[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, 5 insertions, 0 deletions

diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index 5b1c978a323c..20e789d8c63e 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -58,6 +58,11 @@ int xfrm_output(struct sk_buff *skb)
                 if (err)
                         goto error;
 
+                if (x->type->flags & XFRM_TYPE_REPLAY_PROT) {
+                        XFRM_SKB_CB(skb)->seq = ++x->replay.oseq;
+                        xfrm_aevent_doreplay(x);
+                }
+
                 err = x->mode->output(x, skb);
                 if (err)
                         goto error;