android.net.wifi.WifiManager Maven / Gradle / Ivy
Show all versions of android-all Show documentation
/*
* 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.annotation.SystemApi;
import android.content.Context;
import android.net.DhcpInfo;
import android.net.wifi.ScanSettings;
import android.net.wifi.WifiChannel;
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.net.InetAddress;
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:
*
* - The list of configured networks. The list can be viewed and updated,
* and attributes of individual entries can be modified.
* - 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.
* - Results of access point scans, containing enough information to
* make decisions about what access point to connect to.
* - It defines the names of various Intent actions that are broadcast
* upon any sort of change in Wi-Fi state.
*
* 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 whether Wi-Fi scanning is allowed currently
* @hide
*/
public static final String WIFI_SCAN_AVAILABLE = "wifi_scan_available";
/**
* Extra int indicating scan availability, WIFI_STATE_ENABLED and WIFI_STATE_DISABLED
* @hide
*/
public static final String EXTRA_SCAN_AVAILABLE = "scan_enabled";
/**
* 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
*/
@SystemApi
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
*/
@SystemApi
public static final String EXTRA_WIFI_CONFIGURATION = "wifiConfiguration";
/**
* Multiple network configurations have changed.
* @see #CONFIGURED_NETWORKS_CHANGED_ACTION
*
* @hide
*/
@SystemApi
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
*/
@SystemApi
public static final String EXTRA_CHANGE_REASON = "changeReason";
/**
* The configuration is new and was added.
* @hide
*/
@SystemApi
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
*/
@SystemApi
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
*/
@SystemApi
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";
/**
* A batch of access point scans has been completed and the results areavailable.
* Call {@link #getBatchedScanResults()} to obtain the results.
* @hide pending review
*/
@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
public static final String BATCHED_SCAN_RESULTS_AVAILABLE_ACTION =
"android.net.wifi.BATCHED_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.NetworkCapabilities} object associated with the
* Wi-Fi network. Retrieve with
* {@link android.content.Intent#getParcelableExtra(String)}.
* @hide
*/
public static final String EXTRA_NETWORK_CAPABILITIES = "networkCapabilities";
/**
* 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: Show a system activity that allows the user to enable
* scans to be available even with Wi-Fi turned off.
*
* Notification of the result of this activity is posted using the
* {@link android.app.Activity#onActivityResult} callback. The
* resultCode
* will be {@link android.app.Activity#RESULT_OK} if scan always mode has
* been turned on or {@link android.app.Activity#RESULT_CANCELED} if the user
* has rejected the request or an error has occurred.
*/
@SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
public static final String ACTION_REQUEST_SCAN_ALWAYS_AVAILABLE =
"android.net.wifi.action.REQUEST_SCAN_ALWAYS_AVAILABLE";
/**
* Activity Action: Pick a Wi-Fi network to connect to.
*
Input: Nothing.
*
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.
*
* 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.
*
* 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;
/** @hide */
public static final boolean DEFAULT_POOR_NETWORK_AVOIDANCE_ENABLED = false;
/* 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 static int sListenerKey = 1;
private static final SparseArray sListenerMap = new SparseArray();
private static final Object sListenerMapLock = new Object();
private static AsyncChannel sAsyncChannel;
private static CountDownLatch sConnected;
private static final 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:
*
* - networkId
* - SSID
* - BSSID
* - priority
* - allowedProtocols
* - allowedKeyManagement
* - allowedAuthAlgorithms
* - allowedPairwiseCiphers
* - allowedGroupCiphers
*
* @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 getConfiguredNetworks() {
try {
return mService.getConfiguredNetworks();
} catch (RemoteException e) {
return null;
}
}
/** @hide */
@SystemApi
public List getPrivilegedConfiguredNetworks() {
try {
return mService.getPrivilegedConfiguredNetworks();
} catch (RemoteException e) {
return null;
}
}
/** @hide */
@SystemApi
public WifiConnectionStatistics getConnectionStatistics() {
try {
return mService.getConnectionStatistics();
} 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.
*
* 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-null. 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.
*
* 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
* disableOthers 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;
}
}
/**
* Get a list of available channels for customized scan.
