linux-kernel - Re: [PATCH v2 1/2] capabilities: Ambient capabilities

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Message-ID: <CALCETrU3jbtb6MqKHSwo=5PLoDi09HVdb=254kK++ezpCfcK6g@mail.gmail.com>
Date:	Tue, 19 May 2015 13:23:50 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	Aaron Jones <aaronmdjones@...il.com>
Cc:	Christoph Lameter <cl@...ux.com>,
	Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
	"Ted Ts'o" <tytso@....edu>, "Andrew G. Morgan" <morgan@...nel.org>,
	Andrew Morton <akpm@...uxfoundation.org>,
	Serge Hallyn <serge.hallyn@...ntu.com>,
	Michael Kerrisk <mtk.manpages@...il.com>,
	Mimi Zohar <zohar@...ux.vnet.ibm.com>,
	Linux API <linux-api@...r.kernel.org>,
	Austin S Hemmelgarn <ahferroin7@...il.com>,
	linux-security-module <linux-security-module@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Serge Hallyn <serge.hallyn@...onical.com>,
	Markku Savela <msa@...h.iki.fi>,
	Kees Cook <keescook@...omium.org>,
	Jonathan Corbet <corbet@....net>
Subject: Re: [PATCH v2 1/2] capabilities: Ambient capabilities

On Tue, May 19, 2015 at 1:22 PM, Aaron Jones <aaronmdjones@...il.com> wrote:
> On 19/05/15 20:07, Andy Lutomirski wrote:> It's in the cover letter,
> rather vaguely.  I think I want to change
>> the setpriv syntax a bit before sending it upstream, though -- it's
>> sucks that you have to duplicate the option.
>>
>> Perhaps the ambient-caps option should implicitly raise inheritable
>> caps if they're not already raised.  Or maybe the absence of an
>> inh-caps rule should cause any requested ambient caps to be made
>> inheritable as well.
>>
>> --Andy
>
> I propose an additional --ambient-inh option to copy everything from
> --inh-caps to the ambient set. Explicit is better than implicit.

Seems reasonable.  I'll do something like that for v2.1.

--Andy
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