| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.net.wifi; |
| |
| import static android.net.wifi.WifiManager.WIFI_STATE_DISABLED; |
| import static android.net.wifi.WifiManager.WIFI_STATE_DISABLING; |
| import static android.net.wifi.WifiManager.WIFI_STATE_ENABLED; |
| import static android.net.wifi.WifiManager.WIFI_STATE_ENABLING; |
| import static android.net.wifi.WifiManager.WIFI_STATE_UNKNOWN; |
| |
| /** |
| * TODO: |
| * Deprecate WIFI_STATE_UNKNOWN |
| */ |
| import static android.net.wifi.WifiManager.WIFI_AP_STATE_DISABLED; |
| import static android.net.wifi.WifiManager.WIFI_AP_STATE_DISABLING; |
| import static android.net.wifi.WifiManager.WIFI_AP_STATE_ENABLED; |
| import static android.net.wifi.WifiManager.WIFI_AP_STATE_ENABLING; |
| import static android.net.wifi.WifiManager.WIFI_AP_STATE_FAILED; |
| |
| import android.app.AlarmManager; |
| import android.app.PendingIntent; |
| import android.app.backup.IBackupManager; |
| import android.bluetooth.BluetoothAdapter; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.PackageManager; |
| import android.database.ContentObserver; |
| import android.net.ConnectivityManager; |
| import android.net.DhcpInfo; |
| import android.net.DhcpInfoInternal; |
| import android.net.DhcpStateMachine; |
| import android.net.InterfaceConfiguration; |
| import android.net.LinkAddress; |
| import android.net.LinkProperties; |
| import android.net.NetworkInfo; |
| import android.net.NetworkInfo.DetailedState; |
| import android.net.NetworkUtils; |
| import android.net.wifi.RssiPacketCountInfo; |
| import android.net.wifi.WpsResult.Status; |
| import android.net.wifi.p2p.WifiP2pManager; |
| import android.net.wifi.p2p.WifiP2pService; |
| import android.net.wifi.StateChangeResult; |
| import android.os.Binder; |
| import android.os.IBinder; |
| import android.os.INetworkManagementService; |
| import android.os.Message; |
| import android.os.Messenger; |
| import android.os.PowerManager; |
| import android.os.Process; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.SystemClock; |
| import android.os.SystemProperties; |
| import android.os.UserHandle; |
| import android.os.WorkSource; |
| import android.provider.Settings; |
| import android.util.EventLog; |
| import android.util.Log; |
| import android.util.LruCache; |
| |
| import com.android.internal.app.IBatteryStats; |
| import com.android.internal.util.AsyncChannel; |
| import com.android.internal.util.Protocol; |
| import com.android.internal.util.State; |
| import com.android.internal.util.StateMachine; |
| |
| import java.net.InetAddress; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.regex.Pattern; |
| |
| /** |
| * Track the state of Wifi connectivity. All event handling is done here, |
| * and all changes in connectivity state are initiated here. |
| * |
| * Wi-Fi now supports three modes of operation: Client, SoftAp and p2p |
| * In the current implementation, we support concurrent wifi p2p and wifi operation. |
| * The WifiStateMachine handles SoftAp and Client operations while WifiP2pService |
| * handles p2p operation. |
| * |
| * @hide |
| */ |
| public class WifiStateMachine extends StateMachine { |
| |
| private static final String TAG = "WifiStateMachine"; |
| private static final String NETWORKTYPE = "WIFI"; |
| private static final boolean DBG = false; |
| |
| private WifiMonitor mWifiMonitor; |
| private WifiNative mWifiNative; |
| private WifiConfigStore mWifiConfigStore; |
| private INetworkManagementService mNwService; |
| private ConnectivityManager mCm; |
| |
| private final boolean mP2pSupported; |
| private final String mPrimaryDeviceType; |
| |
| /* Scan results handling */ |
| private List<ScanResult> mScanResults = new ArrayList<ScanResult>(); |
| private static final Pattern scanResultPattern = Pattern.compile("\t+"); |
| private static final int SCAN_RESULT_CACHE_SIZE = 80; |
| private final LruCache<String, ScanResult> mScanResultCache; |
| |
| /* Chipset supports background scan */ |
| private final boolean mBackgroundScanSupported; |
| |
| private String mInterfaceName; |
| /* Tethering interface could be seperate from wlan interface */ |
| private String mTetherInterfaceName; |
| |
| private int mLastSignalLevel = -1; |
| private String mLastBssid; |
| private int mLastNetworkId; |
| private boolean mEnableRssiPolling = false; |
| private boolean mEnableBackgroundScan = false; |
| private int mRssiPollToken = 0; |
| private int mReconnectCount = 0; |
| private boolean mIsScanMode = false; |
| private boolean mScanResultIsPending = false; |
| /* Tracks if the current scan settings are active */ |
| private boolean mSetScanActive = false; |
| /* High perf mode is true if an app has held a high perf Wifi Lock */ |
| private boolean mHighPerfMode = false; |
| /* Tracks if user has disabled suspend optimizations through settings */ |
| private AtomicBoolean mSuspendOptEnabled = new AtomicBoolean(true); |
| |
| private boolean mBluetoothConnectionActive = false; |
| |
| private BroadcastReceiver mScreenReceiver; |
| private IntentFilter mScreenFilter; |
| private PowerManager.WakeLock mSuspendWakeLock; |
| |
| /** |
| * Interval in milliseconds between polling for RSSI |
| * and linkspeed information |
| */ |
| private static final int POLL_RSSI_INTERVAL_MSECS = 3000; |
| |
| /** |
| * Delay between supplicant restarts upon failure to establish connection |
| */ |
| private static final int SUPPLICANT_RESTART_INTERVAL_MSECS = 5000; |
| |
| /** |
| * Number of times we attempt to restart supplicant |
| */ |
| private static final int SUPPLICANT_RESTART_TRIES = 5; |
| |
| private int mSupplicantRestartCount = 0; |
| /* Tracks sequence number on stop failure message */ |
| private int mSupplicantStopFailureToken = 0; |
| |
| /** |
| * Tether state change notification time out |
| */ |
| private static final int TETHER_NOTIFICATION_TIME_OUT_MSECS = 5000; |
| |
| /* Tracks sequence number on a tether notification time out */ |
| private int mTetherToken = 0; |
| |
| /** |
| * Driver start time out. |
| */ |
| private static final int DRIVER_START_TIME_OUT_MSECS = 10000; |
| |
| /* Tracks sequence number on a driver time out */ |
| private int mDriverStartToken = 0; |
| |
| private LinkProperties mLinkProperties; |
| |
| /* Tracks sequence number on a periodic scan message */ |
| private int mPeriodicScanToken = 0; |
| |
| // Wakelock held during wifi start/stop and driver load/unload |
| private PowerManager.WakeLock mWakeLock; |
| |
| private Context mContext; |
| |
| private DhcpInfoInternal mDhcpInfoInternal; |
| private WifiInfo mWifiInfo; |
| private NetworkInfo mNetworkInfo; |
| private SupplicantStateTracker mSupplicantStateTracker; |
| private DhcpStateMachine mDhcpStateMachine; |
| |
| private AlarmManager mAlarmManager; |
| private PendingIntent mScanIntent; |
| private PendingIntent mDriverStopIntent; |
| |
| /* Tracks current frequency mode */ |
| private AtomicInteger mFrequencyBand = new AtomicInteger(WifiManager.WIFI_FREQUENCY_BAND_AUTO); |
| |
| /* Tracks if we are filtering Multicast v4 packets. Default is to filter. */ |
| private AtomicBoolean mFilteringMulticastV4Packets = new AtomicBoolean(true); |
| |
| // Channel for sending replies. |
| private AsyncChannel mReplyChannel = new AsyncChannel(); |
| |
| private WifiP2pManager mWifiP2pManager; |
| //Used to initiate a connection with WifiP2pService |
| private AsyncChannel mWifiP2pChannel = new AsyncChannel(); |
| private AsyncChannel mWifiApConfigChannel = new AsyncChannel(); |
| |
| // Event log tags (must be in sync with event-log-tags) |
| private static final int EVENTLOG_WIFI_STATE_CHANGED = 50021; |
| private static final int EVENTLOG_WIFI_EVENT_HANDLED = 50022; |
| private static final int EVENTLOG_SUPPLICANT_STATE_CHANGED = 50023; |
| |
| /* The base for wifi message types */ |
| static final int BASE = Protocol.BASE_WIFI; |
| /* Load the driver */ |
| static final int CMD_LOAD_DRIVER = BASE + 1; |
| /* Unload the driver */ |
| static final int CMD_UNLOAD_DRIVER = BASE + 2; |
| /* Indicates driver load succeeded */ |
| static final int CMD_LOAD_DRIVER_SUCCESS = BASE + 3; |
| /* Indicates driver load failed */ |
| static final int CMD_LOAD_DRIVER_FAILURE = BASE + 4; |
| /* Indicates driver unload succeeded */ |
| static final int CMD_UNLOAD_DRIVER_SUCCESS = BASE + 5; |
| /* Indicates driver unload failed */ |
| static final int CMD_UNLOAD_DRIVER_FAILURE = BASE + 6; |
| |
| /* Start the supplicant */ |
| static final int CMD_START_SUPPLICANT = BASE + 11; |
| /* Stop the supplicant */ |
| static final int CMD_STOP_SUPPLICANT = BASE + 12; |
| /* Start the driver */ |
| static final int CMD_START_DRIVER = BASE + 13; |
| /* Stop the driver */ |
| static final int CMD_STOP_DRIVER = BASE + 14; |
| /* Indicates Static IP succeded */ |
| static final int CMD_STATIC_IP_SUCCESS = BASE + 15; |
| /* Indicates Static IP failed */ |
| static final int CMD_STATIC_IP_FAILURE = BASE + 16; |
| /* Indicates supplicant stop failed */ |
| static final int CMD_STOP_SUPPLICANT_FAILED = BASE + 17; |
| /* Delayed stop to avoid shutting down driver too quick*/ |
| static final int CMD_DELAYED_STOP_DRIVER = BASE + 18; |
| /* A delayed message sent to start driver when it fail to come up */ |
| static final int CMD_DRIVER_START_TIMED_OUT = BASE + 19; |
| /* Ready to switch to network as default */ |
| static final int CMD_CAPTIVE_CHECK_COMPLETE = BASE + 20; |
| |
| /* Start the soft access point */ |
| static final int CMD_START_AP = BASE + 21; |
| /* Indicates soft ap start succeded */ |
| static final int CMD_START_AP_SUCCESS = BASE + 22; |
| /* Indicates soft ap start failed */ |
| static final int CMD_START_AP_FAILURE = BASE + 23; |
| /* Stop the soft access point */ |
| static final int CMD_STOP_AP = BASE + 24; |
| /* Set the soft access point configuration */ |
| static final int CMD_SET_AP_CONFIG = BASE + 25; |
| /* Soft access point configuration set completed */ |
| static final int CMD_SET_AP_CONFIG_COMPLETED = BASE + 26; |
| /* Request the soft access point configuration */ |
| static final int CMD_REQUEST_AP_CONFIG = BASE + 27; |
| /* Response to access point configuration request */ |
| static final int CMD_RESPONSE_AP_CONFIG = BASE + 28; |
| /* Invoked when getting a tether state change notification */ |
| static final int CMD_TETHER_STATE_CHANGE = BASE + 29; |
| /* A delayed message sent to indicate tether state change failed to arrive */ |
| static final int CMD_TETHER_NOTIFICATION_TIMED_OUT = BASE + 30; |
| |
| static final int CMD_BLUETOOTH_ADAPTER_STATE_CHANGE = BASE + 31; |
| |
| /* Supplicant commands */ |
| /* Is supplicant alive ? */ |
| static final int CMD_PING_SUPPLICANT = BASE + 51; |
| /* Add/update a network configuration */ |
| static final int CMD_ADD_OR_UPDATE_NETWORK = BASE + 52; |
| /* Delete a network */ |
| static final int CMD_REMOVE_NETWORK = BASE + 53; |
| /* Enable a network. The device will attempt a connection to the given network. */ |
| static final int CMD_ENABLE_NETWORK = BASE + 54; |
| /* Enable all networks */ |
| static final int CMD_ENABLE_ALL_NETWORKS = BASE + 55; |
| /* Blacklist network. De-prioritizes the given BSSID for connection. */ |
| static final int CMD_BLACKLIST_NETWORK = BASE + 56; |
| /* Clear the blacklist network list */ |
| static final int CMD_CLEAR_BLACKLIST = BASE + 57; |
| /* Save configuration */ |
| static final int CMD_SAVE_CONFIG = BASE + 58; |
| /* Get configured networks*/ |
| static final int CMD_GET_CONFIGURED_NETWORKS = BASE + 59; |
| |
| /* Supplicant commands after driver start*/ |
| /* Initiate a scan */ |
| static final int CMD_START_SCAN = BASE + 71; |
| /* Set scan mode. CONNECT_MODE or SCAN_ONLY_MODE */ |
| static final int CMD_SET_SCAN_MODE = BASE + 72; |
| /* Set scan type. SCAN_ACTIVE or SCAN_PASSIVE */ |
| static final int CMD_SET_SCAN_TYPE = BASE + 73; |
| /* Disconnect from a network */ |
| static final int CMD_DISCONNECT = BASE + 74; |
| /* Reconnect to a network */ |
| static final int CMD_RECONNECT = BASE + 75; |
| /* Reassociate to a network */ |
| static final int CMD_REASSOCIATE = BASE + 76; |
| /* Controls suspend mode optimizations |
| * |
| * When high perf mode is enabled, suspend mode optimizations are disabled |
| * |
| * When high perf mode is disabled, suspend mode optimizations are enabled |
| * |
| * Suspend mode optimizations include: |
| * - packet filtering |
| * - turn off roaming |
| * - DTIM wake up settings |
| */ |
| static final int CMD_SET_HIGH_PERF_MODE = BASE + 77; |
| /* Set the country code */ |
| static final int CMD_SET_COUNTRY_CODE = BASE + 80; |
| /* Enables RSSI poll */ |
| static final int CMD_ENABLE_RSSI_POLL = BASE + 82; |
| /* RSSI poll */ |
| static final int CMD_RSSI_POLL = BASE + 83; |
| /* Set up packet filtering */ |
| static final int CMD_START_PACKET_FILTERING = BASE + 84; |
| /* Clear packet filter */ |
| static final int CMD_STOP_PACKET_FILTERING = BASE + 85; |
| /* Set suspend mode optimizations in the driver */ |
| static final int CMD_SET_SUSPEND_OPTIMIZATIONS = BASE + 86; |
| /* Clear suspend mode optimizations in the driver */ |
| static final int CMD_CLEAR_SUSPEND_OPTIMIZATIONS = BASE + 87; |
| /* When there are no saved networks, we do a periodic scan to notify user of |
| * an open network */ |
| static final int CMD_NO_NETWORKS_PERIODIC_SCAN = BASE + 88; |
| |
| /* arg1 values to CMD_STOP_PACKET_FILTERING and CMD_START_PACKET_FILTERING */ |
| static final int MULTICAST_V6 = 1; |
| static final int MULTICAST_V4 = 0; |
| |
| /* Set the frequency band */ |
| static final int CMD_SET_FREQUENCY_BAND = BASE + 90; |
| /* Enable background scan for configured networks */ |
| static final int CMD_ENABLE_BACKGROUND_SCAN = BASE + 91; |
| |
| /* Commands from/to the SupplicantStateTracker */ |
| /* Reset the supplicant state tracker */ |
| static final int CMD_RESET_SUPPLICANT_STATE = BASE + 111; |
| |
| /* P2p commands */ |
| public static final int CMD_ENABLE_P2P = BASE + 131; |
| public static final int CMD_DISABLE_P2P = BASE + 132; |
| |
| private static final int CONNECT_MODE = 1; |
| private static final int SCAN_ONLY_MODE = 2; |
| |
| private static final int SCAN_ACTIVE = 1; |
| private static final int SCAN_PASSIVE = 2; |
| |
| private static final int SUCCESS = 1; |
| private static final int FAILURE = -1; |
| |
| /* Phone in emergency call back mode */ |
| private static final int IN_ECM_STATE = 1; |
| private static final int NOT_IN_ECM_STATE = 0; |
| |
| /** |
| * The maximum number of times we will retry a connection to an access point |
| * for which we have failed in acquiring an IP address from DHCP. A value of |
| * N means that we will make N+1 connection attempts in all. |
| * <p> |
| * See {@link Settings.Secure#WIFI_MAX_DHCP_RETRY_COUNT}. This is the default |
| * value if a Settings value is not present. |
| */ |
| private static final int DEFAULT_MAX_DHCP_RETRIES = 9; |
| |
| /* Tracks if power save is enabled in driver */ |
| private boolean mPowerSaveEnabled = true;; |
| |
| /** |
| * Default framework scan interval in milliseconds. This is used in the scenario in which |
| * wifi chipset does not support background scanning to set up a |
| * periodic wake up scan so that the device can connect to a new access |
| * point on the move. {@link Settings.Secure#WIFI_FRAMEWORK_SCAN_INTERVAL_MS} can |
| * override this. |
| */ |
| private final int mDefaultFrameworkScanIntervalMs; |
| |
| /** |
