how to use sk_buff in netfilter

[jywang]

when i perform the command 'make htmldocs', a error  occur as below:

Error(fs/dcache.c:687): cannot understand prototype: 'DENTRY_UNUSED_THRESHOLD 30000 '

how to fix it.





----- Original Message ----- 
From: "Henrik Nordstrom" <hno at marasystems.com>
To: "jywang" <jywang at cnic.cn>
Cc: "KOVACS Krisztian" <hidden at balabit.hu>; <netfilter at lists.netfilter.org>
Sent: Monday, October 31, 2005 3:00 PM
Subject: Re: how to use sk_buff in netfilter


> On Mon, 31 Oct 2005, jywang wrote:
> 
> > this so good a tutorial of sk_buff.
> >
> > and, what is about the struct sock and other core structures?
> 
> most are not allowed to be used from netfilter hooks...
> 
> but many are documented in the kernel docbook documentation received with 
> the kernel sources ("make doc" in the kernel tree to build them..)
> 
> Regards
> Henrik
>