netdev - [PATCH] xfrm4: strip ECN bits from tos field

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Message-ID: <20100922164511.GA10963@babylon>
Date:	Wed, 22 Sep 2010 18:45:11 +0200
From:	Ulrich Weber <uweber@...aro.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org
Subject: [PATCH] xfrm4: strip ECN bits from tos field

otherwise ECT(1) bit will get interpreted as RTO_ONLINK
and routing will fail with XfrmOutBundleGenError.

Signed-off-by: Ulrich Weber <uweber@...aro.com>
---
 net/ipv4/xfrm4_policy.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 869078d..a580349 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -61,7 +61,7 @@ static int xfrm4_get_saddr(struct net *net,
 
 static int xfrm4_get_tos(struct flowi *fl)
 {
-	return fl->fl4_tos;
+	return IPTOS_RT_MASK & fl->fl4_tos; /* Strip ECN bits */
 }
 
 static int xfrm4_init_path(struct xfrm_dst *path, struct dst_entry *dst,
-- 
1.7.0.4

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