[SK_BUFF]: Introduce icmp_hdr(), remove skb->h.icmph

[net-next-2.6.git] / net / ipv4 / ah4.c

diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index 7194eb40b6d08cbd2304fb8dd8d9eb415b9a73de..e1bb9e0aa5f3043c021bce16220d0f24886fb74c 100644 (file)
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -65,7 +65,7 @@ static int ah_output(struct xfrm_state *x, struct sk_buff *skb)
                char            buf[60];
        } tmp_iph;
 
-       top_iph = skb->nh.iph;
+       top_iph = ip_hdr(skb);
        iph = &tmp_iph.iph;
 
        iph->tos = top_iph->tos;
@@ -152,9 +152,9 @@ static int ah_input(struct xfrm_state *x, struct sk_buff *skb)
        skb->ip_summed = CHECKSUM_NONE;
 
        ah = (struct ip_auth_hdr*)skb->data;
-       iph = skb->nh.iph;
+       iph = ip_hdr(skb);
 
-       ihl = skb->data - skb->nh.raw;
+       ihl = skb->data - skb_network_header(skb);
        memcpy(work_buf, iph, ihl);
 
        iph->ttl = 0;
@@ -181,7 +181,9 @@ static int ah_input(struct xfrm_state *x, struct sk_buff *skb)
                }
        }
        ((struct iphdr*)work_buf)->protocol = ah->nexthdr;
-       skb->h.raw = memcpy(skb->nh.raw += ah_hlen, work_buf, ihl);
+       skb->nh.raw += ah_hlen;
+       memcpy(skb_network_header(skb), work_buf, ihl);
+       skb->h.raw = skb->nh.raw;
        __skb_pull(skb, ah_hlen + ihl);
 
        return 0;
@@ -196,8 +198,8 @@ static void ah4_err(struct sk_buff *skb, u32 info)
        struct ip_auth_hdr *ah = (struct ip_auth_hdr*)(skb->data+(iph->ihl<<2));
        struct xfrm_state *x;
 
-       if (skb->h.icmph->type != ICMP_DEST_UNREACH ||
-           skb->h.icmph->code != ICMP_FRAG_NEEDED)
+       if (icmp_hdr(skb)->type != ICMP_DEST_UNREACH ||
+           icmp_hdr(skb)->code != ICMP_FRAG_NEEDED)
                return;
 
        x = xfrm_state_lookup((xfrm_address_t *)&iph->daddr, ah->spi, IPPROTO_AH, AF_INET);