ConnectivityService.java revision 06b6cdaed5c68816faac9d2354c6caf61e65e19d
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; 181 182/** 183 * @hide 184 */ 185public class ConnectivityService extends IConnectivityManager.Stub { 186 private static final String TAG = "ConnectivityService"; 187 188 private static final boolean DBG = true; 189 private static final boolean VDBG = true; // STOPSHIP 190 191 // network sampling debugging 192 private static final boolean SAMPLE_DBG = false; 193 194 private static final boolean LOGD_RULES = false; 195 196 // TODO: create better separation between radio types and network types 197 198 // how long to wait before switching back to a radio's default network 199 private static final int RESTORE_DEFAULT_NETWORK_DELAY = 1 * 60 * 1000; 200 // system property that can override the above value 201 private static final String NETWORK_RESTORE_DELAY_PROP_NAME = 202 "android.telephony.apn-restore"; 203 204 // Default value if FAIL_FAST_TIME_MS is not set 205 private static final int DEFAULT_FAIL_FAST_TIME_MS = 1 * 60 * 1000; 206 // system property that can override DEFAULT_FAIL_FAST_TIME_MS 207 private static final String FAIL_FAST_TIME_MS = 208 "persist.radio.fail_fast_time_ms"; 209 210 private static final String ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED = 211 "android.net.ConnectivityService.action.PKT_CNT_SAMPLE_INTERVAL_ELAPSED"; 212 213 private static final int SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE = 0; 214 215 private PendingIntent mSampleIntervalElapsedIntent; 216 217 // Set network sampling interval at 12 minutes, this way, even if the timers get 218 // aggregated, it will fire at around 15 minutes, which should allow us to 219 // aggregate this timer with other timers (specially the socket keep alive timers) 220 private static final int DEFAULT_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 12 * 60); 221 222 // start network sampling a minute after booting ... 223 private static final int DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 60); 224 225 AlarmManager mAlarmManager; 226 227 // used in recursive route setting to add gateways for the host for which 228 // a host route was requested. 229 private static final int MAX_HOSTROUTE_CYCLE_COUNT = 10; 230 231 private Tethering mTethering; 232 233 private KeyStore mKeyStore; 234 235 @GuardedBy("mVpns") 236 private final SparseArray<Vpn> mVpns = new SparseArray<Vpn>(); 237 238 private boolean mLockdownEnabled; 239 private LockdownVpnTracker mLockdownTracker; 240 241 private Nat464Xlat mClat; 242 243 /** Lock around {@link #mUidRules} and {@link #mMeteredIfaces}. */ 244 private Object mRulesLock = new Object(); 245 /** Currently active network rules by UID. */ 246 private SparseIntArray mUidRules = new SparseIntArray(); 247 /** Set of ifaces that are costly. */ 248 private HashSet<String> mMeteredIfaces = Sets.newHashSet(); 249 250 /** 251 * Sometimes we want to refer to the individual network state 252 * trackers separately, and sometimes we just want to treat them 253 * abstractly. 254 */ 255 private NetworkStateTracker mNetTrackers[]; 256 257 /* 258 * Handles captive portal check on a network. 259 * Only set if device has {@link PackageManager#FEATURE_WIFI}. 260 */ 261 private CaptivePortalTracker mCaptivePortalTracker; 262 263 /** 264 * The link properties that define the current links 265 */ 266 private LinkProperties mCurrentLinkProperties[]; 267 268 /** 269 * A per Net list of the PID's that requested access to the net 270 * used both as a refcount and for per-PID DNS selection 271 */ 272 private List<Integer> mNetRequestersPids[]; 273 274 // priority order of the nettrackers 275 // (excluding dynamically set mNetworkPreference) 276 // TODO - move mNetworkTypePreference into this 277 private int[] mPriorityList; 278 279 private Context mContext; 280 private int mNetworkPreference; 281 private int mActiveDefaultNetwork = -1; 282 // 0 is full bad, 100 is full good 283 private int mDefaultInetCondition = 0; 284 private int mDefaultInetConditionPublished = 0; 285 private boolean mInetConditionChangeInFlight = false; 286 private int mDefaultConnectionSequence = 0; 287 288 private Object mDnsLock = new Object(); 289 private int mNumDnsEntries; 290 291 private boolean mTestMode; 292 private static ConnectivityService sServiceInstance; 293 294 private INetworkManagementService mNetd; 295 private INetworkPolicyManager mPolicyManager; 296 297 private static final int ENABLED = 1; 298 private static final int DISABLED = 0; 299 300 private static final boolean ADD = true; 301 private static final boolean REMOVE = false; 302 303 private static final boolean TO_DEFAULT_TABLE = true; 304 private static final boolean TO_SECONDARY_TABLE = false; 305 306 private static final boolean EXEMPT = true; 307 private static final boolean UNEXEMPT = false; 308 309 /** 310 * used internally as a delayed event to make us switch back to the 311 * default network 312 */ 313 private static final int EVENT_RESTORE_DEFAULT_NETWORK = 1; 314 315 /** 316 * used internally to change our mobile data enabled flag 317 */ 318 private static final int EVENT_CHANGE_MOBILE_DATA_ENABLED = 2; 319 320 /** 321 * used internally to synchronize inet condition reports 322 * arg1 = networkType 323 * arg2 = condition (0 bad, 100 good) 324 */ 325 private static final int EVENT_INET_CONDITION_CHANGE = 4; 326 327 /** 328 * used internally to mark the end of inet condition hold periods 329 * arg1 = networkType 330 */ 331 private static final int EVENT_INET_CONDITION_HOLD_END = 5; 332 333 /** 334 * used internally to clear a wakelock when transitioning 335 * from one net to another. Clear happens when we get a new 336 * network - EVENT_EXPIRE_NET_TRANSITION_WAKELOCK happens 337 * after a timeout if no network is found (typically 1 min). 338 */ 339 private static final int EVENT_CLEAR_NET_TRANSITION_WAKELOCK = 8; 340 341 /** 342 * used internally to reload global proxy settings 343 */ 344 private static final int EVENT_APPLY_GLOBAL_HTTP_PROXY = 9; 345 346 /** 347 * used internally to set external dependency met/unmet 348 * arg1 = ENABLED (met) or DISABLED (unmet) 349 * arg2 = NetworkType 350 */ 351 private static final int EVENT_SET_DEPENDENCY_MET = 10; 352 353 /** 354 * used internally to send a sticky broadcast delayed. 355 */ 356 private static final int EVENT_SEND_STICKY_BROADCAST_INTENT = 11; 357 358 /** 359 * Used internally to 360 * {@link NetworkStateTracker#setPolicyDataEnable(boolean)}. 361 */ 362 private static final int EVENT_SET_POLICY_DATA_ENABLE = 12; 363 364 /** 365 * Used internally to disable fail fast of mobile data 366 */ 367 private static final int EVENT_ENABLE_FAIL_FAST_MOBILE_DATA = 14; 368 369 /** 370 * used internally to indicate that data sampling interval is up 371 */ 372 private static final int EVENT_SAMPLE_INTERVAL_ELAPSED = 15; 373 374 /** 375 * PAC manager has received new port. 376 */ 377 private static final int EVENT_PROXY_HAS_CHANGED = 16; 378 379 /** 380 * used internally when registering NetworkFactories 381 * obj = NetworkFactoryInfo 382 */ 383 private static final int EVENT_REGISTER_NETWORK_FACTORY = 17; 384 385 /** 386 * used internally when registering NetworkAgents 387 * obj = Messenger 388 */ 389 private static final int EVENT_REGISTER_NETWORK_AGENT = 18; 390 391 /** 392 * used to add a network request 393 * includes a NetworkRequestInfo 394 */ 395 private static final int EVENT_REGISTER_NETWORK_REQUEST = 19; 396 397 /** 398 * indicates a timeout period is over - check if we had a network yet or not 399 * and if not, call the timeout calback (but leave the request live until they 400 * cancel it. 401 * includes a NetworkRequestInfo 402 */ 403 private static final int EVENT_TIMEOUT_NETWORK_REQUEST = 20; 404 405 /** 406 * used to add a network listener - no request 407 * includes a NetworkRequestInfo 408 */ 409 private static final int EVENT_REGISTER_NETWORK_LISTENER = 21; 410 411 /** 412 * used to remove a network request, either a listener or a real request 413 * arg1 = UID of caller 414 * obj = NetworkRequest 415 */ 416 private static final int EVENT_RELEASE_NETWORK_REQUEST = 22; 417 418 /** 419 * used internally when registering NetworkFactories 420 * obj = Messenger 421 */ 422 private static final int EVENT_UNREGISTER_NETWORK_FACTORY = 23; 423 424 /** 425 * used internally to expire a wakelock when transitioning 426 * from one net to another. Expire happens when we fail to find 427 * a new network (typically after 1 minute) - 428 * EVENT_CLEAR_NET_TRANSITION_WAKELOCK happens if we had found 429 * a replacement network. 430 */ 431 private static final int EVENT_EXPIRE_NET_TRANSITION_WAKELOCK = 24; 432 433 434 /** Handler used for internal events. */ 435 final private InternalHandler mHandler; 436 /** Handler used for incoming {@link NetworkStateTracker} events. */ 437 final private NetworkStateTrackerHandler mTrackerHandler; 438 439 // list of DeathRecipients used to make sure features are turned off when 440 // a process dies 441 private List<FeatureUser> mFeatureUsers; 442 443 private boolean mSystemReady; 444 private Intent mInitialBroadcast; 445 446 private PowerManager.WakeLock mNetTransitionWakeLock; 447 private String mNetTransitionWakeLockCausedBy = ""; 448 private int mNetTransitionWakeLockSerialNumber; 449 private int mNetTransitionWakeLockTimeout; 450 451 private InetAddress mDefaultDns; 452 453 // Lock for protecting access to mAddedRoutes and mExemptAddresses 454 private final Object mRoutesLock = new Object(); 455 456 // this collection is used to refcount the added routes - if there are none left 457 // it's time to remove the route from the route table 458 @GuardedBy("mRoutesLock") 459 private Collection<RouteInfo> mAddedRoutes = new ArrayList<RouteInfo>(); 460 461 // this collection corresponds to the entries of mAddedRoutes that have routing exemptions 462 // used to handle cleanup of exempt rules 463 @GuardedBy("mRoutesLock") 464 private Collection<LinkAddress> mExemptAddresses = new ArrayList<LinkAddress>(); 465 466 // used in DBG mode to track inet condition reports 467 private static final int INET_CONDITION_LOG_MAX_SIZE = 15; 468 private ArrayList mInetLog; 469 470 // track the current default http proxy - tell the world if we get a new one (real change) 471 private ProxyInfo mDefaultProxy = null; 472 private Object mProxyLock = new Object(); 473 private boolean mDefaultProxyDisabled = false; 474 475 // track the global proxy. 476 private ProxyInfo mGlobalProxy = null; 477 478 private PacManager mPacManager = null; 479 480 private SettingsObserver mSettingsObserver; 481 482 private AppOpsManager mAppOpsManager; 483 484 private UserManager mUserManager; 485 486 NetworkConfig[] mNetConfigs; 487 int mNetworksDefined; 488 489 private static class RadioAttributes { 490 public int mSimultaneity; 491 public int mType; 492 public RadioAttributes(String init) { 493 String fragments[] = init.split(","); 494 mType = Integer.parseInt(fragments[0]); 495 mSimultaneity = Integer.parseInt(fragments[1]); 496 } 497 } 498 RadioAttributes[] mRadioAttributes; 499 500 // the set of network types that can only be enabled by system/sig apps 501 List mProtectedNetworks; 502 503 private DataConnectionStats mDataConnectionStats; 504 505 private AtomicInteger mEnableFailFastMobileDataTag = new AtomicInteger(0); 506 507 TelephonyManager mTelephonyManager; 508 509 // sequence number for Networks 510 private final static int MIN_NET_ID = 10; // some reserved marks 511 private final static int MAX_NET_ID = 65535; 512 private int mNextNetId = MIN_NET_ID; 513 514 // sequence number of NetworkRequests 515 private int mNextNetworkRequestId = 1; 516 517 private static final int UID_UNUSED = -1; 518 519 /** 520 * Implements support for the legacy "one network per network type" model. 521 * 522 * We used to have a static array of NetworkStateTrackers, one for each 523 * network type, but that doesn't work any more now that we can have, 524 * for example, more that one wifi network. This class stores all the 525 * NetworkAgentInfo objects that support a given type, but the legacy 526 * API will only see the first one. 527 * 528 * It serves two main purposes: 529 * 530 * 1. Provide information about "the network for a given type" (since this 531 * API only supports one). 532 * 2. Send legacy connectivity change broadcasts. Broadcasts are sent if 533 * the first network for a given type changes, or if the default network 534 * changes. 535 */ 536 private class LegacyTypeTracker { 537 /** 538 * Array of lists, one per legacy network type (e.g., TYPE_MOBILE_MMS). 539 * Each list holds references to all NetworkAgentInfos that are used to 540 * satisfy requests for that network type. 541 * 542 * This array is built out at startup such that an unsupported network 543 * doesn't get an ArrayList instance, making this a tristate: 544 * unsupported, supported but not active and active. 545 * 546 * The actual lists are populated when we scan the network types that 547 * are supported on this device. 548 */ 549 private ArrayList<NetworkAgentInfo> mTypeLists[]; 550 551 public LegacyTypeTracker() { 552 mTypeLists = (ArrayList<NetworkAgentInfo>[]) 553 new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE + 1]; 554 } 555 556 public void addSupportedType(int type) { 557 if (mTypeLists[type] != null) { 558 throw new IllegalStateException( 559 "legacy list for type " + type + "already initialized"); 560 } 561 mTypeLists[type] = new ArrayList<NetworkAgentInfo>(); 562 } 563 564 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 565 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 566 } 567 568 public boolean isTypeSupported(int type) { 569 return isNetworkTypeValid(type) && mTypeLists[type] != null; 570 } 571 572 public NetworkAgentInfo getNetworkForType(int type) { 573 if (isTypeSupported(type) && !mTypeLists[type].isEmpty()) { 574 return mTypeLists[type].get(0); 575 } else { 576 return null; 577 } 578 } 579 580 public void add(int type, NetworkAgentInfo nai) { 581 if (!isTypeSupported(type)) { 582 return; // Invalid network type. 583 } 584 if (VDBG) log("Adding agent " + nai + " for legacy network type " + type); 585 586 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 587 if (list.contains(nai)) { 588 loge("Attempting to register duplicate agent for type " + type + ": " + nai); 589 return; 590 } 591 592 if (list.isEmpty() || isDefaultNetwork(nai)) { 593 if (VDBG) log("Sending connected broadcast for type " + type + 594 "isDefaultNetwork=" + isDefaultNetwork(nai)); 595 sendLegacyNetworkBroadcast(nai, true, type); 596 } 597 list.add(nai); 598 } 599 600 public void remove(NetworkAgentInfo nai) { 601 if (VDBG) log("Removing agent " + nai); 602 for (int type = 0; type < mTypeLists.length; type++) { 603 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 604 if (list == null || list.isEmpty()) { 605 continue; 606 } 607 608 boolean wasFirstNetwork = false; 609 if (list.get(0).equals(nai)) { 610 // This network was the first in the list. Send broadcast. 611 wasFirstNetwork = true; 612 } 613 list.remove(nai); 614 615 if (wasFirstNetwork || isDefaultNetwork(nai)) { 616 if (VDBG) log("Sending disconnected broadcast for type " + type + 617 "isDefaultNetwork=" + isDefaultNetwork(nai)); 618 sendLegacyNetworkBroadcast(nai, false, type); 619 } 620 621 if (!list.isEmpty() && wasFirstNetwork) { 622 if (VDBG) log("Other network available for type " + type + 623 ", sending connected broadcast"); 624 sendLegacyNetworkBroadcast(list.get(0), false, type); 625 } 626 } 627 } 628 } 629 private LegacyTypeTracker mLegacyTypeTracker = new LegacyTypeTracker(); 630 631 public ConnectivityService(Context context, INetworkManagementService netd, 632 INetworkStatsService statsService, INetworkPolicyManager policyManager) { 633 // Currently, omitting a NetworkFactory will create one internally 634 // TODO: create here when we have cleaner WiMAX support 635 this(context, netd, statsService, policyManager, null); 636 } 637 638 public ConnectivityService(Context context, INetworkManagementService netManager, 639 INetworkStatsService statsService, INetworkPolicyManager policyManager, 640 NetworkFactory netFactory) { 641 if (DBG) log("ConnectivityService starting up"); 642 643 NetworkCapabilities netCap = new NetworkCapabilities(); 644 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 645 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 646 mDefaultRequest = new NetworkRequest(netCap, TYPE_NONE, nextNetworkRequestId()); 647 NetworkRequestInfo nri = new NetworkRequestInfo(null, mDefaultRequest, new Binder(), 648 NetworkRequestInfo.REQUEST); 649 mNetworkRequests.put(mDefaultRequest, nri); 650 651 HandlerThread handlerThread = new HandlerThread("ConnectivityServiceThread"); 652 handlerThread.start(); 653 mHandler = new InternalHandler(handlerThread.getLooper()); 654 mTrackerHandler = new NetworkStateTrackerHandler(handlerThread.getLooper()); 655 656 if (netFactory == null) { 657 netFactory = new DefaultNetworkFactory(context, mTrackerHandler); 658 } 659 660 // setup our unique device name 661 if (TextUtils.isEmpty(SystemProperties.get("net.hostname"))) { 662 String id = Settings.Secure.getString(context.getContentResolver(), 663 Settings.Secure.ANDROID_ID); 664 if (id != null && id.length() > 0) { 665 String name = new String("android-").concat(id); 666 SystemProperties.set("net.hostname", name); 667 } 668 } 669 670 // read our default dns server ip 671 String dns = Settings.Global.getString(context.getContentResolver(), 672 Settings.Global.DEFAULT_DNS_SERVER); 673 if (dns == null || dns.length() == 0) { 674 dns = context.getResources().getString( 675 com.android.internal.R.string.config_default_dns_server); 676 } 677 try { 678 mDefaultDns = NetworkUtils.numericToInetAddress(dns); 679 } catch (IllegalArgumentException e) { 680 loge("Error setting defaultDns using " + dns); 681 } 682 683 mContext = checkNotNull(context, "missing Context"); 684 mNetd = checkNotNull(netManager, "missing INetworkManagementService"); 685 mPolicyManager = checkNotNull(policyManager, "missing INetworkPolicyManager"); 686 mKeyStore = KeyStore.getInstance(); 687 mTelephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 688 689 try { 690 mPolicyManager.registerListener(mPolicyListener); 691 } catch (RemoteException e) { 692 // ouch, no rules updates means some processes may never get network 693 loge("unable to register INetworkPolicyListener" + e.toString()); 694 } 695 696 final PowerManager powerManager = (PowerManager) context.getSystemService( 697 Context.POWER_SERVICE); 698 mNetTransitionWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); 699 mNetTransitionWakeLockTimeout = mContext.getResources().getInteger( 700 com.android.internal.R.integer.config_networkTransitionTimeout); 701 702 mNetTrackers = new NetworkStateTracker[ 703 ConnectivityManager.MAX_NETWORK_TYPE+1]; 704 mCurrentLinkProperties = new LinkProperties[ConnectivityManager.MAX_NETWORK_TYPE+1]; 705 706 mRadioAttributes = new RadioAttributes[ConnectivityManager.MAX_RADIO_TYPE+1]; 707 mNetConfigs = new NetworkConfig[ConnectivityManager.MAX_NETWORK_TYPE+1]; 708 709 // Load device network attributes from resources 710 String[] raStrings = context.getResources().getStringArray( 711 com.android.internal.R.array.radioAttributes); 712 for (String raString : raStrings) { 713 RadioAttributes r = new RadioAttributes(raString); 714 if (VDBG) log("raString=" + raString + " r=" + r); 715 if (r.mType > ConnectivityManager.MAX_RADIO_TYPE) { 716 loge("Error in radioAttributes - ignoring attempt to define type " + r.mType); 717 continue; 718 } 719 if (mRadioAttributes[r.mType] != null) { 720 loge("Error in radioAttributes - ignoring attempt to redefine type " + 721 r.mType); 722 continue; 723 } 724 mRadioAttributes[r.mType] = r; 725 } 726 727 // TODO: What is the "correct" way to do determine if this is a wifi only device? 728 boolean wifiOnly = SystemProperties.getBoolean("ro.radio.noril", false); 729 log("wifiOnly=" + wifiOnly); 730 String[] naStrings = context.getResources().getStringArray( 731 com.android.internal.R.array.networkAttributes); 732 for (String naString : naStrings) { 733 try { 734 NetworkConfig n = new NetworkConfig(naString); 735 if (VDBG) log("naString=" + naString + " config=" + n); 736 if (n.type > ConnectivityManager.MAX_NETWORK_TYPE) { 737 loge("Error in networkAttributes - ignoring attempt to define type " + 738 n.type); 739 continue; 740 } 741 if (wifiOnly && ConnectivityManager.isNetworkTypeMobile(n.type)) { 742 log("networkAttributes - ignoring mobile as this dev is wifiOnly " + 743 n.type); 744 continue; 745 } 746 if (mNetConfigs[n.type] != null) { 747 loge("Error in networkAttributes - ignoring attempt to redefine type " + 748 n.type); 749 continue; 750 } 751 if (mRadioAttributes[n.radio] == null) { 752 loge("Error in networkAttributes - ignoring attempt to use undefined " + 753 "radio " + n.radio + " in network type " + n.type); 754 continue; 755 } 756 mLegacyTypeTracker.addSupportedType(n.type); 757 758 mNetConfigs[n.type] = n; 759 mNetworksDefined++; 760 } catch(Exception e) { 761 // ignore it - leave the entry null 762 } 763 } 764 if (VDBG) log("mNetworksDefined=" + mNetworksDefined); 765 766 mProtectedNetworks = new ArrayList<Integer>(); 767 int[] protectedNetworks = context.getResources().getIntArray( 768 com.android.internal.R.array.config_protectedNetworks); 769 for (int p : protectedNetworks) { 770 if ((mNetConfigs[p] != null) && (mProtectedNetworks.contains(p) == false)) { 771 mProtectedNetworks.add(p); 772 } else { 773 if (DBG) loge("Ignoring protectedNetwork " + p); 774 } 775 } 776 777 // high priority first 778 mPriorityList = new int[mNetworksDefined]; 779 { 780 int insertionPoint = mNetworksDefined-1; 781 int currentLowest = 0; 782 int nextLowest = 0; 783 while (insertionPoint > -1) { 784 for (NetworkConfig na : mNetConfigs) { 785 if (na == null) continue; 786 if (na.priority < currentLowest) continue; 787 if (na.priority > currentLowest) { 788 if (na.priority < nextLowest || nextLowest == 0) { 789 nextLowest = na.priority; 790 } 791 continue; 792 } 793 mPriorityList[insertionPoint--] = na.type; 794 } 795 currentLowest = nextLowest; 796 nextLowest = 0; 797 } 798 } 799 800 mNetRequestersPids = 801 (List<Integer> [])new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE+1]; 802 for (int i : mPriorityList) { 803 mNetRequestersPids[i] = new ArrayList<Integer>(); 804 } 805 806 mFeatureUsers = new ArrayList<FeatureUser>(); 807 808 mTestMode = SystemProperties.get("cm.test.mode").equals("true") 809 && SystemProperties.get("ro.build.type").equals("eng"); 810 811 // Create and start trackers for hard-coded networks 812 for (int targetNetworkType : mPriorityList) { 813 final NetworkConfig config = mNetConfigs[targetNetworkType]; 814 final NetworkStateTracker tracker; 815 try { 816 tracker = netFactory.createTracker(targetNetworkType, config); 817 mNetTrackers[targetNetworkType] = tracker; 818 } catch (IllegalArgumentException e) { 819 Slog.e(TAG, "Problem creating " + getNetworkTypeName(targetNetworkType) 820 + " tracker: " + e); 821 continue; 822 } 823 824 tracker.startMonitoring(context, mTrackerHandler); 825 if (config.isDefault()) { 826 tracker.reconnect(); 827 } 828 } 829 830 mTethering = new Tethering(mContext, mNetd, statsService, this, mHandler.getLooper()); 831 832 //set up the listener for user state for creating user VPNs 833 IntentFilter intentFilter = new IntentFilter(); 834 intentFilter.addAction(Intent.ACTION_USER_STARTING); 835 intentFilter.addAction(Intent.ACTION_USER_STOPPING); 836 mContext.registerReceiverAsUser( 837 mUserIntentReceiver, UserHandle.ALL, intentFilter, null, null); 838 mClat = new Nat464Xlat(mContext, mNetd, this, mTrackerHandler); 839 840 try { 841 mNetd.registerObserver(mTethering); 842 mNetd.registerObserver(mDataActivityObserver); 843 mNetd.registerObserver(mClat); 844 } catch (RemoteException e) { 845 loge("Error registering observer :" + e); 846 } 847 848 if (DBG) { 849 mInetLog = new ArrayList(); 850 } 851 852 mSettingsObserver = new SettingsObserver(mHandler, EVENT_APPLY_GLOBAL_HTTP_PROXY); 853 mSettingsObserver.observe(mContext); 854 855 mDataConnectionStats = new DataConnectionStats(mContext); 856 mDataConnectionStats.startMonitoring(); 857 858 // start network sampling .. 859 Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED, null); 860 mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, 861 SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); 862 863 mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE); 864 setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); 865 866 IntentFilter filter = new IntentFilter(); 867 filter.addAction(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 868 mContext.registerReceiver( 869 new BroadcastReceiver() { 870 @Override 871 public void onReceive(Context context, Intent intent) { 872 String action = intent.getAction(); 873 if (action.equals(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED)) { 874 mHandler.sendMessage(mHandler.obtainMessage 875 (EVENT_SAMPLE_INTERVAL_ELAPSED)); 876 } 877 } 878 }, 879 new IntentFilter(filter)); 880 881 mPacManager = new PacManager(mContext, mHandler, EVENT_PROXY_HAS_CHANGED); 882 883 filter = new IntentFilter(); 884 filter.addAction(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 885 mContext.registerReceiver(mProvisioningReceiver, filter); 886 887 mAppOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE); 888 889 mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); 890 } 891 892 private synchronized int nextNetworkRequestId() { 893 return mNextNetworkRequestId++; 894 } 895 896 private synchronized int nextNetId() { 897 int netId = mNextNetId; 898 if (++mNextNetId > MAX_NET_ID) mNextNetId = MIN_NET_ID; 899 return netId; 900 } 901 902 /** 903 * Factory that creates {@link NetworkStateTracker} instances using given 904 * {@link NetworkConfig}. 