ConnectivityService.java revision 6bc2c2c34f2b23eae79ad733c97a691734055c4f
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.TYPE_BLUETOOTH; 24import static android.net.ConnectivityManager.TYPE_DUMMY; 25import static android.net.ConnectivityManager.TYPE_MOBILE; 26import static android.net.ConnectivityManager.TYPE_MOBILE_MMS; 27import static android.net.ConnectivityManager.TYPE_MOBILE_SUPL; 28import static android.net.ConnectivityManager.TYPE_MOBILE_DUN; 29import static android.net.ConnectivityManager.TYPE_MOBILE_FOTA; 30import static android.net.ConnectivityManager.TYPE_MOBILE_IMS; 31import static android.net.ConnectivityManager.TYPE_MOBILE_CBS; 32import static android.net.ConnectivityManager.TYPE_MOBILE_IA; 33import static android.net.ConnectivityManager.TYPE_MOBILE_HIPRI; 34import static android.net.ConnectivityManager.TYPE_NONE; 35import static android.net.ConnectivityManager.TYPE_WIFI; 36import static android.net.ConnectivityManager.TYPE_WIMAX; 37import static android.net.ConnectivityManager.TYPE_PROXY; 38import static android.net.ConnectivityManager.getNetworkTypeName; 39import static android.net.ConnectivityManager.isNetworkTypeValid; 40import static android.net.NetworkPolicyManager.RULE_ALLOW_ALL; 41import static android.net.NetworkPolicyManager.RULE_REJECT_METERED; 42 43import android.app.AlarmManager; 44import android.app.AppOpsManager; 45import android.app.Notification; 46import android.app.NotificationManager; 47import android.app.PendingIntent; 48import android.content.ActivityNotFoundException; 49import android.content.BroadcastReceiver; 50import android.content.ContentResolver; 51import android.content.Context; 52import android.content.ContextWrapper; 53import android.content.Intent; 54import android.content.IntentFilter; 55import android.content.pm.ApplicationInfo; 56import android.content.pm.PackageManager; 57import android.content.pm.PackageManager.NameNotFoundException; 58import android.content.res.Configuration; 59import android.content.res.Resources; 60import android.database.ContentObserver; 61import android.net.CaptivePortalTracker; 62import android.net.ConnectivityManager; 63import android.net.IConnectivityManager; 64import android.net.INetworkManagementEventObserver; 65import android.net.INetworkPolicyListener; 66import android.net.INetworkPolicyManager; 67import android.net.INetworkStatsService; 68import android.net.LinkAddress; 69import android.net.LinkProperties; 70import android.net.LinkProperties.CompareResult; 71import android.net.LinkQualityInfo; 72import android.net.MobileDataStateTracker; 73import android.net.Network; 74import android.net.NetworkAgent; 75import android.net.NetworkCapabilities; 76import android.net.NetworkConfig; 77import android.net.NetworkInfo; 78import android.net.NetworkInfo.DetailedState; 79import android.net.NetworkFactory; 80import android.net.NetworkQuotaInfo; 81import android.net.NetworkRequest; 82import android.net.NetworkState; 83import android.net.NetworkStateTracker; 84import android.net.NetworkUtils; 85import android.net.Proxy; 86import android.net.ProxyDataTracker; 87import android.net.ProxyInfo; 88import android.net.RouteInfo; 89import android.net.SamplingDataTracker; 90import android.net.UidRange; 91import android.net.Uri; 92import android.net.wimax.WimaxManagerConstants; 93import android.os.AsyncTask; 94import android.os.Binder; 95import android.os.Build; 96import android.os.FileUtils; 97import android.os.Handler; 98import android.os.HandlerThread; 99import android.os.IBinder; 100import android.os.INetworkManagementService; 101import android.os.Looper; 102import android.os.Message; 103import android.os.Messenger; 104import android.os.ParcelFileDescriptor; 105import android.os.PowerManager; 106import android.os.Process; 107import android.os.RemoteException; 108import android.os.ServiceManager; 109import android.os.SystemClock; 110import android.os.SystemProperties; 111import android.os.UserHandle; 112import android.os.UserManager; 113import android.provider.Settings; 114import android.security.Credentials; 115import android.security.KeyStore; 116import android.telephony.TelephonyManager; 117import android.text.TextUtils; 118import android.util.Slog; 119import android.util.SparseArray; 120import android.util.SparseIntArray; 121import android.util.Xml; 122 123import com.android.internal.R; 124import com.android.internal.annotations.GuardedBy; 125import com.android.internal.net.LegacyVpnInfo; 126import com.android.internal.net.VpnConfig; 127import com.android.internal.net.VpnProfile; 128import com.android.internal.telephony.DctConstants; 129import com.android.internal.telephony.Phone; 130import com.android.internal.telephony.PhoneConstants; 131import com.android.internal.telephony.TelephonyIntents; 132import com.android.internal.util.AsyncChannel; 133import com.android.internal.util.IndentingPrintWriter; 134import com.android.internal.util.XmlUtils; 135import com.android.server.am.BatteryStatsService; 136import com.android.server.connectivity.DataConnectionStats; 137import com.android.server.connectivity.Nat464Xlat; 138import com.android.server.connectivity.NetworkAgentInfo; 139import com.android.server.connectivity.NetworkMonitor; 140import com.android.server.connectivity.PacManager; 141import com.android.server.connectivity.Tethering; 142import com.android.server.connectivity.Vpn; 143import com.android.server.net.BaseNetworkObserver; 144import com.android.server.net.LockdownVpnTracker; 145import com.google.android.collect.Lists; 146import com.google.android.collect.Sets; 147 148import dalvik.system.DexClassLoader; 149 150import org.xmlpull.v1.XmlPullParser; 151import org.xmlpull.v1.XmlPullParserException; 152 153import java.io.File; 154import java.io.FileDescriptor; 155import java.io.FileNotFoundException; 156import java.io.FileReader; 157import java.io.IOException; 158import java.io.PrintWriter; 159import java.lang.reflect.Constructor; 160import java.net.HttpURLConnection; 161import java.net.Inet4Address; 162import java.net.Inet6Address; 163import java.net.InetAddress; 164import java.net.URL; 165import java.net.UnknownHostException; 166import java.util.ArrayList; 167import java.util.Arrays; 168import java.util.Collection; 169import java.util.GregorianCalendar; 170import java.util.HashMap; 171import java.util.HashSet; 172import java.util.List; 173import java.util.Map; 174import java.util.Random; 175import java.util.concurrent.atomic.AtomicBoolean; 176import java.util.concurrent.atomic.AtomicInteger; 177 178import javax.net.ssl.HostnameVerifier; 179import javax.net.ssl.HttpsURLConnection; 180import javax.net.ssl.SSLSession; 181 182import static android.net.ConnectivityManager.INVALID_NET_ID; 183 184/** 185 * @hide 186 */ 187public class ConnectivityService extends IConnectivityManager.Stub { 188 private static final String TAG = "ConnectivityService"; 189 190 private static final boolean DBG = true; 191 private static final boolean VDBG = true; // STOPSHIP 192 193 // network sampling debugging 194 private static final boolean SAMPLE_DBG = false; 195 196 private static final boolean LOGD_RULES = false; 197 198 // TODO: create better separation between radio types and network types 199 200 // how long to wait before switching back to a radio's default network 201 private static final int RESTORE_DEFAULT_NETWORK_DELAY = 1 * 60 * 1000; 202 // system property that can override the above value 203 private static final String NETWORK_RESTORE_DELAY_PROP_NAME = 204 "android.telephony.apn-restore"; 205 206 // Default value if FAIL_FAST_TIME_MS is not set 207 private static final int DEFAULT_FAIL_FAST_TIME_MS = 1 * 60 * 1000; 208 // system property that can override DEFAULT_FAIL_FAST_TIME_MS 209 private static final String FAIL_FAST_TIME_MS = 210 "persist.radio.fail_fast_time_ms"; 211 212 private static final String ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED = 213 "android.net.ConnectivityService.action.PKT_CNT_SAMPLE_INTERVAL_ELAPSED"; 214 215 private static final int SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE = 0; 216 217 private PendingIntent mSampleIntervalElapsedIntent; 218 219 // Set network sampling interval at 12 minutes, this way, even if the timers get 220 // aggregated, it will fire at around 15 minutes, which should allow us to 221 // aggregate this timer with other timers (specially the socket keep alive timers) 222 private static final int DEFAULT_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 12 * 60); 223 224 // start network sampling a minute after booting ... 225 private static final int DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 60); 226 227 AlarmManager mAlarmManager; 228 229 // used in recursive route setting to add gateways for the host for which 230 // a host route was requested. 231 private static final int MAX_HOSTROUTE_CYCLE_COUNT = 10; 232 233 private Tethering mTethering; 234 235 private KeyStore mKeyStore; 236 237 @GuardedBy("mVpns") 238 private final SparseArray<Vpn> mVpns = new SparseArray<Vpn>(); 239 240 private boolean mLockdownEnabled; 241 private LockdownVpnTracker mLockdownTracker; 242 243 private Nat464Xlat mClat; 244 245 /** Lock around {@link #mUidRules} and {@link #mMeteredIfaces}. */ 246 private Object mRulesLock = new Object(); 247 /** Currently active network rules by UID. */ 248 private SparseIntArray mUidRules = new SparseIntArray(); 249 /** Set of ifaces that are costly. */ 250 private HashSet<String> mMeteredIfaces = Sets.newHashSet(); 251 252 /** 253 * Sometimes we want to refer to the individual network state 254 * trackers separately, and sometimes we just want to treat them 255 * abstractly. 256 */ 257 private NetworkStateTracker mNetTrackers[]; 258 259 /* 260 * Handles captive portal check on a network. 261 * Only set if device has {@link PackageManager#FEATURE_WIFI}. 262 */ 263 private CaptivePortalTracker mCaptivePortalTracker; 264 265 /** 266 * The link properties that define the current links 267 */ 268 private LinkProperties mCurrentLinkProperties[]; 269 270 /** 271 * A per Net list of the PID's that requested access to the net 272 * used both as a refcount and for per-PID DNS selection 273 */ 274 private List<Integer> mNetRequestersPids[]; 275 276 // priority order of the nettrackers 277 // (excluding dynamically set mNetworkPreference) 278 // TODO - move mNetworkTypePreference into this 279 private int[] mPriorityList; 280 281 private Context mContext; 282 private int mNetworkPreference; 283 private int mActiveDefaultNetwork = -1; 284 // 0 is full bad, 100 is full good 285 private int mDefaultInetCondition = 0; 286 private int mDefaultInetConditionPublished = 0; 287 private boolean mInetConditionChangeInFlight = false; 288 private int mDefaultConnectionSequence = 0; 289 290 private Object mDnsLock = new Object(); 291 private int mNumDnsEntries; 292 293 private boolean mTestMode; 294 private static ConnectivityService sServiceInstance; 295 296 private INetworkManagementService mNetd; 297 private INetworkPolicyManager mPolicyManager; 298 299 private static final int ENABLED = 1; 300 private static final int DISABLED = 0; 301 302 private static final boolean ADD = true; 303 private static final boolean REMOVE = false; 304 305 private static final boolean TO_DEFAULT_TABLE = true; 306 private static final boolean TO_SECONDARY_TABLE = false; 307 308 private static final boolean EXEMPT = true; 309 private static final boolean UNEXEMPT = false; 310 311 /** 312 * used internally as a delayed event to make us switch back to the 313 * default network 314 */ 315 private static final int EVENT_RESTORE_DEFAULT_NETWORK = 1; 316 317 /** 318 * used internally to change our mobile data enabled flag 319 */ 320 private static final int EVENT_CHANGE_MOBILE_DATA_ENABLED = 2; 321 322 /** 323 * used internally to synchronize inet condition reports 324 * arg1 = networkType 325 * arg2 = condition (0 bad, 100 good) 326 */ 327 private static final int EVENT_INET_CONDITION_CHANGE = 4; 328 329 /** 330 * used internally to mark the end of inet condition hold periods 331 * arg1 = networkType 332 */ 333 private static final int EVENT_INET_CONDITION_HOLD_END = 5; 334 335 /** 336 * used internally to clear a wakelock when transitioning 337 * from one net to another. Clear happens when we get a new 338 * network - EVENT_EXPIRE_NET_TRANSITION_WAKELOCK happens 339 * after a timeout if no network is found (typically 1 min). 340 */ 341 private static final int EVENT_CLEAR_NET_TRANSITION_WAKELOCK = 8; 342 343 /** 344 * used internally to reload global proxy settings 345 */ 346 private static final int EVENT_APPLY_GLOBAL_HTTP_PROXY = 9; 347 348 /** 349 * used internally to set external dependency met/unmet 350 * arg1 = ENABLED (met) or DISABLED (unmet) 351 * arg2 = NetworkType 352 */ 353 private static final int EVENT_SET_DEPENDENCY_MET = 10; 354 355 /** 356 * used internally to send a sticky broadcast delayed. 357 */ 358 private static final int EVENT_SEND_STICKY_BROADCAST_INTENT = 11; 359 360 /** 361 * Used internally to 362 * {@link NetworkStateTracker#setPolicyDataEnable(boolean)}. 363 */ 364 private static final int EVENT_SET_POLICY_DATA_ENABLE = 12; 365 366 /** 367 * Used internally to disable fail fast of mobile data 368 */ 369 private static final int EVENT_ENABLE_FAIL_FAST_MOBILE_DATA = 14; 370 371 /** 372 * used internally to indicate that data sampling interval is up 373 */ 374 private static final int EVENT_SAMPLE_INTERVAL_ELAPSED = 15; 375 376 /** 377 * PAC manager has received new port. 378 */ 379 private static final int EVENT_PROXY_HAS_CHANGED = 16; 380 381 /** 382 * used internally when registering NetworkFactories 383 * obj = NetworkFactoryInfo 384 */ 385 private static final int EVENT_REGISTER_NETWORK_FACTORY = 17; 386 387 /** 388 * used internally when registering NetworkAgents 389 * obj = Messenger 390 */ 391 private static final int EVENT_REGISTER_NETWORK_AGENT = 18; 392 393 /** 394 * used to add a network request 395 * includes a NetworkRequestInfo 396 */ 397 private static final int EVENT_REGISTER_NETWORK_REQUEST = 19; 398 399 /** 400 * indicates a timeout period is over - check if we had a network yet or not 401 * and if not, call the timeout calback (but leave the request live until they 402 * cancel it. 403 * includes a NetworkRequestInfo 404 */ 405 private static final int EVENT_TIMEOUT_NETWORK_REQUEST = 20; 406 407 /** 408 * used to add a network listener - no request 409 * includes a NetworkRequestInfo 410 */ 411 private static final int EVENT_REGISTER_NETWORK_LISTENER = 21; 412 413 /** 414 * used to remove a network request, either a listener or a real request 415 * arg1 = UID of caller 416 * obj = NetworkRequest 417 */ 418 private static final int EVENT_RELEASE_NETWORK_REQUEST = 22; 419 420 /** 421 * used internally when registering NetworkFactories 422 * obj = Messenger 423 */ 424 private static final int EVENT_UNREGISTER_NETWORK_FACTORY = 23; 425 426 /** 427 * used internally to expire a wakelock when transitioning 428 * from one net to another. Expire happens when we fail to find 429 * a new network (typically after 1 minute) - 430 * EVENT_CLEAR_NET_TRANSITION_WAKELOCK happens if we had found 431 * a replacement network. 432 */ 433 private static final int EVENT_EXPIRE_NET_TRANSITION_WAKELOCK = 24; 434 435 436 /** Handler used for internal events. */ 437 final private InternalHandler mHandler; 438 /** Handler used for incoming {@link NetworkStateTracker} events. */ 439 final private NetworkStateTrackerHandler mTrackerHandler; 440 441 // list of DeathRecipients used to make sure features are turned off when 442 // a process dies 443 private List<FeatureUser> mFeatureUsers; 444 445 private boolean mSystemReady; 446 private Intent mInitialBroadcast; 447 448 private PowerManager.WakeLock mNetTransitionWakeLock; 449 private String mNetTransitionWakeLockCausedBy = ""; 450 private int mNetTransitionWakeLockSerialNumber; 451 private int mNetTransitionWakeLockTimeout; 452 453 private InetAddress mDefaultDns; 454 455 // Lock for protecting access to mAddedRoutes and mExemptAddresses 456 private final Object mRoutesLock = new Object(); 457 458 // this collection is used to refcount the added routes - if there are none left 459 // it's time to remove the route from the route table 460 @GuardedBy("mRoutesLock") 461 private Collection<RouteInfo> mAddedRoutes = new ArrayList<RouteInfo>(); 462 463 // this collection corresponds to the entries of mAddedRoutes that have routing exemptions 464 // used to handle cleanup of exempt rules 465 @GuardedBy("mRoutesLock") 466 private Collection<LinkAddress> mExemptAddresses = new ArrayList<LinkAddress>(); 467 468 // used in DBG mode to track inet condition reports 469 private static final int INET_CONDITION_LOG_MAX_SIZE = 15; 470 private ArrayList mInetLog; 471 472 // track the current default http proxy - tell the world if we get a new one (real change) 473 private ProxyInfo mDefaultProxy = null; 474 private Object mProxyLock = new Object(); 475 private boolean mDefaultProxyDisabled = false; 476 477 // track the global proxy. 478 private ProxyInfo mGlobalProxy = null; 479 480 private PacManager mPacManager = null; 481 482 private SettingsObserver mSettingsObserver; 483 484 private AppOpsManager mAppOpsManager; 485 486 private UserManager mUserManager; 487 488 NetworkConfig[] mNetConfigs; 489 int mNetworksDefined; 490 491 private static class RadioAttributes { 492 public int mSimultaneity; 493 public int mType; 494 public RadioAttributes(String init) { 495 String fragments[] = init.split(","); 496 mType = Integer.parseInt(fragments[0]); 497 mSimultaneity = Integer.parseInt(fragments[1]); 498 } 499 } 500 RadioAttributes[] mRadioAttributes; 501 502 // the set of network types that can only be enabled by system/sig apps 503 List mProtectedNetworks; 504 505 private DataConnectionStats mDataConnectionStats; 506 507 private AtomicInteger mEnableFailFastMobileDataTag = new AtomicInteger(0); 508 509 TelephonyManager mTelephonyManager; 510 511 // sequence number for Networks 512 private final static int MIN_NET_ID = 10; // some reserved marks 513 private final static int MAX_NET_ID = 65535; 514 private int mNextNetId = MIN_NET_ID; 515 516 // sequence number of NetworkRequests 517 private int mNextNetworkRequestId = 1; 518 519 private static final int UID_UNUSED = -1; 520 521 /** 522 * Implements support for the legacy "one network per network type" model. 523 * 524 * We used to have a static array of NetworkStateTrackers, one for each 525 * network type, but that doesn't work any more now that we can have, 526 * for example, more that one wifi network. This class stores all the 527 * NetworkAgentInfo objects that support a given type, but the legacy 528 * API will only see the first one. 529 * 530 * It serves two main purposes: 531 * 532 * 1. Provide information about "the network for a given type" (since this 533 * API only supports one). 534 * 2. Send legacy connectivity change broadcasts. Broadcasts are sent if 535 * the first network for a given type changes, or if the default network 536 * changes. 537 */ 538 private class LegacyTypeTracker { 539 /** 540 * Array of lists, one per legacy network type (e.g., TYPE_MOBILE_MMS). 541 * Each list holds references to all NetworkAgentInfos that are used to 542 * satisfy requests for that network type. 543 * 544 * This array is built out at startup such that an unsupported network 545 * doesn't get an ArrayList instance, making this a tristate: 546 * unsupported, supported but not active and active. 547 * 548 * The actual lists are populated when we scan the network types that 549 * are supported on this device. 550 */ 551 private ArrayList<NetworkAgentInfo> mTypeLists[]; 552 553 public LegacyTypeTracker() { 554 mTypeLists = (ArrayList<NetworkAgentInfo>[]) 555 new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE + 1]; 556 } 557 558 public void addSupportedType(int type) { 559 if (mTypeLists[type] != null) { 560 throw new IllegalStateException( 561 "legacy list for type " + type + "already initialized"); 562 } 563 mTypeLists[type] = new ArrayList<NetworkAgentInfo>(); 564 } 565 566 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 567 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 568 } 569 570 public boolean isTypeSupported(int type) { 571 return isNetworkTypeValid(type) && mTypeLists[type] != null; 572 } 573 574 public NetworkAgentInfo getNetworkForType(int type) { 575 if (isTypeSupported(type) && !mTypeLists[type].isEmpty()) { 576 return mTypeLists[type].get(0); 577 } else { 578 return null; 579 } 580 } 581 582 public void add(int type, NetworkAgentInfo nai) { 583 if (!isTypeSupported(type)) { 584 return; // Invalid network type. 585 } 586 if (VDBG) log("Adding agent " + nai + " for legacy network type " + type); 587 588 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 589 if (list.contains(nai)) { 590 loge("Attempting to register duplicate agent for type " + type + ": " + nai); 591 return; 592 } 593 594 if (list.isEmpty() || isDefaultNetwork(nai)) { 595 if (VDBG) log("Sending connected broadcast for type " + type + 596 "isDefaultNetwork=" + isDefaultNetwork(nai)); 597 sendLegacyNetworkBroadcast(nai, true, type); 598 } 599 list.add(nai); 600 } 601 602 public void remove(NetworkAgentInfo nai) { 603 if (VDBG) log("Removing agent " + nai); 604 for (int type = 0; type < mTypeLists.length; type++) { 605 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 606 if (list == null || list.isEmpty()) { 607 continue; 608 } 609 610 boolean wasFirstNetwork = false; 611 if (list.get(0).equals(nai)) { 612 // This network was the first in the list. Send broadcast. 613 wasFirstNetwork = true; 614 } 615 list.remove(nai); 616 617 if (wasFirstNetwork || isDefaultNetwork(nai)) { 618 if (VDBG) log("Sending disconnected broadcast for type " + type + 619 "isDefaultNetwork=" + isDefaultNetwork(nai)); 620 sendLegacyNetworkBroadcast(nai, false, type); 621 } 622 623 if (!list.isEmpty() && wasFirstNetwork) { 624 if (VDBG) log("Other network available for type " + type + 625 ", sending connected broadcast"); 626 sendLegacyNetworkBroadcast(list.get(0), false, type); 627 } 628 } 629 } 630 } 631 private LegacyTypeTracker mLegacyTypeTracker = new LegacyTypeTracker(); 632 633 public ConnectivityService(Context context, INetworkManagementService netd, 634 INetworkStatsService statsService, INetworkPolicyManager policyManager) { 635 // Currently, omitting a NetworkFactory will create one internally 636 // TODO: create here when we have cleaner WiMAX support 637 this(context, netd, statsService, policyManager, null); 638 } 639 640 public ConnectivityService(Context context, INetworkManagementService netManager, 641 INetworkStatsService statsService, INetworkPolicyManager policyManager, 642 NetworkFactory netFactory) { 643 if (DBG) log("ConnectivityService starting up"); 644 645 NetworkCapabilities netCap = new NetworkCapabilities(); 646 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 647 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 648 mDefaultRequest = new NetworkRequest(netCap, TYPE_NONE, nextNetworkRequestId()); 649 NetworkRequestInfo nri = new NetworkRequestInfo(null, mDefaultRequest, new Binder(), 650 NetworkRequestInfo.REQUEST); 651 mNetworkRequests.put(mDefaultRequest, nri); 652 653 HandlerThread handlerThread = new HandlerThread("ConnectivityServiceThread"); 654 handlerThread.start(); 655 mHandler = new InternalHandler(handlerThread.getLooper()); 656 mTrackerHandler = new NetworkStateTrackerHandler(handlerThread.getLooper()); 657 658 if (netFactory == null) { 659 netFactory = new DefaultNetworkFactory(context, mTrackerHandler); 660 } 661 662 // setup our unique device name 663 if (TextUtils.isEmpty(SystemProperties.get("net.hostname"))) { 664 String id = Settings.Secure.getString(context.getContentResolver(), 665 Settings.Secure.ANDROID_ID); 666 if (id != null && id.length() > 0) { 667 String name = new String("android-").concat(id); 668 SystemProperties.set("net.hostname", name); 669 } 670 } 671 672 // read our default dns server ip 673 String dns = Settings.Global.getString(context.getContentResolver(), 674 Settings.Global.DEFAULT_DNS_SERVER); 675 if (dns == null || dns.length() == 0) { 676 dns = context.getResources().getString( 677 com.android.internal.R.string.config_default_dns_server); 678 } 679 try { 680 mDefaultDns = NetworkUtils.numericToInetAddress(dns); 681 } catch (IllegalArgumentException e) { 682 loge("Error setting defaultDns using " + dns); 683 } 684 685 mContext = checkNotNull(context, "missing Context"); 686 mNetd = checkNotNull(netManager, "missing INetworkManagementService"); 687 mPolicyManager = checkNotNull(policyManager, "missing INetworkPolicyManager"); 688 mKeyStore = KeyStore.getInstance(); 689 mTelephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 690 691 try { 692 mPolicyManager.registerListener(mPolicyListener); 693 } catch (RemoteException e) { 694 // ouch, no rules updates means some processes may never get network 695 loge("unable to register INetworkPolicyListener" + e.toString()); 696 } 697 698 final PowerManager powerManager = (PowerManager) context.getSystemService( 699 Context.POWER_SERVICE); 700 mNetTransitionWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); 701 mNetTransitionWakeLockTimeout = mContext.getResources().getInteger( 702 com.android.internal.R.integer.config_networkTransitionTimeout); 703 704 mNetTrackers = new NetworkStateTracker[ 705 ConnectivityManager.MAX_NETWORK_TYPE+1]; 706 mCurrentLinkProperties = new LinkProperties[ConnectivityManager.MAX_NETWORK_TYPE+1]; 707 708 mRadioAttributes = new RadioAttributes[ConnectivityManager.MAX_RADIO_TYPE+1]; 709 mNetConfigs = new NetworkConfig[ConnectivityManager.MAX_NETWORK_TYPE+1]; 710 711 // Load device network attributes from resources 712 String[] raStrings = context.getResources().getStringArray( 713 com.android.internal.R.array.radioAttributes); 714 for (String raString : raStrings) { 715 RadioAttributes r = new RadioAttributes(raString); 716 if (VDBG) log("raString=" + raString + " r=" + r); 717 if (r.mType > ConnectivityManager.MAX_RADIO_TYPE) { 718 loge("Error in radioAttributes - ignoring attempt to define type " + r.mType); 719 continue; 720 } 721 if (mRadioAttributes[r.mType] != null) { 722 loge("Error in radioAttributes - ignoring attempt to redefine type " + 723 r.mType); 724 continue; 725 } 726 mRadioAttributes[r.mType] = r; 727 } 728 729 // TODO: What is the "correct" way to do determine if this is a wifi only device? 