WifiAutoJoinController.java revision 0510c350db16f6bd2930f0a5ace483efbfa681d5
1f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle/* 262f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle * Copyright (C) 2014 The Android Open Source Project 3f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * 4f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * Licensed under the Apache License, Version 2.0 (the "License"); 5f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * you may not use this file except in compliance with the License. 6f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * You may obtain a copy of the License at 7f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * 8f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * http://www.apache.org/licenses/LICENSE-2.0 9f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * 10f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * Unless required by applicable law or agreed to in writing, software 11f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * distributed under the License is distributed on an "AS IS" BASIS, 12f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * See the License for the specific language governing permissions and 14f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * limitations under the License. 15f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle */ 16f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 17f22d23092ab37286a5ef9d257d5bb32c421d2669vandwallepackage com.android.server.wifi; 18f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 19f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalleimport android.content.Context; 20f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalleimport android.net.NetworkKey; 21f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalleimport android.net.NetworkScoreManager; 220c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalleimport android.net.WifiKey; 2377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvistimport android.net.wifi.ScanResult; 2477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvistimport android.net.wifi.WifiConfiguration; 258639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidsonimport android.net.wifi.WifiConfiguration.KeyMgmt; 2677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvistimport android.net.wifi.WifiConnectionStatistics; 27f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalleimport android.os.Process; 2877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvistimport android.provider.Settings; 29c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalleimport android.text.TextUtils; 30f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalleimport android.util.Log; 31f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 32ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvistimport com.android.server.wifi.anqp.ANQPElement; 33ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvistimport com.android.server.wifi.anqp.Constants; 34ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvistimport com.android.server.wifi.hotspot2.ANQPData; 35ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvistimport com.android.server.wifi.hotspot2.AnqpCache; 36ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvistimport com.android.server.wifi.hotspot2.Chronograph; 37ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvistimport com.android.server.wifi.hotspot2.NetworkDetail; 38ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvistimport com.android.server.wifi.hotspot2.PasspointMatch; 39ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvistimport com.android.server.wifi.hotspot2.PasspointMatchInfo; 40ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvistimport com.android.server.wifi.hotspot2.SupplicantBridge; 41ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvistimport com.android.server.wifi.hotspot2.pps.HomeSP; 42ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist 4377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvistimport java.io.BufferedReader; 4477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvistimport java.io.IOException; 4577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvistimport java.io.StringReader; 460c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalleimport java.util.ArrayList; 4777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvistimport java.util.Arrays; 48d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpandeimport java.util.BitSet; 49ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvistimport java.util.Collection; 50dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalleimport java.util.Collections; 51dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalleimport java.util.Comparator; 52f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalleimport java.util.HashMap; 5377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvistimport java.util.Iterator; 54f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalleimport java.util.List; 55ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvistimport java.util.Map; 56f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 57f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle/** 58f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * AutoJoin controller is responsible for WiFi Connect decision 59f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * 60f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * It runs in the thread context of WifiStateMachine 61f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * 62f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle */ 63f22d23092ab37286a5ef9d257d5bb32c421d2669vandwallepublic class WifiAutoJoinController { 64f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 65f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle private Context mContext; 66f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle private WifiStateMachine mWifiStateMachine; 67f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle private WifiConfigStore mWifiConfigStore; 68f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle private WifiNative mWifiNative; 69f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 70f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle private NetworkScoreManager scoreManager; 71f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle private WifiNetworkScoreCache mNetworkScoreCache; 72f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 73f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle private static final String TAG = "WifiAutoJoinController "; 7431891afce40b903ada9b24ec12e3648ae6aa27b2Jan Nordqvist private static boolean DBG = false; 75ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle private static boolean VDBG = false; 76f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle private static final boolean mStaStaSupported = false; 77f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 78c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle public static int mScanResultMaximumAge = 40000; /* milliseconds unit */ 79833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle public static int mScanResultAutoJoinAge = 5000; /* milliseconds unit */ 80c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle 81453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle private String mCurrentConfigurationKey = null; //used by autojoin 82f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 8325ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande private final HashMap<String, ScanDetail> scanResultCache = new HashMap<>(); 84f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 85c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle private WifiConnectionStatistics mWifiConnectionStatistics; 86c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle 87dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle /** 88dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * Whether to allow connections to untrusted networks. 89dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle */ 908639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson private boolean mAllowUntrustedConnections = false; 918639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson 92c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle /* For debug purpose only: if the scored override a score */ 93c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle boolean didOverride = false; 94c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle 95931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Lose the non-auth failure blacklisting after 8 hours 964dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle private final static long loseBlackListHardMilli = 1000 * 60 * 60 * 8; 97931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Lose some temporary blacklisting after 30 minutes 984dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle private final static long loseBlackListSoftMilli = 1000 * 60 * 30; 9927355a942653264388e909a4276196ee63e57811vandwalle 100dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle /** 101dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * @see android.provider.Settings.Global#WIFI_EPHEMERAL_OUT_OF_RANGE_TIMEOUT_MS 102dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle */ 10316fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson private static final long DEFAULT_EPHEMERAL_OUT_OF_RANGE_TIMEOUT_MS = 1000 * 60; // 1 minute 10416fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson 105b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle public static final int AUTO_JOIN_IDLE = 0; 106b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle public static final int AUTO_JOIN_ROAMING = 1; 107b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle public static final int AUTO_JOIN_EXTENDED_ROAMING = 2; 108b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle public static final int AUTO_JOIN_OUT_OF_NETWORK_ROAMING = 3; 109b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle 11097b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle public static final int HIGH_THRESHOLD_MODIFIER = 5; 11197b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle 11287df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle public static final int MAX_RSSI_DELTA = 50; 11387df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle 1141ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // Below are AutoJoin wide parameters indicating if we should be aggressive before joining 1151ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // weak network. Note that we cannot join weak network that are going to be marked as unanted by 1161ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // ConnectivityService because this will trigger link flapping. 1171ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle /** 1181ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle * There was a non-blacklisted configuration that we bailed from because of a weak signal 1191ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle */ 1201ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle boolean didBailDueToWeakRssi = false; 1211ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle /** 1221ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle * number of time we consecutively bailed out of an eligible network because its signal 1231ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle * was too weak 1241ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle */ 1251ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle int weakRssiBailCount = 0; 1261ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle 127f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle WifiAutoJoinController(Context c, WifiStateMachine w, WifiConfigStore s, 128c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle WifiConnectionStatistics st, WifiNative n) { 129f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle mContext = c; 130f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle mWifiStateMachine = w; 131f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle mWifiConfigStore = s; 132f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle mWifiNative = n; 133f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle mNetworkScoreCache = null; 134c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle mWifiConnectionStatistics = st; 13521bc54cb37a0085b1c909cb4d55ebb12a2facefbvandwalle scoreManager = 13621bc54cb37a0085b1c909cb4d55ebb12a2facefbvandwalle (NetworkScoreManager) mContext.getSystemService(Context.NETWORK_SCORE_SERVICE); 137f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (scoreManager == null) 138f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle logDbg("Registered scoreManager NULL " + " service " + Context.NETWORK_SCORE_SERVICE); 139f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 140f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (scoreManager != null) { 141f13817203179f41620514718c8668ae7e418f8afJeff Davidson mNetworkScoreCache = new WifiNetworkScoreCache(mContext); 142f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle scoreManager.registerNetworkScoreCache(NetworkKey.TYPE_WIFI, mNetworkScoreCache); 143f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } else { 144f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle logDbg("No network score service: Couldnt register as a WiFi score Manager, type=" 145f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle + Integer.toString(NetworkKey.TYPE_WIFI) 146f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle + " service " + Context.NETWORK_SCORE_SERVICE); 147f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle mNetworkScoreCache = null; 148f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 149f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 150f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 151ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle void enableVerboseLogging(int verbose) { 152dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (verbose > 0) { 153abde872adced15dfb6781fb71959453d963326dbYuhao Zheng DBG = true; 154ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle VDBG = true; 155ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle } else { 156abde872adced15dfb6781fb71959453d963326dbYuhao Zheng DBG = false; 157ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle VDBG = false; 158ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle } 159ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle } 160ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle 161931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle /** 162931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * Flush out scan results older than mScanResultMaximumAge 163931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle */ 164f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle private void ageScanResultsOut(int delay) { 165f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (delay <= 0) { 166931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle delay = mScanResultMaximumAge; // Something sane 167f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 168b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle long milli = System.currentTimeMillis(); 169f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (VDBG) { 170f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle logDbg("ageScanResultsOut delay " + Integer.valueOf(delay) + " size " 171f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle + Integer.valueOf(scanResultCache.size()) + " now " + Long.valueOf(milli)); 172f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 173f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 174dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle Iterator<HashMap.Entry<String, ScanDetail>> iter = scanResultCache.entrySet().iterator(); 175f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle while (iter.hasNext()) { 176dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle HashMap.Entry<String, ScanDetail> entry = iter.next(); 17725ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande ScanDetail scanDetail = entry.getValue(); 17825ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande if ((scanDetail.getSeen() + delay) < milli) { 179f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle iter.remove(); 180f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 181f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 182f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 183f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 184ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist 185d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande void averageRssiAndRemoveFromCache(ScanResult result) { 186d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande // Fetch the previous instance for this result 18725ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande ScanDetail sd = scanResultCache.get(result.BSSID); 18825ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande if (sd != null) { 18925ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande ScanResult sr = sd.getScanResult(); 190d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande if (mWifiConfigStore.scanResultRssiLevelPatchUp != 0 191d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande && result.level == 0 192d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande && sr.level < -20) { 193d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande // A 'zero' RSSI reading is most likely a chip problem which returns 194d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande // an unknown RSSI, hence ignore it 195d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande result.level = sr.level; 196ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist } 197ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist 198d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande // If there was a previous cache result for this BSSID, average the RSSI values 199d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande result.averageRssi(sr.level, sr.seen, mScanResultMaximumAge); 200ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist 201d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande // Remove the previous Scan Result - this is not necessary 202d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande scanResultCache.remove(result.BSSID); 203d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande } else if (mWifiConfigStore.scanResultRssiLevelPatchUp != 0 && result.level == 0) { 204d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande // A 'zero' RSSI reading is most likely a chip problem which returns 205d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande // an unknown RSSI, hence initialize it to a sane value 206d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande result.level = mWifiConfigStore.scanResultRssiLevelPatchUp; 207ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist } 208ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist } 209ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist 210d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande void addToUnscoredNetworks(ScanResult result, List<NetworkKey> unknownScanResults) { 211d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande WifiKey wkey; 212d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande // Quoted SSIDs are the only one valid at this stage 213d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande try { 214d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande wkey = new WifiKey("\"" + result.SSID + "\"", result.BSSID); 215d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande } catch (IllegalArgumentException e) { 216d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande logDbg("AutoJoinController: received badly encoded SSID=[" + result.SSID + 217d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande "] ->skipping this network"); 218d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande wkey = null; 219d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande } 220d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande if (wkey != null) { 221d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande NetworkKey nkey = new NetworkKey(wkey); 222d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande //if we don't know this scan result then request a score from the scorer 223d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande unknownScanResults.add(nkey); 224ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist } 225d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande if (VDBG) { 226d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande String cap = ""; 227d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande if (result.capabilities != null) 228d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande cap = result.capabilities; 229d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande logDbg(result.SSID + " " + result.BSSID + " rssi=" 2300510c350db16f6bd2930f0a5ace483efbfa681d5Pierre Vandwalle + result.level + " cap " + cap + " tsf " + result.timestamp + " is not scored"); 231ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist } 232ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist } 233ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist 23477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist int addToScanCache(List<ScanDetail> scanList) { 235be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle int numScanResultsKnown = 0; // Record number of scan results we knew about 236be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle WifiConfiguration associatedConfig = null; 2377b581f46f6c9bc6edf0edd287d47106712fb2144vandwalle boolean didAssociate = false; 2388242cc81341c80ab5bc057ffdad99a3a1d95be5cvandwalle long now = System.currentTimeMillis(); 239f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 2400c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle ArrayList<NetworkKey> unknownScanResults = new ArrayList<NetworkKey>(); 2410c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle 242dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle for (ScanDetail scanDetail : scanList) { 24377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist ScanResult result = scanDetail.getScanResult(); 2441fcf3c6d2b9ed65573e1e7c55fc5a30ebd364c4fYuhao Zheng if (result.SSID == null) continue; 245c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle 2460510c350db16f6bd2930f0a5ace483efbfa681d5Pierre Vandwalle // Fetch previous instance 2470510c350db16f6bd2930f0a5ace483efbfa681d5Pierre Vandwalle ScanDetail sd = scanResultCache.get(result.BSSID); 2480510c350db16f6bd2930f0a5ace483efbfa681d5Pierre Vandwalle if (sd != null) { 2490510c350db16f6bd2930f0a5ace483efbfa681d5Pierre Vandwalle ScanResult sr = sd.getScanResult(); 2500510c350db16f6bd2930f0a5ace483efbfa681d5Pierre Vandwalle if (sr.timestamp != 0 && sr.timestamp == result.timestamp) { 2510510c350db16f6bd2930f0a5ace483efbfa681d5Pierre Vandwalle logDbg(" addToScanCache skip stale " + result.SSID + " " + result.BSSID 2520510c350db16f6bd2930f0a5ace483efbfa681d5Pierre Vandwalle + " tsf=" + result.timestamp + " age=" + (now - result.seen) 2530510c350db16f6bd2930f0a5ace483efbfa681d5Pierre Vandwalle + " seen= " + result.seen + " now=" + now); 2540510c350db16f6bd2930f0a5ace483efbfa681d5Pierre Vandwalle continue; 2550510c350db16f6bd2930f0a5ace483efbfa681d5Pierre Vandwalle } 2560510c350db16f6bd2930f0a5ace483efbfa681d5Pierre Vandwalle } 2570510c350db16f6bd2930f0a5ace483efbfa681d5Pierre Vandwalle 258c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle // Make sure we record the last time we saw this result 25925ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande scanDetail.setSeen(); 260f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 261d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande averageRssiAndRemoveFromCache(result); 262e8c89583e489d451880471b7cc7659bd9fa802f4vandwalle 263e8c89583e489d451880471b7cc7659bd9fa802f4vandwalle if (!mNetworkScoreCache.isScoredNetwork(result)) { 264d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande addToUnscoredNetworks(result, unknownScanResults); 2650c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle } else { 266e8c89583e489d451880471b7cc7659bd9fa802f4vandwalle if (VDBG) { 2677b581f46f6c9bc6edf0edd287d47106712fb2144vandwalle String cap = ""; 2687b581f46f6c9bc6edf0edd287d47106712fb2144vandwalle if (result.capabilities != null) 2697b581f46f6c9bc6edf0edd287d47106712fb2144vandwalle cap = result.capabilities; 270e8c89583e489d451880471b7cc7659bd9fa802f4vandwalle int score = mNetworkScoreCache.getNetworkScore(result); 271e8c89583e489d451880471b7cc7659bd9fa802f4vandwalle logDbg(result.SSID + " " + result.BSSID + " rssi=" 2727b581f46f6c9bc6edf0edd287d47106712fb2144vandwalle + result.level + " cap " + cap + " is scored : " + score); 2730c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle } 274f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 275f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 276e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // scanResultCache.put(result.BSSID, new ScanResult(result)); 27725ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande scanResultCache.put(result.BSSID, scanDetail); 278be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle // Add this BSSID to the scanResultCache of a Saved WifiConfiguration 279d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande didAssociate = mWifiConfigStore.updateSavedNetworkHistory(scanDetail); 280f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 281be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle // If not successful, try to associate this BSSID to an existing Saved WifiConfiguration 2827b581f46f6c9bc6edf0edd287d47106712fb2144vandwalle if (!didAssociate) { 283be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle // We couldn't associate the scan result to a Saved WifiConfiguration 284c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle // Hence it is untrusted 285c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle result.untrusted = true; 2860d616ef3bf635dff8722e064c0be842676390ed8vandwalle } else { 2870d616ef3bf635dff8722e064c0be842676390ed8vandwalle // If the scan result has been blacklisted fir 18 hours -> unblacklist 2880d616ef3bf635dff8722e064c0be842676390ed8vandwalle if ((now - result.blackListTimestamp) > loseBlackListHardMilli) { 2890d616ef3bf635dff8722e064c0be842676390ed8vandwalle result.setAutoJoinStatus(ScanResult.ENABLED); 2900d616ef3bf635dff8722e064c0be842676390ed8vandwalle } 291f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 2927b581f46f6c9bc6edf0edd287d47106712fb2144vandwalle if (didAssociate) { 293be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle numScanResultsKnown++; 294dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle result.isAutoJoinCandidate++; 295a0708b09ad17b086c008ab100aec7143d7613c80vandwalle } else { 296a0708b09ad17b086c008ab100aec7143d7613c80vandwalle result.isAutoJoinCandidate = 0; 297be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle } 298f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 2990c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle 3000c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle if (unknownScanResults.size() != 0) { 3010c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle NetworkKey[] newKeys = 3020c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle unknownScanResults.toArray(new NetworkKey[unknownScanResults.size()]); 303931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Kick the score manager, we will get updated scores asynchronously 3040c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle scoreManager.requestScores(newKeys); 3050c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle } 306be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle return numScanResultsKnown; 307f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 308f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 309f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle void logDbg(String message) { 3100888ce6f90bdaeee799dd8361ea4781e23a33b87vandwalle logDbg(message, false); 311ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle } 312ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle 313ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle void logDbg(String message, boolean stackTrace) { 314ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle if (stackTrace) { 31533f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande Log.d(TAG, message + " stack:" 316ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle + Thread.currentThread().getStackTrace()[2].getMethodName() + " - " 317ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle + Thread.currentThread().getStackTrace()[3].getMethodName() + " - " 318ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle + Thread.currentThread().getStackTrace()[4].getMethodName() + " - " 319ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle + Thread.currentThread().getStackTrace()[5].getMethodName()); 320ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle } else { 32133f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande Log.d(TAG, message); 322ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle } 323f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 324f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 325931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Called directly from WifiStateMachine 326be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle int newSupplicantResults(boolean doAutoJoin) { 327be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle int numScanResultsKnown; 32877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist List<ScanDetail> scanList = mWifiStateMachine.getScanResultsListNoCopyUnsync(); 329be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle numScanResultsKnown = addToScanCache(scanList); 330f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle ageScanResultsOut(mScanResultMaximumAge); 331be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle if (DBG) { 332be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle logDbg("newSupplicantResults size=" + Integer.valueOf(scanResultCache.size()) 333dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + " known=" + numScanResultsKnown + " " 334dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + doAutoJoin); 335be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle } 3367806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle if (doAutoJoin) { 3377806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle attemptAutoJoin(); 3387806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle } 339005c1ef113192f898499a407dd266393a8d6b076vandwalle mWifiConfigStore.writeKnownNetworkHistory(false); 340be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle return numScanResultsKnown; 341f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 342f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 343f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 344931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle /** 345931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * Not used at the moment 346f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * should be a call back from WifiScanner HAL ?? 347f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * this function is not hooked and working yet, it will receive scan results from WifiScanners 348f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * with the list of IEs,then populate the capabilities by parsing the IEs and inject the scan 349f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * results as normal. 350f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle */ 351f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle void newHalScanResults() { 35277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist List<ScanDetail> scanList = null;//mWifiScanner.syncGetScanResultsList(); 353f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle String akm = WifiParser.parse_akm(null, null); 354f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle logDbg(akm); 355f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle addToScanCache(scanList); 356f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle ageScanResultsOut(0); 357f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle attemptAutoJoin(); 358005c1ef113192f898499a407dd266393a8d6b076vandwalle mWifiConfigStore.writeKnownNetworkHistory(false); 359f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 360f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 361931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle /** 362dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * network link quality changed, called directly from WifiTrafficPoller, 363931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * or by listening to Link Quality intent 364931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle */ 365f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle void linkQualitySignificantChange() { 366f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle attemptAutoJoin(); 367f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 368f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 369931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle /** 370f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * compare a WifiConfiguration against the current network, return a delta score 371f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * If not associated, and the candidate will always be better 372f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * For instance if the candidate is a home network versus an unknown public wifi, 373f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * the delta will be infinite, else compare Kepler scores etc… 374b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle * Negatve return values from this functions are meaningless per se, just trying to 37521d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle * keep t````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````hem distinct for debug purpose (i.e. -1, -2 etc...) 376931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle */ 377e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle private int compareNetwork(WifiConfiguration candidate, 378e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle String lastSelectedConfiguration) { 379b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle if (candidate == null) 380b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle return -3; 381b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle 382f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle WifiConfiguration currentNetwork = mWifiStateMachine.getCurrentWifiConfiguration(); 383b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle if (currentNetwork == null) { 384c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle // Return any absurdly high score, if we are not connected there is no current 385c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle // network to... 386dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle return 1000; 387b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle } 388f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 389f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (candidate.configKey(true).equals(currentNetwork.configKey(true))) { 390b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle return -2; 391f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 392f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 393b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle if (DBG) { 394e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle logDbg("compareNetwork will compare " + candidate.configKey() 395e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + " with current " + currentNetwork.configKey()); 396b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle } 397833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle int order = compareWifiConfigurations(currentNetwork, candidate); 398e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle 399e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // The lastSelectedConfiguration is the configuration the user has manually selected 400e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // thru WifiPicker, or that a 3rd party app asked us to connect to via the 401e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // enableNetwork with disableOthers=true WifiManager API 402e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // As this is a direct user choice, we strongly prefer this configuration, 403e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // hence give +/-100 404e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle if ((lastSelectedConfiguration != null) 405e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle && currentNetwork.configKey().equals(lastSelectedConfiguration)) { 406e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // currentNetwork is the last selected configuration, 407e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // so keep it above connect choices (+/-60) and 408e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // above RSSI/scorer based selection of linked configuration (+/- 50) 409e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // by reducing order by -100 410e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle order = order - 100; 411dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 412e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle logDbg(" ...and prefers -100 " + currentNetwork.configKey() 413e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + " over " + candidate.configKey() 414e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + " because it is the last selected -> " 415e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + Integer.toString(order)); 416e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle } 417e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle } else if ((lastSelectedConfiguration != null) 418e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle && candidate.configKey().equals(lastSelectedConfiguration)) { 419e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // candidate is the last selected configuration, 420e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // so keep it above connect choices (+/-60) and 421e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // above RSSI/scorer based selection of linked configuration (+/- 50) 422e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // by increasing order by +100 423e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle order = order + 100; 424dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 425e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle logDbg(" ...and prefers +100 " + candidate.configKey() 426e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + " over " + currentNetwork.configKey() 427e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + " because it is the last selected -> " 428e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + Integer.toString(order)); 429e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle } 430e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle } 431e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle 432ede507649471f1113e9e1919812115ca5a6bc0c8vandwalle return order; 433f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 434f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 435ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle /** 436ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle * update the network history fields fo that configuration 437ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle * - if userTriggered, we mark the configuration as "non selfAdded" since the user has seen it 438ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle * and took over management 439ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle * - if it is a "connect", remember which network were there at the point of the connect, so 440ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle * as those networks get a relative lower score than the selected configuration 44162f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle * 442ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle * @param netId 443ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle * @param userTriggered : if the update come from WiFiManager 444dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * @param connect : if the update includes a connect 445931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle */ 44662f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle public void updateConfigurationHistory(int netId, boolean userTriggered, boolean connect) { 447f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle WifiConfiguration selected = mWifiConfigStore.getWifiConfiguration(netId); 448f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (selected == null) { 449c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle logDbg("updateConfigurationHistory nid=" + netId + " no selected configuration!"); 450f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle return; 451f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 452f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 453e86c962bb99a8b126ed64ddcc6b112161549e26dvandwalle if (selected.SSID == null) { 454c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle logDbg("updateConfigurationHistory nid=" + netId + 455c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle " no SSID in selected configuration!"); 456e86c962bb99a8b126ed64ddcc6b112161549e26dvandwalle return; 457e86c962bb99a8b126ed64ddcc6b112161549e26dvandwalle } 458e86c962bb99a8b126ed64ddcc6b112161549e26dvandwalle 45962f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle if (userTriggered) { 460931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Reenable autojoin for this network, 46162f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle // since the user want to connect to this configuration 46227355a942653264388e909a4276196ee63e57811vandwalle selected.