ConnectivityManager.java revision 90e9307e8fa713081aeccd8f5f212c0f1255bd07
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.Bundle; 29import android.os.Handler; 30import android.os.HandlerThread; 31import android.os.IBinder; 32import android.os.INetworkActivityListener; 33import android.os.INetworkManagementService; 34import android.os.Looper; 35import android.os.Message; 36import android.os.Messenger; 37import android.os.RemoteException; 38import android.os.ServiceManager; 39import android.provider.Settings; 40import android.telephony.TelephonyManager; 41import android.util.ArrayMap; 42import android.util.Log; 43 44import com.android.internal.telephony.ITelephony; 45import com.android.internal.telephony.PhoneConstants; 46import com.android.internal.util.Protocol; 47 48import java.net.InetAddress; 49import java.util.concurrent.atomic.AtomicInteger; 50import java.util.HashMap; 51 52import libcore.net.event.NetworkEventDispatcher; 53 54/** 55 * Class that answers queries about the state of network connectivity. It also 56 * notifies applications when network connectivity changes. Get an instance 57 * of this class by calling 58 * {@link android.content.Context#getSystemService(String) Context.getSystemService(Context.CONNECTIVITY_SERVICE)}. 59 * <p> 60 * The primary responsibilities of this class are to: 61 * <ol> 62 * <li>Monitor network connections (Wi-Fi, GPRS, UMTS, etc.)</li> 63 * <li>Send broadcast intents when network connectivity changes</li> 64 * <li>Attempt to "fail over" to another network when connectivity to a network 65 * is lost</li> 66 * <li>Provide an API that allows applications to query the coarse-grained or fine-grained 67 * state of the available networks</li> 68 * <li>Provide an API that allows applications to request and select networks for their data 69 * traffic</li> 70 * </ol> 71 */ 72public class ConnectivityManager { 73 private static final String TAG = "ConnectivityManager"; 74 private static final boolean LEGACY_DBG = true; // STOPSHIP 75 76 /** 77 * A change in network connectivity has occurred. A default connection has either 78 * been established or lost. The NetworkInfo for the affected network is 79 * sent as an extra; it should be consulted to see what kind of 80 * connectivity event occurred. 81 * <p/> 82 * If this is a connection that was the result of failing over from a 83 * disconnected network, then the FAILOVER_CONNECTION boolean extra is 84 * set to true. 85 * <p/> 86 * For a loss of connectivity, if the connectivity manager is attempting 87 * to connect (or has already connected) to another network, the 88 * NetworkInfo for the new network is also passed as an extra. This lets 89 * any receivers of the broadcast know that they should not necessarily 90 * tell the user that no data traffic will be possible. Instead, the 91 * receiver should expect another broadcast soon, indicating either that 92 * the failover attempt succeeded (and so there is still overall data 93 * connectivity), or that the failover attempt failed, meaning that all 94 * connectivity has been lost. 95 * <p/> 96 * For a disconnect event, the boolean extra EXTRA_NO_CONNECTIVITY 97 * is set to {@code true} if there are no connected networks at all. 98 */ 99 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 100 public static final String CONNECTIVITY_ACTION = "android.net.conn.CONNECTIVITY_CHANGE"; 101 102 /** 103 * Identical to {@link #CONNECTIVITY_ACTION} broadcast, but sent without any 104 * applicable {@link Settings.Global#CONNECTIVITY_CHANGE_DELAY}. 105 * 106 * @hide 107 */ 108 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 109 public static final String CONNECTIVITY_ACTION_IMMEDIATE = 110 "android.net.conn.CONNECTIVITY_CHANGE_IMMEDIATE"; 111 112 /** 113 * The lookup key for a {@link NetworkInfo} object. Retrieve with 114 * {@link android.content.Intent#getParcelableExtra(String)}. 115 * 116 * @deprecated Since {@link NetworkInfo} can vary based on UID, applications 117 * should always obtain network information through 118 * {@link #getActiveNetworkInfo()} or 119 * {@link #getAllNetworkInfo()}. 120 * @see #EXTRA_NETWORK_TYPE 121 */ 122 @Deprecated 123 public static final String EXTRA_NETWORK_INFO = "networkInfo"; 124 125 /** 126 * Network type which triggered a {@link #CONNECTIVITY_ACTION} broadcast. 127 * Can be used with {@link #getNetworkInfo(int)} to get {@link NetworkInfo} 128 * state based on the calling application. 129 * 130 * @see android.content.Intent#getIntExtra(String, int) 131 */ 132 public static final String EXTRA_NETWORK_TYPE = "networkType"; 133 134 /** 135 * The lookup key for a boolean that indicates whether a connect event 136 * is for a network to which the connectivity manager was failing over 137 * following a disconnect on another network. 138 * Retrieve it with {@link android.content.Intent#getBooleanExtra(String,boolean)}. 139 */ 140 public static final String EXTRA_IS_FAILOVER = "isFailover"; 141 /** 142 * The lookup key for a {@link NetworkInfo} object. This is supplied when 143 * there is another network that it may be possible to connect to. Retrieve with 144 * {@link android.content.Intent#getParcelableExtra(String)}. 145 */ 146 public static final String EXTRA_OTHER_NETWORK_INFO = "otherNetwork"; 147 /** 148 * The lookup key for a boolean that indicates whether there is a 149 * complete lack of connectivity, i.e., no network is available. 150 * Retrieve it with {@link android.content.Intent#getBooleanExtra(String,boolean)}. 151 */ 152 public static final String EXTRA_NO_CONNECTIVITY = "noConnectivity"; 153 /** 154 * The lookup key for a string that indicates why an attempt to connect 155 * to a network failed. The string has no particular structure. It is 156 * intended to be used in notifications presented to users. Retrieve 157 * it with {@link android.content.Intent#getStringExtra(String)}. 158 */ 159 public static final String EXTRA_REASON = "reason"; 160 /** 161 * The lookup key for a string that provides optionally supplied 162 * extra information about the network state. The information 163 * may be passed up from the lower networking layers, and its 164 * meaning may be specific to a particular network type. Retrieve 165 * it with {@link android.content.Intent#getStringExtra(String)}. 166 */ 167 public static final String EXTRA_EXTRA_INFO = "extraInfo"; 168 /** 169 * The lookup key for an int that provides information about 170 * our connection to the internet at large. 0 indicates no connection, 171 * 100 indicates a great connection. Retrieve it with 172 * {@link android.content.Intent#getIntExtra(String, int)}. 173 * {@hide} 174 */ 175 public static final String EXTRA_INET_CONDITION = "inetCondition"; 176 177 /** 178 * Broadcast action to indicate the change of data activity status 179 * (idle or active) on a network in a recent period. 180 * The network becomes active when data transmission is started, or 181 * idle if there is no data transmission for a period of time. 182 * {@hide} 183 */ 184 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 185 public static final String ACTION_DATA_ACTIVITY_CHANGE = "android.net.conn.DATA_ACTIVITY_CHANGE"; 186 /** 187 * The lookup key for an enum that indicates the network device type on which this data activity 188 * change happens. 189 * {@hide} 190 */ 191 public static final String EXTRA_DEVICE_TYPE = "deviceType"; 192 /** 193 * The lookup key for a boolean that indicates the device is active or not. {@code true} means 194 * it is actively sending or receiving data and {@code false} means it is idle. 195 * {@hide} 196 */ 197 public static final String EXTRA_IS_ACTIVE = "isActive"; 198 /** 199 * The lookup key for a long that contains the timestamp (nanos) of the radio state change. 200 * {@hide} 201 */ 202 public static final String EXTRA_REALTIME_NS = "tsNanos"; 203 204 /** 205 * Broadcast Action: The setting for background data usage has changed 206 * values. Use {@link #getBackgroundDataSetting()} to get the current value. 207 * <p> 208 * If an application uses the network in the background, it should listen 209 * for this broadcast and stop using the background data if the value is 210 * {@code false}. 211 * <p> 212 * 213 * @deprecated As of {@link VERSION_CODES#ICE_CREAM_SANDWICH}, availability 214 * of background data depends on several combined factors, and 215 * this broadcast is no longer sent. Instead, when background 216 * data is unavailable, {@link #getActiveNetworkInfo()} will now 217 * appear disconnected. During first boot after a platform 218 * upgrade, this broadcast will be sent once if 219 * {@link #getBackgroundDataSetting()} was {@code false} before 220 * the upgrade. 221 */ 222 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 223 @Deprecated 224 public static final String ACTION_BACKGROUND_DATA_SETTING_CHANGED = 225 "android.net.conn.BACKGROUND_DATA_SETTING_CHANGED"; 226 227 /** 228 * Broadcast Action: The network connection may not be good 229 * uses {@code ConnectivityManager.EXTRA_INET_CONDITION} and 230 * {@code ConnectivityManager.EXTRA_NETWORK_INFO} to specify 231 * the network and it's condition. 232 * @hide 233 */ 234 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 235 public static final String INET_CONDITION_ACTION = 236 "android.net.conn.INET_CONDITION_ACTION"; 237 238 /** 239 * Broadcast Action: A tetherable connection has come or gone. 240 * Uses {@code ConnectivityManager.EXTRA_AVAILABLE_TETHER}, 241 * {@code ConnectivityManager.EXTRA_ACTIVE_TETHER} and 242 * {@code ConnectivityManager.EXTRA_ERRORED_TETHER} to indicate 243 * the current state of tethering. Each include a list of 244 * interface names in that state (may be empty). 245 * @hide 246 */ 247 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 248 public static final String ACTION_TETHER_STATE_CHANGED = 249 "android.net.conn.TETHER_STATE_CHANGED"; 250 251 /** 252 * @hide 253 * gives a String[] listing all the interfaces configured for 254 * tethering and currently available for tethering. 255 */ 256 public static final String EXTRA_AVAILABLE_TETHER = "availableArray"; 257 258 /** 259 * @hide 260 * gives a String[] listing all the interfaces currently tethered 261 * (ie, has dhcp support and packets potentially forwarded/NATed) 262 */ 263 public static final String EXTRA_ACTIVE_TETHER = "activeArray"; 264 265 /** 266 * @hide 267 * gives a String[] listing all the interfaces we tried to tether and 268 * failed. Use {@link #getLastTetherError} to find the error code 269 * for any interfaces listed here. 270 */ 271 public static final String EXTRA_ERRORED_TETHER = "erroredArray"; 272 273 /** 274 * Broadcast Action: The captive portal tracker has finished its test. 275 * Sent only while running Setup Wizard, in lieu of showing a user 276 * notification. 277 * @hide 278 */ 279 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 280 public static final String ACTION_CAPTIVE_PORTAL_TEST_COMPLETED = 281 "android.net.conn.CAPTIVE_PORTAL_TEST_COMPLETED"; 282 /** 283 * The lookup key for a boolean that indicates whether a captive portal was detected. 284 * Retrieve it with {@link android.content.Intent#getBooleanExtra(String,boolean)}. 285 * @hide 286 */ 287 public static final String EXTRA_IS_CAPTIVE_PORTAL = "captivePortal"; 288 289 /** 290 * The absence of a connection type. 291 * @hide 292 */ 293 public static final int TYPE_NONE = -1; 294 295 /** 296 * The Mobile data connection. When active, all data traffic 297 * will use this network type's interface by default 298 * (it has a default route) 299 */ 300 public static final int TYPE_MOBILE = 0; 301 /** 302 * The WIFI data connection. When active, all data traffic 303 * will use this network type's interface by default 304 * (it has a default route). 