730 boolean wifiOnly = SystemProperties.getBoolean("ro.radio.noril", false); 731 log("wifiOnly=" + wifiOnly); 732 String[] naStrings = context.getResources().getStringArray( 733 com.android.internal.R.array.networkAttributes); 734 for (String naString : naStrings) { 735 try { 736 NetworkConfig n = new NetworkConfig(naString); 737 if (VDBG) log("naString=" + naString + " config=" + n); 738 if (n.type > ConnectivityManager.MAX_NETWORK_TYPE) { 739 loge("Error in networkAttributes - ignoring attempt to define type " + 740 n.type); 741 continue; 742 } 743 if (wifiOnly && ConnectivityManager.isNetworkTypeMobile(n.type)) { 744 log("networkAttributes - ignoring mobile as this dev is wifiOnly " + 745 n.type); 746 continue; 747 } 748 if (mNetConfigs[n.type] != null) { 749 loge("Error in networkAttributes - ignoring attempt to redefine type " + 750 n.type); 751 continue; 752 } 753 if (mRadioAttributes[n.radio] == null) { 754 loge("Error in networkAttributes - ignoring attempt to use undefined " + 755 "radio " + n.radio + " in network type " + n.type); 756 continue; 757 } 758 mLegacyTypeTracker.addSupportedType(n.type); 759 760 mNetConfigs[n.type] = n; 761 mNetworksDefined++; 762 } catch(Exception e) { 763 // ignore it - leave the entry null 764 } 765 } 766 if (VDBG) log("mNetworksDefined=" + mNetworksDefined); 767 768 mProtectedNetworks = new ArrayList<Integer>(); 769 int[] protectedNetworks = context.getResources().getIntArray( 770 com.android.internal.R.array.config_protectedNetworks); 771 for (int p : protectedNetworks) { 772 if ((mNetConfigs[p] != null) && (mProtectedNetworks.contains(p) == false)) { 773 mProtectedNetworks.add(p); 774 } else { 775 if (DBG) loge("Ignoring protectedNetwork " + p); 776 } 777 } 778 779 // high priority first 780 mPriorityList = new int[mNetworksDefined]; 781 { 782 int insertionPoint = mNetworksDefined-1; 783 int currentLowest = 0; 784 int nextLowest = 0; 785 while (insertionPoint > -1) { 786 for (NetworkConfig na : mNetConfigs) { 787 if (na == null) continue; 788 if (na.priority < currentLowest) continue; 789 if (na.priority > currentLowest) { 790 if (na.priority < nextLowest || nextLowest == 0) { 791 nextLowest = na.priority; 792 } 793 continue; 794 } 795 mPriorityList[insertionPoint--] = na.type; 796 } 797 currentLowest = nextLowest; 798 nextLowest = 0; 799 } 800 } 801 802 mNetRequestersPids = 803 (List<Integer> [])new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE+1]; 804 for (int i : mPriorityList) { 805 mNetRequestersPids[i] = new ArrayList<Integer>(); 806 } 807 808 mFeatureUsers = new ArrayList<FeatureUser>(); 809 810 mTestMode = SystemProperties.get("cm.test.mode").equals("true") 811 && SystemProperties.get("ro.build.type").equals("eng"); 812 813 // Create and start trackers for hard-coded networks 814 for (int targetNetworkType : mPriorityList) { 815 final NetworkConfig config = mNetConfigs[targetNetworkType]; 816 final NetworkStateTracker tracker; 817 try { 818 tracker = netFactory.createTracker(targetNetworkType, config); 819 mNetTrackers[targetNetworkType] = tracker; 820 } catch (IllegalArgumentException e) { 821 Slog.e(TAG, "Problem creating " + getNetworkTypeName(targetNetworkType) 822 + " tracker: " + e); 823 continue; 824 } 825 826 tracker.startMonitoring(context, mTrackerHandler); 827 if (config.isDefault()) { 828 tracker.reconnect(); 829 } 830 } 831 832 mTethering = new Tethering(mContext, mNetd, statsService, this, mHandler.getLooper()); 833 834 //set up the listener for user state for creating user VPNs 835 IntentFilter intentFilter = new IntentFilter(); 836 intentFilter.addAction(Intent.ACTION_USER_STARTING); 837 intentFilter.addAction(Intent.ACTION_USER_STOPPING); 838 mContext.registerReceiverAsUser( 839 mUserIntentReceiver, UserHandle.ALL, intentFilter, null, null); 840 mClat = new Nat464Xlat(mContext, mNetd, this, mTrackerHandler); 841 842 try { 843 mNetd.registerObserver(mTethering); 844 mNetd.registerObserver(mDataActivityObserver); 845 mNetd.registerObserver(mClat); 846 } catch (RemoteException e) { 847 loge("Error registering observer :" + e); 848 } 849 850 if (DBG) { 851 mInetLog = new ArrayList(); 852 } 853 854 mSettingsObserver = new SettingsObserver(mHandler, EVENT_APPLY_GLOBAL_HTTP_PROXY); 855 mSettingsObserver.observe(mContext); 856 857 mDataConnectionStats = new DataConnectionStats(mContext); 858 mDataConnectionStats.startMonitoring(); 859 860 // start network sampling .. 861 Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED, null); 862 mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, 863 SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); 864 865 mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE); 866 setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); 867 868 IntentFilter filter = new IntentFilter(); 869 filter.addAction(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 870 mContext.registerReceiver( 871 new BroadcastReceiver() { 872 @Override 873 public void onReceive(Context context, Intent intent) { 874 String action = intent.getAction(); 875 if (action.equals(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED)) { 876 mHandler.sendMessage(mHandler.obtainMessage 877 (EVENT_SAMPLE_INTERVAL_ELAPSED)); 878 } 879 } 880 }, 881 new IntentFilter(filter)); 882 883 mPacManager = new PacManager(mContext, mHandler, EVENT_PROXY_HAS_CHANGED); 884 885 filter = new IntentFilter(); 886 filter.addAction(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 887 mContext.registerReceiver(mProvisioningReceiver, filter); 888 889 mAppOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE); 890 891 mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); 892 } 893 894 private synchronized int nextNetworkRequestId() { 895 return mNextNetworkRequestId++; 896 } 897 898 private synchronized int nextNetId() { 899 int netId = mNextNetId; 900 if (++mNextNetId > MAX_NET_ID) mNextNetId = MIN_NET_ID; 901 return netId; 902 } 903 904 /** 905 * Factory that creates {@link NetworkStateTracker} instances using given 906 * {@link NetworkConfig}. 907 * 908 * TODO - this is obsolete and will be deleted. It's replaced by the 909 * registerNetworkFactory call and protocol. 910 * @Deprecated in favor of registerNetworkFactory dynamic bindings 911 */ 912 public interface NetworkFactory { 913 public NetworkStateTracker createTracker(int targetNetworkType, NetworkConfig config); 914 } 915 916 private static class DefaultNetworkFactory implements NetworkFactory { 917 private final Context mContext; 918 private final Handler mTrackerHandler; 919 920 public DefaultNetworkFactory(Context context, Handler trackerHandler) { 921 mContext = context; 922 mTrackerHandler = trackerHandler; 923 } 924 925 @Override 926 public NetworkStateTracker createTracker(int targetNetworkType, NetworkConfig config) { 927 switch (config.radio) { 928 case TYPE_WIMAX: 929 return makeWimaxStateTracker(mContext, mTrackerHandler); 930 case TYPE_PROXY: 931 return new ProxyDataTracker(); 932 default: 933 throw new IllegalArgumentException( 934 "Trying to create a NetworkStateTracker for an unknown radio type: " 935 + config.radio); 936 } 937 } 938 } 939 940 /** 941 * Loads external WiMAX library and registers as system service, returning a 942 * {@link NetworkStateTracker} for WiMAX. Caller is still responsible for 943 * invoking {@link NetworkStateTracker#startMonitoring(Context, Handler)}. 944 */ 945 private static NetworkStateTracker makeWimaxStateTracker( 946 Context context, Handler trackerHandler) { 947 // Initialize Wimax 948 DexClassLoader wimaxClassLoader; 949 Class wimaxStateTrackerClass = null; 950 Class wimaxServiceClass = null; 951 Class wimaxManagerClass; 952 String wimaxJarLocation; 953 String wimaxLibLocation; 954 String wimaxManagerClassName; 955 String wimaxServiceClassName; 956 String wimaxStateTrackerClassName; 957 958 NetworkStateTracker wimaxStateTracker = null; 959 960 boolean isWimaxEnabled = context.getResources().getBoolean( 961 com.android.internal.R.bool.config_wimaxEnabled); 962 963 if (isWimaxEnabled) { 964 try { 965 wimaxJarLocation = context.getResources().getString( 966 com.android.internal.R.string.config_wimaxServiceJarLocation); 967 wimaxLibLocation = context.getResources().getString( 968 com.android.internal.R.string.config_wimaxNativeLibLocation); 969 wimaxManagerClassName = context.getResources().getString( 970 com.android.internal.R.string.config_wimaxManagerClassname); 971 wimaxServiceClassName = context.getResources().getString( 972 com.android.internal.R.string.config_wimaxServiceClassname); 973 wimaxStateTrackerClassName = context.getResources().getString( 974 com.android.internal.R.string.config_wimaxStateTrackerClassname); 975 976 if (DBG) log("wimaxJarLocation: " + wimaxJarLocation); 977 wimaxClassLoader = new DexClassLoader(wimaxJarLocation, 978 new ContextWrapper(context).getCacheDir().getAbsolutePath(), 979 wimaxLibLocation, ClassLoader.getSystemClassLoader()); 980 981 try { 982 wimaxManagerClass = wimaxClassLoader.loadClass(wimaxManagerClassName); 983 wimaxStateTrackerClass = wimaxClassLoader.loadClass(wimaxStateTrackerClassName); 984 wimaxServiceClass = wimaxClassLoader.loadClass(wimaxServiceClassName); 985 } catch (ClassNotFoundException ex) { 986 loge("Exception finding Wimax classes: " + ex.toString()); 987 return null; 988 } 989 } catch(Resources.NotFoundException ex) { 990 loge("Wimax Resources does not exist!!! "); 991 return null; 992 } 993 994 try { 995 if (DBG) log("Starting Wimax Service... "); 996 997 Constructor wmxStTrkrConst = wimaxStateTrackerClass.getConstructor 998 (new Class[] {Context.class, Handler.class}); 999 wimaxStateTracker = (NetworkStateTracker) wmxStTrkrConst.newInstance( 1000 context, trackerHandler); 1001 1002 Constructor wmxSrvConst = wimaxServiceClass.getDeclaredConstructor 1003 (new Class[] {Context.class, wimaxStateTrackerClass}); 1004 wmxSrvConst.setAccessible(true); 1005 IBinder svcInvoker = (IBinder)wmxSrvConst.newInstance(context, wimaxStateTracker); 1006 wmxSrvConst.setAccessible(false); 1007 1008 ServiceManager.addService(WimaxManagerConstants.WIMAX_SERVICE, svcInvoker); 1009 1010 } catch(Exception ex) { 1011 loge("Exception creating Wimax classes: " + ex.toString()); 1012 return null; 1013 } 1014 } else { 1015 loge("Wimax is not enabled or not added to the network attributes!!! "); 1016 return null; 1017 } 1018 1019 return wimaxStateTracker; 1020 } 1021 1022 private int getConnectivityChangeDelay() { 1023 final ContentResolver cr = mContext.getContentResolver(); 1024 1025 /** Check system properties for the default value then use secure settings value, if any. */ 1026 int defaultDelay = SystemProperties.getInt( 1027 "conn." + Settings.Global.CONNECTIVITY_CHANGE_DELAY, 1028 ConnectivityManager.CONNECTIVITY_CHANGE_DELAY_DEFAULT); 1029 return Settings.Global.getInt(cr, Settings.Global.CONNECTIVITY_CHANGE_DELAY, 1030 defaultDelay); 1031 } 1032 1033 private boolean teardown(NetworkStateTracker netTracker) { 1034 if (netTracker.teardown()) { 1035 netTracker.setTeardownRequested(true); 1036 return true; 1037 } else { 1038 return false; 1039 } 1040 } 1041 1042 /** 1043 * Check if UID should be blocked from using the network represented by the 1044 * given {@link NetworkStateTracker}. 1045 */ 1046 private boolean isNetworkBlocked(int networkType, int uid) { 1047 final boolean networkCostly; 1048 final int uidRules; 1049 1050 LinkProperties lp = getLinkPropertiesForType(networkType); 1051 final String iface = (lp == null ? "" : lp.getInterfaceName()); 1052 synchronized (mRulesLock) { 1053 networkCostly = mMeteredIfaces.contains(iface); 1054 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 1055 } 1056 1057 if (networkCostly && (uidRules & RULE_REJECT_METERED) != 0) { 1058 return true; 1059 } 1060 1061 // no restrictive rules; network is visible 1062 return false; 1063 } 1064 1065 /** 1066 * Return a filtered {@link NetworkInfo}, potentially marked 1067 * {@link DetailedState#BLOCKED} based on 1068 * {@link #isNetworkBlocked}. 1069 */ 1070 private NetworkInfo getFilteredNetworkInfo(int networkType, int uid) { 1071 NetworkInfo info = getNetworkInfoForType(networkType); 1072 return getFilteredNetworkInfo(info, networkType, uid); 1073 } 1074 1075 private NetworkInfo getFilteredNetworkInfo(NetworkInfo info, int networkType, int uid) { 1076 if (isNetworkBlocked(networkType, uid)) { 1077 // network is blocked; clone and override state 1078 info = new NetworkInfo(info); 1079 info.setDetailedState(DetailedState.BLOCKED, null, null); 1080 } 1081 if (mLockdownTracker != null) { 1082 info = mLockdownTracker.augmentNetworkInfo(info); 1083 } 1084 return info; 1085 } 1086 1087 /** 1088 * Return NetworkInfo for the active (i.e., connected) network interface. 1089 * It is assumed that at most one network is active at a time. If more 1090 * than one is active, it is indeterminate which will be returned. 1091 * @return the info for the active network, or {@code null} if none is 1092 * active 1093 */ 1094 @Override 1095 public NetworkInfo getActiveNetworkInfo() { 1096 enforceAccessPermission(); 1097 final int uid = Binder.getCallingUid(); 1098 return getNetworkInfo(mActiveDefaultNetwork, uid); 1099 } 1100 1101 // only called when the default request is satisfied 1102 private void updateActiveDefaultNetwork(NetworkAgentInfo nai) { 1103 if (nai != null) { 1104 mActiveDefaultNetwork = nai.networkInfo.getType(); 1105 } else { 1106 mActiveDefaultNetwork = TYPE_NONE; 1107 } 1108 } 1109 1110 /** 1111 * Find the first Provisioning network. 1112 * 1113 * @return NetworkInfo or null if none. 1114 */ 1115 private NetworkInfo getProvisioningNetworkInfo() { 1116 enforceAccessPermission(); 1117 1118 // Find the first Provisioning Network 1119 NetworkInfo provNi = null; 1120 for (NetworkInfo ni : getAllNetworkInfo()) { 1121 if (ni.isConnectedToProvisioningNetwork()) { 1122 provNi = ni; 1123 break; 1124 } 1125 } 1126 if (DBG) log("getProvisioningNetworkInfo: X provNi=" + provNi); 1127 return provNi; 1128 } 1129 1130 /** 1131 * Find the first Provisioning network or the ActiveDefaultNetwork 1132 * if there is no Provisioning network 1133 * 1134 * @return NetworkInfo or null if none. 1135 */ 1136 @Override 1137 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 1138 enforceAccessPermission(); 1139 1140 NetworkInfo provNi = getProvisioningNetworkInfo(); 1141 if (provNi == null) { 1142 final int uid = Binder.getCallingUid(); 1143 provNi = getNetworkInfo(mActiveDefaultNetwork, uid); 1144 } 1145 if (DBG) log("getProvisioningOrActiveNetworkInfo: X provNi=" + provNi); 1146 return provNi; 1147 } 1148 1149 public NetworkInfo getActiveNetworkInfoUnfiltered() { 1150 enforceAccessPermission(); 1151 if (isNetworkTypeValid(mActiveDefaultNetwork)) { 1152 return getNetworkInfoForType(mActiveDefaultNetwork); 1153 } 1154 return null; 1155 } 1156 1157 @Override 1158 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 1159 enforceConnectivityInternalPermission(); 1160 return getNetworkInfo(mActiveDefaultNetwork, uid); 1161 } 1162 1163 @Override 1164 public NetworkInfo getNetworkInfo(int networkType) { 1165 enforceAccessPermission(); 1166 final int uid = Binder.getCallingUid(); 1167 return getNetworkInfo(networkType, uid); 1168 } 1169 1170 private NetworkInfo getNetworkInfo(int networkType, int uid) { 1171 NetworkInfo info = null; 1172 if (isNetworkTypeValid(networkType)) { 1173 if (getNetworkInfoForType(networkType) != null) { 1174 info = getFilteredNetworkInfo(networkType, uid); 1175 } 1176 } 1177 return info; 1178 } 1179 1180 @Override 1181 public NetworkInfo getNetworkInfoForNetwork(Network network) { 1182 enforceAccessPermission(); 1183 if (network == null) return null; 1184 1185 final int uid = Binder.getCallingUid(); 1186 NetworkAgentInfo nai = null; 1187 synchronized (mNetworkForNetId) { 1188 nai = mNetworkForNetId.get(network.netId); 1189 } 1190 if (nai == null) return null; 1191 synchronized (nai) { 1192 if (nai.networkInfo == null) return null; 1193 1194 return getFilteredNetworkInfo(nai.networkInfo, nai.networkInfo.getType(), uid); 1195 } 1196 } 1197 1198 @Override 1199 public NetworkInfo[] getAllNetworkInfo() { 1200 enforceAccessPermission(); 1201 final int uid = Binder.getCallingUid(); 1202 final ArrayList<NetworkInfo> result = Lists.newArrayList(); 1203 synchronized (mRulesLock) { 1204 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1205 networkType++) { 1206 if (getNetworkInfoForType(networkType) != null) { 1207 result.add(getFilteredNetworkInfo(networkType, uid)); 1208 } 1209 } 1210 } 1211 return result.toArray(new NetworkInfo[result.size()]); 1212 } 1213 1214 @Override 1215 public Network[] getAllNetworks() { 1216 enforceAccessPermission(); 1217 final ArrayList<Network> result = new ArrayList(); 1218 synchronized (mNetworkForNetId) { 1219 for (int i = 0; i < mNetworkForNetId.size(); i++) { 1220 result.add(new Network(mNetworkForNetId.valueAt(i).network)); 1221 } 1222 } 1223 return result.toArray(new Network[result.size()]); 1224 } 1225 1226 @Override 1227 public boolean isNetworkSupported(int networkType) { 1228 enforceAccessPermission(); 1229 return (isNetworkTypeValid(networkType) && (getNetworkInfoForType(networkType) != null)); 1230 } 1231 1232 /** 1233 * Return LinkProperties for the active (i.e., connected) default 1234 * network interface. It is assumed that at most one default network 1235 * is active at a time. If more than one is active, it is indeterminate 1236 * which will be returned. 1237 * @return the ip properties for the active network, or {@code null} if 1238 * none is active 1239 */ 1240 @Override 1241 public LinkProperties getActiveLinkProperties() { 1242 return getLinkPropertiesForType(mActiveDefaultNetwork); 1243 } 1244 1245 @Override 1246 public LinkProperties getLinkPropertiesForType(int networkType) { 1247 enforceAccessPermission(); 1248 if (isNetworkTypeValid(networkType)) { 1249 return getLinkPropertiesForTypeInternal(networkType); 1250 } 1251 return null; 1252 } 1253 1254 // TODO - this should be ALL networks 1255 @Override 1256 public LinkProperties getLinkProperties(Network network) { 1257 enforceAccessPermission(); 1258 NetworkAgentInfo nai = null; 1259 synchronized (mNetworkForNetId) { 1260 nai = mNetworkForNetId.get(network.netId); 1261 } 1262 1263 if (nai != null) { 1264 synchronized (nai) { 1265 return new LinkProperties(nai.linkProperties); 1266 } 1267 } 1268 return null; 1269 } 1270 1271 @Override 1272 public NetworkCapabilities getNetworkCapabilities(Network network) { 1273 enforceAccessPermission(); 1274 NetworkAgentInfo nai = null; 1275 synchronized (mNetworkForNetId) { 1276 nai = mNetworkForNetId.get(network.netId); 1277 } 1278 if (nai != null) { 1279 synchronized (nai) { 1280 return new NetworkCapabilities(nai.networkCapabilities); 1281 } 1282 } 1283 return null; 1284 } 1285 1286 @Override 1287 public NetworkState[] getAllNetworkState() { 1288 enforceAccessPermission(); 1289 final int uid = Binder.getCallingUid(); 1290 final ArrayList<NetworkState> result = Lists.newArrayList(); 1291 synchronized (mRulesLock) { 1292 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1293 networkType++) { 1294 if (getNetworkInfoForType(networkType) != null) { 1295 final NetworkInfo info = getFilteredNetworkInfo(networkType, uid); 1296 final LinkProperties lp = getLinkPropertiesForTypeInternal(networkType); 1297 final NetworkCapabilities netcap = getNetworkCapabilitiesForType(networkType); 1298 result.add(new NetworkState(info, lp, netcap)); 1299 } 1300 } 1301 } 1302 return result.toArray(new NetworkState[result.size()]); 1303 } 1304 1305 private NetworkState getNetworkStateUnchecked(int networkType) { 1306 if (isNetworkTypeValid(networkType)) { 1307 NetworkInfo info = getNetworkInfoForType(networkType); 1308 if (info != null) { 1309 return new NetworkState(info, 1310 getLinkPropertiesForTypeInternal(networkType), 1311 getNetworkCapabilitiesForType(networkType)); 1312 } 1313 } 1314 return null; 1315 } 1316 1317 @Override 1318 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1319 enforceAccessPermission(); 1320 1321 final long token = Binder.clearCallingIdentity(); 1322 try { 1323 final NetworkState state = getNetworkStateUnchecked(mActiveDefaultNetwork); 1324 if (state != null) { 1325 try { 1326 return mPolicyManager.getNetworkQuotaInfo(state); 1327 } catch (RemoteException e) { 1328 } 1329 } 1330 return null; 1331 } finally { 1332 Binder.restoreCallingIdentity(token); 1333 } 1334 } 1335 1336 @Override 1337 public boolean isActiveNetworkMetered() { 1338 enforceAccessPermission(); 1339 final long token = Binder.clearCallingIdentity(); 1340 try { 1341 return isNetworkMeteredUnchecked(mActiveDefaultNetwork); 1342 } finally { 1343 Binder.restoreCallingIdentity(token); 1344 } 1345 } 1346 1347 private boolean isNetworkMeteredUnchecked(int networkType) { 1348 final NetworkState state = getNetworkStateUnchecked(networkType); 1349 if (state != null) { 1350 try { 1351 return mPolicyManager.isNetworkMetered(state); 1352 } catch (RemoteException e) { 1353 } 1354 } 1355 return false; 1356 } 1357 1358 private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { 1359 @Override 1360 public void interfaceClassDataActivityChanged(String label, boolean active, long tsNanos) { 1361 int deviceType = Integer.parseInt(label); 1362 sendDataActivityBroadcast(deviceType, active, tsNanos); 1363 } 1364 }; 1365 1366 /** 1367 * Used to notice when the calling process dies so we can self-expire 1368 * 1369 * Also used to know if the process has cleaned up after itself when 1370 * our auto-expire timer goes off. The timer has a link to an object. 1371 * 1372 */ 1373 private class FeatureUser implements IBinder.DeathRecipient { 1374 int mNetworkType; 1375 String mFeature; 1376 IBinder mBinder; 1377 int mPid; 1378 int mUid; 1379 long mCreateTime; 1380 1381 FeatureUser(int type, String feature, IBinder binder) { 1382 super(); 1383 mNetworkType = type; 1384 mFeature = feature; 1385 mBinder = binder; 1386 mPid = getCallingPid(); 1387 mUid = getCallingUid(); 1388 mCreateTime = System.currentTimeMillis(); 1389 1390 try { 1391 mBinder.linkToDeath(this, 0); 1392 } catch (RemoteException e) { 1393 binderDied(); 1394 } 1395 } 1396 1397 void unlinkDeathRecipient() { 1398 mBinder.unlinkToDeath(this, 0); 1399 } 1400 1401 public void binderDied() { 1402 log("ConnectivityService FeatureUser binderDied(" + 1403 mNetworkType + ", " + mFeature + ", " + mBinder + "), created " + 1404 (System.currentTimeMillis() - mCreateTime) + " mSec ago"); 1405 stopUsingNetworkFeature(this, false); 1406 } 1407 1408 public void expire() { 1409 if (VDBG) { 1410 log("ConnectivityService FeatureUser expire(" + 1411 mNetworkType + ", " + mFeature + ", " + mBinder +"), created " + 1412 (System.currentTimeMillis() - mCreateTime) + " mSec ago"); 1413 } 1414 stopUsingNetworkFeature(this, false); 1415 } 1416 1417 public boolean isSameUser(FeatureUser u) { 1418 if (u == null) return false; 1419 1420 return isSameUser(u.mPid, u.mUid, u.mNetworkType, u.mFeature); 1421 } 1422 1423 public boolean isSameUser(int pid, int uid, int networkType, String feature) { 1424 if ((mPid == pid) && (mUid == uid) && (mNetworkType == networkType) && 1425 TextUtils.equals(mFeature, feature)) { 1426 return true; 1427 } 1428 return false; 1429 } 1430 1431 public String toString() { 1432 return "FeatureUser("+mNetworkType+","+mFeature+","+mPid+","+mUid+"), created " + 1433 (System.currentTimeMillis() - mCreateTime) + " mSec ago"; 1434 } 1435 } 1436 1437 // javadoc from interface 1438 public int startUsingNetworkFeature(int networkType, String feature, 1439 IBinder binder) { 1440 long startTime = 0; 1441 if (DBG) { 1442 startTime = SystemClock.elapsedRealtime(); 1443 } 1444 if (VDBG) { 1445 log("startUsingNetworkFeature for net " + networkType + ": " + feature + ", uid=" 1446 + Binder.getCallingUid()); 1447 } 1448 enforceChangePermission(); 1449 try { 1450 if (!ConnectivityManager.isNetworkTypeValid(networkType) || 1451 mNetConfigs[networkType] == null) { 1452 return PhoneConstants.APN_REQUEST_FAILED; 1453 } 1454 1455 FeatureUser f = new FeatureUser(networkType, feature, binder); 1456 1457 // TODO - move this into individual networktrackers 1458 int usedNetworkType = convertFeatureToNetworkType(networkType, feature); 1459 1460 if (mLockdownEnabled) { 1461 // Since carrier APNs usually aren't available from VPN 1462 // endpoint, mark them as unavailable. 1463 return PhoneConstants.APN_TYPE_NOT_AVAILABLE; 1464 } 1465 1466 if (mProtectedNetworks.contains(usedNetworkType)) { 1467 enforceConnectivityInternalPermission(); 1468 } 1469 1470 // if UID is restricted, don't allow them to bring up metered APNs 1471 final boolean networkMetered = isNetworkMeteredUnchecked(usedNetworkType); 1472 final int uidRules; 1473 synchronized (mRulesLock) { 1474 uidRules = mUidRules.get(Binder.getCallingUid(), RULE_ALLOW_ALL); 1475 } 1476 if (networkMetered && (uidRules & RULE_REJECT_METERED) != 0) { 1477 return PhoneConstants.APN_REQUEST_FAILED; 1478 } 1479 1480 NetworkStateTracker network = mNetTrackers[usedNetworkType]; 1481 if (network != null) { 1482 Integer currentPid = new Integer(getCallingPid()); 1483 if (usedNetworkType != networkType) { 1484 NetworkInfo ni = network.getNetworkInfo(); 1485 1486 if (ni.isAvailable() == false) { 1487 if (!TextUtils.equals(feature,Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 1488 if (DBG) log("special network not available ni=" + ni.getTypeName()); 1489 return PhoneConstants.APN_TYPE_NOT_AVAILABLE; 1490 } else { 1491 // else make the attempt anyway - probably giving REQUEST_STARTED below 1492 if (DBG) { 1493 log("special network not available, but try anyway ni=" + 1494 ni.getTypeName()); 1495 } 1496 } 1497 } 1498 1499 int restoreTimer = getRestoreDefaultNetworkDelay(usedNetworkType); 1500 1501 synchronized(this) { 1502 boolean addToList = true; 1503 if (restoreTimer < 0) { 1504 // In case there is no timer is specified for the feature, 1505 // make sure we don't add duplicate entry with the same request. 