netdev - Re: [PATCH] net: Add etun driver

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Date:	Wed, 11 Apr 2007 09:16:06 -0700
From:	Stephen Hemminger <shemminger@...ux-foundation.org>
To:	Johannes Berg <johannes@...solutions.net>
Cc:	Patrick McHardy <kaber@...sh.net>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	David Miller <davem@...emloft.net>, akpm@...ux-foundation.org,
	dim@...nvz.org, netdev@...r.kernel.org, jgarzik@...ox.com,
	containers@...ts.osdl.org, kuznet@....inr.ac.ru,
	greearb@...delatech.com
Subject: Re: [PATCH] net: Add etun driver

On Tue, 10 Apr 2007 23:16:59 +0200
Johannes Berg <johannes@...solutions.net> wrote:

> On Tue, 2007-04-10 at 02:06 +0200, Patrick McHardy wrote:
> 
> > Same way as the current RTM_SETLINK message works, but with creating
> > a new link in advance. It works fine in other subsystems, so I don't
> > see why it would in this case as well. Some subsystems do it in an
> > atomic fashion (network schedulers for example), some first create
> > the object, then configure it (network classifiers in the non-compat
> > cases). In the network device case I suppose the later should work
> > fine since a device needs to be set UP in a second action before
> > it really does anything.
> 
> Looking at br_netlink.c it seems that this sort of contradicts why
> generic netlink was done, now all the sudden everything that wants to
> create new links need its own netlink protocol number, no?
> 
> johannes

Bridging is different since there was already a bridge protocol number assigned,
there was no point in doing generic netlink.


---
Stephen Hemminger <shemminger@...ux-foundation.org>
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