5e45ee6752
Also add new ops for calendar and wi-fi scans, finish implementing rejection of content provider calls, fix issues with rejecting location calls, fix bug in the new pm call to retrieve apps with permissions. Change-Id: I29d9f8600bfbbf6561abf6d491907e2bbf6af417
2005 lines
71 KiB
Java
2005 lines
71 KiB
Java
/*
|
|
* Copyright (C) 2008 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package android.net.wifi;
|
|
|
|
import android.annotation.SdkConstant;
|
|
import android.annotation.SdkConstant.SdkConstantType;
|
|
import android.content.Context;
|
|
import android.net.DhcpInfo;
|
|
import android.os.Binder;
|
|
import android.os.IBinder;
|
|
import android.os.Handler;
|
|
import android.os.HandlerThread;
|
|
import android.os.Looper;
|
|
import android.os.Message;
|
|
import android.os.RemoteException;
|
|
import android.os.WorkSource;
|
|
import android.os.Messenger;
|
|
import android.util.Log;
|
|
import android.util.SparseArray;
|
|
|
|
import java.util.concurrent.CountDownLatch;
|
|
|
|
import com.android.internal.util.AsyncChannel;
|
|
import com.android.internal.util.Protocol;
|
|
|
|
import java.util.List;
|
|
|
|
/**
|
|
* This class provides the primary API for managing all aspects of Wi-Fi
|
|
* connectivity. Get an instance of this class by calling
|
|
* {@link android.content.Context#getSystemService(String) Context.getSystemService(Context.WIFI_SERVICE)}.
|
|
|
|
* It deals with several categories of items:
|
|
* <ul>
|
|
* <li>The list of configured networks. The list can be viewed and updated,
|
|
* and attributes of individual entries can be modified.</li>
|
|
* <li>The currently active Wi-Fi network, if any. Connectivity can be
|
|
* established or torn down, and dynamic information about the state of
|
|
* the network can be queried.</li>
|
|
* <li>Results of access point scans, containing enough information to
|
|
* make decisions about what access point to connect to.</li>
|
|
* <li>It defines the names of various Intent actions that are broadcast
|
|
* upon any sort of change in Wi-Fi state.
|
|
* </ul>
|
|
* This is the API to use when performing Wi-Fi specific operations. To
|
|
* perform operations that pertain to network connectivity at an abstract
|
|
* level, use {@link android.net.ConnectivityManager}.
|
|
*/
|
|
public class WifiManager {
|
|
|
|
private static final String TAG = "WifiManager";
|
|
// Supplicant error codes:
|
|
/**
|
|
* The error code if there was a problem authenticating.
|
|
*/
|
|
public static final int ERROR_AUTHENTICATING = 1;
|
|
|
|
/**
|
|
* Broadcast intent action indicating that Wi-Fi has been enabled, disabled,
|
|
* enabling, disabling, or unknown. One extra provides this state as an int.
|
|
* Another extra provides the previous state, if available.
|
|
*
|
|
* @see #EXTRA_WIFI_STATE
|
|
* @see #EXTRA_PREVIOUS_WIFI_STATE
|
|
*/
|
|
@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
|
|
public static final String WIFI_STATE_CHANGED_ACTION =
|
|
"android.net.wifi.WIFI_STATE_CHANGED";
|
|
/**
|
|
* The lookup key for an int that indicates whether Wi-Fi is enabled,
|
|
* disabled, enabling, disabling, or unknown. Retrieve it with
|
|
* {@link android.content.Intent#getIntExtra(String,int)}.
|
|
*
|
|
* @see #WIFI_STATE_DISABLED
|
|
* @see #WIFI_STATE_DISABLING
|
|
* @see #WIFI_STATE_ENABLED
|
|
* @see #WIFI_STATE_ENABLING
|
|
* @see #WIFI_STATE_UNKNOWN
|
|
*/
|
|
public static final String EXTRA_WIFI_STATE = "wifi_state";
|
|
/**
|
|
* The previous Wi-Fi state.
|
|
*
|
|
* @see #EXTRA_WIFI_STATE
|
|
*/
|
|
public static final String EXTRA_PREVIOUS_WIFI_STATE = "previous_wifi_state";
|
|
|
|
/**
|
|
* Wi-Fi is currently being disabled. The state will change to {@link #WIFI_STATE_DISABLED} if
|
|
* it finishes successfully.
|
|
*
|
|
* @see #WIFI_STATE_CHANGED_ACTION
|
|
* @see #getWifiState()
|
|
*/
|
|
public static final int WIFI_STATE_DISABLING = 0;
|
|
/**
|
|
* Wi-Fi is disabled.
|
|
*
|
|
* @see #WIFI_STATE_CHANGED_ACTION
|
|
* @see #getWifiState()
|
|
*/
|
|
public static final int WIFI_STATE_DISABLED = 1;
|
|
/**
|
|
* Wi-Fi is currently being enabled. The state will change to {@link #WIFI_STATE_ENABLED} if
|
|
* it finishes successfully.
|
|
*
|
|
* @see #WIFI_STATE_CHANGED_ACTION
|
|
* @see #getWifiState()
|
|
*/
|
|
public static final int WIFI_STATE_ENABLING = 2;
|
|
/**
|
|
* Wi-Fi is enabled.
|
|
*
|
|
* @see #WIFI_STATE_CHANGED_ACTION
|
|
* @see #getWifiState()
|
|
*/
|
|
public static final int WIFI_STATE_ENABLED = 3;
|
|
/**
|
|
* Wi-Fi is in an unknown state. This state will occur when an error happens while enabling
|
|
* or disabling.
|
|
*
|
|
* @see #WIFI_STATE_CHANGED_ACTION
|
|
* @see #getWifiState()
|
|
*/
|
|
public static final int WIFI_STATE_UNKNOWN = 4;
|
|
|
|
/**
|
|
* Broadcast intent action indicating that Wi-Fi AP has been enabled, disabled,
|
|
* enabling, disabling, or failed.
|
|
*
|
|
* @hide
|
|
*/
|
|
public static final String WIFI_AP_STATE_CHANGED_ACTION =
|
|
"android.net.wifi.WIFI_AP_STATE_CHANGED";
|
|
|
|
/**
|
|
* The lookup key for an int that indicates whether Wi-Fi AP is enabled,
|
|
* disabled, enabling, disabling, or failed. Retrieve it with
|
|
* {@link android.content.Intent#getIntExtra(String,int)}.
|
|
*
|
|
* @see #WIFI_AP_STATE_DISABLED
|
|
* @see #WIFI_AP_STATE_DISABLING
|
|
* @see #WIFI_AP_STATE_ENABLED
|
|
* @see #WIFI_AP_STATE_ENABLING
|
|
* @see #WIFI_AP_STATE_FAILED
|
|
*
|
|
* @hide
|
|
*/
|
|
public static final String EXTRA_WIFI_AP_STATE = "wifi_state";
|
|
/**
|
|
* The previous Wi-Fi state.
|
|
*
|
|
* @see #EXTRA_WIFI_AP_STATE
|
|
*
|
|
* @hide
|
|
*/
|
|
public static final String EXTRA_PREVIOUS_WIFI_AP_STATE = "previous_wifi_state";
|
|
/**
|
|
* Wi-Fi AP is currently being disabled. The state will change to
|
|
* {@link #WIFI_AP_STATE_DISABLED} if it finishes successfully.
|
|
*
|
|
* @see #WIFI_AP_STATE_CHANGED_ACTION
|
|
* @see #getWifiApState()
|
|
*
|
|
* @hide
|
|
*/
|
|
public static final int WIFI_AP_STATE_DISABLING = 10;
|
|
/**
|
|
* Wi-Fi AP is disabled.
|
|
*
|
|
* @see #WIFI_AP_STATE_CHANGED_ACTION
|
|
* @see #getWifiState()
|
|
*
|
|
* @hide
|
|
*/
|
|
public static final int WIFI_AP_STATE_DISABLED = 11;
|
|
/**
|
|
* Wi-Fi AP is currently being enabled. The state will change to
|
|
* {@link #WIFI_AP_STATE_ENABLED} if it finishes successfully.
|
|
*
|
|
* @see #WIFI_AP_STATE_CHANGED_ACTION
|
|
* @see #getWifiApState()
|
|
*
|
|
* @hide
|
|
*/
|
|
public static final int WIFI_AP_STATE_ENABLING = 12;
|
|
/**
|
|
* Wi-Fi AP is enabled.
|
|
*
|
|
* @see #WIFI_AP_STATE_CHANGED_ACTION
|
|
* @see #getWifiApState()
|
|
*
|
|
* @hide
|
|
*/
|
|
public static final int WIFI_AP_STATE_ENABLED = 13;
|
|
/**
|
|
* Wi-Fi AP is in a failed state. This state will occur when an error occurs during
|
|
* enabling or disabling
|
|
*
|
|
* @see #WIFI_AP_STATE_CHANGED_ACTION
|
|
* @see #getWifiApState()
|
|
*
|
|
* @hide
|
|
*/
|
|
public static final int WIFI_AP_STATE_FAILED = 14;
|
|
|
|
/**
|
|
* Broadcast intent action indicating that a connection to the supplicant has
|
|
* been established (and it is now possible
|
|
* to perform Wi-Fi operations) or the connection to the supplicant has been
|
|
* lost. One extra provides the connection state as a boolean, where {@code true}
|
|
* means CONNECTED.
