diff options
Diffstat (limited to 'net/ipv6/xfrm6_mode_tunnel.c')
| -rw-r--r-- | net/ipv6/xfrm6_mode_tunnel.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c index 3dd40af75e8..01bd7d11ea1 100644 --- a/net/ipv6/xfrm6_mode_tunnel.c +++ b/net/ipv6/xfrm6_mode_tunnel.c @@ -41,8 +41,8 @@ static inline void ip6ip_ecn_decapsulate(struct sk_buff *skb) * 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 skb->data and the network header will always point to 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_tunnel_output(struct xfrm_state *x, struct sk_buff *skb) { @@ -51,12 +51,13 @@ static int xfrm6_tunnel_output(struct xfrm_state *x, struct sk_buff *skb) struct ipv6hdr *iph, *top_iph; int dsfield; - skb_push(skb, x->props.header_len); iph = ipv6_hdr(skb); - skb_set_mac_header(skb, offsetof(struct ipv6hdr, nexthdr)); - skb_reset_network_header(skb); - skb_set_transport_header(skb, sizeof(struct ipv6hdr)); + skb_set_mac_header(skb, offsetof(struct ipv6hdr, nexthdr) - + x->props.header_len); + skb_set_network_header(skb, -x->props.header_len); + skb_set_transport_header(skb, sizeof(struct ipv6hdr) - + x->props.header_len); top_iph = ipv6_hdr(skb); top_iph->version = 6; |