WifiStateMachine.java revision dec0c578a471ecfd861164d7522ec09c7d9976a7
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 that a new connection attempt is starting. 3322 */ 3323 private void reportConnectionAttemptStart( 3324 WifiConfiguration config, String targetBSSID, int roamType) { 3325 mWifiMetrics.startConnectionEvent(config, targetBSSID, roamType); 3326 mWifiDiagnostics.reportConnectionEvent(WifiDiagnostics.CONNECTION_EVENT_STARTED); 3327 } 3328 3329 /** 3330 * Inform other components (WifiMetrics, WifiDiagnostics, etc.) that the current connection attempt 3331 * has concluded. 3332 */ 3333 private void reportConnectionAttemptEnd(int level2FailureCode, int connectivityFailureCode) { 3334 mWifiMetrics.endConnectionEvent(level2FailureCode, connectivityFailureCode); 3335 switch (level2FailureCode) { 3336 case WifiMetrics.ConnectionEvent.FAILURE_NONE: 3337 // Ideally, we'd wait until IP reachability has been confirmed. this code falls 3338 // short in two ways: 3339 // - at the time of the CMD_IP_CONFIGURATION_SUCCESSFUL event, we don't know if we 3340 // actually have ARP reachability. it might be better to wait until the wifi 3341 // network has been validated by IpManager. 3342 // - in the case of a roaming event (intra-SSID), we probably trigger when L2 is 3343 // complete. 3344 // 3345 // TODO(b/34181219): Fix the above. 3346 mWifiDiagnostics.reportConnectionEvent(WifiDiagnostics.CONNECTION_EVENT_SUCCEEDED); 3347 break; 3348 case WifiMetrics.ConnectionEvent.FAILURE_REDUNDANT_CONNECTION_ATTEMPT: 3349 case WifiMetrics.ConnectionEvent.FAILURE_CONNECT_NETWORK_FAILED: 3350 // WifiDiagnostics doesn't care about pre-empted connections, or cases 3351 // where we failed to initiate a connection attempt with supplicant. 3352 break; 3353 default: 3354 mWifiDiagnostics.reportConnectionEvent(WifiDiagnostics.CONNECTION_EVENT_FAILED); 3355 } 3356 } 3357 3358 private void handleIPv4Success(DhcpResults dhcpResults) { 3359 if (mVerboseLoggingEnabled) { 3360 logd("handleIPv4Success <" + dhcpResults.toString() + ">"); 3361 logd("link address " + dhcpResults.ipAddress); 3362 } 3363 3364 Inet4Address addr; 3365 synchronized (mDhcpResultsLock) { 3366 mDhcpResults = dhcpResults; 3367 addr = (Inet4Address) dhcpResults.ipAddress.getAddress(); 3368 } 3369 3370 if (isRoaming()) { 3371 int previousAddress = mWifiInfo.getIpAddress(); 3372 int newAddress = NetworkUtils.inetAddressToInt(addr); 3373 if (previousAddress != newAddress) { 3374 logd("handleIPv4Success, roaming and address changed" + 3375 mWifiInfo + " got: " + addr); 3376 } 3377 } 3378 mWifiInfo.setInetAddress(addr); 3379 if (!mWifiInfo.getMeteredHint()) { // don't override the value if already set. 3380 mWifiInfo.setMeteredHint(dhcpResults.hasMeteredHint()); 3381 updateCapabilities(getCurrentWifiConfiguration()); 3382 } 3383 } 3384 3385 private void handleSuccessfulIpConfiguration() { 3386 mLastSignalLevel = -1; // Force update of signal strength 3387 WifiConfiguration c = getCurrentWifiConfiguration(); 3388 if (c != null) { 3389 // Reset IP failure tracking 3390 c.getNetworkSelectionStatus().clearDisableReasonCounter( 3391 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3392 3393 // Tell the framework whether the newly connected network is trusted or untrusted. 3394 updateCapabilities(c); 3395 } 3396 if (c != null) { 3397 ScanResult result = getCurrentScanResult(); 3398 if (result == null) { 3399 logd("WifiStateMachine: handleSuccessfulIpConfiguration and no scan results" + 3400 c.configKey()); 3401 } else { 3402 // Clear the per BSSID failure count 3403 result.numIpConfigFailures = 0; 3404 } 3405 } 3406 } 3407 3408 private void handleIPv4Failure() { 3409 // TODO: Move this to provisioning failure, not DHCP failure. 3410 // DHCPv4 failure is expected on an IPv6-only network. 3411 mWifiDiagnostics.captureBugReportData(WifiDiagnostics.REPORT_REASON_DHCP_FAILURE); 3412 if (mVerboseLoggingEnabled) { 3413 int count = -1; 3414 WifiConfiguration config = getCurrentWifiConfiguration(); 3415 if (config != null) { 3416 count = config.getNetworkSelectionStatus().getDisableReasonCounter( 3417 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3418 } 3419 log("DHCP failure count=" + count); 3420 } 3421 reportConnectionAttemptEnd( 3422 WifiMetrics.ConnectionEvent.FAILURE_DHCP, 3423 WifiMetricsProto.ConnectionEvent.HLF_DHCP); 3424 synchronized(mDhcpResultsLock) { 3425 if (mDhcpResults != null) { 3426 mDhcpResults.clear(); 3427 } 3428 } 3429 if (mVerboseLoggingEnabled) { 3430 logd("handleIPv4Failure"); 3431 } 3432 } 3433 3434 private void handleIpConfigurationLost() { 3435 mWifiInfo.setInetAddress(null); 3436 mWifiInfo.setMeteredHint(false); 3437 3438 mWifiConfigManager.updateNetworkSelectionStatus(mLastNetworkId, 3439 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3440 3441 /* DHCP times out after about 30 seconds, we do a 3442 * disconnect thru supplicant, we will let autojoin retry connecting to the network 3443 */ 3444 mWifiNative.disconnect(); 3445 } 3446 3447 // TODO: De-duplicated this and handleIpConfigurationLost(). 3448 private void handleIpReachabilityLost() { 3449 mWifiInfo.setInetAddress(null); 3450 mWifiInfo.setMeteredHint(false); 3451 3452 // TODO: Determine whether to call some form of mWifiConfigManager.handleSSIDStateChange(). 3453 3454 // Disconnect via supplicant, and let autojoin retry connecting to the network. 3455 mWifiNative.disconnect(); 3456 } 3457 3458 private static IClientInterface setupDriverForClientMode(IWificond wificond) { 3459 if (wificond == null) { 3460 Log.e(TAG, "Failed to get reference to wificond"); 3461 return null; 3462 } 3463 3464 IClientInterface clientInterface = null; 3465 try { 3466 clientInterface = wificond.createClientInterface(); 3467 } catch (RemoteException e1) { } 3468 3469 if (clientInterface == null) { 3470 Log.e(TAG, "Could not get IClientInterface instance from wificond"); 3471 return null; 3472 } else { 3473 Binder.allowBlocking(clientInterface.asBinder()); 3474 } 3475 3476 return clientInterface; 3477 } 3478 3479 private IApInterface setupDriverForSoftAp() { 3480 if (mWificond == null) { 3481 Log.e(TAG, "Failed to get reference to wificond"); 3482 return null; 3483 } 3484 3485 IApInterface apInterface = null; 3486 try { 3487 apInterface = mWificond.createApInterface(); 3488 } catch (RemoteException e1) { } 3489 3490 if (apInterface == null) { 3491 Log.e(TAG, "Could not get IApInterface instance from wificond"); 3492 return null; 3493 } else { 3494 Binder.allowBlocking(apInterface.asBinder()); 3495 } 3496 3497 if (!mWifiNative.startHal()) { 3498 // starting HAL is optional 3499 Log.e(TAG, "Failed to start HAL for AP mode"); 3500 } 3501 return apInterface; 3502 } 3503 3504 private byte[] macAddressFromString(String macString) { 3505 String[] macBytes = macString.split(":"); 3506 if (macBytes.length != 6) { 3507 throw new IllegalArgumentException("MAC address should be 6 bytes long!"); 3508 } 3509 byte[] mac = new byte[6]; 3510 for (int i = 0; i < macBytes.length; i++) { 3511 Integer hexVal = Integer.parseInt(macBytes[i], 16); 3512 mac[i] = hexVal.byteValue(); 3513 } 3514 return mac; 3515 } 3516 3517 /* 3518 * Read a MAC address in /proc/arp/table, used by WifistateMachine 3519 * so as to record MAC address of default gateway. 3520 **/ 3521 private String macAddressFromRoute(String ipAddress) { 3522 String macAddress = null; 3523 BufferedReader reader = null; 3524 try { 3525 reader = new BufferedReader(new FileReader("/proc/net/arp")); 3526 3527 // Skip over the line bearing colum titles 3528 String line = reader.readLine(); 3529 3530 while ((line = reader.readLine()) != null) { 3531 String[] tokens = line.split("[ ]+"); 3532 if (tokens.length < 6) { 3533 continue; 3534 } 3535 3536 // ARP column format is 3537 // Address HWType HWAddress Flags Mask IFace 3538 String ip = tokens[0]; 3539 String mac = tokens[3]; 3540 3541 if (ipAddress.equals(ip)) { 3542 macAddress = mac; 3543 break; 3544 } 3545 } 3546 3547 if (macAddress == null) { 3548 loge("Did not find remoteAddress {" + ipAddress + "} in " + 3549 "/proc/net/arp"); 3550 } 3551 3552 } catch (FileNotFoundException e) { 3553 loge("Could not open /proc/net/arp to lookup mac address"); 3554 } catch (IOException e) { 3555 loge("Could not read /proc/net/arp to lookup mac address"); 3556 } finally { 3557 try { 3558 if (reader != null) { 3559 reader.close(); 3560 } 3561 } catch (IOException e) { 3562 // Do nothing 3563 } 3564 } 3565 return macAddress; 3566 3567 } 3568 3569 private class WifiNetworkFactory extends NetworkFactory { 3570 public WifiNetworkFactory(Looper l, Context c, String TAG, NetworkCapabilities f) { 3571 super(l, c, TAG, f); 3572 } 3573 3574 @Override 3575 protected void needNetworkFor(NetworkRequest networkRequest, int score) { 3576 synchronized (mWifiReqCountLock) { 3577 if (++mConnectionReqCount == 1) { 3578 if (mWifiConnectivityManager != null && mUntrustedReqCount == 0) { 3579 mWifiConnectivityManager.enable(true); 3580 } 3581 } 3582 } 3583 } 3584 3585 @Override 3586 protected void releaseNetworkFor(NetworkRequest networkRequest) { 3587 synchronized (mWifiReqCountLock) { 3588 if (--mConnectionReqCount == 0) { 3589 if (mWifiConnectivityManager != null && mUntrustedReqCount == 0) { 3590 mWifiConnectivityManager.enable(false); 3591 } 3592 } 3593 } 3594 } 3595 3596 @Override 3597 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3598 pw.println("mConnectionReqCount " + mConnectionReqCount); 3599 } 3600 3601 } 3602 3603 private class UntrustedWifiNetworkFactory extends NetworkFactory { 3604 public UntrustedWifiNetworkFactory(Looper l, Context c, String tag, NetworkCapabilities f) { 3605 super(l, c, tag, f); 3606 } 3607 3608 @Override 3609 protected void needNetworkFor(NetworkRequest networkRequest, int score) { 3610 if (!networkRequest.networkCapabilities.hasCapability( 3611 NetworkCapabilities.NET_CAPABILITY_TRUSTED)) { 3612 synchronized (mWifiReqCountLock) { 3613 if (++mUntrustedReqCount == 1) { 3614 if (mWifiConnectivityManager != null) { 3615 if (mConnectionReqCount == 0) { 3616 mWifiConnectivityManager.enable(true); 3617 } 3618 mWifiConnectivityManager.setUntrustedConnectionAllowed(true); 3619 } 3620 } 3621 } 3622 } 3623 } 3624 3625 @Override 3626 protected void releaseNetworkFor(NetworkRequest networkRequest) { 3627 if (!networkRequest.networkCapabilities.hasCapability( 3628 NetworkCapabilities.NET_CAPABILITY_TRUSTED)) { 3629 synchronized (mWifiReqCountLock) { 3630 if (--mUntrustedReqCount == 0) { 3631 if (mWifiConnectivityManager != null) { 3632 mWifiConnectivityManager.setUntrustedConnectionAllowed(false); 3633 if (mConnectionReqCount == 0) { 3634 mWifiConnectivityManager.enable(false); 3635 } 3636 } 3637 } 3638 } 3639 } 3640 } 3641 3642 @Override 3643 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3644 pw.println("mUntrustedReqCount " + mUntrustedReqCount); 3645 } 3646 } 3647 3648 void maybeRegisterNetworkFactory() { 3649 if (mNetworkFactory == null) { 3650 checkAndSetConnectivityInstance(); 3651 if (mCm != null) { 3652 mNetworkFactory = new WifiNetworkFactory(getHandler().getLooper(), mContext, 3653 NETWORKTYPE, mNetworkCapabilitiesFilter); 3654 mNetworkFactory.setScoreFilter(60); 3655 mNetworkFactory.register(); 3656 3657 // We can't filter untrusted network in the capabilities filter because a trusted 3658 // network would still satisfy a request that accepts untrusted ones. 3659 mUntrustedNetworkFactory = new UntrustedWifiNetworkFactory(getHandler().getLooper(), 3660 mContext, NETWORKTYPE_UNTRUSTED, mNetworkCapabilitiesFilter); 3661 mUntrustedNetworkFactory.setScoreFilter(Integer.MAX_VALUE); 3662 mUntrustedNetworkFactory.register(); 3663 } 3664 } 3665 } 3666 3667 /** 3668 * WifiStateMachine needs to enable/disable other services when wifi is in client mode. This 3669 * method allows WifiStateMachine to get these additional system services. 3670 * 3671 * At this time, this method is used to setup variables for P2P service and Wifi Aware. 3672 */ 3673 private void getAdditionalWifiServiceInterfaces() { 3674 // First set up Wifi Direct 3675 if (mP2pSupported) { 3676 IBinder s1 = mFacade.getService(Context.WIFI_P2P_SERVICE); 3677 WifiP2pServiceImpl wifiP2pServiceImpl = 3678 (WifiP2pServiceImpl) IWifiP2pManager.Stub.asInterface(s1); 3679 3680 if (wifiP2pServiceImpl != null) { 3681 mWifiP2pChannel = new AsyncChannel(); 3682 mWifiP2pChannel.connect(mContext, getHandler(), 3683 wifiP2pServiceImpl.getP2pStateMachineMessenger()); 3684 } 3685 } 3686 } 3687 3688 /******************************************************** 3689 * HSM states 3690 *******************************************************/ 3691 3692 class DefaultState extends State { 3693 3694 @Override 3695 public boolean processMessage(Message message) { 3696 logStateAndMessage(message, this); 3697 3698 switch (message.what) { 3699 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 3700 AsyncChannel ac = (AsyncChannel) message.obj; 3701 if (ac == mWifiP2pChannel) { 3702 if (message.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 3703 p2pSendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 3704 } else { 3705 loge("WifiP2pService connection failure, error=" + message.arg1); 3706 } 3707 } else { 3708 loge("got HALF_CONNECTED for unknown channel"); 3709 } 3710 break; 3711 } 3712 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 3713 AsyncChannel ac = (AsyncChannel) message.obj; 3714 if (ac == mWifiP2pChannel) { 3715 loge("WifiP2pService channel lost, message.arg1 =" + message.arg1); 3716 //TODO: Re-establish connection to state machine after a delay 3717 // mWifiP2pChannel.connect(mContext, getHandler(), 3718 // mWifiP2pManager.getMessenger()); 3719 } 3720 break; 3721 } 3722 case CMD_BLUETOOTH_ADAPTER_STATE_CHANGE: 3723 mBluetoothConnectionActive = (message.arg1 != 3724 BluetoothAdapter.STATE_DISCONNECTED); 3725 break; 3726 /* Synchronous call returns */ 3727 case CMD_PING_SUPPLICANT: 3728 case CMD_ENABLE_NETWORK: 3729 case CMD_ADD_OR_UPDATE_NETWORK: 3730 case CMD_REMOVE_NETWORK: 3731 case CMD_SAVE_CONFIG: 3732 replyToMessage(message, message.what, FAILURE); 3733 break; 3734 case CMD_GET_CONFIGURED_NETWORKS: 3735 replyToMessage(message, message.what, (List<WifiConfiguration>) null); 3736 break; 3737 case CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS: 3738 replyToMessage(message, message.what, (List<WifiConfiguration>) null); 3739 break; 3740 case CMD_ENABLE_RSSI_POLL: 3741 mEnableRssiPolling = (message.arg1 == 1); 3742 break; 3743 case CMD_SET_HIGH_PERF_MODE: 3744 if (message.arg1 == 1) { 3745 setSuspendOptimizations(SUSPEND_DUE_TO_HIGH_PERF, false); 3746 } else { 3747 setSuspendOptimizations(SUSPEND_DUE_TO_HIGH_PERF, true); 3748 } 3749 break; 3750 case CMD_BOOT_COMPLETED: 3751 // get other services that we need to manage 3752 getAdditionalWifiServiceInterfaces(); 3753 if (!mWifiConfigManager.loadFromStore()) { 3754 Log.e(TAG, "Failed to load from config store"); 3755 } 3756 maybeRegisterNetworkFactory(); 3757 break; 3758 case CMD_SCREEN_STATE_CHANGED: 3759 handleScreenStateChanged(message.arg1 != 0); 3760 break; 3761 /* Discard */ 3762 case CMD_START_SCAN: 3763 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3764 break; 3765 case CMD_START_SUPPLICANT: 3766 case CMD_STOP_SUPPLICANT: 3767 case CMD_STOP_SUPPLICANT_FAILED: 3768 case CMD_DRIVER_START_TIMED_OUT: 3769 case CMD_START_AP: 3770 case CMD_START_AP_FAILURE: 3771 case CMD_STOP_AP: 3772 case CMD_AP_STOPPED: 3773 case CMD_DISCONNECT: 3774 case CMD_RECONNECT: 3775 case CMD_REASSOCIATE: 3776 case CMD_RELOAD_TLS_AND_RECONNECT: 3777 case WifiMonitor.SUP_CONNECTION_EVENT: 3778 case WifiMonitor.SUP_DISCONNECTION_EVENT: 3779 case WifiMonitor.NETWORK_CONNECTION_EVENT: 3780 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 3781 case WifiMonitor.SCAN_RESULTS_EVENT: 3782 case WifiMonitor.SCAN_FAILED_EVENT: 3783 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 3784 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 3785 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 3786 case WifiMonitor.WPS_OVERLAP_EVENT: 3787 case CMD_SET_OPERATIONAL_MODE: 3788 case CMD_RSSI_POLL: 3789 case DhcpClient.CMD_PRE_DHCP_ACTION: 3790 case DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE: 3791 case DhcpClient.CMD_POST_DHCP_ACTION: 3792 case CMD_NO_NETWORKS_PERIODIC_SCAN: 3793 case CMD_DISABLE_P2P_RSP: 3794 case