| /* |
| * 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; |
| |
| import static com.android.internal.util.Preconditions.checkNotNull; |
| |
| import android.annotation.SdkConstant; |
| import android.annotation.SdkConstant.SdkConstantType; |
| import android.app.PendingIntent; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.net.NetworkUtils; |
| import android.os.Binder; |
| import android.os.Build.VERSION_CODES; |
| import android.os.Handler; |
| import android.os.HandlerThread; |
| import android.os.IBinder; |
| import android.os.INetworkActivityListener; |
| import android.os.INetworkManagementService; |
| import android.os.Looper; |
| import android.os.Message; |
| import android.os.Messenger; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.provider.Settings; |
| import android.telephony.TelephonyManager; |
| import android.util.ArrayMap; |
| import android.util.Log; |
| |
| import com.android.internal.telephony.ITelephony; |
| import com.android.internal.telephony.PhoneConstants; |
| import com.android.internal.util.Protocol; |
| |
| import java.net.InetAddress; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import java.util.HashMap; |
| |
| /** |
| * Class that answers queries about the state of network connectivity. It also |
| * notifies applications when network connectivity changes. Get an instance |
| * of this class by calling |
| * {@link android.content.Context#getSystemService(String) Context.getSystemService(Context.CONNECTIVITY_SERVICE)}. |
| * <p> |
| * The primary responsibilities of this class are to: |
| * <ol> |
| * <li>Monitor network connections (Wi-Fi, GPRS, UMTS, etc.)</li> |
| * <li>Send broadcast intents when network connectivity changes</li> |
| * <li>Attempt to "fail over" to another network when connectivity to a network |
| * is lost</li> |
| * <li>Provide an API that allows applications to query the coarse-grained or fine-grained |
| * state of the available networks</li> |
| * <li>Provide an API that allows applications to request and select networks for their data |
| * traffic</li> |
| * </ol> |
| */ |
| public class ConnectivityManager { |
| private static final String TAG = "ConnectivityManager"; |
| private static final boolean LEGACY_DBG = true; // STOPSHIP |
| |
| /** |
| * A change in network connectivity has occurred. A default connection has either |
| * been established or lost. The NetworkInfo for the affected network is |
| * sent as an extra; it should be consulted to see what kind of |
| * connectivity event occurred. |
| * <p/> |
| * If this is a connection that was the result of failing over from a |
| * disconnected network, then the FAILOVER_CONNECTION boolean extra is |
| * set to true. |
| * <p/> |
| * For a loss of connectivity, if the connectivity manager is attempting |
| * to connect (or has already connected) to another network, the |
| * NetworkInfo for the new network is also passed as an extra. This lets |
| * any receivers of the broadcast know that they should not necessarily |
| * tell the user that no data traffic will be possible. Instead, the |
| * receiver should expect another broadcast soon, indicating either that |
| * the failover attempt succeeded (and so there is still overall data |
| * connectivity), or that the failover attempt failed, meaning that all |
| * connectivity has been lost. |
| * <p/> |
| * For a disconnect event, the boolean extra EXTRA_NO_CONNECTIVITY |
| * is set to {@code true} if there are no connected networks at all. |
| */ |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| public static final String CONNECTIVITY_ACTION = "android.net.conn.CONNECTIVITY_CHANGE"; |
| |
| /** |
| * Identical to {@link #CONNECTIVITY_ACTION} broadcast, but sent without any |
| * applicable {@link Settings.Global#CONNECTIVITY_CHANGE_DELAY}. |
| * |
| * @hide |
| */ |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| public static final String CONNECTIVITY_ACTION_IMMEDIATE = |
| "android.net.conn.CONNECTIVITY_CHANGE_IMMEDIATE"; |
| |
| /** |
| * The lookup key for a {@link NetworkInfo} object. Retrieve with |
| * {@link android.content.Intent#getParcelableExtra(String)}. |
| * |
| * @deprecated Since {@link NetworkInfo} can vary based on UID, applications |
| * should always obtain network information through |
| * {@link #getActiveNetworkInfo()} or |
| * {@link #getAllNetworkInfo()}. |
| * @see #EXTRA_NETWORK_TYPE |
| */ |
| @Deprecated |
| public static final String EXTRA_NETWORK_INFO = "networkInfo"; |
| |
| /** |
| * Network type which triggered a {@link #CONNECTIVITY_ACTION} broadcast. |
| * Can be used with {@link #getNetworkInfo(int)} to get {@link NetworkInfo} |
| * state based on the calling application. |
| * |
| * @see android.content.Intent#getIntExtra(String, int) |
| */ |
| public static final String EXTRA_NETWORK_TYPE = "networkType"; |
| |
| /** |
| * The lookup key for a boolean that indicates whether a connect event |
| * is for a network to which the connectivity manager was failing over |
| * following a disconnect on another network. |
| * Retrieve it with {@link android.content.Intent#getBooleanExtra(String,boolean)}. |
| */ |
| public static final String EXTRA_IS_FAILOVER = "isFailover"; |
| /** |
| * The lookup key for a {@link NetworkInfo} object. This is supplied when |
| * there is another network that it may be possible to connect to. Retrieve with |
| * {@link android.content.Intent#getParcelableExtra(String)}. |
| */ |
| public static final String EXTRA_OTHER_NETWORK_INFO = "otherNetwork"; |
| /** |
| * The lookup key for a boolean that indicates whether there is a |
| * complete lack of connectivity, i.e., no network is available. |
| * Retrieve it with {@link android.content.Intent#getBooleanExtra(String,boolean)}. |
| */ |
| public static final String EXTRA_NO_CONNECTIVITY = "noConnectivity"; |
| /** |
| * The lookup key for a string that indicates why an attempt to connect |
| * to a network failed. The string has no particular structure. It is |
| * intended to be used in notifications presented to users. Retrieve |
| * it with {@link android.content.Intent#getStringExtra(String)}. |
| */ |
| public static final String EXTRA_REASON = "reason"; |
| /** |
| * The lookup key for a string that provides optionally supplied |
| * extra information about the network state. The information |
| * may be passed up from the lower networking layers, and its |
| * meaning may be specific to a particular network type. Retrieve |
| * it with {@link android.content.Intent#getStringExtra(String)}. |
| */ |
| public static final String EXTRA_EXTRA_INFO = "extraInfo"; |
| /** |
| * The lookup key for an int that provides information about |
| * our connection to the internet at large. 0 indicates no connection, |
| * 100 indicates a great connection. Retrieve it with |
| * {@link android.content.Intent#getIntExtra(String, int)}. |
| * {@hide} |
| */ |
| public static final String EXTRA_INET_CONDITION = "inetCondition"; |
| |
| /** |
| * Broadcast action to indicate the change of data activity status |
| * (idle or active) on a network in a recent period. |
| * The network becomes active when data transmission is started, or |
| * idle if there is no data transmission for a period of time. |
| * {@hide} |
| */ |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| public static final String ACTION_DATA_ACTIVITY_CHANGE = "android.net.conn.DATA_ACTIVITY_CHANGE"; |
| /** |
| * The lookup key for an enum that indicates the network device type on which this data activity |
| * change happens. |
| * {@hide} |
| */ |
| public static final String EXTRA_DEVICE_TYPE = "deviceType"; |
| /** |
| * The lookup key for a boolean that indicates the device is active or not. {@code true} means |
| * it is actively sending or receiving data and {@code false} means it is idle. |
| * {@hide} |
| */ |
| public static final String EXTRA_IS_ACTIVE = "isActive"; |
| /** |
| * The lookup key for a long that contains the timestamp (nanos) of the radio state change. |
| * {@hide} |
| */ |
| public static final String EXTRA_REALTIME_NS = "tsNanos"; |
| |
| /** |
| * Broadcast Action: The setting for background data usage has changed |
| * values. Use {@link #getBackgroundDataSetting()} to get the current value. |
| * <p> |
| * If an application uses the network in the background, it should listen |
| * for this broadcast and stop using the background data if the value is |
| * {@code false}. |
| * <p> |
| * |
| * @deprecated As of {@link VERSION_CODES#ICE_CREAM_SANDWICH}, availability |
| * of background data depends on several combined factors, and |
| * this broadcast is no longer sent. Instead, when background |
| * data is unavailable, {@link #getActiveNetworkInfo()} will now |
| * appear disconnected. During first boot after a platform |
| * upgrade, this broadcast will be sent once if |
| * {@link #getBackgroundDataSetting()} was {@code false} before |
| * the upgrade. |
| */ |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| @Deprecated |
| public static final String ACTION_BACKGROUND_DATA_SETTING_CHANGED = |
| "android.net.conn.BACKGROUND_DATA_SETTING_CHANGED"; |
| |
| /** |
| * Broadcast Action: The network connection may not be good |
| * uses {@code ConnectivityManager.EXTRA_INET_CONDITION} and |
| * {@code ConnectivityManager.EXTRA_NETWORK_INFO} to specify |
| * the network and it's condition. |
| * @hide |
| */ |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| public static final String INET_CONDITION_ACTION = |
| "android.net.conn.INET_CONDITION_ACTION"; |
| |
| /** |
| * Broadcast Action: A tetherable connection has come or gone. |
| * Uses {@code ConnectivityManager.EXTRA_AVAILABLE_TETHER}, |
| * {@code ConnectivityManager.EXTRA_ACTIVE_TETHER} and |
| * {@code ConnectivityManager.EXTRA_ERRORED_TETHER} to indicate |
| * the current state of tethering. Each include a list of |
| * interface names in that state (may be empty). |
| * @hide |
| */ |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| public static final String ACTION_TETHER_STATE_CHANGED = |
| "android.net.conn.TETHER_STATE_CHANGED"; |
| |
| /** |
| * @hide |
| * gives a String[] listing all the interfaces configured for |
| * tethering and currently available for tethering. |
| */ |
| public static final String EXTRA_AVAILABLE_TETHER = "availableArray"; |
| |
| /** |
| * @hide |
| * gives a String[] listing all the interfaces currently tethered |
| * (ie, has dhcp support and packets potentially forwarded/NATed) |
| */ |
| public static final String EXTRA_ACTIVE_TETHER = "activeArray"; |
| |
| /** |
| * @hide |
| * gives a String[] listing all the interfaces we tried to tether and |
| * failed. Use {@link #getLastTetherError} to find the error code |
| * for any interfaces listed here. |
| */ |
| public static final String EXTRA_ERRORED_TETHER = "erroredArray"; |
| |
| /** |
| * Broadcast Action: The captive portal tracker has finished its test. |
| * Sent only while running Setup Wizard, in lieu of showing a user |
| * notification. |
| * @hide |
| */ |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| public static final String ACTION_CAPTIVE_PORTAL_TEST_COMPLETED = |
