9575a1bea1
- Create thread when needed - asynchronous interaction with wifi state machine Bug: 5587391 Change-Id: Ie6d01b5a6b398a3fa12c384920a473e242443131
3436 lines
139 KiB
Java
3436 lines
139 KiB
Java
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.net.wifi;
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import static android.net.wifi.WifiManager.WIFI_STATE_DISABLED;
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import static android.net.wifi.WifiManager.WIFI_STATE_DISABLING;
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import static android.net.wifi.WifiManager.WIFI_STATE_ENABLED;
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import static android.net.wifi.WifiManager.WIFI_STATE_ENABLING;
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import static android.net.wifi.WifiManager.WIFI_STATE_UNKNOWN;
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/**
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* TODO: Add soft AP states as part of WIFI_STATE_XXX
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* Retain WIFI_STATE_ENABLING that indicates driver is loading
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* Add WIFI_STATE_AP_ENABLED to indicate soft AP has started
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* and WIFI_STATE_FAILED for failure
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* Deprecate WIFI_STATE_UNKNOWN
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*
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* Doing this will simplify the logic for sending broadcasts
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*/
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import static android.net.wifi.WifiManager.WIFI_AP_STATE_DISABLED;
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import static android.net.wifi.WifiManager.WIFI_AP_STATE_DISABLING;
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import static android.net.wifi.WifiManager.WIFI_AP_STATE_ENABLED;
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import static android.net.wifi.WifiManager.WIFI_AP_STATE_ENABLING;
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import static android.net.wifi.WifiManager.WIFI_AP_STATE_FAILED;
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import android.app.AlarmManager;
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import android.app.PendingIntent;
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import android.app.backup.IBackupManager;
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import android.bluetooth.BluetoothAdapter;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.net.ConnectivityManager;
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import android.net.DhcpInfo;
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import android.net.DhcpInfoInternal;
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import android.net.DhcpStateMachine;
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import android.net.InterfaceConfiguration;
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import android.net.LinkAddress;
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import android.net.LinkProperties;
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import android.net.NetworkInfo;
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import android.net.NetworkInfo.DetailedState;
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import android.net.NetworkUtils;
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import android.net.wifi.WpsResult.Status;
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import android.net.wifi.p2p.WifiP2pManager;
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import android.net.wifi.p2p.WifiP2pService;
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import android.net.wifi.StateChangeResult;
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import android.os.Binder;
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import android.os.IBinder;
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import android.os.INetworkManagementService;
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import android.os.Message;
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import android.os.Messenger;
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import android.os.PowerManager;
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import android.os.Process;
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import android.os.RemoteException;
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import android.os.ServiceManager;
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import android.os.SystemClock;
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import android.os.SystemProperties;
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import android.os.WorkSource;
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import android.provider.Settings;
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import android.util.EventLog;
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import android.util.Log;
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import android.util.LruCache;
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import com.android.internal.app.IBatteryStats;
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import com.android.internal.util.AsyncChannel;
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import com.android.internal.util.Protocol;
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import com.android.internal.util.State;
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import com.android.internal.util.StateMachine;
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import java.net.InetAddress;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.concurrent.atomic.AtomicInteger;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.regex.Pattern;
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/**
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* Track the state of Wifi connectivity. All event handling is done here,
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* and all changes in connectivity state are initiated here.
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*
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* Wi-Fi now supports three modes of operation: Client, Soft Ap and Direct
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* In the current implementation, we do not support any concurrency and thus only
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* one of Client, Soft Ap or Direct operation is supported at any time.
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*
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* The WifiStateMachine supports Soft Ap and Client operations while WifiP2pService
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* handles Direct. WifiP2pService and WifiStateMachine co-ordinate to ensure only
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* one exists at a certain time.
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*
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* @hide
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*/
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public class WifiStateMachine extends StateMachine {
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private static final String TAG = "WifiStateMachine";
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private static final String NETWORKTYPE = "WIFI";
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private static final boolean DBG = false;
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/* TODO: This is no more used with the hostapd code. Clean up */
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private static final String SOFTAP_IFACE = "wl0.1";
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private WifiMonitor mWifiMonitor;
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private INetworkManagementService mNwService;
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private ConnectivityManager mCm;
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/* Scan results handling */
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private List<ScanResult> mScanResults;
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private static final Pattern scanResultPattern = Pattern.compile("\t+");
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private static final int SCAN_RESULT_CACHE_SIZE = 80;
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private final LruCache<String, ScanResult> mScanResultCache;
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private String mInterfaceName;
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private int mLastSignalLevel = -1;
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private String mLastBssid;
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private int mLastNetworkId;
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private boolean mEnableRssiPolling = false;
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private boolean mEnableBackgroundScan = false;
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private int mRssiPollToken = 0;
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private int mReconnectCount = 0;
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private boolean mIsScanMode = false;
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private boolean mScanResultIsPending = false;
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private boolean mBluetoothConnectionActive = false;
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/**
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* Interval in milliseconds between polling for RSSI
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* and linkspeed information
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*/
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private static final int POLL_RSSI_INTERVAL_MSECS = 3000;
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/**
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* Delay between supplicant restarts upon failure to establish connection
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*/
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private static final int SUPPLICANT_RESTART_INTERVAL_MSECS = 5000;
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/**
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* Number of times we attempt to restart supplicant
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*/
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private static final int SUPPLICANT_RESTART_TRIES = 5;
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private int mSupplicantRestartCount = 0;
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/* Tracks sequence number on stop failure message */
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private int mSupplicantStopFailureToken = 0;
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private LinkProperties mLinkProperties;
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// Wakelock held during wifi start/stop and driver load/unload
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private PowerManager.WakeLock mWakeLock;
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private Context mContext;
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private DhcpInfoInternal mDhcpInfoInternal;
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private WifiInfo mWifiInfo;
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private NetworkInfo mNetworkInfo;
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private SupplicantStateTracker mSupplicantStateTracker;
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private WpsStateMachine mWpsStateMachine;
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private DhcpStateMachine mDhcpStateMachine;
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private AlarmManager mAlarmManager;
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private PendingIntent mScanIntent;
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/* Tracks current frequency mode */
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private AtomicInteger mFrequencyBand = new AtomicInteger(WifiManager.WIFI_FREQUENCY_BAND_AUTO);
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/* Tracks if we are filtering Multicast v4 packets. Default is to filter. */
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private AtomicBoolean mFilteringMulticastV4Packets = new AtomicBoolean(true);
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// Channel for sending replies.
