ConnectivityManager.java revision 73b6cbae0cf6ca71453c526895a735130e72c9c0
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.TelephonyManager; 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 51/** 52 * Class that answers queries about the state of network connectivity. It also 53 * notifies applications when network connectivity changes. Get an instance 54 * of this class by calling 55 * {@link android.content.Context#getSystemService(String) Context.getSystemService(Context.CONNECTIVITY_SERVICE)}. 56 * <p> 57 * The primary responsibilities of this class are to: 58 * <ol> 59 * <li>Monitor network connections (Wi-Fi, GPRS, UMTS, etc.)</li> 60 * <li>Send broadcast intents when network connectivity changes</li> 61 * <li>Attempt to "fail over" to another network when connectivity to a network 62 * is lost</li> 63 * <li>Provide an API that allows applications to query the coarse-grained or fine-grained 64 * state of the available networks</li> 65 * <li>Provide an API that allows applications to request and select networks for their data 66 * traffic</li> 67 * </ol> 68 */ 69public class ConnectivityManager { 70 private static final String TAG = "ConnectivityManager"; 71 private static final boolean LEGACY_DBG = true; // STOPSHIP 72 73 /** 74 * A change in network connectivity has occurred. A default connection has either 75 * been established or lost. The NetworkInfo for the affected network is 76 * sent as an extra; it should be consulted to see what kind of 77 * connectivity event occurred. 78 * <p/> 79 * If this is a connection that was the result of failing over from a 80 * disconnected network, then the FAILOVER_CONNECTION boolean extra is 81 * set to true. 82 * <p/> 83 * For a loss of connectivity, if the connectivity manager is attempting 84 * to connect (or has already connected) to another network, the 85 * NetworkInfo for the new network is also passed as an extra. This lets 86 * any receivers of the broadcast know that they should not necessarily 87 * tell the user that no data traffic will be possible. Instead, the 88 * receiver should expect another broadcast soon, indicating either that 89 * the failover attempt succeeded (and so there is still overall data 90 * connectivity), or that the failover attempt failed, meaning that all 91 * connectivity has been lost. 92 * <p/> 93 * For a disconnect event, the boolean extra EXTRA_NO_CONNECTIVITY 94 * is set to {@code true} if there are no connected networks at all. 95 */ 96 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 97 public static final String CONNECTIVITY_ACTION = "android.net.conn.CONNECTIVITY_CHANGE"; 98 99 /** 100 * Identical to {@link #CONNECTIVITY_ACTION} broadcast, but sent without any 101 * applicable {@link Settings.Global#CONNECTIVITY_CHANGE_DELAY}. 102 * 103 * @hide 104 */ 105 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 106 public static final String CONNECTIVITY_ACTION_IMMEDIATE = 107 "android.net.conn.CONNECTIVITY_CHANGE_IMMEDIATE"; 108 109 /** 110 * The lookup key for a {@link NetworkInfo} object. Retrieve with 111 * {@link android.content.Intent#getParcelableExtra(String)}. 112 * 113 * @deprecated Since {@link NetworkInfo} can vary based on UID, applications 114 * should always obtain network information through 115 * {@link #getActiveNetworkInfo()} or 116 * {@link #getAllNetworkInfo()}. 117 * @see #EXTRA_NETWORK_TYPE 118 */ 119 @Deprecated 120 public static final String EXTRA_NETWORK_INFO = "networkInfo"; 121 122 /** 123 * Network type which triggered a {@link #CONNECTIVITY_ACTION} broadcast. 124 * Can be used with {@link #getNetworkInfo(int)} to get {@link NetworkInfo} 125 * state based on the calling application. 126 * 127 * @see android.content.Intent#getIntExtra(String, int) 128 */ 129 public static final String EXTRA_NETWORK_TYPE = "networkType"; 130 131 /** 132 * The lookup key for a boolean that indicates whether a connect event 133 * is for a network to which the connectivity manager was failing over 134 * following a disconnect on another network. 135 * Retrieve it with {@link android.content.Intent#getBooleanExtra(String,boolean)}. 136 */ 137 public static final String EXTRA_IS_FAILOVER = "isFailover"; 138 /** 139 * The lookup key for a {@link NetworkInfo} object. This is supplied when 140 * there is another network that it may be possible to connect to. Retrieve with 141 * {@link android.content.Intent#getParcelableExtra(String)}. 142 */ 143 public static final String EXTRA_OTHER_NETWORK_INFO = "otherNetwork"; 144 /** 145 * The lookup key for a boolean that indicates whether there is a 146 * complete lack of connectivity, i.e., no network is available. 147 * Retrieve it with {@link android.content.Intent#getBooleanExtra(String,boolean)}. 148 */ 149 public static final String EXTRA_NO_CONNECTIVITY = "noConnectivity"; 150 /** 151 * The lookup key for a string that indicates why an attempt to connect 152 * to a network failed. The string has no particular structure. It is 153 * intended to be used in notifications presented to users. Retrieve 154 * it with {@link android.content.Intent#getStringExtra(String)}. 155 */ 156 public static final String EXTRA_REASON = "reason"; 157 /** 158 * The lookup key for a string that provides optionally supplied 159 * extra information about the network state. The information 160 * may be passed up from the lower networking layers, and its 161 * meaning may be specific to a particular network type. Retrieve 162 * it with {@link android.content.Intent#getStringExtra(String)}. 163 */ 164 public static final String EXTRA_EXTRA_INFO = "extraInfo"; 165 /** 166 * The lookup key for an int that provides information about 167 * our connection to the internet at large. 0 indicates no connection, 168 * 100 indicates a great connection. Retrieve it with 169 * {@link android.content.Intent#getIntExtra(String, int)}. 170 * {@hide} 171 */ 172 public static final String EXTRA_INET_CONDITION = "inetCondition"; 173 174 /** 175 * Broadcast action to indicate the change of data activity status 176 * (idle or active) on a network in a recent period. 177 * The network becomes active when data transmission is started, or 178 * idle if there is no data transmission for a period of time. 179 * {@hide} 180 */ 181 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 182 public static final String ACTION_DATA_ACTIVITY_CHANGE = "android.net.conn.DATA_ACTIVITY_CHANGE"; 183 /** 184 * The lookup key for an enum that indicates the network device type on which this data activity 185 * change happens. 186 * {@hide} 187 */ 188 public static final String EXTRA_DEVICE_TYPE = "deviceType"; 189 /** 190 * The lookup key for a boolean that indicates the device is active or not. {@code true} means 191 * it is actively sending or receiving data and {@code false} means it is idle. 192 * {@hide} 193 */ 194 public static final String EXTRA_IS_ACTIVE = "isActive"; 195 /** 196 * The lookup key for a long that contains the timestamp (nanos) of the radio state change. 197 * {@hide} 198 */ 199 public static final String EXTRA_REALTIME_NS = "tsNanos"; 200 201 /** 202 * Broadcast Action: The setting for background data usage has changed 203 * values. Use {@link #getBackgroundDataSetting()} to get the current value. 204 * <p> 205 * If an application uses the network in the background, it should listen 206 * for this broadcast and stop using the background data if the value is 207 * {@code false}. 208 * <p> 209 * 210 * @deprecated As of {@link VERSION_CODES#ICE_CREAM_SANDWICH}, availability 211 * of background data depends on several combined factors, and 212 * this broadcast is no longer sent. Instead, when background 213 * data is unavailable, {@link #getActiveNetworkInfo()} will now 214 * appear disconnected. During first boot after a platform 215 * upgrade, this broadcast will be sent once if 216 * {@link #getBackgroundDataSetting()} was {@code false} before 217 * the upgrade. 218 */ 219 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 220 @Deprecated 221 public static final String ACTION_BACKGROUND_DATA_SETTING_CHANGED = 222 "android.net.conn.BACKGROUND_DATA_SETTING_CHANGED"; 223 224 /** 225 * Broadcast Action: The network connection may not be good 226 * uses {@code ConnectivityManager.EXTRA_INET_CONDITION} and 227 * {@code ConnectivityManager.EXTRA_NETWORK_INFO} to specify 228 * the network and it's condition. 229 * @hide 230 */ 231 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 232 public static final String INET_CONDITION_ACTION = 233 "android.net.conn.INET_CONDITION_ACTION"; 234 235 /** 236 * Broadcast Action: A tetherable connection has come or gone. 237 * Uses {@code ConnectivityManager.EXTRA_AVAILABLE_TETHER}, 238 * {@code ConnectivityManager.EXTRA_ACTIVE_TETHER} and 239 * {@code ConnectivityManager.EXTRA_ERRORED_TETHER} to indicate 240 * the current state of tethering. Each include a list of 241 * interface names in that state (may be empty). 242 * @hide 243 */ 244 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 245 public static final String ACTION_TETHER_STATE_CHANGED = 246 "android.net.conn.TETHER_STATE_CHANGED"; 247 248 /** 249 * @hide 250 * gives a String[] listing all the interfaces configured for 251 * tethering and currently available for tethering. 252 */ 253 public static final String EXTRA_AVAILABLE_TETHER = "availableArray"; 254 255 /** 256 * @hide 257 * gives a String[] listing all the interfaces currently tethered 258 * (ie, has dhcp support and packets potentially forwarded/NATed) 259 */ 260 public static final String EXTRA_ACTIVE_TETHER = "activeArray"; 261 262 /** 263 * @hide 264 * gives a String[] listing all the interfaces we tried to tether and 265 * failed. Use {@link #getLastTetherError} to find the error code 266 * for any interfaces listed here. 267 */ 268 public static final String EXTRA_ERRORED_TETHER = "erroredArray"; 269 270 /** 271 * Broadcast Action: The captive portal tracker has finished its test. 272 * Sent only while running Setup Wizard, in lieu of showing a user 273 * notification. 274 * @hide 275 */ 276 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 277 public static final String ACTION_CAPTIVE_PORTAL_TEST_COMPLETED = 278 "android.net.conn.CAPTIVE_PORTAL_TEST_COMPLETED"; 279 /** 280 * The lookup key for a boolean that indicates whether a captive portal was detected. 281 * Retrieve it with {@link android.content.Intent#getBooleanExtra(String,boolean)}. 282 * @hide 283 */ 284 public static final String EXTRA_IS_CAPTIVE_PORTAL = "captivePortal"; 285 286 /** 287 * Broadcast Action: A connection has been established to a new network 288 * but a captive portal has been detected preventing internet connectivity. 289 * This broadcast is sent out prior to providing the user with a 290 * notification allowing them to sign into the network, as such it should 291 * only be used by apps that can automatically and silently (without user 292 * interaction) log into specific captive portals. It should not be used 293 * by apps that prompt the user to sign in, as the user has not yet 294 * indicated they want to proceed with signing in. 295 * The new network is not the default network so it can only be accessed via 296 * the {@link Network} extra {@link #EXTRA_NETWORK}. 297 * This is an ordered broadcast and so it is perfectly acceptable for 298 * multiple receivers to in turn consider whether they are best suited to 299 * address the captive portal. 