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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2007-11-19 18:47:58 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 14:53:53 -0800 |
| commit | 60d5fcfb19d8a958fc563e52240cd05ec23f36c9 (patch) | |
| tree | f1bb64a18b1b183ad1cdf84f88a42a0b643af720 /net/xfrm | |
| parent | d26f398400311982d2433debae85746c348b7d58 (diff) | |
| download | linux-60d5fcfb19d8a958fc563e52240cd05ec23f36c9.tar.gz | |
[IPSEC]: Remove nhoff from xfrm_input
The nhoff field isn't actually necessary in xfrm_input. For tunnel mode transforms we now throw away the output IP header so it makes no sense to fill in the nexthdr field. For transport mode we can now let the function transport_finish do the setting and it knows where the nexthdr field is. The only other thing that needs the nexthdr field to be set is the header extraction code. However, we can simply move the protocol extraction out of the generic header extraction. We want to minimise the amount of info we have to carry around between transforms as this simplifies the resumption process for async crypto. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/xfrm')
| -rw-r--r-- | net/xfrm/xfrm_input.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c index 5cad522e8ef6..cce9d4586045 100644 --- a/net/xfrm/xfrm_input.c +++ b/net/xfrm/xfrm_input.c @@ -102,7 +102,6 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) __be32 seq; struct xfrm_state *x; int decaps = 0; - unsigned int nhoff = XFRM_SPI_SKB_CB(skb)->nhoff; unsigned int daddroff = XFRM_SPI_SKB_CB(skb)->daddroff; /* Allocate new secpath or COW existing one. */ @@ -157,8 +156,6 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) goto drop_unlock; } - skb_network_header(skb)[nhoff] = nexthdr; - /* only the first xfrm gets the encap type */ encap_type = 0; @@ -170,6 +167,8 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) spin_unlock(&x->lock); + XFRM_MODE_SKB_CB(skb)->protocol = nexthdr; + if (x->inner_mode->input(x, skb)) goto drop; |