| "android.net.conn.CAPTIVE_PORTAL_TEST_COMPLETED"; |
| /** |
| * The lookup key for a boolean that indicates whether a captive portal was detected. |
| * Retrieve it with {@link android.content.Intent#getBooleanExtra(String,boolean)}. |
| * @hide |
| */ |
| public static final String EXTRA_IS_CAPTIVE_PORTAL = "captivePortal"; |
| |
| /** |
| * Broadcast Action: A connection has been established to a new network |
| * but a captive portal has been detected preventing internet connectivity. |
| * This broadcast is sent out prior to providing the user with a |
| * notification allowing them to sign into the network, as such it should |
| * only be used by apps that can automatically and silently (without user |
| * interaction) log into specific captive portals. It should not be used |
| * by apps that prompt the user to sign in, as the user has not yet |
| * indicated they want to proceed with signing in. |
| * The new network is not the default network so it can only be accessed via |
| * the {@link Network} extra {@link #EXTRA_NETWORK}. |
| * This is an ordered broadcast and so it is perfectly acceptable for |
| * multiple receivers to in turn consider whether they are best suited to |
| * address the captive portal. |
| * A receiver should abort the broadcast if they are sure they are the |
| * appropriate handler of the captive portal. If the broadcast is aborted, |
| * the result code must be set to one of the following: |
| * <ul> |
| * <li>{@link #CAPTIVE_PORTAL_SIGNED_IN} The receiver has signed into the |
| * captive portal. After being verified to provide internet |
| * connectivity, this network will be made the default (assuming |
| * it is preferred over all other active networks). |
| * </li> |
| * <li>{@link #CAPTIVE_PORTAL_DISCONNECT} The receiver is familiar with |
| * this captive portal and knows sign-in is impossible or the user |
| * has indicated they do not want to pursue sign-in. No other apps |
| * will be given the option of signing in to the network. |
| * </li> |
| * </ul> |
| */ |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| public static final String ACTION_CAPTIVE_PORTAL_DETECTED = |
| "android.net.conn.CAPTIVE_PORTAL_DETECTED"; |
| |
| /** |
| * Broadcast Action: A connection has been established to a new network, |
| * a captive portal has been detected preventing internet connectivity, |
| * the user was notified, and elected to sign into the captive portal. |
| * It may be used by apps that prompt the user to sign in. |
| * The new network is not the default network so it can only be accessed via |
| * the {@link Network} extra {@link #EXTRA_NETWORK}. |
| * This is an ordered broadcast and so it is perfectly acceptable for |
| * multiple receivers to in turn consider whether they are best suited to |
| * address the captive portal. |
| * A receiver should abort the broadcast if they are sure they are the |
| * appropriate handler of the captive portal. If the broadcast is aborted, |
| * the result code must be set to one of the following: |
| * <ul> |
| * <li>{@link #CAPTIVE_PORTAL_SIGNED_IN} The receiver has signed into the |
| * captive portal. After being verified to provide internet |
| * connectivity, this network will be made the default (assuming |
| * it is preferred over all other active networks). |
| * </li> |
| * <li>{@link #CAPTIVE_PORTAL_DISCONNECT} The user has indicated they do |
| * not want to pursue sign-in. No other apps will be given the |
| * option of signing in to the network. |
| * </li> |
| * </ul> |
| */ |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| public static final String ACTION_CAPTIVE_PORTAL_SIGN_IN = |
| "android.net.conn.CAPTIVE_PORTAL_SIGN_IN"; |
| |
| /** |
| * The lookup key for a {@link Network} object passed along with a |
| * {@link #ACTION_CAPTIVE_PORTAL_DETECTED} or |
| * {@link #ACTION_CAPTIVE_PORTAL_SIGN_IN} intent. This network is not the |
| * default network and must be accessed using this {@link Network} object. |
| * Retrieve with {@link android.content.Intent#getParcelableExtra(String)}. |
| */ |
| public static final String EXTRA_NETWORK = "network"; |
| |
| /** |
| * Specified as a result code of a {@link #ACTION_CAPTIVE_PORTAL_DETECTED} or |
| * {@link #ACTION_CAPTIVE_PORTAL_SIGN_IN} receiver to indicate |
| * the receiver has signed into the |
| * captive portal. After being verified to provide internet |
| * connectivity, this network will be made the default (assuming |
| * it is preferred over all other active networks). |
| */ |
| public static final int CAPTIVE_PORTAL_SIGNED_IN = 1; |
| |
| /** |
| * Specified as a result code of a {@link #ACTION_CAPTIVE_PORTAL_DETECTED} or |
| * {@link #ACTION_CAPTIVE_PORTAL_SIGN_IN} receiver to indicate |
| * the receiver is familiar with |
| * this captive portal and knows sign-in is impossible or the user |
| * has indicated they do not want to pursue sign-in. No other apps will |
| * be given the option of signing in to the network. |
| */ |
| public static final int CAPTIVE_PORTAL_DISCONNECT = 2; |
| |
| /** |
| * The absence of a connection type. |
| * @hide |
| */ |
| public static final int TYPE_NONE = -1; |
| |
| /** |
| * The Mobile data connection. When active, all data traffic |
| * will use this network type's interface by default |
| * (it has a default route) |
| */ |
| public static final int TYPE_MOBILE = 0; |
| /** |
| * The WIFI data connection. When active, all data traffic |
| * will use this network type's interface by default |
| * (it has a default route). |
| */ |
| public static final int TYPE_WIFI = 1; |
| /** |
| * An MMS-specific Mobile data connection. This network type may use the |
| * same network interface as {@link #TYPE_MOBILE} or it may use a different |
| * one. This is used by applications needing to talk to the carrier's |
| * Multimedia Messaging Service servers. |
| */ |
| public static final int TYPE_MOBILE_MMS = 2; |
| /** |
| * A SUPL-specific Mobile data connection. This network type may use the |
| * same network interface as {@link #TYPE_MOBILE} or it may use a different |
| * one. This is used by applications needing to talk to the carrier's |
| * Secure User Plane Location servers for help locating the device. |
| */ |
| public static final int TYPE_MOBILE_SUPL = 3; |
| /** |
| * A DUN-specific Mobile data connection. This network type may use the |
| * same network interface as {@link #TYPE_MOBILE} or it may use a different |
| * one. This is sometimes by the system when setting up an upstream connection |
| * for tethering so that the carrier is aware of DUN traffic. |
| */ |
| public static final int TYPE_MOBILE_DUN = 4; |
| /** |
| * A High Priority Mobile data connection. This network type uses the |
| * same network interface as {@link #TYPE_MOBILE} but the routing setup |
| * is different. Only requesting processes will have access to the |
| * Mobile DNS servers and only IP's explicitly requested via {@link #requestRouteToHost} |
| * will route over this interface if no default route exists. |
| */ |
| public static final int TYPE_MOBILE_HIPRI = 5; |
| /** |
| * The WiMAX data connection. When active, all data traffic |
| * will use this network type's interface by default |
| * (it has a default route). |
| */ |
| public static final int TYPE_WIMAX = 6; |
| |
| /** |
| * The Bluetooth data connection. When active, all data traffic |
| * will use this network type's interface by default |
| * (it has a default route). |
| */ |
| public static final int TYPE_BLUETOOTH = 7; |
| |
| /** |
| * Dummy data connection. This should not be used on shipping devices. |
| */ |
| public static final int TYPE_DUMMY = 8; |
| |
| /** |
| * The Ethernet data connection. When active, all data traffic |
| * will use this network type's interface by default |
| * (it has a default route). |
| */ |
| public static final int TYPE_ETHERNET = 9; |
| |
| /** |
| * Over the air Administration. |
| * {@hide} |
| */ |
| public static final int TYPE_MOBILE_FOTA = 10; |
| |
| /** |
| * IP Multimedia Subsystem. |
| * {@hide} |
| */ |
| public static final int TYPE_MOBILE_IMS = 11; |
| |
| /** |
| * Carrier Branded Services. |
| * {@hide} |
| */ |
| public static final int TYPE_MOBILE_CBS = 12; |
| |
| /** |
| * A Wi-Fi p2p connection. Only requesting processes will have access to |
| * the peers connected. |
| * {@hide} |
| */ |
| public static final int TYPE_WIFI_P2P = 13; |
| |
| /** |
| * The network to use for initially attaching to the network |
| * {@hide} |
| */ |
| public static final int TYPE_MOBILE_IA = 14; |
| |
| /** |
| * Emergency PDN connection for emergency calls |
| * {@hide} |
| */ |
| public static final int TYPE_MOBILE_EMERGENCY = 15; |
| |
| /** |
| * The network that uses proxy to achieve connectivity. |
| * {@hide} |
| */ |
| public static final int TYPE_PROXY = 16; |
| |
| /** |
| * A virtual network using one or more native bearers. |
| * It may or may not be providing security services. |
| */ |
| public static final int TYPE_VPN = 17; |
| |
| /** {@hide} */ |
| public static final int MAX_RADIO_TYPE = TYPE_VPN; |
| |
| /** {@hide} */ |
| public static final int MAX_NETWORK_TYPE = TYPE_VPN; |
| |
| /** |
| * If you want to set the default network preference,you can directly |
| * change the networkAttributes array in framework's config.xml. |
| * |
| * @deprecated Since we support so many more networks now, the single |
| * network default network preference can't really express |
| * the hierarchy. Instead, the default is defined by the |
| * networkAttributes in config.xml. You can determine |
| * the current value by calling {@link #getNetworkPreference()} |
| * from an App. |
| */ |
| @Deprecated |
| public static final int DEFAULT_NETWORK_PREFERENCE = TYPE_WIFI; |
| |
| /** |
| * Default value for {@link Settings.Global#CONNECTIVITY_CHANGE_DELAY} in |
| * milliseconds. This was introduced because IPv6 routes seem to take a |
| * moment to settle - trying network activity before the routes are adjusted |
| * can lead to packets using the wrong interface or having the wrong IP address. |
| * This delay is a bit crude, but in the future hopefully we will have kernel |
| * notifications letting us know when it's safe to use the new network. |
| * |
| * @hide |
| */ |
| public static final int CONNECTIVITY_CHANGE_DELAY_DEFAULT = 3000; |
| |
| /** |
| * @hide |
| */ |
| public final static int REQUEST_ID_UNSET = 0; |
| |
| /** |
| * A NetID indicating no Network is selected. |
| * Keep in sync with bionic/libc/dns/include/resolv_netid.h |
| * @hide |
| */ |
| public static final int NETID_UNSET = 0; |
| |
| private final IConnectivityManager mService; |
| |
| private INetworkManagementService mNMService; |
| |
| /** |
| * Tests if a given integer represents a valid network type. |
| * @param networkType the type to be tested |
| * @return a boolean. {@code true} if the type is valid, else {@code false} |
| */ |
| public static boolean isNetworkTypeValid(int networkType) { |
| return networkType >= 0 && networkType <= MAX_NETWORK_TYPE; |
| } |
| |
| /** |
| * Returns a non-localized string representing a given network type. |
