[IPSEC]: Move output replay code into xfrm_output

The replay counter is one of only two remaining things in the output code
that requires a lock on the xfrm state (the other being the crypto).  This
patch moves it into the generic xfrm_output so we can remove the lock from
the transforms themselves.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index dc1d8e871b2..58af298e194 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -96,8 +96,7 @@ static int ah_output(struct xfrm_state *x, struct sk_buff *skb)
 
         ah->reserved = 0;
         ah->spi = x->id.spi;
-        ah->seq_no = htonl(++x->replay.oseq);
-        xfrm_aevent_doreplay(x);
+        ah->seq_no = htonl(XFRM_SKB_CB(skb)->seq);
         err = ah_mac_digest(ahp, skb, ah->auth_data);
         if (err)
                 goto error;
@@ -297,6 +296,7 @@ static struct xfrm_type ah_type =
         .description    = "AH4",
         .owner          = THIS_MODULE,
         .proto          = IPPROTO_AH,
+        .flags          = XFRM_TYPE_REPLAY_PROT,
         .init_state     = ah_init_state,
         .destructor     = ah_destroy,
         .input          = ah_input,