ConnectivityService.java revision b90b20b5d57809da5c91bac9ff45c2ac323d9637
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 */ 16 17package com.android.server; 18 19import static android.Manifest.permission.MANAGE_NETWORK_POLICY; 20import static android.Manifest.permission.RECEIVE_DATA_ACTIVITY_CHANGE; 21import static android.net.ConnectivityManager.CONNECTIVITY_ACTION; 22import static android.net.ConnectivityManager.CONNECTIVITY_ACTION_IMMEDIATE; 23import static android.net.ConnectivityManager.NetworkCallbackListener; 24import static android.net.ConnectivityManager.TYPE_BLUETOOTH; 25import static android.net.ConnectivityManager.TYPE_DUMMY; 26import static android.net.ConnectivityManager.TYPE_MOBILE; 27import static android.net.ConnectivityManager.TYPE_MOBILE_MMS; 28import static android.net.ConnectivityManager.TYPE_MOBILE_SUPL; 29import static android.net.ConnectivityManager.TYPE_MOBILE_DUN; 30import static android.net.ConnectivityManager.TYPE_MOBILE_FOTA; 31import static android.net.ConnectivityManager.TYPE_MOBILE_IMS; 32import static android.net.ConnectivityManager.TYPE_MOBILE_CBS; 33import static android.net.ConnectivityManager.TYPE_MOBILE_IA; 34import static android.net.ConnectivityManager.TYPE_MOBILE_HIPRI; 35import static android.net.ConnectivityManager.TYPE_NONE; 36import static android.net.ConnectivityManager.TYPE_WIFI; 37import static android.net.ConnectivityManager.TYPE_WIMAX; 38import static android.net.ConnectivityManager.TYPE_PROXY; 39import static android.net.ConnectivityManager.getNetworkTypeName; 40import static android.net.ConnectivityManager.isNetworkTypeValid; 41import static android.net.NetworkPolicyManager.RULE_ALLOW_ALL; 42import static android.net.NetworkPolicyManager.RULE_REJECT_METERED; 43 44import android.app.AlarmManager; 45import android.app.AppOpsManager; 46import android.app.Notification; 47import android.app.NotificationManager; 48import android.app.PendingIntent; 49import android.bluetooth.BluetoothTetheringDataTracker; 50import android.content.ActivityNotFoundException; 51import android.content.BroadcastReceiver; 52import android.content.ContentResolver; 53import android.content.Context; 54import android.content.ContextWrapper; 55import android.content.Intent; 56import android.content.IntentFilter; 57import android.content.pm.ApplicationInfo; 58import android.content.pm.PackageManager; 59import android.content.pm.PackageManager.NameNotFoundException; 60import android.content.res.Configuration; 61import android.content.res.Resources; 62import android.database.ContentObserver; 63import android.net.CaptivePortalTracker; 64import android.net.ConnectivityManager; 65import android.net.DummyDataStateTracker; 66import android.net.IConnectivityManager; 67import android.net.INetworkManagementEventObserver; 68import android.net.INetworkPolicyListener; 69import android.net.INetworkPolicyManager; 70import android.net.INetworkStatsService; 71import android.net.LinkAddress; 72import android.net.LinkProperties; 73import android.net.LinkProperties.CompareResult; 74import android.net.LinkQualityInfo; 75import android.net.MobileDataStateTracker; 76import android.net.Network; 77import android.net.NetworkAgent; 78import android.net.NetworkCapabilities; 79import android.net.NetworkConfig; 80import android.net.NetworkInfo; 81import android.net.NetworkInfo.DetailedState; 82import android.net.NetworkFactory; 83import android.net.NetworkQuotaInfo; 84import android.net.NetworkRequest; 85import android.net.NetworkState; 86import android.net.NetworkStateTracker; 87import android.net.NetworkUtils; 88import android.net.Proxy; 89import android.net.ProxyDataTracker; 90import android.net.ProxyInfo; 91import android.net.RouteInfo; 92import android.net.SamplingDataTracker; 93import android.net.Uri; 94import android.net.wimax.WimaxManagerConstants; 95import android.os.AsyncTask; 96import android.os.Binder; 97import android.os.Build; 98import android.os.FileUtils; 99import android.os.Handler; 100import android.os.HandlerThread; 101import android.os.IBinder; 102import android.os.INetworkManagementService; 103import android.os.Looper; 104import android.os.Message; 105import android.os.Messenger; 106import android.os.ParcelFileDescriptor; 107import android.os.PowerManager; 108import android.os.Process; 109import android.os.RemoteException; 110import android.os.ServiceManager; 111import android.os.SystemClock; 112import android.os.SystemProperties; 113import android.os.UserHandle; 114import android.provider.Settings; 115import android.security.Credentials; 116import android.security.KeyStore; 117import android.telephony.TelephonyManager; 118import android.text.TextUtils; 119import android.util.Slog; 120import android.util.SparseArray; 121import android.util.SparseIntArray; 122import android.util.Xml; 123 124import com.android.internal.R; 125import com.android.internal.annotations.GuardedBy; 126import com.android.internal.net.LegacyVpnInfo; 127import com.android.internal.net.VpnConfig; 128import com.android.internal.net.VpnProfile; 129import com.android.internal.telephony.DctConstants; 130import com.android.internal.telephony.Phone; 131import com.android.internal.telephony.PhoneConstants; 132import com.android.internal.telephony.TelephonyIntents; 133import com.android.internal.util.AsyncChannel; 134import com.android.internal.util.IndentingPrintWriter; 135import com.android.internal.util.XmlUtils; 136import com.android.server.am.BatteryStatsService; 137import com.android.server.connectivity.DataConnectionStats; 138import com.android.server.connectivity.Nat464Xlat; 139import com.android.server.connectivity.NetworkAgentInfo; 140import com.android.server.connectivity.NetworkMonitor; 141import com.android.server.connectivity.PacManager; 142import com.android.server.connectivity.Tethering; 143import com.android.server.connectivity.Vpn; 144import com.android.server.net.BaseNetworkObserver; 145import com.android.server.net.LockdownVpnTracker; 146import com.google.android.collect.Lists; 147import com.google.android.collect.Sets; 148 149import dalvik.system.DexClassLoader; 150 151import org.xmlpull.v1.XmlPullParser; 152import org.xmlpull.v1.XmlPullParserException; 153 154import java.io.File; 155import java.io.FileDescriptor; 156import java.io.FileNotFoundException; 157import java.io.FileReader; 158import java.io.IOException; 159import java.io.PrintWriter; 160import java.lang.reflect.Constructor; 161import java.net.HttpURLConnection; 162import java.net.Inet4Address; 163import java.net.Inet6Address; 164import java.net.InetAddress; 165import java.net.URL; 166import java.net.UnknownHostException; 167import java.util.ArrayList; 168import java.util.Arrays; 169import java.util.Collection; 170import java.util.GregorianCalendar; 171import java.util.HashMap; 172import java.util.HashSet; 173import java.util.List; 174import java.util.Map; 175import java.util.Random; 176import java.util.concurrent.atomic.AtomicBoolean; 177import java.util.concurrent.atomic.AtomicInteger; 178 179import javax.net.ssl.HostnameVerifier; 180import javax.net.ssl.HttpsURLConnection; 181import javax.net.ssl.SSLSession; 182 183import static android.net.ConnectivityManager.INVALID_NET_ID; 184 185/** 186 * @hide 187 */ 188public class ConnectivityService extends IConnectivityManager.Stub { 189 private static final String TAG = "ConnectivityService"; 190 191 private static final boolean DBG = true; 192 private static final boolean VDBG = true; // STOPSHIP 193 194 // network sampling debugging 195 private static final boolean SAMPLE_DBG = false; 196 197 private static final boolean LOGD_RULES = false; 198 199 // TODO: create better separation between radio types and network types 200 201 // how long to wait before switching back to a radio's default network 202 private static final int RESTORE_DEFAULT_NETWORK_DELAY = 1 * 60 * 1000; 203 // system property that can override the above value 204 private static final String NETWORK_RESTORE_DELAY_PROP_NAME = 205 "android.telephony.apn-restore"; 206 207 // Default value if FAIL_FAST_TIME_MS is not set 208 private static final int DEFAULT_FAIL_FAST_TIME_MS = 1 * 60 * 1000; 209 // system property that can override DEFAULT_FAIL_FAST_TIME_MS 210 private static final String FAIL_FAST_TIME_MS = 211 "persist.radio.fail_fast_time_ms"; 212 213 private static final String ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED = 214 "android.net.ConnectivityService.action.PKT_CNT_SAMPLE_INTERVAL_ELAPSED"; 215 216 private static final int SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE = 0; 217 218 private PendingIntent mSampleIntervalElapsedIntent; 219 220 // Set network sampling interval at 12 minutes, this way, even if the timers get 221 // aggregated, it will fire at around 15 minutes, which should allow us to 222 // aggregate this timer with other timers (specially the socket keep alive timers) 223 private static final int DEFAULT_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 12 * 60); 224 225 // start network sampling a minute after booting ... 226 private static final int DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 60); 227 228 AlarmManager mAlarmManager; 229 230 // used in recursive route setting to add gateways for the host for which 231 // a host route was requested. 232 private static final int MAX_HOSTROUTE_CYCLE_COUNT = 10; 233 234 private Tethering mTethering; 235 236 private KeyStore mKeyStore; 237 238 @GuardedBy("mVpns") 239 private final SparseArray<Vpn> mVpns = new SparseArray<Vpn>(); 240 private VpnCallback mVpnCallback = new VpnCallback(); 241 242 private boolean mLockdownEnabled; 243 private LockdownVpnTracker mLockdownTracker; 244 245 private Nat464Xlat mClat; 246 247 /** Lock around {@link #mUidRules} and {@link #mMeteredIfaces}. */ 248 private Object mRulesLock = new Object(); 249 /** Currently active network rules by UID. */ 250 private SparseIntArray mUidRules = new SparseIntArray(); 251 /** Set of ifaces that are costly. */ 252 private HashSet<String> mMeteredIfaces = Sets.newHashSet(); 253 254 /** 255 * Sometimes we want to refer to the individual network state 256 * trackers separately, and sometimes we just want to treat them 257 * abstractly. 258 */ 259 private NetworkStateTracker mNetTrackers[]; 260 261 /* Handles captive portal check on a network */ 262 private CaptivePortalTracker mCaptivePortalTracker; 263 264 /** 265 * The link properties that define the current links 266 */ 267 private LinkProperties mCurrentLinkProperties[]; 268 269 /** 270 * A per Net list of the PID's that requested access to the net 271 * used both as a refcount and for per-PID DNS selection 272 */ 273 private List<Integer> mNetRequestersPids[]; 274 275 // priority order of the nettrackers 276 // (excluding dynamically set mNetworkPreference) 277 // TODO - move mNetworkTypePreference into this 278 private int[] mPriorityList; 279 280 private Context mContext; 281 private int mNetworkPreference; 282 private int mActiveDefaultNetwork = -1; 283 // 0 is full bad, 100 is full good 284 private int mDefaultInetCondition = 0; 285 private int mDefaultInetConditionPublished = 0; 286 private boolean mInetConditionChangeInFlight = false; 287 private int mDefaultConnectionSequence = 0; 288 289 private Object mDnsLock = new Object(); 290 private int mNumDnsEntries; 291 292 private boolean mTestMode; 293 private static ConnectivityService sServiceInstance; 294 295 private INetworkManagementService mNetd; 296 private INetworkPolicyManager mPolicyManager; 297 298 private static final int ENABLED = 1; 299 private static final int DISABLED = 0; 300 301 private static final boolean ADD = true; 302 private static final boolean REMOVE = false; 303 304 private static final boolean TO_DEFAULT_TABLE = true; 305 private static final boolean TO_SECONDARY_TABLE = false; 306 307 private static final boolean EXEMPT = true; 308 private static final boolean UNEXEMPT = false; 309 310 /** 311 * used internally as a delayed event to make us switch back to the 312 * default network 313 */ 314 private static final int EVENT_RESTORE_DEFAULT_NETWORK = 1; 315 316 /** 317 * used internally to change our mobile data enabled flag 318 */ 319 private static final int EVENT_CHANGE_MOBILE_DATA_ENABLED = 2; 320 321 /** 322 * used internally to synchronize inet condition reports 323 * arg1 = networkType 324 * arg2 = condition (0 bad, 100 good) 325 */ 326 private static final int EVENT_INET_CONDITION_CHANGE = 4; 327 328 /** 329 * used internally to mark the end of inet condition hold periods 330 * arg1 = networkType 331 */ 332 private static final int EVENT_INET_CONDITION_HOLD_END = 5; 333 334 /** 335 * used internally to clear a wakelock when transitioning 336 * from one net to another 337 */ 338 private static final int EVENT_CLEAR_NET_TRANSITION_WAKELOCK = 8; 339 340 /** 341 * used internally to reload global proxy settings 342 */ 343 private static final int EVENT_APPLY_GLOBAL_HTTP_PROXY = 9; 344 345 /** 346 * used internally to set external dependency met/unmet 347 * arg1 = ENABLED (met) or DISABLED (unmet) 348 * arg2 = NetworkType 349 */ 350 private static final int EVENT_SET_DEPENDENCY_MET = 10; 351 352 /** 353 * used internally to send a sticky broadcast delayed. 354 */ 355 private static final int EVENT_SEND_STICKY_BROADCAST_INTENT = 11; 356 357 /** 358 * Used internally to 359 * {@link NetworkStateTracker#setPolicyDataEnable(boolean)}. 360 */ 361 private static final int EVENT_SET_POLICY_DATA_ENABLE = 12; 362 363 private static final int EVENT_VPN_STATE_CHANGED = 13; 364 365 /** 366 * Used internally to disable fail fast of mobile data 367 */ 368 private static final int EVENT_ENABLE_FAIL_FAST_MOBILE_DATA = 14; 369 370 /** 371 * used internally to indicate that data sampling interval is up 372 */ 373 private static final int EVENT_SAMPLE_INTERVAL_ELAPSED = 15; 374 375 /** 376 * PAC manager has received new port. 377 */ 378 private static final int EVENT_PROXY_HAS_CHANGED = 16; 379 380 /** 381 * used internally when registering NetworkFactories 382 * obj = NetworkFactoryInfo 383 */ 384 private static final int EVENT_REGISTER_NETWORK_FACTORY = 17; 385 386 /** 387 * used internally when registering NetworkAgents 388 * obj = Messenger 389 */ 390 private static final int EVENT_REGISTER_NETWORK_AGENT = 18; 391 392 /** 393 * used to add a network request 394 * includes a NetworkRequestInfo 395 */ 396 private static final int EVENT_REGISTER_NETWORK_REQUEST = 19; 397 398 /** 399 * indicates a timeout period is over - check if we had a network yet or not 400 * and if not, call the timeout calback (but leave the request live until they 401 * cancel it. 402 * includes a NetworkRequestInfo 403 */ 404 private static final int EVENT_TIMEOUT_NETWORK_REQUEST = 20; 405 406 /** 407 * used to add a network listener - no request 408 * includes a NetworkRequestInfo 409 */ 410 private static final int EVENT_REGISTER_NETWORK_LISTENER = 21; 411 412 /** 413 * used to remove a network request, either a listener or a real request 414 * includes a NetworkRequest 415 */ 416 private static final int EVENT_RELEASE_NETWORK_REQUEST = 22; 417 418 /** 419 * used internally when registering NetworkFactories 420 * obj = Messenger 421 */ 422 private static final int EVENT_UNREGISTER_NETWORK_FACTORY = 23; 423 424 425 /** Handler used for internal events. */ 426 final private InternalHandler mHandler; 427 /** Handler used for incoming {@link NetworkStateTracker} events. */ 428 final private NetworkStateTrackerHandler mTrackerHandler; 429 430 // list of DeathRecipients used to make sure features are turned off when 431 // a process dies 432 private List<FeatureUser> mFeatureUsers; 433 434 private boolean mSystemReady; 435 private Intent mInitialBroadcast; 436 437 private PowerManager.WakeLock mNetTransitionWakeLock; 438 private String mNetTransitionWakeLockCausedBy = ""; 439 private int mNetTransitionWakeLockSerialNumber; 440 private int mNetTransitionWakeLockTimeout; 441 442 private InetAddress mDefaultDns; 443 444 // Lock for protecting access to mAddedRoutes and mExemptAddresses 445 private final Object mRoutesLock = new Object(); 446 447 // this collection is used to refcount the added routes - if there are none left 448 // it's time to remove the route from the route table 449 @GuardedBy("mRoutesLock") 450 private Collection<RouteInfo> mAddedRoutes = new ArrayList<RouteInfo>(); 451 452 // this collection corresponds to the entries of mAddedRoutes that have routing exemptions 453 // used to handle cleanup of exempt rules 454 @GuardedBy("mRoutesLock") 455 private Collection<LinkAddress> mExemptAddresses = new ArrayList<LinkAddress>(); 456 457 // used in DBG mode to track inet condition reports 458 private static final int INET_CONDITION_LOG_MAX_SIZE = 15; 459 private ArrayList mInetLog; 460 461 // track the current default http proxy - tell the world if we get a new one (real change) 462 private ProxyInfo mDefaultProxy = null; 463 private Object mProxyLock = new Object(); 464 private boolean mDefaultProxyDisabled = false; 465 466 // track the global proxy. 467 private ProxyInfo mGlobalProxy = null; 468 469 private PacManager mPacManager = null; 470 471 private SettingsObserver mSettingsObserver; 472 473 private AppOpsManager mAppOpsManager; 474 475 NetworkConfig[] mNetConfigs; 476 int mNetworksDefined; 477 478 private static class RadioAttributes { 479 public int mSimultaneity; 480 public int mType; 481 public RadioAttributes(String init) { 482 String fragments[] = init.split(","); 483 mType = Integer.parseInt(fragments[0]); 484 mSimultaneity = Integer.parseInt(fragments[1]); 485 } 486 } 487 RadioAttributes[] mRadioAttributes; 488 489 // the set of network types that can only be enabled by system/sig apps 490 List mProtectedNetworks; 491 492 private DataConnectionStats mDataConnectionStats; 493 494 private AtomicInteger mEnableFailFastMobileDataTag = new AtomicInteger(0); 495 496 TelephonyManager mTelephonyManager; 497 498 // sequence number for Networks 499 private final static int MIN_NET_ID = 10; // some reserved marks 500 private final static int MAX_NET_ID = 65535; 501 private int mNextNetId = MIN_NET_ID; 502 503 // sequence number of NetworkRequests 504 private int mNextNetworkRequestId = 1; 505 506 private static final int UID_UNUSED = -1; 507 508 /** 509 * Implements support for the legacy "one network per network type" model. 510 * 511 * We used to have a static array of NetworkStateTrackers, one for each 512 * network type, but that doesn't work any more now that we can have, 513 * for example, more that one wifi network. This class stores all the 514 * NetworkAgentInfo objects that support a given type, but the legacy 515 * API will only see the first one. 516 * 517 * It serves two main purposes: 518 * 519 * 1. Provide information about "the network for a given type" (since this 520 * API only supports one). 521 * 2. Send legacy connectivity change broadcasts. Broadcasts are sent if 522 * the first network for a given type changes, or if the default network 523 * changes. 524 */ 525 private class LegacyTypeTracker { 526 /** 527 * Array of lists, one per legacy network type (e.g., TYPE_MOBILE_MMS). 528 * Each list holds references to all NetworkAgentInfos that are used to 529 * satisfy requests for that network type. 530 * 531 * This array is built out at startup such that an unsupported network 532 * doesn't get an ArrayList instance, making this a tristate: 533 * unsupported, supported but not active and active. 534 * 535 * The actual lists are populated when we scan the network types that 536 * are supported on this device. 537 */ 538 private ArrayList<NetworkAgentInfo> mTypeLists[]; 539 540 public LegacyTypeTracker() { 541 mTypeLists = (ArrayList<NetworkAgentInfo>[]) 542 new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE + 1]; 543 } 544 545 public void addSupportedType(int type) { 546 if (mTypeLists[type] != null) { 547 throw new IllegalStateException( 548 "legacy list for type " + type + "already initialized"); 549 } 550 mTypeLists[type] = new ArrayList<NetworkAgentInfo>(); 551 } 552 553 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 554 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 555 } 556 557 public boolean isTypeSupported(int type) { 558 return isNetworkTypeValid(type) && mTypeLists[type] != null; 559 } 560 561 public NetworkAgentInfo getNetworkForType(int type) { 562 if (isTypeSupported(type) && !mTypeLists[type].isEmpty()) { 563 return mTypeLists[type].get(0); 564 } else { 565 return null; 566 } 567 } 568 569 public void add(int type, NetworkAgentInfo nai) { 570 if (!isTypeSupported(type)) { 571 return; // Invalid network type. 572 } 573 if (VDBG) log("Adding agent " + nai + " for legacy network type " + type); 574 575 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 576 if (list.contains(nai)) { 577 loge("Attempting to register duplicate agent for type " + type + ": " + nai); 578 return; 579 } 580 581 if (list.isEmpty() || isDefaultNetwork(nai)) { 582 if (VDBG) log("Sending connected broadcast for type " + type + 583 "isDefaultNetwork=" + isDefaultNetwork(nai)); 584 sendLegacyNetworkBroadcast(nai, true, type); 585 } 586 list.add(nai); 587 } 588 589 public void remove(NetworkAgentInfo nai) { 590 if (VDBG) log("Removing agent " + nai); 591 for (int type = 0; type < mTypeLists.length; type++) { 592 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 593 if (list == null || list.isEmpty()) { 594 continue; 595 } 596 597 boolean wasFirstNetwork = false; 598 if (list.get(0).equals(nai)) { 599 // This network was the first in the list. Send broadcast. 600 wasFirstNetwork = true; 601 } 602 list.remove(nai); 603 604 if (wasFirstNetwork || isDefaultNetwork(nai)) { 605 if (VDBG) log("Sending disconnected broadcast for type " + type + 606 "isDefaultNetwork=" + isDefaultNetwork(nai)); 607 sendLegacyNetworkBroadcast(nai, false, type); 608 } 609 610 if (!list.isEmpty() && wasFirstNetwork) { 611 if (VDBG) log("Other network available for type " + type + 612 ", sending connected broadcast"); 613 sendLegacyNetworkBroadcast(list.get(0), false, type); 614 } 615 } 616 } 617 } 618 private LegacyTypeTracker mLegacyTypeTracker = new LegacyTypeTracker(); 619 620 public ConnectivityService(Context context, INetworkManagementService netd, 621 INetworkStatsService statsService, INetworkPolicyManager policyManager) { 622 // Currently, omitting a NetworkFactory will create one internally 623 // TODO: create here when we have cleaner WiMAX support 624 this(context, netd, statsService, policyManager, null); 625 } 626 627 public ConnectivityService(Context context, INetworkManagementService netManager, 628 INetworkStatsService statsService, INetworkPolicyManager policyManager, 629 NetworkFactory netFactory) { 630 if (DBG) log("ConnectivityService starting up"); 631 632 NetworkCapabilities netCap = new NetworkCapabilities(); 633 netCap.addNetworkCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 634 netCap.addNetworkCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 635 mDefaultRequest = new NetworkRequest(netCap, TYPE_NONE, nextNetworkRequestId()); 636 NetworkRequestInfo nri = new NetworkRequestInfo(null, mDefaultRequest, new Binder(), 637 NetworkRequestInfo.REQUEST); 638 mNetworkRequests.put(mDefaultRequest, nri); 639 640 HandlerThread handlerThread = new HandlerThread("ConnectivityServiceThread"); 641 handlerThread.start(); 642 mHandler = new InternalHandler(handlerThread.getLooper()); 643 mTrackerHandler = new NetworkStateTrackerHandler(handlerThread.getLooper()); 644 645 if (netFactory == null) { 646 netFactory = new DefaultNetworkFactory(context, mTrackerHandler); 647 } 648 649 // setup our unique device name 650 if (TextUtils.isEmpty(SystemProperties.get("net.hostname"))) { 651 String id = Settings.Secure.getString(context.getContentResolver(), 652 Settings.Secure.ANDROID_ID); 653 if (id != null && id.length() > 0) { 654 String name = new String("android-").concat(id); 655 SystemProperties.set("net.hostname", name); 656 } 657 } 658 659 // read our default dns server ip 660 String dns = Settings.Global.getString(context.getContentResolver(), 661 Settings.Global.DEFAULT_DNS_SERVER); 662 if (dns == null || dns.length() == 0) { 663 dns = context.getResources().getString( 664 com.android.internal.R.string.config_default_dns_server); 665 } 666 try { 667 mDefaultDns = NetworkUtils.numericToInetAddress(dns); 668 } catch (IllegalArgumentException e) { 669 loge("Error setting defaultDns using " + dns); 670 } 671 672 mContext = checkNotNull(context, "missing Context"); 673 mNetd = checkNotNull(netManager, "missing INetworkManagementService"); 674 mPolicyManager = checkNotNull(policyManager, "missing INetworkPolicyManager"); 675 mKeyStore = KeyStore.getInstance(); 676 mTelephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 677 678 try { 679 mPolicyManager.registerListener(mPolicyListener); 680 } catch (RemoteException e) { 681 // ouch, no rules updates means some processes may never get network 682 loge("unable to register INetworkPolicyListener" + e.toString()); 683 } 684 685 final PowerManager powerManager = (PowerManager) context.getSystemService( 686 Context.POWER_SERVICE); 687 mNetTransitionWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); 688 mNetTransitionWakeLockTimeout = mContext.getResources().getInteger( 689 com.android.internal.R.integer.config_networkTransitionTimeout); 690 691 mNetTrackers = new NetworkStateTracker[ 692 ConnectivityManager.MAX_NETWORK_TYPE+1]; 693 mCurrentLinkProperties = new LinkProperties[ConnectivityManager.MAX_NETWORK_TYPE+1]; 694 695 mRadioAttributes = new RadioAttributes[ConnectivityManager.MAX_RADIO_TYPE+1]; 696 mNetConfigs = new NetworkConfig[ConnectivityManager.MAX_NETWORK_TYPE+1]; 697 698 // Load device network attributes from resources 699 String[] raStrings = context.getResources().getStringArray( 700 com.android.internal.R.array.radioAttributes); 701 for (String raString : raStrings) { 702 RadioAttributes r = new RadioAttributes(raString); 703 if (VDBG) log("raString=" + raString + " r=" + r); 704 if (r.mType > ConnectivityManager.MAX_RADIO_TYPE) { 705 loge("Error in radioAttributes - ignoring attempt to define type " + r.mType); 706 continue; 707 } 708 if (mRadioAttributes[r.mType] != null) { 709 loge("Error in radioAttributes - ignoring attempt to redefine type " + 710 r.mType); 711 continue; 712 } 713 mRadioAttributes[r.mType] = r; 714 } 715 716 // TODO: What is the "correct" way to do determine if this is a wifi only device? 