WifiStateMachine.java revision 5574ae254943a9f6bbb763f20777a52a377d7a39
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.PendingIntent; 33import android.bluetooth.BluetoothAdapter; 34import android.content.BroadcastReceiver; 35import android.content.Context; 36import android.content.Intent; 37import android.content.IntentFilter; 38import android.content.pm.ApplicationInfo; 39import android.content.pm.IPackageManager; 40import android.content.pm.PackageManager; 41import android.database.ContentObserver; 42import android.net.ConnectivityManager; 43import android.net.DhcpResults; 44import android.net.IpConfiguration; 45import android.net.LinkProperties; 46import android.net.Network; 47import android.net.NetworkAgent; 48import android.net.NetworkCapabilities; 49import android.net.NetworkFactory; 50import android.net.NetworkInfo; 51import android.net.NetworkInfo.DetailedState; 52import android.net.NetworkMisc; 53import android.net.NetworkRequest; 54import android.net.NetworkUtils; 55import android.net.RouteInfo; 56import android.net.StaticIpConfiguration; 57import android.net.TrafficStats; 58import android.net.dhcp.DhcpClient; 59import android.net.ip.IpManager; 60import android.net.wifi.IApInterface; 61import android.net.wifi.IClientInterface; 62import android.net.wifi.IWificond; 63import android.net.wifi.RssiPacketCountInfo; 64import android.net.wifi.ScanResult; 65import android.net.wifi.ScanSettings; 66import android.net.wifi.SupplicantState; 67import android.net.wifi.WifiChannel; 68import android.net.wifi.WifiConfiguration; 69import android.net.wifi.WifiConnectionStatistics; 70import android.net.wifi.WifiEnterpriseConfig; 71import android.net.wifi.WifiInfo; 72import android.net.wifi.WifiLinkLayerStats; 73import android.net.wifi.WifiManager; 74import android.net.wifi.WifiScanner; 75import android.net.wifi.WifiSsid; 76import android.net.wifi.WpsInfo; 77import android.net.wifi.WpsResult; 78import android.net.wifi.WpsResult.Status; 79import android.net.wifi.aware.WifiAwareManager; 80import android.net.wifi.p2p.IWifiP2pManager; 81import android.os.BatteryStats; 82import android.os.Binder; 83import android.os.Bundle; 84import android.os.IBinder; 85import android.os.INetworkManagementService; 86import android.os.Looper; 87import android.os.Message; 88import android.os.Messenger; 89import android.os.PowerManager; 90import android.os.Process; 91import android.os.RemoteException; 92import android.os.UserHandle; 93import android.os.UserManager; 94import android.os.WorkSource; 95import android.provider.Settings; 96import android.telephony.TelephonyManager; 97import android.text.TextUtils; 98import android.util.Log; 99import android.util.SparseArray; 100 101import com.android.internal.R; 102import com.android.internal.annotations.GuardedBy; 103import com.android.internal.annotations.VisibleForTesting; 104import com.android.internal.app.IBatteryStats; 105import com.android.internal.util.AsyncChannel; 106import com.android.internal.util.MessageUtils; 107import com.android.internal.util.Protocol; 108import com.android.internal.util.State; 109import com.android.internal.util.StateMachine; 110import com.android.server.connectivity.KeepalivePacketData; 111import com.android.server.wifi.hotspot2.IconEvent; 112import com.android.server.wifi.hotspot2.PasspointManager; 113import com.android.server.wifi.hotspot2.Utils; 114import com.android.server.wifi.hotspot2.WnmData; 115import com.android.server.wifi.p2p.WifiP2pServiceImpl; 116import com.android.server.wifi.util.TelephonyUtil; 117import com.android.server.wifi.util.TelephonyUtil.SimAuthRequestData; 118import com.android.server.wifi.util.TelephonyUtil.SimAuthResponseData; 119 120import java.io.BufferedReader; 121import java.io.FileDescriptor; 122import java.io.FileNotFoundException; 123import java.io.FileReader; 124import java.io.IOException; 125import java.io.PrintWriter; 126import java.net.Inet4Address; 127import java.net.InetAddress; 128import java.util.ArrayList; 129import java.util.Arrays; 130import java.util.HashSet; 131import java.util.LinkedList; 132import java.util.List; 133import java.util.Queue; 134import java.util.Set; 135import java.util.concurrent.atomic.AtomicBoolean; 136import java.util.concurrent.atomic.AtomicInteger; 137 138/** 139 * TODO: 140 * Deprecate WIFI_STATE_UNKNOWN 141 */ 142 143/** 144 * Track the state of Wifi connectivity. All event handling is done here, 145 * and all changes in connectivity state are initiated here. 146 * 147 * Wi-Fi now supports three modes of operation: Client, SoftAp and p2p 148 * In the current implementation, we support concurrent wifi p2p and wifi operation. 149 * The WifiStateMachine handles SoftAp and Client operations while WifiP2pService 150 * handles p2p operation. 151 * 152 * @hide 153 */ 154public class WifiStateMachine extends StateMachine implements WifiNative.WifiRssiEventHandler, 155 WifiMulticastLockManager.FilterController { 156 157 private static final String NETWORKTYPE = "WIFI"; 158 private static final String NETWORKTYPE_UNTRUSTED = "WIFI_UT"; 159 @VisibleForTesting public static final short NUM_LOG_RECS_NORMAL = 100; 160 @VisibleForTesting public static final short NUM_LOG_RECS_VERBOSE_LOW_MEMORY = 200; 161 @VisibleForTesting public static final short NUM_LOG_RECS_VERBOSE = 3000; 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 private static final String EXTRA_OSU_ICON_QUERY_BSSID = "BSSID"; 169 private static final String EXTRA_OSU_ICON_QUERY_FILENAME = "FILENAME"; 170 171 private boolean mVerboseLoggingEnabled = false; 172 173 /* debug flag, indicating if handling of ASSOCIATION_REJECT ended up blacklisting 174 * the corresponding BSSID. 175 */ 176 private boolean didBlackListBSSID = false; 177 178 /** 179 * Log with error attribute 180 * 181 * @param s is string log 182 */ 183 @Override 184 protected void loge(String s) { 185 Log.e(getName(), s); 186 } 187 @Override 188 protected void logd(String s) { 189 Log.d(getName(), s); 190 } 191 @Override 192 protected void log(String s) { 193 Log.d(getName(), s); 194 } 195 private WifiMetrics mWifiMetrics; 196 private WifiInjector mWifiInjector; 197 private WifiMonitor mWifiMonitor; 198 private WifiNative mWifiNative; 199 private WifiConfigManager mWifiConfigManager; 200 private WifiSupplicantControl mWifiSupplicantControl; 201 private WifiConnectivityManager mWifiConnectivityManager; 202 private WifiNetworkSelector mWifiNetworkSelector; 203 private INetworkManagementService mNwService; 204 private IWificond mWificond; 205 private IClientInterface mClientInterface; 206 private ConnectivityManager mCm; 207 private BaseWifiDiagnostics mWifiDiagnostics; 208 private WifiApConfigStore mWifiApConfigStore; 209 private final boolean mP2pSupported; 210 private final AtomicBoolean mP2pConnected = new AtomicBoolean(false); 211 private final boolean mAwareSupported; 212 private boolean mTemporarilyDisconnectWifi = false; 213 private final String mPrimaryDeviceType; 214 private final Clock mClock; 215 private final PropertyService mPropertyService; 216 private final BuildProperties mBuildProperties; 217 private final WifiCountryCode mCountryCode; 218 // Object holding most recent wifi score report and bad Linkspeed count 219 private final WifiScoreReport mWifiScoreReport; 220 private final PasspointManager mPasspointManager; 221 222 /* Scan results handling */ 223 private List<ScanDetail> mScanResults = new ArrayList<>(); 224 private final Object mScanResultsLock = new Object(); 225 226 // For debug, number of known scan results that were found as part of last scan result event, 227 // as well the number of scans results returned by the supplicant with that message 228 private int mNumScanResultsKnown; 229 private int mNumScanResultsReturned; 230 231 private boolean mScreenOn = false; 232 233 private final String mInterfaceName; 234 235 private int mLastSignalLevel = -1; 236 private String mLastBssid; 237 private int mLastNetworkId; // The network Id we successfully joined 238 private boolean mIsLinkDebouncing = false; 239 private final StateMachineDeathRecipient mDeathRecipient = 240 new StateMachineDeathRecipient(this, CMD_CLIENT_INTERFACE_BINDER_DEATH); 241 private boolean mIpReachabilityDisconnectEnabled = true; 242 243 @Override 244 public void onRssiThresholdBreached(byte curRssi) { 245 if (mVerboseLoggingEnabled) { 246 Log.e(TAG, "onRssiThresholdBreach event. Cur Rssi = " + curRssi); 247 } 248 sendMessage(CMD_RSSI_THRESHOLD_BREACH, curRssi); 249 } 250 251 public void processRssiThreshold(byte curRssi, int reason) { 252 if (curRssi == Byte.MAX_VALUE || curRssi == Byte.MIN_VALUE) { 253 Log.wtf(TAG, "processRssiThreshold: Invalid rssi " + curRssi); 254 return; 255 } 256 for (int i = 0; i < mRssiRanges.length; i++) { 257 if (curRssi < mRssiRanges[i]) { 258 // Assume sorted values(ascending order) for rssi, 259 // bounded by high(127) and low(-128) at extremeties 260 byte maxRssi = mRssiRanges[i]; 261 byte minRssi = mRssiRanges[i-1]; 262 // This value of hw has to be believed as this value is averaged and has breached 263 // the rssi thresholds and raised event to host. This would be eggregious if this 264 // value is invalid 265 mWifiInfo.setRssi(curRssi); 266 updateCapabilities(getCurrentWifiConfiguration()); 267 int ret = startRssiMonitoringOffload(maxRssi, minRssi); 268 Log.d(TAG, "Re-program RSSI thresholds for " + smToString(reason) + 269 ": [" + minRssi + ", " + maxRssi + "], curRssi=" + curRssi + " ret=" + ret); 270 break; 271 } 272 } 273 } 274 275 // Testing various network disconnect cases by sending lots of spurious 276 // disconnect to supplicant 277 private boolean testNetworkDisconnect = false; 278 279 private boolean mEnableRssiPolling = false; 280 private int mRssiPollToken = 0; 281 /* 3 operational states for STA operation: CONNECT_MODE, SCAN_ONLY_MODE, SCAN_ONLY_WIFI_OFF_MODE 282 * In CONNECT_MODE, the STA can scan and connect to an access point 283 * In SCAN_ONLY_MODE, the STA can only scan for access points 284 * In SCAN_ONLY_WIFI_OFF_MODE, the STA can only scan for access points with wifi toggle being off 285 */ 286 private int mOperationalMode = CONNECT_MODE; 287 private boolean mIsScanOngoing = false; 288 private boolean mIsFullScanOngoing = false; 289 290 private final Queue<Message> mBufferedScanMsg = new LinkedList<>(); 291 private static final int UNKNOWN_SCAN_SOURCE = -1; 292 private static final int ADD_OR_UPDATE_SOURCE = -3; 293 294 private static final int SCAN_REQUEST_BUFFER_MAX_SIZE = 10; 295 private static final String CUSTOMIZED_SCAN_SETTING = "customized_scan_settings"; 296 private static final String CUSTOMIZED_SCAN_WORKSOURCE = "customized_scan_worksource"; 297 private static final String SCAN_REQUEST_TIME = "scan_request_time"; 298 299 private boolean mBluetoothConnectionActive = false; 300 301 private PowerManager.WakeLock mSuspendWakeLock; 302 303 /** 304 * Interval in milliseconds between polling for RSSI 305 * and linkspeed information 306 */ 307 private static final int POLL_RSSI_INTERVAL_MSECS = 3000; 308 309 /** 310 * Interval in milliseconds between receiving a disconnect event 311 * while connected to a good AP, and handling the disconnect proper 312 */ 313 private static final int LINK_FLAPPING_DEBOUNCE_MSEC = 4000; 314 315 /** 316 * Delay between supplicant restarts upon failure to establish connection 317 */ 318 private static final int SUPPLICANT_RESTART_INTERVAL_MSECS = 5000; 319 320 /** 321 * Number of times we attempt to restart supplicant 322 */ 323 private static final int SUPPLICANT_RESTART_TRIES = 5; 324 325 /** 326 * Value to set in wpa_supplicant "bssid" field when we don't want to restrict connection to 327 * a specific AP. 328 */ 329 private static final String SUPPLICANT_BSSID_ANY = "any"; 330 331 private int mSupplicantRestartCount = 0; 332 /* Tracks sequence number on stop failure message */ 333 private int mSupplicantStopFailureToken = 0; 334 335 /** 336 * The link properties of the wifi interface. 337 * Do not modify this directly; use updateLinkProperties instead. 338 */ 339 private LinkProperties mLinkProperties; 340 341 /* Tracks sequence number on a periodic scan message */ 342 private int mPeriodicScanToken = 0; 343 344 // Wakelock held during wifi start/stop and driver load/unload 345 private PowerManager.WakeLock mWakeLock; 346 347 private Context mContext; 348 349 private final Object mDhcpResultsLock = new Object(); 350 private DhcpResults mDhcpResults; 351 352 // NOTE: Do not return to clients - use #getWiFiInfoForUid(int) 353 private final WifiInfo mWifiInfo; 354 private NetworkInfo mNetworkInfo; 355 private final NetworkCapabilities mDfltNetworkCapabilities; 356 private SupplicantStateTracker mSupplicantStateTracker; 357 358 private int mWifiLinkLayerStatsSupported = 4; // Temporary disable 359 360 // Whether the state machine goes thru the Disconnecting->Disconnected->ObtainingIpAddress 361 private boolean mAutoRoaming = false; 362 363 // Roaming failure count 364 private int mRoamFailCount = 0; 365 366 // This is the BSSID we are trying to associate to, it can be set to SUPPLICANT_BSSID_ANY 367 // if we havent selected a BSSID for joining. 368 private String mTargetRoamBSSID = SUPPLICANT_BSSID_ANY; 369 // This one is used to track whta is the current target network ID. This is used for error 370 // handling during connection setup since many error message from supplicant does not report 371 // SSID Once connected, it will be set to invalid 372 private int mTargetNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 373 private long mLastDriverRoamAttempt = 0; 374 private WifiConfiguration targetWificonfiguration = null; 375 376 boolean isRoaming() { 377 return mAutoRoaming; 378 } 379 380 /** 381 * Method to clear {@link #mTargetRoamBSSID} and reset the the current connected network's 382 * bssid in wpa_supplicant after a roam/connect attempt. 383 */ 384 public boolean clearTargetBssid(String dbg) { 385 WifiConfiguration config = mWifiConfigManager.getConfiguredNetwork(mTargetNetworkId); 386 if (config == null) { 387 return false; 388 } 389 String bssid = SUPPLICANT_BSSID_ANY; 390 if (config.BSSID != null) { 391 bssid = config.BSSID; 392 if (mVerboseLoggingEnabled) { 393 Log.d(TAG, "force BSSID to " + bssid + "due to config"); 394 } 395 } 396 if (mVerboseLoggingEnabled) { 397 logd(dbg + " clearTargetBssid " + bssid + " key=" + config.configKey()); 398 } 399 mTargetRoamBSSID = bssid; 400 return mWifiSupplicantControl.setConfiguredNetworkBSSID(bssid); 401 } 402 403 /** 404 * Set Config's default BSSID (for association purpose) and {@link #mTargetRoamBSSID} 405 * @param config config need set BSSID 406 * @param bssid default BSSID to assocaite with when connect to this network 407 * @return false -- does not change the current default BSSID of the configure 408 * true -- change the current default BSSID of the configur 409 */ 410 private boolean setTargetBssid(WifiConfiguration config, String bssid) { 411 if (config == null || bssid == null) { 412 return false; 413 } 414 if (config.BSSID != null) { 415 bssid = config.BSSID; 416 if (mVerboseLoggingEnabled) { 417 Log.d(TAG, "force BSSID to " + bssid + "due to config"); 418 } 419 } 420 if (mVerboseLoggingEnabled) { 421 Log.d(TAG, "setTargetBssid set to " + bssid + " key=" + config.configKey()); 422 } 423 mTargetRoamBSSID = bssid; 424 config.getNetworkSelectionStatus().setNetworkSelectionBSSID(bssid); 425 return true; 426 } 427 428 private final IpManager mIpManager; 429 430 // Channel for sending replies. 431 private AsyncChannel mReplyChannel = new AsyncChannel(); 432 433 private WifiAwareManager mWifiAwareManager; 434 435 // Used to initiate a connection with WifiP2pService 436 private AsyncChannel mWifiP2pChannel; 437 438 private WifiScanner mWifiScanner; 439 440 @GuardedBy("mWifiReqCountLock") 441 private int mConnectionReqCount = 0; 442 private WifiNetworkFactory mNetworkFactory; 443 @GuardedBy("mWifiReqCountLock") 444 private int mUntrustedReqCount = 0; 445 private UntrustedWifiNetworkFactory mUntrustedNetworkFactory; 446 private WifiNetworkAgent mNetworkAgent; 447 private final Object mWifiReqCountLock = new Object(); 448 449 private byte[] mRssiRanges; 450 451 // Keep track of various statistics, for retrieval by System Apps, i.e. under @SystemApi 452 // We should really persist that into the networkHistory.txt file, and read it back when 453 // WifiStateMachine starts up 454 private WifiConnectionStatistics mWifiConnectionStatistics = new WifiConnectionStatistics(); 455 456 // Used to filter out requests we couldn't possibly satisfy. 457 private final NetworkCapabilities mNetworkCapabilitiesFilter = new NetworkCapabilities(); 458 459 // Provide packet filter capabilities to ConnectivityService. 460 private final NetworkMisc mNetworkMisc = new NetworkMisc(); 461 462 /* The base for wifi message types */ 463 static final int BASE = Protocol.BASE_WIFI; 464 /* Start the supplicant */ 465 static final int CMD_START_SUPPLICANT = BASE + 11; 466 /* Stop the supplicant */ 467 static final int CMD_STOP_SUPPLICANT = BASE + 12; 468 /* Indicates Static IP succeeded */ 469 static final int CMD_STATIC_IP_SUCCESS = BASE + 15; 470 /* Indicates Static IP failed */ 471 static final int CMD_STATIC_IP_FAILURE = BASE + 16; 472 /* Indicates supplicant stop failed */ 473 static final int CMD_STOP_SUPPLICANT_FAILED = BASE + 17; 474 /* A delayed message sent to start driver when it fail to come up */ 475 static final int CMD_DRIVER_START_TIMED_OUT = BASE + 19; 476 477 /* Start the soft access point */ 478 static final int CMD_START_AP = BASE + 21; 479 /* Indicates soft ap start failed */ 480 static final int CMD_START_AP_FAILURE = BASE + 22; 481 /* Stop the soft access point */ 482 static final int CMD_STOP_AP = BASE + 23; 483 /* Soft access point teardown is completed. */ 484 static final int CMD_AP_STOPPED = BASE + 24; 485 486 static final int CMD_BLUETOOTH_ADAPTER_STATE_CHANGE = BASE + 31; 487 488 /* Supplicant commands */ 489 /* Is supplicant alive ? */ 490 static final int CMD_PING_SUPPLICANT = BASE + 51; 491 /* Add/update a network configuration */ 492 static final int CMD_ADD_OR_UPDATE_NETWORK = BASE + 52; 493 /* Delete a network */ 494 static final int CMD_REMOVE_NETWORK = BASE + 53; 495 /* Enable a network. The device will attempt a connection to the given network. */ 496 static final int CMD_ENABLE_NETWORK = BASE + 54; 497 /* Save configuration */ 498 static final int CMD_SAVE_CONFIG = BASE + 58; 499 /* Get configured networks */ 500 static final int CMD_GET_CONFIGURED_NETWORKS = BASE + 59; 501 /* Get adaptors */ 502 static final int CMD_GET_SUPPORTED_FEATURES = BASE + 61; 503 /* Get configured networks with real preSharedKey */ 504 static final int CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS = BASE + 62; 505 /* Get Link Layer Stats thru HAL */ 506 static final int CMD_GET_LINK_LAYER_STATS = BASE + 63; 507 /* Supplicant commands after driver start*/ 508 /* Initiate a scan */ 509 static final int CMD_START_SCAN = BASE + 71; 510 /* Set operational mode. CONNECT, SCAN ONLY, SCAN_ONLY with Wi-Fi off mode */ 511 static final int CMD_SET_OPERATIONAL_MODE = BASE + 72; 512 /* Disconnect from a network */ 513 static final int CMD_DISCONNECT = BASE + 73; 514 /* Reconnect to a network */ 515 static final int CMD_RECONNECT = BASE + 74; 516 /* Reassociate to a network */ 517 static final int CMD_REASSOCIATE = BASE + 75; 518 /* Get Connection Statistis */ 519 static final int CMD_GET_CONNECTION_STATISTICS = BASE + 76; 520 521 /* Controls suspend mode optimizations 522 * 523 * When high perf mode is enabled, suspend mode optimizations are disabled 524 * 525 * When high perf mode is disabled, suspend mode optimizations are enabled 526 * 527 * Suspend mode optimizations include: 528 * - packet filtering 529 * - turn off roaming 530 * - DTIM wake up settings 531 */ 532 static final int CMD_SET_HIGH_PERF_MODE = BASE + 77; 533 /* Enables RSSI poll */ 534 static final int CMD_ENABLE_RSSI_POLL = BASE + 82; 535 /* RSSI poll */ 536 static final int CMD_RSSI_POLL = BASE + 83; 537 /* Enable suspend mode optimizations in the driver */ 538 static final int CMD_SET_SUSPEND_OPT_ENABLED = BASE + 86; 539 /* Delayed NETWORK_DISCONNECT */ 540 static final int CMD_DELAYED_NETWORK_DISCONNECT = BASE + 87; 541 /* When there are no saved networks, we do a periodic scan to notify user of 542 * an open network */ 543 static final int CMD_NO_NETWORKS_PERIODIC_SCAN = BASE + 88; 544 /* Test network Disconnection NETWORK_DISCONNECT */ 545 static final int CMD_TEST_NETWORK_DISCONNECT = BASE + 89; 546 547 private int testNetworkDisconnectCounter = 0; 548 549 /* Enable TDLS on a specific MAC address */ 550 static final int CMD_ENABLE_TDLS = BASE + 92; 551 552 /** 553 * Watchdog for protecting against b/16823537 554 * Leave time for 4-way handshake to succeed 555 */ 556 static final int ROAM_GUARD_TIMER_MSEC = 15000; 557 558 int roamWatchdogCount = 0; 559 /* Roam state watchdog */ 560 static final int CMD_ROAM_WATCHDOG_TIMER = BASE + 94; 561 /* Screen change intent handling */ 562 static final int CMD_SCREEN_STATE_CHANGED = BASE + 95; 563 564 /* Disconnecting state watchdog */ 565 static final int CMD_DISCONNECTING_WATCHDOG_TIMER = BASE + 96; 566 567 /* Remove a packages associated configrations */ 568 static final int CMD_REMOVE_APP_CONFIGURATIONS = BASE + 97; 569 570 /* Disable an ephemeral network */ 571 static final int CMD_DISABLE_EPHEMERAL_NETWORK = BASE + 98; 572 573 /* Get matching network */ 574 static final int CMD_GET_MATCHING_CONFIG = BASE + 99; 575 576 /* alert from firmware */ 577 static final int CMD_FIRMWARE_ALERT = BASE + 100; 578 579 /* SIM is removed; reset any cached data for it */ 580 static final int CMD_RESET_SIM_NETWORKS = BASE + 101; 581 582 /* OSU APIs */ 583 static final int CMD_QUERY_OSU_ICON = BASE + 104; 584 585 /* try to match a provider with current network */ 586 static final int CMD_MATCH_PROVIDER_NETWORK = BASE + 105; 587 588 /* Commands from/to the SupplicantStateTracker */ 589 /* Reset the supplicant state tracker */ 590 static final int CMD_RESET_SUPPLICANT_STATE = BASE + 111; 591 592 int disconnectingWatchdogCount = 0; 593 static final int DISCONNECTING_GUARD_TIMER_MSEC = 5000; 594 595 /* P2p commands */ 596 /* We are ok with no response here since we wont do much with it anyway */ 597 public static final int CMD_ENABLE_P2P = BASE + 131; 598 /* In order to shut down supplicant cleanly, we wait till p2p has 599 * been disabled */ 600 public static final int CMD_DISABLE_P2P_REQ = BASE + 132; 601 public static final int CMD_DISABLE_P2P_RSP = BASE + 133; 602 603 public static final int CMD_BOOT_COMPLETED = BASE + 134; 604 605 /* We now have a valid IP configuration. */ 606 static final int CMD_IP_CONFIGURATION_SUCCESSFUL = BASE + 138; 607 /* We no longer have a valid IP configuration. */ 608 static final int CMD_IP_CONFIGURATION_LOST = BASE + 139; 609 /* Link configuration (IP address, DNS, ...) changes notified via netlink */ 610 static final int CMD_UPDATE_LINKPROPERTIES = BASE + 140; 611 612 /* Supplicant is trying to associate to a given BSSID */ 613 static final int CMD_TARGET_BSSID = BASE + 141; 614 615 /* Reload all networks and reconnect */ 616 static final int CMD_RELOAD_TLS_AND_RECONNECT = BASE + 142; 617 618 static final int CMD_START_CONNECT = BASE + 143; 619 620 private static final int NETWORK_STATUS_UNWANTED_DISCONNECT = 0; 621 private static final int NETWORK_STATUS_UNWANTED_VALIDATION_FAILED = 1; 622 private static final int NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN = 2; 623 624 static final int CMD_UNWANTED_NETWORK = BASE + 144; 625 626 static final int CMD_START_ROAM = BASE + 145; 627 628 static final int CMD_ASSOCIATED_BSSID = BASE + 147; 629 630 static final int CMD_NETWORK_STATUS = BASE + 148; 631 632 /* A layer 3 neighbor on the Wi-Fi link became unreachable. */ 633 static final int CMD_IP_REACHABILITY_LOST = BASE + 149; 634 635 /* Remove a packages associated configrations */ 636 static final int CMD_REMOVE_USER_CONFIGURATIONS = BASE + 152; 637 638 static final int CMD_ACCEPT_UNVALIDATED = BASE + 153; 639 640 /* used to offload sending IP packet */ 641 static final int CMD_START_IP_PACKET_OFFLOAD = BASE + 160; 642 643 /* used to stop offload sending IP packet */ 644 static final int CMD_STOP_IP_PACKET_OFFLOAD = BASE + 161; 645 646 /* used to start rssi monitoring in hw */ 647 static final int CMD_START_RSSI_MONITORING_OFFLOAD = BASE + 162; 648 649 /* used to stop rssi moniroting in hw */ 650 static final int CMD_STOP_RSSI_MONITORING_OFFLOAD = BASE + 163; 651 652 /* used to indicated RSSI threshold breach in hw */ 653 static final int CMD_RSSI_THRESHOLD_BREACH = BASE + 164; 654 655 /* Enable/Disable WifiConnectivityManager */ 656 static final int CMD_ENABLE_WIFI_CONNECTIVITY_MANAGER = BASE + 166; 657 658 /* Enable/Disable AutoJoin when associated */ 659 static final int CMD_ENABLE_AUTOJOIN_WHEN_ASSOCIATED = BASE + 167; 660 661 /** 662 * Used to handle messages bounced between WifiStateMachine and IpManager. 663 */ 664 static final int CMD_IPV4_PROVISIONING_SUCCESS = BASE + 200; 665 static final int CMD_IPV4_PROVISIONING_FAILURE = BASE + 201; 666 667 /* Push a new APF program to the HAL */ 668 static final int CMD_INSTALL_PACKET_FILTER = BASE + 202; 669 670 /* Enable/disable fallback packet filtering */ 671 static final int CMD_SET_FALLBACK_PACKET_FILTERING = BASE + 203; 672 673 /* Enable/disable Neighbor Discovery offload functionality. */ 674 static final int CMD_CONFIG_ND_OFFLOAD = BASE + 204; 675 676 /* used to indicate that the foreground user was switched */ 677 static final int CMD_USER_SWITCH = BASE + 205; 678 679 /* used to indicate that the foreground user was switched */ 680 static final int CMD_USER_UNLOCK = BASE + 206; 681 682 /* used to indicate that the foreground user was switched */ 683 static final int CMD_USER_STOP = BASE + 207; 684 685 /** 686 * Signals that IClientInterface instance underpinning our state is dead. 687 */ 688 private static final int CMD_CLIENT_INTERFACE_BINDER_DEATH = BASE + 250; 689 690 // For message logging. 691 private static final Class[] sMessageClasses = { 692 AsyncChannel.class, WifiStateMachine.class, DhcpClient.class }; 693 private static final SparseArray<String> sSmToString = 694 MessageUtils.findMessageNames(sMessageClasses); 695 696 697 /* Wifi state machine modes of operation */ 698 /* CONNECT_MODE - connect to any 'known' AP when it becomes available */ 699 public static final int CONNECT_MODE = 1; 700 /* SCAN_ONLY_MODE - don't connect to any APs; scan, but only while apps hold lock */ 701 public static final int SCAN_ONLY_MODE = 2; 702 /* SCAN_ONLY_WITH_WIFI_OFF - scan, but don't connect to any APs */ 703 public static final int SCAN_ONLY_WITH_WIFI_OFF_MODE = 3; 704 /* DISABLED_MODE - Don't connect, don't scan, don't be an AP */ 705 public static final int DISABLED_MODE = 4; 706 707 private static final int SUCCESS = 1; 708 private static final int FAILURE = -1; 709 710 /* Tracks if suspend optimizations need to be disabled by DHCP, 711 * screen or due to high perf mode. 712 * When any of them needs to disable it, we keep the suspend optimizations 713 * disabled 714 */ 715 private int mSuspendOptNeedsDisabled = 0; 716 717 private static final int SUSPEND_DUE_TO_DHCP = 1; 718 private static final int SUSPEND_DUE_TO_HIGH_PERF = 1 << 1; 719 private static final int SUSPEND_DUE_TO_SCREEN = 1 << 2; 720 721 /* Tracks if user has enabled suspend optimizations through settings */ 722 private AtomicBoolean mUserWantsSuspendOpt = new AtomicBoolean(true); 723 724 /** 725 * Scan period for the NO_NETWORKS_PERIIDOC_SCAN_FEATURE 726 */ 727 private final int mNoNetworksPeriodicScan; 728 729 /** 730 * Supplicant scan interval in milliseconds. 731 * Comes from {@link Settings.Global#WIFI_SUPPLICANT_SCAN_INTERVAL_MS} or 732 * from the default config if the setting is not set 733 */ 734 private long mSupplicantScanIntervalMs; 735 736 private boolean mEnableAutoJoinWhenAssociated; 737 private int mAlwaysEnableScansWhileAssociated; 738 private final int mThresholdQualifiedRssi24; 739 private final int mThresholdQualifiedRssi5; 740 private final int mThresholdSaturatedRssi24; 741 private final int mThresholdSaturatedRssi5; 742 private final int mThresholdMinimumRssi5; 743 private final int mThresholdMinimumRssi24; 744 private final boolean mEnableLinkDebouncing; 745 private final boolean mEnableChipWakeUpWhenAssociated; 746 private final boolean mEnableRssiPollWhenAssociated; 747 748 int mRunningBeaconCount = 0; 749 750 /* Default parent state */ 751 private State mDefaultState = new DefaultState(); 752 /* Temporary initial state */ 753 private State mInitialState = new InitialState(); 754 /* Driver loaded, waiting for supplicant to start */ 755 private State mSupplicantStartingState = new SupplicantStartingState(); 756 /* Driver loaded and supplicant ready */ 757 private State mSupplicantStartedState = new SupplicantStartedState(); 758 /* Waiting for supplicant to stop and monitor to exit */ 759 private State mSupplicantStoppingState = new SupplicantStoppingState(); 760 /* Wait until p2p is disabled 761 * This is a special state which is entered right after we exit out of DriverStartedState 762 * before transitioning to another state. 763 */ 764 private State mWaitForP2pDisableState = new WaitForP2pDisableState(); 765 /* Scan for networks, no connection will be established */ 766 private State mScanModeState = new ScanModeState(); 767 /* Connecting to an access point */ 768 private State mConnectModeState = new ConnectModeState(); 769 /* Connected at 802.11 (L2) level */ 770 private State mL2ConnectedState = new L2ConnectedState(); 771 /* fetching IP after connection to access point (assoc+auth complete) */ 772 private State mObtainingIpState = new ObtainingIpState(); 773 /* Connected with IP addr */ 774 private State mConnectedState = new ConnectedState(); 775 /* Roaming */ 776 private State mRoamingState = new RoamingState(); 777 /* disconnect issued, waiting for network disconnect confirmation */ 778 private State mDisconnectingState = new DisconnectingState(); 779 /* Network is not connected, supplicant assoc+auth is not complete */ 780 private State mDisconnectedState = new DisconnectedState(); 781 /* Waiting for WPS to be completed*/ 782 private State mWpsRunningState = new WpsRunningState(); 783 /* Soft ap state */ 784 private State mSoftApState = new SoftApState(); 785 786 /** 787 * One of {@link WifiManager#WIFI_STATE_DISABLED}, 788 * {@link WifiManager#WIFI_STATE_DISABLING}, 789 * {@link WifiManager#WIFI_STATE_ENABLED}, 790 * {@link WifiManager#WIFI_STATE_ENABLING}, 791 * {@link WifiManager#WIFI_STATE_UNKNOWN} 792 */ 793 private final AtomicInteger mWifiState = new AtomicInteger(WIFI_STATE_DISABLED); 794 795 /** 796 * One of {@link WifiManager#WIFI_AP_STATE_DISABLED}, 797 * {@link WifiManager#WIFI_AP_STATE_DISABLING}, 798 * {@link WifiManager#WIFI_AP_STATE_ENABLED}, 799 * {@link WifiManager#WIFI_AP_STATE_ENABLING}, 800 * {@link WifiManager#WIFI_AP_STATE_FAILED} 801 */ 802 private final AtomicInteger mWifiApState = new AtomicInteger(WIFI_AP_STATE_DISABLED); 803 804 /** 805 * Work source to use to blame usage on the WiFi service 806 */ 807 public static final WorkSource WIFI_WORK_SOURCE = new WorkSource(Process.WIFI_UID); 808 809 /** 810 * Keep track of whether WIFI is running. 