Subject: Re: [RFC PATCH V1 00/12] audit: implement container id

From: Mimi Zohar <[email-masked]>
Date: Sun, 04 Mar 2018 16:55:57 -0500

On Thu, 2018-03-01 at 14:41 -0500, Richard Guy Briggs wrote:
> Implement audit kernel container ID.
> 
> This patchset is a preliminary RFC based on the proposal document (V3)
> posted:
> 	https://www.redhat.com/archives/linux-audit/2018-January/msg00014.html
> 
> The first patch implements the proc fs write to set the audit container
> ID of a process, emitting an AUDIT_CONTAINER record.
> 
> The second implements an auxiliary syscall record AUDIT_CONTAINER_INFO
> if a container ID is present on a task.
> 
> The third adds filtering to the exit, exclude and user lists.
> 
> The 4th, implements reading the container ID from the proc filesystem
> for debugging.  This isn't planned for upstream inclusion.
> 
> The 5th adds signal and ptrace support.
> 
> The 6th attempts to create a local audit context to be able to bind a
> standalone record with the container ID record.
> 
> The 7th, 8th, 9th, 10th patches add container ID records to standalone
> records.  Some of these may end up being syscall auxiliary records and
> won't need this specific support since they'll be supported via
> syscalls.
> 
> The 11th is a temporary workaround due to the AUDIT_CONTAINER records
> not showing up as do AUDIT_LOGIN records.  I suspect this is due to its
> range (1000 vs 1300), but the intent is to solve it.
> 
> The 12th adds debug information not intended for upstream for those
> brave souls wanting to tinker with it in this early state.
> 
> Feedback please!

Which tree can this patch set be applied to?

Mimi

> Here's a quick and dirty test script:
> echo 123455 > /proc/$$/containerid; echo $?
> sleep 4&  
> child=$!; sleep 1
> echo 18446744073709551615 > /proc/$child/containerid; echo $?
> echo 123456 > /proc/$child/containerid; echo $?
> echo 123457 > /proc/$child/containerid; echo $?
> sleep 1
> ausearch -ts recent |grep " contid=18446744073709551615"; echo $?
> ausearch -ts recent |grep " contid=123456"; echo $?
> ausearch -ts recent |grep " contid=123457"; echo $?
> echo self:$$ contid:$( cat /proc/$$/containerid)
> echo child:$child contid:$( cat /proc/$child/containerid)
> 
> containerid=123458
> key=tmpcontainerid
> auditctl -a exit,always -F dir=/tmp -F perm=wa -F containerid=$containerid -F key=$key || echo failed to add containerid filter rule
> bash -c "sleep 1; echo test > /tmp/$key"&
> child=$!
> echo $containerid > /proc/$child/containerid
> sleep 2
> rm -f /tmp/$key
> ausearch -ts recent -k $key || echo failed to find CONTAINER_INFO record
> auditctl -d exit,always -F dir=/tmp -F perm=wa -F containerid=$containerid -F key=$key || echo failed to add containerid filter rule
> 
> See:
> 	https://github.com/linux-audit/audit-kernel/issues/32
> 	https://github.com/linux-audit/audit-userspace/issues/40
> 	https://github.com/linux-audit/audit-testsuite/issues/64
> 
> Richard Guy Briggs (12):
>   audit: add container id
>   audit: log container info of syscalls
>   audit: add containerid filtering
>   audit: read container ID of a process
>   audit: add containerid support for ptrace and signals
>   audit: add support for non-syscall auxiliary records
>   audit: add container aux record to watch/tree/mark
>   audit: add containerid support for tty_audit
>   audit: add containerid support for config/feature/user records
>   audit: add containerid support for seccomp and anom_abend records
>   debug audit: add container id
>   debug! audit: add container id
> 
>  drivers/tty/tty_audit.c    |   5 +-
>  fs/proc/base.c             |  63 +++++++++++++++++++
>  include/linux/audit.h      |  36 +++++++++++
>  include/linux/init_task.h  |   4 +-
>  include/linux/sched.h      |   1 +
>  include/uapi/linux/audit.h |   9 ++-
>  kernel/audit.c             |  74 +++++++++++++++++++---
>  kernel/audit.h             |   3 +
>  kernel/audit_fsnotify.c    |   5 +-
>  kernel/audit_tree.c        |   5 +-
>  kernel/audit_watch.c       |  33 +++++-----
>  kernel/auditfilter.c       |  52 ++++++++++++++-
>  kernel/auditsc.c           | 154 +++++++++++++++++++++++++++++++++++++++++++--
>  13 files changed, 408 insertions(+), 36 deletions(-)
>