ConnectivityManager.java revision 2ea89e59c35ba49eb0b8a8e6583741539357e71f
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16package android.net; 17 18import static com.android.internal.util.Preconditions.checkNotNull; 19 20import android.annotation.SdkConstant; 21import android.annotation.SdkConstant.SdkConstantType; 22import android.app.PendingIntent; 23import android.content.Context; 24import android.content.Intent; 25import android.net.NetworkUtils; 26import android.os.Binder; 27import android.os.Build.VERSION_CODES; 28import android.os.Handler; 29import android.os.HandlerThread; 30import android.os.IBinder; 31import android.os.INetworkActivityListener; 32import android.os.INetworkManagementService; 33import android.os.Looper; 34import android.os.Message; 35import android.os.Messenger; 36import android.os.RemoteException; 37import android.os.ServiceManager; 38import android.provider.Settings; 39import android.telephony.SubscriptionManager; 40import android.util.ArrayMap; 41import android.util.Log; 42 43import com.android.internal.telephony.ITelephony; 44import com.android.internal.telephony.PhoneConstants; 45import com.android.internal.util.Protocol; 46 47import java.net.InetAddress; 48import java.util.concurrent.atomic.AtomicInteger; 49import java.util.HashMap; 50 51import libcore.net.event.NetworkEventDispatcher; 52 53/** 54 * Class that answers queries about the state of network connectivity. It also 55 * notifies applications when network connectivity changes. Get an instance 56 * of this class by calling 57 * {@link android.content.Context#getSystemService(String) Context.getSystemService(Context.CONNECTIVITY_SERVICE)}. 58 * <p> 59 * The primary responsibilities of this class are to: 60 * <ol> 61 * <li>Monitor network connections (Wi-Fi, GPRS, UMTS, etc.)</li> 62 * <li>Send broadcast intents when network connectivity changes</li> 63 * <li>Attempt to "fail over" to another network when connectivity to a network 64 * is lost</li> 65 * <li>Provide an API that allows applications to query the coarse-grained or fine-grained 66 * state of the available networks</li> 67 * <li>Provide an API that allows applications to request and select networks for their data 68 * traffic</li> 69 * </ol> 70 */ 71public class ConnectivityManager { 72 private static final String TAG = "ConnectivityManager"; 73 74 /** 75 * A change in network connectivity has occurred. A default connection has either 76 * been established or lost. The NetworkInfo for the affected network is 77 * sent as an extra; it should be consulted to see what kind of 78 * connectivity event occurred. 79 * <p/> 80 * If this is a connection that was the result of failing over from a 81 * disconnected network, then the FAILOVER_CONNECTION boolean extra is 82 * set to true. 83 * <p/> 84 * For a loss of connectivity, if the connectivity manager is attempting 85 * to connect (or has already connected) to another network, the 86 * NetworkInfo for the new network is also passed as an extra. This lets 87 * any receivers of the broadcast know that they should not necessarily 88 * tell the user that no data traffic will be possible. Instead, the 89 * receiver should expect another broadcast soon, indicating either that 90 * the failover attempt succeeded (and so there is still overall data 91 * connectivity), or that the failover attempt failed, meaning that all 92 * connectivity has been lost. 93 * <p/> 94 * For a disconnect event, the boolean extra EXTRA_NO_CONNECTIVITY 95 * is set to {@code true} if there are no connected networks at all. 96 */ 97 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 98 public static final String CONNECTIVITY_ACTION = "android.net.conn.CONNECTIVITY_CHANGE"; 99 100 /** 101 * The device has connected to a network that has presented a captive 102 * portal, which is blocking Internet connectivity. The user was presented 103 * with a notification that network sign in is required, 104 * and the user invoked the notification's action indicating they 105 * desire to sign in to the network. Apps handling this action should 106 * facilitate signing in to the network. This action includes a 107 * {@link Network} typed extra called {@link #EXTRA_NETWORK} that represents 108 * the network presenting the captive portal; all communication with the 109 * captive portal must be done using this {@code Network} object. 110 * <p/> 111 * When the app handling this action believes the user has signed in to 112 * the network and the captive portal has been dismissed, the app should call 113 * {@link #reportCaptivePortalDismissed} so the system can reevaluate the network. 114 * If reevaluation finds the network no longer subject to a captive portal, 115 * the network may become the default active data network. 116 * <p/> 117 * When the app handling this action believes the user explicitly wants 118 * to ignore the captive portal and the network, the app should call 119 * {@link #ignoreNetworkWithCaptivePortal}. 120 * <p/> 121 * Note that this action includes a {@code String} extra named 122 * {@link #EXTRA_CAPTIVE_PORTAL_TOKEN} that must 123 * be passed in to {@link #reportCaptivePortalDismissed} and 124 * {@link #ignoreNetworkWithCaptivePortal}. 125 */ 126 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 127 public static final String ACTION_CAPTIVE_PORTAL_SIGN_IN = "android.net.conn.CAPTIVE_PORTAL"; 128 129 /** 130 * The lookup key for a {@link NetworkInfo} object. Retrieve with 131 * {@link android.content.Intent#getParcelableExtra(String)}. 132 * 133 * @deprecated Since {@link NetworkInfo} can vary based on UID, applications 134 * should always obtain network information through 135 * {@link #getActiveNetworkInfo()}. 136 * @see #EXTRA_NETWORK_TYPE 137 */ 138 @Deprecated 139 public static final String EXTRA_NETWORK_INFO = "networkInfo"; 140 141 /** 142 * Network type which triggered a {@link #CONNECTIVITY_ACTION} broadcast. 143 * 144 * @see android.content.Intent#getIntExtra(String, int) 145 */ 146 public static final String EXTRA_NETWORK_TYPE = "networkType"; 147 148 /** 149 * The lookup key for a boolean that indicates whether a connect event 150 * is for a network to which the connectivity manager was failing over 151 * following a disconnect on another network. 152 * Retrieve it with {@link android.content.Intent#getBooleanExtra(String,boolean)}. 153 */ 154 public static final String EXTRA_IS_FAILOVER = "isFailover"; 155 /** 156 * The lookup key for a {@link NetworkInfo} object. This is supplied when 157 * there is another network that it may be possible to connect to. Retrieve with 158 * {@link android.content.Intent#getParcelableExtra(String)}. 159 */ 160 public static final String EXTRA_OTHER_NETWORK_INFO = "otherNetwork"; 161 /** 162 * The lookup key for a boolean that indicates whether there is a 163 * complete lack of connectivity, i.e., no network is available. 164 * Retrieve it with {@link android.content.Intent#getBooleanExtra(String,boolean)}. 165 */ 166 public static final String EXTRA_NO_CONNECTIVITY = "noConnectivity"; 167 /** 168 * The lookup key for a string that indicates why an attempt to connect 169 * to a network failed. The string has no particular structure. It is 170 * intended to be used in notifications presented to users. Retrieve 171 * it with {@link android.content.Intent#getStringExtra(String)}. 172 */ 173 public static final String EXTRA_REASON = "reason"; 174 /** 175 * The lookup key for a string that provides optionally supplied 176 * extra information about the network state. The information 177 * may be passed up from the lower networking layers, and its 178 * meaning may be specific to a particular network type. Retrieve 179 * it with {@link android.content.Intent#getStringExtra(String)}. 180 */ 181 public static final String EXTRA_EXTRA_INFO = "extraInfo"; 182 /** 183 * The lookup key for an int that provides information about 184 * our connection to the internet at large. 0 indicates no connection, 185 * 100 indicates a great connection. Retrieve it with 186 * {@link android.content.Intent#getIntExtra(String, int)}. 187 * {@hide} 188 */ 189 public static final String EXTRA_INET_CONDITION = "inetCondition"; 190 191 /** 192 * The lookup key for a string that is sent out with 193 * {@link #ACTION_CAPTIVE_PORTAL_SIGN_IN}. This string must be 194 * passed in to {@link #reportCaptivePortalDismissed} and 195 * {@link #ignoreNetworkWithCaptivePortal}. Retrieve it with 196 * {@link android.content.Intent#getStringExtra(String)}. 197 */ 198 public static final String EXTRA_CAPTIVE_PORTAL_TOKEN = "captivePortalToken"; 199 200 /** 201 * Broadcast action to indicate the change of data activity status 202 * (idle or active) on a network in a recent period. 203 * The network becomes active when data transmission is started, or 204 * idle if there is no data transmission for a period of time. 205 * {@hide} 206 */ 207 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 208 public static final String ACTION_DATA_ACTIVITY_CHANGE = "android.net.conn.DATA_ACTIVITY_CHANGE"; 209 /** 210 * The lookup key for an enum that indicates the network device type on which this data activity 211 * change happens. 212 * {@hide} 213 */ 214 public static final String EXTRA_DEVICE_TYPE = "deviceType"; 215 /** 216 * The lookup key for a boolean that indicates the device is active or not. {@code true} means 217 * it is actively sending or receiving data and {@code false} means it is idle. 218 * {@hide} 219 */ 220 public static final String EXTRA_IS_ACTIVE = "isActive"; 221 /** 222 * The lookup key for a long that contains the timestamp (nanos) of the radio state change. 223 * {@hide} 224 */ 225 public static final String EXTRA_REALTIME_NS = "tsNanos"; 226 227 /** 228 * Broadcast Action: The setting for background data usage has changed 229 * values. Use {@link #getBackgroundDataSetting()} to get the current value. 230 * <p> 231 * If an application uses the network in the background, it should listen 232 * for this broadcast and stop using the background data if the value is 233 * {@code false}. 234 * <p> 235 * 236 * @deprecated As of {@link VERSION_CODES#ICE_CREAM_SANDWICH}, availability 237 * of background data depends on several combined factors, and 238 * this broadcast is no longer sent. Instead, when background 239 * data is unavailable, {@link #getActiveNetworkInfo()} will now 240 * appear disconnected. During first boot after a platform 241 * upgrade, this broadcast will be sent once if 242 * {@link #getBackgroundDataSetting()} was {@code false} before 243 * the upgrade. 244 */ 245 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 246 @Deprecated 247 public static final String ACTION_BACKGROUND_DATA_SETTING_CHANGED = 248 "android.net.conn.BACKGROUND_DATA_SETTING_CHANGED"; 249 250 /** 251 * Broadcast Action: The network connection may not be good 252 * uses {@code ConnectivityManager.EXTRA_INET_CONDITION} and 253 * {@code ConnectivityManager.EXTRA_NETWORK_INFO} to specify 254 * the network and it's condition. 255 * @hide 256 */ 257 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 258 public static final String INET_CONDITION_ACTION = 259 "android.net.conn.INET_CONDITION_ACTION"; 260 261 /** 262 * Broadcast Action: A tetherable connection has come or gone. 263 * Uses {@code ConnectivityManager.EXTRA_AVAILABLE_TETHER}, 264 * {@code ConnectivityManager.EXTRA_ACTIVE_TETHER} and 265 * {@code ConnectivityManager.EXTRA_ERRORED_TETHER} to indicate 266 * the current state of tethering. Each include a list of 267 * interface names in that state (may be empty). 268 * @hide 269 */ 270 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 271 public static final String ACTION_TETHER_STATE_CHANGED = 272 "android.net.conn.TETHER_STATE_CHANGED"; 273 274 /** 275 * @hide 276 * gives a String[] listing all the interfaces configured for 277 * tethering and currently available for tethering. 278 */ 279 public static final String EXTRA_AVAILABLE_TETHER = "availableArray"; 280 281 /** 282 * @hide 283 * gives a String[] listing all the interfaces currently tethered 284 * (ie, has dhcp support and packets potentially forwarded/NATed) 285 */ 286 public static final String EXTRA_ACTIVE_TETHER = "activeArray"; 287 288 /** 289 * @hide 290 * gives a String[] listing all the interfaces we tried to tether and 291 * failed. Use {@link #getLastTetherError} to find the error code 292 * for any interfaces listed here. 293 */ 294 public static final String EXTRA_ERRORED_TETHER = "erroredArray"; 295 296 /** 297 * Broadcast Action: The captive portal tracker has finished its test. 298 * Sent only while running Setup Wizard, in lieu of showing a user 299 * notification. 300 * @hide 301 */ 302 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 303 public static final String ACTION_CAPTIVE_PORTAL_TEST_COMPLETED = 304 "android.net.conn.CAPTIVE_PORTAL_TEST_COMPLETED"; 305 /** 306 * The lookup key for a boolean that indicates whether a captive portal was detected. 307 * Retrieve it with {@link android.content.Intent#getBooleanExtra(String,boolean)}. 