WifiMonitor.SUP_REQUEST_IDENTITY: 3795 case CMD_TEST_NETWORK_DISCONNECT: 3796 case WifiMonitor.SUP_REQUEST_SIM_AUTH: 3797 case CMD_TARGET_BSSID: 3798 case CMD_START_CONNECT: 3799 case CMD_START_ROAM: 3800 case CMD_ASSOCIATED_BSSID: 3801 case CMD_UNWANTED_NETWORK: 3802 case CMD_DISCONNECTING_WATCHDOG_TIMER: 3803 case CMD_ROAM_WATCHDOG_TIMER: 3804 case CMD_DISABLE_EPHEMERAL_NETWORK: 3805 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3806 break; 3807 case CMD_SET_SUSPEND_OPT_ENABLED: 3808 if (message.arg1 == 1) { 3809 if (message.arg2 == 1) { 3810 mSuspendWakeLock.release(); 3811 } 3812 setSuspendOptimizations(SUSPEND_DUE_TO_SCREEN, true); 3813 } else { 3814 setSuspendOptimizations(SUSPEND_DUE_TO_SCREEN, false); 3815 } 3816 break; 3817 case WifiMonitor.DRIVER_HUNG_EVENT: 3818 setSupplicantRunning(false); 3819 setSupplicantRunning(true); 3820 break; 3821 case WifiManager.CONNECT_NETWORK: 3822 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 3823 WifiManager.BUSY); 3824 break; 3825 case WifiManager.FORGET_NETWORK: 3826 replyToMessage(message, WifiManager.FORGET_NETWORK_FAILED, 3827 WifiManager.BUSY); 3828 break; 3829 case WifiManager.SAVE_NETWORK: 3830 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 3831 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 3832 WifiManager.BUSY); 3833 break; 3834 case WifiManager.START_WPS: 3835 replyToMessage(message, WifiManager.WPS_FAILED, 3836 WifiManager.BUSY); 3837 break; 3838 case WifiManager.CANCEL_WPS: 3839 replyToMessage(message, WifiManager.CANCEL_WPS_FAILED, 3840 WifiManager.BUSY); 3841 break; 3842 case WifiManager.DISABLE_NETWORK: 3843 replyToMessage(message, WifiManager.DISABLE_NETWORK_FAILED, 3844 WifiManager.BUSY); 3845 break; 3846 case WifiManager.RSSI_PKTCNT_FETCH: 3847 replyToMessage(message, WifiManager.RSSI_PKTCNT_FETCH_FAILED, 3848 WifiManager.BUSY); 3849 break; 3850 case CMD_GET_SUPPORTED_FEATURES: 3851 int featureSet = mWifiNative.getSupportedFeatureSet(); 3852 replyToMessage(message, message.what, featureSet); 3853 break; 3854 case CMD_FIRMWARE_ALERT: 3855 if (mWifiDiagnostics != null) { 3856 byte[] buffer = (byte[])message.obj; 3857 int alertReason = message.arg1; 3858 mWifiDiagnostics.captureAlertData(alertReason, buffer); 3859 mWifiMetrics.incrementAlertReasonCount(alertReason); 3860 } 3861 break; 3862 case CMD_GET_LINK_LAYER_STATS: 3863 // Not supported hence reply with error message 3864 replyToMessage(message, message.what, null); 3865 break; 3866 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 3867 NetworkInfo info = (NetworkInfo) message.obj; 3868 mP2pConnected.set(info.isConnected()); 3869 break; 3870 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 3871 mTemporarilyDisconnectWifi = (message.arg1 == 1); 3872 replyToMessage(message, WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE); 3873 break; 3874 /* Link configuration (IP address, DNS, ...) changes notified via netlink */ 3875 case CMD_UPDATE_LINKPROPERTIES: 3876 updateLinkProperties((LinkProperties) message.obj); 3877 break; 3878 case CMD_GET_MATCHING_CONFIG: 3879 replyToMessage(message, message.what); 3880 break; 3881 case CMD_IP_CONFIGURATION_SUCCESSFUL: 3882 case CMD_IP_CONFIGURATION_LOST: 3883 case CMD_IP_REACHABILITY_LOST: 3884 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3885 break; 3886 case CMD_GET_CONNECTION_STATISTICS: 3887 replyToMessage(message, message.what, mWifiConnectionStatistics); 3888 break; 3889 case CMD_REMOVE_APP_CONFIGURATIONS: 3890 deferMessage(message); 3891 break; 3892 case CMD_REMOVE_USER_CONFIGURATIONS: 3893 deferMessage(message); 3894 break; 3895 case CMD_START_IP_PACKET_OFFLOAD: 3896 if (mNetworkAgent != null) mNetworkAgent.onPacketKeepaliveEvent( 3897 message.arg1, 3898 ConnectivityManager.PacketKeepalive.ERROR_INVALID_NETWORK); 3899 break; 3900 case CMD_STOP_IP_PACKET_OFFLOAD: 3901 if (mNetworkAgent != null) mNetworkAgent.onPacketKeepaliveEvent( 3902 message.arg1, 3903 ConnectivityManager.PacketKeepalive.ERROR_INVALID_NETWORK); 3904 break; 3905 case CMD_START_RSSI_MONITORING_OFFLOAD: 3906 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3907 break; 3908 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 3909 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3910 break; 3911 case CMD_USER_SWITCH: 3912 Set<Integer> removedNetworkIds = 3913 mWifiConfigManager.handleUserSwitch(message.arg1); 3914 if (removedNetworkIds.contains(mTargetNetworkId) || 3915 removedNetworkIds.contains(mLastNetworkId)) { 3916 // Disconnect and let autojoin reselect a new network 3917 sendMessage(CMD_DISCONNECT); 3918 } 3919 break; 3920 case CMD_USER_UNLOCK: 3921 mWifiConfigManager.handleUserUnlock(message.arg1); 3922 break; 3923 case CMD_USER_STOP: 3924 mWifiConfigManager.handleUserStop(message.arg1); 3925 break; 3926 case CMD_QUERY_OSU_ICON: 3927 case CMD_MATCH_PROVIDER_NETWORK: 3928 /* reply with arg1 = 0 - it returns API failure to the calling app 3929 * (message.what is not looked at) 3930 */ 3931 replyToMessage(message, message.what); 3932 break; 3933 case CMD_RESET_SIM_NETWORKS: 3934 /* Defer this message until supplicant is started. */ 3935 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 3936 deferMessage(message); 3937 break; 3938 case CMD_INSTALL_PACKET_FILTER: 3939 mWifiNative.installPacketFilter((byte[]) message.obj); 3940 break; 3941 case CMD_SET_FALLBACK_PACKET_FILTERING: 3942 if ((boolean) message.obj) { 3943 mWifiNative.startFilteringMulticastV4Packets(); 3944 } else { 3945 mWifiNative.stopFilteringMulticastV4Packets(); 3946 } 3947 break; 3948 case CMD_CLIENT_INTERFACE_BINDER_DEATH: 3949 // We have lost contact with a client interface, which means that we cannot 3950 // trust that the driver is up or that the interface is ready. We are fit 3951 // for no WiFi related work. 3952 transitionTo(mInitialState); 3953 break; 3954 default: 3955 loge("Error! unhandled message" + message); 3956 break; 3957 } 3958 return HANDLED; 3959 } 3960 } 3961 3962 class InitialState extends State { 3963 3964 private void cleanup() { 3965 // Tearing down the client interfaces below is going to stop our supplicant. 3966 mWifiMonitor.stopAllMonitoring(); 3967 3968 mDeathRecipient.unlinkToDeath(); 3969 if (mWificond != null) { 3970 try { 3971 mWificond.tearDownInterfaces(); 3972 } catch (RemoteException e) { 3973 // There is very little we can do here 3974 Log.e(TAG, "Failed to tear down interfaces via wificond"); 3975 } 3976 mWificond = null; 3977 } 3978 mWifiNative.stopHal(); 3979 } 3980 3981 @Override 3982 public void enter() { 3983 cleanup(); 3984 } 3985 3986 @Override 3987 public boolean processMessage(Message message) { 3988 logStateAndMessage(message, this); 3989 switch (message.what) { 3990 case CMD_START_SUPPLICANT: 3991 // Refresh our reference to wificond. This allows us to tolerate restarts. 3992 mWificond = mWifiInjector.makeWificond(); 3993 mClientInterface = setupDriverForClientMode(mWificond); 3994 if (mClientInterface == null || 3995 !mDeathRecipient.linkToDeath(mClientInterface.asBinder())) { 3996 setWifiState(WifiManager.WIFI_STATE_UNKNOWN); 3997 cleanup(); 3998 break; 3999 } 4000 4001 try { 4002 // A runtime crash or shutting down AP mode can leave 4003 // IP addresses configured, and this affects 4004 // connectivity when supplicant starts up. 4005 // Ensure we have no IP addresses before a supplicant start. 4006 mNwService.clearInterfaceAddresses(mInterfaceName); 4007 4008 // Set privacy extensions 4009 mNwService.setInterfaceIpv6PrivacyExtensions(mInterfaceName, true); 4010 4011 // IPv6 is enabled only as long as access point is connected since: 4012 // - IPv6 addresses and routes stick around after disconnection 4013 // - kernel is unaware when connected and fails to start IPv6 negotiation 4014 // - kernel can start autoconfiguration when 802.1x is not complete 4015 mNwService.disableIpv6(mInterfaceName); 4016 } catch (RemoteException re) { 4017 loge("Unable to change interface settings: " + re); 4018 } catch (IllegalStateException ie) { 4019 loge("Unable to change interface settings: " + ie); 4020 } 4021 4022 if (!mWifiNative.startHal()) { 4023 // starting HAL is optional 4024 Log.e(TAG, "Failed to start HAL for client mode"); 4025 } 4026 4027 try { 4028 if (!mClientInterface.enableSupplicant()) { 4029 loge("Failed to start supplicant!"); 4030 setWifiState(WifiManager.WIFI_STATE_UNKNOWN); 4031 cleanup(); 4032 break; 4033 } 4034 } catch (RemoteException e) { 4035 cleanup(); 4036 break; 4037 } 4038 setSupplicantLogLevel(); 4039 setWifiState(WIFI_STATE_ENABLING); 4040 if (mVerboseLoggingEnabled) log("Supplicant start successful"); 4041 mWifiMonitor.startMonitoring(mInterfaceName); 4042 transitionTo(mSupplicantStartingState); 4043 break; 4044 case CMD_START_AP: 4045 // Refresh our reference to wificond. This allows us to tolerate restarts. 4046 mWificond = mWifiInjector.makeWificond(); 4047 transitionTo(mSoftApState); 4048 break; 4049 case CMD_SET_OPERATIONAL_MODE: 4050 mOperationalMode = message.arg1; 4051 if (mOperationalMode != DISABLED_MODE) { 4052 sendMessage(CMD_START_SUPPLICANT); 4053 } 4054 break; 4055 default: 4056 return NOT_HANDLED; 4057 } 4058 return HANDLED; 4059 } 4060 } 4061 4062 class SupplicantStartingState extends State { 4063 private void initializeWpsDetails() { 4064 String detail; 4065 detail = mPropertyService.get("ro.product.name", ""); 4066 if (!mWifiNative.setDeviceName(detail)) { 4067 loge("Failed to set device name " + detail); 4068 } 4069 detail = mPropertyService.get("ro.product.manufacturer", ""); 4070 if (!mWifiNative.setManufacturer(detail)) { 4071 loge("Failed to set manufacturer " + detail); 4072 } 4073 detail = mPropertyService.get("ro.product.model", ""); 4074 if (!mWifiNative.setModelName(detail)) { 4075 loge("Failed to set model name " + detail); 4076 } 4077 detail = mPropertyService.get("ro.product.model", ""); 4078 if (!mWifiNative.setModelNumber(detail)) { 4079 loge("Failed to set model number " + detail); 4080 } 4081 detail = mPropertyService.get("ro.serialno", ""); 4082 if (!mWifiNative.setSerialNumber(detail)) { 4083 loge("Failed to set serial number " + detail); 4084 } 4085 if (!mWifiNative.setConfigMethods("physical_display virtual_push_button")) { 4086 loge("Failed to set WPS config methods"); 4087 } 4088 if (!mWifiNative.setDeviceType(mPrimaryDeviceType)) { 4089 loge("Failed to set primary device type " + mPrimaryDeviceType); 4090 } 4091 } 4092 4093 @Override 4094 public boolean processMessage(Message message) { 4095 logStateAndMessage(message, this); 4096 4097 switch(message.what) { 4098 case WifiMonitor.SUP_CONNECTION_EVENT: 4099 if (mVerboseLoggingEnabled) log("Supplicant connection established"); 4100 4101 mSupplicantRestartCount = 0; 4102 /* Reset the supplicant state to indicate the supplicant 4103 * state is not known at this time */ 4104 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 4105 /* Initialize data structures */ 4106 mLastBssid = null; 4107 mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 4108 mLastSignalLevel = -1; 4109 4110 mWifiInfo.setMacAddress(mWifiNative.getMacAddress()); 4111 // Attempt to migrate data out of legacy store. 4112 if (!mWifiConfigManager.migrateFromLegacyStore()) { 4113 Log.e(TAG, "Failed to migrate from legacy config store"); 4114 } 4115 initializeWpsDetails(); 4116 sendSupplicantConnectionChangedBroadcast(true); 4117 transitionTo(mSupplicantStartedState); 4118 break; 4119 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4120 if (++mSupplicantRestartCount <= SUPPLICANT_RESTART_TRIES) { 4121 loge("Failed to setup control channel, restart supplicant"); 4122 mWifiMonitor.stopAllMonitoring(); 4123 try { 4124 mClientInterface.disableSupplicant(); 4125 } catch (RemoteException e) { 4126 // The client interface is dead, there is nothing more we can do. 4127 } 4128 transitionTo(mInitialState); 4129 sendMessageDelayed(CMD_START_SUPPLICANT, SUPPLICANT_RESTART_INTERVAL_MSECS); 4130 } else { 4131 loge("Failed " + mSupplicantRestartCount + 4132 " times to start supplicant, unload driver"); 4133 mSupplicantRestartCount = 0; 4134 setWifiState(WIFI_STATE_UNKNOWN); 4135 transitionTo(mInitialState); 4136 } 4137 break; 4138 case CMD_START_SUPPLICANT: 4139 case CMD_STOP_SUPPLICANT: 4140 case CMD_START_AP: 4141 case CMD_STOP_AP: 4142 case CMD_SET_OPERATIONAL_MODE: 4143 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 4144 deferMessage(message); 4145 break; 4146 default: 4147 return NOT_HANDLED; 4148 } 4149 return HANDLED; 4150 } 4151 } 4152 4153 class SupplicantStartedState extends State { 4154 @Override 4155 public void enter() { 4156 if (mVerboseLoggingEnabled) { 4157 logd("SupplicantStartedState enter"); 4158 } 4159 4160 int defaultInterval = mContext.getResources().getInteger( 4161 R.integer.config_wifi_supplicant_scan_interval); 4162 4163 mSupplicantScanIntervalMs = mFacade.getLongSetting(mContext, 4164 Settings.Global.WIFI_SUPPLICANT_SCAN_INTERVAL_MS, 4165 defaultInterval); 4166 4167 mWifiNative.setScanInterval((int)mSupplicantScanIntervalMs / 1000); 4168 mWifiNative.setExternalSim(true); 4169 4170 /* turn on use of DFS channels */ 4171 mWifiNative.setDfsFlag(true); 4172 4173 setRandomMacOui(); 4174 mWifiNative.enableAutoConnect(false); 4175 mCountryCode.setReadyForChange(true); 4176 4177 // We can't do this in the constructor because WifiStateMachine is created before the 4178 // wifi scanning service is initialized 4179 if (mWifiScanner == null) { 4180 mWifiScanner = mWifiInjector.getWifiScanner(); 4181 4182 synchronized (mWifiReqCountLock) { 4183 mWifiConnectivityManager = 4184 mWifiInjector.makeWifiConnectivityManager(mWifiInfo, 4185 hasConnectionRequests()); 4186 mWifiConnectivityManager.setUntrustedConnectionAllowed(mUntrustedReqCount > 0); 4187 mWifiConnectivityManager.handleScreenStateChanged(mScreenOn); 4188 } 4189 } 4190 4191 mWifiDiagnostics.startLogging(mVerboseLoggingEnabled); 4192 mIsRunning = true; 4193 updateBatteryWorkSource(null); 4194 /** 4195 * Enable bluetooth coexistence scan mode when bluetooth connection is active. 4196 * When this mode is on, some of the low-level scan parameters used by the 4197 * driver are changed to reduce interference with bluetooth 4198 */ 4199 mWifiNative.setBluetoothCoexistenceScanMode(mBluetoothConnectionActive); 4200 // initialize network state 4201 setNetworkDetailedState(DetailedState.DISCONNECTED); 4202 4203 // Disable legacy multicast filtering, which on some chipsets defaults to enabled. 4204 // Legacy IPv6 multicast filtering blocks ICMPv6 router advertisements which breaks IPv6 4205 // provisioning. Legacy IPv4 multicast filtering may be re-enabled later via 4206 // IpManager.Callback.setFallbackMulticastFilter() 4207 mWifiNative.stopFilteringMulticastV4Packets(); 4208 mWifiNative.stopFilteringMulticastV6Packets(); 4209 4210 if (mOperationalMode == SCAN_ONLY_MODE || 4211 mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 4212 mWifiNative.disconnect(); 4213 if (mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 4214 setWifiState(WIFI_STATE_DISABLED); 4215 } 4216 transitionTo(mScanModeState); 4217 } else if (mOperationalMode == CONNECT_MODE){ 4218 4219 // Status pulls in the current supplicant state and network connection state 4220 // events over the monitor connection. This helps framework sync up with 4221 // current supplicant state 4222 // TODO: actually check the supplicant status string and make sure the supplicant 4223 // is in disconnecte4d state. 4224 mWifiNative.status(); 4225 // Transitioning to Disconnected state will trigger a scan and subsequently AutoJoin 4226 transitionTo(mDisconnectedState); 4227 } else if (mOperationalMode == DISABLED_MODE) { 4228 transitionTo(mSupplicantStoppingState); 4229 } 4230 4231 // Set the right suspend mode settings 4232 mWifiNative.setSuspendOptimizations(mSuspendOptNeedsDisabled == 0 4233 && mUserWantsSuspendOpt.get()); 4234 4235 mWifiNative.setPowerSave(true); 4236 4237 if (mP2pSupported) { 4238 if (mOperationalMode == CONNECT_MODE) { 4239 p2pSendMessage(WifiStateMachine.CMD_ENABLE_P2P); 4240 } else { 4241 // P2P state machine starts in disabled state, and is not enabled until 4242 // CMD_ENABLE_P2P is sent from here; so, nothing needs to be done to 4243 // keep it disabled. 