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

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Message-ID: <461A70A5.8060607@trash.net>
Date:	Mon, 09 Apr 2007 18:58:13 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	Johannes Berg <johannes@...solutions.net>
CC:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Stephen Hemminger <shemminger@...ux-foundation.org>,
	Jeff Garzik <jgarzik@...ox.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>,
	Ben Greear <greearb@...delatech.com>,
	Daniel Lezcano <dlezcano@...ibm.com>,
	Dmitry Mishin <dim@...nvz.org>,
	Linux Containers <containers@...ts.osdl.org>
Subject: Re: [PATCH] net: Add etun driver

Johannes Berg wrote:
> On Fri, 2007-04-06 at 20:51 -0600, Eric W. Biederman wrote:
> 
> 
>>The only sysfs attributes that were always available that I could find
>>were module parameters.  A little odd because we can specify them on
>>the kernel command line, or when loading the module in addition to
>>being available at run time.  
>>
>>It gives me a general interface that is usable so long as the module
>>is loaded, and does not depend on the availability of any specific
>>network device.  I will happily use any other interface that gives
>>me the same level of functionality for the roughly the same level
>>of effort.
> 
> 
> Just for consideration, in wireless we currently create virtual network
> devices by having a "add_iface" and "remove_iface" sysfs files below the
> ieee80211 class.


It would be nice if someone would finally come up with a generic
interface based on netlink (RTM_NEWLINK) instead of adding yet
another couple of homegrown interfaces.

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