| * ONLY used for debugging output. |
| * @param type the type needing naming |
| * @return a String for the given type, or a string version of the type ("87") |
| * if no name is known. |
| * {@hide} |
| */ |
| public static String getNetworkTypeName(int type) { |
| switch (type) { |
| case TYPE_MOBILE: |
| return "MOBILE"; |
| case TYPE_WIFI: |
| return "WIFI"; |
| case TYPE_MOBILE_MMS: |
| return "MOBILE_MMS"; |
| case TYPE_MOBILE_SUPL: |
| return "MOBILE_SUPL"; |
| case TYPE_MOBILE_DUN: |
| return "MOBILE_DUN"; |
| case TYPE_MOBILE_HIPRI: |
| return "MOBILE_HIPRI"; |
| case TYPE_WIMAX: |
| return "WIMAX"; |
| case TYPE_BLUETOOTH: |
| return "BLUETOOTH"; |
| case TYPE_DUMMY: |
| return "DUMMY"; |
| case TYPE_ETHERNET: |
| return "ETHERNET"; |
| case TYPE_MOBILE_FOTA: |
| return "MOBILE_FOTA"; |
| case TYPE_MOBILE_IMS: |
| return "MOBILE_IMS"; |
| case TYPE_MOBILE_CBS: |
| return "MOBILE_CBS"; |
| case TYPE_WIFI_P2P: |
| return "WIFI_P2P"; |
| case TYPE_MOBILE_IA: |
| return "MOBILE_IA"; |
| case TYPE_MOBILE_EMERGENCY: |
| return "MOBILE_EMERGENCY"; |
| case TYPE_PROXY: |
| return "PROXY"; |
| default: |
| return Integer.toString(type); |
| } |
| } |
| |
| /** |
| * Checks if a given type uses the cellular data connection. |
| * This should be replaced in the future by a network property. |
| * @param networkType the type to check |
| * @return a boolean - {@code true} if uses cellular network, else {@code false} |
| * {@hide} |
| */ |
| public static boolean isNetworkTypeMobile(int networkType) { |
| switch (networkType) { |
| case TYPE_MOBILE: |
| case TYPE_MOBILE_MMS: |
| case TYPE_MOBILE_SUPL: |
| case TYPE_MOBILE_DUN: |
| case TYPE_MOBILE_HIPRI: |
| case TYPE_MOBILE_FOTA: |
| case TYPE_MOBILE_IMS: |
| case TYPE_MOBILE_CBS: |
| case TYPE_MOBILE_IA: |
| case TYPE_MOBILE_EMERGENCY: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| /** |
| * Checks if the given network type is backed by a Wi-Fi radio. |
| * |
| * @hide |
| */ |
| public static boolean isNetworkTypeWifi(int networkType) { |
| switch (networkType) { |
| case TYPE_WIFI: |
| case TYPE_WIFI_P2P: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| /** |
| * Specifies the preferred network type. When the device has more |
| * than one type available the preferred network type will be used. |
| * |
| * @param preference the network type to prefer over all others. It is |
| * unspecified what happens to the old preferred network in the |
| * overall ordering. |
| * @deprecated Functionality has been removed as it no longer makes sense, |
| * with many more than two networks - we'd need an array to express |
| * preference. Instead we use dynamic network properties of |
| * the networks to describe their precedence. |
| */ |
| public void setNetworkPreference(int preference) { |
| } |
| |
| /** |
| * Retrieves the current preferred network type. |
| * |
| * @return an integer representing the preferred network type |
| * |
| * <p>This method requires the caller to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| * @deprecated Functionality has been removed as it no longer makes sense, |
| * with many more than two networks - we'd need an array to express |
| * preference. Instead we use dynamic network properties of |
| * the networks to describe their precedence. |
| */ |
| public int getNetworkPreference() { |
| return TYPE_NONE; |
| } |
| |
| /** |
| * Returns details about the currently active default data network. When |
| * connected, this network is the default route for outgoing connections. |
| * You should always check {@link NetworkInfo#isConnected()} before initiating |
| * network traffic. This may return {@code null} when there is no default |
| * network. |
| * |
| * @return a {@link NetworkInfo} object for the current default network |
| * or {@code null} if no network default network is currently active |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| */ |
| public NetworkInfo getActiveNetworkInfo() { |
| try { |
| return mService.getActiveNetworkInfo(); |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * Returns details about the currently active default data network |
| * for a given uid. This is for internal use only to avoid spying |
| * other apps. |
| * |
| * @return a {@link NetworkInfo} object for the current default network |
| * for the given uid or {@code null} if no default network is |
| * available for the specified uid. |
| * |
| * <p>This method requires the caller to hold the permission |
| * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL} |
| * {@hide} |
| */ |
| public NetworkInfo getActiveNetworkInfoForUid(int uid) { |
| try { |
| return mService.getActiveNetworkInfoForUid(uid); |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * Returns connection status information about a particular |
| * network type. |
| * |
| * @param networkType integer specifying which networkType in |
| * which you're interested. |
| * @return a {@link NetworkInfo} object for the requested |
| * network type or {@code null} if the type is not |
| * supported by the device. |
| * |
| * <p>This method requires the caller to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| */ |
| public NetworkInfo getNetworkInfo(int networkType) { |
| try { |
| return mService.getNetworkInfo(networkType); |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * Returns connection status information about a particular |
| * Network. |
| * |
| * @param network {@link Network} specifying which network |
| * in which you're interested. |
| * @return a {@link NetworkInfo} object for the requested |
| * network or {@code null} if the {@code Network} |
| * is not valid. |
| * |
| * <p>This method requires the caller to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| */ |
| public NetworkInfo getNetworkInfo(Network network) { |
| try { |
| return mService.getNetworkInfoForNetwork(network); |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * Returns connection status information about all network |
| * types supported by the device. |
| * |
| * @return an array of {@link NetworkInfo} objects. Check each |
| * {@link NetworkInfo#getType} for which type each applies. |
| * |
| * <p>This method requires the caller to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| */ |
| public NetworkInfo[] getAllNetworkInfo() { |
| try { |
| return mService.getAllNetworkInfo(); |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * Returns an array of all {@link Network} currently tracked by the |
| * framework. |
| * |
| * @return an array of {@link Network} objects. |
| * |
| * <p>This method requires the caller to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| */ |
| public Network[] getAllNetworks() { |
| try { |
| return mService.getAllNetworks(); |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * Returns details about the Provisioning or currently active default data network. When |
| * connected, this network is the default route for outgoing connections. |
| * You should always check {@link NetworkInfo#isConnected()} before initiating |
| * network traffic. This may return {@code null} when there is no default |
| * network. |
| * |
| * @return a {@link NetworkInfo} object for the current default network |
| * or {@code null} if no network default network is currently active |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| * |
| * {@hide} |
| */ |
| public NetworkInfo getProvisioningOrActiveNetworkInfo() { |
| try { |
| return mService.getProvisioningOrActiveNetworkInfo(); |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * Returns the IP information for the current default network. |
| * |
| * @return a {@link LinkProperties} object describing the IP info |
| * for the current default network, or {@code null} if there |
| * is no current default network. |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| * {@hide} |
| */ |
| public LinkProperties getActiveLinkProperties() { |
| try { |
| return mService.getActiveLinkProperties(); |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * Returns the IP information for a given network type. |
| * |
| * @param networkType the network type of interest. |
| * @return a {@link LinkProperties} object describing the IP info |
| * for the given networkType, or {@code null} if there is |
| * no current default network. |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| * {@hide} |
| */ |
| public LinkProperties getLinkProperties(int networkType) { |
| try { |
| return mService.getLinkPropertiesForType(networkType); |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * Get the {@link LinkProperties} for the given {@link Network}. This |
| * will return {@code null} if the network is unknown. |
| * |
| * @param network The {@link Network} object identifying the network in question. |
| * @return The {@link LinkProperties} for the network, or {@code null}. |
| **/ |
| public LinkProperties getLinkProperties(Network network) { |
| try { |
| return mService.getLinkProperties(network); |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * Get the {@link NetworkCapabilities} for the given {@link Network}. This |
| * will return {@code null} if the network is unknown. |
| * |
| * @param network The {@link Network} object identifying the network in question. |
| * @return The {@link NetworkCapabilities} for the network, or {@code null}. |
| */ |
| public NetworkCapabilities getNetworkCapabilities(Network network) { |
| try { |
| return mService.getNetworkCapabilities(network); |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * Tells each network type to set its radio power state as directed. |
| * |
| * @param turnOn a boolean, {@code true} to turn the radios on, |
| * {@code false} to turn them off. |
| * @return a boolean, {@code true} indicating success. All network types |
| * will be tried, even if some fail. |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. |
| * {@hide} |
| */ |
| // TODO - check for any callers and remove |
| // public boolean setRadios(boolean turnOn) { |
| // try { |
| // return mService.setRadios(turnOn); |
| // } catch (RemoteException e) { |
| // return false; |
| // } |
| // } |
| |
| /** |
| * Tells a given networkType to set its radio power state as directed. |
| * |
| * @param networkType the int networkType of interest. |
| * @param turnOn a boolean, {@code true} to turn the radio on, |
| * {@code} false to turn it off. |
| * @return a boolean, {@code true} indicating success. |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. |
| * {@hide} |
| */ |
| // TODO - check for any callers and remove |
| // public boolean setRadio(int networkType, boolean turnOn) { |
| // try { |
| // return mService.setRadio(networkType, turnOn); |
| // } catch (RemoteException e) { |
| // return false; |
| // } |
| // } |
| |
| /** |
| * Tells the underlying networking system that the caller wants to |
| * begin using the named feature. The interpretation of {@code feature} |
| * is completely up to each networking implementation. |
| * <p>This method requires the caller to hold the permission |
| * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. |
