1 /* 2 * Copyright (C) 2016 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 package com.android.server.wifi.hotspot2; 17 18 /** 19 * Match score for EAP credentials: 20 * None means that there is a distinct mismatch, i.e. realm, method or parameter is defined 21 * and mismatches that of the credential. 22 * Indeterminate means that there is no ANQP information to match against. 23 * Note: The numeric values given to the constants are used for preference comparison and 24 * must be maintained accordingly. 25 */ 26 public abstract class AuthMatch { 27 public static final int NONE = -1; 28 public static final int INDETERMINATE = 0; 29 public static final int REALM = 0x04; 30 public static final int METHOD = 0x02; 31 public static final int PARAM = 0x01; 32 public static final int METHOD_PARAM = METHOD | PARAM; 33 public static final int EXACT = REALM | METHOD | PARAM; 34 35 public static String toString(int match) { 36 if (match < 0) { 37 return "None"; 38 } 39 else if (match == 0) { 40 return "Indeterminate"; 41 } 42 43 StringBuilder sb = new StringBuilder(); 44 if ((match & REALM) != 0) { 45 sb.append("Realm"); 46 } 47 if ((match & METHOD) != 0) { 48 sb.append("Method"); 49 } 50 if ((match & PARAM) != 0) { 51 sb.append("Param"); 52 } 53 return sb.toString(); 54 } 55 } 56