1506 for (FeatureUser u : mFeatureUsers) { 1507 if (u.isSameUser(f)) { 1508 // Duplicate user is found. Do not add. 1509 addToList = false; 1510 break; 1511 } 1512 } 1513 } 1514 1515 if (addToList) mFeatureUsers.add(f); 1516 if (!mNetRequestersPids[usedNetworkType].contains(currentPid)) { 1517 // this gets used for per-pid dns when connected 1518 mNetRequestersPids[usedNetworkType].add(currentPid); 1519 } 1520 } 1521 1522 if (restoreTimer >= 0) { 1523 mHandler.sendMessageDelayed(mHandler.obtainMessage( 1524 EVENT_RESTORE_DEFAULT_NETWORK, f), restoreTimer); 1525 } 1526 1527 if ((ni.isConnectedOrConnecting() == true) && 1528 !network.isTeardownRequested()) { 1529 if (ni.isConnected() == true) { 1530 final long token = Binder.clearCallingIdentity(); 1531 try { 1532 // add the pid-specific dns 1533 handleDnsConfigurationChange(usedNetworkType); 1534 if (VDBG) log("special network already active"); 1535 } finally { 1536 Binder.restoreCallingIdentity(token); 1537 } 1538 return PhoneConstants.APN_ALREADY_ACTIVE; 1539 } 1540 if (VDBG) log("special network already connecting"); 1541 return PhoneConstants.APN_REQUEST_STARTED; 1542 } 1543 1544 // check if the radio in play can make another contact 1545 // assume if cannot for now 1546 1547 if (DBG) { 1548 log("startUsingNetworkFeature reconnecting to " + networkType + ": " + 1549 feature); 1550 } 1551 if (network.reconnect()) { 1552 if (DBG) log("startUsingNetworkFeature X: return APN_REQUEST_STARTED"); 1553 return PhoneConstants.APN_REQUEST_STARTED; 1554 } else { 1555 if (DBG) log("startUsingNetworkFeature X: return APN_REQUEST_FAILED"); 1556 return PhoneConstants.APN_REQUEST_FAILED; 1557 } 1558 } else { 1559 // need to remember this unsupported request so we respond appropriately on stop 1560 synchronized(this) { 1561 mFeatureUsers.add(f); 1562 if (!mNetRequestersPids[usedNetworkType].contains(currentPid)) { 1563 // this gets used for per-pid dns when connected 1564 mNetRequestersPids[usedNetworkType].add(currentPid); 1565 } 1566 } 1567 if (DBG) log("startUsingNetworkFeature X: return -1 unsupported feature."); 1568 return -1; 1569 } 1570 } 1571 if (DBG) log("startUsingNetworkFeature X: return APN_TYPE_NOT_AVAILABLE"); 1572 return PhoneConstants.APN_TYPE_NOT_AVAILABLE; 1573 } finally { 1574 if (DBG) { 1575 final long execTime = SystemClock.elapsedRealtime() - startTime; 1576 if (execTime > 250) { 1577 loge("startUsingNetworkFeature took too long: " + execTime + "ms"); 1578 } else { 1579 if (VDBG) log("startUsingNetworkFeature took " + execTime + "ms"); 1580 } 1581 } 1582 } 1583 } 1584 1585 // javadoc from interface 1586 public int stopUsingNetworkFeature(int networkType, String feature) { 1587 enforceChangePermission(); 1588 1589 int pid = getCallingPid(); 1590 int uid = getCallingUid(); 1591 1592 FeatureUser u = null; 1593 boolean found = false; 1594 1595 synchronized(this) { 1596 for (FeatureUser x : mFeatureUsers) { 1597 if (x.isSameUser(pid, uid, networkType, feature)) { 1598 u = x; 1599 found = true; 1600 break; 1601 } 1602 } 1603 } 1604 if (found && u != null) { 1605 if (VDBG) log("stopUsingNetworkFeature: X"); 1606 // stop regardless of how many other time this proc had called start 1607 return stopUsingNetworkFeature(u, true); 1608 } else { 1609 // none found! 1610 if (VDBG) log("stopUsingNetworkFeature: X not a live request, ignoring"); 1611 return 1; 1612 } 1613 } 1614 1615 private int stopUsingNetworkFeature(FeatureUser u, boolean ignoreDups) { 1616 int networkType = u.mNetworkType; 1617 String feature = u.mFeature; 1618 int pid = u.mPid; 1619 int uid = u.mUid; 1620 1621 NetworkStateTracker tracker = null; 1622 boolean callTeardown = false; // used to carry our decision outside of sync block 1623 1624 if (VDBG) { 1625 log("stopUsingNetworkFeature: net " + networkType + ": " + feature); 1626 } 1627 1628 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1629 if (DBG) { 1630 log("stopUsingNetworkFeature: net " + networkType + ": " + feature + 1631 ", net is invalid"); 1632 } 1633 return -1; 1634 } 1635 1636 // need to link the mFeatureUsers list with the mNetRequestersPids state in this 1637 // sync block 1638 synchronized(this) { 1639 // check if this process still has an outstanding start request 1640 if (!mFeatureUsers.contains(u)) { 1641 if (VDBG) { 1642 log("stopUsingNetworkFeature: this process has no outstanding requests" + 1643 ", ignoring"); 1644 } 1645 return 1; 1646 } 1647 u.unlinkDeathRecipient(); 1648 mFeatureUsers.remove(mFeatureUsers.indexOf(u)); 1649 // If we care about duplicate requests, check for that here. 1650 // 1651 // This is done to support the extension of a request - the app 1652 // can request we start the network feature again and renew the 1653 // auto-shutoff delay. Normal "stop" calls from the app though 1654 // do not pay attention to duplicate requests - in effect the 1655 // API does not refcount and a single stop will counter multiple starts. 1656 if (ignoreDups == false) { 1657 for (FeatureUser x : mFeatureUsers) { 1658 if (x.isSameUser(u)) { 1659 if (VDBG) log("stopUsingNetworkFeature: dup is found, ignoring"); 1660 return 1; 1661 } 1662 } 1663 } 1664 1665 // TODO - move to individual network trackers 1666 int usedNetworkType = convertFeatureToNetworkType(networkType, feature); 1667 1668 tracker = mNetTrackers[usedNetworkType]; 1669 if (tracker == null) { 1670 if (DBG) { 1671 log("stopUsingNetworkFeature: net " + networkType + ": " + feature + 1672 " no known tracker for used net type " + usedNetworkType); 1673 } 1674 return -1; 1675 } 1676 if (usedNetworkType != networkType) { 1677 Integer currentPid = new Integer(pid); 1678 mNetRequestersPids[usedNetworkType].remove(currentPid); 1679 1680 final long token = Binder.clearCallingIdentity(); 1681 try { 1682 reassessPidDns(pid, true); 1683 } finally { 1684 Binder.restoreCallingIdentity(token); 1685 } 1686 flushVmDnsCache(); 1687 if (mNetRequestersPids[usedNetworkType].size() != 0) { 1688 if (VDBG) { 1689 log("stopUsingNetworkFeature: net " + networkType + ": " + feature + 1690 " others still using it"); 1691 } 1692 return 1; 1693 } 1694 callTeardown = true; 1695 } else { 1696 if (DBG) { 1697 log("stopUsingNetworkFeature: net " + networkType + ": " + feature + 1698 " not a known feature - dropping"); 1699 } 1700 } 1701 } 1702 1703 if (callTeardown) { 1704 if (DBG) { 1705 log("stopUsingNetworkFeature: teardown net " + networkType + ": " + feature); 1706 } 1707 tracker.teardown(); 1708 return 1; 1709 } else { 1710 return -1; 1711 } 1712 } 1713 1714 /** 1715 * Check if the address falls into any of currently running VPN's route's. 1716 */ 1717 private boolean isAddressUnderVpn(InetAddress address) { 1718 synchronized (mVpns) { 1719 synchronized (mRoutesLock) { 1720 int uid = UserHandle.getCallingUserId(); 1721 Vpn vpn = mVpns.get(uid); 1722 if (vpn == null) { 1723 return false; 1724 } 1725 1726 // Check if an exemption exists for this address. 1727 for (LinkAddress destination : mExemptAddresses) { 1728 if (!NetworkUtils.addressTypeMatches(address, destination.getAddress())) { 1729 continue; 1730 } 1731 1732 int prefix = destination.getPrefixLength(); 1733 InetAddress addrMasked = NetworkUtils.getNetworkPart(address, prefix); 1734 InetAddress destMasked = NetworkUtils.getNetworkPart(destination.getAddress(), 1735 prefix); 1736 1737 if (addrMasked.equals(destMasked)) { 1738 return false; 1739 } 1740 } 1741 1742 // Finally check if the address is covered by the VPN. 1743 return vpn.isAddressCovered(address); 1744 } 1745 } 1746 } 1747 1748 /** 1749 * @deprecated use requestRouteToHostAddress instead 1750 * 1751 * Ensure that a network route exists to deliver traffic to the specified 1752 * host via the specified network interface. 1753 * @param networkType the type of the network over which traffic to the 1754 * specified host is to be routed 1755 * @param hostAddress the IP address of the host to which the route is 1756 * desired 1757 * @return {@code true} on success, {@code false} on failure 1758 */ 1759 public boolean requestRouteToHost(int networkType, int hostAddress, String packageName) { 1760 InetAddress inetAddress = NetworkUtils.intToInetAddress(hostAddress); 1761 1762 if (inetAddress == null) { 1763 return false; 1764 } 1765 1766 return requestRouteToHostAddress(networkType, inetAddress.getAddress(), packageName); 1767 } 1768 1769 /** 1770 * Ensure that a network route exists to deliver traffic to the specified 1771 * host via the specified network interface. 1772 * @param networkType the type of the network over which traffic to the 1773 * specified host is to be routed 1774 * @param hostAddress the IP address of the host to which the route is 1775 * desired 1776 * @return {@code true} on success, {@code false} on failure 1777 */ 1778 public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress, 1779 String packageName) { 1780 enforceChangePermission(); 1781 if (mProtectedNetworks.contains(networkType)) { 1782 enforceConnectivityInternalPermission(); 1783 } 1784 boolean exempt; 1785 InetAddress addr; 1786 try { 1787 addr = InetAddress.getByAddress(hostAddress); 1788 } catch (UnknownHostException e) { 1789 if (DBG) log("requestRouteToHostAddress got " + e.toString()); 1790 return false; 1791 } 1792 // System apps may request routes bypassing the VPN to keep other networks working. 1793 if (Binder.getCallingUid() == Process.SYSTEM_UID) { 1794 exempt = true; 1795 } else { 1796 mAppOpsManager.checkPackage(Binder.getCallingUid(), packageName); 1797 try { 1798 ApplicationInfo info = mContext.getPackageManager().getApplicationInfo(packageName, 1799 0); 1800 exempt = (info.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 1801 } catch (NameNotFoundException e) { 1802 throw new IllegalArgumentException("Failed to find calling package details", e); 1803 } 1804 } 1805 1806 // Non-exempt routeToHost's can only be added if the host is not covered by the VPN. 1807 // This can be either because the VPN's routes do not cover the destination or a 1808 // system application added an exemption that covers this destination. 1809 if (!exempt && isAddressUnderVpn(addr)) { 1810 return false; 1811 } 1812 1813 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1814 if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); 1815 return false; 1816 } 1817 1818 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1819 if (nai == null) { 1820 if (mLegacyTypeTracker.isTypeSupported(networkType) == false) { 1821 if (DBG) log("requestRouteToHostAddress on unsupported network: " + networkType); 1822 } else { 1823 if (DBG) log("requestRouteToHostAddress on down network: " + networkType); 1824 } 1825 return false; 1826 } 1827 DetailedState netState; 1828 synchronized (nai) { 1829 netState = nai.networkInfo.getDetailedState(); 1830 } 1831 1832 if ((netState != DetailedState.CONNECTED && 1833 netState != DetailedState.CAPTIVE_PORTAL_CHECK)) { 1834 if (VDBG) { 1835 log("requestRouteToHostAddress on down network " 1836 + "(" + networkType + ") - dropped" 1837 + " netState=" + netState); 1838 } 1839 return false; 1840 } 1841 final int uid = Binder.getCallingUid(); 1842 final long token = Binder.clearCallingIdentity(); 1843 try { 1844 LinkProperties lp = null; 1845 int netId = INVALID_NET_ID; 1846 synchronized (nai) { 1847 lp = nai.linkProperties; 1848 netId = nai.network.netId; 1849 } 1850 boolean ok = modifyRouteToAddress(lp, addr, ADD, TO_DEFAULT_TABLE, exempt, netId, uid); 1851 if (DBG) log("requestRouteToHostAddress ok=" + ok); 1852 return ok; 1853 } finally { 1854 Binder.restoreCallingIdentity(token); 1855 } 1856 } 1857 1858 private boolean addRoute(LinkProperties p, RouteInfo r, boolean toDefaultTable, 1859 boolean exempt, int netId) { 1860 return modifyRoute(p, r, 0, ADD, toDefaultTable, exempt, netId, false, UID_UNUSED); 1861 } 1862 1863 private boolean removeRoute(LinkProperties p, RouteInfo r, boolean toDefaultTable, int netId) { 1864 return modifyRoute(p, r, 0, REMOVE, toDefaultTable, UNEXEMPT, netId, false, UID_UNUSED); 1865 } 1866 1867 private boolean modifyRouteToAddress(LinkProperties lp, InetAddress addr, boolean doAdd, 1868 boolean toDefaultTable, boolean exempt, int netId, int uid) { 1869 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), addr); 1870 if (bestRoute == null) { 1871 bestRoute = RouteInfo.makeHostRoute(addr, lp.getInterfaceName()); 1872 } else { 1873 String iface = bestRoute.getInterface(); 1874 if (bestRoute.getGateway().equals(addr)) { 1875 // if there is no better route, add the implied hostroute for our gateway 1876 bestRoute = RouteInfo.makeHostRoute(addr, iface); 1877 } else { 1878 // if we will connect to this through another route, add a direct route 1879 // to it's gateway 1880 bestRoute = RouteInfo.makeHostRoute(addr, bestRoute.getGateway(), iface); 1881 } 1882 } 1883 return modifyRoute(lp, bestRoute, 0, doAdd, toDefaultTable, exempt, netId, true, uid); 1884 } 1885 1886 /* 1887 * TODO: Clean all this stuff up. Once we have UID-based routing, stuff will break due to 1888 * incorrect tracking of mAddedRoutes, so a cleanup becomes necessary and urgent. But at 1889 * the same time, there'll be no more need to track mAddedRoutes or mExemptAddresses, 1890 * or even have the concept of an exempt address, or do things like "selectBestRoute", or 1891 * determine "default" vs "secondary" table, etc., so the cleanup becomes possible. 1892 */ 1893 private boolean modifyRoute(LinkProperties lp, RouteInfo r, int cycleCount, boolean doAdd, 1894 boolean toDefaultTable, boolean exempt, int netId, boolean legacy, int uid) { 1895 if ((lp == null) || (r == null)) { 1896 if (DBG) log("modifyRoute got unexpected null: " + lp + ", " + r); 1897 return false; 1898 } 1899 1900 if (cycleCount > MAX_HOSTROUTE_CYCLE_COUNT) { 1901 loge("Error modifying route - too much recursion"); 1902 return false; 1903 } 1904 1905 String ifaceName = r.getInterface(); 1906 if(ifaceName == null) { 1907 loge("Error modifying route - no interface name"); 1908 return false; 1909 } 1910 if (r.hasGateway()) { 1911 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), r.getGateway()); 1912 if (bestRoute != null) { 1913 if (bestRoute.getGateway().equals(r.getGateway())) { 1914 // if there is no better route, add the implied hostroute for our gateway 1915 bestRoute = RouteInfo.makeHostRoute(r.getGateway(), ifaceName); 1916 } else { 1917 // if we will connect to our gateway through another route, add a direct 1918 // route to it's gateway 1919 bestRoute = RouteInfo.makeHostRoute(r.getGateway(), 1920 bestRoute.getGateway(), 1921 ifaceName); 1922 } 1923 modifyRoute(lp, bestRoute, cycleCount+1, doAdd, toDefaultTable, exempt, netId, 1924 legacy, uid); 1925 } 1926 } 1927 if (doAdd) { 1928 if (VDBG) log("Adding " + r + " for interface " + ifaceName); 1929 try { 1930 if (toDefaultTable) { 1931 synchronized (mRoutesLock) { 1932 // only track default table - only one apps can effect 1933 mAddedRoutes.add(r); 1934 if (legacy) { 1935 mNetd.addLegacyRouteForNetId(netId, r, uid); 1936 } else { 1937 mNetd.addRoute(netId, r); 1938 } 1939 if (exempt) { 1940 LinkAddress dest = r.getDestinationLinkAddress(); 1941 if (!mExemptAddresses.contains(dest)) { 1942 mNetd.setHostExemption(dest); 1943 mExemptAddresses.add(dest); 1944 } 1945 } 1946 } 1947 } else { 1948 if (legacy) { 1949 mNetd.addLegacyRouteForNetId(netId, r, uid); 1950 } else { 1951 mNetd.addRoute(netId, r); 1952 } 1953 } 1954 } catch (Exception e) { 1955 // never crash - catch them all 1956 if (DBG) loge("Exception trying to add a route: " + e); 1957 return false; 1958 } 1959 } else { 1960 // if we remove this one and there are no more like it, then refcount==0 and 1961 // we can remove it from the table 1962 if (toDefaultTable) { 1963 synchronized (mRoutesLock) { 1964 mAddedRoutes.remove(r); 1965 if (mAddedRoutes.contains(r) == false) { 1966 if (VDBG) log("Removing " + r + " for interface " + ifaceName); 1967 try { 1968 if (legacy) { 1969 mNetd.removeLegacyRouteForNetId(netId, r, uid); 1970 } else { 1971 mNetd.removeRoute(netId, r); 1972 } 1973 LinkAddress dest = r.getDestinationLinkAddress(); 1974 if (mExemptAddresses.contains(dest)) { 1975 mNetd.clearHostExemption(dest); 1976 mExemptAddresses.remove(dest); 1977 } 1978 } catch (Exception e) { 1979 // never crash - catch them all 1980 if (VDBG) loge("Exception trying to remove a route: " + e); 1981 return false; 1982 } 1983 } else { 1984 if (VDBG) log("not removing " + r + " as it's still in use"); 1985 } 1986 } 1987 } else { 1988 if (VDBG) log("Removing " + r + " for interface " + ifaceName); 1989 try { 1990 if (legacy) { 1991 mNetd.removeLegacyRouteForNetId(netId, r, uid); 1992 } else { 1993 mNetd.removeRoute(netId, r); 1994 } 1995 } catch (Exception e) { 1996 // never crash - catch them all 1997 if (VDBG) loge("Exception trying to remove a route: " + e); 1998 return false; 1999 } 2000 } 2001 } 2002 return true; 2003 } 2004 2005 public void setDataDependency(int networkType, boolean met) { 2006 enforceConnectivityInternalPermission(); 2007 2008 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_DEPENDENCY_MET, 2009 (met ? ENABLED : DISABLED), networkType)); 2010 } 2011 2012 private void handleSetDependencyMet(int networkType, boolean met) { 2013 if (mNetTrackers[networkType] != null) { 2014 if (DBG) { 2015 log("handleSetDependencyMet(" + networkType + ", " + met + ")"); 2016 } 2017 mNetTrackers[networkType].setDependencyMet(met); 2018 } 2019 } 2020 2021 private INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() { 2022 @Override 2023 public void onUidRulesChanged(int uid, int uidRules) { 2024 // caller is NPMS, since we only register with them 2025 if (LOGD_RULES) { 2026 log("onUidRulesChanged(uid=" + uid + ", uidRules=" + uidRules + ")"); 2027 } 2028 2029 synchronized (mRulesLock) { 2030 // skip update when we've already applied rules 2031 final int oldRules = mUidRules.get(uid, RULE_ALLOW_ALL); 2032 if (oldRules == uidRules) return; 2033 2034 mUidRules.put(uid, uidRules); 2035 } 2036 2037 // TODO: notify UID when it has requested targeted updates 2038 } 2039 2040 @Override 2041 public void onMeteredIfacesChanged(String[] meteredIfaces) { 2042 // caller is NPMS, since we only register with them 2043 if (LOGD_RULES) { 2044 log("onMeteredIfacesChanged(ifaces=" + Arrays.toString(meteredIfaces) + ")"); 2045 } 2046 2047 synchronized (mRulesLock) { 2048 mMeteredIfaces.clear(); 2049 for (String iface : meteredIfaces) { 2050 mMeteredIfaces.add(iface); 2051 } 2052 } 2053 } 2054 2055 @Override 2056 public void onRestrictBackgroundChanged(boolean restrictBackground) { 2057 // caller is NPMS, since we only register with them 2058 if (LOGD_RULES) { 2059 log("onRestrictBackgroundChanged(restrictBackground=" + restrictBackground + ")"); 2060 } 2061 2062 // kick off connectivity change broadcast for active network, since 2063 // global background policy change is radical. 2064 final int networkType = mActiveDefaultNetwork; 2065 if (isNetworkTypeValid(networkType)) { 2066 final NetworkStateTracker tracker = mNetTrackers[networkType]; 2067 if (tracker != null) { 2068 final NetworkInfo info = tracker.getNetworkInfo(); 2069 if (info != null && info.isConnected()) { 2070 sendConnectedBroadcast(info); 2071 } 2072 } 2073 } 2074 } 2075 }; 2076 2077 @Override 2078 public void setPolicyDataEnable(int networkType, boolean enabled) { 2079 // only someone like NPMS should only be calling us 2080 mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); 2081 2082 mHandler.sendMessage(mHandler.obtainMessage( 2083 EVENT_SET_POLICY_DATA_ENABLE, networkType, (enabled ? ENABLED : DISABLED))); 2084 } 2085 2086 private void handleSetPolicyDataEnable(int networkType, boolean enabled) { 2087 // TODO - handle this passing to factories 2088// if (isNetworkTypeValid(networkType)) { 2089// final NetworkStateTracker tracker = mNetTrackers[networkType]; 2090// if (tracker != null) { 2091// tracker.setPolicyDataEnable(enabled); 2092// } 2093// } 2094 } 2095 2096 private void enforceAccessPermission() { 2097 mContext.enforceCallingOrSelfPermission( 2098 android.Manifest.permission.ACCESS_NETWORK_STATE, 2099 "ConnectivityService"); 2100 } 2101 2102 private void enforceChangePermission() { 2103 mContext.enforceCallingOrSelfPermission( 2104 android.Manifest.permission.CHANGE_NETWORK_STATE, 2105 "ConnectivityService"); 2106 } 2107 2108 // TODO Make this a special check when it goes public 2109 private void enforceTetherChangePermission() { 2110 mContext.enforceCallingOrSelfPermission( 2111 android.Manifest.permission.CHANGE_NETWORK_STATE, 2112 "ConnectivityService"); 2113 } 2114 2115 private void enforceTetherAccessPermission() { 2116 mContext.enforceCallingOrSelfPermission( 2117 android.Manifest.permission.ACCESS_NETWORK_STATE, 2118 "ConnectivityService"); 2119 } 2120 2121 private void enforceConnectivityInternalPermission() { 2122 mContext.enforceCallingOrSelfPermission( 2123 android.Manifest.permission.CONNECTIVITY_INTERNAL, 2124 "ConnectivityService"); 2125 } 2126 2127 private void enforceMarkNetworkSocketPermission() { 2128 //Media server special case 2129 if (Binder.getCallingUid() == Process.MEDIA_UID) { 2130 return; 2131 } 2132 mContext.enforceCallingOrSelfPermission( 2133 android.Manifest.permission.MARK_NETWORK_SOCKET, 2134 "ConnectivityService"); 2135 } 2136 2137 /** 2138 * Handle a {@code DISCONNECTED} event. If this pertains to the non-active 2139 * network, we ignore it. If it is for the active network, we send out a 2140 * broadcast. But first, we check whether it might be possible to connect 2141 * to a different network. 2142 * @param info the {@code NetworkInfo} for the network 2143 */ 2144 private void handleDisconnect(NetworkInfo info) { 2145 2146 int prevNetType = info.getType(); 2147 2148 mNetTrackers[prevNetType].setTeardownRequested(false); 2149 int thisNetId = mNetTrackers[prevNetType].getNetwork().netId; 2150 2151 // Remove idletimer previously setup in {@code handleConnect} 2152// Already in place in new function. This is dead code. 2153// if (mNetConfigs[prevNetType].isDefault()) { 2154// removeDataActivityTracking(prevNetType); 2155// } 2156 2157 /* 2158 * If the disconnected network is not the active one, then don't report 2159 * this as a loss of connectivity. What probably happened is that we're 2160 * getting the disconnect for a network that we explicitly disabled 2161 * in accordance with network preference policies. 2162 */ 2163 if (!mNetConfigs[prevNetType].isDefault()) { 2164 List<Integer> pids = mNetRequestersPids[prevNetType]; 2165 for (Integer pid : pids) { 2166 // will remove them because the net's no longer connected 2167 // need to do this now as only now do we know the pids and 2168 // can properly null things that are no longer referenced. 2169 reassessPidDns(pid.intValue(), false); 2170 } 2171 } 2172 2173 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 2174 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 2175 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 2176 if (info.isFailover()) { 2177 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 2178 info.setFailover(false); 2179 } 2180 if (info.getReason() != null) { 2181 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 2182 } 2183 if (info.getExtraInfo() != null) { 2184 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 2185 info.getExtraInfo()); 2186 } 2187 2188 if (mNetConfigs[prevNetType].isDefault()) { 2189 tryFailover(prevNetType); 2190 if (mActiveDefaultNetwork != -1) { 2191 NetworkInfo switchTo = mNetTrackers[mActiveDefaultNetwork].getNetworkInfo(); 2192 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, switchTo); 2193 } else { 2194 mDefaultInetConditionPublished = 0; // we're not connected anymore 2195 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 2196 } 2197 } 2198 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 2199 2200 // Reset interface if no other connections are using the same interface 2201 boolean doReset = true; 2202 LinkProperties linkProperties = mNetTrackers[prevNetType].getLinkProperties(); 2203 if (linkProperties != null) { 2204 String oldIface = linkProperties.getInterfaceName(); 2205 if (TextUtils.isEmpty(oldIface) == false) { 2206 for (NetworkStateTracker networkStateTracker : mNetTrackers) { 2207 if (networkStateTracker == null) continue; 2208 NetworkInfo networkInfo = networkStateTracker.getNetworkInfo(); 2209 if (networkInfo.isConnected() && networkInfo.getType() != prevNetType) { 2210 LinkProperties l = networkStateTracker.getLinkProperties(); 2211 if (l == null) continue; 2212 if (oldIface.equals(l.getInterfaceName())) { 2213 doReset = false; 2214 break; 2215 } 2216 } 2217 } 2218 } 2219 } 2220 2221 // do this before we broadcast the change 2222// Already done in new function. This is dead code. 2223// handleConnectivityChange(prevNetType, doReset); 2224 2225 final Intent immediateIntent = new Intent(intent); 2226 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 2227 sendStickyBroadcast(immediateIntent); 2228 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 2229 /* 2230 * If the failover network is already connected, then immediately send 2231 * out a followup broadcast indicating successful failover 2232 */ 2233 if (mActiveDefaultNetwork != -1) { 2234 sendConnectedBroadcastDelayed(mNetTrackers[mActiveDefaultNetwork].getNetworkInfo(), 2235 getConnectivityChangeDelay()); 2236 } 2237 try { 2238// mNetd.removeNetwork(thisNetId); 2239 } catch (Exception e) { 2240 loge("Exception removing network: " + e); 2241 } finally { 2242 mNetTrackers[prevNetType].setNetId(INVALID_NET_ID); 2243 } 2244 } 2245 2246 private void tryFailover(int prevNetType) { 2247 /* 2248 * If this is a default network, check if other defaults are available. 2249 * Try to reconnect on all available and let them hash it out when 2250 * more than one connects. 2251 */ 2252 if (mNetConfigs[prevNetType].isDefault()) { 2253 if (mActiveDefaultNetwork == prevNetType) { 2254 if (DBG) { 2255 log("tryFailover: set mActiveDefaultNetwork=-1, prevNetType=" + prevNetType); 2256 } 2257 mActiveDefaultNetwork = -1; 2258 try { 2259 mNetd.clearDefaultNetId(); 2260 } catch (Exception e) { 2261 loge("Exception clearing default network :" + e); 2262 } 2263 } 2264 2265 // don't signal a reconnect for anything lower or equal priority than our 2266 // current connected default 2267 // TODO - don't filter by priority now - nice optimization but risky 2268// int currentPriority = -1; 2269// if (mActiveDefaultNetwork != -1) { 2270// currentPriority = mNetConfigs[mActiveDefaultNetwork].mPriority; 2271// } 2272 2273 for (int checkType=0; checkType <= ConnectivityManager.MAX_NETWORK_TYPE; checkType++) { 2274 if (checkType == prevNetType) continue; 2275 if (mNetConfigs[checkType] == null) continue; 2276 if (!mNetConfigs[checkType].isDefault()) continue; 2277 if (mNetTrackers[checkType] == null) continue; 2278 2279// Enabling the isAvailable() optimization caused mobile to not get 2280// selected if it was in the middle of error handling. Specifically 2281// a moble connection that took 30 seconds to complete the DEACTIVATE_DATA_CALL 2282// would not be available and we wouldn't get connected to anything. 2283// So removing the isAvailable() optimization below for now. TODO: This 2284// optimization should work and we need to investigate why it doesn't work. 2285// This could be related to how DEACTIVATE_DATA_CALL is reporting its 2286// complete before it is really complete. 