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Date: Fri, 23 Jun 2017 12:01:08 -0500
From: "Serge E. Hallyn" <serge@hallyn.com>
To: Casey Schaufler <casey@schaufler-ca.com>
Cc: "Serge E. Hallyn" <serge@hallyn.com>,
        Amir Goldstein <amir73il@gmail.com>,
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Subject: Re: [PATCH 0/3] Enable namespaced file capabilities
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Quoting Casey Schaufler (casey@schaufler-ca.com):
> On 6/23/2017 9:30 AM, Serge E. Hallyn wrote:
> > Quoting Casey Schaufler (casey@schaufler-ca.com):
> >> Or maybe just security.ns.capability, taking James' comment into account.
> > That last one may be suitable as an option, useful for his particular
> > (somewhat barbaric :) use case, but it's not ok for the general solution.
> 
> security.ns@uid=100.capability

I'm ok with this.  It gives protection from older kernels, and puts
the 'ns@uid=' at predictable locations for security and trusted.

> It makes the namespace part explicit and separate from
> the rest of the attribute name. It also generalizes for
> other attributes.
> 
> security.ns@uid=1000@smack=WestOfOne.SMACK64

Looks good to me.

Do we want to say that '.' ends the attribute list?  That of
course means '.' cannot be in the attributes.  Perhaps end
with '@@' instead?  Just a thought.

What do others think?

thanks,
-serge