308 * @hide 309 */ 310 public static final String EXTRA_IS_CAPTIVE_PORTAL = "captivePortal"; 311 312 /** 313 * Action used to display a dialog that asks the user whether to connect to a network that is 314 * not validated. This intent is used to start the dialog in settings via startActivity. 315 * 316 * @hide 317 */ 318 public static final String ACTION_PROMPT_UNVALIDATED = "android.net.conn.PROMPT_UNVALIDATED"; 319 320 /** 321 * The absence of a connection type. 322 * @hide 323 */ 324 public static final int TYPE_NONE = -1; 325 326 /** 327 * The Mobile data connection. When active, all data traffic 328 * will use this network type's interface by default 329 * (it has a default route) 330 */ 331 public static final int TYPE_MOBILE = 0; 332 /** 333 * The WIFI data connection. When active, all data traffic 334 * will use this network type's interface by default 335 * (it has a default route). 336 */ 337 public static final int TYPE_WIFI = 1; 338 /** 339 * An MMS-specific Mobile data connection. This network type may use the 340 * same network interface as {@link #TYPE_MOBILE} or it may use a different 341 * one. This is used by applications needing to talk to the carrier's 342 * Multimedia Messaging Service servers. 343 * 344 * @deprecated Applications should instead use 345 * {@link #requestNetwork(NetworkRequest, NetworkCallback)} to request a network that 346 * provides the {@link NetworkCapabilities#NET_CAPABILITY_MMS} capability. 347 */ 348 public static final int TYPE_MOBILE_MMS = 2; 349 /** 350 * A SUPL-specific Mobile data connection. This network type may use the 351 * same network interface as {@link #TYPE_MOBILE} or it may use a different 352 * one. This is used by applications needing to talk to the carrier's 353 * Secure User Plane Location servers for help locating the device. 354 * 355 * @deprecated Applications should instead use 356 * {@link #requestNetwork(NetworkRequest, NetworkCallback)} to request a network that 357 * provides the {@link NetworkCapabilities#NET_CAPABILITY_SUPL} capability. 358 */ 359 public static final int TYPE_MOBILE_SUPL = 3; 360 /** 361 * A DUN-specific Mobile data connection. This network type may use the 362 * same network interface as {@link #TYPE_MOBILE} or it may use a different 363 * one. This is sometimes by the system when setting up an upstream connection 364 * for tethering so that the carrier is aware of DUN traffic. 365 */ 366 public static final int TYPE_MOBILE_DUN = 4; 367 /** 368 * A High Priority Mobile data connection. This network type uses the 369 * same network interface as {@link #TYPE_MOBILE} but the routing setup 370 * is different. 371 * 372 * @deprecated Applications should instead use 373 * {@link #requestNetwork(NetworkRequest, NetworkCallback)} to request a network that 374 * uses the {@link NetworkCapabilities#TRANSPORT_CELLULAR} transport. 375 */ 376 public static final int TYPE_MOBILE_HIPRI = 5; 377 /** 378 * The WiMAX data connection. When active, all data traffic 379 * will use this network type's interface by default 380 * (it has a default route). 381 */ 382 public static final int TYPE_WIMAX = 6; 383 384 /** 385 * The Bluetooth data connection. When active, all data traffic 386 * will use this network type's interface by default 387 * (it has a default route). 388 */ 389 public static final int TYPE_BLUETOOTH = 7; 390 391 /** 392 * Dummy data connection. This should not be used on shipping devices. 393 */ 394 public static final int TYPE_DUMMY = 8; 395 396 /** 397 * The Ethernet data connection. When active, all data traffic 398 * will use this network type's interface by default 399 * (it has a default route). 400 */ 401 public static final int TYPE_ETHERNET = 9; 402 403 /** 404 * Over the air Administration. 405 * {@hide} 406 */ 407 public static final int TYPE_MOBILE_FOTA = 10; 408 409 /** 410 * IP Multimedia Subsystem. 411 * {@hide} 412 */ 413 public static final int TYPE_MOBILE_IMS = 11; 414 415 /** 416 * Carrier Branded Services. 417 * {@hide} 418 */ 419 public static final int TYPE_MOBILE_CBS = 12; 420 421 /** 422 * A Wi-Fi p2p connection. Only requesting processes will have access to 423 * the peers connected. 424 * {@hide} 425 */ 426 public static final int TYPE_WIFI_P2P = 13; 427 428 /** 429 * The network to use for initially attaching to the network 430 * {@hide} 431 */ 432 public static final int TYPE_MOBILE_IA = 14; 433 434 /** 435 * Emergency PDN connection for emergency calls 436 * {@hide} 437 */ 438 public static final int TYPE_MOBILE_EMERGENCY = 15; 439 440 /** 441 * The network that uses proxy to achieve connectivity. 442 * {@hide} 443 */ 444 public static final int TYPE_PROXY = 16; 445 446 /** 447 * A virtual network using one or more native bearers. 448 * It may or may not be providing security services. 449 */ 450 public static final int TYPE_VPN = 17; 451 452 /** {@hide} */ 453 public static final int MAX_RADIO_TYPE = TYPE_VPN; 454 455 /** {@hide} */ 456 public static final int MAX_NETWORK_TYPE = TYPE_VPN; 457 458 /** 459 * If you want to set the default network preference,you can directly 460 * change the networkAttributes array in framework's config.xml. 461 * 462 * @deprecated Since we support so many more networks now, the single 463 * network default network preference can't really express 464 * the hierarchy. Instead, the default is defined by the 465 * networkAttributes in config.xml. You can determine 466 * the current value by calling {@link #getNetworkPreference()} 467 * from an App. 468 */ 469 @Deprecated 470 public static final int DEFAULT_NETWORK_PREFERENCE = TYPE_WIFI; 471 472 /** 473 * @hide 474 */ 475 public final static int REQUEST_ID_UNSET = 0; 476 477 /** 478 * A NetID indicating no Network is selected. 479 * Keep in sync with bionic/libc/dns/include/resolv_netid.h 480 * @hide 481 */ 482 public static final int NETID_UNSET = 0; 483 484 private final IConnectivityManager mService; 485 /** 486 * A kludge to facilitate static access where a Context pointer isn't available, like in the 487 * case of the static set/getProcessDefaultNetwork methods and from the Network class. 488 * TODO: Remove this after deprecating the static methods in favor of non-static methods or 489 * methods that take a Context argument. 490 */ 491 private static ConnectivityManager sInstance; 492 493 private INetworkManagementService mNMService; 494 495 /** 496 * Tests if a given integer represents a valid network type. 497 * @param networkType the type to be tested 498 * @return a boolean. {@code true} if the type is valid, else {@code false} 499 */ 500 public static boolean isNetworkTypeValid(int networkType) { 501 return networkType >= 0 && networkType <= MAX_NETWORK_TYPE; 502 } 503 504 /** 505 * Returns a non-localized string representing a given network type. 506 * ONLY used for debugging output. 507 * @param type the type needing naming 508 * @return a String for the given type, or a string version of the type ("87") 509 * if no name is known. 510 * {@hide} 511 */ 512 public static String getNetworkTypeName(int type) { 513 switch (type) { 514 case TYPE_MOBILE: 515 return "MOBILE"; 516 case TYPE_WIFI: 517 return "WIFI"; 518 case TYPE_MOBILE_MMS: 519 return "MOBILE_MMS"; 520 case TYPE_MOBILE_SUPL: 521 return "MOBILE_SUPL"; 522 case TYPE_MOBILE_DUN: 523 return "MOBILE_DUN"; 524 case TYPE_MOBILE_HIPRI: 525 return "MOBILE_HIPRI"; 526 case TYPE_WIMAX: 527 return "WIMAX"; 528 case TYPE_BLUETOOTH: 529 return "BLUETOOTH"; 530 case TYPE_DUMMY: 531 return "DUMMY"; 532 case TYPE_ETHERNET: 533 return "ETHERNET"; 534 case TYPE_MOBILE_FOTA: 535 return "MOBILE_FOTA"; 536 case TYPE_MOBILE_IMS: 537 return "MOBILE_IMS"; 538 case TYPE_MOBILE_CBS: 539 return "MOBILE_CBS"; 540 case TYPE_WIFI_P2P: 541 return "WIFI_P2P"; 542 case TYPE_MOBILE_IA: 543 return "MOBILE_IA"; 544 case TYPE_MOBILE_EMERGENCY: 545 return "MOBILE_EMERGENCY"; 546 case TYPE_PROXY: 547 return "PROXY"; 548 case TYPE_VPN: 549 return "VPN"; 550 default: 551 return Integer.toString(type); 552 } 553 } 554 555 /** 556 * Checks if a given type uses the cellular data connection. 557 * This should be replaced in the future by a network property. 558 * @param networkType the type to check 559 * @return a boolean - {@code true} if uses cellular network, else {@code false} 560 * {@hide} 561 */ 562 public static boolean isNetworkTypeMobile(int networkType) { 563 switch (networkType) { 564 case TYPE_MOBILE: 565 case TYPE_MOBILE_MMS: 566 case TYPE_MOBILE_SUPL: 567 case TYPE_MOBILE_DUN: 568 case TYPE_MOBILE_HIPRI: 569 case TYPE_MOBILE_FOTA: 570 case TYPE_MOBILE_IMS: 571 case TYPE_MOBILE_CBS: 572 case TYPE_MOBILE_IA: 573 case TYPE_MOBILE_EMERGENCY: 574 return true; 575 default: 576 return false; 577 } 578 } 579 580 /** 581 * Checks if the given network type is backed by a Wi-Fi radio. 582 * 583 * @hide 584 */ 585 public static boolean isNetworkTypeWifi(int networkType) { 586 switch (networkType) { 587 case TYPE_WIFI: 588 case TYPE_WIFI_P2P: 589 return true; 590 default: 591 return false; 592 } 593 } 594 595 /** 596 * Specifies the preferred network type. When the device has more 597 * than one type available the preferred network type will be used. 598 * 599 * @param preference the network type to prefer over all others. It is 600 * unspecified what happens to the old preferred network in the 601 * overall ordering. 602 * @deprecated Functionality has been removed as it no longer makes sense, 603 * with many more than two networks - we'd need an array to express 604 * preference. Instead we use dynamic network properties of 605 * the networks to describe their precedence. 606 */ 607 public void setNetworkPreference(int preference) { 608 } 609 610 /** 611 * Retrieves the current preferred network type. 612 * 613 * @return an integer representing the preferred network type 614 * 615 * <p>This method requires the caller to hold the permission 616 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 617 * @deprecated Functionality has been removed as it no longer makes sense, 618 * with many more than two networks - we'd need an array to express 619 * preference. Instead we use dynamic network properties of 620 * the networks to describe their precedence. 621 */ 622 public int getNetworkPreference() { 623 return TYPE_NONE; 624 } 625 626 /** 627 * Returns details about the currently active default data network. When 628 * connected, this network is the default route for outgoing connections. 629 * You should always check {@link NetworkInfo#isConnected()} before initiating 630 * network traffic. This may return {@code null} when there is no default 631 * network. 632 * 633 * @return a {@link NetworkInfo} object for the current default network 634 * or {@code null} if no default network is currently active 635 * 636 * <p>This method requires the caller to hold the permission 637 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 638 */ 639 public NetworkInfo getActiveNetworkInfo() { 640 try { 641 return mService.getActiveNetworkInfo(); 642 } catch (RemoteException e) { 643 return null; 644 } 645 } 646 647 /** 648 * Returns a {@link Network} object corresponding to the currently active 649 * default data network. In the event that the current active default data 650 * network disconnects, the returned {@code Network} object will no longer 651 * be usable. This will return {@code null} when there is no default 652 * network. 653 * 654 * @return a {@link Network} object for the current default network or 655 * {@code null} if no default network is currently active 656 * 657 * <p>This method requires the caller to hold the permission 658 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 659 */ 660 public Network getActiveNetwork() { 661 try { 662 return mService.getActiveNetwork(); 663 } catch (RemoteException e) { 664 return null; 665 } 666 } 667 668 /** 669 * Returns details about the currently active default data network 670 * for a given uid. This is for internal use only to avoid spying 671 * other apps. 672 * 673 * @return a {@link NetworkInfo} object for the current default network 674 * for the given uid or {@code null} if no default network is 675 * available for the specified uid. 676 * 677 * <p>This method requires the caller to hold the permission 678 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL} 679 * {@hide} 680 */ 681 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 682 try { 683 return mService.getActiveNetworkInfoForUid(uid); 684 } catch (RemoteException e) { 685 return null; 686 } 687 } 688 689 /** 690 * Returns connection status information about a particular 691 * network type. 692 * 693 * @param networkType integer specifying which networkType in 694 * which you're interested. 695 * @return a {@link NetworkInfo} object for the requested 696 * network type or {@code null} if the type is not 697 * supported by the device. 698 * 699 * <p>This method requires the caller to hold the permission 700 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 701 * 702 * @deprecated This method does not support multiple connected networks 703 * of the same type. Use {@link #getAllNetworks} and 704 * {@link #getNetworkInfo(android.net.Network)} instead. 