linux-kernel - Re: [PATCH] EtherIP tunnel driver (RFC 3378)

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Date:	Thu, 14 Sep 2006 10:33:32 +0900
From:	Stephen Hemminger <shemminger@...l.org>
To:	Philip Craig <philipc@...pgear.com>
Cc:	Joerg Roedel <joro-lkml@...g.org>, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, davem@...emloft.net
Subject: Re: [PATCH] EtherIP tunnel driver (RFC 3378)

On Thu, 14 Sep 2006 11:21:22 +1000
Philip Craig <philipc@...pgear.com> wrote:

> Joerg Roedel wrote:
> > +	 To configure tunnels an extra tool is required. You can download
> > +	 it from http://zlug.fh-zwickau.de/~joro/projects/ under the
> > +	 EtherIP section. If unsure, say N.
> 
> To obtain a list of tunnels, this tool calls SIOCGETTUNNEL
> (SIOCDEVPRIVATE + 0) for every device in /proc/net/dev. I don't think
> this is safe, but I don't have a solution for you.
> 
> Is there a reason why you have a separate tool rather than modifying
> iproute2?
> 
> I don't know if you are aware of this older etherip patch by Lennert
> Buytenhek: http://www.wantstofly.org/~buytenh/etherip/

SIOCDEVPRIVATE usage makes it hard to do 32 bit compatibility layer.
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