linux-kernel - Re: [tpmdd-devel] [PATCH v2 1/2] tpm2: add session handle context saving and restoring to the space code

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Message-ID: <1485737714.2491.13.camel@HansenPartnership.com>
Date:   Sun, 29 Jan 2017 16:55:14 -0800
From:   James Bottomley <James.Bottomley@...senPartnership.com>
To:     Ken Goldman <kgoldman@...ibm.com>,
        tpmdd-devel@...ts.sourceforge.net
Cc:     linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [tpmdd-devel] [PATCH v2 1/2] tpm2: add session handle context
 saving and restoring to the space code

On Sun, 2017-01-29 at 19:35 -0500, Ken Goldman wrote:
> On 1/27/2017 7:32 PM, James Bottomley wrote:
> > 
> > Sessions are also isolated during each instance of a tpm space. 
> >  This means that spaces shouldn't be able to see each other's 
> > sessions and is enforced by ensuring that a space user may only 
> > refer to sessions handles that are present in their own chip
> > ->session_tbl.  Finally when a space is closed, all the sessions 
> > belonging to it should be flushed so the handles may be re-used by
> > other spaces.
> 
> This should be true for transient objects as well.

It is ... it's just this patch only covers sessions.

James