From mboxrd@z Thu Jan  1 00:00:00 1970
From: Arif Hossain <etothepowerpi@gmail.com>
Subject: skb_* function to get pointer to udp payload
Date: Tue, 07 Aug 2012 19:42:41 +0600
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Hi,

I need to get a pointer to udp payload in my xtables module in following
scenario:

1. From NF_INET_LOCAL_PREROUTING hook. As Transport headers are not yet
initialized, may be i need to play with offsets like
skb_header_pointer(skb, par->thoff,....). Not sure if its correct to use
skb_header_pointer this way though.

2. From NF_INET_LOCAL_OUT. This time as transport fields are already
initialized, i guess there is a direct function to get pointer to udp
payload.

Thanks in advance. 
-- 
Cheers

aft
aftnix@gmail.com