ConnectivityManager.java revision 487ffe7d3d84bf65212158f7098e8a84b5b55e09
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16package android.net; 17 18import static com.android.internal.util.Preconditions.checkNotNull; 19 20import android.annotation.SdkConstant; 21import android.annotation.SdkConstant.SdkConstantType; 22import android.app.PendingIntent; 23import android.content.Context; 24import android.content.Intent; 25import android.net.NetworkUtils; 26import android.os.Binder; 27import android.os.Build.VERSION_CODES; 28import android.os.Handler; 29import android.os.HandlerThread; 30import android.os.IBinder; 31import android.os.INetworkActivityListener; 32import android.os.INetworkManagementService; 33import android.os.Looper; 34import android.os.Message; 35import android.os.Messenger; 36import android.os.RemoteException; 37import android.os.ServiceManager; 38import android.provider.Settings; 39import android.telephony.SubscriptionManager; 40import android.util.ArrayMap; 41import android.util.Log; 42 43import com.android.internal.telephony.ITelephony; 44import com.android.internal.telephony.PhoneConstants; 45import com.android.internal.util.Protocol; 46 47import java.net.InetAddress; 48import java.util.concurrent.atomic.AtomicInteger; 49import java.util.HashMap; 50 51import libcore.net.event.NetworkEventDispatcher; 52 53/** 54 * Class that answers queries about the state of network connectivity. It also 55 * notifies applications when network connectivity changes. Get an instance 56 * of this class by calling 57 * {@link android.content.Context#getSystemService(String) Context.getSystemService(Context.CONNECTIVITY_SERVICE)}. 58 * <p> 59 * The primary responsibilities of this class are to: 60 * <ol> 61 * <li>Monitor network connections (Wi-Fi, GPRS, UMTS, etc.)</li> 62 * <li>Send broadcast intents when network connectivity changes</li> 63 * <li>Attempt to "fail over" to another network when connectivity to a network 64 * is lost</li> 65 * <li>Provide an API that allows applications to query the coarse-grained or fine-grained 66 * state of the available networks</li> 67 * <li>Provide an API that allows applications to request and select networks for their data 68 * traffic</li> 69 * </ol> 70 */ 71public class ConnectivityManager { 72 private static final String TAG = "ConnectivityManager"; 73 74 /** 75 * A change in network connectivity has occurred. A default connection has either 76 * been established or lost. The NetworkInfo for the affected network is 77 * sent as an extra; it should be consulted to see what kind of 78 * connectivity event occurred. 79 * <p/> 80 * If this is a connection that was the result of failing over from a 81 * disconnected network, then the FAILOVER_CONNECTION boolean extra is 82 * set to true. 83 * <p/> 84 * For a loss of connectivity, if the connectivity manager is attempting 85 * to connect (or has already connected) to another network, the 86 * NetworkInfo for the new network is also passed as an extra. This lets 87 * any receivers of the broadcast know that they should not necessarily 88 * tell the user that no data traffic will be possible. Instead, the 89 * receiver should expect another broadcast soon, indicating either that 90 * the failover attempt succeeded (and so there is still overall data 91 * connectivity), or that the failover attempt failed, meaning that all 92 * connectivity has been lost. 93 * <p/> 94 * For a disconnect event, the boolean extra EXTRA_NO_CONNECTIVITY 95 * is set to {@code true} if there are no connected networks at all. 96 */ 97 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 98 public static final String CONNECTIVITY_ACTION = "android.net.conn.CONNECTIVITY_CHANGE"; 99 100 /** 101 * The device has connected to a network that has presented a captive 102 * portal, which is blocking Internet connectivity. The user was presented 103 * with a notification that network sign in is required, 104 * and the user invoked the notification's action indicating they 105 * desire to sign in to the network. Apps handling this activity should 106 * facilitate signing in to the network. This action includes a 107 * {@link Network} typed extra called {@link #EXTRA_NETWORK} that represents 108 * the network presenting the captive portal; all communication with the 109 * captive portal must be done using this {@code Network} object. 110 * <p/> 111 * This activity includes a {@link CaptivePortal} extra named 112 * {@link #EXTRA_CAPTIVE_PORTAL} that can be used to indicate different 113 * outcomes of the captive portal sign in to the system: 114 * <ul> 115 * <li> When the app handling this action believes the user has signed in to 116 * the network and the captive portal has been dismissed, the app should 117 * call {@link CaptivePortal#reportCaptivePortalDismissed} so the system can 118 * reevaluate the network. If reevaluation finds the network no longer 119 * subject to a captive portal, the network may become the default active 120 * data network. </li> 121 * <li> When the app handling this action believes the user explicitly wants 122 * to ignore the captive portal and the network, the app should call 123 * {@link CaptivePortal#ignoreNetwork}. </li> 124 * </ul> 125 */ 126 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 127 public static final String ACTION_CAPTIVE_PORTAL_SIGN_IN = "android.net.conn.CAPTIVE_PORTAL"; 128 129 /** 130 * The lookup key for a {@link NetworkInfo} object. Retrieve with 131 * {@link android.content.Intent#getParcelableExtra(String)}. 132 * 133 * @deprecated Since {@link NetworkInfo} can vary based on UID, applications 134 * should always obtain network information through 135 * {@link #getActiveNetworkInfo()}. 136 * @see #EXTRA_NETWORK_TYPE 137 */ 138 @Deprecated 139 public static final String EXTRA_NETWORK_INFO = "networkInfo"; 140 141 /** 142 * Network type which triggered a {@link #CONNECTIVITY_ACTION} broadcast. 143 * 144 * @see android.content.Intent#getIntExtra(String, int) 145 */ 146 public static final String EXTRA_NETWORK_TYPE = "networkType"; 147 148 /** 149 * The lookup key for a boolean that indicates whether a connect event 150 * is for a network to which the connectivity manager was failing over 151 * following a disconnect on another network. 152 * Retrieve it with {@link android.content.Intent#getBooleanExtra(String,boolean)}. 153 */ 154 public static final String EXTRA_IS_FAILOVER = "isFailover"; 155 /** 156 * The lookup key for a {@link NetworkInfo} object. This is supplied when 157 * there is another network that it may be possible to connect to. Retrieve with 158 * {@link android.content.Intent#getParcelableExtra(String)}. 159 */ 160 public static final String EXTRA_OTHER_NETWORK_INFO = "otherNetwork"; 161 /** 162 * The lookup key for a boolean that indicates whether there is a 163 * complete lack of connectivity, i.e., no network is available. 164 * Retrieve it with {@link android.content.Intent#getBooleanExtra(String,boolean)}. 165 */ 166 public static final String EXTRA_NO_CONNECTIVITY = "noConnectivity"; 167 /** 168 * The lookup key for a string that indicates why an attempt to connect 169 * to a network failed. The string has no particular structure. It is 170 * intended to be used in notifications presented to users. Retrieve 171 * it with {@link android.content.Intent#getStringExtra(String)}. 172 */ 173 public static final String EXTRA_REASON = "reason"; 174 /** 175 * The lookup key for a string that provides optionally supplied 176 * extra information about the network state. The information 177 * may be passed up from the lower networking layers, and its 178 * meaning may be specific to a particular network type. Retrieve 179 * it with {@link android.content.Intent#getStringExtra(String)}. 180 */ 181 public static final String EXTRA_EXTRA_INFO = "extraInfo"; 182 /** 183 * The lookup key for an int that provides information about 184 * our connection to the internet at large. 0 indicates no connection, 185 * 100 indicates a great connection. Retrieve it with 186 * {@link android.content.Intent#getIntExtra(String, int)}. 187 * {@hide} 188 */ 189 public static final String EXTRA_INET_CONDITION = "inetCondition"; 190 /** 191 * The lookup key for a {@link CaptivePortal} object included with the 192 * {@link #ACTION_CAPTIVE_PORTAL_SIGN_IN} intent. The {@code CaptivePortal} 193 * object can be used to either indicate to the system that the captive 194 * portal has been dismissed or that the user does not want to pursue 195 * signing in to captive portal. Retrieve it with 196 * {@link android.content.Intent#getParcelableExtra(String)}. 197 */ 198 public static final String EXTRA_CAPTIVE_PORTAL = "android.net.extra.CAPTIVE_PORTAL"; 199 /** 200 * Broadcast action to indicate the change of data activity status 201 * (idle or active) on a network in a recent period. 202 * The network becomes active when data transmission is started, or 203 * idle if there is no data transmission for a period of time. 204 * {@hide} 205 */ 206 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 207 public static final String ACTION_DATA_ACTIVITY_CHANGE = "android.net.conn.DATA_ACTIVITY_CHANGE"; 208 /** 209 * The lookup key for an enum that indicates the network device type on which this data activity 210 * change happens. 211 * {@hide} 212 */ 213 public static final String EXTRA_DEVICE_TYPE = "deviceType"; 214 /** 215 * The lookup key for a boolean that indicates the device is active or not. {@code true} means 216 * it is actively sending or receiving data and {@code false} means it is idle. 217 * {@hide} 218 */ 219 public static final String EXTRA_IS_ACTIVE = "isActive"; 220 /** 221 * The lookup key for a long that contains the timestamp (nanos) of the radio state change. 222 * {@hide} 223 */ 224 public static final String EXTRA_REALTIME_NS = "tsNanos"; 225 226 /** 227 * Broadcast Action: The setting for background data usage has changed 228 * values. Use {@link #getBackgroundDataSetting()} to get the current value. 229 * <p> 230 * If an application uses the network in the background, it should listen 231 * for this broadcast and stop using the background data if the value is 232 * {@code false}. 233 * <p> 234 * 235 * @deprecated As of {@link VERSION_CODES#ICE_CREAM_SANDWICH}, availability 236 * of background data depends on several combined factors, and 237 * this broadcast is no longer sent. Instead, when background 238 * data is unavailable, {@link #getActiveNetworkInfo()} will now 239 * appear disconnected. During first boot after a platform 240 * upgrade, this broadcast will be sent once if 241 * {@link #getBackgroundDataSetting()} was {@code false} before 242 * the upgrade. 243 */ 244 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 245 @Deprecated 246 public static final String ACTION_BACKGROUND_DATA_SETTING_CHANGED = 247 "android.net.conn.BACKGROUND_DATA_SETTING_CHANGED"; 248 249 /** 250 * Broadcast Action: The network connection may not be good 251 * uses {@code ConnectivityManager.EXTRA_INET_CONDITION} and 252 * {@code ConnectivityManager.EXTRA_NETWORK_INFO} to specify 253 * the network and it's condition. 254 * @hide 255 */ 256 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 257 public static final String INET_CONDITION_ACTION = 258 "android.net.conn.INET_CONDITION_ACTION"; 259 260 /** 261 * Broadcast Action: A tetherable connection has come or gone. 262 * Uses {@code ConnectivityManager.EXTRA_AVAILABLE_TETHER}, 263 * {@code ConnectivityManager.EXTRA_ACTIVE_TETHER} and 264 * {@code ConnectivityManager.EXTRA_ERRORED_TETHER} to indicate 265 * the current state of tethering. Each include a list of 266 * interface names in that state (may be empty). 267 * @hide 268 */ 269 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 270 public static final String ACTION_TETHER_STATE_CHANGED = 271 "android.net.conn.TETHER_STATE_CHANGED"; 272 273 /** 274 * @hide 275 * gives a String[] listing all the interfaces configured for 276 * tethering and currently available for tethering. 277 */ 278 public static final String EXTRA_AVAILABLE_TETHER = "availableArray"; 279 280 /** 281 * @hide 282 * gives a String[] listing all the interfaces currently tethered 283 * (ie, has dhcp support and packets potentially forwarded/NATed) 284 */ 285 public static final String EXTRA_ACTIVE_TETHER = "activeArray"; 286 287 /** 288 * @hide 289 * gives a String[] listing all the interfaces we tried to tether and 290 * failed. Use {@link #getLastTetherError} to find the error code 291 * for any interfaces listed here. 292 */ 293 public static final String EXTRA_ERRORED_TETHER = "erroredArray"; 294 295 /** 296 * Broadcast Action: The captive portal tracker has finished its test. 297 * Sent only while running Setup Wizard, in lieu of showing a user 298 * notification. 299 * @hide 300 */ 301 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 302 public static final String ACTION_CAPTIVE_PORTAL_TEST_COMPLETED = 303 "android.net.conn.CAPTIVE_PORTAL_TEST_COMPLETED"; 304 /** 305 * The lookup key for a boolean that indicates whether a captive portal was detected. 