2287 2288// if (!mNetTrackers[checkType].isAvailable()) continue; 2289 2290// if (currentPriority >= mNetConfigs[checkType].mPriority) continue; 2291 2292 NetworkStateTracker checkTracker = mNetTrackers[checkType]; 2293 NetworkInfo checkInfo = checkTracker.getNetworkInfo(); 2294 if (!checkInfo.isConnectedOrConnecting() || checkTracker.isTeardownRequested()) { 2295 checkInfo.setFailover(true); 2296 checkTracker.reconnect(); 2297 } 2298 if (DBG) log("Attempting to switch to " + checkInfo.getTypeName()); 2299 } 2300 } 2301 } 2302 2303 public void sendConnectedBroadcast(NetworkInfo info) { 2304 enforceConnectivityInternalPermission(); 2305 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 2306 sendGeneralBroadcast(info, CONNECTIVITY_ACTION); 2307 } 2308 2309 private void sendConnectedBroadcastDelayed(NetworkInfo info, int delayMs) { 2310 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 2311 sendGeneralBroadcastDelayed(info, CONNECTIVITY_ACTION, delayMs); 2312 } 2313 2314 private void sendInetConditionBroadcast(NetworkInfo info) { 2315 sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION); 2316 } 2317 2318 private Intent makeGeneralIntent(NetworkInfo info, String bcastType) { 2319 if (mLockdownTracker != null) { 2320 info = mLockdownTracker.augmentNetworkInfo(info); 2321 } 2322 2323 Intent intent = new Intent(bcastType); 2324 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 2325 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 2326 if (info.isFailover()) { 2327 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 2328 info.setFailover(false); 2329 } 2330 if (info.getReason() != null) { 2331 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 2332 } 2333 if (info.getExtraInfo() != null) { 2334 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 2335 info.getExtraInfo()); 2336 } 2337 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 2338 return intent; 2339 } 2340 2341 private void sendGeneralBroadcast(NetworkInfo info, String bcastType) { 2342 sendStickyBroadcast(makeGeneralIntent(info, bcastType)); 2343 } 2344 2345 private void sendGeneralBroadcastDelayed(NetworkInfo info, String bcastType, int delayMs) { 2346 sendStickyBroadcastDelayed(makeGeneralIntent(info, bcastType), delayMs); 2347 } 2348 2349 private void sendDataActivityBroadcast(int deviceType, boolean active, long tsNanos) { 2350 Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); 2351 intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); 2352 intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); 2353 intent.putExtra(ConnectivityManager.EXTRA_REALTIME_NS, tsNanos); 2354 final long ident = Binder.clearCallingIdentity(); 2355 try { 2356 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, 2357 RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); 2358 } finally { 2359 Binder.restoreCallingIdentity(ident); 2360 } 2361 } 2362 2363 private void sendStickyBroadcast(Intent intent) { 2364 synchronized(this) { 2365 if (!mSystemReady) { 2366 mInitialBroadcast = new Intent(intent); 2367 } 2368 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2369 if (VDBG) { 2370 log("sendStickyBroadcast: action=" + intent.getAction()); 2371 } 2372 2373 final long ident = Binder.clearCallingIdentity(); 2374 try { 2375 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2376 } finally { 2377 Binder.restoreCallingIdentity(ident); 2378 } 2379 } 2380 } 2381 2382 private void sendStickyBroadcastDelayed(Intent intent, int delayMs) { 2383 if (delayMs <= 0) { 2384 sendStickyBroadcast(intent); 2385 } else { 2386 if (VDBG) { 2387 log("sendStickyBroadcastDelayed: delayMs=" + delayMs + ", action=" 2388 + intent.getAction()); 2389 } 2390 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2391 EVENT_SEND_STICKY_BROADCAST_INTENT, intent), delayMs); 2392 } 2393 } 2394 2395 void systemReady() { 2396 if (mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_WIFI)) { 2397 mCaptivePortalTracker = CaptivePortalTracker.makeCaptivePortalTracker(mContext, this); 2398 } 2399 loadGlobalProxy(); 2400 2401 synchronized(this) { 2402 mSystemReady = true; 2403 if (mInitialBroadcast != null) { 2404 mContext.sendStickyBroadcastAsUser(mInitialBroadcast, UserHandle.ALL); 2405 mInitialBroadcast = null; 2406 } 2407 } 2408 // load the global proxy at startup 2409 mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY)); 2410 2411 // Try bringing up tracker, but if KeyStore isn't ready yet, wait 2412 // for user to unlock device. 2413 if (!updateLockdownVpn()) { 2414 final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_PRESENT); 2415 mContext.registerReceiver(mUserPresentReceiver, filter); 2416 } 2417 } 2418 2419 private BroadcastReceiver mUserPresentReceiver = new BroadcastReceiver() { 2420 @Override 2421 public void onReceive(Context context, Intent intent) { 2422 // Try creating lockdown tracker, since user present usually means 2423 // unlocked keystore. 2424 if (updateLockdownVpn()) { 2425 mContext.unregisterReceiver(this); 2426 } 2427 } 2428 }; 2429 2430 private boolean isNewNetTypePreferredOverCurrentNetType(int type) { 2431 if (((type != mNetworkPreference) 2432 && (mNetConfigs[mActiveDefaultNetwork].priority > mNetConfigs[type].priority)) 2433 || (mNetworkPreference == mActiveDefaultNetwork)) { 2434 return false; 2435 } 2436 return true; 2437 } 2438 2439 private void handleConnect(NetworkInfo info) { 2440 final int newNetType = info.getType(); 2441 2442 // snapshot isFailover, because sendConnectedBroadcast() resets it 2443 boolean isFailover = info.isFailover(); 2444 final NetworkStateTracker thisNet = mNetTrackers[newNetType]; 2445 final String thisIface = thisNet.getLinkProperties().getInterfaceName(); 2446 2447 if (VDBG) { 2448 log("handleConnect: E newNetType=" + newNetType + " thisIface=" + thisIface 2449 + " isFailover" + isFailover); 2450 } 2451 2452 // if this is a default net and other default is running 2453 // kill the one not preferred 2454 if (mNetConfigs[newNetType].isDefault()) { 2455 if (mActiveDefaultNetwork != -1 && mActiveDefaultNetwork != newNetType) { 2456 if (isNewNetTypePreferredOverCurrentNetType(newNetType)) { 2457 String teardownPolicy = SystemProperties.get("net.teardownPolicy"); 2458 if (TextUtils.equals(teardownPolicy, "keep") == false) { 2459 // tear down the other 2460 NetworkStateTracker otherNet = 2461 mNetTrackers[mActiveDefaultNetwork]; 2462 if (DBG) { 2463 log("Policy requires " + otherNet.getNetworkInfo().getTypeName() + 2464 " teardown"); 2465 } 2466 if (!teardown(otherNet)) { 2467 loge("Network declined teardown request"); 2468 teardown(thisNet); 2469 return; 2470 } 2471 } else { 2472 //TODO - remove 2473 loge("network teardown skipped due to net.teardownPolicy setting"); 2474 } 2475 } else { 2476 // don't accept this one 2477 if (VDBG) { 2478 log("Not broadcasting CONNECT_ACTION " + 2479 "to torn down network " + info.getTypeName()); 2480 } 2481 teardown(thisNet); 2482 return; 2483 } 2484 } 2485 int thisNetId = nextNetId(); 2486 thisNet.setNetId(thisNetId); 2487 try { 2488// mNetd.createNetwork(thisNetId, thisIface); 2489 } catch (Exception e) { 2490 loge("Exception creating network :" + e); 2491 teardown(thisNet); 2492 return; 2493 } 2494// Already in place in new function. This is dead code. 2495// setupDataActivityTracking(newNetType); 2496 synchronized (ConnectivityService.this) { 2497 // have a new default network, release the transition wakelock in a second 2498 // if it's held. The second pause is to allow apps to reconnect over the 2499 // new network 2500 if (mNetTransitionWakeLock.isHeld()) { 2501 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2502 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 2503 mNetTransitionWakeLockSerialNumber, 0), 2504 1000); 2505 } 2506 } 2507 mActiveDefaultNetwork = newNetType; 2508 try { 2509 mNetd.setDefaultNetId(thisNetId); 2510 } catch (Exception e) { 2511 loge("Exception setting default network :" + e); 2512 } 2513 // this will cause us to come up initially as unconnected and switching 2514 // to connected after our normal pause unless somebody reports us as reall 2515 // disconnected 2516 mDefaultInetConditionPublished = 0; 2517 mDefaultConnectionSequence++; 2518 mInetConditionChangeInFlight = false; 2519 // Don't do this - if we never sign in stay, grey 2520 //reportNetworkCondition(mActiveDefaultNetwork, 100); 2521 updateNetworkSettings(thisNet); 2522 } else { 2523 int thisNetId = nextNetId(); 2524 thisNet.setNetId(thisNetId); 2525 try { 2526// mNetd.createNetwork(thisNetId, thisIface); 2527 } catch (Exception e) { 2528 loge("Exception creating network :" + e); 2529 teardown(thisNet); 2530 return; 2531 } 2532 } 2533 thisNet.setTeardownRequested(false); 2534// Already in place in new function. This is dead code. 2535// updateMtuSizeSettings(thisNet); 2536// handleConnectivityChange(newNetType, false); 2537 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 2538 2539 // notify battery stats service about this network 2540 if (thisIface != null) { 2541 try { 2542 BatteryStatsService.getService().noteNetworkInterfaceType(thisIface, newNetType); 2543 } catch (RemoteException e) { 2544 // ignored; service lives in system_server 2545 } 2546 } 2547 } 2548 2549 /** @hide */ 2550 @Override 2551 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 2552 enforceConnectivityInternalPermission(); 2553 if (DBG) log("captivePortalCheckCompleted: ni=" + info + " captive=" + isCaptivePortal); 2554// mNetTrackers[info.getType()].captivePortalCheckCompleted(isCaptivePortal); 2555 } 2556 2557 /** 2558 * Setup data activity tracking for the given network. 2559 * 2560 * Every {@code setupDataActivityTracking} should be paired with a 2561 * {@link #removeDataActivityTracking} for cleanup. 2562 */ 2563 private void setupDataActivityTracking(NetworkAgentInfo networkAgent) { 2564 final String iface = networkAgent.linkProperties.getInterfaceName(); 2565 2566 final int timeout; 2567 int type = ConnectivityManager.TYPE_NONE; 2568 2569 if (networkAgent.networkCapabilities.hasTransport( 2570 NetworkCapabilities.TRANSPORT_CELLULAR)) { 2571 timeout = Settings.Global.getInt(mContext.getContentResolver(), 2572 Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, 2573 5); 2574 type = ConnectivityManager.TYPE_MOBILE; 2575 } else if (networkAgent.networkCapabilities.hasTransport( 2576 NetworkCapabilities.TRANSPORT_WIFI)) { 2577 timeout = Settings.Global.getInt(mContext.getContentResolver(), 2578 Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, 2579 0); 2580 type = ConnectivityManager.TYPE_WIFI; 2581 } else { 2582 // do not track any other networks 2583 timeout = 0; 2584 } 2585 2586 if (timeout > 0 && iface != null && type != ConnectivityManager.TYPE_NONE) { 2587 try { 2588 mNetd.addIdleTimer(iface, timeout, type); 2589 } catch (Exception e) { 2590 // You shall not crash! 2591 loge("Exception in setupDataActivityTracking " + e); 2592 } 2593 } 2594 } 2595 2596 /** 2597 * Remove data activity tracking when network disconnects. 2598 */ 2599 private void removeDataActivityTracking(NetworkAgentInfo networkAgent) { 2600 final String iface = networkAgent.linkProperties.getInterfaceName(); 2601 final NetworkCapabilities caps = networkAgent.networkCapabilities; 2602 2603 if (iface != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) || 2604 caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))) { 2605 try { 2606 // the call fails silently if no idletimer setup for this interface 2607 mNetd.removeIdleTimer(iface); 2608 } catch (Exception e) { 2609 loge("Exception in removeDataActivityTracking " + e); 2610 } 2611 } 2612 } 2613 2614 /** 2615 * After a change in the connectivity state of a network. We're mainly 2616 * concerned with making sure that the list of DNS servers is set up 2617 * according to which networks are connected, and ensuring that the 2618 * right routing table entries exist. 2619 * 2620 * TODO - delete when we're sure all this functionallity is captured. 2621 */ 2622 private void handleConnectivityChange(int netType, LinkProperties curLp, boolean doReset) { 2623 int resetMask = doReset ? NetworkUtils.RESET_ALL_ADDRESSES : 0; 2624 boolean exempt = ConnectivityManager.isNetworkTypeExempt(netType); 2625 if (VDBG) { 2626 log("handleConnectivityChange: netType=" + netType + " doReset=" + doReset 2627 + " resetMask=" + resetMask); 2628 } 2629 2630 /* 2631 * If a non-default network is enabled, add the host routes that 2632 * will allow it's DNS servers to be accessed. 2633 */ 2634 handleDnsConfigurationChange(netType); 2635 2636 LinkProperties newLp = null; 2637 2638 if (mNetTrackers[netType].getNetworkInfo().isConnected()) { 2639 newLp = mNetTrackers[netType].getLinkProperties(); 2640 if (VDBG) { 2641 log("handleConnectivityChange: changed linkProperty[" + netType + "]:" + 2642 " doReset=" + doReset + " resetMask=" + resetMask + 2643 "\n curLp=" + curLp + 2644 "\n newLp=" + newLp); 2645 } 2646 2647 if (curLp != null) { 2648 if (curLp.isIdenticalInterfaceName(newLp)) { 2649 CompareResult<LinkAddress> car = curLp.compareAddresses(newLp); 2650 if ((car.removed.size() != 0) || (car.added.size() != 0)) { 2651 for (LinkAddress linkAddr : car.removed) { 2652 if (linkAddr.getAddress() instanceof Inet4Address) { 2653 resetMask |= NetworkUtils.RESET_IPV4_ADDRESSES; 2654 } 2655 if (linkAddr.getAddress() instanceof Inet6Address) { 2656 resetMask |= NetworkUtils.RESET_IPV6_ADDRESSES; 2657 } 2658 } 2659 if (DBG) { 2660 log("handleConnectivityChange: addresses changed" + 2661 " linkProperty[" + netType + "]:" + " resetMask=" + resetMask + 2662 "\n car=" + car); 2663 } 2664 } else { 2665 if (VDBG) { 2666 log("handleConnectivityChange: addresses are the same reset per" + 2667 " doReset linkProperty[" + netType + "]:" + 2668 " resetMask=" + resetMask); 2669 } 2670 } 2671 } else { 2672 resetMask = NetworkUtils.RESET_ALL_ADDRESSES; 2673 if (DBG) { 2674 log("handleConnectivityChange: interface not not equivalent reset both" + 2675 " linkProperty[" + netType + "]:" + 2676 " resetMask=" + resetMask); 2677 } 2678 } 2679 } 2680 if (mNetConfigs[netType].isDefault()) { 2681 handleApplyDefaultProxy(newLp.getHttpProxy()); 2682 } 2683 } else { 2684 if (VDBG) { 2685 log("handleConnectivityChange: changed linkProperty[" + netType + "]:" + 2686 " doReset=" + doReset + " resetMask=" + resetMask + 2687 "\n curLp=" + curLp + 2688 "\n newLp= null"); 2689 } 2690 } 2691 mCurrentLinkProperties[netType] = newLp; 2692 boolean resetDns = updateRoutes(newLp, curLp, mNetConfigs[netType].isDefault(), exempt, 2693 mNetTrackers[netType].getNetwork().netId); 2694 2695 if (resetMask != 0 || resetDns) { 2696 if (VDBG) log("handleConnectivityChange: resetting"); 2697 if (curLp != null) { 2698 if (VDBG) log("handleConnectivityChange: resetting curLp=" + curLp); 2699 for (String iface : curLp.getAllInterfaceNames()) { 2700 if (TextUtils.isEmpty(iface) == false) { 2701 if (resetMask != 0) { 2702 if (DBG) log("resetConnections(" + iface + ", " + resetMask + ")"); 2703 NetworkUtils.resetConnections(iface, resetMask); 2704 2705 // Tell VPN the interface is down. It is a temporary 2706 // but effective fix to make VPN aware of the change. 2707 if ((resetMask & NetworkUtils.RESET_IPV4_ADDRESSES) != 0) { 2708 synchronized(mVpns) { 2709 for (int i = 0; i < mVpns.size(); i++) { 2710 mVpns.valueAt(i).interfaceStatusChanged(iface, false); 2711 } 2712 } 2713 } 2714 } 2715 } else { 2716 loge("Can't reset connection for type "+netType); 2717 } 2718 } 2719 if (resetDns) { 2720 flushVmDnsCache(); 2721 if (VDBG) log("resetting DNS cache for type " + netType); 2722 try { 2723 mNetd.flushNetworkDnsCache(mNetTrackers[netType].getNetwork().netId); 2724 } catch (Exception e) { 2725 // never crash - catch them all 2726 if (DBG) loge("Exception resetting dns cache: " + e); 2727 } 2728 } 2729 } 2730 } 2731 2732 // TODO: Temporary notifying upstread change to Tethering. 2733 // @see bug/4455071 2734 /** Notify TetheringService if interface name has been changed. */ 2735 if (TextUtils.equals(mNetTrackers[netType].getNetworkInfo().getReason(), 2736 PhoneConstants.REASON_LINK_PROPERTIES_CHANGED)) { 2737 if (isTetheringSupported()) { 2738 mTethering.handleTetherIfaceChange(); 2739 } 2740 } 2741 } 2742 2743 /** 2744 * Add and remove routes using the old properties (null if not previously connected), 2745 * new properties (null if becoming disconnected). May even be double null, which 2746 * is a noop. 2747 * Uses isLinkDefault to determine if default routes should be set or conversely if 2748 * host routes should be set to the dns servers 2749 * returns a boolean indicating the routes changed 2750 */ 2751 private boolean updateRoutes(LinkProperties newLp, LinkProperties curLp, 2752 boolean isLinkDefault, boolean exempt, int netId) { 2753 Collection<RouteInfo> routesToAdd = null; 2754 CompareResult<InetAddress> dnsDiff = new CompareResult<InetAddress>(); 2755 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 2756 if (curLp != null) { 2757 // check for the delta between the current set and the new 2758 routeDiff = curLp.compareAllRoutes(newLp); 2759 dnsDiff = curLp.compareDnses(newLp); 2760 } else if (newLp != null) { 2761 routeDiff.added = newLp.getAllRoutes(); 2762 dnsDiff.added = newLp.getDnsServers(); 2763 } 2764 2765 boolean routesChanged = (routeDiff.removed.size() != 0 || routeDiff.added.size() != 0); 2766 2767 for (RouteInfo r : routeDiff.removed) { 2768 if (isLinkDefault || ! r.isDefaultRoute()) { 2769 if (VDBG) log("updateRoutes: default remove route r=" + r); 2770 removeRoute(curLp, r, TO_DEFAULT_TABLE, netId); 2771 } 2772 if (isLinkDefault == false) { 2773 // remove from a secondary route table 2774 removeRoute(curLp, r, TO_SECONDARY_TABLE, netId); 2775 } 2776 } 2777 2778 for (RouteInfo r : routeDiff.added) { 2779 if (isLinkDefault || ! r.isDefaultRoute()) { 2780 addRoute(newLp, r, TO_DEFAULT_TABLE, exempt, netId); 2781 } else { 2782 // add to a secondary route table 2783 addRoute(newLp, r, TO_SECONDARY_TABLE, UNEXEMPT, netId); 2784 2785 // many radios add a default route even when we don't want one. 2786 // remove the default route unless somebody else has asked for it 2787 String ifaceName = newLp.getInterfaceName(); 2788 synchronized (mRoutesLock) { 2789 if (!TextUtils.isEmpty(ifaceName) && !mAddedRoutes.contains(r)) { 2790 if (VDBG) log("Removing " + r + " for interface " + ifaceName); 2791 try { 2792 mNetd.removeRoute(netId, r); 2793 } catch (Exception e) { 2794 // never crash - catch them all 2795 if (DBG) loge("Exception trying to remove a route: " + e); 2796 } 2797 } 2798 } 2799 } 2800 } 2801 2802 return routesChanged; 2803 } 2804 2805 /** 2806 * Reads the network specific MTU size from reources. 2807 * and set it on it's iface. 2808 */ 2809 private void updateMtu(LinkProperties newLp, LinkProperties oldLp) { 2810 final String iface = newLp.getInterfaceName(); 2811 final int mtu = newLp.getMtu(); 2812 if (oldLp != null && newLp.isIdenticalMtu(oldLp)) { 2813 if (VDBG) log("identical MTU - not setting"); 2814 return; 2815 } 2816 2817 if (mtu < 68 || mtu > 10000) { 2818 loge("Unexpected mtu value: " + mtu + ", " + iface); 2819 return; 2820 } 2821 2822 try { 2823 if (VDBG) log("Setting MTU size: " + iface + ", " + mtu); 2824 mNetd.setMtu(iface, mtu); 2825 } catch (Exception e) { 2826 Slog.e(TAG, "exception in setMtu()" + e); 2827 } 2828 } 2829 2830 /** 2831 * Reads the network specific TCP buffer sizes from SystemProperties 2832 * net.tcp.buffersize.[default|wifi|umts|edge|gprs] and set them for system 2833 * wide use 2834 */ 2835 private void updateNetworkSettings(NetworkStateTracker nt) { 2836 String key = nt.getTcpBufferSizesPropName(); 2837 String bufferSizes = key == null ? null : SystemProperties.get(key); 2838 2839 if (TextUtils.isEmpty(bufferSizes)) { 2840 if (VDBG) log(key + " not found in system properties. Using defaults"); 2841 2842 // Setting to default values so we won't be stuck to previous values 2843 key = "net.tcp.buffersize.default"; 2844 bufferSizes = SystemProperties.get(key); 2845 } 2846 2847 // Set values in kernel 2848 if (bufferSizes.length() != 0) { 2849 if (VDBG) { 2850 log("Setting TCP values: [" + bufferSizes 2851 + "] which comes from [" + key + "]"); 2852 } 2853 setBufferSize(bufferSizes); 2854 } 2855 2856 final String defaultRwndKey = "net.tcp.default_init_rwnd"; 2857 int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0); 2858 Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(), 2859 Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue); 2860 final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd"; 2861 if (rwndValue != 0) { 2862 SystemProperties.set(sysctlKey, rwndValue.toString()); 2863 } 2864 } 2865 2866 /** 2867 * Writes TCP buffer sizes to /sys/kernel/ipv4/tcp_[r/w]mem_[min/def/max] 2868 * which maps to /proc/sys/net/ipv4/tcp_rmem and tcpwmem 2869 * 2870 * @param bufferSizes in the format of "readMin, readInitial, readMax, 2871 * writeMin, writeInitial, writeMax" 2872 */ 2873 private void setBufferSize(String bufferSizes) { 2874 try { 2875 String[] values = bufferSizes.split(","); 2876 2877 if (values.length == 6) { 2878 final String prefix = "/sys/kernel/ipv4/tcp_"; 2879 FileUtils.stringToFile(prefix + "rmem_min", values[0]); 2880 FileUtils.stringToFile(prefix + "rmem_def", values[1]); 2881 FileUtils.stringToFile(prefix + "rmem_max", values[2]); 2882 FileUtils.stringToFile(prefix + "wmem_min", values[3]); 2883 FileUtils.stringToFile(prefix + "wmem_def", values[4]); 2884 FileUtils.stringToFile(prefix + "wmem_max", values[5]); 2885 } else { 2886 loge("Invalid buffersize string: " + bufferSizes); 2887 } 2888 } catch (IOException e) { 2889 loge("Can't set tcp buffer sizes:" + e); 2890 } 2891 } 2892 2893 /** 2894 * Adjust the per-process dns entries (net.dns<x>.<pid>) based 2895 * on the highest priority active net which this process requested. 2896 * If there aren't any, clear it out 2897 */ 2898 private void reassessPidDns(int pid, boolean doBump) 2899 { 2900 if (VDBG) log("reassessPidDns for pid " + pid); 2901 Integer myPid = new Integer(pid); 2902 for(int i : mPriorityList) { 2903 if (mNetConfigs[i].isDefault()) { 2904 continue; 2905 } 2906 NetworkStateTracker nt = mNetTrackers[i]; 2907 if (nt.getNetworkInfo().isConnected() && 2908 !nt.isTeardownRequested()) { 2909 LinkProperties p = nt.getLinkProperties(); 2910 if (p == null) continue; 2911 if (mNetRequestersPids[i].contains(myPid)) { 2912 try { 2913 // TODO: Reimplement this via local variable in bionic. 2914 // mNetd.setDnsNetworkForPid(nt.getNetwork().netId, pid); 2915 } catch (Exception e) { 2916 Slog.e(TAG, "exception reasseses pid dns: " + e); 2917 } 2918 return; 2919 } 2920 } 2921 } 2922 // nothing found - delete 2923 try { 2924 // TODO: Reimplement this via local variable in bionic. 2925 // mNetd.clearDnsNetworkForPid(pid); 2926 } catch (Exception e) { 2927 Slog.e(TAG, "exception clear interface from pid: " + e); 2928 } 2929 } 2930 2931 private void flushVmDnsCache() { 2932 /* 2933 * Tell the VMs to toss their DNS caches 2934 */ 2935 Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE); 2936 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); 2937 /* 2938 * Connectivity events can happen before boot has completed ... 2939 */ 2940 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2941 final long ident = Binder.clearCallingIdentity(); 2942 try { 2943 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 2944 } finally { 2945 Binder.restoreCallingIdentity(ident); 2946 } 2947 } 2948 2949 // Caller must grab mDnsLock. 2950 private void updateDnsLocked(String network, int netId, 2951 Collection<InetAddress> dnses, String domains) { 2952 int last = 0; 2953 if (dnses.size() == 0 && mDefaultDns != null) { 2954 dnses = new ArrayList(); 2955 dnses.add(mDefaultDns); 2956 if (DBG) { 2957 loge("no dns provided for " + network + " - using " + mDefaultDns.getHostAddress()); 2958 } 2959 } 2960 2961 try { 2962 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), domains); 2963 2964 for (InetAddress dns : dnses) { 2965 ++last; 2966 String key = "net.dns" + last; 2967 String value = dns.getHostAddress(); 2968 SystemProperties.set(key, value); 2969 } 2970 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 2971 String key = "net.dns" + i; 2972 SystemProperties.set(key, ""); 2973 } 2974 mNumDnsEntries = last; 2975 } catch (Exception e) { 2976 loge("exception setting default dns interface: " + e); 2977 } 2978 } 2979 2980 private void handleDnsConfigurationChange(int netType) { 2981 // add default net's dns entries 2982 NetworkStateTracker nt = mNetTrackers[netType]; 2983 if (nt != null && nt.getNetworkInfo().isConnected() && !nt.isTeardownRequested()) { 2984 LinkProperties p = nt.getLinkProperties(); 2985 if (p == null) return; 2986 Collection<InetAddress> dnses = p.getDnsServers(); 2987 int netId = nt.getNetwork().netId; 2988 if (mNetConfigs[netType].isDefault()) { 2989 String network = nt.getNetworkInfo().getTypeName(); 2990 synchronized (mDnsLock) { 2991 updateDnsLocked(network, netId, dnses, p.getDomains()); 2992 } 2993 } else { 2994 try { 2995 mNetd.setDnsServersForNetwork(netId, 2996 NetworkUtils.makeStrings(dnses), p.getDomains()); 2997 } catch (Exception e) { 2998 if (DBG) loge("exception setting dns servers: " + e); 2999 } 3000 // set per-pid dns for attached secondary nets 3001 List<Integer> pids = mNetRequestersPids[netType]; 3002 for (Integer pid : pids) { 3003 try { 3004 // TODO: Reimplement this via local variable in bionic. 