WifiStateMachine.java revision 3f790a1d4483446f15216d5077c6c77dfb41408f
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.wifi; 18 19import static android.net.wifi.WifiManager.WIFI_AP_STATE_DISABLED; 20import static android.net.wifi.WifiManager.WIFI_AP_STATE_DISABLING; 21import static android.net.wifi.WifiManager.WIFI_AP_STATE_ENABLED; 22import static android.net.wifi.WifiManager.WIFI_AP_STATE_ENABLING; 23import static android.net.wifi.WifiManager.WIFI_AP_STATE_FAILED; 24import static android.net.wifi.WifiManager.WIFI_STATE_DISABLED; 25import static android.net.wifi.WifiManager.WIFI_STATE_DISABLING; 26import static android.net.wifi.WifiManager.WIFI_STATE_ENABLED; 27import static android.net.wifi.WifiManager.WIFI_STATE_ENABLING; 28import static android.net.wifi.WifiManager.WIFI_STATE_UNKNOWN; 29 30import android.Manifest; 31import android.app.ActivityManager; 32import android.app.AlarmManager; 33import android.app.PendingIntent; 34import android.app.backup.IBackupManager; 35import android.bluetooth.BluetoothAdapter; 36import android.content.BroadcastReceiver; 37import android.content.Context; 38import android.content.Intent; 39import android.content.IntentFilter; 40import android.content.pm.ApplicationInfo; 41import android.content.pm.IPackageManager; 42import android.content.pm.PackageManager; 43import android.database.ContentObserver; 44import android.net.BaseDhcpStateMachine; 45import android.net.ConnectivityManager; 46import android.net.DhcpResults; 47import android.net.DhcpStateMachine; 48import android.net.InterfaceConfiguration; 49import android.net.LinkAddress; 50import android.net.LinkProperties; 51import android.net.Network; 52import android.net.NetworkAgent; 53import android.net.NetworkCapabilities; 54import android.net.NetworkFactory; 55import android.net.NetworkInfo; 56import android.net.NetworkInfo.DetailedState; 57import android.net.NetworkRequest; 58import android.net.NetworkUtils; 59import android.net.RouteInfo; 60import android.net.StaticIpConfiguration; 61import android.net.ip.IpReachabilityMonitor; 62import android.net.wifi.RssiPacketCountInfo; 63import android.net.wifi.ScanResult; 64import android.net.wifi.ScanSettings; 65import android.net.wifi.SupplicantState; 66import android.net.wifi.WifiChannel; 67import android.net.wifi.WifiConfiguration; 68import android.net.wifi.WifiConnectionStatistics; 69import android.net.wifi.WifiEnterpriseConfig; 70import android.net.wifi.WifiInfo; 71import android.net.wifi.WifiLinkLayerStats; 72import android.net.wifi.WifiManager; 73import android.net.wifi.WifiScanner; 74import android.net.wifi.WifiSsid; 75import android.net.wifi.WpsInfo; 76import android.net.wifi.WpsResult; 77import android.net.wifi.WpsResult.Status; 78import android.net.wifi.p2p.IWifiP2pManager; 79import android.os.BatteryStats; 80import android.os.Binder; 81import android.os.Bundle; 82import android.os.IBinder; 83import android.os.INetworkManagementService; 84import android.os.Looper; 85import android.os.Message; 86import android.os.Messenger; 87import android.os.PowerManager; 88import android.os.Process; 89import android.os.RemoteException; 90import android.os.SystemClock; 91import android.os.SystemProperties; 92import android.os.UserHandle; 93import android.os.WorkSource; 94import android.provider.Settings; 95import android.telephony.TelephonyManager; 96import android.text.TextUtils; 97import android.util.Log; 98import android.util.LruCache; 99 100import com.android.internal.R; 101import com.android.internal.app.IBatteryStats; 102import com.android.internal.util.AsyncChannel; 103import com.android.internal.util.Protocol; 104import com.android.internal.util.State; 105import com.android.internal.util.StateMachine; 106import com.android.server.connectivity.KeepalivePacketData; 107import com.android.server.net.NetlinkTracker; 108import com.android.server.wifi.hotspot2.IconEvent; 109import com.android.server.wifi.hotspot2.NetworkDetail; 110import com.android.server.wifi.hotspot2.osu.OSUInfo; 111import com.android.server.wifi.p2p.WifiP2pServiceImpl; 112 113import java.io.BufferedReader; 114import java.io.FileDescriptor; 115import java.io.FileNotFoundException; 116import java.io.FileReader; 117import java.io.IOException; 118import java.io.PrintWriter; 119import java.net.Inet4Address; 120import java.net.InetAddress; 121import java.util.ArrayList; 122import java.util.Arrays; 123import java.util.Calendar; 124import java.util.Collection; 125import java.util.HashSet; 126import java.util.LinkedList; 127import java.util.List; 128import java.util.Locale; 129import java.util.Queue; 130import java.util.Random; 131import java.util.Set; 132import java.util.concurrent.atomic.AtomicBoolean; 133import java.util.concurrent.atomic.AtomicInteger; 134import java.util.regex.Pattern; 135 136/** 137 * TODO: 138 * Deprecate WIFI_STATE_UNKNOWN 139 */ 140 141/** 142 * Track the state of Wifi connectivity. All event handling is done here, 143 * and all changes in connectivity state are initiated here. 144 * 145 * Wi-Fi now supports three modes of operation: Client, SoftAp and p2p 146 * In the current implementation, we support concurrent wifi p2p and wifi operation. 147 * The WifiStateMachine handles SoftAp and Client operations while WifiP2pService 148 * handles p2p operation. 149 * 150 * @hide 151 */ 152public class WifiStateMachine extends StateMachine implements WifiNative.WifiPnoEventHandler, 153 WifiNative.WifiRssiEventHandler { 154 155 private static final String NETWORKTYPE = "WIFI"; 156 private static final String NETWORKTYPE_UNTRUSTED = "WIFI_UT"; 157 private static boolean DBG = false; 158 private static boolean VDBG = false; 159 private static boolean VVDBG = false; 160 private static boolean USE_PAUSE_SCANS = false; 161 private static boolean mLogMessages = false; 162 private static final String TAG = "WifiStateMachine"; 163 164 private static final int ONE_HOUR_MILLI = 1000 * 60 * 60; 165 166 private static final String GOOGLE_OUI = "DA-A1-19"; 167 168 /* temporary debug flag - best network selection development */ 169 private static boolean PDBG = false; 170 171 /* debug flag, indicating if handling of ASSOCIATION_REJECT ended up blacklisting 172 * the corresponding BSSID. 173 */ 174 private boolean didBlackListBSSID = false; 175 176 /** 177 * Log with error attribute 178 * 179 * @param s is string log 180 */ 181 protected void loge(String s) { 182 Log.e(getName(), s); 183 } 184 protected void logd(String s) { 185 Log.d(getName(), s); 186 } 187 protected void log(String s) {; 188 Log.d(getName(), s); 189 } 190 191 private WifiMetrics mWifiMetrics; 192 private WifiMonitor mWifiMonitor; 193 private WifiNative mWifiNative; 194 private WifiConfigStore mWifiConfigStore; 195 private WifiQualifiedNetworkSelector mWifiQualifiedNetworkSelector; 196 private INetworkManagementService mNwService; 197 private ConnectivityManager mCm; 198 private BaseWifiLogger mWifiLogger; 199 private WifiApConfigStore mWifiApConfigStore; 200 private final boolean mP2pSupported; 201 private final AtomicBoolean mP2pConnected = new AtomicBoolean(false); 202 private boolean mTemporarilyDisconnectWifi = false; 203 private final String mPrimaryDeviceType; 204 205 /* Scan results handling */ 206 private List<ScanDetail> mScanResults = new ArrayList<>(); 207 private static final Pattern scanResultPattern = Pattern.compile("\t+"); 208 private static final int SCAN_RESULT_CACHE_SIZE = 160; 209 private final LruCache<NetworkDetail, ScanDetail> mScanResultCache; 210 // For debug, number of known scan results that were found as part of last scan result event, 211 // as well the number of scans results returned by the supplicant with that message 212 private int mNumScanResultsKnown; 213 private int mNumScanResultsReturned; 214 215 private boolean mScreenOn = false; 216 217 /* Chipset supports background scan */ 218 private final boolean mBackgroundScanSupported; 219 220 private final String mInterfaceName; 221 /* Tethering interface could be separate from wlan interface */ 222 private String mTetherInterfaceName; 223 224 private int mLastSignalLevel = -1; 225 private String mLastBssid; 226 private int mLastNetworkId; // The network Id we successfully joined 227 private boolean linkDebouncing = false; 228 229 private boolean mHalBasedPnoDriverSupported = false; 230 231 // Below booleans are configurations coming from the Developper Settings 232 private boolean mEnableAssociatedNetworkSwitchingInDevSettings = true; 233 private boolean mHalBasedPnoEnableInDevSettings = false; 234 235 private int mHalFeatureSet = 0; 236 private static int mPnoResultFound = 0; 237 238 private int mCurrentUserId = UserHandle.USER_SYSTEM; 239 240 @Override 241 public void onPnoNetworkFound(ScanResult results[]) { 242 if (DBG) { 243 Log.e(TAG, "onPnoNetworkFound event received num = " + results.length); 244 for (int i = 0; i < results.length; i++) { 245 Log.e(TAG, results[i].toString()); 246 } 247 } 248 sendMessage(CMD_PNO_NETWORK_FOUND, results.length, 0, results); 249 } 250 251 public void processPnoNetworkFound(ScanResult results[]) { 252 ScanSettings settings = new ScanSettings(); 253 settings.channelSet = new ArrayList<WifiChannel>(); 254 StringBuilder sb = new StringBuilder(); 255 sb.append(""); 256 for (int i=0; i<results.length; i++) { 257 WifiChannel channel = new WifiChannel(); 258 channel.freqMHz = results[i].frequency; 259 settings.channelSet.add(channel); 260 sb.append(results[i].SSID).append(" "); 261 } 262 263 stopPnoOffload(); 264 265 Log.e(TAG, "processPnoNetworkFound starting scan cnt=" + mPnoResultFound); 266 startScan(PNO_NETWORK_FOUND_SOURCE, mPnoResultFound, settings, null); 267 mPnoResultFound ++; 268 //sendMessage(CMD_SCAN_RESULTS_AVAILABLE); 269 int delay = 30 * 1000; 270 // reconfigure Pno after 1 minutes if we're still in disconnected state 271 sendMessageDelayed(CMD_RESTART_AUTOJOIN_OFFLOAD, delay, 272 mRestartAutoJoinOffloadCounter, " processPnoNetworkFound " + sb.toString(), 273 (long)delay); 274 mRestartAutoJoinOffloadCounter++; 275 } 276 277 @Override 278 public void onRssiThresholdBreached(byte curRssi) { 279 if (DBG) { 280 Log.e(TAG, "onRssiThresholdBreach event. Cur Rssi = " + curRssi); 281 } 282 sendMessage(CMD_RSSI_THRESHOLD_BREACH, curRssi); 283 } 284 285 public void processRssiThreshold(byte curRssi, int reason) { 286 if (curRssi == Byte.MAX_VALUE || curRssi == Byte.MIN_VALUE) { 287 Log.wtf(TAG, "processRssiThreshold: Invalid rssi " + curRssi); 288 return; 289 } 290 for (int i = 0; i < mRssiRanges.length; i++) { 291 if (curRssi < mRssiRanges[i]) { 292 // Assume sorted values(ascending order) for rssi, 293 // bounded by high(127) and low(-128) at extremeties 294 byte maxRssi = mRssiRanges[i]; 295 byte minRssi = mRssiRanges[i-1]; 296 // This value of hw has to be believed as this value is averaged and has breached 297 // the rssi thresholds and raised event to host. This would be eggregious if this 298 // value is invalid 299 mWifiInfo.setRssi((int) curRssi); 300 updateCapabilities(getCurrentWifiConfiguration()); 301 int ret = startRssiMonitoringOffload(maxRssi, minRssi); 302 Log.d(TAG, "Re-program RSSI thresholds for " + smToString(reason) + 303 ": [" + minRssi + ", " + maxRssi + "], curRssi=" + curRssi + " ret=" + ret); 304 break; 305 } 306 } 307 } 308 public void registerNetworkDisabled(int netId) { 309 // Restart legacy PNO and autojoin offload if needed 310 sendMessage(CMD_RESTART_AUTOJOIN_OFFLOAD, 0, 311 mRestartAutoJoinOffloadCounter, " registerNetworkDisabled " + netId); 312 mRestartAutoJoinOffloadCounter++; 313 } 314 315 // Testing various network disconnect cases by sending lots of spurious 316 // disconnect to supplicant 317 private boolean testNetworkDisconnect = false; 318 319 private boolean mEnableRssiPolling = false; 320 private boolean mLegacyPnoEnabled = false; 321 private int mRssiPollToken = 0; 322 /* 3 operational states for STA operation: CONNECT_MODE, SCAN_ONLY_MODE, SCAN_ONLY_WIFI_OFF_MODE 323 * In CONNECT_MODE, the STA can scan and connect to an access point 324 * In SCAN_ONLY_MODE, the STA can only scan for access points 325 * In SCAN_ONLY_WIFI_OFF_MODE, the STA can only scan for access points with wifi toggle being off 326 */ 327 private int mOperationalMode = CONNECT_MODE; 328 private boolean mIsScanOngoing = false; 329 private boolean mIsFullScanOngoing = false; 330 private boolean mSendScanResultsBroadcast = false; 331 332 private final Queue<Message> mBufferedScanMsg = new LinkedList<Message>(); 333 private WorkSource mScanWorkSource = null; 334 private static final int UNKNOWN_SCAN_SOURCE = -1; 335 private static final int SCAN_ALARM_SOURCE = -2; 336 private static final int ADD_OR_UPDATE_SOURCE = -3; 337 private static final int SET_ALLOW_UNTRUSTED_SOURCE = -4; 338 private static final int ENABLE_WIFI = -5; 339 public static final int DFS_RESTRICTED_SCAN_REQUEST = -6; 340 public static final int PNO_NETWORK_FOUND_SOURCE = -7; 341 342 private static final int SCAN_REQUEST_BUFFER_MAX_SIZE = 10; 343 private static final String CUSTOMIZED_SCAN_SETTING = "customized_scan_settings"; 344 private static final String CUSTOMIZED_SCAN_WORKSOURCE = "customized_scan_worksource"; 345 private static final String SCAN_REQUEST_TIME = "scan_request_time"; 346 347 /* Tracks if state machine has received any screen state change broadcast yet. 348 * We can miss one of these at boot. 349 */ 350 private AtomicBoolean mScreenBroadcastReceived = new AtomicBoolean(false); 351 352 private boolean mBluetoothConnectionActive = false; 353 354 private PowerManager.WakeLock mSuspendWakeLock; 355 356 /** 357 * Interval in milliseconds between polling for RSSI 358 * and linkspeed information 359 */ 360 private static final int POLL_RSSI_INTERVAL_MSECS = 3000; 361 362 /** 363 * Interval in milliseconds between receiving a disconnect event 364 * while connected to a good AP, and handling the disconnect proper 365 */ 366 private static final int LINK_FLAPPING_DEBOUNCE_MSEC = 7000; 367 368 /** 369 * Delay between supplicant restarts upon failure to establish connection 370 */ 371 private static final int SUPPLICANT_RESTART_INTERVAL_MSECS = 5000; 372 373 /** 374 * Number of times we attempt to restart supplicant 375 */ 376 private static final int SUPPLICANT_RESTART_TRIES = 5; 377 378 private int mSupplicantRestartCount = 0; 379 /* Tracks sequence number on stop failure message */ 380 private int mSupplicantStopFailureToken = 0; 381 382 /** 383 * Tether state change notification time out 384 */ 385 private static final int TETHER_NOTIFICATION_TIME_OUT_MSECS = 5000; 386 387 /* Tracks sequence number on a tether notification time out */ 388 private int mTetherToken = 0; 389 390 /** 391 * Driver start time out. 392 */ 393 private static final int DRIVER_START_TIME_OUT_MSECS = 10000; 394 395 /* Tracks sequence number on a driver time out */ 396 private int mDriverStartToken = 0; 397 398 /** 399 * Don't select new network when previous network selection is 400 * pending connection for this much time 401 */ 402 private static final int CONNECT_TIMEOUT_MSEC = 3000; 403 404 /** 405 * The link properties of the wifi interface. 406 * Do not modify this directly; use updateLinkProperties instead. 407 */ 408 private LinkProperties mLinkProperties; 409 410 /* Tracks sequence number on a periodic scan message */ 411 private int mPeriodicScanToken = 0; 412 413 // Wakelock held during wifi start/stop and driver load/unload 414 private PowerManager.WakeLock mWakeLock; 415 416 private Context mContext; 417 418 private final Object mDhcpResultsLock = new Object(); 419 private DhcpResults mDhcpResults; 420 421 // NOTE: Do not return to clients - use #getWiFiInfoForUid(int) 422 private WifiInfo mWifiInfo; 423 private NetworkInfo mNetworkInfo; 424 private final NetworkCapabilities mDfltNetworkCapabilities; 425 private SupplicantStateTracker mSupplicantStateTracker; 426 private BaseDhcpStateMachine mDhcpStateMachine; 427 private boolean mDhcpActive = false; 428 429 private int mWifiLinkLayerStatsSupported = 4; // Temporary disable 430 431 private final AtomicInteger mCountryCodeSequence = new AtomicInteger(); 432 433 // Whether the state machine goes thru the Disconnecting->Disconnected->ObtainingIpAddress 434 private boolean mAutoRoaming = false; 435 436 // Roaming failure count 437 private int mRoamFailCount = 0; 438 439 // This is the BSSID we are trying to associate to, it can be set to "any" 440 // if we havent selected a BSSID for joining. 441 // if we havent selected a BSSID for joining. 442 // The BSSID we are associated to is found in mWifiInfo 443 private String mTargetRoamBSSID = "any"; 444 //This one is used to track whta is the current target network ID. This is used for error 445 // handling during connection setup since many error message from supplicant does not report 446 // SSID Once connected, it will be set to invalid 447 private int mTargetNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 448 449 private long mLastDriverRoamAttempt = 0; 450 451 private WifiConfiguration targetWificonfiguration = null; 452 453 // Used as debug to indicate which configuration last was saved 454 private WifiConfiguration lastSavedConfigurationAttempt = null; 455 456 // Used as debug to indicate which configuration last was removed 457 private WifiConfiguration lastForgetConfigurationAttempt = null; 458 459 //Random used by softAP channel Selection 460 private static Random mRandom = new Random(Calendar.getInstance().getTimeInMillis()); 461 462 boolean isRoaming() { 463 return mAutoRoaming; 464 } 465 466 public void autoRoamSetBSSID(int netId, String bssid) { 467 autoRoamSetBSSID(mWifiConfigStore.getWifiConfiguration(netId), bssid); 468 } 469 470 public boolean autoRoamSetBSSID(WifiConfiguration config, String bssid) { 471 boolean ret = true; 472 if (mTargetRoamBSSID == null) mTargetRoamBSSID = "any"; 473 if (bssid == null) bssid = "any"; 474 if (config == null) return false; // Nothing to do 475 476 if (mTargetRoamBSSID != null && bssid == mTargetRoamBSSID && bssid == config.BSSID) { 477 return false; // We didnt change anything 478 } 479 if (!mTargetRoamBSSID.equals("any") && bssid.equals("any")) { 480 // Changing to ANY 481 if (!mWifiConfigStore.roamOnAny) { 482 ret = false; // Nothing to do 483 } 484 } 485 if (config.BSSID != null) { 486 bssid = config.BSSID; 487 if (DBG) { 488 Log.d(TAG, "force BSSID to " + bssid + "due to config"); 489 } 490 } 491 492 if (VDBG) { 493 logd("autoRoamSetBSSID " + bssid + " key=" + config.configKey()); 494 } 495 config.getNetworkSelectionStatus().setNetworkSelectionBSSID(bssid); 496 mTargetRoamBSSID = bssid; 497 mWifiConfigStore.saveWifiConfigBSSID(config); 498 return ret; 499 } 500 501 /** 502 * set Config's default BSSID (for association purpose) 503 * @param config config need set BSSID 504 * @param bssid default BSSID to assocaite with when connect to this network 505 * @return false -- does not change the current default BSSID of the configure 506 * true -- change the current default BSSID of the configur 507 */ 508 private boolean setTargetBssid(WifiConfiguration config, String bssid) { 509 if (config == null) { 510 return false; 511 } 512 513 if (config.BSSID != null) { 514 bssid = config.BSSID; 515 if (DBG) { 516 Log.d(TAG, "force BSSID to " + bssid + "due to config"); 517 } 518 } 519 520 if (bssid == null) { 521 bssid = "any"; 522 } 523 524 String networkSelectionBSSID = config.getNetworkSelectionStatus() 525 .getNetworkSelectionBSSID(); 526 if (networkSelectionBSSID != null && networkSelectionBSSID.equals(bssid)) { 527 if (DBG) { 528 Log.d(TAG, "Current prefered BSSID is same as target"); 529 return false; 530 } 531 } 532 533 if (DBG) { 534 Log.d(TAG, "target set to " + config.SSID + ":" + bssid); 535 } 536 537 config.getNetworkSelectionStatus().setNetworkSelectionBSSID(bssid); 538 mTargetRoamBSSID = bssid; 539 mWifiConfigStore.saveWifiConfigBSSID(config); 540 return true; 541 } 542 /** 543 * Save the UID correctly depending on if this is a new or existing network. 544 * @return true if operation is authorized, false otherwise 545 */ 546 boolean recordUidIfAuthorized(WifiConfiguration config, int uid, boolean onlyAnnotate) { 547 if (!mWifiConfigStore.isNetworkConfigured(config)) { 548 config.creatorUid = uid; 549 config.creatorName = mContext.getPackageManager().getNameForUid(uid); 550 } else if (!mWifiConfigStore.canModifyNetwork(uid, config, onlyAnnotate)) { 551 return false; 552 } 553 554 config.lastUpdateUid = uid; 555 config.lastUpdateName = mContext.getPackageManager().getNameForUid(uid); 556 557 return true; 558 559 } 560 561 /** 562 * Checks to see if user has specified if the apps configuration is connectable. 563 * If the user hasn't specified we query the user and return true. 564 * 565 * @param message The message to be deferred 566 * @param netId Network id of the configuration to check against 567 * @param allowOverride If true we won't defer to the user if the uid of the message holds the 568 * CONFIG_OVERRIDE_PERMISSION 569 * @return True if we are waiting for user feedback or netId is invalid. False otherwise. 570 */ 571 boolean deferForUserInput(Message message, int netId, boolean allowOverride){ 572 final WifiConfiguration config = mWifiConfigStore.getWifiConfiguration(netId); 573 574 // We can only evaluate saved configurations. 575 if (config == null) { 576 logd("deferForUserInput: configuration for netId=" + netId + " not stored"); 577 return true; 578 } 579 580 switch (config.userApproved) { 581 case WifiConfiguration.USER_APPROVED: 582 case WifiConfiguration.USER_BANNED: 583 return false; 584 case WifiConfiguration.USER_PENDING: 585 default: // USER_UNSPECIFIED 586 /* the intention was to ask user here; but a dialog box is * 587 * too invasive; so we are going to allow connection for now */ 588 config.userApproved = WifiConfiguration.USER_APPROVED; 589 return false; 590 } 591 } 592 593 /** 594 * Subset of link properties coming from netlink. 595 * Currently includes IPv4 and IPv6 addresses. In the future will also include IPv6 DNS servers 596 * and domains obtained from router advertisements (RFC 6106). 597 */ 598 private NetlinkTracker mNetlinkTracker; 599 600 private IpReachabilityMonitor mIpReachabilityMonitor; 601 602 private AlarmManager mAlarmManager; 603 private PendingIntent mScanIntent; 604 private PendingIntent mDriverStopIntent; 605 private PendingIntent mPnoIntent; 606 607 private int mDisconnectedPnoAlarmCount = 0; 608 /* Tracks current frequency mode */ 609 private AtomicInteger mFrequencyBand = new AtomicInteger(WifiManager.WIFI_FREQUENCY_BAND_AUTO); 610 611 /* Tracks if we are filtering Multicast v4 packets. Default is to filter. */ 612 private AtomicBoolean mFilteringMulticastV4Packets = new AtomicBoolean(true); 613 614 // Channel for sending replies. 615 private AsyncChannel mReplyChannel = new AsyncChannel(); 616 617 private WifiP2pServiceImpl mWifiP2pServiceImpl; 618 619 // Used to initiate a connection with WifiP2pService 620 private AsyncChannel mWifiP2pChannel; 621 private AsyncChannel mWifiApConfigChannel; 622 623 private WifiScanner mWifiScanner; 624 625 private int mConnectionRequests = 0; 626 private WifiNetworkFactory mNetworkFactory; 627 private UntrustedWifiNetworkFactory mUntrustedNetworkFactory; 628 private WifiNetworkAgent mNetworkAgent; 629 630 private String[] mWhiteListedSsids = null; 631 632 private byte[] mRssiRanges; 633 634 // Keep track of various statistics, for retrieval by System Apps, i.e. under @SystemApi 635 // We should really persist that into the networkHistory.txt file, and read it back when 636 // WifiStateMachine starts up 637 private WifiConnectionStatistics mWifiConnectionStatistics = new WifiConnectionStatistics(); 638 639 // Used to filter out requests we couldn't possibly satisfy. 640 private final NetworkCapabilities mNetworkCapabilitiesFilter = new NetworkCapabilities(); 641 642 /* The base for wifi message types */ 643 static final int BASE = Protocol.BASE_WIFI; 644 /* Start the supplicant */ 645 static final int CMD_START_SUPPLICANT = BASE + 11; 646 /* Stop the supplicant */ 647 static final int CMD_STOP_SUPPLICANT = BASE + 12; 648 /* Start the driver */ 649 static final int CMD_START_DRIVER = BASE + 13; 650 /* Stop the driver */ 651 static final int CMD_STOP_DRIVER = BASE + 14; 652 /* Indicates Static IP succeeded */ 653 static final int CMD_STATIC_IP_SUCCESS = BASE + 15; 654 /* Indicates Static IP failed */ 655 static final int CMD_STATIC_IP_FAILURE = BASE + 16; 656 /* Indicates supplicant stop failed */ 657 static final int CMD_STOP_SUPPLICANT_FAILED = BASE + 17; 658 /* A delayed message sent to start driver when it fail to come up */ 659 static final int CMD_DRIVER_START_TIMED_OUT = BASE + 19; 660 661 /* Start the soft access point */ 662 static final int CMD_START_AP = BASE + 21; 663 /* Indicates soft ap start succeeded */ 664 static final int CMD_START_AP_SUCCESS = BASE + 22; 665 /* Indicates soft ap start failed */ 666 static final int CMD_START_AP_FAILURE = BASE + 23; 667 /* Stop the soft access point */ 668 static final int CMD_STOP_AP = BASE + 24; 669 /* Set the soft access point configuration */ 670 static final int CMD_SET_AP_CONFIG = BASE + 25; 671 /* Soft access point configuration set completed */ 672 static final int CMD_SET_AP_CONFIG_COMPLETED = BASE + 26; 673 /* Request the soft access point configuration */ 674 static final int CMD_REQUEST_AP_CONFIG = BASE + 27; 675 /* Response to access point configuration request */ 676 static final int CMD_RESPONSE_AP_CONFIG = BASE + 28; 677 /* Invoked when getting a tether state change notification */ 678 static final int CMD_TETHER_STATE_CHANGE = BASE + 29; 679 /* A delayed message sent to indicate tether state change failed to arrive */ 680 static final int CMD_TETHER_NOTIFICATION_TIMED_OUT = BASE + 30; 681 682 static final int CMD_BLUETOOTH_ADAPTER_STATE_CHANGE = BASE + 31; 683 684 /* Supplicant commands */ 685 /* Is supplicant alive ? */ 686 static final int CMD_PING_SUPPLICANT = BASE + 51; 687 /* Add/update a network configuration */ 688 static final int CMD_ADD_OR_UPDATE_NETWORK = BASE + 52; 689 /* Delete a network */ 690 static final int CMD_REMOVE_NETWORK = BASE + 53; 691 /* Enable a network. The device will attempt a connection to the given network. */ 692 static final int CMD_ENABLE_NETWORK = BASE + 54; 693 /* Enable all networks */ 694 static final int CMD_ENABLE_ALL_NETWORKS = BASE + 55; 695 /* Blacklist network. De-prioritizes the given BSSID for connection. */ 696 static final int CMD_BLACKLIST_NETWORK = BASE + 56; 697 /* Clear the blacklist network list */ 698 static final int CMD_CLEAR_BLACKLIST = BASE + 57; 699 /* Save configuration */ 700 static final int CMD_SAVE_CONFIG = BASE + 58; 701 /* Get configured networks */ 702 static final int CMD_GET_CONFIGURED_NETWORKS = BASE + 59; 703 /* Get available frequencies */ 704 static final int CMD_GET_CAPABILITY_FREQ = BASE + 60; 705 /* Get adaptors */ 706 static final int CMD_GET_SUPPORTED_FEATURES = BASE + 61; 707 /* Get configured networks with real preSharedKey */ 708 static final int CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS = BASE + 62; 709 /* Get Link Layer Stats thru HAL */ 710 static final int CMD_GET_LINK_LAYER_STATS = BASE + 63; 711 /* Supplicant commands after driver start*/ 712 /* Initiate a scan */ 713 static final int CMD_START_SCAN = BASE + 71; 714 /* Set operational mode. CONNECT, SCAN ONLY, SCAN_ONLY with Wi-Fi off mode */ 715 static final int CMD_SET_OPERATIONAL_MODE = BASE + 72; 716 /* Disconnect from a network */ 717 static final int CMD_DISCONNECT = BASE + 73; 718 /* Reconnect to a network */ 719 static final int CMD_RECONNECT = BASE + 74; 720 /* Reassociate to a network */ 721 static final int CMD_REASSOCIATE = BASE + 75; 722 /* Get Connection Statistis */ 723 static final int CMD_GET_CONNECTION_STATISTICS = BASE + 76; 724 725 /* Controls suspend mode optimizations 726 * 727 * When high perf mode is enabled, suspend mode optimizations are disabled 728 * 729 * When high perf mode is disabled, suspend mode optimizations are enabled 730 * 731 * Suspend mode optimizations include: 732 * - packet filtering 733 * - turn off roaming 734 * - DTIM wake up settings 735 */ 736 static final int CMD_SET_HIGH_PERF_MODE = BASE + 77; 737 /* Set the country code */ 738 static final int CMD_SET_COUNTRY_CODE = BASE + 80; 739 /* Enables RSSI poll */ 740 static final int CMD_ENABLE_RSSI_POLL = BASE + 82; 741 /* RSSI poll */ 742 static final int CMD_RSSI_POLL = BASE + 83; 743 /* Set up packet filtering */ 744 static final int CMD_START_PACKET_FILTERING = BASE + 84; 745 /* Clear packet filter */ 746 static final int CMD_STOP_PACKET_FILTERING = BASE + 85; 747 /* Enable suspend mode optimizations in the driver */ 748 static final int CMD_SET_SUSPEND_OPT_ENABLED = BASE + 86; 749 /* Delayed NETWORK_DISCONNECT */ 750 static final int CMD_DELAYED_NETWORK_DISCONNECT = BASE + 87; 751 /* When there are no saved networks, we do a periodic scan to notify user of 752 * an open network */ 753 static final int CMD_NO_NETWORKS_PERIODIC_SCAN = BASE + 88; 754 /* Test network Disconnection NETWORK_DISCONNECT */ 755 static final int CMD_TEST_NETWORK_DISCONNECT = BASE + 89; 756 757 private int testNetworkDisconnectCounter = 0; 758 759 /* arg1 values to CMD_STOP_PACKET_FILTERING and CMD_START_PACKET_FILTERING */ 760 static final int MULTICAST_V6 = 1; 761 static final int MULTICAST_V4 = 0; 762 763 /* Set the frequency band */ 764 static final int CMD_SET_FREQUENCY_BAND = BASE + 90; 765 /* Enable TDLS on a specific MAC address */ 766 static final int CMD_ENABLE_TDLS = BASE + 92; 767 /* DHCP/IP configuration watchdog */ 768 static final int CMD_OBTAINING_IP_ADDRESS_WATCHDOG_TIMER = BASE + 93; 769 770 /** 771 * Watchdog for protecting against b/16823537 772 * Leave time for 4-way handshake to succeed 773 */ 774 static final int ROAM_GUARD_TIMER_MSEC = 15000; 775 776 int roamWatchdogCount = 0; 777 /* Roam state watchdog */ 778 static final int CMD_ROAM_WATCHDOG_TIMER = BASE + 94; 779 /* Screen change intent handling */ 780 static final int CMD_SCREEN_STATE_CHANGED = BASE + 95; 781 782 /* Disconnecting state watchdog */ 783 static final int CMD_DISCONNECTING_WATCHDOG_TIMER = BASE + 96; 784 785 /* Remove a packages associated configrations */ 786 static final int CMD_REMOVE_APP_CONFIGURATIONS = BASE + 97; 787 788 /* Disable an ephemeral network */ 789 static final int CMD_DISABLE_EPHEMERAL_NETWORK = BASE + 98; 790 791 /* Get matching network */ 792 static final int CMD_GET_MATCHING_CONFIG = BASE + 99; 793 794 /* alert from firmware */ 795 static final int CMD_FIRMWARE_ALERT = BASE + 100; 796 797 /* SIM is removed; reset any cached data for it */ 798 static final int CMD_RESET_SIM_NETWORKS = BASE + 101; 799 800 /** 801 * Make this timer 40 seconds, which is about the normal DHCP timeout. 802 * In no valid case, the WiFiStateMachine should remain stuck in ObtainingIpAddress 803 * for more than 30 seconds. 804 */ 805 static final int OBTAINING_IP_ADDRESS_GUARD_TIMER_MSEC = 40000; 806 807 int obtainingIpWatchdogCount = 0; 808 809 /* Commands from/to the SupplicantStateTracker */ 810 /* Reset the supplicant state tracker */ 811 static final int CMD_RESET_SUPPLICANT_STATE = BASE + 111; 812 813 int disconnectingWatchdogCount = 0; 814 static final int DISCONNECTING_GUARD_TIMER_MSEC = 5000; 815 816 /* P2p commands */ 817 /* We are ok with no response here since we wont do much with it anyway */ 818 public static final int CMD_ENABLE_P2P = BASE + 131; 819 /* In order to shut down supplicant cleanly, we wait till p2p has 820 * been disabled */ 821 public static final int CMD_DISABLE_P2P_REQ = BASE + 132; 822 public static final int CMD_DISABLE_P2P_RSP = BASE + 133; 823 824 public static final int CMD_BOOT_COMPLETED = BASE + 134; 825 826 /* We now have a valid IP configuration. */ 827 static final int CMD_IP_CONFIGURATION_SUCCESSFUL = BASE + 138; 828 /* We no longer have a valid IP configuration. */ 829 static final int CMD_IP_CONFIGURATION_LOST = BASE + 139; 830 /* Link configuration (IP address, DNS, ...) changes notified via netlink */ 831 static final int CMD_UPDATE_LINKPROPERTIES = BASE + 140; 832 833 /* Supplicant is trying to associate to a given BSSID */ 834 static final int CMD_TARGET_BSSID = BASE + 141; 835 836 /* Reload all networks and reconnect */ 837 static final int CMD_RELOAD_TLS_AND_RECONNECT = BASE + 142; 838 839 static final int CMD_AUTO_CONNECT = BASE + 143; 840 841 private static final int NETWORK_STATUS_UNWANTED_DISCONNECT = 0; 842 private static final int NETWORK_STATUS_UNWANTED_VALIDATION_FAILED = 1; 843 private static final int NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN = 2; 844 845 static final int CMD_UNWANTED_NETWORK = BASE + 144; 846 847 static final int CMD_AUTO_ROAM = BASE + 145; 848 849 static final int CMD_AUTO_SAVE_NETWORK = BASE + 146; 850 851 static final int CMD_ASSOCIATED_BSSID = BASE + 147; 852 853 static final int CMD_NETWORK_STATUS = BASE + 148; 854 855 /* A layer 3 neighbor on the Wi-Fi link became unreachable. */ 856 static final int CMD_IP_REACHABILITY_LOST = BASE + 149; 857 858 /* Remove a packages associated configrations */ 859 static final int CMD_REMOVE_USER_CONFIGURATIONS = BASE + 152; 860 861 static final int CMD_ACCEPT_UNVALIDATED = BASE + 153; 862 863 /* used to restart PNO when it was stopped due to association attempt */ 864 static final int CMD_RESTART_AUTOJOIN_OFFLOAD = BASE + 154; 865 866 static int mRestartAutoJoinOffloadCounter = 0; 867 868 /* used to log if PNO was started */ 869 static final int CMD_STARTED_PNO_DBG = BASE + 155; 870 871 static final int CMD_PNO_NETWORK_FOUND = BASE + 156; 872 873 /* used to log if PNO was started */ 874 static final int CMD_UPDATE_ASSOCIATED_SCAN_PERMISSION = BASE + 158; 875 876 /* used to log if GSCAN was started */ 877 static final int CMD_STARTED_GSCAN_DBG = BASE + 159; 878 879 /* used to offload sending IP packet */ 880 static final int CMD_START_IP_PACKET_OFFLOAD = BASE + 160; 881 882 /* used to stop offload sending IP packet */ 883 static final int CMD_STOP_IP_PACKET_OFFLOAD = BASE + 161; 884 885 /* used to start rssi monitoring in hw */ 886 static final int CMD_START_RSSI_MONITORING_OFFLOAD = BASE + 162; 887 888 /* used to stop rssi moniroting in hw */ 889 static final int CMD_STOP_RSSI_MONITORING_OFFLOAD = BASE + 163; 890 891 /* used to indicated RSSI threshold breach in hw */ 892 static final int CMD_RSSI_THRESHOLD_BREACH = BASE + 164; 893 894 /* used to indicate that the foreground user was switched */ 895 static final int CMD_USER_SWITCH = BASE + 165; 896 897 898 /* Wifi state machine modes of operation */ 899 /* CONNECT_MODE - connect to any 'known' AP when it becomes available */ 900 public static final int CONNECT_MODE = 1; 901 /* SCAN_ONLY_MODE - don't connect to any APs; scan, but only while apps hold lock */ 902 public static final int SCAN_ONLY_MODE = 2; 903 /* SCAN_ONLY_WITH_WIFI_OFF - scan, but don't connect to any APs */ 904 public static final int SCAN_ONLY_WITH_WIFI_OFF_MODE = 3; 905 906 private static final int SUCCESS = 1; 907 private static final int FAILURE = -1; 908 909 /* Tracks if suspend optimizations need to be disabled by DHCP, 910 * screen or due to high perf mode. 911 * When any of them needs to disable it, we keep the suspend optimizations 912 * disabled 913 */ 914 private int mSuspendOptNeedsDisabled = 0; 915 916 private static final int SUSPEND_DUE_TO_DHCP = 1; 917 private static final int SUSPEND_DUE_TO_HIGH_PERF = 1 << 1; 918 private static final int SUSPEND_DUE_TO_SCREEN = 1 << 2; 919 920 /* Tracks if user has enabled suspend optimizations through settings */ 921 private AtomicBoolean mUserWantsSuspendOpt = new AtomicBoolean(true); 922 923 /** 924 * Default framework scan interval in milliseconds. This is used in the scenario in which 925 * wifi chipset does not support background scanning to set up a 926 * periodic wake up scan so that the device can connect to a new access 927 * point on the move. {@link Settings.Global#WIFI_FRAMEWORK_SCAN_INTERVAL_MS} can 928 * override this. 929 */ 930 private final int mDefaultFrameworkScanIntervalMs; 931 932 933 /** 934 * Scan period for the NO_NETWORKS_PERIIDOC_SCAN_FEATURE 935 */ 936 private final int mNoNetworksPeriodicScan; 937 938 /** 939 * Supplicant scan interval in milliseconds. 940 * Comes from {@link Settings.Global#WIFI_SUPPLICANT_SCAN_INTERVAL_MS} or 941 * from the default config if the setting is not set 942 */ 943 private long mSupplicantScanIntervalMs; 944 945 /** 946 * timeStamp of last full band scan we perfoemed for autojoin while connected with screen lit 947 */ 948 private long lastFullBandConnectedTimeMilli; 949 950 /** 951 * time interval to the next full band scan we will perform for 952 * autojoin while connected with screen lit 953 */ 954 private long fullBandConnectedTimeIntervalMilli; 955 956 /** 957 * max time interval to the next full band scan we will perform for 958 * autojoin while connected with screen lit 959 * Max time is 5 minutes 960 */ 961 private static final long maxFullBandConnectedTimeIntervalMilli = 1000 * 60 * 5; 962 963 /** 964 * Minimum time interval between enabling all networks. 965 * A device can end up repeatedly connecting to a bad network on screen on/off toggle 966 * due to enabling every time. We add a threshold to avoid this. 967 */ 968 private static final int MIN_INTERVAL_ENABLE_ALL_NETWORKS_MS = 10 * 60 * 1000; /* 10 minutes */ 969 private long mLastEnableAllNetworksTime; 970 971 int mRunningBeaconCount = 0; 972 973 974 // config option that indicate whether or not to reset country code to default when 975 // cellular radio indicates country code loss 976 private boolean mRevertCountryCodeOnCellularLoss = false; 977 978 private String mDefaultCountryCode; 979 980 private static final String BOOT_DEFAULT_WIFI_COUNTRY_CODE = "ro.boot.wificountrycode"; 981 982 // Supplicant doesn't like setting the same country code multiple times (it may drop 983 // currently connected network), so we save the current device set country code here to avoid 984 // redundency 985 private String mDriverSetCountryCode = null; 986 987 /* Default parent state */ 988 private State mDefaultState = new DefaultState(); 989 /* Temporary initial state */ 990 private State mInitialState = new InitialState(); 991 /* Driver loaded, waiting for supplicant to start */ 992 private State mSupplicantStartingState = new SupplicantStartingState(); 993 /* Driver loaded and supplicant ready */ 994 private State mSupplicantStartedState = new SupplicantStartedState(); 995 /* Waiting for supplicant to stop and monitor to exit */ 996 private State mSupplicantStoppingState = new SupplicantStoppingState(); 997 /* Driver start issued, waiting for completed event */ 998 private State mDriverStartingState = new DriverStartingState(); 999 /* Driver started */ 1000 private State mDriverStartedState = new DriverStartedState(); 1001 /* Wait until p2p is disabled 1002 * This is a special state which is entered right after we exit out of DriverStartedState 1003 * before transitioning to another state. 1004 */ 1005 private State mWaitForP2pDisableState = new WaitForP2pDisableState(); 1006 /* Driver stopping */ 1007 private State mDriverStoppingState = new DriverStoppingState(); 1008 /* Driver stopped */ 1009 private State mDriverStoppedState = new DriverStoppedState(); 1010 /* Scan for networks, no connection will be established */ 1011 private State mScanModeState = new ScanModeState(); 1012 /* Connecting to an access point */ 1013 private State mConnectModeState = new ConnectModeState(); 1014 /* Connected at 802.11 (L2) level */ 1015 private State mL2ConnectedState = new L2ConnectedState(); 1016 /* fetching IP after connection to access point (assoc+auth complete) */ 1017 private State mObtainingIpState = new ObtainingIpState(); 1018 /* Connected with IP addr */ 1019 private State mConnectedState = new ConnectedState(); 1020 /* Roaming */ 1021 private State mRoamingState = new RoamingState(); 1022 /* disconnect issued, waiting for network disconnect confirmation */ 1023 private State mDisconnectingState = new DisconnectingState(); 1024 /* Network is not connected, supplicant assoc+auth is not complete */ 1025 private State mDisconnectedState = new DisconnectedState(); 1026 /* Waiting for WPS to be completed*/ 1027 private State mWpsRunningState = new WpsRunningState(); 1028 1029 /* Soft ap is starting up */ 1030 private State mSoftApStartingState = new SoftApStartingState(); 1031 /* Soft ap is running */ 1032 private State mSoftApStartedState = new SoftApStartedState(); 1033 /* Soft ap is running and we are waiting for tether notification */ 1034 private State mTetheringState = new TetheringState(); 1035 /* Soft ap is running and we are tethered through connectivity service */ 1036 private State mTetheredState = new TetheredState(); 1037 /* Waiting for untether confirmation before stopping soft Ap */ 1038 private State mUntetheringState = new UntetheringState(); 1039 1040 1041 1042 private class WifiScanListener implements WifiScanner.ScanListener { 1043 @Override 1044 public void onSuccess() { 1045 Log.e(TAG, "WifiScanListener onSuccess"); 1046 }; 1047 @Override 1048 public void onFailure(int reason, String description) { 1049 Log.e(TAG, "WifiScanListener onFailure"); 1050 }; 1051 @Override 1052 public void onPeriodChanged(int periodInMs) { 1053 Log.e(TAG, "WifiScanListener onPeriodChanged period=" + periodInMs); 1054 } 1055 @Override 1056 public void onResults(WifiScanner.ScanData[] results) { 1057 Log.e(TAG, "WifiScanListener onResults2 " + results.length); 1058 } 1059 @Override 1060 public void onFullResult(ScanResult fullScanResult) { 1061 Log.e(TAG, "WifiScanListener onFullResult " + fullScanResult.toString()); 1062 } 1063 1064 WifiScanListener() {} 1065 } 1066 1067 WifiScanListener mWifiScanListener = new WifiScanListener(); 1068 1069 1070 private class TetherStateChange { 1071 ArrayList<String> available; 1072 ArrayList<String> active; 1073 1074 TetherStateChange(ArrayList<String> av, ArrayList<String> ac) { 1075 available = av; 1076 active = ac; 1077 } 1078 } 1079 1080 public static class SimAuthRequestData { 1081 int networkId; 1082 int protocol; 1083 String ssid; 1084 // EAP-SIM: data[] contains the 3 rand, one for each of the 3 challenges 1085 // EAP-AKA/AKA': data[] contains rand & authn couple for the single challenge 1086 String[] data; 1087 } 1088 1089 /** 1090 * One of {@link WifiManager#WIFI_STATE_DISABLED}, 1091 * {@link WifiManager#WIFI_STATE_DISABLING}, 1092 * {@link WifiManager#WIFI_STATE_ENABLED}, 1093 * {@link WifiManager#WIFI_STATE_ENABLING}, 1094 * {@link WifiManager#WIFI_STATE_UNKNOWN} 1095 */ 1096 private final AtomicInteger mWifiState = new AtomicInteger(WIFI_STATE_DISABLED); 1097 1098 /** 1099 * One of {@link WifiManager#WIFI_AP_STATE_DISABLED}, 1100 * {@link WifiManager#WIFI_AP_STATE_DISABLING}, 1101 * {@link WifiManager#WIFI_AP_STATE_ENABLED}, 1102 * {@link WifiManager#WIFI_AP_STATE_ENABLING}, 1103 * {@link WifiManager#WIFI_AP_STATE_FAILED} 1104 */ 1105 private final AtomicInteger mWifiApState = new AtomicInteger(WIFI_AP_STATE_DISABLED); 1106 1107 private static final int SCAN_REQUEST = 0; 1108 private static final String ACTION_START_SCAN = 1109 "com.android.server.WifiManager.action.START_SCAN"; 1110 1111 private static final int PNO_START_REQUEST = 0; 1112 private static final String ACTION_START_PNO = 1113 "com.android.server.WifiManager.action.START_PNO"; 1114 1115 /** 1116 * Keep track of whether WIFI is running. 1117 */ 1118 private boolean mIsRunning = false; 1119 1120 /** 1121 * Keep track of whether we last told the battery stats we had started. 