1 /*
2  * Copyright (C) 2017 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;
18 
19 /**
20  * Internal interface for storing and retrieving persistent data.
21  */
22 public interface PersistentDataBlockManagerInternal {
23 
24     /** Stores the handle to a lockscreen credential to be used for Factory Reset Protection. */
setFrpCredentialHandle(byte[] handle)25     void setFrpCredentialHandle(byte[] handle);
26 
27     /**
28      * Retrieves handle to a lockscreen credential to be used for Factory Reset Protection.
29      *
30      * @throws IllegalStateException if the underlying storage is corrupt or inaccessible.
31      */
getFrpCredentialHandle()32     byte[] getFrpCredentialHandle();
33 
34     /** Update the OEM unlock enabled bit, bypassing user restriction checks. */
forceOemUnlockEnabled(boolean enabled)35     void forceOemUnlockEnabled(boolean enabled);
36 }
37