705 */ 706 public NetworkInfo getNetworkInfo(int networkType) { 707 try { 708 return mService.getNetworkInfo(networkType); 709 } catch (RemoteException e) { 710 return null; 711 } 712 } 713 714 /** 715 * Returns connection status information about a particular 716 * Network. 717 * 718 * @param network {@link Network} specifying which network 719 * in which you're interested. 720 * @return a {@link NetworkInfo} object for the requested 721 * network or {@code null} if the {@code Network} 722 * is not valid. 723 * 724 * <p>This method requires the caller to hold the permission 725 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 726 */ 727 public NetworkInfo getNetworkInfo(Network network) { 728 try { 729 return mService.getNetworkInfoForNetwork(network); 730 } catch (RemoteException e) { 731 return null; 732 } 733 } 734 735 /** 736 * Returns connection status information about all network 737 * types supported by the device. 738 * 739 * @return an array of {@link NetworkInfo} objects. Check each 740 * {@link NetworkInfo#getType} for which type each applies. 741 * 742 * <p>This method requires the caller to hold the permission 743 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 744 * 745 * @deprecated This method does not support multiple connected networks 746 * of the same type. Use {@link #getAllNetworks} and 747 * {@link #getNetworkInfo(android.net.Network)} instead. 748 */ 749 public NetworkInfo[] getAllNetworkInfo() { 750 try { 751 return mService.getAllNetworkInfo(); 752 } catch (RemoteException e) { 753 return null; 754 } 755 } 756 757 /** 758 * Returns the {@link Network} object currently serving a given type, or 759 * null if the given type is not connected. 760 * 761 * <p>This method requires the caller to hold the permission 762 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 763 * 764 * @hide 765 * @deprecated This method does not support multiple connected networks 766 * of the same type. Use {@link #getAllNetworks} and 767 * {@link #getNetworkInfo(android.net.Network)} instead. 768 */ 769 public Network getNetworkForType(int networkType) { 770 try { 771 return mService.getNetworkForType(networkType); 772 } catch (RemoteException e) { 773 return null; 774 } 775 } 776 777 /** 778 * Returns an array of all {@link Network} currently tracked by the 779 * framework. 780 * 781 * @return an array of {@link Network} objects. 782 * 783 * <p>This method requires the caller to hold the permission 784 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 785 */ 786 public Network[] getAllNetworks() { 787 try { 788 return mService.getAllNetworks(); 789 } catch (RemoteException e) { 790 return null; 791 } 792 } 793 794 /** 795 * Returns an array of {@link android.net.NetworkCapabilities} objects, representing 796 * the Networks that applications run by the given user will use by default. 797 * @hide 798 */ 799 public NetworkCapabilities[] getDefaultNetworkCapabilitiesForUser(int userId) { 800 try { 801 return mService.getDefaultNetworkCapabilitiesForUser(userId); 802 } catch (RemoteException e) { 803 return null; 804 } 805 } 806 807 /** 808 * Returns details about the Provisioning or currently active default data network. When 809 * connected, this network is the default route for outgoing connections. 810 * You should always check {@link NetworkInfo#isConnected()} before initiating 811 * network traffic. This may return {@code null} when there is no default 812 * network. 813 * 814 * @return a {@link NetworkInfo} object for the current default network 815 * or {@code null} if no default network is currently active 816 * 817 * <p>This method requires the caller to hold the permission 818 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 819 * 820 * {@hide} 821 */ 822 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 823 try { 824 return mService.getProvisioningOrActiveNetworkInfo(); 825 } catch (RemoteException e) { 826 return null; 827 } 828 } 829 830 /** 831 * Returns the IP information for the current default network. 832 * 833 * @return a {@link LinkProperties} object describing the IP info 834 * for the current default network, or {@code null} if there 835 * is no current default network. 836 * 837 * <p>This method requires the caller to hold the permission 838 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 839 * {@hide} 840 */ 841 public LinkProperties getActiveLinkProperties() { 842 try { 843 return mService.getActiveLinkProperties(); 844 } catch (RemoteException e) { 845 return null; 846 } 847 } 848 849 /** 850 * Returns the IP information for a given network type. 851 * 852 * @param networkType the network type of interest. 853 * @return a {@link LinkProperties} object describing the IP info 854 * for the given networkType, or {@code null} if there is 855 * no current default network. 856 * 857 * <p>This method requires the caller to hold the permission 858 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 859 * {@hide} 860 * @deprecated This method does not support multiple connected networks 861 * of the same type. Use {@link #getAllNetworks}, 862 * {@link #getNetworkInfo(android.net.Network)}, and 863 * {@link #getLinkProperties(android.net.Network)} instead. 864 */ 865 public LinkProperties getLinkProperties(int networkType) { 866 try { 867 return mService.getLinkPropertiesForType(networkType); 868 } catch (RemoteException e) { 869 return null; 870 } 871 } 872 873 /** 874 * Get the {@link LinkProperties} for the given {@link Network}. This 875 * will return {@code null} if the network is unknown. 876 * 877 * @param network The {@link Network} object identifying the network in question. 878 * @return The {@link LinkProperties} for the network, or {@code null}. 879 **/ 880 public LinkProperties getLinkProperties(Network network) { 881 try { 882 return mService.getLinkProperties(network); 883 } catch (RemoteException e) { 884 return null; 885 } 886 } 887 888 /** 889 * Get the {@link android.net.NetworkCapabilities} for the given {@link Network}. This 890 * will return {@code null} if the network is unknown. 891 * 892 * @param network The {@link Network} object identifying the network in question. 893 * @return The {@link android.net.NetworkCapabilities} for the network, or {@code null}. 894 */ 895 public NetworkCapabilities getNetworkCapabilities(Network network) { 896 try { 897 return mService.getNetworkCapabilities(network); 898 } catch (RemoteException e) { 899 return null; 900 } 901 } 902 903 /** 904 * Tells the underlying networking system that the caller wants to 905 * begin using the named feature. The interpretation of {@code feature} 906 * is completely up to each networking implementation. 907 * <p>This method requires the caller to hold the permission 908 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 909 * @param networkType specifies which network the request pertains to 910 * @param feature the name of the feature to be used 911 * @return an integer value representing the outcome of the request. 912 * The interpretation of this value is specific to each networking 913 * implementation+feature combination, except that the value {@code -1} 914 * always indicates failure. 915 * 916 * @deprecated Deprecated in favor of the cleaner 917 * {@link #requestNetwork(NetworkRequest, NetworkCallback)} API. 918 * @removed 919 */ 920 public int startUsingNetworkFeature(int networkType, String feature) { 921 NetworkCapabilities netCap = networkCapabilitiesForFeature(networkType, feature); 922 if (netCap == null) { 923 Log.d(TAG, "Can't satisfy startUsingNetworkFeature for " + networkType + ", " + 924 feature); 925 return PhoneConstants.APN_REQUEST_FAILED; 926 } 927 928 NetworkRequest request = null; 929 synchronized (sLegacyRequests) { 930 LegacyRequest l = sLegacyRequests.get(netCap); 931 if (l != null) { 932 Log.d(TAG, "renewing startUsingNetworkFeature request " + l.networkRequest); 933 renewRequestLocked(l); 934 if (l.currentNetwork != null) { 935 return PhoneConstants.APN_ALREADY_ACTIVE; 936 } else { 937 return PhoneConstants.APN_REQUEST_STARTED; 938 } 939 } 940 941 request = requestNetworkForFeatureLocked(netCap); 942 } 943 if (request != null) { 944 Log.d(TAG, "starting startUsingNetworkFeature for request " + request); 945 return PhoneConstants.APN_REQUEST_STARTED; 946 } else { 947 Log.d(TAG, " request Failed"); 948 return PhoneConstants.APN_REQUEST_FAILED; 949 } 950 } 951 952 /** 953 * Tells the underlying networking system that the caller is finished 954 * using the named feature. The interpretation of {@code feature} 955 * is completely up to each networking implementation. 956 * <p>This method requires the caller to hold the permission 957 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 958 * @param networkType specifies which network the request pertains to 959 * @param feature the name of the feature that is no longer needed 960 * @return an integer value representing the outcome of the request. 961 * The interpretation of this value is specific to each networking 962 * implementation+feature combination, except that the value {@code -1} 963 * always indicates failure. 964 * 965 * @deprecated Deprecated in favor of the cleaner {@link unregisterNetworkCallback} API. 966 * @removed 967 */ 968 public int stopUsingNetworkFeature(int networkType, String feature) { 969 NetworkCapabilities netCap = networkCapabilitiesForFeature(networkType, feature); 970 if (netCap == null) { 971 Log.d(TAG, "Can't satisfy stopUsingNetworkFeature for " + networkType + ", " + 972 feature); 973 return -1; 974 } 975 976 if (removeRequestForFeature(netCap)) { 977 Log.d(TAG, "stopUsingNetworkFeature for " + networkType + ", " + feature); 978 } 979 return 1; 980 } 981 982 /** 983 * Removes the NET_CAPABILITY_NOT_RESTRICTED capability from the given 984 * NetworkCapabilities object if all the capabilities it provides are 985 * typically provided by restricted networks. 986 * 987 * TODO: consider: 988 * - Moving to NetworkCapabilities 989 * - Renaming it to guessRestrictedCapability and make it set the 990 * restricted capability bit in addition to clearing it. 991 * @hide 992 */ 993 public static void maybeMarkCapabilitiesRestricted(NetworkCapabilities nc) { 994 for (int capability : nc.getCapabilities()) { 995 switch (capability) { 996 case NetworkCapabilities.NET_CAPABILITY_CBS: 997 case NetworkCapabilities.NET_CAPABILITY_DUN: 998 case NetworkCapabilities.NET_CAPABILITY_EIMS: 999 case NetworkCapabilities.NET_CAPABILITY_FOTA: 1000 case NetworkCapabilities.NET_CAPABILITY_IA: 1001 case NetworkCapabilities.NET_CAPABILITY_IMS: 1002 case NetworkCapabilities.NET_CAPABILITY_RCS: 1003 case NetworkCapabilities.NET_CAPABILITY_XCAP: 1004 case NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED: //there by default 1005 continue; 1006 default: 1007 // At least one capability usually provided by unrestricted 1008 // networks. Conclude that this network is unrestricted. 1009 return; 1010 } 1011 } 1012 // All the capabilities are typically provided by restricted networks. 1013 // Conclude that this network is restricted. 1014 nc.removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 1015 } 1016 1017 private NetworkCapabilities networkCapabilitiesForFeature(int networkType, String feature) { 1018 if (networkType == TYPE_MOBILE) { 1019 int cap = -1; 1020 if ("enableMMS".equals(feature)) { 1021 cap = NetworkCapabilities.NET_CAPABILITY_MMS; 1022 } else if ("enableSUPL".equals(feature)) { 1023 cap = NetworkCapabilities.NET_CAPABILITY_SUPL; 1024 } else if ("enableDUN".equals(feature) || "enableDUNAlways".equals(feature)) { 1025 cap = NetworkCapabilities.NET_CAPABILITY_DUN; 1026 } else if ("enableHIPRI".equals(feature)) { 1027 cap = NetworkCapabilities.NET_CAPABILITY_INTERNET; 1028 } else if ("enableFOTA".equals(feature)) { 1029 cap = NetworkCapabilities.NET_CAPABILITY_FOTA; 1030 } else if ("enableIMS".equals(feature)) { 1031 cap = NetworkCapabilities.NET_CAPABILITY_IMS; 1032 } else if ("enableCBS".equals(feature)) { 1033 cap = NetworkCapabilities.NET_CAPABILITY_CBS; 1034 } else { 1035 return null; 1036 } 1037 NetworkCapabilities netCap = new NetworkCapabilities(); 1038 netCap.addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR).addCapability(cap); 1039 maybeMarkCapabilitiesRestricted(netCap); 1040 return netCap; 1041 } else if (networkType == TYPE_WIFI) { 1042 if ("p2p".equals(feature)) { 1043 NetworkCapabilities netCap = new NetworkCapabilities(); 1044 netCap.addTransportType(NetworkCapabilities.TRANSPORT_WIFI); 1045 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_WIFI_P2P); 1046 maybeMarkCapabilitiesRestricted(netCap); 1047 return netCap; 1048 } 1049 } 1050 return null; 1051 } 1052 1053 /** 1054 * Guess what the network request was trying to say so that the resulting 1055 * network is accessible via the legacy (deprecated) API such as 1056 * requestRouteToHost. 1057 * This means we should try to be fairly preceise about transport and 1058 * capability but ignore things such as networkSpecifier. 1059 * If the request has more than one transport or capability it doesn't 1060 * match the old legacy requests (they selected only single transport/capability) 1061 * so this function cannot map the request to a single legacy type and 1062 * the resulting network will not be available to the legacy APIs. 1063 * 1064 * TODO - This should be removed when the legacy APIs are removed. 