1122 */ 1123 private boolean mReportedRunning = false; 1124 1125 /** 1126 * Most recently set source of starting WIFI. 1127 */ 1128 private final WorkSource mRunningWifiUids = new WorkSource(); 1129 1130 /** 1131 * The last reported UIDs that were responsible for starting WIFI. 1132 */ 1133 private final WorkSource mLastRunningWifiUids = new WorkSource(); 1134 1135 private final IBatteryStats mBatteryStats; 1136 1137 private String mTcpBufferSizes = null; 1138 1139 // Used for debug and stats gathering 1140 private static int sScanAlarmIntentCount = 0; 1141 1142 private static final int sFrameworkMinScanIntervalSaneValue = 10000; 1143 1144 private boolean mPnoEnabled; 1145 private boolean mLazyRoamEnabled; 1146 private long mGScanStartTimeMilli; 1147 private long mGScanPeriodMilli; 1148 1149 private FrameworkFacade mFacade; 1150 1151 public WifiStateMachine(Context context, WifiTrafficPoller trafficPoller, 1152 FrameworkFacade facade, WifiMetrics wifiMetrics) { 1153 super("WifiStateMachine"); 1154 mWifiMetrics = wifiMetrics; 1155 mContext = context; 1156 mFacade = facade; 1157 mWifiNative = WifiNative.getWlanNativeInterface(); 1158 1159 // TODO refactor WifiNative use of context out into it's own class 1160 mWifiNative.initContext(mContext); 1161 mInterfaceName = mWifiNative.getInterfaceName(); 1162 mNetworkInfo = new NetworkInfo(ConnectivityManager.TYPE_WIFI, 0, NETWORKTYPE, ""); 1163 mBatteryStats = IBatteryStats.Stub.asInterface(mFacade.getService( 1164 BatteryStats.SERVICE_NAME)); 1165 1166 IBinder b = mFacade.getService(Context.NETWORKMANAGEMENT_SERVICE); 1167 mNwService = INetworkManagementService.Stub.asInterface(b); 1168 1169 mP2pSupported = mContext.getPackageManager().hasSystemFeature( 1170 PackageManager.FEATURE_WIFI_DIRECT); 1171 1172 mWifiConfigStore = new WifiConfigStore(context, this, mWifiNative, facade); 1173 1174 mWifiMonitor = WifiMonitor.getInstance(); 1175 1176 boolean enableFirmwareLogs = mContext.getResources().getBoolean( 1177 R.bool.config_wifi_enable_wifi_firmware_debugging); 1178 1179 if (enableFirmwareLogs) { 1180 mWifiLogger = facade.makeRealLogger(this, mWifiNative); 1181 } else { 1182 mWifiLogger = facade.makeBaseLogger(); 1183 } 1184 1185 mWifiInfo = new WifiInfo(); 1186 mWifiQualifiedNetworkSelector = new WifiQualifiedNetworkSelector( 1187 mWifiConfigStore, mContext, this, mWifiInfo); 1188 mSupplicantStateTracker = mFacade.makeSupplicantStateTracker( 1189 context, this, mWifiConfigStore, getHandler()); 1190 1191 mLinkProperties = new LinkProperties(); 1192 1193 IBinder s1 = mFacade.getService(Context.WIFI_P2P_SERVICE); 1194 mWifiP2pServiceImpl = (WifiP2pServiceImpl) IWifiP2pManager.Stub.asInterface(s1); 1195 1196 mNetworkInfo.setIsAvailable(false); 1197 mLastBssid = null; 1198 mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 1199 mLastSignalLevel = -1; 1200 1201 mNetlinkTracker = new NetlinkTracker(mInterfaceName, new NetlinkTracker.Callback() { 1202 public void update() { 1203 sendMessage(CMD_UPDATE_LINKPROPERTIES); 1204 } 1205 }); 1206 try { 1207 mNwService.registerObserver(mNetlinkTracker); 1208 } catch (RemoteException e) { 1209 loge("Couldn't register netlink tracker: " + e.toString()); 1210 } 1211 1212 mAlarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE); 1213 mScanIntent = getPrivateBroadcast(ACTION_START_SCAN, SCAN_REQUEST); 1214 mPnoIntent = getPrivateBroadcast(ACTION_START_PNO, PNO_START_REQUEST); 1215 1216 // Make sure the interval is not configured less than 10 seconds 1217 int period = mContext.getResources().getInteger( 1218 R.integer.config_wifi_framework_scan_interval); 1219 if (period < sFrameworkMinScanIntervalSaneValue) { 1220 period = sFrameworkMinScanIntervalSaneValue; 1221 } 1222 mDefaultFrameworkScanIntervalMs = period; 1223 1224 mNoNetworksPeriodicScan = mContext.getResources().getInteger( 1225 R.integer.config_wifi_no_network_periodic_scan_interval); 1226 1227 mBackgroundScanSupported = mContext.getResources().getBoolean( 1228 R.bool.config_wifi_background_scan_support); 1229 1230 mPrimaryDeviceType = mContext.getResources().getString( 1231 R.string.config_wifi_p2p_device_type); 1232 1233 mRevertCountryCodeOnCellularLoss = mContext.getResources().getBoolean( 1234 R.bool.config_wifi_revert_country_code_on_cellular_loss); 1235 1236 mDefaultCountryCode = SystemProperties.get(BOOT_DEFAULT_WIFI_COUNTRY_CODE); 1237 if (TextUtils.isEmpty(mDefaultCountryCode) == false) { 1238 mDefaultCountryCode = mDefaultCountryCode.toUpperCase(Locale.ROOT); 1239 } 1240 1241 if (mRevertCountryCodeOnCellularLoss && TextUtils.isEmpty(mDefaultCountryCode)) { 1242 logw("config_wifi_revert_country_code_on_cellular_loss is set, " + 1243 "but there is no default country code!! Resetting ..."); 1244 mRevertCountryCodeOnCellularLoss = false; 1245 } else if (mRevertCountryCodeOnCellularLoss) { 1246 logd("initializing with and will revert to " + mDefaultCountryCode + " on MCC loss"); 1247 } 1248 1249 if (mRevertCountryCodeOnCellularLoss) { 1250 Settings.Global.putString(mContext.getContentResolver(), 1251 Settings.Global.WIFI_COUNTRY_CODE, mDefaultCountryCode); 1252 } 1253 1254 mUserWantsSuspendOpt.set(mFacade.getIntegerSetting(mContext, 1255 Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED, 1) == 1); 1256 1257 mNetworkCapabilitiesFilter.addTransportType(NetworkCapabilities.TRANSPORT_WIFI); 1258 mNetworkCapabilitiesFilter.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 1259 mNetworkCapabilitiesFilter.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 1260 mNetworkCapabilitiesFilter.setLinkUpstreamBandwidthKbps(1024 * 1024); 1261 mNetworkCapabilitiesFilter.setLinkDownstreamBandwidthKbps(1024 * 1024); 1262 // TODO - needs to be a bit more dynamic 1263 mDfltNetworkCapabilities = new NetworkCapabilities(mNetworkCapabilitiesFilter); 1264 1265 mContext.registerReceiver( 1266 new BroadcastReceiver() { 1267 @Override 1268 public void onReceive(Context context, Intent intent) { 1269 ArrayList<String> available = intent.getStringArrayListExtra( 1270 ConnectivityManager.EXTRA_AVAILABLE_TETHER); 1271 ArrayList<String> active = intent.getStringArrayListExtra( 1272 ConnectivityManager.EXTRA_ACTIVE_TETHER); 1273 sendMessage(CMD_TETHER_STATE_CHANGE, new TetherStateChange(available, active)); 1274 } 1275 }, new IntentFilter(ConnectivityManager.ACTION_TETHER_STATE_CHANGED)); 1276 1277 mContext.registerReceiver( 1278 new BroadcastReceiver() { 1279 @Override 1280 public void onReceive(Context context, Intent intent) { 1281 sScanAlarmIntentCount++; // Used for debug only 1282 startScan(SCAN_ALARM_SOURCE, mDelayedScanCounter.incrementAndGet(), null, null); 1283 if (VDBG) 1284 logd("SCAN ALARM -> " + mDelayedScanCounter.get()); 1285 } 1286 }, 1287 new IntentFilter(ACTION_START_SCAN)); 1288 1289 mContext.registerReceiver( 1290 new BroadcastReceiver() { 1291 @Override 1292 public void onReceive(Context context, Intent intent) { 1293 sendMessage(CMD_RESTART_AUTOJOIN_OFFLOAD, 0, 1294 mRestartAutoJoinOffloadCounter, "pno alarm"); 1295 if (DBG) 1296 logd("PNO START ALARM sent"); 1297 } 1298 }, 1299 new IntentFilter(ACTION_START_PNO)); 1300 1301 1302 IntentFilter filter = new IntentFilter(); 1303 filter.addAction(Intent.ACTION_SCREEN_ON); 1304 filter.addAction(Intent.ACTION_SCREEN_OFF); 1305 mContext.registerReceiver( 1306 new BroadcastReceiver() { 1307 @Override 1308 public void onReceive(Context context, Intent intent) { 1309 String action = intent.getAction(); 1310 1311 if (action.equals(Intent.ACTION_SCREEN_ON)) { 1312 sendMessage(CMD_SCREEN_STATE_CHANGED, 1); 1313 } else if (action.equals(Intent.ACTION_SCREEN_OFF)) { 1314 sendMessage(CMD_SCREEN_STATE_CHANGED, 0); 1315 } 1316 } 1317 }, filter); 1318 1319 mContext.getContentResolver().registerContentObserver(Settings.Global.getUriFor( 1320 Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED), false, 1321 new ContentObserver(getHandler()) { 1322 @Override 1323 public void onChange(boolean selfChange) { 1324 mUserWantsSuspendOpt.set(mFacade.getIntegerSetting(mContext, 1325 Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED, 1) == 1); 1326 } 1327 }); 1328 1329 mContext.registerReceiver( 1330 new BroadcastReceiver() { 1331 @Override 1332 public void onReceive(Context context, Intent intent) { 1333 sendMessage(CMD_BOOT_COMPLETED); 1334 } 1335 }, 1336 new IntentFilter(Intent.ACTION_BOOT_COMPLETED)); 1337 1338 mScanResultCache = new LruCache<>(SCAN_RESULT_CACHE_SIZE); 1339 1340 PowerManager powerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); 1341 mWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, getName()); 1342 1343 mSuspendWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "WifiSuspend"); 1344 mSuspendWakeLock.setReferenceCounted(false); 1345 1346 mTcpBufferSizes = mContext.getResources().getString( 1347 com.android.internal.R.string.config_wifi_tcp_buffers); 1348 1349 addState(mDefaultState); 1350 addState(mInitialState, mDefaultState); 1351 addState(mSupplicantStartingState, mDefaultState); 1352 addState(mSupplicantStartedState, mDefaultState); 1353 addState(mDriverStartingState, mSupplicantStartedState); 1354 addState(mDriverStartedState, mSupplicantStartedState); 1355 addState(mScanModeState, mDriverStartedState); 1356 addState(mConnectModeState, mDriverStartedState); 1357 addState(mL2ConnectedState, mConnectModeState); 1358 addState(mObtainingIpState, mL2ConnectedState); 1359 addState(mConnectedState, mL2ConnectedState); 1360 addState(mRoamingState, mL2ConnectedState); 1361 addState(mDisconnectingState, mConnectModeState); 1362 addState(mDisconnectedState, mConnectModeState); 1363 addState(mWpsRunningState, mConnectModeState); 1364 addState(mWaitForP2pDisableState, mSupplicantStartedState); 1365 addState(mDriverStoppingState, mSupplicantStartedState); 1366 addState(mDriverStoppedState, mSupplicantStartedState); 1367 addState(mSupplicantStoppingState, mDefaultState); 1368 addState(mSoftApStartingState, mDefaultState); 1369 addState(mSoftApStartedState, mDefaultState); 1370 addState(mTetheringState, mSoftApStartedState); 1371 addState(mTetheredState, mSoftApStartedState); 1372 addState(mUntetheringState, mSoftApStartedState); 1373 1374 setInitialState(mInitialState); 1375 1376 setLogRecSize(ActivityManager.isLowRamDeviceStatic() ? 100 : 3000); 1377 setLogOnlyTransitions(false); 1378 if (VDBG) setDbg(true); 1379 1380 //start the state machine 1381 start(); 1382 1383 mWifiMonitor.registerHandler(mInterfaceName, CMD_TARGET_BSSID, getHandler()); 1384 mWifiMonitor.registerHandler(mInterfaceName, CMD_ASSOCIATED_BSSID, getHandler()); 1385 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.ANQP_DONE_EVENT, getHandler()); 1386 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.ASSOCIATION_REJECTION_EVENT, 1387 getHandler()); 1388 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.AUTHENTICATION_FAILURE_EVENT, 1389 getHandler()); 1390 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.DRIVER_HUNG_EVENT, getHandler()); 1391 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.GAS_QUERY_DONE_EVENT, getHandler()); 1392 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.GAS_QUERY_START_EVENT, 1393 getHandler()); 1394 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.HS20_DEAUTH_EVENT, getHandler()); 1395 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.HS20_REMEDIATION_EVENT, 1396 getHandler()); 1397 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.NETWORK_CONNECTION_EVENT, 1398 getHandler()); 1399 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.NETWORK_DISCONNECTION_EVENT, 1400 getHandler()); 1401 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.RX_HS20_ANQP_ICON_EVENT, 1402 getHandler()); 1403 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SCAN_FAILED_EVENT, getHandler()); 1404 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SCAN_RESULTS_EVENT, getHandler()); 1405 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SSID_REENABLED, getHandler()); 1406 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SSID_TEMP_DISABLED, getHandler()); 1407 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_CONNECTION_EVENT, getHandler()); 1408 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_DISCONNECTION_EVENT, 1409 getHandler()); 1410 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT, 1411 getHandler()); 1412 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_REQUEST_IDENTITY, getHandler()); 1413 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_REQUEST_SIM_AUTH, getHandler()); 1414 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_FAIL_EVENT, getHandler()); 1415 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_OVERLAP_EVENT, getHandler()); 1416 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_SUCCESS_EVENT, getHandler()); 1417 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_TIMEOUT_EVENT, getHandler()); 1418 1419 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 1420 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1421 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_DISABLED); 1422 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1423 } 1424 1425 PendingIntent getPrivateBroadcast(String action, int requestCode) { 1426 Intent intent = new Intent(action, null); 1427 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1428 intent.setPackage("android"); 1429 return mFacade.getBroadcast(mContext, requestCode, intent, 0); 1430 } 1431 1432 private int mVerboseLoggingLevel = 0; 1433 1434 int getVerboseLoggingLevel() { 1435 return mVerboseLoggingLevel; 1436 } 1437 1438 void enableVerboseLogging(int verbose) { 1439 mVerboseLoggingLevel = verbose; 1440 if (verbose > 0) { 1441 DBG = true; 1442 VDBG = true; 1443 PDBG = true; 1444 mLogMessages = true; 1445 mWifiNative.setSupplicantLogLevel("DEBUG"); 1446 } else { 1447 DBG = false; 1448 VDBG = false; 1449 PDBG = false; 1450 mLogMessages = false; 1451 mWifiNative.setSupplicantLogLevel("INFO"); 1452 } 1453 mWifiLogger.startLogging(mVerboseLoggingLevel > 0); 1454 mWifiMonitor.enableVerboseLogging(verbose); 1455 mWifiNative.enableVerboseLogging(verbose); 1456 mWifiConfigStore.enableVerboseLogging(verbose); 1457 mSupplicantStateTracker.enableVerboseLogging(verbose); 1458 mWifiQualifiedNetworkSelector.enableVerboseLogging(verbose); 1459 } 1460 1461 public void setHalBasedAutojoinOffload(int enabled) { 1462 // Shoult be used for debug only, triggered form developper settings 1463 // enabling HAl based PNO dynamically is not safe and not a normal operation 1464 mHalBasedPnoEnableInDevSettings = enabled > 0; 1465 mWifiConfigStore.enableHalBasedPno.set(mHalBasedPnoEnableInDevSettings); 1466 mWifiConfigStore.enableSsidWhitelist.set(mHalBasedPnoEnableInDevSettings); 1467 sendMessage(CMD_DISCONNECT); 1468 } 1469 1470 int getHalBasedAutojoinOffload() { 1471 return mHalBasedPnoEnableInDevSettings ? 1 : 0; 1472 } 1473 1474 boolean useHalBasedAutoJoinOffload() { 1475 // all three settings need to be true: 1476 // - developper settings switch 1477 // - driver support 1478 // - config option 1479 return mHalBasedPnoEnableInDevSettings 1480 && mHalBasedPnoDriverSupported 1481 && mWifiConfigStore.enableHalBasedPno.get(); 1482 } 1483 1484 boolean allowFullBandScanAndAssociated() { 1485 1486 if (!getEnableAutoJoinWhenAssociated()) { 1487 if (DBG) { 1488 Log.e(TAG, "allowFullBandScanAndAssociated: " 1489 + " enableAutoJoinWhenAssociated : disallow"); 1490 } 1491 return false; 1492 } 1493 1494 if (mWifiInfo.txSuccessRate > 1495 mWifiConfigStore.maxTxPacketForFullScans 1496 || mWifiInfo.rxSuccessRate > 1497 mWifiConfigStore.maxRxPacketForFullScans) { 1498 if (DBG) { 1499 Log.e(TAG, "allowFullBandScanAndAssociated: packet rate tx" 1500 + mWifiInfo.txSuccessRate + " rx " 1501 + mWifiInfo.rxSuccessRate 1502 + " allow scan with traffic " + getAllowScansWithTraffic()); 1503 } 1504 // Too much traffic at the interface, hence no full band scan 1505 if (getAllowScansWithTraffic() == 0) { 1506 return false; 1507 } 1508 } 1509 1510 if (getCurrentState() != mConnectedState) { 1511 if (DBG) { 1512 Log.e(TAG, "allowFullBandScanAndAssociated: getCurrentState() : disallow"); 1513 } 1514 return false; 1515 } 1516 1517 return true; 1518 } 1519 1520 long mLastScanPermissionUpdate = 0; 1521 boolean mConnectedModeGScanOffloadStarted = false; 1522 // Don't do a G-scan enable/re-enable cycle more than once within 20seconds 1523 // The function updateAssociatedScanPermission() can be called quite frequently, hence 1524 // we want to throttle the GScan Stop->Start transition 1525 static final long SCAN_PERMISSION_UPDATE_THROTTLE_MILLI = 20000; 1526 void updateAssociatedScanPermission() { 1527 1528 if (useHalBasedAutoJoinOffload()) { 1529 boolean allowed = allowFullBandScanAndAssociated(); 1530 1531 long now = System.currentTimeMillis(); 1532 if (mConnectedModeGScanOffloadStarted && !allowed) { 1533 if (DBG) { 1534 Log.e(TAG, " useHalBasedAutoJoinOffload stop offload"); 1535 } 1536 stopPnoOffload(); 1537 stopGScan(" useHalBasedAutoJoinOffload"); 1538 } 1539 if (!mConnectedModeGScanOffloadStarted && allowed) { 1540 if ((now - mLastScanPermissionUpdate) > SCAN_PERMISSION_UPDATE_THROTTLE_MILLI) { 1541 // Re-enable Gscan offload, this will trigger periodic scans and allow firmware 1542 // to look for 5GHz BSSIDs and better networks 1543 if (DBG) { 1544 Log.e(TAG, " useHalBasedAutoJoinOffload restart offload"); 1545 } 1546 startGScanConnectedModeOffload("updatePermission " 1547 + (now - mLastScanPermissionUpdate) + "ms"); 1548 mLastScanPermissionUpdate = now; 1549 } 1550 } 1551 } 1552 } 1553 1554 private int mAggressiveHandover = 0; 1555 1556 int getAggressiveHandover() { 1557 return mAggressiveHandover; 1558 } 1559 1560 void enableAggressiveHandover(int enabled) { 1561 mAggressiveHandover = enabled; 1562 } 1563 1564 public void clearANQPCache() { 1565 mWifiConfigStore.trimANQPCache(true); 1566 } 1567 1568 public void setAllowScansWithTraffic(int enabled) { 1569 mWifiConfigStore.alwaysEnableScansWhileAssociated.set(enabled); 1570 } 1571 1572 public int getAllowScansWithTraffic() { 1573 return mWifiConfigStore.alwaysEnableScansWhileAssociated.get(); 1574 } 1575 1576 public boolean enableAutoJoinWhenAssociated(boolean enabled) { 1577 boolean old_state = getEnableAutoJoinWhenAssociated(); 1578 mWifiConfigStore.enableAutoJoinWhenAssociated.set(enabled); 1579 if (!old_state && enabled && mScreenOn && getCurrentState() == mConnectedState) { 1580 startDelayedScan(mWifiConfigStore.wifiAssociatedShortScanIntervalMilli.get(), null, 1581 null); 1582 } 1583 return true; 1584 } 1585 1586 public boolean getEnableAutoJoinWhenAssociated() { 1587 return mWifiConfigStore.enableAutoJoinWhenAssociated.get(); 1588 } 1589 /* 1590 * 1591 * Framework scan control 1592 */ 1593 1594 private boolean mAlarmEnabled = false; 1595 1596 private AtomicInteger mDelayedScanCounter = new AtomicInteger(); 1597 1598 private void setScanAlarm(boolean enabled) { 1599 if (PDBG) { 1600 String state; 1601 if (enabled) state = "enabled"; else state = "disabled"; 1602 logd("setScanAlarm " + state 1603 + " defaultperiod " + mDefaultFrameworkScanIntervalMs 1604 + " mBackgroundScanSupported " + mBackgroundScanSupported); 1605 } 1606 if (mBackgroundScanSupported == false) { 1607 // Scan alarm is only used for background scans if they are not 1608 // offloaded to the wifi chipset, hence enable the scan alarm 1609 // gicing us RTC_WAKEUP of backgroundScan is NOT supported 1610 enabled = true; 1611 } 1612 1613 if (enabled == mAlarmEnabled) return; 1614 if (enabled) { 1615 /* Set RTC_WAKEUP alarms if PNO is not supported - because no one is */ 1616 /* going to wake up the host processor to look for access points */ 1617 mAlarmManager.set(AlarmManager.RTC_WAKEUP, 1618 System.currentTimeMillis() + mDefaultFrameworkScanIntervalMs, 1619 mScanIntent); 1620 mAlarmEnabled = true; 1621 } else { 1622 mAlarmManager.cancel(mScanIntent); 1623 mAlarmEnabled = false; 1624 } 1625 } 1626 1627 private void cancelDelayedScan() { 1628 mDelayedScanCounter.incrementAndGet(); 1629 } 1630 1631 private boolean checkAndRestartDelayedScan(int counter, boolean restart, int milli, 1632 ScanSettings settings, WorkSource workSource) { 1633 1634 if (counter != mDelayedScanCounter.get()) { 1635 return false; 1636 } 1637 if (restart) 1638 startDelayedScan(milli, settings, workSource); 1639 return true; 1640 } 1641 1642 private void startDelayedScan(int milli, ScanSettings settings, WorkSource workSource) { 1643 if (milli <= 0) return; 1644 /** 1645 * The cases where the scan alarm should be run are : 1646 * - DisconnectedState && screenOn => used delayed timer 1647 * - DisconnectedState && !screenOn && mBackgroundScanSupported => PNO 1648 * - DisconnectedState && !screenOn && !mBackgroundScanSupported => used RTC_WAKEUP Alarm 1649 * - ConnectedState && screenOn => used delayed timer 1650 */ 1651 1652 mDelayedScanCounter.incrementAndGet(); 1653 if (mScreenOn && 1654 (getCurrentState() == mDisconnectedState 1655 || getCurrentState() == mConnectedState)) { 1656 Bundle bundle = new Bundle(); 1657 bundle.putParcelable(CUSTOMIZED_SCAN_SETTING, settings); 1658 bundle.putParcelable(CUSTOMIZED_SCAN_WORKSOURCE, workSource); 1659 bundle.putLong(SCAN_REQUEST_TIME, System.currentTimeMillis()); 1660 sendMessageDelayed(CMD_START_SCAN, SCAN_ALARM_SOURCE, 1661 mDelayedScanCounter.get(), bundle, milli); 1662 if (DBG) logd("startDelayedScan send -> " + mDelayedScanCounter + " milli " + milli); 1663 } else if (mBackgroundScanSupported == false 1664 && !mScreenOn && getCurrentState() == mDisconnectedState) { 1665 setScanAlarm(true); 1666 if (DBG) logd("startDelayedScan start scan alarm -> " 1667 + mDelayedScanCounter + " milli " + milli); 1668 } else { 1669 if (DBG) logd("startDelayedScan unhandled -> " 1670 + mDelayedScanCounter + " milli " + milli); 1671 } 1672 } 1673 1674 private boolean setRandomMacOui() { 1675 String oui = mContext.getResources().getString(R.string.config_wifi_random_mac_oui); 1676 if (TextUtils.isEmpty(oui)) { 1677 oui = GOOGLE_OUI; 1678 } 1679 String[] ouiParts = oui.split("-"); 1680 byte[] ouiBytes = new byte[3]; 1681 ouiBytes[0] = (byte) (Integer.parseInt(ouiParts[0], 16) & 0xFF); 1682 ouiBytes[1] = (byte) (Integer.parseInt(ouiParts[1], 16) & 0xFF); 1683 ouiBytes[2] = (byte) (Integer.parseInt(ouiParts[2], 16) & 0xFF); 1684 1685 logd("Setting OUI to " + oui); 1686 return mWifiNative.setScanningMacOui(ouiBytes); 1687 } 1688 1689 /** 1690 * ****************************************************** 1691 * Methods exposed for public use 1692 * ****************************************************** 1693 */ 1694 1695 public Messenger getMessenger() { 1696 return new Messenger(getHandler()); 1697 } 1698 1699 /** 1700 * TODO: doc 1701 */ 1702 public boolean syncPingSupplicant(AsyncChannel channel) { 1703 Message resultMsg = channel.sendMessageSynchronously(CMD_PING_SUPPLICANT); 1704 boolean result = (resultMsg.arg1 != FAILURE); 1705 resultMsg.recycle(); 1706 return result; 1707 } 1708 1709 /** 1710 * When settings allowing making use of untrusted networks change, trigger a scan 1711 * so as to kick of autojoin. 1712 */ 1713 public void startScanForUntrustedSettingChange() { 1714 startScan(SET_ALLOW_UNTRUSTED_SOURCE, 0, null, null); 1715 } 1716 1717 /** 1718 * Initiate a wifi scan. If workSource is not null, blame is given to it, otherwise blame is 1719 * given to callingUid. 1720 * 1721 * @param callingUid The uid initiating the wifi scan. Blame will be given here unless 1722 * workSource is specified. 1723 * @param workSource If not null, blame is given to workSource. 1724 * @param settings Scan settings, see {@link ScanSettings}. 1725 */ 1726 public void startScan(int callingUid, int scanCounter, 1727 ScanSettings settings, WorkSource workSource) { 1728 Bundle bundle = new Bundle(); 1729 bundle.putParcelable(CUSTOMIZED_SCAN_SETTING, settings); 1730 bundle.putParcelable(CUSTOMIZED_SCAN_WORKSOURCE, workSource); 1731 bundle.putLong(SCAN_REQUEST_TIME, System.currentTimeMillis()); 1732 sendMessage(CMD_START_SCAN, callingUid, scanCounter, bundle); 1733 } 1734 1735 // called from BroadcastListener 1736 1737 /** 1738 * Start reading new scan data 1739 * Data comes in as: 1740 * "scancount=5\n" 1741 * "nextcount=5\n" 1742 * "apcount=3\n" 1743 * "trunc\n" (optional) 1744 * "bssid=...\n" 1745 * "ssid=...\n" 1746 * "freq=...\n" (in Mhz) 1747 * "level=...\n" 1748 * "dist=...\n" (in cm) 1749 * "distsd=...\n" (standard deviation, in cm) 1750 * "====" 1751 * "bssid=...\n" 1752 * etc 1753 * "====" 1754 * "bssid=...\n" 1755 * etc 1756 * "%%%%" 1757 * "apcount=2\n" 1758 * "bssid=...\n" 1759 * etc 1760 * "%%%% 1761 * etc 1762 * "----" 1763 */ 1764 private final static boolean DEBUG_PARSE = false; 1765 1766 private long mDisconnectedTimeStamp = 0; 1767 1768 public long getDisconnectedTimeMilli() { 1769 if (getCurrentState() == mDisconnectedState 1770 && mDisconnectedTimeStamp != 0) { 1771 long now_ms = System.currentTimeMillis(); 1772 return now_ms - mDisconnectedTimeStamp; 1773 } 1774 return 0; 1775 } 1776 1777 // Keeping track of scan requests 1778 private long lastStartScanTimeStamp = 0; 1779 private long lastScanDuration = 0; 1780 // Last connect attempt is used to prevent scan requests: 1781 // - for a period of 10 seconds after attempting to connect 1782 private long lastConnectAttemptTimestamp = 0; 1783 private Set<Integer> lastScanFreqs = null; 1784 1785 // For debugging, keep track of last message status handling 1786 // TODO, find an equivalent mechanism as part of parent class 1787 private static int MESSAGE_HANDLING_STATUS_PROCESSED = 2; 1788 private static int MESSAGE_HANDLING_STATUS_OK = 1; 1789 private static int MESSAGE_HANDLING_STATUS_UNKNOWN = 0; 1790 private static int MESSAGE_HANDLING_STATUS_REFUSED = -1; 1791 private static int MESSAGE_HANDLING_STATUS_FAIL = -2; 1792 private static int MESSAGE_HANDLING_STATUS_OBSOLETE = -3; 1793 private static int MESSAGE_HANDLING_STATUS_DEFERRED = -4; 1794 private static int MESSAGE_HANDLING_STATUS_DISCARD = -5; 1795 private static int MESSAGE_HANDLING_STATUS_LOOPED = -6; 1796 private static int MESSAGE_HANDLING_STATUS_HANDLING_ERROR = -7; 1797 1798 private int messageHandlingStatus = 0; 1799 1800 //TODO: this is used only to track connection attempts, however the link state and packet per 1801 //TODO: second logic should be folded into that 1802 private boolean checkOrDeferScanAllowed(Message msg) { 1803 long now = System.currentTimeMillis(); 1804 if (lastConnectAttemptTimestamp != 0 && (now - lastConnectAttemptTimestamp) < 10000) { 1805 Message dmsg = Message.obtain(msg); 1806 sendMessageDelayed(dmsg, 11000 - (now - lastConnectAttemptTimestamp)); 1807 return false; 1808 } 1809 return true; 1810 } 1811 1812 private int mOnTime = 0; 1813 private int mTxTime = 0; 1814 private int mRxTime = 0; 1815 private int mOnTimeStartScan = 0; 1816 private int mTxTimeStartScan = 0; 1817 private int mRxTimeStartScan = 0; 1818 private int mOnTimeScan = 0; 1819 private int mTxTimeScan = 0; 1820 private int mRxTimeScan = 0; 1821 private int mOnTimeThisScan = 0; 1822 private int mTxTimeThisScan = 0; 1823 private int mRxTimeThisScan = 0; 1824 1825 private int mOnTimeScreenStateChange = 0; 1826 private int mOnTimeAtLastReport = 0; 1827 private long lastOntimeReportTimeStamp = 0; 1828 private long lastScreenStateChangeTimeStamp = 0; 1829 private int mOnTimeLastReport = 0; 1830 private int mTxTimeLastReport = 0; 1831 private int mRxTimeLastReport = 0; 1832 1833 private long lastLinkLayerStatsUpdate = 0; 1834 1835 String reportOnTime() { 1836 long now = System.currentTimeMillis(); 1837 StringBuilder sb = new StringBuilder(); 1838 // Report stats since last report 1839 int on = mOnTime - mOnTimeLastReport; 1840 mOnTimeLastReport = mOnTime; 1841 int tx = mTxTime - mTxTimeLastReport; 1842 mTxTimeLastReport = mTxTime; 1843 int rx = mRxTime - mRxTimeLastReport; 1844 mRxTimeLastReport = mRxTime; 1845 int period = (int) (now - lastOntimeReportTimeStamp); 1846 lastOntimeReportTimeStamp = now; 1847 sb.append(String.format("[on:%d tx:%d rx:%d period:%d]", on, tx, rx, period)); 1848 // Report stats since Screen State Changed 1849 on = mOnTime - mOnTimeScreenStateChange; 1850 period = (int) (now - lastScreenStateChangeTimeStamp); 1851 sb.append(String.format(" from screen [on:%d period:%d]", on, period)); 1852 return sb.toString(); 1853 } 1854 1855 WifiLinkLayerStats getWifiLinkLayerStats(boolean dbg) { 1856 WifiLinkLayerStats stats = null; 1857 if (mWifiLinkLayerStatsSupported > 0) { 1858 String name = "wlan0"; 1859 stats = mWifiNative.getWifiLinkLayerStats(name); 1860 if (name != null && stats == null && mWifiLinkLayerStatsSupported > 0) { 1861 mWifiLinkLayerStatsSupported -= 1; 1862 } else if (stats != null) { 1863 lastLinkLayerStatsUpdate = System.currentTimeMillis(); 1864 mOnTime = stats.on_time; 1865 mTxTime = stats.tx_time; 1866 mRxTime = stats.rx_time; 1867 mRunningBeaconCount = stats.beacon_rx; 1868 } 1869 } 1870 if (stats == null || mWifiLinkLayerStatsSupported <= 0) { 1871 long mTxPkts = mFacade.getTxPackets(mInterfaceName); 1872 long mRxPkts = mFacade.getRxPackets(mInterfaceName); 1873 mWifiInfo.updatePacketRates(mTxPkts, mRxPkts); 1874 } else { 1875 mWifiInfo.updatePacketRates(stats); 1876 } 1877 if (useHalBasedAutoJoinOffload()) { 1878 sendMessage(CMD_UPDATE_ASSOCIATED_SCAN_PERMISSION); 1879 } 1880 return stats; 1881 } 1882 1883 void startRadioScanStats() { 1884 WifiLinkLayerStats stats = getWifiLinkLayerStats(false); 1885 if (stats != null) { 1886 mOnTimeStartScan = stats.on_time; 1887 mTxTimeStartScan = stats.tx_time; 1888 mRxTimeStartScan = stats.rx_time; 1889 mOnTime = stats.on_time; 1890 mTxTime = stats.tx_time; 1891 mRxTime = stats.rx_time; 1892 } 1893 } 1894 1895 void closeRadioScanStats() { 1896 WifiLinkLayerStats stats = getWifiLinkLayerStats(false); 1897 if (stats != null) { 1898 mOnTimeThisScan = stats.on_time - mOnTimeStartScan; 1899 mTxTimeThisScan = stats.tx_time - mTxTimeStartScan; 1900 mRxTimeThisScan = stats.rx_time - mRxTimeStartScan; 1901 mOnTimeScan += mOnTimeThisScan; 1902 mTxTimeScan += mTxTimeThisScan; 1903 mRxTimeScan += mRxTimeThisScan; 1904 } 1905 } 1906 1907 int startWifiIPPacketOffload(int slot, KeepalivePacketData packetData, int intervalSeconds) { 1908 int ret = mWifiNative.startSendingOffloadedPacket(slot, packetData, intervalSeconds * 1000); 1909 if (ret != 0) { 1910 loge("startWifiIPPacketOffload(" + slot + ", " + intervalSeconds + 1911 "): hardware error " + ret); 1912 return ConnectivityManager.PacketKeepalive.ERROR_HARDWARE_ERROR; 1913 } else { 1914 return ConnectivityManager.PacketKeepalive.SUCCESS; 1915 } 1916 } 1917 1918 int stopWifiIPPacketOffload(int slot) { 1919 int ret = mWifiNative.stopSendingOffloadedPacket(slot); 1920 if (ret != 0) { 1921 loge("stopWifiIPPacketOffload(" + slot + "): hardware error " + ret); 1922 return ConnectivityManager.PacketKeepalive.ERROR_HARDWARE_ERROR; 1923 } else { 1924 return ConnectivityManager.PacketKeepalive.SUCCESS; 1925 } 1926 } 1927 1928 int startRssiMonitoringOffload(byte maxRssi, byte minRssi) { 1929 return mWifiNative.startRssiMonitoring(maxRssi, minRssi, WifiStateMachine.this); 1930 } 1931 1932 int stopRssiMonitoringOffload() { 1933 return mWifiNative.stopRssiMonitoring(); 1934 } 1935 1936 // If workSource is not null, blame is given to it, otherwise blame is given to callingUid. 1937 private void noteScanStart(int callingUid, WorkSource workSource) { 1938 if (lastStartScanTimeStamp != 0) { 1939 noteScanEnd(); 1940 } 1941 long now = System.currentTimeMillis(); 1942 lastStartScanTimeStamp = now; 1943 lastScanDuration = 0; 1944 if (DBG) { 1945 String ts = String.format("[%,d ms]", now); 1946 if (workSource != null) { 1947 if (DBG) logd(ts + " noteScanStart" + workSource.toString() 1948 + " uid " + Integer.toString(callingUid)); 1949 } else { 1950 if (DBG) logd(ts + " noteScanstart no scan source" 1951 + " uid " + Integer.toString(callingUid)); 1952 } 1953 } 1954 startRadioScanStats(); 1955 if (mScanWorkSource == null && ((callingUid != UNKNOWN_SCAN_SOURCE 1956 && callingUid != SCAN_ALARM_SOURCE) 1957 || workSource != null)) { 1958 mScanWorkSource = workSource != null ? workSource : new WorkSource(callingUid); 1959 1960 if (mScanWorkSource.size() == 1 && mScanWorkSource.get(0) < 0) { 1961 // WiFi uses negative UIDs to mean special things. BatteryStats don't care! 1962 mScanWorkSource = new WorkSource(Process.WIFI_UID); 1963 } 1964 1965 try { 1966 mBatteryStats.noteWifiScanStartedFromSource(mScanWorkSource); 1967 } catch (RemoteException e) { 1968 log(e.toString()); 1969 } 1970 } 1971 } 1972 1973 private void noteScanEnd() { 1974 closeRadioScanStats(); 1975 long now = System.currentTimeMillis(); 1976 if (lastStartScanTimeStamp != 0) { 1977 lastScanDuration = now - lastStartScanTimeStamp; 1978 } 1979 lastStartScanTimeStamp = 0; 1980 if (DBG) { 1981 String ts = String.format("[%,d ms]", now); 1982 if (mScanWorkSource != null) 1983 logd(ts + " noteScanEnd " + mScanWorkSource.toString() 1984 + " onTime=" + mOnTimeThisScan); 1985 else 1986 logd(ts + " noteScanEnd no scan source" 1987 + " onTime=" + mOnTimeThisScan); 1988 } 1989 if (mScanWorkSource != null) { 1990 try { 1991 mBatteryStats.noteWifiScanStoppedFromSource(mScanWorkSource); 1992 } catch (RemoteException e) { 1993 log(e.toString()); 1994 } finally { 1995 mScanWorkSource = null; 1996 } 1997 } 1998 } 1999 2000 private void handleScanRequest(int type, Message message) { 2001 ScanSettings settings = null; 2002 WorkSource workSource = null; 2003 2004 // unbundle parameters 2005 Bundle bundle = (Bundle) message.obj; 2006 2007 if (bundle != null) { 2008 settings = bundle.getParcelable(CUSTOMIZED_SCAN_SETTING); 2009 workSource = bundle.getParcelable(CUSTOMIZED_SCAN_WORKSOURCE); 2010 } 2011 2012 Set<Integer> freqs = null; 2013 if (settings != null && settings.channelSet != null) { 2014 freqs = new HashSet<Integer>(); 2015 for (WifiChannel channel : settings.channelSet) { 2016 freqs.add(channel.freqMHz); 2017 } 2018 } 2019 2020 // call wifi native to start the scan 2021 if (startScanNative(type, freqs)) { 2022 // only count battery consumption if scan request is accepted 2023 noteScanStart(message.arg1, workSource); 2024 // a full scan covers everything, clearing scan request buffer 2025 if (freqs == null) 2026 mBufferedScanMsg.clear(); 2027 messageHandlingStatus = MESSAGE_HANDLING_STATUS_OK; 2028 if (workSource != null) { 2029 // External worksource was passed along the scan request, 2030 // hence always send a broadcast 2031 mSendScanResultsBroadcast = true; 2032 } 2033 return; 2034 } 2035 2036 // if reach here, scan request is rejected 2037 2038 if (!mIsScanOngoing) { 2039 // if rejection is NOT due to ongoing scan (e.g. bad scan parameters), 2040 2041 // discard this request and pop up the next one 2042 if (mBufferedScanMsg.size() > 0) { 2043 sendMessage(mBufferedScanMsg.remove()); 2044 } 2045 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 2046 } else if (!mIsFullScanOngoing) { 2047 // if rejection is due to an ongoing scan, and the ongoing one is NOT a full scan, 2048 // buffer the scan request to make sure specified channels will be scanned eventually 2049 if (freqs == null) 2050 mBufferedScanMsg.clear(); 2051 if (mBufferedScanMsg.size() < SCAN_REQUEST_BUFFER_MAX_SIZE) { 2052 Message msg = obtainMessage(CMD_START_SCAN, 2053 message.arg1, message.arg2, bundle); 2054 mBufferedScanMsg.add(msg); 2055 } else { 2056 // if too many requests in buffer, combine them into a single full scan 2057 bundle = new Bundle(); 2058 bundle.putParcelable(CUSTOMIZED_SCAN_SETTING, null); 2059 bundle.putParcelable(CUSTOMIZED_SCAN_WORKSOURCE, workSource); 2060 Message msg = obtainMessage(CMD_START_SCAN, message.arg1, message.arg2, bundle); 2061 mBufferedScanMsg.clear(); 2062 mBufferedScanMsg.add(msg); 2063 } 2064 messageHandlingStatus = MESSAGE_HANDLING_STATUS_LOOPED; 2065 } else { 2066 // mIsScanOngoing and mIsFullScanOngoing 2067 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 2068 } 2069 } 2070 2071 2072 /** 2073 * return true iff scan request is accepted 2074 */ 2075 private boolean startScanNative(int type, Set<Integer> freqs) { 2076 if (mWifiNative.scan(type, freqs)) { 2077 mIsScanOngoing = true; 2078 mIsFullScanOngoing = (freqs == null); 2079 lastScanFreqs = freqs; 2080 return true; 2081 } 2082 return false; 2083 } 2084 2085 /** 2086 * TODO: doc 2087 */ 2088 public void setSupplicantRunning(boolean enable) { 2089 if (enable) { 2090 sendMessage(CMD_START_SUPPLICANT); 2091 } else { 2092 sendMessage(CMD_STOP_SUPPLICANT); 2093 } 2094 } 2095 2096 /** 2097 * TODO: doc 2098 */ 2099 public void setHostApRunning(WifiConfiguration wifiConfig, boolean enable) { 2100 if (enable) { 2101 sendMessage(CMD_START_AP, wifiConfig); 2102 } else { 2103 sendMessage(CMD_STOP_AP); 2104 } 2105 } 2106 2107 public void setWifiApConfiguration(WifiConfiguration config) { 2108 mWifiApConfigChannel.sendMessage(CMD_SET_AP_CONFIG, config); 2109 } 2110 2111 public WifiConfiguration syncGetWifiApConfiguration() { 2112 Message resultMsg = mWifiApConfigChannel.sendMessageSynchronously(CMD_REQUEST_AP_CONFIG); 2113 WifiConfiguration ret = (WifiConfiguration) resultMsg.obj; 2114 resultMsg.recycle(); 2115 return ret; 2116 } 2117 2118 /** 2119 * TODO: doc 2120 */ 2121 public int syncGetWifiState() { 2122 return mWifiState.get(); 2123 } 2124 2125 /** 2126 * TODO: doc 2127 */ 2128 public String syncGetWifiStateByName() { 2129 switch (mWifiState.get()) { 2130 case WIFI_STATE_DISABLING: 2131 return "disabling"; 2132 case WIFI_STATE_DISABLED: 2133 return "disabled"; 2134 case WIFI_STATE_ENABLING: 2135 return "enabling"; 2136 case WIFI_STATE_ENABLED: 2137 return "enabled"; 2138 case WIFI_STATE_UNKNOWN: 2139 return "unknown state"; 2140 default: 2141 return "[invalid state]"; 2142 } 2143 } 2144 2145 /** 2146 * TODO: doc 2147 */ 2148 public int syncGetWifiApState() { 2149 return mWifiApState.get(); 2150 } 2151 2152 /** 2153 * TODO: doc 2154 */ 2155 public String syncGetWifiApStateByName() { 2156 switch (mWifiApState.get()) { 2157 case WIFI_AP_STATE_DISABLING: 2158 return "disabling"; 2159 case WIFI_AP_STATE_DISABLED: 2160 return "disabled"; 2161 case WIFI_AP_STATE_ENABLING: 2162 return "enabling"; 2163 case WIFI_AP_STATE_ENABLED: 2164 return "enabled"; 2165 case WIFI_AP_STATE_FAILED: 2166 return "failed"; 2167 default: 2168 return "[invalid state]"; 2169 } 2170 } 2171 2172 public boolean isConnected() { 2173 return getCurrentState() == mConnectedState; 2174 } 2175 2176 public boolean isDisconnected() { 2177 return getCurrentState() == mDisconnectedState; 2178 } 2179 2180 public boolean isSupplicantTransientState() { 2181 SupplicantState SupplicantState = mWifiInfo.getSupplicantState(); 2182 if (SupplicantState == SupplicantState.ASSOCIATING 2183 || SupplicantState == SupplicantState.AUTHENTICATING 2184 || SupplicantState == SupplicantState.FOUR_WAY_HANDSHAKE 2185 || SupplicantState == SupplicantState.GROUP_HANDSHAKE) { 2186 2187 if (DBG) { 2188 Log.d(TAG, "Supplicant is under transient state: " + SupplicantState); 2189 } 2190 return true; 2191 } else { 2192 if (DBG) { 2193 Log.d(TAG, "Supplicant is under steady state: " + SupplicantState); 2194 } 2195 } 2196 2197 return false; 2198 } 2199 2200 public boolean isLinkDebouncing() { 2201 return linkDebouncing; 2202 } 2203 2204 /** 2205 * Get status information for the current connection, if any. 2206 * 2207 * @return a {@link WifiInfo} object containing information about the current connection 2208 */ 2209 public WifiInfo syncRequestConnectionInfo() { 2210 return getWiFiInfoForUid(Binder.getCallingUid()); 2211 } 2212 2213 public WifiInfo getWifiInfo() { 2214 return mWifiInfo; 2215 } 2216 2217 public DhcpResults syncGetDhcpResults() { 2218 synchronized (mDhcpResultsLock) { 2219 return new DhcpResults(mDhcpResults); 2220 } 2221 } 2222 2223 /** 2224 * TODO: doc 2225 */ 2226 public void setDriverStart(boolean enable) { 2227 if (enable) { 2228 sendMessage(CMD_START_DRIVER); 2229 } else { 2230 sendMessage(CMD_STOP_DRIVER); 2231 } 2232 } 2233 2234 /** 2235 * TODO: doc 2236 */ 2237 public void setOperationalMode(int mode) { 2238 if (DBG) log("setting operational mode to " + String.valueOf(mode)); 2239 sendMessage(CMD_SET_OPERATIONAL_MODE, mode, 0); 2240 } 2241 2242 /** 2243 * TODO: doc 2244 */ 2245 public List<ScanResult> syncGetScanResultsList() { 2246 synchronized (mScanResultCache) { 2247 List<ScanResult> scanList = new ArrayList<ScanResult>(); 2248 for (ScanDetail result : mScanResults) { 2249 scanList.add(new ScanResult(result.getScanResult())); 2250 } 2251 return scanList; 2252 } 2253 } 2254 2255 public Collection<OSUInfo> getOSUInfos() { 2256 return mWifiConfigStore.getOSUInfos(); 2257 } 2258 2259 public void setOSUSelection(int osuID) { 2260 mWifiConfigStore.setOSUSelection(osuID); 2261 } 2262 2263 public void disableEphemeralNetwork(String SSID) { 2264 if (SSID != null) { 2265 sendMessage(CMD_DISABLE_EPHEMERAL_NETWORK, SSID); 2266 } 2267 } 2268 2269 /** 2270 * Get unsynchronized pointer to scan result list 2271 * Can be called only from AutoJoinController which runs in the WifiStateMachine context 2272 */ 2273 public List<ScanDetail> getScanResultsListNoCopyUnsync() { 2274 return mScanResults; 2275 } 2276 2277 /** 2278 * Disconnect from Access Point 2279 */ 2280 public void disconnectCommand() { 2281 sendMessage(CMD_DISCONNECT); 2282 } 2283 2284 public void disconnectCommand(int uid, int reason) { 2285 sendMessage(CMD_DISCONNECT, uid, reason); 2286 } 2287 2288 /** 2289 * Initiate a reconnection to AP 2290 */ 2291 public void reconnectCommand() { 2292 sendMessage(CMD_RECONNECT); 2293 } 2294 2295 /** 2296 * Initiate a re-association to AP 2297 */ 2298 public void reassociateCommand() { 2299 sendMessage(CMD_REASSOCIATE); 2300 } 2301 2302 /** 2303 * Reload networks and then reconnect; helps load correct data for TLS networks 2304 */ 2305 2306 public void reloadTlsNetworksAndReconnect() { 2307 sendMessage(CMD_RELOAD_TLS_AND_RECONNECT); 2308 } 2309 2310 /** 2311 * Add a network synchronously 2312 * 2313 * @return network id of the new network 2314 */ 2315 public int syncAddOrUpdateNetwork(AsyncChannel channel, WifiConfiguration config) { 2316 Message resultMsg = channel.sendMessageSynchronously(CMD_ADD_OR_UPDATE_NETWORK, config); 2317 int result = resultMsg.arg1; 2318 resultMsg.recycle(); 2319 return result; 2320 } 2321 2322 /** 2323 * Get configured networks synchronously 2324 * 2325 * @param channel 2326 * @return 2327 */ 2328 2329 public List<WifiConfiguration> syncGetConfiguredNetworks(int uuid, AsyncChannel channel) { 2330 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_CONFIGURED_NETWORKS, uuid); 2331 List<WifiConfiguration> result = (List<WifiConfiguration>) resultMsg.obj; 2332 resultMsg.recycle(); 2333 return result; 2334 } 2335 2336 public List<WifiConfiguration> syncGetPrivilegedConfiguredNetwork(AsyncChannel channel) { 2337 Message resultMsg = channel.sendMessageSynchronously( 2338 CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS); 2339 List<WifiConfiguration> result = (List<WifiConfiguration>) resultMsg.obj; 2340 resultMsg.recycle(); 2341 return result; 2342 } 2343 2344 public WifiConfiguration syncGetMatchingWifiConfig(ScanResult scanResult, AsyncChannel channel) { 2345 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_MATCHING_CONFIG, scanResult); 2346 return (WifiConfiguration) resultMsg.obj; 2347 } 2348 2349 /** 2350 * Get connection statistics synchronously 2351 * 2352 * @param channel 2353 * @return 2354 */ 2355 2356 public WifiConnectionStatistics syncGetConnectionStatistics(AsyncChannel channel) { 2357 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_CONNECTION_STATISTICS); 2358 WifiConnectionStatistics result = (WifiConnectionStatistics) resultMsg.obj; 2359 resultMsg.recycle(); 2360 return result; 2361 } 2362 2363 /** 2364 * Get adaptors synchronously 2365 */ 2366 2367 public int syncGetSupportedFeatures(AsyncChannel channel) { 2368 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_SUPPORTED_FEATURES); 2369 int supportedFeatureSet = resultMsg.arg1; 2370 resultMsg.recycle(); 2371 return supportedFeatureSet; 2372 } 2373 2374 /** 2375 * Get link layers stats for adapter synchronously 2376 */ 2377 public WifiLinkLayerStats syncGetLinkLayerStats(AsyncChannel channel) { 2378 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_LINK_LAYER_STATS); 2379 WifiLinkLayerStats result = (WifiLinkLayerStats) resultMsg.obj; 2380 resultMsg.recycle(); 2381 return result; 2382 } 2383 2384 /** 2385 * Delete a network 2386 * 2387 * @param networkId id of the network to be removed 2388 */ 2389 public boolean syncRemoveNetwork(AsyncChannel channel, int networkId) { 2390 Message resultMsg = channel.sendMessageSynchronously(CMD_REMOVE_NETWORK, networkId); 2391 boolean result = (resultMsg.arg1 != FAILURE); 2392 resultMsg.recycle(); 2393 return result; 2394 } 2395 2396 /** 2397 * Enable a network 2398 * 2399 * @param netId network id of the network 2400 * @param disableOthers true, if all other networks have to be disabled 2401 * @return {@code true} if the operation succeeds, {@code false} otherwise 2402 */ 2403 public boolean syncEnableNetwork(AsyncChannel channel, int netId, boolean disableOthers) { 2404 Message resultMsg = channel.sendMessageSynchronously(CMD_ENABLE_NETWORK, netId, 2405 disableOthers ? 1 : 0); 2406 boolean result = (resultMsg.arg1 != FAILURE); 2407 resultMsg.recycle(); 2408 return result; 2409 } 2410 2411 /** 2412 * Disable a network 2413 * 2414 * @param netId network id of the network 2415 * @return {@code true} if the operation succeeds, {@code false} otherwise 2416 */ 2417 public boolean syncDisableNetwork(AsyncChannel channel, int netId) { 2418 Message resultMsg = channel.sendMessageSynchronously(WifiManager.DISABLE_NETWORK, netId); 2419 boolean result = (resultMsg.arg1 != WifiManager.DISABLE_NETWORK_FAILED); 2420 resultMsg.recycle(); 2421 return result; 2422 } 2423 2424 /** 2425 * Retrieves a WPS-NFC configuration token for the specified network 2426 * 2427 * @return a hex string representation of the WPS-NFC configuration token 2428 */ 2429 public String syncGetWpsNfcConfigurationToken(int netId) { 2430 return mWifiNative.getNfcWpsConfigurationToken(netId); 2431 } 2432 2433 void enableBackgroundScan(boolean enable) { 2434 if (enable) { 2435 mWifiConfigStore.enableAllNetworks(); 2436 } 2437 boolean ret = mWifiNative.enableBackgroundScan(enable); 2438 if (ret) { 2439 mLegacyPnoEnabled = enable; 2440 } else { 2441 Log.e(TAG, " Fail to set up pno, want " + enable + " now " + mLegacyPnoEnabled); 2442 } 2443 } 2444 2445 /** 2446 * Blacklist a BSSID. This will avoid the AP if there are 2447 * alternate APs to connect 2448 * 2449 * @param bssid BSSID of the network 2450 */ 2451 public void addToBlacklist(String bssid) { 2452 sendMessage(CMD_BLACKLIST_NETWORK, bssid); 2453 } 2454 2455 /** 2456 * Clear the blacklist list 2457 */ 2458 public void clearBlacklist() { 2459 sendMessage(CMD_CLEAR_BLACKLIST); 2460 } 2461 2462 public void enableRssiPolling(boolean enabled) { 2463 sendMessage(CMD_ENABLE_RSSI_POLL, enabled ? 