|
|
* @see #EXTRA_SUPPLICANT_CONNECTED
|
|
*/
|
|
@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
|
|
public static final String SUPPLICANT_CONNECTION_CHANGE_ACTION =
|
|
"android.net.wifi.supplicant.CONNECTION_CHANGE";
|
|
/**
|
|
* The lookup key for a boolean that indicates whether a connection to
|
|
* the supplicant daemon has been gained or lost. {@code true} means
|
|
* a connection now exists.
|
|
* Retrieve it with {@link android.content.Intent#getBooleanExtra(String,boolean)}.
|
|
*/
|
|
public static final String EXTRA_SUPPLICANT_CONNECTED = "connected";
|
|
/**
|
|
* Broadcast intent action indicating that the state of Wi-Fi connectivity
|
|
* has changed. One extra provides the new state
|
|
* in the form of a {@link android.net.NetworkInfo} object. If the new
|
|
* state is CONNECTED, additional extras may provide the BSSID and WifiInfo of
|
|
* the access point.
|
|
* as a {@code String}.
|
|
* @see #EXTRA_NETWORK_INFO
|
|
* @see #EXTRA_BSSID
|
|
* @see #EXTRA_WIFI_INFO
|
|
*/
|
|
@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
|
|
public static final String NETWORK_STATE_CHANGED_ACTION = "android.net.wifi.STATE_CHANGE";
|
|
/**
|
|
* The lookup key for a {@link android.net.NetworkInfo} object associated with the
|
|
* Wi-Fi network. Retrieve with
|
|
* {@link android.content.Intent#getParcelableExtra(String)}.
|
|
*/
|
|
public static final String EXTRA_NETWORK_INFO = "networkInfo";
|
|
/**
|
|
* The lookup key for a String giving the BSSID of the access point to which
|
|
* we are connected. Only present when the new state is CONNECTED.
|
|
* Retrieve with
|
|
* {@link android.content.Intent#getStringExtra(String)}.
|
|
*/
|
|
public static final String EXTRA_BSSID = "bssid";
|
|
/**
|
|
* The lookup key for a {@link android.net.wifi.WifiInfo} object giving the
|
|
* information about the access point to which we are connected. Only present
|
|
* when the new state is CONNECTED. Retrieve with
|
|
* {@link android.content.Intent#getParcelableExtra(String)}.
|
|
*/
|
|
public static final String EXTRA_WIFI_INFO = "wifiInfo";
|
|
/**
|
|
* Broadcast intent action indicating that the state of establishing a connection to
|
|
* an access point has changed.One extra provides the new
|
|
* {@link SupplicantState}. Note that the supplicant state is Wi-Fi specific, and
|
|
* is not generally the most useful thing to look at if you are just interested in
|
|
* the overall state of connectivity.
|
|
* @see #EXTRA_NEW_STATE
|
|
* @see #EXTRA_SUPPLICANT_ERROR
|
|
*/
|
|
@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
|
|
public static final String SUPPLICANT_STATE_CHANGED_ACTION =
|
|
"android.net.wifi.supplicant.STATE_CHANGE";
|
|
/**
|
|
* The lookup key for a {@link SupplicantState} describing the new state
|
|
* Retrieve with
|
|
* {@link android.content.Intent#getParcelableExtra(String)}.
|
|
*/
|
|
public static final String EXTRA_NEW_STATE = "newState";
|
|
|
|
/**
|
|
* The lookup key for a {@link SupplicantState} describing the supplicant
|
|
* error code if any
|
|
* Retrieve with
|
|
* {@link android.content.Intent#getIntExtra(String, int)}.
|
|
* @see #ERROR_AUTHENTICATING
|
|
*/
|
|
public static final String EXTRA_SUPPLICANT_ERROR = "supplicantError";
|
|
|
|
/**
|
|
* Broadcast intent action indicating that the configured networks changed.
|
|
* This can be as a result of adding/updating/deleting a network. If
|
|
* {@link #EXTRA_MULTIPLE_NETWORKS_CHANGED} is set to true the new configuration
|
|
* can be retreived with the {@link #EXTRA_WIFI_CONFIGURATION} extra. If multiple
|
|
* Wi-Fi configurations changed, {@link #EXTRA_WIFI_CONFIGURATION} will not be present.
|
|
* @hide
|
|
*/
|
|
public static final String CONFIGURED_NETWORKS_CHANGED_ACTION =
|
|
"android.net.wifi.CONFIGURED_NETWORKS_CHANGE";
|
|
/**
|
|
* The lookup key for a (@link android.net.wifi.WifiConfiguration} object representing
|
|
* the changed Wi-Fi configuration when the {@link #CONFIGURED_NETWORKS_CHANGED_ACTION}
|
|
* broadcast is sent.
|
|
* @hide
|
|
*/
|
|
public static final String EXTRA_WIFI_CONFIGURATION = "wifiConfiguration";
|
|
/**
|
|
* Multiple network configurations have changed.
|
|
* @see #CONFIGURED_NETWORKS_CHANGED_ACTION
|
|
*
|
|
* @hide
|
|
*/
|
|
public static final String EXTRA_MULTIPLE_NETWORKS_CHANGED = "multipleChanges";
|
|
/**
|
|
* The lookup key for an integer indicating the reason a Wi-Fi network configuration
|
|
* has changed. Only present if {@link #EXTRA_MULTIPLE_NETWORKS_CHANGED} is {@code false}
|
|
* @see #CONFIGURED_NETWORKS_CHANGED_ACTION
|
|
* @hide
|
|
*/
|
|
public static final String EXTRA_CHANGE_REASON = "changeReason";
|
|
/**
|
|
* The configuration is new and was added.
|
|
* @hide
|
|
*/
|
|
public static final int CHANGE_REASON_ADDED = 0;
|
|
/**
|
|
* The configuration was removed and is no longer present in the system's list of
|
|
* configured networks.
|
|
* @hide
|
|
*/
|
|
public static final int CHANGE_REASON_REMOVED = 1;
|
|
/**
|
|
* The configuration has changed as a result of explicit action or because the system
|
|
* took an automated action such as disabling a malfunctioning configuration.
|
|
* @hide
|
|
*/
|
|
public static final int CHANGE_REASON_CONFIG_CHANGE = 2;
|
|
/**
|
|
* An access point scan has completed, and results are available from the supplicant.
|
|
* Call {@link #getScanResults()} to obtain the results.
|
|
*/
|
|
@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
|
|
public static final String SCAN_RESULTS_AVAILABLE_ACTION = "android.net.wifi.SCAN_RESULTS";
|
|
/**
|
|
* The RSSI (signal strength) has changed.
|
|
* @see #EXTRA_NEW_RSSI
|
|
*/
|
|
@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
|
|
public static final String RSSI_CHANGED_ACTION = "android.net.wifi.RSSI_CHANGED";
|
|
/**
|
|
* The lookup key for an {@code int} giving the new RSSI in dBm.
|
|
*/
|
|
public static final String EXTRA_NEW_RSSI = "newRssi";
|
|
|
|
/**
|
|
* Broadcast intent action indicating that the link configuration
|
|
* changed on wifi.
|
|
* @hide
|
|
*/
|
|
public static final String LINK_CONFIGURATION_CHANGED_ACTION =
|
|
"android.net.wifi.LINK_CONFIGURATION_CHANGED";
|
|
|
|
/**
|
|
* The lookup key for a {@link android.net.LinkProperties} object associated with the
|
|
* Wi-Fi network. Retrieve with
|
|
* {@link android.content.Intent#getParcelableExtra(String)}.
|
|
* @hide
|
|
*/
|
|
public static final String EXTRA_LINK_PROPERTIES = "linkProperties";
|
|
|
|
/**
|
|
* The lookup key for a {@link android.net.LinkCapabilities} object associated with the
|
|
* Wi-Fi network. Retrieve with
|
|
* {@link android.content.Intent#getParcelableExtra(String)}.
|
|
* @hide
|
|
*/
|
|
public static final String EXTRA_LINK_CAPABILITIES = "linkCapabilities";
|
|
|
|
/**
|
|
* The network IDs of the configured networks could have changed.
|
|
*/
|
|
@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
|
|
public static final String NETWORK_IDS_CHANGED_ACTION = "android.net.wifi.NETWORK_IDS_CHANGED";
|
|
|
|
/**
|
|
* Activity Action: Pick a Wi-Fi network to connect to.
|
|
* <p>Input: Nothing.
|
|
* <p>Output: Nothing.
|
|
*/
|
|
@SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
|
|
public static final String ACTION_PICK_WIFI_NETWORK = "android.net.wifi.PICK_WIFI_NETWORK";
|
|
|
|
/**
|
|
* In this Wi-Fi lock mode, Wi-Fi will be kept active,
|
|
* and will behave normally, i.e., it will attempt to automatically
|
|
* establish a connection to a remembered access point that is
|
|
* within range, and will do periodic scans if there are remembered
|
|
* access points but none are in range.
|
|
*/
|
|
public static final int WIFI_MODE_FULL = 1;
|
|
/**
|
|
* In this Wi-Fi lock mode, Wi-Fi will be kept active,
|
|
* but the only operation that will be supported is initiation of
|
|
* scans, and the subsequent reporting of scan results. No attempts
|
|
* will be made to automatically connect to remembered access points,
|
|
* nor will periodic scans be automatically performed looking for
|
|
* remembered access points. Scans must be explicitly requested by
|
|
* an application in this mode.