905 * 906 * TODO - this is obsolete and will be deleted. It's replaced by the 907 * registerNetworkFactory call and protocol. 908 * @Deprecated in favor of registerNetworkFactory dynamic bindings 909 */ 910 public interface NetworkFactory { 911 public NetworkStateTracker createTracker(int targetNetworkType, NetworkConfig config); 912 } 913 914 private static class DefaultNetworkFactory implements NetworkFactory { 915 private final Context mContext; 916 private final Handler mTrackerHandler; 917 918 public DefaultNetworkFactory(Context context, Handler trackerHandler) { 919 mContext = context; 920 mTrackerHandler = trackerHandler; 921 } 922 923 @Override 924 public NetworkStateTracker createTracker(int targetNetworkType, NetworkConfig config) { 925 switch (config.radio) { 926 case TYPE_WIMAX: 927 return makeWimaxStateTracker(mContext, mTrackerHandler); 928 case TYPE_PROXY: 929 return new ProxyDataTracker(); 930 default: 931 throw new IllegalArgumentException( 932 "Trying to create a NetworkStateTracker for an unknown radio type: " 933 + config.radio); 934 } 935 } 936 } 937 938 /** 939 * Loads external WiMAX library and registers as system service, returning a 940 * {@link NetworkStateTracker} for WiMAX. Caller is still responsible for 941 * invoking {@link NetworkStateTracker#startMonitoring(Context, Handler)}. 942 */ 943 private static NetworkStateTracker makeWimaxStateTracker( 944 Context context, Handler trackerHandler) { 945 // Initialize Wimax 946 DexClassLoader wimaxClassLoader; 947 Class wimaxStateTrackerClass = null; 948 Class wimaxServiceClass = null; 949 Class wimaxManagerClass; 950 String wimaxJarLocation; 951 String wimaxLibLocation; 952 String wimaxManagerClassName; 953 String wimaxServiceClassName; 954 String wimaxStateTrackerClassName; 955 956 NetworkStateTracker wimaxStateTracker = null; 957 958 boolean isWimaxEnabled = context.getResources().getBoolean( 959 com.android.internal.R.bool.config_wimaxEnabled); 960 961 if (isWimaxEnabled) { 962 try { 963 wimaxJarLocation = context.getResources().getString( 964 com.android.internal.R.string.config_wimaxServiceJarLocation); 965 wimaxLibLocation = context.getResources().getString( 966 com.android.internal.R.string.config_wimaxNativeLibLocation); 967 wimaxManagerClassName = context.getResources().getString( 968 com.android.internal.R.string.config_wimaxManagerClassname); 969 wimaxServiceClassName = context.getResources().getString( 970 com.android.internal.R.string.config_wimaxServiceClassname); 971 wimaxStateTrackerClassName = context.getResources().getString( 972 com.android.internal.R.string.config_wimaxStateTrackerClassname); 973 974 if (DBG) log("wimaxJarLocation: " + wimaxJarLocation); 975 wimaxClassLoader = new DexClassLoader(wimaxJarLocation, 976 new ContextWrapper(context).getCacheDir().getAbsolutePath(), 977 wimaxLibLocation, ClassLoader.getSystemClassLoader()); 978 979 try { 980 wimaxManagerClass = wimaxClassLoader.loadClass(wimaxManagerClassName); 981 wimaxStateTrackerClass = wimaxClassLoader.loadClass(wimaxStateTrackerClassName); 982 wimaxServiceClass = wimaxClassLoader.loadClass(wimaxServiceClassName); 983 } catch (ClassNotFoundException ex) { 984 loge("Exception finding Wimax classes: " + ex.toString()); 985 return null; 986 } 987 } catch(Resources.NotFoundException ex) { 988 loge("Wimax Resources does not exist!!! "); 989 return null; 990 } 991 992 try { 993 if (DBG) log("Starting Wimax Service... "); 994 995 Constructor wmxStTrkrConst = wimaxStateTrackerClass.getConstructor 996 (new Class[] {Context.class, Handler.class}); 997 wimaxStateTracker = (NetworkStateTracker) wmxStTrkrConst.newInstance( 998 context, trackerHandler); 999 1000 Constructor wmxSrvConst = wimaxServiceClass.getDeclaredConstructor 1001 (new Class[] {Context.class, wimaxStateTrackerClass}); 1002 wmxSrvConst.setAccessible(true); 1003 IBinder svcInvoker = (IBinder)wmxSrvConst.newInstance(context, wimaxStateTracker); 1004 wmxSrvConst.setAccessible(false); 1005 1006 ServiceManager.addService(WimaxManagerConstants.WIMAX_SERVICE, svcInvoker); 1007 1008 } catch(Exception ex) { 1009 loge("Exception creating Wimax classes: " + ex.toString()); 1010 return null; 1011 } 1012 } else { 1013 loge("Wimax is not enabled or not added to the network attributes!!! "); 1014 return null; 1015 } 1016 1017 return wimaxStateTracker; 1018 } 1019 1020 private int getConnectivityChangeDelay() { 1021 final ContentResolver cr = mContext.getContentResolver(); 1022 1023 /** Check system properties for the default value then use secure settings value, if any. */ 1024 int defaultDelay = SystemProperties.getInt( 1025 "conn." + Settings.Global.CONNECTIVITY_CHANGE_DELAY, 1026 ConnectivityManager.CONNECTIVITY_CHANGE_DELAY_DEFAULT); 1027 return Settings.Global.getInt(cr, Settings.Global.CONNECTIVITY_CHANGE_DELAY, 1028 defaultDelay); 1029 } 1030 1031 private boolean teardown(NetworkStateTracker netTracker) { 1032 if (netTracker.teardown()) { 1033 netTracker.setTeardownRequested(true); 1034 return true; 1035 } else { 1036 return false; 1037 } 1038 } 1039 1040 /** 1041 * Check if UID should be blocked from using the network represented by the 1042 * given {@link NetworkStateTracker}. 1043 */ 1044 private boolean isNetworkBlocked(int networkType, int uid) { 1045 final boolean networkCostly; 1046 final int uidRules; 1047 1048 LinkProperties lp = getLinkPropertiesForType(networkType); 1049 final String iface = (lp == null ? "" : lp.getInterfaceName()); 1050 synchronized (mRulesLock) { 1051 networkCostly = mMeteredIfaces.contains(iface); 1052 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 1053 } 1054 1055 if (networkCostly && (uidRules & RULE_REJECT_METERED) != 0) { 1056 return true; 1057 } 1058 1059 // no restrictive rules; network is visible 1060 return false; 1061 } 1062 1063 /** 1064 * Return a filtered {@link NetworkInfo}, potentially marked 1065 * {@link DetailedState#BLOCKED} based on 1066 * {@link #isNetworkBlocked}. 1067 */ 1068 private NetworkInfo getFilteredNetworkInfo(int networkType, int uid) { 1069 NetworkInfo info = getNetworkInfoForType(networkType); 1070 return getFilteredNetworkInfo(info, networkType, uid); 1071 } 1072 1073 private NetworkInfo getFilteredNetworkInfo(NetworkInfo info, int networkType, int uid) { 1074 if (isNetworkBlocked(networkType, uid)) { 1075 // network is blocked; clone and override state 1076 info = new NetworkInfo(info); 1077 info.setDetailedState(DetailedState.BLOCKED, null, null); 1078 } 1079 if (mLockdownTracker != null) { 1080 info = mLockdownTracker.augmentNetworkInfo(info); 1081 } 1082 return info; 1083 } 1084 1085 /** 1086 * Return NetworkInfo for the active (i.e., connected) network interface. 1087 * It is assumed that at most one network is active at a time. If more 1088 * than one is active, it is indeterminate which will be returned. 1089 * @return the info for the active network, or {@code null} if none is 1090 * active 1091 */ 1092 @Override 1093 public NetworkInfo getActiveNetworkInfo() { 1094 enforceAccessPermission(); 1095 final int uid = Binder.getCallingUid(); 1096 return getNetworkInfo(mActiveDefaultNetwork, uid); 1097 } 1098 1099 // only called when the default request is satisfied 1100 private void updateActiveDefaultNetwork(NetworkAgentInfo nai) { 1101 if (nai != null) { 1102 mActiveDefaultNetwork = nai.networkInfo.getType(); 1103 } else { 1104 mActiveDefaultNetwork = TYPE_NONE; 1105 } 1106 } 1107 1108 /** 1109 * Find the first Provisioning network. 1110 * 1111 * @return NetworkInfo or null if none. 1112 */ 1113 private NetworkInfo getProvisioningNetworkInfo() { 1114 enforceAccessPermission(); 1115 1116 // Find the first Provisioning Network 1117 NetworkInfo provNi = null; 1118 for (NetworkInfo ni : getAllNetworkInfo()) { 1119 if (ni.isConnectedToProvisioningNetwork()) { 1120 provNi = ni; 1121 break; 1122 } 1123 } 1124 if (DBG) log("getProvisioningNetworkInfo: X provNi=" + provNi); 1125 return provNi; 1126 } 1127 1128 /** 1129 * Find the first Provisioning network or the ActiveDefaultNetwork 1130 * if there is no Provisioning network 1131 * 1132 * @return NetworkInfo or null if none. 1133 */ 1134 @Override 1135 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 1136 enforceAccessPermission(); 1137 1138 NetworkInfo provNi = getProvisioningNetworkInfo(); 1139 if (provNi == null) { 1140 final int uid = Binder.getCallingUid(); 1141 provNi = getNetworkInfo(mActiveDefaultNetwork, uid); 1142 } 1143 if (DBG) log("getProvisioningOrActiveNetworkInfo: X provNi=" + provNi); 1144 return provNi; 1145 } 1146 1147 public NetworkInfo getActiveNetworkInfoUnfiltered() { 1148 enforceAccessPermission(); 1149 if (isNetworkTypeValid(mActiveDefaultNetwork)) { 1150 return getNetworkInfoForType(mActiveDefaultNetwork); 1151 } 1152 return null; 1153 } 1154 1155 @Override 1156 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 1157 enforceConnectivityInternalPermission(); 1158 return getNetworkInfo(mActiveDefaultNetwork, uid); 1159 } 1160 1161 @Override 1162 public NetworkInfo getNetworkInfo(int networkType) { 1163 enforceAccessPermission(); 1164 final int uid = Binder.getCallingUid(); 1165 return getNetworkInfo(networkType, uid); 1166 } 1167 1168 private NetworkInfo getNetworkInfo(int networkType, int uid) { 1169 NetworkInfo info = null; 1170 if (isNetworkTypeValid(networkType)) { 1171 if (getNetworkInfoForType(networkType) != null) { 1172 info = getFilteredNetworkInfo(networkType, uid); 1173 } 1174 } 1175 return info; 1176 } 1177 1178 @Override 1179 public NetworkInfo getNetworkInfoForNetwork(Network network) { 1180 enforceAccessPermission(); 1181 if (network == null) return null; 1182 1183 final int uid = Binder.getCallingUid(); 1184 NetworkAgentInfo nai = null; 1185 synchronized (mNetworkForNetId) { 1186 nai = mNetworkForNetId.get(network.netId); 1187 } 1188 if (nai == null) return null; 1189 synchronized (nai) { 1190 if (nai.networkInfo == null) return null; 1191 1192 return getFilteredNetworkInfo(nai.networkInfo, nai.networkInfo.getType(), uid); 1193 } 1194 } 1195 1196 @Override 1197 public NetworkInfo[] getAllNetworkInfo() { 1198 enforceAccessPermission(); 1199 final int uid = Binder.getCallingUid(); 1200 final ArrayList<NetworkInfo> result = Lists.newArrayList(); 1201 synchronized (mRulesLock) { 1202 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1203 networkType++) { 1204 if (getNetworkInfoForType(networkType) != null) { 1205 result.add(getFilteredNetworkInfo(networkType, uid)); 1206 } 1207 } 1208 } 1209 return result.toArray(new NetworkInfo[result.size()]); 1210 } 1211 1212 @Override 1213 public Network[] getAllNetworks() { 1214 enforceAccessPermission(); 1215 final ArrayList<Network> result = new ArrayList(); 1216 synchronized (mNetworkForNetId) { 1217 for (int i = 0; i < mNetworkForNetId.size(); i++) { 1218 result.add(new Network(mNetworkForNetId.valueAt(i).network)); 1219 } 1220 } 1221 return result.toArray(new Network[result.size()]); 1222 } 1223 1224 @Override 1225 public boolean isNetworkSupported(int networkType) { 1226 enforceAccessPermission(); 1227 return (isNetworkTypeValid(networkType) && (getNetworkInfoForType(networkType) != null)); 1228 } 1229 1230 /** 1231 * Return LinkProperties for the active (i.e., connected) default 1232 * network interface. It is assumed that at most one default network 1233 * is active at a time. If more than one is active, it is indeterminate 1234 * which will be returned. 1235 * @return the ip properties for the active network, or {@code null} if 1236 * none is active 1237 */ 1238 @Override 1239 public LinkProperties getActiveLinkProperties() { 1240 return getLinkPropertiesForType(mActiveDefaultNetwork); 1241 } 1242 1243 @Override 1244 public LinkProperties getLinkPropertiesForType(int networkType) { 1245 enforceAccessPermission(); 1246 if (isNetworkTypeValid(networkType)) { 1247 return getLinkPropertiesForTypeInternal(networkType); 1248 } 1249 return null; 1250 } 1251 1252 // TODO - this should be ALL networks 1253 @Override 1254 public LinkProperties getLinkProperties(Network network) { 1255 enforceAccessPermission(); 1256 NetworkAgentInfo nai = null; 1257 synchronized (mNetworkForNetId) { 1258 nai = mNetworkForNetId.get(network.netId); 1259 } 1260 1261 if (nai != null) { 1262 synchronized (nai) { 1263 return new LinkProperties(nai.linkProperties); 1264 } 1265 } 1266 return null; 1267 } 1268 1269 @Override 1270 public NetworkCapabilities getNetworkCapabilities(Network network) { 1271 enforceAccessPermission(); 1272 NetworkAgentInfo nai = null; 1273 synchronized (mNetworkForNetId) { 1274 nai = mNetworkForNetId.get(network.netId); 1275 } 1276 if (nai != null) { 1277 synchronized (nai) { 1278 return new NetworkCapabilities(nai.networkCapabilities); 1279 } 1280 } 1281 return null; 1282 } 1283 1284 @Override 1285 public NetworkState[] getAllNetworkState() { 1286 enforceAccessPermission(); 1287 final int uid = Binder.getCallingUid(); 1288 final ArrayList<NetworkState> result = Lists.newArrayList(); 1289 synchronized (mRulesLock) { 1290 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1291 networkType++) { 1292 if (getNetworkInfoForType(networkType) != null) { 1293 final NetworkInfo info = getFilteredNetworkInfo(networkType, uid); 1294 final LinkProperties lp = getLinkPropertiesForTypeInternal(networkType); 1295 final NetworkCapabilities netcap = getNetworkCapabilitiesForType(networkType); 1296 result.add(new NetworkState(info, lp, netcap)); 1297 } 1298 } 1299 } 1300 return result.toArray(new NetworkState[result.size()]); 1301 } 1302 1303 private NetworkState getNetworkStateUnchecked(int networkType) { 1304 if (isNetworkTypeValid(networkType)) { 1305 NetworkInfo info = getNetworkInfoForType(networkType); 1306 if (info != null) { 1307 return new NetworkState(info, 1308 getLinkPropertiesForTypeInternal(networkType), 1309 getNetworkCapabilitiesForType(networkType)); 1310 } 1311 } 1312 return null; 1313 } 1314 1315 @Override 1316 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1317 enforceAccessPermission(); 1318 1319 final long token = Binder.clearCallingIdentity(); 1320 try { 1321 final NetworkState state = getNetworkStateUnchecked(mActiveDefaultNetwork); 1322 if (state != null) { 1323 try { 1324 return mPolicyManager.getNetworkQuotaInfo(state); 1325 } catch (RemoteException e) { 1326 } 1327 } 1328 return null; 1329 } finally { 1330 Binder.restoreCallingIdentity(token); 1331 } 1332 } 1333 1334 @Override 1335 public boolean isActiveNetworkMetered() { 1336 enforceAccessPermission(); 1337 final long token = Binder.clearCallingIdentity(); 1338 try { 1339 return isNetworkMeteredUnchecked(mActiveDefaultNetwork); 1340 } finally { 1341 Binder.restoreCallingIdentity(token); 1342 } 1343 } 1344 1345 private boolean isNetworkMeteredUnchecked(int networkType) { 1346 final NetworkState state = getNetworkStateUnchecked(networkType); 1347 if (state != null) { 1348 try { 1349 return mPolicyManager.isNetworkMetered(state); 1350 } catch (RemoteException e) { 1351 } 1352 } 1353 return false; 1354 } 1355 1356 private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { 1357 @Override 1358 public void interfaceClassDataActivityChanged(String label, boolean active, long tsNanos) { 1359 int deviceType = Integer.parseInt(label); 1360 sendDataActivityBroadcast(deviceType, active, tsNanos); 1361 } 1362 }; 1363 1364 /** 1365 * Used to notice when the calling process dies so we can self-expire 1366 * 1367 * Also used to know if the process has cleaned up after itself when 1368 * our auto-expire timer goes off. The timer has a link to an object. 1369 * 1370 */ 1371 private class FeatureUser implements IBinder.DeathRecipient { 1372 int mNetworkType; 1373 String mFeature; 1374 IBinder mBinder; 1375 int mPid; 1376 int mUid; 1377 long mCreateTime; 1378 1379 FeatureUser(int type, String feature, IBinder binder) { 1380 super(); 1381 mNetworkType = type; 1382 mFeature = feature; 1383 mBinder = binder; 1384 mPid = getCallingPid(); 1385 mUid = getCallingUid(); 1386 mCreateTime = System.currentTimeMillis(); 1387 1388 try { 1389 mBinder.linkToDeath(this, 0); 1390 } catch (RemoteException e) { 1391 binderDied(); 1392 } 1393 } 1394 1395 void unlinkDeathRecipient() { 1396 mBinder.unlinkToDeath(this, 0); 1397 } 1398 1399 public void binderDied() { 1400 log("ConnectivityService FeatureUser binderDied(" + 1401 mNetworkType + ", " + mFeature + ", " + mBinder + "), created " + 1402 (System.currentTimeMillis() - mCreateTime) + " mSec ago"); 1403 stopUsingNetworkFeature(this, false); 1404 } 1405 1406 public void expire() { 1407 if (VDBG) { 1408 log("ConnectivityService FeatureUser expire(" + 1409 mNetworkType + ", " + mFeature + ", " + mBinder +"), created " + 1410 (System.currentTimeMillis() - mCreateTime) + " mSec ago"); 1411 } 1412 stopUsingNetworkFeature(this, false); 1413 } 1414 1415 public boolean isSameUser(FeatureUser u) { 1416 if (u == null) return false; 1417 1418 return isSameUser(u.mPid, u.mUid, u.mNetworkType, u.mFeature); 1419 } 1420 1421 public boolean isSameUser(int pid, int uid, int networkType, String feature) { 1422 if ((mPid == pid) && (mUid == uid) && (mNetworkType == networkType) && 1423 TextUtils.equals(mFeature, feature)) { 1424 return true; 1425 } 1426 return false; 1427 } 1428 1429 public String toString() { 1430 return "FeatureUser("+mNetworkType+","+mFeature+","+mPid+","+mUid+"), created " + 1431 (System.currentTimeMillis() - mCreateTime) + " mSec ago"; 1432 } 1433 } 1434 1435 // javadoc from interface 1436 public int startUsingNetworkFeature(int networkType, String feature, 1437 IBinder binder) { 1438 long startTime = 0; 1439 if (DBG) { 1440 startTime = SystemClock.elapsedRealtime(); 1441 } 1442 if (VDBG) { 1443 log("startUsingNetworkFeature for net " + networkType + ": " + feature + ", uid=" 1444 + Binder.getCallingUid()); 1445 } 1446 enforceChangePermission(); 1447 try { 1448 if (!ConnectivityManager.isNetworkTypeValid(networkType) || 1449 mNetConfigs[networkType] == null) { 1450 return PhoneConstants.APN_REQUEST_FAILED; 1451 } 1452 1453 FeatureUser f = new FeatureUser(networkType, feature, binder); 1454 1455 // TODO - move this into individual networktrackers 1456 int usedNetworkType = convertFeatureToNetworkType(networkType, feature); 1457 1458 if (mLockdownEnabled) { 1459 // Since carrier APNs usually aren't available from VPN 1460 // endpoint, mark them as unavailable. 1461 return PhoneConstants.APN_TYPE_NOT_AVAILABLE; 1462 } 1463 1464 if (mProtectedNetworks.contains(usedNetworkType)) { 1465 enforceConnectivityInternalPermission(); 1466 } 1467 1468 // if UID is restricted, don't allow them to bring up metered APNs 1469 final boolean networkMetered = isNetworkMeteredUnchecked(usedNetworkType); 1470 final int uidRules; 1471 synchronized (mRulesLock) { 1472 uidRules = mUidRules.get(Binder.getCallingUid(), RULE_ALLOW_ALL); 1473 } 1474 if (networkMetered && (uidRules & RULE_REJECT_METERED) != 0) { 1475 return PhoneConstants.APN_REQUEST_FAILED; 1476 } 1477 1478 NetworkStateTracker network = mNetTrackers[usedNetworkType]; 1479 if (network != null) { 1480 Integer currentPid = new Integer(getCallingPid()); 1481 if (usedNetworkType != networkType) { 1482 NetworkInfo ni = network.getNetworkInfo(); 1483 1484 if (ni.isAvailable() == false) { 1485 if (!TextUtils.equals(feature,Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 1486 if (DBG) log("special network not available ni=" + ni.getTypeName()); 1487 return PhoneConstants.APN_TYPE_NOT_AVAILABLE; 1488 } else { 1489 // else make the attempt anyway - probably giving REQUEST_STARTED below 1490 if (DBG) { 1491 log("special network not available, but try anyway ni=" + 1492 ni.getTypeName()); 1493 } 1494 } 1495 } 1496 1497 int restoreTimer = getRestoreDefaultNetworkDelay(usedNetworkType); 1498 1499 synchronized(this) { 1500 boolean addToList = true; 1501 if (restoreTimer < 0) { 1502 // In case there is no timer is specified for the feature, 1503 // make sure we don't add duplicate entry with the same request. 1504 for (FeatureUser u : mFeatureUsers) { 1505 if (u.isSameUser(f)) { 1506 // Duplicate user is found. Do not add. 1507 addToList = false; 1508 break; 1509 } 1510 } 1511 } 1512 1513 if (addToList) mFeatureUsers.add(f); 1514 if (!mNetRequestersPids[usedNetworkType].contains(currentPid)) { 1515 // this gets used for per-pid dns when connected 1516 mNetRequestersPids[usedNetworkType].add(currentPid); 1517 } 1518 } 1519 1520 if (restoreTimer >= 0) { 1521 mHandler.sendMessageDelayed(mHandler.obtainMessage( 1522 EVENT_RESTORE_DEFAULT_NETWORK, f), restoreTimer); 1523 } 1524 1525 if ((ni.isConnectedOrConnecting() == true) && 1526 !network.isTeardownRequested()) { 1527 if (ni.isConnected() == true) { 1528 final long token = Binder.clearCallingIdentity(); 1529 try { 1530 // add the pid-specific dns 1531 handleDnsConfigurationChange(usedNetworkType); 1532 if (VDBG) log("special network already active"); 1533 } finally { 1534 Binder.restoreCallingIdentity(token); 1535 } 1536 return PhoneConstants.APN_ALREADY_ACTIVE; 1537 } 1538 if (VDBG) log("special network already connecting"); 1539 return PhoneConstants.APN_REQUEST_STARTED; 1540 } 1541 1542 // check if the radio in play can make another contact 1543 // assume if cannot for now 1544 1545 if (DBG) { 1546 log("startUsingNetworkFeature reconnecting to " + networkType + ": " + 1547 feature); 1548 } 1549 if (network.reconnect()) { 1550 if (DBG) log("startUsingNetworkFeature X: return APN_REQUEST_STARTED"); 1551 return PhoneConstants.APN_REQUEST_STARTED; 1552 } else { 1553 if (DBG) log("startUsingNetworkFeature X: return APN_REQUEST_FAILED"); 1554 return PhoneConstants.APN_REQUEST_FAILED; 1555 } 1556 } else { 1557 // need to remember this unsupported request so we respond appropriately on stop 1558 synchronized(this) { 1559 mFeatureUsers.add(f); 1560 if (!mNetRequestersPids[usedNetworkType].contains(currentPid)) { 1561 // this gets used for per-pid dns when connected 1562 mNetRequestersPids[usedNetworkType].add(currentPid); 1563 } 1564 } 1565 if (DBG) log("startUsingNetworkFeature X: return -1 unsupported feature."); 1566 return -1; 1567 } 1568 } 1569 if (DBG) log("startUsingNetworkFeature X: return APN_TYPE_NOT_AVAILABLE"); 1570 return PhoneConstants.APN_TYPE_NOT_AVAILABLE; 1571 } finally { 1572 if (DBG) { 1573 final long execTime = SystemClock.elapsedRealtime() - startTime; 1574 if (execTime > 250) { 1575 loge("startUsingNetworkFeature took too long: " + execTime + "ms"); 1576 } else { 1577 if (VDBG) log("startUsingNetworkFeature took " + execTime + "ms"); 1578 } 1579 } 1580 } 1581 } 1582 1583 // javadoc from interface 1584 public int stopUsingNetworkFeature(int networkType, String feature) { 1585 enforceChangePermission(); 1586 1587 int pid = getCallingPid(); 1588 int uid = getCallingUid(); 1589 1590 FeatureUser u = null; 1591 boolean found = false; 1592 1593 synchronized(this) { 1594 for (FeatureUser x : mFeatureUsers) { 1595 if (x.isSameUser(pid, uid, networkType, feature)) { 1596 u = x; 1597 found = true; 1598 break; 1599 } 1600 } 1601 } 1602 if (found && u != null) { 1603 if (VDBG) log("stopUsingNetworkFeature: X"); 1604 // stop regardless of how many other time this proc had called start 1605 return stopUsingNetworkFeature(u, true); 1606 } else { 1607 // none found! 1608 if (VDBG) log("stopUsingNetworkFeature: X not a live request, ignoring"); 1609 return 1; 1610 } 1611 } 1612 1613 private int stopUsingNetworkFeature(FeatureUser u, boolean ignoreDups) { 1614 int networkType = u.mNetworkType; 1615 String feature = u.mFeature; 1616 int pid = u.mPid; 1617 int uid = u.mUid; 1618 1619 NetworkStateTracker tracker = null; 1620 boolean callTeardown = false; // used to carry our decision outside of sync block 1621 1622 if (VDBG) { 1623 log("stopUsingNetworkFeature: net " + networkType + ": " + feature); 1624 } 1625 1626 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1627 if (DBG) { 1628 log("stopUsingNetworkFeature: net " + networkType + ": " + feature + 1629 ", net is invalid"); 1630 } 1631 return -1; 1632 } 1633 1634 // need to link the mFeatureUsers list with the mNetRequestersPids state in this 1635 // sync block 1636 synchronized(this) { 1637 // check if this process still has an outstanding start request 1638 if (!mFeatureUsers.contains(u)) { 1639 if (VDBG) { 1640 log("stopUsingNetworkFeature: this process has no outstanding requests" + 1641 ", ignoring"); 1642 } 1643 return 1; 1644 } 1645 u.unlinkDeathRecipient(); 1646 mFeatureUsers.remove(mFeatureUsers.indexOf(u)); 1647 // If we care about duplicate requests, check for that here. 1648 // 1649 // This is done to support the extension of a request - the app 1650 // can request we start the network feature again and renew the 1651 // auto-shutoff delay. Normal "stop" calls from the app though 1652 // do not pay attention to duplicate requests - in effect the 1653 // API does not refcount and a single stop will counter multiple starts. 