811 */ 812 private boolean mIsRunning = false; 813 814 /** 815 * Keep track of whether we last told the battery stats we had started. 816 */ 817 private boolean mReportedRunning = false; 818 819 /** 820 * Most recently set source of starting WIFI. 821 */ 822 private final WorkSource mRunningWifiUids = new WorkSource(); 823 824 /** 825 * The last reported UIDs that were responsible for starting WIFI. 826 */ 827 private final WorkSource mLastRunningWifiUids = new WorkSource(); 828 829 private TelephonyManager mTelephonyManager; 830 private TelephonyManager getTelephonyManager() { 831 if (mTelephonyManager == null) { 832 mTelephonyManager = mWifiInjector.makeTelephonyManager(); 833 } 834 return mTelephonyManager; 835 } 836 837 private final IBatteryStats mBatteryStats; 838 839 private final String mTcpBufferSizes; 840 841 // Used for debug and stats gathering 842 private static int sScanAlarmIntentCount = 0; 843 844 private FrameworkFacade mFacade; 845 846 private final BackupManagerProxy mBackupManagerProxy; 847 848 public WifiStateMachine(Context context, FrameworkFacade facade, Looper looper, 849 UserManager userManager, WifiInjector wifiInjector, 850 BackupManagerProxy backupManagerProxy, WifiCountryCode countryCode, 851 WifiNative wifiNative) { 852 super("WifiStateMachine", looper); 853 mWifiInjector = wifiInjector; 854 mWifiMetrics = mWifiInjector.getWifiMetrics(); 855 mClock = wifiInjector.getClock(); 856 mPropertyService = wifiInjector.getPropertyService(); 857 mBuildProperties = wifiInjector.getBuildProperties(); 858 mContext = context; 859 mFacade = facade; 860 mWifiNative = wifiNative; 861 mBackupManagerProxy = backupManagerProxy; 862 863 // TODO refactor WifiNative use of context out into it's own class 864 mWifiNative.initContext(mContext); 865 mInterfaceName = mWifiNative.getInterfaceName(); 866 mNetworkInfo = new NetworkInfo(ConnectivityManager.TYPE_WIFI, 0, NETWORKTYPE, ""); 867 mBatteryStats = IBatteryStats.Stub.asInterface(mFacade.getService( 868 BatteryStats.SERVICE_NAME)); 869 870 IBinder b = mFacade.getService(Context.NETWORKMANAGEMENT_SERVICE); 871 mNwService = INetworkManagementService.Stub.asInterface(b); 872 873 mP2pSupported = mContext.getPackageManager().hasSystemFeature( 874 PackageManager.FEATURE_WIFI_DIRECT); 875 mAwareSupported = mContext.getPackageManager() 876 .hasSystemFeature(PackageManager.FEATURE_WIFI_AWARE); 877 878 mWifiConfigManager = mWifiInjector.getWifiConfigManager(); 879 mWifiApConfigStore = mWifiInjector.getWifiApConfigStore(); 880 mWifiSupplicantControl = mWifiInjector.getWifiSupplicantControl(); 881 mWifiSupplicantControl.setSystemSupportsFastBssTransition( 882 mContext.getResources().getBoolean(R.bool.config_wifi_fast_bss_transition_enabled)); 883 884 mPasspointManager = mWifiInjector.getPasspointManager(); 885 886 mWifiMonitor = WifiMonitor.getInstance(); 887 mWifiDiagnostics = mWifiInjector.makeWifiDiagnostics(mWifiNative); 888 889 mWifiInfo = new WifiInfo(); 890 mWifiNetworkSelector = mWifiInjector.getWifiNetworkSelector(); 891 mSupplicantStateTracker = 892 mFacade.makeSupplicantStateTracker(context, mWifiConfigManager, getHandler()); 893 894 mLinkProperties = new LinkProperties(); 895 896 mNetworkInfo.setIsAvailable(false); 897 mLastBssid = null; 898 mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 899 mLastSignalLevel = -1; 900 901 mIpManager = mFacade.makeIpManager(mContext, mInterfaceName, new IpManagerCallback()); 902 mIpManager.setMulticastFilter(true); 903 904 mNoNetworksPeriodicScan = mContext.getResources().getInteger( 905 R.integer.config_wifi_no_network_periodic_scan_interval); 906 907 // TODO: remove these settings from the config file since we no longer obey them 908 // mContext.getResources().getInteger(R.integer.config_wifi_framework_scan_interval); 909 // mContext.getResources().getBoolean(R.bool.config_wifi_background_scan_support); 910 911 mPrimaryDeviceType = mContext.getResources().getString( 912 R.string.config_wifi_p2p_device_type); 913 914 mCountryCode = countryCode; 915 916 mWifiScoreReport = new WifiScoreReport(mContext, mWifiConfigManager); 917 918 mUserWantsSuspendOpt.set(mFacade.getIntegerSetting(mContext, 919 Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED, 1) == 1); 920 921 mNetworkCapabilitiesFilter.addTransportType(NetworkCapabilities.TRANSPORT_WIFI); 922 mNetworkCapabilitiesFilter.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 923 mNetworkCapabilitiesFilter.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 924 mNetworkCapabilitiesFilter.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 925 mNetworkCapabilitiesFilter.setLinkUpstreamBandwidthKbps(1024 * 1024); 926 mNetworkCapabilitiesFilter.setLinkDownstreamBandwidthKbps(1024 * 1024); 927 // TODO - needs to be a bit more dynamic 928 mDfltNetworkCapabilities = new NetworkCapabilities(mNetworkCapabilitiesFilter); 929 930 IntentFilter filter = new IntentFilter(); 931 filter.addAction(Intent.ACTION_SCREEN_ON); 932 filter.addAction(Intent.ACTION_SCREEN_OFF); 933 mContext.registerReceiver( 934 new BroadcastReceiver() { 935 @Override 936 public void onReceive(Context context, Intent intent) { 937 String action = intent.getAction(); 938 939 if (action.equals(Intent.ACTION_SCREEN_ON)) { 940 sendMessage(CMD_SCREEN_STATE_CHANGED, 1); 941 } else if (action.equals(Intent.ACTION_SCREEN_OFF)) { 942 sendMessage(CMD_SCREEN_STATE_CHANGED, 0); 943 } 944 } 945 }, filter); 946 947 mContext.getContentResolver().registerContentObserver(Settings.Global.getUriFor( 948 Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED), false, 949 new ContentObserver(getHandler()) { 950 @Override 951 public void onChange(boolean selfChange) { 952 mUserWantsSuspendOpt.set(mFacade.getIntegerSetting(mContext, 953 Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED, 1) == 1); 954 } 955 }); 956 957 mContext.registerReceiver( 958 new BroadcastReceiver() { 959 @Override 960 public void onReceive(Context context, Intent intent) { 961 sendMessage(CMD_BOOT_COMPLETED); 962 } 963 }, 964 new IntentFilter(Intent.ACTION_LOCKED_BOOT_COMPLETED)); 965 966 PowerManager powerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); 967 mWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, getName()); 968 969 mSuspendWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "WifiSuspend"); 970 mSuspendWakeLock.setReferenceCounted(false); 971 972 mTcpBufferSizes = mContext.getResources().getString( 973 com.android.internal.R.string.config_wifi_tcp_buffers); 974 975 // Load Device configs 976 mEnableAutoJoinWhenAssociated = context.getResources().getBoolean( 977 R.bool.config_wifi_framework_enable_associated_network_selection); 978 mThresholdQualifiedRssi24 = context.getResources().getInteger( 979 R.integer.config_wifi_framework_wifi_score_low_rssi_threshold_24GHz); 980 mThresholdQualifiedRssi5 = context.getResources().getInteger( 981 R.integer.config_wifi_framework_wifi_score_low_rssi_threshold_5GHz); 982 mThresholdSaturatedRssi24 = context.getResources().getInteger( 983 R.integer.config_wifi_framework_wifi_score_good_rssi_threshold_24GHz); 984 mThresholdSaturatedRssi5 = context.getResources().getInteger( 985 R.integer.config_wifi_framework_wifi_score_good_rssi_threshold_5GHz); 986 mThresholdMinimumRssi5 = context.getResources().getInteger( 987 R.integer.config_wifi_framework_wifi_score_bad_rssi_threshold_5GHz); 988 mThresholdMinimumRssi24 = context.getResources().getInteger( 989 R.integer.config_wifi_framework_wifi_score_bad_rssi_threshold_24GHz); 990 mEnableLinkDebouncing = mContext.getResources().getBoolean( 991 R.bool.config_wifi_enable_disconnection_debounce); 992 mEnableChipWakeUpWhenAssociated = true; 993 mEnableRssiPollWhenAssociated = true; 994 995 // CHECKSTYLE:OFF IndentationCheck 996 addState(mDefaultState); 997 addState(mInitialState, mDefaultState); 998 addState(mSupplicantStartingState, mDefaultState); 999 addState(mSupplicantStartedState, mDefaultState); 1000 addState(mScanModeState, mSupplicantStartedState); 1001 addState(mConnectModeState, mSupplicantStartedState); 1002 addState(mL2ConnectedState, mConnectModeState); 1003 addState(mObtainingIpState, mL2ConnectedState); 1004 addState(mConnectedState, mL2ConnectedState); 1005 addState(mRoamingState, mL2ConnectedState); 1006 addState(mDisconnectingState, mConnectModeState); 1007 addState(mDisconnectedState, mConnectModeState); 1008 addState(mWpsRunningState, mConnectModeState); 1009 addState(mWaitForP2pDisableState, mSupplicantStartedState); 1010 addState(mSupplicantStoppingState, mDefaultState); 1011 addState(mSoftApState, mDefaultState); 1012 // CHECKSTYLE:ON IndentationCheck 1013 1014 setInitialState(mInitialState); 1015 1016 setLogRecSize(NUM_LOG_RECS_NORMAL); 1017 setLogOnlyTransitions(false); 1018 1019 // Clean up existing interfaces in wificond. 1020 // This ensures that wificond continue to work if java framework restarts. 1021 try { 1022 mWificond = mWifiInjector.makeWificond(); 1023 if (mWificond != null) { 1024 mWificond.tearDownInterfaces(); 1025 } 1026 } catch (RemoteException e) { 1027 // There is very little we can do here 1028 Log.e(TAG, "Failed to tear down interfaces via wificond"); 1029 } 1030 1031 //start the state machine 1032 start(); 1033 1034 // Learn the initial state of whether the screen is on. 1035 // We update this field when we receive broadcasts from the system. 1036 handleScreenStateChanged(powerManager.isInteractive()); 1037 1038 mWifiMonitor.registerHandler(mInterfaceName, CMD_TARGET_BSSID, getHandler()); 1039 mWifiMonitor.registerHandler(mInterfaceName, CMD_ASSOCIATED_BSSID, getHandler()); 1040 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.ANQP_DONE_EVENT, getHandler()); 1041 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.ASSOCIATION_REJECTION_EVENT, 1042 getHandler()); 1043 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.AUTHENTICATION_FAILURE_EVENT, 1044 getHandler()); 1045 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.DRIVER_HUNG_EVENT, getHandler()); 1046 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.GAS_QUERY_DONE_EVENT, getHandler()); 1047 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.GAS_QUERY_START_EVENT, 1048 getHandler()); 1049 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.HS20_REMEDIATION_EVENT, 1050 getHandler()); 1051 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.NETWORK_CONNECTION_EVENT, 1052 getHandler()); 1053 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.NETWORK_DISCONNECTION_EVENT, 1054 getHandler()); 1055 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.RX_HS20_ANQP_ICON_EVENT, 1056 getHandler()); 1057 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SCAN_FAILED_EVENT, getHandler()); 1058 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SCAN_RESULTS_EVENT, getHandler()); 1059 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SSID_REENABLED, getHandler()); 1060 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SSID_TEMP_DISABLED, getHandler()); 1061 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_CONNECTION_EVENT, getHandler()); 1062 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_DISCONNECTION_EVENT, 1063 getHandler()); 1064 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT, 1065 getHandler()); 1066 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_REQUEST_IDENTITY, getHandler()); 1067 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_REQUEST_SIM_AUTH, getHandler()); 1068 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_FAIL_EVENT, getHandler()); 1069 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_OVERLAP_EVENT, getHandler()); 1070 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_SUCCESS_EVENT, getHandler()); 1071 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_TIMEOUT_EVENT, getHandler()); 1072 1073 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 1074 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1075 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_DISABLED); 1076 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1077 } 1078 1079 class IpManagerCallback extends IpManager.Callback { 1080 @Override 1081 public void onPreDhcpAction() { 1082 sendMessage(DhcpClient.CMD_PRE_DHCP_ACTION); 1083 } 1084 1085 @Override 1086 public void onPostDhcpAction() { 1087 sendMessage(DhcpClient.CMD_POST_DHCP_ACTION); 1088 } 1089 1090 @Override 1091 public void onNewDhcpResults(DhcpResults dhcpResults) { 1092 if (dhcpResults != null) { 1093 sendMessage(CMD_IPV4_PROVISIONING_SUCCESS, dhcpResults); 1094 } else { 1095 sendMessage(CMD_IPV4_PROVISIONING_FAILURE); 1096 mWifiInjector.getWifiLastResortWatchdog().noteConnectionFailureAndTriggerIfNeeded( 1097 getTargetSsid(), mTargetRoamBSSID, 1098 WifiLastResortWatchdog.FAILURE_CODE_DHCP); 1099 } 1100 } 1101 1102 @Override 1103 public void onProvisioningSuccess(LinkProperties newLp) { 1104 sendMessage(CMD_UPDATE_LINKPROPERTIES, newLp); 1105 sendMessage(CMD_IP_CONFIGURATION_SUCCESSFUL); 1106 } 1107 1108 @Override 1109 public void onProvisioningFailure(LinkProperties newLp) { 1110 sendMessage(CMD_IP_CONFIGURATION_LOST); 1111 } 1112 1113 @Override 1114 public void onLinkPropertiesChange(LinkProperties newLp) { 1115 sendMessage(CMD_UPDATE_LINKPROPERTIES, newLp); 1116 } 1117 1118 @Override 1119 public void onReachabilityLost(String logMsg) { 1120 sendMessage(CMD_IP_REACHABILITY_LOST, logMsg); 1121 } 1122 1123 @Override 1124 public void installPacketFilter(byte[] filter) { 1125 sendMessage(CMD_INSTALL_PACKET_FILTER, filter); 1126 } 1127 1128 @Override 1129 public void setFallbackMulticastFilter(boolean enabled) { 1130 sendMessage(CMD_SET_FALLBACK_PACKET_FILTERING, enabled); 1131 } 1132 1133 @Override 1134 public void setNeighborDiscoveryOffload(boolean enabled) { 1135 sendMessage(CMD_CONFIG_ND_OFFLOAD, (enabled ? 1 : 0)); 1136 } 1137 } 1138 1139 private void stopIpManager() { 1140 /* Restore power save and suspend optimizations */ 1141 handlePostDhcpSetup(); 1142 mIpManager.stop(); 1143 } 1144 1145 PendingIntent getPrivateBroadcast(String action, int requestCode) { 1146 Intent intent = new Intent(action, null); 1147 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1148 intent.setPackage("android"); 1149 return mFacade.getBroadcast(mContext, requestCode, intent, 0); 1150 } 1151 1152 /** 1153 * Set wpa_supplicant log level using |mVerboseLoggingLevel| flag. 1154 */ 1155 void setSupplicantLogLevel() { 1156 if (mVerboseLoggingEnabled) { 1157 mWifiNative.setSupplicantLogLevel("DEBUG"); 1158 } else { 1159 mWifiNative.setSupplicantLogLevel("INFO"); 1160 } 1161 } 1162 1163 /** 1164 * Method to update logging level in wifi service related classes. 1165 * 1166 * @param verbose int logging level to use 1167 */ 1168 public void enableVerboseLogging(int verbose) { 1169 if (verbose > 0) { 1170 mVerboseLoggingEnabled = true; 1171 setLogRecSize(ActivityManager.isLowRamDeviceStatic() 1172 ? NUM_LOG_RECS_VERBOSE_LOW_MEMORY : NUM_LOG_RECS_VERBOSE); 1173 } else { 1174 mVerboseLoggingEnabled = false; 1175 setLogRecSize(NUM_LOG_RECS_NORMAL); 1176 } 1177 configureVerboseHalLogging(mVerboseLoggingEnabled); 1178 setSupplicantLogLevel(); 1179 mCountryCode.enableVerboseLogging(verbose); 1180 mWifiScoreReport.enableVerboseLogging(mVerboseLoggingEnabled); 1181 mWifiDiagnostics.startLogging(mVerboseLoggingEnabled); 1182 mWifiMonitor.enableVerboseLogging(verbose); 1183 mWifiNative.enableVerboseLogging(verbose); 1184 mWifiConfigManager.enableVerboseLogging(verbose); 1185 mSupplicantStateTracker.enableVerboseLogging(verbose); 1186 } 1187 1188 private static final String SYSTEM_PROPERTY_LOG_CONTROL_WIFIHAL = "log.tag.WifiHAL"; 1189 private static final String LOGD_LEVEL_DEBUG = "D"; 1190 private static final String LOGD_LEVEL_VERBOSE = "V"; 1191 private void configureVerboseHalLogging(boolean enableVerbose) { 1192 if (mBuildProperties.isUserBuild()) { // Verbose HAL logging not supported on user builds. 1193 return; 1194 } 1195 mPropertyService.set(SYSTEM_PROPERTY_LOG_CONTROL_WIFIHAL, 1196 enableVerbose ? LOGD_LEVEL_VERBOSE : LOGD_LEVEL_DEBUG); 1197 } 1198 1199 private int mAggressiveHandover = 0; 1200 1201 int getAggressiveHandover() { 1202 return mAggressiveHandover; 1203 } 1204 1205 void enableAggressiveHandover(int enabled) { 1206 mAggressiveHandover = enabled; 1207 } 1208 1209 public void clearANQPCache() { 1210 // TODO(b/31065385) 1211 // mWifiConfigManager.trimANQPCache(true); 1212 } 1213 1214 public void setAllowScansWithTraffic(int enabled) { 1215 mAlwaysEnableScansWhileAssociated = enabled; 1216 } 1217 1218 public int getAllowScansWithTraffic() { 1219 return mAlwaysEnableScansWhileAssociated; 1220 } 1221 1222 /* 1223 * Dynamically turn on/off if switching networks while connected is allowd. 1224 */ 1225 public boolean setEnableAutoJoinWhenAssociated(boolean enabled) { 1226 sendMessage(CMD_ENABLE_AUTOJOIN_WHEN_ASSOCIATED, enabled ? 1 : 0); 1227 return true; 1228 } 1229 1230 public boolean getEnableAutoJoinWhenAssociated() { 1231 return mEnableAutoJoinWhenAssociated; 1232 } 1233 1234 private boolean setRandomMacOui() { 1235 String oui = mContext.getResources().getString(R.string.config_wifi_random_mac_oui); 1236 if (TextUtils.isEmpty(oui)) { 1237 oui = GOOGLE_OUI; 1238 } 1239 String[] ouiParts = oui.split("-"); 1240 byte[] ouiBytes = new byte[3]; 1241 ouiBytes[0] = (byte) (Integer.parseInt(ouiParts[0], 16) & 0xFF); 1242 ouiBytes[1] = (byte) (Integer.parseInt(ouiParts[1], 16) & 0xFF); 1243 ouiBytes[2] = (byte) (Integer.parseInt(ouiParts[2], 16) & 0xFF); 1244 1245 logd("Setting OUI to " + oui); 1246 return mWifiNative.setScanningMacOui(ouiBytes); 1247 } 1248 1249 /** 1250 * Helper method to lookup the framework network ID of the network currently configured in 1251 * wpa_supplicant using the provided supplicant network ID. This is needed for translating the 1252 * networkID received from all {@link WifiMonitor} events. 1253 * 1254 * @param supplicantNetworkId Network ID of network in wpa_supplicant. 1255 * @return Corresponding Internal configured network ID 1256 * TODO(b/31080843): This is ugly! We need to hide this translation of networkId's. This will 1257 * be handled once we move all of this connection logic to wificond. 1258 */ 1259 private int lookupFrameworkNetworkId(int supplicantNetworkId) { 1260 return mWifiSupplicantControl.getFrameworkNetworkId(supplicantNetworkId); 1261 } 1262 1263 /** 1264 * Initiates connection to a network specified by the user/app. This method checks if the 1265 * requesting app holds the WIFI_CONFIG_OVERRIDE permission. 1266 */ 1267 private boolean connectToUserSelectNetwork(int netId, int uid) { 1268 if (!mWifiConfigManager.enableNetwork(netId, true, uid)) { 1269 loge("connectToUserSelectNetwork uid " + uid 1270 + " did not have the permissions to enable=" + netId); 1271 return false; 1272 } 1273 if (!mWifiConfigManager.checkAndUpdateLastConnectUid(netId, uid)) { 1274 logi("connectToUserSelectNetwork Allowing uid " + uid 1275 + " with insufficient permissions to connect=" + netId); 1276 } 1277 // Trigger an immediate connection to the specified network. We're also noting the user 1278 // connect choice here, so that it will be considered in the next network selection. 1279 mWifiConnectivityManager.setUserConnectChoice(netId); 1280 if (mWifiInfo.getNetworkId() == netId) { 1281 // We're already connected to the user specified network, don't trigger a 1282 // reconnection. 1283 logi("connectToUserSelectNetwork already connecting/connected=" + netId); 1284 } else { 1285 startConnectToNetwork(netId, SUPPLICANT_BSSID_ANY); 1286 } 1287 return true; 1288 } 1289 1290 /** 1291 * ****************************************************** 1292 * Methods exposed for public use 1293 * ****************************************************** 1294 */ 1295 1296 public Messenger getMessenger() { 1297 return new Messenger(getHandler()); 1298 } 1299 1300 /** 1301 * TODO: doc 1302 */ 1303 public boolean syncPingSupplicant(AsyncChannel channel) { 1304 Message resultMsg = channel.sendMessageSynchronously(CMD_PING_SUPPLICANT); 1305 boolean result = (resultMsg.arg1 != FAILURE); 1306 resultMsg.recycle(); 1307 return result; 1308 } 1309 1310 /** 1311 * Initiate a wifi scan. If workSource is not null, blame is given to it, otherwise blame is 1312 * given to callingUid. 1313 * 1314 * @param callingUid The uid initiating the wifi scan. Blame will be given here unless 1315 * workSource is specified. 1316 * @param workSource If not null, blame is given to workSource. 1317 * @param settings Scan settings, see {@link ScanSettings}. 1318 */ 1319 public void startScan(int callingUid, int scanCounter, 1320 ScanSettings settings, WorkSource workSource) { 1321 Bundle bundle = new Bundle(); 1322 bundle.putParcelable(CUSTOMIZED_SCAN_SETTING, settings); 1323 bundle.putParcelable(CUSTOMIZED_SCAN_WORKSOURCE, workSource); 1324 bundle.putLong(SCAN_REQUEST_TIME, mClock.getWallClockMillis()); 1325 sendMessage(CMD_START_SCAN, callingUid, scanCounter, bundle); 1326 } 1327 1328 private long mDisconnectedTimeStamp = 0; 1329 1330 public long getDisconnectedTimeMilli() { 1331 if (getCurrentState() == mDisconnectedState 1332 && mDisconnectedTimeStamp != 0) { 1333 long now_ms = mClock.getWallClockMillis(); 1334 return now_ms - mDisconnectedTimeStamp; 1335 } 1336 return 0; 1337 } 1338 1339 // Last connect attempt is used to prevent scan requests: 1340 // - for a period of 10 seconds after attempting to connect 1341 private long lastConnectAttemptTimestamp = 0; 1342 private Set<Integer> lastScanFreqs = null; 1343 1344 // For debugging, keep track of last message status handling 1345 // TODO, find an equivalent mechanism as part of parent class 1346 private static final int MESSAGE_HANDLING_STATUS_PROCESSED = 2; 1347 private static final int MESSAGE_HANDLING_STATUS_OK = 1; 1348 private static final int MESSAGE_HANDLING_STATUS_UNKNOWN = 0; 1349 private static final int MESSAGE_HANDLING_STATUS_REFUSED = -1; 1350 private static final int MESSAGE_HANDLING_STATUS_FAIL = -2; 1351 private static final int MESSAGE_HANDLING_STATUS_OBSOLETE = -3; 1352 private static final int MESSAGE_HANDLING_STATUS_DEFERRED = -4; 1353 private static final int MESSAGE_HANDLING_STATUS_DISCARD = -5; 1354 private static final int MESSAGE_HANDLING_STATUS_LOOPED = -6; 1355 private static final int MESSAGE_HANDLING_STATUS_HANDLING_ERROR = -7; 1356 1357 private int messageHandlingStatus = 0; 1358 1359 //TODO: this is used only to track connection attempts, however the link state and packet per 1360 //TODO: second logic should be folded into that 1361 private boolean checkOrDeferScanAllowed(Message msg) { 1362 long now = mClock.getWallClockMillis(); 1363 if (lastConnectAttemptTimestamp != 0 && (now - lastConnectAttemptTimestamp) < 10000) { 1364 Message dmsg = Message.obtain(msg); 1365 sendMessageDelayed(dmsg, 11000 - (now - lastConnectAttemptTimestamp)); 1366 return false; 1367 } 1368 return true; 1369 } 1370 1371 private int mOnTime = 0; 1372 private int mTxTime = 0; 1373 private int mRxTime = 0; 1374 1375 private int mOnTimeScreenStateChange = 0; 1376 private long lastOntimeReportTimeStamp = 0; 1377 private long lastScreenStateChangeTimeStamp = 0; 1378 private int mOnTimeLastReport = 0; 1379 private int mTxTimeLastReport = 0; 1380 private int mRxTimeLastReport = 0; 1381 1382 private long lastLinkLayerStatsUpdate = 0; 1383 1384 String reportOnTime() { 1385 long now = mClock.getWallClockMillis(); 1386 StringBuilder sb = new StringBuilder(); 1387 // Report stats since last report 1388 int on = mOnTime - mOnTimeLastReport; 1389 mOnTimeLastReport = mOnTime; 1390 int tx = mTxTime - mTxTimeLastReport; 1391 mTxTimeLastReport = mTxTime; 1392 int rx = mRxTime - mRxTimeLastReport; 1393 mRxTimeLastReport = mRxTime; 1394 int period = (int) (now - lastOntimeReportTimeStamp); 1395 lastOntimeReportTimeStamp = now; 1396 sb.append(String.format("[on:%d tx:%d rx:%d period:%d]", on, tx, rx, period)); 1397 // Report stats since Screen State Changed 1398 on = mOnTime - mOnTimeScreenStateChange; 1399 period = (int) (now - lastScreenStateChangeTimeStamp); 1400 sb.append(String.format(" from screen [on:%d period:%d]", on, period)); 1401 return sb.toString(); 1402 } 1403 1404 WifiLinkLayerStats getWifiLinkLayerStats() { 1405 WifiLinkLayerStats stats = null; 1406 if (mWifiLinkLayerStatsSupported > 0) { 1407 String name = "wlan0"; 1408 stats = mWifiNative.getWifiLinkLayerStats(name); 1409 if (name != null && stats == null && mWifiLinkLayerStatsSupported > 0) { 1410 mWifiLinkLayerStatsSupported -= 1; 1411 } else if (stats != null) { 1412 lastLinkLayerStatsUpdate = mClock.getWallClockMillis(); 1413 mOnTime = stats.on_time; 1414 mTxTime = stats.tx_time; 1415 mRxTime = stats.rx_time; 1416 mRunningBeaconCount = stats.beacon_rx; 1417 } 1418 } 1419 if (stats == null || mWifiLinkLayerStatsSupported <= 0) { 1420 long mTxPkts = mFacade.getTxPackets(mInterfaceName); 1421 long mRxPkts = mFacade.getRxPackets(mInterfaceName); 1422 mWifiInfo.updatePacketRates(mTxPkts, mRxPkts); 1423 } else { 1424 mWifiInfo.updatePacketRates(stats, lastLinkLayerStatsUpdate); 1425 } 1426 return stats; 1427 } 1428 1429 int startWifiIPPacketOffload(int slot, KeepalivePacketData packetData, int intervalSeconds) { 1430 int ret = mWifiNative.startSendingOffloadedPacket(slot, packetData, intervalSeconds * 1000); 1431 if (ret != 0) { 1432 loge("startWifiIPPacketOffload(" + slot + ", " + intervalSeconds + 1433 "): hardware error " + ret); 1434 return ConnectivityManager.PacketKeepalive.ERROR_HARDWARE_ERROR; 1435 } else { 1436 return ConnectivityManager.PacketKeepalive.SUCCESS; 1437 } 1438 } 1439 1440 int stopWifiIPPacketOffload(int slot) { 1441 int ret = mWifiNative.stopSendingOffloadedPacket(slot); 1442 if (ret != 0) { 1443 loge("stopWifiIPPacketOffload(" + slot + "): hardware error " + ret); 1444 return ConnectivityManager.PacketKeepalive.ERROR_HARDWARE_ERROR; 1445 } else { 1446 return ConnectivityManager.PacketKeepalive.SUCCESS; 1447 } 1448 } 1449 1450 int startRssiMonitoringOffload(byte maxRssi, byte minRssi) { 1451 return mWifiNative.startRssiMonitoring(maxRssi, minRssi, WifiStateMachine.this); 1452 } 1453 1454 int stopRssiMonitoringOffload() { 1455 return mWifiNative.stopRssiMonitoring(); 1456 } 1457 1458 private void handleScanRequest(Message message) { 1459 ScanSettings settings = null; 1460 WorkSource workSource = null; 1461 1462 // unbundle parameters 1463 Bundle bundle = (Bundle) message.obj; 1464 1465 if (bundle != null) { 1466 settings = bundle.getParcelable(CUSTOMIZED_SCAN_SETTING); 1467 workSource = bundle.getParcelable(CUSTOMIZED_SCAN_WORKSOURCE); 1468 } 1469 1470 Set<Integer> freqs = null; 1471 if (settings != null && settings.channelSet != null) { 1472 freqs = new HashSet<>(); 1473 for (WifiChannel channel : settings.channelSet) { 1474 freqs.add(channel.freqMHz); 1475 } 1476 } 1477 1478 // Retrieve the list of hidden network SSIDs to scan for. 1479 List<WifiScanner.ScanSettings.HiddenNetwork> hiddenNetworks = 1480 mWifiConfigManager.retrieveHiddenNetworkList(); 1481 1482 // call wifi native to start the scan 1483 if (startScanNative(freqs, hiddenNetworks, workSource)) { 1484 // a full scan covers everything, clearing scan request buffer 1485 if (freqs == null) 1486 mBufferedScanMsg.clear(); 1487 messageHandlingStatus = MESSAGE_HANDLING_STATUS_OK; 1488 return; 1489 } 1490 1491 // if reach here, scan request is rejected 1492 1493 if (!mIsScanOngoing) { 1494 // if rejection is NOT due to ongoing scan (e.g. bad scan parameters), 1495 1496 // discard this request and pop up the next one 1497 if (mBufferedScanMsg.size() > 0) { 1498 sendMessage(mBufferedScanMsg.remove()); 1499 } 1500 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 1501 } else if (!mIsFullScanOngoing) { 1502 // if rejection is due to an ongoing scan, and the ongoing one is NOT a full scan, 1503 // buffer the scan request to make sure specified channels will be scanned eventually 1504 if (freqs == null) 1505 mBufferedScanMsg.clear(); 1506 if (mBufferedScanMsg.size() < SCAN_REQUEST_BUFFER_MAX_SIZE) { 1507 Message msg = obtainMessage(CMD_START_SCAN, 1508 message.arg1, message.arg2, bundle); 1509 mBufferedScanMsg.add(msg); 1510 } else { 1511 // if too many requests in buffer, combine them into a single full scan 1512 bundle = new Bundle(); 1513 bundle.putParcelable(CUSTOMIZED_SCAN_SETTING, null); 1514 bundle.putParcelable(CUSTOMIZED_SCAN_WORKSOURCE, workSource); 1515 Message msg = obtainMessage(CMD_START_SCAN, message.arg1, message.arg2, bundle); 1516 mBufferedScanMsg.clear(); 1517 mBufferedScanMsg.add(msg); 1518 } 1519 messageHandlingStatus = MESSAGE_HANDLING_STATUS_LOOPED; 1520 } else { 1521 // mIsScanOngoing and mIsFullScanOngoing 1522 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 1523 } 1524 } 1525 1526 1527 // TODO this is a temporary measure to bridge between WifiScanner and WifiStateMachine until 1528 // scan functionality is refactored out of WifiStateMachine. 