From patchwork Tue May 26 22:41:17 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Duyck X-Patchwork-Id: 476767 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 7F54D140DF7 for ; Wed, 27 May 2015 08:41:25 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751309AbbEZWlU (ORCPT ); Tue, 26 May 2015 18:41:20 -0400 Received: from mx1.redhat.com ([209.132.183.28]:60389 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751085AbbEZWlS (ORCPT ); Tue, 26 May 2015 18:41:18 -0400 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id 4010347; Tue, 26 May 2015 22:41:18 +0000 (UTC) Received: from [192.168.122.149] (vpn-230-73.phx2.redhat.com [10.3.230.73]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id t4QMfHM0007799; Tue, 26 May 2015 18:41:17 -0400 Subject: [net-next PATCH RFC 1/3] ip_vti/ip6_vti: Do not touch skb->mark on xmit From: Alexander Duyck To: steffen.klassert@secunet.com, davem@davemloft.net, herbert@gondor.apana.org.au Cc: netdev@vger.kernel.org, linux-crypto@vger.kernel.org Date: Tue, 26 May 2015 15:41:17 -0700 Message-ID: <20150526224117.1328.98060.stgit@ahduyck-vm-fedora22> In-Reply-To: <20150526223849.1328.64212.stgit@ahduyck-vm-fedora22> References: <20150526223849.1328.64212.stgit@ahduyck-vm-fedora22> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Instead of modifying skb->mark we can simply modify the flowi_mark that is generated as a result of the xfrm_decode_session. By doing this we don't need to actually touch the skb->mark and it can be preserved as it passes out through the tunnel. Signed-off-by: Alexander Duyck --- net/ipv4/ip_vti.c | 5 +++-- net/ipv6/ip6_vti.c | 4 +++- 2 files changed, 6 insertions(+), 3 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c index 9f7269f3c54a..4c318e1c13c8 100644 --- a/net/ipv4/ip_vti.c +++ b/net/ipv4/ip_vti.c @@ -216,8 +216,6 @@ static netdev_tx_t vti_tunnel_xmit(struct sk_buff *skb, struct net_device *dev) memset(&fl, 0, sizeof(fl)); - skb->mark = be32_to_cpu(tunnel->parms.o_key); - switch (skb->protocol) { case htons(ETH_P_IP): xfrm_decode_session(skb, &fl, AF_INET); @@ -233,6 +231,9 @@ static netdev_tx_t vti_tunnel_xmit(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_OK; } + /* override mark with tunnel output key */ + fl.flowi_mark = be32_to_cpu(tunnel->parms.o_key); + return vti_xmit(skb, dev, &fl); } diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c index ed9d681207fa..104de4da3ff3 100644 --- a/net/ipv6/ip6_vti.c +++ b/net/ipv6/ip6_vti.c @@ -495,7 +495,6 @@ vti6_tnl_xmit(struct sk_buff *skb, struct net_device *dev) int ret; memset(&fl, 0, sizeof(fl)); - skb->mark = be32_to_cpu(t->parms.o_key); switch (skb->protocol) { case htons(ETH_P_IPV6): @@ -516,6 +515,9 @@ vti6_tnl_xmit(struct sk_buff *skb, struct net_device *dev) goto tx_err; } + /* override mark with tunnel output key */ + fl.flowi_mark = be32_to_cpu(t->parms.o_key); + ret = vti6_xmit(skb, dev, &fl); if (ret < 0) goto tx_err;