|
|
*/
|
|
public static final int WIFI_MODE_SCAN_ONLY = 2;
|
|
/**
|
|
* In this Wi-Fi lock mode, Wi-Fi will be kept active as in mode
|
|
* {@link #WIFI_MODE_FULL} but it operates at high performance
|
|
* with minimum packet loss and low packet latency even when
|
|
* the device screen is off. This mode will consume more power
|
|
* and hence should be used only when there is a need for such
|
|
* an active connection.
|
|
* <p>
|
|
* An example use case is when a voice connection needs to be
|
|
* kept active even after the device screen goes off. Holding the
|
|
* regular {@link #WIFI_MODE_FULL} lock will keep the wifi
|
|
* connection active, but the connection can be lossy.
|
|
* Holding a {@link #WIFI_MODE_FULL_HIGH_PERF} lock for the
|
|
* duration of the voice call will improve the call quality.
|
|
* <p>
|
|
* When there is no support from the hardware, this lock mode
|
|
* will have the same behavior as {@link #WIFI_MODE_FULL}
|
|
*/
|
|
public static final int WIFI_MODE_FULL_HIGH_PERF = 3;
|
|
|
|
/** Anything worse than or equal to this will show 0 bars. */
|
|
private static final int MIN_RSSI = -100;
|
|
|
|
/** Anything better than or equal to this will show the max bars. */
|
|
private static final int MAX_RSSI = -55;
|
|
|
|
/**
|
|
* Number of RSSI levels used in the framework to initiate
|
|
* {@link #RSSI_CHANGED_ACTION} broadcast
|
|
* @hide
|
|
*/
|
|
public static final int RSSI_LEVELS = 5;
|
|
|
|
/**
|
|
* Auto settings in the driver. The driver could choose to operate on both
|
|
* 2.4 GHz and 5 GHz or make a dynamic decision on selecting the band.
|
|
* @hide
|
|
*/
|
|
public static final int WIFI_FREQUENCY_BAND_AUTO = 0;
|
|
|
|
/**
|
|
* Operation on 5 GHz alone
|
|
* @hide
|
|
*/
|
|
public static final int WIFI_FREQUENCY_BAND_5GHZ = 1;
|
|
|
|
/**
|
|
* Operation on 2.4 GHz alone
|
|
* @hide
|
|
*/
|
|
public static final int WIFI_FREQUENCY_BAND_2GHZ = 2;
|
|
|
|
/** List of asyncronous notifications
|
|
* @hide
|
|
*/
|
|
public static final int DATA_ACTIVITY_NOTIFICATION = 1;
|
|
|
|
//Lowest bit indicates data reception and the second lowest
|
|
//bit indicates data transmitted
|
|
/** @hide */
|
|
public static final int DATA_ACTIVITY_NONE = 0x00;
|
|
/** @hide */
|
|
public static final int DATA_ACTIVITY_IN = 0x01;
|
|
/** @hide */
|
|
public static final int DATA_ACTIVITY_OUT = 0x02;
|
|
/** @hide */
|
|
public static final int DATA_ACTIVITY_INOUT = 0x03;
|
|
|
|
/* Maximum number of active locks we allow.
|
|
* This limit was added to prevent apps from creating a ridiculous number
|
|
* of locks and crashing the system by overflowing the global ref table.
|
|
*/
|
|
private static final int MAX_ACTIVE_LOCKS = 50;
|
|
|
|
/* Number of currently active WifiLocks and MulticastLocks */
|
|
private int mActiveLockCount;
|
|
|
|
private Context mContext;
|
|
IWifiManager mService;
|
|
|
|
private static final int INVALID_KEY = 0;
|
|
private int mListenerKey = 1;
|
|
private final SparseArray mListenerMap = new SparseArray();
|
|
private final Object mListenerMapLock = new Object();
|
|
|
|
private AsyncChannel mAsyncChannel = new AsyncChannel();
|
|
private ServiceHandler mHandler;
|
|
private Messenger mWifiServiceMessenger;
|
|
private final CountDownLatch mConnected = new CountDownLatch(1);
|
|
|
|
private static Object sThreadRefLock = new Object();
|
|
private static int sThreadRefCount;
|
|
private static HandlerThread sHandlerThread;
|
|
|
|
/**
|
|
* Create a new WifiManager instance.
|
|
* Applications will almost always want to use
|
|
* {@link android.content.Context#getSystemService Context.getSystemService()} to retrieve
|
|
* the standard {@link android.content.Context#WIFI_SERVICE Context.WIFI_SERVICE}.
|
|
* @param context the application context
|
|
* @param service the Binder interface
|
|
* @hide - hide this because it takes in a parameter of type IWifiManager, which
|
|
* is a system private class.
|
|
*/
|
|
public WifiManager(Context context, IWifiManager service) {
|
|
mContext = context;
|
|
mService = service;
|
|
init();
|
|
}
|
|
|
|
/**
|
|
* Return a list of all the networks configured in the supplicant.
|
|
* Not all fields of WifiConfiguration are returned. Only the following
|
|
* fields are filled in:
|
|
* <ul>
|
|
* <li>networkId</li>
|
|
* <li>SSID</li>
|
|
* <li>BSSID</li>
|
|
* <li>priority</li>
|
|
* <li>allowedProtocols</li>
|
|
* <li>allowedKeyManagement</li>
|
|
* <li>allowedAuthAlgorithms</li>
|
|
* <li>allowedPairwiseCiphers</li>
|
|
* <li>allowedGroupCiphers</li>
|
|
* </ul>
|
|
* @return a list of network configurations in the form of a list
|
|
* of {@link WifiConfiguration} objects. Upon failure to fetch or
|
|
* when when Wi-Fi is turned off, it can be null.
|
|
*/
|
|
public List<WifiConfiguration> getConfiguredNetworks() {
|
|
try {
|
|
return mService.getConfiguredNetworks();
|
|
} catch (RemoteException e) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add a new network description to the set of configured networks.
|
|
* The {@code networkId} field of the supplied configuration object
|
|
* is ignored.
|
|
* <p/>
|
|
* The new network will be marked DISABLED by default. To enable it,
|
|
* called {@link #enableNetwork}.
|
|
*
|
|
* @param config the set of variables that describe the configuration,
|
|
* contained in a {@link WifiConfiguration} object.
|
|
* @return the ID of the newly created network description. This is used in
|
|
* other operations to specified the network to be acted upon.
|
|
* Returns {@code -1} on failure.
|
|
*/
|
|
public int addNetwork(WifiConfiguration config) {
|
|
if (config == null) {
|
|
return -1;
|
|
}
|
|
config.networkId = -1;
|
|
return addOrUpdateNetwork(config);
|
|
}
|
|
|
|
/**
|
|
* Update the network description of an existing configured network.
|
|
*
|
|
* @param config the set of variables that describe the configuration,
|
|
* contained in a {@link WifiConfiguration} object. It may
|
|
* be sparse, so that only the items that are being changed
|
|
* are non-<code>null</code>. The {@code networkId} field
|
|
* must be set to the ID of the existing network being updated.
|
|
* @return Returns the {@code networkId} of the supplied
|
|
* {@code WifiConfiguration} on success.
|
|
* <br/>
|
|
* Returns {@code -1} on failure, including when the {@code networkId}
|
|
* field of the {@code WifiConfiguration} does not refer to an
|
|
* existing network.
|
|
*/
|
|
public int updateNetwork(WifiConfiguration config) {
|
|
if (config == null || config.networkId < 0) {
|
|
return -1;
|
|
}
|
|
return addOrUpdateNetwork(config);
|
|
}
|
|
|
|
/**
|
|
* Internal method for doing the RPC that creates a new network description
|
|
* or updates an existing one.
|
|
*
|
|
* @param config The possibly sparse object containing the variables that
|
|
* are to set or updated in the network description.
|
|
* @return the ID of the network on success, {@code -1} on failure.
|
|
*/
|
|
private int addOrUpdateNetwork(WifiConfiguration config) {
|
|
try {
|
|
return mService.addOrUpdateNetwork(config);
|
|
} catch (RemoteException e) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Remove the specified network from the list of configured networks.
|
|
* This may result in the asynchronous delivery of state change
|
|
* events.
|
|
* @param netId the integer that identifies the network configuration
|
|
* to the supplicant
|
|
* @return {@code true} if the operation succeeded
|
|
*/
|
|
public boolean removeNetwork(int netId) {
|
|
try {
|
|
return mService.removeNetwork(netId);
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Allow a previously configured network to be associated with. If
|
|
* <code>disableOthers</code> is true, then all other configured
|
|
* networks are disabled, and an attempt to connect to the selected
|
|
* network is initiated. This may result in the asynchronous delivery
|
|
* of state change events.
|
|
* @param netId the ID of the network in the list of configured networks
|
|
* @param disableOthers if true, disable all other networks. The way to
|
|
* select a particular network to connect to is specify {@code true}
|
|
* for this parameter.
|
|
* @return {@code true} if the operation succeeded
|
|
*/
|
|
public boolean enableNetwork(int netId, boolean disableOthers) {
|
|
try {
|
|
return mService.enableNetwork(netId, disableOthers);
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Disable a configured network. The specified network will not be
|
|
* a candidate for associating. This may result in the asynchronous
|
|
* delivery of state change events.
|
|
* @param netId the ID of the network as returned by {@link #addNetwork}.