306 * Retrieve it with {@link android.content.Intent#getBooleanExtra(String,boolean)}. 307 * @hide 308 */ 309 public static final String EXTRA_IS_CAPTIVE_PORTAL = "captivePortal"; 310 311 /** 312 * Action used to display a dialog that asks the user whether to connect to a network that is 313 * not validated. This intent is used to start the dialog in settings via startActivity. 314 * 315 * @hide 316 */ 317 public static final String ACTION_PROMPT_UNVALIDATED = "android.net.conn.PROMPT_UNVALIDATED"; 318 319 /** 320 * The absence of a connection type. 321 * @hide 322 */ 323 public static final int TYPE_NONE = -1; 324 325 /** 326 * The Mobile data connection. When active, all data traffic 327 * will use this network type's interface by default 328 * (it has a default route) 329 */ 330 public static final int TYPE_MOBILE = 0; 331 /** 332 * The WIFI data connection. When active, all data traffic 333 * will use this network type's interface by default 334 * (it has a default route). 335 */ 336 public static final int TYPE_WIFI = 1; 337 /** 338 * An MMS-specific Mobile data connection. This network type may use the 339 * same network interface as {@link #TYPE_MOBILE} or it may use a different 340 * one. This is used by applications needing to talk to the carrier's 341 * Multimedia Messaging Service servers. 342 * 343 * @deprecated Applications should instead use 344 * {@link #requestNetwork(NetworkRequest, NetworkCallback)} to request a network that 345 * provides the {@link NetworkCapabilities#NET_CAPABILITY_MMS} capability. 346 */ 347 public static final int TYPE_MOBILE_MMS = 2; 348 /** 349 * A SUPL-specific Mobile data connection. This network type may use the 350 * same network interface as {@link #TYPE_MOBILE} or it may use a different 351 * one. This is used by applications needing to talk to the carrier's 352 * Secure User Plane Location servers for help locating the device. 353 * 354 * @deprecated Applications should instead use 355 * {@link #requestNetwork(NetworkRequest, NetworkCallback)} to request a network that 356 * provides the {@link NetworkCapabilities#NET_CAPABILITY_SUPL} capability. 357 */ 358 public static final int TYPE_MOBILE_SUPL = 3; 359 /** 360 * A DUN-specific Mobile data connection. This network type may use the 361 * same network interface as {@link #TYPE_MOBILE} or it may use a different 362 * one. This is sometimes by the system when setting up an upstream connection 363 * for tethering so that the carrier is aware of DUN traffic. 364 */ 365 public static final int TYPE_MOBILE_DUN = 4; 366 /** 367 * A High Priority Mobile data connection. This network type uses the 368 * same network interface as {@link #TYPE_MOBILE} but the routing setup 369 * is different. 370 * 371 * @deprecated Applications should instead use 372 * {@link #requestNetwork(NetworkRequest, NetworkCallback)} to request a network that 373 * uses the {@link NetworkCapabilities#TRANSPORT_CELLULAR} transport. 374 */ 375 public static final int TYPE_MOBILE_HIPRI = 5; 376 /** 377 * The WiMAX data connection. When active, all data traffic 378 * will use this network type's interface by default 379 * (it has a default route). 380 */ 381 public static final int TYPE_WIMAX = 6; 382 383 /** 384 * The Bluetooth data connection. When active, all data traffic 385 * will use this network type's interface by default 386 * (it has a default route). 387 */ 388 public static final int TYPE_BLUETOOTH = 7; 389 390 /** 391 * Dummy data connection. This should not be used on shipping devices. 392 */ 393 public static final int TYPE_DUMMY = 8; 394 395 /** 396 * The Ethernet data connection. When active, all data traffic 397 * will use this network type's interface by default 398 * (it has a default route). 399 */ 400 public static final int TYPE_ETHERNET = 9; 401 402 /** 403 * Over the air Administration. 404 * {@hide} 405 */ 406 public static final int TYPE_MOBILE_FOTA = 10; 407 408 /** 409 * IP Multimedia Subsystem. 410 * {@hide} 411 */ 412 public static final int TYPE_MOBILE_IMS = 11; 413 414 /** 415 * Carrier Branded Services. 416 * {@hide} 417 */ 418 public static final int TYPE_MOBILE_CBS = 12; 419 420 /** 421 * A Wi-Fi p2p connection. Only requesting processes will have access to 422 * the peers connected. 423 * {@hide} 424 */ 425 public static final int TYPE_WIFI_P2P = 13; 426 427 /** 428 * The network to use for initially attaching to the network 429 * {@hide} 430 */ 431 public static final int TYPE_MOBILE_IA = 14; 432 433 /** 434 * Emergency PDN connection for emergency services. This 435 * may include IMS and MMS in emergency situations. 436 * {@hide} 437 */ 438 public static final int TYPE_MOBILE_EMERGENCY = 15; 439 440 /** 441 * The network that uses proxy to achieve connectivity. 442 * {@hide} 443 */ 444 public static final int TYPE_PROXY = 16; 445 446 /** 447 * A virtual network using one or more native bearers. 448 * It may or may not be providing security services. 449 */ 450 public static final int TYPE_VPN = 17; 451 452 /** {@hide} */ 453 public static final int MAX_RADIO_TYPE = TYPE_VPN; 454 455 /** {@hide} */ 456 public static final int MAX_NETWORK_TYPE = TYPE_VPN; 457 458 /** 459 * If you want to set the default network preference,you can directly 460 * change the networkAttributes array in framework's config.xml. 461 * 462 * @deprecated Since we support so many more networks now, the single 463 * network default network preference can't really express 464 * the hierarchy. Instead, the default is defined by the 465 * networkAttributes in config.xml. You can determine 466 * the current value by calling {@link #getNetworkPreference()} 467 * from an App. 468 */ 469 @Deprecated 470 public static final int DEFAULT_NETWORK_PREFERENCE = TYPE_WIFI; 471 472 /** 473 * @hide 474 */ 475 public final static int REQUEST_ID_UNSET = 0; 476 477 /** 478 * A NetID indicating no Network is selected. 479 * Keep in sync with bionic/libc/dns/include/resolv_netid.h 480 * @hide 481 */ 482 public static final int NETID_UNSET = 0; 483 484 private final IConnectivityManager mService; 485 /** 486 * A kludge to facilitate static access where a Context pointer isn't available, like in the 487 * case of the static set/getProcessDefaultNetwork methods and from the Network class. 488 * TODO: Remove this after deprecating the static methods in favor of non-static methods or 489 * methods that take a Context argument. 490 */ 491 private static ConnectivityManager sInstance; 492 493 private INetworkManagementService mNMService; 494 495 /** 496 * Tests if a given integer represents a valid network type. 497 * @param networkType the type to be tested 498 * @return a boolean. {@code true} if the type is valid, else {@code false} 499 * @deprecated All APIs accepting a network type are deprecated. There should be no need to 500 * validate a network type. 501 */ 502 public static boolean isNetworkTypeValid(int networkType) { 503 return networkType >= 0 && networkType <= MAX_NETWORK_TYPE; 504 } 505 506 /** 507 * Returns a non-localized string representing a given network type. 508 * ONLY used for debugging output. 509 * @param type the type needing naming 510 * @return a String for the given type, or a string version of the type ("87") 511 * if no name is known. 512 * {@hide} 513 */ 514 public static String getNetworkTypeName(int type) { 515 switch (type) { 516 case TYPE_MOBILE: 517 return "MOBILE"; 518 case TYPE_WIFI: 519 return "WIFI"; 520 case TYPE_MOBILE_MMS: 521 return "MOBILE_MMS"; 522 case TYPE_MOBILE_SUPL: 523 return "MOBILE_SUPL"; 524 case TYPE_MOBILE_DUN: 525 return "MOBILE_DUN"; 526 case TYPE_MOBILE_HIPRI: 527 return "MOBILE_HIPRI"; 528 case TYPE_WIMAX: 529 return "WIMAX"; 530 case TYPE_BLUETOOTH: 531 return "BLUETOOTH"; 532 case TYPE_DUMMY: 533 return "DUMMY"; 534 case TYPE_ETHERNET: 535 return "ETHERNET"; 536 case TYPE_MOBILE_FOTA: 537 return "MOBILE_FOTA"; 538 case TYPE_MOBILE_IMS: 539 return "MOBILE_IMS"; 540 case TYPE_MOBILE_CBS: 541 return "MOBILE_CBS"; 542 case TYPE_WIFI_P2P: 543 return "WIFI_P2P"; 544 case TYPE_MOBILE_IA: 545 return "MOBILE_IA"; 546 case TYPE_MOBILE_EMERGENCY: 547 return "MOBILE_EMERGENCY"; 548 case TYPE_PROXY: 549 return "PROXY"; 550 case TYPE_VPN: 551 return "VPN"; 552 default: 553 return Integer.toString(type); 554 } 555 } 556 557 /** 558 * Checks if a given type uses the cellular data connection. 559 * This should be replaced in the future by a network property. 560 * @param networkType the type to check 561 * @return a boolean - {@code true} if uses cellular network, else {@code false} 562 * {@hide} 563 */ 564 public static boolean isNetworkTypeMobile(int networkType) { 565 switch (networkType) { 566 case TYPE_MOBILE: 567 case TYPE_MOBILE_MMS: 568 case TYPE_MOBILE_SUPL: 569 case TYPE_MOBILE_DUN: 570 case TYPE_MOBILE_HIPRI: 571 case TYPE_MOBILE_FOTA: 572 case TYPE_MOBILE_IMS: 573 case TYPE_MOBILE_CBS: 574 case TYPE_MOBILE_IA: 575 case TYPE_MOBILE_EMERGENCY: 576 return true; 577 default: 578 return false; 579 } 580 } 581 582 /** 583 * Checks if the given network type is backed by a Wi-Fi radio. 584 * 585 * @hide 586 */ 587 public static boolean isNetworkTypeWifi(int networkType) { 588 switch (networkType) { 589 case TYPE_WIFI: 590 case TYPE_WIFI_P2P: 591 return true; 592 default: 593 return false; 594 } 595 } 596 597 /** 598 * Specifies the preferred network type. When the device has more 599 * than one type available the preferred network type will be used. 600 * 601 * @param preference the network type to prefer over all others. It is 602 * unspecified what happens to the old preferred network in the 603 * overall ordering. 604 * @deprecated Functionality has been removed as it no longer makes sense, 605 * with many more than two networks - we'd need an array to express 606 * preference. Instead we use dynamic network properties of 607 * the networks to describe their precedence. 608 */ 609 public void setNetworkPreference(int preference) { 610 } 611 612 /** 613 * Retrieves the current preferred network type. 614 * <p>This method requires the caller to hold the permission 615 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 616 * 617 * @return an integer representing the preferred network type 618 * 619 * @deprecated Functionality has been removed as it no longer makes sense, 620 * with many more than two networks - we'd need an array to express 621 * preference. Instead we use dynamic network properties of 622 * the networks to describe their precedence. 623 */ 624 public int getNetworkPreference() { 625 return TYPE_NONE; 626 } 627 628 /** 629 * Returns details about the currently active default data network. When 630 * connected, this network is the default route for outgoing connections. 631 * You should always check {@link NetworkInfo#isConnected()} before initiating 632 * network traffic. This may return {@code null} when there is no default 633 * network. 634 * <p>This method requires the caller to hold the permission 635 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 636 * 637 * @return a {@link NetworkInfo} object for the current default network 638 * or {@code null} if no default network is currently active 639 */ 640 public NetworkInfo getActiveNetworkInfo() { 641 try { 642 return mService.getActiveNetworkInfo(); 643 } catch (RemoteException e) { 644 return null; 645 } 646 } 647 648 /** 649 * Returns a {@link Network} object corresponding to the currently active 650 * default data network. In the event that the current active default data 651 * network disconnects, the returned {@code Network} object will no longer 652 * be usable. This will return {@code null} when there is no default 653 * network. 654 * <p>This method requires the caller to hold the permission 655 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 656 * 657 * @return a {@link Network} object for the current default network or 658 * {@code null} if no default network is currently active 659 */ 660 public Network getActiveNetwork() { 661 try { 662 return mService.getActiveNetwork(); 663 } catch (RemoteException e) { 664 return null; 665 } 666 } 667 668 /** 669 * Returns details about the currently active default data network 670 * for a given uid. This is for internal use only to avoid spying 671 * other apps. 672 * <p>This method requires the caller to hold the permission 673 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL} 674 * 675 * @return a {@link NetworkInfo} object for the current default network 676 * for the given uid or {@code null} if no default network is 677 * available for the specified uid. 678 * 679 * {@hide} 680 */ 681 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 682 try { 683 return mService.getActiveNetworkInfoForUid(uid); 684 } catch (RemoteException e) { 685 return null; 686 } 687 } 688 689 /** 690 * Returns connection status information about a particular 691 * network type. 692 * <p>This method requires the caller to hold the permission 693 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 694 * 695 * @param networkType integer specifying which networkType in 696 * which you're interested. 