305 */ 306 public static final int TYPE_WIFI = 1; 307 /** 308 * An MMS-specific Mobile data connection. This network type may use the 309 * same network interface as {@link #TYPE_MOBILE} or it may use a different 310 * one. This is used by applications needing to talk to the carrier's 311 * Multimedia Messaging Service servers. 312 */ 313 public static final int TYPE_MOBILE_MMS = 2; 314 /** 315 * A SUPL-specific Mobile data connection. This network type may use the 316 * same network interface as {@link #TYPE_MOBILE} or it may use a different 317 * one. This is used by applications needing to talk to the carrier's 318 * Secure User Plane Location servers for help locating the device. 319 */ 320 public static final int TYPE_MOBILE_SUPL = 3; 321 /** 322 * A DUN-specific Mobile data connection. This network type may use the 323 * same network interface as {@link #TYPE_MOBILE} or it may use a different 324 * one. This is sometimes by the system when setting up an upstream connection 325 * for tethering so that the carrier is aware of DUN traffic. 326 */ 327 public static final int TYPE_MOBILE_DUN = 4; 328 /** 329 * A High Priority Mobile data connection. This network type uses the 330 * same network interface as {@link #TYPE_MOBILE} but the routing setup 331 * is different. Only requesting processes will have access to the 332 * Mobile DNS servers and only IP's explicitly requested via {@link #requestRouteToHost} 333 * will route over this interface if no default route exists. 334 */ 335 public static final int TYPE_MOBILE_HIPRI = 5; 336 /** 337 * The WiMAX data connection. When active, all data traffic 338 * will use this network type's interface by default 339 * (it has a default route). 340 */ 341 public static final int TYPE_WIMAX = 6; 342 343 /** 344 * The Bluetooth data connection. When active, all data traffic 345 * will use this network type's interface by default 346 * (it has a default route). 347 */ 348 public static final int TYPE_BLUETOOTH = 7; 349 350 /** 351 * Dummy data connection. This should not be used on shipping devices. 352 */ 353 public static final int TYPE_DUMMY = 8; 354 355 /** 356 * The Ethernet data connection. When active, all data traffic 357 * will use this network type's interface by default 358 * (it has a default route). 359 */ 360 public static final int TYPE_ETHERNET = 9; 361 362 /** 363 * Over the air Administration. 364 * {@hide} 365 */ 366 public static final int TYPE_MOBILE_FOTA = 10; 367 368 /** 369 * IP Multimedia Subsystem. 370 * {@hide} 371 */ 372 public static final int TYPE_MOBILE_IMS = 11; 373 374 /** 375 * Carrier Branded Services. 376 * {@hide} 377 */ 378 public static final int TYPE_MOBILE_CBS = 12; 379 380 /** 381 * A Wi-Fi p2p connection. Only requesting processes will have access to 382 * the peers connected. 383 * {@hide} 384 */ 385 public static final int TYPE_WIFI_P2P = 13; 386 387 /** 388 * The network to use for initially attaching to the network 389 * {@hide} 390 */ 391 public static final int TYPE_MOBILE_IA = 14; 392 393/** 394 * Emergency PDN connection for emergency calls 395 * {@hide} 396 */ 397 public static final int TYPE_MOBILE_EMERGENCY = 15; 398 399 /** 400 * The network that uses proxy to achieve connectivity. 401 * {@hide} 402 */ 403 public static final int TYPE_PROXY = 16; 404 405 /** 406 * A virtual network using one or more native bearers. 407 * It may or may not be providing security services. 408 */ 409 public static final int TYPE_VPN = 17; 410 411 /** {@hide} */ 412 public static final int MAX_RADIO_TYPE = TYPE_VPN; 413 414 /** {@hide} */ 415 public static final int MAX_NETWORK_TYPE = TYPE_VPN; 416 417 /** 418 * If you want to set the default network preference,you can directly 419 * change the networkAttributes array in framework's config.xml. 420 * 421 * @deprecated Since we support so many more networks now, the single 422 * network default network preference can't really express 423 * the hierarchy. Instead, the default is defined by the 424 * networkAttributes in config.xml. You can determine 425 * the current value by calling {@link #getNetworkPreference()} 426 * from an App. 427 */ 428 @Deprecated 429 public static final int DEFAULT_NETWORK_PREFERENCE = TYPE_WIFI; 430 431 /** 432 * Default value for {@link Settings.Global#CONNECTIVITY_CHANGE_DELAY} in 433 * milliseconds. This was introduced because IPv6 routes seem to take a 434 * moment to settle - trying network activity before the routes are adjusted 435 * can lead to packets using the wrong interface or having the wrong IP address. 436 * This delay is a bit crude, but in the future hopefully we will have kernel 437 * notifications letting us know when it's safe to use the new network. 438 * 439 * @hide 440 */ 441 public static final int CONNECTIVITY_CHANGE_DELAY_DEFAULT = 3000; 442 443 /** 444 * @hide 445 */ 446 public final static int REQUEST_ID_UNSET = 0; 447 448 /** 449 * A NetID indicating no Network is selected. 450 * Keep in sync with bionic/libc/dns/include/resolv_netid.h 451 * @hide 452 */ 453 public static final int NETID_UNSET = 0; 454 455 private final IConnectivityManager mService; 456 457 private INetworkManagementService mNMService; 458 459 /** 460 * Tests if a given integer represents a valid network type. 461 * @param networkType the type to be tested 462 * @return a boolean. {@code true} if the type is valid, else {@code false} 463 */ 464 public static boolean isNetworkTypeValid(int networkType) { 465 return networkType >= 0 && networkType <= MAX_NETWORK_TYPE; 466 } 467 468 /** 469 * Returns a non-localized string representing a given network type. 470 * ONLY used for debugging output. 471 * @param type the type needing naming 472 * @return a String for the given type, or a string version of the type ("87") 473 * if no name is known. 474 * {@hide} 475 */ 476 public static String getNetworkTypeName(int type) { 477 switch (type) { 478 case TYPE_MOBILE: 479 return "MOBILE"; 480 case TYPE_WIFI: 481 return "WIFI"; 482 case TYPE_MOBILE_MMS: 483 return "MOBILE_MMS"; 484 case TYPE_MOBILE_SUPL: 485 return "MOBILE_SUPL"; 486 case TYPE_MOBILE_DUN: 487 return "MOBILE_DUN"; 488 case TYPE_MOBILE_HIPRI: 489 return "MOBILE_HIPRI"; 490 case TYPE_WIMAX: 491 return "WIMAX"; 492 case TYPE_BLUETOOTH: 493 return "BLUETOOTH"; 494 case TYPE_DUMMY: 495 return "DUMMY"; 496 case TYPE_ETHERNET: 497 return "ETHERNET"; 498 case TYPE_MOBILE_FOTA: 499 return "MOBILE_FOTA"; 500 case TYPE_MOBILE_IMS: 501 return "MOBILE_IMS"; 502 case TYPE_MOBILE_CBS: 503 return "MOBILE_CBS"; 504 case TYPE_WIFI_P2P: 505 return "WIFI_P2P"; 506 case TYPE_MOBILE_IA: 507 return "MOBILE_IA"; 508 case TYPE_MOBILE_EMERGENCY: 509 return "MOBILE_EMERGENCY"; 510 case TYPE_PROXY: 511 return "PROXY"; 512 default: 513 return Integer.toString(type); 514 } 515 } 516 517 /** 518 * Checks if a given type uses the cellular data connection. 519 * This should be replaced in the future by a network property. 520 * @param networkType the type to check 521 * @return a boolean - {@code true} if uses cellular network, else {@code false} 522 * {@hide} 523 */ 524 public static boolean isNetworkTypeMobile(int networkType) { 525 switch (networkType) { 526 case TYPE_MOBILE: 527 case TYPE_MOBILE_MMS: 528 case TYPE_MOBILE_SUPL: 529 case TYPE_MOBILE_DUN: 530 case TYPE_MOBILE_HIPRI: 531 case TYPE_MOBILE_FOTA: 532 case TYPE_MOBILE_IMS: 533 case TYPE_MOBILE_CBS: 534 case TYPE_MOBILE_IA: 535 case TYPE_MOBILE_EMERGENCY: 536 return true; 537 default: 538 return false; 539 } 540 } 541 542 /** 543 * Checks if the given network type is backed by a Wi-Fi radio. 544 * 545 * @hide 546 */ 547 public static boolean isNetworkTypeWifi(int networkType) { 548 switch (networkType) { 549 case TYPE_WIFI: 550 case TYPE_WIFI_P2P: 551 return true; 552 default: 553 return false; 554 } 555 } 556 557 /** 558 * Specifies the preferred network type. When the device has more 559 * than one type available the preferred network type will be used. 560 * 561 * @param preference the network type to prefer over all others. It is 562 * unspecified what happens to the old preferred network in the 563 * overall ordering. 564 * @deprecated Functionality has been removed as it no longer makes sense, 565 * with many more than two networks - we'd need an array to express 566 * preference. Instead we use dynamic network properties of 567 * the networks to describe their precedence. 568 */ 569 public void setNetworkPreference(int preference) { 570 } 571 572 /** 573 * Retrieves the current preferred network type. 574 * 575 * @return an integer representing the preferred network type 576 * 577 * <p>This method requires the caller to hold the permission 578 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 579 * @deprecated Functionality has been removed as it no longer makes sense, 580 * with many more than two networks - we'd need an array to express 581 * preference. Instead we use dynamic network properties of 582 * the networks to describe their precedence. 583 */ 584 public int getNetworkPreference() { 585 return TYPE_NONE; 586 } 587 588 /** 589 * Returns details about the currently active default data network. When 590 * connected, this network is the default route for outgoing connections. 591 * You should always check {@link NetworkInfo#isConnected()} before initiating 592 * network traffic. This may return {@code null} when there is no default 593 * network. 594 * 595 * @return a {@link NetworkInfo} object for the current default network 596 * or {@code null} if no network default network is currently active 597 * 598 * <p>This method requires the call to hold the permission 599 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 600 */ 601 public NetworkInfo getActiveNetworkInfo() { 602 try { 603 return mService.getActiveNetworkInfo(); 604 } catch (RemoteException e) { 605 return null; 606 } 607 } 608 609 /** 610 * Returns details about the currently active default data network 611 * for a given uid. This is for internal use only to avoid spying 612 * other apps. 613 * 614 * @return a {@link NetworkInfo} object for the current default network 615 * for the given uid or {@code null} if no default network is 616 * available for the specified uid. 617 * 618 * <p>This method requires the caller to hold the permission 619 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL} 620 * {@hide} 621 */ 622 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 623 try { 624 return mService.getActiveNetworkInfoForUid(uid); 625 } catch (RemoteException e) { 626 return null; 627 } 628 } 629 630 /** 631 * Returns connection status information about a particular 632 * network type. 633 * 634 * @param networkType integer specifying which networkType in 635 * which you're interested. 636 * @return a {@link NetworkInfo} object for the requested 637 * network type or {@code null} if the type is not 638 * supported by the device. 639 * 640 * <p>This method requires the caller to hold the permission 641 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 642 */ 643 public NetworkInfo getNetworkInfo(int networkType) { 644 try { 645 return mService.getNetworkInfo(networkType); 646 } catch (RemoteException e) { 647 return null; 648 } 649 } 650 651 /** 652 * Returns connection status information about a particular 653 * Network. 654 * 655 * @param network {@link Network} specifying which network 656 * in which you're interested. 657 * @return a {@link NetworkInfo} object for the requested 658 * network or {@code null} if the {@code Network} 659 * is not valid. 