[SK_BUFF]: Introduce ipv6_hdr(), remove skb->nh.ipv6h
Now the skb->nh union has just one member, .raw, i.e. it is just like the
skb->mac union, strange, no? I'm just leaving it like that till the transport
layer is done with, when we'll rename skb->mac.raw to skb->mac_header (or
->mac_header_offset?), ditto for ->{h,nh}.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index bd25825..1900c62 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -107,13 +107,13 @@
skb->protocol = htons(ETH_P_IPV6);
skb->dev = dev;
- if (ipv6_addr_is_multicast(&skb->nh.ipv6h->daddr)) {
+ if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr)) {
struct ipv6_pinfo* np = skb->sk ? inet6_sk(skb->sk) : NULL;
struct inet6_dev *idev = ip6_dst_idev(skb->dst);
if (!(dev->flags & IFF_LOOPBACK) && (!np || np->mc_loop) &&
- ipv6_chk_mcast_addr(dev, &skb->nh.ipv6h->daddr,
- &skb->nh.ipv6h->saddr)) {
+ ipv6_chk_mcast_addr(dev, &ipv6_hdr(skb)->daddr,
+ &ipv6_hdr(skb)->saddr)) {
struct sk_buff *newskb = skb_clone(skb, GFP_ATOMIC);
/* Do not check for IFF_ALLMULTI; multicast routing
@@ -124,7 +124,7 @@
newskb->dev,
ip6_dev_loopback_xmit);
- if (skb->nh.ipv6h->hop_limit == 0) {
+ if (ipv6_hdr(skb)->hop_limit == 0) {
IP6_INC_STATS(idev, IPSTATS_MIB_OUTDISCARDS);
kfree_skb(skb);
return 0;
@@ -193,7 +193,7 @@
skb_push(skb, sizeof(struct ipv6hdr));
skb_reset_network_header(skb);
- hdr = skb->nh.ipv6h;
+ hdr = ipv6_hdr(skb);
/*
* Fill in the IPv6 header
@@ -263,8 +263,8 @@
totlen = len + sizeof(struct ipv6hdr);
- hdr = (struct ipv6hdr *) skb_put(skb, sizeof(struct ipv6hdr));
- skb->nh.ipv6h = hdr;
+ skb->nh.raw = skb_put(skb, sizeof(struct ipv6hdr));
+ hdr = ipv6_hdr(skb);
*(__be32*)hdr = htonl(0x60000000);
@@ -309,7 +309,7 @@
static int ip6_forward_proxy_check(struct sk_buff *skb)
{
- struct ipv6hdr *hdr = skb->nh.ipv6h;
+ struct ipv6hdr *hdr = ipv6_hdr(skb);
u8 nexthdr = hdr->nexthdr;
int offset;
@@ -366,7 +366,7 @@
int ip6_forward(struct sk_buff *skb)
{
struct dst_entry *dst = skb->dst;
- struct ipv6hdr *hdr = skb->nh.ipv6h;
+ struct ipv6hdr *hdr = ipv6_hdr(skb);
struct inet6_skb_parm *opt = IP6CB(skb);
if (ipv6_devconf.forwarding == 0)
@@ -475,7 +475,7 @@
goto drop;
}
- hdr = skb->nh.ipv6h;
+ hdr = ipv6_hdr(skb);
/* Mangling hops number delayed to point after skb COW */
@@ -527,10 +527,11 @@
int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
{
u16 offset = sizeof(struct ipv6hdr);
- struct ipv6_opt_hdr *exthdr = (struct ipv6_opt_hdr*)(skb->nh.ipv6h + 1);
+ struct ipv6_opt_hdr *exthdr =
+ (struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1);
unsigned int packet_len = skb->tail - skb_network_header(skb);
int found_rhdr = 0;
- *nexthdr = &skb->nh.ipv6h->nexthdr;
+ *nexthdr = &ipv6_hdr(skb)->nexthdr;
while (offset + 1 <= packet_len) {
@@ -643,7 +644,8 @@
first_len = skb_pagelen(skb);
skb->data_len = first_len - skb_headlen(skb);
skb->len = first_len;
- skb->nh.ipv6h->payload_len = htons(first_len - sizeof(struct ipv6hdr));
+ ipv6_hdr(skb)->payload_len = htons(first_len -
+ sizeof(struct ipv6hdr));
dst_hold(&rt->u.dst);
@@ -665,7 +667,9 @@
if (frag->next != NULL)
fh->frag_off |= htons(IP6_MF);
fh->identification = frag_id;
- frag->nh.ipv6h->payload_len = htons(frag->len - sizeof(struct ipv6hdr));
+ ipv6_hdr(frag)->payload_len =
+ htons(frag->len -
+ sizeof(struct ipv6hdr));
ip6_copy_metadata(frag, skb);
}
@@ -779,7 +783,8 @@
fh->frag_off = htons(offset);
if (left > 0)
fh->frag_off |= htons(IP6_MF);
- frag->nh.ipv6h->payload_len = htons(frag->len - sizeof(struct ipv6hdr));
+ ipv6_hdr(frag)->payload_len = htons(frag->len -
+ sizeof(struct ipv6hdr));
ptr += len;
offset += len;
@@ -1355,7 +1360,7 @@
skb_push(skb, sizeof(struct ipv6hdr));
skb_reset_network_header(skb);
- hdr = skb->nh.ipv6h;
+ hdr = ipv6_hdr(skb);
*(__be32*)hdr = fl->fl6_flowlabel |
htonl(0x60000000 | ((int)np->cork.tclass << 20));