linux-kernel - Re: [2.6 patch] remove securebits

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Message-ID: <46CFA6F2.9030209@kernel.org>
Date:	Fri, 24 Aug 2007 20:50:10 -0700
From:	Andrew Morgan <morgan@...nel.org>
To:	"Serge E. Hallyn" <serge@...lyn.com>, Adrian Bunk <bunk@...nel.org>
CC:	chrisw@...s-sol.org, linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org
Subject: Re: [2.6 patch] remove securebits

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FWIW, in the mm kernel, I've actually already removed them when one
configures without capabilities.

http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.23-rc3/2.6.23-rc3-mm1/broken-out/v3-file-capabilities-alter-behavior-of-cap_setpcap.patch

Other than writing a custom module, so far as I can tell, there is/was
no way to set them anyway.

I'd obviously prefer to wait for the mm-merge process to complete and
minimize the churn in this area, but I basically agree that the bits as
implemented are pretty useless in their current form. In a per-process
mode (with filesystem capability support) they are much more useful...

Cheers

Andrew

Serge E. Hallyn wrote:
> Quoting Adrian Bunk (bunk@...nel.org):
>> It seems that since it was added in kernel 2.2.0 (sic) securebits 
>> was never used.
>>
>> This patch therefore removes it.
> 
> Actually IIUC Andrew Morgan had plans of making securebits per-process,
> which would make them far more usable.
> 
> Now maybe he'd just as soon start with a clean slate...  Andrew?
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