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path: root/net/ipv6/xfrm6_mode_transport.c
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Diffstat (limited to 'net/ipv6/xfrm6_mode_transport.c')
-rw-r--r--net/ipv6/xfrm6_mode_transport.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/net/ipv6/xfrm6_mode_transport.c b/net/ipv6/xfrm6_mode_transport.c
index 65c166b5d72..f2ee186494e 100644
--- a/net/ipv6/xfrm6_mode_transport.c
+++ b/net/ipv6/xfrm6_mode_transport.c
@@ -23,8 +23,8 @@
* 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_transport_output(struct xfrm_state *x, struct sk_buff *skb)
{
@@ -32,14 +32,14 @@ static int xfrm6_transport_output(struct xfrm_state *x, struct sk_buff *skb)
u8 *prevhdr;
int hdr_len;
- skb_push(skb, x->props.header_len);
iph = ipv6_hdr(skb);
hdr_len = x->type->hdr_offset(x, skb, &prevhdr);
skb_set_mac_header(skb, (prevhdr - x->props.header_len) - skb->data);
- skb_reset_network_header(skb);
- skb_set_transport_header(skb, hdr_len);
- memmove(skb->data, iph, hdr_len);
+ skb_set_network_header(skb, -x->props.header_len);
+ skb_set_transport_header(skb, hdr_len - x->props.header_len);
+ __skb_pull(skb, hdr_len);
+ memmove(ipv6_hdr(skb), iph, hdr_len);
return 0;
}