1529 /** 1530 * return true iff scan request is accepted 1531 */ 1532 private boolean startScanNative(final Set<Integer> freqs, 1533 List<WifiScanner.ScanSettings.HiddenNetwork> hiddenNetworkList, 1534 WorkSource workSource) { 1535 WifiScanner.ScanSettings settings = new WifiScanner.ScanSettings(); 1536 if (freqs == null) { 1537 settings.band = WifiScanner.WIFI_BAND_BOTH_WITH_DFS; 1538 } else { 1539 settings.band = WifiScanner.WIFI_BAND_UNSPECIFIED; 1540 int index = 0; 1541 settings.channels = new WifiScanner.ChannelSpec[freqs.size()]; 1542 for (Integer freq : freqs) { 1543 settings.channels[index++] = new WifiScanner.ChannelSpec(freq); 1544 } 1545 } 1546 settings.reportEvents = WifiScanner.REPORT_EVENT_AFTER_EACH_SCAN 1547 | WifiScanner.REPORT_EVENT_FULL_SCAN_RESULT; 1548 1549 settings.hiddenNetworks = 1550 hiddenNetworkList.toArray( 1551 new WifiScanner.ScanSettings.HiddenNetwork[hiddenNetworkList.size()]); 1552 1553 WifiScanner.ScanListener nativeScanListener = new WifiScanner.ScanListener() { 1554 // ignore all events since WifiStateMachine is registered for the supplicant events 1555 @Override 1556 public void onSuccess() { 1557 } 1558 @Override 1559 public void onFailure(int reason, String description) { 1560 mIsScanOngoing = false; 1561 mIsFullScanOngoing = false; 1562 } 1563 @Override 1564 public void onResults(WifiScanner.ScanData[] results) { 1565 } 1566 @Override 1567 public void onFullResult(ScanResult fullScanResult) { 1568 } 1569 @Override 1570 public void onPeriodChanged(int periodInMs) { 1571 } 1572 }; 1573 mWifiScanner.startScan(settings, nativeScanListener, workSource); 1574 mIsScanOngoing = true; 1575 mIsFullScanOngoing = (freqs == null); 1576 lastScanFreqs = freqs; 1577 return true; 1578 } 1579 1580 /** 1581 * TODO: doc 1582 */ 1583 public void setSupplicantRunning(boolean enable) { 1584 if (enable) { 1585 sendMessage(CMD_START_SUPPLICANT); 1586 } else { 1587 sendMessage(CMD_STOP_SUPPLICANT); 1588 } 1589 } 1590 1591 /** 1592 * TODO: doc 1593 */ 1594 public void setHostApRunning(WifiConfiguration wifiConfig, boolean enable) { 1595 if (enable) { 1596 sendMessage(CMD_START_AP, wifiConfig); 1597 } else { 1598 sendMessage(CMD_STOP_AP); 1599 } 1600 } 1601 1602 public void setWifiApConfiguration(WifiConfiguration config) { 1603 mWifiApConfigStore.setApConfiguration(config); 1604 } 1605 1606 public WifiConfiguration syncGetWifiApConfiguration() { 1607 return mWifiApConfigStore.getApConfiguration(); 1608 } 1609 1610 /** 1611 * TODO: doc 1612 */ 1613 public int syncGetWifiState() { 1614 return mWifiState.get(); 1615 } 1616 1617 /** 1618 * TODO: doc 1619 */ 1620 public String syncGetWifiStateByName() { 1621 switch (mWifiState.get()) { 1622 case WIFI_STATE_DISABLING: 1623 return "disabling"; 1624 case WIFI_STATE_DISABLED: 1625 return "disabled"; 1626 case WIFI_STATE_ENABLING: 1627 return "enabling"; 1628 case WIFI_STATE_ENABLED: 1629 return "enabled"; 1630 case WIFI_STATE_UNKNOWN: 1631 return "unknown state"; 1632 default: 1633 return "[invalid state]"; 1634 } 1635 } 1636 1637 /** 1638 * TODO: doc 1639 */ 1640 public int syncGetWifiApState() { 1641 return mWifiApState.get(); 1642 } 1643 1644 /** 1645 * TODO: doc 1646 */ 1647 public String syncGetWifiApStateByName() { 1648 switch (mWifiApState.get()) { 1649 case WIFI_AP_STATE_DISABLING: 1650 return "disabling"; 1651 case WIFI_AP_STATE_DISABLED: 1652 return "disabled"; 1653 case WIFI_AP_STATE_ENABLING: 1654 return "enabling"; 1655 case WIFI_AP_STATE_ENABLED: 1656 return "enabled"; 1657 case WIFI_AP_STATE_FAILED: 1658 return "failed"; 1659 default: 1660 return "[invalid state]"; 1661 } 1662 } 1663 1664 public boolean isConnected() { 1665 return getCurrentState() == mConnectedState; 1666 } 1667 1668 public boolean isDisconnected() { 1669 return getCurrentState() == mDisconnectedState; 1670 } 1671 1672 public boolean isSupplicantTransientState() { 1673 SupplicantState supplicantState = mWifiInfo.getSupplicantState(); 1674 if (supplicantState == SupplicantState.ASSOCIATING 1675 || supplicantState == SupplicantState.AUTHENTICATING 1676 || supplicantState == SupplicantState.FOUR_WAY_HANDSHAKE 1677 || supplicantState == SupplicantState.GROUP_HANDSHAKE) { 1678 1679 if (mVerboseLoggingEnabled) { 1680 Log.d(TAG, "Supplicant is under transient state: " + supplicantState); 1681 } 1682 return true; 1683 } else { 1684 if (mVerboseLoggingEnabled) { 1685 Log.d(TAG, "Supplicant is under steady state: " + supplicantState); 1686 } 1687 } 1688 1689 return false; 1690 } 1691 1692 public boolean isLinkDebouncing() { 1693 return mIsLinkDebouncing; 1694 } 1695 1696 /** 1697 * Get status information for the current connection, if any. 1698 * 1699 * @return a {@link WifiInfo} object containing information about the current connection 1700 */ 1701 public WifiInfo syncRequestConnectionInfo() { 1702 return getWiFiInfoForUid(Binder.getCallingUid()); 1703 } 1704 1705 public WifiInfo getWifiInfo() { 1706 return mWifiInfo; 1707 } 1708 1709 public DhcpResults syncGetDhcpResults() { 1710 synchronized (mDhcpResultsLock) { 1711 return new DhcpResults(mDhcpResults); 1712 } 1713 } 1714 1715 /** 1716 * TODO: doc 1717 */ 1718 public void setOperationalMode(int mode) { 1719 if (mVerboseLoggingEnabled) log("setting operational mode to " + String.valueOf(mode)); 1720 sendMessage(CMD_SET_OPERATIONAL_MODE, mode, 0); 1721 } 1722 1723 /** 1724 * Allow tests to confirm the operational mode for WSM. 1725 */ 1726 @VisibleForTesting 1727 protected int getOperationalModeForTest() { 1728 return mOperationalMode; 1729 } 1730 1731 /** 1732 * TODO: doc 1733 */ 1734 public List<ScanResult> syncGetScanResultsList() { 1735 synchronized (mScanResultsLock) { 1736 List<ScanResult> scanList = new ArrayList<>(); 1737 for (ScanDetail result : mScanResults) { 1738 scanList.add(new ScanResult(result.getScanResult())); 1739 } 1740 return scanList; 1741 } 1742 } 1743 1744 public boolean syncQueryPasspointIcon(AsyncChannel channel, long bssid, String fileName) { 1745 Bundle bundle = new Bundle(); 1746 bundle.putLong(EXTRA_OSU_ICON_QUERY_BSSID, bssid); 1747 bundle.putString(EXTRA_OSU_ICON_QUERY_FILENAME, fileName); 1748 Message resultMsg = channel.sendMessageSynchronously(CMD_QUERY_OSU_ICON, bundle); 1749 int result = resultMsg.arg1; 1750 resultMsg.recycle(); 1751 return result == 1; 1752 } 1753 1754 public int matchProviderWithCurrentNetwork(AsyncChannel channel, String fqdn) { 1755 Message resultMsg = channel.sendMessageSynchronously(CMD_MATCH_PROVIDER_NETWORK, fqdn); 1756 int result = resultMsg.arg1; 1757 resultMsg.recycle(); 1758 return result; 1759 } 1760 1761 /** 1762 * Deauthenticate and set the re-authentication hold off time for the current network 1763 * @param holdoff hold off time in milliseconds 1764 * @param ess set if the hold off pertains to an ESS rather than a BSS 1765 */ 1766 public void deauthenticateNetwork(AsyncChannel channel, long holdoff, boolean ess) { 1767 // TODO: This needs an implementation 1768 } 1769 1770 public void disableEphemeralNetwork(String SSID) { 1771 if (SSID != null) { 1772 sendMessage(CMD_DISABLE_EPHEMERAL_NETWORK, SSID); 1773 } 1774 } 1775 1776 /** 1777 * Disconnect from Access Point 1778 */ 1779 public void disconnectCommand() { 1780 sendMessage(CMD_DISCONNECT); 1781 } 1782 1783 public void disconnectCommand(int uid, int reason) { 1784 sendMessage(CMD_DISCONNECT, uid, reason); 1785 } 1786 1787 /** 1788 * Initiate a reconnection to AP 1789 */ 1790 public void reconnectCommand() { 1791 sendMessage(CMD_RECONNECT); 1792 } 1793 1794 /** 1795 * Initiate a re-association to AP 1796 */ 1797 public void reassociateCommand() { 1798 sendMessage(CMD_REASSOCIATE); 1799 } 1800 1801 /** 1802 * Reload networks and then reconnect; helps load correct data for TLS networks 1803 */ 1804 1805 public void reloadTlsNetworksAndReconnect() { 1806 sendMessage(CMD_RELOAD_TLS_AND_RECONNECT); 1807 } 1808 1809 /** 1810 * Add a network synchronously 1811 * 1812 * @return network id of the new network 1813 */ 1814 public int syncAddOrUpdateNetwork(AsyncChannel channel, WifiConfiguration config) { 1815 Message resultMsg = channel.sendMessageSynchronously(CMD_ADD_OR_UPDATE_NETWORK, config); 1816 int result = resultMsg.arg1; 1817 resultMsg.recycle(); 1818 return result; 1819 } 1820 1821 /** 1822 * Get configured networks synchronously 1823 * 1824 * @param channel 1825 * @return 1826 */ 1827 1828 public List<WifiConfiguration> syncGetConfiguredNetworks(int uuid, AsyncChannel channel) { 1829 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_CONFIGURED_NETWORKS, uuid); 1830 List<WifiConfiguration> result = (List<WifiConfiguration>) resultMsg.obj; 1831 resultMsg.recycle(); 1832 return result; 1833 } 1834 1835 public List<WifiConfiguration> syncGetPrivilegedConfiguredNetwork(AsyncChannel channel) { 1836 Message resultMsg = channel.sendMessageSynchronously( 1837 CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS); 1838 List<WifiConfiguration> result = (List<WifiConfiguration>) resultMsg.obj; 1839 resultMsg.recycle(); 1840 return result; 1841 } 1842 1843 public WifiConfiguration syncGetMatchingWifiConfig(ScanResult scanResult, AsyncChannel channel) { 1844 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_MATCHING_CONFIG, scanResult); 1845 return (WifiConfiguration) resultMsg.obj; 1846 } 1847 1848 /** 1849 * Get connection statistics synchronously 1850 * 1851 * @param channel 1852 * @return 1853 */ 1854 1855 public WifiConnectionStatistics syncGetConnectionStatistics(AsyncChannel channel) { 1856 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_CONNECTION_STATISTICS); 1857 WifiConnectionStatistics result = (WifiConnectionStatistics) resultMsg.obj; 1858 resultMsg.recycle(); 1859 return result; 1860 } 1861 1862 /** 1863 * Get adaptors synchronously 1864 */ 1865 1866 public int syncGetSupportedFeatures(AsyncChannel channel) { 1867 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_SUPPORTED_FEATURES); 1868 int supportedFeatureSet = resultMsg.arg1; 1869 resultMsg.recycle(); 1870 1871 // Mask the feature set against system properties. 1872 boolean disableRtt = mPropertyService.getBoolean("config.disable_rtt", false); 1873 if (disableRtt) { 1874 supportedFeatureSet &= 1875 ~(WifiManager.WIFI_FEATURE_D2D_RTT | WifiManager.WIFI_FEATURE_D2AP_RTT); 1876 } 1877 1878 return supportedFeatureSet; 1879 } 1880 1881 /** 1882 * Get link layers stats for adapter synchronously 1883 */ 1884 public WifiLinkLayerStats syncGetLinkLayerStats(AsyncChannel channel) { 1885 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_LINK_LAYER_STATS); 1886 WifiLinkLayerStats result = (WifiLinkLayerStats) resultMsg.obj; 1887 resultMsg.recycle(); 1888 return result; 1889 } 1890 1891 /** 1892 * Delete a network 1893 * 1894 * @param networkId id of the network to be removed 1895 */ 1896 public boolean syncRemoveNetwork(AsyncChannel channel, int networkId) { 1897 Message resultMsg = channel.sendMessageSynchronously(CMD_REMOVE_NETWORK, networkId); 1898 boolean result = (resultMsg.arg1 != FAILURE); 1899 resultMsg.recycle(); 1900 return result; 1901 } 1902 1903 /** 1904 * Enable a network 1905 * 1906 * @param netId network id of the network 1907 * @param disableOthers true, if all other networks have to be disabled 1908 * @return {@code true} if the operation succeeds, {@code false} otherwise 1909 */ 1910 public boolean syncEnableNetwork(AsyncChannel channel, int netId, boolean disableOthers) { 1911 Message resultMsg = channel.sendMessageSynchronously(CMD_ENABLE_NETWORK, netId, 1912 disableOthers ? 1 : 0); 1913 boolean result = (resultMsg.arg1 != FAILURE); 1914 resultMsg.recycle(); 1915 return result; 1916 } 1917 1918 /** 1919 * Disable a network 1920 * 1921 * @param netId network id of the network 1922 * @return {@code true} if the operation succeeds, {@code false} otherwise 1923 */ 1924 public boolean syncDisableNetwork(AsyncChannel channel, int netId) { 1925 Message resultMsg = channel.sendMessageSynchronously(WifiManager.DISABLE_NETWORK, netId); 1926 boolean result = (resultMsg.arg1 != WifiManager.DISABLE_NETWORK_FAILED); 1927 resultMsg.recycle(); 1928 return result; 1929 } 1930 1931 /** 1932 * Retrieves a WPS-NFC configuration token for the specified network 1933 * 1934 * @return a hex string representation of the WPS-NFC configuration token 1935 */ 1936 public String syncGetWpsNfcConfigurationToken(int netId) { 1937 return mWifiNative.getNfcWpsConfigurationToken(netId); 1938 } 1939 1940 public void enableRssiPolling(boolean enabled) { 1941 sendMessage(CMD_ENABLE_RSSI_POLL, enabled ? 1 : 0, 0); 1942 } 1943 1944 /** 1945 * Start filtering Multicast v4 packets 1946 */ 1947 public void startFilteringMulticastPackets() { 1948 mIpManager.setMulticastFilter(true); 1949 } 1950 1951 /** 1952 * Stop filtering Multicast v4 packets 1953 */ 1954 public void stopFilteringMulticastPackets() { 1955 mIpManager.setMulticastFilter(false); 1956 } 1957 1958 /** 1959 * Set high performance mode of operation. 1960 * Enabling would set active power mode and disable suspend optimizations; 1961 * disabling would set auto power mode and enable suspend optimizations 1962 * 1963 * @param enable true if enable, false otherwise 1964 */ 1965 public void setHighPerfModeEnabled(boolean enable) { 1966 sendMessage(CMD_SET_HIGH_PERF_MODE, enable ? 1 : 0, 0); 1967 } 1968 1969 1970 /** 1971 * reset cached SIM credential data 1972 */ 1973 public synchronized void resetSimAuthNetworks(boolean simPresent) { 1974 sendMessage(CMD_RESET_SIM_NETWORKS, simPresent ? 1 : 0); 1975 } 1976 1977 /** 1978 * Get Network object of current wifi network 1979 * @return Network object of current wifi network 1980 */ 1981 public Network getCurrentNetwork() { 1982 if (mNetworkAgent != null) { 1983 return new Network(mNetworkAgent.netId); 1984 } else { 1985 return null; 1986 } 1987 } 1988 1989 /** 1990 * Enable TDLS for a specific MAC address 1991 */ 1992 public void enableTdls(String remoteMacAddress, boolean enable) { 1993 int enabler = enable ? 1 : 0; 1994 sendMessage(CMD_ENABLE_TDLS, enabler, 0, remoteMacAddress); 1995 } 1996 1997 /** 1998 * Send a message indicating bluetooth adapter connection state changed 1999 */ 2000 public void sendBluetoothAdapterStateChange(int state) { 2001 sendMessage(CMD_BLUETOOTH_ADAPTER_STATE_CHANGE, state, 0); 2002 } 2003 2004 /** 2005 * Send a message indicating a package has been uninstalled. 2006 */ 2007 public void removeAppConfigs(String packageName, int uid) { 2008 // Build partial AppInfo manually - package may not exist in database any more 2009 ApplicationInfo ai = new ApplicationInfo(); 2010 ai.packageName = packageName; 2011 ai.uid = uid; 2012 sendMessage(CMD_REMOVE_APP_CONFIGURATIONS, ai); 2013 } 2014 2015 /** 2016 * Send a message indicating a user has been removed. 2017 */ 2018 public void removeUserConfigs(int userId) { 2019 sendMessage(CMD_REMOVE_USER_CONFIGURATIONS, userId); 2020 } 2021 2022 /** 2023 * Save configuration on supplicant 2024 * 2025 * @return {@code true} if the operation succeeds, {@code false} otherwise 2026 * <p/> 2027 * TODO: deprecate this 2028 */ 2029 public boolean syncSaveConfig(AsyncChannel channel) { 2030 Message resultMsg = channel.sendMessageSynchronously(CMD_SAVE_CONFIG); 2031 boolean result = (resultMsg.arg1 != FAILURE); 2032 resultMsg.recycle(); 2033 return result; 2034 } 2035 2036 public void updateBatteryWorkSource(WorkSource newSource) { 2037 synchronized (mRunningWifiUids) { 2038 try { 2039 if (newSource != null) { 2040 mRunningWifiUids.set(newSource); 2041 } 2042 if (mIsRunning) { 2043 if (mReportedRunning) { 2044 // If the work source has changed since last time, need 2045 // to remove old work from battery stats. 2046 if (mLastRunningWifiUids.diff(mRunningWifiUids)) { 2047 mBatteryStats.noteWifiRunningChanged(mLastRunningWifiUids, 2048 mRunningWifiUids); 2049 mLastRunningWifiUids.set(mRunningWifiUids); 2050 } 2051 } else { 2052 // Now being started, report it. 2053 mBatteryStats.noteWifiRunning(mRunningWifiUids); 2054 mLastRunningWifiUids.set(mRunningWifiUids); 2055 mReportedRunning = true; 2056 } 2057 } else { 2058 if (mReportedRunning) { 2059 // Last reported we were running, time to stop. 2060 mBatteryStats.noteWifiStopped(mLastRunningWifiUids); 2061 mLastRunningWifiUids.clear(); 2062 mReportedRunning = false; 2063 } 2064 } 2065 mWakeLock.setWorkSource(newSource); 2066 } catch (RemoteException ignore) { 2067 } 2068 } 2069 } 2070 2071 public void dumpIpManager(FileDescriptor fd, PrintWriter pw, String[] args) { 2072 mIpManager.dump(fd, pw, args); 2073 } 2074 2075 @Override 2076 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 2077 if (args.length > 1 && WifiMetrics.PROTO_DUMP_ARG.equals(args[0]) 2078 && WifiMetrics.CLEAN_DUMP_ARG.equals(args[1])) { 2079 // Dump only wifi metrics serialized proto bytes (base64) 2080 updateWifiMetrics(); 2081 mWifiMetrics.dump(fd, pw, args); 2082 return; 2083 } 2084 super.dump(fd, pw, args); 2085 mSupplicantStateTracker.dump(fd, pw, args); 2086 pw.println("mLinkProperties " + mLinkProperties); 2087 pw.println("mWifiInfo " + mWifiInfo); 2088 pw.println("mDhcpResults " + mDhcpResults); 2089 pw.println("mNetworkInfo " + mNetworkInfo); 2090 pw.println("mLastSignalLevel " + mLastSignalLevel); 2091 pw.println("mLastBssid " + mLastBssid); 2092 pw.println("mLastNetworkId " + mLastNetworkId); 2093 pw.println("mOperationalMode " + mOperationalMode); 2094 pw.println("mUserWantsSuspendOpt " + mUserWantsSuspendOpt); 2095 pw.println("mSuspendOptNeedsDisabled " + mSuspendOptNeedsDisabled); 2096 pw.println("Supplicant status " + mWifiNative.status(true)); 2097 pw.println("mSystemSupportsFastBssTransition " 2098 + mWifiSupplicantControl.getSystemSupportsFastBssTransition()); 2099 if (mCountryCode.getCountryCodeSentToDriver() != null) { 2100 pw.println("CountryCode sent to driver " + mCountryCode.getCountryCodeSentToDriver()); 2101 } else { 2102 if (mCountryCode.getCountryCode() != null) { 2103 pw.println("CountryCode: " + 2104 mCountryCode.getCountryCode() + " was not sent to driver"); 2105 } else { 2106 pw.println("CountryCode was not initialized"); 2107 } 2108 } 2109 if (mNetworkFactory != null) { 2110 mNetworkFactory.dump(fd, pw, args); 2111 } else { 2112 pw.println("mNetworkFactory is not initialized"); 2113 } 2114 2115 if (mUntrustedNetworkFactory != null) { 2116 mUntrustedNetworkFactory.dump(fd, pw, args); 2117 } else { 2118 pw.println("mUntrustedNetworkFactory is not initialized"); 2119 } 2120 pw.println("Wlan Wake Reasons:" + mWifiNative.getWlanWakeReasonCount()); 2121 pw.println(); 2122 updateWifiMetrics(); 2123 mWifiMetrics.dump(fd, pw, args); 2124 pw.println(); 2125 2126 mWifiConfigManager.dump(fd, pw, args); 2127 pw.println(); 2128 mWifiDiagnostics.captureBugReportData(WifiDiagnostics.REPORT_REASON_USER_ACTION); 2129 mWifiDiagnostics.dump(fd, pw, args); 2130 dumpIpManager(fd, pw, args); 2131 mWifiNetworkSelector.dump(fd, pw, args); 2132 } 2133 2134 public void handleUserSwitch(int userId) { 2135 sendMessage(CMD_USER_SWITCH, userId); 2136 } 2137 2138 public void handleUserUnlock(int userId) { 2139 sendMessage(CMD_USER_UNLOCK, userId); 2140 } 2141 2142 public void handleUserStop(int userId) { 2143 sendMessage(CMD_USER_STOP, userId); 2144 } 2145 2146 /** 2147 * ****************************************************** 2148 * Internal private functions 2149 * ****************************************************** 2150 */ 2151 2152 private void logStateAndMessage(Message message, State state) { 2153 messageHandlingStatus = 0; 2154 if (mVerboseLoggingEnabled) { 2155 logd(" " + state.getClass().getSimpleName() + " " + getLogRecString(message)); 2156 } 2157 } 2158 2159 /** 2160 * helper, prints the milli time since boot wi and w/o suspended time 2161 */ 2162 String printTime() { 2163 StringBuilder sb = new StringBuilder(); 2164 sb.append(" rt=").append(mClock.getUptimeSinceBootMillis()); 2165 sb.append("/").append(mClock.getElapsedSinceBootMillis()); 2166 return sb.toString(); 2167 } 2168 2169 /** 2170 * Return the additional string to be logged by LogRec, default 2171 * 2172 * @param msg that was processed 2173 * @return information to be logged as a String 2174 */ 2175 @Override 2176 protected String getLogRecString(Message msg) { 2177 WifiConfiguration config; 2178 Long now; 2179 String report; 2180 String key; 2181 StringBuilder sb = new StringBuilder(); 2182 if (mScreenOn) { 2183 sb.append("!"); 2184 } 2185 if (messageHandlingStatus != MESSAGE_HANDLING_STATUS_UNKNOWN) { 2186 sb.append("(").append(messageHandlingStatus).append(")"); 2187 } 2188 sb.append(smToString(msg)); 2189 if (msg.sendingUid > 0 && msg.sendingUid != Process.WIFI_UID) { 2190 sb.append(" uid=" + msg.sendingUid); 2191 } 2192 sb.append(" ").append(printTime()); 2193 switch (msg.what) { 2194 case CMD_START_SCAN: 2195 now = mClock.getWallClockMillis(); 2196 sb.append(" "); 2197 sb.append(Integer.toString(msg.arg1)); 2198 sb.append(" "); 2199 sb.append(Integer.toString(msg.arg2)); 2200 sb.append(" ic="); 2201 sb.append(Integer.toString(sScanAlarmIntentCount)); 2202 if (msg.obj != null) { 2203 Bundle bundle = (Bundle) msg.obj; 2204 Long request = bundle.getLong(SCAN_REQUEST_TIME, 0); 2205 if (request != 0) { 2206 sb.append(" proc(ms):").append(now - request); 2207 } 2208 } 2209 if (mIsScanOngoing) sb.append(" onGoing"); 2210 if (mIsFullScanOngoing) sb.append(" full"); 2211 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2212 sb.append(" f=").append(mWifiInfo.getFrequency()); 2213 sb.append(" sc=").append(mWifiInfo.score); 2214 sb.append(" link=").append(mWifiInfo.getLinkSpeed()); 2215 sb.append(String.format(" tx=%.1f,", mWifiInfo.txSuccessRate)); 2216 sb.append(String.format(" %.1f,", mWifiInfo.txRetriesRate)); 2217 sb.append(String.format(" %.1f ", mWifiInfo.txBadRate)); 2218 sb.append(String.format(" rx=%.1f", mWifiInfo.rxSuccessRate)); 2219 if (lastScanFreqs != null) { 2220 sb.append(" list="); 2221 for(int freq : lastScanFreqs) { 2222 sb.append(freq).append(","); 2223 } 2224 } 2225 report = reportOnTime(); 2226 if (report != null) { 2227 sb.append(" ").append(report); 2228 } 2229 break; 2230 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 2231 sb.append(" "); 2232 sb.append(Integer.toString(msg.arg1)); 2233 sb.append(" "); 2234 sb.append(Integer.toString(msg.arg2)); 2235 StateChangeResult stateChangeResult = (StateChangeResult) msg.obj; 2236 if (stateChangeResult != null) { 2237 sb.append(stateChangeResult.toString()); 2238 } 2239 break; 2240 case WifiManager.SAVE_NETWORK: 2241 sb.append(" "); 2242 sb.append(Integer.toString(msg.arg1)); 2243 sb.append(" "); 2244 sb.append(Integer.toString(msg.arg2)); 2245 config = (WifiConfiguration) msg.obj; 2246 if (config != null) { 2247 sb.append(" ").append(config.configKey()); 2248 sb.append(" nid=").append(config.networkId); 2249 if (config.hiddenSSID) { 2250 sb.append(" hidden"); 2251 } 2252 if (config.preSharedKey != null 2253 && !config.preSharedKey.equals("*")) { 2254 sb.append(" hasPSK"); 2255 } 2256 if (config.ephemeral) { 2257 sb.append(" ephemeral"); 2258 } 2259 if (config.selfAdded) { 2260 sb.append(" selfAdded"); 2261 } 2262 sb.append(" cuid=").append(config.creatorUid); 2263 sb.append(" suid=").append(config.lastUpdateUid); 2264 } 2265 break; 2266 case WifiManager.FORGET_NETWORK: 2267 sb.append(" "); 2268 sb.append(Integer.toString(msg.arg1)); 2269 sb.append(" "); 2270 sb.append(Integer.toString(msg.arg2)); 2271 config = (WifiConfiguration) msg.obj; 2272 if (config != null) { 2273 sb.append(" ").append(config.configKey()); 2274 sb.append(" nid=").append(config.networkId); 2275 if (config.hiddenSSID) { 2276 sb.append(" hidden"); 2277 } 2278 if (config.preSharedKey != null) { 2279 sb.append(" hasPSK"); 2280 } 2281 if (config.ephemeral) { 2282 sb.append(" ephemeral"); 2283 } 2284 if (config.selfAdded) { 2285 sb.append(" selfAdded"); 2286 } 2287 sb.append(" cuid=").append(config.creatorUid); 2288 sb.append(" suid=").append(config.lastUpdateUid); 2289 WifiConfiguration.NetworkSelectionStatus netWorkSelectionStatus = 2290 config.getNetworkSelectionStatus(); 2291 sb.append(" ajst=").append( 2292 netWorkSelectionStatus.getNetworkStatusString()); 2293 } 2294 break; 2295 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 2296 sb.append(" "); 2297 sb.append(Integer.toString(msg.arg1)); 2298 sb.append(" "); 2299 sb.append(Integer.toString(msg.arg2)); 2300 String bssid = (String) msg.obj; 2301 if (bssid != null && bssid.length() > 0) { 2302 sb.append(" "); 2303 sb.append(bssid); 2304 } 2305 sb.append(" blacklist=" + Boolean.toString(didBlackListBSSID)); 2306 break; 2307 case WifiMonitor.SCAN_RESULTS_EVENT: 2308 sb.append(" "); 2309 sb.append(Integer.toString(msg.arg1)); 2310 sb.append(" "); 2311 sb.append(Integer.toString(msg.arg2)); 2312 if (mScanResults != null) { 2313 sb.append(" found="); 2314 sb.append(mScanResults.size()); 2315 } 2316 sb.append(" known=").append(mNumScanResultsKnown); 2317 sb.append(" got=").append(mNumScanResultsReturned); 2318 sb.append(String.format(" bcn=%d", mRunningBeaconCount)); 2319 sb.append(String.format(" con=%d", mConnectionReqCount)); 2320 sb.append(String.format(" untrustedcn=%d", mUntrustedReqCount)); 2321 key = mWifiConfigManager.getLastSelectedNetworkConfigKey(); 2322 if (key != null) { 2323 sb.append(" last=").append(key); 2324 } 2325 break; 2326 case WifiMonitor.SCAN_FAILED_EVENT: 2327 break; 2328 case WifiMonitor.NETWORK_CONNECTION_EVENT: 2329 sb.append(" "); 2330 sb.append(Integer.toString(msg.arg1)); 2331 sb.append(" "); 2332 sb.append(Integer.toString(msg.arg2)); 2333 sb.append(" ").append(mLastBssid); 2334 sb.append(" nid=").append(mLastNetworkId); 2335 config = getCurrentWifiConfiguration(); 2336 if (config != null) { 2337 sb.append(" ").append(config.configKey()); 2338 } 2339 key = mWifiConfigManager.getLastSelectedNetworkConfigKey(); 2340 if (key != null) { 2341 sb.append(" last=").append(key); 2342 } 2343 break; 2344 case CMD_TARGET_BSSID: 2345 case CMD_ASSOCIATED_BSSID: 2346 sb.append(" "); 2347 sb.append(Integer.toString(msg.arg1)); 2348 sb.append(" "); 2349 sb.append(Integer.toString(msg.arg2)); 2350 if (msg.obj != null) { 2351 sb.append(" BSSID=").append((String) msg.obj); 2352 } 2353 if (mTargetRoamBSSID != null) { 2354 sb.append(" Target=").append(mTargetRoamBSSID); 2355 } 2356 sb.append(" roam=").append(Boolean.toString(mAutoRoaming)); 2357 break; 2358 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 2359 if (msg.obj != null) { 2360 sb.append(" ").append((String) msg.obj); 2361 } 2362 sb.append(" nid=").append(msg.arg1); 2363 sb.append(" reason=").append(msg.arg2); 2364 if (mLastBssid != null) { 2365 sb.append(" lastbssid=").append(mLastBssid); 2366 } 2367 if (mWifiInfo.getFrequency() != -1) { 2368 sb.append(" freq=").append(mWifiInfo.getFrequency()); 2369 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2370 } 2371 if (isLinkDebouncing()) { 2372 sb.append(" debounce"); 2373 } 2374 break; 2375 case WifiMonitor.SSID_TEMP_DISABLED: 2376 case WifiMonitor.SSID_REENABLED: 2377 sb.append(" nid=").append(msg.arg1); 2378 if (msg.obj != null) { 2379 sb.append(" ").append((String) msg.obj); 2380 } 2381 config = getCurrentWifiConfiguration(); 2382 if (config != null) { 2383 WifiConfiguration.NetworkSelectionStatus netWorkSelectionStatus = 2384 config.getNetworkSelectionStatus(); 2385 sb.append(" cur=").append(config.configKey()); 2386 sb.append(" ajst=").append(netWorkSelectionStatus.getNetworkStatusString()); 2387 if (config.selfAdded) { 2388 sb.append(" selfAdded"); 2389 } 2390 if (config.status != 0) { 2391 sb.append(" st=").append(config.status); 2392 sb.append(" rs=").append( 2393 netWorkSelectionStatus.getNetworkDisableReasonString()); 2394 } 2395 if (config.lastConnected != 0) { 2396 now = mClock.getWallClockMillis(); 2397 sb.append(" lastconn=").append(now - config.lastConnected).append("(ms)"); 2398 } 2399 if (mLastBssid != null) { 2400 sb.append(" lastbssid=").append(mLastBssid); 2401 } 2402 if (mWifiInfo.getFrequency() != -1) { 2403 sb.append(" freq=").append(mWifiInfo.getFrequency()); 2404 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2405 sb.append(" bssid=").append(mWifiInfo.getBSSID()); 2406 } 2407 } 2408 break; 2409 case CMD_RSSI_POLL: 2410 case CMD_UNWANTED_NETWORK: 2411 case WifiManager.RSSI_PKTCNT_FETCH: 2412 sb.append(" "); 2413 sb.append(Integer.toString(msg.arg1)); 2414 sb.append(" "); 2415 sb.append(Integer.toString(msg.arg2)); 2416 if (mWifiInfo.getSSID() != null) 2417 if (mWifiInfo.getSSID() != null) 2418 sb.append(" ").append(mWifiInfo.getSSID()); 2419 if (mWifiInfo.getBSSID() != null) 2420 sb.append(" ").append(mWifiInfo.getBSSID()); 2421 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2422 sb.append(" f=").append(mWifiInfo.getFrequency()); 2423 sb.append(" sc=").append(mWifiInfo.score); 2424 sb.append(" link=").append(mWifiInfo.getLinkSpeed()); 2425 sb.append(String.format(" tx=%.1f,", mWifiInfo.txSuccessRate)); 2426 sb.append(String.format(" %.1f,", mWifiInfo.txRetriesRate)); 2427 sb.append(String.format(" %.1f ", mWifiInfo.txBadRate)); 2428 sb.append(String.format(" rx=%.1f", mWifiInfo.rxSuccessRate)); 2429 sb.append(String.format(" bcn=%d", mRunningBeaconCount)); 2430 report = reportOnTime(); 2431 if (report != null) { 2432 sb.append(" ").append(report); 2433 } 2434 if (mWifiScoreReport.isLastReportValid()) { 2435 sb.append(mWifiScoreReport.getLastReport()); 2436 } 2437 break; 2438 case CMD_START_CONNECT: 2439 case WifiManager.CONNECT_NETWORK: 2440 sb.append(" "); 2441 sb.append(Integer.toString(msg.arg1)); 2442 sb.append(" "); 2443 sb.append(Integer.toString(msg.arg2)); 2444 config = mWifiConfigManager.getConfiguredNetwork(msg.arg1); 2445 if (config != null) { 2446 sb.append(" ").append(config.configKey()); 2447 if (config.visibility != null) { 2448 sb.append(" ").append(config.visibility.toString()); 2449 } 2450 } 2451 if (mTargetRoamBSSID != null) { 2452 sb.append(" ").append(mTargetRoamBSSID); 2453 } 2454 sb.append(" roam=").append(Boolean.toString(mAutoRoaming)); 2455 config = getCurrentWifiConfiguration(); 2456 if (config != null) { 2457 sb.append(config.configKey()); 2458 if (config.visibility != null) { 2459 sb.append(" ").append(config.visibility.toString()); 2460 } 2461 } 2462 break; 2463 case CMD_START_ROAM: 2464 sb.append(" "); 2465 sb.append(Integer.toString(msg.arg1)); 2466 sb.append(" "); 2467 sb.append(Integer.toString(msg.arg2)); 2468 ScanResult result = (ScanResult) msg.obj; 2469 if (result != null) { 2470 now = mClock.getWallClockMillis(); 2471 sb.append(" bssid=").append(result.BSSID); 2472 sb.append(" rssi=").append(result.level); 2473 sb.append(" freq=").append(result.frequency); 2474 if (result.seen > 0 && result.seen < now) { 2475 sb.append(" seen=").append(now - result.seen); 2476 } else { 2477 // Somehow the timestamp for this scan result is inconsistent 2478 sb.append(" !seen=").append(result.seen); 2479 } 2480 } 2481 if (mTargetRoamBSSID != null) { 2482 sb.append(" ").append(mTargetRoamBSSID); 2483 } 2484 sb.append(" roam=").append(Boolean.toString(mAutoRoaming)); 2485 sb.append(" fail count=").append(Integer.toString(mRoamFailCount)); 2486 break; 2487 case CMD_ADD_OR_UPDATE_NETWORK: 2488 sb.append(" "); 2489 sb.append(Integer.toString(msg.arg1)); 2490 sb.append(" "); 2491 sb.append(Integer.toString(msg.arg2)); 2492 if (msg.obj != null) { 2493 config = (WifiConfiguration) msg.obj; 2494 sb.append(" ").append(config.configKey()); 2495 sb.append(" prio=").append(config.priority); 2496 sb.append(" status=").append(config.status); 2497 if (config.BSSID != null) { 2498 sb.append(" ").append(config.BSSID); 2499 } 2500 WifiConfiguration curConfig = getCurrentWifiConfiguration(); 2501 if (curConfig != null) { 2502 if (curConfig.configKey().equals(config.configKey())) { 2503 sb.append(" is current"); 2504 } else { 2505 sb.append(" current=").append(curConfig.configKey()); 2506 sb.append(" prio=").append(curConfig.priority); 2507 sb.append(" status=").append(curConfig.status); 2508 } 2509 } 2510 } 2511 break; 2512 case WifiManager.DISABLE_NETWORK: 2513 case CMD_ENABLE_NETWORK: 2514 sb.append(" "); 2515 sb.append(Integer.toString(msg.arg1)); 2516 sb.append(" "); 2517 sb.append(Integer.toString(msg.arg2)); 2518 key = mWifiConfigManager.getLastSelectedNetworkConfigKey(); 2519 if (key != null) { 2520 sb.append(" last=").append(key); 2521 } 2522 config = mWifiConfigManager.getConfiguredNetwork(msg.arg1); 2523 if (config != null && (key == null || !config.configKey().equals(key))) { 2524 sb.append(" target=").append(key); 2525 } 2526 break; 2527 case CMD_GET_CONFIGURED_NETWORKS: 2528 sb.append(" "); 2529 sb.append(Integer.toString(msg.arg1)); 2530 sb.append(" "); 2531 sb.append(Integer.toString(msg.arg2)); 2532 sb.append(" num=").append(mWifiConfigManager.getConfiguredNetworks().size()); 2533 break; 2534 case DhcpClient.CMD_PRE_DHCP_ACTION: 2535 sb.append(" "); 2536 sb.append(Integer.toString(msg.arg1)); 2537 sb.append(" "); 2538 sb.append(Integer.toString(msg.arg2)); 2539 sb.append(" txpkts=").append(mWifiInfo.txSuccess); 2540 sb.append(",").append(mWifiInfo.txBad); 2541 sb.append(",").append(mWifiInfo.txRetries); 2542 break; 2543 case DhcpClient.CMD_POST_DHCP_ACTION: 2544 sb.append(" "); 2545 sb.append(Integer.toString(msg.arg1)); 2546 sb.append(" "); 2547 sb.append(Integer.toString(msg.arg2)); 2548 if (msg.arg1 == DhcpClient.DHCP_SUCCESS) { 2549 sb.append(" OK "); 2550 } else if (msg.arg1 == DhcpClient.DHCP_FAILURE) { 2551 sb.append(" FAIL "); 2552 } 2553 if (mLinkProperties != null) { 2554 sb.append(" "); 2555 sb.append(getLinkPropertiesSummary(mLinkProperties)); 2556 } 2557 break; 2558 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 2559 sb.append(" "); 2560 sb.append(Integer.toString(msg.arg1)); 2561 sb.append(" "); 2562 sb.append(Integer.toString(msg.arg2)); 2563 if (msg.obj != null) { 2564 NetworkInfo info = (NetworkInfo) msg.obj; 2565 NetworkInfo.State state = info.getState(); 2566 NetworkInfo.DetailedState detailedState = info.getDetailedState(); 2567 if (state != null) { 2568 sb.append(" st=").append(state); 2569 } 2570 if (detailedState != null) { 2571 sb.append("/").append(detailedState); 2572 } 2573 } 2574 break; 2575 case CMD_IP_CONFIGURATION_LOST: 2576 int count = -1; 2577 WifiConfiguration c = getCurrentWifiConfiguration(); 2578 if (c != null) { 2579 count = c.getNetworkSelectionStatus().getDisableReasonCounter( 2580 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 2581 } 2582 sb.append(" "); 2583 sb.append(Integer.toString(msg.arg1)); 2584 sb.append(" "); 2585 sb.append(Integer.toString(msg.arg2)); 2586 sb.append(" failures: "); 2587 sb.append(Integer.toString(count)); 2588 sb.append("/"); 2589 sb.append(Integer.toString(mFacade.getIntegerSetting( 2590 mContext, Settings.Global.WIFI_MAX_DHCP_RETRY_COUNT, 0))); 2591 if (mWifiInfo.getBSSID() != null) { 2592 sb.append(" ").append(mWifiInfo.getBSSID()); 2593 } 2594 sb.append(String.format(" bcn=%d", mRunningBeaconCount)); 2595 break; 2596 case CMD_UPDATE_LINKPROPERTIES: 2597 sb.append(" "); 2598 sb.append(Integer.toString(msg.arg1)); 2599 sb.append(" "); 2600 sb.append(Integer.toString(msg.arg2)); 2601 if (mLinkProperties != null) { 2602 sb.append(" "); 2603 sb.append(getLinkPropertiesSummary(mLinkProperties)); 2604 } 2605 break; 2606 case CMD_IP_REACHABILITY_LOST: 2607 if (msg.obj != null) { 2608 sb.append(" ").append((String) msg.obj); 2609 } 2610 break; 2611 case CMD_INSTALL_PACKET_FILTER: 2612 sb.append(" len=" + ((byte[])msg.obj).length); 2613 break; 2614 case CMD_SET_FALLBACK_PACKET_FILTERING: 2615 sb.append(" enabled=" + (boolean)msg.obj); 2616 break; 2617 case CMD_ROAM_WATCHDOG_TIMER: 2618 sb.append(" "); 2619 sb.append(Integer.toString(msg.arg1)); 2620 sb.append(" "); 2621 sb.append(Integer.toString(msg.arg2)); 2622 sb.append(" cur=").append(roamWatchdogCount); 2623 break; 2624 case CMD_DISCONNECTING_WATCHDOG_TIMER: 2625 sb.append(" "); 2626 sb.append(Integer.toString(msg.arg1)); 2627 sb.append(" "); 2628 sb.append(Integer.toString(msg.arg2)); 2629 sb.append(" cur=").append(disconnectingWatchdogCount); 2630 break; 2631 case CMD_START_RSSI_MONITORING_OFFLOAD: 2632 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 2633 case CMD_RSSI_THRESHOLD_BREACH: 2634 sb.append(" rssi="); 2635 sb.append(Integer.toString(msg.arg1)); 2636 sb.append(" thresholds="); 2637 sb.append(Arrays.toString(mRssiRanges)); 2638 break; 2639 case CMD_USER_SWITCH: 2640 sb.append(" userId="); 2641 sb.append(Integer.toString(msg.arg1)); 2642 break; 2643 case CMD_IPV4_PROVISIONING_SUCCESS: 2644 sb.append(" "); 2645 if (msg.arg1 == DhcpClient.DHCP_SUCCESS) { 2646 sb.append("DHCP_OK"); 2647 } else if (msg.arg1 == CMD_STATIC_IP_SUCCESS) { 2648 sb.append("STATIC_OK"); 2649 } else { 2650 sb.append(Integer.toString(msg.arg1)); 2651 } 2652 break; 2653 case CMD_IPV4_PROVISIONING_FAILURE: 2654 sb.append(" "); 2655 if (msg.arg1 == DhcpClient.DHCP_FAILURE) { 2656 sb.append("DHCP_FAIL"); 2657 } else if (msg.arg1 == CMD_STATIC_IP_FAILURE) { 2658 sb.append("STATIC_FAIL"); 2659 } else { 2660 sb.append(Integer.toString(msg.arg1)); 2661 } 2662 break; 2663 default: 2664 sb.append(" "); 2665 sb.append(Integer.toString(msg.arg1)); 2666 sb.append(" "); 2667 sb.append(Integer.toString(msg.arg2)); 2668 break; 2669 } 2670 2671 return sb.toString(); 2672 } 2673 2674 private void handleScreenStateChanged(boolean screenOn) { 2675 mScreenOn = screenOn; 2676 if (mVerboseLoggingEnabled) { 2677 logd(" handleScreenStateChanged Enter: screenOn=" + screenOn 2678 + " mUserWantsSuspendOpt=" + mUserWantsSuspendOpt 2679 + " state " + getCurrentState().getName() 2680 + " suppState:" + mSupplicantStateTracker.getSupplicantStateName()); 2681 } 2682 enableRssiPolling(screenOn); 2683 if (mUserWantsSuspendOpt.get()) { 2684 int shouldReleaseWakeLock = 0; 2685 if (screenOn) { 2686 sendMessage(CMD_SET_SUSPEND_OPT_ENABLED, 0, shouldReleaseWakeLock); 2687 } else { 2688 if (isConnected()) { 2689 // Allow 2s for suspend optimizations to be set 2690 mSuspendWakeLock.acquire(2000); 2691 shouldReleaseWakeLock = 1; 2692 } 2693 sendMessage(CMD_SET_SUSPEND_OPT_ENABLED, 1, shouldReleaseWakeLock); 2694 } 2695 } 2696 2697 getWifiLinkLayerStats(); 2698 mOnTimeScreenStateChange = mOnTime; 2699 lastScreenStateChangeTimeStamp = lastLinkLayerStatsUpdate; 2700 2701 mWifiMetrics.setScreenState(screenOn); 2702 2703 if (mWifiConnectivityManager != null) { 2704 mWifiConnectivityManager.handleScreenStateChanged(screenOn); 2705 } 2706 2707 if (mVerboseLoggingEnabled) log("handleScreenStateChanged Exit: " + screenOn); 2708 } 2709 2710 private void checkAndSetConnectivityInstance() { 2711 if (mCm == null) { 2712 mCm = (ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 2713 } 2714 } 2715 2716 private void setSuspendOptimizationsNative(int reason, boolean enabled) { 2717 if (mVerboseLoggingEnabled) { 2718 log("setSuspendOptimizationsNative: " + reason + " " + enabled 2719 + " -want " + mUserWantsSuspendOpt.get() 2720 + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 2721 + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() 2722 + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() 2723 + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); 2724 } 2725 //mWifiNative.setSuspendOptimizations(enabled); 2726 2727 if (enabled) { 2728 mSuspendOptNeedsDisabled &= ~reason; 2729 /* None of dhcp, screen or highperf need it disabled and user wants it enabled */ 2730 if (mSuspendOptNeedsDisabled == 0 && mUserWantsSuspendOpt.get()) { 2731 if (mVerboseLoggingEnabled) { 2732 log("setSuspendOptimizationsNative do it " + reason + " " + enabled 2733 + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 2734 + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() 2735 + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() 2736 + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); 2737 } 2738 mWifiNative.setSuspendOptimizations(true); 2739 } 2740 } else { 2741 mSuspendOptNeedsDisabled |= reason; 2742 mWifiNative.setSuspendOptimizations(false); 2743 } 2744 } 2745 2746 private void setSuspendOptimizations(int reason, boolean enabled) { 2747 if (mVerboseLoggingEnabled) log("setSuspendOptimizations: " + reason + " " + enabled); 2748 if (enabled) { 2749 mSuspendOptNeedsDisabled &= ~reason; 2750 } else { 2751 mSuspendOptNeedsDisabled |= reason; 2752 } 2753 if (mVerboseLoggingEnabled) log("mSuspendOptNeedsDisabled " + mSuspendOptNeedsDisabled); 2754 } 2755 2756 private void setWifiState(int wifiState) { 2757 final int previousWifiState = mWifiState.get(); 2758 2759 try { 2760 if (wifiState == WIFI_STATE_ENABLED) { 2761 mBatteryStats.noteWifiOn(); 2762 } else if (wifiState == WIFI_STATE_DISABLED) { 2763 mBatteryStats.noteWifiOff(); 2764 } 2765 } catch (RemoteException e) { 2766 loge("Failed to note battery stats in wifi"); 2767 } 2768 2769 mWifiState.set(wifiState); 2770 2771 if (mVerboseLoggingEnabled) log("setWifiState: " + syncGetWifiStateByName()); 2772 2773 final Intent intent = new Intent(WifiManager.WIFI_STATE_CHANGED_ACTION); 2774 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2775 intent.putExtra(WifiManager.EXTRA_WIFI_STATE, wifiState); 2776 intent.putExtra(WifiManager.EXTRA_PREVIOUS_WIFI_STATE, previousWifiState); 2777 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2778 } 2779 2780 private void setWifiApState(int wifiApState, int reason) { 2781 final int previousWifiApState = mWifiApState.get(); 2782 2783 try { 2784 if (wifiApState == WIFI_AP_STATE_ENABLED) { 2785 mBatteryStats.noteWifiOn(); 2786 } else if (wifiApState == WIFI_AP_STATE_DISABLED) { 2787 mBatteryStats.noteWifiOff(); 2788 } 2789 } catch (RemoteException e) { 2790 loge("Failed to note battery stats in wifi"); 2791 } 2792 2793 // Update state 2794 mWifiApState.set(wifiApState); 2795 2796 if (mVerboseLoggingEnabled) log("setWifiApState: " + syncGetWifiApStateByName()); 2797 2798 final Intent intent = new Intent(WifiManager.WIFI_AP_STATE_CHANGED_ACTION); 2799 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2800 intent.putExtra(WifiManager.EXTRA_WIFI_AP_STATE, wifiApState); 2801 intent.putExtra(WifiManager.EXTRA_PREVIOUS_WIFI_AP_STATE, previousWifiApState); 2802 if (wifiApState == WifiManager.WIFI_AP_STATE_FAILED) { 2803 //only set reason number when softAP start failed 2804 intent.putExtra(WifiManager.EXTRA_WIFI_AP_FAILURE_REASON, reason); 2805 } 2806 2807 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2808 } 2809 2810 private void setScanResults() { 2811 mNumScanResultsKnown = 0; 2812 mNumScanResultsReturned = 0; 2813 2814 ArrayList<ScanDetail> scanResults = mWifiNative.getScanResults(); 2815 2816 if (scanResults.isEmpty()) { 2817 mScanResults = new ArrayList<>(); 2818 return; 2819 } 2820 2821 // TODO(b/31065385): mWifiConfigManager.trimANQPCache(false); 2822 2823 boolean connected = mLastBssid != null; 2824 long activeBssid = 0L; 2825 if (connected) { 2826 try { 2827 activeBssid = Utils.parseMac(mLastBssid); 2828 } catch (IllegalArgumentException iae) { 2829 connected = false; 2830 } 2831 } 2832 2833 synchronized (mScanResultsLock) { 2834 mScanResults = scanResults; 2835 mNumScanResultsReturned = mScanResults.size(); 2836 } 2837 2838 if (isLinkDebouncing()) { 2839 // If debouncing, we dont re-select a SSID or BSSID hence 2840 // there is no need to call the network selection code 2841 // in WifiAutoJoinController, instead, 2842 // just try to reconnect to the same SSID by triggering a roam 2843 // The third parameter 1 means roam not from network selection but debouncing 2844 sendMessage(CMD_START_ROAM, mLastNetworkId, 1, null); 2845 } 2846 } 2847 2848 /* 2849 * Fetch RSSI, linkspeed, and frequency on current connection 2850 */ 2851 private void fetchRssiLinkSpeedAndFrequencyNative() { 2852 Integer newRssi = null; 2853 Integer newLinkSpeed = null; 2854 Integer newFrequency = null; 2855 int[] poll_result = null; 2856 try { 2857 poll_result = mClientInterface.signalPoll(); 2858 if (poll_result == null || poll_result.length != 3) { 2859 return; 2860 } 2861 } catch (RemoteException e1) { } 2862 2863 newRssi = poll_result[0]; 2864 newLinkSpeed = poll_result[1]; 2865 newFrequency = poll_result[2]; 2866 2867 if (mVerboseLoggingEnabled) { 2868 logd("fetchRssiLinkSpeedAndFrequencyNative rssi=" + newRssi + 2869 " linkspeed=" + newLinkSpeed + " freq=" + newFrequency); 2870 } 2871 2872 if (newRssi != null && newRssi > WifiInfo.INVALID_RSSI && newRssi < WifiInfo.MAX_RSSI) { 2873 // screen out invalid values 2874 /* some implementations avoid negative values by adding 256 2875 * so we need to adjust for that here. 2876 */ 2877 if (newRssi > 0) newRssi -= 256; 2878 mWifiInfo.setRssi(newRssi); 2879 /* 2880 * Log the rssi poll value in metrics 2881 */ 2882 mWifiMetrics.incrementRssiPollRssiCount(newRssi); 2883 /* 2884 * Rather then sending the raw RSSI out every time it 2885 * changes, we precalculate the signal level that would 2886 * be displayed in the status bar, and only send the 2887 * broadcast if that much more coarse-grained number 2888 * changes. This cuts down greatly on the number of 2889 * broadcasts, at the cost of not informing others 2890 * interested in RSSI of all the changes in signal 2891 * level. 2892 */ 2893 int newSignalLevel = WifiManager.calculateSignalLevel(newRssi, WifiManager.RSSI_LEVELS); 2894 if (newSignalLevel != mLastSignalLevel) { 2895 updateCapabilities(getCurrentWifiConfiguration()); 2896 sendRssiChangeBroadcast(newRssi); 2897 } 2898 mLastSignalLevel = newSignalLevel; 2899 } else { 2900 mWifiInfo.setRssi(WifiInfo.INVALID_RSSI); 2901 updateCapabilities(getCurrentWifiConfiguration()); 2902 } 2903 2904 if (newLinkSpeed != null) { 2905 mWifiInfo.setLinkSpeed(newLinkSpeed); 2906 } 2907 if (newFrequency != null && newFrequency > 0) { 2908 if (ScanResult.is5GHz(newFrequency)) { 2909 mWifiConnectionStatistics.num5GhzConnected++; 2910 } 2911 if (ScanResult.is24GHz(newFrequency)) { 2912 mWifiConnectionStatistics.num24GhzConnected++; 2913 } 2914 mWifiInfo.setFrequency(newFrequency); 2915 } 2916 mWifiConfigManager.updateScanDetailCacheFromWifiInfo(mWifiInfo); 2917 } 2918 2919 // Polling has completed, hence we wont have a score anymore 2920 private void cleanWifiScore() { 2921 mWifiInfo.txBadRate = 0; 2922 mWifiInfo.txSuccessRate = 0; 2923 mWifiInfo.txRetriesRate = 0; 2924 mWifiInfo.rxSuccessRate = 0; 2925 mWifiScoreReport.reset(); 2926 } 2927 2928 /** 2929 * Fetch TX packet counters on current connection 2930 */ 2931 private void fetchPktcntNative(RssiPacketCountInfo info) { 2932 int[] counters = null; 2933 try { 2934 counters = mClientInterface.getPacketCounters(); 2935 if (counters == null || counters.length != 2) { 2936 return; 2937 } 2938 } catch (RemoteException e1) {} 2939 info.txgood = counters[0]; 2940 info.txbad = counters[1]; 2941 } 2942 2943 private void updateLinkProperties(LinkProperties newLp) { 2944 if (mVerboseLoggingEnabled) { 2945 log("Link configuration changed for netId: " + mLastNetworkId 2946 + " old: " + mLinkProperties + " new: " + newLp); 2947 } 2948 // We own this instance of LinkProperties because IpManager passes us a copy. 2949 mLinkProperties = newLp; 2950 if (mNetworkAgent != null) { 2951 mNetworkAgent.sendLinkProperties(mLinkProperties); 2952 } 2953 2954 if (getNetworkDetailedState() == DetailedState.CONNECTED) { 2955 // If anything has changed and we're already connected, send out a notification. 2956 // TODO: Update all callers to use NetworkCallbacks and delete this. 2957 sendLinkConfigurationChangedBroadcast(); 2958 } 2959 2960 if (mVerboseLoggingEnabled) { 2961 StringBuilder sb = new StringBuilder(); 2962 sb.append("updateLinkProperties nid: " + mLastNetworkId); 2963 sb.append(" state: " + getNetworkDetailedState()); 2964 2965 if (mLinkProperties != null) { 2966 sb.append(" "); 2967 sb.append(getLinkPropertiesSummary(mLinkProperties)); 2968 } 2969 logd(sb.toString()); 2970 } 2971 } 2972 2973 /** 2974 * Clears all our link properties. 2975 */ 2976 private void clearLinkProperties() { 2977 // Clear the link properties obtained from DHCP. The only caller of this 2978 // function has already called IpManager#stop(), which clears its state. 2979 synchronized (mDhcpResultsLock) { 2980 if (mDhcpResults != null) { 2981 mDhcpResults.clear(); 2982 } 2983 } 2984 2985 // Now clear the merged link properties. 2986 mLinkProperties.clear(); 2987 if (mNetworkAgent != null) mNetworkAgent.sendLinkProperties(mLinkProperties); 2988 } 2989 2990 /** 2991 * try to update default route MAC address. 2992 */ 2993 private String updateDefaultRouteMacAddress(int timeout) { 2994 String address = null; 2995 for (RouteInfo route : mLinkProperties.getRoutes()) { 2996 if (route.isDefaultRoute() && route.hasGateway()) { 2997 InetAddress gateway = route.getGateway(); 2998 if (gateway instanceof Inet4Address) { 2999 if (mVerboseLoggingEnabled) { 3000 logd("updateDefaultRouteMacAddress found Ipv4 default :" 3001 + gateway.getHostAddress()); 3002 } 3003 address = macAddressFromRoute(gateway.getHostAddress()); 3004 /* The gateway's MAC address is known */ 3005 if ((address == null) && (timeout > 0)) { 3006 boolean reachable = false; 3007 TrafficStats.setThreadStatsTag(TrafficStats.TAG_SYSTEM_PROBE); 3008 try { 3009 reachable = gateway.isReachable(timeout); 3010 } catch (Exception e) { 3011 loge("updateDefaultRouteMacAddress exception reaching :" 3012 + gateway.getHostAddress()); 3013 3014 } finally { 3015 TrafficStats.clearThreadStatsTag(); 3016 if (reachable == true) { 3017 3018 address = macAddressFromRoute(gateway.getHostAddress()); 3019 if (mVerboseLoggingEnabled) { 3020 logd("updateDefaultRouteMacAddress reachable (tried again) :" 3021 + gateway.getHostAddress() + " found " + address); 3022 } 3023 } 3024 } 3025 } 3026 if (address != null) { 3027 mWifiConfigManager.setNetworkDefaultGwMacAddress(mLastNetworkId, address); 3028 } 3029 } 3030 } 3031 } 3032 return address; 3033 } 3034 3035 private void sendRssiChangeBroadcast(final int newRssi) { 3036 try { 3037 mBatteryStats.noteWifiRssiChanged(newRssi); 3038 } catch (RemoteException e) { 3039 // Won't happen. 3040 } 3041 Intent intent = new Intent(WifiManager.RSSI_CHANGED_ACTION); 3042 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3043 intent.putExtra(WifiManager.EXTRA_NEW_RSSI, newRssi); 3044 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 3045 } 3046 3047 private void sendNetworkStateChangeBroadcast(String bssid) { 3048 Intent intent = new Intent(WifiManager.NETWORK_STATE_CHANGED_ACTION); 3049 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3050 intent.putExtra(WifiManager.EXTRA_NETWORK_INFO, new NetworkInfo(mNetworkInfo)); 3051 intent.putExtra(WifiManager.EXTRA_LINK_PROPERTIES, new LinkProperties(mLinkProperties)); 3052 if (bssid != null) 3053 intent.putExtra(WifiManager.EXTRA_BSSID, bssid); 3054 if (mNetworkInfo.getDetailedState() == DetailedState.VERIFYING_POOR_LINK || 3055 mNetworkInfo.getDetailedState() == DetailedState.CONNECTED) { 3056 // We no longer report MAC address to third-parties and our code does 3057 // not rely on this broadcast, so just send the default MAC address. 3058 fetchRssiLinkSpeedAndFrequencyNative(); 3059 WifiInfo sentWifiInfo = new WifiInfo(mWifiInfo); 3060 sentWifiInfo.setMacAddress(WifiInfo.DEFAULT_MAC_ADDRESS); 3061 intent.putExtra(WifiManager.EXTRA_WIFI_INFO, sentWifiInfo); 3062 } 3063 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 3064 } 3065 3066 private WifiInfo getWiFiInfoForUid(int uid) { 3067 if (Binder.getCallingUid() == Process.myUid()) { 3068 return mWifiInfo; 3069 } 3070 3071 WifiInfo result = new WifiInfo(mWifiInfo); 3072 result.setMacAddress(WifiInfo.DEFAULT_MAC_ADDRESS); 3073 3074 IBinder binder = mFacade.getService("package"); 3075 IPackageManager packageManager = IPackageManager.Stub.asInterface(binder); 3076 3077 try { 3078 if (packageManager.checkUidPermission(Manifest.permission.LOCAL_MAC_ADDRESS, 3079 uid) == PackageManager.PERMISSION_GRANTED) { 3080 result.setMacAddress(mWifiInfo.getMacAddress()); 3081 } 3082 } catch (RemoteException e) { 3083 Log.e(TAG, "Error checking receiver permission", e); 3084 } 3085 3086 return result; 3087 } 3088 3089 private void sendLinkConfigurationChangedBroadcast() { 3090 Intent intent = new Intent(WifiManager.LINK_CONFIGURATION_CHANGED_ACTION); 3091 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3092 intent.putExtra(WifiManager.EXTRA_LINK_PROPERTIES, new LinkProperties(mLinkProperties)); 3093 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 3094 } 3095 3096 private void sendSupplicantConnectionChangedBroadcast(boolean connected) { 3097 Intent intent = new Intent(WifiManager.SUPPLICANT_CONNECTION_CHANGE_ACTION); 3098 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3099 intent.putExtra(WifiManager.EXTRA_SUPPLICANT_CONNECTED, connected); 3100 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 3101 } 3102 3103 /** 3104 * Record the detailed state of a network. 3105 * 3106 * @param state the new {@code DetailedState} 3107 */ 3108 private boolean setNetworkDetailedState(NetworkInfo.DetailedState state) { 3109 boolean hidden = false; 3110 3111 if (isLinkDebouncing() || isRoaming()) { 3112 // There is generally a confusion in the system about colluding 3113 // WiFi Layer 2 state (as reported by supplicant) and the Network state 3114 // which leads to multiple confusion. 3115 // 3116 // If link is de-bouncing or roaming, we already have an IP address 3117 // as well we were connected and are doing L2 cycles of 3118 // reconnecting or renewing IP address to check that we still have it 3119 // This L2 link flapping should ne be reflected into the Network state 3120 // which is the state of the WiFi Network visible to Layer 3 and applications 3121 // Note that once debouncing and roaming are completed, we will 3122 // set the Network state to where it should be, or leave it as unchanged 3123 // 3124 hidden = true; 3125 } 3126 if (mVerboseLoggingEnabled) { 3127 log("setDetailed state, old =" 3128 + mNetworkInfo.getDetailedState() + " and new state=" + state 3129 + " hidden=" + hidden); 3130 } 3131 if (mNetworkInfo.getExtraInfo() != null && mWifiInfo.getSSID() != null 3132 && !mWifiInfo.getSSID().equals(WifiSsid.NONE)) { 3133 // Always indicate that SSID has changed 3134 if (!mNetworkInfo.getExtraInfo().equals(mWifiInfo.getSSID())) { 3135 if (mVerboseLoggingEnabled) { 3136 log("setDetailed state send new extra info" + mWifiInfo.getSSID()); 3137 } 3138 mNetworkInfo.setExtraInfo(mWifiInfo.getSSID()); 3139 sendNetworkStateChangeBroadcast(null); 3140 } 3141 } 3142 if (hidden == true) { 3143 return false; 3144 } 3145 3146 if (state != mNetworkInfo.getDetailedState()) { 3147 mNetworkInfo.setDetailedState(state, null, mWifiInfo.getSSID()); 3148 if (mNetworkAgent != null) { 3149 mNetworkAgent.sendNetworkInfo(mNetworkInfo); 3150 } 3151 sendNetworkStateChangeBroadcast(null); 3152 return true; 3153 } 3154 return false; 3155 } 3156 3157 private DetailedState getNetworkDetailedState() { 3158 return mNetworkInfo.getDetailedState(); 3159 } 3160 3161 private SupplicantState handleSupplicantStateChange(Message message) { 3162 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 3163 SupplicantState state = stateChangeResult.state; 3164 // Supplicant state change 3165 // [31-13] Reserved for future use 3166 // [8 - 0] Supplicant state (as defined in SupplicantState.java) 3167 // 50023 supplicant_state_changed (custom|1|5) 3168 mWifiInfo.setSupplicantState(state); 3169 // If we receive a supplicant state change with an empty SSID, 3170 // this implies that wpa_supplicant is already disconnected. 3171 // We should pretend we are still connected when linkDebouncing is on. 3172 if ((stateChangeResult.wifiSsid == null 3173 || stateChangeResult.wifiSsid.toString().isEmpty()) && isLinkDebouncing()) { 3174 return state; 3175 } 3176 // Network id is only valid when we start connecting 3177 if (SupplicantState.isConnecting(state)) { 3178 mWifiInfo.setNetworkId(lookupFrameworkNetworkId(stateChangeResult.networkId)); 3179 } else { 3180 mWifiInfo.setNetworkId(WifiConfiguration.INVALID_NETWORK_ID); 3181 } 3182 3183 mWifiInfo.setBSSID(stateChangeResult.BSSID); 3184 3185 mWifiInfo.setSSID(stateChangeResult.wifiSsid); 3186 WifiConfiguration config = getCurrentWifiConfiguration(); 3187 if (config != null) { 3188 mWifiInfo.setEphemeral(config.ephemeral); 3189 if (!mWifiInfo.getMeteredHint()) { // don't override the value if already set. 3190 mWifiInfo.setMeteredHint(config.meteredHint); 3191 } 3192 } 3193 3194 mSupplicantStateTracker.sendMessage(Message.obtain(message)); 3195 3196 return state; 3197 } 3198 3199 /** 3200 * Resets the Wi-Fi Connections by clearing any state, resetting any sockets 3201 * using the interface, stopping DHCP & disabling interface 3202 */ 3203 private void handleNetworkDisconnect() { 3204 if (mVerboseLoggingEnabled) { 3205 log("handleNetworkDisconnect: Stopping DHCP and clearing IP" 3206 + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 3207 + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() 3208 + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() 3209 + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); 3210 } 3211 3212 stopRssiMonitoringOffload(); 3213 3214 clearTargetBssid("handleNetworkDisconnect"); 3215 3216 stopIpManager(); 3217 3218 /* Reset data structures */ 3219 mWifiScoreReport.reset(); 3220 mWifiInfo.reset(); 3221 mIsLinkDebouncing = false; 3222 /* Reset roaming parameters */ 3223 mAutoRoaming = false; 3224 3225 setNetworkDetailedState(DetailedState.DISCONNECTED); 3226 if (mNetworkAgent != null) { 3227 mNetworkAgent.sendNetworkInfo(mNetworkInfo); 3228 mNetworkAgent = null; 3229 } 3230 3231 /* Clear network properties */ 3232 clearLinkProperties(); 3233 3234 /* Cend event to CM & network change broadcast */ 3235 sendNetworkStateChangeBroadcast(mLastBssid); 3236 3237 mLastBssid = null; 3238 registerDisconnected(); 3239 mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 3240 } 3241 3242 private void handleSupplicantConnectionLoss(boolean killSupplicant) { 3243 /* Socket connection can be lost when we do a graceful shutdown 3244 * or when the driver is hung. Ensure supplicant is stopped here. 3245 */ 3246 if (killSupplicant) { 3247 mWifiMonitor.stopAllMonitoring(); 3248 try { 3249 if (!mClientInterface.disableSupplicant()) { 3250 loge("Failed to disable supplicant after connection loss"); 3251 } 3252 } catch (RemoteException e) { 3253 // Remote interface has died, there is no cleanup we can do. 3254 } 3255 } 3256 mWifiNative.closeSupplicantConnection(); 3257 sendSupplicantConnectionChangedBroadcast(false); 3258 setWifiState(WIFI_STATE_DISABLED); 3259 } 3260 3261 void handlePreDhcpSetup() { 3262 if (!mBluetoothConnectionActive) { 3263 /* 3264 * There are problems setting the Wi-Fi driver's power 3265 * mode to active when bluetooth coexistence mode is 3266 * enabled or sense. 3267 * <p> 3268 * We set Wi-Fi to active mode when 3269 * obtaining an IP address because we've found 3270 * compatibility issues with some routers with low power 3271 * mode. 3272 * <p> 3273 * In order for this active power mode to properly be set, 3274 * we disable coexistence mode until we're done with 3275 * obtaining an IP address. One exception is if we 3276 * are currently connected to a headset, since disabling 3277 * coexistence would interrupt that connection. 3278 */ 3279 // Disable the coexistence mode 3280 mWifiNative.setBluetoothCoexistenceMode( 3281 WifiNative.BLUETOOTH_COEXISTENCE_MODE_DISABLED); 3282 } 3283 3284 // Disable power save and suspend optimizations during DHCP 3285 // Note: The order here is important for now. Brcm driver changes 3286 // power settings when we control suspend mode optimizations. 3287 // TODO: Remove this comment when the driver is fixed. 3288 setSuspendOptimizationsNative(SUSPEND_DUE_TO_DHCP, false); 3289 mWifiNative.setPowerSave(false); 3290 3291 // Update link layer stats 3292 getWifiLinkLayerStats(); 3293 3294 if (mWifiP2pChannel != null) { 3295 /* P2p discovery breaks dhcp, shut it down in order to get through this */ 3296 Message msg = new Message(); 3297 msg.what = WifiP2pServiceImpl.BLOCK_DISCOVERY; 3298 msg.arg1 = WifiP2pServiceImpl.ENABLED; 3299 msg.arg2 = DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE; 3300 msg.obj = WifiStateMachine.this; 3301 mWifiP2pChannel.sendMessage(msg); 3302 } else { 3303 // If the p2p service is not running, we can proceed directly. 3304 sendMessage(DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE); 3305 } 3306 } 3307 3308 void handlePostDhcpSetup() { 3309 /* Restore power save and suspend optimizations */ 3310 setSuspendOptimizationsNative(SUSPEND_DUE_TO_DHCP, true); 3311 mWifiNative.setPowerSave(true); 3312 3313 p2pSendMessage(WifiP2pServiceImpl.BLOCK_DISCOVERY, WifiP2pServiceImpl.DISABLED); 3314 3315 // Set the coexistence mode back to its default value 3316 mWifiNative.setBluetoothCoexistenceMode( 3317 WifiNative.BLUETOOTH_COEXISTENCE_MODE_SENSE); 3318 } 3319 3320 /** 3321 * Inform other components (WifiMetrics, WifiDiagnostics, etc.) that the current connection attempt 3322 * has concluded. 3323 */ 3324 private void reportConnectionAttemptEnd(int level2FailureCode, int connectivityFailureCode) { 3325 mWifiMetrics.endConnectionEvent(level2FailureCode, connectivityFailureCode); 3326 switch (level2FailureCode) { 3327 case WifiMetrics.ConnectionEvent.FAILURE_NONE: 3328 case WifiMetrics.ConnectionEvent.FAILURE_REDUNDANT_CONNECTION_ATTEMPT: 3329 case WifiMetrics.ConnectionEvent.FAILURE_CONNECT_NETWORK_FAILED: 3330 // WifiDiagnostics doesn't care about success, or pre-empted connections. 3331 break; 3332 default: 3333 mWifiDiagnostics.reportConnectionEvent(WifiDiagnostics.CONNECTION_EVENT_FAILED); 3334 } 3335 } 3336 3337 private void handleIPv4Success(DhcpResults dhcpResults) { 3338 if (mVerboseLoggingEnabled) { 3339 logd("handleIPv4Success <" + dhcpResults.toString() + ">"); 3340 logd("link address " + dhcpResults.ipAddress); 3341 } 3342 3343 Inet4Address addr; 3344 synchronized (mDhcpResultsLock) { 3345 mDhcpResults = dhcpResults; 3346 addr = (Inet4Address) dhcpResults.ipAddress.getAddress(); 3347 } 3348 3349 if (isRoaming()) { 3350 int previousAddress = mWifiInfo.getIpAddress(); 3351 int newAddress = NetworkUtils.inetAddressToInt(addr); 3352 if (previousAddress != newAddress) { 3353 logd("handleIPv4Success, roaming and address changed" + 3354 mWifiInfo + " got: " + addr); 3355 } 3356 } 3357 mWifiInfo.setInetAddress(addr); 3358 if (!mWifiInfo.getMeteredHint()) { // don't override the value if already set. 3359 mWifiInfo.setMeteredHint(dhcpResults.hasMeteredHint()); 3360 updateCapabilities(getCurrentWifiConfiguration()); 3361 } 3362 } 3363 3364 private void handleSuccessfulIpConfiguration() { 3365 mLastSignalLevel = -1; // Force update of signal strength 3366 WifiConfiguration c = getCurrentWifiConfiguration(); 3367 if (c != null) { 3368 // Reset IP failure tracking 3369 c.getNetworkSelectionStatus().clearDisableReasonCounter( 3370 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3371 3372 // Tell the framework whether the newly connected network is trusted or untrusted. 3373 updateCapabilities(c); 3374 } 3375 if (c != null) { 3376 ScanResult result = getCurrentScanResult(); 3377 if (result == null) { 3378 logd("WifiStateMachine: handleSuccessfulIpConfiguration and no scan results" + 3379 c.configKey()); 3380 } else { 3381 // Clear the per BSSID failure count 3382 result.numIpConfigFailures = 0; 3383 } 3384 } 3385 } 3386 3387 private void handleIPv4Failure() { 3388 // TODO: Move this to provisioning failure, not DHCP failure. 3389 // DHCPv4 failure is expected on an IPv6-only network. 3390 mWifiDiagnostics.captureBugReportData(WifiDiagnostics.REPORT_REASON_DHCP_FAILURE); 3391 if (mVerboseLoggingEnabled) { 3392 int count = -1; 3393 WifiConfiguration config = getCurrentWifiConfiguration(); 3394 if (config != null) { 3395 count = config.getNetworkSelectionStatus().getDisableReasonCounter( 3396 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3397 } 3398 log("DHCP failure count=" + count); 3399 } 3400 reportConnectionAttemptEnd( 3401 WifiMetrics.ConnectionEvent.FAILURE_DHCP, 3402 WifiMetricsProto.ConnectionEvent.HLF_DHCP); 3403 synchronized(mDhcpResultsLock) { 3404 if (mDhcpResults != null) { 3405 mDhcpResults.clear(); 3406 } 3407 } 3408 if (mVerboseLoggingEnabled) { 3409 logd("handleIPv4Failure"); 3410 } 3411 } 3412 3413 private void handleIpConfigurationLost() { 3414 mWifiInfo.setInetAddress(null); 3415 mWifiInfo.setMeteredHint(false); 3416 3417 mWifiConfigManager.updateNetworkSelectionStatus(mLastNetworkId, 3418 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3419 3420 /* DHCP times out after about 30 seconds, we do a 3421 * disconnect thru supplicant, we will let autojoin retry connecting to the network 3422 */ 3423 mWifiNative.disconnect(); 3424 } 3425 3426 // TODO: De-duplicated this and handleIpConfigurationLost(). 3427 private void handleIpReachabilityLost() { 3428 mWifiInfo.setInetAddress(null); 3429 mWifiInfo.setMeteredHint(false); 3430 3431 // TODO: Determine whether to call some form of mWifiConfigManager.handleSSIDStateChange(). 3432 3433 // Disconnect via supplicant, and let autojoin retry connecting to the network. 