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      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.weaver;
     18 
     19 // Keep in sync with native code
     20 public class Consts {
     21     public static final byte SLOT_ID_BYTES = 4; // 32-bit
     22     public static final byte SLOT_KEY_BYTES = 16; // 128-bit
     23     public static final byte SLOT_VALUE_BYTES = 16; // 128-bit
     24 
     25     // Read errors (first byte of response)
     26     public static final byte READ_SUCCESS = 0x00;
     27     public static final byte READ_WRONG_KEY = 0x7f;
     28     public static final byte READ_BACK_OFF = 0x76;
     29 
     30     // Errors
     31     public static final short SW_INVALID_SLOT_ID = 0x6a86;
     32 
     33     // Instructions
     34     public static final byte INS_GET_NUM_SLOTS = 0x02;
     35     public static final byte INS_WRITE = 0x4;
     36     public static final byte INS_READ = 0x6;
     37     public static final byte INS_ERASE_VALUE = 0x8;
     38     public static final byte INS_ERASE_ALL = 0xa;
     39 }
     40