ConnectivityService.java revision 43074032d6ee3576416c86342da3a7a3291049a7
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.Notification; 45import android.app.NotificationManager; 46import android.app.PendingIntent; 47import android.content.ActivityNotFoundException; 48import android.content.BroadcastReceiver; 49import android.content.ContentResolver; 50import android.content.Context; 51import android.content.ContextWrapper; 52import android.content.Intent; 53import android.content.IntentFilter; 54import android.content.pm.PackageManager; 55import android.content.res.Configuration; 56import android.content.res.Resources; 57import android.database.ContentObserver; 58import android.net.ConnectivityManager; 59import android.net.IConnectivityManager; 60import android.net.INetworkManagementEventObserver; 61import android.net.INetworkPolicyListener; 62import android.net.INetworkPolicyManager; 63import android.net.INetworkStatsService; 64import android.net.LinkAddress; 65import android.net.LinkProperties; 66import android.net.LinkProperties.CompareResult; 67import android.net.LinkQualityInfo; 68import android.net.MobileDataStateTracker; 69import android.net.Network; 70import android.net.NetworkAgent; 71import android.net.NetworkCapabilities; 72import android.net.NetworkConfig; 73import android.net.NetworkInfo; 74import android.net.NetworkInfo.DetailedState; 75import android.net.NetworkFactory; 76import android.net.NetworkMisc; 77import android.net.NetworkQuotaInfo; 78import android.net.NetworkRequest; 79import android.net.NetworkState; 80import android.net.NetworkStateTracker; 81import android.net.NetworkUtils; 82import android.net.Proxy; 83import android.net.ProxyDataTracker; 84import android.net.ProxyInfo; 85import android.net.RouteInfo; 86import android.net.SamplingDataTracker; 87import android.net.UidRange; 88import android.net.Uri; 89import android.net.wimax.WimaxManagerConstants; 90import android.os.AsyncTask; 91import android.os.Binder; 92import android.os.Build; 93import android.os.FileUtils; 94import android.os.Handler; 95import android.os.HandlerThread; 96import android.os.IBinder; 97import android.os.INetworkManagementService; 98import android.os.Looper; 99import android.os.Message; 100import android.os.Messenger; 101import android.os.ParcelFileDescriptor; 102import android.os.PowerManager; 103import android.os.Process; 104import android.os.RemoteException; 105import android.os.ServiceManager; 106import android.os.SystemClock; 107import android.os.SystemProperties; 108import android.os.UserHandle; 109import android.os.UserManager; 110import android.provider.Settings; 111import android.security.Credentials; 112import android.security.KeyStore; 113import android.telephony.TelephonyManager; 114import android.text.TextUtils; 115import android.util.Slog; 116import android.util.SparseArray; 117import android.util.SparseIntArray; 118import android.util.Xml; 119 120import com.android.internal.R; 121import com.android.internal.annotations.GuardedBy; 122import com.android.internal.app.IBatteryStats; 123import com.android.internal.net.LegacyVpnInfo; 124import com.android.internal.net.NetworkStatsFactory; 125import com.android.internal.net.VpnConfig; 126import com.android.internal.net.VpnProfile; 127import com.android.internal.telephony.DctConstants; 128import com.android.internal.telephony.Phone; 129import com.android.internal.telephony.PhoneConstants; 130import com.android.internal.telephony.TelephonyIntents; 131import com.android.internal.util.AsyncChannel; 132import com.android.internal.util.IndentingPrintWriter; 133import com.android.internal.util.XmlUtils; 134import com.android.server.am.BatteryStatsService; 135import com.android.server.connectivity.DataConnectionStats; 136import com.android.server.connectivity.Nat464Xlat; 137import com.android.server.connectivity.NetworkAgentInfo; 138import com.android.server.connectivity.NetworkMonitor; 139import com.android.server.connectivity.PacManager; 140import com.android.server.connectivity.Tethering; 141import com.android.server.connectivity.Vpn; 142import com.android.server.net.BaseNetworkObserver; 143import com.android.server.net.LockdownVpnTracker; 144import com.google.android.collect.Lists; 145import com.google.android.collect.Sets; 146 147import dalvik.system.DexClassLoader; 148 149import org.xmlpull.v1.XmlPullParser; 150import org.xmlpull.v1.XmlPullParserException; 151 152import java.io.File; 153import java.io.FileDescriptor; 154import java.io.FileNotFoundException; 155import java.io.FileReader; 156import java.io.IOException; 157import java.io.PrintWriter; 158import java.lang.reflect.Constructor; 159import java.net.HttpURLConnection; 160import java.net.Inet4Address; 161import java.net.Inet6Address; 162import java.net.InetAddress; 163import java.net.URL; 