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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_tunnel.c | |
| parent | 7b277b1a5fb147cb828e5d8b9780cee60f31a9bf (diff) | |
| download | linux-37fedd3aab6517daec628764c5d66dd8761fbe5f.tar.gz linux-37fedd3aab6517daec628764c5d66dd8761fbe5f.tar.bz2 linux-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 'net/ipv4/xfrm4_mode_tunnel.c')
| -rw-r--r-- | net/ipv4/xfrm4_mode_tunnel.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/net/ipv4/xfrm4_mode_tunnel.c b/net/ipv4/xfrm4_mode_tunnel.c index bac1a91f0cbe..f1d41ea34785 100644 --- a/net/ipv4/xfrm4_mode_tunnel.c +++ b/net/ipv4/xfrm4_mode_tunnel.c @@ -35,9 +35,6 @@ static inline void ipip6_ecn_decapsulate(struct iphdr *iph, struct sk_buff *skb) * in it shall be filled in by x->type->output: * tot_len * check - * - * 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_tunnel_output(struct xfrm_state *x, struct sk_buff *skb) { @@ -47,9 +44,11 @@ static int xfrm4_tunnel_output(struct xfrm_state *x, struct sk_buff *skb) int flags; iph = ip_hdr(skb); - skb->transport_header = skb->network_header; 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 + sizeof(*iph); top_iph = ip_hdr(skb); top_iph->ihl = 5; |