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Date: Sat, 7 Mar 2015 15:35:22 -0600
From: "Serge E. Hallyn" <serge@hallyn.com>
To: Christoph Lameter <cl@linux.com>
Cc: Andy Lutomirski <luto@amacapital.net>,
        "Serge E. Hallyn" <serge@hallyn.com>,
        Serge Hallyn <serge.hallyn@canonical.com>,
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        Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
        Linux API <linux-api@vger.kernel.org>,
        Michael Kerrisk <mtk.manpages@gmail.com>
Subject: Re: [PATCH] capabilities: Ambient capability set V2
Message-ID: <20150307213522.GA9833@mail.hallyn.com>
References: <alpine.DEB.2.11.1502261612370.8994@gentwo.org>
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 <20150306163443.GA28386@mail.hallyn.com>
 <alpine.DEB.2.11.1503061244130.9804@gentwo.org>
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On Sat, Mar 07, 2015 at 09:06:46AM -0600, Christoph Lameter wrote:
> On Fri, 6 Mar 2015, Andy Lutomirski wrote:
> 
> > > christoph@fujitsu-haswell:~$ getcap ambient_test
> > >
> > > ambient_test = cap_setpcap,cap_net_admin,cap_net_raw,cap_sys_nice+eip
> >
> > I think that's right.  fI doesn't set pI.
> 
> Ok then that is the point of pI if it cannot be set?

It can be set!  Anything with CAP_SETPCAP can fill it's pI.  When
it and its children exec(), pI' = pI.