commit ee24aebffb75a7f940cf52c8cf6910947b3130c0
author Linus Torvalds <torvalds@linux-foundation.org> Thu Feb 10 17:53:55 2011 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> Thu Feb 10 17:53:55 2011 -0800
tree ed1eafa8b1a30b078c9fa680aafbb49632921a0d
parent 67d019528e5c2693145217cf18a507689980d2a4

cap_syslog: accept CAP_SYS_ADMIN for now

In commit ce6ada35bdf7 ("security: Define CAP_SYSLOG") Serge Hallyn
introduced CAP_SYSLOG, but broke backwards compatibility by no longer
accepting CAP_SYS_ADMIN as an override (it would cause a warning and
then reject the operation).

Re-instate CAP_SYS_ADMIN - but keeping the warning - as an acceptable
capability until any legacy applications have been updated.  There are
apparently applications out there that drop all capabilities except for
CAP_SYS_ADMIN in order to access the syslog.

(This is a re-implementation of a patch by Serge, cleaning the logic up
and making the code more readable)

Acked-by: Serge Hallyn <serge@hallyn.com>
Reviewed-by: James Morris <jmorris@namei.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>