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authorArnaldo Carvalho de Melo <acme@redhat.com>2007-04-11 07:50:43 +0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-26 09:24:59 +0400
commitd56f90a7c96da5187f0cdf07ee7434fe6aa78bbc (patch)
tree3b9073cecfbb3b6a1e25ab2b5dd2a22a43aef238 /net/ipv4/ip_options.c
parentbbe735e4247dba32568a305553b010081c8dea99 (diff)
downloadlinux-d56f90a7c96da5187f0cdf07ee7434fe6aa78bbc.tar.xz
[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/ip_options.c')
-rw-r--r--net/ipv4/ip_options.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index f906a80d5a87..f7e9db612565 100644
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -40,7 +40,7 @@
void ip_options_build(struct sk_buff * skb, struct ip_options * opt,
__be32 daddr, struct rtable *rt, int is_frag)
{
- unsigned char * iph = skb->nh.raw;
+ unsigned char *iph = skb_network_header(skb);
memcpy(&(IPCB(skb)->opt), opt, sizeof(struct ip_options));
memcpy(iph+sizeof(struct iphdr), opt->__data, opt->optlen);
@@ -104,7 +104,7 @@ int ip_options_echo(struct ip_options * dopt, struct sk_buff * skb)
return 0;
}
- sptr = skb->nh.raw;
+ sptr = skb_network_header(skb);
dptr = dopt->__data;
if (skb->dst)
@@ -217,7 +217,7 @@ int ip_options_echo(struct ip_options * dopt, struct sk_buff * skb)
void ip_options_fragment(struct sk_buff * skb)
{
- unsigned char * optptr = skb->nh.raw + sizeof(struct iphdr);
+ unsigned char *optptr = skb_network_header(skb) + sizeof(struct iphdr);
struct ip_options * opt = &(IPCB(skb)->opt);
int l = opt->optlen;
int optlen;
@@ -264,7 +264,7 @@ int ip_options_compile(struct ip_options * opt, struct sk_buff * skb)
if (!opt) {
opt = &(IPCB(skb)->opt);
- iph = skb->nh.raw;
+ iph = skb_network_header(skb);
opt->optlen = ((struct iphdr *)iph)->ihl*4 - sizeof(struct iphdr);
optptr = iph + sizeof(struct iphdr);
opt->is_data = 0;
@@ -563,7 +563,7 @@ void ip_forward_options(struct sk_buff *skb)
struct ip_options * opt = &(IPCB(skb)->opt);
unsigned char * optptr;
struct rtable *rt = (struct rtable*)skb->dst;
- unsigned char *raw = skb->nh.raw;
+ unsigned char *raw = skb_network_header(skb);
if (opt->rr_needaddr) {
optptr = (unsigned char *)raw + opt->rr;
@@ -609,7 +609,7 @@ int ip_options_rcv_srr(struct sk_buff *skb)
int srrspace, srrptr;
__be32 nexthop;
struct iphdr *iph = skb->nh.iph;
- unsigned char * optptr = skb->nh.raw + opt->srr;
+ unsigned char *optptr = skb_network_header(skb) + opt->srr;
struct rtable *rt = (struct rtable*)skb->dst;
struct rtable *rt2;
int err;