tequilaOS/platform_system_sepolicy
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allow system server to set log.tag.WifiHAL

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On eng and userdebug builds (only), allow system server
to change the value of log.tag.WifiHAL. WifiStateMachine
will set this property to 'D' by default. If/when a user
enables "Developer options -> Enable Wi-Fi Verbose Logging",
WifiStateMachine change log.tag.WifiHAL to 'V'.

BUG=27857554
TEST=manual (see below)

Test detail
1. on user build:
   $ adb shell setprop log.tag.WifiHAL V
   $ adb shell getprop log.tag.WifiHAL
   <blank line>
   $ adb bugreport | grep log.tag.WifiHAL
   <11>[  141.918517] init: avc:  denied  { set } for property=log.tag.WifiHAL pid=4583 uid=2000 gid=2000 scontext=u:r:shell:s0 tcontext=u:object_r:wifi_log_prop:s0 tclass=property_service permissive=0
   <11>[  141.918566] init: sys_prop: permission denied uid:2000  name:log.tag.WifiHAL
2. on userdebug build:
   $ adb shell getprop log.tag.WifiHAL
   $ <blank line>
   $ adb shell setprop log.tag.WifiHAL V
   $ adb shell getprop log.tag.WifiHAL
   V
3. on userdebug build with modified WifiStateMachine:
   $ adb shell getprop log.tag.WifiHAL
   D

Change-Id: I9cdd52a2b47a3dd1065262ea8c329130b7b044db
This commit is contained in:
mukesh agrawal 2016-04-15 11:10:39 -07:00
parent 84cfde229c
commit e651f6f468
4 changed files with 4 additions and 0 deletions
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1
property.te
View file

@ -12,6 +12,7 @@ type net_radio_prop, property_type, core_property_type;
type system_radio_prop, property_type, core_property_type;
type system_prop, property_type, core_property_type;
type vold_prop, property_type, core_property_type;
type wifi_log_prop, property_type, log_property_type;
type ctl_bootanim_prop, property_type;
type ctl_default_prop, property_type;
type ctl_dumpstate_prop, property_type;

1
property_contexts
View file

@ -33,6 +33,7 @@ debug. u:object_r:debug_prop:s0
debug.db. u:object_r:debuggerd_prop:s0
dumpstate. u:object_r:dumpstate_prop:s0
log. u:object_r:log_prop:s0
log.tag.WifiHAL u:object_r:wifi_log_prop:s0
service.adb.root u:object_r:shell_prop:s0
service.adb.tcp.port u:object_r:shell_prop:s0

1
shell.te
View file

@ -64,6 +64,7 @@ set_prop(shell, dumpstate_prop)
set_prop(shell, debug_prop)
set_prop(shell, powerctl_prop)
userdebug_or_eng(`set_prop(shell, log_prop)')
userdebug_or_eng(`set_prop(shell, wifi_log_prop)')
# systrace support - allow atrace to run
allow shell debugfs_tracing:dir r_dir_perms;

1
system_server.te
View file

@ -319,6 +319,7 @@ set_prop(system_server, debug_prop)
set_prop(system_server, powerctl_prop)
set_prop(system_server, fingerprint_prop)
set_prop(system_server, device_logging_prop)
userdebug_or_eng(`set_prop(system_server, wifi_log_prop)')
# ctl interface
set_prop(system_server, ctl_default_prop)