ConnectivityManager.java revision 37fbfa140aad2fa9cf4648def2838b04c2263e13
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 case TYPE_VPN: 513 return "VPN"; 514 default: 515 return Integer.toString(type); 516 } 517 } 518 519 /** 520 * Checks if a given type uses the cellular data connection. 521 * This should be replaced in the future by a network property. 522 * @param networkType the type to check 523 * @return a boolean - {@code true} if uses cellular network, else {@code false} 524 * {@hide} 525 */ 526 public static boolean isNetworkTypeMobile(int networkType) { 527 switch (networkType) { 528 case TYPE_MOBILE: 529 case TYPE_MOBILE_MMS: 530 case TYPE_MOBILE_SUPL: 531 case TYPE_MOBILE_DUN: 532 case TYPE_MOBILE_HIPRI: 533 case TYPE_MOBILE_FOTA: 534 case TYPE_MOBILE_IMS: 535 case TYPE_MOBILE_CBS: 536 case TYPE_MOBILE_IA: 537 case TYPE_MOBILE_EMERGENCY: 538 return true; 539 default: 540 return false; 541 } 542 } 543 544 /** 545 * Checks if the given network type is backed by a Wi-Fi radio. 546 * 547 * @hide 548 */ 549 public static boolean isNetworkTypeWifi(int networkType) { 550 switch (networkType) { 551 case TYPE_WIFI: 552 case TYPE_WIFI_P2P: 553 return true; 554 default: 555 return false; 556 } 557 } 558 559 /** 560 * Specifies the preferred network type. When the device has more 561 * than one type available the preferred network type will be used. 562 * 563 * @param preference the network type to prefer over all others. It is 564 * unspecified what happens to the old preferred network in the 565 * overall ordering. 566 * @deprecated Functionality has been removed as it no longer makes sense, 567 * with many more than two networks - we'd need an array to express 568 * preference. Instead we use dynamic network properties of 569 * the networks to describe their precedence. 570 */ 571 public void setNetworkPreference(int preference) { 572 } 573 574 /** 575 * Retrieves the current preferred network type. 576 * 577 * @return an integer representing the preferred network type 578 * 579 * <p>This method requires the caller to hold the permission 580 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 581 * @deprecated Functionality has been removed as it no longer makes sense, 582 * with many more than two networks - we'd need an array to express 583 * preference. Instead we use dynamic network properties of 584 * the networks to describe their precedence. 585 */ 586 public int getNetworkPreference() { 587 return TYPE_NONE; 588 } 589 590 /** 591 * Returns details about the currently active default data network. When 592 * connected, this network is the default route for outgoing connections. 593 * You should always check {@link NetworkInfo#isConnected()} before initiating 594 * network traffic. This may return {@code null} when there is no default 595 * network. 596 * 597 * @return a {@link NetworkInfo} object for the current default network 598 * or {@code null} if no network default network is currently active 599 * 600 * <p>This method requires the call to hold the permission 601 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 602 */ 603 public NetworkInfo getActiveNetworkInfo() { 604 try { 605 return mService.getActiveNetworkInfo(); 606 } catch (RemoteException e) { 607 return null; 608 } 609 } 610 611 /** 612 * Returns details about the currently active default data network 613 * for a given uid. This is for internal use only to avoid spying 614 * other apps. 615 * 616 * @return a {@link NetworkInfo} object for the current default network 617 * for the given uid or {@code null} if no default network is 618 * available for the specified uid. 619 * 620 * <p>This method requires the caller to hold the permission 621 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL} 622 * {@hide} 623 */ 624 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 625 try { 626 return mService.getActiveNetworkInfoForUid(uid); 627 } catch (RemoteException e) { 628 return null; 629 } 630 } 631 632 /** 633 * Returns connection status information about a particular 634 * network type. 635 * 636 * @param networkType integer specifying which networkType in 637 * which you're interested. 638 * @return a {@link NetworkInfo} object for the requested 639 * network type or {@code null} if the type is not 640 * supported by the device. 641 * 642 * <p>This method requires the caller to hold the permission 643 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 644 */ 645 public NetworkInfo getNetworkInfo(int networkType) { 646 try { 647 return mService.getNetworkInfo(networkType); 648 } catch (RemoteException e) { 649 return null; 650 } 651 } 652 653 /** 654 * Returns connection status information about a particular 655 * Network. 656 * 657 * @param network {@link Network} specifying which network 658 * in which you're interested. 659 * @return a {@link NetworkInfo} object for the requested 660 * network or {@code null} if the {@code Network} 661 * is not valid. 662 * 663 * <p>This method requires the caller to hold the permission 664 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 665 */ 666 public NetworkInfo getNetworkInfo(Network network) { 667 try { 668 return mService.getNetworkInfoForNetwork(network); 669 } catch (RemoteException e) { 670 return null; 671 } 672 } 673 674 /** 675 * Returns connection status information about all network 676 * types supported by the device. 677 * 678 * @return an array of {@link NetworkInfo} objects. Check each 679 * {@link NetworkInfo#getType} for which type each applies. 680 * 681 * <p>This method requires the caller to hold the permission 682 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 683 */ 684 public NetworkInfo[] getAllNetworkInfo() { 685 try { 686 return mService.getAllNetworkInfo(); 687 } catch (RemoteException e) { 688 return null; 689 } 690 } 691 692 /** 693 * Returns the {@link Network} object currently serving a given type, or 694 * null if the given type is not connected. 695 * 696 * <p>This method requires the caller to hold the permission 697 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 698 * 699 * @hide 700 */ 701 public Network getNetworkForType(int networkType) { 702 try { 703 return mService.getNetworkForType(networkType); 704 } catch (RemoteException e) { 705 return null; 706 } 707 } 708 709 /** 710 * Returns an array of all {@link Network} currently tracked by the 711 * framework. 712 * 713 * @return an array of {@link Network} objects. 714 * 715 * <p>This method requires the caller to hold the permission 716 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 717 */ 718 public Network[] getAllNetworks() { 719 try { 720 return mService.getAllNetworks(); 721 } catch (RemoteException e) { 722 return null; 723 } 724 } 725 726 /** 727 * Returns details about the Provisioning or currently active default data network. When 728 * connected, this network is the default route for outgoing connections. 729 * You should always check {@link NetworkInfo#isConnected()} before initiating 730 * network traffic. This may return {@code null} when there is no default 731 * network. 732 * 733 * @return a {@link NetworkInfo} object for the current default network 734 * or {@code null} if no network default network is currently active 735 * 736 * <p>This method requires the call to hold the permission 737 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 738 * 739 * {@hide} 740 */ 741 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 742 try { 743 return mService.getProvisioningOrActiveNetworkInfo(); 744 } catch (RemoteException e) { 745 return null; 746 } 747 } 748 749 /** 750 * Returns the IP information for the current default network. 751 * 752 * @return a {@link LinkProperties} object describing the IP info 753 * for the current default network, or {@code null} if there 754 * is no current default network. 755 * 756 * <p>This method requires the call to hold the permission 757 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 758 * {@hide} 759 */ 760 public LinkProperties getActiveLinkProperties() { 761 try { 762 return mService.getActiveLinkProperties(); 763 } catch (RemoteException e) { 764 return null; 765 } 766 } 767 768 /** 769 * Returns the IP information for a given network type. 770 * 771 * @param networkType the network type of interest. 772 * @return a {@link LinkProperties} object describing the IP info 773 * for the given networkType, or {@code null} if there is 774 * no current default network. 775 * 776 * <p>This method requires the call to hold the permission 777 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 778 * {@hide} 779 */ 780 public LinkProperties getLinkProperties(int networkType) { 781 try { 782 return mService.getLinkPropertiesForType(networkType); 783 } catch (RemoteException e) { 784 return null; 785 } 786 } 787 788 /** 789 * Get the {@link LinkProperties} for the given {@link Network}. This 790 * will return {@code null} if the network is unknown. 791 * 792 * @param network The {@link Network} object identifying the network in question. 793 * @return The {@link LinkProperties} for the network, or {@code null}. 794 **/ 795 public LinkProperties getLinkProperties(Network network) { 796 try { 797 return mService.getLinkProperties(network); 798 } catch (RemoteException e) { 799 return null; 800 } 801 } 802 803 /** 804 * Get the {@link NetworkCapabilities} for the given {@link Network}. This 805 * will return {@code null} if the network is unknown. 