Date: Wed, 3 Oct 2007 14:06:13 -0700 (PDT)
From: Casey Schaufler <casey@schaufler-ca.com>
Reply-To: casey@schaufler-ca.com
Subject: Re: [PATCH] Version 4 (2.6.23-rc8-mm2) Smack: Simplified Mandatory Access Control Kernel
To: Alan Cox <alan@lxorguk.ukuu.org.uk>, casey@schaufler-ca.com
Cc: Al Viro <viro@ftp.linux.org.uk>, torvalds@osdl.org,
       linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org,
       akpm@osdl.org, paul.moore@hp.com
In-Reply-To: <20071003214045.72b6b9e0@the-village.bc.nu>
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7BIT
Message-ID: <384003.93417.qm@web36611.mail.mud.yahoo.com>
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1162
Lines: 28


--- Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:

> > An embedded system that does not have user logins but that does
> > have applications that require separation, perhaps a moble communication
> > device with application download capability, is just one example
> > where the smack symlink implementation provides the required
> > function without requiring application support.
> 
> I don't see what is such a problem here. For your mobile example you'd
> give the application download side its own /tmp via mount.
> 
> Its actually better this is done in user space as its more flexible that
> way and can be tuned arbitarily to meet interesting or bizarre real world
> cases.

I admit to being impressed by the wide variety of mount options
currently available. In many cases this will be the best approach.
/tmp is a typical use for a smack symlink, but not the only one.


Casey Schaufler
casey@schaufler-ca.com
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/