717 boolean wifiOnly = SystemProperties.getBoolean("ro.radio.noril", false); 718 log("wifiOnly=" + wifiOnly); 719 String[] naStrings = context.getResources().getStringArray( 720 com.android.internal.R.array.networkAttributes); 721 for (String naString : naStrings) { 722 try { 723 NetworkConfig n = new NetworkConfig(naString); 724 if (VDBG) log("naString=" + naString + " config=" + n); 725 if (n.type > ConnectivityManager.MAX_NETWORK_TYPE) { 726 loge("Error in networkAttributes - ignoring attempt to define type " + 727 n.type); 728 continue; 729 } 730 if (wifiOnly && ConnectivityManager.isNetworkTypeMobile(n.type)) { 731 log("networkAttributes - ignoring mobile as this dev is wifiOnly " + 732 n.type); 733 continue; 734 } 735 if (mNetConfigs[n.type] != null) { 736 loge("Error in networkAttributes - ignoring attempt to redefine type " + 737 n.type); 738 continue; 739 } 740 if (mRadioAttributes[n.radio] == null) { 741 loge("Error in networkAttributes - ignoring attempt to use undefined " + 742 "radio " + n.radio + " in network type " + n.type); 743 continue; 744 } 745 mLegacyTypeTracker.addSupportedType(n.type); 746 747 mNetConfigs[n.type] = n; 748 mNetworksDefined++; 749 } catch(Exception e) { 750 // ignore it - leave the entry null 751 } 752 } 753 if (VDBG) log("mNetworksDefined=" + mNetworksDefined); 754 755 mProtectedNetworks = new ArrayList<Integer>(); 756 int[] protectedNetworks = context.getResources().getIntArray( 757 com.android.internal.R.array.config_protectedNetworks); 758 for (int p : protectedNetworks) { 759 if ((mNetConfigs[p] != null) && (mProtectedNetworks.contains(p) == false)) { 760 mProtectedNetworks.add(p); 761 } else { 762 if (DBG) loge("Ignoring protectedNetwork " + p); 763 } 764 } 765 766 // high priority first 767 mPriorityList = new int[mNetworksDefined]; 768 { 769 int insertionPoint = mNetworksDefined-1; 770 int currentLowest = 0; 771 int nextLowest = 0; 772 while (insertionPoint > -1) { 773 for (NetworkConfig na : mNetConfigs) { 774 if (na == null) continue; 775 if (na.priority < currentLowest) continue; 776 if (na.priority > currentLowest) { 777 if (na.priority < nextLowest || nextLowest == 0) { 778 nextLowest = na.priority; 779 } 780 continue; 781 } 782 mPriorityList[insertionPoint--] = na.type; 783 } 784 currentLowest = nextLowest; 785 nextLowest = 0; 786 } 787 } 788 789 mNetRequestersPids = 790 (List<Integer> [])new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE+1]; 791 for (int i : mPriorityList) { 792 mNetRequestersPids[i] = new ArrayList<Integer>(); 793 } 794 795 mFeatureUsers = new ArrayList<FeatureUser>(); 796 797 mTestMode = SystemProperties.get("cm.test.mode").equals("true") 798 && SystemProperties.get("ro.build.type").equals("eng"); 799 800 // Create and start trackers for hard-coded networks 801 for (int targetNetworkType : mPriorityList) { 802 final NetworkConfig config = mNetConfigs[targetNetworkType]; 803 final NetworkStateTracker tracker; 804 try { 805 tracker = netFactory.createTracker(targetNetworkType, config); 806 mNetTrackers[targetNetworkType] = tracker; 807 } catch (IllegalArgumentException e) { 808 Slog.e(TAG, "Problem creating " + getNetworkTypeName(targetNetworkType) 809 + " tracker: " + e); 810 continue; 811 } 812 813 tracker.startMonitoring(context, mTrackerHandler); 814 if (config.isDefault()) { 815 tracker.reconnect(); 816 } 817 } 818 819 mTethering = new Tethering(mContext, mNetd, statsService, this, mHandler.getLooper()); 820 821 //set up the listener for user state for creating user VPNs 822 IntentFilter intentFilter = new IntentFilter(); 823 intentFilter.addAction(Intent.ACTION_USER_STARTING); 824 intentFilter.addAction(Intent.ACTION_USER_STOPPING); 825 mContext.registerReceiverAsUser( 826 mUserIntentReceiver, UserHandle.ALL, intentFilter, null, null); 827 mClat = new Nat464Xlat(mContext, mNetd, this, mTrackerHandler); 828 829 try { 830 mNetd.registerObserver(mTethering); 831 mNetd.registerObserver(mDataActivityObserver); 832 mNetd.registerObserver(mClat); 833 } catch (RemoteException e) { 834 loge("Error registering observer :" + e); 835 } 836 837 if (DBG) { 838 mInetLog = new ArrayList(); 839 } 840 841 mSettingsObserver = new SettingsObserver(mHandler, EVENT_APPLY_GLOBAL_HTTP_PROXY); 842 mSettingsObserver.observe(mContext); 843 844 mDataConnectionStats = new DataConnectionStats(mContext); 845 mDataConnectionStats.startMonitoring(); 846 847 // start network sampling .. 848 Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED, null); 849 mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, 850 SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); 851 852 mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE); 853 setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); 854 855 IntentFilter filter = new IntentFilter(); 856 filter.addAction(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 857 mContext.registerReceiver( 858 new BroadcastReceiver() { 859 @Override 860 public void onReceive(Context context, Intent intent) { 861 String action = intent.getAction(); 862 if (action.equals(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED)) { 863 mHandler.sendMessage(mHandler.obtainMessage 864 (EVENT_SAMPLE_INTERVAL_ELAPSED)); 865 } 866 } 867 }, 868 new IntentFilter(filter)); 869 870 mPacManager = new PacManager(mContext, mHandler, EVENT_PROXY_HAS_CHANGED); 871 872 filter = new IntentFilter(); 873 filter.addAction(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 874 mContext.registerReceiver(mProvisioningReceiver, filter); 875 876 mAppOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE); 877 } 878 879 private synchronized int nextNetworkRequestId() { 880 return mNextNetworkRequestId++; 881 } 882 883 private synchronized int nextNetId() { 884 int netId = mNextNetId; 885 if (++mNextNetId > MAX_NET_ID) mNextNetId = MIN_NET_ID; 886 return netId; 887 } 888 889 /** 890 * Factory that creates {@link NetworkStateTracker} instances using given 891 * {@link NetworkConfig}. 892 * 893 * TODO - this is obsolete and will be deleted. It's replaced by the 894 * registerNetworkFactory call and protocol. 895 * @Deprecated in favor of registerNetworkFactory dynamic bindings 896 */ 897 public interface NetworkFactory { 898 public NetworkStateTracker createTracker(int targetNetworkType, NetworkConfig config); 899 } 900 901 private static class DefaultNetworkFactory implements NetworkFactory { 902 private final Context mContext; 903 private final Handler mTrackerHandler; 904 905 public DefaultNetworkFactory(Context context, Handler trackerHandler) { 906 mContext = context; 907 mTrackerHandler = trackerHandler; 908 } 909 910 @Override 911 public NetworkStateTracker createTracker(int targetNetworkType, NetworkConfig config) { 912 switch (config.radio) { 913 case TYPE_DUMMY: 914 return new DummyDataStateTracker(targetNetworkType, config.name); 915 case TYPE_BLUETOOTH: 916 return BluetoothTetheringDataTracker.getInstance(); 917 case TYPE_WIMAX: 918 return makeWimaxStateTracker(mContext, mTrackerHandler); 919 case TYPE_PROXY: 920 return new ProxyDataTracker(); 921 default: 922 throw new IllegalArgumentException( 923 "Trying to create a NetworkStateTracker for an unknown radio type: " 924 + config.radio); 925 } 926 } 927 } 928 929 /** 930 * Loads external WiMAX library and registers as system service, returning a 931 * {@link NetworkStateTracker} for WiMAX. Caller is still responsible for 932 * invoking {@link NetworkStateTracker#startMonitoring(Context, Handler)}. 933 */ 934 private static NetworkStateTracker makeWimaxStateTracker( 935 Context context, Handler trackerHandler) { 936 // Initialize Wimax 937 DexClassLoader wimaxClassLoader; 938 Class wimaxStateTrackerClass = null; 939 Class wimaxServiceClass = null; 940 Class wimaxManagerClass; 941 String wimaxJarLocation; 942 String wimaxLibLocation; 943 String wimaxManagerClassName; 944 String wimaxServiceClassName; 945 String wimaxStateTrackerClassName; 946 947 NetworkStateTracker wimaxStateTracker = null; 948 949 boolean isWimaxEnabled = context.getResources().getBoolean( 950 com.android.internal.R.bool.config_wimaxEnabled); 951 952 if (isWimaxEnabled) { 953 try { 954 wimaxJarLocation = context.getResources().getString( 955 com.android.internal.R.string.config_wimaxServiceJarLocation); 956 wimaxLibLocation = context.getResources().getString( 957 com.android.internal.R.string.config_wimaxNativeLibLocation); 958 wimaxManagerClassName = context.getResources().getString( 959 com.android.internal.R.string.config_wimaxManagerClassname); 960 wimaxServiceClassName = context.getResources().getString( 961 com.android.internal.R.string.config_wimaxServiceClassname); 962 wimaxStateTrackerClassName = context.getResources().getString( 963 com.android.internal.R.string.config_wimaxStateTrackerClassname); 964 965 if (DBG) log("wimaxJarLocation: " + wimaxJarLocation); 966 wimaxClassLoader = new DexClassLoader(wimaxJarLocation, 967 new ContextWrapper(context).getCacheDir().getAbsolutePath(), 968 wimaxLibLocation, ClassLoader.getSystemClassLoader()); 969 970 try { 971 wimaxManagerClass = wimaxClassLoader.loadClass(wimaxManagerClassName); 972 wimaxStateTrackerClass = wimaxClassLoader.loadClass(wimaxStateTrackerClassName); 973 wimaxServiceClass = wimaxClassLoader.loadClass(wimaxServiceClassName); 974 } catch (ClassNotFoundException ex) { 975 loge("Exception finding Wimax classes: " + ex.toString()); 976 return null; 977 } 978 } catch(Resources.NotFoundException ex) { 979 loge("Wimax Resources does not exist!!! "); 980 return null; 981 } 982 983 try { 984 if (DBG) log("Starting Wimax Service... "); 985 986 Constructor wmxStTrkrConst = wimaxStateTrackerClass.getConstructor 987 (new Class[] {Context.class, Handler.class}); 988 wimaxStateTracker = (NetworkStateTracker) wmxStTrkrConst.newInstance( 989 context, trackerHandler); 990 991 Constructor wmxSrvConst = wimaxServiceClass.getDeclaredConstructor 992 (new Class[] {Context.class, wimaxStateTrackerClass}); 993 wmxSrvConst.setAccessible(true); 994 IBinder svcInvoker = (IBinder)wmxSrvConst.newInstance(context, wimaxStateTracker); 995 wmxSrvConst.setAccessible(false); 996 997 ServiceManager.addService(WimaxManagerConstants.WIMAX_SERVICE, svcInvoker); 998 999 } catch(Exception ex) { 1000 loge("Exception creating Wimax classes: " + ex.toString()); 1001 return null; 1002 } 1003 } else { 1004 loge("Wimax is not enabled or not added to the network attributes!!! "); 1005 return null; 1006 } 1007 1008 return wimaxStateTracker; 1009 } 1010 1011 private int getConnectivityChangeDelay() { 1012 final ContentResolver cr = mContext.getContentResolver(); 1013 1014 /** Check system properties for the default value then use secure settings value, if any. */ 1015 int defaultDelay = SystemProperties.getInt( 1016 "conn." + Settings.Global.CONNECTIVITY_CHANGE_DELAY, 1017 ConnectivityManager.CONNECTIVITY_CHANGE_DELAY_DEFAULT); 1018 return Settings.Global.getInt(cr, Settings.Global.CONNECTIVITY_CHANGE_DELAY, 1019 defaultDelay); 1020 } 1021 1022 private boolean teardown(NetworkStateTracker netTracker) { 1023 if (netTracker.teardown()) { 1024 netTracker.setTeardownRequested(true); 1025 return true; 1026 } else { 1027 return false; 1028 } 1029 } 1030 1031 /** 1032 * Check if UID should be blocked from using the network represented by the 1033 * given {@link NetworkStateTracker}. 1034 */ 1035 private boolean isNetworkBlocked(int networkType, int uid) { 1036 final boolean networkCostly; 1037 final int uidRules; 1038 1039 LinkProperties lp = getLinkPropertiesForType(networkType); 1040 final String iface = (lp == null ? "" : lp.getInterfaceName()); 1041 synchronized (mRulesLock) { 1042 networkCostly = mMeteredIfaces.contains(iface); 1043 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 1044 } 1045 1046 if (networkCostly && (uidRules & RULE_REJECT_METERED) != 0) { 1047 return true; 1048 } 1049 1050 // no restrictive rules; network is visible 1051 return false; 1052 } 1053 1054 /** 1055 * Return a filtered {@link NetworkInfo}, potentially marked 1056 * {@link DetailedState#BLOCKED} based on 1057 * {@link #isNetworkBlocked}. 1058 */ 1059 private NetworkInfo getFilteredNetworkInfo(int networkType, int uid) { 1060 NetworkInfo info = getNetworkInfoForType(networkType); 1061 if (isNetworkBlocked(networkType, uid)) { 1062 // network is blocked; clone and override state 1063 info = new NetworkInfo(info); 1064 info.setDetailedState(DetailedState.BLOCKED, null, null); 1065 } 1066 if (mLockdownTracker != null) { 1067 info = mLockdownTracker.augmentNetworkInfo(info); 1068 } 1069 return info; 1070 } 1071 1072 /** 1073 * Return NetworkInfo for the active (i.e., connected) network interface. 1074 * It is assumed that at most one network is active at a time. If more 1075 * than one is active, it is indeterminate which will be returned. 1076 * @return the info for the active network, or {@code null} if none is 1077 * active 1078 */ 1079 @Override 1080 public NetworkInfo getActiveNetworkInfo() { 1081 enforceAccessPermission(); 1082 final int uid = Binder.getCallingUid(); 1083 return getNetworkInfo(mActiveDefaultNetwork, uid); 1084 } 1085 1086 // only called when the default request is satisfied 1087 private void updateActiveDefaultNetwork(NetworkAgentInfo nai) { 1088 if (nai != null) { 1089 mActiveDefaultNetwork = nai.networkInfo.getType(); 1090 } else { 1091 mActiveDefaultNetwork = TYPE_NONE; 1092 } 1093 } 1094 1095 /** 1096 * Find the first Provisioning network. 1097 * 1098 * @return NetworkInfo or null if none. 1099 */ 1100 private NetworkInfo getProvisioningNetworkInfo() { 1101 enforceAccessPermission(); 1102 1103 // Find the first Provisioning Network 1104 NetworkInfo provNi = null; 1105 for (NetworkInfo ni : getAllNetworkInfo()) { 1106 if (ni.isConnectedToProvisioningNetwork()) { 1107 provNi = ni; 1108 break; 1109 } 1110 } 1111 if (DBG) log("getProvisioningNetworkInfo: X provNi=" + provNi); 1112 return provNi; 1113 } 1114 1115 /** 1116 * Find the first Provisioning network or the ActiveDefaultNetwork 1117 * if there is no Provisioning network 1118 * 1119 * @return NetworkInfo or null if none. 1120 */ 1121 @Override 1122 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 1123 enforceAccessPermission(); 1124 1125 NetworkInfo provNi = getProvisioningNetworkInfo(); 1126 if (provNi == null) { 1127 final int uid = Binder.getCallingUid(); 1128 provNi = getNetworkInfo(mActiveDefaultNetwork, uid); 1129 } 1130 if (DBG) log("getProvisioningOrActiveNetworkInfo: X provNi=" + provNi); 1131 return provNi; 1132 } 1133 1134 public NetworkInfo getActiveNetworkInfoUnfiltered() { 1135 enforceAccessPermission(); 1136 if (isNetworkTypeValid(mActiveDefaultNetwork)) { 1137 return getNetworkInfoForType(mActiveDefaultNetwork); 1138 } 1139 return null; 1140 } 1141 1142 @Override 1143 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 1144 enforceConnectivityInternalPermission(); 1145 return getNetworkInfo(mActiveDefaultNetwork, uid); 1146 } 1147 1148 @Override 1149 public NetworkInfo getNetworkInfo(int networkType) { 1150 enforceAccessPermission(); 1151 final int uid = Binder.getCallingUid(); 1152 return getNetworkInfo(networkType, uid); 1153 } 1154 1155 private NetworkInfo getNetworkInfo(int networkType, int uid) { 1156 NetworkInfo info = null; 1157 if (isNetworkTypeValid(networkType)) { 1158 if (getNetworkInfoForType(networkType) != null) { 1159 info = getFilteredNetworkInfo(networkType, uid); 1160 } 1161 } 1162 return info; 1163 } 1164 1165 @Override 1166 public NetworkInfo[] getAllNetworkInfo() { 1167 enforceAccessPermission(); 1168 final int uid = Binder.getCallingUid(); 1169 final ArrayList<NetworkInfo> result = Lists.newArrayList(); 1170 synchronized (mRulesLock) { 1171 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1172 networkType++) { 1173 if (getNetworkInfoForType(networkType) != null) { 1174 result.add(getFilteredNetworkInfo(networkType, uid)); 1175 } 1176 } 1177 } 1178 return result.toArray(new NetworkInfo[result.size()]); 1179 } 1180 1181 @Override 1182 public boolean isNetworkSupported(int networkType) { 1183 enforceAccessPermission(); 1184 return (isNetworkTypeValid(networkType) && (getNetworkInfoForType(networkType) != null)); 1185 } 1186 1187 /** 1188 * Return LinkProperties for the active (i.e., connected) default 1189 * network interface. It is assumed that at most one default network 1190 * is active at a time. If more than one is active, it is indeterminate 1191 * which will be returned. 1192 * @return the ip properties for the active network, or {@code null} if 1193 * none is active 1194 */ 1195 @Override 1196 public LinkProperties getActiveLinkProperties() { 1197 return getLinkPropertiesForType(mActiveDefaultNetwork); 1198 } 1199 1200 @Override 1201 public LinkProperties getLinkPropertiesForType(int networkType) { 1202 enforceAccessPermission(); 1203 if (isNetworkTypeValid(networkType)) { 1204 return getLinkPropertiesForTypeInternal(networkType); 1205 } 1206 return null; 1207 } 1208 1209 // TODO - this should be ALL networks 1210 @Override 1211 public LinkProperties getLinkProperties(Network network) { 1212 enforceAccessPermission(); 1213 NetworkAgentInfo nai = mNetworkForNetId.get(network.netId); 1214 if (nai != null) return new LinkProperties(nai.linkProperties); 1215 return null; 1216 } 1217 1218 @Override 1219 public NetworkCapabilities getNetworkCapabilities(Network network) { 1220 enforceAccessPermission(); 1221 NetworkAgentInfo nai = mNetworkForNetId.get(network.netId); 1222 if (nai != null) return new NetworkCapabilities(nai.networkCapabilities); 1223 return null; 1224 } 1225 1226 @Override 1227 public NetworkState[] getAllNetworkState() { 1228 enforceAccessPermission(); 1229 final int uid = Binder.getCallingUid(); 1230 final ArrayList<NetworkState> result = Lists.newArrayList(); 1231 synchronized (mRulesLock) { 1232 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1233 networkType++) { 1234 if (getNetworkInfoForType(networkType) != null) { 1235 final NetworkInfo info = getFilteredNetworkInfo(networkType, uid); 1236 final LinkProperties lp = getLinkPropertiesForTypeInternal(networkType); 1237 final NetworkCapabilities netcap = getNetworkCapabilitiesForType(networkType); 1238 result.add(new NetworkState(info, lp, netcap)); 1239 } 1240 } 1241 } 1242 return result.toArray(new NetworkState[result.size()]); 1243 } 1244 1245 private NetworkState getNetworkStateUnchecked(int networkType) { 1246 if (isNetworkTypeValid(networkType)) { 1247 NetworkInfo info = getNetworkInfoForType(networkType); 1248 if (info != null) { 1249 return new NetworkState(info, 1250 getLinkPropertiesForTypeInternal(networkType), 1251 getNetworkCapabilitiesForType(networkType)); 1252 } 1253 } 1254 return null; 1255 } 1256 1257 @Override 1258 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1259 enforceAccessPermission(); 1260 1261 final long token = Binder.clearCallingIdentity(); 1262 try { 1263 final NetworkState state = getNetworkStateUnchecked(mActiveDefaultNetwork); 1264 if (state != null) { 1265 try { 1266 return mPolicyManager.getNetworkQuotaInfo(state); 1267 } catch (RemoteException e) { 1268 } 1269 } 1270 return null; 1271 } finally { 1272 Binder.restoreCallingIdentity(token); 1273 } 1274 } 1275 1276 @Override 1277 public boolean isActiveNetworkMetered() { 1278 enforceAccessPermission(); 1279 final long token = Binder.clearCallingIdentity(); 1280 try { 1281 return isNetworkMeteredUnchecked(mActiveDefaultNetwork); 1282 } finally { 1283 Binder.restoreCallingIdentity(token); 1284 } 1285 } 1286 1287 private boolean isNetworkMeteredUnchecked(int networkType) { 1288 final NetworkState state = getNetworkStateUnchecked(networkType); 1289 if (state != null) { 1290 try { 1291 return mPolicyManager.isNetworkMetered(state); 1292 } catch (RemoteException e) { 1293 } 1294 } 1295 return false; 1296 } 1297 1298 private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { 1299 @Override 1300 public void interfaceClassDataActivityChanged(String label, boolean active, long tsNanos) { 1301 int deviceType = Integer.parseInt(label); 1302 sendDataActivityBroadcast(deviceType, active, tsNanos); 1303 } 1304 }; 1305 1306 /** 1307 * Used to notice when the calling process dies so we can self-expire 1308 * 1309 * Also used to know if the process has cleaned up after itself when 1310 * our auto-expire timer goes off. The timer has a link to an object. 1311 * 1312 */ 1313 private class FeatureUser implements IBinder.DeathRecipient { 1314 int mNetworkType; 1315 String mFeature; 1316 IBinder mBinder; 1317 int mPid; 1318 int mUid; 1319 long mCreateTime; 1320 1321 FeatureUser(int type, String feature, IBinder binder) { 1322 super(); 1323 mNetworkType = type; 1324 mFeature = feature; 1325 mBinder = binder; 1326 mPid = getCallingPid(); 1327 mUid = getCallingUid(); 1328 mCreateTime = System.currentTimeMillis(); 1329 1330 try { 1331 mBinder.linkToDeath(this, 0); 1332 } catch (RemoteException e) { 1333 binderDied(); 1334 } 1335 } 1336 1337 void unlinkDeathRecipient() { 1338 mBinder.unlinkToDeath(this, 0); 1339 } 1340 1341 public void binderDied() { 1342 log("ConnectivityService FeatureUser binderDied(" + 1343 mNetworkType + ", " + mFeature + ", " + mBinder + "), created " + 1344 (System.currentTimeMillis() - mCreateTime) + " mSec ago"); 1345 stopUsingNetworkFeature(this, false); 1346 } 1347 1348 public void expire() { 1349 if (VDBG) { 1350 log("ConnectivityService FeatureUser expire(" + 1351 mNetworkType + ", " + mFeature + ", " + mBinder +"), created " + 1352 (System.currentTimeMillis() - mCreateTime) + " mSec ago"); 1353 } 1354 stopUsingNetworkFeature(this, false); 1355 } 1356 1357 public boolean isSameUser(FeatureUser u) { 1358 if (u == null) return false; 1359 1360 return isSameUser(u.mPid, u.mUid, u.mNetworkType, u.mFeature); 1361 } 1362 1363 public boolean isSameUser(int pid, int uid, int networkType, String feature) { 1364 if ((mPid == pid) && (mUid == uid) && (mNetworkType == networkType) && 1365 TextUtils.equals(mFeature, feature)) { 1366 return true; 1367 } 1368 return false; 1369 } 1370 1371 public String toString() { 1372 return "FeatureUser("+mNetworkType+","+mFeature+","+mPid+","+mUid+"), created " + 1373 (System.currentTimeMillis() - mCreateTime) + " mSec ago"; 1374 } 1375 } 1376 1377 // javadoc from interface 1378 public int startUsingNetworkFeature(int networkType, String feature, 1379 IBinder binder) { 1380 long startTime = 0; 1381 if (DBG) { 1382 startTime = SystemClock.elapsedRealtime(); 1383 } 1384 if (VDBG) { 1385 log("startUsingNetworkFeature for net " + networkType + ": " + feature + ", uid=" 1386 + Binder.getCallingUid()); 1387 } 1388 enforceChangePermission(); 1389 try { 1390 if (!ConnectivityManager.isNetworkTypeValid(networkType) || 1391 mNetConfigs[networkType] == null) { 1392 return PhoneConstants.APN_REQUEST_FAILED; 1393 } 1394 1395 FeatureUser f = new FeatureUser(networkType, feature, binder); 1396 1397 // TODO - move this into individual networktrackers 1398 int usedNetworkType = convertFeatureToNetworkType(networkType, feature); 1399 1400 if (mLockdownEnabled) { 1401 // Since carrier APNs usually aren't available from VPN 1402 // endpoint, mark them as unavailable. 1403 return PhoneConstants.APN_TYPE_NOT_AVAILABLE; 1404 } 1405 1406 if (mProtectedNetworks.contains(usedNetworkType)) { 1407 enforceConnectivityInternalPermission(); 1408 } 1409 1410 // if UID is restricted, don't allow them to bring up metered APNs 1411 final boolean networkMetered = isNetworkMeteredUnchecked(usedNetworkType); 1412 final int uidRules; 1413 synchronized (mRulesLock) { 1414 uidRules = mUidRules.get(Binder.getCallingUid(), RULE_ALLOW_ALL); 1415 } 1416 if (networkMetered && (uidRules & RULE_REJECT_METERED) != 0) { 1417 return PhoneConstants.APN_REQUEST_FAILED; 1418 } 1419 1420 NetworkStateTracker network = mNetTrackers[usedNetworkType]; 1421 if (network != null) { 1422 Integer currentPid = new Integer(getCallingPid()); 1423 if (usedNetworkType != networkType) { 1424 NetworkInfo ni = network.getNetworkInfo(); 1425 1426 if (ni.isAvailable() == false) { 1427 if (!TextUtils.equals(feature,Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 1428 if (DBG) log("special network not available ni=" + ni.getTypeName()); 1429 return PhoneConstants.APN_TYPE_NOT_AVAILABLE; 1430 } else { 1431 // else make the attempt anyway - probably giving REQUEST_STARTED below 1432 if (DBG) { 1433 log("special network not available, but try anyway ni=" + 1434 ni.getTypeName()); 1435 } 1436 } 1437 } 1438 1439 int restoreTimer = getRestoreDefaultNetworkDelay(usedNetworkType); 1440 1441 synchronized(this) { 1442 boolean addToList = true; 1443 if (restoreTimer < 0) { 1444 // In case there is no timer is specified for the feature, 1445 // make sure we don't add duplicate entry with the same request. 