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| author |   Herbert Xu <herbert@gondor.apana.org.au> | 2007-10-10 15:44:44 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:55:54 -0700 |
| commit | 37fedd3aab6517daec628764c5d66dd8761fbe5f (patch) | |
| tree | 12227aec3944168bff04173dccd580240f4496aa /net/ipv4/xfrm4_mode_transport.c | |
| parent | [IPSEC]: Set skb->data to payload in x->mode->output (diff) | |
| download | linux-dev-37fedd3aab6517daec628764c5d66dd8761fbe5f.tar.xz linux-dev-37fedd3aab6517daec628764c5d66dd8761fbe5f.zip | |
[IPSEC]: Use IPv6 calling convention as the convention for x->mode->output
The IPv6 calling convention for x->mode->output is more general and could
help an eventual protocol-generic x->type->output implementation. This
patch adopts it for IPv4 as well and modifies the IPv4 type output functions
accordingly.
It also rewrites the IPv6 mac/transport header calculation to be based off
the network header where practical.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | net/ipv4/xfrm4_mode_transport.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/net/ipv4/xfrm4_mode_transport.c b/net/ipv4/xfrm4_mode_transport.c index 10499d2ec65e..fd840c7d75ea 100644 --- a/net/ipv4/xfrm4_mode_transport.c +++ b/net/ipv4/xfrm4_mode_transport.c @@ -17,17 +17,16 @@ * * The IP header will be moved forward to make space for the encapsulation * header. - * - * On exit, skb->h will be set to the start of the payload to be processed - * by x->type->output and skb->nh will be set to the top IP header. */ static int xfrm4_transport_output(struct xfrm_state *x, struct sk_buff *skb) { struct iphdr *iph = ip_hdr(skb); int ihl = iph->ihl * 4; - skb->transport_header = skb->network_header + ihl; skb_set_network_header(skb, -x->props.header_len); + skb->mac_header = skb->network_header + + offsetof(struct iphdr, protocol); + skb->transport_header = skb->network_header + ihl; __skb_pull(skb, ihl); memmove(skb_network_header(skb), iph, ihl); return 0; |