*
* @see {@link WifiChannel}
*
* @return the channel list, or null if not available
* @hide
*/
public List getChannelList() {
try {
return mService.getChannelList();
} catch (RemoteException e) {
return null;
}
}
/* Keep this list in sync with wifi_hal.h */
/** @hide */
public static final int WIFI_FEATURE_INFRA = 0x0001; // Basic infrastructure mode
/** @hide */
public static final int WIFI_FEATURE_INFRA_5G = 0x0002; // Support for 5 GHz Band
/** @hide */
public static final int WIFI_FEATURE_PASSPOINT = 0x0004; // Support for GAS/ANQP
/** @hide */
public static final int WIFI_FEATURE_P2P = 0x0008; // Wifi-Direct
/** @hide */
public static final int WIFI_FEATURE_MOBILE_HOTSPOT = 0x0010; // Soft AP
/** @hide */
public static final int WIFI_FEATURE_SCANNER = 0x0020; // WifiScanner APIs
/** @hide */
public static final int WIFI_FEATURE_NAN = 0x0040; // Neighbor Awareness Networking
/** @hide */
public static final int WIFI_FEATURE_D2D_RTT = 0x0080; // Device-to-device RTT
/** @hide */
public static final int WIFI_FEATURE_D2AP_RTT = 0x0100; // Device-to-AP RTT
/** @hide */
public static final int WIFI_FEATURE_BATCH_SCAN = 0x0200; // Batched Scan (deprecated)
/** @hide */
public static final int WIFI_FEATURE_PNO = 0x0400; // Preferred network offload
/** @hide */
public static final int WIFI_FEATURE_ADDITIONAL_STA = 0x0800; // Support for two STAs
/** @hide */
public static final int WIFI_FEATURE_TDLS = 0x1000; // Tunnel directed link setup
/** @hide */
public static final int WIFI_FEATURE_TDLS_OFFCHANNEL = 0x2000; // Support for TDLS off channel
/** @hide */
public static final int WIFI_FEATURE_EPR = 0x4000; // Enhanced power reporting
private int getSupportedFeatures() {
try {
return mService.getSupportedFeatures();
} catch (RemoteException e) {
return 0;
}
}
private boolean isFeatureSupported(int feature) {
return (getSupportedFeatures() & feature) == feature;
}
/**
* @return true if this adapter supports 5 GHz band
*/
public boolean is5GHzBandSupported() {
return isFeatureSupported(WIFI_FEATURE_INFRA_5G);
}
/**
* @return true if this adapter supports passpoint
* @hide
*/
public boolean isPasspointSupported() {
return isFeatureSupported(WIFI_FEATURE_PASSPOINT);
}
/**
* @return true if this adapter supports WifiP2pManager (Wi-Fi Direct)
*/
public boolean isP2pSupported() {
return isFeatureSupported(WIFI_FEATURE_P2P);
}
/**
* @return true if this adapter supports portable Wi-Fi hotspot
* @hide
*/
@SystemApi
public boolean isPortableHotspotSupported() {
return isFeatureSupported(WIFI_FEATURE_MOBILE_HOTSPOT);
}
/**
* @return true if this adapter supports WifiScanner APIs
* @hide
*/
@SystemApi
public boolean isWifiScannerSupported() {
return isFeatureSupported(WIFI_FEATURE_SCANNER);
}
/**
* @return true if this adapter supports Neighbour Awareness Network APIs
* @hide
*/
public boolean isNanSupported() {
return isFeatureSupported(WIFI_FEATURE_NAN);
}
/**
* @return true if this adapter supports Device-to-device RTT
* @hide
*/
@SystemApi
public boolean isDeviceToDeviceRttSupported() {
return isFeatureSupported(WIFI_FEATURE_D2D_RTT);
}
/**
* @return true if this adapter supports Device-to-AP RTT
*/
@SystemApi
public boolean isDeviceToApRttSupported() {
return isFeatureSupported(WIFI_FEATURE_D2AP_RTT);
}
/**
* @return true if this adapter supports offloaded connectivity scan
*/
public boolean isPreferredNetworkOffloadSupported() {
return isFeatureSupported(WIFI_FEATURE_PNO);
}
/**
* @return true if this adapter supports multiple simultaneous connections
* @hide
*/
public boolean isAdditionalStaSupported() {
return isFeatureSupported(WIFI_FEATURE_ADDITIONAL_STA);
}
/**
* @return true if this adapter supports Tunnel Directed Link Setup
*/
public boolean isTdlsSupported() {
return isFeatureSupported(WIFI_FEATURE_TDLS);
}
/**
* @return true if this adapter supports Off Channel Tunnel Directed Link Setup
* @hide
*/
public boolean isOffChannelTdlsSupported() {
return isFeatureSupported(WIFI_FEATURE_TDLS_OFFCHANNEL);
}
/**
* @return true if this adapter supports advanced power/performance counters
*/
public boolean isEnhancedPowerReportingSupported() {
return isFeatureSupported(WIFI_FEATURE_EPR);
}
/**
* Return the record of {@link WifiActivityEnergyInfo} object that
* has the activity and energy info. This can be used to ascertain what
* the controller has been up to, since the last sample.