1 : 0, 0); 2464 } 2465 2466 public void enableAllNetworks() { 2467 sendMessage(CMD_ENABLE_ALL_NETWORKS); 2468 } 2469 2470 /** 2471 * Start filtering Multicast v4 packets 2472 */ 2473 public void startFilteringMulticastV4Packets() { 2474 mFilteringMulticastV4Packets.set(true); 2475 sendMessage(CMD_START_PACKET_FILTERING, MULTICAST_V4, 0); 2476 } 2477 2478 /** 2479 * Stop filtering Multicast v4 packets 2480 */ 2481 public void stopFilteringMulticastV4Packets() { 2482 mFilteringMulticastV4Packets.set(false); 2483 sendMessage(CMD_STOP_PACKET_FILTERING, MULTICAST_V4, 0); 2484 } 2485 2486 /** 2487 * Start filtering Multicast v4 packets 2488 */ 2489 public void startFilteringMulticastV6Packets() { 2490 sendMessage(CMD_START_PACKET_FILTERING, MULTICAST_V6, 0); 2491 } 2492 2493 /** 2494 * Stop filtering Multicast v4 packets 2495 */ 2496 public void stopFilteringMulticastV6Packets() { 2497 sendMessage(CMD_STOP_PACKET_FILTERING, MULTICAST_V6, 0); 2498 } 2499 2500 /** 2501 * Set high performance mode of operation. 2502 * Enabling would set active power mode and disable suspend optimizations; 2503 * disabling would set auto power mode and enable suspend optimizations 2504 * 2505 * @param enable true if enable, false otherwise 2506 */ 2507 public void setHighPerfModeEnabled(boolean enable) { 2508 sendMessage(CMD_SET_HIGH_PERF_MODE, enable ? 1 : 0, 0); 2509 } 2510 2511 /** 2512 * Set the country code 2513 * 2514 * @param countryCode following ISO 3166 format 2515 * @param persist {@code true} if the setting should be remembered. 2516 */ 2517 public synchronized void setCountryCode(String countryCode, boolean persist) { 2518 // If it's a good country code, apply after the current 2519 // wifi connection is terminated; ignore resetting of code 2520 // for now (it is unclear what the chipset should do when 2521 // country code is reset) 2522 2523 // if mCountryCodeSequence == 0, it is the first time to set country code, always set 2524 // else only when the new country code is different from the current one to set 2525 2526 if (TextUtils.isEmpty(countryCode)) { 2527 if (DBG) log("Ignoring resetting of country code"); 2528 } else { 2529 int countryCodeSequence = mCountryCodeSequence.get(); 2530 String currentCountryCode = getCurrentCountryCode(); 2531 if (countryCodeSequence == 0 2532 || TextUtils.equals(countryCode, currentCountryCode) == false) { 2533 2534 countryCodeSequence = mCountryCodeSequence.incrementAndGet(); 2535 sendMessage(CMD_SET_COUNTRY_CODE, countryCodeSequence, persist ? 1 : 0, 2536 countryCode); 2537 } 2538 } 2539 } 2540 2541 /** 2542 * reset the country code to default 2543 */ 2544 public synchronized void resetCountryCode() { 2545 if (mRevertCountryCodeOnCellularLoss && TextUtils.isEmpty(mDefaultCountryCode) == false) { 2546 logd("resetting country code to " + mDefaultCountryCode); 2547 setCountryCode(mDefaultCountryCode, /* persist = */ true); 2548 } 2549 } 2550 2551 /** 2552 * reset cached SIM credential data 2553 */ 2554 public synchronized void resetSimAuthNetworks() { 2555 sendMessage(CMD_RESET_SIM_NETWORKS); 2556 } 2557 2558 2559 /** 2560 * Get Network object of current wifi network 2561 * @return Network object of current wifi network 2562 */ 2563 public Network getCurrentNetwork() { 2564 if (mNetworkAgent != null) { 2565 return new Network(mNetworkAgent.netId); 2566 } else { 2567 return null; 2568 } 2569 } 2570 2571 /** 2572 * Get the country code 2573 * 2574 * @return countryCode following ISO 3166 format 2575 */ 2576 public String getCurrentCountryCode() { 2577 return mFacade.getStringSetting(mContext, Settings.Global.WIFI_COUNTRY_CODE); 2578 } 2579 2580 /** 2581 * Set the operational frequency band 2582 * 2583 * @param band 2584 * @param persist {@code true} if the setting should be remembered. 2585 */ 2586 public void setFrequencyBand(int band, boolean persist) { 2587 if (persist) { 2588 Settings.Global.putInt(mContext.getContentResolver(), 2589 Settings.Global.WIFI_FREQUENCY_BAND, 2590 band); 2591 } 2592 sendMessage(CMD_SET_FREQUENCY_BAND, band, 0); 2593 } 2594 2595 /** 2596 * Enable TDLS for a specific MAC address 2597 */ 2598 public void enableTdls(String remoteMacAddress, boolean enable) { 2599 int enabler = enable ? 1 : 0; 2600 sendMessage(CMD_ENABLE_TDLS, enabler, 0, remoteMacAddress); 2601 } 2602 2603 /** 2604 * Returns the operational frequency band 2605 */ 2606 public int getFrequencyBand() { 2607 return mFrequencyBand.get(); 2608 } 2609 2610 /** 2611 * Returns the wifi configuration file 2612 */ 2613 public String getConfigFile() { 2614 return mWifiConfigStore.getConfigFile(); 2615 } 2616 2617 /** 2618 * Send a message indicating bluetooth adapter connection state changed 2619 */ 2620 public void sendBluetoothAdapterStateChange(int state) { 2621 sendMessage(CMD_BLUETOOTH_ADAPTER_STATE_CHANGE, state, 0); 2622 } 2623 2624 /** 2625 * Send a message indicating a package has been uninstalled. 2626 */ 2627 public void removeAppConfigs(String packageName, int uid) { 2628 // Build partial AppInfo manually - package may not exist in database any more 2629 ApplicationInfo ai = new ApplicationInfo(); 2630 ai.packageName = packageName; 2631 ai.uid = uid; 2632 sendMessage(CMD_REMOVE_APP_CONFIGURATIONS, ai); 2633 } 2634 2635 /** 2636 * Send a message indicating a user has been removed. 2637 */ 2638 public void removeUserConfigs(int userId) { 2639 sendMessage(CMD_REMOVE_USER_CONFIGURATIONS, userId); 2640 } 2641 2642 /** 2643 * Save configuration on supplicant 2644 * 2645 * @return {@code true} if the operation succeeds, {@code false} otherwise 2646 * <p/> 2647 * TODO: deprecate this 2648 */ 2649 public boolean syncSaveConfig(AsyncChannel channel) { 2650 Message resultMsg = channel.sendMessageSynchronously(CMD_SAVE_CONFIG); 2651 boolean result = (resultMsg.arg1 != FAILURE); 2652 resultMsg.recycle(); 2653 return result; 2654 } 2655 2656 public void updateBatteryWorkSource(WorkSource newSource) { 2657 synchronized (mRunningWifiUids) { 2658 try { 2659 if (newSource != null) { 2660 mRunningWifiUids.set(newSource); 2661 } 2662 if (mIsRunning) { 2663 if (mReportedRunning) { 2664 // If the work source has changed since last time, need 2665 // to remove old work from battery stats. 2666 if (mLastRunningWifiUids.diff(mRunningWifiUids)) { 2667 mBatteryStats.noteWifiRunningChanged(mLastRunningWifiUids, 2668 mRunningWifiUids); 2669 mLastRunningWifiUids.set(mRunningWifiUids); 2670 } 2671 } else { 2672 // Now being started, report it. 2673 mBatteryStats.noteWifiRunning(mRunningWifiUids); 2674 mLastRunningWifiUids.set(mRunningWifiUids); 2675 mReportedRunning = true; 2676 } 2677 } else { 2678 if (mReportedRunning) { 2679 // Last reported we were running, time to stop. 2680 mBatteryStats.noteWifiStopped(mLastRunningWifiUids); 2681 mLastRunningWifiUids.clear(); 2682 mReportedRunning = false; 2683 } 2684 } 2685 mWakeLock.setWorkSource(newSource); 2686 } catch (RemoteException ignore) { 2687 } 2688 } 2689 } 2690 2691 @Override 2692 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 2693 super.dump(fd, pw, args); 2694 mSupplicantStateTracker.dump(fd, pw, args); 2695 pw.println("mLinkProperties " + mLinkProperties); 2696 pw.println("mWifiInfo " + mWifiInfo); 2697 pw.println("mDhcpResults " + mDhcpResults); 2698 pw.println("mNetworkInfo " + mNetworkInfo); 2699 pw.println("mLastSignalLevel " + mLastSignalLevel); 2700 pw.println("mLastBssid " + mLastBssid); 2701 pw.println("mLastNetworkId " + mLastNetworkId); 2702 pw.println("mOperationalMode " + mOperationalMode); 2703 pw.println("mUserWantsSuspendOpt " + mUserWantsSuspendOpt); 2704 pw.println("mSuspendOptNeedsDisabled " + mSuspendOptNeedsDisabled); 2705 pw.println("Supplicant status " + mWifiNative.status(true)); 2706 pw.println("mLegacyPnoEnabled " + mLegacyPnoEnabled); 2707 pw.println("mDriverSetCountryCode " + mDriverSetCountryCode); 2708 pw.println("mConnectedModeGScanOffloadStarted " + mConnectedModeGScanOffloadStarted); 2709 pw.println("mGScanPeriodMilli " + mGScanPeriodMilli); 2710 if (mWhiteListedSsids != null && mWhiteListedSsids.length > 0) { 2711 pw.println("SSID whitelist :" ); 2712 for (int i=0; i < mWhiteListedSsids.length; i++) { 2713 pw.println(" " + mWhiteListedSsids[i]); 2714 } 2715 } 2716 if (mNetworkFactory != null) { 2717 mNetworkFactory.dump(fd, pw, args); 2718 } else { 2719 pw.println("mNetworkFactory is not initialized"); 2720 } 2721 2722 if (mUntrustedNetworkFactory != null) { 2723 mUntrustedNetworkFactory.dump(fd, pw, args); 2724 } else { 2725 pw.println("mUntrustedNetworkFactory is not initialized"); 2726 } 2727 pw.println(); 2728 updateWifiMetrics(); 2729 mWifiMetrics.dump(fd, pw, args); 2730 pw.println(); 2731 mNetworkFactory.dump(fd, pw, args); 2732 mUntrustedNetworkFactory.dump(fd, pw, args); 2733 pw.println(); 2734 2735 mWifiConfigStore.dump(fd, pw, args); 2736 pw.println(); 2737 mWifiLogger.captureBugReportData(WifiLogger.REPORT_REASON_USER_ACTION); 2738 mWifiLogger.dump(fd, pw, args); 2739 mWifiQualifiedNetworkSelector.dump(fd, pw, args); 2740 } 2741 2742 public void handleUserSwitch(int userId) { 2743 sendMessage(CMD_USER_SWITCH, userId); 2744 } 2745 2746 /** 2747 * ****************************************************** 2748 * Internal private functions 2749 * ****************************************************** 2750 */ 2751 2752 private void logStateAndMessage(Message message, State state) { 2753 messageHandlingStatus = 0; 2754 if (mLogMessages) { 2755 logd(" " + state.getClass().getSimpleName() + " " + getLogRecString(message)); 2756 } 2757 } 2758 2759 /** 2760 * helper, prints the milli time since boot wi and w/o suspended time 2761 */ 2762 String printTime() { 2763 StringBuilder sb = new StringBuilder(); 2764 sb.append(" rt=").append(SystemClock.uptimeMillis()); 2765 sb.append("/").append(SystemClock.elapsedRealtime()); 2766 return sb.toString(); 2767 } 2768 2769 /** 2770 * Return the additional string to be logged by LogRec, default 2771 * 2772 * @param msg that was processed 2773 * @return information to be logged as a String 2774 */ 2775 protected String getLogRecString(Message msg) { 2776 WifiConfiguration config; 2777 Long now; 2778 String report; 2779 String key; 2780 StringBuilder sb = new StringBuilder(); 2781 if (mScreenOn) { 2782 sb.append("!"); 2783 } 2784 if (messageHandlingStatus != MESSAGE_HANDLING_STATUS_UNKNOWN) { 2785 sb.append("(").append(messageHandlingStatus).append(")"); 2786 } 2787 sb.append(smToString(msg)); 2788 if (msg.sendingUid > 0 && msg.sendingUid != Process.WIFI_UID) { 2789 sb.append(" uid=" + msg.sendingUid); 2790 } 2791 sb.append(" ").append(printTime()); 2792 switch (msg.what) { 2793 case CMD_STARTED_GSCAN_DBG: 2794 case CMD_STARTED_PNO_DBG: 2795 sb.append(" "); 2796 sb.append(Integer.toString(msg.arg1)); 2797 sb.append(" "); 2798 sb.append(Integer.toString(msg.arg2)); 2799 if (msg.obj != null) { 2800 sb.append(" " + (String)msg.obj); 2801 } 2802 break; 2803 case CMD_RESTART_AUTOJOIN_OFFLOAD: 2804 sb.append(" "); 2805 sb.append(Integer.toString(msg.arg1)); 2806 sb.append(" "); 2807 sb.append(Integer.toString(msg.arg2)); 2808 sb.append("/").append(Integer.toString(mRestartAutoJoinOffloadCounter)); 2809 if (msg.obj != null) { 2810 sb.append(" " + (String)msg.obj); 2811 } 2812 break; 2813 case CMD_UPDATE_ASSOCIATED_SCAN_PERMISSION: 2814 sb.append(" "); 2815 sb.append(Integer.toString(msg.arg1)); 2816 sb.append(" "); 2817 sb.append(Integer.toString(msg.arg2)); 2818 sb.append(" halAllowed=").append(useHalBasedAutoJoinOffload()); 2819 sb.append(" scanAllowed=").append(allowFullBandScanAndAssociated()); 2820 sb.append(" autojoinAllowed="); 2821 sb.append(mWifiConfigStore.enableAutoJoinWhenAssociated.get()); 2822 sb.append(" withTraffic=").append(getAllowScansWithTraffic()); 2823 sb.append(" tx=").append(mWifiInfo.txSuccessRate); 2824 sb.append("/").append(mWifiConfigStore.maxTxPacketForFullScans); 2825 sb.append(" rx=").append(mWifiInfo.rxSuccessRate); 2826 sb.append("/").append(mWifiConfigStore.maxRxPacketForFullScans); 2827 sb.append(" -> ").append(mConnectedModeGScanOffloadStarted); 2828 break; 2829 case CMD_PNO_NETWORK_FOUND: 2830 sb.append(" "); 2831 sb.append(Integer.toString(msg.arg1)); 2832 sb.append(" "); 2833 sb.append(Integer.toString(msg.arg2)); 2834 if (msg.obj != null) { 2835 ScanResult[] results = (ScanResult[])msg.obj; 2836 for (int i = 0; i < results.length; i++) { 2837 sb.append(" ").append(results[i].SSID).append(" "); 2838 sb.append(results[i].frequency); 2839 sb.append(" ").append(results[i].level); 2840 } 2841 } 2842 break; 2843 case CMD_START_SCAN: 2844 now = System.currentTimeMillis(); 2845 sb.append(" "); 2846 sb.append(Integer.toString(msg.arg1)); 2847 sb.append(" "); 2848 sb.append(Integer.toString(msg.arg2)); 2849 sb.append(" ic="); 2850 sb.append(Integer.toString(sScanAlarmIntentCount)); 2851 if (msg.obj != null) { 2852 Bundle bundle = (Bundle) msg.obj; 2853 Long request = bundle.getLong(SCAN_REQUEST_TIME, 0); 2854 if (request != 0) { 2855 sb.append(" proc(ms):").append(now - request); 2856 } 2857 } 2858 if (mIsScanOngoing) sb.append(" onGoing"); 2859 if (mIsFullScanOngoing) sb.append(" full"); 2860 if (lastStartScanTimeStamp != 0) { 2861 sb.append(" started:").append(lastStartScanTimeStamp); 2862 sb.append(",").append(now - lastStartScanTimeStamp); 2863 } 2864 if (lastScanDuration != 0) { 2865 sb.append(" dur:").append(lastScanDuration); 2866 } 2867 sb.append(" cnt=").append(mDelayedScanCounter); 2868 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2869 sb.append(" f=").append(mWifiInfo.getFrequency()); 2870 sb.append(" sc=").append(mWifiInfo.score); 2871 sb.append(" link=").append(mWifiInfo.getLinkSpeed()); 2872 sb.append(String.format(" tx=%.1f,", mWifiInfo.txSuccessRate)); 2873 sb.append(String.format(" %.1f,", mWifiInfo.txRetriesRate)); 2874 sb.append(String.format(" %.1f ", mWifiInfo.txBadRate)); 2875 sb.append(String.format(" rx=%.1f", mWifiInfo.rxSuccessRate)); 2876 if (lastScanFreqs != null) { 2877 sb.append(" list="); 2878 for(int freq : lastScanFreqs) { 2879 sb.append(freq).append(","); 2880 } 2881 } else { 2882 sb.append(" fiv=").append(fullBandConnectedTimeIntervalMilli); 2883 } 2884 report = reportOnTime(); 2885 if (report != null) { 2886 sb.append(" ").append(report); 2887 } 2888 break; 2889 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 2890 sb.append(" "); 2891 sb.append(Integer.toString(msg.arg1)); 2892 sb.append(" "); 2893 sb.append(Integer.toString(msg.arg2)); 2894 StateChangeResult stateChangeResult = (StateChangeResult) msg.obj; 2895 if (stateChangeResult != null) { 2896 sb.append(stateChangeResult.toString()); 2897 } 2898 break; 2899 case WifiManager.SAVE_NETWORK: 2900 case WifiStateMachine.CMD_AUTO_SAVE_NETWORK: 2901 sb.append(" "); 2902 sb.append(Integer.toString(msg.arg1)); 2903 sb.append(" "); 2904 sb.append(Integer.toString(msg.arg2)); 2905 if (lastSavedConfigurationAttempt != null) { 2906 sb.append(" ").append(lastSavedConfigurationAttempt.configKey()); 2907 sb.append(" nid=").append(lastSavedConfigurationAttempt.networkId); 2908 if (lastSavedConfigurationAttempt.hiddenSSID) { 2909 sb.append(" hidden"); 2910 } 2911 if (lastSavedConfigurationAttempt.preSharedKey != null 2912 && !lastSavedConfigurationAttempt.preSharedKey.equals("*")) { 2913 sb.append(" hasPSK"); 2914 } 2915 if (lastSavedConfigurationAttempt.ephemeral) { 2916 sb.append(" ephemeral"); 2917 } 2918 if (lastSavedConfigurationAttempt.selfAdded) { 2919 sb.append(" selfAdded"); 2920 } 2921 sb.append(" cuid=").append(lastSavedConfigurationAttempt.creatorUid); 2922 sb.append(" suid=").append(lastSavedConfigurationAttempt.lastUpdateUid); 2923 } 2924 break; 2925 case WifiManager.FORGET_NETWORK: 2926 sb.append(" "); 2927 sb.append(Integer.toString(msg.arg1)); 2928 sb.append(" "); 2929 sb.append(Integer.toString(msg.arg2)); 2930 if (lastForgetConfigurationAttempt != null) { 2931 sb.append(" ").append(lastForgetConfigurationAttempt.configKey()); 2932 sb.append(" nid=").append(lastForgetConfigurationAttempt.networkId); 2933 if (lastForgetConfigurationAttempt.hiddenSSID) { 2934 sb.append(" hidden"); 2935 } 2936 if (lastForgetConfigurationAttempt.preSharedKey != null) { 2937 sb.append(" hasPSK"); 2938 } 2939 if (lastForgetConfigurationAttempt.ephemeral) { 2940 sb.append(" ephemeral"); 2941 } 2942 if (lastForgetConfigurationAttempt.selfAdded) { 2943 sb.append(" selfAdded"); 2944 } 2945 sb.append(" cuid=").append(lastForgetConfigurationAttempt.creatorUid); 2946 sb.append(" suid=").append(lastForgetConfigurationAttempt.lastUpdateUid); 2947 WifiConfiguration.NetworkSelectionStatus netWorkSelectionStatus = 2948 lastForgetConfigurationAttempt.getNetworkSelectionStatus(); 2949 sb.append(" ajst=").append( 2950 netWorkSelectionStatus.getNetworkStatusString()); 2951 } 2952 break; 2953 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 2954 sb.append(" "); 2955 sb.append(Integer.toString(msg.arg1)); 2956 sb.append(" "); 2957 sb.append(Integer.toString(msg.arg2)); 2958 String bssid = (String) msg.obj; 2959 if (bssid != null && bssid.length() > 0) { 2960 sb.append(" "); 2961 sb.append(bssid); 2962 } 2963 sb.append(" blacklist=" + Boolean.toString(didBlackListBSSID)); 2964 break; 2965 case WifiMonitor.SCAN_RESULTS_EVENT: 2966 sb.append(" "); 2967 sb.append(Integer.toString(msg.arg1)); 2968 sb.append(" "); 2969 sb.append(Integer.toString(msg.arg2)); 2970 if (mScanResults != null) { 2971 sb.append(" found="); 2972 sb.append(mScanResults.size()); 2973 } 2974 sb.append(" known=").append(mNumScanResultsKnown); 2975 sb.append(" got=").append(mNumScanResultsReturned); 2976 if (lastScanDuration != 0) { 2977 sb.append(" dur:").append(lastScanDuration); 2978 } 2979 if (mOnTime != 0) { 2980 sb.append(" on:").append(mOnTimeThisScan).append(",").append(mOnTimeScan); 2981 sb.append(",").append(mOnTime); 2982 } 2983 if (mTxTime != 0) { 2984 sb.append(" tx:").append(mTxTimeThisScan).append(",").append(mTxTimeScan); 2985 sb.append(",").append(mTxTime); 2986 } 2987 if (mRxTime != 0) { 2988 sb.append(" rx:").append(mRxTimeThisScan).append(",").append(mRxTimeScan); 2989 sb.append(",").append(mRxTime); 2990 } 2991 sb.append(String.format(" bcn=%d", mRunningBeaconCount)); 2992 sb.append(String.format(" con=%d", mConnectionRequests)); 2993 key = mWifiConfigStore.getLastSelectedConfiguration(); 2994 if (key != null) { 2995 sb.append(" last=").append(key); 2996 } 2997 break; 2998 case WifiMonitor.SCAN_FAILED_EVENT: 2999 break; 3000 case WifiMonitor.NETWORK_CONNECTION_EVENT: 3001 sb.append(" "); 3002 sb.append(Integer.toString(msg.arg1)); 3003 sb.append(" "); 3004 sb.append(Integer.toString(msg.arg2)); 3005 sb.append(" ").append(mLastBssid); 3006 sb.append(" nid=").append(mLastNetworkId); 3007 config = getCurrentWifiConfiguration(); 3008 if (config != null) { 3009 sb.append(" ").append(config.configKey()); 3010 } 3011 key = mWifiConfigStore.getLastSelectedConfiguration(); 3012 if (key != null) { 3013 sb.append(" last=").append(key); 3014 } 3015 break; 3016 case CMD_TARGET_BSSID: 3017 case CMD_ASSOCIATED_BSSID: 3018 sb.append(" "); 3019 sb.append(Integer.toString(msg.arg1)); 3020 sb.append(" "); 3021 sb.append(Integer.toString(msg.arg2)); 3022 if (msg.obj != null) { 3023 sb.append(" BSSID=").append((String) msg.obj); 3024 } 3025 if (mTargetRoamBSSID != null) { 3026 sb.append(" Target=").append(mTargetRoamBSSID); 3027 } 3028 sb.append(" roam=").append(Boolean.toString(mAutoRoaming)); 3029 break; 3030 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 3031 if (msg.obj != null) { 3032 sb.append(" ").append((String) msg.obj); 3033 } 3034 sb.append(" nid=").append(msg.arg1); 3035 sb.append(" reason=").append(msg.arg2); 3036 if (mLastBssid != null) { 3037 sb.append(" lastbssid=").append(mLastBssid); 3038 } 3039 if (mWifiInfo.getFrequency() != -1) { 3040 sb.append(" freq=").append(mWifiInfo.getFrequency()); 3041 sb.append(" rssi=").append(mWifiInfo.getRssi()); 3042 } 3043 if (linkDebouncing) { 3044 sb.append(" debounce"); 3045 } 3046 break; 3047 case WifiMonitor.SSID_TEMP_DISABLED: 3048 case WifiMonitor.SSID_REENABLED: 3049 sb.append(" nid=").append(msg.arg1); 3050 if (msg.obj != null) { 3051 sb.append(" ").append((String) msg.obj); 3052 } 3053 config = getCurrentWifiConfiguration(); 3054 if (config != null) { 3055 WifiConfiguration.NetworkSelectionStatus netWorkSelectionStatus = 3056 config.getNetworkSelectionStatus(); 3057 sb.append(" cur=").append(config.configKey()); 3058 sb.append(" ajst=").append(netWorkSelectionStatus.getNetworkStatusString()); 3059 if (config.selfAdded) { 3060 sb.append(" selfAdded"); 3061 } 3062 if (config.status != 0) { 3063 sb.append(" st=").append(config.status); 3064 sb.append(" rs=").append( 3065 netWorkSelectionStatus.getNetworkDisableReasonString()); 3066 } 3067 if (config.lastConnected != 0) { 3068 now = System.currentTimeMillis(); 3069 sb.append(" lastconn=").append(now - config.lastConnected).append("(ms)"); 3070 } 3071 if (mLastBssid != null) { 3072 sb.append(" lastbssid=").append(mLastBssid); 3073 } 3074 if (mWifiInfo.getFrequency() != -1) { 3075 sb.append(" freq=").append(mWifiInfo.getFrequency()); 3076 sb.append(" rssi=").append(mWifiInfo.getRssi()); 3077 sb.append(" bssid=").append(mWifiInfo.getBSSID()); 3078 } 3079 } 3080 break; 3081 case CMD_RSSI_POLL: 3082 case CMD_UNWANTED_NETWORK: 3083 case WifiManager.RSSI_PKTCNT_FETCH: 3084 sb.append(" "); 3085 sb.append(Integer.toString(msg.arg1)); 3086 sb.append(" "); 3087 sb.append(Integer.toString(msg.arg2)); 3088 if (mWifiInfo.getSSID() != null) 3089 if (mWifiInfo.getSSID() != null) 3090 sb.append(" ").append(mWifiInfo.getSSID()); 3091 if (mWifiInfo.getBSSID() != null) 3092 sb.append(" ").append(mWifiInfo.getBSSID()); 3093 sb.append(" rssi=").append(mWifiInfo.getRssi()); 3094 sb.append(" f=").append(mWifiInfo.getFrequency()); 3095 sb.append(" sc=").append(mWifiInfo.score); 3096 sb.append(" link=").append(mWifiInfo.getLinkSpeed()); 3097 sb.append(String.format(" tx=%.1f,", mWifiInfo.txSuccessRate)); 3098 sb.append(String.format(" %.1f,", mWifiInfo.txRetriesRate)); 3099 sb.append(String.format(" %.1f ", mWifiInfo.txBadRate)); 3100 sb.append(String.format(" rx=%.1f", mWifiInfo.rxSuccessRate)); 3101 sb.append(String.format(" bcn=%d", mRunningBeaconCount)); 3102 report = reportOnTime(); 3103 if (report != null) { 3104 sb.append(" ").append(report); 3105 } 3106 if (wifiScoringReport != null) { 3107 sb.append(wifiScoringReport); 3108 } 3109 if (mConnectedModeGScanOffloadStarted) { 3110 sb.append(" offload-started periodMilli " + mGScanPeriodMilli); 3111 } else { 3112 sb.append(" offload-stopped"); 3113 } 3114 break; 3115 case CMD_AUTO_CONNECT: 3116 case WifiManager.CONNECT_NETWORK: 3117 sb.append(" "); 3118 sb.append(Integer.toString(msg.arg1)); 3119 sb.append(" "); 3120 sb.append(Integer.toString(msg.arg2)); 3121 config = mWifiConfigStore.getWifiConfiguration(msg.arg1); 3122 if (config != null) { 3123 sb.append(" ").append(config.configKey()); 3124 if (config.visibility != null) { 3125 sb.append(" ").append(config.visibility.toString()); 3126 } 3127 } 3128 if (mTargetRoamBSSID != null) { 3129 sb.append(" ").append(mTargetRoamBSSID); 3130 } 3131 sb.append(" roam=").append(Boolean.toString(mAutoRoaming)); 3132 config = getCurrentWifiConfiguration(); 3133 if (config != null) { 3134 sb.append(config.configKey()); 3135 if (config.visibility != null) { 3136 sb.append(" ").append(config.visibility.toString()); 3137 } 3138 } 3139 break; 3140 case CMD_AUTO_ROAM: 3141 sb.append(" "); 3142 sb.append(Integer.toString(msg.arg1)); 3143 sb.append(" "); 3144 sb.append(Integer.toString(msg.arg2)); 3145 ScanResult result = (ScanResult) msg.obj; 3146 if (result != null) { 3147 now = System.currentTimeMillis(); 3148 sb.append(" bssid=").append(result.BSSID); 3149 sb.append(" rssi=").append(result.level); 3150 sb.append(" freq=").append(result.frequency); 3151 if (result.seen > 0 && result.seen < now) { 3152 sb.append(" seen=").append(now - result.seen); 3153 } else { 3154 // Somehow the timestamp for this scan result is inconsistent 3155 sb.append(" !seen=").append(result.seen); 3156 } 3157 } 3158 if (mTargetRoamBSSID != null) { 3159 sb.append(" ").append(mTargetRoamBSSID); 3160 } 3161 sb.append(" roam=").append(Boolean.toString(mAutoRoaming)); 3162 sb.append(" fail count=").append(Integer.toString(mRoamFailCount)); 3163 break; 3164 case CMD_ADD_OR_UPDATE_NETWORK: 3165 sb.append(" "); 3166 sb.append(Integer.toString(msg.arg1)); 3167 sb.append(" "); 3168 sb.append(Integer.toString(msg.arg2)); 3169 if (msg.obj != null) { 3170 config = (WifiConfiguration) msg.obj; 3171 sb.append(" ").append(config.configKey()); 3172 sb.append(" prio=").append(config.priority); 3173 sb.append(" status=").append(config.status); 3174 if (config.BSSID != null) { 3175 sb.append(" ").append(config.BSSID); 3176 } 3177 WifiConfiguration curConfig = getCurrentWifiConfiguration(); 3178 if (curConfig != null) { 3179 if (curConfig.configKey().equals(config.configKey())) { 3180 sb.append(" is current"); 3181 } else { 3182 sb.append(" current=").append(curConfig.configKey()); 3183 sb.append(" prio=").append(curConfig.priority); 3184 sb.append(" status=").append(curConfig.status); 3185 } 3186 } 3187 } 3188 break; 3189 case WifiManager.DISABLE_NETWORK: 3190 case CMD_ENABLE_NETWORK: 3191 sb.append(" "); 3192 sb.append(Integer.toString(msg.arg1)); 3193 sb.append(" "); 3194 sb.append(Integer.toString(msg.arg2)); 3195 key = mWifiConfigStore.getLastSelectedConfiguration(); 3196 if (key != null) { 3197 sb.append(" last=").append(key); 3198 } 3199 config = mWifiConfigStore.getWifiConfiguration(msg.arg1); 3200 if (config != null && (key == null || !config.configKey().equals(key))) { 3201 sb.append(" target=").append(key); 3202 } 3203 break; 3204 case CMD_GET_CONFIGURED_NETWORKS: 3205 sb.append(" "); 3206 sb.append(Integer.toString(msg.arg1)); 3207 sb.append(" "); 3208 sb.append(Integer.toString(msg.arg2)); 3209 sb.append(" num=").append(mWifiConfigStore.getConfiguredNetworksSize()); 3210 break; 3211 case DhcpStateMachine.CMD_PRE_DHCP_ACTION: 3212 sb.append(" "); 3213 sb.append(Integer.toString(msg.arg1)); 3214 sb.append(" "); 3215 sb.append(Integer.toString(msg.arg2)); 3216 sb.append(" txpkts=").append(mWifiInfo.txSuccess); 3217 sb.append(",").append(mWifiInfo.txBad); 3218 sb.append(",").append(mWifiInfo.txRetries); 3219 break; 3220 case DhcpStateMachine.CMD_POST_DHCP_ACTION: 3221 sb.append(" "); 3222 sb.append(Integer.toString(msg.arg1)); 3223 sb.append(" "); 3224 sb.append(Integer.toString(msg.arg2)); 3225 if (msg.arg1 == DhcpStateMachine.DHCP_SUCCESS) { 3226 sb.append(" OK "); 3227 } else if (msg.arg1 == DhcpStateMachine.DHCP_FAILURE) { 3228 sb.append(" FAIL "); 3229 } 3230 if (mLinkProperties != null) { 3231 sb.append(" "); 3232 sb.append(getLinkPropertiesSummary(mLinkProperties)); 3233 } 3234 break; 3235 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 3236 sb.append(" "); 3237 sb.append(Integer.toString(msg.arg1)); 3238 sb.append(" "); 3239 sb.append(Integer.toString(msg.arg2)); 3240 if (msg.obj != null) { 3241 NetworkInfo info = (NetworkInfo) msg.obj; 3242 NetworkInfo.State state = info.getState(); 3243 NetworkInfo.DetailedState detailedState = info.getDetailedState(); 3244 if (state != null) { 3245 sb.append(" st=").append(state); 3246 } 3247 if (detailedState != null) { 3248 sb.append("/").append(detailedState); 3249 } 3250 } 3251 break; 3252 case CMD_IP_CONFIGURATION_LOST: 3253 int count = -1; 3254 WifiConfiguration c = getCurrentWifiConfiguration(); 3255 if (c != null) { 3256 count = c.getNetworkSelectionStatus().getDisableReasonCounter( 3257 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3258 } 3259 sb.append(" "); 3260 sb.append(Integer.toString(msg.arg1)); 3261 sb.append(" "); 3262 sb.append(Integer.toString(msg.arg2)); 3263 sb.append(" failures: "); 3264 sb.append(Integer.toString(count)); 3265 sb.append("/"); 3266 sb.append(Integer.toString(mWifiConfigStore.getMaxDhcpRetries())); 3267 if (mWifiInfo.getBSSID() != null) { 3268 sb.append(" ").append(mWifiInfo.getBSSID()); 3269 } 3270 sb.append(String.format(" bcn=%d", mRunningBeaconCount)); 3271 break; 3272 case CMD_UPDATE_LINKPROPERTIES: 3273 sb.append(" "); 3274 sb.append(Integer.toString(msg.arg1)); 3275 sb.append(" "); 3276 sb.append(Integer.toString(msg.arg2)); 3277 if (mLinkProperties != null) { 3278 sb.append(" "); 3279 sb.append(getLinkPropertiesSummary(mLinkProperties)); 3280 } 3281 break; 3282 case CMD_IP_REACHABILITY_LOST: 3283 if (msg.obj != null) { 3284 sb.append(" ").append((String) msg.obj); 3285 } 3286 break; 3287 case CMD_SET_COUNTRY_CODE: 3288 sb.append(" "); 3289 sb.append(Integer.toString(msg.arg1)); 3290 sb.append(" "); 3291 sb.append(Integer.toString(msg.arg2)); 3292 if (msg.obj != null) { 3293 sb.append(" ").append((String) msg.obj); 3294 } 3295 break; 3296 case CMD_ROAM_WATCHDOG_TIMER: 3297 sb.append(" "); 3298 sb.append(Integer.toString(msg.arg1)); 3299 sb.append(" "); 3300 sb.append(Integer.toString(msg.arg2)); 3301 sb.append(" cur=").append(roamWatchdogCount); 3302 break; 3303 case CMD_DISCONNECTING_WATCHDOG_TIMER: 3304 sb.append(" "); 3305 sb.append(Integer.toString(msg.arg1)); 3306 sb.append(" "); 3307 sb.append(Integer.toString(msg.arg2)); 3308 sb.append(" cur=").append(disconnectingWatchdogCount); 3309 break; 3310 case CMD_START_RSSI_MONITORING_OFFLOAD: 3311 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 3312 case CMD_RSSI_THRESHOLD_BREACH: 3313 sb.append(" rssi="); 3314 sb.append(Integer.toString(msg.arg1)); 3315 sb.append(" thresholds="); 3316 sb.append(Arrays.toString(mRssiRanges)); 3317 break; 3318 case CMD_USER_SWITCH: 3319 sb.append(" userId="); 3320 sb.append(Integer.toString(msg.arg1)); 3321 break; 3322 default: 3323 sb.append(" "); 3324 sb.append(Integer.toString(msg.arg1)); 3325 sb.append(" "); 3326 sb.append(Integer.toString(msg.arg2)); 3327 break; 3328 } 3329 3330 return sb.toString(); 3331 } 3332 3333 private void stopPnoOffload() { 3334 3335 // clear the PNO list 3336 if (!mWifiNative.setPnoList(null, WifiStateMachine.this)) { 3337 Log.e(TAG, "Failed to stop pno"); 3338 } 3339 3340 } 3341 3342 3343 private boolean configureSsidWhiteList() { 3344 3345 mWhiteListedSsids = mWifiConfigStore.getWhiteListedSsids(getCurrentWifiConfiguration()); 3346 if (mWhiteListedSsids == null || mWhiteListedSsids.length == 0) { 3347 return true; 3348 } 3349 3350 if (!mWifiNative.setSsidWhitelist(mWhiteListedSsids)) { 3351 loge("configureSsidWhiteList couldnt program SSID list, size " 3352 + mWhiteListedSsids.length); 3353 return false; 3354 } 3355 3356 logd("configureSsidWhiteList success"); 3357 return true; 3358 } 3359 3360 // In associated more, lazy roam will be looking for 5GHz roam candidate 3361 //Fixme: This is for network selection offload , whole function need to be re-written according 3362 // to the new design 3363 private boolean configureLazyRoam() { 3364 /*boolean status; 3365 if (!useHalBasedAutoJoinOffload()) return false; 3366 3367 WifiNative.WifiLazyRoamParams params = new WifiNative.WifiLazyRoamParams(); 3368 //params.A_band_boost_threshold = mWifiConfigStore.bandPreferenceBoostThreshold5.get(); 3369 //params.A_band_penalty_threshold = mWifiConfigStore.bandPreferencePenaltyThreshold5.get(); 3370 params.A_band_boost_factor = mWifiConfigStore.bandPreferenceBoostFactor5; 3371 params.A_band_penalty_factor = mWifiConfigStore.bandPreferencePenaltyFactor5; 3372 params.A_band_max_boost = 65; 3373 params.lazy_roam_hysteresis = 25; 3374 params.alert_roam_rssi_trigger = -75; 3375 3376 if (DBG) { 3377 Log.e(TAG, "configureLazyRoam " + params.toString()); 3378 } 3379 3380 if (!mWifiNative.setLazyRoam(true, params)) { 3381 3382 Log.e(TAG, "configureLazyRoam couldnt program params"); 3383 3384 return false; 3385 } 3386 if (DBG) { 3387 Log.e(TAG, "configureLazyRoam success"); 3388 }*/ 3389 return true; 3390 } 3391 3392 // In associated more, lazy roam will be looking for 5GHz roam candidate 3393 private boolean stopLazyRoam() { 3394 boolean status; 3395 if (!useHalBasedAutoJoinOffload()) return false; 3396 if (DBG) { 3397 Log.e(TAG, "stopLazyRoam"); 3398 } 3399 return mWifiNative.setLazyRoam(false, null); 3400 } 3401 3402 private boolean startGScanConnectedModeOffload(String reason) { 3403 if (DBG) { 3404 if (reason == null) { 3405 reason = ""; 3406 } 3407 logd("startGScanConnectedModeOffload " + reason); 3408 } 3409 stopGScan("startGScanConnectedModeOffload " + reason); 3410 if (!mScreenOn) return false; 3411 3412 if (USE_PAUSE_SCANS) { 3413 mWifiNative.pauseScan(); 3414 } 3415 mPnoEnabled = configurePno(); 3416 if (mPnoEnabled == false) { 3417 if (USE_PAUSE_SCANS) { 3418 mWifiNative.restartScan(); 3419 } 3420 return false; 3421 } 3422 mLazyRoamEnabled = configureLazyRoam(); 3423 if (mLazyRoamEnabled == false) { 3424 if (USE_PAUSE_SCANS) { 3425 mWifiNative.restartScan(); 3426 } 3427 return false; 3428 } 3429 if (mWifiConfigStore.getLastSelectedConfiguration() == null) { 3430 configureSsidWhiteList(); 3431 } 3432 if (!startConnectedGScan(reason)) { 3433 if (USE_PAUSE_SCANS) { 3434 mWifiNative.restartScan(); 3435 } 3436 return false; 3437 } 3438 if (USE_PAUSE_SCANS) { 3439 mWifiNative.restartScan(); 3440 } 3441 mConnectedModeGScanOffloadStarted = true; 3442 if (DBG) { 3443 logd("startGScanConnectedModeOffload success"); 3444 } 3445 return true; 3446 } 3447 3448 private boolean startGScanDisconnectedModeOffload(String reason) { 3449 if (DBG) { 3450 logd("startGScanDisconnectedModeOffload " + reason); 3451 } 3452 stopGScan("startGScanDisconnectedModeOffload " + reason); 3453 if (USE_PAUSE_SCANS) { 3454 mWifiNative.pauseScan(); 3455 } 3456 mPnoEnabled = configurePno(); 3457 if (mPnoEnabled == false) { 3458 if (USE_PAUSE_SCANS) { 3459 mWifiNative.restartScan(); 3460 } 3461 return false; 3462 } 3463 if (!startDisconnectedGScan(reason)) { 3464 if (USE_PAUSE_SCANS) { 3465 mWifiNative.restartScan(); 3466 } 3467 return false; 3468 } 3469 if (USE_PAUSE_SCANS) { 3470 mWifiNative.restartScan(); 3471 } 3472 return true; 3473 } 3474 3475 private boolean configurePno() { 3476 if (!useHalBasedAutoJoinOffload()) return false; 3477 3478 if (mWifiScanner == null) { 3479 log("configurePno: mWifiScanner is null "); 3480 return true; 3481 } 3482 3483 List<WifiNative.WifiPnoNetwork> llist = null; 3484 //TODO: add getPnoList in WifiQualifiedNetworkSelector 3485 //mWifiAutoJoinController.getPnoList(getCurrentWifiConfiguration()); 3486 if (llist == null || llist.size() == 0) { 3487 stopPnoOffload(); 3488 log("configurePno: empty PNO list "); 3489 return true; 3490 } 3491 if (DBG) { 3492 log("configurePno: got llist size " + llist.size()); 3493 } 3494 3495 // first program the network we want to look for thru the pno API 3496 WifiNative.WifiPnoNetwork list[] 3497 = (WifiNative.WifiPnoNetwork[]) llist.toArray(new WifiNative.WifiPnoNetwork[0]); 3498 3499 if (!mWifiNative.setPnoList(list, WifiStateMachine.this)) { 3500 Log.e(TAG, "Failed to set pno, length = " + list.length); 3501 return false; 3502 } 3503 3504 if (true) { 3505 StringBuilder sb = new StringBuilder(); 3506 for (WifiNative.WifiPnoNetwork network : list) { 3507 sb.append("[").append(network.SSID).append(" auth=").append(network.auth); 3508 sb.append(" flags="); 3509 sb.append(network.flags).append(" rssi").append(network.rssi_threshold); 3510 sb.append("] "); 3511 3512 } 3513 sendMessage(CMD_STARTED_PNO_DBG, 1, (int)mGScanPeriodMilli, sb.toString()); 3514 } 3515 return true; 3516 } 3517 3518 final static int DISCONNECTED_SHORT_SCANS_DURATION_MILLI = 2 * 60 * 1000; 3519 final static int CONNECTED_SHORT_SCANS_DURATION_MILLI = 2 * 60 * 1000; 3520 3521 private boolean startConnectedGScan(String reason) { 3522 // send a scan background request so as to kick firmware 3523 // 5GHz roaming and autojoin 3524 // We do this only if screen is on 3525 WifiScanner.ScanSettings settings; 3526 3527 if (mPnoEnabled || mLazyRoamEnabled) { 3528 settings = new WifiScanner.ScanSettings(); 3529 settings.band = WifiScanner.WIFI_BAND_BOTH; 3530 long now = System.currentTimeMillis(); 3531 3532 if (!mScreenOn || (mGScanStartTimeMilli!= 0 && now > mGScanStartTimeMilli 3533 && ((now - mGScanStartTimeMilli) > CONNECTED_SHORT_SCANS_DURATION_MILLI))) { 3534 settings.periodInMs = mWifiConfigStore.wifiAssociatedLongScanIntervalMilli.get(); 3535 } else { 3536 mGScanStartTimeMilli = now; 3537 settings.periodInMs = mWifiConfigStore.wifiAssociatedShortScanIntervalMilli.get(); 3538 // if we start offload with short interval, then reconfigure it after a given 3539 // duration of time so as to reduce the scan frequency 3540 int delay = 30 * 1000 + CONNECTED_SHORT_SCANS_DURATION_MILLI; 3541 sendMessageDelayed(CMD_RESTART_AUTOJOIN_OFFLOAD, delay, 3542 mRestartAutoJoinOffloadCounter, " startConnectedGScan " + reason, 3543 (long)delay); 3544 mRestartAutoJoinOffloadCounter++; 3545 } 3546 mGScanPeriodMilli = settings.periodInMs; 3547 settings.reportEvents = WifiScanner.REPORT_EVENT_AFTER_BUFFER_FULL; 3548 if (DBG) { 3549 log("startConnectedScan: settings band="+ settings.band 3550 + " period=" + settings.periodInMs); 3551 } 3552 3553 mWifiScanner.startBackgroundScan(settings, mWifiScanListener); 3554 if (true) { 3555 sendMessage(CMD_STARTED_GSCAN_DBG, 1, (int)mGScanPeriodMilli, reason); 3556 } 3557 } 3558 return true; 3559 } 3560 3561 private boolean startDisconnectedGScan(String reason) { 3562 // send a scan background request so as to kick firmware 3563 // PNO 3564 // This is done in both screen On and screen Off modes 3565 WifiScanner.ScanSettings settings; 3566 3567 if (mWifiScanner == null) { 3568 log("startDisconnectedGScan: no wifi scanner"); 3569 return false; 3570 } 3571 3572 if (mPnoEnabled || mLazyRoamEnabled) { 3573 settings = new WifiScanner.ScanSettings(); 3574 settings.band = WifiScanner.WIFI_BAND_BOTH; 3575 long now = System.currentTimeMillis(); 3576 3577 3578 if (!mScreenOn || (mGScanStartTimeMilli != 0 && now > mGScanStartTimeMilli 3579 && ((now - mGScanStartTimeMilli) > DISCONNECTED_SHORT_SCANS_DURATION_MILLI))) { 3580 settings.periodInMs = mWifiConfigStore.wifiDisconnectedLongScanIntervalMilli.get(); 3581 } else { 3582 settings.periodInMs = mWifiConfigStore.wifiDisconnectedShortScanIntervalMilli.get(); 3583 mGScanStartTimeMilli = now; 3584 // if we start offload with short interval, then reconfigure it after a given 3585 // duration of time so as to reduce the scan frequency 3586 int delay = 30 * 1000 + DISCONNECTED_SHORT_SCANS_DURATION_MILLI; 3587 sendMessageDelayed(CMD_RESTART_AUTOJOIN_OFFLOAD, delay, 3588 mRestartAutoJoinOffloadCounter, " startDisconnectedGScan " + reason, 3589 (long)delay); 3590 mRestartAutoJoinOffloadCounter++; 3591 } 3592 mGScanPeriodMilli = settings.periodInMs; 3593 settings.reportEvents = WifiScanner.REPORT_EVENT_AFTER_BUFFER_FULL; 3594 if (DBG) { 3595 log("startDisconnectedScan: settings band="+ settings.band 3596 + " period=" + settings.periodInMs); 3597 } 3598 mWifiScanner.startBackgroundScan(settings, mWifiScanListener); 3599 if (true) { 3600 sendMessage(CMD_STARTED_GSCAN_DBG, 1, (int)mGScanPeriodMilli, reason); 3601 } 3602 } 3603 return true; 3604 } 3605 3606 private boolean stopGScan(String reason) { 3607 mGScanStartTimeMilli = 0; 3608 mGScanPeriodMilli = 0; 3609 if (mWifiScanner != null) { 3610 mWifiScanner.stopBackgroundScan(mWifiScanListener); 3611 } 3612 mConnectedModeGScanOffloadStarted = false; 3613 if (true) { 3614 sendMessage(CMD_STARTED_GSCAN_DBG, 0, 0, reason); 3615 } 3616 return true; 3617 } 3618 3619 private void handleScreenStateChanged(boolean screenOn) { 3620 mScreenOn = screenOn; 3621 if (PDBG) { 3622 logd(" handleScreenStateChanged Enter: screenOn=" + screenOn 3623 + " mUserWantsSuspendOpt=" + mUserWantsSuspendOpt 3624 + " state " + getCurrentState().getName() 3625 + " suppState:" + mSupplicantStateTracker.getSupplicantStateName()); 3626 } 3627 enableRssiPolling(screenOn); 3628 if (mUserWantsSuspendOpt.get()) { 3629 if (screenOn) { 3630 sendMessage(CMD_SET_SUSPEND_OPT_ENABLED, 0, 0); 3631 } else { 3632 // Allow 2s for suspend optimizations to be set 3633 mSuspendWakeLock.acquire(2000); 3634 sendMessage(CMD_SET_SUSPEND_OPT_ENABLED, 1, 0); 3635 } 3636 } 3637 mScreenBroadcastReceived.set(true); 3638 3639 getWifiLinkLayerStats(false); 3640 mOnTimeScreenStateChange = mOnTime; 3641 lastScreenStateChangeTimeStamp = lastLinkLayerStatsUpdate; 3642 3643 cancelDelayedScan(); 3644 3645 if (screenOn) { 3646 enableBackgroundScan(false); 3647 setScanAlarm(false); 3648 clearBlacklist(); 3649 3650 fullBandConnectedTimeIntervalMilli 3651 = mWifiConfigStore.wifiAssociatedShortScanIntervalMilli.get(); 3652 // In either Disconnectedstate or ConnectedState, 3653 // start the scan alarm so as to enable autojoin 3654 if (getCurrentState() == mConnectedState 3655 && allowFullBandScanAndAssociated()) { 3656 if (useHalBasedAutoJoinOffload()) { 3657 startGScanConnectedModeOffload("screenOnConnected"); 3658 } else { 3659 // Scan after 500ms 3660 startDelayedScan(500, null, null); 3661 } 3662 } else if (getCurrentState() == mDisconnectedState) { 3663 if (useHalBasedAutoJoinOffload()) { 3664 startGScanDisconnectedModeOffload("screenOnDisconnected"); 3665 } else { 3666 // Scan after 500ms 3667 startDelayedScan(500, null, null); 3668 } 3669 } 3670 } else { 3671 if (getCurrentState() == mDisconnectedState) { 3672 // Screen Off and Disconnected and chipset doesn't support scan offload 3673 // => start scan alarm 3674 // Screen Off and Disconnected and chipset does support scan offload 3675 // => will use scan offload (i.e. background scan) 3676 if (useHalBasedAutoJoinOffload()) { 3677 startGScanDisconnectedModeOffload("screenOffDisconnected"); 3678 } else { 3679 if (!mBackgroundScanSupported) { 3680 setScanAlarm(true); 3681 } else { 3682 if (!mIsScanOngoing) { 3683 enableBackgroundScan(true); 3684 } 3685 } 3686 } 3687 } else { 3688 enableBackgroundScan(false); 3689 if (useHalBasedAutoJoinOffload()) { 3690 // don't try stop Gscan if it is not enabled 3691 stopGScan("ScreenOffStop(enableBackground=" + mLegacyPnoEnabled + ") "); 3692 } 3693 } 3694 } 3695 if (DBG) logd("backgroundScan enabled=" + mLegacyPnoEnabled); 3696 3697 if (DBG) log("handleScreenStateChanged Exit: " + screenOn); 3698 } 3699 3700 private void checkAndSetConnectivityInstance() { 3701 if (mCm == null) { 3702 mCm = (ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 3703 } 3704 } 3705 3706 private boolean startTethering(ArrayList<String> available) { 3707 3708 boolean wifiAvailable = false; 3709 3710 checkAndSetConnectivityInstance(); 3711 3712 String[] wifiRegexs = mCm.getTetherableWifiRegexs(); 3713 3714 for (String intf : available) { 3715 for (String regex : wifiRegexs) { 3716 if (intf.matches(regex)) { 3717 3718 InterfaceConfiguration ifcg = null; 3719 try { 3720 ifcg = mNwService.getInterfaceConfig(intf); 3721 if (ifcg != null) { 3722 /* IP/netmask: 192.168.43.1/255.255.255.0 */ 3723 ifcg.setLinkAddress(new LinkAddress( 3724 NetworkUtils.numericToInetAddress("192.168.43.1"), 24)); 3725 ifcg.setInterfaceUp(); 3726 3727 mNwService.setInterfaceConfig(intf, ifcg); 3728 } 3729 } catch (Exception e) { 3730 loge("Error configuring interface " + intf + ", :" + e); 3731 return false; 3732 } 3733 3734 if (mCm.tether(intf) != ConnectivityManager.TETHER_ERROR_NO_ERROR) { 3735 loge("Error tethering on " + intf); 3736 return false; 3737 } 3738 mTetherInterfaceName = intf; 3739 return true; 3740 } 3741 } 3742 } 3743 // We found no interfaces to tether 3744 return false; 3745 } 3746 3747 private void stopTethering() { 3748 3749 checkAndSetConnectivityInstance(); 3750 3751 /* Clear the interface config to allow dhcp correctly configure new 3752 ip settings */ 3753 InterfaceConfiguration ifcg = null; 3754 try { 3755 ifcg = mNwService.getInterfaceConfig(mTetherInterfaceName); 3756 if (ifcg != null) { 3757 ifcg.setLinkAddress( 3758 new LinkAddress(NetworkUtils.numericToInetAddress("0.0.0.0"), 0)); 3759 mNwService.setInterfaceConfig(mTetherInterfaceName, ifcg); 3760 } 3761 } catch (Exception e) { 3762 loge("Error resetting interface " + mTetherInterfaceName + ", :" + e); 3763 } 3764 3765 if (mCm.untether(mTetherInterfaceName) != ConnectivityManager.TETHER_ERROR_NO_ERROR) { 3766 loge("Untether initiate failed!"); 3767 } 3768 } 3769 3770 private boolean isWifiTethered(ArrayList<String> active) { 3771 3772 checkAndSetConnectivityInstance(); 3773 3774 String[] wifiRegexs = mCm.getTetherableWifiRegexs(); 3775 for (String intf : active) { 3776 for (String regex : wifiRegexs) { 3777 if (intf.matches(regex)) { 3778 return true; 3779 } 3780 } 3781 } 3782 // We found no interfaces that are tethered 3783 return false; 3784 } 3785 3786 /** 3787 * Set the country code from the system setting value, if any. 3788 */ 3789 private void initializeCountryCode() { 3790 String countryCode = getCurrentCountryCode(); 3791 if (countryCode != null && !countryCode.isEmpty()) { 3792 setCountryCode(countryCode, false); 3793 } else { 3794 //use driver default 3795 } 3796 } 3797 3798 /** 3799 * Set the frequency band from the system setting value, if any. 3800 */ 3801 private void setFrequencyBand() { 3802 int band = mFacade.getIntegerSetting(mContext, 3803 Settings.Global.WIFI_FREQUENCY_BAND, WifiManager.WIFI_FREQUENCY_BAND_AUTO); 3804 3805 if (mWifiNative.setBand(band)) { 3806 mFrequencyBand.set(band); 3807 if (PDBG) { 3808 logd("done set frequency band " + band); 3809 mWifiQualifiedNetworkSelector.setUserPreferedBand(band); 3810 } 3811 } else { 3812 loge("Failed to set frequency band " + band); 3813 } 3814 } 3815 3816 private void setSuspendOptimizationsNative(int reason, boolean enabled) { 3817 if (DBG) { 3818 log("setSuspendOptimizationsNative: " + reason + " " + enabled 3819 + " -want " + mUserWantsSuspendOpt.get() 3820 + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 3821 + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() 3822 + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() 3823 + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); 3824 } 3825 //mWifiNative.setSuspendOptimizations(enabled); 3826 3827 if (enabled) { 3828 mSuspendOptNeedsDisabled &= ~reason; 3829 /* None of dhcp, screen or highperf need it disabled and user wants it enabled */ 3830 if (mSuspendOptNeedsDisabled == 0 && mUserWantsSuspendOpt.get()) { 3831 if (DBG) { 3832 log("setSuspendOptimizationsNative do it " + reason + " " + enabled 3833 + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 3834 + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() 3835 + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() 3836 + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); 3837 } 3838 mWifiNative.setSuspendOptimizations(true); 3839 } 3840 } else { 3841 mSuspendOptNeedsDisabled |= reason; 3842 mWifiNative.setSuspendOptimizations(false); 3843 } 3844 } 3845 3846 private void setSuspendOptimizations(int reason, boolean enabled) { 3847 if (DBG) log("setSuspendOptimizations: " + reason + " " + enabled); 3848 if (enabled) { 3849 mSuspendOptNeedsDisabled &= ~reason; 3850 } else { 3851 mSuspendOptNeedsDisabled |= reason; 3852 } 3853 if (DBG) log("mSuspendOptNeedsDisabled " + mSuspendOptNeedsDisabled); 3854 } 3855 3856 private void setWifiState(int wifiState) { 3857 final int previousWifiState = mWifiState.get(); 3858 3859 try { 3860 if (wifiState == WIFI_STATE_ENABLED) { 3861 mBatteryStats.noteWifiOn(); 3862 } else if (wifiState == WIFI_STATE_DISABLED) { 3863 mBatteryStats.noteWifiOff(); 3864 } 3865 } catch (RemoteException e) { 3866 loge("Failed to note battery stats in wifi"); 3867 } 3868 3869 mWifiState.set(wifiState); 3870 3871 if (DBG) log("setWifiState: " + syncGetWifiStateByName()); 3872 3873 final Intent intent = new Intent(WifiManager.WIFI_STATE_CHANGED_ACTION); 3874 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3875 intent.putExtra(WifiManager.EXTRA_WIFI_STATE, wifiState); 3876 intent.putExtra(WifiManager.EXTRA_PREVIOUS_WIFI_STATE, previousWifiState); 3877 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 3878 } 3879 3880 private void setWifiApState(int wifiApState, int reason) { 3881 final int previousWifiApState = mWifiApState.get(); 3882 3883 try { 3884 if (wifiApState == WIFI_AP_STATE_ENABLED) { 3885 mBatteryStats.noteWifiOn(); 3886 } else if (wifiApState == WIFI_AP_STATE_DISABLED) { 3887 mBatteryStats.noteWifiOff(); 3888 } 3889 } catch (RemoteException e) { 3890 loge("Failed to note battery stats in wifi"); 3891 } 3892 3893 // Update state 3894 mWifiApState.set(wifiApState); 3895 3896 if (DBG) log("setWifiApState: " + syncGetWifiApStateByName()); 3897 3898 final Intent intent = new Intent(WifiManager.WIFI_AP_STATE_CHANGED_ACTION); 3899 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3900 intent.putExtra(WifiManager.EXTRA_WIFI_AP_STATE, wifiApState); 3901 intent.putExtra(WifiManager.EXTRA_PREVIOUS_WIFI_AP_STATE, previousWifiApState); 3902 if (wifiApState == WifiManager.WIFI_AP_STATE_FAILED) { 3903 //only set reason number when softAP start failed 3904 intent.putExtra(WifiManager.EXTRA_WIFI_AP_FAILURE_REASON, reason); 3905 } 3906 3907 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 3908 } 3909 3910 private void setScanResults() { 3911 mNumScanResultsKnown = 0; 3912 mNumScanResultsReturned = 0; 3913 3914 ArrayList<ScanDetail> scanResults = mWifiNative.getScanResults(); 3915 3916 if (scanResults.isEmpty()) { 3917 mScanResults = new ArrayList<>(); 3918 return; 3919 } 3920 3921 mWifiConfigStore.trimANQPCache(false); 3922 3923 synchronized (mScanResultCache) { 3924 mScanResults = scanResults; 3925 mNumScanResultsReturned = mScanResults.size(); 3926 for (ScanDetail resultDetail : mScanResults) { 3927 mScanResultCache.put(resultDetail.getNetworkDetail(), resultDetail); 3928 } 3929 } 3930 if (mNumScanResultsReturned > 0) { 3931 mWifiMetrics.incrementNonEmptyScanResultCount(); 3932 } else { 3933 mWifiMetrics.incrementEmptyScanResultCount(); 3934 } 3935 3936 mWifiQualifiedNetworkSelector.selectQualifiedNetwork(false); 3937 3938 if (linkDebouncing) { 3939 // If debouncing, we dont re-select a SSID or BSSID hence 3940 // there is no need to call the network selection code 3941 // in WifiAutoJoinController, instead, 3942 // just try to reconnect to the same SSID by triggering a roam 3943 // The third parameter 1 means roam not from network selection but debouncing 3944 sendMessage(CMD_AUTO_ROAM, mLastNetworkId, 1, null); 3945 } 3946 } 3947 3948 /* 3949 * Fetch RSSI, linkspeed, and frequency on current connection 3950 */ 3951 private void fetchRssiLinkSpeedAndFrequencyNative() { 3952 Integer newRssi = null; 3953 Integer newLinkSpeed = null; 3954 Integer newFrequency = null; 3955 3956 String signalPoll = mWifiNative.signalPoll(); 3957 3958 if (signalPoll != null) { 3959 String[] lines = signalPoll.split("\n"); 3960 for (String line : lines) { 3961 String[] prop = line.split("="); 3962 if (prop.length < 2) continue; 3963 try { 3964 if (prop[0].equals("RSSI")) { 3965 newRssi = Integer.parseInt(prop[1]); 3966 } else if (prop[0].equals("LINKSPEED")) { 3967 newLinkSpeed = Integer.parseInt(prop[1]); 3968 } else if (prop[0].equals("FREQUENCY")) { 3969 newFrequency = Integer.parseInt(prop[1]); 3970 } 3971 } catch (NumberFormatException e) { 3972 //Ignore, defaults on rssi and linkspeed are assigned 3973 } 3974 } 3975 } 3976 3977 if (PDBG) { 3978 logd("fetchRssiLinkSpeedAndFrequencyNative rssi=" + newRssi + 3979 " linkspeed=" + newLinkSpeed + " freq=" + newFrequency); 3980 } 3981 3982 if (newRssi != null && newRssi > WifiInfo.INVALID_RSSI && newRssi < WifiInfo.MAX_RSSI) { 3983 // screen out invalid values 3984 /* some implementations avoid negative values by adding 256 3985 * so we need to adjust for that here. 3986 */ 3987 if (newRssi > 0) newRssi -= 256; 3988 mWifiInfo.setRssi(newRssi); 3989 /* 3990 * Rather then sending the raw RSSI out every time it 3991 * changes, we precalculate the signal level that would 3992 * be displayed in the status bar, and only send the 3993 * broadcast if that much more coarse-grained number 3994 * changes. This cuts down greatly on the number of 3995 * broadcasts, at the cost of not informing others 3996 * interested in RSSI of all the changes in signal 3997 * level. 