[Bridge] Simple list of tun devices?

[Bridge] Simple list of tun devices?

[Michael Bueker]

Hello,

I'm using acustom script to bring up and take down my bridge. For that, 
I need to know the bridge devices that are currently active for use in a 
bash for-loop.
I reckon that I could grep and sed the output of ifconfig or brctl show, 
but that seems very kludgy to me. The tun* devices do not appear in /dev 
and neither did a grep in all of /proc return any useful result.

So, is there a simple way to tell which tun devices are up at any moment?

Cheers,
~Mik

-- 
Was passiert, wenn man einem Therapiepatienten ein asymmetrisches 
Mandala zum Ausmalen gibt? Wird er dann erst recht wahnsinnig?

Re: [Bridge] Simple list of tun devices?

[Stephen Hemminger]

On Mon, 07 Nov 2005 21:16:28 +0100
Michael Bueker <m.bueker@berlin.de> wrote:

> Hello,
> 
> I'm using acustom script to bring up and take down my bridge. For that, 
> I need to know the bridge devices that are currently active for use in a 
> bash for-loop.
> I reckon that I could grep and sed the output of ifconfig or brctl show, 
> but that seems very kludgy to me. The tun* devices do not appear in /dev 
> and neither did a grep in all of /proc return any useful result.
> 
> So, is there a simple way to tell which tun devices are up at any moment?
> 
> Cheers,
> ~Mik

you could look at /sys/class/net/*/brport


-- 
Stephen Hemminger <shemminger@osdl.org>
OSDL http://developer.osdl.org/~shemminger