| * @param networkType specifies which network the request pertains to |
| * @param feature the name of the feature to be used |
| * @return an integer value representing the outcome of the request. |
| * The interpretation of this value is specific to each networking |
| * implementation+feature combination, except that the value {@code -1} |
| * always indicates failure. |
| * |
| * @deprecated Deprecated in favor of the cleaner {@link #requestNetwork} api. |
| */ |
| public int startUsingNetworkFeature(int networkType, String feature) { |
| NetworkCapabilities netCap = networkCapabilitiesForFeature(networkType, feature); |
| if (netCap == null) { |
| Log.d(TAG, "Can't satisfy startUsingNetworkFeature for " + networkType + ", " + |
| feature); |
| return PhoneConstants.APN_REQUEST_FAILED; |
| } |
| |
| NetworkRequest request = null; |
| synchronized (sLegacyRequests) { |
| if (LEGACY_DBG) { |
| Log.d(TAG, "Looking for legacyRequest for netCap with hash: " + netCap + " (" + |
| netCap.hashCode() + ")"); |
| Log.d(TAG, "sLegacyRequests has:"); |
| for (NetworkCapabilities nc : sLegacyRequests.keySet()) { |
| Log.d(TAG, " " + nc + " (" + nc.hashCode() + ")"); |
| } |
| } |
| LegacyRequest l = sLegacyRequests.get(netCap); |
| if (l != null) { |
| Log.d(TAG, "renewing startUsingNetworkFeature request " + l.networkRequest); |
| renewRequestLocked(l); |
| if (l.currentNetwork != null) { |
| return PhoneConstants.APN_ALREADY_ACTIVE; |
| } else { |
| return PhoneConstants.APN_REQUEST_STARTED; |
| } |
| } |
| |
| request = requestNetworkForFeatureLocked(netCap); |
| } |
| if (request != null) { |
| Log.d(TAG, "starting startUsingNetworkFeature for request " + request); |
| return PhoneConstants.APN_REQUEST_STARTED; |
| } else { |
| Log.d(TAG, " request Failed"); |
| return PhoneConstants.APN_REQUEST_FAILED; |
| } |
| } |
| |
| /** |
| * Tells the underlying networking system that the caller is finished |
| * using the named feature. The interpretation of {@code feature} |
| * is completely up to each networking implementation. |
| * <p>This method requires the caller to hold the permission |
| * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. |
| * @param networkType specifies which network the request pertains to |
| * @param feature the name of the feature that is no longer needed |
| * @return an integer value representing the outcome of the request. |
| * The interpretation of this value is specific to each networking |
| * implementation+feature combination, except that the value {@code -1} |
| * always indicates failure. |
| * |
| * @deprecated Deprecated in favor of the cleaner {@link #requestNetwork} api. |
| */ |
| public int stopUsingNetworkFeature(int networkType, String feature) { |
| NetworkCapabilities netCap = networkCapabilitiesForFeature(networkType, feature); |
| if (netCap == null) { |
| Log.d(TAG, "Can't satisfy stopUsingNetworkFeature for " + networkType + ", " + |
| feature); |
| return -1; |
| } |
| |
| NetworkCallback networkCallback = removeRequestForFeature(netCap); |
| if (networkCallback != null) { |
| Log.d(TAG, "stopUsingNetworkFeature for " + networkType + ", " + feature); |
| unregisterNetworkCallback(networkCallback); |
| } |
| return 1; |
| } |
| |
| /** |
| * Removes the NET_CAPABILITY_NOT_RESTRICTED capability from the given |
| * NetworkCapabilities object if all the capabilities it provides are |
| * typically provided by restricted networks. |
| * |
| * TODO: consider: |
| * - Moving to NetworkCapabilities |
| * - Renaming it to guessRestrictedCapability and make it set the |
| * restricted capability bit in addition to clearing it. |
| * @hide |
| */ |
| public static void maybeMarkCapabilitiesRestricted(NetworkCapabilities nc) { |
| for (int capability : nc.getCapabilities()) { |
| switch (capability) { |
| case NetworkCapabilities.NET_CAPABILITY_CBS: |
| case NetworkCapabilities.NET_CAPABILITY_DUN: |
| case NetworkCapabilities.NET_CAPABILITY_EIMS: |
| case NetworkCapabilities.NET_CAPABILITY_FOTA: |
| case NetworkCapabilities.NET_CAPABILITY_IA: |
| case NetworkCapabilities.NET_CAPABILITY_IMS: |
| case NetworkCapabilities.NET_CAPABILITY_RCS: |
| case NetworkCapabilities.NET_CAPABILITY_XCAP: |
| case NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED: //there by default |
| continue; |
| default: |
| // At least one capability usually provided by unrestricted |
| // networks. Conclude that this network is unrestricted. |
| return; |
| } |
| } |
| // All the capabilities are typically provided by restricted networks. |
| // Conclude that this network is restricted. |
| nc.removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); |
| } |
| |
| private NetworkCapabilities networkCapabilitiesForFeature(int networkType, String feature) { |
| if (networkType == TYPE_MOBILE) { |
| int cap = -1; |
| if ("enableMMS".equals(feature)) { |
| cap = NetworkCapabilities.NET_CAPABILITY_MMS; |
| } else if ("enableSUPL".equals(feature)) { |
| cap = NetworkCapabilities.NET_CAPABILITY_SUPL; |
| } else if ("enableDUN".equals(feature) || "enableDUNAlways".equals(feature)) { |
| cap = NetworkCapabilities.NET_CAPABILITY_DUN; |
| } else if ("enableHIPRI".equals(feature)) { |
| cap = NetworkCapabilities.NET_CAPABILITY_INTERNET; |
| } else if ("enableFOTA".equals(feature)) { |
| cap = NetworkCapabilities.NET_CAPABILITY_FOTA; |
| } else if ("enableIMS".equals(feature)) { |
| cap = NetworkCapabilities.NET_CAPABILITY_IMS; |
| } else if ("enableCBS".equals(feature)) { |
| cap = NetworkCapabilities.NET_CAPABILITY_CBS; |
| } else { |
| return null; |
| } |
| NetworkCapabilities netCap = new NetworkCapabilities(); |
| netCap.addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR).addCapability(cap); |
| maybeMarkCapabilitiesRestricted(netCap); |
| return netCap; |
| } else if (networkType == TYPE_WIFI) { |
| if ("p2p".equals(feature)) { |
| NetworkCapabilities netCap = new NetworkCapabilities(); |
| netCap.addTransportType(NetworkCapabilities.TRANSPORT_WIFI); |
| netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_WIFI_P2P); |
| maybeMarkCapabilitiesRestricted(netCap); |
| return netCap; |
| } |
| } |
| return null; |
| } |
| |
| private int legacyTypeForNetworkCapabilities(NetworkCapabilities netCap) { |
| if (netCap == null) return TYPE_NONE; |
| if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_CBS)) { |
| return TYPE_MOBILE_CBS; |
| } |
| if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_IMS)) { |
| return TYPE_MOBILE_IMS; |
| } |
| if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_FOTA)) { |
| return TYPE_MOBILE_FOTA; |
| } |
| if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_DUN)) { |
| return TYPE_MOBILE_DUN; |
| } |
| if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_SUPL)) { |
| return TYPE_MOBILE_SUPL; |
| } |
| if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_MMS)) { |
| return TYPE_MOBILE_MMS; |
| } |
| if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)) { |
| return TYPE_MOBILE_HIPRI; |
| } |
| if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_WIFI_P2P)) { |
| return TYPE_WIFI_P2P; |
| } |
| return TYPE_NONE; |
| } |
| |
| private static class LegacyRequest { |
| NetworkCapabilities networkCapabilities; |
| NetworkRequest networkRequest; |
| int expireSequenceNumber; |
| Network currentNetwork; |
| int delay = -1; |
| NetworkCallback networkCallback = new NetworkCallback() { |
| @Override |
| public void onAvailable(Network network) { |
| currentNetwork = network; |
| Log.d(TAG, "startUsingNetworkFeature got Network:" + network); |
| setProcessDefaultNetworkForHostResolution(network); |
| } |
| @Override |
| public void onLost(Network network) { |
| if (network.equals(currentNetwork)) { |
| currentNetwork = null; |
| setProcessDefaultNetworkForHostResolution(null); |
| } |
| Log.d(TAG, "startUsingNetworkFeature lost Network:" + network); |
| } |
| }; |
| } |
| |
| private HashMap<NetworkCapabilities, LegacyRequest> sLegacyRequests = |
| new HashMap<NetworkCapabilities, LegacyRequest>(); |
| |
| private NetworkRequest findRequestForFeature(NetworkCapabilities netCap) { |
| synchronized (sLegacyRequests) { |
| LegacyRequest l = sLegacyRequests.get(netCap); |
| if (l != null) return l.networkRequest; |
| } |
| return null; |
| } |
| |
| private void renewRequestLocked(LegacyRequest l) { |
| l.expireSequenceNumber++; |
| Log.d(TAG, "renewing request to seqNum " + l.expireSequenceNumber); |
| sendExpireMsgForFeature(l.networkCapabilities, l.expireSequenceNumber, l.delay); |
| } |
| |
| private void expireRequest(NetworkCapabilities netCap, int sequenceNum) { |
| int ourSeqNum = -1; |
| synchronized (sLegacyRequests) { |
| LegacyRequest l = sLegacyRequests.get(netCap); |
| if (l == null) return; |
| ourSeqNum = l.expireSequenceNumber; |
| if (l.expireSequenceNumber == sequenceNum) { |
| unregisterNetworkCallback(l.networkCallback); |
| sLegacyRequests.remove(netCap); |
| } |
| } |
| Log.d(TAG, "expireRequest with " + ourSeqNum + ", " + sequenceNum); |
| } |
| |
| private NetworkRequest requestNetworkForFeatureLocked(NetworkCapabilities netCap) { |
| int delay = -1; |
| int type = legacyTypeForNetworkCapabilities(netCap); |
| try { |
| delay = mService.getRestoreDefaultNetworkDelay(type); |
| } catch (RemoteException e) {} |
| LegacyRequest l = new LegacyRequest(); |
| l.networkCapabilities = netCap; |
| l.delay = delay; |
| l.expireSequenceNumber = 0; |
| l.networkRequest = sendRequestForNetwork(netCap, l.networkCallback, 0, |
| REQUEST, type); |
| if (l.networkRequest == null) return null; |
| sLegacyRequests.put(netCap, l); |
| sendExpireMsgForFeature(netCap, l.expireSequenceNumber, delay); |
| return l.networkRequest; |
| } |
| |
| private void sendExpireMsgForFeature(NetworkCapabilities netCap, int seqNum, int delay) { |
| if (delay >= 0) { |
| Log.d(TAG, "sending expire msg with seqNum " + seqNum + " and delay " + delay); |
| Message msg = sCallbackHandler.obtainMessage(EXPIRE_LEGACY_REQUEST, seqNum, 0, netCap); |
| sCallbackHandler.sendMessageDelayed(msg, delay); |
| } |
| } |
| |
| private NetworkCallback removeRequestForFeature(NetworkCapabilities netCap) { |
| synchronized (sLegacyRequests) { |
| LegacyRequest l = sLegacyRequests.remove(netCap); |
| if (l == null) return null; |
| return l.networkCallback; |
| } |
| } |
| |
| /** |
| * Ensure that a network route exists to deliver traffic to the specified |
| * host via the specified network interface. An attempt to add a route that |
| * already exists is ignored, but treated as successful. |
| * <p>This method requires the caller to hold the permission |
| * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. |
| * @param networkType the type of the network over which traffic to the specified |
| * host is to be routed |
| * @param hostAddress the IP address of the host to which the route is desired |
| * @return {@code true} on success, {@code false} on failure |
| * |
| * @deprecated Deprecated in favor of the {@link #requestNetwork}, |
| * {@link #setProcessDefaultNetwork} and {@link Network#getSocketFactory} api. |
| */ |
| public boolean requestRouteToHost(int networkType, int hostAddress) { |
