/* dev_loopback_xmit for use with netfilter. */
static int ip_dev_loopback_xmit(struct sk_buff *newskb)
{
- newskb->mac.raw = newskb->data;
- __skb_pull(newskb, newskb->nh.raw - newskb->data);
+ skb_reset_mac_header(newskb);
+ __skb_pull(newskb, skb_network_offset(newskb));
newskb->pkt_type = PACKET_LOOPBACK;
newskb->ip_summed = CHECKSUM_UNNECESSARY;
BUG_TRAP(newskb->dst);
struct iphdr *iph;
/* Build the IP header. */
- if (opt)
- iph=(struct iphdr *)skb_push(skb,sizeof(struct iphdr) + opt->optlen);
- else
- iph=(struct iphdr *)skb_push(skb,sizeof(struct iphdr));
-
+ skb_push(skb, sizeof(struct iphdr) + (opt ? opt->optlen : 0));
+ skb_reset_network_header(skb);
+ iph = skb->nh.iph;
iph->version = 4;
iph->ihl = 5;
iph->tos = inet->tos;
iph->protocol = sk->sk_protocol;
iph->tot_len = htons(skb->len);
ip_select_ident(iph, &rt->u.dst, sk);
- skb->nh.iph = iph;
if (opt && opt->optlen) {
iph->ihl += opt->optlen>>2;
goto no_route;
/* OK, we know where to send it, allocate and build IP header. */
- iph = (struct iphdr *) skb_push(skb, sizeof(struct iphdr) + (opt ? opt->optlen : 0));
+ skb_push(skb, sizeof(struct iphdr) + (opt ? opt->optlen : 0));
+ skb_reset_network_header(skb);
+ iph = skb->nh.iph;
*((__be16 *)iph) = htons((4 << 12) | (5 << 8) | (inet->tos & 0xff));
iph->tot_len = htons(skb->len);
if (ip_dont_fragment(sk, &rt->u.dst) && !ipfragok)
iph->protocol = sk->sk_protocol;
iph->saddr = rt->rt_src;
iph->daddr = rt->rt_dst;
- skb->nh.iph = iph;
/* Transport layer set skb->h.foo itself. */
if (opt && opt->optlen) {
if (frag) {
frag->ip_summed = CHECKSUM_NONE;
frag->h.raw = frag->data;
- frag->nh.raw = __skb_push(frag, hlen);
- memcpy(frag->nh.raw, iph, hlen);
+ __skb_push(frag, hlen);
+ skb_reset_network_header(frag);
+ memcpy(skb_network_header(frag), iph, hlen);
iph = frag->nh.iph;
iph->tot_len = htons(frag->len);
ip_copy_metadata(frag, skb);
* Keep copying data until we run out.
*/
- while(left > 0) {
+ while (left > 0) {
len = left;
/* IF: it doesn't fit, use 'mtu' - the data space left */
if (len > mtu)
ip_copy_metadata(skb2, skb);
skb_reserve(skb2, ll_rs);
skb_put(skb2, len + hlen);
- skb2->nh.raw = skb2->data;
+ skb_reset_network_header(skb2);
skb2->h.raw = skb2->data + hlen;
/*
* Copy the packet header into the new buffer.
*/
- memcpy(skb2->nh.raw, skb->data, hlen);
+ memcpy(skb_network_header(skb2), skb->data, hlen);
/*
* Copy a block of the IP datagram.
skb_put(skb,fragheaderlen + transhdrlen);
/* initialize network header pointer */
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
/* initialize protocol header pointer */
skb->h.raw = skb->data + fragheaderlen;
* Find where to start putting bytes.
*/
data = skb_put(skb, fraglen);
- skb->nh.raw = data + exthdrlen;
+ skb_set_network_header(skb, exthdrlen);
+ skb->h.raw = skb->nh.raw + fragheaderlen;
data += fragheaderlen;
- skb->h.raw = data + exthdrlen;
if (fraggap) {
skb->csum = skb_copy_and_csum_bits(
* Find where to start putting bytes.
*/
data = skb_put(skb, fragheaderlen + fraggap);
- skb->nh.iph = iph = (struct iphdr *)data;
+ skb_reset_network_header(skb);
+ iph = skb->nh.iph;
data += fragheaderlen;
skb->h.raw = data;
tail_skb = &(skb_shinfo(skb)->frag_list);
/* move skb->data to ip header from ext header */
- if (skb->data < skb->nh.raw)
- __skb_pull(skb, skb->nh.raw - skb->data);
+ if (skb->data < skb_network_header(skb))
+ __skb_pull(skb, skb_network_offset(skb));
while ((tmp_skb = __skb_dequeue(&sk->sk_write_queue)) != NULL) {
__skb_pull(tmp_skb, skb->h.raw - skb->nh.raw);
*tail_skb = tmp_skb;