|
|
* @return {@code true} if the operation succeeded
|
|
*/
|
|
public boolean disableNetwork(int netId) {
|
|
try {
|
|
return mService.disableNetwork(netId);
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Disassociate from the currently active access point. This may result
|
|
* in the asynchronous delivery of state change events.
|
|
* @return {@code true} if the operation succeeded
|
|
*/
|
|
public boolean disconnect() {
|
|
try {
|
|
mService.disconnect();
|
|
return true;
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Reconnect to the currently active access point, if we are currently
|
|
* disconnected. This may result in the asynchronous delivery of state
|
|
* change events.
|
|
* @return {@code true} if the operation succeeded
|
|
*/
|
|
public boolean reconnect() {
|
|
try {
|
|
mService.reconnect();
|
|
return true;
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Reconnect to the currently active access point, even if we are already
|
|
* connected. This may result in the asynchronous delivery of state
|
|
* change events.
|
|
* @return {@code true} if the operation succeeded
|
|
*/
|
|
public boolean reassociate() {
|
|
try {
|
|
mService.reassociate();
|
|
return true;
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check that the supplicant daemon is responding to requests.
|
|
* @return {@code true} if we were able to communicate with the supplicant and
|
|
* it returned the expected response to the PING message.
|
|
*/
|
|
public boolean pingSupplicant() {
|
|
if (mService == null)
|
|
return false;
|
|
try {
|
|
return mService.pingSupplicant();
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Request a scan for access points. Returns immediately. The availability
|
|
* of the results is made known later by means of an asynchronous event sent
|
|
* on completion of the scan.
|
|
* @return {@code true} if the operation succeeded, i.e., the scan was initiated
|
|
*/
|
|
public boolean startScan() {
|
|
try {
|
|
mService.startScan(false);
|
|
return true;
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Request a scan for access points. Returns immediately. The availability
|
|
* of the results is made known later by means of an asynchronous event sent
|
|
* on completion of the scan.
|
|
* This is a variant of startScan that forces an active scan, even if passive
|
|
* scans are the current default
|
|
* @return {@code true} if the operation succeeded, i.e., the scan was initiated
|
|
*
|
|
* @hide
|
|
*/
|
|
public boolean startScanActive() {
|
|
try {
|
|
mService.startScan(true);
|
|
return true;
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return dynamic information about the current Wi-Fi connection, if any is active.
|
|
* @return the Wi-Fi information, contained in {@link WifiInfo}.
|
|
*/
|
|
public WifiInfo getConnectionInfo() {
|
|
try {
|
|
return mService.getConnectionInfo();
|
|
} catch (RemoteException e) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return the results of the latest access point scan.
|
|
* @return the list of access points found in the most recent scan.
|
|
*/
|
|
public List<ScanResult> getScanResults() {
|
|
try {
|
|
return mService.getScanResults(mContext.getBasePackageName());
|
|
} catch (RemoteException e) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Tell the supplicant to persist the current list of configured networks.
|
|
* <p>
|
|
* Note: It is possible for this method to change the network IDs of
|
|
* existing networks. You should assume the network IDs can be different
|
|
* after calling this method.
|
|
*
|
|
* @return {@code true} if the operation succeeded
|
|
*/
|
|
public boolean saveConfiguration() {
|
|
try {
|
|
return mService.saveConfiguration();
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set the country code.
|
|
* @param countryCode country code in ISO 3166 format.
|
|
* @param persist {@code true} if this needs to be remembered
|
|
*
|
|
* @hide
|
|
*/
|
|
public void setCountryCode(String country, boolean persist) {
|
|
try {
|
|
mService.setCountryCode(country, persist);
|
|
} catch (RemoteException e) { }
|
|
}
|
|
|
|
/**
|
|
* Set the operational frequency band.
|
|
* @param band One of
|
|
* {@link #WIFI_FREQUENCY_BAND_AUTO},
|
|
* {@link #WIFI_FREQUENCY_BAND_5GHZ},
|
|
* {@link #WIFI_FREQUENCY_BAND_2GHZ},
|
|
* @param persist {@code true} if this needs to be remembered
|
|
* @hide
|
|
*/
|
|
public void setFrequencyBand(int band, boolean persist) {
|
|
try {
|
|
mService.setFrequencyBand(band, persist);
|
|
} catch (RemoteException e) { }
|
|
}
|
|
|
|
/**
|
|
* Get the operational frequency band.
|
|
* @return One of
|
|
* {@link #WIFI_FREQUENCY_BAND_AUTO},
|
|
* {@link #WIFI_FREQUENCY_BAND_5GHZ},
|
|
* {@link #WIFI_FREQUENCY_BAND_2GHZ} or
|
|
* {@code -1} on failure.
|
|
* @hide
|
|
*/
|
|
public int getFrequencyBand() {
|
|
try {
|
|
return mService.getFrequencyBand();
|
|
} catch (RemoteException e) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check if the chipset supports dual frequency band (2.4 GHz and 5 GHz)
|
|
* @return {@code true} if supported, {@code false} otherwise.
|
|
* @hide
|
|
*/
|
|
public boolean isDualBandSupported() {
|
|
try {
|
|
return mService.isDualBandSupported();
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return the DHCP-assigned addresses from the last successful DHCP request,
|
|
* if any.
|
|
* @return the DHCP information
|
|
* @deprecated - use ConnectivityManager.getLinkProperties instead. TODO - remove 11/2013
|
|
*/
|
|
public DhcpInfo getDhcpInfo() {
|
|
try {
|
|
return mService.getDhcpInfo();
|
|
} catch (RemoteException e) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Enable or disable Wi-Fi.
|
|
* @param enabled {@code true} to enable, {@code false} to disable.
|
|
* @return {@code true} if the operation succeeds (or if the existing state
|
|
* is the same as the requested state).
|
|
*/
|
|
public boolean setWifiEnabled(boolean enabled) {
|
|
try {
|
|
return mService.setWifiEnabled(enabled);
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets the Wi-Fi enabled state.
|
|
* @return One of {@link #WIFI_STATE_DISABLED},
|
|
* {@link #WIFI_STATE_DISABLING}, {@link #WIFI_STATE_ENABLED},
|
|
* {@link #WIFI_STATE_ENABLING}, {@link #WIFI_STATE_UNKNOWN}
|
|
* @see #isWifiEnabled()
|
|
*/
|
|
public int getWifiState() {
|
|
try {
|
|
return mService.getWifiEnabledState();
|
|
} catch (RemoteException e) {
|
|
return WIFI_STATE_UNKNOWN;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return whether Wi-Fi is enabled or disabled.
|
|
* @return {@code true} if Wi-Fi is enabled
|
|
* @see #getWifiState()
|
|
*/
|
|
public boolean isWifiEnabled() {
|
|
return getWifiState() == WIFI_STATE_ENABLED;
|
|
}
|
|
|
|
/**
|
|
* Return TX packet counter, for CTS test of WiFi watchdog.
|
|
* @param listener is the interface to receive result
|
|
*
|
|
* @hide for CTS test only
|
|
*/
|
|
public void getTxPacketCount(TxPacketCountListener listener) {
|
|
validateChannel();
|
|
mAsyncChannel.sendMessage(RSSI_PKTCNT_FETCH, 0, putListener(listener));
|
|
}
|
|
|
|
/**
|
|
* Calculates the level of the signal. This should be used any time a signal
|
|
* is being shown.
|
|
*
|
|
* @param rssi The power of the signal measured in RSSI.
|
|
* @param numLevels The number of levels to consider in the calculated
|
|
* level.
|
|
* @return A level of the signal, given in the range of 0 to numLevels-1
|
|
* (both inclusive).
|
|
*/
|
|
public static int calculateSignalLevel(int rssi, int numLevels) {
|
|
if (rssi <= MIN_RSSI) {
|
|
return 0;
|
|
} else if (rssi >= MAX_RSSI) {
|
|
return numLevels - 1;
|
|
} else {
|
|
float inputRange = (MAX_RSSI - MIN_RSSI);
|
|
float outputRange = (numLevels - 1);
|
|
return (int)((float)(rssi - MIN_RSSI) * outputRange / inputRange);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Compares two signal strengths.
|
|
*
|
|
* @param rssiA The power of the first signal measured in RSSI.
|
|
* @param rssiB The power of the second signal measured in RSSI.
|
|
* @return Returns <0 if the first signal is weaker than the second signal,
|
|
* 0 if the two signals have the same strength, and >0 if the first
|
|
* signal is stronger than the second signal.
|
|
*/
|
|
public static int compareSignalLevel(int rssiA, int rssiB) {
|
|
return rssiA - rssiB;
|
|
}
|
|
|
|
/**
|
|
* Start AccessPoint mode with the specified
|
|
* configuration. If the radio is already running in
|
|
* AP mode, update the new configuration
|
|
* Note that starting in access point mode disables station
|
|
* mode operation
|
|
* @param wifiConfig SSID, security and channel details as
|
|
* part of WifiConfiguration
|
|
* @return {@code true} if the operation succeeds, {@code false} otherwise
|
|
*
|
|
* @hide Dont open up yet
|
|
*/
|
|
public boolean setWifiApEnabled(WifiConfiguration wifiConfig, boolean enabled) {
|
|
try {
|
|
mService.setWifiApEnabled(wifiConfig, enabled);
|
|
return true;
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets the Wi-Fi enabled state.