660 * 661 * <p>This method requires the caller to hold the permission 662 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 663 */ 664 public NetworkInfo getNetworkInfo(Network network) { 665 try { 666 return mService.getNetworkInfoForNetwork(network); 667 } catch (RemoteException e) { 668 return null; 669 } 670 } 671 672 /** 673 * Returns connection status information about all network 674 * types supported by the device. 675 * 676 * @return an array of {@link NetworkInfo} objects. Check each 677 * {@link NetworkInfo#getType} for which type each applies. 678 * 679 * <p>This method requires the caller to hold the permission 680 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 681 */ 682 public NetworkInfo[] getAllNetworkInfo() { 683 try { 684 return mService.getAllNetworkInfo(); 685 } catch (RemoteException e) { 686 return null; 687 } 688 } 689 690 /** 691 * Returns the {@link Network} object currently serving a given type, or 692 * null if the given type is not connected. 693 * 694 * <p>This method requires the caller to hold the permission 695 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 696 * 697 * @hide 698 */ 699 public Network getNetworkForType(int networkType) { 700 try { 701 return mService.getNetworkForType(networkType); 702 } catch (RemoteException e) { 703 return null; 704 } 705 } 706 707 /** 708 * Returns an array of all {@link Network} currently tracked by the 709 * framework. 710 * 711 * @return an array of {@link Network} objects. 712 * 713 * <p>This method requires the caller to hold the permission 714 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 715 */ 716 public Network[] getAllNetworks() { 717 try { 718 return mService.getAllNetworks(); 719 } catch (RemoteException e) { 720 return null; 721 } 722 } 723 724 /** 725 * Returns details about the Provisioning or currently active default data network. When 726 * connected, this network is the default route for outgoing connections. 727 * You should always check {@link NetworkInfo#isConnected()} before initiating 728 * network traffic. This may return {@code null} when there is no default 729 * network. 730 * 731 * @return a {@link NetworkInfo} object for the current default network 732 * or {@code null} if no network default network is currently active 733 * 734 * <p>This method requires the call to hold the permission 735 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 736 * 737 * {@hide} 738 */ 739 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 740 try { 741 return mService.getProvisioningOrActiveNetworkInfo(); 742 } catch (RemoteException e) { 743 return null; 744 } 745 } 746 747 /** 748 * Returns the IP information for the current default network. 749 * 750 * @return a {@link LinkProperties} object describing the IP info 751 * for the current default network, or {@code null} if there 752 * is no current default network. 753 * 754 * <p>This method requires the call to hold the permission 755 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 756 * {@hide} 757 */ 758 public LinkProperties getActiveLinkProperties() { 759 try { 760 return mService.getActiveLinkProperties(); 761 } catch (RemoteException e) { 762 return null; 763 } 764 } 765 766 /** 767 * Returns the IP information for a given network type. 768 * 769 * @param networkType the network type of interest. 770 * @return a {@link LinkProperties} object describing the IP info 771 * for the given networkType, or {@code null} if there is 772 * no current default network. 773 * 774 * <p>This method requires the call to hold the permission 775 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 776 * {@hide} 777 */ 778 public LinkProperties getLinkProperties(int networkType) { 779 try { 780 return mService.getLinkPropertiesForType(networkType); 781 } catch (RemoteException e) { 782 return null; 783 } 784 } 785 786 /** 787 * Get the {@link LinkProperties} for the given {@link Network}. This 788 * will return {@code null} if the network is unknown. 789 * 790 * @param network The {@link Network} object identifying the network in question. 791 * @return The {@link LinkProperties} for the network, or {@code null}. 792 **/ 793 public LinkProperties getLinkProperties(Network network) { 794 try { 795 return mService.getLinkProperties(network); 796 } catch (RemoteException e) { 797 return null; 798 } 799 } 800 801 /** 802 * Get the {@link NetworkCapabilities} for the given {@link Network}. This 803 * will return {@code null} if the network is unknown. 804 * 805 * @param network The {@link Network} object identifying the network in question. 806 * @return The {@link NetworkCapabilities} for the network, or {@code null}. 807 */ 808 public NetworkCapabilities getNetworkCapabilities(Network network) { 809 try { 810 return mService.getNetworkCapabilities(network); 811 } catch (RemoteException e) { 812 return null; 813 } 814 } 815 816 /** 817 * Tells each network type to set its radio power state as directed. 818 * 819 * @param turnOn a boolean, {@code true} to turn the radios on, 820 * {@code false} to turn them off. 821 * @return a boolean, {@code true} indicating success. All network types 822 * will be tried, even if some fail. 823 * 824 * <p>This method requires the call to hold the permission 825 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 826 * {@hide} 827 */ 828// TODO - check for any callers and remove 829// public boolean setRadios(boolean turnOn) { 830// try { 831// return mService.setRadios(turnOn); 832// } catch (RemoteException e) { 833// return false; 834// } 835// } 836 837 /** 838 * Tells a given networkType to set its radio power state as directed. 839 * 840 * @param networkType the int networkType of interest. 841 * @param turnOn a boolean, {@code true} to turn the radio on, 842 * {@code} false to turn it off. 843 * @return a boolean, {@code true} indicating success. 844 * 845 * <p>This method requires the call to hold the permission 846 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 847 * {@hide} 848 */ 849// TODO - check for any callers and remove 850// public boolean setRadio(int networkType, boolean turnOn) { 851// try { 852// return mService.setRadio(networkType, turnOn); 853// } catch (RemoteException e) { 854// return false; 855// } 856// } 857 858 /** 859 * Tells the underlying networking system that the caller wants to 860 * begin using the named feature. The interpretation of {@code feature} 861 * is completely up to each networking implementation. 862 * <p>This method requires the caller to hold the permission 863 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 864 * @param networkType specifies which network the request pertains to 865 * @param feature the name of the feature to be used 866 * @return an integer value representing the outcome of the request. 867 * The interpretation of this value is specific to each networking 868 * implementation+feature combination, except that the value {@code -1} 869 * always indicates failure. 870 * 871 * @deprecated Deprecated in favor of the cleaner {@link #requestNetwork} api. 872 */ 873 public int startUsingNetworkFeature(int networkType, String feature) { 874 NetworkCapabilities netCap = networkCapabilitiesForFeature(networkType, feature); 875 if (netCap == null) { 876 Log.d(TAG, "Can't satisfy startUsingNetworkFeature for " + networkType + ", " + 877 feature); 878 return PhoneConstants.APN_REQUEST_FAILED; 879 } 880 881 NetworkRequest request = null; 882 synchronized (sLegacyRequests) { 883 if (LEGACY_DBG) { 884 Log.d(TAG, "Looking for legacyRequest for netCap with hash: " + netCap + " (" + 885 netCap.hashCode() + ")"); 886 Log.d(TAG, "sLegacyRequests has:"); 887 for (NetworkCapabilities nc : sLegacyRequests.keySet()) { 888 Log.d(TAG, " " + nc + " (" + nc.hashCode() + ")"); 889 } 890 } 891 LegacyRequest l = sLegacyRequests.get(netCap); 892 if (l != null) { 893 Log.d(TAG, "renewing startUsingNetworkFeature request " + l.networkRequest); 894 renewRequestLocked(l); 895 if (l.currentNetwork != null) { 896 return PhoneConstants.APN_ALREADY_ACTIVE; 897 } else { 898 return PhoneConstants.APN_REQUEST_STARTED; 899 } 900 } 901 902 request = requestNetworkForFeatureLocked(netCap); 903 } 904 if (request != null) { 905 Log.d(TAG, "starting startUsingNetworkFeature for request " + request); 906 return PhoneConstants.APN_REQUEST_STARTED; 907 } else { 908 Log.d(TAG, " request Failed"); 909 return PhoneConstants.APN_REQUEST_FAILED; 910 } 911 } 912 913 /** 914 * Tells the underlying networking system that the caller is finished 915 * using the named feature. The interpretation of {@code feature} 916 * is completely up to each networking implementation. 917 * <p>This method requires the caller to hold the permission 918 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 919 * @param networkType specifies which network the request pertains to 920 * @param feature the name of the feature that is no longer needed 921 * @return an integer value representing the outcome of the request. 922 * The interpretation of this value is specific to each networking 923 * implementation+feature combination, except that the value {@code -1} 924 * always indicates failure. 925 * 926 * @deprecated Deprecated in favor of the cleaner {@link #requestNetwork} api. 927 */ 928 public int stopUsingNetworkFeature(int networkType, String feature) { 929 NetworkCapabilities netCap = networkCapabilitiesForFeature(networkType, feature); 930 if (netCap == null) { 931 Log.d(TAG, "Can't satisfy stopUsingNetworkFeature for " + networkType + ", " + 932 feature); 933 return -1; 934 } 935 936 NetworkCallback networkCallback = removeRequestForFeature(netCap); 937 if (networkCallback != null) { 938 Log.d(TAG, "stopUsingNetworkFeature for " + networkType + ", " + feature); 939 unregisterNetworkCallback(networkCallback); 940 } 941 return 1; 942 } 943 944 /** 945 * Removes the NET_CAPABILITY_NOT_RESTRICTED capability from the given 946 * NetworkCapabilities object if all the capabilities it provides are 947 * typically provided by restricted networks. 948 * 949 * TODO: consider: 950 * - Moving to NetworkCapabilities 951 * - Renaming it to guessRestrictedCapability and make it set the 952 * restricted capability bit in addition to clearing it. 953 * @hide 954 */ 955 public static void maybeMarkCapabilitiesRestricted(NetworkCapabilities nc) { 956 for (int capability : nc.getCapabilities()) { 957 switch (capability) { 958 case NetworkCapabilities.NET_CAPABILITY_CBS: 959 case NetworkCapabilities.NET_CAPABILITY_DUN: 960 case NetworkCapabilities.NET_CAPABILITY_EIMS: 961 case NetworkCapabilities.NET_CAPABILITY_FOTA: 962 case NetworkCapabilities.NET_CAPABILITY_IA: 963 case NetworkCapabilities.NET_CAPABILITY_IMS: 964 case NetworkCapabilities.NET_CAPABILITY_RCS: 965 case NetworkCapabilities.NET_CAPABILITY_XCAP: 966 case NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED: //there by default 967 continue; 968 default: 969 // At least one capability usually provided by unrestricted 970 // networks. Conclude that this network is unrestricted. 971 return; 972 } 973 } 974 // All the capabilities are typically provided by restricted networks. 975 // Conclude that this network is restricted. 