netdev - Re: Question regarding linux networking

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Message-ID: <20090610110901.GC2673@ff.dom.local>
Date:	Wed, 10 Jun 2009 11:09:01 +0000
From:	Jarek Poplawski <jarkao2@...il.com>
To:	sampath kumar <sampath.in@...il.com>
Cc:	netdev@...r.kernel.org, acme@...hat.com, nhorman@...driver.com
Subject: Re: Question regarding linux networking

On Wed, Jun 10, 2009 at 06:37:49AM +0000, Jarek Poplawski wrote:
> On Tue, Jun 09, 2009 at 05:50:09PM +0530, sampath kumar wrote:
...
> > I'm trying to use/understand linux networking code. Say for example decnet,
> > phonet etc, in order to register a device we need to send an RTM_NEWADDR msg
> > to the kernel.
> > 
> > do I've to send it from kernel space or user space ? If I check the code of
> > decnet or phonet, each have registered using rtnl_register an addr_doit func
> > after reception of RTM_NEWADDR msg. how do i send this msg and from where ??

You can send it both from kernel and user space. For user space
usage have a look at iproute2 sources. And here is a general
description: http://people.redhat.com/nhorman/papers/netlink.pdf

Jarek P.
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