From 37fedd3aab6517daec628764c5d66dd8761fbe5f Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Wed, 10 Oct 2007 15:44:44 -0700 Subject: [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 Signed-off-by: David S. Miller --- net/ipv6/xfrm6_mode_transport.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) (limited to 'net/ipv6/xfrm6_mode_transport.c') diff --git a/net/ipv6/xfrm6_mode_transport.c b/net/ipv6/xfrm6_mode_transport.c index f2ee186494ed..4e344105b3fd 100644 --- a/net/ipv6/xfrm6_mode_transport.c +++ b/net/ipv6/xfrm6_mode_transport.c @@ -18,13 +18,6 @@ * * The IP header and mutable extension headers will be moved forward to make * space for the encapsulation header. - * - * On exit, skb->h will be set to the start of the encapsulation header to be - * filled in by x->type->output and the mac header will be set to the - * nextheader field of the extension header directly preceding the - * encapsulation header, or in its absence, that of the top IP header. - * The value of the network header will always point to the top IP header - * while skb->data will point to the payload. */ static int xfrm6_transport_output(struct xfrm_state *x, struct sk_buff *skb) { @@ -37,7 +30,7 @@ static int xfrm6_transport_output(struct xfrm_state *x, struct sk_buff *skb) hdr_len = x->type->hdr_offset(x, skb, &prevhdr); skb_set_mac_header(skb, (prevhdr - x->props.header_len) - skb->data); skb_set_network_header(skb, -x->props.header_len); - skb_set_transport_header(skb, hdr_len - x->props.header_len); + skb->transport_header = skb->network_header + hdr_len; __skb_pull(skb, hdr_len); memmove(ipv6_hdr(skb), iph, hdr_len); return 0; -- cgit v1.2.3-59-g8ed1b