976 nc.removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 977 } 978 979 private NetworkCapabilities networkCapabilitiesForFeature(int networkType, String feature) { 980 if (networkType == TYPE_MOBILE) { 981 int cap = -1; 982 if ("enableMMS".equals(feature)) { 983 cap = NetworkCapabilities.NET_CAPABILITY_MMS; 984 } else if ("enableSUPL".equals(feature)) { 985 cap = NetworkCapabilities.NET_CAPABILITY_SUPL; 986 } else if ("enableDUN".equals(feature) || "enableDUNAlways".equals(feature)) { 987 cap = NetworkCapabilities.NET_CAPABILITY_DUN; 988 } else if ("enableHIPRI".equals(feature)) { 989 cap = NetworkCapabilities.NET_CAPABILITY_INTERNET; 990 } else if ("enableFOTA".equals(feature)) { 991 cap = NetworkCapabilities.NET_CAPABILITY_FOTA; 992 } else if ("enableIMS".equals(feature)) { 993 cap = NetworkCapabilities.NET_CAPABILITY_IMS; 994 } else if ("enableCBS".equals(feature)) { 995 cap = NetworkCapabilities.NET_CAPABILITY_CBS; 996 } else { 997 return null; 998 } 999 NetworkCapabilities netCap = new NetworkCapabilities(); 1000 netCap.addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR).addCapability(cap); 1001 maybeMarkCapabilitiesRestricted(netCap); 1002 return netCap; 1003 } else if (networkType == TYPE_WIFI) { 1004 if ("p2p".equals(feature)) { 1005 NetworkCapabilities netCap = new NetworkCapabilities(); 1006 netCap.addTransportType(NetworkCapabilities.TRANSPORT_WIFI); 1007 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_WIFI_P2P); 1008 maybeMarkCapabilitiesRestricted(netCap); 1009 return netCap; 1010 } 1011 } 1012 return null; 1013 } 1014 1015 /** 1016 * Guess what the network request was trying to say so that the resulting 1017 * network is accessible via the legacy (deprecated) API such as 1018 * requestRouteToHost. 1019 * This means we should try to be fairly preceise about transport and 1020 * capability but ignore things such as networkSpecifier. 1021 * If the request has more than one transport or capability it doesn't 1022 * match the old legacy requests (they selected only single transport/capability) 1023 * so this function cannot map the request to a single legacy type and 1024 * the resulting network will not be available to the legacy APIs. 1025 * 1026 * TODO - This should be removed when the legacy APIs are removed. 1027 */ 1028 private int inferLegacyTypeForNetworkCapabilities(NetworkCapabilities netCap) { 1029 if (netCap == null) { 1030 return TYPE_NONE; 1031 } 1032 1033 if (!netCap.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)) { 1034 return TYPE_NONE; 1035 } 1036 1037 String type = null; 1038 int result = TYPE_NONE; 1039 1040 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_CBS)) { 1041 type = "enableCBS"; 1042 result = TYPE_MOBILE_CBS; 1043 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_IMS)) { 1044 type = "enableIMS"; 1045 result = TYPE_MOBILE_IMS; 1046 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_FOTA)) { 1047 type = "enableFOTA"; 1048 result = TYPE_MOBILE_FOTA; 1049 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_DUN)) { 1050 type = "enableDUN"; 1051 result = TYPE_MOBILE_DUN; 1052 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_SUPL)) { 1053 type = "enableSUPL"; 1054 result = TYPE_MOBILE_SUPL; 1055 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_MMS)) { 1056 type = "enableMMS"; 1057 result = TYPE_MOBILE_MMS; 1058 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)) { 1059 type = "enableHIPRI"; 1060 result = TYPE_MOBILE_HIPRI; 1061 } 1062 if (type != null) { 1063 NetworkCapabilities testCap = networkCapabilitiesForFeature(TYPE_MOBILE, type); 1064 if (testCap.equalsNetCapabilities(netCap) && testCap.equalsTransportTypes(netCap)) { 1065 return result; 1066 } 1067 } 1068 return TYPE_NONE; 1069 } 1070 1071 private int legacyTypeForNetworkCapabilities(NetworkCapabilities netCap) { 1072 if (netCap == null) return TYPE_NONE; 1073 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_CBS)) { 1074 return TYPE_MOBILE_CBS; 1075 } 1076 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_IMS)) { 1077 return TYPE_MOBILE_IMS; 1078 } 1079 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_FOTA)) { 1080 return TYPE_MOBILE_FOTA; 1081 } 1082 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_DUN)) { 1083 return TYPE_MOBILE_DUN; 1084 } 1085 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_SUPL)) { 1086 return TYPE_MOBILE_SUPL; 1087 } 1088 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_MMS)) { 1089 return TYPE_MOBILE_MMS; 1090 } 1091 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)) { 1092 return TYPE_MOBILE_HIPRI; 1093 } 1094 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_WIFI_P2P)) { 1095 return TYPE_WIFI_P2P; 1096 } 1097 return TYPE_NONE; 1098 } 1099 1100 private static class LegacyRequest { 1101 NetworkCapabilities networkCapabilities; 1102 NetworkRequest networkRequest; 1103 int expireSequenceNumber; 1104 Network currentNetwork; 1105 int delay = -1; 1106 NetworkCallback networkCallback = new NetworkCallback() { 1107 @Override 1108 public void onAvailable(Network network) { 1109 currentNetwork = network; 1110 Log.d(TAG, "startUsingNetworkFeature got Network:" + network); 1111 setProcessDefaultNetworkForHostResolution(network); 1112 } 1113 @Override 1114 public void onLost(Network network) { 1115 if (network.equals(currentNetwork)) { 1116 currentNetwork = null; 1117 setProcessDefaultNetworkForHostResolution(null); 1118 } 1119 Log.d(TAG, "startUsingNetworkFeature lost Network:" + network); 1120 } 1121 }; 1122 } 1123 1124 private static HashMap<NetworkCapabilities, LegacyRequest> sLegacyRequests = 1125 new HashMap<NetworkCapabilities, LegacyRequest>(); 1126 1127 private NetworkRequest findRequestForFeature(NetworkCapabilities netCap) { 1128 synchronized (sLegacyRequests) { 1129 LegacyRequest l = sLegacyRequests.get(netCap); 1130 if (l != null) return l.networkRequest; 1131 } 1132 return null; 1133 } 1134 1135 private void renewRequestLocked(LegacyRequest l) { 1136 l.expireSequenceNumber++; 1137 Log.d(TAG, "renewing request to seqNum " + l.expireSequenceNumber); 1138 sendExpireMsgForFeature(l.networkCapabilities, l.expireSequenceNumber, l.delay); 1139 } 1140 1141 private void expireRequest(NetworkCapabilities netCap, int sequenceNum) { 1142 int ourSeqNum = -1; 1143 synchronized (sLegacyRequests) { 1144 LegacyRequest l = sLegacyRequests.get(netCap); 1145 if (l == null) return; 1146 ourSeqNum = l.expireSequenceNumber; 1147 if (l.expireSequenceNumber == sequenceNum) { 1148 unregisterNetworkCallback(l.networkCallback); 1149 sLegacyRequests.remove(netCap); 1150 } 1151 } 1152 Log.d(TAG, "expireRequest with " + ourSeqNum + ", " + sequenceNum); 1153 } 1154 1155 private NetworkRequest requestNetworkForFeatureLocked(NetworkCapabilities netCap) { 1156 int delay = -1; 1157 int type = legacyTypeForNetworkCapabilities(netCap); 1158 try { 1159 delay = mService.getRestoreDefaultNetworkDelay(type); 1160 } catch (RemoteException e) {} 1161 LegacyRequest l = new LegacyRequest(); 1162 l.networkCapabilities = netCap; 1163 l.delay = delay; 1164 l.expireSequenceNumber = 0; 1165 l.networkRequest = sendRequestForNetwork(netCap, l.networkCallback, 0, 1166 REQUEST, type); 1167 if (l.networkRequest == null) return null; 1168 sLegacyRequests.put(netCap, l); 1169 sendExpireMsgForFeature(netCap, l.expireSequenceNumber, delay); 1170 return l.networkRequest; 1171 } 1172 1173 private void sendExpireMsgForFeature(NetworkCapabilities netCap, int seqNum, int delay) { 1174 if (delay >= 0) { 1175 Log.d(TAG, "sending expire msg with seqNum " + seqNum + " and delay " + delay); 1176 Message msg = sCallbackHandler.obtainMessage(EXPIRE_LEGACY_REQUEST, seqNum, 0, netCap); 1177 sCallbackHandler.sendMessageDelayed(msg, delay); 1178 } 1179 } 1180 1181 private NetworkCallback removeRequestForFeature(NetworkCapabilities netCap) { 1182 synchronized (sLegacyRequests) { 1183 LegacyRequest l = sLegacyRequests.remove(netCap); 1184 if (l == null) return null; 1185 return l.networkCallback; 1186 } 1187 } 1188 1189 /** 1190 * Ensure that a network route exists to deliver traffic to the specified 1191 * host via the specified network interface. An attempt to add a route that 1192 * already exists is ignored, but treated as successful. 1193 * <p>This method requires the caller to hold the permission 1194 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1195 * @param networkType the type of the network over which traffic to the specified 1196 * host is to be routed 1197 * @param hostAddress the IP address of the host to which the route is desired 1198 * @return {@code true} on success, {@code false} on failure 1199 * 1200 * @deprecated Deprecated in favor of the {@link #requestNetwork}, 1201 * {@link #setProcessDefaultNetwork} and {@link Network#getSocketFactory} api. 1202 */ 1203 public boolean requestRouteToHost(int networkType, int hostAddress) { 1204 return requestRouteToHostAddress(networkType, NetworkUtils.intToInetAddress(hostAddress)); 1205 } 1206 1207 /** 1208 * Ensure that a network route exists to deliver traffic to the specified 1209 * host via the specified network interface. An attempt to add a route that 1210 * already exists is ignored, but treated as successful. 1211 * <p>This method requires the caller to hold the permission 1212 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1213 * @param networkType the type of the network over which traffic to the specified 1214 * host is to be routed 1215 * @param hostAddress the IP address of the host to which the route is desired 1216 * @return {@code true} on success, {@code false} on failure 1217 * @hide 1218 * @deprecated Deprecated in favor of the {@link #requestNetwork} and 1219 * {@link #setProcessDefaultNetwork} api. 1220 */ 1221 public boolean requestRouteToHostAddress(int networkType, InetAddress hostAddress) { 1222 try { 1223 return mService.requestRouteToHostAddress(networkType, hostAddress.getAddress()); 1224 } catch (RemoteException e) { 1225 return false; 1226 } 1227 } 1228 1229 /** 1230 * Returns the value of the setting for background data usage. If false, 1231 * applications should not use the network if the application is not in the 1232 * foreground. Developers should respect this setting, and check the value 1233 * of this before performing any background data operations. 1234 * <p> 1235 * All applications that have background services that use the network 1236 * should listen to {@link #ACTION_BACKGROUND_DATA_SETTING_CHANGED}. 1237 * <p> 1238 * @deprecated As of {@link VERSION_CODES#ICE_CREAM_SANDWICH}, availability of 1239 * background data depends on several combined factors, and this method will 1240 * always return {@code true}. Instead, when background data is unavailable, 1241 * {@link #getActiveNetworkInfo()} will now appear disconnected. 1242 * 1243 * @return Whether background data usage is allowed. 1244 */ 1245 @Deprecated 1246 public boolean getBackgroundDataSetting() { 1247 // assume that background data is allowed; final authority is 1248 // NetworkInfo which may be blocked. 1249 return true; 1250 } 1251 1252 /** 1253 * Sets the value of the setting for background data usage. 1254 * 1255 * @param allowBackgroundData Whether an application should use data while 1256 * it is in the background. 1257 * 1258 * @attr ref android.Manifest.permission#CHANGE_BACKGROUND_DATA_SETTING 1259 * @see #getBackgroundDataSetting() 1260 * @hide 1261 */ 1262 @Deprecated 1263 public void setBackgroundDataSetting(boolean allowBackgroundData) { 1264 // ignored 1265 } 1266 1267 /** 1268 * Return quota status for the current active network, or {@code null} if no 1269 * network is active. Quota status can change rapidly, so these values 1270 * shouldn't be cached. 