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_ENABLED); 46362f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle selected.selfAdded = false; 464e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle selected.dirty = true; 46562f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle } 466f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 467992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle if (DBG && userTriggered) { 468f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (selected.connectChoices != null) { 469ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle logDbg("updateConfigurationHistory will update " 470f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle + Integer.toString(netId) + " now: " 471992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle + Integer.toString(selected.connectChoices.size()) 472992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle + " uid=" + Integer.toString(selected.creatorUid), true); 473f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } else { 474ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle logDbg("updateConfigurationHistory will update " 475992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle + Integer.toString(netId) 476992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle + " uid=" + Integer.toString(selected.creatorUid), true); 477f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 478f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 479f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 480ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle if (connect && userTriggered) { 481ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle boolean found = false; 4822451dbcc4f9641df188326215b204b798eb70c46vandwalle int choice = 0; 483c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle int size = 0; 4849f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle 4859f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle // Reset the triggered disabled count, because user wanted to connect to this 4869f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle // configuration, and we were not. 4879f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle selected.numUserTriggeredWifiDisableLowRSSI = 0; 4889f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle selected.numUserTriggeredWifiDisableBadRSSI = 0; 4899f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle selected.numUserTriggeredWifiDisableNotHighRSSI = 0; 4909f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle selected.numUserTriggeredJoinAttempts++; 4919f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle 49262f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle List<WifiConfiguration> networks = 49362f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle mWifiConfigStore.getRecentConfiguredNetworks(12000, false); 494c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle if (networks != null) size = networks.size(); 495c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle logDbg("updateConfigurationHistory found " + size + " networks"); 49662f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle if (networks != null) { 49762f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle for (WifiConfiguration config : networks) { 498992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle if (DBG) { 499992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle logDbg("updateConfigurationHistory got " + config.SSID + " nid=" 500992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle + Integer.toString(config.networkId)); 501992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle } 502f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 50362f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle if (selected.configKey(true).equals(config.configKey(true))) { 504ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle found = true; 50562f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle continue; 50662f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle } 507f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 50887df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle // If the selection was made while config was visible with reasonably good RSSI 50987df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle // then register the user preference, else ignore 51087df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle if (config.visibility == null || 51187df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle (config.visibility.rssi24 < mWifiConfigStore.thresholdBadRssi24.get() 51287df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle && config.visibility.rssi5 < mWifiConfigStore.thresholdBadRssi5.get()) 51387df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle ) { 51487df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle continue; 51562f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle } 516f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 51787df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle choice = MAX_RSSI_DELTA + 10; // Make sure the choice overrides the RSSI diff 51887df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle 519931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // The selected configuration was preferred over a recently seen config 520931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // hence remember the user's choice: 521931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // add the recently seen config to the selected's connectChoices array 522ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle 523ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle if (selected.connectChoices == null) { 524ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle selected.connectChoices = new HashMap<String, Integer>(); 525ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle } 526ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle 527ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle logDbg("updateConfigurationHistory add a choice " + selected.configKey(true) 5280888ce6f90bdaeee799dd8361ea4781e23a33b87vandwalle + " over " + config.configKey(true) 5292451dbcc4f9641df188326215b204b798eb70c46vandwalle + " choice " + Integer.toString(choice)); 530cf5b8eb8a08c45bd4a82f1f4bb789c8a1b08744fvandwalle 5312f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle // Add the visible config to the selected's connect choice list 5322f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle selected.connectChoices.put(config.configKey(true), choice); 533f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 53462f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle if (config.connectChoices != null) { 535ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle if (VDBG) { 536ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle logDbg("updateConfigurationHistory will remove " 53762f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle + selected.configKey(true) + " from " + config.configKey(true)); 538ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle } 539931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Remove the selected from the recently seen config's connectChoice list 54062f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle config.connectChoices.remove(selected.configKey(true)); 5410888ce6f90bdaeee799dd8361ea4781e23a33b87vandwalle 5420888ce6f90bdaeee799dd8361ea4781e23a33b87vandwalle if (selected.linkedConfigurations != null) { 543dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle // Remove the selected's linked configuration from the 544dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle // recently seen config's connectChoice list 545dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle for (String key : selected.linkedConfigurations.keySet()) { 546dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle config.connectChoices.remove(key); 547dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 5480888ce6f90bdaeee799dd8361ea4781e23a33b87vandwalle } 54962f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle } 550ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle } 551ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle if (found == false) { 552dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle // We haven't found the configuration that the user just selected in our 553dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle // scan cache. 554dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle // In that case we will need a new scan before attempting to connect to this 555dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle // configuration anyhow and thus we can process the scan results then. 556dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle logDbg("updateConfigurationHistory try to connect to an old network!! : " 557dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + selected.configKey()); 55862f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle } 559f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 56062f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle if (selected.connectChoices != null) { 56162f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle if (VDBG) 562ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle logDbg("updateConfigurationHistory " + Integer.toString(netId) 56362f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle + " now: " + Integer.toString(selected.connectChoices.size())); 56462f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle } 565f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 566f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 567992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle 568931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // TODO: write only if something changed 569992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle if (userTriggered || connect) { 570005c1ef113192f898499a407dd266393a8d6b076vandwalle mWifiConfigStore.writeKnownNetworkHistory(false); 571992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle } 572f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 573f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 57421d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle int getConnectChoice(WifiConfiguration source, WifiConfiguration target, boolean strict) { 57521d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle int choice = 0; 5762451dbcc4f9641df188326215b204b798eb70c46vandwalle if (source == null || target == null) { 5772451dbcc4f9641df188326215b204b798eb70c46vandwalle return 0; 578f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 579f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 5802451dbcc4f9641df188326215b204b798eb70c46vandwalle if (source.connectChoices != null 5812451dbcc4f9641df188326215b204b798eb70c46vandwalle && source.connectChoices.containsKey(target.configKey(true))) { 582a20305612380c956fa84b1e80523eb7719f62fd1Pierre Vandwalle Integer val = source.connectChoices.get(target.configKey(true)); 583a20305612380c956fa84b1e80523eb7719f62fd1Pierre Vandwalle if (val != null) { 584a20305612380c956fa84b1e80523eb7719f62fd1Pierre Vandwalle choice = val; 585a20305612380c956fa84b1e80523eb7719f62fd1Pierre Vandwalle } 5862451dbcc4f9641df188326215b204b798eb70c46vandwalle } else if (source.linkedConfigurations != null) { 587f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle for (String key : source.linkedConfigurations.keySet()) { 588f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle WifiConfiguration config = mWifiConfigStore.getWifiConfiguration(key); 589f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (config != null) { 590f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (config.connectChoices != null) { 591a20305612380c956fa84b1e80523eb7719f62fd1Pierre Vandwalle Integer val = config.connectChoices.get(target.configKey(true)); 592a20305612380c956fa84b1e80523eb7719f62fd1Pierre Vandwalle if (val != null) { 593a20305612380c956fa84b1e80523eb7719f62fd1Pierre Vandwalle choice = val; 594a20305612380c956fa84b1e80523eb7719f62fd1Pierre Vandwalle } 595f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 596f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 597f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 5982451dbcc4f9641df188326215b204b798eb70c46vandwalle } 5992451dbcc4f9641df188326215b204b798eb70c46vandwalle 60021d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle if (!strict && choice == 0) { 60133f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande // We didn't find the connect choice; fallback to some default choices 60233f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande int sourceScore = getSecurityScore(source); 60333f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande int targetScore = getSecurityScore(target); 6048eefaf2c281b44fb7a4d951ba587f447800c4b4fVinit Deshpande choice = sourceScore - targetScore; 60533f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande } 60633f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande 60733f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande return choice; 6082451dbcc4f9641df188326215b204b798eb70c46vandwalle } 6092451dbcc4f9641df188326215b204b798eb70c46vandwalle 61033f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande int compareWifiConfigurationsFromVisibility(WifiConfiguration.Visibility a, int aRssiBoost, 611dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle String dbgA, WifiConfiguration.Visibility b, int bRssiBoost, String dbgB) { 6122451dbcc4f9641df188326215b204b798eb70c46vandwalle 613815788ba7838fc54310baed3deb9b95548e0ce69vandwalle int aRssiBoost5 = 0; // 5GHz RSSI boost to apply for purpose band selection (5GHz pref) 614815788ba7838fc54310baed3deb9b95548e0ce69vandwalle int bRssiBoost5 = 0; // 5GHz RSSI boost to apply for purpose band selection (5GHz pref) 615815788ba7838fc54310baed3deb9b95548e0ce69vandwalle 616815788ba7838fc54310baed3deb9b95548e0ce69vandwalle int aScore = 0; 617815788ba7838fc54310baed3deb9b95548e0ce69vandwalle int bScore = 0; 618815788ba7838fc54310baed3deb9b95548e0ce69vandwalle 619815788ba7838fc54310baed3deb9b95548e0ce69vandwalle boolean aPrefers5GHz = false; 620815788ba7838fc54310baed3deb9b95548e0ce69vandwalle boolean bPrefers5GHz = false; 6214dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 6222451dbcc4f9641df188326215b204b798eb70c46vandwalle /** 623815788ba7838fc54310baed3deb9b95548e0ce69vandwalle * Calculate a boost to apply to RSSI value of configuration we want to join on 5GHz: 624815788ba7838fc54310baed3deb9b95548e0ce69vandwalle * Boost RSSI value of 5GHz bands iff the base value is better than threshold, 625815788ba7838fc54310baed3deb9b95548e0ce69vandwalle * penalize the RSSI value of 5GHz band iff the base value is lower than threshold 6262451dbcc4f9641df188326215b204b798eb70c46vandwalle * This implements band preference where we prefer 5GHz if RSSI5 is good enough, whereas 6272451dbcc4f9641df188326215b204b798eb70c46vandwalle * we prefer 2.4GHz otherwise. 6282451dbcc4f9641df188326215b204b798eb70c46vandwalle */ 62933f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande aRssiBoost5 = rssiBoostFrom5GHzRssi(a.rssi5, dbgA + "->"); 63033f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande bRssiBoost5 = rssiBoostFrom5GHzRssi(b.rssi5, dbgB + "->"); 6312451dbcc4f9641df188326215b204b798eb70c46vandwalle 632815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // Select which band to use for a 63333f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande if (a.rssi5 + aRssiBoost5 > a.rssi24) { 6342451dbcc4f9641df188326215b204b798eb70c46vandwalle // Prefer a's 5GHz 635815788ba7838fc54310baed3deb9b95548e0ce69vandwalle aPrefers5GHz = true; 636815788ba7838fc54310baed3deb9b95548e0ce69vandwalle } 637815788ba7838fc54310baed3deb9b95548e0ce69vandwalle 638815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // Select which band to use for b 63933f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande if (b.rssi5 + bRssiBoost5 > b.rssi24) { 640815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // Prefer b's 5GHz 641815788ba7838fc54310baed3deb9b95548e0ce69vandwalle bPrefers5GHz = true; 642815788ba7838fc54310baed3deb9b95548e0ce69vandwalle } 643815788ba7838fc54310baed3deb9b95548e0ce69vandwalle 644815788ba7838fc54310baed3deb9b95548e0ce69vandwalle if (aPrefers5GHz) { 645815788ba7838fc54310baed3deb9b95548e0ce69vandwalle if (bPrefers5GHz) { 646815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // If both a and b are on 5GHz then we don't apply the 5GHz RSSI boost to either 647815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // one, but directly compare the RSSI values, this improves stability, 648815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // since the 5GHz RSSI boost can introduce large fluctuations 64933f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande aScore = a.rssi5 + aRssiBoost; 650815788ba7838fc54310baed3deb9b95548e0ce69vandwalle } else { 651815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // If only a is on 5GHz, then apply the 5GHz preference boost to a 65233f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande aScore = a.rssi5 + aRssiBoost + aRssiBoost5; 653815788ba7838fc54310baed3deb9b95548e0ce69vandwalle } 6542451dbcc4f9641df188326215b204b798eb70c46vandwalle } else { 65533f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande aScore = a.rssi24 + aRssiBoost; 656f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 6572451dbcc4f9641df188326215b204b798eb70c46vandwalle 658815788ba7838fc54310baed3deb9b95548e0ce69vandwalle if (bPrefers5GHz) { 659815788ba7838fc54310baed3deb9b95548e0ce69vandwalle if (aPrefers5GHz) { 660815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // If both a and b are on 5GHz then we don't apply the 5GHz RSSI boost to either 661815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // one, but directly compare the RSSI values, this improves stability, 662815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // since the 5GHz RSSI boost can introduce large fluctuations 66333f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande bScore = b.rssi5 + bRssiBoost; 664815788ba7838fc54310baed3deb9b95548e0ce69vandwalle } else { 665815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // If only b is on 5GHz, then apply the 5GHz preference boost to b 66633f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande bScore = b.rssi5 + bRssiBoost + bRssiBoost5; 667815788ba7838fc54310baed3deb9b95548e0ce69vandwalle } 668815788ba7838fc54310baed3deb9b95548e0ce69vandwalle } else { 66933f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande bScore = b.rssi24 + bRssiBoost; 670815788ba7838fc54310baed3deb9b95548e0ce69vandwalle } 67133f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande 672815788ba7838fc54310baed3deb9b95548e0ce69vandwalle if (VDBG) { 67333f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande logDbg(" " + dbgA + " is5=" + aPrefers5GHz + " score=" + aScore 67433f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande + " " + dbgB + " is5=" + bPrefers5GHz + " score=" + bScore); 675815788ba7838fc54310baed3deb9b95548e0ce69vandwalle } 676f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle 677f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle // Debug only, record RSSI comparison parameters 67833f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande if (a != null) { 67933f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande a.score = aScore; 68033f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande a.currentNetworkBoost = aRssiBoost; 68133f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande a.bandPreferenceBoost = aRssiBoost5; 682f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle } 68333f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande if (b != null) { 68433f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande b.score = bScore; 68533f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande b.currentNetworkBoost = bRssiBoost; 68633f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande b.bandPreferenceBoost = bRssiBoost5; 687f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle } 688f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle 689815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // Compare a and b 690815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // If a score is higher then a > b and the order is descending (negative) 691815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // If b score is higher then a < b and the order is ascending (positive) 692815788ba7838fc54310baed3deb9b95548e0ce69vandwalle return bScore - aScore; 693f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 694f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 6952451dbcc4f9641df188326215b204b798eb70c46vandwalle // Compare WifiConfiguration by RSSI, and return a comparison value in the range [-50, +50] 6962451dbcc4f9641df188326215b204b798eb70c46vandwalle // The result represents "approximately" an RSSI difference measured in dBM 6972451dbcc4f9641df188326215b204b798eb70c46vandwalle // Adjusted with various parameters: 6982451dbcc4f9641df188326215b204b798eb70c46vandwalle // +) current network gets a +15 boost 6992451dbcc4f9641df188326215b204b798eb70c46vandwalle // +) 5GHz signal, if they are strong enough, get a +15 or +25 boost, representing the 7002451dbcc4f9641df188326215b204b798eb70c46vandwalle // fact that at short range we prefer 5GHz band as it is cleaner of interference and 7012451dbcc4f9641df188326215b204b798eb70c46vandwalle // provides for wider channels 7022451dbcc4f9641df188326215b204b798eb70c46vandwalle int compareWifiConfigurationsRSSI(WifiConfiguration a, WifiConfiguration b, 7032451dbcc4f9641df188326215b204b798eb70c46vandwalle String currentConfiguration) { 704f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle int order = 0; 7052451dbcc4f9641df188326215b204b798eb70c46vandwalle 7062451dbcc4f9641df188326215b204b798eb70c46vandwalle // Boost used so as to favor current config 7072451dbcc4f9641df188326215b204b798eb70c46vandwalle int aRssiBoost = 0; 7082451dbcc4f9641df188326215b204b798eb70c46vandwalle int bRssiBoost = 0; 7092451dbcc4f9641df188326215b204b798eb70c46vandwalle 7102451dbcc4f9641df188326215b204b798eb70c46vandwalle // Retrieve the visibility 711f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle WifiConfiguration.Visibility astatus = a.visibility; 712f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle WifiConfiguration.Visibility bstatus = b.visibility; 713f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (astatus == null || bstatus == null) { 7142451dbcc4f9641df188326215b204b798eb70c46vandwalle // Error visibility wasn't set 715b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" compareWifiConfigurations NULL band status!"); 716f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle return 0; 717f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 7182451dbcc4f9641df188326215b204b798eb70c46vandwalle 7192451dbcc4f9641df188326215b204b798eb70c46vandwalle // Apply Hysteresis, boost RSSI of current configuration 7202451dbcc4f9641df188326215b204b798eb70c46vandwalle if (null != currentConfiguration) { 7212451dbcc4f9641df188326215b204b798eb70c46vandwalle if (a.configKey().equals(currentConfiguration)) { 72293a1fddee50a244d31036cddae6b7db6630fd93dvandwalle aRssiBoost = mWifiConfigStore.currentNetworkBoost; 7232451dbcc4f9641df188326215b204b798eb70c46vandwalle } else if (b.configKey().equals(currentConfiguration)) { 72493a1fddee50a244d31036cddae6b7db6630fd93dvandwalle bRssiBoost = mWifiConfigStore.currentNetworkBoost; 7252451dbcc4f9641df188326215b204b798eb70c46vandwalle } 7262451dbcc4f9641df188326215b204b798eb70c46vandwalle } 7272451dbcc4f9641df188326215b204b798eb70c46vandwalle 728dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 729b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" compareWifiConfigurationsRSSI: " + a.configKey() 730dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + " rssi=" + Integer.toString(astatus.rssi24) 731dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + "," + Integer.toString(astatus.rssi5) 732dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + " boost=" + Integer.toString(aRssiBoost) 733dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + " " + b.configKey() + " rssi=" 734dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + Integer.toString(bstatus.rssi24) + "," 735dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + Integer.toString(bstatus.rssi5) 736dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + " boost=" + Integer.toString(bRssiBoost) 7372451dbcc4f9641df188326215b204b798eb70c46vandwalle ); 738f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 7392451dbcc4f9641df188326215b204b798eb70c46vandwalle 74033f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande order = compareWifiConfigurationsFromVisibility( 74133f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande a.visibility, aRssiBoost, a.configKey(), 74233f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande b.visibility, bRssiBoost, b.configKey()); 7432451dbcc4f9641df188326215b204b798eb70c46vandwalle 74487df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle // Normalize the order to [-50, +50] = [ -MAX_RSSI_DELTA, MAX_RSSI_DELTA] 74587df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle if (order > MAX_RSSI_DELTA) order = MAX_RSSI_DELTA; 74687df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle else if (order < -MAX_RSSI_DELTA) order = -MAX_RSSI_DELTA; 7472451dbcc4f9641df188326215b204b798eb70c46vandwalle 7482451dbcc4f9641df188326215b204b798eb70c46vandwalle if (VDBG) { 7492451dbcc4f9641df188326215b204b798eb70c46vandwalle String prefer = " = "; 7502451dbcc4f9641df188326215b204b798eb70c46vandwalle if (order > 0) { 7512451dbcc4f9641df188326215b204b798eb70c46vandwalle prefer = " < "; // Ascending 7522451dbcc4f9641df188326215b204b798eb70c46vandwalle } else if (order < 0) { 7532451dbcc4f9641df188326215b204b798eb70c46vandwalle prefer = " > "; // Descending 7542451dbcc4f9641df188326215b204b798eb70c46vandwalle } 755b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" compareWifiConfigurationsRSSI " + a.configKey() 7562451dbcc4f9641df188326215b204b798eb70c46vandwalle + " rssi=(" + a.visibility.rssi24 7572451dbcc4f9641df188326215b204b798eb70c46vandwalle + "," + a.visibility.rssi5 7582451dbcc4f9641df188326215b204b798eb70c46vandwalle + ") num=(" + a.visibility.num24 7592451dbcc4f9641df188326215b204b798eb70c46vandwalle + "," + a.visibility.num5 + ")" 7602451dbcc4f9641df188326215b204b798eb70c46vandwalle + prefer + b.configKey() 7612451dbcc4f9641df188326215b204b798eb70c46vandwalle + " rssi=(" + b.visibility.rssi24 7622451dbcc4f9641df188326215b204b798eb70c46vandwalle + "," + b.visibility.rssi5 7632451dbcc4f9641df188326215b204b798eb70c46vandwalle + ") num=(" + b.visibility.num24 7642451dbcc4f9641df188326215b204b798eb70c46vandwalle + "," + b.visibility.num5 + ")" 7652451dbcc4f9641df188326215b204b798eb70c46vandwalle + " -> " + order); 7662451dbcc4f9641df188326215b204b798eb70c46vandwalle } 7672451dbcc4f9641df188326215b204b798eb70c46vandwalle 768f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle return order; 769f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 770f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 771833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle /** 772833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle * b/18490330 only use scorer for untrusted networks 773dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * <p/> 774dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * int compareWifiConfigurationsWithScorer(WifiConfiguration a, WifiConfiguration b) { 775dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * <p/> 776dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * boolean aIsActive = false; 777dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * boolean bIsActive = false; 778dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * <p/> 779dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * // Apply Hysteresis : boost RSSI of current configuration before 780dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * // looking up the score 781dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * if (null != mCurrentConfigurationKey) { 782dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * if (a.configKey().equals(mCurrentConfigurationKey)) { 783dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * aIsActive = true; 784dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * } else if (b.configKey().equals(mCurrentConfigurationKey)) { 785dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * bIsActive = true; 786dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * } 787dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * } 788dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * int scoreA = getConfigNetworkScore(a, mScanResultAutoJoinAge, aIsActive); 789dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * int scoreB = getConfigNetworkScore(b, mScanResultAutoJoinAge, bIsActive); 790dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * <p/> 791dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * // Both configurations need to have a score for the scorer to be used 792dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * // ...and the scores need to be different:-) 793dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * if (scoreA == WifiNetworkScoreCache.INVALID_NETWORK_SCORE 794dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * || scoreB == WifiNetworkScoreCache.INVALID_NETWORK_SCORE) { 795dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * if (VDBG) { 796dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * logDbg(" compareWifiConfigurationsWithScorer no-scores: " 797dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + a.configKey() 798dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + " " 799dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + b.configKey()); 800dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * } 801dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * return 0; 802dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * } 803dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * <p/> 804dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * if (VDBG) { 805dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * String prefer = " = "; 806dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * if (scoreA < scoreB) { 807dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * prefer = " < "; 808dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * } if (scoreA > scoreB) { 809dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * prefer = " > "; 810dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * } 811dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * logDbg(" compareWifiConfigurationsWithScorer " + a.configKey() 812dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + " rssi=(" + a.visibility.rssi24 813dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + "," + a.visibility.rssi5 814dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + ") num=(" + a.visibility.num24 815dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + "," + a.visibility.num5 + ")" 816dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + " sc=" + scoreA 817dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + prefer + b.configKey() 818dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + " rssi=(" + b.visibility.rssi24 819dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + "," + b.visibility.rssi5 820dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + ") num=(" + b.visibility.num24 821dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + "," + b.visibility.num5 + ")" 822dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + " sc=" + scoreB 823dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + " -> " + Integer.toString(scoreB - scoreA)); 824dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * } 825dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * <p/> 826dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * // If scoreA > scoreB, the comparison is descending hence the return value is negative 827dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * return scoreB - scoreA; 828dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * } 829833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle */ 8302451dbcc4f9641df188326215b204b798eb70c46vandwalle 831d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande int getSecurityScore(WifiConfiguration config) { 832d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande 833d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande if (TextUtils.isEmpty(config.SSID) == false) { 834d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande if (config.allowedKeyManagement.get(KeyMgmt.WPA_EAP) 835d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande || config.allowedKeyManagement.get(KeyMgmt.WPA_PSK) 836d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande || config.allowedKeyManagement.get(KeyMgmt.WPA2_PSK)) { 837d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande /* enterprise or PSK networks get highest score */ 838d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande return 100; 839d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande } else if (config.allowedKeyManagement.get(KeyMgmt.NONE)) { 840d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande /* open networks have lowest score */ 841d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande return 33; 842d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande } 843d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande } else if (TextUtils.isEmpty(config.FQDN) == false) { 844d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande /* passpoint networks have medium preference */ 845d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande return 66; 846d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande } 847d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande 848d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande /* bad network */ 849d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande return 0; 850d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande } 851d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande 852f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle int compareWifiConfigurations(WifiConfiguration a, WifiConfiguration b) { 853f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle int order = 0; 854f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle boolean linked = false; 855f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 856453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle if ((a.linkedConfigurations != null) && (b.linkedConfigurations != null) 857453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle && (a.autoJoinStatus == WifiConfiguration.AUTO_JOIN_ENABLED) 858453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle && (b.autoJoinStatus == WifiConfiguration.AUTO_JOIN_ENABLED)) { 8592451dbcc4f9641df188326215b204b798eb70c46vandwalle if ((a.linkedConfigurations.get(b.configKey(true)) != null) 8602451dbcc4f9641df188326215b204b798eb70c46vandwalle && (b.linkedConfigurations.get(a.configKey(true)) != null)) { 861f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle linked = true; 862f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 863f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 864f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 865f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (a.ephemeral && b.ephemeral == false) { 866f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (VDBG) { 867b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" compareWifiConfigurations ephemeral and prefers " + b.configKey() 868453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle + " over " + a.configKey()); 869f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 870931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle return 1; // b is of higher priority - ascending 871f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 872f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (b.ephemeral && a.ephemeral == false) { 873f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (VDBG) { 874b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" compareWifiConfigurations ephemeral and prefers " + a.configKey() 875453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle + " over " + b.configKey()); 876f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 877931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle return -1; // a is of higher priority - descending 878f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 879f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 8802451dbcc4f9641df188326215b204b798eb70c46vandwalle // Apply RSSI, in the range [-5, +5] 8812451dbcc4f9641df188326215b204b798eb70c46vandwalle // after band adjustment, +n difference roughly corresponds to +10xn dBm 8822451dbcc4f9641df188326215b204b798eb70c46vandwalle order = order + compareWifiConfigurationsRSSI(a, b, mCurrentConfigurationKey); 883f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 8842451dbcc4f9641df188326215b204b798eb70c46vandwalle // If the configurations are not linked, compare by user's choice, only a 8852451dbcc4f9641df188326215b204b798eb70c46vandwalle // very high RSSI difference can then override the choice 8862451dbcc4f9641df188326215b204b798eb70c46vandwalle if (!linked) { 8872451dbcc4f9641df188326215b204b798eb70c46vandwalle int choice; 888f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 88921d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle choice = getConnectChoice(a, b, false); 8902451dbcc4f9641df188326215b204b798eb70c46vandwalle if (choice > 0) { 891931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // a is of higher priority - descending 8922451dbcc4f9641df188326215b204b798eb70c46vandwalle order = order - choice; 893f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (VDBG) { 894b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" compareWifiConfigurations prefers " + a.configKey() 895453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle + " over " + b.configKey() 896b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + " due to user choice of " + choice 897b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + " order -> " + Integer.toString(order)); 898f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 899f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle if (a.visibility != null) { 900f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle a.visibility.lastChoiceBoost = choice; 901f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle a.visibility.lastChoiceConfig = b.configKey(); 902f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle } 9032451dbcc4f9641df188326215b204b798eb70c46vandwalle } 9042451dbcc4f9641df188326215b204b798eb70c46vandwalle 90521d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle choice = getConnectChoice(b, a, false); 9062451dbcc4f9641df188326215b204b798eb70c46vandwalle if (choice > 0) { 907931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // a is of lower priority - ascending 9082451dbcc4f9641df188326215b204b798eb70c46vandwalle order = order + choice; 9094dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle if (VDBG) { 910b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" compareWifiConfigurations prefers " + b.configKey() + " over " 911b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + a.configKey() + " due to user choice of " + choice 912b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + " order ->" + Integer.toString(order)); 913f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 914f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle if (b.visibility != null) { 915f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle b.visibility.lastChoiceBoost = choice; 916f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle b.visibility.lastChoiceConfig = a.configKey(); 917f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle } 918f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 919f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 920ede1310be531a84faa08f02c3fd243448dd936ddvandwalle 921f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (order == 0) { 922931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // We don't know anything - pick the last seen i.e. K behavior 923931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // we should do this only for recently picked configurations 924f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (a.priority > b.priority) { 925931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // a is of higher priority - descending 9262451dbcc4f9641df188326215b204b798eb70c46vandwalle if (VDBG) { 927b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" compareWifiConfigurations prefers -1 " + a.configKey() + " over " 928453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle + b.configKey() + " due to priority"); 929f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 930f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 931f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle order = -1; 932f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } else if (a.priority < b.priority) { 933931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // a is of lower priority - ascending 9342451dbcc4f9641df188326215b204b798eb70c46vandwalle if (VDBG) { 935b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" compareWifiConfigurations prefers +1 " + b.configKey() + " over " 936453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle + a.configKey() + " due to priority"); 937f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 9382451dbcc4f9641df188326215b204b798eb70c46vandwalle order = 1; 939f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 940f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 941f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 942f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle String sorder = " == "; 943931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle if (order > 0) { 944f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle sorder = " < "; 945931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle } else if (order < 0) { 946f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle sorder = " > "; 947931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle } 948f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 9492451dbcc4f9641df188326215b204b798eb70c46vandwalle if (VDBG) { 950b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg("compareWifiConfigurations: " + a.configKey() + sorder 951453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle + b.configKey() + " order " + Integer.toString(order)); 952f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 953f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 954f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle return order; 955f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 956f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 957c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle boolean isBadCandidate(int rssi5, int rssi24) { 958c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle return (rssi5 < -80 && rssi24 < -90); 959c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle } 960c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle 961833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle /* 962c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle int compareWifiConfigurationsTop(WifiConfiguration a, WifiConfiguration b) { 963c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle int scorerOrder = compareWifiConfigurationsWithScorer(a, b); 964c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle int order = compareWifiConfigurations(a, b); 965c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle 966c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle if (scorerOrder * order < 0) { 967b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle if (VDBG) { 968b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" -> compareWifiConfigurationsTop: " + 969b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle "scorer override " + scorerOrder + " " + order); 970b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle } 971c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle // For debugging purpose, remember that an override happened 972c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle // during that autojoin Attempt 973c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle didOverride = true; 974c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle a.numScorerOverride++; 975c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle b.numScorerOverride++; 976c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle } 977c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle 978c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle if (scorerOrder != 0) { 979c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle // If the scorer came up with a result then use the scorer's result, else use 980c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle // the order provided by the base comparison function 981c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle order = scorerOrder; 982c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle } 983c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle return order; 984c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle } 985833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle */ 986c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle 9879f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle public int rssiBoostFrom5GHzRssi(int rssi, String dbg) { 9880eebae7334d6129f7ca1344e4b20199794994358vandwalle if (!mWifiConfigStore.enable5GHzPreference) { 9890eebae7334d6129f7ca1344e4b20199794994358vandwalle return 0; 9900eebae7334d6129f7ca1344e4b20199794994358vandwalle } 991e67ec726c07410073575473c0f50dc737629f5davandwalle if (rssi 99277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist > mWifiConfigStore.bandPreferenceBoostThreshold5.get()) { 993e67ec726c07410073575473c0f50dc737629f5davandwalle // Boost by 2 dB for each point 994e67ec726c07410073575473c0f50dc737629f5davandwalle // Start boosting at -65 995e67ec726c07410073575473c0f50dc737629f5davandwalle // Boost by 20 if above -55 996e67ec726c07410073575473c0f50dc737629f5davandwalle // Boost by 40 if abore -45 9970eebae7334d6129f7ca1344e4b20199794994358vandwalle int boost = mWifiConfigStore.bandPreferenceBoostFactor5 998dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * (rssi - mWifiConfigStore.bandPreferenceBoostThreshold5.get()); 999e67ec726c07410073575473c0f50dc737629f5davandwalle if (boost > 50) { 1000815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // 50 dB boost allows jumping from 2.4 to 5GHz 1001e67ec726c07410073575473c0f50dc737629f5davandwalle // consistently 1002e67ec726c07410073575473c0f50dc737629f5davandwalle boost = 50; 1003e67ec726c07410073575473c0f50dc737629f5davandwalle } 10049f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle if (VDBG && dbg != null) { 1005f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle logDbg(" " + dbg + ": rssi5 " + rssi + " 5GHz-boost " + boost); 10069f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle } 1007e67ec726c07410073575473c0f50dc737629f5davandwalle return boost; 1008e67ec726c07410073575473c0f50dc737629f5davandwalle } 1009e67ec726c07410073575473c0f50dc737629f5davandwalle 1010e67ec726c07410073575473c0f50dc737629f5davandwalle if (rssi 101177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist < mWifiConfigStore.bandPreferencePenaltyThreshold5.get()) { 10120eebae7334d6129f7ca1344e4b20199794994358vandwalle // penalize if < -75 10130eebae7334d6129f7ca1344e4b20199794994358vandwalle int boost = mWifiConfigStore.bandPreferencePenaltyFactor5 