1446 for (FeatureUser u : mFeatureUsers) { 1447 if (u.isSameUser(f)) { 1448 // Duplicate user is found. Do not add. 1449 addToList = false; 1450 break; 1451 } 1452 } 1453 } 1454 1455 if (addToList) mFeatureUsers.add(f); 1456 if (!mNetRequestersPids[usedNetworkType].contains(currentPid)) { 1457 // this gets used for per-pid dns when connected 1458 mNetRequestersPids[usedNetworkType].add(currentPid); 1459 } 1460 } 1461 1462 if (restoreTimer >= 0) { 1463 mHandler.sendMessageDelayed(mHandler.obtainMessage( 1464 EVENT_RESTORE_DEFAULT_NETWORK, f), restoreTimer); 1465 } 1466 1467 if ((ni.isConnectedOrConnecting() == true) && 1468 !network.isTeardownRequested()) { 1469 if (ni.isConnected() == true) { 1470 final long token = Binder.clearCallingIdentity(); 1471 try { 1472 // add the pid-specific dns 1473 handleDnsConfigurationChange(usedNetworkType); 1474 if (VDBG) log("special network already active"); 1475 } finally { 1476 Binder.restoreCallingIdentity(token); 1477 } 1478 return PhoneConstants.APN_ALREADY_ACTIVE; 1479 } 1480 if (VDBG) log("special network already connecting"); 1481 return PhoneConstants.APN_REQUEST_STARTED; 1482 } 1483 1484 // check if the radio in play can make another contact 1485 // assume if cannot for now 1486 1487 if (DBG) { 1488 log("startUsingNetworkFeature reconnecting to " + networkType + ": " + 1489 feature); 1490 } 1491 if (network.reconnect()) { 1492 if (DBG) log("startUsingNetworkFeature X: return APN_REQUEST_STARTED"); 1493 return PhoneConstants.APN_REQUEST_STARTED; 1494 } else { 1495 if (DBG) log("startUsingNetworkFeature X: return APN_REQUEST_FAILED"); 1496 return PhoneConstants.APN_REQUEST_FAILED; 1497 } 1498 } else { 1499 // need to remember this unsupported request so we respond appropriately on stop 1500 synchronized(this) { 1501 mFeatureUsers.add(f); 1502 if (!mNetRequestersPids[usedNetworkType].contains(currentPid)) { 1503 // this gets used for per-pid dns when connected 1504 mNetRequestersPids[usedNetworkType].add(currentPid); 1505 } 1506 } 1507 if (DBG) log("startUsingNetworkFeature X: return -1 unsupported feature."); 1508 return -1; 1509 } 1510 } 1511 if (DBG) log("startUsingNetworkFeature X: return APN_TYPE_NOT_AVAILABLE"); 1512 return PhoneConstants.APN_TYPE_NOT_AVAILABLE; 1513 } finally { 1514 if (DBG) { 1515 final long execTime = SystemClock.elapsedRealtime() - startTime; 1516 if (execTime > 250) { 1517 loge("startUsingNetworkFeature took too long: " + execTime + "ms"); 1518 } else { 1519 if (VDBG) log("startUsingNetworkFeature took " + execTime + "ms"); 1520 } 1521 } 1522 } 1523 } 1524 1525 // javadoc from interface 1526 public int stopUsingNetworkFeature(int networkType, String feature) { 1527 enforceChangePermission(); 1528 1529 int pid = getCallingPid(); 1530 int uid = getCallingUid(); 1531 1532 FeatureUser u = null; 1533 boolean found = false; 1534 1535 synchronized(this) { 1536 for (FeatureUser x : mFeatureUsers) { 1537 if (x.isSameUser(pid, uid, networkType, feature)) { 1538 u = x; 1539 found = true; 1540 break; 1541 } 1542 } 1543 } 1544 if (found && u != null) { 1545 if (VDBG) log("stopUsingNetworkFeature: X"); 1546 // stop regardless of how many other time this proc had called start 1547 return stopUsingNetworkFeature(u, true); 1548 } else { 1549 // none found! 1550 if (VDBG) log("stopUsingNetworkFeature: X not a live request, ignoring"); 1551 return 1; 1552 } 1553 } 1554 1555 private int stopUsingNetworkFeature(FeatureUser u, boolean ignoreDups) { 1556 int networkType = u.mNetworkType; 1557 String feature = u.mFeature; 1558 int pid = u.mPid; 1559 int uid = u.mUid; 1560 1561 NetworkStateTracker tracker = null; 1562 boolean callTeardown = false; // used to carry our decision outside of sync block 1563 1564 if (VDBG) { 1565 log("stopUsingNetworkFeature: net " + networkType + ": " + feature); 1566 } 1567 1568 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1569 if (DBG) { 1570 log("stopUsingNetworkFeature: net " + networkType + ": " + feature + 1571 ", net is invalid"); 1572 } 1573 return -1; 1574 } 1575 1576 // need to link the mFeatureUsers list with the mNetRequestersPids state in this 1577 // sync block 1578 synchronized(this) { 1579 // check if this process still has an outstanding start request 1580 if (!mFeatureUsers.contains(u)) { 1581 if (VDBG) { 1582 log("stopUsingNetworkFeature: this process has no outstanding requests" + 1583 ", ignoring"); 1584 } 1585 return 1; 1586 } 1587 u.unlinkDeathRecipient(); 1588 mFeatureUsers.remove(mFeatureUsers.indexOf(u)); 1589 // If we care about duplicate requests, check for that here. 1590 // 1591 // This is done to support the extension of a request - the app 1592 // can request we start the network feature again and renew the 1593 // auto-shutoff delay. Normal "stop" calls from the app though 1594 // do not pay attention to duplicate requests - in effect the 1595 // API does not refcount and a single stop will counter multiple starts. 1596 if (ignoreDups == false) { 1597 for (FeatureUser x : mFeatureUsers) { 1598 if (x.isSameUser(u)) { 1599 if (VDBG) log("stopUsingNetworkFeature: dup is found, ignoring"); 1600 return 1; 1601 } 1602 } 1603 } 1604 1605 // TODO - move to individual network trackers 1606 int usedNetworkType = convertFeatureToNetworkType(networkType, feature); 1607 1608 tracker = mNetTrackers[usedNetworkType]; 1609 if (tracker == null) { 1610 if (DBG) { 1611 log("stopUsingNetworkFeature: net " + networkType + ": " + feature + 1612 " no known tracker for used net type " + usedNetworkType); 1613 } 1614 return -1; 1615 } 1616 if (usedNetworkType != networkType) { 1617 Integer currentPid = new Integer(pid); 1618 mNetRequestersPids[usedNetworkType].remove(currentPid); 1619 1620 final long token = Binder.clearCallingIdentity(); 1621 try { 1622 reassessPidDns(pid, true); 1623 } finally { 1624 Binder.restoreCallingIdentity(token); 1625 } 1626 flushVmDnsCache(); 1627 if (mNetRequestersPids[usedNetworkType].size() != 0) { 1628 if (VDBG) { 1629 log("stopUsingNetworkFeature: net " + networkType + ": " + feature + 1630 " others still using it"); 1631 } 1632 return 1; 1633 } 1634 callTeardown = true; 1635 } else { 1636 if (DBG) { 1637 log("stopUsingNetworkFeature: net " + networkType + ": " + feature + 1638 " not a known feature - dropping"); 1639 } 1640 } 1641 } 1642 1643 if (callTeardown) { 1644 if (DBG) { 1645 log("stopUsingNetworkFeature: teardown net " + networkType + ": " + feature); 1646 } 1647 tracker.teardown(); 1648 return 1; 1649 } else { 1650 return -1; 1651 } 1652 } 1653 1654 /** 1655 * Check if the address falls into any of currently running VPN's route's. 1656 */ 1657 private boolean isAddressUnderVpn(InetAddress address) { 1658 synchronized (mVpns) { 1659 synchronized (mRoutesLock) { 1660 int uid = UserHandle.getCallingUserId(); 1661 Vpn vpn = mVpns.get(uid); 1662 if (vpn == null) { 1663 return false; 1664 } 1665 1666 // Check if an exemption exists for this address. 1667 for (LinkAddress destination : mExemptAddresses) { 1668 if (!NetworkUtils.addressTypeMatches(address, destination.getAddress())) { 1669 continue; 1670 } 1671 1672 int prefix = destination.getNetworkPrefixLength(); 1673 InetAddress addrMasked = NetworkUtils.getNetworkPart(address, prefix); 1674 InetAddress destMasked = NetworkUtils.getNetworkPart(destination.getAddress(), 1675 prefix); 1676 1677 if (addrMasked.equals(destMasked)) { 1678 return false; 1679 } 1680 } 1681 1682 // Finally check if the address is covered by the VPN. 1683 return vpn.isAddressCovered(address); 1684 } 1685 } 1686 } 1687 1688 /** 1689 * @deprecated use requestRouteToHostAddress instead 1690 * 1691 * Ensure that a network route exists to deliver traffic to the specified 1692 * host via the specified network interface. 1693 * @param networkType the type of the network over which traffic to the 1694 * specified host is to be routed 1695 * @param hostAddress the IP address of the host to which the route is 1696 * desired 1697 * @return {@code true} on success, {@code false} on failure 1698 */ 1699 public boolean requestRouteToHost(int networkType, int hostAddress, String packageName) { 1700 InetAddress inetAddress = NetworkUtils.intToInetAddress(hostAddress); 1701 1702 if (inetAddress == null) { 1703 return false; 1704 } 1705 1706 return requestRouteToHostAddress(networkType, inetAddress.getAddress(), packageName); 1707 } 1708 1709 /** 1710 * Ensure that a network route exists to deliver traffic to the specified 1711 * host via the specified network interface. 1712 * @param networkType the type of the network over which traffic to the 1713 * specified host is to be routed 1714 * @param hostAddress the IP address of the host to which the route is 1715 * desired 1716 * @return {@code true} on success, {@code false} on failure 1717 */ 1718 public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress, 1719 String packageName) { 1720 enforceChangePermission(); 1721 if (mProtectedNetworks.contains(networkType)) { 1722 enforceConnectivityInternalPermission(); 1723 } 1724 boolean exempt; 1725 InetAddress addr; 1726 try { 1727 addr = InetAddress.getByAddress(hostAddress); 1728 } catch (UnknownHostException e) { 1729 if (DBG) log("requestRouteToHostAddress got " + e.toString()); 1730 return false; 1731 } 1732 // System apps may request routes bypassing the VPN to keep other networks working. 1733 if (Binder.getCallingUid() == Process.SYSTEM_UID) { 1734 exempt = true; 1735 } else { 1736 mAppOpsManager.checkPackage(Binder.getCallingUid(), packageName); 1737 try { 1738 ApplicationInfo info = mContext.getPackageManager().getApplicationInfo(packageName, 1739 0); 1740 exempt = (info.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 1741 } catch (NameNotFoundException e) { 1742 throw new IllegalArgumentException("Failed to find calling package details", e); 1743 } 1744 } 1745 1746 // Non-exempt routeToHost's can only be added if the host is not covered by the VPN. 1747 // This can be either because the VPN's routes do not cover the destination or a 1748 // system application added an exemption that covers this destination. 1749 if (!exempt && isAddressUnderVpn(addr)) { 1750 return false; 1751 } 1752 1753 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1754 if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); 1755 return false; 1756 } 1757 NetworkStateTracker tracker = mNetTrackers[networkType]; 1758 DetailedState netState = DetailedState.DISCONNECTED; 1759 if (tracker != null) { 1760 netState = tracker.getNetworkInfo().getDetailedState(); 1761 } 1762 1763 if ((netState != DetailedState.CONNECTED && 1764 netState != DetailedState.CAPTIVE_PORTAL_CHECK) || 1765 tracker.isTeardownRequested()) { 1766 if (VDBG) { 1767 log("requestRouteToHostAddress on down network " 1768 + "(" + networkType + ") - dropped" 1769 + " tracker=" + tracker 1770 + " netState=" + netState 1771 + " isTeardownRequested=" 1772 + ((tracker != null) ? tracker.isTeardownRequested() : "tracker:null")); 1773 } 1774 return false; 1775 } 1776 final int uid = Binder.getCallingUid(); 1777 final long token = Binder.clearCallingIdentity(); 1778 try { 1779 LinkProperties lp = tracker.getLinkProperties(); 1780 boolean ok = modifyRouteToAddress(lp, addr, ADD, TO_DEFAULT_TABLE, exempt, 1781 tracker.getNetwork().netId, uid); 1782 if (DBG) log("requestRouteToHostAddress ok=" + ok); 1783 return ok; 1784 } finally { 1785 Binder.restoreCallingIdentity(token); 1786 } 1787 } 1788 1789 private boolean addRoute(LinkProperties p, RouteInfo r, boolean toDefaultTable, 1790 boolean exempt, int netId) { 1791 return modifyRoute(p, r, 0, ADD, toDefaultTable, exempt, netId, false, UID_UNUSED); 1792 } 1793 1794 private boolean removeRoute(LinkProperties p, RouteInfo r, boolean toDefaultTable, int netId) { 1795 return modifyRoute(p, r, 0, REMOVE, toDefaultTable, UNEXEMPT, netId, false, UID_UNUSED); 1796 } 1797 1798 private boolean modifyRouteToAddress(LinkProperties lp, InetAddress addr, boolean doAdd, 1799 boolean toDefaultTable, boolean exempt, int netId, int uid) { 1800 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), addr); 1801 if (bestRoute == null) { 1802 bestRoute = RouteInfo.makeHostRoute(addr, lp.getInterfaceName()); 1803 } else { 1804 String iface = bestRoute.getInterface(); 1805 if (bestRoute.getGateway().equals(addr)) { 1806 // if there is no better route, add the implied hostroute for our gateway 1807 bestRoute = RouteInfo.makeHostRoute(addr, iface); 1808 } else { 1809 // if we will connect to this through another route, add a direct route 1810 // to it's gateway 1811 bestRoute = RouteInfo.makeHostRoute(addr, bestRoute.getGateway(), iface); 1812 } 1813 } 1814 return modifyRoute(lp, bestRoute, 0, doAdd, toDefaultTable, exempt, netId, true, uid); 1815 } 1816 1817 /* 1818 * TODO: Clean all this stuff up. Once we have UID-based routing, stuff will break due to 1819 * incorrect tracking of mAddedRoutes, so a cleanup becomes necessary and urgent. But at 1820 * the same time, there'll be no more need to track mAddedRoutes or mExemptAddresses, 1821 * or even have the concept of an exempt address, or do things like "selectBestRoute", or 1822 * determine "default" vs "secondary" table, etc., so the cleanup becomes possible. 1823 */ 1824 private boolean modifyRoute(LinkProperties lp, RouteInfo r, int cycleCount, boolean doAdd, 1825 boolean toDefaultTable, boolean exempt, int netId, boolean legacy, int uid) { 1826 if ((lp == null) || (r == null)) { 1827 if (DBG) log("modifyRoute got unexpected null: " + lp + ", " + r); 1828 return false; 1829 } 1830 1831 if (cycleCount > MAX_HOSTROUTE_CYCLE_COUNT) { 1832 loge("Error modifying route - too much recursion"); 1833 return false; 1834 } 1835 1836 String ifaceName = r.getInterface(); 1837 if(ifaceName == null) { 1838 loge("Error modifying route - no interface name"); 1839 return false; 1840 } 1841 if (r.hasGateway()) { 1842 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), r.getGateway()); 1843 if (bestRoute != null) { 1844 if (bestRoute.getGateway().equals(r.getGateway())) { 1845 // if there is no better route, add the implied hostroute for our gateway 1846 bestRoute = RouteInfo.makeHostRoute(r.getGateway(), ifaceName); 1847 } else { 1848 // if we will connect to our gateway through another route, add a direct 1849 // route to it's gateway 1850 bestRoute = RouteInfo.makeHostRoute(r.getGateway(), 1851 bestRoute.getGateway(), 1852 ifaceName); 1853 } 1854 modifyRoute(lp, bestRoute, cycleCount+1, doAdd, toDefaultTable, exempt, netId, 1855 legacy, uid); 1856 } 1857 } 1858 if (doAdd) { 1859 if (VDBG) log("Adding " + r + " for interface " + ifaceName); 1860 try { 1861 if (toDefaultTable) { 1862 synchronized (mRoutesLock) { 1863 // only track default table - only one apps can effect 1864 mAddedRoutes.add(r); 1865 if (legacy) { 1866 mNetd.addLegacyRouteForNetId(netId, r, uid); 1867 } else { 1868 mNetd.addRoute(netId, r); 1869 } 1870 if (exempt) { 1871 LinkAddress dest = r.getDestination(); 1872 if (!mExemptAddresses.contains(dest)) { 1873 mNetd.setHostExemption(dest); 1874 mExemptAddresses.add(dest); 1875 } 1876 } 1877 } 1878 } else { 1879 if (legacy) { 1880 mNetd.addLegacyRouteForNetId(netId, r, uid); 1881 } else { 1882 mNetd.addRoute(netId, r); 1883 } 1884 } 1885 } catch (Exception e) { 1886 // never crash - catch them all 1887 if (DBG) loge("Exception trying to add a route: " + e); 1888 return false; 1889 } 1890 } else { 1891 // if we remove this one and there are no more like it, then refcount==0 and 1892 // we can remove it from the table 1893 if (toDefaultTable) { 1894 synchronized (mRoutesLock) { 1895 mAddedRoutes.remove(r); 1896 if (mAddedRoutes.contains(r) == false) { 1897 if (VDBG) log("Removing " + r + " for interface " + ifaceName); 1898 try { 1899 if (legacy) { 1900 mNetd.removeLegacyRouteForNetId(netId, r, uid); 1901 } else { 1902 mNetd.removeRoute(netId, r); 1903 } 1904 LinkAddress dest = r.getDestination(); 1905 if (mExemptAddresses.contains(dest)) { 1906 mNetd.clearHostExemption(dest); 1907 mExemptAddresses.remove(dest); 1908 } 1909 } catch (Exception e) { 1910 // never crash - catch them all 1911 if (VDBG) loge("Exception trying to remove a route: " + e); 1912 return false; 1913 } 1914 } else { 1915 if (VDBG) log("not removing " + r + " as it's still in use"); 1916 } 1917 } 1918 } else { 1919 if (VDBG) log("Removing " + r + " for interface " + ifaceName); 1920 try { 1921 if (legacy) { 1922 mNetd.removeLegacyRouteForNetId(netId, r, uid); 1923 } else { 1924 mNetd.removeRoute(netId, r); 1925 } 1926 } catch (Exception e) { 1927 // never crash - catch them all 1928 if (VDBG) loge("Exception trying to remove a route: " + e); 1929 return false; 1930 } 1931 } 1932 } 1933 return true; 1934 } 1935 1936 public void setDataDependency(int networkType, boolean met) { 1937 enforceConnectivityInternalPermission(); 1938 1939 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_DEPENDENCY_MET, 1940 (met ? ENABLED : DISABLED), networkType)); 1941 } 1942 1943 private void handleSetDependencyMet(int networkType, boolean met) { 1944 if (mNetTrackers[networkType] != null) { 1945 if (DBG) { 1946 log("handleSetDependencyMet(" + networkType + ", " + met + ")"); 1947 } 1948 mNetTrackers[networkType].setDependencyMet(met); 1949 } 1950 } 1951 1952 private INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() { 1953 @Override 1954 public void onUidRulesChanged(int uid, int uidRules) { 1955 // caller is NPMS, since we only register with them 1956 if (LOGD_RULES) { 1957 log("onUidRulesChanged(uid=" + uid + ", uidRules=" + uidRules + ")"); 1958 } 1959 1960 synchronized (mRulesLock) { 1961 // skip update when we've already applied rules 1962 final int oldRules = mUidRules.get(uid, RULE_ALLOW_ALL); 1963 if (oldRules == uidRules) return; 1964 1965 mUidRules.put(uid, uidRules); 1966 } 1967 1968 // TODO: notify UID when it has requested targeted updates 1969 } 1970 1971 @Override 1972 public void onMeteredIfacesChanged(String[] meteredIfaces) { 1973 // caller is NPMS, since we only register with them 1974 if (LOGD_RULES) { 1975 log("onMeteredIfacesChanged(ifaces=" + Arrays.toString(meteredIfaces) + ")"); 1976 } 1977 1978 synchronized (mRulesLock) { 1979 mMeteredIfaces.clear(); 1980 for (String iface : meteredIfaces) { 1981 mMeteredIfaces.add(iface); 1982 } 1983 } 1984 } 1985 1986 @Override 1987 public void onRestrictBackgroundChanged(boolean restrictBackground) { 1988 // caller is NPMS, since we only register with them 1989 if (LOGD_RULES) { 1990 log("onRestrictBackgroundChanged(restrictBackground=" + restrictBackground + ")"); 1991 } 1992 1993 // kick off connectivity change broadcast for active network, since 1994 // global background policy change is radical. 1995 final int networkType = mActiveDefaultNetwork; 1996 if (isNetworkTypeValid(networkType)) { 1997 final NetworkStateTracker tracker = mNetTrackers[networkType]; 1998 if (tracker != null) { 1999 final NetworkInfo info = tracker.getNetworkInfo(); 2000 if (info != null && info.isConnected()) { 2001 sendConnectedBroadcast(info); 2002 } 2003 } 2004 } 2005 } 2006 }; 2007 2008 @Override 2009 public void setPolicyDataEnable(int networkType, boolean enabled) { 2010 // only someone like NPMS should only be calling us 2011 mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); 2012 2013 mHandler.sendMessage(mHandler.obtainMessage( 2014 EVENT_SET_POLICY_DATA_ENABLE, networkType, (enabled ? ENABLED : DISABLED))); 2015 } 2016 2017 private void handleSetPolicyDataEnable(int networkType, boolean enabled) { 2018 // TODO - handle this passing to factories 2019// if (isNetworkTypeValid(networkType)) { 2020// final NetworkStateTracker tracker = mNetTrackers[networkType]; 2021// if (tracker != null) { 2022// tracker.setPolicyDataEnable(enabled); 2023// } 2024// } 2025 } 2026 2027 private void enforceAccessPermission() { 2028 mContext.enforceCallingOrSelfPermission( 2029 android.Manifest.permission.ACCESS_NETWORK_STATE, 2030 "ConnectivityService"); 2031 } 2032 2033 private void enforceChangePermission() { 2034 mContext.enforceCallingOrSelfPermission( 2035 android.Manifest.permission.CHANGE_NETWORK_STATE, 2036 "ConnectivityService"); 2037 } 2038 2039 // TODO Make this a special check when it goes public 2040 private void enforceTetherChangePermission() { 2041 mContext.enforceCallingOrSelfPermission( 2042 android.Manifest.permission.CHANGE_NETWORK_STATE, 2043 "ConnectivityService"); 2044 } 2045 2046 private void enforceTetherAccessPermission() { 2047 mContext.enforceCallingOrSelfPermission( 2048 android.Manifest.permission.ACCESS_NETWORK_STATE, 2049 "ConnectivityService"); 2050 } 2051 2052 private void enforceConnectivityInternalPermission() { 2053 mContext.enforceCallingOrSelfPermission( 2054 android.Manifest.permission.CONNECTIVITY_INTERNAL, 2055 "ConnectivityService"); 2056 } 2057 2058 private void enforceMarkNetworkSocketPermission() { 2059 //Media server special case 2060 if (Binder.getCallingUid() == Process.MEDIA_UID) { 2061 return; 2062 } 2063 mContext.enforceCallingOrSelfPermission( 2064 android.Manifest.permission.MARK_NETWORK_SOCKET, 2065 "ConnectivityService"); 2066 } 2067 2068 /** 2069 * Handle a {@code DISCONNECTED} event. If this pertains to the non-active 2070 * network, we ignore it. If it is for the active network, we send out a 2071 * broadcast. But first, we check whether it might be possible to connect 2072 * to a different network. 2073 * @param info the {@code NetworkInfo} for the network 2074 */ 2075 private void handleDisconnect(NetworkInfo info) { 2076 2077 int prevNetType = info.getType(); 2078 2079 mNetTrackers[prevNetType].setTeardownRequested(false); 2080 int thisNetId = mNetTrackers[prevNetType].getNetwork().netId; 2081 2082 // Remove idletimer previously setup in {@code handleConnect} 2083// Already in place in new function. This is dead code. 2084// if (mNetConfigs[prevNetType].isDefault()) { 2085// removeDataActivityTracking(prevNetType); 2086// } 2087 2088 /* 2089 * If the disconnected network is not the active one, then don't report 2090 * this as a loss of connectivity. What probably happened is that we're 2091 * getting the disconnect for a network that we explicitly disabled 2092 * in accordance with network preference policies. 2093 */ 2094 if (!mNetConfigs[prevNetType].isDefault()) { 2095 List<Integer> pids = mNetRequestersPids[prevNetType]; 2096 for (Integer pid : pids) { 2097 // will remove them because the net's no longer connected 2098 // need to do this now as only now do we know the pids and 2099 // can properly null things that are no longer referenced. 2100 reassessPidDns(pid.intValue(), false); 2101 } 2102 } 2103 2104 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 2105 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 2106 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 2107 if (info.isFailover()) { 2108 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 2109 info.setFailover(false); 2110 } 2111 if (info.getReason() != null) { 2112 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 2113 } 2114 if (info.getExtraInfo() != null) { 2115 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 2116 info.getExtraInfo()); 2117 } 2118 2119 if (mNetConfigs[prevNetType].isDefault()) { 2120 tryFailover(prevNetType); 2121 if (mActiveDefaultNetwork != -1) { 2122 NetworkInfo switchTo = mNetTrackers[mActiveDefaultNetwork].getNetworkInfo(); 2123 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, switchTo); 2124 } else { 2125 mDefaultInetConditionPublished = 0; // we're not connected anymore 2126 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 2127 } 2128 } 2129 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 2130 2131 // Reset interface if no other connections are using the same interface 2132 boolean doReset = true; 2133 LinkProperties linkProperties = mNetTrackers[prevNetType].getLinkProperties(); 2134 if (linkProperties != null) { 2135 String oldIface = linkProperties.getInterfaceName(); 2136 if (TextUtils.isEmpty(oldIface) == false) { 2137 for (NetworkStateTracker networkStateTracker : mNetTrackers) { 2138 if (networkStateTracker == null) continue; 2139 NetworkInfo networkInfo = networkStateTracker.getNetworkInfo(); 2140 if (networkInfo.isConnected() && networkInfo.getType() != prevNetType) { 2141 LinkProperties l = networkStateTracker.getLinkProperties(); 2142 if (l == null) continue; 2143 if (oldIface.equals(l.getInterfaceName())) { 2144 doReset = false; 2145 break; 2146 } 2147 } 2148 } 2149 } 2150 } 2151 2152 // do this before we broadcast the change 2153// Already done in new function. This is dead code. 2154// handleConnectivityChange(prevNetType, doReset); 2155 2156 final Intent immediateIntent = new Intent(intent); 2157 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 2158 sendStickyBroadcast(immediateIntent); 2159 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 2160 /* 2161 * If the failover network is already connected, then immediately send 2162 * out a followup broadcast indicating successful failover 2163 */ 2164 if (mActiveDefaultNetwork != -1) { 2165 sendConnectedBroadcastDelayed(mNetTrackers[mActiveDefaultNetwork].getNetworkInfo(), 2166 getConnectivityChangeDelay()); 2167 } 2168 try { 2169// mNetd.removeNetwork(thisNetId); 2170 } catch (Exception e) { 2171 loge("Exception removing network: " + e); 2172 } finally { 2173 mNetTrackers[prevNetType].setNetId(INVALID_NET_ID); 2174 } 2175 } 2176 2177 private void tryFailover(int prevNetType) { 2178 /* 2179 * If this is a default network, check if other defaults are available. 2180 * Try to reconnect on all available and let them hash it out when 2181 * more than one connects. 2182 */ 2183 if (mNetConfigs[prevNetType].isDefault()) { 2184 if (mActiveDefaultNetwork == prevNetType) { 2185 if (DBG) { 2186 log("tryFailover: set mActiveDefaultNetwork=-1, prevNetType=" + prevNetType); 2187 } 2188 mActiveDefaultNetwork = -1; 2189 try { 2190 mNetd.clearDefaultNetId(); 2191 } catch (Exception e) { 2192 loge("Exception clearing default network :" + e); 2193 } 2194 } 2195 2196 // don't signal a reconnect for anything lower or equal priority than our 2197 // current connected default 2198 // TODO - don't filter by priority now - nice optimization but risky 2199// int currentPriority = -1; 2200// if (mActiveDefaultNetwork != -1) { 2201// currentPriority = mNetConfigs[mActiveDefaultNetwork].mPriority; 2202// } 2203 2204 for (int checkType=0; checkType <= ConnectivityManager.MAX_NETWORK_TYPE; checkType++) { 2205 if (checkType == prevNetType) continue; 2206 if (mNetConfigs[checkType] == null) continue; 2207 if (!mNetConfigs[checkType].isDefault()) continue; 2208 if (mNetTrackers[checkType] == null) continue; 2209 2210// Enabling the isAvailable() optimization caused mobile to not get 2211// selected if it was in the middle of error handling. Specifically 2212// a moble connection that took 30 seconds to complete the DEACTIVATE_DATA_CALL 2213// would not be available and we wouldn't get connected to anything. 2214// So removing the isAvailable() optimization below for now. TODO: This 2215// optimization should work and we need to investigate why it doesn't work. 2216// This could be related to how DEACTIVATE_DATA_CALL is reporting its 2217// complete before it is really complete. 