3434 mWifiNative.disconnect(); 3435 } 3436 3437 private static IClientInterface setupDriverForClientMode(IWificond wificond) { 3438 if (wificond == null) { 3439 Log.e(TAG, "Failed to get reference to wificond"); 3440 return null; 3441 } 3442 3443 IClientInterface clientInterface = null; 3444 try { 3445 clientInterface = wificond.createClientInterface(); 3446 } catch (RemoteException e1) { } 3447 3448 if (clientInterface == null) { 3449 Log.e(TAG, "Could not get IClientInterface instance from wificond"); 3450 return null; 3451 } else { 3452 Binder.allowBlocking(clientInterface.asBinder()); 3453 } 3454 3455 return clientInterface; 3456 } 3457 3458 private IApInterface setupDriverForSoftAp() { 3459 if (mWificond == null) { 3460 Log.e(TAG, "Failed to get reference to wificond"); 3461 return null; 3462 } 3463 3464 IApInterface apInterface = null; 3465 try { 3466 apInterface = mWificond.createApInterface(); 3467 } catch (RemoteException e1) { } 3468 3469 if (apInterface == null) { 3470 Log.e(TAG, "Could not get IApInterface instance from wificond"); 3471 return null; 3472 } else { 3473 Binder.allowBlocking(apInterface.asBinder()); 3474 } 3475 3476 if (!mWifiNative.startHal()) { 3477 // starting HAL is optional 3478 Log.e(TAG, "Failed to start HAL for AP mode"); 3479 } 3480 return apInterface; 3481 } 3482 3483 private byte[] macAddressFromString(String macString) { 3484 String[] macBytes = macString.split(":"); 3485 if (macBytes.length != 6) { 3486 throw new IllegalArgumentException("MAC address should be 6 bytes long!"); 3487 } 3488 byte[] mac = new byte[6]; 3489 for (int i = 0; i < macBytes.length; i++) { 3490 Integer hexVal = Integer.parseInt(macBytes[i], 16); 3491 mac[i] = hexVal.byteValue(); 3492 } 3493 return mac; 3494 } 3495 3496 /* 3497 * Read a MAC address in /proc/arp/table, used by WifistateMachine 3498 * so as to record MAC address of default gateway. 3499 **/ 3500 private String macAddressFromRoute(String ipAddress) { 3501 String macAddress = null; 3502 BufferedReader reader = null; 3503 try { 3504 reader = new BufferedReader(new FileReader("/proc/net/arp")); 3505 3506 // Skip over the line bearing colum titles 3507 String line = reader.readLine(); 3508 3509 while ((line = reader.readLine()) != null) { 3510 String[] tokens = line.split("[ ]+"); 3511 if (tokens.length < 6) { 3512 continue; 3513 } 3514 3515 // ARP column format is 3516 // Address HWType HWAddress Flags Mask IFace 3517 String ip = tokens[0]; 3518 String mac = tokens[3]; 3519 3520 if (ipAddress.equals(ip)) { 3521 macAddress = mac; 3522 break; 3523 } 3524 } 3525 3526 if (macAddress == null) { 3527 loge("Did not find remoteAddress {" + ipAddress + "} in " + 3528 "/proc/net/arp"); 3529 } 3530 3531 } catch (FileNotFoundException e) { 3532 loge("Could not open /proc/net/arp to lookup mac address"); 3533 } catch (IOException e) { 3534 loge("Could not read /proc/net/arp to lookup mac address"); 3535 } finally { 3536 try { 3537 if (reader != null) { 3538 reader.close(); 3539 } 3540 } catch (IOException e) { 3541 // Do nothing 3542 } 3543 } 3544 return macAddress; 3545 3546 } 3547 3548 private class WifiNetworkFactory extends NetworkFactory { 3549 public WifiNetworkFactory(Looper l, Context c, String TAG, NetworkCapabilities f) { 3550 super(l, c, TAG, f); 3551 } 3552 3553 @Override 3554 protected void needNetworkFor(NetworkRequest networkRequest, int score) { 3555 synchronized (mWifiReqCountLock) { 3556 if (++mConnectionReqCount == 1) { 3557 if (mWifiConnectivityManager != null && mUntrustedReqCount == 0) { 3558 mWifiConnectivityManager.enable(true); 3559 } 3560 } 3561 } 3562 } 3563 3564 @Override 3565 protected void releaseNetworkFor(NetworkRequest networkRequest) { 3566 synchronized (mWifiReqCountLock) { 3567 if (--mConnectionReqCount == 0) { 3568 if (mWifiConnectivityManager != null && mUntrustedReqCount == 0) { 3569 mWifiConnectivityManager.enable(false); 3570 } 3571 } 3572 } 3573 } 3574 3575 @Override 3576 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3577 pw.println("mConnectionReqCount " + mConnectionReqCount); 3578 } 3579 3580 } 3581 3582 private class UntrustedWifiNetworkFactory extends NetworkFactory { 3583 public UntrustedWifiNetworkFactory(Looper l, Context c, String tag, NetworkCapabilities f) { 3584 super(l, c, tag, f); 3585 } 3586 3587 @Override 3588 protected void needNetworkFor(NetworkRequest networkRequest, int score) { 3589 if (!networkRequest.networkCapabilities.hasCapability( 3590 NetworkCapabilities.NET_CAPABILITY_TRUSTED)) { 3591 synchronized (mWifiReqCountLock) { 3592 if (++mUntrustedReqCount == 1) { 3593 if (mWifiConnectivityManager != null) { 3594 if (mConnectionReqCount == 0) { 3595 mWifiConnectivityManager.enable(true); 3596 } 3597 mWifiConnectivityManager.setUntrustedConnectionAllowed(true); 3598 } 3599 } 3600 } 3601 } 3602 } 3603 3604 @Override 3605 protected void releaseNetworkFor(NetworkRequest networkRequest) { 3606 if (!networkRequest.networkCapabilities.hasCapability( 3607 NetworkCapabilities.NET_CAPABILITY_TRUSTED)) { 3608 synchronized (mWifiReqCountLock) { 3609 if (--mUntrustedReqCount == 0) { 3610 if (mWifiConnectivityManager != null) { 3611 mWifiConnectivityManager.setUntrustedConnectionAllowed(false); 3612 if (mConnectionReqCount == 0) { 3613 mWifiConnectivityManager.enable(false); 3614 } 3615 } 3616 } 3617 } 3618 } 3619 } 3620 3621 @Override 3622 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3623 pw.println("mUntrustedReqCount " + mUntrustedReqCount); 3624 } 3625 } 3626 3627 void maybeRegisterNetworkFactory() { 3628 if (mNetworkFactory == null) { 3629 checkAndSetConnectivityInstance(); 3630 if (mCm != null) { 3631 mNetworkFactory = new WifiNetworkFactory(getHandler().getLooper(), mContext, 3632 NETWORKTYPE, mNetworkCapabilitiesFilter); 3633 mNetworkFactory.setScoreFilter(60); 3634 mNetworkFactory.register(); 3635 3636 // We can't filter untrusted network in the capabilities filter because a trusted 3637 // network would still satisfy a request that accepts untrusted ones. 3638 mUntrustedNetworkFactory = new UntrustedWifiNetworkFactory(getHandler().getLooper(), 3639 mContext, NETWORKTYPE_UNTRUSTED, mNetworkCapabilitiesFilter); 3640 mUntrustedNetworkFactory.setScoreFilter(Integer.MAX_VALUE); 3641 mUntrustedNetworkFactory.register(); 3642 } 3643 } 3644 } 3645 3646 /** 3647 * WifiStateMachine needs to enable/disable other services when wifi is in client mode. This 3648 * method allows WifiStateMachine to get these additional system services. 3649 * 3650 * At this time, this method is used to setup variables for P2P service and Wifi Aware. 3651 */ 3652 private void getAdditionalWifiServiceInterfaces() { 3653 // First set up Wifi Direct 3654 if (mP2pSupported) { 3655 IBinder s1 = mFacade.getService(Context.WIFI_P2P_SERVICE); 3656 WifiP2pServiceImpl wifiP2pServiceImpl = 3657 (WifiP2pServiceImpl) IWifiP2pManager.Stub.asInterface(s1); 3658 3659 if (wifiP2pServiceImpl != null) { 3660 mWifiP2pChannel = new AsyncChannel(); 3661 mWifiP2pChannel.connect(mContext, getHandler(), 3662 wifiP2pServiceImpl.getP2pStateMachineMessenger()); 3663 } 3664 } 3665 } 3666 3667 /******************************************************** 3668 * HSM states 3669 *******************************************************/ 3670 3671 class DefaultState extends State { 3672 3673 @Override 3674 public boolean processMessage(Message message) { 3675 logStateAndMessage(message, this); 3676 3677 switch (message.what) { 3678 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 3679 AsyncChannel ac = (AsyncChannel) message.obj; 3680 if (ac == mWifiP2pChannel) { 3681 if (message.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 3682 p2pSendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 3683 } else { 3684 loge("WifiP2pService connection failure, error=" + message.arg1); 3685 } 3686 } else { 3687 loge("got HALF_CONNECTED for unknown channel"); 3688 } 3689 break; 3690 } 3691 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 3692 AsyncChannel ac = (AsyncChannel) message.obj; 3693 if (ac == mWifiP2pChannel) { 3694 loge("WifiP2pService channel lost, message.arg1 =" + message.arg1); 3695 //TODO: Re-establish connection to state machine after a delay 3696 // mWifiP2pChannel.connect(mContext, getHandler(), 3697 // mWifiP2pManager.getMessenger()); 3698 } 3699 break; 3700 } 3701 case CMD_BLUETOOTH_ADAPTER_STATE_CHANGE: 3702 mBluetoothConnectionActive = (message.arg1 != 3703 BluetoothAdapter.STATE_DISCONNECTED); 3704 break; 3705 /* Synchronous call returns */ 3706 case CMD_PING_SUPPLICANT: 3707 case CMD_ENABLE_NETWORK: 3708 case CMD_ADD_OR_UPDATE_NETWORK: 3709 case CMD_REMOVE_NETWORK: 3710 case CMD_SAVE_CONFIG: 3711 replyToMessage(message, message.what, FAILURE); 3712 break; 3713 case CMD_GET_CONFIGURED_NETWORKS: 3714 replyToMessage(message, message.what, (List<WifiConfiguration>) null); 3715 break; 3716 case CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS: 3717 replyToMessage(message, message.what, (List<WifiConfiguration>) null); 3718 break; 3719 case CMD_ENABLE_RSSI_POLL: 3720 mEnableRssiPolling = (message.arg1 == 1); 3721 break; 3722 case CMD_SET_HIGH_PERF_MODE: 3723 if (message.arg1 == 1) { 3724 setSuspendOptimizations(SUSPEND_DUE_TO_HIGH_PERF, false); 3725 } else { 3726 setSuspendOptimizations(SUSPEND_DUE_TO_HIGH_PERF, true); 3727 } 3728 break; 3729 case CMD_BOOT_COMPLETED: 3730 // get other services that we need to manage 3731 getAdditionalWifiServiceInterfaces(); 3732 if (!mWifiConfigManager.loadFromStore()) { 3733 Log.e(TAG, "Failed to load from config store"); 3734 } 3735 maybeRegisterNetworkFactory(); 3736 break; 3737 case CMD_SCREEN_STATE_CHANGED: 3738 handleScreenStateChanged(message.arg1 != 0); 3739 break; 3740 /* Discard */ 3741 case CMD_START_SCAN: 3742 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3743 break; 3744 case CMD_START_SUPPLICANT: 3745 case CMD_STOP_SUPPLICANT: 3746 case CMD_STOP_SUPPLICANT_FAILED: 3747 case CMD_DRIVER_START_TIMED_OUT: 3748 case CMD_START_AP: 3749 case CMD_START_AP_FAILURE: 3750 case CMD_STOP_AP: 3751 case CMD_AP_STOPPED: 3752 case CMD_DISCONNECT: 3753 case CMD_RECONNECT: 3754 case CMD_REASSOCIATE: 3755 case CMD_RELOAD_TLS_AND_RECONNECT: 3756 case WifiMonitor.SUP_CONNECTION_EVENT: 3757 case WifiMonitor.SUP_DISCONNECTION_EVENT: 3758 case WifiMonitor.NETWORK_CONNECTION_EVENT: 3759 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 3760 case WifiMonitor.SCAN_RESULTS_EVENT: 3761 case WifiMonitor.SCAN_FAILED_EVENT: 3762 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 3763 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 3764 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 3765 case WifiMonitor.WPS_OVERLAP_EVENT: 3766 case CMD_SET_OPERATIONAL_MODE: 3767 case CMD_RSSI_POLL: 3768 case DhcpClient.CMD_PRE_DHCP_ACTION: 3769 case DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE: 3770 case DhcpClient.CMD_POST_DHCP_ACTION: 3771 case CMD_NO_NETWORKS_PERIODIC_SCAN: 3772 case CMD_DISABLE_P2P_RSP: 3773 case WifiMonitor.SUP_REQUEST_IDENTITY: 3774 case CMD_TEST_NETWORK_DISCONNECT: 3775 case WifiMonitor.SUP_REQUEST_SIM_AUTH: 3776 case CMD_TARGET_BSSID: 3777 case CMD_START_CONNECT: 3778 case CMD_START_ROAM: 3779 case CMD_ASSOCIATED_BSSID: 3780 case CMD_UNWANTED_NETWORK: 3781 case CMD_DISCONNECTING_WATCHDOG_TIMER: 3782 case CMD_ROAM_WATCHDOG_TIMER: 3783 case CMD_DISABLE_EPHEMERAL_NETWORK: 3784 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3785 break; 3786 case CMD_SET_SUSPEND_OPT_ENABLED: 3787 if (message.arg1 == 1) { 3788 if (message.arg2 == 1) { 3789 mSuspendWakeLock.release(); 3790 } 3791 setSuspendOptimizations(SUSPEND_DUE_TO_SCREEN, true); 3792 } else { 3793 setSuspendOptimizations(SUSPEND_DUE_TO_SCREEN, false); 3794 } 3795 break; 3796 case WifiMonitor.DRIVER_HUNG_EVENT: 3797 setSupplicantRunning(false); 3798 setSupplicantRunning(true); 3799 break; 3800 case WifiManager.CONNECT_NETWORK: 3801 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 3802 WifiManager.BUSY); 3803 break; 3804 case WifiManager.FORGET_NETWORK: 3805 replyToMessage(message, WifiManager.FORGET_NETWORK_FAILED, 3806 WifiManager.BUSY); 3807 break; 3808 case WifiManager.SAVE_NETWORK: 3809 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 3810 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 3811 WifiManager.BUSY); 3812 break; 3813 case WifiManager.START_WPS: 3814 replyToMessage(message, WifiManager.WPS_FAILED, 3815 WifiManager.BUSY); 3816 break; 3817 case WifiManager.CANCEL_WPS: 3818 replyToMessage(message, WifiManager.CANCEL_WPS_FAILED, 3819 WifiManager.BUSY); 3820 break; 3821 case WifiManager.DISABLE_NETWORK: 3822 replyToMessage(message, WifiManager.DISABLE_NETWORK_FAILED, 3823 WifiManager.BUSY); 3824 break; 3825 case WifiManager.RSSI_PKTCNT_FETCH: 3826 replyToMessage(message, WifiManager.RSSI_PKTCNT_FETCH_FAILED, 3827 WifiManager.BUSY); 3828 break; 3829 case CMD_GET_SUPPORTED_FEATURES: 3830 int featureSet = mWifiNative.getSupportedFeatureSet(); 3831 replyToMessage(message, message.what, featureSet); 3832 break; 3833 case CMD_FIRMWARE_ALERT: 3834 if (mWifiDiagnostics != null) { 3835 byte[] buffer = (byte[])message.obj; 3836 int alertReason = message.arg1; 3837 mWifiDiagnostics.captureAlertData(alertReason, buffer); 3838 mWifiMetrics.incrementAlertReasonCount(alertReason); 3839 } 3840 break; 3841 case CMD_GET_LINK_LAYER_STATS: 3842 // Not supported hence reply with error message 3843 replyToMessage(message, message.what, null); 3844 break; 3845 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 3846 NetworkInfo info = (NetworkInfo) message.obj; 3847 mP2pConnected.set(info.isConnected()); 3848 break; 3849 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 3850 mTemporarilyDisconnectWifi = (message.arg1 == 1); 3851 replyToMessage(message, WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE); 3852 break; 3853 /* Link configuration (IP address, DNS, ...) changes notified via netlink */ 3854 case CMD_UPDATE_LINKPROPERTIES: 3855 updateLinkProperties((LinkProperties) message.obj); 3856 break; 3857 case CMD_GET_MATCHING_CONFIG: 3858 replyToMessage(message, message.what); 3859 break; 3860 case CMD_IP_CONFIGURATION_SUCCESSFUL: 3861 case CMD_IP_CONFIGURATION_LOST: 3862 case CMD_IP_REACHABILITY_LOST: 3863 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3864 break; 3865 case CMD_GET_CONNECTION_STATISTICS: 3866 replyToMessage(message, message.what, mWifiConnectionStatistics); 3867 break; 3868 case CMD_REMOVE_APP_CONFIGURATIONS: 3869 deferMessage(message); 3870 break; 3871 case CMD_REMOVE_USER_CONFIGURATIONS: 3872 deferMessage(message); 3873 break; 3874 case CMD_START_IP_PACKET_OFFLOAD: 3875 if (mNetworkAgent != null) mNetworkAgent.onPacketKeepaliveEvent( 3876 message.arg1, 3877 ConnectivityManager.PacketKeepalive.ERROR_INVALID_NETWORK); 3878 break; 3879 case CMD_STOP_IP_PACKET_OFFLOAD: 3880 if (mNetworkAgent != null) mNetworkAgent.onPacketKeepaliveEvent( 3881 message.arg1, 3882 ConnectivityManager.PacketKeepalive.ERROR_INVALID_NETWORK); 3883 break; 3884 case CMD_START_RSSI_MONITORING_OFFLOAD: 3885 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3886 break; 3887 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 3888 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3889 break; 3890 case CMD_USER_SWITCH: 3891 Set<Integer> removedNetworkIds = 3892 mWifiConfigManager.handleUserSwitch(message.arg1); 3893 if (removedNetworkIds.contains(mTargetNetworkId) || 3894 removedNetworkIds.contains(mLastNetworkId)) { 3895 // Disconnect and let autojoin reselect a new network 3896 sendMessage(CMD_DISCONNECT); 3897 } 3898 break; 3899 case CMD_USER_UNLOCK: 3900 mWifiConfigManager.handleUserUnlock(message.arg1); 3901 break; 3902 case CMD_USER_STOP: 3903 mWifiConfigManager.handleUserStop(message.arg1); 3904 break; 3905 case CMD_QUERY_OSU_ICON: 3906 case CMD_MATCH_PROVIDER_NETWORK: 3907 /* reply with arg1 = 0 - it returns API failure to the calling app 3908 * (message.what is not looked at) 3909 */ 3910 replyToMessage(message, message.what); 3911 break; 3912 case CMD_RESET_SIM_NETWORKS: 3913 /* Defer this message until supplicant is started. */ 3914 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 3915 deferMessage(message); 3916 break; 3917 case CMD_INSTALL_PACKET_FILTER: 3918 mWifiNative.installPacketFilter((byte[]) message.obj); 3919 break; 3920 case CMD_SET_FALLBACK_PACKET_FILTERING: 3921 if ((boolean) message.obj) { 3922 mWifiNative.startFilteringMulticastV4Packets(); 3923 } else { 3924 mWifiNative.stopFilteringMulticastV4Packets(); 3925 } 3926 break; 3927 case CMD_CLIENT_INTERFACE_BINDER_DEATH: 3928 // We have lost contact with a client interface, which means that we cannot 3929 // trust that the driver is up or that the interface is ready. We are fit 3930 // for no WiFi related work. 3931 transitionTo(mInitialState); 3932 break; 3933 default: 3934 loge("Error! unhandled message" + message); 3935 break; 3936 } 3937 return HANDLED; 3938 } 3939 } 3940 3941 class InitialState extends State { 3942 3943 private void cleanup() { 3944 // Tearing down the client interfaces below is going to stop our supplicant. 3945 mWifiMonitor.stopAllMonitoring(); 3946 3947 mDeathRecipient.unlinkToDeath(); 3948 if (mWificond != null) { 3949 try { 3950 mWificond.tearDownInterfaces(); 3951 } catch (RemoteException e) { 3952 // There is very little we can do here 3953 Log.e(TAG, "Failed to tear down interfaces via wificond"); 3954 } 3955 mWificond = null; 3956 } 3957 mWifiNative.stopHal(); 3958 } 3959 3960 @Override 3961 public void enter() { 3962 cleanup(); 3963 } 3964 3965 @Override 3966 public boolean processMessage(Message message) { 3967 logStateAndMessage(message, this); 3968 switch (message.what) { 3969 case CMD_START_SUPPLICANT: 3970 // Refresh our reference to wificond. This allows us to tolerate restarts. 3971 mWificond = mWifiInjector.makeWificond(); 3972 mClientInterface = setupDriverForClientMode(mWificond); 3973 if (mClientInterface == null || 3974 !mDeathRecipient.linkToDeath(mClientInterface.asBinder())) { 3975 setWifiState(WifiManager.WIFI_STATE_UNKNOWN); 3976 cleanup(); 3977 break; 3978 } 3979 3980 try { 3981 // A runtime crash or shutting down AP mode can leave 3982 // IP addresses configured, and this affects 3983 // connectivity when supplicant starts up. 3984 // Ensure we have no IP addresses before a supplicant start. 3985 mNwService.clearInterfaceAddresses(mInterfaceName); 3986 3987 // Set privacy extensions 3988 mNwService.setInterfaceIpv6PrivacyExtensions(mInterfaceName, true); 3989 3990 // IPv6 is enabled only as long as access point is connected since: 3991 // - IPv6 addresses and routes stick around after disconnection 3992 // - kernel is unaware when connected and fails to start IPv6 negotiation 3993 // - kernel can start autoconfiguration when 802.1x is not complete 3994 mNwService.disableIpv6(mInterfaceName); 3995 } catch (RemoteException re) { 3996 loge("Unable to change interface settings: " + re); 3997 } catch (IllegalStateException ie) { 3998 loge("Unable to change interface settings: " + ie); 3999 } 4000 4001 if (!mWifiNative.startHal()) { 4002 // starting HAL is optional 4003 Log.e(TAG, "Failed to start HAL for client mode"); 4004 } 4005 4006 try { 4007 if (!mClientInterface.enableSupplicant()) { 4008 loge("Failed to start supplicant!"); 4009 setWifiState(WifiManager.WIFI_STATE_UNKNOWN); 4010 cleanup(); 4011 break; 4012 } 4013 } catch (RemoteException e) { 4014 cleanup(); 4015 break; 4016 } 4017 setSupplicantLogLevel(); 4018 setWifiState(WIFI_STATE_ENABLING); 4019 if (mVerboseLoggingEnabled) log("Supplicant start successful"); 4020 mWifiMonitor.startMonitoring(mInterfaceName); 4021 transitionTo(mSupplicantStartingState); 4022 break; 4023 case CMD_START_AP: 4024 // Refresh our reference to wificond. This allows us to tolerate restarts. 4025 mWificond = mWifiInjector.makeWificond(); 4026 transitionTo(mSoftApState); 4027 break; 4028 case CMD_SET_OPERATIONAL_MODE: 4029 mOperationalMode = message.arg1; 4030 if (mOperationalMode != DISABLED_MODE) { 4031 sendMessage(CMD_START_SUPPLICANT); 4032 } 4033 break; 4034 default: 4035 return NOT_HANDLED; 4036 } 4037 return HANDLED; 4038 } 4039 } 4040 4041 class SupplicantStartingState extends State { 4042 private void initializeWpsDetails() { 4043 String detail; 4044 detail = mPropertyService.get("ro.product.name", ""); 4045 if (!mWifiNative.setDeviceName(detail)) { 4046 loge("Failed to set device name " + detail); 4047 } 4048 detail = mPropertyService.get("ro.product.manufacturer", ""); 4049 if (!mWifiNative.setManufacturer(detail)) { 4050 loge("Failed to set manufacturer " + detail); 4051 } 4052 detail = mPropertyService.get("ro.product.model", ""); 4053 if (!mWifiNative.setModelName(detail)) { 4054 loge("Failed to set model name " + detail); 4055 } 4056 detail = mPropertyService.get("ro.product.model", ""); 4057 if (!mWifiNative.setModelNumber(detail)) { 4058 loge("Failed to set model number " + detail); 4059 } 4060 detail = mPropertyService.get("ro.serialno", ""); 4061 if (!mWifiNative.setSerialNumber(detail)) { 4062 loge("Failed to set serial number " + detail); 4063 } 4064 if (!mWifiNative.setConfigMethods("physical_display virtual_push_button")) { 4065 loge("Failed to set WPS config methods"); 4066 } 4067 if (!mWifiNative.setDeviceType(mPrimaryDeviceType)) { 4068 loge("Failed to set primary device type " + mPrimaryDeviceType); 4069 } 4070 } 4071 4072 @Override 4073 public boolean processMessage(Message message) { 4074 logStateAndMessage(message, this); 4075 4076 switch(message.what) { 4077 case WifiMonitor.SUP_CONNECTION_EVENT: 4078 if (mVerboseLoggingEnabled) log("Supplicant connection established"); 4079 4080 mSupplicantRestartCount = 0; 4081 /* Reset the supplicant state to indicate the supplicant 4082 * state is not known at this time */ 4083 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 4084 /* Initialize data structures */ 4085 mLastBssid = null; 4086 mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 4087 mLastSignalLevel = -1; 4088 4089 mWifiInfo.setMacAddress(mWifiNative.getMacAddress()); 4090 // Attempt to migrate data out of legacy store. 4091 if (!mWifiConfigManager.migrateFromLegacyStore()) { 4092 Log.e(TAG, "Failed to migrate from legacy config store"); 4093 } 4094 initializeWpsDetails(); 4095 sendSupplicantConnectionChangedBroadcast(true); 4096 transitionTo(mSupplicantStartedState); 4097 break; 4098 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4099 if (++mSupplicantRestartCount <= SUPPLICANT_RESTART_TRIES) { 4100 loge("Failed to setup control channel, restart supplicant"); 4101 mWifiMonitor.stopAllMonitoring(); 4102 try { 4103 mClientInterface.disableSupplicant(); 4104 } catch (RemoteException e) { 4105 // The client interface is dead, there is nothing more we can do. 4106 } 4107 transitionTo(mInitialState); 4108 sendMessageDelayed(CMD_START_SUPPLICANT, SUPPLICANT_RESTART_INTERVAL_MSECS); 4109 } else { 4110 loge("Failed " + mSupplicantRestartCount + 4111 " times to start supplicant, unload driver"); 4112 mSupplicantRestartCount = 0; 4113 setWifiState(WIFI_STATE_UNKNOWN); 4114 transitionTo(mInitialState); 4115 } 4116 break; 4117 case CMD_START_SUPPLICANT: 4118 case CMD_STOP_SUPPLICANT: 4119 case CMD_START_AP: 4120 case CMD_STOP_AP: 4121 case CMD_SET_OPERATIONAL_MODE: 4122 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 4123 deferMessage(message); 4124 break; 4125 default: 4126 return NOT_HANDLED; 4127 } 4128 return HANDLED; 4129 } 4130 } 4131 4132 class SupplicantStartedState extends State { 4133 @Override 4134 public void enter() { 4135 if (mVerboseLoggingEnabled) { 4136 logd("SupplicantStartedState enter"); 4137 } 4138 4139 int defaultInterval = mContext.getResources().getInteger( 4140 R.integer.config_wifi_supplicant_scan_interval); 4141 4142 mSupplicantScanIntervalMs = mFacade.getLongSetting(mContext, 4143 Settings.Global.WIFI_SUPPLICANT_SCAN_INTERVAL_MS, 4144 defaultInterval); 4145 4146 mWifiNative.setScanInterval((int)mSupplicantScanIntervalMs / 1000); 4147 mWifiNative.setExternalSim(true); 4148 4149 /* turn on use of DFS channels */ 4150 mWifiNative.setDfsFlag(true); 4151 4152 setRandomMacOui(); 4153 mWifiNative.enableAutoConnect(false); 4154 mCountryCode.setReadyForChange(true); 4155 4156 // We can't do this in the constructor because WifiStateMachine is created before the 4157 // wifi scanning service is initialized 4158 if (mWifiScanner == null) { 4159 mWifiScanner = mWifiInjector.getWifiScanner(); 4160 4161 synchronized (mWifiReqCountLock) { 4162 mWifiConnectivityManager = 4163 mWifiInjector.makeWifiConnectivityManager(mWifiInfo, 4164 hasConnectionRequests()); 4165 mWifiConnectivityManager.setUntrustedConnectionAllowed(mUntrustedReqCount > 0); 4166 mWifiConnectivityManager.handleScreenStateChanged(mScreenOn); 4167 } 4168 } 4169 4170 mWifiDiagnostics.startLogging(mVerboseLoggingEnabled); 4171 mIsRunning = true; 4172 updateBatteryWorkSource(null); 4173 /** 4174 * Enable bluetooth coexistence scan mode when bluetooth connection is active. 4175 * When this mode is on, some of the low-level scan parameters used by the 4176 * driver are changed to reduce interference with bluetooth 4177 */ 4178 mWifiNative.setBluetoothCoexistenceScanMode(mBluetoothConnectionActive); 4179 // initialize network state 4180 setNetworkDetailedState(DetailedState.DISCONNECTED); 4181 4182 // Disable legacy multicast filtering, which on some chipsets defaults to enabled. 4183 // Legacy IPv6 multicast filtering blocks ICMPv6 router advertisements which breaks IPv6 4184 // provisioning. Legacy IPv4 multicast filtering may be re-enabled later via 4185 // IpManager.Callback.setFallbackMulticastFilter() 4186 mWifiNative.stopFilteringMulticastV4Packets(); 4187 mWifiNative.stopFilteringMulticastV6Packets(); 4188 4189 if (mOperationalMode == SCAN_ONLY_MODE || 4190 mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 4191 mWifiNative.disconnect(); 4192 if (mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 4193 setWifiState(WIFI_STATE_DISABLED); 4194 } 4195 transitionTo(mScanModeState); 4196 } else if (mOperationalMode == CONNECT_MODE){ 4197 4198 // Status pulls in the current supplicant state and network connection state 4199 // events over the monitor connection. This helps framework sync up with 4200 // current supplicant state 4201 // TODO: actually check the supplicant status string and make sure the supplicant 4202 // is in disconnecte4d state. 4203 mWifiNative.status(); 4204 // Transitioning to Disconnected state will trigger a scan and subsequently AutoJoin 4205 transitionTo(mDisconnectedState); 4206 } else if (mOperationalMode == DISABLED_MODE) { 4207 transitionTo(mSupplicantStoppingState); 4208 } 4209 4210 // Set the right suspend mode settings 4211 mWifiNative.setSuspendOptimizations(mSuspendOptNeedsDisabled == 0 4212 && mUserWantsSuspendOpt.get()); 4213 4214 mWifiNative.setPowerSave(true); 4215 4216 if (mP2pSupported) { 4217 if (mOperationalMode == CONNECT_MODE) { 4218 p2pSendMessage(WifiStateMachine.CMD_ENABLE_P2P); 4219 } else { 4220 // P2P state machine starts in disabled state, and is not enabled until 4221 // CMD_ENABLE_P2P is sent from here; so, nothing needs to be done to 4222 // keep it disabled. 4223 } 4224 } 4225 4226 if (mAwareSupported) { 4227 if (mWifiAwareManager == null) { 4228 mWifiAwareManager = mContext.getSystemService(WifiAwareManager.class); 4229 } 4230 if (mWifiAwareManager == null) { 4231 Log.e(TAG, "Can't get WifiAwareManager to enable usage!"); 4232 } else { 4233 if (mOperationalMode == CONNECT_MODE) { 4234 mWifiAwareManager.enableUsage(); 4235 } else { 4236 /* 4237 * Aware state machine starts in disabled state. Nothing 4238 * needed to keep it disabled. 4239 */ 4240 } 4241 } 4242 } 4243 4244 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 4245 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 4246 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_ENABLED); 4247 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 4248 4249 // Enable link layer stats gathering 4250 mWifiNative.setWifiLinkLayerStats("wlan0", 1); 4251 } 4252 4253 @Override 4254 public boolean processMessage(Message message) { 4255 logStateAndMessage(message, this); 4256 4257 switch(message.what) { 4258 case CMD_STOP_SUPPLICANT: /* Supplicant stopped by user */ 4259 if (mP2pSupported) { 4260 transitionTo(mWaitForP2pDisableState); 4261 } else { 4262 transitionTo(mSupplicantStoppingState); 4263 } 4264 break; 4265 case WifiMonitor.SUP_DISCONNECTION_EVENT: /* Supplicant connection lost */ 4266 loge("Connection lost, restart supplicant"); 4267 handleSupplicantConnectionLoss(true); 4268 handleNetworkDisconnect(); 4269 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 4270 if (mP2pSupported) { 4271 transitionTo(mWaitForP2pDisableState); 4272 } else { 4273 transitionTo(mInitialState); 4274 } 4275 sendMessageDelayed(CMD_START_SUPPLICANT, SUPPLICANT_RESTART_INTERVAL_MSECS); 4276 break; 4277 case CMD_START_SCAN: 4278 // TODO: remove scan request path (b/31445200) 4279 handleScanRequest(message); 4280 break; 4281 case WifiMonitor.SCAN_RESULTS_EVENT: 4282 case WifiMonitor.SCAN_FAILED_EVENT: 4283 // TODO: remove handing of SCAN_RESULTS_EVENT and SCAN_FAILED_EVENT when scan 4284 // results are retrieved from WifiScanner (b/31444878) 4285 maybeRegisterNetworkFactory(); // Make sure our NetworkFactory is registered 4286 setScanResults(); 4287 mIsScanOngoing = false; 4288 mIsFullScanOngoing = false; 4289 if (mBufferedScanMsg.size() > 0) 4290 sendMessage(mBufferedScanMsg.remove()); 4291 break; 4292 case CMD_PING_SUPPLICANT: 4293 boolean ok = mWifiNative.ping(); 4294 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 4295 break; 4296 case CMD_START_AP: 4297 /* Cannot start soft AP while in client mode */ 4298 loge("Failed to start soft AP with a running supplicant"); 4299 setWifiApState(WIFI_AP_STATE_FAILED, WifiManager.SAP_START_FAILURE_GENERAL); 4300 break; 4301 case CMD_SET_OPERATIONAL_MODE: 4302 mOperationalMode = message.arg1; 4303 if (mOperationalMode == DISABLED_MODE) { 4304 transitionTo(mSupplicantStoppingState); 4305 } 4306 break; 4307 case CMD_TARGET_BSSID: 4308 // Trying to associate to this BSSID 4309 if (message.obj != null) { 4310 mTargetRoamBSSID = (String) message.obj; 4311 } 4312 break; 4313 case CMD_GET_LINK_LAYER_STATS: 4314 WifiLinkLayerStats stats = getWifiLinkLayerStats(); 4315 replyToMessage(message, message.what, stats); 4316 break; 4317 case CMD_RESET_SIM_NETWORKS: 4318 log("resetting EAP-SIM/AKA/AKA' networks since SIM was changed"); 4319 mWifiConfigManager.resetSimNetworks(); 4320 break; 4321 case CMD_BLUETOOTH_ADAPTER_STATE_CHANGE: 4322 mBluetoothConnectionActive = (message.arg1 != 4323 BluetoothAdapter.STATE_DISCONNECTED); 4324 mWifiNative.setBluetoothCoexistenceScanMode(mBluetoothConnectionActive); 4325 break; 4326 case CMD_SET_SUSPEND_OPT_ENABLED: 4327 if (message.arg1 == 1) { 4328 setSuspendOptimizationsNative(SUSPEND_DUE_TO_SCREEN, true); 4329 if (message.arg2 == 1) { 4330 mSuspendWakeLock.release(); 4331 } 4332 } else { 4333 setSuspendOptimizationsNative(SUSPEND_DUE_TO_SCREEN, false); 4334 } 4335 break; 4336 case CMD_SET_HIGH_PERF_MODE: 4337 if (message.arg1 == 1) { 4338 setSuspendOptimizationsNative(SUSPEND_DUE_TO_HIGH_PERF, false); 4339 } else { 4340 setSuspendOptimizationsNative(SUSPEND_DUE_TO_HIGH_PERF, true); 4341 } 4342 break; 4343 case CMD_ENABLE_TDLS: 4344 if (message.obj != null) { 4345 String remoteAddress = (String) message.obj; 4346 boolean enable = (message.arg1 == 1); 4347 mWifiNative.startTdls(remoteAddress, enable); 4348 } 4349 break; 4350 case WifiMonitor.ANQP_DONE_EVENT: 4351 // TODO(zqiu): remove this when switch over to wificond for ANQP requests. 