1271 * 1272 * <p>This method requires the call to hold the permission 1273 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1274 * 1275 * @hide 1276 */ 1277 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1278 try { 1279 return mService.getActiveNetworkQuotaInfo(); 1280 } catch (RemoteException e) { 1281 return null; 1282 } 1283 } 1284 1285 /** 1286 * @hide 1287 * @deprecated Talk to TelephonyManager directly 1288 */ 1289 public boolean getMobileDataEnabled() { 1290 IBinder b = ServiceManager.getService(Context.TELEPHONY_SERVICE); 1291 if (b != null) { 1292 try { 1293 ITelephony it = ITelephony.Stub.asInterface(b); 1294 return it.getDataEnabled(); 1295 } catch (RemoteException e) { } 1296 } 1297 return false; 1298 } 1299 1300 /** 1301 * Callback for use with {@link ConnectivityManager#addDefaultNetworkActiveListener} 1302 * to find out when the system default network has gone in to a high power state. 1303 */ 1304 public interface OnNetworkActiveListener { 1305 /** 1306 * Called on the main thread of the process to report that the current data network 1307 * has become active, and it is now a good time to perform any pending network 1308 * operations. Note that this listener only tells you when the network becomes 1309 * active; if at any other time you want to know whether it is active (and thus okay 1310 * to initiate network traffic), you can retrieve its instantaneous state with 1311 * {@link ConnectivityManager#isDefaultNetworkActive}. 1312 */ 1313 public void onNetworkActive(); 1314 } 1315 1316 private INetworkManagementService getNetworkManagementService() { 1317 synchronized (this) { 1318 if (mNMService != null) { 1319 return mNMService; 1320 } 1321 IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE); 1322 mNMService = INetworkManagementService.Stub.asInterface(b); 1323 return mNMService; 1324 } 1325 } 1326 1327 private final ArrayMap<OnNetworkActiveListener, INetworkActivityListener> 1328 mNetworkActivityListeners 1329 = new ArrayMap<OnNetworkActiveListener, INetworkActivityListener>(); 1330 1331 /** 1332 * Start listening to reports when the system's default data network is active, meaning it is 1333 * a good time to perform network traffic. Use {@link #isDefaultNetworkActive()} 1334 * to determine the current state of the system's default network after registering the 1335 * listener. 1336 * <p> 1337 * If the process default network has been set with 1338 * {@link ConnectivityManager#setProcessDefaultNetwork} this function will not 1339 * reflect the process's default, but the system default. 1340 * 1341 * @param l The listener to be told when the network is active. 1342 */ 1343 public void addDefaultNetworkActiveListener(final OnNetworkActiveListener l) { 1344 INetworkActivityListener rl = new INetworkActivityListener.Stub() { 1345 @Override 1346 public void onNetworkActive() throws RemoteException { 1347 l.onNetworkActive(); 1348 } 1349 }; 1350 1351 try { 1352 getNetworkManagementService().registerNetworkActivityListener(rl); 1353 mNetworkActivityListeners.put(l, rl); 1354 } catch (RemoteException e) { 1355 } 1356 } 1357 1358 /** 1359 * Remove network active listener previously registered with 1360 * {@link #addDefaultNetworkActiveListener}. 1361 * 1362 * @param l Previously registered listener. 1363 */ 1364 public void removeDefaultNetworkActiveListener(OnNetworkActiveListener l) { 1365 INetworkActivityListener rl = mNetworkActivityListeners.get(l); 1366 if (rl == null) { 1367 throw new IllegalArgumentException("Listener not registered: " + l); 1368 } 1369 try { 1370 getNetworkManagementService().unregisterNetworkActivityListener(rl); 1371 } catch (RemoteException e) { 1372 } 1373 } 1374 1375 /** 1376 * Return whether the data network is currently active. An active network means that 1377 * it is currently in a high power state for performing data transmission. On some 1378 * types of networks, it may be expensive to move and stay in such a state, so it is 1379 * more power efficient to batch network traffic together when the radio is already in 1380 * this state. This method tells you whether right now is currently a good time to 1381 * initiate network traffic, as the network is already active. 1382 */ 1383 public boolean isDefaultNetworkActive() { 1384 try { 1385 return getNetworkManagementService().isNetworkActive(); 1386 } catch (RemoteException e) { 1387 } 1388 return false; 1389 } 1390 1391 /** 1392 * {@hide} 1393 */ 1394 public ConnectivityManager(IConnectivityManager service) { 1395 mService = checkNotNull(service, "missing IConnectivityManager"); 1396 } 1397 1398 /** {@hide} */ 1399 public static ConnectivityManager from(Context context) { 1400 return (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); 1401 } 1402 1403 /** {@hide */ 1404 public static final void enforceTetherChangePermission(Context context) { 1405 if (context.getResources().getStringArray( 1406 com.android.internal.R.array.config_mobile_hotspot_provision_app).length == 2) { 1407 // Have a provisioning app - must only let system apps (which check this app) 1408 // turn on tethering 1409 context.enforceCallingOrSelfPermission( 1410 android.Manifest.permission.CONNECTIVITY_INTERNAL, "ConnectivityService"); 1411 } else { 1412 context.enforceCallingOrSelfPermission( 1413 android.Manifest.permission.CHANGE_NETWORK_STATE, "ConnectivityService"); 1414 } 1415 } 1416 1417 /** 1418 * Get the set of tetherable, available interfaces. This list is limited by 1419 * device configuration and current interface existence. 1420 * 1421 * @return an array of 0 or more Strings of tetherable interface names. 1422 * 1423 * <p>This method requires the call to hold the permission 1424 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1425 * {@hide} 1426 */ 1427 public String[] getTetherableIfaces() { 1428 try { 1429 return mService.getTetherableIfaces(); 1430 } catch (RemoteException e) { 1431 return new String[0]; 1432 } 1433 } 1434 1435 /** 1436 * Get the set of tethered interfaces. 1437 * 1438 * @return an array of 0 or more String of currently tethered interface names. 1439 * 1440 * <p>This method requires the call to hold the permission 1441 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1442 * {@hide} 1443 */ 1444 public String[] getTetheredIfaces() { 1445 try { 1446 return mService.getTetheredIfaces(); 1447 } catch (RemoteException e) { 1448 return new String[0]; 1449 } 1450 } 1451 1452 /** 1453 * Get the set of interface names which attempted to tether but 1454 * failed. Re-attempting to tether may cause them to reset to the Tethered 1455 * state. Alternatively, causing the interface to be destroyed and recreated 1456 * may cause them to reset to the available state. 1457 * {@link ConnectivityManager#getLastTetherError} can be used to get more 1458 * information on the cause of the errors. 1459 * 1460 * @return an array of 0 or more String indicating the interface names 1461 * which failed to tether. 1462 * 1463 * <p>This method requires the call to hold the permission 1464 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1465 * {@hide} 1466 */ 1467 public String[] getTetheringErroredIfaces() { 1468 try { 1469 return mService.getTetheringErroredIfaces(); 1470 } catch (RemoteException e) { 1471 return new String[0]; 1472 } 1473 } 1474 1475 /** 1476 * Get the set of tethered dhcp ranges. 1477 * 1478 * @return an array of 0 or more {@code String} of tethered dhcp ranges. 1479 * {@hide} 1480 */ 1481 public String[] getTetheredDhcpRanges() { 1482 try { 1483 return mService.getTetheredDhcpRanges(); 1484 } catch (RemoteException e) { 1485 return new String[0]; 1486 } 1487 } 1488 1489 /** 1490 * Attempt to tether the named interface. This will setup a dhcp server 1491 * on the interface, forward and NAT IP packets and forward DNS requests 1492 * to the best active upstream network interface. Note that if no upstream 1493 * IP network interface is available, dhcp will still run and traffic will be 1494 * allowed between the tethered devices and this device, though upstream net 1495 * access will of course fail until an upstream network interface becomes 1496 * active. 1497 * 1498 * @param iface the interface name to tether. 1499 * @return error a {@code TETHER_ERROR} value indicating success or failure type 1500 * 1501 * <p>This method requires the call to hold the permission 1502 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1503 * {@hide} 1504 */ 1505 public int tether(String iface) { 1506 try { 1507 return mService.tether(iface); 1508 } catch (RemoteException e) { 1509 return TETHER_ERROR_SERVICE_UNAVAIL; 1510 } 1511 } 1512 1513 /** 1514 * Stop tethering the named interface. 1515 * 1516 * @param iface the interface name to untether. 1517 * @return error a {@code TETHER_ERROR} value indicating success or failure type 1518 * 1519 * <p>This method requires the call to hold the permission 1520 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1521 * {@hide} 1522 */ 1523 public int untether(String iface) { 1524 try { 1525 return mService.untether(iface); 1526 } catch (RemoteException e) { 1527 return TETHER_ERROR_SERVICE_UNAVAIL; 1528 } 1529 } 1530 1531 /** 1532 * Check if the device allows for tethering. It may be disabled via 1533 * {@code ro.tether.denied} system property, Settings.TETHER_SUPPORTED or 1534 * due to device configuration. 1535 * 1536 * @return a boolean - {@code true} indicating Tethering is supported. 1537 * 1538 * <p>This method requires the call to hold the permission 1539 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1540 * {@hide} 1541 */ 1542 public boolean isTetheringSupported() { 1543 try { 1544 return mService.isTetheringSupported(); 1545 } catch (RemoteException e) { 1546 return false; 1547 } 1548 } 1549 1550 /** 1551 * Get the list of regular expressions that define any tetherable 1552 * USB network interfaces. If USB tethering is not supported by the 1553 * device, this list should be empty. 1554 * 1555 * @return an array of 0 or more regular expression Strings defining 1556 * what interfaces are considered tetherable usb interfaces. 1557 * 1558 * <p>This method requires the call to hold the permission 1559 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1560 * {@hide} 1561 */ 1562 public String[] getTetherableUsbRegexs() { 1563 try { 1564 return mService.getTetherableUsbRegexs(); 1565 } catch (RemoteException e) { 1566 return new String[0]; 1567 } 1568 } 1569 1570 /** 1571 * Get the list of regular expressions that define any tetherable 1572 * Wifi network interfaces. If Wifi tethering is not supported by the 1573 * device, this list should be empty. 1574 * 1575 * @return an array of 0 or more regular expression Strings defining 1576 * what interfaces are considered tetherable wifi interfaces. 1577 * 1578 * <p>This method requires the call to hold the permission 1579 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1580 * {@hide} 1581 */ 1582 public String[] getTetherableWifiRegexs() { 1583 try { 1584 return mService.getTetherableWifiRegexs(); 1585 } catch (RemoteException e) { 1586 return new String[0]; 1587 } 1588 } 1589 1590 /** 1591 * Get the list of regular expressions that define any tetherable 1592 * Bluetooth network interfaces. If Bluetooth tethering is not supported by the 1593 * device, this list should be empty. 1594 * 1595 * @return an array of 0 or more regular expression Strings defining 1596 * what interfaces are considered tetherable bluetooth interfaces. 1597 * 1598 * <p>This method requires the call to hold the permission 1599 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1600 * {@hide} 1601 */ 1602 public String[] getTetherableBluetoothRegexs() { 1603 try { 1604 return mService.getTetherableBluetoothRegexs(); 1605 } catch (RemoteException e) { 1606 return new String[0]; 1607 } 1608 } 1609 1610 /** 1611 * Attempt to both alter the mode of USB and Tethering of USB. A 1612 * utility method to deal with some of the complexity of USB - will 1613 * attempt to switch to Rndis and subsequently tether the resulting 1614 * interface on {@code true} or turn off tethering and switch off 1615 * Rndis on {@code false}. 