|
|
* @return One of {@link #WIFI_AP_STATE_DISABLED},
|
|
* {@link #WIFI_AP_STATE_DISABLING}, {@link #WIFI_AP_STATE_ENABLED},
|
|
* {@link #WIFI_AP_STATE_ENABLING}, {@link #WIFI_AP_STATE_FAILED}
|
|
* @see #isWifiApEnabled()
|
|
*
|
|
* @hide Dont open yet
|
|
*/
|
|
public int getWifiApState() {
|
|
try {
|
|
return mService.getWifiApEnabledState();
|
|
} catch (RemoteException e) {
|
|
return WIFI_AP_STATE_FAILED;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return whether Wi-Fi AP is enabled or disabled.
|
|
* @return {@code true} if Wi-Fi AP is enabled
|
|
* @see #getWifiApState()
|
|
*
|
|
* @hide Dont open yet
|
|
*/
|
|
public boolean isWifiApEnabled() {
|
|
return getWifiApState() == WIFI_AP_STATE_ENABLED;
|
|
}
|
|
|
|
/**
|
|
* Gets the Wi-Fi AP Configuration.
|
|
* @return AP details in WifiConfiguration
|
|
*
|
|
* @hide Dont open yet
|
|
*/
|
|
public WifiConfiguration getWifiApConfiguration() {
|
|
try {
|
|
return mService.getWifiApConfiguration();
|
|
} catch (RemoteException e) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets the Wi-Fi AP Configuration.
|
|
* @return {@code true} if the operation succeeded, {@code false} otherwise
|
|
*
|
|
* @hide Dont open yet
|
|
*/
|
|
public boolean setWifiApConfiguration(WifiConfiguration wifiConfig) {
|
|
try {
|
|
mService.setWifiApConfiguration(wifiConfig);
|
|
return true;
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Start the driver and connect to network.
|
|
*
|
|
* This function will over-ride WifiLock and device idle status. For example,
|
|
* even if the device is idle or there is only a scan-only lock held,
|
|
* a start wifi would mean that wifi connection is kept active until
|
|
* a stopWifi() is sent.
|
|
*
|
|
* This API is used by WifiStateTracker
|
|
*
|
|
* @return {@code true} if the operation succeeds else {@code false}
|
|
* @hide
|
|
*/
|
|
public boolean startWifi() {
|
|
try {
|
|
mService.startWifi();
|
|
return true;
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Disconnect from a network (if any) and stop the driver.
|
|
*
|
|
* This function will over-ride WifiLock and device idle status. Wi-Fi
|
|
* stays inactive until a startWifi() is issued.
|
|
*
|
|
* This API is used by WifiStateTracker
|
|
*
|
|
* @return {@code true} if the operation succeeds else {@code false}
|
|
* @hide
|
|
*/
|
|
public boolean stopWifi() {
|
|
try {
|
|
mService.stopWifi();
|
|
return true;
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add a bssid to the supplicant blacklist
|
|
*
|
|
* This API is used by WifiWatchdogService
|
|
*
|
|
* @return {@code true} if the operation succeeds else {@code false}
|
|
* @hide
|
|
*/
|
|
public boolean addToBlacklist(String bssid) {
|
|
try {
|
|
mService.addToBlacklist(bssid);
|
|
return true;
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Clear the supplicant blacklist
|
|
*
|
|
* This API is used by WifiWatchdogService
|
|
*
|
|
* @return {@code true} if the operation succeeds else {@code false}
|
|
* @hide
|
|
*/
|
|
public boolean clearBlacklist() {
|
|
try {
|
|
mService.clearBlacklist();
|
|
return true;
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/* TODO: deprecate synchronous API and open up the following API */
|
|
|
|
private static final int BASE = Protocol.BASE_WIFI_MANAGER;
|
|
|
|
/* Commands to WifiService */
|
|
/** @hide */
|
|
public static final int CONNECT_NETWORK = BASE + 1;
|
|
/** @hide */
|
|
public static final int CONNECT_NETWORK_FAILED = BASE + 2;
|
|
/** @hide */
|
|
public static final int CONNECT_NETWORK_SUCCEEDED = BASE + 3;
|
|
|
|
/** @hide */
|
|
public static final int FORGET_NETWORK = BASE + 4;
|
|
/** @hide */
|
|
public static final int FORGET_NETWORK_FAILED = BASE + 5;
|
|
/** @hide */
|
|
public static final int FORGET_NETWORK_SUCCEEDED = BASE + 6;
|
|
|
|
/** @hide */
|
|
public static final int SAVE_NETWORK = BASE + 7;
|
|
/** @hide */
|
|
public static final int SAVE_NETWORK_FAILED = BASE + 8;
|
|
/** @hide */
|
|
public static final int SAVE_NETWORK_SUCCEEDED = BASE + 9;
|
|
|
|
/** @hide */
|
|
public static final int START_WPS = BASE + 10;
|
|
/** @hide */
|
|
public static final int START_WPS_SUCCEEDED = BASE + 11;
|
|
/** @hide */
|
|
public static final int WPS_FAILED = BASE + 12;
|
|
/** @hide */
|
|
public static final int WPS_COMPLETED = BASE + 13;
|
|
|
|
/** @hide */
|
|
public static final int CANCEL_WPS = BASE + 14;
|
|
/** @hide */
|
|
public static final int CANCEL_WPS_FAILED = BASE + 15;
|
|
/** @hide */
|
|
public static final int CANCEL_WPS_SUCCEDED = BASE + 16;
|
|
|
|
/** @hide */
|
|
public static final int DISABLE_NETWORK = BASE + 17;
|
|
/** @hide */
|
|
public static final int DISABLE_NETWORK_FAILED = BASE + 18;
|
|
/** @hide */
|
|
public static final int DISABLE_NETWORK_SUCCEEDED = BASE + 19;
|
|
|
|
/** @hide */
|
|
public static final int RSSI_PKTCNT_FETCH = BASE + 20;
|
|
/** @hide */
|
|
public static final int RSSI_PKTCNT_FETCH_SUCCEEDED = BASE + 21;
|
|
/** @hide */
|
|
public static final int RSSI_PKTCNT_FETCH_FAILED = BASE + 22;
|
|
|
|
/* For system use only */
|
|
/** @hide */
|
|
public static final int ENABLE_TRAFFIC_STATS_POLL = BASE + 31;
|
|
/** @hide */
|
|
public static final int TRAFFIC_STATS_POLL = BASE + 32;
|
|
|
|
|
|
/**
|
|
* Passed with {@link ActionListener#onFailure}.
|
|
* Indicates that the operation failed due to an internal error.
|
|
* @hide
|
|
*/
|
|
public static final int ERROR = 0;
|
|
|
|
/**
|
|
* Passed with {@link ActionListener#onFailure}.
|
|
* Indicates that the operation is already in progress
|
|
* @hide
|
|
*/
|
|
public static final int IN_PROGRESS = 1;
|
|
|
|
/**
|
|
* Passed with {@link ActionListener#onFailure}.
