linux/security/selinux/include
Ondrej Mosnacek 65cddd5098 selinux: treat atomic flags more carefully
The disabled/enforcing/initialized flags are all accessed concurrently
by threads so use the appropriate accessors that ensure atomicity and
document that it is expected.

Use smp_load/acquire...() helpers (with memory barriers) for the
initialized flag, since it gates access to the rest of the state
structures.

Note that the disabled flag is currently not used for anything other
than avoiding double disable, but it will be used for bailing out of
hooks once security_delete_hooks() is removed.

Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: James Morris <jamorris@linux.microsoft.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
2020-01-10 15:19:39 -05:00
..
audit.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
avc_ss.h selinux: wrap AVC state 2018-03-20 16:58:17 -04:00
avc.h selinux: fall back to ref-walk if audit is required 2019-12-09 18:37:47 -05:00
classmap.h security,lockdown,selinux: implement SELinux lockdown 2019-12-09 17:53:58 -05:00
conditional.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372 2019-06-05 17:37:10 +02:00
ibpkey.h selinux: move ibpkeys code under CONFIG_SECURITY_INFINIBAND. 2020-01-10 11:56:37 -05:00
initial_sid_to_string.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
netif.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
netlabel.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
netnode.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295 2019-06-05 17:36:38 +02:00
netport.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295 2019-06-05 17:36:38 +02:00
objsec.h selinux: randomize layout of key structures 2019-12-18 21:26:06 -05:00
security.h selinux: treat atomic flags more carefully 2020-01-10 15:19:39 -05:00
xfrm.h security: Remove rtnl_lock() in selinux_xfrm_notify_policyload() 2018-03-29 13:47:53 -04:00