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authorSteffen Klassert <steffen.klassert@secunet.com>2011-04-25 15:41:21 -0400
committerDavid S. Miller <davem@davemloft.net>2011-04-26 15:46:04 -0400
commit7833aa05b8db63484b43b4b4c389cd4533140afb (patch)
tree7540e5cef5c96e0a0bcef2baf5360511885ce3b2
parentc0a56e64aec331f33ead29ba493ee184d9bdc840 (diff)
xfrm: Check for the new replay implementation if an esn state is inserted
IPsec extended sequence numbers can be used only with the new anti-replay window implementation. So check if the new implementation is used if an esn state is inserted and return an error if it is not. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/xfrm/xfrm_user.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 5d1d60d3ca83..c658cb3bc7c3 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -124,6 +124,9 @@ static inline int verify_replay(struct xfrm_usersa_info *p,
124{ 124{
125 struct nlattr *rt = attrs[XFRMA_REPLAY_ESN_VAL]; 125 struct nlattr *rt = attrs[XFRMA_REPLAY_ESN_VAL];
126 126
127 if ((p->flags & XFRM_STATE_ESN) && !rt)
128 return -EINVAL;
129
127 if (!rt) 130 if (!rt)
128 return 0; 131 return 0;
129 132