806 * 807 * @param network The {@link Network} object identifying the network in question. 808 * @return The {@link NetworkCapabilities} for the network, or {@code null}. 809 */ 810 public NetworkCapabilities getNetworkCapabilities(Network network) { 811 try { 812 return mService.getNetworkCapabilities(network); 813 } catch (RemoteException e) { 814 return null; 815 } 816 } 817 818 /** 819 * Tells each network type to set its radio power state as directed. 820 * 821 * @param turnOn a boolean, {@code true} to turn the radios on, 822 * {@code false} to turn them off. 823 * @return a boolean, {@code true} indicating success. All network types 824 * will be tried, even if some fail. 825 * 826 * <p>This method requires the call to hold the permission 827 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 828 * {@hide} 829 */ 830// TODO - check for any callers and remove 831// public boolean setRadios(boolean turnOn) { 832// try { 833// return mService.setRadios(turnOn); 834// } catch (RemoteException e) { 835// return false; 836// } 837// } 838 839 /** 840 * Tells a given networkType to set its radio power state as directed. 841 * 842 * @param networkType the int networkType of interest. 843 * @param turnOn a boolean, {@code true} to turn the radio on, 844 * {@code} false to turn it off. 845 * @return a boolean, {@code true} indicating success. 846 * 847 * <p>This method requires the call to hold the permission 848 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 849 * {@hide} 850 */ 851// TODO - check for any callers and remove 852// public boolean setRadio(int networkType, boolean turnOn) { 853// try { 854// return mService.setRadio(networkType, turnOn); 855// } catch (RemoteException e) { 856// return false; 857// } 858// } 859 860 /** 861 * Tells the underlying networking system that the caller wants to 862 * begin using the named feature. The interpretation of {@code feature} 863 * is completely up to each networking implementation. 864 * <p>This method requires the caller to hold the permission 865 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 866 * @param networkType specifies which network the request pertains to 867 * @param feature the name of the feature to be used 868 * @return an integer value representing the outcome of the request. 869 * The interpretation of this value is specific to each networking 870 * implementation+feature combination, except that the value {@code -1} 871 * always indicates failure. 872 * 873 * @deprecated Deprecated in favor of the cleaner {@link #requestNetwork} api. 874 */ 875 public int startUsingNetworkFeature(int networkType, String feature) { 876 NetworkCapabilities netCap = networkCapabilitiesForFeature(networkType, feature); 877 if (netCap == null) { 878 Log.d(TAG, "Can't satisfy startUsingNetworkFeature for " + networkType + ", " + 879 feature); 880 return PhoneConstants.APN_REQUEST_FAILED; 881 } 882 883 NetworkRequest request = null; 884 synchronized (sLegacyRequests) { 885 if (LEGACY_DBG) { 886 Log.d(TAG, "Looking for legacyRequest for netCap with hash: " + netCap + " (" + 887 netCap.hashCode() + ")"); 888 Log.d(TAG, "sLegacyRequests has:"); 889 for (NetworkCapabilities nc : sLegacyRequests.keySet()) { 890 Log.d(TAG, " " + nc + " (" + nc.hashCode() + ")"); 891 } 892 } 893 LegacyRequest l = sLegacyRequests.get(netCap); 894 if (l != null) { 895 Log.d(TAG, "renewing startUsingNetworkFeature request " + l.networkRequest); 896 renewRequestLocked(l); 897 if (l.currentNetwork != null) { 898 return PhoneConstants.APN_ALREADY_ACTIVE; 899 } else { 900 return PhoneConstants.APN_REQUEST_STARTED; 901 } 902 } 903 904 request = requestNetworkForFeatureLocked(netCap); 905 } 906 if (request != null) { 907 Log.d(TAG, "starting startUsingNetworkFeature for request " + request); 908 return PhoneConstants.APN_REQUEST_STARTED; 909 } else { 910 Log.d(TAG, " request Failed"); 911 return PhoneConstants.APN_REQUEST_FAILED; 912 } 913 } 914 915 /** 916 * Tells the underlying networking system that the caller is finished 917 * using the named feature. The interpretation of {@code feature} 918 * is completely up to each networking implementation. 919 * <p>This method requires the caller to hold the permission 920 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 921 * @param networkType specifies which network the request pertains to 922 * @param feature the name of the feature that is no longer needed 923 * @return an integer value representing the outcome of the request. 924 * The interpretation of this value is specific to each networking 925 * implementation+feature combination, except that the value {@code -1} 926 * always indicates failure. 927 * 928 * @deprecated Deprecated in favor of the cleaner {@link #requestNetwork} api. 929 */ 930 public int stopUsingNetworkFeature(int networkType, String feature) { 931 NetworkCapabilities netCap = networkCapabilitiesForFeature(networkType, feature); 932 if (netCap == null) { 933 Log.d(TAG, "Can't satisfy stopUsingNetworkFeature for " + networkType + ", " + 934 feature); 935 return -1; 936 } 937 938 NetworkCallback networkCallback = removeRequestForFeature(netCap); 939 if (networkCallback != null) { 940 Log.d(TAG, "stopUsingNetworkFeature for " + networkType + ", " + feature); 941 unregisterNetworkCallback(networkCallback); 942 } 943 return 1; 944 } 945 946 /** 947 * Removes the NET_CAPABILITY_NOT_RESTRICTED capability from the given 948 * NetworkCapabilities object if all the capabilities it provides are 949 * typically provided by restricted networks. 950 * 951 * TODO: consider: 952 * - Moving to NetworkCapabilities 953 * - Renaming it to guessRestrictedCapability and make it set the 954 * restricted capability bit in addition to clearing it. 955 * @hide 956 */ 957 public static void maybeMarkCapabilitiesRestricted(NetworkCapabilities nc) { 958 for (int capability : nc.getCapabilities()) { 959 switch (capability) { 960 case NetworkCapabilities.NET_CAPABILITY_CBS: 961 case NetworkCapabilities.NET_CAPABILITY_DUN: 962 case NetworkCapabilities.NET_CAPABILITY_EIMS: 963 case NetworkCapabilities.NET_CAPABILITY_FOTA: 964 case NetworkCapabilities.NET_CAPABILITY_IA: 965 case NetworkCapabilities.NET_CAPABILITY_IMS: 966 case NetworkCapabilities.NET_CAPABILITY_RCS: 967 case NetworkCapabilities.NET_CAPABILITY_XCAP: 968 case NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED: //there by default 969 continue; 970 default: 971 // At least one capability usually provided by unrestricted 972 // networks. Conclude that this network is unrestricted. 973 return; 974 } 975 } 976 // All the capabilities are typically provided by restricted networks. 977 // Conclude that this network is restricted. 978 nc.removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 979 } 980 981 private NetworkCapabilities networkCapabilitiesForFeature(int networkType, String feature) { 982 if (networkType == TYPE_MOBILE) { 983 int cap = -1; 984 if ("enableMMS".equals(feature)) { 985 cap = NetworkCapabilities.NET_CAPABILITY_MMS; 986 } else if ("enableSUPL".equals(feature)) { 987 cap = NetworkCapabilities.NET_CAPABILITY_SUPL; 988 } else if ("enableDUN".equals(feature) || "enableDUNAlways".equals(feature)) { 989 cap = NetworkCapabilities.NET_CAPABILITY_DUN; 990 } else if ("enableHIPRI".equals(feature)) { 991 cap = NetworkCapabilities.NET_CAPABILITY_INTERNET; 992 } else if ("enableFOTA".equals(feature)) { 993 cap = NetworkCapabilities.NET_CAPABILITY_FOTA; 994 } else if ("enableIMS".equals(feature)) { 995 cap = NetworkCapabilities.NET_CAPABILITY_IMS; 996 } else if ("enableCBS".equals(feature)) { 997 cap = NetworkCapabilities.NET_CAPABILITY_CBS; 998 } else { 999 return null; 1000 } 1001 NetworkCapabilities netCap = new NetworkCapabilities(); 1002 netCap.addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR).addCapability(cap); 1003 maybeMarkCapabilitiesRestricted(netCap); 1004 return netCap; 1005 } else if (networkType == TYPE_WIFI) { 1006 if ("p2p".equals(feature)) { 1007 NetworkCapabilities netCap = new NetworkCapabilities(); 1008 netCap.addTransportType(NetworkCapabilities.TRANSPORT_WIFI); 1009 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_WIFI_P2P); 1010 maybeMarkCapabilitiesRestricted(netCap); 1011 return netCap; 1012 } 1013 } 1014 return null; 1015 } 1016 1017 /** 1018 * Guess what the network request was trying to say so that the resulting 1019 * network is accessible via the legacy (deprecated) API such as 1020 * requestRouteToHost. 1021 * This means we should try to be fairly preceise about transport and 1022 * capability but ignore things such as networkSpecifier. 1023 * If the request has more than one transport or capability it doesn't 1024 * match the old legacy requests (they selected only single transport/capability) 1025 * so this function cannot map the request to a single legacy type and 1026 * the resulting network will not be available to the legacy APIs. 1027 * 1028 * TODO - This should be removed when the legacy APIs are removed. 1029 */ 1030 private int inferLegacyTypeForNetworkCapabilities(NetworkCapabilities netCap) { 1031 if (netCap == null) { 1032 return TYPE_NONE; 1033 } 1034 1035 if (!netCap.