697 * @return a {@link NetworkInfo} object for the requested 698 * network type or {@code null} if the type is not 699 * supported by the device. 700 * 701 * @deprecated This method does not support multiple connected networks 702 * of the same type. Use {@link #getAllNetworks} and 703 * {@link #getNetworkInfo(android.net.Network)} instead. 704 */ 705 public NetworkInfo getNetworkInfo(int networkType) { 706 try { 707 return mService.getNetworkInfo(networkType); 708 } catch (RemoteException e) { 709 return null; 710 } 711 } 712 713 /** 714 * Returns connection status information about a particular 715 * Network. 716 * <p>This method requires the caller to hold the permission 717 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 718 * 719 * @param network {@link Network} specifying which network 720 * in which you're interested. 721 * @return a {@link NetworkInfo} object for the requested 722 * network or {@code null} if the {@code Network} 723 * is not valid. 724 */ 725 public NetworkInfo getNetworkInfo(Network network) { 726 try { 727 return mService.getNetworkInfoForNetwork(network); 728 } catch (RemoteException e) { 729 return null; 730 } 731 } 732 733 /** 734 * Returns connection status information about all network 735 * types supported by the device. 736 * <p>This method requires the caller to hold the permission 737 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 738 * 739 * @return an array of {@link NetworkInfo} objects. Check each 740 * {@link NetworkInfo#getType} for which type each applies. 741 * 742 * @deprecated This method does not support multiple connected networks 743 * of the same type. Use {@link #getAllNetworks} and 744 * {@link #getNetworkInfo(android.net.Network)} instead. 745 */ 746 public NetworkInfo[] getAllNetworkInfo() { 747 try { 748 return mService.getAllNetworkInfo(); 749 } catch (RemoteException e) { 750 return null; 751 } 752 } 753 754 /** 755 * Returns the {@link Network} object currently serving a given type, or 756 * null if the given type is not connected. 757 * 758 * <p>This method requires the caller to hold the permission 759 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 760 * 761 * @hide 762 * @deprecated This method does not support multiple connected networks 763 * of the same type. Use {@link #getAllNetworks} and 764 * {@link #getNetworkInfo(android.net.Network)} instead. 765 */ 766 public Network getNetworkForType(int networkType) { 767 try { 768 return mService.getNetworkForType(networkType); 769 } catch (RemoteException e) { 770 return null; 771 } 772 } 773 774 /** 775 * Returns an array of all {@link Network} currently tracked by the 776 * framework. 777 * <p>This method requires the caller to hold the permission 778 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 779 * 780 * @return an array of {@link Network} objects. 781 */ 782 public Network[] getAllNetworks() { 783 try { 784 return mService.getAllNetworks(); 785 } catch (RemoteException e) { 786 return null; 787 } 788 } 789 790 /** 791 * Returns an array of {@link android.net.NetworkCapabilities} objects, representing 792 * the Networks that applications run by the given user will use by default. 793 * @hide 794 */ 795 public NetworkCapabilities[] getDefaultNetworkCapabilitiesForUser(int userId) { 796 try { 797 return mService.getDefaultNetworkCapabilitiesForUser(userId); 798 } catch (RemoteException e) { 799 return null; 800 } 801 } 802 803 /** 804 * Returns the IP information for the current default network. 805 * <p>This method requires the caller to hold the permission 806 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 807 * 808 * @return a {@link LinkProperties} object describing the IP info 809 * for the current default network, or {@code null} if there 810 * is no current default network. 811 * 812 * {@hide} 813 */ 814 public LinkProperties getActiveLinkProperties() { 815 try { 816 return mService.getActiveLinkProperties(); 817 } catch (RemoteException e) { 818 return null; 819 } 820 } 821 822 /** 823 * Returns the IP information for a given network type. 824 * <p>This method requires the caller to hold the permission 825 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 826 * 827 * @param networkType the network type of interest. 828 * @return a {@link LinkProperties} object describing the IP info 829 * for the given networkType, or {@code null} if there is 830 * no current default network. 831 * 832 * {@hide} 833 * @deprecated This method does not support multiple connected networks 834 * of the same type. Use {@link #getAllNetworks}, 835 * {@link #getNetworkInfo(android.net.Network)}, and 836 * {@link #getLinkProperties(android.net.Network)} instead. 837 */ 838 public LinkProperties getLinkProperties(int networkType) { 839 try { 840 return mService.getLinkPropertiesForType(networkType); 841 } catch (RemoteException e) { 842 return null; 843 } 844 } 845 846 /** 847 * Get the {@link LinkProperties} for the given {@link Network}. This 848 * will return {@code null} if the network is unknown. 849 * <p>This method requires the caller to hold the permission 850 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 851 * 852 * @param network The {@link Network} object identifying the network in question. 853 * @return The {@link LinkProperties} for the network, or {@code null}. 854 */ 855 public LinkProperties getLinkProperties(Network network) { 856 try { 857 return mService.getLinkProperties(network); 858 } catch (RemoteException e) { 859 return null; 860 } 861 } 862 863 /** 864 * Get the {@link android.net.NetworkCapabilities} for the given {@link Network}. This 865 * will return {@code null} if the network is unknown. 866 * <p>This method requires the caller to hold the permission 867 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 868 * 869 * @param network The {@link Network} object identifying the network in question. 870 * @return The {@link android.net.NetworkCapabilities} for the network, or {@code null}. 871 */ 872 public NetworkCapabilities getNetworkCapabilities(Network network) { 873 try { 874 return mService.getNetworkCapabilities(network); 875 } catch (RemoteException e) { 876 return null; 877 } 878 } 879 880 /** 881 * Tells the underlying networking system that the caller wants to 882 * begin using the named feature. The interpretation of {@code feature} 883 * is completely up to each networking implementation. 884 * <p>This method requires the caller to hold the permission 885 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 886 * @param networkType specifies which network the request pertains to 887 * @param feature the name of the feature to be used 888 * @return an integer value representing the outcome of the request. 889 * The interpretation of this value is specific to each networking 890 * implementation+feature combination, except that the value {@code -1} 891 * always indicates failure. 892 * 893 * @deprecated Deprecated in favor of the cleaner 894 * {@link #requestNetwork(NetworkRequest, NetworkCallback)} API. 895 * @removed 896 */ 897 public int startUsingNetworkFeature(int networkType, String feature) { 898 NetworkCapabilities netCap = networkCapabilitiesForFeature(networkType, feature); 899 if (netCap == null) { 900 Log.d(TAG, "Can't satisfy startUsingNetworkFeature for " + networkType + ", " + 901 feature); 902 return PhoneConstants.APN_REQUEST_FAILED; 903 } 904 905 NetworkRequest request = null; 906 synchronized (sLegacyRequests) { 907 LegacyRequest l = sLegacyRequests.get(netCap); 908 if (l != null) { 909 Log.d(TAG, "renewing startUsingNetworkFeature request " + l.networkRequest); 910 renewRequestLocked(l); 911 if (l.currentNetwork != null) { 912 return PhoneConstants.APN_ALREADY_ACTIVE; 913 } else { 914 return PhoneConstants.APN_REQUEST_STARTED; 915 } 916 } 917 918 request = requestNetworkForFeatureLocked(netCap); 919 } 920 if (request != null) { 921 Log.d(TAG, "starting startUsingNetworkFeature for request " + request); 922 return PhoneConstants.APN_REQUEST_STARTED; 923 } else { 924 Log.d(TAG, " request Failed"); 925 return PhoneConstants.APN_REQUEST_FAILED; 926 } 927 } 928 929 /** 930 * Tells the underlying networking system that the caller is finished 931 * using the named feature. The interpretation of {@code feature} 932 * is completely up to each networking implementation. 933 * <p>This method requires the caller to hold the permission 934 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 935 * @param networkType specifies which network the request pertains to 936 * @param feature the name of the feature that is no longer needed 937 * @return an integer value representing the outcome of the request. 938 * The interpretation of this value is specific to each networking 939 * implementation+feature combination, except that the value {@code -1} 940 * always indicates failure. 941 * 942 * @deprecated Deprecated in favor of the cleaner {@link unregisterNetworkCallback} API. 943 * @removed 944 */ 945 public int stopUsingNetworkFeature(int networkType, String feature) { 946 NetworkCapabilities netCap = networkCapabilitiesForFeature(networkType, feature); 947 if (netCap == null) { 948 Log.d(TAG, "Can't satisfy stopUsingNetworkFeature for " + networkType + ", " + 949 feature); 950 return -1; 951 } 952 953 if (removeRequestForFeature(netCap)) { 954 Log.d(TAG, "stopUsingNetworkFeature for " + networkType + ", " + feature); 955 } 956 return 1; 957 } 958 959 private NetworkCapabilities networkCapabilitiesForFeature(int networkType, String feature) { 960 if (networkType == TYPE_MOBILE) { 961 int cap = -1; 962 if ("enableMMS".equals(feature)) { 963 cap = NetworkCapabilities.NET_CAPABILITY_MMS; 964 } else if ("enableSUPL".equals(feature)) { 965 cap = NetworkCapabilities.NET_CAPABILITY_SUPL; 966 } else if ("enableDUN".equals(feature) || "enableDUNAlways".equals(feature)) { 967 cap = NetworkCapabilities.NET_CAPABILITY_DUN; 968 } else if ("enableHIPRI".equals(feature)) { 969 cap = NetworkCapabilities.NET_CAPABILITY_INTERNET; 970 } else if ("enableFOTA".equals(feature)) { 971 cap = NetworkCapabilities.NET_CAPABILITY_FOTA; 972 } else if ("enableIMS".equals(feature)) { 973 cap = NetworkCapabilities.NET_CAPABILITY_IMS; 974 } else if ("enableCBS".equals(feature)) { 975 cap = NetworkCapabilities.NET_CAPABILITY_CBS; 976 } else { 977 return null; 978 } 979 NetworkCapabilities netCap = new NetworkCapabilities(); 980 netCap.addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR).addCapability(cap); 981 netCap.maybeMarkCapabilitiesRestricted(); 982 return netCap; 983 } else if (networkType == TYPE_WIFI) { 984 if ("p2p".equals(feature)) { 985 NetworkCapabilities netCap = new NetworkCapabilities(); 986 netCap.addTransportType(NetworkCapabilities.TRANSPORT_WIFI); 987 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_WIFI_P2P); 988 netCap.maybeMarkCapabilitiesRestricted(); 989 return netCap; 990 } 991 } 992 return null; 993 } 994 995 /** 996 * Guess what the network request was trying to say so that the resulting 997 * network is accessible via the legacy (deprecated) API such as 998 * requestRouteToHost. 999 * This means we should try to be fairly preceise about transport and 1000 * capability but ignore things such as networkSpecifier. 1001 * If the request has more than one transport or capability it doesn't 1002 * match the old legacy requests (they selected only single transport/capability) 1003 * so this function cannot map the request to a single legacy type and 1004 * the resulting network will not be available to the legacy APIs. 1005 * 1006 * TODO - This should be removed when the legacy APIs are removed. 1007 */ 1008 private int inferLegacyTypeForNetworkCapabilities(NetworkCapabilities netCap) { 1009 if (netCap == null) { 1010 return TYPE_NONE; 1011 } 1012 1013 if (!netCap.