WifiAutoJoinController.java revision 87df79e235c64f7062d0c50658fe1999b1225435
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 "; 74ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle 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 127dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle /** 128dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * Cached PNO list, it is updated when WifiConfiguration changes due to user input. 129dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle */ 130dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle ArrayList<WifiNative.WifiPnoNetwork> mCachedPnoList = null; 131dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle 132f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle WifiAutoJoinController(Context c, WifiStateMachine w, WifiConfigStore s, 133c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle WifiConnectionStatistics st, WifiNative n) { 134f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle mContext = c; 135f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle mWifiStateMachine = w; 136f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle mWifiConfigStore = s; 137f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle mWifiNative = n; 138f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle mNetworkScoreCache = null; 139c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle mWifiConnectionStatistics = st; 14021bc54cb37a0085b1c909cb4d55ebb12a2facefbvandwalle scoreManager = 14121bc54cb37a0085b1c909cb4d55ebb12a2facefbvandwalle (NetworkScoreManager) mContext.getSystemService(Context.NETWORK_SCORE_SERVICE); 142f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (scoreManager == null) 143f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle logDbg("Registered scoreManager NULL " + " service " + Context.NETWORK_SCORE_SERVICE); 144f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 145f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (scoreManager != null) { 146f13817203179f41620514718c8668ae7e418f8afJeff Davidson mNetworkScoreCache = new WifiNetworkScoreCache(mContext); 147f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle scoreManager.registerNetworkScoreCache(NetworkKey.TYPE_WIFI, mNetworkScoreCache); 148f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } else { 149f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle logDbg("No network score service: Couldnt register as a WiFi score Manager, type=" 150f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle + Integer.toString(NetworkKey.TYPE_WIFI) 151f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle + " service " + Context.NETWORK_SCORE_SERVICE); 152f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle mNetworkScoreCache = null; 153f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 154f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 155f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 156ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle void enableVerboseLogging(int verbose) { 157dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (verbose > 0) { 158abde872adced15dfb6781fb71959453d963326dbYuhao Zheng DBG = true; 159ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle VDBG = true; 160ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle } else { 161abde872adced15dfb6781fb71959453d963326dbYuhao Zheng DBG = false; 162ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle VDBG = false; 163ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle } 164ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle } 165ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle 166931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle /** 167931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * Flush out scan results older than mScanResultMaximumAge 168931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle */ 169f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle private void ageScanResultsOut(int delay) { 170f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (delay <= 0) { 171931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle delay = mScanResultMaximumAge; // Something sane 172f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 173b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle long milli = System.currentTimeMillis(); 174f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (VDBG) { 175f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle logDbg("ageScanResultsOut delay " + Integer.valueOf(delay) + " size " 176f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle + Integer.valueOf(scanResultCache.size()) + " now " + Long.valueOf(milli)); 177f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 178f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 179dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle Iterator<HashMap.Entry<String, ScanDetail>> iter = scanResultCache.entrySet().iterator(); 180f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle while (iter.hasNext()) { 181dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle HashMap.Entry<String, ScanDetail> entry = iter.next(); 18225ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande ScanDetail scanDetail = entry.getValue(); 18325ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande if ((scanDetail.getSeen() + delay) < milli) { 184f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle iter.remove(); 185f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 186f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 187f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 188f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 189ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist 190d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande void averageRssiAndRemoveFromCache(ScanResult result) { 191d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande // Fetch the previous instance for this result 19225ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande ScanDetail sd = scanResultCache.get(result.BSSID); 19325ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande if (sd != null) { 19425ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande ScanResult sr = sd.getScanResult(); 195d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande if (mWifiConfigStore.scanResultRssiLevelPatchUp != 0 196d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande && result.level == 0 197d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande && sr.level < -20) { 198d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande // A 'zero' RSSI reading is most likely a chip problem which returns 199d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande // an unknown RSSI, hence ignore it 200d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande result.level = sr.level; 201ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist } 202ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist 203d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande // If there was a previous cache result for this BSSID, average the RSSI values 204d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande result.averageRssi(sr.level, sr.seen, mScanResultMaximumAge); 205ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist 206d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande // Remove the previous Scan Result - this is not necessary 207d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande scanResultCache.remove(result.BSSID); 208d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande } else if (mWifiConfigStore.scanResultRssiLevelPatchUp != 0 && result.level == 0) { 209d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande // A 'zero' RSSI reading is most likely a chip problem which returns 210d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande // an unknown RSSI, hence initialize it to a sane value 211d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande result.level = mWifiConfigStore.scanResultRssiLevelPatchUp; 212ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist } 213ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist } 214ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist 215d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande void addToUnscoredNetworks(ScanResult result, List<NetworkKey> unknownScanResults) { 216d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande WifiKey wkey; 217d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande // Quoted SSIDs are the only one valid at this stage 218d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande try { 219d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande wkey = new WifiKey("\"" + result.SSID + "\"", result.BSSID); 220d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande } catch (IllegalArgumentException e) { 221d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande logDbg("AutoJoinController: received badly encoded SSID=[" + result.SSID + 222d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande "] ->skipping this network"); 223d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande wkey = null; 224d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande } 225d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande if (wkey != null) { 226d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande NetworkKey nkey = new NetworkKey(wkey); 227d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande //if we don't know this scan result then request a score from the scorer 228d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande unknownScanResults.add(nkey); 229ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist } 230d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande if (VDBG) { 231d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande String cap = ""; 232d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande if (result.capabilities != null) 233d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande cap = result.capabilities; 234d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande logDbg(result.SSID + " " + result.BSSID + " rssi=" 235d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande + result.level + " cap " + cap + " is not scored"); 236ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist } 237ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist } 238ef1567e413c9ed5f5c4fdb9e354861632f7b2f87Jan Nordqvist 23977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist int addToScanCache(List<ScanDetail> scanList) { 240be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle int numScanResultsKnown = 0; // Record number of scan results we knew about 241be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle WifiConfiguration associatedConfig = null; 2427b581f46f6c9bc6edf0edd287d47106712fb2144vandwalle boolean didAssociate = false; 2438242cc81341c80ab5bc057ffdad99a3a1d95be5cvandwalle long now = System.currentTimeMillis(); 244f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 2450c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle ArrayList<NetworkKey> unknownScanResults = new ArrayList<NetworkKey>(); 2460c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle 247dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle for (ScanDetail scanDetail : scanList) { 24877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist ScanResult result = scanDetail.getScanResult(); 2491fcf3c6d2b9ed65573e1e7c55fc5a30ebd364c4fYuhao Zheng if (result.SSID == null) continue; 250c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle 251c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle // Make sure we record the last time we saw this result 25225ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande scanDetail.setSeen(); 253f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 254d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande averageRssiAndRemoveFromCache(result); 255e8c89583e489d451880471b7cc7659bd9fa802f4vandwalle 256e8c89583e489d451880471b7cc7659bd9fa802f4vandwalle if (!mNetworkScoreCache.isScoredNetwork(result)) { 257d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande addToUnscoredNetworks(result, unknownScanResults); 2580c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle } else { 259e8c89583e489d451880471b7cc7659bd9fa802f4vandwalle if (VDBG) { 2607b581f46f6c9bc6edf0edd287d47106712fb2144vandwalle String cap = ""; 2617b581f46f6c9bc6edf0edd287d47106712fb2144vandwalle if (result.capabilities != null) 2627b581f46f6c9bc6edf0edd287d47106712fb2144vandwalle cap = result.capabilities; 263e8c89583e489d451880471b7cc7659bd9fa802f4vandwalle int score = mNetworkScoreCache.getNetworkScore(result); 264e8c89583e489d451880471b7cc7659bd9fa802f4vandwalle logDbg(result.SSID + " " + result.BSSID + " rssi=" 2657b581f46f6c9bc6edf0edd287d47106712fb2144vandwalle + result.level + " cap " + cap + " is scored : " + score); 2660c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle } 267f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 268f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 269e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // scanResultCache.put(result.BSSID, new ScanResult(result)); 27025ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande scanResultCache.put(result.BSSID, scanDetail); 271be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle // Add this BSSID to the scanResultCache of a Saved WifiConfiguration 272d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande didAssociate = mWifiConfigStore.updateSavedNetworkHistory(scanDetail); 273f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 274be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle // If not successful, try to associate this BSSID to an existing Saved WifiConfiguration 2757b581f46f6c9bc6edf0edd287d47106712fb2144vandwalle if (!didAssociate) { 276be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle // We couldn't associate the scan result to a Saved WifiConfiguration 277c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle // Hence it is untrusted 278c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle result.untrusted = true; 27925ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande associatedConfig = mWifiConfigStore.associateWithConfiguration(scanDetail); 2801fcf3c6d2b9ed65573e1e7c55fc5a30ebd364c4fYuhao Zheng if (associatedConfig != null && associatedConfig.SSID != null) { 281f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (VDBG) { 282f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle logDbg("addToScanCache save associated config " 2838242cc81341c80ab5bc057ffdad99a3a1d95be5cvandwalle + associatedConfig.SSID + " with " + result.SSID 2848242cc81341c80ab5bc057ffdad99a3a1d95be5cvandwalle + " status " + associatedConfig.autoJoinStatus 2858242cc81341c80ab5bc057ffdad99a3a1d95be5cvandwalle + " reason " + associatedConfig.disableReason 2868242cc81341c80ab5bc057ffdad99a3a1d95be5cvandwalle + " tsp " + associatedConfig.blackListTimestamp 2878242cc81341c80ab5bc057ffdad99a3a1d95be5cvandwalle + " was " + (now - associatedConfig.blackListTimestamp)); 288f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 289be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle mWifiStateMachine.sendMessage( 290be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle WifiStateMachine.CMD_AUTO_SAVE_NETWORK, associatedConfig); 2917b581f46f6c9bc6edf0edd287d47106712fb2144vandwalle didAssociate = true; 292f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 2930d616ef3bf635dff8722e064c0be842676390ed8vandwalle } else { 2940d616ef3bf635dff8722e064c0be842676390ed8vandwalle // If the scan result has been blacklisted fir 18 hours -> unblacklist 2950d616ef3bf635dff8722e064c0be842676390ed8vandwalle if ((now - result.blackListTimestamp) > loseBlackListHardMilli) { 2960d616ef3bf635dff8722e064c0be842676390ed8vandwalle result.setAutoJoinStatus(ScanResult.ENABLED); 2970d616ef3bf635dff8722e064c0be842676390ed8vandwalle } 298f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 2997b581f46f6c9bc6edf0edd287d47106712fb2144vandwalle if (didAssociate) { 300be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle numScanResultsKnown++; 301dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle result.isAutoJoinCandidate++; 302a0708b09ad17b086c008ab100aec7143d7613c80vandwalle } else { 303a0708b09ad17b086c008ab100aec7143d7613c80vandwalle result.isAutoJoinCandidate = 0; 304be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle } 305f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 3060c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle 3070c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle if (unknownScanResults.size() != 0) { 3080c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle NetworkKey[] newKeys = 3090c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle unknownScanResults.toArray(new NetworkKey[unknownScanResults.size()]); 310931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Kick the score manager, we will get updated scores asynchronously 3110c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle scoreManager.requestScores(newKeys); 3120c8b99a3b78e458a5617cc449e2efe69c5bdd531vandwalle } 313be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle return numScanResultsKnown; 314f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 315f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 316f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle void logDbg(String message) { 3170888ce6f90bdaeee799dd8361ea4781e23a33b87vandwalle logDbg(message, false); 318ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle } 319ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle 320ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle void logDbg(String message, boolean stackTrace) { 321ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle if (stackTrace) { 32233f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande Log.d(TAG, message + " stack:" 323ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle + Thread.currentThread().getStackTrace()[2].getMethodName() + " - " 324ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle + Thread.currentThread().getStackTrace()[3].getMethodName() + " - " 325ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle + Thread.currentThread().getStackTrace()[4].getMethodName() + " - " 326ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle + Thread.currentThread().getStackTrace()[5].getMethodName()); 327ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle } else { 32833f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande Log.d(TAG, message); 329ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle } 330f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 331f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 332931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Called directly from WifiStateMachine 333be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle int newSupplicantResults(boolean doAutoJoin) { 334be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle int numScanResultsKnown; 33577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist List<ScanDetail> scanList = mWifiStateMachine.getScanResultsListNoCopyUnsync(); 336be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle numScanResultsKnown = addToScanCache(scanList); 337f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle ageScanResultsOut(mScanResultMaximumAge); 338be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle if (DBG) { 339be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle logDbg("newSupplicantResults size=" + Integer.valueOf(scanResultCache.size()) 340dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + " known=" + numScanResultsKnown + " " 341dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + doAutoJoin); 342be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle } 3437806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle if (doAutoJoin) { 3447806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle attemptAutoJoin(); 3457806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle } 346005c1ef113192f898499a407dd266393a8d6b076vandwalle mWifiConfigStore.writeKnownNetworkHistory(false); 347be3095ed758fca076b9ccb9fdae48f7f865c078avandwalle return numScanResultsKnown; 348f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 349f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 350f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 351931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle /** 352931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * Not used at the moment 353f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * should be a call back from WifiScanner HAL ?? 354f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * this function is not hooked and working yet, it will receive scan results from WifiScanners 355f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * with the list of IEs,then populate the capabilities by parsing the IEs and inject the scan 356f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * results as normal. 