300 * A receiver should abort the broadcast if they are sure they are the 301 * appropriate handler of the captive portal. If the broadcast is aborted, 302 * the result code must be set to one of the following: 303 * <ul> 304 * <li>{@link #CAPTIVE_PORTAL_SIGNED_IN} The receiver has signed into the 305 * captive portal. After being verified to provide internet 306 * connectivity, this network will be made the default (assuming 307 * it is preferred over all other active networks). 308 * </li> 309 * <li>{@link #CAPTIVE_PORTAL_DISCONNECT} The receiver is familiar with 310 * this captive portal and knows sign-in is impossible or the user 311 * has indicated they do not want to pursue sign-in. No other apps 312 * will be given the option of signing in to the network. 313 * </li> 314 * </ul> 315 */ 316 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 317 public static final String ACTION_CAPTIVE_PORTAL_DETECTED = 318 "android.net.conn.CAPTIVE_PORTAL_DETECTED"; 319 320 /** 321 * Broadcast Action: A connection has been established to a new network, 322 * a captive portal has been detected preventing internet connectivity, 323 * the user was notified, and elected to sign into the captive portal. 324 * It may be used by apps that prompt the user to sign in. 325 * The new network is not the default network so it can only be accessed via 326 * the {@link Network} extra {@link #EXTRA_NETWORK}. 327 * This is an ordered broadcast and so it is perfectly acceptable for 328 * multiple receivers to in turn consider whether they are best suited to 329 * address the captive portal. 330 * A receiver should abort the broadcast if they are sure they are the 331 * appropriate handler of the captive portal. If the broadcast is aborted, 332 * the result code must be set to one of the following: 333 * <ul> 334 * <li>{@link #CAPTIVE_PORTAL_SIGNED_IN} The receiver has signed into the 335 * captive portal. After being verified to provide internet 336 * connectivity, this network will be made the default (assuming 337 * it is preferred over all other active networks). 338 * </li> 339 * <li>{@link #CAPTIVE_PORTAL_DISCONNECT} The user has indicated they do 340 * not want to pursue sign-in. No other apps will be given the 341 * option of signing in to the network. 342 * </li> 343 * </ul> 344 */ 345 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 346 public static final String ACTION_CAPTIVE_PORTAL_SIGN_IN = 347 "android.net.conn.CAPTIVE_PORTAL_SIGN_IN"; 348 349 /** 350 * The lookup key for a {@link Network} object passed along with a 351 * {@link #ACTION_CAPTIVE_PORTAL_DETECTED} or 352 * {@link #ACTION_CAPTIVE_PORTAL_SIGN_IN} intent. This network is not the 353 * default network and must be accessed using this {@link Network} object. 354 * Retrieve with {@link android.content.Intent#getParcelableExtra(String)}. 355 */ 356 public static final String EXTRA_NETWORK = "network"; 357 358 /** 359 * Specified as a result code of a {@link #ACTION_CAPTIVE_PORTAL_DETECTED} or 360 * {@link #ACTION_CAPTIVE_PORTAL_SIGN_IN} receiver to indicate 361 * the receiver has signed into the 362 * captive portal. After being verified to provide internet 363 * connectivity, this network will be made the default (assuming 364 * it is preferred over all other active networks). 365 */ 366 public static final int CAPTIVE_PORTAL_SIGNED_IN = 1; 367 368 /** 369 * Specified as a result code of a {@link #ACTION_CAPTIVE_PORTAL_DETECTED} or 370 * {@link #ACTION_CAPTIVE_PORTAL_SIGN_IN} receiver to indicate 371 * the receiver is familiar with 372 * this captive portal and knows sign-in is impossible or the user 373 * has indicated they do not want to pursue sign-in. No other apps will 374 * be given the option of signing in to the network. 375 */ 376 public static final int CAPTIVE_PORTAL_DISCONNECT = 2; 377 378 /** 379 * The absence of a connection type. 380 * @hide 381 */ 382 public static final int TYPE_NONE = -1; 383 384 /** 385 * The Mobile 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_MOBILE = 0; 390 /** 391 * The WIFI data connection. When active, all data traffic 392 * will use this network type's interface by default 393 * (it has a default route). 394 */ 395 public static final int TYPE_WIFI = 1; 396 /** 397 * An MMS-specific Mobile data connection. This network type may use the 398 * same network interface as {@link #TYPE_MOBILE} or it may use a different 399 * one. This is used by applications needing to talk to the carrier's 400 * Multimedia Messaging Service servers. 401 */ 402 public static final int TYPE_MOBILE_MMS = 2; 403 /** 404 * A SUPL-specific Mobile data connection. This network type may use the 405 * same network interface as {@link #TYPE_MOBILE} or it may use a different 406 * one. This is used by applications needing to talk to the carrier's 407 * Secure User Plane Location servers for help locating the device. 408 */ 409 public static final int TYPE_MOBILE_SUPL = 3; 410 /** 411 * A DUN-specific Mobile data connection. This network type may use the 412 * same network interface as {@link #TYPE_MOBILE} or it may use a different 413 * one. This is sometimes by the system when setting up an upstream connection 414 * for tethering so that the carrier is aware of DUN traffic. 415 */ 416 public static final int TYPE_MOBILE_DUN = 4; 417 /** 418 * A High Priority Mobile data connection. This network type uses the 419 * same network interface as {@link #TYPE_MOBILE} but the routing setup 420 * is different. Only requesting processes will have access to the 421 * Mobile DNS servers and only IP's explicitly requested via {@link #requestRouteToHost} 422 * will route over this interface if no default route exists. 423 */ 424 public static final int TYPE_MOBILE_HIPRI = 5; 425 /** 426 * The WiMAX data connection. When active, all data traffic 427 * will use this network type's interface by default 428 * (it has a default route). 429 */ 430 public static final int TYPE_WIMAX = 6; 431 432 /** 433 * The Bluetooth data connection. When active, all data traffic 434 * will use this network type's interface by default 435 * (it has a default route). 436 */ 437 public static final int TYPE_BLUETOOTH = 7; 438 439 /** 440 * Dummy data connection. This should not be used on shipping devices. 441 */ 442 public static final int TYPE_DUMMY = 8; 443 444 /** 445 * The Ethernet data connection. When active, all data traffic 446 * will use this network type's interface by default 447 * (it has a default route). 448 */ 449 public static final int TYPE_ETHERNET = 9; 450 451 /** 452 * Over the air Administration. 453 * {@hide} 454 */ 455 public static final int TYPE_MOBILE_FOTA = 10; 456 457 /** 458 * IP Multimedia Subsystem. 459 * {@hide} 460 */ 461 public static final int TYPE_MOBILE_IMS = 11; 462 463 /** 464 * Carrier Branded Services. 465 * {@hide} 466 */ 467 public static final int TYPE_MOBILE_CBS = 12; 468 469 /** 470 * A Wi-Fi p2p connection. Only requesting processes will have access to 471 * the peers connected. 472 * {@hide} 473 */ 474 public static final int TYPE_WIFI_P2P = 13; 475 476 /** 477 * The network to use for initially attaching to the network 478 * {@hide} 479 */ 480 public static final int TYPE_MOBILE_IA = 14; 481 482/** 483 * Emergency PDN connection for emergency calls 484 * {@hide} 485 */ 486 public static final int TYPE_MOBILE_EMERGENCY = 15; 487 488 /** 489 * The network that uses proxy to achieve connectivity. 490 * {@hide} 491 */ 492 public static final int TYPE_PROXY = 16; 493 494 /** 495 * A virtual network using one or more native bearers. 496 * It may or may not be providing security services. 497 */ 498 public static final int TYPE_VPN = 17; 499 500 /** {@hide} */ 501 public static final int MAX_RADIO_TYPE = TYPE_VPN; 502 503 /** {@hide} */ 504 public static final int MAX_NETWORK_TYPE = TYPE_VPN; 505 506 /** 507 * If you want to set the default network preference,you can directly 508 * change the networkAttributes array in framework's config.xml. 509 * 510 * @deprecated Since we support so many more networks now, the single 511 * network default network preference can't really express 512 * the hierarchy. Instead, the default is defined by the 513 * networkAttributes in config.xml. You can determine 514 * the current value by calling {@link #getNetworkPreference()} 515 * from an App. 516 */ 517 @Deprecated 518 public static final int DEFAULT_NETWORK_PREFERENCE = TYPE_WIFI; 519 520 /** 521 * Default value for {@link Settings.Global#CONNECTIVITY_CHANGE_DELAY} in 522 * milliseconds. This was introduced because IPv6 routes seem to take a 523 * moment to settle - trying network activity before the routes are adjusted 524 * can lead to packets using the wrong interface or having the wrong IP address. 525 * This delay is a bit crude, but in the future hopefully we will have kernel 526 * notifications letting us know when it's safe to use the new network. 527 * 528 * @hide 529 */ 530 public static final int CONNECTIVITY_CHANGE_DELAY_DEFAULT = 3000; 531 532 /** 533 * @hide 534 */ 535 public final static int INVALID_NET_ID = 0; 536 537 /** 538 * @hide 539 */ 540 public final static int REQUEST_ID_UNSET = 0; 541 542 private final IConnectivityManager mService; 543 544 private final String mPackageName; 545 546 private INetworkManagementService mNMService; 547 548 /** 549 * Tests if a given integer represents a valid network type. 550 * @param networkType the type to be tested 551 * @return a boolean. {@code true} if the type is valid, else {@code false} 552 */ 553 public static boolean isNetworkTypeValid(int networkType) { 554 return networkType >= 0 && networkType <= MAX_NETWORK_TYPE; 555 } 556 557 /** 558 * Returns a non-localized string representing a given network type. 559 * ONLY used for debugging output. 560 * @param type the type needing naming 561 * @return a String for the given type, or a string version of the type ("87") 562 * if no name is known. 563 * {@hide} 564 */ 565 public static String getNetworkTypeName(int type) { 566 switch (type) { 567 case TYPE_MOBILE: 568 return "MOBILE"; 569 case TYPE_WIFI: 570 return "WIFI"; 571 case TYPE_MOBILE_MMS: 572 return "MOBILE_MMS"; 573 case TYPE_MOBILE_SUPL: 574 return "MOBILE_SUPL"; 575 case TYPE_MOBILE_DUN: 576 return "MOBILE_DUN"; 577 case TYPE_MOBILE_HIPRI: 578 return "MOBILE_HIPRI"; 579 case TYPE_WIMAX: 580 return "WIMAX"; 581 case TYPE_BLUETOOTH: 582 return "BLUETOOTH"; 583 case TYPE_DUMMY: 584 return "DUMMY"; 585 case TYPE_ETHERNET: 586 return "ETHERNET"; 587 case TYPE_MOBILE_FOTA: 588 return "MOBILE_FOTA"; 589 case TYPE_MOBILE_IMS: 590 return "MOBILE_IMS"; 591 case TYPE_MOBILE_CBS: 592 return "MOBILE_CBS"; 593 case TYPE_WIFI_P2P: 594 return "WIFI_P2P"; 595 case TYPE_MOBILE_IA: 596 return "MOBILE_IA"; 597 case TYPE_MOBILE_EMERGENCY: 598 return "MOBILE_EMERGENCY"; 599 case TYPE_PROXY: 600 return "PROXY"; 601 default: 602 return Integer.toString(type); 603 } 604 } 605 606 /** 607 * Checks if a given type uses the cellular data connection. 608 * This should be replaced in the future by a network property. 609 * @param networkType the type to check 610 * @return a boolean - {@code true} if uses cellular network, else {@code false} 611 * {@hide} 612 */ 613 public static boolean isNetworkTypeMobile(int networkType) { 614 switch (networkType) { 615 case TYPE_MOBILE: 616 case TYPE_MOBILE_MMS: 617 case TYPE_MOBILE_SUPL: 618 case TYPE_MOBILE_DUN: 619 case TYPE_MOBILE_HIPRI: 620 case TYPE_MOBILE_FOTA: 621 case TYPE_MOBILE_IMS: 622 case TYPE_MOBILE_CBS: 623 case TYPE_MOBILE_IA: 624 case TYPE_MOBILE_EMERGENCY: 625 return true; 626 default: 627 return false; 628 } 629 } 630 631 /** 632 * Checks if the given network type is backed by a Wi-Fi radio. 