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

From: Pavel Machek <pavel@ucw.cz>
To: Serge Hallyn <serge.hallyn@ubuntu.com>
Cc: Casey Schaufler <casey@schaufler-ca.com>,
	Christoph Lameter <cl@linux.com>,
	Serge Hallyn <serge.hallyn@canonical.com>,
	Andy Lutomirski <luto@amacapital.net>,
	Jonathan Corbet <corbet@lwn.net>,
	Aaron Jones <aaronmdjones@gmail.com>, "Ted Ts'o" <tytso@mit.edu>,
	linux-security-module@vger.kernel.org,
	linux-kernel@vger.kernel.org, akpm@linuxfoundation.org
Subject: Re: [capabilities] Allow normal inheritance for a configurable set of capabilities
Date: Wed, 25 Feb 2015 22:50:22 +0100	[thread overview]
Message-ID: <20150225215022.GE29527@amd> (raw)
In-Reply-To: <20150202180806.GE24351@ubuntumail>

On Mon 2015-02-02 18:08:06, Serge Hallyn wrote:
> Quoting Casey Schaufler (casey@schaufler-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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