1065 */ 1066 private int inferLegacyTypeForNetworkCapabilities(NetworkCapabilities netCap) { 1067 if (netCap == null) { 1068 return TYPE_NONE; 1069 } 1070 1071 if (!netCap.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)) { 1072 return TYPE_NONE; 1073 } 1074 1075 String type = null; 1076 int result = TYPE_NONE; 1077 1078 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_CBS)) { 1079 type = "enableCBS"; 1080 result = TYPE_MOBILE_CBS; 1081 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_IMS)) { 1082 type = "enableIMS"; 1083 result = TYPE_MOBILE_IMS; 1084 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_FOTA)) { 1085 type = "enableFOTA"; 1086 result = TYPE_MOBILE_FOTA; 1087 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_DUN)) { 1088 type = "enableDUN"; 1089 result = TYPE_MOBILE_DUN; 1090 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_SUPL)) { 1091 type = "enableSUPL"; 1092 result = TYPE_MOBILE_SUPL; 1093 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_MMS)) { 1094 type = "enableMMS"; 1095 result = TYPE_MOBILE_MMS; 1096 } else if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)) { 1097 type = "enableHIPRI"; 1098 result = TYPE_MOBILE_HIPRI; 1099 } 1100 if (type != null) { 1101 NetworkCapabilities testCap = networkCapabilitiesForFeature(TYPE_MOBILE, type); 1102 if (testCap.equalsNetCapabilities(netCap) && testCap.equalsTransportTypes(netCap)) { 1103 return result; 1104 } 1105 } 1106 return TYPE_NONE; 1107 } 1108 1109 private int legacyTypeForNetworkCapabilities(NetworkCapabilities netCap) { 1110 if (netCap == null) return TYPE_NONE; 1111 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_CBS)) { 1112 return TYPE_MOBILE_CBS; 1113 } 1114 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_IMS)) { 1115 return TYPE_MOBILE_IMS; 1116 } 1117 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_FOTA)) { 1118 return TYPE_MOBILE_FOTA; 1119 } 1120 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_DUN)) { 1121 return TYPE_MOBILE_DUN; 1122 } 1123 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_SUPL)) { 1124 return TYPE_MOBILE_SUPL; 1125 } 1126 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_MMS)) { 1127 return TYPE_MOBILE_MMS; 1128 } 1129 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)) { 1130 return TYPE_MOBILE_HIPRI; 1131 } 1132 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_WIFI_P2P)) { 1133 return TYPE_WIFI_P2P; 1134 } 1135 return TYPE_NONE; 1136 } 1137 1138 private static class LegacyRequest { 1139 NetworkCapabilities networkCapabilities; 1140 NetworkRequest networkRequest; 1141 int expireSequenceNumber; 1142 Network currentNetwork; 1143 int delay = -1; 1144 1145 private void clearDnsBinding() { 1146 if (currentNetwork != null) { 1147 currentNetwork = null; 1148 setProcessDefaultNetworkForHostResolution(null); 1149 } 1150 } 1151 1152 NetworkCallback networkCallback = new NetworkCallback() { 1153 @Override 1154 public void onAvailable(Network network) { 1155 currentNetwork = network; 1156 Log.d(TAG, "startUsingNetworkFeature got Network:" + network); 1157 setProcessDefaultNetworkForHostResolution(network); 1158 } 1159 @Override 1160 public void onLost(Network network) { 1161 if (network.equals(currentNetwork)) clearDnsBinding(); 1162 Log.d(TAG, "startUsingNetworkFeature lost Network:" + network); 1163 } 1164 }; 1165 } 1166 1167 private static HashMap<NetworkCapabilities, LegacyRequest> sLegacyRequests = 1168 new HashMap<NetworkCapabilities, LegacyRequest>(); 1169 1170 private NetworkRequest findRequestForFeature(NetworkCapabilities netCap) { 1171 synchronized (sLegacyRequests) { 1172 LegacyRequest l = sLegacyRequests.get(netCap); 1173 if (l != null) return l.networkRequest; 1174 } 1175 return null; 1176 } 1177 1178 private void renewRequestLocked(LegacyRequest l) { 1179 l.expireSequenceNumber++; 1180 Log.d(TAG, "renewing request to seqNum " + l.expireSequenceNumber); 1181 sendExpireMsgForFeature(l.networkCapabilities, l.expireSequenceNumber, l.delay); 1182 } 1183 1184 private void expireRequest(NetworkCapabilities netCap, int sequenceNum) { 1185 int ourSeqNum = -1; 1186 synchronized (sLegacyRequests) { 1187 LegacyRequest l = sLegacyRequests.get(netCap); 1188 if (l == null) return; 1189 ourSeqNum = l.expireSequenceNumber; 1190 if (l.expireSequenceNumber == sequenceNum) removeRequestForFeature(netCap); 1191 } 1192 Log.d(TAG, "expireRequest with " + ourSeqNum + ", " + sequenceNum); 1193 } 1194 1195 private NetworkRequest requestNetworkForFeatureLocked(NetworkCapabilities netCap) { 1196 int delay = -1; 1197 int type = legacyTypeForNetworkCapabilities(netCap); 1198 try { 1199 delay = mService.getRestoreDefaultNetworkDelay(type); 1200 } catch (RemoteException e) {} 1201 LegacyRequest l = new LegacyRequest(); 1202 l.networkCapabilities = netCap; 1203 l.delay = delay; 1204 l.expireSequenceNumber = 0; 1205 l.networkRequest = sendRequestForNetwork(netCap, l.networkCallback, 0, 1206 REQUEST, type); 1207 if (l.networkRequest == null) return null; 1208 sLegacyRequests.put(netCap, l); 1209 sendExpireMsgForFeature(netCap, l.expireSequenceNumber, delay); 1210 return l.networkRequest; 1211 } 1212 1213 private void sendExpireMsgForFeature(NetworkCapabilities netCap, int seqNum, int delay) { 1214 if (delay >= 0) { 1215 Log.d(TAG, "sending expire msg with seqNum " + seqNum + " and delay " + delay); 1216 Message msg = sCallbackHandler.obtainMessage(EXPIRE_LEGACY_REQUEST, seqNum, 0, netCap); 1217 sCallbackHandler.sendMessageDelayed(msg, delay); 1218 } 1219 } 1220 1221 private boolean removeRequestForFeature(NetworkCapabilities netCap) { 1222 final LegacyRequest l; 1223 synchronized (sLegacyRequests) { 1224 l = sLegacyRequests.remove(netCap); 1225 } 1226 if (l == null) return false; 1227 unregisterNetworkCallback(l.networkCallback); 1228 l.clearDnsBinding(); 1229 return true; 1230 } 1231 1232 /** 1233 * Ensure that a network route exists to deliver traffic to the specified 1234 * host via the specified network interface. An attempt to add a route that 1235 * already exists is ignored, but treated as successful. 1236 * <p>This method requires the caller to hold the permission 1237 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1238 * @param networkType the type of the network over which traffic to the specified 1239 * host is to be routed 1240 * @param hostAddress the IP address of the host to which the route is desired 1241 * @return {@code true} on success, {@code false} on failure 1242 * 1243 * @deprecated Deprecated in favor of the 1244 * {@link #requestNetwork(NetworkRequest, NetworkCallback)}, 1245 * {@link #bindProcessToNetwork} and {@link Network#getSocketFactory} API. 1246 * @removed 1247 */ 1248 public boolean requestRouteToHost(int networkType, int hostAddress) { 1249 return requestRouteToHostAddress(networkType, NetworkUtils.intToInetAddress(hostAddress)); 1250 } 1251 1252 /** 1253 * Ensure that a network route exists to deliver traffic to the specified 1254 * host via the specified network interface. An attempt to add a route that 1255 * already exists is ignored, but treated as successful. 1256 * <p>This method requires the caller to hold the permission 1257 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1258 * @param networkType the type of the network over which traffic to the specified 1259 * host is to be routed 1260 * @param hostAddress the IP address of the host to which the route is desired 1261 * @return {@code true} on success, {@code false} on failure 1262 * @hide 1263 * @deprecated Deprecated in favor of the {@link #requestNetwork} and 1264 * {@link #bindProcessToNetwork} API. 1265 * @removed 1266 */ 1267 public boolean requestRouteToHostAddress(int networkType, InetAddress hostAddress) { 1268 try { 1269 return mService.requestRouteToHostAddress(networkType, hostAddress.getAddress()); 1270 } catch (RemoteException e) { 1271 return false; 1272 } 1273 } 1274 1275 /** 1276 * Returns the value of the setting for background data usage. If false, 1277 * applications should not use the network if the application is not in the 1278 * foreground. Developers should respect this setting, and check the value 1279 * of this before performing any background data operations. 1280 * <p> 1281 * All applications that have background services that use the network 1282 * should listen to {@link #ACTION_BACKGROUND_DATA_SETTING_CHANGED}. 1283 * <p> 1284 * @deprecated As of {@link VERSION_CODES#ICE_CREAM_SANDWICH}, availability of 1285 * background data depends on several combined factors, and this method will 1286 * always return {@code true}. Instead, when background data is unavailable, 1287 * {@link #getActiveNetworkInfo()} will now appear disconnected. 1288 * 1289 * @return Whether background data usage is allowed. 1290 */ 1291 @Deprecated 1292 public boolean getBackgroundDataSetting() { 1293 // assume that background data is allowed; final authority is 1294 // NetworkInfo which may be blocked. 1295 return true; 1296 } 1297 1298 /** 1299 * Sets the value of the setting for background data usage. 1300 * 1301 * @param allowBackgroundData Whether an application should use data while 1302 * it is in the background. 1303 * 1304 * @attr ref android.Manifest.permission#CHANGE_BACKGROUND_DATA_SETTING 1305 * @see #getBackgroundDataSetting() 1306 * @hide 1307 */ 1308 @Deprecated 1309 public void setBackgroundDataSetting(boolean allowBackgroundData) { 1310 // ignored 1311 } 1312 1313 /** 1314 * Return quota status for the current active network, or {@code null} if no 1315 * network is active. Quota status can change rapidly, so these values 1316 * shouldn't be cached. 1317 * 1318 * <p>This method requires the caller to hold the permission 1319 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1320 * 1321 * @hide 1322 */ 1323 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1324 try { 1325 return mService.getActiveNetworkQuotaInfo(); 1326 } catch (RemoteException e) { 1327 return null; 1328 } 1329 } 1330 1331 /** 1332 * @hide 1333 * @deprecated Talk to TelephonyManager directly 1334 */ 1335 public boolean getMobileDataEnabled() { 1336 IBinder b = ServiceManager.getService(Context.TELEPHONY_SERVICE); 1337 if (b != null) { 1338 try { 1339 ITelephony it = ITelephony.Stub.asInterface(b); 1340 int subId = SubscriptionManager.getDefaultDataSubId(); 1341 Log.d("ConnectivityManager", "getMobileDataEnabled()+ subId=" + subId); 1342 boolean retVal = it.getDataEnabled(subId); 1343 Log.d("ConnectivityManager", "getMobileDataEnabled()- subId=" + subId 1344 + " retVal=" + retVal); 1345 return retVal; 1346 } catch (RemoteException e) { } 1347 } 1348 Log.d("ConnectivityManager", "getMobileDataEnabled()- remote exception retVal=false"); 1349 return false; 1350 } 1351 1352 /** 1353 * Callback for use with {@link ConnectivityManager#addDefaultNetworkActiveListener} 1354 * to find out when the system default network has gone in to a high power state. 1355 */ 1356 public interface OnNetworkActiveListener { 1357 /** 1358 * Called on the main thread of the process to report that the current data network 1359 * has become active, and it is now a good time to perform any pending network 1360 * operations. Note that this listener only tells you when the network becomes 1361 * active; if at any other time you want to know whether it is active (and thus okay 1362 * to initiate network traffic), you can retrieve its instantaneous state with 1363 * {@link ConnectivityManager#isDefaultNetworkActive}. 1364 */ 1365 public void onNetworkActive(); 1366 } 1367 1368 private INetworkManagementService getNetworkManagementService() { 1369 synchronized (this) { 1370 if (mNMService != null) { 1371 return mNMService; 1372 } 1373 IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE); 1374 mNMService = INetworkManagementService.Stub.asInterface(b); 1375 return mNMService; 1376 } 1377 } 1378 1379 private final ArrayMap<OnNetworkActiveListener, INetworkActivityListener> 1380 mNetworkActivityListeners 1381 = new ArrayMap<OnNetworkActiveListener, INetworkActivityListener>(); 1382 1383 /** 1384 * Start listening to reports when the system's default data network is active, meaning it is 1385 * a good time to perform network traffic. Use {@link #isDefaultNetworkActive()} 1386 * to determine the current state of the system's default network after registering the 1387 * listener. 1388 * <p> 1389 * If the process default network has been set with 1390 * {@link ConnectivityManager#bindProcessToNetwork} this function will not 1391 * reflect the process's default, but the system default. 1392 * 1393 * @param l The listener to be told when the network is active. 1394 */ 1395 public void addDefaultNetworkActiveListener(final OnNetworkActiveListener l) { 1396 INetworkActivityListener rl = new INetworkActivityListener.Stub() { 1397 @Override 1398 public void onNetworkActive() throws RemoteException { 1399 l.onNetworkActive(); 1400 } 1401 }; 1402 1403 try { 1404 getNetworkManagementService().registerNetworkActivityListener(rl); 1405 mNetworkActivityListeners.put(l, rl); 1406 } catch (RemoteException e) { 1407 } 1408 } 1409 1410 /** 1411 * Remove network active listener previously registered with 1412 * {@link #addDefaultNetworkActiveListener}. 