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[SK_BUFF]: Introduce skb_network_header()

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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
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6
include/net/inet_ecn.h
View file

@ -114,12 +114,14 @@ static inline int INET_ECN_set_ce(struct sk_buff *skb)
{
switch (skb->protocol) {
case __constant_htons(ETH_P_IP):
if (skb->nh.raw + sizeof(struct iphdr) <= skb->tail)
if (skb_network_header(skb) + sizeof(struct iphdr) <=
skb->tail)
return IP_ECN_set_ce(skb->nh.iph);
break;
case __constant_htons(ETH_P_IPV6):
if (skb->nh.raw + sizeof(struct ipv6hdr) <= skb->tail)
if (skb_network_header(skb) + sizeof(struct ipv6hdr) <=
skb->tail)
return IP6_ECN_set_ce(skb->nh.ipv6h);
break;
}