netdev - Re: tun: add tun_flags, owner, group attributes in sysfs

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Date:	Sat, 09 May 2009 22:54:57 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	dwmw2@...radead.org
Cc:	netdev@...r.kernel.org, markmc@...hat.com
Subject: Re: tun: add tun_flags, owner, group attributes in sysfs

From: David Woodhouse <dwmw2@...radead.org>
Date: Mon, 04 May 2009 11:32:16 +0100

> This patch adds three attribute files in /sys/class/net/$dev/ for tun
> devices; allowing userspace to obtain the information which TUNGETIFF
> offers, and more, but without having to attach to the device in question
> (which may not be possible if it's in use).
> 
> It also fixes a bug which has been present in the TUNGETIFF ioctl since
> its inception, where it would never set IFF_TUN or IFF_TAP according to
> the device type. (Look carefully at the code which I remove from
> tun_get_iff() and how the new tun_flags() helper is subtly different).
> 
> Signed-off-by: David Woodhouse <David.Woodhouse@...el.com>

Applied to net-next-2.6, thanks!
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