linux-kernel - Re: [PATCH 2/3] driver: core: add security labels to devtmpfs

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Message-ID: <20150605102027.GC3802@kroah.com>
Date:	Fri, 5 Jun 2015 19:20:27 +0900
From:	'Greg Kroah-Hartman' <gregkh@...uxfoundation.org>
To:	Namjae Jeon <namjae.jeon@...sung.com>
Cc:	'Kay Sievers' <kay@...y.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] driver: core: add security labels to devtmpfs

On Fri, Jun 05, 2015 at 07:10:23PM +0900, Namjae Jeon wrote:
> Add support for setting security labels(e.g. smack or selinux labels) to
> devtmpfs device nodes. In this manner, drivers can specify desired security
> label in their device_type->devnode or class->devnode method.

What driver wants to do this?  And how does it determine the proper
security label from within the kernel?  Isn't that something that only
userspace can know/set properly?

thanks,

greg k-h
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