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)) { 1036 return TYPE_NONE; 1037 } 1038 1039 String type = null; 1040 int result = TYPE_NONE; 1041 1042 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_CBS)) { 1043 type = "enableCBS"; 1044 result = TYPE_MOBILE_CBS; 1045 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_IMS)) { 1046 type = "enableIMS"; 1047 result = TYPE_MOBILE_IMS; 1048 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_FOTA)) { 1049 type = "enableFOTA"; 1050 result = TYPE_MOBILE_FOTA; 1051 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_DUN)) { 1052 type = "enableDUN"; 1053 result = TYPE_MOBILE_DUN; 1054 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_SUPL)) { 1055 type = "enableSUPL"; 1056 result = TYPE_MOBILE_SUPL; 1057 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_MMS)) { 1058 type = "enableMMS"; 1059 result = TYPE_MOBILE_MMS; 1060 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)) { 1061 type = "enableHIPRI"; 1062 result = TYPE_MOBILE_HIPRI; 1063 } 1064 if (type != null) { 1065 NetworkCapabilities testCap = networkCapabilitiesForFeature(TYPE_MOBILE, type); 1066 if (testCap.equalsNetCapabilities(netCap) && testCap.equalsTransportTypes(netCap)) { 1067 return result; 1068 } 1069 } 1070 return TYPE_NONE; 1071 } 1072 1073 private int legacyTypeForNetworkCapabilities(NetworkCapabilities netCap) { 1074 if (netCap == null) return TYPE_NONE; 1075 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_CBS)) { 1076 return TYPE_MOBILE_CBS; 1077 } 1078 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_IMS)) { 1079 return TYPE_MOBILE_IMS; 1080 } 1081 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_FOTA)) { 1082 return TYPE_MOBILE_FOTA; 1083 } 1084 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_DUN)) { 1085 return TYPE_MOBILE_DUN; 1086 } 1087 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_SUPL)) { 1088 return TYPE_MOBILE_SUPL; 1089 } 1090 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_MMS)) { 1091 return TYPE_MOBILE_MMS; 1092 } 1093 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)) { 1094 return TYPE_MOBILE_HIPRI; 1095 } 1096 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_WIFI_P2P)) { 1097 return TYPE_WIFI_P2P; 1098 } 1099 return TYPE_NONE; 1100 } 1101 1102 private static class LegacyRequest { 1103 NetworkCapabilities networkCapabilities; 1104 NetworkRequest networkRequest; 1105 int expireSequenceNumber; 1106 Network currentNetwork; 1107 int delay = -1; 1108 NetworkCallback networkCallback = new NetworkCallback() { 1109 @Override 1110 public void onAvailable(Network network) { 1111 currentNetwork = network; 1112 Log.d(TAG, "startUsingNetworkFeature got Network:" + network); 1113 setProcessDefaultNetworkForHostResolution(network); 1114 } 1115 @Override 1116 public void onLost(Network network) { 1117 if (network.equals(currentNetwork)) { 1118 currentNetwork = null; 1119 setProcessDefaultNetworkForHostResolution(null); 1120 } 1121 Log.d(TAG, "startUsingNetworkFeature lost Network:" + network); 1122 } 1123 }; 1124 } 1125 1126 private static HashMap<NetworkCapabilities, LegacyRequest> sLegacyRequests = 1127 new HashMap<NetworkCapabilities, LegacyRequest>(); 1128 1129 private NetworkRequest findRequestForFeature(NetworkCapabilities netCap) { 1130 synchronized (sLegacyRequests) { 1131 LegacyRequest l = sLegacyRequests.get(netCap); 1132 if (l != null) return l.networkRequest; 1133 } 1134 return null; 1135 } 1136 1137 private void renewRequestLocked(LegacyRequest l) { 1138 l.expireSequenceNumber++; 1139 Log.d(TAG, "renewing request to seqNum " + l.expireSequenceNumber); 1140 sendExpireMsgForFeature(l.networkCapabilities, l.expireSequenceNumber, l.delay); 1141 } 1142 1143 private void expireRequest(NetworkCapabilities netCap, int sequenceNum) { 1144 int ourSeqNum = -1; 1145 synchronized (sLegacyRequests) { 1146 LegacyRequest l = sLegacyRequests.get(netCap); 1147 if (l == null) return; 1148 ourSeqNum = l.expireSequenceNumber; 1149 if (l.expireSequenceNumber == sequenceNum) { 1150 unregisterNetworkCallback(l.networkCallback); 1151 sLegacyRequests.remove(netCap); 1152 } 1153 } 1154 Log.d(TAG, "expireRequest with " + ourSeqNum + ", " + sequenceNum); 1155 } 1156 1157 private NetworkRequest requestNetworkForFeatureLocked(NetworkCapabilities netCap) { 1158 int delay = -1; 1159 int type = legacyTypeForNetworkCapabilities(netCap); 1160 try { 1161 delay = mService.getRestoreDefaultNetworkDelay(type); 1162 } catch (RemoteException e) {} 1163 LegacyRequest l = new LegacyRequest(); 1164 l.networkCapabilities = netCap; 1165 l.delay = delay; 1166 l.expireSequenceNumber = 0; 1167 l.networkRequest = sendRequestForNetwork(netCap, l.networkCallback, 0, 1168 REQUEST, type); 1169 if (l.networkRequest == null) return null; 1170 sLegacyRequests.put(netCap, l); 1171 sendExpireMsgForFeature(netCap, l.expireSequenceNumber, delay); 1172 return l.networkRequest; 1173 } 1174 1175 private void sendExpireMsgForFeature(NetworkCapabilities netCap, int seqNum, int delay) { 1176 if (delay >= 0) { 1177 Log.d(TAG, "sending expire msg with seqNum " + seqNum + " and delay " + delay); 1178 Message msg = sCallbackHandler.obtainMessage(EXPIRE_LEGACY_REQUEST, seqNum, 0, netCap); 1179 sCallbackHandler.sendMessageDelayed(msg, delay); 1180 } 1181 } 1182 1183 private NetworkCallback removeRequestForFeature(NetworkCapabilities netCap) { 1184 synchronized (sLegacyRequests) { 1185 LegacyRequest l = sLegacyRequests.remove(netCap); 1186 if (l == null) return null; 1187 return l.networkCallback; 1188 } 1189 } 1190 1191 /** 1192 * Ensure that a network route exists to deliver traffic to the specified 1193 * host via the specified network interface. An attempt to add a route that 1194 * already exists is ignored, but treated as successful. 1195 * <p>This method requires the caller to hold the permission 1196 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1197 * @param networkType the type of the network over which traffic to the specified 1198 * host is to be routed 1199 * @param hostAddress the IP address of the host to which the route is desired 1200 * @return {@code true} on success, {@code false} on failure 1201 * 1202 * @deprecated Deprecated in favor of the {@link #requestNetwork}, 1203 * {@link #setProcessDefaultNetwork} and {@link Network#getSocketFactory} api. 1204 */ 1205 public boolean requestRouteToHost(int networkType, int hostAddress) { 1206 return requestRouteToHostAddress(networkType, NetworkUtils.intToInetAddress(hostAddress)); 1207 } 1208 1209 /** 1210 * Ensure that a network route exists to deliver traffic to the specified 1211 * host via the specified network interface. An attempt to add a route that 1212 * already exists is ignored, but treated as successful. 1213 * <p>This method requires the caller to hold the permission 1214 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1215 * @param networkType the type of the network over which traffic to the specified 1216 * host is to be routed 1217 * @param hostAddress the IP address of the host to which the route is desired 1218 * @return {@code true} on success, {@code false} on failure 1219 * @hide 1220 * @deprecated Deprecated in favor of the {@link #requestNetwork} and 1221 * {@link #setProcessDefaultNetwork} api. 1222 */ 1223 public boolean requestRouteToHostAddress(int networkType, InetAddress hostAddress) { 1224 try { 1225 return mService.requestRouteToHostAddress(networkType, hostAddress.getAddress()); 1226 } catch (RemoteException e) { 1227 return false; 1228 } 1229 } 1230 1231 /** 1232 * Returns the value of the setting for background data usage. If false, 1233 * applications should not use the network if the application is not in the 1234 * foreground. Developers should respect this setting, and check the value 1235 * of this before performing any background data operations. 1236 * <p> 1237 * All applications that have background services that use the network 1238 * should listen to {@link #ACTION_BACKGROUND_DATA_SETTING_CHANGED}. 1239 * <p> 1240 * @deprecated As of {@link VERSION_CODES#ICE_CREAM_SANDWICH}, availability of 1241 * background data depends on several combined factors, and this method will 1242 * always return {@code true}. Instead, when background data is unavailable, 1243 * {@link #getActiveNetworkInfo()} will now appear disconnected. 1244 * 1245 * @return Whether background data usage is allowed. 1246 */ 1247 @Deprecated 1248 public boolean getBackgroundDataSetting() { 1249 // assume that background data is allowed; final authority is 1250 // NetworkInfo which may be blocked. 1251 return true; 1252 } 1253 1254 /** 1255 * Sets the value of the setting for background data usage. 1256 * 1257 * @param allowBackgroundData Whether an application should use data while 1258 * it is in the background. 1259 * 1260 * @attr ref android.Manifest.permission#CHANGE_BACKGROUND_DATA_SETTING 1261 * @see #getBackgroundDataSetting() 1262 * @hide 1263 */ 1264 @Deprecated 1265 public void setBackgroundDataSetting(boolean allowBackgroundData) { 1266 // ignored 1267 } 1268 1269 /** 1270 * Return quota status for the current active network, or {@code null} if no 1271 * network is active. Quota status can change rapidly, so these values 1272 * shouldn't be cached. 