633 * 634 * @hide 635 */ 636 public static boolean isNetworkTypeWifi(int networkType) { 637 switch (networkType) { 638 case TYPE_WIFI: 639 case TYPE_WIFI_P2P: 640 return true; 641 default: 642 return false; 643 } 644 } 645 646 /** 647 * Checks if the given network type should be exempt from VPN routing rules 648 * 649 * @hide 650 */ 651 public static boolean isNetworkTypeExempt(int networkType) { 652 switch (networkType) { 653 case TYPE_MOBILE_MMS: 654 case TYPE_MOBILE_SUPL: 655 case TYPE_MOBILE_HIPRI: 656 case TYPE_MOBILE_IA: 657 return true; 658 default: 659 return false; 660 } 661 } 662 663 /** 664 * Specifies the preferred network type. When the device has more 665 * than one type available the preferred network type will be used. 666 * 667 * @param preference the network type to prefer over all others. It is 668 * unspecified what happens to the old preferred network in the 669 * overall ordering. 670 * @deprecated Functionality has been removed as it no longer makes sense, 671 * with many more than two networks - we'd need an array to express 672 * preference. Instead we use dynamic network properties of 673 * the networks to describe their precedence. 674 */ 675 public void setNetworkPreference(int preference) { 676 } 677 678 /** 679 * Retrieves the current preferred network type. 680 * 681 * @return an integer representing the preferred network type 682 * 683 * <p>This method requires the caller to hold the permission 684 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 685 * @deprecated Functionality has been removed as it no longer makes sense, 686 * with many more than two networks - we'd need an array to express 687 * preference. Instead we use dynamic network properties of 688 * the networks to describe their precedence. 689 */ 690 public int getNetworkPreference() { 691 return TYPE_NONE; 692 } 693 694 /** 695 * Returns details about the currently active default data network. When 696 * connected, this network is the default route for outgoing connections. 697 * You should always check {@link NetworkInfo#isConnected()} before initiating 698 * network traffic. This may return {@code null} when there is no default 699 * network. 700 * 701 * @return a {@link NetworkInfo} object for the current default network 702 * or {@code null} if no network default network is currently active 703 * 704 * <p>This method requires the call to hold the permission 705 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 706 */ 707 public NetworkInfo getActiveNetworkInfo() { 708 try { 709 return mService.getActiveNetworkInfo(); 710 } catch (RemoteException e) { 711 return null; 712 } 713 } 714 715 /** 716 * Returns details about the currently active default data network 717 * for a given uid. This is for internal use only to avoid spying 718 * other apps. 719 * 720 * @return a {@link NetworkInfo} object for the current default network 721 * for the given uid or {@code null} if no default network is 722 * available for the specified uid. 723 * 724 * <p>This method requires the caller to hold the permission 725 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL} 726 * {@hide} 727 */ 728 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 729 try { 730 return mService.getActiveNetworkInfoForUid(uid); 731 } catch (RemoteException e) { 732 return null; 733 } 734 } 735 736 /** 737 * Returns connection status information about a particular 738 * network type. 739 * 740 * @param networkType integer specifying which networkType in 741 * which you're interested. 742 * @return a {@link NetworkInfo} object for the requested 743 * network type or {@code null} if the type is not 744 * supported by the device. 745 * 746 * <p>This method requires the caller to hold the permission 747 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 748 */ 749 public NetworkInfo getNetworkInfo(int networkType) { 750 try { 751 return mService.getNetworkInfo(networkType); 752 } catch (RemoteException e) { 753 return null; 754 } 755 } 756 757 /** 758 * Returns connection status information about a particular 759 * Network. 760 * 761 * @param network {@link Network} specifying which network 762 * in which you're interested. 763 * @return a {@link NetworkInfo} object for the requested 764 * network or {@code null} if the {@code Network} 765 * is not valid. 766 * 767 * <p>This method requires the caller to hold the permission 768 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 769 */ 770 public NetworkInfo getNetworkInfo(Network network) { 771 try { 772 return mService.getNetworkInfoForNetwork(network); 773 } catch (RemoteException e) { 774 return null; 775 } 776 } 777 778 /** 779 * Returns connection status information about all network 780 * types supported by the device. 781 * 782 * @return an array of {@link NetworkInfo} objects. Check each 783 * {@link NetworkInfo#getType} for which type each applies. 784 * 785 * <p>This method requires the caller to hold the permission 786 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 787 */ 788 public NetworkInfo[] getAllNetworkInfo() { 789 try { 790 return mService.getAllNetworkInfo(); 791 } catch (RemoteException e) { 792 return null; 793 } 794 } 795 796 /** 797 * Returns an array of all {@link Network} currently tracked by the 798 * framework. 799 * 800 * @return an array of {@link Network} objects. 801 * 802 * <p>This method requires the caller to hold the permission 803 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 804 */ 805 public Network[] getAllNetworks() { 806 try { 807 return mService.getAllNetworks(); 808 } catch (RemoteException e) { 809 return null; 810 } 811 } 812 813 /** 814 * Returns details about the Provisioning or currently active default data network. When 815 * connected, this network is the default route for outgoing connections. 816 * You should always check {@link NetworkInfo#isConnected()} before initiating 817 * network traffic. This may return {@code null} when there is no default 818 * network. 819 * 820 * @return a {@link NetworkInfo} object for the current default network 821 * or {@code null} if no network default network is currently active 822 * 823 * <p>This method requires the call to hold the permission 824 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 825 * 826 * {@hide} 827 */ 828 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 829 try { 830 return mService.getProvisioningOrActiveNetworkInfo(); 831 } catch (RemoteException e) { 832 return null; 833 } 834 } 835 836 /** 837 * Returns the IP information for the current default network. 838 * 839 * @return a {@link LinkProperties} object describing the IP info 840 * for the current default network, or {@code null} if there 841 * is no current default network. 842 * 843 * <p>This method requires the call to hold the permission 844 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 845 * {@hide} 846 */ 847 public LinkProperties getActiveLinkProperties() { 848 try { 849 return mService.getActiveLinkProperties(); 850 } catch (RemoteException e) { 851 return null; 852 } 853 } 854 855 /** 856 * Returns the IP information for a given network type. 857 * 858 * @param networkType the network type of interest. 859 * @return a {@link LinkProperties} object describing the IP info 860 * for the given networkType, or {@code null} if there is 861 * no current default network. 862 * 863 * <p>This method requires the call to hold the permission 864 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 865 * {@hide} 866 */ 867 public LinkProperties getLinkProperties(int networkType) { 868 try { 869 return mService.getLinkPropertiesForType(networkType); 870 } catch (RemoteException e) { 871 return null; 872 } 873 } 874 875 /** 876 * Get the {@link LinkProperties} for the given {@link Network}. This 877 * will return {@code null} if the network is unknown. 878 * 879 * @param network The {@link Network} object identifying the network in question. 880 * @return The {@link LinkProperties} for the network, or {@code null}. 881 **/ 882 public LinkProperties getLinkProperties(Network network) { 883 try { 884 return mService.getLinkProperties(network); 885 } catch (RemoteException e) { 886 return null; 887 } 888 } 889 890 /** 891 * Get the {@link NetworkCapabilities} for the given {@link Network}. This 892 * will return {@code null} if the network is unknown. 893 * 894 * @param network The {@link Network} object identifying the network in question. 895 * @return The {@link NetworkCapabilities} for the network, or {@code null}. 896 */ 897 public NetworkCapabilities getNetworkCapabilities(Network network) { 898 try { 899 return mService.getNetworkCapabilities(network); 900 } catch (RemoteException e) { 901 return null; 902 } 903 } 904 905 /** 906 * Tells each network type to set its radio power state as directed. 907 * 908 * @param turnOn a boolean, {@code true} to turn the radios on, 909 * {@code false} to turn them off. 910 * @return a boolean, {@code true} indicating success. All network types 911 * will be tried, even if some fail. 912 * 913 * <p>This method requires the call to hold the permission 914 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 915 * {@hide} 916 */ 917// TODO - check for any callers and remove 918// public boolean setRadios(boolean turnOn) { 919// try { 920// return mService.setRadios(turnOn); 921// } catch (RemoteException e) { 922// return false; 923// } 924// } 925 926 /** 927 * Tells a given networkType to set its radio power state as directed. 928 * 929 * @param networkType the int networkType of interest. 930 * @param turnOn a boolean, {@code true} to turn the radio on, 931 * {@code} false to turn it off. 932 * @return a boolean, {@code true} indicating success. 933 * 934 * <p>This method requires the call to hold the permission 935 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 936 * {@hide} 937 */ 938// TODO - check for any callers and remove 939// public boolean setRadio(int networkType, boolean turnOn) { 940// try { 941// return mService.setRadio(networkType, turnOn); 942// } catch (RemoteException e) { 943// return false; 944// } 945// } 946 947 /** 948 * Tells the underlying networking system that the caller wants to 949 * begin using the named feature. The interpretation of {@code feature} 950 * is completely up to each networking implementation. 951 * <p>This method requires the caller to hold the permission 952 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 953 * @param networkType specifies which network the request pertains to 954 * @param feature the name of the feature to be used 955 * @return an integer value representing the outcome of the request. 956 * The interpretation of this value is specific to each networking 957 * implementation+feature combination, except that the value {@code -1} 958 * always indicates failure. 