3998 */ 3999 int newSignalLevel = WifiManager.calculateSignalLevel(newRssi, WifiManager.RSSI_LEVELS); 4000 if (newSignalLevel != mLastSignalLevel) { 4001 updateCapabilities(getCurrentWifiConfiguration()); 4002 sendRssiChangeBroadcast(newRssi); 4003 } 4004 mLastSignalLevel = newSignalLevel; 4005 } else { 4006 mWifiInfo.setRssi(WifiInfo.INVALID_RSSI); 4007 updateCapabilities(getCurrentWifiConfiguration()); 4008 } 4009 4010 if (newLinkSpeed != null) { 4011 mWifiInfo.setLinkSpeed(newLinkSpeed); 4012 } 4013 if (newFrequency != null && newFrequency > 0) { 4014 if (ScanResult.is5GHz(newFrequency)) { 4015 mWifiConnectionStatistics.num5GhzConnected++; 4016 } 4017 if (ScanResult.is24GHz(newFrequency)) { 4018 mWifiConnectionStatistics.num24GhzConnected++; 4019 } 4020 mWifiInfo.setFrequency(newFrequency); 4021 } 4022 mWifiConfigStore.updateConfiguration(mWifiInfo); 4023 } 4024 4025 /** 4026 * Determine if we need to switch network: 4027 * - the delta determine the urgency to switch and/or or the expected evilness of the disruption 4028 * - match the uregncy of the switch versus the packet usage at the interface 4029 */ 4030 boolean shouldSwitchNetwork(int networkDelta) { 4031 int delta; 4032 if (networkDelta <= 0) { 4033 return false; 4034 } 4035 delta = networkDelta; 4036 if (mWifiInfo != null) { 4037 if (!getEnableAutoJoinWhenAssociated() 4038 && mWifiInfo.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID) { 4039 // If AutoJoin while associated is not enabled, 4040 // we should never switch network when already associated 4041 delta = -1000; 4042 } else { 4043 // TODO: Look at per AC packet count, do not switch if VO/VI traffic is present 4044 // TODO: at the interface. We should also discriminate between ucast and mcast, 4045 // TODO: since the rxSuccessRate include all the bonjour and Ipv6 4046 // TODO: broadcasts 4047 if ((mWifiInfo.txSuccessRate > 20) || (mWifiInfo.rxSuccessRate > 80)) { 4048 delta -= 999; 4049 } else if ((mWifiInfo.txSuccessRate > 5) || (mWifiInfo.rxSuccessRate > 30)) { 4050 delta -= 6; 4051 } 4052 logd("shouldSwitchNetwork " 4053 + " txSuccessRate=" + String.format("%.2f", mWifiInfo.txSuccessRate) 4054 + " rxSuccessRate=" + String.format("%.2f", mWifiInfo.rxSuccessRate) 4055 + " delta " + networkDelta + " -> " + delta); 4056 } 4057 } else { 4058 logd("shouldSwitchNetwork " 4059 + " delta " + networkDelta + " -> " + delta); 4060 } 4061 if (delta > 0) { 4062 return true; 4063 } 4064 return false; 4065 } 4066 4067 // Polling has completed, hence we wont have a score anymore 4068 private void cleanWifiScore() { 4069 mWifiInfo.txBadRate = 0; 4070 mWifiInfo.txSuccessRate = 0; 4071 mWifiInfo.txRetriesRate = 0; 4072 mWifiInfo.rxSuccessRate = 0; 4073 } 4074 4075 int mBadLinkspeedcount = 0; 4076 4077 // For debug, provide information about the last scoring operation 4078 String wifiScoringReport = null; 4079 4080 private void calculateWifiScore(WifiLinkLayerStats stats) { 4081 StringBuilder sb = new StringBuilder(); 4082 4083 int score = 56; // Starting score, temporarily hardcoded in between 50 and 60 4084 boolean isBadLinkspeed = (mWifiInfo.is24GHz() 4085 && mWifiInfo.getLinkSpeed() < mWifiConfigStore.badLinkSpeed24) 4086 || (mWifiInfo.is5GHz() && mWifiInfo.getLinkSpeed() 4087 < mWifiConfigStore.badLinkSpeed5); 4088 boolean isGoodLinkspeed = (mWifiInfo.is24GHz() 4089 && mWifiInfo.getLinkSpeed() >= mWifiConfigStore.goodLinkSpeed24) 4090 || (mWifiInfo.is5GHz() && mWifiInfo.getLinkSpeed() 4091 >= mWifiConfigStore.goodLinkSpeed5); 4092 4093 if (isBadLinkspeed) { 4094 if (mBadLinkspeedcount < 6) 4095 mBadLinkspeedcount++; 4096 } else { 4097 if (mBadLinkspeedcount > 0) 4098 mBadLinkspeedcount--; 4099 } 4100 4101 if (isBadLinkspeed) sb.append(" bl(").append(mBadLinkspeedcount).append(")"); 4102 if (isGoodLinkspeed) sb.append(" gl"); 4103 4104 /** 4105 * We want to make sure that we use the 24GHz RSSI thresholds if 4106 * there are 2.4GHz scan results 4107 * otherwise we end up lowering the score based on 5GHz values 4108 * which may cause a switch to LTE before roaming has a chance to try 2.4GHz 4109 * We also might unblacklist the configuation based on 2.4GHz 4110 * thresholds but joining 5GHz anyhow, and failing over to 2.4GHz because 5GHz is not good 4111 */ 4112 boolean use24Thresholds = false; 4113 boolean homeNetworkBoost = false; 4114 WifiConfiguration currentConfiguration = getCurrentWifiConfiguration(); 4115 ScanDetailCache scanDetailCache = 4116 mWifiConfigStore.getScanDetailCache(currentConfiguration); 4117 if (currentConfiguration != null && scanDetailCache != null) { 4118 currentConfiguration.setVisibility(scanDetailCache.getVisibility(12000)); 4119 if (currentConfiguration.visibility != null) { 4120 if (currentConfiguration.visibility.rssi24 != WifiConfiguration.INVALID_RSSI 4121 && currentConfiguration.visibility.rssi24 4122 >= (currentConfiguration.visibility.rssi5 - 2)) { 4123 use24Thresholds = true; 4124 } 4125 } 4126 if (scanDetailCache.size() <= 6 4127 && currentConfiguration.allowedKeyManagement.cardinality() == 1 4128 && currentConfiguration.allowedKeyManagement. 4129 get(WifiConfiguration.KeyMgmt.WPA_PSK) == true) { 4130 // A PSK network with less than 6 known BSSIDs 4131 // This is most likely a home network and thus we want to stick to wifi more 4132 homeNetworkBoost = true; 4133 } 4134 } 4135 if (homeNetworkBoost) sb.append(" hn"); 4136 if (use24Thresholds) sb.append(" u24"); 4137 4138 int rssi = mWifiInfo.getRssi() - 6 * mAggressiveHandover 4139 + (homeNetworkBoost ? WifiConfiguration.HOME_NETWORK_RSSI_BOOST : 0); 4140 sb.append(String.format(" rssi=%d ag=%d", rssi, mAggressiveHandover)); 4141 4142 boolean is24GHz = use24Thresholds || mWifiInfo.is24GHz(); 4143 4144 boolean isBadRSSI = (is24GHz && rssi < mWifiConfigStore.thresholdMinimumRssi24.get()) 4145 || (!is24GHz && rssi < mWifiConfigStore.thresholdMinimumRssi5.get()); 4146 boolean isLowRSSI = (is24GHz && rssi < mWifiConfigStore.thresholdQualifiedRssi24.get()) 4147 || (!is24GHz && mWifiInfo.getRssi() < mWifiConfigStore.thresholdMinimumRssi5.get()); 4148 boolean isHighRSSI = (is24GHz && rssi >= mWifiConfigStore.thresholdSaturatedRssi24.get()) 4149 || (!is24GHz && mWifiInfo.getRssi() 4150 >= mWifiConfigStore.thresholdSaturatedRssi5.get()); 4151 4152 if (isBadRSSI) sb.append(" br"); 4153 if (isLowRSSI) sb.append(" lr"); 4154 if (isHighRSSI) sb.append(" hr"); 4155 4156 int penalizedDueToUserTriggeredDisconnect = 0; // For debug information 4157 if (currentConfiguration != null && 4158 (mWifiInfo.txSuccessRate > 5 || mWifiInfo.rxSuccessRate > 5)) { 4159 if (isBadRSSI) { 4160 currentConfiguration.numTicksAtBadRSSI++; 4161 if (currentConfiguration.numTicksAtBadRSSI > 1000) { 4162 // We remained associated for a compound amount of time while passing 4163 // traffic, hence loose the corresponding user triggered disabled stats 4164 if (currentConfiguration.numUserTriggeredWifiDisableBadRSSI > 0) { 4165 currentConfiguration.numUserTriggeredWifiDisableBadRSSI--; 4166 } 4167 if (currentConfiguration.numUserTriggeredWifiDisableLowRSSI > 0) { 4168 currentConfiguration.numUserTriggeredWifiDisableLowRSSI--; 4169 } 4170 if (currentConfiguration.numUserTriggeredWifiDisableNotHighRSSI > 0) { 4171 currentConfiguration.numUserTriggeredWifiDisableNotHighRSSI--; 4172 } 4173 currentConfiguration.numTicksAtBadRSSI = 0; 4174 } 4175 if (mWifiConfigStore.enableWifiCellularHandoverUserTriggeredAdjustment && 4176 (currentConfiguration.numUserTriggeredWifiDisableBadRSSI > 0 4177 || currentConfiguration.numUserTriggeredWifiDisableLowRSSI > 0 4178 || currentConfiguration.numUserTriggeredWifiDisableNotHighRSSI > 0)) { 4179 score = score - 5; 4180 penalizedDueToUserTriggeredDisconnect = 1; 4181 sb.append(" p1"); 4182 } 4183 } else if (isLowRSSI) { 4184 currentConfiguration.numTicksAtLowRSSI++; 4185 if (currentConfiguration.numTicksAtLowRSSI > 1000) { 4186 // We remained associated for a compound amount of time while passing 4187 // traffic, hence loose the corresponding user triggered disabled stats 4188 if (currentConfiguration.numUserTriggeredWifiDisableLowRSSI > 0) { 4189 currentConfiguration.numUserTriggeredWifiDisableLowRSSI--; 4190 } 4191 if (currentConfiguration.numUserTriggeredWifiDisableNotHighRSSI > 0) { 4192 currentConfiguration.numUserTriggeredWifiDisableNotHighRSSI--; 4193 } 4194 currentConfiguration.numTicksAtLowRSSI = 0; 4195 } 4196 if (mWifiConfigStore.enableWifiCellularHandoverUserTriggeredAdjustment && 4197 (currentConfiguration.numUserTriggeredWifiDisableLowRSSI > 0 4198 || currentConfiguration.numUserTriggeredWifiDisableNotHighRSSI > 0)) { 4199 score = score - 5; 4200 penalizedDueToUserTriggeredDisconnect = 2; 4201 sb.append(" p2"); 4202 } 4203 } else if (!isHighRSSI) { 4204 currentConfiguration.numTicksAtNotHighRSSI++; 4205 if (currentConfiguration.numTicksAtNotHighRSSI > 1000) { 4206 // We remained associated for a compound amount of time while passing 4207 // traffic, hence loose the corresponding user triggered disabled stats 4208 if (currentConfiguration.numUserTriggeredWifiDisableNotHighRSSI > 0) { 4209 currentConfiguration.numUserTriggeredWifiDisableNotHighRSSI--; 4210 } 4211 currentConfiguration.numTicksAtNotHighRSSI = 0; 4212 } 4213 if (mWifiConfigStore.enableWifiCellularHandoverUserTriggeredAdjustment && 4214 currentConfiguration.numUserTriggeredWifiDisableNotHighRSSI > 0) { 4215 score = score - 5; 4216 penalizedDueToUserTriggeredDisconnect = 3; 4217 sb.append(" p3"); 4218 } 4219 } 4220 sb.append(String.format(" ticks %d,%d,%d", currentConfiguration.numTicksAtBadRSSI, 4221 currentConfiguration.numTicksAtLowRSSI, 4222 currentConfiguration.numTicksAtNotHighRSSI)); 4223 } 4224 4225 if (PDBG) { 4226 String rssiStatus = ""; 4227 if (isBadRSSI) rssiStatus += " badRSSI "; 4228 else if (isHighRSSI) rssiStatus += " highRSSI "; 4229 else if (isLowRSSI) rssiStatus += " lowRSSI "; 4230 if (isBadLinkspeed) rssiStatus += " lowSpeed "; 4231 logd("calculateWifiScore freq=" + Integer.toString(mWifiInfo.getFrequency()) 4232 + " speed=" + Integer.toString(mWifiInfo.getLinkSpeed()) 4233 + " score=" + Integer.toString(mWifiInfo.score) 4234 + rssiStatus 4235 + " -> txbadrate=" + String.format("%.2f", mWifiInfo.txBadRate) 4236 + " txgoodrate=" + String.format("%.2f", mWifiInfo.txSuccessRate) 4237 + " txretriesrate=" + String.format("%.2f", mWifiInfo.txRetriesRate) 4238 + " rxrate=" + String.format("%.2f", mWifiInfo.rxSuccessRate) 4239 + " userTriggerdPenalty" + penalizedDueToUserTriggeredDisconnect); 4240 } 4241 4242 if ((mWifiInfo.txBadRate >= 1) && (mWifiInfo.txSuccessRate < 3) 4243 && (isBadRSSI || isLowRSSI)) { 4244 // Link is stuck 4245 if (mWifiInfo.linkStuckCount < 5) 4246 mWifiInfo.linkStuckCount += 1; 4247 sb.append(String.format(" ls+=%d", mWifiInfo.linkStuckCount)); 4248 if (PDBG) logd(" bad link -> stuck count =" 4249 + Integer.toString(mWifiInfo.linkStuckCount)); 4250 } else if (mWifiInfo.txBadRate < 0.3) { 4251 if (mWifiInfo.linkStuckCount > 0) 4252 mWifiInfo.linkStuckCount -= 1; 4253 sb.append(String.format(" ls-=%d", mWifiInfo.linkStuckCount)); 4254 if (PDBG) logd(" good link -> stuck count =" 4255 + Integer.toString(mWifiInfo.linkStuckCount)); 4256 } 4257 4258 sb.append(String.format(" [%d", score)); 4259 4260 if (mWifiInfo.linkStuckCount > 1) { 4261 // Once link gets stuck for more than 3 seconds, start reducing the score 4262 score = score - 2 * (mWifiInfo.linkStuckCount - 1); 4263 } 4264 sb.append(String.format(",%d", score)); 4265 4266 if (isBadLinkspeed) { 4267 score -= 4; 4268 if (PDBG) { 4269 logd(" isBadLinkspeed ---> count=" + mBadLinkspeedcount 4270 + " score=" + Integer.toString(score)); 4271 } 4272 } else if ((isGoodLinkspeed) && (mWifiInfo.txSuccessRate > 5)) { 4273 score += 4; // So as bad rssi alone dont kill us 4274 } 4275 sb.append(String.format(",%d", score)); 4276 4277 if (isBadRSSI) { 4278 if (mWifiInfo.badRssiCount < 7) 4279 mWifiInfo.badRssiCount += 1; 4280 } else if (isLowRSSI) { 4281 mWifiInfo.lowRssiCount = 1; // Dont increment the lowRssi count above 1 4282 if (mWifiInfo.badRssiCount > 0) { 4283 // Decrement bad Rssi count 4284 mWifiInfo.badRssiCount -= 1; 4285 } 4286 } else { 4287 mWifiInfo.badRssiCount = 0; 4288 mWifiInfo.lowRssiCount = 0; 4289 } 4290 4291 score -= mWifiInfo.badRssiCount * 2 + mWifiInfo.lowRssiCount; 4292 sb.append(String.format(",%d", score)); 4293 4294 if (PDBG) logd(" badRSSI count" + Integer.toString(mWifiInfo.badRssiCount) 4295 + " lowRSSI count" + Integer.toString(mWifiInfo.lowRssiCount) 4296 + " --> score " + Integer.toString(score)); 4297 4298 4299 if (isHighRSSI) { 4300 score += 5; 4301 if (PDBG) logd(" isHighRSSI ---> score=" + Integer.toString(score)); 4302 } 4303 sb.append(String.format(",%d]", score)); 4304 4305 sb.append(String.format(" brc=%d lrc=%d", mWifiInfo.badRssiCount, mWifiInfo.lowRssiCount)); 4306 4307 //sanitize boundaries 4308 if (score > NetworkAgent.WIFI_BASE_SCORE) 4309 score = NetworkAgent.WIFI_BASE_SCORE; 4310 if (score < 0) 4311 score = 0; 4312 4313 //report score 4314 if (score != mWifiInfo.score) { 4315 if (DBG) { 4316 logd("calculateWifiScore() report new score " + Integer.toString(score)); 4317 } 4318 mWifiInfo.score = score; 4319 if (mNetworkAgent != null) { 4320 mNetworkAgent.sendNetworkScore(score); 4321 } 4322 } 4323 wifiScoringReport = sb.toString(); 4324 } 4325 4326 public double getTxPacketRate() { 4327 if (mWifiInfo != null) { 4328 return mWifiInfo.txSuccessRate; 4329 } 4330 return -1; 4331 } 4332 4333 public double getRxPacketRate() { 4334 if (mWifiInfo != null) { 4335 return mWifiInfo.rxSuccessRate; 4336 } 4337 return -1; 4338 } 4339 4340 /** 4341 * Fetch TX packet counters on current connection 4342 */ 4343 private void fetchPktcntNative(RssiPacketCountInfo info) { 4344 String pktcntPoll = mWifiNative.pktcntPoll(); 4345 4346 if (pktcntPoll != null) { 4347 String[] lines = pktcntPoll.split("\n"); 4348 for (String line : lines) { 4349 String[] prop = line.split("="); 4350 if (prop.length < 2) continue; 4351 try { 4352 if (prop[0].equals("TXGOOD")) { 4353 info.txgood = Integer.parseInt(prop[1]); 4354 } else if (prop[0].equals("TXBAD")) { 4355 info.txbad = Integer.parseInt(prop[1]); 4356 } 4357 } catch (NumberFormatException e) { 4358 // Ignore 4359 } 4360 } 4361 } 4362 } 4363 4364 private boolean clearIPv4Address(String iface) { 4365 try { 4366 InterfaceConfiguration ifcg = new InterfaceConfiguration(); 4367 ifcg.setLinkAddress(new LinkAddress("0.0.0.0/0")); 4368 mNwService.setInterfaceConfig(iface, ifcg); 4369 return true; 4370 } catch (RemoteException e) { 4371 return false; 4372 } 4373 } 4374 4375 private boolean isProvisioned(LinkProperties lp) { 4376 return lp.isProvisioned() || 4377 (mWifiConfigStore.isUsingStaticIp(mLastNetworkId) && lp.hasIPv4Address()); 4378 } 4379 4380 /** 4381 * Creates a new LinkProperties object by merging information from various sources. 4382 * <p/> 4383 * This is needed because the information in mLinkProperties comes from multiple sources (DHCP, 4384 * netlink, static configuration, ...). When one of these sources of information has updated 4385 * link properties, we can't just assign them to mLinkProperties or we'd lose track of the 4386 * information that came from other sources. Instead, when one of those sources has new 4387 * information, we update the object that tracks the information from that source and then 4388 * call this method to integrate the change into a new LinkProperties object for subsequent 4389 * comparison with mLinkProperties. 4390 * <p/> 4391 * The information used to build LinkProperties is currently obtained as follows: 4392 * - Interface name: set in the constructor. 4393 * - IPv4 and IPv6 addresses: netlink, passed in by mNetlinkTracker. 4394 * - IPv4 routes, DNS servers, and domains: DHCP. 4395 * - IPv6 routes and DNS servers: netlink, passed in by mNetlinkTracker. 4396 * - HTTP proxy: the wifi config store. 4397 */ 4398 private LinkProperties makeLinkProperties() { 4399 LinkProperties newLp = new LinkProperties(); 4400 4401 // Interface name, proxy, and TCP buffer sizes are locally configured. 4402 newLp.setInterfaceName(mInterfaceName); 4403 newLp.setHttpProxy(mWifiConfigStore.getProxyProperties(mLastNetworkId)); 4404 if (!TextUtils.isEmpty(mTcpBufferSizes)) { 4405 newLp.setTcpBufferSizes(mTcpBufferSizes); 4406 } 4407 4408 // IPv4/v6 addresses, IPv6 routes and IPv6 DNS servers come from netlink. 4409 LinkProperties netlinkLinkProperties = mNetlinkTracker.getLinkProperties(); 4410 newLp.setLinkAddresses(netlinkLinkProperties.getLinkAddresses()); 4411 for (RouteInfo route : netlinkLinkProperties.getRoutes()) { 4412 newLp.addRoute(route); 4413 } 4414 for (InetAddress dns : netlinkLinkProperties.getDnsServers()) { 4415 // Only add likely reachable DNS servers. 4416 // TODO: investigate deleting this. 4417 if (newLp.isReachable(dns)) { 4418 newLp.addDnsServer(dns); 4419 } 4420 } 4421 4422 // IPv4 routes, DNS servers and domains come from mDhcpResults. 4423 synchronized (mDhcpResultsLock) { 4424 // Even when we're using static configuration, we don't need to look at the config 4425 // store, because static IP configuration also populates mDhcpResults. 4426 if ((mDhcpResults != null)) { 4427 for (RouteInfo route : mDhcpResults.getRoutes(mInterfaceName)) { 4428 newLp.addRoute(route); 4429 } 4430 for (InetAddress dns : mDhcpResults.dnsServers) { 4431 // Only add likely reachable DNS servers. 4432 // TODO: investigate deleting this. 4433 if (newLp.isReachable(dns)) { 4434 newLp.addDnsServer(dns); 4435 } 4436 } 4437 newLp.setDomains(mDhcpResults.domains); 4438 } 4439 } 4440 4441 return newLp; 4442 } 4443 4444 private void updateLinkProperties(int reason) { 4445 LinkProperties newLp = makeLinkProperties(); 4446 4447 final boolean linkChanged = !newLp.equals(mLinkProperties); 4448 final boolean wasProvisioned = isProvisioned(mLinkProperties); 4449 final boolean isProvisioned = isProvisioned(newLp); 4450 // TODO: Teach LinkProperties how to understand static assignment 4451 // and simplify all this provisioning change detection logic by 4452 // unifying it under LinkProperties.compareProvisioning(). 4453 final boolean lostProvisioning = 4454 (wasProvisioned && !isProvisioned) || 4455 (mLinkProperties.hasIPv4Address() && !newLp.hasIPv4Address()) || 4456 (mLinkProperties.isIPv6Provisioned() && !newLp.isIPv6Provisioned()); 4457 final DetailedState detailedState = getNetworkDetailedState(); 4458 4459 if (linkChanged) { 4460 if (DBG) { 4461 log("Link configuration changed for netId: " + mLastNetworkId 4462 + " old: " + mLinkProperties + " new: " + newLp); 4463 } 4464 mLinkProperties = newLp; 4465 if (mIpReachabilityMonitor != null) { 4466 mIpReachabilityMonitor.updateLinkProperties(mLinkProperties); 4467 } 4468 if (mNetworkAgent != null) mNetworkAgent.sendLinkProperties(mLinkProperties); 4469 } 4470 4471 if (lostProvisioning) { 4472 log("Lost IP layer provisioning!" + 4473 " was: " + mLinkProperties + 4474 " now: " + newLp); 4475 } 4476 4477 if (DBG) { 4478 StringBuilder sb = new StringBuilder(); 4479 sb.append("updateLinkProperties nid: " + mLastNetworkId); 4480 sb.append(" state: " + detailedState); 4481 sb.append(" reason: " + smToString(reason)); 4482 4483 if (mLinkProperties != null) { 4484 sb.append(" "); 4485 sb.append(getLinkPropertiesSummary(mLinkProperties)); 4486 if (isProvisioned) { 4487 sb.append(" isprov"); 4488 } 4489 } 4490 logd(sb.toString()); 4491 } 4492 4493 // If we just configured or lost IP configuration, do the needful. 4494 // We don't just call handleSuccessfulIpConfiguration() or handleIpConfigurationLost() 4495 // here because those should only be called if we're attempting to connect or already 4496 // connected, whereas updateLinkProperties can be called at any time. 4497 switch (reason) { 4498 case DhcpStateMachine.DHCP_SUCCESS: 4499 case CMD_STATIC_IP_SUCCESS: 4500 // IPv4 provisioning succeded. Advance to connected state. 4501 sendMessage(CMD_IP_CONFIGURATION_SUCCESSFUL); 4502 if (!isProvisioned) { 4503 // Can never happen unless DHCP reports success but isProvisioned thinks the 4504 // resulting configuration is invalid (e.g., no IPv4 address, or the state in 4505 // mLinkProperties is out of sync with reality, or there's a bug in this code). 4506 // TODO: disconnect here instead. If our configuration is not usable, there's no 4507 // point in staying connected, and if mLinkProperties is out of sync with 4508 // reality, that will cause problems in the future. 4509 logd("IPv4 config succeeded, but not provisioned"); 4510 } 4511 break; 4512 4513 case DhcpStateMachine.DHCP_FAILURE: 4514 // DHCP failed. If we're not already provisioned, or we had IPv4 and now lost it, 4515 // give up and disconnect. 4516 // If we're already provisioned (e.g., IPv6-only network), stay connected. 4517 if (!isProvisioned || lostProvisioning) { 4518 sendMessage(CMD_IP_CONFIGURATION_LOST); 4519 } else { 4520 // DHCP failed, but we're provisioned (e.g., if we're on an IPv6-only network). 4521 sendMessage(CMD_IP_CONFIGURATION_SUCCESSFUL); 4522 4523 // To be sure we don't get stuck with a non-working network if all we had is 4524 // IPv4, remove the IPv4 address from the interface (since we're using DHCP, 4525 // and DHCP failed). If we had an IPv4 address before, the deletion of the 4526 // address will cause a CMD_UPDATE_LINKPROPERTIES. If the IPv4 address was 4527 // necessary for provisioning, its deletion will cause us to disconnect. 4528 // 4529 // This shouldn't be needed, because on an IPv4-only network a DHCP failure will 4530 // have empty DhcpResults and thus empty LinkProperties, and isProvisioned will 4531 // not return true if we're using DHCP and don't have an IPv4 default route. So 4532 // for now it's only here for extra redundancy. However, it will increase 4533 // robustness if we move to getting IPv4 routes from netlink as well. 4534 loge("DHCP failure: provisioned, clearing IPv4 address."); 4535 if (!clearIPv4Address(mInterfaceName)) { 4536 sendMessage(CMD_IP_CONFIGURATION_LOST); 4537 } 4538 } 4539 break; 4540 4541 case CMD_STATIC_IP_FAILURE: 4542 // Static configuration was invalid, or an error occurred in applying it. Give up. 4543 sendMessage(CMD_IP_CONFIGURATION_LOST); 4544 break; 4545 4546 case CMD_UPDATE_LINKPROPERTIES: 4547 // IP addresses, DNS servers, etc. changed. Act accordingly. 4548 if (lostProvisioning) { 4549 // We no longer have a usable network configuration. Disconnect. 4550 sendMessage(CMD_IP_CONFIGURATION_LOST); 4551 } else if (!wasProvisioned && isProvisioned) { 4552 // We have a usable IPv6-only config. Advance to connected state. 4553 sendMessage(CMD_IP_CONFIGURATION_SUCCESSFUL); 4554 } 4555 if (linkChanged && getNetworkDetailedState() == DetailedState.CONNECTED) { 4556 // If anything has changed and we're already connected, send out a notification. 4557 sendLinkConfigurationChangedBroadcast(); 4558 } 4559 break; 4560 } 4561 } 4562 4563 /** 4564 * Clears all our link properties. 4565 */ 4566 private void clearLinkProperties() { 4567 // Clear the link properties obtained from DHCP and netlink. 4568 synchronized (mDhcpResultsLock) { 4569 if (mDhcpResults != null) { 4570 mDhcpResults.clear(); 4571 } 4572 } 4573 mNetlinkTracker.clearLinkProperties(); 4574 if (mIpReachabilityMonitor != null) { 4575 mIpReachabilityMonitor.clearLinkProperties(); 4576 } 4577 4578 // Now clear the merged link properties. 4579 mLinkProperties.clear(); 4580 if (mNetworkAgent != null) mNetworkAgent.sendLinkProperties(mLinkProperties); 4581 } 4582 4583 /** 4584 * try to update default route MAC address. 4585 */ 4586 private String updateDefaultRouteMacAddress(int timeout) { 4587 String address = null; 4588 for (RouteInfo route : mLinkProperties.getRoutes()) { 4589 if (route.isDefaultRoute() && route.hasGateway()) { 4590 InetAddress gateway = route.getGateway(); 4591 if (gateway instanceof Inet4Address) { 4592 if (PDBG) { 4593 logd("updateDefaultRouteMacAddress found Ipv4 default :" 4594 + gateway.getHostAddress()); 4595 } 4596 address = macAddressFromRoute(gateway.getHostAddress()); 4597 /* The gateway's MAC address is known */ 4598 if ((address == null) && (timeout > 0)) { 4599 boolean reachable = false; 4600 try { 4601 reachable = gateway.isReachable(timeout); 4602 } catch (Exception e) { 4603 loge("updateDefaultRouteMacAddress exception reaching :" 4604 + gateway.getHostAddress()); 4605 4606 } finally { 4607 if (reachable == true) { 4608 4609 address = macAddressFromRoute(gateway.getHostAddress()); 4610 if (PDBG) { 4611 logd("updateDefaultRouteMacAddress reachable (tried again) :" 4612 + gateway.getHostAddress() + " found " + address); 4613 } 4614 } 4615 } 4616 } 4617 if (address != null) { 4618 mWifiConfigStore.setDefaultGwMacAddress(mLastNetworkId, address); 4619 } 4620 } 4621 } 4622 } 4623 return address; 4624 } 4625 4626 void sendScanResultsAvailableBroadcast(boolean scanSucceeded) { 4627 Intent intent = new Intent(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION); 4628 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 4629 intent.putExtra(WifiManager.EXTRA_RESULTS_UPDATED, scanSucceeded); 4630 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 4631 } 4632 4633 private void sendRssiChangeBroadcast(final int newRssi) { 4634 try { 4635 mBatteryStats.noteWifiRssiChanged(newRssi); 4636 } catch (RemoteException e) { 4637 // Won't happen. 4638 } 4639 Intent intent = new Intent(WifiManager.RSSI_CHANGED_ACTION); 4640 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 4641 intent.putExtra(WifiManager.EXTRA_NEW_RSSI, newRssi); 4642 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 4643 } 4644 4645 private void sendNetworkStateChangeBroadcast(String bssid) { 4646 Intent intent = new Intent(WifiManager.NETWORK_STATE_CHANGED_ACTION); 4647 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 4648 intent.putExtra(WifiManager.EXTRA_NETWORK_INFO, new NetworkInfo(mNetworkInfo)); 4649 intent.putExtra(WifiManager.EXTRA_LINK_PROPERTIES, new LinkProperties(mLinkProperties)); 4650 if (bssid != null) 4651 intent.putExtra(WifiManager.EXTRA_BSSID, bssid); 4652 if (mNetworkInfo.getDetailedState() == DetailedState.VERIFYING_POOR_LINK || 4653 mNetworkInfo.getDetailedState() == DetailedState.CONNECTED) { 4654 // We no longer report MAC address to third-parties and our code does 4655 // not rely on this broadcast, so just send the default MAC address. 4656 WifiInfo sentWifiInfo = new WifiInfo(mWifiInfo); 4657 sentWifiInfo.setMacAddress(WifiInfo.DEFAULT_MAC_ADDRESS); 4658 intent.putExtra(WifiManager.EXTRA_WIFI_INFO, sentWifiInfo); 4659 } 4660 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 4661 } 4662 4663 private WifiInfo getWiFiInfoForUid(int uid) { 4664 if (Binder.getCallingUid() == Process.myUid()) { 4665 return mWifiInfo; 4666 } 4667 4668 WifiInfo result = new WifiInfo(mWifiInfo); 4669 result.setMacAddress(WifiInfo.DEFAULT_MAC_ADDRESS); 4670 4671 IBinder binder = mFacade.getService("package"); 4672 IPackageManager packageManager = IPackageManager.Stub.asInterface(binder); 4673 4674 try { 4675 if (packageManager.checkUidPermission(Manifest.permission.LOCAL_MAC_ADDRESS, 4676 uid) == PackageManager.PERMISSION_GRANTED) { 4677 result.setMacAddress(mWifiInfo.getMacAddress()); 4678 } 4679 } catch (RemoteException e) { 4680 Log.e(TAG, "Error checking receiver permission", e); 4681 } 4682 4683 return result; 4684 } 4685 4686 private void sendLinkConfigurationChangedBroadcast() { 4687 Intent intent = new Intent(WifiManager.LINK_CONFIGURATION_CHANGED_ACTION); 4688 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 4689 intent.putExtra(WifiManager.EXTRA_LINK_PROPERTIES, new LinkProperties(mLinkProperties)); 4690 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 4691 } 4692 4693 private void sendSupplicantConnectionChangedBroadcast(boolean connected) { 4694 Intent intent = new Intent(WifiManager.SUPPLICANT_CONNECTION_CHANGE_ACTION); 4695 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 4696 intent.putExtra(WifiManager.EXTRA_SUPPLICANT_CONNECTED, connected); 4697 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 4698 } 4699 4700 /** 4701 * Record the detailed state of a network. 4702 * 4703 * @param state the new {@code DetailedState} 4704 */ 4705 private boolean setNetworkDetailedState(NetworkInfo.DetailedState state) { 4706 boolean hidden = false; 4707 4708 if (linkDebouncing || isRoaming()) { 4709 // There is generally a confusion in the system about colluding 4710 // WiFi Layer 2 state (as reported by supplicant) and the Network state 4711 // which leads to multiple confusion. 4712 // 4713 // If link is de-bouncing or roaming, we already have an IP address 4714 // as well we were connected and are doing L2 cycles of 4715 // reconnecting or renewing IP address to check that we still have it 4716 // This L2 link flapping should ne be reflected into the Network state 4717 // which is the state of the WiFi Network visible to Layer 3 and applications 4718 // Note that once debouncing and roaming are completed, we will 4719 // set the Network state to where it should be, or leave it as unchanged 4720 // 4721 hidden = true; 4722 } 4723 if (DBG) { 4724 log("setDetailed state, old =" 4725 + mNetworkInfo.getDetailedState() + " and new state=" + state 4726 + " hidden=" + hidden); 4727 } 4728 if (mNetworkInfo.getExtraInfo() != null && mWifiInfo.getSSID() != null 4729 && !mWifiInfo.getSSID().equals(WifiSsid.NONE)) { 4730 // Always indicate that SSID has changed 4731 if (!mNetworkInfo.getExtraInfo().equals(mWifiInfo.getSSID())) { 4732 if (DBG) { 4733 log("setDetailed state send new extra info" + mWifiInfo.getSSID()); 4734 } 4735 mNetworkInfo.setExtraInfo(mWifiInfo.getSSID()); 4736 sendNetworkStateChangeBroadcast(null); 4737 } 4738 } 4739 if (hidden == true) { 4740 return false; 4741 } 4742 4743 if (state != mNetworkInfo.getDetailedState()) { 4744 mNetworkInfo.setDetailedState(state, null, mWifiInfo.getSSID()); 4745 if (mNetworkAgent != null) { 4746 mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4747 } 4748 sendNetworkStateChangeBroadcast(null); 4749 return true; 4750 } 4751 return false; 4752 } 4753 4754 private DetailedState getNetworkDetailedState() { 4755 return mNetworkInfo.getDetailedState(); 4756 } 4757 4758 private SupplicantState handleSupplicantStateChange(Message message) { 4759 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 4760 SupplicantState state = stateChangeResult.state; 4761 // Supplicant state change 4762 // [31-13] Reserved for future use 4763 // [8 - 0] Supplicant state (as defined in SupplicantState.java) 4764 // 50023 supplicant_state_changed (custom|1|5) 4765 mWifiInfo.setSupplicantState(state); 4766 // Network id is only valid when we start connecting 4767 if (SupplicantState.isConnecting(state)) { 4768 mWifiInfo.setNetworkId(stateChangeResult.networkId); 4769 } else { 4770 mWifiInfo.setNetworkId(WifiConfiguration.INVALID_NETWORK_ID); 4771 } 4772 4773 mWifiInfo.setBSSID(stateChangeResult.BSSID); 4774 4775 if (mWhiteListedSsids != null 4776 && mWhiteListedSsids.length > 0 4777 && stateChangeResult.wifiSsid != null) { 4778 String SSID = stateChangeResult.wifiSsid.toString(); 4779 String currentSSID = mWifiInfo.getSSID(); 4780 if (SSID != null && currentSSID != null && !SSID.equals(WifiSsid.NONE)) { 4781 // Remove quote before comparing 4782 if (SSID.length() >= 2 && SSID.charAt(0) == '"' 4783 && SSID.charAt(SSID.length() - 1) == '"') { 4784 SSID = SSID.substring(1, SSID.length() - 1); 4785 } 4786 if (currentSSID.length() >= 2 && currentSSID.charAt(0) == '"' 4787 && currentSSID.charAt(currentSSID.length() - 1) == '"') { 4788 currentSSID = currentSSID.substring(1, currentSSID.length() - 1); 4789 } 4790 if ((!SSID.equals(currentSSID)) && (getCurrentState() == mConnectedState)) { 4791 lastConnectAttemptTimestamp = System.currentTimeMillis(); 4792 //Create new connection event for connection attempt. 4793 mWifiMetrics.startConnectionEvent(mWifiInfo, 4794 WifiMetricsProto.ConnectionEvent.ROAM_ENTERPRISE); 4795 targetWificonfiguration = 4796 mWifiConfigStore.getWifiConfiguration(mWifiInfo.getNetworkId()); 4797 transitionTo(mRoamingState); 4798 } 4799 } 4800 } 4801 4802 mWifiInfo.setSSID(stateChangeResult.wifiSsid); 4803 mWifiInfo.setEphemeral(mWifiConfigStore.isEphemeral(mWifiInfo.getNetworkId())); 4804 4805 mSupplicantStateTracker.sendMessage(Message.obtain(message)); 4806 4807 return state; 4808 } 4809 4810 /** 4811 * Resets the Wi-Fi Connections by clearing any state, resetting any sockets 4812 * using the interface, stopping DHCP & disabling interface 4813 */ 4814 private void handleNetworkDisconnect() { 4815 if (DBG) log("handleNetworkDisconnect: Stopping DHCP and clearing IP" 4816 + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 4817 + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() 4818 + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() 4819 + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); 4820 4821 stopRssiMonitoringOffload(); 4822 4823 clearCurrentConfigBSSID("handleNetworkDisconnect"); 4824 4825 stopDhcp(); 4826 4827 try { 4828 mNwService.clearInterfaceAddresses(mInterfaceName); 4829 mNwService.disableIpv6(mInterfaceName); 4830 } catch (Exception e) { 4831 loge("Failed to clear addresses or disable ipv6" + e); 4832 } 4833 4834 /* Reset data structures */ 4835 mBadLinkspeedcount = 0; 4836 mWifiInfo.reset(); 4837 linkDebouncing = false; 4838 /* Reset roaming parameters */ 4839 mAutoRoaming = false; 4840 4841 /** 4842 * fullBandConnectedTimeIntervalMilli: 4843 * - start scans at mWifiConfigStore.wifiAssociatedShortScanIntervalMilli seconds interval 4844 * - exponentially increase to mWifiConfigStore.associatedFullScanMaxIntervalMilli 4845 * Initialize to sane value = 20 seconds 4846 */ 4847 fullBandConnectedTimeIntervalMilli = 20 * 1000; 4848 4849 setNetworkDetailedState(DetailedState.DISCONNECTED); 4850 if (mNetworkAgent != null) { 4851 mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4852 mNetworkAgent = null; 4853 } 4854 mWifiConfigStore.updateStatus(mLastNetworkId, DetailedState.DISCONNECTED); 4855 4856 /* Clear network properties */ 4857 clearLinkProperties(); 4858 4859 /* Cend event to CM & network change broadcast */ 4860 sendNetworkStateChangeBroadcast(mLastBssid); 4861 4862 /* Cancel auto roam requests */ 4863 autoRoamSetBSSID(mLastNetworkId, "any"); 4864 mTargetNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 4865 mLastBssid = null; 4866 registerDisconnected(); 4867 mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 4868 } 4869 4870 private void handleSupplicantConnectionLoss(boolean killSupplicant) { 4871 /* Socket connection can be lost when we do a graceful shutdown 4872 * or when the driver is hung. Ensure supplicant is stopped here. 4873 */ 4874 if (killSupplicant) { 4875 mWifiMonitor.killSupplicant(mP2pSupported); 4876 } 4877 mWifiNative.closeSupplicantConnection(); 4878 sendSupplicantConnectionChangedBroadcast(false); 4879 setWifiState(WIFI_STATE_DISABLED); 4880 } 4881 4882 void handlePreDhcpSetup() { 4883 mDhcpActive = true; 4884 if (!mBluetoothConnectionActive) { 4885 /* 4886 * There are problems setting the Wi-Fi driver's power 4887 * mode to active when bluetooth coexistence mode is 4888 * enabled or sense. 4889 * <p> 4890 * We set Wi-Fi to active mode when 4891 * obtaining an IP address because we've found 4892 * compatibility issues with some routers with low power 4893 * mode. 4894 * <p> 4895 * In order for this active power mode to properly be set, 4896 * we disable coexistence mode until we're done with 4897 * obtaining an IP address. One exception is if we 4898 * are currently connected to a headset, since disabling 4899 * coexistence would interrupt that connection. 4900 */ 4901 // Disable the coexistence mode 4902 mWifiNative.setBluetoothCoexistenceMode( 4903 mWifiNative.BLUETOOTH_COEXISTENCE_MODE_DISABLED); 4904 } 4905 4906 // Disable power save and suspend optimizations during DHCP 4907 // Note: The order here is important for now. Brcm driver changes 4908 // power settings when we control suspend mode optimizations. 4909 // TODO: Remove this comment when the driver is fixed. 4910 setSuspendOptimizationsNative(SUSPEND_DUE_TO_DHCP, false); 4911 mWifiNative.setPowerSave(false); 4912 4913 // Update link layer stats 4914 getWifiLinkLayerStats(false); 4915 4916 /* P2p discovery breaks dhcp, shut it down in order to get through this */ 4917 Message msg = new Message(); 4918 msg.what = WifiP2pServiceImpl.BLOCK_DISCOVERY; 4919 msg.arg1 = WifiP2pServiceImpl.ENABLED; 4920 msg.arg2 = DhcpStateMachine.CMD_PRE_DHCP_ACTION_COMPLETE; 4921 msg.obj = mDhcpStateMachine; 4922 mWifiP2pChannel.sendMessage(msg); 4923 } 4924 4925 4926 private void maybeInitDhcpStateMachine() { 4927 if (mDhcpStateMachine == null) { 4928 mDhcpStateMachine = mFacade.makeDhcpStateMachine( 4929 mContext, WifiStateMachine.this, mInterfaceName); 4930 } 4931 } 4932 4933 void startDhcp() { 4934 maybeInitDhcpStateMachine(); 4935 mDhcpStateMachine.registerForPreDhcpNotification(); 4936 mDhcpStateMachine.sendMessage(DhcpStateMachine.CMD_START_DHCP); 4937 } 4938 4939 void renewDhcp() { 4940 maybeInitDhcpStateMachine(); 4941 mDhcpStateMachine.registerForPreDhcpNotification(); 4942 mDhcpStateMachine.sendMessage(DhcpStateMachine.CMD_RENEW_DHCP); 4943 } 4944 4945 void stopDhcp() { 4946 if (mDhcpStateMachine != null) { 4947 /* In case we were in middle of DHCP operation restore back powermode */ 4948 handlePostDhcpSetup(); 4949 mDhcpStateMachine.sendMessage(DhcpStateMachine.CMD_STOP_DHCP); 4950 } 4951 } 4952 4953 void handlePostDhcpSetup() { 4954 /* Restore power save and suspend optimizations */ 4955 setSuspendOptimizationsNative(SUSPEND_DUE_TO_DHCP, true); 4956 mWifiNative.setPowerSave(true); 4957 4958 mWifiP2pChannel.sendMessage(WifiP2pServiceImpl.BLOCK_DISCOVERY, 4959 WifiP2pServiceImpl.DISABLED); 4960 4961 // Set the coexistence mode back to its default value 4962 mWifiNative.setBluetoothCoexistenceMode( 4963 mWifiNative.BLUETOOTH_COEXISTENCE_MODE_SENSE); 4964 4965 mDhcpActive = false; 4966 } 4967 4968 void connectScanningService() { 4969 4970 if (mWifiScanner == null) { 4971 mWifiScanner = (WifiScanner) mContext.getSystemService(Context.WIFI_SCANNING_SERVICE); 4972 } 4973 } 4974 4975 private void handleIPv4Success(DhcpResults dhcpResults, int reason) { 4976 4977 if (PDBG) { 4978 logd("handleIPv4Success <" + dhcpResults.toString() + ">"); 4979 logd("link address " + dhcpResults.ipAddress); 4980 } 4981 4982 Inet4Address addr; 4983 synchronized (mDhcpResultsLock) { 4984 mDhcpResults = dhcpResults; 4985 addr = (Inet4Address) dhcpResults.ipAddress.getAddress(); 4986 } 4987 4988 if (isRoaming()) { 4989 int previousAddress = mWifiInfo.getIpAddress(); 4990 int newAddress = NetworkUtils.inetAddressToInt(addr); 4991 if (previousAddress != newAddress) { 4992 logd("handleIPv4Success, roaming and address changed" + 4993 mWifiInfo + " got: " + addr); 4994 } 4995 } 4996 mWifiInfo.setInetAddress(addr); 4997 mWifiInfo.setMeteredHint(dhcpResults.hasMeteredHint()); 4998 updateLinkProperties(reason); 4999 } 5000 5001 private void handleSuccessfulIpConfiguration() { 5002 mLastSignalLevel = -1; // Force update of signal strength 5003 WifiConfiguration c = getCurrentWifiConfiguration(); 5004 if (c != null) { 5005 // Reset IP failure tracking 5006 c.getNetworkSelectionStatus().clearDisableReasonCounter( 5007 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 5008 5009 // Tell the framework whether the newly connected network is trusted or untrusted. 