1273 * 1274 * <p>This method requires the call to hold the permission 1275 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1276 * 1277 * @hide 1278 */ 1279 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1280 try { 1281 return mService.getActiveNetworkQuotaInfo(); 1282 } catch (RemoteException e) { 1283 return null; 1284 } 1285 } 1286 1287 /** 1288 * @hide 1289 * @deprecated Talk to TelephonyManager directly 1290 */ 1291 public boolean getMobileDataEnabled() { 1292 IBinder b = ServiceManager.getService(Context.TELEPHONY_SERVICE); 1293 if (b != null) { 1294 try { 1295 ITelephony it = ITelephony.Stub.asInterface(b); 1296 return it.getDataEnabled(); 1297 } catch (RemoteException e) { } 1298 } 1299 return false; 1300 } 1301 1302 /** 1303 * Callback for use with {@link ConnectivityManager#addDefaultNetworkActiveListener} 1304 * to find out when the system default network has gone in to a high power state. 1305 */ 1306 public interface OnNetworkActiveListener { 1307 /** 1308 * Called on the main thread of the process to report that the current data network 1309 * has become active, and it is now a good time to perform any pending network 1310 * operations. Note that this listener only tells you when the network becomes 1311 * active; if at any other time you want to know whether it is active (and thus okay 1312 * to initiate network traffic), you can retrieve its instantaneous state with 1313 * {@link ConnectivityManager#isDefaultNetworkActive}. 1314 */ 1315 public void onNetworkActive(); 1316 } 1317 1318 private INetworkManagementService getNetworkManagementService() { 1319 synchronized (this) { 1320 if (mNMService != null) { 1321 return mNMService; 1322 } 1323 IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE); 1324 mNMService = INetworkManagementService.Stub.asInterface(b); 1325 return mNMService; 1326 } 1327 } 1328 1329 private final ArrayMap<OnNetworkActiveListener, INetworkActivityListener> 1330 mNetworkActivityListeners 1331 = new ArrayMap<OnNetworkActiveListener, INetworkActivityListener>(); 1332 1333 /** 1334 * Start listening to reports when the system's default data network is active, meaning it is 1335 * a good time to perform network traffic. Use {@link #isDefaultNetworkActive()} 1336 * to determine the current state of the system's default network after registering the 1337 * listener. 1338 * <p> 1339 * If the process default network has been set with 1340 * {@link ConnectivityManager#setProcessDefaultNetwork} this function will not 1341 * reflect the process's default, but the system default. 1342 * 1343 * @param l The listener to be told when the network is active. 1344 */ 1345 public void addDefaultNetworkActiveListener(final OnNetworkActiveListener l) { 1346 INetworkActivityListener rl = new INetworkActivityListener.Stub() { 1347 @Override 1348 public void onNetworkActive() throws RemoteException { 1349 l.onNetworkActive(); 1350 } 1351 }; 1352 1353 try { 1354 getNetworkManagementService().registerNetworkActivityListener(rl); 1355 mNetworkActivityListeners.put(l, rl); 1356 } catch (RemoteException e) { 1357 } 1358 } 1359 1360 /** 1361 * Remove network active listener previously registered with 1362 * {@link #addDefaultNetworkActiveListener}. 1363 * 1364 * @param l Previously registered listener. 1365 */ 1366 public void removeDefaultNetworkActiveListener(OnNetworkActiveListener l) { 1367 INetworkActivityListener rl = mNetworkActivityListeners.get(l); 1368 if (rl == null) { 1369 throw new IllegalArgumentException("Listener not registered: " + l); 1370 } 1371 try { 1372 getNetworkManagementService().unregisterNetworkActivityListener(rl); 1373 } catch (RemoteException e) { 1374 } 1375 } 1376 1377 /** 1378 * Return whether the data network is currently active. An active network means that 1379 * it is currently in a high power state for performing data transmission. On some 1380 * types of networks, it may be expensive to move and stay in such a state, so it is 1381 * more power efficient to batch network traffic together when the radio is already in 1382 * this state. This method tells you whether right now is currently a good time to 1383 * initiate network traffic, as the network is already active. 1384 */ 1385 public boolean isDefaultNetworkActive() { 1386 try { 1387 return getNetworkManagementService().isNetworkActive(); 1388 } catch (RemoteException e) { 1389 } 1390 return false; 1391 } 1392 1393 /** 1394 * {@hide} 1395 */ 1396 public ConnectivityManager(IConnectivityManager service) { 1397 mService = checkNotNull(service, "missing IConnectivityManager"); 1398 } 1399 1400 /** {@hide} */ 1401 public static ConnectivityManager from(Context context) { 1402 return (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); 1403 } 1404 1405 /** {@hide */ 1406 public static final void enforceTetherChangePermission(Context context) { 1407 if (context.getResources().getStringArray( 1408 com.android.internal.R.array.config_mobile_hotspot_provision_app).length == 2) { 1409 // Have a provisioning app - must only let system apps (which check this app) 1410 // turn on tethering 1411 context.enforceCallingOrSelfPermission( 1412 android.Manifest.permission.CONNECTIVITY_INTERNAL, "ConnectivityService"); 1413 } else { 1414 context.enforceCallingOrSelfPermission( 1415 android.Manifest.permission.CHANGE_NETWORK_STATE, "ConnectivityService"); 1416 } 1417 } 1418 1419 /** 1420 * Get the set of tetherable, available interfaces. This list is limited by 1421 * device configuration and current interface existence. 1422 * 1423 * @return an array of 0 or more Strings of tetherable interface names. 1424 * 1425 * <p>This method requires the call to hold the permission 1426 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1427 * {@hide} 1428 */ 1429 public String[] getTetherableIfaces() { 1430 try { 1431 return mService.getTetherableIfaces(); 1432 } catch (RemoteException e) { 1433 return new String[0]; 1434 } 1435 } 1436 1437 /** 1438 * Get the set of tethered interfaces. 1439 * 1440 * @return an array of 0 or more String of currently tethered interface names. 1441 * 1442 * <p>This method requires the call to hold the permission 1443 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1444 * {@hide} 1445 */ 1446 public String[] getTetheredIfaces() { 1447 try { 1448 return mService.getTetheredIfaces(); 1449 } catch (RemoteException e) { 1450 return new String[0]; 1451 } 1452 } 1453 1454 /** 1455 * Get the set of interface names which attempted to tether but 1456 * failed. Re-attempting to tether may cause them to reset to the Tethered 1457 * state. Alternatively, causing the interface to be destroyed and recreated 1458 * may cause them to reset to the available state. 1459 * {@link ConnectivityManager#getLastTetherError} can be used to get more 1460 * information on the cause of the errors. 1461 * 1462 * @return an array of 0 or more String indicating the interface names 1463 * which failed to tether. 1464 * 1465 * <p>This method requires the call to hold the permission 1466 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1467 * {@hide} 1468 */ 1469 public String[] getTetheringErroredIfaces() { 1470 try { 1471 return mService.getTetheringErroredIfaces(); 1472 } catch (RemoteException e) { 1473 return new String[0]; 1474 } 1475 } 1476 1477 /** 1478 * Get the set of tethered dhcp ranges. 1479 * 1480 * @return an array of 0 or more {@code String} of tethered dhcp ranges. 1481 * {@hide} 1482 */ 1483 public String[] getTetheredDhcpRanges() { 1484 try { 1485 return mService.getTetheredDhcpRanges(); 1486 } catch (RemoteException e) { 1487 return new String[0]; 1488 } 1489 } 1490 1491 /** 1492 * Attempt to tether the named interface. This will setup a dhcp server 1493 * on the interface, forward and NAT IP packets and forward DNS requests 1494 * to the best active upstream network interface. Note that if no upstream 1495 * IP network interface is available, dhcp will still run and traffic will be 1496 * allowed between the tethered devices and this device, though upstream net 1497 * access will of course fail until an upstream network interface becomes 1498 * active. 1499 * 1500 * @param iface the interface name to tether. 1501 * @return error a {@code TETHER_ERROR} value indicating success or failure type 1502 * 1503 * <p>This method requires the call to hold the permission 1504 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1505 * {@hide} 1506 */ 1507 public int tether(String iface) { 1508 try { 1509 return mService.tether(iface); 1510 } catch (RemoteException e) { 1511 return TETHER_ERROR_SERVICE_UNAVAIL; 1512 } 1513 } 1514 1515 /** 1516 * Stop tethering the named interface. 1517 * 1518 * @param iface the interface name to untether. 1519 * @return error a {@code TETHER_ERROR} value indicating success or failure type 1520 * 1521 * <p>This method requires the call to hold the permission 1522 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1523 * {@hide} 1524 */ 1525 public int untether(String iface) { 1526 try { 1527 return mService.untether(iface); 1528 } catch (RemoteException e) { 1529 return TETHER_ERROR_SERVICE_UNAVAIL; 1530 } 1531 } 1532 1533 /** 1534 * Check if the device allows for tethering. It may be disabled via 1535 * {@code ro.tether.denied} system property, Settings.TETHER_SUPPORTED or 1536 * due to device configuration. 1537 * 1538 * @return a boolean - {@code true} indicating Tethering is supported. 