linux-kernel - Re: [PATCH 2/3] CRED: Split the task security data and move part of it into struct cred

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Message-ID: <15093.1190309596@redhat.com>
Date:	Thu, 20 Sep 2007 18:33:16 +0100
From:	David Howells <dhowells@...hat.com>
To:	unlisted-recipients:; (no To-header on input)
Cc:	dhowells@...hat.com, casey@...aufler-ca.com, viro@....linux.org.uk,
	hch@...radead.org, Trond.Myklebust@...app.com, sds@...ho.nsa.gov,
	linux-kernel@...r.kernel.org, selinux@...ho.nsa.gov,
	linux-security-module@...r.kernel.org
Subject: Re: [PATCH 2/3] CRED: Split the task security data and move part of it into struct cred

David Howells <dhowells@...hat.com> wrote:

> > So it sounds like what you'd be happiest with would be a separate task
> > struct hand crafted to he the right "object" and "subject" attributes.

Actually, that whilst that is sort of feasible for CacheFiles[*], it is not
really feasible for NFSd.  NFSd possesses a set of daemons that have a
standard objective context and substitute a lot of different subjective
contexts as they perform VFS operations on behalf of remote clients.

  [*] But in practice quite icky from other points of view.

David
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