netfilter: xt_qtaguid: add uid permission checks during ctrl/stats access
* uid handling
- Limit UID impersonation to processes with a gid in AID_NET_BW_ACCT.
This affects socket tagging, and data removal.
- Limit stats lookup to own uid or the process gid is in AID_NET_BW_STATS.
This affects stats lookup.
* allow pacifying the module
Setting passive to Y/y will make the module return immediately on
external stimulus.
No more stats and silent success on ctrl writes.
Mainly used when one suspects this module of misbehaving.
Change-Id: I83990862d52a9b0922aca103a0f61375cddeb7c4
Signed-off-by: JP Abgrall <jpa@google.com>
2 files changed
