diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2007-04-10 20:50:43 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-04-25 22:24:59 -0700 |
| commit | d56f90a7c96da5187f0cdf07ee7434fe6aa78bbc (patch) | |
| tree | 3b9073cecfbb3b6a1e25ab2b5dd2a22a43aef238 /net/ipv4/ah4.c | |
| parent | bbe735e4247dba32568a305553b010081c8dea99 (diff) | |
[SK_BUFF]: Introduce skb_network_header()
For the places where we need a pointer to the network header, it is still legal
to touch skb->nh.raw directly if just adding to, subtracting from or setting it
to another layer header.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ah4.c')
| -rw-r--r-- | net/ipv4/ah4.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c index 7194eb40b6d..95ddbbd1552 100644 --- a/net/ipv4/ah4.c +++ b/net/ipv4/ah4.c @@ -154,7 +154,7 @@ static int ah_input(struct xfrm_state *x, struct sk_buff *skb) ah = (struct ip_auth_hdr*)skb->data; iph = skb->nh.iph; - ihl = skb->data - skb->nh.raw; + ihl = skb->data - skb_network_header(skb); memcpy(work_buf, iph, ihl); iph->ttl = 0; @@ -181,7 +181,8 @@ 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; + skb->h.raw = memcpy(skb_network_header(skb), work_buf, ihl); __skb_pull(skb, ah_hlen + ihl); return 0; |