2218 2219// if (!mNetTrackers[checkType].isAvailable()) continue; 2220 2221// if (currentPriority >= mNetConfigs[checkType].mPriority) continue; 2222 2223 NetworkStateTracker checkTracker = mNetTrackers[checkType]; 2224 NetworkInfo checkInfo = checkTracker.getNetworkInfo(); 2225 if (!checkInfo.isConnectedOrConnecting() || checkTracker.isTeardownRequested()) { 2226 checkInfo.setFailover(true); 2227 checkTracker.reconnect(); 2228 } 2229 if (DBG) log("Attempting to switch to " + checkInfo.getTypeName()); 2230 } 2231 } 2232 } 2233 2234 public void sendConnectedBroadcast(NetworkInfo info) { 2235 enforceConnectivityInternalPermission(); 2236 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 2237 sendGeneralBroadcast(info, CONNECTIVITY_ACTION); 2238 } 2239 2240 private void sendConnectedBroadcastDelayed(NetworkInfo info, int delayMs) { 2241 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 2242 sendGeneralBroadcastDelayed(info, CONNECTIVITY_ACTION, delayMs); 2243 } 2244 2245 private void sendInetConditionBroadcast(NetworkInfo info) { 2246 sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION); 2247 } 2248 2249 private Intent makeGeneralIntent(NetworkInfo info, String bcastType) { 2250 if (mLockdownTracker != null) { 2251 info = mLockdownTracker.augmentNetworkInfo(info); 2252 } 2253 2254 Intent intent = new Intent(bcastType); 2255 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 2256 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 2257 if (info.isFailover()) { 2258 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 2259 info.setFailover(false); 2260 } 2261 if (info.getReason() != null) { 2262 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 2263 } 2264 if (info.getExtraInfo() != null) { 2265 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 2266 info.getExtraInfo()); 2267 } 2268 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 2269 return intent; 2270 } 2271 2272 private void sendGeneralBroadcast(NetworkInfo info, String bcastType) { 2273 sendStickyBroadcast(makeGeneralIntent(info, bcastType)); 2274 } 2275 2276 private void sendGeneralBroadcastDelayed(NetworkInfo info, String bcastType, int delayMs) { 2277 sendStickyBroadcastDelayed(makeGeneralIntent(info, bcastType), delayMs); 2278 } 2279 2280 private void sendDataActivityBroadcast(int deviceType, boolean active, long tsNanos) { 2281 Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); 2282 intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); 2283 intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); 2284 intent.putExtra(ConnectivityManager.EXTRA_REALTIME_NS, tsNanos); 2285 final long ident = Binder.clearCallingIdentity(); 2286 try { 2287 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, 2288 RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); 2289 } finally { 2290 Binder.restoreCallingIdentity(ident); 2291 } 2292 } 2293 2294 private void sendStickyBroadcast(Intent intent) { 2295 synchronized(this) { 2296 if (!mSystemReady) { 2297 mInitialBroadcast = new Intent(intent); 2298 } 2299 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2300 if (VDBG) { 2301 log("sendStickyBroadcast: action=" + intent.getAction()); 2302 } 2303 2304 final long ident = Binder.clearCallingIdentity(); 2305 try { 2306 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2307 } finally { 2308 Binder.restoreCallingIdentity(ident); 2309 } 2310 } 2311 } 2312 2313 private void sendStickyBroadcastDelayed(Intent intent, int delayMs) { 2314 if (delayMs <= 0) { 2315 sendStickyBroadcast(intent); 2316 } else { 2317 if (VDBG) { 2318 log("sendStickyBroadcastDelayed: delayMs=" + delayMs + ", action=" 2319 + intent.getAction()); 2320 } 2321 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2322 EVENT_SEND_STICKY_BROADCAST_INTENT, intent), delayMs); 2323 } 2324 } 2325 2326 void systemReady() { 2327 mCaptivePortalTracker = CaptivePortalTracker.makeCaptivePortalTracker(mContext, this); 2328 loadGlobalProxy(); 2329 2330 synchronized(this) { 2331 mSystemReady = true; 2332 if (mInitialBroadcast != null) { 2333 mContext.sendStickyBroadcastAsUser(mInitialBroadcast, UserHandle.ALL); 2334 mInitialBroadcast = null; 2335 } 2336 } 2337 // load the global proxy at startup 2338 mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY)); 2339 2340 // Try bringing up tracker, but if KeyStore isn't ready yet, wait 2341 // for user to unlock device. 2342 if (!updateLockdownVpn()) { 2343 final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_PRESENT); 2344 mContext.registerReceiver(mUserPresentReceiver, filter); 2345 } 2346 } 2347 2348 private BroadcastReceiver mUserPresentReceiver = new BroadcastReceiver() { 2349 @Override 2350 public void onReceive(Context context, Intent intent) { 2351 // Try creating lockdown tracker, since user present usually means 2352 // unlocked keystore. 2353 if (updateLockdownVpn()) { 2354 mContext.unregisterReceiver(this); 2355 } 2356 } 2357 }; 2358 2359 private boolean isNewNetTypePreferredOverCurrentNetType(int type) { 2360 if (((type != mNetworkPreference) 2361 && (mNetConfigs[mActiveDefaultNetwork].priority > mNetConfigs[type].priority)) 2362 || (mNetworkPreference == mActiveDefaultNetwork)) { 2363 return false; 2364 } 2365 return true; 2366 } 2367 2368 private void handleConnect(NetworkInfo info) { 2369 final int newNetType = info.getType(); 2370 2371 // snapshot isFailover, because sendConnectedBroadcast() resets it 2372 boolean isFailover = info.isFailover(); 2373 final NetworkStateTracker thisNet = mNetTrackers[newNetType]; 2374 final String thisIface = thisNet.getLinkProperties().getInterfaceName(); 2375 2376 if (VDBG) { 2377 log("handleConnect: E newNetType=" + newNetType + " thisIface=" + thisIface 2378 + " isFailover" + isFailover); 2379 } 2380 2381 // if this is a default net and other default is running 2382 // kill the one not preferred 2383 if (mNetConfigs[newNetType].isDefault()) { 2384 if (mActiveDefaultNetwork != -1 && mActiveDefaultNetwork != newNetType) { 2385 if (isNewNetTypePreferredOverCurrentNetType(newNetType)) { 2386 String teardownPolicy = SystemProperties.get("net.teardownPolicy"); 2387 if (TextUtils.equals(teardownPolicy, "keep") == false) { 2388 // tear down the other 2389 NetworkStateTracker otherNet = 2390 mNetTrackers[mActiveDefaultNetwork]; 2391 if (DBG) { 2392 log("Policy requires " + otherNet.getNetworkInfo().getTypeName() + 2393 " teardown"); 2394 } 2395 if (!teardown(otherNet)) { 2396 loge("Network declined teardown request"); 2397 teardown(thisNet); 2398 return; 2399 } 2400 } else { 2401 //TODO - remove 2402 loge("network teardown skipped due to net.teardownPolicy setting"); 2403 } 2404 } else { 2405 // don't accept this one 2406 if (VDBG) { 2407 log("Not broadcasting CONNECT_ACTION " + 2408 "to torn down network " + info.getTypeName()); 2409 } 2410 teardown(thisNet); 2411 return; 2412 } 2413 } 2414 int thisNetId = nextNetId(); 2415 thisNet.setNetId(thisNetId); 2416 try { 2417// mNetd.createNetwork(thisNetId, thisIface); 2418 } catch (Exception e) { 2419 loge("Exception creating network :" + e); 2420 teardown(thisNet); 2421 return; 2422 } 2423// Already in place in new function. This is dead code. 2424// setupDataActivityTracking(newNetType); 2425 synchronized (ConnectivityService.this) { 2426 // have a new default network, release the transition wakelock in a second 2427 // if it's held. The second pause is to allow apps to reconnect over the 2428 // new network 2429 if (mNetTransitionWakeLock.isHeld()) { 2430 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2431 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 2432 mNetTransitionWakeLockSerialNumber, 0), 2433 1000); 2434 } 2435 } 2436 mActiveDefaultNetwork = newNetType; 2437 try { 2438 mNetd.setDefaultNetId(thisNetId); 2439 } catch (Exception e) { 2440 loge("Exception setting default network :" + e); 2441 } 2442 // this will cause us to come up initially as unconnected and switching 2443 // to connected after our normal pause unless somebody reports us as reall 2444 // disconnected 2445 mDefaultInetConditionPublished = 0; 2446 mDefaultConnectionSequence++; 2447 mInetConditionChangeInFlight = false; 2448 // Don't do this - if we never sign in stay, grey 2449 //reportNetworkCondition(mActiveDefaultNetwork, 100); 2450 updateNetworkSettings(thisNet); 2451 } else { 2452 int thisNetId = nextNetId(); 2453 thisNet.setNetId(thisNetId); 2454 try { 2455// mNetd.createNetwork(thisNetId, thisIface); 2456 } catch (Exception e) { 2457 loge("Exception creating network :" + e); 2458 teardown(thisNet); 2459 return; 2460 } 2461 } 2462 thisNet.setTeardownRequested(false); 2463// Already in place in new function. This is dead code. 2464// updateMtuSizeSettings(thisNet); 2465// handleConnectivityChange(newNetType, false); 2466 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 2467 2468 // notify battery stats service about this network 2469 if (thisIface != null) { 2470 try { 2471 BatteryStatsService.getService().noteNetworkInterfaceType(thisIface, newNetType); 2472 } catch (RemoteException e) { 2473 // ignored; service lives in system_server 2474 } 2475 } 2476 } 2477 2478 /** @hide */ 2479 @Override 2480 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 2481 enforceConnectivityInternalPermission(); 2482 if (DBG) log("captivePortalCheckCompleted: ni=" + info + " captive=" + isCaptivePortal); 2483// mNetTrackers[info.getType()].captivePortalCheckCompleted(isCaptivePortal); 2484 } 2485 2486 /** 2487 * Setup data activity tracking for the given network. 2488 * 2489 * Every {@code setupDataActivityTracking} should be paired with a 2490 * {@link #removeDataActivityTracking} for cleanup. 2491 */ 2492 private void setupDataActivityTracking(NetworkAgentInfo networkAgent) { 2493 final String iface = networkAgent.linkProperties.getInterfaceName(); 2494 2495 final int timeout; 2496 int type = ConnectivityManager.TYPE_NONE; 2497 2498 if (networkAgent.networkCapabilities.hasTransport( 2499 NetworkCapabilities.TRANSPORT_CELLULAR)) { 2500 timeout = Settings.Global.getInt(mContext.getContentResolver(), 2501 Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, 2502 5); 2503 type = ConnectivityManager.TYPE_MOBILE; 2504 } else if (networkAgent.networkCapabilities.hasTransport( 2505 NetworkCapabilities.TRANSPORT_WIFI)) { 2506 timeout = Settings.Global.getInt(mContext.getContentResolver(), 2507 Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, 2508 0); 2509 type = ConnectivityManager.TYPE_WIFI; 2510 } else { 2511 // do not track any other networks 2512 timeout = 0; 2513 } 2514 2515 if (timeout > 0 && iface != null && type != ConnectivityManager.TYPE_NONE) { 2516 try { 2517 mNetd.addIdleTimer(iface, timeout, type); 2518 } catch (Exception e) { 2519 // You shall not crash! 2520 loge("Exception in setupDataActivityTracking " + e); 2521 } 2522 } 2523 } 2524 2525 /** 2526 * Remove data activity tracking when network disconnects. 2527 */ 2528 private void removeDataActivityTracking(NetworkAgentInfo networkAgent) { 2529 final String iface = networkAgent.linkProperties.getInterfaceName(); 2530 final NetworkCapabilities caps = networkAgent.networkCapabilities; 2531 2532 if (iface != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) || 2533 caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))) { 2534 try { 2535 // the call fails silently if no idletimer setup for this interface 2536 mNetd.removeIdleTimer(iface); 2537 } catch (Exception e) { 2538 loge("Exception in removeDataActivityTracking " + e); 2539 } 2540 } 2541 } 2542 2543 /** 2544 * After a change in the connectivity state of a network. We're mainly 2545 * concerned with making sure that the list of DNS servers is set up 2546 * according to which networks are connected, and ensuring that the 2547 * right routing table entries exist. 2548 * 2549 * TODO - delete when we're sure all this functionallity is captured. 2550 */ 2551 private void handleConnectivityChange(int netType, LinkProperties curLp, boolean doReset) { 2552 int resetMask = doReset ? NetworkUtils.RESET_ALL_ADDRESSES : 0; 2553 boolean exempt = ConnectivityManager.isNetworkTypeExempt(netType); 2554 if (VDBG) { 2555 log("handleConnectivityChange: netType=" + netType + " doReset=" + doReset 2556 + " resetMask=" + resetMask); 2557 } 2558 2559 /* 2560 * If a non-default network is enabled, add the host routes that 2561 * will allow it's DNS servers to be accessed. 2562 */ 2563 handleDnsConfigurationChange(netType); 2564 2565 LinkProperties newLp = null; 2566 2567 if (mNetTrackers[netType].getNetworkInfo().isConnected()) { 2568 newLp = mNetTrackers[netType].getLinkProperties(); 2569 if (VDBG) { 2570 log("handleConnectivityChange: changed linkProperty[" + netType + "]:" + 2571 " doReset=" + doReset + " resetMask=" + resetMask + 2572 "\n curLp=" + curLp + 2573 "\n newLp=" + newLp); 2574 } 2575 2576 if (curLp != null) { 2577 if (curLp.isIdenticalInterfaceName(newLp)) { 2578 CompareResult<LinkAddress> car = curLp.compareAddresses(newLp); 2579 if ((car.removed.size() != 0) || (car.added.size() != 0)) { 2580 for (LinkAddress linkAddr : car.removed) { 2581 if (linkAddr.getAddress() instanceof Inet4Address) { 2582 resetMask |= NetworkUtils.RESET_IPV4_ADDRESSES; 2583 } 2584 if (linkAddr.getAddress() instanceof Inet6Address) { 2585 resetMask |= NetworkUtils.RESET_IPV6_ADDRESSES; 2586 } 2587 } 2588 if (DBG) { 2589 log("handleConnectivityChange: addresses changed" + 2590 " linkProperty[" + netType + "]:" + " resetMask=" + resetMask + 2591 "\n car=" + car); 2592 } 2593 } else { 2594 if (VDBG) { 2595 log("handleConnectivityChange: addresses are the same reset per" + 2596 " doReset linkProperty[" + netType + "]:" + 2597 " resetMask=" + resetMask); 2598 } 2599 } 2600 } else { 2601 resetMask = NetworkUtils.RESET_ALL_ADDRESSES; 2602 if (DBG) { 2603 log("handleConnectivityChange: interface not not equivalent reset both" + 2604 " linkProperty[" + netType + "]:" + 2605 " resetMask=" + resetMask); 2606 } 2607 } 2608 } 2609 if (mNetConfigs[netType].isDefault()) { 2610 handleApplyDefaultProxy(newLp.getHttpProxy()); 2611 } 2612 } else { 2613 if (VDBG) { 2614 log("handleConnectivityChange: changed linkProperty[" + netType + "]:" + 2615 " doReset=" + doReset + " resetMask=" + resetMask + 2616 "\n curLp=" + curLp + 2617 "\n newLp= null"); 2618 } 2619 } 2620 mCurrentLinkProperties[netType] = newLp; 2621 boolean resetDns = updateRoutes(newLp, curLp, mNetConfigs[netType].isDefault(), exempt, 2622 mNetTrackers[netType].getNetwork().netId); 2623 2624 if (resetMask != 0 || resetDns) { 2625 if (VDBG) log("handleConnectivityChange: resetting"); 2626 if (curLp != null) { 2627 if (VDBG) log("handleConnectivityChange: resetting curLp=" + curLp); 2628 for (String iface : curLp.getAllInterfaceNames()) { 2629 if (TextUtils.isEmpty(iface) == false) { 2630 if (resetMask != 0) { 2631 if (DBG) log("resetConnections(" + iface + ", " + resetMask + ")"); 2632 NetworkUtils.resetConnections(iface, resetMask); 2633 2634 // Tell VPN the interface is down. It is a temporary 2635 // but effective fix to make VPN aware of the change. 2636 if ((resetMask & NetworkUtils.RESET_IPV4_ADDRESSES) != 0) { 2637 synchronized(mVpns) { 2638 for (int i = 0; i < mVpns.size(); i++) { 2639 mVpns.valueAt(i).interfaceStatusChanged(iface, false); 2640 } 2641 } 2642 } 2643 } 2644 } else { 2645 loge("Can't reset connection for type "+netType); 2646 } 2647 } 2648 if (resetDns) { 2649 flushVmDnsCache(); 2650 if (VDBG) log("resetting DNS cache for type " + netType); 2651 try { 2652 mNetd.flushNetworkDnsCache(mNetTrackers[netType].getNetwork().netId); 2653 } catch (Exception e) { 2654 // never crash - catch them all 2655 if (DBG) loge("Exception resetting dns cache: " + e); 2656 } 2657 } 2658 } 2659 } 2660 2661 // TODO: Temporary notifying upstread change to Tethering. 2662 // @see bug/4455071 2663 /** Notify TetheringService if interface name has been changed. */ 2664 if (TextUtils.equals(mNetTrackers[netType].getNetworkInfo().getReason(), 2665 PhoneConstants.REASON_LINK_PROPERTIES_CHANGED)) { 2666 if (isTetheringSupported()) { 2667 mTethering.handleTetherIfaceChange(); 2668 } 2669 } 2670 } 2671 2672 /** 2673 * Add and remove routes using the old properties (null if not previously connected), 2674 * new properties (null if becoming disconnected). May even be double null, which 2675 * is a noop. 2676 * Uses isLinkDefault to determine if default routes should be set or conversely if 2677 * host routes should be set to the dns servers 2678 * returns a boolean indicating the routes changed 2679 */ 2680 private boolean updateRoutes(LinkProperties newLp, LinkProperties curLp, 2681 boolean isLinkDefault, boolean exempt, int netId) { 2682 Collection<RouteInfo> routesToAdd = null; 2683 CompareResult<InetAddress> dnsDiff = new CompareResult<InetAddress>(); 2684 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 2685 if (curLp != null) { 2686 // check for the delta between the current set and the new 2687 routeDiff = curLp.compareAllRoutes(newLp); 2688 dnsDiff = curLp.compareDnses(newLp); 2689 } else if (newLp != null) { 2690 routeDiff.added = newLp.getAllRoutes(); 2691 dnsDiff.added = newLp.getDnses(); 2692 } 2693 2694 boolean routesChanged = (routeDiff.removed.size() != 0 || routeDiff.added.size() != 0); 2695 2696 for (RouteInfo r : routeDiff.removed) { 2697 if (isLinkDefault || ! r.isDefaultRoute()) { 2698 if (VDBG) log("updateRoutes: default remove route r=" + r); 2699 removeRoute(curLp, r, TO_DEFAULT_TABLE, netId); 2700 } 2701 if (isLinkDefault == false) { 2702 // remove from a secondary route table 2703 removeRoute(curLp, r, TO_SECONDARY_TABLE, netId); 2704 } 2705 } 2706 2707 for (RouteInfo r : routeDiff.added) { 2708 if (isLinkDefault || ! r.isDefaultRoute()) { 2709 addRoute(newLp, r, TO_DEFAULT_TABLE, exempt, netId); 2710 } else { 2711 // add to a secondary route table 2712 addRoute(newLp, r, TO_SECONDARY_TABLE, UNEXEMPT, netId); 2713 2714 // many radios add a default route even when we don't want one. 2715 // remove the default route unless somebody else has asked for it 2716 String ifaceName = newLp.getInterfaceName(); 2717 synchronized (mRoutesLock) { 2718 if (!TextUtils.isEmpty(ifaceName) && !mAddedRoutes.contains(r)) { 2719 if (VDBG) log("Removing " + r + " for interface " + ifaceName); 2720 try { 2721 mNetd.removeRoute(netId, r); 2722 } catch (Exception e) { 2723 // never crash - catch them all 2724 if (DBG) loge("Exception trying to remove a route: " + e); 2725 } 2726 } 2727 } 2728 } 2729 } 2730 2731 return routesChanged; 2732 } 2733 2734 /** 2735 * Reads the network specific MTU size from reources. 2736 * and set it on it's iface. 2737 */ 2738 private void updateMtu(LinkProperties newLp, LinkProperties oldLp) { 2739 final String iface = newLp.getInterfaceName(); 2740 final int mtu = newLp.getMtu(); 2741 if (oldLp != null && newLp.isIdenticalMtu(oldLp)) { 2742 if (VDBG) log("identical MTU - not setting"); 2743 return; 2744 } 2745 2746 if (mtu < 68 || mtu > 10000) { 2747 loge("Unexpected mtu value: " + mtu + ", " + iface); 2748 return; 2749 } 2750 2751 try { 2752 if (VDBG) log("Setting MTU size: " + iface + ", " + mtu); 2753 mNetd.setMtu(iface, mtu); 2754 } catch (Exception e) { 2755 Slog.e(TAG, "exception in setMtu()" + e); 2756 } 2757 } 2758 2759 /** 2760 * Reads the network specific TCP buffer sizes from SystemProperties 2761 * net.tcp.buffersize.[default|wifi|umts|edge|gprs] and set them for system 2762 * wide use 2763 */ 2764 private void updateNetworkSettings(NetworkStateTracker nt) { 2765 String key = nt.getTcpBufferSizesPropName(); 2766 String bufferSizes = key == null ? null : SystemProperties.get(key); 2767 2768 if (TextUtils.isEmpty(bufferSizes)) { 2769 if (VDBG) log(key + " not found in system properties. Using defaults"); 2770 2771 // Setting to default values so we won't be stuck to previous values 2772 key = "net.tcp.buffersize.default"; 2773 bufferSizes = SystemProperties.get(key); 2774 } 2775 2776 // Set values in kernel 2777 if (bufferSizes.length() != 0) { 2778 if (VDBG) { 2779 log("Setting TCP values: [" + bufferSizes 2780 + "] which comes from [" + key + "]"); 2781 } 2782 setBufferSize(bufferSizes); 2783 } 2784 2785 final String defaultRwndKey = "net.tcp.default_init_rwnd"; 2786 int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0); 2787 Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(), 2788 Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue); 2789 final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd"; 2790 if (rwndValue != 0) { 2791 SystemProperties.set(sysctlKey, rwndValue.toString()); 2792 } 2793 } 2794 2795 /** 2796 * Writes TCP buffer sizes to /sys/kernel/ipv4/tcp_[r/w]mem_[min/def/max] 2797 * which maps to /proc/sys/net/ipv4/tcp_rmem and tcpwmem 2798 * 2799 * @param bufferSizes in the format of "readMin, readInitial, readMax, 2800 * writeMin, writeInitial, writeMax" 2801 */ 2802 private void setBufferSize(String bufferSizes) { 2803 try { 2804 String[] values = bufferSizes.split(","); 2805 2806 if (values.length == 6) { 2807 final String prefix = "/sys/kernel/ipv4/tcp_"; 2808 FileUtils.stringToFile(prefix + "rmem_min", values[0]); 2809 FileUtils.stringToFile(prefix + "rmem_def", values[1]); 2810 FileUtils.stringToFile(prefix + "rmem_max", values[2]); 2811 FileUtils.stringToFile(prefix + "wmem_min", values[3]); 2812 FileUtils.stringToFile(prefix + "wmem_def", values[4]); 2813 FileUtils.stringToFile(prefix + "wmem_max", values[5]); 2814 } else { 2815 loge("Invalid buffersize string: " + bufferSizes); 2816 } 2817 } catch (IOException e) { 2818 loge("Can't set tcp buffer sizes:" + e); 2819 } 2820 } 2821 2822 /** 2823 * Adjust the per-process dns entries (net.dns<x>.<pid>) based 2824 * on the highest priority active net which this process requested. 2825 * If there aren't any, clear it out 2826 */ 2827 private void reassessPidDns(int pid, boolean doBump) 2828 { 2829 if (VDBG) log("reassessPidDns for pid " + pid); 2830 Integer myPid = new Integer(pid); 2831 for(int i : mPriorityList) { 2832 if (mNetConfigs[i].isDefault()) { 2833 continue; 2834 } 2835 NetworkStateTracker nt = mNetTrackers[i]; 2836 if (nt.getNetworkInfo().isConnected() && 2837 !nt.isTeardownRequested()) { 2838 LinkProperties p = nt.getLinkProperties(); 2839 if (p == null) continue; 2840 if (mNetRequestersPids[i].contains(myPid)) { 2841 try { 2842 // TODO: Reimplement this via local variable in bionic. 2843 // mNetd.setDnsNetworkForPid(nt.getNetwork().netId, pid); 2844 } catch (Exception e) { 2845 Slog.e(TAG, "exception reasseses pid dns: " + e); 2846 } 2847 return; 2848 } 2849 } 2850 } 2851 // nothing found - delete 2852 try { 2853 // TODO: Reimplement this via local variable in bionic. 2854 // mNetd.clearDnsNetworkForPid(pid); 2855 } catch (Exception e) { 2856 Slog.e(TAG, "exception clear interface from pid: " + e); 2857 } 2858 } 2859 2860 private void flushVmDnsCache() { 2861 /* 2862 * Tell the VMs to toss their DNS caches 2863 */ 2864 Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE); 2865 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); 2866 /* 2867 * Connectivity events can happen before boot has completed ... 2868 */ 2869 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2870 final long ident = Binder.clearCallingIdentity(); 2871 try { 2872 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 2873 } finally { 2874 Binder.restoreCallingIdentity(ident); 2875 } 2876 } 2877 2878 // Caller must grab mDnsLock. 2879 private void updateDnsLocked(String network, int netId, 2880 Collection<InetAddress> dnses, String domains) { 2881 int last = 0; 2882 if (dnses.size() == 0 && mDefaultDns != null) { 2883 dnses = new ArrayList(); 2884 dnses.add(mDefaultDns); 2885 if (DBG) { 2886 loge("no dns provided for " + network + " - using " + mDefaultDns.getHostAddress()); 2887 } 2888 } 2889 2890 try { 2891 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), domains); 2892 2893 for (InetAddress dns : dnses) { 2894 ++last; 2895 String key = "net.dns" + last; 2896 String value = dns.getHostAddress(); 2897 SystemProperties.set(key, value); 2898 } 2899 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 2900 String key = "net.dns" + i; 2901 SystemProperties.set(key, ""); 2902 } 2903 mNumDnsEntries = last; 2904 } catch (Exception e) { 2905 loge("exception setting default dns interface: " + e); 2906 } 2907 } 2908 2909 private void handleDnsConfigurationChange(int netType) { 2910 // add default net's dns entries 2911 NetworkStateTracker nt = mNetTrackers[netType]; 2912 if (nt != null && nt.getNetworkInfo().isConnected() && !nt.isTeardownRequested()) { 2913 LinkProperties p = nt.getLinkProperties(); 2914 if (p == null) return; 2915 Collection<InetAddress> dnses = p.getDnses(); 2916 int netId = nt.getNetwork().netId; 2917 if (mNetConfigs[netType].isDefault()) { 2918 String network = nt.getNetworkInfo().getTypeName(); 2919 synchronized (mDnsLock) { 2920 updateDnsLocked(network, netId, dnses, p.getDomains()); 2921 } 2922 } else { 2923 try { 2924 mNetd.setDnsServersForNetwork(netId, 2925 NetworkUtils.makeStrings(dnses), p.getDomains()); 2926 } catch (Exception e) { 2927 if (DBG) loge("exception setting dns servers: " + e); 2928 } 2929 // set per-pid dns for attached secondary nets 2930 List<Integer> pids = mNetRequestersPids[netType]; 2931 for (Integer pid : pids) { 2932 try { 2933 // TODO: Reimplement this via local variable in bionic. 