Allow logd.auditd to reboot to safe mode

Bug: 26902605
Change-Id: Ica825cf2af74f5624cf4091544bd24bb5482dbe7
(cherry picked from commit 9c168711)

logd.te

@@ -22,6 +22,10 @@ userdebug_or_eng(`
 allow logd pstorefs:dir search;
 allow logd pstorefs:file r_file_perms;
 
+# Set persist.sys. and sys.powerctl
+set_prop(logd, safemode_prop)
+set_prop(logd, powerctl_prop)
+
 # Access device logging gating property
 get_prop(logd, device_logging_prop)
 

property.te

@@ -33,5 +33,6 @@ type nfc_prop, property_type, core_property_type;
 type dalvik_prop, property_type, core_property_type;
 type config_prop, property_type, core_property_type;
 type device_logging_prop, property_type;
+type safemode_prop, property_type;
 
 allow property_type tmpfs:filesystem associate;

property_contexts

@@ -43,6 +43,8 @@ persist.logd.security   u:object_r:device_logging_prop:s0
 persist.log.tag         u:object_r:logd_prop:s0
 persist.mmc.            u:object_r:mmc_prop:s0
 persist.sys.            u:object_r:system_prop:s0
+persist.sys.safemode    u:object_r:safemode_prop:s0
+persist.sys.audit_safemode      u:object_r:safemode_prop:s0
 persist.service.        u:object_r:system_prop:s0
 persist.service.bdroid. u:object_r:bluetooth_prop:s0
 persist.security.       u:object_r:system_prop:s0

system_server.te

@@ -295,6 +295,7 @@ allow system_server system_data_file:dir relabelfrom;
 
 # Property Service write
 set_prop(system_server, system_prop)
+set_prop(system_server, safemode_prop)
 set_prop(system_server, dhcp_prop)
 set_prop(system_server, net_radio_prop)
 set_prop(system_server, system_radio_prop)