/net/bridge/br_netfilter_hooks.c +++ b/net/bridge/br_netfilter_hooks.c @@ -515,6 +515,7 @@ static unsigned int br_nf_pre_routing(void *priv, nf_bridge->ipv4_daddr = ip_hdr(skb)->daddr; skb->protocol = htons(ETH_P_IP); + skb->transport_header = skb->network_header + ip_hdr(skb)->ihl * 4; NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING, state->net, state->sk, skb, skb->dev, NULL, diff --git a/net/bridge/br_netfilter_ipv6.c b/net/bridge/br_netfilter_ipv6.c index 5811208863b7..09d5e0c7b3ba 100644 --- a/net/bridge/br_netfilter_ipv6.c +++ b/net/bridge/br_netfilter_ipv6.c @@ -235,6 +235,8 @@ unsigned int br_nf_pre_routing_ipv6(void *priv, nf_bridge->ipv6_daddr = ipv6_hdr(skb)->daddr; skb->protocol = htons(ETH_P_IPV6); + skb->transport_header = skb->network_header + sizeof(struct ipv6hdr); + NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING, state->net, state->sk, skb, skb->dev, NULL, br_nf_pre_routing_finish_ipv6); -- 2.19.1