linux-kernel - Re: [capabilities] Allow normal inheritance for a configurable set of capabilities

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Message-ID: <20150225215022.GE29527@amd>
Date:	Wed, 25 Feb 2015 22:50:22 +0100
From:	Pavel Machek <pavel@....cz>
To:	Serge Hallyn <serge.hallyn@...ntu.com>
Cc:	Casey Schaufler <casey@...aufler-ca.com>,
	Christoph Lameter <cl@...ux.com>,
	Serge Hallyn <serge.hallyn@...onical.com>,
	Andy Lutomirski <luto@...capital.net>,
	Jonathan Corbet <corbet@....net>,
	Aaron Jones <aaronmdjones@...il.com>, Ted Ts'o <tytso@....edu>,
	linux-security-module@...r.kernel.org,
	linux-kernel@...r.kernel.org, akpm@...uxfoundation.org
Subject: Re: [capabilities] Allow normal inheritance for a configurable set
 of capabilities

On Mon 2015-02-02 18:08:06, Serge Hallyn wrote:
> Quoting Casey Schaufler (casey@...aufler-ca.com):
> > I'm game to participate in such an effort. The POSIX scheme
> > is workable, but given that it's 20 years old and hasn't
> > developed real traction it's hard to call it successful.
> 
> Over the years we've several times discussed possible reasons for this
> and how to help.  I personally think it's two things:  1. lack of
> toolchain and fs support.  The fact that we cannot to this day enable
> ping using capabilities by default because of cpio, tar and non-xattr
> filesystems is disheartening.  2. It's hard for users and

Capabilities in the elf notes actually solve 1.

									Pavel
-- 
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