164import java.net.UnknownHostException; 165import java.util.ArrayList; 166import java.util.Arrays; 167import java.util.Collection; 168import java.util.GregorianCalendar; 169import java.util.HashMap; 170import java.util.HashSet; 171import java.util.List; 172import java.util.Map; 173import java.util.Random; 174import java.util.concurrent.atomic.AtomicBoolean; 175import java.util.concurrent.atomic.AtomicInteger; 176 177import javax.net.ssl.HostnameVerifier; 178import javax.net.ssl.HttpsURLConnection; 179import javax.net.ssl.SSLSession; 180 181/** 182 * @hide 183 */ 184public class ConnectivityService extends IConnectivityManager.Stub { 185 private static final String TAG = "ConnectivityService"; 186 187 private static final boolean DBG = true; 188 private static final boolean VDBG = true; // STOPSHIP 189 190 // network sampling debugging 191 private static final boolean SAMPLE_DBG = false; 192 193 private static final boolean LOGD_RULES = false; 194 195 // TODO: create better separation between radio types and network types 196 197 // how long to wait before switching back to a radio's default network 198 private static final int RESTORE_DEFAULT_NETWORK_DELAY = 1 * 60 * 1000; 199 // system property that can override the above value 200 private static final String NETWORK_RESTORE_DELAY_PROP_NAME = 201 "android.telephony.apn-restore"; 202 203 // Default value if FAIL_FAST_TIME_MS is not set 204 private static final int DEFAULT_FAIL_FAST_TIME_MS = 1 * 60 * 1000; 205 // system property that can override DEFAULT_FAIL_FAST_TIME_MS 206 private static final String FAIL_FAST_TIME_MS = 207 "persist.radio.fail_fast_time_ms"; 208 209 private static final String ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED = 210 "android.net.ConnectivityService.action.PKT_CNT_SAMPLE_INTERVAL_ELAPSED"; 211 212 private static final int SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE = 0; 213 214 private PendingIntent mSampleIntervalElapsedIntent; 215 216 // Set network sampling interval at 12 minutes, this way, even if the timers get 217 // aggregated, it will fire at around 15 minutes, which should allow us to 218 // aggregate this timer with other timers (specially the socket keep alive timers) 219 private static final int DEFAULT_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 12 * 60); 220 221 // start network sampling a minute after booting ... 222 private static final int DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 60); 223 224 AlarmManager mAlarmManager; 225 226 private Tethering mTethering; 227 228 private KeyStore mKeyStore; 229 230 @GuardedBy("mVpns") 231 private final SparseArray<Vpn> mVpns = new SparseArray<Vpn>(); 232 233 private boolean mLockdownEnabled; 234 private LockdownVpnTracker mLockdownTracker; 235 236 private Nat464Xlat mClat; 237 238 /** Lock around {@link #mUidRules} and {@link #mMeteredIfaces}. */ 239 private Object mRulesLock = new Object(); 240 /** Currently active network rules by UID. */ 241 private SparseIntArray mUidRules = new SparseIntArray(); 242 /** Set of ifaces that are costly. */ 243 private HashSet<String> mMeteredIfaces = Sets.newHashSet(); 244 245 /** 246 * Sometimes we want to refer to the individual network state 247 * trackers separately, and sometimes we just want to treat them 248 * abstractly. 249 */ 250 private NetworkStateTracker mNetTrackers[]; 251 252 private Context mContext; 253 private int mNetworkPreference; 254 private int mActiveDefaultNetwork = -1; 255 // 0 is full bad, 100 is full good 256 private int mDefaultInetConditionPublished = 0; 257 258 private Object mDnsLock = new Object(); 259 private int mNumDnsEntries; 260 261 private boolean mTestMode; 262 private static ConnectivityService sServiceInstance; 263 264 private INetworkManagementService mNetd; 265 private INetworkPolicyManager mPolicyManager; 266 267 private static final int ENABLED = 1; 268 private static final int DISABLED = 0; 269 270 /** 271 * used internally to change our mobile data enabled flag 272 */ 273 private static final int EVENT_CHANGE_MOBILE_DATA_ENABLED = 2; 274 275 /** 276 * used internally to clear a wakelock when transitioning 277 * from one net to another. Clear happens when we get a new 278 * network - EVENT_EXPIRE_NET_TRANSITION_WAKELOCK happens 279 * after a timeout if no network is found (typically 1 min). 280 */ 281 private static final int EVENT_CLEAR_NET_TRANSITION_WAKELOCK = 8; 282 283 /** 284 * used internally to reload global proxy settings 285 */ 286 private static final int EVENT_APPLY_GLOBAL_HTTP_PROXY = 9; 287 288 /** 289 * used internally to set external dependency met/unmet 290 * arg1 = ENABLED (met) or DISABLED (unmet) 291 * arg2 = NetworkType 292 */ 293 private static final int EVENT_SET_DEPENDENCY_MET = 10; 294 295 /** 296 * used internally to send a sticky broadcast delayed. 