1616 * 1617 * @param enable a boolean - {@code true} to enable tethering 1618 * @return error a {@code TETHER_ERROR} value indicating success or failure type 1619 * 1620 * <p>This method requires the call to hold the permission 1621 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1622 * {@hide} 1623 */ 1624 public int setUsbTethering(boolean enable) { 1625 try { 1626 return mService.setUsbTethering(enable); 1627 } catch (RemoteException e) { 1628 return TETHER_ERROR_SERVICE_UNAVAIL; 1629 } 1630 } 1631 1632 /** {@hide} */ 1633 public static final int TETHER_ERROR_NO_ERROR = 0; 1634 /** {@hide} */ 1635 public static final int TETHER_ERROR_UNKNOWN_IFACE = 1; 1636 /** {@hide} */ 1637 public static final int TETHER_ERROR_SERVICE_UNAVAIL = 2; 1638 /** {@hide} */ 1639 public static final int TETHER_ERROR_UNSUPPORTED = 3; 1640 /** {@hide} */ 1641 public static final int TETHER_ERROR_UNAVAIL_IFACE = 4; 1642 /** {@hide} */ 1643 public static final int TETHER_ERROR_MASTER_ERROR = 5; 1644 /** {@hide} */ 1645 public static final int TETHER_ERROR_TETHER_IFACE_ERROR = 6; 1646 /** {@hide} */ 1647 public static final int TETHER_ERROR_UNTETHER_IFACE_ERROR = 7; 1648 /** {@hide} */ 1649 public static final int TETHER_ERROR_ENABLE_NAT_ERROR = 8; 1650 /** {@hide} */ 1651 public static final int TETHER_ERROR_DISABLE_NAT_ERROR = 9; 1652 /** {@hide} */ 1653 public static final int TETHER_ERROR_IFACE_CFG_ERROR = 10; 1654 1655 /** 1656 * Get a more detailed error code after a Tethering or Untethering 1657 * request asynchronously failed. 1658 * 1659 * @param iface The name of the interface of interest 1660 * @return error The error code of the last error tethering or untethering the named 1661 * interface 1662 * 1663 * <p>This method requires the call to hold the permission 1664 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1665 * {@hide} 1666 */ 1667 public int getLastTetherError(String iface) { 1668 try { 1669 return mService.getLastTetherError(iface); 1670 } catch (RemoteException e) { 1671 return TETHER_ERROR_SERVICE_UNAVAIL; 1672 } 1673 } 1674 1675 /** 1676 * Report network connectivity status. This is currently used only 1677 * to alter status bar UI. 1678 * 1679 * @param networkType The type of network you want to report on 1680 * @param percentage The quality of the connection 0 is bad, 100 is good 1681 * 1682 * <p>This method requires the call to hold the permission 1683 * {@link android.Manifest.permission#STATUS_BAR}. 1684 * {@hide} 1685 */ 1686 public void reportInetCondition(int networkType, int percentage) { 1687 try { 1688 mService.reportInetCondition(networkType, percentage); 1689 } catch (RemoteException e) { 1690 } 1691 } 1692 1693 /** 1694 * Report a problem network to the framework. This provides a hint to the system 1695 * that there might be connectivity problems on this network and may cause 1696 * the framework to re-evaluate network connectivity and/or switch to another 1697 * network. 1698 * 1699 * @param network The {@link Network} the application was attempting to use 1700 * or {@code null} to indicate the current default network. 1701 */ 1702 public void reportBadNetwork(Network network) { 1703 try { 1704 mService.reportBadNetwork(network); 1705 } catch (RemoteException e) { 1706 } 1707 } 1708 1709 /** 1710 * Set a network-independent global http proxy. This is not normally what you want 1711 * for typical HTTP proxies - they are general network dependent. However if you're 1712 * doing something unusual like general internal filtering this may be useful. On 1713 * a private network where the proxy is not accessible, you may break HTTP using this. 1714 * 1715 * @param p The a {@link ProxyInfo} object defining the new global 1716 * HTTP proxy. A {@code null} value will clear the global HTTP proxy. 1717 * 1718 * <p>This method requires the call to hold the permission 1719 * android.Manifest.permission#CONNECTIVITY_INTERNAL. 1720 * @hide 1721 */ 1722 public void setGlobalProxy(ProxyInfo p) { 1723 try { 1724 mService.setGlobalProxy(p); 1725 } catch (RemoteException e) { 1726 } 1727 } 1728 1729 /** 1730 * Retrieve any network-independent global HTTP proxy. 1731 * 1732 * @return {@link ProxyInfo} for the current global HTTP proxy or {@code null} 1733 * if no global HTTP proxy is set. 1734 * 1735 * <p>This method requires the call to hold the permission 1736 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1737 * @hide 1738 */ 1739 public ProxyInfo getGlobalProxy() { 1740 try { 1741 return mService.getGlobalProxy(); 1742 } catch (RemoteException e) { 1743 return null; 1744 } 1745 } 1746 1747 /** 1748 * Get the HTTP proxy settings for the current default network. Note that 1749 * if a global proxy is set, it will override any per-network setting. 1750 * 1751 * @return the {@link ProxyInfo} for the current HTTP proxy, or {@code null} if no 1752 * HTTP proxy is active. 1753 * 1754 * <p>This method requires the call to hold the permission 1755 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1756 * {@hide} 1757 * @deprecated Deprecated in favor of {@link #getLinkProperties} 1758 */ 1759 public ProxyInfo getProxy() { 1760 try { 1761 return mService.getProxy(); 1762 } catch (RemoteException e) { 1763 return null; 1764 } 1765 } 1766 1767 /** 1768 * Sets a secondary requirement bit for the given networkType. 1769 * This requirement bit is generally under the control of the carrier 1770 * or its agents and is not directly controlled by the user. 1771 * 1772 * @param networkType The network who's dependence has changed 1773 * @param met Boolean - true if network use is OK, false if not 1774 * 1775 * <p>This method requires the call to hold the permission 1776 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL}. 1777 * {@hide} 1778 */ 1779 public void setDataDependency(int networkType, boolean met) { 1780 try { 1781 mService.setDataDependency(networkType, met); 1782 } catch (RemoteException e) { 1783 } 1784 } 1785 1786 /** 1787 * Returns true if the hardware supports the given network type 1788 * else it returns false. This doesn't indicate we have coverage 1789 * or are authorized onto a network, just whether or not the 1790 * hardware supports it. For example a GSM phone without a SIM 1791 * should still return {@code true} for mobile data, but a wifi only 1792 * tablet would return {@code false}. 1793 * 1794 * @param networkType The network type we'd like to check 1795 * @return {@code true} if supported, else {@code false} 1796 * 1797 * <p>This method requires the call to hold the permission 1798 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1799 * @hide 1800 */ 1801 public boolean isNetworkSupported(int networkType) { 1802 try { 1803 return mService.isNetworkSupported(networkType); 1804 } catch (RemoteException e) {} 1805 return false; 1806 } 1807 1808 /** 1809 * Returns if the currently active data network is metered. A network is 1810 * classified as metered when the user is sensitive to heavy data usage on 1811 * that connection due to monetary costs, data limitations or 1812 * battery/performance issues. You should check this before doing large 1813 * data transfers, and warn the user or delay the operation until another 1814 * network is available. 1815 * 1816 * @return {@code true} if large transfers should be avoided, otherwise 1817 * {@code false}. 1818 * 1819 * <p>This method requires the call to hold the permission 1820 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1821 */ 1822 public boolean isActiveNetworkMetered() { 1823 try { 1824 return mService.isActiveNetworkMetered(); 1825 } catch (RemoteException e) { 1826 return false; 1827 } 1828 } 1829 1830 /** 1831 * If the LockdownVpn mechanism is enabled, updates the vpn 1832 * with a reload of its profile. 1833 * 1834 * @return a boolean with {@code} indicating success 1835 * 1836 * <p>This method can only be called by the system UID 1837 * {@hide} 1838 */ 1839 public boolean updateLockdownVpn() { 1840 try { 1841 return mService.updateLockdownVpn(); 1842 } catch (RemoteException e) { 1843 return false; 1844 } 1845 } 1846 1847 /** 1848 * Signal that the captive portal check on the indicated network 1849 * is complete and whether its a captive portal or not. 1850 * 1851 * @param info the {@link NetworkInfo} object for the networkType 1852 * in question. 1853 * @param isCaptivePortal true/false. 1854 * 1855 * <p>This method requires the call to hold the permission 1856 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL}. 1857 * {@hide} 1858 */ 1859 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 1860 try { 1861 mService.captivePortalCheckCompleted(info, isCaptivePortal); 1862 } catch (RemoteException e) { 1863 } 1864 } 1865 1866 /** 1867 * Supply the backend messenger for a network tracker 1868 * 1869 * @param networkType NetworkType to set 1870 * @param messenger {@link Messenger} 1871 * {@hide} 1872 */ 1873 public void supplyMessenger(int networkType, Messenger messenger) { 1874 try { 1875 mService.supplyMessenger(networkType, messenger); 1876 } catch (RemoteException e) { 1877 } 1878 } 1879 1880 /** 1881 * Check mobile provisioning. 1882 * 1883 * @param suggestedTimeOutMs, timeout in milliseconds 1884 * 1885 * @return time out that will be used, maybe less that suggestedTimeOutMs 1886 * -1 if an error. 1887 * 1888 * {@hide} 1889 */ 1890 public int checkMobileProvisioning(int suggestedTimeOutMs) { 1891 int timeOutMs = -1; 1892 try { 1893 timeOutMs = mService.checkMobileProvisioning(suggestedTimeOutMs); 1894 } catch (RemoteException e) { 1895 } 1896 return timeOutMs; 1897 } 1898 1899 /** 1900 * Get the mobile provisioning url. 1901 * {@hide} 1902 */ 1903 public String getMobileProvisioningUrl() { 1904 try { 1905 return mService.getMobileProvisioningUrl(); 1906 } catch (RemoteException e) { 1907 } 1908 return null; 1909 } 1910 1911 /** 1912 * Get the mobile redirected provisioning url. 1913 * {@hide} 1914 */ 1915 public String getMobileRedirectedProvisioningUrl() { 1916 try { 1917 return mService.getMobileRedirectedProvisioningUrl(); 1918 } catch (RemoteException e) { 1919 } 1920 return null; 1921 } 1922 1923 /** 1924 * get the information about a specific network link 1925 * @hide 1926 */ 1927 public LinkQualityInfo getLinkQualityInfo(int networkType) { 1928 try { 1929 LinkQualityInfo li = mService.getLinkQualityInfo(networkType); 1930 return li; 1931 } catch (RemoteException e) { 1932 return null; 1933 } 1934 } 1935 1936 /** 1937 * get the information of currently active network link 1938 * @hide 1939 */ 1940 public LinkQualityInfo getActiveLinkQualityInfo() { 1941 try { 1942 LinkQualityInfo li = mService.getActiveLinkQualityInfo(); 1943 return li; 1944 } catch (RemoteException e) { 1945 return null; 1946 } 1947 } 1948 1949 /** 1950 * get the information of all network links 1951 * @hide 1952 */ 1953 public LinkQualityInfo[] getAllLinkQualityInfo() { 1954 try { 1955 LinkQualityInfo[] li = mService.getAllLinkQualityInfo(); 1956 return li; 1957 } catch (RemoteException e) { 1958 return null; 1959 } 1960 } 1961 1962 /** 1963 * Set sign in error notification to visible or in visible 1964 * 1965 * @param visible 1966 * @param networkType 1967 * 1968 * {@hide} 1969 */ 1970 public void setProvisioningNotificationVisible(boolean visible, int networkType, 1971 String action) { 1972 try { 1973 mService.setProvisioningNotificationVisible(visible, networkType, action); 1974 } catch (RemoteException e) { 1975 } 1976 } 1977 1978 /** 1979 * Set the value for enabling/disabling airplane mode 1980 * 1981 * @param enable whether to enable airplane mode or not 1982 * 1983 * <p>This method requires the call to hold the permission 1984 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL}. 