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path: root/net/ipv4/xfrm4_mode_beet.c
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Diffstat (limited to 'net/ipv4/xfrm4_mode_beet.c')
-rw-r--r--net/ipv4/xfrm4_mode_beet.c17
1 files changed, 7 insertions, 10 deletions
diff --git a/net/ipv4/xfrm4_mode_beet.c b/net/ipv4/xfrm4_mode_beet.c
index 77888f596737..7226c6486c01 100644
--- a/net/ipv4/xfrm4_mode_beet.c
+++ b/net/ipv4/xfrm4_mode_beet.c
@@ -23,17 +23,14 @@
* The following fields in it shall be filled in by x->type->output:
* tot_len
* check
- *
- * On exit, skb->h will be set to the start of the payload to be processed
- * by x->type->output and skb->nh will be set to the top IP header.
*/
static int xfrm4_beet_output(struct xfrm_state *x, struct sk_buff *skb)
{
+ struct ip_beet_phdr *ph;
struct iphdr *iph, *top_iph;
int hdrlen, optlen;
iph = ip_hdr(skb);
- skb->transport_header = skb->network_header;
hdrlen = 0;
optlen = iph->ihl * 4 - sizeof(*iph);
@@ -42,17 +39,17 @@ static int xfrm4_beet_output(struct xfrm_state *x, struct sk_buff *skb)
skb_set_network_header(skb, IPV4_BEET_PHMAXLEN - x->props.header_len -
hdrlen);
- top_iph = ip_hdr(skb);
- skb->transport_header += sizeof(*iph) - hdrlen;
- __skb_pull(skb, sizeof(*iph) - hdrlen);
+ skb->mac_header = skb->network_header +
+ offsetof(struct iphdr, protocol);
+ skb->transport_header = skb->network_header + sizeof(*iph);
+
+ ph = (struct ip_beet_phdr *)__skb_pull(skb, sizeof(*iph) - hdrlen);
+ top_iph = ip_hdr(skb);
memmove(top_iph, iph, sizeof(*iph));
if (unlikely(optlen)) {
- struct ip_beet_phdr *ph;
-
BUG_ON(optlen < 0);
- ph = (struct ip_beet_phdr *)skb_transport_header(skb);
ph->padlen = 4 - (optlen & 4);
ph->hdrlen = optlen / 8;
ph->nexthdr = top_iph->protocol;