1539 * 1540 * <p>This method requires the call to hold the permission 1541 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1542 * {@hide} 1543 */ 1544 public boolean isTetheringSupported() { 1545 try { 1546 return mService.isTetheringSupported(); 1547 } catch (RemoteException e) { 1548 return false; 1549 } 1550 } 1551 1552 /** 1553 * Get the list of regular expressions that define any tetherable 1554 * USB network interfaces. If USB tethering is not supported by the 1555 * device, this list should be empty. 1556 * 1557 * @return an array of 0 or more regular expression Strings defining 1558 * what interfaces are considered tetherable usb interfaces. 1559 * 1560 * <p>This method requires the call to hold the permission 1561 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1562 * {@hide} 1563 */ 1564 public String[] getTetherableUsbRegexs() { 1565 try { 1566 return mService.getTetherableUsbRegexs(); 1567 } catch (RemoteException e) { 1568 return new String[0]; 1569 } 1570 } 1571 1572 /** 1573 * Get the list of regular expressions that define any tetherable 1574 * Wifi network interfaces. If Wifi tethering is not supported by the 1575 * device, this list should be empty. 1576 * 1577 * @return an array of 0 or more regular expression Strings defining 1578 * what interfaces are considered tetherable wifi interfaces. 1579 * 1580 * <p>This method requires the call to hold the permission 1581 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1582 * {@hide} 1583 */ 1584 public String[] getTetherableWifiRegexs() { 1585 try { 1586 return mService.getTetherableWifiRegexs(); 1587 } catch (RemoteException e) { 1588 return new String[0]; 1589 } 1590 } 1591 1592 /** 1593 * Get the list of regular expressions that define any tetherable 1594 * Bluetooth network interfaces. If Bluetooth tethering is not supported by the 1595 * device, this list should be empty. 1596 * 1597 * @return an array of 0 or more regular expression Strings defining 1598 * what interfaces are considered tetherable bluetooth interfaces. 1599 * 1600 * <p>This method requires the call to hold the permission 1601 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1602 * {@hide} 1603 */ 1604 public String[] getTetherableBluetoothRegexs() { 1605 try { 1606 return mService.getTetherableBluetoothRegexs(); 1607 } catch (RemoteException e) { 1608 return new String[0]; 1609 } 1610 } 1611 1612 /** 1613 * Attempt to both alter the mode of USB and Tethering of USB. A 1614 * utility method to deal with some of the complexity of USB - will 1615 * attempt to switch to Rndis and subsequently tether the resulting 1616 * interface on {@code true} or turn off tethering and switch off 1617 * Rndis on {@code false}. 1618 * 1619 * @param enable a boolean - {@code true} to enable tethering 1620 * @return error a {@code TETHER_ERROR} value indicating success or failure type 1621 * 1622 * <p>This method requires the call to hold the permission 1623 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1624 * {@hide} 1625 */ 1626 public int setUsbTethering(boolean enable) { 1627 try { 1628 return mService.setUsbTethering(enable); 1629 } catch (RemoteException e) { 1630 return TETHER_ERROR_SERVICE_UNAVAIL; 1631 } 1632 } 1633 1634 /** {@hide} */ 1635 public static final int TETHER_ERROR_NO_ERROR = 0; 1636 /** {@hide} */ 1637 public static final int TETHER_ERROR_UNKNOWN_IFACE = 1; 1638 /** {@hide} */ 1639 public static final int TETHER_ERROR_SERVICE_UNAVAIL = 2; 1640 /** {@hide} */ 1641 public static final int TETHER_ERROR_UNSUPPORTED = 3; 1642 /** {@hide} */ 1643 public static final int TETHER_ERROR_UNAVAIL_IFACE = 4; 1644 /** {@hide} */ 1645 public static final int TETHER_ERROR_MASTER_ERROR = 5; 1646 /** {@hide} */ 1647 public static final int TETHER_ERROR_TETHER_IFACE_ERROR = 6; 1648 /** {@hide} */ 1649 public static final int TETHER_ERROR_UNTETHER_IFACE_ERROR = 7; 1650 /** {@hide} */ 1651 public static final int TETHER_ERROR_ENABLE_NAT_ERROR = 8; 1652 /** {@hide} */ 1653 public static final int TETHER_ERROR_DISABLE_NAT_ERROR = 9; 1654 /** {@hide} */ 1655 public static final int TETHER_ERROR_IFACE_CFG_ERROR = 10; 1656 1657 /** 1658 * Get a more detailed error code after a Tethering or Untethering 1659 * request asynchronously failed. 1660 * 1661 * @param iface The name of the interface of interest 1662 * @return error The error code of the last error tethering or untethering the named 1663 * interface 1664 * 1665 * <p>This method requires the call to hold the permission 1666 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1667 * {@hide} 1668 */ 1669 public int getLastTetherError(String iface) { 1670 try { 1671 return mService.getLastTetherError(iface); 1672 } catch (RemoteException e) { 1673 return TETHER_ERROR_SERVICE_UNAVAIL; 1674 } 1675 } 1676 1677 /** 1678 * Report network connectivity status. This is currently used only 1679 * to alter status bar UI. 1680 * 1681 * @param networkType The type of network you want to report on 1682 * @param percentage The quality of the connection 0 is bad, 100 is good 1683 * 1684 * <p>This method requires the call to hold the permission 1685 * {@link android.Manifest.permission#STATUS_BAR}. 1686 * {@hide} 1687 */ 1688 public void reportInetCondition(int networkType, int percentage) { 1689 try { 1690 mService.reportInetCondition(networkType, percentage); 1691 } catch (RemoteException e) { 1692 } 1693 } 1694 1695 /** 1696 * Report a problem network to the framework. This provides a hint to the system 1697 * that there might be connectivity problems on this network and may cause 1698 * the framework to re-evaluate network connectivity and/or switch to another 1699 * network. 1700 * 1701 * @param network The {@link Network} the application was attempting to use 1702 * or {@code null} to indicate the current default network. 1703 */ 1704 public void reportBadNetwork(Network network) { 1705 try { 1706 mService.reportBadNetwork(network); 1707 } catch (RemoteException e) { 1708 } 1709 } 1710 1711 /** 1712 * Set a network-independent global http proxy. This is not normally what you want 1713 * for typical HTTP proxies - they are general network dependent. However if you're 1714 * doing something unusual like general internal filtering this may be useful. On 1715 * a private network where the proxy is not accessible, you may break HTTP using this. 1716 * 1717 * @param p The a {@link ProxyInfo} object defining the new global 1718 * HTTP proxy. A {@code null} value will clear the global HTTP proxy. 1719 * 1720 * <p>This method requires the call to hold the permission 1721 * android.Manifest.permission#CONNECTIVITY_INTERNAL. 1722 * @hide 1723 */ 1724 public void setGlobalProxy(ProxyInfo p) { 1725 try { 1726 mService.setGlobalProxy(p); 1727 } catch (RemoteException e) { 1728 } 1729 } 1730 1731 /** 1732 * Retrieve any network-independent global HTTP proxy. 1733 * 1734 * @return {@link ProxyInfo} for the current global HTTP proxy or {@code null} 1735 * if no global HTTP proxy is set. 1736 * 1737 * <p>This method requires the call to hold the permission 1738 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1739 * @hide 1740 */ 1741 public ProxyInfo getGlobalProxy() { 1742 try { 1743 return mService.getGlobalProxy(); 1744 } catch (RemoteException e) { 1745 return null; 1746 } 1747 } 1748 1749 /** 1750 * Get the HTTP proxy settings for the current default network. Note that 1751 * if a global proxy is set, it will override any per-network setting. 1752 * 1753 * @return the {@link ProxyInfo} for the current HTTP proxy, or {@code null} if no 1754 * HTTP proxy is active. 1755 * 1756 * <p>This method requires the call to hold the permission 1757 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1758 * {@hide} 1759 * @deprecated Deprecated in favor of {@link #getLinkProperties} 1760 */ 1761 public ProxyInfo getProxy() { 1762 try { 1763 return mService.getProxy(); 1764 } catch (RemoteException e) { 1765 return null; 1766 } 1767 } 1768 1769 /** 1770 * Sets a secondary requirement bit for the given networkType. 1771 * This requirement bit is generally under the control of the carrier 1772 * or its agents and is not directly controlled by the user. 1773 * 1774 * @param networkType The network who's dependence has changed 1775 * @param met Boolean - true if network use is OK, false if not 1776 * 1777 * <p>This method requires the call to hold the permission 1778 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL}. 1779 * {@hide} 1780 */ 1781 public void setDataDependency(int networkType, boolean met) { 1782 try { 1783 mService.setDataDependency(networkType, met); 1784 } catch (RemoteException e) { 1785 } 1786 } 1787 1788 /** 1789 * Returns true if the hardware supports the given network type 1790 * else it returns false. This doesn't indicate we have coverage 1791 * or are authorized onto a network, just whether or not the 1792 * hardware supports it. For example a GSM phone without a SIM 1793 * should still return {@code true} for mobile data, but a wifi only 1794 * tablet would return {@code false}. 1795 * 1796 * @param networkType The network type we'd like to check 1797 * @return {@code true} if supported, else {@code false} 1798 * 1799 * <p>This method requires the call to hold the permission 1800 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1801 * @hide 1802 */ 1803 public boolean isNetworkSupported(int networkType) { 1804 try { 1805 return mService.isNetworkSupported(networkType); 1806 } catch (RemoteException e) {} 1807 return false; 1808 } 1809 1810 /** 1811 * Returns if the currently active data network is metered. A network is 1812 * classified as metered when the user is sensitive to heavy data usage on 1813 * that connection due to monetary costs, data limitations or 1814 * battery/performance issues. You should check this before doing large 1815 * data transfers, and warn the user or delay the operation until another 1816 * network is available. 