1 /* 2 * Copyright (C) 2021 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.server.devicepolicy; 18 19 import android.annotation.Nullable; 20 import android.app.admin.DeviceAdminInfo; 21 import android.content.ComponentName; 22 23 import com.android.internal.util.JournaledFile; 24 25 import java.util.function.Function; 26 27 /** 28 * An interface for providing the {@code PolicyVersionUpgrader} with all the data necessary 29 * to go through the upgrade process. 30 */ 31 public interface PolicyUpgraderDataProvider { 32 /** 33 * Returns true if the provided {@code userId} is a device owner. May affect some policy 34 * defaults. 35 */ isDeviceOwner(int userId, ComponentName who)36 boolean isDeviceOwner(int userId, ComponentName who); 37 38 /** 39 * Returns true if the storage manager indicates file-based encryption is enabled. 40 */ storageManagerIsFileBasedEncryptionEnabled()41 boolean storageManagerIsFileBasedEncryptionEnabled(); 42 43 /** 44 * Returns the journaled policies file for a given user. 45 */ makeDevicePoliciesJournaledFile(int userId)46 JournaledFile makeDevicePoliciesJournaledFile(int userId); 47 48 /** 49 * Returns the journaled policy version file for a given user. 50 */ makePoliciesVersionJournaledFile(int userId)51 JournaledFile makePoliciesVersionJournaledFile(int userId); 52 53 /** 54 * Returns the {@code ComponentName} of the owner component for a user. 55 */ getOwnerComponent(int userId)56 @Nullable ComponentName getOwnerComponent(int userId); 57 58 /** 59 * Returns a function which provides the component name and device admin info for a given 60 * user. 61 */ getAdminInfoSupplier(int userId)62 Function<ComponentName, DeviceAdminInfo> getAdminInfoSupplier(int userId); 63 64 /** 65 * Returns the users to upgrade. 66 */ getUsersForUpgrade()67 int[] getUsersForUpgrade(); 68 } 69