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private AsyncChannel mReplyChannel = new AsyncChannel();
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private WifiP2pManager mWifiP2pManager;
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//Used to initiate a connection with WifiP2pService
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private AsyncChannel mWifiP2pChannel = new AsyncChannel();
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private AsyncChannel mWifiApConfigChannel = new AsyncChannel();
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// Event log tags (must be in sync with event-log-tags)
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private static final int EVENTLOG_WIFI_STATE_CHANGED = 50021;
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private static final int EVENTLOG_WIFI_EVENT_HANDLED = 50022;
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private static final int EVENTLOG_SUPPLICANT_STATE_CHANGED = 50023;
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/* The base for wifi message types */
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static final int BASE = Protocol.BASE_WIFI;
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/* Load the driver */
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static final int CMD_LOAD_DRIVER = BASE + 1;
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/* Unload the driver */
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static final int CMD_UNLOAD_DRIVER = BASE + 2;
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/* Indicates driver load succeeded */
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static final int CMD_LOAD_DRIVER_SUCCESS = BASE + 3;
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/* Indicates driver load failed */
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static final int CMD_LOAD_DRIVER_FAILURE = BASE + 4;
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/* Indicates driver unload succeeded */
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static final int CMD_UNLOAD_DRIVER_SUCCESS = BASE + 5;
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/* Indicates driver unload failed */
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static final int CMD_UNLOAD_DRIVER_FAILURE = BASE + 6;
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/* Start the supplicant */
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static final int CMD_START_SUPPLICANT = BASE + 11;
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/* Stop the supplicant */
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static final int CMD_STOP_SUPPLICANT = BASE + 12;
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/* Start the driver */
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static final int CMD_START_DRIVER = BASE + 13;
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/* Stop the driver */
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static final int CMD_STOP_DRIVER = BASE + 14;
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/* Indicates Static IP succeded */
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static final int CMD_STATIC_IP_SUCCESS = BASE + 15;
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/* Indicates Static IP failed */
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static final int CMD_STATIC_IP_FAILURE = BASE + 16;
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/* Indicates supplicant stop failed */
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static final int CMD_STOP_SUPPLICANT_FAILED = BASE + 17;
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/* Delayed stop to avoid shutting down driver too quick*/
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static final int CMD_DELAYED_STOP_DRIVER = BASE + 18;
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/* Start the soft access point */
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static final int CMD_START_AP = BASE + 21;
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/* Indicates soft ap start succeded */
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static final int CMD_START_AP_SUCCESS = BASE + 22;
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/* Indicates soft ap start failed */
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static final int CMD_START_AP_FAILURE = BASE + 23;
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/* Stop the soft access point */
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static final int CMD_STOP_AP = BASE + 24;
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/* Set the soft access point configuration */
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static final int CMD_SET_AP_CONFIG = BASE + 25;
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/* Soft access point configuration set completed */
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static final int CMD_SET_AP_CONFIG_COMPLETED = BASE + 26;
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/* Request the soft access point configuration */
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static final int CMD_REQUEST_AP_CONFIG = BASE + 27;
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/* Response to access point configuration request */
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static final int CMD_RESPONSE_AP_CONFIG = BASE + 28;
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/* Set configuration on tether interface */
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static final int CMD_TETHER_INTERFACE = BASE + 29;
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static final int CMD_BLUETOOTH_ADAPTER_STATE_CHANGE = BASE + 30;
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/* Supplicant commands */
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/* Is supplicant alive ? */
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static final int CMD_PING_SUPPLICANT = BASE + 51;
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/* Add/update a network configuration */
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static final int CMD_ADD_OR_UPDATE_NETWORK = BASE + 52;
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/* Delete a network */
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static final int CMD_REMOVE_NETWORK = BASE + 53;
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/* Enable a network. The device will attempt a connection to the given network. */
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static final int CMD_ENABLE_NETWORK = BASE + 54;
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/* Enable all networks */
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static final int CMD_ENABLE_ALL_NETWORKS = BASE + 55;
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/* Disable a network. The device does not attempt a connection to the given network. */
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static final int CMD_DISABLE_NETWORK = BASE + 56;
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/* Blacklist network. De-prioritizes the given BSSID for connection. */
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static final int CMD_BLACKLIST_NETWORK = BASE + 57;
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/* Clear the blacklist network list */
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static final int CMD_CLEAR_BLACKLIST = BASE + 58;
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/* Save configuration */
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static final int CMD_SAVE_CONFIG = BASE + 59;
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/* Supplicant commands after driver start*/
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/* Initiate a scan */
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static final int CMD_START_SCAN = BASE + 71;
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/* Set scan mode. CONNECT_MODE or SCAN_ONLY_MODE */
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static final int CMD_SET_SCAN_MODE = BASE + 72;
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/* Set scan type. SCAN_ACTIVE or SCAN_PASSIVE */
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static final int CMD_SET_SCAN_TYPE = BASE + 73;
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/* Disconnect from a network */
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static final int CMD_DISCONNECT = BASE + 74;
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/* Reconnect to a network */
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static final int CMD_RECONNECT = BASE + 75;
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/* Reassociate to a network */
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static final int CMD_REASSOCIATE = BASE + 76;
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/* Controls power mode and suspend mode optimizations
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*
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* When high perf mode is enabled, power mode is set to
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* POWER_MODE_ACTIVE and suspend mode optimizations are disabled
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*
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* When high perf mode is disabled, power mode is set to
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* POWER_MODE_AUTO and suspend mode optimizations are enabled
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*
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* Suspend mode optimizations include:
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* - packet filtering
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* - turn off roaming
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* - DTIM wake up settings
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*/
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static final int CMD_SET_HIGH_PERF_MODE = BASE + 77;
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/* Set the country code */
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static final int CMD_SET_COUNTRY_CODE = BASE + 80;
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/* Request connectivity manager wake lock before driver stop */
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static final int CMD_REQUEST_CM_WAKELOCK = BASE + 81;
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/* Enables RSSI poll */
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static final int CMD_ENABLE_RSSI_POLL = BASE + 82;
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/* RSSI poll */
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static final int CMD_RSSI_POLL = BASE + 83;
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/* Set up packet filtering */
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static final int CMD_START_PACKET_FILTERING = BASE + 84;
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/* Clear packet filter */
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static final int CMD_STOP_PACKET_FILTERING = BASE + 85;
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/* arg1 values to CMD_STOP_PACKET_FILTERING and CMD_START_PACKET_FILTERING */
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static final int MULTICAST_V6 = 1;
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static final int MULTICAST_V4 = 0;
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/* Connect to a specified network (network id
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* or WifiConfiguration) This involves increasing
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* the priority of the network, enabling the network
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* (while disabling others) and issuing a reconnect.
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* Note that CMD_RECONNECT just does a reconnect to
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* an existing network. All the networks get enabled
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* upon a successful connection or a failure.
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*/
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static final int CMD_CONNECT_NETWORK = BASE + 86;
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/* Save the specified network. This involves adding
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* an enabled network (if new) and updating the
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* config and issuing a save on supplicant config.
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*/
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static final int CMD_SAVE_NETWORK = BASE + 87;
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/* Delete the specified network. This involves
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* removing the network and issuing a save on
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* supplicant config.
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*/
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static final int CMD_FORGET_NETWORK = BASE + 88;
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/* Start Wi-Fi protected setup */
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static final int CMD_START_WPS = BASE + 89;
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/* Set the frequency band */
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static final int CMD_SET_FREQUENCY_BAND = BASE + 90;
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/* Enable background scan for configured networks */
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static final int CMD_ENABLE_BACKGROUND_SCAN = BASE + 91;
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/* Commands from/to the SupplicantStateTracker */
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/* Reset the supplicant state tracker */
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static final int CMD_RESET_SUPPLICANT_STATE = BASE + 111;
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/* Commands/events reported by WpsStateMachine */
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/* Indicates the completion of WPS activity */
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static final int WPS_COMPLETED_EVENT = BASE + 121;
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/* Reset the WPS state machine */
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static final int CMD_RESET_WPS_STATE = BASE + 122;
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/* Interaction with WifiP2pService */
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public static final int WIFI_ENABLE_PENDING = BASE + 131;
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public static final int P2P_ENABLE_PROCEED = BASE + 132;
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private static final int CONNECT_MODE = 1;
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private static final int SCAN_ONLY_MODE = 2;
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private static final int SCAN_ACTIVE = 1;
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private static final int SCAN_PASSIVE = 2;
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private static final int SUCCESS = 1;
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private static final int FAILURE = -1;
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/**
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* The maximum number of times we will retry a connection to an access point
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* for which we have failed in acquiring an IP address from DHCP. A value of
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* N means that we will make N+1 connection attempts in all.
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* <p>
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* See {@link Settings.Secure#WIFI_MAX_DHCP_RETRY_COUNT}. This is the default
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* value if a Settings value is not present.
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*/
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private static final int DEFAULT_MAX_DHCP_RETRIES = 9;
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static final int POWER_MODE_ACTIVE = 1;
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static final int POWER_MODE_AUTO = 0;
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/* Tracks the power mode for restoration after a DHCP request/renewal goes through */
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private int mPowerMode = POWER_MODE_AUTO;
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/**
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* Default framework scan interval in milliseconds. This is used in the scenario in which
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* wifi chipset does not support background scanning to set up a
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* periodic wake up scan so that the device can connect to a new access
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* point on the move. {@link Settings.Secure#WIFI_FRAMEWORK_SCAN_INTERVAL_MS} can
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* override this.
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*/
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private final int mDefaultFrameworkScanIntervalMs;
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/**
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* Default supplicant scan interval in milliseconds.
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* {@link Settings.Secure#WIFI_SUPPLICANT_SCAN_INTERVAL_MS} can override this.
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*/
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private final int mDefaultSupplicantScanIntervalMs;
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/**
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* Minimum time interval between enabling all networks.
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* A device can end up repeatedly connecting to a bad network on screen on/off toggle
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* due to enabling every time. We add a threshold to avoid this.
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*/
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private static final int MIN_INTERVAL_ENABLE_ALL_NETWORKS_MS = 10 * 60 * 1000; /* 10 minutes */
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private long mLastEnableAllNetworksTime;
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/**
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* Starting and shutting down driver too quick causes problems leading to driver
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* being in a bad state. Delay driver stop.