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)) { 1014 return TYPE_NONE; 1015 } 1016 1017 String type = null; 1018 int result = TYPE_NONE; 1019 1020 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_CBS)) { 1021 type = "enableCBS"; 1022 result = TYPE_MOBILE_CBS; 1023 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_IMS)) { 1024 type = "enableIMS"; 1025 result = TYPE_MOBILE_IMS; 1026 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_FOTA)) { 1027 type = "enableFOTA"; 1028 result = TYPE_MOBILE_FOTA; 1029 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_DUN)) { 1030 type = "enableDUN"; 1031 result = TYPE_MOBILE_DUN; 1032 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_SUPL)) { 1033 type = "enableSUPL"; 1034 result = TYPE_MOBILE_SUPL; 1035 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_MMS)) { 1036 type = "enableMMS"; 1037 result = TYPE_MOBILE_MMS; 1038 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)) { 1039 type = "enableHIPRI"; 1040 result = TYPE_MOBILE_HIPRI; 1041 } 1042 if (type != null) { 1043 NetworkCapabilities testCap = networkCapabilitiesForFeature(TYPE_MOBILE, type); 1044 if (testCap.equalsNetCapabilities(netCap) && testCap.equalsTransportTypes(netCap)) { 1045 return result; 1046 } 1047 } 1048 return TYPE_NONE; 1049 } 1050 1051 private int legacyTypeForNetworkCapabilities(NetworkCapabilities netCap) { 1052 if (netCap == null) return TYPE_NONE; 1053 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_CBS)) { 1054 return TYPE_MOBILE_CBS; 1055 } 1056 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_IMS)) { 1057 return TYPE_MOBILE_IMS; 1058 } 1059 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_FOTA)) { 1060 return TYPE_MOBILE_FOTA; 1061 } 1062 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_DUN)) { 1063 return TYPE_MOBILE_DUN; 1064 } 1065 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_SUPL)) { 1066 return TYPE_MOBILE_SUPL; 1067 } 1068 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_MMS)) { 1069 return TYPE_MOBILE_MMS; 1070 } 1071 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)) { 1072 return TYPE_MOBILE_HIPRI; 1073 } 1074 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_WIFI_P2P)) { 1075 return TYPE_WIFI_P2P; 1076 } 1077 return TYPE_NONE; 1078 } 1079 1080 private static class LegacyRequest { 1081 NetworkCapabilities networkCapabilities; 1082 NetworkRequest networkRequest; 1083 int expireSequenceNumber; 1084 Network currentNetwork; 1085 int delay = -1; 1086 1087 private void clearDnsBinding() { 1088 if (currentNetwork != null) { 1089 currentNetwork = null; 1090 setProcessDefaultNetworkForHostResolution(null); 1091 } 1092 } 1093 1094 NetworkCallback networkCallback = new NetworkCallback() { 1095 @Override 1096 public void onAvailable(Network network) { 1097 currentNetwork = network; 1098 Log.d(TAG, "startUsingNetworkFeature got Network:" + network); 1099 setProcessDefaultNetworkForHostResolution(network); 1100 } 1101 @Override 1102 public void onLost(Network network) { 1103 if (network.equals(currentNetwork)) clearDnsBinding(); 1104 Log.d(TAG, "startUsingNetworkFeature lost Network:" + network); 1105 } 1106 }; 1107 } 1108 1109 private static HashMap<NetworkCapabilities, LegacyRequest> sLegacyRequests = 1110 new HashMap<NetworkCapabilities, LegacyRequest>(); 1111 1112 private NetworkRequest findRequestForFeature(NetworkCapabilities netCap) { 1113 synchronized (sLegacyRequests) { 1114 LegacyRequest l = sLegacyRequests.get(netCap); 1115 if (l != null) return l.networkRequest; 1116 } 1117 return null; 1118 } 1119 1120 private void renewRequestLocked(LegacyRequest l) { 1121 l.expireSequenceNumber++; 1122 Log.d(TAG, "renewing request to seqNum " + l.expireSequenceNumber); 1123 sendExpireMsgForFeature(l.networkCapabilities, l.expireSequenceNumber, l.delay); 1124 } 1125 1126 private void expireRequest(NetworkCapabilities netCap, int sequenceNum) { 1127 int ourSeqNum = -1; 1128 synchronized (sLegacyRequests) { 1129 LegacyRequest l = sLegacyRequests.get(netCap); 1130 if (l == null) return; 1131 ourSeqNum = l.expireSequenceNumber; 1132 if (l.expireSequenceNumber == sequenceNum) removeRequestForFeature(netCap); 1133 } 1134 Log.d(TAG, "expireRequest with " + ourSeqNum + ", " + sequenceNum); 1135 } 1136 1137 private NetworkRequest requestNetworkForFeatureLocked(NetworkCapabilities netCap) { 1138 int delay = -1; 1139 int type = legacyTypeForNetworkCapabilities(netCap); 1140 try { 1141 delay = mService.getRestoreDefaultNetworkDelay(type); 1142 } catch (RemoteException e) {} 1143 LegacyRequest l = new LegacyRequest(); 1144 l.networkCapabilities = netCap; 1145 l.delay = delay; 1146 l.expireSequenceNumber = 0; 1147 l.networkRequest = sendRequestForNetwork(netCap, l.networkCallback, 0, 1148 REQUEST, type); 1149 if (l.networkRequest == null) return null; 1150 sLegacyRequests.put(netCap, l); 1151 sendExpireMsgForFeature(netCap, l.expireSequenceNumber, delay); 1152 return l.networkRequest; 1153 } 1154 1155 private void sendExpireMsgForFeature(NetworkCapabilities netCap, int seqNum, int delay) { 1156 if (delay >= 0) { 1157 Log.d(TAG, "sending expire msg with seqNum " + seqNum + " and delay " + delay); 1158 Message msg = sCallbackHandler.obtainMessage(EXPIRE_LEGACY_REQUEST, seqNum, 0, netCap); 1159 sCallbackHandler.sendMessageDelayed(msg, delay); 1160 } 1161 } 1162 1163 private boolean removeRequestForFeature(NetworkCapabilities netCap) { 1164 final LegacyRequest l; 1165 synchronized (sLegacyRequests) { 1166 l = sLegacyRequests.remove(netCap); 1167 } 1168 if (l == null) return false; 1169 unregisterNetworkCallback(l.networkCallback); 1170 l.clearDnsBinding(); 1171 return true; 1172 } 1173 1174 /** 1175 * Ensure that a network route exists to deliver traffic to the specified 1176 * host via the specified network interface. An attempt to add a route that 1177 * already exists is ignored, but treated as successful. 1178 * <p>This method requires the caller to hold the permission 1179 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1180 * @param networkType the type of the network over which traffic to the specified 1181 * host is to be routed 1182 * @param hostAddress the IP address of the host to which the route is desired 1183 * @return {@code true} on success, {@code false} on failure 1184 * 1185 * @deprecated Deprecated in favor of the 1186 * {@link #requestNetwork(NetworkRequest, NetworkCallback)}, 1187 * {@link #bindProcessToNetwork} and {@link Network#getSocketFactory} API. 1188 * @removed 1189 */ 1190 public boolean requestRouteToHost(int networkType, int hostAddress) { 1191 return requestRouteToHostAddress(networkType, NetworkUtils.intToInetAddress(hostAddress)); 1192 } 1193 1194 /** 1195 * Ensure that a network route exists to deliver traffic to the specified 1196 * host via the specified network interface. An attempt to add a route that 1197 * already exists is ignored, but treated as successful. 1198 * <p>This method requires the caller to hold the permission 1199 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1200 * @param networkType the type of the network over which traffic to the specified 1201 * host is to be routed 1202 * @param hostAddress the IP address of the host to which the route is desired 1203 * @return {@code true} on success, {@code false} on failure 1204 * @hide 1205 * @deprecated Deprecated in favor of the {@link #requestNetwork} and 1206 * {@link #bindProcessToNetwork} API. 1207 * @removed 1208 */ 1209 public boolean requestRouteToHostAddress(int networkType, InetAddress hostAddress) { 1210 try { 1211 return mService.requestRouteToHostAddress(networkType, hostAddress.getAddress()); 1212 } catch (RemoteException e) { 1213 return false; 1214 } 1215 } 1216 1217 /** 1218 * Returns the value of the setting for background data usage. If false, 1219 * applications should not use the network if the application is not in the 1220 * foreground. Developers should respect this setting, and check the value 1221 * of this before performing any background data operations. 1222 * <p> 1223 * All applications that have background services that use the network 1224 * should listen to {@link #ACTION_BACKGROUND_DATA_SETTING_CHANGED}. 1225 * <p> 1226 * @deprecated As of {@link VERSION_CODES#ICE_CREAM_SANDWICH}, availability of 1227 * background data depends on several combined factors, and this method will 1228 * always return {@code true}. Instead, when background data is unavailable, 1229 * {@link #getActiveNetworkInfo()} will now appear disconnected. 1230 * 1231 * @return Whether background data usage is allowed. 1232 */ 1233 @Deprecated 1234 public boolean getBackgroundDataSetting() { 1235 // assume that background data is allowed; final authority is 1236 // NetworkInfo which may be blocked. 1237 return true; 1238 } 1239 1240 /** 1241 * Sets the value of the setting for background data usage. 1242 * 1243 * @param allowBackgroundData Whether an application should use data while 1244 * it is in the background. 1245 * 1246 * @attr ref android.Manifest.permission#CHANGE_BACKGROUND_DATA_SETTING 1247 * @see #getBackgroundDataSetting() 1248 * @hide 1249 */ 1250 @Deprecated 1251 public void setBackgroundDataSetting(boolean allowBackgroundData) { 1252 // ignored 1253 } 1254 1255 /** 1256 * Return quota status for the current active network, or {@code null} if no 1257 * network is active. Quota status can change rapidly, so these values 1258 * shouldn't be cached. 1259 * 1260 * <p>This method requires the caller to hold the permission 1261 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1262 * 1263 * @hide 1264 */ 1265 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1266 try { 1267 return mService.getActiveNetworkQuotaInfo(); 1268 } catch (RemoteException e) { 1269 return null; 1270 } 1271 } 1272 1273 /** 1274 * @hide 1275 * @deprecated Talk to TelephonyManager directly 1276 */ 1277 public boolean getMobileDataEnabled() { 1278 IBinder b = ServiceManager.getService(Context.TELEPHONY_SERVICE); 1279 if (b != null) { 1280 try { 1281 ITelephony it = ITelephony.Stub.asInterface(b); 1282 int subId = SubscriptionManager.getDefaultDataSubId(); 1283 Log.d("ConnectivityManager", "getMobileDataEnabled()+ subId=" + subId); 1284 boolean retVal = it.getDataEnabled(subId); 1285 Log.d("ConnectivityManager", "getMobileDataEnabled()- subId=" + subId 1286 + " retVal=" + retVal); 1287 return retVal; 1288 } catch (RemoteException e) { } 1289 } 1290 Log.d("ConnectivityManager", "getMobileDataEnabled()- remote exception retVal=false"); 1291 return false; 1292 } 1293 1294 /** 1295 * Callback for use with {@link ConnectivityManager#addDefaultNetworkActiveListener} 1296 * to find out when the system default network has gone in to a high power state. 1297 */ 1298 public interface OnNetworkActiveListener { 1299 /** 1300 * Called on the main thread of the process to report that the current data network 1301 * has become active, and it is now a good time to perform any pending network 1302 * operations. Note that this listener only tells you when the network becomes 1303 * active; if at any other time you want to know whether it is active (and thus okay 1304 * to initiate network traffic), you can retrieve its instantaneous state with 1305 * {@link ConnectivityManager#isDefaultNetworkActive}. 1306 */ 1307 public void onNetworkActive(); 1308 } 1309 1310 private INetworkManagementService getNetworkManagementService() { 1311 synchronized (this) { 1312 if (mNMService != null) { 1313 return mNMService; 1314 } 1315 IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE); 1316 mNMService = INetworkManagementService.Stub.asInterface(b); 1317 return mNMService; 1318 } 1319 } 1320 1321 private final ArrayMap<OnNetworkActiveListener, INetworkActivityListener> 1322 mNetworkActivityListeners 1323 = new ArrayMap<OnNetworkActiveListener, INetworkActivityListener>(); 1324 1325 /** 1326 * Start listening to reports when the system's default data network is active, meaning it is 1327 * a good time to perform network traffic. Use {@link #isDefaultNetworkActive()} 1328 * to determine the current state of the system's default network after registering the 1329 * listener. 1330 * <p> 1331 * If the process default network has been set with 1332 * {@link ConnectivityManager#bindProcessToNetwork} this function will not 1333 * reflect the process's default, but the system default. 1334 * 1335 * @param l The listener to be told when the network is active. 1336 */ 1337 public void addDefaultNetworkActiveListener(final OnNetworkActiveListener l) { 1338 INetworkActivityListener rl = new INetworkActivityListener.Stub() { 1339 @Override 1340 public void onNetworkActive() throws RemoteException { 1341 l.onNetworkActive(); 1342 } 1343 }; 1344 1345 try { 1346 getNetworkManagementService().registerNetworkActivityListener(rl); 1347 mNetworkActivityListeners.put(l, rl); 1348 } catch (RemoteException e) { 1349 } 1350 } 1351 1352 /** 1353 * Remove network active listener previously registered with 1354 * {@link #addDefaultNetworkActiveListener}. 1355 * 1356 * @param l Previously registered listener. 1357 */ 1358 public void removeDefaultNetworkActiveListener(OnNetworkActiveListener l) { 1359 INetworkActivityListener rl = mNetworkActivityListeners.get(l); 1360 if (rl == null) { 1361 throw new IllegalArgumentException("Listener not registered: " + l); 1362 } 1363 try { 1364 getNetworkManagementService().unregisterNetworkActivityListener(rl); 1365 } catch (RemoteException e) { 1366 } 1367 } 1368 1369 /** 1370 * Return whether the data network is currently active. An active network means that 1371 * it is currently in a high power state for performing data transmission. On some 1372 * types of networks, it may be expensive to move and stay in such a state, so it is 1373 * more power efficient to batch network traffic together when the radio is already in 1374 * this state. This method tells you whether right now is currently a good time to 1375 * initiate network traffic, as the network is already active. 