netdev - Re: when having to acquire an SA, ipsec drops the packet

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Date:	Mon, 5 Mar 2007 22:21:20 -0500 (EST)
From:	James Morris <jmorris@...ei.org>
To:	Joy Latten <latten@...tin.ibm.com>
cc:	davem@...emloft.net, herbert@...dor.apana.org.au,
	netdev@...r.kernel.org, paul.moore@...com, vyekkirala@...stedCS.com
Subject: Re: when having to acquire an SA, ipsec drops the packet

On Mon, 5 Mar 2007, Joy Latten wrote:

> 5. Around the time the set of SAs for OUT direction are to be
>    inserted into SAD, I see another ACQUIRE happening.
>    
>    I have not yet figured out where this second ACQUIRE comes from
>    and why it happens. As long as the minimal SA or set of valid outgoing
>    SAs exist in SAD, an ACQUIRE should not happen.

I saw something similar to this some time ago when testing various 
failure modes, and discused it with Herbert.

IIRC, there's a larval SA which is not torn down properly by Racoon once 
the full SA is established, and the larval SA keeps resending until it 
times out.



- James
-- 
James Morris
<jmorris@...ei.org>
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