959 * 960 * @deprecated Deprecated in favor of the cleaner {@link #requestNetwork} api. 961 */ 962 public int startUsingNetworkFeature(int networkType, String feature) { 963 NetworkCapabilities netCap = networkCapabilitiesForFeature(networkType, feature); 964 if (netCap == null) { 965 Log.d(TAG, "Can't satisfy startUsingNetworkFeature for " + networkType + ", " + 966 feature); 967 return PhoneConstants.APN_REQUEST_FAILED; 968 } 969 970 NetworkRequest request = null; 971 synchronized (sLegacyRequests) { 972 if (LEGACY_DBG) { 973 Log.d(TAG, "Looking for legacyRequest for netCap with hash: " + netCap + " (" + 974 netCap.hashCode() + ")"); 975 Log.d(TAG, "sLegacyRequests has:"); 976 for (NetworkCapabilities nc : sLegacyRequests.keySet()) { 977 Log.d(TAG, " " + nc + " (" + nc.hashCode() + ")"); 978 } 979 } 980 LegacyRequest l = sLegacyRequests.get(netCap); 981 if (l != null) { 982 Log.d(TAG, "renewing startUsingNetworkFeature request " + l.networkRequest); 983 renewRequestLocked(l); 984 if (l.currentNetwork != null) { 985 return PhoneConstants.APN_ALREADY_ACTIVE; 986 } else { 987 return PhoneConstants.APN_REQUEST_STARTED; 988 } 989 } 990 991 request = requestNetworkForFeatureLocked(netCap); 992 } 993 if (request != null) { 994 Log.d(TAG, "starting startUsingNetworkFeature for request " + request); 995 return PhoneConstants.APN_REQUEST_STARTED; 996 } else { 997 Log.d(TAG, " request Failed"); 998 return PhoneConstants.APN_REQUEST_FAILED; 999 } 1000 } 1001 1002 /** 1003 * Tells the underlying networking system that the caller is finished 1004 * using the named feature. The interpretation of {@code feature} 1005 * is completely up to each networking implementation. 1006 * <p>This method requires the caller to hold the permission 1007 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1008 * @param networkType specifies which network the request pertains to 1009 * @param feature the name of the feature that is no longer needed 1010 * @return an integer value representing the outcome of the request. 1011 * The interpretation of this value is specific to each networking 1012 * implementation+feature combination, except that the value {@code -1} 1013 * always indicates failure. 1014 * 1015 * @deprecated Deprecated in favor of the cleaner {@link #requestNetwork} api. 1016 */ 1017 public int stopUsingNetworkFeature(int networkType, String feature) { 1018 NetworkCapabilities netCap = networkCapabilitiesForFeature(networkType, feature); 1019 if (netCap == null) { 1020 Log.d(TAG, "Can't satisfy stopUsingNetworkFeature for " + networkType + ", " + 1021 feature); 1022 return -1; 1023 } 1024 1025 NetworkCallback networkCallback = removeRequestForFeature(netCap); 1026 if (networkCallback != null) { 1027 Log.d(TAG, "stopUsingNetworkFeature for " + networkType + ", " + feature); 1028 unregisterNetworkCallback(networkCallback); 1029 } 1030 return 1; 1031 } 1032 1033 /** 1034 * Removes the NET_CAPABILITY_NOT_RESTRICTED capability from the given 1035 * NetworkCapabilities object if all the capabilities it provides are 1036 * typically provided by restricted networks. 1037 * 1038 * TODO: consider: 1039 * - Moving to NetworkCapabilities 1040 * - Renaming it to guessRestrictedCapability and make it set the 1041 * restricted capability bit in addition to clearing it. 1042 * @hide 1043 */ 1044 public static void maybeMarkCapabilitiesRestricted(NetworkCapabilities nc) { 1045 for (int capability : nc.getCapabilities()) { 1046 switch (capability) { 1047 case NetworkCapabilities.NET_CAPABILITY_CBS: 1048 case NetworkCapabilities.NET_CAPABILITY_DUN: 1049 case NetworkCapabilities.NET_CAPABILITY_EIMS: 1050 case NetworkCapabilities.NET_CAPABILITY_FOTA: 1051 case NetworkCapabilities.NET_CAPABILITY_IA: 1052 case NetworkCapabilities.NET_CAPABILITY_IMS: 1053 case NetworkCapabilities.NET_CAPABILITY_RCS: 1054 case NetworkCapabilities.NET_CAPABILITY_XCAP: 1055 case NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED: //there by default 1056 continue; 1057 default: 1058 // At least one capability usually provided by unrestricted 1059 // networks. Conclude that this network is unrestricted. 1060 return; 1061 } 1062 } 1063 // All the capabilities are typically provided by restricted networks. 1064 // Conclude that this network is restricted. 1065 nc.removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 1066 } 1067 1068 private NetworkCapabilities networkCapabilitiesForFeature(int networkType, String feature) { 1069 if (networkType == TYPE_MOBILE) { 1070 int cap = -1; 1071 if ("enableMMS".equals(feature)) { 1072 cap = NetworkCapabilities.NET_CAPABILITY_MMS; 1073 } else if ("enableSUPL".equals(feature)) { 1074 cap = NetworkCapabilities.NET_CAPABILITY_SUPL; 1075 } else if ("enableDUN".equals(feature) || "enableDUNAlways".equals(feature)) { 1076 cap = NetworkCapabilities.NET_CAPABILITY_DUN; 1077 } else if ("enableHIPRI".equals(feature)) { 1078 cap = NetworkCapabilities.NET_CAPABILITY_INTERNET; 1079 } else if ("enableFOTA".equals(feature)) { 1080 cap = NetworkCapabilities.NET_CAPABILITY_FOTA; 1081 } else if ("enableIMS".equals(feature)) { 1082 cap = NetworkCapabilities.NET_CAPABILITY_IMS; 1083 } else if ("enableCBS".equals(feature)) { 1084 cap = NetworkCapabilities.NET_CAPABILITY_CBS; 1085 } else { 1086 return null; 1087 } 1088 NetworkCapabilities netCap = new NetworkCapabilities(); 1089 netCap.addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR).addCapability(cap); 1090 maybeMarkCapabilitiesRestricted(netCap); 1091 return netCap; 1092 } else if (networkType == TYPE_WIFI) { 1093 if ("p2p".equals(feature)) { 1094 NetworkCapabilities netCap = new NetworkCapabilities(); 1095 netCap.addTransportType(NetworkCapabilities.TRANSPORT_WIFI); 1096 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_WIFI_P2P); 1097 maybeMarkCapabilitiesRestricted(netCap); 1098 return netCap; 1099 } 1100 } 1101 return null; 1102 } 1103 1104 private int legacyTypeForNetworkCapabilities(NetworkCapabilities netCap) { 1105 if (netCap == null) return TYPE_NONE; 1106 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_CBS)) { 1107 return TYPE_MOBILE_CBS; 1108 } 1109 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_IMS)) { 1110 return TYPE_MOBILE_IMS; 1111 } 1112 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_FOTA)) { 1113 return TYPE_MOBILE_FOTA; 1114 } 1115 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_DUN)) { 1116 return TYPE_MOBILE_DUN; 1117 } 1118 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_SUPL)) { 1119 return TYPE_MOBILE_SUPL; 1120 } 1121 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_MMS)) { 1122 return TYPE_MOBILE_MMS; 1123 } 1124 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)) { 1125 return TYPE_MOBILE_HIPRI; 1126 } 1127 if (netCap.hasCapability(NetworkCapabilities.NET_CAPABILITY_WIFI_P2P)) { 1128 return TYPE_WIFI_P2P; 1129 } 1130 return TYPE_NONE; 1131 } 1132 1133 private static class LegacyRequest { 1134 NetworkCapabilities networkCapabilities; 1135 NetworkRequest networkRequest; 1136 int expireSequenceNumber; 1137 Network currentNetwork; 1138 int delay = -1; 1139 NetworkCallback networkCallback = new NetworkCallback() { 1140 @Override 1141 public void onAvailable(Network network) { 1142 currentNetwork = network; 1143 Log.d(TAG, "startUsingNetworkFeature got Network:" + network); 1144 setProcessDefaultNetworkForHostResolution(network); 1145 } 1146 @Override 1147 public void onLost(Network network) { 1148 if (network.equals(currentNetwork)) { 1149 currentNetwork = null; 1150 setProcessDefaultNetworkForHostResolution(null); 1151 } 1152 Log.d(TAG, "startUsingNetworkFeature lost Network:" + network); 1153 } 1154 }; 1155 } 1156 1157 private HashMap<NetworkCapabilities, LegacyRequest> sLegacyRequests = 1158 new HashMap<NetworkCapabilities, LegacyRequest>(); 1159 1160 private NetworkRequest findRequestForFeature(NetworkCapabilities netCap) { 1161 synchronized (sLegacyRequests) { 1162 LegacyRequest l = sLegacyRequests.get(netCap); 1163 if (l != null) return l.networkRequest; 1164 } 1165 return null; 1166 } 1167 1168 private void renewRequestLocked(LegacyRequest l) { 1169 l.expireSequenceNumber++; 1170 Log.d(TAG, "renewing request to seqNum " + l.expireSequenceNumber); 1171 sendExpireMsgForFeature(l.networkCapabilities, l.expireSequenceNumber, l.delay); 1172 } 1173 1174 private void expireRequest(NetworkCapabilities netCap, int sequenceNum) { 1175 int ourSeqNum = -1; 1176 synchronized (sLegacyRequests) { 1177 LegacyRequest l = sLegacyRequests.get(netCap); 1178 if (l == null) return; 1179 ourSeqNum = l.expireSequenceNumber; 1180 if (l.expireSequenceNumber == sequenceNum) { 1181 unregisterNetworkCallback(l.networkCallback); 1182 sLegacyRequests.remove(netCap); 1183 } 1184 } 1185 Log.d(TAG, "expireRequest with " + ourSeqNum + ", " + sequenceNum); 1186 } 1187 1188 private NetworkRequest requestNetworkForFeatureLocked(NetworkCapabilities netCap) { 1189 int delay = -1; 1190 int type = legacyTypeForNetworkCapabilities(netCap); 1191 try { 1192 delay = mService.getRestoreDefaultNetworkDelay(type); 1193 } catch (RemoteException e) {} 1194 LegacyRequest l = new LegacyRequest(); 1195 l.networkCapabilities = netCap; 1196 l.delay = delay; 1197 l.expireSequenceNumber = 0; 1198 l.networkRequest = sendRequestForNetwork(netCap, l.networkCallback, 0, 1199 REQUEST, type); 1200 if (l.networkRequest == null) return null; 1201 sLegacyRequests.put(netCap, l); 1202 sendExpireMsgForFeature(netCap, l.expireSequenceNumber, delay); 1203 return l.networkRequest; 1204 } 1205 1206 private void sendExpireMsgForFeature(NetworkCapabilities netCap, int seqNum, int delay) { 1207 if (delay >= 0) { 1208 Log.d(TAG, "sending expire msg with seqNum " + seqNum + " and delay " + delay); 1209 Message msg = sCallbackHandler.obtainMessage(EXPIRE_LEGACY_REQUEST, seqNum, 0, netCap); 1210 sCallbackHandler.sendMessageDelayed(msg, delay); 1211 } 1212 } 1213 1214 private NetworkCallback removeRequestForFeature(NetworkCapabilities netCap) { 1215 synchronized (sLegacyRequests) { 1216 LegacyRequest l = sLegacyRequests.remove(netCap); 1217 if (l == null) return null; 1218 return l.networkCallback; 1219 } 1220 } 1221 1222 /** 1223 * Ensure that a network route exists to deliver traffic to the specified 1224 * host via the specified network interface. An attempt to add a route that 1225 * already exists is ignored, but treated as successful. 1226 * <p>This method requires the caller to hold the permission 1227 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1228 * @param networkType the type of the network over which traffic to the specified 1229 * host is to be routed 1230 * @param hostAddress the IP address of the host to which the route is desired 1231 * @return {@code true} on success, {@code false} on failure 1232 * 1233 * @deprecated Deprecated in favor of the {@link #requestNetwork}, 1234 * {@link #setProcessDefaultNetwork} and {@link Network#getSocketFactory} api. 1235 */ 1236 public boolean requestRouteToHost(int networkType, int hostAddress) { 1237 InetAddress inetAddress = NetworkUtils.intToInetAddress(hostAddress); 1238 1239 if (inetAddress == null) { 1240 return false; 1241 } 1242 1243 return requestRouteToHostAddress(networkType, inetAddress); 1244 } 1245 1246 /** 1247 * Ensure that a network route exists to deliver traffic to the specified 1248 * host via the specified network interface. An attempt to add a route that 1249 * already exists is ignored, but treated as successful. 1250 * <p>This method requires the caller to hold the permission 1251 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1252 * @param networkType the type of the network over which traffic to the specified 1253 * host is to be routed 1254 * @param hostAddress the IP address of the host to which the route is desired 1255 * @return {@code true} on success, {@code false} on failure 1256 * @hide 1257 * @deprecated Deprecated in favor of the {@link #requestNetwork} and 1258 * {@link #setProcessDefaultNetwork} api. 1259 */ 1260 public boolean requestRouteToHostAddress(int networkType, InetAddress hostAddress) { 1261 byte[] address = hostAddress.getAddress(); 1262 try { 1263 return mService.requestRouteToHostAddress(networkType, address, mPackageName); 1264 } catch (RemoteException e) { 1265 return false; 1266 } 1267 } 1268 1269 /** 1270 * Returns the value of the setting for background data usage. If false, 1271 * applications should not use the network if the application is not in the 1272 * foreground. Developers should respect this setting, and check the value 1273 * of this before performing any background data operations. 