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*/
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private static final int DELAYED_DRIVER_STOP_MS = 2 * 60 * 1000; /* 2 minutes */
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private int mDelayedStopCounter;
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private boolean mInDelayedStop = false;
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private static final int MIN_RSSI = -200;
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private static final int MAX_RSSI = 256;
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/* Default parent state */
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private State mDefaultState = new DefaultState();
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/* Temporary initial state */
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private State mInitialState = new InitialState();
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/* Unloading the driver */
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private State mDriverUnloadingState = new DriverUnloadingState();
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/* Loading the driver */
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private State mDriverUnloadedState = new DriverUnloadedState();
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/* Driver load/unload failed */
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private State mDriverFailedState = new DriverFailedState();
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/* Driver loading */
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private State mDriverLoadingState = new DriverLoadingState();
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/* Driver loaded */
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private State mDriverLoadedState = new DriverLoadedState();
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/* Driver loaded, waiting for supplicant to start */
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private State mSupplicantStartingState = new SupplicantStartingState();
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/* Driver loaded and supplicant ready */
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private State mSupplicantStartedState = new SupplicantStartedState();
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/* Waiting for supplicant to stop and monitor to exit */
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private State mSupplicantStoppingState = new SupplicantStoppingState();
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/* Driver start issued, waiting for completed event */
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private State mDriverStartingState = new DriverStartingState();
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/* Driver started */
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private State mDriverStartedState = new DriverStartedState();
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/* Driver stopping */
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private State mDriverStoppingState = new DriverStoppingState();
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/* Driver stopped */
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private State mDriverStoppedState = new DriverStoppedState();
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/* Scan for networks, no connection will be established */
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private State mScanModeState = new ScanModeState();
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/* Connecting to an access point */
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private State mConnectModeState = new ConnectModeState();
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/* Fetching IP after network connection (assoc+auth complete) */
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private State mConnectingState = new ConnectingState();
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/* Connected with IP addr */
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private State mConnectedState = new ConnectedState();
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/* disconnect issued, waiting for network disconnect confirmation */
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private State mDisconnectingState = new DisconnectingState();
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/* Network is not connected, supplicant assoc+auth is not complete */
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private State mDisconnectedState = new DisconnectedState();
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/* Waiting for WPS to be completed*/
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private State mWaitForWpsCompletionState = new WaitForWpsCompletionState();
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|
|
|
/* 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 tethered through connectivity service */
|
|
private State mTetheredState = new TetheredState();
|
|
|
|
/* Wait till p2p is disabled */
|
|
private State mWaitForP2pDisableState = new WaitForP2pDisableState();
|
|
|
|
|
|
/**
|
|
* 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";
|
|
|
|
/**
|
|
* 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;
|
|
private boolean mNextWifiActionExplicit = false;
|
|
private int mLastExplicitNetworkId;
|
|
private long mLastNetworkChoiceTime;
|
|
private static final long EXPLICIT_CONNECT_ALLOWED_DELAY_MS = 2 * 60 * 1000;
|
|
|
|
|
|
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);
|
|
|
|
mWifiMonitor = new WifiMonitor(this);
|
|
mDhcpInfoInternal = new DhcpInfoInternal();
|
|
mWifiInfo = new WifiInfo();
|
|
mSupplicantStateTracker = new SupplicantStateTracker(context, this, getHandler());
|
|
mWpsStateMachine = new WpsStateMachine(context, this, 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);
|
|
|
|
mDefaultSupplicantScanIntervalMs = mContext.getResources().getInteger(
|
|
com.android.internal.R.integer.config_wifi_supplicant_scan_interval);
|
|
|
|
mContext.registerReceiver(
|
|
new BroadcastReceiver() {
|
|
@Override
|
|
public void onReceive(Context context, Intent intent) {
|
|
ArrayList<String> available = intent.getStringArrayListExtra(
|
|
ConnectivityManager.EXTRA_AVAILABLE_TETHER);
|
|
sendMessage(CMD_TETHER_INTERFACE, available);
|
|
}
|
|
},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));
|
|
|
|
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);
|
|
|
|
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(mConnectingState, mConnectModeState);
|
|
addState(mConnectedState, mConnectModeState);
|
|
addState(mDisconnectingState, mConnectModeState);
|
|
addState(mDisconnectedState, mConnectModeState);
|
|
addState(mWaitForWpsCompletionState, mConnectModeState);
|
|
addState(mDriverStoppingState, mSupplicantStartedState);
|
|
addState(mDriverStoppedState, mSupplicantStartedState);
|
|
addState(mSupplicantStoppingState, mDefaultState);
|
|
addState(mSoftApStartingState, mDefaultState);
|
|
addState(mSoftApStartedState, mDefaultState);
|
|
addState(mTetheredState, mSoftApStartedState);
|
|
addState(mWaitForP2pDisableState, mDefaultState);
|
|
|
|
setInitialState(mInitialState);
|
|
|
|
if (DBG) setDbg(true);
|
|
|
|
//start the state machine
|
|
start();
|
|
}
|
|
|
|
/*********************************************************
|
|
* Methods exposed for public use
|
|
********************************************************/
|
|
|
|
/**
|
|
* 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) {
|
|
if (enable) {
|
|
sendMessage(CMD_START_DRIVER);
|
|
} else {
|
|
sendMessage(CMD_STOP_DRIVER);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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() {
|
|
return mScanResults;
|
|
}
|
|
|
|
/**
|
|
* 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() {
|
|
return WifiConfigStore.getConfiguredNetworks();
|
|
}
|
|
|
|
/**
|
|
* 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(CMD_DISABLE_NETWORK, netId,
|
|
WifiConfiguration.DISABLED_UNKNOWN_REASON);
|
|
boolean result = (resultMsg.arg1 != FAILURE);
|
|
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 connectNetwork(int netId) {
|
|
sendMessage(obtainMessage(CMD_CONNECT_NETWORK, netId, 0));
|
|
}
|
|
|
|
public void connectNetwork(WifiConfiguration wifiConfig) {
|
|
/* arg1 is used to indicate netId, force a netId value of
|
|
* WifiConfiguration.INVALID_NETWORK_ID when we are passing
|
|
* a configuration since the default value of 0 is a valid netId
|
|
*/
|
|
sendMessage(obtainMessage(CMD_CONNECT_NETWORK, WifiConfiguration.INVALID_NETWORK_ID,
|
|
0, wifiConfig));
|
|
}
|
|
|
|
public void saveNetwork(WifiConfiguration wifiConfig) {
|
|
sendMessage(obtainMessage(CMD_SAVE_NETWORK, wifiConfig));
|
|
}
|
|
|
|
public void forgetNetwork(int netId) {
|
|
sendMessage(obtainMessage(CMD_FORGET_NETWORK, netId, 0));
|
|
}
|
|
|
|
public void disableNetwork(Messenger replyTo, int netId, int reason) {
|
|
Message message = obtainMessage(CMD_DISABLE_NETWORK, netId, reason);
|
|
message.replyTo = replyTo;
|
|
sendMessage(message);
|
|
}
|
|
|
|
public void startWps(Messenger replyTo, WpsInfo config) {
|
|
Message msg = obtainMessage(CMD_START_WPS, config);
|
|
msg.replyTo = replyTo;
|
|
sendMessage(msg);
|
|
}
|
|
|
|
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 WifiConfigStore.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;
|
|
}
|
|
|
|
/**
|
|
* Request a wakelock with connectivity service to
|
|
* keep the device awake until we hand-off from wifi
|
|
* to an alternate network
|
|
*/
|
|
public void requestCmWakeLock() {
|
|
sendMessage(CMD_REQUEST_CM_WAKELOCK);
|
|
}
|
|
|
|
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("Supplicant status").append(LS)
|
|
.append(WifiNative.statusCommand()).append(LS).append(LS);
|
|
|
|
sb.append(WifiConfigStore.dump());
|
|
return sb.toString();
|
|
}
|
|
|
|
/*********************************************************
|
|
* 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.addr = new LinkAddress(NetworkUtils.numericToInetAddress(
|
|
"192.168.43.1"), 24);
|
|
ifcg.interfaceFlags = "[up]";
|
|
|
|
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;
|
|
}
|
|
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(mInterfaceName);
|
|
if (ifcg != null) {
|
|
ifcg.addr = new LinkAddress(NetworkUtils.numericToInetAddress(
|
|
"0.0.0.0"), 0);
|
|
mNwService.setInterfaceConfig(mInterfaceName, ifcg);
|
|
}
|
|
} catch (Exception e) {
|
|
loge("Error resetting interface " + mInterfaceName + ", :" + e);
|
|
}
|
|
|
|
if (mCm.untether(mInterfaceName) != ConnectivityManager.TETHER_ERROR_NO_ERROR) {
|
|
loge("Untether initiate failed!");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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.sendStickyBroadcast(intent);
|
|
}
|
|
|
|
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.sendStickyBroadcast(intent);
|
|
}
|
|
|
|
/**
|
|
* Parse the scan result line passed to us by wpa_supplicant (helper).
