netdev - Re: Re [RFC PATCH 1/2] iproute2: Add libnl support.

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Message-ID: <20100330144012.6ad28c1f@nehalam>
Date:	Tue, 30 Mar 2010 14:40:12 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	James Chapman <jchapman@...alix.com>
Cc:	netdev@...r.kernel.org
Subject: Re: Re [RFC PATCH 1/2] iproute2: Add libnl support.

On Tue, 30 Mar 2010 08:48:42 +0100
James Chapman <jchapman@...alix.com> wrote:

> Stephen Hemminger wrote:
> >> This patch links the ip utility with libnl, which must be separately
> >> installed. This lets new functionality use libnl to implement its
> >> netlink interfaces.
> >>
> >> Package developers will need to add libnl to the iproute2 package
> >> dependencies.
> >> ---
> >>  Makefile |    2 +-
> >>  1 files changed, 1 insertions(+), 1 deletions(-)
> > 
> > No. I don't want to make iproute2 dependent on libnl.
> > It doesn't make sense to have dependency without major need for new
> > functionality.  There are already netlink library routines in iproute2
> 
> True, but libnetlink doesn't provide utility routines for building genl
> interfaces like it does, say, for rtnl. To use libnetlink for this code,
> we'd have to c&p some code from genl/ctrl.c to handle the interface
> family registration, for example. It's all there in libnl already.
> 
> But I understand your reservation about introducing a new library
> dependency. Since the rest of our netlink code uses libnl, I'm leaning
> towards having a separate utility for these commands so we can keep it
> libnl.
> 

Please use extend genl/ctrl.c to handle your lt2pv3 messages.
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