1 /* 2 * Copyright (C) 2013 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.bluetooth.gatt; 18 19 import android.bluetooth.le.ScanFilter; 20 import android.bluetooth.le.ScanSettings; 21 import android.os.Binder; 22 import android.os.UserHandle; 23 24 import java.util.List; 25 import java.util.Objects; 26 27 /** 28 * Helper class identifying a client that has requested LE scan results. 29 * 30 * @hide 31 */ 32 /* package */class ScanClient { 33 public int scannerId; 34 public ScanSettings settings; 35 public int scanModeApp; 36 public boolean started = false; 37 public int appUid; 38 public List<ScanFilter> filters; 39 // App associated with the scan client died. 40 public boolean appDied; 41 public boolean hasLocationPermission; 42 public UserHandle userHandle; 43 public boolean isQApp; 44 public boolean eligibleForSanitizedExposureNotification; 45 public boolean hasNetworkSettingsPermission; 46 public boolean hasNetworkSetupWizardPermission; 47 public boolean hasScanWithoutLocationPermission; 48 public boolean hasDisavowedLocation; 49 public List<String> associatedDevices; 50 51 public AppScanStats stats = null; 52 53 private static final ScanSettings DEFAULT_SCAN_SETTINGS = 54 new ScanSettings.Builder().setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY).build(); 55 ScanClient(int scannerId)56 ScanClient(int scannerId) { 57 this(scannerId, DEFAULT_SCAN_SETTINGS, null); 58 } 59 ScanClient(int scannerId, ScanSettings settings, List<ScanFilter> filters)60 ScanClient(int scannerId, ScanSettings settings, List<ScanFilter> filters) { 61 this.scannerId = scannerId; 62 this.settings = settings; 63 this.scanModeApp = settings.getScanMode(); 64 this.filters = filters; 65 this.appUid = Binder.getCallingUid(); 66 } 67 68 @Override equals(Object obj)69 public boolean equals(Object obj) { 70 if (this == obj) { 71 return true; 72 } 73 if (obj == null || getClass() != obj.getClass()) { 74 return false; 75 } 76 ScanClient other = (ScanClient) obj; 77 return scannerId == other.scannerId; 78 } 79 80 @Override hashCode()81 public int hashCode() { 82 return Objects.hash(scannerId); 83 } 84 85 @Override toString()86 public String toString() { 87 StringBuilder sb = new StringBuilder(); 88 sb.append(" [ScanClient") 89 .append(" scanModeApp ").append(scanModeApp) 90 .append(" scanModeUsed ").append(settings.getScanMode()); 91 if (stats != null && stats.appName != null) { 92 sb.append(" [appScanStats ").append(stats.appName).append("]"); 93 } 94 sb.append("]"); 95 return sb.toString(); 96 } 97 98 /** 99 * Update scan settings with the new scan mode. 100 * @param newScanMode 101 * @return true if scan settings are updated, false otherwise. 102 */ updateScanMode(int newScanMode)103 public boolean updateScanMode(int newScanMode) { 104 if (settings.getScanMode() == newScanMode) { 105 return false; 106 } 107 108 ScanSettings.Builder builder = new ScanSettings.Builder(); 109 settings = builder.setScanMode(newScanMode) 110 .setCallbackType(settings.getCallbackType()) 111 .setScanResultType(settings.getScanResultType()) 112 .setReportDelay(settings.getReportDelayMillis()) 113 .setNumOfMatches(settings.getNumOfMatches()) 114 .setMatchMode(settings.getMatchMode()) 115 .setLegacy(settings.getLegacy()) 116 .setPhy(settings.getPhy()) 117 .build(); 118 return true; 119 } 120 } 121