1376 */ 1377 public boolean isDefaultNetworkActive() { 1378 try { 1379 return getNetworkManagementService().isNetworkActive(); 1380 } catch (RemoteException e) { 1381 } 1382 return false; 1383 } 1384 1385 /** 1386 * {@hide} 1387 */ 1388 public ConnectivityManager(IConnectivityManager service) { 1389 mService = checkNotNull(service, "missing IConnectivityManager"); 1390 sInstance = this; 1391 } 1392 1393 /** {@hide} */ 1394 public static ConnectivityManager from(Context context) { 1395 return (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); 1396 } 1397 1398 /** {@hide */ 1399 public static final void enforceTetherChangePermission(Context context) { 1400 if (context.getResources().getStringArray( 1401 com.android.internal.R.array.config_mobile_hotspot_provision_app).length == 2) { 1402 // Have a provisioning app - must only let system apps (which check this app) 1403 // turn on tethering 1404 context.enforceCallingOrSelfPermission( 1405 android.Manifest.permission.CONNECTIVITY_INTERNAL, "ConnectivityService"); 1406 } else { 1407 context.enforceCallingOrSelfPermission( 1408 android.Manifest.permission.CHANGE_NETWORK_STATE, "ConnectivityService"); 1409 } 1410 } 1411 1412 /** 1413 * @deprecated - use getSystemService. This is a kludge to support static access in certain 1414 * situations where a Context pointer is unavailable. 1415 * @hide 1416 */ 1417 static ConnectivityManager getInstanceOrNull() { 1418 return sInstance; 1419 } 1420 1421 /** 1422 * @deprecated - use getSystemService. This is a kludge to support static access in certain 1423 * situations where a Context pointer is unavailable. 1424 * @hide 1425 */ 1426 private static ConnectivityManager getInstance() { 1427 if (getInstanceOrNull() == null) { 1428 throw new IllegalStateException("No ConnectivityManager yet constructed"); 1429 } 1430 return getInstanceOrNull(); 1431 } 1432 1433 /** 1434 * Get the set of tetherable, available interfaces. This list is limited by 1435 * device configuration and current interface existence. 1436 * <p>This method requires the caller to hold the permission 1437 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1438 * 1439 * @return an array of 0 or more Strings of tetherable interface names. 1440 * 1441 * {@hide} 1442 */ 1443 public String[] getTetherableIfaces() { 1444 try { 1445 return mService.getTetherableIfaces(); 1446 } catch (RemoteException e) { 1447 return new String[0]; 1448 } 1449 } 1450 1451 /** 1452 * Get the set of tethered interfaces. 1453 * <p>This method requires the caller to hold the permission 1454 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1455 * 1456 * @return an array of 0 or more String of currently tethered interface names. 1457 * 1458 * {@hide} 1459 */ 1460 public String[] getTetheredIfaces() { 1461 try { 1462 return mService.getTetheredIfaces(); 1463 } catch (RemoteException e) { 1464 return new String[0]; 1465 } 1466 } 1467 1468 /** 1469 * Get the set of interface names which attempted to tether but 1470 * failed. Re-attempting to tether may cause them to reset to the Tethered 1471 * state. Alternatively, causing the interface to be destroyed and recreated 1472 * may cause them to reset to the available state. 1473 * {@link ConnectivityManager#getLastTetherError} can be used to get more 1474 * information on the cause of the errors. 1475 * <p>This method requires the caller to hold the permission 1476 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1477 * 1478 * @return an array of 0 or more String indicating the interface names 1479 * which failed to tether. 1480 * 1481 * {@hide} 1482 */ 1483 public String[] getTetheringErroredIfaces() { 1484 try { 1485 return mService.getTetheringErroredIfaces(); 1486 } catch (RemoteException e) { 1487 return new String[0]; 1488 } 1489 } 1490 1491 /** 1492 * Get the set of tethered dhcp ranges. 1493 * 1494 * @return an array of 0 or more {@code String} of tethered dhcp ranges. 1495 * {@hide} 1496 */ 1497 public String[] getTetheredDhcpRanges() { 1498 try { 1499 return mService.getTetheredDhcpRanges(); 1500 } catch (RemoteException e) { 1501 return new String[0]; 1502 } 1503 } 1504 1505 /** 1506 * Attempt to tether the named interface. This will setup a dhcp server 1507 * on the interface, forward and NAT IP packets and forward DNS requests 1508 * to the best active upstream network interface. Note that if no upstream 1509 * IP network interface is available, dhcp will still run and traffic will be 1510 * allowed between the tethered devices and this device, though upstream net 1511 * access will of course fail until an upstream network interface becomes 1512 * active. 1513 * <p>This method requires the caller to hold the permission 1514 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1515 * 1516 * @param iface the interface name to tether. 1517 * @return error a {@code TETHER_ERROR} value indicating success or failure type 1518 * 1519 * {@hide} 1520 */ 1521 public int tether(String iface) { 1522 try { 1523 return mService.tether(iface); 1524 } catch (RemoteException e) { 1525 return TETHER_ERROR_SERVICE_UNAVAIL; 1526 } 1527 } 1528 1529 /** 1530 * Stop tethering the named interface. 1531 * <p>This method requires the caller to hold the permission 1532 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1533 * 1534 * @param iface the interface name to untether. 1535 * @return error a {@code TETHER_ERROR} value indicating success or failure type 1536 * 1537 * {@hide} 1538 */ 1539 public int untether(String iface) { 1540 try { 1541 return mService.untether(iface); 1542 } catch (RemoteException e) { 1543 return TETHER_ERROR_SERVICE_UNAVAIL; 1544 } 1545 } 1546 1547 /** 1548 * Check if the device allows for tethering. It may be disabled via 1549 * {@code ro.tether.denied} system property, Settings.TETHER_SUPPORTED or 1550 * due to device configuration. 1551 * <p>This method requires the caller to hold the permission 1552 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1553 * 1554 * @return a boolean - {@code true} indicating Tethering is supported. 1555 * 1556 * {@hide} 1557 */ 1558 public boolean isTetheringSupported() { 1559 try { 1560 return mService.isTetheringSupported(); 1561 } catch (RemoteException e) { 1562 return false; 1563 } 1564 } 1565 1566 /** 1567 * Get the list of regular expressions that define any tetherable 1568 * USB network interfaces. If USB tethering is not supported by the 1569 * device, this list should be empty. 1570 * <p>This method requires the caller to hold the permission 1571 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1572 * 1573 * @return an array of 0 or more regular expression Strings defining 1574 * what interfaces are considered tetherable usb interfaces. 1575 * 1576 * {@hide} 1577 */ 1578 public String[] getTetherableUsbRegexs() { 1579 try { 1580 return mService.getTetherableUsbRegexs(); 1581 } catch (RemoteException e) { 1582 return new String[0]; 1583 } 1584 } 1585 1586 /** 1587 * Get the list of regular expressions that define any tetherable 1588 * Wifi network interfaces. If Wifi tethering is not supported by the 1589 * device, this list should be empty. 1590 * <p>This method requires the caller to hold the permission 1591 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1592 * 1593 * @return an array of 0 or more regular expression Strings defining 1594 * what interfaces are considered tetherable wifi interfaces. 1595 * 1596 * {@hide} 1597 */ 1598 public String[] getTetherableWifiRegexs() { 1599 try { 1600 return mService.getTetherableWifiRegexs(); 1601 } catch (RemoteException e) { 1602 return new String[0]; 1603 } 1604 } 1605 1606 /** 1607 * Get the list of regular expressions that define any tetherable 1608 * Bluetooth network interfaces. If Bluetooth tethering is not supported by the 1609 * device, this list should be empty. 1610 * <p>This method requires the caller to hold the permission 1611 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1612 * 1613 * @return an array of 0 or more regular expression Strings defining 1614 * what interfaces are considered tetherable bluetooth interfaces. 1615 * 1616 * {@hide} 1617 */ 1618 public String[] getTetherableBluetoothRegexs() { 1619 try { 1620 return mService.getTetherableBluetoothRegexs(); 1621 } catch (RemoteException e) { 1622 return new String[0]; 1623 } 1624 } 1625 1626 /** 1627 * Attempt to both alter the mode of USB and Tethering of USB. A 1628 * utility method to deal with some of the complexity of USB - will 1629 * attempt to switch to Rndis and subsequently tether the resulting 1630 * interface on {@code true} or turn off tethering and switch off 1631 * Rndis on {@code false}. 1632 * <p>This method requires the caller to hold the permission 1633 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1634 * 1635 * @param enable a boolean - {@code true} to enable tethering 1636 * @return error a {@code TETHER_ERROR} value indicating success or failure type 1637 * 1638 * {@hide} 1639 */ 1640 public int setUsbTethering(boolean enable) { 1641 try { 1642 return mService.setUsbTethering(enable); 1643 } catch (RemoteException e) { 1644 return TETHER_ERROR_SERVICE_UNAVAIL; 1645 } 1646 } 1647 1648 /** {@hide} */ 1649 public static final int TETHER_ERROR_NO_ERROR = 0; 1650 /** {@hide} */ 1651 public static final int TETHER_ERROR_UNKNOWN_IFACE = 1; 1652 /** {@hide} */ 1653 public static final int TETHER_ERROR_SERVICE_UNAVAIL = 2; 1654 /** {@hide} */ 1655 public static final int TETHER_ERROR_UNSUPPORTED = 3; 1656 /** {@hide} */ 1657 public static final int TETHER_ERROR_UNAVAIL_IFACE = 4; 1658 /** {@hide} */ 1659 public static final int TETHER_ERROR_MASTER_ERROR = 5; 1660 /** {@hide} */ 1661 public static final int TETHER_ERROR_TETHER_IFACE_ERROR = 6; 1662 /** {@hide} */ 1663 public static final int TETHER_ERROR_UNTETHER_IFACE_ERROR = 7; 1664 /** {@hide} */ 1665 public static final int TETHER_ERROR_ENABLE_NAT_ERROR = 8; 1666 /** {@hide} */ 1667 public static final int TETHER_ERROR_DISABLE_NAT_ERROR = 9; 1668 /** {@hide} */ 1669 public static final int TETHER_ERROR_IFACE_CFG_ERROR = 10; 1670 1671 /** 1672 * Get a more detailed error code after a Tethering or Untethering 1673 * request asynchronously failed. 1674 * <p>This method requires the caller to hold the permission 1675 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1676 * 1677 * @param iface The name of the interface of interest 1678 * @return error The error code of the last error tethering or untethering the named 1679 * interface 1680 * 1681 * {@hide} 1682 */ 1683 public int getLastTetherError(String iface) { 1684 try { 1685 return mService.getLastTetherError(iface); 1686 } catch (RemoteException e) { 1687 return TETHER_ERROR_SERVICE_UNAVAIL; 1688 } 1689 } 1690 1691 /** 1692 * Report network connectivity status. This is currently used only 1693 * to alter status bar UI. 1694 * <p>This method requires the caller to hold the permission 1695 * {@link android.Manifest.permission#STATUS_BAR}. 1696 * 1697 * @param networkType The type of network you want to report on 1698 * @param percentage The quality of the connection 0 is bad, 100 is good 1699 * {@hide} 1700 */ 1701 public void reportInetCondition(int networkType, int percentage) { 1702 try { 1703 mService.reportInetCondition(networkType, percentage); 1704 } catch (RemoteException e) { 1705 } 1706 } 1707 1708 /** 1709 * Report a problem network to the framework. This provides a hint to the system 1710 * that there might be connectivity problems on this network and may cause 1711 * the framework to re-evaluate network connectivity and/or switch to another 1712 * network. 1713 * 1714 * @param network The {@link Network} the application was attempting to use 1715 * or {@code null} to indicate the current default network. 1716 * @deprecated Use {@link #reportNetworkConnectivity} which allows reporting both 1717 * working and non-working connectivity. 1718 */ 1719 public void reportBadNetwork(Network network) { 1720 try { 1721 // One of these will be ignored because it matches system's current state. 1722 // The other will trigger the necessary reevaluation. 1723 mService.reportNetworkConnectivity(network, true); 1724 mService.reportNetworkConnectivity(network, false); 1725 } catch (RemoteException e) { 1726 } 1727 } 1728 1729 /** 1730 * Report to the framework whether a network has working connectivity. 1731 * This provides a hint to the system that a particular network is providing 1732 * working connectivity or not. In response the framework may re-evaluate 1733 * the network's connectivity and might take further action thereafter. 1734 * 1735 * @param network The {@link Network} the application was attempting to use 1736 * or {@code null} to indicate the current default network. 1737 * @param hasConnectivity {@code true} if the application was able to successfully access the 1738 * Internet using {@code network} or {@code false} if not. 1739 */ 1740 public void reportNetworkConnectivity(Network network, boolean hasConnectivity) { 1741 try { 1742 mService.reportNetworkConnectivity(network, hasConnectivity); 1743 } catch (RemoteException e) { 1744 } 1745 } 1746 1747 /** 1748 * Set a network-independent global http proxy. This is not normally what you want 1749 * for typical HTTP proxies - they are general network dependent. However if you're 1750 * doing something unusual like general internal filtering this may be useful. On 1751 * a private network where the proxy is not accessible, you may break HTTP using this. 1752 * <p>This method requires the caller to hold the permission 1753 * android.Manifest.permission#CONNECTIVITY_INTERNAL. 