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.le_scan; 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 /** Helper class identifying a client that has requested LE scan results. */ 28 class ScanClient { 29 private static final ScanSettings DEFAULT_SCAN_SETTINGS = 30 new ScanSettings.Builder().setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY).build(); 31 32 final int mScannerId; 33 final int mAppUid; 34 final List<ScanFilter> mFilters; 35 36 ScanSettings mSettings; 37 int mScanModeApp; 38 boolean mStarted = false; 39 boolean mIsInternalClient = false; 40 // App associated with the scan client died. 41 boolean mAppDied; 42 boolean mHasLocationPermission; 43 UserHandle mUserHandle; 44 boolean mIsQApp; 45 boolean mEligibleForSanitizedExposureNotification; 46 boolean mHasNetworkSettingsPermission; 47 boolean mHasNetworkSetupWizardPermission; 48 boolean mHasScanWithoutLocationPermission; 49 boolean mHasDisavowedLocation; 50 List<String> mAssociatedDevices; 51 AppScanStats mStats = null; 52 ScanClient(int scannerId)53 ScanClient(int scannerId) { 54 this(scannerId, DEFAULT_SCAN_SETTINGS, null); 55 } 56 ScanClient(int scannerId, ScanSettings settings, List<ScanFilter> filters)57 ScanClient(int scannerId, ScanSettings settings, List<ScanFilter> filters) { 58 this(scannerId, settings, filters, Binder.getCallingUid()); 59 } 60 ScanClient(int scannerId, ScanSettings settings, List<ScanFilter> filters, int appUid)61 ScanClient(int scannerId, ScanSettings settings, List<ScanFilter> filters, int appUid) { 62 mScannerId = scannerId; 63 mSettings = settings; 64 mScanModeApp = settings.getScanMode(); 65 mFilters = filters; 66 mAppUid = appUid; 67 } 68 69 @Override equals(Object obj)70 public boolean equals(Object obj) { 71 if (this == obj) { 72 return true; 73 } 74 if (!(obj instanceof ScanClient other)) { 75 return false; 76 } 77 return mScannerId == other.mScannerId; 78 } 79 80 @Override hashCode()81 public int hashCode() { 82 return Objects.hash(mScannerId); 83 } 84 85 @Override toString()86 public String toString() { 87 StringBuilder sb = new StringBuilder(" [ScanClient"); 88 sb.append(" scanModeApp ") 89 .append(mScanModeApp) 90 .append(" scanModeUsed ") 91 .append(mSettings.getScanMode()) 92 .append(" scannerId ") 93 .append(mScannerId); 94 95 if (mStats != null && mStats.mAppName != null) { 96 sb.append(" [appScanStats ").append(mStats.mAppName).append("]"); 97 } 98 99 return sb.append("]").toString(); 100 } 101 102 /** 103 * Update scan settings with the new scan mode. 104 * 105 * @return true if scan settings are updated, false otherwise. 106 */ updateScanMode(int newScanMode)107 boolean updateScanMode(int newScanMode) { 108 if (mSettings.getScanMode() == newScanMode) { 109 return false; 110 } 111 112 mSettings = 113 new ScanSettings.Builder() 114 .setScanMode(newScanMode) 115 .setCallbackType(mSettings.getCallbackType()) 116 .setScanResultType(mSettings.getScanResultType()) 117 .setReportDelay(mSettings.getReportDelayMillis()) 118 .setNumOfMatches(mSettings.getNumOfMatches()) 119 .setMatchMode(mSettings.getMatchMode()) 120 .setLegacy(mSettings.getLegacy()) 121 .setPhy(mSettings.getPhy()) 122 .build(); 123 return true; 124 } 125 } 126