1654 if (ignoreDups == false) { 1655 for (FeatureUser x : mFeatureUsers) { 1656 if (x.isSameUser(u)) { 1657 if (VDBG) log("stopUsingNetworkFeature: dup is found, ignoring"); 1658 return 1; 1659 } 1660 } 1661 } 1662 1663 // TODO - move to individual network trackers 1664 int usedNetworkType = convertFeatureToNetworkType(networkType, feature); 1665 1666 tracker = mNetTrackers[usedNetworkType]; 1667 if (tracker == null) { 1668 if (DBG) { 1669 log("stopUsingNetworkFeature: net " + networkType + ": " + feature + 1670 " no known tracker for used net type " + usedNetworkType); 1671 } 1672 return -1; 1673 } 1674 if (usedNetworkType != networkType) { 1675 Integer currentPid = new Integer(pid); 1676 mNetRequestersPids[usedNetworkType].remove(currentPid); 1677 1678 final long token = Binder.clearCallingIdentity(); 1679 try { 1680 reassessPidDns(pid, true); 1681 } finally { 1682 Binder.restoreCallingIdentity(token); 1683 } 1684 flushVmDnsCache(); 1685 if (mNetRequestersPids[usedNetworkType].size() != 0) { 1686 if (VDBG) { 1687 log("stopUsingNetworkFeature: net " + networkType + ": " + feature + 1688 " others still using it"); 1689 } 1690 return 1; 1691 } 1692 callTeardown = true; 1693 } else { 1694 if (DBG) { 1695 log("stopUsingNetworkFeature: net " + networkType + ": " + feature + 1696 " not a known feature - dropping"); 1697 } 1698 } 1699 } 1700 1701 if (callTeardown) { 1702 if (DBG) { 1703 log("stopUsingNetworkFeature: teardown net " + networkType + ": " + feature); 1704 } 1705 tracker.teardown(); 1706 return 1; 1707 } else { 1708 return -1; 1709 } 1710 } 1711 1712 /** 1713 * Check if the address falls into any of currently running VPN's route's. 1714 */ 1715 private boolean isAddressUnderVpn(InetAddress address) { 1716 synchronized (mVpns) { 1717 synchronized (mRoutesLock) { 1718 int uid = UserHandle.getCallingUserId(); 1719 Vpn vpn = mVpns.get(uid); 1720 if (vpn == null) { 1721 return false; 1722 } 1723 1724 // Check if an exemption exists for this address. 1725 for (LinkAddress destination : mExemptAddresses) { 1726 if (!NetworkUtils.addressTypeMatches(address, destination.getAddress())) { 1727 continue; 1728 } 1729 1730 int prefix = destination.getPrefixLength(); 1731 InetAddress addrMasked = NetworkUtils.getNetworkPart(address, prefix); 1732 InetAddress destMasked = NetworkUtils.getNetworkPart(destination.getAddress(), 1733 prefix); 1734 1735 if (addrMasked.equals(destMasked)) { 1736 return false; 1737 } 1738 } 1739 1740 // Finally check if the address is covered by the VPN. 1741 return vpn.isAddressCovered(address); 1742 } 1743 } 1744 } 1745 1746 /** 1747 * @deprecated use requestRouteToHostAddress instead 1748 * 1749 * Ensure that a network route exists to deliver traffic to the specified 1750 * host via the specified network interface. 1751 * @param networkType the type of the network over which traffic to the 1752 * specified host is to be routed 1753 * @param hostAddress the IP address of the host to which the route is 1754 * desired 1755 * @return {@code true} on success, {@code false} on failure 1756 */ 1757 public boolean requestRouteToHost(int networkType, int hostAddress, String packageName) { 1758 InetAddress inetAddress = NetworkUtils.intToInetAddress(hostAddress); 1759 1760 if (inetAddress == null) { 1761 return false; 1762 } 1763 1764 return requestRouteToHostAddress(networkType, inetAddress.getAddress(), packageName); 1765 } 1766 1767 /** 1768 * Ensure that a network route exists to deliver traffic to the specified 1769 * host via the specified network interface. 1770 * @param networkType the type of the network over which traffic to the 1771 * specified host is to be routed 1772 * @param hostAddress the IP address of the host to which the route is 1773 * desired 1774 * @return {@code true} on success, {@code false} on failure 1775 */ 1776 public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress, 1777 String packageName) { 1778 enforceChangePermission(); 1779 if (mProtectedNetworks.contains(networkType)) { 1780 enforceConnectivityInternalPermission(); 1781 } 1782 boolean exempt; 1783 InetAddress addr; 1784 try { 1785 addr = InetAddress.getByAddress(hostAddress); 1786 } catch (UnknownHostException e) { 1787 if (DBG) log("requestRouteToHostAddress got " + e.toString()); 1788 return false; 1789 } 1790 // System apps may request routes bypassing the VPN to keep other networks working. 1791 if (Binder.getCallingUid() == Process.SYSTEM_UID) { 1792 exempt = true; 1793 } else { 1794 mAppOpsManager.checkPackage(Binder.getCallingUid(), packageName); 1795 try { 1796 ApplicationInfo info = mContext.getPackageManager().getApplicationInfo(packageName, 1797 0); 1798 exempt = (info.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 1799 } catch (NameNotFoundException e) { 1800 throw new IllegalArgumentException("Failed to find calling package details", e); 1801 } 1802 } 1803 1804 // Non-exempt routeToHost's can only be added if the host is not covered by the VPN. 1805 // This can be either because the VPN's routes do not cover the destination or a 1806 // system application added an exemption that covers this destination. 1807 if (!exempt && isAddressUnderVpn(addr)) { 1808 return false; 1809 } 1810 1811 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1812 if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); 1813 return false; 1814 } 1815 1816 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1817 if (nai == null) { 1818 if (mLegacyTypeTracker.isTypeSupported(networkType) == false) { 1819 if (DBG) log("requestRouteToHostAddress on unsupported network: " + networkType); 1820 } else { 1821 if (DBG) log("requestRouteToHostAddress on down network: " + networkType); 1822 } 1823 return false; 1824 } 1825 DetailedState netState; 1826 synchronized (nai) { 1827 netState = nai.networkInfo.getDetailedState(); 1828 } 1829 1830 if ((netState != DetailedState.CONNECTED && 1831 netState != DetailedState.CAPTIVE_PORTAL_CHECK)) { 1832 if (VDBG) { 1833 log("requestRouteToHostAddress on down network " 1834 + "(" + networkType + ") - dropped" 1835 + " netState=" + netState); 1836 } 1837 return false; 1838 } 1839 final int uid = Binder.getCallingUid(); 1840 final long token = Binder.clearCallingIdentity(); 1841 try { 1842 LinkProperties lp; 1843 int netId; 1844 synchronized (nai) { 1845 lp = nai.linkProperties; 1846 netId = nai.network.netId; 1847 } 1848 boolean ok = modifyRouteToAddress(lp, addr, ADD, TO_DEFAULT_TABLE, exempt, netId, uid); 1849 if (DBG) log("requestRouteToHostAddress ok=" + ok); 1850 return ok; 1851 } finally { 1852 Binder.restoreCallingIdentity(token); 1853 } 1854 } 1855 1856 private boolean addRoute(LinkProperties p, RouteInfo r, boolean toDefaultTable, 1857 boolean exempt, int netId) { 1858 return modifyRoute(p, r, 0, ADD, toDefaultTable, exempt, netId, false, UID_UNUSED); 1859 } 1860 1861 private boolean removeRoute(LinkProperties p, RouteInfo r, boolean toDefaultTable, int netId) { 1862 return modifyRoute(p, r, 0, REMOVE, toDefaultTable, UNEXEMPT, netId, false, UID_UNUSED); 1863 } 1864 1865 private boolean modifyRouteToAddress(LinkProperties lp, InetAddress addr, boolean doAdd, 1866 boolean toDefaultTable, boolean exempt, int netId, int uid) { 1867 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), addr); 1868 if (bestRoute == null) { 1869 bestRoute = RouteInfo.makeHostRoute(addr, lp.getInterfaceName()); 1870 } else { 1871 String iface = bestRoute.getInterface(); 1872 if (bestRoute.getGateway().equals(addr)) { 1873 // if there is no better route, add the implied hostroute for our gateway 1874 bestRoute = RouteInfo.makeHostRoute(addr, iface); 1875 } else { 1876 // if we will connect to this through another route, add a direct route 1877 // to it's gateway 1878 bestRoute = RouteInfo.makeHostRoute(addr, bestRoute.getGateway(), iface); 1879 } 1880 } 1881 return modifyRoute(lp, bestRoute, 0, doAdd, toDefaultTable, exempt, netId, true, uid); 1882 } 1883 1884 /* 1885 * TODO: Clean all this stuff up. Once we have UID-based routing, stuff will break due to 1886 * incorrect tracking of mAddedRoutes, so a cleanup becomes necessary and urgent. But at 1887 * the same time, there'll be no more need to track mAddedRoutes or mExemptAddresses, 1888 * or even have the concept of an exempt address, or do things like "selectBestRoute", or 1889 * determine "default" vs "secondary" table, etc., so the cleanup becomes possible. 1890 */ 1891 private boolean modifyRoute(LinkProperties lp, RouteInfo r, int cycleCount, boolean doAdd, 1892 boolean toDefaultTable, boolean exempt, int netId, boolean legacy, int uid) { 1893 if ((lp == null) || (r == null)) { 1894 if (DBG) log("modifyRoute got unexpected null: " + lp + ", " + r); 1895 return false; 1896 } 1897 1898 if (cycleCount > MAX_HOSTROUTE_CYCLE_COUNT) { 1899 loge("Error modifying route - too much recursion"); 1900 return false; 1901 } 1902 1903 String ifaceName = r.getInterface(); 1904 if(ifaceName == null) { 1905 loge("Error modifying route - no interface name"); 1906 return false; 1907 } 1908 if (r.hasGateway()) { 1909 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), r.getGateway()); 1910 if (bestRoute != null) { 1911 if (bestRoute.getGateway().equals(r.getGateway())) { 1912 // if there is no better route, add the implied hostroute for our gateway 1913 bestRoute = RouteInfo.makeHostRoute(r.getGateway(), ifaceName); 1914 } else { 1915 // if we will connect to our gateway through another route, add a direct 1916 // route to it's gateway 1917 bestRoute = RouteInfo.makeHostRoute(r.getGateway(), 1918 bestRoute.getGateway(), 1919 ifaceName); 1920 } 1921 modifyRoute(lp, bestRoute, cycleCount+1, doAdd, toDefaultTable, exempt, netId, 1922 legacy, uid); 1923 } 1924 } 1925 if (doAdd) { 1926 if (VDBG) log("Adding " + r + " for interface " + ifaceName); 1927 try { 1928 if (toDefaultTable) { 1929 synchronized (mRoutesLock) { 1930 // only track default table - only one apps can effect 1931 mAddedRoutes.add(r); 1932 if (legacy) { 1933 mNetd.addLegacyRouteForNetId(netId, r, uid); 1934 } else { 1935 mNetd.addRoute(netId, r); 1936 } 1937 if (exempt) { 1938 LinkAddress dest = r.getDestinationLinkAddress(); 1939 if (!mExemptAddresses.contains(dest)) { 1940 mNetd.setHostExemption(dest); 1941 mExemptAddresses.add(dest); 1942 } 1943 } 1944 } 1945 } else { 1946 if (legacy) { 1947 mNetd.addLegacyRouteForNetId(netId, r, uid); 1948 } else { 1949 mNetd.addRoute(netId, r); 1950 } 1951 } 1952 } catch (Exception e) { 1953 // never crash - catch them all 1954 if (DBG) loge("Exception trying to add a route: " + e); 1955 return false; 1956 } 1957 } else { 1958 // if we remove this one and there are no more like it, then refcount==0 and 1959 // we can remove it from the table 1960 if (toDefaultTable) { 1961 synchronized (mRoutesLock) { 1962 mAddedRoutes.remove(r); 1963 if (mAddedRoutes.contains(r) == false) { 1964 if (VDBG) log("Removing " + r + " for interface " + ifaceName); 1965 try { 1966 if (legacy) { 1967 mNetd.removeLegacyRouteForNetId(netId, r, uid); 1968 } else { 1969 mNetd.removeRoute(netId, r); 1970 } 1971 LinkAddress dest = r.getDestinationLinkAddress(); 1972 if (mExemptAddresses.contains(dest)) { 1973 mNetd.clearHostExemption(dest); 1974 mExemptAddresses.remove(dest); 1975 } 1976 } catch (Exception e) { 1977 // never crash - catch them all 1978 if (VDBG) loge("Exception trying to remove a route: " + e); 1979 return false; 1980 } 1981 } else { 1982 if (VDBG) log("not removing " + r + " as it's still in use"); 1983 } 1984 } 1985 } else { 1986 if (VDBG) log("Removing " + r + " for interface " + ifaceName); 1987 try { 1988 if (legacy) { 1989 mNetd.removeLegacyRouteForNetId(netId, r, uid); 1990 } else { 1991 mNetd.removeRoute(netId, r); 1992 } 1993 } catch (Exception e) { 1994 // never crash - catch them all 1995 if (VDBG) loge("Exception trying to remove a route: " + e); 1996 return false; 1997 } 1998 } 1999 } 2000 return true; 2001 } 2002 2003 public void setDataDependency(int networkType, boolean met) { 2004 enforceConnectivityInternalPermission(); 2005 2006 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_DEPENDENCY_MET, 2007 (met ? ENABLED : DISABLED), networkType)); 2008 } 2009 2010 private void handleSetDependencyMet(int networkType, boolean met) { 2011 if (mNetTrackers[networkType] != null) { 2012 if (DBG) { 2013 log("handleSetDependencyMet(" + networkType + ", " + met + ")"); 2014 } 2015 mNetTrackers[networkType].setDependencyMet(met); 2016 } 2017 } 2018 2019 private INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() { 2020 @Override 2021 public void onUidRulesChanged(int uid, int uidRules) { 2022 // caller is NPMS, since we only register with them 2023 if (LOGD_RULES) { 2024 log("onUidRulesChanged(uid=" + uid + ", uidRules=" + uidRules + ")"); 2025 } 2026 2027 synchronized (mRulesLock) { 2028 // skip update when we've already applied rules 2029 final int oldRules = mUidRules.get(uid, RULE_ALLOW_ALL); 2030 if (oldRules == uidRules) return; 2031 2032 mUidRules.put(uid, uidRules); 2033 } 2034 2035 // TODO: notify UID when it has requested targeted updates 2036 } 2037 2038 @Override 2039 public void onMeteredIfacesChanged(String[] meteredIfaces) { 2040 // caller is NPMS, since we only register with them 2041 if (LOGD_RULES) { 2042 log("onMeteredIfacesChanged(ifaces=" + Arrays.toString(meteredIfaces) + ")"); 2043 } 2044 2045 synchronized (mRulesLock) { 2046 mMeteredIfaces.clear(); 2047 for (String iface : meteredIfaces) { 2048 mMeteredIfaces.add(iface); 2049 } 2050 } 2051 } 2052 2053 @Override 2054 public void onRestrictBackgroundChanged(boolean restrictBackground) { 2055 // caller is NPMS, since we only register with them 2056 if (LOGD_RULES) { 2057 log("onRestrictBackgroundChanged(restrictBackground=" + restrictBackground + ")"); 2058 } 2059 2060 // kick off connectivity change broadcast for active network, since 2061 // global background policy change is radical. 2062 final int networkType = mActiveDefaultNetwork; 2063 if (isNetworkTypeValid(networkType)) { 2064 final NetworkStateTracker tracker = mNetTrackers[networkType]; 2065 if (tracker != null) { 2066 final NetworkInfo info = tracker.getNetworkInfo(); 2067 if (info != null && info.isConnected()) { 2068 sendConnectedBroadcast(info); 2069 } 2070 } 2071 } 2072 } 2073 }; 2074 2075 @Override 2076 public void setPolicyDataEnable(int networkType, boolean enabled) { 2077 // only someone like NPMS should only be calling us 2078 mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); 2079 2080 mHandler.sendMessage(mHandler.obtainMessage( 2081 EVENT_SET_POLICY_DATA_ENABLE, networkType, (enabled ? ENABLED : DISABLED))); 2082 } 2083 2084 private void handleSetPolicyDataEnable(int networkType, boolean enabled) { 2085 // TODO - handle this passing to factories 2086// if (isNetworkTypeValid(networkType)) { 2087// final NetworkStateTracker tracker = mNetTrackers[networkType]; 2088// if (tracker != null) { 2089// tracker.setPolicyDataEnable(enabled); 2090// } 2091// } 2092 } 2093 2094 private void enforceAccessPermission() { 2095 mContext.enforceCallingOrSelfPermission( 2096 android.Manifest.permission.ACCESS_NETWORK_STATE, 2097 "ConnectivityService"); 2098 } 2099 2100 private void enforceChangePermission() { 2101 mContext.enforceCallingOrSelfPermission( 2102 android.Manifest.permission.CHANGE_NETWORK_STATE, 2103 "ConnectivityService"); 2104 } 2105 2106 // TODO Make this a special check when it goes public 2107 private void enforceTetherChangePermission() { 2108 mContext.enforceCallingOrSelfPermission( 2109 android.Manifest.permission.CHANGE_NETWORK_STATE, 2110 "ConnectivityService"); 2111 } 2112 2113 private void enforceTetherAccessPermission() { 2114 mContext.enforceCallingOrSelfPermission( 2115 android.Manifest.permission.ACCESS_NETWORK_STATE, 2116 "ConnectivityService"); 2117 } 2118 2119 private void enforceConnectivityInternalPermission() { 2120 mContext.enforceCallingOrSelfPermission( 2121 android.Manifest.permission.CONNECTIVITY_INTERNAL, 2122 "ConnectivityService"); 2123 } 2124 2125 /** 2126 * Handle a {@code DISCONNECTED} event. If this pertains to the non-active 2127 * network, we ignore it. If it is for the active network, we send out a 2128 * broadcast. But first, we check whether it might be possible to connect 2129 * to a different network. 2130 * @param info the {@code NetworkInfo} for the network 2131 */ 2132 private void handleDisconnect(NetworkInfo info) { 2133 2134 int prevNetType = info.getType(); 2135 2136 mNetTrackers[prevNetType].setTeardownRequested(false); 2137 int thisNetId = mNetTrackers[prevNetType].getNetwork().netId; 2138 2139 // Remove idletimer previously setup in {@code handleConnect} 2140// Already in place in new function. This is dead code. 2141// if (mNetConfigs[prevNetType].isDefault()) { 2142// removeDataActivityTracking(prevNetType); 2143// } 2144 2145 /* 2146 * If the disconnected network is not the active one, then don't report 2147 * this as a loss of connectivity. What probably happened is that we're 2148 * getting the disconnect for a network that we explicitly disabled 2149 * in accordance with network preference policies. 2150 */ 2151 if (!mNetConfigs[prevNetType].isDefault()) { 2152 List<Integer> pids = mNetRequestersPids[prevNetType]; 2153 for (Integer pid : pids) { 2154 // will remove them because the net's no longer connected 2155 // need to do this now as only now do we know the pids and 2156 // can properly null things that are no longer referenced. 2157 reassessPidDns(pid.intValue(), false); 2158 } 2159 } 2160 2161 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 2162 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 2163 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 2164 if (info.isFailover()) { 2165 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 2166 info.setFailover(false); 2167 } 2168 if (info.getReason() != null) { 2169 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 2170 } 2171 if (info.getExtraInfo() != null) { 2172 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 2173 info.getExtraInfo()); 2174 } 2175 2176 if (mNetConfigs[prevNetType].isDefault()) { 2177 tryFailover(prevNetType); 2178 if (mActiveDefaultNetwork != -1) { 2179 NetworkInfo switchTo = mNetTrackers[mActiveDefaultNetwork].getNetworkInfo(); 2180 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, switchTo); 2181 } else { 2182 mDefaultInetConditionPublished = 0; // we're not connected anymore 2183 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 2184 } 2185 } 2186 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 2187 2188 // Reset interface if no other connections are using the same interface 2189 boolean doReset = true; 2190 LinkProperties linkProperties = mNetTrackers[prevNetType].getLinkProperties(); 2191 if (linkProperties != null) { 2192 String oldIface = linkProperties.getInterfaceName(); 2193 if (TextUtils.isEmpty(oldIface) == false) { 2194 for (NetworkStateTracker networkStateTracker : mNetTrackers) { 2195 if (networkStateTracker == null) continue; 2196 NetworkInfo networkInfo = networkStateTracker.getNetworkInfo(); 2197 if (networkInfo.isConnected() && networkInfo.getType() != prevNetType) { 2198 LinkProperties l = networkStateTracker.getLinkProperties(); 2199 if (l == null) continue; 2200 if (oldIface.equals(l.getInterfaceName())) { 2201 doReset = false; 2202 break; 2203 } 2204 } 2205 } 2206 } 2207 } 2208 2209 // do this before we broadcast the change 2210// Already done in new function. This is dead code. 2211// handleConnectivityChange(prevNetType, doReset); 2212 2213 final Intent immediateIntent = new Intent(intent); 2214 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 2215 sendStickyBroadcast(immediateIntent); 2216 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 2217 /* 2218 * If the failover network is already connected, then immediately send 2219 * out a followup broadcast indicating successful failover 2220 */ 2221 if (mActiveDefaultNetwork != -1) { 2222 sendConnectedBroadcastDelayed(mNetTrackers[mActiveDefaultNetwork].getNetworkInfo(), 2223 getConnectivityChangeDelay()); 2224 } 2225 try { 2226// mNetd.removeNetwork(thisNetId); 2227 } catch (Exception e) { 2228 loge("Exception removing network: " + e); 2229 } finally { 2230// mNetTrackers[prevNetType].setNetId(INVALID_NET_ID); 2231 } 2232 } 2233 2234 private void tryFailover(int prevNetType) { 2235 /* 2236 * If this is a default network, check if other defaults are available. 2237 * Try to reconnect on all available and let them hash it out when 2238 * more than one connects. 2239 */ 2240 if (mNetConfigs[prevNetType].isDefault()) { 2241 if (mActiveDefaultNetwork == prevNetType) { 2242 if (DBG) { 2243 log("tryFailover: set mActiveDefaultNetwork=-1, prevNetType=" + prevNetType); 2244 } 2245 mActiveDefaultNetwork = -1; 2246 try { 2247 mNetd.clearDefaultNetId(); 2248 } catch (Exception e) { 2249 loge("Exception clearing default network :" + e); 2250 } 2251 } 2252 2253 // don't signal a reconnect for anything lower or equal priority than our 2254 // current connected default 2255 // TODO - don't filter by priority now - nice optimization but risky 2256// int currentPriority = -1; 2257// if (mActiveDefaultNetwork != -1) { 2258// currentPriority = mNetConfigs[mActiveDefaultNetwork].mPriority; 2259// } 2260 2261 for (int checkType=0; checkType <= ConnectivityManager.MAX_NETWORK_TYPE; checkType++) { 2262 if (checkType == prevNetType) continue; 2263 if (mNetConfigs[checkType] == null) continue; 2264 if (!mNetConfigs[checkType].isDefault()) continue; 2265 if (mNetTrackers[checkType] == null) continue; 2266 2267// Enabling the isAvailable() optimization caused mobile to not get 2268// selected if it was in the middle of error handling. Specifically 2269// a moble connection that took 30 seconds to complete the DEACTIVATE_DATA_CALL 2270// would not be available and we wouldn't get connected to anything. 2271// So removing the isAvailable() optimization below for now. TODO: This 2272// optimization should work and we need to investigate why it doesn't work. 2273// This could be related to how DEACTIVATE_DATA_CALL is reporting its 2274// complete before it is really complete. 2275 2276// if (!mNetTrackers[checkType].isAvailable()) continue; 2277 2278// if (currentPriority >= mNetConfigs[checkType].mPriority) continue; 2279 2280 NetworkStateTracker checkTracker = mNetTrackers[checkType]; 2281 NetworkInfo checkInfo = checkTracker.getNetworkInfo(); 2282 if (!checkInfo.isConnectedOrConnecting() || checkTracker.isTeardownRequested()) { 2283 checkInfo.setFailover(true); 2284 checkTracker.reconnect(); 2285 } 2286 if (DBG) log("Attempting to switch to " + checkInfo.getTypeName()); 2287 } 2288 } 2289 } 2290 2291 public void sendConnectedBroadcast(NetworkInfo info) { 2292 enforceConnectivityInternalPermission(); 2293 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 2294 sendGeneralBroadcast(info, CONNECTIVITY_ACTION); 2295 } 2296 2297 private void sendConnectedBroadcastDelayed(NetworkInfo info, int delayMs) { 2298 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 2299 sendGeneralBroadcastDelayed(info, CONNECTIVITY_ACTION, delayMs); 2300 } 2301 2302 private void sendInetConditionBroadcast(NetworkInfo info) { 2303 sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION); 2304 } 2305 2306 private Intent makeGeneralIntent(NetworkInfo info, String bcastType) { 2307 if (mLockdownTracker != null) { 2308 info = mLockdownTracker.augmentNetworkInfo(info); 2309 } 2310 2311 Intent intent = new Intent(bcastType); 2312 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 2313 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 2314 if (info.isFailover()) { 2315 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 2316 info.setFailover(false); 2317 } 2318 if (info.getReason() != null) { 2319 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 2320 } 2321 if (info.getExtraInfo() != null) { 2322 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 2323 info.getExtraInfo()); 2324 } 2325 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 2326 return intent; 2327 } 2328 2329 private void sendGeneralBroadcast(NetworkInfo info, String bcastType) { 2330 sendStickyBroadcast(makeGeneralIntent(info, bcastType)); 2331 } 2332 2333 private void sendGeneralBroadcastDelayed(NetworkInfo info, String bcastType, int delayMs) { 2334 sendStickyBroadcastDelayed(makeGeneralIntent(info, bcastType), delayMs); 2335 } 2336 2337 private void sendDataActivityBroadcast(int deviceType, boolean active, long tsNanos) { 2338 Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); 2339 intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); 2340 intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); 2341 intent.putExtra(ConnectivityManager.EXTRA_REALTIME_NS, tsNanos); 2342 final long ident = Binder.clearCallingIdentity(); 2343 try { 2344 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, 2345 RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); 2346 } finally { 2347 Binder.restoreCallingIdentity(ident); 2348 } 2349 } 2350 2351 private void sendStickyBroadcast(Intent intent) { 2352 synchronized(this) { 2353 if (!mSystemReady) { 2354 mInitialBroadcast = new Intent(intent); 2355 } 2356 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2357 if (VDBG) { 2358 log("sendStickyBroadcast: action=" + intent.getAction()); 2359 } 2360 2361 final long ident = Binder.clearCallingIdentity(); 2362 try { 2363 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2364 } finally { 2365 Binder.restoreCallingIdentity(ident); 2366 } 2367 } 2368 } 2369 2370 private void sendStickyBroadcastDelayed(Intent intent, int delayMs) { 2371 if (delayMs <= 0) { 2372 sendStickyBroadcast(intent); 2373 } else { 2374 if (VDBG) { 2375 log("sendStickyBroadcastDelayed: delayMs=" + delayMs + ", action=" 2376 + intent.getAction()); 2377 } 2378 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2379 EVENT_SEND_STICKY_BROADCAST_INTENT, intent), delayMs); 2380 } 2381 } 2382 2383 void systemReady() { 2384 if (mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_WIFI)) { 2385 mCaptivePortalTracker = CaptivePortalTracker.makeCaptivePortalTracker(mContext, this); 2386 } 2387 loadGlobalProxy(); 2388 2389 synchronized(this) { 2390 mSystemReady = true; 2391 if (mInitialBroadcast != null) { 2392 mContext.sendStickyBroadcastAsUser(mInitialBroadcast, UserHandle.ALL); 2393 mInitialBroadcast = null; 2394 } 2395 } 2396 // load the global proxy at startup 2397 mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY)); 2398 2399 // Try bringing up tracker, but if KeyStore isn't ready yet, wait 2400 // for user to unlock device. 