357f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle */ 358f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle void newHalScanResults() { 35977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist List<ScanDetail> scanList = null;//mWifiScanner.syncGetScanResultsList(); 360f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle String akm = WifiParser.parse_akm(null, null); 361f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle logDbg(akm); 362f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle addToScanCache(scanList); 363f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle ageScanResultsOut(0); 364f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle attemptAutoJoin(); 365005c1ef113192f898499a407dd266393a8d6b076vandwalle mWifiConfigStore.writeKnownNetworkHistory(false); 366f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 367f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 368931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle /** 369dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * network link quality changed, called directly from WifiTrafficPoller, 370931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * or by listening to Link Quality intent 371931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle */ 372f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle void linkQualitySignificantChange() { 373f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle attemptAutoJoin(); 374f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 375f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 376931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle /** 377f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * compare a WifiConfiguration against the current network, return a delta score 378f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * If not associated, and the candidate will always be better 379f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * For instance if the candidate is a home network versus an unknown public wifi, 380f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle * the delta will be infinite, else compare Kepler scores etc… 381b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle * Negatve return values from this functions are meaningless per se, just trying to 382b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle * keep them distinct for debug purpose (i.e. -1, -2 etc...) 383931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle */ 384e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle private int compareNetwork(WifiConfiguration candidate, 385e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle String lastSelectedConfiguration) { 386b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle if (candidate == null) 387b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle return -3; 388b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle 389f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle WifiConfiguration currentNetwork = mWifiStateMachine.getCurrentWifiConfiguration(); 390b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle if (currentNetwork == null) { 391c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle // Return any absurdly high score, if we are not connected there is no current 392c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle // network to... 393dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle return 1000; 394b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle } 395f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 396f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (candidate.configKey(true).equals(currentNetwork.configKey(true))) { 397b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle return -2; 398f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 399f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 400b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle if (DBG) { 401e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle logDbg("compareNetwork will compare " + candidate.configKey() 402e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + " with current " + currentNetwork.configKey()); 403b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle } 404833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle int order = compareWifiConfigurations(currentNetwork, candidate); 405e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle 406e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // The lastSelectedConfiguration is the configuration the user has manually selected 407e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // thru WifiPicker, or that a 3rd party app asked us to connect to via the 408e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // enableNetwork with disableOthers=true WifiManager API 409e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // As this is a direct user choice, we strongly prefer this configuration, 410e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // hence give +/-100 411e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle if ((lastSelectedConfiguration != null) 412e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle && currentNetwork.configKey().equals(lastSelectedConfiguration)) { 413e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // currentNetwork is the last selected configuration, 414e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // so keep it above connect choices (+/-60) and 415e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // above RSSI/scorer based selection of linked configuration (+/- 50) 416e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // by reducing order by -100 417e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle order = order - 100; 418dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 419e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle logDbg(" ...and prefers -100 " + currentNetwork.configKey() 420e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + " over " + candidate.configKey() 421e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + " because it is the last selected -> " 422e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + Integer.toString(order)); 423e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle } 424e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle } else if ((lastSelectedConfiguration != null) 425e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle && candidate.configKey().equals(lastSelectedConfiguration)) { 426e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // candidate is the last selected configuration, 427e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // so keep it above connect choices (+/-60) and 428e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // above RSSI/scorer based selection of linked configuration (+/- 50) 429e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // by increasing order by +100 430e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle order = order + 100; 431dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 432e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle logDbg(" ...and prefers +100 " + candidate.configKey() 433e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + " over " + currentNetwork.configKey() 434e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + " because it is the last selected -> " 435e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + Integer.toString(order)); 436e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle } 437e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle } 438e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle 439ede507649471f1113e9e1919812115ca5a6bc0c8vandwalle return order; 440f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 441f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 442ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle /** 443ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle * update the network history fields fo that configuration 444ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle * - if userTriggered, we mark the configuration as "non selfAdded" since the user has seen it 445ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle * and took over management 446ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle * - if it is a "connect", remember which network were there at the point of the connect, so 447ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle * as those networks get a relative lower score than the selected configuration 44862f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle * 449ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle * @param netId 450ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle * @param userTriggered : if the update come from WiFiManager 451dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * @param connect : if the update includes a connect 452931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle */ 45362f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle public void updateConfigurationHistory(int netId, boolean userTriggered, boolean connect) { 454f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle WifiConfiguration selected = mWifiConfigStore.getWifiConfiguration(netId); 455f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (selected == null) { 456c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle logDbg("updateConfigurationHistory nid=" + netId + " no selected configuration!"); 457f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle return; 458f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 459f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 460e86c962bb99a8b126ed64ddcc6b112161549e26dvandwalle if (selected.SSID == null) { 461c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle logDbg("updateConfigurationHistory nid=" + netId + 462c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle " no SSID in selected configuration!"); 463e86c962bb99a8b126ed64ddcc6b112161549e26dvandwalle return; 464e86c962bb99a8b126ed64ddcc6b112161549e26dvandwalle } 465e86c962bb99a8b126ed64ddcc6b112161549e26dvandwalle 46662f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle if (userTriggered) { 467931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Reenable autojoin for this network, 46862f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle // since the user want to connect to this configuration 46927355a942653264388e909a4276196ee63e57811vandwalle selected.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_ENABLED); 47062f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle selected.selfAdded = false; 471e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle selected.dirty = true; 47262f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle } 473f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 474992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle if (DBG && userTriggered) { 475f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (selected.connectChoices != null) { 476ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle logDbg("updateConfigurationHistory will update " 477f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle + Integer.toString(netId) + " now: " 478992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle + Integer.toString(selected.connectChoices.size()) 479992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle + " uid=" + Integer.toString(selected.creatorUid), true); 480f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } else { 481ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle logDbg("updateConfigurationHistory will update " 482992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle + Integer.toString(netId) 483992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle + " uid=" + Integer.toString(selected.creatorUid), true); 484f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 485f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 486f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 487ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle if (connect && userTriggered) { 488ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle boolean found = false; 4892451dbcc4f9641df188326215b204b798eb70c46vandwalle int choice = 0; 490c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle int size = 0; 4919f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle 4929f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle // Reset the triggered disabled count, because user wanted to connect to this 4939f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle // configuration, and we were not. 4949f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle selected.numUserTriggeredWifiDisableLowRSSI = 0; 4959f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle selected.numUserTriggeredWifiDisableBadRSSI = 0; 4969f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle selected.numUserTriggeredWifiDisableNotHighRSSI = 0; 4979f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle selected.numUserTriggeredJoinAttempts++; 4989f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle 49962f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle List<WifiConfiguration> networks = 50062f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle mWifiConfigStore.getRecentConfiguredNetworks(12000, false); 501c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle if (networks != null) size = networks.size(); 502c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle logDbg("updateConfigurationHistory found " + size + " networks"); 50362f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle if (networks != null) { 50462f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle for (WifiConfiguration config : networks) { 505992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle if (DBG) { 506992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle logDbg("updateConfigurationHistory got " + config.SSID + " nid=" 507992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle + Integer.toString(config.networkId)); 508992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle } 509f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 51062f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle if (selected.configKey(true).equals(config.configKey(true))) { 511ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle found = true; 51262f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle continue; 51362f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle } 514f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 51587df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle // If the selection was made while config was visible with reasonably good RSSI 51687df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle // then register the user preference, else ignore 51787df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle if (config.visibility == null || 51887df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle (config.visibility.rssi24 < mWifiConfigStore.thresholdBadRssi24.get() 51987df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle && config.visibility.rssi5 < mWifiConfigStore.thresholdBadRssi5.get()) 52087df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle ) { 52187df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle continue; 52262f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle } 523f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 52487df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle choice = MAX_RSSI_DELTA + 10; // Make sure the choice overrides the RSSI diff 52587df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle 526931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // The selected configuration was preferred over a recently seen config 527931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // hence remember the user's choice: 528931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // add the recently seen config to the selected's connectChoices array 529ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle 530ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle if (selected.connectChoices == null) { 531ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle selected.connectChoices = new HashMap<String, Integer>(); 532ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle } 533ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle 534ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle logDbg("updateConfigurationHistory add a choice " + selected.configKey(true) 5350888ce6f90bdaeee799dd8361ea4781e23a33b87vandwalle + " over " + config.configKey(true) 5362451dbcc4f9641df188326215b204b798eb70c46vandwalle + " choice " + Integer.toString(choice)); 537cf5b8eb8a08c45bd4a82f1f4bb789c8a1b08744fvandwalle 5382f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle // Add the visible config to the selected's connect choice list 5392f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle selected.connectChoices.put(config.configKey(true), choice); 540f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 54162f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle if (config.connectChoices != null) { 542ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle if (VDBG) { 543ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle logDbg("updateConfigurationHistory will remove " 54462f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle + selected.configKey(true) + " from " + config.configKey(true)); 545ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle } 546931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Remove the selected from the recently seen config's connectChoice list 54762f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle config.connectChoices.remove(selected.configKey(true)); 5480888ce6f90bdaeee799dd8361ea4781e23a33b87vandwalle 5490888ce6f90bdaeee799dd8361ea4781e23a33b87vandwalle if (selected.linkedConfigurations != null) { 550dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle // Remove the selected's linked configuration from the 551dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle // recently seen config's connectChoice list 552dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle for (String key : selected.linkedConfigurations.keySet()) { 553dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle config.connectChoices.remove(key); 554dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 5550888ce6f90bdaeee799dd8361ea4781e23a33b87vandwalle } 55662f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle } 557ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle } 558ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle if (found == false) { 559dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle // We haven't found the configuration that the user just selected in our 560dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle // scan cache. 561dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle // In that case we will need a new scan before attempting to connect to this 562dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle // configuration anyhow and thus we can process the scan results then. 563dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle logDbg("updateConfigurationHistory try to connect to an old network!! : " 564dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + selected.configKey()); 56562f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle } 566f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 56762f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle if (selected.connectChoices != null) { 56862f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle if (VDBG) 569ecd2b88214b5d214fd1f63a9560caff9058912ddvandwalle logDbg("updateConfigurationHistory " + Integer.toString(netId) 57062f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle + " now: " + Integer.toString(selected.connectChoices.size())); 57162f1d0ca8ea4466628f6ff179b1f20e1279fa7e0vandwalle } 572f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 573f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 574992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle 575931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // TODO: write only if something changed 576992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle if (userTriggered || connect) { 577005c1ef113192f898499a407dd266393a8d6b076vandwalle mWifiConfigStore.writeKnownNetworkHistory(false); 578992ae00f25a9cc22cf5db3261bd7e72927069cf7vandwalle } 579f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 580f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 5812451dbcc4f9641df188326215b204b798eb70c46vandwalle int getConnectChoice(WifiConfiguration source, WifiConfiguration target) { 5822451dbcc4f9641df188326215b204b798eb70c46vandwalle Integer choice = null; 5832451dbcc4f9641df188326215b204b798eb70c46vandwalle if (source == null || target == null) { 5842451dbcc4f9641df188326215b204b798eb70c46vandwalle return 0; 585f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 586f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 5872451dbcc4f9641df188326215b204b798eb70c46vandwalle if (source.connectChoices != null 5882451dbcc4f9641df188326215b204b798eb70c46vandwalle && source.connectChoices.containsKey(target.configKey(true))) { 5892451dbcc4f9641df188326215b204b798eb70c46vandwalle choice = source.connectChoices.get(target.configKey(true)); 5902451dbcc4f9641df188326215b204b798eb70c46vandwalle } else if (source.linkedConfigurations != null) { 591f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle for (String key : source.linkedConfigurations.keySet()) { 592f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle WifiConfiguration config = mWifiConfigStore.getWifiConfiguration(key); 593f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (config != null) { 594f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (config.connectChoices != null) { 5952451dbcc4f9641df188326215b204b798eb70c46vandwalle choice = config.connectChoices.get(target.configKey(true)); 596f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 597f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 598f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 5992451dbcc4f9641df188326215b204b798eb70c46vandwalle } 6002451dbcc4f9641df188326215b204b798eb70c46vandwalle 6012451dbcc4f9641df188326215b204b798eb70c46vandwalle if (choice == null) { 60233f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande // We didn't find the connect choice; fallback to some default choices 60333f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande int sourceScore = getSecurityScore(source); 60433f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande int targetScore = getSecurityScore(target); 6058eefaf2c281b44fb7a4d951ba587f447800c4b4fVinit Deshpande choice = sourceScore - targetScore; 60633f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande } 60733f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande 60833f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande if (choice < 0) { 60933f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande choice = 20; // Compatibility with older files 6102451dbcc4f9641df188326215b204b798eb70c46vandwalle } 61133f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande 61233f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande return choice; 6132451dbcc4f9641df188326215b204b798eb70c46vandwalle } 6142451dbcc4f9641df188326215b204b798eb70c46vandwalle 61533f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande int compareWifiConfigurationsFromVisibility(WifiConfiguration.Visibility a, int aRssiBoost, 616dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle String dbgA, WifiConfiguration.Visibility b, int bRssiBoost, String dbgB) { 6172451dbcc4f9641df188326215b204b798eb70c46vandwalle 618815788ba7838fc54310baed3deb9b95548e0ce69vandwalle int aRssiBoost5 = 0; // 5GHz RSSI boost to apply for purpose band selection (5GHz pref) 619815788ba7838fc54310baed3deb9b95548e0ce69vandwalle int bRssiBoost5 = 0; // 5GHz RSSI boost to apply for purpose band selection (5GHz pref) 620815788ba7838fc54310baed3deb9b95548e0ce69vandwalle 621815788ba7838fc54310baed3deb9b95548e0ce69vandwalle int aScore = 0; 622815788ba7838fc54310baed3deb9b95548e0ce69vandwalle int bScore = 0; 623815788ba7838fc54310baed3deb9b95548e0ce69vandwalle 624815788ba7838fc54310baed3deb9b95548e0ce69vandwalle boolean aPrefers5GHz = false; 625815788ba7838fc54310baed3deb9b95548e0ce69vandwalle boolean bPrefers5GHz = false; 6264dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 6272451dbcc4f9641df188326215b204b798eb70c46vandwalle /** 628815788ba7838fc54310baed3deb9b95548e0ce69vandwalle * Calculate a boost to apply to RSSI value of configuration we want to join on 5GHz: 629815788ba7838fc54310baed3deb9b95548e0ce69vandwalle * Boost RSSI value of 5GHz bands iff the base value is better than threshold, 630815788ba7838fc54310baed3deb9b95548e0ce69vandwalle * penalize the RSSI value of 5GHz band iff the base value is lower than threshold 6312451dbcc4f9641df188326215b204b798eb70c46vandwalle * This implements band preference where we prefer 5GHz if RSSI5 is good enough, whereas 6322451dbcc4f9641df188326215b204b798eb70c46vandwalle * we prefer 2.4GHz otherwise. 6332451dbcc4f9641df188326215b204b798eb70c46vandwalle */ 63433f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande aRssiBoost5 = rssiBoostFrom5GHzRssi(a.rssi5, dbgA + "->"); 63533f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande bRssiBoost5 = rssiBoostFrom5GHzRssi(b.rssi5, dbgB + "->"); 6362451dbcc4f9641df188326215b204b798eb70c46vandwalle 637815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // Select which band to use for a 63833f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande if (a.rssi5 + aRssiBoost5 > a.rssi24) { 6392451dbcc4f9641df188326215b204b798eb70c46vandwalle // Prefer a's 5GHz 640815788ba7838fc54310baed3deb9b95548e0ce69vandwalle aPrefers5GHz = true; 641815788ba7838fc54310baed3deb9b95548e0ce69vandwalle } 642815788ba7838fc54310baed3deb9b95548e0ce69vandwalle 643815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // Select which band to use for b 64433f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande if (b.rssi5 + bRssiBoost5 > b.rssi24) { 645815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // Prefer b's 5GHz 646815788ba7838fc54310baed3deb9b95548e0ce69vandwalle bPrefers5GHz = true; 647815788ba7838fc54310baed3deb9b95548e0ce69vandwalle } 648815788ba7838fc54310baed3deb9b95548e0ce69vandwalle 649815788ba7838fc54310baed3deb9b95548e0ce69vandwalle if (aPrefers5GHz) { 650815788ba7838fc54310baed3deb9b95548e0ce69vandwalle if (bPrefers5GHz) { 651815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // If both a and b are on 5GHz then we don't apply the 5GHz RSSI boost to either 652815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // one, but directly compare the RSSI values, this improves stability, 653815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // since the 5GHz RSSI boost can introduce large fluctuations 65433f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande aScore = a.rssi5 + aRssiBoost; 655815788ba7838fc54310baed3deb9b95548e0ce69vandwalle } else { 656815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // If only a is on 5GHz, then apply the 5GHz preference boost to a 65733f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande aScore = a.rssi5 + aRssiBoost + aRssiBoost5; 658815788ba7838fc54310baed3deb9b95548e0ce69vandwalle } 6592451dbcc4f9641df188326215b204b798eb70c46vandwalle } else { 66033f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande aScore = a.rssi24 + aRssiBoost; 661f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 6622451dbcc4f9641df188326215b204b798eb70c46vandwalle 663815788ba7838fc54310baed3deb9b95548e0ce69vandwalle if (bPrefers5GHz) { 664815788ba7838fc54310baed3deb9b95548e0ce69vandwalle if (aPrefers5GHz) { 665815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // If both a and b are on 5GHz then we don't apply the 5GHz RSSI boost to either 666815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // one, but directly compare the RSSI values, this improves stability, 667815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // since the 5GHz RSSI boost can introduce large fluctuations 66833f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande bScore = b.rssi5 + bRssiBoost; 669815788ba7838fc54310baed3deb9b95548e0ce69vandwalle } else { 670815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // If only b is on 5GHz, then apply the 5GHz preference boost to b 67133f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande bScore = b.rssi5 + bRssiBoost + bRssiBoost5; 672815788ba7838fc54310baed3deb9b95548e0ce69vandwalle } 673815788ba7838fc54310baed3deb9b95548e0ce69vandwalle } else { 67433f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande bScore = b.rssi24 + bRssiBoost; 675815788ba7838fc54310baed3deb9b95548e0ce69vandwalle } 67633f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande 677815788ba7838fc54310baed3deb9b95548e0ce69vandwalle if (VDBG) { 67833f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande logDbg(" " + dbgA + " is5=" + aPrefers5GHz + " score=" + aScore 67933f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande + " " + dbgB + " is5=" + bPrefers5GHz + " score=" + bScore); 680815788ba7838fc54310baed3deb9b95548e0ce69vandwalle } 681f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle 682f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle // Debug only, record RSSI comparison parameters 68333f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande if (a != null) { 68433f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande a.score = aScore; 68533f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande a.currentNetworkBoost = aRssiBoost; 68633f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande a.bandPreferenceBoost = aRssiBoost5; 687f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle } 68833f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande if (b != null) { 68933f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande b.score = bScore; 69033f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande b.currentNetworkBoost = bRssiBoost; 69133f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande b.bandPreferenceBoost = bRssiBoost5; 692f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle } 693f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle 694815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // Compare a and b 695815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // If a score is higher then a > b and the order is descending (negative) 696815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // If b score is higher then a < b and the order is ascending (positive) 697815788ba7838fc54310baed3deb9b95548e0ce69vandwalle return bScore - aScore; 698f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 699f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 7002451dbcc4f9641df188326215b204b798eb70c46vandwalle // Compare WifiConfiguration by RSSI, and return a comparison value in the range [-50, +50] 7012451dbcc4f9641df188326215b204b798eb70c46vandwalle // The result represents "approximately" an RSSI difference measured in dBM 7022451dbcc4f9641df188326215b204b798eb70c46vandwalle // Adjusted with various parameters: 7032451dbcc4f9641df188326215b204b798eb70c46vandwalle // +) current network gets a +15 boost 7042451dbcc4f9641df188326215b204b798eb70c46vandwalle // +) 5GHz signal, if they are strong enough, get a +15 or +25 boost, representing the 7052451dbcc4f9641df188326215b204b798eb70c46vandwalle // fact that at short range we prefer 5GHz band as it is cleaner of interference and 7062451dbcc4f9641df188326215b204b798eb70c46vandwalle // provides for wider channels 7072451dbcc4f9641df188326215b204b798eb70c46vandwalle int compareWifiConfigurationsRSSI(WifiConfiguration a, WifiConfiguration b, 7082451dbcc4f9641df188326215b204b798eb70c46vandwalle String currentConfiguration) { 709f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle int order = 0; 7102451dbcc4f9641df188326215b204b798eb70c46vandwalle 7112451dbcc4f9641df188326215b204b798eb70c46vandwalle // Boost used so as to favor current config 7122451dbcc4f9641df188326215b204b798eb70c46vandwalle int aRssiBoost = 0; 7132451dbcc4f9641df188326215b204b798eb70c46vandwalle int bRssiBoost = 0; 7142451dbcc4f9641df188326215b204b798eb70c46vandwalle 7152451dbcc4f9641df188326215b204b798eb70c46vandwalle // Retrieve the visibility 716f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle WifiConfiguration.Visibility astatus = a.visibility; 717f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle WifiConfiguration.Visibility bstatus = b.visibility; 718f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (astatus == null || bstatus == null) { 7192451dbcc4f9641df188326215b204b798eb70c46vandwalle // Error visibility wasn't set 720b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" compareWifiConfigurations NULL band status!"); 721f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle return 0; 722f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 7232451dbcc4f9641df188326215b204b798eb70c46vandwalle 7242451dbcc4f9641df188326215b204b798eb70c46vandwalle // Apply Hysteresis, boost RSSI of current configuration 7252451dbcc4f9641df188326215b204b798eb70c46vandwalle if (null != currentConfiguration) { 7262451dbcc4f9641df188326215b204b798eb70c46vandwalle if (a.configKey().equals(currentConfiguration)) { 72793a1fddee50a244d31036cddae6b7db6630fd93dvandwalle aRssiBoost = mWifiConfigStore.currentNetworkBoost; 7282451dbcc4f9641df188326215b204b798eb70c46vandwalle } else if (b.configKey().equals(currentConfiguration)) { 72993a1fddee50a244d31036cddae6b7db6630fd93dvandwalle bRssiBoost = mWifiConfigStore.currentNetworkBoost; 7302451dbcc4f9641df188326215b204b798eb70c46vandwalle } 7312451dbcc4f9641df188326215b204b798eb70c46vandwalle } 7322451dbcc4f9641df188326215b204b798eb70c46vandwalle 733dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 734b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" compareWifiConfigurationsRSSI: " + a.configKey() 735dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + " rssi=" + Integer.toString(astatus.rssi24) 736dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + "," + Integer.toString(astatus.rssi5) 737dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + " boost=" + Integer.toString(aRssiBoost) 738dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + " " + b.configKey() + " rssi=" 739dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + Integer.toString(bstatus.rssi24) + "," 740dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + Integer.toString(bstatus.rssi5) 741dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + " boost=" + Integer.toString(bRssiBoost) 7422451dbcc4f9641df188326215b204b798eb70c46vandwalle ); 743f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 7442451dbcc4f9641df188326215b204b798eb70c46vandwalle 74533f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande order = compareWifiConfigurationsFromVisibility( 74633f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande a.visibility, aRssiBoost, a.configKey(), 74733f9ad2442844df078dde3ae67961e7132a8a48dVinit Deshpande b.visibility, bRssiBoost, b.configKey()); 7482451dbcc4f9641df188326215b204b798eb70c46vandwalle 74987df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle // Normalize the order to [-50, +50] = [ -MAX_RSSI_DELTA, MAX_RSSI_DELTA] 75087df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle if (order > MAX_RSSI_DELTA) order = MAX_RSSI_DELTA; 75187df79e235c64f7062d0c50658fe1999b1225435Pierre Vandwalle else if (order < -MAX_RSSI_DELTA) order = -MAX_RSSI_DELTA; 7522451dbcc4f9641df188326215b204b798eb70c46vandwalle 7532451dbcc4f9641df188326215b204b798eb70c46vandwalle if (VDBG) { 7542451dbcc4f9641df188326215b204b798eb70c46vandwalle String prefer = " = "; 7552451dbcc4f9641df188326215b204b798eb70c46vandwalle if (order > 0) { 7562451dbcc4f9641df188326215b204b798eb70c46vandwalle prefer = " < "; // Ascending 7572451dbcc4f9641df188326215b204b798eb70c46vandwalle } else if (order < 0) { 7582451dbcc4f9641df188326215b204b798eb70c46vandwalle prefer = " > "; // Descending 7592451dbcc4f9641df188326215b204b798eb70c46vandwalle } 760b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" compareWifiConfigurationsRSSI " + a.configKey() 7612451dbcc4f9641df188326215b204b798eb70c46vandwalle + " rssi=(" + a.visibility.rssi24 7622451dbcc4f9641df188326215b204b798eb70c46vandwalle + "," + a.visibility.rssi5 7632451dbcc4f9641df188326215b204b798eb70c46vandwalle + ") num=(" + a.visibility.num24 7642451dbcc4f9641df188326215b204b798eb70c46vandwalle + "," + a.visibility.num5 + ")" 7652451dbcc4f9641df188326215b204b798eb70c46vandwalle + prefer + b.configKey() 7662451dbcc4f9641df188326215b204b798eb70c46vandwalle + " rssi=(" + b.visibility.rssi24 7672451dbcc4f9641df188326215b204b798eb70c46vandwalle + "," + b.visibility.rssi5 7682451dbcc4f9641df188326215b204b798eb70c46vandwalle + ") num=(" + b.visibility.num24 7692451dbcc4f9641df188326215b204b798eb70c46vandwalle + "," + b.visibility.num5 + ")" 7702451dbcc4f9641df188326215b204b798eb70c46vandwalle + " -> " + order); 7712451dbcc4f9641df188326215b204b798eb70c46vandwalle } 7722451dbcc4f9641df188326215b204b798eb70c46vandwalle 773f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle return order; 774f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 775f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 776833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle /** 777833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle * b/18490330 only use scorer for untrusted networks 778dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * <p/> 779dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * int compareWifiConfigurationsWithScorer(WifiConfiguration a, WifiConfiguration b) { 780dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * <p/> 781dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * boolean aIsActive = false; 782dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * boolean bIsActive = false; 783dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * <p/> 784dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * // Apply Hysteresis : boost RSSI of current configuration before 785dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * // looking up the score 786dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * if (null != mCurrentConfigurationKey) { 787dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * if (a.configKey().equals(mCurrentConfigurationKey)) { 788dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * aIsActive = true; 789dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * } else if (b.configKey().equals(mCurrentConfigurationKey)) { 790dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * bIsActive = true; 791dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * } 792dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * } 793dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * int scoreA = getConfigNetworkScore(a, mScanResultAutoJoinAge, aIsActive); 794dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * int scoreB = getConfigNetworkScore(b, mScanResultAutoJoinAge, bIsActive); 795dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * <p/> 796dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * // Both configurations need to have a score for the scorer to be used 797dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * // ...and the scores need to be different:-) 798dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * if (scoreA == WifiNetworkScoreCache.INVALID_NETWORK_SCORE 799dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * || scoreB == WifiNetworkScoreCache.INVALID_NETWORK_SCORE) { 800dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * if (VDBG) { 801dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * logDbg(" compareWifiConfigurationsWithScorer no-scores: " 802dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + a.configKey() 803dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + " " 804dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + b.configKey()); 805dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * } 806dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * return 0; 807dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * } 808dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * <p/> 809dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * if (VDBG) { 810dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * String prefer = " = "; 811dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * if (scoreA < scoreB) { 812dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * prefer = " < "; 813dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * } if (scoreA > scoreB) { 814dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * prefer = " > "; 815dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * } 816dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * logDbg(" compareWifiConfigurationsWithScorer " + a.configKey() 817dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + " rssi=(" + a.visibility.rssi24 818dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + "," + a.visibility.rssi5 819dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + ") num=(" + a.visibility.num24 820dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + "," + a.visibility.num5 + ")" 821dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + " sc=" + scoreA 822dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + prefer + b.configKey() 823dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + " rssi=(" + b.visibility.rssi24 824dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + "," + b.visibility.rssi5 825dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + ") num=(" + b.visibility.num24 826dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + "," + b.visibility.num5 + ")" 827dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + " sc=" + scoreB 828dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * + " -> " + Integer.toString(scoreB - scoreA)); 829dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * } 830dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * <p/> 831dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * // If scoreA > scoreB, the comparison is descending hence the return value is negative 832dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * return scoreB - scoreA; 833dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * } 834833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle */ 8352451dbcc4f9641df188326215b204b798eb70c46vandwalle 836d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande int getSecurityScore(WifiConfiguration config) { 837d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande 838d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande if (TextUtils.isEmpty(config.SSID) == false) { 839d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande if (config.allowedKeyManagement.get(KeyMgmt.WPA_EAP) 840d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande || config.allowedKeyManagement.get(KeyMgmt.WPA_PSK) 841d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande || config.allowedKeyManagement.get(KeyMgmt.WPA2_PSK)) { 842d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande /* enterprise or PSK networks get highest score */ 843d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande return 100; 844d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande } else if (config.allowedKeyManagement.get(KeyMgmt.NONE)) { 845d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande /* open networks have lowest score */ 846d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande return 33; 847d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande } 848d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande } else if (TextUtils.isEmpty(config.FQDN) == false) { 849d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande /* passpoint networks have medium preference */ 850d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande return 66; 851d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande } 852d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande 853d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande /* bad network */ 854d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande return 0; 855d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande } 856d3fb9cbb12d013dd70e672ace5c41ab18a3679a0Vinit Deshpande 857f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle int compareWifiConfigurations(WifiConfiguration a, WifiConfiguration b) { 858f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle int order = 0; 859f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle boolean linked = false; 860f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 861453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle if ((a.linkedConfigurations != null) && (b.linkedConfigurations != null) 862453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle && (a.autoJoinStatus == WifiConfiguration.AUTO_JOIN_ENABLED) 863453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle && (b.autoJoinStatus == WifiConfiguration.AUTO_JOIN_ENABLED)) { 8642451dbcc4f9641df188326215b204b798eb70c46vandwalle if ((a.linkedConfigurations.get(b.configKey(true)) != null) 8652451dbcc4f9641df188326215b204b798eb70c46vandwalle && (b.linkedConfigurations.get(a.configKey(true)) != null)) { 866f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle linked = true; 867f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 868f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 869f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 870f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (a.ephemeral && b.ephemeral == false) { 871f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (VDBG) { 872b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" compareWifiConfigurations ephemeral and prefers " + b.configKey() 873453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle + " over " + a.configKey()); 874f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 875931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle return 1; // b is of higher priority - ascending 876f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 877f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (b.ephemeral && a.ephemeral == false) { 878f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (VDBG) { 879b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" compareWifiConfigurations ephemeral and prefers " + a.configKey() 880453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle + " over " + b.configKey()); 881f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 882931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle return -1; // a is of higher priority - descending 883f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 884f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 8852451dbcc4f9641df188326215b204b798eb70c46vandwalle // Apply RSSI, in the range [-5, +5] 8862451dbcc4f9641df188326215b204b798eb70c46vandwalle // after band adjustment, +n difference roughly corresponds to +10xn dBm 8872451dbcc4f9641df188326215b204b798eb70c46vandwalle order = order + compareWifiConfigurationsRSSI(a, b, mCurrentConfigurationKey); 888f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 8892451dbcc4f9641df188326215b204b798eb70c46vandwalle // If the configurations are not linked, compare by user's choice, only a 8902451dbcc4f9641df188326215b204b798eb70c46vandwalle // very high RSSI difference can then override the choice 8912451dbcc4f9641df188326215b204b798eb70c46vandwalle if (!linked) { 8922451dbcc4f9641df188326215b204b798eb70c46vandwalle int choice; 893f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 8942451dbcc4f9641df188326215b204b798eb70c46vandwalle choice = getConnectChoice(a, b); 8952451dbcc4f9641df188326215b204b798eb70c46vandwalle if (choice > 0) { 896931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // a is of higher priority - descending 8972451dbcc4f9641df188326215b204b798eb70c46vandwalle order = order - choice; 898f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (VDBG) { 899b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" compareWifiConfigurations prefers " + a.configKey() 900453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle + " over " + b.configKey() 901b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + " due to user choice of " + choice 902b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + " order -> " + Integer.toString(order)); 903f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 904f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle if (a.visibility != null) { 905f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle a.visibility.lastChoiceBoost = choice; 906f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle a.visibility.lastChoiceConfig = b.configKey(); 907f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle } 9082451dbcc4f9641df188326215b204b798eb70c46vandwalle } 9092451dbcc4f9641df188326215b204b798eb70c46vandwalle 9102451dbcc4f9641df188326215b204b798eb70c46vandwalle choice = getConnectChoice(b, a); 9112451dbcc4f9641df188326215b204b798eb70c46vandwalle if (choice > 0) { 912931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // a is of lower priority - ascending 9132451dbcc4f9641df188326215b204b798eb70c46vandwalle order = order + choice; 9144dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle if (VDBG) { 915b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" compareWifiConfigurations prefers " + b.configKey() + " over " 916b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + a.configKey() + " due to user choice of " + choice 917b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + " order ->" + Integer.toString(order)); 918f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 919f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle if (b.visibility != null) { 920f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle b.visibility.lastChoiceBoost = choice; 921f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle b.visibility.lastChoiceConfig = a.configKey(); 922f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle } 923f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 924f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 925ede1310be531a84faa08f02c3fd243448dd936ddvandwalle 926f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (order == 0) { 927931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // We don't know anything - pick the last seen i.e. K behavior 928931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // we should do this only for recently picked configurations 929f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (a.priority > b.priority) { 930931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // a is of higher priority - descending 9312451dbcc4f9641df188326215b204b798eb70c46vandwalle if (VDBG) { 932b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" compareWifiConfigurations prefers -1 " + a.configKey() + " over " 933453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle + b.configKey() + " due to priority"); 934f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 935f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 936f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle order = -1; 937f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } else if (a.priority < b.priority) { 938931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // a is of lower priority - ascending 9392451dbcc4f9641df188326215b204b798eb70c46vandwalle if (VDBG) { 940b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" compareWifiConfigurations prefers +1 " + b.configKey() + " over " 941453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle + a.configKey() + " due to priority"); 942f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 9432451dbcc4f9641df188326215b204b798eb70c46vandwalle order = 1; 944f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 945f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 946f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 947f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle String sorder = " == "; 948931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle if (order > 0) { 949f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle sorder = " < "; 950931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle } else if (order < 0) { 951f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle sorder = " > "; 952931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle } 953f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 9542451dbcc4f9641df188326215b204b798eb70c46vandwalle if (VDBG) { 955b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg("compareWifiConfigurations: " + a.configKey() + sorder 956453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle + b.configKey() + " order " + Integer.toString(order)); 957f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 958f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 959f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle return order; 960f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 961f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 962c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle boolean isBadCandidate(int rssi5, int rssi24) { 963c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle return (rssi5 < -80 && rssi24 < -90); 964c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle } 965c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle 966833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle /* 967c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle int compareWifiConfigurationsTop(WifiConfiguration a, WifiConfiguration b) { 968c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle int scorerOrder = compareWifiConfigurationsWithScorer(a, b); 969c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle int order = compareWifiConfigurations(a, b); 970c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle 971c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle if (scorerOrder * order < 0) { 972b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle if (VDBG) { 973b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" -> compareWifiConfigurationsTop: " + 974b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle "scorer override " + scorerOrder + " " + order); 975b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle } 976c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle // For debugging purpose, remember that an override happened 977c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle // during that autojoin Attempt 978c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle didOverride = true; 979c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle a.numScorerOverride++; 980c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle b.numScorerOverride++; 981c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle } 982c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle 983c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle if (scorerOrder != 0) { 984c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle // If the scorer came up with a result then use the scorer's result, else use 985c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle // the order provided by the base comparison function 986c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle order = scorerOrder; 987c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle } 988c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle return order; 989c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle } 990833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle */ 991c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle 9929f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle public int rssiBoostFrom5GHzRssi(int rssi, String dbg) { 9930eebae7334d6129f7ca1344e4b20199794994358vandwalle if (!mWifiConfigStore.enable5GHzPreference) { 9940eebae7334d6129f7ca1344e4b20199794994358vandwalle return 0; 9950eebae7334d6129f7ca1344e4b20199794994358vandwalle } 996e67ec726c07410073575473c0f50dc737629f5davandwalle if (rssi 99777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist > mWifiConfigStore.bandPreferenceBoostThreshold5.get()) { 998e67ec726c07410073575473c0f50dc737629f5davandwalle // Boost by 2 dB for each point 999e67ec726c07410073575473c0f50dc737629f5davandwalle // Start boosting at -65 1000e67ec726c07410073575473c0f50dc737629f5davandwalle // Boost by 20 if above -55 1001e67ec726c07410073575473c0f50dc737629f5davandwalle // Boost by 40 if abore -45 10020eebae7334d6129f7ca1344e4b20199794994358vandwalle int boost = mWifiConfigStore.bandPreferenceBoostFactor5 1003dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * (rssi - mWifiConfigStore.bandPreferenceBoostThreshold5.get()); 1004e67ec726c07410073575473c0f50dc737629f5davandwalle if (boost > 50) { 1005815788ba7838fc54310baed3deb9b95548e0ce69vandwalle // 50 dB boost allows jumping from 2.4 to 5GHz 1006e67ec726c07410073575473c0f50dc737629f5davandwalle // consistently 1007e67ec726c07410073575473c0f50dc737629f5davandwalle boost = 50; 1008e67ec726c07410073575473c0f50dc737629f5davandwalle } 10099f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle if (VDBG && dbg != null) { 1010f57f8918b8c5872ff4bb141fa9e407bec8442e8dvandwalle logDbg(" " + dbg + ": rssi5 " + rssi + " 5GHz-boost " + boost); 10119f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle } 1012e67ec726c07410073575473c0f50dc737629f5davandwalle return boost; 1013e67ec726c07410073575473c0f50dc737629f5davandwalle } 1014e67ec726c07410073575473c0f50dc737629f5davandwalle 1015e67ec726c07410073575473c0f50dc737629f5davandwalle if (rssi 101677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist < mWifiConfigStore.bandPreferencePenaltyThreshold5.get()) { 10170eebae7334d6129f7ca1344e4b20199794994358vandwalle // penalize if < -75 10180eebae7334d6129f7ca1344e4b20199794994358vandwalle int boost = mWifiConfigStore.bandPreferencePenaltyFactor5 1019dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * (rssi - mWifiConfigStore.bandPreferencePenaltyThreshold5.get()); 10200eebae7334d6129f7ca1344e4b20199794994358vandwalle return boost; 1021e67ec726c07410073575473c0f50dc737629f5davandwalle } 1022e67ec726c07410073575473c0f50dc737629f5davandwalle return 0; 1023e67ec726c07410073575473c0f50dc737629f5davandwalle } 1024dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle 1025dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle /** 1026dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * attemptRoam() function implements the core of the same SSID switching algorithm 1027dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * <p/> 1028dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * Run thru all recent scan result of a WifiConfiguration and select the 1029dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * best one. 1030dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle */ 1031e67ec726c07410073575473c0f50dc737629f5davandwalle public ScanResult attemptRoam(ScanResult a, 1032e67ec726c07410073575473c0f50dc737629f5davandwalle WifiConfiguration current, int age, String currentBSSID) { 1033b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle if (current == null) { 1034dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 1035b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle logDbg("attemptRoam not associated"); 1036b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } 1037e67ec726c07410073575473c0f50dc737629f5davandwalle return a; 10384dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 103925ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande 10404d381bc39f5263effdae73ec99065eb299b806caVinit Deshpande ScanDetailCache scanDetailCache = 104125ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande mWifiConfigStore.getScanDetailCache(current); 104225ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande 104325ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande if (scanDetailCache == null) { 1044dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 1045b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle logDbg("attemptRoam no scan cache"); 1046b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } 1047e67ec726c07410073575473c0f50dc737629f5davandwalle return a; 10484dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 104925ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande if (scanDetailCache.size() > 6) { 1050dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 1051c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle logDbg("attemptRoam scan cache size " 105225ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande + scanDetailCache.size() + " --> bail"); 1053b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } 1054931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Implement same SSID roaming only for configurations 1055c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle // that have less than 4 BSSIDs 1056e67ec726c07410073575473c0f50dc737629f5davandwalle return a; 10574dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 1058b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle 10592f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle if (current.BSSID != null && !current.BSSID.equals("any")) { 1060dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (DBG) { 10612f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle logDbg("attemptRoam() BSSID is set " 10622f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle + current.BSSID + " -> bail"); 1063b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } 1064e67ec726c07410073575473c0f50dc737629f5davandwalle return a; 10654dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 10664dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 1067931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Determine which BSSID we want to associate to, taking account 1068c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle // relative strength of 5 and 2.4 GHz BSSIDs 10692451dbcc4f9641df188326215b204b798eb70c46vandwalle long nowMs = System.currentTimeMillis(); 10704dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 107125ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande for (ScanDetail sd : scanDetailCache.values()) { 107225ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande ScanResult b = sd.getScanResult(); 107397b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle int bRssiBoost5 = 0; 107497b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle int aRssiBoost5 = 0; 107597b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle int bRssiBoost = 0; 107697b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle int aRssiBoost = 0; 107725ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande if ((sd.getSeen() == 0) || (b.BSSID == null) 107825ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande || ((nowMs - sd.getSeen()) > age) 1079e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle || b.autoJoinStatus != ScanResult.ENABLED 1080e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle || b.numIpConfigFailures > 8) { 10814dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle continue; 10823a2a3d226881cce8a4e511302231d843b0def303vandwalle } 10834dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 1084931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Pick first one 