diff options
Diffstat (limited to 'net/ipv4/xfrm4_mode_beet.c')
| -rw-r--r-- | net/ipv4/xfrm4_mode_beet.c | 17 |
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; |