4244 } 4245 } 4246 4247 if (mAwareSupported) { 4248 if (mWifiAwareManager == null) { 4249 mWifiAwareManager = mContext.getSystemService(WifiAwareManager.class); 4250 } 4251 if (mWifiAwareManager == null) { 4252 Log.e(TAG, "Can't get WifiAwareManager to enable usage!"); 4253 } else { 4254 if (mOperationalMode == CONNECT_MODE) { 4255 mWifiAwareManager.enableUsage(); 4256 } else { 4257 /* 4258 * Aware state machine starts in disabled state. Nothing 4259 * needed to keep it disabled. 4260 */ 4261 } 4262 } 4263 } 4264 4265 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 4266 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 4267 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_ENABLED); 4268 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 4269 4270 // Enable link layer stats gathering 4271 mWifiNative.setWifiLinkLayerStats("wlan0", 1); 4272 } 4273 4274 @Override 4275 public boolean processMessage(Message message) { 4276 logStateAndMessage(message, this); 4277 4278 switch(message.what) { 4279 case CMD_STOP_SUPPLICANT: /* Supplicant stopped by user */ 4280 if (mP2pSupported) { 4281 transitionTo(mWaitForP2pDisableState); 4282 } else { 4283 transitionTo(mSupplicantStoppingState); 4284 } 4285 break; 4286 case WifiMonitor.SUP_DISCONNECTION_EVENT: /* Supplicant connection lost */ 4287 loge("Connection lost, restart supplicant"); 4288 handleSupplicantConnectionLoss(true); 4289 handleNetworkDisconnect(); 4290 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 4291 if (mP2pSupported) { 4292 transitionTo(mWaitForP2pDisableState); 4293 } else { 4294 transitionTo(mInitialState); 4295 } 4296 sendMessageDelayed(CMD_START_SUPPLICANT, SUPPLICANT_RESTART_INTERVAL_MSECS); 4297 break; 4298 case CMD_START_SCAN: 4299 // TODO: remove scan request path (b/31445200) 4300 handleScanRequest(message); 4301 break; 4302 case WifiMonitor.SCAN_RESULTS_EVENT: 4303 case WifiMonitor.SCAN_FAILED_EVENT: 4304 // TODO: remove handing of SCAN_RESULTS_EVENT and SCAN_FAILED_EVENT when scan 4305 // results are retrieved from WifiScanner (b/31444878) 4306 maybeRegisterNetworkFactory(); // Make sure our NetworkFactory is registered 4307 setScanResults(); 4308 mIsScanOngoing = false; 4309 mIsFullScanOngoing = false; 4310 if (mBufferedScanMsg.size() > 0) 4311 sendMessage(mBufferedScanMsg.remove()); 4312 break; 4313 case CMD_PING_SUPPLICANT: 4314 boolean ok = mWifiNative.ping(); 4315 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 4316 break; 4317 case CMD_START_AP: 4318 /* Cannot start soft AP while in client mode */ 4319 loge("Failed to start soft AP with a running supplicant"); 4320 setWifiApState(WIFI_AP_STATE_FAILED, WifiManager.SAP_START_FAILURE_GENERAL); 4321 break; 4322 case CMD_SET_OPERATIONAL_MODE: 4323 mOperationalMode = message.arg1; 4324 if (mOperationalMode == DISABLED_MODE) { 4325 transitionTo(mSupplicantStoppingState); 4326 } 4327 break; 4328 case CMD_TARGET_BSSID: 4329 // Trying to associate to this BSSID 4330 if (message.obj != null) { 4331 mTargetRoamBSSID = (String) message.obj; 4332 } 4333 break; 4334 case CMD_GET_LINK_LAYER_STATS: 4335 WifiLinkLayerStats stats = getWifiLinkLayerStats(); 4336 replyToMessage(message, message.what, stats); 4337 break; 4338 case CMD_RESET_SIM_NETWORKS: 4339 log("resetting EAP-SIM/AKA/AKA' networks since SIM was changed"); 4340 mWifiConfigManager.resetSimNetworks(); 4341 break; 4342 case CMD_BLUETOOTH_ADAPTER_STATE_CHANGE: 4343 mBluetoothConnectionActive = (message.arg1 != 4344 BluetoothAdapter.STATE_DISCONNECTED); 4345 mWifiNative.setBluetoothCoexistenceScanMode(mBluetoothConnectionActive); 4346 break; 4347 case CMD_SET_SUSPEND_OPT_ENABLED: 4348 if (message.arg1 == 1) { 4349 setSuspendOptimizationsNative(SUSPEND_DUE_TO_SCREEN, true); 4350 if (message.arg2 == 1) { 4351 mSuspendWakeLock.release(); 4352 } 4353 } else { 4354 setSuspendOptimizationsNative(SUSPEND_DUE_TO_SCREEN, false); 4355 } 4356 break; 4357 case CMD_SET_HIGH_PERF_MODE: 4358 if (message.arg1 == 1) { 4359 setSuspendOptimizationsNative(SUSPEND_DUE_TO_HIGH_PERF, false); 4360 } else { 4361 setSuspendOptimizationsNative(SUSPEND_DUE_TO_HIGH_PERF, true); 4362 } 4363 break; 4364 case CMD_ENABLE_TDLS: 4365 if (message.obj != null) { 4366 String remoteAddress = (String) message.obj; 4367 boolean enable = (message.arg1 == 1); 4368 mWifiNative.startTdls(remoteAddress, enable); 4369 } 4370 break; 4371 case WifiMonitor.ANQP_DONE_EVENT: 4372 // TODO(zqiu): remove this when switch over to wificond for ANQP requests. 4373 mPasspointManager.notifyANQPDone((long) message.obj, message.arg1 != 0); 4374 break; 4375 case CMD_STOP_IP_PACKET_OFFLOAD: { 4376 int slot = message.arg1; 4377 int ret = stopWifiIPPacketOffload(slot); 4378 if (mNetworkAgent != null) { 4379 mNetworkAgent.onPacketKeepaliveEvent(slot, ret); 4380 } 4381 break; 4382 } 4383 case WifiMonitor.RX_HS20_ANQP_ICON_EVENT: 4384 // TODO(zqiu): remove this when switch over to wificond for icon requests. 4385 IconEvent event = (IconEvent) message.obj; 4386 mPasspointManager.notifyIconDone(event.getBSSID(), event); 4387 break; 4388 case WifiMonitor.HS20_REMEDIATION_EVENT: 4389 // TODO(zqiu): remove this when switch over to wificond for WNM frames 4390 // monitoring. 4391 mPasspointManager.receivedWnmFrame((WnmData) message.obj); 4392 break; 4393 case CMD_CONFIG_ND_OFFLOAD: 4394 final boolean enabled = (message.arg1 > 0); 4395 mWifiNative.configureNeighborDiscoveryOffload(enabled); 4396 break; 4397 case CMD_ENABLE_WIFI_CONNECTIVITY_MANAGER: 4398 mWifiConnectivityManager.enable(message.arg1 == 1 ? true : false); 4399 break; 4400 case CMD_ENABLE_AUTOJOIN_WHEN_ASSOCIATED: 4401 final boolean allowed = (message.arg1 > 0); 4402 boolean old_state = mEnableAutoJoinWhenAssociated; 4403 mEnableAutoJoinWhenAssociated = allowed; 4404 if (!old_state && allowed && mScreenOn 4405 && getCurrentState() == mConnectedState) { 4406 mWifiConnectivityManager.forceConnectivityScan(); 4407 } 4408 break; 4409 default: 4410 return NOT_HANDLED; 4411 } 4412 return HANDLED; 4413 } 4414 4415 @Override 4416 public void exit() { 4417 mWifiDiagnostics.stopLogging(); 4418 4419 mIsRunning = false; 4420 updateBatteryWorkSource(null); 4421 mScanResults = new ArrayList<>(); 4422 4423 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 4424 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 4425 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_DISABLED); 4426 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 4427 mBufferedScanMsg.clear(); 4428 4429 if (mAwareSupported) { 4430 if (mWifiAwareManager == null) { 4431 mWifiAwareManager = mContext.getSystemService(WifiAwareManager.class); 4432 } 4433 if (mWifiAwareManager == null) { 4434 Log.e(TAG, "Can't get WifiAwareManager (to disable usage)!"); 4435 } else { 4436 mWifiAwareManager.disableUsage(); 4437 } 4438 } 4439 4440 mNetworkInfo.setIsAvailable(false); 4441 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4442 mCountryCode.setReadyForChange(false); 4443 } 4444 } 4445 4446 class SupplicantStoppingState extends State { 4447 @Override 4448 public void enter() { 4449 /* Send any reset commands to supplicant before shutting it down */ 4450 handleNetworkDisconnect(); 4451 4452 String suppState = System.getProperty("init.svc.wpa_supplicant"); 4453 if (suppState == null) suppState = "unknown"; 4454 4455 logd("SupplicantStoppingState: stopSupplicant " 4456 + " init.svc.wpa_supplicant=" + suppState); 4457 mWifiMonitor.stopSupplicant(); 4458 4459 /* Send ourselves a delayed message to indicate failure after a wait time */ 4460 sendMessageDelayed(obtainMessage(CMD_STOP_SUPPLICANT_FAILED, 4461 ++mSupplicantStopFailureToken, 0), SUPPLICANT_RESTART_INTERVAL_MSECS); 4462 setWifiState(WIFI_STATE_DISABLING); 4463 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 4464 } 4465 @Override 4466 public boolean processMessage(Message message) { 4467 logStateAndMessage(message, this); 4468 4469 switch(message.what) { 4470 case WifiMonitor.SUP_CONNECTION_EVENT: 4471 loge("Supplicant connection received while stopping"); 4472 break; 4473 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4474 if (mVerboseLoggingEnabled) log("Supplicant connection lost"); 4475 handleSupplicantConnectionLoss(false); 4476 transitionTo(mInitialState); 4477 break; 4478 case CMD_STOP_SUPPLICANT_FAILED: 4479 if (message.arg1 == mSupplicantStopFailureToken) { 4480 loge("Timed out on a supplicant stop, kill and proceed"); 4481 handleSupplicantConnectionLoss(true); 4482 transitionTo(mInitialState); 4483 } 4484 break; 4485 case CMD_START_SUPPLICANT: 4486 case CMD_STOP_SUPPLICANT: 4487 case CMD_START_AP: 4488 case CMD_STOP_AP: 4489 case CMD_SET_OPERATIONAL_MODE: 4490 deferMessage(message); 4491 break; 4492 default: 4493 return NOT_HANDLED; 4494 } 4495 return HANDLED; 4496 } 4497 } 4498 4499 class WaitForP2pDisableState extends State { 4500 private State mTransitionToState; 4501 @Override 4502 public void enter() { 4503 switch (getCurrentMessage().what) { 4504 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4505 mTransitionToState = mInitialState; 4506 break; 4507 case CMD_STOP_SUPPLICANT: 4508 default: 4509 mTransitionToState = mSupplicantStoppingState; 4510 break; 4511 } 4512 p2pSendMessage(WifiStateMachine.CMD_DISABLE_P2P_REQ); 4513 } 4514 @Override 4515 public boolean processMessage(Message message) { 4516 logStateAndMessage(message, this); 4517 4518 switch(message.what) { 4519 case WifiStateMachine.CMD_DISABLE_P2P_RSP: 4520 transitionTo(mTransitionToState); 4521 break; 4522 /* Defer wifi start/shut and driver commands */ 4523 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4524 case CMD_START_SUPPLICANT: 4525 case CMD_STOP_SUPPLICANT: 4526 case CMD_START_AP: 4527 case CMD_STOP_AP: 4528 case CMD_SET_OPERATIONAL_MODE: 4529 case CMD_START_SCAN: 4530 case CMD_DISCONNECT: 4531 case CMD_REASSOCIATE: 4532 case CMD_RECONNECT: 4533 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 4534 deferMessage(message); 4535 break; 4536 default: 4537 return NOT_HANDLED; 4538 } 4539 return HANDLED; 4540 } 4541 } 4542 4543 class ScanModeState extends State { 4544 private int mLastOperationMode; 4545 @Override 4546 public void enter() { 4547 mLastOperationMode = mOperationalMode; 4548 } 4549 @Override 4550 public boolean processMessage(Message message) { 4551 logStateAndMessage(message, this); 4552 4553 switch(message.what) { 4554 case CMD_SET_OPERATIONAL_MODE: 4555 if (message.arg1 == CONNECT_MODE) { 4556 if (mLastOperationMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 4557 setWifiState(WIFI_STATE_ENABLED); 4558 // Load and re-enable networks when going back to enabled state 4559 // This is essential for networks to show up after restore 4560 mWifiConfigManager.loadFromStore(); 4561 p2pSendMessage(CMD_ENABLE_P2P); 4562 } 4563 mOperationalMode = CONNECT_MODE; 4564 transitionTo(mDisconnectedState); 4565 } else if (message.arg1 == DISABLED_MODE) { 4566 transitionTo(mSupplicantStoppingState); 4567 } 4568 // Nothing to do 4569 break; 4570 // Handle scan. All the connection related commands are 4571 // handled only in ConnectModeState 4572 case CMD_START_SCAN: 4573 handleScanRequest(message); 4574 break; 4575 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4576 SupplicantState state = handleSupplicantStateChange(message); 4577 if (mVerboseLoggingEnabled) log("SupplicantState= " + state); 4578 break; 4579 default: 4580 return NOT_HANDLED; 4581 } 4582 return HANDLED; 4583 } 4584 } 4585 4586 4587 String smToString(Message message) { 4588 return smToString(message.what); 4589 } 4590 4591 String smToString(int what) { 4592 String s = sSmToString.get(what); 4593 if (s != null) { 4594 return s; 4595 } 4596 switch (what) { 4597 case WifiMonitor.DRIVER_HUNG_EVENT: 4598 s = "DRIVER_HUNG_EVENT"; 4599 break; 4600 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: 4601 s = "AsyncChannel.CMD_CHANNEL_HALF_CONNECTED"; 4602 break; 4603 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: 4604 s = "AsyncChannel.CMD_CHANNEL_DISCONNECTED"; 4605 break; 4606 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 4607 s = "WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST"; 4608 break; 4609 case WifiManager.DISABLE_NETWORK: 4610 s = "WifiManager.DISABLE_NETWORK"; 4611 break; 4612 case WifiManager.CONNECT_NETWORK: 4613 s = "CONNECT_NETWORK"; 4614 break; 4615 case WifiManager.SAVE_NETWORK: 4616 s = "SAVE_NETWORK"; 4617 break; 4618 case WifiManager.FORGET_NETWORK: 4619 s = "FORGET_NETWORK"; 4620 break; 4621 case WifiMonitor.SUP_CONNECTION_EVENT: 4622 s = "SUP_CONNECTION_EVENT"; 4623 break; 4624 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4625 s = "SUP_DISCONNECTION_EVENT"; 4626 break; 4627 case WifiMonitor.SCAN_RESULTS_EVENT: 4628 s = "SCAN_RESULTS_EVENT"; 4629 break; 4630 case WifiMonitor.SCAN_FAILED_EVENT: 4631 s = "SCAN_FAILED_EVENT"; 4632 break; 4633 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4634 s = "SUPPLICANT_STATE_CHANGE_EVENT"; 4635 break; 4636 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 4637 s = "AUTHENTICATION_FAILURE_EVENT"; 4638 break; 4639 case WifiMonitor.SSID_TEMP_DISABLED: 4640 s = "SSID_TEMP_DISABLED"; 4641 break; 4642 case WifiMonitor.SSID_REENABLED: 4643 s = "SSID_REENABLED"; 4644 break; 4645 case WifiMonitor.WPS_SUCCESS_EVENT: 4646 s = "WPS_SUCCESS_EVENT"; 4647 break; 4648 case WifiMonitor.WPS_FAIL_EVENT: 4649 s = "WPS_FAIL_EVENT"; 4650 break; 4651 case WifiMonitor.SUP_REQUEST_IDENTITY: 4652 s = "SUP_REQUEST_IDENTITY"; 4653 break; 4654 case WifiMonitor.NETWORK_CONNECTION_EVENT: 4655 s = "NETWORK_CONNECTION_EVENT"; 4656 break; 4657 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 4658 s = "NETWORK_DISCONNECTION_EVENT"; 4659 break; 4660 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 4661 s = "ASSOCIATION_REJECTION_EVENT"; 4662 break; 4663 case WifiMonitor.ANQP_DONE_EVENT: 4664 s = "WifiMonitor.ANQP_DONE_EVENT"; 4665 break; 4666 case WifiMonitor.RX_HS20_ANQP_ICON_EVENT: 4667 s = "WifiMonitor.RX_HS20_ANQP_ICON_EVENT"; 4668 break; 4669 case WifiMonitor.GAS_QUERY_DONE_EVENT: 4670 s = "WifiMonitor.GAS_QUERY_DONE_EVENT"; 4671 break; 4672 case WifiMonitor.HS20_REMEDIATION_EVENT: 4673 s = "WifiMonitor.HS20_REMEDIATION_EVENT"; 4674 break; 4675 case WifiMonitor.GAS_QUERY_START_EVENT: 4676 s = "WifiMonitor.GAS_QUERY_START_EVENT"; 4677 break; 4678 case WifiP2pServiceImpl.GROUP_CREATING_TIMED_OUT: 4679 s = "GROUP_CREATING_TIMED_OUT"; 4680 break; 4681 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 4682 s = "P2P_CONNECTION_CHANGED"; 4683 break; 4684 case WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE: 4685 s = "P2P.DISCONNECT_WIFI_RESPONSE"; 4686 break; 4687 case WifiP2pServiceImpl.SET_MIRACAST_MODE: 4688 s = "P2P.SET_MIRACAST_MODE"; 4689 break; 4690 case WifiP2pServiceImpl.BLOCK_DISCOVERY: 4691 s = "P2P.BLOCK_DISCOVERY"; 4692 break; 4693 case WifiManager.CANCEL_WPS: 4694 s = "CANCEL_WPS"; 4695 break; 4696 case WifiManager.CANCEL_WPS_FAILED: 4697 s = "CANCEL_WPS_FAILED"; 4698 break; 4699 case WifiManager.CANCEL_WPS_SUCCEDED: 4700 s = "CANCEL_WPS_SUCCEDED"; 4701 break; 4702 case WifiManager.START_WPS: 4703 s = "START_WPS"; 4704 break; 4705 case WifiManager.START_WPS_SUCCEEDED: 4706 s = "START_WPS_SUCCEEDED"; 4707 break; 4708 case WifiManager.WPS_FAILED: 4709 s = "WPS_FAILED"; 4710 break; 4711 case WifiManager.WPS_COMPLETED: 4712 s = "WPS_COMPLETED"; 4713 break; 4714 case WifiManager.RSSI_PKTCNT_FETCH: 4715 s = "RSSI_PKTCNT_FETCH"; 4716 break; 4717 default: 4718 s = "what:" + Integer.toString(what); 4719 break; 4720 } 4721 return s; 4722 } 4723 4724 void registerConnected() { 4725 if (mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 4726 mWifiConfigManager.updateNetworkAfterConnect(mLastNetworkId); 4727 // On connect, reset wifiScoreReport 4728 mWifiScoreReport.reset(); 4729 } 4730 } 4731 4732 void registerDisconnected() { 4733 if (mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 4734 mWifiConfigManager.updateNetworkAfterDisconnect(mLastNetworkId); 4735 // We are switching away from this configuration, 4736 // hence record the time we were connected last 4737 WifiConfiguration config = mWifiConfigManager.getConfiguredNetwork(mLastNetworkId); 4738 if (config != null) { 4739 // Remove WifiConfiguration for ephemeral or Passpoint networks, since they're 4740 // temporary networks. 4741 if (config.ephemeral || config.isPasspoint()) { 4742 mWifiConfigManager.removeNetwork(mLastNetworkId, Process.WIFI_UID); 4743 } 4744 } 4745 } 4746 } 4747 4748 /** 4749 * Returns Wificonfiguration object correponding to the currently connected network, null if 4750 * not connected. 