|
|
* @param line the line to parse
|
|
* @return the {@link ScanResult} object
|
|
*/
|
|
private ScanResult parseScanResult(String line) {
|
|
ScanResult scanResult = null;
|
|
if (line != null) {
|
|
/*
|
|
* Cache implementation (LinkedHashMap) is not synchronized, thus,
|
|
* must synchronized here!
|
|
*/
|
|
synchronized (mScanResultCache) {
|
|
String[] result = scanResultPattern.split(line);
|
|
if (3 <= result.length && result.length <= 5) {
|
|
String bssid = result[0];
|
|
// bssid | frequency | level | flags | ssid
|
|
int frequency;
|
|
int level;
|
|
try {
|
|
frequency = Integer.parseInt(result[1]);
|
|
level = Integer.parseInt(result[2]);
|
|
/* some implementations avoid negative values by adding 256
|
|
* so we need to adjust for that here.
|
|
*/
|
|
if (level > 0) level -= 256;
|
|
} catch (NumberFormatException e) {
|
|
frequency = 0;
|
|
level = 0;
|
|
}
|
|
|
|
/*
|
|
* The formatting of the results returned by
|
|
* wpa_supplicant is intended to make the fields
|
|
* line up nicely when printed,
|
|
* not to make them easy to parse. So we have to
|
|
* apply some heuristics to figure out which field
|
|
* is the SSID and which field is the flags.
|
|
*/
|
|
String ssid;
|
|
String flags;
|
|
if (result.length == 4) {
|
|
if (result[3].charAt(0) == '[') {
|
|
flags = result[3];
|
|
ssid = "";
|
|
} else {
|
|
flags = "";
|
|
ssid = result[3];
|
|
}
|
|
} else if (result.length == 5) {
|
|
flags = result[3];
|
|
ssid = result[4];
|
|
} else {
|
|
// Here, we must have 3 fields: no flags and ssid
|
|
// set
|
|
flags = "";
|
|
ssid = "";
|
|
}
|
|
|
|
// bssid + ssid is the hash key
|
|
String key = bssid + ssid;
|
|
scanResult = mScanResultCache.get(key);
|
|
if (scanResult != null) {
|
|
scanResult.level = level;
|
|
scanResult.SSID = ssid;
|
|
scanResult.capabilities = flags;
|
|
scanResult.frequency = frequency;
|
|
} else {
|
|
// Do not add scan results that have no SSID set
|
|
if (0 < ssid.trim().length()) {
|
|
scanResult =
|
|
new ScanResult(
|
|
ssid, bssid, flags, level, frequency);
|
|
mScanResultCache.put(key, scanResult);
|
|
}
|
|
}
|
|
} else {
|
|
loge("Misformatted scan result text with " +
|
|
result.length + " fields: " + line);
|
|
}
|
|
}
|
|
}
|
|
|
|
return scanResult;
|
|
}
|
|
|
|
/**
|
|
* scanResults input format
|
|
* 00:bb:cc:dd:cc:ee 2427 166 [WPA-EAP-TKIP][WPA2-EAP-CCMP] Net1
|
|
* 00:bb:cc:dd:cc:ff 2412 165 [WPA-EAP-TKIP][WPA2-EAP-CCMP] Net2
|
|
*/
|
|
private void setScanResults(String scanResults) {
|
|
if (scanResults == null) {
|
|
return;
|
|
}
|
|
|
|
List<ScanResult> scanList = new ArrayList<ScanResult>();
|
|
|
|
int lineCount = 0;
|
|
|
|
int scanResultsLen = scanResults.length();
|
|
// Parse the result string, keeping in mind that the last line does
|
|
// not end with a newline.
|
|
for (int lineBeg = 0, lineEnd = 0; lineEnd <= scanResultsLen; ++lineEnd) {
|
|
if (lineEnd == scanResultsLen || scanResults.charAt(lineEnd) == '\n') {
|
|
++lineCount;
|
|
|
|
if (lineCount == 1) {
|
|
lineBeg = lineEnd + 1;
|
|
continue;
|
|
}
|
|
if (lineEnd > lineBeg) {
|
|
String line = scanResults.substring(lineBeg, lineEnd);
|
|
ScanResult scanResult = parseScanResult(line);
|
|
if (scanResult != null) {
|
|
scanList.add(scanResult);
|
|
} else {
|
|
//TODO: hidden network handling
|
|
}
|
|
}
|
|
lineBeg = lineEnd + 1;
|
|
}
|
|
}
|
|
|
|
mScanResults = scanList;
|
|
}
|
|
|
|
private String fetchSSID() {
|
|
String status = WifiNative.statusCommand();
|
|
if (status == null) {
|
|
return null;
|
|
}
|
|
// extract ssid from a series of "name=value"
|
|
String[] lines = status.split("\n");
|
|
for (String line : lines) {
|
|
String[] prop = line.split(" *= *");
|
|
if (prop.length < 2) continue;
|
|
String name = prop[0];
|
|
String value = prop[1];
|
|
if (name.equalsIgnoreCase("ssid")) return value;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/*
|
|
* Fetch RSSI and linkspeed on current connection
|
|
*/
|
|
private void fetchRssiAndLinkSpeedNative() {
|
|
int newRssi = -1;
|
|
int newLinkSpeed = -1;
|
|
|
|
String signalPoll = WifiNative.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 mWifiInforming others
|
|
* interested in RSSI of all the changes in signal
|
|
* level.
|
|
*/
|
|
// TODO: The second arg to the call below needs to be a symbol somewhere, but
|
|
// it's actually the size of an array of icons that's private
|
|
// to StatusBar Policy.
|
|
int newSignalLevel = WifiManager.calculateSignalLevel(newRssi, 4);
|
|
if (newSignalLevel != mLastSignalLevel) {
|
|
sendRssiChangeBroadcast(newRssi);
|
|
}
|
|
mLastSignalLevel = newSignalLevel;
|
|
} else {
|
|
mWifiInfo.setRssi(MIN_RSSI);
|
|
}
|
|
|
|
if (newLinkSpeed != -1) {
|
|
mWifiInfo.setLinkSpeed(newLinkSpeed);
|
|
}
|
|
}
|
|
|
|
private void setHighPerfModeEnabledNative(boolean enable) {
|
|
if(!WifiNative.setSuspendOptimizationsCommand(!enable)) {
|
|
loge("set suspend optimizations failed!");
|
|
}
|
|
if (enable) {
|
|
if (!WifiNative.setPowerModeCommand(POWER_MODE_ACTIVE)) {
|
|
loge("set power mode active failed!");
|
|
}
|
|
} else {
|
|
if (!WifiNative.setPowerModeCommand(POWER_MODE_AUTO)) {
|
|
loge("set power mode auto failed!");
|
|
}
|
|
}
|
|
}
|
|
|
|
private void configureLinkProperties() {
|
|
if (WifiConfigStore.isUsingStaticIp(mLastNetworkId)) {
|
|
mLinkProperties = WifiConfigStore.getLinkProperties(mLastNetworkId);
|
|
} else {
|
|
synchronized (mDhcpInfoInternal) {
|
|
mLinkProperties = mDhcpInfoInternal.makeLinkProperties();
|
|
}
|
|
mLinkProperties.setHttpProxy(WifiConfigStore.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.sendBroadcast(intent);
|
|
}
|
|
|
|
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.sendBroadcast(intent);
|
|
}
|
|
|
|
private void sendNetworkStateChangeBroadcast(String bssid) {
|
|
Intent intent = new Intent(WifiManager.NETWORK_STATE_CHANGED_ACTION);
|
|
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT
|
|
| Intent.FLAG_RECEIVER_REPLACE_PENDING);
|
|
intent.putExtra(WifiManager.EXTRA_NETWORK_INFO, mNetworkInfo);
|
|
intent.putExtra(WifiManager.EXTRA_LINK_PROPERTIES, new LinkProperties (mLinkProperties));
|
|
if (bssid != null)
|
|
intent.putExtra(WifiManager.EXTRA_BSSID, bssid);
|
|
if (mNetworkInfo.getState() == NetworkInfo.State.CONNECTED)
|
|
intent.putExtra(WifiManager.EXTRA_WIFI_INFO, new WifiInfo(mWifiInfo));
|
|
mContext.sendStickyBroadcast(intent);
|
|
}
|
|
|
|
private void sendErrorBroadcast(int errorCode) {
|
|
Intent intent = new Intent(WifiManager.ERROR_ACTION);
|
|
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
|
|
intent.putExtra(WifiManager.EXTRA_ERROR_CODE, errorCode);
|
|
mContext.sendBroadcast(intent);
|
|
}
|
|
|
|
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.sendBroadcast(intent);
|
|
}
|
|
|
|
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.sendBroadcast(intent);
|
|
}
|
|
|
|
/**
|
|
* 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, null);
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
if (state == SupplicantState.ASSOCIATING) {
|
|
/* BSSID is valid only in ASSOCIATING state */
|
|
mWifiInfo.setBSSID(stateChangeResult.BSSID);
|
|
}
|
|
|
|
mSupplicantStateTracker.sendMessage(Message.obtain(message));
|
|
mWpsStateMachine.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) {
|
|
mDhcpStateMachine.sendMessage(DhcpStateMachine.CMD_STOP_DHCP);
|
|
mDhcpStateMachine.quit();
|
|
mDhcpStateMachine = null;
|
|
}
|
|
|
|
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.setExplicitConnect(false);
|
|
|
|
/* send event to CM & network change broadcast */
|
|
setNetworkDetailedState(DetailedState.DISCONNECTED);
|
|
sendNetworkStateChangeBroadcast(mLastBssid);
|
|
|
|
/* Clear network properties */
|
|
mLinkProperties.clear();
|
|
/* Clear IP settings if the network used DHCP */
|
|
if (!WifiConfigStore.isUsingStaticIp(mLastNetworkId)) {
|
|
WifiConfigStore.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
|
|
WifiNative.setBluetoothCoexistenceModeCommand(
|
|
WifiNative.BLUETOOTH_COEXISTENCE_MODE_DISABLED);
|
|
}
|
|
|
|
mPowerMode = WifiNative.getPowerModeCommand();
|
|
if (mPowerMode < 0) {
|
|
// Handle the case where supplicant driver does not support
|
|
// getPowerModeCommand.