297 */ 298 private static final int EVENT_SEND_STICKY_BROADCAST_INTENT = 11; 299 300 /** 301 * Used internally to 302 * {@link NetworkStateTracker#setPolicyDataEnable(boolean)}. 303 */ 304 private static final int EVENT_SET_POLICY_DATA_ENABLE = 12; 305 306 /** 307 * Used internally to disable fail fast of mobile data 308 */ 309 private static final int EVENT_ENABLE_FAIL_FAST_MOBILE_DATA = 14; 310 311 /** 312 * used internally to indicate that data sampling interval is up 313 */ 314 private static final int EVENT_SAMPLE_INTERVAL_ELAPSED = 15; 315 316 /** 317 * PAC manager has received new port. 318 */ 319 private static final int EVENT_PROXY_HAS_CHANGED = 16; 320 321 /** 322 * used internally when registering NetworkFactories 323 * obj = NetworkFactoryInfo 324 */ 325 private static final int EVENT_REGISTER_NETWORK_FACTORY = 17; 326 327 /** 328 * used internally when registering NetworkAgents 329 * obj = Messenger 330 */ 331 private static final int EVENT_REGISTER_NETWORK_AGENT = 18; 332 333 /** 334 * used to add a network request 335 * includes a NetworkRequestInfo 336 */ 337 private static final int EVENT_REGISTER_NETWORK_REQUEST = 19; 338 339 /** 340 * indicates a timeout period is over - check if we had a network yet or not 341 * and if not, call the timeout calback (but leave the request live until they 342 * cancel it. 343 * includes a NetworkRequestInfo 344 */ 345 private static final int EVENT_TIMEOUT_NETWORK_REQUEST = 20; 346 347 /** 348 * used to add a network listener - no request 349 * includes a NetworkRequestInfo 350 */ 351 private static final int EVENT_REGISTER_NETWORK_LISTENER = 21; 352 353 /** 354 * used to remove a network request, either a listener or a real request 355 * arg1 = UID of caller 356 * obj = NetworkRequest 357 */ 358 private static final int EVENT_RELEASE_NETWORK_REQUEST = 22; 359 360 /** 361 * used internally when registering NetworkFactories 362 * obj = Messenger 363 */ 364 private static final int EVENT_UNREGISTER_NETWORK_FACTORY = 23; 365 366 /** 367 * used internally to expire a wakelock when transitioning 368 * from one net to another. Expire happens when we fail to find 369 * a new network (typically after 1 minute) - 370 * EVENT_CLEAR_NET_TRANSITION_WAKELOCK happens if we had found 371 * a replacement network. 372 */ 373 private static final int EVENT_EXPIRE_NET_TRANSITION_WAKELOCK = 24; 374 375 /** 376 * Used internally to indicate the system is ready. 377 */ 378 private static final int EVENT_SYSTEM_READY = 25; 379 380 381 /** Handler used for internal events. */ 382 final private InternalHandler mHandler; 383 /** Handler used for incoming {@link NetworkStateTracker} events. */ 384 final private NetworkStateTrackerHandler mTrackerHandler; 385 386 private boolean mSystemReady; 387 private Intent mInitialBroadcast; 388 389 private PowerManager.WakeLock mNetTransitionWakeLock; 390 private String mNetTransitionWakeLockCausedBy = ""; 391 private int mNetTransitionWakeLockSerialNumber; 392 private int mNetTransitionWakeLockTimeout; 393 394 private InetAddress mDefaultDns; 395 396 // used in DBG mode to track inet condition reports 397 private static final int INET_CONDITION_LOG_MAX_SIZE = 15; 398 private ArrayList mInetLog; 399 400 // track the current default http proxy - tell the world if we get a new one (real change) 401 private ProxyInfo mDefaultProxy = null; 402 private Object mProxyLock = new Object(); 403 private boolean mDefaultProxyDisabled = false; 404 405 // track the global proxy. 406 private ProxyInfo mGlobalProxy = null; 407 408 private PacManager mPacManager = null; 409 410 private SettingsObserver mSettingsObserver; 411 412 private UserManager mUserManager; 413 414 NetworkConfig[] mNetConfigs; 415 int mNetworksDefined; 416 417 // the set of network types that can only be enabled by system/sig apps 418 List mProtectedNetworks; 419 420 private DataConnectionStats mDataConnectionStats; 421 422 private AtomicInteger mEnableFailFastMobileDataTag = new AtomicInteger(0); 423 424 TelephonyManager mTelephonyManager; 425 426 // sequence number for Networks 427 private final static int MIN_NET_ID = 10; // some reserved marks 428 private final static int MAX_NET_ID = 65535; 429 private int mNextNetId = MIN_NET_ID; 430 431 // sequence number of NetworkRequests 432 private int mNextNetworkRequestId = 1; 433 434 /** 435 * Implements support for the legacy "one network per network type" model. 436 * 437 * We used to have a static array of NetworkStateTrackers, one for each 438 * network type, but that doesn't work any more now that we can have, 439 * for example, more that one wifi network. This class stores all the 440 * NetworkAgentInfo objects that support a given type, but the legacy 441 * API will only see the first one. 442 * 443 * It serves two main purposes: 444 * 445 * 1. Provide information about "the network for a given type" (since this 446 * API only supports one). 