3005 // mNetd.setDnsNetworkForPid(netId, pid); 3006 } catch (Exception e) { 3007 Slog.e(TAG, "exception setting interface for pid: " + e); 3008 } 3009 } 3010 } 3011 flushVmDnsCache(); 3012 } 3013 } 3014 3015 @Override 3016 public int getRestoreDefaultNetworkDelay(int networkType) { 3017 String restoreDefaultNetworkDelayStr = SystemProperties.get( 3018 NETWORK_RESTORE_DELAY_PROP_NAME); 3019 if(restoreDefaultNetworkDelayStr != null && 3020 restoreDefaultNetworkDelayStr.length() != 0) { 3021 try { 3022 return Integer.valueOf(restoreDefaultNetworkDelayStr); 3023 } catch (NumberFormatException e) { 3024 } 3025 } 3026 // if the system property isn't set, use the value for the apn type 3027 int ret = RESTORE_DEFAULT_NETWORK_DELAY; 3028 3029 if ((networkType <= ConnectivityManager.MAX_NETWORK_TYPE) && 3030 (mNetConfigs[networkType] != null)) { 3031 ret = mNetConfigs[networkType].restoreTime; 3032 } 3033 return ret; 3034 } 3035 3036 @Override 3037 protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { 3038 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 3039 if (mContext.checkCallingOrSelfPermission( 3040 android.Manifest.permission.DUMP) 3041 != PackageManager.PERMISSION_GRANTED) { 3042 pw.println("Permission Denial: can't dump ConnectivityService " + 3043 "from from pid=" + Binder.getCallingPid() + ", uid=" + 3044 Binder.getCallingUid()); 3045 return; 3046 } 3047 3048 pw.println("NetworkFactories for:"); 3049 pw.increaseIndent(); 3050 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 3051 pw.println(nfi.name); 3052 } 3053 pw.decreaseIndent(); 3054 pw.println(); 3055 3056 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 3057 pw.print("Active default network: "); 3058 if (defaultNai == null) { 3059 pw.println("none"); 3060 } else { 3061 pw.println(defaultNai.network.netId); 3062 } 3063 pw.println(); 3064 3065 pw.println("Current Networks:"); 3066 pw.increaseIndent(); 3067 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 3068 pw.println(nai.toString()); 3069 pw.increaseIndent(); 3070 pw.println("Requests:"); 3071 pw.increaseIndent(); 3072 for (int i = 0; i < nai.networkRequests.size(); i++) { 3073 pw.println(nai.networkRequests.valueAt(i).toString()); 3074 } 3075 pw.decreaseIndent(); 3076 pw.println("Lingered:"); 3077 pw.increaseIndent(); 3078 for (NetworkRequest nr : nai.networkLingered) pw.println(nr.toString()); 3079 pw.decreaseIndent(); 3080 pw.decreaseIndent(); 3081 } 3082 pw.decreaseIndent(); 3083 pw.println(); 3084 3085 pw.println("Network Requests:"); 3086 pw.increaseIndent(); 3087 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 3088 pw.println(nri.toString()); 3089 } 3090 pw.println(); 3091 pw.decreaseIndent(); 3092 3093 synchronized (this) { 3094 pw.println("NetworkTranstionWakeLock is currently " + 3095 (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held."); 3096 pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy); 3097 } 3098 pw.println(); 3099 3100 mTethering.dump(fd, pw, args); 3101 3102 if (mInetLog != null) { 3103 pw.println(); 3104 pw.println("Inet condition reports:"); 3105 pw.increaseIndent(); 3106 for(int i = 0; i < mInetLog.size(); i++) { 3107 pw.println(mInetLog.get(i)); 3108 } 3109 pw.decreaseIndent(); 3110 } 3111 } 3112 3113 // must be stateless - things change under us. 3114 private class NetworkStateTrackerHandler extends Handler { 3115 public NetworkStateTrackerHandler(Looper looper) { 3116 super(looper); 3117 } 3118 3119 @Override 3120 public void handleMessage(Message msg) { 3121 NetworkInfo info; 3122 switch (msg.what) { 3123 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 3124 handleAsyncChannelHalfConnect(msg); 3125 break; 3126 } 3127 case AsyncChannel.CMD_CHANNEL_DISCONNECT: { 3128 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3129 if (nai != null) nai.asyncChannel.disconnect(); 3130 break; 3131 } 3132 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 3133 handleAsyncChannelDisconnected(msg); 3134 break; 3135 } 3136 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { 3137 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3138 if (nai == null) { 3139 loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); 3140 } else { 3141 updateCapabilities(nai, (NetworkCapabilities)msg.obj); 3142 } 3143 break; 3144 } 3145 case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { 3146 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3147 if (nai == null) { 3148 loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); 3149 } else { 3150 if (VDBG) log("Update of Linkproperties for " + nai.name()); 3151 LinkProperties oldLp = nai.linkProperties; 3152 synchronized (nai) { 3153 nai.linkProperties = (LinkProperties)msg.obj; 3154 } 3155 updateLinkProperties(nai, oldLp); 3156 } 3157 break; 3158 } 3159 case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { 3160 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3161 if (nai == null) { 3162 loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); 3163 break; 3164 } 3165 info = (NetworkInfo) msg.obj; 3166 updateNetworkInfo(nai, info); 3167 break; 3168 } 3169 case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { 3170 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3171 if (nai == null) { 3172 loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); 3173 break; 3174 } 3175 Integer score = (Integer) msg.obj; 3176 if (score != null) updateNetworkScore(nai, score.intValue()); 3177 break; 3178 } 3179 case NetworkAgent.EVENT_UID_RANGES_ADDED: { 3180 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3181 if (nai == null) { 3182 loge("EVENT_UID_RANGES_ADDED from unknown NetworkAgent"); 3183 break; 3184 } 3185 try { 3186 mNetd.addVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 3187 } catch (RemoteException e) { 3188 } 3189 break; 3190 } 3191 case NetworkAgent.EVENT_UID_RANGES_REMOVED: { 3192 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3193 if (nai == null) { 3194 loge("EVENT_UID_RANGES_REMOVED from unknown NetworkAgent"); 3195 break; 3196 } 3197 try { 3198 mNetd.removeVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 3199 } catch (RemoteException e) { 3200 } 3201 break; 3202 } 3203 case NetworkMonitor.EVENT_NETWORK_VALIDATED: { 3204 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 3205 handleConnectionValidated(nai); 3206 break; 3207 } 3208 case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { 3209 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 3210 handleLingerComplete(nai); 3211 break; 3212 } 3213 case NetworkMonitor.EVENT_PROVISIONING_NOTIFICATION: { 3214 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3215 if (nai == null) { 3216 loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); 3217 break; 3218 } 3219 setProvNotificationVisibleIntent(msg.arg1 != 0, nai.networkInfo.getType(), 3220 nai.networkInfo.getExtraInfo(), (PendingIntent)msg.obj); 3221 break; 3222 } 3223 case NetworkStateTracker.EVENT_STATE_CHANGED: { 3224 info = (NetworkInfo) msg.obj; 3225 NetworkInfo.State state = info.getState(); 3226 3227 if (VDBG || (state == NetworkInfo.State.CONNECTED) || 3228 (state == NetworkInfo.State.DISCONNECTED) || 3229 (state == NetworkInfo.State.SUSPENDED)) { 3230 log("ConnectivityChange for " + 3231 info.getTypeName() + ": " + 3232 state + "/" + info.getDetailedState()); 3233 } 3234 3235 // Since mobile has the notion of a network/apn that can be used for 3236 // provisioning we need to check every time we're connected as 3237 // CaptiveProtalTracker won't detected it because DCT doesn't report it 3238 // as connected as ACTION_ANY_DATA_CONNECTION_STATE_CHANGED instead its 3239 // reported as ACTION_DATA_CONNECTION_CONNECTED_TO_PROVISIONING_APN. Which 3240 // is received by MDST and sent here as EVENT_STATE_CHANGED. 3241 if (ConnectivityManager.isNetworkTypeMobile(info.getType()) 3242 && (0 != Settings.Global.getInt(mContext.getContentResolver(), 3243 Settings.Global.DEVICE_PROVISIONED, 0)) 3244 && (((state == NetworkInfo.State.CONNECTED) 3245 && (info.getType() == ConnectivityManager.TYPE_MOBILE)) 3246 || info.isConnectedToProvisioningNetwork())) { 3247 log("ConnectivityChange checkMobileProvisioning for" 3248 + " TYPE_MOBILE or ProvisioningNetwork"); 3249 checkMobileProvisioning(CheckMp.MAX_TIMEOUT_MS); 3250 } 3251 3252 EventLogTags.writeConnectivityStateChanged( 3253 info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); 3254 3255 if (info.isConnectedToProvisioningNetwork()) { 3256 /** 3257 * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING 3258 * for now its an in between network, its a network that 3259 * is actually a default network but we don't want it to be 3260 * announced as such to keep background applications from 3261 * trying to use it. It turns out that some still try so we 3262 * take the additional step of clearing any default routes 3263 * to the link that may have incorrectly setup by the lower 3264 * levels. 3265 */ 3266 LinkProperties lp = getLinkPropertiesForTypeInternal(info.getType()); 3267 if (DBG) { 3268 log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); 3269 } 3270 3271 // Clear any default routes setup by the radio so 3272 // any activity by applications trying to use this 3273 // connection will fail until the provisioning network 3274 // is enabled. 3275 for (RouteInfo r : lp.getRoutes()) { 3276 removeRoute(lp, r, TO_DEFAULT_TABLE, 3277 mNetTrackers[info.getType()].getNetwork().netId); 3278 } 3279 } else if (state == NetworkInfo.State.DISCONNECTED) { 3280 } else if (state == NetworkInfo.State.SUSPENDED) { 3281 } else if (state == NetworkInfo.State.CONNECTED) { 3282 // handleConnect(info); 3283 } 3284 if (mLockdownTracker != null) { 3285 mLockdownTracker.onNetworkInfoChanged(info); 3286 } 3287 break; 3288 } 3289 case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { 3290 info = (NetworkInfo) msg.obj; 3291 // TODO: Temporary allowing network configuration 3292 // change not resetting sockets. 3293 // @see bug/4455071 3294 handleConnectivityChange(info.getType(), mCurrentLinkProperties[info.getType()], 3295 false); 3296 break; 3297 } 3298 case NetworkStateTracker.EVENT_NETWORK_SUBTYPE_CHANGED: { 3299 info = (NetworkInfo) msg.obj; 3300 int type = info.getType(); 3301 if (mNetConfigs[type].isDefault()) updateNetworkSettings(mNetTrackers[type]); 3302 break; 3303 } 3304 } 3305 } 3306 } 3307 3308 private void handleAsyncChannelHalfConnect(Message msg) { 3309 AsyncChannel ac = (AsyncChannel) msg.obj; 3310 if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { 3311 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 3312 if (VDBG) log("NetworkFactory connected"); 3313 // A network factory has connected. Send it all current NetworkRequests. 3314 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 3315 if (nri.isRequest == false) continue; 3316 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 3317 ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, 3318 (nai != null ? nai.currentScore : 0), 0, nri.request); 3319 } 3320 } else { 3321 loge("Error connecting NetworkFactory"); 3322 mNetworkFactoryInfos.remove(msg.obj); 3323 } 3324 } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { 3325 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 3326 if (VDBG) log("NetworkAgent connected"); 3327 // A network agent has requested a connection. Establish the connection. 3328 mNetworkAgentInfos.get(msg.replyTo).asyncChannel. 3329 sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 3330 } else { 3331 loge("Error connecting NetworkAgent"); 3332 NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); 3333 if (nai != null) { 3334 synchronized (mNetworkForNetId) { 3335 mNetworkForNetId.remove(nai.network.netId); 3336 } 3337 mLegacyTypeTracker.remove(nai); 3338 } 3339 } 3340 } 3341 } 3342 private void handleAsyncChannelDisconnected(Message msg) { 3343 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3344 if (nai != null) { 3345 if (DBG) { 3346 log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); 3347 } 3348 // A network agent has disconnected. 3349 // Tell netd to clean up the configuration for this network 3350 // (routing rules, DNS, etc). 3351 try { 3352 mNetd.removeNetwork(nai.network.netId); 3353 } catch (Exception e) { 3354 loge("Exception removing network: " + e); 3355 } 3356 // TODO - if we move the logic to the network agent (have them disconnect 3357 // because they lost all their requests or because their score isn't good) 3358 // then they would disconnect organically, report their new state and then 3359 // disconnect the channel. 3360 if (nai.networkInfo.isConnected()) { 3361 nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, 3362 null, null); 3363 } 3364 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); 3365 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); 3366 mNetworkAgentInfos.remove(msg.replyTo); 3367 updateClat(null, nai.linkProperties, nai); 3368 mLegacyTypeTracker.remove(nai); 3369 synchronized (mNetworkForNetId) { 3370 mNetworkForNetId.remove(nai.network.netId); 3371 } 3372 // Since we've lost the network, go through all the requests that 3373 // it was satisfying and see if any other factory can satisfy them. 3374 final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); 3375 for (int i = 0; i < nai.networkRequests.size(); i++) { 3376 NetworkRequest request = nai.networkRequests.valueAt(i); 3377 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); 3378 if (VDBG) { 3379 log(" checking request " + request + ", currentNetwork = " + 3380 (currentNetwork != null ? currentNetwork.name() : "null")); 3381 } 3382 if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { 3383 mNetworkForRequestId.remove(request.requestId); 3384 sendUpdatedScoreToFactories(request, 0); 3385 NetworkAgentInfo alternative = null; 3386 for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { 3387 NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); 3388 if (existing.networkInfo.isConnected() && 3389 request.networkCapabilities.satisfiedByNetworkCapabilities( 3390 existing.networkCapabilities) && 3391 (alternative == null || 3392 alternative.currentScore < existing.currentScore)) { 3393 alternative = existing; 3394 } 3395 } 3396 if (alternative != null && !toActivate.contains(alternative)) { 3397 toActivate.add(alternative); 3398 } 3399 } 3400 } 3401 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 3402 removeDataActivityTracking(nai); 3403 mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; 3404 requestNetworkTransitionWakelock(nai.name()); 3405 } 3406 for (NetworkAgentInfo networkToActivate : toActivate) { 3407 networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 3408 } 3409 } 3410 } 3411 3412 private void handleRegisterNetworkRequest(Message msg) { 3413 final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); 3414 final NetworkCapabilities newCap = nri.request.networkCapabilities; 3415 int score = 0; 3416 3417 // Check for the best currently alive network that satisfies this request 3418 NetworkAgentInfo bestNetwork = null; 3419 for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { 3420 if (VDBG) log("handleRegisterNetworkRequest checking " + network.name()); 3421 if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { 3422 if (VDBG) log("apparently satisfied. currentScore=" + network.currentScore); 3423 if ((bestNetwork == null) || bestNetwork.currentScore < network.currentScore) { 3424 bestNetwork = network; 3425 } 3426 } 3427 } 3428 if (bestNetwork != null) { 3429 if (VDBG) log("using " + bestNetwork.name()); 3430 if (nri.isRequest && bestNetwork.networkInfo.isConnected()) { 3431 // Cancel any lingering so the linger timeout doesn't teardown this network 3432 // even though we have a request for it. 3433 bestNetwork.networkLingered.clear(); 3434 bestNetwork.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 3435 } 3436 bestNetwork.addRequest(nri.request); 3437 mNetworkForRequestId.put(nri.request.requestId, bestNetwork); 3438 int legacyType = nri.request.legacyType; 3439 if (legacyType != TYPE_NONE) { 3440 mLegacyTypeTracker.add(legacyType, bestNetwork); 3441 } 3442 notifyNetworkCallback(bestNetwork, nri); 3443 score = bestNetwork.currentScore; 3444 } 3445 mNetworkRequests.put(nri.request, nri); 3446 if (msg.what == EVENT_REGISTER_NETWORK_REQUEST) { 3447 if (DBG) log("sending new NetworkRequest to factories"); 3448 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 3449 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 3450 0, nri.request); 3451 } 3452 } 3453 } 3454 3455 private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) { 3456 NetworkRequestInfo nri = mNetworkRequests.get(request); 3457 if (nri != null) { 3458 if (nri.mUid != callingUid) { 3459 if (DBG) log("Attempt to release unowned NetworkRequest " + request); 3460 return; 3461 } 3462 if (DBG) log("releasing NetworkRequest " + request); 3463 mNetworkRequests.remove(request); 3464 // tell the network currently servicing this that it's no longer interested 3465 NetworkAgentInfo affectedNetwork = mNetworkForRequestId.get(nri.request.requestId); 3466 if (affectedNetwork != null) { 3467 mNetworkForRequestId.remove(nri.request.requestId); 3468 affectedNetwork.networkRequests.remove(nri.request.requestId); 3469 if (VDBG) { 3470 log(" Removing from current network " + affectedNetwork.name() + ", leaving " + 3471 affectedNetwork.networkRequests.size() + " requests."); 3472 } 3473 } 3474 3475 if (nri.isRequest) { 3476 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 3477 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 3478 nri.request); 3479 } 3480 3481 if (affectedNetwork != null) { 3482 // check if this network still has live requests - otherwise, tear down 3483 // TODO - probably push this to the NF/NA 3484 boolean keep = affectedNetwork.isVPN(); 3485 for (int i = 0; i < affectedNetwork.networkRequests.size() && !keep; i++) { 3486 NetworkRequest r = affectedNetwork.networkRequests.valueAt(i); 3487 if (mNetworkRequests.get(r).isRequest) { 3488 keep = true; 3489 } 3490 } 3491 if (keep == false) { 3492 if (DBG) log("no live requests for " + affectedNetwork.name() + 3493 "; disconnecting"); 3494 affectedNetwork.asyncChannel.disconnect(); 3495 } 3496 } 3497 } 3498 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 3499 } 3500 } 3501 3502 private class InternalHandler extends Handler { 3503 public InternalHandler(Looper looper) { 3504 super(looper); 3505 } 3506 3507 @Override 3508 public void handleMessage(Message msg) { 3509 NetworkInfo info; 3510 switch (msg.what) { 3511 case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: 3512 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 3513 String causedBy = null; 3514 synchronized (ConnectivityService.this) { 3515 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 3516 mNetTransitionWakeLock.isHeld()) { 3517 mNetTransitionWakeLock.release(); 3518 causedBy = mNetTransitionWakeLockCausedBy; 3519 } else { 3520 break; 3521 } 3522 } 3523 if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { 3524 log("Failed to find a new network - expiring NetTransition Wakelock"); 3525 } else { 3526 log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + 3527 " cleared because we found a replacement network"); 3528 } 3529 break; 3530 } 3531 case EVENT_RESTORE_DEFAULT_NETWORK: { 3532 FeatureUser u = (FeatureUser)msg.obj; 3533 u.expire(); 3534 break; 3535 } 3536 case EVENT_INET_CONDITION_CHANGE: { 3537 int netType = msg.arg1; 3538 int condition = msg.arg2; 3539 handleInetConditionChange(netType, condition); 3540 break; 3541 } 3542 case EVENT_INET_CONDITION_HOLD_END: { 3543 int netType = msg.arg1; 3544 int sequence = msg.arg2; 3545 handleInetConditionHoldEnd(netType, sequence); 3546 break; 3547 } 3548 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 3549 handleDeprecatedGlobalHttpProxy(); 3550 break; 3551 } 3552 case EVENT_SET_DEPENDENCY_MET: { 3553 boolean met = (msg.arg1 == ENABLED); 3554 handleSetDependencyMet(msg.arg2, met); 3555 break; 3556 } 3557 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 3558 Intent intent = (Intent)msg.obj; 3559 sendStickyBroadcast(intent); 3560 break; 3561 } 3562 case EVENT_SET_POLICY_DATA_ENABLE: { 3563 final int networkType = msg.arg1; 3564 final boolean enabled = msg.arg2 == ENABLED; 3565 handleSetPolicyDataEnable(networkType, enabled); 3566 break; 3567 } 3568 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 3569 int tag = mEnableFailFastMobileDataTag.get(); 3570 if (msg.arg1 == tag) { 3571 MobileDataStateTracker mobileDst = 3572 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3573 if (mobileDst != null) { 3574 mobileDst.setEnableFailFastMobileData(msg.arg2); 3575 } 3576 } else { 3577 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 3578 + " != tag:" + tag); 3579 } 3580 break; 3581 } 3582 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 3583 handleNetworkSamplingTimeout(); 3584 break; 3585 } 3586 case EVENT_PROXY_HAS_CHANGED: { 3587 handleApplyDefaultProxy((ProxyInfo)msg.obj); 3588 break; 3589 } 3590 case EVENT_REGISTER_NETWORK_FACTORY: { 3591 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 3592 break; 3593 } 3594 case EVENT_UNREGISTER_NETWORK_FACTORY: { 3595 handleUnregisterNetworkFactory((Messenger)msg.obj); 3596 break; 3597 } 3598 case EVENT_REGISTER_NETWORK_AGENT: { 3599 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 3600 break; 3601 } 3602 case EVENT_REGISTER_NETWORK_REQUEST: 3603 case EVENT_REGISTER_NETWORK_LISTENER: { 3604 handleRegisterNetworkRequest(msg); 3605 break; 3606 } 3607 case EVENT_RELEASE_NETWORK_REQUEST: { 3608 handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); 3609 break; 3610 } 3611 } 3612 } 3613 } 3614 3615 // javadoc from interface 3616 public int tether(String iface) { 3617 enforceTetherChangePermission(); 3618 3619 if (isTetheringSupported()) { 3620 return mTethering.tether(iface); 3621 } else { 3622 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 3623 } 3624 } 3625 3626 // javadoc from interface 3627 public int untether(String iface) { 3628 enforceTetherChangePermission(); 3629 3630 if (isTetheringSupported()) { 3631 return mTethering.untether(iface); 3632 } else { 3633 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 3634 } 3635 } 3636 3637 // javadoc from interface 3638 public int getLastTetherError(String iface) { 3639 enforceTetherAccessPermission(); 3640 3641 if (isTetheringSupported()) { 3642 return mTethering.getLastTetherError(iface); 3643 } else { 3644 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 3645 } 3646 } 3647 3648 // TODO - proper iface API for selection by property, inspection, etc 3649 public String[] getTetherableUsbRegexs() { 3650 enforceTetherAccessPermission(); 3651 if (isTetheringSupported()) { 3652 return mTethering.getTetherableUsbRegexs(); 3653 } else { 3654 return new String[0]; 3655 } 3656 } 3657 3658 public String[] getTetherableWifiRegexs() { 3659 enforceTetherAccessPermission(); 3660 if (isTetheringSupported()) { 3661 return mTethering.getTetherableWifiRegexs(); 3662 } else { 3663 return new String[0]; 3664 } 3665 } 3666 3667 public String[] getTetherableBluetoothRegexs() { 3668 enforceTetherAccessPermission(); 3669 if (isTetheringSupported()) { 3670 return mTethering.getTetherableBluetoothRegexs(); 3671 } else { 3672 return new String[0]; 3673 } 3674 } 3675 3676 public int setUsbTethering(boolean enable) { 3677 enforceTetherChangePermission(); 3678 if (isTetheringSupported()) { 3679 return mTethering.setUsbTethering(enable); 3680 } else { 3681 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 3682 } 3683 } 3684 3685 // TODO - move iface listing, queries, etc to new module 3686 // javadoc from interface 3687 public String[] getTetherableIfaces() { 3688 enforceTetherAccessPermission(); 3689 return mTethering.getTetherableIfaces(); 3690 } 3691 3692 public String[] getTetheredIfaces() { 3693 enforceTetherAccessPermission(); 3694 return mTethering.getTetheredIfaces(); 3695 } 3696 3697 public String[] getTetheringErroredIfaces() { 3698 enforceTetherAccessPermission(); 3699 return mTethering.getErroredIfaces(); 3700 } 3701 3702 public String[] getTetheredDhcpRanges() { 3703 enforceConnectivityInternalPermission(); 3704 return mTethering.getTetheredDhcpRanges(); 3705 } 3706 3707 // if ro.tether.denied = true we default to no tethering 3708 // gservices could set the secure setting to 1 though to enable it on a build where it 3709 // had previously been turned off. 3710 public boolean isTetheringSupported() { 3711 enforceTetherAccessPermission(); 3712 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 3713 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 3714 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0) 3715 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); 3716 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 3717 mTethering.getTetherableWifiRegexs().length != 0 || 3718 mTethering.getTetherableBluetoothRegexs().length != 0) && 3719 mTethering.getUpstreamIfaceTypes().length != 0); 3720 } 3721 3722 // Called when we lose the default network and have no replacement yet. 3723 // This will automatically be cleared after X seconds or a new default network 3724 // becomes CONNECTED, whichever happens first. The timer is started by the 3725 // first caller and not restarted by subsequent callers. 3726 private void requestNetworkTransitionWakelock(String forWhom) { 3727 int serialNum = 0; 3728 synchronized (this) { 3729 if (mNetTransitionWakeLock.isHeld()) return; 3730 serialNum = ++mNetTransitionWakeLockSerialNumber; 3731 mNetTransitionWakeLock.acquire(); 3732 mNetTransitionWakeLockCausedBy = forWhom; 3733 } 3734 mHandler.sendMessageDelayed(mHandler.obtainMessage( 3735 EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), 3736 mNetTransitionWakeLockTimeout); 3737 return; 3738 } 3739 3740 // 100 percent is full good, 0 is full bad. 3741 public void reportInetCondition(int networkType, int percentage) { 3742 if (VDBG) log("reportNetworkCondition(" + networkType + ", " + percentage + ")"); 3743 mContext.enforceCallingOrSelfPermission( 3744 android.Manifest.permission.STATUS_BAR, 3745 "ConnectivityService"); 3746 3747 if (DBG) { 3748 int pid = getCallingPid(); 3749 int uid = getCallingUid(); 3750 String s = pid + "(" + uid + ") reports inet is " + 3751 (percentage > 50 ? "connected" : "disconnected") + " (" + percentage + ") on " + 3752 "network Type " + networkType + " at " + GregorianCalendar.getInstance().getTime(); 3753 mInetLog.add(s); 3754 while(mInetLog.size() > INET_CONDITION_LOG_MAX_SIZE) { 3755 mInetLog.remove(0); 3756 } 3757 } 3758 mHandler.sendMessage(mHandler.obtainMessage( 3759 EVENT_INET_CONDITION_CHANGE, networkType, percentage)); 3760 } 3761 3762 public void reportBadNetwork(Network network) { 3763 //TODO 3764 } 3765 3766 private void handleInetConditionChange(int netType, int condition) { 3767 if (mActiveDefaultNetwork == -1) { 3768 if (DBG) log("handleInetConditionChange: no active default network - ignore"); 3769 return; 3770 } 3771 if (mActiveDefaultNetwork != netType) { 3772 if (DBG) log("handleInetConditionChange: net=" + netType + 3773 " != default=" + mActiveDefaultNetwork + " - ignore"); 3774 return; 3775 } 3776 if (VDBG) { 3777 log("handleInetConditionChange: net=" + 3778 netType + ", condition=" + condition + 3779 ",mActiveDefaultNetwork=" + mActiveDefaultNetwork); 3780 } 3781 mDefaultInetCondition = condition; 3782 int delay; 3783 if (mInetConditionChangeInFlight == false) { 3784 if (VDBG) log("handleInetConditionChange: starting a change hold"); 3785 // setup a new hold to debounce this 3786 if (mDefaultInetCondition > 50) { 3787 delay = Settings.Global.getInt(mContext.getContentResolver(), 3788 Settings.Global.INET_CONDITION_DEBOUNCE_UP_DELAY, 500); 3789 } else { 3790 delay = Settings.Global.getInt(mContext.getContentResolver(), 3791 Settings.Global.INET_CONDITION_DEBOUNCE_DOWN_DELAY, 3000); 3792 } 3793 mInetConditionChangeInFlight = true; 3794 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_INET_CONDITION_HOLD_END, 3795 mActiveDefaultNetwork, mDefaultConnectionSequence), delay); 3796 } else { 3797 // we've set the new condition, when this hold ends that will get picked up 3798 if (VDBG) log("handleInetConditionChange: currently in hold - not setting new end evt"); 3799 } 3800 } 3801 3802 private void handleInetConditionHoldEnd(int netType, int sequence) { 3803 if (DBG) { 3804 log("handleInetConditionHoldEnd: net=" + netType + 3805 ", condition=" + mDefaultInetCondition + 3806 ", published condition=" + mDefaultInetConditionPublished); 3807 } 3808 mInetConditionChangeInFlight = false; 3809 3810 if (mActiveDefaultNetwork == -1) { 3811 if (DBG) log("handleInetConditionHoldEnd: no active default network - ignoring"); 3812 return; 3813 } 3814 if (mDefaultConnectionSequence != sequence) { 3815 if (DBG) log("handleInetConditionHoldEnd: event hold for obsolete network - ignoring"); 3816 return; 3817 } 3818 // TODO: Figure out why this optimization sometimes causes a 3819 // change in mDefaultInetCondition to be missed and the 3820 // UI to not be updated. 