10854dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle if (a == null) { 10864dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle a = b; 10874dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle continue; 10884dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 10894dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 1090e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle if (b.numIpConfigFailures < (a.numIpConfigFailures - 1)) { 1091e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle // Prefer a BSSID that doesn't have less number of Ip config failures 1092e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle logDbg("attemptRoam: " 1093dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + b.BSSID + " rssi=" + b.level + " ipfail=" + b.numIpConfigFailures 1094e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + " freq=" + b.frequency 1095e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + " > " 1096dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + a.BSSID + " rssi=" + a.level + " ipfail=" + a.numIpConfigFailures 1097e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + " freq=" + a.frequency); 1098e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle a = b; 1099e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle continue; 1100e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle } 1101e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle 11022451dbcc4f9641df188326215b204b798eb70c46vandwalle // Apply hysteresis: we favor the currentBSSID by giving it a boost 11037806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle if (currentBSSID != null && currentBSSID.equals(b.BSSID)) { 1104931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Reduce the benefit of hysteresis if RSSI <= -75 110577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (b.level <= mWifiConfigStore.bandPreferencePenaltyThreshold5.get()) { 11060eebae7334d6129f7ca1344e4b20199794994358vandwalle bRssiBoost = mWifiConfigStore.associatedHysteresisLow; 1107c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle } else { 11080eebae7334d6129f7ca1344e4b20199794994358vandwalle bRssiBoost = mWifiConfigStore.associatedHysteresisHigh; 1109c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle } 11104dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 11117806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle if (currentBSSID != null && currentBSSID.equals(a.BSSID)) { 111277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (a.level <= mWifiConfigStore.bandPreferencePenaltyThreshold5.get()) { 1113931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Reduce the benefit of hysteresis if RSSI <= -75 11140eebae7334d6129f7ca1344e4b20199794994358vandwalle aRssiBoost = mWifiConfigStore.associatedHysteresisLow; 1115c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle } else { 11160eebae7334d6129f7ca1344e4b20199794994358vandwalle aRssiBoost = mWifiConfigStore.associatedHysteresisHigh; 1117c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle } 11184dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 11192451dbcc4f9641df188326215b204b798eb70c46vandwalle 112097b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle // Favor 5GHz: give a boost to 5GHz BSSIDs, with a slightly progressive curve 11212451dbcc4f9641df188326215b204b798eb70c46vandwalle // Boost the BSSID if it is on 5GHz, above a threshold 11222451dbcc4f9641df188326215b204b798eb70c46vandwalle // But penalize it if it is on 5GHz and below threshold 112397b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle // 112497b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle // With he current threshold values, 5GHz network with RSSI above -55 112597b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle // Are given a boost of 30DB which is enough to overcome the current BSSID 112697b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle // hysteresis (+14) plus 2.4/5 GHz signal strength difference on most cases 11279f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle // 11289f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle // The "current BSSID" Boost must be added to the BSSID's level so as to introduce\ 11299f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle // soem amount of hysteresis 1130e67ec726c07410073575473c0f50dc737629f5davandwalle if (b.is5GHz()) { 11319f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle bRssiBoost5 = rssiBoostFrom5GHzRssi(b.level + bRssiBoost, b.BSSID); 11324dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 1133e67ec726c07410073575473c0f50dc737629f5davandwalle if (a.is5GHz()) { 11349f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle aRssiBoost5 = rssiBoostFrom5GHzRssi(a.level + aRssiBoost, a.BSSID); 11354dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 11364dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 1137dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 1138c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle String comp = " < "; 1139dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (b.level + bRssiBoost + bRssiBoost5 > a.level + aRssiBoost + aRssiBoost5) { 1140c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle comp = " > "; 1141c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle } 11424dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle logDbg("attemptRoam: " 1143c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle + b.BSSID + " rssi=" + b.level + " boost=" + Integer.toString(bRssiBoost) 114497b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle + "/" + Integer.toString(bRssiBoost5) + " freq=" + b.frequency 114597b9c4fef6e372d1f19b333c7a67ff27ef80baf0vandwalle + comp 1146c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle + a.BSSID + " rssi=" + a.level + " boost=" + Integer.toString(aRssiBoost) 1147c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle + "/" + Integer.toString(aRssiBoost5) + " freq=" + a.frequency); 1148c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle } 1149c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle 11502451dbcc4f9641df188326215b204b798eb70c46vandwalle // Compare the RSSIs after applying the hysteresis boost and the 5GHz 11512451dbcc4f9641df188326215b204b798eb70c46vandwalle // boost if applicable 1152dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (b.level + bRssiBoost + bRssiBoost5 > a.level + aRssiBoost + aRssiBoost5) { 1153931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // b is the better BSSID 1154c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle a = b; 11554dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 11564dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 11573a2a3d226881cce8a4e511302231d843b0def303vandwalle if (a != null) { 1158dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 11597806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle StringBuilder sb = new StringBuilder(); 1160e67ec726c07410073575473c0f50dc737629f5davandwalle sb.append("attemptRoam: " + current.configKey() + 1161e67ec726c07410073575473c0f50dc737629f5davandwalle " Found " + a.BSSID + " rssi=" + a.level + " freq=" + a.frequency); 11627806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle if (currentBSSID != null) { 11637806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle sb.append(" Current: " + currentBSSID); 11647806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle } 11657806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle sb.append("\n"); 11667806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle logDbg(sb.toString()); 11673a2a3d226881cce8a4e511302231d843b0def303vandwalle } 11684dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 11693a2a3d226881cce8a4e511302231d843b0def303vandwalle return a; 11704dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 11714dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 1172931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle /** 11732451dbcc4f9641df188326215b204b798eb70c46vandwalle * getNetworkScore() 1174dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * <p/> 11752451dbcc4f9641df188326215b204b798eb70c46vandwalle * if scorer is present, get the network score of a WifiConfiguration 1176dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * <p/> 11772451dbcc4f9641df188326215b204b798eb70c46vandwalle * Note: this should be merge with setVisibility 11782451dbcc4f9641df188326215b204b798eb70c46vandwalle * 11792451dbcc4f9641df188326215b204b798eb70c46vandwalle * @param config 11802451dbcc4f9641df188326215b204b798eb70c46vandwalle * @return score 11812451dbcc4f9641df188326215b204b798eb70c46vandwalle */ 118281c9ea6c343bc7f8d87095237e59844a974d0b70Jeff Davidson int getConfigNetworkScore(WifiConfiguration config, int age, boolean isActive) { 11832451dbcc4f9641df188326215b204b798eb70c46vandwalle 11842451dbcc4f9641df188326215b204b798eb70c46vandwalle if (mNetworkScoreCache == null) { 1185e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle if (VDBG) { 1186b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" getConfigNetworkScore for " + config.configKey() 1187e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle + " -> no scorer, hence no scores"); 1188e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle } 11891db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle return WifiNetworkScoreCache.INVALID_NETWORK_SCORE; 11901db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle } 119125ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande 119225ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande if (mWifiConfigStore.getScanDetailCache(config) == null) { 1193e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle if (VDBG) { 1194b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" getConfigNetworkScore for " + config.configKey() 1195e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle + " -> no scan cache"); 1196e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle } 11971db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle return WifiNetworkScoreCache.INVALID_NETWORK_SCORE; 11982451dbcc4f9641df188326215b204b798eb70c46vandwalle } 11992451dbcc4f9641df188326215b204b798eb70c46vandwalle 12002451dbcc4f9641df188326215b204b798eb70c46vandwalle // Get current date 12012451dbcc4f9641df188326215b204b798eb70c46vandwalle long nowMs = System.currentTimeMillis(); 12022451dbcc4f9641df188326215b204b798eb70c46vandwalle 12031db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle int startScore = -10000; 12041db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle 12052451dbcc4f9641df188326215b204b798eb70c46vandwalle // Run thru all cached scan results 120625ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande for (ScanDetail sd : mWifiConfigStore.getScanDetailCache(config).values()) { 120725ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande ScanResult result = sd.getScanResult(); 120825ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande if ((nowMs - sd.getSeen()) < age) { 120981c9ea6c343bc7f8d87095237e59844a974d0b70Jeff Davidson int sc = mNetworkScoreCache.getNetworkScore(result, isActive); 12101db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle if (sc > startScore) { 12111db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle startScore = sc; 12122451dbcc4f9641df188326215b204b798eb70c46vandwalle } 12132451dbcc4f9641df188326215b204b798eb70c46vandwalle } 12142451dbcc4f9641df188326215b204b798eb70c46vandwalle } 12151db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle if (startScore == -10000) { 12161db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle startScore = WifiNetworkScoreCache.INVALID_NETWORK_SCORE; 12171db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle } 1218e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle if (VDBG) { 1219e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle if (startScore == WifiNetworkScoreCache.INVALID_NETWORK_SCORE) { 1220b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" getConfigNetworkScore for " + config.configKey() 1221e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle + " -> no available score"); 1222e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle } else { 1223b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg(" getConfigNetworkScore for " + config.configKey() 122481c9ea6c343bc7f8d87095237e59844a974d0b70Jeff Davidson + " isActive=" + isActive 1225e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle + " score = " + Integer.toString(startScore)); 1226e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle } 1227e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle } 1228e6574ec7b6b2e7a678da7f77bdaaf31463852b2fvandwalle 12291db63db890fcb9051f402fdfd449eb0b80e2053cvandwalle return startScore; 12302451dbcc4f9641df188326215b204b798eb70c46vandwalle } 12312451dbcc4f9641df188326215b204b798eb70c46vandwalle 12322451dbcc4f9641df188326215b204b798eb70c46vandwalle /** 12338639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson * Set whether connections to untrusted connections are allowed. 12348639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson */ 12358639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson void setAllowUntrustedConnections(boolean allow) { 12368639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson boolean changed = mAllowUntrustedConnections != allow; 12378639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson mAllowUntrustedConnections = allow; 12388639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson if (changed) { 1239005c1ef113192f898499a407dd266393a8d6b076vandwalle // Trigger a scan so as to reattempt autojoin 1240005c1ef113192f898499a407dd266393a8d6b076vandwalle mWifiStateMachine.startScanForUntrustedSettingChange(); 12418639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson } 12428639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson } 12438639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson 12448639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson private boolean isOpenNetwork(ScanResult result) { 12458639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson return !result.capabilities.contains("WEP") && 12468639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson !result.capabilities.contains("PSK") && 12478639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson !result.capabilities.contains("EAP"); 12488639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson } 12498639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson 125016fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson private boolean haveRecentlySeenScoredBssid(WifiConfiguration config) { 125116fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson long ephemeralOutOfRangeTimeoutMs = Settings.Global.getLong( 125216fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson mContext.getContentResolver(), 125316fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson Settings.Global.WIFI_EPHEMERAL_OUT_OF_RANGE_TIMEOUT_MS, 125416fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson DEFAULT_EPHEMERAL_OUT_OF_RANGE_TIMEOUT_MS); 125516fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson 125616fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson // Check whether the currently selected network has a score curve. If 125716fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson // ephemeralOutOfRangeTimeoutMs is <= 0, then this is all we check, and we stop here. 125816fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson // Otherwise, we stop here if the currently selected network has a score. If it doesn't, we 125916fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson // keep going - it could be that another BSSID is in range (has been seen recently) which 126016fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson // has a score, even if the one we're immediately connected to doesn't. 1261dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle ScanResult currentScanResult = mWifiStateMachine.getCurrentScanResult(); 126216fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson boolean currentNetworkHasScoreCurve = mNetworkScoreCache.hasScoreCurve(currentScanResult); 126316fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson if (ephemeralOutOfRangeTimeoutMs <= 0 || currentNetworkHasScoreCurve) { 126416fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson if (DBG) { 126516fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson if (currentNetworkHasScoreCurve) { 126616fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson logDbg("Current network has a score curve, keeping network: " 126716fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson + currentScanResult); 126816fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } else { 126916fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson logDbg("Current network has no score curve, giving up: " + config.SSID); 127016fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } 127116fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } 127216fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson return currentNetworkHasScoreCurve; 127316fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } 127416fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson 127525ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande if (mWifiConfigStore.getScanDetailCache(config) == null 127625ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande || mWifiConfigStore.getScanDetailCache(config).isEmpty()) { 127716fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson return false; 127816fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } 127916fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson 128016fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson long currentTimeMs = System.currentTimeMillis(); 128125ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande for (ScanDetail sd : mWifiConfigStore.getScanDetailCache(config).values()) { 128225ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande ScanResult result = sd.getScanResult(); 128325ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande if (currentTimeMs > sd.getSeen() 128425ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande && currentTimeMs - sd.getSeen() < ephemeralOutOfRangeTimeoutMs 128516fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson && mNetworkScoreCache.hasScoreCurve(result)) { 128616fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson if (DBG) { 128716fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson logDbg("Found scored BSSID, keeping network: " + result.BSSID); 128816fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } 128916fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson return true; 129016fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } 129116fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } 129216fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson 129316fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson if (DBG) { 129416fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson logDbg("No recently scored BSSID found, giving up connection: " + config.SSID); 129516fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } 129616fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson return false; 129716fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson } 129816fdf07021858fd116d96a5fb00ddb3c166d5ae6Jeff Davidson 129977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // After WifiStateMachine ask the supplicant to associate or reconnect 130077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // we might still obtain scan results from supplicant 130177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // however the supplicant state in the mWifiInfo and supplicant state tracker 130277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // are updated when we get the supplicant state change message which can be 130377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // processed after the SCAN_RESULT message, so at this point the framework doesn't 130477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // know that supplicant is ASSOCIATING. 130577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // A good fix for this race condition would be for the WifiStateMachine to add 130677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // a new transient state where it expects to get the supplicant message indicating 130777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // that it started the association process and within which critical operations 130877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // like autojoin should be deleted. 130977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 131077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // This transient state would remove the need for the roam Wathchdog which 131177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // basically does that. 131277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 131377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // At the moment, we just query the supplicant state synchronously with the 131477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // mWifiNative.status() command, which allow us to know that 131577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // supplicant has started association process, even though we didnt yet get the 131677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // SUPPLICANT_STATE_CHANGE message. 