447 * 2. Send legacy connectivity change broadcasts. Broadcasts are sent if 448 * the first network for a given type changes, or if the default network 449 * changes. 450 */ 451 private class LegacyTypeTracker { 452 453 private static final boolean DBG = true; 454 private static final boolean VDBG = false; 455 private static final String TAG = "CSLegacyTypeTracker"; 456 457 /** 458 * Array of lists, one per legacy network type (e.g., TYPE_MOBILE_MMS). 459 * Each list holds references to all NetworkAgentInfos that are used to 460 * satisfy requests for that network type. 461 * 462 * This array is built out at startup such that an unsupported network 463 * doesn't get an ArrayList instance, making this a tristate: 464 * unsupported, supported but not active and active. 465 * 466 * The actual lists are populated when we scan the network types that 467 * are supported on this device. 468 */ 469 private ArrayList<NetworkAgentInfo> mTypeLists[]; 470 471 public LegacyTypeTracker() { 472 mTypeLists = (ArrayList<NetworkAgentInfo>[]) 473 new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE + 1]; 474 } 475 476 public void addSupportedType(int type) { 477 if (mTypeLists[type] != null) { 478 throw new IllegalStateException( 479 "legacy list for type " + type + "already initialized"); 480 } 481 mTypeLists[type] = new ArrayList<NetworkAgentInfo>(); 482 } 483 484 public boolean isTypeSupported(int type) { 485 return isNetworkTypeValid(type) && mTypeLists[type] != null; 486 } 487 488 public NetworkAgentInfo getNetworkForType(int type) { 489 if (isTypeSupported(type) && !mTypeLists[type].isEmpty()) { 490 return mTypeLists[type].get(0); 491 } else { 492 return null; 493 } 494 } 495 496 private void maybeLogBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 497 if (DBG) { 498 log("Sending " + (connected ? "connected" : "disconnected") + 499 " broadcast for type " + type + " " + nai.name() + 500 " isDefaultNetwork=" + isDefaultNetwork(nai)); 501 } 502 } 503 504 /** Adds the given network to the specified legacy type list. */ 505 public void add(int type, NetworkAgentInfo nai) { 506 if (!isTypeSupported(type)) { 507 return; // Invalid network type. 508 } 509 if (VDBG) log("Adding agent " + nai + " for legacy network type " + type); 510 511 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 512 if (list.contains(nai)) { 513 loge("Attempting to register duplicate agent for type " + type + ": " + nai); 514 return; 515 } 516 517 if (list.isEmpty() || isDefaultNetwork(nai)) { 518 maybeLogBroadcast(nai, true, type); 519 sendLegacyNetworkBroadcast(nai, true, type); 520 } 521 list.add(nai); 522 } 523 524 /** Removes the given network from the specified legacy type list. */ 525 public void remove(int type, NetworkAgentInfo nai) { 526 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 527 if (list == null || list.isEmpty()) { 528 return; 529 } 530 531 boolean wasFirstNetwork = list.get(0).equals(nai); 532 533 if (!list.remove(nai)) { 534 return; 535 } 536 537 if (wasFirstNetwork || isDefaultNetwork(nai)) { 538 maybeLogBroadcast(nai, false, type); 539 sendLegacyNetworkBroadcast(nai, false, type); 540 } 541 542 if (!list.isEmpty() && wasFirstNetwork) { 543 if (DBG) log("Other network available for type " + type + 544 ", sending connected broadcast"); 545 maybeLogBroadcast(list.get(0), false, type); 546 sendLegacyNetworkBroadcast(list.get(0), false, type); 547 } 548 } 549 550 /** Removes the given network from all legacy type lists. */ 551 public void remove(NetworkAgentInfo nai) { 552 if (VDBG) log("Removing agent " + nai); 553 for (int type = 0; type < mTypeLists.length; type++) { 554 remove(type, nai); 555 } 556 } 557 558 private String naiToString(NetworkAgentInfo nai) { 559 String name = (nai != null) ? nai.name() : "null"; 560 String state = (nai.networkInfo != null) ? 561 nai.networkInfo.getState() + "/" + nai.networkInfo.getDetailedState() : 562 "???/???"; 563 return name + " " + state; 564 } 565 566 public void dump(IndentingPrintWriter pw) { 567 for (int type = 0; type < mTypeLists.length; type++) { 568 if (mTypeLists[type] == null) continue; 569 pw.print(type + " "); 570 pw.increaseIndent(); 571 if (mTypeLists[type].size() == 0) pw.println("none"); 572 for (NetworkAgentInfo nai : mTypeLists[type]) { 573 pw.println(naiToString(nai)); 574 } 575 pw.decreaseIndent(); 576 } 577 } 578 579 // This class needs its own log method because it has a different TAG. 580 private void log(String s) { 581 Slog.d(TAG, s); 582 } 583 584 } 585 private LegacyTypeTracker mLegacyTypeTracker = new LegacyTypeTracker(); 586 587 public ConnectivityService(Context context, INetworkManagementService