linux-kernel - Re: [PATCH] Security/sysfs: Enable security xattrs to be set on sysfs files, directories, and symlinks.

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Message-Id: <1247148712.4398.160.camel@localhost>
Date:	Thu, 09 Jul 2009 10:11:52 -0400
From:	"David P. Quigley" <dpquigl@...ho.nsa.gov>
To:	Casey Schaufler <casey@...aufler-ca.com>
Cc:	jmorris@...ei.org, gregkh@...e.de, sds@...ho.nsa.gov,
	linux-kernel@...r.kernel.org, linux-security-module@...r.kernel.org
Subject: Re: [PATCH] Security/sysfs: Enable security xattrs to be set on
 sysfs files, directories, and symlinks.

On Wed, 2009-07-08 at 18:44 -0700, Casey Schaufler wrote:

> An LSM must not be beholden to exposing transient internal
> representations of security data to userspace, which is what
> you're doing here. An LSM gets to decide what the security
> information it maintains looks like by defining a security blob.

Something worth saying is that the sysfs_dirent is already a transient
internal represenation. 


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