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[IPSEC]: Add xfrm_input_state helper

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This patch adds the xfrm_input_state helper function which returns the
current xfrm state being processed on the input path given an sk_buff.
This is currently only used by xfrm_input but will be used by ESP upon
asynchronous resumption.

Signed-off-by: Herbert Xu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Herbert Xu 2007-12-11 01:53:43 -08:00 • committed by David S. Miller
commit 005011211f
2 changed files with 6 additions and 1 deletions
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2
net/xfrm/xfrm_input.c
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@ -109,7 +109,7 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
/* A negative encap_type indicates async resumption. */
if (encap_type < 0) {
async = 1;
x = skb->sp->xvec[skb->sp->len - 1];
x = xfrm_input_state(skb);
seq = XFRM_SKB_CB(skb)->seq;
goto resume;
}