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);
return 0;
}
- sptr = skb->nh.raw;
+ sptr = skb_network_header(skb);
dptr = dopt->__data;
if (skb->dst)
daddr = ((struct rtable*)skb->dst)->rt_spec_dst;
else
- daddr = skb->nh.iph->daddr;
+ daddr = ip_hdr(skb)->daddr;
if (sopt->rr) {
optlen = sptr[sopt->rr+1];
__be32 addr;
memcpy(&addr, sptr+soffset-1, 4);
- if (inet_addr_type(addr) != RTN_LOCAL) {
+ if (inet_addr_type(&init_net, addr) != RTN_LOCAL) {
dopt->ts_needtime = 1;
soffset += 8;
}
/*
* RFC1812 requires to fix illegal source routes.
*/
- if (memcmp(&skb->nh.iph->saddr, &start[soffset+3], 4) == 0)
+ if (memcmp(&ip_hdr(skb)->saddr,
+ &start[soffset + 3], 4) == 0)
doffset -= 4;
}
if (doffset > 3) {
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;
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;
} else {
- optptr = opt->is_data ? opt->__data : (unsigned char*)&(skb->nh.iph[1]);
+ optptr = opt->is_data ? opt->__data :
+ (unsigned char *)&(ip_hdr(skb)[1]);
iph = optptr - sizeof(struct iphdr);
}
{
__be32 addr;
memcpy(&addr, &optptr[optptr[2]-1], 4);
- if (inet_addr_type(addr) == RTN_UNICAST)
+ if (inet_addr_type(&init_net, addr) == RTN_UNICAST)
break;
if (skb)
timeptr = (__be32*)&optptr[optptr[2]+3];
static struct ip_options *ip_options_get_alloc(const int optlen)
{
- struct ip_options *opt = kmalloc(sizeof(*opt) + ((optlen + 3) & ~3),
- GFP_KERNEL);
- if (opt)
- memset(opt, 0, sizeof(*opt));
- return opt;
+ return kzalloc(sizeof(struct ip_options) + ((optlen + 3) & ~3),
+ GFP_KERNEL);
}
static int ip_options_get_finish(struct ip_options **optp,
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;
if (srrptr + 3 <= srrspace) {
opt->is_changed = 1;
ip_rt_get_source(&optptr[srrptr-1], rt);
- skb->nh.iph->daddr = rt->rt_dst;
+ ip_hdr(skb)->daddr = rt->rt_dst;
optptr[2] = srrptr+4;
} else if (net_ratelimit())
printk(KERN_CRIT "ip_forward(): Argh! Destination lost!\n");
}
if (opt->is_changed) {
opt->is_changed = 0;
- ip_send_check(skb->nh.iph);
+ ip_send_check(ip_hdr(skb));
}
}
struct ip_options *opt = &(IPCB(skb)->opt);
int srrspace, srrptr;
__be32 nexthop;
- struct iphdr *iph = skb->nh.iph;
- unsigned char * optptr = skb->nh.raw + opt->srr;
+ struct iphdr *iph = ip_hdr(skb);
+ unsigned char *optptr = skb_network_header(skb) + opt->srr;
struct rtable *rt = (struct rtable*)skb->dst;
struct rtable *rt2;
int err;