| * Supplicant scan interval in milliseconds. |
| * Comes from {@link Settings.Secure#WIFI_SUPPLICANT_SCAN_INTERVAL_MS} or |
| * from the default config if the setting is not set |
| */ |
| private long mSupplicantScanIntervalMs; |
| |
| /** |
| * Minimum time interval between enabling all networks. |
| * A device can end up repeatedly connecting to a bad network on screen on/off toggle |
| * due to enabling every time. We add a threshold to avoid this. |
| */ |
| private static final int MIN_INTERVAL_ENABLE_ALL_NETWORKS_MS = 10 * 60 * 1000; /* 10 minutes */ |
| private long mLastEnableAllNetworksTime; |
| |
| /** |
| * Starting and shutting down driver too quick causes problems leading to driver |
| * being in a bad state. Delay driver stop. |
| */ |
| private final int mDriverStopDelayMs; |
| private int mDelayedStopCounter; |
| private boolean mInDelayedStop = false; |
| |
| private static final int MIN_RSSI = -200; |
| private static final int MAX_RSSI = 256; |
| |
| /* Default parent state */ |
| private State mDefaultState = new DefaultState(); |
| /* Temporary initial state */ |
| private State mInitialState = new InitialState(); |
| /* Unloading the driver */ |
| private State mDriverUnloadingState = new DriverUnloadingState(); |
| /* Loading the driver */ |
| private State mDriverUnloadedState = new DriverUnloadedState(); |
| /* Driver load/unload failed */ |
| private State mDriverFailedState = new DriverFailedState(); |
| /* Driver loading */ |
| private State mDriverLoadingState = new DriverLoadingState(); |
| /* Driver loaded */ |
| private State mDriverLoadedState = new DriverLoadedState(); |
| /* Driver loaded, waiting for supplicant to start */ |
| private State mSupplicantStartingState = new SupplicantStartingState(); |
| /* Driver loaded and supplicant ready */ |
| private State mSupplicantStartedState = new SupplicantStartedState(); |
| /* Waiting for supplicant to stop and monitor to exit */ |
| private State mSupplicantStoppingState = new SupplicantStoppingState(); |
| /* Driver start issued, waiting for completed event */ |
| private State mDriverStartingState = new DriverStartingState(); |
| /* Driver started */ |
| private State mDriverStartedState = new DriverStartedState(); |
| /* Driver stopping */ |
| private State mDriverStoppingState = new DriverStoppingState(); |
| /* Driver stopped */ |
| private State mDriverStoppedState = new DriverStoppedState(); |
| /* Scan for networks, no connection will be established */ |
| private State mScanModeState = new ScanModeState(); |
| /* Connecting to an access point */ |
| private State mConnectModeState = new ConnectModeState(); |
| /* Connected at 802.11 (L2) level */ |
| private State mL2ConnectedState = new L2ConnectedState(); |
| /* fetching IP after connection to access point (assoc+auth complete) */ |
| private State mObtainingIpState = new ObtainingIpState(); |
| /* Waiting for link quality verification to be complete */ |
| private State mVerifyingLinkState = new VerifyingLinkState(); |
| /* Waiting for captive portal check to be complete */ |
| private State mCaptivePortalCheckState = new CaptivePortalCheckState(); |
| /* Connected with IP addr */ |
| private State mConnectedState = new ConnectedState(); |
| /* disconnect issued, waiting for network disconnect confirmation */ |
| private State mDisconnectingState = new DisconnectingState(); |
| /* Network is not connected, supplicant assoc+auth is not complete */ |
| private State mDisconnectedState = new DisconnectedState(); |
| /* Waiting for WPS to be completed*/ |
| private State mWpsRunningState = new WpsRunningState(); |
| |
| /* Soft ap is starting up */ |
| private State mSoftApStartingState = new SoftApStartingState(); |
| /* Soft ap is running */ |
| private State mSoftApStartedState = new SoftApStartedState(); |
| /* Soft ap is running and we are waiting for tether notification */ |
| private State mTetheringState = new TetheringState(); |
| /* Soft ap is running and we are tethered through connectivity service */ |
| private State mTetheredState = new TetheredState(); |
| /* Waiting for untether confirmation to stop soft Ap */ |
| private State mSoftApStoppingState = new SoftApStoppingState(); |
| |
| private class TetherStateChange { |
| ArrayList<String> available; |
| ArrayList<String> active; |
| TetherStateChange(ArrayList<String> av, ArrayList<String> ac) { |
| available = av; |
| active = ac; |
| } |
| } |
| |
| |
| /** |
| * One of {@link WifiManager#WIFI_STATE_DISABLED}, |
| * {@link WifiManager#WIFI_STATE_DISABLING}, |
| * {@link WifiManager#WIFI_STATE_ENABLED}, |
| * {@link WifiManager#WIFI_STATE_ENABLING}, |
| * {@link WifiManager#WIFI_STATE_UNKNOWN} |
| * |
| */ |
| private final AtomicInteger mWifiState = new AtomicInteger(WIFI_STATE_DISABLED); |
| |
| /** |
| * One of {@link WifiManager#WIFI_AP_STATE_DISABLED}, |
| * {@link WifiManager#WIFI_AP_STATE_DISABLING}, |
| * {@link WifiManager#WIFI_AP_STATE_ENABLED}, |
| * {@link WifiManager#WIFI_AP_STATE_ENABLING}, |
| * {@link WifiManager#WIFI_AP_STATE_FAILED} |
| * |
| */ |
| private final AtomicInteger mWifiApState = new AtomicInteger(WIFI_AP_STATE_DISABLED); |
| |
| private final AtomicInteger mLastEnableUid = new AtomicInteger(Process.myUid()); |
| private final AtomicInteger mLastApEnableUid = new AtomicInteger(Process.myUid()); |
| |
| private static final int SCAN_REQUEST = 0; |
| private static final String ACTION_START_SCAN = |
| "com.android.server.WifiManager.action.START_SCAN"; |
| |
| private static final String DELAYED_STOP_COUNTER = "DelayedStopCounter"; |
| private static final int DRIVER_STOP_REQUEST = 0; |
| private static final String ACTION_DELAYED_DRIVER_STOP = |
| "com.android.server.WifiManager.action.DELAYED_DRIVER_STOP"; |
| |
| /** |
| * Keep track of whether WIFI is running. |
| */ |
| private boolean mIsRunning = false; |
| |
| /** |
| * Keep track of whether we last told the battery stats we had started. |
| */ |
| private boolean mReportedRunning = false; |
| |
| /** |
| * Most recently set source of starting WIFI. |
| */ |
| private final WorkSource mRunningWifiUids = new WorkSource(); |
| |
| /** |
| * The last reported UIDs that were responsible for starting WIFI. |
| */ |
| private final WorkSource mLastRunningWifiUids = new WorkSource(); |
| |
| private final IBatteryStats mBatteryStats; |
| |
| public WifiStateMachine(Context context, String wlanInterface) { |
| super(TAG); |
| |
| mContext = context; |
| mInterfaceName = wlanInterface; |
| |
| mNetworkInfo = new NetworkInfo(ConnectivityManager.TYPE_WIFI, 0, NETWORKTYPE, ""); |
| mBatteryStats = IBatteryStats.Stub.asInterface(ServiceManager.getService("batteryinfo")); |
| |
| IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE); |
| mNwService = INetworkManagementService.Stub.asInterface(b); |
| |
| mP2pSupported = mContext.getPackageManager().hasSystemFeature( |
| PackageManager.FEATURE_WIFI_DIRECT); |
| |
| mWifiNative = new WifiNative(mInterfaceName); |
| mWifiConfigStore = new WifiConfigStore(context, mWifiNative); |
| mWifiMonitor = new WifiMonitor(this, mWifiNative); |
| mDhcpInfoInternal = new DhcpInfoInternal(); |
| mWifiInfo = new WifiInfo(); |
| mSupplicantStateTracker = new SupplicantStateTracker(context, this, mWifiConfigStore, |
| getHandler()); |
| mLinkProperties = new LinkProperties(); |
| |
| WifiApConfigStore wifiApConfigStore = WifiApConfigStore.makeWifiApConfigStore( |
| context, getHandler()); |
| wifiApConfigStore.loadApConfiguration(); |
| mWifiApConfigChannel.connectSync(mContext, getHandler(), wifiApConfigStore.getMessenger()); |
| |
| mNetworkInfo.setIsAvailable(false); |
| mLinkProperties.clear(); |
| mLastBssid = null; |
| mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; |
| mLastSignalLevel = -1; |
| |
| mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE); |
| Intent scanIntent = new Intent(ACTION_START_SCAN, null); |
| mScanIntent = PendingIntent.getBroadcast(mContext, SCAN_REQUEST, scanIntent, 0); |
| |
| mDefaultFrameworkScanIntervalMs = mContext.getResources().getInteger( |
| com.android.internal.R.integer.config_wifi_framework_scan_interval); |
| |
| mDriverStopDelayMs = mContext.getResources().getInteger( |
| com.android.internal.R.integer.config_wifi_driver_stop_delay); |
| |
| mBackgroundScanSupported = mContext.getResources().getBoolean( |
| com.android.internal.R.bool.config_wifi_background_scan_support); |
| |
| mPrimaryDeviceType = mContext.getResources().getString( |
| com.android.internal.R.string.config_wifi_p2p_device_type); |
| |
| mSuspendOptEnabled.set(Settings.Secure.getInt(mContext.getContentResolver(), |
| Settings.Secure.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED, 1) == 1); |
| |
| mContext.registerReceiver( |
| new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| ArrayList<String> available = intent.getStringArrayListExtra( |
| ConnectivityManager.EXTRA_AVAILABLE_TETHER); |
| ArrayList<String> active = intent.getStringArrayListExtra( |
| ConnectivityManager.EXTRA_ACTIVE_TETHER); |
| sendMessage(CMD_TETHER_STATE_CHANGE, new TetherStateChange(available, active)); |
| } |
| },new IntentFilter(ConnectivityManager.ACTION_TETHER_STATE_CHANGED)); |
| |
| mContext.registerReceiver( |
| new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| startScan(false); |
| } |
| }, |
| new IntentFilter(ACTION_START_SCAN)); |
| |
| mScreenFilter = new IntentFilter(); |
| mScreenFilter.addAction(Intent.ACTION_SCREEN_ON); |
| mScreenFilter.addAction(Intent.ACTION_SCREEN_OFF); |
| mScreenReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| |
| if (action.equals(Intent.ACTION_SCREEN_ON)) { |
| enableRssiPolling(true); |
| if (mBackgroundScanSupported) { |
| enableBackgroundScanCommand(false); |
| } |
| enableAllNetworks(); |
| if (mSuspendOptEnabled.get()) { |
| if (DBG) log("Clear suspend optimizations"); |
| sendMessage(CMD_CLEAR_SUSPEND_OPTIMIZATIONS); |
| } |
| } else if (action.equals(Intent.ACTION_SCREEN_OFF)) { |
| enableRssiPolling(false); |
| if (mBackgroundScanSupported) { |
| enableBackgroundScanCommand(true); |
| } |
| if (mSuspendOptEnabled.get()) { |
| if (DBG) log("Enable suspend optimizations"); |
| //Allow 2s for suspend optimizations to be set |
| mSuspendWakeLock.acquire(2000); |
| sendMessage(CMD_SET_SUSPEND_OPTIMIZATIONS); |
| } |
| } |
| } |
| }; |
| |
| mContext.registerReceiver( |
| new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| int counter = intent.getIntExtra(DELAYED_STOP_COUNTER, 0); |
| sendMessage(obtainMessage(CMD_DELAYED_STOP_DRIVER, counter, 0)); |
| } |
| }, |
| new IntentFilter(ACTION_DELAYED_DRIVER_STOP)); |
| |
| mContext.getContentResolver().registerContentObserver(Settings.Secure.getUriFor( |
| Settings.Secure.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED), false, |
| new ContentObserver(getHandler()) { |
| @Override |
| public void onChange(boolean selfChange) { |
| mSuspendOptEnabled.set(Settings.Secure.getInt(mContext.getContentResolver(), |
| Settings.Secure.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED, 1) == 1); |
| } |
| }); |
| |
| mScanResultCache = new LruCache<String, ScanResult>(SCAN_RESULT_CACHE_SIZE); |
| |
| PowerManager powerManager = (PowerManager)mContext.getSystemService(Context.POWER_SERVICE); |
| mWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); |
| |
| mSuspendWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "WifiSuspend"); |
| mSuspendWakeLock.setReferenceCounted(false); |
| |
| addState(mDefaultState); |
| addState(mInitialState, mDefaultState); |
| addState(mDriverUnloadingState, mDefaultState); |
| addState(mDriverUnloadedState, mDefaultState); |
| addState(mDriverFailedState, mDriverUnloadedState); |
| addState(mDriverLoadingState, mDefaultState); |
| addState(mDriverLoadedState, mDefaultState); |
| addState(mSupplicantStartingState, mDefaultState); |
| addState(mSupplicantStartedState, mDefaultState); |
| addState(mDriverStartingState, mSupplicantStartedState); |
| addState(mDriverStartedState, mSupplicantStartedState); |
| addState(mScanModeState, mDriverStartedState); |
| addState(mConnectModeState, mDriverStartedState); |
| addState(mL2ConnectedState, mConnectModeState); |
| addState(mObtainingIpState, mL2ConnectedState); |
| addState(mVerifyingLinkState, mL2ConnectedState); |
| addState(mCaptivePortalCheckState, mL2ConnectedState); |
| addState(mConnectedState, mL2ConnectedState); |
| addState(mDisconnectingState, mConnectModeState); |
| addState(mDisconnectedState, mConnectModeState); |
| addState(mWpsRunningState, mConnectModeState); |
| addState(mDriverStoppingState, mSupplicantStartedState); |
| addState(mDriverStoppedState, mSupplicantStartedState); |
| addState(mSupplicantStoppingState, mDefaultState); |
| addState(mSoftApStartingState, mDefaultState); |
| addState(mSoftApStartedState, mDefaultState); |
| addState(mTetheringState, mSoftApStartedState); |
| addState(mTetheredState, mSoftApStartedState); |
| addState(mSoftApStoppingState, mDefaultState); |
| |
| setInitialState(mInitialState); |
| |
| setLogRecSize(100); |
| if (DBG) setDbg(true); |
| |
| //start the state machine |
| start(); |
| } |
| |
| /********************************************************* |
| * Methods exposed for public use |
| ********************************************************/ |
| |
| public Messenger getMessenger() { |
| return new Messenger(getHandler()); |
| } |
| /** |
| * TODO: doc |
| */ |
| public boolean syncPingSupplicant(AsyncChannel channel) { |
| Message resultMsg = channel.sendMessageSynchronously(CMD_PING_SUPPLICANT); |
| boolean result = (resultMsg.arg1 != FAILURE); |
| resultMsg.recycle(); |
| return result; |
| } |
| |
| /** |
| * TODO: doc |
| */ |
| public void startScan(boolean forceActive) { |
| sendMessage(obtainMessage(CMD_START_SCAN, forceActive ? |
| SCAN_ACTIVE : SCAN_PASSIVE, 0)); |
| } |
| |
| /** |
| * TODO: doc |
| */ |
| public void setWifiEnabled(boolean enable) { |
| mLastEnableUid.set(Binder.getCallingUid()); |
| if (enable) { |
| /* Argument is the state that is entered prior to load */ |
| sendMessage(obtainMessage(CMD_LOAD_DRIVER, WIFI_STATE_ENABLING, 0)); |
| sendMessage(CMD_START_SUPPLICANT); |
| } else { |
| sendMessage(CMD_STOP_SUPPLICANT); |
| /* Argument is the state that is entered upon success */ |
| sendMessage(obtainMessage(CMD_UNLOAD_DRIVER, WIFI_STATE_DISABLED, 0)); |
| } |
| } |
| |
| /** |
| * TODO: doc |
| */ |
| public void setWifiApEnabled(WifiConfiguration wifiConfig, boolean enable) { |
| mLastApEnableUid.set(Binder.getCallingUid()); |
| if (enable) { |
| /* Argument is the state that is entered prior to load */ |
| sendMessage(obtainMessage(CMD_LOAD_DRIVER, WIFI_AP_STATE_ENABLING, 0)); |
| sendMessage(obtainMessage(CMD_START_AP, wifiConfig)); |
| } else { |
| sendMessage(CMD_STOP_AP); |
| /* Argument is the state that is entered upon success */ |
| sendMessage(obtainMessage(CMD_UNLOAD_DRIVER, WIFI_AP_STATE_DISABLED, 0)); |
| } |
| } |
| |
| public void setWifiApConfiguration(WifiConfiguration config) { |
| mWifiApConfigChannel.sendMessage(CMD_SET_AP_CONFIG, config); |
| } |
| |
| public WifiConfiguration syncGetWifiApConfiguration() { |
| Message resultMsg = mWifiApConfigChannel.sendMessageSynchronously(CMD_REQUEST_AP_CONFIG); |
| WifiConfiguration ret = (WifiConfiguration) resultMsg.obj; |
| resultMsg.recycle(); |
| return ret; |
| } |
| |
| /** |
| * TODO: doc |
| */ |
| public int syncGetWifiState() { |
| return mWifiState.get(); |