4751 */ 4752 public WifiConfiguration getCurrentWifiConfiguration() { 4753 if (mLastNetworkId == WifiConfiguration.INVALID_NETWORK_ID) { 4754 return null; 4755 } 4756 return mWifiConfigManager.getConfiguredNetwork(mLastNetworkId); 4757 } 4758 4759 ScanResult getCurrentScanResult() { 4760 WifiConfiguration config = getCurrentWifiConfiguration(); 4761 if (config == null) { 4762 return null; 4763 } 4764 String BSSID = mWifiInfo.getBSSID(); 4765 if (BSSID == null) { 4766 BSSID = mTargetRoamBSSID; 4767 } 4768 ScanDetailCache scanDetailCache = 4769 mWifiConfigManager.getScanDetailCacheForNetwork(config.networkId); 4770 4771 if (scanDetailCache == null) { 4772 return null; 4773 } 4774 4775 return scanDetailCache.get(BSSID); 4776 } 4777 4778 String getCurrentBSSID() { 4779 if (isLinkDebouncing()) { 4780 return null; 4781 } 4782 return mLastBssid; 4783 } 4784 4785 class ConnectModeState extends State { 4786 4787 @Override 4788 public void enter() { 4789 // Let the system know that wifi is available in client mode. 4790 setWifiState(WIFI_STATE_ENABLED); 4791 4792 mNetworkInfo.setIsAvailable(true); 4793 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4794 4795 // initialize network state 4796 setNetworkDetailedState(DetailedState.DISCONNECTED); 4797 4798 4799 // Inform WifiConnectivityManager that Wifi is enabled 4800 mWifiConnectivityManager.setWifiEnabled(true); 4801 // Inform metrics that Wifi is Enabled (but not yet connected) 4802 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_DISCONNECTED); 4803 } 4804 4805 @Override 4806 public void exit() { 4807 // Let the system know that wifi is not available since we are exiting client mode. 4808 mNetworkInfo.setIsAvailable(false); 4809 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4810 // Inform WifiConnectivityManager that Wifi is disabled 4811 mWifiConnectivityManager.setWifiEnabled(false); 4812 // Inform metrics that Wifi is being disabled (Toggled, airplane enabled, etc) 4813 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_DISABLED); 4814 } 4815 4816 @Override 4817 public boolean processMessage(Message message) { 4818 WifiConfiguration config; 4819 int netId; 4820 boolean ok; 4821 boolean didDisconnect; 4822 String bssid; 4823 String ssid; 4824 NetworkUpdateResult result; 4825 Set<Integer> removedNetworkIds; 4826 int reasonCode; 4827 logStateAndMessage(message, this); 4828 4829 switch (message.what) { 4830 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 4831 mWifiDiagnostics.captureBugReportData( 4832 WifiDiagnostics.REPORT_REASON_ASSOC_FAILURE); 4833 didBlackListBSSID = false; 4834 bssid = (String) message.obj; 4835 reasonCode = message.arg2; 4836 if (bssid == null || TextUtils.isEmpty(bssid)) { 4837 // If BSSID is null, use the target roam BSSID 4838 bssid = mTargetRoamBSSID; 4839 } 4840 if (bssid != null) { 4841 // If we have a BSSID, tell configStore to black list it 4842 didBlackListBSSID = mWifiConnectivityManager.trackBssid(bssid, false, 4843 reasonCode); 4844 } 4845 mWifiConfigManager.updateNetworkSelectionStatus(mTargetNetworkId, 4846 WifiConfiguration.NetworkSelectionStatus 4847 .DISABLED_ASSOCIATION_REJECTION); 4848 mSupplicantStateTracker.sendMessage(WifiMonitor.ASSOCIATION_REJECTION_EVENT); 4849 //If rejection occurred while Metrics is tracking a ConnnectionEvent, end it. 4850 reportConnectionAttemptEnd( 4851 WifiMetrics.ConnectionEvent.FAILURE_ASSOCIATION_REJECTION, 4852 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4853 mWifiInjector.getWifiLastResortWatchdog() 4854 .noteConnectionFailureAndTriggerIfNeeded( 4855 getTargetSsid(), bssid, 4856 WifiLastResortWatchdog.FAILURE_CODE_ASSOCIATION); 4857 break; 4858 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 4859 mWifiDiagnostics.captureBugReportData( 4860 WifiDiagnostics.REPORT_REASON_AUTH_FAILURE); 4861 mSupplicantStateTracker.sendMessage(WifiMonitor.AUTHENTICATION_FAILURE_EVENT); 4862 if (mTargetNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 4863 mWifiConfigManager.updateNetworkSelectionStatus(mTargetNetworkId, 4864 WifiConfiguration.NetworkSelectionStatus 4865 .DISABLED_AUTHENTICATION_FAILURE); 4866 } 4867 //If failure occurred while Metrics is tracking a ConnnectionEvent, end it. 4868 reportConnectionAttemptEnd( 4869 WifiMetrics.ConnectionEvent.FAILURE_AUTHENTICATION_FAILURE, 4870 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4871 mWifiInjector.getWifiLastResortWatchdog() 4872 .noteConnectionFailureAndTriggerIfNeeded( 4873 getTargetSsid(), mTargetRoamBSSID, 4874 WifiLastResortWatchdog.FAILURE_CODE_AUTHENTICATION); 4875 break; 4876 case WifiMonitor.SSID_TEMP_DISABLED: 4877 netId = lookupFrameworkNetworkId(message.arg1); 4878 Log.e(TAG, "Supplicant SSID temporary disabled:" 4879 + mWifiConfigManager.getConfiguredNetwork(netId)); 4880 mWifiConfigManager.updateNetworkSelectionStatus( 4881 netId, 4882 WifiConfiguration.NetworkSelectionStatus 4883 .DISABLED_AUTHENTICATION_FAILURE); 4884 reportConnectionAttemptEnd( 4885 WifiMetrics.ConnectionEvent.FAILURE_SSID_TEMP_DISABLED, 4886 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4887 mWifiInjector.getWifiLastResortWatchdog() 4888 .noteConnectionFailureAndTriggerIfNeeded( 4889 getTargetSsid(), mTargetRoamBSSID, 4890 WifiLastResortWatchdog.FAILURE_CODE_AUTHENTICATION); 4891 break; 4892 case WifiMonitor.SSID_REENABLED: 4893 netId = lookupFrameworkNetworkId(message.arg1); 4894 Log.d(TAG, "Supplicant SSID reenable:" 4895 + mWifiConfigManager.getConfiguredNetwork(netId)); 4896 // Do not re-enable it in Quality Network Selection since framework has its own 4897 // Algorithm of disable/enable 4898 break; 4899 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4900 SupplicantState state = handleSupplicantStateChange(message); 4901 // A driver/firmware hang can now put the interface in a down state. 4902 // We detect the interface going down and recover from it 4903 if (!SupplicantState.isDriverActive(state)) { 4904 if (mNetworkInfo.getState() != NetworkInfo.State.DISCONNECTED) { 4905 handleNetworkDisconnect(); 4906 } 4907 log("Detected an interface down, restart driver"); 4908 // Rely on the fact that this will force us into killing supplicant and then 4909 // restart supplicant from a clean state. 4910 transitionTo(mSupplicantStoppingState); 4911 sendMessage(CMD_START_SUPPLICANT); 4912 break; 4913 } 4914 4915 // Supplicant can fail to report a NETWORK_DISCONNECTION_EVENT 4916 // when authentication times out after a successful connection, 4917 // we can figure this from the supplicant state. If supplicant 4918 // state is DISCONNECTED, but the mNetworkInfo says we are not 4919 // disconnected, we need to handle a disconnection 4920 if (!isLinkDebouncing() && state == SupplicantState.DISCONNECTED && 4921 mNetworkInfo.getState() != NetworkInfo.State.DISCONNECTED) { 4922 if (mVerboseLoggingEnabled) { 4923 log("Missed CTRL-EVENT-DISCONNECTED, disconnect"); 4924 } 4925 handleNetworkDisconnect(); 4926 transitionTo(mDisconnectedState); 4927 } 4928 4929 // If we have COMPLETED a connection to a BSSID, start doing 4930 // DNAv4/DNAv6 -style probing for on-link neighbors of 4931 // interest (e.g. routers); harmless if none are configured. 4932 if (state == SupplicantState.COMPLETED) { 4933 mIpManager.confirmConfiguration(); 4934 } 4935 break; 4936 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 4937 if (message.arg1 == 1) { 4938 mWifiNative.disconnect(); 4939 mTemporarilyDisconnectWifi = true; 4940 } else { 4941 mWifiNative.reconnect(); 4942 mTemporarilyDisconnectWifi = false; 4943 } 4944 break; 4945 case CMD_ADD_OR_UPDATE_NETWORK: 4946 config = (WifiConfiguration) message.obj; 4947 result = mWifiConfigManager.addOrUpdateNetwork(config, message.sendingUid); 4948 if (!result.isSuccess()) { 4949 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4950 } 4951 replyToMessage(message, message.what, result.getNetworkId()); 4952 break; 4953 case CMD_REMOVE_NETWORK: 4954 netId = message.arg1; 4955 ok = mWifiConfigManager.removeNetwork(message.arg1, message.sendingUid); 4956 if (!ok) { 4957 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4958 } else if (netId == mTargetNetworkId || netId == mLastNetworkId) { 4959 // Disconnect and let autojoin reselect a new network 4960 sendMessage(CMD_DISCONNECT); 4961 } 4962 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 4963 break; 4964 case CMD_ENABLE_NETWORK: 4965 boolean disableOthers = message.arg2 == 1; 4966 netId = message.arg1; 4967 if (disableOthers) { 4968 // If the app has all the necessary permissions, this will trigger a connect 4969 // attempt. 4970 ok = connectToUserSelectNetwork(netId, message.sendingUid); 4971 } else { 4972 ok = mWifiConfigManager.enableNetwork(netId, false, message.sendingUid); 4973 } 4974 if (!ok) { 4975 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4976 } 4977 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 4978 break; 4979 case WifiManager.DISABLE_NETWORK: 4980 netId = message.arg1; 4981 if (mWifiConfigManager.disableNetwork(netId, message.sendingUid)) { 4982 replyToMessage(message, WifiManager.DISABLE_NETWORK_SUCCEEDED); 4983 if (netId == mTargetNetworkId || netId == mLastNetworkId) { 4984 // Disconnect and let autojoin reselect a new network 4985 sendMessage(CMD_DISCONNECT); 4986 } 4987 } else { 4988 loge("Failed to remove network"); 4989 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4990 replyToMessage(message, WifiManager.DISABLE_NETWORK_FAILED, 4991 WifiManager.ERROR); 4992 } 4993 break; 4994 case CMD_DISABLE_EPHEMERAL_NETWORK: 4995 config = mWifiConfigManager.disableEphemeralNetwork((String)message.obj); 4996 if (config != null) { 4997 if (config.networkId == mTargetNetworkId 4998 || config.networkId == mLastNetworkId) { 4999 // Disconnect and let autojoin reselect a new network 5000 sendMessage(CMD_DISCONNECT); 5001 } 5002 } 5003 break; 5004 case CMD_SAVE_CONFIG: 5005 ok = mWifiConfigManager.saveToStore(true); 5006 replyToMessage(message, CMD_SAVE_CONFIG, ok ? SUCCESS : FAILURE); 5007 // Inform the backup manager about a data change 5008 mBackupManagerProxy.notifyDataChanged(); 5009 break; 5010 case CMD_GET_CONFIGURED_NETWORKS: 5011 replyToMessage(message, message.what, 5012 mWifiConfigManager.getSavedNetworks()); 5013 break; 5014 case WifiMonitor.SUP_REQUEST_IDENTITY: 5015 int supplicantNetworkId = message.arg2; 5016 netId = lookupFrameworkNetworkId(supplicantNetworkId); 5017 boolean identitySent = false; 5018 int eapMethod = WifiEnterpriseConfig.Eap.NONE; 5019 if (targetWificonfiguration != null 5020 && targetWificonfiguration.enterpriseConfig != null) { 5021 eapMethod = targetWificonfiguration.enterpriseConfig.getEapMethod(); 5022 } 5023 // For SIM & AKA/AKA' EAP method Only, get identity from ICC 5024 if (targetWificonfiguration != null 5025 && targetWificonfiguration.networkId == netId 5026 && (targetWificonfiguration.allowedKeyManagement 5027 .get(WifiConfiguration.KeyMgmt.WPA_EAP) 5028 || targetWificonfiguration.allowedKeyManagement 5029 .get(WifiConfiguration.KeyMgmt.IEEE8021X)) 5030 && TelephonyUtil.isSimEapMethod(eapMethod)) { 5031 String identity = 5032 TelephonyUtil.getSimIdentity(getTelephonyManager(), eapMethod); 5033 if (identity != null) { 5034 mWifiNative.simIdentityResponse(supplicantNetworkId, identity); 5035 identitySent = true; 5036 } 5037 } 5038 if (!identitySent) { 5039 // Supplicant lacks credentials to connect to that network, hence black list 5040 ssid = (String) message.obj; 5041 if (targetWificonfiguration != null && ssid != null 5042 && targetWificonfiguration.SSID != null 5043 && targetWificonfiguration.SSID.equals("\"" + ssid + "\"")) { 5044 mWifiConfigManager.updateNetworkSelectionStatus( 5045 targetWificonfiguration.networkId, 5046 WifiConfiguration.NetworkSelectionStatus 5047 .DISABLED_AUTHENTICATION_NO_CREDENTIALS); 5048 } 5049 mWifiNative.disconnect(); 5050 } 5051 break; 5052 case WifiMonitor.SUP_REQUEST_SIM_AUTH: 5053 logd("Received SUP_REQUEST_SIM_AUTH"); 5054 SimAuthRequestData requestData = (SimAuthRequestData) message.obj; 5055 if (requestData != null) { 5056 if (requestData.protocol == WifiEnterpriseConfig.Eap.SIM) { 5057 handleGsmAuthRequest(requestData); 5058 } else if (requestData.protocol == WifiEnterpriseConfig.Eap.AKA 5059 || requestData.protocol == WifiEnterpriseConfig.Eap.AKA_PRIME) { 5060 handle3GAuthRequest(requestData); 5061 } 5062 } else { 5063 loge("Invalid sim auth request"); 5064 } 5065 break; 5066 case CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS: 5067 replyToMessage(message, message.what, 5068 mWifiConfigManager.getConfiguredNetworksWithPasswords()); 5069 break; 5070 case CMD_GET_MATCHING_CONFIG: 5071 // TODO(b/31065385) 5072 replyToMessage(message, message.what, null); 5073 break; 5074 case CMD_RECONNECT: 5075 mWifiConnectivityManager.forceConnectivityScan(); 5076 break; 5077 case CMD_REASSOCIATE: 5078 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 5079 mWifiNative.reassociate(); 5080 break; 5081 case CMD_RELOAD_TLS_AND_RECONNECT: 5082 if (mWifiConfigManager.needsUnlockedKeyStore()) { 5083 logd("Reconnecting to give a chance to un-connected TLS networks"); 5084 mWifiNative.disconnect(); 5085 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 5086 mWifiNative.reconnect(); 5087 } 5088 break; 5089 case CMD_START_ROAM: 5090 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 5091 return HANDLED; 5092 case CMD_START_CONNECT: 5093 /* connect command coming from auto-join */ 5094 netId = message.arg1; 5095 bssid = (String) message.obj; 5096 config = mWifiConfigManager.getConfiguredNetworkWithPassword(netId); 5097 logd("CMD_START_CONNECT sup state " 5098 + mSupplicantStateTracker.getSupplicantStateName() 5099 + " my state " + getCurrentState().getName() 5100 + " nid=" + Integer.toString(netId) 5101 + " roam=" + Boolean.toString(mAutoRoaming)); 5102 if (config == null) { 5103 loge("CMD_START_CONNECT and no config, bail out..."); 5104 break; 5105 } 5106 mTargetNetworkId = netId; 5107 setTargetBssid(config, bssid); 5108 5109 reportConnectionAttemptStart(config, mTargetRoamBSSID, 5110 WifiMetricsProto.ConnectionEvent.ROAM_UNRELATED); 5111 boolean shouldDisconnect = (getCurrentState() != mDisconnectedState); 5112 if (mWifiSupplicantControl.connectToNetwork(config, shouldDisconnect)) { 5113 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 5114 targetWificonfiguration = config; 5115 mAutoRoaming = false; 5116 if (isRoaming() || isLinkDebouncing()) { 5117 transitionTo(mRoamingState); 5118 } else if (shouldDisconnect) { 5119 transitionTo(mDisconnectingState); 5120 } else { 5121 transitionTo(mDisconnectedState); 5122 } 5123 } else { 5124 loge("CMD_START_CONNECT Failed to start connection to network " + config); 5125 reportConnectionAttemptEnd( 5126 WifiMetrics.ConnectionEvent.FAILURE_CONNECT_NETWORK_FAILED, 5127 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5128 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 5129 WifiManager.ERROR); 5130 break; 5131 } 5132 break; 5133 case CMD_REMOVE_APP_CONFIGURATIONS: 5134 removedNetworkIds = 5135 mWifiConfigManager.removeNetworksForApp((ApplicationInfo) message.obj); 5136 if (removedNetworkIds.contains(mTargetNetworkId) || 5137 removedNetworkIds.contains(mLastNetworkId)) { 5138 // Disconnect and let autojoin reselect a new network. 5139 sendMessage(CMD_DISCONNECT); 5140 } 5141 break; 5142 case CMD_REMOVE_USER_CONFIGURATIONS: 5143 removedNetworkIds = 5144 mWifiConfigManager.removeNetworksForUser((Integer) message.arg1); 5145 if (removedNetworkIds.contains(mTargetNetworkId) || 5146 removedNetworkIds.contains(mLastNetworkId)) { 5147 // Disconnect and let autojoin reselect a new network. 5148 sendMessage(CMD_DISCONNECT); 5149 } 5150 break; 5151 case WifiManager.CONNECT_NETWORK: 5152 /** 5153 * The connect message can contain a network id passed as arg1 on message or 5154 * or a config passed as obj on message. 5155 * For a new network, a config is passed to create and connect. 5156 * For an existing network, a network id is passed 5157 */ 5158 netId = message.arg1; 5159 config = (WifiConfiguration) message.obj; 5160 mWifiConnectionStatistics.numWifiManagerJoinAttempt++; 5161 // New network addition. 