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Date:   Thu, 16 May 2019 17:24:33 +1000 (AEST)
From:   James Morris <jmorris@namei.org>
To:     Andy Lutomirski <luto@kernel.org>
cc:     Sean Christopherson <sean.j.christopherson@intel.com>,
        "Serge E. Hallyn" <serge@hallyn.com>,
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Subject: Re: SGX vs LSM (Re: [PATCH v20 00/28] Intel SGX1 support)
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On Wed, 15 May 2019, Andy Lutomirski wrote:

> On Wed, May 15, 2019 at 3:46 PM James Morris <jmorris@namei.org> wrote:
> >
> > You could try user.sigstruct, which does not require any privs.
> >
> 
> I don't think I understand your proposal.  What file would this
> attribute be on?  What would consume it?

It would be on the enclave file, so you keep the sigstruct bound to it, 
rather than needing a separate file to manage.  It would simplify any LSM 
policy check.

It would be consumed by (I guess) the SGX_INIT_THE_ENCLAVE ioctl in your 
example, instead of having a 2nd fd.


-- 
James Morris
<jmorris@namei.org>