3821 //if (mDefaultInetConditionPublished == mDefaultInetCondition) { 3822 // if (DBG) log("no change in condition - aborting"); 3823 // return; 3824 //} 3825 NetworkInfo networkInfo = getNetworkInfoForType(mActiveDefaultNetwork); 3826 if (networkInfo.isConnected() == false) { 3827 if (DBG) log("handleInetConditionHoldEnd: default network not connected - ignoring"); 3828 return; 3829 } 3830 mDefaultInetConditionPublished = mDefaultInetCondition; 3831 sendInetConditionBroadcast(networkInfo); 3832 return; 3833 } 3834 3835 public ProxyInfo getProxy() { 3836 // this information is already available as a world read/writable jvm property 3837 // so this API change wouldn't have a benifit. It also breaks the passing 3838 // of proxy info to all the JVMs. 3839 // enforceAccessPermission(); 3840 synchronized (mProxyLock) { 3841 ProxyInfo ret = mGlobalProxy; 3842 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 3843 return ret; 3844 } 3845 } 3846 3847 public void setGlobalProxy(ProxyInfo proxyProperties) { 3848 enforceConnectivityInternalPermission(); 3849 3850 synchronized (mProxyLock) { 3851 if (proxyProperties == mGlobalProxy) return; 3852 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 3853 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 3854 3855 String host = ""; 3856 int port = 0; 3857 String exclList = ""; 3858 String pacFileUrl = ""; 3859 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 3860 (proxyProperties.getPacFileUrl() != null))) { 3861 if (!proxyProperties.isValid()) { 3862 if (DBG) 3863 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 3864 return; 3865 } 3866 mGlobalProxy = new ProxyInfo(proxyProperties); 3867 host = mGlobalProxy.getHost(); 3868 port = mGlobalProxy.getPort(); 3869 exclList = mGlobalProxy.getExclusionListAsString(); 3870 if (proxyProperties.getPacFileUrl() != null) { 3871 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 3872 } 3873 } else { 3874 mGlobalProxy = null; 3875 } 3876 ContentResolver res = mContext.getContentResolver(); 3877 final long token = Binder.clearCallingIdentity(); 3878 try { 3879 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 3880 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 3881 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 3882 exclList); 3883 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 3884 } finally { 3885 Binder.restoreCallingIdentity(token); 3886 } 3887 } 3888 3889 if (mGlobalProxy == null) { 3890 proxyProperties = mDefaultProxy; 3891 } 3892 sendProxyBroadcast(proxyProperties); 3893 } 3894 3895 private void loadGlobalProxy() { 3896 ContentResolver res = mContext.getContentResolver(); 3897 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 3898 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 3899 String exclList = Settings.Global.getString(res, 3900 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 3901 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 3902 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 3903 ProxyInfo proxyProperties; 3904 if (!TextUtils.isEmpty(pacFileUrl)) { 3905 proxyProperties = new ProxyInfo(pacFileUrl); 3906 } else { 3907 proxyProperties = new ProxyInfo(host, port, exclList); 3908 } 3909 if (!proxyProperties.isValid()) { 3910 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 3911 return; 3912 } 3913 3914 synchronized (mProxyLock) { 3915 mGlobalProxy = proxyProperties; 3916 } 3917 } 3918 } 3919 3920 public ProxyInfo getGlobalProxy() { 3921 // this information is already available as a world read/writable jvm property 3922 // so this API change wouldn't have a benifit. It also breaks the passing 3923 // of proxy info to all the JVMs. 3924 // enforceAccessPermission(); 3925 synchronized (mProxyLock) { 3926 return mGlobalProxy; 3927 } 3928 } 3929 3930 private void handleApplyDefaultProxy(ProxyInfo proxy) { 3931 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 3932 && (proxy.getPacFileUrl() == null)) { 3933 proxy = null; 3934 } 3935 synchronized (mProxyLock) { 3936 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 3937 if (mDefaultProxy == proxy) return; // catches repeated nulls 3938 if (proxy != null && !proxy.isValid()) { 3939 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 3940 return; 3941 } 3942 3943 // This call could be coming from the PacManager, containing the port of the local 3944 // proxy. If this new proxy matches the global proxy then copy this proxy to the 3945 // global (to get the correct local port), and send a broadcast. 3946 // TODO: Switch PacManager to have its own message to send back rather than 3947 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 3948 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 3949 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 3950 mGlobalProxy = proxy; 3951 sendProxyBroadcast(mGlobalProxy); 3952 return; 3953 } 3954 mDefaultProxy = proxy; 3955 3956 if (mGlobalProxy != null) return; 3957 if (!mDefaultProxyDisabled) { 3958 sendProxyBroadcast(proxy); 3959 } 3960 } 3961 } 3962 3963 private void handleDeprecatedGlobalHttpProxy() { 3964 String proxy = Settings.Global.getString(mContext.getContentResolver(), 3965 Settings.Global.HTTP_PROXY); 3966 if (!TextUtils.isEmpty(proxy)) { 3967 String data[] = proxy.split(":"); 3968 if (data.length == 0) { 3969 return; 3970 } 3971 3972 String proxyHost = data[0]; 3973 int proxyPort = 8080; 3974 if (data.length > 1) { 3975 try { 3976 proxyPort = Integer.parseInt(data[1]); 3977 } catch (NumberFormatException e) { 3978 return; 3979 } 3980 } 3981 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 3982 setGlobalProxy(p); 3983 } 3984 } 3985 3986 private void sendProxyBroadcast(ProxyInfo proxy) { 3987 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 3988 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 3989 if (DBG) log("sending Proxy Broadcast for " + proxy); 3990 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 3991 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 3992 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3993 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 3994 final long ident = Binder.clearCallingIdentity(); 3995 try { 3996 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 3997 } finally { 3998 Binder.restoreCallingIdentity(ident); 3999 } 4000 } 4001 4002 private static class SettingsObserver extends ContentObserver { 4003 private int mWhat; 4004 private Handler mHandler; 4005 SettingsObserver(Handler handler, int what) { 4006 super(handler); 4007 mHandler = handler; 4008 mWhat = what; 4009 } 4010 4011 void observe(Context context) { 4012 ContentResolver resolver = context.getContentResolver(); 4013 resolver.registerContentObserver(Settings.Global.getUriFor( 4014 Settings.Global.HTTP_PROXY), false, this); 4015 } 4016 4017 @Override 4018 public void onChange(boolean selfChange) { 4019 mHandler.obtainMessage(mWhat).sendToTarget(); 4020 } 4021 } 4022 4023 private static void log(String s) { 4024 Slog.d(TAG, s); 4025 } 4026 4027 private static void loge(String s) { 4028 Slog.e(TAG, s); 4029 } 4030 4031 int convertFeatureToNetworkType(int networkType, String feature) { 4032 int usedNetworkType = networkType; 4033 4034 if(networkType == ConnectivityManager.TYPE_MOBILE) { 4035 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 4036 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 4037 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 4038 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 4039 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 4040 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 4041 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 4042 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 4043 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 4044 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 4045 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 4046 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 4047 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 4048 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 4049 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 4050 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { 4051 usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; 4052 } else { 4053 Slog.e(TAG, "Can't match any mobile netTracker!"); 4054 } 4055 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 4056 if (TextUtils.equals(feature, "p2p")) { 4057 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 4058 } else { 4059 Slog.e(TAG, "Can't match any wifi netTracker!"); 4060 } 4061 } else { 4062 Slog.e(TAG, "Unexpected network type"); 4063 } 4064 return usedNetworkType; 4065 } 4066 4067 private static <T> T checkNotNull(T value, String message) { 4068 if (value == null) { 4069 throw new NullPointerException(message); 4070 } 4071 return value; 4072 } 4073 4074 /** 4075 * Prepare for a VPN application. This method is used by VpnDialogs 4076 * and not available in ConnectivityManager. Permissions are checked 4077 * in Vpn class. 4078 * @hide 4079 */ 4080 @Override 4081 public boolean prepareVpn(String oldPackage, String newPackage) { 4082 throwIfLockdownEnabled(); 4083 int user = UserHandle.getUserId(Binder.getCallingUid()); 4084 synchronized(mVpns) { 4085 return mVpns.get(user).prepare(oldPackage, newPackage); 4086 } 4087 } 4088 4089 @Override 4090 public void markSocketAsUser(ParcelFileDescriptor socket, int uid) { 4091 enforceMarkNetworkSocketPermission(); 4092 final long token = Binder.clearCallingIdentity(); 4093 try { 4094 int mark = mNetd.getMarkForUid(uid); 4095 // Clear the mark on the socket if no mark is needed to prevent socket reuse issues 4096 if (mark == -1) { 4097 mark = 0; 4098 } 4099 NetworkUtils.markSocket(socket.getFd(), mark); 4100 } catch (RemoteException e) { 4101 } finally { 4102 Binder.restoreCallingIdentity(token); 4103 } 4104 } 4105 4106 /** 4107 * Configure a TUN interface and return its file descriptor. Parameters 4108 * are encoded and opaque to this class. This method is used by VpnBuilder 4109 * and not available in ConnectivityManager. Permissions are checked in 4110 * Vpn class. 4111 * @hide 4112 */ 4113 @Override 4114 public ParcelFileDescriptor establishVpn(VpnConfig config) { 4115 throwIfLockdownEnabled(); 4116 int user = UserHandle.getUserId(Binder.getCallingUid()); 4117 synchronized(mVpns) { 4118 return mVpns.get(user).establish(config); 4119 } 4120 } 4121 4122 /** 4123 * Start legacy VPN, controlling native daemons as needed. Creates a 4124 * secondary thread to perform connection work, returning quickly. 4125 */ 4126 @Override 4127 public void startLegacyVpn(VpnProfile profile) { 4128 throwIfLockdownEnabled(); 4129 final LinkProperties egress = getActiveLinkProperties(); 4130 if (egress == null) { 4131 throw new IllegalStateException("Missing active network connection"); 4132 } 4133 int user = UserHandle.getUserId(Binder.getCallingUid()); 4134 synchronized(mVpns) { 4135 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 4136 } 4137 } 4138 4139 /** 4140 * Return the information of the ongoing legacy VPN. This method is used 4141 * by VpnSettings and not available in ConnectivityManager. Permissions 4142 * are checked in Vpn class. 4143 * @hide 4144 */ 4145 @Override 4146 public LegacyVpnInfo getLegacyVpnInfo() { 4147 throwIfLockdownEnabled(); 4148 int user = UserHandle.getUserId(Binder.getCallingUid()); 4149 synchronized(mVpns) { 4150 return mVpns.get(user).getLegacyVpnInfo(); 4151 } 4152 } 4153 4154 /** 4155 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 4156 * not available in ConnectivityManager. 4157 * Permissions are checked in Vpn class. 4158 * @hide 4159 */ 4160 @Override 4161 public VpnConfig getVpnConfig() { 4162 int user = UserHandle.getUserId(Binder.getCallingUid()); 4163 synchronized(mVpns) { 4164 return mVpns.get(user).getVpnConfig(); 4165 } 4166 } 4167 4168 @Override 4169 public boolean updateLockdownVpn() { 4170 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 4171 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 4172 return false; 4173 } 4174 4175 // Tear down existing lockdown if profile was removed 4176 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 4177 if (mLockdownEnabled) { 4178 if (!mKeyStore.isUnlocked()) { 4179 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 4180 return false; 4181 } 4182 4183 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 4184 final VpnProfile profile = VpnProfile.decode( 4185 profileName, mKeyStore.get(Credentials.VPN + profileName)); 4186 int user = UserHandle.getUserId(Binder.getCallingUid()); 4187 synchronized(mVpns) { 4188 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 4189 profile)); 4190 } 4191 } else { 4192 setLockdownTracker(null); 4193 } 4194 4195 return true; 4196 } 4197 4198 /** 4199 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 4200 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 4201 */ 4202 private void setLockdownTracker(LockdownVpnTracker tracker) { 4203 // Shutdown any existing tracker 4204 final LockdownVpnTracker existing = mLockdownTracker; 4205 mLockdownTracker = null; 4206 if (existing != null) { 4207 existing.shutdown(); 4208 } 4209 4210 try { 4211 if (tracker != null) { 4212 mNetd.setFirewallEnabled(true); 4213 mNetd.setFirewallInterfaceRule("lo", true); 4214 mLockdownTracker = tracker; 4215 mLockdownTracker.init(); 4216 } else { 4217 mNetd.setFirewallEnabled(false); 4218 } 4219 } catch (RemoteException e) { 4220 // ignored; NMS lives inside system_server 4221 } 4222 } 4223 4224 private void throwIfLockdownEnabled() { 4225 if (mLockdownEnabled) { 4226 throw new IllegalStateException("Unavailable in lockdown mode"); 4227 } 4228 } 4229 4230 public void supplyMessenger(int networkType, Messenger messenger) { 4231 enforceConnectivityInternalPermission(); 4232 4233 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 4234 mNetTrackers[networkType].supplyMessenger(messenger); 4235 } 4236 } 4237 4238 public int findConnectionTypeForIface(String iface) { 4239 enforceConnectivityInternalPermission(); 4240 4241 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 4242 for (NetworkStateTracker tracker : mNetTrackers) { 4243 if (tracker != null) { 4244 LinkProperties lp = tracker.getLinkProperties(); 4245 if (lp != null && iface.equals(lp.getInterfaceName())) { 4246 return tracker.getNetworkInfo().getType(); 4247 } 4248 } 4249 } 4250 return ConnectivityManager.TYPE_NONE; 4251 } 4252 4253 /** 4254 * Have mobile data fail fast if enabled. 4255 * 4256 * @param enabled DctConstants.ENABLED/DISABLED 4257 */ 4258 private void setEnableFailFastMobileData(int enabled) { 4259 int tag; 4260 4261 if (enabled == DctConstants.ENABLED) { 4262 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 4263 } else { 4264 tag = mEnableFailFastMobileDataTag.get(); 4265 } 4266 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 4267 enabled)); 4268 } 4269 4270 private boolean isMobileDataStateTrackerReady() { 4271 MobileDataStateTracker mdst = 4272 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 4273 return (mdst != null) && (mdst.isReady()); 4274 } 4275 4276 /** 4277 * The ResultReceiver resultCode for checkMobileProvisioning (CMP_RESULT_CODE) 4278 */ 4279 4280 /** 4281 * No connection was possible to the network. 4282 * This is NOT a warm sim. 4283 */ 4284 private static final int CMP_RESULT_CODE_NO_CONNECTION = 0; 4285 4286 /** 4287 * A connection was made to the internet, all is well. 4288 * This is NOT a warm sim. 4289 */ 4290 private static final int CMP_RESULT_CODE_CONNECTABLE = 1; 4291 4292 /** 4293 * A connection was made but no dns server was available to resolve a name to address. 4294 * This is NOT a warm sim since provisioning network is supported. 4295 */ 4296 private static final int CMP_RESULT_CODE_NO_DNS = 2; 4297 4298 /** 4299 * A connection was made but could not open a TCP connection. 4300 * This is NOT a warm sim since provisioning network is supported. 4301 */ 4302 private static final int CMP_RESULT_CODE_NO_TCP_CONNECTION = 3; 4303 4304 /** 4305 * A connection was made but there was a redirection, we appear to be in walled garden. 4306 * This is an indication of a warm sim on a mobile network such as T-Mobile. 4307 */ 4308 private static final int CMP_RESULT_CODE_REDIRECTED = 4; 4309 4310 /** 4311 * The mobile network is a provisioning network. 4312 * This is an indication of a warm sim on a mobile network such as AT&T. 4313 */ 4314 private static final int CMP_RESULT_CODE_PROVISIONING_NETWORK = 5; 4315 4316 /** 4317 * The mobile network is provisioning 4318 */ 4319 private static final int CMP_RESULT_CODE_IS_PROVISIONING = 6; 4320 4321 private AtomicBoolean mIsProvisioningNetwork = new AtomicBoolean(false); 4322 private AtomicBoolean mIsStartingProvisioning = new AtomicBoolean(false); 4323 4324 private AtomicBoolean mIsCheckingMobileProvisioning = new AtomicBoolean(false); 4325 4326 @Override 4327 public int checkMobileProvisioning(int suggestedTimeOutMs) { 4328 int timeOutMs = -1; 4329 if (DBG) log("checkMobileProvisioning: E suggestedTimeOutMs=" + suggestedTimeOutMs); 4330 enforceConnectivityInternalPermission(); 4331 4332 final long token = Binder.clearCallingIdentity(); 4333 try { 4334 timeOutMs = suggestedTimeOutMs; 4335 if (suggestedTimeOutMs > CheckMp.MAX_TIMEOUT_MS) { 4336 timeOutMs = CheckMp.MAX_TIMEOUT_MS; 4337 } 4338 4339 // Check that mobile networks are supported 4340 if (!isNetworkSupported(ConnectivityManager.TYPE_MOBILE) 4341 || !isNetworkSupported(ConnectivityManager.TYPE_MOBILE_HIPRI)) { 4342 if (DBG) log("checkMobileProvisioning: X no mobile network"); 4343 return timeOutMs; 4344 } 4345 4346 // If we're already checking don't do it again 4347 // TODO: Add a queue of results... 4348 if (mIsCheckingMobileProvisioning.getAndSet(true)) { 4349 if (DBG) log("checkMobileProvisioning: X already checking ignore for the moment"); 4350 return timeOutMs; 4351 } 4352 4353 // Start off with mobile notification off 4354 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 4355 4356 CheckMp checkMp = new CheckMp(mContext, this); 4357 CheckMp.CallBack cb = new CheckMp.CallBack() { 4358 @Override 4359 void onComplete(Integer result) { 4360 if (DBG) log("CheckMp.onComplete: result=" + result); 4361 NetworkInfo ni = 4362 mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI].getNetworkInfo(); 4363 switch(result) { 4364 case CMP_RESULT_CODE_CONNECTABLE: 4365 case CMP_RESULT_CODE_NO_CONNECTION: 4366 case CMP_RESULT_CODE_NO_DNS: 4367 case CMP_RESULT_CODE_NO_TCP_CONNECTION: { 4368 if (DBG) log("CheckMp.onComplete: ignore, connected or no connection"); 4369 break; 4370 } 4371 case CMP_RESULT_CODE_REDIRECTED: { 4372 if (DBG) log("CheckMp.onComplete: warm sim"); 4373 String url = getMobileProvisioningUrl(); 4374 if (TextUtils.isEmpty(url)) { 4375 url = getMobileRedirectedProvisioningUrl(); 4376 } 4377 if (TextUtils.isEmpty(url) == false) { 4378 if (DBG) log("CheckMp.onComplete: warm (redirected), url=" + url); 4379 setProvNotificationVisible(true, 4380 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 4381 url); 4382 } else { 4383 if (DBG) log("CheckMp.onComplete: warm (redirected), no url"); 4384 } 4385 break; 4386 } 4387 case CMP_RESULT_CODE_PROVISIONING_NETWORK: { 4388 String url = getMobileProvisioningUrl(); 4389 if (TextUtils.isEmpty(url) == false) { 4390 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), url=" + url); 4391 setProvNotificationVisible(true, 4392 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 4393 url); 4394 // Mark that we've got a provisioning network and 4395 // Disable Mobile Data until user actually starts provisioning. 4396 mIsProvisioningNetwork.set(true); 4397 MobileDataStateTracker mdst = (MobileDataStateTracker) 4398 mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 4399 4400 // Disable radio until user starts provisioning 4401 mdst.setRadio(false); 4402 } else { 4403 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), no url"); 4404 } 4405 break; 4406 } 4407 case CMP_RESULT_CODE_IS_PROVISIONING: { 4408 // FIXME: Need to know when provisioning is done. Probably we can 4409 // check the completion status if successful we're done if we 4410 // "timedout" or still connected to provisioning APN turn off data? 4411 if (DBG) log("CheckMp.onComplete: provisioning started"); 4412 mIsStartingProvisioning.set(false); 4413 break; 4414 } 4415 default: { 4416 loge("CheckMp.onComplete: ignore unexpected result=" + result); 4417 break; 4418 } 4419 } 4420 mIsCheckingMobileProvisioning.set(false); 4421 } 4422 }; 4423 CheckMp.Params params = 4424 new CheckMp.Params(checkMp.getDefaultUrl(), timeOutMs, cb); 4425 if (DBG) log("checkMobileProvisioning: params=" + params); 4426 // TODO: Reenable when calls to the now defunct 4427 // MobileDataStateTracker.isProvisioningNetwork() are removed. 4428 // This code should be moved to the Telephony code. 4429 // checkMp.execute(params); 4430 } finally { 4431 Binder.restoreCallingIdentity(token); 4432 if (DBG) log("checkMobileProvisioning: X"); 4433 } 4434 return timeOutMs; 4435 } 4436 4437 static class CheckMp extends 4438 AsyncTask<CheckMp.Params, Void, Integer> { 4439 private static final String CHECKMP_TAG = "CheckMp"; 4440 4441 // adb shell setprop persist.checkmp.testfailures 1 to enable testing failures 4442 private static boolean mTestingFailures; 4443 4444 // Choosing 4 loops as half of them will use HTTPS and the other half HTTP 4445 private static final int MAX_LOOPS = 4; 4446 4447 // Number of milli-seconds to complete all of the retires 4448 public static final int MAX_TIMEOUT_MS = 60000; 4449 4450 // The socket should retry only 5 seconds, the default is longer 4451 private static final int SOCKET_TIMEOUT_MS = 5000; 4452 4453 // Sleep time for network errors 4454 private static final int NET_ERROR_SLEEP_SEC = 3; 4455 4456 // Sleep time for network route establishment 4457 private static final int NET_ROUTE_ESTABLISHMENT_SLEEP_SEC = 3; 4458 4459 // Short sleep time for polling :( 4460 private static final int POLLING_SLEEP_SEC = 1; 4461 4462 private Context mContext; 4463 private ConnectivityService mCs; 4464 private TelephonyManager mTm; 4465 private Params mParams; 4466 4467 /** 4468 * Parameters for AsyncTask.execute 4469 */ 4470 static class Params { 4471 private String mUrl; 4472 private long mTimeOutMs; 4473 private CallBack mCb; 4474 4475 Params(String url, long timeOutMs, CallBack cb) { 4476 mUrl = url; 4477 mTimeOutMs = timeOutMs; 4478 mCb = cb; 4479 } 4480 4481 @Override 4482 public String toString() { 4483 return "{" + " url=" + mUrl + " mTimeOutMs=" + mTimeOutMs + " mCb=" + mCb + "}"; 4484 } 4485 } 4486 4487 // As explained to me by Brian Carlstrom and Kenny Root, Certificates can be 4488 // issued by name or ip address, for Google its by name so when we construct 4489 // this HostnameVerifier we'll pass the original Uri and use it to verify 4490 // the host. If the host name in the original uril fails we'll test the 4491 // hostname parameter just incase things change. 4492 static class CheckMpHostnameVerifier implements HostnameVerifier { 4493 Uri mOrgUri; 4494 4495 CheckMpHostnameVerifier(Uri orgUri) { 4496 mOrgUri = orgUri; 4497 } 4498 4499 @Override 4500 public boolean verify(String hostname, SSLSession session) { 4501 HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier(); 4502 String orgUriHost = mOrgUri.getHost(); 4503 boolean retVal = hv.verify(orgUriHost, session) || hv.verify(hostname, session); 4504 if (DBG) { 4505 log("isMobileOk: hostnameVerify retVal=" + retVal + " hostname=" + hostname 4506 + " orgUriHost=" + orgUriHost); 4507 } 4508 return retVal; 4509 } 4510 } 4511 4512 /** 4513 * The call back object passed in Params. onComplete will be called 4514 * on the main thread. 4515 */ 4516 abstract static class CallBack { 4517 // Called on the main thread. 4518 abstract void onComplete(Integer result); 4519 } 4520 4521 public CheckMp(Context context, ConnectivityService cs) { 4522 if (Build.IS_DEBUGGABLE) { 4523 mTestingFailures = 4524 SystemProperties.getInt("persist.checkmp.testfailures", 0) == 1; 4525 } else { 4526 mTestingFailures = false; 4527 } 4528 4529 mContext = context; 4530 mCs = cs; 4531 4532 // Setup access to TelephonyService we'll be using. 4533 mTm = (TelephonyManager) mContext.getSystemService( 4534 Context.TELEPHONY_SERVICE); 4535 } 4536 4537 /** 4538 * Get the default url to use for the test. 4539 */ 4540 public String getDefaultUrl() { 4541 // See http://go/clientsdns for usage approval 4542 String server = Settings.Global.getString(mContext.getContentResolver(), 4543 Settings.Global.CAPTIVE_PORTAL_SERVER); 4544 if (server == null) { 4545 server = "clients3.google.com"; 4546 } 4547 return "http://" + server + "/generate_204"; 4548 } 4549 4550 /** 4551 * Detect if its possible to connect to the http url. DNS based detection techniques 4552 * do not work at all hotspots. The best way to check is to perform a request to 4553 * a known address that fetches the data we expect. 4554 */ 4555 private synchronized Integer isMobileOk(Params params) { 4556 Integer result = CMP_RESULT_CODE_NO_CONNECTION; 4557 Uri orgUri = Uri.parse(params.mUrl); 4558 Random rand = new Random(); 4559 mParams = params; 4560 4561 if (mCs.