netManager, 588 INetworkStatsService statsService, INetworkPolicyManager policyManager) { 589 if (DBG) log("ConnectivityService starting up"); 590 591 NetworkCapabilities netCap = new NetworkCapabilities(); 592 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 593 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 594 mDefaultRequest = new NetworkRequest(netCap, TYPE_NONE, nextNetworkRequestId()); 595 NetworkRequestInfo nri = new NetworkRequestInfo(null, mDefaultRequest, new Binder(), 596 NetworkRequestInfo.REQUEST); 597 mNetworkRequests.put(mDefaultRequest, nri); 598 599 HandlerThread handlerThread = new HandlerThread("ConnectivityServiceThread"); 600 handlerThread.start(); 601 mHandler = new InternalHandler(handlerThread.getLooper()); 602 mTrackerHandler = new NetworkStateTrackerHandler(handlerThread.getLooper()); 603 604 // setup our unique device name 605 if (TextUtils.isEmpty(SystemProperties.get("net.hostname"))) { 606 String id = Settings.Secure.getString(context.getContentResolver(), 607 Settings.Secure.ANDROID_ID); 608 if (id != null && id.length() > 0) { 609 String name = new String("android-").concat(id); 610 SystemProperties.set("net.hostname", name); 611 } 612 } 613 614 // read our default dns server ip 615 String dns = Settings.Global.getString(context.getContentResolver(), 616 Settings.Global.DEFAULT_DNS_SERVER); 617 if (dns == null || dns.length() == 0) { 618 dns = context.getResources().getString( 619 com.android.internal.R.string.config_default_dns_server); 620 } 621 try { 622 mDefaultDns = NetworkUtils.numericToInetAddress(dns); 623 } catch (IllegalArgumentException e) { 624 loge("Error setting defaultDns using " + dns); 625 } 626 627 mContext = checkNotNull(context, "missing Context"); 628 mNetd = checkNotNull(netManager, "missing INetworkManagementService"); 629 mPolicyManager = checkNotNull(policyManager, "missing INetworkPolicyManager"); 630 mKeyStore = KeyStore.getInstance(); 631 mTelephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 632 633 try { 634 mPolicyManager.registerListener(mPolicyListener); 635 } catch (RemoteException e) { 636 // ouch, no rules updates means some processes may never get network 637 loge("unable to register INetworkPolicyListener" + e.toString()); 638 } 639 640 final PowerManager powerManager = (PowerManager) context.getSystemService( 641 Context.POWER_SERVICE); 642 mNetTransitionWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); 643 mNetTransitionWakeLockTimeout = mContext.getResources().getInteger( 644 com.android.internal.R.integer.config_networkTransitionTimeout); 645 646 mNetTrackers = new NetworkStateTracker[ 647 ConnectivityManager.MAX_NETWORK_TYPE+1]; 648 649 mNetConfigs = new NetworkConfig[ConnectivityManager.MAX_NETWORK_TYPE+1]; 650 651 // TODO: What is the "correct" way to do determine if this is a wifi only device? 652 boolean wifiOnly = SystemProperties.getBoolean("ro.radio.noril", false); 653 log("wifiOnly=" + wifiOnly); 654 String[] naStrings = context.getResources().getStringArray( 655 com.android.internal.R.array.networkAttributes); 656 for (String naString : naStrings) { 657 try { 658 NetworkConfig n = new NetworkConfig(naString); 659 if (VDBG) log("naString=" + naString + " config=" + n); 660 if (n.type > ConnectivityManager.MAX_NETWORK_TYPE) { 661 loge("Error in networkAttributes - ignoring attempt to define type " + 662 n.type); 663 continue; 664 } 665 if (wifiOnly && ConnectivityManager.isNetworkTypeMobile(n.type)) { 666 log("networkAttributes - ignoring mobile as this dev is wifiOnly " + 667 n.type); 668 continue; 669 } 670 if (mNetConfigs[n.type] != null) { 671 loge("Error in networkAttributes - ignoring attempt to redefine type " + 672 n.type); 673 continue; 674 } 675 mLegacyTypeTracker.addSupportedType(n.type); 676 677 mNetConfigs[n.type] = n; 678 mNetworksDefined++; 679 } catch(Exception e) { 680 // ignore it - leave the entry null 681 } 682 } 683 if (VDBG) log("mNetworksDefined=" + mNetworksDefined); 684 685 mProtectedNetworks = new ArrayList<Integer>(); 686 int[] protectedNetworks = context.getResources().getIntArray( 687 com.android.internal.R.array.config_protectedNetworks); 688 for (int p : protectedNetworks) { 689 if ((mNetConfigs[p] != null) && (mProtectedNetworks.contains(p) == false)) { 690 mProtectedNetworks.add(p); 691 } else { 692 if (DBG) loge("Ignoring protectedNetwork " + p); 693 } 694 } 695 696 mTestMode = SystemProperties.get("cm.test.mode").equals("true") 697 && SystemProperties.get("ro.build.type").equals("eng"); 698 699 mTethering = new Tethering(mContext, mNetd, statsService, mHandler.getLooper()); 700 701 //set up the listener for user state for creating user VPNs 702 IntentFilter intentFilter = new IntentFilter(); 703 intentFilter.addAction(Intent.ACTION_USER_STARTING); 704 