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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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4
net/netfilter/xt_TCPMSS.c
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@@ -54,7 +54,7 @@ tcpmss_mangle_packet(struct sk_buff **pskb,
return -1;
tcplen = (*pskb)->len - tcphoff;
tcph = (struct tcphdr *)((*pskb)->nh.raw + tcphoff);
tcph = (struct tcphdr *)(skb_network_header(*pskb) + tcphoff);
/* Since it passed flags test in tcp match, we know it is is
not a fragment, and has data >= tcp header length. SYN
@@ -113,7 +113,7 @@ tcpmss_mangle_packet(struct sk_buff **pskb,
return -1;
kfree_skb(*pskb);
*pskb = newskb;
tcph = (struct tcphdr *)((*pskb)->nh.raw + tcphoff);
tcph = (struct tcphdr *)(skb_network_header(*pskb) + tcphoff);
}
skb_put((*pskb), TCPOLEN_MSS);