1014dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * (rssi - mWifiConfigStore.bandPreferencePenaltyThreshold5.get()); 10150eebae7334d6129f7ca1344e4b20199794994358vandwalle return boost; 1016e67ec726c07410073575473c0f50dc737629f5davandwalle } 1017e67ec726c07410073575473c0f50dc737629f5davandwalle return 0; 1018e67ec726c07410073575473c0f50dc737629f5davandwalle } 1019dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle 1020dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle /** 1021dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * attemptRoam() function implements the core of the same SSID switching algorithm 1022dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * <p/> 1023dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * Run thru all recent scan result of a WifiConfiguration and select the 1024dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * best one. 1025dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle */ 1026e67ec726c07410073575473c0f50dc737629f5davandwalle public ScanResult attemptRoam(ScanResult a, 1027e67ec726c07410073575473c0f50dc737629f5davandwalle WifiConfiguration current, int age, String currentBSSID) { 1028b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle if (current == null) { 1029dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 1030b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle logDbg("attemptRoam not associated"); 1031b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } 1032e67ec726c07410073575473c0f50dc737629f5davandwalle return a; 10334dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 103425ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande 10354d381bc39f5263effdae73ec99065eb299b806caVinit Deshpande ScanDetailCache scanDetailCache = 103625ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande mWifiConfigStore.getScanDetailCache(current); 103725ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande 103825ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande if (scanDetailCache == null) { 1039dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 1040b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle logDbg("attemptRoam no scan cache"); 1041b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } 1042e67ec726c07410073575473c0f50dc737629f5davandwalle return a; 10434dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 104425ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande if (scanDetailCache.size() > 6) { 1045dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 1046c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle logDbg("attemptRoam scan cache size " 104725ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande + scanDetailCache.size() + " --> bail"); 1048b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } 1049931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Implement same SSID roaming only for configurations 1050c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle // that have less than 4 BSSIDs 1051e67ec726c07410073575473c0f50dc737629f5davandwalle return a; 10524dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 1053b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle 10542f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle if (current.BSSID != null && !current.BSSID.equals("any")) { 1055dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (DBG) { 10562f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle logDbg("attemptRoam() BSSID is set " 10572f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle + current.BSSID + " -> bail"); 1058b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } 1059e67ec726c07410073575473c0f50dc737629f5davandwalle return a; 10604dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 10614dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 1062931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Determine which BSSID we want to associate to, taking account 1063c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle // relative strength of 5 and 2.4 GHz BSSIDs 10642451dbcc4f9641df188326215b204b798eb70c46vandwalle long nowMs = System.currentTimeMillis(); 10654dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 106625ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande for (ScanDetail sd : scanDetailCache.values()) { 106725ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande ScanResult b = sd.getScanResult(); 106897b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle int bRssiBoost5 = 0; 106997b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle int aRssiBoost5 = 0; 107097b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle int bRssiBoost = 0; 107197b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle int aRssiBoost = 0; 107225ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande if ((sd.getSeen() == 0) || (b.BSSID == null) 107325ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande || ((nowMs - sd.getSeen()) > age) 1074e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle || b.autoJoinStatus != ScanResult.ENABLED 1075e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle || b.numIpConfigFailures > 8) { 10764dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle continue; 10773a2a3d226881cce8a4e511302231d843b0def303vandwalle } 10784dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 1079931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Pick first one 10804dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle if (a == null) { 10814dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle a = b; 10824dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle continue; 10834dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 10844dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 1085e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle if (b.numIpConfigFailures < (a.numIpConfigFailures - 1)) { 1086e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // Prefer a BSSID that doesn't have less number of Ip config failures 1087e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle logDbg("attemptRoam: " 1088dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + b.BSSID + " rssi=" + b.level + " ipfail=" + b.numIpConfigFailures 1089e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + " freq=" + b.frequency 1090e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + " > " 1091dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + a.BSSID + " rssi=" + a.level + " ipfail=" + a.numIpConfigFailures 1092e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + " freq=" + a.frequency); 1093e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle a = b; 1094e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle continue; 1095e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle } 1096e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle 10972451dbcc4f9641df188326215b204b798eb70c46vandwalle // Apply hysteresis: we favor the currentBSSID by giving it a boost 10987806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle if (currentBSSID != null && currentBSSID.equals(b.BSSID)) { 1099931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Reduce the benefit of hysteresis if RSSI <= -75 110077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (b.level <= mWifiConfigStore.bandPreferencePenaltyThreshold5.get()) { 11010eebae7334d6129f7ca1344e4b20199794994358vandwalle bRssiBoost = mWifiConfigStore.associatedHysteresisLow; 1102c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle } else { 11030eebae7334d6129f7ca1344e4b20199794994358vandwalle bRssiBoost = mWifiConfigStore.associatedHysteresisHigh; 1104c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle } 11054dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 11067806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle if (currentBSSID != null && currentBSSID.equals(a.BSSID)) { 110777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (a.level <= mWifiConfigStore.bandPreferencePenaltyThreshold5.get()) { 1108931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Reduce the benefit of hysteresis if RSSI <= -75 11090eebae7334d6129f7ca1344e4b20199794994358vandwalle aRssiBoost = mWifiConfigStore.associatedHysteresisLow; 1110c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle } else { 11110eebae7334d6129f7ca1344e4b20199794994358vandwalle aRssiBoost = mWifiConfigStore.associatedHysteresisHigh; 1112c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle } 11134dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 11142451dbcc4f9641df188326215b204b798eb70c46vandwalle 111597b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle // Favor 5GHz: give a boost to 5GHz BSSIDs, with a slightly progressive curve 11162451dbcc4f9641df188326215b204b798eb70c46vandwalle // Boost the BSSID if it is on 5GHz, above a threshold 11172451dbcc4f9641df188326215b204b798eb70c46vandwalle // But penalize it if it is on 5GHz and below threshold 111897b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle // 111997b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle // With he current threshold values, 5GHz network with RSSI above -55 112097b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle // Are given a boost of 30DB which is enough to overcome the current BSSID 112197b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle // hysteresis (+14) plus 2.4/5 GHz signal strength difference on most cases 11229f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle // 11239f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle // The "current BSSID" Boost must be added to the BSSID's level so as to introduce\ 11249f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle // soem amount of hysteresis 1125e67ec726c07410073575473c0f50dc737629f5davandwalle if (b.is5GHz()) { 11269f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle bRssiBoost5 = rssiBoostFrom5GHzRssi(b.level + bRssiBoost, b.BSSID); 11274dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 1128e67ec726c07410073575473c0f50dc737629f5davandwalle if (a.is5GHz()) { 11299f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle aRssiBoost5 = rssiBoostFrom5GHzRssi(a.level + aRssiBoost, a.BSSID); 11304dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 11314dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 1132dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 1133c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle String comp = " < "; 1134dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (b.level + bRssiBoost + bRssiBoost5 > a.level + aRssiBoost + aRssiBoost5) { 1135c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle comp = " > "; 1136c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle } 11374dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle logDbg("attemptRoam: " 1138c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle + b.BSSID + " rssi=" + b.level + " boost=" + Integer.toString(bRssiBoost) 113997b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle + "/" + Integer.toString(bRssiBoost5) + " freq=" + b.frequency 114097b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle + comp 1141c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle + a.BSSID + " rssi=" + a.level + " boost=" + Integer.toString(aRssiBoost) 1142c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle + "/" + Integer.toString(aRssiBoost5) + " freq=" + a.frequency); 1143c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle } 1144c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle 11452451dbcc4f9641df188326215b204b798eb70c46vandwalle // Compare the RSSIs after applying the hysteresis boost and the 5GHz 11462451dbcc4f9641df188326215b204b798eb70c46vandwalle // boost if applicable 1147dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (b.level + bRssiBoost + bRssiBoost5 > a.level + aRssiBoost + aRssiBoost5) { 1148931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // b is the better BSSID 1149c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle a = b; 11504dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 11514dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 11523a2a3d226881cce8a4e511302231d843b0def303vandwalle if (a != null) { 1153dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 11547806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle StringBuilder sb = new StringBuilder(); 1155e67ec726c07410073575473c0f50dc737629f5davandwalle sb.append("attemptRoam: " + current.configKey() + 1156e67ec726c07410073575473c0f50dc737629f5davandwalle " Found " + a.BSSID + " rssi=" + a.level + " freq=" + a.frequency); 11577806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle if (currentBSSID != null) { 11587806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle sb.append(" Current: " + currentBSSID); 11597806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle } 11607806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle sb.append("\n"); 11617806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle logDbg(sb.toString()); 11623a2a3d226881cce8a4e511302231d843b0def303vandwalle } 11634dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 11643a2a3d226881cce8a4e511302231d843b0def303vandwalle return a; 11654dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 11664dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 1167931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle /** 11682451dbcc4f9641df188326215b204b798eb70c46vandwalle * getNetworkScore() 1169dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * <p/> 11702451dbcc4f9641df188326215b204b798eb70c46vandwalle * if scorer is present, get the network score of a WifiConfiguration 1171dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * <p/> 11722451dbcc4f9641df188326215b204b798eb70c46vandwalle * Note: this should be merge with setVisibility 11732451dbcc4f9641df188326215b204b798eb70c46vandwalle * 11742451dbcc4f9641df188326215b204b798eb70c46vandwalle * @param config 11752451dbcc4f9641df188326215b204b798eb70c46vandwalle * @return score 11762451dbcc4f9641df188326215b204b798eb70c46vandwalle */ 117781c9ea6c343bc7f8d87095237e59844a974d0b70Jeff Davidson int getConfigNetworkScore(WifiConfiguration config, int age, boolean isActive) { 11782451dbcc4f9641df188326215b204b798eb70c46vandwalle 11792451dbcc4f9641df188326215b204b798eb70c46vandwalle if (mNetworkScoreCache == null) { 1180e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle if (VDBG) { 1181b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" getConfigNetworkScore for " + config.configKey() 1182e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle + " -> no scorer, hence no scores"); 1183e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle } 11841db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle return WifiNetworkScoreCache.INVALID_NETWORK_SCORE; 11851db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle } 118625ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande 118725ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande if (mWifiConfigStore.getScanDetailCache(config) == null) { 1188e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle if (VDBG) { 1189b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" getConfigNetworkScore for " + config.configKey() 1190e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle + " -> no scan cache"); 1191e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle } 11921db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle return WifiNetworkScoreCache.INVALID_NETWORK_SCORE; 11932451dbcc4f9641df188326215b204b798eb70c46vandwalle } 11942451dbcc4f9641df188326215b204b798eb70c46vandwalle 11952451dbcc4f9641df188326215b204b798eb70c46vandwalle // Get current date 11962451dbcc4f9641df188326215b204b798eb70c46vandwalle long nowMs = System.currentTimeMillis(); 11972451dbcc4f9641df188326215b204b798eb70c46vandwalle 11981db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle int startScore = -10000; 11991db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle 12002451dbcc4f9641df188326215b204b798eb70c46vandwalle // Run thru all cached scan results 120125ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande for (ScanDetail sd : mWifiConfigStore.getScanDetailCache(config).values()) { 120225ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande ScanResult result = sd.getScanResult(); 120325ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande if ((nowMs - sd.getSeen()) < age) { 120481c9ea6c343bc7f8d87095237e59844a974d0b70Jeff Davidson int sc = mNetworkScoreCache.getNetworkScore(result, isActive); 12051db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle if (sc > startScore) { 12061db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle startScore = sc; 12072451dbcc4f9641df188326215b204b798eb70c46vandwalle } 12082451dbcc4f9641df188326215b204b798eb70c46vandwalle } 12092451dbcc4f9641df188326215b204b798eb70c46vandwalle } 12101db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle if (startScore == -10000) { 12111db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle startScore = WifiNetworkScoreCache.INVALID_NETWORK_SCORE; 12121db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle } 1213e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle if (VDBG) { 1214e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle if (startScore == WifiNetworkScoreCache.INVALID_NETWORK_SCORE) { 1215b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" getConfigNetworkScore for " + config.configKey() 1216e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle + " -> no available score"); 1217e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle } else { 1218b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" getConfigNetworkScore for " + config.configKey() 121981c9ea6c343bc7f8d87095237e59844a974d0b70Jeff Davidson + " isActive=" + isActive 1220e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle + " score = " + Integer.toString(startScore)); 1221e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle } 1222e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle } 1223e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle 12241db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle return startScore; 12252451dbcc4f9641df188326215b204b798eb70c46vandwalle } 12262451dbcc4f9641df188326215b204b798eb70c46vandwalle 12272451dbcc4f9641df188326215b204b798eb70c46vandwalle /** 12288639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson * Set whether connections to untrusted connections are allowed. 12298639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson */ 12308639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson void setAllowUntrustedConnections(boolean allow) { 12318639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson boolean changed = mAllowUntrustedConnections != allow; 12328639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson mAllowUntrustedConnections = allow; 12338639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson if (changed) { 1234005c1ef113192f898499a407dd266393a8d6b076vandwalle // Trigger a scan so as to reattempt autojoin 1235005c1ef113192f898499a407dd266393a8d6b076vandwalle mWifiStateMachine.startScanForUntrustedSettingChange(); 12368639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson } 12378639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson } 12388639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson 12398639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson private boolean isOpenNetwork(ScanResult result) { 12408639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson return !result.capabilities.contains("WEP") && 12418639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson !result.capabilities.contains("PSK") && 12428639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson !result.capabilities.contains("EAP"); 12438639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson } 12448639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson 124516fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson private boolean haveRecentlySeenScoredBssid(WifiConfiguration config) { 124616fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson long ephemeralOutOfRangeTimeoutMs = Settings.Global.getLong( 124716fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson mContext.getContentResolver(), 124816fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson Settings.Global.WIFI_EPHEMERAL_OUT_OF_RANGE_TIMEOUT_MS, 124916fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson DEFAULT_EPHEMERAL_OUT_OF_RANGE_TIMEOUT_MS); 125016fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson 125116fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson // Check whether the currently selected network has a score curve. If 125216fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson // ephemeralOutOfRangeTimeoutMs is <= 0, then this is all we check, and we stop here. 125316fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson // Otherwise, we stop here if the currently selected network has a score. If it doesn't, we 125416fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson // keep going - it could be that another BSSID is in range (has been seen recently) which 125516fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson // has a score, even if the one we're immediately connected to doesn't. 1256dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle ScanResult currentScanResult = mWifiStateMachine.getCurrentScanResult(); 125716fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson boolean currentNetworkHasScoreCurve = mNetworkScoreCache.hasScoreCurve(currentScanResult); 125816fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson if (ephemeralOutOfRangeTimeoutMs <= 0 || currentNetworkHasScoreCurve) { 125916fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson if (DBG) { 126016fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson if (currentNetworkHasScoreCurve) { 126116fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson logDbg("Current network has a score curve, keeping network: " 126216fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson + currentScanResult); 126316fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } else { 126416fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson logDbg("Current network has no score curve, giving up: " + config.SSID); 126516fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } 126616fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } 126716fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson return currentNetworkHasScoreCurve; 126816fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } 126916fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson 127025ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande if (mWifiConfigStore.getScanDetailCache(config) == null 127125ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande || mWifiConfigStore.getScanDetailCache(config).isEmpty()) { 127216fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson return false; 127316fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } 127416fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson 127516fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson long currentTimeMs = System.currentTimeMillis(); 127625ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande for (ScanDetail sd : mWifiConfigStore.getScanDetailCache(config).values()) { 127725ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande ScanResult result = sd.getScanResult(); 127825ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande if (currentTimeMs > sd.getSeen() 127925ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande && currentTimeMs - sd.getSeen() < ephemeralOutOfRangeTimeoutMs 128016fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson && mNetworkScoreCache.hasScoreCurve(result)) { 128116fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson if (DBG) { 128216fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson logDbg("Found scored BSSID, keeping network: " + result.BSSID); 128316fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } 128416fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson return true; 128516fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } 128616fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } 128716fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson 128816fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson if (DBG) { 128916fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson logDbg("No recently scored BSSID found, giving up connection: " + config.SSID); 129016fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } 129116fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson return false; 129216fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } 129316fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson 129477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // After WifiStateMachine ask the supplicant to associate or reconnect 129577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // we might still obtain scan results from supplicant 129677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // however the supplicant state in the mWifiInfo and supplicant state tracker 129777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // are updated when we get the supplicant state change message which can be 129877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // processed after the SCAN_RESULT message, so at this point the framework doesn't 129977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // know that supplicant is ASSOCIATING. 