netdev - RE: xfrm selector generating IKE

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Date:	Tue, 24 Feb 2009 18:30:41 -0800
From:	"Paul Moore" <paul.moore@...trify.com>
To:	"Herbert Xu" <herbert@...dor.apana.org.au>
Cc:	<kaber@...sh.net>, <davem@...emloft.net>, <netdev@...r.kernel.org>
Subject: RE: xfrm selector generating IKE

could u suggest a numbering for my 4 rules - as I said , no combination
I have tried works

// for outbound connections
subnet -> subnet[21] out
subnet[21] -> subnet in
// for inbound connections
subnet[21] -> subnet out
subnet -> subnet[21] in

-----Original Message-----
From: Herbert Xu [mailto:herbert@...dor.apana.org.au] 
Sent: Tuesday, February 24, 2009 6:28 PM
To: Paul Moore
Cc: kaber@...sh.net; davem@...emloft.net; netdev@...r.kernel.org
Subject: Re: xfrm selector generating IKE

On Tue, Feb 24, 2009 at 06:07:06PM -0800, Paul Moore wrote:
> You seem to be saying that that if I explicitly set the policy reqids
> that it should work. 
> 
> I had experimented with that a lot 
> 
> The problem is that I cannot find a good combination of reqids 

It's very simple, you want each equivalent class of SAs (i.e.,
SAs where any one can replace the other) to be assigned a unique
reqid.

The Openswan algorithm simply assigns an ID to each policy (or
connection as it stores them internally), and then uses that ID
as the reqid.

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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