linux-kernel - Re: [PATCH V6 05/10] audit: log creation and deletion of namespace instances

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Date:	Tue, 05 May 2015 09:56:03 -0500
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Steve Grubb <sgrubb@...hat.com>
Cc:	Richard Guy Briggs <rgb@...hat.com>,
	containers@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org, linux-audit@...hat.com,
	eparis@...isplace.org, pmoore@...hat.com, arozansk@...hat.com,
	serge@...lyn.com, zohar@...ux.vnet.ibm.com,
	viro@...iv.linux.org.uk, linux-fsdevel@...r.kernel.org,
	linux-api@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH V6 05/10] audit: log creation and deletion of namespace instances

Steve Grubb <sgrubb@...hat.com> writes:

> The requirements for auditing of containers should be derived from VPP. In it, 
> it asks for selectable auditing, selective audit, and selective audit review. 
> What this means is that we need the container and all its children to have one 
> identifier that is inserted into all the events that are associated with the 
> container.

That is technically impossible.  Nested containers exist.

That is when container G is nested in container F which is in turn
nested in container E which is in turn nested in container D which is in
turn nested in container C which is in turn nested in container B which
is nested in container A there is no one label you can put on audit
messages from container G which is the ``correct'' one.

Or are you proposing that something in container G have labels
A B C D E F G included on every audit message?   That introduces enough
complexity in generating and parsing the messages I wouldn't trust those
messages as the least bug in generation and parsing would be a security
issue.

What is the world is VPP?  It sounds like something non-public thing.
Certainly it has never been a part of the public container discussion
and as such it appears to be completely ridiculous to bring up in a
public discussion.

Eric
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