linux-kernel - Re: [PATCH 08/28] SECURITY: Allow kernel services to override LSM settings for task actions [try #2]

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Message-ID: <395440.2938.qm@web36606.mail.mud.yahoo.com>
Date:	Tue, 11 Dec 2007 13:18:12 -0800 (PST)
From:	Casey Schaufler <casey@...aufler-ca.com>
To:	David Howells <dhowells@...hat.com>,
	Stephen Smalley <sds@...ho.nsa.gov>
Cc:	dhowells@...hat.com, Karl MacMillan <kmacmill@...hat.com>,
	viro@....linux.org.uk, hch@...radead.org,
	Trond.Myklebust@...app.com, casey@...aufler-ca.com,
	linux-kernel@...r.kernel.org, selinux@...ho.nsa.gov,
	linux-security-module@...r.kernel.org
Subject: Re: [PATCH 08/28] SECURITY: Allow kernel services to override LSM settings for task actions [try #2]


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

...
> 
> How about I just stick the context in /etc/cachefilesd.conf as a textual
> configuration item and have the daemon pass that as a string to the
> cachefiles
> kernel module, which can then ask LSM if it's valid to set this context as an
> override, given the daemon's own security context?  That seems entirely
> reasonable to me.

Works for Smack. I can't say definitively, but I think it will
work for SELinux. Beyond that and we're into the fuzzy bit of the
LSM.


Casey Schaufler
casey@...aufler-ca.com
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