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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2007-12-11 01:53:43 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 14:57:05 -0800 |
| commit | 005011211f559113686938c2c252b8ee1ab855b5 (patch) | |
| tree | a126bc8cbbfa9a263e06cc517fe3c1ae6f31af59 | |
| parent | 385ac2e3f226c09cb71733df1899658e33a7850f (diff) | |
| download | linux-005011211f559113686938c2c252b8ee1ab855b5.tar.gz linux-005011211f559113686938c2c252b8ee1ab855b5.tar.bz2 linux-005011211f559113686938c2c252b8ee1ab855b5.zip | |
[IPSEC]: Add xfrm_input_state helper
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 <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/xfrm.h | 5 | ||||
| -rw-r--r-- | net/xfrm/xfrm_input.c | 2 |
2 files changed, 6 insertions, 1 deletions
diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 503d0d294a4c..fe881b6e2bd0 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -1317,4 +1317,9 @@ static inline void xfrm_states_delete(struct xfrm_state **states, int n) } #endif +static inline struct xfrm_state *xfrm_input_state(struct sk_buff *skb) +{ + return skb->sp->xvec[skb->sp->len - 1]; +} + #endif /* _NET_XFRM_H */ diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c index 8b2b1b59133e..8624cbdb2a1e 100644 --- a/net/xfrm/xfrm_input.c +++ b/net/xfrm/xfrm_input.c @@ -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; } |