| } |
| |
| /** |
| * TODO: doc |
| */ |
| public String syncGetWifiStateByName() { |
| switch (mWifiState.get()) { |
| case WIFI_STATE_DISABLING: |
| return "disabling"; |
| case WIFI_STATE_DISABLED: |
| return "disabled"; |
| case WIFI_STATE_ENABLING: |
| return "enabling"; |
| case WIFI_STATE_ENABLED: |
| return "enabled"; |
| case WIFI_STATE_UNKNOWN: |
| return "unknown state"; |
| default: |
| return "[invalid state]"; |
| } |
| } |
| |
| /** |
| * TODO: doc |
| */ |
| public int syncGetWifiApState() { |
| return mWifiApState.get(); |
| } |
| |
| /** |
| * TODO: doc |
| */ |
| public String syncGetWifiApStateByName() { |
| switch (mWifiApState.get()) { |
| case WIFI_AP_STATE_DISABLING: |
| return "disabling"; |
| case WIFI_AP_STATE_DISABLED: |
| return "disabled"; |
| case WIFI_AP_STATE_ENABLING: |
| return "enabling"; |
| case WIFI_AP_STATE_ENABLED: |
| return "enabled"; |
| case WIFI_AP_STATE_FAILED: |
| return "failed"; |
| default: |
| return "[invalid state]"; |
| } |
| } |
| |
| /** |
| * Get status information for the current connection, if any. |
| * @return a {@link WifiInfo} object containing information about the current connection |
| * |
| */ |
| public WifiInfo syncRequestConnectionInfo() { |
| return mWifiInfo; |
| } |
| |
| public DhcpInfo syncGetDhcpInfo() { |
| synchronized (mDhcpInfoInternal) { |
| return mDhcpInfoInternal.makeDhcpInfo(); |
| } |
| } |
| |
| /** |
| * TODO: doc |
| */ |
| public void setDriverStart(boolean enable, boolean ecm) { |
| if (enable) { |
| sendMessage(CMD_START_DRIVER); |
| } else { |
| sendMessage(obtainMessage(CMD_STOP_DRIVER, ecm ? IN_ECM_STATE : NOT_IN_ECM_STATE, 0)); |
| } |
| } |
| |
| public void captivePortalCheckComplete() { |
| sendMessage(obtainMessage(CMD_CAPTIVE_CHECK_COMPLETE)); |
| } |
| |
| /** |
| * TODO: doc |
| */ |
| public void setScanOnlyMode(boolean enable) { |
| if (enable) { |
| sendMessage(obtainMessage(CMD_SET_SCAN_MODE, SCAN_ONLY_MODE, 0)); |
| } else { |
| sendMessage(obtainMessage(CMD_SET_SCAN_MODE, CONNECT_MODE, 0)); |
| } |
| } |
| |
| /** |
| * TODO: doc |
| */ |
| public void setScanType(boolean active) { |
| if (active) { |
| sendMessage(obtainMessage(CMD_SET_SCAN_TYPE, SCAN_ACTIVE, 0)); |
| } else { |
| sendMessage(obtainMessage(CMD_SET_SCAN_TYPE, SCAN_PASSIVE, 0)); |
| } |
| } |
| |
| /** |
| * TODO: doc |
| */ |
| public List<ScanResult> syncGetScanResultsList() { |
| synchronized (mScanResultCache) { |
| List<ScanResult> scanList = new ArrayList<ScanResult>(); |
| for(ScanResult result: mScanResults) { |
| scanList.add(new ScanResult(result)); |
| } |
| return scanList; |
| } |
| } |
| |
| /** |
| * Disconnect from Access Point |
| */ |
| public void disconnectCommand() { |
| sendMessage(CMD_DISCONNECT); |
| } |
| |
| /** |
| * Initiate a reconnection to AP |
| */ |
| public void reconnectCommand() { |
| sendMessage(CMD_RECONNECT); |
| } |
| |
| /** |
| * Initiate a re-association to AP |
| */ |
| public void reassociateCommand() { |
| sendMessage(CMD_REASSOCIATE); |
| } |
| |
| /** |
| * Add a network synchronously |
| * |
| * @return network id of the new network |
| */ |
| public int syncAddOrUpdateNetwork(AsyncChannel channel, WifiConfiguration config) { |
| Message resultMsg = channel.sendMessageSynchronously(CMD_ADD_OR_UPDATE_NETWORK, config); |
| int result = resultMsg.arg1; |
| resultMsg.recycle(); |
| return result; |
| } |
| |
| public List<WifiConfiguration> syncGetConfiguredNetworks(AsyncChannel channel) { |
| Message resultMsg = channel.sendMessageSynchronously(CMD_GET_CONFIGURED_NETWORKS); |
| List<WifiConfiguration> result = (List<WifiConfiguration>) resultMsg.obj; |
| resultMsg.recycle(); |
| return result; |
| } |
| |
| /** |
| * Delete a network |
| * |
| * @param networkId id of the network to be removed |
| */ |
| public boolean syncRemoveNetwork(AsyncChannel channel, int networkId) { |
| Message resultMsg = channel.sendMessageSynchronously(CMD_REMOVE_NETWORK, networkId); |
| boolean result = (resultMsg.arg1 != FAILURE); |
| resultMsg.recycle(); |
| return result; |
| } |
| |
| /** |
| * Enable a network |
| * |
| * @param netId network id of the network |
| * @param disableOthers true, if all other networks have to be disabled |
| * @return {@code true} if the operation succeeds, {@code false} otherwise |
| */ |
| public boolean syncEnableNetwork(AsyncChannel channel, int netId, boolean disableOthers) { |
| Message resultMsg = channel.sendMessageSynchronously(CMD_ENABLE_NETWORK, netId, |
| disableOthers ? 1 : 0); |
| boolean result = (resultMsg.arg1 != FAILURE); |
| resultMsg.recycle(); |
| return result; |
| } |
| |
| /** |
| * Disable a network |
| * |
| * @param netId network id of the network |
| * @return {@code true} if the operation succeeds, {@code false} otherwise |
| */ |
| public boolean syncDisableNetwork(AsyncChannel channel, int netId) { |
| Message resultMsg = channel.sendMessageSynchronously(WifiManager.DISABLE_NETWORK, netId); |
| boolean result = (resultMsg.arg1 != WifiManager.DISABLE_NETWORK_FAILED); |
| resultMsg.recycle(); |
| return result; |
| } |
| |
| /** |
| * Blacklist a BSSID. This will avoid the AP if there are |
| * alternate APs to connect |
| * |
| * @param bssid BSSID of the network |
| */ |
| public void addToBlacklist(String bssid) { |
| sendMessage(obtainMessage(CMD_BLACKLIST_NETWORK, bssid)); |
| } |
| |
| /** |
| * Clear the blacklist list |
| * |
| */ |
| public void clearBlacklist() { |
| sendMessage(obtainMessage(CMD_CLEAR_BLACKLIST)); |
| } |
| |
| public void enableRssiPolling(boolean enabled) { |
| sendMessage(obtainMessage(CMD_ENABLE_RSSI_POLL, enabled ? 1 : 0, 0)); |
| } |
| |
| public void enableBackgroundScanCommand(boolean enabled) { |
| sendMessage(obtainMessage(CMD_ENABLE_BACKGROUND_SCAN, enabled ? 1 : 0, 0)); |
| } |
| |
| public void enableAllNetworks() { |
| sendMessage(CMD_ENABLE_ALL_NETWORKS); |
| } |
| |
| /** |
| * Start filtering Multicast v4 packets |
| */ |
| public void startFilteringMulticastV4Packets() { |
| mFilteringMulticastV4Packets.set(true); |
| sendMessage(obtainMessage(CMD_START_PACKET_FILTERING, MULTICAST_V4, 0)); |
| } |
| |
| /** |
| * Stop filtering Multicast v4 packets |
| */ |
| public void stopFilteringMulticastV4Packets() { |
| mFilteringMulticastV4Packets.set(false); |
| sendMessage(obtainMessage(CMD_STOP_PACKET_FILTERING, MULTICAST_V4, 0)); |
| } |
| |
| /** |
| * Start filtering Multicast v4 packets |
| */ |
| public void startFilteringMulticastV6Packets() { |
| sendMessage(obtainMessage(CMD_START_PACKET_FILTERING, MULTICAST_V6, 0)); |
| } |
| |
| /** |
| * Stop filtering Multicast v4 packets |
| */ |
| public void stopFilteringMulticastV6Packets() { |
| sendMessage(obtainMessage(CMD_STOP_PACKET_FILTERING, MULTICAST_V6, 0)); |
| } |
| |
| /** |
| * Set high performance mode of operation. |
| * Enabling would set active power mode and disable suspend optimizations; |
| * disabling would set auto power mode and enable suspend optimizations |
| * @param enable true if enable, false otherwise |
| */ |
| public void setHighPerfModeEnabled(boolean enable) { |
| sendMessage(obtainMessage(CMD_SET_HIGH_PERF_MODE, enable ? 1 : 0, 0)); |
| } |
| |
| /** |
| * Set the country code |
| * @param countryCode following ISO 3166 format |
| * @param persist {@code true} if the setting should be remembered. |
| */ |
| public void setCountryCode(String countryCode, boolean persist) { |
| if (persist) { |
| Settings.Secure.putString(mContext.getContentResolver(), |
| Settings.Secure.WIFI_COUNTRY_CODE, |
| countryCode); |
| } |
| sendMessage(obtainMessage(CMD_SET_COUNTRY_CODE, countryCode)); |
| } |
| |
| /** |
| * Set the operational frequency band |
| * @param band |
| * @param persist {@code true} if the setting should be remembered. |
| */ |
| public void setFrequencyBand(int band, boolean persist) { |
| if (persist) { |
| Settings.Secure.putInt(mContext.getContentResolver(), |
| Settings.Secure.WIFI_FREQUENCY_BAND, |
| band); |
| } |
| sendMessage(obtainMessage(CMD_SET_FREQUENCY_BAND, band, 0)); |
| } |
| |
| /** |
| * Returns the operational frequency band |
| */ |
| public int getFrequencyBand() { |
| return mFrequencyBand.get(); |
| } |
| |
| /** |
| * Returns the wifi configuration file |
| */ |
| public String getConfigFile() { |
| return mWifiConfigStore.getConfigFile(); |
| } |
| |
| /** |
| * Send a message indicating bluetooth adapter connection state changed |
| */ |
| public void sendBluetoothAdapterStateChange(int state) { |
| sendMessage(obtainMessage(CMD_BLUETOOTH_ADAPTER_STATE_CHANGE, state, 0)); |
| } |
| |
| /** |
| * Save configuration on supplicant |
| * |
| * @return {@code true} if the operation succeeds, {@code false} otherwise |
| * |
| * TODO: deprecate this |
| */ |
| public boolean syncSaveConfig(AsyncChannel channel) { |
| Message resultMsg = channel.sendMessageSynchronously(CMD_SAVE_CONFIG); |
| boolean result = (resultMsg.arg1 != FAILURE); |
| resultMsg.recycle(); |
| return result; |
| } |
| |
| public void updateBatteryWorkSource(WorkSource newSource) { |
| synchronized (mRunningWifiUids) { |
| try { |
| if (newSource != null) { |
| mRunningWifiUids.set(newSource); |
| } |
| if (mIsRunning) { |
| if (mReportedRunning) { |
| // If the work source has changed since last time, need |
| // to remove old work from battery stats. |
| if (mLastRunningWifiUids.diff(mRunningWifiUids)) { |
| mBatteryStats.noteWifiRunningChanged(mLastRunningWifiUids, |
| mRunningWifiUids); |
| mLastRunningWifiUids.set(mRunningWifiUids); |
| } |
| } else { |
| // Now being started, report it. |
| mBatteryStats.noteWifiRunning(mRunningWifiUids); |
| mLastRunningWifiUids.set(mRunningWifiUids); |
| mReportedRunning = true; |
| } |
| } else { |
| if (mReportedRunning) { |
| // Last reported we were running, time to stop. |
| mBatteryStats.noteWifiStopped(mLastRunningWifiUids); |
| mLastRunningWifiUids.clear(); |
| mReportedRunning = false; |
| } |
| } |
| mWakeLock.setWorkSource(newSource); |
| } catch (RemoteException ignore) { |
| } |
| } |
| } |
| |
| @Override |
| public String toString() { |
| StringBuffer sb = new StringBuffer(); |
| String LS = System.getProperty("line.separator"); |
| sb.append("current HSM state: ").append(getCurrentState().getName()).append(LS); |
| sb.append("mLinkProperties ").append(mLinkProperties).append(LS); |
| sb.append("mWifiInfo ").append(mWifiInfo).append(LS); |
| sb.append("mDhcpInfoInternal ").append(mDhcpInfoInternal).append(LS); |
| sb.append("mNetworkInfo ").append(mNetworkInfo).append(LS); |
| sb.append("mLastSignalLevel ").append(mLastSignalLevel).append(LS); |
| sb.append("mLastBssid ").append(mLastBssid).append(LS); |
| sb.append("mLastNetworkId ").append(mLastNetworkId).append(LS); |
| sb.append("mReconnectCount ").append(mReconnectCount).append(LS); |
| sb.append("mIsScanMode ").append(mIsScanMode).append(LS); |
| sb.append("mHighPerfMode").append(mHighPerfMode).append(LS); |
| sb.append("mSuspendOptEnabled").append(mSuspendOptEnabled).append(LS); |
| sb.append("Supplicant status").append(LS) |
| .append(mWifiNative.status()).append(LS).append(LS); |
| |
| sb.append(mWifiConfigStore.dump()); |
| return sb.toString(); |
| } |
| |
| @Override |
| protected boolean recordLogRec(Message msg) { |
| //Ignore screen on/off & common messages when driver has started |
| if (getCurrentState() == mConnectedState || getCurrentState() == mDisconnectedState) { |
| switch (msg.what) { |
| case CMD_LOAD_DRIVER: |
| case CMD_START_SUPPLICANT: |
| case CMD_START_DRIVER: |
| case CMD_SET_SCAN_MODE: |
| case CMD_SET_HIGH_PERF_MODE: |
| case CMD_SET_SUSPEND_OPTIMIZATIONS: |
| case CMD_CLEAR_SUSPEND_OPTIMIZATIONS: |
| case CMD_ENABLE_BACKGROUND_SCAN: |
| case CMD_ENABLE_ALL_NETWORKS: |
| return false; |
| } |
| } |
| |
| switch (msg.what) { |
| case CMD_START_SCAN: |
| case CMD_ENABLE_RSSI_POLL: |
| case CMD_RSSI_POLL: |
| case CMD_DELAYED_STOP_DRIVER: |
| case WifiMonitor.SCAN_RESULTS_EVENT: |
| case WifiManager.RSSI_PKTCNT_FETCH: |
| return false; |
| default: |
| return true; |
| } |
| } |
| |
| /********************************************************* |
| * Internal private functions |
| ********************************************************/ |
| |
| private void checkAndSetConnectivityInstance() { |
| if (mCm == null) { |
| mCm = (ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE); |
| } |
| } |
| |
| private boolean startTethering(ArrayList<String> available) { |
| |
| boolean wifiAvailable = false; |
| |
| checkAndSetConnectivityInstance(); |
| |
| String[] wifiRegexs = mCm.getTetherableWifiRegexs(); |
| |
| for (String intf : available) { |
| for (String regex : wifiRegexs) { |
| if (intf.matches(regex)) { |
| |
| InterfaceConfiguration ifcg = null; |
| try { |
| ifcg = mNwService.getInterfaceConfig(intf); |
| if (ifcg != null) { |
| /* IP/netmask: 192.168.43.1/255.255.255.0 */ |
| ifcg.setLinkAddress(new LinkAddress( |
| NetworkUtils.numericToInetAddress("192.168.43.1"), 24)); |
| ifcg.setInterfaceUp(); |
| |
| mNwService.setInterfaceConfig(intf, ifcg); |
| } |
| } catch (Exception e) { |
| loge("Error configuring interface " + intf + ", :" + e); |
| return false; |
| } |
| |
| if(mCm.tether(intf) != ConnectivityManager.TETHER_ERROR_NO_ERROR) { |
| loge("Error tethering on " + intf); |
| return false; |
| } |
| mTetherInterfaceName = intf; |
| return true; |
| } |
| } |
| } |
| // We found no interfaces to tether |
| return false; |
| } |
| |
| private void stopTethering() { |
| |
| checkAndSetConnectivityInstance(); |
| |
| /* Clear the interface config to allow dhcp correctly configure new |
| ip settings */ |
| InterfaceConfiguration ifcg = null; |
| try { |
| ifcg = mNwService.getInterfaceConfig(mTetherInterfaceName); |
| if (ifcg != null) { |
| ifcg.setLinkAddress( |
| new LinkAddress(NetworkUtils.numericToInetAddress("0.0.0.0"), 0)); |
| mNwService.setInterfaceConfig(mTetherInterfaceName, ifcg); |
| } |
| } catch (Exception e) { |
| loge("Error resetting interface " + mTetherInterfaceName + ", :" + e); |
| } |
| |
| if (mCm.untether(mTetherInterfaceName) != ConnectivityManager.TETHER_ERROR_NO_ERROR) { |
| loge("Untether initiate failed!"); |
| } |
| } |
| |
| private boolean isWifiTethered(ArrayList<String> active) { |
| |
| checkAndSetConnectivityInstance(); |
| |
| String[] wifiRegexs = mCm.getTetherableWifiRegexs(); |
| for (String intf : active) { |
| for (String regex : wifiRegexs) { |
| if (intf.matches(regex)) { |
| return true; |
| } |
| } |
| } |
| // We found no interfaces that are tethered |
| return false; |
| } |
| |
| /** |
| * Set the country code from the system setting value, if any. |
| */ |
| private void setCountryCode() { |
| String countryCode = Settings.Secure.getString(mContext.getContentResolver(), |
| Settings.Secure.WIFI_COUNTRY_CODE); |
| if (countryCode != null && !countryCode.isEmpty()) { |
| setCountryCode(countryCode, false); |
| } else { |
| //use driver default |
| } |
| } |
| |
| /** |
| * Set the frequency band from the system setting value, if any. |
| */ |
| private void setFrequencyBand() { |
| int band = Settings.Secure.getInt(mContext.getContentResolver(), |
| Settings.Secure.WIFI_FREQUENCY_BAND, WifiManager.WIFI_FREQUENCY_BAND_AUTO); |
| setFrequencyBand(band, false); |
| } |
| |
| private void setWifiState(int wifiState) { |
| final int previousWifiState = mWifiState.get(); |
| |
| try { |
| if (wifiState == WIFI_STATE_ENABLED) { |
| mBatteryStats.noteWifiOn(); |