| return requestRouteToHostAddress(networkType, NetworkUtils.intToInetAddress(hostAddress)); |
| } |
| |
| /** |
| * Ensure that a network route exists to deliver traffic to the specified |
| * host via the specified network interface. An attempt to add a route that |
| * already exists is ignored, but treated as successful. |
| * <p>This method requires the caller to hold the permission |
| * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. |
| * @param networkType the type of the network over which traffic to the specified |
| * host is to be routed |
| * @param hostAddress the IP address of the host to which the route is desired |
| * @return {@code true} on success, {@code false} on failure |
| * @hide |
| * @deprecated Deprecated in favor of the {@link #requestNetwork} and |
| * {@link #setProcessDefaultNetwork} api. |
| */ |
| public boolean requestRouteToHostAddress(int networkType, InetAddress hostAddress) { |
| try { |
| return mService.requestRouteToHostAddress(networkType, hostAddress.getAddress()); |
| } catch (RemoteException e) { |
| return false; |
| } |
| } |
| |
| /** |
| * Returns the value of the setting for background data usage. If false, |
| * applications should not use the network if the application is not in the |
| * foreground. Developers should respect this setting, and check the value |
| * of this before performing any background data operations. |
| * <p> |
| * All applications that have background services that use the network |
| * should listen to {@link #ACTION_BACKGROUND_DATA_SETTING_CHANGED}. |
| * <p> |
| * @deprecated As of {@link VERSION_CODES#ICE_CREAM_SANDWICH}, availability of |
| * background data depends on several combined factors, and this method will |
| * always return {@code true}. Instead, when background data is unavailable, |
| * {@link #getActiveNetworkInfo()} will now appear disconnected. |
| * |
| * @return Whether background data usage is allowed. |
| */ |
| @Deprecated |
| public boolean getBackgroundDataSetting() { |
| // assume that background data is allowed; final authority is |
| // NetworkInfo which may be blocked. |
| return true; |
| } |
| |
| /** |
| * Sets the value of the setting for background data usage. |
| * |
| * @param allowBackgroundData Whether an application should use data while |
| * it is in the background. |
| * |
| * @attr ref android.Manifest.permission#CHANGE_BACKGROUND_DATA_SETTING |
| * @see #getBackgroundDataSetting() |
| * @hide |
| */ |
| @Deprecated |
| public void setBackgroundDataSetting(boolean allowBackgroundData) { |
| // ignored |
| } |
| |
| /** |
| * Return quota status for the current active network, or {@code null} if no |
| * network is active. Quota status can change rapidly, so these values |
| * shouldn't be cached. |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| * |
| * @hide |
| */ |
| public NetworkQuotaInfo getActiveNetworkQuotaInfo() { |
| try { |
| return mService.getActiveNetworkQuotaInfo(); |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * @hide |
| * @deprecated Talk to TelephonyManager directly |
| */ |
| public boolean getMobileDataEnabled() { |
| IBinder b = ServiceManager.getService(Context.TELEPHONY_SERVICE); |
| if (b != null) { |
| try { |
| ITelephony it = ITelephony.Stub.asInterface(b); |
| return it.getDataEnabled(); |
| } catch (RemoteException e) { } |
| } |
| return false; |
| } |
| |
| /** |
| * Callback for use with {@link ConnectivityManager#registerDefaultNetworkActiveListener} |
| * to find out when the system default network has gone in to a high power state. |
| */ |
| public interface OnNetworkActiveListener { |
| /** |
| * Called on the main thread of the process to report that the current data network |
| * has become active, and it is now a good time to perform any pending network |
| * operations. Note that this listener only tells you when the network becomes |
| * active; if at any other time you want to know whether it is active (and thus okay |
| * to initiate network traffic), you can retrieve its instantaneous state with |
| * {@link ConnectivityManager#isDefaultNetworkActive}. |
| */ |
| public void onNetworkActive(); |
| } |
| |
| private INetworkManagementService getNetworkManagementService() { |
| synchronized (this) { |
| if (mNMService != null) { |
| return mNMService; |
| } |
| IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE); |
| mNMService = INetworkManagementService.Stub.asInterface(b); |
| return mNMService; |
| } |
| } |
| |
| private final ArrayMap<OnNetworkActiveListener, INetworkActivityListener> |
| mNetworkActivityListeners |
| = new ArrayMap<OnNetworkActiveListener, INetworkActivityListener>(); |
| |
| /** |
| * Start listening to reports when the system's default data network is active, meaning it is |
| * a good time to perform network traffic. Use {@link #isDefaultNetworkActive()} |
| * to determine the current state of the system's default network after registering the |
| * listener. |
| * <p> |
| * If the process default network has been set with |
| * {@link ConnectivityManager#setProcessDefaultNetwork} this function will not |
| * reflect the process's default, but the system default. |
| * |
| * @param l The listener to be told when the network is active. |
| */ |
| public void registerDefaultNetworkActiveListener(final OnNetworkActiveListener l) { |
| INetworkActivityListener rl = new INetworkActivityListener.Stub() { |
| @Override |
| public void onNetworkActive() throws RemoteException { |
| l.onNetworkActive(); |
| } |
| }; |
| |
| try { |
| getNetworkManagementService().registerNetworkActivityListener(rl); |
| mNetworkActivityListeners.put(l, rl); |
| } catch (RemoteException e) { |
| } |
| } |
| |
| /** |
| * Remove network active listener previously registered with |
| * {@link #registerDefaultNetworkActiveListener}. |
| * |
| * @param l Previously registered listener. |
| */ |
| public void unregisterDefaultNetworkActiveListener(OnNetworkActiveListener l) { |
| INetworkActivityListener rl = mNetworkActivityListeners.get(l); |
| if (rl == null) { |
| throw new IllegalArgumentException("Listener not registered: " + l); |
| } |
| try { |
| getNetworkManagementService().unregisterNetworkActivityListener(rl); |
| } catch (RemoteException e) { |
| } |
| } |
| |
| /** |
| * Return whether the data network is currently active. An active network means that |
| * it is currently in a high power state for performing data transmission. On some |
| * types of networks, it may be expensive to move and stay in such a state, so it is |
| * more power efficient to batch network traffic together when the radio is already in |
| * this state. This method tells you whether right now is currently a good time to |
| * initiate network traffic, as the network is already active. |
| */ |
| public boolean isDefaultNetworkActive() { |
| try { |
| return getNetworkManagementService().isNetworkActive(); |
| } catch (RemoteException e) { |
| } |
| return false; |
| } |
| |
| /** |
| * {@hide} |
| */ |
| public ConnectivityManager(IConnectivityManager service) { |
| mService = checkNotNull(service, "missing IConnectivityManager"); |
| } |
| |
| /** {@hide} */ |
| public static ConnectivityManager from(Context context) { |
| return (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); |
| } |
| |
| /** |
| * Get the set of tetherable, available interfaces. This list is limited by |
| * device configuration and current interface existence. |
| * |
| * @return an array of 0 or more Strings of tetherable interface names. |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| * {@hide} |
| */ |
| public String[] getTetherableIfaces() { |
| try { |
| return mService.getTetherableIfaces(); |
| } catch (RemoteException e) { |
| return new String[0]; |
| } |
| } |
| |
| /** |
| * Get the set of tethered interfaces. |
| * |
| * @return an array of 0 or more String of currently tethered interface names. |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| * {@hide} |
| */ |
| public String[] getTetheredIfaces() { |
| try { |
| return mService.getTetheredIfaces(); |
| } catch (RemoteException e) { |
| return new String[0]; |
| } |
| } |
| |
| /** |
| * Get the set of interface names which attempted to tether but |
| * failed. Re-attempting to tether may cause them to reset to the Tethered |
| * state. Alternatively, causing the interface to be destroyed and recreated |
| * may cause them to reset to the available state. |
| * {@link ConnectivityManager#getLastTetherError} can be used to get more |
| * information on the cause of the errors. |
| * |
| * @return an array of 0 or more String indicating the interface names |
| * which failed to tether. |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| * {@hide} |
| */ |
| public String[] getTetheringErroredIfaces() { |
| try { |
| return mService.getTetheringErroredIfaces(); |
| } catch (RemoteException e) { |
| return new String[0]; |
| } |
| } |
| |
| /** |
| * Get the set of tethered dhcp ranges. |
| * |
| * @return an array of 0 or more {@code String} of tethered dhcp ranges. |
| * {@hide} |
| */ |
| public String[] getTetheredDhcpRanges() { |
| try { |
| return mService.getTetheredDhcpRanges(); |
| } catch (RemoteException e) { |
| return new String[0]; |
| } |
| } |
| |
| /** |
| * Attempt to tether the named interface. This will setup a dhcp server |
| * on the interface, forward and NAT IP packets and forward DNS requests |
| * to the best active upstream network interface. Note that if no upstream |
| * IP network interface is available, dhcp will still run and traffic will be |
| * allowed between the tethered devices and this device, though upstream net |
| * access will of course fail until an upstream network interface becomes |
| * active. |
| * |
| * @param iface the interface name to tether. |
| * @return error a {@code TETHER_ERROR} value indicating success or failure type |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. |
| * {@hide} |
| */ |
| public int tether(String iface) { |
| try { |
| return mService.tether(iface); |
| } catch (RemoteException e) { |
| return TETHER_ERROR_SERVICE_UNAVAIL; |
| } |
| } |
| |
| /** |
| * Stop tethering the named interface. |
| * |
| * @param iface the interface name to untether. |
| * @return error a {@code TETHER_ERROR} value indicating success or failure type |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. |
| * {@hide} |
| */ |
| public int untether(String iface) { |
| try { |
| return mService.untether(iface); |
| } catch (RemoteException e) { |
| return TETHER_ERROR_SERVICE_UNAVAIL; |
| } |
| } |
| |
| /** |
| * Check if the device allows for tethering. It may be disabled via |
| * {@code ro.tether.denied} system property, Settings.TETHER_SUPPORTED or |
| * due to device configuration. |
| * |
| * @return a boolean - {@code true} indicating Tethering is supported. |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| * {@hide} |
| */ |
| public boolean isTetheringSupported() { |
| try { |
| return mService.isTetheringSupported(); |
| } catch (RemoteException e) { |
| return false; |
| } |
| } |
| |
| /** |