1754 * 1755 * @param p A {@link ProxyInfo} object defining the new global 1756 * HTTP proxy. A {@code null} value will clear the global HTTP proxy. 1757 * @hide 1758 */ 1759 public void setGlobalProxy(ProxyInfo p) { 1760 try { 1761 mService.setGlobalProxy(p); 1762 } catch (RemoteException e) { 1763 } 1764 } 1765 1766 /** 1767 * Retrieve any network-independent global HTTP proxy. 1768 * 1769 * @return {@link ProxyInfo} for the current global HTTP proxy or {@code null} 1770 * if no global HTTP proxy is set. 1771 * @hide 1772 */ 1773 public ProxyInfo getGlobalProxy() { 1774 try { 1775 return mService.getGlobalProxy(); 1776 } catch (RemoteException e) { 1777 return null; 1778 } 1779 } 1780 1781 /** 1782 * Retrieve the global HTTP proxy, or if no global HTTP proxy is set, a 1783 * network-specific HTTP proxy. If {@code network} is null, the 1784 * network-specific proxy returned is the proxy of the default active 1785 * network. 1786 * 1787 * @return {@link ProxyInfo} for the current global HTTP proxy, or if no 1788 * global HTTP proxy is set, {@code ProxyInfo} for {@code network}, 1789 * or when {@code network} is {@code null}, 1790 * the {@code ProxyInfo} for the default active network. Returns 1791 * {@code null} when no proxy applies or the caller doesn't have 1792 * permission to use {@code network}. 1793 * @hide 1794 */ 1795 public ProxyInfo getProxyForNetwork(Network network) { 1796 try { 1797 return mService.getProxyForNetwork(network); 1798 } catch (RemoteException e) { 1799 return null; 1800 } 1801 } 1802 1803 /** 1804 * Get the current default HTTP proxy settings. If a global proxy is set it will be returned, 1805 * otherwise if this process is bound to a {@link Network} using 1806 * {@link #bindProcessToNetwork} then that {@code Network}'s proxy is returned, otherwise 1807 * the default network's proxy is returned. 1808 * 1809 * @return the {@link ProxyInfo} for the current HTTP proxy, or {@code null} if no 1810 * HTTP proxy is active. 1811 */ 1812 public ProxyInfo getDefaultProxy() { 1813 return getProxyForNetwork(getBoundNetworkForProcess()); 1814 } 1815 1816 /** 1817 * Returns true if the hardware supports the given network type 1818 * else it returns false. This doesn't indicate we have coverage 1819 * or are authorized onto a network, just whether or not the 1820 * hardware supports it. For example a GSM phone without a SIM 1821 * should still return {@code true} for mobile data, but a wifi only 1822 * tablet would return {@code false}. 1823 * <p>This method requires the caller to hold the permission 1824 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1825 * 1826 * @param networkType The network type we'd like to check 1827 * @return {@code true} if supported, else {@code false} 1828 * 1829 * @hide 1830 */ 1831 public boolean isNetworkSupported(int networkType) { 1832 try { 1833 return mService.isNetworkSupported(networkType); 1834 } catch (RemoteException e) {} 1835 return false; 1836 } 1837 1838 /** 1839 * Returns if the currently active data network is metered. A network is 1840 * classified as metered when the user is sensitive to heavy data usage on 1841 * that connection due to monetary costs, data limitations or 1842 * battery/performance issues. You should check this before doing large 1843 * data transfers, and warn the user or delay the operation until another 1844 * network is available. 1845 * <p>This method requires the caller to hold the permission 1846 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1847 * 1848 * @return {@code true} if large transfers should be avoided, otherwise 1849 * {@code false}. 1850 */ 1851 public boolean isActiveNetworkMetered() { 1852 try { 1853 return mService.isActiveNetworkMetered(); 1854 } catch (RemoteException e) { 1855 return false; 1856 } 1857 } 1858 1859 /** 1860 * If the LockdownVpn mechanism is enabled, updates the vpn 1861 * with a reload of its profile. 1862 * 1863 * @return a boolean with {@code} indicating success 1864 * 1865 * <p>This method can only be called by the system UID 1866 * {@hide} 1867 */ 1868 public boolean updateLockdownVpn() { 1869 try { 1870 return mService.updateLockdownVpn(); 1871 } catch (RemoteException e) { 1872 return false; 1873 } 1874 } 1875 1876 /** 1877 * Check mobile provisioning. 1878 * 1879 * @param suggestedTimeOutMs, timeout in milliseconds 1880 * 1881 * @return time out that will be used, maybe less that suggestedTimeOutMs 1882 * -1 if an error. 1883 * 1884 * {@hide} 1885 */ 1886 public int checkMobileProvisioning(int suggestedTimeOutMs) { 1887 int timeOutMs = -1; 1888 try { 1889 timeOutMs = mService.checkMobileProvisioning(suggestedTimeOutMs); 1890 } catch (RemoteException e) { 1891 } 1892 return timeOutMs; 1893 } 1894 1895 /** 1896 * Get the mobile provisioning url. 1897 * {@hide} 1898 */ 1899 public String getMobileProvisioningUrl() { 1900 try { 1901 return mService.getMobileProvisioningUrl(); 1902 } catch (RemoteException e) { 1903 } 1904 return null; 1905 } 1906 1907 /** 1908 * Set sign in error notification to visible or in visible 1909 * 1910 * @param visible 1911 * @param networkType 1912 * 1913 * {@hide} 1914 * @deprecated Doesn't properly deal with multiple connected networks of the same type. 1915 */ 1916 public void setProvisioningNotificationVisible(boolean visible, int networkType, 1917 String action) { 1918 try { 1919 mService.setProvisioningNotificationVisible(visible, networkType, action); 1920 } catch (RemoteException e) { 1921 } 1922 } 1923 1924 /** 1925 * Set the value for enabling/disabling airplane mode 1926 * <p>This method requires the caller to hold the permission 1927 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL}. 1928 * 1929 * @param enable whether to enable airplane mode or not 1930 * 1931 * @hide 1932 */ 1933 public void setAirplaneMode(boolean enable) { 1934 try { 1935 mService.setAirplaneMode(enable); 1936 } catch (RemoteException e) { 1937 } 1938 } 1939 1940 /** {@hide} */ 1941 public void registerNetworkFactory(Messenger messenger, String name) { 1942 try { 1943 mService.registerNetworkFactory(messenger, name); 1944 } catch (RemoteException e) { } 1945 } 1946 1947 /** {@hide} */ 1948 public void unregisterNetworkFactory(Messenger messenger) { 1949 try { 1950 mService.unregisterNetworkFactory(messenger); 1951 } catch (RemoteException e) { } 1952 } 1953 1954 /** 1955 * @hide 1956 * Register a NetworkAgent with ConnectivityService. 1957 * @return NetID corresponding to NetworkAgent. 1958 */ 1959 public int registerNetworkAgent(Messenger messenger, NetworkInfo ni, LinkProperties lp, 1960 NetworkCapabilities nc, int score, NetworkMisc misc) { 1961 try { 1962 return mService.registerNetworkAgent(messenger, ni, lp, nc, score, misc); 1963 } catch (RemoteException e) { 1964 return NETID_UNSET; 1965 } 1966 } 1967 1968 /** 1969 * Base class for NetworkRequest callbacks. Used for notifications about network 1970 * changes. Should be extended by applications wanting notifications. 1971 */ 1972 public static class NetworkCallback { 1973 /** 1974 * Called when the framework connects to a new network to evaluate whether it satisfies this 1975 * request. If evaluation succeeds, this callback may be followed by an {@link #onAvailable} 1976 * callback. There is no guarantee that this new network will satisfy any requests, or that 1977 * the network will stay connected for longer than the time necessary to evaluate it. 1978 * <p> 1979 * Most applications <b>should not</b> act on this callback, and should instead use 1980 * {@link #onAvailable}. This callback is intended for use by applications that can assist 1981 * the framework in properly evaluating the network — for example, an application that 1982 * can automatically log in to a captive portal without user intervention. 1983 * 1984 * @param network The {@link Network} of the network that is being evaluated. 1985 * 1986 * @hide 1987 */ 1988 public void onPreCheck(Network network) {} 1989 1990 /** 1991 * Called when the framework connects and has declared a new network ready for use. 1992 * This callback may be called more than once if the {@link Network} that is 1993 * satisfying the request changes. 1994 * 1995 * @param network The {@link Network} of the satisfying network. 1996 */ 1997 public void onAvailable(Network network) {} 1998 1999 /** 2000 * Called when the network is about to be disconnected. Often paired with an 2001 * {@link NetworkCallback#onAvailable} call with the new replacement network 2002 * for graceful handover. This may not be called if we have a hard loss 2003 * (loss without warning). This may be followed by either a 2004 * {@link NetworkCallback#onLost} call or a 2005 * {@link NetworkCallback#onAvailable} call for this network depending 2006 * on whether we lose or regain it. 2007 * 2008 * @param network The {@link Network} that is about to be disconnected. 2009 * @param maxMsToLive The time in ms the framework will attempt to keep the 2010 * network connected. Note that the network may suffer a 2011 * hard loss at any time. 2012 */ 2013 public void onLosing(Network network, int maxMsToLive) {} 2014 2015 /** 2016 * Called when the framework has a hard loss of the network or when the 2017 * graceful failure ends. 2018 * 2019 * @param network The {@link Network} lost. 2020 */ 2021 public void onLost(Network network) {} 2022 2023 /** 2024 * Called if no network is found in the given timeout time. If no timeout is given, 2025 * this will not be called. 2026 * @hide 2027 */ 2028 public void onUnavailable() {} 2029 2030 /** 2031 * Called when the network the framework connected to for this request 2032 * changes capabilities but still satisfies the stated need. 2033 * 2034 * @param network The {@link Network} whose capabilities have changed. 2035 * @param networkCapabilities The new {@link android.net.NetworkCapabilities} for this network. 2036 */ 2037 public void onCapabilitiesChanged(Network network, 2038 NetworkCapabilities networkCapabilities) {} 2039 2040 /** 2041 * Called when the network the framework connected to for this request 2042 * changes {@link LinkProperties}. 2043 * 2044 * @param network The {@link Network} whose link properties have changed. 2045 * @param linkProperties The new {@link LinkProperties} for this network. 2046 */ 2047 public void onLinkPropertiesChanged(Network network, LinkProperties linkProperties) {} 2048 2049 /** 2050 * Called when the network the framework connected to for this request 2051 * goes into {@link NetworkInfo.DetailedState.SUSPENDED}. 2052 * This generally means that while the TCP connections are still live, 2053 * temporarily network data fails to transfer. Specifically this is used 2054 * on cellular networks to mask temporary outages when driving through 2055 * a tunnel, etc. 2056 * @hide 2057 */ 2058 public void onNetworkSuspended(Network network) {} 2059 2060 /** 2061 * Called when the network the framework connected to for this request 2062 * returns from a {@link NetworkInfo.DetailedState.SUSPENDED} state. 