intentFilter.addAction(Intent.ACTION_USER_STOPPING); 705 mContext.registerReceiverAsUser( 706 mUserIntentReceiver, UserHandle.ALL, intentFilter, null, null); 707 mClat = new Nat464Xlat(mContext, mNetd, this, mTrackerHandler); 708 709 try { 710 mNetd.registerObserver(mTethering); 711 mNetd.registerObserver(mDataActivityObserver); 712 mNetd.registerObserver(mClat); 713 } catch (RemoteException e) { 714 loge("Error registering observer :" + e); 715 } 716 717 if (DBG) { 718 mInetLog = new ArrayList(); 719 } 720 721 mSettingsObserver = new SettingsObserver(mHandler, EVENT_APPLY_GLOBAL_HTTP_PROXY); 722 mSettingsObserver.observe(mContext); 723 724 mDataConnectionStats = new DataConnectionStats(mContext); 725 mDataConnectionStats.startMonitoring(); 726 727 mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE); 728 729 IntentFilter filter = new IntentFilter(); 730 filter.addAction(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 731 mContext.registerReceiver( 732 new BroadcastReceiver() { 733 @Override 734 public void onReceive(Context context, Intent intent) { 735 String action = intent.getAction(); 736 if (action.equals(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED)) { 737 mHandler.sendMessage(mHandler.obtainMessage 738 (EVENT_SAMPLE_INTERVAL_ELAPSED)); 739 } 740 } 741 }, 742 new IntentFilter(filter)); 743 744 mPacManager = new PacManager(mContext, mHandler, EVENT_PROXY_HAS_CHANGED); 745 746 filter = new IntentFilter(); 747 filter.addAction(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 748 mContext.registerReceiver(mProvisioningReceiver, filter); 749 750 mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); 751 } 752 753 private synchronized int nextNetworkRequestId() { 754 return mNextNetworkRequestId++; 755 } 756 757 private synchronized int nextNetId() { 758 int netId = mNextNetId; 759 if (++mNextNetId > MAX_NET_ID) mNextNetId = MIN_NET_ID; 760 return netId; 761 } 762 763 private int getConnectivityChangeDelay() { 764 final ContentResolver cr = mContext.getContentResolver(); 765 766 /** Check system properties for the default value then use secure settings value, if any. */ 767 int defaultDelay = SystemProperties.getInt( 768 "conn." + Settings.Global.CONNECTIVITY_CHANGE_DELAY, 769 ConnectivityManager.CONNECTIVITY_CHANGE_DELAY_DEFAULT); 770 return Settings.Global.getInt(cr, Settings.Global.CONNECTIVITY_CHANGE_DELAY, 771 defaultDelay); 772 } 773 774 private boolean teardown(NetworkStateTracker netTracker) { 775 if (netTracker.teardown()) { 776 netTracker.setTeardownRequested(true); 777 return true; 778 } else { 779 return false; 780 } 781 } 782 783 /** 784 * Check if UID should be blocked from using the network represented by the 785 * given {@link NetworkStateTracker}. 786 */ 787 private boolean isNetworkBlocked(int networkType, int uid) { 788 final boolean networkCostly; 789 final int uidRules; 790 791 LinkProperties lp = getLinkPropertiesForType(networkType); 792 final String iface = (lp == null ? "" : lp.getInterfaceName()); 793 synchronized (mRulesLock) { 794 networkCostly = mMeteredIfaces.contains(iface); 795 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 796 } 797 798 if (networkCostly && (uidRules & RULE_REJECT_METERED) != 0) { 799 return true; 800 } 801 802 // no restrictive rules; network is visible 803 return false; 804 } 805 806 /** 807 * Return a filtered {@link NetworkInfo}, potentially marked 808 * {@link DetailedState#BLOCKED} based on 809 * {@link #isNetworkBlocked}. 810 */ 811 private NetworkInfo getFilteredNetworkInfo(int networkType, int uid) { 812 NetworkInfo info = getNetworkInfoForType(networkType); 813 return getFilteredNetworkInfo(info, networkType, uid); 814 } 815 816 private NetworkInfo getFilteredNetworkInfo(NetworkInfo info, int networkType, int uid) { 817 if (isNetworkBlocked(networkType, uid)) { 818 // network is blocked; clone and override state 819 info = new NetworkInfo(info); 820 info.setDetailedState(DetailedState.BLOCKED, null, null); 821 if (VDBG) log("returning Blocked NetworkInfo"); 822 } 823 if (mLockdownTracker != null) { 824 info = mLockdownTracker.augmentNetworkInfo(info); 825 if (VDBG) log("returning Locked NetworkInfo"); 826 } 827 return info; 828 } 829 830 /** 831 * Return NetworkInfo for the active (i.e., connected) network interface. 832 * It is assumed that at most one network is active at a time. If more 833 * than one is active, it is indeterminate which will be returned. 834 * @return the info for the active network, or {@code null} if none is 835 * active 836 */ 837 @Override 838 public NetworkInfo getActiveNetworkInfo() { 839 enforceAccessPermission(); 840 final int uid = Binder.getCallingUid(); 841 return getNetworkInfo(mActiveDefaultNetwork, uid); 842 } 843 844 // only called when the default request is satisfied 845 private void updateActiveDefaultNetwork(NetworkAgentInfo nai) { 846 if (nai != null) { 847 mActiveDefaultNetwork = nai.networkInfo.getType(); 848 } else { 849 mActiveDefaultNetwork = TYPE_NONE; 850 } 851 } 852 853 /** 854 * Find the first Provisioning network. 