| * Get the list of regular expressions that define any tetherable |
| * USB network interfaces. If USB tethering is not supported by the |
| * device, this list should be empty. |
| * |
| * @return an array of 0 or more regular expression Strings defining |
| * what interfaces are considered tetherable usb interfaces. |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| * {@hide} |
| */ |
| public String[] getTetherableUsbRegexs() { |
| try { |
| return mService.getTetherableUsbRegexs(); |
| } catch (RemoteException e) { |
| return new String[0]; |
| } |
| } |
| |
| /** |
| * Get the list of regular expressions that define any tetherable |
| * Wifi network interfaces. If Wifi tethering is not supported by the |
| * device, this list should be empty. |
| * |
| * @return an array of 0 or more regular expression Strings defining |
| * what interfaces are considered tetherable wifi interfaces. |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| * {@hide} |
| */ |
| public String[] getTetherableWifiRegexs() { |
| try { |
| return mService.getTetherableWifiRegexs(); |
| } catch (RemoteException e) { |
| return new String[0]; |
| } |
| } |
| |
| /** |
| * Get the list of regular expressions that define any tetherable |
| * Bluetooth network interfaces. If Bluetooth tethering is not supported by the |
| * device, this list should be empty. |
| * |
| * @return an array of 0 or more regular expression Strings defining |
| * what interfaces are considered tetherable bluetooth interfaces. |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| * {@hide} |
| */ |
| public String[] getTetherableBluetoothRegexs() { |
| try { |
| return mService.getTetherableBluetoothRegexs(); |
| } catch (RemoteException e) { |
| return new String[0]; |
| } |
| } |
| |
| /** |
| * Attempt to both alter the mode of USB and Tethering of USB. A |
| * utility method to deal with some of the complexity of USB - will |
| * attempt to switch to Rndis and subsequently tether the resulting |
| * interface on {@code true} or turn off tethering and switch off |
| * Rndis on {@code false}. |
| * |
| * @param enable a boolean - {@code true} to enable tethering |
| * @return error a {@code TETHER_ERROR} value indicating success or failure type |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. |
| * {@hide} |
| */ |
| public int setUsbTethering(boolean enable) { |
| try { |
| return mService.setUsbTethering(enable); |
| } catch (RemoteException e) { |
| return TETHER_ERROR_SERVICE_UNAVAIL; |
| } |
| } |
| |
| /** {@hide} */ |
| public static final int TETHER_ERROR_NO_ERROR = 0; |
| /** {@hide} */ |
| public static final int TETHER_ERROR_UNKNOWN_IFACE = 1; |
| /** {@hide} */ |
| public static final int TETHER_ERROR_SERVICE_UNAVAIL = 2; |
| /** {@hide} */ |
| public static final int TETHER_ERROR_UNSUPPORTED = 3; |
| /** {@hide} */ |
| public static final int TETHER_ERROR_UNAVAIL_IFACE = 4; |
| /** {@hide} */ |
| public static final int TETHER_ERROR_MASTER_ERROR = 5; |
| /** {@hide} */ |
| public static final int TETHER_ERROR_TETHER_IFACE_ERROR = 6; |
| /** {@hide} */ |
| public static final int TETHER_ERROR_UNTETHER_IFACE_ERROR = 7; |
| /** {@hide} */ |
| public static final int TETHER_ERROR_ENABLE_NAT_ERROR = 8; |
| /** {@hide} */ |
| public static final int TETHER_ERROR_DISABLE_NAT_ERROR = 9; |
| /** {@hide} */ |
| public static final int TETHER_ERROR_IFACE_CFG_ERROR = 10; |
| |
| /** |
| * Get a more detailed error code after a Tethering or Untethering |
| * request asynchronously failed. |
| * |
| * @param iface The name of the interface of interest |
| * @return error The error code of the last error tethering or untethering the named |
| * interface |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| * {@hide} |
| */ |
| public int getLastTetherError(String iface) { |
| try { |
| return mService.getLastTetherError(iface); |
| } catch (RemoteException e) { |
| return TETHER_ERROR_SERVICE_UNAVAIL; |
| } |
| } |
| |
| /** |
| * Report network connectivity status. This is currently used only |
| * to alter status bar UI. |
| * |
| * @param networkType The type of network you want to report on |
| * @param percentage The quality of the connection 0 is bad, 100 is good |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#STATUS_BAR}. |
| * {@hide} |
| */ |
| public void reportInetCondition(int networkType, int percentage) { |
| try { |
| mService.reportInetCondition(networkType, percentage); |
| } catch (RemoteException e) { |
| } |
| } |
| |
| /** |
| * Report a problem network to the framework. This provides a hint to the system |
| * that there might be connectivity problems on this network and may cause |
| * the framework to re-evaluate network connectivity and/or switch to another |
| * network. |
| * |
| * @param network The {@link Network} the application was attempting to use |
| * or {@code null} to indicate the current default network. |
| */ |
| public void reportBadNetwork(Network network) { |
| try { |
| mService.reportBadNetwork(network); |
| } catch (RemoteException e) { |
| } |
| } |
| |
| /** |
| * Set a network-independent global http proxy. This is not normally what you want |
| * for typical HTTP proxies - they are general network dependent. However if you're |
| * doing something unusual like general internal filtering this may be useful. On |
| * a private network where the proxy is not accessible, you may break HTTP using this. |
| * |
| * @param p The a {@link ProxyInfo} object defining the new global |
| * HTTP proxy. A {@code null} value will clear the global HTTP proxy. |
| * |
| * <p>This method requires the call to hold the permission |
| * android.Manifest.permission#CONNECTIVITY_INTERNAL. |
| * @hide |
| */ |
| public void setGlobalProxy(ProxyInfo p) { |
| try { |
| mService.setGlobalProxy(p); |
| } catch (RemoteException e) { |
| } |
| } |
| |
| /** |
| * Retrieve any network-independent global HTTP proxy. |
| * |
| * @return {@link ProxyInfo} for the current global HTTP proxy or {@code null} |
| * if no global HTTP proxy is set. |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| * @hide |
| */ |
| public ProxyInfo getGlobalProxy() { |
| try { |
| return mService.getGlobalProxy(); |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * Get the HTTP proxy settings for the current default network. Note that |
| * if a global proxy is set, it will override any per-network setting. |
| * |
| * @return the {@link ProxyInfo} for the current HTTP proxy, or {@code null} if no |
| * HTTP proxy is active. |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| * {@hide} |
| * @deprecated Deprecated in favor of {@link #getLinkProperties} |
| */ |
| public ProxyInfo getProxy() { |
| try { |
| return mService.getProxy(); |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * Sets a secondary requirement bit for the given networkType. |
| * This requirement bit is generally under the control of the carrier |
| * or its agents and is not directly controlled by the user. |
| * |
| * @param networkType The network who's dependence has changed |
| * @param met Boolean - true if network use is OK, false if not |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL}. |
| * {@hide} |
| */ |
| public void setDataDependency(int networkType, boolean met) { |
| try { |
| mService.setDataDependency(networkType, met); |
| } catch (RemoteException e) { |
| } |
| } |
| |
| /** |
| * Returns true if the hardware supports the given network type |
| * else it returns false. This doesn't indicate we have coverage |
| * or are authorized onto a network, just whether or not the |
| * hardware supports it. For example a GSM phone without a SIM |
| * should still return {@code true} for mobile data, but a wifi only |
| * tablet would return {@code false}. |
| * |
| * @param networkType The network type we'd like to check |
| * @return {@code true} if supported, else {@code false} |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| * @hide |
| */ |
| public boolean isNetworkSupported(int networkType) { |
| try { |
| return mService.isNetworkSupported(networkType); |
| } catch (RemoteException e) {} |
| return false; |
| } |
| |
| /** |
| * Returns if the currently active data network is metered. A network is |
| * classified as metered when the user is sensitive to heavy data usage on |
| * that connection due to monetary costs, data limitations or |
| * battery/performance issues. You should check this before doing large |
| * data transfers, and warn the user or delay the operation until another |
| * network is available. |
| * |
| * @return {@code true} if large transfers should be avoided, otherwise |
| * {@code false}. |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. |
| */ |
| public boolean isActiveNetworkMetered() { |
| try { |
| return mService.isActiveNetworkMetered(); |
| } catch (RemoteException e) { |
| return false; |
| } |
| } |
| |
| /** |
| * If the LockdownVpn mechanism is enabled, updates the vpn |
| * with a reload of its profile. |
| * |
| * @return a boolean with {@code} indicating success |
| * |
| * <p>This method can only be called by the system UID |
| * {@hide} |
| */ |
| public boolean updateLockdownVpn() { |
| try { |
| return mService.updateLockdownVpn(); |
| } catch (RemoteException e) { |
| return false; |
| } |
| } |
| |
| /** |
| * Signal that the captive portal check on the indicated network |
| * is complete and whether its a captive portal or not. |
| * |
| * @param info the {@link NetworkInfo} object for the networkType |
| * in question. |
| * @param isCaptivePortal true/false. |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL}. |
| * {@hide} |
| */ |
| public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { |
| try { |
| mService.captivePortalCheckCompleted(info, isCaptivePortal); |
| } catch (RemoteException e) { |
| } |
| } |
| |
| /** |
| * Supply the backend messenger for a network tracker |
| * |
| * @param networkType NetworkType to set |
| * @param messenger {@link Messenger} |
| * {@hide} |
| */ |
| public void supplyMessenger(int networkType, Messenger messenger) { |
| try { |
| mService.supplyMessenger(networkType, messenger); |
| } catch (RemoteException e) { |
| } |
| } |
| |
| /** |
| * Check mobile provisioning. |
| * |
| * @param suggestedTimeOutMs, timeout in milliseconds |
| * |
| * @return time out that will be used, maybe less that suggestedTimeOutMs |
| * -1 if an error. |
| * |
| * {@hide} |
| */ |
| public int checkMobileProvisioning(int suggestedTimeOutMs) { |
| int timeOutMs = -1; |
| try { |
| timeOutMs = mService.checkMobileProvisioning(suggestedTimeOutMs); |
| } catch (RemoteException e) { |
| } |
| return timeOutMs; |
| } |
| |
| /** |
| * Get the mobile provisioning url. |
| * {@hide} |
| */ |
| public String getMobileProvisioningUrl() { |
| try { |
| return mService.getMobileProvisioningUrl(); |
| } catch (RemoteException e) { |
| } |
| return null; |
| } |
| |
| /** |
| * Get the mobile redirected provisioning url. |
| * {@hide} |
| */ |
| public String getMobileRedirectedProvisioningUrl() { |
| try { |
| return mService.getMobileRedirectedProvisioningUrl(); |
