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From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
To: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Ken Goldman <kgoldman@us.ibm.com>,
	greg@enjellic.com, linux-kernel@vger.kernel.org,
	linux-security-module@vger.kernel.org,
	tpmdd-devel@lists.sourceforge.net
Subject: Re: [tpmdd-devel] [PATCH RFC 0/4] RFC: in-kernel resource manager
Date: Wed, 11 Jan 2017 12:04:28 -0700	[thread overview]
Message-ID: <20170111190428.GA17873@obsidianresearch.com> (raw)
In-Reply-To: <1484159157.2509.23.camel@HansenPartnership.com>

On Wed, Jan 11, 2017 at 10:25:57AM -0800, James Bottomley wrote:

> Right, but we're going around in circles.  I'm currently researching
> what it would take to be daemonless, so an ioctl which requires an
> access broker daemon would obviously be something I'd object to.

Well, when we figure out a security model that works for that and can
be implemented in the kernel then lets add the new cdev.

But that is *explicitly* not what Jarkko is doing, no reason to jump
the gun.

> Basically, though, I think you can do both: we can add an ioctl and the
> differing device hooks.  I just think for that case RAW vs RM would be
> redundant.

Right, some future new cdev would only support ioctl and only the RM
path, but for priv use having both concurrently available makes sense
as a userspace broker producing a full RM will need to using both paths.

Jason

  reply	other threads:[~2017-01-11 19:04 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <kgoldman@us.ibm.com>
2017-01-04 16:12 ` [tpmdd-devel] [PATCH RFC 0/4] RFC: in-kernel resource manager Dr. Greg Wettstein
     [not found]   ` <201701041612.v04GCfPK031525-DHO+NtfOqB5PEDpkEIzg7wC/G2K4zDHf@public.gmane.org>
2017-01-04 18:37     ` Kenneth Goldman
2017-01-09 23:16   ` [tpmdd-devel] " Jarkko Sakkinen
2017-01-10 19:29     ` Ken Goldman
2017-01-11 11:36       ` Jarkko Sakkinen
2017-01-10 20:05     ` Jason Gunthorpe
     [not found]       ` <20170110200558.GA5102-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-01-11 10:00         ` Andreas Fuchs
     [not found]           ` <ee6c1e48-e21f-d05e-0939-473001224aba-iXjGqz/onsDSyEMIgutvibNAH6kLmebB@public.gmane.org>
2017-01-11 15:59             ` Ken Goldman
2017-01-11 18:03             ` Jason Gunthorpe
     [not found]               ` <20170111180328.GB22783-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-01-11 18:27                 ` Stefan Berger
2017-01-11 19:18                   ` [tpmdd-devel] " Jason Gunthorpe
2017-01-11 11:34         ` Jarkko Sakkinen
     [not found]           ` <20170111113416.4h6ucm5y3hjjnfhv-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-01-11 15:39             ` James Bottomley
     [not found]               ` <1484149193.2509.12.camel-d9PhHud1JfjCXq6kfMZ53/egYHeGw8Jk@public.gmane.org>
2017-01-11 17:56                 ` Jason Gunthorpe
2017-01-11 18:25                   ` [tpmdd-devel] " James Bottomley
2017-01-11 19:04                     ` Jason Gunthorpe [this message]
2017-01-02 13:22 Jarkko Sakkinen
2017-01-02 16:36 ` [tpmdd-devel] " James Bottomley
2017-01-02 19:33   ` Jarkko Sakkinen
2017-01-02 21:40     ` James Bottomley
2017-01-03  5:26       ` [tpmdd-devel] " James Bottomley
2017-01-04  5:47         ` Andy Lutomirski
2017-01-04 13:00           ` Jarkko Sakkinen
2017-01-03 13:51       ` Jarkko Sakkinen
2017-01-03 16:36         ` James Bottomley
2017-01-03 18:40           ` [tpmdd-devel] " Jarkko Sakkinen
2017-01-03 21:47           ` Jason Gunthorpe
2017-01-03 22:39             ` James Bottomley
2017-01-04  0:17               ` [tpmdd-devel] " Jason Gunthorpe
2017-01-03 21:32   ` Jason Gunthorpe
2017-01-03 22:03     ` [tpmdd-devel] " James Bottomley
2017-01-05 15:52 ` Fuchs, Andreas
2017-01-05 17:27   ` Jason Gunthorpe
2017-01-05 18:33     ` [tpmdd-devel] " James Bottomley
2017-01-05 19:20       ` Jason Gunthorpe
2017-01-05 19:55         ` [tpmdd-devel] " James Bottomley
2017-01-05 22:21           ` Jason Gunthorpe
2017-01-05 22:58             ` James Bottomley
2017-01-05 23:50               ` Jason Gunthorpe
2017-01-06  0:36                 ` [tpmdd-devel] " James Bottomley
2017-01-06 19:02                   ` Jason Gunthorpe
2017-01-09 22:39   ` Jarkko Sakkinen
2017-01-11 10:03     ` Andreas Fuchs

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