Subject: [PATCH 4/4] xfrm: Restrict extended sequence numbers to esp

From: Steffen Klassert <[email-masked]>
Date: Tue, 29 Mar 2011 07:48:09 +0200

The IPsec extended sequence numbers are fully implemented just for
esp. So restrict the usage to esp until other protocols have
support too.

Signed-off-by: Steffen Klassert <[email-masked]>
---
 net/xfrm/xfrm_user.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index ccc4c0c..3d15d3e 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -127,6 +127,9 @@ static inline int verify_replay(struct xfrm_usersa_info *p,
 	if (!rt)
 		return 0;
 
+	if (p->id.proto != IPPROTO_ESP)
+		return -EINVAL;
+
 	if (p->replay_window != 0)
 		return -EINVAL;
 
-- 
1.7.0.4