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false) { 4562 result = CMP_RESULT_CODE_NO_CONNECTION; 4563 log("isMobileOk: X not mobile capable result=" + result); 4564 return result; 4565 } 4566 4567 if (mCs.mIsStartingProvisioning.get()) { 4568 result = CMP_RESULT_CODE_IS_PROVISIONING; 4569 log("isMobileOk: X is provisioning result=" + result); 4570 return result; 4571 } 4572 4573 // See if we've already determined we've got a provisioning connection, 4574 // if so we don't need to do anything active. 4575 MobileDataStateTracker mdstDefault = (MobileDataStateTracker) 4576 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 4577 boolean isDefaultProvisioning = mdstDefault.isProvisioningNetwork(); 4578 log("isMobileOk: isDefaultProvisioning=" + isDefaultProvisioning); 4579 4580 MobileDataStateTracker mdstHipri = (MobileDataStateTracker) 4581 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 4582 boolean isHipriProvisioning = mdstHipri.isProvisioningNetwork(); 4583 log("isMobileOk: isHipriProvisioning=" + isHipriProvisioning); 4584 4585 if (isDefaultProvisioning || isHipriProvisioning) { 4586 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 4587 log("isMobileOk: X default || hipri is provisioning result=" + result); 4588 return result; 4589 } 4590 4591 try { 4592 // Continue trying to connect until time has run out 4593 long endTime = SystemClock.elapsedRealtime() + params.mTimeOutMs; 4594 4595 if (!mCs.isMobileDataStateTrackerReady()) { 4596 // Wait for MobileDataStateTracker to be ready. 4597 if (DBG) log("isMobileOk: mdst is not ready"); 4598 while(SystemClock.elapsedRealtime() < endTime) { 4599 if (mCs.isMobileDataStateTrackerReady()) { 4600 // Enable fail fast as we'll do retries here and use a 4601 // hipri connection so the default connection stays active. 4602 if (DBG) log("isMobileOk: mdst ready, enable fail fast of mobile data"); 4603 mCs.setEnableFailFastMobileData(DctConstants.ENABLED); 4604 break; 4605 } 4606 sleep(POLLING_SLEEP_SEC); 4607 } 4608 } 4609 4610 log("isMobileOk: start hipri url=" + params.mUrl); 4611 4612 // First wait until we can start using hipri 4613 Binder binder = new Binder(); 4614 while(SystemClock.elapsedRealtime() < endTime) { 4615 int ret = mCs.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 4616 Phone.FEATURE_ENABLE_HIPRI, binder); 4617 if ((ret == PhoneConstants.APN_ALREADY_ACTIVE) 4618 || (ret == PhoneConstants.APN_REQUEST_STARTED)) { 4619 log("isMobileOk: hipri started"); 4620 break; 4621 } 4622 if (VDBG) log("isMobileOk: hipri not started yet"); 4623 result = CMP_RESULT_CODE_NO_CONNECTION; 4624 sleep(POLLING_SLEEP_SEC); 4625 } 4626 4627 // Continue trying to connect until time has run out 4628 while(SystemClock.elapsedRealtime() < endTime) { 4629 try { 4630 // Wait for hipri to connect. 4631 // TODO: Don't poll and handle situation where hipri fails 4632 // because default is retrying. See b/9569540 4633 NetworkInfo.State state = mCs 4634 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 4635 if (state != NetworkInfo.State.CONNECTED) { 4636 if (true/*VDBG*/) { 4637 log("isMobileOk: not connected ni=" + 4638 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 4639 } 4640 sleep(POLLING_SLEEP_SEC); 4641 result = CMP_RESULT_CODE_NO_CONNECTION; 4642 continue; 4643 } 4644 4645 // Hipri has started check if this is a provisioning url 4646 MobileDataStateTracker mdst = (MobileDataStateTracker) 4647 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 4648 if (mdst.isProvisioningNetwork()) { 4649 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 4650 if (DBG) log("isMobileOk: X isProvisioningNetwork result=" + result); 4651 return result; 4652 } else { 4653 if (DBG) log("isMobileOk: isProvisioningNetwork is false, continue"); 4654 } 4655 4656 // Get of the addresses associated with the url host. We need to use the 4657 // address otherwise HttpURLConnection object will use the name to get 4658 // the addresses and will try every address but that will bypass the 4659 // route to host we setup and the connection could succeed as the default 4660 // interface might be connected to the internet via wifi or other interface. 4661 InetAddress[] addresses; 4662 try { 4663 addresses = InetAddress.getAllByName(orgUri.getHost()); 4664 } catch (UnknownHostException e) { 4665 result = CMP_RESULT_CODE_NO_DNS; 4666 log("isMobileOk: X UnknownHostException result=" + result); 4667 return result; 4668 } 4669 log("isMobileOk: addresses=" + inetAddressesToString(addresses)); 4670 4671 // Get the type of addresses supported by this link 4672 LinkProperties lp = mCs.getLinkPropertiesForTypeInternal( 4673 ConnectivityManager.TYPE_MOBILE_HIPRI); 4674 boolean linkHasIpv4 = lp.hasIPv4Address(); 4675 boolean linkHasIpv6 = lp.hasGlobalIPv6Address(); 4676 log("isMobileOk: linkHasIpv4=" + linkHasIpv4 4677 + " linkHasIpv6=" + linkHasIpv6); 4678 4679 final ArrayList<InetAddress> validAddresses = 4680 new ArrayList<InetAddress>(addresses.length); 4681 4682 for (InetAddress addr : addresses) { 4683 if (((addr instanceof Inet4Address) && linkHasIpv4) || 4684 ((addr instanceof Inet6Address) && linkHasIpv6)) { 4685 validAddresses.add(addr); 4686 } 4687 } 4688 4689 if (validAddresses.size() == 0) { 4690 return CMP_RESULT_CODE_NO_CONNECTION; 4691 } 4692 4693 int addrTried = 0; 4694 while (true) { 4695 // Loop through at most MAX_LOOPS valid addresses or until 4696 // we run out of time 4697 if (addrTried++ >= MAX_LOOPS) { 4698 log("isMobileOk: too many loops tried - giving up"); 4699 break; 4700 } 4701 if (SystemClock.elapsedRealtime() >= endTime) { 4702 log("isMobileOk: spend too much time - giving up"); 4703 break; 4704 } 4705 4706 InetAddress hostAddr = validAddresses.get(rand.nextInt( 4707 validAddresses.size())); 4708 4709 // Make a route to host so we check the specific interface. 4710 if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI, 4711 hostAddr.getAddress(), null)) { 4712 // Wait a short time to be sure the route is established ?? 4713 log("isMobileOk:" 4714 + " wait to establish route to hostAddr=" + hostAddr); 4715 sleep(NET_ROUTE_ESTABLISHMENT_SLEEP_SEC); 4716 } else { 4717 log("isMobileOk:" 4718 + " could not establish route to hostAddr=" + hostAddr); 4719 // Wait a short time before the next attempt 4720 sleep(NET_ERROR_SLEEP_SEC); 4721 continue; 4722 } 4723 4724 // Rewrite the url to have numeric address to use the specific route 4725 // using http for half the attempts and https for the other half. 4726 // Doing https first and http second as on a redirected walled garden 4727 // such as t-mobile uses we get a SocketTimeoutException: "SSL 4728 // handshake timed out" which we declare as 4729 // CMP_RESULT_CODE_NO_TCP_CONNECTION. We could change this, but by 4730 // having http second we will be using logic used for some time. 4731 URL newUrl; 4732 String scheme = (addrTried <= (MAX_LOOPS/2)) ? "https" : "http"; 4733 newUrl = new URL(scheme, hostAddr.getHostAddress(), 4734 orgUri.getPath()); 4735 log("isMobileOk: newUrl=" + newUrl); 4736 4737 HttpURLConnection urlConn = null; 4738 try { 4739 // Open the connection set the request headers and get the response 4740 urlConn = (HttpURLConnection)newUrl.openConnection( 4741 java.net.Proxy.NO_PROXY); 4742 if (scheme.equals("https")) { 4743 ((HttpsURLConnection)urlConn).setHostnameVerifier( 4744 new CheckMpHostnameVerifier(orgUri)); 4745 } 4746 urlConn.setInstanceFollowRedirects(false); 4747 urlConn.setConnectTimeout(SOCKET_TIMEOUT_MS); 4748 urlConn.setReadTimeout(SOCKET_TIMEOUT_MS); 4749 urlConn.setUseCaches(false); 4750 urlConn.setAllowUserInteraction(false); 4751 // Set the "Connection" to "Close" as by default "Keep-Alive" 4752 // is used which is useless in this case. 4753 urlConn.setRequestProperty("Connection", "close"); 4754 int responseCode = urlConn.getResponseCode(); 4755 4756 // For debug display the headers 4757 Map<String, List<String>> headers = urlConn.getHeaderFields(); 4758 log("isMobileOk: headers=" + headers); 4759 4760 // Close the connection 4761 urlConn.disconnect(); 4762 urlConn = null; 4763 4764 if (mTestingFailures) { 4765 // Pretend no connection, this tests using http and https 4766 result = CMP_RESULT_CODE_NO_CONNECTION; 4767 log("isMobileOk: TESTING_FAILURES, pretend no connction"); 4768 continue; 4769 } 4770 4771 if (responseCode == 204) { 4772 // Return 4773 result = CMP_RESULT_CODE_CONNECTABLE; 4774 log("isMobileOk: X got expected responseCode=" + responseCode 4775 + " result=" + result); 4776 return result; 4777 } else { 4778 // Retry to be sure this was redirected, we've gotten 4779 // occasions where a server returned 200 even though 4780 // the device didn't have a "warm" sim. 4781 log("isMobileOk: not expected responseCode=" + responseCode); 4782 // TODO - it would be nice in the single-address case to do 4783 // another DNS resolve here, but flushing the cache is a bit 4784 // heavy-handed. 4785 result = CMP_RESULT_CODE_REDIRECTED; 4786 } 4787 } catch (Exception e) { 4788 log("isMobileOk: HttpURLConnection Exception" + e); 4789 result = CMP_RESULT_CODE_NO_TCP_CONNECTION; 4790 if (urlConn != null) { 4791 urlConn.disconnect(); 4792 urlConn = null; 4793 } 4794 sleep(NET_ERROR_SLEEP_SEC); 4795 continue; 4796 } 4797 } 4798 log("isMobileOk: X loops|timed out result=" + result); 4799 return result; 4800 } catch (Exception e) { 4801 log("isMobileOk: Exception e=" + e); 4802 continue; 4803 } 4804 } 4805 log("isMobileOk: timed out"); 4806 } finally { 4807 log("isMobileOk: F stop hipri"); 4808 mCs.setEnableFailFastMobileData(DctConstants.DISABLED); 4809 mCs.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 4810 Phone.FEATURE_ENABLE_HIPRI); 4811 4812 // Wait for hipri to disconnect. 4813 long endTime = SystemClock.elapsedRealtime() + 5000; 4814 4815 while(SystemClock.elapsedRealtime() < endTime) { 4816 NetworkInfo.State state = mCs 4817 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 4818 if (state != NetworkInfo.State.DISCONNECTED) { 4819 if (VDBG) { 4820 log("isMobileOk: connected ni=" + 4821 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 4822 } 4823 sleep(POLLING_SLEEP_SEC); 4824 continue; 4825 } 4826 } 4827 4828 log("isMobileOk: X result=" + result); 4829 } 4830 return result; 4831 } 4832 4833 @Override 4834 protected Integer doInBackground(Params... params) { 4835 return isMobileOk(params[0]); 4836 } 4837 4838 @Override 4839 protected void onPostExecute(Integer result) { 4840 log("onPostExecute: result=" + result); 4841 if ((mParams != null) && (mParams.mCb != null)) { 4842 mParams.mCb.onComplete(result); 4843 } 4844 } 4845 4846 private String inetAddressesToString(InetAddress[] addresses) { 4847 StringBuffer sb = new StringBuffer(); 4848 boolean firstTime = true; 4849 for(InetAddress addr : addresses) { 4850 if (firstTime) { 4851 firstTime = false; 4852 } else { 4853 sb.append(","); 4854 } 4855 sb.append(addr); 4856 } 4857 return sb.toString(); 4858 } 4859 4860 private void printNetworkInfo() { 4861 boolean hasIccCard = mTm.hasIccCard(); 4862 int simState = mTm.getSimState(); 4863 log("hasIccCard=" + hasIccCard 4864 + " simState=" + simState); 4865 NetworkInfo[] ni = mCs.getAllNetworkInfo(); 4866 if (ni != null) { 4867 log("ni.length=" + ni.length); 4868 for (NetworkInfo netInfo: ni) { 4869 log("netInfo=" + netInfo.toString()); 4870 } 4871 } else { 4872 log("no network info ni=null"); 4873 } 4874 } 4875 4876 /** 4877 * Sleep for a few seconds then return. 4878 * @param seconds 4879 */ 4880 private static void sleep(int seconds) { 4881 long stopTime = System.nanoTime() + (seconds * 1000000000); 4882 long sleepTime; 4883 while ((sleepTime = stopTime - System.nanoTime()) > 0) { 4884 try { 4885 Thread.sleep(sleepTime / 1000000); 4886 } catch (InterruptedException ignored) { 4887 } 4888 } 4889 } 4890 4891 private static void log(String s) { 4892 Slog.d(ConnectivityService.TAG, "[" + CHECKMP_TAG + "] " + s); 4893 } 4894 } 4895 4896 // TODO: Move to ConnectivityManager and make public? 4897 private static final String CONNECTED_TO_PROVISIONING_NETWORK_ACTION = 4898 "com.android.server.connectivityservice.CONNECTED_TO_PROVISIONING_NETWORK_ACTION"; 4899 4900 private BroadcastReceiver mProvisioningReceiver = new BroadcastReceiver() { 4901 @Override 4902 public void onReceive(Context context, Intent intent) { 4903 if (intent.getAction().equals(CONNECTED_TO_PROVISIONING_NETWORK_ACTION)) { 4904 handleMobileProvisioningAction(intent.getStringExtra("EXTRA_URL")); 4905 } 4906 } 4907 }; 4908 4909 private void handleMobileProvisioningAction(String url) { 4910 // Mark notification as not visible 4911 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 4912 4913 // Check airplane mode 4914 boolean isAirplaneModeOn = Settings.System.getInt(mContext.getContentResolver(), 4915 Settings.Global.AIRPLANE_MODE_ON, 0) == 1; 4916 // If provisioning network and not in airplane mode handle as a special case, 4917 // otherwise launch browser with the intent directly. 4918 if (mIsProvisioningNetwork.get() && !isAirplaneModeOn) { 4919 if (DBG) log("handleMobileProvisioningAction: on prov network enable then launch"); 4920 mIsProvisioningNetwork.set(false); 4921// mIsStartingProvisioning.set(true); 4922// MobileDataStateTracker mdst = (MobileDataStateTracker) 4923// mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 4924 // Radio was disabled on CMP_RESULT_CODE_PROVISIONING_NETWORK, enable it here 4925// mdst.setRadio(true); 4926// mdst.setEnableFailFastMobileData(DctConstants.ENABLED); 4927// mdst.enableMobileProvisioning(url); 4928 } else { 4929 if (DBG) log("handleMobileProvisioningAction: not prov network"); 4930 mIsProvisioningNetwork.set(false); 4931 // Check for apps that can handle provisioning first 4932 Intent provisioningIntent = new Intent(TelephonyIntents.ACTION_CARRIER_SETUP); 4933 provisioningIntent.addCategory(TelephonyIntents.CATEGORY_MCCMNC_PREFIX 4934 + mTelephonyManager.getSimOperator()); 4935 if (mContext.getPackageManager().resolveActivity(provisioningIntent, 0 /* flags */) 4936 != null) { 4937 provisioningIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 4938 Intent.FLAG_ACTIVITY_NEW_TASK); 4939 mContext.startActivity(provisioningIntent); 4940 } else { 4941 // If no apps exist, use standard URL ACTION_VIEW method 4942 Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, 4943 Intent.CATEGORY_APP_BROWSER); 4944 newIntent.setData(Uri.parse(url)); 4945 newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 4946 Intent.FLAG_ACTIVITY_NEW_TASK); 4947 try { 4948 mContext.startActivity(newIntent); 4949 } catch (ActivityNotFoundException e) { 4950 loge("handleMobileProvisioningAction: startActivity failed" + e); 4951 } 4952 } 4953 } 4954 } 4955 4956 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 4957 private volatile boolean mIsNotificationVisible = false; 4958 4959 private void setProvNotificationVisible(boolean visible, int networkType, String extraInfo, 4960 String url) { 4961 if (DBG) { 4962 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 4963 + " extraInfo=" + extraInfo + " url=" + url); 4964 } 4965 Intent intent = null; 4966 PendingIntent pendingIntent = null; 4967 if (visible) { 4968 switch (networkType) { 4969 case ConnectivityManager.TYPE_WIFI: 4970 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 4971 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 4972 Intent.FLAG_ACTIVITY_NEW_TASK); 4973 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 4974 break; 4975 case ConnectivityManager.TYPE_MOBILE: 4976 case ConnectivityManager.TYPE_MOBILE_HIPRI: 4977 intent = new Intent(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 4978 intent.putExtra("EXTRA_URL", url); 4979 intent.setFlags(0); 4980 pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 4981 break; 4982 default: 4983 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 4984 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 4985 Intent.FLAG_ACTIVITY_NEW_TASK); 4986 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 4987 break; 4988 } 4989 } 4990 setProvNotificationVisibleIntent(visible, networkType, extraInfo, pendingIntent); 4991 } 4992 4993 private void setProvNotificationVisibleIntent(boolean visible, int networkType, 4994 String extraInfo, PendingIntent intent) { 4995 if (DBG) { 4996 log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + 4997 networkType + " extraInfo=" + extraInfo); 4998 } 4999 5000 Resources r = Resources.getSystem(); 5001 NotificationManager notificationManager = (NotificationManager) mContext 5002 .getSystemService(Context.NOTIFICATION_SERVICE); 5003 5004 if (visible) { 5005 CharSequence title; 5006 CharSequence details; 5007 int icon; 5008 Notification notification = new Notification(); 5009 switch (networkType) { 5010 case ConnectivityManager.TYPE_WIFI: 5011 title = r.getString(R.string.wifi_available_sign_in, 0); 5012 details = r.getString(R.string.network_available_sign_in_detailed, 5013 extraInfo); 5014 icon = R.drawable.stat_notify_wifi_in_range; 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 break; 5024 default: 5025 title = r.getString(R.string.network_available_sign_in, 0); 5026 details = r.getString(R.string.network_available_sign_in_detailed, 5027 extraInfo); 5028 icon = R.drawable.stat_notify_rssi_in_range; 5029 break; 5030 } 5031 5032 notification.when = 0; 5033 notification.icon = icon; 5034 notification.flags = Notification.FLAG_AUTO_CANCEL; 5035 notification.tickerText = title; 5036 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 5037 notification.contentIntent = intent; 5038 5039 try { 5040 notificationManager.notify(NOTIFICATION_ID, networkType, notification); 5041 } catch (NullPointerException npe) { 5042 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 5043 npe.printStackTrace(); 5044 } 5045 } else { 5046 try { 5047 notificationManager.cancel(NOTIFICATION_ID, networkType); 5048 } catch (NullPointerException npe) { 5049 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 5050 npe.printStackTrace(); 5051 } 5052 } 5053 mIsNotificationVisible = visible; 5054 } 5055 5056 /** Location to an updatable file listing carrier provisioning urls. 5057 * An example: 5058 * 5059 * <?xml version="1.0" encoding="utf-8"?> 5060 * <provisioningUrls> 5061 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 5062 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 5063 * </provisioningUrls> 5064 */ 5065 private static final String PROVISIONING_URL_PATH = 5066 "/data/misc/radio/provisioning_urls.xml"; 5067 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 5068 5069 /** XML tag for root element. */ 5070 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 5071 /** XML tag for individual url */ 5072 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 5073 /** XML tag for redirected url */ 5074 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 5075 /** XML attribute for mcc */ 5076 private static final String ATTR_MCC = "mcc"; 5077 /** XML attribute for mnc */ 5078 private static final String ATTR_MNC = "mnc"; 5079 5080 private static final int REDIRECTED_PROVISIONING = 1; 5081 private static final int PROVISIONING = 2; 5082 5083 private String getProvisioningUrlBaseFromFile(int type) { 5084 FileReader fileReader = null; 5085 XmlPullParser parser = null; 5086 Configuration config = mContext.getResources().getConfiguration(); 5087 String tagType; 5088 5089 switch (type) { 5090 case PROVISIONING: 5091 tagType = TAG_PROVISIONING_URL; 5092 break; 5093 case REDIRECTED_PROVISIONING: 5094 tagType = TAG_REDIRECTED_URL; 5095 break; 5096 default: 5097 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 5098 type); 5099 } 5100 5101 try { 5102 fileReader = new FileReader(mProvisioningUrlFile); 5103 parser = Xml.newPullParser(); 5104 parser.setInput(fileReader); 5105 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 5106 5107 while (true) { 5108 XmlUtils.nextElement(parser); 5109 5110 String element = parser.getName(); 5111 if (element == null) break; 5112 5113 if (element.equals(tagType)) { 5114 String mcc = parser.getAttributeValue(null, ATTR_MCC); 5115 try { 5116 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 5117 String mnc = parser.getAttributeValue(null, ATTR_MNC); 5118 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 5119 parser.next(); 5120 if (parser.getEventType() == XmlPullParser.TEXT) { 5121 return parser.getText(); 5122 } 5123 } 5124 } 5125 } catch (NumberFormatException e) { 5126 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 5127 } 5128 } 5129 } 5130 return null; 5131 } catch (FileNotFoundException e) { 5132 loge("Carrier Provisioning Urls file not found"); 5133 } catch (XmlPullParserException e) { 5134 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 5135 } catch (IOException e) { 5136 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 5137 } finally { 5138 if (fileReader != null) { 5139 try { 5140 fileReader.close(); 5141 } catch (IOException e) {} 5142 } 5143 } 5144 return null; 5145 } 5146 5147 @Override 5148 public String getMobileRedirectedProvisioningUrl() { 5149 enforceConnectivityInternalPermission(); 5150 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 5151 if (TextUtils.isEmpty(url)) { 5152 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 5153 } 5154 return url; 5155 } 5156 5157 @Override 5158 public String getMobileProvisioningUrl() { 5159 enforceConnectivityInternalPermission(); 5160 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 5161 if (TextUtils.isEmpty(url)) { 5162 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 5163 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 5164 } else { 5165 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 5166 } 5167 // populate the iccid, imei and phone number in the provisioning url. 5168 if (!TextUtils.isEmpty(url)) { 5169 String phoneNumber = mTelephonyManager.getLine1Number(); 5170 if (TextUtils.isEmpty(phoneNumber)) { 5171 phoneNumber = "0000000000"; 5172 } 5173 url = String.format(url, 5174 mTelephonyManager.getSimSerialNumber() /* ICCID */, 5175 mTelephonyManager.getDeviceId() /* IMEI */, 5176 phoneNumber /* Phone numer */); 5177 } 5178 5179 return url; 5180 } 5181 5182 @Override 5183 public void setProvisioningNotificationVisible(boolean visible, int networkType, 5184 String extraInfo, String url) { 5185 enforceConnectivityInternalPermission(); 5186 setProvNotificationVisible(visible, networkType, extraInfo, url); 5187 } 5188 5189 @Override 5190 public void setAirplaneMode(boolean enable) { 5191 enforceConnectivityInternalPermission(); 5192 final long ident = Binder.clearCallingIdentity(); 5193 try { 5194 final ContentResolver cr = mContext.getContentResolver(); 5195 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 5196 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 5197 intent.putExtra("state", enable); 5198 mContext.sendBroadcast(intent); 5199 } finally { 5200 Binder.restoreCallingIdentity(ident); 5201 } 5202 } 5203 5204 private void onUserStart(int userId) { 5205 synchronized(mVpns) { 5206 Vpn userVpn = mVpns.get(userId); 5207 if (userVpn != null) { 5208 loge("Starting user already has a VPN"); 5209 return; 5210 } 5211 userVpn = new Vpn(mHandler.getLooper(), mContext, mNetd, this, userId); 5212 mVpns.put(userId, userVpn); 5213 } 5214 } 5215 5216 private void onUserStop(int userId) { 5217 synchronized(mVpns) { 5218 Vpn userVpn = mVpns.get(userId); 5219 if (userVpn == null) { 5220 loge("Stopping user has no VPN"); 5221 return; 5222 } 5223 mVpns.delete(userId); 5224 } 5225 } 5226 5227 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 5228 @Override 5229 public void onReceive(Context context, Intent intent) { 5230 final String action = intent.getAction(); 5231 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 5232 if (userId == UserHandle.USER_NULL) return; 5233 5234 if (Intent.ACTION_USER_STARTING.equals(action)) { 5235 onUserStart(userId); 5236 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 5237 onUserStop(userId); 5238 } 5239 } 5240 }; 5241 5242 @Override 5243 public LinkQualityInfo getLinkQualityInfo(int networkType) { 5244 enforceAccessPermission(); 5245 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 5246 return mNetTrackers[networkType].getLinkQualityInfo(); 5247 } else { 5248 return null; 5249 } 5250 } 5251 5252 @Override 5253 public LinkQualityInfo getActiveLinkQualityInfo() { 5254 enforceAccessPermission(); 5255 if (isNetworkTypeValid(mActiveDefaultNetwork) && 5256 mNetTrackers[mActiveDefaultNetwork] != null) { 5257 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 5258 } else { 5259 return null; 5260 } 5261 } 5262 5263 @Override 5264 public LinkQualityInfo[] getAllLinkQualityInfo() { 5265 enforceAccessPermission(); 5266 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 5267 for (NetworkStateTracker tracker : mNetTrackers) { 5268 if (tracker != null) { 5269 LinkQualityInfo li = tracker.getLinkQualityInfo(); 5270 if (li != null) { 5271 result.add(li); 5272 } 5273 } 5274 } 5275 5276 return result.toArray(new LinkQualityInfo[result.size()]); 5277 } 5278 5279 /* Infrastructure for network sampling */ 5280 5281 private void handleNetworkSamplingTimeout() { 5282 5283 log("Sampling interval elapsed, updating statistics .."); 5284 5285 // initialize list of interfaces .. 5286 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 5287 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 5288 for (NetworkStateTracker tracker : mNetTrackers) { 5289 if (tracker != null) { 5290 String ifaceName = tracker.getNetworkInterfaceName(); 5291 if (ifaceName != null) { 5292 mapIfaceToSample.put(ifaceName, null); 5293 } 5294 } 5295 } 5296 5297 // Read samples for all interfaces 5298 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 5299 5300 // process samples for all networks 5301 for (NetworkStateTracker tracker : mNetTrackers) { 5302 if (tracker != null) { 5303 String ifaceName = tracker.getNetworkInterfaceName(); 5304 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 5305 if (ss != null) { 5306 // end the previous sampling cycle 5307 tracker.stopSampling(ss); 5308 // start a new sampling cycle .. 