|
|
mPowerMode = WifiStateMachine.POWER_MODE_AUTO;
|
|
}
|
|
if (mPowerMode != WifiStateMachine.POWER_MODE_ACTIVE) {
|
|
WifiNative.setPowerModeCommand(WifiStateMachine.POWER_MODE_ACTIVE);
|
|
}
|
|
}
|
|
|
|
|
|
void handlePostDhcpSetup() {
|
|
/* restore power mode */
|
|
WifiNative.setPowerModeCommand(mPowerMode);
|
|
|
|
// Set the coexistence mode back to its default value
|
|
WifiNative.setBluetoothCoexistenceModeCommand(
|
|
WifiNative.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
|
|
WifiConfigStore.setIpConfiguration(mLastNetworkId, dhcpInfoInternal);
|
|
InetAddress addr = NetworkUtils.numericToInetAddress(dhcpInfoInternal.ipAddress);
|
|
mWifiInfo.setInetAddress(addr);
|
|
if (getNetworkDetailedState() == DetailedState.CONNECTED) {
|
|
//DHCP renewal in connected state
|
|
LinkProperties linkProperties = dhcpInfoInternal.makeLinkProperties();
|
|
linkProperties.setHttpProxy(WifiConfigStore.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();
|
|
setNetworkDetailedState(DetailedState.CONNECTED);
|
|
sendNetworkStateChangeBroadcast(mLastBssid);
|
|
}
|
|
}
|
|
|
|
private void handleFailedIpConfiguration() {
|
|
loge("IP configuration failed");
|
|
|
|
mWifiInfo.setInetAddress(null);
|
|
/**
|
|
* If we've exceeded the maximum number of retries for DHCP
|
|
* to a given network, disable the network
|
|
*/
|
|
if (++mReconnectCount > getMaxDhcpRetries()) {
|
|
loge("Failed " +
|
|
mReconnectCount + " times, Disabling " + mLastNetworkId);
|
|
WifiConfigStore.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
|
|
*/
|
|
WifiNative.disconnectCommand();
|
|
WifiNative.reconnectCommand();
|
|
}
|
|
|
|
/* 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, SOFTAP_IFACE);
|
|
} catch (Exception e) {
|
|
loge("Exception in softap start " + e);
|
|
try {
|
|
mNwService.stopAccessPoint(mInterfaceName);
|
|
mNwService.startAccessPoint(config, mInterfaceName, SOFTAP_IFACE);
|
|
} 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_DISABLE_NETWORK:
|
|
case CMD_ADD_OR_UPDATE_NETWORK:
|
|
case CMD_REMOVE_NETWORK:
|
|
case CMD_SAVE_CONFIG:
|
|
mReplyChannel.replyToMessage(message, message.what, FAILURE);
|
|
break;
|
|
case CMD_ENABLE_RSSI_POLL:
|
|
mEnableRssiPolling = (message.arg1 == 1);
|
|
break;
|
|
case CMD_ENABLE_BACKGROUND_SCAN:
|
|
mEnableBackgroundScan = (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_START_AP:
|
|
case CMD_START_AP_SUCCESS:
|
|
case CMD_START_AP_FAILURE:
|
|
case CMD_STOP_AP:
|
|
case CMD_TETHER_INTERFACE:
|
|
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_HIGH_PERF_MODE:
|
|
case CMD_SET_COUNTRY_CODE:
|
|
case CMD_SET_FREQUENCY_BAND:
|
|
case CMD_REQUEST_CM_WAKELOCK:
|
|
case CMD_CONNECT_NETWORK:
|
|
case CMD_SAVE_NETWORK:
|
|
case CMD_FORGET_NETWORK:
|
|
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:
|
|
break;
|
|
case WifiMonitor.DRIVER_HUNG_EVENT:
|
|
setWifiEnabled(false);
|
|
setWifiEnabled(true);
|
|
break;
|
|
case CMD_START_WPS:
|
|
/* Return failure when the state machine cannot handle WPS initiation*/
|
|
mReplyChannel.replyToMessage(message, WifiManager.CMD_WPS_COMPLETED,
|
|
new WpsResult(Status.FAILURE));
|
|
break;
|
|
case WifiP2pService.P2P_ENABLE_PENDING:
|
|
// turn off wifi and defer to be handled in DriverUnloadedState
|
|
setWifiEnabled(false);
|
|
deferMessage(message);
|
|
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 (WifiNative.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(WifiNative.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_HIGH_PERF_MODE:
|
|
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;
|
|
}
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
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(WifiNative.startSupplicant()) {
|
|
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;
|
|
}
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
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(WifiNative.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_HIGH_PERF_MODE:
|
|
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;
|
|
}
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
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:
|
|
mWifiP2pChannel.sendMessage(WIFI_ENABLE_PENDING);
|
|
transitionTo(mWaitForP2pDisableState);
|
|
break;
|
|
case WifiP2pService.P2P_ENABLE_PENDING:
|
|
mReplyChannel.replyToMessage(message, P2P_ENABLE_PROCEED);
|
|
break;
|
|
default:
|
|
return NOT_HANDLED;
|
|
}
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
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());
|
|
}
|
|
@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);
|
|
mWpsStateMachine.sendMessage(CMD_RESET_WPS_STATE);
|
|
/* Initialize data structures */
|
|
mLastBssid = null;
|
|
mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID;
|
|
mLastSignalLevel = -1;
|
|
|
|
mWifiInfo.setMacAddress(WifiNative.getMacAddressCommand());
|
|
|
|
WifiConfigStore.initialize(mContext);
|
|
|
|
sendSupplicantConnectionChangedBroadcast(true);
|
|
transitionTo(mDriverStartedState);
|
|
break;
|
|
case WifiMonitor.SUP_DISCONNECTION_EVENT:
|
|
if (++mSupplicantRestartCount <= SUPPLICANT_RESTART_TRIES) {
|
|
loge("Failed to setup control channel, restart supplicant");
|
|
WifiNative.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_HIGH_PERF_MODE:
|
|
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;
|
|
}
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
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);
|
|
/* Set scan interval */
|
|
long supplicantScanIntervalMs = Settings.Secure.getLong(mContext.getContentResolver(),
|
|
Settings.Secure.WIFI_SUPPLICANT_SCAN_INTERVAL_MS,
|
|
mDefaultSupplicantScanIntervalMs);
|
|
WifiNative.setScanIntervalCommand((int)supplicantScanIntervalMs / 1000);
|
|
}
|
|
@Override
|
|
public boolean processMessage(Message message) {
|
|
if (DBG) log(getName() + message.toString() + "\n");
|
|
WifiConfiguration config;
|
|
boolean eventLoggingEnabled = true;
|
|
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");
|
|
WifiNative.killSupplicant();
|
|
WifiNative.closeSupplicantConnection();
|
|
mNetworkInfo.setIsAvailable(false);
|
|
handleNetworkDisconnect();
|
|
sendSupplicantConnectionChangedBroadcast(false);
|
|
mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE);
|
|
mWpsStateMachine.sendMessage(CMD_RESET_WPS_STATE);
|
|
transitionTo(mDriverLoadedState);
|
|
sendMessageDelayed(CMD_START_SUPPLICANT, SUPPLICANT_RESTART_INTERVAL_MSECS);
|
|
break;
|
|
case WifiMonitor.SCAN_RESULTS_EVENT:
|
|
eventLoggingEnabled = false;
|
|
setScanResults(WifiNative.scanResultsCommand());
|
|
sendScanResultsAvailableBroadcast();
|
|
mScanResultIsPending = false;
|
|
break;
|
|
case CMD_PING_SUPPLICANT:
|
|
boolean ok = WifiNative.pingCommand();
|
|
mReplyChannel.replyToMessage(message, message.what, ok ? SUCCESS : FAILURE);
|
|
break;
|
|
case CMD_ADD_OR_UPDATE_NETWORK:
|
|
config = (WifiConfiguration) message.obj;
|
|
mReplyChannel.replyToMessage(message, CMD_ADD_OR_UPDATE_NETWORK,
|
|
WifiConfigStore.addOrUpdateNetwork(config));
|
|
break;
|
|
case CMD_REMOVE_NETWORK:
|
|
ok = WifiConfigStore.removeNetwork(message.arg1);
|
|
mReplyChannel.replyToMessage(message, message.what, ok ? SUCCESS : FAILURE);
|
|
break;
|
|
case CMD_ENABLE_NETWORK:
|
|
ok = WifiConfigStore.enableNetwork(message.arg1, message.arg2 == 1);