131777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 131877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist private static final List<String> ASSOC_STATES = Arrays.asList( 131977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist "ASSOCIATING", 132077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist "ASSOCIATED", 132177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist "FOUR_WAY_HANDSHAKE", 132277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist "GROUP_KEY_HANDSHAKE"); 132377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 132477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist private int getNetID(String wpaStatus) { 132577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (VDBG) { 132677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist logDbg("attemptAutoJoin() status=" + wpaStatus); 132777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 132877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 132977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist try { 133077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist int id = WifiConfiguration.INVALID_NETWORK_ID; 133177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist String state = null; 133277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist BufferedReader br = new BufferedReader(new StringReader(wpaStatus)); 133377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist String line; 1334dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle while ((line = br.readLine()) != null) { 133577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist int split = line.indexOf('='); 133677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (split < 0) { 133777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist continue; 133877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 133977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 134077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist String name = line.substring(0, split); 134177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (name.equals("id")) { 134277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist try { 1343dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle id = Integer.parseInt(line.substring(split + 1)); 134477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (state != null) { 134577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist break; 134677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 1347dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } catch (NumberFormatException nfe) { 134877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist Log.d("HS2J", "NFE on '" + line + "'"); 134977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return WifiConfiguration.INVALID_NETWORK_ID; 135077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 1351dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } else if (name.equals("wpa_state")) { 1352dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle state = line.substring(split + 1); 135377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist Log.d("HS2J", "State: '" + line + "'"); 135477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (ASSOC_STATES.contains(state)) { 135577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return WifiConfiguration.INVALID_NETWORK_ID; 1356dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } else if (id >= 0) { 135777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist break; 135877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 135977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 136077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 136177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return id; 1362dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } catch (IOException ioe) { 136377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return WifiConfiguration.INVALID_NETWORK_ID; // Won't happen 136477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 136577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 136677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 136777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist private boolean setCurrentConfigurationKey(WifiConfiguration currentConfig, 136877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist int supplicantNetId) { 136977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (currentConfig != null) { 137077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (supplicantNetId != currentConfig.networkId 137177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // https://b.corp.google.com/issue?id=16484607 137277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // mark this condition as an error only if the mismatched networkId are valid 137377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist && supplicantNetId != WifiConfiguration.INVALID_NETWORK_ID 137477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist && currentConfig.networkId != WifiConfiguration.INVALID_NETWORK_ID) { 137577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist logDbg("attemptAutoJoin() ERROR wpa_supplicant out of sync nid=" 137677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist + Integer.toString(supplicantNetId) + " WifiStateMachine=" 137777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist + Integer.toString(currentConfig.networkId)); 137877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist mWifiStateMachine.disconnectCommand(); 137977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return false; 138077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } else if (currentConfig.ephemeral && (!mAllowUntrustedConnections || 138177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist !haveRecentlySeenScoredBssid(currentConfig))) { 138277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // The current connection is untrusted (the framework added it), but we're either 138377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // no longer allowed to connect to such networks, the score has been nullified 138477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // since we connected, or the scored BSSID has gone out of range. 138577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // Drop the current connection and perform the rest of autojoin. 138677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist logDbg("attemptAutoJoin() disconnecting from unwanted ephemeral network"); 138777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist mWifiStateMachine.disconnectCommand(Process.WIFI_UID, 138877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist mAllowUntrustedConnections ? 1 : 0); 138977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return false; 139077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } else { 139177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist mCurrentConfigurationKey = currentConfig.configKey(); 139277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return true; 139377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 139477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } else { 139577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // If not invalid, then maybe in the process of associating, skip this attempt 139677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return supplicantNetId == WifiConfiguration.INVALID_NETWORK_ID; 139777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 139877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 139977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 140077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist private void updateBlackListStatus(WifiConfiguration config, long now) { 140177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // Wait for 5 minutes before reenabling config that have known, 140277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // repeated connection or DHCP failures 140377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (config.disableReason == WifiConfiguration.DISABLED_DHCP_FAILURE 140477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist || config.disableReason 140577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist == WifiConfiguration.DISABLED_ASSOCIATION_REJECT 140677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist || config.disableReason 140777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist == WifiConfiguration.DISABLED_AUTH_FAILURE) { 140877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (config.blackListTimestamp == 0 140977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist || (config.blackListTimestamp > now)) { 141077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // Sanitize the timestamp 141177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist config.blackListTimestamp = now; 141277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 141377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if ((now - config.blackListTimestamp) > 141477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist mWifiConfigStore.wifiConfigBlacklistMinTimeMilli) { 141577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // Re-enable the WifiConfiguration 141677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist config.status = WifiConfiguration.Status.ENABLED; 141777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 141877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // Reset the blacklist condition 141977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist config.numConnectionFailures = 0; 142077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist config.numIpConfigFailures = 0; 142177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist config.numAuthFailures = 0; 142277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist config.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_ENABLED); 142377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 142477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist config.dirty = true; 142577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } else { 142677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (VDBG) { 142777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist long delay = mWifiConfigStore.wifiConfigBlacklistMinTimeMilli 142877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist - (now - config.blackListTimestamp); 142977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist logDbg("attemptautoJoin " + config.configKey() 143077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist + " dont unblacklist yet, waiting for " 143177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist + delay + " ms"); 143277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 143377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 143477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 143577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist // Avoid networks disabled because of AUTH failure altogether 143677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (DBG) { 143777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist logDbg("attemptAutoJoin skip candidate due to auto join status " 143877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist + Integer.toString(config.autoJoinStatus) + " key " 143977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist + config.configKey(true) 144077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist + " reason " + config.disableReason); 144177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 144277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 1443dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle 144477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist boolean underSoftThreshold(WifiConfiguration config) { 144577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return config.visibility.rssi24 < mWifiConfigStore.thresholdUnblacklistThreshold24Soft.get() 1446dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle && config.visibility.rssi5 < mWifiConfigStore.thresholdUnblacklistThreshold5Soft.get(); 144777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 144877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 144977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist boolean underHardThreshold(WifiConfiguration config) { 145077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return config.visibility.rssi24 < mWifiConfigStore.thresholdUnblacklistThreshold24Hard.get() 1451dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle && config.visibility.rssi5 < mWifiConfigStore.thresholdUnblacklistThreshold5Hard.get(); 145277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 145377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 145477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist boolean underThreshold(WifiConfiguration config, int rssi24, int rssi5) { 145577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return config.visibility.rssi24 < rssi24 && config.visibility.rssi5 < rssi5; 145677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 145777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 14588639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson /** 1459931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * attemptAutoJoin() function implements the core of the a network switching algorithm 146068fee36dac1dda5c596c00ef33fdbc0962e9ec9fvandwalle * Return false if no acceptable networks were found. 1461931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle */ 146268fee36dac1dda5c596c00ef33fdbc0962e9ec9fvandwalle boolean attemptAutoJoin() { 146368fee36dac1dda5c596c00ef33fdbc0962e9ec9fvandwalle boolean found = false; 1464c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle didOverride = false; 14651ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle didBailDueToWeakRssi = false; 1466b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle int networkSwitchType = AUTO_JOIN_IDLE; 14674dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 14688242cc81341c80ab5bc057ffdad99a3a1d95be5cvandwalle long now = System.currentTimeMillis(); 14698242cc81341c80ab5bc057ffdad99a3a1d95be5cvandwalle 14708c9088d11880553458f09377cc60d6eb7e66747bvandwalle String lastSelectedConfiguration = mWifiConfigStore.getLastSelectedConfiguration(); 14718c9088d11880553458f09377cc60d6eb7e66747bvandwalle 1472931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Reset the currentConfiguration Key, and set it only if WifiStateMachine and 1473453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle // supplicant agree 1474453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle mCurrentConfigurationKey = null; 1475453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle WifiConfiguration currentConfiguration = mWifiStateMachine.getCurrentWifiConfiguration(); 1476453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle 1477f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle WifiConfiguration candidate = null; 1478f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 1479931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Obtain the subset of recently seen networks 1480833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle List<WifiConfiguration> list = 1481833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle mWifiConfigStore.getRecentConfiguredNetworks(mScanResultAutoJoinAge, false); 1482f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (list == null) { 1483dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) logDbg("attemptAutoJoin nothing known=" + 148425ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande mWifiConfigStore.getConfiguredNetworkSize()); 148568fee36dac1dda5c596c00ef33fdbc0962e9ec9fvandwalle return false; 1486f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1487f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 1488931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Find the currently connected network: ask the supplicant directly 148977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 149077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist int supplicantNetId = getNetID(mWifiNative.status(true)); 149177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 1492ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle if (DBG) { 14937806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle String conf = ""; 1494b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle String last = ""; 14957806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle if (currentConfiguration != null) { 1496e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle conf = " current=" + currentConfiguration.configKey(); 1497b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle } 1498b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle if (lastSelectedConfiguration != null) { 14992f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle last = " last=" + lastSelectedConfiguration; 15007806f8c800754da0f76d7a0c1a6a590381dac7a8vandwalle } 1501ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle logDbg("attemptAutoJoin() num recent config " + Integer.toString(list.size()) 1502b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + conf + last 1503b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + " ---> suppNetId=" + Integer.toString(supplicantNetId)); 1504ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle } 1505f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 150677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (!setCurrentConfigurationKey(currentConfiguration, supplicantNetId)) { 150777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return false; 1508453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle } 1509453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle 1510b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle int currentNetId = -1; 1511b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle if (currentConfiguration != null) { 1512931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // If we are associated to a configuration, it will 1513b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle // be compared thru the compareNetwork function 1514b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle currentNetId = currentConfiguration.networkId; 1515b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle } 1516b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle 1517931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle /** 1518931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * Run thru all visible configurations without looking at the one we 1519c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle * are currently associated to 15204dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle * select Best Network candidate from known WifiConfigurations 1521931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle */ 1522f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle for (WifiConfiguration config : list) { 1523e86c962bb99a8b126ed64ddcc6b112161549e26dvandwalle if (config.SSID == null) { 1524b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle continue; 1525e86c962bb99a8b126ed64ddcc6b112161549e26dvandwalle } 1526e86c962bb99a8b126ed64ddcc6b112161549e26dvandwalle 152777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (config.autoJoinStatus >= WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE) { 152877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist updateBlackListStatus(config, now); 1529f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle continue; 1530f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1531f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 1532931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Try to un-blacklist based on elapsed time 153327355a942653264388e909a4276196ee63e57811vandwalle if (config.blackListTimestamp > 0) { 153427355a942653264388e909a4276196ee63e57811vandwalle if (now < config.blackListTimestamp) { 1535931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle /** 1536931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * looks like there was a change in the system clock since we black listed, and 1537931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * timestamp is not meaningful anymore, hence lose it. 1538931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * this event should be rare enough so that we still want to lose the black list 15392451dbcc4f9641df188326215b204b798eb70c46vandwalle */ 154027355a942653264388e909a4276196ee63e57811vandwalle config.