1413 * 1414 * @param l Previously registered listener. 1415 */ 1416 public void removeDefaultNetworkActiveListener(OnNetworkActiveListener l) { 1417 INetworkActivityListener rl = mNetworkActivityListeners.get(l); 1418 if (rl == null) { 1419 throw new IllegalArgumentException("Listener not registered: " + l); 1420 } 1421 try { 1422 getNetworkManagementService().unregisterNetworkActivityListener(rl); 1423 } catch (RemoteException e) { 1424 } 1425 } 1426 1427 /** 1428 * Return whether the data network is currently active. An active network means that 1429 * it is currently in a high power state for performing data transmission. On some 1430 * types of networks, it may be expensive to move and stay in such a state, so it is 1431 * more power efficient to batch network traffic together when the radio is already in 1432 * this state. This method tells you whether right now is currently a good time to 1433 * initiate network traffic, as the network is already active. 1434 */ 1435 public boolean isDefaultNetworkActive() { 1436 try { 1437 return getNetworkManagementService().isNetworkActive(); 1438 } catch (RemoteException e) { 1439 } 1440 return false; 1441 } 1442 1443 /** 1444 * {@hide} 1445 */ 1446 public ConnectivityManager(IConnectivityManager service) { 1447 mService = checkNotNull(service, "missing IConnectivityManager"); 1448 sInstance = this; 1449 } 1450 1451 /** {@hide} */ 1452 public static ConnectivityManager from(Context context) { 1453 return (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); 1454 } 1455 1456 /** {@hide */ 1457 public static final void enforceTetherChangePermission(Context context) { 1458 if (context.getResources().getStringArray( 1459 com.android.internal.R.array.config_mobile_hotspot_provision_app).length == 2) { 1460 // Have a provisioning app - must only let system apps (which check this app) 1461 // turn on tethering 1462 context.enforceCallingOrSelfPermission( 1463 android.Manifest.permission.CONNECTIVITY_INTERNAL, "ConnectivityService"); 1464 } else { 1465 context.enforceCallingOrSelfPermission( 1466 android.Manifest.permission.CHANGE_NETWORK_STATE, "ConnectivityService"); 1467 } 1468 } 1469 1470 /** 1471 * @deprecated - use getSystemService. This is a kludge to support static access in certain 1472 * situations where a Context pointer is unavailable. 1473 * @hide 1474 */ 1475 static ConnectivityManager getInstanceOrNull() { 1476 return sInstance; 1477 } 1478 1479 /** 1480 * @deprecated - use getSystemService. This is a kludge to support static access in certain 1481 * situations where a Context pointer is unavailable. 1482 * @hide 1483 */ 1484 private static ConnectivityManager getInstance() { 1485 if (getInstanceOrNull() == null) { 1486 throw new IllegalStateException("No ConnectivityManager yet constructed"); 1487 } 1488 return getInstanceOrNull(); 1489 } 1490 1491 /** 1492 * Get the set of tetherable, available interfaces. This list is limited by 1493 * device configuration and current interface existence. 1494 * 1495 * @return an array of 0 or more Strings of tetherable interface names. 1496 * 1497 * <p>This method requires the caller to hold the permission 1498 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1499 * {@hide} 1500 */ 1501 public String[] getTetherableIfaces() { 1502 try { 1503 return mService.getTetherableIfaces(); 1504 } catch (RemoteException e) { 1505 return new String[0]; 1506 } 1507 } 1508 1509 /** 1510 * Get the set of tethered interfaces. 1511 * 1512 * @return an array of 0 or more String of currently tethered interface names. 1513 * 1514 * <p>This method requires the caller to hold the permission 1515 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1516 * {@hide} 1517 */ 1518 public String[] getTetheredIfaces() { 1519 try { 1520 return mService.getTetheredIfaces(); 1521 } catch (RemoteException e) { 1522 return new String[0]; 1523 } 1524 } 1525 1526 /** 1527 * Get the set of interface names which attempted to tether but 1528 * failed. Re-attempting to tether may cause them to reset to the Tethered 1529 * state. Alternatively, causing the interface to be destroyed and recreated 1530 * may cause them to reset to the available state. 1531 * {@link ConnectivityManager#getLastTetherError} can be used to get more 1532 * information on the cause of the errors. 1533 * 1534 * @return an array of 0 or more String indicating the interface names 1535 * which failed to tether. 1536 * 1537 * <p>This method requires the caller to hold the permission 1538 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1539 * {@hide} 1540 */ 1541 public String[] getTetheringErroredIfaces() { 1542 try { 1543 return mService.getTetheringErroredIfaces(); 1544 } catch (RemoteException e) { 1545 return new String[0]; 1546 } 1547 } 1548 1549 /** 1550 * Get the set of tethered dhcp ranges. 1551 * 1552 * @return an array of 0 or more {@code String} of tethered dhcp ranges. 1553 * {@hide} 1554 */ 1555 public String[] getTetheredDhcpRanges() { 1556 try { 1557 return mService.getTetheredDhcpRanges(); 1558 } catch (RemoteException e) { 1559 return new String[0]; 1560 } 1561 } 1562 1563 /** 1564 * Attempt to tether the named interface. This will setup a dhcp server 1565 * on the interface, forward and NAT IP packets and forward DNS requests 1566 * to the best active upstream network interface. Note that if no upstream 1567 * IP network interface is available, dhcp will still run and traffic will be 1568 * allowed between the tethered devices and this device, though upstream net 1569 * access will of course fail until an upstream network interface becomes 1570 * active. 1571 * 1572 * @param iface the interface name to tether. 1573 * @return error a {@code TETHER_ERROR} value indicating success or failure type 1574 * 1575 * <p>This method requires the caller to hold the permission 1576 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1577 * {@hide} 1578 */ 1579 public int tether(String iface) { 1580 try { 1581 return mService.tether(iface); 1582 } catch (RemoteException e) { 1583 return TETHER_ERROR_SERVICE_UNAVAIL; 1584 } 1585 } 1586 1587 /** 1588 * Stop tethering the named interface. 1589 * 1590 * @param iface the interface name to untether. 1591 * @return error a {@code TETHER_ERROR} value indicating success or failure type 1592 * 1593 * <p>This method requires the caller to hold the permission 1594 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1595 * {@hide} 1596 */ 1597 public int untether(String iface) { 1598 try { 1599 return mService.untether(iface); 1600 } catch (RemoteException e) { 1601 return TETHER_ERROR_SERVICE_UNAVAIL; 1602 } 1603 } 1604 1605 /** 1606 * Check if the device allows for tethering. It may be disabled via 1607 * {@code ro.tether.denied} system property, Settings.TETHER_SUPPORTED or 1608 * due to device configuration. 1609 * 1610 * @return a boolean - {@code true} indicating Tethering is supported. 1611 * 1612 * <p>This method requires the caller to hold the permission 1613 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1614 * {@hide} 1615 */ 1616 public boolean isTetheringSupported() { 1617 try { 1618 return mService.isTetheringSupported(); 1619 } catch (RemoteException e) { 1620 return false; 1621 } 1622 } 1623 1624 /** 1625 * Get the list of regular expressions that define any tetherable 1626 * USB network interfaces. If USB tethering is not supported by the 1627 * device, this list should be empty. 1628 * 1629 * @return an array of 0 or more regular expression Strings defining 1630 * what interfaces are considered tetherable usb interfaces. 1631 * 1632 * <p>This method requires the caller to hold the permission 1633 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1634 * {@hide} 1635 */ 1636 public String[] getTetherableUsbRegexs() { 1637 try { 1638 return mService.getTetherableUsbRegexs(); 1639 } catch (RemoteException e) { 1640 return new String[0]; 1641 } 1642 } 1643 1644 /** 1645 * Get the list of regular expressions that define any tetherable 1646 * Wifi network interfaces. If Wifi tethering is not supported by the 1647 * device, this list should be empty. 1648 * 1649 * @return an array of 0 or more regular expression Strings defining 1650 * what interfaces are considered tetherable wifi interfaces. 1651 * 1652 * <p>This method requires the caller to hold the permission 1653 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1654 * {@hide} 1655 */ 1656 public String[] getTetherableWifiRegexs() { 1657 try { 1658 return mService.getTetherableWifiRegexs(); 1659 } catch (RemoteException e) { 1660 return new String[0]; 1661 } 1662 } 1663 1664 /** 1665 * Get the list of regular expressions that define any tetherable 1666 * Bluetooth network interfaces. If Bluetooth tethering is not supported by the 1667 * device, this list should be empty. 1668 * 1669 * @return an array of 0 or more regular expression Strings defining 1670 * what interfaces are considered tetherable bluetooth interfaces. 1671 * 1672 * <p>This method requires the caller to hold the permission 1673 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1674 * {@hide} 1675 */ 1676 public String[] getTetherableBluetoothRegexs() { 1677 try { 1678 return mService.getTetherableBluetoothRegexs(); 1679 } catch (RemoteException e) { 1680 return new String[0]; 1681 } 1682 } 1683 1684 /** 1685 * Attempt to both alter the mode of USB and Tethering of USB. A 1686 * utility method to deal with some of the complexity of USB - will 1687 * attempt to switch to Rndis and subsequently tether the resulting 1688 * interface on {@code true} or turn off tethering and switch off 1689 * Rndis on {@code false}. 1690 * 1691 * @param enable a boolean - {@code true} to enable tethering 1692 * @return error a {@code TETHER_ERROR} value indicating success or failure type 1693 * 1694 * <p>This method requires the caller to hold the permission 1695 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1696 * {@hide} 1697 */ 1698 public int setUsbTethering(boolean enable) { 1699 try { 1700 return mService.setUsbTethering(enable); 1701 } catch (RemoteException e) { 1702 return TETHER_ERROR_SERVICE_UNAVAIL; 1703 } 1704 } 1705 1706 /** {@hide} */ 1707 public static final int TETHER_ERROR_NO_ERROR = 0; 1708 /** {@hide} */ 1709 public static final int TETHER_ERROR_UNKNOWN_IFACE = 1; 1710 /** {@hide} */ 1711 public static final int TETHER_ERROR_SERVICE_UNAVAIL = 2; 1712 /** {@hide} */ 1713 public static final int TETHER_ERROR_UNSUPPORTED = 3; 1714 /** {@hide} */ 1715 public static final int TETHER_ERROR_UNAVAIL_IFACE = 4; 1716 /** {@hide} */ 1717 public static final int TETHER_ERROR_MASTER_ERROR = 5; 1718 /** {@hide} */ 1719 public static final int TETHER_ERROR_TETHER_IFACE_ERROR = 6; 1720 /** {@hide} */ 1721 public static final int TETHER_ERROR_UNTETHER_IFACE_ERROR = 7; 1722 /** {@hide} */ 1723 public static final int TETHER_ERROR_ENABLE_NAT_ERROR = 8; 1724 /** {@hide} */ 1725 public static final int TETHER_ERROR_DISABLE_NAT_ERROR = 9; 1726 /** {@hide} */ 1727 public static final int TETHER_ERROR_IFACE_CFG_ERROR = 10; 1728 1729 /** 1730 * Get a more detailed error code after a Tethering or Untethering 1731 * request asynchronously failed. 1732 * 1733 * @param iface The name of the interface of interest 1734 * @return error The error code of the last error tethering or untethering the named 1735 * interface 1736 * 1737 * <p>This method requires the caller to hold the permission 1738 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1739 * {@hide} 1740 */ 1741 public int getLastTetherError(String iface) { 1742 try { 1743 return mService.getLastTetherError(iface); 1744 } catch (RemoteException e) { 1745 return TETHER_ERROR_SERVICE_UNAVAIL; 1746 } 1747 } 1748 1749 /** 1750 * Report network connectivity status. This is currently used only 1751 * to alter status bar UI. 1752 * 1753 * @param networkType The type of network you want to report on 1754 * @param percentage The quality of the connection 0 is bad, 100 is good 1755 * 1756 * <p>This method requires the caller to hold the permission 1757 * {@link android.Manifest.permission#STATUS_BAR}. 1758 * {@hide} 1759 */ 1760 public void reportInetCondition(int networkType, int percentage) { 1761 try { 1762 mService.reportInetCondition(networkType, percentage); 1763 } catch (RemoteException e) { 1764 } 1765 } 1766 1767 /** 1768 * Report a problem network to the framework. This provides a hint to the system 1769 * that there might be connectivity problems on this network and may cause 1770 * the framework to re-evaluate network connectivity and/or switch to another 1771 * network. 1772 * 1773 * @param network The {@link Network} the application was attempting to use 1774 * or {@code null} to indicate the current default network. 1775 * @deprecated Use {@link #reportNetworkConnectivity} which allows reporting both 1776 * working and non-working connectivity. 