|
|
mReplyChannel.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) {
|
|
WifiConfigStore.enableAllNetworks();
|
|
mLastEnableAllNetworksTime = time;
|
|
}
|
|
break;
|
|
case CMD_DISABLE_NETWORK:
|
|
ok = WifiConfigStore.disableNetwork(message.arg1, message.arg2);
|
|
mReplyChannel.replyToMessage(message, message.what, ok ? SUCCESS : FAILURE);
|
|
break;
|
|
case CMD_BLACKLIST_NETWORK:
|
|
WifiNative.addToBlacklistCommand((String)message.obj);
|
|
break;
|
|
case CMD_CLEAR_BLACKLIST:
|
|
WifiNative.clearBlacklistCommand();
|
|
break;
|
|
case CMD_SAVE_CONFIG:
|
|
ok = WifiConfigStore.saveConfig();
|
|
mReplyChannel.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;
|
|
/* 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 CMD_SAVE_NETWORK:
|
|
config = (WifiConfiguration) message.obj;
|
|
WifiConfigStore.saveNetwork(config);
|
|
break;
|
|
case CMD_FORGET_NETWORK:
|
|
WifiConfigStore.forgetNetwork(message.arg1);
|
|
break;
|
|
default:
|
|
return NOT_HANDLED;
|
|
}
|
|
if (eventLoggingEnabled) {
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
}
|
|
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());
|
|
if (DBG) log("stopping supplicant");
|
|
if (!WifiNative.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);
|
|
handleNetworkDisconnect();
|
|
setWifiState(WIFI_STATE_DISABLING);
|
|
sendSupplicantConnectionChangedBroadcast(false);
|
|
mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE);
|
|
mWpsStateMachine.sendMessage(CMD_RESET_WPS_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.
|
|
*/
|
|
WifiNative.killSupplicant();
|
|
WifiNative.closeSupplicantConnection();
|
|
transitionTo(mDriverLoadedState);
|
|
break;
|
|
case CMD_STOP_SUPPLICANT_FAILED:
|
|
if (message.arg1 == mSupplicantStopFailureToken) {
|
|
loge("Timed out on a supplicant stop, kill and proceed");
|
|
WifiNative.killSupplicant();
|
|
WifiNative.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_HIGH_PERF_MODE:
|
|
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;
|
|
}
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
return HANDLED;
|
|
}
|
|
}
|
|
|
|
class DriverStartingState 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 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;
|
|
/* 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_HIGH_PERF_MODE:
|
|
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;
|
|
}
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
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
|
|
*/
|
|
WifiNative.setBluetoothCoexistenceScanModeCommand(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 */
|
|
WifiNative.stopFilteringMulticastV6Packets();
|
|
|
|
/* Reset Multicast v4 filtering state */
|
|
if (mFilteringMulticastV4Packets.get()) {
|
|
WifiNative.startFilteringMulticastV4Packets();
|
|
} else {
|
|
WifiNative.stopFilteringMulticastV4Packets();
|
|
}
|
|
|
|
if (mIsScanMode) {
|
|
WifiNative.setScanResultHandlingCommand(SCAN_ONLY_MODE);
|
|
WifiNative.disconnectCommand();
|
|
transitionTo(mScanModeState);
|
|
} else {
|
|
WifiNative.setScanResultHandlingCommand(CONNECT_MODE);
|
|
WifiNative.reconnectCommand();
|
|
transitionTo(mDisconnectedState);
|
|
}
|
|
}
|
|
@Override
|
|
public boolean processMessage(Message message) {
|
|
if (DBG) log(getName() + message.toString() + "\n");
|
|
boolean eventLoggingEnabled = true;
|
|
switch(message.what) {
|
|
case CMD_SET_SCAN_TYPE:
|
|
if (message.arg1 == SCAN_ACTIVE) {
|
|
WifiNative.setScanModeCommand(true);
|
|
} else {
|
|
WifiNative.setScanModeCommand(false);
|
|
}
|
|
break;
|
|
case CMD_START_SCAN:
|
|
eventLoggingEnabled = false;
|
|
WifiNative.scanCommand(message.arg1 == SCAN_ACTIVE);
|
|
mScanResultIsPending = true;
|
|
break;
|
|
case CMD_SET_HIGH_PERF_MODE:
|
|
setHighPerfModeEnabledNative(message.arg1 == 1);
|
|
break;
|
|
case CMD_SET_COUNTRY_CODE:
|
|
String country = (String) message.obj;
|
|
if (DBG) log("set country code " + country);
|
|
if (!WifiNative.setCountryCodeCommand(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 (WifiNative.setBandCommand(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);
|
|
WifiNative.setBluetoothCoexistenceScanModeCommand(mBluetoothConnectionActive);
|
|
break;
|
|
case CMD_STOP_DRIVER:
|
|
/* Already doing a delayed stop */
|
|
if (mInDelayedStop) {
|
|
if (DBG) log("Already in delayed stop");
|
|
break;
|
|
}
|
|
mInDelayedStop = true;
|
|
mDelayedStopCounter++;
|
|
if (DBG) log("Delayed stop message " + mDelayedStopCounter);
|
|
sendMessageDelayed(obtainMessage(CMD_DELAYED_STOP_DRIVER, mDelayedStopCounter,
|
|
0), DELAYED_DRIVER_STOP_MS);
|
|
break;
|
|
case CMD_START_DRIVER:
|
|
if (mInDelayedStop) {
|
|
mInDelayedStop = false;
|
|
mDelayedStopCounter++;
|
|
if (DBG) log("Delayed stop ignored due to start");
|
|
}
|
|
break;
|
|
case CMD_DELAYED_STOP_DRIVER:
|
|
if (message.arg1 != mDelayedStopCounter) break;
|
|
if (getCurrentState() != mDisconnectedState) {
|
|
WifiNative.disconnectCommand();
|
|
handleNetworkDisconnect();
|
|
}
|
|
mWakeLock.acquire();
|
|
WifiNative.stopDriverCommand();
|
|
transitionTo(mDriverStoppingState);
|
|
mWakeLock.release();
|
|
break;
|
|
case CMD_START_PACKET_FILTERING:
|
|
if (message.arg1 == MULTICAST_V6) {
|
|
WifiNative.startFilteringMulticastV6Packets();
|
|
} else if (message.arg1 == MULTICAST_V4) {
|
|
WifiNative.startFilteringMulticastV4Packets();
|
|
} else {
|
|
loge("Illegal arugments to CMD_START_PACKET_FILTERING");
|
|
}
|
|
break;
|
|
case CMD_STOP_PACKET_FILTERING:
|
|
if (message.arg1 == MULTICAST_V6) {
|
|
WifiNative.stopFilteringMulticastV6Packets();
|
|
} else if (message.arg1 == MULTICAST_V4) {
|
|
WifiNative.stopFilteringMulticastV4Packets();
|
|
} else {
|
|
loge("Illegal arugments to CMD_STOP_PACKET_FILTERING");
|
|
}
|
|
break;
|
|
default:
|
|
return NOT_HANDLED;
|
|
}
|
|
if (eventLoggingEnabled) {
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
}
|
|
return HANDLED;
|
|
}
|
|
@Override
|
|
public void exit() {
|
|
if (DBG) log(getName() + "\n");
|
|
mIsRunning = false;
|
|
updateBatteryWorkSource(null);
|
|
mScanResults = null;
|
|
}
|
|
}
|
|
|
|
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_HIGH_PERF_MODE:
|
|
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;
|
|
}
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
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();
|
|
WifiNative.startDriverCommand();
|
|
mWakeLock.release();
|
|
transitionTo(mDriverStartingState);
|
|
break;
|
|
default:
|
|
return NOT_HANDLED;
|
|
}
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
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 {
|
|
WifiNative.setScanResultHandlingCommand(message.arg1);
|
|
WifiNative.reconnectCommand();
|
|
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;
|
|
}
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
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.WPS_OVERLAP_EVENT:
|
|
/* We just need to broadcast the error */
|
|
sendErrorBroadcast(WifiManager.WPS_OVERLAP_ERROR);
|
|
break;
|
|
case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT:
|
|
SupplicantState state = handleSupplicantStateChange(message);
|
|
// Due to a WEXT bug, during the time of driver start/stop
|
|
// we can go into a driver stopped state in an unexpected way.
