Eric W. Biederman d83f5901bc coda: Restrict coda messages to the initial user namespace
Remove the slight chance that uids and gids in coda messages will be
interpreted in the wrong user namespace.

- Only allow processes in the initial user namespace to open the coda
  character device to communicate with coda filesystems.
- Explicitly convert the uids in the coda header into the initial user
  namespace.
- In coda_vattr_to_attr make kuids and kgids from the initial user
  namespace uids and gids in struct coda_vattr that just came from
  userspace.
- In coda_iattr_to_vattr convert kuids and kgids into uids and gids
  in the intial user namespace and store them in struct coda_vattr for
  sending to coda userspace programs.

Nothing needs to be changed with mounts as coda does not support
being mounted in anything other than the initial user namespace.

Cc: Jan Harkes <jaharkes@cs.cmu.edu>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2013-02-13 06:00:53 -08:00
..
2012-12-19 12:47:41 -08:00
2012-12-11 11:19:09 -08:00
2012-12-13 19:26:04 -08:00
2012-12-07 17:02:47 +00:00
2012-12-19 12:46:40 -08:00
2012-11-30 12:37:36 +01:00
2012-10-08 13:50:20 +10:30
2012-12-02 00:05:12 +00:00
2012-11-15 00:34:23 +01:00
2012-12-20 13:57:36 -05:00
2012-12-21 20:23:41 +00:00
2012-11-08 16:58:31 +01:00
2012-11-28 11:54:40 +01:00
2012-10-16 18:49:15 -07:00
2012-11-22 13:43:27 +09:00
2012-11-28 21:49:02 -05:00
2012-11-28 21:49:02 -05:00
2012-11-08 16:58:30 +01:00
2012-11-21 10:07:48 +01:00
2012-10-29 21:31:32 +01:00
2012-12-16 15:18:08 -08:00
2012-12-16 15:18:08 -08:00
2012-11-23 12:23:40 +01:00
2012-12-14 13:05:26 +10:30
2012-11-21 15:09:26 -08:00
2012-11-08 11:24:46 -05:00
2012-11-20 16:15:02 +10:00
2012-11-03 14:50:15 -04:00
2012-10-10 01:15:44 -04:00
2012-12-12 17:38:33 -08:00
2012-12-16 15:18:08 -08:00
2012-12-16 15:18:08 -08:00
2012-12-20 18:46:29 -05:00
2012-12-16 15:18:08 -08:00
2012-10-10 20:00:55 +10:30
2012-12-14 13:06:40 +10:30
2012-12-11 17:22:27 -08:00
2012-10-17 15:53:02 -05:00
2012-10-10 22:41:05 -04:00
2012-12-13 12:14:47 -08:00
2012-11-16 14:33:04 -08:00
2012-12-18 15:02:13 -08:00
2012-12-18 15:02:14 -08:00
2012-10-27 15:38:29 -07:00
2012-10-09 16:22:55 +09:00
2012-10-09 16:22:32 +09:00
2012-10-22 16:58:28 -07:00
2012-11-15 17:20:58 -08:00
2012-12-16 15:18:08 -08:00