1274 * <p> 1275 * All applications that have background services that use the network 1276 * should listen to {@link #ACTION_BACKGROUND_DATA_SETTING_CHANGED}. 1277 * <p> 1278 * @deprecated As of {@link VERSION_CODES#ICE_CREAM_SANDWICH}, availability of 1279 * background data depends on several combined factors, and this method will 1280 * always return {@code true}. Instead, when background data is unavailable, 1281 * {@link #getActiveNetworkInfo()} will now appear disconnected. 1282 * 1283 * @return Whether background data usage is allowed. 1284 */ 1285 @Deprecated 1286 public boolean getBackgroundDataSetting() { 1287 // assume that background data is allowed; final authority is 1288 // NetworkInfo which may be blocked. 1289 return true; 1290 } 1291 1292 /** 1293 * Sets the value of the setting for background data usage. 1294 * 1295 * @param allowBackgroundData Whether an application should use data while 1296 * it is in the background. 1297 * 1298 * @attr ref android.Manifest.permission#CHANGE_BACKGROUND_DATA_SETTING 1299 * @see #getBackgroundDataSetting() 1300 * @hide 1301 */ 1302 @Deprecated 1303 public void setBackgroundDataSetting(boolean allowBackgroundData) { 1304 // ignored 1305 } 1306 1307 /** 1308 * Return quota status for the current active network, or {@code null} if no 1309 * network is active. Quota status can change rapidly, so these values 1310 * shouldn't be cached. 1311 * 1312 * <p>This method requires the call to hold the permission 1313 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1314 * 1315 * @hide 1316 */ 1317 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1318 try { 1319 return mService.getActiveNetworkQuotaInfo(); 1320 } catch (RemoteException e) { 1321 return null; 1322 } 1323 } 1324 1325 /** 1326 * @hide 1327 * @deprecated Talk to TelephonyManager directly 1328 */ 1329 public boolean getMobileDataEnabled() { 1330 IBinder b = ServiceManager.getService(Context.TELEPHONY_SERVICE); 1331 if (b != null) { 1332 try { 1333 ITelephony it = ITelephony.Stub.asInterface(b); 1334 return it.getDataEnabled(); 1335 } catch (RemoteException e) { } 1336 } 1337 return false; 1338 } 1339 1340 /** 1341 * Callback for use with {@link ConnectivityManager#registerDefaultNetworkActiveListener} 1342 * to find out when the system default network has gone in to a high power state. 1343 */ 1344 public interface OnNetworkActiveListener { 1345 /** 1346 * Called on the main thread of the process to report that the current data network 1347 * has become active, and it is now a good time to perform any pending network 1348 * operations. Note that this listener only tells you when the network becomes 1349 * active; if at any other time you want to know whether it is active (and thus okay 1350 * to initiate network traffic), you can retrieve its instantaneous state with 1351 * {@link ConnectivityManager#isDefaultNetworkActive}. 1352 */ 1353 public void onNetworkActive(); 1354 } 1355 1356 private INetworkManagementService getNetworkManagementService() { 1357 synchronized (this) { 1358 if (mNMService != null) { 1359 return mNMService; 1360 } 1361 IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE); 1362 mNMService = INetworkManagementService.Stub.asInterface(b); 1363 return mNMService; 1364 } 1365 } 1366 1367 private final ArrayMap<OnNetworkActiveListener, INetworkActivityListener> 1368 mNetworkActivityListeners 1369 = new ArrayMap<OnNetworkActiveListener, INetworkActivityListener>(); 1370 1371 /** 1372 * Start listening to reports when the system's default data network is active, meaning it is 1373 * a good time to perform network traffic. Use {@link #isDefaultNetworkActive()} 1374 * to determine the current state of the system's default network after registering the 1375 * listener. 1376 * <p> 1377 * If the process default network has been set with 1378 * {@link ConnectivityManager#setProcessDefaultNetwork} this function will not 1379 * reflect the process's default, but the system default. 1380 * 1381 * @param l The listener to be told when the network is active. 1382 */ 1383 public void registerDefaultNetworkActiveListener(final OnNetworkActiveListener l) { 1384 INetworkActivityListener rl = new INetworkActivityListener.Stub() { 1385 @Override 1386 public void onNetworkActive() throws RemoteException { 1387 l.onNetworkActive(); 1388 } 1389 }; 1390 1391 try { 1392 getNetworkManagementService().registerNetworkActivityListener(rl); 1393 mNetworkActivityListeners.put(l, rl); 1394 } catch (RemoteException e) { 1395 } 1396 } 1397 1398 /** 1399 * Remove network active listener previously registered with 1400 * {@link #registerDefaultNetworkActiveListener}. 1401 * 1402 * @param l Previously registered listener. 1403 */ 1404 public void unregisterDefaultNetworkActiveListener(OnNetworkActiveListener l) { 1405 INetworkActivityListener rl = mNetworkActivityListeners.get(l); 1406 if (rl == null) { 1407 throw new IllegalArgumentException("Listener not registered: " + l); 1408 } 1409 try { 1410 getNetworkManagementService().unregisterNetworkActivityListener(rl); 1411 } catch (RemoteException e) { 1412 } 1413 } 1414 1415 /** 1416 * Return whether the data network is currently active. An active network means that 1417 * it is currently in a high power state for performing data transmission. On some 1418 * types of networks, it may be expensive to move and stay in such a state, so it is 1419 * more power efficient to batch network traffic together when the radio is already in 1420 * this state. This method tells you whether right now is currently a good time to 1421 * initiate network traffic, as the network is already active. 1422 */ 1423 public boolean isDefaultNetworkActive() { 1424 try { 1425 return getNetworkManagementService().isNetworkActive(); 1426 } catch (RemoteException e) { 1427 } 1428 return false; 1429 } 1430 1431 /** 1432 * {@hide} 1433 */ 1434 public ConnectivityManager(IConnectivityManager service, String packageName) { 1435 mService = checkNotNull(service, "missing IConnectivityManager"); 1436 mPackageName = checkNotNull(packageName, "missing package name"); 1437 } 1438 1439 /** {@hide} */ 1440 public static ConnectivityManager from(Context context) { 1441 return (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); 1442 } 1443 1444 /** 1445 * Get the set of tetherable, available interfaces. This list is limited by 1446 * device configuration and current interface existence. 1447 * 1448 * @return an array of 0 or more Strings of tetherable interface names. 1449 * 1450 * <p>This method requires the call to hold the permission 1451 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1452 * {@hide} 1453 */ 1454 public String[] getTetherableIfaces() { 1455 try { 1456 return mService.getTetherableIfaces(); 1457 } catch (RemoteException e) { 1458 return new String[0]; 1459 } 1460 } 1461 1462 /** 1463 * Get the set of tethered interfaces. 1464 * 1465 * @return an array of 0 or more String of currently tethered interface names. 1466 * 1467 * <p>This method requires the call to hold the permission 1468 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1469 * {@hide} 1470 */ 1471 public String[] getTetheredIfaces() { 1472 try { 1473 return mService.getTetheredIfaces(); 1474 } catch (RemoteException e) { 1475 return new String[0]; 1476 } 1477 } 1478 1479 /** 1480 * Get the set of interface names which attempted to tether but 1481 * failed. Re-attempting to tether may cause them to reset to the Tethered 1482 * state. Alternatively, causing the interface to be destroyed and recreated 1483 * may cause them to reset to the available state. 1484 * {@link ConnectivityManager#getLastTetherError} can be used to get more 1485 * information on the cause of the errors. 1486 * 1487 * @return an array of 0 or more String indicating the interface names 1488 * which failed to tether. 1489 * 1490 * <p>This method requires the call to hold the permission 1491 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1492 * {@hide} 1493 */ 1494 public String[] getTetheringErroredIfaces() { 1495 try { 1496 return mService.getTetheringErroredIfaces(); 1497 } catch (RemoteException e) { 1498 return new String[0]; 1499 } 1500 } 1501 1502 /** 1503 * Attempt to tether the named interface. This will setup a dhcp server 1504 * on the interface, forward and NAT IP packets and forward DNS requests 1505 * to the best active upstream network interface. Note that if no upstream 1506 * IP network interface is available, dhcp will still run and traffic will be 1507 * allowed between the tethered devices and this device, though upstream net 1508 * access will of course fail until an upstream network interface becomes 1509 * active. 1510 * 1511 * @param iface the interface name to tether. 1512 * @return error a {@code TETHER_ERROR} value indicating success or failure type 1513 * 1514 * <p>This method requires the call to hold the permission 1515 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1516 * {@hide} 1517 */ 1518 public int tether(String iface) { 1519 try { 1520 return mService.tether(iface); 1521 } catch (RemoteException e) { 1522 return TETHER_ERROR_SERVICE_UNAVAIL; 1523 } 1524 } 1525 1526 /** 1527 * Stop tethering the named interface. 1528 * 1529 * @param iface the interface name to untether. 1530 * @return error a {@code TETHER_ERROR} value indicating success or failure type 1531 * 1532 * <p>This method requires the call to hold the permission 1533 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1534 * {@hide} 1535 */ 1536 public int untether(String iface) { 1537 try { 1538 return mService.untether(iface); 1539 } catch (RemoteException e) { 1540 return TETHER_ERROR_SERVICE_UNAVAIL; 1541 } 1542 } 1543 1544 /** 1545 * Check if the device allows for tethering. It may be disabled via 1546 * {@code ro.tether.denied} system property, Settings.TETHER_SUPPORTED or 1547 * due to device configuration. 1548 * 1549 * @return a boolean - {@code true} indicating Tethering is supported. 1550 * 1551 * <p>This method requires the call to hold the permission 1552 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1553 * {@hide} 1554 */ 1555 public boolean isTetheringSupported() { 1556 try { 1557 return mService.isTetheringSupported(); 1558 } catch (RemoteException e) { 1559 return false; 1560 } 1561 } 1562 1563 /** 1564 * Get the list of regular expressions that define any tetherable 1565 * USB network interfaces. If USB tethering is not supported by the 1566 * device, this list should be empty. 1567 * 1568 * @return an array of 0 or more regular expression Strings defining 1569 * what interfaces are considered tetherable usb interfaces. 1570 * 1571 * <p>This method requires the call to hold the permission 1572 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1573 * {@hide} 1574 */ 1575 public String[] getTetherableUsbRegexs() { 1576 try { 1577 return mService.getTetherableUsbRegexs(); 1578 } catch (RemoteException e) { 1579 return new String[0]; 1580 } 1581 } 1582 1583 /** 1584 * Get the list of regular expressions that define any tetherable 1585 * Wifi network interfaces. If Wifi tethering is not supported by the 1586 * device, this list should be empty. 