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.verifiedboot.storage; 18 19 import javacard.framework.AID; 20 import javacard.framework.Shareable; 21 22 import com.android.verifiedboot.storage.BackupInterface; 23 24 public interface OsBackupInterface extends Shareable { 25 final public static byte TAG_VERSION_STORAGE = 0x0; 26 final public static byte TAG_LOCK_CARRIER = 0x1; 27 final public static byte TAG_LOCK_DEVICE = 0x2; 28 final public static byte TAG_LOCK_BOOT = 0x3; 29 final public static byte TAG_LOCK_OWNER = 0x4; 30 final public static byte TAG_MAX = TAG_LOCK_OWNER; 31 32 final public static byte TAG_MAGIC = (byte) 0xf0; 33 34 35 /** 36 * dds the given BackupInterface object for tracking 37 * on backup or restore. Only one object is allowed 38 * per tag. 39 * 40 * @param tag The tag mapping the specific object to the tag 41 * @param bObj Object to track. 42 */ 43 void track(byte tag, Object bObj); 44 45 /** 46 * Returns true on a successful reimport of data. 47 * 48 * @param inBytes array to read from 49 * @param inBytesOffset offset to begin copying from. 50 */ 51 boolean restore(byte[] inBytes, short inBytesOffset); 52 53 /** 54 * Mimic the applet call. 55 * 56 * @param aid caller's AID 57 * @param arg requesting argument 58 */ 59 Shareable getShareableInterfaceObject(AID aid, byte arg); 60 } 61