* @param updateType Type of info, cached vs refreshed.
*
* @return a record with {@link WifiActivityEnergyInfo} or null if
* report is unavailable or unsupported
* @hide
*/
public WifiActivityEnergyInfo getControllerActivityEnergyInfo(int updateType) {
if (mService == null) return null;
try {
WifiActivityEnergyInfo record;
if (!isEnhancedPowerReportingSupported()) {
return null;
}
synchronized(this) {
record = mService.reportActivityInfo();
if (record.isValid()) {
return record;
} else {
return null;
}
}
} catch (RemoteException e) {
Log.e(TAG, "getControllerActivityEnergyInfo: " + e);
}
return null;
}
/**
* 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(null, null);
return true;
} catch (RemoteException e) {
return false;
}
}
/** @hide */
@SystemApi
public boolean startScan(WorkSource workSource) {
try {
mService.startScan(null, workSource);
return true;
} catch (RemoteException e) {
return false;
}
}
/**
* Request a scan for access points in specified channel list. Each channel is specified by its
* frequency in MHz, e.g. "5500" (do NOT include "DFS" even though it is). The availability of
* the results is made known later in the same way as {@link #startScan}.
*
* Note:
*
* 1. Customized scan is for non-connection purposes, i.e. it won't trigger a wifi connection
* even though it finds some known networks.
*
* 2. Customized scan result may include access points that is not specified in the channel
* list. An app will need to do frequency filtering if it wants to get pure results for the
* channel list it specified.
*
* @hide
*/
public boolean startCustomizedScan(ScanSettings requested) {
try {
mService.startScan(requested, null);
return true;
} catch (RemoteException e) {
return false;
}
}
/** @hide */
public boolean startCustomizedScan(ScanSettings requested, WorkSource workSource) {
try {
mService.startScan(requested, workSource);
return true;
} catch (RemoteException e) {
return false;
}
}
/**
* Request a batched scan for access points. To end your requested batched scan,
* call stopBatchedScan with the same Settings.
*
* If there are mulitple requests for batched scans, the more demanding settings will
* take precidence.
*
* @param requested {@link BatchedScanSettings} the scan settings requested.
* @return false on known error
* @hide
*/
public boolean requestBatchedScan(BatchedScanSettings requested) {
try {
return mService.requestBatchedScan(requested, new Binder(), null);
} catch (RemoteException e) { return false; }
}
/** @hide */
public boolean requestBatchedScan(BatchedScanSettings requested, WorkSource workSource) {
try {
return mService.requestBatchedScan(requested, new Binder(), workSource);
} catch (RemoteException e) { return false; }
}
/**
* Check if the Batched Scan feature is supported.
*
* @return false if not supported.
* @hide
*/
@SystemApi
public boolean isBatchedScanSupported() {
try {
return mService.isBatchedScanSupported();
} catch (RemoteException e) { return false; }
}
/**
* End a requested batch scan for this applicaiton. Note that batched scan may
* still occur if other apps are using them.
*
* @param requested {@link BatchedScanSettings} the scan settings you previously requested
* and now wish to stop. A value of null here will stop all scans requested by the
* calling App.
* @hide
*/
public void stopBatchedScan(BatchedScanSettings requested) {
try {
mService.stopBatchedScan(requested);
} catch (RemoteException e) {}
}
/**
* Retrieve the latest batched scan result. This should be called immediately after
* {@link BATCHED_SCAN_RESULTS_AVAILABLE_ACTION} is received.
* @hide
*/
@SystemApi
public List getBatchedScanResults() {
try {
return mService.getBatchedScanResults(mContext.getOpPackageName());
} catch (RemoteException e) {
return null;
}
}
/**
* Force a re-reading of batched scan results. This will attempt
* to read more information from the chip, but will do so at the expense
* of previous data. Rate limited to the current scan frequency.
*
* pollBatchedScan will always wait 1 period from the start of the batch
* before trying to read from the chip, so if your #scans/batch == 1 this will
* have no effect.
*
* If you had already waited 1 period before calling, this should have
* immediate (though async) effect.
*
* If you call before that 1 period is up this will set up a timer and fetch
* results when the 1 period is up.
*
* Servicing a pollBatchedScan request (immediate or after timed delay) starts a
* new batch, so if you were doing 10 scans/batch and called in the 4th scan, you
* would get data in the 4th and then again 10 scans later.