5010 updateCapabilities(c); 5011 } 5012 if (c != null) { 5013 ScanResult result = getCurrentScanResult(); 5014 if (result == null) { 5015 logd("WifiStateMachine: handleSuccessfulIpConfiguration and no scan results" + 5016 c.configKey()); 5017 } else { 5018 // Clear the per BSSID failure count 5019 result.numIpConfigFailures = 0; 5020 // Clear the WHOLE BSSID blacklist, which means supplicant is free to retry 5021 // any BSSID, even though it may already have a non zero ip failure count, 5022 // this will typically happen if the user walks away and come back to his arrea 5023 // TODO: implement blacklisting based on a timer, i.e. keep BSSID blacklisted 5024 // in supplicant for a couple of hours or a day 5025 mWifiConfigStore.clearBssidBlacklist(); 5026 } 5027 } 5028 } 5029 5030 private void handleIPv4Failure(int reason) { 5031 synchronized(mDhcpResultsLock) { 5032 if (mDhcpResults != null) { 5033 mDhcpResults.clear(); 5034 } 5035 } 5036 if (PDBG) { 5037 logd("handleIPv4Failure"); 5038 } 5039 updateLinkProperties(reason); 5040 } 5041 5042 private void handleIpConfigurationLost() { 5043 mWifiInfo.setInetAddress(null); 5044 mWifiInfo.setMeteredHint(false); 5045 5046 mWifiConfigStore.updateNetworkSelectionStatus(mLastNetworkId, 5047 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 5048 5049 /* DHCP times out after about 30 seconds, we do a 5050 * disconnect thru supplicant, we will let autojoin retry connecting to the network 5051 */ 5052 mWifiNative.disconnect(); 5053 } 5054 5055 // TODO: De-duplicated this and handleIpConfigurationLost(). 5056 private void handleIpReachabilityLost() { 5057 // No need to be told about any additional neighbors that might also 5058 // become unreachable--quiet them now while we start disconnecting. 5059 if (mIpReachabilityMonitor != null) { 5060 mIpReachabilityMonitor.clearLinkProperties(); 5061 } 5062 5063 mWifiInfo.setInetAddress(null); 5064 mWifiInfo.setMeteredHint(false); 5065 5066 // TODO: Determine whether to call some form of mWifiConfigStore.handleSSIDStateChange(). 5067 5068 // Disconnect via supplicant, and let autojoin retry connecting to the network. 5069 mWifiNative.disconnect(); 5070 } 5071 5072 private int convertFrequencyToChannelNumber(int frequency) { 5073 if (frequency >= 2412 && frequency <= 2484) { 5074 return (frequency -2412) / 5 + 1; 5075 } else if (frequency >= 5170 && frequency <=5825) { 5076 //DFS is included 5077 return (frequency -5170) / 5 + 34; 5078 } else { 5079 return 0; 5080 } 5081 } 5082 5083 private int chooseApChannel(int apBand) { 5084 int apChannel; 5085 int[] channel; 5086 5087 if (apBand == 0) { 5088 if (mWifiApConfigStore.allowed2GChannel == null || 5089 mWifiApConfigStore.allowed2GChannel.size() == 0) { 5090 //most safe channel to use 5091 if(DBG) { 5092 Log.d(TAG, "No specified 2G allowed channel list"); 5093 } 5094 apChannel = 6; 5095 } else { 5096 int index = mRandom.nextInt(mWifiApConfigStore.allowed2GChannel.size()); 5097 apChannel = mWifiApConfigStore.allowed2GChannel.get(index).intValue(); 5098 } 5099 } else { 5100 //5G without DFS 5101 channel = mWifiNative.getChannelsForBand(2); 5102 if (channel != null && channel.length > 0) { 5103 apChannel = channel[mRandom.nextInt(channel.length)]; 5104 apChannel = convertFrequencyToChannelNumber(apChannel); 5105 } else { 5106 Log.e(TAG, "SoftAp do not get available channel list"); 5107 apChannel = 0; 5108 } 5109 } 5110 5111 if(DBG) { 5112 Log.d(TAG, "SoftAp set on channel " + apChannel); 5113 } 5114 5115 return apChannel; 5116 } 5117 5118 /* SoftAP configuration */ 5119 private boolean enableSoftAp() { 5120 if (mWifiNative.getInterfaces() != 0) { 5121 if (!mWifiNative.toggleInterface(0)) { 5122 if (DBG) Log.e(TAG, "toggleInterface failed"); 5123 return false; 5124 } 5125 } else { 5126 if (DBG) Log.d(TAG, "No interfaces to toggle"); 5127 } 5128 5129 try { 5130 mNwService.wifiFirmwareReload(mInterfaceName, "AP"); 5131 if (DBG) Log.d(TAG, "Firmware reloaded in AP mode"); 5132 } catch (Exception e) { 5133 Log.e(TAG, "Failed to reload AP firmware " + e); 5134 } 5135 5136 if (mWifiNative.startHal() == false) { 5137 /* starting HAL is optional */ 5138 Log.e(TAG, "Failed to start HAL"); 5139 } 5140 return true; 5141 } 5142 5143 /* Current design is to not set the config on a running hostapd but instead 5144 * stop and start tethering when user changes config on a running access point 5145 * 5146 * TODO: Add control channel setup through hostapd that allows changing config 5147 * on a running daemon 5148 */ 5149 private void startSoftApWithConfig(final WifiConfiguration configuration) { 5150 // set channel 5151 final WifiConfiguration config = new WifiConfiguration(configuration); 5152 5153 if (DBG) { 5154 Log.d(TAG, "SoftAp config channel is: " + config.apChannel); 5155 } 5156 5157 //We need HAL support to set country code and get available channel list, if HAL is 5158 //not available, like razor, we regress to original implementaion (2GHz, channel 6) 5159 if (mWifiNative.isHalStarted()) { 5160 //set country code through HAL Here 5161 String countryCode = getCurrentCountryCode(); 5162 5163 if (countryCode != null) { 5164 if (!mWifiNative.setCountryCodeHal(countryCode.toUpperCase(Locale.ROOT))) { 5165 if (config.apBand != 0) { 5166 Log.e(TAG, "Fail to set country code. Can not setup Softap on 5GHz"); 5167 //countrycode is mandatory for 5GHz 5168 sendMessage(CMD_START_AP_FAILURE, WifiManager.SAP_START_FAILURE_GENERAL); 5169 return; 5170 } 5171 } 5172 } else { 5173 if (config.apBand != 0) { 5174 //countrycode is mandatory for 5GHz 5175 Log.e(TAG, "Can not setup softAp on 5GHz without country code!"); 5176 sendMessage(CMD_START_AP_FAILURE, WifiManager.SAP_START_FAILURE_GENERAL); 5177 return; 5178 } 5179 } 5180 5181 if (config.apChannel == 0) { 5182 config.apChannel = chooseApChannel(config.apBand); 5183 if (config.apChannel == 0) { 5184 if(mWifiNative.isGetChannelsForBandSupported()) { 5185 //fail to get available channel 5186 sendMessage(CMD_START_AP_FAILURE, WifiManager.SAP_START_FAILURE_NO_CHANNEL); 5187 return; 5188 } else { 5189 //for some old device, wifiHal may not be supportedget valid channels are not 5190 //supported 5191 config.apBand = 0; 5192 config.apChannel = 6; 5193 } 5194 } 5195 } 5196 } else { 5197 //for some old device, wifiHal may not be supported 5198 config.apBand = 0; 5199 config.apChannel = 6; 5200 } 5201 // Start hostapd on a separate thread 5202 new Thread(new Runnable() { 5203 public void run() { 5204 try { 5205 mNwService.startAccessPoint(config, mInterfaceName); 5206 } catch (Exception e) { 5207 loge("Exception in softap start " + e); 5208 try { 5209 mNwService.stopAccessPoint(mInterfaceName); 5210 mNwService.startAccessPoint(config, mInterfaceName); 5211 } catch (Exception e1) { 5212 loge("Exception in softap re-start " + e1); 5213 sendMessage(CMD_START_AP_FAILURE, WifiManager.SAP_START_FAILURE_GENERAL); 5214 return; 5215 } 5216 } 5217 if (DBG) log("Soft AP start successful"); 5218 sendMessage(CMD_START_AP_SUCCESS); 5219 } 5220 }).start(); 5221 } 5222 5223 private byte[] macAddressFromString(String macString) { 5224 String[] macBytes = macString.split(":"); 5225 if (macBytes.length != 6) { 5226 throw new IllegalArgumentException("MAC address should be 6 bytes long!"); 5227 } 5228 byte[] mac = new byte[6]; 5229 for (int i = 0; i < macBytes.length; i++) { 5230 Integer hexVal = Integer.parseInt(macBytes[i], 16); 5231 mac[i] = hexVal.byteValue(); 5232 } 5233 return mac; 5234 } 5235 5236 /* 5237 * Read a MAC address in /proc/arp/table, used by WifistateMachine 5238 * so as to record MAC address of default gateway. 5239 **/ 5240 private String macAddressFromRoute(String ipAddress) { 5241 String macAddress = null; 5242 BufferedReader reader = null; 5243 try { 5244 reader = new BufferedReader(new FileReader("/proc/net/arp")); 5245 5246 // Skip over the line bearing colum titles 5247 String line = reader.readLine(); 5248 5249 while ((line = reader.readLine()) != null) { 5250 String[] tokens = line.split("[ ]+"); 5251 if (tokens.length < 6) { 5252 continue; 5253 } 5254 5255 // ARP column format is 5256 // Address HWType HWAddress Flags Mask IFace 5257 String ip = tokens[0]; 5258 String mac = tokens[3]; 5259 5260 if (ipAddress.equals(ip)) { 5261 macAddress = mac; 5262 break; 5263 } 5264 } 5265 5266 if (macAddress == null) { 5267 loge("Did not find remoteAddress {" + ipAddress + "} in " + 5268 "/proc/net/arp"); 5269 } 5270 5271 } catch (FileNotFoundException e) { 5272 loge("Could not open /proc/net/arp to lookup mac address"); 5273 } catch (IOException e) { 5274 loge("Could not read /proc/net/arp to lookup mac address"); 5275 } finally { 5276 try { 5277 if (reader != null) { 5278 reader.close(); 5279 } 5280 } catch (IOException e) { 5281 // Do nothing 5282 } 5283 } 5284 return macAddress; 5285 5286 } 5287 5288 private class WifiNetworkFactory extends NetworkFactory { 5289 public WifiNetworkFactory(Looper l, Context c, String TAG, NetworkCapabilities f) { 5290 super(l, c, TAG, f); 5291 } 5292 5293 @Override 5294 protected void needNetworkFor(NetworkRequest networkRequest, int score) { 5295 ++mConnectionRequests; 5296 } 5297 5298 @Override 5299 protected void releaseNetworkFor(NetworkRequest networkRequest) { 5300 --mConnectionRequests; 5301 } 5302 5303 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 5304 pw.println("mConnectionRequests " + mConnectionRequests); 5305 } 5306 5307 } 5308 5309 private class UntrustedWifiNetworkFactory extends NetworkFactory { 5310 private int mUntrustedReqCount; 5311 5312 public UntrustedWifiNetworkFactory(Looper l, Context c, String tag, NetworkCapabilities f) { 5313 super(l, c, tag, f); 5314 } 5315 5316 @Override 5317 protected void needNetworkFor(NetworkRequest networkRequest, int score) { 5318 if (!networkRequest.networkCapabilities.hasCapability( 5319 NetworkCapabilities.NET_CAPABILITY_TRUSTED)) { 5320 if (++mUntrustedReqCount == 1) { 5321 mWifiQualifiedNetworkSelector.setAllowUntrustedConnections(true); 5322 } 5323 } 5324 } 5325 5326 @Override 5327 protected void releaseNetworkFor(NetworkRequest networkRequest) { 5328 if (!networkRequest.networkCapabilities.hasCapability( 5329 NetworkCapabilities.NET_CAPABILITY_TRUSTED)) { 5330 if (--mUntrustedReqCount == 0) { 5331 mWifiQualifiedNetworkSelector.setAllowUntrustedConnections(false); 5332 } 5333 } 5334 } 5335 5336 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 5337 pw.println("mUntrustedReqCount " + mUntrustedReqCount); 5338 } 5339 } 5340 5341 void maybeRegisterNetworkFactory() { 5342 if (mNetworkFactory == null) { 5343 checkAndSetConnectivityInstance(); 5344 if (mCm != null) { 5345 mNetworkFactory = new WifiNetworkFactory(getHandler().getLooper(), mContext, 5346 NETWORKTYPE, mNetworkCapabilitiesFilter); 5347 mNetworkFactory.setScoreFilter(60); 5348 mNetworkFactory.register(); 5349 5350 // We can't filter untrusted network in the capabilities filter because a trusted 5351 // network would still satisfy a request that accepts untrusted ones. 5352 mUntrustedNetworkFactory = new UntrustedWifiNetworkFactory(getHandler().getLooper(), 5353 mContext, NETWORKTYPE_UNTRUSTED, mNetworkCapabilitiesFilter); 5354 mUntrustedNetworkFactory.setScoreFilter(Integer.MAX_VALUE); 5355 mUntrustedNetworkFactory.register(); 5356 } 5357 } 5358 } 5359 5360 /******************************************************** 5361 * HSM states 5362 *******************************************************/ 5363 5364 class DefaultState extends State { 5365 @Override 5366 public boolean processMessage(Message message) { 5367 logStateAndMessage(message, this); 5368 5369 switch (message.what) { 5370 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 5371 AsyncChannel ac = (AsyncChannel) message.obj; 5372 if (ac == mWifiP2pChannel) { 5373 if (message.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 5374 mWifiP2pChannel.sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 5375 } else { 5376 loge("WifiP2pService connection failure, error=" + message.arg1); 5377 } 5378 } else { 5379 loge("got HALF_CONNECTED for unknown channel"); 5380 } 5381 break; 5382 } 5383 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 5384 AsyncChannel ac = (AsyncChannel) message.obj; 5385 if (ac == mWifiP2pChannel) { 5386 loge("WifiP2pService channel lost, message.arg1 =" + message.arg1); 5387 //TODO: Re-establish connection to state machine after a delay 5388 // mWifiP2pChannel.connect(mContext, getHandler(), 5389 // mWifiP2pManager.getMessenger()); 5390 } 5391 break; 5392 } 5393 case CMD_BLUETOOTH_ADAPTER_STATE_CHANGE: 5394 mBluetoothConnectionActive = (message.arg1 != 5395 BluetoothAdapter.STATE_DISCONNECTED); 5396 break; 5397 /* Synchronous call returns */ 5398 case CMD_PING_SUPPLICANT: 5399 case CMD_ENABLE_NETWORK: 5400 case CMD_ADD_OR_UPDATE_NETWORK: 5401 case CMD_REMOVE_NETWORK: 5402 case CMD_SAVE_CONFIG: 5403 replyToMessage(message, message.what, FAILURE); 5404 break; 5405 case CMD_GET_CAPABILITY_FREQ: 5406 replyToMessage(message, message.what, null); 5407 break; 5408 case CMD_GET_CONFIGURED_NETWORKS: 5409 replyToMessage(message, message.what, (List<WifiConfiguration>) null); 5410 break; 5411 case CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS: 5412 replyToMessage(message, message.what, (List<WifiConfiguration>) null); 5413 break; 5414 case CMD_ENABLE_RSSI_POLL: 5415 mEnableRssiPolling = (message.arg1 == 1); 5416 break; 5417 case CMD_SET_HIGH_PERF_MODE: 5418 if (message.arg1 == 1) { 5419 setSuspendOptimizations(SUSPEND_DUE_TO_HIGH_PERF, false); 5420 } else { 5421 setSuspendOptimizations(SUSPEND_DUE_TO_HIGH_PERF, true); 5422 } 5423 break; 5424 case CMD_BOOT_COMPLETED: 5425 maybeRegisterNetworkFactory(); 5426 break; 5427 case CMD_SCREEN_STATE_CHANGED: 5428 handleScreenStateChanged(message.arg1 != 0); 5429 break; 5430 /* Discard */ 5431 case CMD_START_SCAN: 5432 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 5433 break; 5434 case CMD_START_SUPPLICANT: 5435 case CMD_STOP_SUPPLICANT: 5436 case CMD_STOP_SUPPLICANT_FAILED: 5437 case CMD_START_DRIVER: 5438 case CMD_STOP_DRIVER: 5439 case CMD_DRIVER_START_TIMED_OUT: 5440 case CMD_START_AP: 5441 case CMD_START_AP_SUCCESS: 5442 case CMD_START_AP_FAILURE: 5443 case CMD_STOP_AP: 5444 case CMD_TETHER_STATE_CHANGE: 5445 case CMD_TETHER_NOTIFICATION_TIMED_OUT: 5446 case CMD_DISCONNECT: 5447 case CMD_RECONNECT: 5448 case CMD_REASSOCIATE: 5449 case CMD_RELOAD_TLS_AND_RECONNECT: 5450 case WifiMonitor.SUP_CONNECTION_EVENT: 5451 case WifiMonitor.SUP_DISCONNECTION_EVENT: 5452 case WifiMonitor.NETWORK_CONNECTION_EVENT: 5453 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 5454 case WifiMonitor.SCAN_RESULTS_EVENT: 5455 case WifiMonitor.SCAN_FAILED_EVENT: 5456 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 5457 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 5458 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 5459 case WifiMonitor.WPS_OVERLAP_EVENT: 5460 case CMD_BLACKLIST_NETWORK: 5461 case CMD_CLEAR_BLACKLIST: 5462 case CMD_SET_OPERATIONAL_MODE: 5463 case CMD_SET_FREQUENCY_BAND: 5464 case CMD_RSSI_POLL: 5465 case CMD_ENABLE_ALL_NETWORKS: 5466 case DhcpStateMachine.CMD_PRE_DHCP_ACTION: 5467 case DhcpStateMachine.CMD_POST_DHCP_ACTION: 5468 /* Handled by WifiApConfigStore */ 5469 case CMD_SET_AP_CONFIG: 5470 case CMD_SET_AP_CONFIG_COMPLETED: 5471 case CMD_REQUEST_AP_CONFIG: 5472 case CMD_RESPONSE_AP_CONFIG: 5473 case CMD_NO_NETWORKS_PERIODIC_SCAN: 5474 case CMD_DISABLE_P2P_RSP: 5475 case WifiMonitor.SUP_REQUEST_IDENTITY: 5476 case CMD_TEST_NETWORK_DISCONNECT: 5477 case CMD_OBTAINING_IP_ADDRESS_WATCHDOG_TIMER: 5478 case WifiMonitor.SUP_REQUEST_SIM_AUTH: 5479 case CMD_TARGET_BSSID: 5480 case CMD_AUTO_CONNECT: 5481 case CMD_AUTO_ROAM: 5482 case CMD_AUTO_SAVE_NETWORK: 5483 case CMD_ASSOCIATED_BSSID: 5484 case CMD_UNWANTED_NETWORK: 5485 case CMD_DISCONNECTING_WATCHDOG_TIMER: 5486 case CMD_ROAM_WATCHDOG_TIMER: 5487 case CMD_DISABLE_EPHEMERAL_NETWORK: 5488 case CMD_RESTART_AUTOJOIN_OFFLOAD: 5489 case CMD_STARTED_PNO_DBG: 5490 case CMD_STARTED_GSCAN_DBG: 5491 case CMD_UPDATE_ASSOCIATED_SCAN_PERMISSION: 5492 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 5493 break; 5494 case CMD_SET_COUNTRY_CODE: 5495 String country = (String) message.obj; 5496 final boolean persist = (message.arg2 == 1); 5497 final int sequence = message.arg1; 5498 if (sequence != mCountryCodeSequence.get()) { 5499 if (DBG) log("set country code ignored due to sequnce num"); 5500 break; 5501 } 5502 5503 if (persist) { 5504 country = country.toUpperCase(Locale.ROOT); 5505 if (DBG) log("set country code " + (country == null ? "(null)" : country)); 5506 Settings.Global.putString(mContext.getContentResolver(), 5507 Settings.Global.WIFI_COUNTRY_CODE, 5508 country == null ? "" : country); 5509 } 5510 5511 break; 5512 case DhcpStateMachine.CMD_ON_QUIT: 5513 mDhcpStateMachine = null; 5514 break; 5515 case CMD_SET_SUSPEND_OPT_ENABLED: 5516 if (message.arg1 == 1) { 5517 mSuspendWakeLock.release(); 5518 setSuspendOptimizations(SUSPEND_DUE_TO_SCREEN, true); 5519 } else { 5520 setSuspendOptimizations(SUSPEND_DUE_TO_SCREEN, false); 5521 } 5522 break; 5523 case WifiMonitor.DRIVER_HUNG_EVENT: 5524 setSupplicantRunning(false); 5525 setSupplicantRunning(true); 5526 break; 5527 case WifiManager.CONNECT_NETWORK: 5528 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 5529 WifiManager.BUSY); 5530 break; 5531 case WifiManager.FORGET_NETWORK: 5532 replyToMessage(message, WifiManager.FORGET_NETWORK_FAILED, 5533 WifiManager.BUSY); 5534 break; 5535 case WifiManager.SAVE_NETWORK: 5536 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5537 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5538 WifiManager.BUSY); 5539 break; 5540 case WifiManager.START_WPS: 5541 replyToMessage(message, WifiManager.WPS_FAILED, 5542 WifiManager.BUSY); 5543 break; 5544 case WifiManager.CANCEL_WPS: 5545 replyToMessage(message, WifiManager.CANCEL_WPS_FAILED, 5546 WifiManager.BUSY); 5547 break; 5548 case WifiManager.DISABLE_NETWORK: 5549 replyToMessage(message, WifiManager.DISABLE_NETWORK_FAILED, 5550 WifiManager.BUSY); 5551 break; 5552 case WifiManager.RSSI_PKTCNT_FETCH: 5553 replyToMessage(message, WifiManager.RSSI_PKTCNT_FETCH_FAILED, 5554 WifiManager.BUSY); 5555 break; 5556 case CMD_GET_SUPPORTED_FEATURES: 5557 int featureSet = mWifiNative.getSupportedFeatureSet(); 5558 replyToMessage(message, message.what, featureSet); 5559 break; 5560 case CMD_FIRMWARE_ALERT: 5561 if (mWifiLogger != null) { 5562 byte[] buffer = (byte[])message.obj; 5563 mWifiLogger.captureAlertData(message.arg1, buffer); 5564 } 5565 break; 5566 case CMD_GET_LINK_LAYER_STATS: 5567 // Not supported hence reply with error message 5568 replyToMessage(message, message.what, null); 5569 break; 5570 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 5571 NetworkInfo info = (NetworkInfo) message.obj; 5572 mP2pConnected.set(info.isConnected()); 5573 break; 5574 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 5575 mTemporarilyDisconnectWifi = (message.arg1 == 1); 5576 replyToMessage(message, WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE); 5577 break; 5578 /* Link configuration (IP address, DNS, ...) changes notified via netlink */ 5579 case CMD_UPDATE_LINKPROPERTIES: 5580 updateLinkProperties(CMD_UPDATE_LINKPROPERTIES); 5581 break; 5582 case CMD_GET_MATCHING_CONFIG: 5583 replyToMessage(message, message.what); 5584 break; 5585 case CMD_IP_CONFIGURATION_SUCCESSFUL: 5586 case CMD_IP_CONFIGURATION_LOST: 5587 case CMD_IP_REACHABILITY_LOST: 5588 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 5589 break; 5590 case CMD_GET_CONNECTION_STATISTICS: 5591 replyToMessage(message, message.what, mWifiConnectionStatistics); 5592 break; 5593 case CMD_REMOVE_APP_CONFIGURATIONS: 5594 deferMessage(message); 5595 break; 5596 case CMD_REMOVE_USER_CONFIGURATIONS: 5597 deferMessage(message); 5598 break; 5599 case CMD_START_IP_PACKET_OFFLOAD: 5600 if (mNetworkAgent != null) mNetworkAgent.onPacketKeepaliveEvent( 5601 message.arg1, 5602 ConnectivityManager.PacketKeepalive.ERROR_INVALID_NETWORK); 5603 break; 5604 case CMD_STOP_IP_PACKET_OFFLOAD: 5605 if (mNetworkAgent != null) mNetworkAgent.onPacketKeepaliveEvent( 5606 message.arg1, 5607 ConnectivityManager.PacketKeepalive.ERROR_INVALID_NETWORK); 5608 break; 5609 case CMD_START_RSSI_MONITORING_OFFLOAD: 5610 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 5611 break; 5612 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 5613 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 5614 break; 5615 default: 5616 loge("Error! unhandled message" + message); 5617 break; 5618 } 5619 return HANDLED; 5620 } 5621 } 5622 5623 class InitialState extends State { 5624 @Override 5625 public void enter() { 5626 mWifiNative.stopHal(); 5627 mWifiNative.unloadDriver(); 5628 if (mWifiP2pChannel == null) { 5629 mWifiP2pChannel = new AsyncChannel(); 5630 mWifiP2pChannel.connect(mContext, getHandler(), 5631 mWifiP2pServiceImpl.getP2pStateMachineMessenger()); 5632 } 5633 5634 if (mWifiApConfigChannel == null) { 5635 mWifiApConfigChannel = new AsyncChannel(); 5636 mWifiApConfigStore = mFacade.makeApConfigStore(mContext, getHandler()); 5637 mWifiApConfigStore.loadApConfiguration(); 5638 mWifiApConfigChannel.connectSync(mContext, getHandler(), 5639 mWifiApConfigStore.getMessenger()); 5640 } 5641 5642 if (mWifiConfigStore.enableHalBasedPno.get()) { 5643 // make sure developer Settings are in sync with the config option 5644 mHalBasedPnoEnableInDevSettings = true; 5645 } 5646 } 5647 @Override 5648 public boolean processMessage(Message message) { 5649 logStateAndMessage(message, this); 5650 switch (message.what) { 5651 case CMD_START_SUPPLICANT: 5652 if (mWifiNative.loadDriver()) { 5653 try { 5654 mNwService.wifiFirmwareReload(mInterfaceName, "STA"); 5655 } catch (Exception e) { 5656 loge("Failed to reload STA firmware " + e); 5657 // Continue 5658 } 5659 5660 try { 5661 // A runtime crash can leave the interface up and 5662 // IP addresses configured, and this affects 5663 // connectivity when supplicant starts up. 5664 // Ensure interface is down and we have no IP 5665 // addresses before a supplicant start. 5666 mNwService.setInterfaceDown(mInterfaceName); 5667 mNwService.clearInterfaceAddresses(mInterfaceName); 5668 5669 // Set privacy extensions 5670 mNwService.setInterfaceIpv6PrivacyExtensions(mInterfaceName, true); 5671 5672 // IPv6 is enabled only as long as access point is connected since: 5673 // - IPv6 addresses and routes stick around after disconnection 5674 // - kernel is unaware when connected and fails to start IPv6 negotiation 5675 // - kernel can start autoconfiguration when 802.1x is not complete 5676 mNwService.disableIpv6(mInterfaceName); 5677 } catch (RemoteException re) { 5678 loge("Unable to change interface settings: " + re); 5679 } catch (IllegalStateException ie) { 5680 loge("Unable to change interface settings: " + ie); 5681 } 5682 5683 /* Stop a running supplicant after a runtime restart 5684 * Avoids issues with drivers that do not handle interface down 5685 * on a running supplicant properly. 5686 */ 5687 mWifiMonitor.killSupplicant(mP2pSupported); 5688 5689 if (mWifiNative.startHal() == false) { 5690 /* starting HAL is optional */ 5691 loge("Failed to start HAL"); 5692 } 5693 5694 if (mWifiNative.startSupplicant(mP2pSupported)) { 5695 setWifiState(WIFI_STATE_ENABLING); 5696 if (DBG) log("Supplicant start successful"); 5697 mWifiMonitor.startMonitoring(mInterfaceName); 5698 transitionTo(mSupplicantStartingState); 5699 } else { 5700 loge("Failed to start supplicant!"); 5701 } 5702 } else { 5703 loge("Failed to load driver"); 5704 } 5705 break; 5706 case CMD_START_AP: 5707 if (mWifiNative.loadDriver() == false) { 5708 loge("Failed to load driver for softap"); 5709 } else { 5710 if (enableSoftAp() == true) { 5711 setWifiApState(WIFI_AP_STATE_ENABLING, 0); 5712 transitionTo(mSoftApStartingState); 5713 } else { 5714 setWifiApState(WIFI_AP_STATE_FAILED, 5715 WifiManager.SAP_START_FAILURE_GENERAL); 5716 transitionTo(mInitialState); 5717 } 5718 } 5719 break; 5720 default: 5721 return NOT_HANDLED; 5722 } 5723 return HANDLED; 5724 } 5725 } 5726 5727 class SupplicantStartingState extends State { 5728 private void initializeWpsDetails() { 5729 String detail; 5730 detail = SystemProperties.get("ro.product.name", ""); 5731 if (!mWifiNative.setDeviceName(detail)) { 5732 loge("Failed to set device name " + detail); 5733 } 5734 detail = SystemProperties.get("ro.product.manufacturer", ""); 5735 if (!mWifiNative.setManufacturer(detail)) { 5736 loge("Failed to set manufacturer " + detail); 5737 } 5738 detail = SystemProperties.get("ro.product.model", ""); 5739 if (!mWifiNative.setModelName(detail)) { 5740 loge("Failed to set model name " + detail); 5741 } 5742 detail = SystemProperties.get("ro.product.model", ""); 5743 if (!mWifiNative.setModelNumber(detail)) { 5744 loge("Failed to set model number " + detail); 5745 } 5746 detail = SystemProperties.get("ro.serialno", ""); 5747 if (!mWifiNative.setSerialNumber(detail)) { 5748 loge("Failed to set serial number " + detail); 5749 } 5750 if (!mWifiNative.setConfigMethods("physical_display virtual_push_button")) { 5751 loge("Failed to set WPS config methods"); 5752 } 5753 if (!mWifiNative.setDeviceType(mPrimaryDeviceType)) { 5754 loge("Failed to set primary device type " + mPrimaryDeviceType); 5755 } 5756 } 5757 5758 @Override 5759 public boolean processMessage(Message message) { 5760 logStateAndMessage(message, this); 5761 5762 switch(message.what) { 5763 case WifiMonitor.SUP_CONNECTION_EVENT: 5764 if (DBG) log("Supplicant connection established"); 5765 setWifiState(WIFI_STATE_ENABLED); 5766 mSupplicantRestartCount = 0; 5767 /* Reset the supplicant state to indicate the supplicant 5768 * state is not known at this time */ 5769 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 5770 /* Initialize data structures */ 5771 mLastBssid = null; 5772 mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 5773 mLastSignalLevel = -1; 5774 5775 mWifiInfo.setMacAddress(mWifiNative.getMacAddress()); 5776 /* set frequency band of operation */ 5777 setFrequencyBand(); 5778 mWifiNative.enableSaveConfig(); 5779 mWifiConfigStore.loadAndEnableAllNetworks(); 5780 if (mWifiConfigStore.enableVerboseLogging.get() > 0) { 5781 enableVerboseLogging(mWifiConfigStore.enableVerboseLogging.get()); 5782 } 5783 initializeWpsDetails(); 5784 5785 sendSupplicantConnectionChangedBroadcast(true); 5786 transitionTo(mDriverStartedState); 5787 break; 5788 case WifiMonitor.SUP_DISCONNECTION_EVENT: 5789 if (++mSupplicantRestartCount <= SUPPLICANT_RESTART_TRIES) { 5790 loge("Failed to setup control channel, restart supplicant"); 5791 mWifiMonitor.killSupplicant(mP2pSupported); 5792 transitionTo(mInitialState); 5793 sendMessageDelayed(CMD_START_SUPPLICANT, SUPPLICANT_RESTART_INTERVAL_MSECS); 5794 } else { 5795 loge("Failed " + mSupplicantRestartCount + 5796 " times to start supplicant, unload driver"); 5797 mSupplicantRestartCount = 0; 5798 setWifiState(WIFI_STATE_UNKNOWN); 5799 transitionTo(mInitialState); 5800 } 5801 break; 5802 case CMD_START_SUPPLICANT: 5803 case CMD_STOP_SUPPLICANT: 5804 case CMD_START_AP: 5805 case CMD_STOP_AP: 5806 case CMD_START_DRIVER: 5807 case CMD_STOP_DRIVER: 5808 case CMD_SET_OPERATIONAL_MODE: 5809 case CMD_SET_COUNTRY_CODE: 5810 case CMD_SET_FREQUENCY_BAND: 5811 case CMD_START_PACKET_FILTERING: 5812 case CMD_STOP_PACKET_FILTERING: 5813 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5814 deferMessage(message); 5815 break; 5816 default: 5817 return NOT_HANDLED; 5818 } 5819 return HANDLED; 5820 } 5821 } 5822 5823 class SupplicantStartedState extends State { 5824 @Override 5825 public void enter() { 5826 /* Wifi is available as long as we have a connection to supplicant */ 5827 mNetworkInfo.setIsAvailable(true); 5828 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 5829 5830 int defaultInterval = mContext.getResources().getInteger( 5831 R.integer.config_wifi_supplicant_scan_interval); 5832 5833 mSupplicantScanIntervalMs = mFacade.getLongSetting(mContext, 5834 Settings.Global.WIFI_SUPPLICANT_SCAN_INTERVAL_MS, 5835 defaultInterval); 5836 5837 mWifiNative.setScanInterval((int)mSupplicantScanIntervalMs / 1000); 5838 mWifiNative.setExternalSim(true); 5839 5840 /* turn on use of DFS channels */ 5841 mWifiNative.setDfsFlag(true); 5842 5843 /* set country code */ 5844 initializeCountryCode(); 5845 5846 setRandomMacOui(); 5847 mWifiNative.enableAutoConnect(false); 5848 } 5849 5850 @Override 5851 public boolean processMessage(Message message) { 5852 logStateAndMessage(message, this); 5853 5854 switch(message.what) { 5855 case CMD_STOP_SUPPLICANT: /* Supplicant stopped by user */ 5856 if (mP2pSupported) { 5857 transitionTo(mWaitForP2pDisableState); 5858 } else { 5859 transitionTo(mSupplicantStoppingState); 5860 } 5861 break; 5862 case WifiMonitor.SUP_DISCONNECTION_EVENT: /* Supplicant connection lost */ 5863 loge("Connection lost, restart supplicant"); 5864 handleSupplicantConnectionLoss(true); 5865 handleNetworkDisconnect(); 5866 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 5867 if (mP2pSupported) { 5868 transitionTo(mWaitForP2pDisableState); 5869 } else { 5870 transitionTo(mInitialState); 5871 } 5872 sendMessageDelayed(CMD_START_SUPPLICANT, SUPPLICANT_RESTART_INTERVAL_MSECS); 5873 break; 5874 case WifiMonitor.SCAN_RESULTS_EVENT: 5875 case WifiMonitor.SCAN_FAILED_EVENT: 5876 maybeRegisterNetworkFactory(); // Make sure our NetworkFactory is registered 5877 noteScanEnd(); 5878 setScanResults(); 5879 if (mIsFullScanOngoing || mSendScanResultsBroadcast) { 5880 /* Just updated results from full scan, let apps know about this */ 5881 boolean scanSucceeded = message.what == WifiMonitor.SCAN_RESULTS_EVENT; 5882 sendScanResultsAvailableBroadcast(scanSucceeded); 5883 } 5884 mSendScanResultsBroadcast = false; 5885 mIsScanOngoing = false; 5886 mIsFullScanOngoing = false; 5887 if (mBufferedScanMsg.size() > 0) 5888 sendMessage(mBufferedScanMsg.remove()); 5889 break; 5890 case CMD_PING_SUPPLICANT: 5891 boolean ok = mWifiNative.ping(); 5892 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 5893 break; 5894 case CMD_GET_CAPABILITY_FREQ: 5895 String freqs = mWifiNative.getFreqCapability(); 5896 replyToMessage(message, message.what, freqs); 5897 break; 5898 case CMD_START_AP: 5899 /* Cannot start soft AP while in client mode */ 5900 loge("Failed to start soft AP with a running supplicant"); 5901 setWifiApState(WIFI_AP_STATE_FAILED, WifiManager.SAP_START_FAILURE_GENERAL); 5902 break; 5903 case CMD_SET_OPERATIONAL_MODE: 5904 mOperationalMode = message.arg1; 5905 mWifiConfigStore. 5906 setAndEnableLastSelectedConfiguration( 5907 WifiConfiguration.INVALID_NETWORK_ID); 5908 break; 5909 case CMD_TARGET_BSSID: 5910 // Trying to associate to this BSSID 5911 if (message.obj != null) { 5912 mTargetRoamBSSID = (String) message.obj; 5913 } 5914 break; 5915 case CMD_GET_LINK_LAYER_STATS: 5916 WifiLinkLayerStats stats = getWifiLinkLayerStats(DBG); 5917 if (stats == null) { 5918 // When firmware doesnt support link layer stats, return an empty object 5919 stats = new WifiLinkLayerStats(); 5920 } 5921 replyToMessage(message, message.what, stats); 5922 break; 5923 case CMD_SET_COUNTRY_CODE: 5924 String country = (String) message.obj; 5925 final boolean persist = (message.arg2 == 1); 5926 final int sequence = message.arg1; 5927 if (sequence != mCountryCodeSequence.get()) { 5928 if (DBG) log("set country code ignored due to sequnce num"); 5929 break; 5930 } 5931 5932 country = country.toUpperCase(Locale.ROOT); 5933 5934 if (DBG) log("set country code " + (country == null ? "(null)" : country)); 5935 5936 if (!TextUtils.equals(mDriverSetCountryCode, country)) { 5937 if (mWifiNative.setCountryCode(country)) { 5938 mDriverSetCountryCode = country; 5939 } else { 5940 loge("Failed to set country code " + country); 5941 } 5942 } 5943 5944 if (persist) { 5945 Settings.Global.putString(mContext.getContentResolver(), 5946 Settings.Global.WIFI_COUNTRY_CODE, 5947 country == null ? "" : country); 5948 } 5949 5950 mWifiP2pChannel.sendMessage(WifiP2pServiceImpl.SET_COUNTRY_CODE, country); 5951 break; 5952 case CMD_RESET_SIM_NETWORKS: 5953 log("resetting EAP-SIM/AKA/AKA' networks since SIM was removed"); 5954 mWifiConfigStore.resetSimNetworks(); 5955 break; 5956 default: 5957 return NOT_HANDLED; 5958 } 5959 return HANDLED; 5960 } 5961 5962 @Override 5963 public void exit() { 5964 mNetworkInfo.setIsAvailable(false); 5965 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 5966 } 5967 } 5968 5969 class SupplicantStoppingState extends State { 5970 @Override 5971 public void enter() { 5972 /* Send any reset commands to supplicant before shutting it down */ 5973 handleNetworkDisconnect(); 5974 if (mDhcpStateMachine != null) { 5975 mDhcpStateMachine.doQuit(); 5976 } 5977 5978 String suppState = System.getProperty("init.svc.wpa_supplicant"); 5979 if (suppState == null) suppState = "unknown"; 5980 String p2pSuppState = System.getProperty("init.svc.p2p_supplicant"); 5981 if (p2pSuppState == null) p2pSuppState = "unknown"; 5982 5983 logd("SupplicantStoppingState: stopSupplicant " 5984 + " init.svc.wpa_supplicant=" + suppState 5985 + " init.svc.p2p_supplicant=" + p2pSuppState); 5986 mWifiMonitor.stopSupplicant(); 5987 5988 /* Send ourselves a delayed message to indicate failure after a wait time */ 5989 sendMessageDelayed(obtainMessage(CMD_STOP_SUPPLICANT_FAILED, 5990 ++mSupplicantStopFailureToken, 0), SUPPLICANT_RESTART_INTERVAL_MSECS); 5991 setWifiState(WIFI_STATE_DISABLING); 5992 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 5993 } 5994 @Override 5995 public boolean processMessage(Message message) { 5996 logStateAndMessage(message, this); 5997 5998 switch(message.what) { 5999 case WifiMonitor.SUP_CONNECTION_EVENT: 6000 loge("Supplicant connection received while stopping"); 6001 break; 6002 case WifiMonitor.SUP_DISCONNECTION_EVENT: 6003 if (DBG) log("Supplicant connection lost"); 6004 handleSupplicantConnectionLoss(false); 6005 transitionTo(mInitialState); 6006 break; 6007 case CMD_STOP_SUPPLICANT_FAILED: 6008 if (message.arg1 == mSupplicantStopFailureToken) { 6009 loge("Timed out on a supplicant stop, kill and proceed"); 6010 handleSupplicantConnectionLoss(true); 6011 transitionTo(mInitialState); 6012 } 6013 break; 6014 case CMD_START_SUPPLICANT: 6015 case CMD_STOP_SUPPLICANT: 6016 case CMD_START_AP: 6017 case CMD_STOP_AP: 6018 case CMD_START_DRIVER: 6019 case CMD_STOP_DRIVER: 6020 case CMD_SET_OPERATIONAL_MODE: 6021 case CMD_SET_COUNTRY_CODE: 6022 case CMD_SET_FREQUENCY_BAND: 6023 case CMD_START_PACKET_FILTERING: 6024 case CMD_STOP_PACKET_FILTERING: 6025 deferMessage(message); 6026 break; 6027 default: 6028 return NOT_HANDLED; 6029 } 6030 return HANDLED; 6031 } 6032 } 6033 6034 class DriverStartingState extends State { 6035 private int mTries; 6036 @Override 6037 public void enter() { 6038 mTries = 1; 6039 /* Send ourselves a delayed message to start driver a second time */ 6040 sendMessageDelayed(obtainMessage(CMD_DRIVER_START_TIMED_OUT, 6041 ++mDriverStartToken, 0), DRIVER_START_TIME_OUT_MSECS); 6042 } 6043 @Override 6044 public boolean processMessage(Message message) { 6045 logStateAndMessage(message, this); 6046 6047 switch(message.what) { 6048 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6049 SupplicantState state = handleSupplicantStateChange(message); 6050 /* If suplicant is exiting out of INTERFACE_DISABLED state into 6051 * a state that indicates driver has started, it is ready to 6052 * receive driver commands 6053 */ 6054 if (SupplicantState.isDriverActive(state)) { 6055 transitionTo(mDriverStartedState); 6056 } 6057 break; 6058 case CMD_DRIVER_START_TIMED_OUT: 6059 if (message.arg1 == mDriverStartToken) { 6060 if (mTries >= 2) { 6061 loge("Failed to start driver after " + mTries); 6062 transitionTo(mDriverStoppedState); 6063 } else { 6064 loge("Driver start failed, retrying"); 6065 mWakeLock.acquire(); 6066 mWifiNative.startDriver(); 6067 mWakeLock.release(); 6068 6069 ++mTries; 6070 /* Send ourselves a delayed message to start driver again */ 6071 sendMessageDelayed(obtainMessage(CMD_DRIVER_START_TIMED_OUT, 6072 ++mDriverStartToken, 0), DRIVER_START_TIME_OUT_MSECS); 6073 } 6074 } 6075 break; 6076 /* Queue driver commands & connection events */ 6077 case CMD_START_DRIVER: 6078 case CMD_STOP_DRIVER: 6079 case WifiMonitor.NETWORK_CONNECTION_EVENT: 6080 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6081 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 6082 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 6083 case WifiMonitor.WPS_OVERLAP_EVENT: 6084 case CMD_SET_COUNTRY_CODE: 6085 case CMD_SET_FREQUENCY_BAND: 6086 case CMD_START_PACKET_FILTERING: 6087 case CMD_STOP_PACKET_FILTERING: 6088 case CMD_START_SCAN: 6089 case CMD_DISCONNECT: 6090 case CMD_REASSOCIATE: 6091 case CMD_RECONNECT: 6092 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 6093 deferMessage(message); 6094 break; 6095 case WifiMonitor.SCAN_RESULTS_EVENT: 6096 case WifiMonitor.SCAN_FAILED_EVENT: 6097 // Loose scan results obtained in Driver Starting state, they can only confuse 6098 // the state machine 6099 break; 6100 default: 6101 return NOT_HANDLED; 6102 } 6103 return HANDLED; 6104 } 6105 } 6106 6107 class DriverStartedState extends State { 6108 @Override 6109 public void enter() { 6110 6111 if (PDBG) { 6112 logd("DriverStartedState enter"); 6113 } 6114 6115 mWifiLogger.startLogging(mVerboseLoggingLevel > 0); 6116 mIsRunning = true; 6117 updateBatteryWorkSource(null); 6118 /** 6119 * Enable bluetooth coexistence scan mode when bluetooth connection is active. 6120 * When this mode is on, some of the low-level scan parameters used by the 6121 * driver are changed to reduce interference with bluetooth 6122 */ 6123 mWifiNative.setBluetoothCoexistenceScanMode(mBluetoothConnectionActive); 6124 /* initialize network state */ 6125 setNetworkDetailedState(DetailedState.DISCONNECTED); 6126 6127 /* Remove any filtering on Multicast v6 at start */ 6128 mWifiNative.stopFilteringMulticastV6Packets(); 6129 6130 /* Reset Multicast v4 filtering state */ 6131 if (mFilteringMulticastV4Packets.get()) { 6132 mWifiNative.startFilteringMulticastV4Packets(); 6133 } else { 6134 mWifiNative.stopFilteringMulticastV4Packets(); 6135 } 6136 6137 mDhcpActive = false; 6138 6139 if (mOperationalMode != CONNECT_MODE) { 6140 mWifiNative.disconnect(); 6141 mWifiConfigStore.disableAllNetworks(); 6142 if (mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 6143 setWifiState(WIFI_STATE_DISABLED); 6144 } 6145 transitionTo(mScanModeState); 6146 } else { 6147 6148 // Status pulls in the current supplicant state and network connection state 6149 // events over the monitor connection. This helps framework sync up with 6150 // current supplicant state 6151 // TODO: actually check th supplicant status string and make sure the supplicant 6152 // is in disconnecte4d state. 6153 mWifiNative.status(); 6154 // Transitioning to Disconnected state will trigger a scan and subsequently AutoJoin 6155 transitionTo(mDisconnectedState); 6156 transitionTo(mDisconnectedState); 6157 } 6158 6159 // We may have missed screen update at boot 6160 if (mScreenBroadcastReceived.get() == false) { 6161 PowerManager powerManager = (PowerManager)mContext.getSystemService( 6162 Context.POWER_SERVICE); 6163 handleScreenStateChanged(powerManager.isScreenOn()); 6164 } else { 6165 // Set the right suspend mode settings 6166 mWifiNative.setSuspendOptimizations(mSuspendOptNeedsDisabled == 0 6167 && mUserWantsSuspendOpt.get()); 6168 } 6169 mWifiNative.setPowerSave(true); 6170 6171 if (mP2pSupported) { 6172 if (mOperationalMode == CONNECT_MODE) { 6173 mWifiP2pChannel.sendMessage(WifiStateMachine.CMD_ENABLE_P2P); 6174 } else { 6175 // P2P statemachine starts in disabled state, and is not enabled until 6176 // CMD_ENABLE_P2P is sent from here; so, nothing needs to be done to 6177 // keep it disabled. 6178 } 6179 } 6180 6181 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 6182 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 6183 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_ENABLED); 6184 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 6185 6186 mHalFeatureSet = mWifiNative.getSupportedFeatureSet(); 6187 if ((mHalFeatureSet & WifiManager.WIFI_FEATURE_HAL_EPNO) 6188 == WifiManager.WIFI_FEATURE_HAL_EPNO) { 6189 mHalBasedPnoDriverSupported = true; 6190 } 6191 6192 // Enable link layer stats gathering 6193 mWifiNative.setWifiLinkLayerStats("wlan0", 1); 6194 6195 if (PDBG) { 6196 logd("Driverstarted State enter done, epno=" + mHalBasedPnoDriverSupported 6197 + " feature=" + mHalFeatureSet); 6198 } 6199 } 6200 6201 @Override 6202 public boolean processMessage(Message message) { 6203 logStateAndMessage(message, this); 6204 6205 switch(message.what) { 6206 case CMD_START_SCAN: 6207 handleScanRequest(WifiNative.SCAN_WITHOUT_CONNECTION_SETUP, message); 6208 break; 6209 case CMD_SET_FREQUENCY_BAND: 6210 int band = message.arg1; 6211 if (DBG) log("set frequency band " + band); 6212 if (mWifiNative.setBand(band)) { 6213 6214 if (PDBG) logd("did set frequency band " + band); 6215 6216 mFrequencyBand.set(band); 6217 // Flush old data - like scan results 6218 mWifiNative.bssFlush(); 6219 // Fetch the latest scan results when frequency band is set 6220// startScanNative(WifiNative.SCAN_WITHOUT_CONNECTION_SETUP, null); 6221 6222 if (PDBG) logd("done set frequency band " + band); 6223 6224 } else { 6225 loge("Failed to set frequency band " + band); 6226 } 6227 break; 6228 case CMD_BLUETOOTH_ADAPTER_STATE_CHANGE: 6229 mBluetoothConnectionActive = (message.arg1 != 6230 BluetoothAdapter.STATE_DISCONNECTED); 6231 mWifiNative.setBluetoothCoexistenceScanMode(mBluetoothConnectionActive); 6232 break; 6233 case CMD_STOP_DRIVER: 6234 int mode = message.arg1; 6235 6236 log("stop driver"); 6237 mWifiConfigStore.disableAllNetworks(); 6238 6239 if (getCurrentState() != mDisconnectedState) { 6240 mWifiNative.disconnect(); 6241 handleNetworkDisconnect(); 6242 } 6243 mWakeLock.acquire(); 6244 mWifiNative.stopDriver(); 6245 mWakeLock.release(); 6246 if (mP2pSupported) { 6247 transitionTo(mWaitForP2pDisableState); 6248 } else { 6249 transitionTo(mDriverStoppingState); 6250 } 6251 break; 6252 case CMD_START_DRIVER: 6253 if (mOperationalMode == CONNECT_MODE) { 6254 mWifiConfigStore.enableAllNetworks(); 6255 } 6256 break; 6257 case CMD_START_PACKET_FILTERING: 6258 if (message.arg1 == MULTICAST_V6) { 6259 mWifiNative.startFilteringMulticastV6Packets(); 6260 } else if (message.arg1 == MULTICAST_V4) { 6261 mWifiNative.startFilteringMulticastV4Packets(); 6262 } else { 6263 loge("Illegal arugments to CMD_START_PACKET_FILTERING"); 6264 } 6265 break; 6266 case CMD_STOP_PACKET_FILTERING: 6267 if (message.arg1 == MULTICAST_V6) { 6268 mWifiNative.stopFilteringMulticastV6Packets(); 6269 } else if (message.arg1 == MULTICAST_V4) { 6270 mWifiNative.stopFilteringMulticastV4Packets(); 6271 } else { 6272 loge("Illegal arugments to CMD_STOP_PACKET_FILTERING"); 6273 } 6274 break; 6275 case CMD_SET_SUSPEND_OPT_ENABLED: 6276 if (message.arg1 == 1) { 6277 setSuspendOptimizationsNative(SUSPEND_DUE_TO_SCREEN, true); 6278 mSuspendWakeLock.release(); 6279 } else { 6280 setSuspendOptimizationsNative(SUSPEND_DUE_TO_SCREEN, false); 6281 } 6282 break; 6283 case CMD_SET_HIGH_PERF_MODE: 6284 if (message.arg1 == 1) { 6285 setSuspendOptimizationsNative(SUSPEND_DUE_TO_HIGH_PERF, false); 6286 } else { 6287 setSuspendOptimizationsNative(SUSPEND_DUE_TO_HIGH_PERF, true); 6288 } 6289 break; 6290 case CMD_ENABLE_TDLS: 6291 if (message.obj != null) { 6292 String remoteAddress = (String) message.obj; 6293 boolean enable = (message.arg1 == 1); 6294 mWifiNative.startTdls(remoteAddress, enable); 6295 } 6296 break; 6297 case WifiMonitor.ANQP_DONE_EVENT: 6298 mWifiConfigStore.notifyANQPDone((Long) message.obj, message.arg1 != 0); 6299 break; 6300 case CMD_STOP_IP_PACKET_OFFLOAD: { 6301 int slot = message.arg1; 6302 int ret = stopWifiIPPacketOffload(slot); 6303 if (mNetworkAgent != null) { 6304 mNetworkAgent.onPacketKeepaliveEvent(slot, ret); 6305 } 6306 break; 6307 } 6308 case WifiMonitor.RX_HS20_ANQP_ICON_EVENT: 6309 mWifiConfigStore.notifyIconReceived((IconEvent)message.obj); 6310 break; 6311 case WifiMonitor.HS20_REMEDIATION_EVENT: 6312 mWifiConfigStore.wnmFrameReceived((String)message.obj); 6313 break; 6314 case WifiMonitor.HS20_DEAUTH_EVENT: 6315 mWifiConfigStore.wnmFrameReceived((String)message.obj); 6316 break; 6317 default: 6318 return NOT_HANDLED; 6319 } 6320 return HANDLED; 6321 } 6322 @Override 6323 public void exit() { 6324 6325 mWifiLogger.stopLogging(); 6326 6327 mIsRunning = false; 6328 updateBatteryWorkSource(null); 6329 mScanResults = new ArrayList<>(); 6330 6331 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 6332 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 6333 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_DISABLED); 6334 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 6335 noteScanEnd(); // wrap up any pending request. 