From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pablo Neira <pablo@eurodev.net>
Subject: Re: NF fields in sk_buff
Date: Wed, 04 Feb 2004 14:50:09 +0100
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Hi emmanuel,

Emmanuel Guiton wrote:

> Hi!
>
> I want to send a "built-by-hand" packet on the local hook. In the 
> sk_buff structure, there is two fields, nfmark and nfcache, which  I 
> don't really understand. Can someone give me a quick briefing on these 
> two fields?
> Quick search with google made me feel that I don't need them anyway 
> and that I can leave them blank. Right?


I know something about nfcache, I think that it's a Rusty's idea to 
improve the performance and avoid that a packet hits all the hooks but 
it wasn't implemented. See netfilter hacking how-to. section 4.5.

I think that you are right, you could leave them blank.

Pablo