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_ENABLED); 154127355a942653264388e909a4276196ee63e57811vandwalle } else { 15424dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle if ((now - config.blackListTimestamp) > loseBlackListHardMilli) { 1543931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Reenable it after 18 hours, i.e. next day 154427355a942653264388e909a4276196ee63e57811vandwalle config.setAutoJoinStatus(WifiConfiguration.AUTO_JOIN_ENABLED); 15454dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } else if ((now - config.blackListTimestamp) > loseBlackListSoftMilli) { 1546931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Lose blacklisting due to bad link 154727355a942653264388e909a4276196ee63e57811vandwalle config.setAutoJoinStatus(config.autoJoinStatus - 8); 154827355a942653264388e909a4276196ee63e57811vandwalle } 154927355a942653264388e909a4276196ee63e57811vandwalle } 155027355a942653264388e909a4276196ee63e57811vandwalle } 155127355a942653264388e909a4276196ee63e57811vandwalle 155277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (config.visibility == null) { 155377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist continue; 155477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 155577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 1556931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Try to unblacklist based on good visibility 155777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (underSoftThreshold(config)) { 155877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist logDenial("attemptAutoJoin do not unblacklist due to low visibility ", config); 155977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } else if (underHardThreshold(config)) { 1560931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // If the network is simply temporary disabled, don't allow reconnect until 1561931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // RSSI becomes good enough 156227355a942653264388e909a4276196ee63e57811vandwalle config.setAutoJoinStatus(config.autoJoinStatus - 1); 156377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist logDenial("attemptAutoJoin good candidate seen, bumped soft -> status=", config); 156427355a942653264388e909a4276196ee63e57811vandwalle } else { 1565c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle config.setAutoJoinStatus(config.autoJoinStatus - 3); 156677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist logDenial("attemptAutoJoin good candidate seen, bumped hard -> status=", config); 156727355a942653264388e909a4276196ee63e57811vandwalle } 156827355a942653264388e909a4276196ee63e57811vandwalle 156927355a942653264388e909a4276196ee63e57811vandwalle if (config.autoJoinStatus >= 157027355a942653264388e909a4276196ee63e57811vandwalle WifiConfiguration.AUTO_JOIN_TEMPORARY_DISABLED) { 1571931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Network is blacklisted, skip 157277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist logDenial("attemptAutoJoin skip blacklisted -> status=", config); 157327355a942653264388e909a4276196ee63e57811vandwalle continue; 157427355a942653264388e909a4276196ee63e57811vandwalle } 1575f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (config.networkId == currentNetId) { 1576ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle if (DBG) { 157721bc54cb37a0085b1c909cb4d55ebb12a2facefbvandwalle logDbg("attemptAutoJoin skip current candidate " 157821bc54cb37a0085b1c909cb4d55ebb12a2facefbvandwalle + Integer.toString(currentNetId) 1579ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle + " key " + config.configKey(true)); 1580ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle } 1581f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle continue; 1582f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1583f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 15840eebae7334d6129f7ca1344e4b20199794994358vandwalle boolean isLastSelected = false; 15850eebae7334d6129f7ca1344e4b20199794994358vandwalle if (lastSelectedConfiguration != null && 15860eebae7334d6129f7ca1344e4b20199794994358vandwalle config.configKey().equals(lastSelectedConfiguration)) { 15870eebae7334d6129f7ca1344e4b20199794994358vandwalle isLastSelected = true; 15880eebae7334d6129f7ca1344e4b20199794994358vandwalle } 15890eebae7334d6129f7ca1344e4b20199794994358vandwalle 15904fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle if (config.lastRoamingFailure != 0 15914fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle && currentConfiguration != null 15924fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle && (lastSelectedConfiguration == null 15934fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle || !config.configKey().equals(lastSelectedConfiguration))) { 15944fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle // Apply blacklisting for roaming to this config if: 15954fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle // - the target config had a recent roaming failure 15964fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle // - we are currently associated 15974fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle // - the target config is not the last selected 15984fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle if (now > config.lastRoamingFailure 15994fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle && (now - config.lastRoamingFailure) 16004fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle < config.roamingFailureBlackListTimeMilli) { 16014fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle if (DBG) { 16024fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle logDbg("compareNetwork not switching to " + config.configKey() 16034fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle + " from current " + currentConfiguration.configKey() 16044fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle + " because it is blacklisted due to roam failure, " 16054fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle + " blacklist remain time = " 16064fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle + (now - config.lastRoamingFailure) + " ms"); 16074fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle } 16084fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle continue; 16094fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle } 16104fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle } 16114fa99f57077ab287d6ed1b51cf308c44ce8bbe0bvandwalle 16121ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle int boost = config.autoJoinUseAggressiveJoinAttemptThreshold + weakRssiBailCount; 161377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (underThreshold(config, 161477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist mWifiConfigStore.thresholdInitialAutoJoinAttemptMin24RSSI.get() - boost, 161577f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist mWifiConfigStore.thresholdInitialAutoJoinAttemptMin5RSSI.get() - boost)) { 161677f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 161777f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist logDenial("attemptAutoJoin skip due to low visibility -> status=", config); 16180eebae7334d6129f7ca1344e4b20199794994358vandwalle 1619c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle // Don't try to autojoin a network that is too far but 1620c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle // If that configuration is a user's choice however, try anyway 16210eebae7334d6129f7ca1344e4b20199794994358vandwalle if (!isLastSelected) { 16220eebae7334d6129f7ca1344e4b20199794994358vandwalle config.autoJoinBailedDueToLowRssi = true; 16231ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle didBailDueToWeakRssi = true; 16248c9088d11880553458f09377cc60d6eb7e66747bvandwalle continue; 16250eebae7334d6129f7ca1344e4b20199794994358vandwalle } else { 16260eebae7334d6129f7ca1344e4b20199794994358vandwalle // Next time, try to be a bit more aggressive in auto-joining 16270eebae7334d6129f7ca1344e4b20199794994358vandwalle if (config.autoJoinUseAggressiveJoinAttemptThreshold 1628dd0c558776fcfba3f754bb0cd6533f2c9c23ec1evandwalle < WifiConfiguration.MAX_INITIAL_AUTO_JOIN_RSSI_BOOST 1629dd0c558776fcfba3f754bb0cd6533f2c9c23ec1evandwalle && config.autoJoinBailedDueToLowRssi) { 1630dd0c558776fcfba3f754bb0cd6533f2c9c23ec1evandwalle config.autoJoinUseAggressiveJoinAttemptThreshold += 4; 16314dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 16328c9088d11880553458f09377cc60d6eb7e66747bvandwalle } 16330eebae7334d6129f7ca1344e4b20199794994358vandwalle } 1634d30127db46224e45554f8964209221bba8ad41d9vandwalle if (config.numNoInternetAccessReports > 0 1635d30127db46224e45554f8964209221bba8ad41d9vandwalle && !isLastSelected 1636d30127db46224e45554f8964209221bba8ad41d9vandwalle && !config.validatedInternetAccess) { 1637d30127db46224e45554f8964209221bba8ad41d9vandwalle // Avoid autoJoining this network because last time we used it, it didn't 1638d30127db46224e45554f8964209221bba8ad41d9vandwalle // have internet access, and we never manage to validate internet access on this 1639d30127db46224e45554f8964209221bba8ad41d9vandwalle // network configuration 16400eebae7334d6129f7ca1344e4b20199794994358vandwalle if (DBG) { 1641d30127db46224e45554f8964209221bba8ad41d9vandwalle logDbg("attemptAutoJoin skip candidate due to no InternetAccess " 1642d30127db46224e45554f8964209221bba8ad41d9vandwalle + config.configKey(true) 1643d30127db46224e45554f8964209221bba8ad41d9vandwalle + " num reports " + config.numNoInternetAccessReports); 16449f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle } 16450eebae7334d6129f7ca1344e4b20199794994358vandwalle continue; 16468c9088d11880553458f09377cc60d6eb7e66747bvandwalle } 16478c9088d11880553458f09377cc60d6eb7e66747bvandwalle 1648ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle if (DBG) { 1649e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle String cur = ""; 1650e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle if (candidate != null) { 1651e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle cur = " current candidate " + candidate.configKey(); 1652e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle } 1653e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle logDbg("attemptAutoJoin trying id=" 1654c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle + Integer.toString(config.networkId) + " " 1655b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + config.configKey(true) 1656e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + " status=" + config.autoJoinStatus 1657e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle + cur); 1658ed9938883ae2dade81c8be6cd6ceaef3febd5239vandwalle } 1659f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 1660f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (candidate == null) { 1661f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle candidate = config; 1662f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } else { 1663dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 1664453aee50caf7e332e77ab3d995d7c87a958e4fd4vandwalle logDbg("attemptAutoJoin will compare candidate " + candidate.configKey() 16654dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle + " with " + config.configKey()); 1666f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 16674d381bc39f5263effdae73ec99065eb299b806caVinit Deshpande 1668833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle int order = compareWifiConfigurations(candidate, config); 16694d381bc39f5263effdae73ec99065eb299b806caVinit Deshpande if (VDBG) { 16704d381bc39f5263effdae73ec99065eb299b806caVinit Deshpande logDbg("attemptAutoJoin compareWifiConfigurations returned " + order); 16714d381bc39f5263effdae73ec99065eb299b806caVinit Deshpande } 16722451dbcc4f9641df188326215b204b798eb70c46vandwalle 16732451dbcc4f9641df188326215b204b798eb70c46vandwalle // The lastSelectedConfiguration is the configuration the user has manually selected 1674c290d8dff6172d5fde7b9dfd74d3a20785dab246vandwalle // thru WifiPicker, or that a 3rd party app asked us to connect to via the 16752451dbcc4f9641df188326215b204b798eb70c46vandwalle // enableNetwork with disableOthers=true WifiManager API 16762451dbcc4f9641df188326215b204b798eb70c46vandwalle // As this is a direct user choice, we strongly prefer this configuration, 16772451dbcc4f9641df188326215b204b798eb70c46vandwalle // hence give +/-100 16782451dbcc4f9641df188326215b204b798eb70c46vandwalle if ((lastSelectedConfiguration != null) 16792451dbcc4f9641df188326215b204b798eb70c46vandwalle && candidate.configKey().equals(lastSelectedConfiguration)) { 16802451dbcc4f9641df188326215b204b798eb70c46vandwalle // candidate is the last selected configuration, 16812451dbcc4f9641df188326215b204b798eb70c46vandwalle // so keep it above connect choices (+/-60) and 16822451dbcc4f9641df188326215b204b798eb70c46vandwalle // above RSSI/scorer based selection of linked configuration (+/- 50) 16832451dbcc4f9641df188326215b204b798eb70c46vandwalle // by reducing order by -100 16842451dbcc4f9641df188326215b204b798eb70c46vandwalle order = order - 100; 1685dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 16862f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle logDbg(" ...and prefers -100 " + candidate.configKey() 16872451dbcc4f9641df188326215b204b798eb70c46vandwalle + " over " + config.configKey() 16882451dbcc4f9641df188326215b204b798eb70c46vandwalle + " because it is the last selected -> " 16892451dbcc4f9641df188326215b204b798eb70c46vandwalle + Integer.toString(order)); 16902451dbcc4f9641df188326215b204b798eb70c46vandwalle } 16912451dbcc4f9641df188326215b204b798eb70c46vandwalle } else if ((lastSelectedConfiguration != null) 16922451dbcc4f9641df188326215b204b798eb70c46vandwalle && config.configKey().equals(lastSelectedConfiguration)) { 16932451dbcc4f9641df188326215b204b798eb70c46vandwalle // config is the last selected configuration, 16942451dbcc4f9641df188326215b204b798eb70c46vandwalle // so keep it above connect choices (+/-60) and 16952451dbcc4f9641df188326215b204b798eb70c46vandwalle // above RSSI/scorer based selection of linked configuration (+/- 50) 16962451dbcc4f9641df188326215b204b798eb70c46vandwalle // by increasing order by +100 16972451dbcc4f9641df188326215b204b798eb70c46vandwalle order = order + 100; 1698dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (VDBG) { 16992f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle logDbg(" ...and prefers +100 " + config.configKey() 17002451dbcc4f9641df188326215b204b798eb70c46vandwalle + " over " + candidate.configKey() 17012451dbcc4f9641df188326215b204b798eb70c46vandwalle + " because it is the last selected -> " 17022451dbcc4f9641df188326215b204b798eb70c46vandwalle + Integer.toString(order)); 17032451dbcc4f9641df188326215b204b798eb70c46vandwalle } 17042451dbcc4f9641df188326215b204b798eb70c46vandwalle } 17052451dbcc4f9641df188326215b204b798eb70c46vandwalle 1706f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (order > 0) { 1707931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Ascending : candidate < config 1708f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle candidate = config; 1709f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1710f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1711f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1712f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 17132451dbcc4f9641df188326215b204b798eb70c46vandwalle // Now, go thru scan result to try finding a better untrusted network 1714833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle if (mNetworkScoreCache != null && mAllowUntrustedConnections) { 1715f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle int rssi5 = WifiConfiguration.INVALID_RSSI; 1716f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle int rssi24 = WifiConfiguration.INVALID_RSSI; 1717f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle if (candidate != null) { 1718f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle rssi5 = candidate.visibility.rssi5; 1719f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle rssi24 = candidate.visibility.rssi24; 1720f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1721f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 1722931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Get current date 17232451dbcc4f9641df188326215b204b798eb70c46vandwalle long nowMs = System.currentTimeMillis(); 1724c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle int currentScore = -10000; 1725c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle // The untrusted network with highest score 172625ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande ScanDetail untrustedCandidate = null; 17272451dbcc4f9641df188326215b204b798eb70c46vandwalle // Look for untrusted scored network only if the current candidate is bad 1728c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle if (isBadCandidate(rssi24, rssi5)) { 172925ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande for (ScanDetail scanDetail : scanResultCache.values()) { 173025ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande ScanResult result = scanDetail.getScanResult(); 1731c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle // We look only at untrusted networks with a valid SSID 1732c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle // A trusted result would have been looked at thru it's Wificonfiguration 17338639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson if (TextUtils.isEmpty(result.SSID) || !result.untrusted || 17348639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson !isOpenNetwork(result)) { 1735c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle continue; 1736c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle } 17372c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson String quotedSSID = "\"" + result.SSID + "\""; 17382c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson if (mWifiConfigStore.mDeletedEphemeralSSIDs.contains(quotedSSID)) { 17392ce99b40c36ed0352b31aa85d5f9383d5f0506f5vandwalle // SSID had been Forgotten by user, then don't score it 17402ce99b40c36ed0352b31aa85d5f9383d5f0506f5vandwalle continue; 17412ce99b40c36ed0352b31aa85d5f9383d5f0506f5vandwalle } 1742833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle if ((nowMs - result.seen) < mScanResultAutoJoinAge) { 1743c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle // Increment usage count for the network 17442c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson mWifiConnectionStatistics.incrementOrAddUntrusted(quotedSSID, 0, 1); 1745c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle 17462c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson boolean isActiveNetwork = currentConfiguration != null 17472c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson && currentConfiguration.SSID.equals(quotedSSID); 174881c9ea6c343bc7f8d87095237e59844a974d0b70Jeff Davidson int score = mNetworkScoreCache.getNetworkScore(result, isActiveNetwork); 1749c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle if (score != WifiNetworkScoreCache.INVALID_NETWORK_SCORE 1750c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle && score > currentScore) { 1751c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle // Highest score: Select this candidate 1752c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle currentScore = score; 175325ee2d5d30434712b28aef6eec9460035101e493Vinit Deshpande untrustedCandidate = scanDetail; 1754c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle if (VDBG) { 1755c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle logDbg("AutoJoinController: found untrusted candidate " 1756c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle + result.SSID 1757dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + " RSSI=" + result.level 1758dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + " freq=" + result.frequency 1759dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle + " score=" + score); 1760c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle } 1761f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1762f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1763f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1764f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1765c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle if (untrustedCandidate != null) { 17668639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson // At this point, we have an untrusted network candidate. 