netdev - Re: kenel level packet capturing

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Message-ID: <20111019123025.GA9320@netboy.at.omicron.at>
Date:	Wed, 19 Oct 2011 14:30:25 +0200
From:	Richard Cochran <richardcochran@...il.com>
To:	Ajith Adapa <adapa.ajith@...il.com>
Cc:	David Miller <davem@...emloft.net>, raviraj.j1991@...il.com,
	netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
	netfilter@...r.kernel.org
Subject: Re: kenel level packet capturing

On Wed, Oct 19, 2011 at 02:22:35PM +0530, Ajith Adapa wrote:
> Yeah you are right David. But ..
> 
> For a newbie who just know more about linux userspace level need to
> know starting steps like where to start from and flow of packet might
> be confusing because of the level of abstraction being used. I guess
> it might take some time until you are really serious about making
> hands dirty :)

For working with or just reading kernel sources I recommend getting to
know the cscope tool. Do a "make cscope" and then use one of the front
end browsers.

If you use emacs, then you really should have this set

	; When working on the kernel
	(setq cscope-do-not-update-database t)

otherwise it tries to re-index after every search.

HTH,
Richard


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