linux-kernel - Re: A Plumber???s Wish List for Linux

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Message-ID: <20111012205147.GA3173@tango.0pointer.de>
Date:	Wed, 12 Oct 2011 22:51:47 +0200
From:	Lennart Poettering <mzxreary@...inter.de>
To:	"Andrew G. Morgan" <morgan@...nel.org>
Cc:	"Serge E. Hallyn" <serge@...lyn.com>,
	Kay Sievers <kay.sievers@...y.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	linux-kernel@...r.kernel.org, harald@...hat.com, david@...ar.dk,
	greg@...ah.com, KaiGai Kohei <kaigai@...gai.gr.jp>
Subject: Re: A Plumber???s Wish List for Linux

On Tue, 11.10.11 08:49, Andrew G. Morgan (morgan@...nel.org) wrote:

> 
> The benefit of Kai Gai's patch was that it exported the actual names
> of the capabilities rather than have them only stored in libcap.
> 
> It is possible to use CAP_IS_SUPPORTED(cap) (in libcap-2.21) to figure
> out the maximum capability supported by the running kernel.
> 
>   https://sites.google.com/site/fullycapable/release-notes-for-libcap

Oh, hmm, interesting. I have now changed my code to make use of this,
but I can't say it's pretty, because I basically have to search linearly
for the highest capability supported if that's what I want to know.

So, I guess this solves the problem for now, but I'd still like to see a
proper API for this.

Anyway, thanks for the pointer,

Lennart

-- 
Lennart Poettering - Red Hat, Inc.
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