5162 if (config != null) { 5163 result = mWifiConfigManager.addOrUpdateNetwork(config, message.sendingUid); 5164 if (!result.isSuccess()) { 5165 loge("CONNECT_NETWORK adding/updating config=" + config + " failed"); 5166 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5167 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 5168 WifiManager.ERROR); 5169 break; 5170 } 5171 netId = result.getNetworkId(); 5172 } 5173 if (!connectToUserSelectNetwork(netId, message.sendingUid)) { 5174 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5175 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 5176 WifiManager.NOT_AUTHORIZED); 5177 break; 5178 } 5179 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_SAVED, config); 5180 replyToMessage(message, WifiManager.CONNECT_NETWORK_SUCCEEDED); 5181 break; 5182 case WifiManager.SAVE_NETWORK: 5183 config = (WifiConfiguration) message.obj; 5184 mWifiConnectionStatistics.numWifiManagerJoinAttempt++; 5185 if (config == null) { 5186 loge("SAVE_NETWORK with null configuration" 5187 + mSupplicantStateTracker.getSupplicantStateName() 5188 + " my state " + getCurrentState().getName()); 5189 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5190 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5191 WifiManager.ERROR); 5192 break; 5193 } 5194 result = mWifiConfigManager.addOrUpdateNetwork(config, message.sendingUid); 5195 if (!result.isSuccess()) { 5196 loge("SAVE_NETWORK adding/updating config=" + config + " failed"); 5197 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5198 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5199 WifiManager.ERROR); 5200 break; 5201 } 5202 netId = result.getNetworkId(); 5203 if (mWifiInfo.getNetworkId() == netId) { 5204 if (result.hasIpChanged()) { 5205 // The currently connection configuration was changed 5206 // We switched from DHCP to static or from static to DHCP, or the 5207 // static IP address has changed. 5208 log("Reconfiguring IP on connection"); 5209 // TODO: clear addresses and disable IPv6 5210 // to simplify obtainingIpState. 5211 transitionTo(mObtainingIpState); 5212 } 5213 if (result.hasProxyChanged()) { 5214 log("Reconfiguring proxy on connection"); 5215 mIpManager.setHttpProxy( 5216 getCurrentWifiConfiguration().getHttpProxy()); 5217 } 5218 } else { 5219 if (!connectToUserSelectNetwork(netId, message.sendingUid)) { 5220 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5221 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5222 WifiManager.NOT_AUTHORIZED); 5223 break; 5224 } 5225 } 5226 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_SAVED, config); 5227 replyToMessage(message, WifiManager.SAVE_NETWORK_SUCCEEDED); 5228 break; 5229 case WifiManager.FORGET_NETWORK: 5230 netId = message.arg1; 5231 if (mWifiConfigManager.removeNetwork(netId, message.sendingUid)) { 5232 replyToMessage(message, WifiManager.FORGET_NETWORK_SUCCEEDED); 5233 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_FORGOT, 5234 (WifiConfiguration) message.obj); 5235 if (netId == mTargetNetworkId || netId == mLastNetworkId) { 5236 // Disconnect and let autojoin reselect a new network 5237 sendMessage(CMD_DISCONNECT); 5238 } 5239 } else { 5240 loge("Failed to forget network"); 5241 replyToMessage(message, WifiManager.FORGET_NETWORK_FAILED, 5242 WifiManager.ERROR); 5243 } 5244 break; 5245 case WifiManager.START_WPS: 5246 WpsInfo wpsInfo = (WpsInfo) message.obj; 5247 WpsResult wpsResult; 5248 switch (wpsInfo.setup) { 5249 case WpsInfo.PBC: 5250 wpsResult = mWifiSupplicantControl.startWpsPbc(wpsInfo); 5251 break; 5252 case WpsInfo.KEYPAD: 5253 wpsResult = 5254 mWifiSupplicantControl.startWpsWithPinFromAccessPoint(wpsInfo); 5255 break; 5256 case WpsInfo.DISPLAY: 5257 wpsResult = mWifiSupplicantControl.startWpsWithPinFromDevice(wpsInfo); 5258 break; 5259 default: 5260 wpsResult = new WpsResult(Status.FAILURE); 5261 loge("Invalid setup for WPS"); 5262 break; 5263 } 5264 if (wpsResult.status == Status.SUCCESS) { 5265 replyToMessage(message, WifiManager.START_WPS_SUCCEEDED, wpsResult); 5266 transitionTo(mWpsRunningState); 5267 } else { 5268 loge("Failed to start WPS with config " + wpsInfo.toString()); 5269 replyToMessage(message, WifiManager.WPS_FAILED, WifiManager.ERROR); 5270 } 5271 break; 5272 case CMD_ASSOCIATED_BSSID: 5273 // This is where we can confirm the connection BSSID. Use it to find the 5274 // right ScanDetail to populate metrics. 5275 String someBssid = (String) message.obj; 5276 if (someBssid != null) { 5277 // Get the ScanDetail associated with this BSSID. 5278 ScanDetailCache scanDetailCache = 5279 mWifiConfigManager.getScanDetailCacheForNetwork(mTargetNetworkId); 5280 if (scanDetailCache != null) { 5281 mWifiMetrics.setConnectionScanDetail(scanDetailCache.getScanDetail( 5282 someBssid)); 5283 } 5284 } 5285 return NOT_HANDLED; 5286 case WifiMonitor.NETWORK_CONNECTION_EVENT: 5287 if (mVerboseLoggingEnabled) log("Network connection established"); 5288 mLastNetworkId = lookupFrameworkNetworkId(message.arg1); 5289 mLastBssid = (String) message.obj; 5290 reasonCode = message.arg2; 5291 // TODO: This check should not be needed after WifiStateMachinePrime refactor. 5292 // Currently, the last connected network configuration is left in 5293 // wpa_supplicant, this may result in wpa_supplicant initiating connection 5294 // to it after a config store reload. Hence the old network Id lookups may not 5295 // work, so disconnect the network and let network selector reselect a new 5296 // network. 5297 if (getCurrentWifiConfiguration() != null) { 5298 mWifiInfo.setBSSID(mLastBssid); 5299 mWifiInfo.setNetworkId(mLastNetworkId); 5300 mWifiConnectivityManager.trackBssid(mLastBssid, true, reasonCode); 5301 sendNetworkStateChangeBroadcast(mLastBssid); 5302 transitionTo(mObtainingIpState); 5303 } else { 5304 logw("Connected to unknown networkId " + mLastNetworkId 5305 + ", disconnecting..."); 5306 sendMessage(CMD_DISCONNECT); 5307 } 5308 break; 5309 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 5310 // Calling handleNetworkDisconnect here is redundant because we might already 5311 // have called it when leaving L2ConnectedState to go to disconnecting state 5312 // or thru other path 5313 // We should normally check the mWifiInfo or mLastNetworkId so as to check 5314 // if they are valid, and only in this case call handleNEtworkDisconnect, 5315 // TODO: this should be fixed for a L MR release 5316 // The side effect of calling handleNetworkDisconnect twice is that a bunch of 5317 // idempotent commands are executed twice (stopping Dhcp, enabling the SPS mode 5318 // at the chip etc... 5319 if (mVerboseLoggingEnabled) log("ConnectModeState: Network connection lost "); 5320 handleNetworkDisconnect(); 5321 transitionTo(mDisconnectedState); 5322 break; 5323 case CMD_QUERY_OSU_ICON: 5324 mPasspointManager.queryPasspointIcon( 5325 ((Bundle) message.obj).getLong(EXTRA_OSU_ICON_QUERY_BSSID), 5326 ((Bundle) message.obj).getString(EXTRA_OSU_ICON_QUERY_FILENAME)); 5327 break; 5328 case CMD_MATCH_PROVIDER_NETWORK: 5329 // TODO(b/31065385): Passpoint config management. 5330 replyToMessage(message, message.what, 0); 5331 break; 5332 default: 5333 return NOT_HANDLED; 5334 } 5335 return HANDLED; 5336 } 5337 } 5338 5339 private void updateCapabilities(WifiConfiguration config) { 5340 NetworkCapabilities networkCapabilities = new NetworkCapabilities(mDfltNetworkCapabilities); 5341 if (config != null) { 5342 if (config.ephemeral) { 5343 networkCapabilities.removeCapability( 5344 NetworkCapabilities.NET_CAPABILITY_TRUSTED); 5345 } else { 5346 networkCapabilities.addCapability( 5347 NetworkCapabilities.NET_CAPABILITY_TRUSTED); 5348 } 5349 5350 networkCapabilities.setSignalStrength( 5351 (mWifiInfo.getRssi() != WifiInfo.INVALID_RSSI) 5352 ? mWifiInfo.getRssi() 5353 : NetworkCapabilities.SIGNAL_STRENGTH_UNSPECIFIED); 5354 } 5355 5356 if (mWifiInfo.getMeteredHint()) { 5357 networkCapabilities.removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 5358 } 5359 5360 mNetworkAgent.sendNetworkCapabilities(networkCapabilities); 5361 } 5362 5363 private class WifiNetworkAgent extends NetworkAgent { 5364 public WifiNetworkAgent(Looper l, Context c, String TAG, NetworkInfo ni, 5365 NetworkCapabilities nc, LinkProperties lp, int score, NetworkMisc misc) { 5366 super(l, c, TAG, ni, nc, lp, score, misc); 5367 } 5368 5369 @Override 5370 protected void unwanted() { 5371 // Ignore if we're not the current networkAgent. 5372 if (this != mNetworkAgent) return; 5373 if (mVerboseLoggingEnabled) { 5374 log("WifiNetworkAgent -> Wifi unwanted score " + Integer.toString(mWifiInfo.score)); 5375 } 5376 unwantedNetwork(NETWORK_STATUS_UNWANTED_DISCONNECT); 5377 } 5378 5379 @Override 5380 protected void networkStatus(int status, String redirectUrl) { 5381 if (this != mNetworkAgent) return; 5382 if (status == NetworkAgent.INVALID_NETWORK) { 5383 if (mVerboseLoggingEnabled) { 5384 log("WifiNetworkAgent -> Wifi networkStatus invalid, score=" 5385 + Integer.toString(mWifiInfo.score)); 5386 } 5387 unwantedNetwork(NETWORK_STATUS_UNWANTED_VALIDATION_FAILED); 5388 } else if (status == NetworkAgent.VALID_NETWORK) { 5389 if (mVerboseLoggingEnabled) { 5390 log("WifiNetworkAgent -> Wifi networkStatus valid, score= " 5391 + Integer.toString(mWifiInfo.score)); 5392 } 5393 doNetworkStatus(status); 5394 } 5395 } 5396 5397 @Override 5398 protected void saveAcceptUnvalidated(boolean accept) { 5399 if (this != mNetworkAgent) return; 5400 WifiStateMachine.this.sendMessage(CMD_ACCEPT_UNVALIDATED, accept ? 1 : 0); 5401 } 5402 5403 @Override 5404 protected void startPacketKeepalive(Message msg) { 5405 WifiStateMachine.this.sendMessage( 5406 CMD_START_IP_PACKET_OFFLOAD, msg.arg1, msg.arg2, msg.obj); 5407 } 5408 5409 @Override 5410 protected void stopPacketKeepalive(Message msg) { 5411 WifiStateMachine.this.sendMessage( 5412 CMD_STOP_IP_PACKET_OFFLOAD, msg.arg1, msg.arg2, msg.obj); 5413 } 5414 5415 @Override 5416 protected void setSignalStrengthThresholds(int[] thresholds) { 5417 // 0. If there are no thresholds, or if the thresholds are invalid, stop RSSI monitoring. 5418 // 1. Tell the hardware to start RSSI monitoring here, possibly adding MIN_VALUE and 5419 // MAX_VALUE at the start/end of the thresholds array if necessary. 5420 // 2. Ensure that when the hardware event fires, we fetch the RSSI from the hardware 5421 // event, call mWifiInfo.setRssi() with it, and call updateCapabilities(), and then 5422 // re-arm the hardware event. This needs to be done on the state machine thread to 5423 // avoid race conditions. The RSSI used to re-arm the event (and perhaps also the one 5424 // sent in the NetworkCapabilities) must be the one received from the hardware event 5425 // received, or we might skip callbacks. 5426 // 3. Ensure that when we disconnect, RSSI monitoring is stopped. 5427 log("Received signal strength thresholds: " + Arrays.toString(thresholds)); 5428 if (thresholds.length == 0) { 5429 WifiStateMachine.this.sendMessage(CMD_STOP_RSSI_MONITORING_OFFLOAD, 5430 mWifiInfo.getRssi()); 5431 return; 5432 } 5433 int [] rssiVals = Arrays.copyOf(thresholds, thresholds.length + 2); 5434 rssiVals[rssiVals.length - 2] = Byte.MIN_VALUE; 5435 rssiVals[rssiVals.length - 1] = Byte.MAX_VALUE; 5436 Arrays.sort(rssiVals); 5437 byte[] rssiRange = new byte[rssiVals.length]; 5438 for (int i = 0; i < rssiVals.length; i++) { 5439 int val = rssiVals[i]; 5440 if (val <= Byte.MAX_VALUE && val >= Byte.MIN_VALUE) { 5441 rssiRange[i] = (byte) val; 5442 } else { 5443 Log.e(TAG, "Illegal value " + val + " for RSSI thresholds: " 5444 + Arrays.toString(rssiVals)); 5445 WifiStateMachine.this.sendMessage(CMD_STOP_RSSI_MONITORING_OFFLOAD, 5446 mWifiInfo.getRssi()); 5447 return; 5448 } 5449 } 5450 // TODO: Do we quash rssi values in this sorted array which are very close? 5451 mRssiRanges = rssiRange; 5452 WifiStateMachine.this.sendMessage(CMD_START_RSSI_MONITORING_OFFLOAD, 5453 mWifiInfo.getRssi()); 5454 } 5455 5456 @Override 5457 protected void preventAutomaticReconnect() { 5458 if (this != mNetworkAgent) return; 5459 unwantedNetwork(NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN); 5460 } 5461 } 5462 5463 void unwantedNetwork(int reason) { 5464 sendMessage(CMD_UNWANTED_NETWORK, reason); 5465 } 5466 5467 void doNetworkStatus(int status) { 5468 sendMessage(CMD_NETWORK_STATUS, status); 5469 } 5470 5471 // rfc4186 & rfc4187: 5472 // create Permanent Identity base on IMSI, 5473 // identity = usernam@realm 5474 // with username = prefix | IMSI 5475 // and realm is derived MMC/MNC tuple according 3GGP spec(TS23.003) 5476 private String buildIdentity(int eapMethod, String imsi, String mccMnc) { 5477 String mcc; 5478 String mnc; 5479 String prefix; 5480 5481 if (imsi == null || imsi.isEmpty()) 5482 return ""; 5483 5484 if (eapMethod == WifiEnterpriseConfig.Eap.SIM) 5485 prefix = "1"; 5486 else if (eapMethod == WifiEnterpriseConfig.Eap.AKA) 5487 prefix = "0"; 5488 else if (eapMethod == WifiEnterpriseConfig.Eap.AKA_PRIME) 5489 prefix = "6"; 5490 else // not a valide EapMethod 5491 return ""; 5492 5493 /* extract mcc & mnc from mccMnc */ 5494 if (mccMnc != null && !mccMnc.isEmpty()) { 5495 mcc = mccMnc.substring(0, 3); 5496 mnc = mccMnc.substring(3); 5497 if (mnc.length() == 2) 5498 mnc = "0" + mnc; 5499 } else { 5500 // extract mcc & mnc from IMSI, assume mnc size is 3 5501 mcc = imsi.substring(0, 3); 5502 mnc = imsi.substring(3, 6); 5503 } 5504 5505 return prefix + imsi + "@wlan.mnc" + mnc + ".mcc" + mcc + ".3gppnetwork.org"; 5506 } 5507 5508 boolean startScanForConfiguration(WifiConfiguration config) { 5509 if (config == null) 5510 return false; 5511 5512 // We are still seeing a fairly high power consumption triggered by autojoin scans 5513 // Hence do partial scans only for PSK configuration that are roamable since the 5514 // primary purpose of the partial scans is roaming. 5515 // Full badn scans with exponential backoff for the purpose or extended roaming and 5516 // network switching are performed unconditionally. 5517 ScanDetailCache scanDetailCache = 5518 mWifiConfigManager.getScanDetailCacheForNetwork(config.networkId); 5519 if (scanDetailCache == null 5520 || !config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.WPA_PSK) 5521 || scanDetailCache.size() > 6) { 5522 //return true but to not trigger the scan 5523 return true; 5524 } 5525 Set<Integer> freqs = 5526 mWifiConfigManager.fetchChannelSetForNetworkForPartialScan( 5527 config.networkId, ONE_HOUR_MILLI, mWifiInfo.getFrequency()); 5528 if (freqs != null && freqs.size() != 0) { 5529 //if (mVerboseLoggingEnabled) { 5530 logd("starting scan for " + config.configKey() + " with " + freqs); 5531 //} 5532 List<WifiScanner.ScanSettings.HiddenNetwork> hiddenNetworks = new ArrayList<>(); 5533 if (config.hiddenSSID) { 5534 hiddenNetworks.add(new WifiScanner.ScanSettings.HiddenNetwork(config.SSID)); 5535 } 5536 // Call wifi native to start the scan 5537 if (startScanNative(freqs, hiddenNetworks, WIFI_WORK_SOURCE)) { 5538 messageHandlingStatus = MESSAGE_HANDLING_STATUS_OK; 5539 } else { 5540 // used for debug only, mark scan as failed 5541 messageHandlingStatus = MESSAGE_HANDLING_STATUS_HANDLING_ERROR; 5542 } 5543 return true; 5544 } else { 5545 if (mVerboseLoggingEnabled) logd("no channels for " + config.configKey()); 5546 return false; 5547 } 5548 } 5549 5550 class L2ConnectedState extends State { 5551 @Override 5552 public void enter() { 5553 mRssiPollToken++; 5554 if (mEnableRssiPolling) { 5555 sendMessage(CMD_RSSI_POLL, mRssiPollToken, 0); 5556 } 5557 if (mNetworkAgent != null) { 5558 loge("Have NetworkAgent when entering L2Connected"); 5559 setNetworkDetailedState(DetailedState.DISCONNECTED); 5560 } 5561 setNetworkDetailedState(DetailedState.CONNECTING); 5562 5563 mNetworkAgent = new WifiNetworkAgent(getHandler().getLooper(), mContext, 5564 "WifiNetworkAgent", mNetworkInfo, mNetworkCapabilitiesFilter, 5565 mLinkProperties, 60, mNetworkMisc); 5566 5567 // We must clear the config BSSID, as the wifi chipset may decide to roam 5568 // from this point on and having the BSSID specified in the network block would 5569 // cause the roam to faile and the device to disconnect 5570 clearTargetBssid("L2ConnectedState"); 5571 mCountryCode.setReadyForChange(false); 5572 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_ASSOCIATED); 5573 } 5574 5575 @Override 5576 public void exit() { 5577 mIpManager.stop(); 5578 5579 // This is handled by receiving a NETWORK_DISCONNECTION_EVENT in ConnectModeState 5580 // Bug: 15347363 5581 // For paranoia's sake, call handleNetworkDisconnect 5582 // only if BSSID is null or last networkId 5583 // is not invalid. 