2934 // mNetd.setDnsNetworkForPid(netId, pid); 2935 } catch (Exception e) { 2936 Slog.e(TAG, "exception setting interface for pid: " + e); 2937 } 2938 } 2939 } 2940 flushVmDnsCache(); 2941 } 2942 } 2943 2944 @Override 2945 public int getRestoreDefaultNetworkDelay(int networkType) { 2946 String restoreDefaultNetworkDelayStr = SystemProperties.get( 2947 NETWORK_RESTORE_DELAY_PROP_NAME); 2948 if(restoreDefaultNetworkDelayStr != null && 2949 restoreDefaultNetworkDelayStr.length() != 0) { 2950 try { 2951 return Integer.valueOf(restoreDefaultNetworkDelayStr); 2952 } catch (NumberFormatException e) { 2953 } 2954 } 2955 // if the system property isn't set, use the value for the apn type 2956 int ret = RESTORE_DEFAULT_NETWORK_DELAY; 2957 2958 if ((networkType <= ConnectivityManager.MAX_NETWORK_TYPE) && 2959 (mNetConfigs[networkType] != null)) { 2960 ret = mNetConfigs[networkType].restoreTime; 2961 } 2962 return ret; 2963 } 2964 2965 @Override 2966 protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { 2967 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 2968 if (mContext.checkCallingOrSelfPermission( 2969 android.Manifest.permission.DUMP) 2970 != PackageManager.PERMISSION_GRANTED) { 2971 pw.println("Permission Denial: can't dump ConnectivityService " + 2972 "from from pid=" + Binder.getCallingPid() + ", uid=" + 2973 Binder.getCallingUid()); 2974 return; 2975 } 2976 2977 pw.println("NetworkFactories for:"); 2978 pw.increaseIndent(); 2979 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2980 pw.println(nfi.name); 2981 } 2982 pw.decreaseIndent(); 2983 pw.println(); 2984 2985 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 2986 pw.print("Active default network: "); 2987 if (defaultNai == null) { 2988 pw.println("none"); 2989 } else { 2990 pw.println(defaultNai.network.netId); 2991 } 2992 pw.println(); 2993 2994 pw.println("Current Networks:"); 2995 pw.increaseIndent(); 2996 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2997 pw.println(nai.toString()); 2998 pw.increaseIndent(); 2999 pw.println("Requests:"); 3000 pw.increaseIndent(); 3001 for (int i = 0; i < nai.networkRequests.size(); i++) { 3002 pw.println(nai.networkRequests.valueAt(i).toString()); 3003 } 3004 pw.decreaseIndent(); 3005 pw.println("Lingered:"); 3006 pw.increaseIndent(); 3007 for (NetworkRequest nr : nai.networkLingered) pw.println(nr.toString()); 3008 pw.decreaseIndent(); 3009 pw.decreaseIndent(); 3010 } 3011 pw.decreaseIndent(); 3012 pw.println(); 3013 3014 pw.println("Network Requests:"); 3015 pw.increaseIndent(); 3016 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 3017 pw.println(nri.toString()); 3018 } 3019 pw.println(); 3020 pw.decreaseIndent(); 3021 3022 synchronized (this) { 3023 pw.println("NetworkTranstionWakeLock is currently " + 3024 (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held."); 3025 pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy); 3026 } 3027 pw.println(); 3028 3029 mTethering.dump(fd, pw, args); 3030 3031 if (mInetLog != null) { 3032 pw.println(); 3033 pw.println("Inet condition reports:"); 3034 pw.increaseIndent(); 3035 for(int i = 0; i < mInetLog.size(); i++) { 3036 pw.println(mInetLog.get(i)); 3037 } 3038 pw.decreaseIndent(); 3039 } 3040 } 3041 3042 // must be stateless - things change under us. 3043 private class NetworkStateTrackerHandler extends Handler { 3044 public NetworkStateTrackerHandler(Looper looper) { 3045 super(looper); 3046 } 3047 3048 @Override 3049 public void handleMessage(Message msg) { 3050 NetworkInfo info; 3051 switch (msg.what) { 3052 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 3053 handleAsyncChannelHalfConnect(msg); 3054 break; 3055 } 3056 case AsyncChannel.CMD_CHANNEL_DISCONNECT: { 3057 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3058 if (nai != null) nai.asyncChannel.disconnect(); 3059 break; 3060 } 3061 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 3062 handleAsyncChannelDisconnected(msg); 3063 break; 3064 } 3065 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { 3066 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3067 if (nai == null) { 3068 loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); 3069 } else { 3070 updateCapabilities(nai, (NetworkCapabilities)msg.obj); 3071 } 3072 break; 3073 } 3074 case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { 3075 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3076 if (nai == null) { 3077 loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); 3078 } else { 3079 if (VDBG) log("Update of Linkproperties for " + nai.name()); 3080 LinkProperties oldLp = nai.linkProperties; 3081 nai.linkProperties = (LinkProperties)msg.obj; 3082 updateLinkProperties(nai, oldLp); 3083 } 3084 break; 3085 } 3086 case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { 3087 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3088 if (nai == null) { 3089 loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); 3090 break; 3091 } 3092 info = (NetworkInfo) msg.obj; 3093 updateNetworkInfo(nai, info); 3094 break; 3095 } 3096 case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { 3097 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3098 if (nai == null) { 3099 loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); 3100 break; 3101 } 3102 Integer score = (Integer) msg.obj; 3103 updateNetworkScore(nai, score); 3104 break; 3105 } 3106 case NetworkMonitor.EVENT_NETWORK_VALIDATED: { 3107 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 3108 handleConnectionValidated(nai); 3109 break; 3110 } 3111 case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { 3112 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 3113 handleLingerComplete(nai); 3114 break; 3115 } 3116 case NetworkStateTracker.EVENT_STATE_CHANGED: { 3117 info = (NetworkInfo) msg.obj; 3118 NetworkInfo.State state = info.getState(); 3119 3120 if (VDBG || (state == NetworkInfo.State.CONNECTED) || 3121 (state == NetworkInfo.State.DISCONNECTED) || 3122 (state == NetworkInfo.State.SUSPENDED)) { 3123 log("ConnectivityChange for " + 3124 info.getTypeName() + ": " + 3125 state + "/" + info.getDetailedState()); 3126 } 3127 3128 // Since mobile has the notion of a network/apn that can be used for 3129 // provisioning we need to check every time we're connected as 3130 // CaptiveProtalTracker won't detected it because DCT doesn't report it 3131 // as connected as ACTION_ANY_DATA_CONNECTION_STATE_CHANGED instead its 3132 // reported as ACTION_DATA_CONNECTION_CONNECTED_TO_PROVISIONING_APN. Which 3133 // is received by MDST and sent here as EVENT_STATE_CHANGED. 3134 if (ConnectivityManager.isNetworkTypeMobile(info.getType()) 3135 && (0 != Settings.Global.getInt(mContext.getContentResolver(), 3136 Settings.Global.DEVICE_PROVISIONED, 0)) 3137 && (((state == NetworkInfo.State.CONNECTED) 3138 && (info.getType() == ConnectivityManager.TYPE_MOBILE)) 3139 || info.isConnectedToProvisioningNetwork())) { 3140 log("ConnectivityChange checkMobileProvisioning for" 3141 + " TYPE_MOBILE or ProvisioningNetwork"); 3142 checkMobileProvisioning(CheckMp.MAX_TIMEOUT_MS); 3143 } 3144 3145 EventLogTags.writeConnectivityStateChanged( 3146 info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); 3147 3148 if (info.isConnectedToProvisioningNetwork()) { 3149 /** 3150 * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING 3151 * for now its an in between network, its a network that 3152 * is actually a default network but we don't want it to be 3153 * announced as such to keep background applications from 3154 * trying to use it. It turns out that some still try so we 3155 * take the additional step of clearing any default routes 3156 * to the link that may have incorrectly setup by the lower 3157 * levels. 3158 */ 3159 LinkProperties lp = getLinkPropertiesForTypeInternal(info.getType()); 3160 if (DBG) { 3161 log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); 3162 } 3163 3164 // Clear any default routes setup by the radio so 3165 // any activity by applications trying to use this 3166 // connection will fail until the provisioning network 3167 // is enabled. 3168 for (RouteInfo r : lp.getRoutes()) { 3169 removeRoute(lp, r, TO_DEFAULT_TABLE, 3170 mNetTrackers[info.getType()].getNetwork().netId); 3171 } 3172 } else if (state == NetworkInfo.State.DISCONNECTED) { 3173 } else if (state == NetworkInfo.State.SUSPENDED) { 3174 } else if (state == NetworkInfo.State.CONNECTED) { 3175 // handleConnect(info); 3176 } 3177 if (mLockdownTracker != null) { 3178 mLockdownTracker.onNetworkInfoChanged(info); 3179 } 3180 break; 3181 } 3182 case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { 3183 info = (NetworkInfo) msg.obj; 3184 // TODO: Temporary allowing network configuration 3185 // change not resetting sockets. 3186 // @see bug/4455071 3187 handleConnectivityChange(info.getType(), mCurrentLinkProperties[info.getType()], 3188 false); 3189 break; 3190 } 3191 case NetworkStateTracker.EVENT_NETWORK_SUBTYPE_CHANGED: { 3192 info = (NetworkInfo) msg.obj; 3193 int type = info.getType(); 3194 if (mNetConfigs[type].isDefault()) updateNetworkSettings(mNetTrackers[type]); 3195 break; 3196 } 3197 } 3198 } 3199 } 3200 3201 private void handleAsyncChannelHalfConnect(Message msg) { 3202 AsyncChannel ac = (AsyncChannel) msg.obj; 3203 if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { 3204 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 3205 if (VDBG) log("NetworkFactory connected"); 3206 // A network factory has connected. Send it all current NetworkRequests. 3207 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 3208 if (nri.isRequest == false) continue; 3209 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 3210 ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, 3211 (nai != null ? nai.currentScore : 0), 0, nri.request); 3212 } 3213 } else { 3214 loge("Error connecting NetworkFactory"); 3215 mNetworkFactoryInfos.remove(msg.obj); 3216 } 3217 } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { 3218 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 3219 if (VDBG) log("NetworkAgent connected"); 3220 // A network agent has requested a connection. Establish the connection. 3221 mNetworkAgentInfos.get(msg.replyTo).asyncChannel. 3222 sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 3223 } else { 3224 loge("Error connecting NetworkAgent"); 3225 NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); 3226 if (nai != null) { 3227 mNetworkForNetId.remove(nai.network.netId); 3228 mLegacyTypeTracker.remove(nai); 3229 } 3230 } 3231 } 3232 } 3233 private void handleAsyncChannelDisconnected(Message msg) { 3234 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3235 if (nai != null) { 3236 if (DBG) { 3237 log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); 3238 } 3239 // A network agent has disconnected. 3240 // Tell netd to clean up the configuration for this network 3241 // (routing rules, DNS, etc). 3242 try { 3243 mNetd.removeNetwork(nai.network.netId); 3244 } catch (Exception e) { 3245 loge("Exception removing network: " + e); 3246 } 3247 // TODO - if we move the logic to the network agent (have them disconnect 3248 // because they lost all their requests or because their score isn't good) 3249 // then they would disconnect organically, report their new state and then 3250 // disconnect the channel. 3251 if (nai.networkInfo.isConnected()) { 3252 nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, 3253 null, null); 3254 } 3255 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); 3256 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); 3257 mNetworkAgentInfos.remove(msg.replyTo); 3258 updateClat(null, nai.linkProperties, nai); 3259 mLegacyTypeTracker.remove(nai); 3260 mNetworkForNetId.remove(nai.network.netId); 3261 // Since we've lost the network, go through all the requests that 3262 // it was satisfying and see if any other factory can satisfy them. 3263 final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); 3264 for (int i = 0; i < nai.networkRequests.size(); i++) { 3265 NetworkRequest request = nai.networkRequests.valueAt(i); 3266 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); 3267 if (VDBG) { 3268 log(" checking request " + request + ", currentNetwork = " + 3269 (currentNetwork != null ? currentNetwork.name() : "null")); 3270 } 3271 if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { 3272 mNetworkForRequestId.remove(request.requestId); 3273 sendUpdatedScoreToFactories(request, 0); 3274 NetworkAgentInfo alternative = null; 3275 for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { 3276 NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); 3277 if (existing.networkInfo.isConnected() && 3278 request.networkCapabilities.satisfiedByNetworkCapabilities( 3279 existing.networkCapabilities) && 3280 (alternative == null || 3281 alternative.currentScore < existing.currentScore)) { 3282 alternative = existing; 3283 } 3284 } 3285 if (alternative != null && !toActivate.contains(alternative)) { 3286 toActivate.add(alternative); 3287 } 3288 } 3289 } 3290 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 3291 removeDataActivityTracking(nai); 3292 mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; 3293 } 3294 for (NetworkAgentInfo networkToActivate : toActivate) { 3295 networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 3296 } 3297 } 3298 } 3299 3300 private void handleRegisterNetworkRequest(Message msg) { 3301 final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); 3302 final NetworkCapabilities newCap = nri.request.networkCapabilities; 3303 int score = 0; 3304 3305 // Check for the best currently alive network that satisfies this request 3306 NetworkAgentInfo bestNetwork = null; 3307 for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { 3308 if (VDBG) log("handleRegisterNetworkRequest checking " + network.name()); 3309 if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { 3310 if (VDBG) log("apparently satisfied. currentScore=" + network.currentScore); 3311 if ((bestNetwork == null) || bestNetwork.currentScore < network.currentScore) { 3312 bestNetwork = network; 3313 } 3314 } 3315 } 3316 if (bestNetwork != null) { 3317 if (VDBG) log("using " + bestNetwork.name()); 3318 bestNetwork.addRequest(nri.request); 3319 int legacyType = nri.request.legacyType; 3320 if (legacyType != TYPE_NONE) { 3321 mLegacyTypeTracker.add(legacyType, bestNetwork); 3322 } 3323 notifyNetworkCallback(bestNetwork, nri); 3324 score = bestNetwork.currentScore; 3325 } 3326 mNetworkRequests.put(nri.request, nri); 3327 if (msg.what == EVENT_REGISTER_NETWORK_REQUEST) { 3328 if (DBG) log("sending new NetworkRequest to factories"); 3329 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 3330 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 3331 0, nri.request); 3332 } 3333 } 3334 } 3335 3336 private void handleReleaseNetworkRequest(NetworkRequest request) { 3337 if (DBG) log("releasing NetworkRequest " + request); 3338 NetworkRequestInfo nri = mNetworkRequests.remove(request); 3339 if (nri != null) { 3340 // tell the network currently servicing this that it's no longer interested 3341 NetworkAgentInfo affectedNetwork = mNetworkForRequestId.get(nri.request.requestId); 3342 if (affectedNetwork != null) { 3343 mNetworkForRequestId.remove(nri.request.requestId); 3344 affectedNetwork.networkRequests.remove(nri.request.requestId); 3345 if (VDBG) { 3346 log(" Removing from current network " + affectedNetwork.name() + ", leaving " + 3347 affectedNetwork.networkRequests.size() + " requests."); 3348 } 3349 } 3350 3351 if (nri.isRequest) { 3352 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 3353 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 3354 nri.request); 3355 } 3356 3357 if (affectedNetwork != null) { 3358 // check if this network still has live requests - otherwise, tear down 3359 // TODO - probably push this to the NF/NA 3360 boolean keep = false; 3361 for (int i = 0; i < affectedNetwork.networkRequests.size(); i++) { 3362 NetworkRequest r = affectedNetwork.networkRequests.valueAt(i); 3363 if (mNetworkRequests.get(r).isRequest) { 3364 keep = true; 3365 break; 3366 } 3367 } 3368 if (keep == false) { 3369 if (DBG) log("no live requests for " + affectedNetwork.name() + 3370 "; disconnecting"); 3371 affectedNetwork.asyncChannel.disconnect(); 3372 } 3373 } 3374 } 3375 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 3376 } 3377 } 3378 3379 private class InternalHandler extends Handler { 3380 public InternalHandler(Looper looper) { 3381 super(looper); 3382 } 3383 3384 @Override 3385 public void handleMessage(Message msg) { 3386 NetworkInfo info; 3387 switch (msg.what) { 3388 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 3389 String causedBy = null; 3390 synchronized (ConnectivityService.this) { 3391 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 3392 mNetTransitionWakeLock.isHeld()) { 3393 mNetTransitionWakeLock.release(); 3394 causedBy = mNetTransitionWakeLockCausedBy; 3395 } 3396 } 3397 if (causedBy != null) { 3398 log("NetTransition Wakelock for " + causedBy + " released by timeout"); 3399 } 3400 break; 3401 } 3402 case EVENT_RESTORE_DEFAULT_NETWORK: { 3403 FeatureUser u = (FeatureUser)msg.obj; 3404 u.expire(); 3405 break; 3406 } 3407 case EVENT_INET_CONDITION_CHANGE: { 3408 int netType = msg.arg1; 3409 int condition = msg.arg2; 3410 handleInetConditionChange(netType, condition); 3411 break; 3412 } 3413 case EVENT_INET_CONDITION_HOLD_END: { 3414 int netType = msg.arg1; 3415 int sequence = msg.arg2; 3416 handleInetConditionHoldEnd(netType, sequence); 3417 break; 3418 } 3419 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 3420 handleDeprecatedGlobalHttpProxy(); 3421 break; 3422 } 3423 case EVENT_SET_DEPENDENCY_MET: { 3424 boolean met = (msg.arg1 == ENABLED); 3425 handleSetDependencyMet(msg.arg2, met); 3426 break; 3427 } 3428 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 3429 Intent intent = (Intent)msg.obj; 3430 sendStickyBroadcast(intent); 3431 break; 3432 } 3433 case EVENT_SET_POLICY_DATA_ENABLE: { 3434 final int networkType = msg.arg1; 3435 final boolean enabled = msg.arg2 == ENABLED; 3436 handleSetPolicyDataEnable(networkType, enabled); 3437 break; 3438 } 3439 case EVENT_VPN_STATE_CHANGED: { 3440 if (mLockdownTracker != null) { 3441 mLockdownTracker.onVpnStateChanged((NetworkInfo) msg.obj); 3442 } 3443 break; 3444 } 3445 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 3446 int tag = mEnableFailFastMobileDataTag.get(); 3447 if (msg.arg1 == tag) { 3448 MobileDataStateTracker mobileDst = 3449 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3450 if (mobileDst != null) { 3451 mobileDst.setEnableFailFastMobileData(msg.arg2); 3452 } 3453 } else { 3454 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 3455 + " != tag:" + tag); 3456 } 3457 break; 3458 } 3459 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 3460 handleNetworkSamplingTimeout(); 3461 break; 3462 } 3463 case EVENT_PROXY_HAS_CHANGED: { 3464 handleApplyDefaultProxy((ProxyInfo)msg.obj); 3465 break; 3466 } 3467 case EVENT_REGISTER_NETWORK_FACTORY: { 3468 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 3469 break; 3470 } 3471 case EVENT_UNREGISTER_NETWORK_FACTORY: { 3472 handleUnregisterNetworkFactory((Messenger)msg.obj); 3473 break; 3474 } 3475 case EVENT_REGISTER_NETWORK_AGENT: { 3476 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 3477 break; 3478 } 3479 case EVENT_REGISTER_NETWORK_REQUEST: 3480 case EVENT_REGISTER_NETWORK_LISTENER: { 3481 handleRegisterNetworkRequest(msg); 3482 break; 3483 } 3484 case EVENT_RELEASE_NETWORK_REQUEST: { 3485 handleReleaseNetworkRequest((NetworkRequest) msg.obj); 3486 break; 3487 } 3488 } 3489 } 3490 } 3491 3492 // javadoc from interface 3493 public int tether(String iface) { 3494 enforceTetherChangePermission(); 3495 3496 if (isTetheringSupported()) { 3497 return mTethering.tether(iface); 3498 } else { 3499 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 3500 } 3501 } 3502 3503 // javadoc from interface 3504 public int untether(String iface) { 3505 enforceTetherChangePermission(); 3506 3507 if (isTetheringSupported()) { 3508 return mTethering.untether(iface); 3509 } else { 3510 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 3511 } 3512 } 3513 3514 // javadoc from interface 3515 public int getLastTetherError(String iface) { 3516 enforceTetherAccessPermission(); 3517 3518 if (isTetheringSupported()) { 3519 return mTethering.getLastTetherError(iface); 3520 } else { 3521 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 3522 } 3523 } 3524 3525 // TODO - proper iface API for selection by property, inspection, etc 3526 public String[] getTetherableUsbRegexs() { 3527 enforceTetherAccessPermission(); 3528 if (isTetheringSupported()) { 3529 return mTethering.getTetherableUsbRegexs(); 3530 } else { 3531 return new String[0]; 3532 } 3533 } 3534 3535 public String[] getTetherableWifiRegexs() { 3536 enforceTetherAccessPermission(); 3537 if (isTetheringSupported()) { 3538 return mTethering.getTetherableWifiRegexs(); 3539 } else { 3540 return new String[0]; 3541 } 3542 } 3543 3544 public String[] getTetherableBluetoothRegexs() { 3545 enforceTetherAccessPermission(); 3546 if (isTetheringSupported()) { 3547 return mTethering.getTetherableBluetoothRegexs(); 3548 } else { 3549 return new String[0]; 3550 } 3551 } 3552 3553 public int setUsbTethering(boolean enable) { 3554 enforceTetherChangePermission(); 3555 if (isTetheringSupported()) { 3556 return mTethering.setUsbTethering(enable); 3557 } else { 3558 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 3559 } 3560 } 3561 3562 // TODO - move iface listing, queries, etc to new module 3563 // javadoc from interface 3564 public String[] getTetherableIfaces() { 3565 enforceTetherAccessPermission(); 3566 return mTethering.getTetherableIfaces(); 3567 } 3568 3569 public String[] getTetheredIfaces() { 3570 enforceTetherAccessPermission(); 3571 return mTethering.getTetheredIfaces(); 3572 } 3573 3574 public String[] getTetheringErroredIfaces() { 3575 enforceTetherAccessPermission(); 3576 return mTethering.getErroredIfaces(); 3577 } 3578 3579 // if ro.tether.denied = true we default to no tethering 3580 // gservices could set the secure setting to 1 though to enable it on a build where it 3581 // had previously been turned off. 3582 public boolean isTetheringSupported() { 3583 enforceTetherAccessPermission(); 3584 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 3585 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 3586 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0); 3587 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 3588 mTethering.getTetherableWifiRegexs().length != 0 || 3589 mTethering.getTetherableBluetoothRegexs().length != 0) && 3590 mTethering.getUpstreamIfaceTypes().length != 0); 3591 } 3592 3593 // An API NetworkStateTrackers can call when they lose their network. 3594 // This will automatically be cleared after X seconds or a network becomes CONNECTED, 3595 // whichever happens first. The timer is started by the first caller and not 3596 // restarted by subsequent callers. 3597 public void requestNetworkTransitionWakelock(String forWhom) { 3598 enforceConnectivityInternalPermission(); 3599 synchronized (this) { 3600 if (mNetTransitionWakeLock.isHeld()) return; 3601 mNetTransitionWakeLockSerialNumber++; 3602 mNetTransitionWakeLock.acquire(); 3603 mNetTransitionWakeLockCausedBy = forWhom; 3604 } 3605 mHandler.sendMessageDelayed(mHandler.obtainMessage( 3606 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 3607 mNetTransitionWakeLockSerialNumber, 0), 3608 mNetTransitionWakeLockTimeout); 3609 return; 3610 } 3611 3612 // 100 percent is full good, 0 is full bad. 3613 public void reportInetCondition(int networkType, int percentage) { 3614 if (VDBG) log("reportNetworkCondition(" + networkType + ", " + percentage + ")"); 3615 mContext.enforceCallingOrSelfPermission( 3616 android.Manifest.permission.STATUS_BAR, 3617 "ConnectivityService"); 3618 3619 if (DBG) { 3620 int pid = getCallingPid(); 3621 int uid = getCallingUid(); 3622 String s = pid + "(" + uid + ") reports inet is " + 3623 (percentage > 50 ? "connected" : "disconnected") + " (" + percentage + ") on " + 3624 "network Type " + networkType + " at " + GregorianCalendar.getInstance().getTime(); 3625 mInetLog.add(s); 3626 while(mInetLog.size() > INET_CONDITION_LOG_MAX_SIZE) { 3627 mInetLog.remove(0); 3628 } 3629 } 3630 mHandler.sendMessage(mHandler.obtainMessage( 3631 EVENT_INET_CONDITION_CHANGE, networkType, percentage)); 3632 } 3633 3634 public void reportBadNetwork(Network network) { 3635 //TODO 3636 } 3637 3638 private void handleInetConditionChange(int netType, int condition) { 3639 if (mActiveDefaultNetwork == -1) { 3640 if (DBG) log("handleInetConditionChange: no active default network - ignore"); 3641 return; 3642 } 3643 if (mActiveDefaultNetwork != netType) { 3644 if (DBG) log("handleInetConditionChange: net=" + netType + 3645 " != default=" + mActiveDefaultNetwork + " - ignore"); 3646 return; 3647 } 3648 if (VDBG) { 3649 log("handleInetConditionChange: net=" + 3650 netType + ", condition=" + condition + 3651 ",mActiveDefaultNetwork=" + mActiveDefaultNetwork); 3652 } 3653 mDefaultInetCondition = condition; 3654 int delay; 3655 if (mInetConditionChangeInFlight == false) { 3656 if (VDBG) log("handleInetConditionChange: starting a change hold"); 3657 // setup a new hold to debounce this 3658 if (mDefaultInetCondition > 50) { 3659 delay = Settings.Global.getInt(mContext.getContentResolver(), 3660 Settings.Global.INET_CONDITION_DEBOUNCE_UP_DELAY, 500); 3661 } else { 3662 delay = Settings.Global.getInt(mContext.getContentResolver(), 3663 Settings.Global.INET_CONDITION_DEBOUNCE_DOWN_DELAY, 3000); 3664 } 3665 mInetConditionChangeInFlight = true; 3666 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_INET_CONDITION_HOLD_END, 3667 mActiveDefaultNetwork, mDefaultConnectionSequence), delay); 3668 } else { 3669 // we've set the new condition, when this hold ends that will get picked up 3670 if (VDBG) log("handleInetConditionChange: currently in hold - not setting new end evt"); 3671 } 3672 } 3673 3674 private void handleInetConditionHoldEnd(int netType, int sequence) { 3675 if (DBG) { 3676 log("handleInetConditionHoldEnd: net=" + netType + 3677 ", condition=" + mDefaultInetCondition + 3678 ", published condition=" + mDefaultInetConditionPublished); 3679 } 3680 mInetConditionChangeInFlight = false; 3681 3682 if (mActiveDefaultNetwork == -1) { 3683 if (DBG) log("handleInetConditionHoldEnd: no active default network - ignoring"); 3684 return; 3685 } 3686 if (mDefaultConnectionSequence != sequence) { 3687 if (DBG) log("handleInetConditionHoldEnd: event hold for obsolete network - ignoring"); 3688 return; 3689 } 3690 // TODO: Figure out why this optimization sometimes causes a 3691 // change in mDefaultInetCondition to be missed and the 3692 // UI to not be updated. 