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1. Introduction:
----------------
Android provides support for AppOps service to manage and control
user-permissions of different operations of installed packages.
AppOps service reads /system/etc/appops_policy.xml file to read all default
user-permissions of different operations of installed packages.
2. AppOps Policy File:
----------------------
AppOps policy file can be used to assign default permissions to both system
and user installed applications. Since hardcoded in AppOpsService this file
should be at /system/etc/appops_policy.xml path on the device.
Following section talks about various tags used in appops_policy.xml file:
2.1 appops-policy
This is the root tag of appops_policy file.
Parameters:
i) version (Required) -This parameter defines the version of
appops_policy.xml format. It should be set to "1".
Tags:
i) user-app - section to configure default permissions of user
installed apps.
ii) system-app - section to configure default permissions of preset
(system) apps
iii) application - section to override default permission of particular
packages.
2.2 user-app
This tag is used to set default permission of user installed applications.
Parameters:
i) permission - To set default permission of all user installed apps.
ii) show - To show/hide operations in app ops settings activity.
Tags:
<None>
2.3 system-app
This tag is used to set default permission of preset installed applications.
Parameters:
i) permission - To set default permission of all system installed apps.
ii) show - To show/hide operations in app ops settings activity.
Tags:
<None>
2.4 application
This tag is used to set default permission of specific applications.
Parameters:
<None>
Tags:
i) pkg - section to set default permission of specific package.
2.5 pkg
This tag is used to set default permission of specific package.
Parameters:
i) name - To specify name of the package.
ii) type - To set if package is part of preset or user installed application.
iii) permission - To set default permission of package's all operations.
iv) show - To show/hide operations in app ops settings activity.
Tags:
i) op - section to set defualt permission of an operation.
2.5 op
This tag is used to set default permission of specific operation
Parameters:
i) name - To specify name of the operation
ii) permission - To set default permisison of operation
iii) show - To show/hide operation in app ops settings activity.
3 Example:
----------
<appops-policy version="1">
<user-app permission="ask" show="true"/>
<system-app permission="allowed" show="false"/>
<application>
<pkg name="com.android.dialer" type="system-app">
<op name="android:call_phone" permission="ask" show="true"/>
</pkg>
<pkg name="com.xyz.abc" type="system-app" permission="allowed" show="false">
<op name="android:fine_location" permission="ask" show="true"/>
<op name="android:monitor_location" permission="ask" show="true"/>
</pkg>
</application>
</appops-policy>
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