| } else if (wifiState == WIFI_STATE_DISABLED) { |
| mBatteryStats.noteWifiOff(); |
| } |
| } catch (RemoteException e) { |
| loge("Failed to note battery stats in wifi"); |
| } |
| |
| mWifiState.set(wifiState); |
| |
| if (DBG) log("setWifiState: " + syncGetWifiStateByName()); |
| |
| final Intent intent = new Intent(WifiManager.WIFI_STATE_CHANGED_ACTION); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| intent.putExtra(WifiManager.EXTRA_WIFI_STATE, wifiState); |
| intent.putExtra(WifiManager.EXTRA_PREVIOUS_WIFI_STATE, previousWifiState); |
| mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); |
| } |
| |
| private void setWifiApState(int wifiApState) { |
| final int previousWifiApState = mWifiApState.get(); |
| |
| try { |
| if (wifiApState == WIFI_AP_STATE_ENABLED) { |
| mBatteryStats.noteWifiOn(); |
| } else if (wifiApState == WIFI_AP_STATE_DISABLED) { |
| mBatteryStats.noteWifiOff(); |
| } |
| } catch (RemoteException e) { |
| loge("Failed to note battery stats in wifi"); |
| } |
| |
| // Update state |
| mWifiApState.set(wifiApState); |
| |
| if (DBG) log("setWifiApState: " + syncGetWifiApStateByName()); |
| |
| final Intent intent = new Intent(WifiManager.WIFI_AP_STATE_CHANGED_ACTION); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| intent.putExtra(WifiManager.EXTRA_WIFI_AP_STATE, wifiApState); |
| intent.putExtra(WifiManager.EXTRA_PREVIOUS_WIFI_AP_STATE, previousWifiApState); |
| mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); |
| } |
| |
| private static final String BSSID_STR = "bssid="; |
| private static final String FREQ_STR = "freq="; |
| private static final String LEVEL_STR = "level="; |
| private static final String TSF_STR = "tsf="; |
| private static final String FLAGS_STR = "flags="; |
| private static final String SSID_STR = "ssid="; |
| private static final String DELIMITER_STR = "===="; |
| /** |
| * Format: |
| * bssid=68:7f:76:d7:1a:6e |
| * freq=2412 |
| * level=-44 |
| * tsf=1344626243700342 |
| * flags=[WPA2-PSK-CCMP][WPS][ESS] |
| * ssid=zfdy |
| * ==== |
| * bssid=68:5f:74:d7:1a:6f |
| * freq=5180 |
| * level=-73 |
| * tsf=1344626243700373 |
| * flags=[WPA2-PSK-CCMP][WPS][ESS] |
| * ssid=zuby |
| * ==== |
| */ |
| private void setScanResults(String scanResults) { |
| String bssid = ""; |
| int level = 0; |
| int freq = 0; |
| long tsf = 0; |
| String flags = ""; |
| String ssid = ""; |
| |
| if (scanResults == null) { |
| return; |
| } |
| |
| synchronized(mScanResultCache) { |
| mScanResults = new ArrayList<ScanResult>(); |
| String[] lines = scanResults.split("\n"); |
| |
| for (String line : lines) { |
| if (line.startsWith(BSSID_STR)) { |
| bssid = line.substring(BSSID_STR.length()); |
| } else if (line.startsWith(FREQ_STR)) { |
| try { |
| freq = Integer.parseInt(line.substring(FREQ_STR.length())); |
| } catch (NumberFormatException e) { |
| freq = 0; |
| } |
| } else if (line.startsWith(LEVEL_STR)) { |
| try { |
| level = Integer.parseInt(line.substring(LEVEL_STR.length())); |
| /* some implementations avoid negative values by adding 256 |
| * so we need to adjust for that here. |
| */ |
| if (level > 0) level -= 256; |
| } catch(NumberFormatException e) { |
| level = 0; |
| } |
| } else if (line.startsWith(TSF_STR)) { |
| try { |
| tsf = Long.parseLong(line.substring(TSF_STR.length())); |
| } catch (NumberFormatException e) { |
| tsf = 0; |
| } |
| } else if (line.startsWith(FLAGS_STR)) { |
| flags = line.substring(FLAGS_STR.length()); |
| } else if (line.startsWith(SSID_STR)) { |
| ssid = line.substring(SSID_STR.length()); |
| if (ssid == null) ssid = ""; |
| } else if (line.startsWith(DELIMITER_STR)) { |
| if (bssid != null) { |
| String key = bssid + ssid; |
| ScanResult scanResult = mScanResultCache.get(key); |
| if (scanResult != null) { |
| scanResult.level = level; |
| scanResult.SSID = ssid; |
| scanResult.capabilities = flags; |
| scanResult.frequency = freq; |
| scanResult.timestamp = tsf; |
| } else { |
| scanResult = |
| new ScanResult( |
| ssid, bssid, flags, level, freq, tsf); |
| mScanResultCache.put(key, scanResult); |
| } |
| mScanResults.add(scanResult); |
| } |
| bssid = null; |
| level = 0; |
| freq = 0; |
| tsf = 0; |
| flags = ""; |
| ssid = ""; |
| } |
| } |
| } |
| } |
| |
| /* |
| * Fetch RSSI and linkspeed on current connection |
| */ |
| private void fetchRssiAndLinkSpeedNative() { |
| int newRssi = -1; |
| int newLinkSpeed = -1; |
| |
| String signalPoll = mWifiNative.signalPoll(); |
| |
| if (signalPoll != null) { |
| String[] lines = signalPoll.split("\n"); |
| for (String line : lines) { |
| String[] prop = line.split("="); |
| if (prop.length < 2) continue; |
| try { |
| if (prop[0].equals("RSSI")) { |
| newRssi = Integer.parseInt(prop[1]); |
| } else if (prop[0].equals("LINKSPEED")) { |
| newLinkSpeed = Integer.parseInt(prop[1]); |
| } |
| } catch (NumberFormatException e) { |
| //Ignore, defaults on rssi and linkspeed are assigned |
| } |
| } |
| } |
| |
| if (newRssi != -1 && MIN_RSSI < newRssi && newRssi < MAX_RSSI) { // screen out invalid values |
| /* some implementations avoid negative values by adding 256 |
| * so we need to adjust for that here. |
| */ |
| if (newRssi > 0) newRssi -= 256; |
| mWifiInfo.setRssi(newRssi); |
| /* |
| * Rather then sending the raw RSSI out every time it |
| * changes, we precalculate the signal level that would |
| * be displayed in the status bar, and only send the |
| * broadcast if that much more coarse-grained number |
| * changes. This cuts down greatly on the number of |
| * broadcasts, at the cost of not informing others |
| * interested in RSSI of all the changes in signal |
| * level. |
| */ |
| int newSignalLevel = WifiManager.calculateSignalLevel(newRssi, WifiManager.RSSI_LEVELS); |
| if (newSignalLevel != mLastSignalLevel) { |
| sendRssiChangeBroadcast(newRssi); |
| } |
| mLastSignalLevel = newSignalLevel; |
| } else { |
| mWifiInfo.setRssi(MIN_RSSI); |
| } |
| |
| if (newLinkSpeed != -1) { |
| mWifiInfo.setLinkSpeed(newLinkSpeed); |
| } |
| } |
| |
| /* |
| * Fetch TX packet counters on current connection |
| */ |
| private void fetchPktcntNative(RssiPacketCountInfo info) { |
| String pktcntPoll = mWifiNative.pktcntPoll(); |
| |
| if (pktcntPoll != null) { |
| String[] lines = pktcntPoll.split("\n"); |
| for (String line : lines) { |
| String[] prop = line.split("="); |
| if (prop.length < 2) continue; |
| try { |
| if (prop[0].equals("TXGOOD")) { |
| info.txgood = Integer.parseInt(prop[1]); |
| } else if (prop[0].equals("TXBAD")) { |
| info.txbad = Integer.parseInt(prop[1]); |
| } |
| } catch (NumberFormatException e) { |
| //Ignore |
| } |
| } |
| } |
| } |
| |
| private void configureLinkProperties() { |
| if (mWifiConfigStore.isUsingStaticIp(mLastNetworkId)) { |
| mLinkProperties = mWifiConfigStore.getLinkProperties(mLastNetworkId); |
| } else { |
| synchronized (mDhcpInfoInternal) { |
| mLinkProperties = mDhcpInfoInternal.makeLinkProperties(); |
| } |
| mLinkProperties.setHttpProxy(mWifiConfigStore.getProxyProperties(mLastNetworkId)); |
| } |
| mLinkProperties.setInterfaceName(mInterfaceName); |
| if (DBG) { |
| log("netId=" + mLastNetworkId + " Link configured: " + |
| mLinkProperties.toString()); |
| } |
| } |
| |
| private int getMaxDhcpRetries() { |
| return Settings.Secure.getInt(mContext.getContentResolver(), |
| Settings.Secure.WIFI_MAX_DHCP_RETRY_COUNT, |
| DEFAULT_MAX_DHCP_RETRIES); |
| } |
| |
| private void sendScanResultsAvailableBroadcast() { |
| Intent intent = new Intent(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| mContext.sendBroadcastAsUser(intent, UserHandle.ALL); |
| } |
| |
| private void sendRssiChangeBroadcast(final int newRssi) { |
| Intent intent = new Intent(WifiManager.RSSI_CHANGED_ACTION); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| intent.putExtra(WifiManager.EXTRA_NEW_RSSI, newRssi); |
| mContext.sendBroadcastAsUser(intent, UserHandle.ALL); |
| } |
| |
| private void sendNetworkStateChangeBroadcast(String bssid) { |
| Intent intent = new Intent(WifiManager.NETWORK_STATE_CHANGED_ACTION); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| intent.putExtra(WifiManager.EXTRA_NETWORK_INFO, new NetworkInfo(mNetworkInfo)); |
| intent.putExtra(WifiManager.EXTRA_LINK_PROPERTIES, new LinkProperties (mLinkProperties)); |
| if (bssid != null) |
| intent.putExtra(WifiManager.EXTRA_BSSID, bssid); |
| if (mNetworkInfo.getDetailedState() == DetailedState.VERIFYING_POOR_LINK || |
| mNetworkInfo.getDetailedState() == DetailedState.CONNECTED) { |
| intent.putExtra(WifiManager.EXTRA_WIFI_INFO, new WifiInfo(mWifiInfo)); |
| } |
| mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); |
| } |
| |
| private void sendLinkConfigurationChangedBroadcast() { |
| Intent intent = new Intent(WifiManager.LINK_CONFIGURATION_CHANGED_ACTION); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| intent.putExtra(WifiManager.EXTRA_LINK_PROPERTIES, new LinkProperties(mLinkProperties)); |
| mContext.sendBroadcastAsUser(intent, UserHandle.ALL); |
| } |
| |
| private void sendSupplicantConnectionChangedBroadcast(boolean connected) { |
| Intent intent = new Intent(WifiManager.SUPPLICANT_CONNECTION_CHANGE_ACTION); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| intent.putExtra(WifiManager.EXTRA_SUPPLICANT_CONNECTED, connected); |
| mContext.sendBroadcastAsUser(intent, UserHandle.ALL); |
| } |
| |
| /** |
| * Record the detailed state of a network. |
| * @param state the new {@code DetailedState} |
| */ |
| private void setNetworkDetailedState(NetworkInfo.DetailedState state) { |
| if (DBG) { |
| log("setDetailed state, old =" |
| + mNetworkInfo.getDetailedState() + " and new state=" + state); |
| } |
| |
| if (state != mNetworkInfo.getDetailedState()) { |
| mNetworkInfo.setDetailedState(state, null, mWifiInfo.getSSID()); |
| } |
| } |
| |
| private DetailedState getNetworkDetailedState() { |
| return mNetworkInfo.getDetailedState(); |
| } |
| |
| |
| private SupplicantState handleSupplicantStateChange(Message message) { |
| StateChangeResult stateChangeResult = (StateChangeResult) message.obj; |
| SupplicantState state = stateChangeResult.state; |
| // Supplicant state change |
| // [31-13] Reserved for future use |
| // [8 - 0] Supplicant state (as defined in SupplicantState.java) |
| // 50023 supplicant_state_changed (custom|1|5) |
| EventLog.writeEvent(EVENTLOG_SUPPLICANT_STATE_CHANGED, state.ordinal()); |
| mWifiInfo.setSupplicantState(state); |
| // Network id is only valid when we start connecting |
| if (SupplicantState.isConnecting(state)) { |
| mWifiInfo.setNetworkId(stateChangeResult.networkId); |
| } else { |
| mWifiInfo.setNetworkId(WifiConfiguration.INVALID_NETWORK_ID); |
| } |
| |
| mWifiInfo.setBSSID(stateChangeResult.BSSID); |
| mWifiInfo.setSSID(stateChangeResult.SSID); |
| |
| mSupplicantStateTracker.sendMessage(Message.obtain(message)); |
| |
| return state; |
| } |
| |
| /** |
| * Resets the Wi-Fi Connections by clearing any state, resetting any sockets |
| * using the interface, stopping DHCP & disabling interface |
| */ |
| private void handleNetworkDisconnect() { |
| if (DBG) log("Stopping DHCP and clearing IP"); |
| |
| /* |
| * stop DHCP |
| */ |
| if (mDhcpStateMachine != null) { |
| /* In case we were in middle of DHCP operation |
| restore back powermode */ |
| handlePostDhcpSetup(); |
| mDhcpStateMachine.sendMessage(DhcpStateMachine.CMD_STOP_DHCP); |
| } |
| |
| try { |
| mNwService.clearInterfaceAddresses(mInterfaceName); |
| mNwService.disableIpv6(mInterfaceName); |
| } catch (Exception e) { |
| loge("Failed to clear addresses or disable ipv6" + e); |
| } |
| |
| /* Reset data structures */ |
| mWifiInfo.setInetAddress(null); |
| mWifiInfo.setBSSID(null); |
| mWifiInfo.setSSID(null); |
| mWifiInfo.setNetworkId(WifiConfiguration.INVALID_NETWORK_ID); |
| mWifiInfo.setRssi(MIN_RSSI); |
| mWifiInfo.setLinkSpeed(-1); |
| mWifiInfo.setMeteredHint(false); |
| |
| setNetworkDetailedState(DetailedState.DISCONNECTED); |
| mWifiConfigStore.updateStatus(mLastNetworkId, DetailedState.DISCONNECTED); |
| |
| /* send event to CM & network change broadcast */ |
| sendNetworkStateChangeBroadcast(mLastBssid); |
| |
| /* Clear network properties */ |
| mLinkProperties.clear(); |
| /* Clear IP settings if the network used DHCP */ |
| if (!mWifiConfigStore.isUsingStaticIp(mLastNetworkId)) { |
| mWifiConfigStore.clearIpConfiguration(mLastNetworkId); |
| } |
| |
| mLastBssid= null; |
| mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; |
| } |
| |
| void handlePreDhcpSetup() { |
| if (!mBluetoothConnectionActive) { |
| /* |
| * There are problems setting the Wi-Fi driver's power |
| * mode to active when bluetooth coexistence mode is |
| * enabled or sense. |
| * <p> |
| * We set Wi-Fi to active mode when |
| * obtaining an IP address because we've found |
| * compatibility issues with some routers with low power |
| * mode. |
| * <p> |
| * In order for this active power mode to properly be set, |
| * we disable coexistence mode until we're done with |
| * obtaining an IP address. One exception is if we |
| * are currently connected to a headset, since disabling |
| * coexistence would interrupt that connection. |
| */ |
| // Disable the coexistence mode |
| mWifiNative.setBluetoothCoexistenceMode( |
| mWifiNative.BLUETOOTH_COEXISTENCE_MODE_DISABLED); |
| } |
| |
| /* Disable power save during DHCP */ |
| if (mPowerSaveEnabled) { |
| mPowerSaveEnabled = false; |
| mWifiNative.setPowerSave(mPowerSaveEnabled); |
| } |
| } |
| |
| |
| void handlePostDhcpSetup() { |
| /* Restore power save */ |
| mPowerSaveEnabled = true; |
| mWifiNative.setPowerSave(mPowerSaveEnabled); |
| |
| // Set the coexistence mode back to its default value |
| mWifiNative.setBluetoothCoexistenceMode( |
| mWifiNative.BLUETOOTH_COEXISTENCE_MODE_SENSE); |
| } |
| |
| private void handleSuccessfulIpConfiguration(DhcpInfoInternal dhcpInfoInternal) { |
| synchronized (mDhcpInfoInternal) { |
| mDhcpInfoInternal = dhcpInfoInternal; |
| } |
| mLastSignalLevel = -1; // force update of signal strength |
| mReconnectCount = 0; //Reset IP failure tracking |
| mWifiConfigStore.setIpConfiguration(mLastNetworkId, dhcpInfoInternal); |
| InetAddress addr = NetworkUtils.numericToInetAddress(dhcpInfoInternal.ipAddress); |
| mWifiInfo.setInetAddress(addr); |
| mWifiInfo.setMeteredHint(dhcpInfoInternal.hasMeteredHint()); |
| if (getNetworkDetailedState() == DetailedState.CONNECTED) { |
| //DHCP renewal in connected state |
| LinkProperties linkProperties = dhcpInfoInternal.makeLinkProperties(); |
| linkProperties.setHttpProxy(mWifiConfigStore.getProxyProperties(mLastNetworkId)); |
| linkProperties.setInterfaceName(mInterfaceName); |
| if (!linkProperties.equals(mLinkProperties)) { |
| if (DBG) { |
| log("Link configuration changed for netId: " + mLastNetworkId |
| + " old: " + mLinkProperties + "new: " + linkProperties); |
| } |
| mLinkProperties = linkProperties; |
| sendLinkConfigurationChangedBroadcast(); |
| } |
| } else { |
| configureLinkProperties(); |
| } |
| } |
| |
| private void handleFailedIpConfiguration() { |
| loge("IP configuration failed"); |
| |
| mWifiInfo.setInetAddress(null); |
| mWifiInfo.setMeteredHint(false); |
| /** |
| * If we've exceeded the maximum number of retries for DHCP |
| * to a given network, disable the network |
| */ |
| int maxRetries = getMaxDhcpRetries(); |
| // maxRetries == 0 means keep trying forever |
| if (maxRetries > 0 && ++mReconnectCount > maxRetries) { |
