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[v5,0/6] capabilities: Introduce CAP_CHECKPOINT_RESTORE

Message ID 20200715144954.1387760-1-areber@redhat.com (mailing list archive)
Headers show
Series capabilities: Introduce CAP_CHECKPOINT_RESTORE | expand

Message

Adrian Reber July 15, 2020, 2:49 p.m. UTC 
This is v5 of the 'Introduce CAP_CHECKPOINT_RESTORE' patchset. The
changes to v4 are:

 * split into more patches to have the introduction of
   CAP_CHECKPOINT_RESTORE and the actual usage in different
   patches
 * reduce the /proc/self/exe patch to only be about
   CAP_CHECKPOINT_RESTORE

Adrian Reber (5):
  capabilities: Introduce CAP_CHECKPOINT_RESTORE
  pid: use checkpoint_restore_ns_capable() for set_tid
  pid_namespace: use checkpoint_restore_ns_capable() for ns_last_pid
  proc: allow access in init userns for map_files with CAP_CHECKPOINT_RESTORE
  selftests: add clone3() CAP_CHECKPOINT_RESTORE test

Nicolas Viennot (1):
  prctl: Allow checkpoint/restore capable processes to change exe link

 fs/proc/base.c                                |   8 +-
 include/linux/capability.h                    |   6 +
 include/uapi/linux/capability.h               |   9 +-
 kernel/pid.c                                  |   2 +-
 kernel/pid_namespace.c                        |   2 +-
 kernel/sys.c                                  |  12 +-
 security/selinux/include/classmap.h           |   5 +-
 tools/testing/selftests/clone3/Makefile       |   4 +-
 .../clone3/clone3_cap_checkpoint_restore.c    | 203 ++++++++++++++++++
 9 files changed, 236 insertions(+), 15 deletions(-)
 create mode 100644 tools/testing/selftests/clone3/clone3_cap_checkpoint_restore.c


base-commit: d31958b30ea3b7b6e522d6bf449427748ad45822

Comments

Serge E. Hallyn July 18, 2020, 3:24 a.m. UTC | #1 
On Wed, Jul 15, 2020 at 04:49:48PM +0200, Adrian Reber wrote:
> This is v5 of the 'Introduce CAP_CHECKPOINT_RESTORE' patchset. The
> changes to v4 are:
> 
>  * split into more patches to have the introduction of
>    CAP_CHECKPOINT_RESTORE and the actual usage in different
>    patches
>  * reduce the /proc/self/exe patch to only be about
>    CAP_CHECKPOINT_RESTORE
> 
> Adrian Reber (5):
>   capabilities: Introduce CAP_CHECKPOINT_RESTORE
>   pid: use checkpoint_restore_ns_capable() for set_tid
>   pid_namespace: use checkpoint_restore_ns_capable() for ns_last_pid
>   proc: allow access in init userns for map_files with CAP_CHECKPOINT_RESTORE
>   selftests: add clone3() CAP_CHECKPOINT_RESTORE test
> 
> Nicolas Viennot (1):
>   prctl: Allow checkpoint/restore capable processes to change exe link

(This is probably bad form, but)  All

Reviewed-by: Serge Hallyn <serge@hallyn.com>

Assuming you changes patches 4 and 6 per Christian's suggestions,
I'd like to re-review those then.

> 
>  fs/proc/base.c                                |   8 +-
>  include/linux/capability.h                    |   6 +
>  include/uapi/linux/capability.h               |   9 +-
>  kernel/pid.c                                  |   2 +-
>  kernel/pid_namespace.c                        |   2 +-
>  kernel/sys.c                                  |  12 +-
>  security/selinux/include/classmap.h           |   5 +-
>  tools/testing/selftests/clone3/Makefile       |   4 +-
>  .../clone3/clone3_cap_checkpoint_restore.c    | 203 ++++++++++++++++++
>  9 files changed, 236 insertions(+), 15 deletions(-)
>  create mode 100644 tools/testing/selftests/clone3/clone3_cap_checkpoint_restore.c
> 
> 
> base-commit: d31958b30ea3b7b6e522d6bf449427748ad45822
> -- 
> 2.26.2
Christian Brauner July 18, 2020, 5:47 p.m. UTC | #2 
On Fri, Jul 17, 2020 at 10:24:16PM -0500, Serge Hallyn wrote:
> On Wed, Jul 15, 2020 at 04:49:48PM +0200, Adrian Reber wrote:
> > This is v5 of the 'Introduce CAP_CHECKPOINT_RESTORE' patchset. The
> > changes to v4 are:
> > 
> >  * split into more patches to have the introduction of
> >    CAP_CHECKPOINT_RESTORE and the actual usage in different
> >    patches
> >  * reduce the /proc/self/exe patch to only be about
> >    CAP_CHECKPOINT_RESTORE
> > 
> > Adrian Reber (5):
> >   capabilities: Introduce CAP_CHECKPOINT_RESTORE
> >   pid: use checkpoint_restore_ns_capable() for set_tid
> >   pid_namespace: use checkpoint_restore_ns_capable() for ns_last_pid
> >   proc: allow access in init userns for map_files with CAP_CHECKPOINT_RESTORE
> >   selftests: add clone3() CAP_CHECKPOINT_RESTORE test
> > 
> > Nicolas Viennot (1):
> >   prctl: Allow checkpoint/restore capable processes to change exe link
> 
> (This is probably bad form, but)  All
> 
> Reviewed-by: Serge Hallyn <serge@hallyn.com>
> 
> Assuming you changes patches 4 and 6 per Christian's suggestions,
> I'd like to re-review those then.

Thanks, once Adrian has reposted the changes and you agree with them as
well, I'll pick them up though I might end up pushing this into the next
merge window...

Christian