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Commit cea5b6c7 authored by Lenka Trochtova's avatar Lenka Trochtova
Browse files

Introduce a new user restriction for disallowing Bluetooth. 

Only the device owner will be able to set the restriction
and the restriction will prevent usage of Bluetooth on the
entire device - i.e. in all the users.

Test: cts-tradefed run cts -m CtsDevicePolicyManagerTestCases --test com.android.cts.devicepolicy.UserRestrictionsTest
Test: cts-tradefed run cts -m CtsDevicePolicyManagerTestCases --test com.android.cts.devicepolicy.DeviceOwnerTest#testBluetoothRestriction

Bug: 32895300

Merged-In: I2875cf178cb16eca1965d0ba965d1cd3d8db2ad5

Change-Id: I2875cf178cb16eca1965d0ba965d1cd3d8db2ad5
parent 3f971603

service/java/com/android/server/bluetooth/BluetoothManagerService.java

+46 −0
Original line number Diff line number Diff line
@@ -39,6 +39,7 @@ import android.content.pm.PackageManager; 
import android.content.pm.UserInfo;

import android.database.ContentObserver;

import android.os.Binder;

import android.os.Bundle;

import android.os.Handler;

import android.os.IBinder;

import android.os.Looper;
@@ -49,6 +50,8 @@ import android.os.RemoteException; 
import android.os.SystemClock;

import android.os.UserHandle;

import android.os.UserManager;

import android.os.UserManagerInternal;

import android.os.UserManagerInternal.UserRestrictionsListener;

import android.provider.Settings;

import android.provider.Settings.SettingNotFoundException;

import android.util.Slog;
@@ -172,6 +175,19 @@ class BluetoothManagerService extends IBluetoothManager.Stub { 
        }

    };



    private final UserRestrictionsListener mUserRestrictionsListener =

            new UserRestrictionsListener() {

        @Override

        public void onUserRestrictionsChanged(int userId, Bundle newRestrictions,

                Bundle prevRestrictions) {

            final boolean bluetoothDisallowed =

                    newRestrictions.getBoolean(UserManager.DISALLOW_BLUETOOTH);

            if ((mEnable || mEnableExternal) && bluetoothDisallowed) {

                disable(true);

            }

        }

    };



    private final BroadcastReceiver mReceiver = new BroadcastReceiver() {

        @Override

        public void onReceive(Context context, Intent intent) {
@@ -621,6 +637,13 @@ class BluetoothManagerService extends IBluetoothManager.Stub { 


    public boolean enableNoAutoConnect()

    {

        if (isBluetoothDisallowed()) {

            if (DBG) {

                Slog.d(TAG, "enableNoAutoConnect(): not enabling - bluetooth disallowed");

            }

            return false;

        }



        mContext.enforceCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM,

                                                "Need BLUETOOTH ADMIN permission");
@@ -643,6 +666,13 @@ class BluetoothManagerService extends IBluetoothManager.Stub { 
    }



    public boolean enable() {

        if (isBluetoothDisallowed()) {

            if (DBG) {

                Slog.d(TAG,"enable(): not enabling - bluetooth disallowed");

            }

            return false;

        }



        if ((Binder.getCallingUid() != Process.SYSTEM_UID) &&

            (!checkIfCallerIsForegroundUser())) {

            Slog.w(TAG,"enable(): not allowed for non-active and non system user");
@@ -804,6 +834,12 @@ class BluetoothManagerService extends IBluetoothManager.Stub { 
     */

    public void handleOnBootPhase() {

        if (DBG) Slog.d(TAG, "Bluetooth boot completed");

        UserManagerInternal userManagerInternal =

                LocalServices.getService(UserManagerInternal.class);

        userManagerInternal.addUserRestrictionsListener(mUserRestrictionsListener);

        if (isBluetoothDisallowed()) {

            return;

        }

        if (mEnableExternal && isBluetoothPersistedStateOnBluetooth()) {

            if (DBG) Slog.d(TAG, "Auto-enabling Bluetooth.");

            sendEnableMsg(mQuietEnableExternal);
@@ -1846,6 +1882,16 @@ class BluetoothManagerService extends IBluetoothManager.Stub { 
        }

    }



    private boolean isBluetoothDisallowed() {

        long callingIdentity = Binder.clearCallingIdentity();

        try {

            return mContext.getSystemService(UserManager.class)

                    .hasUserRestriction(UserManager.DISALLOW_BLUETOOTH, UserHandle.SYSTEM);

        } finally {

            Binder.restoreCallingIdentity(callingIdentity);

        }

    }



    @Override

    public void dump(FileDescriptor fd, PrintWriter writer, String[] args) {

        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DUMP, TAG);