2063 * This should always be preceeded by a matching {@code onNetworkSuspended} 2064 * call. 2065 * @hide 2066 */ 2067 public void onNetworkResumed(Network network) {} 2068 2069 private NetworkRequest networkRequest; 2070 } 2071 2072 private static final int BASE = Protocol.BASE_CONNECTIVITY_MANAGER; 2073 /** @hide */ 2074 public static final int CALLBACK_PRECHECK = BASE + 1; 2075 /** @hide */ 2076 public static final int CALLBACK_AVAILABLE = BASE + 2; 2077 /** @hide arg1 = TTL */ 2078 public static final int CALLBACK_LOSING = BASE + 3; 2079 /** @hide */ 2080 public static final int CALLBACK_LOST = BASE + 4; 2081 /** @hide */ 2082 public static final int CALLBACK_UNAVAIL = BASE + 5; 2083 /** @hide */ 2084 public static final int CALLBACK_CAP_CHANGED = BASE + 6; 2085 /** @hide */ 2086 public static final int CALLBACK_IP_CHANGED = BASE + 7; 2087 /** @hide */ 2088 public static final int CALLBACK_RELEASED = BASE + 8; 2089 /** @hide */ 2090 public static final int CALLBACK_EXIT = BASE + 9; 2091 /** @hide obj = NetworkCapabilities, arg1 = seq number */ 2092 private static final int EXPIRE_LEGACY_REQUEST = BASE + 10; 2093 /** @hide */ 2094 public static final int CALLBACK_SUSPENDED = BASE + 11; 2095 /** @hide */ 2096 public static final int CALLBACK_RESUMED = BASE + 12; 2097 2098 private class CallbackHandler extends Handler { 2099 private final HashMap<NetworkRequest, NetworkCallback>mCallbackMap; 2100 private final AtomicInteger mRefCount; 2101 private static final String TAG = "ConnectivityManager.CallbackHandler"; 2102 private final ConnectivityManager mCm; 2103 2104 CallbackHandler(Looper looper, HashMap<NetworkRequest, NetworkCallback>callbackMap, 2105 AtomicInteger refCount, ConnectivityManager cm) { 2106 super(looper); 2107 mCallbackMap = callbackMap; 2108 mRefCount = refCount; 2109 mCm = cm; 2110 } 2111 2112 @Override 2113 public void handleMessage(Message message) { 2114 Log.d(TAG, "CM callback handler got msg " + message.what); 2115 NetworkRequest request = (NetworkRequest) getObject(message, NetworkRequest.class); 2116 Network network = (Network) getObject(message, Network.class); 2117 switch (message.what) { 2118 case CALLBACK_PRECHECK: { 2119 NetworkCallback callback = getCallback(request, "PRECHECK"); 2120 if (callback != null) { 2121 callback.onPreCheck(network); 2122 } 2123 break; 2124 } 2125 case CALLBACK_AVAILABLE: { 2126 NetworkCallback callback = getCallback(request, "AVAILABLE"); 2127 if (callback != null) { 2128 callback.onAvailable(network); 2129 } 2130 break; 2131 } 2132 case CALLBACK_LOSING: { 2133 NetworkCallback callback = getCallback(request, "LOSING"); 2134 if (callback != null) { 2135 callback.onLosing(network, message.arg1); 2136 } 2137 break; 2138 } 2139 case CALLBACK_LOST: { 2140 NetworkCallback callback = getCallback(request, "LOST"); 2141 if (callback != null) { 2142 callback.onLost(network); 2143 } 2144 break; 2145 } 2146 case CALLBACK_UNAVAIL: { 2147 NetworkCallback callback = getCallback(request, "UNAVAIL"); 2148 if (callback != null) { 2149 callback.onUnavailable(); 2150 } 2151 break; 2152 } 2153 case CALLBACK_CAP_CHANGED: { 2154 NetworkCallback callback = getCallback(request, "CAP_CHANGED"); 2155 if (callback != null) { 2156 NetworkCapabilities cap = (NetworkCapabilities)getObject(message, 2157 NetworkCapabilities.class); 2158 2159 callback.onCapabilitiesChanged(network, cap); 2160 } 2161 break; 2162 } 2163 case CALLBACK_IP_CHANGED: { 2164 NetworkCallback callback = getCallback(request, "IP_CHANGED"); 2165 if (callback != null) { 2166 LinkProperties lp = (LinkProperties)getObject(message, 2167 LinkProperties.class); 2168 2169 callback.onLinkPropertiesChanged(network, lp); 2170 } 2171 break; 2172 } 2173 case CALLBACK_SUSPENDED: { 2174 NetworkCallback callback = getCallback(request, "SUSPENDED"); 2175 if (callback != null) { 2176 callback.onNetworkSuspended(network); 2177 } 2178 break; 2179 } 2180 case CALLBACK_RESUMED: { 2181 NetworkCallback callback = getCallback(request, "RESUMED"); 2182 if (callback != null) { 2183 callback.onNetworkResumed(network); 2184 } 2185 break; 2186 } 2187 case CALLBACK_RELEASED: { 2188 NetworkCallback callback = null; 2189 synchronized(mCallbackMap) { 2190 callback = mCallbackMap.remove(request); 2191 } 2192 if (callback != null) { 2193 synchronized(mRefCount) { 2194 if (mRefCount.decrementAndGet() == 0) { 2195 getLooper().quit(); 2196 } 2197 } 2198 } else { 2199 Log.e(TAG, "callback not found for RELEASED message"); 2200 } 2201 break; 2202 } 2203 case CALLBACK_EXIT: { 2204 Log.d(TAG, "Listener quitting"); 2205 getLooper().quit(); 2206 break; 2207 } 2208 case EXPIRE_LEGACY_REQUEST: { 2209 expireRequest((NetworkCapabilities)message.obj, message.arg1); 2210 break; 2211 } 2212 } 2213 } 2214 2215 private Object getObject(Message msg, Class c) { 2216 return msg.getData().getParcelable(c.getSimpleName()); 2217 } 2218 2219 private NetworkCallback getCallback(NetworkRequest req, String name) { 2220 NetworkCallback callback; 2221 synchronized(mCallbackMap) { 2222 callback = mCallbackMap.get(req); 2223 } 2224 if (callback == null) { 2225 Log.e(TAG, "callback not found for " + name + " message"); 2226 } 2227 return callback; 2228 } 2229 } 2230 2231 private void incCallbackHandlerRefCount() { 2232 synchronized(sCallbackRefCount) { 2233 if (sCallbackRefCount.incrementAndGet() == 1) { 2234 // TODO - switch this over to a ManagerThread or expire it when done 2235 HandlerThread callbackThread = new HandlerThread("ConnectivityManager"); 2236 callbackThread.start(); 2237 sCallbackHandler = new CallbackHandler(callbackThread.getLooper(), 2238 sNetworkCallback, sCallbackRefCount, this); 2239 } 2240 } 2241 } 2242 2243 private void decCallbackHandlerRefCount() { 2244 synchronized(sCallbackRefCount) { 2245 if (sCallbackRefCount.decrementAndGet() == 0) { 2246 sCallbackHandler.obtainMessage(CALLBACK_EXIT).sendToTarget(); 2247 sCallbackHandler = null; 2248 } 2249 } 2250 } 2251 2252 static final HashMap<NetworkRequest, NetworkCallback> sNetworkCallback = 2253 new HashMap<NetworkRequest, NetworkCallback>(); 2254 static final AtomicInteger sCallbackRefCount = new AtomicInteger(0); 2255 static CallbackHandler sCallbackHandler = null; 2256 2257 private final static int LISTEN = 1; 2258 private final static int REQUEST = 2; 2259 2260 private NetworkRequest sendRequestForNetwork(NetworkCapabilities need, 2261 NetworkCallback networkCallback, int timeoutSec, int action, 2262 int legacyType) { 2263 if (networkCallback == null) { 2264 throw new IllegalArgumentException("null NetworkCallback"); 2265 } 2266 if (need == null) throw new IllegalArgumentException("null NetworkCapabilities"); 2267 try { 2268 incCallbackHandlerRefCount(); 2269 synchronized(sNetworkCallback) { 2270 if (action == LISTEN) { 2271 networkCallback.networkRequest = mService.listenForNetwork(need, 2272 new Messenger(sCallbackHandler), new Binder()); 2273 } else { 2274 networkCallback.networkRequest = mService.requestNetwork(need, 2275 new Messenger(sCallbackHandler), timeoutSec, new Binder(), legacyType); 2276 } 2277 if (networkCallback.networkRequest != null) { 2278 sNetworkCallback.put(networkCallback.networkRequest, networkCallback); 2279 } 2280 } 2281 } catch (RemoteException e) {} 2282 if (networkCallback.networkRequest == null) decCallbackHandlerRefCount(); 2283 return networkCallback.networkRequest; 2284 } 2285 2286 /** 2287 * Request a network to satisfy a set of {@link android.net.NetworkCapabilities}. 2288 * 2289 * This {@link NetworkRequest} will live until released via 2290 * {@link #unregisterNetworkCallback} or the calling application exits. 2291 * Status of the request can be followed by listening to the various 2292 * callbacks described in {@link NetworkCallback}. The {@link Network} 2293 * can be used to direct traffic to the network. 2294 * <p>It is presently unsupported to request a network with mutable 2295 * {@link NetworkCapabilities} such as 2296 * {@link NetworkCapabilities#NET_CAPABILITY_VALIDATED} or 2297 * {@link NetworkCapabilities#NET_CAPABILITY_CAPTIVE_PORTAL} 2298 * as these {@code NetworkCapabilities} represent states that a particular 2299 * network may never attain, and whether a network will attain these states 2300 * is unknown prior to bringing up the network so the framework does not 2301 * know how to go about satisfing a request with these capabilities. 2302 * <p>This method requires the caller to hold the permission 2303 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 2304 * 2305 * @param request {@link NetworkRequest} describing this request. 2306 * @param networkCallback The {@link NetworkCallback} to be utilized for this 2307 * request. Note the callback must not be shared - they 2308 * uniquely specify this request. 2309 * @throws IllegalArgumentException if {@code request} specifies any mutable 2310 * {@code NetworkCapabilities}. 2311 */ 2312 public void requestNetwork(NetworkRequest request, NetworkCallback networkCallback) { 2313 sendRequestForNetwork(request.networkCapabilities, networkCallback, 0, 2314 REQUEST, inferLegacyTypeForNetworkCapabilities(request.networkCapabilities)); 2315 } 2316 2317 /** 2318 * Request a network to satisfy a set of {@link android.net.NetworkCapabilities}, limited 2319 * by a timeout. 2320 * 2321 * This function behaves identically to the non-timedout version, but if a suitable 2322 * network is not found within the given time (in milliseconds) the 2323 * {@link NetworkCallback#unavailable} callback is called. The request must 2324 * still be released normally by calling {@link releaseNetworkRequest}. 2325 * <p>This method requires the caller to hold the permission 2326 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 2327 * @param request {@link NetworkRequest} describing this request. 2328 * @param networkCallback The callbacks to be utilized for this request. Note 2329 * the callbacks must not be shared - they uniquely specify 2330 * this request. 2331 * @param timeoutMs The time in milliseconds to attempt looking for a suitable network 2332 * before {@link NetworkCallback#unavailable} is called. 2333 * @hide 2334 */ 2335 public void requestNetwork(NetworkRequest request, NetworkCallback networkCallback, 2336 int timeoutMs) { 2337 sendRequestForNetwork(request.networkCapabilities, networkCallback, timeoutMs, 2338 REQUEST, inferLegacyTypeForNetworkCapabilities(request.networkCapabilities)); 2339 } 2340 2341 /** 2342 * The maximum number of milliseconds the framework will look for a suitable network 2343 * during a timeout-equiped call to {@link requestNetwork}. 2344 * {@hide} 2345 */ 2346 public final static int MAX_NETWORK_REQUEST_TIMEOUT_MS = 100 * 60 * 1000; 2347 2348 /** 2349 * The lookup key for a {@link Network} object included with the intent after 2350 * successfully finding a network for the applications request. Retrieve it with 2351 * {@link android.content.Intent#getParcelableExtra(String)}. 2352 * <p> 2353 * Note that if you intend to invoke {@link Network#openConnection(java.net.URL)} 2354 * then you must get a ConnectivityManager instance before doing so. 2355 */ 2356 public static final String EXTRA_NETWORK = "android.net.extra.NETWORK"; 2357 2358 /** 2359 * The lookup key for a {@link NetworkRequest} object included with the intent after 2360 * successfully finding a network for the applications request. Retrieve it with 2361 * {@link android.content.Intent#getParcelableExtra(String)}. 2362 */ 2363 public static final String EXTRA_NETWORK_REQUEST = "android.net.extra.NETWORK_REQUEST"; 2364 2365 2366 /** 2367 * Request a network to satisfy a set of {@link android.net.NetworkCapabilities}. 2368 * 2369 * This function behaves identically to the version that takes a NetworkCallback, but instead 2370 * of {@link NetworkCallback} a {@link PendingIntent} is used. This means 2371 * the request may outlive the calling application and get called back when a suitable 2372 * network is found. 2373 * <p> 2374 * The operation is an Intent broadcast that goes to a broadcast receiver that 2375 * you registered with {@link Context#registerReceiver} or through the 2376 * <receiver> tag in an AndroidManifest.xml file 2377 * <p> 2378 * The operation Intent is delivered with two extras, a {@link Network} typed 2379 * extra called {@link #EXTRA_NETWORK} and a {@link NetworkRequest} 2380 * typed extra called {@link #EXTRA_NETWORK_REQUEST} containing 2381 * the original requests parameters. It is important to create a new, 2382 * {@link NetworkCallback} based request before completing the processing of the 2383 * Intent to reserve the network or it will be released shortly after the Intent 2384 * is processed. 2385 * <p> 2386 * If there is already a request for this Intent registered (with the equality of 2387 * two Intents defined by {@link Intent#filterEquals}), then it will be removed and 2388 * replaced by this one, effectively releasing the previous {@link NetworkRequest}. 2389 * <p> 2390 * The request may be released normally by calling 2391 * {@link #releaseNetworkRequest(android.app.PendingIntent)}. 2392 * <p>It is presently unsupported to request a network with either 2393 * {@link NetworkCapabilities#NET_CAPABILITY_VALIDATED} or 2394 * {@link NetworkCapabilities#NET_CAPABILITY_CAPTIVE_PORTAL} 2395 * as these {@code NetworkCapabilities} represent states that a particular 2396 * network may never attain, and whether a network will attain these states 2397 * is unknown prior to bringing up the network so the framework does not 2398 * know how to go about satisfing a request with these capabilities. 2399 * <p>This method requires the caller to hold the permission 2400 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 2401 * @param request {@link NetworkRequest} describing this request. 2402 * @param operation Action to perform when the network is available (corresponds 2403 * to the {@link NetworkCallback#onAvailable} call. Typically 2404 * comes from {@link PendingIntent#getBroadcast}. Cannot be null. 2405 * @throws IllegalArgumentException if {@code request} contains either 2406 * {@link NetworkCapabilities#NET_CAPABILITY_VALIDATED} or 2407 * {@link NetworkCapabilities#NET_CAPABILITY_CAPTIVE_PORTAL}. 2408 */ 2409 public void requestNetwork(NetworkRequest request, PendingIntent operation) { 2410 checkPendingIntent(operation); 2411 try { 2412 mService.pendingRequestForNetwork(request.networkCapabilities, operation); 2413 } catch (RemoteException e) {} 2414 } 2415 2416 /** 2417 * Removes a request made via {@link #requestNetwork(NetworkRequest, android.app.PendingIntent)} 2418 * <p> 2419 * This method has the same behavior as {@link #unregisterNetworkCallback} with respect to 2420 * releasing network resources and disconnecting. 