130077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // A good fix for this race condition would be for the WifiStateMachine to add 130177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // a new transient state where it expects to get the supplicant message indicating 130277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // that it started the association process and within which critical operations 130377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // like autojoin should be deleted. 130477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 130577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // This transient state would remove the need for the roam Wathchdog which 130677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // basically does that. 130777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 130877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // At the moment, we just query the supplicant state synchronously with the 130977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // mWifiNative.status() command, which allow us to know that 131077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // supplicant has started association process, even though we didnt yet get the 131177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // SUPPLICANT_STATE_CHANGE message. 131277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 131377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist private static final List<String> ASSOC_STATES = Arrays.asList( 131477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist "ASSOCIATING", 131577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist "ASSOCIATED", 131677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist "FOUR_WAY_HANDSHAKE", 131777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist "GROUP_KEY_HANDSHAKE"); 131877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 131977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist private int getNetID(String wpaStatus) { 132077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (VDBG) { 132177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist logDbg("attemptAutoJoin() status=" + wpaStatus); 132277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 132377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 132477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist try { 132577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist int id = WifiConfiguration.INVALID_NETWORK_ID; 132677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist String state = null; 132777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist BufferedReader br = new BufferedReader(new StringReader(wpaStatus)); 132877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist String line; 1329dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle while ((line = br.readLine()) != null) { 133077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist int split = line.indexOf('='); 133177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (split < 0) { 133277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist continue; 133377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 133477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 133577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist String name = line.substring(0, split); 133677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (name.equals("id")) { 133777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist try { 1338dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle id = Integer.parseInt(line.substring(split + 1)); 133977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (state != null) { 134077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist break; 134177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 1342dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } catch (NumberFormatException nfe) { 134377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return WifiConfiguration.INVALID_NETWORK_ID; 134477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 1345dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } else if (name.equals("wpa_state")) { 1346dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle state = line.substring(split + 1); 134777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (ASSOC_STATES.contains(state)) { 134877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return WifiConfiguration.INVALID_NETWORK_ID; 1349dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } else if (id >= 0) { 135077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist break; 135177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 135277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 135377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 135477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return id; 1355dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } catch (IOException ioe) { 135677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return WifiConfiguration.INVALID_NETWORK_ID; // Won't happen 135777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 135877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 135977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 136077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist private boolean setCurrentConfigurationKey(WifiConfiguration currentConfig, 136177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist int supplicantNetId) { 136277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (currentConfig != null) { 136377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (supplicantNetId != currentConfig.networkId 136477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // https://b.corp.google.com/issue?id=16484607 136577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // mark this condition as an error only if the mismatched networkId are valid 136677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist && supplicantNetId != WifiConfiguration.INVALID_NETWORK_ID 136777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist && currentConfig.networkId != WifiConfiguration.INVALID_NETWORK_ID) { 136877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist logDbg("attemptAutoJoin() ERROR wpa_supplicant out of sync nid=" 136977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist + Integer.toString(supplicantNetId) + " WifiStateMachine=" 137077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist + Integer.toString(currentConfig.networkId)); 137177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist mWifiStateMachine.disconnectCommand(); 137277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return false; 137377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } else if (currentConfig.ephemeral && (!mAllowUntrustedConnections || 137477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist !haveRecentlySeenScoredBssid(currentConfig))) { 137577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // The current connection is untrusted (the framework added it), but we're either 137677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // no longer allowed to connect to such networks, the score has been nullified 137777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // since we connected, or the scored BSSID has gone out of range. 137877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // Drop the current connection and perform the rest of autojoin. 137977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist logDbg("attemptAutoJoin() disconnecting from unwanted ephemeral network"); 138077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist mWifiStateMachine.disconnectCommand(Process.WIFI_UID, 138177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist mAllowUntrustedConnections ? 1 : 0); 138277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return false; 138377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } else { 138477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist mCurrentConfigurationKey = currentConfig.configKey(); 138577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return true; 138677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 138777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } else { 138877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // If not invalid, then maybe in the process of associating, skip this attempt 138977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return supplicantNetId == WifiConfiguration.INVALID_NETWORK_ID; 139077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 139177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 139277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 139377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist private void updateBlackListStatus(WifiConfiguration config, long now) { 139477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // Wait for 5 minutes before reenabling config that have known, 139577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // repeated connection or DHCP failures 139677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (config.disableReason == WifiConfiguration.DISABLED_DHCP_FAILURE 139777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist || config.disableReason 139877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist == WifiConfiguration.DISABLED_ASSOCIATION_REJECT 139977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist || config.disableReason 140077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist == WifiConfiguration.DISABLED_AUTH_FAILURE) { 140177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (config.blackListTimestamp == 0 140277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist || (config.blackListTimestamp > now)) { 140377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // Sanitize the timestamp 140477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist config.blackListTimestamp = now; 140577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 140677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if ((now - config.blackListTimestamp) > 140777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist mWifiConfigStore.wifiConfigBlacklistMinTimeMilli) { 140877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // Re-enable the WifiConfiguration 140977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist config.status = WifiConfiguration.Status.ENABLED; 141077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 141177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // Reset the blacklist condition 141277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist config.numConnectionFailures = 0; 141377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist config.numIpConfigFailures = 0; 141477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist config.numAuthFailures = 0; 141577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist config.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_ENABLED); 141677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 141777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist config.dirty = true; 141877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } else { 141977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (VDBG) { 142077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist long delay = mWifiConfigStore.wifiConfigBlacklistMinTimeMilli 142177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist - (now - config.blackListTimestamp); 142277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist logDbg("attemptautoJoin " + config.configKey() 142377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist + " dont unblacklist yet, waiting for " 142477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist + delay + " ms"); 142577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 142677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 142777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 142877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // Avoid networks disabled because of AUTH failure altogether 142977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (DBG) { 143077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist logDbg("attemptAutoJoin skip candidate due to auto join status " 143177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist + Integer.toString(config.autoJoinStatus) + " key " 143277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist + config.configKey(true) 143377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist + " reason " + config.disableReason); 143477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 143577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 1436dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle 143777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist boolean underSoftThreshold(WifiConfiguration config) { 143877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return config.visibility.rssi24 < mWifiConfigStore.thresholdUnblacklistThreshold24Soft.get() 1439dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle && config.visibility.rssi5 < mWifiConfigStore.thresholdUnblacklistThreshold5Soft.get(); 144077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 144177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 144277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist boolean underHardThreshold(WifiConfiguration config) { 144377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return config.visibility.rssi24 < mWifiConfigStore.thresholdUnblacklistThreshold24Hard.get() 1444dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle && config.visibility.rssi5 < mWifiConfigStore.thresholdUnblacklistThreshold5Hard.get(); 144577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 144677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 144777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist boolean underThreshold(WifiConfiguration config, int rssi24, int rssi5) { 144877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return config.visibility.rssi24 < rssi24 && config.visibility.rssi5 < rssi5; 144977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 145077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 14518639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson /** 1452931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * attemptAutoJoin() function implements the core of the a network switching algorithm 145368fee36dac1dda5c596c00ef33fdbc0962e9ec9fvandwalle * Return false if no acceptable networks were found. 1454931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle */ 145568fee36dac1dda5c596c00ef33fdbc0962e9ec9fvandwalle boolean attemptAutoJoin() { 145668fee36dac1dda5c596c00ef33fdbc0962e9ec9fvandwalle boolean found = false; 1457c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle didOverride = false; 14581ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle didBailDueToWeakRssi = false; 1459b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle int networkSwitchType = AUTO_JOIN_IDLE; 14604dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 14618242cc81341c80ab5bc057ffdad99a3a1d95be5cvandwalle long now = System.currentTimeMillis(); 14628242cc81341c80ab5bc057ffdad99a3a1d95be5cvandwalle 14638c9088d11880553458f09377cc60d6eb7e66747bvandwalle String lastSelectedConfiguration = mWifiConfigStore.getLastSelectedConfiguration(); 14648c9088d11880553458f09377cc60d6eb7e66747bvandwalle 1465931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Reset the currentConfiguration Key, and set it only if WifiStateMachine and 1466453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle // supplicant agree 1467453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle mCurrentConfigurationKey = null; 1468453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle WifiConfiguration currentConfiguration = mWifiStateMachine.getCurrentWifiConfiguration(); 1469453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle 1470f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle WifiConfiguration candidate = null; 1471f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 1472931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Obtain the subset of recently seen networks 1473833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle List<WifiConfiguration> list = 1474833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle mWifiConfigStore.getRecentConfiguredNetworks(mScanResultAutoJoinAge, false); 1475f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (list == null) { 1476dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) logDbg("attemptAutoJoin nothing known=" + 147731891afce40b903ada9b24ec12e3648ae6aa27b2Jan Nordqvist mWifiConfigStore.getConfiguredNetworksSize()); 147868fee36dac1dda5c596c00ef33fdbc0962e9ec9fvandwalle return false; 1479f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1480f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 1481931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Find the currently connected network: ask the supplicant directly 148277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist int supplicantNetId = getNetID(mWifiNative.status(true)); 148349bc8dd35845318cd9bc5ce9064fc1ad33bbece8xinhe 1484ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle if (DBG) { 14857806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle String conf = ""; 1486b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle String last = ""; 14877806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle if (currentConfiguration != null) { 1488e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle conf = " current=" + currentConfiguration.configKey(); 1489b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle } 1490b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle if (lastSelectedConfiguration != null) { 14912f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle last = " last=" + lastSelectedConfiguration; 14927806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle } 1493ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle logDbg("attemptAutoJoin() num recent config " + Integer.toString(list.size()) 1494b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + conf + last 1495b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + " ---> suppNetId=" + Integer.toString(supplicantNetId)); 1496ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle } 1497f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 149877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (!setCurrentConfigurationKey(currentConfiguration, supplicantNetId)) { 149977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return false; 1500453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle } 1501453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle 1502b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle int currentNetId = -1; 1503b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle if (currentConfiguration != null) { 1504931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // If we are associated to a configuration, it will 1505b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle // be compared thru the compareNetwork function 1506b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle currentNetId = currentConfiguration.networkId; 1507b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle } 1508b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle 1509931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle /** 1510931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * Run thru all visible configurations without looking at the one we 1511c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle * are currently associated to 15124dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle * select Best Network candidate from known WifiConfigurations 1513931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle */ 1514f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle for (WifiConfiguration config : list) { 1515e86c962bb99a8b126ed64ddcc6b112161549e26dvandwalle if (config.SSID == null) { 1516b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle continue; 1517e86c962bb99a8b126ed64ddcc6b112161549e26dvandwalle } 1518e86c962bb99a8b126ed64ddcc6b112161549e26dvandwalle 151977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (config.autoJoinStatus >= WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE) { 152077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist updateBlackListStatus(config, now); 1521f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle continue; 1522f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1523f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 1524e487a4648dd41881e754f1224aaedead78a0777dSky Faber if (config.userApproved == WifiConfiguration.USER_PENDING || 1525e487a4648dd41881e754f1224aaedead78a0777dSky Faber config.userApproved == WifiConfiguration.USER_BANNED) { 1526e487a4648dd41881e754f1224aaedead78a0777dSky Faber if (DBG) { 1527e487a4648dd41881e754f1224aaedead78a0777dSky Faber logDbg("attemptAutoJoin skip candidate due to user approval status " 1528e487a4648dd41881e754f1224aaedead78a0777dSky Faber + WifiConfiguration.userApprovedAsString(config.userApproved) + " key " 1529e487a4648dd41881e754f1224aaedead78a0777dSky Faber + config.configKey(true)); 1530e487a4648dd41881e754f1224aaedead78a0777dSky Faber } 1531e487a4648dd41881e754f1224aaedead78a0777dSky Faber continue; 1532e487a4648dd41881e754f1224aaedead78a0777dSky Faber } 1533e487a4648dd41881e754f1224aaedead78a0777dSky Faber 1534931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Try to un-blacklist based on elapsed time 153527355a942653264388e909a4276196ee63e57811vandwalle if (config.blackListTimestamp > 0) { 153627355a942653264388e909a4276196ee63e57811vandwalle if (now < config.blackListTimestamp) { 1537931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle /** 1538931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * looks like there was a change in the system clock since we black listed, and 1539931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * timestamp is not meaningful anymore, hence lose it. 1540931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * this event should be rare enough so that we still want to lose the black list 15412451dbcc4f9641df188326215b204b798eb70c46vandwalle */ 154227355a942653264388e909a4276196ee63e57811vandwalle config.