1 /* 2 * Copyright (C) 2019 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.integrity.model; 18 19 import android.content.integrity.Rule; 20 21 /** 22 * A helper class containing information about the binary representation of different {@link Rule} 23 * components. 24 */ 25 public final class ComponentBitSize { 26 public static final int FORMAT_VERSION_BITS = 8; 27 28 public static final int EFFECT_BITS = 3; 29 public static final int KEY_BITS = 4; 30 public static final int OPERATOR_BITS = 3; 31 public static final int CONNECTOR_BITS = 2; 32 public static final int SEPARATOR_BITS = 3; 33 public static final int VALUE_SIZE_BITS = 8; 34 public static final int IS_HASHED_BITS = 1; 35 36 public static final int ATOMIC_FORMULA_START = 0; 37 public static final int COMPOUND_FORMULA_START = 1; 38 public static final int COMPOUND_FORMULA_END = 2; 39 public static final int INSTALLER_ALLOWED_BY_MANIFEST_START = 3; 40 41 public static final int DEFAULT_FORMAT_VERSION = 1; 42 public static final int SIGNAL_BIT = 1; 43 44 public static final int BYTE_BITS = 8; 45 } 46