1777 */ 1778 public void reportBadNetwork(Network network) { 1779 try { 1780 // One of these will be ignored because it matches system's current state. 1781 // The other will trigger the necessary reevaluation. 1782 mService.reportNetworkConnectivity(network, true); 1783 mService.reportNetworkConnectivity(network, false); 1784 } catch (RemoteException e) { 1785 } 1786 } 1787 1788 /** 1789 * Report to the framework whether a network has working connectivity. 1790 * This provides a hint to the system that a particular network is providing 1791 * working connectivity or not. In response the framework may re-evaluate 1792 * the network's connectivity and might take further action thereafter. 1793 * 1794 * @param network The {@link Network} the application was attempting to use 1795 * or {@code null} to indicate the current default network. 1796 * @param hasConnectivity {@code true} if the application was able to successfully access the 1797 * Internet using {@code network} or {@code false} if not. 1798 */ 1799 public void reportNetworkConnectivity(Network network, boolean hasConnectivity) { 1800 try { 1801 mService.reportNetworkConnectivity(network, hasConnectivity); 1802 } catch (RemoteException e) { 1803 } 1804 } 1805 1806 /** {@hide} */ 1807 public static final int CAPTIVE_PORTAL_APP_RETURN_DISMISSED = 0; 1808 /** {@hide} */ 1809 public static final int CAPTIVE_PORTAL_APP_RETURN_UNWANTED = 1; 1810 /** {@hide} */ 1811 public static final int CAPTIVE_PORTAL_APP_RETURN_WANTED_AS_IS = 2; 1812 1813 /** 1814 * Called by an app handling the {@link #ACTION_CAPTIVE_PORTAL_SIGN_IN} 1815 * action to indicate to the system that the captive portal has been 1816 * dismissed. In response the framework will re-evaluate the network's 1817 * connectivity and might take further action thereafter. 1818 * 1819 * @param network The {@link Network} object passed via 1820 * {@link #EXTRA_NETWORK} with the 1821 * {@link #ACTION_CAPTIVE_PORTAL_SIGN_IN} action. 1822 * @param actionToken The {@code String} passed via 1823 * {@link #EXTRA_CAPTIVE_PORTAL_TOKEN} with the 1824 * {@code ACTION_CAPTIVE_PORTAL_SIGN_IN} action. 1825 */ 1826 public void reportCaptivePortalDismissed(Network network, String actionToken) { 1827 try { 1828 mService.captivePortalAppResponse(network, CAPTIVE_PORTAL_APP_RETURN_DISMISSED, 1829 actionToken); 1830 } catch (RemoteException e) { 1831 } 1832 } 1833 1834 /** 1835 * Called by an app handling the {@link #ACTION_CAPTIVE_PORTAL_SIGN_IN} 1836 * action to indicate that the user does not want to pursue signing in to 1837 * captive portal and the system should continue to prefer other networks 1838 * without captive portals for use as the default active data network. The 1839 * system will not retest the network for a captive portal so as to avoid 1840 * disturbing the user with further sign in to network notifications. 1841 * 1842 * @param network The {@link Network} object passed via 1843 * {@link #EXTRA_NETWORK} with the 1844 * {@link #ACTION_CAPTIVE_PORTAL_SIGN_IN} action. 1845 * @param actionToken The {@code String} passed via 1846 * {@link #EXTRA_CAPTIVE_PORTAL_TOKEN} with the 1847 * {@code ACTION_CAPTIVE_PORTAL_SIGN_IN} action. 1848 */ 1849 public void ignoreNetworkWithCaptivePortal(Network network, String actionToken) { 1850 try { 1851 mService.captivePortalAppResponse(network, CAPTIVE_PORTAL_APP_RETURN_UNWANTED, 1852 actionToken); 1853 } catch (RemoteException e) { 1854 } 1855 } 1856 1857 /** 1858 * Called by an app handling the {@link #ACTION_CAPTIVE_PORTAL_SIGN_IN} 1859 * action to indicate the user wants to use this network as is, even though 1860 * the captive portal is still in place. The system will treat the network 1861 * as if it did not have a captive portal when selecting the network to use 1862 * as the default active data network. This may result in this network 1863 * becoming the default active data network, which could disrupt network 1864 * connectivity for apps because the captive portal is still in place. 1865 * 1866 * @param network The {@link Network} object passed via 1867 * {@link #EXTRA_NETWORK} with the 1868 * {@link #ACTION_CAPTIVE_PORTAL_SIGN_IN} action. 1869 * @param actionToken The {@code String} passed via 1870 * {@link #EXTRA_CAPTIVE_PORTAL_TOKEN} with the 1871 * {@code ACTION_CAPTIVE_PORTAL_SIGN_IN} action. 1872 * @hide 1873 */ 1874 public void useNetworkWithCaptivePortal(Network network, String actionToken) { 1875 try { 1876 mService.captivePortalAppResponse(network, CAPTIVE_PORTAL_APP_RETURN_WANTED_AS_IS, 1877 actionToken); 1878 } catch (RemoteException e) { 1879 } 1880 } 1881 1882 /** 1883 * Set a network-independent global http proxy. This is not normally what you want 1884 * for typical HTTP proxies - they are general network dependent. However if you're 1885 * doing something unusual like general internal filtering this may be useful. On 1886 * a private network where the proxy is not accessible, you may break HTTP using this. 1887 * 1888 * @param p The a {@link ProxyInfo} object defining the new global 1889 * HTTP proxy. A {@code null} value will clear the global HTTP proxy. 1890 * 1891 * <p>This method requires the caller to hold the permission 1892 * android.Manifest.permission#CONNECTIVITY_INTERNAL. 1893 * @hide 1894 */ 1895 public void setGlobalProxy(ProxyInfo p) { 1896 try { 1897 mService.setGlobalProxy(p); 1898 } catch (RemoteException e) { 1899 } 1900 } 1901 1902 /** 1903 * Retrieve any network-independent global HTTP proxy. 1904 * 1905 * @return {@link ProxyInfo} for the current global HTTP proxy or {@code null} 1906 * if no global HTTP proxy is set. 1907 * 1908 * <p>This method requires the caller to hold the permission 1909 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1910 * @hide 1911 */ 1912 public ProxyInfo getGlobalProxy() { 1913 try { 1914 return mService.getGlobalProxy(); 1915 } catch (RemoteException e) { 1916 return null; 1917 } 1918 } 1919 1920 /** 1921 * Get the current default HTTP proxy settings. If a global proxy is set it will be returned, 1922 * otherwise if this process is bound to a {@link Network} using 1923 * {@link #bindProcessToNetwork} then that {@code Network}'s proxy is returned, otherwise 1924 * the default network's proxy is returned. 1925 * 1926 * @return the {@link ProxyInfo} for the current HTTP proxy, or {@code null} if no 1927 * HTTP proxy is active. 1928 */ 1929 public ProxyInfo getDefaultProxy() { 1930 final Network network = getBoundNetworkForProcess(); 1931 if (network != null) { 1932 final ProxyInfo globalProxy = getGlobalProxy(); 1933 if (globalProxy != null) return globalProxy; 1934 final LinkProperties lp = getLinkProperties(network); 1935 if (lp != null) return lp.getHttpProxy(); 1936 return null; 1937 } 1938 try { 1939 return mService.getDefaultProxy(); 1940 } catch (RemoteException e) { 1941 return null; 1942 } 1943 } 1944 1945 /** 1946 * Returns true if the hardware supports the given network type 1947 * else it returns false. This doesn't indicate we have coverage 1948 * or are authorized onto a network, just whether or not the 1949 * hardware supports it. For example a GSM phone without a SIM 1950 * should still return {@code true} for mobile data, but a wifi only 1951 * tablet would return {@code false}. 1952 * 1953 * @param networkType The network type we'd like to check 1954 * @return {@code true} if supported, else {@code false} 1955 * 1956 * <p>This method requires the caller to hold the permission 1957 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1958 * @hide 1959 */ 1960 public boolean isNetworkSupported(int networkType) { 1961 try { 1962 return mService.isNetworkSupported(networkType); 1963 } catch (RemoteException e) {} 1964 return false; 1965 } 1966 1967 /** 1968 * Returns if the currently active data network is metered. A network is 1969 * classified as metered when the user is sensitive to heavy data usage on 1970 * that connection due to monetary costs, data limitations or 1971 * battery/performance issues. You should check this before doing large 1972 * data transfers, and warn the user or delay the operation until another 1973 * network is available. 1974 * 1975 * @return {@code true} if large transfers should be avoided, otherwise 1976 * {@code false}. 1977 * 1978 * <p>This method requires the caller to hold the permission 1979 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1980 */ 1981 public boolean isActiveNetworkMetered() { 1982 try { 1983 return mService.isActiveNetworkMetered(); 1984 } catch (RemoteException e) { 1985 return false; 1986 } 1987 } 1988 1989 /** 1990 * If the LockdownVpn mechanism is enabled, updates the vpn 1991 * with a reload of its profile. 1992 * 1993 * @return a boolean with {@code} indicating success 1994 * 1995 * <p>This method can only be called by the system UID 1996 * {@hide} 1997 */ 1998 public boolean updateLockdownVpn() { 1999 try { 2000 return mService.updateLockdownVpn(); 2001 } catch (RemoteException e) { 2002 return false; 2003 } 2004 } 2005 2006 /** 2007 * Signal that the captive portal check on the indicated network 2008 * is complete and whether its a captive portal or not. 2009 * 2010 * @param info the {@link NetworkInfo} object for the networkType 2011 * in question. 2012 * @param isCaptivePortal true/false. 2013 * 2014 * <p>This method requires the caller to hold the permission 2015 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL}. 2016 * {@hide} 2017 */ 2018 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 2019 try { 2020 mService.captivePortalCheckCompleted(info, isCaptivePortal); 2021 } catch (RemoteException e) { 2022 } 2023 } 2024 2025 /** 2026 * Check mobile provisioning. 2027 * 2028 * @param suggestedTimeOutMs, timeout in milliseconds 2029 * 2030 * @return time out that will be used, maybe less that suggestedTimeOutMs 2031 * -1 if an error. 2032 * 2033 * {@hide} 2034 */ 2035 public int checkMobileProvisioning(int suggestedTimeOutMs) { 2036 int timeOutMs = -1; 2037 try { 2038 timeOutMs = mService.checkMobileProvisioning(suggestedTimeOutMs); 2039 } catch (RemoteException e) { 2040 } 2041 return timeOutMs; 2042 } 2043 2044 /** 2045 * Get the mobile provisioning url. 2046 * {@hide} 2047 */ 2048 public String getMobileProvisioningUrl() { 2049 try { 2050 return mService.getMobileProvisioningUrl(); 2051 } catch (RemoteException e) { 2052 } 2053 return null; 2054 } 2055 2056 /** 2057 * Get the mobile redirected provisioning url. 2058 * {@hide} 2059 */ 2060 public String getMobileRedirectedProvisioningUrl() { 2061 try { 2062 return mService.getMobileRedirectedProvisioningUrl(); 2063 } catch (RemoteException e) { 2064 } 2065 return null; 2066 } 2067 2068 /** 2069 * Set sign in error notification to visible or in visible 2070 * 2071 * @param visible 2072 * @param networkType 2073 * 2074 * {@hide} 2075 * @deprecated Doesn't properly deal with multiple connected networks of the same type. 2076 */ 2077 public void setProvisioningNotificationVisible(boolean visible, int networkType, 2078 String action) { 2079 try { 2080 mService.setProvisioningNotificationVisible(visible, networkType, action); 2081 } catch (RemoteException e) { 2082 } 2083 } 2084 2085 /** 2086 * Set the value for enabling/disabling airplane mode 2087 * 2088 * @param enable whether to enable airplane mode or not 2089 * 2090 * <p>This method requires the caller to hold the permission 2091 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL}. 2092 * @hide 2093 */ 2094 public void setAirplaneMode(boolean enable) { 2095 try { 2096 mService.setAirplaneMode(enable); 2097 } catch (RemoteException e) { 2098 } 2099 } 2100 2101 /** {@hide} */ 2102 public void registerNetworkFactory(Messenger messenger, String name) { 2103 try { 2104 mService.registerNetworkFactory(messenger, name); 2105 } catch (RemoteException e) { } 2106 } 2107 2108 /** {@hide} */ 2109 public void unregisterNetworkFactory(Messenger messenger) { 2110 try { 2111 mService.unregisterNetworkFactory(messenger); 2112 } catch (RemoteException e) { } 2113 } 2114 2115 /** 2116 * @hide 2117 * Register a NetworkAgent with ConnectivityService. 2118 * @return NetID corresponding to NetworkAgent. 2119 */ 2120 public int registerNetworkAgent(Messenger messenger, NetworkInfo ni, LinkProperties lp, 2121 NetworkCapabilities nc, int score, NetworkMisc misc) { 2122 try { 2123 return mService.registerNetworkAgent(messenger, ni, lp, nc, score, misc); 2124 } catch (RemoteException e) { 2125 return NETID_UNSET; 2126 } 2127 } 2128 2129 /** 2130 * Base class for NetworkRequest callbacks. Used for notifications about network 2131 * changes. Should be extended by applications wanting notifications. 