4352 mPasspointManager.notifyANQPDone((long) message.obj, message.arg1 != 0); 4353 break; 4354 case CMD_STOP_IP_PACKET_OFFLOAD: { 4355 int slot = message.arg1; 4356 int ret = stopWifiIPPacketOffload(slot); 4357 if (mNetworkAgent != null) { 4358 mNetworkAgent.onPacketKeepaliveEvent(slot, ret); 4359 } 4360 break; 4361 } 4362 case WifiMonitor.RX_HS20_ANQP_ICON_EVENT: 4363 // TODO(zqiu): remove this when switch over to wificond for icon requests. 4364 IconEvent event = (IconEvent) message.obj; 4365 mPasspointManager.notifyIconDone(event.getBSSID(), event); 4366 break; 4367 case WifiMonitor.HS20_REMEDIATION_EVENT: 4368 // TODO(zqiu): remove this when switch over to wificond for WNM frames 4369 // monitoring. 4370 mPasspointManager.receivedWnmFrame((WnmData) message.obj); 4371 break; 4372 case CMD_CONFIG_ND_OFFLOAD: 4373 final boolean enabled = (message.arg1 > 0); 4374 mWifiNative.configureNeighborDiscoveryOffload(enabled); 4375 break; 4376 case CMD_ENABLE_WIFI_CONNECTIVITY_MANAGER: 4377 mWifiConnectivityManager.enable(message.arg1 == 1 ? true : false); 4378 break; 4379 case CMD_ENABLE_AUTOJOIN_WHEN_ASSOCIATED: 4380 final boolean allowed = (message.arg1 > 0); 4381 boolean old_state = mEnableAutoJoinWhenAssociated; 4382 mEnableAutoJoinWhenAssociated = allowed; 4383 if (!old_state && allowed && mScreenOn 4384 && getCurrentState() == mConnectedState) { 4385 mWifiConnectivityManager.forceConnectivityScan(); 4386 } 4387 break; 4388 default: 4389 return NOT_HANDLED; 4390 } 4391 return HANDLED; 4392 } 4393 4394 @Override 4395 public void exit() { 4396 mWifiDiagnostics.stopLogging(); 4397 4398 mIsRunning = false; 4399 updateBatteryWorkSource(null); 4400 mScanResults = new ArrayList<>(); 4401 4402 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 4403 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 4404 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_DISABLED); 4405 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 4406 mBufferedScanMsg.clear(); 4407 4408 if (mAwareSupported) { 4409 if (mWifiAwareManager == null) { 4410 mWifiAwareManager = mContext.getSystemService(WifiAwareManager.class); 4411 } 4412 if (mWifiAwareManager == null) { 4413 Log.e(TAG, "Can't get WifiAwareManager (to disable usage)!"); 4414 } else { 4415 mWifiAwareManager.disableUsage(); 4416 } 4417 } 4418 4419 mNetworkInfo.setIsAvailable(false); 4420 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4421 mCountryCode.setReadyForChange(false); 4422 } 4423 } 4424 4425 class SupplicantStoppingState extends State { 4426 @Override 4427 public void enter() { 4428 /* Send any reset commands to supplicant before shutting it down */ 4429 handleNetworkDisconnect(); 4430 4431 String suppState = System.getProperty("init.svc.wpa_supplicant"); 4432 if (suppState == null) suppState = "unknown"; 4433 4434 logd("SupplicantStoppingState: stopSupplicant " 4435 + " init.svc.wpa_supplicant=" + suppState); 4436 mWifiMonitor.stopSupplicant(); 4437 4438 /* Send ourselves a delayed message to indicate failure after a wait time */ 4439 sendMessageDelayed(obtainMessage(CMD_STOP_SUPPLICANT_FAILED, 4440 ++mSupplicantStopFailureToken, 0), SUPPLICANT_RESTART_INTERVAL_MSECS); 4441 setWifiState(WIFI_STATE_DISABLING); 4442 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 4443 } 4444 @Override 4445 public boolean processMessage(Message message) { 4446 logStateAndMessage(message, this); 4447 4448 switch(message.what) { 4449 case WifiMonitor.SUP_CONNECTION_EVENT: 4450 loge("Supplicant connection received while stopping"); 4451 break; 4452 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4453 if (mVerboseLoggingEnabled) log("Supplicant connection lost"); 4454 handleSupplicantConnectionLoss(false); 4455 transitionTo(mInitialState); 4456 break; 4457 case CMD_STOP_SUPPLICANT_FAILED: 4458 if (message.arg1 == mSupplicantStopFailureToken) { 4459 loge("Timed out on a supplicant stop, kill and proceed"); 4460 handleSupplicantConnectionLoss(true); 4461 transitionTo(mInitialState); 4462 } 4463 break; 4464 case CMD_START_SUPPLICANT: 4465 case CMD_STOP_SUPPLICANT: 4466 case CMD_START_AP: 4467 case CMD_STOP_AP: 4468 case CMD_SET_OPERATIONAL_MODE: 4469 deferMessage(message); 4470 break; 4471 default: 4472 return NOT_HANDLED; 4473 } 4474 return HANDLED; 4475 } 4476 } 4477 4478 class WaitForP2pDisableState extends State { 4479 private State mTransitionToState; 4480 @Override 4481 public void enter() { 4482 switch (getCurrentMessage().what) { 4483 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4484 mTransitionToState = mInitialState; 4485 break; 4486 case CMD_STOP_SUPPLICANT: 4487 default: 4488 mTransitionToState = mSupplicantStoppingState; 4489 break; 4490 } 4491 p2pSendMessage(WifiStateMachine.CMD_DISABLE_P2P_REQ); 4492 } 4493 @Override 4494 public boolean processMessage(Message message) { 4495 logStateAndMessage(message, this); 4496 4497 switch(message.what) { 4498 case WifiStateMachine.CMD_DISABLE_P2P_RSP: 4499 transitionTo(mTransitionToState); 4500 break; 4501 /* Defer wifi start/shut and driver commands */ 4502 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4503 case CMD_START_SUPPLICANT: 4504 case CMD_STOP_SUPPLICANT: 4505 case CMD_START_AP: 4506 case CMD_STOP_AP: 4507 case CMD_SET_OPERATIONAL_MODE: 4508 case CMD_START_SCAN: 4509 case CMD_DISCONNECT: 4510 case CMD_REASSOCIATE: 4511 case CMD_RECONNECT: 4512 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 4513 deferMessage(message); 4514 break; 4515 default: 4516 return NOT_HANDLED; 4517 } 4518 return HANDLED; 4519 } 4520 } 4521 4522 class ScanModeState extends State { 4523 private int mLastOperationMode; 4524 @Override 4525 public void enter() { 4526 mLastOperationMode = mOperationalMode; 4527 } 4528 @Override 4529 public boolean processMessage(Message message) { 4530 logStateAndMessage(message, this); 4531 4532 switch(message.what) { 4533 case CMD_SET_OPERATIONAL_MODE: 4534 if (message.arg1 == CONNECT_MODE) { 4535 if (mLastOperationMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 4536 setWifiState(WIFI_STATE_ENABLED); 4537 // Load and re-enable networks when going back to enabled state 4538 // This is essential for networks to show up after restore 4539 mWifiConfigManager.loadFromStore(); 4540 p2pSendMessage(CMD_ENABLE_P2P); 4541 } 4542 mOperationalMode = CONNECT_MODE; 4543 transitionTo(mDisconnectedState); 4544 } else if (message.arg1 == DISABLED_MODE) { 4545 transitionTo(mSupplicantStoppingState); 4546 } 4547 // Nothing to do 4548 break; 4549 // Handle scan. All the connection related commands are 4550 // handled only in ConnectModeState 4551 case CMD_START_SCAN: 4552 handleScanRequest(message); 4553 break; 4554 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4555 SupplicantState state = handleSupplicantStateChange(message); 4556 if (mVerboseLoggingEnabled) log("SupplicantState= " + state); 4557 break; 4558 default: 4559 return NOT_HANDLED; 4560 } 4561 return HANDLED; 4562 } 4563 } 4564 4565 4566 String smToString(Message message) { 4567 return smToString(message.what); 4568 } 4569 4570 String smToString(int what) { 4571 String s = sSmToString.get(what); 4572 if (s != null) { 4573 return s; 4574 } 4575 switch (what) { 4576 case WifiMonitor.DRIVER_HUNG_EVENT: 4577 s = "DRIVER_HUNG_EVENT"; 4578 break; 4579 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: 4580 s = "AsyncChannel.CMD_CHANNEL_HALF_CONNECTED"; 4581 break; 4582 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: 4583 s = "AsyncChannel.CMD_CHANNEL_DISCONNECTED"; 4584 break; 4585 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 4586 s = "WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST"; 4587 break; 4588 case WifiManager.DISABLE_NETWORK: 4589 s = "WifiManager.DISABLE_NETWORK"; 4590 break; 4591 case WifiManager.CONNECT_NETWORK: 4592 s = "CONNECT_NETWORK"; 4593 break; 4594 case WifiManager.SAVE_NETWORK: 4595 s = "SAVE_NETWORK"; 4596 break; 4597 case WifiManager.FORGET_NETWORK: 4598 s = "FORGET_NETWORK"; 4599 break; 4600 case WifiMonitor.SUP_CONNECTION_EVENT: 4601 s = "SUP_CONNECTION_EVENT"; 4602 break; 4603 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4604 s = "SUP_DISCONNECTION_EVENT"; 4605 break; 4606 case WifiMonitor.SCAN_RESULTS_EVENT: 4607 s = "SCAN_RESULTS_EVENT"; 4608 break; 4609 case WifiMonitor.SCAN_FAILED_EVENT: 4610 s = "SCAN_FAILED_EVENT"; 4611 break; 4612 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4613 s = "SUPPLICANT_STATE_CHANGE_EVENT"; 4614 break; 4615 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 4616 s = "AUTHENTICATION_FAILURE_EVENT"; 4617 break; 4618 case WifiMonitor.SSID_TEMP_DISABLED: 4619 s = "SSID_TEMP_DISABLED"; 4620 break; 4621 case WifiMonitor.SSID_REENABLED: 4622 s = "SSID_REENABLED"; 4623 break; 4624 case WifiMonitor.WPS_SUCCESS_EVENT: 4625 s = "WPS_SUCCESS_EVENT"; 4626 break; 4627 case WifiMonitor.WPS_FAIL_EVENT: 4628 s = "WPS_FAIL_EVENT"; 4629 break; 4630 case WifiMonitor.SUP_REQUEST_IDENTITY: 4631 s = "SUP_REQUEST_IDENTITY"; 4632 break; 4633 case WifiMonitor.NETWORK_CONNECTION_EVENT: 4634 s = "NETWORK_CONNECTION_EVENT"; 4635 break; 4636 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 4637 s = "NETWORK_DISCONNECTION_EVENT"; 4638 break; 4639 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 4640 s = "ASSOCIATION_REJECTION_EVENT"; 4641 break; 4642 case WifiMonitor.ANQP_DONE_EVENT: 4643 s = "WifiMonitor.ANQP_DONE_EVENT"; 4644 break; 4645 case WifiMonitor.RX_HS20_ANQP_ICON_EVENT: 4646 s = "WifiMonitor.RX_HS20_ANQP_ICON_EVENT"; 4647 break; 4648 case WifiMonitor.GAS_QUERY_DONE_EVENT: 4649 s = "WifiMonitor.GAS_QUERY_DONE_EVENT"; 4650 break; 4651 case WifiMonitor.HS20_REMEDIATION_EVENT: 4652 s = "WifiMonitor.HS20_REMEDIATION_EVENT"; 4653 break; 4654 case WifiMonitor.GAS_QUERY_START_EVENT: 4655 s = "WifiMonitor.GAS_QUERY_START_EVENT"; 4656 break; 4657 case WifiP2pServiceImpl.GROUP_CREATING_TIMED_OUT: 4658 s = "GROUP_CREATING_TIMED_OUT"; 4659 break; 4660 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 4661 s = "P2P_CONNECTION_CHANGED"; 4662 break; 4663 case WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE: 4664 s = "P2P.DISCONNECT_WIFI_RESPONSE"; 4665 break; 4666 case WifiP2pServiceImpl.SET_MIRACAST_MODE: 4667 s = "P2P.SET_MIRACAST_MODE"; 4668 break; 4669 case WifiP2pServiceImpl.BLOCK_DISCOVERY: 4670 s = "P2P.BLOCK_DISCOVERY"; 4671 break; 4672 case WifiManager.CANCEL_WPS: 4673 s = "CANCEL_WPS"; 4674 break; 4675 case WifiManager.CANCEL_WPS_FAILED: 4676 s = "CANCEL_WPS_FAILED"; 4677 break; 4678 case WifiManager.CANCEL_WPS_SUCCEDED: 4679 s = "CANCEL_WPS_SUCCEDED"; 4680 break; 4681 case WifiManager.START_WPS: 4682 s = "START_WPS"; 4683 break; 4684 case WifiManager.START_WPS_SUCCEEDED: 4685 s = "START_WPS_SUCCEEDED"; 4686 break; 4687 case WifiManager.WPS_FAILED: 4688 s = "WPS_FAILED"; 4689 break; 4690 case WifiManager.WPS_COMPLETED: 4691 s = "WPS_COMPLETED"; 4692 break; 4693 case WifiManager.RSSI_PKTCNT_FETCH: 4694 s = "RSSI_PKTCNT_FETCH"; 4695 break; 4696 default: 4697 s = "what:" + Integer.toString(what); 4698 break; 4699 } 4700 return s; 4701 } 4702 4703 void registerConnected() { 4704 if (mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 4705 mWifiConfigManager.updateNetworkAfterConnect(mLastNetworkId); 4706 // On connect, reset wifiScoreReport 4707 mWifiScoreReport.reset(); 4708 } 4709 } 4710 4711 void registerDisconnected() { 4712 if (mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 4713 mWifiConfigManager.updateNetworkAfterDisconnect(mLastNetworkId); 4714 // We are switching away from this configuration, 4715 // hence record the time we were connected last 4716 WifiConfiguration config = mWifiConfigManager.getConfiguredNetwork(mLastNetworkId); 4717 if (config != null) { 4718 // Remove WifiConfiguration for ephemeral or Passpoint networks, since they're 4719 // temporary networks. 4720 if (config.ephemeral || config.isPasspoint()) { 4721 mWifiConfigManager.removeNetwork(mLastNetworkId, Process.WIFI_UID); 4722 } 4723 } 4724 } 4725 } 4726 4727 /** 4728 * Returns Wificonfiguration object correponding to the currently connected network, null if 4729 * not connected. 4730 */ 4731 public WifiConfiguration getCurrentWifiConfiguration() { 4732 if (mLastNetworkId == WifiConfiguration.INVALID_NETWORK_ID) { 4733 return null; 4734 } 4735 return mWifiConfigManager.getConfiguredNetwork(mLastNetworkId); 4736 } 4737 4738 ScanResult getCurrentScanResult() { 4739 WifiConfiguration config = getCurrentWifiConfiguration(); 4740 if (config == null) { 4741 return null; 4742 } 4743 String BSSID = mWifiInfo.getBSSID(); 4744 if (BSSID == null) { 4745 BSSID = mTargetRoamBSSID; 4746 } 4747 ScanDetailCache scanDetailCache = 4748 mWifiConfigManager.getScanDetailCacheForNetwork(config.networkId); 4749 4750 if (scanDetailCache == null) { 4751 return null; 4752 } 4753 4754 return scanDetailCache.get(BSSID); 4755 } 4756 4757 String getCurrentBSSID() { 4758 if (isLinkDebouncing()) { 4759 return null; 4760 } 4761 return mLastBssid; 4762 } 4763 4764 class ConnectModeState extends State { 4765 4766 @Override 4767 public void enter() { 4768 // Let the system know that wifi is available in client mode. 4769 setWifiState(WIFI_STATE_ENABLED); 4770 4771 mNetworkInfo.setIsAvailable(true); 4772 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4773 4774 // initialize network state 4775 setNetworkDetailedState(DetailedState.DISCONNECTED); 4776 4777 4778 // Inform WifiConnectivityManager that Wifi is enabled 4779 mWifiConnectivityManager.setWifiEnabled(true); 4780 // Inform metrics that Wifi is Enabled (but not yet connected) 4781 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_DISCONNECTED); 4782 } 4783 4784 @Override 4785 public void exit() { 4786 // Let the system know that wifi is not available since we are exiting client mode. 4787 mNetworkInfo.setIsAvailable(false); 4788 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4789 // Inform WifiConnectivityManager that Wifi is disabled 4790 mWifiConnectivityManager.setWifiEnabled(false); 4791 // Inform metrics that Wifi is being disabled (Toggled, airplane enabled, etc) 4792 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_DISABLED); 4793 } 4794 4795 @Override 4796 public boolean processMessage(Message message) { 4797 WifiConfiguration config; 4798 int netId; 4799 boolean ok; 4800 boolean didDisconnect; 4801 String bssid; 4802 String ssid; 4803 NetworkUpdateResult result; 4804 Set<Integer> removedNetworkIds; 4805 int reasonCode; 4806 logStateAndMessage(message, this); 4807 4808 switch (message.what) { 4809 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 4810 mWifiDiagnostics.captureBugReportData( 4811 WifiDiagnostics.REPORT_REASON_ASSOC_FAILURE); 4812 didBlackListBSSID = false; 4813 bssid = (String) message.obj; 4814 reasonCode = message.arg2; 4815 if (bssid == null || TextUtils.isEmpty(bssid)) { 4816 // If BSSID is null, use the target roam BSSID 4817 bssid = mTargetRoamBSSID; 4818 } 4819 if (bssid != null) { 4820 // If we have a BSSID, tell configStore to black list it 4821 didBlackListBSSID = mWifiConnectivityManager.trackBssid(bssid, false, 4822 reasonCode); 4823 } 4824 mWifiConfigManager.updateNetworkSelectionStatus(mTargetNetworkId, 4825 WifiConfiguration.NetworkSelectionStatus 4826 .DISABLED_ASSOCIATION_REJECTION); 4827 mSupplicantStateTracker.sendMessage(WifiMonitor.ASSOCIATION_REJECTION_EVENT); 4828 //If rejection occurred while Metrics is tracking a ConnnectionEvent, end it. 4829 reportConnectionAttemptEnd( 4830 WifiMetrics.ConnectionEvent.FAILURE_ASSOCIATION_REJECTION, 4831 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4832 mWifiInjector.getWifiLastResortWatchdog() 4833 .noteConnectionFailureAndTriggerIfNeeded( 4834 getTargetSsid(), bssid, 4835 WifiLastResortWatchdog.FAILURE_CODE_ASSOCIATION); 4836 break; 4837 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 4838 mWifiDiagnostics.captureBugReportData( 4839 WifiDiagnostics.REPORT_REASON_AUTH_FAILURE); 4840 mSupplicantStateTracker.sendMessage(WifiMonitor.AUTHENTICATION_FAILURE_EVENT); 4841 if (mTargetNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 4842 mWifiConfigManager.updateNetworkSelectionStatus(mTargetNetworkId, 4843 WifiConfiguration.NetworkSelectionStatus 4844 .DISABLED_AUTHENTICATION_FAILURE); 4845 } 4846 //If failure occurred while Metrics is tracking a ConnnectionEvent, end it. 4847 reportConnectionAttemptEnd( 4848 WifiMetrics.ConnectionEvent.FAILURE_AUTHENTICATION_FAILURE, 4849 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4850 mWifiInjector.getWifiLastResortWatchdog() 4851 .noteConnectionFailureAndTriggerIfNeeded( 4852 getTargetSsid(), mTargetRoamBSSID, 4853 WifiLastResortWatchdog.FAILURE_CODE_AUTHENTICATION); 4854 break; 4855 case WifiMonitor.SSID_TEMP_DISABLED: 4856 netId = lookupFrameworkNetworkId(message.arg1); 4857 Log.e(TAG, "Supplicant SSID temporary disabled:" 4858 + mWifiConfigManager.getConfiguredNetwork(netId)); 4859 mWifiConfigManager.updateNetworkSelectionStatus( 4860 netId, 4861 WifiConfiguration.NetworkSelectionStatus 4862 .DISABLED_AUTHENTICATION_FAILURE); 4863 reportConnectionAttemptEnd( 4864 WifiMetrics.ConnectionEvent.FAILURE_SSID_TEMP_DISABLED, 4865 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4866 mWifiInjector.getWifiLastResortWatchdog() 4867 .noteConnectionFailureAndTriggerIfNeeded( 4868 getTargetSsid(), mTargetRoamBSSID, 4869 WifiLastResortWatchdog.FAILURE_CODE_AUTHENTICATION); 4870 break; 4871 case WifiMonitor.SSID_REENABLED: 4872 netId = lookupFrameworkNetworkId(message.arg1); 4873 Log.d(TAG, "Supplicant SSID reenable:" 4874 + mWifiConfigManager.getConfiguredNetwork(netId)); 4875 // Do not re-enable it in Quality Network Selection since framework has its own 4876 // Algorithm of disable/enable 4877 break; 4878 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4879 SupplicantState state = handleSupplicantStateChange(message); 4880 // A driver/firmware hang can now put the interface in a down state. 4881 // We detect the interface going down and recover from it 4882 if (!SupplicantState.isDriverActive(state)) { 4883 if (mNetworkInfo.getState() != NetworkInfo.State.DISCONNECTED) { 4884 handleNetworkDisconnect(); 4885 } 4886 log("Detected an interface down, restart driver"); 4887 // Rely on the fact that this will force us into killing supplicant and then 4888 // restart supplicant from a clean state. 4889 transitionTo(mSupplicantStoppingState); 4890 sendMessage(CMD_START_SUPPLICANT); 4891 break; 4892 } 4893 4894 // Supplicant can fail to report a NETWORK_DISCONNECTION_EVENT 4895 // when authentication times out after a successful connection, 4896 // we can figure this from the supplicant state. If supplicant 4897 // state is DISCONNECTED, but the mNetworkInfo says we are not 4898 // disconnected, we need to handle a disconnection 4899 if (!isLinkDebouncing() && state == SupplicantState.DISCONNECTED && 4900 mNetworkInfo.getState() != NetworkInfo.State.DISCONNECTED) { 4901 if (mVerboseLoggingEnabled) { 4902 log("Missed CTRL-EVENT-DISCONNECTED, disconnect"); 4903 } 4904 handleNetworkDisconnect(); 4905 transitionTo(mDisconnectedState); 4906 } 4907 4908 // If we have COMPLETED a connection to a BSSID, start doing 4909 // DNAv4/DNAv6 -style probing for on-link neighbors of 4910 // interest (e.g. routers); harmless if none are configured. 4911 if (state == SupplicantState.COMPLETED) { 4912 mIpManager.confirmConfiguration(); 4913 } 4914 break; 4915 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 4916 if (message.arg1 == 1) { 4917 mWifiNative.disconnect(); 4918 mTemporarilyDisconnectWifi = true; 4919 } else { 4920 mWifiNative.reconnect(); 4921 mTemporarilyDisconnectWifi = false; 4922 } 4923 break; 4924 case CMD_ADD_OR_UPDATE_NETWORK: 4925 config = (WifiConfiguration) message.obj; 4926 result = mWifiConfigManager.addOrUpdateNetwork(config, message.sendingUid); 4927 if (!result.isSuccess()) { 4928 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4929 } 4930 replyToMessage(message, message.what, result.getNetworkId()); 4931 break; 4932 case CMD_REMOVE_NETWORK: 4933 netId = message.arg1; 4934 ok = mWifiConfigManager.removeNetwork(message.arg1, message.sendingUid); 4935 if (!ok) { 4936 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4937 } else if (netId == mTargetNetworkId || netId == mLastNetworkId) { 4938 // Disconnect and let autojoin reselect a new network 4939 sendMessage(CMD_DISCONNECT); 4940 } 4941 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 4942 break; 4943 case CMD_ENABLE_NETWORK: 4944 boolean disableOthers = message.arg2 == 1; 4945 netId = message.arg1; 4946 if (disableOthers) { 4947 // If the app has all the necessary permissions, this will trigger a connect 4948 // attempt. 4949 ok = connectToUserSelectNetwork(netId, message.sendingUid); 4950 } else { 4951 ok = mWifiConfigManager.enableNetwork(netId, false, message.sendingUid); 4952 } 4953 if (!ok) { 4954 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4955 } 4956 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 4957 break; 4958 case WifiManager.DISABLE_NETWORK: 4959 netId = message.arg1; 4960 if (mWifiConfigManager.disableNetwork(netId, message.sendingUid)) { 4961 replyToMessage(message, WifiManager.DISABLE_NETWORK_SUCCEEDED); 4962 if (netId == mTargetNetworkId || netId == mLastNetworkId) { 4963 // Disconnect and let autojoin reselect a new network 4964 sendMessage(CMD_DISCONNECT); 4965 } 4966 } else { 4967 loge("Failed to remove network"); 4968 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4969 replyToMessage(message, WifiManager.DISABLE_NETWORK_FAILED, 4970 WifiManager.ERROR); 4971 } 4972 break; 4973 case CMD_DISABLE_EPHEMERAL_NETWORK: 4974 config = mWifiConfigManager.disableEphemeralNetwork((String)message.obj); 4975 if (config != null) { 4976 if (config.networkId == mTargetNetworkId 4977 || config.networkId == mLastNetworkId) { 4978 // Disconnect and let autojoin reselect a new network 4979 sendMessage(CMD_DISCONNECT); 4980 } 4981 } 4982 break; 4983 case CMD_SAVE_CONFIG: 4984 ok = mWifiConfigManager.saveToStore(true); 4985 replyToMessage(message, CMD_SAVE_CONFIG, ok ? SUCCESS : FAILURE); 4986 // Inform the backup manager about a data change 4987 mBackupManagerProxy.notifyDataChanged(); 4988 break; 4989 case CMD_GET_CONFIGURED_NETWORKS: 4990 replyToMessage(message, message.what, 4991 mWifiConfigManager.getSavedNetworks()); 4992 break; 4993 case WifiMonitor.SUP_REQUEST_IDENTITY: 4994 int supplicantNetworkId = message.arg2; 4995 netId = lookupFrameworkNetworkId(supplicantNetworkId); 4996 boolean identitySent = false; 4997 int eapMethod = WifiEnterpriseConfig.Eap.NONE; 4998 if (targetWificonfiguration != null 4999 && targetWificonfiguration.enterpriseConfig != null) { 5000 eapMethod = targetWificonfiguration.enterpriseConfig.getEapMethod(); 5001 } 5002 // For SIM & AKA/AKA' EAP method Only, get identity from ICC 5003 if (targetWificonfiguration != null 5004 && targetWificonfiguration.networkId == netId 5005 && (targetWificonfiguration.allowedKeyManagement 5006 .get(WifiConfiguration.KeyMgmt.WPA_EAP) 5007 || targetWificonfiguration.allowedKeyManagement 5008 .get(WifiConfiguration.KeyMgmt.IEEE8021X)) 5009 && TelephonyUtil.isSimEapMethod(eapMethod)) { 5010 String identity = 5011 TelephonyUtil.getSimIdentity(getTelephonyManager(), eapMethod); 5012 if (identity != null) { 5013 mWifiNative.simIdentityResponse(supplicantNetworkId, identity); 5014 identitySent = true; 5015 } 5016 } 5017 if (!identitySent) { 5018 // Supplicant lacks credentials to connect to that network, hence black list 5019 ssid = (String) message.obj; 5020 if (targetWificonfiguration != null && ssid != null 5021 && targetWificonfiguration.SSID != null 5022 && targetWificonfiguration.SSID.equals("\"" + ssid + "\"")) { 5023 mWifiConfigManager.updateNetworkSelectionStatus( 5024 targetWificonfiguration.networkId, 5025 WifiConfiguration.NetworkSelectionStatus 5026 .DISABLED_AUTHENTICATION_NO_CREDENTIALS); 5027 } 5028 mWifiNative.disconnect(); 5029 } 5030 break; 5031 case WifiMonitor.SUP_REQUEST_SIM_AUTH: 5032 logd("Received SUP_REQUEST_SIM_AUTH"); 5033 SimAuthRequestData requestData = (SimAuthRequestData) message.obj; 5034 if (requestData != null) { 5035 if (requestData.protocol == WifiEnterpriseConfig.Eap.SIM) { 5036 handleGsmAuthRequest(requestData); 5037 } else if (requestData.protocol == WifiEnterpriseConfig.Eap.AKA 5038 || requestData.protocol == WifiEnterpriseConfig.Eap.AKA_PRIME) { 5039 handle3GAuthRequest(requestData); 5040 } 5041 } else { 5042 loge("Invalid sim auth request"); 5043 } 5044 break; 5045 case CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS: 5046 replyToMessage(message, message.what, 5047 mWifiConfigManager.getConfiguredNetworksWithPasswords()); 5048 break; 5049 case CMD_GET_MATCHING_CONFIG: 5050 // TODO(b/31065385) 5051 replyToMessage(message, message.what, null); 5052 break; 5053 case CMD_RECONNECT: 5054 mWifiConnectivityManager.forceConnectivityScan(); 5055 break; 5056 case CMD_REASSOCIATE: 5057 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 5058 mWifiNative.reassociate(); 5059 break; 5060 case CMD_RELOAD_TLS_AND_RECONNECT: 5061 if (mWifiConfigManager.needsUnlockedKeyStore()) { 5062 logd("Reconnecting to give a chance to un-connected TLS networks"); 5063 mWifiNative.disconnect(); 5064 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 5065 mWifiNative.reconnect(); 5066 } 5067 break; 5068 case CMD_START_ROAM: 5069 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 5070 return HANDLED; 5071 case CMD_START_CONNECT: 5072 /* connect command coming from auto-join */ 5073 netId = message.arg1; 5074 bssid = (String) message.obj; 5075 config = mWifiConfigManager.getConfiguredNetworkWithPassword(netId); 5076 logd("CMD_START_CONNECT sup state " 5077 + mSupplicantStateTracker.getSupplicantStateName() 5078 + " my state " + getCurrentState().getName() 5079 + " nid=" + Integer.toString(netId) 5080 + " roam=" + Boolean.toString(mAutoRoaming)); 5081 if (config == null) { 5082 loge("CMD_START_CONNECT and no config, bail out..."); 5083 break; 5084 } 5085 mTargetNetworkId = netId; 5086 setTargetBssid(config, bssid); 5087 5088 mWifiMetrics.startConnectionEvent(config, mTargetRoamBSSID, 5089 WifiMetricsProto.ConnectionEvent.ROAM_UNRELATED); 5090 boolean shouldDisconnect = (getCurrentState() != mDisconnectedState); 5091 if (mWifiSupplicantControl.connectToNetwork(config, shouldDisconnect)) { 5092 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 5093 targetWificonfiguration = config; 5094 mAutoRoaming = false; 5095 if (isRoaming() || isLinkDebouncing()) { 5096 transitionTo(mRoamingState); 5097 } else if (shouldDisconnect) { 5098 transitionTo(mDisconnectingState); 5099 } else { 5100 transitionTo(mDisconnectedState); 5101 } 5102 } else { 5103 loge("CMD_START_CONNECT Failed to start connection to network " + config); 5104 reportConnectionAttemptEnd( 5105 WifiMetrics.ConnectionEvent.FAILURE_CONNECT_NETWORK_FAILED, 5106 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5107 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 5108 WifiManager.ERROR); 5109 break; 5110 } 5111 break; 5112 case CMD_REMOVE_APP_CONFIGURATIONS: 5113 removedNetworkIds = 5114 mWifiConfigManager.removeNetworksForApp((ApplicationInfo) message.obj); 5115 if (removedNetworkIds.contains(mTargetNetworkId) || 5116 removedNetworkIds.contains(mLastNetworkId)) { 5117 // Disconnect and let autojoin reselect a new network. 5118 sendMessage(CMD_DISCONNECT); 5119 } 5120 break; 5121 case CMD_REMOVE_USER_CONFIGURATIONS: 5122 removedNetworkIds = 5123 mWifiConfigManager.removeNetworksForUser((Integer) message.arg1); 5124 if (removedNetworkIds.contains(mTargetNetworkId) || 5125 removedNetworkIds.contains(mLastNetworkId)) { 5126 // Disconnect and let autojoin reselect a new network. 5127 sendMessage(CMD_DISCONNECT); 5128 } 5129 break; 5130 case WifiManager.CONNECT_NETWORK: 5131 /** 5132 * The connect message can contain a network id passed as arg1 on message or 5133 * or a config passed as obj on message. 5134 * For a new network, a config is passed to create and connect. 5135 * For an existing network, a network id is passed 5136 */ 5137 netId = message.arg1; 5138 config = (WifiConfiguration) message.obj; 5139 mWifiConnectionStatistics.numWifiManagerJoinAttempt++; 5140 // New network addition. 5141 if (config != null) { 5142 result = mWifiConfigManager.addOrUpdateNetwork(config, message.sendingUid); 5143 if (!result.isSuccess()) { 5144 loge("CONNECT_NETWORK adding/updating config=" + config + " failed"); 5145 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5146 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 5147 WifiManager.ERROR); 5148 break; 5149 } 5150 netId = result.getNetworkId(); 5151 } 5152 if (!connectToUserSelectNetwork(netId, message.sendingUid)) { 5153 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5154 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 5155 WifiManager.NOT_AUTHORIZED); 5156 break; 5157 } 5158 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_SAVED, config); 5159 replyToMessage(message, WifiManager.CONNECT_NETWORK_SUCCEEDED); 5160 break; 5161 case WifiManager.SAVE_NETWORK: 5162 config = (WifiConfiguration) message.obj; 5163 mWifiConnectionStatistics.numWifiManagerJoinAttempt++; 5164 if (config == null) { 5165 loge("SAVE_NETWORK with null configuration" 5166 + mSupplicantStateTracker.getSupplicantStateName() 5167 + " my state " + getCurrentState().getName()); 5168 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5169 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5170 WifiManager.ERROR); 5171 break; 5172 } 5173 result = mWifiConfigManager.addOrUpdateNetwork(config, message.sendingUid); 5174 if (!result.isSuccess()) { 5175 loge("SAVE_NETWORK adding/updating config=" + config + " failed"); 5176 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5177 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5178 WifiManager.ERROR); 5179 break; 5180 } 5181 netId = result.getNetworkId(); 5182 if (mWifiInfo.getNetworkId() == netId) { 5183 if (result.hasIpChanged()) { 5184 // The currently connection configuration was changed 5185 // We switched from DHCP to static or from static to DHCP, or the 5186 // static IP address has changed. 5187 log("Reconfiguring IP on connection"); 5188 // TODO: clear addresses and disable IPv6 5189 // to simplify obtainingIpState. 