2401 if (!updateLockdownVpn()) { 2402 final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_PRESENT); 2403 mContext.registerReceiver(mUserPresentReceiver, filter); 2404 } 2405 } 2406 2407 private BroadcastReceiver mUserPresentReceiver = new BroadcastReceiver() { 2408 @Override 2409 public void onReceive(Context context, Intent intent) { 2410 // Try creating lockdown tracker, since user present usually means 2411 // unlocked keystore. 2412 if (updateLockdownVpn()) { 2413 mContext.unregisterReceiver(this); 2414 } 2415 } 2416 }; 2417 2418 private boolean isNewNetTypePreferredOverCurrentNetType(int type) { 2419 if (((type != mNetworkPreference) 2420 && (mNetConfigs[mActiveDefaultNetwork].priority > mNetConfigs[type].priority)) 2421 || (mNetworkPreference == mActiveDefaultNetwork)) { 2422 return false; 2423 } 2424 return true; 2425 } 2426 2427 private void handleConnect(NetworkInfo info) { 2428 final int newNetType = info.getType(); 2429 2430 // snapshot isFailover, because sendConnectedBroadcast() resets it 2431 boolean isFailover = info.isFailover(); 2432 final NetworkStateTracker thisNet = mNetTrackers[newNetType]; 2433 final String thisIface = thisNet.getLinkProperties().getInterfaceName(); 2434 2435 if (VDBG) { 2436 log("handleConnect: E newNetType=" + newNetType + " thisIface=" + thisIface 2437 + " isFailover" + isFailover); 2438 } 2439 2440 // if this is a default net and other default is running 2441 // kill the one not preferred 2442 if (mNetConfigs[newNetType].isDefault()) { 2443 if (mActiveDefaultNetwork != -1 && mActiveDefaultNetwork != newNetType) { 2444 if (isNewNetTypePreferredOverCurrentNetType(newNetType)) { 2445 String teardownPolicy = SystemProperties.get("net.teardownPolicy"); 2446 if (TextUtils.equals(teardownPolicy, "keep") == false) { 2447 // tear down the other 2448 NetworkStateTracker otherNet = 2449 mNetTrackers[mActiveDefaultNetwork]; 2450 if (DBG) { 2451 log("Policy requires " + otherNet.getNetworkInfo().getTypeName() + 2452 " teardown"); 2453 } 2454 if (!teardown(otherNet)) { 2455 loge("Network declined teardown request"); 2456 teardown(thisNet); 2457 return; 2458 } 2459 } else { 2460 //TODO - remove 2461 loge("network teardown skipped due to net.teardownPolicy setting"); 2462 } 2463 } else { 2464 // don't accept this one 2465 if (VDBG) { 2466 log("Not broadcasting CONNECT_ACTION " + 2467 "to torn down network " + info.getTypeName()); 2468 } 2469 teardown(thisNet); 2470 return; 2471 } 2472 } 2473 int thisNetId = nextNetId(); 2474 thisNet.setNetId(thisNetId); 2475 try { 2476// mNetd.createNetwork(thisNetId, thisIface); 2477 } catch (Exception e) { 2478 loge("Exception creating network :" + e); 2479 teardown(thisNet); 2480 return; 2481 } 2482// Already in place in new function. This is dead code. 2483// setupDataActivityTracking(newNetType); 2484 synchronized (ConnectivityService.this) { 2485 // have a new default network, release the transition wakelock in a second 2486 // if it's held. The second pause is to allow apps to reconnect over the 2487 // new network 2488 if (mNetTransitionWakeLock.isHeld()) { 2489 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2490 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 2491 mNetTransitionWakeLockSerialNumber, 0), 2492 1000); 2493 } 2494 } 2495 mActiveDefaultNetwork = newNetType; 2496 try { 2497 mNetd.setDefaultNetId(thisNetId); 2498 } catch (Exception e) { 2499 loge("Exception setting default network :" + e); 2500 } 2501 // this will cause us to come up initially as unconnected and switching 2502 // to connected after our normal pause unless somebody reports us as reall 2503 // disconnected 2504 mDefaultInetConditionPublished = 0; 2505 mDefaultConnectionSequence++; 2506 mInetConditionChangeInFlight = false; 2507 // Don't do this - if we never sign in stay, grey 2508 //reportNetworkCondition(mActiveDefaultNetwork, 100); 2509 updateNetworkSettings(thisNet); 2510 } else { 2511 int thisNetId = nextNetId(); 2512 thisNet.setNetId(thisNetId); 2513 try { 2514// mNetd.createNetwork(thisNetId, thisIface); 2515 } catch (Exception e) { 2516 loge("Exception creating network :" + e); 2517 teardown(thisNet); 2518 return; 2519 } 2520 } 2521 thisNet.setTeardownRequested(false); 2522// Already in place in new function. This is dead code. 2523// updateMtuSizeSettings(thisNet); 2524// handleConnectivityChange(newNetType, false); 2525 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 2526 2527 // notify battery stats service about this network 2528 if (thisIface != null) { 2529 try { 2530 BatteryStatsService.getService().noteNetworkInterfaceType(thisIface, newNetType); 2531 } catch (RemoteException e) { 2532 // ignored; service lives in system_server 2533 } 2534 } 2535 } 2536 2537 /** @hide */ 2538 @Override 2539 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 2540 enforceConnectivityInternalPermission(); 2541 if (DBG) log("captivePortalCheckCompleted: ni=" + info + " captive=" + isCaptivePortal); 2542// mNetTrackers[info.getType()].captivePortalCheckCompleted(isCaptivePortal); 2543 } 2544 2545 /** 2546 * Setup data activity tracking for the given network. 2547 * 2548 * Every {@code setupDataActivityTracking} should be paired with a 2549 * {@link #removeDataActivityTracking} for cleanup. 2550 */ 2551 private void setupDataActivityTracking(NetworkAgentInfo networkAgent) { 2552 final String iface = networkAgent.linkProperties.getInterfaceName(); 2553 2554 final int timeout; 2555 int type = ConnectivityManager.TYPE_NONE; 2556 2557 if (networkAgent.networkCapabilities.hasTransport( 2558 NetworkCapabilities.TRANSPORT_CELLULAR)) { 2559 timeout = Settings.Global.getInt(mContext.getContentResolver(), 2560 Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, 2561 5); 2562 type = ConnectivityManager.TYPE_MOBILE; 2563 } else if (networkAgent.networkCapabilities.hasTransport( 2564 NetworkCapabilities.TRANSPORT_WIFI)) { 2565 timeout = Settings.Global.getInt(mContext.getContentResolver(), 2566 Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, 2567 0); 2568 type = ConnectivityManager.TYPE_WIFI; 2569 } else { 2570 // do not track any other networks 2571 timeout = 0; 2572 } 2573 2574 if (timeout > 0 && iface != null && type != ConnectivityManager.TYPE_NONE) { 2575 try { 2576 mNetd.addIdleTimer(iface, timeout, type); 2577 } catch (Exception e) { 2578 // You shall not crash! 2579 loge("Exception in setupDataActivityTracking " + e); 2580 } 2581 } 2582 } 2583 2584 /** 2585 * Remove data activity tracking when network disconnects. 2586 */ 2587 private void removeDataActivityTracking(NetworkAgentInfo networkAgent) { 2588 final String iface = networkAgent.linkProperties.getInterfaceName(); 2589 final NetworkCapabilities caps = networkAgent.networkCapabilities; 2590 2591 if (iface != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) || 2592 caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))) { 2593 try { 2594 // the call fails silently if no idletimer setup for this interface 2595 mNetd.removeIdleTimer(iface); 2596 } catch (Exception e) { 2597 loge("Exception in removeDataActivityTracking " + e); 2598 } 2599 } 2600 } 2601 2602 /** 2603 * After a change in the connectivity state of a network. We're mainly 2604 * concerned with making sure that the list of DNS servers is set up 2605 * according to which networks are connected, and ensuring that the 2606 * right routing table entries exist. 2607 * 2608 * TODO - delete when we're sure all this functionallity is captured. 2609 */ 2610 private void handleConnectivityChange(int netType, LinkProperties curLp, boolean doReset) { 2611 int resetMask = doReset ? NetworkUtils.RESET_ALL_ADDRESSES : 0; 2612 boolean exempt = ConnectivityManager.isNetworkTypeExempt(netType); 2613 if (VDBG) { 2614 log("handleConnectivityChange: netType=" + netType + " doReset=" + doReset 2615 + " resetMask=" + resetMask); 2616 } 2617 2618 /* 2619 * If a non-default network is enabled, add the host routes that 2620 * will allow it's DNS servers to be accessed. 2621 */ 2622 handleDnsConfigurationChange(netType); 2623 2624 LinkProperties newLp = null; 2625 2626 if (mNetTrackers[netType].getNetworkInfo().isConnected()) { 2627 newLp = mNetTrackers[netType].getLinkProperties(); 2628 if (VDBG) { 2629 log("handleConnectivityChange: changed linkProperty[" + netType + "]:" + 2630 " doReset=" + doReset + " resetMask=" + resetMask + 2631 "\n curLp=" + curLp + 2632 "\n newLp=" + newLp); 2633 } 2634 2635 if (curLp != null) { 2636 if (curLp.isIdenticalInterfaceName(newLp)) { 2637 CompareResult<LinkAddress> car = curLp.compareAddresses(newLp); 2638 if ((car.removed.size() != 0) || (car.added.size() != 0)) { 2639 for (LinkAddress linkAddr : car.removed) { 2640 if (linkAddr.getAddress() instanceof Inet4Address) { 2641 resetMask |= NetworkUtils.RESET_IPV4_ADDRESSES; 2642 } 2643 if (linkAddr.getAddress() instanceof Inet6Address) { 2644 resetMask |= NetworkUtils.RESET_IPV6_ADDRESSES; 2645 } 2646 } 2647 if (DBG) { 2648 log("handleConnectivityChange: addresses changed" + 2649 " linkProperty[" + netType + "]:" + " resetMask=" + resetMask + 2650 "\n car=" + car); 2651 } 2652 } else { 2653 if (VDBG) { 2654 log("handleConnectivityChange: addresses are the same reset per" + 2655 " doReset linkProperty[" + netType + "]:" + 2656 " resetMask=" + resetMask); 2657 } 2658 } 2659 } else { 2660 resetMask = NetworkUtils.RESET_ALL_ADDRESSES; 2661 if (DBG) { 2662 log("handleConnectivityChange: interface not not equivalent reset both" + 2663 " linkProperty[" + netType + "]:" + 2664 " resetMask=" + resetMask); 2665 } 2666 } 2667 } 2668 if (mNetConfigs[netType].isDefault()) { 2669 handleApplyDefaultProxy(newLp.getHttpProxy()); 2670 } 2671 } else { 2672 if (VDBG) { 2673 log("handleConnectivityChange: changed linkProperty[" + netType + "]:" + 2674 " doReset=" + doReset + " resetMask=" + resetMask + 2675 "\n curLp=" + curLp + 2676 "\n newLp= null"); 2677 } 2678 } 2679 mCurrentLinkProperties[netType] = newLp; 2680 boolean resetDns = updateRoutes(newLp, curLp, mNetConfigs[netType].isDefault(), exempt, 2681 mNetTrackers[netType].getNetwork().netId); 2682 2683 if (resetMask != 0 || resetDns) { 2684 if (VDBG) log("handleConnectivityChange: resetting"); 2685 if (curLp != null) { 2686 if (VDBG) log("handleConnectivityChange: resetting curLp=" + curLp); 2687 for (String iface : curLp.getAllInterfaceNames()) { 2688 if (TextUtils.isEmpty(iface) == false) { 2689 if (resetMask != 0) { 2690 if (DBG) log("resetConnections(" + iface + ", " + resetMask + ")"); 2691 NetworkUtils.resetConnections(iface, resetMask); 2692 2693 // Tell VPN the interface is down. It is a temporary 2694 // but effective fix to make VPN aware of the change. 2695 if ((resetMask & NetworkUtils.RESET_IPV4_ADDRESSES) != 0) { 2696 synchronized(mVpns) { 2697 for (int i = 0; i < mVpns.size(); i++) { 2698 mVpns.valueAt(i).interfaceStatusChanged(iface, false); 2699 } 2700 } 2701 } 2702 } 2703 } else { 2704 loge("Can't reset connection for type "+netType); 2705 } 2706 } 2707 if (resetDns) { 2708 flushVmDnsCache(); 2709 if (VDBG) log("resetting DNS cache for type " + netType); 2710 try { 2711 mNetd.flushNetworkDnsCache(mNetTrackers[netType].getNetwork().netId); 2712 } catch (Exception e) { 2713 // never crash - catch them all 2714 if (DBG) loge("Exception resetting dns cache: " + e); 2715 } 2716 } 2717 } 2718 } 2719 2720 // TODO: Temporary notifying upstread change to Tethering. 2721 // @see bug/4455071 2722 /** Notify TetheringService if interface name has been changed. */ 2723 if (TextUtils.equals(mNetTrackers[netType].getNetworkInfo().getReason(), 2724 PhoneConstants.REASON_LINK_PROPERTIES_CHANGED)) { 2725 if (isTetheringSupported()) { 2726 mTethering.handleTetherIfaceChange(); 2727 } 2728 } 2729 } 2730 2731 /** 2732 * Add and remove routes using the old properties (null if not previously connected), 2733 * new properties (null if becoming disconnected). May even be double null, which 2734 * is a noop. 2735 * Uses isLinkDefault to determine if default routes should be set or conversely if 2736 * host routes should be set to the dns servers 2737 * returns a boolean indicating the routes changed 2738 */ 2739 private boolean updateRoutes(LinkProperties newLp, LinkProperties curLp, 2740 boolean isLinkDefault, boolean exempt, int netId) { 2741 Collection<RouteInfo> routesToAdd = null; 2742 CompareResult<InetAddress> dnsDiff = new CompareResult<InetAddress>(); 2743 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 2744 if (curLp != null) { 2745 // check for the delta between the current set and the new 2746 routeDiff = curLp.compareAllRoutes(newLp); 2747 dnsDiff = curLp.compareDnses(newLp); 2748 } else if (newLp != null) { 2749 routeDiff.added = newLp.getAllRoutes(); 2750 dnsDiff.added = newLp.getDnsServers(); 2751 } 2752 2753 boolean routesChanged = (routeDiff.removed.size() != 0 || routeDiff.added.size() != 0); 2754 2755 for (RouteInfo r : routeDiff.removed) { 2756 if (isLinkDefault || ! r.isDefaultRoute()) { 2757 if (VDBG) log("updateRoutes: default remove route r=" + r); 2758 removeRoute(curLp, r, TO_DEFAULT_TABLE, netId); 2759 } 2760 if (isLinkDefault == false) { 2761 // remove from a secondary route table 2762 removeRoute(curLp, r, TO_SECONDARY_TABLE, netId); 2763 } 2764 } 2765 2766 for (RouteInfo r : routeDiff.added) { 2767 if (isLinkDefault || ! r.isDefaultRoute()) { 2768 addRoute(newLp, r, TO_DEFAULT_TABLE, exempt, netId); 2769 } else { 2770 // add to a secondary route table 2771 addRoute(newLp, r, TO_SECONDARY_TABLE, UNEXEMPT, netId); 2772 2773 // many radios add a default route even when we don't want one. 2774 // remove the default route unless somebody else has asked for it 2775 String ifaceName = newLp.getInterfaceName(); 2776 synchronized (mRoutesLock) { 2777 if (!TextUtils.isEmpty(ifaceName) && !mAddedRoutes.contains(r)) { 2778 if (VDBG) log("Removing " + r + " for interface " + ifaceName); 2779 try { 2780 mNetd.removeRoute(netId, r); 2781 } catch (Exception e) { 2782 // never crash - catch them all 2783 if (DBG) loge("Exception trying to remove a route: " + e); 2784 } 2785 } 2786 } 2787 } 2788 } 2789 2790 return routesChanged; 2791 } 2792 2793 /** 2794 * Reads the network specific MTU size from reources. 2795 * and set it on it's iface. 2796 */ 2797 private void updateMtu(LinkProperties newLp, LinkProperties oldLp) { 2798 final String iface = newLp.getInterfaceName(); 2799 final int mtu = newLp.getMtu(); 2800 if (oldLp != null && newLp.isIdenticalMtu(oldLp)) { 2801 if (VDBG) log("identical MTU - not setting"); 2802 return; 2803 } 2804 2805 if (mtu < 68 || mtu > 10000) { 2806 loge("Unexpected mtu value: " + mtu + ", " + iface); 2807 return; 2808 } 2809 2810 try { 2811 if (VDBG) log("Setting MTU size: " + iface + ", " + mtu); 2812 mNetd.setMtu(iface, mtu); 2813 } catch (Exception e) { 2814 Slog.e(TAG, "exception in setMtu()" + e); 2815 } 2816 } 2817 2818 /** 2819 * Reads the network specific TCP buffer sizes from SystemProperties 2820 * net.tcp.buffersize.[default|wifi|umts|edge|gprs] and set them for system 2821 * wide use 2822 */ 2823 private void updateNetworkSettings(NetworkStateTracker nt) { 2824 String key = nt.getTcpBufferSizesPropName(); 2825 String bufferSizes = key == null ? null : SystemProperties.get(key); 2826 2827 if (TextUtils.isEmpty(bufferSizes)) { 2828 if (VDBG) log(key + " not found in system properties. Using defaults"); 2829 2830 // Setting to default values so we won't be stuck to previous values 2831 key = "net.tcp.buffersize.default"; 2832 bufferSizes = SystemProperties.get(key); 2833 } 2834 2835 // Set values in kernel 2836 if (bufferSizes.length() != 0) { 2837 if (VDBG) { 2838 log("Setting TCP values: [" + bufferSizes 2839 + "] which comes from [" + key + "]"); 2840 } 2841 setBufferSize(bufferSizes); 2842 } 2843 2844 final String defaultRwndKey = "net.tcp.default_init_rwnd"; 2845 int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0); 2846 Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(), 2847 Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue); 2848 final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd"; 2849 if (rwndValue != 0) { 2850 SystemProperties.set(sysctlKey, rwndValue.toString()); 2851 } 2852 } 2853 2854 /** 2855 * Writes TCP buffer sizes to /sys/kernel/ipv4/tcp_[r/w]mem_[min/def/max] 2856 * which maps to /proc/sys/net/ipv4/tcp_rmem and tcpwmem 2857 * 2858 * @param bufferSizes in the format of "readMin, readInitial, readMax, 2859 * writeMin, writeInitial, writeMax" 2860 */ 2861 private void setBufferSize(String bufferSizes) { 2862 try { 2863 String[] values = bufferSizes.split(","); 2864 2865 if (values.length == 6) { 2866 final String prefix = "/sys/kernel/ipv4/tcp_"; 2867 FileUtils.stringToFile(prefix + "rmem_min", values[0]); 2868 FileUtils.stringToFile(prefix + "rmem_def", values[1]); 2869 FileUtils.stringToFile(prefix + "rmem_max", values[2]); 2870 FileUtils.stringToFile(prefix + "wmem_min", values[3]); 2871 FileUtils.stringToFile(prefix + "wmem_def", values[4]); 2872 FileUtils.stringToFile(prefix + "wmem_max", values[5]); 2873 } else { 2874 loge("Invalid buffersize string: " + bufferSizes); 2875 } 2876 } catch (IOException e) { 2877 loge("Can't set tcp buffer sizes:" + e); 2878 } 2879 } 2880 2881 /** 2882 * Adjust the per-process dns entries (net.dns<x>.<pid>) based 2883 * on the highest priority active net which this process requested. 2884 * If there aren't any, clear it out 2885 */ 2886 private void reassessPidDns(int pid, boolean doBump) 2887 { 2888 if (VDBG) log("reassessPidDns for pid " + pid); 2889 Integer myPid = new Integer(pid); 2890 for(int i : mPriorityList) { 2891 if (mNetConfigs[i].isDefault()) { 2892 continue; 2893 } 2894 NetworkStateTracker nt = mNetTrackers[i]; 2895 if (nt.getNetworkInfo().isConnected() && 2896 !nt.isTeardownRequested()) { 2897 LinkProperties p = nt.getLinkProperties(); 2898 if (p == null) continue; 2899 if (mNetRequestersPids[i].contains(myPid)) { 2900 try { 2901 // TODO: Reimplement this via local variable in bionic. 2902 // mNetd.setDnsNetworkForPid(nt.getNetwork().netId, pid); 2903 } catch (Exception e) { 2904 Slog.e(TAG, "exception reasseses pid dns: " + e); 2905 } 2906 return; 2907 } 2908 } 2909 } 2910 // nothing found - delete 2911 try { 2912 // TODO: Reimplement this via local variable in bionic. 2913 // mNetd.clearDnsNetworkForPid(pid); 2914 } catch (Exception e) { 2915 Slog.e(TAG, "exception clear interface from pid: " + e); 2916 } 2917 } 2918 2919 private void flushVmDnsCache() { 2920 /* 2921 * Tell the VMs to toss their DNS caches 2922 */ 2923 Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE); 2924 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); 2925 /* 2926 * Connectivity events can happen before boot has completed ... 2927 */ 2928 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2929 final long ident = Binder.clearCallingIdentity(); 2930 try { 2931 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 2932 } finally { 2933 Binder.restoreCallingIdentity(ident); 2934 } 2935 } 2936 2937 // Caller must grab mDnsLock. 2938 private void updateDnsLocked(String network, int netId, 2939 Collection<InetAddress> dnses, String domains) { 2940 int last = 0; 2941 if (dnses.size() == 0 && mDefaultDns != null) { 2942 dnses = new ArrayList(); 2943 dnses.add(mDefaultDns); 2944 if (DBG) { 2945 loge("no dns provided for " + network + " - using " + mDefaultDns.getHostAddress()); 2946 } 2947 } 2948 2949 try { 2950 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), domains); 2951 2952 for (InetAddress dns : dnses) { 2953 ++last; 2954 String key = "net.dns" + last; 2955 String value = dns.getHostAddress(); 2956 SystemProperties.set(key, value); 2957 } 2958 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 2959 String key = "net.dns" + i; 2960 SystemProperties.set(key, ""); 2961 } 2962 mNumDnsEntries = last; 2963 } catch (Exception e) { 2964 loge("exception setting default dns interface: " + e); 2965 } 2966 } 2967 2968 private void handleDnsConfigurationChange(int netType) { 2969 // add default net's dns entries 2970 NetworkStateTracker nt = mNetTrackers[netType]; 2971 if (nt != null && nt.getNetworkInfo().isConnected() && !nt.isTeardownRequested()) { 2972 LinkProperties p = nt.getLinkProperties(); 2973 if (p == null) return; 2974 Collection<InetAddress> dnses = p.getDnsServers(); 2975 int netId = nt.getNetwork().netId; 2976 if (mNetConfigs[netType].isDefault()) { 2977 String network = nt.getNetworkInfo().getTypeName(); 2978 synchronized (mDnsLock) { 2979 updateDnsLocked(network, netId, dnses, p.getDomains()); 2980 } 2981 } else { 2982 try { 2983 mNetd.setDnsServersForNetwork(netId, 2984 NetworkUtils.makeStrings(dnses), p.getDomains()); 2985 } catch (Exception e) { 2986 if (DBG) loge("exception setting dns servers: " + e); 2987 } 2988 // set per-pid dns for attached secondary nets 2989 List<Integer> pids = mNetRequestersPids[netType]; 2990 for (Integer pid : pids) { 2991 try { 2992 // TODO: Reimplement this via local variable in bionic. 2993 // mNetd.setDnsNetworkForPid(netId, pid); 2994 } catch (Exception e) { 2995 Slog.e(TAG, "exception setting interface for pid: " + e); 2996 } 2997 } 2998 } 2999 flushVmDnsCache(); 3000 } 3001 } 3002 3003 @Override 3004 public int getRestoreDefaultNetworkDelay(int networkType) { 3005 String restoreDefaultNetworkDelayStr = SystemProperties.get( 3006 NETWORK_RESTORE_DELAY_PROP_NAME); 3007 if(restoreDefaultNetworkDelayStr != null && 3008 restoreDefaultNetworkDelayStr.length() != 0) { 3009 try { 3010 return Integer.valueOf(restoreDefaultNetworkDelayStr); 3011 } catch (NumberFormatException e) { 3012 } 3013 } 3014 // if the system property isn't set, use the value for the apn type 3015 int ret = RESTORE_DEFAULT_NETWORK_DELAY; 3016 3017 if ((networkType <= ConnectivityManager.MAX_NETWORK_TYPE) && 3018 (mNetConfigs[networkType] != null)) { 3019 ret = mNetConfigs[networkType].restoreTime; 3020 } 3021 return ret; 3022 } 3023 3024 @Override 3025 protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { 3026 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 3027 if (mContext.checkCallingOrSelfPermission( 3028 android.Manifest.permission.DUMP) 3029 != PackageManager.PERMISSION_GRANTED) { 3030 pw.println("Permission Denial: can't dump ConnectivityService " + 3031 "from from pid=" + Binder.getCallingPid() + ", uid=" + 3032 Binder.getCallingUid()); 3033 return; 3034 } 3035 3036 pw.println("NetworkFactories for:"); 3037 pw.increaseIndent(); 3038 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 3039 pw.println(nfi.name); 3040 } 3041 pw.decreaseIndent(); 3042 pw.println(); 3043 3044 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 3045 pw.print("Active default network: "); 3046 if (defaultNai == null) { 3047 pw.println("none"); 3048 } else { 3049 pw.println(defaultNai.network.netId); 3050 } 3051 pw.println(); 3052 3053 pw.println("Current Networks:"); 3054 pw.increaseIndent(); 3055 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 3056 pw.println(nai.toString()); 3057 pw.increaseIndent(); 3058 pw.println("Requests:"); 3059 pw.increaseIndent(); 3060 for (int i = 0; i < nai.networkRequests.size(); i++) { 3061 pw.println(nai.networkRequests.valueAt(i).toString()); 3062 } 3063 pw.decreaseIndent(); 3064 pw.println("Lingered:"); 3065 pw.increaseIndent(); 3066 for (NetworkRequest nr : nai.networkLingered) pw.println(nr.toString()); 3067 pw.decreaseIndent(); 3068 pw.decreaseIndent(); 3069 } 3070 pw.decreaseIndent(); 3071 pw.println(); 3072 3073 pw.println("Network Requests:"); 3074 pw.increaseIndent(); 3075 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 3076 pw.println(nri.toString()); 3077 } 3078 pw.println(); 3079 pw.decreaseIndent(); 3080 3081 synchronized (this) { 3082 pw.println("NetworkTranstionWakeLock is currently " + 3083 (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held."); 3084 pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy); 3085 } 3086 pw.println(); 3087 3088 mTethering.dump(fd, pw, args); 3089 3090 if (mInetLog != null) { 3091 pw.println(); 3092 pw.println("Inet condition reports:"); 3093 pw.increaseIndent(); 3094 for(int i = 0; i < mInetLog.size(); i++) { 3095 pw.println(mInetLog.get(i)); 3096 } 3097 pw.decreaseIndent(); 3098 } 3099 } 3100 3101 // must be stateless - things change under us. 3102 private class NetworkStateTrackerHandler extends Handler { 3103 public NetworkStateTrackerHandler(Looper looper) { 3104 super(looper); 3105 } 3106 3107 @Override 3108 public void handleMessage(Message msg) { 3109 NetworkInfo info; 3110 switch (msg.what) { 3111 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 3112 handleAsyncChannelHalfConnect(msg); 3113 break; 3114 } 3115 case AsyncChannel.CMD_CHANNEL_DISCONNECT: { 3116 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3117 if (nai != null) nai.asyncChannel.disconnect(); 3118 break; 3119 } 3120 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 3121 handleAsyncChannelDisconnected(msg); 3122 break; 3123 } 3124 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { 3125 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3126 if (nai == null) { 3127 loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); 3128 } else { 3129 updateCapabilities(nai, (NetworkCapabilities)msg.obj); 3130 } 3131 break; 3132 } 3133 case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { 3134 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3135 if (nai == null) { 3136 loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); 3137 } else { 3138 if (VDBG) log("Update of Linkproperties for " + nai.name()); 3139 LinkProperties oldLp = nai.linkProperties; 3140 synchronized (nai) { 3141 nai.linkProperties = (LinkProperties)msg.obj; 3142 } 3143 updateLinkProperties(nai, oldLp); 3144 } 3145 break; 3146 } 3147 case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { 3148 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3149 if (nai == null) { 3150 loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); 3151 break; 3152 } 3153 info = (NetworkInfo) msg.obj; 3154 updateNetworkInfo(nai, info); 3155 break; 3156 } 3157 case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { 3158 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3159 if (nai == null) { 3160 loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); 3161 break; 3162 } 3163 Integer score = (Integer) msg.obj; 3164 if (score != null) updateNetworkScore(nai, score.intValue()); 3165 break; 3166 } 3167 case NetworkAgent.EVENT_UID_RANGES_ADDED: { 3168 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3169 if (nai == null) { 3170 loge("EVENT_UID_RANGES_ADDED from unknown NetworkAgent"); 3171 break; 3172 } 3173 try { 3174 mNetd.addVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 3175 } catch (RemoteException e) { 3176 } 3177 break; 3178 } 3179 case NetworkAgent.EVENT_UID_RANGES_REMOVED: { 3180 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3181 if (nai == null) { 3182 loge("EVENT_UID_RANGES_REMOVED from unknown NetworkAgent"); 3183 break; 3184 } 3185 try { 3186 mNetd.removeVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 3187 } catch (RemoteException e) { 3188 } 3189 break; 3190 } 3191 case NetworkMonitor.EVENT_NETWORK_VALIDATED: { 3192 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 3193 handleConnectionValidated(nai); 3194 break; 3195 } 3196 case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { 3197 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 3198 handleLingerComplete(nai); 3199 break; 3200 } 3201 case NetworkMonitor.EVENT_PROVISIONING_NOTIFICATION: { 3202 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3203 if (nai == null) { 3204 loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); 3205 break; 3206 } 3207 setProvNotificationVisibleIntent(msg.arg1 != 0, nai.networkInfo.getType(), 3208 nai.networkInfo.getExtraInfo(), (PendingIntent)msg.obj); 3209 break; 3210 } 3211 case NetworkStateTracker.EVENT_STATE_CHANGED: { 3212 info = (NetworkInfo) msg.obj; 3213 NetworkInfo.State state = info.getState(); 3214 3215 if (VDBG || (state == NetworkInfo.State.CONNECTED) || 3216 (state == NetworkInfo.State.DISCONNECTED) || 3217 (state == NetworkInfo.State.SUSPENDED)) { 3218 log("ConnectivityChange for " + 3219 info.getTypeName() + ": " + 3220 state + "/" + info.getDetailedState()); 3221 } 3222 3223 // Since mobile has the notion of a network/apn that can be used for 3224 // provisioning we need to check every time we're connected as 3225 // CaptiveProtalTracker won't detected it because DCT doesn't report it 3226 // as connected as ACTION_ANY_DATA_CONNECTION_STATE_CHANGED instead its 3227 // reported as ACTION_DATA_CONNECTION_CONNECTED_TO_PROVISIONING_APN. Which 3228 // is received by MDST and sent here as EVENT_STATE_CHANGED. 