| } catch (RemoteException e) { |
| } |
| return null; |
| } |
| |
| /** |
| * get the information about a specific network link |
| * @hide |
| */ |
| public LinkQualityInfo getLinkQualityInfo(int networkType) { |
| try { |
| LinkQualityInfo li = mService.getLinkQualityInfo(networkType); |
| return li; |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * get the information of currently active network link |
| * @hide |
| */ |
| public LinkQualityInfo getActiveLinkQualityInfo() { |
| try { |
| LinkQualityInfo li = mService.getActiveLinkQualityInfo(); |
| return li; |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * get the information of all network links |
| * @hide |
| */ |
| public LinkQualityInfo[] getAllLinkQualityInfo() { |
| try { |
| LinkQualityInfo[] li = mService.getAllLinkQualityInfo(); |
| return li; |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * Set sign in error notification to visible or in visible |
| * |
| * @param visible |
| * @param networkType |
| * |
| * {@hide} |
| */ |
| public void setProvisioningNotificationVisible(boolean visible, int networkType, |
| String extraInfo, String url) { |
| try { |
| mService.setProvisioningNotificationVisible(visible, networkType, extraInfo, url); |
| } catch (RemoteException e) { |
| } |
| } |
| |
| /** |
| * Set the value for enabling/disabling airplane mode |
| * |
| * @param enable whether to enable airplane mode or not |
| * |
| * <p>This method requires the call to hold the permission |
| * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL}. |
| * @hide |
| */ |
| public void setAirplaneMode(boolean enable) { |
| try { |
| mService.setAirplaneMode(enable); |
| } catch (RemoteException e) { |
| } |
| } |
| |
| /** {@hide} */ |
| public void registerNetworkFactory(Messenger messenger, String name) { |
| try { |
| mService.registerNetworkFactory(messenger, name); |
| } catch (RemoteException e) { } |
| } |
| |
| /** {@hide} */ |
| public void unregisterNetworkFactory(Messenger messenger) { |
| try { |
| mService.unregisterNetworkFactory(messenger); |
| } catch (RemoteException e) { } |
| } |
| |
| /** {@hide} */ |
| public void registerNetworkAgent(Messenger messenger, NetworkInfo ni, LinkProperties lp, |
| NetworkCapabilities nc, int score) { |
| try { |
| mService.registerNetworkAgent(messenger, ni, lp, nc, score); |
| } catch (RemoteException e) { } |
| } |
| |
| /** |
| * Base class for NetworkRequest callbacks. Used for notifications about network |
| * changes. Should be extended by applications wanting notifications. |
| */ |
| public static class NetworkCallback { |
| /** @hide */ |
| public static final int PRECHECK = 1; |
| /** @hide */ |
| public static final int AVAILABLE = 2; |
| /** @hide */ |
| public static final int LOSING = 3; |
| /** @hide */ |
| public static final int LOST = 4; |
| /** @hide */ |
| public static final int UNAVAIL = 5; |
| /** @hide */ |
| public static final int CAP_CHANGED = 6; |
| /** @hide */ |
| public static final int PROP_CHANGED = 7; |
| /** @hide */ |
| public static final int CANCELED = 8; |
| |
| /** |
| * @hide |
| * Called whenever the framework connects to a network that it may use to |
| * satisfy this request |
| */ |
| public void onPreCheck(Network network) {} |
| |
| /** |
| * Called when the framework connects and has declared new network ready for use. |
| * This callback may be called more than once if the {@link Network} that is |
| * satisfying the request changes. |
| * |
| * @param network The {@link Network} of the satisfying network. |
| */ |
| public void onAvailable(Network network) {} |
| |
| /** |
| * Called when the network is about to be disconnected. Often paired with an |
| * {@link NetworkCallback#onAvailable} call with the new replacement network |
| * for graceful handover. This may not be called if we have a hard loss |
| * (loss without warning). This may be followed by either a |
| * {@link NetworkCallback#onLost} call or a |
| * {@link NetworkCallback#onAvailable} call for this network depending |
| * on whether we lose or regain it. |
| * |
| * @param network The {@link Network} that is about to be disconnected. |
| * @param maxMsToLive The time in ms the framework will attempt to keep the |
| * network connected. Note that the network may suffer a |
| * hard loss at any time. |
| */ |
| public void onLosing(Network network, int maxMsToLive) {} |
| |
| /** |
| * Called when the framework has a hard loss of the network or when the |
| * graceful failure ends. |
| * |
| * @param network The {@link Network} lost. |
| */ |
| public void onLost(Network network) {} |
| |
| /** |
| * Called if no network is found in the given timeout time. If no timeout is given, |
| * this will not be called. |
| * @hide |
| */ |
| public void onUnavailable() {} |
| |
| /** |
| * Called when the network the framework connected to for this request |
| * changes capabilities but still satisfies the stated need. |
| * |
| * @param network The {@link Network} whose capabilities have changed. |
| * @param networkCapabilities The new {@link NetworkCapabilities} for this network. |
| */ |
| public void onCapabilitiesChanged(Network network, |
| NetworkCapabilities networkCapabilities) {} |
| |
| /** |
| * Called when the network the framework connected to for this request |
| * changes {@link LinkProperties}. |
| * |
| * @param network The {@link Network} whose link properties have changed. |
| * @param linkProperties The new {@link LinkProperties} for this network. |
| */ |
| public void onLinkPropertiesChanged(Network network, LinkProperties linkProperties) {} |
| |
| private NetworkRequest networkRequest; |
| } |
| |
| private static final int BASE = Protocol.BASE_CONNECTIVITY_MANAGER; |
| /** @hide obj = pair(NetworkRequest, Network) */ |
| public static final int CALLBACK_PRECHECK = BASE + 1; |
| /** @hide obj = pair(NetworkRequest, Network) */ |
| public static final int CALLBACK_AVAILABLE = BASE + 2; |
| /** @hide obj = pair(NetworkRequest, Network), arg1 = ttl */ |
| public static final int CALLBACK_LOSING = BASE + 3; |
| /** @hide obj = pair(NetworkRequest, Network) */ |
| public static final int CALLBACK_LOST = BASE + 4; |
| /** @hide obj = NetworkRequest */ |
| public static final int CALLBACK_UNAVAIL = BASE + 5; |
| /** @hide obj = pair(NetworkRequest, Network) */ |
| public static final int CALLBACK_CAP_CHANGED = BASE + 6; |
| /** @hide obj = pair(NetworkRequest, Network) */ |
| public static final int CALLBACK_IP_CHANGED = BASE + 7; |
| /** @hide obj = NetworkRequest */ |
| public static final int CALLBACK_RELEASED = BASE + 8; |
| /** @hide */ |
| public static final int CALLBACK_EXIT = BASE + 9; |
| /** @hide obj = NetworkCapabilities, arg1 = seq number */ |
| private static final int EXPIRE_LEGACY_REQUEST = BASE + 10; |
| |
| private class CallbackHandler extends Handler { |
| private final HashMap<NetworkRequest, NetworkCallback>mCallbackMap; |
| private final AtomicInteger mRefCount; |
| private static final String TAG = "ConnectivityManager.CallbackHandler"; |
| private final ConnectivityManager mCm; |
| |
| CallbackHandler(Looper looper, HashMap<NetworkRequest, NetworkCallback>callbackMap, |
| AtomicInteger refCount, ConnectivityManager cm) { |
| super(looper); |
| mCallbackMap = callbackMap; |
| mRefCount = refCount; |
| mCm = cm; |
| } |
| |
| @Override |
| public void handleMessage(Message message) { |
| Log.d(TAG, "CM callback handler got msg " + message.what); |
| switch (message.what) { |
| case CALLBACK_PRECHECK: { |
| NetworkRequest request = getNetworkRequest(message); |
| NetworkCallback callbacks = getCallbacks(request); |
| if (callbacks != null) { |
| callbacks.onPreCheck(getNetwork(message)); |
| } else { |
| Log.e(TAG, "callback not found for PRECHECK message"); |
| } |
| break; |
| } |
| case CALLBACK_AVAILABLE: { |
| NetworkRequest request = getNetworkRequest(message); |
| NetworkCallback callbacks = getCallbacks(request); |
| if (callbacks != null) { |
| callbacks.onAvailable(getNetwork(message)); |
| } else { |
| Log.e(TAG, "callback not found for AVAILABLE message"); |
| } |
| break; |
| } |
| case CALLBACK_LOSING: { |
| NetworkRequest request = getNetworkRequest(message); |
| NetworkCallback callbacks = getCallbacks(request); |
| if (callbacks != null) { |
| callbacks.onLosing(getNetwork(message), message.arg1); |
| } else { |
| Log.e(TAG, "callback not found for LOSING message"); |
| } |
| break; |
| } |
| case CALLBACK_LOST: { |
| NetworkRequest request = getNetworkRequest(message); |
| NetworkCallback callbacks = getCallbacks(request); |
| if (callbacks != null) { |
| callbacks.onLost(getNetwork(message)); |
| } else { |
| Log.e(TAG, "callback not found for LOST message"); |
| } |
| break; |
| } |
| case CALLBACK_UNAVAIL: { |
| NetworkRequest req = (NetworkRequest)message.obj; |
| NetworkCallback callbacks = null; |
| synchronized(mCallbackMap) { |
| callbacks = mCallbackMap.get(req); |
| } |
| if (callbacks != null) { |
| callbacks.onUnavailable(); |
| } else { |
| Log.e(TAG, "callback not found for UNAVAIL message"); |
| } |
| break; |
| } |
| case CALLBACK_CAP_CHANGED: { |
| NetworkRequest request = getNetworkRequest(message); |
| NetworkCallback callbacks = getCallbacks(request); |
| if (callbacks != null) { |
| Network network = getNetwork(message); |
| NetworkCapabilities cap = mCm.getNetworkCapabilities(network); |
| |
| callbacks.onCapabilitiesChanged(network, cap); |
| } else { |
| Log.e(TAG, "callback not found for CHANGED message"); |
| } |
| break; |
| } |
| case CALLBACK_IP_CHANGED: { |
| NetworkRequest request = getNetworkRequest(message); |
| NetworkCallback callbacks = getCallbacks(request); |
| if (callbacks != null) { |
| Network network = getNetwork(message); |
| LinkProperties lp = mCm.getLinkProperties(network); |
| |
| callbacks.onLinkPropertiesChanged(network, lp); |
| } else { |
| Log.e(TAG, "callback not found for CHANGED message"); |
| } |
| break; |
| } |
| case CALLBACK_RELEASED: { |
| NetworkRequest req = (NetworkRequest)message.obj; |
| NetworkCallback callbacks = null; |
| synchronized(mCallbackMap) { |
| callbacks = mCallbackMap.remove(req); |
| } |
| if (callbacks != null) { |
| synchronized(mRefCount) { |
| if (mRefCount.decrementAndGet() == 0) { |
| getLooper().quit(); |
| } |
| } |
| } else { |
| Log.e(TAG, "callback not found for CANCELED message"); |
| } |
| break; |
| } |
| case CALLBACK_EXIT: { |
| Log.d(TAG, "Listener quiting"); |
| getLooper().quit(); |
| break; |
| } |
| case EXPIRE_LEGACY_REQUEST: { |
| expireRequest((NetworkCapabilities)message.obj, message.arg1); |
| break; |
| } |
| } |
| } |
| |
| private NetworkRequest getNetworkRequest(Message msg) { |
| return (NetworkRequest)(msg.obj); |
| } |
| private NetworkCallback getCallbacks(NetworkRequest req) { |
| synchronized(mCallbackMap) { |
| return mCallbackMap.get(req); |
| } |
| } |
| private Network getNetwork(Message msg) { |
| return new Network(msg.arg2); |
| } |
| private NetworkCallback removeCallbacks(Message msg) { |
| NetworkRequest req = (NetworkRequest)msg.obj; |
| synchronized(mCallbackMap) { |
| return mCallbackMap.remove(req); |
| } |
| } |
| } |
| |
