ipl2tp: allow setting session interface name

ipl2tp: allow setting session interface name

Hi,

I've attached a trivial patch for iproute2 to allow naming interfaces
created with "ip l2tp add session".

I believe patches should go through the netdev mailing list but this
patch is so small I figured that would just add noise. Hope that's OK.

Originally I thought I would need a bigger patch and was going to take a
stab at implementing something like

ip l2tp add tunnel L2TP_TUNNEL_ARGS
ip link add name NAME  [ LINK_OPTS ] type l2tp L2TP_SESSION_ARGS

(a better interface IMHO) but all the code was there already, all that I
needed to add was option parsing.

Thanks,

João Valverde

From fd8c3b712527d2e959aeabc6f6b71a9910e7be7e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jo=C3=A3o=20Valverde?= <joao.valverde@ist.utl.pt>
Date: Mon, 26 Mar 2012 18:30:56 +0100
Subject: [PATCH] ipl2tp: allow setting session interface name