6336 mBufferedScanMsg.clear(); 6337 } 6338 } 6339 6340 class WaitForP2pDisableState extends State { 6341 private State mTransitionToState; 6342 @Override 6343 public void enter() { 6344 switch (getCurrentMessage().what) { 6345 case WifiMonitor.SUP_DISCONNECTION_EVENT: 6346 mTransitionToState = mInitialState; 6347 break; 6348 case CMD_STOP_DRIVER: 6349 mTransitionToState = mDriverStoppingState; 6350 break; 6351 case CMD_STOP_SUPPLICANT: 6352 mTransitionToState = mSupplicantStoppingState; 6353 break; 6354 default: 6355 mTransitionToState = mDriverStoppingState; 6356 break; 6357 } 6358 mWifiP2pChannel.sendMessage(WifiStateMachine.CMD_DISABLE_P2P_REQ); 6359 } 6360 @Override 6361 public boolean processMessage(Message message) { 6362 logStateAndMessage(message, this); 6363 6364 switch(message.what) { 6365 case WifiStateMachine.CMD_DISABLE_P2P_RSP: 6366 transitionTo(mTransitionToState); 6367 break; 6368 /* Defer wifi start/shut and driver commands */ 6369 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6370 case CMD_START_SUPPLICANT: 6371 case CMD_STOP_SUPPLICANT: 6372 case CMD_START_AP: 6373 case CMD_STOP_AP: 6374 case CMD_START_DRIVER: 6375 case CMD_STOP_DRIVER: 6376 case CMD_SET_OPERATIONAL_MODE: 6377 case CMD_SET_COUNTRY_CODE: 6378 case CMD_SET_FREQUENCY_BAND: 6379 case CMD_START_PACKET_FILTERING: 6380 case CMD_STOP_PACKET_FILTERING: 6381 case CMD_START_SCAN: 6382 case CMD_DISCONNECT: 6383 case CMD_REASSOCIATE: 6384 case CMD_RECONNECT: 6385 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 6386 deferMessage(message); 6387 break; 6388 default: 6389 return NOT_HANDLED; 6390 } 6391 return HANDLED; 6392 } 6393 } 6394 6395 class DriverStoppingState extends State { 6396 @Override 6397 public boolean processMessage(Message message) { 6398 logStateAndMessage(message, this); 6399 6400 switch(message.what) { 6401 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6402 SupplicantState state = handleSupplicantStateChange(message); 6403 if (state == SupplicantState.INTERFACE_DISABLED) { 6404 transitionTo(mDriverStoppedState); 6405 } 6406 break; 6407 /* Queue driver commands */ 6408 case CMD_START_DRIVER: 6409 case CMD_STOP_DRIVER: 6410 case CMD_SET_COUNTRY_CODE: 6411 case CMD_SET_FREQUENCY_BAND: 6412 case CMD_START_PACKET_FILTERING: 6413 case CMD_STOP_PACKET_FILTERING: 6414 case CMD_START_SCAN: 6415 case CMD_DISCONNECT: 6416 case CMD_REASSOCIATE: 6417 case CMD_RECONNECT: 6418 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 6419 deferMessage(message); 6420 break; 6421 default: 6422 return NOT_HANDLED; 6423 } 6424 return HANDLED; 6425 } 6426 } 6427 6428 class DriverStoppedState extends State { 6429 @Override 6430 public boolean processMessage(Message message) { 6431 logStateAndMessage(message, this); 6432 switch (message.what) { 6433 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6434 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 6435 SupplicantState state = stateChangeResult.state; 6436 // A WEXT bug means that we can be back to driver started state 6437 // unexpectedly 6438 if (SupplicantState.isDriverActive(state)) { 6439 transitionTo(mDriverStartedState); 6440 } 6441 break; 6442 case CMD_START_DRIVER: 6443 mWakeLock.acquire(); 6444 mWifiNative.startDriver(); 6445 mWakeLock.release(); 6446 transitionTo(mDriverStartingState); 6447 break; 6448 default: 6449 return NOT_HANDLED; 6450 } 6451 return HANDLED; 6452 } 6453 } 6454 6455 class ScanModeState extends State { 6456 private int mLastOperationMode; 6457 @Override 6458 public void enter() { 6459 mLastOperationMode = mOperationalMode; 6460 } 6461 @Override 6462 public boolean processMessage(Message message) { 6463 logStateAndMessage(message, this); 6464 6465 switch(message.what) { 6466 case CMD_SET_OPERATIONAL_MODE: 6467 if (message.arg1 == CONNECT_MODE) { 6468 6469 if (mLastOperationMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 6470 setWifiState(WIFI_STATE_ENABLED); 6471 // Load and re-enable networks when going back to enabled state 6472 // This is essential for networks to show up after restore 6473 mWifiConfigStore.loadAndEnableAllNetworks(); 6474 mWifiP2pChannel.sendMessage(CMD_ENABLE_P2P); 6475 } else { 6476 mWifiConfigStore.enableAllNetworks(); 6477 } 6478 // start a scan to trigger Quality network selection 6479 startScan(ENABLE_WIFI, 0, null, null); 6480 6481 // Loose last selection choice since user toggled WiFi 6482 mWifiConfigStore. 6483 setAndEnableLastSelectedConfiguration( 6484 WifiConfiguration.INVALID_NETWORK_ID); 6485 6486 mOperationalMode = CONNECT_MODE; 6487 transitionTo(mDisconnectedState); 6488 } else { 6489 // Nothing to do 6490 return HANDLED; 6491 } 6492 break; 6493 // Handle scan. All the connection related commands are 6494 // handled only in ConnectModeState 6495 case CMD_START_SCAN: 6496 handleScanRequest(WifiNative.SCAN_WITHOUT_CONNECTION_SETUP, message); 6497 break; 6498 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6499 SupplicantState state = handleSupplicantStateChange(message); 6500 if(DBG) log("SupplicantState= " + state); 6501 break; 6502 default: 6503 return NOT_HANDLED; 6504 } 6505 return HANDLED; 6506 } 6507 } 6508 6509 6510 String smToString(Message message) { 6511 return smToString(message.what); 6512 } 6513 6514 String smToString(int what) { 6515 String s = "unknown"; 6516 switch (what) { 6517 case WifiMonitor.DRIVER_HUNG_EVENT: 6518 s = "DRIVER_HUNG_EVENT"; 6519 break; 6520 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: 6521 s = "AsyncChannel.CMD_CHANNEL_HALF_CONNECTED"; 6522 break; 6523 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: 6524 s = "AsyncChannel.CMD_CHANNEL_DISCONNECTED"; 6525 break; 6526 case CMD_SET_FREQUENCY_BAND: 6527 s = "CMD_SET_FREQUENCY_BAND"; 6528 break; 6529 case CMD_DELAYED_NETWORK_DISCONNECT: 6530 s = "CMD_DELAYED_NETWORK_DISCONNECT"; 6531 break; 6532 case CMD_TEST_NETWORK_DISCONNECT: 6533 s = "CMD_TEST_NETWORK_DISCONNECT"; 6534 break; 6535 case CMD_OBTAINING_IP_ADDRESS_WATCHDOG_TIMER: 6536 s = "CMD_OBTAINING_IP_ADDRESS_WATCHDOG_TIMER"; 6537 break; 6538 case CMD_DISABLE_EPHEMERAL_NETWORK: 6539 s = "CMD_DISABLE_EPHEMERAL_NETWORK"; 6540 break; 6541 case CMD_START_DRIVER: 6542 s = "CMD_START_DRIVER"; 6543 break; 6544 case CMD_STOP_DRIVER: 6545 s = "CMD_STOP_DRIVER"; 6546 break; 6547 case CMD_STOP_SUPPLICANT: 6548 s = "CMD_STOP_SUPPLICANT"; 6549 break; 6550 case CMD_STOP_SUPPLICANT_FAILED: 6551 s = "CMD_STOP_SUPPLICANT_FAILED"; 6552 break; 6553 case CMD_START_SUPPLICANT: 6554 s = "CMD_START_SUPPLICANT"; 6555 break; 6556 case CMD_REQUEST_AP_CONFIG: 6557 s = "CMD_REQUEST_AP_CONFIG"; 6558 break; 6559 case CMD_RESPONSE_AP_CONFIG: 6560 s = "CMD_RESPONSE_AP_CONFIG"; 6561 break; 6562 case CMD_TETHER_STATE_CHANGE: 6563 s = "CMD_TETHER_STATE_CHANGE"; 6564 break; 6565 case CMD_TETHER_NOTIFICATION_TIMED_OUT: 6566 s = "CMD_TETHER_NOTIFICATION_TIMED_OUT"; 6567 break; 6568 case CMD_BLUETOOTH_ADAPTER_STATE_CHANGE: 6569 s = "CMD_BLUETOOTH_ADAPTER_STATE_CHANGE"; 6570 break; 6571 case CMD_ADD_OR_UPDATE_NETWORK: 6572 s = "CMD_ADD_OR_UPDATE_NETWORK"; 6573 break; 6574 case CMD_REMOVE_NETWORK: 6575 s = "CMD_REMOVE_NETWORK"; 6576 break; 6577 case CMD_ENABLE_NETWORK: 6578 s = "CMD_ENABLE_NETWORK"; 6579 break; 6580 case CMD_ENABLE_ALL_NETWORKS: 6581 s = "CMD_ENABLE_ALL_NETWORKS"; 6582 break; 6583 case CMD_AUTO_CONNECT: 6584 s = "CMD_AUTO_CONNECT"; 6585 break; 6586 case CMD_AUTO_ROAM: 6587 s = "CMD_AUTO_ROAM"; 6588 break; 6589 case CMD_AUTO_SAVE_NETWORK: 6590 s = "CMD_AUTO_SAVE_NETWORK"; 6591 break; 6592 case CMD_BOOT_COMPLETED: 6593 s = "CMD_BOOT_COMPLETED"; 6594 break; 6595 case DhcpStateMachine.CMD_START_DHCP: 6596 s = "CMD_START_DHCP"; 6597 break; 6598 case DhcpStateMachine.CMD_STOP_DHCP: 6599 s = "CMD_STOP_DHCP"; 6600 break; 6601 case DhcpStateMachine.CMD_RENEW_DHCP: 6602 s = "CMD_RENEW_DHCP"; 6603 break; 6604 case DhcpStateMachine.CMD_PRE_DHCP_ACTION: 6605 s = "CMD_PRE_DHCP_ACTION"; 6606 break; 6607 case DhcpStateMachine.CMD_POST_DHCP_ACTION: 6608 s = "CMD_POST_DHCP_ACTION"; 6609 break; 6610 case DhcpStateMachine.CMD_PRE_DHCP_ACTION_COMPLETE: 6611 s = "CMD_PRE_DHCP_ACTION_COMPLETE"; 6612 break; 6613 case DhcpStateMachine.CMD_ON_QUIT: 6614 s = "CMD_ON_QUIT"; 6615 break; 6616 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 6617 s = "WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST"; 6618 break; 6619 case WifiManager.DISABLE_NETWORK: 6620 s = "WifiManager.DISABLE_NETWORK"; 6621 break; 6622 case CMD_BLACKLIST_NETWORK: 6623 s = "CMD_BLACKLIST_NETWORK"; 6624 break; 6625 case CMD_CLEAR_BLACKLIST: 6626 s = "CMD_CLEAR_BLACKLIST"; 6627 break; 6628 case CMD_SAVE_CONFIG: 6629 s = "CMD_SAVE_CONFIG"; 6630 break; 6631 case CMD_GET_CONFIGURED_NETWORKS: 6632 s = "CMD_GET_CONFIGURED_NETWORKS"; 6633 break; 6634 case CMD_GET_SUPPORTED_FEATURES: 6635 s = "CMD_GET_SUPPORTED_FEATURES"; 6636 break; 6637 case CMD_UNWANTED_NETWORK: 6638 s = "CMD_UNWANTED_NETWORK"; 6639 break; 6640 case CMD_NETWORK_STATUS: 6641 s = "CMD_NETWORK_STATUS"; 6642 break; 6643 case CMD_GET_LINK_LAYER_STATS: 6644 s = "CMD_GET_LINK_LAYER_STATS"; 6645 break; 6646 case CMD_GET_MATCHING_CONFIG: 6647 s = "CMD_GET_MATCHING_CONFIG"; 6648 break; 6649 case CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS: 6650 s = "CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS"; 6651 break; 6652 case CMD_DISCONNECT: 6653 s = "CMD_DISCONNECT"; 6654 break; 6655 case CMD_RECONNECT: 6656 s = "CMD_RECONNECT"; 6657 break; 6658 case CMD_REASSOCIATE: 6659 s = "CMD_REASSOCIATE"; 6660 break; 6661 case CMD_GET_CONNECTION_STATISTICS: 6662 s = "CMD_GET_CONNECTION_STATISTICS"; 6663 break; 6664 case CMD_SET_HIGH_PERF_MODE: 6665 s = "CMD_SET_HIGH_PERF_MODE"; 6666 break; 6667 case CMD_SET_COUNTRY_CODE: 6668 s = "CMD_SET_COUNTRY_CODE"; 6669 break; 6670 case CMD_ENABLE_RSSI_POLL: 6671 s = "CMD_ENABLE_RSSI_POLL"; 6672 break; 6673 case CMD_RSSI_POLL: 6674 s = "CMD_RSSI_POLL"; 6675 break; 6676 case CMD_START_PACKET_FILTERING: 6677 s = "CMD_START_PACKET_FILTERING"; 6678 break; 6679 case CMD_STOP_PACKET_FILTERING: 6680 s = "CMD_STOP_PACKET_FILTERING"; 6681 break; 6682 case CMD_SET_SUSPEND_OPT_ENABLED: 6683 s = "CMD_SET_SUSPEND_OPT_ENABLED"; 6684 break; 6685 case CMD_NO_NETWORKS_PERIODIC_SCAN: 6686 s = "CMD_NO_NETWORKS_PERIODIC_SCAN"; 6687 break; 6688 case CMD_UPDATE_LINKPROPERTIES: 6689 s = "CMD_UPDATE_LINKPROPERTIES"; 6690 break; 6691 case CMD_RELOAD_TLS_AND_RECONNECT: 6692 s = "CMD_RELOAD_TLS_AND_RECONNECT"; 6693 break; 6694 case WifiManager.CONNECT_NETWORK: 6695 s = "CONNECT_NETWORK"; 6696 break; 6697 case WifiManager.SAVE_NETWORK: 6698 s = "SAVE_NETWORK"; 6699 break; 6700 case WifiManager.FORGET_NETWORK: 6701 s = "FORGET_NETWORK"; 6702 break; 6703 case WifiMonitor.SUP_CONNECTION_EVENT: 6704 s = "SUP_CONNECTION_EVENT"; 6705 break; 6706 case WifiMonitor.SUP_DISCONNECTION_EVENT: 6707 s = "SUP_DISCONNECTION_EVENT"; 6708 break; 6709 case WifiMonitor.SCAN_RESULTS_EVENT: 6710 s = "SCAN_RESULTS_EVENT"; 6711 break; 6712 case WifiMonitor.SCAN_FAILED_EVENT: 6713 s = "SCAN_FAILED_EVENT"; 6714 break; 6715 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6716 s = "SUPPLICANT_STATE_CHANGE_EVENT"; 6717 break; 6718 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 6719 s = "AUTHENTICATION_FAILURE_EVENT"; 6720 break; 6721 case WifiMonitor.SSID_TEMP_DISABLED: 6722 s = "SSID_TEMP_DISABLED"; 6723 break; 6724 case WifiMonitor.SSID_REENABLED: 6725 s = "SSID_REENABLED"; 6726 break; 6727 case WifiMonitor.WPS_SUCCESS_EVENT: 6728 s = "WPS_SUCCESS_EVENT"; 6729 break; 6730 case WifiMonitor.WPS_FAIL_EVENT: 6731 s = "WPS_FAIL_EVENT"; 6732 break; 6733 case WifiMonitor.SUP_REQUEST_IDENTITY: 6734 s = "SUP_REQUEST_IDENTITY"; 6735 break; 6736 case WifiMonitor.NETWORK_CONNECTION_EVENT: 6737 s = "NETWORK_CONNECTION_EVENT"; 6738 break; 6739 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6740 s = "NETWORK_DISCONNECTION_EVENT"; 6741 break; 6742 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 6743 s = "ASSOCIATION_REJECTION_EVENT"; 6744 break; 6745 case WifiMonitor.ANQP_DONE_EVENT: 6746 s = "WifiMonitor.ANQP_DONE_EVENT"; 6747 break; 6748 case WifiMonitor.RX_HS20_ANQP_ICON_EVENT: 6749 s = "WifiMonitor.RX_HS20_ANQP_ICON_EVENT"; 6750 break; 6751 case WifiMonitor.GAS_QUERY_DONE_EVENT: 6752 s = "WifiMonitor.GAS_QUERY_DONE_EVENT"; 6753 break; 6754 case WifiMonitor.HS20_DEAUTH_EVENT: 6755 s = "WifiMonitor.HS20_DEAUTH_EVENT"; 6756 break; 6757 case WifiMonitor.HS20_REMEDIATION_EVENT: 6758 s = "WifiMonitor.HS20_REMEDIATION_EVENT"; 6759 break; 6760 case WifiMonitor.GAS_QUERY_START_EVENT: 6761 s = "WifiMonitor.GAS_QUERY_START_EVENT"; 6762 break; 6763 case CMD_SET_OPERATIONAL_MODE: 6764 s = "CMD_SET_OPERATIONAL_MODE"; 6765 break; 6766 case CMD_START_SCAN: 6767 s = "CMD_START_SCAN"; 6768 break; 6769 case CMD_DISABLE_P2P_RSP: 6770 s = "CMD_DISABLE_P2P_RSP"; 6771 break; 6772 case CMD_DISABLE_P2P_REQ: 6773 s = "CMD_DISABLE_P2P_REQ"; 6774 break; 6775 case WifiP2pServiceImpl.GROUP_CREATING_TIMED_OUT: 6776 s = "GROUP_CREATING_TIMED_OUT"; 6777 break; 6778 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 6779 s = "P2P_CONNECTION_CHANGED"; 6780 break; 6781 case WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE: 6782 s = "P2P.DISCONNECT_WIFI_RESPONSE"; 6783 break; 6784 case WifiP2pServiceImpl.SET_MIRACAST_MODE: 6785 s = "P2P.SET_MIRACAST_MODE"; 6786 break; 6787 case WifiP2pServiceImpl.BLOCK_DISCOVERY: 6788 s = "P2P.BLOCK_DISCOVERY"; 6789 break; 6790 case WifiP2pServiceImpl.SET_COUNTRY_CODE: 6791 s = "P2P.SET_COUNTRY_CODE"; 6792 break; 6793 case WifiManager.CANCEL_WPS: 6794 s = "CANCEL_WPS"; 6795 break; 6796 case WifiManager.CANCEL_WPS_FAILED: 6797 s = "CANCEL_WPS_FAILED"; 6798 break; 6799 case WifiManager.CANCEL_WPS_SUCCEDED: 6800 s = "CANCEL_WPS_SUCCEDED"; 6801 break; 6802 case WifiManager.START_WPS: 6803 s = "START_WPS"; 6804 break; 6805 case WifiManager.START_WPS_SUCCEEDED: 6806 s = "START_WPS_SUCCEEDED"; 6807 break; 6808 case WifiManager.WPS_FAILED: 6809 s = "WPS_FAILED"; 6810 break; 6811 case WifiManager.WPS_COMPLETED: 6812 s = "WPS_COMPLETED"; 6813 break; 6814 case WifiManager.RSSI_PKTCNT_FETCH: 6815 s = "RSSI_PKTCNT_FETCH"; 6816 break; 6817 case CMD_IP_CONFIGURATION_LOST: 6818 s = "CMD_IP_CONFIGURATION_LOST"; 6819 break; 6820 case CMD_IP_CONFIGURATION_SUCCESSFUL: 6821 s = "CMD_IP_CONFIGURATION_SUCCESSFUL"; 6822 break; 6823 case CMD_IP_REACHABILITY_LOST: 6824 s = "CMD_IP_REACHABILITY_LOST"; 6825 break; 6826 case CMD_STATIC_IP_SUCCESS: 6827 s = "CMD_STATIC_IP_SUCCESSFUL"; 6828 break; 6829 case CMD_STATIC_IP_FAILURE: 6830 s = "CMD_STATIC_IP_FAILURE"; 6831 break; 6832 case DhcpStateMachine.DHCP_SUCCESS: 6833 s = "DHCP_SUCCESS"; 6834 break; 6835 case DhcpStateMachine.DHCP_FAILURE: 6836 s = "DHCP_FAILURE"; 6837 break; 6838 case CMD_TARGET_BSSID: 6839 s = "CMD_TARGET_BSSID"; 6840 break; 6841 case CMD_ASSOCIATED_BSSID: 6842 s = "CMD_ASSOCIATED_BSSID"; 6843 break; 6844 case CMD_REMOVE_APP_CONFIGURATIONS: 6845 s = "CMD_REMOVE_APP_CONFIGURATIONS"; 6846 break; 6847 case CMD_REMOVE_USER_CONFIGURATIONS: 6848 s = "CMD_REMOVE_USER_CONFIGURATIONS"; 6849 break; 6850 case CMD_ROAM_WATCHDOG_TIMER: 6851 s = "CMD_ROAM_WATCHDOG_TIMER"; 6852 break; 6853 case CMD_SCREEN_STATE_CHANGED: 6854 s = "CMD_SCREEN_STATE_CHANGED"; 6855 break; 6856 case CMD_DISCONNECTING_WATCHDOG_TIMER: 6857 s = "CMD_DISCONNECTING_WATCHDOG_TIMER"; 6858 break; 6859 case CMD_RESTART_AUTOJOIN_OFFLOAD: 6860 s = "CMD_RESTART_AUTOJOIN_OFFLOAD"; 6861 break; 6862 case CMD_STARTED_PNO_DBG: 6863 s = "CMD_STARTED_PNO_DBG"; 6864 break; 6865 case CMD_STARTED_GSCAN_DBG: 6866 s = "CMD_STARTED_GSCAN_DBG"; 6867 break; 6868 case CMD_PNO_NETWORK_FOUND: 6869 s = "CMD_PNO_NETWORK_FOUND"; 6870 break; 6871 case CMD_UPDATE_ASSOCIATED_SCAN_PERMISSION: 6872 s = "CMD_UPDATE_ASSOCIATED_SCAN_PERMISSION"; 6873 break; 6874 case CMD_START_IP_PACKET_OFFLOAD: 6875 s = "CMD_START_IP_PACKET_OFFLOAD"; 6876 break; 6877 case CMD_STOP_IP_PACKET_OFFLOAD: 6878 s = "CMD_STOP_IP_PACKET_OFFLOAD"; 6879 break; 6880 case CMD_START_RSSI_MONITORING_OFFLOAD: 6881 s = "CMD_START_RSSI_MONITORING_OFFLOAD"; 6882 break; 6883 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 6884 s = "CMD_STOP_RSSI_MONITORING_OFFLOAD"; 6885 break; 6886 case CMD_RSSI_THRESHOLD_BREACH: 6887 s = "CMD_RSSI_THRESHOLD_BREACH"; 6888 break; 6889 case CMD_USER_SWITCH: 6890 s = "CMD_USER_SWITCH"; 6891 break; 6892 default: 6893 s = "what:" + Integer.toString(what); 6894 break; 6895 } 6896 return s; 6897 } 6898 6899 void registerConnected() { 6900 if (mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 6901 WifiConfiguration config = mWifiConfigStore.getWifiConfiguration(mLastNetworkId); 6902 if (config != null) { 6903 //Here we will clear all disable counters once a network is connected 6904 //records how long this network is connected in future 6905 config.lastConnected = System.currentTimeMillis(); 6906 config.getNetworkSelectionStatus().clearDisableReasonCounter(); 6907 } 6908 mBadLinkspeedcount = 0; 6909 } 6910 } 6911 6912 void registerDisconnected() { 6913 if (mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 6914 long now_ms = System.currentTimeMillis(); 6915 // We are switching away from this configuration, 6916 // hence record the time we were connected last 6917 WifiConfiguration config = mWifiConfigStore.getWifiConfiguration(mLastNetworkId); 6918 if (config != null) { 6919 config.lastDisconnected = System.currentTimeMillis(); 6920 if (config.ephemeral) { 6921 // Remove ephemeral WifiConfigurations from file 6922 mWifiConfigStore.forgetNetwork(mLastNetworkId); 6923 } 6924 } 6925 } 6926 } 6927 6928 void noteWifiDisabledWhileAssociated() { 6929 // We got disabled by user while we were associated, make note of it 6930 int rssi = mWifiInfo.getRssi(); 6931 WifiConfiguration config = getCurrentWifiConfiguration(); 6932 if (getCurrentState() == mConnectedState 6933 && rssi != WifiInfo.INVALID_RSSI 6934 && config != null) { 6935 boolean is24GHz = mWifiInfo.is24GHz(); 6936 boolean isBadRSSI = (is24GHz && rssi < mWifiConfigStore.thresholdMinimumRssi24.get()) 6937 || (!is24GHz && rssi < mWifiConfigStore.thresholdMinimumRssi5.get()); 6938 boolean isLowRSSI = (is24GHz && rssi < mWifiConfigStore.thresholdQualifiedRssi24.get()) 6939 || (!is24GHz && mWifiInfo.getRssi() 6940 < mWifiConfigStore.thresholdQualifiedRssi5.get()); 6941 boolean isHighRSSI = (is24GHz && rssi 6942 >= mWifiConfigStore.thresholdSaturatedRssi24.get()) 6943 || (!is24GHz && mWifiInfo.getRssi() 6944 >= mWifiConfigStore.thresholdSaturatedRssi5.get()); 6945 if (isBadRSSI) { 6946 // Take note that we got disabled while RSSI was Bad 6947 config.numUserTriggeredWifiDisableLowRSSI++; 6948 } else if (isLowRSSI) { 6949 // Take note that we got disabled while RSSI was Low 6950 config.numUserTriggeredWifiDisableBadRSSI++; 6951 } else if (!isHighRSSI) { 6952 // Take note that we got disabled while RSSI was Not high 6953 config.numUserTriggeredWifiDisableNotHighRSSI++; 6954 } 6955 } 6956 } 6957 6958 WifiConfiguration getCurrentWifiConfiguration() { 6959 if (mLastNetworkId == WifiConfiguration.INVALID_NETWORK_ID) { 6960 return null; 6961 } 6962 return mWifiConfigStore.getWifiConfiguration(mLastNetworkId); 6963 } 6964 6965 ScanResult getCurrentScanResult() { 6966 WifiConfiguration config = getCurrentWifiConfiguration(); 6967 if (config == null) { 6968 return null; 6969 } 6970 String BSSID = mWifiInfo.getBSSID(); 6971 if (BSSID == null) { 6972 BSSID = mTargetRoamBSSID; 6973 } 6974 ScanDetailCache scanDetailCache = 6975 mWifiConfigStore.getScanDetailCache(config); 6976 6977 if (scanDetailCache == null) { 6978 return null; 6979 } 6980 6981 return scanDetailCache.get(BSSID); 6982 } 6983 6984 String getCurrentBSSID() { 6985 if (linkDebouncing) { 6986 return null; 6987 } 6988 return mLastBssid; 6989 } 6990 6991 class ConnectModeState extends State { 6992 6993 @Override 6994 public void enter() { 6995 connectScanningService(); 6996 } 6997 6998 @Override 6999 public boolean processMessage(Message message) { 7000 WifiConfiguration config; 7001 int netId; 7002 boolean ok; 7003 boolean didDisconnect; 7004 String bssid; 7005 String ssid; 7006 NetworkUpdateResult result; 7007 logStateAndMessage(message, this); 7008 7009 switch (message.what) { 7010 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 7011 mWifiLogger.captureBugReportData(WifiLogger.REPORT_REASON_ASSOC_FAILURE); 7012 didBlackListBSSID = false; 7013 bssid = (String) message.obj; 7014 if (bssid == null || TextUtils.isEmpty(bssid)) { 7015 // If BSSID is null, use the target roam BSSID 7016 bssid = mTargetRoamBSSID; 7017 } 7018 if (bssid != null) { 7019 // If we have a BSSID, tell configStore to black list it 7020 synchronized(mScanResultCache) { 7021 didBlackListBSSID = mWifiConfigStore.handleBSSIDBlackList 7022 (mLastNetworkId, bssid, false); 7023 } 7024 } 7025 7026 mWifiConfigStore.updateNetworkSelectionStatus(mTargetNetworkId, 7027 WifiConfiguration.NetworkSelectionStatus 7028 .DISABLED_ASSOCIATION_REJECTION); 7029 7030 mSupplicantStateTracker.sendMessage(WifiMonitor.ASSOCIATION_REJECTION_EVENT); 7031 break; 7032 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 7033 mWifiLogger.captureBugReportData(WifiLogger.REPORT_REASON_AUTH_FAILURE); 7034 mSupplicantStateTracker.sendMessage(WifiMonitor.AUTHENTICATION_FAILURE_EVENT); 7035 if (mTargetNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 7036 mWifiConfigStore.updateNetworkSelectionStatus(mTargetNetworkId, 7037 WifiConfiguration.NetworkSelectionStatus 7038 .DISABLED_AUTHENTICATION_FAILURE); 7039 } 7040 break; 7041 case WifiMonitor.SSID_TEMP_DISABLED: 7042 Log.e(TAG, "Supplicant SSID temporary disabled:" 7043 + mWifiConfigStore.getWifiConfiguration(message.arg1)); 7044 mWifiConfigStore.updateNetworkSelectionStatus( 7045 message.arg1, 7046 WifiConfiguration.NetworkSelectionStatus 7047 .DISABLED_AUTHENTICATION_FAILURE); 7048 break; 7049 case WifiMonitor.SSID_REENABLED: 7050 Log.d(TAG, "Supplicant SSID reenable:" 7051 + mWifiConfigStore.getWifiConfiguration(message.arg1)); 7052 // Do not re-enable it in Quality Network Selection since framework has its own 7053 // Algorithm of disable/enable 7054 break; 7055 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 7056 SupplicantState state = handleSupplicantStateChange(message); 7057 // A driver/firmware hang can now put the interface in a down state. 7058 // We detect the interface going down and recover from it 7059 if (!SupplicantState.isDriverActive(state)) { 7060 if (mNetworkInfo.getState() != NetworkInfo.State.DISCONNECTED) { 7061 handleNetworkDisconnect(); 7062 } 7063 log("Detected an interface down, restart driver"); 7064 transitionTo(mDriverStoppedState); 7065 sendMessage(CMD_START_DRIVER); 7066 break; 7067 } 7068 7069 // Supplicant can fail to report a NETWORK_DISCONNECTION_EVENT 7070 // when authentication times out after a successful connection, 7071 // we can figure this from the supplicant state. If supplicant 7072 // state is DISCONNECTED, but the mNetworkInfo says we are not 7073 // disconnected, we need to handle a disconnection 7074 if (!linkDebouncing && state == SupplicantState.DISCONNECTED && 7075 mNetworkInfo.getState() != NetworkInfo.State.DISCONNECTED) { 7076 if (DBG) log("Missed CTRL-EVENT-DISCONNECTED, disconnect"); 7077 handleNetworkDisconnect(); 7078 transitionTo(mDisconnectedState); 7079 } 7080 7081 // If we have COMPLETED a connection to a BSSID, start doing 7082 // DNAv4/DNAv6 -style probing for on-link neighbors of 7083 // interest (e.g. routers); harmless if none are configured. 7084 if (state == SupplicantState.COMPLETED) { 7085 if (mIpReachabilityMonitor != null) { 7086 mIpReachabilityMonitor.probeAll(); 7087 } 7088 } 7089 break; 7090 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 7091 if (message.arg1 == 1) { 7092 mWifiNative.disconnect(); 7093 mTemporarilyDisconnectWifi = true; 7094 } else { 7095 mWifiNative.reconnect(); 7096 mTemporarilyDisconnectWifi = false; 7097 } 7098 break; 7099 case CMD_ADD_OR_UPDATE_NETWORK: 7100 // Only the current foreground user can modify networks. 7101 if (UserHandle.getUserId(message.sendingUid) != mCurrentUserId) { 7102 loge("Only the current foreground user can modify networks " 7103 + " currentUserId=" + mCurrentUserId 7104 + " sendingUserId=" + UserHandle.getUserId(message.sendingUid)); 7105 replyToMessage(message, message.what, FAILURE); 7106 break; 7107 } 7108 7109 config = (WifiConfiguration) message.obj; 7110 7111 if (!recordUidIfAuthorized(config, message.sendingUid, 7112 /* onlyAnnotate */ false)) { 7113 logw("Not authorized to update network " 7114 + " config=" + config.SSID 7115 + " cnid=" + config.networkId 7116 + " uid=" + message.sendingUid); 7117 replyToMessage(message, message.what, FAILURE); 7118 break; 7119 } 7120 7121 int res = mWifiConfigStore.addOrUpdateNetwork(config, message.sendingUid); 7122 if (res < 0) { 7123 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 7124 } else { 7125 WifiConfiguration curConfig = getCurrentWifiConfiguration(); 7126 if (curConfig != null && config != null) { 7127 if (curConfig.priority < config.priority 7128 && config.status == WifiConfiguration.Status.ENABLED) { 7129 // Interpret this as a connect attempt 7130 // Set the last selected configuration so as to allow the system to 7131 // stick the last user choice without persisting the choice 7132 mWifiConfigStore.setAndEnableLastSelectedConfiguration(res); 7133 mWifiConfigStore.updateLastConnectUid(config, message.sendingUid); 7134 boolean persist = mWifiConfigStore 7135 .checkConfigOverridePermission(message.sendingUid); 7136 mWifiQualifiedNetworkSelector 7137 .userSelectNetwork(res, persist); 7138 7139 // Remember time of last connection attempt 7140 lastConnectAttemptTimestamp = System.currentTimeMillis(); 7141 //Create clearcut connection event of type USER_SELECTED 7142 mWifiMetrics.startConnectionEvent(mWifiInfo, 7143 WifiMetricsProto.ConnectionEvent.ROAM_USER_SELECTED); 7144 mWifiConnectionStatistics.numWifiManagerJoinAttempt++; 7145 7146 // As a courtesy to the caller, trigger a scan now 7147 startScan(ADD_OR_UPDATE_SOURCE, 0, null, null); 7148 } 7149 } 7150 } 7151 replyToMessage(message, CMD_ADD_OR_UPDATE_NETWORK, res); 7152 break; 7153 case CMD_REMOVE_NETWORK: 7154 // Only the current foreground user can modify networks. 7155 if (UserHandle.getUserId(message.sendingUid) != mCurrentUserId) { 7156 loge("Only the current foreground user can modify networks " 7157 + " currentUserId=" + mCurrentUserId 7158 + " sendingUserId=" + UserHandle.getUserId(message.sendingUid)); 7159 replyToMessage(message, message.what, FAILURE); 7160 break; 7161 } 7162 netId = message.arg1; 7163 7164 if (!mWifiConfigStore.canModifyNetwork(message.sendingUid, netId, 7165 /* onlyAnnotate */ false)) { 7166 logw("Not authorized to remove network " 7167 + " cnid=" + netId 7168 + " uid=" + message.sendingUid); 7169 replyToMessage(message, message.what, FAILURE); 7170 break; 7171 } 7172 7173 ok = mWifiConfigStore.removeNetwork(message.arg1); 7174 if (!ok) { 7175 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 7176 } 7177 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 7178 break; 7179 case CMD_ENABLE_NETWORK: 7180 // Only the current foreground user can modify networks. 7181 if (UserHandle.getUserId(message.sendingUid) != mCurrentUserId) { 7182 loge("Only the current foreground user can modify networks " 7183 + " currentUserId=" + mCurrentUserId 7184 + " sendingUserId=" + UserHandle.getUserId(message.sendingUid)); 7185 replyToMessage(message, message.what, FAILURE); 7186 break; 7187 } 7188 7189 boolean disableOthers = message.arg2 == 1; 7190 netId = message.arg1; 7191 config = mWifiConfigStore.getWifiConfiguration(netId); 7192 if (config == null) { 7193 loge("No network with id = " + netId); 7194 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 7195 replyToMessage(message, message.what, FAILURE); 7196 break; 7197 } 7198 7199 // disable other only means select this network, does not mean all other 7200 // networks need to be disabled 7201 if (disableOthers) { 7202 mWifiQualifiedNetworkSelector.enableNetworkByUser(config); 7203 // Remember time of last connection attempt 7204 lastConnectAttemptTimestamp = System.currentTimeMillis(); 7205 mWifiMetrics.startConnectionEvent(mWifiInfo, 7206 WifiMetricsProto.ConnectionEvent.ROAM_USER_SELECTED); 7207 mWifiConnectionStatistics.numWifiManagerJoinAttempt++; 7208 } 7209 // Cancel auto roam requests 7210 autoRoamSetBSSID(netId, "any"); 7211 7212 int uid = message.sendingUid; 7213 mWifiQualifiedNetworkSelector.enableNetworkByUser(config); 7214 ok = mWifiConfigStore.enableNetwork(netId, disableOthers, uid); 7215 if (!ok) { 7216 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 7217 } else if (disableOthers) { 7218 mTargetNetworkId = netId; 7219 } 7220 7221 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 7222 break; 7223 case CMD_ENABLE_ALL_NETWORKS: 7224 long time = android.os.SystemClock.elapsedRealtime(); 7225 if (time - mLastEnableAllNetworksTime > MIN_INTERVAL_ENABLE_ALL_NETWORKS_MS) { 7226 mWifiConfigStore.enableAllNetworks(); 7227 mLastEnableAllNetworksTime = time; 7228 } 7229 break; 7230 case WifiManager.DISABLE_NETWORK: 7231 if (mWifiConfigStore.updateNetworkSelectionStatus(message.arg1, 7232 WifiConfiguration.NetworkSelectionStatus.DISABLED_BY_WIFI_MANAGER)) { 7233 replyToMessage(message, WifiManager.DISABLE_NETWORK_SUCCEEDED); 7234 } else { 7235 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 7236 replyToMessage(message, WifiManager.DISABLE_NETWORK_FAILED, 7237 WifiManager.ERROR); 7238 } 7239 break; 7240 case CMD_DISABLE_EPHEMERAL_NETWORK: 7241 config = mWifiConfigStore.disableEphemeralNetwork((String)message.obj); 7242 if (config != null) { 7243 if (config.networkId == mLastNetworkId) { 7244 // Disconnect and let autojoin reselect a new network 7245 sendMessage(CMD_DISCONNECT); 7246 } 7247 } 7248 break; 7249 case CMD_BLACKLIST_NETWORK: 7250 mWifiConfigStore.blackListBssid((String) message.obj); 7251 break; 7252 case CMD_CLEAR_BLACKLIST: 7253 mWifiConfigStore.clearBssidBlacklist(); 7254 break; 7255 case CMD_SAVE_CONFIG: 7256 ok = mWifiConfigStore.saveConfig(); 7257 7258 if (DBG) logd("did save config " + ok); 7259 replyToMessage(message, CMD_SAVE_CONFIG, ok ? SUCCESS : FAILURE); 7260 7261 // Inform the backup manager about a data change 7262 IBackupManager ibm = IBackupManager.Stub.asInterface( 7263 mFacade.getService(Context.BACKUP_SERVICE)); 7264 if (ibm != null) { 7265 try { 7266 ibm.dataChanged("com.android.providers.settings"); 7267 } catch (Exception e) { 7268 // Try again later 7269 } 7270 } 7271 break; 7272 case CMD_GET_CONFIGURED_NETWORKS: 7273 replyToMessage(message, message.what, 7274 mWifiConfigStore.getConfiguredNetworks()); 7275 break; 7276 case WifiMonitor.SUP_REQUEST_IDENTITY: 7277 int networkId = message.arg2; 7278 boolean identitySent = false; 7279 int eapMethod = WifiEnterpriseConfig.Eap.NONE; 7280 7281 if (targetWificonfiguration != null 7282 && targetWificonfiguration.enterpriseConfig != null) { 7283 eapMethod = targetWificonfiguration.enterpriseConfig.getEapMethod(); 7284 } 7285 7286 // For SIM & AKA/AKA' EAP method Only, get identity from ICC 7287 if (targetWificonfiguration != null 7288 && targetWificonfiguration.networkId == networkId 7289 && targetWificonfiguration.allowedKeyManagement 7290 .get(WifiConfiguration.KeyMgmt.IEEE8021X) 7291 && (eapMethod == WifiEnterpriseConfig.Eap.SIM 7292 || eapMethod == WifiEnterpriseConfig.Eap.AKA 7293 || eapMethod == WifiEnterpriseConfig.Eap.AKA_PRIME)) { 7294 TelephonyManager tm = (TelephonyManager) 7295 mContext.getSystemService(Context.TELEPHONY_SERVICE); 7296 if (tm != null) { 7297 String imsi = tm.getSubscriberId(); 7298 String mccMnc = ""; 7299 7300 if (tm.getSimState() == TelephonyManager.SIM_STATE_READY) 7301 mccMnc = tm.getSimOperator(); 7302 7303 String identity = buildIdentity(eapMethod, imsi, mccMnc); 7304 7305 if (!identity.isEmpty()) { 7306 mWifiNative.simIdentityResponse(networkId, identity); 7307 identitySent = true; 7308 } 7309 } 7310 } 7311 if (!identitySent) { 7312 // Supplicant lacks credentials to connect to that network, hence black list 7313 ssid = (String) message.obj; 7314 if (targetWificonfiguration != null && ssid != null 7315 && targetWificonfiguration.SSID != null 7316 && targetWificonfiguration.SSID.equals("\"" + ssid + "\"")) { 7317 mWifiConfigStore.updateNetworkSelectionStatus(targetWificonfiguration, 7318 WifiConfiguration.NetworkSelectionStatus 7319 .DISABLED_AUTHENTICATION_NO_CREDENTIALS); 7320 } 7321 // Disconnect now, as we don't have any way to fullfill 7322 // the supplicant request. 7323 mWifiConfigStore.setAndEnableLastSelectedConfiguration( 7324 WifiConfiguration.INVALID_NETWORK_ID); 7325 mWifiNative.disconnect(); 7326 } 7327 break; 7328 case WifiMonitor.SUP_REQUEST_SIM_AUTH: 7329 logd("Received SUP_REQUEST_SIM_AUTH"); 7330 SimAuthRequestData requestData = (SimAuthRequestData) message.obj; 7331 if (requestData != null) { 7332 if (requestData.protocol == WifiEnterpriseConfig.Eap.SIM) { 7333 handleGsmAuthRequest(requestData); 7334 } else if (requestData.protocol == WifiEnterpriseConfig.Eap.AKA 7335 || requestData.protocol == WifiEnterpriseConfig.Eap.AKA_PRIME) { 7336 handle3GAuthRequest(requestData); 7337 } 7338 } else { 7339 loge("Invalid sim auth request"); 7340 } 7341 break; 7342 case CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS: 7343 replyToMessage(message, message.what, 7344 mWifiConfigStore.getPrivilegedConfiguredNetworks()); 7345 break; 7346 case CMD_GET_MATCHING_CONFIG: 7347 replyToMessage(message, message.what, 7348 mWifiConfigStore.getMatchingConfig((ScanResult)message.obj)); 7349 break; 7350 /* Do a redundant disconnect without transition */ 7351 case CMD_DISCONNECT: 7352 mWifiConfigStore.setAndEnableLastSelectedConfiguration 7353 (WifiConfiguration.INVALID_NETWORK_ID); 7354 mWifiNative.disconnect(); 7355 break; 7356 case CMD_RECONNECT: 7357 mWifiQualifiedNetworkSelector.selectQualifiedNetwork(false); 7358 break; 7359 case CMD_REASSOCIATE: 7360 lastConnectAttemptTimestamp = System.currentTimeMillis(); 7361 mWifiMetrics.startConnectionEvent(mWifiInfo); 7362 mWifiNative.reassociate(); 7363 break; 7364 case CMD_RELOAD_TLS_AND_RECONNECT: 7365 if (mWifiConfigStore.needsUnlockedKeyStore()) { 7366 logd("Reconnecting to give a chance to un-connected TLS networks"); 7367 mWifiNative.disconnect(); 7368 lastConnectAttemptTimestamp = System.currentTimeMillis(); 7369 mWifiMetrics.startConnectionEvent(mWifiInfo); 7370 mWifiNative.reconnect(); 7371 } 7372 break; 7373 case CMD_AUTO_ROAM: 7374 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 7375 return HANDLED; 7376 case CMD_AUTO_CONNECT: 7377 /* Work Around: wpa_supplicant can get in a bad state where it returns a non 7378 * associated status to the STATUS command but somehow-someplace still thinks 7379 * it is associated and thus will ignore select/reconnect command with 7380 * following message: 7381 * "Already associated with the selected network - do nothing" 7382 * 7383 * Hence, sends a disconnect to supplicant first. 7384 */ 7385 didDisconnect = false; 7386 if (getCurrentState() != mDisconnectedState) { 7387 /** Supplicant will ignore the reconnect if we are currently associated, 7388 * hence trigger a disconnect 7389 */ 7390 didDisconnect = true; 7391 mWifiNative.disconnect(); 7392 } 7393 7394 /* connect command coming from auto-join */ 7395 netId = message.arg1; 7396 mTargetNetworkId = netId; 7397 mTargetRoamBSSID = (String) message.obj; 7398 config = mWifiConfigStore.getWifiConfiguration(netId); 7399 logd("CMD_AUTO_CONNECT sup state " 7400 + mSupplicantStateTracker.getSupplicantStateName() 7401 + " my state " + getCurrentState().getName() 7402 + " nid=" + Integer.toString(netId) 7403 + " roam=" + Boolean.toString(mAutoRoaming)); 7404 if (config == null) { 7405 loge("AUTO_CONNECT and no config, bail out..."); 7406 break; 7407 } 7408 7409 /* Make sure we cancel any previous roam request */ 7410 setTargetBssid(config, mTargetRoamBSSID); 7411 7412 /* Save the network config */ 7413 logd("CMD_AUTO_CONNECT will save config -> " + config.SSID 7414 + " nid=" + Integer.toString(netId)); 7415 result = mWifiConfigStore.saveNetwork(config, WifiConfiguration.UNKNOWN_UID); 7416 netId = result.getNetworkId(); 7417 logd("CMD_AUTO_CONNECT did save config -> " 7418 + " nid=" + Integer.toString(netId)); 7419 7420 // Since we updated the config,read it back from config store: 7421 config = mWifiConfigStore.getWifiConfiguration(netId); 7422 if (config == null) { 7423 loge("CMD_AUTO_CONNECT couldn't update the config, got null config"); 7424 break; 7425 } 7426 if (netId != config.networkId) { 7427 loge("CMD_AUTO_CONNECT couldn't update the config, want" 7428 + " nid=" + Integer.toString(netId) + " but got" + config.networkId); 7429 break; 7430 } 7431 7432 if (deferForUserInput(message, netId, false)) { 7433 break; 7434 } else if (mWifiConfigStore.getWifiConfiguration(netId).userApproved == 7435 WifiConfiguration.USER_BANNED) { 7436 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 7437 WifiManager.NOT_AUTHORIZED); 7438 break; 7439 } 7440 7441 // Make sure the network is enabled, since supplicant will not reenable it 7442 mWifiConfigStore.enableNetworkWithoutBroadcast(netId, false); 7443 7444 // If we're autojoining a network that the user or an app explicitly selected, 7445 // keep track of the UID that selected it. 7446 // TODO(b/26786318): Keep track of the lastSelectedConfiguration and the 7447 // lastConnectUid on a per-user basis. 7448 int lastConnectUid = WifiConfiguration.UNKNOWN_UID; 7449 if (mWifiConfigStore.isLastSelectedConfiguration(config) 7450 && UserHandle.getUserId(config.lastConnectUid) == mCurrentUserId) { 7451 lastConnectUid = config.lastConnectUid; 7452 } 7453 7454 if (mWifiConfigStore.selectNetwork(config, /* updatePriorities = */ false, 7455 lastConnectUid) && mWifiNative.reconnect()) { 7456 lastConnectAttemptTimestamp = System.currentTimeMillis(); 7457 mWifiMetrics.startConnectionEvent(mWifiInfo, 7458 WifiMetricsProto.ConnectionEvent.ROAM_UNRELATED); 7459 targetWificonfiguration = mWifiConfigStore.getWifiConfiguration(netId); 7460 config = mWifiConfigStore.getWifiConfiguration(netId); 7461 if (config != null 7462 && !mWifiConfigStore.isLastSelectedConfiguration(config)) { 7463 // If we autojoined a different config than the user selected one, 7464 // it means we could not see the last user selection, 7465 // or that the last user selection was faulty and ended up blacklisted 7466 // for some reason (in which case the user is notified with an error 7467 // message in the Wifi picker), and thus we managed to auto-join away 7468 // from the selected config. -> in that case we need to forget 7469 // the selection because we don't want to abruptly switch back to it. 7470 // 7471 // Note that the user selection is also forgotten after a period of time 7472 // during which the device has been disconnected. 7473 // The default value is 30 minutes : see the code path at bottom of 7474 // setScanResults() function. 7475 mWifiConfigStore. 7476 setAndEnableLastSelectedConfiguration( 7477 WifiConfiguration.INVALID_NETWORK_ID); 7478 } 7479 mAutoRoaming = false; 7480 if (isRoaming() || linkDebouncing) { 7481 transitionTo(mRoamingState); 7482 } else if (didDisconnect) { 7483 transitionTo(mDisconnectingState); 7484 } else { 7485 /* Already in disconnected state, nothing to change */ 7486 if (!mScreenOn && mLegacyPnoEnabled && mBackgroundScanSupported) { 7487 int delay = 60 * 1000; 7488 if (VDBG) { 7489 logd("Starting PNO alarm: " + delay); 7490 } 7491 mAlarmManager.set(AlarmManager.RTC_WAKEUP, 7492 System.currentTimeMillis() + delay, 7493 mPnoIntent); 7494 } 7495 mRestartAutoJoinOffloadCounter++; 7496 } 7497 } else { 7498 loge("Failed to connect config: " + config + " netId: " + netId); 7499 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 7500 WifiManager.ERROR); 7501 break; 7502 } 7503 break; 7504 case CMD_REMOVE_APP_CONFIGURATIONS: 7505 mWifiConfigStore.removeNetworksForApp((ApplicationInfo) message.obj); 7506 break; 7507 case CMD_REMOVE_USER_CONFIGURATIONS: 7508 mWifiConfigStore.removeNetworksForUser(message.arg1); 7509 break; 7510 case WifiManager.CONNECT_NETWORK: 7511 // Only the current foreground user can modify networks. 7512 if (UserHandle.getUserId(message.sendingUid) != mCurrentUserId) { 7513 loge("Only the current foreground user can modify networks " 7514 + " currentUserId=" + mCurrentUserId 7515 + " sendingUserId=" + UserHandle.getUserId(message.sendingUid)); 7516 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 7517 WifiManager.NOT_AUTHORIZED); 7518 break; 7519 } 7520 7521 /** 7522 * The connect message can contain a network id passed as arg1 on message or 7523 * or a config passed as obj on message. 7524 * For a new network, a config is passed to create and connect. 7525 * For an existing network, a network id is passed 7526 */ 7527 netId = message.arg1; 7528 config = (WifiConfiguration) message.obj; 7529 mWifiConnectionStatistics.numWifiManagerJoinAttempt++; 7530 boolean updatedExisting = false; 7531 7532 /* Save the network config */ 7533 if (config != null) { 7534 // When connecting to an access point, WifiStateMachine wants to update the 7535 // relevant config with administrative data. This update should not be 7536 // considered a 'real' update, therefore lockdown by Device Owner must be 7537 // disregarded. 7538 if (!recordUidIfAuthorized(config, message.sendingUid, 7539 /* onlyAnnotate */ true)) { 7540 logw("Not authorized to update network " 7541 + " config=" + config.SSID 7542 + " cnid=" + config.networkId 7543 + " uid=" + message.sendingUid); 7544 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 7545 WifiManager.NOT_AUTHORIZED); 7546 break; 7547 } 7548 7549 String configKey = config.configKey(true /* allowCached */); 7550 WifiConfiguration savedConfig = 7551 mWifiConfigStore.getWifiConfiguration(configKey); 7552 if (savedConfig != null) { 7553 // There is an existing config with this netId, but it wasn't exposed 7554 // (either AUTO_JOIN_DELETED or ephemeral; see WifiConfigStore# 7555 // getConfiguredNetworks). Remove those bits and update the config. 7556 config = savedConfig; 7557 logd("CONNECT_NETWORK updating existing config with id=" + 7558 config.networkId + " configKey=" + configKey); 7559 config.ephemeral = false; 7560 mWifiConfigStore.updateNetworkSelectionStatus(config, 7561 WifiConfiguration.NetworkSelectionStatus 7562 .NETWORK_SELECTION_ENABLE); 7563 updatedExisting = true; 7564 } 7565 7566 result = mWifiConfigStore.saveNetwork(config, message.sendingUid); 7567 netId = result.getNetworkId(); 7568 } 7569 config = mWifiConfigStore.getWifiConfiguration(netId); 7570 7571 if (config == null) { 7572 logd("CONNECT_NETWORK no config for id=" + Integer.toString(netId) + " " 7573 + mSupplicantStateTracker.getSupplicantStateName() + " my state " 7574 + getCurrentState().getName()); 7575 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 7576 WifiManager.ERROR); 7577 break; 7578 } 7579 mTargetNetworkId = netId; 7580 autoRoamSetBSSID(netId, "any"); 7581 7582 if (message.sendingUid == Process.WIFI_UID 7583 || message.sendingUid == Process.SYSTEM_UID) { 7584 // As a sanity measure, clear the BSSID in the supplicant network block. 7585 // If system or Wifi Settings want to connect, they will not 7586 // specify the BSSID. 7587 // If an app however had added a BSSID to this configuration, and the BSSID 7588 // was wrong, Then we would forever fail to connect until that BSSID 7589 // is cleaned up. 7590 clearConfigBSSID(config, "CONNECT_NETWORK"); 7591 } 7592 7593 if (deferForUserInput(message, netId, true)) { 7594 break; 7595 } else if (mWifiConfigStore.getWifiConfiguration(netId).userApproved == 7596 WifiConfiguration.USER_BANNED) { 7597 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 7598 WifiManager.NOT_AUTHORIZED); 7599 break; 7600 } 7601 7602 mAutoRoaming = false; 7603 7604 /* Tell network selection the user did try to connect to that network if from 7605 settings */ 7606 boolean persist = 7607 mWifiConfigStore.checkConfigOverridePermission(message.sendingUid); 7608 7609 7610 mWifiConfigStore.setAndEnableLastSelectedConfiguration(netId); 7611 mWifiQualifiedNetworkSelector.userSelectNetwork(netId, persist); 7612 didDisconnect = false; 7613 if (mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID 7614 && mLastNetworkId != netId) { 7615 /** Supplicant will ignore the reconnect if we are currently associated, 7616 * hence trigger a disconnect 7617 */ 7618 didDisconnect = true; 7619 mWifiNative.disconnect(); 7620 } 7621 7622 // Make sure the network is enabled, since supplicant will not reenable it 7623 mWifiConfigStore.enableNetworkWithoutBroadcast(netId, false); 7624 7625 if (mWifiConfigStore.selectNetwork(config, /* updatePriorities = */ true, 7626 message.sendingUid) && mWifiNative.reconnect()) { 7627 lastConnectAttemptTimestamp = System.currentTimeMillis(); 7628 mWifiMetrics.startConnectionEvent(mWifiInfo, 7629 WifiMetricsProto.ConnectionEvent.ROAM_USER_SELECTED); 7630 targetWificonfiguration = mWifiConfigStore.getWifiConfiguration(netId); 7631 7632 /* The state tracker handles enabling networks upon completion/failure */ 7633 mSupplicantStateTracker.sendMessage(WifiManager.CONNECT_NETWORK); 7634 replyToMessage(message, WifiManager.CONNECT_NETWORK_SUCCEEDED); 7635 if (didDisconnect) { 7636 /* Expect a disconnection from the old connection */ 7637 transitionTo(mDisconnectingState); 7638 } else if (updatedExisting && getCurrentState() == mConnectedState && 7639 getCurrentWifiConfiguration().networkId == netId) { 7640 // Update the current set of network capabilities, but stay in the 7641 // current state. 