|
|
// The sequence eventually puts interface
|
|
// up and we should be back to a connected state
|
|
if (!SupplicantState.isDriverActive(state)) {
|
|
if (mNetworkInfo.getState() != NetworkInfo.State.DISCONNECTED) {
|
|
handleNetworkDisconnect();
|
|
}
|
|
transitionTo(mDriverStoppedState);
|
|
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:
|
|
WifiNative.disconnectCommand();
|
|
break;
|
|
case CMD_RECONNECT:
|
|
WifiNative.reconnectCommand();
|
|
break;
|
|
case CMD_REASSOCIATE:
|
|
WifiNative.reassociateCommand();
|
|
break;
|
|
case CMD_CONNECT_NETWORK:
|
|
int netId = message.arg1;
|
|
WifiConfiguration config = (WifiConfiguration) message.obj;
|
|
|
|
/* We connect to a specific network by issuing a select
|
|
* to the WifiConfigStore. This enables the network,
|
|
* while disabling all other networks in the supplicant.
|
|
* Disabling a connected network will cause a disconnection
|
|
* from the network. A reconnectCommand() will then initiate
|
|
* a connection to the enabled network.
|
|
*/
|
|
if (config != null) {
|
|
netId = WifiConfigStore.selectNetwork(config);
|
|
} else {
|
|
WifiConfigStore.selectNetwork(netId);
|
|
}
|
|
|
|
/* The state tracker handles enabling networks upon completion/failure */
|
|
mSupplicantStateTracker.sendMessage(CMD_CONNECT_NETWORK);
|
|
|
|
WifiNative.reconnectCommand();
|
|
mLastExplicitNetworkId = netId;
|
|
mLastNetworkChoiceTime = SystemClock.elapsedRealtime();
|
|
mNextWifiActionExplicit = true;
|
|
if (DBG) log("Setting wifi connect explicit for netid " + netId);
|
|
/* Expect a disconnection from the old connection */
|
|
transitionTo(mDisconnectingState);
|
|
break;
|
|
case CMD_START_WPS:
|
|
mWpsStateMachine.sendMessage(Message.obtain(message));
|
|
transitionTo(mWaitForWpsCompletionState);
|
|
break;
|
|
case WifiMonitor.SCAN_RESULTS_EVENT:
|
|
/* Set the scan setting back to "connect" mode */
|
|
WifiNative.setScanResultHandlingCommand(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;
|
|
|
|
//TODO: make supplicant modification to push this in events
|
|
mWifiInfo.setSSID(fetchSSID());
|
|
mWifiInfo.setBSSID(mLastBssid);
|
|
mWifiInfo.setNetworkId(mLastNetworkId);
|
|
if (mNextWifiActionExplicit &&
|
|
mWifiInfo.getNetworkId() == mLastExplicitNetworkId &&
|
|
SystemClock.elapsedRealtime() < mLastNetworkChoiceTime +
|
|
EXPLICIT_CONNECT_ALLOWED_DELAY_MS) {
|
|
mWifiInfo.setExplicitConnect(true);
|
|
}
|
|
mNextWifiActionExplicit = false;
|
|
/* send event to CM & network change broadcast */
|
|
setNetworkDetailedState(DetailedState.OBTAINING_IPADDR);
|
|
sendNetworkStateChangeBroadcast(mLastBssid);
|
|
transitionTo(mConnectingState);
|
|
break;
|
|
case WifiMonitor.NETWORK_DISCONNECTION_EVENT:
|
|
if (DBG) log("Network connection lost");
|
|
handleNetworkDisconnect();
|
|
transitionTo(mDisconnectedState);
|
|
break;
|
|
default:
|
|
return NOT_HANDLED;
|
|
}
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
return HANDLED;
|
|
}
|
|
}
|
|
|
|
class ConnectingState extends State {
|
|
|
|
@Override
|
|
public void enter() {
|
|
if (DBG) log(getName() + "\n");
|
|
EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName());
|
|
|
|
try {
|
|
mNwService.enableIpv6(mInterfaceName);
|
|
} catch (RemoteException re) {
|
|
loge("Failed to enable IPv6: " + re);
|
|
} catch (IllegalStateException e) {
|
|
loge("Failed to enable IPv6: " + e);
|
|
}
|
|
|
|
if (!WifiConfigStore.isUsingStaticIp(mLastNetworkId)) {
|
|
//start DHCP
|
|
mDhcpStateMachine = DhcpStateMachine.makeDhcpStateMachine(
|
|
mContext, WifiStateMachine.this, mInterfaceName);
|
|
mDhcpStateMachine.registerForPreDhcpNotification();
|
|
mDhcpStateMachine.sendMessage(DhcpStateMachine.CMD_START_DHCP);
|
|
} else {
|
|
DhcpInfoInternal dhcpInfoInternal = WifiConfigStore.getIpConfiguration(
|
|
mLastNetworkId);
|
|
InterfaceConfiguration ifcg = new InterfaceConfiguration();
|
|
ifcg.addr = dhcpInfoInternal.makeLinkAddress();
|
|
ifcg.interfaceFlags = "[up]";
|
|
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 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) {
|
|
handleSuccessfulIpConfiguration((DhcpInfoInternal) message.obj);
|
|
transitionTo(mConnectedState);
|
|
} else if (message.arg1 == DhcpStateMachine.DHCP_FAILURE) {
|
|
handleFailedIpConfiguration();
|
|
transitionTo(mDisconnectingState);
|
|
}
|
|
break;
|
|
case CMD_STATIC_IP_SUCCESS:
|
|
handleSuccessfulIpConfiguration((DhcpInfoInternal) message.obj);
|
|
transitionTo(mConnectedState);
|
|
break;
|
|
case CMD_STATIC_IP_FAILURE:
|
|
handleFailedIpConfiguration();
|
|
transitionTo(mDisconnectingState);
|
|
break;
|
|
case CMD_DISCONNECT:
|
|
WifiNative.disconnectCommand();
|
|
transitionTo(mDisconnectingState);
|
|
break;
|
|
/* Ignore connection to same network */
|
|
case CMD_CONNECT_NETWORK:
|
|
int netId = message.arg1;
|
|
if (mWifiInfo.getNetworkId() == netId) {
|
|
break;
|
|
}
|
|
return NOT_HANDLED;
|
|
case CMD_SAVE_NETWORK:
|
|
deferMessage(message);
|
|
break;
|
|
/* Ignore */
|
|
case WifiMonitor.NETWORK_CONNECTION_EVENT:
|
|
break;
|
|
case CMD_SET_SCAN_MODE:
|
|
if (message.arg1 == SCAN_ONLY_MODE) {
|
|
sendMessage(CMD_DISCONNECT);
|
|
deferMessage(message);
|
|
}
|
|
break;
|
|
/* Defer scan when IP is being fetched */
|
|
case CMD_START_SCAN:
|
|
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;
|
|
}
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
return HANDLED;
|
|
}
|
|
}
|
|
|
|
class ConnectedState extends State {
|
|
@Override
|
|
public void enter() {
|
|
if (DBG) log(getName() + "\n");
|
|
EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName());
|
|
mRssiPollToken++;
|
|
if (mEnableRssiPolling) {
|
|
sendMessage(obtainMessage(WifiStateMachine.CMD_RSSI_POLL, mRssiPollToken, 0));
|
|
}
|
|
}
|
|
@Override
|
|
public boolean processMessage(Message message) {
|
|
if (DBG) log(getName() + message.toString() + "\n");
|
|
boolean eventLoggingEnabled = true;
|
|
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) {
|
|
handleSuccessfulIpConfiguration((DhcpInfoInternal) message.obj);
|
|
} else if (message.arg1 == DhcpStateMachine.DHCP_FAILURE) {
|
|
handleFailedIpConfiguration();
|
|
transitionTo(mDisconnectingState);
|
|
}
|
|
break;
|
|
case CMD_DISCONNECT:
|
|
WifiNative.disconnectCommand();
|
|
transitionTo(mDisconnectingState);
|
|
break;
|
|
case CMD_REQUEST_CM_WAKELOCK:
|
|
checkAndSetConnectivityInstance();
|
|
mCm.requestNetworkTransitionWakelock(TAG);
|
|
break;
|
|
case CMD_SET_SCAN_MODE:
|
|
if (message.arg1 == SCAN_ONLY_MODE) {
|
|
sendMessage(CMD_DISCONNECT);
|
|
deferMessage(message);
|
|
}
|
|
break;
|
|
case CMD_START_SCAN:
|
|
eventLoggingEnabled = false;
|
|
/* 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.
