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[IPSEC]: Use IPv6 calling convention as the convention for x->mode->output

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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>
This commit is contained in:
Herbert Xu
2007-10-10 15:44:44 -07:00
committed by David S. Miller
parent 7b277b1a5f
commit 37fedd3aab
11 changed files with 44 additions and 67 deletions
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6
net/ipv4/ah4.c
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@ -82,14 +82,14 @@ static int ah_output(struct xfrm_state *x, struct sk_buff *skb)
goto error;
}
ah = (struct ip_auth_hdr *)((char *)top_iph+top_iph->ihl*4);
ah->nexthdr = top_iph->protocol;
ah = (struct ip_auth_hdr *)skb_transport_header(skb);
ah->nexthdr = *skb_mac_header(skb);
*skb_mac_header(skb) = IPPROTO_AH;
top_iph->tos = 0;
top_iph->tot_len = htons(skb->len);
top_iph->frag_off = 0;
top_iph->ttl = 0;
top_iph->protocol = IPPROTO_AH;
top_iph->check = 0;
ahp = x->data;