7642 updateCapabilities(config); 7643 } else { 7644 /** 7645 * Directly go to disconnected state where we 7646 * process the connection events from supplicant 7647 **/ 7648 transitionTo(mDisconnectedState); 7649 } 7650 } else { 7651 loge("Failed to connect config: " + config + " netId: " + netId); 7652 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 7653 WifiManager.ERROR); 7654 break; 7655 } 7656 break; 7657 case WifiManager.SAVE_NETWORK: 7658 mWifiConnectionStatistics.numWifiManagerJoinAttempt++; 7659 // Fall thru 7660 case WifiStateMachine.CMD_AUTO_SAVE_NETWORK: 7661 // Only the current foreground user can modify networks. 7662 if (UserHandle.getUserId(message.sendingUid) != mCurrentUserId) { 7663 loge("Only the current foreground user can modify networks " 7664 + " currentUserId=" + mCurrentUserId 7665 + " sendingUserId=" + UserHandle.getUserId(message.sendingUid)); 7666 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 7667 WifiManager.NOT_AUTHORIZED); 7668 break; 7669 } 7670 7671 lastSavedConfigurationAttempt = null; // Used for debug 7672 config = (WifiConfiguration) message.obj; 7673 if (config == null) { 7674 loge("ERROR: SAVE_NETWORK with null configuration" 7675 + mSupplicantStateTracker.getSupplicantStateName() 7676 + " my state " + getCurrentState().getName()); 7677 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 7678 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 7679 WifiManager.ERROR); 7680 break; 7681 } 7682 lastSavedConfigurationAttempt = new WifiConfiguration(config); 7683 int nid = config.networkId; 7684 logd("SAVE_NETWORK id=" + Integer.toString(nid) 7685 + " config=" + config.SSID 7686 + " nid=" + config.networkId 7687 + " supstate=" + mSupplicantStateTracker.getSupplicantStateName() 7688 + " my state " + getCurrentState().getName()); 7689 7690 // Only record the uid if this is user initiated 7691 boolean checkUid = (message.what == WifiManager.SAVE_NETWORK); 7692 if (checkUid && !recordUidIfAuthorized(config, message.sendingUid, 7693 /* onlyAnnotate */ false)) { 7694 logw("Not authorized to update network " 7695 + " config=" + config.SSID 7696 + " cnid=" + config.networkId 7697 + " uid=" + message.sendingUid); 7698 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 7699 WifiManager.NOT_AUTHORIZED); 7700 break; 7701 } 7702 7703 result = mWifiConfigStore.saveNetwork(config, WifiConfiguration.UNKNOWN_UID); 7704 if (result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID) { 7705 if (mWifiInfo.getNetworkId() == result.getNetworkId()) { 7706 if (result.hasIpChanged()) { 7707 // The currently connection configuration was changed 7708 // We switched from DHCP to static or from static to DHCP, or the 7709 // static IP address has changed. 7710 log("Reconfiguring IP on connection"); 7711 // TODO: clear addresses and disable IPv6 7712 // to simplify obtainingIpState. 7713 transitionTo(mObtainingIpState); 7714 } 7715 if (result.hasProxyChanged()) { 7716 log("Reconfiguring proxy on connection"); 7717 updateLinkProperties(CMD_UPDATE_LINKPROPERTIES); 7718 } 7719 } 7720 replyToMessage(message, WifiManager.SAVE_NETWORK_SUCCEEDED); 7721 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_SAVED, config); 7722 7723 if (VDBG) { 7724 logd("Success save network nid=" 7725 + Integer.toString(result.getNetworkId())); 7726 } 7727 7728 synchronized(mScanResultCache) { 7729 /** 7730 * If the command comes from WifiManager, then 7731 * tell autojoin the user did try to modify and save that network, 7732 * and interpret the SAVE_NETWORK as a request to connect 7733 */ 7734 boolean user = message.what == WifiManager.SAVE_NETWORK; 7735 7736 // Did this connect come from settings 7737 boolean persistConnect = 7738 mWifiConfigStore.checkConfigOverridePermission(message.sendingUid); 7739 7740 if (user) { 7741 mWifiConfigStore.updateLastConnectUid(config, message.sendingUid); 7742 mWifiConfigStore.writeKnownNetworkHistory(); 7743 } 7744 //Fixme, CMD_AUTO_SAVE_NETWORK can be cleaned 7745 mWifiQualifiedNetworkSelector.userSelectNetwork( 7746 result.getNetworkId(), persistConnect); 7747 mWifiQualifiedNetworkSelector.selectQualifiedNetwork(false); 7748 } 7749 } else { 7750 loge("Failed to save network"); 7751 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 7752 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 7753 WifiManager.ERROR); 7754 } 7755 break; 7756 case WifiManager.FORGET_NETWORK: 7757 // Only the current foreground user can modify networks. 7758 if (UserHandle.getUserId(message.sendingUid) != mCurrentUserId) { 7759 loge("Only the current foreground user can modify networks " 7760 + " currentUserId=" + mCurrentUserId 7761 + " sendingUserId=" + UserHandle.getUserId(message.sendingUid)); 7762 replyToMessage(message, WifiManager.FORGET_NETWORK_FAILED, 7763 WifiManager.NOT_AUTHORIZED); 7764 break; 7765 } 7766 7767 // Debug only, remember last configuration that was forgotten 7768 WifiConfiguration toRemove 7769 = mWifiConfigStore.getWifiConfiguration(message.arg1); 7770 if (toRemove == null) { 7771 lastForgetConfigurationAttempt = null; 7772 } else { 7773 lastForgetConfigurationAttempt = new WifiConfiguration(toRemove); 7774 } 7775 // check that the caller owns this network 7776 netId = message.arg1; 7777 7778 if (!mWifiConfigStore.canModifyNetwork(message.sendingUid, netId, 7779 /* onlyAnnotate */ false)) { 7780 logw("Not authorized to forget network " 7781 + " cnid=" + netId 7782 + " uid=" + message.sendingUid); 7783 replyToMessage(message, WifiManager.FORGET_NETWORK_FAILED, 7784 WifiManager.NOT_AUTHORIZED); 7785 break; 7786 } 7787 7788 if (mWifiConfigStore.forgetNetwork(message.arg1)) { 7789 replyToMessage(message, WifiManager.FORGET_NETWORK_SUCCEEDED); 7790 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_FORGOT, 7791 (WifiConfiguration) message.obj); 7792 } else { 7793 loge("Failed to forget network"); 7794 replyToMessage(message, WifiManager.FORGET_NETWORK_FAILED, 7795 WifiManager.ERROR); 7796 } 7797 break; 7798 case WifiManager.START_WPS: 7799 WpsInfo wpsInfo = (WpsInfo) message.obj; 7800 WpsResult wpsResult; 7801 switch (wpsInfo.setup) { 7802 case WpsInfo.PBC: 7803 wpsResult = mWifiConfigStore.startWpsPbc(wpsInfo); 7804 break; 7805 case WpsInfo.KEYPAD: 7806 wpsResult = mWifiConfigStore.startWpsWithPinFromAccessPoint(wpsInfo); 7807 break; 7808 case WpsInfo.DISPLAY: 7809 wpsResult = mWifiConfigStore.startWpsWithPinFromDevice(wpsInfo); 7810 break; 7811 default: 7812 wpsResult = new WpsResult(Status.FAILURE); 7813 loge("Invalid setup for WPS"); 7814 break; 7815 } 7816 mWifiConfigStore.setAndEnableLastSelectedConfiguration 7817 (WifiConfiguration.INVALID_NETWORK_ID); 7818 if (wpsResult.status == Status.SUCCESS) { 7819 replyToMessage(message, WifiManager.START_WPS_SUCCEEDED, wpsResult); 7820 transitionTo(mWpsRunningState); 7821 } else { 7822 loge("Failed to start WPS with config " + wpsInfo.toString()); 7823 replyToMessage(message, WifiManager.WPS_FAILED, WifiManager.ERROR); 7824 } 7825 break; 7826 case WifiMonitor.NETWORK_CONNECTION_EVENT: 7827 if (DBG) log("Network connection established"); 7828 mLastNetworkId = message.arg1; 7829 mLastBssid = (String) message.obj; 7830 7831 mWifiInfo.setBSSID(mLastBssid); 7832 mWifiInfo.setNetworkId(mLastNetworkId); 7833 7834 sendNetworkStateChangeBroadcast(mLastBssid); 7835 transitionTo(mObtainingIpState); 7836 break; 7837 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 7838 // Calling handleNetworkDisconnect here is redundant because we might already 7839 // have called it when leaving L2ConnectedState to go to disconnecting state 7840 // or thru other path 7841 // We should normally check the mWifiInfo or mLastNetworkId so as to check 7842 // if they are valid, and only in this case call handleNEtworkDisconnect, 7843 // TODO: this should be fixed for a L MR release 7844 // The side effect of calling handleNetworkDisconnect twice is that a bunch of 7845 // idempotent commands are executed twice (stopping Dhcp, enabling the SPS mode 7846 // at the chip etc... 7847 if (DBG) log("ConnectModeState: Network connection lost "); 7848 handleNetworkDisconnect(); 7849 transitionTo(mDisconnectedState); 7850 break; 7851 case CMD_PNO_NETWORK_FOUND: 7852 processPnoNetworkFound((ScanResult[])message.obj); 7853 break; 7854 default: 7855 return NOT_HANDLED; 7856 } 7857 return HANDLED; 7858 } 7859 } 7860 7861 private void updateCapabilities(WifiConfiguration config) { 7862 NetworkCapabilities networkCapabilities = new NetworkCapabilities(mDfltNetworkCapabilities); 7863 if (config != null) { 7864 if (config.ephemeral) { 7865 networkCapabilities.removeCapability( 7866 NetworkCapabilities.NET_CAPABILITY_TRUSTED); 7867 } else { 7868 networkCapabilities.addCapability( 7869 NetworkCapabilities.NET_CAPABILITY_TRUSTED); 7870 } 7871 networkCapabilities.setSignalStrength(mWifiInfo.getRssi() != WifiInfo.INVALID_RSSI ? 7872 mWifiInfo.getRssi() : NetworkCapabilities.SIGNAL_STRENGTH_UNSPECIFIED); 7873 if (mWifiConfigStore.isOSUNetwork(config)) { 7874 Log.d(TAG, "Removing internet cap from " + config.SSID); 7875 //networkCapabilities.removeCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 7876 networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_CAPTIVE_PORTAL); 7877 } 7878 } 7879 mNetworkAgent.sendNetworkCapabilities(networkCapabilities); 7880 } 7881 7882 private class WifiNetworkAgent extends NetworkAgent { 7883 public WifiNetworkAgent(Looper l, Context c, String TAG, NetworkInfo ni, 7884 NetworkCapabilities nc, LinkProperties lp, int score) { 7885 super(l, c, TAG, ni, nc, lp, score); 7886 } 7887 protected void unwanted() { 7888 // Ignore if we're not the current networkAgent. 7889 if (this != mNetworkAgent) return; 7890 if (DBG) log("WifiNetworkAgent -> Wifi unwanted score " 7891 + Integer.toString(mWifiInfo.score)); 7892 unwantedNetwork(NETWORK_STATUS_UNWANTED_DISCONNECT); 7893 } 7894 7895 @Override 7896 protected void networkStatus(int status) { 7897 if (this != mNetworkAgent) return; 7898 if (status == NetworkAgent.INVALID_NETWORK) { 7899 if (DBG) log("WifiNetworkAgent -> Wifi networkStatus invalid, score=" 7900 + Integer.toString(mWifiInfo.score)); 7901 unwantedNetwork(NETWORK_STATUS_UNWANTED_VALIDATION_FAILED); 7902 } else if (status == NetworkAgent.VALID_NETWORK) { 7903 if (DBG && mWifiInfo != null) log("WifiNetworkAgent -> Wifi networkStatus valid, score= " 7904 + Integer.toString(mWifiInfo.score)); 7905 doNetworkStatus(status); 7906 } 7907 } 7908 7909 @Override 7910 protected void saveAcceptUnvalidated(boolean accept) { 7911 if (this != mNetworkAgent) return; 7912 WifiStateMachine.this.sendMessage(CMD_ACCEPT_UNVALIDATED, accept ? 1 : 0); 7913 } 7914 7915 @Override 7916 protected void startPacketKeepalive(Message msg) { 7917 WifiStateMachine.this.sendMessage( 7918 CMD_START_IP_PACKET_OFFLOAD, msg.arg1, msg.arg2, msg.obj); 7919 } 7920 7921 @Override 7922 protected void stopPacketKeepalive(Message msg) { 7923 WifiStateMachine.this.sendMessage( 7924 CMD_STOP_IP_PACKET_OFFLOAD, msg.arg1, msg.arg2, msg.obj); 7925 } 7926 7927 @Override 7928 protected void setSignalStrengthThresholds(int[] thresholds) { 7929 // 0. If there are no thresholds, or if the thresholds are invalid, stop RSSI monitoring. 7930 // 1. Tell the hardware to start RSSI monitoring here, possibly adding MIN_VALUE and 7931 // MAX_VALUE at the start/end of the thresholds array if necessary. 7932 // 2. Ensure that when the hardware event fires, we fetch the RSSI from the hardware 7933 // event, call mWifiInfo.setRssi() with it, and call updateCapabilities(), and then 7934 // re-arm the hardware event. This needs to be done on the state machine thread to 7935 // avoid race conditions. The RSSI used to re-arm the event (and perhaps also the one 7936 // sent in the NetworkCapabilities) must be the one received from the hardware event 7937 // received, or we might skip callbacks. 7938 // 3. Ensure that when we disconnect, RSSI monitoring is stopped. 7939 log("Received signal strength thresholds: " + Arrays.toString(thresholds)); 7940 if (thresholds.length == 0) { 7941 WifiStateMachine.this.sendMessage(CMD_STOP_RSSI_MONITORING_OFFLOAD, 7942 mWifiInfo.getRssi()); 7943 return; 7944 } 7945 int [] rssiVals = Arrays.copyOf(thresholds, thresholds.length + 2); 7946 rssiVals[rssiVals.length - 2] = Byte.MIN_VALUE; 7947 rssiVals[rssiVals.length - 1] = Byte.MAX_VALUE; 7948 Arrays.sort(rssiVals); 7949 byte[] rssiRange = new byte[rssiVals.length]; 7950 for (int i = 0; i < rssiVals.length; i++) { 7951 int val = rssiVals[i]; 7952 if (val <= Byte.MAX_VALUE && val >= Byte.MIN_VALUE) { 7953 rssiRange[i] = (byte) val; 7954 } else { 7955 Log.e(TAG, "Illegal value " + val + " for RSSI thresholds: " 7956 + Arrays.toString(rssiVals)); 7957 WifiStateMachine.this.sendMessage(CMD_STOP_RSSI_MONITORING_OFFLOAD, 7958 mWifiInfo.getRssi()); 7959 return; 7960 } 7961 } 7962 // TODO: Do we quash rssi values in this sorted array which are very close? 7963 mRssiRanges = rssiRange; 7964 WifiStateMachine.this.sendMessage(CMD_START_RSSI_MONITORING_OFFLOAD, 7965 mWifiInfo.getRssi()); 7966 } 7967 7968 @Override 7969 protected void preventAutomaticReconnect() { 7970 if (this != mNetworkAgent) return; 7971 unwantedNetwork(NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN); 7972 } 7973 } 7974 7975 void unwantedNetwork(int reason) { 7976 sendMessage(CMD_UNWANTED_NETWORK, reason); 7977 } 7978 7979 void doNetworkStatus(int status) { 7980 sendMessage(CMD_NETWORK_STATUS, status); 7981 } 7982 7983 // rfc4186 & rfc4187: 7984 // create Permanent Identity base on IMSI, 7985 // identity = usernam@realm 7986 // with username = prefix | IMSI 7987 // and realm is derived MMC/MNC tuple according 3GGP spec(TS23.003) 7988 private String buildIdentity(int eapMethod, String imsi, String mccMnc) { 7989 String mcc; 7990 String mnc; 7991 String prefix; 7992 7993 if (imsi == null || imsi.isEmpty()) 7994 return ""; 7995 7996 if (eapMethod == WifiEnterpriseConfig.Eap.SIM) 7997 prefix = "1"; 7998 else if (eapMethod == WifiEnterpriseConfig.Eap.AKA) 7999 prefix = "0"; 8000 else if (eapMethod == WifiEnterpriseConfig.Eap.AKA_PRIME) 8001 prefix = "6"; 8002 else // not a valide EapMethod 8003 return ""; 8004 8005 /* extract mcc & mnc from mccMnc */ 8006 if (mccMnc != null && !mccMnc.isEmpty()) { 8007 mcc = mccMnc.substring(0, 3); 8008 mnc = mccMnc.substring(3); 8009 if (mnc.length() == 2) 8010 mnc = "0" + mnc; 8011 } else { 8012 // extract mcc & mnc from IMSI, assume mnc size is 3 8013 mcc = imsi.substring(0, 3); 8014 mnc = imsi.substring(3, 6); 8015 } 8016 8017 return prefix + imsi + "@wlan.mnc" + mnc + ".mcc" + mcc + ".3gppnetwork.org"; 8018 } 8019 8020 boolean startScanForConfiguration(WifiConfiguration config, boolean restrictChannelList) { 8021 if (config == null) 8022 return false; 8023 8024 // We are still seeing a fairly high power consumption triggered by autojoin scans 8025 // Hence do partial scans only for PSK configuration that are roamable since the 8026 // primary purpose of the partial scans is roaming. 8027 // Full badn scans with exponential backoff for the purpose or extended roaming and 8028 // network switching are performed unconditionally. 8029 ScanDetailCache scanDetailCache = 8030 mWifiConfigStore.getScanDetailCache(config); 8031 if (scanDetailCache == null 8032 || !config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.WPA_PSK) 8033 || scanDetailCache.size() > 6) { 8034 //return true but to not trigger the scan 8035 return true; 8036 } 8037 HashSet<Integer> freqs = mWifiConfigStore.makeChannelList(config, 8038 ONE_HOUR_MILLI, restrictChannelList); 8039 if (freqs != null && freqs.size() != 0) { 8040 //if (DBG) { 8041 logd("starting scan for " + config.configKey() + " with " + freqs); 8042 //} 8043 // Call wifi native to start the scan 8044 if (startScanNative( 8045 WifiNative.SCAN_WITHOUT_CONNECTION_SETUP, freqs)) { 8046 // Only count battery consumption if scan request is accepted 8047 noteScanStart(SCAN_ALARM_SOURCE, null); 8048 messageHandlingStatus = MESSAGE_HANDLING_STATUS_OK; 8049 } else { 8050 // used for debug only, mark scan as failed 8051 messageHandlingStatus = MESSAGE_HANDLING_STATUS_HANDLING_ERROR; 8052 } 8053 return true; 8054 } else { 8055 if (DBG) logd("no channels for " + config.configKey()); 8056 return false; 8057 } 8058 } 8059 8060 void clearCurrentConfigBSSID(String dbg) { 8061 // Clear the bssid in the current config's network block 8062 WifiConfiguration config = getCurrentWifiConfiguration(); 8063 if (config == null) 8064 return; 8065 clearConfigBSSID(config, dbg); 8066 } 8067 void clearConfigBSSID(WifiConfiguration config, String dbg) { 8068 if (config == null) 8069 return; 8070 if (DBG) { 8071 logd(dbg + " " + mTargetRoamBSSID + " config " + config.configKey() 8072 + " config.NetworkSelectionStatus.mNetworkSelectionBSSID " 8073 + config.getNetworkSelectionStatus().getNetworkSelectionBSSID()); 8074 } 8075 config.getNetworkSelectionStatus().setNetworkSelectionBSSID("any"); 8076 if (DBG) { 8077 logd(dbg + " " + config.SSID 8078 + " nid=" + Integer.toString(config.networkId)); 8079 } 8080 mWifiConfigStore.saveWifiConfigBSSID(config); 8081 } 8082 8083 class L2ConnectedState extends State { 8084 @Override 8085 public void enter() { 8086 mRssiPollToken++; 8087 if (mEnableRssiPolling) { 8088 sendMessage(CMD_RSSI_POLL, mRssiPollToken, 0); 8089 } 8090 if (mNetworkAgent != null) { 8091 loge("Have NetworkAgent when entering L2Connected"); 8092 setNetworkDetailedState(DetailedState.DISCONNECTED); 8093 } 8094 setNetworkDetailedState(DetailedState.CONNECTING); 8095 8096 if (!TextUtils.isEmpty(mTcpBufferSizes)) { 8097 mLinkProperties.setTcpBufferSizes(mTcpBufferSizes); 8098 } 8099 mNetworkAgent = new WifiNetworkAgent(getHandler().getLooper(), mContext, 8100 "WifiNetworkAgent", mNetworkInfo, mNetworkCapabilitiesFilter, 8101 mLinkProperties, 60); 8102 8103 // We must clear the config BSSID, as the wifi chipset may decide to roam 8104 // from this point on and having the BSSID specified in the network block would 8105 // cause the roam to faile and the device to disconnect 8106 clearCurrentConfigBSSID("L2ConnectedState"); 8107 8108 try { 8109 mIpReachabilityMonitor = mFacade.makeIpReachabilityMonitor( 8110 mContext, 8111 mInterfaceName, 8112 new IpReachabilityMonitor.Callback() { 8113 @Override 8114 public void notifyLost(InetAddress ip, String logMsg) { 8115 sendMessage(CMD_IP_REACHABILITY_LOST, logMsg); 8116 } 8117 }); 8118 } catch (IllegalArgumentException e) { 8119 Log.wtf("Failed to create IpReachabilityMonitor", e); 8120 } 8121 } 8122 8123 @Override 8124 public void exit() { 8125 if (mIpReachabilityMonitor != null) { 8126 mIpReachabilityMonitor.stop(); 8127 mIpReachabilityMonitor = null; 8128 } 8129 8130 // This is handled by receiving a NETWORK_DISCONNECTION_EVENT in ConnectModeState 8131 // Bug: 15347363 8132 // For paranoia's sake, call handleNetworkDisconnect 8133 // only if BSSID is null or last networkId 8134 // is not invalid. 8135 if (DBG) { 8136 StringBuilder sb = new StringBuilder(); 8137 sb.append("leaving L2ConnectedState state nid=" + Integer.toString(mLastNetworkId)); 8138 if (mLastBssid !=null) { 8139 sb.append(" ").append(mLastBssid); 8140 } 8141 } 8142 if (mLastBssid != null || mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 8143 handleNetworkDisconnect(); 8144 } 8145 } 8146 8147 @Override 8148 public boolean processMessage(Message message) { 8149 logStateAndMessage(message, this); 8150 8151 switch (message.what) { 8152 case DhcpStateMachine.CMD_PRE_DHCP_ACTION: 8153 handlePreDhcpSetup(); 8154 break; 8155 case DhcpStateMachine.CMD_POST_DHCP_ACTION: 8156 handlePostDhcpSetup(); 8157 if (message.arg1 == DhcpStateMachine.DHCP_SUCCESS) { 8158 if (DBG) log("DHCP successful"); 8159 handleIPv4Success((DhcpResults) message.obj, DhcpStateMachine.DHCP_SUCCESS); 8160 // We advance to mConnectedState because handleIPv4Success will call 8161 // updateLinkProperties, which then sends CMD_IP_CONFIGURATION_SUCCESSFUL. 8162 } else if (message.arg1 == DhcpStateMachine.DHCP_FAILURE) { 8163 mWifiLogger.captureBugReportData(WifiLogger.REPORT_REASON_DHCP_FAILURE); 8164 if (DBG) { 8165 int count = -1; 8166 WifiConfiguration config = getCurrentWifiConfiguration(); 8167 if (config != null) { 8168 count = config.getNetworkSelectionStatus().getDisableReasonCounter( 8169 WifiConfiguration.NetworkSelectionStatus 8170 .DISABLED_DHCP_FAILURE); 8171 } 8172 log("DHCP failure count=" + count); 8173 } 8174 mWifiMetrics.endConnectionEvent(0, 8175 WifiMetricsProto.ConnectionEvent.HLF_DHCP); 8176 handleIPv4Failure(DhcpStateMachine.DHCP_FAILURE); 8177 // As above, we transition to mDisconnectingState via updateLinkProperties. 8178 } 8179 break; 8180 case CMD_IP_CONFIGURATION_SUCCESSFUL: 8181 handleSuccessfulIpConfiguration(); 8182 mWifiMetrics.endConnectionEvent(0, WifiMetricsProto.ConnectionEvent.HLF_NONE); 8183 sendConnectedState(); 8184 transitionTo(mConnectedState); 8185 break; 8186 case CMD_IP_CONFIGURATION_LOST: 8187 // Get Link layer stats so that we get fresh tx packet counters. 8188 getWifiLinkLayerStats(true); 8189 handleIpConfigurationLost(); 8190 transitionTo(mDisconnectingState); 8191 break; 8192 case CMD_IP_REACHABILITY_LOST: 8193 if (DBG && message.obj != null) log((String) message.obj); 8194 handleIpReachabilityLost(); 8195 transitionTo(mDisconnectingState); 8196 break; 8197 case CMD_DISCONNECT: 8198 mWifiNative.disconnect(); 8199 transitionTo(mDisconnectingState); 8200 break; 8201 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 8202 if (message.arg1 == 1) { 8203 mWifiNative.disconnect(); 8204 mTemporarilyDisconnectWifi = true; 8205 transitionTo(mDisconnectingState); 8206 } 8207 break; 8208 case CMD_SET_OPERATIONAL_MODE: 8209 if (message.arg1 != CONNECT_MODE) { 8210 sendMessage(CMD_DISCONNECT); 8211 deferMessage(message); 8212 if (message.arg1 == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 8213 noteWifiDisabledWhileAssociated(); 8214 } 8215 } 8216 mWifiConfigStore. 8217 setAndEnableLastSelectedConfiguration( 8218 WifiConfiguration.INVALID_NETWORK_ID); 8219 break; 8220 case CMD_SET_COUNTRY_CODE: 8221 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 8222 deferMessage(message); 8223 break; 8224 case CMD_START_SCAN: 8225 if (DBG) { 8226 logd("CMD_START_SCAN source " + message.arg1 8227 + " txSuccessRate="+String.format( "%.2f", mWifiInfo.txSuccessRate) 8228 + " rxSuccessRate="+String.format( "%.2f", mWifiInfo.rxSuccessRate) 8229 + " targetRoamBSSID=" + mTargetRoamBSSID 8230 + " RSSI=" + mWifiInfo.getRssi()); 8231 } 8232 if (message.arg1 == SCAN_ALARM_SOURCE) { 8233 // Check if the CMD_START_SCAN message is obsolete (and thus if it should 8234 // not be processed) and restart the scan if neede 8235 if (!getEnableAutoJoinWhenAssociated()) { 8236 return HANDLED; 8237 } 8238 boolean shouldScan = mScreenOn; 8239 8240 if (!checkAndRestartDelayedScan(message.arg2, 8241 shouldScan, 8242 mWifiConfigStore.wifiAssociatedShortScanIntervalMilli.get(), 8243 null, null)) { 8244 messageHandlingStatus = MESSAGE_HANDLING_STATUS_OBSOLETE; 8245 logd("L2Connected CMD_START_SCAN source " 8246 + message.arg1 8247 + " " + message.arg2 + ", " + mDelayedScanCounter 8248 + " -> obsolete"); 8249 return HANDLED; 8250 } 8251 if (mP2pConnected.get()) { 8252 logd("L2Connected CMD_START_SCAN source " 8253 + message.arg1 8254 + " " + message.arg2 + ", " + mDelayedScanCounter 8255 + " ignore because P2P is connected"); 8256 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 8257 return HANDLED; 8258 } 8259 boolean tryFullBandScan = false; 8260 boolean restrictChannelList = false; 8261 long now_ms = System.currentTimeMillis(); 8262 if (DBG) { 8263 logd("CMD_START_SCAN with age=" 8264 + Long.toString(now_ms - lastFullBandConnectedTimeMilli) 8265 + " interval=" + fullBandConnectedTimeIntervalMilli 8266 + " maxinterval=" + maxFullBandConnectedTimeIntervalMilli); 8267 } 8268 if (mWifiInfo != null) { 8269 if (mWifiConfigStore.enableFullBandScanWhenAssociated.get() && 8270 (now_ms - lastFullBandConnectedTimeMilli) 8271 > fullBandConnectedTimeIntervalMilli) { 8272 if (DBG) { 8273 logd("CMD_START_SCAN try full band scan age=" 8274 + Long.toString(now_ms - lastFullBandConnectedTimeMilli) 8275 + " interval=" + fullBandConnectedTimeIntervalMilli 8276 + " maxinterval=" + maxFullBandConnectedTimeIntervalMilli); 8277 } 8278 tryFullBandScan = true; 8279 } 8280 8281 if (mWifiInfo.txSuccessRate > 8282 mWifiConfigStore.maxTxPacketForFullScans 8283 || mWifiInfo.rxSuccessRate > 8284 mWifiConfigStore.maxRxPacketForFullScans) { 8285 // Too much traffic at the interface, hence no full band scan 8286 if (DBG) { 8287 logd("CMD_START_SCAN " + 8288 "prevent full band scan due to pkt rate"); 8289 } 8290 tryFullBandScan = false; 8291 } 8292 8293 if (mWifiInfo.txSuccessRate > 8294 mWifiConfigStore.maxTxPacketForPartialScans 8295 || mWifiInfo.rxSuccessRate > 8296 mWifiConfigStore.maxRxPacketForPartialScans) { 8297 // Don't scan if lots of packets are being sent 8298 restrictChannelList = true; 8299 if (mWifiConfigStore.alwaysEnableScansWhileAssociated.get() == 0) { 8300 if (DBG) { 8301 logd("CMD_START_SCAN source " + message.arg1 8302 + " ...and ignore scans" 8303 + " tx=" + String.format("%.2f", mWifiInfo.txSuccessRate) 8304 + " rx=" + String.format("%.2f", mWifiInfo.rxSuccessRate)); 8305 } 8306 messageHandlingStatus = MESSAGE_HANDLING_STATUS_REFUSED; 8307 return HANDLED; 8308 } 8309 } 8310 } 8311 8312 WifiConfiguration currentConfiguration = getCurrentWifiConfiguration(); 8313 if (DBG) { 8314 logd("CMD_START_SCAN full=" + 8315 tryFullBandScan); 8316 } 8317 if (currentConfiguration != null) { 8318 if (fullBandConnectedTimeIntervalMilli 8319 < mWifiConfigStore.wifiAssociatedShortScanIntervalMilli.get()) { 8320 // Sanity 8321 fullBandConnectedTimeIntervalMilli 8322 = mWifiConfigStore.wifiAssociatedShortScanIntervalMilli.get(); 8323 } 8324 if (tryFullBandScan) { 8325 lastFullBandConnectedTimeMilli = now_ms; 8326 if (fullBandConnectedTimeIntervalMilli 8327 < mWifiConfigStore.associatedFullScanMaxIntervalMilli) { 8328 // Increase the interval 8329 fullBandConnectedTimeIntervalMilli 8330 = fullBandConnectedTimeIntervalMilli 8331 * mWifiConfigStore.associatedFullScanBackoff.get() / 8; 8332 8333 if (DBG) { 8334 logd("CMD_START_SCAN bump interval =" 8335 + fullBandConnectedTimeIntervalMilli); 8336 } 8337 } 8338 handleScanRequest( 8339 WifiNative.SCAN_WITHOUT_CONNECTION_SETUP, message); 8340 } else { 8341 if (!startScanForConfiguration( 8342 currentConfiguration, restrictChannelList)) { 8343 if (DBG) { 8344 logd("starting scan, " + 8345 " did not find channels -> full"); 8346 } 8347 lastFullBandConnectedTimeMilli = now_ms; 8348 if (fullBandConnectedTimeIntervalMilli 8349 < mWifiConfigStore.associatedFullScanMaxIntervalMilli) { 8350 // Increase the interval 8351 fullBandConnectedTimeIntervalMilli 8352 = fullBandConnectedTimeIntervalMilli 8353 * mWifiConfigStore.associatedFullScanBackoff.get() / 8; 8354 8355 if (DBG) { 8356 logd("CMD_START_SCAN bump interval =" 8357 + fullBandConnectedTimeIntervalMilli); 8358 } 8359 } 8360 handleScanRequest( 8361 WifiNative.SCAN_WITHOUT_CONNECTION_SETUP, message); 8362 } 8363 } 8364 8365 } else { 8366 logd("CMD_START_SCAN : connected mode and no configuration"); 8367 messageHandlingStatus = MESSAGE_HANDLING_STATUS_HANDLING_ERROR; 8368 } 8369 } else { 8370 // Not scan alarm source 8371 return NOT_HANDLED; 8372 } 8373 break; 8374 /* Ignore connection to same network */ 8375 case WifiManager.CONNECT_NETWORK: 8376 int netId = message.arg1; 8377 if (mWifiInfo.getNetworkId() == netId) { 8378 break; 8379 } 8380 return NOT_HANDLED; 8381 case WifiMonitor.NETWORK_CONNECTION_EVENT: 8382 mWifiInfo.setBSSID((String) message.obj); 8383 mLastNetworkId = message.arg1; 8384 mWifiInfo.setNetworkId(mLastNetworkId); 8385 if(!mLastBssid.equals((String) message.obj)) { 8386 mLastBssid = (String) message.obj; 8387 sendNetworkStateChangeBroadcast(mLastBssid); 8388 } 8389 break; 8390 case CMD_RSSI_POLL: 8391 if (message.arg1 == mRssiPollToken) { 8392 if (mWifiConfigStore.enableChipWakeUpWhenAssociated.get()) { 8393 if (VVDBG) log(" get link layer stats " + mWifiLinkLayerStatsSupported); 8394 WifiLinkLayerStats stats = getWifiLinkLayerStats(VDBG); 8395 if (stats != null) { 8396 // Sanity check the results provided by driver 8397 if (mWifiInfo.getRssi() != WifiInfo.INVALID_RSSI 8398 && (stats.rssi_mgmt == 0 8399 || stats.beacon_rx == 0)) { 8400 stats = null; 8401 } 8402 } 8403 // Get Info and continue polling 8404 fetchRssiLinkSpeedAndFrequencyNative(); 8405 calculateWifiScore(stats); 8406 } 8407 sendMessageDelayed(obtainMessage(CMD_RSSI_POLL, 8408 mRssiPollToken, 0), POLL_RSSI_INTERVAL_MSECS); 8409 if (DBG) sendRssiChangeBroadcast(mWifiInfo.getRssi()); 8410 } else { 8411 // Polling has completed 8412 } 8413 break; 8414 case CMD_ENABLE_RSSI_POLL: 8415 cleanWifiScore(); 8416 if (mWifiConfigStore.enableRssiPollWhenAssociated.get()) { 8417 mEnableRssiPolling = (message.arg1 == 1); 8418 } else { 8419 mEnableRssiPolling = false; 8420 } 8421 mRssiPollToken++; 8422 if (mEnableRssiPolling) { 8423 // First poll 8424 fetchRssiLinkSpeedAndFrequencyNative(); 8425 sendMessageDelayed(obtainMessage(CMD_RSSI_POLL, 8426 mRssiPollToken, 0), POLL_RSSI_INTERVAL_MSECS); 8427 } 8428 break; 8429 case WifiManager.RSSI_PKTCNT_FETCH: 8430 RssiPacketCountInfo info = new RssiPacketCountInfo(); 8431 fetchRssiLinkSpeedAndFrequencyNative(); 8432 info.rssi = mWifiInfo.getRssi(); 8433 fetchPktcntNative(info); 8434 replyToMessage(message, WifiManager.RSSI_PKTCNT_FETCH_SUCCEEDED, info); 8435 break; 8436 case CMD_DELAYED_NETWORK_DISCONNECT: 8437 if (!linkDebouncing && mWifiConfigStore.enableLinkDebouncing) { 8438 8439 // Ignore if we are not debouncing 8440 logd("CMD_DELAYED_NETWORK_DISCONNECT and not debouncing - ignore " 8441 + message.arg1); 8442 return HANDLED; 8443 } else { 8444 logd("CMD_DELAYED_NETWORK_DISCONNECT and debouncing - disconnect " 8445 + message.arg1); 8446 8447 linkDebouncing = false; 8448 // If we are still debouncing while this message comes, 8449 // it means we were not able to reconnect within the alloted time 8450 // = LINK_FLAPPING_DEBOUNCE_MSEC 8451 // and thus, trigger a real disconnect 8452 handleNetworkDisconnect(); 8453 transitionTo(mDisconnectedState); 8454 } 8455 break; 8456 case CMD_ASSOCIATED_BSSID: 8457 if ((String) message.obj == null) { 8458 logw("Associated command w/o BSSID"); 8459 break; 8460 } 8461 mLastBssid = (String) message.obj; 8462 if (mLastBssid != null 8463 && (mWifiInfo.getBSSID() == null 8464 || !mLastBssid.equals(mWifiInfo.getBSSID()))) { 8465 mWifiInfo.setBSSID((String) message.obj); 8466 sendNetworkStateChangeBroadcast(mLastBssid); 8467 } 8468 break; 8469 case CMD_START_RSSI_MONITORING_OFFLOAD: 8470 case CMD_RSSI_THRESHOLD_BREACH: 8471 byte currRssi = (byte) message.arg1; 8472 processRssiThreshold(currRssi, message.what); 8473 break; 8474 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 8475 stopRssiMonitoringOffload(); 8476 break; 8477 case CMD_RESET_SIM_NETWORKS: 8478 if (mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 8479 WifiConfiguration config = 8480 mWifiConfigStore.getWifiConfiguration(mLastNetworkId); 8481 if (mWifiConfigStore.isSimConfig(config)) { 8482 mWifiNative.disconnect(); 8483 transitionTo(mDisconnectingState); 8484 } 8485 } 8486 /* allow parent state to reset data for other networks */ 8487 return NOT_HANDLED; 8488 case CMD_USER_SWITCH: 8489 mCurrentUserId = message.arg1; 8490 mWifiConfigStore.handleUserSwitch(); 8491 break; 8492 default: 8493 return NOT_HANDLED; 8494 } 8495 8496 return HANDLED; 8497 } 8498 } 8499 8500 class ObtainingIpState extends State { 8501 @Override 8502 public void enter() { 8503 if (DBG) { 8504 String key = ""; 8505 if (getCurrentWifiConfiguration() != null) { 8506 key = getCurrentWifiConfiguration().configKey(); 8507 } 8508 log("enter ObtainingIpState netId=" + Integer.toString(mLastNetworkId) 8509 + " " + key + " " 8510 + " roam=" + mAutoRoaming 8511 + " static=" + mWifiConfigStore.isUsingStaticIp(mLastNetworkId) 8512 + " watchdog= " + obtainingIpWatchdogCount); 8513 } 8514 8515 // Reset link Debouncing, indicating we have successfully re-connected to the AP 8516 // We might still be roaming 8517 linkDebouncing = false; 8518 8519 // Send event to CM & network change broadcast 8520 setNetworkDetailedState(DetailedState.OBTAINING_IPADDR); 8521 8522 // We must clear the config BSSID, as the wifi chipset may decide to roam 8523 // from this point on and having the BSSID specified in the network block would 8524 // cause the roam to faile and the device to disconnect 8525 clearCurrentConfigBSSID("ObtainingIpAddress"); 8526 8527 try { 8528 mNwService.enableIpv6(mInterfaceName); 8529 } catch (RemoteException re) { 8530 loge("Failed to enable IPv6: " + re); 8531 } catch (IllegalStateException e) { 8532 loge("Failed to enable IPv6: " + e); 8533 } 8534 8535 if (!mWifiConfigStore.isUsingStaticIp(mLastNetworkId)) { 8536 if (isRoaming()) { 8537 renewDhcp(); 8538 } else { 8539 // Remove any IP address on the interface in case we're switching from static 8540 // IP configuration to DHCP. This is safe because if we get here when not 8541 // roaming, we don't have a usable address. 8542 clearIPv4Address(mInterfaceName); 8543 startDhcp(); 8544 } 8545 obtainingIpWatchdogCount++; 8546 logd("Start Dhcp Watchdog " + obtainingIpWatchdogCount); 8547 // Get Link layer stats so as we get fresh tx packet counters 8548 getWifiLinkLayerStats(true); 8549 sendMessageDelayed(obtainMessage(CMD_OBTAINING_IP_ADDRESS_WATCHDOG_TIMER, 8550 obtainingIpWatchdogCount, 0), OBTAINING_IP_ADDRESS_GUARD_TIMER_MSEC); 8551 } else { 8552 // stop any running dhcp before assigning static IP 8553 stopDhcp(); 8554 StaticIpConfiguration config = mWifiConfigStore.getStaticIpConfiguration( 8555 mLastNetworkId); 8556 if (config.ipAddress == null) { 8557 logd("Static IP lacks address"); 8558 sendMessage(CMD_STATIC_IP_FAILURE); 8559 } else { 8560 InterfaceConfiguration ifcg = new InterfaceConfiguration(); 8561 ifcg.setLinkAddress(config.ipAddress); 8562 ifcg.setInterfaceUp(); 8563 try { 8564 mNwService.setInterfaceConfig(mInterfaceName, ifcg); 8565 if (DBG) log("Static IP configuration succeeded"); 8566 DhcpResults dhcpResults = new DhcpResults(config); 8567 sendMessage(CMD_STATIC_IP_SUCCESS, dhcpResults); 8568 } catch (RemoteException re) { 8569 loge("Static IP configuration failed: " + re); 8570 sendMessage(CMD_STATIC_IP_FAILURE); 8571 } catch (IllegalStateException e) { 8572 loge("Static IP configuration failed: " + e); 8573 sendMessage(CMD_STATIC_IP_FAILURE); 8574 } 8575 } 8576 } 8577 } 8578 @Override 8579 public boolean processMessage(Message message) { 8580 logStateAndMessage(message, this); 8581 8582 switch(message.what) { 8583 case CMD_STATIC_IP_SUCCESS: 8584 handleIPv4Success((DhcpResults) message.obj, CMD_STATIC_IP_SUCCESS); 8585 break; 8586 case CMD_STATIC_IP_FAILURE: 8587 handleIPv4Failure(CMD_STATIC_IP_FAILURE); 8588 break; 8589 case CMD_AUTO_CONNECT: 8590 case CMD_AUTO_ROAM: 8591 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 8592 break; 8593 case WifiManager.SAVE_NETWORK: 8594 case WifiStateMachine.CMD_AUTO_SAVE_NETWORK: 8595 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 8596 deferMessage(message); 8597 break; 8598 /* Defer any power mode changes since we must keep active power mode at DHCP */ 8599 case CMD_SET_HIGH_PERF_MODE: 8600 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 8601 deferMessage(message); 8602 break; 8603 /* Defer scan request since we should not switch to other channels at DHCP */ 8604 case CMD_START_SCAN: 8605 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 8606 deferMessage(message); 8607 break; 8608 case CMD_OBTAINING_IP_ADDRESS_WATCHDOG_TIMER: 8609 if (message.arg1 == obtainingIpWatchdogCount) { 8610 logd("ObtainingIpAddress: Watchdog Triggered, count=" 8611 + obtainingIpWatchdogCount); 8612 handleIpConfigurationLost(); 8613 transitionTo(mDisconnectingState); 8614 break; 8615 } 8616 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 8617 break; 8618 default: 8619 return NOT_HANDLED; 8620 } 8621 return HANDLED; 8622 } 8623 } 8624 8625 private void sendConnectedState() { 8626 // If this network was explicitly selected by the user, evaluate whether to call 8627 // explicitlySelected() so the system can treat it appropriately. 8628 WifiConfiguration config = getCurrentWifiConfiguration(); 8629 if (mWifiConfigStore.isLastSelectedConfiguration(config)) { 8630 boolean prompt = mWifiConfigStore.checkConfigOverridePermission(config.lastConnectUid); 8631 if (DBG) { 8632 log("Network selected by UID " + config.lastConnectUid + " prompt=" + prompt); 8633 } 8634 if (prompt) { 8635 // Selected by the user via Settings or QuickSettings. If this network has Internet 8636 // access, switch to it. Otherwise, switch to it only if the user confirms that they 8637 // really want to switch, or has already confirmed and selected "Don't ask again". 8638 if (DBG) { 8639 log("explictlySelected acceptUnvalidated=" + config.noInternetAccessExpected); 8640 } 8641 mNetworkAgent.explicitlySelected(config.noInternetAccessExpected); 8642 } 8643 } 8644 8645 setNetworkDetailedState(DetailedState.CONNECTED); 8646 mWifiConfigStore.updateStatus(mLastNetworkId, DetailedState.CONNECTED); 8647 sendNetworkStateChangeBroadcast(mLastBssid); 8648 } 8649 8650 class RoamingState extends State { 8651 boolean mAssociated; 8652 @Override 8653 public void enter() { 8654 if (DBG) { 8655 log("RoamingState Enter" 8656 + " mScreenOn=" + mScreenOn ); 8657 } 8658 setScanAlarm(false); 8659 8660 // Make sure we disconnect if roaming fails 8661 roamWatchdogCount++; 8662 logd("Start Roam Watchdog " + roamWatchdogCount); 8663 sendMessageDelayed(obtainMessage(CMD_ROAM_WATCHDOG_TIMER, 8664 roamWatchdogCount, 0), ROAM_GUARD_TIMER_MSEC); 8665 mAssociated = false; 8666 } 8667 @Override 8668 public boolean processMessage(Message message) { 8669 logStateAndMessage(message, this); 8670 WifiConfiguration config; 8671 switch (message.what) { 8672 case CMD_IP_CONFIGURATION_LOST: 8673 config = getCurrentWifiConfiguration(); 8674 if (config != null) { 8675 mWifiLogger.captureBugReportData(WifiLogger.REPORT_REASON_AUTOROAM_FAILURE); 8676 mWifiConfigStore.noteRoamingFailure(config, 8677 WifiConfiguration.ROAMING_FAILURE_IP_CONFIG); 8678 } 8679 return NOT_HANDLED; 8680 case CMD_UNWANTED_NETWORK: 8681 if (DBG) log("Roaming and CS doesnt want the network -> ignore"); 8682 return HANDLED; 8683 case CMD_SET_OPERATIONAL_MODE: 8684 if (message.arg1 != CONNECT_MODE) { 8685 deferMessage(message); 8686 } 8687 break; 8688 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 8689 /** 8690 * If we get a SUPPLICANT_STATE_CHANGE_EVENT indicating a DISCONNECT 8691 * before NETWORK_DISCONNECTION_EVENT 8692 * And there is an associated BSSID corresponding to our target BSSID, then 8693 * we have missed the network disconnection, transition to mDisconnectedState 8694 * and handle the rest of the events there. 8695 */ 8696 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 8697 if (stateChangeResult.state == SupplicantState.DISCONNECTED 8698 || stateChangeResult.state == SupplicantState.INACTIVE 8699 || stateChangeResult.state == SupplicantState.INTERFACE_DISABLED) { 8700 if (DBG) { 8701 log("STATE_CHANGE_EVENT in roaming state " 8702 + stateChangeResult.toString() ); 8703 } 8704 if (stateChangeResult.BSSID != null 8705 && stateChangeResult.BSSID.equals(mTargetRoamBSSID)) { 8706 handleNetworkDisconnect(); 8707 transitionTo(mDisconnectedState); 8708 } 8709 } 8710 if (stateChangeResult.state == SupplicantState.ASSOCIATED) { 8711 // We completed the layer2 roaming part 8712 mAssociated = true; 8713 if (stateChangeResult.BSSID != null) { 8714 mTargetRoamBSSID = (String) stateChangeResult.BSSID; 8715 } 8716 } 8717 break; 8718 case CMD_ROAM_WATCHDOG_TIMER: 8719 if (roamWatchdogCount == message.arg1) { 8720 if (DBG) log("roaming watchdog! -> disconnect"); 8721 mRoamFailCount++; 8722 handleNetworkDisconnect(); 8723 mWifiNative.disconnect(); 8724 transitionTo(mDisconnectedState); 8725 } 8726 break; 8727 case WifiMonitor.NETWORK_CONNECTION_EVENT: 8728 if (mAssociated) { 8729 if (DBG) log("roaming and Network connection established"); 8730 mLastNetworkId = message.arg1; 8731 mLastBssid = (String) message.obj; 8732 mWifiInfo.setBSSID(mLastBssid); 8733 mWifiInfo.setNetworkId(mLastNetworkId); 8734 mWifiConfigStore.handleBSSIDBlackList(mLastNetworkId, mLastBssid, true); 8735 sendNetworkStateChangeBroadcast(mLastBssid); 8736 transitionTo(mObtainingIpState); 8737 } else { 8738 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 8739 } 8740 break; 8741 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 8742 // Throw away but only if it corresponds to the network we're roaming to 8743 String bssid = (String)message.obj; 8744 if (true) { 8745 String target = ""; 8746 if (mTargetRoamBSSID != null) target = mTargetRoamBSSID; 8747 log("NETWORK_DISCONNECTION_EVENT in roaming state" 8748 + " BSSID=" + bssid 8749 + " target=" + target); 8750 } 8751 if (bssid != null && bssid.equals(mTargetRoamBSSID)) { 8752 handleNetworkDisconnect(); 8753 transitionTo(mDisconnectedState); 8754 } 8755 break; 8756 case WifiMonitor.SSID_TEMP_DISABLED: 8757 // Auth error while roaming 8758 logd("SSID_TEMP_DISABLED nid=" + Integer.toString(mLastNetworkId) 8759 + " id=" + Integer.toString(message.arg1) 8760 + " isRoaming=" + isRoaming() 8761 + " roam=" + mAutoRoaming); 8762 if (message.arg1 == mLastNetworkId) { 8763 config = getCurrentWifiConfiguration(); 8764 if (config != null) { 8765 mWifiLogger.captureBugReportData( 8766 WifiLogger.REPORT_REASON_AUTOROAM_FAILURE); 8767 mWifiConfigStore.noteRoamingFailure(config, 8768 WifiConfiguration.ROAMING_FAILURE_AUTH_FAILURE); 8769 } 8770 handleNetworkDisconnect(); 8771 transitionTo(mDisconnectingState); 8772 } 8773 return NOT_HANDLED; 8774 case CMD_START_SCAN: 8775 deferMessage(message); 8776 break; 8777 default: 8778 return NOT_HANDLED; 8779 } 8780 return HANDLED; 8781 } 8782 8783 @Override 8784 public void exit() { 8785 logd("WifiStateMachine: Leaving Roaming state"); 8786 } 8787 } 8788 8789 class ConnectedState extends State { 8790 @Override 8791 public void enter() { 8792 String address; 8793 updateDefaultRouteMacAddress(1000); 8794 if (DBG) { 8795 log("Enter ConnectedState " 8796 + " mScreenOn=" + mScreenOn 8797 + " scanperiod=" 8798 + Integer.toString(mWifiConfigStore.wifiAssociatedShortScanIntervalMilli.get()) 8799 + " useGscan=" + mHalBasedPnoDriverSupported + "/" 8800 + mWifiConfigStore.enableHalBasedPno.get() 8801 + " mHalBasedPnoEnableInDevSettings " + mHalBasedPnoEnableInDevSettings); 8802 } 8803 if (mScreenOn 8804 && getEnableAutoJoinWhenAssociated()) { 8805 if (useHalBasedAutoJoinOffload()) { 8806 startGScanConnectedModeOffload("connectedEnter"); 8807 } else { 8808 // restart scan alarm 8809 startDelayedScan(mWifiConfigStore.wifiAssociatedShortScanIntervalMilli.get(), 8810 null, null); 8811 } 8812 } 8813 registerConnected(); 8814 lastConnectAttemptTimestamp = 0; 8815 targetWificonfiguration = null; 8816 // Paranoia 8817 linkDebouncing = false; 8818 8819 // Not roaming anymore 8820 mAutoRoaming = false; 8821 8822 if (testNetworkDisconnect) { 8823 testNetworkDisconnectCounter++; 8824 logd("ConnectedState Enter start disconnect test " + 8825 testNetworkDisconnectCounter); 8826 sendMessageDelayed(obtainMessage(CMD_TEST_NETWORK_DISCONNECT, 8827 testNetworkDisconnectCounter, 0), 15000); 8828 } 8829 8830 // Reenable all networks, allow for hidden networks to be scanned 8831 mWifiConfigStore.enableAllNetworks(); 8832 8833 mLastDriverRoamAttempt = 0; 8834 mTargetNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 8835 //startLazyRoam(); 8836 } 8837 @Override 8838 public boolean processMessage(Message message) { 8839 WifiConfiguration config = null; 8840 logStateAndMessage(message, this); 8841 8842 switch (message.what) { 8843 case CMD_RESTART_AUTOJOIN_OFFLOAD: 8844 if ( (int)message.arg2 < mRestartAutoJoinOffloadCounter ) { 8845 messageHandlingStatus = MESSAGE_HANDLING_STATUS_OBSOLETE; 8846 return HANDLED; 8847 } 8848 /* If we are still in Disconnected state after having discovered a valid 8849 * network this means autojoin didnt managed to associate to the network, 8850 * then restart PNO so as we will try associating to it again. 