3693 //if (mDefaultInetConditionPublished == mDefaultInetCondition) { 3694 // if (DBG) log("no change in condition - aborting"); 3695 // return; 3696 //} 3697 NetworkInfo networkInfo = getNetworkInfoForType(mActiveDefaultNetwork); 3698 if (networkInfo.isConnected() == false) { 3699 if (DBG) log("handleInetConditionHoldEnd: default network not connected - ignoring"); 3700 return; 3701 } 3702 mDefaultInetConditionPublished = mDefaultInetCondition; 3703 sendInetConditionBroadcast(networkInfo); 3704 return; 3705 } 3706 3707 public ProxyInfo getProxy() { 3708 // this information is already available as a world read/writable jvm property 3709 // so this API change wouldn't have a benifit. It also breaks the passing 3710 // of proxy info to all the JVMs. 3711 // enforceAccessPermission(); 3712 synchronized (mProxyLock) { 3713 ProxyInfo ret = mGlobalProxy; 3714 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 3715 return ret; 3716 } 3717 } 3718 3719 public void setGlobalProxy(ProxyInfo proxyProperties) { 3720 enforceConnectivityInternalPermission(); 3721 3722 synchronized (mProxyLock) { 3723 if (proxyProperties == mGlobalProxy) return; 3724 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 3725 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 3726 3727 String host = ""; 3728 int port = 0; 3729 String exclList = ""; 3730 String pacFileUrl = ""; 3731 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 3732 (proxyProperties.getPacFileUrl() != null))) { 3733 if (!proxyProperties.isValid()) { 3734 if (DBG) 3735 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 3736 return; 3737 } 3738 mGlobalProxy = new ProxyInfo(proxyProperties); 3739 host = mGlobalProxy.getHost(); 3740 port = mGlobalProxy.getPort(); 3741 exclList = mGlobalProxy.getExclusionListAsString(); 3742 if (proxyProperties.getPacFileUrl() != null) { 3743 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 3744 } 3745 } else { 3746 mGlobalProxy = null; 3747 } 3748 ContentResolver res = mContext.getContentResolver(); 3749 final long token = Binder.clearCallingIdentity(); 3750 try { 3751 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 3752 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 3753 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 3754 exclList); 3755 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 3756 } finally { 3757 Binder.restoreCallingIdentity(token); 3758 } 3759 } 3760 3761 if (mGlobalProxy == null) { 3762 proxyProperties = mDefaultProxy; 3763 } 3764 sendProxyBroadcast(proxyProperties); 3765 } 3766 3767 private void loadGlobalProxy() { 3768 ContentResolver res = mContext.getContentResolver(); 3769 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 3770 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 3771 String exclList = Settings.Global.getString(res, 3772 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 3773 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 3774 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 3775 ProxyInfo proxyProperties; 3776 if (!TextUtils.isEmpty(pacFileUrl)) { 3777 proxyProperties = new ProxyInfo(pacFileUrl); 3778 } else { 3779 proxyProperties = new ProxyInfo(host, port, exclList); 3780 } 3781 if (!proxyProperties.isValid()) { 3782 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 3783 return; 3784 } 3785 3786 synchronized (mProxyLock) { 3787 mGlobalProxy = proxyProperties; 3788 } 3789 } 3790 } 3791 3792 public ProxyInfo getGlobalProxy() { 3793 // this information is already available as a world read/writable jvm property 3794 // so this API change wouldn't have a benifit. It also breaks the passing 3795 // of proxy info to all the JVMs. 3796 // enforceAccessPermission(); 3797 synchronized (mProxyLock) { 3798 return mGlobalProxy; 3799 } 3800 } 3801 3802 private void handleApplyDefaultProxy(ProxyInfo proxy) { 3803 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 3804 && (proxy.getPacFileUrl() == null)) { 3805 proxy = null; 3806 } 3807 synchronized (mProxyLock) { 3808 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 3809 if (mDefaultProxy == proxy) return; // catches repeated nulls 3810 if (proxy != null && !proxy.isValid()) { 3811 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 3812 return; 3813 } 3814 3815 // This call could be coming from the PacManager, containing the port of the local 3816 // proxy. If this new proxy matches the global proxy then copy this proxy to the 3817 // global (to get the correct local port), and send a broadcast. 3818 // TODO: Switch PacManager to have its own message to send back rather than 3819 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 3820 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 3821 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 3822 mGlobalProxy = proxy; 3823 sendProxyBroadcast(mGlobalProxy); 3824 return; 3825 } 3826 mDefaultProxy = proxy; 3827 3828 if (mGlobalProxy != null) return; 3829 if (!mDefaultProxyDisabled) { 3830 sendProxyBroadcast(proxy); 3831 } 3832 } 3833 } 3834 3835 private void handleDeprecatedGlobalHttpProxy() { 3836 String proxy = Settings.Global.getString(mContext.getContentResolver(), 3837 Settings.Global.HTTP_PROXY); 3838 if (!TextUtils.isEmpty(proxy)) { 3839 String data[] = proxy.split(":"); 3840 if (data.length == 0) { 3841 return; 3842 } 3843 3844 String proxyHost = data[0]; 3845 int proxyPort = 8080; 3846 if (data.length > 1) { 3847 try { 3848 proxyPort = Integer.parseInt(data[1]); 3849 } catch (NumberFormatException e) { 3850 return; 3851 } 3852 } 3853 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 3854 setGlobalProxy(p); 3855 } 3856 } 3857 3858 private void sendProxyBroadcast(ProxyInfo proxy) { 3859 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 3860 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 3861 if (DBG) log("sending Proxy Broadcast for " + proxy); 3862 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 3863 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 3864 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3865 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 3866 final long ident = Binder.clearCallingIdentity(); 3867 try { 3868 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 3869 } finally { 3870 Binder.restoreCallingIdentity(ident); 3871 } 3872 } 3873 3874 private static class SettingsObserver extends ContentObserver { 3875 private int mWhat; 3876 private Handler mHandler; 3877 SettingsObserver(Handler handler, int what) { 3878 super(handler); 3879 mHandler = handler; 3880 mWhat = what; 3881 } 3882 3883 void observe(Context context) { 3884 ContentResolver resolver = context.getContentResolver(); 3885 resolver.registerContentObserver(Settings.Global.getUriFor( 3886 Settings.Global.HTTP_PROXY), false, this); 3887 } 3888 3889 @Override 3890 public void onChange(boolean selfChange) { 3891 mHandler.obtainMessage(mWhat).sendToTarget(); 3892 } 3893 } 3894 3895 private static void log(String s) { 3896 Slog.d(TAG, s); 3897 } 3898 3899 private static void loge(String s) { 3900 Slog.e(TAG, s); 3901 } 3902 3903 int convertFeatureToNetworkType(int networkType, String feature) { 3904 int usedNetworkType = networkType; 3905 3906 if(networkType == ConnectivityManager.TYPE_MOBILE) { 3907 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 3908 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 3909 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 3910 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 3911 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 3912 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 3913 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 3914 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 3915 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 3916 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 3917 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 3918 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 3919 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 3920 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 3921 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 3922 } else { 3923 Slog.e(TAG, "Can't match any mobile netTracker!"); 3924 } 3925 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 3926 if (TextUtils.equals(feature, "p2p")) { 3927 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 3928 } else { 3929 Slog.e(TAG, "Can't match any wifi netTracker!"); 3930 } 3931 } else { 3932 Slog.e(TAG, "Unexpected network type"); 3933 } 3934 return usedNetworkType; 3935 } 3936 3937 private static <T> T checkNotNull(T value, String message) { 3938 if (value == null) { 3939 throw new NullPointerException(message); 3940 } 3941 return value; 3942 } 3943 3944 /** 3945 * Protect a socket from VPN routing rules. This method is used by 3946 * VpnBuilder and not available in ConnectivityManager. Permissions 3947 * are checked in Vpn class. 3948 * @hide 3949 */ 3950 @Override 3951 public boolean protectVpn(ParcelFileDescriptor socket) { 3952 throwIfLockdownEnabled(); 3953 try { 3954 int type = mActiveDefaultNetwork; 3955 int user = UserHandle.getUserId(Binder.getCallingUid()); 3956 if (ConnectivityManager.isNetworkTypeValid(type) && mNetTrackers[type] != null) { 3957 synchronized(mVpns) { 3958 mVpns.get(user).protect(socket); 3959 } 3960 return true; 3961 } 3962 } catch (Exception e) { 3963 // ignore 3964 } finally { 3965 try { 3966 socket.close(); 3967 } catch (Exception e) { 3968 // ignore 3969 } 3970 } 3971 return false; 3972 } 3973 3974 /** 3975 * Prepare for a VPN application. This method is used by VpnDialogs 3976 * and not available in ConnectivityManager. Permissions are checked 3977 * in Vpn class. 3978 * @hide 3979 */ 3980 @Override 3981 public boolean prepareVpn(String oldPackage, String newPackage) { 3982 throwIfLockdownEnabled(); 3983 int user = UserHandle.getUserId(Binder.getCallingUid()); 3984 synchronized(mVpns) { 3985 return mVpns.get(user).prepare(oldPackage, newPackage); 3986 } 3987 } 3988 3989 @Override 3990 public void markSocketAsUser(ParcelFileDescriptor socket, int uid) { 3991 enforceMarkNetworkSocketPermission(); 3992 final long token = Binder.clearCallingIdentity(); 3993 try { 3994 int mark = mNetd.getMarkForUid(uid); 3995 // Clear the mark on the socket if no mark is needed to prevent socket reuse issues 3996 if (mark == -1) { 3997 mark = 0; 3998 } 3999 NetworkUtils.markSocket(socket.getFd(), mark); 4000 } catch (RemoteException e) { 4001 } finally { 4002 Binder.restoreCallingIdentity(token); 4003 } 4004 } 4005 4006 /** 4007 * Configure a TUN interface and return its file descriptor. Parameters 4008 * are encoded and opaque to this class. This method is used by VpnBuilder 4009 * and not available in ConnectivityManager. Permissions are checked in 4010 * Vpn class. 4011 * @hide 4012 */ 4013 @Override 4014 public ParcelFileDescriptor establishVpn(VpnConfig config) { 4015 throwIfLockdownEnabled(); 4016 int user = UserHandle.getUserId(Binder.getCallingUid()); 4017 synchronized(mVpns) { 4018 return mVpns.get(user).establish(config); 4019 } 4020 } 4021 4022 /** 4023 * Start legacy VPN, controlling native daemons as needed. Creates a 4024 * secondary thread to perform connection work, returning quickly. 4025 */ 4026 @Override 4027 public void startLegacyVpn(VpnProfile profile) { 4028 throwIfLockdownEnabled(); 4029 final LinkProperties egress = getActiveLinkProperties(); 4030 if (egress == null) { 4031 throw new IllegalStateException("Missing active network connection"); 4032 } 4033 int user = UserHandle.getUserId(Binder.getCallingUid()); 4034 synchronized(mVpns) { 4035 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 4036 } 4037 } 4038 4039 /** 4040 * Return the information of the ongoing legacy VPN. This method is used 4041 * by VpnSettings and not available in ConnectivityManager. Permissions 4042 * are checked in Vpn class. 4043 * @hide 4044 */ 4045 @Override 4046 public LegacyVpnInfo getLegacyVpnInfo() { 4047 throwIfLockdownEnabled(); 4048 int user = UserHandle.getUserId(Binder.getCallingUid()); 4049 synchronized(mVpns) { 4050 return mVpns.get(user).getLegacyVpnInfo(); 4051 } 4052 } 4053 4054 /** 4055 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 4056 * not available in ConnectivityManager. 4057 * Permissions are checked in Vpn class. 4058 * @hide 4059 */ 4060 @Override 4061 public VpnConfig getVpnConfig() { 4062 int user = UserHandle.getUserId(Binder.getCallingUid()); 4063 synchronized(mVpns) { 4064 return mVpns.get(user).getVpnConfig(); 4065 } 4066 } 4067 4068 /** 4069 * Callback for VPN subsystem. Currently VPN is not adapted to the service 4070 * through NetworkStateTracker since it works differently. For example, it 4071 * needs to override DNS servers but never takes the default routes. It 4072 * relies on another data network, and it could keep existing connections 4073 * alive after reconnecting, switching between networks, or even resuming 4074 * from deep sleep. Calls from applications should be done synchronously 4075 * to avoid race conditions. As these are all hidden APIs, refactoring can 4076 * be done whenever a better abstraction is developed. 4077 */ 4078 public class VpnCallback { 4079 private VpnCallback() { 4080 } 4081 4082 public void onStateChanged(NetworkInfo info) { 4083 mHandler.obtainMessage(EVENT_VPN_STATE_CHANGED, info).sendToTarget(); 4084 } 4085 4086 public void override(String iface, List<String> dnsServers, List<String> searchDomains) { 4087 if (dnsServers == null) { 4088 restore(); 4089 return; 4090 } 4091 4092 // Convert DNS servers into addresses. 4093 List<InetAddress> addresses = new ArrayList<InetAddress>(); 4094 for (String address : dnsServers) { 4095 // Double check the addresses and remove invalid ones. 4096 try { 4097 addresses.add(InetAddress.parseNumericAddress(address)); 4098 } catch (Exception e) { 4099 // ignore 4100 } 4101 } 4102 if (addresses.isEmpty()) { 4103 restore(); 4104 return; 4105 } 4106 4107 // Concatenate search domains into a string. 4108 StringBuilder buffer = new StringBuilder(); 4109 if (searchDomains != null) { 4110 for (String domain : searchDomains) { 4111 buffer.append(domain).append(' '); 4112 } 4113 } 4114 String domains = buffer.toString().trim(); 4115 4116 // Apply DNS changes. 4117 synchronized (mDnsLock) { 4118 // TODO: Re-enable this when the netId of the VPN is known. 4119 // updateDnsLocked("VPN", netId, addresses, domains); 4120 } 4121 4122 // Temporarily disable the default proxy (not global). 4123 synchronized (mProxyLock) { 4124 mDefaultProxyDisabled = true; 4125 if (mGlobalProxy == null && mDefaultProxy != null) { 4126 sendProxyBroadcast(null); 4127 } 4128 } 4129 4130 // TODO: support proxy per network. 4131 } 4132 4133 public void restore() { 4134 synchronized (mProxyLock) { 4135 mDefaultProxyDisabled = false; 4136 if (mGlobalProxy == null && mDefaultProxy != null) { 4137 sendProxyBroadcast(mDefaultProxy); 4138 } 4139 } 4140 } 4141 4142 public void protect(ParcelFileDescriptor socket) { 4143 try { 4144 final int mark = mNetd.getMarkForProtect(); 4145 NetworkUtils.markSocket(socket.getFd(), mark); 4146 } catch (RemoteException e) { 4147 } 4148 } 4149 4150 public void setRoutes(String interfaze, List<RouteInfo> routes) { 4151 for (RouteInfo route : routes) { 4152 try { 4153 mNetd.setMarkedForwardingRoute(interfaze, route); 4154 } catch (RemoteException e) { 4155 } 4156 } 4157 } 4158 4159 public void setMarkedForwarding(String interfaze) { 4160 try { 4161 mNetd.setMarkedForwarding(interfaze); 4162 } catch (RemoteException e) { 4163 } 4164 } 4165 4166 public void clearMarkedForwarding(String interfaze) { 4167 try { 4168 mNetd.clearMarkedForwarding(interfaze); 4169 } catch (RemoteException e) { 4170 } 4171 } 4172 4173 public void addUserForwarding(String interfaze, int uid, boolean forwardDns) { 4174 int uidStart = uid * UserHandle.PER_USER_RANGE; 4175 int uidEnd = uidStart + UserHandle.PER_USER_RANGE - 1; 4176 addUidForwarding(interfaze, uidStart, uidEnd, forwardDns); 4177 } 4178 4179 public void clearUserForwarding(String interfaze, int uid, boolean forwardDns) { 4180 int uidStart = uid * UserHandle.PER_USER_RANGE; 4181 int uidEnd = uidStart + UserHandle.PER_USER_RANGE - 1; 4182 clearUidForwarding(interfaze, uidStart, uidEnd, forwardDns); 4183 } 4184 4185 public void addUidForwarding(String interfaze, int uidStart, int uidEnd, 4186 boolean forwardDns) { 4187 // TODO: Re-enable this when the netId of the VPN is known. 4188 // try { 4189 // mNetd.setUidRangeRoute(netId, uidStart, uidEnd, forwardDns); 4190 // } catch (RemoteException e) { 4191 // } 4192 4193 } 4194 4195 public void clearUidForwarding(String interfaze, int uidStart, int uidEnd, 4196 boolean forwardDns) { 4197 // TODO: Re-enable this when the netId of the VPN is known. 4198 // try { 4199 // mNetd.clearUidRangeRoute(interfaze, uidStart, uidEnd); 4200 // } catch (RemoteException e) { 4201 // } 4202 4203 } 4204 } 4205 4206 @Override 4207 public boolean updateLockdownVpn() { 4208 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 4209 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 4210 return false; 4211 } 4212 4213 // Tear down existing lockdown if profile was removed 4214 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 4215 if (mLockdownEnabled) { 4216 if (!mKeyStore.isUnlocked()) { 4217 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 4218 return false; 4219 } 4220 4221 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 4222 final VpnProfile profile = VpnProfile.decode( 4223 profileName, mKeyStore.get(Credentials.VPN + profileName)); 4224 int user = UserHandle.getUserId(Binder.getCallingUid()); 4225 synchronized(mVpns) { 4226 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 4227 profile)); 4228 } 4229 } else { 4230 setLockdownTracker(null); 4231 } 4232 4233 return true; 4234 } 4235 4236 /** 4237 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 4238 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 4239 */ 4240 private void setLockdownTracker(LockdownVpnTracker tracker) { 4241 // Shutdown any existing tracker 4242 final LockdownVpnTracker existing = mLockdownTracker; 4243 mLockdownTracker = null; 4244 if (existing != null) { 4245 existing.shutdown(); 4246 } 4247 4248 try { 4249 if (tracker != null) { 4250 mNetd.setFirewallEnabled(true); 4251 mNetd.setFirewallInterfaceRule("lo", true); 4252 mLockdownTracker = tracker; 4253 mLockdownTracker.init(); 4254 } else { 4255 mNetd.setFirewallEnabled(false); 4256 } 4257 } catch (RemoteException e) { 4258 // ignored; NMS lives inside system_server 4259 } 4260 } 4261 4262 private void throwIfLockdownEnabled() { 4263 if (mLockdownEnabled) { 4264 throw new IllegalStateException("Unavailable in lockdown mode"); 4265 } 4266 } 4267 4268 public void supplyMessenger(int networkType, Messenger messenger) { 4269 enforceConnectivityInternalPermission(); 4270 4271 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 4272 mNetTrackers[networkType].supplyMessenger(messenger); 4273 } 4274 } 4275 4276 public int findConnectionTypeForIface(String iface) { 4277 enforceConnectivityInternalPermission(); 4278 4279 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 4280 for (NetworkStateTracker tracker : mNetTrackers) { 4281 if (tracker != null) { 4282 LinkProperties lp = tracker.getLinkProperties(); 4283 if (lp != null && iface.equals(lp.getInterfaceName())) { 4284 return tracker.getNetworkInfo().getType(); 4285 } 4286 } 4287 } 4288 return ConnectivityManager.TYPE_NONE; 4289 } 4290 4291 /** 4292 * Have mobile data fail fast if enabled. 4293 * 4294 * @param enabled DctConstants.ENABLED/DISABLED 4295 */ 4296 private void setEnableFailFastMobileData(int enabled) { 4297 int tag; 4298 4299 if (enabled == DctConstants.ENABLED) { 4300 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 4301 } else { 4302 tag = mEnableFailFastMobileDataTag.get(); 4303 } 4304 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 4305 enabled)); 4306 } 4307 4308 private boolean isMobileDataStateTrackerReady() { 4309 MobileDataStateTracker mdst = 4310 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 4311 return (mdst != null) && (mdst.isReady()); 4312 } 4313 4314 /** 4315 * The ResultReceiver resultCode for checkMobileProvisioning (CMP_RESULT_CODE) 4316 */ 4317 4318 /** 4319 * No connection was possible to the network. 4320 * This is NOT a warm sim. 4321 */ 4322 private static final int CMP_RESULT_CODE_NO_CONNECTION = 0; 4323 4324 /** 4325 * A connection was made to the internet, all is well. 4326 * This is NOT a warm sim. 4327 */ 4328 private static final int CMP_RESULT_CODE_CONNECTABLE = 1; 4329 4330 /** 4331 * A connection was made but no dns server was available to resolve a name to address. 4332 * This is NOT a warm sim since provisioning network is supported. 4333 */ 4334 private static final int CMP_RESULT_CODE_NO_DNS = 2; 4335 4336 /** 4337 * A connection was made but could not open a TCP connection. 4338 * This is NOT a warm sim since provisioning network is supported. 4339 */ 4340 private static final int CMP_RESULT_CODE_NO_TCP_CONNECTION = 3; 4341 4342 /** 4343 * A connection was made but there was a redirection, we appear to be in walled garden. 4344 * This is an indication of a warm sim on a mobile network such as T-Mobile. 4345 */ 4346 private static final int CMP_RESULT_CODE_REDIRECTED = 4; 4347 4348 /** 4349 * The mobile network is a provisioning network. 4350 * This is an indication of a warm sim on a mobile network such as AT&T. 4351 */ 4352 private static final int CMP_RESULT_CODE_PROVISIONING_NETWORK = 5; 4353 4354 /** 4355 * The mobile network is provisioning 4356 */ 4357 private static final int CMP_RESULT_CODE_IS_PROVISIONING = 6; 4358 4359 private AtomicBoolean mIsProvisioningNetwork = new AtomicBoolean(false); 4360 private AtomicBoolean mIsStartingProvisioning = new AtomicBoolean(false); 4361 4362 private AtomicBoolean mIsCheckingMobileProvisioning = new AtomicBoolean(false); 4363 4364 @Override 4365 public int checkMobileProvisioning(int suggestedTimeOutMs) { 4366 int timeOutMs = -1; 4367 if (DBG) log("checkMobileProvisioning: E suggestedTimeOutMs=" + suggestedTimeOutMs); 4368 enforceConnectivityInternalPermission(); 4369 4370 final long token = Binder.clearCallingIdentity(); 4371 try { 4372 timeOutMs = suggestedTimeOutMs; 4373 if (suggestedTimeOutMs > CheckMp.MAX_TIMEOUT_MS) { 4374 timeOutMs = CheckMp.MAX_TIMEOUT_MS; 4375 } 4376 4377 // Check that mobile networks are supported 4378 if (!isNetworkSupported(ConnectivityManager.TYPE_MOBILE) 4379 || !isNetworkSupported(ConnectivityManager.TYPE_MOBILE_HIPRI)) { 4380 if (DBG) log("checkMobileProvisioning: X no mobile network"); 4381 return timeOutMs; 4382 } 4383 4384 // If we're already checking don't do it again 4385 // TODO: Add a queue of results... 4386 if (mIsCheckingMobileProvisioning.getAndSet(true)) { 4387 if (DBG) log("checkMobileProvisioning: X already checking ignore for the moment"); 4388 return timeOutMs; 4389 } 4390 4391 // Start off with mobile notification off 4392 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 4393 4394 CheckMp checkMp = new CheckMp(mContext, this); 4395 CheckMp.CallBack cb = new CheckMp.CallBack() { 4396 @Override 4397 void onComplete(Integer result) { 4398 if (DBG) log("CheckMp.onComplete: result=" + result); 4399 NetworkInfo ni = 4400 mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI].getNetworkInfo(); 4401 switch(result) { 4402 case CMP_RESULT_CODE_CONNECTABLE: 4403 case CMP_RESULT_CODE_NO_CONNECTION: 4404 case CMP_RESULT_CODE_NO_DNS: 4405 case CMP_RESULT_CODE_NO_TCP_CONNECTION: { 4406 if (DBG) log("CheckMp.onComplete: ignore, connected or no connection"); 4407 break; 4408 } 4409 case CMP_RESULT_CODE_REDIRECTED: { 4410 if (DBG) log("CheckMp.onComplete: warm sim"); 4411 String url = getMobileProvisioningUrl(); 4412 if (TextUtils.isEmpty(url)) { 4413 url = getMobileRedirectedProvisioningUrl(); 4414 } 4415 if (TextUtils.isEmpty(url) == false) { 4416 if (DBG) log("CheckMp.onComplete: warm (redirected), url=" + url); 4417 setProvNotificationVisible(true, 4418 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 4419 url); 4420 } else { 4421 if (DBG) log("CheckMp.onComplete: warm (redirected), no url"); 4422 } 4423 break; 4424 } 4425 case CMP_RESULT_CODE_PROVISIONING_NETWORK: { 4426 String url = getMobileProvisioningUrl(); 4427 if (TextUtils.isEmpty(url) == false) { 4428 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), url=" + url); 4429 setProvNotificationVisible(true, 4430 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 4431 url); 4432 // Mark that we've got a provisioning network and 4433 // Disable Mobile Data until user actually starts provisioning. 4434 mIsProvisioningNetwork.set(true); 4435 MobileDataStateTracker mdst = (MobileDataStateTracker) 4436 mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 4437 mdst.setInternalDataEnable(false); 4438 } else { 4439 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), no url"); 4440 } 4441 break; 4442 } 4443 case CMP_RESULT_CODE_IS_PROVISIONING: { 4444 // FIXME: Need to know when provisioning is done. Probably we can 4445 // check the completion status if successful we're done if we 4446 // "timedout" or still connected to provisioning APN turn off data? 4447 if (DBG) log("CheckMp.onComplete: provisioning started"); 4448 mIsStartingProvisioning.set(false); 4449 break; 4450 } 4451 default: { 4452 loge("CheckMp.onComplete: ignore unexpected result=" + result); 4453 break; 4454 } 4455 } 4456 mIsCheckingMobileProvisioning.set(false); 4457 } 4458 }; 4459 CheckMp.Params params = 4460 new CheckMp.Params(checkMp.getDefaultUrl(), timeOutMs, cb); 4461 if (DBG) log("checkMobileProvisioning: params=" + params); 4462 // TODO: Reenable when calls to the now defunct 4463 // MobileDataStateTracker.isProvisioningNetwork() are removed. 4464 // This code should be moved to the Telephony code. 4465 // checkMp.execute(params); 4466 } finally { 4467 Binder.restoreCallingIdentity(token); 4468 if (DBG) log("checkMobileProvisioning: X"); 4469 } 4470 return timeOutMs; 4471 } 4472 4473 static class CheckMp extends 4474 AsyncTask<CheckMp.Params, Void, Integer> { 4475 private static final String CHECKMP_TAG = "CheckMp"; 4476 4477 // adb shell setprop persist.checkmp.testfailures 1 to enable testing failures 4478 private static boolean mTestingFailures; 4479 4480 // Choosing 4 loops as half of them will use HTTPS and the other half HTTP 4481 private static final int MAX_LOOPS = 4; 4482 4483 // Number of milli-seconds to complete all of the retires 4484 public static final int MAX_TIMEOUT_MS = 60000; 4485 4486 // The socket should retry only 5 seconds, the default is longer 4487 private static final int SOCKET_TIMEOUT_MS = 5000; 4488 4489 // Sleep time for network errors 4490 private static final int NET_ERROR_SLEEP_SEC = 3; 4491 4492 // Sleep time for network route establishment 4493 private static final int NET_ROUTE_ESTABLISHMENT_SLEEP_SEC = 3; 4494 4495 // Short sleep time for polling :( 4496 private static final int POLLING_SLEEP_SEC = 1; 4497 4498 private Context mContext; 4499 private ConnectivityService mCs; 4500 private TelephonyManager mTm; 4501 private Params mParams; 4502 4503 /** 4504 * Parameters for AsyncTask.execute 4505 */ 4506 static class Params { 4507 private String mUrl; 4508 private long mTimeOutMs; 4509 private CallBack mCb; 4510 4511 Params(String url, long timeOutMs, CallBack cb) { 4512 mUrl = url; 4513 mTimeOutMs = timeOutMs; 4514 mCb = cb; 4515 } 4516 4517 @Override 4518 public String toString() { 4519 return "{" + " url=" + mUrl + " mTimeOutMs=" + mTimeOutMs + " mCb=" + mCb + "}"; 4520 } 4521 } 4522 4523 // As explained to me by Brian Carlstrom and Kenny Root, Certificates can be 4524 // issued by name or ip address, for Google its by name so when we construct 4525 // this HostnameVerifier we'll pass the original Uri and use it to verify 4526 // the host. If the host name in the original uril fails we'll test the 4527 // hostname parameter just incase things change. 