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authorHerbert Xu <herbert@gondor.apana.org.au>2007-11-19 18:47:58 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 14:53:53 -0800
commit60d5fcfb19d8a958fc563e52240cd05ec23f36c9 (patch)
treef1bb64a18b1b183ad1cdf84f88a42a0b643af720 /net/ipv6/xfrm6_output.c
parent[IPSEC]: Make x->lastused an unsigned long (diff)
downloadlinux-dev-60d5fcfb19d8a958fc563e52240cd05ec23f36c9.tar.xz
linux-dev-60d5fcfb19d8a958fc563e52240cd05ec23f36c9.zip
[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/ipv6/xfrm6_output.c')
-rw-r--r--net/ipv6/xfrm6_output.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index a0a924991c4f..318669a9cb48 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -53,7 +53,8 @@ int xfrm6_extract_output(struct xfrm_state *x, struct sk_buff *skb)
if (err)
return err;
- IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);
+ XFRM_MODE_SKB_CB(skb)->protocol = ipv6_hdr(skb)->nexthdr;
+
return xfrm6_extract_header(skb);
}