1985 * @hide 1986 */ 1987 public void setAirplaneMode(boolean enable) { 1988 try { 1989 mService.setAirplaneMode(enable); 1990 } catch (RemoteException e) { 1991 } 1992 } 1993 1994 /** {@hide} */ 1995 public void registerNetworkFactory(Messenger messenger, String name) { 1996 try { 1997 mService.registerNetworkFactory(messenger, name); 1998 } catch (RemoteException e) { } 1999 } 2000 2001 /** {@hide} */ 2002 public void unregisterNetworkFactory(Messenger messenger) { 2003 try { 2004 mService.unregisterNetworkFactory(messenger); 2005 } catch (RemoteException e) { } 2006 } 2007 2008 /** {@hide} */ 2009 public void registerNetworkAgent(Messenger messenger, NetworkInfo ni, LinkProperties lp, 2010 NetworkCapabilities nc, int score, NetworkMisc misc) { 2011 try { 2012 mService.registerNetworkAgent(messenger, ni, lp, nc, score, misc); 2013 } catch (RemoteException e) { } 2014 } 2015 2016 /** 2017 * Base class for NetworkRequest callbacks. Used for notifications about network 2018 * changes. Should be extended by applications wanting notifications. 2019 */ 2020 public static class NetworkCallback { 2021 /** @hide */ 2022 public static final int PRECHECK = 1; 2023 /** @hide */ 2024 public static final int AVAILABLE = 2; 2025 /** @hide */ 2026 public static final int LOSING = 3; 2027 /** @hide */ 2028 public static final int LOST = 4; 2029 /** @hide */ 2030 public static final int UNAVAIL = 5; 2031 /** @hide */ 2032 public static final int CAP_CHANGED = 6; 2033 /** @hide */ 2034 public static final int PROP_CHANGED = 7; 2035 /** @hide */ 2036 public static final int CANCELED = 8; 2037 2038 /** 2039 * @hide 2040 * Called whenever the framework connects to a network that it may use to 2041 * satisfy this request 2042 */ 2043 public void onPreCheck(Network network) {} 2044 2045 /** 2046 * Called when the framework connects and has declared new network ready for use. 2047 * This callback may be called more than once if the {@link Network} that is 2048 * satisfying the request changes. 2049 * 2050 * @param network The {@link Network} of the satisfying network. 2051 */ 2052 public void onAvailable(Network network) {} 2053 2054 /** 2055 * Called when the network is about to be disconnected. Often paired with an 2056 * {@link NetworkCallback#onAvailable} call with the new replacement network 2057 * for graceful handover. This may not be called if we have a hard loss 2058 * (loss without warning). This may be followed by either a 2059 * {@link NetworkCallback#onLost} call or a 2060 * {@link NetworkCallback#onAvailable} call for this network depending 2061 * on whether we lose or regain it. 2062 * 2063 * @param network The {@link Network} that is about to be disconnected. 2064 * @param maxMsToLive The time in ms the framework will attempt to keep the 2065 * network connected. Note that the network may suffer a 2066 * hard loss at any time. 2067 */ 2068 public void onLosing(Network network, int maxMsToLive) {} 2069 2070 /** 2071 * Called when the framework has a hard loss of the network or when the 2072 * graceful failure ends. 2073 * 2074 * @param network The {@link Network} lost. 2075 */ 2076 public void onLost(Network network) {} 2077 2078 /** 2079 * Called if no network is found in the given timeout time. If no timeout is given, 2080 * this will not be called. 2081 * @hide 2082 */ 2083 public void onUnavailable() {} 2084 2085 /** 2086 * Called when the network the framework connected to for this request 2087 * changes capabilities but still satisfies the stated need. 2088 * 2089 * @param network The {@link Network} whose capabilities have changed. 2090 * @param networkCapabilities The new {@link NetworkCapabilities} for this network. 2091 */ 2092 public void onCapabilitiesChanged(Network network, 2093 NetworkCapabilities networkCapabilities) {} 2094 2095 /** 2096 * Called when the network the framework connected to for this request 2097 * changes {@link LinkProperties}. 2098 * 2099 * @param network The {@link Network} whose link properties have changed. 2100 * @param linkProperties The new {@link LinkProperties} for this network. 2101 */ 2102 public void onLinkPropertiesChanged(Network network, LinkProperties linkProperties) {} 2103 2104 private NetworkRequest networkRequest; 2105 } 2106 2107 private static final int BASE = Protocol.BASE_CONNECTIVITY_MANAGER; 2108 /** @hide obj = pair(NetworkRequest, Network) */ 2109 public static final int CALLBACK_PRECHECK = BASE + 1; 2110 /** @hide obj = pair(NetworkRequest, Network) */ 2111 public static final int CALLBACK_AVAILABLE = BASE + 2; 2112 /** @hide obj = pair(NetworkRequest, Network), arg1 = ttl */ 2113 public static final int CALLBACK_LOSING = BASE + 3; 2114 /** @hide obj = pair(NetworkRequest, Network) */ 2115 public static final int CALLBACK_LOST = BASE + 4; 2116 /** @hide obj = NetworkRequest */ 2117 public static final int CALLBACK_UNAVAIL = BASE + 5; 2118 /** @hide obj = pair(NetworkRequest, Network) */ 2119 public static final int CALLBACK_CAP_CHANGED = BASE + 6; 2120 /** @hide obj = pair(NetworkRequest, Network) */ 2121 public static final int CALLBACK_IP_CHANGED = BASE + 7; 2122 /** @hide obj = NetworkRequest */ 2123 public static final int CALLBACK_RELEASED = BASE + 8; 2124 /** @hide */ 2125 public static final int CALLBACK_EXIT = BASE + 9; 2126 /** @hide obj = NetworkCapabilities, arg1 = seq number */ 2127 private static final int EXPIRE_LEGACY_REQUEST = BASE + 10; 2128 2129 private class CallbackHandler extends Handler { 2130 private final HashMap<NetworkRequest, NetworkCallback>mCallbackMap; 2131 private final AtomicInteger mRefCount; 2132 private static final String TAG = "ConnectivityManager.CallbackHandler"; 2133 private final ConnectivityManager mCm; 2134 2135 CallbackHandler(Looper looper, HashMap<NetworkRequest, NetworkCallback>callbackMap, 2136 AtomicInteger refCount, ConnectivityManager cm) { 2137 super(looper); 2138 mCallbackMap = callbackMap; 2139 mRefCount = refCount; 2140 mCm = cm; 2141 } 2142 2143 @Override 2144 public void handleMessage(Message message) { 2145 Log.d(TAG, "CM callback handler got msg " + message.what); 2146 switch (message.what) { 2147 case CALLBACK_PRECHECK: { 2148 NetworkRequest request = (NetworkRequest)getObject(message, 2149 NetworkRequest.class); 2150 NetworkCallback callbacks = getCallbacks(request); 2151 if (callbacks != null) { 2152 callbacks.onPreCheck((Network)getObject(message, Network.class)); 2153 } else { 2154 Log.e(TAG, "callback not found for PRECHECK message"); 2155 } 2156 break; 2157 } 2158 case CALLBACK_AVAILABLE: { 2159 NetworkRequest request = (NetworkRequest)getObject(message, 2160 NetworkRequest.class); 2161 NetworkCallback callbacks = getCallbacks(request); 2162 if (callbacks != null) { 2163 callbacks.onAvailable((Network)getObject(message, Network.class)); 2164 } else { 2165 Log.e(TAG, "callback not found for AVAILABLE message"); 2166 } 2167 break; 2168 } 2169 case CALLBACK_LOSING: { 2170 NetworkRequest request = (NetworkRequest)getObject(message, 2171 NetworkRequest.class); 2172 NetworkCallback callbacks = getCallbacks(request); 2173 if (callbacks != null) { 2174 callbacks.onLosing((Network)getObject(message, Network.class), 2175 message.arg1); 2176 } else { 2177 Log.e(TAG, "callback not found for LOSING message"); 2178 } 2179 break; 2180 } 2181 case CALLBACK_LOST: { 2182 NetworkRequest request = (NetworkRequest)getObject(message, 2183 NetworkRequest.class); 2184 2185 NetworkCallback callbacks = getCallbacks(request); 2186 if (callbacks != null) { 2187 callbacks.onLost((Network)getObject(message, Network.class)); 2188 } else { 2189 Log.e(TAG, "callback not found for LOST message"); 2190 } 2191 break; 2192 } 2193 case CALLBACK_UNAVAIL: { 2194 NetworkRequest request = (NetworkRequest)getObject(message, 2195 NetworkRequest.class); 2196 NetworkCallback callbacks = null; 2197 synchronized(mCallbackMap) { 2198 callbacks = mCallbackMap.get(request); 2199 } 2200 if (callbacks != null) { 2201 callbacks.onUnavailable(); 2202 } else { 2203 Log.e(TAG, "callback not found for UNAVAIL message"); 2204 } 2205 break; 2206 } 2207 case CALLBACK_CAP_CHANGED: { 2208 NetworkRequest request = (NetworkRequest)getObject(message, 2209 NetworkRequest.class); 2210 NetworkCallback callbacks = getCallbacks(request); 2211 if (callbacks != null) { 2212 Network network = (Network)getObject(message, Network.class); 2213 NetworkCapabilities cap = (NetworkCapabilities)getObject(message, 2214 NetworkCapabilities.class); 2215 2216 callbacks.onCapabilitiesChanged(network, cap); 2217 } else { 2218 Log.e(TAG, "callback not found for CAP_CHANGED message"); 2219 } 2220 break; 2221 } 2222 case CALLBACK_IP_CHANGED: { 2223 NetworkRequest request = (NetworkRequest)getObject(message, 2224 NetworkRequest.class); 2225 NetworkCallback callbacks = getCallbacks(request); 2226 if (callbacks != null) { 2227 Network network = (Network)getObject(message, Network.class); 2228 LinkProperties lp = (LinkProperties)getObject(message, 2229 LinkProperties.class); 2230 2231 callbacks.onLinkPropertiesChanged(network, lp); 2232 } else { 2233 Log.e(TAG, "callback not found for IP_CHANGED message"); 2234 } 2235 break; 2236 } 2237 case CALLBACK_RELEASED: { 2238 NetworkRequest req = (NetworkRequest)getObject(message, NetworkRequest.class); 2239 NetworkCallback callbacks = null; 2240 synchronized(mCallbackMap) { 2241 callbacks = mCallbackMap.remove(req); 2242 } 2243 if (callbacks != null) { 2244 synchronized(mRefCount) { 2245 if (mRefCount.decrementAndGet() == 0) { 2246 getLooper().quit(); 2247 } 2248 } 2249 } else { 2250 Log.e(TAG, "callback not found for CANCELED message"); 2251 } 2252 break; 2253 } 2254 case CALLBACK_EXIT: { 2255 Log.d(TAG, "Listener quiting"); 2256 getLooper().quit(); 2257 break; 2258 } 2259 case EXPIRE_LEGACY_REQUEST: { 2260 expireRequest((NetworkCapabilities)message.obj, message.arg1); 2261 break; 2262 } 2263 } 2264 } 2265 2266 private Object getObject(Message msg, Class c) { 2267 return msg.getData().getParcelable(c.getSimpleName()); 2268 } 2269 private NetworkCallback getCallbacks(NetworkRequest req) { 2270 synchronized(mCallbackMap) { 2271 return mCallbackMap.get(req); 2272 } 2273 } 2274 } 2275 2276 private void incCallbackHandlerRefCount() { 2277 synchronized(sCallbackRefCount) { 2278 if (sCallbackRefCount.incrementAndGet() == 1) { 2279 // TODO - switch this over to a ManagerThread or expire it when done 2280 HandlerThread callbackThread = new HandlerThread("ConnectivityManager"); 2281 callbackThread.start(); 2282 sCallbackHandler = new CallbackHandler(callbackThread.getLooper(), 2283 sNetworkCallback, sCallbackRefCount, this); 2284 } 2285 } 2286 } 2287 2288 private void decCallbackHandlerRefCount() { 2289 synchronized(sCallbackRefCount) { 2290 if (sCallbackRefCount.decrementAndGet() == 0) { 2291 sCallbackHandler.obtainMessage(CALLBACK_EXIT).sendToTarget(); 2292 sCallbackHandler = null; 2293 } 2294 } 2295 } 2296 2297 static final HashMap<NetworkRequest, NetworkCallback> sNetworkCallback = 2298 new HashMap<NetworkRequest, NetworkCallback>(); 2299 static final AtomicInteger sCallbackRefCount = new AtomicInteger(0); 2300 static CallbackHandler sCallbackHandler = null; 2301 2302 private final static int LISTEN = 1; 2303 private final static int REQUEST = 2; 2304 2305 private NetworkRequest sendRequestForNetwork(NetworkCapabilities need, 2306 NetworkCallback networkCallback, int timeoutSec, int action, 2307 int legacyType) { 2308 if (networkCallback == null) { 2309 throw new IllegalArgumentException("null NetworkCallback"); 2310 } 2311 if (need == null) throw new IllegalArgumentException("null NetworkCapabilities"); 2312 try { 2313 incCallbackHandlerRefCount(); 2314 synchronized(sNetworkCallback) { 2315 if (action == LISTEN) { 2316 networkCallback.networkRequest = mService.listenForNetwork(need, 2317 new Messenger(sCallbackHandler), new Binder()); 2318 } else { 2319 networkCallback.networkRequest = mService.requestNetwork(need, 2320 new Messenger(sCallbackHandler), timeoutSec, new Binder(), legacyType); 2321 } 2322 if (networkCallback.networkRequest != null) { 2323 sNetworkCallback.put(networkCallback.networkRequest, networkCallback); 2324 } 2325 } 2326 } catch (RemoteException e) {} 2327 if (networkCallback.networkRequest == null) decCallbackHandlerRefCount(); 2328 return networkCallback.networkRequest; 2329 } 2330 2331 /** 2332 * Request a network to satisfy a set of {@link NetworkCapabilities}. 