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_ENABLED); 154327355a942653264388e909a4276196ee63e57811vandwalle } else { 15444dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle if ((now - config.blackListTimestamp) > loseBlackListHardMilli) { 1545931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Reenable it after 18 hours, i.e. next day 154627355a942653264388e909a4276196ee63e57811vandwalle config.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_ENABLED); 15474dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } else if ((now - config.blackListTimestamp) > loseBlackListSoftMilli) { 1548931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Lose blacklisting due to bad link 154927355a942653264388e909a4276196ee63e57811vandwalle config.setAutoJoinStatus(config.autoJoinStatus - 8); 155027355a942653264388e909a4276196ee63e57811vandwalle } 155127355a942653264388e909a4276196ee63e57811vandwalle } 155227355a942653264388e909a4276196ee63e57811vandwalle } 155327355a942653264388e909a4276196ee63e57811vandwalle 155477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (config.visibility == null) { 155577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist continue; 155677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 155777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 1558931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Try to unblacklist based on good visibility 155977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (underSoftThreshold(config)) { 156021d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle if (DBG) { 156121d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle logDbg("attemptAutoJoin do not unblacklist due to low visibility " + 156221d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle config.configKey() + " status=" + config.autoJoinStatus); 156321d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle } 156477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } else if (underHardThreshold(config)) { 1565931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // If the network is simply temporary disabled, don't allow reconnect until 1566931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // RSSI becomes good enough 156727355a942653264388e909a4276196ee63e57811vandwalle config.setAutoJoinStatus(config.autoJoinStatus - 1); 156821d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle if (DBG) { 156921d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle logDbg("attemptAutoJoin good candidate seen, bumped soft -> status=" + 157021d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle config.configKey() + " status=" + config.autoJoinStatus); 157121d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle } 157227355a942653264388e909a4276196ee63e57811vandwalle } else { 1573c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle config.setAutoJoinStatus(config.autoJoinStatus - 3); 157421d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle if (DBG) { 157521d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle logDbg("attemptAutoJoin good candidate seen, bumped hard -> status=" + 157621d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle config.configKey() + " status=" + config.autoJoinStatus); 157721d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle } 157827355a942653264388e909a4276196ee63e57811vandwalle } 157927355a942653264388e909a4276196ee63e57811vandwalle 158027355a942653264388e909a4276196ee63e57811vandwalle if (config.autoJoinStatus >= 158127355a942653264388e909a4276196ee63e57811vandwalle WifiConfiguration.AUTO_JOIN_TEMPORARY_DISABLED) { 1582931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Network is blacklisted, skip 158321d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle if (DBG) { 158421d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle logDbg("attemptAutoJoin skip blacklisted -> status=" + 158521d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle config.configKey() + " status=" + config.autoJoinStatus); 158621d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle } 158727355a942653264388e909a4276196ee63e57811vandwalle continue; 158827355a942653264388e909a4276196ee63e57811vandwalle } 1589f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (config.networkId == currentNetId) { 1590ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle if (DBG) { 159121bc54cb37a0085b1c909cb4d55ebb12a2facefbvandwalle logDbg("attemptAutoJoin skip current candidate " 159221bc54cb37a0085b1c909cb4d55ebb12a2facefbvandwalle + Integer.toString(currentNetId) 1593ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle + " key " + config.configKey(true)); 1594ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle } 1595f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle continue; 1596f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1597f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 15980eebae7334d6129f7ca1344e4b20199794994358vandwalle boolean isLastSelected = false; 15990eebae7334d6129f7ca1344e4b20199794994358vandwalle if (lastSelectedConfiguration != null && 16000eebae7334d6129f7ca1344e4b20199794994358vandwalle config.configKey().equals(lastSelectedConfiguration)) { 16010eebae7334d6129f7ca1344e4b20199794994358vandwalle isLastSelected = true; 16020eebae7334d6129f7ca1344e4b20199794994358vandwalle } 16030eebae7334d6129f7ca1344e4b20199794994358vandwalle 16044fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle if (config.lastRoamingFailure != 0 16054fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle && currentConfiguration != null 16064fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle && (lastSelectedConfiguration == null 16074fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle || !config.configKey().equals(lastSelectedConfiguration))) { 16084fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle // Apply blacklisting for roaming to this config if: 16094fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle // - the target config had a recent roaming failure 16104fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle // - we are currently associated 16114fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle // - the target config is not the last selected 16124fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle if (now > config.lastRoamingFailure 16134fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle && (now - config.lastRoamingFailure) 16144fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle < config.roamingFailureBlackListTimeMilli) { 16154fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle if (DBG) { 16164fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle logDbg("compareNetwork not switching to " + config.configKey() 16174fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle + " from current " + currentConfiguration.configKey() 16184fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle + " because it is blacklisted due to roam failure, " 16194fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle + " blacklist remain time = " 16204fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle + (now - config.lastRoamingFailure) + " ms"); 16214fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle } 16224fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle continue; 16234fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle } 16244fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle } 16254fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle 16261ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle int boost = config.autoJoinUseAggressiveJoinAttemptThreshold + weakRssiBailCount; 162777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (underThreshold(config, 162877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist mWifiConfigStore.thresholdInitialAutoJoinAttemptMin24RSSI.get() - boost, 162977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist mWifiConfigStore.thresholdInitialAutoJoinAttemptMin5RSSI.get() - boost)) { 163077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 163121d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle if (DBG) { 163221d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle logDbg("attemptAutoJoin skip due to low visibility " + config.configKey()); 163321d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle } 16340eebae7334d6129f7ca1344e4b20199794994358vandwalle 1635c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle // Don't try to autojoin a network that is too far but 1636c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle // If that configuration is a user's choice however, try anyway 16370eebae7334d6129f7ca1344e4b20199794994358vandwalle if (!isLastSelected) { 16380eebae7334d6129f7ca1344e4b20199794994358vandwalle config.autoJoinBailedDueToLowRssi = true; 16391ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle didBailDueToWeakRssi = true; 16408c9088d11880553458f09377cc60d6eb7e66747bvandwalle continue; 16410eebae7334d6129f7ca1344e4b20199794994358vandwalle } else { 16420eebae7334d6129f7ca1344e4b20199794994358vandwalle // Next time, try to be a bit more aggressive in auto-joining 16430eebae7334d6129f7ca1344e4b20199794994358vandwalle if (config.autoJoinUseAggressiveJoinAttemptThreshold 1644dd0c558776fcfba3f754bb0cd6533f2c9c23ec1evandwalle < WifiConfiguration.MAX_INITIAL_AUTO_JOIN_RSSI_BOOST 1645dd0c558776fcfba3f754bb0cd6533f2c9c23ec1evandwalle && config.autoJoinBailedDueToLowRssi) { 1646dd0c558776fcfba3f754bb0cd6533f2c9c23ec1evandwalle config.autoJoinUseAggressiveJoinAttemptThreshold += 4; 16474dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 16488c9088d11880553458f09377cc60d6eb7e66747bvandwalle } 16490eebae7334d6129f7ca1344e4b20199794994358vandwalle } 1650d30127db46224e45554f8964209221bba8ad41d9vandwalle if (config.numNoInternetAccessReports > 0 1651d30127db46224e45554f8964209221bba8ad41d9vandwalle && !isLastSelected 1652d30127db46224e45554f8964209221bba8ad41d9vandwalle && !config.validatedInternetAccess) { 1653d30127db46224e45554f8964209221bba8ad41d9vandwalle // Avoid autoJoining this network because last time we used it, it didn't 1654d30127db46224e45554f8964209221bba8ad41d9vandwalle // have internet access, and we never manage to validate internet access on this 1655d30127db46224e45554f8964209221bba8ad41d9vandwalle // network configuration 16560eebae7334d6129f7ca1344e4b20199794994358vandwalle if (DBG) { 1657d30127db46224e45554f8964209221bba8ad41d9vandwalle logDbg("attemptAutoJoin skip candidate due to no InternetAccess " 1658d30127db46224e45554f8964209221bba8ad41d9vandwalle + config.configKey(true) 1659d30127db46224e45554f8964209221bba8ad41d9vandwalle + " num reports " + config.numNoInternetAccessReports); 16609f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle } 16610eebae7334d6129f7ca1344e4b20199794994358vandwalle continue; 16628c9088d11880553458f09377cc60d6eb7e66747bvandwalle } 16638c9088d11880553458f09377cc60d6eb7e66747bvandwalle 1664ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle if (DBG) { 1665e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle String cur = ""; 1666e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle if (candidate != null) { 1667e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle cur = " current candidate " + candidate.configKey(); 1668e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle } 1669e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle logDbg("attemptAutoJoin trying id=" 1670c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle + Integer.toString(config.networkId) + " " 1671b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + config.configKey(true) 1672e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + " status=" + config.autoJoinStatus 1673e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + cur); 1674ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle } 1675f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 1676f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (candidate == null) { 1677f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle candidate = config; 1678f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } else { 1679dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 1680453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle logDbg("attemptAutoJoin will compare candidate " + candidate.configKey() 16814dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle + " with " + config.configKey()); 1682f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 16834d381bc39f5263effdae73ec99065eb299b806caVinit Deshpande 1684833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle int order = compareWifiConfigurations(candidate, config); 16854d381bc39f5263effdae73ec99065eb299b806caVinit Deshpande if (VDBG) { 16864d381bc39f5263effdae73ec99065eb299b806caVinit Deshpande logDbg("attemptAutoJoin compareWifiConfigurations returned " + order); 16874d381bc39f5263effdae73ec99065eb299b806caVinit Deshpande } 16882451dbcc4f9641df188326215b204b798eb70c46vandwalle 16892451dbcc4f9641df188326215b204b798eb70c46vandwalle // The lastSelectedConfiguration is the configuration the user has manually selected 1690c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle // thru WifiPicker, or that a 3rd party app asked us to connect to via the 16912451dbcc4f9641df188326215b204b798eb70c46vandwalle // enableNetwork with disableOthers=true WifiManager API 16922451dbcc4f9641df188326215b204b798eb70c46vandwalle // As this is a direct user choice, we strongly prefer this configuration, 16932451dbcc4f9641df188326215b204b798eb70c46vandwalle // hence give +/-100 16942451dbcc4f9641df188326215b204b798eb70c46vandwalle if ((lastSelectedConfiguration != null) 16952451dbcc4f9641df188326215b204b798eb70c46vandwalle && candidate.configKey().equals(lastSelectedConfiguration)) { 16962451dbcc4f9641df188326215b204b798eb70c46vandwalle // candidate is the last selected configuration, 16972451dbcc4f9641df188326215b204b798eb70c46vandwalle // so keep it above connect choices (+/-60) and 16982451dbcc4f9641df188326215b204b798eb70c46vandwalle // above RSSI/scorer based selection of linked configuration (+/- 50) 16992451dbcc4f9641df188326215b204b798eb70c46vandwalle // by reducing order by -100 17002451dbcc4f9641df188326215b204b798eb70c46vandwalle order = order - 100; 1701dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 17022f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle logDbg(" ...and prefers -100 " + candidate.configKey() 17032451dbcc4f9641df188326215b204b798eb70c46vandwalle + " over " + config.configKey() 17042451dbcc4f9641df188326215b204b798eb70c46vandwalle + " because it is the last selected -> " 17052451dbcc4f9641df188326215b204b798eb70c46vandwalle + Integer.toString(order)); 17062451dbcc4f9641df188326215b204b798eb70c46vandwalle } 17072451dbcc4f9641df188326215b204b798eb70c46vandwalle } else if ((lastSelectedConfiguration != null) 17082451dbcc4f9641df188326215b204b798eb70c46vandwalle && config.configKey().equals(lastSelectedConfiguration)) { 17092451dbcc4f9641df188326215b204b798eb70c46vandwalle // config is the last selected configuration, 17102451dbcc4f9641df188326215b204b798eb70c46vandwalle // so keep it above connect choices (+/-60) and 17112451dbcc4f9641df188326215b204b798eb70c46vandwalle // above RSSI/scorer based selection of linked configuration (+/- 50) 17122451dbcc4f9641df188326215b204b798eb70c46vandwalle // by increasing order by +100 17132451dbcc4f9641df188326215b204b798eb70c46vandwalle order = order + 100; 1714dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 17152f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle logDbg(" ...and prefers +100 " + config.configKey() 17162451dbcc4f9641df188326215b204b798eb70c46vandwalle + " over " + candidate.configKey() 17172451dbcc4f9641df188326215b204b798eb70c46vandwalle + " because it is the last selected -> " 17182451dbcc4f9641df188326215b204b798eb70c46vandwalle + Integer.toString(order)); 17192451dbcc4f9641df188326215b204b798eb70c46vandwalle } 17202451dbcc4f9641df188326215b204b798eb70c46vandwalle } 17212451dbcc4f9641df188326215b204b798eb70c46vandwalle 1722f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (order > 0) { 1723931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Ascending : candidate < config 1724f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle candidate = config; 1725f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1726f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1727f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1728f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 17292451dbcc4f9641df188326215b204b798eb70c46vandwalle // Now, go thru scan result to try finding a better untrusted network 1730833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle if (mNetworkScoreCache != null && mAllowUntrustedConnections) { 1731f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle int rssi5 = WifiConfiguration.INVALID_RSSI; 1732f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle int rssi24 = WifiConfiguration.INVALID_RSSI; 1733f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (candidate != null) { 1734f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle rssi5 = candidate.visibility.rssi5; 1735f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle rssi24 = candidate.visibility.rssi24; 1736f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1737f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 1738931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Get current date 17392451dbcc4f9641df188326215b204b798eb70c46vandwalle long nowMs = System.currentTimeMillis(); 1740c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle int currentScore = -10000; 1741c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle // The untrusted network with highest score 174225ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande ScanDetail untrustedCandidate = null; 17432451dbcc4f9641df188326215b204b798eb70c46vandwalle // Look for untrusted scored network only if the current candidate is bad 1744c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle if (isBadCandidate(rssi24, rssi5)) { 174525ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande for (ScanDetail scanDetail : scanResultCache.values()) { 174625ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande ScanResult result = scanDetail.getScanResult(); 1747c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle // We look only at untrusted networks with a valid SSID 1748c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle // A trusted result would have been looked at thru it's Wificonfiguration 17498639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson if (TextUtils.isEmpty(result.SSID) || !result.untrusted || 17508639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson !isOpenNetwork(result)) { 1751c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle continue; 1752c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle } 17532c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson String quotedSSID = "\"" + result.SSID + "\""; 17542c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson if (mWifiConfigStore.mDeletedEphemeralSSIDs.contains(quotedSSID)) { 17552ce99b40c36ed0352b31aa85d5f9383d5f0506f5vandwalle // SSID had been Forgotten by user, then don't score it 17562ce99b40c36ed0352b31aa85d5f9383d5f0506f5vandwalle continue; 17572ce99b40c36ed0352b31aa85d5f9383d5f0506f5vandwalle } 1758833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle if ((nowMs - result.seen) < mScanResultAutoJoinAge) { 1759c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle // Increment usage count for the network 17602c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson mWifiConnectionStatistics.incrementOrAddUntrusted(quotedSSID, 0, 1); 1761c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle 17622c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson boolean isActiveNetwork = currentConfiguration != null 17632c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson && currentConfiguration.SSID.equals(quotedSSID); 176481c9ea6c343bc7f8d87095237e59844a974d0b70Jeff Davidson int score = mNetworkScoreCache.getNetworkScore(result, isActiveNetwork); 1765c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle if (score != WifiNetworkScoreCache.INVALID_NETWORK_SCORE 1766c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle && score > currentScore) { 1767c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle // Highest score: Select this candidate 1768c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle currentScore = score; 176925ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande untrustedCandidate = scanDetail; 1770c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle if (VDBG) { 1771c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle logDbg("AutoJoinController: found untrusted candidate " 1772c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle + result.SSID 1773dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + " RSSI=" + result.level 1774dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + " freq=" + result.frequency 1775dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + " score=" + score); 1776c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle } 1777f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1778f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1779f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1780f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1781c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle if (untrustedCandidate != null) { 17828639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson // At this point, we have an untrusted network candidate. 