1587 * 1588 * @return an array of 0 or more regular expression Strings defining 1589 * what interfaces are considered tetherable wifi interfaces. 1590 * 1591 * <p>This method requires the call to hold the permission 1592 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1593 * {@hide} 1594 */ 1595 public String[] getTetherableWifiRegexs() { 1596 try { 1597 return mService.getTetherableWifiRegexs(); 1598 } catch (RemoteException e) { 1599 return new String[0]; 1600 } 1601 } 1602 1603 /** 1604 * Get the list of regular expressions that define any tetherable 1605 * Bluetooth network interfaces. If Bluetooth tethering is not supported by the 1606 * device, this list should be empty. 1607 * 1608 * @return an array of 0 or more regular expression Strings defining 1609 * what interfaces are considered tetherable bluetooth interfaces. 1610 * 1611 * <p>This method requires the call to hold the permission 1612 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1613 * {@hide} 1614 */ 1615 public String[] getTetherableBluetoothRegexs() { 1616 try { 1617 return mService.getTetherableBluetoothRegexs(); 1618 } catch (RemoteException e) { 1619 return new String[0]; 1620 } 1621 } 1622 1623 /** 1624 * Attempt to both alter the mode of USB and Tethering of USB. A 1625 * utility method to deal with some of the complexity of USB - will 1626 * attempt to switch to Rndis and subsequently tether the resulting 1627 * interface on {@code true} or turn off tethering and switch off 1628 * Rndis on {@code false}. 1629 * 1630 * @param enable a boolean - {@code true} to enable tethering 1631 * @return error a {@code TETHER_ERROR} value indicating success or failure type 1632 * 1633 * <p>This method requires the call to hold the permission 1634 * {@link android.Manifest.permission#CHANGE_NETWORK_STATE}. 1635 * {@hide} 1636 */ 1637 public int setUsbTethering(boolean enable) { 1638 try { 1639 return mService.setUsbTethering(enable); 1640 } catch (RemoteException e) { 1641 return TETHER_ERROR_SERVICE_UNAVAIL; 1642 } 1643 } 1644 1645 /** {@hide} */ 1646 public static final int TETHER_ERROR_NO_ERROR = 0; 1647 /** {@hide} */ 1648 public static final int TETHER_ERROR_UNKNOWN_IFACE = 1; 1649 /** {@hide} */ 1650 public static final int TETHER_ERROR_SERVICE_UNAVAIL = 2; 1651 /** {@hide} */ 1652 public static final int TETHER_ERROR_UNSUPPORTED = 3; 1653 /** {@hide} */ 1654 public static final int TETHER_ERROR_UNAVAIL_IFACE = 4; 1655 /** {@hide} */ 1656 public static final int TETHER_ERROR_MASTER_ERROR = 5; 1657 /** {@hide} */ 1658 public static final int TETHER_ERROR_TETHER_IFACE_ERROR = 6; 1659 /** {@hide} */ 1660 public static final int TETHER_ERROR_UNTETHER_IFACE_ERROR = 7; 1661 /** {@hide} */ 1662 public static final int TETHER_ERROR_ENABLE_NAT_ERROR = 8; 1663 /** {@hide} */ 1664 public static final int TETHER_ERROR_DISABLE_NAT_ERROR = 9; 1665 /** {@hide} */ 1666 public static final int TETHER_ERROR_IFACE_CFG_ERROR = 10; 1667 1668 /** 1669 * Get a more detailed error code after a Tethering or Untethering 1670 * request asynchronously failed. 1671 * 1672 * @param iface The name of the interface of interest 1673 * @return error The error code of the last error tethering or untethering the named 1674 * interface 1675 * 1676 * <p>This method requires the call to hold the permission 1677 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1678 * {@hide} 1679 */ 1680 public int getLastTetherError(String iface) { 1681 try { 1682 return mService.getLastTetherError(iface); 1683 } catch (RemoteException e) { 1684 return TETHER_ERROR_SERVICE_UNAVAIL; 1685 } 1686 } 1687 1688 /** 1689 * Report network connectivity status. This is currently used only 1690 * to alter status bar UI. 1691 * 1692 * @param networkType The type of network you want to report on 1693 * @param percentage The quality of the connection 0 is bad, 100 is good 1694 * 1695 * <p>This method requires the call to hold the permission 1696 * {@link android.Manifest.permission#STATUS_BAR}. 1697 * {@hide} 1698 */ 1699 public void reportInetCondition(int networkType, int percentage) { 1700 try { 1701 mService.reportInetCondition(networkType, percentage); 1702 } catch (RemoteException e) { 1703 } 1704 } 1705 1706 /** 1707 * Report a problem network to the framework. This provides a hint to the system 1708 * that there might be connectivity problems on this network and may cause 1709 * the framework to re-evaluate network connectivity and/or switch to another 1710 * network. 1711 * 1712 * @param network The {@link Network} the application was attempting to use 1713 * or {@code null} to indicate the current default network. 1714 */ 1715 public void reportBadNetwork(Network network) { 1716 try { 1717 mService.reportBadNetwork(network); 1718 } catch (RemoteException e) { 1719 } 1720 } 1721 1722 /** 1723 * Set a network-independent global http proxy. This is not normally what you want 1724 * for typical HTTP proxies - they are general network dependent. However if you're 1725 * doing something unusual like general internal filtering this may be useful. On 1726 * a private network where the proxy is not accessible, you may break HTTP using this. 1727 * 1728 * @param p The a {@link ProxyInfo} object defining the new global 1729 * HTTP proxy. A {@code null} value will clear the global HTTP proxy. 1730 * 1731 * <p>This method requires the call to hold the permission 1732 * android.Manifest.permission#CONNECTIVITY_INTERNAL. 1733 * @hide 1734 */ 1735 public void setGlobalProxy(ProxyInfo p) { 1736 try { 1737 mService.setGlobalProxy(p); 1738 } catch (RemoteException e) { 1739 } 1740 } 1741 1742 /** 1743 * Retrieve any network-independent global HTTP proxy. 1744 * 1745 * @return {@link ProxyInfo} for the current global HTTP proxy or {@code null} 1746 * if no global HTTP proxy is set. 1747 * 1748 * <p>This method requires the call to hold the permission 1749 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1750 * @hide 1751 */ 1752 public ProxyInfo getGlobalProxy() { 1753 try { 1754 return mService.getGlobalProxy(); 1755 } catch (RemoteException e) { 1756 return null; 1757 } 1758 } 1759 1760 /** 1761 * Get the HTTP proxy settings for the current default network. Note that 1762 * if a global proxy is set, it will override any per-network setting. 1763 * 1764 * @return the {@link ProxyInfo} for the current HTTP proxy, or {@code null} if no 1765 * HTTP proxy is active. 1766 * 1767 * <p>This method requires the call to hold the permission 1768 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1769 * {@hide} 1770 * @deprecated Deprecated in favor of {@link #getLinkProperties} 1771 */ 1772 public ProxyInfo getProxy() { 1773 try { 1774 return mService.getProxy(); 1775 } catch (RemoteException e) { 1776 return null; 1777 } 1778 } 1779 1780 /** 1781 * Sets a secondary requirement bit for the given networkType. 1782 * This requirement bit is generally under the control of the carrier 1783 * or its agents and is not directly controlled by the user. 1784 * 1785 * @param networkType The network who's dependence has changed 1786 * @param met Boolean - true if network use is OK, false if not 1787 * 1788 * <p>This method requires the call to hold the permission 1789 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL}. 1790 * {@hide} 1791 */ 1792 public void setDataDependency(int networkType, boolean met) { 1793 try { 1794 mService.setDataDependency(networkType, met); 1795 } catch (RemoteException e) { 1796 } 1797 } 1798 1799 /** 1800 * Returns true if the hardware supports the given network type 1801 * else it returns false. This doesn't indicate we have coverage 1802 * or are authorized onto a network, just whether or not the 1803 * hardware supports it. For example a GSM phone without a SIM 1804 * should still return {@code true} for mobile data, but a wifi only 1805 * tablet would return {@code false}. 1806 * 1807 * @param networkType The network type we'd like to check 1808 * @return {@code true} if supported, else {@code false} 1809 * 1810 * <p>This method requires the call to hold the permission 1811 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1812 * @hide 1813 */ 1814 public boolean isNetworkSupported(int networkType) { 1815 try { 1816 return mService.isNetworkSupported(networkType); 1817 } catch (RemoteException e) {} 1818 return false; 1819 } 1820 1821 /** 1822 * Returns if the currently active data network is metered. A network is 1823 * classified as metered when the user is sensitive to heavy data usage on 1824 * that connection due to monetary costs, data limitations or 1825 * battery/performance issues. You should check this before doing large 1826 * data transfers, and warn the user or delay the operation until another 1827 * network is available. 1828 * 1829 * @return {@code true} if large transfers should be avoided, otherwise 1830 * {@code false}. 1831 * 1832 * <p>This method requires the call to hold the permission 1833 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}. 1834 */ 1835 public boolean isActiveNetworkMetered() { 1836 try { 1837 return mService.isActiveNetworkMetered(); 1838 } catch (RemoteException e) { 1839 return false; 1840 } 1841 } 1842 1843 /** 1844 * If the LockdownVpn mechanism is enabled, updates the vpn 1845 * with a reload of its profile. 1846 * 1847 * @return a boolean with {@code} indicating success 1848 * 1849 * <p>This method can only be called by the system UID 1850 * {@hide} 1851 */ 1852 public boolean updateLockdownVpn() { 1853 try { 1854 return mService.updateLockdownVpn(); 1855 } catch (RemoteException e) { 1856 return false; 1857 } 1858 } 1859 1860 /** 1861 * Signal that the captive portal check on the indicated network 1862 * is complete and whether its a captive portal or not. 1863 * 1864 * @param info the {@link NetworkInfo} object for the networkType 1865 * in question. 1866 * @param isCaptivePortal true/false. 1867 * 1868 * <p>This method requires the call to hold the permission 1869 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL}. 1870 * {@hide} 1871 */ 1872 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 1873 try { 1874 mService.captivePortalCheckCompleted(info, isCaptivePortal); 1875 } catch (RemoteException e) { 1876 } 1877 } 1878 1879 /** 1880 * Supply the backend messenger for a network tracker 1881 * 1882 * @param networkType NetworkType to set 1883 * @param messenger {@link Messenger} 1884 * {@hide} 1885 */ 1886 public void supplyMessenger(int networkType, Messenger messenger) { 1887 try { 1888 mService.supplyMessenger(networkType, messenger); 1889 } catch (RemoteException e) { 1890 } 1891 } 1892 1893 /** 1894 * Check mobile provisioning. 1895 * 1896 * @param suggestedTimeOutMs, timeout in milliseconds 1897 * 1898 * @return time out that will be used, maybe less that suggestedTimeOutMs 1899 * -1 if an error. 