17678639f6266cb70bf92d1561af43ac2d7b2b97298eJeff Davidson // Create the new ephemeral configuration and see if we should switch over 1768833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle candidate = 1769833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle mWifiConfigStore.wifiConfigurationFromScanResult(untrustedCandidate); 1770833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle candidate.allowedKeyManagement.set(KeyMgmt.NONE); 1771833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle candidate.ephemeral = true; 1772c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle } 1773c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle } 1774b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle 17751ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle long lastUnwanted = 17761ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle System.currentTimeMillis() 17771ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle - mWifiConfigStore.lastUnwantedNetworkDisconnectTimestamp; 17781ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle if (candidate == null 17791ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle && lastSelectedConfiguration == null 17801ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle && currentConfiguration == null 17811ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle && didBailDueToWeakRssi 17821ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle && (mWifiConfigStore.lastUnwantedNetworkDisconnectTimestamp == 0 1783dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle || lastUnwanted > (1000 * 60 * 60 * 24 * 7)) 17841ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle ) { 17851ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // We are bailing out of autojoin although we are seeing a weak configuration, and 17861ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // - we didn't find another valid candidate 17871ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // - we are not connected 17881ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // - without a user network selection choice 17891ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // - ConnectivityService has not triggered an unwanted network disconnect 17901ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // on this device for a week (hence most likely there is no SIM card or cellular) 17911ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // If all those conditions are met, then boost the RSSI of the weak networks 17921ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle // that we are seeing so as we will eventually pick one 17931ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle if (weakRssiBailCount < 10) 17941ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle weakRssiBailCount += 1; 17951ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle } else { 17961ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle if (weakRssiBailCount > 0) 17971ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle weakRssiBailCount -= 1; 17981ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle } 17991ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle 1800931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle /** 1801931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * If candidate is found, check the state of the connection so as 1802931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * to decide if we should be acting on this candidate and switching over 1803931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle */ 1804e0aa0a004d161173992a0e9af1b431fae91f4a71vandwalle int networkDelta = compareNetwork(candidate, lastSelectedConfiguration); 1805b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle if (DBG && candidate != null) { 1806b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle String doSwitch = ""; 1807b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle String current = ""; 1808b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle if (networkDelta < 0) { 1809b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle doSwitch = " -> not switching"; 1810b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle } 1811b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle if (currentConfiguration != null) { 18122f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle current = " with current " + currentConfiguration.configKey(); 1813b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle } 1814b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle logDbg("attemptAutoJoin networkSwitching candidate " 1815b57df70bdf17ba45ef4d18b11414cb24dcbe1fb9vandwalle + candidate.configKey() 1816b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + current 1817c6f06c628ee3583b60ff31a7da442e0ac7b26d97vandwalle + " linked=" + (currentConfiguration != null 1818dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle && currentConfiguration.isLinked(candidate)) 1819b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + " : delta=" 1820b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + Integer.toString(networkDelta) + " " 1821b664cfeab6f02e24376ea0a15beb83d142f0b14dvandwalle + doSwitch); 1822b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } 18234dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 1824931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle /** 1825931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * Ask WifiStateMachine permission to switch : 1826931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * if user is currently streaming voice traffic, 1827931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle * then we should not be allowed to switch regardless of the delta 1828931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle */ 182977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (mWifiStateMachine.shouldSwitchNetwork(networkDelta)) { // !!! JNo: Here! 1830b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle if (mStaStaSupported) { 1831b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle logDbg("mStaStaSupported --> error do nothing now "); 1832b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } else { 1833b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle if (currentConfiguration != null && currentConfiguration.isLinked(candidate)) { 1834b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle networkSwitchType = AUTO_JOIN_EXTENDED_ROAMING; 1835b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } else { 1836b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle networkSwitchType = AUTO_JOIN_OUT_OF_NETWORK_ROAMING; 1837b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } 1838b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle if (DBG) { 1839b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle logDbg("AutoJoin auto connect with netId " 1840b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle + Integer.toString(candidate.networkId) 1841b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle + " to " + candidate.configKey()); 1842b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } 18432451dbcc4f9641df188326215b204b798eb70c46vandwalle if (didOverride) { 18442451dbcc4f9641df188326215b204b798eb70c46vandwalle candidate.numScorerOverrideAndSwitchedNetwork++; 18452451dbcc4f9641df188326215b204b798eb70c46vandwalle } 1846c298087de50ea56c31a4ade7ee1e83b313bb63c7vandwalle candidate.numAssociation++; 1847e8c89583e489d451880471b7cc7659bd9fa802f4vandwalle mWifiConnectionStatistics.numAutoJoinAttempt++; 18489f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle 18492c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson if (candidate.ephemeral) { 18502c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson // We found a new candidate that we are going to connect to, then 18512c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson // increase its connection count 18522c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson mWifiConnectionStatistics. 18532c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson incrementOrAddUntrusted(candidate.SSID, 1, 0); 18542c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson } 18552c9b6297f3cd74780a084634320d03a413a3b779Jeff Davidson 18562f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle if (candidate.BSSID == null || candidate.BSSID.equals("any")) { 18572f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle // First step we selected the configuration we want to connect to 18582f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle // Second step: Look for the best Scan result for this configuration 18592f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle // TODO this algorithm should really be done in one step 18602f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle String currentBSSID = mWifiStateMachine.getCurrentBSSID(); 1861833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle ScanResult roamCandidate = 1862833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle attemptRoam(null, candidate, mScanResultAutoJoinAge, null); 18632f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle if (roamCandidate != null && currentBSSID != null 18642f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle && currentBSSID.equals(roamCandidate.BSSID)) { 18652f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle // Sanity, we were already asociated to that candidate 18662f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle roamCandidate = null; 18672f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle } 18682f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle if (roamCandidate != null && roamCandidate.is5GHz()) { 18692f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle // If the configuration hasn't a default BSSID selected, and the best 18702f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle // candidate is 5GHZ, then select this candidate so as WifiStateMachine and 18712f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle // supplicant will pick it first 18722f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle candidate.autoJoinBSSID = roamCandidate.BSSID; 18732f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle if (VDBG) { 18742f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle logDbg("AutoJoinController: lock to 5GHz " 18752f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle + candidate.autoJoinBSSID 18762f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle + " RSSI=" + roamCandidate.level 18772f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle + " freq=" + roamCandidate.frequency); 18782f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle } 1879448c9536a302c58a79e271b1721c08b8882f800evandwalle } else { 1880448c9536a302c58a79e271b1721c08b8882f800evandwalle // We couldnt find a roam candidate 1881448c9536a302c58a79e271b1721c08b8882f800evandwalle candidate.autoJoinBSSID = "any"; 18829f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle } 18839f3349fa2cd39d690d1e2b7c3b71ced412e24f2cvandwalle } 1884448c9536a302c58a79e271b1721c08b8882f800evandwalle mWifiStateMachine.sendMessage(WifiStateMachine.CMD_AUTO_CONNECT, 1885dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle candidate.networkId, networkSwitchType, candidate); 188668fee36dac1dda5c596c00ef33fdbc0962e9ec9fvandwalle found = true; 18874dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle } 1888b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } 18894dc6f3a322806b25d50039614cde1b94fe91ab17vandwalle 1890d4c25fd76644d5490700ae69fada4669de5193a1Pierre Vandwalle if (networkSwitchType == AUTO_JOIN_IDLE && !mWifiConfigStore.enableHalBasedPno.get()) { 1891e67ec726c07410073575473c0f50dc737629f5davandwalle String currentBSSID = mWifiStateMachine.getCurrentBSSID(); 1892931338d1533d1bd11ba0e5aebb4e4b7b2c8ab056vandwalle // Attempt same WifiConfiguration roaming 1893833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle ScanResult roamCandidate = 1894833dcce8f6712f7594f06ea33208e3e106c15afcvandwalle attemptRoam(null, currentConfiguration, mScanResultAutoJoinAge, currentBSSID); 1895e67ec726c07410073575473c0f50dc737629f5davandwalle if (roamCandidate != null && currentBSSID != null 1896e67ec726c07410073575473c0f50dc737629f5davandwalle && currentBSSID.equals(roamCandidate.BSSID)) { 1897e67ec726c07410073575473c0f50dc737629f5davandwalle roamCandidate = null; 1898e67ec726c07410073575473c0f50dc737629f5davandwalle } 18992f2cf21662275a0e93d7d7a6ad3d98b4c596dcf0vandwalle if (roamCandidate != null && mWifiStateMachine.shouldSwitchNetwork(999)) { 1900b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle if (DBG) { 1901b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle logDbg("AutoJoin auto roam with netId " 1902b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle + Integer.toString(currentConfiguration.networkId) 1903b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle + " " + currentConfiguration.configKey() + " to BSSID=" 1904b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle + roamCandidate.BSSID + " freq=" + roamCandidate.frequency 19051ec92c57244311c7fca3ab6b244a06c2b2b58902vandwalle + " RSSI=" + roamCandidate.level); 1906b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle } 1907b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle networkSwitchType = AUTO_JOIN_ROAMING; 1908e8c89583e489d451880471b7cc7659bd9fa802f4vandwalle mWifiConnectionStatistics.numAutoRoamAttempt++; 1909e8c89583e489d451880471b7cc7659bd9fa802f4vandwalle 1910b07da189850a4bfa268f8ab9be7867935eb2ecb5vandwalle mWifiStateMachine.sendMessage(WifiStateMachine.CMD_AUTO_ROAM, 1911dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle currentConfiguration.networkId, 1, roamCandidate); 191268fee36dac1dda5c596c00ef33fdbc0962e9ec9fvandwalle found = true; 1913f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1914f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 1915b97e66604f472f67c233bb8f8d9630bb36131e2cvandwalle if (VDBG) logDbg("Done attemptAutoJoin status=" + Integer.toString(networkSwitchType)); 191668fee36dac1dda5c596c00ef33fdbc0962e9ec9fvandwalle return found; 1917f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle } 191877f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist 191977f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist private void logDenial(String reason, WifiConfiguration config) { 192077f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist if (!DBG) { 192177f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist return; 192277f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 192377f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist logDbg(reason + config.toString()); 192477f2b82a2e80af8da52c22d69a76def6d4209757Jan Nordqvist } 1925dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle 1926dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle /** 1927dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * Get the Wifi PNO list 1928dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * 1929dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * @return list of WifiNative.WifiPnoNetwork 1930dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle */ 1931dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle private ArrayList<WifiNative.WifiPnoNetwork> buildPnoList() { 1932dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle ArrayList<WifiNative.WifiPnoNetwork> list = new ArrayList<WifiNative.WifiPnoNetwork>(); 1933dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle 1934dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle ArrayList<WifiConfiguration> sortedWifiConfigurations 1935dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle = new ArrayList<WifiConfiguration>(mWifiConfigStore.getConfiguredNetworks()); 1936dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle Log.e(TAG, "sortedWifiConfigurations size " + sortedWifiConfigurations.size()); 1937dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (sortedWifiConfigurations.size() != 0) { 1938dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle // Sort by descending priority 1939dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle Collections.sort(sortedWifiConfigurations, new Comparator() { 1940dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle public int compare(Object o1, Object o2) { 1941dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle WifiConfiguration a = (WifiConfiguration) o1; 1942dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle WifiConfiguration b = (WifiConfiguration) o2; 1943dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (a.priority > b.priority) { 1944dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle return 1; 1945dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 1946dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (a.priority < b.priority) { 1947dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle return -1; 1948dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 1949dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle return 1; // cannot happen 1950dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 1951dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle }); 1952dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 1953dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle 1954dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle for (WifiConfiguration config : sortedWifiConfigurations) { 1955dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle 1956dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle // Use the 2.4GHz threshold since most WifiConfigurations are dual bands 1957dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle // There is very little penalty with triggering too soon, i.e. if PNO finds a network 1958dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle // that has an RSSI too low for us to attempt joining it. 1959dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle int threshold = mWifiConfigStore.thresholdInitialAutoJoinAttemptMin24RSSI.get(); 1960dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle Log.e(TAG, "found sortedWifiConfigurations : " + config.configKey()); 1961dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle WifiNative.WifiPnoNetwork network = mWifiNative.new WifiPnoNetwork(config, threshold); 1962dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle list.add(network); 1963dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 1964dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle return list; 1965dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 1966dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle 1967dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle WifiConfiguration getWifiConfiguration(WifiNative.WifiPnoNetwork network) { 1968dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (network.configKey != null) { 1969dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle return mWifiConfigStore.getWifiConfiguration(network.configKey); 1970dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 1971dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle return null; 1972dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 1973dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle 1974dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle ArrayList<WifiNative.WifiPnoNetwork> getPnoList(WifiConfiguration current) { 1975dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle int size = -1; 1976dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle ArrayList<WifiNative.WifiPnoNetwork> list; 1977dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle 1978dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (mCachedPnoList != null) { 1979dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle size = mCachedPnoList.size(); 1980dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 1981dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle Log.e(TAG, " get Pno List " + size); 1982dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (mCachedPnoList == null) { 1983dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle mCachedPnoList = buildPnoList(); 1984dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 1985dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle 1986dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (current != null) { 1987dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle String configKey = current.configKey(); 1988dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle /** 1989dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * If we are currently associated to a WifiConfiguration then include 1990dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle * only those networks that have a higher priority 1991dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle */ 1992dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle list = new ArrayList<WifiNative.WifiPnoNetwork>(); 1993dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle for (WifiNative.WifiPnoNetwork network : mCachedPnoList) { 1994dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle WifiConfiguration config = getWifiConfiguration(network); 1995dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (config != null && !configKey.equals(network.configKey)) { 1996dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle int choice = getConnectChoice(config, current); 1997dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle if (choice >= 0) { 1998dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle // config is same or of higher priority 1999dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle list.add(network); 2000dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 2001dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 2002dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 2003dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } else { 2004dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle list = mCachedPnoList; 2005dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 2006dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle return list; 2007dd490cf1df37b70a8625dc4ec8e712f740dd1e4aPierre Vandwalle } 2008f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle} 2009f22d23092ab37286a5ef9d257d5bb32c421d2669vandwalle 2010