|
|
* Indicates that the operation failed because the framework is busy and
|
|
* unable to service the request
|
|
* @hide
|
|
*/
|
|
public static final int BUSY = 2;
|
|
|
|
/* WPS specific errors */
|
|
/** WPS overlap detected {@hide} */
|
|
public static final int WPS_OVERLAP_ERROR = 3;
|
|
/** WEP on WPS is prohibited {@hide} */
|
|
public static final int WPS_WEP_PROHIBITED = 4;
|
|
/** TKIP only prohibited {@hide} */
|
|
public static final int WPS_TKIP_ONLY_PROHIBITED = 5;
|
|
/** Authentication failure on WPS {@hide} */
|
|
public static final int WPS_AUTH_FAILURE = 6;
|
|
/** WPS timed out {@hide} */
|
|
public static final int WPS_TIMED_OUT = 7;
|
|
|
|
/** Interface for callback invocation on an application action {@hide} */
|
|
public interface ActionListener {
|
|
/** The operation succeeded */
|
|
public void onSuccess();
|
|
/**
|
|
* The operation failed
|
|
* @param reason The reason for failure could be one of
|
|
* {@link #ERROR}, {@link #IN_PROGRESS} or {@link #BUSY}
|
|
*/
|
|
public void onFailure(int reason);
|
|
}
|
|
|
|
/** Interface for callback invocation on a start WPS action {@hide} */
|
|
public interface WpsListener {
|
|
/** WPS start succeeded */
|
|
public void onStartSuccess(String pin);
|
|
|
|
/** WPS operation completed succesfully */
|
|
public void onCompletion();
|
|
|
|
/**
|
|
* WPS operation failed
|
|
* @param reason The reason for failure could be one of
|
|
* {@link #IN_PROGRESS}, {@link #WPS_OVERLAP_ERROR},{@link #ERROR} or {@link #BUSY}
|
|
*/
|
|
public void onFailure(int reason);
|
|
}
|
|
|
|
/** Interface for callback invocation on a TX packet count poll action {@hide} */
|
|
public interface TxPacketCountListener {
|
|
/**
|
|
* The operation succeeded
|
|
* @param count TX packet counter
|
|
*/
|
|
public void onSuccess(int count);
|
|
/**
|
|
* The operation failed
|
|
* @param reason The reason for failure could be one of
|
|
* {@link #ERROR}, {@link #IN_PROGRESS} or {@link #BUSY}
|
|
*/
|
|
public void onFailure(int reason);
|
|
}
|
|
|
|
private class ServiceHandler extends Handler {
|
|
ServiceHandler(Looper looper) {
|
|
super(looper);
|
|
}
|
|
|
|
@Override
|
|
public void handleMessage(Message message) {
|
|
Object listener = removeListener(message.arg2);
|
|
switch (message.what) {
|
|
case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED:
|
|
if (message.arg1 == AsyncChannel.STATUS_SUCCESSFUL) {
|
|
mAsyncChannel.sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION);
|
|
} else {
|
|
Log.e(TAG, "Failed to set up channel connection");
|
|
// This will cause all further async API calls on the WifiManager
|
|
// to fail and throw an exception
|
|
mAsyncChannel = null;
|
|
}
|
|
mConnected.countDown();
|
|
break;
|
|
case AsyncChannel.CMD_CHANNEL_FULLY_CONNECTED:
|
|
// Ignore
|
|
break;
|
|
case AsyncChannel.CMD_CHANNEL_DISCONNECTED:
|
|
Log.e(TAG, "Channel connection lost");
|
|
// This will cause all further async API calls on the WifiManager
|
|
// to fail and throw an exception
|
|
mAsyncChannel = null;
|
|
getLooper().quit();
|
|
break;
|
|
/* ActionListeners grouped together */
|
|
case WifiManager.CONNECT_NETWORK_FAILED:
|
|
case WifiManager.FORGET_NETWORK_FAILED:
|
|
case WifiManager.SAVE_NETWORK_FAILED:
|
|
case WifiManager.CANCEL_WPS_FAILED:
|
|
case WifiManager.DISABLE_NETWORK_FAILED:
|
|
if (listener != null) {
|
|
((ActionListener) listener).onFailure(message.arg1);
|
|
}
|
|
break;
|
|
/* ActionListeners grouped together */
|
|
case WifiManager.CONNECT_NETWORK_SUCCEEDED:
|
|
case WifiManager.FORGET_NETWORK_SUCCEEDED:
|
|
case WifiManager.SAVE_NETWORK_SUCCEEDED:
|
|
case WifiManager.CANCEL_WPS_SUCCEDED:
|
|
case WifiManager.DISABLE_NETWORK_SUCCEEDED:
|
|
if (listener != null) {
|
|
((ActionListener) listener).onSuccess();
|
|
}
|
|
break;
|
|
case WifiManager.START_WPS_SUCCEEDED:
|
|
if (listener != null) {
|
|
WpsResult result = (WpsResult) message.obj;
|
|
((WpsListener) listener).onStartSuccess(result.pin);
|
|
//Listener needs to stay until completion or failure
|
|
synchronized(mListenerMapLock) {
|
|
mListenerMap.put(message.arg2, listener);
|
|
}
|
|
}
|
|
break;
|
|
case WifiManager.WPS_COMPLETED:
|
|
if (listener != null) {
|
|
((WpsListener) listener).onCompletion();
|
|
}
|
|
break;
|
|
case WifiManager.WPS_FAILED:
|
|
if (listener != null) {
|
|
((WpsListener) listener).onFailure(message.arg1);
|
|
}
|
|
break;
|
|
case WifiManager.RSSI_PKTCNT_FETCH_SUCCEEDED:
|
|
if (listener != null) {
|
|
RssiPacketCountInfo info = (RssiPacketCountInfo) message.obj;
|
|
if (info != null)
|
|
((TxPacketCountListener) listener).onSuccess(info.txgood + info.txbad);
|
|
else
|
|
((TxPacketCountListener) listener).onFailure(ERROR);
|
|
}
|
|
break;
|
|
case WifiManager.RSSI_PKTCNT_FETCH_FAILED:
|
|
if (listener != null) {
|
|
((TxPacketCountListener) listener).onFailure(message.arg1);
|
|
}
|
|
break;
|
|
default:
|
|
//ignore
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
private int putListener(Object listener) {
|
|
if (listener == null) return INVALID_KEY;
|
|
int key;
|
|
synchronized (mListenerMapLock) {
|
|
do {
|
|
key = mListenerKey++;
|
|
} while (key == INVALID_KEY);
|
|
mListenerMap.put(key, listener);
|
|
}
|
|
return key;
|
|
}
|
|
|
|
private Object removeListener(int key) {
|
|
if (key == INVALID_KEY) return null;
|
|
synchronized (mListenerMapLock) {
|
|
Object listener = mListenerMap.get(key);
|
|
mListenerMap.remove(key);
|
|
return listener;
|
|
}
|
|
}
|
|
|
|
private void init() {
|
|
mWifiServiceMessenger = getWifiServiceMessenger();
|
|
if (mWifiServiceMessenger == null) {
|
|
mAsyncChannel = null;
|
|
return;
|
|
}
|
|
|
|
synchronized (sThreadRefLock) {
|
|
if (++sThreadRefCount == 1) {
|
|
sHandlerThread = new HandlerThread("WifiManager");
|
|
sHandlerThread.start();
|
|
}
|
|
}
|
|
|
|
mHandler = new ServiceHandler(sHandlerThread.getLooper());
|
|
mAsyncChannel.connect(mContext, mHandler, mWifiServiceMessenger);
|
|
try {
|
|
mConnected.await();
|
|
} catch (InterruptedException e) {
|
|
Log.e(TAG, "interrupted wait at init");
|
|
}
|
|
}
|
|
|
|
private void validateChannel() {
|
|
if (mAsyncChannel == null) throw new IllegalStateException(
|
|
"No permission to access and change wifi or a bad initialization");
|
|
}
|
|
|
|
/**
|
|
* Connect to a network with the given configuration. The network also
|
|
* gets added to the supplicant configuration.
|
|
*
|
|
* For a new network, this function is used instead of a
|
|
* sequence of addNetwork(), enableNetwork(), saveConfiguration() and
|
|
* reconnect()
|
|
*
|
|
* @param config the set of variables that describe the configuration,
|
|
* contained in a {@link WifiConfiguration} object.
|
|
* @param listener for callbacks on success or failure. Can be null.
|
|
* @throws IllegalStateException if the WifiManager instance needs to be
|
|
* initialized again
|
|
*
|
|
* @hide
|
|
*/
|
|
public void connect(WifiConfiguration config, ActionListener listener) {
|
|
if (config == null) throw new IllegalArgumentException("config cannot be null");
|
|
validateChannel();
|
|
// Use INVALID_NETWORK_ID for arg1 when passing a config object
|
|
// arg1 is used to pass network id when the network already exists
|
|
mAsyncChannel.sendMessage(CONNECT_NETWORK, WifiConfiguration.INVALID_NETWORK_ID,
|
|
putListener(listener), config);
|
|
}
|
|
|
|
/**
|
|
* Connect to a network with the given networkId.
|
|
*
|
|
* This function is used instead of a enableNetwork(), saveConfiguration() and
|
|
* reconnect()
|
|
*
|
|
* @param networkId the network id identifiying the network in the
|
|
* supplicant configuration list
|
|
* @param listener for callbacks on success or failure. Can be null.
|
|
* @throws IllegalStateException if the WifiManager instance needs to be
|
|
* initialized again
|
|
* @hide
|
|
*/
|
|
public void connect(int networkId, ActionListener listener) {
|
|
if (networkId < 0) throw new IllegalArgumentException("Network id cannot be negative");
|
|
validateChannel();
|
|
mAsyncChannel.sendMessage(CONNECT_NETWORK, networkId, putListener(listener));
|
|
}
|
|
|
|
/**
|
|
* Save the given network in the supplicant config. If the network already
|
|
* exists, the configuration is updated. A new network is enabled
|
|
* by default.
|
|
*
|
|
* For a new network, this function is used instead of a
|
|
* sequence of addNetwork(), enableNetwork() and saveConfiguration().
|
|
*
|
|
* For an existing network, it accomplishes the task of updateNetwork()
|
|
* and saveConfiguration()
|
|
*
|
|
* @param config the set of variables that describe the configuration,
|
|
* contained in a {@link WifiConfiguration} object.
|
|
* @param listener for callbacks on success or failure. Can be null.
|
|
* @throws IllegalStateException if the WifiManager instance needs to be
|
|
* initialized again
|
|
* @hide
|
|
*/
|
|
public void save(WifiConfiguration config, ActionListener listener) {
|
|
if (config == null) throw new IllegalArgumentException("config cannot be null");
|
|
validateChannel();
|
|
mAsyncChannel.sendMessage(SAVE_NETWORK, 0, putListener(listener), config);
|
|
}
|
|
|
|
/**
|
|
* Delete the network in the supplicant config.
|
|
*
|
|
* This function is used instead of a sequence of removeNetwork()
|
|
* and saveConfiguration().
|
|
*
|
|
* @param config the set of variables that describe the configuration,
|
|
* contained in a {@link WifiConfiguration} object.
|
|
* @param listener for callbacks on success or failure. Can be null.
|
|
* @throws IllegalStateException if the WifiManager instance needs to be
|
|
* initialized again
|
|
* @hide
|
|
*/
|
|
public void forget(int netId, ActionListener listener) {
|
|
if (netId < 0) throw new IllegalArgumentException("Network id cannot be negative");
|
|
validateChannel();
|
|
mAsyncChannel.sendMessage(FORGET_NETWORK, netId, putListener(listener));
|
|
}
|
|
|
|
/**
|
|
* Disable network
|
|
*
|
|
* @param netId is the network Id
|
|
* @param listener for callbacks on success or failure. Can be null.