| loge("Failed " + |
| mReconnectCount + " times, Disabling " + mLastNetworkId); |
| mWifiConfigStore.disableNetwork(mLastNetworkId, |
| WifiConfiguration.DISABLED_DHCP_FAILURE); |
| mReconnectCount = 0; |
| } |
| |
| /* DHCP times out after about 30 seconds, we do a |
| * disconnect and an immediate reconnect to try again |
| */ |
| mWifiNative.disconnect(); |
| mWifiNative.reconnect(); |
| } |
| |
| /* Current design is to not set the config on a running hostapd but instead |
| * stop and start tethering when user changes config on a running access point |
| * |
| * TODO: Add control channel setup through hostapd that allows changing config |
| * on a running daemon |
| */ |
| private void startSoftApWithConfig(final WifiConfiguration config) { |
| // start hostapd on a seperate thread |
| new Thread(new Runnable() { |
| public void run() { |
| try { |
| mNwService.startAccessPoint(config, mInterfaceName); |
| } catch (Exception e) { |
| loge("Exception in softap start " + e); |
| try { |
| mNwService.stopAccessPoint(mInterfaceName); |
| mNwService.startAccessPoint(config, mInterfaceName); |
| } catch (Exception e1) { |
| loge("Exception in softap re-start " + e1); |
| sendMessage(CMD_START_AP_FAILURE); |
| return; |
| } |
| } |
| if (DBG) log("Soft AP start successful"); |
| sendMessage(CMD_START_AP_SUCCESS); |
| } |
| }).start(); |
| } |
| |
| /******************************************************** |
| * HSM states |
| *******************************************************/ |
| |
| class DefaultState extends State { |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch (message.what) { |
| case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: |
| if (message.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { |
| mWifiP2pChannel.sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); |
| } else { |
| loge("WifiP2pService connection failure, error=" + message.arg1); |
| } |
| break; |
| case AsyncChannel.CMD_CHANNEL_DISCONNECTED: |
| loge("WifiP2pService channel lost, message.arg1 =" + message.arg1); |
| //TODO: Re-establish connection to state machine after a delay |
| //mWifiP2pChannel.connect(mContext, getHandler(), mWifiP2pManager.getMessenger()); |
| break; |
| case CMD_BLUETOOTH_ADAPTER_STATE_CHANGE: |
| mBluetoothConnectionActive = (message.arg1 != |
| BluetoothAdapter.STATE_DISCONNECTED); |
| break; |
| /* Synchronous call returns */ |
| case CMD_PING_SUPPLICANT: |
| case CMD_ENABLE_NETWORK: |
| case CMD_ADD_OR_UPDATE_NETWORK: |
| case CMD_REMOVE_NETWORK: |
| case CMD_SAVE_CONFIG: |
| replyToMessage(message, message.what, FAILURE); |
| break; |
| case CMD_GET_CONFIGURED_NETWORKS: |
| replyToMessage(message, message.what, (List<WifiConfiguration>) null); |
| break; |
| case CMD_ENABLE_RSSI_POLL: |
| mEnableRssiPolling = (message.arg1 == 1); |
| break; |
| case CMD_ENABLE_BACKGROUND_SCAN: |
| mEnableBackgroundScan = (message.arg1 == 1); |
| break; |
| case CMD_SET_HIGH_PERF_MODE: |
| mHighPerfMode = (message.arg1 == 1); |
| break; |
| /* Discard */ |
| case CMD_LOAD_DRIVER: |
| case CMD_UNLOAD_DRIVER: |
| case CMD_START_SUPPLICANT: |
| case CMD_STOP_SUPPLICANT: |
| case CMD_STOP_SUPPLICANT_FAILED: |
| case CMD_START_DRIVER: |
| case CMD_STOP_DRIVER: |
| case CMD_DELAYED_STOP_DRIVER: |
| case CMD_DRIVER_START_TIMED_OUT: |
| case CMD_START_AP: |
| case CMD_START_AP_SUCCESS: |
| case CMD_START_AP_FAILURE: |
| case CMD_STOP_AP: |
| case CMD_TETHER_STATE_CHANGE: |
| case CMD_TETHER_NOTIFICATION_TIMED_OUT: |
| case CMD_START_SCAN: |
| case CMD_DISCONNECT: |
| case CMD_RECONNECT: |
| case CMD_REASSOCIATE: |
| case WifiMonitor.SUP_CONNECTION_EVENT: |
| case WifiMonitor.SUP_DISCONNECTION_EVENT: |
| case WifiMonitor.NETWORK_CONNECTION_EVENT: |
| case WifiMonitor.NETWORK_DISCONNECTION_EVENT: |
| case WifiMonitor.SCAN_RESULTS_EVENT: |
| case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: |
| case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: |
| case WifiMonitor.WPS_OVERLAP_EVENT: |
| case CMD_BLACKLIST_NETWORK: |
| case CMD_CLEAR_BLACKLIST: |
| case CMD_SET_SCAN_MODE: |
| case CMD_SET_SCAN_TYPE: |
| case CMD_SET_COUNTRY_CODE: |
| case CMD_SET_FREQUENCY_BAND: |
| case CMD_RSSI_POLL: |
| case CMD_ENABLE_ALL_NETWORKS: |
| case DhcpStateMachine.CMD_PRE_DHCP_ACTION: |
| case DhcpStateMachine.CMD_POST_DHCP_ACTION: |
| /* Handled by WifiApConfigStore */ |
| case CMD_SET_AP_CONFIG: |
| case CMD_SET_AP_CONFIG_COMPLETED: |
| case CMD_REQUEST_AP_CONFIG: |
| case CMD_RESPONSE_AP_CONFIG: |
| case WifiWatchdogStateMachine.POOR_LINK_DETECTED: |
| case WifiWatchdogStateMachine.GOOD_LINK_DETECTED: |
| case CMD_CLEAR_SUSPEND_OPTIMIZATIONS: |
| case CMD_NO_NETWORKS_PERIODIC_SCAN: |
| break; |
| case DhcpStateMachine.CMD_ON_QUIT: |
| mDhcpStateMachine = null; |
| break; |
| case CMD_SET_SUSPEND_OPTIMIZATIONS: |
| mSuspendWakeLock.release(); |
| break; |
| case WifiMonitor.DRIVER_HUNG_EVENT: |
| setWifiEnabled(false); |
| setWifiEnabled(true); |
| break; |
| case WifiManager.CONNECT_NETWORK: |
| replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, |
| WifiManager.BUSY); |
| break; |
| case WifiManager.FORGET_NETWORK: |
| replyToMessage(message, WifiManager.FORGET_NETWORK_FAILED, |
| WifiManager.BUSY); |
| break; |
| case WifiManager.SAVE_NETWORK: |
| replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, |
| WifiManager.BUSY); |
| break; |
| case WifiManager.START_WPS: |
| replyToMessage(message, WifiManager.WPS_FAILED, |
| WifiManager.BUSY); |
| break; |
| case WifiManager.CANCEL_WPS: |
| replyToMessage(message, WifiManager.CANCEL_WPS_FAILED, |
| WifiManager.BUSY); |
| break; |
| case WifiManager.DISABLE_NETWORK: |
| replyToMessage(message, WifiManager.DISABLE_NETWORK_FAILED, |
| WifiManager.BUSY); |
| break; |
| case WifiManager.RSSI_PKTCNT_FETCH: |
| replyToMessage(message, WifiManager.RSSI_PKTCNT_FETCH_FAILED, |
| WifiManager.BUSY); |
| break; |
| default: |
| loge("Error! unhandled message" + message); |
| break; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class InitialState extends State { |
| @Override |
| //TODO: could move logging into a common class |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| // [31-8] Reserved for future use |
| // [7 - 0] HSM state change |
| // 50021 wifi_state_changed (custom|1|5) |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| |
| if (mWifiNative.isDriverLoaded()) { |
| transitionTo(mDriverLoadedState); |
| } |
| else { |
| transitionTo(mDriverUnloadedState); |
| } |
| |
| //Connect to WifiP2pService |
| mWifiP2pManager = (WifiP2pManager) mContext.getSystemService(Context.WIFI_P2P_SERVICE); |
| mWifiP2pChannel.connect(mContext, getHandler(), mWifiP2pManager.getMessenger()); |
| |
| /* IPv6 is disabled at boot time and is controlled by framework |
| * to be enabled only as long as we are connected to an access point |
| * |
| * This fixes issues, a few being: |
| * - IPv6 addresses and routes stick around after disconnection |
| * - When connected, the kernel is unaware and can fail to start IPv6 negotiation |
| * - The kernel sometimes starts autoconfiguration when 802.1x is not complete |
| */ |
| try { |
| mNwService.disableIpv6(mInterfaceName); |
| } catch (RemoteException re) { |
| loge("Failed to disable IPv6: " + re); |
| } catch (IllegalStateException e) { |
| loge("Failed to disable IPv6: " + e); |
| } |
| } |
| } |
| |
| class DriverLoadingState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| |
| final Message message = new Message(); |
| message.copyFrom(getCurrentMessage()); |
| /* TODO: add a timeout to fail when driver load is hung. |
| * Similarly for driver unload. |
| */ |
| new Thread(new Runnable() { |
| public void run() { |
| mWakeLock.acquire(); |
| //enabling state |
| switch(message.arg1) { |
| case WIFI_STATE_ENABLING: |
| setWifiState(WIFI_STATE_ENABLING); |
| break; |
| case WIFI_AP_STATE_ENABLING: |
| setWifiApState(WIFI_AP_STATE_ENABLING); |
| break; |
| } |
| |
| if(mWifiNative.loadDriver()) { |
| if (DBG) log("Driver load successful"); |
| sendMessage(CMD_LOAD_DRIVER_SUCCESS); |
| } else { |
| loge("Failed to load driver!"); |
| switch(message.arg1) { |
| case WIFI_STATE_ENABLING: |
| setWifiState(WIFI_STATE_UNKNOWN); |
| break; |
| case WIFI_AP_STATE_ENABLING: |
| setWifiApState(WIFI_AP_STATE_FAILED); |
| break; |
| } |
| sendMessage(CMD_LOAD_DRIVER_FAILURE); |
| } |
| mWakeLock.release(); |
| } |
| }).start(); |
| } |
| |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch (message.what) { |
| case CMD_LOAD_DRIVER_SUCCESS: |
| transitionTo(mDriverLoadedState); |
| break; |
| case CMD_LOAD_DRIVER_FAILURE: |
| transitionTo(mDriverFailedState); |
| break; |
| case CMD_LOAD_DRIVER: |
| case CMD_UNLOAD_DRIVER: |
| case CMD_START_SUPPLICANT: |
| case CMD_STOP_SUPPLICANT: |
| case CMD_START_AP: |
| case CMD_STOP_AP: |
| case CMD_START_DRIVER: |
| case CMD_STOP_DRIVER: |
| case CMD_SET_SCAN_MODE: |
| case CMD_SET_SCAN_TYPE: |
| case CMD_SET_COUNTRY_CODE: |
| case CMD_SET_FREQUENCY_BAND: |
| case CMD_START_PACKET_FILTERING: |
| case CMD_STOP_PACKET_FILTERING: |
| deferMessage(message); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class DriverLoadedState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch(message.what) { |
| case CMD_UNLOAD_DRIVER: |
| transitionTo(mDriverUnloadingState); |
| break; |
| case CMD_START_SUPPLICANT: |
| try { |
| mNwService.wifiFirmwareReload(mInterfaceName, "STA"); |
| } catch (Exception e) { |
| loge("Failed to reload STA firmware " + e); |
| // continue |
| } |
| try { |
| //A runtime crash can leave the interface up and |
| //this affects connectivity when supplicant starts up. |
| //Ensure interface is down before a supplicant start. |
| mNwService.setInterfaceDown(mInterfaceName); |
| //Set privacy extensions |
| mNwService.setInterfaceIpv6PrivacyExtensions(mInterfaceName, true); |
| } catch (RemoteException re) { |
| loge("Unable to change interface settings: " + re); |
| } catch (IllegalStateException ie) { |
| loge("Unable to change interface settings: " + ie); |
| } |
| |
| if(mWifiNative.startSupplicant(mP2pSupported)) { |
| if (DBG) log("Supplicant start successful"); |
| mWifiMonitor.startMonitoring(); |
| transitionTo(mSupplicantStartingState); |
| } else { |
| loge("Failed to start supplicant!"); |
| sendMessage(obtainMessage(CMD_UNLOAD_DRIVER, WIFI_STATE_UNKNOWN, 0)); |
| } |
| break; |
| case CMD_START_AP: |
| transitionTo(mSoftApStartingState); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class DriverUnloadingState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| |
| final Message message = new Message(); |
| message.copyFrom(getCurrentMessage()); |
| new Thread(new Runnable() { |
| public void run() { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| mWakeLock.acquire(); |
| if(mWifiNative.unloadDriver()) { |
| if (DBG) log("Driver unload successful"); |
| sendMessage(CMD_UNLOAD_DRIVER_SUCCESS); |
| |
| switch(message.arg1) { |
| case WIFI_STATE_DISABLED: |
| case WIFI_STATE_UNKNOWN: |
| setWifiState(message.arg1); |
| break; |
| case WIFI_AP_STATE_DISABLED: |
| case WIFI_AP_STATE_FAILED: |
| setWifiApState(message.arg1); |
| break; |
| } |
| } else { |
| loge("Failed to unload driver!"); |
| sendMessage(CMD_UNLOAD_DRIVER_FAILURE); |
| |
| switch(message.arg1) { |
| case WIFI_STATE_DISABLED: |
| case WIFI_STATE_UNKNOWN: |
| setWifiState(WIFI_STATE_UNKNOWN); |
| break; |
| case WIFI_AP_STATE_DISABLED: |
| case WIFI_AP_STATE_FAILED: |
| setWifiApState(WIFI_AP_STATE_FAILED); |
| break; |
| } |
| } |
| mWakeLock.release(); |
| } |
| }).start(); |
| } |
| |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch (message.what) { |
| case CMD_UNLOAD_DRIVER_SUCCESS: |
| transitionTo(mDriverUnloadedState); |
| break; |
| case CMD_UNLOAD_DRIVER_FAILURE: |
| transitionTo(mDriverFailedState); |
| break; |
| case CMD_LOAD_DRIVER: |
| case CMD_UNLOAD_DRIVER: |
| case CMD_START_SUPPLICANT: |
| case CMD_STOP_SUPPLICANT: |
| case CMD_START_AP: |
| case CMD_STOP_AP: |
| case CMD_START_DRIVER: |
| case CMD_STOP_DRIVER: |
| case CMD_SET_SCAN_MODE: |
| case CMD_SET_SCAN_TYPE: |
| case CMD_SET_COUNTRY_CODE: |
| case CMD_SET_FREQUENCY_BAND: |
| case CMD_START_PACKET_FILTERING: |
| case CMD_STOP_PACKET_FILTERING: |
| deferMessage(message); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class DriverUnloadedState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch (message.what) { |
| case CMD_LOAD_DRIVER: |
| transitionTo(mDriverLoadingState); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class DriverFailedState extends State { |
| @Override |
| public void enter() { |
| loge(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| return NOT_HANDLED; |
| } |
| } |
| |
| |
| class SupplicantStartingState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| } |
| |
| private void initializeWpsDetails() { |
| String detail; |
| detail = SystemProperties.get("ro.product.name", ""); |
| if (!mWifiNative.setDeviceName(detail)) { |
| loge("Failed to set device name " + detail); |
| } |
| detail = SystemProperties.get("ro.product.manufacturer", ""); |
| if (!mWifiNative.setManufacturer(detail)) { |
| loge("Failed to set manufacturer " + detail); |
| } |
| detail = SystemProperties.get("ro.product.model", ""); |
| if (!mWifiNative.setModelName(detail)) { |
| loge("Failed to set model name " + detail); |
| } |
| detail = SystemProperties.get("ro.product.model", ""); |
| if (!mWifiNative.setModelNumber(detail)) { |
| loge("Failed to set model number " + detail); |
| } |
| detail = SystemProperties.get("ro.serialno", ""); |
| if (!mWifiNative.setSerialNumber(detail)) { |
| loge("Failed to set serial number " + detail); |
| } |
| if (!mWifiNative.setConfigMethods("physical_display virtual_push_button keypad")) { |
| loge("Failed to set WPS config methods"); |
| } |
| if (!mWifiNative.setDeviceType(mPrimaryDeviceType)) { |
| loge("Failed to set primary device type " + mPrimaryDeviceType); |
| } |
| } |
| |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch(message.what) { |
| case WifiMonitor.SUP_CONNECTION_EVENT: |
| if (DBG) log("Supplicant connection established"); |
| setWifiState(WIFI_STATE_ENABLED); |
| mSupplicantRestartCount = 0; |
| /* Reset the supplicant state to indicate the supplicant |
| * state is not known at this time */ |
| mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); |
| /* Initialize data structures */ |
| mLastBssid = null; |
| mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; |
| mLastSignalLevel = -1; |
| |
| mWifiInfo.setMacAddress(mWifiNative.getMacAddress()); |
| mWifiConfigStore.initialize(); |
| initializeWpsDetails(); |
| |
| sendSupplicantConnectionChangedBroadcast(true); |
| transitionTo(mDriverStartedState); |
| break; |
| case WifiMonitor.SUP_DISCONNECTION_EVENT: |
| if (++mSupplicantRestartCount <= SUPPLICANT_RESTART_TRIES) { |
| loge("Failed to setup control channel, restart supplicant"); |
| mWifiNative.killSupplicant(); |
| transitionTo(mDriverLoadedState); |
| sendMessageDelayed(CMD_START_SUPPLICANT, SUPPLICANT_RESTART_INTERVAL_MSECS); |
| } else { |
| loge("Failed " + mSupplicantRestartCount + |
| " times to start supplicant, unload driver"); |
| mSupplicantRestartCount = 0; |
| transitionTo(mDriverLoadedState); |
| sendMessage(obtainMessage(CMD_UNLOAD_DRIVER, WIFI_STATE_UNKNOWN, 0)); |
| } |
| break; |
| case CMD_LOAD_DRIVER: |
| case CMD_UNLOAD_DRIVER: |
| case CMD_START_SUPPLICANT: |
| case CMD_STOP_SUPPLICANT: |