4528 static class CheckMpHostnameVerifier implements HostnameVerifier { 4529 Uri mOrgUri; 4530 4531 CheckMpHostnameVerifier(Uri orgUri) { 4532 mOrgUri = orgUri; 4533 } 4534 4535 @Override 4536 public boolean verify(String hostname, SSLSession session) { 4537 HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier(); 4538 String orgUriHost = mOrgUri.getHost(); 4539 boolean retVal = hv.verify(orgUriHost, session) || hv.verify(hostname, session); 4540 if (DBG) { 4541 log("isMobileOk: hostnameVerify retVal=" + retVal + " hostname=" + hostname 4542 + " orgUriHost=" + orgUriHost); 4543 } 4544 return retVal; 4545 } 4546 } 4547 4548 /** 4549 * The call back object passed in Params. onComplete will be called 4550 * on the main thread. 4551 */ 4552 abstract static class CallBack { 4553 // Called on the main thread. 4554 abstract void onComplete(Integer result); 4555 } 4556 4557 public CheckMp(Context context, ConnectivityService cs) { 4558 if (Build.IS_DEBUGGABLE) { 4559 mTestingFailures = 4560 SystemProperties.getInt("persist.checkmp.testfailures", 0) == 1; 4561 } else { 4562 mTestingFailures = false; 4563 } 4564 4565 mContext = context; 4566 mCs = cs; 4567 4568 // Setup access to TelephonyService we'll be using. 4569 mTm = (TelephonyManager) mContext.getSystemService( 4570 Context.TELEPHONY_SERVICE); 4571 } 4572 4573 /** 4574 * Get the default url to use for the test. 4575 */ 4576 public String getDefaultUrl() { 4577 // See http://go/clientsdns for usage approval 4578 String server = Settings.Global.getString(mContext.getContentResolver(), 4579 Settings.Global.CAPTIVE_PORTAL_SERVER); 4580 if (server == null) { 4581 server = "clients3.google.com"; 4582 } 4583 return "http://" + server + "/generate_204"; 4584 } 4585 4586 /** 4587 * Detect if its possible to connect to the http url. DNS based detection techniques 4588 * do not work at all hotspots. The best way to check is to perform a request to 4589 * a known address that fetches the data we expect. 4590 */ 4591 private synchronized Integer isMobileOk(Params params) { 4592 Integer result = CMP_RESULT_CODE_NO_CONNECTION; 4593 Uri orgUri = Uri.parse(params.mUrl); 4594 Random rand = new Random(); 4595 mParams = params; 4596 4597 if (mCs.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false) { 4598 result = CMP_RESULT_CODE_NO_CONNECTION; 4599 log("isMobileOk: X not mobile capable result=" + result); 4600 return result; 4601 } 4602 4603 if (mCs.mIsStartingProvisioning.get()) { 4604 result = CMP_RESULT_CODE_IS_PROVISIONING; 4605 log("isMobileOk: X is provisioning result=" + result); 4606 return result; 4607 } 4608 4609 // See if we've already determined we've got a provisioning connection, 4610 // if so we don't need to do anything active. 4611 MobileDataStateTracker mdstDefault = (MobileDataStateTracker) 4612 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 4613 boolean isDefaultProvisioning = mdstDefault.isProvisioningNetwork(); 4614 log("isMobileOk: isDefaultProvisioning=" + isDefaultProvisioning); 4615 4616 MobileDataStateTracker mdstHipri = (MobileDataStateTracker) 4617 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 4618 boolean isHipriProvisioning = mdstHipri.isProvisioningNetwork(); 4619 log("isMobileOk: isHipriProvisioning=" + isHipriProvisioning); 4620 4621 if (isDefaultProvisioning || isHipriProvisioning) { 4622 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 4623 log("isMobileOk: X default || hipri is provisioning result=" + result); 4624 return result; 4625 } 4626 4627 try { 4628 // Continue trying to connect until time has run out 4629 long endTime = SystemClock.elapsedRealtime() + params.mTimeOutMs; 4630 4631 if (!mCs.isMobileDataStateTrackerReady()) { 4632 // Wait for MobileDataStateTracker to be ready. 4633 if (DBG) log("isMobileOk: mdst is not ready"); 4634 while(SystemClock.elapsedRealtime() < endTime) { 4635 if (mCs.isMobileDataStateTrackerReady()) { 4636 // Enable fail fast as we'll do retries here and use a 4637 // hipri connection so the default connection stays active. 4638 if (DBG) log("isMobileOk: mdst ready, enable fail fast of mobile data"); 4639 mCs.setEnableFailFastMobileData(DctConstants.ENABLED); 4640 break; 4641 } 4642 sleep(POLLING_SLEEP_SEC); 4643 } 4644 } 4645 4646 log("isMobileOk: start hipri url=" + params.mUrl); 4647 4648 // First wait until we can start using hipri 4649 Binder binder = new Binder(); 4650 while(SystemClock.elapsedRealtime() < endTime) { 4651 int ret = mCs.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 4652 Phone.FEATURE_ENABLE_HIPRI, binder); 4653 if ((ret == PhoneConstants.APN_ALREADY_ACTIVE) 4654 || (ret == PhoneConstants.APN_REQUEST_STARTED)) { 4655 log("isMobileOk: hipri started"); 4656 break; 4657 } 4658 if (VDBG) log("isMobileOk: hipri not started yet"); 4659 result = CMP_RESULT_CODE_NO_CONNECTION; 4660 sleep(POLLING_SLEEP_SEC); 4661 } 4662 4663 // Continue trying to connect until time has run out 4664 while(SystemClock.elapsedRealtime() < endTime) { 4665 try { 4666 // Wait for hipri to connect. 4667 // TODO: Don't poll and handle situation where hipri fails 4668 // because default is retrying. See b/9569540 4669 NetworkInfo.State state = mCs 4670 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 4671 if (state != NetworkInfo.State.CONNECTED) { 4672 if (true/*VDBG*/) { 4673 log("isMobileOk: not connected ni=" + 4674 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 4675 } 4676 sleep(POLLING_SLEEP_SEC); 4677 result = CMP_RESULT_CODE_NO_CONNECTION; 4678 continue; 4679 } 4680 4681 // Hipri has started check if this is a provisioning url 4682 MobileDataStateTracker mdst = (MobileDataStateTracker) 4683 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 4684 if (mdst.isProvisioningNetwork()) { 4685 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 4686 if (DBG) log("isMobileOk: X isProvisioningNetwork result=" + result); 4687 return result; 4688 } else { 4689 if (DBG) log("isMobileOk: isProvisioningNetwork is false, continue"); 4690 } 4691 4692 // Get of the addresses associated with the url host. We need to use the 4693 // address otherwise HttpURLConnection object will use the name to get 4694 // the addresses and will try every address but that will bypass the 4695 // route to host we setup and the connection could succeed as the default 4696 // interface might be connected to the internet via wifi or other interface. 4697 InetAddress[] addresses; 4698 try { 4699 addresses = InetAddress.getAllByName(orgUri.getHost()); 4700 } catch (UnknownHostException e) { 4701 result = CMP_RESULT_CODE_NO_DNS; 4702 log("isMobileOk: X UnknownHostException result=" + result); 4703 return result; 4704 } 4705 log("isMobileOk: addresses=" + inetAddressesToString(addresses)); 4706 4707 // Get the type of addresses supported by this link 4708 LinkProperties lp = mCs.getLinkPropertiesForTypeInternal( 4709 ConnectivityManager.TYPE_MOBILE_HIPRI); 4710 boolean linkHasIpv4 = lp.hasIPv4Address(); 4711 boolean linkHasIpv6 = lp.hasIPv6Address(); 4712 log("isMobileOk: linkHasIpv4=" + linkHasIpv4 4713 + " linkHasIpv6=" + linkHasIpv6); 4714 4715 final ArrayList<InetAddress> validAddresses = 4716 new ArrayList<InetAddress>(addresses.length); 4717 4718 for (InetAddress addr : addresses) { 4719 if (((addr instanceof Inet4Address) && linkHasIpv4) || 4720 ((addr instanceof Inet6Address) && linkHasIpv6)) { 4721 validAddresses.add(addr); 4722 } 4723 } 4724 4725 if (validAddresses.size() == 0) { 4726 return CMP_RESULT_CODE_NO_CONNECTION; 4727 } 4728 4729 int addrTried = 0; 4730 while (true) { 4731 // Loop through at most MAX_LOOPS valid addresses or until 4732 // we run out of time 4733 if (addrTried++ >= MAX_LOOPS) { 4734 log("isMobileOk: too many loops tried - giving up"); 4735 break; 4736 } 4737 if (SystemClock.elapsedRealtime() >= endTime) { 4738 log("isMobileOk: spend too much time - giving up"); 4739 break; 4740 } 4741 4742 InetAddress hostAddr = validAddresses.get(rand.nextInt( 4743 validAddresses.size())); 4744 4745 // Make a route to host so we check the specific interface. 4746 if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI, 4747 hostAddr.getAddress(), null)) { 4748 // Wait a short time to be sure the route is established ?? 4749 log("isMobileOk:" 4750 + " wait to establish route to hostAddr=" + hostAddr); 4751 sleep(NET_ROUTE_ESTABLISHMENT_SLEEP_SEC); 4752 } else { 4753 log("isMobileOk:" 4754 + " could not establish route to hostAddr=" + hostAddr); 4755 // Wait a short time before the next attempt 4756 sleep(NET_ERROR_SLEEP_SEC); 4757 continue; 4758 } 4759 4760 // Rewrite the url to have numeric address to use the specific route 4761 // using http for half the attempts and https for the other half. 4762 // Doing https first and http second as on a redirected walled garden 4763 // such as t-mobile uses we get a SocketTimeoutException: "SSL 4764 // handshake timed out" which we declare as 4765 // CMP_RESULT_CODE_NO_TCP_CONNECTION. We could change this, but by 4766 // having http second we will be using logic used for some time. 4767 URL newUrl; 4768 String scheme = (addrTried <= (MAX_LOOPS/2)) ? "https" : "http"; 4769 newUrl = new URL(scheme, hostAddr.getHostAddress(), 4770 orgUri.getPath()); 4771 log("isMobileOk: newUrl=" + newUrl); 4772 4773 HttpURLConnection urlConn = null; 4774 try { 4775 // Open the connection set the request headers and get the response 4776 urlConn = (HttpURLConnection)newUrl.openConnection( 4777 java.net.Proxy.NO_PROXY); 4778 if (scheme.equals("https")) { 4779 ((HttpsURLConnection)urlConn).setHostnameVerifier( 4780 new CheckMpHostnameVerifier(orgUri)); 4781 } 4782 urlConn.setInstanceFollowRedirects(false); 4783 urlConn.setConnectTimeout(SOCKET_TIMEOUT_MS); 4784 urlConn.setReadTimeout(SOCKET_TIMEOUT_MS); 4785 urlConn.setUseCaches(false); 4786 urlConn.setAllowUserInteraction(false); 4787 // Set the "Connection" to "Close" as by default "Keep-Alive" 4788 // is used which is useless in this case. 4789 urlConn.setRequestProperty("Connection", "close"); 4790 int responseCode = urlConn.getResponseCode(); 4791 4792 // For debug display the headers 4793 Map<String, List<String>> headers = urlConn.getHeaderFields(); 4794 log("isMobileOk: headers=" + headers); 4795 4796 // Close the connection 4797 urlConn.disconnect(); 4798 urlConn = null; 4799 4800 if (mTestingFailures) { 4801 // Pretend no connection, this tests using http and https 4802 result = CMP_RESULT_CODE_NO_CONNECTION; 4803 log("isMobileOk: TESTING_FAILURES, pretend no connction"); 4804 continue; 4805 } 4806 4807 if (responseCode == 204) { 4808 // Return 4809 result = CMP_RESULT_CODE_CONNECTABLE; 4810 log("isMobileOk: X got expected responseCode=" + responseCode 4811 + " result=" + result); 4812 return result; 4813 } else { 4814 // Retry to be sure this was redirected, we've gotten 4815 // occasions where a server returned 200 even though 4816 // the device didn't have a "warm" sim. 4817 log("isMobileOk: not expected responseCode=" + responseCode); 4818 // TODO - it would be nice in the single-address case to do 4819 // another DNS resolve here, but flushing the cache is a bit 4820 // heavy-handed. 4821 result = CMP_RESULT_CODE_REDIRECTED; 4822 } 4823 } catch (Exception e) { 4824 log("isMobileOk: HttpURLConnection Exception" + e); 4825 result = CMP_RESULT_CODE_NO_TCP_CONNECTION; 4826 if (urlConn != null) { 4827 urlConn.disconnect(); 4828 urlConn = null; 4829 } 4830 sleep(NET_ERROR_SLEEP_SEC); 4831 continue; 4832 } 4833 } 4834 log("isMobileOk: X loops|timed out result=" + result); 4835 return result; 4836 } catch (Exception e) { 4837 log("isMobileOk: Exception e=" + e); 4838 continue; 4839 } 4840 } 4841 log("isMobileOk: timed out"); 4842 } finally { 4843 log("isMobileOk: F stop hipri"); 4844 mCs.setEnableFailFastMobileData(DctConstants.DISABLED); 4845 mCs.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 4846 Phone.FEATURE_ENABLE_HIPRI); 4847 4848 // Wait for hipri to disconnect. 4849 long endTime = SystemClock.elapsedRealtime() + 5000; 4850 4851 while(SystemClock.elapsedRealtime() < endTime) { 4852 NetworkInfo.State state = mCs 4853 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 4854 if (state != NetworkInfo.State.DISCONNECTED) { 4855 if (VDBG) { 4856 log("isMobileOk: connected ni=" + 4857 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 4858 } 4859 sleep(POLLING_SLEEP_SEC); 4860 continue; 4861 } 4862 } 4863 4864 log("isMobileOk: X result=" + result); 4865 } 4866 return result; 4867 } 4868 4869 @Override 4870 protected Integer doInBackground(Params... params) { 4871 return isMobileOk(params[0]); 4872 } 4873 4874 @Override 4875 protected void onPostExecute(Integer result) { 4876 log("onPostExecute: result=" + result); 4877 if ((mParams != null) && (mParams.mCb != null)) { 4878 mParams.mCb.onComplete(result); 4879 } 4880 } 4881 4882 private String inetAddressesToString(InetAddress[] addresses) { 4883 StringBuffer sb = new StringBuffer(); 4884 boolean firstTime = true; 4885 for(InetAddress addr : addresses) { 4886 if (firstTime) { 4887 firstTime = false; 4888 } else { 4889 sb.append(","); 4890 } 4891 sb.append(addr); 4892 } 4893 return sb.toString(); 4894 } 4895 4896 private void printNetworkInfo() { 4897 boolean hasIccCard = mTm.hasIccCard(); 4898 int simState = mTm.getSimState(); 4899 log("hasIccCard=" + hasIccCard 4900 + " simState=" + simState); 4901 NetworkInfo[] ni = mCs.getAllNetworkInfo(); 4902 if (ni != null) { 4903 log("ni.length=" + ni.length); 4904 for (NetworkInfo netInfo: ni) { 4905 log("netInfo=" + netInfo.toString()); 4906 } 4907 } else { 4908 log("no network info ni=null"); 4909 } 4910 } 4911 4912 /** 4913 * Sleep for a few seconds then return. 4914 * @param seconds 4915 */ 4916 private static void sleep(int seconds) { 4917 long stopTime = System.nanoTime() + (seconds * 1000000000); 4918 long sleepTime; 4919 while ((sleepTime = stopTime - System.nanoTime()) > 0) { 4920 try { 4921 Thread.sleep(sleepTime / 1000000); 4922 } catch (InterruptedException ignored) { 4923 } 4924 } 4925 } 4926 4927 private static void log(String s) { 4928 Slog.d(ConnectivityService.TAG, "[" + CHECKMP_TAG + "] " + s); 4929 } 4930 } 4931 4932 // TODO: Move to ConnectivityManager and make public? 4933 private static final String CONNECTED_TO_PROVISIONING_NETWORK_ACTION = 4934 "com.android.server.connectivityservice.CONNECTED_TO_PROVISIONING_NETWORK_ACTION"; 4935 4936 private BroadcastReceiver mProvisioningReceiver = new BroadcastReceiver() { 4937 @Override 4938 public void onReceive(Context context, Intent intent) { 4939 if (intent.getAction().equals(CONNECTED_TO_PROVISIONING_NETWORK_ACTION)) { 4940 handleMobileProvisioningAction(intent.getStringExtra("EXTRA_URL")); 4941 } 4942 } 4943 }; 4944 4945 private void handleMobileProvisioningAction(String url) { 4946 // Mark notification as not visible 4947 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 4948 4949 // If provisioning network handle as a special case, 4950 // otherwise launch browser with the intent directly. 4951 if (mIsProvisioningNetwork.get()) { 4952 if (DBG) log("handleMobileProvisioningAction: on prov network enable then launch"); 4953// mIsStartingProvisioning.set(true); 4954// MobileDataStateTracker mdst = (MobileDataStateTracker) 4955// mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 4956// mdst.setEnableFailFastMobileData(DctConstants.ENABLED); 4957// mdst.enableMobileProvisioning(url); 4958 } else { 4959 if (DBG) log("handleMobileProvisioningAction: not prov network"); 4960 // Check for apps that can handle provisioning first 4961 Intent provisioningIntent = new Intent(TelephonyIntents.ACTION_CARRIER_SETUP); 4962 provisioningIntent.addCategory(TelephonyIntents.CATEGORY_MCCMNC_PREFIX 4963 + mTelephonyManager.getSimOperator()); 4964 if (mContext.getPackageManager().resolveActivity(provisioningIntent, 0 /* flags */) 4965 != null) { 4966 provisioningIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 4967 Intent.FLAG_ACTIVITY_NEW_TASK); 4968 mContext.startActivity(provisioningIntent); 4969 } else { 4970 // If no apps exist, use standard URL ACTION_VIEW method 4971 Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, 4972 Intent.CATEGORY_APP_BROWSER); 4973 newIntent.setData(Uri.parse(url)); 4974 newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 4975 Intent.FLAG_ACTIVITY_NEW_TASK); 4976 try { 4977 mContext.startActivity(newIntent); 4978 } catch (ActivityNotFoundException e) { 4979 loge("handleMobileProvisioningAction: startActivity failed" + e); 4980 } 4981 } 4982 } 4983 } 4984 4985 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 4986 private volatile boolean mIsNotificationVisible = false; 4987 4988 private void setProvNotificationVisible(boolean visible, int networkType, String extraInfo, 4989 String url) { 4990 if (DBG) { 4991 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 4992 + " extraInfo=" + extraInfo + " url=" + url); 4993 } 4994 4995 Resources r = Resources.getSystem(); 4996 NotificationManager notificationManager = (NotificationManager) mContext 4997 .getSystemService(Context.NOTIFICATION_SERVICE); 4998 4999 if (visible) { 5000 CharSequence title; 5001 CharSequence details; 5002 int icon; 5003 Intent intent; 5004 Notification notification = new Notification(); 5005 switch (networkType) { 5006 case ConnectivityManager.TYPE_WIFI: 5007 title = r.getString(R.string.wifi_available_sign_in, 0); 5008 details = r.getString(R.string.network_available_sign_in_detailed, 5009 extraInfo); 5010 icon = R.drawable.stat_notify_wifi_in_range; 5011 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 5012 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 5013 Intent.FLAG_ACTIVITY_NEW_TASK); 5014 notification.contentIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 5015 break; 5016 case ConnectivityManager.TYPE_MOBILE: 5017 case ConnectivityManager.TYPE_MOBILE_HIPRI: 5018 title = r.getString(R.string.network_available_sign_in, 0); 5019 // TODO: Change this to pull from NetworkInfo once a printable 5020 // name has been added to it 5021 details = mTelephonyManager.getNetworkOperatorName(); 5022 icon = R.drawable.stat_notify_rssi_in_range; 5023 intent = new Intent(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 5024 intent.putExtra("EXTRA_URL", url); 5025 intent.setFlags(0); 5026 notification.contentIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 5027 break; 5028 default: 5029 title = r.getString(R.string.network_available_sign_in, 0); 5030 details = r.getString(R.string.network_available_sign_in_detailed, 5031 extraInfo); 5032 icon = R.drawable.stat_notify_rssi_in_range; 5033 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 5034 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 5035 Intent.FLAG_ACTIVITY_NEW_TASK); 5036 notification.contentIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 5037 break; 5038 } 5039 5040 notification.when = 0; 5041 notification.icon = icon; 5042 notification.flags = Notification.FLAG_AUTO_CANCEL; 5043 notification.tickerText = title; 5044 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 5045 5046 try { 5047 notificationManager.notify(NOTIFICATION_ID, networkType, notification); 5048 } catch (NullPointerException npe) { 5049 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 5050 npe.printStackTrace(); 5051 } 5052 } else { 5053 try { 5054 notificationManager.cancel(NOTIFICATION_ID, networkType); 5055 } catch (NullPointerException npe) { 5056 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 5057 npe.printStackTrace(); 5058 } 5059 } 5060 mIsNotificationVisible = visible; 5061 } 5062 5063 /** Location to an updatable file listing carrier provisioning urls. 5064 * An example: 5065 * 5066 * <?xml version="1.0" encoding="utf-8"?> 5067 * <provisioningUrls> 5068 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 5069 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 5070 * </provisioningUrls> 5071 */ 5072 private static final String PROVISIONING_URL_PATH = 5073 "/data/misc/radio/provisioning_urls.xml"; 5074 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 5075 5076 /** XML tag for root element. */ 5077 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 5078 /** XML tag for individual url */ 5079 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 5080 /** XML tag for redirected url */ 5081 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 5082 /** XML attribute for mcc */ 5083 private static final String ATTR_MCC = "mcc"; 5084 /** XML attribute for mnc */ 5085 private static final String ATTR_MNC = "mnc"; 5086 5087 private static final int REDIRECTED_PROVISIONING = 1; 5088 private static final int PROVISIONING = 2; 5089 5090 private String getProvisioningUrlBaseFromFile(int type) { 5091 FileReader fileReader = null; 5092 XmlPullParser parser = null; 5093 Configuration config = mContext.getResources().getConfiguration(); 5094 String tagType; 5095 5096 switch (type) { 5097 case PROVISIONING: 5098 tagType = TAG_PROVISIONING_URL; 5099 break; 5100 case REDIRECTED_PROVISIONING: 5101 tagType = TAG_REDIRECTED_URL; 5102 break; 5103 default: 5104 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 5105 type); 5106 } 5107 5108 try { 5109 fileReader = new FileReader(mProvisioningUrlFile); 5110 parser = Xml.newPullParser(); 5111 parser.setInput(fileReader); 5112 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 5113 5114 while (true) { 5115 XmlUtils.nextElement(parser); 5116 5117 String element = parser.getName(); 5118 if (element == null) break; 5119 5120 if (element.equals(tagType)) { 5121 String mcc = parser.getAttributeValue(null, ATTR_MCC); 5122 try { 5123 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 5124 String mnc = parser.getAttributeValue(null, ATTR_MNC); 5125 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 5126 parser.next(); 5127 if (parser.getEventType() == XmlPullParser.TEXT) { 5128 return parser.getText(); 5129 } 5130 } 5131 } 5132 } catch (NumberFormatException e) { 5133 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 5134 } 5135 } 5136 } 5137 return null; 5138 } catch (FileNotFoundException e) { 5139 loge("Carrier Provisioning Urls file not found"); 5140 } catch (XmlPullParserException e) { 5141 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 5142 } catch (IOException e) { 5143 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 5144 } finally { 5145 if (fileReader != null) { 5146 try { 5147 fileReader.close(); 5148 } catch (IOException e) {} 5149 } 5150 } 5151 return null; 5152 } 5153 5154 @Override 5155 public String getMobileRedirectedProvisioningUrl() { 5156 enforceConnectivityInternalPermission(); 5157 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 5158 if (TextUtils.isEmpty(url)) { 5159 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 5160 } 5161 return url; 5162 } 5163 5164 @Override 5165 public String getMobileProvisioningUrl() { 5166 enforceConnectivityInternalPermission(); 5167 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 5168 if (TextUtils.isEmpty(url)) { 5169 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 5170 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 5171 } else { 5172 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 5173 } 5174 // populate the iccid, imei and phone number in the provisioning url. 5175 if (!TextUtils.isEmpty(url)) { 5176 String phoneNumber = mTelephonyManager.getLine1Number(); 5177 if (TextUtils.isEmpty(phoneNumber)) { 5178 phoneNumber = "0000000000"; 5179 } 5180 url = String.format(url, 5181 mTelephonyManager.getSimSerialNumber() /* ICCID */, 5182 mTelephonyManager.getDeviceId() /* IMEI */, 5183 phoneNumber /* Phone numer */); 5184 } 5185 5186 return url; 5187 } 5188 5189 @Override 5190 public void setProvisioningNotificationVisible(boolean visible, int networkType, 5191 String extraInfo, String url) { 5192 enforceConnectivityInternalPermission(); 5193 setProvNotificationVisible(visible, networkType, extraInfo, url); 5194 } 5195 5196 @Override 5197 public void setAirplaneMode(boolean enable) { 5198 enforceConnectivityInternalPermission(); 5199 final long ident = Binder.clearCallingIdentity(); 5200 try { 5201 final ContentResolver cr = mContext.getContentResolver(); 5202 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 5203 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 5204 intent.putExtra("state", enable); 5205 mContext.sendBroadcast(intent); 5206 } finally { 5207 Binder.restoreCallingIdentity(ident); 5208 } 5209 } 5210 5211 private void onUserStart(int userId) { 5212 synchronized(mVpns) { 5213 Vpn userVpn = mVpns.get(userId); 5214 if (userVpn != null) { 5215 loge("Starting user already has a VPN"); 5216 return; 5217 } 5218 userVpn = new Vpn(mContext, mVpnCallback, mNetd, this, userId); 5219 mVpns.put(userId, userVpn); 5220 userVpn.startMonitoring(mContext, mTrackerHandler); 5221 } 5222 } 5223 5224 private void onUserStop(int userId) { 5225 synchronized(mVpns) { 5226 Vpn userVpn = mVpns.get(userId); 5227 if (userVpn == null) { 5228 loge("Stopping user has no VPN"); 5229 return; 5230 } 5231 mVpns.delete(userId); 5232 } 5233 } 5234 5235 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 5236 @Override 5237 public void onReceive(Context context, Intent intent) { 5238 final String action = intent.getAction(); 5239 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 5240 if (userId == UserHandle.USER_NULL) return; 5241 5242 if (Intent.ACTION_USER_STARTING.equals(action)) { 5243 onUserStart(userId); 5244 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 5245 onUserStop(userId); 5246 } 5247 } 5248 }; 5249 5250 @Override 5251 public LinkQualityInfo getLinkQualityInfo(int networkType) { 5252 enforceAccessPermission(); 5253 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 5254 return mNetTrackers[networkType].getLinkQualityInfo(); 5255 } else { 5256 return null; 5257 } 5258 } 5259 5260 @Override 5261 public LinkQualityInfo getActiveLinkQualityInfo() { 5262 enforceAccessPermission(); 5263 if (isNetworkTypeValid(mActiveDefaultNetwork) && 5264 mNetTrackers[mActiveDefaultNetwork] != null) { 5265 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 5266 } else { 5267 return null; 5268 } 5269 } 5270 5271 @Override 5272 public LinkQualityInfo[] getAllLinkQualityInfo() { 5273 enforceAccessPermission(); 5274 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 5275 for (NetworkStateTracker tracker : mNetTrackers) { 5276 if (tracker != null) { 5277 LinkQualityInfo li = tracker.getLinkQualityInfo(); 5278 if (li != null) { 5279 result.add(li); 5280 } 5281 } 5282 } 5283 5284 return result.toArray(new LinkQualityInfo[result.size()]); 5285 } 5286 5287 /* Infrastructure for network sampling */ 5288 5289 private void handleNetworkSamplingTimeout() { 5290 5291 log("Sampling interval elapsed, updating statistics .."); 5292 5293 // initialize list of interfaces .. 