|
|
* @throws IllegalStateException if the WifiManager instance needs to be
|
|
* initialized again
|
|
* @hide
|
|
*/
|
|
public void disable(int netId, ActionListener listener) {
|
|
if (netId < 0) throw new IllegalArgumentException("Network id cannot be negative");
|
|
validateChannel();
|
|
mAsyncChannel.sendMessage(DISABLE_NETWORK, netId, putListener(listener));
|
|
}
|
|
|
|
/**
|
|
* Start Wi-fi Protected Setup
|
|
*
|
|
* @param config WPS configuration
|
|
* @param listener for callbacks on success or failure. Can be null.
|
|
* @throws IllegalStateException if the WifiManager instance needs to be
|
|
* initialized again
|
|
* @hide
|
|
*/
|
|
public void startWps(WpsInfo config, WpsListener listener) {
|
|
if (config == null) throw new IllegalArgumentException("config cannot be null");
|
|
validateChannel();
|
|
mAsyncChannel.sendMessage(START_WPS, 0, putListener(listener), config);
|
|
}
|
|
|
|
/**
|
|
* Cancel any ongoing Wi-fi Protected Setup
|
|
*
|
|
* @param listener for callbacks on success or failure. Can be null.
|
|
* @throws IllegalStateException if the WifiManager instance needs to be
|
|
* initialized again
|
|
* @hide
|
|
*/
|
|
public void cancelWps(ActionListener listener) {
|
|
validateChannel();
|
|
mAsyncChannel.sendMessage(CANCEL_WPS, 0, putListener(listener));
|
|
}
|
|
|
|
/**
|
|
* Get a reference to WifiService handler. This is used by a client to establish
|
|
* an AsyncChannel communication with WifiService
|
|
*
|
|
* @return Messenger pointing to the WifiService handler
|
|
* @hide
|
|
*/
|
|
public Messenger getWifiServiceMessenger() {
|
|
try {
|
|
return mService.getWifiServiceMessenger();
|
|
} catch (RemoteException e) {
|
|
return null;
|
|
} catch (SecurityException e) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get a reference to WifiStateMachine handler.
|
|
* @return Messenger pointing to the WifiService handler
|
|
* @hide
|
|
*/
|
|
public Messenger getWifiStateMachineMessenger() {
|
|
try {
|
|
return mService.getWifiStateMachineMessenger();
|
|
} catch (RemoteException e) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the file in which IP and proxy configuration data is stored
|
|
* @hide
|
|
*/
|
|
public String getConfigFile() {
|
|
try {
|
|
return mService.getConfigFile();
|
|
} catch (RemoteException e) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Allows an application to keep the Wi-Fi radio awake.
|
|
* Normally the Wi-Fi radio may turn off when the user has not used the device in a while.
|
|
* Acquiring a WifiLock will keep the radio on until the lock is released. Multiple
|
|
* applications may hold WifiLocks, and the radio will only be allowed to turn off when no
|
|
* WifiLocks are held in any application.
|
|
* <p>
|
|
* Before using a WifiLock, consider carefully if your application requires Wi-Fi access, or
|
|
* could function over a mobile network, if available. A program that needs to download large
|
|
* files should hold a WifiLock to ensure that the download will complete, but a program whose
|
|
* network usage is occasional or low-bandwidth should not hold a WifiLock to avoid adversely
|
|
* affecting battery life.
|
|
* <p>
|
|
* Note that WifiLocks cannot override the user-level "Wi-Fi Enabled" setting, nor Airplane
|
|
* Mode. They simply keep the radio from turning off when Wi-Fi is already on but the device
|
|
* is idle.
|
|
* <p>
|
|
* Any application using a WifiLock must request the {@code android.permission.WAKE_LOCK}
|
|
* permission in an {@code <uses-permission>} element of the application's manifest.
|
|
*/
|
|
public class WifiLock {
|
|
private String mTag;
|
|
private final IBinder mBinder;
|
|
private int mRefCount;
|
|
int mLockType;
|
|
private boolean mRefCounted;
|
|
private boolean mHeld;
|
|
private WorkSource mWorkSource;
|
|
|
|
private WifiLock(int lockType, String tag) {
|
|
mTag = tag;
|
|
mLockType = lockType;
|
|
mBinder = new Binder();
|
|
mRefCount = 0;
|
|
mRefCounted = true;
|
|
mHeld = false;
|
|
}
|
|
|
|
/**
|
|
* Locks the Wi-Fi radio on until {@link #release} is called.
|
|
*
|
|
* If this WifiLock is reference-counted, each call to {@code acquire} will increment the
|
|
* reference count, and the radio will remain locked as long as the reference count is
|
|
* above zero.
|
|
*
|
|
* If this WifiLock is not reference-counted, the first call to {@code acquire} will lock
|
|
* the radio, but subsequent calls will be ignored. Only one call to {@link #release}
|
|
* will be required, regardless of the number of times that {@code acquire} is called.
|
|
*/
|
|
public void acquire() {
|
|
synchronized (mBinder) {
|
|
if (mRefCounted ? (++mRefCount == 1) : (!mHeld)) {
|
|
try {
|
|
mService.acquireWifiLock(mBinder, mLockType, mTag, mWorkSource);
|
|
synchronized (WifiManager.this) {
|
|
if (mActiveLockCount >= MAX_ACTIVE_LOCKS) {
|
|
mService.releaseWifiLock(mBinder);
|
|
throw new UnsupportedOperationException(
|
|
"Exceeded maximum number of wifi locks");
|
|
}
|
|
mActiveLockCount++;
|
|
}
|
|
} catch (RemoteException ignore) {
|
|
}
|
|
mHeld = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Unlocks the Wi-Fi radio, allowing it to turn off when the device is idle.
|
|
*
|
|
* If this WifiLock is reference-counted, each call to {@code release} will decrement the
|
|
* reference count, and the radio will be unlocked only when the reference count reaches
|
|
* zero. If the reference count goes below zero (that is, if {@code release} is called
|
|
* a greater number of times than {@link #acquire}), an exception is thrown.
|
|
*
|
|
* If this WifiLock is not reference-counted, the first call to {@code release} (after
|
|
* the radio was locked using {@link #acquire}) will unlock the radio, and subsequent
|
|
* calls will be ignored.
|
|
*/
|
|
public void release() {
|
|
synchronized (mBinder) {
|
|
if (mRefCounted ? (--mRefCount == 0) : (mHeld)) {
|
|
try {
|
|
mService.releaseWifiLock(mBinder);
|
|
synchronized (WifiManager.this) {
|
|
mActiveLockCount--;
|
|
}
|
|
} catch (RemoteException ignore) {
|
|
}
|
|
mHeld = false;
|
|
}
|
|
if (mRefCount < 0) {
|
|
throw new RuntimeException("WifiLock under-locked " + mTag);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Controls whether this is a reference-counted or non-reference-counted WifiLock.
|
|
*
|
|
* Reference-counted WifiLocks keep track of the number of calls to {@link #acquire} and
|
|
* {@link #release}, and only allow the radio to sleep when every call to {@link #acquire}
|
|
* has been balanced with a call to {@link #release}. Non-reference-counted WifiLocks
|
|
* lock the radio whenever {@link #acquire} is called and it is unlocked, and unlock the
|
|
* radio whenever {@link #release} is called and it is locked.
|
|
*
|
|
* @param refCounted true if this WifiLock should keep a reference count
|
|
*/
|
|
public void setReferenceCounted(boolean refCounted) {
|
|
mRefCounted = refCounted;
|
|
}
|
|
|
|
/**
|
|
* Checks whether this WifiLock is currently held.
|
|
*
|
|
* @return true if this WifiLock is held, false otherwise
|
|
*/
|
|
public boolean isHeld() {
|
|
synchronized (mBinder) {
|
|
return mHeld;
|
|
}
|
|
}
|
|
|
|
public void setWorkSource(WorkSource ws) {
|
|
synchronized (mBinder) {
|
|
if (ws != null && ws.size() == 0) {
|
|
ws = null;
|
|
}
|
|
boolean changed = true;
|
|
if (ws == null) {
|
|
mWorkSource = null;
|
|
} else if (mWorkSource == null) {
|
|
changed = mWorkSource != null;
|
|
mWorkSource = new WorkSource(ws);
|
|
} else {
|
|
changed = mWorkSource.diff(ws);
|
|
if (changed) {
|
|
mWorkSource.set(ws);
|
|
}
|
|
}
|
|
if (changed && mHeld) {
|
|
try {
|
|
mService.updateWifiLockWorkSource(mBinder, mWorkSource);
|
|
} catch (RemoteException e) {
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
public String toString() {
|
|
String s1, s2, s3;
|
|
synchronized (mBinder) {
|
|
s1 = Integer.toHexString(System.identityHashCode(this));
|
|
s2 = mHeld ? "held; " : "";
|
|
if (mRefCounted) {
|
|
s3 = "refcounted: refcount = " + mRefCount;
|
|
} else {
|
|
s3 = "not refcounted";
|
|
}
|
|
return "WifiLock{ " + s1 + "; " + s2 + s3 + " }";
|
|
}
|
|
}
|
|
|
|
@Override
|
|
protected void finalize() throws Throwable {
|
|
super.finalize();
|
|
synchronized (mBinder) {
|
|
if (mHeld) {
|
|
try {
|
|
mService.releaseWifiLock(mBinder);
|
|
synchronized (WifiManager.this) {
|
|
mActiveLockCount--;
|
|
}
|
|
} catch (RemoteException ignore) {
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Creates a new WifiLock.