5309 tracker.startSampling(ss); 5310 } 5311 } 5312 } 5313 5314 log("Done."); 5315 5316 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 5317 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 5318 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 5319 5320 if (DBG) log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 5321 5322 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 5323 } 5324 5325 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 5326 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 5327 mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, wakeupTime, intent); 5328 } 5329 5330 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 5331 new HashMap<Messenger, NetworkFactoryInfo>(); 5332 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 5333 new HashMap<NetworkRequest, NetworkRequestInfo>(); 5334 5335 private static class NetworkFactoryInfo { 5336 public final String name; 5337 public final Messenger messenger; 5338 public final AsyncChannel asyncChannel; 5339 5340 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 5341 this.name = name; 5342 this.messenger = messenger; 5343 this.asyncChannel = asyncChannel; 5344 } 5345 } 5346 5347 private class NetworkRequestInfo implements IBinder.DeathRecipient { 5348 static final boolean REQUEST = true; 5349 static final boolean LISTEN = false; 5350 5351 final NetworkRequest request; 5352 IBinder mBinder; 5353 final int mPid; 5354 final int mUid; 5355 final Messenger messenger; 5356 final boolean isRequest; 5357 5358 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 5359 super(); 5360 messenger = m; 5361 request = r; 5362 mBinder = binder; 5363 mPid = getCallingPid(); 5364 mUid = getCallingUid(); 5365 this.isRequest = isRequest; 5366 5367 try { 5368 mBinder.linkToDeath(this, 0); 5369 } catch (RemoteException e) { 5370 binderDied(); 5371 } 5372 } 5373 5374 void unlinkDeathRecipient() { 5375 mBinder.unlinkToDeath(this, 0); 5376 } 5377 5378 public void binderDied() { 5379 log("ConnectivityService NetworkRequestInfo binderDied(" + 5380 request + ", " + mBinder + ")"); 5381 releaseNetworkRequest(request); 5382 } 5383 5384 public String toString() { 5385 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 5386 mPid + " for " + request; 5387 } 5388 } 5389 5390 @Override 5391 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 5392 Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { 5393 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 5394 == false) { 5395 enforceConnectivityInternalPermission(); 5396 } else { 5397 enforceChangePermission(); 5398 } 5399 5400 if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { 5401 throw new IllegalArgumentException("Bad timeout specified"); 5402 } 5403 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 5404 networkCapabilities), legacyType, nextNetworkRequestId()); 5405 if (DBG) log("requestNetwork for " + networkRequest); 5406 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 5407 NetworkRequestInfo.REQUEST); 5408 5409 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 5410 if (timeoutMs > 0) { 5411 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 5412 nri), timeoutMs); 5413 } 5414 return networkRequest; 5415 } 5416 5417 @Override 5418 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 5419 PendingIntent operation) { 5420 // TODO 5421 return null; 5422 } 5423 5424 @Override 5425 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 5426 Messenger messenger, IBinder binder) { 5427 enforceAccessPermission(); 5428 5429 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 5430 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 5431 if (DBG) log("listenForNetwork for " + networkRequest); 5432 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 5433 NetworkRequestInfo.LISTEN); 5434 5435 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 5436 return networkRequest; 5437 } 5438 5439 @Override 5440 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 5441 PendingIntent operation) { 5442 } 5443 5444 @Override 5445 public void releaseNetworkRequest(NetworkRequest networkRequest) { 5446 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), 5447 0, networkRequest)); 5448 } 5449 5450 @Override 5451 public void registerNetworkFactory(Messenger messenger, String name) { 5452 enforceConnectivityInternalPermission(); 5453 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 5454 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 5455 } 5456 5457 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 5458 if (VDBG) log("Got NetworkFactory Messenger for " + nfi.name); 5459 mNetworkFactoryInfos.put(nfi.messenger, nfi); 5460 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 5461 } 5462 5463 @Override 5464 public void unregisterNetworkFactory(Messenger messenger) { 5465 enforceConnectivityInternalPermission(); 5466 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 5467 } 5468 5469 private void handleUnregisterNetworkFactory(Messenger messenger) { 5470 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 5471 if (nfi == null) { 5472 if (VDBG) log("Failed to find Messenger in unregisterNetworkFactory"); 5473 return; 5474 } 5475 if (VDBG) log("unregisterNetworkFactory for " + nfi.name); 5476 } 5477 5478 /** 5479 * NetworkAgentInfo supporting a request by requestId. 5480 * These have already been vetted (their Capabilities satisfy the request) 5481 * and the are the highest scored network available. 5482 * the are keyed off the Requests requestId. 5483 */ 5484 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 5485 new SparseArray<NetworkAgentInfo>(); 5486 5487 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 5488 new SparseArray<NetworkAgentInfo>(); 5489 5490 // NetworkAgentInfo keyed off its connecting messenger 5491 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 5492 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 5493 new HashMap<Messenger, NetworkAgentInfo>(); 5494 5495 private final NetworkRequest mDefaultRequest; 5496 5497 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 5498 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 5499 int currentScore) { 5500 enforceConnectivityInternalPermission(); 5501 5502 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), nextNetId(), 5503 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 5504 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler); 5505 if (VDBG) log("registerNetworkAgent " + nai); 5506 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 5507 } 5508 5509 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 5510 if (VDBG) log("Got NetworkAgent Messenger"); 5511 mNetworkAgentInfos.put(na.messenger, na); 5512 synchronized (mNetworkForNetId) { 5513 mNetworkForNetId.put(na.network.netId, na); 5514 } 5515 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 5516 NetworkInfo networkInfo = na.networkInfo; 5517 na.networkInfo = null; 5518 updateNetworkInfo(na, networkInfo); 5519 } 5520 5521 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 5522 LinkProperties newLp = networkAgent.linkProperties; 5523 int netId = networkAgent.network.netId; 5524 5525 updateInterfaces(newLp, oldLp, netId); 5526 updateMtu(newLp, oldLp); 5527 // TODO - figure out what to do for clat 5528// for (LinkProperties lp : newLp.getStackedLinks()) { 5529// updateMtu(lp, null); 5530// } 5531 updateRoutes(newLp, oldLp, netId); 5532 updateDnses(newLp, oldLp, netId); 5533 updateClat(newLp, oldLp, networkAgent); 5534 } 5535 5536 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { 5537 // Update 464xlat state. 5538 if (mClat.requiresClat(na)) { 5539 5540 // If the connection was previously using clat, but is not using it now, stop the clat 5541 // daemon. Normally, this happens automatically when the connection disconnects, but if 5542 // the disconnect is not reported, or if the connection's LinkProperties changed for 5543 // some other reason (e.g., handoff changes the IP addresses on the link), it would 5544 // still be running. If it's not running, then stopping it is a no-op. 5545 if (Nat464Xlat.isRunningClat(oldLp) && !Nat464Xlat.isRunningClat(newLp)) { 5546 mClat.stopClat(); 5547 } 5548 // If the link requires clat to be running, then start the daemon now. 5549 if (na.networkInfo.isConnected()) { 5550 mClat.startClat(na); 5551 } else { 5552 mClat.stopClat(); 5553 } 5554 } 5555 } 5556 5557 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 5558 CompareResult<String> interfaceDiff = new CompareResult<String>(); 5559 if (oldLp != null) { 5560 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 5561 } else if (newLp != null) { 5562 interfaceDiff.added = newLp.getAllInterfaceNames(); 5563 } 5564 for (String iface : interfaceDiff.added) { 5565 try { 5566 mNetd.addInterfaceToNetwork(iface, netId); 5567 } catch (Exception e) { 5568 loge("Exception adding interface: " + e); 5569 } 5570 } 5571 for (String iface : interfaceDiff.removed) { 5572 try { 5573 mNetd.removeInterfaceFromNetwork(iface, netId); 5574 } catch (Exception e) { 5575 loge("Exception removing interface: " + e); 5576 } 5577 } 5578 } 5579 5580 private void updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 5581 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 5582 if (oldLp != null) { 5583 routeDiff = oldLp.compareAllRoutes(newLp); 5584 } else if (newLp != null) { 5585 routeDiff.added = newLp.getAllRoutes(); 5586 } 5587 5588 // add routes before removing old in case it helps with continuous connectivity 5589 5590 // do this twice, adding non-nexthop routes first, then routes they are dependent on 5591 for (RouteInfo route : routeDiff.added) { 5592 if (route.hasGateway()) continue; 5593 try { 5594 mNetd.addRoute(netId, route); 5595 } catch (Exception e) { 5596 loge("Exception in addRoute for non-gateway: " + e); 5597 } 5598 } 5599 for (RouteInfo route : routeDiff.added) { 5600 if (route.hasGateway() == false) continue; 5601 try { 5602 mNetd.addRoute(netId, route); 5603 } catch (Exception e) { 5604 loge("Exception in addRoute for gateway: " + e); 5605 } 5606 } 5607 5608 for (RouteInfo route : routeDiff.removed) { 5609 try { 5610 mNetd.removeRoute(netId, route); 5611 } catch (Exception e) { 5612 loge("Exception in removeRoute: " + e); 5613 } 5614 } 5615 } 5616 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId) { 5617 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 5618 Collection<InetAddress> dnses = newLp.getDnsServers(); 5619 if (dnses.size() == 0 && mDefaultDns != null) { 5620 dnses = new ArrayList(); 5621 dnses.add(mDefaultDns); 5622 if (DBG) { 5623 loge("no dns provided for netId " + netId + ", so using defaults"); 5624 } 5625 } 5626 try { 5627 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 5628 newLp.getDomains()); 5629 } catch (Exception e) { 5630 loge("Exception in setDnsServersForNetwork: " + e); 5631 } 5632 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 5633 if (defaultNai != null && defaultNai.network.netId == netId) { 5634 setDefaultDnsSystemProperties(dnses); 5635 } 5636 } 5637 } 5638 5639 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 5640 int last = 0; 5641 for (InetAddress dns : dnses) { 5642 ++last; 5643 String key = "net.dns" + last; 5644 String value = dns.getHostAddress(); 5645 SystemProperties.set(key, value); 5646 } 5647 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 5648 String key = "net.dns" + i; 5649 SystemProperties.set(key, ""); 5650 } 5651 mNumDnsEntries = last; 5652 } 5653 5654 5655 private void updateCapabilities(NetworkAgentInfo networkAgent, 5656 NetworkCapabilities networkCapabilities) { 5657 // TODO - what else here? Verify still satisfies everybody? 5658 // Check if satisfies somebody new? call callbacks? 5659 synchronized (networkAgent) { 5660 networkAgent.networkCapabilities = networkCapabilities; 5661 } 5662 } 5663 5664 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 5665 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 5666 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 5667 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 5668 networkRequest); 5669 } 5670 } 5671 5672 private void callCallbackForRequest(NetworkRequestInfo nri, 5673 NetworkAgentInfo networkAgent, int notificationType) { 5674 if (nri.messenger == null) return; // Default request has no msgr 5675 Object o; 5676 int a1 = 0; 5677 int a2 = 0; 5678 switch (notificationType) { 5679 case ConnectivityManager.CALLBACK_LOSING: 5680 a1 = 30 * 1000; // TODO - read this from NetworkMonitor 5681 // fall through 5682 case ConnectivityManager.CALLBACK_PRECHECK: 5683 case ConnectivityManager.CALLBACK_AVAILABLE: 5684 case ConnectivityManager.CALLBACK_LOST: 5685 case ConnectivityManager.CALLBACK_CAP_CHANGED: 5686 case ConnectivityManager.CALLBACK_IP_CHANGED: { 5687 o = new NetworkRequest(nri.request); 5688 a2 = networkAgent.network.netId; 5689 break; 5690 } 5691 case ConnectivityManager.CALLBACK_UNAVAIL: 5692 case ConnectivityManager.CALLBACK_RELEASED: { 5693 o = new NetworkRequest(nri.request); 5694 break; 5695 } 5696 default: { 5697 loge("Unknown notificationType " + notificationType); 5698 return; 5699 } 5700 } 5701 Message msg = Message.obtain(); 5702 msg.arg1 = a1; 5703 msg.arg2 = a2; 5704 msg.obj = o; 5705 msg.what = notificationType; 5706 try { 5707 if (VDBG) log("sending notification " + notificationType + " for " + nri.request); 5708 nri.messenger.send(msg); 5709 } catch (RemoteException e) { 5710 // may occur naturally in the race of binder death. 5711 loge("RemoteException caught trying to send a callback msg for " + nri.request); 5712 } 5713 } 5714 5715 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 5716 if (oldNetwork == null) { 5717 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 5718 return; 5719 } 5720 if (DBG) log("handleLingerComplete for " + oldNetwork.name()); 5721 if (DBG) { 5722 if (oldNetwork.networkRequests.size() != 0) { 5723 loge("Dead network still had " + oldNetwork.networkRequests.size() + " requests"); 5724 } 5725 } 5726 oldNetwork.asyncChannel.disconnect(); 5727 } 5728 5729 private void handleConnectionValidated(NetworkAgentInfo newNetwork) { 5730 if (newNetwork == null) { 5731 loge("Unknown NetworkAgentInfo in handleConnectionValidated"); 5732 return; 5733 } 5734 boolean keep = newNetwork.isVPN(); 5735 boolean isNewDefault = false; 5736 if (DBG) log("handleConnectionValidated for "+newNetwork.name()); 5737 // check if any NetworkRequest wants this NetworkAgent 5738 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 5739 if (VDBG) log(" new Network has: " + newNetwork.networkCapabilities); 5740 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 5741 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 5742 if (newNetwork == currentNetwork) { 5743 if (VDBG) log("Network " + newNetwork.name() + " was already satisfying" + 5744 " request " + nri.request.requestId + ". No change."); 5745 keep = true; 5746 continue; 5747 } 5748 5749 // check if it satisfies the NetworkCapabilities 5750 if (VDBG) log(" checking if request is satisfied: " + nri.request); 5751 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 5752 newNetwork.networkCapabilities)) { 5753 // next check if it's better than any current network we're using for 5754 // this request 5755 if (VDBG) { 5756 log("currentScore = " + 5757 (currentNetwork != null ? currentNetwork.currentScore : 0) + 5758 ", newScore = " + newNetwork.currentScore); 5759 } 5760 if (currentNetwork == null || 5761 currentNetwork.currentScore < newNetwork.currentScore) { 5762 if (currentNetwork != null) { 5763 if (VDBG) log(" accepting network in place of " + currentNetwork.name()); 5764 currentNetwork.networkRequests.remove(nri.request.requestId); 5765 currentNetwork.networkLingered.add(nri.request); 5766 affectedNetworks.add(currentNetwork); 5767 } else { 5768 if (VDBG) log(" accepting network in place of null"); 5769 } 5770 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 5771 newNetwork.addRequest(nri.request); 5772 int legacyType = nri.request.legacyType; 5773 if (legacyType != TYPE_NONE) { 5774 mLegacyTypeTracker.add(legacyType, newNetwork); 5775 } 5776 keep = true; 5777 // TODO - this could get expensive if we have alot of requests for this 5778 // network. Think about if there is a way to reduce this. Push 5779 // netid->request mapping to each factory? 5780 sendUpdatedScoreToFactories(nri.request, newNetwork.currentScore); 5781 if (mDefaultRequest.requestId == nri.request.requestId) { 5782 isNewDefault = true; 5783 updateActiveDefaultNetwork(newNetwork); 5784 if (newNetwork.linkProperties != null) { 5785 setDefaultDnsSystemProperties( 5786 newNetwork.linkProperties.getDnsServers()); 5787 } else { 5788 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 5789 } 5790 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 5791 } 5792 } 5793 } 5794 } 5795 for (NetworkAgentInfo nai : affectedNetworks) { 5796 boolean teardown = !nai.isVPN(); 5797 for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { 5798 NetworkRequest nr = nai.networkRequests.valueAt(i); 5799 try { 5800 if (mNetworkRequests.get(nr).isRequest) { 5801 teardown = false; 5802 } 5803 } catch (Exception e) { 5804 loge("Request " + nr + " not found in mNetworkRequests."); 5805 loge(" it came from request list of " + nai.name()); 5806 } 5807 } 5808 if (teardown) { 5809 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 5810 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 5811 } else { 5812 // not going to linger, so kill the list of linger networks.. only 5813 // notify them of linger if it happens as the result of gaining another, 5814 // but if they transition and old network stays up, don't tell them of linger 5815 // or very delayed loss 5816 nai.networkLingered.clear(); 5817 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 5818 } 5819 } 5820 if (keep) { 5821 if (isNewDefault) { 5822 if (VDBG) log("Switching to new default network: " + newNetwork); 5823 setupDataActivityTracking(newNetwork); 5824 try { 5825 mNetd.setDefaultNetId(newNetwork.network.netId); 5826 } catch (Exception e) { 5827 loge("Exception setting default network :" + e); 5828 } 5829 if (newNetwork.equals(mNetworkForRequestId.get(mDefaultRequest.requestId))) { 5830 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 5831 } 5832 synchronized (ConnectivityService.this) { 5833 // have a new default network, release the transition wakelock in 5834 // a second if it's held. The second pause is to allow apps 5835 // to reconnect over the new network 5836 if (mNetTransitionWakeLock.isHeld()) { 5837 mHandler.sendMessageDelayed(mHandler.obtainMessage( 5838 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 5839 mNetTransitionWakeLockSerialNumber, 0), 5840 1000); 5841 } 5842 } 5843 5844 // this will cause us to come up initially as unconnected and switching 5845 // to connected after our normal pause unless somebody reports us as 5846 // really disconnected 5847 mDefaultInetConditionPublished = 0; 5848 mDefaultConnectionSequence++; 5849 mInetConditionChangeInFlight = false; 5850 // TODO - read the tcp buffer size config string from somewhere 5851 // updateNetworkSettings(); 5852 } 5853 // notify battery stats service about this network 5854 try { 5855 BatteryStatsService.getService().noteNetworkInterfaceType( 5856 newNetwork.linkProperties.getInterfaceName(), 5857 newNetwork.networkInfo.getType()); 5858 } catch (RemoteException e) { } 5859 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 5860 } else { 5861 if (DBG && newNetwork.networkRequests.size() != 0) { 5862 loge("tearing down network with live requests:"); 5863 for (int i=0; i < newNetwork.networkRequests.size(); i++) { 5864 loge(" " + newNetwork.networkRequests.valueAt(i)); 5865 } 5866 } 5867 if (VDBG) log("Validated network turns out to be unwanted. Tear it down."); 5868 newNetwork.asyncChannel.disconnect(); 5869 } 5870 } 5871 5872 5873 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 5874 NetworkInfo.State state = newInfo.getState(); 5875 NetworkInfo oldInfo = null; 5876 synchronized (networkAgent) { 5877 oldInfo = networkAgent.networkInfo; 5878 networkAgent.networkInfo = newInfo; 5879 } 5880 if (networkAgent.isVPN() && mLockdownTracker != null) { 5881 mLockdownTracker.onVpnStateChanged(newInfo); 5882 } 5883 5884 if (oldInfo != null && oldInfo.getState() == state) { 5885 if (VDBG) log("ignoring duplicate network state non-change"); 5886 return; 5887 } 5888 if (DBG) { 5889 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 5890 (oldInfo == null ? "null" : oldInfo.getState()) + 5891 " to " + state); 5892 } 5893 5894 if (state == NetworkInfo.State.CONNECTED) { 5895 try { 5896 // This is likely caused by the fact that this network already 5897 // exists. An example is when a network goes from CONNECTED to 5898 // CONNECTING and back (like wifi on DHCP renew). 5899 // TODO: keep track of which networks we've created, or ask netd 5900 // to tell us whether we've already created this network or not. 5901 if (networkAgent.isVPN()) { 5902 mNetd.createVirtualNetwork(networkAgent.network.netId, 5903 !networkAgent.linkProperties.getDnsServers().isEmpty()); 5904 } else { 5905 mNetd.createPhysicalNetwork(networkAgent.network.netId); 5906 } 5907 } catch (Exception e) { 5908 loge("Error creating network " + networkAgent.network.netId + ": " 5909 + e.getMessage()); 5910 return; 5911 } 5912 5913 updateLinkProperties(networkAgent, null); 5914 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 5915 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 5916 if (networkAgent.isVPN()) { 5917 // Temporarily disable the default proxy (not global). 5918 synchronized (mProxyLock) { 5919 if (!mDefaultProxyDisabled) { 5920 mDefaultProxyDisabled = true; 5921 if (mGlobalProxy == null && mDefaultProxy != null) { 5922 sendProxyBroadcast(null); 5923 } 5924 } 5925 } 5926 // TODO: support proxy per network. 5927 } 5928 } else if (state == NetworkInfo.State.DISCONNECTED || 5929 state == NetworkInfo.State.SUSPENDED) { 5930 networkAgent.asyncChannel.disconnect(); 5931 if (networkAgent.isVPN()) { 5932 synchronized (mProxyLock) { 5933 if (mDefaultProxyDisabled) { 5934 mDefaultProxyDisabled = false; 5935 if (mGlobalProxy == null && mDefaultProxy != null) { 5936 sendProxyBroadcast(mDefaultProxy); 5937 } 5938 } 5939 } 5940 } 5941 } 5942 } 5943 5944 private void updateNetworkScore(NetworkAgentInfo nai, int score) { 5945 if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); 5946 5947 nai.currentScore = score; 5948 5949 // TODO - This will not do the right thing if this network is lowering 5950 // its score and has requests that can be served by other 5951 // currently-active networks, or if the network is increasing its 5952 // score and other networks have requests that can be better served 5953 // by this network. 5954 // 5955 // Really we want to see if any of our requests migrate to other 5956 // active/lingered networks and if any other requests migrate to us (depending 5957 // on increasing/decreasing currentScore. That's a bit of work and probably our 5958 // score checking/network allocation code needs to be modularized so we can understand 5959 // (see handleConnectionValided for an example). 5960 // 5961 // As a first order approx, lets just advertise the new score to factories. If 5962 // somebody can beat it they will nominate a network and our normal net replacement 5963 // code will fire. 5964 for (int i = 0; i < nai.networkRequests.size(); i++) { 5965 NetworkRequest nr = nai.networkRequests.valueAt(i); 5966 sendUpdatedScoreToFactories(nr, score); 5967 } 5968 } 5969 5970 // notify only this one new request of the current state 5971 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 5972 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 5973 // TODO - read state from monitor to decide what to send. 5974// if (nai.networkMonitor.isLingering()) { 5975// notifyType = NetworkCallbacks.LOSING; 5976// } else if (nai.networkMonitor.isEvaluating()) { 5977// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 5978// } 5979 callCallbackForRequest(nri, nai, notifyType); 5980 } 5981 5982 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 5983 if (connected) { 5984 NetworkInfo info = new NetworkInfo(nai.networkInfo); 5985 info.setType(type); 5986 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 5987 } else { 5988 NetworkInfo info = new NetworkInfo(nai.networkInfo); 5989 info.setType(type); 5990 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 5991 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 5992 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 5993 if (info.isFailover()) { 5994 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 5995 nai.networkInfo.setFailover(false); 5996 } 5997 if (info.getReason() != null) { 5998 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 5999 } 6000 if (info.getExtraInfo() != null) { 6001 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 6002 } 6003 NetworkAgentInfo newDefaultAgent = null; 6004 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 6005 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 6006 if (newDefaultAgent != null) { 6007 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 6008 newDefaultAgent.networkInfo); 6009 } else { 6010 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 6011 } 6012 } 6013 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 6014 mDefaultInetConditionPublished); 6015 final Intent immediateIntent = new Intent(intent); 6016 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 6017 sendStickyBroadcast(immediateIntent); 6018 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 6019 if (newDefaultAgent != null) { 6020 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 6021 getConnectivityChangeDelay()); 6022 } 6023 } 6024 } 6025 6026 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 6027 if (VDBG) log("notifyType " + notifyType + " for " + networkAgent.name()); 6028 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 6029 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 6030 NetworkRequestInfo nri = mNetworkRequests.get(nr); 6031 if (VDBG) log(" sending notification for " + nr); 6032 callCallbackForRequest(nri, networkAgent, notifyType); 6033 } 6034 } 6035 6036 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 6037 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 6038 if (nai != null) { 6039 synchronized (nai) { 6040 return new LinkProperties(nai.linkProperties); 6041 } 6042 } 6043 return new LinkProperties(); 6044 } 6045 6046 private NetworkInfo getNetworkInfoForType(int networkType) { 6047 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 6048 return null; 6049 6050 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 6051 if (nai != null) { 6052 NetworkInfo result = new NetworkInfo(nai.networkInfo); 6053 result.setType(networkType); 6054 return result; 6055 } else { 6056 return new NetworkInfo(networkType, 0, "Unknown", ""); 6057 } 6058 } 6059 6060 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 6061 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 6062 if (nai != null) { 6063 synchronized (nai) { 6064 return new NetworkCapabilities(nai.networkCapabilities); 6065 } 6066 } 6067 return new NetworkCapabilities(); 6068 } 6069} 6070