1817 * 1818 * @return {@code true} if large transfers should be avoided, otherwise 1819 * {@code false}. 1820 * 1821 * <p>This method requires the call to hold the permission 1822 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1823 */ 1824 public boolean isActiveNetworkMetered() { 1825 try { 1826 return mService.isActiveNetworkMetered(); 1827 } catch (RemoteException e) { 1828 return false; 1829 } 1830 } 1831 1832 /** 1833 * If the LockdownVpn mechanism is enabled, updates the vpn 1834 * with a reload of its profile. 1835 * 1836 * @return a boolean with {@code} indicating success 1837 * 1838 * <p>This method can only be called by the system UID 1839 * {@hide} 1840 */ 1841 public boolean updateLockdownVpn() { 1842 try { 1843 return mService.updateLockdownVpn(); 1844 } catch (RemoteException e) { 1845 return false; 1846 } 1847 } 1848 1849 /** 1850 * Signal that the captive portal check on the indicated network 1851 * is complete and whether its a captive portal or not. 1852 * 1853 * @param info the {@link NetworkInfo} object for the networkType 1854 * in question. 1855 * @param isCaptivePortal true/false. 1856 * 1857 * <p>This method requires the call to hold the permission 1858 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL}. 1859 * {@hide} 1860 */ 1861 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 1862 try { 1863 mService.captivePortalCheckCompleted(info, isCaptivePortal); 1864 } catch (RemoteException e) { 1865 } 1866 } 1867 1868 /** 1869 * Supply the backend messenger for a network tracker 1870 * 1871 * @param networkType NetworkType to set 1872 * @param messenger {@link Messenger} 1873 * {@hide} 1874 */ 1875 public void supplyMessenger(int networkType, Messenger messenger) { 1876 try { 1877 mService.supplyMessenger(networkType, messenger); 1878 } catch (RemoteException e) { 1879 } 1880 } 1881 1882 /** 1883 * Check mobile provisioning. 1884 * 1885 * @param suggestedTimeOutMs, timeout in milliseconds 1886 * 1887 * @return time out that will be used, maybe less that suggestedTimeOutMs 1888 * -1 if an error. 1889 * 1890 * {@hide} 1891 */ 1892 public int checkMobileProvisioning(int suggestedTimeOutMs) { 1893 int timeOutMs = -1; 1894 try { 1895 timeOutMs = mService.checkMobileProvisioning(suggestedTimeOutMs); 1896 } catch (RemoteException e) { 1897 } 1898 return timeOutMs; 1899 } 1900 1901 /** 1902 * Get the mobile provisioning url. 1903 * {@hide} 1904 */ 1905 public String getMobileProvisioningUrl() { 1906 try { 1907 return mService.getMobileProvisioningUrl(); 1908 } catch (RemoteException e) { 1909 } 1910 return null; 1911 } 1912 1913 /** 1914 * Get the mobile redirected provisioning url. 1915 * {@hide} 1916 */ 1917 public String getMobileRedirectedProvisioningUrl() { 1918 try { 1919 return mService.getMobileRedirectedProvisioningUrl(); 1920 } catch (RemoteException e) { 1921 } 1922 return null; 1923 } 1924 1925 /** 1926 * get the information about a specific network link 1927 * @hide 1928 */ 1929 public LinkQualityInfo getLinkQualityInfo(int networkType) { 1930 try { 1931 LinkQualityInfo li = mService.getLinkQualityInfo(networkType); 1932 return li; 1933 } catch (RemoteException e) { 1934 return null; 1935 } 1936 } 1937 1938 /** 1939 * get the information of currently active network link 1940 * @hide 1941 */ 1942 public LinkQualityInfo getActiveLinkQualityInfo() { 1943 try { 1944 LinkQualityInfo li = mService.getActiveLinkQualityInfo(); 1945 return li; 1946 } catch (RemoteException e) { 1947 return null; 1948 } 1949 } 1950 1951 /** 1952 * get the information of all network links 1953 * @hide 1954 */ 1955 public LinkQualityInfo[] getAllLinkQualityInfo() { 1956 try { 1957 LinkQualityInfo[] li = mService.getAllLinkQualityInfo(); 1958 return li; 1959 } catch (RemoteException e) { 1960 return null; 1961 } 1962 } 1963 1964 /** 1965 * Set sign in error notification to visible or in visible 1966 * 1967 * @param visible 1968 * @param networkType 1969 * 1970 * {@hide} 1971 */ 1972 public void setProvisioningNotificationVisible(boolean visible, int networkType, 1973 String action) { 1974 try { 1975 mService.setProvisioningNotificationVisible(visible, networkType, action); 1976 } catch (RemoteException e) { 1977 } 1978 } 1979 1980 /** 1981 * Set the value for enabling/disabling airplane mode 1982 * 1983 * @param enable whether to enable airplane mode or not 1984 * 1985 * <p>This method requires the call to hold the permission 1986 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL}. 1987 * @hide 1988 */ 1989 public void setAirplaneMode(boolean enable) { 1990 try { 1991 mService.setAirplaneMode(enable); 1992 } catch (RemoteException e) { 1993 } 1994 } 1995 1996 /** {@hide} */ 1997 public void registerNetworkFactory(Messenger messenger, String name) { 1998 try { 1999 mService.registerNetworkFactory(messenger, name); 2000 } catch (RemoteException e) { } 2001 } 2002 2003 /** {@hide} */ 2004 public void unregisterNetworkFactory(Messenger messenger) { 2005 try { 2006 mService.unregisterNetworkFactory(messenger); 2007 } catch (RemoteException e) { } 2008 } 2009 2010 /** {@hide} */ 2011 public void registerNetworkAgent(Messenger messenger, NetworkInfo ni, LinkProperties lp, 2012 NetworkCapabilities nc, int score, NetworkMisc misc) { 2013 try { 2014 mService.registerNetworkAgent(messenger, ni, lp, nc, score, misc); 2015 } catch (RemoteException e) { } 2016 } 2017 2018 /** 2019 * Base class for NetworkRequest callbacks. Used for notifications about network 2020 * changes. Should be extended by applications wanting notifications. 2021 */ 2022 public static class NetworkCallback { 2023 /** @hide */ 2024 public static final int PRECHECK = 1; 2025 /** @hide */ 2026 public static final int AVAILABLE = 2; 2027 /** @hide */ 2028 public static final int LOSING = 3; 2029 /** @hide */ 2030 public static final int LOST = 4; 2031 /** @hide */ 2032 public static final int UNAVAIL = 5; 2033 /** @hide */ 2034 public static final int CAP_CHANGED = 6; 2035 /** @hide */ 2036 public static final int PROP_CHANGED = 7; 2037 /** @hide */ 2038 public static final int CANCELED = 8; 2039 2040 /** 2041 * @hide 2042 * Called whenever the framework connects to a network that it may use to 2043 * satisfy this request 2044 */ 2045 public void onPreCheck(Network network) {} 2046 2047 /** 2048 * Called when the framework connects and has declared new network ready for use. 2049 * This callback may be called more than once if the {@link Network} that is 2050 * satisfying the request changes. 2051 * 2052 * @param network The {@link Network} of the satisfying network. 2053 */ 2054 public void onAvailable(Network network) {} 2055 2056 /** 2057 * Called when the network is about to be disconnected. Often paired with an 2058 * {@link NetworkCallback#onAvailable} call with the new replacement network 2059 * for graceful handover. This may not be called if we have a hard loss 2060 * (loss without warning). This may be followed by either a 2061 * {@link NetworkCallback#onLost} call or a 2062 * {@link NetworkCallback#onAvailable} call for this network depending 2063 * on whether we lose or regain it. 2064 * 2065 * @param network The {@link Network} that is about to be disconnected. 2066 * @param maxMsToLive The time in ms the framework will attempt to keep the 2067 * network connected. Note that the network may suffer a 2068 * hard loss at any time. 2069 */ 2070 public void onLosing(Network network, int maxMsToLive) {} 2071 2072 /** 2073 * Called when the framework has a hard loss of the network or when the 2074 * graceful failure ends. 2075 * 2076 * @param network The {@link Network} lost. 2077 */ 2078 public void onLost(Network network) {} 2079 2080 /** 2081 * Called if no network is found in the given timeout time. If no timeout is given, 2082 * this will not be called. 2083 * @hide 2084 */ 2085 public void onUnavailable() {} 2086 2087 /** 2088 * Called when the network the framework connected to for this request 2089 * changes capabilities but still satisfies the stated need. 2090 * 2091 * @param network The {@link Network} whose capabilities have changed. 2092 * @param networkCapabilities The new {@link NetworkCapabilities} for this network. 2093 */ 2094 public void onCapabilitiesChanged(Network network, 2095 NetworkCapabilities networkCapabilities) {} 2096 2097 /** 2098 * Called when the network the framework connected to for this request 2099 * changes {@link LinkProperties}. 2100 * 2101 * @param network The {@link Network} whose link properties have changed. 2102 * @param linkProperties The new {@link LinkProperties} for this network. 