On Sat, Jun 27, 2020 at 9:23 AM Richard Guy Briggs [off-list ref] 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 <redacted>
---
 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