| case CMD_START_AP: |
| case CMD_STOP_AP: |
| case CMD_START_DRIVER: |
| case CMD_STOP_DRIVER: |
| case CMD_SET_SCAN_MODE: |
| case CMD_SET_SCAN_TYPE: |
| case CMD_SET_COUNTRY_CODE: |
| case CMD_SET_FREQUENCY_BAND: |
| case CMD_START_PACKET_FILTERING: |
| case CMD_STOP_PACKET_FILTERING: |
| deferMessage(message); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class SupplicantStartedState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| /* Initialize for connect mode operation at start */ |
| mIsScanMode = false; |
| /* Wifi is available as long as we have a connection to supplicant */ |
| mNetworkInfo.setIsAvailable(true); |
| |
| int defaultInterval = mContext.getResources().getInteger( |
| com.android.internal.R.integer.config_wifi_supplicant_scan_interval); |
| |
| mSupplicantScanIntervalMs = Settings.Secure.getLong(mContext.getContentResolver(), |
| Settings.Secure.WIFI_SUPPLICANT_SCAN_INTERVAL_MS, |
| defaultInterval); |
| |
| mWifiNative.setScanInterval((int)mSupplicantScanIntervalMs / 1000); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| WifiConfiguration config; |
| switch(message.what) { |
| case CMD_STOP_SUPPLICANT: /* Supplicant stopped by user */ |
| transitionTo(mSupplicantStoppingState); |
| break; |
| case WifiMonitor.SUP_DISCONNECTION_EVENT: /* Supplicant connection lost */ |
| loge("Connection lost, restart supplicant"); |
| mWifiNative.killSupplicant(); |
| mWifiNative.closeSupplicantConnection(); |
| mNetworkInfo.setIsAvailable(false); |
| handleNetworkDisconnect(); |
| sendSupplicantConnectionChangedBroadcast(false); |
| mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); |
| transitionTo(mDriverLoadedState); |
| sendMessageDelayed(CMD_START_SUPPLICANT, SUPPLICANT_RESTART_INTERVAL_MSECS); |
| break; |
| case WifiMonitor.SCAN_RESULTS_EVENT: |
| setScanResults(mWifiNative.scanResults()); |
| sendScanResultsAvailableBroadcast(); |
| mScanResultIsPending = false; |
| break; |
| case CMD_PING_SUPPLICANT: |
| boolean ok = mWifiNative.ping(); |
| replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); |
| break; |
| case CMD_ADD_OR_UPDATE_NETWORK: |
| config = (WifiConfiguration) message.obj; |
| replyToMessage(message, CMD_ADD_OR_UPDATE_NETWORK, |
| mWifiConfigStore.addOrUpdateNetwork(config)); |
| break; |
| case CMD_REMOVE_NETWORK: |
| ok = mWifiConfigStore.removeNetwork(message.arg1); |
| replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); |
| break; |
| case CMD_ENABLE_NETWORK: |
| ok = mWifiConfigStore.enableNetwork(message.arg1, message.arg2 == 1); |
| replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); |
| break; |
| case CMD_ENABLE_ALL_NETWORKS: |
| long time = android.os.SystemClock.elapsedRealtime(); |
| if (time - mLastEnableAllNetworksTime > MIN_INTERVAL_ENABLE_ALL_NETWORKS_MS) { |
| mWifiConfigStore.enableAllNetworks(); |
| mLastEnableAllNetworksTime = time; |
| } |
| break; |
| case WifiManager.DISABLE_NETWORK: |
| if (mWifiConfigStore.disableNetwork(message.arg1, |
| WifiConfiguration.DISABLED_UNKNOWN_REASON) == true) { |
| replyToMessage(message, WifiManager.DISABLE_NETWORK_SUCCEEDED); |
| } else { |
| replyToMessage(message, WifiManager.DISABLE_NETWORK_FAILED, |
| WifiManager.ERROR); |
| } |
| break; |
| case CMD_BLACKLIST_NETWORK: |
| mWifiNative.addToBlacklist((String)message.obj); |
| break; |
| case CMD_CLEAR_BLACKLIST: |
| mWifiNative.clearBlacklist(); |
| break; |
| case CMD_SAVE_CONFIG: |
| ok = mWifiConfigStore.saveConfig(); |
| replyToMessage(message, CMD_SAVE_CONFIG, ok ? SUCCESS : FAILURE); |
| |
| // Inform the backup manager about a data change |
| IBackupManager ibm = IBackupManager.Stub.asInterface( |
| ServiceManager.getService(Context.BACKUP_SERVICE)); |
| if (ibm != null) { |
| try { |
| ibm.dataChanged("com.android.providers.settings"); |
| } catch (Exception e) { |
| // Try again later |
| } |
| } |
| break; |
| case CMD_GET_CONFIGURED_NETWORKS: |
| replyToMessage(message, message.what, |
| mWifiConfigStore.getConfiguredNetworks()); |
| break; |
| /* Cannot start soft AP while in client mode */ |
| case CMD_START_AP: |
| loge("Failed to start soft AP with a running supplicant"); |
| setWifiApState(WIFI_AP_STATE_FAILED); |
| break; |
| case CMD_SET_SCAN_MODE: |
| mIsScanMode = (message.arg1 == SCAN_ONLY_MODE); |
| break; |
| case WifiManager.SAVE_NETWORK: |
| config = (WifiConfiguration) message.obj; |
| NetworkUpdateResult result = mWifiConfigStore.saveNetwork(config); |
| if (result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID) { |
| replyToMessage(message, WifiManager.SAVE_NETWORK_SUCCEEDED); |
| } else { |
| loge("Failed to save network"); |
| replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, |
| WifiManager.ERROR); |
| } |
| break; |
| case WifiManager.FORGET_NETWORK: |
| if (mWifiConfigStore.forgetNetwork(message.arg1)) { |
| replyToMessage(message, WifiManager.FORGET_NETWORK_SUCCEEDED); |
| } else { |
| loge("Failed to forget network"); |
| replyToMessage(message, WifiManager.FORGET_NETWORK_FAILED, |
| WifiManager.ERROR); |
| } |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| |
| @Override |
| public void exit() { |
| mNetworkInfo.setIsAvailable(false); |
| } |
| } |
| |
| class SupplicantStoppingState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| |
| /* Send any reset commands to supplicant before shutting it down */ |
| handleNetworkDisconnect(); |
| if (mDhcpStateMachine != null) { |
| mDhcpStateMachine.doQuit(); |
| } |
| |
| if (DBG) log("stopping supplicant"); |
| if (!mWifiNative.stopSupplicant()) { |
| loge("Failed to stop supplicant"); |
| } |
| |
| /* Send ourselves a delayed message to indicate failure after a wait time */ |
| sendMessageDelayed(obtainMessage(CMD_STOP_SUPPLICANT_FAILED, |
| ++mSupplicantStopFailureToken, 0), SUPPLICANT_RESTART_INTERVAL_MSECS); |
| |
| mNetworkInfo.setIsAvailable(false); |
| setWifiState(WIFI_STATE_DISABLING); |
| sendSupplicantConnectionChangedBroadcast(false); |
| mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch(message.what) { |
| case WifiMonitor.SUP_CONNECTION_EVENT: |
| loge("Supplicant connection received while stopping"); |
| break; |
| case WifiMonitor.SUP_DISCONNECTION_EVENT: |
| if (DBG) log("Supplicant connection lost"); |
| /* Socket connection can be lost when we do a graceful shutdown |
| * or when the driver is hung. Ensure supplicant is stopped here. |
| */ |
| mWifiNative.killSupplicant(); |
| mWifiNative.closeSupplicantConnection(); |
| transitionTo(mDriverLoadedState); |
| break; |
| case CMD_STOP_SUPPLICANT_FAILED: |
| if (message.arg1 == mSupplicantStopFailureToken) { |
| loge("Timed out on a supplicant stop, kill and proceed"); |
| mWifiNative.killSupplicant(); |
| mWifiNative.closeSupplicantConnection(); |
| transitionTo(mDriverLoadedState); |
| } |
| break; |
| case CMD_LOAD_DRIVER: |
| case CMD_UNLOAD_DRIVER: |
| case CMD_START_SUPPLICANT: |
| case CMD_STOP_SUPPLICANT: |
| case CMD_START_AP: |
| case CMD_STOP_AP: |
| case CMD_START_DRIVER: |
| case CMD_STOP_DRIVER: |
| case CMD_SET_SCAN_MODE: |
| case CMD_SET_SCAN_TYPE: |
| case CMD_SET_COUNTRY_CODE: |
| case CMD_SET_FREQUENCY_BAND: |
| case CMD_START_PACKET_FILTERING: |
| case CMD_STOP_PACKET_FILTERING: |
| deferMessage(message); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class DriverStartingState extends State { |
| private int mTries; |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| |
| mTries = 1; |
| /* Send ourselves a delayed message to start driver a second time */ |
| sendMessageDelayed(obtainMessage(CMD_DRIVER_START_TIMED_OUT, |
| ++mDriverStartToken, 0), DRIVER_START_TIME_OUT_MSECS); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch(message.what) { |
| case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: |
| SupplicantState state = handleSupplicantStateChange(message); |
| /* If suplicant is exiting out of INTERFACE_DISABLED state into |
| * a state that indicates driver has started, it is ready to |
| * receive driver commands |
| */ |
| if (SupplicantState.isDriverActive(state)) { |
| transitionTo(mDriverStartedState); |
| } |
| break; |
| case CMD_DRIVER_START_TIMED_OUT: |
| if (message.arg1 == mDriverStartToken) { |
| if (mTries >= 2) { |
| loge("Failed to start driver after " + mTries); |
| transitionTo(mDriverStoppedState); |
| } else { |
| loge("Driver start failed, retrying"); |
| mWakeLock.acquire(); |
| mWifiNative.startDriver(); |
| mWakeLock.release(); |
| |
| ++mTries; |
| /* Send ourselves a delayed message to start driver again */ |
| sendMessageDelayed(obtainMessage(CMD_DRIVER_START_TIMED_OUT, |
| ++mDriverStartToken, 0), DRIVER_START_TIME_OUT_MSECS); |
| } |
| } |
| break; |
| /* Queue driver commands & connection events */ |
| case CMD_START_DRIVER: |
| case CMD_STOP_DRIVER: |
| case WifiMonitor.NETWORK_CONNECTION_EVENT: |
| case WifiMonitor.NETWORK_DISCONNECTION_EVENT: |
| case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: |
| case WifiMonitor.WPS_OVERLAP_EVENT: |
| case CMD_SET_SCAN_TYPE: |
| case CMD_SET_COUNTRY_CODE: |
| case CMD_SET_FREQUENCY_BAND: |
| case CMD_START_PACKET_FILTERING: |
| case CMD_STOP_PACKET_FILTERING: |
| case CMD_START_SCAN: |
| case CMD_DISCONNECT: |
| case CMD_REASSOCIATE: |
| case CMD_RECONNECT: |
| deferMessage(message); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class DriverStartedState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| |
| mIsRunning = true; |
| mInDelayedStop = false; |
| updateBatteryWorkSource(null); |
| |
| /** |
| * Enable bluetooth coexistence scan mode when bluetooth connection is active. |
| * When this mode is on, some of the low-level scan parameters used by the |
| * driver are changed to reduce interference with bluetooth |
| */ |
| mWifiNative.setBluetoothCoexistenceScanMode(mBluetoothConnectionActive); |
| /* set country code */ |
| setCountryCode(); |
| /* set frequency band of operation */ |
| setFrequencyBand(); |
| /* initialize network state */ |
| setNetworkDetailedState(DetailedState.DISCONNECTED); |
| |
| /* Remove any filtering on Multicast v6 at start */ |
| mWifiNative.stopFilteringMulticastV6Packets(); |
| |
| /* Reset Multicast v4 filtering state */ |
| if (mFilteringMulticastV4Packets.get()) { |
| mWifiNative.startFilteringMulticastV4Packets(); |
| } else { |
| mWifiNative.stopFilteringMulticastV4Packets(); |
| } |
| |
| mWifiNative.setPowerSave(mPowerSaveEnabled); |
| |
| if (mIsScanMode) { |
| mWifiNative.setScanResultHandling(SCAN_ONLY_MODE); |
| mWifiNative.disconnect(); |
| transitionTo(mScanModeState); |
| } else { |
| mWifiNative.setScanResultHandling(CONNECT_MODE); |
| mWifiNative.reconnect(); |
| // Status pulls in the current supplicant state and network connection state |
| // events over the monitor connection. This helps framework sync up with |
| // current supplicant state |
| mWifiNative.status(); |
| transitionTo(mDisconnectedState); |
| } |
| |
| if (mP2pSupported) mWifiP2pChannel.sendMessage(WifiStateMachine.CMD_ENABLE_P2P); |
| |
| mContext.registerReceiver(mScreenReceiver, mScreenFilter); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch(message.what) { |
| case CMD_SET_SCAN_TYPE: |
| mSetScanActive = (message.arg1 == SCAN_ACTIVE); |
| mWifiNative.setScanMode(mSetScanActive); |
| break; |
| case CMD_START_SCAN: |
| boolean forceActive = (message.arg1 == SCAN_ACTIVE); |
| if (forceActive && !mSetScanActive) { |
| mWifiNative.setScanMode(forceActive); |
| } |
| mWifiNative.scan(); |
| if (forceActive && !mSetScanActive) { |
| mWifiNative.setScanMode(mSetScanActive); |
| } |
| mScanResultIsPending = true; |
| break; |
| case CMD_SET_COUNTRY_CODE: |
| String country = (String) message.obj; |
| if (DBG) log("set country code " + country); |
| if (!mWifiNative.setCountryCode(country.toUpperCase())) { |
| loge("Failed to set country code " + country); |
| } |
| break; |
| case CMD_SET_FREQUENCY_BAND: |
| int band = message.arg1; |
| if (DBG) log("set frequency band " + band); |
| if (mWifiNative.setBand(band)) { |
| mFrequencyBand.set(band); |
| //Fetch the latest scan results when frequency band is set |
| startScan(true); |
| } else { |
| loge("Failed to set frequency band " + band); |
| } |
| break; |
| case CMD_BLUETOOTH_ADAPTER_STATE_CHANGE: |
| mBluetoothConnectionActive = (message.arg1 != |
| BluetoothAdapter.STATE_DISCONNECTED); |
| mWifiNative.setBluetoothCoexistenceScanMode(mBluetoothConnectionActive); |
| break; |
| case CMD_STOP_DRIVER: |
| int mode = message.arg1; |
| |
| /* Already doing a delayed stop && not in ecm state */ |
| if (mInDelayedStop && mode != IN_ECM_STATE) { |
| if (DBG) log("Already in delayed stop"); |
| break; |
| } |
| mInDelayedStop = true; |
| mDelayedStopCounter++; |
| if (DBG) log("Delayed stop message " + mDelayedStopCounter); |
| |
| if (mode == IN_ECM_STATE) { |
| /* send a shut down immediately */ |
| sendMessage(obtainMessage(CMD_DELAYED_STOP_DRIVER, mDelayedStopCounter, 0)); |
| } else { |
| /* send regular delayed shut down */ |
| Intent driverStopIntent = new Intent(ACTION_DELAYED_DRIVER_STOP, null); |
| driverStopIntent.putExtra(DELAYED_STOP_COUNTER, mDelayedStopCounter); |
| mDriverStopIntent = PendingIntent.getBroadcast(mContext, |
| DRIVER_STOP_REQUEST, driverStopIntent, |
| PendingIntent.FLAG_UPDATE_CURRENT); |
| |
| mAlarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() |
| + mDriverStopDelayMs, mDriverStopIntent); |
| } |
| break; |
| case CMD_START_DRIVER: |
| if (mInDelayedStop) { |
| mInDelayedStop = false; |
| mDelayedStopCounter++; |
| mAlarmManager.cancel(mDriverStopIntent); |
| if (DBG) log("Delayed stop ignored due to start"); |
| } |
| break; |
| case CMD_DELAYED_STOP_DRIVER: |
| if (DBG) log("delayed stop " + message.arg1 + " " + mDelayedStopCounter); |
| if (message.arg1 != mDelayedStopCounter) break; |
| if (getCurrentState() != mDisconnectedState) { |
| mWifiNative.disconnect(); |
| handleNetworkDisconnect(); |
| } |
| mWakeLock.acquire(); |
| mWifiNative.stopDriver(); |
| transitionTo(mDriverStoppingState); |
| mWakeLock.release(); |
| break; |
| case CMD_START_PACKET_FILTERING: |
| if (message.arg1 == MULTICAST_V6) { |
| mWifiNative.startFilteringMulticastV6Packets(); |
| } else if (message.arg1 == MULTICAST_V4) { |
| mWifiNative.startFilteringMulticastV4Packets(); |
| } else { |
| loge("Illegal arugments to CMD_START_PACKET_FILTERING"); |
| } |
| break; |
| case CMD_STOP_PACKET_FILTERING: |
| if (message.arg1 == MULTICAST_V6) { |
| mWifiNative.stopFilteringMulticastV6Packets(); |
| } else if (message.arg1 == MULTICAST_V4) { |
| mWifiNative.stopFilteringMulticastV4Packets(); |
| } else { |
| loge("Illegal arugments to CMD_STOP_PACKET_FILTERING"); |
| } |
| break; |
| case CMD_SET_SUSPEND_OPTIMIZATIONS: |
| if (!mHighPerfMode) { |
| mWifiNative.setSuspendOptimizations(true); |
| } |
| mSuspendWakeLock.release(); |
| break; |
| case CMD_CLEAR_SUSPEND_OPTIMIZATIONS: |
| mWifiNative.setSuspendOptimizations(false); |
| break; |
| case CMD_SET_HIGH_PERF_MODE: |
| mHighPerfMode = (message.arg1 == 1); |
| if (mHighPerfMode) { |
| //Disable any suspend optimizations |
| mWifiNative.setSuspendOptimizations(false); |
| } |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| @Override |
| public void exit() { |
| if (DBG) log(getName() + "\n"); |
| mIsRunning = false; |
| updateBatteryWorkSource(null); |
| mScanResults = new ArrayList<ScanResult>(); |
| |
| if (mP2pSupported) mWifiP2pChannel.sendMessage(WifiStateMachine.CMD_DISABLE_P2P); |