2103 */ 2104 public void onLinkPropertiesChanged(Network network, LinkProperties linkProperties) {} 2105 2106 private NetworkRequest networkRequest; 2107 } 2108 2109 private static final int BASE = Protocol.BASE_CONNECTIVITY_MANAGER; 2110 /** @hide obj = pair(NetworkRequest, Network) */ 2111 public static final int CALLBACK_PRECHECK = BASE + 1; 2112 /** @hide obj = pair(NetworkRequest, Network) */ 2113 public static final int CALLBACK_AVAILABLE = BASE + 2; 2114 /** @hide obj = pair(NetworkRequest, Network), arg1 = ttl */ 2115 public static final int CALLBACK_LOSING = BASE + 3; 2116 /** @hide obj = pair(NetworkRequest, Network) */ 2117 public static final int CALLBACK_LOST = BASE + 4; 2118 /** @hide obj = NetworkRequest */ 2119 public static final int CALLBACK_UNAVAIL = BASE + 5; 2120 /** @hide obj = pair(NetworkRequest, Network) */ 2121 public static final int CALLBACK_CAP_CHANGED = BASE + 6; 2122 /** @hide obj = pair(NetworkRequest, Network) */ 2123 public static final int CALLBACK_IP_CHANGED = BASE + 7; 2124 /** @hide obj = NetworkRequest */ 2125 public static final int CALLBACK_RELEASED = BASE + 8; 2126 /** @hide */ 2127 public static final int CALLBACK_EXIT = BASE + 9; 2128 /** @hide obj = NetworkCapabilities, arg1 = seq number */ 2129 private static final int EXPIRE_LEGACY_REQUEST = BASE + 10; 2130 2131 private class CallbackHandler extends Handler { 2132 private final HashMap<NetworkRequest, NetworkCallback>mCallbackMap; 2133 private final AtomicInteger mRefCount; 2134 private static final String TAG = "ConnectivityManager.CallbackHandler"; 2135 private final ConnectivityManager mCm; 2136 2137 CallbackHandler(Looper looper, HashMap<NetworkRequest, NetworkCallback>callbackMap, 2138 AtomicInteger refCount, ConnectivityManager cm) { 2139 super(looper); 2140 mCallbackMap = callbackMap; 2141 mRefCount = refCount; 2142 mCm = cm; 2143 } 2144 2145 @Override 2146 public void handleMessage(Message message) { 2147 Log.d(TAG, "CM callback handler got msg " + message.what); 2148 switch (message.what) { 2149 case CALLBACK_PRECHECK: { 2150 NetworkRequest request = (NetworkRequest)getObject(message, 2151 NetworkRequest.class); 2152 NetworkCallback callbacks = getCallbacks(request); 2153 if (callbacks != null) { 2154 callbacks.onPreCheck((Network)getObject(message, Network.class)); 2155 } else { 2156 Log.e(TAG, "callback not found for PRECHECK message"); 2157 } 2158 break; 2159 } 2160 case CALLBACK_AVAILABLE: { 2161 NetworkRequest request = (NetworkRequest)getObject(message, 2162 NetworkRequest.class); 2163 NetworkCallback callbacks = getCallbacks(request); 2164 if (callbacks != null) { 2165 callbacks.onAvailable((Network)getObject(message, Network.class)); 2166 } else { 2167 Log.e(TAG, "callback not found for AVAILABLE message"); 2168 } 2169 break; 2170 } 2171 case CALLBACK_LOSING: { 2172 NetworkRequest request = (NetworkRequest)getObject(message, 2173 NetworkRequest.class); 2174 NetworkCallback callbacks = getCallbacks(request); 2175 if (callbacks != null) { 2176 callbacks.onLosing((Network)getObject(message, Network.class), 2177 message.arg1); 2178 } else { 2179 Log.e(TAG, "callback not found for LOSING message"); 2180 } 2181 break; 2182 } 2183 case CALLBACK_LOST: { 2184 NetworkRequest request = (NetworkRequest)getObject(message, 2185 NetworkRequest.class); 2186 2187 NetworkCallback callbacks = getCallbacks(request); 2188 if (callbacks != null) { 2189 callbacks.onLost((Network)getObject(message, Network.class)); 2190 } else { 2191 Log.e(TAG, "callback not found for LOST message"); 2192 } 2193 break; 2194 } 2195 case CALLBACK_UNAVAIL: { 2196 NetworkRequest request = (NetworkRequest)getObject(message, 2197 NetworkRequest.class); 2198 NetworkCallback callbacks = null; 2199 synchronized(mCallbackMap) { 2200 callbacks = mCallbackMap.get(request); 2201 } 2202 if (callbacks != null) { 2203 callbacks.onUnavailable(); 2204 } else { 2205 Log.e(TAG, "callback not found for UNAVAIL message"); 2206 } 2207 break; 2208 } 2209 case CALLBACK_CAP_CHANGED: { 2210 NetworkRequest request = (NetworkRequest)getObject(message, 2211 NetworkRequest.class); 2212 NetworkCallback callbacks = getCallbacks(request); 2213 if (callbacks != null) { 2214 Network network = (Network)getObject(message, Network.class); 2215 NetworkCapabilities cap = (NetworkCapabilities)getObject(message, 2216 NetworkCapabilities.class); 2217 2218 callbacks.onCapabilitiesChanged(network, cap); 2219 } else { 2220 Log.e(TAG, "callback not found for CAP_CHANGED message"); 2221 } 2222 break; 2223 } 2224 case CALLBACK_IP_CHANGED: { 2225 NetworkRequest request = (NetworkRequest)getObject(message, 2226 NetworkRequest.class); 2227 NetworkCallback callbacks = getCallbacks(request); 2228 if (callbacks != null) { 2229 Network network = (Network)getObject(message, Network.class); 2230 LinkProperties lp = (LinkProperties)getObject(message, 2231 LinkProperties.class); 2232 2233 callbacks.onLinkPropertiesChanged(network, lp); 2234 } else { 2235 Log.e(TAG, "callback not found for IP_CHANGED message"); 2236 } 2237 break; 2238 } 2239 case CALLBACK_RELEASED: { 2240 NetworkRequest req = (NetworkRequest)getObject(message, NetworkRequest.class); 2241 NetworkCallback callbacks = null; 2242 synchronized(mCallbackMap) { 2243 callbacks = mCallbackMap.remove(req); 2244 } 2245 if (callbacks != null) { 2246 synchronized(mRefCount) { 2247 if (mRefCount.decrementAndGet() == 0) { 2248 getLooper().quit(); 2249 } 2250 } 2251 } else { 2252 Log.e(TAG, "callback not found for CANCELED message"); 2253 } 2254 break; 2255 } 2256 case CALLBACK_EXIT: { 2257 Log.d(TAG, "Listener quiting"); 2258 getLooper().quit(); 2259 break; 2260 } 2261 case EXPIRE_LEGACY_REQUEST: { 2262 expireRequest((NetworkCapabilities)message.obj, message.arg1); 2263 break; 2264 } 2265 } 2266 } 2267 2268 private Object getObject(Message msg, Class c) { 2269 return msg.getData().getParcelable(c.getSimpleName()); 2270 } 2271 private NetworkCallback getCallbacks(NetworkRequest req) { 2272 synchronized(mCallbackMap) { 2273 return mCallbackMap.get(req); 2274 } 2275 } 2276 } 2277 2278 private void incCallbackHandlerRefCount() { 2279 synchronized(sCallbackRefCount) { 2280 if (sCallbackRefCount.incrementAndGet() == 1) { 2281 // TODO - switch this over to a ManagerThread or expire it when done 2282 HandlerThread callbackThread = new HandlerThread("ConnectivityManager"); 2283 callbackThread.start(); 2284 sCallbackHandler = new CallbackHandler(callbackThread.getLooper(), 2285 sNetworkCallback, sCallbackRefCount, this); 2286 } 2287 } 2288 } 2289 2290 private void decCallbackHandlerRefCount() { 2291 synchronized(sCallbackRefCount) { 2292 if (sCallbackRefCount.decrementAndGet() == 0) { 2293 sCallbackHandler.obtainMessage(CALLBACK_EXIT).sendToTarget(); 2294 sCallbackHandler = null; 2295 } 2296 } 2297 } 2298 2299 static final HashMap<NetworkRequest, NetworkCallback> sNetworkCallback = 2300 new HashMap<NetworkRequest, NetworkCallback>(); 2301 static final AtomicInteger sCallbackRefCount = new AtomicInteger(0); 2302 static CallbackHandler sCallbackHandler = null; 2303 2304 private final static int LISTEN = 1; 2305 private final static int REQUEST = 2; 2306 2307 private NetworkRequest sendRequestForNetwork(NetworkCapabilities need, 2308 NetworkCallback networkCallback, int timeoutSec, int action, 2309 int legacyType) { 2310 if (networkCallback == null) { 2311 throw new IllegalArgumentException("null NetworkCallback"); 2312 } 2313 if (need == null) throw new IllegalArgumentException("null NetworkCapabilities"); 2314 try { 2315 incCallbackHandlerRefCount(); 2316 synchronized(sNetworkCallback) { 2317 if (action == LISTEN) { 2318 networkCallback.networkRequest = mService.listenForNetwork(need, 2319 new Messenger(sCallbackHandler), new Binder()); 2320 } else { 2321 networkCallback.networkRequest = mService.requestNetwork(need, 2322 new Messenger(sCallbackHandler), timeoutSec, new Binder(), legacyType); 2323 } 2324 if (networkCallback.networkRequest != null) { 2325 sNetworkCallback.put(networkCallback.networkRequest, networkCallback); 2326 } 2327 } 2328 } catch (RemoteException e) {} 2329 if (networkCallback.networkRequest == null) decCallbackHandlerRefCount(); 2330 return networkCallback.networkRequest; 2331 } 2332 2333 /** 2334 * Request a network to satisfy a set of {@link NetworkCapabilities}. 2335 * 2336 * This {@link NetworkRequest} will live until released via 2337 * {@link #unregisterNetworkCallback} or the calling application exits. 2338 * Status of the request can be followed by listening to the various 2339 * callbacks described in {@link NetworkCallback}. The {@link Network} 2340 * can be used to direct traffic to the network. 2341 * 2342 * @param request {@link NetworkRequest} describing this request. 2343 * @param networkCallback The {@link NetworkCallback} to be utilized for this 2344 * request. Note the callback must not be shared - they 2345 * uniquely specify this request. 2346 */ 2347 public void requestNetwork(NetworkRequest request, NetworkCallback networkCallback) { 2348 sendRequestForNetwork(request.networkCapabilities, networkCallback, 0, 2349 REQUEST, inferLegacyTypeForNetworkCapabilities(request.networkCapabilities)); 2350 } 2351 2352 /** 2353 * Request a network to satisfy a set of {@link NetworkCapabilities}, limited 2354 * by a timeout. 2355 * 2356 * This function behaves identically to the non-timedout version, but if a suitable 2357 * network is not found within the given time (in milliseconds) the 2358 * {@link NetworkCallback#unavailable} callback is called. The request must 2359 * still be released normally by calling {@link releaseNetworkRequest}. 2360 * @param request {@link NetworkRequest} describing this request. 