5584 if (mVerboseLoggingEnabled) { 5585 StringBuilder sb = new StringBuilder(); 5586 sb.append("leaving L2ConnectedState state nid=" + Integer.toString(mLastNetworkId)); 5587 if (mLastBssid !=null) { 5588 sb.append(" ").append(mLastBssid); 5589 } 5590 } 5591 if (mLastBssid != null || mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 5592 handleNetworkDisconnect(); 5593 } 5594 mCountryCode.setReadyForChange(true); 5595 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_DISCONNECTED); 5596 } 5597 5598 @Override 5599 public boolean processMessage(Message message) { 5600 logStateAndMessage(message, this); 5601 5602 switch (message.what) { 5603 case DhcpClient.CMD_PRE_DHCP_ACTION: 5604 handlePreDhcpSetup(); 5605 break; 5606 case DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE: 5607 mIpManager.completedPreDhcpAction(); 5608 break; 5609 case DhcpClient.CMD_POST_DHCP_ACTION: 5610 handlePostDhcpSetup(); 5611 // We advance to mConnectedState because IpManager will also send a 5612 // CMD_IPV4_PROVISIONING_SUCCESS message, which calls handleIPv4Success(), 5613 // which calls updateLinkProperties, which then sends 5614 // CMD_IP_CONFIGURATION_SUCCESSFUL. 5615 // 5616 // In the event of failure, we transition to mDisconnectingState 5617 // similarly--via messages sent back from IpManager. 5618 break; 5619 case CMD_IPV4_PROVISIONING_SUCCESS: { 5620 handleIPv4Success((DhcpResults) message.obj); 5621 sendNetworkStateChangeBroadcast(mLastBssid); 5622 break; 5623 } 5624 case CMD_IPV4_PROVISIONING_FAILURE: { 5625 handleIPv4Failure(); 5626 break; 5627 } 5628 case CMD_IP_CONFIGURATION_SUCCESSFUL: 5629 handleSuccessfulIpConfiguration(); 5630 reportConnectionAttemptEnd( 5631 WifiMetrics.ConnectionEvent.FAILURE_NONE, 5632 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5633 sendConnectedState(); 5634 transitionTo(mConnectedState); 5635 break; 5636 case CMD_IP_CONFIGURATION_LOST: 5637 // Get Link layer stats so that we get fresh tx packet counters. 5638 getWifiLinkLayerStats(); 5639 handleIpConfigurationLost(); 5640 reportConnectionAttemptEnd( 5641 WifiMetrics.ConnectionEvent.FAILURE_DHCP, 5642 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5643 transitionTo(mDisconnectingState); 5644 break; 5645 case CMD_IP_REACHABILITY_LOST: 5646 if (mVerboseLoggingEnabled && message.obj != null) log((String) message.obj); 5647 if (mIpReachabilityDisconnectEnabled) { 5648 handleIpReachabilityLost(); 5649 transitionTo(mDisconnectingState); 5650 } else { 5651 logd("CMD_IP_REACHABILITY_LOST but disconnect disabled -- ignore"); 5652 } 5653 break; 5654 case CMD_DISCONNECT: 5655 mWifiNative.disconnect(); 5656 transitionTo(mDisconnectingState); 5657 break; 5658 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 5659 if (message.arg1 == 1) { 5660 mWifiNative.disconnect(); 5661 mTemporarilyDisconnectWifi = true; 5662 transitionTo(mDisconnectingState); 5663 } 5664 break; 5665 case CMD_SET_OPERATIONAL_MODE: 5666 if (message.arg1 != CONNECT_MODE) { 5667 sendMessage(CMD_DISCONNECT); 5668 deferMessage(message); 5669 } 5670 break; 5671 /* Ignore connection to same network */ 5672 case WifiManager.CONNECT_NETWORK: 5673 int netId = message.arg1; 5674 if (mWifiInfo.getNetworkId() == netId) { 5675 break; 5676 } 5677 return NOT_HANDLED; 5678 case WifiMonitor.NETWORK_CONNECTION_EVENT: 5679 mWifiInfo.setBSSID((String) message.obj); 5680 mLastNetworkId = lookupFrameworkNetworkId(message.arg1); 5681 mWifiInfo.setNetworkId(mLastNetworkId); 5682 if(!mLastBssid.equals(message.obj)) { 5683 mLastBssid = (String) message.obj; 5684 sendNetworkStateChangeBroadcast(mLastBssid); 5685 } 5686 break; 5687 case CMD_RSSI_POLL: 5688 if (message.arg1 == mRssiPollToken) { 5689 if (mEnableChipWakeUpWhenAssociated) { 5690 if (mVerboseLoggingEnabled) { 5691 log(" get link layer stats " + mWifiLinkLayerStatsSupported); 5692 } 5693 WifiLinkLayerStats stats = getWifiLinkLayerStats(); 5694 if (stats != null) { 5695 // Sanity check the results provided by driver 5696 if (mWifiInfo.getRssi() != WifiInfo.INVALID_RSSI 5697 && (stats.rssi_mgmt == 0 5698 || stats.beacon_rx == 0)) { 5699 stats = null; 5700 } 5701 } 5702 // Get Info and continue polling 5703 fetchRssiLinkSpeedAndFrequencyNative(); 5704 // Send the update score to network agent. 5705 mWifiScoreReport.calculateAndReportScore( 5706 mWifiInfo, mNetworkAgent, mAggressiveHandover, 5707 mWifiMetrics); 5708 } 5709 sendMessageDelayed(obtainMessage(CMD_RSSI_POLL, 5710 mRssiPollToken, 0), POLL_RSSI_INTERVAL_MSECS); 5711 if (mVerboseLoggingEnabled) sendRssiChangeBroadcast(mWifiInfo.getRssi()); 5712 } else { 5713 // Polling has completed 5714 } 5715 break; 5716 case CMD_ENABLE_RSSI_POLL: 5717 cleanWifiScore(); 5718 if (mEnableRssiPollWhenAssociated) { 5719 mEnableRssiPolling = (message.arg1 == 1); 5720 } else { 5721 mEnableRssiPolling = false; 5722 } 5723 mRssiPollToken++; 5724 if (mEnableRssiPolling) { 5725 // First poll 5726 fetchRssiLinkSpeedAndFrequencyNative(); 5727 sendMessageDelayed(obtainMessage(CMD_RSSI_POLL, 5728 mRssiPollToken, 0), POLL_RSSI_INTERVAL_MSECS); 5729 } 5730 break; 5731 case WifiManager.RSSI_PKTCNT_FETCH: 5732 RssiPacketCountInfo info = new RssiPacketCountInfo(); 5733 fetchRssiLinkSpeedAndFrequencyNative(); 5734 info.rssi = mWifiInfo.getRssi(); 5735 fetchPktcntNative(info); 5736 replyToMessage(message, WifiManager.RSSI_PKTCNT_FETCH_SUCCEEDED, info); 5737 break; 5738 case CMD_DELAYED_NETWORK_DISCONNECT: 5739 if (!isLinkDebouncing()) { 5740 5741 // Ignore if we are not debouncing 5742 logd("CMD_DELAYED_NETWORK_DISCONNECT and not debouncing - ignore " 5743 + message.arg1); 5744 return HANDLED; 5745 } else { 5746 logd("CMD_DELAYED_NETWORK_DISCONNECT and debouncing - disconnect " 5747 + message.arg1); 5748 5749 mIsLinkDebouncing = false; 5750 // If we are still debouncing while this message comes, 5751 // it means we were not able to reconnect within the alloted time 5752 // = LINK_FLAPPING_DEBOUNCE_MSEC 5753 // and thus, trigger a real disconnect 5754 handleNetworkDisconnect(); 5755 transitionTo(mDisconnectedState); 5756 } 5757 break; 5758 case CMD_ASSOCIATED_BSSID: 5759 if ((String) message.obj == null) { 5760 logw("Associated command w/o BSSID"); 5761 break; 5762 } 5763 mLastBssid = (String) message.obj; 5764 if (mLastBssid != null && (mWifiInfo.getBSSID() == null 5765 || !mLastBssid.equals(mWifiInfo.getBSSID()))) { 5766 mWifiInfo.setBSSID((String) message.obj); 5767 sendNetworkStateChangeBroadcast(mLastBssid); 5768 } 5769 break; 5770 case CMD_START_RSSI_MONITORING_OFFLOAD: 5771 case CMD_RSSI_THRESHOLD_BREACH: 5772 byte currRssi = (byte) message.arg1; 5773 processRssiThreshold(currRssi, message.what); 5774 break; 5775 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 5776 stopRssiMonitoringOffload(); 5777 break; 5778 case CMD_RESET_SIM_NETWORKS: 5779 if (message.arg1 == 0 // sim was removed 5780 && mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 5781 WifiConfiguration config = 5782 mWifiConfigManager.getConfiguredNetwork(mLastNetworkId); 5783 if (TelephonyUtil.isSimConfig(config)) { 5784 mWifiNative.disconnect(); 5785 transitionTo(mDisconnectingState); 5786 } 5787 } 5788 /* allow parent state to reset data for other networks */ 5789 return NOT_HANDLED; 5790 default: 5791 return NOT_HANDLED; 5792 } 5793 5794 return HANDLED; 5795 } 5796 } 5797 5798 class ObtainingIpState extends State { 5799 @Override 5800 public void enter() { 5801 WifiConfiguration currentConfig = getCurrentWifiConfiguration(); 5802 boolean isUsingStaticIp = 5803 (currentConfig.getIpAssignment() == IpConfiguration.IpAssignment.STATIC); 5804 if (mVerboseLoggingEnabled) { 5805 String key = ""; 5806 if (getCurrentWifiConfiguration() != null) { 5807 key = getCurrentWifiConfiguration().configKey(); 5808 } 5809 log("enter ObtainingIpState netId=" + Integer.toString(mLastNetworkId) 5810 + " " + key + " " 5811 + " roam=" + mAutoRoaming 5812 + " static=" + isUsingStaticIp); 5813 } 5814 5815 // Reset link Debouncing, indicating we have successfully re-connected to the AP 5816 // We might still be roaming 5817 mIsLinkDebouncing = false; 5818 5819 // Send event to CM & network change broadcast 5820 setNetworkDetailedState(DetailedState.OBTAINING_IPADDR); 5821 5822 // We must clear the config BSSID, as the wifi chipset may decide to roam 5823 // from this point on and having the BSSID specified in the network block would 5824 // cause the roam to fail and the device to disconnect. 5825 clearTargetBssid("ObtainingIpAddress"); 5826 5827 // Stop IpManager in case we're switching from DHCP to static 5828 // configuration or vice versa. 5829 // 5830 // TODO: Only ever enter this state the first time we connect to a 5831 // network, never on switching between static configuration and 5832 // DHCP. When we transition from static configuration to DHCP in 5833 // particular, we must tell ConnectivityService that we're 5834 // disconnected, because DHCP might take a long time during which 5835 // connectivity APIs such as getActiveNetworkInfo should not return 5836 // CONNECTED. 5837 stopIpManager(); 5838 5839 mIpManager.setHttpProxy(currentConfig.getHttpProxy()); 5840 if (!TextUtils.isEmpty(mTcpBufferSizes)) { 5841 mIpManager.setTcpBufferSizes(mTcpBufferSizes); 5842 } 5843 5844 if (!isUsingStaticIp) { 5845 final IpManager.ProvisioningConfiguration prov = 5846 IpManager.buildProvisioningConfiguration() 5847 .withPreDhcpAction() 5848 .withApfCapabilities(mWifiNative.getApfCapabilities()) 5849 .build(); 5850 mIpManager.startProvisioning(prov); 5851 // Get Link layer stats so as we get fresh tx packet counters 5852 getWifiLinkLayerStats(); 5853 } else { 5854 StaticIpConfiguration config = currentConfig.getStaticIpConfiguration(); 5855 if (config.ipAddress == null) { 5856 logd("Static IP lacks address"); 5857 sendMessage(CMD_IPV4_PROVISIONING_FAILURE); 5858 } else { 5859 final IpManager.ProvisioningConfiguration prov = 5860 IpManager.buildProvisioningConfiguration() 5861 .withStaticConfiguration(config) 5862 .withApfCapabilities(mWifiNative.getApfCapabilities()) 5863 .build(); 5864 mIpManager.startProvisioning(prov); 5865 } 5866 } 5867 } 5868 5869 @Override 5870 public boolean processMessage(Message message) { 5871 logStateAndMessage(message, this); 5872 5873 switch(message.what) { 5874 case CMD_START_CONNECT: 5875 case CMD_START_ROAM: 5876 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 5877 break; 5878 case WifiManager.SAVE_NETWORK: 5879 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5880 deferMessage(message); 5881 break; 5882 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 5883 reportConnectionAttemptEnd( 5884 WifiMetrics.ConnectionEvent.FAILURE_NETWORK_DISCONNECTION, 5885 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5886 return NOT_HANDLED; 5887 case CMD_SET_HIGH_PERF_MODE: 5888 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5889 deferMessage(message); 5890 break; 5891 /* Defer scan request since we should not switch to other channels at DHCP */ 5892 case CMD_START_SCAN: 5893 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5894 deferMessage(message); 5895 break; 5896 default: 5897 return NOT_HANDLED; 5898 } 5899 return HANDLED; 5900 } 5901 } 5902 5903 private void sendConnectedState() { 5904 // If this network was explicitly selected by the user, evaluate whether to call 5905 // explicitlySelected() so the system can treat it appropriately. 5906 WifiConfiguration config = getCurrentWifiConfiguration(); 5907 if (mWifiConfigManager.getLastSelectedNetwork() == config.networkId) { 5908 boolean prompt = 5909 mWifiConfigManager.checkConfigOverridePermission(config.lastConnectUid); 5910 if (mVerboseLoggingEnabled) { 5911 log("Network selected by UID " + config.lastConnectUid + " prompt=" + prompt); 5912 } 5913 if (prompt) { 5914 // Selected by the user via Settings or QuickSettings. If this network has Internet 5915 // access, switch to it. Otherwise, switch to it only if the user confirms that they 5916 // really want to switch, or has already confirmed and selected "Don't ask again". 5917 if (mVerboseLoggingEnabled) { 5918 log("explictlySelected acceptUnvalidated=" + config.noInternetAccessExpected); 5919 } 5920 mNetworkAgent.explicitlySelected(config.noInternetAccessExpected); 5921 } 5922 } 5923 5924 setNetworkDetailedState(DetailedState.CONNECTED); 5925 mWifiConfigManager.updateNetworkAfterConnect(mLastNetworkId); 5926 sendNetworkStateChangeBroadcast(mLastBssid); 5927 } 5928 5929 class RoamingState extends State { 5930 boolean mAssociated; 5931 @Override 5932 public void enter() { 5933 if (mVerboseLoggingEnabled) { 5934 log("RoamingState Enter" 5935 + " mScreenOn=" + mScreenOn ); 5936 } 5937 5938 // Make sure we disconnect if roaming fails 5939 roamWatchdogCount++; 5940 logd("Start Roam Watchdog " + roamWatchdogCount); 5941 sendMessageDelayed(obtainMessage(CMD_ROAM_WATCHDOG_TIMER, 5942 roamWatchdogCount, 0), ROAM_GUARD_TIMER_MSEC); 5943 mAssociated = false; 5944 } 5945 @Override 5946 public boolean processMessage(Message message) { 5947 logStateAndMessage(message, this); 5948 WifiConfiguration config; 5949 switch (message.what) { 5950 case CMD_IP_CONFIGURATION_LOST: 5951 config = getCurrentWifiConfiguration(); 5952 if (config != null) { 5953 mWifiDiagnostics.captureBugReportData( 5954 WifiDiagnostics.REPORT_REASON_AUTOROAM_FAILURE); 5955 } 5956 return NOT_HANDLED; 5957 case CMD_UNWANTED_NETWORK: 5958 if (mVerboseLoggingEnabled) { 5959 log("Roaming and CS doesnt want the network -> ignore"); 5960 } 5961 return HANDLED; 5962 case CMD_SET_OPERATIONAL_MODE: 5963 if (message.arg1 != CONNECT_MODE) { 5964 deferMessage(message); 5965 } 5966 break; 5967 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 5968 /** 5969 * If we get a SUPPLICANT_STATE_CHANGE_EVENT indicating a DISCONNECT 5970 * before NETWORK_DISCONNECTION_EVENT 5971 * And there is an associated BSSID corresponding to our target BSSID, then 5972 * we have missed the network disconnection, transition to mDisconnectedState 5973 * and handle the rest of the events there. 5974 */ 5975 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 5976 if (stateChangeResult.state == SupplicantState.DISCONNECTED 5977 || stateChangeResult.state == SupplicantState.INACTIVE 5978 || stateChangeResult.state == SupplicantState.INTERFACE_DISABLED) { 5979 if (mVerboseLoggingEnabled) { 5980 log("STATE_CHANGE_EVENT in roaming state " 5981 + stateChangeResult.toString() ); 5982 } 5983 if (stateChangeResult.BSSID != null 5984 && stateChangeResult.BSSID.equals(mTargetRoamBSSID)) { 5985 handleNetworkDisconnect(); 5986 transitionTo(mDisconnectedState); 5987 } 5988 } 5989 if (stateChangeResult.state == SupplicantState.ASSOCIATED) { 5990 // We completed the layer2 roaming part 5991 mAssociated = true; 5992 if (stateChangeResult.BSSID != null) { 5993 mTargetRoamBSSID = stateChangeResult.BSSID; 5994 } 5995 } 5996 break; 5997 case CMD_ROAM_WATCHDOG_TIMER: 5998 if (roamWatchdogCount == message.arg1) { 5999 if (mVerboseLoggingEnabled) log("roaming watchdog! -> disconnect"); 6000 mWifiMetrics.endConnectionEvent( 6001 WifiMetrics.ConnectionEvent.FAILURE_ROAM_TIMEOUT, 6002 WifiMetricsProto.ConnectionEvent.HLF_NONE); 6003 mRoamFailCount++; 6004 handleNetworkDisconnect(); 6005 mWifiNative.disconnect(); 6006 transitionTo(mDisconnectedState); 6007 } 6008 break; 6009 case WifiMonitor.NETWORK_CONNECTION_EVENT: 6010 if (mAssociated) { 6011 if (mVerboseLoggingEnabled) { 6012 log("roaming and Network connection established"); 6013 } 6014 mLastNetworkId = lookupFrameworkNetworkId(message.arg1); 6015 mLastBssid = (String) message.obj; 6016 mWifiInfo.setBSSID(mLastBssid); 6017 mWifiInfo.setNetworkId(mLastNetworkId); 6018 int reasonCode = message.arg2; 6019 mWifiConnectivityManager.trackBssid(mLastBssid, true, reasonCode); 6020 sendNetworkStateChangeBroadcast(mLastBssid); 6021 6022 // Successful framework roam! (probably) 6023 reportConnectionAttemptEnd( 6024 WifiMetrics.ConnectionEvent.FAILURE_NONE, 6025 WifiMetricsProto.ConnectionEvent.HLF_NONE); 6026 6027 // We must clear the config BSSID, as the wifi chipset may decide to roam 6028 // from this point on and having the BSSID specified by QNS would cause 6029 // the roam to fail and the device to disconnect. 