3229 if (ConnectivityManager.isNetworkTypeMobile(info.getType()) 3230 && (0 != Settings.Global.getInt(mContext.getContentResolver(), 3231 Settings.Global.DEVICE_PROVISIONED, 0)) 3232 && (((state == NetworkInfo.State.CONNECTED) 3233 && (info.getType() == ConnectivityManager.TYPE_MOBILE)) 3234 || info.isConnectedToProvisioningNetwork())) { 3235 log("ConnectivityChange checkMobileProvisioning for" 3236 + " TYPE_MOBILE or ProvisioningNetwork"); 3237 checkMobileProvisioning(CheckMp.MAX_TIMEOUT_MS); 3238 } 3239 3240 EventLogTags.writeConnectivityStateChanged( 3241 info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); 3242 3243 if (info.isConnectedToProvisioningNetwork()) { 3244 /** 3245 * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING 3246 * for now its an in between network, its a network that 3247 * is actually a default network but we don't want it to be 3248 * announced as such to keep background applications from 3249 * trying to use it. It turns out that some still try so we 3250 * take the additional step of clearing any default routes 3251 * to the link that may have incorrectly setup by the lower 3252 * levels. 3253 */ 3254 LinkProperties lp = getLinkPropertiesForTypeInternal(info.getType()); 3255 if (DBG) { 3256 log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); 3257 } 3258 3259 // Clear any default routes setup by the radio so 3260 // any activity by applications trying to use this 3261 // connection will fail until the provisioning network 3262 // is enabled. 3263 for (RouteInfo r : lp.getRoutes()) { 3264 removeRoute(lp, r, TO_DEFAULT_TABLE, 3265 mNetTrackers[info.getType()].getNetwork().netId); 3266 } 3267 } else if (state == NetworkInfo.State.DISCONNECTED) { 3268 } else if (state == NetworkInfo.State.SUSPENDED) { 3269 } else if (state == NetworkInfo.State.CONNECTED) { 3270 // handleConnect(info); 3271 } 3272 if (mLockdownTracker != null) { 3273 mLockdownTracker.onNetworkInfoChanged(info); 3274 } 3275 break; 3276 } 3277 case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { 3278 info = (NetworkInfo) msg.obj; 3279 // TODO: Temporary allowing network configuration 3280 // change not resetting sockets. 3281 // @see bug/4455071 3282 handleConnectivityChange(info.getType(), mCurrentLinkProperties[info.getType()], 3283 false); 3284 break; 3285 } 3286 case NetworkStateTracker.EVENT_NETWORK_SUBTYPE_CHANGED: { 3287 info = (NetworkInfo) msg.obj; 3288 int type = info.getType(); 3289 if (mNetConfigs[type].isDefault()) updateNetworkSettings(mNetTrackers[type]); 3290 break; 3291 } 3292 } 3293 } 3294 } 3295 3296 private void handleAsyncChannelHalfConnect(Message msg) { 3297 AsyncChannel ac = (AsyncChannel) msg.obj; 3298 if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { 3299 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 3300 if (VDBG) log("NetworkFactory connected"); 3301 // A network factory has connected. Send it all current NetworkRequests. 3302 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 3303 if (nri.isRequest == false) continue; 3304 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 3305 ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, 3306 (nai != null ? nai.currentScore : 0), 0, nri.request); 3307 } 3308 } else { 3309 loge("Error connecting NetworkFactory"); 3310 mNetworkFactoryInfos.remove(msg.obj); 3311 } 3312 } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { 3313 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 3314 if (VDBG) log("NetworkAgent connected"); 3315 // A network agent has requested a connection. Establish the connection. 3316 mNetworkAgentInfos.get(msg.replyTo).asyncChannel. 3317 sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 3318 } else { 3319 loge("Error connecting NetworkAgent"); 3320 NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); 3321 if (nai != null) { 3322 synchronized (mNetworkForNetId) { 3323 mNetworkForNetId.remove(nai.network.netId); 3324 } 3325 mLegacyTypeTracker.remove(nai); 3326 } 3327 } 3328 } 3329 } 3330 private void handleAsyncChannelDisconnected(Message msg) { 3331 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 3332 if (nai != null) { 3333 if (DBG) { 3334 log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); 3335 } 3336 // A network agent has disconnected. 3337 // Tell netd to clean up the configuration for this network 3338 // (routing rules, DNS, etc). 3339 try { 3340 mNetd.removeNetwork(nai.network.netId); 3341 } catch (Exception e) { 3342 loge("Exception removing network: " + e); 3343 } 3344 // TODO - if we move the logic to the network agent (have them disconnect 3345 // because they lost all their requests or because their score isn't good) 3346 // then they would disconnect organically, report their new state and then 3347 // disconnect the channel. 3348 if (nai.networkInfo.isConnected()) { 3349 nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, 3350 null, null); 3351 } 3352 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); 3353 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); 3354 mNetworkAgentInfos.remove(msg.replyTo); 3355 updateClat(null, nai.linkProperties, nai); 3356 mLegacyTypeTracker.remove(nai); 3357 synchronized (mNetworkForNetId) { 3358 mNetworkForNetId.remove(nai.network.netId); 3359 } 3360 // Since we've lost the network, go through all the requests that 3361 // it was satisfying and see if any other factory can satisfy them. 3362 final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); 3363 for (int i = 0; i < nai.networkRequests.size(); i++) { 3364 NetworkRequest request = nai.networkRequests.valueAt(i); 3365 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); 3366 if (VDBG) { 3367 log(" checking request " + request + ", currentNetwork = " + 3368 (currentNetwork != null ? currentNetwork.name() : "null")); 3369 } 3370 if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { 3371 mNetworkForRequestId.remove(request.requestId); 3372 sendUpdatedScoreToFactories(request, 0); 3373 NetworkAgentInfo alternative = null; 3374 for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { 3375 NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); 3376 if (existing.networkInfo.isConnected() && 3377 request.networkCapabilities.satisfiedByNetworkCapabilities( 3378 existing.networkCapabilities) && 3379 (alternative == null || 3380 alternative.currentScore < existing.currentScore)) { 3381 alternative = existing; 3382 } 3383 } 3384 if (alternative != null && !toActivate.contains(alternative)) { 3385 toActivate.add(alternative); 3386 } 3387 } 3388 } 3389 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 3390 removeDataActivityTracking(nai); 3391 mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; 3392 requestNetworkTransitionWakelock(nai.name()); 3393 } 3394 for (NetworkAgentInfo networkToActivate : toActivate) { 3395 networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 3396 } 3397 } 3398 } 3399 3400 private void handleRegisterNetworkRequest(Message msg) { 3401 final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); 3402 final NetworkCapabilities newCap = nri.request.networkCapabilities; 3403 int score = 0; 3404 3405 // Check for the best currently alive network that satisfies this request 3406 NetworkAgentInfo bestNetwork = null; 3407 for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { 3408 if (VDBG) log("handleRegisterNetworkRequest checking " + network.name()); 3409 if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { 3410 if (VDBG) log("apparently satisfied. currentScore=" + network.currentScore); 3411 if ((bestNetwork == null) || bestNetwork.currentScore < network.currentScore) { 3412 bestNetwork = network; 3413 } 3414 } 3415 } 3416 if (bestNetwork != null) { 3417 if (VDBG) log("using " + bestNetwork.name()); 3418 if (nri.isRequest && bestNetwork.networkInfo.isConnected()) { 3419 // Cancel any lingering so the linger timeout doesn't teardown this network 3420 // even though we have a request for it. 3421 bestNetwork.networkLingered.clear(); 3422 bestNetwork.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 3423 } 3424 bestNetwork.addRequest(nri.request); 3425 mNetworkForRequestId.put(nri.request.requestId, bestNetwork); 3426 int legacyType = nri.request.legacyType; 3427 if (legacyType != TYPE_NONE) { 3428 mLegacyTypeTracker.add(legacyType, bestNetwork); 3429 } 3430 notifyNetworkCallback(bestNetwork, nri); 3431 score = bestNetwork.currentScore; 3432 } 3433 mNetworkRequests.put(nri.request, nri); 3434 if (msg.what == EVENT_REGISTER_NETWORK_REQUEST) { 3435 if (DBG) log("sending new NetworkRequest to factories"); 3436 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 3437 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 3438 0, nri.request); 3439 } 3440 } 3441 } 3442 3443 private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) { 3444 NetworkRequestInfo nri = mNetworkRequests.get(request); 3445 if (nri != null) { 3446 if (nri.mUid != callingUid) { 3447 if (DBG) log("Attempt to release unowned NetworkRequest " + request); 3448 return; 3449 } 3450 if (DBG) log("releasing NetworkRequest " + request); 3451 mNetworkRequests.remove(request); 3452 // tell the network currently servicing this that it's no longer interested 3453 NetworkAgentInfo affectedNetwork = mNetworkForRequestId.get(nri.request.requestId); 3454 if (affectedNetwork != null) { 3455 mNetworkForRequestId.remove(nri.request.requestId); 3456 affectedNetwork.networkRequests.remove(nri.request.requestId); 3457 if (VDBG) { 3458 log(" Removing from current network " + affectedNetwork.name() + ", leaving " + 3459 affectedNetwork.networkRequests.size() + " requests."); 3460 } 3461 } 3462 3463 if (nri.isRequest) { 3464 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 3465 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 3466 nri.request); 3467 } 3468 3469 if (affectedNetwork != null) { 3470 // check if this network still has live requests - otherwise, tear down 3471 // TODO - probably push this to the NF/NA 3472 boolean keep = affectedNetwork.isVPN(); 3473 for (int i = 0; i < affectedNetwork.networkRequests.size() && !keep; i++) { 3474 NetworkRequest r = affectedNetwork.networkRequests.valueAt(i); 3475 if (mNetworkRequests.get(r).isRequest) { 3476 keep = true; 3477 } 3478 } 3479 if (keep == false) { 3480 if (DBG) log("no live requests for " + affectedNetwork.name() + 3481 "; disconnecting"); 3482 affectedNetwork.asyncChannel.disconnect(); 3483 } 3484 } 3485 } 3486 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 3487 } 3488 } 3489 3490 private class InternalHandler extends Handler { 3491 public InternalHandler(Looper looper) { 3492 super(looper); 3493 } 3494 3495 @Override 3496 public void handleMessage(Message msg) { 3497 NetworkInfo info; 3498 switch (msg.what) { 3499 case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: 3500 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 3501 String causedBy = null; 3502 synchronized (ConnectivityService.this) { 3503 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 3504 mNetTransitionWakeLock.isHeld()) { 3505 mNetTransitionWakeLock.release(); 3506 causedBy = mNetTransitionWakeLockCausedBy; 3507 } else { 3508 break; 3509 } 3510 } 3511 if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { 3512 log("Failed to find a new network - expiring NetTransition Wakelock"); 3513 } else { 3514 log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + 3515 " cleared because we found a replacement network"); 3516 } 3517 break; 3518 } 3519 case EVENT_RESTORE_DEFAULT_NETWORK: { 3520 FeatureUser u = (FeatureUser)msg.obj; 3521 u.expire(); 3522 break; 3523 } 3524 case EVENT_INET_CONDITION_CHANGE: { 3525 int netType = msg.arg1; 3526 int condition = msg.arg2; 3527 handleInetConditionChange(netType, condition); 3528 break; 3529 } 3530 case EVENT_INET_CONDITION_HOLD_END: { 3531 int netType = msg.arg1; 3532 int sequence = msg.arg2; 3533 handleInetConditionHoldEnd(netType, sequence); 3534 break; 3535 } 3536 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 3537 handleDeprecatedGlobalHttpProxy(); 3538 break; 3539 } 3540 case EVENT_SET_DEPENDENCY_MET: { 3541 boolean met = (msg.arg1 == ENABLED); 3542 handleSetDependencyMet(msg.arg2, met); 3543 break; 3544 } 3545 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 3546 Intent intent = (Intent)msg.obj; 3547 sendStickyBroadcast(intent); 3548 break; 3549 } 3550 case EVENT_SET_POLICY_DATA_ENABLE: { 3551 final int networkType = msg.arg1; 3552 final boolean enabled = msg.arg2 == ENABLED; 3553 handleSetPolicyDataEnable(networkType, enabled); 3554 break; 3555 } 3556 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 3557 int tag = mEnableFailFastMobileDataTag.get(); 3558 if (msg.arg1 == tag) { 3559 MobileDataStateTracker mobileDst = 3560 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3561 if (mobileDst != null) { 3562 mobileDst.setEnableFailFastMobileData(msg.arg2); 3563 } 3564 } else { 3565 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 3566 + " != tag:" + tag); 3567 } 3568 break; 3569 } 3570 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 3571 handleNetworkSamplingTimeout(); 3572 break; 3573 } 3574 case EVENT_PROXY_HAS_CHANGED: { 3575 handleApplyDefaultProxy((ProxyInfo)msg.obj); 3576 break; 3577 } 3578 case EVENT_REGISTER_NETWORK_FACTORY: { 3579 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 3580 break; 3581 } 3582 case EVENT_UNREGISTER_NETWORK_FACTORY: { 3583 handleUnregisterNetworkFactory((Messenger)msg.obj); 3584 break; 3585 } 3586 case EVENT_REGISTER_NETWORK_AGENT: { 3587 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 3588 break; 3589 } 3590 case EVENT_REGISTER_NETWORK_REQUEST: 3591 case EVENT_REGISTER_NETWORK_LISTENER: { 3592 handleRegisterNetworkRequest(msg); 3593 break; 3594 } 3595 case EVENT_RELEASE_NETWORK_REQUEST: { 3596 handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); 3597 break; 3598 } 3599 } 3600 } 3601 } 3602 3603 // javadoc from interface 3604 public int tether(String iface) { 3605 enforceTetherChangePermission(); 3606 3607 if (isTetheringSupported()) { 3608 return mTethering.tether(iface); 3609 } else { 3610 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 3611 } 3612 } 3613 3614 // javadoc from interface 3615 public int untether(String iface) { 3616 enforceTetherChangePermission(); 3617 3618 if (isTetheringSupported()) { 3619 return mTethering.untether(iface); 3620 } else { 3621 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 3622 } 3623 } 3624 3625 // javadoc from interface 3626 public int getLastTetherError(String iface) { 3627 enforceTetherAccessPermission(); 3628 3629 if (isTetheringSupported()) { 3630 return mTethering.getLastTetherError(iface); 3631 } else { 3632 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 3633 } 3634 } 3635 3636 // TODO - proper iface API for selection by property, inspection, etc 3637 public String[] getTetherableUsbRegexs() { 3638 enforceTetherAccessPermission(); 3639 if (isTetheringSupported()) { 3640 return mTethering.getTetherableUsbRegexs(); 3641 } else { 3642 return new String[0]; 3643 } 3644 } 3645 3646 public String[] getTetherableWifiRegexs() { 3647 enforceTetherAccessPermission(); 3648 if (isTetheringSupported()) { 3649 return mTethering.getTetherableWifiRegexs(); 3650 } else { 3651 return new String[0]; 3652 } 3653 } 3654 3655 public String[] getTetherableBluetoothRegexs() { 3656 enforceTetherAccessPermission(); 3657 if (isTetheringSupported()) { 3658 return mTethering.getTetherableBluetoothRegexs(); 3659 } else { 3660 return new String[0]; 3661 } 3662 } 3663 3664 public int setUsbTethering(boolean enable) { 3665 enforceTetherChangePermission(); 3666 if (isTetheringSupported()) { 3667 return mTethering.setUsbTethering(enable); 3668 } else { 3669 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 3670 } 3671 } 3672 3673 // TODO - move iface listing, queries, etc to new module 3674 // javadoc from interface 3675 public String[] getTetherableIfaces() { 3676 enforceTetherAccessPermission(); 3677 return mTethering.getTetherableIfaces(); 3678 } 3679 3680 public String[] getTetheredIfaces() { 3681 enforceTetherAccessPermission(); 3682 return mTethering.getTetheredIfaces(); 3683 } 3684 3685 public String[] getTetheringErroredIfaces() { 3686 enforceTetherAccessPermission(); 3687 return mTethering.getErroredIfaces(); 3688 } 3689 3690 public String[] getTetheredDhcpRanges() { 3691 enforceConnectivityInternalPermission(); 3692 return mTethering.getTetheredDhcpRanges(); 3693 } 3694 3695 // if ro.tether.denied = true we default to no tethering 3696 // gservices could set the secure setting to 1 though to enable it on a build where it 3697 // had previously been turned off. 3698 public boolean isTetheringSupported() { 3699 enforceTetherAccessPermission(); 3700 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 3701 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 3702 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0) 3703 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); 3704 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 3705 mTethering.getTetherableWifiRegexs().length != 0 || 3706 mTethering.getTetherableBluetoothRegexs().length != 0) && 3707 mTethering.getUpstreamIfaceTypes().length != 0); 3708 } 3709 3710 // Called when we lose the default network and have no replacement yet. 3711 // This will automatically be cleared after X seconds or a new default network 3712 // becomes CONNECTED, whichever happens first. The timer is started by the 3713 // first caller and not restarted by subsequent callers. 3714 private void requestNetworkTransitionWakelock(String forWhom) { 3715 int serialNum = 0; 3716 synchronized (this) { 3717 if (mNetTransitionWakeLock.isHeld()) return; 3718 serialNum = ++mNetTransitionWakeLockSerialNumber; 3719 mNetTransitionWakeLock.acquire(); 3720 mNetTransitionWakeLockCausedBy = forWhom; 3721 } 3722 mHandler.sendMessageDelayed(mHandler.obtainMessage( 3723 EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), 3724 mNetTransitionWakeLockTimeout); 3725 return; 3726 } 3727 3728 // 100 percent is full good, 0 is full bad. 3729 public void reportInetCondition(int networkType, int percentage) { 3730 if (VDBG) log("reportNetworkCondition(" + networkType + ", " + percentage + ")"); 3731 mContext.enforceCallingOrSelfPermission( 3732 android.Manifest.permission.STATUS_BAR, 3733 "ConnectivityService"); 3734 3735 if (DBG) { 3736 int pid = getCallingPid(); 3737 int uid = getCallingUid(); 3738 String s = pid + "(" + uid + ") reports inet is " + 3739 (percentage > 50 ? "connected" : "disconnected") + " (" + percentage + ") on " + 3740 "network Type " + networkType + " at " + GregorianCalendar.getInstance().getTime(); 3741 mInetLog.add(s); 3742 while(mInetLog.size() > INET_CONDITION_LOG_MAX_SIZE) { 3743 mInetLog.remove(0); 3744 } 3745 } 3746 mHandler.sendMessage(mHandler.obtainMessage( 3747 EVENT_INET_CONDITION_CHANGE, networkType, percentage)); 3748 } 3749 3750 public void reportBadNetwork(Network network) { 3751 //TODO 3752 } 3753 3754 private void handleInetConditionChange(int netType, int condition) { 3755 if (mActiveDefaultNetwork == -1) { 3756 if (DBG) log("handleInetConditionChange: no active default network - ignore"); 3757 return; 3758 } 3759 if (mActiveDefaultNetwork != netType) { 3760 if (DBG) log("handleInetConditionChange: net=" + netType + 3761 " != default=" + mActiveDefaultNetwork + " - ignore"); 3762 return; 3763 } 3764 if (VDBG) { 3765 log("handleInetConditionChange: net=" + 3766 netType + ", condition=" + condition + 3767 ",mActiveDefaultNetwork=" + mActiveDefaultNetwork); 3768 } 3769 mDefaultInetCondition = condition; 3770 int delay; 3771 if (mInetConditionChangeInFlight == false) { 3772 if (VDBG) log("handleInetConditionChange: starting a change hold"); 3773 // setup a new hold to debounce this 3774 if (mDefaultInetCondition > 50) { 3775 delay = Settings.Global.getInt(mContext.getContentResolver(), 3776 Settings.Global.INET_CONDITION_DEBOUNCE_UP_DELAY, 500); 3777 } else { 3778 delay = Settings.Global.getInt(mContext.getContentResolver(), 3779 Settings.Global.INET_CONDITION_DEBOUNCE_DOWN_DELAY, 3000); 3780 } 3781 mInetConditionChangeInFlight = true; 3782 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_INET_CONDITION_HOLD_END, 3783 mActiveDefaultNetwork, mDefaultConnectionSequence), delay); 3784 } else { 3785 // we've set the new condition, when this hold ends that will get picked up 3786 if (VDBG) log("handleInetConditionChange: currently in hold - not setting new end evt"); 3787 } 3788 } 3789 3790 private void handleInetConditionHoldEnd(int netType, int sequence) { 3791 if (DBG) { 3792 log("handleInetConditionHoldEnd: net=" + netType + 3793 ", condition=" + mDefaultInetCondition + 3794 ", published condition=" + mDefaultInetConditionPublished); 3795 } 3796 mInetConditionChangeInFlight = false; 3797 3798 if (mActiveDefaultNetwork == -1) { 3799 if (DBG) log("handleInetConditionHoldEnd: no active default network - ignoring"); 3800 return; 3801 } 3802 if (mDefaultConnectionSequence != sequence) { 3803 if (DBG) log("handleInetConditionHoldEnd: event hold for obsolete network - ignoring"); 3804 return; 3805 } 3806 // TODO: Figure out why this optimization sometimes causes a 3807 // change in mDefaultInetCondition to be missed and the 3808 // UI to not be updated. 