17838639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson // Create the new ephemeral configuration and see if we should switch over 1784833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle candidate = 1785833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle mWifiConfigStore.wifiConfigurationFromScanResult(untrustedCandidate); 1786833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle candidate.allowedKeyManagement.set(KeyMgmt.NONE); 1787833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle candidate.ephemeral = true; 1788fb650bfb264b7ff31c927498faf8343b5895c6abPierre Vandwalle candidate.dirty = true; 1789c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle } 1790c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle } 1791b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle 17921ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle long lastUnwanted = 17931ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle System.currentTimeMillis() 17941ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle - mWifiConfigStore.lastUnwantedNetworkDisconnectTimestamp; 17951ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle if (candidate == null 17961ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle && lastSelectedConfiguration == null 17971ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle && currentConfiguration == null 17981ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle && didBailDueToWeakRssi 17991ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle && (mWifiConfigStore.lastUnwantedNetworkDisconnectTimestamp == 0 1800dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle || lastUnwanted > (1000 * 60 * 60 * 24 * 7)) 18011ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle ) { 18021ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // We are bailing out of autojoin although we are seeing a weak configuration, and 18031ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // - we didn't find another valid candidate 18041ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // - we are not connected 18051ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // - without a user network selection choice 18061ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // - ConnectivityService has not triggered an unwanted network disconnect 18071ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // on this device for a week (hence most likely there is no SIM card or cellular) 18081ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // If all those conditions are met, then boost the RSSI of the weak networks 18091ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // that we are seeing so as we will eventually pick one 18101ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle if (weakRssiBailCount < 10) 18111ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle weakRssiBailCount += 1; 18121ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle } else { 18131ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle if (weakRssiBailCount > 0) 18141ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle weakRssiBailCount -= 1; 18151ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle } 18161ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle 1817931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle /** 1818931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * If candidate is found, check the state of the connection so as 1819931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * to decide if we should be acting on this candidate and switching over 1820931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle */ 1821e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle int networkDelta = compareNetwork(candidate, lastSelectedConfiguration); 1822b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle if (DBG && candidate != null) { 1823b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle String doSwitch = ""; 1824b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle String current = ""; 1825b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle if (networkDelta < 0) { 1826b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle doSwitch = " -> not switching"; 1827b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle } 1828b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle if (currentConfiguration != null) { 18292f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle current = " with current " + currentConfiguration.configKey(); 1830b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle } 1831b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg("attemptAutoJoin networkSwitching candidate " 1832b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle + candidate.configKey() 1833b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + current 1834c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle + " linked=" + (currentConfiguration != null 1835dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle && currentConfiguration.isLinked(candidate)) 1836b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + " : delta=" 1837b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + Integer.toString(networkDelta) + " " 1838b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + doSwitch); 1839b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } 18404dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 1841931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle /** 1842931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * Ask WifiStateMachine permission to switch : 1843931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * if user is currently streaming voice traffic, 1844931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * then we should not be allowed to switch regardless of the delta 1845931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle */ 184677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (mWifiStateMachine.shouldSwitchNetwork(networkDelta)) { // !!! JNo: Here! 1847b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle if (mStaStaSupported) { 1848b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle logDbg("mStaStaSupported --> error do nothing now "); 1849b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } else { 1850b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle if (currentConfiguration != null && currentConfiguration.isLinked(candidate)) { 1851b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle networkSwitchType = AUTO_JOIN_EXTENDED_ROAMING; 1852b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } else { 1853b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle networkSwitchType = AUTO_JOIN_OUT_OF_NETWORK_ROAMING; 1854b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } 1855b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle if (DBG) { 1856b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle logDbg("AutoJoin auto connect with netId " 1857b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle + Integer.toString(candidate.networkId) 1858b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle + " to " + candidate.configKey()); 1859b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } 18602451dbcc4f9641df188326215b204b798eb70c46vandwalle if (didOverride) { 18612451dbcc4f9641df188326215b204b798eb70c46vandwalle candidate.numScorerOverrideAndSwitchedNetwork++; 18622451dbcc4f9641df188326215b204b798eb70c46vandwalle } 1863c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle candidate.numAssociation++; 1864e8c89583e489d451880471b7cc7659bd9fa802f4vandwalle mWifiConnectionStatistics.numAutoJoinAttempt++; 18659f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle 18662c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson if (candidate.ephemeral) { 18672c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson // We found a new candidate that we are going to connect to, then 18682c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson // increase its connection count 18692c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson mWifiConnectionStatistics. 18702c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson incrementOrAddUntrusted(candidate.SSID, 1, 0); 18712c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson } 18722c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson 18732f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle if (candidate.BSSID == null || candidate.BSSID.equals("any")) { 18742f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle // First step we selected the configuration we want to connect to 18752f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle // Second step: Look for the best Scan result for this configuration 18762f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle // TODO this algorithm should really be done in one step 18772f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle String currentBSSID = mWifiStateMachine.getCurrentBSSID(); 1878833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle ScanResult roamCandidate = 1879833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle attemptRoam(null, candidate, mScanResultAutoJoinAge, null); 18802f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle if (roamCandidate != null && currentBSSID != null 18812f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle && currentBSSID.equals(roamCandidate.BSSID)) { 18822f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle // Sanity, we were already asociated to that candidate 18832f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle roamCandidate = null; 18842f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle } 18852f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle if (roamCandidate != null && roamCandidate.is5GHz()) { 18862f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle // If the configuration hasn't a default BSSID selected, and the best 18872f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle // candidate is 5GHZ, then select this candidate so as WifiStateMachine and 18882f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle // supplicant will pick it first 18892f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle candidate.autoJoinBSSID = roamCandidate.BSSID; 18902f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle if (VDBG) { 18912f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle logDbg("AutoJoinController: lock to 5GHz " 18922f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle + candidate.autoJoinBSSID 18932f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle + " RSSI=" + roamCandidate.level 18942f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle + " freq=" + roamCandidate.frequency); 18952f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle } 1896448c9536a302c58a79e271b1721c08b8882f800evandwalle } else { 1897448c9536a302c58a79e271b1721c08b8882f800evandwalle // We couldnt find a roam candidate 1898448c9536a302c58a79e271b1721c08b8882f800evandwalle candidate.autoJoinBSSID = "any"; 18999f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle } 19009f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle } 1901448c9536a302c58a79e271b1721c08b8882f800evandwalle mWifiStateMachine.sendMessage(WifiStateMachine.CMD_AUTO_CONNECT, 1902dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle candidate.networkId, networkSwitchType, candidate); 190368fee36dac1dda5c596c00ef33fdbc0962e9ec9fvandwalle found = true; 19044dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 1905b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } 19064dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 1907d4c25fd76644d5490700ae69fada4669de5193a1Pierre Vandwalle if (networkSwitchType == AUTO_JOIN_IDLE && !mWifiConfigStore.enableHalBasedPno.get()) { 1908e67ec726c07410073575473c0f50dc737629f5davandwalle String currentBSSID = mWifiStateMachine.getCurrentBSSID(); 1909931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Attempt same WifiConfiguration roaming 1910833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle ScanResult roamCandidate = 1911833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle attemptRoam(null, currentConfiguration, mScanResultAutoJoinAge, currentBSSID); 1912e67ec726c07410073575473c0f50dc737629f5davandwalle if (roamCandidate != null && currentBSSID != null 1913e67ec726c07410073575473c0f50dc737629f5davandwalle && currentBSSID.equals(roamCandidate.BSSID)) { 1914e67ec726c07410073575473c0f50dc737629f5davandwalle roamCandidate = null; 1915e67ec726c07410073575473c0f50dc737629f5davandwalle } 19162f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle if (roamCandidate != null && mWifiStateMachine.shouldSwitchNetwork(999)) { 1917b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle if (DBG) { 1918b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle logDbg("AutoJoin auto roam with netId " 1919b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle + Integer.toString(currentConfiguration.networkId) 1920b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle + " " + currentConfiguration.configKey() + " to BSSID=" 1921b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle + roamCandidate.BSSID + " freq=" + roamCandidate.frequency 19221ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle + " RSSI=" + roamCandidate.level); 1923b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } 1924b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle networkSwitchType = AUTO_JOIN_ROAMING; 1925e8c89583e489d451880471b7cc7659bd9fa802f4vandwalle mWifiConnectionStatistics.numAutoRoamAttempt++; 1926e8c89583e489d451880471b7cc7659bd9fa802f4vandwalle 1927b07da189850a4bfa268f8ab9be7867935eb2ecb5vandwalle mWifiStateMachine.sendMessage(WifiStateMachine.CMD_AUTO_ROAM, 1928dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle currentConfiguration.networkId, 1, roamCandidate); 192968fee36dac1dda5c596c00ef33fdbc0962e9ec9fvandwalle found = true; 1930f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1931f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1932b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle if (VDBG) logDbg("Done attemptAutoJoin status=" + Integer.toString(networkSwitchType)); 193368fee36dac1dda5c596c00ef33fdbc0962e9ec9fvandwalle return found; 1934f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 193577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 193677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist private void logDenial(String reason, WifiConfiguration config) { 193777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (!DBG) { 193877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return; 193977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 194077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist logDbg(reason + config.toString()); 194177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 1942dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle 1943dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle WifiConfiguration getWifiConfiguration(WifiNative.WifiPnoNetwork network) { 1944dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (network.configKey != null) { 1945dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle return mWifiConfigStore.getWifiConfiguration(network.configKey); 1946dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 1947dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle return null; 1948dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 1949dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle 1950dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle ArrayList<WifiNative.WifiPnoNetwork> getPnoList(WifiConfiguration current) { 1951dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle int size = -1; 19529ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle ArrayList<WifiNative.WifiPnoNetwork> list = new ArrayList<WifiNative.WifiPnoNetwork>(); 1953dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle 1954b0b0cc202b7d7aaad7b3f69d73e9b58ea2968b05Pierre Vandwalle if (mWifiConfigStore.mCachedPnoList != null) { 1955b0b0cc202b7d7aaad7b3f69d73e9b58ea2968b05Pierre Vandwalle size = mWifiConfigStore.mCachedPnoList.size(); 1956dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 1957dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle 195821d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle if (DBG) { 195921d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle String s = ""; 196021d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle if (current != null) { 196121d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle s = " for: " + current.configKey(); 196221d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle } 196321d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle Log.e(TAG, " get Pno List total size:" + size + s); 196421d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle } 1965dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (current != null) { 1966dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle String configKey = current.configKey(); 1967dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle /** 1968dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * If we are currently associated to a WifiConfiguration then include 1969dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * only those networks that have a higher priority 1970dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle */ 1971b0b0cc202b7d7aaad7b3f69d73e9b58ea2968b05Pierre Vandwalle for (WifiNative.WifiPnoNetwork network : mWifiConfigStore.mCachedPnoList) { 1972dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle WifiConfiguration config = getWifiConfiguration(network); 19739ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle if (config == null) { 19749ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle continue; 19759ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle } 19769ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle if (config.autoJoinStatus 19779ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle >= WifiConfiguration.AUTO_JOIN_DISABLED_NO_CREDENTIALS) { 19789ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle continue; 19799ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle } 19809ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle 19819ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle if (!configKey.equals(network.configKey)) { 198221d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle int choice = getConnectChoice(config, current, true); 1983b0b0cc202b7d7aaad7b3f69d73e9b58ea2968b05Pierre Vandwalle if (choice > 0) { 1984b0b0cc202b7d7aaad7b3f69d73e9b58ea2968b05Pierre Vandwalle // config is of higher priority 198521d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle if (DBG) { 198621d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle Log.e(TAG, " Pno List adding:" + network.configKey 198721d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle + " choice " + choice); 198821d43c487ca1f719cd2c170e1fac88c7b62a836aPierre Vandwalle } 1989dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle list.add(network); 1990b0b0cc202b7d7aaad7b3f69d73e9b58ea2968b05Pierre Vandwalle network.rssi_threshold = mWifiConfigStore.thresholdGoodRssi24.get(); 1991dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 1992dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 1993dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 1994dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } else { 19959ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle for (WifiNative.WifiPnoNetwork network : mWifiConfigStore.mCachedPnoList) { 19969ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle WifiConfiguration config = getWifiConfiguration(network); 19979ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle if (config == null) { 19989ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle continue; 19999ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle } 20009ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle if (config.autoJoinStatus 20019ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle >= WifiConfiguration.AUTO_JOIN_DISABLED_NO_CREDENTIALS) { 20029ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle continue; 20039ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle } 20049ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle list.add(network); 20059ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle network.rssi_threshold = mWifiConfigStore.thresholdGoodRssi24.get(); 20069ccffbb6c3fe8eaa7d70cc3076d0dc3c6a9073e7Pierre Vandwalle } 2007dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 2008dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle return list; 2009dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 2010f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle} 2011f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 2012