* @hide
*/
public void pollBatchedScan() {
try {
mService.pollBatchedScan();
} catch (RemoteException e) { }
}
/**
* Creates a configuration token describing the network referenced by {@code netId}
* of MIME type application/vnd.wfa.wsc. Can be used to configure WiFi networks via NFC.
*
* @return hex-string encoded configuration token
* @hide
*/
public String getWpsNfcConfigurationToken(int netId) {
try {
return mService.getWpsNfcConfigurationToken(netId);
} catch (RemoteException e) {
return null;
}
}
/**
* 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 getScanResults() {
try {
return mService.getScanResults(mContext.getOpPackageName());
} catch (RemoteException e) {
return null;
}
}
/**
* Check if scanning is always available.
*
* If this return {@code true}, apps can issue {@link #startScan} and fetch scan results
* even when Wi-Fi is turned off.
*
* To change this setting, see {@link #ACTION_REQUEST_SCAN_ALWAYS_AVAILABLE}.
*/
public boolean isScanAlwaysAvailable() {
try {
return mService.isScanAlwaysAvailable();
} catch (RemoteException e) {
return false;
}
}
/**
* Tell the supplicant to persist the current list of configured networks.
*
* 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
*/
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();
sAsyncChannel.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;
}
}
/**
* Enable/Disable TDLS on a specific local route.
*
*
* TDLS enables two wireless endpoints to talk to each other directly
* without going through the access point that is managing the local
* network. It saves bandwidth and improves quality of the link.
*
*
* This API enables/disables the option of using TDLS. If enabled, the
* underlying hardware is free to use TDLS or a hop through the access
* point. If disabled, existing TDLS session is torn down and
* hardware is restricted to use access point for transferring wireless
* packets. Default value for all routes is 'disabled', meaning restricted
* to use access point for transferring packets.
*
*
* @param remoteIPAddress IP address of the endpoint to setup TDLS with
* @param enable true = setup and false = tear down TDLS
*/
public void setTdlsEnabled(InetAddress remoteIPAddress, boolean enable) {
try {
mService.enableTdls(remoteIPAddress.getHostAddress(), enable);
} catch (RemoteException e) {
// Just ignore the exception
}
}
/**
* Similar to {@link #setTdlsEnabled(InetAddress, boolean) }, except
* this version allows you to specify remote endpoint with a MAC address.
* @param remoteMacAddress MAC address of the remote endpoint such as 00:00:0c:9f:f2:ab
* @param enable true = setup and false = tear down TDLS
*/
public void setTdlsEnabledWithMacAddress(String remoteMacAddress, boolean enable) {
try {
mService.enableTdlsWithMacAddress(remoteMacAddress, enable);
} catch (RemoteException e) {
// Just ignore the exception
}
}
/* 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;
/**
* 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 */
public static final int WPS_OVERLAP_ERROR = 3;
/** WEP on WPS is prohibited */
public static final int WPS_WEP_PROHIBITED = 4;
/** TKIP only prohibited */
public static final int WPS_TKIP_ONLY_PROHIBITED = 5;
/** Authentication failure on WPS */
public static final int WPS_AUTH_FAILURE = 6;
/** WPS timed out */
public static final int WPS_TIMED_OUT = 7;
/**
* Passed with {@link ActionListener#onFailure}.
* Indicates that the operation failed due to invalid inputs
* @hide
*/
public static final int INVALID_ARGS = 8;
/**
* Passed with {@link ActionListener#onFailure}.
* Indicates that the operation failed due to user permissions.
* @hide
*/
public static final int NOT_AUTHORIZED = 9;
/**
* 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 */
public static abstract class WpsCallback {
/** WPS start succeeded */
public abstract void onStarted(String pin);
/** WPS operation completed succesfully */
public abstract void onSucceeded();
/**
* WPS operation failed
* @param reason The reason for failure could be one of
* {@link #WPS_TKIP_ONLY_PROHIBITED}, {@link #WPS_OVERLAP_ERROR},
* {@link #WPS_WEP_PROHIBITED}, {@link #WPS_TIMED_OUT} or {@link #WPS_AUTH_FAILURE}
* and some generic errors.
