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From: Jarkko Sakkinen <>
To: James Morris <>
Subject: Re: Some LSM and SGX remarks before parting of for two weeks
Date: Fri, 12 Jul 2019 08:14:49 +0300
Message-ID: <> (raw)
In-Reply-To: <>

On Fri, Jul 12, 2019 at 01:12:23PM +1000, James Morris wrote:
> On Fri, 12 Jul 2019, Jarkko Sakkinen wrote:
> > Before going to a two week vacation (sending v21 today), I'll make some
> > remarks on SGX and LSM's:
> > 
> > 1. Currently all patch sets proposing LSM changes are missing a problem
> >    statement and describe a solution to an undescribed problem.
> > 2. When speaking of SELinux I haven't seen any draft's on how would
> >    define a policy module with the new constructs. Does not have to
> >    be a full policy modules but more like snippets demosntrating that
> >    "this would work".
> > 3. All the SELinux discussion is centered on type based policies.
> >    Potentially one could isolate enclaves with some UBAC or RBAC
> >    based model. That could be good first step and might not even
> >    require LSM changes.
> Unless I misunderstand what you mean here, RBAC and UBAC in SELinux still 
> require LSM hooks, and are typically integrated with Type Enforcement.

OK, I was thinking something like with normal DAC just to have SGID
for enclaves. Just learning basic SELinux concepts. Still quite alien
world to me.


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Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-12  2:10 Jarkko Sakkinen
2019-07-12  3:12 ` James Morris
2019-07-12  5:14   ` Jarkko Sakkinen [this message]

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