| mContext.unregisterReceiver(mScreenReceiver); |
| } |
| } |
| |
| class DriverStoppingState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch(message.what) { |
| case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: |
| SupplicantState state = handleSupplicantStateChange(message); |
| if (state == SupplicantState.INTERFACE_DISABLED) { |
| transitionTo(mDriverStoppedState); |
| } |
| break; |
| /* Queue driver commands */ |
| case CMD_START_DRIVER: |
| case CMD_STOP_DRIVER: |
| case CMD_SET_SCAN_TYPE: |
| case CMD_SET_COUNTRY_CODE: |
| case CMD_SET_FREQUENCY_BAND: |
| case CMD_START_PACKET_FILTERING: |
| case CMD_STOP_PACKET_FILTERING: |
| case CMD_START_SCAN: |
| case CMD_DISCONNECT: |
| case CMD_REASSOCIATE: |
| case CMD_RECONNECT: |
| deferMessage(message); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class DriverStoppedState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch (message.what) { |
| case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: |
| StateChangeResult stateChangeResult = (StateChangeResult) message.obj; |
| SupplicantState state = stateChangeResult.state; |
| // A WEXT bug means that we can be back to driver started state |
| // unexpectedly |
| if (SupplicantState.isDriverActive(state)) { |
| transitionTo(mDriverStartedState); |
| } |
| break; |
| case CMD_START_DRIVER: |
| mWakeLock.acquire(); |
| mWifiNative.startDriver(); |
| mWakeLock.release(); |
| transitionTo(mDriverStartingState); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class ScanModeState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch(message.what) { |
| case CMD_SET_SCAN_MODE: |
| if (message.arg1 == SCAN_ONLY_MODE) { |
| /* Ignore */ |
| return HANDLED; |
| } else { |
| mWifiNative.setScanResultHandling(message.arg1); |
| mWifiNative.reconnect(); |
| mIsScanMode = false; |
| transitionTo(mDisconnectedState); |
| } |
| break; |
| /* Ignore */ |
| case CMD_DISCONNECT: |
| case CMD_RECONNECT: |
| case CMD_REASSOCIATE: |
| case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: |
| case WifiMonitor.NETWORK_CONNECTION_EVENT: |
| case WifiMonitor.NETWORK_DISCONNECTION_EVENT: |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class ConnectModeState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| StateChangeResult stateChangeResult; |
| switch(message.what) { |
| case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: |
| mSupplicantStateTracker.sendMessage(WifiMonitor.AUTHENTICATION_FAILURE_EVENT); |
| break; |
| case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: |
| SupplicantState state = handleSupplicantStateChange(message); |
| // A driver/firmware hang can now put the interface in a down state. |
| // We detect the interface going down and recover from it |
| if (!SupplicantState.isDriverActive(state)) { |
| if (mNetworkInfo.getState() != NetworkInfo.State.DISCONNECTED) { |
| handleNetworkDisconnect(); |
| } |
| log("Detected an interface down, restart driver"); |
| transitionTo(mDriverStoppedState); |
| sendMessage(CMD_START_DRIVER); |
| break; |
| } |
| |
| // Supplicant can fail to report a NETWORK_DISCONNECTION_EVENT |
| // when authentication times out after a successful connection, |
| // we can figure this from the supplicant state. If supplicant |
| // state is DISCONNECTED, but the mNetworkInfo says we are not |
| // disconnected, we need to handle a disconnection |
| if (state == SupplicantState.DISCONNECTED && |
| mNetworkInfo.getState() != NetworkInfo.State.DISCONNECTED) { |
| if (DBG) log("Missed CTRL-EVENT-DISCONNECTED, disconnect"); |
| handleNetworkDisconnect(); |
| transitionTo(mDisconnectedState); |
| } |
| break; |
| /* Do a redundant disconnect without transition */ |
| case CMD_DISCONNECT: |
| mWifiNative.disconnect(); |
| break; |
| case CMD_RECONNECT: |
| mWifiNative.reconnect(); |
| break; |
| case CMD_REASSOCIATE: |
| mWifiNative.reassociate(); |
| break; |
| case WifiManager.CONNECT_NETWORK: |
| /* The connect message can contain a network id passed as arg1 on message or |
| * or a config passed as obj on message. |
| * For a new network, a config is passed to create and connect. |
| * For an existing network, a network id is passed |
| */ |
| int netId = message.arg1; |
| WifiConfiguration config = (WifiConfiguration) message.obj; |
| |
| /* Save the network config */ |
| if (config != null) { |
| NetworkUpdateResult result = mWifiConfigStore.saveNetwork(config); |
| netId = result.getNetworkId(); |
| } |
| |
| if (mWifiConfigStore.selectNetwork(netId) && |
| mWifiNative.reconnect()) { |
| /* The state tracker handles enabling networks upon completion/failure */ |
| mSupplicantStateTracker.sendMessage(WifiManager.CONNECT_NETWORK); |
| replyToMessage(message, WifiManager.CONNECT_NETWORK_SUCCEEDED); |
| /* Expect a disconnection from the old connection */ |
| transitionTo(mDisconnectingState); |
| } else { |
| loge("Failed to connect config: " + config + " netId: " + netId); |
| replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, |
| WifiManager.ERROR); |
| break; |
| } |
| break; |
| case WifiManager.START_WPS: |
| WpsInfo wpsInfo = (WpsInfo) message.obj; |
| WpsResult result; |
| switch (wpsInfo.setup) { |
| case WpsInfo.PBC: |
| result = mWifiConfigStore.startWpsPbc(wpsInfo); |
| break; |
| case WpsInfo.KEYPAD: |
| result = mWifiConfigStore.startWpsWithPinFromAccessPoint(wpsInfo); |
| break; |
| case WpsInfo.DISPLAY: |
| result = mWifiConfigStore.startWpsWithPinFromDevice(wpsInfo); |
| break; |
| default: |
| result = new WpsResult(Status.FAILURE); |
| Log.e(TAG, "Invalid setup for WPS"); |
| break; |
| } |
| if (result.status == Status.SUCCESS) { |
| replyToMessage(message, WifiManager.START_WPS_SUCCEEDED, result); |
| transitionTo(mWpsRunningState); |
| } else { |
| Log.e(TAG, "Failed to start WPS with config " + wpsInfo.toString()); |
| replyToMessage(message, WifiManager.WPS_FAILED, WifiManager.ERROR); |
| } |
| break; |
| case WifiMonitor.SCAN_RESULTS_EVENT: |
| /* Set the scan setting back to "connect" mode */ |
| mWifiNative.setScanResultHandling(CONNECT_MODE); |
| /* Handle scan results */ |
| return NOT_HANDLED; |
| case WifiMonitor.NETWORK_CONNECTION_EVENT: |
| if (DBG) log("Network connection established"); |
| mLastNetworkId = message.arg1; |
| mLastBssid = (String) message.obj; |
| |
| mWifiInfo.setBSSID(mLastBssid); |
| mWifiInfo.setNetworkId(mLastNetworkId); |
| /* send event to CM & network change broadcast */ |
| setNetworkDetailedState(DetailedState.OBTAINING_IPADDR); |
| sendNetworkStateChangeBroadcast(mLastBssid); |
| transitionTo(mObtainingIpState); |
| break; |
| case WifiMonitor.NETWORK_DISCONNECTION_EVENT: |
| if (DBG) log("Network connection lost"); |
| handleNetworkDisconnect(); |
| transitionTo(mDisconnectedState); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class L2ConnectedState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| mRssiPollToken++; |
| if (mEnableRssiPolling) { |
| sendMessage(obtainMessage(CMD_RSSI_POLL, mRssiPollToken, 0)); |
| } |
| } |
| |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch (message.what) { |
| case DhcpStateMachine.CMD_PRE_DHCP_ACTION: |
| handlePreDhcpSetup(); |
| mDhcpStateMachine.sendMessage(DhcpStateMachine.CMD_PRE_DHCP_ACTION_COMPLETE); |
| break; |
| case DhcpStateMachine.CMD_POST_DHCP_ACTION: |
| handlePostDhcpSetup(); |
| if (message.arg1 == DhcpStateMachine.DHCP_SUCCESS) { |
| if (DBG) log("DHCP successful"); |
| handleSuccessfulIpConfiguration((DhcpInfoInternal) message.obj); |
| transitionTo(mVerifyingLinkState); |
| } else if (message.arg1 == DhcpStateMachine.DHCP_FAILURE) { |
| if (DBG) log("DHCP failed"); |
| handleFailedIpConfiguration(); |
| transitionTo(mDisconnectingState); |
| } |
| break; |
| case CMD_DISCONNECT: |
| mWifiNative.disconnect(); |
| transitionTo(mDisconnectingState); |
| break; |
| case CMD_SET_SCAN_MODE: |
| if (message.arg1 == SCAN_ONLY_MODE) { |
| sendMessage(CMD_DISCONNECT); |
| deferMessage(message); |
| } |
| break; |
| case CMD_START_SCAN: |
| /* When the network is connected, re-scanning can trigger |
| * a reconnection. Put it in scan-only mode during scan. |
| * When scan results are received, the mode is switched |
| * back to CONNECT_MODE. |
| */ |
| mWifiNative.setScanResultHandling(SCAN_ONLY_MODE); |
| /* Have the parent state handle the rest */ |
| return NOT_HANDLED; |
| /* Ignore connection to same network */ |
| case WifiManager.CONNECT_NETWORK: |
| int netId = message.arg1; |
| if (mWifiInfo.getNetworkId() == netId) { |
| break; |
| } |
| return NOT_HANDLED; |
| case WifiManager.SAVE_NETWORK: |
| WifiConfiguration config = (WifiConfiguration) message.obj; |
| NetworkUpdateResult result = mWifiConfigStore.saveNetwork(config); |
| if (mWifiInfo.getNetworkId() == result.getNetworkId()) { |
| if (result.hasIpChanged()) { |
| log("Reconfiguring IP on connection"); |
| transitionTo(mObtainingIpState); |
| } |
| if (result.hasProxyChanged()) { |
| log("Reconfiguring proxy on connection"); |
| configureLinkProperties(); |
| sendLinkConfigurationChangedBroadcast(); |
| } |
| } |
| |
| if (result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID) { |
| replyToMessage(message, WifiManager.SAVE_NETWORK_SUCCEEDED); |
| } else { |
| loge("Failed to save network"); |
| replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, |
| WifiManager.ERROR); |
| } |
| break; |
| /* Ignore */ |
| case WifiMonitor.NETWORK_CONNECTION_EVENT: |
| break; |
| case CMD_RSSI_POLL: |
| if (message.arg1 == mRssiPollToken) { |
| // Get Info and continue polling |
| fetchRssiAndLinkSpeedNative(); |
| sendMessageDelayed(obtainMessage(CMD_RSSI_POLL, |
| mRssiPollToken, 0), POLL_RSSI_INTERVAL_MSECS); |
| } else { |
| // Polling has completed |
| } |
| break; |
| case CMD_ENABLE_RSSI_POLL: |
| mEnableRssiPolling = (message.arg1 == 1); |
| mRssiPollToken++; |
| if (mEnableRssiPolling) { |
| // first poll |
| fetchRssiAndLinkSpeedNative(); |
| sendMessageDelayed(obtainMessage(CMD_RSSI_POLL, |
| mRssiPollToken, 0), POLL_RSSI_INTERVAL_MSECS); |
| } |
| break; |
| case WifiManager.RSSI_PKTCNT_FETCH: |
| RssiPacketCountInfo info = new RssiPacketCountInfo(); |
| fetchRssiAndLinkSpeedNative(); |
| info.rssi = mWifiInfo.getRssi(); |
| fetchPktcntNative(info); |
| replyToMessage(message, WifiManager.RSSI_PKTCNT_FETCH_SUCCEEDED, info); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| |
| return HANDLED; |
| } |
| |
| @Override |
| public void exit() { |
| /* If a scan result is pending in connected state, the supplicant |
| * is in SCAN_ONLY_MODE. Restore CONNECT_MODE on exit |
| */ |
| if (mScanResultIsPending) { |
| mWifiNative.setScanResultHandling(CONNECT_MODE); |
| } |
| } |
| } |
| |
| class ObtainingIpState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| |
| if (!mWifiConfigStore.isUsingStaticIp(mLastNetworkId)) { |
| //start DHCP |
| if (mDhcpStateMachine == null) { |
| mDhcpStateMachine = DhcpStateMachine.makeDhcpStateMachine( |
| mContext, WifiStateMachine.this, mInterfaceName); |
| |
| } |
| mDhcpStateMachine.registerForPreDhcpNotification(); |
| mDhcpStateMachine.sendMessage(DhcpStateMachine.CMD_START_DHCP); |
| } else { |
| DhcpInfoInternal dhcpInfoInternal = mWifiConfigStore.getIpConfiguration( |
| mLastNetworkId); |
| InterfaceConfiguration ifcg = new InterfaceConfiguration(); |
| ifcg.setLinkAddress(dhcpInfoInternal.makeLinkAddress()); |
| ifcg.setInterfaceUp(); |
| try { |
| mNwService.setInterfaceConfig(mInterfaceName, ifcg); |
| if (DBG) log("Static IP configuration succeeded"); |
| sendMessage(CMD_STATIC_IP_SUCCESS, dhcpInfoInternal); |
| } catch (RemoteException re) { |
| loge("Static IP configuration failed: " + re); |
| sendMessage(CMD_STATIC_IP_FAILURE); |
| } catch (IllegalStateException e) { |
| loge("Static IP configuration failed: " + e); |
| sendMessage(CMD_STATIC_IP_FAILURE); |
| } |
| } |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch(message.what) { |
| case CMD_STATIC_IP_SUCCESS: |
| handleSuccessfulIpConfiguration((DhcpInfoInternal) message.obj); |
| transitionTo(mVerifyingLinkState); |
| break; |
| case CMD_STATIC_IP_FAILURE: |
| handleFailedIpConfiguration(); |
| transitionTo(mDisconnectingState); |
| break; |
| case WifiManager.SAVE_NETWORK: |
| deferMessage(message); |
| break; |
| /* Defer any power mode changes since we must keep active power mode at DHCP */ |
| case CMD_SET_HIGH_PERF_MODE: |
| deferMessage(message); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class VerifyingLinkState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| setNetworkDetailedState(DetailedState.VERIFYING_POOR_LINK); |
| mWifiConfigStore.updateStatus(mLastNetworkId, DetailedState.VERIFYING_POOR_LINK); |
| sendNetworkStateChangeBroadcast(mLastBssid); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| switch (message.what) { |
| case WifiWatchdogStateMachine.POOR_LINK_DETECTED: |
| //stay here |
| break; |
| case WifiWatchdogStateMachine.GOOD_LINK_DETECTED: |
| transitionTo(mCaptivePortalCheckState); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class CaptivePortalCheckState extends State { |
| @Override |
| public void enter() { |
| setNetworkDetailedState(DetailedState.CAPTIVE_PORTAL_CHECK); |
| mWifiConfigStore.updateStatus(mLastNetworkId, DetailedState.CAPTIVE_PORTAL_CHECK); |
| sendNetworkStateChangeBroadcast(mLastBssid); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| switch (message.what) { |
| case CMD_CAPTIVE_CHECK_COMPLETE: |
| try { |
| mNwService.enableIpv6(mInterfaceName); |
| } catch (RemoteException re) { |
| loge("Failed to enable IPv6: " + re); |
| } catch (IllegalStateException e) { |
| loge("Failed to enable IPv6: " + e); |
| } |
| setNetworkDetailedState(DetailedState.CONNECTED); |
| mWifiConfigStore.updateStatus(mLastNetworkId, DetailedState.CONNECTED); |
| sendNetworkStateChangeBroadcast(mLastBssid); |
| transitionTo(mConnectedState); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class ConnectedState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch (message.what) { |
| case WifiWatchdogStateMachine.POOR_LINK_DETECTED: |
| if (DBG) log("Watchdog reports poor link"); |
| try { |
| mNwService.disableIpv6(mInterfaceName); |
| } catch (RemoteException re) { |
| loge("Failed to disable IPv6: " + re); |
| } catch (IllegalStateException e) { |
| loge("Failed to disable IPv6: " + e); |
| } |
| /* Report a disconnect */ |
| setNetworkDetailedState(DetailedState.DISCONNECTED); |
| mWifiConfigStore.updateStatus(mLastNetworkId, DetailedState.DISCONNECTED); |
| sendNetworkStateChangeBroadcast(mLastBssid); |
| |
| transitionTo(mVerifyingLinkState); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| @Override |
| public void exit() { |
| /* Request a CS wakelock during transition to mobile */ |
| checkAndSetConnectivityInstance(); |
| mCm.requestNetworkTransitionWakelock(TAG); |
| } |
| } |
| |
| class DisconnectingState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch (message.what) { |
| case CMD_SET_SCAN_MODE: |
| if (message.arg1 == SCAN_ONLY_MODE) { |
| deferMessage(message); |
| } |
| break; |
| case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: |
| /* If we get a SUPPLICANT_STATE_CHANGE_EVENT before NETWORK_DISCONNECTION_EVENT |
| * we have missed the network disconnection, transition to mDisconnectedState |
| * and handle the rest of the events there |
| */ |
| deferMessage(message); |
| handleNetworkDisconnect(); |