2421 * 2422 * @param operation A PendingIntent equal (as defined by {@link Intent#filterEquals}) to the 2423 * PendingIntent passed to 2424 * {@link #requestNetwork(NetworkRequest, android.app.PendingIntent)} with the 2425 * corresponding NetworkRequest you'd like to remove. Cannot be null. 2426 */ 2427 public void releaseNetworkRequest(PendingIntent operation) { 2428 checkPendingIntent(operation); 2429 try { 2430 mService.releasePendingNetworkRequest(operation); 2431 } catch (RemoteException e) {} 2432 } 2433 2434 private void checkPendingIntent(PendingIntent intent) { 2435 if (intent == null) { 2436 throw new IllegalArgumentException("PendingIntent cannot be null."); 2437 } 2438 } 2439 2440 /** 2441 * Registers to receive notifications about all networks which satisfy the given 2442 * {@link NetworkRequest}. The callbacks will continue to be called until 2443 * either the application exits or {@link #unregisterNetworkCallback} is called 2444 * <p>This method requires the caller to hold the permission 2445 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 2446 * 2447 * @param request {@link NetworkRequest} describing this request. 2448 * @param networkCallback The {@link NetworkCallback} that the system will call as suitable 2449 * networks change state. 2450 */ 2451 public void registerNetworkCallback(NetworkRequest request, NetworkCallback networkCallback) { 2452 sendRequestForNetwork(request.networkCapabilities, networkCallback, 0, LISTEN, TYPE_NONE); 2453 } 2454 2455 /** 2456 * Registers a PendingIntent to be sent when a network is available which satisfies the given 2457 * {@link NetworkRequest}. 2458 * 2459 * This function behaves identically to the version that takes a NetworkCallback, but instead 2460 * of {@link NetworkCallback} a {@link PendingIntent} is used. This means 2461 * the request may outlive the calling application and get called back when a suitable 2462 * network is found. 2463 * <p> 2464 * The operation is an Intent broadcast that goes to a broadcast receiver that 2465 * you registered with {@link Context#registerReceiver} or through the 2466 * <receiver> tag in an AndroidManifest.xml file 2467 * <p> 2468 * The operation Intent is delivered with two extras, a {@link Network} typed 2469 * extra called {@link #EXTRA_NETWORK} and a {@link NetworkRequest} 2470 * typed extra called {@link #EXTRA_NETWORK_REQUEST} containing 2471 * the original requests parameters. 2472 * <p> 2473 * If there is already a request for this Intent registered (with the equality of 2474 * two Intents defined by {@link Intent#filterEquals}), then it will be removed and 2475 * replaced by this one, effectively releasing the previous {@link NetworkRequest}. 2476 * <p> 2477 * The request may be released normally by calling 2478 * {@link #unregisterNetworkCallback(android.app.PendingIntent)}. 2479 * <p>This method requires the caller to hold the permission 2480 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 2481 * @param request {@link NetworkRequest} describing this request. 2482 * @param operation Action to perform when the network is available (corresponds 2483 * to the {@link NetworkCallback#onAvailable} call. Typically 2484 * comes from {@link PendingIntent#getBroadcast}. Cannot be null. 2485 */ 2486 public void registerNetworkCallback(NetworkRequest request, PendingIntent operation) { 2487 checkPendingIntent(operation); 2488 try { 2489 mService.pendingListenForNetwork(request.networkCapabilities, operation); 2490 } catch (RemoteException e) {} 2491 } 2492 2493 /** 2494 * Requests bandwidth update for a given {@link Network} and returns whether the update request 2495 * is accepted by ConnectivityService. Once accepted, ConnectivityService will poll underlying 2496 * network connection for updated bandwidth information. The caller will be notified via 2497 * {@link ConnectivityManager.NetworkCallback} if there is an update. Notice that this 2498 * method assumes that the caller has previously called {@link #registerNetworkCallback} to 2499 * listen for network changes. 2500 * 2501 * @param network {@link Network} specifying which network you're interested. 2502 * @return {@code true} on success, {@code false} if the {@link Network} is no longer valid. 2503 */ 2504 public boolean requestBandwidthUpdate(Network network) { 2505 try { 2506 return mService.requestBandwidthUpdate(network); 2507 } catch (RemoteException e) { 2508 return false; 2509 } 2510 } 2511 2512 /** 2513 * Unregisters callbacks about and possibly releases networks originating from 2514 * {@link #requestNetwork(NetworkRequest, NetworkCallback)} and {@link #registerNetworkCallback} 2515 * calls. If the given {@code NetworkCallback} had previously been used with 2516 * {@code #requestNetwork}, any networks that had been connected to only to satisfy that request 2517 * will be disconnected. 2518 * 2519 * @param networkCallback The {@link NetworkCallback} used when making the request. 2520 */ 2521 public void unregisterNetworkCallback(NetworkCallback networkCallback) { 2522 if (networkCallback == null || networkCallback.networkRequest == null || 2523 networkCallback.networkRequest.requestId == REQUEST_ID_UNSET) { 2524 throw new IllegalArgumentException("Invalid NetworkCallback"); 2525 } 2526 try { 2527 mService.releaseNetworkRequest(networkCallback.networkRequest); 2528 } catch (RemoteException e) {} 2529 } 2530 2531 /** 2532 * Unregisters a callback previously registered via 2533 * {@link #registerNetworkCallback(NetworkRequest, android.app.PendingIntent)}. 2534 * 2535 * @param operation A PendingIntent equal (as defined by {@link Intent#filterEquals}) to the 2536 * PendingIntent passed to 2537 * {@link #registerNetworkCallback(NetworkRequest, android.app.PendingIntent)}. 2538 * Cannot be null. 2539 */ 2540 public void unregisterNetworkCallback(PendingIntent operation) { 2541 releaseNetworkRequest(operation); 2542 } 2543 2544 /** 2545 * Informs the system whether it should switch to {@code network} regardless of whether it is 2546 * validated or not. If {@code accept} is true, and the network was explicitly selected by the 2547 * user (e.g., by selecting a Wi-Fi network in the Settings app), then the network will become 2548 * the system default network regardless of any other network that's currently connected. If 2549 * {@code always} is true, then the choice is remembered, so that the next time the user 2550 * connects to this network, the system will switch to it. 2551 * 2552 * <p>This method requires the caller to hold the permission 2553 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL} 2554 * 2555 * @param network The network to accept. 2556 * @param accept Whether to accept the network even if unvalidated. 2557 * @param always Whether to remember this choice in the future. 2558 * 2559 * @hide 2560 */ 2561 public void setAcceptUnvalidated(Network network, boolean accept, boolean always) { 2562 try { 2563 mService.setAcceptUnvalidated(network, accept, always); 2564 } catch (RemoteException e) {} 2565 } 2566 2567 /** 2568 * Resets all connectivity manager settings back to factory defaults. 2569 * @hide 2570 */ 2571 public void factoryReset() { 2572 try { 2573 mService.factoryReset(); 2574 } catch (RemoteException e) { 2575 } 2576 } 2577 2578 /** 2579 * Binds the current process to {@code network}. All Sockets created in the future 2580 * (and not explicitly bound via a bound SocketFactory from 2581 * {@link Network#getSocketFactory() Network.getSocketFactory()}) will be bound to 2582 * {@code network}. All host name resolutions will be limited to {@code network} as well. 2583 * Note that if {@code network} ever disconnects, all Sockets created in this way will cease to 2584 * work and all host name resolutions will fail. This is by design so an application doesn't 2585 * accidentally use Sockets it thinks are still bound to a particular {@link Network}. 2586 * To clear binding pass {@code null} for {@code network}. Using individually bound 2587 * Sockets created by Network.getSocketFactory().createSocket() and 2588 * performing network-specific host name resolutions via 2589 * {@link Network#getAllByName Network.getAllByName} is preferred to calling 2590 * {@code bindProcessToNetwork}. 2591 * 2592 * @param network The {@link Network} to bind the current process to, or {@code null} to clear 2593 * the current binding. 2594 * @return {@code true} on success, {@code false} if the {@link Network} is no longer valid. 2595 */ 2596 public boolean bindProcessToNetwork(Network network) { 2597 // Forcing callers to call thru non-static function ensures ConnectivityManager 2598 // instantiated. 2599 return setProcessDefaultNetwork(network); 2600 } 2601 2602 /** 2603 * Binds the current process to {@code network}. All Sockets created in the future 2604 * (and not explicitly bound via a bound SocketFactory from 2605 * {@link Network#getSocketFactory() Network.getSocketFactory()}) will be bound to 2606 * {@code network}. All host name resolutions will be limited to {@code network} as well. 2607 * Note that if {@code network} ever disconnects, all Sockets created in this way will cease to 2608 * work and all host name resolutions will fail. This is by design so an application doesn't 2609 * accidentally use Sockets it thinks are still bound to a particular {@link Network}. 2610 * To clear binding pass {@code null} for {@code network}. Using individually bound 2611 * Sockets created by Network.getSocketFactory().createSocket() and 2612 * performing network-specific host name resolutions via 2613 * {@link Network#getAllByName Network.getAllByName} is preferred to calling 2614 * {@code setProcessDefaultNetwork}. 2615 * 2616 * @param network The {@link Network} to bind the current process to, or {@code null} to clear 2617 * the current binding. 2618 * @return {@code true} on success, {@code false} if the {@link Network} is no longer valid. 2619 * @deprecated This function can throw {@link IllegalStateException}. Use 2620 * {@link #bindProcessToNetwork} instead. {@code bindProcessToNetwork} 2621 * is a direct replacement. 2622 */ 2623 public static boolean setProcessDefaultNetwork(Network network) { 2624 int netId = (network == null) ? NETID_UNSET : network.netId; 2625 if (netId == NetworkUtils.getBoundNetworkForProcess()) { 2626 return true; 2627 } 2628 if (NetworkUtils.bindProcessToNetwork(netId)) { 2629 // Set HTTP proxy system properties to match network. 2630 // TODO: Deprecate this static method and replace it with a non-static version. 2631 try { 2632 Proxy.setHttpProxySystemProperty(getInstance().getDefaultProxy()); 2633 } catch (SecurityException e) { 2634 // The process doesn't have ACCESS_NETWORK_STATE, so we can't fetch the proxy. 2635 Log.e(TAG, "Can't set proxy properties", e); 2636 } 2637 // Must flush DNS cache as new network may have different DNS resolutions. 2638 InetAddress.clearDnsCache(); 2639 // Must flush socket pool as idle sockets will be bound to previous network and may 2640 // cause subsequent fetches to be performed on old network. 2641 NetworkEventDispatcher.getInstance().onNetworkConfigurationChanged(); 2642 return true; 2643 } else { 2644 return false; 2645 } 2646 } 2647 2648 /** 2649 * Returns the {@link Network} currently bound to this process via 2650 * {@link #bindProcessToNetwork}, or {@code null} if no {@link Network} is explicitly bound. 2651 * 2652 * @return {@code Network} to which this process is bound, or {@code null}. 2653 */ 2654 public Network getBoundNetworkForProcess() { 2655 // Forcing callers to call thru non-static function ensures ConnectivityManager 2656 // instantiated. 2657 return getProcessDefaultNetwork(); 2658 } 2659 2660 /** 2661 * Returns the {@link Network} currently bound to this process via 2662 * {@link #bindProcessToNetwork}, or {@code null} if no {@link Network} is explicitly bound. 2663 * 2664 * @return {@code Network} to which this process is bound, or {@code null}. 2665 * @deprecated Using this function can lead to other functions throwing 2666 * {@link IllegalStateException}. Use {@link #getBoundNetworkForProcess} instead. 2667 * {@code getBoundNetworkForProcess} is a direct replacement. 2668 */ 2669 public static Network getProcessDefaultNetwork() { 2670 int netId = NetworkUtils.getBoundNetworkForProcess(); 2671 if (netId == NETID_UNSET) return null; 2672 return new Network(netId); 2673 } 2674 2675 /** 2676 * Binds host resolutions performed by this process to {@code network}. 2677 * {@link #bindProcessToNetwork} takes precedence over this setting. 2678 * 2679 * @param network The {@link Network} to bind host resolutions from the current process to, or 2680 * {@code null} to clear the current binding. 2681 * @return {@code true} on success, {@code false} if the {@link Network} is no longer valid. 2682 * @hide 2683 * @deprecated This is strictly for legacy usage to support {@link #startUsingNetworkFeature}. 2684 */ 2685 public static boolean setProcessDefaultNetworkForHostResolution(Network network) { 2686 return NetworkUtils.bindProcessToNetworkForHostResolution( 2687 network == null ? NETID_UNSET : network.netId); 2688 } 2689} 2690