linux_dsm_epyc7002/security
Casey Schaufler d166c8024d Smack: Bring-up access mode
People keep asking me for permissive mode, and I keep saying "no".

Permissive mode is wrong for more reasons than I can enumerate,
but the compelling one is that it's once on, never off.

Nonetheless, there is an argument to be made for running a
process with lots of permissions, logging which are required,
and then locking the process down. There wasn't a way to do
that with Smack, but this provides it.

The notion is that you start out by giving the process an
appropriate Smack label, such as "ATBirds". You create rules
with a wide range of access and the "b" mode. On Tizen it
might be:

	ATBirds	System	rwxalb
	ATBirds	User	rwxalb
	ATBirds	_	rwxalb
	User	ATBirds	wb
	System	ATBirds	wb

Accesses that fail will generate audit records. Accesses
that succeed because of rules marked with a "b" generate
log messages identifying the rule, the program and as much
object information as is convenient.

When the system is properly configured and the programs
brought in line with the labeling scheme the "b" mode can
be removed from the rules. When the system is ready for
production the facility can be configured out.

This provides the developer the convenience of permissive
mode without creating a system that looks like it is
enforcing a policy while it is not.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
2014-08-28 13:11:56 -07:00
..
apparmor sched: move no_new_privs into new atomic flags 2014-07-18 12:13:38 -07:00
integrity ima: add support for measuring and appraising firmware 2014-07-25 11:47:46 -07:00
keys KEYS: revert encrypted key change 2014-07-28 12:36:17 +01:00
selinux Merge branch 'next' of git://git.infradead.org/users/pcmoore/selinux into next 2014-08-02 22:58:02 +10:00
smack Smack: Bring-up access mode 2014-08-28 13:11:56 -07:00
tomoyo get rid of pointless checks for NULL ->i_op 2014-04-01 23:19:16 -04:00
yama yama: Better permission check for ptraceme 2013-03-26 13:17:58 -07:00
capability.c security: introduce kernel_fw_from_file hook 2014-07-25 11:47:45 -07:00
commoncap.c CAPABILITIES: remove undefined caps from all processes 2014-07-24 21:53:47 +10:00
device_cgroup.c device_cgroup: use css_has_online_children() instead of has_children() 2014-05-16 13:22:52 -04:00
inode.c securityfs: fix object creation races 2012-01-10 10:20:35 -05:00
Kconfig security: select correct default LSM_MMAP_MIN_ADDR on arm on arm64 2014-02-05 14:59:14 +00:00
lsm_audit.c audit: anchor all pid references in the initial pid namespace 2014-03-20 10:11:55 -04:00
Makefile security: cleanup Makefiles to use standard syntax for specifying sub-directories 2014-02-17 11:08:04 +11:00
min_addr.c mmap_min_addr check CAP_SYS_RAWIO only for write 2010-04-23 08:56:31 +10:00
security.c ima: add support for measuring and appraising firmware 2014-07-25 11:47:46 -07:00