2132 */ 2133 public static class NetworkCallback { 2134 /** @hide */ 2135 public static final int PRECHECK = 1; 2136 /** @hide */ 2137 public static final int AVAILABLE = 2; 2138 /** @hide */ 2139 public static final int LOSING = 3; 2140 /** @hide */ 2141 public static final int LOST = 4; 2142 /** @hide */ 2143 public static final int UNAVAIL = 5; 2144 /** @hide */ 2145 public static final int CAP_CHANGED = 6; 2146 /** @hide */ 2147 public static final int PROP_CHANGED = 7; 2148 /** @hide */ 2149 public static final int CANCELED = 8; 2150 2151 /** 2152 * Called when the framework connects to a new network to evaluate whether it satisfies this 2153 * request. If evaluation succeeds, this callback may be followed by an {@link #onAvailable} 2154 * callback. There is no guarantee that this new network will satisfy any requests, or that 2155 * the network will stay connected for longer than the time necessary to evaluate it. 2156 * <p> 2157 * Most applications <b>should not</b> act on this callback, and should instead use 2158 * {@link #onAvailable}. This callback is intended for use by applications that can assist 2159 * the framework in properly evaluating the network — for example, an application that 2160 * can automatically log in to a captive portal without user intervention. 2161 * 2162 * @param network The {@link Network} of the network that is being evaluated. 2163 */ 2164 public void onPreCheck(Network network) {} 2165 2166 /** 2167 * Called when the framework connects and has declared a new network ready for use. 2168 * This callback may be called more than once if the {@link Network} that is 2169 * satisfying the request changes. 2170 * 2171 * @param network The {@link Network} of the satisfying network. 2172 */ 2173 public void onAvailable(Network network) {} 2174 2175 /** 2176 * Called when the network is about to be disconnected. Often paired with an 2177 * {@link NetworkCallback#onAvailable} call with the new replacement network 2178 * for graceful handover. This may not be called if we have a hard loss 2179 * (loss without warning). This may be followed by either a 2180 * {@link NetworkCallback#onLost} call or a 2181 * {@link NetworkCallback#onAvailable} call for this network depending 2182 * on whether we lose or regain it. 2183 * 2184 * @param network The {@link Network} that is about to be disconnected. 2185 * @param maxMsToLive The time in ms the framework will attempt to keep the 2186 * network connected. Note that the network may suffer a 2187 * hard loss at any time. 2188 */ 2189 public void onLosing(Network network, int maxMsToLive) {} 2190 2191 /** 2192 * Called when the framework has a hard loss of the network or when the 2193 * graceful failure ends. 2194 * 2195 * @param network The {@link Network} lost. 2196 */ 2197 public void onLost(Network network) {} 2198 2199 /** 2200 * Called if no network is found in the given timeout time. If no timeout is given, 2201 * this will not be called. 2202 * @hide 2203 */ 2204 public void onUnavailable() {} 2205 2206 /** 2207 * Called when the network the framework connected to for this request 2208 * changes capabilities but still satisfies the stated need. 2209 * 2210 * @param network The {@link Network} whose capabilities have changed. 2211 * @param networkCapabilities The new {@link android.net.NetworkCapabilities} for this network. 2212 */ 2213 public void onCapabilitiesChanged(Network network, 2214 NetworkCapabilities networkCapabilities) {} 2215 2216 /** 2217 * Called when the network the framework connected to for this request 2218 * changes {@link LinkProperties}. 2219 * 2220 * @param network The {@link Network} whose link properties have changed. 2221 * @param linkProperties The new {@link LinkProperties} for this network. 2222 */ 2223 public void onLinkPropertiesChanged(Network network, LinkProperties linkProperties) {} 2224 2225 private NetworkRequest networkRequest; 2226 } 2227 2228 private static final int BASE = Protocol.BASE_CONNECTIVITY_MANAGER; 2229 /** @hide obj = pair(NetworkRequest, Network) */ 2230 public static final int CALLBACK_PRECHECK = BASE + 1; 2231 /** @hide obj = pair(NetworkRequest, Network) */ 2232 public static final int CALLBACK_AVAILABLE = BASE + 2; 2233 /** @hide obj = pair(NetworkRequest, Network), arg1 = ttl */ 2234 public static final int CALLBACK_LOSING = BASE + 3; 2235 /** @hide obj = pair(NetworkRequest, Network) */ 2236 public static final int CALLBACK_LOST = BASE + 4; 2237 /** @hide obj = NetworkRequest */ 2238 public static final int CALLBACK_UNAVAIL = BASE + 5; 2239 /** @hide obj = pair(NetworkRequest, Network) */ 2240 public static final int CALLBACK_CAP_CHANGED = BASE + 6; 2241 /** @hide obj = pair(NetworkRequest, Network) */ 2242 public static final int CALLBACK_IP_CHANGED = BASE + 7; 2243 /** @hide obj = NetworkRequest */ 2244 public static final int CALLBACK_RELEASED = BASE + 8; 2245 /** @hide */ 2246 public static final int CALLBACK_EXIT = BASE + 9; 2247 /** @hide obj = NetworkCapabilities, arg1 = seq number */ 2248 private static final int EXPIRE_LEGACY_REQUEST = BASE + 10; 2249 2250 private class CallbackHandler extends Handler { 2251 private final HashMap<NetworkRequest, NetworkCallback>mCallbackMap; 2252 private final AtomicInteger mRefCount; 2253 private static final String TAG = "ConnectivityManager.CallbackHandler"; 2254 private final ConnectivityManager mCm; 2255 2256 CallbackHandler(Looper looper, HashMap<NetworkRequest, NetworkCallback>callbackMap, 2257 AtomicInteger refCount, ConnectivityManager cm) { 2258 super(looper); 2259 mCallbackMap = callbackMap; 2260 mRefCount = refCount; 2261 mCm = cm; 2262 } 2263 2264 @Override 2265 public void handleMessage(Message message) { 2266 Log.d(TAG, "CM callback handler got msg " + message.what); 2267 NetworkRequest request = (NetworkRequest) getObject(message, NetworkRequest.class); 2268 Network network = (Network) getObject(message, Network.class); 2269 switch (message.what) { 2270 case CALLBACK_PRECHECK: { 2271 NetworkCallback callback = getCallback(request, "PRECHECK"); 2272 if (callback != null) { 2273 callback.onPreCheck(network); 2274 } 2275 break; 2276 } 2277 case CALLBACK_AVAILABLE: { 2278 NetworkCallback callback = getCallback(request, "AVAILABLE"); 2279 if (callback != null) { 2280 callback.onAvailable(network); 2281 } 2282 break; 2283 } 2284 case CALLBACK_LOSING: { 2285 NetworkCallback callback = getCallback(request, "LOSING"); 2286 if (callback != null) { 2287 callback.onLosing(network, message.arg1); 2288 } 2289 break; 2290 } 2291 case CALLBACK_LOST: { 2292 NetworkCallback callback = getCallback(request, "LOST"); 2293 if (callback != null) { 2294 callback.onLost(network); 2295 } 2296 break; 2297 } 2298 case CALLBACK_UNAVAIL: { 2299 NetworkCallback callback = getCallback(request, "UNAVAIL"); 2300 if (callback != null) { 2301 callback.onUnavailable(); 2302 } 2303 break; 2304 } 2305 case CALLBACK_CAP_CHANGED: { 2306 NetworkCallback callback = getCallback(request, "CAP_CHANGED"); 2307 if (callback != null) { 2308 NetworkCapabilities cap = (NetworkCapabilities)getObject(message, 2309 NetworkCapabilities.class); 2310 2311 callback.onCapabilitiesChanged(network, cap); 2312 } 2313 break; 2314 } 2315 case CALLBACK_IP_CHANGED: { 2316 NetworkCallback callback = getCallback(request, "IP_CHANGED"); 2317 if (callback != null) { 2318 LinkProperties lp = (LinkProperties)getObject(message, 2319 LinkProperties.class); 2320 2321 callback.onLinkPropertiesChanged(network, lp); 2322 } 2323 break; 2324 } 2325 case CALLBACK_RELEASED: { 2326 NetworkCallback callback = null; 2327 synchronized(mCallbackMap) { 2328 callback = mCallbackMap.remove(request); 2329 } 2330 if (callback != null) { 2331 synchronized(mRefCount) { 2332 if (mRefCount.decrementAndGet() == 0) { 2333 getLooper().quit(); 2334 } 2335 } 2336 } else { 2337 Log.e(TAG, "callback not found for RELEASED message"); 2338 } 2339 break; 2340 } 2341 case CALLBACK_EXIT: { 2342 Log.d(TAG, "Listener quitting"); 2343 getLooper().quit(); 2344 break; 2345 } 2346 case EXPIRE_LEGACY_REQUEST: { 2347 expireRequest((NetworkCapabilities)message.obj, message.arg1); 2348 break; 2349 } 2350 } 2351 } 2352 2353 private Object getObject(Message msg, Class c) { 2354 return msg.getData().getParcelable(c.getSimpleName()); 2355 } 2356 2357 private NetworkCallback getCallback(NetworkRequest req, String name) { 2358 NetworkCallback callback; 2359 synchronized(mCallbackMap) { 2360 callback = mCallbackMap.get(req); 2361 } 2362 if (callback == null) { 2363 Log.e(TAG, "callback not found for " + name + " message"); 2364 } 2365 return callback; 2366 } 2367 } 2368 2369 private void incCallbackHandlerRefCount() { 2370 synchronized(sCallbackRefCount) { 2371 if (sCallbackRefCount.incrementAndGet() == 1) { 2372 // TODO - switch this over to a ManagerThread or expire it when done 2373 HandlerThread callbackThread = new HandlerThread("ConnectivityManager"); 2374 callbackThread.start(); 2375 sCallbackHandler = new CallbackHandler(callbackThread.getLooper(), 2376 sNetworkCallback, sCallbackRefCount, this); 2377 } 2378 } 2379 } 2380 2381 private void decCallbackHandlerRefCount() { 2382 synchronized(sCallbackRefCount) { 2383 if (sCallbackRefCount.decrementAndGet() == 0) { 2384 sCallbackHandler.obtainMessage(CALLBACK_EXIT).sendToTarget(); 2385 sCallbackHandler = null; 2386 } 2387 } 2388 } 2389 2390 static final HashMap<NetworkRequest, NetworkCallback> sNetworkCallback = 2391 new HashMap<NetworkRequest, NetworkCallback>(); 2392 static final AtomicInteger sCallbackRefCount = new AtomicInteger(0); 2393 static CallbackHandler sCallbackHandler = null; 2394 2395 private final static int LISTEN = 1; 2396 private final static int REQUEST = 2; 2397 2398 private NetworkRequest sendRequestForNetwork(NetworkCapabilities need, 2399 NetworkCallback networkCallback, int timeoutSec, int action, 2400 int legacyType) { 2401 if (networkCallback == null) { 2402 throw new IllegalArgumentException("null NetworkCallback"); 2403 } 2404 if (need == null) throw new IllegalArgumentException("null NetworkCapabilities"); 2405 try { 2406 incCallbackHandlerRefCount(); 2407 synchronized(sNetworkCallback) { 2408 if (action == LISTEN) { 2409 networkCallback.networkRequest = mService.listenForNetwork(need, 2410 new Messenger(sCallbackHandler), new Binder()); 2411 } else { 2412 networkCallback.networkRequest = mService.requestNetwork(need, 2413 new Messenger(sCallbackHandler), timeoutSec, new Binder(), legacyType); 2414 } 2415 if (networkCallback.networkRequest != null) { 2416 sNetworkCallback.put(networkCallback.networkRequest, networkCallback); 2417 } 2418 } 2419 } catch (RemoteException e) {} 2420 if (networkCallback.networkRequest == null) decCallbackHandlerRefCount(); 2421 return networkCallback.networkRequest; 2422 } 2423 2424 /** 2425 * Request a network to satisfy a set of {@link android.net.NetworkCapabilities}. 2426 * 2427 * This {@link NetworkRequest} will live until released via 2428 * {@link #unregisterNetworkCallback} or the calling application exits. 2429 * Status of the request can be followed by listening to the various 2430 * callbacks described in {@link NetworkCallback}. The {@link Network} 2431 * can be used to direct traffic to the network. 2432 * 2433 * @param request {@link NetworkRequest} describing this request. 2434 * @param networkCallback The {@link NetworkCallback} to be utilized for this 2435 * request. Note the callback must not be shared - they 2436 * uniquely specify this request. 2437 */ 2438 public void requestNetwork(NetworkRequest request, NetworkCallback networkCallback) { 2439 sendRequestForNetwork(request.networkCapabilities, networkCallback, 0, 2440 REQUEST, inferLegacyTypeForNetworkCapabilities(request.networkCapabilities)); 2441 } 2442 2443 /** 2444 * Request a network to satisfy a set of {@link android.net.NetworkCapabilities}, limited 2445 * by a timeout. 2446 * 2447 * This function behaves identically to the non-timedout version, but if a suitable 2448 * network is not found within the given time (in milliseconds) the 2449 * {@link NetworkCallback#unavailable} callback is called. The request must 2450 * still be released normally by calling {@link releaseNetworkRequest}. 2451 * @param request {@link NetworkRequest} describing this request. 2452 * @param networkCallback The callbacks to be utilized for this request. Note 2453 * the callbacks must not be shared - they uniquely specify 2454 * this request. 2455 * @param timeoutMs The time in milliseconds to attempt looking for a suitable network 2456 * before {@link NetworkCallback#unavailable} is called. 2457 * @hide 2458 */ 2459 public void requestNetwork(NetworkRequest request, NetworkCallback networkCallback, 2460 int timeoutMs) { 2461 sendRequestForNetwork(request.networkCapabilities, networkCallback, timeoutMs, 2462 REQUEST, inferLegacyTypeForNetworkCapabilities(request.networkCapabilities)); 2463 } 2464 2465 /** 2466 * The maximum number of milliseconds the framework will look for a suitable network 2467 * during a timeout-equiped call to {@link requestNetwork}. 2468 * {@hide} 2469 */ 2470 public final static int MAX_NETWORK_REQUEST_TIMEOUT_MS = 100 * 60 * 1000; 2471 2472 /** 2473 * The lookup key for a {@link Network} object included with the intent after 2474 * successfully finding a network for the applications request. Retrieve it with 2475 * {@link android.content.Intent#getParcelableExtra(String)}. 2476 * <p> 2477 * Note that if you intend to invoke {@link Network#openConnection(java.net.URL)} 2478 * then you must get a ConnectivityManager instance before doing so. 2479 */ 2480 public static final String EXTRA_NETWORK = "android.net.extra.NETWORK"; 2481 2482 /** 2483 * The lookup key for a {@link NetworkRequest} object included with the intent after 2484 * successfully finding a network for the applications request. Retrieve it with 2485 * {@link android.content.Intent#getParcelableExtra(String)}. 