| private void incCallbackHandlerRefCount() { |
| synchronized(sCallbackRefCount) { |
| if (sCallbackRefCount.incrementAndGet() == 1) { |
| // TODO - switch this over to a ManagerThread or expire it when done |
| HandlerThread callbackThread = new HandlerThread("ConnectivityManager"); |
| callbackThread.start(); |
| sCallbackHandler = new CallbackHandler(callbackThread.getLooper(), |
| sNetworkCallback, sCallbackRefCount, this); |
| } |
| } |
| } |
| |
| private void decCallbackHandlerRefCount() { |
| synchronized(sCallbackRefCount) { |
| if (sCallbackRefCount.decrementAndGet() == 0) { |
| sCallbackHandler.obtainMessage(CALLBACK_EXIT).sendToTarget(); |
| sCallbackHandler = null; |
| } |
| } |
| } |
| |
| static final HashMap<NetworkRequest, NetworkCallback> sNetworkCallback = |
| new HashMap<NetworkRequest, NetworkCallback>(); |
| static final AtomicInteger sCallbackRefCount = new AtomicInteger(0); |
| static CallbackHandler sCallbackHandler = null; |
| |
| private final static int LISTEN = 1; |
| private final static int REQUEST = 2; |
| |
| private NetworkRequest sendRequestForNetwork(NetworkCapabilities need, |
| NetworkCallback networkCallback, int timeoutSec, int action, |
| int legacyType) { |
| if (networkCallback == null) { |
| throw new IllegalArgumentException("null NetworkCallback"); |
| } |
| if (need == null) throw new IllegalArgumentException("null NetworkCapabilities"); |
| try { |
| incCallbackHandlerRefCount(); |
| synchronized(sNetworkCallback) { |
| if (action == LISTEN) { |
| networkCallback.networkRequest = mService.listenForNetwork(need, |
| new Messenger(sCallbackHandler), new Binder()); |
| } else { |
| networkCallback.networkRequest = mService.requestNetwork(need, |
| new Messenger(sCallbackHandler), timeoutSec, new Binder(), legacyType); |
| } |
| if (networkCallback.networkRequest != null) { |
| sNetworkCallback.put(networkCallback.networkRequest, networkCallback); |
| } |
| } |
| } catch (RemoteException e) {} |
| if (networkCallback.networkRequest == null) decCallbackHandlerRefCount(); |
| return networkCallback.networkRequest; |
| } |
| |
| /** |
| * Request a network to satisfy a set of {@link NetworkCapabilities}. |
| * |
| * This {@link NetworkRequest} will live until released via |
| * {@link #unregisterNetworkCallback} or the calling application exits. |
| * Status of the request can be followed by listening to the various |
| * callbacks described in {@link NetworkCallback}. The {@link Network} |
| * can be used to direct traffic to the network. |
| * |
| * @param request {@link NetworkRequest} describing this request. |
| * @param networkCallback The {@link NetworkCallback} to be utilized for this |
| * request. Note the callback must not be shared - they |
| * uniquely specify this request. |
| */ |
| public void requestNetwork(NetworkRequest request, NetworkCallback networkCallback) { |
| sendRequestForNetwork(request.networkCapabilities, networkCallback, 0, |
| REQUEST, TYPE_NONE); |
| } |
| |
| /** |
| * Request a network to satisfy a set of {@link NetworkCapabilities}, limited |
| * by a timeout. |
| * |
| * This function behaves identically to the non-timedout version, but if a suitable |
| * network is not found within the given time (in milliseconds) the |
| * {@link NetworkCallback#unavailable} callback is called. The request must |
| * still be released normally by calling {@link releaseNetworkRequest}. |
| * @param request {@link NetworkRequest} describing this request. |
| * @param networkCallback The callbacks to be utilized for this request. Note |
| * the callbacks must not be shared - they uniquely specify |
| * this request. |
| * @param timeoutMs The time in milliseconds to attempt looking for a suitable network |
| * before {@link NetworkCallback#unavailable} is called. |
| * @hide |
| */ |
| public void requestNetwork(NetworkRequest request, NetworkCallback networkCallback, |
| int timeoutMs) { |
| sendRequestForNetwork(request.networkCapabilities, networkCallback, timeoutMs, |
| REQUEST, TYPE_NONE); |
| } |
| |
| /** |
| * The maximum number of milliseconds the framework will look for a suitable network |
| * during a timeout-equiped call to {@link requestNetwork}. |
| * {@hide} |
| */ |
| public final static int MAX_NETWORK_REQUEST_TIMEOUT_MS = 100 * 60 * 1000; |
| |
| /** |
| * The lookup key for a {@link Network} object included with the intent after |
| * succesfully finding a network for the applications request. Retrieve it with |
| * {@link android.content.Intent#getParcelableExtra(String)}. |
| * @hide |
| */ |
| public static final String EXTRA_NETWORK_REQUEST_NETWORK = "networkRequestNetwork"; |
| |
| /** |
| * The lookup key for a {@link NetworkRequest} object included with the intent after |
| * succesfully finding a network for the applications request. Retrieve it with |
| * {@link android.content.Intent#getParcelableExtra(String)}. |
| * @hide |
| */ |
| public static final String EXTRA_NETWORK_REQUEST_NETWORK_REQUEST = |
| "networkRequestNetworkRequest"; |
| |
| |
| /** |
| * Request a network to satisfy a set of {@link NetworkCapabilities}. |
| * |
| * This function behavies identically to the version that takes a NetworkCallback, but instead |
| * of {@link NetworkCallback} a {@link PendingIntent} is used. This means |
| * the request may outlive the calling application and get called back when a suitable |
| * network is found. |
| * <p> |
| * The operation is an Intent broadcast that goes to a broadcast receiver that |
| * you registered with {@link Context#registerReceiver} or through the |
| * <receiver> tag in an AndroidManifest.xml file |
| * <p> |
| * The operation Intent is delivered with two extras, a {@link Network} typed |
| * extra called {@link #EXTRA_NETWORK_REQUEST_NETWORK} and a {@link NetworkRequest} |
| * typed extra called {@link #EXTRA_NETWORK_REQUEST_NETWORK_REQUEST} containing |
| * the original requests parameters. It is important to create a new, |
| * {@link NetworkCallback} based request before completing the processing of the |
| * Intent to reserve the network or it will be released shortly after the Intent |
| * is processed. |
| * <p> |
| * If there is already an request for this Intent registered (with the equality of |
| * two Intents defined by {@link Intent#filterEquals}), then it will be removed and |
| * replaced by this one, effectively releasing the previous {@link NetworkRequest}. |
| * <p> |
| * The request may be released normally by calling {@link #unregisterNetworkCallback}. |
| * |
| * @param request {@link NetworkRequest} describing this request. |
| * @param operation Action to perform when the network is available (corresponds |
| * to the {@link NetworkCallback#onAvailable} call. Typically |
| * comes from {@link PendingIntent#getBroadcast}. |
| * @hide |
| */ |
| public void requestNetwork(NetworkRequest request, PendingIntent operation) { |
| try { |
| mService.pendingRequestForNetwork(request.networkCapabilities, operation); |
| } catch (RemoteException e) {} |
| } |
| |
| /** |
| * Registers to receive notifications about all networks which satisfy the given |
| * {@link NetworkRequest}. The callbacks will continue to be called until |
| * either the application exits or {@link #unregisterNetworkCallback} is called |
| * |
| * @param request {@link NetworkRequest} describing this request. |
| * @param networkCallback The {@link NetworkCallback} that the system will call as suitable |
| * networks change state. |
| */ |
| public void registerNetworkCallback(NetworkRequest request, NetworkCallback networkCallback) { |
| sendRequestForNetwork(request.networkCapabilities, networkCallback, 0, LISTEN, TYPE_NONE); |
| } |
| |
| /** |
| * Unregisters callbacks about and possibly releases networks originating from |
| * {@link #requestNetwork} and {@link #registerNetworkCallback} calls. If the |
| * given {@code NetworkCallback} had previosuly been used with {@code #requestNetwork}, |
| * any networks that had been connected to only to satisfy that request will be |
| * disconnected. |
| * |
| * @param networkCallback The {@link NetworkCallback} used when making the request. |
| */ |
| public void unregisterNetworkCallback(NetworkCallback networkCallback) { |
| if (networkCallback == null || networkCallback.networkRequest == null || |
| networkCallback.networkRequest.requestId == REQUEST_ID_UNSET) { |
| throw new IllegalArgumentException("Invalid NetworkCallback"); |
| } |
| try { |
| mService.releaseNetworkRequest(networkCallback.networkRequest); |
| } catch (RemoteException e) {} |
| } |
| |
| /** |
| * Binds the current process to {@code network}. All Sockets created in the future |
| * (and not explicitly bound via a bound SocketFactory from |
| * {@link Network#getSocketFactory() Network.getSocketFactory()}) will be bound to |
| * {@code network}. All host name resolutions will be limited to {@code network} as well. |
| * Note that if {@code network} ever disconnects, all Sockets created in this way will cease to |
| * work and all host name resolutions will fail. This is by design so an application doesn't |
| * accidentally use Sockets it thinks are still bound to a particular {@link Network}. |
| * To clear binding pass {@code null} for {@code network}. Using individually bound |
| * Sockets created by Network.getSocketFactory().createSocket() and |
| * performing network-specific host name resolutions via |
| * {@link Network#getAllByName Network.getAllByName} is preferred to calling |
| * {@code setProcessDefaultNetwork}. |
| * |
| * @param network The {@link Network} to bind the current process to, or {@code null} to clear |
| * the current binding. |
| * @return {@code true} on success, {@code false} if the {@link Network} is no longer valid. |
| */ |
| public static boolean setProcessDefaultNetwork(Network network) { |
| return NetworkUtils.bindProcessToNetwork(network == null ? NETID_UNSET : network.netId); |
| } |
| |
| /** |
| * Returns the {@link Network} currently bound to this process via |
| * {@link #setProcessDefaultNetwork}, or {@code null} if no {@link Network} is explicitly bound. |
| * |
| * @return {@code Network} to which this process is bound, or {@code null}. |
| */ |
| public static Network getProcessDefaultNetwork() { |
| int netId = NetworkUtils.getNetworkBoundToProcess(); |
| if (netId == NETID_UNSET) return null; |
| return new Network(netId); |
| } |
| |
| /** |
| * Binds host resolutions performed by this process to {@code network}. |
| * {@link #setProcessDefaultNetwork} takes precedence over this setting. |
| * |
| * @param network The {@link Network} to bind host resolutions from the current process to, or |
| * {@code null} to clear the current binding. |
| * @return {@code true} on success, {@code false} if the {@link Network} is no longer valid. |
| * @hide |
| * @deprecated This is strictly for legacy usage to support {@link #startUsingNetworkFeature}. |
| */ |
| public static boolean setProcessDefaultNetworkForHostResolution(Network network) { |
| return NetworkUtils.bindProcessToNetworkForHostResolution( |
| network == null ? NETID_UNSET : network.netId); |
| } |
| } |