8851 */ 8852 if (useHalBasedAutoJoinOffload()) { 8853 if (mGScanStartTimeMilli == 0) { 8854 // If offload is not started, then start it... 8855 startGScanConnectedModeOffload("connectedRestart"); 8856 } else { 8857 // If offload is already started, then check if we need to increase 8858 // the scan period and restart the Gscan 8859 long now = System.currentTimeMillis(); 8860 if (mGScanStartTimeMilli != 0 && now > mGScanStartTimeMilli 8861 && ((now - mGScanStartTimeMilli) 8862 > DISCONNECTED_SHORT_SCANS_DURATION_MILLI) 8863 && (mGScanPeriodMilli 8864 < mWifiConfigStore.wifiDisconnectedLongScanIntervalMilli.get())) 8865 { 8866 startConnectedGScan("Connected restart gscan"); 8867 } 8868 } 8869 } 8870 break; 8871 case CMD_UPDATE_ASSOCIATED_SCAN_PERMISSION: 8872 updateAssociatedScanPermission(); 8873 break; 8874 case CMD_UNWANTED_NETWORK: 8875 if (message.arg1 == NETWORK_STATUS_UNWANTED_DISCONNECT) { 8876 mWifiConfigStore.handleBadNetworkDisconnectReport(mLastNetworkId, mWifiInfo); 8877 mWifiNative.disconnect(); 8878 transitionTo(mDisconnectingState); 8879 } else if (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN || 8880 message.arg1 == NETWORK_STATUS_UNWANTED_VALIDATION_FAILED) { 8881 Log.d(TAG, (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN 8882 ? "NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN" 8883 : "NETWORK_STATUS_UNWANTED_VALIDATION_FAILED")); 8884 config = getCurrentWifiConfiguration(); 8885 if (config != null) { 8886 // Disable autojoin 8887 if (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN) { 8888 config.validatedInternetAccess = false; 8889 // Clear last-selected status, as being last-selected also avoids 8890 // disabling auto-join. 8891 if (mWifiConfigStore.isLastSelectedConfiguration(config)) { 8892 mWifiConfigStore.setAndEnableLastSelectedConfiguration( 8893 WifiConfiguration.INVALID_NETWORK_ID); 8894 } 8895 mWifiConfigStore.updateNetworkSelectionStatus(config, 8896 WifiConfiguration.NetworkSelectionStatus 8897 .DISABLED_NO_INTERNET); 8898 } 8899 config.numNoInternetAccessReports += 1; 8900 mWifiConfigStore.writeKnownNetworkHistory(); 8901 } 8902 } 8903 return HANDLED; 8904 case CMD_NETWORK_STATUS: 8905 if (message.arg1 == NetworkAgent.VALID_NETWORK) { 8906 config = getCurrentWifiConfiguration(); 8907 if (config != null) { 8908 // re-enable autojoin 8909 config.numNoInternetAccessReports = 0; 8910 config.validatedInternetAccess = true; 8911 mWifiConfigStore.writeKnownNetworkHistory(); 8912 } 8913 } 8914 return HANDLED; 8915 case CMD_ACCEPT_UNVALIDATED: 8916 boolean accept = (message.arg1 != 0); 8917 config = getCurrentWifiConfiguration(); 8918 if (config != null) { 8919 config.noInternetAccessExpected = accept; 8920 } 8921 return HANDLED; 8922 case CMD_TEST_NETWORK_DISCONNECT: 8923 // Force a disconnect 8924 if (message.arg1 == testNetworkDisconnectCounter) { 8925 mWifiNative.disconnect(); 8926 } 8927 break; 8928 case CMD_ASSOCIATED_BSSID: 8929 // ASSOCIATING to a new BSSID while already connected, indicates 8930 // that driver is roaming 8931 mLastDriverRoamAttempt = System.currentTimeMillis(); 8932 String toBSSID = (String)message.obj; 8933 if (toBSSID != null && !toBSSID.equals(mWifiInfo.getBSSID())) { 8934 mWifiConfigStore.driverRoamedFrom(mWifiInfo); 8935 } 8936 return NOT_HANDLED; 8937 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 8938 long lastRoam = 0; 8939 if (mLastDriverRoamAttempt != 0) { 8940 // Calculate time since last driver roam attempt 8941 lastRoam = System.currentTimeMillis() - mLastDriverRoamAttempt; 8942 mLastDriverRoamAttempt = 0; 8943 } 8944 if (unexpectedDisconnectedReason(message.arg2)) { 8945 mWifiLogger.captureBugReportData( 8946 WifiLogger.REPORT_REASON_UNEXPECTED_DISCONNECT); 8947 } 8948 config = getCurrentWifiConfiguration(); 8949 if (mScreenOn 8950 && !linkDebouncing 8951 && config != null 8952 && config.getNetworkSelectionStatus().isNetworkEnabled() 8953 && !mWifiConfigStore.isLastSelectedConfiguration(config) 8954 && (message.arg2 != 3 /* reason cannot be 3, i.e. locally generated */ 8955 || (lastRoam > 0 && lastRoam < 2000) /* unless driver is roaming */) 8956 && ((ScanResult.is24GHz(mWifiInfo.getFrequency()) 8957 && mWifiInfo.getRssi() > 8958 WifiQualifiedNetworkSelector.QUALIFIED_RSSI_24G_BAND) 8959 || (ScanResult.is5GHz(mWifiInfo.getFrequency()) 8960 && mWifiInfo.getRssi() > 8961 mWifiConfigStore.thresholdQualifiedRssi5.get()))) { 8962 // Start de-bouncing the L2 disconnection: 8963 // this L2 disconnection might be spurious. 8964 // Hence we allow 7 seconds for the state machine to try 8965 // to reconnect, go thru the 8966 // roaming cycle and enter Obtaining IP address 8967 // before signalling the disconnect to ConnectivityService and L3 8968 startScanForConfiguration(getCurrentWifiConfiguration(), false); 8969 linkDebouncing = true; 8970 8971 sendMessageDelayed(obtainMessage(CMD_DELAYED_NETWORK_DISCONNECT, 8972 0, mLastNetworkId), LINK_FLAPPING_DEBOUNCE_MSEC); 8973 if (DBG) { 8974 log("NETWORK_DISCONNECTION_EVENT in connected state" 8975 + " BSSID=" + mWifiInfo.getBSSID() 8976 + " RSSI=" + mWifiInfo.getRssi() 8977 + " freq=" + mWifiInfo.getFrequency() 8978 + " reason=" + message.arg2 8979 + " -> debounce"); 8980 } 8981 return HANDLED; 8982 } else { 8983 if (DBG) { 8984 log("NETWORK_DISCONNECTION_EVENT in connected state" 8985 + " BSSID=" + mWifiInfo.getBSSID() 8986 + " RSSI=" + mWifiInfo.getRssi() 8987 + " freq=" + mWifiInfo.getFrequency() 8988 + " was debouncing=" + linkDebouncing 8989 + " reason=" + message.arg2 8990 + " Network Selection Status=" + (config == null ? "Unavailable" 8991 : config.getNetworkSelectionStatus().getNetworkStatusString())); 8992 } 8993 } 8994 break; 8995 case CMD_AUTO_ROAM: 8996 // Clear the driver roam indication since we are attempting a framework roam 8997 mLastDriverRoamAttempt = 0; 8998 8999 /* Connect command coming from auto-join */ 9000 ScanResult candidate = (ScanResult)message.obj; 9001 String bssid = "any"; 9002 if (candidate != null) { 9003 bssid = candidate.BSSID; 9004 } 9005 int netId = mLastNetworkId; 9006 config = getCurrentWifiConfiguration(); 9007 9008 9009 if (config == null) { 9010 loge("AUTO_ROAM and no config, bail out..."); 9011 break; 9012 } 9013 9014 logd("CMD_AUTO_ROAM sup state " 9015 + mSupplicantStateTracker.getSupplicantStateName() 9016 + " my state " + getCurrentState().getName() 9017 + " nid=" + Integer.toString(netId) 9018 + " config " + config.configKey() 9019 + " roam=" + Integer.toString(message.arg2) 9020 + " to " + bssid 9021 + " targetRoamBSSID " + mTargetRoamBSSID); 9022 9023 setTargetBssid(config, bssid); 9024 mTargetNetworkId = netId; 9025 // Make sure the network is enabled, since supplicant will not re-enable it 9026 mWifiConfigStore.enableNetworkWithoutBroadcast(netId, false); 9027 9028 if (deferForUserInput(message, netId, false)) { 9029 break; 9030 } else if (mWifiConfigStore.getWifiConfiguration(netId).userApproved == 9031 WifiConfiguration.USER_BANNED) { 9032 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 9033 WifiManager.NOT_AUTHORIZED); 9034 break; 9035 } 9036 9037 boolean ret = false; 9038 if (mLastNetworkId != netId) { 9039 if (mWifiConfigStore.selectNetwork(config, /* updatePriorities = */ false, 9040 WifiConfiguration.UNKNOWN_UID) && mWifiNative.reconnect()) { 9041 ret = true; 9042 } 9043 } else { 9044 ret = mWifiNative.reassociate(); 9045 } 9046 if (ret) { 9047 lastConnectAttemptTimestamp = System.currentTimeMillis(); 9048 mWifiMetrics.startConnectionEvent(mWifiInfo); 9049 targetWificonfiguration = mWifiConfigStore.getWifiConfiguration(netId); 9050 9051 // replyToMessage(message, WifiManager.CONNECT_NETWORK_SUCCEEDED); 9052 mAutoRoaming = true; 9053 transitionTo(mRoamingState); 9054 9055 } else { 9056 loge("Failed to connect config: " + config + " netId: " + netId); 9057 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 9058 WifiManager.ERROR); 9059 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 9060 break; 9061 } 9062 break; 9063 case CMD_START_IP_PACKET_OFFLOAD: { 9064 int slot = message.arg1; 9065 int intervalSeconds = message.arg2; 9066 KeepalivePacketData pkt = (KeepalivePacketData) message.obj; 9067 byte[] dstMac; 9068 try { 9069 InetAddress gateway = RouteInfo.selectBestRoute( 9070 mLinkProperties.getRoutes(), pkt.dstAddress).getGateway(); 9071 String dstMacStr = macAddressFromRoute(gateway.getHostAddress()); 9072 dstMac = macAddressFromString(dstMacStr); 9073 } catch (NullPointerException|IllegalArgumentException e) { 9074 loge("Can't find MAC address for next hop to " + pkt.dstAddress); 9075 mNetworkAgent.onPacketKeepaliveEvent(slot, 9076 ConnectivityManager.PacketKeepalive.ERROR_INVALID_IP_ADDRESS); 9077 break; 9078 } 9079 pkt.dstMac = dstMac; 9080 int result = startWifiIPPacketOffload(slot, pkt, intervalSeconds); 9081 mNetworkAgent.onPacketKeepaliveEvent(slot, result); 9082 break; 9083 } 9084 default: 9085 return NOT_HANDLED; 9086 } 9087 return HANDLED; 9088 } 9089 9090 @Override 9091 public void exit() { 9092 logd("WifiStateMachine: Leaving Connected state"); 9093 setScanAlarm(false); 9094 mLastDriverRoamAttempt = 0; 9095 9096 stopLazyRoam(); 9097 9098 mWhiteListedSsids = null; 9099 } 9100 } 9101 9102 class DisconnectingState extends State { 9103 9104 @Override 9105 public void enter() { 9106 9107 if (PDBG) { 9108 logd(" Enter DisconnectingState State scan interval " 9109 + mWifiConfigStore.wifiDisconnectedShortScanIntervalMilli.get() 9110 + " mLegacyPnoEnabled= " + mLegacyPnoEnabled 9111 + " screenOn=" + mScreenOn); 9112 } 9113 9114 // Make sure we disconnect: we enter this state prior to connecting to a new 9115 // network, waiting for either a DISCONNECT event or a SUPPLICANT_STATE_CHANGE 9116 // event which in this case will be indicating that supplicant started to associate. 9117 // In some cases supplicant doesn't ignore the connect requests (it might not 9118 // find the target SSID in its cache), 9119 // Therefore we end up stuck that state, hence the need for the watchdog. 9120 disconnectingWatchdogCount++; 9121 logd("Start Disconnecting Watchdog " + disconnectingWatchdogCount); 9122 sendMessageDelayed(obtainMessage(CMD_DISCONNECTING_WATCHDOG_TIMER, 9123 disconnectingWatchdogCount, 0), DISCONNECTING_GUARD_TIMER_MSEC); 9124 } 9125 9126 @Override 9127 public boolean processMessage(Message message) { 9128 logStateAndMessage(message, this); 9129 switch (message.what) { 9130 case CMD_SET_OPERATIONAL_MODE: 9131 if (message.arg1 != CONNECT_MODE) { 9132 deferMessage(message); 9133 } 9134 break; 9135 case CMD_START_SCAN: 9136 deferMessage(message); 9137 return HANDLED; 9138 case CMD_DISCONNECTING_WATCHDOG_TIMER: 9139 if (disconnectingWatchdogCount == message.arg1) { 9140 if (DBG) log("disconnecting watchdog! -> disconnect"); 9141 handleNetworkDisconnect(); 9142 transitionTo(mDisconnectedState); 9143 } 9144 break; 9145 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 9146 /** 9147 * If we get a SUPPLICANT_STATE_CHANGE_EVENT before NETWORK_DISCONNECTION_EVENT 9148 * we have missed the network disconnection, transition to mDisconnectedState 9149 * and handle the rest of the events there 9150 */ 9151 deferMessage(message); 9152 handleNetworkDisconnect(); 9153 transitionTo(mDisconnectedState); 9154 break; 9155 default: 9156 return NOT_HANDLED; 9157 } 9158 return HANDLED; 9159 } 9160 } 9161 9162 class DisconnectedState extends State { 9163 @Override 9164 public void enter() { 9165 // We dont scan frequently if this is a temporary disconnect 9166 // due to p2p 9167 if (mTemporarilyDisconnectWifi) { 9168 mWifiP2pChannel.sendMessage(WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE); 9169 return; 9170 } 9171 9172 if (PDBG) { 9173 logd(" Enter DisconnectedState scan interval " 9174 + mWifiConfigStore.wifiDisconnectedShortScanIntervalMilli.get() 9175 + " mLegacyPnoEnabled= " + mLegacyPnoEnabled 9176 + " screenOn=" + mScreenOn 9177 + " useGscan=" + mHalBasedPnoDriverSupported + "/" 9178 + mWifiConfigStore.enableHalBasedPno.get()); 9179 } 9180 9181 /** clear the roaming state, if we were roaming, we failed */ 9182 mAutoRoaming = false; 9183 9184 if (useHalBasedAutoJoinOffload()) { 9185 startGScanDisconnectedModeOffload("disconnectedEnter"); 9186 } else { 9187 if (mScreenOn) { 9188 /** 9189 * screen lit and => start scan immediately 9190 */ 9191 startScan(UNKNOWN_SCAN_SOURCE, 0, null, null); 9192 } else { 9193 /** 9194 * screen dark and PNO supported => scan alarm disabled 9195 */ 9196 if (mBackgroundScanSupported) { 9197 /* If a regular scan result is pending, do not initiate background 9198 * scan until the scan results are returned. This is needed because 9199 * initiating a background scan will cancel the regular scan and 9200 * scan results will not be returned until background scanning is 9201 * cleared 9202 */ 9203 if (!mIsScanOngoing) { 9204 enableBackgroundScan(true); 9205 } 9206 } else { 9207 setScanAlarm(true); 9208 } 9209 } 9210 } 9211 9212 /** 9213 * If we have no networks saved, the supplicant stops doing the periodic scan. 9214 * The scans are useful to notify the user of the presence of an open network. 9215 * Note that these are not wake up scans. 9216 */ 9217 if (mNoNetworksPeriodicScan != 0 && !mP2pConnected.get() 9218 && mWifiConfigStore.getConfiguredNetworks().size() == 0) { 9219 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 9220 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 9221 } 9222 9223 mDisconnectedTimeStamp = System.currentTimeMillis(); 9224 mDisconnectedPnoAlarmCount = 0; 9225 } 9226 @Override 9227 public boolean processMessage(Message message) { 9228 boolean ret = HANDLED; 9229 9230 logStateAndMessage(message, this); 9231 9232 switch (message.what) { 9233 case CMD_NO_NETWORKS_PERIODIC_SCAN: 9234 if (mP2pConnected.get()) break; 9235 if (mNoNetworksPeriodicScan != 0 && message.arg1 == mPeriodicScanToken && 9236 mWifiConfigStore.getConfiguredNetworks().size() == 0) { 9237 startScan(UNKNOWN_SCAN_SOURCE, -1, null, null); 9238 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 9239 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 9240 } 9241 break; 9242 case WifiManager.FORGET_NETWORK: 9243 case CMD_REMOVE_NETWORK: 9244 case CMD_REMOVE_APP_CONFIGURATIONS: 9245 case CMD_REMOVE_USER_CONFIGURATIONS: 9246 // Set up a delayed message here. After the forget/remove is handled 9247 // the handled delayed message will determine if there is a need to 9248 // scan and continue 9249 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 9250 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 9251 ret = NOT_HANDLED; 9252 break; 9253 case CMD_SET_OPERATIONAL_MODE: 9254 if (message.arg1 != CONNECT_MODE) { 9255 mOperationalMode = message.arg1; 9256 9257 mWifiConfigStore.disableAllNetworks(); 9258 if (mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 9259 mWifiP2pChannel.sendMessage(CMD_DISABLE_P2P_REQ); 9260 setWifiState(WIFI_STATE_DISABLED); 9261 } 9262 transitionTo(mScanModeState); 9263 } 9264 mWifiConfigStore. 9265 setAndEnableLastSelectedConfiguration( 9266 WifiConfiguration.INVALID_NETWORK_ID); 9267 break; 9268 /* Ignore network disconnect */ 9269 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 9270 // Interpret this as an L2 connection failure 9271 // End current connection event and log L2 reason code. 9272 mWifiMetrics.endConnectionEvent(message.arg2, 9273 WifiMetricsProto.ConnectionEvent.HLF_UNKNOWN); 9274 break; 9275 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 9276 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 9277 if (DBG) { 9278 logd("SUPPLICANT_STATE_CHANGE_EVENT state=" + stateChangeResult.state + 9279 " -> state= " + WifiInfo.getDetailedStateOf(stateChangeResult.state) 9280 + " debouncing=" + linkDebouncing); 9281 } 9282 setNetworkDetailedState(WifiInfo.getDetailedStateOf(stateChangeResult.state)); 9283 /* ConnectModeState does the rest of the handling */ 9284 ret = NOT_HANDLED; 9285 break; 9286 case CMD_START_SCAN: 9287 if (!checkOrDeferScanAllowed(message)) { 9288 // The scan request was rescheduled 9289 messageHandlingStatus = MESSAGE_HANDLING_STATUS_REFUSED; 9290 return HANDLED; 9291 } 9292 if (message.arg1 == SCAN_ALARM_SOURCE) { 9293 // Check if the CMD_START_SCAN message is obsolete (and thus if it should 9294 // not be processed) and restart the scan 9295 int period = mWifiConfigStore.wifiDisconnectedShortScanIntervalMilli.get(); 9296 if (mP2pConnected.get()) { 9297 period = (int) mFacade.getLongSetting(mContext, 9298 Settings.Global.WIFI_SCAN_INTERVAL_WHEN_P2P_CONNECTED_MS, 9299 period); 9300 } 9301 if (!checkAndRestartDelayedScan(message.arg2, 9302 true, period, null, null)) { 9303 messageHandlingStatus = MESSAGE_HANDLING_STATUS_OBSOLETE; 9304 logd("Disconnected CMD_START_SCAN source " 9305 + message.arg1 9306 + " " + message.arg2 + ", " + mDelayedScanCounter 9307 + " -> obsolete"); 9308 return HANDLED; 9309 } 9310 /* Disable background scan temporarily during a regular scan */ 9311 enableBackgroundScan(false); 9312 handleScanRequest(WifiNative.SCAN_WITHOUT_CONNECTION_SETUP, message); 9313 ret = HANDLED; 9314 } else { 9315 9316 /* 9317 * The SCAN request is not handled in this state and 9318 * would eventually might/will get handled in the 9319 * parent's state. The PNO, if already enabled had to 9320 * get disabled before the SCAN trigger. Hence, stop 9321 * the PNO if already enabled in this state, though the 9322 * SCAN request is not handled(PNO disable before the 9323 * SCAN trigger in any other state is not the right 9324 * place to issue). 9325 */ 9326 9327 enableBackgroundScan(false); 9328 ret = NOT_HANDLED; 9329 } 9330 break; 9331 case CMD_RESTART_AUTOJOIN_OFFLOAD: 9332 if ( (int)message.arg2 < mRestartAutoJoinOffloadCounter ) { 9333 messageHandlingStatus = MESSAGE_HANDLING_STATUS_OBSOLETE; 9334 return HANDLED; 9335 } 9336 /* If we are still in Disconnected state after having discovered a valid 9337 * network this means autojoin didnt managed to associate to the network, 9338 * then restart PNO so as we will try associating to it again. 9339 */ 9340 if (useHalBasedAutoJoinOffload()) { 9341 if (mGScanStartTimeMilli == 0) { 9342 // If offload is not started, then start it... 9343 startGScanDisconnectedModeOffload("disconnectedRestart"); 9344 } else { 9345 // If offload is already started, then check if we need to increase 9346 // the scan period and restart the Gscan 9347 long now = System.currentTimeMillis(); 9348 if (mGScanStartTimeMilli != 0 && now > mGScanStartTimeMilli 9349 && ((now - mGScanStartTimeMilli) 9350 > DISCONNECTED_SHORT_SCANS_DURATION_MILLI) 9351 && (mGScanPeriodMilli 9352 < mWifiConfigStore.wifiDisconnectedLongScanIntervalMilli.get())) 9353 { 9354 startDisconnectedGScan("disconnected restart gscan"); 9355 } 9356 } 9357 } else { 9358 // If we are still disconnected for a short while after having found a 9359 // network thru PNO, then something went wrong, and for some reason we 9360 // couldn't join this network. 9361 // It might be due to a SW bug in supplicant or the wifi stack, or an 9362 // interoperability issue, or we try to join a bad bss and failed 9363 // In that case we want to restart pno so as to make sure that we will 9364 // attempt again to join that network. 9365 if (!mScreenOn && !mIsScanOngoing && mBackgroundScanSupported) { 9366 enableBackgroundScan(false); 9367 enableBackgroundScan(true); 9368 } 9369 return HANDLED; 9370 } 9371 break; 9372 case WifiMonitor.SCAN_RESULTS_EVENT: 9373 case WifiMonitor.SCAN_FAILED_EVENT: 9374 /* Re-enable background scan when a pending scan result is received */ 9375 if (!mScreenOn && mIsScanOngoing 9376 && mBackgroundScanSupported 9377 && !useHalBasedAutoJoinOffload()) { 9378 enableBackgroundScan(true); 9379 } else if (!mScreenOn 9380 && !mIsScanOngoing 9381 && mBackgroundScanSupported 9382 && !useHalBasedAutoJoinOffload()) { 9383 // We receive scan results from legacy PNO, hence restart the PNO alarm 9384 int delay; 9385 if (mDisconnectedPnoAlarmCount < 1) { 9386 delay = 30 * 1000; 9387 } else if (mDisconnectedPnoAlarmCount < 3) { 9388 delay = 60 * 1000; 9389 } else { 9390 delay = 360 * 1000; 9391 } 9392 mDisconnectedPnoAlarmCount++; 9393 if (VDBG) { 9394 logd("Starting PNO alarm " + delay); 9395 } 9396 mAlarmManager.set(AlarmManager.RTC_WAKEUP, 9397 System.currentTimeMillis() + delay, 9398 mPnoIntent); 9399 } 9400 /* Handled in parent state */ 9401 ret = NOT_HANDLED; 9402 break; 9403 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 9404 NetworkInfo info = (NetworkInfo) message.obj; 9405 mP2pConnected.set(info.isConnected()); 9406 if (mP2pConnected.get()) { 9407 int defaultInterval = mContext.getResources().getInteger( 9408 R.integer.config_wifi_scan_interval_p2p_connected); 9409 long scanIntervalMs = mFacade.getLongSetting(mContext, 9410 Settings.Global.WIFI_SCAN_INTERVAL_WHEN_P2P_CONNECTED_MS, 9411 defaultInterval); 9412 mWifiNative.setScanInterval((int) scanIntervalMs/1000); 9413 } else if (mWifiConfigStore.getConfiguredNetworks().size() == 0) { 9414 if (DBG) log("Turn on scanning after p2p disconnected"); 9415 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 9416 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 9417 } else { 9418 // If P2P is not connected and there are saved networks, then restart 9419 // scanning at the normal period. This is necessary because scanning might 9420 // have been disabled altogether if WIFI_SCAN_INTERVAL_WHEN_P2P_CONNECTED_MS 9421 // was set to zero. 9422 if (useHalBasedAutoJoinOffload()) { 9423 startGScanDisconnectedModeOffload("p2pRestart"); 9424 } else { 9425 startDelayedScan( 9426 mWifiConfigStore.wifiDisconnectedShortScanIntervalMilli.get(), 9427 null, null); 9428 } 9429 } 9430 break; 9431 case CMD_RECONNECT: 9432 case CMD_REASSOCIATE: 9433 if (mTemporarilyDisconnectWifi) { 9434 // Drop a third party reconnect/reassociate if STA is 9435 // temporarily disconnected for p2p 9436 break; 9437 } else { 9438 // ConnectModeState handles it 9439 ret = NOT_HANDLED; 9440 } 9441 break; 9442 case CMD_SCREEN_STATE_CHANGED: 9443 handleScreenStateChanged(message.arg1 != 0); 9444 break; 9445 default: 9446 ret = NOT_HANDLED; 9447 } 9448 return ret; 9449 } 9450 9451 @Override 9452 public void exit() { 9453 mDisconnectedPnoAlarmCount = 0; 9454 /* No need for a background scan upon exit from a disconnected state */ 9455 enableBackgroundScan(false); 9456 setScanAlarm(false); 9457 mAlarmManager.cancel(mPnoIntent); 9458 } 9459 } 9460 9461 class WpsRunningState extends State { 9462 // Tracks the source to provide a reply 9463 private Message mSourceMessage; 9464 @Override 9465 public void enter() { 9466 mSourceMessage = Message.obtain(getCurrentMessage()); 9467 } 9468 @Override 9469 public boolean processMessage(Message message) { 9470 logStateAndMessage(message, this); 9471 9472 switch (message.what) { 9473 case WifiMonitor.WPS_SUCCESS_EVENT: 9474 // Ignore intermediate success, wait for full connection 9475 break; 9476 case WifiMonitor.NETWORK_CONNECTION_EVENT: 9477 replyToMessage(mSourceMessage, WifiManager.WPS_COMPLETED); 9478 mSourceMessage.recycle(); 9479 mSourceMessage = null; 9480 deferMessage(message); 9481 transitionTo(mDisconnectedState); 9482 break; 9483 case WifiMonitor.WPS_OVERLAP_EVENT: 9484 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, 9485 WifiManager.WPS_OVERLAP_ERROR); 9486 mSourceMessage.recycle(); 9487 mSourceMessage = null; 9488 transitionTo(mDisconnectedState); 9489 break; 9490 case WifiMonitor.WPS_FAIL_EVENT: 9491 // Arg1 has the reason for the failure 9492 if ((message.arg1 != WifiManager.ERROR) || (message.arg2 != 0)) { 9493 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, message.arg1); 9494 mSourceMessage.recycle(); 9495 mSourceMessage = null; 9496 transitionTo(mDisconnectedState); 9497 mWifiMetrics.endConnectionEvent( 9498 message.arg1, WifiMetricsProto.ConnectionEvent.HLF_UNKNOWN); 9499 } else { 9500 if (DBG) log("Ignore unspecified fail event during WPS connection"); 9501 } 9502 break; 9503 case WifiMonitor.WPS_TIMEOUT_EVENT: 9504 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, 9505 WifiManager.WPS_TIMED_OUT); 9506 mSourceMessage.recycle(); 9507 mSourceMessage = null; 9508 transitionTo(mDisconnectedState); 9509 break; 9510 case WifiManager.START_WPS: 9511 replyToMessage(message, WifiManager.WPS_FAILED, WifiManager.IN_PROGRESS); 9512 break; 9513 case WifiManager.CANCEL_WPS: 9514 if (mWifiNative.cancelWps()) { 9515 replyToMessage(message, WifiManager.CANCEL_WPS_SUCCEDED); 9516 } else { 9517 replyToMessage(message, WifiManager.CANCEL_WPS_FAILED, WifiManager.ERROR); 9518 } 9519 transitionTo(mDisconnectedState); 9520 break; 9521 /** 9522 * Defer all commands that can cause connections to a different network 9523 * or put the state machine out of connect mode 9524 */ 9525 case CMD_STOP_DRIVER: 9526 case CMD_SET_OPERATIONAL_MODE: 9527 case WifiManager.CONNECT_NETWORK: 9528 case CMD_ENABLE_NETWORK: 9529 case CMD_RECONNECT: 9530 case CMD_REASSOCIATE: 9531 case CMD_ENABLE_ALL_NETWORKS: 9532 deferMessage(message); 9533 break; 9534 case CMD_AUTO_CONNECT: 9535 case CMD_AUTO_ROAM: 9536 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 9537 return HANDLED; 9538 case CMD_START_SCAN: 9539 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 9540 return HANDLED; 9541 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 9542 if (DBG) log("Network connection lost"); 9543 handleNetworkDisconnect(); 9544 break; 9545 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 9546 if (DBG) log("Ignore Assoc reject event during WPS Connection"); 9547 break; 9548 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 9549 // Disregard auth failure events during WPS connection. The 9550 // EAP sequence is retried several times, and there might be 9551 // failures (especially for wps pin). We will get a WPS_XXX 9552 // event at the end of the sequence anyway. 9553 if (DBG) log("Ignore auth failure during WPS connection"); 9554 break; 9555 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 9556 // Throw away supplicant state changes when WPS is running. 9557 // We will start getting supplicant state changes once we get 9558 // a WPS success or failure 9559 break; 9560 default: 9561 return NOT_HANDLED; 9562 } 9563 return HANDLED; 9564 } 9565 9566 @Override 9567 public void exit() { 9568 mWifiConfigStore.enableAllNetworks(); 9569 mWifiConfigStore.loadConfiguredNetworks(); 9570 } 9571 } 9572 9573 class SoftApStartingState extends State { 9574 @Override 9575 public void enter() { 9576 final Message message = getCurrentMessage(); 9577 if (message.what == CMD_START_AP) { 9578 final WifiConfiguration config = (WifiConfiguration) message.obj; 9579 9580 if (config == null) { 9581 mWifiApConfigChannel.sendMessage(CMD_REQUEST_AP_CONFIG); 9582 } else { 9583 mWifiApConfigChannel.sendMessage(CMD_SET_AP_CONFIG, config); 9584 startSoftApWithConfig(config); 9585 } 9586 } else { 9587 throw new RuntimeException("Illegal transition to SoftApStartingState: " + message); 9588 } 9589 } 9590 @Override 9591 public boolean processMessage(Message message) { 9592 logStateAndMessage(message, this); 9593 9594 switch(message.what) { 9595 case CMD_START_SUPPLICANT: 9596 case CMD_STOP_SUPPLICANT: 9597 case CMD_START_AP: 9598 case CMD_STOP_AP: 9599 case CMD_START_DRIVER: 9600 case CMD_STOP_DRIVER: 9601 case CMD_SET_OPERATIONAL_MODE: 9602 case CMD_SET_COUNTRY_CODE: 9603 case CMD_SET_FREQUENCY_BAND: 9604 case CMD_START_PACKET_FILTERING: 9605 case CMD_STOP_PACKET_FILTERING: 9606 case CMD_TETHER_STATE_CHANGE: 9607 deferMessage(message); 9608 break; 9609 case WifiStateMachine.CMD_RESPONSE_AP_CONFIG: 9610 WifiConfiguration config = (WifiConfiguration) message.obj; 9611 if (config != null) { 9612 startSoftApWithConfig(config); 9613 } else { 9614 loge("Softap config is null!"); 9615 sendMessage(CMD_START_AP_FAILURE, WifiManager.SAP_START_FAILURE_GENERAL); 9616 } 9617 break; 9618 case CMD_START_AP_SUCCESS: 9619 setWifiApState(WIFI_AP_STATE_ENABLED, 0); 9620 transitionTo(mSoftApStartedState); 9621 break; 9622 case CMD_START_AP_FAILURE: 9623 setWifiApState(WIFI_AP_STATE_FAILED, message.arg1); 9624 transitionTo(mInitialState); 9625 break; 9626 default: 9627 return NOT_HANDLED; 9628 } 9629 return HANDLED; 9630 } 9631 } 9632 9633 class SoftApStartedState extends State { 9634 @Override 9635 public boolean processMessage(Message message) { 9636 logStateAndMessage(message, this); 9637 9638 switch(message.what) { 9639 case CMD_STOP_AP: 9640 if (DBG) log("Stopping Soft AP"); 9641 /* We have not tethered at this point, so we just shutdown soft Ap */ 9642 try { 9643 mNwService.stopAccessPoint(mInterfaceName); 9644 } catch(Exception e) { 9645 loge("Exception in stopAccessPoint()"); 9646 } 9647 setWifiApState(WIFI_AP_STATE_DISABLED, 0); 9648 transitionTo(mInitialState); 9649 break; 9650 case CMD_START_AP: 9651 // Ignore a start on a running access point 9652 break; 9653 // Fail client mode operation when soft AP is enabled 9654 case CMD_START_SUPPLICANT: 9655 loge("Cannot start supplicant with a running soft AP"); 9656 setWifiState(WIFI_STATE_UNKNOWN); 9657 break; 9658 case CMD_TETHER_STATE_CHANGE: 9659 TetherStateChange stateChange = (TetherStateChange) message.obj; 9660 if (startTethering(stateChange.available)) { 9661 transitionTo(mTetheringState); 9662 } 9663 break; 9664 default: 9665 return NOT_HANDLED; 9666 } 9667 return HANDLED; 9668 } 9669 } 9670 9671 class TetheringState extends State { 9672 @Override 9673 public void enter() { 9674 /* Send ourselves a delayed message to shut down if tethering fails to notify */ 9675 sendMessageDelayed(obtainMessage(CMD_TETHER_NOTIFICATION_TIMED_OUT, 9676 ++mTetherToken, 0), TETHER_NOTIFICATION_TIME_OUT_MSECS); 9677 } 9678 @Override 9679 public boolean processMessage(Message message) { 9680 logStateAndMessage(message, this); 9681 9682 switch(message.what) { 9683 case CMD_TETHER_STATE_CHANGE: 9684 TetherStateChange stateChange = (TetherStateChange) message.obj; 9685 if (isWifiTethered(stateChange.active)) { 9686 transitionTo(mTetheredState); 9687 } 9688 return HANDLED; 9689 case CMD_TETHER_NOTIFICATION_TIMED_OUT: 9690 if (message.arg1 == mTetherToken) { 9691 loge("Failed to get tether update, shutdown soft access point"); 9692 transitionTo(mSoftApStartedState); 9693 // Needs to be first thing handled 9694 sendMessageAtFrontOfQueue(CMD_STOP_AP); 9695 } 9696 break; 9697 case CMD_START_SUPPLICANT: 9698 case CMD_STOP_SUPPLICANT: 9699 case CMD_START_AP: 9700 case CMD_STOP_AP: 9701 case CMD_START_DRIVER: 9702 case CMD_STOP_DRIVER: 9703 case CMD_SET_OPERATIONAL_MODE: 9704 case CMD_SET_COUNTRY_CODE: 9705 case CMD_SET_FREQUENCY_BAND: 9706 case CMD_START_PACKET_FILTERING: 9707 case CMD_STOP_PACKET_FILTERING: 9708 deferMessage(message); 9709 break; 9710 default: 9711 return NOT_HANDLED; 9712 } 9713 return HANDLED; 9714 } 9715 } 9716 9717 class TetheredState extends State { 9718 @Override 9719 public boolean processMessage(Message message) { 9720 logStateAndMessage(message, this); 9721 9722 switch(message.what) { 9723 case CMD_TETHER_STATE_CHANGE: 9724 TetherStateChange stateChange = (TetherStateChange) message.obj; 9725 if (!isWifiTethered(stateChange.active)) { 9726 loge("Tethering reports wifi as untethered!, shut down soft Ap"); 9727 setHostApRunning(null, false); 9728 setHostApRunning(null, true); 9729 } 9730 return HANDLED; 9731 case CMD_STOP_AP: 9732 if (DBG) log("Untethering before stopping AP"); 9733 setWifiApState(WIFI_AP_STATE_DISABLING, 0); 9734 stopTethering(); 9735 transitionTo(mUntetheringState); 9736 // More work to do after untethering 9737 deferMessage(message); 9738 break; 9739 default: 9740 return NOT_HANDLED; 9741 } 9742 return HANDLED; 9743 } 9744 } 9745 9746 class UntetheringState extends State { 9747 @Override 9748 public void enter() { 9749 /* Send ourselves a delayed message to shut down if tethering fails to notify */ 9750 sendMessageDelayed(obtainMessage(CMD_TETHER_NOTIFICATION_TIMED_OUT, 9751 ++mTetherToken, 0), TETHER_NOTIFICATION_TIME_OUT_MSECS); 9752 9753 } 9754 @Override 9755 public boolean processMessage(Message message) { 9756 logStateAndMessage(message, this); 9757 9758 switch(message.what) { 9759 case CMD_TETHER_STATE_CHANGE: 9760 TetherStateChange stateChange = (TetherStateChange) message.obj; 9761 9762 /* Wait till wifi is untethered */ 9763 if (isWifiTethered(stateChange.active)) break; 9764 9765 transitionTo(mSoftApStartedState); 9766 break; 9767 case CMD_TETHER_NOTIFICATION_TIMED_OUT: 9768 if (message.arg1 == mTetherToken) { 9769 loge("Failed to get tether update, force stop access point"); 9770 transitionTo(mSoftApStartedState); 9771 } 9772 break; 9773 case CMD_START_SUPPLICANT: 9774 case CMD_STOP_SUPPLICANT: 9775 case CMD_START_AP: 9776 case CMD_STOP_AP: 9777 case CMD_START_DRIVER: 9778 case CMD_STOP_DRIVER: 9779 case CMD_SET_OPERATIONAL_MODE: 9780 case CMD_SET_COUNTRY_CODE: 9781 case CMD_SET_FREQUENCY_BAND: 9782 case CMD_START_PACKET_FILTERING: 9783 case CMD_STOP_PACKET_FILTERING: 9784 deferMessage(message); 9785 break; 9786 default: 9787 return NOT_HANDLED; 9788 } 9789 return HANDLED; 9790 } 9791 } 9792 9793 /** 9794 * State machine initiated requests can have replyTo set to null indicating 9795 * there are no recepients, we ignore those reply actions. 9796 */ 9797 private void replyToMessage(Message msg, int what) { 9798 if (msg.replyTo == null) return; 9799 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 9800 mReplyChannel.replyToMessage(msg, dstMsg); 9801 } 9802 9803 private void replyToMessage(Message msg, int what, int arg1) { 9804 if (msg.replyTo == null) return; 9805 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 9806 dstMsg.arg1 = arg1; 9807 mReplyChannel.replyToMessage(msg, dstMsg); 9808 } 9809 9810 private void replyToMessage(Message msg, int what, Object obj) { 9811 if (msg.replyTo == null) return; 9812 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 9813 dstMsg.obj = obj; 9814 mReplyChannel.replyToMessage(msg, dstMsg); 9815 } 9816 9817 /** 9818 * arg2 on the source message has a unique id that needs to be retained in replies 9819 * to match the request 9820 * <p>see WifiManager for details 9821 */ 9822 private Message obtainMessageWithWhatAndArg2(Message srcMsg, int what) { 9823 Message msg = Message.obtain(); 9824 msg.what = what; 9825 msg.arg2 = srcMsg.arg2; 9826 return msg; 9827 } 9828 9829 /** 9830 * @param wifiCredentialEventType WIFI_CREDENTIAL_SAVED or WIFI_CREDENTIAL_FORGOT 9831 * @param msg Must have a WifiConfiguration obj to succeed 9832 */ 9833 private void broadcastWifiCredentialChanged(int wifiCredentialEventType, 9834 WifiConfiguration config) { 9835 if (config != null && config.preSharedKey != null) { 9836 Intent intent = new Intent(WifiManager.WIFI_CREDENTIAL_CHANGED_ACTION); 9837 intent.putExtra(WifiManager.EXTRA_WIFI_CREDENTIAL_SSID, config.SSID); 9838 intent.putExtra(WifiManager.EXTRA_WIFI_CREDENTIAL_EVENT_TYPE, 9839 wifiCredentialEventType); 9840 mContext.sendBroadcastAsUser(intent, UserHandle.CURRENT, 9841 android.Manifest.permission.RECEIVE_WIFI_CREDENTIAL_CHANGE); 9842 } 9843 } 9844 9845 private static int parseHex(char ch) { 9846 if ('0' <= ch && ch <= '9') { 9847 return ch - '0'; 9848 } else if ('a' <= ch && ch <= 'f') { 9849 return ch - 'a' + 10; 9850 } else if ('A' <= ch && ch <= 'F') { 9851 return ch - 'A' + 10; 9852 } else { 9853 throw new NumberFormatException("" + ch + " is not a valid hex digit"); 9854 } 9855 } 9856 9857 private byte[] parseHex(String hex) { 9858 /* This only works for good input; don't throw bad data at it */ 9859 if (hex == null) { 9860 return new byte[0]; 9861 } 9862 9863 if (hex.length() % 2 != 0) { 9864 throw new NumberFormatException(hex + " is not a valid hex string"); 9865 } 9866 9867 byte[] result = new byte[(hex.length())/2 + 1]; 9868 result[0] = (byte) ((hex.length())/2); 9869 for (int i = 0, j = 1; i < hex.length(); i += 2, j++) { 9870 int val = parseHex(hex.charAt(i)) * 16 + parseHex(hex.charAt(i+1)); 9871 byte b = (byte) (val & 0xFF); 9872 result[j] = b; 9873 } 9874 9875 return result; 9876 } 9877 9878 private static String makeHex(byte[] bytes) { 9879 StringBuilder sb = new StringBuilder(); 9880 for (byte b : bytes) { 9881 sb.append(String.format("%02x", b)); 9882 } 9883 return sb.toString(); 9884 } 9885 9886 private static String makeHex(byte[] bytes, int from, int len) { 9887 StringBuilder sb = new StringBuilder(); 9888 for (int i = 0; i < len; i++) { 9889 sb.append(String.format("%02x", bytes[from+i])); 9890 } 9891 return sb.toString(); 9892 } 9893 9894 private static byte[] concat(byte[] array1, byte[] array2, byte[] array3) { 9895 9896 int len = array1.length + array2.length + array3.length; 9897 9898 if (array1.length != 0) { 9899 len++; /* add another byte for size */ 9900 } 9901 9902 if (array2.length != 0) { 9903 len++; /* add another byte for size */ 9904 } 9905 9906 if (array3.length != 0) { 9907 len++; /* add another byte for size */ 9908 } 9909 9910 byte[] result = new byte[len]; 9911 9912 int index = 0; 9913 if (array1.length != 0) { 9914 result[index] = (byte) (array1.length & 0xFF); 9915 index++; 9916 for (byte b : array1) { 9917 result[index] = b; 9918 index++; 9919 } 9920 } 9921 9922 if (array2.length != 0) { 9923 result[index] = (byte) (array2.length & 0xFF); 9924 index++; 9925 for (byte b : array2) { 9926 result[index] = b; 9927 index++; 9928 } 9929 } 9930 9931 if (array3.length != 0) { 9932 result[index] = (byte) (array3.length & 0xFF); 9933 index++; 9934 for (byte b : array3) { 9935 result[index] = b; 9936 index++; 9937 } 9938 } 9939 return result; 9940 } 9941 9942 private static byte[] concatHex(byte[] array1, byte[] array2) { 9943 9944 int len = array1.length + array2.length; 9945 9946 byte[] result = new byte[len]; 9947 9948 int index = 0; 9949 if (array1.length != 0) { 9950 for (byte b : array1) { 9951 result[index] = b; 9952 index++; 9953 } 9954 } 9955 9956 if (array2.length != 0) { 9957 for (byte b : array2) { 9958 result[index] = b; 9959 index++; 9960 } 9961 } 9962 9963 return result; 9964 } 9965 9966 void handleGsmAuthRequest(SimAuthRequestData requestData) { 9967 if (targetWificonfiguration == null 9968 || targetWificonfiguration.networkId == requestData.networkId) { 9969 logd("id matches targetWifiConfiguration"); 9970 } else { 9971 logd("id does not match targetWifiConfiguration"); 9972 return; 9973 } 9974 9975 TelephonyManager tm = (TelephonyManager) 9976 mContext.getSystemService(Context.TELEPHONY_SERVICE); 9977 9978 if (tm != null) { 9979 StringBuilder sb = new StringBuilder(); 9980 for (String challenge : requestData.data) { 9981 9982 if (challenge == null || challenge.isEmpty()) 9983 continue; 9984 logd("RAND = " + challenge); 9985 9986 byte[] rand = null; 9987 try { 9988 rand = parseHex(challenge); 9989 } catch (NumberFormatException e) { 9990 loge("malformed challenge"); 9991 continue; 9992 } 9993 9994 String base64Challenge = android.util.Base64.encodeToString( 9995 rand, android.util.Base64.NO_WRAP); 9996 /* 9997 * First, try with appType = 2 => USIM according to 9998 * com.android.internal.telephony.PhoneConstants#APPTYPE_xxx 9999 */ 10000 int appType = 2; 10001 String tmResponse = tm.getIccSimChallengeResponse(appType, base64Challenge); 10002 if (tmResponse == null) { 10003 /* Then, in case of failure, issue may be due to sim type, retry as a simple sim 10004 * appType = 1 => SIM 10005 */ 10006 appType = 1; 10007 tmResponse = tm.getIccSimChallengeResponse(appType, base64Challenge); 10008 } 10009 logv("Raw Response - " + tmResponse); 10010 10011 if (tmResponse != null && tmResponse.length() > 4) { 10012 byte[] result = android.util.Base64.decode(tmResponse, 10013 android.util.Base64.DEFAULT); 10014 logv("Hex Response -" + makeHex(result)); 10015 int sres_len = result[0]; 10016 String sres = makeHex(result, 1, sres_len); 10017 int kc_offset = 1+sres_len; 10018 int kc_len = result[kc_offset]; 10019 String kc = makeHex(result, 1 + kc_offset, kc_len); 10020 sb.append(":" + kc + ":" + sres); 10021 logv("kc:" + kc + " sres:" + sres); 10022 10023 String response = sb.toString(); 10024 logv("Supplicant Response -" + response); 10025 mWifiNative.simAuthResponse(requestData.networkId, "GSM-AUTH", response); 10026 } else { 10027 loge("bad response - " + tmResponse); 10028 mWifiNative.simAuthFailedResponse(requestData.networkId); 10029 } 10030 } 10031 10032 } else { 10033 loge("could not get telephony manager"); 10034 mWifiNative.simAuthFailedResponse(requestData.networkId); 10035 } 10036 } 10037 10038 void handle3GAuthRequest(SimAuthRequestData requestData) { 10039 StringBuilder sb = new StringBuilder(); 10040 byte[] rand = null; 10041 byte[] authn = null; 10042 String res_type = "UMTS-AUTH"; 10043 10044 if (targetWificonfiguration == null 10045 || targetWificonfiguration.networkId == requestData.networkId) { 10046 logd("id matches targetWifiConfiguration"); 10047 } else { 10048 logd("id does not match targetWifiConfiguration"); 10049 return; 10050 } 10051 if (requestData.data.length == 2) { 10052 try { 10053 rand = parseHex(requestData.data[0]); 10054 authn = parseHex(requestData.data[1]); 10055 } catch (NumberFormatException e) { 10056 loge("malformed challenge"); 10057 } 10058 } else { 10059 loge("malformed challenge"); 10060 } 10061 10062 String tmResponse = ""; 10063 if (rand != null && authn != null) { 10064 String base64Challenge = android.util.Base64.encodeToString( 10065 concatHex(rand,authn), android.util.Base64.NO_WRAP); 10066 10067 TelephonyManager tm = (TelephonyManager) 10068 mContext.getSystemService(Context.TELEPHONY_SERVICE); 10069 if (tm != null) { 10070 int appType = 2; // 2 => USIM 10071 tmResponse = tm.getIccSimChallengeResponse(appType, base64Challenge); 10072 logv("Raw Response - " + tmResponse); 10073 } else { 10074 loge("could not get telephony manager"); 10075 } 10076 } 10077 10078 boolean good_response = false; 10079 if (tmResponse != null && tmResponse.length() > 4) { 10080 byte[] result = android.util.Base64.decode(tmResponse, 10081 android.util.Base64.DEFAULT); 10082 loge("Hex Response - " + makeHex(result)); 10083 byte tag = result[0]; 10084 if (tag == (byte) 0xdb) { 10085 logv("successful 3G authentication "); 10086 int res_len = result[1]; 10087 String res = makeHex(result, 2, res_len); 10088 int ck_len = result[res_len + 2]; 10089 String ck = makeHex(result, res_len + 3, ck_len); 10090 int ik_len = result[res_len + ck_len + 3]; 10091 String ik = makeHex(result, res_len + ck_len + 4, ik_len); 10092 sb.append(":" + ik + ":" + ck + ":" + res); 10093 logv("ik:" + ik + "ck:" + ck + " res:" + res); 10094 good_response = true; 10095 } else if (tag == (byte) 0xdc) { 10096 loge("synchronisation failure"); 10097 int auts_len = result[1]; 10098 String auts = makeHex(result, 2, auts_len); 10099 res_type = "UMTS-AUTS"; 10100 sb.append(":" + auts); 10101 logv("auts:" + auts); 10102 good_response = true; 10103 } else { 10104 loge("bad response - unknown tag = " + tag); 10105 } 10106 } else { 10107 loge("bad response - " + tmResponse); 10108 } 10109 10110 if (good_response) { 10111 String response = sb.toString(); 10112 logv("Supplicant Response -" + response); 10113 mWifiNative.simAuthResponse(requestData.networkId, res_type, response); 10114 } else { 10115 mWifiNative.umtsAuthFailedResponse(requestData.networkId); 10116 } 10117 } 10118 10119 public int getCurrentUserId() { 10120 return mCurrentUserId; 10121 } 10122 10123 /** 10124 * @param reason reason code from supplicant on network disconnected event 10125 * @return true if this is a suspicious disconnect 10126 */ 10127 static boolean unexpectedDisconnectedReason(int reason) { 10128 return reason == 2 // PREV_AUTH_NOT_VALID 10129 || reason == 6 // CLASS2_FRAME_FROM_NONAUTH_STA 10130 || reason == 7 // FRAME_FROM_NONASSOC_STA 10131 || reason == 8 // STA_HAS_LEFT 10132 || reason == 9 // STA_REQ_ASSOC_WITHOUT_AUTH 10133 || reason == 14 // MICHAEL_MIC_FAILURE 10134 || reason == 15 // 4WAY_HANDSHAKE_TIMEOUT 10135 || reason == 16 // GROUP_KEY_UPDATE_TIMEOUT 10136 || reason == 18 // GROUP_CIPHER_NOT_VALID 10137 || reason == 19 // PAIRWISE_CIPHER_NOT_VALID 10138 || reason == 23 // IEEE_802_1X_AUTH_FAILED 10139 || reason == 34; // DISASSOC_LOW_ACK 10140 } 10141 10142 /** 10143 * Update WifiMetrics before dumping 10144 */ 10145 void updateWifiMetrics() { 10146 int numSavedNetworks = mWifiConfigStore.getConfiguredNetworksSize(); 10147 int numOpenNetworks = 0; 10148 int numPersonalNetworks = 0; 10149 int numEnterpriseNetworks = 0; 10150 int numNetworksAddedByUser = 0; 10151 int numNetworksAddedByApps = 0; 10152 for (WifiConfiguration config : mWifiConfigStore.getConfiguredNetworks()) { 10153 if (config.allowedAuthAlgorithms.get(WifiConfiguration.AuthAlgorithm.OPEN)) { 10154 numOpenNetworks++; 10155 } else if (config.isEnterprise()) { 10156 numEnterpriseNetworks++; 10157 } else { 10158 numPersonalNetworks++; 10159 } 10160 if (config.selfAdded) { 10161 numNetworksAddedByUser++; 10162 } else { 10163 numNetworksAddedByApps++; 10164 } 10165 } 10166 mWifiMetrics.setNumSavedNetworks(numSavedNetworks); 10167 mWifiMetrics.setNumOpenNetworks(numOpenNetworks); 10168 mWifiMetrics.setNumPersonalNetworks(numPersonalNetworks); 10169 mWifiMetrics.setNumEnterpriseNetworks(numEnterpriseNetworks); 10170 mWifiMetrics.setNumNetworksAddedByUser(numNetworksAddedByUser); 10171 mWifiMetrics.setNumNetworksAddedByApps(numNetworksAddedByApps); 10172 10173 /* <TODO> decide how to access WifiServiecImpl.isLocationEnabled() or if to do it manually 10174 mWifiMetrics.setIsLocationEnabled(Settings.Secure.getInt( 10175 mContext.getContentResolver(), 10176 Settings.Secure.LOCATION_MODE, Settings.Secure.LOCATION_MODE_OFF) 10177 != Settings.Secure.LOCATION_MODE_OFF); 10178 */ 10179 10180 /* <TODO> decide how statemachine will access WifiSettingsStore 10181 mWifiMetrics.setIsScanningAlwaysEnabled(mSettingsStore.isScanningAlwaysAvailable()); 10182 */ 10183 } 10184 10185 private static String getLinkPropertiesSummary(LinkProperties lp) { 10186 List<String> attributes = new ArrayList(6); 10187 if (lp.hasIPv4Address()) { 10188 attributes.add("v4"); 10189 } 10190 if (lp.hasIPv4DefaultRoute()) { 10191 attributes.add("v4r"); 10192 } 10193 if (lp.hasIPv4DnsServer()) { 10194 attributes.add("v4dns"); 10195 } 10196 if (lp.hasGlobalIPv6Address()) { 10197 attributes.add("v6"); 10198 } 10199 if (lp.hasIPv6DefaultRoute()) { 10200 attributes.add("v6r"); 10201 } 10202 if (lp.hasIPv6DnsServer()) { 10203 attributes.add("v6dns"); 10204 } 10205 10206 // TODO: Replace with String.join(" ", attributes) once we're fully on JDK 8. 10207 StringBuilder sb = new StringBuilder(); 10208 boolean first = true; 10209 for (String attr : attributes) { 10210 if (!first) { 10211 sb.append(" "); 10212 } else { 10213 first = false; 10214 } 10215 sb.append(attr); 10216 } 10217 return sb.toString(); 10218 } 10219} 10220 10221