2486 */ 2487 public static final String EXTRA_NETWORK_REQUEST = "android.net.extra.NETWORK_REQUEST"; 2488 2489 2490 /** 2491 * Request a network to satisfy a set of {@link android.net.NetworkCapabilities}. 2492 * 2493 * This function behaves identically to the version that takes a NetworkCallback, but instead 2494 * of {@link NetworkCallback} a {@link PendingIntent} is used. This means 2495 * the request may outlive the calling application and get called back when a suitable 2496 * network is found. 2497 * <p> 2498 * The operation is an Intent broadcast that goes to a broadcast receiver that 2499 * you registered with {@link Context#registerReceiver} or through the 2500 * <receiver> tag in an AndroidManifest.xml file 2501 * <p> 2502 * The operation Intent is delivered with two extras, a {@link Network} typed 2503 * extra called {@link #EXTRA_NETWORK} and a {@link NetworkRequest} 2504 * typed extra called {@link #EXTRA_NETWORK_REQUEST} containing 2505 * the original requests parameters. It is important to create a new, 2506 * {@link NetworkCallback} based request before completing the processing of the 2507 * Intent to reserve the network or it will be released shortly after the Intent 2508 * is processed. 2509 * <p> 2510 * If there is already an request for this Intent registered (with the equality of 2511 * two Intents defined by {@link Intent#filterEquals}), then it will be removed and 2512 * replaced by this one, effectively releasing the previous {@link NetworkRequest}. 2513 * <p> 2514 * The request may be released normally by calling 2515 * {@link #releaseNetworkRequest(android.app.PendingIntent)}. 2516 * 2517 * @param request {@link NetworkRequest} describing this request. 2518 * @param operation Action to perform when the network is available (corresponds 2519 * to the {@link NetworkCallback#onAvailable} call. Typically 2520 * comes from {@link PendingIntent#getBroadcast}. Cannot be null. 2521 */ 2522 public void requestNetwork(NetworkRequest request, PendingIntent operation) { 2523 checkPendingIntent(operation); 2524 try { 2525 mService.pendingRequestForNetwork(request.networkCapabilities, operation); 2526 } catch (RemoteException e) {} 2527 } 2528 2529 /** 2530 * Removes a request made via {@link #requestNetwork(NetworkRequest, android.app.PendingIntent)} 2531 * <p> 2532 * This method has the same behavior as {@link #unregisterNetworkCallback} with respect to 2533 * releasing network resources and disconnecting. 2534 * 2535 * @param operation A PendingIntent equal (as defined by {@link Intent#filterEquals}) to the 2536 * PendingIntent passed to 2537 * {@link #requestNetwork(NetworkRequest, android.app.PendingIntent)} with the 2538 * corresponding NetworkRequest you'd like to remove. Cannot be null. 2539 */ 2540 public void releaseNetworkRequest(PendingIntent operation) { 2541 checkPendingIntent(operation); 2542 try { 2543 mService.releasePendingNetworkRequest(operation); 2544 } catch (RemoteException e) {} 2545 } 2546 2547 private void checkPendingIntent(PendingIntent intent) { 2548 if (intent == null) { 2549 throw new IllegalArgumentException("PendingIntent cannot be null."); 2550 } 2551 } 2552 2553 /** 2554 * Registers to receive notifications about all networks which satisfy the given 2555 * {@link NetworkRequest}. The callbacks will continue to be called until 2556 * either the application exits or {@link #unregisterNetworkCallback} is called 2557 * 2558 * @param request {@link NetworkRequest} describing this request. 2559 * @param networkCallback The {@link NetworkCallback} that the system will call as suitable 2560 * networks change state. 2561 */ 2562 public void registerNetworkCallback(NetworkRequest request, NetworkCallback networkCallback) { 2563 sendRequestForNetwork(request.networkCapabilities, networkCallback, 0, LISTEN, TYPE_NONE); 2564 } 2565 2566 /** 2567 * Requests bandwidth update for a given {@link Network} and returns whether the update request 2568 * is accepted by ConnectivityService. Once accepted, ConnectivityService will poll underlying 2569 * network connection for updated bandwidth information. The caller will be notified via 2570 * {@link ConnectivityManager.NetworkCallback} if there is an update. Notice that this 2571 * method assumes that the caller has previously called {@link #registerNetworkCallback} to 2572 * listen for network changes. 2573 * 2574 * @param network{@link Network} specifying which network you're interested. 2575 * @return {@code true} on success, {@code false} if the {@link Network} is no longer valid. 2576 * 2577 * @hide 2578 */ 2579 public boolean requestBandwidthUpdate(Network network) { 2580 try { 2581 return mService.requestBandwidthUpdate(network); 2582 } catch (RemoteException e) { 2583 return false; 2584 } 2585 } 2586 2587 /** 2588 * Unregisters callbacks about and possibly releases networks originating from 2589 * {@link #requestNetwork(NetworkRequest, NetworkCallback)} and {@link #registerNetworkCallback} 2590 * calls. If the given {@code NetworkCallback} had previously been used with 2591 * {@code #requestNetwork}, any networks that had been connected to only to satisfy that request 2592 * will be disconnected. 2593 * 2594 * @param networkCallback The {@link NetworkCallback} used when making the request. 2595 */ 2596 public void unregisterNetworkCallback(NetworkCallback networkCallback) { 2597 if (networkCallback == null || networkCallback.networkRequest == null || 2598 networkCallback.networkRequest.requestId == REQUEST_ID_UNSET) { 2599 throw new IllegalArgumentException("Invalid NetworkCallback"); 2600 } 2601 try { 2602 mService.releaseNetworkRequest(networkCallback.networkRequest); 2603 } catch (RemoteException e) {} 2604 } 2605 2606 /** 2607 * Informs the system whether it should switch to {@code network} regardless of whether it is 2608 * validated or not. If {@code accept} is true, and the network was explicitly selected by the 2609 * user (e.g., by selecting a Wi-Fi network in the Settings app), then the network will become 2610 * the system default network regardless of any other network that's currently connected. If 2611 * {@code always} is true, then the choice is remembered, so that the next time the user 2612 * connects to this network, the system will switch to it. 2613 * 2614 * <p>This method requires the caller to hold the permission 2615 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL} 2616 * 2617 * @param network The network to accept. 2618 * @param accept Whether to accept the network even if unvalidated. 2619 * @param always Whether to remember this choice in the future. 2620 * 2621 * @hide 2622 */ 2623 public void setAcceptUnvalidated(Network network, boolean accept, boolean always) { 2624 try { 2625 mService.setAcceptUnvalidated(network, accept, always); 2626 } catch (RemoteException e) {} 2627 } 2628 2629 /** 2630 * Resets all connectivity manager settings back to factory defaults. 2631 * @hide 2632 */ 2633 public void factoryReset() { 2634 try { 2635 mService.factoryReset(); 2636 } catch (RemoteException e) { 2637 } 2638 } 2639 2640 /** 2641 * Binds the current process to {@code network}. All Sockets created in the future 2642 * (and not explicitly bound via a bound SocketFactory from 2643 * {@link Network#getSocketFactory() Network.getSocketFactory()}) will be bound to 2644 * {@code network}. All host name resolutions will be limited to {@code network} as well. 2645 * Note that if {@code network} ever disconnects, all Sockets created in this way will cease to 2646 * work and all host name resolutions will fail. This is by design so an application doesn't 2647 * accidentally use Sockets it thinks are still bound to a particular {@link Network}. 2648 * To clear binding pass {@code null} for {@code network}. Using individually bound 2649 * Sockets created by Network.getSocketFactory().createSocket() and 2650 * performing network-specific host name resolutions via 2651 * {@link Network#getAllByName Network.getAllByName} is preferred to calling 2652 * {@code bindProcessToNetwork}. 2653 * 2654 * @param network The {@link Network} to bind the current process to, or {@code null} to clear 2655 * the current binding. 2656 * @return {@code true} on success, {@code false} if the {@link Network} is no longer valid. 2657 */ 2658 public boolean bindProcessToNetwork(Network network) { 2659 // Forcing callers to call thru non-static function ensures ConnectivityManager 2660 // instantiated. 2661 return setProcessDefaultNetwork(network); 2662 } 2663 2664 /** 2665 * Binds the current process to {@code network}. All Sockets created in the future 2666 * (and not explicitly bound via a bound SocketFactory from 2667 * {@link Network#getSocketFactory() Network.getSocketFactory()}) will be bound to 2668 * {@code network}. All host name resolutions will be limited to {@code network} as well. 2669 * Note that if {@code network} ever disconnects, all Sockets created in this way will cease to 2670 * work and all host name resolutions will fail. This is by design so an application doesn't 2671 * accidentally use Sockets it thinks are still bound to a particular {@link Network}. 2672 * To clear binding pass {@code null} for {@code network}. Using individually bound 2673 * Sockets created by Network.getSocketFactory().createSocket() and 2674 * performing network-specific host name resolutions via 2675 * {@link Network#getAllByName Network.getAllByName} is preferred to calling 2676 * {@code setProcessDefaultNetwork}. 2677 * 2678 * @param network The {@link Network} to bind the current process to, or {@code null} to clear 2679 * the current binding. 2680 * @return {@code true} on success, {@code false} if the {@link Network} is no longer valid. 2681 * @deprecated This function can throw {@link IllegalStateException}. Use 2682 * {@link #bindProcessToNetwork} instead. {@code bindProcessToNetwork} 2683 * is a direct replacement. 2684 */ 2685 public static boolean setProcessDefaultNetwork(Network network) { 2686 int netId = (network == null) ? NETID_UNSET : network.netId; 2687 if (netId == NetworkUtils.getBoundNetworkForProcess()) { 2688 return true; 2689 } 2690 if (NetworkUtils.bindProcessToNetwork(netId)) { 2691 // Set HTTP proxy system properties to match network. 2692 // TODO: Deprecate this static method and replace it with a non-static version. 2693 try { 2694 Proxy.setHttpProxySystemProperty(getInstance().getDefaultProxy()); 2695 } catch (SecurityException e) { 2696 // The process doesn't have ACCESS_NETWORK_STATE, so we can't fetch the proxy. 2697 Log.e(TAG, "Can't set proxy properties", e); 2698 } 2699 // Must flush DNS cache as new network may have different DNS resolutions. 2700 InetAddress.clearDnsCache(); 2701 // Must flush socket pool as idle sockets will be bound to previous network and may 2702 // cause subsequent fetches to be performed on old network. 2703 NetworkEventDispatcher.getInstance().onNetworkConfigurationChanged(); 2704 return true; 2705 } else { 2706 return false; 2707 } 2708 } 2709 2710 /** 2711 * Returns the {@link Network} currently bound to this process via 2712 * {@link #bindProcessToNetwork}, or {@code null} if no {@link Network} is explicitly bound. 2713 * 2714 * @return {@code Network} to which this process is bound, or {@code null}. 2715 */ 2716 public Network getBoundNetworkForProcess() { 2717 // Forcing callers to call thru non-static function ensures ConnectivityManager 2718 // instantiated. 2719 return getProcessDefaultNetwork(); 2720 } 2721 2722 /** 2723 * Returns the {@link Network} currently bound to this process via 2724 * {@link #bindProcessToNetwork}, or {@code null} if no {@link Network} is explicitly bound. 2725 * 2726 * @return {@code Network} to which this process is bound, or {@code null}. 2727 * @deprecated Using this function can lead to other functions throwing 2728 * {@link IllegalStateException}. Use {@link #getBoundNetworkForProcess} instead. 2729 * {@code getBoundNetworkForProcess} is a direct replacement. 2730 */ 2731 public static Network getProcessDefaultNetwork() { 2732 int netId = NetworkUtils.getBoundNetworkForProcess(); 2733 if (netId == NETID_UNSET) return null; 2734 return new Network(netId); 2735 } 2736 2737 /** 2738 * Binds host resolutions performed by this process to {@code network}. 2739 * {@link #bindProcessToNetwork} takes precedence over this setting. 2740 * 2741 * @param network The {@link Network} to bind host resolutions from the current process to, or 2742 * {@code null} to clear the current binding. 2743 * @return {@code true} on success, {@code false} if the {@link Network} is no longer valid. 2744 * @hide 2745 * @deprecated This is strictly for legacy usage to support {@link #startUsingNetworkFeature}. 2746 */ 2747 public static boolean setProcessDefaultNetworkForHostResolution(Network network) { 2748 return NetworkUtils.bindProcessToNetworkForHostResolution( 2749 network == null ? NETID_UNSET : network.netId); 2750 } 2751} 2752