|
|
*
|
|
* @param lockType the type of lock to create. See {@link #WIFI_MODE_FULL},
|
|
* {@link #WIFI_MODE_FULL_HIGH_PERF} and {@link #WIFI_MODE_SCAN_ONLY} for
|
|
* descriptions of the types of Wi-Fi locks.
|
|
* @param tag a tag for the WifiLock to identify it in debugging messages. This string is
|
|
* never shown to the user under normal conditions, but should be descriptive
|
|
* enough to identify your application and the specific WifiLock within it, if it
|
|
* holds multiple WifiLocks.
|
|
*
|
|
* @return a new, unacquired WifiLock with the given tag.
|
|
*
|
|
* @see WifiLock
|
|
*/
|
|
public WifiLock createWifiLock(int lockType, String tag) {
|
|
return new WifiLock(lockType, tag);
|
|
}
|
|
|
|
/**
|
|
* Creates a new WifiLock.
|
|
*
|
|
* @param tag a tag for the WifiLock to identify it in debugging messages. This string is
|
|
* never shown to the user under normal conditions, but should be descriptive
|
|
* enough to identify your application and the specific WifiLock within it, if it
|
|
* holds multiple WifiLocks.
|
|
*
|
|
* @return a new, unacquired WifiLock with the given tag.
|
|
*
|
|
* @see WifiLock
|
|
*/
|
|
public WifiLock createWifiLock(String tag) {
|
|
return new WifiLock(WIFI_MODE_FULL, tag);
|
|
}
|
|
|
|
|
|
/**
|
|
* Create a new MulticastLock
|
|
*
|
|
* @param tag a tag for the MulticastLock to identify it in debugging
|
|
* messages. This string is never shown to the user under
|
|
* normal conditions, but should be descriptive enough to
|
|
* identify your application and the specific MulticastLock
|
|
* within it, if it holds multiple MulticastLocks.
|
|
*
|
|
* @return a new, unacquired MulticastLock with the given tag.
|
|
*
|
|
* @see MulticastLock
|
|
*/
|
|
public MulticastLock createMulticastLock(String tag) {
|
|
return new MulticastLock(tag);
|
|
}
|
|
|
|
/**
|
|
* Allows an application to receive Wifi Multicast packets.
|
|
* Normally the Wifi stack filters out packets not explicitly
|
|
* addressed to this device. Acquring a MulticastLock will
|
|
* cause the stack to receive packets addressed to multicast
|
|
* addresses. Processing these extra packets can cause a noticable
|
|
* battery drain and should be disabled when not needed.
|
|
*/
|
|
public class MulticastLock {
|
|
private String mTag;
|
|
private final IBinder mBinder;
|
|
private int mRefCount;
|
|
private boolean mRefCounted;
|
|
private boolean mHeld;
|
|
|
|
private MulticastLock(String tag) {
|
|
mTag = tag;
|
|
mBinder = new Binder();
|
|
mRefCount = 0;
|
|
mRefCounted = true;
|
|
mHeld = false;
|
|
}
|
|
|
|
/**
|
|
* Locks Wifi Multicast on until {@link #release} is called.
|
|
*
|
|
* If this MulticastLock is reference-counted each call to
|
|
* {@code acquire} will increment the reference count, and the
|
|
* wifi interface will receive multicast packets as long as the
|
|
* reference count is above zero.
|
|
*
|
|
* If this MulticastLock is not reference-counted, the first call to
|
|
* {@code acquire} will turn on the multicast packets, but subsequent
|
|
* calls will be ignored. Only one call to {@link #release} will
|
|
* be required, regardless of the number of times that {@code acquire}
|
|
* is called.
|
|
*
|
|
* Note that other applications may also lock Wifi Multicast on.
|
|
* Only they can relinquish their lock.
|
|
*
|
|
* Also note that applications cannot leave Multicast locked on.
|
|
* When an app exits or crashes, any Multicast locks will be released.
|
|
*/
|
|
public void acquire() {
|
|
synchronized (mBinder) {
|
|
if (mRefCounted ? (++mRefCount == 1) : (!mHeld)) {
|
|
try {
|
|
mService.acquireMulticastLock(mBinder, mTag);
|
|
synchronized (WifiManager.this) {
|
|
if (mActiveLockCount >= MAX_ACTIVE_LOCKS) {
|
|
mService.releaseMulticastLock();
|
|
throw new UnsupportedOperationException(
|
|
"Exceeded maximum number of wifi locks");
|
|
}
|
|
mActiveLockCount++;
|
|
}
|
|
} catch (RemoteException ignore) {
|
|
}
|
|
mHeld = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Unlocks Wifi Multicast, restoring the filter of packets
|
|
* not addressed specifically to this device and saving power.
|
|
*
|
|
* If this MulticastLock is reference-counted, each call to
|
|
* {@code release} will decrement the reference count, and the
|
|
* multicast packets will only stop being received when the reference
|
|
* count reaches zero. If the reference count goes below zero (that
|
|
* is, if {@code release} is called a greater number of times than
|
|
* {@link #acquire}), an exception is thrown.
|
|
*
|
|
* If this MulticastLock is not reference-counted, the first call to
|
|
* {@code release} (after the radio was multicast locked using
|
|
* {@link #acquire}) will unlock the multicast, and subsequent calls
|
|
* will be ignored.
|
|
*
|
|
* Note that if any other Wifi Multicast Locks are still outstanding
|
|
* this {@code release} call will not have an immediate effect. Only
|
|
* when all applications have released all their Multicast Locks will
|
|
* the Multicast filter be turned back on.
|
|
*
|
|
* Also note that when an app exits or crashes all of its Multicast
|
|
* Locks will be automatically released.
|
|
*/
|
|
public void release() {
|
|
synchronized (mBinder) {
|
|
if (mRefCounted ? (--mRefCount == 0) : (mHeld)) {
|
|
try {
|
|
mService.releaseMulticastLock();
|
|
synchronized (WifiManager.this) {
|
|
mActiveLockCount--;
|
|
}
|
|
} catch (RemoteException ignore) {
|
|
}
|
|
mHeld = false;
|
|
}
|
|
if (mRefCount < 0) {
|
|
throw new RuntimeException("MulticastLock under-locked "
|
|
+ mTag);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Controls whether this is a reference-counted or non-reference-
|
|
* counted MulticastLock.
|
|
*
|
|
* Reference-counted MulticastLocks keep track of the number of calls
|
|
* to {@link #acquire} and {@link #release}, and only stop the
|
|
* reception of multicast packets when every call to {@link #acquire}
|
|
* has been balanced with a call to {@link #release}. Non-reference-
|
|
* counted MulticastLocks allow the reception of multicast packets
|
|
* whenever {@link #acquire} is called and stop accepting multicast
|
|
* packets whenever {@link #release} is called.
|
|
*
|
|
* @param refCounted true if this MulticastLock should keep a reference
|
|
* count
|
|
*/
|
|
public void setReferenceCounted(boolean refCounted) {
|
|
mRefCounted = refCounted;
|
|
}
|
|
|
|
/**
|
|
* Checks whether this MulticastLock is currently held.
|
|
*
|
|
* @return true if this MulticastLock is held, false otherwise
|
|
*/
|
|
public boolean isHeld() {
|
|
synchronized (mBinder) {
|
|
return mHeld;
|
|
}
|
|
}
|
|
|
|
public String toString() {
|
|
String s1, s2, s3;
|
|
synchronized (mBinder) {
|
|
s1 = Integer.toHexString(System.identityHashCode(this));
|
|
s2 = mHeld ? "held; " : "";
|
|
if (mRefCounted) {
|
|
s3 = "refcounted: refcount = " + mRefCount;
|
|
} else {
|
|
s3 = "not refcounted";
|
|
}
|
|
return "MulticastLock{ " + s1 + "; " + s2 + s3 + " }";
|
|
}
|
|
}
|
|
|
|
@Override
|
|
protected void finalize() throws Throwable {
|
|
super.finalize();
|
|
setReferenceCounted(false);
|
|
release();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check multicast filter status.
|
|
*
|
|
* @return true if multicast packets are allowed.
|
|
*
|
|
* @hide pending API council approval
|
|
*/
|
|
public boolean isMulticastEnabled() {
|
|
try {
|
|
return mService.isMulticastEnabled();
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Initialize the multicast filtering to 'on'
|
|
* @hide no intent to publish
|
|
*/
|
|
public boolean initializeMulticastFiltering() {
|
|
try {
|
|
mService.initializeMulticastFiltering();
|
|
return true;
|
|
} catch (RemoteException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/** @hide */
|
|
public void captivePortalCheckComplete() {
|
|
try {
|
|
mService.captivePortalCheckComplete();
|
|
} catch (RemoteException e) {}
|
|
}
|
|
|
|
protected void finalize() throws Throwable {
|
|
try {
|
|
synchronized (sThreadRefLock) {
|
|
if (--sThreadRefCount == 0 && sHandlerThread != null) {
|
|
sHandlerThread.getLooper().quit();
|
|
}
|
|
}
|
|
} finally {
|
|
super.finalize();
|
|
}
|
|
}
|
|
}
|