| transitionTo(mDisconnectedState); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class DisconnectedState extends State { |
| private boolean mAlarmEnabled = false; |
| /* This is set from the overlay config file or from a secure setting. |
| * A value of 0 disables scanning in the framework. |
| */ |
| private long mFrameworkScanIntervalMs; |
| |
| private void setScanAlarm(boolean enabled) { |
| if (enabled == mAlarmEnabled) return; |
| if (enabled) { |
| if (mFrameworkScanIntervalMs > 0) { |
| mAlarmManager.setRepeating(AlarmManager.RTC_WAKEUP, |
| System.currentTimeMillis() + mFrameworkScanIntervalMs, |
| mFrameworkScanIntervalMs, |
| mScanIntent); |
| mAlarmEnabled = true; |
| } |
| } else { |
| mAlarmManager.cancel(mScanIntent); |
| mAlarmEnabled = false; |
| } |
| } |
| |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| |
| mFrameworkScanIntervalMs = Settings.Secure.getLong(mContext.getContentResolver(), |
| Settings.Secure.WIFI_FRAMEWORK_SCAN_INTERVAL_MS, |
| mDefaultFrameworkScanIntervalMs); |
| /* |
| * We initiate background scanning if it is enabled, otherwise we |
| * initiate an infrequent scan that wakes up the device to ensure |
| * a user connects to an access point on the move |
| */ |
| if (mEnableBackgroundScan) { |
| /* If a regular scan result is pending, do not initiate background |
| * scan until the scan results are returned. This is needed because |
| * initiating a background scan will cancel the regular scan and |
| * scan results will not be returned until background scanning is |
| * cleared |
| */ |
| if (!mScanResultIsPending) { |
| mWifiNative.enableBackgroundScan(true); |
| } |
| } else { |
| setScanAlarm(true); |
| } |
| |
| /** |
| * If we have no networks saved, the supplicant stops doing the periodic scan. |
| * The scans are useful to notify the user of the presence of an open network. |
| * Note that these are not wake up scans. |
| */ |
| if (mWifiConfigStore.getConfiguredNetworks().size() == 0) { |
| sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, |
| ++mPeriodicScanToken, 0), mSupplicantScanIntervalMs); |
| } |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| boolean ret = HANDLED; |
| switch (message.what) { |
| case CMD_NO_NETWORKS_PERIODIC_SCAN: |
| if (message.arg1 == mPeriodicScanToken && |
| mWifiConfigStore.getConfiguredNetworks().size() == 0) { |
| sendMessage(CMD_START_SCAN); |
| sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, |
| ++mPeriodicScanToken, 0), mSupplicantScanIntervalMs); |
| } |
| break; |
| case WifiManager.FORGET_NETWORK: |
| case CMD_REMOVE_NETWORK: |
| // Set up a delayed message here. After the forget/remove is handled |
| // the handled delayed message will determine if there is a need to |
| // scan and continue |
| sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, |
| ++mPeriodicScanToken, 0), mSupplicantScanIntervalMs); |
| ret = NOT_HANDLED; |
| break; |
| case CMD_SET_SCAN_MODE: |
| if (message.arg1 == SCAN_ONLY_MODE) { |
| mWifiNative.setScanResultHandling(message.arg1); |
| //Supplicant disconnect to prevent further connects |
| mWifiNative.disconnect(); |
| mIsScanMode = true; |
| transitionTo(mScanModeState); |
| } |
| break; |
| case CMD_ENABLE_BACKGROUND_SCAN: |
| mEnableBackgroundScan = (message.arg1 == 1); |
| if (mEnableBackgroundScan) { |
| mWifiNative.enableBackgroundScan(true); |
| setScanAlarm(false); |
| } else { |
| mWifiNative.enableBackgroundScan(false); |
| setScanAlarm(true); |
| } |
| break; |
| /* Ignore network disconnect */ |
| case WifiMonitor.NETWORK_DISCONNECTION_EVENT: |
| break; |
| case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: |
| StateChangeResult stateChangeResult = (StateChangeResult) message.obj; |
| setNetworkDetailedState(WifiInfo.getDetailedStateOf(stateChangeResult.state)); |
| /* ConnectModeState does the rest of the handling */ |
| ret = NOT_HANDLED; |
| break; |
| case CMD_START_SCAN: |
| /* Disable background scan temporarily during a regular scan */ |
| if (mEnableBackgroundScan) { |
| mWifiNative.enableBackgroundScan(false); |
| } |
| /* Handled in parent state */ |
| ret = NOT_HANDLED; |
| break; |
| case WifiMonitor.SCAN_RESULTS_EVENT: |
| /* Re-enable background scan when a pending scan result is received */ |
| if (mEnableBackgroundScan && mScanResultIsPending) { |
| mWifiNative.enableBackgroundScan(true); |
| } |
| /* Handled in parent state */ |
| ret = NOT_HANDLED; |
| break; |
| default: |
| ret = NOT_HANDLED; |
| } |
| return ret; |
| } |
| |
| @Override |
| public void exit() { |
| /* No need for a background scan upon exit from a disconnected state */ |
| if (mEnableBackgroundScan) { |
| mWifiNative.enableBackgroundScan(false); |
| } |
| setScanAlarm(false); |
| } |
| } |
| |
| class WpsRunningState extends State { |
| //Tracks the source to provide a reply |
| private Message mSourceMessage; |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| mSourceMessage = Message.obtain(getCurrentMessage()); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch (message.what) { |
| case WifiMonitor.WPS_SUCCESS_EVENT: |
| replyToMessage(mSourceMessage, WifiManager.WPS_COMPLETED); |
| mSourceMessage.recycle(); |
| mSourceMessage = null; |
| transitionTo(mDisconnectedState); |
| break; |
| case WifiMonitor.WPS_OVERLAP_EVENT: |
| replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, |
| WifiManager.WPS_OVERLAP_ERROR); |
| mSourceMessage.recycle(); |
| mSourceMessage = null; |
| transitionTo(mDisconnectedState); |
| break; |
| case WifiMonitor.WPS_FAIL_EVENT: |
| //arg1 has the reason for the failure |
| replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, message.arg1); |
| mSourceMessage.recycle(); |
| mSourceMessage = null; |
| transitionTo(mDisconnectedState); |
| break; |
| case WifiMonitor.WPS_TIMEOUT_EVENT: |
| replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, |
| WifiManager.WPS_TIMED_OUT); |
| mSourceMessage.recycle(); |
| mSourceMessage = null; |
| transitionTo(mDisconnectedState); |
| break; |
| case WifiManager.START_WPS: |
| replyToMessage(message, WifiManager.WPS_FAILED, WifiManager.IN_PROGRESS); |
| break; |
| case WifiManager.CANCEL_WPS: |
| if (mWifiNative.cancelWps()) { |
| replyToMessage(message, WifiManager.CANCEL_WPS_SUCCEDED); |
| } else { |
| replyToMessage(message, WifiManager.CANCEL_WPS_FAILED, WifiManager.ERROR); |
| } |
| transitionTo(mDisconnectedState); |
| break; |
| /* Defer all commands that can cause connections to a different network |
| * or put the state machine out of connect mode |
| */ |
| case CMD_STOP_DRIVER: |
| case CMD_SET_SCAN_MODE: |
| case WifiManager.CONNECT_NETWORK: |
| case CMD_ENABLE_NETWORK: |
| case CMD_RECONNECT: |
| case CMD_REASSOCIATE: |
| case WifiMonitor.NETWORK_CONNECTION_EVENT: /* Handled after exiting WPS state */ |
| deferMessage(message); |
| break; |
| case WifiMonitor.NETWORK_DISCONNECTION_EVENT: |
| if (DBG) log("Network connection lost"); |
| handleNetworkDisconnect(); |
| break; |
| case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: |
| // Disregard auth failure events during WPS connection. The |
| // EAP sequence is retried several times, and there might be |
| // failures (especially for wps pin). We will get a WPS_XXX |
| // event at the end of the sequence anyway. |
| if (DBG) log("Ignore auth failure during WPS connection"); |
| break; |
| case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: |
| //Throw away supplicant state changes when WPS is running. |
| //We will start getting supplicant state changes once we get |
| //a WPS success or failure |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| |
| @Override |
| public void exit() { |
| mWifiConfigStore.enableAllNetworks(); |
| mWifiConfigStore.loadConfiguredNetworks(); |
| } |
| } |
| |
| class SoftApStartingState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| |
| final Message message = getCurrentMessage(); |
| if (message.what == CMD_START_AP) { |
| final WifiConfiguration config = (WifiConfiguration) message.obj; |
| |
| if (config == null) { |
| mWifiApConfigChannel.sendMessage(CMD_REQUEST_AP_CONFIG); |
| } else { |
| mWifiApConfigChannel.sendMessage(CMD_SET_AP_CONFIG, config); |
| startSoftApWithConfig(config); |
| } |
| } else { |
| throw new RuntimeException("Illegal transition to SoftApStartingState: " + message); |
| } |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch(message.what) { |
| case CMD_LOAD_DRIVER: |
| case CMD_UNLOAD_DRIVER: |
| case CMD_START_SUPPLICANT: |
| case CMD_STOP_SUPPLICANT: |
| case CMD_START_AP: |
| case CMD_STOP_AP: |
| case CMD_START_DRIVER: |
| case CMD_STOP_DRIVER: |
| case CMD_SET_SCAN_MODE: |
| case CMD_SET_SCAN_TYPE: |
| case CMD_SET_COUNTRY_CODE: |
| case CMD_SET_FREQUENCY_BAND: |
| case CMD_START_PACKET_FILTERING: |
| case CMD_STOP_PACKET_FILTERING: |
| case CMD_TETHER_STATE_CHANGE: |
| deferMessage(message); |
| break; |
| case WifiStateMachine.CMD_RESPONSE_AP_CONFIG: |
| WifiConfiguration config = (WifiConfiguration) message.obj; |
| if (config != null) { |
| startSoftApWithConfig(config); |
| } else { |
| loge("Softap config is null!"); |
| sendMessage(CMD_START_AP_FAILURE); |
| } |
| break; |
| case CMD_START_AP_SUCCESS: |
| setWifiApState(WIFI_AP_STATE_ENABLED); |
| transitionTo(mSoftApStartedState); |
| break; |
| case CMD_START_AP_FAILURE: |
| // initiate driver unload |
| sendMessage(obtainMessage(CMD_UNLOAD_DRIVER, WIFI_AP_STATE_FAILED, 0)); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class SoftApStartedState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch(message.what) { |
| case CMD_STOP_AP: |
| if (DBG) log("Stopping Soft AP"); |
| setWifiApState(WIFI_AP_STATE_DISABLING); |
| |
| /* We have not tethered at this point, so we just shutdown soft Ap */ |
| try { |
| mNwService.stopAccessPoint(mInterfaceName); |
| } catch(Exception e) { |
| loge("Exception in stopAccessPoint()"); |
| } |
| transitionTo(mDriverLoadedState); |
| break; |
| case CMD_START_AP: |
| // Ignore a start on a running access point |
| break; |
| /* Fail client mode operation when soft AP is enabled */ |
| case CMD_START_SUPPLICANT: |
| loge("Cannot start supplicant with a running soft AP"); |
| setWifiState(WIFI_STATE_UNKNOWN); |
| break; |
| case CMD_TETHER_STATE_CHANGE: |
| TetherStateChange stateChange = (TetherStateChange) message.obj; |
| if (startTethering(stateChange.available)) { |
| transitionTo(mTetheringState); |
| } |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class TetheringState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| |
| /* Send ourselves a delayed message to shut down if tethering fails to notify */ |
| sendMessageDelayed(obtainMessage(CMD_TETHER_NOTIFICATION_TIMED_OUT, |
| ++mTetherToken, 0), TETHER_NOTIFICATION_TIME_OUT_MSECS); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch(message.what) { |
| case CMD_TETHER_STATE_CHANGE: |
| TetherStateChange stateChange = (TetherStateChange) message.obj; |
| if (isWifiTethered(stateChange.active)) { |
| transitionTo(mTetheredState); |
| } |
| return HANDLED; |
| case CMD_TETHER_NOTIFICATION_TIMED_OUT: |
| if (message.arg1 == mTetherToken) { |
| loge("Failed to get tether update, shutdown soft access point"); |
| setWifiApEnabled(null, false); |
| } |
| break; |
| case CMD_LOAD_DRIVER: |
| case CMD_UNLOAD_DRIVER: |
| case CMD_START_SUPPLICANT: |
| case CMD_STOP_SUPPLICANT: |
| case CMD_START_AP: |
| case CMD_STOP_AP: |
| case CMD_START_DRIVER: |
| case CMD_STOP_DRIVER: |
| case CMD_SET_SCAN_MODE: |
| case CMD_SET_SCAN_TYPE: |
| case CMD_SET_COUNTRY_CODE: |
| case CMD_SET_FREQUENCY_BAND: |
| case CMD_START_PACKET_FILTERING: |
| case CMD_STOP_PACKET_FILTERING: |
| deferMessage(message); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class TetheredState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch(message.what) { |
| case CMD_TETHER_STATE_CHANGE: |
| TetherStateChange stateChange = (TetherStateChange) message.obj; |
| if (!isWifiTethered(stateChange.active)) { |
| loge("Tethering reports wifi as untethered!, shut down soft Ap"); |
| setWifiApEnabled(null, false); |
| } |
| return HANDLED; |
| case CMD_STOP_AP: |
| if (DBG) log("Untethering before stopping AP"); |
| setWifiApState(WIFI_AP_STATE_DISABLING); |
| stopTethering(); |
| transitionTo(mSoftApStoppingState); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| class SoftApStoppingState extends State { |
| @Override |
| public void enter() { |
| if (DBG) log(getName() + "\n"); |
| EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName()); |
| |
| /* Send ourselves a delayed message to shut down if tethering fails to notify */ |
| sendMessageDelayed(obtainMessage(CMD_TETHER_NOTIFICATION_TIMED_OUT, |
| ++mTetherToken, 0), TETHER_NOTIFICATION_TIME_OUT_MSECS); |
| |
| } |
| @Override |
| public boolean processMessage(Message message) { |
| if (DBG) log(getName() + message.toString() + "\n"); |
| switch(message.what) { |
| case CMD_TETHER_STATE_CHANGE: |
| TetherStateChange stateChange = (TetherStateChange) message.obj; |
| |
| /* Wait till wifi is untethered */ |
| if (isWifiTethered(stateChange.active)) break; |
| |
| try { |
| mNwService.stopAccessPoint(mInterfaceName); |
| } catch(Exception e) { |
| loge("Exception in stopAccessPoint()"); |
| } |
| transitionTo(mDriverLoadedState); |
| break; |
| case CMD_TETHER_NOTIFICATION_TIMED_OUT: |
| if (message.arg1 == mTetherToken) { |
| loge("Failed to get tether update, force stop access point"); |
| try { |
| mNwService.stopAccessPoint(mInterfaceName); |
| } catch(Exception e) { |
| loge("Exception in stopAccessPoint()"); |
| } |
| transitionTo(mDriverLoadedState); |
| } |
| break; |
| case CMD_LOAD_DRIVER: |
| case CMD_UNLOAD_DRIVER: |
| case CMD_START_SUPPLICANT: |
| case CMD_STOP_SUPPLICANT: |
| case CMD_START_AP: |
| case CMD_STOP_AP: |
| case CMD_START_DRIVER: |
| case CMD_STOP_DRIVER: |
| case CMD_SET_SCAN_MODE: |
| case CMD_SET_SCAN_TYPE: |
| case CMD_SET_COUNTRY_CODE: |
| case CMD_SET_FREQUENCY_BAND: |
| case CMD_START_PACKET_FILTERING: |
| case CMD_STOP_PACKET_FILTERING: |
| deferMessage(message); |
| break; |
| default: |
| return NOT_HANDLED; |
| } |
| return HANDLED; |
| } |
| } |
| |
| //State machine initiated requests can have replyTo set to null indicating |
| //there are no recepients, we ignore those reply actions |
| private void replyToMessage(Message msg, int what) { |
| if (msg.replyTo == null) return; |
| Message dstMsg = obtainMessageWithArg2(msg); |
| dstMsg.what = what; |
| mReplyChannel.replyToMessage(msg, dstMsg); |
| } |
| |
| private void replyToMessage(Message msg, int what, int arg1) { |
| if (msg.replyTo == null) return; |
| Message dstMsg = obtainMessageWithArg2(msg); |
| dstMsg.what = what; |
| dstMsg.arg1 = arg1; |
| mReplyChannel.replyToMessage(msg, dstMsg); |
| } |
| |
| private void replyToMessage(Message msg, int what, Object obj) { |
| if (msg.replyTo == null) return; |
| Message dstMsg = obtainMessageWithArg2(msg); |
| dstMsg.what = what; |
| dstMsg.obj = obj; |
| mReplyChannel.replyToMessage(msg, dstMsg); |
| } |
| |
| /** |
| * arg2 on the source message has a unique id that needs to be retained in replies |
| * to match the request |
| * |
| * see WifiManager for details |
| */ |
| private Message obtainMessageWithArg2(Message srcMsg) { |
| Message msg = Message.obtain(); |
| msg.arg2 = srcMsg.arg2; |
| return msg; |
| } |
| |
| private void log(String s) { |
| Log.d(TAG, s); |
| } |
| |
| private void loge(String s) { |
| Log.e(TAG, s); |
| } |
| } |