linux-kernel - Re: [PATCH 2/2] tun: socket filter support

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Message-Id: <201002151645.01410.arnd@arndb.de>
Date:	Mon, 15 Feb 2010 16:45:01 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Patrick McHardy <kaber@...sh.net>
Cc:	"Michael S. Tsirkin" <mst@...hat.com>,
	"David S. Miller" <davem@...emloft.net>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	Paul Moore <paul.moore@...com>,
	David Woodhouse <David.Woodhouse@...el.com>,
	Sridhar Samudrala <sri@...ibm.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] tun: socket filter support

On Monday 15 February 2010, Patrick McHardy wrote:
> I'm not sure how the tun socket is exposed, but won't the regular
> SO_ATTACH_FILTER/SO_DETACH_FILTER setsockopts already work for
> tun sockets?

The tun socket is not exposed at all, it's an implementation detail
of the tun/tap driver, which only has a chardev interface with
ioctl methods.

	Arnd
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