3809 //if (mDefaultInetConditionPublished == mDefaultInetCondition) { 3810 // if (DBG) log("no change in condition - aborting"); 3811 // return; 3812 //} 3813 NetworkInfo networkInfo = getNetworkInfoForType(mActiveDefaultNetwork); 3814 if (networkInfo.isConnected() == false) { 3815 if (DBG) log("handleInetConditionHoldEnd: default network not connected - ignoring"); 3816 return; 3817 } 3818 mDefaultInetConditionPublished = mDefaultInetCondition; 3819 sendInetConditionBroadcast(networkInfo); 3820 return; 3821 } 3822 3823 public ProxyInfo getProxy() { 3824 // this information is already available as a world read/writable jvm property 3825 // so this API change wouldn't have a benifit. It also breaks the passing 3826 // of proxy info to all the JVMs. 3827 // enforceAccessPermission(); 3828 synchronized (mProxyLock) { 3829 ProxyInfo ret = mGlobalProxy; 3830 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 3831 return ret; 3832 } 3833 } 3834 3835 public void setGlobalProxy(ProxyInfo proxyProperties) { 3836 enforceConnectivityInternalPermission(); 3837 3838 synchronized (mProxyLock) { 3839 if (proxyProperties == mGlobalProxy) return; 3840 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 3841 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 3842 3843 String host = ""; 3844 int port = 0; 3845 String exclList = ""; 3846 String pacFileUrl = ""; 3847 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 3848 (proxyProperties.getPacFileUrl() != null))) { 3849 if (!proxyProperties.isValid()) { 3850 if (DBG) 3851 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 3852 return; 3853 } 3854 mGlobalProxy = new ProxyInfo(proxyProperties); 3855 host = mGlobalProxy.getHost(); 3856 port = mGlobalProxy.getPort(); 3857 exclList = mGlobalProxy.getExclusionListAsString(); 3858 if (proxyProperties.getPacFileUrl() != null) { 3859 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 3860 } 3861 } else { 3862 mGlobalProxy = null; 3863 } 3864 ContentResolver res = mContext.getContentResolver(); 3865 final long token = Binder.clearCallingIdentity(); 3866 try { 3867 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 3868 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 3869 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 3870 exclList); 3871 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 3872 } finally { 3873 Binder.restoreCallingIdentity(token); 3874 } 3875 } 3876 3877 if (mGlobalProxy == null) { 3878 proxyProperties = mDefaultProxy; 3879 } 3880 sendProxyBroadcast(proxyProperties); 3881 } 3882 3883 private void loadGlobalProxy() { 3884 ContentResolver res = mContext.getContentResolver(); 3885 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 3886 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 3887 String exclList = Settings.Global.getString(res, 3888 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 3889 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 3890 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 3891 ProxyInfo proxyProperties; 3892 if (!TextUtils.isEmpty(pacFileUrl)) { 3893 proxyProperties = new ProxyInfo(pacFileUrl); 3894 } else { 3895 proxyProperties = new ProxyInfo(host, port, exclList); 3896 } 3897 if (!proxyProperties.isValid()) { 3898 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 3899 return; 3900 } 3901 3902 synchronized (mProxyLock) { 3903 mGlobalProxy = proxyProperties; 3904 } 3905 } 3906 } 3907 3908 public ProxyInfo getGlobalProxy() { 3909 // this information is already available as a world read/writable jvm property 3910 // so this API change wouldn't have a benifit. It also breaks the passing 3911 // of proxy info to all the JVMs. 3912 // enforceAccessPermission(); 3913 synchronized (mProxyLock) { 3914 return mGlobalProxy; 3915 } 3916 } 3917 3918 private void handleApplyDefaultProxy(ProxyInfo proxy) { 3919 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 3920 && (proxy.getPacFileUrl() == null)) { 3921 proxy = null; 3922 } 3923 synchronized (mProxyLock) { 3924 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 3925 if (mDefaultProxy == proxy) return; // catches repeated nulls 3926 if (proxy != null && !proxy.isValid()) { 3927 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 3928 return; 3929 } 3930 3931 // This call could be coming from the PacManager, containing the port of the local 3932 // proxy. If this new proxy matches the global proxy then copy this proxy to the 3933 // global (to get the correct local port), and send a broadcast. 3934 // TODO: Switch PacManager to have its own message to send back rather than 3935 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 3936 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 3937 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 3938 mGlobalProxy = proxy; 3939 sendProxyBroadcast(mGlobalProxy); 3940 return; 3941 } 3942 mDefaultProxy = proxy; 3943 3944 if (mGlobalProxy != null) return; 3945 if (!mDefaultProxyDisabled) { 3946 sendProxyBroadcast(proxy); 3947 } 3948 } 3949 } 3950 3951 private void handleDeprecatedGlobalHttpProxy() { 3952 String proxy = Settings.Global.getString(mContext.getContentResolver(), 3953 Settings.Global.HTTP_PROXY); 3954 if (!TextUtils.isEmpty(proxy)) { 3955 String data[] = proxy.split(":"); 3956 if (data.length == 0) { 3957 return; 3958 } 3959 3960 String proxyHost = data[0]; 3961 int proxyPort = 8080; 3962 if (data.length > 1) { 3963 try { 3964 proxyPort = Integer.parseInt(data[1]); 3965 } catch (NumberFormatException e) { 3966 return; 3967 } 3968 } 3969 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 3970 setGlobalProxy(p); 3971 } 3972 } 3973 3974 private void sendProxyBroadcast(ProxyInfo proxy) { 3975 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 3976 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 3977 if (DBG) log("sending Proxy Broadcast for " + proxy); 3978 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 3979 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 3980 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3981 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 3982 final long ident = Binder.clearCallingIdentity(); 3983 try { 3984 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 3985 } finally { 3986 Binder.restoreCallingIdentity(ident); 3987 } 3988 } 3989 3990 private static class SettingsObserver extends ContentObserver { 3991 private int mWhat; 3992 private Handler mHandler; 3993 SettingsObserver(Handler handler, int what) { 3994 super(handler); 3995 mHandler = handler; 3996 mWhat = what; 3997 } 3998 3999 void observe(Context context) { 4000 ContentResolver resolver = context.getContentResolver(); 4001 resolver.registerContentObserver(Settings.Global.getUriFor( 4002 Settings.Global.HTTP_PROXY), false, this); 4003 } 4004 4005 @Override 4006 public void onChange(boolean selfChange) { 4007 mHandler.obtainMessage(mWhat).sendToTarget(); 4008 } 4009 } 4010 4011 private static void log(String s) { 4012 Slog.d(TAG, s); 4013 } 4014 4015 private static void loge(String s) { 4016 Slog.e(TAG, s); 4017 } 4018 4019 int convertFeatureToNetworkType(int networkType, String feature) { 4020 int usedNetworkType = networkType; 4021 4022 if(networkType == ConnectivityManager.TYPE_MOBILE) { 4023 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 4024 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 4025 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 4026 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 4027 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 4028 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 4029 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 4030 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 4031 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 4032 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 4033 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 4034 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 4035 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 4036 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 4037 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 4038 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { 4039 usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; 4040 } else { 4041 Slog.e(TAG, "Can't match any mobile netTracker!"); 4042 } 4043 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 4044 if (TextUtils.equals(feature, "p2p")) { 4045 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 4046 } else { 4047 Slog.e(TAG, "Can't match any wifi netTracker!"); 4048 } 4049 } else { 4050 Slog.e(TAG, "Unexpected network type"); 4051 } 4052 return usedNetworkType; 4053 } 4054 4055 private static <T> T checkNotNull(T value, String message) { 4056 if (value == null) { 4057 throw new NullPointerException(message); 4058 } 4059 return value; 4060 } 4061 4062 /** 4063 * Prepare for a VPN application. This method is used by VpnDialogs 4064 * and not available in ConnectivityManager. Permissions are checked 4065 * in Vpn class. 4066 * @hide 4067 */ 4068 @Override 4069 public boolean prepareVpn(String oldPackage, String newPackage) { 4070 throwIfLockdownEnabled(); 4071 int user = UserHandle.getUserId(Binder.getCallingUid()); 4072 synchronized(mVpns) { 4073 return mVpns.get(user).prepare(oldPackage, newPackage); 4074 } 4075 } 4076 4077 /** 4078 * Configure a TUN interface and return its file descriptor. Parameters 4079 * are encoded and opaque to this class. This method is used by VpnBuilder 4080 * and not available in ConnectivityManager. Permissions are checked in 4081 * Vpn class. 4082 * @hide 4083 */ 4084 @Override 4085 public ParcelFileDescriptor establishVpn(VpnConfig config) { 4086 throwIfLockdownEnabled(); 4087 int user = UserHandle.getUserId(Binder.getCallingUid()); 4088 synchronized(mVpns) { 4089 return mVpns.get(user).establish(config); 4090 } 4091 } 4092 4093 /** 4094 * Start legacy VPN, controlling native daemons as needed. Creates a 4095 * secondary thread to perform connection work, returning quickly. 4096 */ 4097 @Override 4098 public void startLegacyVpn(VpnProfile profile) { 4099 throwIfLockdownEnabled(); 4100 final LinkProperties egress = getActiveLinkProperties(); 4101 if (egress == null) { 4102 throw new IllegalStateException("Missing active network connection"); 4103 } 4104 int user = UserHandle.getUserId(Binder.getCallingUid()); 4105 synchronized(mVpns) { 4106 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 4107 } 4108 } 4109 4110 /** 4111 * Return the information of the ongoing legacy VPN. This method is used 4112 * by VpnSettings and not available in ConnectivityManager. Permissions 4113 * are checked in Vpn class. 4114 * @hide 4115 */ 4116 @Override 4117 public LegacyVpnInfo getLegacyVpnInfo() { 4118 throwIfLockdownEnabled(); 4119 int user = UserHandle.getUserId(Binder.getCallingUid()); 4120 synchronized(mVpns) { 4121 return mVpns.get(user).getLegacyVpnInfo(); 4122 } 4123 } 4124 4125 /** 4126 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 4127 * not available in ConnectivityManager. 4128 * Permissions are checked in Vpn class. 4129 * @hide 4130 */ 4131 @Override 4132 public VpnConfig getVpnConfig() { 4133 int user = UserHandle.getUserId(Binder.getCallingUid()); 4134 synchronized(mVpns) { 4135 return mVpns.get(user).getVpnConfig(); 4136 } 4137 } 4138 4139 @Override 4140 public boolean updateLockdownVpn() { 4141 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 4142 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 4143 return false; 4144 } 4145 4146 // Tear down existing lockdown if profile was removed 4147 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 4148 if (mLockdownEnabled) { 4149 if (!mKeyStore.isUnlocked()) { 4150 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 4151 return false; 4152 } 4153 4154 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 4155 final VpnProfile profile = VpnProfile.decode( 4156 profileName, mKeyStore.get(Credentials.VPN + profileName)); 4157 int user = UserHandle.getUserId(Binder.getCallingUid()); 4158 synchronized(mVpns) { 4159 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 4160 profile)); 4161 } 4162 } else { 4163 setLockdownTracker(null); 4164 } 4165 4166 return true; 4167 } 4168 4169 /** 4170 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 4171 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 4172 */ 4173 private void setLockdownTracker(LockdownVpnTracker tracker) { 4174 // Shutdown any existing tracker 4175 final LockdownVpnTracker existing = mLockdownTracker; 4176 mLockdownTracker = null; 4177 if (existing != null) { 4178 existing.shutdown(); 4179 } 4180 4181 try { 4182 if (tracker != null) { 4183 mNetd.setFirewallEnabled(true); 4184 mNetd.setFirewallInterfaceRule("lo", true); 4185 mLockdownTracker = tracker; 4186 mLockdownTracker.init(); 4187 } else { 4188 mNetd.setFirewallEnabled(false); 4189 } 4190 } catch (RemoteException e) { 4191 // ignored; NMS lives inside system_server 4192 } 4193 } 4194 4195 private void throwIfLockdownEnabled() { 4196 if (mLockdownEnabled) { 4197 throw new IllegalStateException("Unavailable in lockdown mode"); 4198 } 4199 } 4200 4201 public void supplyMessenger(int networkType, Messenger messenger) { 4202 enforceConnectivityInternalPermission(); 4203 4204 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 4205 mNetTrackers[networkType].supplyMessenger(messenger); 4206 } 4207 } 4208 4209 public int findConnectionTypeForIface(String iface) { 4210 enforceConnectivityInternalPermission(); 4211 4212 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 4213 for (NetworkStateTracker tracker : mNetTrackers) { 4214 if (tracker != null) { 4215 LinkProperties lp = tracker.getLinkProperties(); 4216 if (lp != null && iface.equals(lp.getInterfaceName())) { 4217 return tracker.getNetworkInfo().getType(); 4218 } 4219 } 4220 } 4221 return ConnectivityManager.TYPE_NONE; 4222 } 4223 4224 /** 4225 * Have mobile data fail fast if enabled. 4226 * 4227 * @param enabled DctConstants.ENABLED/DISABLED 4228 */ 4229 private void setEnableFailFastMobileData(int enabled) { 4230 int tag; 4231 4232 if (enabled == DctConstants.ENABLED) { 4233 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 4234 } else { 4235 tag = mEnableFailFastMobileDataTag.get(); 4236 } 4237 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 4238 enabled)); 4239 } 4240 4241 private boolean isMobileDataStateTrackerReady() { 4242 MobileDataStateTracker mdst = 4243 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 4244 return (mdst != null) && (mdst.isReady()); 4245 } 4246 4247 /** 4248 * The ResultReceiver resultCode for checkMobileProvisioning (CMP_RESULT_CODE) 4249 */ 4250 4251 /** 4252 * No connection was possible to the network. 4253 * This is NOT a warm sim. 4254 */ 4255 private static final int CMP_RESULT_CODE_NO_CONNECTION = 0; 4256 4257 /** 4258 * A connection was made to the internet, all is well. 4259 * This is NOT a warm sim. 4260 */ 4261 private static final int CMP_RESULT_CODE_CONNECTABLE = 1; 4262 4263 /** 4264 * A connection was made but no dns server was available to resolve a name to address. 4265 * This is NOT a warm sim since provisioning network is supported. 4266 */ 4267 private static final int CMP_RESULT_CODE_NO_DNS = 2; 4268 4269 /** 4270 * A connection was made but could not open a TCP connection. 4271 * This is NOT a warm sim since provisioning network is supported. 4272 */ 4273 private static final int CMP_RESULT_CODE_NO_TCP_CONNECTION = 3; 4274 4275 /** 4276 * A connection was made but there was a redirection, we appear to be in walled garden. 4277 * This is an indication of a warm sim on a mobile network such as T-Mobile. 4278 */ 4279 private static final int CMP_RESULT_CODE_REDIRECTED = 4; 4280 4281 /** 4282 * The mobile network is a provisioning network. 4283 * This is an indication of a warm sim on a mobile network such as AT&T. 4284 */ 4285 private static final int CMP_RESULT_CODE_PROVISIONING_NETWORK = 5; 4286 4287 /** 4288 * The mobile network is provisioning 4289 */ 4290 private static final int CMP_RESULT_CODE_IS_PROVISIONING = 6; 4291 4292 private AtomicBoolean mIsProvisioningNetwork = new AtomicBoolean(false); 4293 private AtomicBoolean mIsStartingProvisioning = new AtomicBoolean(false); 4294 4295 private AtomicBoolean mIsCheckingMobileProvisioning = new AtomicBoolean(false); 4296 4297 @Override 4298 public int checkMobileProvisioning(int suggestedTimeOutMs) { 4299 int timeOutMs = -1; 4300 if (DBG) log("checkMobileProvisioning: E suggestedTimeOutMs=" + suggestedTimeOutMs); 4301 enforceConnectivityInternalPermission(); 4302 4303 final long token = Binder.clearCallingIdentity(); 4304 try { 4305 timeOutMs = suggestedTimeOutMs; 4306 if (suggestedTimeOutMs > CheckMp.MAX_TIMEOUT_MS) { 4307 timeOutMs = CheckMp.MAX_TIMEOUT_MS; 4308 } 4309 4310 // Check that mobile networks are supported 4311 if (!isNetworkSupported(ConnectivityManager.TYPE_MOBILE) 4312 || !isNetworkSupported(ConnectivityManager.TYPE_MOBILE_HIPRI)) { 4313 if (DBG) log("checkMobileProvisioning: X no mobile network"); 4314 return timeOutMs; 4315 } 4316 4317 // If we're already checking don't do it again 4318 // TODO: Add a queue of results... 4319 if (mIsCheckingMobileProvisioning.getAndSet(true)) { 4320 if (DBG) log("checkMobileProvisioning: X already checking ignore for the moment"); 4321 return timeOutMs; 4322 } 4323 4324 // Start off with mobile notification off 4325 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 4326 4327 CheckMp checkMp = new CheckMp(mContext, this); 4328 CheckMp.CallBack cb = new CheckMp.CallBack() { 4329 @Override 4330 void onComplete(Integer result) { 4331 if (DBG) log("CheckMp.onComplete: result=" + result); 4332 NetworkInfo ni = 4333 mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI].getNetworkInfo(); 4334 switch(result) { 4335 case CMP_RESULT_CODE_CONNECTABLE: 4336 case CMP_RESULT_CODE_NO_CONNECTION: 4337 case CMP_RESULT_CODE_NO_DNS: 4338 case CMP_RESULT_CODE_NO_TCP_CONNECTION: { 4339 if (DBG) log("CheckMp.onComplete: ignore, connected or no connection"); 4340 break; 4341 } 4342 case CMP_RESULT_CODE_REDIRECTED: { 4343 if (DBG) log("CheckMp.onComplete: warm sim"); 4344 String url = getMobileProvisioningUrl(); 4345 if (TextUtils.isEmpty(url)) { 4346 url = getMobileRedirectedProvisioningUrl(); 4347 } 4348 if (TextUtils.isEmpty(url) == false) { 4349 if (DBG) log("CheckMp.onComplete: warm (redirected), url=" + url); 4350 setProvNotificationVisible(true, 4351 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 4352 url); 4353 } else { 4354 if (DBG) log("CheckMp.onComplete: warm (redirected), no url"); 4355 } 4356 break; 4357 } 4358 case CMP_RESULT_CODE_PROVISIONING_NETWORK: { 4359 String url = getMobileProvisioningUrl(); 4360 if (TextUtils.isEmpty(url) == false) { 4361 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), url=" + url); 4362 setProvNotificationVisible(true, 4363 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 4364 url); 4365 // Mark that we've got a provisioning network and 4366 // Disable Mobile Data until user actually starts provisioning. 4367 mIsProvisioningNetwork.set(true); 4368 MobileDataStateTracker mdst = (MobileDataStateTracker) 4369 mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 4370 4371 // Disable radio until user starts provisioning 4372 mdst.setRadio(false); 4373 } else { 4374 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), no url"); 4375 } 4376 break; 4377 } 4378 case CMP_RESULT_CODE_IS_PROVISIONING: { 4379 // FIXME: Need to know when provisioning is done. Probably we can 4380 // check the completion status if successful we're done if we 4381 // "timedout" or still connected to provisioning APN turn off data? 4382 if (DBG) log("CheckMp.onComplete: provisioning started"); 4383 mIsStartingProvisioning.set(false); 4384 break; 4385 } 4386 default: { 4387 loge("CheckMp.onComplete: ignore unexpected result=" + result); 4388 break; 4389 } 4390 } 4391 mIsCheckingMobileProvisioning.set(false); 4392 } 4393 }; 4394 CheckMp.Params params = 4395 new CheckMp.Params(checkMp.getDefaultUrl(), timeOutMs, cb); 4396 if (DBG) log("checkMobileProvisioning: params=" + params); 4397 // TODO: Reenable when calls to the now defunct 4398 // MobileDataStateTracker.isProvisioningNetwork() are removed. 4399 // This code should be moved to the Telephony code. 4400 // checkMp.execute(params); 4401 } finally { 4402 Binder.restoreCallingIdentity(token); 4403 if (DBG) log("checkMobileProvisioning: X"); 4404 } 4405 return timeOutMs; 4406 } 4407 4408 static class CheckMp extends 4409 AsyncTask<CheckMp.Params, Void, Integer> { 4410 private static final String CHECKMP_TAG = "CheckMp"; 4411 4412 // adb shell setprop persist.checkmp.testfailures 1 to enable testing failures 4413 private static boolean mTestingFailures; 4414 4415 // Choosing 4 loops as half of them will use HTTPS and the other half HTTP 4416 private static final int MAX_LOOPS = 4; 4417 4418 // Number of milli-seconds to complete all of the retires 4419 public static final int MAX_TIMEOUT_MS = 60000; 4420 4421 // The socket should retry only 5 seconds, the default is longer 4422 private static final int SOCKET_TIMEOUT_MS = 5000; 4423 4424 // Sleep time for network errors 4425 private static final int NET_ERROR_SLEEP_SEC = 3; 4426 4427 // Sleep time for network route establishment 4428 private static final int NET_ROUTE_ESTABLISHMENT_SLEEP_SEC = 3; 4429 4430 // Short sleep time for polling :( 4431 private static final int POLLING_SLEEP_SEC = 1; 4432 4433 private Context mContext; 4434 private ConnectivityService mCs; 4435 private TelephonyManager mTm; 4436 private Params mParams; 4437 4438 /** 4439 * Parameters for AsyncTask.execute 4440 */ 4441 static class Params { 4442 private String mUrl; 4443 private long mTimeOutMs; 4444 private CallBack mCb; 4445 4446 Params(String url, long timeOutMs, CallBack cb) { 4447 mUrl = url; 4448 mTimeOutMs = timeOutMs; 4449 mCb = cb; 4450 } 4451 4452 @Override 4453 public String toString() { 4454 return "{" + " url=" + mUrl + " mTimeOutMs=" + mTimeOutMs + " mCb=" + mCb + "}"; 4455 } 4456 } 4457 4458 // As explained to me by Brian Carlstrom and Kenny Root, Certificates can be 4459 // issued by name or ip address, for Google its by name so when we construct 4460 // this HostnameVerifier we'll pass the original Uri and use it to verify 4461 // the host. If the host name in the original uril fails we'll test the 4462 // hostname parameter just incase things change. 4463 static class CheckMpHostnameVerifier implements HostnameVerifier { 4464 Uri mOrgUri; 4465 4466 CheckMpHostnameVerifier(Uri orgUri) { 4467 mOrgUri = orgUri; 4468 } 4469 4470 @Override 4471 public boolean verify(String hostname, SSLSession session) { 4472 HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier(); 4473 String orgUriHost = mOrgUri.getHost(); 4474 boolean retVal = hv.verify(orgUriHost, session) || hv.verify(hostname, session); 4475 if (DBG) { 4476 log("isMobileOk: hostnameVerify retVal=" + retVal + " hostname=" + hostname 4477 + " orgUriHost=" + orgUriHost); 4478 } 4479 return retVal; 4480 } 4481 } 4482 4483 /** 4484 * The call back object passed in Params. onComplete will be called 4485 * on the main thread. 4486 */ 4487 abstract static class CallBack { 4488 // Called on the main thread. 4489 abstract void onComplete(Integer result); 4490 } 4491 4492 public CheckMp(Context context, ConnectivityService cs) { 4493 if (Build.IS_DEBUGGABLE) { 4494 mTestingFailures = 4495 SystemProperties.getInt("persist.checkmp.testfailures", 0) == 1; 4496 } else { 4497 mTestingFailures = false; 4498 } 4499 4500 mContext = context; 4501 mCs = cs; 4502 4503 // Setup access to TelephonyService we'll be using. 4504 mTm = (TelephonyManager) mContext.getSystemService( 4505 Context.TELEPHONY_SERVICE); 4506 } 4507 4508 /** 4509 * Get the default url to use for the test. 4510 */ 4511 public String getDefaultUrl() { 4512 // See http://go/clientsdns for usage approval 4513 String server = Settings.Global.getString(mContext.getContentResolver(), 4514 Settings.Global.CAPTIVE_PORTAL_SERVER); 4515 if (server == null) { 4516 server = "clients3.google.com"; 4517 } 4518 return "http://" + server + "/generate_204"; 4519 } 4520 4521 /** 4522 * Detect if its possible to connect to the http url. DNS based detection techniques 4523 * do not work at all hotspots. The best way to check is to perform a request to 4524 * a known address that fetches the data we expect. 4525 */ 4526 private synchronized Integer isMobileOk(Params params) { 4527 Integer result = CMP_RESULT_CODE_NO_CONNECTION; 4528 Uri orgUri = Uri.parse(params.mUrl); 4529 Random rand = new Random(); 4530 mParams = params; 4531 4532 if (mCs.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false) { 4533 result = CMP_RESULT_CODE_NO_CONNECTION; 4534 log("isMobileOk: X not mobile capable result=" + result); 4535 return result; 4536 } 4537 4538 if (mCs.mIsStartingProvisioning.get()) { 4539 result = CMP_RESULT_CODE_IS_PROVISIONING; 4540 log("isMobileOk: X is provisioning result=" + result); 4541 return result; 4542 } 4543 4544 // See if we've already determined we've got a provisioning connection, 4545 // if so we don't need to do anything active. 4546 MobileDataStateTracker mdstDefault = (MobileDataStateTracker) 4547 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 4548 boolean isDefaultProvisioning = mdstDefault.isProvisioningNetwork(); 4549 log("isMobileOk: isDefaultProvisioning=" + isDefaultProvisioning); 4550 4551 MobileDataStateTracker mdstHipri = (MobileDataStateTracker) 4552 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 4553 boolean isHipriProvisioning = mdstHipri.isProvisioningNetwork(); 4554 log("isMobileOk: isHipriProvisioning=" + isHipriProvisioning); 4555 4556 if (isDefaultProvisioning || isHipriProvisioning) { 4557 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 4558 log("isMobileOk: X default || hipri is provisioning result=" + result); 4559 return result; 4560 } 4561 4562 try { 4563 // Continue trying to connect until time has run out 4564 long endTime = SystemClock.elapsedRealtime() + params.mTimeOutMs; 4565 4566 if (!mCs.isMobileDataStateTrackerReady()) { 4567 // Wait for MobileDataStateTracker to be ready. 4568 if (DBG) log("isMobileOk: mdst is not ready"); 4569 while(SystemClock.elapsedRealtime() < endTime) { 4570 if (mCs.isMobileDataStateTrackerReady()) { 4571 // Enable fail fast as we'll do retries here and use a 4572 // hipri connection so the default connection stays active. 4573 if (DBG) log("isMobileOk: mdst ready, enable fail fast of mobile data"); 4574 mCs.setEnableFailFastMobileData(DctConstants.ENABLED); 4575 break; 4576 } 4577 sleep(POLLING_SLEEP_SEC); 4578 } 4579 } 4580 4581 log("isMobileOk: start hipri url=" + params.mUrl); 4582 4583 // First wait until we can start using hipri 4584 Binder binder = new Binder(); 4585 while(SystemClock.elapsedRealtime() < endTime) { 4586 int ret = mCs.