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[SK_BUFF]: Use skb_reset_network_header after skb_push 

Some more cases where skb->nh.iph was being set that were converted
to using skb_reset_network_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 2007-03-10 19:40:39 -03:00 committed by David S. Miller
parent 04b964dbad
commit 8856dfa3e9
2 changed files with 12 additions and 11 deletions
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14
net/ipv4/ip_output.c
View File

@ -125,11 +125,9 @@ int ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk,
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;
@ -143,7 +141,6 @@ int ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk,
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;
@ -333,7 +330,9 @@ packet_routed:
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)
@ -344,7 +343,6 @@ packet_routed:
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) {

9
net/ipv4/ipmr.c
View File

@ -1093,7 +1093,12 @@ static struct notifier_block ip_mr_notifier={
static void ip_encap(struct sk_buff *skb, __be32 saddr, __be32 daddr)
{
struct iphdr *iph = (struct iphdr *)skb_push(skb,sizeof(struct iphdr));
struct iphdr *iph;
skb_push(skb, sizeof(struct iphdr));
skb->h.ipiph = skb->nh.iph;
skb_reset_network_header(skb);
iph = skb->nh.iph;
iph->version = 4;
iph->tos = skb->nh.iph->tos;
@ -1107,8 +1112,6 @@ static void ip_encap(struct sk_buff *skb, __be32 saddr, __be32 daddr)
ip_select_ident(iph, skb->dst, NULL);
ip_send_check(iph);
skb->h.ipiph = skb->nh.iph;
skb->nh.iph = iph;
memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
nf_reset(skb);
}