linux-kernel - Re: Out of tree module using LSM

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Message-ID: <Pine.LNX.4.64.0711291752550.13075@fbirervta.pbzchgretzou.qr>
Date:	Thu, 29 Nov 2007 17:53:33 +0100 (CET)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	Greg KH <greg@...ah.com>
cc:	Jon Masters <jonathan@...masters.org>, Valdis.Kletnieks@...edu,
	Christoph Hellwig <hch@...radead.org>,
	Al Viro <viro@....linux.org.uk>,
	Casey Schaufler <casey@...aufler-ca.com>,
	"Tvrtko A. Ursulin" <tvrtko.ursulin@...hos.com>,
	linux-kernel@...r.kernel.org
Subject: Re: Out of tree module using LSM


On Nov 29 2007 08:47, Greg KH wrote:
>On Thu, Nov 29, 2007 at 11:36:12AM -0500, Jon Masters wrote:
>> On Wed, 2007-11-28 at 17:07 -0800, Greg KH wrote:
>> 
>> > The easiest way is as Al described above, just have the userspace
>> > program that wrote the file to disk, check it then.
>> 
>> But the problem is that this isn't just Samba, this is a countless
>> myriad of different applications. And if one of them doesn't support
>> on-access scanning, then the whole solution isn't worth using.
>
>Ok, which specific applications do they care about?  Last time I asked
>it was still limited to a very small handful, all of which would be
>trivial to add such a hook to.
>
Well, think bash, syscalls. While you can add a plugin to samba "easily",
it seems overkill to do the same for rm, mv, cp, bash.

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