2333 * 2334 * This {@link NetworkRequest} will live until released via 2335 * {@link #unregisterNetworkCallback} or the calling application exits. 2336 * Status of the request can be followed by listening to the various 2337 * callbacks described in {@link NetworkCallback}. The {@link Network} 2338 * can be used to direct traffic to the network. 2339 * 2340 * @param request {@link NetworkRequest} describing this request. 2341 * @param networkCallback The {@link NetworkCallback} to be utilized for this 2342 * request. Note the callback must not be shared - they 2343 * uniquely specify this request. 2344 */ 2345 public void requestNetwork(NetworkRequest request, NetworkCallback networkCallback) { 2346 sendRequestForNetwork(request.networkCapabilities, networkCallback, 0, 2347 REQUEST, inferLegacyTypeForNetworkCapabilities(request.networkCapabilities)); 2348 } 2349 2350 /** 2351 * Request a network to satisfy a set of {@link NetworkCapabilities}, limited 2352 * by a timeout. 2353 * 2354 * This function behaves identically to the non-timedout version, but if a suitable 2355 * network is not found within the given time (in milliseconds) the 2356 * {@link NetworkCallback#unavailable} callback is called. The request must 2357 * still be released normally by calling {@link releaseNetworkRequest}. 2358 * @param request {@link NetworkRequest} describing this request. 2359 * @param networkCallback The callbacks to be utilized for this request. Note 2360 * the callbacks must not be shared - they uniquely specify 2361 * this request. 2362 * @param timeoutMs The time in milliseconds to attempt looking for a suitable network 2363 * before {@link NetworkCallback#unavailable} is called. 2364 * @hide 2365 */ 2366 public void requestNetwork(NetworkRequest request, NetworkCallback networkCallback, 2367 int timeoutMs) { 2368 sendRequestForNetwork(request.networkCapabilities, networkCallback, timeoutMs, 2369 REQUEST, inferLegacyTypeForNetworkCapabilities(request.networkCapabilities)); 2370 } 2371 2372 /** 2373 * The maximum number of milliseconds the framework will look for a suitable network 2374 * during a timeout-equiped call to {@link requestNetwork}. 2375 * {@hide} 2376 */ 2377 public final static int MAX_NETWORK_REQUEST_TIMEOUT_MS = 100 * 60 * 1000; 2378 2379 /** 2380 * The lookup key for a {@link Network} object included with the intent after 2381 * successfully finding a network for the applications request. Retrieve it with 2382 * {@link android.content.Intent#getParcelableExtra(String)}. 2383 */ 2384 public static final String EXTRA_NETWORK = "android.net.extra.NETWORK"; 2385 2386 /** 2387 * The lookup key for a {@link NetworkRequest} object included with the intent after 2388 * successfully finding a network for the applications request. Retrieve it with 2389 * {@link android.content.Intent#getParcelableExtra(String)}. 2390 */ 2391 public static final String EXTRA_NETWORK_REQUEST = "android.net.extra.NETWORK_REQUEST"; 2392 2393 2394 /** 2395 * Request a network to satisfy a set of {@link NetworkCapabilities}. 2396 * 2397 * This function behaves identically to the version that takes a NetworkCallback, but instead 2398 * of {@link NetworkCallback} a {@link PendingIntent} is used. This means 2399 * the request may outlive the calling application and get called back when a suitable 2400 * network is found. 2401 * <p> 2402 * The operation is an Intent broadcast that goes to a broadcast receiver that 2403 * you registered with {@link Context#registerReceiver} or through the 2404 * <receiver> tag in an AndroidManifest.xml file 2405 * <p> 2406 * The operation Intent is delivered with two extras, a {@link Network} typed 2407 * extra called {@link #EXTRA_NETWORK} and a {@link NetworkRequest} 2408 * typed extra called {@link #EXTRA_NETWORK_REQUEST} containing 2409 * the original requests parameters. It is important to create a new, 2410 * {@link NetworkCallback} based request before completing the processing of the 2411 * Intent to reserve the network or it will be released shortly after the Intent 2412 * is processed. 2413 * <p> 2414 * If there is already an request for this Intent registered (with the equality of 2415 * two Intents defined by {@link Intent#filterEquals}), then it will be removed and 2416 * replaced by this one, effectively releasing the previous {@link NetworkRequest}. 2417 * <p> 2418 * The request may be released normally by calling 2419 * {@link #releaseNetworkRequest(android.app.PendingIntent)}. 2420 * 2421 * @param request {@link NetworkRequest} describing this request. 2422 * @param operation Action to perform when the network is available (corresponds 2423 * to the {@link NetworkCallback#onAvailable} call. Typically 2424 * comes from {@link PendingIntent#getBroadcast}. Cannot be null. 2425 */ 2426 public void requestNetwork(NetworkRequest request, PendingIntent operation) { 2427 checkPendingIntent(operation); 2428 try { 2429 mService.pendingRequestForNetwork(request.networkCapabilities, operation); 2430 } catch (RemoteException e) {} 2431 } 2432 2433 /** 2434 * Removes a request made via {@link #requestNetwork(NetworkRequest, android.app.PendingIntent)} 2435 * <p> 2436 * This method has the same behavior as {@link #unregisterNetworkCallback} with respect to 2437 * releasing network resources and disconnecting. 2438 * 2439 * @param operation A PendingIntent equal (as defined by {@link Intent#filterEquals}) to the 2440 * PendingIntent passed to 2441 * {@link #requestNetwork(NetworkRequest, android.app.PendingIntent)} with the 2442 * corresponding NetworkRequest you'd like to remove. Cannot be null. 2443 */ 2444 public void releaseNetworkRequest(PendingIntent operation) { 2445 checkPendingIntent(operation); 2446 try { 2447 mService.releasePendingNetworkRequest(operation); 2448 } catch (RemoteException e) {} 2449 } 2450 2451 private void checkPendingIntent(PendingIntent intent) { 2452 if (intent == null) { 2453 throw new IllegalArgumentException("PendingIntent cannot be null."); 2454 } 2455 } 2456 2457 /** 2458 * Registers to receive notifications about all networks which satisfy the given 2459 * {@link NetworkRequest}. The callbacks will continue to be called until 2460 * either the application exits or {@link #unregisterNetworkCallback} is called 2461 * 2462 * @param request {@link NetworkRequest} describing this request. 2463 * @param networkCallback The {@link NetworkCallback} that the system will call as suitable 2464 * networks change state. 2465 */ 2466 public void registerNetworkCallback(NetworkRequest request, NetworkCallback networkCallback) { 2467 sendRequestForNetwork(request.networkCapabilities, networkCallback, 0, LISTEN, TYPE_NONE); 2468 } 2469 2470 /** 2471 * Unregisters callbacks about and possibly releases networks originating from 2472 * {@link #requestNetwork} and {@link #registerNetworkCallback} calls. If the 2473 * given {@code NetworkCallback} had previously been used with {@code #requestNetwork}, 2474 * any networks that had been connected to only to satisfy that request will be 2475 * disconnected. 2476 * 2477 * @param networkCallback The {@link NetworkCallback} used when making the request. 2478 */ 2479 public void unregisterNetworkCallback(NetworkCallback networkCallback) { 2480 if (networkCallback == null || networkCallback.networkRequest == null || 2481 networkCallback.networkRequest.requestId == REQUEST_ID_UNSET) { 2482 throw new IllegalArgumentException("Invalid NetworkCallback"); 2483 } 2484 try { 2485 mService.releaseNetworkRequest(networkCallback.networkRequest); 2486 } catch (RemoteException e) {} 2487 } 2488 2489 /** 2490 * Binds the current process to {@code network}. All Sockets created in the future 2491 * (and not explicitly bound via a bound SocketFactory from 2492 * {@link Network#getSocketFactory() Network.getSocketFactory()}) will be bound to 2493 * {@code network}. All host name resolutions will be limited to {@code network} as well. 2494 * Note that if {@code network} ever disconnects, all Sockets created in this way will cease to 2495 * work and all host name resolutions will fail. This is by design so an application doesn't 2496 * accidentally use Sockets it thinks are still bound to a particular {@link Network}. 2497 * To clear binding pass {@code null} for {@code network}. Using individually bound 2498 * Sockets created by Network.getSocketFactory().createSocket() and 2499 * performing network-specific host name resolutions via 2500 * {@link Network#getAllByName Network.getAllByName} is preferred to calling 2501 * {@code setProcessDefaultNetwork}. 2502 * 2503 * @param network The {@link Network} to bind the current process to, or {@code null} to clear 2504 * the current binding. 2505 * @return {@code true} on success, {@code false} if the {@link Network} is no longer valid. 2506 */ 2507 public static boolean setProcessDefaultNetwork(Network network) { 2508 int netId = (network == null) ? NETID_UNSET : network.netId; 2509 if (netId == NetworkUtils.getNetworkBoundToProcess()) { 2510 return true; 2511 } 2512 if (NetworkUtils.bindProcessToNetwork(netId)) { 2513 // Must flush DNS cache as new network may have different DNS resolutions. 2514 InetAddress.clearDnsCache(); 2515 // Must flush socket pool as idle sockets will be bound to previous network and may 2516 // cause subsequent fetches to be performed on old network. 2517 NetworkEventDispatcher.getInstance().onNetworkConfigurationChanged(); 2518 return true; 2519 } else { 2520 return false; 2521 } 2522 } 2523 2524 /** 2525 * Returns the {@link Network} currently bound to this process via 2526 * {@link #setProcessDefaultNetwork}, or {@code null} if no {@link Network} is explicitly bound. 2527 * 2528 * @return {@code Network} to which this process is bound, or {@code null}. 2529 */ 2530 public static Network getProcessDefaultNetwork() { 2531 int netId = NetworkUtils.getNetworkBoundToProcess(); 2532 if (netId == NETID_UNSET) return null; 2533 return new Network(netId); 2534 } 2535 2536 /** 2537 * Binds host resolutions performed by this process to {@code network}. 2538 * {@link #setProcessDefaultNetwork} takes precedence over this setting. 2539 * 2540 * @param network The {@link Network} to bind host resolutions from the current process to, or 2541 * {@code null} to clear the current binding. 2542 * @return {@code true} on success, {@code false} if the {@link Network} is no longer valid. 2543 * @hide 2544 * @deprecated This is strictly for legacy usage to support {@link #startUsingNetworkFeature}. 2545 */ 2546 public static boolean setProcessDefaultNetworkForHostResolution(Network network) { 2547 return NetworkUtils.bindProcessToNetworkForHostResolution( 2548 network == null ? NETID_UNSET : network.netId); 2549 } 2550} 2551