2361 * @param networkCallback The callbacks to be utilized for this request. Note 2362 * the callbacks must not be shared - they uniquely specify 2363 * this request. 2364 * @param timeoutMs The time in milliseconds to attempt looking for a suitable network 2365 * before {@link NetworkCallback#unavailable} is called. 2366 * @hide 2367 */ 2368 public void requestNetwork(NetworkRequest request, NetworkCallback networkCallback, 2369 int timeoutMs) { 2370 sendRequestForNetwork(request.networkCapabilities, networkCallback, timeoutMs, 2371 REQUEST, inferLegacyTypeForNetworkCapabilities(request.networkCapabilities)); 2372 } 2373 2374 /** 2375 * The maximum number of milliseconds the framework will look for a suitable network 2376 * during a timeout-equiped call to {@link requestNetwork}. 2377 * {@hide} 2378 */ 2379 public final static int MAX_NETWORK_REQUEST_TIMEOUT_MS = 100 * 60 * 1000; 2380 2381 /** 2382 * The lookup key for a {@link Network} object included with the intent after 2383 * successfully finding a network for the applications request. Retrieve it with 2384 * {@link android.content.Intent#getParcelableExtra(String)}. 2385 */ 2386 public static final String EXTRA_NETWORK = "android.net.extra.NETWORK"; 2387 2388 /** 2389 * The lookup key for a {@link NetworkRequest} object included with the intent after 2390 * successfully finding a network for the applications request. Retrieve it with 2391 * {@link android.content.Intent#getParcelableExtra(String)}. 2392 */ 2393 public static final String EXTRA_NETWORK_REQUEST = "android.net.extra.NETWORK_REQUEST"; 2394 2395 2396 /** 2397 * Request a network to satisfy a set of {@link NetworkCapabilities}. 2398 * 2399 * This function behaves identically to the version that takes a NetworkCallback, but instead 2400 * of {@link NetworkCallback} a {@link PendingIntent} is used. This means 2401 * the request may outlive the calling application and get called back when a suitable 2402 * network is found. 2403 * <p> 2404 * The operation is an Intent broadcast that goes to a broadcast receiver that 2405 * you registered with {@link Context#registerReceiver} or through the 2406 * <receiver> tag in an AndroidManifest.xml file 2407 * <p> 2408 * The operation Intent is delivered with two extras, a {@link Network} typed 2409 * extra called {@link #EXTRA_NETWORK} and a {@link NetworkRequest} 2410 * typed extra called {@link #EXTRA_NETWORK_REQUEST} containing 2411 * the original requests parameters. It is important to create a new, 2412 * {@link NetworkCallback} based request before completing the processing of the 2413 * Intent to reserve the network or it will be released shortly after the Intent 2414 * is processed. 2415 * <p> 2416 * If there is already an request for this Intent registered (with the equality of 2417 * two Intents defined by {@link Intent#filterEquals}), then it will be removed and 2418 * replaced by this one, effectively releasing the previous {@link NetworkRequest}. 2419 * <p> 2420 * The request may be released normally by calling 2421 * {@link #releaseNetworkRequest(android.app.PendingIntent)}. 2422 * 2423 * @param request {@link NetworkRequest} describing this request. 2424 * @param operation Action to perform when the network is available (corresponds 2425 * to the {@link NetworkCallback#onAvailable} call. Typically 2426 * comes from {@link PendingIntent#getBroadcast}. Cannot be null. 2427 */ 2428 public void requestNetwork(NetworkRequest request, PendingIntent operation) { 2429 checkPendingIntent(operation); 2430 try { 2431 mService.pendingRequestForNetwork(request.networkCapabilities, operation); 2432 } catch (RemoteException e) {} 2433 } 2434 2435 /** 2436 * Removes a request made via {@link #requestNetwork(NetworkRequest, android.app.PendingIntent)} 2437 * <p> 2438 * This method has the same behavior as {@link #unregisterNetworkCallback} with respect to 2439 * releasing network resources and disconnecting. 2440 * 2441 * @param operation A PendingIntent equal (as defined by {@link Intent#filterEquals}) to the 2442 * PendingIntent passed to 2443 * {@link #requestNetwork(NetworkRequest, android.app.PendingIntent)} with the 2444 * corresponding NetworkRequest you'd like to remove. Cannot be null. 2445 */ 2446 public void releaseNetworkRequest(PendingIntent operation) { 2447 checkPendingIntent(operation); 2448 try { 2449 mService.releasePendingNetworkRequest(operation); 2450 } catch (RemoteException e) {} 2451 } 2452 2453 private void checkPendingIntent(PendingIntent intent) { 2454 if (intent == null) { 2455 throw new IllegalArgumentException("PendingIntent cannot be null."); 2456 } 2457 } 2458 2459 /** 2460 * Registers to receive notifications about all networks which satisfy the given 2461 * {@link NetworkRequest}. The callbacks will continue to be called until 2462 * either the application exits or {@link #unregisterNetworkCallback} is called 2463 * 2464 * @param request {@link NetworkRequest} describing this request. 2465 * @param networkCallback The {@link NetworkCallback} that the system will call as suitable 2466 * networks change state. 2467 */ 2468 public void registerNetworkCallback(NetworkRequest request, NetworkCallback networkCallback) { 2469 sendRequestForNetwork(request.networkCapabilities, networkCallback, 0, LISTEN, TYPE_NONE); 2470 } 2471 2472 /** 2473 * Unregisters callbacks about and possibly releases networks originating from 2474 * {@link #requestNetwork} and {@link #registerNetworkCallback} calls. If the 2475 * given {@code NetworkCallback} had previously been used with {@code #requestNetwork}, 2476 * any networks that had been connected to only to satisfy that request will be 2477 * disconnected. 2478 * 2479 * @param networkCallback The {@link NetworkCallback} used when making the request. 2480 */ 2481 public void unregisterNetworkCallback(NetworkCallback networkCallback) { 2482 if (networkCallback == null || networkCallback.networkRequest == null || 2483 networkCallback.networkRequest.requestId == REQUEST_ID_UNSET) { 2484 throw new IllegalArgumentException("Invalid NetworkCallback"); 2485 } 2486 try { 2487 mService.releaseNetworkRequest(networkCallback.networkRequest); 2488 } catch (RemoteException e) {} 2489 } 2490 2491 /** 2492 * Binds the current process to {@code network}. All Sockets created in the future 2493 * (and not explicitly bound via a bound SocketFactory from 2494 * {@link Network#getSocketFactory() Network.getSocketFactory()}) will be bound to 2495 * {@code network}. All host name resolutions will be limited to {@code network} as well. 2496 * Note that if {@code network} ever disconnects, all Sockets created in this way will cease to 2497 * work and all host name resolutions will fail. This is by design so an application doesn't 2498 * accidentally use Sockets it thinks are still bound to a particular {@link Network}. 2499 * To clear binding pass {@code null} for {@code network}. Using individually bound 2500 * Sockets created by Network.getSocketFactory().createSocket() and 2501 * performing network-specific host name resolutions via 2502 * {@link Network#getAllByName Network.getAllByName} is preferred to calling 2503 * {@code setProcessDefaultNetwork}. 2504 * 2505 * @param network The {@link Network} to bind the current process to, or {@code null} to clear 2506 * the current binding. 2507 * @return {@code true} on success, {@code false} if the {@link Network} is no longer valid. 2508 */ 2509 public static boolean setProcessDefaultNetwork(Network network) { 2510 int netId = (network == null) ? NETID_UNSET : network.netId; 2511 if (netId == NetworkUtils.getNetworkBoundToProcess()) { 2512 return true; 2513 } 2514 if (NetworkUtils.bindProcessToNetwork(netId)) { 2515 // Must flush DNS cache as new network may have different DNS resolutions. 2516 InetAddress.clearDnsCache(); 2517 // Must flush socket pool as idle sockets will be bound to previous network and may 2518 // cause subsequent fetches to be performed on old network. 2519 NetworkEventDispatcher.getInstance().onNetworkConfigurationChanged(); 2520 return true; 2521 } else { 2522 return false; 2523 } 2524 } 2525 2526 /** 2527 * Returns the {@link Network} currently bound to this process via 2528 * {@link #setProcessDefaultNetwork}, or {@code null} if no {@link Network} is explicitly bound. 2529 * 2530 * @return {@code Network} to which this process is bound, or {@code null}. 2531 */ 2532 public static Network getProcessDefaultNetwork() { 2533 int netId = NetworkUtils.getNetworkBoundToProcess(); 2534 if (netId == NETID_UNSET) return null; 2535 return new Network(netId); 2536 } 2537 2538 /** 2539 * Binds host resolutions performed by this process to {@code network}. 2540 * {@link #setProcessDefaultNetwork} takes precedence over this setting. 2541 * 2542 * @param network The {@link Network} to bind host resolutions from the current process to, or 2543 * {@code null} to clear the current binding. 2544 * @return {@code true} on success, {@code false} if the {@link Network} is no longer valid. 2545 * @hide 2546 * @deprecated This is strictly for legacy usage to support {@link #startUsingNetworkFeature}. 2547 */ 2548 public static boolean setProcessDefaultNetworkForHostResolution(Network network) { 2549 return NetworkUtils.bindProcessToNetworkForHostResolution( 2550 network == null ? NETID_UNSET : network.netId); 2551 } 2552} 2553