[SK_BUFF]: Introduce skb_network_header()
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>
diff --git a/net/netfilter/xt_TCPMSS.c b/net/netfilter/xt_TCPMSS.c
index db7e38c..afc0c60e 100644
--- a/net/netfilter/xt_TCPMSS.c
+++ b/net/netfilter/xt_TCPMSS.c
@@ -54,7 +54,7 @@
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 @@
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);