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Date:   Sun, 5 Jul 2020 11:11:40 -0400
From:   Paul Moore <paul@...l-moore.com>
To:     Richard Guy Briggs <rgb@...hat.com>
Cc:     containers@...ts.linux-foundation.org, linux-api@...r.kernel.org,
        Linux-Audit Mailing List <linux-audit@...hat.com>,
        linux-fsdevel@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
        netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
        sgrubb@...hat.com, Ondrej Mosnacek <omosnace@...hat.com>,
        dhowells@...hat.com, simo@...hat.com,
        Eric Paris <eparis@...isplace.org>,
        Serge Hallyn <serge@...lyn.com>, ebiederm@...ssion.com,
        nhorman@...driver.com, Dan Walsh <dwalsh@...hat.com>,
        mpatel@...hat.com
Subject: Re: [PATCH ghak90 V9 12/13] audit: track container nesting

On Sat, Jun 27, 2020 at 9:23 AM Richard Guy Briggs <rgb@...hat.com> wrote:
>
> Track the parent container of a container to be able to filter and
> report nesting.
>
> Now that we have a way to track and check the parent container of a
> container, modify the contid field format to be able to report that
> nesting using a carrat ("^") modifier to indicate nesting.  The
> original field format was "contid=<contid>" for task-associated records
> and "contid=<contid>[,<contid>[...]]" for network-namespace-associated
> records.  The new field format is
> "contid=<contid>[,^<contid>[...]][,<contid>[...]]".

I feel like this is a case which could really benefit from an example
in the commit description showing multiple levels of nesting, with
some leaf audit container IDs at each level.  This way we have a
canonical example for people who want to understand how to parse the
list and properly sort out the inheritance.


> Signed-off-by: Richard Guy Briggs <rgb@...hat.com>
> ---
>  include/linux/audit.h |  1 +
>  kernel/audit.c        | 60 ++++++++++++++++++++++++++++++++++++++++++---------
>  kernel/audit.h        |  2 ++
>  kernel/auditfilter.c  | 17 ++++++++++++++-
>  kernel/auditsc.c      |  2 +-
>  5 files changed, 70 insertions(+), 12 deletions(-)

--
paul moore
www.paul-moore.com

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