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 4587 Phone.FEATURE_ENABLE_HIPRI, binder); 4588 if ((ret == PhoneConstants.APN_ALREADY_ACTIVE) 4589 || (ret == PhoneConstants.APN_REQUEST_STARTED)) { 4590 log("isMobileOk: hipri started"); 4591 break; 4592 } 4593 if (VDBG) log("isMobileOk: hipri not started yet"); 4594 result = CMP_RESULT_CODE_NO_CONNECTION; 4595 sleep(POLLING_SLEEP_SEC); 4596 } 4597 4598 // Continue trying to connect until time has run out 4599 while(SystemClock.elapsedRealtime() < endTime) { 4600 try { 4601 // Wait for hipri to connect. 4602 // TODO: Don't poll and handle situation where hipri fails 4603 // because default is retrying. See b/9569540 4604 NetworkInfo.State state = mCs 4605 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 4606 if (state != NetworkInfo.State.CONNECTED) { 4607 if (true/*VDBG*/) { 4608 log("isMobileOk: not connected ni=" + 4609 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 4610 } 4611 sleep(POLLING_SLEEP_SEC); 4612 result = CMP_RESULT_CODE_NO_CONNECTION; 4613 continue; 4614 } 4615 4616 // Hipri has started check if this is a provisioning url 4617 MobileDataStateTracker mdst = (MobileDataStateTracker) 4618 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 4619 if (mdst.isProvisioningNetwork()) { 4620 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 4621 if (DBG) log("isMobileOk: X isProvisioningNetwork result=" + result); 4622 return result; 4623 } else { 4624 if (DBG) log("isMobileOk: isProvisioningNetwork is false, continue"); 4625 } 4626 4627 // Get of the addresses associated with the url host. We need to use the 4628 // address otherwise HttpURLConnection object will use the name to get 4629 // the addresses and will try every address but that will bypass the 4630 // route to host we setup and the connection could succeed as the default 4631 // interface might be connected to the internet via wifi or other interface. 4632 InetAddress[] addresses; 4633 try { 4634 addresses = InetAddress.getAllByName(orgUri.getHost()); 4635 } catch (UnknownHostException e) { 4636 result = CMP_RESULT_CODE_NO_DNS; 4637 log("isMobileOk: X UnknownHostException result=" + result); 4638 return result; 4639 } 4640 log("isMobileOk: addresses=" + inetAddressesToString(addresses)); 4641 4642 // Get the type of addresses supported by this link 4643 LinkProperties lp = mCs.getLinkPropertiesForTypeInternal( 4644 ConnectivityManager.TYPE_MOBILE_HIPRI); 4645 boolean linkHasIpv4 = lp.hasIPv4Address(); 4646 boolean linkHasIpv6 = lp.hasGlobalIPv6Address(); 4647 log("isMobileOk: linkHasIpv4=" + linkHasIpv4 4648 + " linkHasIpv6=" + linkHasIpv6); 4649 4650 final ArrayList<InetAddress> validAddresses = 4651 new ArrayList<InetAddress>(addresses.length); 4652 4653 for (InetAddress addr : addresses) { 4654 if (((addr instanceof Inet4Address) && linkHasIpv4) || 4655 ((addr instanceof Inet6Address) && linkHasIpv6)) { 4656 validAddresses.add(addr); 4657 } 4658 } 4659 4660 if (validAddresses.size() == 0) { 4661 return CMP_RESULT_CODE_NO_CONNECTION; 4662 } 4663 4664 int addrTried = 0; 4665 while (true) { 4666 // Loop through at most MAX_LOOPS valid addresses or until 4667 // we run out of time 4668 if (addrTried++ >= MAX_LOOPS) { 4669 log("isMobileOk: too many loops tried - giving up"); 4670 break; 4671 } 4672 if (SystemClock.elapsedRealtime() >= endTime) { 4673 log("isMobileOk: spend too much time - giving up"); 4674 break; 4675 } 4676 4677 InetAddress hostAddr = validAddresses.get(rand.nextInt( 4678 validAddresses.size())); 4679 4680 // Make a route to host so we check the specific interface. 4681 if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI, 4682 hostAddr.getAddress(), null)) { 4683 // Wait a short time to be sure the route is established ?? 4684 log("isMobileOk:" 4685 + " wait to establish route to hostAddr=" + hostAddr); 4686 sleep(NET_ROUTE_ESTABLISHMENT_SLEEP_SEC); 4687 } else { 4688 log("isMobileOk:" 4689 + " could not establish route to hostAddr=" + hostAddr); 4690 // Wait a short time before the next attempt 4691 sleep(NET_ERROR_SLEEP_SEC); 4692 continue; 4693 } 4694 4695 // Rewrite the url to have numeric address to use the specific route 4696 // using http for half the attempts and https for the other half. 4697 // Doing https first and http second as on a redirected walled garden 4698 // such as t-mobile uses we get a SocketTimeoutException: "SSL 4699 // handshake timed out" which we declare as 4700 // CMP_RESULT_CODE_NO_TCP_CONNECTION. We could change this, but by 4701 // having http second we will be using logic used for some time. 4702 URL newUrl; 4703 String scheme = (addrTried <= (MAX_LOOPS/2)) ? "https" : "http"; 4704 newUrl = new URL(scheme, hostAddr.getHostAddress(), 4705 orgUri.getPath()); 4706 log("isMobileOk: newUrl=" + newUrl); 4707 4708 HttpURLConnection urlConn = null; 4709 try { 4710 // Open the connection set the request headers and get the response 4711 urlConn = (HttpURLConnection)newUrl.openConnection( 4712 java.net.Proxy.NO_PROXY); 4713 if (scheme.equals("https")) { 4714 ((HttpsURLConnection)urlConn).setHostnameVerifier( 4715 new CheckMpHostnameVerifier(orgUri)); 4716 } 4717 urlConn.setInstanceFollowRedirects(false); 4718 urlConn.setConnectTimeout(SOCKET_TIMEOUT_MS); 4719 urlConn.setReadTimeout(SOCKET_TIMEOUT_MS); 4720 urlConn.setUseCaches(false); 4721 urlConn.setAllowUserInteraction(false); 4722 // Set the "Connection" to "Close" as by default "Keep-Alive" 4723 // is used which is useless in this case. 4724 urlConn.setRequestProperty("Connection", "close"); 4725 int responseCode = urlConn.getResponseCode(); 4726 4727 // For debug display the headers 4728 Map<String, List<String>> headers = urlConn.getHeaderFields(); 4729 log("isMobileOk: headers=" + headers); 4730 4731 // Close the connection 4732 urlConn.disconnect(); 4733 urlConn = null; 4734 4735 if (mTestingFailures) { 4736 // Pretend no connection, this tests using http and https 4737 result = CMP_RESULT_CODE_NO_CONNECTION; 4738 log("isMobileOk: TESTING_FAILURES, pretend no connction"); 4739 continue; 4740 } 4741 4742 if (responseCode == 204) { 4743 // Return 4744 result = CMP_RESULT_CODE_CONNECTABLE; 4745 log("isMobileOk: X got expected responseCode=" + responseCode 4746 + " result=" + result); 4747 return result; 4748 } else { 4749 // Retry to be sure this was redirected, we've gotten 4750 // occasions where a server returned 200 even though 4751 // the device didn't have a "warm" sim. 4752 log("isMobileOk: not expected responseCode=" + responseCode); 4753 // TODO - it would be nice in the single-address case to do 4754 // another DNS resolve here, but flushing the cache is a bit 4755 // heavy-handed. 4756 result = CMP_RESULT_CODE_REDIRECTED; 4757 } 4758 } catch (Exception e) { 4759 log("isMobileOk: HttpURLConnection Exception" + e); 4760 result = CMP_RESULT_CODE_NO_TCP_CONNECTION; 4761 if (urlConn != null) { 4762 urlConn.disconnect(); 4763 urlConn = null; 4764 } 4765 sleep(NET_ERROR_SLEEP_SEC); 4766 continue; 4767 } 4768 } 4769 log("isMobileOk: X loops|timed out result=" + result); 4770 return result; 4771 } catch (Exception e) { 4772 log("isMobileOk: Exception e=" + e); 4773 continue; 4774 } 4775 } 4776 log("isMobileOk: timed out"); 4777 } finally { 4778 log("isMobileOk: F stop hipri"); 4779 mCs.setEnableFailFastMobileData(DctConstants.DISABLED); 4780 mCs.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 4781 Phone.FEATURE_ENABLE_HIPRI); 4782 4783 // Wait for hipri to disconnect. 4784 long endTime = SystemClock.elapsedRealtime() + 5000; 4785 4786 while(SystemClock.elapsedRealtime() < endTime) { 4787 NetworkInfo.State state = mCs 4788 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 4789 if (state != NetworkInfo.State.DISCONNECTED) { 4790 if (VDBG) { 4791 log("isMobileOk: connected ni=" + 4792 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 4793 } 4794 sleep(POLLING_SLEEP_SEC); 4795 continue; 4796 } 4797 } 4798 4799 log("isMobileOk: X result=" + result); 4800 } 4801 return result; 4802 } 4803 4804 @Override 4805 protected Integer doInBackground(Params... params) { 4806 return isMobileOk(params[0]); 4807 } 4808 4809 @Override 4810 protected void onPostExecute(Integer result) { 4811 log("onPostExecute: result=" + result); 4812 if ((mParams != null) && (mParams.mCb != null)) { 4813 mParams.mCb.onComplete(result); 4814 } 4815 } 4816 4817 private String inetAddressesToString(InetAddress[] addresses) { 4818 StringBuffer sb = new StringBuffer(); 4819 boolean firstTime = true; 4820 for(InetAddress addr : addresses) { 4821 if (firstTime) { 4822 firstTime = false; 4823 } else { 4824 sb.append(","); 4825 } 4826 sb.append(addr); 4827 } 4828 return sb.toString(); 4829 } 4830 4831 private void printNetworkInfo() { 4832 boolean hasIccCard = mTm.hasIccCard(); 4833 int simState = mTm.getSimState(); 4834 log("hasIccCard=" + hasIccCard 4835 + " simState=" + simState); 4836 NetworkInfo[] ni = mCs.getAllNetworkInfo(); 4837 if (ni != null) { 4838 log("ni.length=" + ni.length); 4839 for (NetworkInfo netInfo: ni) { 4840 log("netInfo=" + netInfo.toString()); 4841 } 4842 } else { 4843 log("no network info ni=null"); 4844 } 4845 } 4846 4847 /** 4848 * Sleep for a few seconds then return. 4849 * @param seconds 4850 */ 4851 private static void sleep(int seconds) { 4852 long stopTime = System.nanoTime() + (seconds * 1000000000); 4853 long sleepTime; 4854 while ((sleepTime = stopTime - System.nanoTime()) > 0) { 4855 try { 4856 Thread.sleep(sleepTime / 1000000); 4857 } catch (InterruptedException ignored) { 4858 } 4859 } 4860 } 4861 4862 private static void log(String s) { 4863 Slog.d(ConnectivityService.TAG, "[" + CHECKMP_TAG + "] " + s); 4864 } 4865 } 4866 4867 // TODO: Move to ConnectivityManager and make public? 4868 private static final String CONNECTED_TO_PROVISIONING_NETWORK_ACTION = 4869 "com.android.server.connectivityservice.CONNECTED_TO_PROVISIONING_NETWORK_ACTION"; 4870 4871 private BroadcastReceiver mProvisioningReceiver = new BroadcastReceiver() { 4872 @Override 4873 public void onReceive(Context context, Intent intent) { 4874 if (intent.getAction().equals(CONNECTED_TO_PROVISIONING_NETWORK_ACTION)) { 4875 handleMobileProvisioningAction(intent.getStringExtra("EXTRA_URL")); 4876 } 4877 } 4878 }; 4879 4880 private void handleMobileProvisioningAction(String url) { 4881 // Mark notification as not visible 4882 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 4883 4884 // Check airplane mode 4885 boolean isAirplaneModeOn = Settings.System.getInt(mContext.getContentResolver(), 4886 Settings.Global.AIRPLANE_MODE_ON, 0) == 1; 4887 // If provisioning network and not in airplane mode handle as a special case, 4888 // otherwise launch browser with the intent directly. 4889 if (mIsProvisioningNetwork.get() && !isAirplaneModeOn) { 4890 if (DBG) log("handleMobileProvisioningAction: on prov network enable then launch"); 4891 mIsProvisioningNetwork.set(false); 4892// mIsStartingProvisioning.set(true); 4893// MobileDataStateTracker mdst = (MobileDataStateTracker) 4894// mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 4895 // Radio was disabled on CMP_RESULT_CODE_PROVISIONING_NETWORK, enable it here 4896// mdst.setRadio(true); 4897// mdst.setEnableFailFastMobileData(DctConstants.ENABLED); 4898// mdst.enableMobileProvisioning(url); 4899 } else { 4900 if (DBG) log("handleMobileProvisioningAction: not prov network"); 4901 mIsProvisioningNetwork.set(false); 4902 // Check for apps that can handle provisioning first 4903 Intent provisioningIntent = new Intent(TelephonyIntents.ACTION_CARRIER_SETUP); 4904 provisioningIntent.addCategory(TelephonyIntents.CATEGORY_MCCMNC_PREFIX 4905 + mTelephonyManager.getSimOperator()); 4906 if (mContext.getPackageManager().resolveActivity(provisioningIntent, 0 /* flags */) 4907 != null) { 4908 provisioningIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 4909 Intent.FLAG_ACTIVITY_NEW_TASK); 4910 mContext.startActivity(provisioningIntent); 4911 } else { 4912 // If no apps exist, use standard URL ACTION_VIEW method 4913 Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, 4914 Intent.CATEGORY_APP_BROWSER); 4915 newIntent.setData(Uri.parse(url)); 4916 newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 4917 Intent.FLAG_ACTIVITY_NEW_TASK); 4918 try { 4919 mContext.startActivity(newIntent); 4920 } catch (ActivityNotFoundException e) { 4921 loge("handleMobileProvisioningAction: startActivity failed" + e); 4922 } 4923 } 4924 } 4925 } 4926 4927 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 4928 private volatile boolean mIsNotificationVisible = false; 4929 4930 private void setProvNotificationVisible(boolean visible, int networkType, String extraInfo, 4931 String url) { 4932 if (DBG) { 4933 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 4934 + " extraInfo=" + extraInfo + " url=" + url); 4935 } 4936 Intent intent = null; 4937 PendingIntent pendingIntent = null; 4938 if (visible) { 4939 switch (networkType) { 4940 case ConnectivityManager.TYPE_WIFI: 4941 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 4942 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 4943 Intent.FLAG_ACTIVITY_NEW_TASK); 4944 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 4945 break; 4946 case ConnectivityManager.TYPE_MOBILE: 4947 case ConnectivityManager.TYPE_MOBILE_HIPRI: 4948 intent = new Intent(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 4949 intent.putExtra("EXTRA_URL", url); 4950 intent.setFlags(0); 4951 pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 4952 break; 4953 default: 4954 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 4955 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 4956 Intent.FLAG_ACTIVITY_NEW_TASK); 4957 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 4958 break; 4959 } 4960 } 4961 setProvNotificationVisibleIntent(visible, networkType, extraInfo, pendingIntent); 4962 } 4963 4964 private void setProvNotificationVisibleIntent(boolean visible, int networkType, 4965 String extraInfo, PendingIntent intent) { 4966 if (DBG) { 4967 log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + 4968 networkType + " extraInfo=" + extraInfo); 4969 } 4970 4971 Resources r = Resources.getSystem(); 4972 NotificationManager notificationManager = (NotificationManager) mContext 4973 .getSystemService(Context.NOTIFICATION_SERVICE); 4974 4975 if (visible) { 4976 CharSequence title; 4977 CharSequence details; 4978 int icon; 4979 Notification notification = new Notification(); 4980 switch (networkType) { 4981 case ConnectivityManager.TYPE_WIFI: 4982 title = r.getString(R.string.wifi_available_sign_in, 0); 4983 details = r.getString(R.string.network_available_sign_in_detailed, 4984 extraInfo); 4985 icon = R.drawable.stat_notify_wifi_in_range; 4986 break; 4987 case ConnectivityManager.TYPE_MOBILE: 4988 case ConnectivityManager.TYPE_MOBILE_HIPRI: 4989 title = r.getString(R.string.network_available_sign_in, 0); 4990 // TODO: Change this to pull from NetworkInfo once a printable 4991 // name has been added to it 4992 details = mTelephonyManager.getNetworkOperatorName(); 4993 icon = R.drawable.stat_notify_rssi_in_range; 4994 break; 4995 default: 4996 title = r.getString(R.string.network_available_sign_in, 0); 4997 details = r.getString(R.string.network_available_sign_in_detailed, 4998 extraInfo); 4999 icon = R.drawable.stat_notify_rssi_in_range; 5000 break; 5001 } 5002 5003 notification.when = 0; 5004 notification.icon = icon; 5005 notification.flags = Notification.FLAG_AUTO_CANCEL; 5006 notification.tickerText = title; 5007 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 5008 notification.contentIntent = intent; 5009 5010 try { 5011 notificationManager.notify(NOTIFICATION_ID, networkType, notification); 5012 } catch (NullPointerException npe) { 5013 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 5014 npe.printStackTrace(); 5015 } 5016 } else { 5017 try { 5018 notificationManager.cancel(NOTIFICATION_ID, networkType); 5019 } catch (NullPointerException npe) { 5020 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 5021 npe.printStackTrace(); 5022 } 5023 } 5024 mIsNotificationVisible = visible; 5025 } 5026 5027 /** Location to an updatable file listing carrier provisioning urls. 5028 * An example: 5029 * 5030 * <?xml version="1.0" encoding="utf-8"?> 5031 * <provisioningUrls> 5032 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 5033 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 5034 * </provisioningUrls> 5035 */ 5036 private static final String PROVISIONING_URL_PATH = 5037 "/data/misc/radio/provisioning_urls.xml"; 5038 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 5039 5040 /** XML tag for root element. */ 5041 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 5042 /** XML tag for individual url */ 5043 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 5044 /** XML tag for redirected url */ 5045 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 5046 /** XML attribute for mcc */ 5047 private static final String ATTR_MCC = "mcc"; 5048 /** XML attribute for mnc */ 5049 private static final String ATTR_MNC = "mnc"; 5050 5051 private static final int REDIRECTED_PROVISIONING = 1; 5052 private static final int PROVISIONING = 2; 5053 5054 private String getProvisioningUrlBaseFromFile(int type) { 5055 FileReader fileReader = null; 5056 XmlPullParser parser = null; 5057 Configuration config = mContext.getResources().getConfiguration(); 5058 String tagType; 5059 5060 switch (type) { 5061 case PROVISIONING: 5062 tagType = TAG_PROVISIONING_URL; 5063 break; 5064 case REDIRECTED_PROVISIONING: 5065 tagType = TAG_REDIRECTED_URL; 5066 break; 5067 default: 5068 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 5069 type); 5070 } 5071 5072 try { 5073 fileReader = new FileReader(mProvisioningUrlFile); 5074 parser = Xml.newPullParser(); 5075 parser.setInput(fileReader); 5076 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 5077 5078 while (true) { 5079 XmlUtils.nextElement(parser); 5080 5081 String element = parser.getName(); 5082 if (element == null) break; 5083 5084 if (element.equals(tagType)) { 5085 String mcc = parser.getAttributeValue(null, ATTR_MCC); 5086 try { 5087 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 5088 String mnc = parser.getAttributeValue(null, ATTR_MNC); 5089 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 5090 parser.next(); 5091 if (parser.getEventType() == XmlPullParser.TEXT) { 5092 return parser.getText(); 5093 } 5094 } 5095 } 5096 } catch (NumberFormatException e) { 5097 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 5098 } 5099 } 5100 } 5101 return null; 5102 } catch (FileNotFoundException e) { 5103 loge("Carrier Provisioning Urls file not found"); 5104 } catch (XmlPullParserException e) { 5105 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 5106 } catch (IOException e) { 5107 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 5108 } finally { 5109 if (fileReader != null) { 5110 try { 5111 fileReader.close(); 5112 } catch (IOException e) {} 5113 } 5114 } 5115 return null; 5116 } 5117 5118 @Override 5119 public String getMobileRedirectedProvisioningUrl() { 5120 enforceConnectivityInternalPermission(); 5121 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 5122 if (TextUtils.isEmpty(url)) { 5123 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 5124 } 5125 return url; 5126 } 5127 5128 @Override 5129 public String getMobileProvisioningUrl() { 5130 enforceConnectivityInternalPermission(); 5131 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 5132 if (TextUtils.isEmpty(url)) { 5133 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 5134 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 5135 } else { 5136 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 5137 } 5138 // populate the iccid, imei and phone number in the provisioning url. 5139 if (!TextUtils.isEmpty(url)) { 5140 String phoneNumber = mTelephonyManager.getLine1Number(); 5141 if (TextUtils.isEmpty(phoneNumber)) { 5142 phoneNumber = "0000000000"; 5143 } 5144 url = String.format(url, 5145 mTelephonyManager.getSimSerialNumber() /* ICCID */, 5146 mTelephonyManager.getDeviceId() /* IMEI */, 5147 phoneNumber /* Phone numer */); 5148 } 5149 5150 return url; 5151 } 5152 5153 @Override 5154 public void setProvisioningNotificationVisible(boolean visible, int networkType, 5155 String extraInfo, String url) { 5156 enforceConnectivityInternalPermission(); 5157 setProvNotificationVisible(visible, networkType, extraInfo, url); 5158 } 5159 5160 @Override 5161 public void setAirplaneMode(boolean enable) { 5162 enforceConnectivityInternalPermission(); 5163 final long ident = Binder.clearCallingIdentity(); 5164 try { 5165 final ContentResolver cr = mContext.getContentResolver(); 5166 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 5167 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 5168 intent.putExtra("state", enable); 5169 mContext.sendBroadcast(intent); 5170 } finally { 5171 Binder.restoreCallingIdentity(ident); 5172 } 5173 } 5174 5175 private void onUserStart(int userId) { 5176 synchronized(mVpns) { 5177 Vpn userVpn = mVpns.get(userId); 5178 if (userVpn != null) { 5179 loge("Starting user already has a VPN"); 5180 return; 5181 } 5182 userVpn = new Vpn(mHandler.getLooper(), mContext, mNetd, this, userId); 5183 mVpns.put(userId, userVpn); 5184 } 5185 } 5186 5187 private void onUserStop(int userId) { 5188 synchronized(mVpns) { 5189 Vpn userVpn = mVpns.get(userId); 5190 if (userVpn == null) { 5191 loge("Stopping user has no VPN"); 5192 return; 5193 } 5194 mVpns.delete(userId); 5195 } 5196 } 5197 5198 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 5199 @Override 5200 public void onReceive(Context context, Intent intent) { 5201 final String action = intent.getAction(); 5202 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 5203 if (userId == UserHandle.USER_NULL) return; 5204 5205 if (Intent.ACTION_USER_STARTING.equals(action)) { 5206 onUserStart(userId); 5207 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 5208 onUserStop(userId); 5209 } 5210 } 5211 }; 5212 5213 @Override 5214 public LinkQualityInfo getLinkQualityInfo(int networkType) { 5215 enforceAccessPermission(); 5216 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 5217 return mNetTrackers[networkType].getLinkQualityInfo(); 5218 } else { 5219 return null; 5220 } 5221 } 5222 5223 @Override 5224 public LinkQualityInfo getActiveLinkQualityInfo() { 5225 enforceAccessPermission(); 5226 if (isNetworkTypeValid(mActiveDefaultNetwork) && 5227 mNetTrackers[mActiveDefaultNetwork] != null) { 5228 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 5229 } else { 5230 return null; 5231 } 5232 } 5233 5234 @Override 5235 public LinkQualityInfo[] getAllLinkQualityInfo() { 5236 enforceAccessPermission(); 5237 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 5238 for (NetworkStateTracker tracker : mNetTrackers) { 5239 if (tracker != null) { 5240 LinkQualityInfo li = tracker.getLinkQualityInfo(); 5241 if (li != null) { 5242 result.add(li); 5243 } 5244 } 5245 } 5246 5247 return result.toArray(new LinkQualityInfo[result.size()]); 5248 } 5249 5250 /* Infrastructure for network sampling */ 5251 5252 private void handleNetworkSamplingTimeout() { 5253 5254 log("Sampling interval elapsed, updating statistics .."); 5255 5256 // initialize list of interfaces .. 5257 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 5258 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 5259 for (NetworkStateTracker tracker : mNetTrackers) { 5260 if (tracker != null) { 5261 String ifaceName = tracker.getNetworkInterfaceName(); 5262 if (ifaceName != null) { 5263 mapIfaceToSample.put(ifaceName, null); 5264 } 5265 } 5266 } 5267 5268 // Read samples for all interfaces 5269 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 5270 5271 // process samples for all networks 5272 for (NetworkStateTracker tracker : mNetTrackers) { 5273 if (tracker != null) { 5274 String ifaceName = tracker.getNetworkInterfaceName(); 5275 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 5276 if (ss != null) { 5277 // end the previous sampling cycle 5278 tracker.stopSampling(ss); 5279 // start a new sampling cycle .. 5280 tracker.startSampling(ss); 5281 } 5282 } 5283 } 5284 5285 log("Done."); 5286 5287 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 5288 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 5289 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 5290 5291 if (DBG) log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 5292 5293 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 5294 } 5295 5296 /** 5297 * Sets a network sampling alarm. 