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To: Ben Greear <greearb@candelatech.com>
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Subject: Re: How to programatically determine if policy-based routing is compiled into the kernel? 
In-Reply-To: message-id <3A2F3FE7.5CDD0EDA@candelatech.com> 
	 of Thu, Dec 07 00:44:39 2000
Date: Thu, 07 Dec 2000 18:01:27 +1000
From: Tony Nugent <tony@growzone.com.au>
Sender: linux-kernel-owner@vger.kernel.org
X-Mailing-List: linux-kernel@vger.kernel.org

On Thu Dec 07 2000 at 00:44, Ben Greear wrote:

> I have a product that is dependent on policy-based (source routing)
> and would like to be able to scream loudly at install and startup if
> policy-based routing is not enabled in the kernel.
> 
> Is there some way to determine this?  Specifically, I'd love
> a way to find out through the /proc system, but an ioctl or
> similar call would be OK.  I'd even settle for some other tool,
> like 'ip', if I could just figure out what commands to tell it.

Run a command that attempts to use policy-based routing (doing
something "benign" like a listing).  If it fails then good chance
that it isn't compiled in :-)

[ or it may simply mean that the appropriate modules are not loaded,
so beware that one :]

That command would need to be /sbin/ip or /sbin/tc or whatever.

If you want to ferrit out what proc looks like with and without
routing policy enabled, that would be another way to do it.

Cheers
Tony
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