5190 transitionTo(mObtainingIpState); 5191 } 5192 if (result.hasProxyChanged()) { 5193 log("Reconfiguring proxy on connection"); 5194 mIpManager.setHttpProxy( 5195 getCurrentWifiConfiguration().getHttpProxy()); 5196 } 5197 } else { 5198 if (!connectToUserSelectNetwork(netId, message.sendingUid)) { 5199 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5200 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5201 WifiManager.NOT_AUTHORIZED); 5202 break; 5203 } 5204 } 5205 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_SAVED, config); 5206 replyToMessage(message, WifiManager.SAVE_NETWORK_SUCCEEDED); 5207 break; 5208 case WifiManager.FORGET_NETWORK: 5209 netId = message.arg1; 5210 if (mWifiConfigManager.removeNetwork(netId, message.sendingUid)) { 5211 replyToMessage(message, WifiManager.FORGET_NETWORK_SUCCEEDED); 5212 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_FORGOT, 5213 (WifiConfiguration) message.obj); 5214 if (netId == mTargetNetworkId || netId == mLastNetworkId) { 5215 // Disconnect and let autojoin reselect a new network 5216 sendMessage(CMD_DISCONNECT); 5217 } 5218 } else { 5219 loge("Failed to forget network"); 5220 replyToMessage(message, WifiManager.FORGET_NETWORK_FAILED, 5221 WifiManager.ERROR); 5222 } 5223 break; 5224 case WifiManager.START_WPS: 5225 WpsInfo wpsInfo = (WpsInfo) message.obj; 5226 WpsResult wpsResult; 5227 switch (wpsInfo.setup) { 5228 case WpsInfo.PBC: 5229 wpsResult = mWifiSupplicantControl.startWpsPbc(wpsInfo); 5230 break; 5231 case WpsInfo.KEYPAD: 5232 wpsResult = 5233 mWifiSupplicantControl.startWpsWithPinFromAccessPoint(wpsInfo); 5234 break; 5235 case WpsInfo.DISPLAY: 5236 wpsResult = mWifiSupplicantControl.startWpsWithPinFromDevice(wpsInfo); 5237 break; 5238 default: 5239 wpsResult = new WpsResult(Status.FAILURE); 5240 loge("Invalid setup for WPS"); 5241 break; 5242 } 5243 if (wpsResult.status == Status.SUCCESS) { 5244 replyToMessage(message, WifiManager.START_WPS_SUCCEEDED, wpsResult); 5245 transitionTo(mWpsRunningState); 5246 } else { 5247 loge("Failed to start WPS with config " + wpsInfo.toString()); 5248 replyToMessage(message, WifiManager.WPS_FAILED, WifiManager.ERROR); 5249 } 5250 break; 5251 case CMD_ASSOCIATED_BSSID: 5252 // This is where we can confirm the connection BSSID. Use it to find the 5253 // right ScanDetail to populate metrics. 5254 String someBssid = (String) message.obj; 5255 if (someBssid != null) { 5256 // Get the ScanDetail associated with this BSSID. 5257 ScanDetailCache scanDetailCache = 5258 mWifiConfigManager.getScanDetailCacheForNetwork(mTargetNetworkId); 5259 if (scanDetailCache != null) { 5260 mWifiMetrics.setConnectionScanDetail(scanDetailCache.getScanDetail( 5261 someBssid)); 5262 } 5263 } 5264 return NOT_HANDLED; 5265 case WifiMonitor.NETWORK_CONNECTION_EVENT: 5266 if (mVerboseLoggingEnabled) log("Network connection established"); 5267 mLastNetworkId = lookupFrameworkNetworkId(message.arg1); 5268 mLastBssid = (String) message.obj; 5269 reasonCode = message.arg2; 5270 // TODO: This check should not be needed after WifiStateMachinePrime refactor. 5271 // Currently, the last connected network configuration is left in 5272 // wpa_supplicant, this may result in wpa_supplicant initiating connection 5273 // to it after a config store reload. Hence the old network Id lookups may not 5274 // work, so disconnect the network and let network selector reselect a new 5275 // network. 5276 if (getCurrentWifiConfiguration() != null) { 5277 mWifiInfo.setBSSID(mLastBssid); 5278 mWifiInfo.setNetworkId(mLastNetworkId); 5279 mWifiConnectivityManager.trackBssid(mLastBssid, true, reasonCode); 5280 sendNetworkStateChangeBroadcast(mLastBssid); 5281 transitionTo(mObtainingIpState); 5282 } else { 5283 logw("Connected to unknown networkId " + mLastNetworkId 5284 + ", disconnecting..."); 5285 sendMessage(CMD_DISCONNECT); 5286 } 5287 break; 5288 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 5289 // Calling handleNetworkDisconnect here is redundant because we might already 5290 // have called it when leaving L2ConnectedState to go to disconnecting state 5291 // or thru other path 5292 // We should normally check the mWifiInfo or mLastNetworkId so as to check 5293 // if they are valid, and only in this case call handleNEtworkDisconnect, 5294 // TODO: this should be fixed for a L MR release 5295 // The side effect of calling handleNetworkDisconnect twice is that a bunch of 5296 // idempotent commands are executed twice (stopping Dhcp, enabling the SPS mode 5297 // at the chip etc... 5298 if (mVerboseLoggingEnabled) log("ConnectModeState: Network connection lost "); 5299 handleNetworkDisconnect(); 5300 transitionTo(mDisconnectedState); 5301 break; 5302 case CMD_QUERY_OSU_ICON: 5303 mPasspointManager.queryPasspointIcon( 5304 ((Bundle) message.obj).getLong(EXTRA_OSU_ICON_QUERY_BSSID), 5305 ((Bundle) message.obj).getString(EXTRA_OSU_ICON_QUERY_FILENAME)); 5306 break; 5307 case CMD_MATCH_PROVIDER_NETWORK: 5308 // TODO(b/31065385): Passpoint config management. 5309 replyToMessage(message, message.what, 0); 5310 break; 5311 default: 5312 return NOT_HANDLED; 5313 } 5314 return HANDLED; 5315 } 5316 } 5317 5318 private void updateCapabilities(WifiConfiguration config) { 5319 NetworkCapabilities networkCapabilities = new NetworkCapabilities(mDfltNetworkCapabilities); 5320 if (config != null) { 5321 if (config.ephemeral) { 5322 networkCapabilities.removeCapability( 5323 NetworkCapabilities.NET_CAPABILITY_TRUSTED); 5324 } else { 5325 networkCapabilities.addCapability( 5326 NetworkCapabilities.NET_CAPABILITY_TRUSTED); 5327 } 5328 5329 networkCapabilities.setSignalStrength( 5330 (mWifiInfo.getRssi() != WifiInfo.INVALID_RSSI) 5331 ? mWifiInfo.getRssi() 5332 : NetworkCapabilities.SIGNAL_STRENGTH_UNSPECIFIED); 5333 } 5334 5335 if (mWifiInfo.getMeteredHint()) { 5336 networkCapabilities.removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 5337 } 5338 5339 mNetworkAgent.sendNetworkCapabilities(networkCapabilities); 5340 } 5341 5342 private class WifiNetworkAgent extends NetworkAgent { 5343 public WifiNetworkAgent(Looper l, Context c, String TAG, NetworkInfo ni, 5344 NetworkCapabilities nc, LinkProperties lp, int score, NetworkMisc misc) { 5345 super(l, c, TAG, ni, nc, lp, score, misc); 5346 } 5347 5348 @Override 5349 protected void unwanted() { 5350 // Ignore if we're not the current networkAgent. 5351 if (this != mNetworkAgent) return; 5352 if (mVerboseLoggingEnabled) { 5353 log("WifiNetworkAgent -> Wifi unwanted score " + Integer.toString(mWifiInfo.score)); 5354 } 5355 unwantedNetwork(NETWORK_STATUS_UNWANTED_DISCONNECT); 5356 } 5357 5358 @Override 5359 protected void networkStatus(int status, String redirectUrl) { 5360 if (this != mNetworkAgent) return; 5361 if (status == NetworkAgent.INVALID_NETWORK) { 5362 if (mVerboseLoggingEnabled) { 5363 log("WifiNetworkAgent -> Wifi networkStatus invalid, score=" 5364 + Integer.toString(mWifiInfo.score)); 5365 } 5366 unwantedNetwork(NETWORK_STATUS_UNWANTED_VALIDATION_FAILED); 5367 } else if (status == NetworkAgent.VALID_NETWORK) { 5368 if (mVerboseLoggingEnabled) { 5369 log("WifiNetworkAgent -> Wifi networkStatus valid, score= " 5370 + Integer.toString(mWifiInfo.score)); 5371 } 5372 doNetworkStatus(status); 5373 } 5374 } 5375 5376 @Override 5377 protected void saveAcceptUnvalidated(boolean accept) { 5378 if (this != mNetworkAgent) return; 5379 WifiStateMachine.this.sendMessage(CMD_ACCEPT_UNVALIDATED, accept ? 1 : 0); 5380 } 5381 5382 @Override 5383 protected void startPacketKeepalive(Message msg) { 5384 WifiStateMachine.this.sendMessage( 5385 CMD_START_IP_PACKET_OFFLOAD, msg.arg1, msg.arg2, msg.obj); 5386 } 5387 5388 @Override 5389 protected void stopPacketKeepalive(Message msg) { 5390 WifiStateMachine.this.sendMessage( 5391 CMD_STOP_IP_PACKET_OFFLOAD, msg.arg1, msg.arg2, msg.obj); 5392 } 5393 5394 @Override 5395 protected void setSignalStrengthThresholds(int[] thresholds) { 5396 // 0. If there are no thresholds, or if the thresholds are invalid, stop RSSI monitoring. 5397 // 1. Tell the hardware to start RSSI monitoring here, possibly adding MIN_VALUE and 5398 // MAX_VALUE at the start/end of the thresholds array if necessary. 5399 // 2. Ensure that when the hardware event fires, we fetch the RSSI from the hardware 5400 // event, call mWifiInfo.setRssi() with it, and call updateCapabilities(), and then 5401 // re-arm the hardware event. This needs to be done on the state machine thread to 5402 // avoid race conditions. The RSSI used to re-arm the event (and perhaps also the one 5403 // sent in the NetworkCapabilities) must be the one received from the hardware event 5404 // received, or we might skip callbacks. 5405 // 3. Ensure that when we disconnect, RSSI monitoring is stopped. 5406 log("Received signal strength thresholds: " + Arrays.toString(thresholds)); 5407 if (thresholds.length == 0) { 5408 WifiStateMachine.this.sendMessage(CMD_STOP_RSSI_MONITORING_OFFLOAD, 5409 mWifiInfo.getRssi()); 5410 return; 5411 } 5412 int [] rssiVals = Arrays.copyOf(thresholds, thresholds.length + 2); 5413 rssiVals[rssiVals.length - 2] = Byte.MIN_VALUE; 5414 rssiVals[rssiVals.length - 1] = Byte.MAX_VALUE; 5415 Arrays.sort(rssiVals); 5416 byte[] rssiRange = new byte[rssiVals.length]; 5417 for (int i = 0; i < rssiVals.length; i++) { 5418 int val = rssiVals[i]; 5419 if (val <= Byte.MAX_VALUE && val >= Byte.MIN_VALUE) { 5420 rssiRange[i] = (byte) val; 5421 } else { 5422 Log.e(TAG, "Illegal value " + val + " for RSSI thresholds: " 5423 + Arrays.toString(rssiVals)); 5424 WifiStateMachine.this.sendMessage(CMD_STOP_RSSI_MONITORING_OFFLOAD, 5425 mWifiInfo.getRssi()); 5426 return; 5427 } 5428 } 5429 // TODO: Do we quash rssi values in this sorted array which are very close? 5430 mRssiRanges = rssiRange; 5431 WifiStateMachine.this.sendMessage(CMD_START_RSSI_MONITORING_OFFLOAD, 5432 mWifiInfo.getRssi()); 5433 } 5434 5435 @Override 5436 protected void preventAutomaticReconnect() { 5437 if (this != mNetworkAgent) return; 5438 unwantedNetwork(NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN); 5439 } 5440 } 5441 5442 void unwantedNetwork(int reason) { 5443 sendMessage(CMD_UNWANTED_NETWORK, reason); 5444 } 5445 5446 void doNetworkStatus(int status) { 5447 sendMessage(CMD_NETWORK_STATUS, status); 5448 } 5449 5450 // rfc4186 & rfc4187: 5451 // create Permanent Identity base on IMSI, 5452 // identity = usernam@realm 5453 // with username = prefix | IMSI 5454 // and realm is derived MMC/MNC tuple according 3GGP spec(TS23.003) 5455 private String buildIdentity(int eapMethod, String imsi, String mccMnc) { 5456 String mcc; 5457 String mnc; 5458 String prefix; 5459 5460 if (imsi == null || imsi.isEmpty()) 5461 return ""; 5462 5463 if (eapMethod == WifiEnterpriseConfig.Eap.SIM) 5464 prefix = "1"; 5465 else if (eapMethod == WifiEnterpriseConfig.Eap.AKA) 5466 prefix = "0"; 5467 else if (eapMethod == WifiEnterpriseConfig.Eap.AKA_PRIME) 5468 prefix = "6"; 5469 else // not a valide EapMethod 5470 return ""; 5471 5472 /* extract mcc & mnc from mccMnc */ 5473 if (mccMnc != null && !mccMnc.isEmpty()) { 5474 mcc = mccMnc.substring(0, 3); 5475 mnc = mccMnc.substring(3); 5476 if (mnc.length() == 2) 5477 mnc = "0" + mnc; 5478 } else { 5479 // extract mcc & mnc from IMSI, assume mnc size is 3 5480 mcc = imsi.substring(0, 3); 5481 mnc = imsi.substring(3, 6); 5482 } 5483 5484 return prefix + imsi + "@wlan.mnc" + mnc + ".mcc" + mcc + ".3gppnetwork.org"; 5485 } 5486 5487 boolean startScanForConfiguration(WifiConfiguration config) { 5488 if (config == null) 5489 return false; 5490 5491 // We are still seeing a fairly high power consumption triggered by autojoin scans 5492 // Hence do partial scans only for PSK configuration that are roamable since the 5493 // primary purpose of the partial scans is roaming. 5494 // Full badn scans with exponential backoff for the purpose or extended roaming and 5495 // network switching are performed unconditionally. 5496 ScanDetailCache scanDetailCache = 5497 mWifiConfigManager.getScanDetailCacheForNetwork(config.networkId); 5498 if (scanDetailCache == null 5499 || !config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.WPA_PSK) 5500 || scanDetailCache.size() > 6) { 5501 //return true but to not trigger the scan 5502 return true; 5503 } 5504 Set<Integer> freqs = 5505 mWifiConfigManager.fetchChannelSetForNetworkForPartialScan( 5506 config.networkId, ONE_HOUR_MILLI, mWifiInfo.getFrequency()); 5507 if (freqs != null && freqs.size() != 0) { 5508 //if (mVerboseLoggingEnabled) { 5509 logd("starting scan for " + config.configKey() + " with " + freqs); 5510 //} 5511 List<WifiScanner.ScanSettings.HiddenNetwork> hiddenNetworks = new ArrayList<>(); 5512 if (config.hiddenSSID) { 5513 hiddenNetworks.add(new WifiScanner.ScanSettings.HiddenNetwork(config.SSID)); 5514 } 5515 // Call wifi native to start the scan 5516 if (startScanNative(freqs, hiddenNetworks, WIFI_WORK_SOURCE)) { 5517 messageHandlingStatus = MESSAGE_HANDLING_STATUS_OK; 5518 } else { 5519 // used for debug only, mark scan as failed 5520 messageHandlingStatus = MESSAGE_HANDLING_STATUS_HANDLING_ERROR; 5521 } 5522 return true; 5523 } else { 5524 if (mVerboseLoggingEnabled) logd("no channels for " + config.configKey()); 5525 return false; 5526 } 5527 } 5528 5529 class L2ConnectedState extends State { 5530 @Override 5531 public void enter() { 5532 mRssiPollToken++; 5533 if (mEnableRssiPolling) { 5534 sendMessage(CMD_RSSI_POLL, mRssiPollToken, 0); 5535 } 5536 if (mNetworkAgent != null) { 5537 loge("Have NetworkAgent when entering L2Connected"); 5538 setNetworkDetailedState(DetailedState.DISCONNECTED); 5539 } 5540 setNetworkDetailedState(DetailedState.CONNECTING); 5541 5542 mNetworkAgent = new WifiNetworkAgent(getHandler().getLooper(), mContext, 5543 "WifiNetworkAgent", mNetworkInfo, mNetworkCapabilitiesFilter, 5544 mLinkProperties, 60, mNetworkMisc); 5545 5546 // We must clear the config BSSID, as the wifi chipset may decide to roam 5547 // from this point on and having the BSSID specified in the network block would 5548 // cause the roam to faile and the device to disconnect 5549 clearTargetBssid("L2ConnectedState"); 5550 mCountryCode.setReadyForChange(false); 5551 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_ASSOCIATED); 5552 } 5553 5554 @Override 5555 public void exit() { 5556 mIpManager.stop(); 5557 5558 // This is handled by receiving a NETWORK_DISCONNECTION_EVENT in ConnectModeState 5559 // Bug: 15347363 5560 // For paranoia's sake, call handleNetworkDisconnect 5561 // only if BSSID is null or last networkId 5562 // is not invalid. 5563 if (mVerboseLoggingEnabled) { 5564 StringBuilder sb = new StringBuilder(); 5565 sb.append("leaving L2ConnectedState state nid=" + Integer.toString(mLastNetworkId)); 5566 if (mLastBssid !=null) { 5567 sb.append(" ").append(mLastBssid); 5568 } 5569 } 5570 if (mLastBssid != null || mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 5571 handleNetworkDisconnect(); 5572 } 5573 mCountryCode.setReadyForChange(true); 5574 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_DISCONNECTED); 5575 } 5576 5577 @Override 5578 public boolean processMessage(Message message) { 5579 logStateAndMessage(message, this); 5580 5581 switch (message.what) { 5582 case DhcpClient.CMD_PRE_DHCP_ACTION: 5583 handlePreDhcpSetup(); 5584 break; 5585 case DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE: 5586 mIpManager.completedPreDhcpAction(); 5587 break; 5588 case DhcpClient.CMD_POST_DHCP_ACTION: 5589 handlePostDhcpSetup(); 5590 // We advance to mConnectedState because IpManager will also send a 5591 // CMD_IPV4_PROVISIONING_SUCCESS message, which calls handleIPv4Success(), 5592 // which calls updateLinkProperties, which then sends 5593 // CMD_IP_CONFIGURATION_SUCCESSFUL. 5594 // 5595 // In the event of failure, we transition to mDisconnectingState 5596 // similarly--via messages sent back from IpManager. 5597 break; 5598 case CMD_IPV4_PROVISIONING_SUCCESS: { 5599 handleIPv4Success((DhcpResults) message.obj); 5600 sendNetworkStateChangeBroadcast(mLastBssid); 5601 break; 5602 } 5603 case CMD_IPV4_PROVISIONING_FAILURE: { 5604 handleIPv4Failure(); 5605 break; 5606 } 5607 case CMD_IP_CONFIGURATION_SUCCESSFUL: 5608 handleSuccessfulIpConfiguration(); 5609 reportConnectionAttemptEnd( 5610 WifiMetrics.ConnectionEvent.FAILURE_NONE, 5611 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5612 sendConnectedState(); 5613 transitionTo(mConnectedState); 5614 break; 5615 case CMD_IP_CONFIGURATION_LOST: 5616 // Get Link layer stats so that we get fresh tx packet counters. 5617 getWifiLinkLayerStats(); 5618 handleIpConfigurationLost(); 5619 reportConnectionAttemptEnd( 5620 WifiMetrics.ConnectionEvent.FAILURE_DHCP, 5621 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5622 transitionTo(mDisconnectingState); 5623 break; 5624 case CMD_IP_REACHABILITY_LOST: 5625 if (mVerboseLoggingEnabled && message.obj != null) log((String) message.obj); 5626 if (mIpReachabilityDisconnectEnabled) { 5627 handleIpReachabilityLost(); 5628 transitionTo(mDisconnectingState); 5629 } else { 5630 logd("CMD_IP_REACHABILITY_LOST but disconnect disabled -- ignore"); 5631 } 5632 break; 5633 case CMD_DISCONNECT: 5634 mWifiNative.disconnect(); 5635 transitionTo(mDisconnectingState); 5636 break; 5637 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 5638 if (message.arg1 == 1) { 5639 mWifiNative.disconnect(); 5640 mTemporarilyDisconnectWifi = true; 5641 transitionTo(mDisconnectingState); 5642 } 5643 break; 5644 case CMD_SET_OPERATIONAL_MODE: 5645 if (message.arg1 != CONNECT_MODE) { 5646 sendMessage(CMD_DISCONNECT); 5647 deferMessage(message); 5648 } 5649 break; 5650 /* Ignore connection to same network */ 5651 case WifiManager.CONNECT_NETWORK: 5652 int netId = message.arg1; 5653 if (mWifiInfo.getNetworkId() == netId) { 5654 break; 5655 } 5656 return NOT_HANDLED; 5657 case WifiMonitor.NETWORK_CONNECTION_EVENT: 5658 mWifiInfo.setBSSID((String) message.obj); 5659 mLastNetworkId = lookupFrameworkNetworkId(message.arg1); 5660 mWifiInfo.setNetworkId(mLastNetworkId); 5661 if(!mLastBssid.equals(message.obj)) { 5662 mLastBssid = (String) message.obj; 5663 sendNetworkStateChangeBroadcast(mLastBssid); 5664 } 5665 break; 5666 case CMD_RSSI_POLL: 5667 if (message.arg1 == mRssiPollToken) { 5668 if (mEnableChipWakeUpWhenAssociated) { 5669 if (mVerboseLoggingEnabled) { 5670 log(" get link layer stats " + mWifiLinkLayerStatsSupported); 5671 } 5672 WifiLinkLayerStats stats = getWifiLinkLayerStats(); 5673 if (stats != null) { 5674 // Sanity check the results provided by driver 5675 if (mWifiInfo.getRssi() != WifiInfo.INVALID_RSSI 5676 && (stats.rssi_mgmt == 0 5677 || stats.beacon_rx == 0)) { 5678 stats = null; 5679 } 5680 } 5681 // Get Info and continue polling 5682 fetchRssiLinkSpeedAndFrequencyNative(); 5683 // Send the update score to network agent. 5684 mWifiScoreReport.calculateAndReportScore( 5685 mWifiInfo, mNetworkAgent, mAggressiveHandover, 5686 mWifiMetrics); 5687 } 5688 sendMessageDelayed(obtainMessage(CMD_RSSI_POLL, 5689 mRssiPollToken, 0), POLL_RSSI_INTERVAL_MSECS); 5690 if (mVerboseLoggingEnabled) sendRssiChangeBroadcast(mWifiInfo.getRssi()); 5691 } else { 5692 // Polling has completed 5693 } 5694 break; 5695 case CMD_ENABLE_RSSI_POLL: 5696 cleanWifiScore(); 5697 if (mEnableRssiPollWhenAssociated) { 5698 mEnableRssiPolling = (message.arg1 == 1); 5699 } else { 5700 mEnableRssiPolling = false; 5701 } 5702 mRssiPollToken++; 5703 if (mEnableRssiPolling) { 5704 // First poll 5705 fetchRssiLinkSpeedAndFrequencyNative(); 5706 sendMessageDelayed(obtainMessage(CMD_RSSI_POLL, 5707 mRssiPollToken, 0), POLL_RSSI_INTERVAL_MSECS); 5708 } 5709 break; 5710 case WifiManager.RSSI_PKTCNT_FETCH: 5711 RssiPacketCountInfo info = new RssiPacketCountInfo(); 5712 fetchRssiLinkSpeedAndFrequencyNative(); 5713 info.rssi = mWifiInfo.getRssi(); 5714 fetchPktcntNative(info); 5715 replyToMessage(message, WifiManager.RSSI_PKTCNT_FETCH_SUCCEEDED, info); 5716 break; 5717 case CMD_DELAYED_NETWORK_DISCONNECT: 5718 if (!isLinkDebouncing()) { 5719 5720 // Ignore if we are not debouncing 5721 logd("CMD_DELAYED_NETWORK_DISCONNECT and not debouncing - ignore " 5722 + message.arg1); 5723 return HANDLED; 5724 } else { 5725 logd("CMD_DELAYED_NETWORK_DISCONNECT and debouncing - disconnect " 5726 + message.arg1); 5727 5728 mIsLinkDebouncing = false; 5729 // If we are still debouncing while this message comes, 5730 // it means we were not able to reconnect within the alloted time 5731 // = LINK_FLAPPING_DEBOUNCE_MSEC 5732 // and thus, trigger a real disconnect 5733 handleNetworkDisconnect(); 5734 transitionTo(mDisconnectedState); 5735 } 5736 break; 5737 case CMD_ASSOCIATED_BSSID: 5738 if ((String) message.obj == null) { 5739 logw("Associated command w/o BSSID"); 5740 break; 5741 } 5742 mLastBssid = (String) message.obj; 5743 if (mLastBssid != null && (mWifiInfo.getBSSID() == null 5744 || !mLastBssid.equals(mWifiInfo.getBSSID()))) { 5745 mWifiInfo.setBSSID((String) message.obj); 5746 sendNetworkStateChangeBroadcast(mLastBssid); 5747 } 5748 break; 5749 case CMD_START_RSSI_MONITORING_OFFLOAD: 5750 case CMD_RSSI_THRESHOLD_BREACH: 5751 byte currRssi = (byte) message.arg1; 5752 processRssiThreshold(currRssi, message.what); 5753 break; 5754 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 5755 stopRssiMonitoringOffload(); 5756 break; 5757 case CMD_RESET_SIM_NETWORKS: 5758 if (message.arg1 == 0 // sim was removed 5759 && mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 5760 WifiConfiguration config = 5761 mWifiConfigManager.getConfiguredNetwork(mLastNetworkId); 5762 if (TelephonyUtil.isSimConfig(config)) { 5763 mWifiNative.disconnect(); 5764 transitionTo(mDisconnectingState); 5765 } 5766 } 5767 /* allow parent state to reset data for other networks */ 5768 return NOT_HANDLED; 5769 default: 5770 return NOT_HANDLED; 5771 } 5772 5773 return HANDLED; 5774 } 5775 } 5776 5777 class ObtainingIpState extends State { 5778 @Override 5779 public void enter() { 5780 WifiConfiguration currentConfig = getCurrentWifiConfiguration(); 5781 boolean isUsingStaticIp = 5782 (currentConfig.getIpAssignment() == IpConfiguration.IpAssignment.STATIC); 5783 if (mVerboseLoggingEnabled) { 5784 String key = ""; 5785 if (getCurrentWifiConfiguration() != null) { 5786 key = getCurrentWifiConfiguration().configKey(); 5787 } 5788 log("enter ObtainingIpState netId=" + Integer.toString(mLastNetworkId) 5789 + " " + key + " " 5790 + " roam=" + mAutoRoaming 5791 + " static=" + isUsingStaticIp); 5792 } 5793 5794 // Reset link Debouncing, indicating we have successfully re-connected to the AP 5795 // We might still be roaming 5796 mIsLinkDebouncing = false; 5797 5798 // Send event to CM & network change broadcast 5799 setNetworkDetailedState(DetailedState.OBTAINING_IPADDR); 5800 5801 // We must clear the config BSSID, as the wifi chipset may decide to roam 5802 // from this point on and having the BSSID specified in the network block would 5803 // cause the roam to fail and the device to disconnect. 5804 clearTargetBssid("ObtainingIpAddress"); 5805 5806 // Stop IpManager in case we're switching from DHCP to static 5807 // configuration or vice versa. 5808 // 5809 // TODO: Only ever enter this state the first time we connect to a 5810 // network, never on switching between static configuration and 5811 // DHCP. When we transition from static configuration to DHCP in 5812 // particular, we must tell ConnectivityService that we're 5813 // disconnected, because DHCP might take a long time during which 5814 // connectivity APIs such as getActiveNetworkInfo should not return 5815 // CONNECTED. 5816 stopIpManager(); 5817 5818 mIpManager.setHttpProxy(currentConfig.getHttpProxy()); 5819 if (!TextUtils.isEmpty(mTcpBufferSizes)) { 5820 mIpManager.setTcpBufferSizes(mTcpBufferSizes); 5821 } 5822 5823 if (!isUsingStaticIp) { 5824 final IpManager.ProvisioningConfiguration prov = 5825 IpManager.buildProvisioningConfiguration() 5826 .withPreDhcpAction() 5827 .withApfCapabilities(mWifiNative.getApfCapabilities()) 5828 .build(); 5829 mIpManager.startProvisioning(prov); 5830 // Get Link layer stats so as we get fresh tx packet counters 5831 getWifiLinkLayerStats(); 5832 } else { 5833 StaticIpConfiguration config = currentConfig.getStaticIpConfiguration(); 5834 if (config.ipAddress == null) { 5835 logd("Static IP lacks address"); 5836 sendMessage(CMD_IPV4_PROVISIONING_FAILURE); 5837 } else { 5838 final IpManager.ProvisioningConfiguration prov = 5839 IpManager.buildProvisioningConfiguration() 5840 .withStaticConfiguration(config) 5841 .withApfCapabilities(mWifiNative.getApfCapabilities()) 5842 .build(); 5843 mIpManager.startProvisioning(prov); 5844 } 5845 } 5846 } 5847 5848 @Override 5849 public boolean processMessage(Message message) { 5850 logStateAndMessage(message, this); 5851 5852 switch(message.what) { 5853 case CMD_START_CONNECT: 5854 case CMD_START_ROAM: 5855 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 5856 break; 5857 case WifiManager.SAVE_NETWORK: 5858 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5859 deferMessage(message); 5860 break; 5861 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 5862 reportConnectionAttemptEnd( 5863 WifiMetrics.ConnectionEvent.FAILURE_NETWORK_DISCONNECTION, 5864 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5865 return NOT_HANDLED; 5866 case CMD_SET_HIGH_PERF_MODE: 5867 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5868 deferMessage(message); 5869 break; 5870 /* Defer scan request since we should not switch to other channels at DHCP */ 5871 case CMD_START_SCAN: 5872 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5873 deferMessage(message); 5874 break; 5875 default: 5876 return NOT_HANDLED; 5877 } 5878 return HANDLED; 5879 } 5880 } 5881 5882 private void sendConnectedState() { 5883 // If this network was explicitly selected by the user, evaluate whether to call 5884 // explicitlySelected() so the system can treat it appropriately. 5885 WifiConfiguration config = getCurrentWifiConfiguration(); 5886 if (mWifiConfigManager.getLastSelectedNetwork() == config.networkId) { 5887 boolean prompt = 5888 mWifiConfigManager.checkConfigOverridePermission(config.lastConnectUid); 5889 if (mVerboseLoggingEnabled) { 5890 log("Network selected by UID " + config.lastConnectUid + " prompt=" + prompt); 5891 } 5892 if (prompt) { 5893 // Selected by the user via Settings or QuickSettings. If this network has Internet 5894 // access, switch to it. Otherwise, switch to it only if the user confirms that they 5895 // really want to switch, or has already confirmed and selected "Don't ask again". 5896 if (mVerboseLoggingEnabled) { 5897 log("explictlySelected acceptUnvalidated=" + config.noInternetAccessExpected); 5898 } 5899 mNetworkAgent.explicitlySelected(config.noInternetAccessExpected); 5900 } 5901 } 5902 5903 setNetworkDetailedState(DetailedState.CONNECTED); 5904 mWifiConfigManager.updateNetworkAfterConnect(mLastNetworkId); 5905 sendNetworkStateChangeBroadcast(mLastBssid); 5906 } 5907 5908 class RoamingState extends State { 5909 boolean mAssociated; 5910 @Override 5911 public void enter() { 5912 if (mVerboseLoggingEnabled) { 5913 log("RoamingState Enter" 5914 + " mScreenOn=" + mScreenOn ); 5915 } 5916 5917 // Make sure we disconnect if roaming fails 5918 roamWatchdogCount++; 5919 logd("Start Roam Watchdog " + roamWatchdogCount); 5920 sendMessageDelayed(obtainMessage(CMD_ROAM_WATCHDOG_TIMER, 5921 roamWatchdogCount, 0), ROAM_GUARD_TIMER_MSEC); 5922 mAssociated = false; 5923 } 5924 @Override 5925 public boolean processMessage(Message message) { 5926 logStateAndMessage(message, this); 5927 WifiConfiguration config; 5928 switch (message.what) { 5929 case CMD_IP_CONFIGURATION_LOST: 5930 config = getCurrentWifiConfiguration(); 5931 if (config != null) { 5932 mWifiDiagnostics.captureBugReportData( 5933 WifiDiagnostics.REPORT_REASON_AUTOROAM_FAILURE); 5934 } 5935 return NOT_HANDLED; 5936 case CMD_UNWANTED_NETWORK: 5937 if (mVerboseLoggingEnabled) { 5938 log("Roaming and CS doesnt want the network -> ignore"); 5939 } 5940 return HANDLED; 5941 case CMD_SET_OPERATIONAL_MODE: 5942 if (message.arg1 != CONNECT_MODE) { 5943 deferMessage(message); 5944 } 5945 break; 5946 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 5947 /** 5948 * If we get a SUPPLICANT_STATE_CHANGE_EVENT indicating a DISCONNECT 5949 * before NETWORK_DISCONNECTION_EVENT 5950 * And there is an associated BSSID corresponding to our target BSSID, then 5951 * we have missed the network disconnection, transition to mDisconnectedState 5952 * and handle the rest of the events there. 5953 */ 5954 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 5955 if (stateChangeResult.state == SupplicantState.DISCONNECTED 5956 || stateChangeResult.state == SupplicantState.INACTIVE 5957 || stateChangeResult.state == SupplicantState.INTERFACE_DISABLED) { 5958 if (mVerboseLoggingEnabled) { 5959 log("STATE_CHANGE_EVENT in roaming state " 5960 + stateChangeResult.toString() ); 5961 } 5962 if (stateChangeResult.BSSID != null 5963 && stateChangeResult.BSSID.equals(mTargetRoamBSSID)) { 5964 handleNetworkDisconnect(); 5965 transitionTo(mDisconnectedState); 5966 } 5967 } 5968 if (stateChangeResult.state == SupplicantState.ASSOCIATED) { 5969 // We completed the layer2 roaming part 5970 mAssociated = true; 5971 if (stateChangeResult.BSSID != null) { 5972 mTargetRoamBSSID = stateChangeResult.BSSID; 5973 } 5974 } 5975 break; 5976 case CMD_ROAM_WATCHDOG_TIMER: 5977 if (roamWatchdogCount == message.arg1) { 5978 if (mVerboseLoggingEnabled) log("roaming watchdog! -> disconnect"); 5979 mWifiMetrics.endConnectionEvent( 5980 WifiMetrics.ConnectionEvent.FAILURE_ROAM_TIMEOUT, 5981 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5982 mRoamFailCount++; 5983 handleNetworkDisconnect(); 5984 mWifiNative.disconnect(); 5985 transitionTo(mDisconnectedState); 5986 } 5987 break; 5988 case WifiMonitor.NETWORK_CONNECTION_EVENT: 5989 if (mAssociated) { 5990 if (mVerboseLoggingEnabled) { 5991 log("roaming and Network connection established"); 5992 } 5993 mLastNetworkId = lookupFrameworkNetworkId(message.arg1); 5994 mLastBssid = (String) message.obj; 5995 mWifiInfo.setBSSID(mLastBssid); 5996 mWifiInfo.setNetworkId(mLastNetworkId); 5997 int reasonCode = message.arg2; 5998 mWifiConnectivityManager.trackBssid(mLastBssid, true, reasonCode); 5999 sendNetworkStateChangeBroadcast(mLastBssid); 6000 6001 // Successful framework roam! (probably) 6002 reportConnectionAttemptEnd( 6003 WifiMetrics.ConnectionEvent.FAILURE_NONE, 6004 WifiMetricsProto.ConnectionEvent.HLF_NONE); 6005 6006 // We must clear the config BSSID, as the wifi chipset may decide to roam 6007 // from this point on and having the BSSID specified by QNS would cause 6008 // the roam to fail and the device to disconnect. 6009 // When transition from RoamingState to DisconnectingState or 6010 // DisconnectedState, the config BSSID is cleared by 6011 // handleNetworkDisconnect(). 6012 clearTargetBssid("RoamingCompleted"); 6013 6014 // We used to transition to ObtainingIpState in an 6015 // attempt to do DHCPv4 RENEWs on framework roams. 6016 // DHCP can take too long to time out, and we now rely 6017 // upon IpManager's use of IpReachabilityMonitor to 6018 // confirm our current network configuration. 6019 // 6020 // mIpManager.confirmConfiguration() is called within 6021 // the handling of SupplicantState.COMPLETED. 