*/
public abstract void onFailed(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 static 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) {
sAsyncChannel.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
sAsyncChannel = null;
}
sConnected.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
sAsyncChannel = null;
getLooper().quit();
break;
/* ActionListeners grouped together */
case WifiManager.CONNECT_NETWORK_FAILED:
case WifiManager.FORGET_NETWORK_FAILED:
case WifiManager.SAVE_NETWORK_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.DISABLE_NETWORK_SUCCEEDED:
if (listener != null) {
((ActionListener) listener).onSuccess();
}
break;
case WifiManager.START_WPS_SUCCEEDED:
if (listener != null) {
WpsResult result = (WpsResult) message.obj;
((WpsCallback) listener).onStarted(result.pin);
//Listener needs to stay until completion or failure
synchronized(sListenerMapLock) {
sListenerMap.put(message.arg2, listener);
}
}
break;
case WifiManager.WPS_COMPLETED:
if (listener != null) {
((WpsCallback) listener).onSucceeded();
}
break;
case WifiManager.WPS_FAILED:
if (listener != null) {
((WpsCallback) listener).onFailed(message.arg1);
}
break;
case WifiManager.CANCEL_WPS_SUCCEDED:
if (listener != null) {
((WpsCallback) listener).onSucceeded();
}
break;
case WifiManager.CANCEL_WPS_FAILED:
if (listener != null) {
((WpsCallback) listener).onFailed(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 static int putListener(Object listener) {
if (listener == null) return INVALID_KEY;
int key;
synchronized (sListenerMapLock) {
do {
key = sListenerKey++;
} while (key == INVALID_KEY);
sListenerMap.put(key, listener);
}
return key;
}
private static Object removeListener(int key) {
if (key == INVALID_KEY) return null;
synchronized (sListenerMapLock) {
Object listener = sListenerMap.get(key);
sListenerMap.remove(key);
return listener;
}
}
private void init() {
synchronized (sThreadRefLock) {
if (++sThreadRefCount == 1) {
Messenger messenger = getWifiServiceMessenger();
if (messenger == null) {
sAsyncChannel = null;
return;
}
sHandlerThread = new HandlerThread("WifiManager");
sAsyncChannel = new AsyncChannel();
sConnected = new CountDownLatch(1);
sHandlerThread.start();
Handler handler = new ServiceHandler(sHandlerThread.getLooper());
sAsyncChannel.connect(mContext, handler, messenger);
try {
sConnected.await();
} catch (InterruptedException e) {
Log.e(TAG, "interrupted wait at init");
}
}
}
}
private void validateChannel() {
if (sAsyncChannel == 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
sAsyncChannel.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();
sAsyncChannel.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();
sAsyncChannel.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();
sAsyncChannel.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();
sAsyncChannel.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
*/
public void startWps(WpsInfo config, WpsCallback listener) {
if (config == null) throw new IllegalArgumentException("config cannot be null");
validateChannel();
sAsyncChannel.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
*/
public void cancelWps(WpsCallback listener) {
validateChannel();
sAsyncChannel.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;
}
}
/**
* 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.
*
* 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.
*
* 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.
*
* 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 {
ws.clearNames();
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;
}
}
protected void finalize() throws Throwable {
try {
synchronized (sThreadRefLock) {
if (--sThreadRefCount == 0 && sAsyncChannel != null) {
sAsyncChannel.disconnect();
}
}
} finally {
super.finalize();
}
}
/**
* Set wifi verbose log. Called from developer settings.
* @hide
*/
public void enableVerboseLogging (int verbose) {
try {
mService.enableVerboseLogging(verbose);
} catch (Exception e) {
//ignore any failure here
Log.e(TAG, "enableVerboseLogging " + e.toString());
}
}
/**
* Get the WiFi verbose logging level.This is used by settings
* to decide what to show within the picker.
* @hide
*/
public int getVerboseLoggingLevel() {
try {
return mService.getVerboseLoggingLevel();
} catch (RemoteException e) {
return 0;
}
}
/**
* Set wifi Aggressive Handover. Called from developer settings.
* @hide
*/
public void enableAggressiveHandover(int enabled) {
try {
mService.enableAggressiveHandover(enabled);
} catch (RemoteException e) {
}
}
/**
* Get the WiFi Handover aggressiveness.This is used by settings
* to decide what to show within the picker.
* @hide
*/
public int getAggressiveHandover() {
try {
return mService.getAggressiveHandover();
} catch (RemoteException e) {
return 0;
}
}
/**
* Set setting for allowing Scans when traffic is ongoing.
* @hide
*/
public void setAllowScansWithTraffic(int enabled) {
try {
mService.setAllowScansWithTraffic(enabled);
} catch (RemoteException e) {
}
}
/**
* Get setting for allowing Scans when traffic is ongoing.
* @hide
*/
public int getAllowScansWithTraffic() {
try {
return mService.getAllowScansWithTraffic();
} catch (RemoteException e) {
return 0;
}
}
}