5294 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 5295 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 5296 for (NetworkStateTracker tracker : mNetTrackers) { 5297 if (tracker != null) { 5298 String ifaceName = tracker.getNetworkInterfaceName(); 5299 if (ifaceName != null) { 5300 mapIfaceToSample.put(ifaceName, null); 5301 } 5302 } 5303 } 5304 5305 // Read samples for all interfaces 5306 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 5307 5308 // process samples for all networks 5309 for (NetworkStateTracker tracker : mNetTrackers) { 5310 if (tracker != null) { 5311 String ifaceName = tracker.getNetworkInterfaceName(); 5312 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 5313 if (ss != null) { 5314 // end the previous sampling cycle 5315 tracker.stopSampling(ss); 5316 // start a new sampling cycle .. 5317 tracker.startSampling(ss); 5318 } 5319 } 5320 } 5321 5322 log("Done."); 5323 5324 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 5325 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 5326 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 5327 5328 if (DBG) log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 5329 5330 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 5331 } 5332 5333 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 5334 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 5335 mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, wakeupTime, intent); 5336 } 5337 5338 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 5339 new HashMap<Messenger, NetworkFactoryInfo>(); 5340 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 5341 new HashMap<NetworkRequest, NetworkRequestInfo>(); 5342 5343 private static class NetworkFactoryInfo { 5344 public final String name; 5345 public final Messenger messenger; 5346 public final AsyncChannel asyncChannel; 5347 5348 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 5349 this.name = name; 5350 this.messenger = messenger; 5351 this.asyncChannel = asyncChannel; 5352 } 5353 } 5354 5355 private class NetworkRequestInfo implements IBinder.DeathRecipient { 5356 static final boolean REQUEST = true; 5357 static final boolean LISTEN = false; 5358 5359 final NetworkRequest request; 5360 IBinder mBinder; 5361 final int mPid; 5362 final int mUid; 5363 final Messenger messenger; 5364 final boolean isRequest; 5365 5366 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 5367 super(); 5368 messenger = m; 5369 request = r; 5370 mBinder = binder; 5371 mPid = getCallingPid(); 5372 mUid = getCallingUid(); 5373 this.isRequest = isRequest; 5374 5375 try { 5376 mBinder.linkToDeath(this, 0); 5377 } catch (RemoteException e) { 5378 binderDied(); 5379 } 5380 } 5381 5382 void unlinkDeathRecipient() { 5383 mBinder.unlinkToDeath(this, 0); 5384 } 5385 5386 public void binderDied() { 5387 log("ConnectivityService NetworkRequestInfo binderDied(" + 5388 request + ", " + mBinder + ")"); 5389 releaseNetworkRequest(request); 5390 } 5391 5392 public String toString() { 5393 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 5394 mPid + " for " + request; 5395 } 5396 } 5397 5398 @Override 5399 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 5400 Messenger messenger, int timeoutSec, IBinder binder, int legacyType) { 5401 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 5402 == false) { 5403 enforceConnectivityInternalPermission(); 5404 } else { 5405 enforceChangePermission(); 5406 } 5407 5408 if (timeoutSec < 0 || timeoutSec > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_SEC) { 5409 throw new IllegalArgumentException("Bad timeout specified"); 5410 } 5411 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 5412 networkCapabilities), legacyType, nextNetworkRequestId()); 5413 if (DBG) log("requestNetwork for " + networkRequest); 5414 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 5415 NetworkRequestInfo.REQUEST); 5416 5417 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 5418 if (timeoutSec > 0) { 5419 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 5420 nri), timeoutSec * 1000); 5421 } 5422 return networkRequest; 5423 } 5424 5425 @Override 5426 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 5427 PendingIntent operation) { 5428 // TODO 5429 return null; 5430 } 5431 5432 @Override 5433 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 5434 Messenger messenger, IBinder binder) { 5435 enforceAccessPermission(); 5436 5437 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 5438 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 5439 if (DBG) log("listenForNetwork for " + networkRequest); 5440 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 5441 NetworkRequestInfo.LISTEN); 5442 5443 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 5444 return networkRequest; 5445 } 5446 5447 @Override 5448 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 5449 PendingIntent operation) { 5450 } 5451 5452 @Override 5453 public void releaseNetworkRequest(NetworkRequest networkRequest) { 5454 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, 5455 networkRequest)); 5456 } 5457 5458 @Override 5459 public void registerNetworkFactory(Messenger messenger, String name) { 5460 enforceConnectivityInternalPermission(); 5461 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 5462 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 5463 } 5464 5465 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 5466 if (VDBG) log("Got NetworkFactory Messenger for " + nfi.name); 5467 mNetworkFactoryInfos.put(nfi.messenger, nfi); 5468 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 5469 } 5470 5471 @Override 5472 public void unregisterNetworkFactory(Messenger messenger) { 5473 enforceConnectivityInternalPermission(); 5474 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 5475 } 5476 5477 private void handleUnregisterNetworkFactory(Messenger messenger) { 5478 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 5479 if (nfi == null) { 5480 if (VDBG) log("Failed to find Messenger in unregisterNetworkFactory"); 5481 return; 5482 } 5483 if (VDBG) log("unregisterNetworkFactory for " + nfi.name); 5484 } 5485 5486 /** 5487 * NetworkAgentInfo supporting a request by requestId. 5488 * These have already been vetted (their Capabilities satisfy the request) 5489 * and the are the highest scored network available. 5490 * the are keyed off the Requests requestId. 5491 */ 5492 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 5493 new SparseArray<NetworkAgentInfo>(); 5494 5495 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 5496 new SparseArray<NetworkAgentInfo>(); 5497 5498 // NetworkAgentInfo keyed off its connecting messenger 5499 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 5500 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 5501 new HashMap<Messenger, NetworkAgentInfo>(); 5502 5503 private final NetworkRequest mDefaultRequest; 5504 5505 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 5506 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 5507 int currentScore) { 5508 enforceConnectivityInternalPermission(); 5509 5510 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), nextNetId(), 5511 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 5512 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler); 5513 if (VDBG) log("registerNetworkAgent " + nai); 5514 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 5515 } 5516 5517 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 5518 if (VDBG) log("Got NetworkAgent Messenger"); 5519 mNetworkAgentInfos.put(na.messenger, na); 5520 mNetworkForNetId.put(na.network.netId, na); 5521 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 5522 NetworkInfo networkInfo = na.networkInfo; 5523 na.networkInfo = null; 5524 updateNetworkInfo(na, networkInfo); 5525 } 5526 5527 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 5528 LinkProperties newLp = networkAgent.linkProperties; 5529 int netId = networkAgent.network.netId; 5530 5531 updateInterfaces(newLp, oldLp, netId); 5532 updateMtu(newLp, oldLp); 5533 // TODO - figure out what to do for clat 5534// for (LinkProperties lp : newLp.getStackedLinks()) { 5535// updateMtu(lp, null); 5536// } 5537 updateRoutes(newLp, oldLp, netId); 5538 updateDnses(newLp, oldLp, netId); 5539 updateClat(newLp, oldLp, networkAgent); 5540 } 5541 5542 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { 5543 // Update 464xlat state. 5544 if (mClat.requiresClat(na)) { 5545 5546 // If the connection was previously using clat, but is not using it now, stop the clat 5547 // daemon. Normally, this happens automatically when the connection disconnects, but if 5548 // the disconnect is not reported, or if the connection's LinkProperties changed for 5549 // some other reason (e.g., handoff changes the IP addresses on the link), it would 5550 // still be running. If it's not running, then stopping it is a no-op. 5551 if (Nat464Xlat.isRunningClat(oldLp) && !Nat464Xlat.isRunningClat(newLp)) { 5552 mClat.stopClat(); 5553 } 5554 // If the link requires clat to be running, then start the daemon now. 5555 if (na.networkInfo.isConnected()) { 5556 mClat.startClat(na); 5557 } else { 5558 mClat.stopClat(); 5559 } 5560 } 5561 } 5562 5563 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 5564 CompareResult<String> interfaceDiff = new CompareResult<String>(); 5565 if (oldLp != null) { 5566 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 5567 } else if (newLp != null) { 5568 interfaceDiff.added = newLp.getAllInterfaceNames(); 5569 } 5570 for (String iface : interfaceDiff.added) { 5571 try { 5572 mNetd.addInterfaceToNetwork(iface, netId); 5573 } catch (Exception e) { 5574 loge("Exception adding interface: " + e); 5575 } 5576 } 5577 for (String iface : interfaceDiff.removed) { 5578 try { 5579 mNetd.removeInterfaceFromNetwork(iface, netId); 5580 } catch (Exception e) { 5581 loge("Exception removing interface: " + e); 5582 } 5583 } 5584 } 5585 5586 private void updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 5587 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 5588 if (oldLp != null) { 5589 routeDiff = oldLp.compareAllRoutes(newLp); 5590 } else if (newLp != null) { 5591 routeDiff.added = newLp.getAllRoutes(); 5592 } 5593 5594 // add routes before removing old in case it helps with continuous connectivity 5595 5596 // do this twice, adding non-nexthop routes first, then routes they are dependent on 5597 for (RouteInfo route : routeDiff.added) { 5598 if (route.hasGateway()) continue; 5599 try { 5600 mNetd.addRoute(netId, route); 5601 } catch (Exception e) { 5602 loge("Exception in addRoute for non-gateway: " + e); 5603 } 5604 } 5605 for (RouteInfo route : routeDiff.added) { 5606 if (route.hasGateway() == false) continue; 5607 try { 5608 mNetd.addRoute(netId, route); 5609 } catch (Exception e) { 5610 loge("Exception in addRoute for gateway: " + e); 5611 } 5612 } 5613 5614 for (RouteInfo route : routeDiff.removed) { 5615 try { 5616 mNetd.removeRoute(netId, route); 5617 } catch (Exception e) { 5618 loge("Exception in removeRoute: " + e); 5619 } 5620 } 5621 } 5622 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId) { 5623 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 5624 Collection<InetAddress> dnses = newLp.getDnses(); 5625 if (dnses.size() == 0 && mDefaultDns != null) { 5626 dnses = new ArrayList(); 5627 dnses.add(mDefaultDns); 5628 if (DBG) { 5629 loge("no dns provided for netId " + netId + ", so using defaults"); 5630 } 5631 } 5632 try { 5633 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 5634 newLp.getDomains()); 5635 } catch (Exception e) { 5636 loge("Exception in setDnsServersForNetwork: " + e); 5637 } 5638 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 5639 if (defaultNai != null && defaultNai.network.netId == netId) { 5640 setDefaultDnsSystemProperties(dnses); 5641 } 5642 } 5643 } 5644 5645 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 5646 int last = 0; 5647 for (InetAddress dns : dnses) { 5648 ++last; 5649 String key = "net.dns" + last; 5650 String value = dns.getHostAddress(); 5651 SystemProperties.set(key, value); 5652 } 5653 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 5654 String key = "net.dns" + i; 5655 SystemProperties.set(key, ""); 5656 } 5657 mNumDnsEntries = last; 5658 } 5659 5660 5661 private void updateCapabilities(NetworkAgentInfo networkAgent, 5662 NetworkCapabilities networkCapabilities) { 5663 // TODO - what else here? Verify still satisfies everybody? 5664 // Check if satisfies somebody new? call callbacks? 5665 networkAgent.networkCapabilities = networkCapabilities; 5666 } 5667 5668 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 5669 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 5670 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 5671 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 5672 networkRequest); 5673 } 5674 } 5675 5676 private void callCallbackForRequest(NetworkRequestInfo nri, 5677 NetworkAgentInfo networkAgent, int notificationType) { 5678 if (nri.messenger == null) return; // Default request has no msgr 5679 Object o; 5680 int a1 = 0; 5681 int a2 = 0; 5682 switch (notificationType) { 5683 case ConnectivityManager.CALLBACK_LOSING: 5684 a1 = 30; // TODO - read this from NetworkMonitor 5685 // fall through 5686 case ConnectivityManager.CALLBACK_PRECHECK: 5687 case ConnectivityManager.CALLBACK_AVAILABLE: 5688 case ConnectivityManager.CALLBACK_LOST: 5689 case ConnectivityManager.CALLBACK_CAP_CHANGED: 5690 case ConnectivityManager.CALLBACK_IP_CHANGED: { 5691 o = new NetworkRequest(nri.request); 5692 a2 = networkAgent.network.netId; 5693 break; 5694 } 5695 case ConnectivityManager.CALLBACK_UNAVAIL: 5696 case ConnectivityManager.CALLBACK_RELEASED: { 5697 o = new NetworkRequest(nri.request); 5698 break; 5699 } 5700 default: { 5701 loge("Unknown notificationType " + notificationType); 5702 return; 5703 } 5704 } 5705 Message msg = Message.obtain(); 5706 msg.arg1 = a1; 5707 msg.arg2 = a2; 5708 msg.obj = o; 5709 msg.what = notificationType; 5710 try { 5711 if (VDBG) log("sending notification " + notificationType + " for " + nri.request); 5712 nri.messenger.send(msg); 5713 } catch (RemoteException e) { 5714 // may occur naturally in the race of binder death. 5715 loge("RemoteException caught trying to send a callback msg for " + nri.request); 5716 } 5717 } 5718 5719 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 5720 if (oldNetwork == null) { 5721 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 5722 return; 5723 } 5724 if (DBG) log("handleLingerComplete for " + oldNetwork.name()); 5725 if (DBG) { 5726 if (oldNetwork.networkRequests.size() != 0) { 5727 loge("Dead network still had " + oldNetwork.networkRequests.size() + " requests"); 5728 } 5729 } 5730 oldNetwork.asyncChannel.disconnect(); 5731 } 5732 5733 private void handleConnectionValidated(NetworkAgentInfo newNetwork) { 5734 if (newNetwork == null) { 5735 loge("Unknown NetworkAgentInfo in handleConnectionValidated"); 5736 return; 5737 } 5738 boolean keep = false; 5739 boolean isNewDefault = false; 5740 if (DBG) log("handleConnectionValidated for "+newNetwork.name()); 5741 // check if any NetworkRequest wants this NetworkAgent 5742 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 5743 if (VDBG) log(" new Network has: " + newNetwork.networkCapabilities); 5744 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 5745 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 5746 if (newNetwork == currentNetwork) { 5747 if (VDBG) log("Network " + newNetwork.name() + " was already satisfying" + 5748 " request " + nri.request.requestId + ". No change."); 5749 keep = true; 5750 continue; 5751 } 5752 5753 // check if it satisfies the NetworkCapabilities 5754 if (VDBG) log(" checking if request is satisfied: " + nri.request); 5755 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 5756 newNetwork.networkCapabilities)) { 5757 // next check if it's better than any current network we're using for 5758 // this request 5759 if (VDBG) { 5760 log("currentScore = " + 5761 (currentNetwork != null ? currentNetwork.currentScore : 0) + 5762 ", newScore = " + newNetwork.currentScore); 5763 } 5764 if (currentNetwork == null || 5765 currentNetwork.currentScore < newNetwork.currentScore) { 5766 if (currentNetwork != null) { 5767 if (VDBG) log(" accepting network in place of " + currentNetwork.name()); 5768 currentNetwork.networkRequests.remove(nri.request.requestId); 5769 currentNetwork.networkLingered.add(nri.request); 5770 affectedNetworks.add(currentNetwork); 5771 } else { 5772 if (VDBG) log(" accepting network in place of null"); 5773 } 5774 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 5775 newNetwork.addRequest(nri.request); 5776 int legacyType = nri.request.legacyType; 5777 if (legacyType != TYPE_NONE) { 5778 mLegacyTypeTracker.add(legacyType, newNetwork); 5779 } 5780 keep = true; 5781 // TODO - this could get expensive if we have alot of requests for this 5782 // network. Think about if there is a way to reduce this. Push 5783 // netid->request mapping to each factory? 5784 sendUpdatedScoreToFactories(nri.request, newNetwork.currentScore); 5785 if (mDefaultRequest.requestId == nri.request.requestId) { 5786 isNewDefault = true; 5787 updateActiveDefaultNetwork(newNetwork); 5788 if (newNetwork.linkProperties != null) { 5789 setDefaultDnsSystemProperties(newNetwork.linkProperties.getDnses()); 5790 } else { 5791 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 5792 } 5793 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 5794 } 5795 } 5796 } 5797 } 5798 for (NetworkAgentInfo nai : affectedNetworks) { 5799 boolean teardown = true; 5800 for (int i = 0; i < nai.networkRequests.size(); i++) { 5801 NetworkRequest nr = nai.networkRequests.valueAt(i); 5802 try { 5803 if (mNetworkRequests.get(nr).isRequest) { 5804 teardown = false; 5805 } 5806 } catch (Exception e) { 5807 loge("Request " + nr + " not found in mNetworkRequests."); 5808 loge(" it came from request list of " + nai.name()); 5809 } 5810 } 5811 if (teardown) { 5812 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 5813 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 5814 } else { 5815 // not going to linger, so kill the list of linger networks.. only 5816 // notify them of linger if it happens as the result of gaining another, 5817 // but if they transition and old network stays up, don't tell them of linger 5818 // or very delayed loss 5819 nai.networkLingered.clear(); 5820 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 5821 } 5822 } 5823 if (keep) { 5824 if (isNewDefault) { 5825 if (VDBG) log("Switching to new default network: " + newNetwork); 5826 setupDataActivityTracking(newNetwork); 5827 try { 5828 mNetd.setDefaultNetId(newNetwork.network.netId); 5829 } catch (Exception e) { 5830 loge("Exception setting default network :" + e); 5831 } 5832 if (newNetwork.equals(mNetworkForRequestId.get(mDefaultRequest.requestId))) { 5833 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 5834 } 5835 synchronized (ConnectivityService.this) { 5836 // have a new default network, release the transition wakelock in 5837 // a second if it's held. The second pause is to allow apps 5838 // to reconnect over the new network 5839 if (mNetTransitionWakeLock.isHeld()) { 5840 mHandler.sendMessageDelayed(mHandler.obtainMessage( 5841 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 5842 mNetTransitionWakeLockSerialNumber, 0), 5843 1000); 5844 } 5845 } 5846 5847 // this will cause us to come up initially as unconnected and switching 5848 // to connected after our normal pause unless somebody reports us as 5849 // really disconnected 5850 mDefaultInetConditionPublished = 0; 5851 mDefaultConnectionSequence++; 5852 mInetConditionChangeInFlight = false; 5853 // TODO - read the tcp buffer size config string from somewhere 5854 // updateNetworkSettings(); 5855 } 5856 // notify battery stats service about this network 5857 try { 5858 BatteryStatsService.getService().noteNetworkInterfaceType( 5859 newNetwork.linkProperties.getInterfaceName(), 5860 newNetwork.networkInfo.getType()); 5861 } catch (RemoteException e) { } 5862 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 5863 } else { 5864 if (DBG && newNetwork.networkRequests.size() != 0) { 5865 loge("tearing down network with live requests:"); 5866 for (int i=0; i < newNetwork.networkRequests.size(); i++) { 5867 loge(" " + newNetwork.networkRequests.valueAt(i)); 5868 } 5869 } 5870 if (VDBG) log("Validated network turns out to be unwanted. Tear it down."); 5871 newNetwork.asyncChannel.disconnect(); 5872 } 5873 } 5874 5875 5876 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 5877 NetworkInfo.State state = newInfo.getState(); 5878 NetworkInfo oldInfo = networkAgent.networkInfo; 5879 networkAgent.networkInfo = newInfo; 5880 5881 if (oldInfo != null && oldInfo.getState() == state) { 5882 if (VDBG) log("ignoring duplicate network state non-change"); 5883 return; 5884 } 5885 if (DBG) { 5886 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 5887 (oldInfo == null ? "null" : oldInfo.getState()) + 5888 " to " + state); 5889 } 5890 5891 if (state == NetworkInfo.State.CONNECTED) { 5892 try { 5893 // This is likely caused by the fact that this network already 5894 // exists. An example is when a network goes from CONNECTED to 5895 // CONNECTING and back (like wifi on DHCP renew). 5896 // TODO: keep track of which networks we've created, or ask netd 5897 // to tell us whether we've already created this network or not. 5898 mNetd.createNetwork(networkAgent.network.netId); 5899 } catch (Exception e) { 5900 loge("Error creating network " + networkAgent.network.netId + ": " 5901 + e.getMessage()); 5902 return; 5903 } 5904 5905 updateLinkProperties(networkAgent, null); 5906 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 5907 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 5908 } else if (state == NetworkInfo.State.DISCONNECTED || 5909 state == NetworkInfo.State.SUSPENDED) { 5910 networkAgent.asyncChannel.disconnect(); 5911 } 5912 } 5913 5914 private void updateNetworkScore(NetworkAgentInfo nai, Integer scoreInteger) { 5915 int score = scoreInteger.intValue(); 5916 // TODO 5917 } 5918 5919 // notify only this one new request of the current state 5920 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 5921 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 5922 // TODO - read state from monitor to decide what to send. 5923// if (nai.networkMonitor.isLingering()) { 5924// notifyType = NetworkCallbacks.LOSING; 5925// } else if (nai.networkMonitor.isEvaluating()) { 5926// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 5927// } 5928 callCallbackForRequest(nri, nai, notifyType); 5929 } 5930 5931 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 5932 if (connected) { 5933 NetworkInfo info = new NetworkInfo(nai.networkInfo); 5934 info.setType(type); 5935 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 5936 } else { 5937 NetworkInfo info = new NetworkInfo(nai.networkInfo); 5938 info.setType(type); 5939 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 5940 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 5941 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 5942 if (info.isFailover()) { 5943 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 5944 nai.networkInfo.setFailover(false); 5945 } 5946 if (info.getReason() != null) { 5947 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 5948 } 5949 if (info.getExtraInfo() != null) { 5950 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 5951 } 5952 NetworkAgentInfo newDefaultAgent = null; 5953 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 5954 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 5955 if (newDefaultAgent != null) { 5956 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 5957 newDefaultAgent.networkInfo); 5958 } else { 5959 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 5960 } 5961 } 5962 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 5963 mDefaultInetConditionPublished); 5964 final Intent immediateIntent = new Intent(intent); 5965 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 5966 sendStickyBroadcast(immediateIntent); 5967 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 5968 if (newDefaultAgent != null) { 5969 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 5970 getConnectivityChangeDelay()); 5971 } 5972 } 5973 } 5974 5975 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 5976 if (VDBG) log("notifyType " + notifyType + " for " + networkAgent.name()); 5977 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 5978 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 5979 NetworkRequestInfo nri = mNetworkRequests.get(nr); 5980 if (VDBG) log(" sending notification for " + nr); 5981 callCallbackForRequest(nri, networkAgent, notifyType); 5982 } 5983 } 5984 5985 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 5986 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 5987 return (nai != null) ? 5988 new LinkProperties(nai.linkProperties) : 5989 new LinkProperties(); 5990 } 5991 5992 private NetworkInfo getNetworkInfoForType(int networkType) { 5993 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 5994 return null; 5995 5996 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 5997 if (nai != null) { 5998 NetworkInfo result = new NetworkInfo(nai.networkInfo); 5999 result.setType(networkType); 6000 return result; 6001 } else { 6002 return new NetworkInfo(networkType, 0, "Unknown", ""); 6003 } 6004 } 6005 6006 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 6007 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 6008 return (nai != null) ? 6009 new NetworkCapabilities(nai.networkCapabilities) : 6010 new NetworkCapabilities(); 6011 } 6012} 6013