|
|
*/
|
|
WifiNative.setScanResultHandlingCommand(SCAN_ONLY_MODE);
|
|
/* Have the parent state handle the rest */
|
|
return NOT_HANDLED;
|
|
/* Ignore connection to same network */
|
|
case CMD_CONNECT_NETWORK:
|
|
int netId = message.arg1;
|
|
if (mWifiInfo.getNetworkId() == netId) {
|
|
break;
|
|
}
|
|
return NOT_HANDLED;
|
|
case CMD_SAVE_NETWORK:
|
|
WifiConfiguration config = (WifiConfiguration) message.obj;
|
|
NetworkUpdateResult result = WifiConfigStore.saveNetwork(config);
|
|
if (mWifiInfo.getNetworkId() == result.getNetworkId()) {
|
|
if (result.hasIpChanged()) {
|
|
log("Reconfiguring IP on connection");
|
|
transitionTo(mConnectingState);
|
|
}
|
|
if (result.hasProxyChanged()) {
|
|
log("Reconfiguring proxy on connection");
|
|
configureLinkProperties();
|
|
sendLinkConfigurationChangedBroadcast();
|
|
}
|
|
}
|
|
break;
|
|
/* Ignore */
|
|
case WifiMonitor.NETWORK_CONNECTION_EVENT:
|
|
break;
|
|
case CMD_RSSI_POLL:
|
|
eventLoggingEnabled = false;
|
|
if (message.arg1 == mRssiPollToken) {
|
|
// Get Info and continue polling
|
|
fetchRssiAndLinkSpeedNative();
|
|
sendMessageDelayed(obtainMessage(WifiStateMachine.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(WifiStateMachine.CMD_RSSI_POLL,
|
|
mRssiPollToken, 0), POLL_RSSI_INTERVAL_MSECS);
|
|
}
|
|
break;
|
|
default:
|
|
return NOT_HANDLED;
|
|
}
|
|
if (eventLoggingEnabled) {
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
}
|
|
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) {
|
|
WifiNative.setScanResultHandlingCommand(CONNECT_MODE);
|
|
}
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
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) {
|
|
WifiNative.enableBackgroundScanCommand(true);
|
|
}
|
|
} else {
|
|
setScanAlarm(true);
|
|
}
|
|
}
|
|
@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) {
|
|
WifiNative.setScanResultHandlingCommand(message.arg1);
|
|
//Supplicant disconnect to prevent further connects
|
|
WifiNative.disconnectCommand();
|
|
mIsScanMode = true;
|
|
transitionTo(mScanModeState);
|
|
}
|
|
break;
|
|
case CMD_ENABLE_BACKGROUND_SCAN:
|
|
mEnableBackgroundScan = (message.arg1 == 1);
|
|
if (mEnableBackgroundScan) {
|
|
WifiNative.enableBackgroundScanCommand(true);
|
|
setScanAlarm(false);
|
|
} else {
|
|
WifiNative.enableBackgroundScanCommand(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 */
|
|
return NOT_HANDLED;
|
|
case CMD_START_SCAN:
|
|
/* Disable background scan temporarily during a regular scan */
|
|
if (mEnableBackgroundScan) {
|
|
WifiNative.enableBackgroundScanCommand(false);
|
|
}
|
|
/* Handled in parent state */
|
|
return NOT_HANDLED;
|
|
case WifiMonitor.SCAN_RESULTS_EVENT:
|
|
/* Re-enable background scan when a pending scan result is received */
|
|
if (mEnableBackgroundScan && mScanResultIsPending) {
|
|
WifiNative.enableBackgroundScanCommand(true);
|
|
}
|
|
/* Handled in parent state */
|
|
return NOT_HANDLED;
|
|
default:
|
|
return NOT_HANDLED;
|
|
}
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
return HANDLED;
|
|
}
|
|
|
|
@Override
|
|
public void exit() {
|
|
/* No need for a background scan upon exit from a disconnected state */
|
|
if (mEnableBackgroundScan) {
|
|
WifiNative.enableBackgroundScanCommand(false);
|
|
}
|
|
setScanAlarm(false);
|
|
}
|
|
}
|
|
|
|
class WaitForWpsCompletionState 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) {
|
|
/* 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 CMD_CONNECT_NETWORK:
|
|
case CMD_ENABLE_NETWORK:
|
|
case CMD_RECONNECT:
|
|
case CMD_REASSOCIATE:
|
|
case WifiMonitor.NETWORK_CONNECTION_EVENT: /* Handled after IP & proxy update */
|
|
deferMessage(message);
|
|
break;
|
|
case WifiMonitor.NETWORK_DISCONNECTION_EVENT:
|
|
if (DBG) log("Network connection lost");
|
|
handleNetworkDisconnect();
|
|
break;
|
|
case WPS_COMPLETED_EVENT:
|
|
/* we are still disconnected until we see a network connection
|
|
* notification */
|
|
transitionTo(mDisconnectedState);
|
|
break;
|
|
default:
|
|
return NOT_HANDLED;
|
|
}
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
return HANDLED;
|
|
}
|
|
}
|
|
|
|
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_HIGH_PERF_MODE:
|
|
case CMD_SET_COUNTRY_CODE:
|
|
case CMD_SET_FREQUENCY_BAND:
|
|
case CMD_START_PACKET_FILTERING:
|
|
case CMD_STOP_PACKET_FILTERING:
|
|
case CMD_TETHER_INTERFACE:
|
|
case WifiP2pService.P2P_ENABLE_PENDING:
|
|
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;
|
|
}
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
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);
|
|
stopTethering();
|
|
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_INTERFACE:
|
|
ArrayList<String> available = (ArrayList<String>) message.obj;
|
|
if (startTethering(available)) {
|
|
transitionTo(mTetheredState);
|
|
}
|
|
break;
|
|
case WifiP2pService.P2P_ENABLE_PENDING:
|
|
// turn of soft Ap and defer to be handled in DriverUnloadedState
|
|
setWifiApEnabled(null, false);
|
|
deferMessage(message);
|
|
break;
|
|
default:
|
|
return NOT_HANDLED;
|
|
}
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
return HANDLED;
|
|
}
|
|
}
|
|
|
|
class WaitForP2pDisableState extends State {
|
|
private int mSavedArg;
|
|
@Override
|
|
public void enter() {
|
|
if (DBG) log(getName() + "\n");
|
|
EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName());
|
|
|
|
//Preserve the argument arg1 that has information used in DriverLoadingState
|
|
mSavedArg = getCurrentMessage().arg1;
|
|
}
|
|
@Override
|
|
public boolean processMessage(Message message) {
|
|
if (DBG) log(getName() + message.toString() + "\n");
|
|
switch(message.what) {
|
|
case WifiP2pService.WIFI_ENABLE_PROCEED:
|
|
//restore argument from original message (CMD_LOAD_DRIVER)
|
|
message.arg1 = mSavedArg;
|
|
transitionTo(mDriverLoadingState);
|
|
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_HIGH_PERF_MODE:
|
|
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;
|
|
}
|
|
EventLog.writeEvent(EVENTLOG_WIFI_EVENT_HANDLED, message.what);
|
|
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_INTERFACE:
|
|
// Ignore any duplicate interface available notifications
|
|
// when in tethered state
|
|
return HANDLED;
|
|
default:
|
|
return NOT_HANDLED;
|
|
}
|
|
}
|
|
}
|
|
|
|
private void log(String s) {
|
|
Log.d(TAG, s);
|
|
}
|
|
|
|
private void loge(String s) {
|
|
Log.e(TAG, s);
|
|
}
|
|
}
|