lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[SK_BUFF]: Introduce skb_network_header()

Browse Source 
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>
This commit is contained in:
Arnaldo Carvalho de Melo
2007-04-10 20:50:43 -07:00
committed by David S. Miller
parent bbe735e424
commit d56f90a7c9
59 changed files with 258 additions and 185 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
net/ipv4/ip_options.c
View File

@@ -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;