X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fipv6%2Fxfrm6_mode_beet.c;h=2bfb4f05c14cdffec7f7c455e5ecf43f34acd4c9;hb=37e58df30063e229ee5157f9d1c1fa1d749917c2;hp=2e61d6ddece303665ce8209f845c9f25195ce322;hpb=c58b8e4a25a1ba347a0e5d21984c97bd296f1691;p=linux-2.6

diff --git a/net/ipv6/xfrm6_mode_beet.c b/net/ipv6/xfrm6_mode_beet.c
index 2e61d6ddec..2bfb4f05c1 100644
--- a/net/ipv6/xfrm6_mode_beet.c
+++ b/net/ipv6/xfrm6_mode_beet.c
@@ -22,14 +22,6 @@
 /* Add encapsulation header.
  *
  * The top IP header will be constructed per draft-nikander-esp-beet-mode-06.txt.
- * The following fields in it shall be filled in by x->type->output:
- *	payload_len
- *
- * On exit, skb->h will be set to the start of the encapsulation header to be
- * filled in by x->type->output and skb->nh 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 will always
- * point to the top IP header.
  */
 static int xfrm6_beet_output(struct xfrm_state *x, struct sk_buff *skb)
 {
@@ -37,19 +29,17 @@ static int xfrm6_beet_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 = ip6_find_1stfragopt(skb, &prevhdr);
-	skb_set_network_header(skb,
-			       (prevhdr - x->props.header_len) - skb->data);
-	skb_set_transport_header(skb, hdr_len);
-	memmove(skb->data, iph, hdr_len);
 
-	skb_reset_network_header(skb);
+	skb_set_mac_header(skb, (prevhdr - x->props.header_len) - skb->data);
+	skb_set_network_header(skb, -x->props.header_len);
+	skb->transport_header = skb->network_header + hdr_len;
+	__skb_pull(skb, hdr_len);
+
 	top_iph = ipv6_hdr(skb);
-	skb->transport_header = skb->network_header + sizeof(struct ipv6hdr);
-	skb->network_header += offsetof(struct ipv6hdr, nexthdr);
+	memmove(top_iph, iph, hdr_len);
 
 	ipv6_addr_copy(&top_iph->saddr, (struct in6_addr *)&x->props.saddr);
 	ipv6_addr_copy(&top_iph->daddr, (struct in6_addr *)&x->id.daddr);
@@ -89,6 +79,7 @@ static struct xfrm_mode xfrm6_beet_mode = {
 	.output = xfrm6_beet_output,
 	.owner = THIS_MODULE,
 	.encap = XFRM_MODE_BEET,
+	.flags = XFRM_MODE_FLAG_TUNNEL,
 };
 
 static int __init xfrm6_beet_init(void)