1900 * 1901 * {@hide} 1902 */ 1903 public int checkMobileProvisioning(int suggestedTimeOutMs) { 1904 int timeOutMs = -1; 1905 try { 1906 timeOutMs = mService.checkMobileProvisioning(suggestedTimeOutMs); 1907 } catch (RemoteException e) { 1908 } 1909 return timeOutMs; 1910 } 1911 1912 /** 1913 * Get the mobile provisioning url. 1914 * {@hide} 1915 */ 1916 public String getMobileProvisioningUrl() { 1917 try { 1918 return mService.getMobileProvisioningUrl(); 1919 } catch (RemoteException e) { 1920 } 1921 return null; 1922 } 1923 1924 /** 1925 * Get the mobile redirected provisioning url. 1926 * {@hide} 1927 */ 1928 public String getMobileRedirectedProvisioningUrl() { 1929 try { 1930 return mService.getMobileRedirectedProvisioningUrl(); 1931 } catch (RemoteException e) { 1932 } 1933 return null; 1934 } 1935 1936 /** 1937 * get the information about a specific network link 1938 * @hide 1939 */ 1940 public LinkQualityInfo getLinkQualityInfo(int networkType) { 1941 try { 1942 LinkQualityInfo li = mService.getLinkQualityInfo(networkType); 1943 return li; 1944 } catch (RemoteException e) { 1945 return null; 1946 } 1947 } 1948 1949 /** 1950 * get the information of currently active network link 1951 * @hide 1952 */ 1953 public LinkQualityInfo getActiveLinkQualityInfo() { 1954 try { 1955 LinkQualityInfo li = mService.getActiveLinkQualityInfo(); 1956 return li; 1957 } catch (RemoteException e) { 1958 return null; 1959 } 1960 } 1961 1962 /** 1963 * get the information of all network links 1964 * @hide 1965 */ 1966 public LinkQualityInfo[] getAllLinkQualityInfo() { 1967 try { 1968 LinkQualityInfo[] li = mService.getAllLinkQualityInfo(); 1969 return li; 1970 } catch (RemoteException e) { 1971 return null; 1972 } 1973 } 1974 1975 /** 1976 * Set sign in error notification to visible or in visible 1977 * 1978 * @param visible 1979 * @param networkType 1980 * 1981 * {@hide} 1982 */ 1983 public void setProvisioningNotificationVisible(boolean visible, int networkType, 1984 String extraInfo, String url) { 1985 try { 1986 mService.setProvisioningNotificationVisible(visible, networkType, extraInfo, url); 1987 } catch (RemoteException e) { 1988 } 1989 } 1990 1991 /** 1992 * Set the value for enabling/disabling airplane mode 1993 * 1994 * @param enable whether to enable airplane mode or not 1995 * 1996 * <p>This method requires the call to hold the permission 1997 * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL}. 1998 * @hide 1999 */ 2000 public void setAirplaneMode(boolean enable) { 2001 try { 2002 mService.setAirplaneMode(enable); 2003 } catch (RemoteException e) { 2004 } 2005 } 2006 2007 /** {@hide} */ 2008 public void registerNetworkFactory(Messenger messenger, String name) { 2009 try { 2010 mService.registerNetworkFactory(messenger, name); 2011 } catch (RemoteException e) { } 2012 } 2013 2014 /** {@hide} */ 2015 public void unregisterNetworkFactory(Messenger messenger) { 2016 try { 2017 mService.unregisterNetworkFactory(messenger); 2018 } catch (RemoteException e) { } 2019 } 2020 2021 /** {@hide} */ 2022 public void registerNetworkAgent(Messenger messenger, NetworkInfo ni, LinkProperties lp, 2023 NetworkCapabilities nc, int score) { 2024 try { 2025 mService.registerNetworkAgent(messenger, ni, lp, nc, score); 2026 } catch (RemoteException e) { } 2027 } 2028 2029 /** 2030 * Base class for NetworkRequest callbacks. Used for notifications about network 2031 * changes. Should be extended by applications wanting notifications. 2032 */ 2033 public static class NetworkCallback { 2034 /** @hide */ 2035 public static final int PRECHECK = 1; 2036 /** @hide */ 2037 public static final int AVAILABLE = 2; 2038 /** @hide */ 2039 public static final int LOSING = 3; 2040 /** @hide */ 2041 public static final int LOST = 4; 2042 /** @hide */ 2043 public static final int UNAVAIL = 5; 2044 /** @hide */ 2045 public static final int CAP_CHANGED = 6; 2046 /** @hide */ 2047 public static final int PROP_CHANGED = 7; 2048 /** @hide */ 2049 public static final int CANCELED = 8; 2050 2051 /** 2052 * @hide 2053 * Called whenever the framework connects to a network that it may use to 2054 * satisfy this request 2055 */ 2056 public void onPreCheck(Network network) {} 2057 2058 /** 2059 * Called when the framework connects and has declared new network ready for use. 2060 * This callback may be called more than once if the {@link Network} that is 2061 * satisfying the request changes. 2062 * 2063 * @param network The {@link Network} of the satisfying network. 2064 */ 2065 public void onAvailable(Network network) {} 2066 2067 /** 2068 * Called when the network is about to be disconnected. Often paired with an 2069 * {@link NetworkCallback#onAvailable} call with the new replacement network 2070 * for graceful handover. This may not be called if we have a hard loss 2071 * (loss without warning). This may be followed by either a 2072 * {@link NetworkCallback#onLost} call or a 2073 * {@link NetworkCallback#onAvailable} call for this network depending 2074 * on whether we lose or regain it. 2075 * 2076 * @param network The {@link Network} that is about to be disconnected. 2077 * @param maxMsToLive The time in ms the framework will attempt to keep the 2078 * network connected. Note that the network may suffer a 2079 * hard loss at any time. 2080 */ 2081 public void onLosing(Network network, int maxMsToLive) {} 2082 2083 /** 2084 * Called when the framework has a hard loss of the network or when the 2085 * graceful failure ends. 2086 * 2087 * @param network The {@link Network} lost. 2088 */ 2089 public void onLost(Network network) {} 2090 2091 /** 2092 * Called if no network is found in the given timeout time. If no timeout is given, 2093 * this will not be called. 2094 * @hide 2095 */ 2096 public void onUnavailable() {} 2097 2098 /** 2099 * Called when the network the framework connected to for this request 2100 * changes capabilities but still satisfies the stated need. 2101 * 2102 * @param network The {@link Network} whose capabilities have changed. 2103 * @param networkCapabilities The new {@link NetworkCapabilities} for this network. 2104 */ 2105 public void onCapabilitiesChanged(Network network, 2106 NetworkCapabilities networkCapabilities) {} 2107 2108 /** 2109 * Called when the network the framework connected to for this request 2110 * changes {@link LinkProperties}. 2111 * 2112 * @param network The {@link Network} whose link properties have changed. 2113 * @param linkProperties The new {@link LinkProperties} for this network. 2114 */ 2115 public void onLinkPropertiesChanged(Network network, LinkProperties linkProperties) {} 2116 2117 private NetworkRequest networkRequest; 2118 } 2119 2120 private static final int BASE = Protocol.BASE_CONNECTIVITY_MANAGER; 2121 /** @hide obj = pair(NetworkRequest, Network) */ 2122 public static final int CALLBACK_PRECHECK = BASE + 1; 2123 /** @hide obj = pair(NetworkRequest, Network) */ 2124 public static final int CALLBACK_AVAILABLE = BASE + 2; 2125 /** @hide obj = pair(NetworkRequest, Network), arg1 = ttl */ 2126 public static final int CALLBACK_LOSING = BASE + 3; 2127 /** @hide obj = pair(NetworkRequest, Network) */ 2128 public static final int CALLBACK_LOST = BASE + 4; 2129 /** @hide obj = NetworkRequest */ 2130 public static final int CALLBACK_UNAVAIL = BASE + 5; 2131 /** @hide obj = pair(NetworkRequest, Network) */ 2132 public static final int CALLBACK_CAP_CHANGED = BASE + 6; 2133 /** @hide obj = pair(NetworkRequest, Network) */ 2134 public static final int CALLBACK_IP_CHANGED = BASE + 7; 2135 /** @hide obj = NetworkRequest */ 2136 public static final int CALLBACK_RELEASED = BASE + 8; 2137 /** @hide */ 2138 public static final int CALLBACK_EXIT = BASE + 9; 2139 /** @hide obj = NetworkCapabilities, arg1 = seq number */ 2140 private static final int EXPIRE_LEGACY_REQUEST = BASE + 10; 2141 2142 private class CallbackHandler extends Handler { 2143 private final HashMap<NetworkRequest, NetworkCallback>mCallbackMap; 2144 private final AtomicInteger mRefCount; 2145 private static final String TAG = "ConnectivityManager.CallbackHandler"; 2146 private final ConnectivityManager mCm; 2147 2148 CallbackHandler(Looper looper, HashMap<NetworkRequest, NetworkCallback>callbackMap, 2149 AtomicInteger refCount, ConnectivityManager cm) { 2150 super(looper); 2151 mCallbackMap = callbackMap; 2152 mRefCount = refCount; 2153 mCm = cm; 2154 } 2155 2156 @Override 2157 public void handleMessage(Message message) { 2158 Log.d(TAG, "CM callback handler got msg " + message.what); 2159 switch (message.what) { 2160 case CALLBACK_PRECHECK: { 2161 NetworkRequest request = getNetworkRequest(message); 2162 NetworkCallback callbacks = getCallbacks(request); 2163 if (callbacks != null) { 2164 callbacks.onPreCheck(getNetwork(message)); 2165 } else { 2166 Log.e(TAG, "callback not found for PRECHECK message"); 2167 } 2168 break; 2169 } 2170 case CALLBACK_AVAILABLE: { 2171 NetworkRequest request = getNetworkRequest(message); 2172 NetworkCallback callbacks = getCallbacks(request); 2173 if (callbacks != null) { 2174 callbacks.onAvailable(getNetwork(message)); 2175 } else { 2176 Log.e(TAG, "callback not found for AVAILABLE message"); 2177 } 2178 break; 2179 } 2180 case CALLBACK_LOSING: { 2181 NetworkRequest request = getNetworkRequest(message); 2182 NetworkCallback callbacks = getCallbacks(request); 2183 if (callbacks != null) { 2184 callbacks.onLosing(getNetwork(message), message.arg1); 2185 } else { 2186 Log.e(TAG, "callback not found for LOSING message"); 2187 } 2188 break; 2189 } 2190 case CALLBACK_LOST: { 2191 NetworkRequest request = getNetworkRequest(message); 2192 NetworkCallback callbacks = getCallbacks(request); 2193 if (callbacks != null) { 2194 callbacks.onLost(getNetwork(message)); 2195 } else { 2196 Log.e(TAG, "callback not found for LOST message"); 2197 } 2198 break; 2199 } 2200 case CALLBACK_UNAVAIL: { 2201 NetworkRequest req = (NetworkRequest)message.obj; 2202 NetworkCallback callbacks = null; 2203 synchronized(mCallbackMap) { 2204 callbacks = mCallbackMap.get(req); 2205 } 2206 if (callbacks != null) { 2207 callbacks.onUnavailable(); 2208 } else { 2209 Log.e(TAG, "callback not found for UNAVAIL message"); 2210 } 2211 break; 2212 } 2213 case CALLBACK_CAP_CHANGED: { 2214 NetworkRequest request = getNetworkRequest(message); 2215 NetworkCallback callbacks = getCallbacks(request); 2216 if (callbacks != null) { 2217 Network network = getNetwork(message); 2218 NetworkCapabilities cap = mCm.getNetworkCapabilities(network); 2219 2220 callbacks.onCapabilitiesChanged(network, cap); 2221 } else { 2222 Log.e(TAG, "callback not found for CHANGED message"); 2223 } 2224 break; 2225 } 2226 case CALLBACK_IP_CHANGED: { 2227 NetworkRequest request = getNetworkRequest(message); 2228 NetworkCallback callbacks = getCallbacks(request); 2229 if (callbacks != null) { 2230 Network network = getNetwork(message); 2231 LinkProperties lp = mCm.getLinkProperties(network); 2232 2233 callbacks.onLinkPropertiesChanged(network, lp); 2234 } else { 2235 Log.e(TAG, "callback not found for CHANGED message"); 2236 } 2237 break; 2238 } 2239 case CALLBACK_RELEASED: { 2240 NetworkRequest req = (NetworkRequest)message.obj; 2241 NetworkCallback callbacks = null; 2242 synchronized(mCallbackMap) { 2243 callbacks = mCallbackMap.remove(req); 2244 } 2245 if (callbacks != null) { 2246 synchronized(mRefCount) { 2247 if (mRefCount.decrementAndGet() == 0) { 2248 getLooper().quit(); 2249 } 2250 } 2251 } else { 2252 Log.e(TAG, "callback not found for CANCELED message"); 2253 } 2254 break; 2255 } 2256 case CALLBACK_EXIT: { 2257 Log.d(TAG, "Listener quiting"); 2258 getLooper().quit(); 2259 break; 2260 } 2261 case EXPIRE_LEGACY_REQUEST: { 2262 expireRequest((NetworkCapabilities)message.obj, message.arg1); 2263 break; 2264 } 2265 } 2266 } 2267 2268 private NetworkRequest getNetworkRequest(Message msg) { 2269 return (NetworkRequest)(msg.obj); 2270 } 2271 private NetworkCallback getCallbacks(NetworkRequest req) { 2272 synchronized(mCallbackMap) { 2273 return mCallbackMap.get(req); 2274 } 2275 } 2276 private Network getNetwork(Message msg) { 2277 return new Network(msg.arg2); 2278 } 2279 private NetworkCallback removeCallbacks(Message msg) { 2280 NetworkRequest req = (NetworkRequest)msg.obj; 2281 synchronized(mCallbackMap) { 2282 return mCallbackMap.remove(req); 2283 } 2284 } 2285 } 2286 2287 private void incCallbackHandlerRefCount() { 2288 synchronized(sCallbackRefCount) { 2289 if (sCallbackRefCount.incrementAndGet() == 1) { 2290 // TODO - switch this over to a ManagerThread or expire it when done 2291 HandlerThread callbackThread = new HandlerThread("ConnectivityManager"); 2292 callbackThread.start(); 2293 sCallbackHandler = new CallbackHandler(callbackThread.getLooper(), 2294 sNetworkCallback, sCallbackRefCount, this); 2295 } 2296 } 2297 } 2298 2299 private void decCallbackHandlerRefCount() { 2300 synchronized(sCallbackRefCount) { 2301 if (sCallbackRefCount.decrementAndGet() == 0) { 2302 sCallbackHandler.obtainMessage(CALLBACK_EXIT).sendToTarget(); 2303 sCallbackHandler = null; 2304 } 2305 } 2306 } 2307 2308 static final HashMap<NetworkRequest, NetworkCallback> sNetworkCallback = 2309 new HashMap<NetworkRequest, NetworkCallback>(); 2310 static final AtomicInteger sCallbackRefCount = new AtomicInteger(0); 2311 static CallbackHandler sCallbackHandler = null; 2312 2313 private final static int LISTEN = 1; 2314 private final static int REQUEST = 2; 2315 2316 private NetworkRequest sendRequestForNetwork(NetworkCapabilities need, 2317 NetworkCallback networkCallback, int timeoutSec, int action, 2318 int legacyType) { 2319 if (networkCallback == null) { 2320 throw new IllegalArgumentException("null NetworkCallback"); 2321 } 2322 if (need == null) throw new IllegalArgumentException("null NetworkCapabilities"); 2323 try { 2324 incCallbackHandlerRefCount(); 2325 synchronized(sNetworkCallback) { 2326 if (action == LISTEN) { 2327 networkCallback.networkRequest = mService.listenForNetwork(need, 2328 new Messenger(sCallbackHandler), new Binder()); 2329 } else { 2330 networkCallback.networkRequest = mService.requestNetwork(need, 2331 new Messenger(sCallbackHandler), timeoutSec, new Binder(), legacyType); 2332 } 2333 if (networkCallback.networkRequest != null) { 2334 sNetworkCallback.put(networkCallback.networkRequest, networkCallback); 2335 } 2336 } 2337 } catch (RemoteException e) {} 2338 if (networkCallback.networkRequest == null) decCallbackHandlerRefCount(); 2339 return networkCallback.networkRequest; 2340 } 2341 2342 /** 2343 * Request a network to satisfy a set of {@link NetworkCapabilities}. 2344 * 2345 * This {@link NetworkRequest} will live until released via 2346 * {@link #unregisterNetworkCallback} or the calling application exits. 2347 * Status of the request can be followed by listening to the various 2348 * callbacks described in {@link NetworkCallback}. The {@link Network} 2349 * can be used to direct traffic to the network. 2350 * 2351 * @param request {@link NetworkRequest} describing this request. 2352 * @param networkCallback The {@link NetworkCallback} to be utilized for this 2353 * request. Note the callback must not be shared - they 2354 * uniquely specify this request. 2355 */ 2356 public void requestNetwork(NetworkRequest request, NetworkCallback networkCallback) { 2357 sendRequestForNetwork(request.networkCapabilities, networkCallback, 0, 2358 REQUEST, TYPE_NONE); 2359 } 2360 2361 /** 2362 * Request a network to satisfy a set of {@link NetworkCapabilities}, limited 2363 * by a timeout. 2364 * 2365 * This function behaves identically to the non-timedout version, but if a suitable 2366 * network is not found within the given time (in milliseconds) the 2367 * {@link NetworkCallback#unavailable} callback is called. The request must 2368 * still be released normally by calling {@link releaseNetworkRequest}. 2369 * @param request {@link NetworkRequest} describing this request. 2370 * @param networkCallback The callbacks to be utilized for this request. Note 2371 * the callbacks must not be shared - they uniquely specify 2372 * this request. 2373 * @param timeoutMs The time in milliseconds to attempt looking for a suitable network 2374 * before {@link NetworkCallback#unavailable} is called. 2375 * @hide 2376 */ 2377 public void requestNetwork(NetworkRequest request, NetworkCallback networkCallback, 2378 int timeoutMs) { 2379 sendRequestForNetwork(request.networkCapabilities, networkCallback, timeoutMs, 2380 REQUEST, TYPE_NONE); 2381 } 2382 2383 /** 2384 * The maximum number of milliseconds the framework will look for a suitable network 2385 * during a timeout-equiped call to {@link requestNetwork}. 2386 * {@hide} 2387 */ 2388 public final static int MAX_NETWORK_REQUEST_TIMEOUT_MS = 100 * 60 * 1000; 2389 2390 /** 2391 * The lookup key for a {@link Network} object included with the intent after 2392 * succesfully finding a network for the applications request. Retrieve it with 2393 * {@link android.content.Intent#getParcelableExtra(String)}. 2394 * @hide 2395 */ 2396 public static final String EXTRA_NETWORK_REQUEST_NETWORK = "networkRequestNetwork"; 2397 2398 /** 2399 * The lookup key for a {@link NetworkRequest} object included with the intent after 2400 * succesfully finding a network for the applications request. Retrieve it with 2401 * {@link android.content.Intent#getParcelableExtra(String)}. 2402 * @hide 2403 */ 2404 public static final String EXTRA_NETWORK_REQUEST_NETWORK_REQUEST = 2405 "networkRequestNetworkRequest"; 2406 2407 2408 /** 2409 * Request a network to satisfy a set of {@link NetworkCapabilities}. 2410 * 2411 * This function behavies identically to the version that takes a NetworkCallback, but instead 2412 * of {@link NetworkCallback} a {@link PendingIntent} is used. This means 2413 * the request may outlive the calling application and get called back when a suitable 2414 * network is found. 2415 * <p> 2416 * The operation is an Intent broadcast that goes to a broadcast receiver that 2417 * you registered with {@link Context#registerReceiver} or through the 2418 * <receiver> tag in an AndroidManifest.xml file 2419 * <p> 2420 * The operation Intent is delivered with two extras, a {@link Network} typed 2421 * extra called {@link #EXTRA_NETWORK_REQUEST_NETWORK} and a {@link NetworkRequest} 2422 * typed extra called {@link #EXTRA_NETWORK_REQUEST_NETWORK_REQUEST} containing 2423 * the original requests parameters. It is important to create a new, 2424 * {@link NetworkCallback} based request before completing the processing of the 2425 * Intent to reserve the network or it will be released shortly after the Intent 2426 * is processed. 2427 * <p> 2428 * If there is already an request for this Intent registered (with the equality of 2429 * two Intents defined by {@link Intent#filterEquals}), then it will be removed and 2430 * replaced by this one, effectively releasing the previous {@link NetworkRequest}. 2431 * <p> 2432 * The request may be released normally by calling {@link #unregisterNetworkCallback}. 2433 * 2434 * @param request {@link NetworkRequest} describing this request. 2435 * @param operation Action to perform when the network is available (corresponds 2436 * to the {@link NetworkCallback#onAvailable} call. Typically 2437 * comes from {@link PendingIntent#getBroadcast}. 2438 * @hide 2439 */ 2440 public void requestNetwork(NetworkRequest request, PendingIntent operation) { 2441 try { 2442 mService.pendingRequestForNetwork(request.networkCapabilities, operation); 2443 } catch (RemoteException e) {} 2444 } 2445 2446 /** 2447 * Registers to receive notifications about all networks which satisfy the given 2448 * {@link NetworkRequest}. The callbacks will continue to be called until 2449 * either the application exits or {@link #unregisterNetworkCallback} is called 2450 * 2451 * @param request {@link NetworkRequest} describing this request. 2452 * @param networkCallback The {@link NetworkCallback} that the system will call as suitable 2453 * networks change state. 2454 */ 2455 public void registerNetworkCallback(NetworkRequest request, NetworkCallback networkCallback) { 2456 sendRequestForNetwork(request.networkCapabilities, networkCallback, 0, LISTEN, TYPE_NONE); 2457 } 2458 2459 /** 2460 * Unregisters callbacks about and possibly releases networks originating from 2461 * {@link #requestNetwork} and {@link #registerNetworkCallback} calls. If the 2462 * given {@code NetworkCallback} had previosuly been used with {@code #requestNetwork}, 2463 * any networks that had been connected to only to satisfy that request will be 2464 * disconnected. 2465 * 2466 * @param networkCallback The {@link NetworkCallback} used when making the request. 2467 */ 2468 public void unregisterNetworkCallback(NetworkCallback networkCallback) { 2469 if (networkCallback == null || networkCallback.networkRequest == null || 2470 networkCallback.networkRequest.requestId == REQUEST_ID_UNSET) { 2471 throw new IllegalArgumentException("Invalid NetworkCallback"); 2472 } 2473 try { 2474 mService.releaseNetworkRequest(networkCallback.networkRequest); 2475 } catch (RemoteException e) {} 2476 } 2477 2478 /** 2479 * Binds the current process to {@code network}. All Sockets created in the future 2480 * (and not explicitly bound via a bound SocketFactory from 2481 * {@link Network#getSocketFactory() Network.getSocketFactory()}) will be bound to 2482 * {@code network}. All host name resolutions will be limited to {@code network} as well. 2483 * Note that if {@code network} ever disconnects, all Sockets created in this way will cease to 2484 * work and all host name resolutions will fail. This is by design so an application doesn't 2485 * accidentally use Sockets it thinks are still bound to a particular {@link Network}. 2486 * To clear binding pass {@code null} for {@code network}. Using individually bound 2487 * Sockets created by Network.getSocketFactory().createSocket() and 2488 * performing network-specific host name resolutions via 2489 * {@link Network#getAllByName Network.getAllByName} is preferred to calling 2490 * {@code setProcessDefaultNetwork}. 2491 * 2492 * @param network The {@link Network} to bind the current process to, or {@code null} to clear 2493 * the current binding. 2494 * @return {@code true} on success, {@code false} if the {@link Network} is no longer valid. 2495 */ 2496 public static boolean setProcessDefaultNetwork(Network network) { 2497 if (network == null) { 2498 return NetworkUtils.unbindProcessToNetwork(); 2499 } else { 2500 return NetworkUtils.bindProcessToNetwork(network.netId); 2501 } 2502 } 2503 2504 /** 2505 * Returns the {@link Network} currently bound to this process via 2506 * {@link #setProcessDefaultNetwork}, or {@code null} if no {@link Network} is explicitly bound. 2507 * 2508 * @return {@code Network} to which this process is bound, or {@code null}. 2509 */ 2510 public static Network getProcessDefaultNetwork() { 2511 int netId = NetworkUtils.getNetworkBoundToProcess(); 2512 if (netId == 0) return null; 2513 return new Network(netId); 2514 } 2515 2516 /** 2517 * Binds host resolutions performed by this process to {@code network}. 2518 * {@link #setProcessDefaultNetwork} takes precedence over this setting. 2519 * 2520 * @param network The {@link Network} to bind host resolutions from the current process to, or 2521 * {@code null} to clear the current binding. 2522 * @return {@code true} on success, {@code false} if the {@link Network} is no longer valid. 2523 * @hide 2524 * @deprecated This is strictly for legacy usage to support {@link #startUsingNetworkFeature}. 2525 */ 2526 public static boolean setProcessDefaultNetworkForHostResolution(Network network) { 2527 if (network == null) { 2528 return NetworkUtils.unbindProcessToNetworkForHostResolution(); 2529 } else { 2530 return NetworkUtils.bindProcessToNetworkForHostResolution(network.netId); 2531 } 2532 } 2533} 2534