5298 */ 5299 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 5300 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 5301 int alarmType; 5302 if (Resources.getSystem().getBoolean( 5303 R.bool.config_networkSamplingWakesDevice)) { 5304 alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP; 5305 } else { 5306 alarmType = AlarmManager.ELAPSED_REALTIME; 5307 } 5308 mAlarmManager.set(alarmType, wakeupTime, intent); 5309 } 5310 5311 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 5312 new HashMap<Messenger, NetworkFactoryInfo>(); 5313 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 5314 new HashMap<NetworkRequest, NetworkRequestInfo>(); 5315 5316 private static class NetworkFactoryInfo { 5317 public final String name; 5318 public final Messenger messenger; 5319 public final AsyncChannel asyncChannel; 5320 5321 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 5322 this.name = name; 5323 this.messenger = messenger; 5324 this.asyncChannel = asyncChannel; 5325 } 5326 } 5327 5328 private class NetworkRequestInfo implements IBinder.DeathRecipient { 5329 static final boolean REQUEST = true; 5330 static final boolean LISTEN = false; 5331 5332 final NetworkRequest request; 5333 IBinder mBinder; 5334 final int mPid; 5335 final int mUid; 5336 final Messenger messenger; 5337 final boolean isRequest; 5338 5339 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 5340 super(); 5341 messenger = m; 5342 request = r; 5343 mBinder = binder; 5344 mPid = getCallingPid(); 5345 mUid = getCallingUid(); 5346 this.isRequest = isRequest; 5347 5348 try { 5349 mBinder.linkToDeath(this, 0); 5350 } catch (RemoteException e) { 5351 binderDied(); 5352 } 5353 } 5354 5355 void unlinkDeathRecipient() { 5356 mBinder.unlinkToDeath(this, 0); 5357 } 5358 5359 public void binderDied() { 5360 log("ConnectivityService NetworkRequestInfo binderDied(" + 5361 request + ", " + mBinder + ")"); 5362 releaseNetworkRequest(request); 5363 } 5364 5365 public String toString() { 5366 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 5367 mPid + " for " + request; 5368 } 5369 } 5370 5371 @Override 5372 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 5373 Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { 5374 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 5375 == false) { 5376 enforceConnectivityInternalPermission(); 5377 } else { 5378 enforceChangePermission(); 5379 } 5380 5381 if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { 5382 throw new IllegalArgumentException("Bad timeout specified"); 5383 } 5384 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 5385 networkCapabilities), legacyType, nextNetworkRequestId()); 5386 if (DBG) log("requestNetwork for " + networkRequest); 5387 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 5388 NetworkRequestInfo.REQUEST); 5389 5390 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 5391 if (timeoutMs > 0) { 5392 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 5393 nri), timeoutMs); 5394 } 5395 return networkRequest; 5396 } 5397 5398 @Override 5399 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 5400 PendingIntent operation) { 5401 // TODO 5402 return null; 5403 } 5404 5405 @Override 5406 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 5407 Messenger messenger, IBinder binder) { 5408 enforceAccessPermission(); 5409 5410 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 5411 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 5412 if (DBG) log("listenForNetwork for " + networkRequest); 5413 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 5414 NetworkRequestInfo.LISTEN); 5415 5416 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 5417 return networkRequest; 5418 } 5419 5420 @Override 5421 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 5422 PendingIntent operation) { 5423 } 5424 5425 @Override 5426 public void releaseNetworkRequest(NetworkRequest networkRequest) { 5427 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), 5428 0, networkRequest)); 5429 } 5430 5431 @Override 5432 public void registerNetworkFactory(Messenger messenger, String name) { 5433 enforceConnectivityInternalPermission(); 5434 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 5435 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 5436 } 5437 5438 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 5439 if (VDBG) log("Got NetworkFactory Messenger for " + nfi.name); 5440 mNetworkFactoryInfos.put(nfi.messenger, nfi); 5441 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 5442 } 5443 5444 @Override 5445 public void unregisterNetworkFactory(Messenger messenger) { 5446 enforceConnectivityInternalPermission(); 5447 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 5448 } 5449 5450 private void handleUnregisterNetworkFactory(Messenger messenger) { 5451 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 5452 if (nfi == null) { 5453 if (VDBG) log("Failed to find Messenger in unregisterNetworkFactory"); 5454 return; 5455 } 5456 if (VDBG) log("unregisterNetworkFactory for " + nfi.name); 5457 } 5458 5459 /** 5460 * NetworkAgentInfo supporting a request by requestId. 5461 * These have already been vetted (their Capabilities satisfy the request) 5462 * and the are the highest scored network available. 5463 * the are keyed off the Requests requestId. 5464 */ 5465 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 5466 new SparseArray<NetworkAgentInfo>(); 5467 5468 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 5469 new SparseArray<NetworkAgentInfo>(); 5470 5471 // NetworkAgentInfo keyed off its connecting messenger 5472 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 5473 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 5474 new HashMap<Messenger, NetworkAgentInfo>(); 5475 5476 private final NetworkRequest mDefaultRequest; 5477 5478 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 5479 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 5480 int currentScore) { 5481 enforceConnectivityInternalPermission(); 5482 5483 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), nextNetId(), 5484 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 5485 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler); 5486 if (VDBG) log("registerNetworkAgent " + nai); 5487 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 5488 } 5489 5490 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 5491 if (VDBG) log("Got NetworkAgent Messenger"); 5492 mNetworkAgentInfos.put(na.messenger, na); 5493 synchronized (mNetworkForNetId) { 5494 mNetworkForNetId.put(na.network.netId, na); 5495 } 5496 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 5497 NetworkInfo networkInfo = na.networkInfo; 5498 na.networkInfo = null; 5499 updateNetworkInfo(na, networkInfo); 5500 } 5501 5502 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 5503 LinkProperties newLp = networkAgent.linkProperties; 5504 int netId = networkAgent.network.netId; 5505 5506 updateInterfaces(newLp, oldLp, netId); 5507 updateMtu(newLp, oldLp); 5508 // TODO - figure out what to do for clat 5509// for (LinkProperties lp : newLp.getStackedLinks()) { 5510// updateMtu(lp, null); 5511// } 5512 updateRoutes(newLp, oldLp, netId); 5513 updateDnses(newLp, oldLp, netId); 5514 updateClat(newLp, oldLp, networkAgent); 5515 } 5516 5517 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { 5518 // Update 464xlat state. 5519 if (mClat.requiresClat(na)) { 5520 5521 // If the connection was previously using clat, but is not using it now, stop the clat 5522 // daemon. Normally, this happens automatically when the connection disconnects, but if 5523 // the disconnect is not reported, or if the connection's LinkProperties changed for 5524 // some other reason (e.g., handoff changes the IP addresses on the link), it would 5525 // still be running. If it's not running, then stopping it is a no-op. 5526 if (Nat464Xlat.isRunningClat(oldLp) && !Nat464Xlat.isRunningClat(newLp)) { 5527 mClat.stopClat(); 5528 } 5529 // If the link requires clat to be running, then start the daemon now. 5530 if (na.networkInfo.isConnected()) { 5531 mClat.startClat(na); 5532 } else { 5533 mClat.stopClat(); 5534 } 5535 } 5536 } 5537 5538 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 5539 CompareResult<String> interfaceDiff = new CompareResult<String>(); 5540 if (oldLp != null) { 5541 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 5542 } else if (newLp != null) { 5543 interfaceDiff.added = newLp.getAllInterfaceNames(); 5544 } 5545 for (String iface : interfaceDiff.added) { 5546 try { 5547 mNetd.addInterfaceToNetwork(iface, netId); 5548 } catch (Exception e) { 5549 loge("Exception adding interface: " + e); 5550 } 5551 } 5552 for (String iface : interfaceDiff.removed) { 5553 try { 5554 mNetd.removeInterfaceFromNetwork(iface, netId); 5555 } catch (Exception e) { 5556 loge("Exception removing interface: " + e); 5557 } 5558 } 5559 } 5560 5561 private void updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 5562 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 5563 if (oldLp != null) { 5564 routeDiff = oldLp.compareAllRoutes(newLp); 5565 } else if (newLp != null) { 5566 routeDiff.added = newLp.getAllRoutes(); 5567 } 5568 5569 // add routes before removing old in case it helps with continuous connectivity 5570 5571 // do this twice, adding non-nexthop routes first, then routes they are dependent on 5572 for (RouteInfo route : routeDiff.added) { 5573 if (route.hasGateway()) continue; 5574 try { 5575 mNetd.addRoute(netId, route); 5576 } catch (Exception e) { 5577 loge("Exception in addRoute for non-gateway: " + e); 5578 } 5579 } 5580 for (RouteInfo route : routeDiff.added) { 5581 if (route.hasGateway() == false) continue; 5582 try { 5583 mNetd.addRoute(netId, route); 5584 } catch (Exception e) { 5585 loge("Exception in addRoute for gateway: " + e); 5586 } 5587 } 5588 5589 for (RouteInfo route : routeDiff.removed) { 5590 try { 5591 mNetd.removeRoute(netId, route); 5592 } catch (Exception e) { 5593 loge("Exception in removeRoute: " + e); 5594 } 5595 } 5596 } 5597 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId) { 5598 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 5599 Collection<InetAddress> dnses = newLp.getDnsServers(); 5600 if (dnses.size() == 0 && mDefaultDns != null) { 5601 dnses = new ArrayList(); 5602 dnses.add(mDefaultDns); 5603 if (DBG) { 5604 loge("no dns provided for netId " + netId + ", so using defaults"); 5605 } 5606 } 5607 try { 5608 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 5609 newLp.getDomains()); 5610 } catch (Exception e) { 5611 loge("Exception in setDnsServersForNetwork: " + e); 5612 } 5613 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 5614 if (defaultNai != null && defaultNai.network.netId == netId) { 5615 setDefaultDnsSystemProperties(dnses); 5616 } 5617 } 5618 } 5619 5620 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 5621 int last = 0; 5622 for (InetAddress dns : dnses) { 5623 ++last; 5624 String key = "net.dns" + last; 5625 String value = dns.getHostAddress(); 5626 SystemProperties.set(key, value); 5627 } 5628 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 5629 String key = "net.dns" + i; 5630 SystemProperties.set(key, ""); 5631 } 5632 mNumDnsEntries = last; 5633 } 5634 5635 5636 private void updateCapabilities(NetworkAgentInfo networkAgent, 5637 NetworkCapabilities networkCapabilities) { 5638 // TODO - what else here? Verify still satisfies everybody? 5639 // Check if satisfies somebody new? call callbacks? 5640 synchronized (networkAgent) { 5641 networkAgent.networkCapabilities = networkCapabilities; 5642 } 5643 } 5644 5645 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 5646 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 5647 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 5648 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 5649 networkRequest); 5650 } 5651 } 5652 5653 private void callCallbackForRequest(NetworkRequestInfo nri, 5654 NetworkAgentInfo networkAgent, int notificationType) { 5655 if (nri.messenger == null) return; // Default request has no msgr 5656 Object o; 5657 int a1 = 0; 5658 int a2 = 0; 5659 switch (notificationType) { 5660 case ConnectivityManager.CALLBACK_LOSING: 5661 a1 = 30 * 1000; // TODO - read this from NetworkMonitor 5662 // fall through 5663 case ConnectivityManager.CALLBACK_PRECHECK: 5664 case ConnectivityManager.CALLBACK_AVAILABLE: 5665 case ConnectivityManager.CALLBACK_LOST: 5666 case ConnectivityManager.CALLBACK_CAP_CHANGED: 5667 case ConnectivityManager.CALLBACK_IP_CHANGED: { 5668 o = new NetworkRequest(nri.request); 5669 a2 = networkAgent.network.netId; 5670 break; 5671 } 5672 case ConnectivityManager.CALLBACK_UNAVAIL: 5673 case ConnectivityManager.CALLBACK_RELEASED: { 5674 o = new NetworkRequest(nri.request); 5675 break; 5676 } 5677 default: { 5678 loge("Unknown notificationType " + notificationType); 5679 return; 5680 } 5681 } 5682 Message msg = Message.obtain(); 5683 msg.arg1 = a1; 5684 msg.arg2 = a2; 5685 msg.obj = o; 5686 msg.what = notificationType; 5687 try { 5688 if (VDBG) log("sending notification " + notificationType + " for " + nri.request); 5689 nri.messenger.send(msg); 5690 } catch (RemoteException e) { 5691 // may occur naturally in the race of binder death. 5692 loge("RemoteException caught trying to send a callback msg for " + nri.request); 5693 } 5694 } 5695 5696 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 5697 if (oldNetwork == null) { 5698 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 5699 return; 5700 } 5701 if (DBG) log("handleLingerComplete for " + oldNetwork.name()); 5702 if (DBG) { 5703 if (oldNetwork.networkRequests.size() != 0) { 5704 loge("Dead network still had " + oldNetwork.networkRequests.size() + " requests"); 5705 } 5706 } 5707 oldNetwork.asyncChannel.disconnect(); 5708 } 5709 5710 private void handleConnectionValidated(NetworkAgentInfo newNetwork) { 5711 if (newNetwork == null) { 5712 loge("Unknown NetworkAgentInfo in handleConnectionValidated"); 5713 return; 5714 } 5715 boolean keep = newNetwork.isVPN(); 5716 boolean isNewDefault = false; 5717 if (DBG) log("handleConnectionValidated for "+newNetwork.name()); 5718 // check if any NetworkRequest wants this NetworkAgent 5719 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 5720 if (VDBG) log(" new Network has: " + newNetwork.networkCapabilities); 5721 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 5722 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 5723 if (newNetwork == currentNetwork) { 5724 if (VDBG) log("Network " + newNetwork.name() + " was already satisfying" + 5725 " request " + nri.request.requestId + ". No change."); 5726 keep = true; 5727 continue; 5728 } 5729 5730 // check if it satisfies the NetworkCapabilities 5731 if (VDBG) log(" checking if request is satisfied: " + nri.request); 5732 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 5733 newNetwork.networkCapabilities)) { 5734 // next check if it's better than any current network we're using for 5735 // this request 5736 if (VDBG) { 5737 log("currentScore = " + 5738 (currentNetwork != null ? currentNetwork.currentScore : 0) + 5739 ", newScore = " + newNetwork.currentScore); 5740 } 5741 if (currentNetwork == null || 5742 currentNetwork.currentScore < newNetwork.currentScore) { 5743 if (currentNetwork != null) { 5744 if (VDBG) log(" accepting network in place of " + currentNetwork.name()); 5745 currentNetwork.networkRequests.remove(nri.request.requestId); 5746 currentNetwork.networkLingered.add(nri.request); 5747 affectedNetworks.add(currentNetwork); 5748 } else { 5749 if (VDBG) log(" accepting network in place of null"); 5750 } 5751 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 5752 newNetwork.addRequest(nri.request); 5753 int legacyType = nri.request.legacyType; 5754 if (legacyType != TYPE_NONE) { 5755 mLegacyTypeTracker.add(legacyType, newNetwork); 5756 } 5757 keep = true; 5758 // TODO - this could get expensive if we have alot of requests for this 5759 // network. Think about if there is a way to reduce this. Push 5760 // netid->request mapping to each factory? 5761 sendUpdatedScoreToFactories(nri.request, newNetwork.currentScore); 5762 if (mDefaultRequest.requestId == nri.request.requestId) { 5763 isNewDefault = true; 5764 updateActiveDefaultNetwork(newNetwork); 5765 if (newNetwork.linkProperties != null) { 5766 setDefaultDnsSystemProperties( 5767 newNetwork.linkProperties.getDnsServers()); 5768 } else { 5769 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 5770 } 5771 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 5772 } 5773 } 5774 } 5775 } 5776 for (NetworkAgentInfo nai : affectedNetworks) { 5777 boolean teardown = !nai.isVPN(); 5778 for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { 5779 NetworkRequest nr = nai.networkRequests.valueAt(i); 5780 try { 5781 if (mNetworkRequests.get(nr).isRequest) { 5782 teardown = false; 5783 } 5784 } catch (Exception e) { 5785 loge("Request " + nr + " not found in mNetworkRequests."); 5786 loge(" it came from request list of " + nai.name()); 5787 } 5788 } 5789 if (teardown) { 5790 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 5791 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 5792 } else { 5793 // not going to linger, so kill the list of linger networks.. only 5794 // notify them of linger if it happens as the result of gaining another, 5795 // but if they transition and old network stays up, don't tell them of linger 5796 // or very delayed loss 5797 nai.networkLingered.clear(); 5798 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 5799 } 5800 } 5801 if (keep) { 5802 if (isNewDefault) { 5803 if (VDBG) log("Switching to new default network: " + newNetwork); 5804 setupDataActivityTracking(newNetwork); 5805 try { 5806 mNetd.setDefaultNetId(newNetwork.network.netId); 5807 } catch (Exception e) { 5808 loge("Exception setting default network :" + e); 5809 } 5810 if (newNetwork.equals(mNetworkForRequestId.get(mDefaultRequest.requestId))) { 5811 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 5812 } 5813 synchronized (ConnectivityService.this) { 5814 // have a new default network, release the transition wakelock in 5815 // a second if it's held. The second pause is to allow apps 5816 // to reconnect over the new network 5817 if (mNetTransitionWakeLock.isHeld()) { 5818 mHandler.sendMessageDelayed(mHandler.obtainMessage( 5819 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 5820 mNetTransitionWakeLockSerialNumber, 0), 5821 1000); 5822 } 5823 } 5824 5825 // this will cause us to come up initially as unconnected and switching 5826 // to connected after our normal pause unless somebody reports us as 5827 // really disconnected 5828 mDefaultInetConditionPublished = 0; 5829 mDefaultConnectionSequence++; 5830 mInetConditionChangeInFlight = false; 5831 // TODO - read the tcp buffer size config string from somewhere 5832 // updateNetworkSettings(); 5833 } 5834 // notify battery stats service about this network 5835 try { 5836 BatteryStatsService.getService().noteNetworkInterfaceType( 5837 newNetwork.linkProperties.getInterfaceName(), 5838 newNetwork.networkInfo.getType()); 5839 } catch (RemoteException e) { } 5840 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 5841 } else { 5842 if (DBG && newNetwork.networkRequests.size() != 0) { 5843 loge("tearing down network with live requests:"); 5844 for (int i=0; i < newNetwork.networkRequests.size(); i++) { 5845 loge(" " + newNetwork.networkRequests.valueAt(i)); 5846 } 5847 } 5848 if (VDBG) log("Validated network turns out to be unwanted. Tear it down."); 5849 newNetwork.asyncChannel.disconnect(); 5850 } 5851 } 5852 5853 5854 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 5855 NetworkInfo.State state = newInfo.getState(); 5856 NetworkInfo oldInfo = null; 5857 synchronized (networkAgent) { 5858 oldInfo = networkAgent.networkInfo; 5859 networkAgent.networkInfo = newInfo; 5860 } 5861 if (networkAgent.isVPN() && mLockdownTracker != null) { 5862 mLockdownTracker.onVpnStateChanged(newInfo); 5863 } 5864 5865 if (oldInfo != null && oldInfo.getState() == state) { 5866 if (VDBG) log("ignoring duplicate network state non-change"); 5867 return; 5868 } 5869 if (DBG) { 5870 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 5871 (oldInfo == null ? "null" : oldInfo.getState()) + 5872 " to " + state); 5873 } 5874 5875 if (state == NetworkInfo.State.CONNECTED) { 5876 try { 5877 // This is likely caused by the fact that this network already 5878 // exists. An example is when a network goes from CONNECTED to 5879 // CONNECTING and back (like wifi on DHCP renew). 5880 // TODO: keep track of which networks we've created, or ask netd 5881 // to tell us whether we've already created this network or not. 5882 if (networkAgent.isVPN()) { 5883 mNetd.createVirtualNetwork(networkAgent.network.netId, 5884 !networkAgent.linkProperties.getDnsServers().isEmpty()); 5885 } else { 5886 mNetd.createPhysicalNetwork(networkAgent.network.netId); 5887 } 5888 } catch (Exception e) { 5889 loge("Error creating network " + networkAgent.network.netId + ": " 5890 + e.getMessage()); 5891 return; 5892 } 5893 5894 updateLinkProperties(networkAgent, null); 5895 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 5896 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 5897 if (networkAgent.isVPN()) { 5898 // Temporarily disable the default proxy (not global). 5899 synchronized (mProxyLock) { 5900 if (!mDefaultProxyDisabled) { 5901 mDefaultProxyDisabled = true; 5902 if (mGlobalProxy == null && mDefaultProxy != null) { 5903 sendProxyBroadcast(null); 5904 } 5905 } 5906 } 5907 // TODO: support proxy per network. 5908 } 5909 } else if (state == NetworkInfo.State.DISCONNECTED || 5910 state == NetworkInfo.State.SUSPENDED) { 5911 networkAgent.asyncChannel.disconnect(); 5912 if (networkAgent.isVPN()) { 5913 synchronized (mProxyLock) { 5914 if (mDefaultProxyDisabled) { 5915 mDefaultProxyDisabled = false; 5916 if (mGlobalProxy == null && mDefaultProxy != null) { 5917 sendProxyBroadcast(mDefaultProxy); 5918 } 5919 } 5920 } 5921 } 5922 } 5923 } 5924 5925 private void updateNetworkScore(NetworkAgentInfo nai, int score) { 5926 if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); 5927 5928 nai.currentScore = score; 5929 5930 // TODO - This will not do the right thing if this network is lowering 5931 // its score and has requests that can be served by other 5932 // currently-active networks, or if the network is increasing its 5933 // score and other networks have requests that can be better served 5934 // by this network. 5935 // 5936 // Really we want to see if any of our requests migrate to other 5937 // active/lingered networks and if any other requests migrate to us (depending 5938 // on increasing/decreasing currentScore. That's a bit of work and probably our 5939 // score checking/network allocation code needs to be modularized so we can understand 5940 // (see handleConnectionValided for an example). 5941 // 5942 // As a first order approx, lets just advertise the new score to factories. If 5943 // somebody can beat it they will nominate a network and our normal net replacement 5944 // code will fire. 5945 for (int i = 0; i < nai.networkRequests.size(); i++) { 5946 NetworkRequest nr = nai.networkRequests.valueAt(i); 5947 sendUpdatedScoreToFactories(nr, score); 5948 } 5949 } 5950 5951 // notify only this one new request of the current state 5952 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 5953 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 5954 // TODO - read state from monitor to decide what to send. 5955// if (nai.networkMonitor.isLingering()) { 5956// notifyType = NetworkCallbacks.LOSING; 5957// } else if (nai.networkMonitor.isEvaluating()) { 5958// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 5959// } 5960 callCallbackForRequest(nri, nai, notifyType); 5961 } 5962 5963 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 5964 if (connected) { 5965 NetworkInfo info = new NetworkInfo(nai.networkInfo); 5966 info.setType(type); 5967 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 5968 } else { 5969 NetworkInfo info = new NetworkInfo(nai.networkInfo); 5970 info.setType(type); 5971 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 5972 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 5973 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 5974 if (info.isFailover()) { 5975 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 5976 nai.networkInfo.setFailover(false); 5977 } 5978 if (info.getReason() != null) { 5979 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 5980 } 5981 if (info.getExtraInfo() != null) { 5982 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 5983 } 5984 NetworkAgentInfo newDefaultAgent = null; 5985 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 5986 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 5987 if (newDefaultAgent != null) { 5988 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 5989 newDefaultAgent.networkInfo); 5990 } else { 5991 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 5992 } 5993 } 5994 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 5995 mDefaultInetConditionPublished); 5996 final Intent immediateIntent = new Intent(intent); 5997 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 5998 sendStickyBroadcast(immediateIntent); 5999 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 6000 if (newDefaultAgent != null) { 6001 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 6002 getConnectivityChangeDelay()); 6003 } 6004 } 6005 } 6006 6007 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 6008 if (VDBG) log("notifyType " + notifyType + " for " + networkAgent.name()); 6009 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 6010 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 6011 NetworkRequestInfo nri = mNetworkRequests.get(nr); 6012 if (VDBG) log(" sending notification for " + nr); 6013 callCallbackForRequest(nri, networkAgent, notifyType); 6014 } 6015 } 6016 6017 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 6018 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 6019 if (nai != null) { 6020 synchronized (nai) { 6021 return new LinkProperties(nai.linkProperties); 6022 } 6023 } 6024 return new LinkProperties(); 6025 } 6026 6027 private NetworkInfo getNetworkInfoForType(int networkType) { 6028 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 6029 return null; 6030 6031 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 6032 if (nai != null) { 6033 NetworkInfo result = new NetworkInfo(nai.networkInfo); 6034 result.setType(networkType); 6035 return result; 6036 } else { 6037 return new NetworkInfo(networkType, 0, "Unknown", ""); 6038 } 6039 } 6040 6041 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 6042 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 6043 if (nai != null) { 6044 synchronized (nai) { 6045 return new NetworkCapabilities(nai.networkCapabilities); 6046 } 6047 } 6048 return new NetworkCapabilities(); 6049 } 6050} 6051