6030 // When transition from RoamingState to DisconnectingState or 6031 // DisconnectedState, the config BSSID is cleared by 6032 // handleNetworkDisconnect(). 6033 clearTargetBssid("RoamingCompleted"); 6034 6035 // We used to transition to ObtainingIpState in an 6036 // attempt to do DHCPv4 RENEWs on framework roams. 6037 // DHCP can take too long to time out, and we now rely 6038 // upon IpManager's use of IpReachabilityMonitor to 6039 // confirm our current network configuration. 6040 // 6041 // mIpManager.confirmConfiguration() is called within 6042 // the handling of SupplicantState.COMPLETED. 6043 transitionTo(mConnectedState); 6044 } else { 6045 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 6046 } 6047 break; 6048 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6049 // Throw away but only if it corresponds to the network we're roaming to 6050 String bssid = (String) message.obj; 6051 if (true) { 6052 String target = ""; 6053 if (mTargetRoamBSSID != null) target = mTargetRoamBSSID; 6054 log("NETWORK_DISCONNECTION_EVENT in roaming state" 6055 + " BSSID=" + bssid 6056 + " target=" + target); 6057 } 6058 if (bssid != null && bssid.equals(mTargetRoamBSSID)) { 6059 handleNetworkDisconnect(); 6060 transitionTo(mDisconnectedState); 6061 } 6062 break; 6063 case WifiMonitor.SSID_TEMP_DISABLED: 6064 // Auth error while roaming 6065 int netId = lookupFrameworkNetworkId(message.arg1); 6066 logd("SSID_TEMP_DISABLED nid=" + Integer.toString(mLastNetworkId) 6067 + " id=" + netId 6068 + " isRoaming=" + isRoaming() 6069 + " roam=" + mAutoRoaming); 6070 if (netId == mLastNetworkId) { 6071 config = getCurrentWifiConfiguration(); 6072 if (config != null) { 6073 mWifiDiagnostics.captureBugReportData( 6074 WifiDiagnostics.REPORT_REASON_AUTOROAM_FAILURE); 6075 } 6076 handleNetworkDisconnect(); 6077 transitionTo(mDisconnectingState); 6078 } 6079 return NOT_HANDLED; 6080 case CMD_START_SCAN: 6081 deferMessage(message); 6082 break; 6083 default: 6084 return NOT_HANDLED; 6085 } 6086 return HANDLED; 6087 } 6088 6089 @Override 6090 public void exit() { 6091 logd("WifiStateMachine: Leaving Roaming state"); 6092 } 6093 } 6094 6095 class ConnectedState extends State { 6096 @Override 6097 public void enter() { 6098 updateDefaultRouteMacAddress(1000); 6099 if (mVerboseLoggingEnabled) { 6100 log("Enter ConnectedState " 6101 + " mScreenOn=" + mScreenOn); 6102 } 6103 6104 mWifiConnectivityManager.handleConnectionStateChanged( 6105 WifiConnectivityManager.WIFI_STATE_CONNECTED); 6106 registerConnected(); 6107 lastConnectAttemptTimestamp = 0; 6108 targetWificonfiguration = null; 6109 // Paranoia 6110 mIsLinkDebouncing = false; 6111 6112 // Not roaming anymore 6113 mAutoRoaming = false; 6114 6115 if (testNetworkDisconnect) { 6116 testNetworkDisconnectCounter++; 6117 logd("ConnectedState Enter start disconnect test " + 6118 testNetworkDisconnectCounter); 6119 sendMessageDelayed(obtainMessage(CMD_TEST_NETWORK_DISCONNECT, 6120 testNetworkDisconnectCounter, 0), 15000); 6121 } 6122 6123 mLastDriverRoamAttempt = 0; 6124 mTargetNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 6125 mWifiInjector.getWifiLastResortWatchdog().connectedStateTransition(true); 6126 } 6127 @Override 6128 public boolean processMessage(Message message) { 6129 WifiConfiguration config = null; 6130 logStateAndMessage(message, this); 6131 6132 switch (message.what) { 6133 case CMD_UNWANTED_NETWORK: 6134 if (message.arg1 == NETWORK_STATUS_UNWANTED_DISCONNECT) { 6135 mWifiNative.disconnect(); 6136 transitionTo(mDisconnectingState); 6137 } else if (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN || 6138 message.arg1 == NETWORK_STATUS_UNWANTED_VALIDATION_FAILED) { 6139 Log.d(TAG, (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN 6140 ? "NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN" 6141 : "NETWORK_STATUS_UNWANTED_VALIDATION_FAILED")); 6142 config = getCurrentWifiConfiguration(); 6143 if (config != null) { 6144 // Disable autojoin 6145 if (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN) { 6146 mWifiConfigManager.setNetworkValidatedInternetAccess( 6147 config.networkId, false); 6148 mWifiConfigManager.updateNetworkSelectionStatus(config.networkId, 6149 WifiConfiguration.NetworkSelectionStatus 6150 .DISABLED_NO_INTERNET); 6151 } 6152 mWifiConfigManager.incrementNetworkNoInternetAccessReports( 6153 config.networkId); 6154 } 6155 } 6156 return HANDLED; 6157 case CMD_NETWORK_STATUS: 6158 if (message.arg1 == NetworkAgent.VALID_NETWORK) { 6159 config = getCurrentWifiConfiguration(); 6160 if (config != null) { 6161 // re-enable autojoin 6162 mWifiConfigManager.setNetworkValidatedInternetAccess( 6163 config.networkId, true); 6164 } 6165 } 6166 return HANDLED; 6167 case CMD_ACCEPT_UNVALIDATED: 6168 boolean accept = (message.arg1 != 0); 6169 mWifiConfigManager.setNetworkNoInternetAccessExpected(mLastNetworkId, accept); 6170 return HANDLED; 6171 case CMD_TEST_NETWORK_DISCONNECT: 6172 // Force a disconnect 6173 if (message.arg1 == testNetworkDisconnectCounter) { 6174 mWifiNative.disconnect(); 6175 } 6176 break; 6177 case CMD_ASSOCIATED_BSSID: 6178 // ASSOCIATING to a new BSSID while already connected, indicates 6179 // that driver is roaming 6180 mLastDriverRoamAttempt = mClock.getWallClockMillis(); 6181 return NOT_HANDLED; 6182 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6183 long lastRoam = 0; 6184 reportConnectionAttemptEnd( 6185 WifiMetrics.ConnectionEvent.FAILURE_NETWORK_DISCONNECTION, 6186 WifiMetricsProto.ConnectionEvent.HLF_NONE); 6187 if (mLastDriverRoamAttempt != 0) { 6188 // Calculate time since last driver roam attempt 6189 lastRoam = mClock.getWallClockMillis() - mLastDriverRoamAttempt; 6190 mLastDriverRoamAttempt = 0; 6191 } 6192 if (unexpectedDisconnectedReason(message.arg2)) { 6193 mWifiDiagnostics.captureBugReportData( 6194 WifiDiagnostics.REPORT_REASON_UNEXPECTED_DISCONNECT); 6195 } 6196 config = getCurrentWifiConfiguration(); 6197 if (mEnableLinkDebouncing 6198 && mScreenOn 6199 && !isLinkDebouncing() 6200 && config != null 6201 && config.getNetworkSelectionStatus().isNetworkEnabled() 6202 && config.networkId != mWifiConfigManager.getLastSelectedNetwork() 6203 && (message.arg2 != 3 /* reason cannot be 3, i.e. locally generated */ 6204 || (lastRoam > 0 && lastRoam < 2000) /* unless driver is roaming */) 6205 && ((ScanResult.is24GHz(mWifiInfo.getFrequency()) 6206 && mWifiInfo.getRssi() > 6207 mThresholdQualifiedRssi5) 6208 || (ScanResult.is5GHz(mWifiInfo.getFrequency()) 6209 && mWifiInfo.getRssi() > 6210 mThresholdQualifiedRssi5))) { 6211 // Start de-bouncing the L2 disconnection: 6212 // this L2 disconnection might be spurious. 6213 // Hence we allow 4 seconds for the state machine to try 6214 // to reconnect, go thru the 6215 // roaming cycle and enter Obtaining IP address 6216 // before signalling the disconnect to ConnectivityService and L3 6217 startScanForConfiguration(getCurrentWifiConfiguration()); 6218 mIsLinkDebouncing = true; 6219 6220 sendMessageDelayed(obtainMessage(CMD_DELAYED_NETWORK_DISCONNECT, 6221 0, mLastNetworkId), LINK_FLAPPING_DEBOUNCE_MSEC); 6222 if (mVerboseLoggingEnabled) { 6223 log("NETWORK_DISCONNECTION_EVENT in connected state" 6224 + " BSSID=" + mWifiInfo.getBSSID() 6225 + " RSSI=" + mWifiInfo.getRssi() 6226 + " freq=" + mWifiInfo.getFrequency() 6227 + " reason=" + message.arg2 6228 + " -> debounce"); 6229 } 6230 return HANDLED; 6231 } else { 6232 if (mVerboseLoggingEnabled) { 6233 log("NETWORK_DISCONNECTION_EVENT in connected state" 6234 + " BSSID=" + mWifiInfo.getBSSID() 6235 + " RSSI=" + mWifiInfo.getRssi() 6236 + " freq=" + mWifiInfo.getFrequency() 6237 + " was debouncing=" + isLinkDebouncing() 6238 + " reason=" + message.arg2 6239 + " Network Selection Status=" + (config == null ? "Unavailable" 6240 : config.getNetworkSelectionStatus().getNetworkStatusString())); 6241 } 6242 } 6243 break; 6244 case CMD_START_ROAM: 6245 // Clear the driver roam indication since we are attempting a framework roam 6246 mLastDriverRoamAttempt = 0; 6247 6248 /* Connect command coming from auto-join */ 6249 int netId = message.arg1; 6250 ScanResult candidate = (ScanResult)message.obj; 6251 String bssid = SUPPLICANT_BSSID_ANY; 6252 if (candidate != null) { 6253 bssid = candidate.BSSID; 6254 } 6255 config = mWifiConfigManager.getConfiguredNetworkWithPassword(netId); 6256 if (config == null) { 6257 loge("CMD_START_ROAM and no config, bail out..."); 6258 break; 6259 } 6260 6261 setTargetBssid(config, bssid); 6262 mTargetNetworkId = netId; 6263 6264 logd("CMD_START_ROAM sup state " 6265 + mSupplicantStateTracker.getSupplicantStateName() 6266 + " my state " + getCurrentState().getName() 6267 + " nid=" + Integer.toString(netId) 6268 + " config " + config.configKey() 6269 + " targetRoamBSSID " + mTargetRoamBSSID); 6270 6271 reportConnectionAttemptStart(config, mTargetRoamBSSID, 6272 WifiMetricsProto.ConnectionEvent.ROAM_ENTERPRISE); 6273 if (mWifiSupplicantControl.roamToNetwork(config)) { 6274 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 6275 targetWificonfiguration = config; 6276 mAutoRoaming = true; 6277 transitionTo(mRoamingState); 6278 } else { 6279 loge("CMD_START_ROAM Failed to start roaming to network " + config); 6280 reportConnectionAttemptEnd( 6281 WifiMetrics.ConnectionEvent.FAILURE_CONNECT_NETWORK_FAILED, 6282 WifiMetricsProto.ConnectionEvent.HLF_NONE); 6283 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 6284 WifiManager.ERROR); 6285 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 6286 break; 6287 } 6288 break; 6289 case CMD_START_IP_PACKET_OFFLOAD: { 6290 int slot = message.arg1; 6291 int intervalSeconds = message.arg2; 6292 KeepalivePacketData pkt = (KeepalivePacketData) message.obj; 6293 byte[] dstMac; 6294 try { 6295 InetAddress gateway = RouteInfo.selectBestRoute( 6296 mLinkProperties.getRoutes(), pkt.dstAddress).getGateway(); 6297 String dstMacStr = macAddressFromRoute(gateway.getHostAddress()); 6298 dstMac = macAddressFromString(dstMacStr); 6299 } catch (NullPointerException|IllegalArgumentException e) { 6300 loge("Can't find MAC address for next hop to " + pkt.dstAddress); 6301 mNetworkAgent.onPacketKeepaliveEvent(slot, 6302 ConnectivityManager.PacketKeepalive.ERROR_INVALID_IP_ADDRESS); 6303 break; 6304 } 6305 pkt.dstMac = dstMac; 6306 int result = startWifiIPPacketOffload(slot, pkt, intervalSeconds); 6307 mNetworkAgent.onPacketKeepaliveEvent(slot, result); 6308 break; 6309 } 6310 default: 6311 return NOT_HANDLED; 6312 } 6313 return HANDLED; 6314 } 6315 6316 @Override 6317 public void exit() { 6318 logd("WifiStateMachine: Leaving Connected state"); 6319 mWifiConnectivityManager.handleConnectionStateChanged( 6320 WifiConnectivityManager.WIFI_STATE_TRANSITIONING); 6321 6322 mLastDriverRoamAttempt = 0; 6323 mWifiInjector.getWifiLastResortWatchdog().connectedStateTransition(false); 6324 } 6325 } 6326 6327 class DisconnectingState extends State { 6328 6329 @Override 6330 public void enter() { 6331 6332 if (mVerboseLoggingEnabled) { 6333 logd(" Enter DisconnectingState State screenOn=" + mScreenOn); 6334 } 6335 6336 // Make sure we disconnect: we enter this state prior to connecting to a new 6337 // network, waiting for either a DISCONNECT event or a SUPPLICANT_STATE_CHANGE 6338 // event which in this case will be indicating that supplicant started to associate. 6339 // In some cases supplicant doesn't ignore the connect requests (it might not 6340 // find the target SSID in its cache), 6341 // Therefore we end up stuck that state, hence the need for the watchdog. 6342 disconnectingWatchdogCount++; 6343 logd("Start Disconnecting Watchdog " + disconnectingWatchdogCount); 6344 sendMessageDelayed(obtainMessage(CMD_DISCONNECTING_WATCHDOG_TIMER, 6345 disconnectingWatchdogCount, 0), DISCONNECTING_GUARD_TIMER_MSEC); 6346 } 6347 6348 @Override 6349 public boolean processMessage(Message message) { 6350 logStateAndMessage(message, this); 6351 switch (message.what) { 6352 case CMD_SET_OPERATIONAL_MODE: 6353 if (message.arg1 != CONNECT_MODE) { 6354 deferMessage(message); 6355 } 6356 break; 6357 case CMD_START_SCAN: 6358 deferMessage(message); 6359 return HANDLED; 6360 case CMD_DISCONNECT: 6361 if (mVerboseLoggingEnabled) log("Ignore CMD_DISCONNECT when already disconnecting."); 6362 break; 6363 case CMD_DISCONNECTING_WATCHDOG_TIMER: 6364 if (disconnectingWatchdogCount == message.arg1) { 6365 if (mVerboseLoggingEnabled) log("disconnecting watchdog! -> disconnect"); 6366 handleNetworkDisconnect(); 6367 transitionTo(mDisconnectedState); 6368 } 6369 break; 6370 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6371 /** 6372 * If we get a SUPPLICANT_STATE_CHANGE_EVENT before NETWORK_DISCONNECTION_EVENT 6373 * we have missed the network disconnection, transition to mDisconnectedState 6374 * and handle the rest of the events there 6375 */ 6376 deferMessage(message); 6377 handleNetworkDisconnect(); 6378 transitionTo(mDisconnectedState); 6379 break; 6380 default: 6381 return NOT_HANDLED; 6382 } 6383 return HANDLED; 6384 } 6385 } 6386 6387 class DisconnectedState extends State { 6388 @Override 6389 public void enter() { 6390 // We dont scan frequently if this is a temporary disconnect 6391 // due to p2p 6392 if (mTemporarilyDisconnectWifi) { 6393 p2pSendMessage(WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE); 6394 return; 6395 } 6396 6397 if (mVerboseLoggingEnabled) { 6398 logd(" Enter DisconnectedState screenOn=" + mScreenOn); 6399 } 6400 6401 /** clear the roaming state, if we were roaming, we failed */ 6402 mAutoRoaming = false; 6403 6404 mWifiConnectivityManager.handleConnectionStateChanged( 6405 WifiConnectivityManager.WIFI_STATE_DISCONNECTED); 6406 6407 /** 6408 * If we have no networks saved, the supplicant stops doing the periodic scan. 6409 * The scans are useful to notify the user of the presence of an open network. 6410 * Note that these are not wake up scans. 6411 */ 6412 if (mNoNetworksPeriodicScan != 0 && !mP2pConnected.get() 6413 && mWifiConfigManager.getSavedNetworks().size() == 0) { 6414 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6415 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6416 } 6417 6418 mDisconnectedTimeStamp = mClock.getWallClockMillis(); 6419 } 6420 @Override 6421 public boolean processMessage(Message message) { 6422 boolean ret = HANDLED; 6423 6424 logStateAndMessage(message, this); 6425 6426 switch (message.what) { 6427 case CMD_NO_NETWORKS_PERIODIC_SCAN: 6428 if (mP2pConnected.get()) break; 6429 if (mNoNetworksPeriodicScan != 0 && message.arg1 == mPeriodicScanToken && 6430 mWifiConfigManager.getSavedNetworks().size() == 0) { 6431 startScan(UNKNOWN_SCAN_SOURCE, -1, null, WIFI_WORK_SOURCE); 6432 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6433 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6434 } 6435 break; 6436 case WifiManager.FORGET_NETWORK: 6437 case CMD_REMOVE_NETWORK: 6438 case CMD_REMOVE_APP_CONFIGURATIONS: 6439 case CMD_REMOVE_USER_CONFIGURATIONS: 6440 // Set up a delayed message here. After the forget/remove is handled 6441 // the handled delayed message will determine if there is a need to 6442 // scan and continue 6443 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6444 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6445 ret = NOT_HANDLED; 6446 break; 6447 case CMD_SET_OPERATIONAL_MODE: 6448 if (message.arg1 != CONNECT_MODE) { 6449 mOperationalMode = message.arg1; 6450 if (mOperationalMode == DISABLED_MODE) { 6451 transitionTo(mSupplicantStoppingState); 6452 } else if (mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 6453 p2pSendMessage(CMD_DISABLE_P2P_REQ); 6454 setWifiState(WIFI_STATE_DISABLED); 6455 transitionTo(mScanModeState); 6456 } else if (mOperationalMode == SCAN_ONLY_MODE) { 6457 transitionTo(mScanModeState); 6458 } 6459 } 6460 break; 6461 case CMD_DISCONNECT: 6462 mWifiNative.disconnect(); 6463 break; 6464 /* Ignore network disconnect */ 6465 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6466 // Interpret this as an L2 connection failure 6467 break; 6468 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6469 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 6470 if (mVerboseLoggingEnabled) { 6471 logd("SUPPLICANT_STATE_CHANGE_EVENT state=" + stateChangeResult.state + 6472 " -> state= " + WifiInfo.getDetailedStateOf(stateChangeResult.state) 6473 + " debouncing=" + isLinkDebouncing()); 6474 } 6475 