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Date: Fri, 5 Jun 2015 20:50:45 +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 08:15:55PM +0900, Namjae Jeon wrote: > > 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? > Yes, It is possible by userspace, But This api change will help to set uid/gid > and xattr values easily without need of complex userspace scripts in absence of > udev like helper. If you want to do things like this, use a "complex" userspace script like Android has for their startup (hint, it's just a tiny bash script, nothing "complex" about it at all...) > And security label that decided as per each embedded system will be set by > this api in driver. Exactly how will that happen? I don't see any users of it. greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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