linux-kernel - Re: [RFC] capabilities: Ambient capabilities

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Date:	Mon, 27 Apr 2015 09:55:51 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Andy Lutomirski <luto@...capital.net>
cc:	Serge Hallyn <serge.hallyn@...ntu.com>,
	Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
	Andrew Lutomirski <luto@...nel.org>, Ted Ts'o <tytso@....edu>,
	Andrew Morton <akpm@...uxfoundation.org>,
	"Andrew G. Morgan" <morgan@...nel.org>,
	Linux API <linux-api@...r.kernel.org>,
	Mimi Zohar <zohar@...ux.vnet.ibm.com>,
	Michael Kerrisk <mtk.manpages@...il.com>,
	Austin S Hemmelgarn <ahferroin7@...il.com>,
	linux-security-module <linux-security-module@...r.kernel.org>,
	Aaron Jones <aaronmdjones@...il.com>,
	Serge Hallyn <serge.hallyn@...onical.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Markku Savela <msa@...h.iki.fi>,
	Kees Cook <keescook@...omium.org>,
	Jonathan Corbet <corbet@....net>
Subject: Re: [RFC] capabilities: Ambient capabilities

On Fri, 24 Apr 2015, Andy Lutomirski wrote:

> Also, in my model you can do:
>
> $ sudo capset cap_whatever=eip something
> $ ./something
>
> and the program can make its cap be ambient and run a helper.  In the
> CAP_SETPCAP model, that doesn't work.

Dont see too much difference in setting caps and CAP_SETPCAP on
"./something" to allow it to set the ambient caps.
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