setNetworkDetailedState(WifiInfo.getDetailedStateOf(stateChangeResult.state)); 6476 /* ConnectModeState does the rest of the handling */ 6477 ret = NOT_HANDLED; 6478 break; 6479 case CMD_START_SCAN: 6480 if (!checkOrDeferScanAllowed(message)) { 6481 // The scan request was rescheduled 6482 messageHandlingStatus = MESSAGE_HANDLING_STATUS_REFUSED; 6483 return HANDLED; 6484 } 6485 6486 ret = NOT_HANDLED; 6487 break; 6488 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 6489 NetworkInfo info = (NetworkInfo) message.obj; 6490 mP2pConnected.set(info.isConnected()); 6491 if (mP2pConnected.get()) { 6492 int defaultInterval = mContext.getResources().getInteger( 6493 R.integer.config_wifi_scan_interval_p2p_connected); 6494 long scanIntervalMs = mFacade.getLongSetting(mContext, 6495 Settings.Global.WIFI_SCAN_INTERVAL_WHEN_P2P_CONNECTED_MS, 6496 defaultInterval); 6497 mWifiNative.setScanInterval((int) scanIntervalMs/1000); 6498 } else if (mWifiConfigManager.getSavedNetworks().size() == 0) { 6499 if (mVerboseLoggingEnabled) log("Turn on scanning after p2p disconnected"); 6500 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6501 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6502 } 6503 break; 6504 case CMD_RECONNECT: 6505 case CMD_REASSOCIATE: 6506 if (mTemporarilyDisconnectWifi) { 6507 // Drop a third party reconnect/reassociate if STA is 6508 // temporarily disconnected for p2p 6509 break; 6510 } else { 6511 // ConnectModeState handles it 6512 ret = NOT_HANDLED; 6513 } 6514 break; 6515 case CMD_SCREEN_STATE_CHANGED: 6516 handleScreenStateChanged(message.arg1 != 0); 6517 break; 6518 default: 6519 ret = NOT_HANDLED; 6520 } 6521 return ret; 6522 } 6523 6524 @Override 6525 public void exit() { 6526 mWifiConnectivityManager.handleConnectionStateChanged( 6527 WifiConnectivityManager.WIFI_STATE_TRANSITIONING); 6528 } 6529 } 6530 6531 class WpsRunningState extends State { 6532 // Tracks the source to provide a reply 6533 private Message mSourceMessage; 6534 @Override 6535 public void enter() { 6536 mSourceMessage = Message.obtain(getCurrentMessage()); 6537 } 6538 @Override 6539 public boolean processMessage(Message message) { 6540 logStateAndMessage(message, this); 6541 6542 switch (message.what) { 6543 case WifiMonitor.WPS_SUCCESS_EVENT: 6544 // Ignore intermediate success, wait for full connection 6545 break; 6546 case WifiMonitor.NETWORK_CONNECTION_EVENT: 6547 replyToMessage(mSourceMessage, WifiManager.WPS_COMPLETED); 6548 mSourceMessage.recycle(); 6549 mSourceMessage = null; 6550 deferMessage(message); 6551 transitionTo(mDisconnectedState); 6552 break; 6553 case WifiMonitor.WPS_OVERLAP_EVENT: 6554 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, 6555 WifiManager.WPS_OVERLAP_ERROR); 6556 mSourceMessage.recycle(); 6557 mSourceMessage = null; 6558 transitionTo(mDisconnectedState); 6559 break; 6560 case WifiMonitor.WPS_FAIL_EVENT: 6561 // Arg1 has the reason for the failure 6562 if ((message.arg1 != WifiManager.ERROR) || (message.arg2 != 0)) { 6563 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, message.arg1); 6564 mSourceMessage.recycle(); 6565 mSourceMessage = null; 6566 transitionTo(mDisconnectedState); 6567 } else { 6568 if (mVerboseLoggingEnabled) { 6569 log("Ignore unspecified fail event during WPS connection"); 6570 } 6571 } 6572 break; 6573 case WifiMonitor.WPS_TIMEOUT_EVENT: 6574 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, 6575 WifiManager.WPS_TIMED_OUT); 6576 mSourceMessage.recycle(); 6577 mSourceMessage = null; 6578 transitionTo(mDisconnectedState); 6579 break; 6580 case WifiManager.START_WPS: 6581 replyToMessage(message, WifiManager.WPS_FAILED, WifiManager.IN_PROGRESS); 6582 break; 6583 case WifiManager.CANCEL_WPS: 6584 if (mWifiNative.cancelWps()) { 6585 replyToMessage(message, WifiManager.CANCEL_WPS_SUCCEDED); 6586 } else { 6587 replyToMessage(message, WifiManager.CANCEL_WPS_FAILED, WifiManager.ERROR); 6588 } 6589 transitionTo(mDisconnectedState); 6590 break; 6591 /** 6592 * Defer all commands that can cause connections to a different network 6593 * or put the state machine out of connect mode 6594 */ 6595 case CMD_SET_OPERATIONAL_MODE: 6596 case WifiManager.CONNECT_NETWORK: 6597 case CMD_ENABLE_NETWORK: 6598 case CMD_RECONNECT: 6599 case CMD_REASSOCIATE: 6600 deferMessage(message); 6601 break; 6602 case CMD_START_CONNECT: 6603 case CMD_START_ROAM: 6604 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 6605 return HANDLED; 6606 case CMD_START_SCAN: 6607 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 6608 return HANDLED; 6609 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6610 if (mVerboseLoggingEnabled) log("Network connection lost"); 6611 handleNetworkDisconnect(); 6612 break; 6613 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 6614 if (mVerboseLoggingEnabled) { 6615 log("Ignore Assoc reject event during WPS Connection"); 6616 } 6617 break; 6618 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 6619 // Disregard auth failure events during WPS connection. The 6620 // EAP sequence is retried several times, and there might be 6621 // failures (especially for wps pin). We will get a WPS_XXX 6622 // event at the end of the sequence anyway. 6623 if (mVerboseLoggingEnabled) log("Ignore auth failure during WPS connection"); 6624 break; 6625 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6626 // Throw away supplicant state changes when WPS is running. 6627 // We will start getting supplicant state changes once we get 6628 // a WPS success or failure 6629 break; 6630 default: 6631 return NOT_HANDLED; 6632 } 6633 return HANDLED; 6634 } 6635 6636 @Override 6637 public void exit() { 6638 mWifiConfigManager.loadFromStore(); 6639 } 6640 } 6641 6642 class SoftApState extends State { 6643 private SoftApManager mSoftApManager; 6644 6645 private class SoftApListener implements SoftApManager.Listener { 6646 @Override 6647 public void onStateChanged(int state, int reason) { 6648 if (state == WIFI_AP_STATE_DISABLED) { 6649 sendMessage(CMD_AP_STOPPED); 6650 } else if (state == WIFI_AP_STATE_FAILED) { 6651 sendMessage(CMD_START_AP_FAILURE); 6652 } 6653 6654 setWifiApState(state, reason); 6655 } 6656 } 6657 6658 @Override 6659 public void enter() { 6660 final Message message = getCurrentMessage(); 6661 if (message.what != CMD_START_AP) { 6662 throw new RuntimeException("Illegal transition to SoftApState: " + message); 6663 } 6664 6665 IApInterface apInterface = setupDriverForSoftAp(); 6666 if (apInterface == null) { 6667 setWifiApState(WIFI_AP_STATE_FAILED, 6668 WifiManager.SAP_START_FAILURE_GENERAL); 6669 /** 6670 * Transition to InitialState to reset the 6671 * driver/HAL back to the initial state. 6672 */ 6673 transitionTo(mInitialState); 6674 return; 6675 } 6676 6677 WifiConfiguration config = (WifiConfiguration) message.obj; 6678 6679 checkAndSetConnectivityInstance(); 6680 mSoftApManager = mWifiInjector.makeSoftApManager(mNwService, 6681 new SoftApListener(), 6682 apInterface, 6683 config); 6684 mSoftApManager.start(); 6685 } 6686 6687 @Override 6688 public void exit() { 6689 mSoftApManager = null; 6690 } 6691 6692 @Override 6693 public boolean processMessage(Message message) { 6694 logStateAndMessage(message, this); 6695 6696 switch(message.what) { 6697 case CMD_START_AP: 6698 /* Ignore start command when it is starting/started. */ 6699 break; 6700 case CMD_STOP_AP: 6701 mSoftApManager.stop(); 6702 break; 6703 case CMD_START_AP_FAILURE: 6704 transitionTo(mInitialState); 6705 break; 6706 case CMD_AP_STOPPED: 6707 transitionTo(mInitialState); 6708 break; 6709 default: 6710 return NOT_HANDLED; 6711 } 6712 return HANDLED; 6713 } 6714 } 6715 6716 /** 6717 * State machine initiated requests can have replyTo set to null indicating 6718 * there are no recepients, we ignore those reply actions. 6719 */ 6720 private void replyToMessage(Message msg, int what) { 6721 if (msg.replyTo == null) return; 6722 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 6723 mReplyChannel.replyToMessage(msg, dstMsg); 6724 } 6725 6726 private void replyToMessage(Message msg, int what, int arg1) { 6727 if (msg.replyTo == null) return; 6728 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 6729 dstMsg.arg1 = arg1; 6730 mReplyChannel.replyToMessage(msg, dstMsg); 6731 } 6732 6733 private void replyToMessage(Message msg, int what, Object obj) { 6734 if (msg.replyTo == null) return; 6735 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 6736 dstMsg.obj = obj; 6737 mReplyChannel.replyToMessage(msg, dstMsg); 6738 } 6739 6740 /** 6741 * arg2 on the source message has a unique id that needs to be retained in replies 6742 * to match the request 6743 * <p>see WifiManager for details 6744 */ 6745 private Message obtainMessageWithWhatAndArg2(Message srcMsg, int what) { 6746 Message msg = Message.obtain(); 6747 msg.what = what; 6748 msg.arg2 = srcMsg.arg2; 6749 return msg; 6750 } 6751 6752 /** 6753 * @param wifiCredentialEventType WIFI_CREDENTIAL_SAVED or WIFI_CREDENTIAL_FORGOT 6754 * @param config Must have a WifiConfiguration object to succeed 6755 */ 6756 private void broadcastWifiCredentialChanged(int wifiCredentialEventType, 6757 WifiConfiguration config) { 6758 if (config != null && config.preSharedKey != null) { 6759 Intent intent = new Intent(WifiManager.WIFI_CREDENTIAL_CHANGED_ACTION); 6760 intent.putExtra(WifiManager.EXTRA_WIFI_CREDENTIAL_SSID, config.SSID); 6761 intent.putExtra(WifiManager.EXTRA_WIFI_CREDENTIAL_EVENT_TYPE, 6762 wifiCredentialEventType); 6763 mContext.sendBroadcastAsUser(intent, UserHandle.CURRENT, 6764 android.Manifest.permission.RECEIVE_WIFI_CREDENTIAL_CHANGE); 6765 } 6766 } 6767 6768 void handleGsmAuthRequest(SimAuthRequestData requestData) { 6769 if (targetWificonfiguration == null 6770 || targetWificonfiguration.networkId 6771 == lookupFrameworkNetworkId(requestData.networkId)) { 6772 logd("id matches targetWifiConfiguration"); 6773 } else { 6774 logd("id does not match targetWifiConfiguration"); 6775 return; 6776 } 6777 6778 String response = 6779 TelephonyUtil.getGsmSimAuthResponse(requestData.data, getTelephonyManager()); 6780 if (response == null) { 6781 mWifiNative.simAuthFailedResponse(requestData.networkId); 6782 } else { 6783 logv("Supplicant Response -" + response); 6784 mWifiNative.simAuthResponse(requestData.networkId, "GSM-AUTH", response); 6785 } 6786 } 6787 6788 void handle3GAuthRequest(SimAuthRequestData requestData) { 6789 if (targetWificonfiguration == null 6790 || targetWificonfiguration.networkId 6791 == lookupFrameworkNetworkId(requestData.networkId)) { 6792 logd("id matches targetWifiConfiguration"); 6793 } else { 6794 logd("id does not match targetWifiConfiguration"); 6795 return; 6796 } 6797 6798 SimAuthResponseData response = 6799 TelephonyUtil.get3GAuthResponse(requestData, getTelephonyManager()); 6800 if (response != null) { 6801 mWifiNative.simAuthResponse(requestData.networkId, response.type, response.response); 6802 } else { 6803 mWifiNative.umtsAuthFailedResponse(requestData.networkId); 6804 } 6805 } 6806 6807 /** 6808 * Automatically connect to the network specified 6809 * 6810 * @param networkId ID of the network to connect to 6811 * @param bssid BSSID of the network 6812 */ 6813 public void startConnectToNetwork(int networkId, String bssid) { 6814 synchronized (mWifiReqCountLock) { 6815 if (hasConnectionRequests()) { 6816 sendMessage(CMD_START_CONNECT, networkId, 0, bssid); 6817 } 6818 } 6819 } 6820 6821 /** 6822 * Automatically roam to the network specified 6823 * 6824 * @param networkId ID of the network to roam to 6825 * @param scanResult scan result which identifies the network to roam to 6826 */ 6827 public void startRoamToNetwork(int networkId, ScanResult scanResult) { 6828 sendMessage(CMD_START_ROAM, networkId, 0, scanResult); 6829 } 6830 6831 /** 6832 * Dynamically turn on/off WifiConnectivityManager 6833 * 6834 * @param enabled true-enable; false-disable 6835 */ 6836 public void enableWifiConnectivityManager(boolean enabled) { 6837 sendMessage(CMD_ENABLE_WIFI_CONNECTIVITY_MANAGER, enabled ? 1 : 0); 6838 } 6839 6840 /** 6841 * @param reason reason code from supplicant on network disconnected event 6842 * @return true if this is a suspicious disconnect 6843 */ 6844 static boolean unexpectedDisconnectedReason(int reason) { 6845 return reason == 2 // PREV_AUTH_NOT_VALID 6846 || reason == 6 // CLASS2_FRAME_FROM_NONAUTH_STA 6847 || reason == 7 // FRAME_FROM_NONASSOC_STA 6848 || reason == 8 // STA_HAS_LEFT 6849 || reason == 9 // STA_REQ_ASSOC_WITHOUT_AUTH 6850 || reason == 14 // MICHAEL_MIC_FAILURE 6851 || reason == 15 // 4WAY_HANDSHAKE_TIMEOUT 6852 || reason == 16 // GROUP_KEY_UPDATE_TIMEOUT 6853 || reason == 18 // GROUP_CIPHER_NOT_VALID 6854 || reason == 19 // PAIRWISE_CIPHER_NOT_VALID 6855 || reason == 23 // IEEE_802_1X_AUTH_FAILED 6856 || reason == 34; // DISASSOC_LOW_ACK 6857 } 6858 6859 /** 6860 * Update WifiMetrics before dumping 6861 */ 6862 void updateWifiMetrics() { 6863 int numSavedNetworks = mWifiConfigManager.getConfiguredNetworks().size(); 6864 int numOpenNetworks = 0; 6865 int numPersonalNetworks = 0; 6866 int numEnterpriseNetworks = 0; 6867 int numNetworksAddedByUser = 0; 6868 int numNetworksAddedByApps = 0; 6869 int numHiddenNetworks = 0; 6870 int numPasspoint = 0; 6871 for (WifiConfiguration config : mWifiConfigManager.getSavedNetworks()) { 6872 if (config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.NONE)) { 6873 numOpenNetworks++; 6874 } else if (config.isEnterprise()) { 6875 numEnterpriseNetworks++; 6876 } else { 6877 numPersonalNetworks++; 6878 } 6879 if (config.selfAdded) { 6880 numNetworksAddedByUser++; 6881 } else { 6882 numNetworksAddedByApps++; 6883 } 6884 if (config.hiddenSSID) { 6885 numHiddenNetworks++; 6886 } 6887 if (config.isPasspoint()) { 6888 numPasspoint++; 6889 } 6890 } 6891 mWifiMetrics.setNumSavedNetworks(numSavedNetworks); 6892 mWifiMetrics.setNumOpenNetworks(numOpenNetworks); 6893 mWifiMetrics.setNumPersonalNetworks(numPersonalNetworks); 6894 mWifiMetrics.setNumEnterpriseNetworks(numEnterpriseNetworks); 6895 mWifiMetrics.setNumNetworksAddedByUser(numNetworksAddedByUser); 6896 mWifiMetrics.setNumNetworksAddedByApps(numNetworksAddedByApps); 6897 mWifiMetrics.setNumHiddenNetworks(numHiddenNetworks); 6898 mWifiMetrics.setNumPasspointNetworks(numPasspoint); 6899 } 6900 6901 private static String getLinkPropertiesSummary(LinkProperties lp) { 6902 List<String> attributes = new ArrayList<>(6); 6903 if (lp.hasIPv4Address()) { 6904 attributes.add("v4"); 6905 } 6906 if (lp.hasIPv4DefaultRoute()) { 6907 attributes.add("v4r"); 6908 } 6909 if (lp.hasIPv4DnsServer()) { 6910 attributes.add("v4dns"); 6911 } 6912 if (lp.hasGlobalIPv6Address()) { 6913 attributes.add("v6"); 6914 } 6915 if (lp.hasIPv6DefaultRoute()) { 6916 attributes.add("v6r"); 6917 } 6918 if (lp.hasIPv6DnsServer()) { 6919 attributes.add("v6dns"); 6920 } 6921 6922 return TextUtils.join(" ", attributes); 6923 } 6924 6925 /** 6926 * Gets the SSID from the WifiConfiguration pointed at by 'mTargetNetworkId' 6927 * This should match the network config framework is attempting to connect to. 6928 */ 6929 private String getTargetSsid() { 6930 WifiConfiguration currentConfig = mWifiConfigManager.getConfiguredNetwork(mTargetNetworkId); 6931 if (currentConfig != null) { 6932 return currentConfig.SSID; 6933 } 6934 return null; 6935 } 6936 6937 private void p2pSendMessage(int what) { 6938 if (mWifiP2pChannel != null) { 6939 mWifiP2pChannel.sendMessage(what); 6940 } 6941 } 6942 6943 private void p2pSendMessage(int what, int arg1) { 6944 if (mWifiP2pChannel != null) { 6945 mWifiP2pChannel.sendMessage(what, arg1); 6946 } 6947 } 6948 6949 /** 6950 * Check if there is any connection request for WiFi network. 6951 * Note, caller of this helper function must acquire mWifiReqCountLock. 6952 */ 6953 private boolean hasConnectionRequests() { 6954 return mConnectionReqCount > 0 || mUntrustedReqCount > 0; 6955 } 6956 6957 /** 6958 * Returns whether CMD_IP_REACHABILITY_LOST events should trigger disconnects. 6959 */ 6960 public boolean getIpReachabilityDisconnectEnabled() { 6961 return mIpReachabilityDisconnectEnabled; 6962 } 6963 6964 /** 6965 * Sets whether CMD_IP_REACHABILITY_LOST events should trigger disconnects. 6966 */ 6967 public void setIpReachabilityDisconnectEnabled(boolean enabled) { 6968 mIpReachabilityDisconnectEnabled = enabled; 6969 } 6970} 6971