From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net-next 3/9] gue: Changes to ip_tunnel to support
 Generic UDP Encapsulation
Date: Thu, 17 Jul 2014 14:53:45 -0700 (PDT)
Message-ID: <20140717.145345.1627726281054820171.davem@davemloft.net>
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From: Tom Herbert <therbert@google.com>
Date: Wed, 16 Jul 2014 21:14:44 -0700 (PDT)

> This patch changes IP tunnel to support (secondary) encapsulation,
> Generic UDP Encapsulation. Changes include:
> 
> 1) Adding tun_hlen as the tunnel header length, encap_hlen as the
> encapsulation header length (GUE), and hlen becomes the grand total
> of these.
> 2) Added generic function to handle IOCTLs
> 3) Added IOCTLs to setup or remove encapsulation. This includes
> uapi to configure encapsulation on a tunnel.
> 4) Support to perform GUE encapsulation in ip_tunnel_xmit.
> 
> Signed-off-by: Tom Herbert <therbert@google.com>

Please extend the netlink interface for creating IP tunnels rather
than adding things to the the deprecated ioctl interface.