6022 transitionTo(mConnectedState); 6023 } else { 6024 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 6025 } 6026 break; 6027 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6028 // Throw away but only if it corresponds to the network we're roaming to 6029 String bssid = (String) message.obj; 6030 if (true) { 6031 String target = ""; 6032 if (mTargetRoamBSSID != null) target = mTargetRoamBSSID; 6033 log("NETWORK_DISCONNECTION_EVENT in roaming state" 6034 + " BSSID=" + bssid 6035 + " target=" + target); 6036 } 6037 if (bssid != null && bssid.equals(mTargetRoamBSSID)) { 6038 handleNetworkDisconnect(); 6039 transitionTo(mDisconnectedState); 6040 } 6041 break; 6042 case WifiMonitor.SSID_TEMP_DISABLED: 6043 // Auth error while roaming 6044 int netId = lookupFrameworkNetworkId(message.arg1); 6045 logd("SSID_TEMP_DISABLED nid=" + Integer.toString(mLastNetworkId) 6046 + " id=" + netId 6047 + " isRoaming=" + isRoaming() 6048 + " roam=" + mAutoRoaming); 6049 if (netId == mLastNetworkId) { 6050 config = getCurrentWifiConfiguration(); 6051 if (config != null) { 6052 mWifiDiagnostics.captureBugReportData( 6053 WifiDiagnostics.REPORT_REASON_AUTOROAM_FAILURE); 6054 } 6055 handleNetworkDisconnect(); 6056 transitionTo(mDisconnectingState); 6057 } 6058 return NOT_HANDLED; 6059 case CMD_START_SCAN: 6060 deferMessage(message); 6061 break; 6062 default: 6063 return NOT_HANDLED; 6064 } 6065 return HANDLED; 6066 } 6067 6068 @Override 6069 public void exit() { 6070 logd("WifiStateMachine: Leaving Roaming state"); 6071 } 6072 } 6073 6074 class ConnectedState extends State { 6075 @Override 6076 public void enter() { 6077 updateDefaultRouteMacAddress(1000); 6078 if (mVerboseLoggingEnabled) { 6079 log("Enter ConnectedState " 6080 + " mScreenOn=" + mScreenOn); 6081 } 6082 6083 mWifiConnectivityManager.handleConnectionStateChanged( 6084 WifiConnectivityManager.WIFI_STATE_CONNECTED); 6085 registerConnected(); 6086 lastConnectAttemptTimestamp = 0; 6087 targetWificonfiguration = null; 6088 // Paranoia 6089 mIsLinkDebouncing = false; 6090 6091 // Not roaming anymore 6092 mAutoRoaming = false; 6093 6094 if (testNetworkDisconnect) { 6095 testNetworkDisconnectCounter++; 6096 logd("ConnectedState Enter start disconnect test " + 6097 testNetworkDisconnectCounter); 6098 sendMessageDelayed(obtainMessage(CMD_TEST_NETWORK_DISCONNECT, 6099 testNetworkDisconnectCounter, 0), 15000); 6100 } 6101 6102 mLastDriverRoamAttempt = 0; 6103 mTargetNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 6104 mWifiInjector.getWifiLastResortWatchdog().connectedStateTransition(true); 6105 } 6106 @Override 6107 public boolean processMessage(Message message) { 6108 WifiConfiguration config = null; 6109 logStateAndMessage(message, this); 6110 6111 switch (message.what) { 6112 case CMD_UNWANTED_NETWORK: 6113 if (message.arg1 == NETWORK_STATUS_UNWANTED_DISCONNECT) { 6114 mWifiNative.disconnect(); 6115 transitionTo(mDisconnectingState); 6116 } else if (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN || 6117 message.arg1 == NETWORK_STATUS_UNWANTED_VALIDATION_FAILED) { 6118 Log.d(TAG, (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN 6119 ? "NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN" 6120 : "NETWORK_STATUS_UNWANTED_VALIDATION_FAILED")); 6121 config = getCurrentWifiConfiguration(); 6122 if (config != null) { 6123 // Disable autojoin 6124 if (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN) { 6125 mWifiConfigManager.setNetworkValidatedInternetAccess( 6126 config.networkId, false); 6127 mWifiConfigManager.updateNetworkSelectionStatus(config.networkId, 6128 WifiConfiguration.NetworkSelectionStatus 6129 .DISABLED_NO_INTERNET); 6130 } 6131 mWifiConfigManager.incrementNetworkNoInternetAccessReports( 6132 config.networkId); 6133 } 6134 } 6135 return HANDLED; 6136 case CMD_NETWORK_STATUS: 6137 if (message.arg1 == NetworkAgent.VALID_NETWORK) { 6138 config = getCurrentWifiConfiguration(); 6139 if (config != null) { 6140 // re-enable autojoin 6141 mWifiConfigManager.setNetworkValidatedInternetAccess( 6142 config.networkId, true); 6143 } 6144 } 6145 return HANDLED; 6146 case CMD_ACCEPT_UNVALIDATED: 6147 boolean accept = (message.arg1 != 0); 6148 mWifiConfigManager.setNetworkNoInternetAccessExpected(mLastNetworkId, accept); 6149 return HANDLED; 6150 case CMD_TEST_NETWORK_DISCONNECT: 6151 // Force a disconnect 6152 if (message.arg1 == testNetworkDisconnectCounter) { 6153 mWifiNative.disconnect(); 6154 } 6155 break; 6156 case CMD_ASSOCIATED_BSSID: 6157 // ASSOCIATING to a new BSSID while already connected, indicates 6158 // that driver is roaming 6159 mLastDriverRoamAttempt = mClock.getWallClockMillis(); 6160 return NOT_HANDLED; 6161 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6162 long lastRoam = 0; 6163 reportConnectionAttemptEnd( 6164 WifiMetrics.ConnectionEvent.FAILURE_NETWORK_DISCONNECTION, 6165 WifiMetricsProto.ConnectionEvent.HLF_NONE); 6166 if (mLastDriverRoamAttempt != 0) { 6167 // Calculate time since last driver roam attempt 6168 lastRoam = mClock.getWallClockMillis() - mLastDriverRoamAttempt; 6169 mLastDriverRoamAttempt = 0; 6170 } 6171 if (unexpectedDisconnectedReason(message.arg2)) { 6172 mWifiDiagnostics.captureBugReportData( 6173 WifiDiagnostics.REPORT_REASON_UNEXPECTED_DISCONNECT); 6174 } 6175 config = getCurrentWifiConfiguration(); 6176 if (mEnableLinkDebouncing 6177 && mScreenOn 6178 && !isLinkDebouncing() 6179 && config != null 6180 && config.getNetworkSelectionStatus().isNetworkEnabled() 6181 && config.networkId != mWifiConfigManager.getLastSelectedNetwork() 6182 && (message.arg2 != 3 /* reason cannot be 3, i.e. locally generated */ 6183 || (lastRoam > 0 && lastRoam < 2000) /* unless driver is roaming */) 6184 && ((ScanResult.is24GHz(mWifiInfo.getFrequency()) 6185 && mWifiInfo.getRssi() > 6186 mThresholdQualifiedRssi5) 6187 || (ScanResult.is5GHz(mWifiInfo.getFrequency()) 6188 && mWifiInfo.getRssi() > 6189 mThresholdQualifiedRssi5))) { 6190 // Start de-bouncing the L2 disconnection: 6191 // this L2 disconnection might be spurious. 6192 // Hence we allow 4 seconds for the state machine to try 6193 // to reconnect, go thru the 6194 // roaming cycle and enter Obtaining IP address 6195 // before signalling the disconnect to ConnectivityService and L3 6196 startScanForConfiguration(getCurrentWifiConfiguration()); 6197 mIsLinkDebouncing = true; 6198 6199 sendMessageDelayed(obtainMessage(CMD_DELAYED_NETWORK_DISCONNECT, 6200 0, mLastNetworkId), LINK_FLAPPING_DEBOUNCE_MSEC); 6201 if (mVerboseLoggingEnabled) { 6202 log("NETWORK_DISCONNECTION_EVENT in connected state" 6203 + " BSSID=" + mWifiInfo.getBSSID() 6204 + " RSSI=" + mWifiInfo.getRssi() 6205 + " freq=" + mWifiInfo.getFrequency() 6206 + " reason=" + message.arg2 6207 + " -> debounce"); 6208 } 6209 return HANDLED; 6210 } else { 6211 if (mVerboseLoggingEnabled) { 6212 log("NETWORK_DISCONNECTION_EVENT in connected state" 6213 + " BSSID=" + mWifiInfo.getBSSID() 6214 + " RSSI=" + mWifiInfo.getRssi() 6215 + " freq=" + mWifiInfo.getFrequency() 6216 + " was debouncing=" + isLinkDebouncing() 6217 + " reason=" + message.arg2 6218 + " Network Selection Status=" + (config == null ? "Unavailable" 6219 : config.getNetworkSelectionStatus().getNetworkStatusString())); 6220 } 6221 } 6222 break; 6223 case CMD_START_ROAM: 6224 // Clear the driver roam indication since we are attempting a framework roam 6225 mLastDriverRoamAttempt = 0; 6226 6227 /* Connect command coming from auto-join */ 6228 int netId = message.arg1; 6229 ScanResult candidate = (ScanResult)message.obj; 6230 String bssid = SUPPLICANT_BSSID_ANY; 6231 if (candidate != null) { 6232 bssid = candidate.BSSID; 6233 } 6234 config = mWifiConfigManager.getConfiguredNetworkWithPassword(netId); 6235 if (config == null) { 6236 loge("CMD_START_ROAM and no config, bail out..."); 6237 break; 6238 } 6239 6240 setTargetBssid(config, bssid); 6241 mTargetNetworkId = netId; 6242 6243 logd("CMD_START_ROAM sup state " 6244 + mSupplicantStateTracker.getSupplicantStateName() 6245 + " my state " + getCurrentState().getName() 6246 + " nid=" + Integer.toString(netId) 6247 + " config " + config.configKey() 6248 + " targetRoamBSSID " + mTargetRoamBSSID); 6249 6250 mWifiMetrics.startConnectionEvent(config, mTargetRoamBSSID, 6251 WifiMetricsProto.ConnectionEvent.ROAM_ENTERPRISE); 6252 if (mWifiSupplicantControl.roamToNetwork(config)) { 6253 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 6254 targetWificonfiguration = config; 6255 mAutoRoaming = true; 6256 transitionTo(mRoamingState); 6257 } else { 6258 loge("CMD_START_ROAM Failed to start roaming to network " + config); 6259 reportConnectionAttemptEnd( 6260 WifiMetrics.ConnectionEvent.FAILURE_CONNECT_NETWORK_FAILED, 6261 WifiMetricsProto.ConnectionEvent.HLF_NONE); 6262 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 6263 WifiManager.ERROR); 6264 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 6265 break; 6266 } 6267 break; 6268 case CMD_START_IP_PACKET_OFFLOAD: { 6269 int slot = message.arg1; 6270 int intervalSeconds = message.arg2; 6271 KeepalivePacketData pkt = (KeepalivePacketData) message.obj; 6272 byte[] dstMac; 6273 try { 6274 InetAddress gateway = RouteInfo.selectBestRoute( 6275 mLinkProperties.getRoutes(), pkt.dstAddress).getGateway(); 6276 String dstMacStr = macAddressFromRoute(gateway.getHostAddress()); 6277 dstMac = macAddressFromString(dstMacStr); 6278 } catch (NullPointerException|IllegalArgumentException e) { 6279 loge("Can't find MAC address for next hop to " + pkt.dstAddress); 6280 mNetworkAgent.onPacketKeepaliveEvent(slot, 6281 ConnectivityManager.PacketKeepalive.ERROR_INVALID_IP_ADDRESS); 6282 break; 6283 } 6284 pkt.dstMac = dstMac; 6285 int result = startWifiIPPacketOffload(slot, pkt, intervalSeconds); 6286 mNetworkAgent.onPacketKeepaliveEvent(slot, result); 6287 break; 6288 } 6289 default: 6290 return NOT_HANDLED; 6291 } 6292 return HANDLED; 6293 } 6294 6295 @Override 6296 public void exit() { 6297 logd("WifiStateMachine: Leaving Connected state"); 6298 mWifiConnectivityManager.handleConnectionStateChanged( 6299 WifiConnectivityManager.WIFI_STATE_TRANSITIONING); 6300 6301 mLastDriverRoamAttempt = 0; 6302 mWifiInjector.getWifiLastResortWatchdog().connectedStateTransition(false); 6303 } 6304 } 6305 6306 class DisconnectingState extends State { 6307 6308 @Override 6309 public void enter() { 6310 6311 if (mVerboseLoggingEnabled) { 6312 logd(" Enter DisconnectingState State screenOn=" + mScreenOn); 6313 } 6314 6315 // Make sure we disconnect: we enter this state prior to connecting to a new 6316 // network, waiting for either a DISCONNECT event or a SUPPLICANT_STATE_CHANGE 6317 // event which in this case will be indicating that supplicant started to associate. 6318 // In some cases supplicant doesn't ignore the connect requests (it might not 6319 // find the target SSID in its cache), 6320 // Therefore we end up stuck that state, hence the need for the watchdog. 6321 disconnectingWatchdogCount++; 6322 logd("Start Disconnecting Watchdog " + disconnectingWatchdogCount); 6323 sendMessageDelayed(obtainMessage(CMD_DISCONNECTING_WATCHDOG_TIMER, 6324 disconnectingWatchdogCount, 0), DISCONNECTING_GUARD_TIMER_MSEC); 6325 } 6326 6327 @Override 6328 public boolean processMessage(Message message) { 6329 logStateAndMessage(message, this); 6330 switch (message.what) { 6331 case CMD_SET_OPERATIONAL_MODE: 6332 if (message.arg1 != CONNECT_MODE) { 6333 deferMessage(message); 6334 } 6335 break; 6336 case CMD_START_SCAN: 6337 deferMessage(message); 6338 return HANDLED; 6339 case CMD_DISCONNECT: 6340 if (mVerboseLoggingEnabled) log("Ignore CMD_DISCONNECT when already disconnecting."); 6341 break; 6342 case CMD_DISCONNECTING_WATCHDOG_TIMER: 6343 if (disconnectingWatchdogCount == message.arg1) { 6344 if (mVerboseLoggingEnabled) log("disconnecting watchdog! -> disconnect"); 6345 handleNetworkDisconnect(); 6346 transitionTo(mDisconnectedState); 6347 } 6348 break; 6349 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6350 /** 6351 * If we get a SUPPLICANT_STATE_CHANGE_EVENT before NETWORK_DISCONNECTION_EVENT 6352 * we have missed the network disconnection, transition to mDisconnectedState 6353 * and handle the rest of the events there 6354 */ 6355 deferMessage(message); 6356 handleNetworkDisconnect(); 6357 transitionTo(mDisconnectedState); 6358 break; 6359 default: 6360 return NOT_HANDLED; 6361 } 6362 return HANDLED; 6363 } 6364 } 6365 6366 class DisconnectedState extends State { 6367 @Override 6368 public void enter() { 6369 // We dont scan frequently if this is a temporary disconnect 6370 // due to p2p 6371 if (mTemporarilyDisconnectWifi) { 6372 p2pSendMessage(WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE); 6373 return; 6374 } 6375 6376 if (mVerboseLoggingEnabled) { 6377 logd(" Enter DisconnectedState screenOn=" + mScreenOn); 6378 } 6379 6380 /** clear the roaming state, if we were roaming, we failed */ 6381 mAutoRoaming = false; 6382 6383 mWifiConnectivityManager.handleConnectionStateChanged( 6384 WifiConnectivityManager.WIFI_STATE_DISCONNECTED); 6385 6386 /** 6387 * If we have no networks saved, the supplicant stops doing the periodic scan. 6388 * The scans are useful to notify the user of the presence of an open network. 6389 * Note that these are not wake up scans. 6390 */ 6391 if (mNoNetworksPeriodicScan != 0 && !mP2pConnected.get() 6392 && mWifiConfigManager.getSavedNetworks().size() == 0) { 6393 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6394 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6395 } 6396 6397 mDisconnectedTimeStamp = mClock.getWallClockMillis(); 6398 } 6399 @Override 6400 public boolean processMessage(Message message) { 6401 boolean ret = HANDLED; 6402 6403 logStateAndMessage(message, this); 6404 6405 switch (message.what) { 6406 case CMD_NO_NETWORKS_PERIODIC_SCAN: 6407 if (mP2pConnected.get()) break; 6408 if (mNoNetworksPeriodicScan != 0 && message.arg1 == mPeriodicScanToken && 6409 mWifiConfigManager.getSavedNetworks().size() == 0) { 6410 startScan(UNKNOWN_SCAN_SOURCE, -1, null, WIFI_WORK_SOURCE); 6411 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6412 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6413 } 6414 break; 6415 case WifiManager.FORGET_NETWORK: 6416 case CMD_REMOVE_NETWORK: 6417 case CMD_REMOVE_APP_CONFIGURATIONS: 6418 case CMD_REMOVE_USER_CONFIGURATIONS: 6419 // Set up a delayed message here. After the forget/remove is handled 6420 // the handled delayed message will determine if there is a need to 6421 // scan and continue 6422 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6423 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6424 ret = NOT_HANDLED; 6425 break; 6426 case CMD_SET_OPERATIONAL_MODE: 6427 if (message.arg1 != CONNECT_MODE) { 6428 mOperationalMode = message.arg1; 6429 if (mOperationalMode == DISABLED_MODE) { 6430 transitionTo(mSupplicantStoppingState); 6431 } else if (mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 6432 p2pSendMessage(CMD_DISABLE_P2P_REQ); 6433 setWifiState(WIFI_STATE_DISABLED); 6434 transitionTo(mScanModeState); 6435 } else if (mOperationalMode == SCAN_ONLY_MODE) { 6436 transitionTo(mScanModeState); 6437 } 6438 } 6439 break; 6440 case CMD_DISCONNECT: 6441 mWifiNative.disconnect(); 6442 break; 6443 /* Ignore network disconnect */ 6444 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6445 // Interpret this as an L2 connection failure 6446 break; 6447 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6448 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 6449 if (mVerboseLoggingEnabled) { 6450 logd("SUPPLICANT_STATE_CHANGE_EVENT state=" + stateChangeResult.state + 6451 " -> state= " + WifiInfo.getDetailedStateOf(stateChangeResult.state) 6452 + " debouncing=" + isLinkDebouncing()); 6453 } 6454 setNetworkDetailedState(WifiInfo.getDetailedStateOf(stateChangeResult.state)); 6455 /* ConnectModeState does the rest of the handling */ 6456 ret = NOT_HANDLED; 6457 break; 6458 case CMD_START_SCAN: 6459 if (!checkOrDeferScanAllowed(message)) { 6460 // The scan request was rescheduled 6461 messageHandlingStatus = MESSAGE_HANDLING_STATUS_REFUSED; 6462 return HANDLED; 6463 } 6464 6465 ret = NOT_HANDLED; 6466 break; 6467 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 6468 NetworkInfo info = (NetworkInfo) message.obj; 6469 mP2pConnected.set(info.isConnected()); 6470 if (mP2pConnected.get()) { 6471 int defaultInterval = mContext.getResources().getInteger( 6472 R.integer.config_wifi_scan_interval_p2p_connected); 6473 long scanIntervalMs = mFacade.getLongSetting(mContext, 6474 Settings.Global.WIFI_SCAN_INTERVAL_WHEN_P2P_CONNECTED_MS, 6475 defaultInterval); 6476 mWifiNative.setScanInterval((int) scanIntervalMs/1000); 6477 } else if (mWifiConfigManager.getSavedNetworks().size() == 0) { 6478 if (mVerboseLoggingEnabled) log("Turn on scanning after p2p disconnected"); 6479 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6480 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6481 } 6482 break; 6483 case CMD_RECONNECT: 6484 case CMD_REASSOCIATE: 6485 if (mTemporarilyDisconnectWifi) { 6486 // Drop a third party reconnect/reassociate if STA is 6487 // temporarily disconnected for p2p 6488 break; 6489 } else { 6490 // ConnectModeState handles it 6491 ret = NOT_HANDLED; 6492 } 6493 break; 6494 case CMD_SCREEN_STATE_CHANGED: 6495 handleScreenStateChanged(message.arg1 != 0); 6496 break; 6497 default: 6498 ret = NOT_HANDLED; 6499 } 6500 return ret; 6501 } 6502 6503 @Override 6504 public void exit() { 6505 mWifiConnectivityManager.handleConnectionStateChanged( 6506 WifiConnectivityManager.WIFI_STATE_TRANSITIONING); 6507 } 6508 } 6509 6510 class WpsRunningState extends State { 6511 // Tracks the source to provide a reply 6512 private Message mSourceMessage; 6513 @Override 6514 public void enter() { 6515 mSourceMessage = Message.obtain(getCurrentMessage()); 6516 } 6517 @Override 6518 public boolean processMessage(Message message) { 6519 logStateAndMessage(message, this); 6520 6521 switch (message.what) { 6522 case WifiMonitor.WPS_SUCCESS_EVENT: 6523 // Ignore intermediate success, wait for full connection 6524 break; 6525 case WifiMonitor.NETWORK_CONNECTION_EVENT: 6526 replyToMessage(mSourceMessage, WifiManager.WPS_COMPLETED); 6527 mSourceMessage.recycle(); 6528 mSourceMessage = null; 6529 deferMessage(message); 6530 transitionTo(mDisconnectedState); 6531 break; 6532 case WifiMonitor.WPS_OVERLAP_EVENT: 6533 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, 6534 WifiManager.WPS_OVERLAP_ERROR); 6535 mSourceMessage.recycle(); 6536 mSourceMessage = null; 6537 transitionTo(mDisconnectedState); 6538 break; 6539 case WifiMonitor.WPS_FAIL_EVENT: 6540 // Arg1 has the reason for the failure 6541 if ((message.arg1 != WifiManager.ERROR) || (message.arg2 != 0)) { 6542 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, message.arg1); 6543 mSourceMessage.recycle(); 6544 mSourceMessage = null; 6545 transitionTo(mDisconnectedState); 6546 } else { 6547 if (mVerboseLoggingEnabled) { 6548 log("Ignore unspecified fail event during WPS connection"); 6549 } 6550 } 6551 break; 6552 case WifiMonitor.WPS_TIMEOUT_EVENT: 6553 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, 6554 WifiManager.WPS_TIMED_OUT); 6555 mSourceMessage.recycle(); 6556 mSourceMessage = null; 6557 transitionTo(mDisconnectedState); 6558 break; 6559 case WifiManager.START_WPS: 6560 replyToMessage(message, WifiManager.WPS_FAILED, WifiManager.IN_PROGRESS); 6561 break; 6562 case WifiManager.CANCEL_WPS: 6563 if (mWifiNative.cancelWps()) { 6564 replyToMessage(message, WifiManager.CANCEL_WPS_SUCCEDED); 6565 } else { 6566 replyToMessage(message, WifiManager.CANCEL_WPS_FAILED, WifiManager.ERROR); 6567 } 6568 transitionTo(mDisconnectedState); 6569 break; 6570 /** 6571 * Defer all commands that can cause connections to a different network 6572 * or put the state machine out of connect mode 6573 */ 6574 case CMD_SET_OPERATIONAL_MODE: 6575 case WifiManager.CONNECT_NETWORK: 6576 case CMD_ENABLE_NETWORK: 6577 case CMD_RECONNECT: 6578 case CMD_REASSOCIATE: 6579 deferMessage(message); 6580 break; 6581 case CMD_START_CONNECT: 6582 case CMD_START_ROAM: 6583 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 6584 return HANDLED; 6585 case CMD_START_SCAN: 6586 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 6587 return HANDLED; 6588 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6589 if (mVerboseLoggingEnabled) log("Network connection lost"); 6590 handleNetworkDisconnect(); 6591 break; 6592 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 6593 if (mVerboseLoggingEnabled) { 6594 log("Ignore Assoc reject event during WPS Connection"); 6595 } 6596 break; 6597 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 6598 // Disregard auth failure events during WPS connection. The 6599 // EAP sequence is retried several times, and there might be 6600 // failures (especially for wps pin). We will get a WPS_XXX 6601 // event at the end of the sequence anyway. 6602 if (mVerboseLoggingEnabled) log("Ignore auth failure during WPS connection"); 6603 break; 6604 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6605 // Throw away supplicant state changes when WPS is running. 6606 // We will start getting supplicant state changes once we get 6607 // a WPS success or failure 6608 break; 6609 default: 6610 return NOT_HANDLED; 6611 } 6612 return HANDLED; 6613 } 6614 6615 @Override 6616 public void exit() { 6617 mWifiConfigManager.loadFromStore(); 6618 } 6619 } 6620 6621 class SoftApState extends State { 6622 private SoftApManager mSoftApManager; 6623 6624 private class SoftApListener implements SoftApManager.Listener { 6625 @Override 6626 public void onStateChanged(int state, int reason) { 6627 if (state == WIFI_AP_STATE_DISABLED) { 6628 sendMessage(CMD_AP_STOPPED); 6629 } else if (state == WIFI_AP_STATE_FAILED) { 6630 sendMessage(CMD_START_AP_FAILURE); 6631 } 6632 6633 setWifiApState(state, reason); 6634 } 6635 } 6636 6637 @Override 6638 public void enter() { 6639 final Message message = getCurrentMessage(); 6640 if (message.what != CMD_START_AP) { 6641 throw new RuntimeException("Illegal transition to SoftApState: " + message); 6642 } 6643 6644 IApInterface apInterface = setupDriverForSoftAp(); 6645 if (apInterface == null) { 6646 setWifiApState(WIFI_AP_STATE_FAILED, 6647 WifiManager.SAP_START_FAILURE_GENERAL); 6648 /** 6649 * Transition to InitialState to reset the 6650 * driver/HAL back to the initial state. 6651 */ 6652 transitionTo(mInitialState); 6653 return; 6654 } 6655 6656 WifiConfiguration config = (WifiConfiguration) message.obj; 6657 6658 checkAndSetConnectivityInstance(); 6659 mSoftApManager = mWifiInjector.makeSoftApManager(mNwService, 6660 new SoftApListener(), 6661 apInterface, 6662 config); 6663 mSoftApManager.start(); 6664 } 6665 6666 @Override 6667 public void exit() { 6668 mSoftApManager = null; 6669 } 6670 6671 @Override 6672 public boolean processMessage(Message message) { 6673 logStateAndMessage(message, this); 6674 6675 switch(message.what) { 6676 case CMD_START_AP: 6677 /* Ignore start command when it is starting/started. */ 6678 break; 6679 case CMD_STOP_AP: 6680 mSoftApManager.stop(); 6681 break; 6682 case CMD_START_AP_FAILURE: 6683 transitionTo(mInitialState); 6684 break; 6685 case CMD_AP_STOPPED: 6686 transitionTo(mInitialState); 6687 break; 6688 default: 6689 return NOT_HANDLED; 6690 } 6691 return HANDLED; 6692 } 6693 } 6694 6695 /** 6696 * State machine initiated requests can have replyTo set to null indicating 6697 * there are no recepients, we ignore those reply actions. 6698 */ 6699 private void replyToMessage(Message msg, int what) { 6700 if (msg.replyTo == null) return; 6701 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 6702 mReplyChannel.replyToMessage(msg, dstMsg); 6703 } 6704 6705 private void replyToMessage(Message msg, int what, int arg1) { 6706 if (msg.replyTo == null) return; 6707 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 6708 dstMsg.arg1 = arg1; 6709 mReplyChannel.replyToMessage(msg, dstMsg); 6710 } 6711 6712 private void replyToMessage(Message msg, int what, Object obj) { 6713 if (msg.replyTo == null) return; 6714 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 6715 dstMsg.obj = obj; 6716 mReplyChannel.replyToMessage(msg, dstMsg); 6717 } 6718 6719 /** 6720 * arg2 on the source message has a unique id that needs to be retained in replies 6721 * to match the request 6722 * <p>see WifiManager for details 6723 */ 6724 private Message obtainMessageWithWhatAndArg2(Message srcMsg, int what) { 6725 Message msg = Message.obtain(); 6726 msg.what = what; 6727 msg.arg2 = srcMsg.arg2; 6728 return msg; 6729 } 6730 6731 /** 6732 * @param wifiCredentialEventType WIFI_CREDENTIAL_SAVED or WIFI_CREDENTIAL_FORGOT 6733 * @param config Must have a WifiConfiguration object to succeed 6734 */ 6735 private void broadcastWifiCredentialChanged(int wifiCredentialEventType, 6736 WifiConfiguration config) { 6737 if (config != null && config.preSharedKey != null) { 6738 Intent intent = new Intent(WifiManager.WIFI_CREDENTIAL_CHANGED_ACTION); 6739 intent.putExtra(WifiManager.EXTRA_WIFI_CREDENTIAL_SSID, config.SSID); 6740 intent.putExtra(WifiManager.EXTRA_WIFI_CREDENTIAL_EVENT_TYPE, 6741 wifiCredentialEventType); 6742 mContext.sendBroadcastAsUser(intent, UserHandle.CURRENT, 6743 android.Manifest.permission.RECEIVE_WIFI_CREDENTIAL_CHANGE); 6744 } 6745 } 6746 6747 void handleGsmAuthRequest(SimAuthRequestData requestData) { 6748 if (targetWificonfiguration == null 6749 || targetWificonfiguration.networkId 6750 == lookupFrameworkNetworkId(requestData.networkId)) { 6751 logd("id matches targetWifiConfiguration"); 6752 } else { 6753 logd("id does not match targetWifiConfiguration"); 6754 return; 6755 } 6756 6757 String response = 6758 TelephonyUtil.getGsmSimAuthResponse(requestData.data, getTelephonyManager()); 6759 if (response == null) { 6760 mWifiNative.simAuthFailedResponse(requestData.networkId); 6761 } else { 6762 logv("Supplicant Response -" + response); 6763 mWifiNative.simAuthResponse(requestData.networkId, "GSM-AUTH", response); 6764 } 6765 } 6766 6767 void handle3GAuthRequest(SimAuthRequestData requestData) { 6768 if (targetWificonfiguration == null 6769 || targetWificonfiguration.networkId 6770 == lookupFrameworkNetworkId(requestData.networkId)) { 6771 logd("id matches targetWifiConfiguration"); 6772 } else { 6773 logd("id does not match targetWifiConfiguration"); 6774 return; 6775 } 6776 6777 SimAuthResponseData response = 6778 TelephonyUtil.get3GAuthResponse(requestData, getTelephonyManager()); 6779 if (response != null) { 6780 mWifiNative.simAuthResponse(requestData.networkId, response.type, response.response); 6781 } else { 6782 mWifiNative.umtsAuthFailedResponse(requestData.networkId); 6783 } 6784 } 6785 6786 /** 6787 * Automatically connect to the network specified 6788 * 6789 * @param networkId ID of the network to connect to 6790 * @param bssid BSSID of the network 6791 */ 6792 public void startConnectToNetwork(int networkId, String bssid) { 6793 synchronized (mWifiReqCountLock) { 6794 if (hasConnectionRequests()) { 6795 sendMessage(CMD_START_CONNECT, networkId, 0, bssid); 6796 } 6797 } 6798 } 6799 6800 /** 6801 * Automatically roam to the network specified 6802 * 6803 * @param networkId ID of the network to roam to 6804 * @param scanResult scan result which identifies the network to roam to 6805 */ 6806 public void startRoamToNetwork(int networkId, ScanResult scanResult) { 6807 sendMessage(CMD_START_ROAM, networkId, 0, scanResult); 6808 } 6809 6810 /** 6811 * Dynamically turn on/off WifiConnectivityManager 6812 * 6813 * @param enabled true-enable; false-disable 6814 */ 6815 public void enableWifiConnectivityManager(boolean enabled) { 6816 sendMessage(CMD_ENABLE_WIFI_CONNECTIVITY_MANAGER, enabled ? 1 : 0); 6817 } 6818 6819 /** 6820 * @param reason reason code from supplicant on network disconnected event 6821 * @return true if this is a suspicious disconnect 6822 */ 6823 static boolean unexpectedDisconnectedReason(int reason) { 6824 return reason == 2 // PREV_AUTH_NOT_VALID 6825 || reason == 6 // CLASS2_FRAME_FROM_NONAUTH_STA 6826 || reason == 7 // FRAME_FROM_NONASSOC_STA 6827 || reason == 8 // STA_HAS_LEFT 6828 || reason == 9 // STA_REQ_ASSOC_WITHOUT_AUTH 6829 || reason == 14 // MICHAEL_MIC_FAILURE 6830 || reason == 15 // 4WAY_HANDSHAKE_TIMEOUT 6831 || reason == 16 // GROUP_KEY_UPDATE_TIMEOUT 6832 || reason == 18 // GROUP_CIPHER_NOT_VALID 6833 || reason == 19 // PAIRWISE_CIPHER_NOT_VALID 6834 || reason == 23 // IEEE_802_1X_AUTH_FAILED 6835 || reason == 34; // DISASSOC_LOW_ACK 6836 } 6837 6838 /** 6839 * Update WifiMetrics before dumping 6840 */ 6841 void updateWifiMetrics() { 6842 int numSavedNetworks = mWifiConfigManager.getConfiguredNetworks().size(); 6843 int numOpenNetworks = 0; 6844 int numPersonalNetworks = 0; 6845 int numEnterpriseNetworks = 0; 6846 int numNetworksAddedByUser = 0; 6847 int numNetworksAddedByApps = 0; 6848 int numHiddenNetworks = 0; 6849 int numPasspoint = 0; 6850 for (WifiConfiguration config : mWifiConfigManager.getSavedNetworks()) { 6851 if (config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.NONE)) { 6852 numOpenNetworks++; 6853 } else if (config.isEnterprise()) { 6854 numEnterpriseNetworks++; 6855 } else { 6856 numPersonalNetworks++; 6857 } 6858 if (config.selfAdded) { 6859 numNetworksAddedByUser++; 6860 } else { 6861 numNetworksAddedByApps++; 6862 } 6863 if (config.hiddenSSID) { 6864 numHiddenNetworks++; 6865 } 6866 if (config.isPasspoint()) { 6867 numPasspoint++; 6868 } 6869 } 6870 mWifiMetrics.setNumSavedNetworks(numSavedNetworks); 6871 mWifiMetrics.setNumOpenNetworks(numOpenNetworks); 6872 mWifiMetrics.setNumPersonalNetworks(numPersonalNetworks); 6873 mWifiMetrics.setNumEnterpriseNetworks(numEnterpriseNetworks); 6874 mWifiMetrics.setNumNetworksAddedByUser(numNetworksAddedByUser); 6875 mWifiMetrics.setNumNetworksAddedByApps(numNetworksAddedByApps); 6876 mWifiMetrics.setNumHiddenNetworks(numHiddenNetworks); 6877 mWifiMetrics.setNumPasspointNetworks(numPasspoint); 6878 } 6879 6880 private static String getLinkPropertiesSummary(LinkProperties lp) { 6881 List<String> attributes = new ArrayList<>(6); 6882 if (lp.hasIPv4Address()) { 6883 attributes.add("v4"); 6884 } 6885 if (lp.hasIPv4DefaultRoute()) { 6886 attributes.add("v4r"); 6887 } 6888 if (lp.hasIPv4DnsServer()) { 6889 attributes.add("v4dns"); 6890 } 6891 if (lp.hasGlobalIPv6Address()) { 6892 attributes.add("v6"); 6893 } 6894 if (lp.hasIPv6DefaultRoute()) { 6895 attributes.add("v6r"); 6896 } 6897 if (lp.hasIPv6DnsServer()) { 6898 attributes.add("v6dns"); 6899 } 6900 6901 return TextUtils.join(" ", attributes); 6902 } 6903 6904 /** 6905 * Gets the SSID from the WifiConfiguration pointed at by 'mTargetNetworkId' 6906 * This should match the network config framework is attempting to connect to. 6907 */ 6908 private String getTargetSsid() { 6909 WifiConfiguration currentConfig = mWifiConfigManager.getConfiguredNetwork(mTargetNetworkId); 6910 if (currentConfig != null) { 6911 return currentConfig.SSID; 6912 } 6913 return null; 6914 } 6915 6916 private void p2pSendMessage(int what) { 6917 if (mWifiP2pChannel != null) { 6918 mWifiP2pChannel.sendMessage(what); 6919 } 6920 } 6921 6922 private void p2pSendMessage(int what, int arg1) { 6923 if (mWifiP2pChannel != null) { 6924 mWifiP2pChannel.sendMessage(what, arg1); 6925 } 6926 } 6927 6928 /** 6929 * Check if there is any connection request for WiFi network. 6930 * Note, caller of this helper function must acquire mWifiReqCountLock. 6931 */ 6932 private boolean hasConnectionRequests() { 6933 return mConnectionReqCount > 0 || mUntrustedReqCount > 0; 6934 } 6935 6936 /** 6937 * Returns whether CMD_IP_REACHABILITY_LOST events should trigger disconnects. 6938 */ 6939 public boolean getIpReachabilityDisconnectEnabled() { 6940 return mIpReachabilityDisconnectEnabled; 6941 } 6942 6943 /** 6944 * Sets whether CMD_IP_REACHABILITY_LOST events should trigger disconnects. 6945 */ 6946 public void setIpReachabilityDisconnectEnabled(boolean enabled) { 6947 mIpReachabilityDisconnectEnabled = enabled; 6948 } 6949} 6950