855 * 856 * @return NetworkInfo or null if none. 857 */ 858 private NetworkInfo getProvisioningNetworkInfo() { 859 enforceAccessPermission(); 860 861 // Find the first Provisioning Network 862 NetworkInfo provNi = null; 863 for (NetworkInfo ni : getAllNetworkInfo()) { 864 if (ni.isConnectedToProvisioningNetwork()) { 865 provNi = ni; 866 break; 867 } 868 } 869 if (DBG) log("getProvisioningNetworkInfo: X provNi=" + provNi); 870 return provNi; 871 } 872 873 /** 874 * Find the first Provisioning network or the ActiveDefaultNetwork 875 * if there is no Provisioning network 876 * 877 * @return NetworkInfo or null if none. 878 */ 879 @Override 880 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 881 enforceAccessPermission(); 882 883 NetworkInfo provNi = getProvisioningNetworkInfo(); 884 if (provNi == null) { 885 final int uid = Binder.getCallingUid(); 886 provNi = getNetworkInfo(mActiveDefaultNetwork, uid); 887 } 888 if (DBG) log("getProvisioningOrActiveNetworkInfo: X provNi=" + provNi); 889 return provNi; 890 } 891 892 public NetworkInfo getActiveNetworkInfoUnfiltered() { 893 enforceAccessPermission(); 894 if (isNetworkTypeValid(mActiveDefaultNetwork)) { 895 return getNetworkInfoForType(mActiveDefaultNetwork); 896 } 897 return null; 898 } 899 900 @Override 901 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 902 enforceConnectivityInternalPermission(); 903 return getNetworkInfo(mActiveDefaultNetwork, uid); 904 } 905 906 @Override 907 public NetworkInfo getNetworkInfo(int networkType) { 908 enforceAccessPermission(); 909 final int uid = Binder.getCallingUid(); 910 return getNetworkInfo(networkType, uid); 911 } 912 913 private NetworkInfo getNetworkInfo(int networkType, int uid) { 914 NetworkInfo info = null; 915 if (isNetworkTypeValid(networkType)) { 916 if (getNetworkInfoForType(networkType) != null) { 917 info = getFilteredNetworkInfo(networkType, uid); 918 } 919 } 920 return info; 921 } 922 923 @Override 924 public NetworkInfo getNetworkInfoForNetwork(Network network) { 925 enforceAccessPermission(); 926 if (network == null) return null; 927 928 final int uid = Binder.getCallingUid(); 929 NetworkAgentInfo nai = null; 930 synchronized (mNetworkForNetId) { 931 nai = mNetworkForNetId.get(network.netId); 932 } 933 if (nai == null) return null; 934 synchronized (nai) { 935 if (nai.networkInfo == null) return null; 936 937 return getFilteredNetworkInfo(nai.networkInfo, nai.networkInfo.getType(), uid); 938 } 939 } 940 941 @Override 942 public NetworkInfo[] getAllNetworkInfo() { 943 enforceAccessPermission(); 944 final int uid = Binder.getCallingUid(); 945 final ArrayList<NetworkInfo> result = Lists.newArrayList(); 946 synchronized (mRulesLock) { 947 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 948 networkType++) { 949 if (getNetworkInfoForType(networkType) != null) { 950 result.add(getFilteredNetworkInfo(networkType, uid)); 951 } 952 } 953 } 954 return result.toArray(new NetworkInfo[result.size()]); 955 } 956 957 @Override 958 public Network[] getAllNetworks() { 959 enforceAccessPermission(); 960 final ArrayList<Network> result = new ArrayList(); 961 synchronized (mNetworkForNetId) { 962 for (int i = 0; i < mNetworkForNetId.size(); i++) { 963 result.add(new Network(mNetworkForNetId.valueAt(i).network)); 964 } 965 } 966 return result.toArray(new Network[result.size()]); 967 } 968 969 @Override 970 public boolean isNetworkSupported(int networkType) { 971 enforceAccessPermission(); 972 return (isNetworkTypeValid(networkType) && (getNetworkInfoForType(networkType) != null)); 973 } 974 975 /** 976 * Return LinkProperties for the active (i.e., connected) default 977 * network interface. It is assumed that at most one default network 978 * is active at a time. If more than one is active, it is indeterminate 979 * which will be returned. 980 * @return the ip properties for the active network, or {@code null} if 981 * none is active 982 */ 983 @Override 984 public LinkProperties getActiveLinkProperties() { 985 return getLinkPropertiesForType(mActiveDefaultNetwork); 986 } 987 988 @Override 989 public LinkProperties getLinkPropertiesForType(int networkType) { 990 enforceAccessPermission(); 991 if (isNetworkTypeValid(networkType)) { 992 return getLinkPropertiesForTypeInternal(networkType); 993 } 994 return null; 995 } 996 997 // TODO - this should be ALL networks 998 @Override 999 public LinkProperties getLinkProperties(Network network) { 1000 enforceAccessPermission(); 1001 NetworkAgentInfo nai = null; 1002 synchronized (mNetworkForNetId) { 1003 nai = mNetworkForNetId.get(network.netId); 1004 } 1005 1006 if (nai != null) { 1007 synchronized (nai) { 1008 return new LinkProperties(nai.linkProperties); 1009 } 1010 } 1011 return null; 1012 } 1013 1014 @Override 1015 public NetworkCapabilities getNetworkCapabilities(Network network) { 1016 enforceAccessPermission(); 1017 NetworkAgentInfo nai = null; 1018 synchronized (mNetworkForNetId) { 1019 nai = mNetworkForNetId.get(network.netId); 1020 } 1021 if (nai != null) { 1022 synchronized (nai) { 1023 return new NetworkCapabilities(nai.networkCapabilities); 1024 } 1025 } 1026 return null; 1027 } 1028 1029 @Override 1030 public NetworkState[] getAllNetworkState() { 1031 enforceAccessPermission(); 1032 final int uid = Binder.getCallingUid(); 1033 final ArrayList<NetworkState> result = Lists.newArrayList(); 1034 synchronized (mRulesLock) { 1035 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1036 networkType++) { 1037 if (getNetworkInfoForType(networkType) != null) { 1038 final NetworkInfo info = getFilteredNetworkInfo(networkType, uid); 1039 final LinkProperties lp = getLinkPropertiesForTypeInternal(networkType); 1040 final NetworkCapabilities netcap = getNetworkCapabilitiesForType(networkType); 1041 result.add(new NetworkState(info, lp, netcap)); 1042 } 1043 } 1044 } 1045 return result.toArray(new NetworkState[result.size()]); 1046 } 1047 1048 private NetworkState getNetworkStateUnchecked(int networkType) { 1049 if (isNetworkTypeValid(networkType)) { 1050 NetworkInfo info = getNetworkInfoForType(networkType); 1051 if (info != null) { 1052 return new NetworkState(info, 1053 getLinkPropertiesForTypeInternal(networkType), 1054 getNetworkCapabilitiesForType(networkType)); 1055 } 1056 } 1057 return null; 1058 } 1059 1060 @Override 1061 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1062 enforceAccessPermission(); 1063 1064 final long token = Binder.clearCallingIdentity(); 1065 try { 1066 final NetworkState state = getNetworkStateUnchecked(mActiveDefaultNetwork); 1067 if (state != null) { 1068 try { 1069 return mPolicyManager.getNetworkQuotaInfo(state); 1070 } catch (RemoteException e) { 1071 } 1072 } 1073 return null; 1074 } finally { 1075 Binder.restoreCallingIdentity(token); 1076 } 1077 } 1078 1079 @Override 1080 public boolean isActiveNetworkMetered() { 1081 enforceAccessPermission(); 1082 final long token = Binder.clearCallingIdentity(); 1083 try { 1084 return isNetworkMeteredUnchecked(mActiveDefaultNetwork); 1085 } finally { 1086 Binder.restoreCallingIdentity(token); 1087 } 1088 } 1089 1090 private boolean isNetworkMeteredUnchecked(int networkType) { 1091 final NetworkState state = getNetworkStateUnchecked(networkType); 1092 if (state != null) { 1093 try { 1094 return mPolicyManager.isNetworkMetered(state); 1095 } catch (RemoteException e) { 1096 } 1097 } 1098 return false; 1099 } 1100 1101 private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { 1102 @Override 1103 public void interfaceClassDataActivityChanged(String label, boolean active, long tsNanos) { 1104 int deviceType = Integer.parseInt(label); 1105 sendDataActivityBroadcast(deviceType, active, tsNanos); 1106 } 1107 }; 1108 1109 /** 1110 * Ensure that a network route exists to deliver traffic to the specified 1111 * host via the specified network interface. 1112 * @param networkType the type of the network over which traffic to the 1113 * specified host is to be routed 1114 * @param hostAddress the IP address of the host to which the route is 1115 * desired 1116 * @return {@code true} on success, {@code false} on failure 1117 */ 1118 public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress) { 1119 enforceChangePermission(); 1120 if (mProtectedNetworks.contains(networkType)) { 1121 enforceConnectivityInternalPermission(); 1122 } 1123 1124 InetAddress addr; 1125 try { 1126 addr = InetAddress.getByAddress(hostAddress); 1127 } catch (UnknownHostException e) { 1128 if (DBG) log("requestRouteToHostAddress got " + e.toString()); 1129 return false; 1130 } 1131 1132 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1133 if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); 1134 return false; 1135 } 1136 1137 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1138 if (nai == null) { 1139 if (mLegacyTypeTracker.isTypeSupported(networkType) == false) { 1140 if (DBG) log("requestRouteToHostAddress on unsupported network: " + networkType); 1141 } else { 1142 if (DBG) log("requestRouteToHostAddress on down network: " + networkType); 1143 } 1144 return false; 1145 } 1146 1147 DetailedState netState; 1148 synchronized (nai) { 1149 netState = nai.networkInfo.getDetailedState(); 1150 } 1151 1152 if (netState != DetailedState.CONNECTED && netState != DetailedState.CAPTIVE_PORTAL_CHECK) { 1153 if (VDBG) { 1154 log("requestRouteToHostAddress on down network " 1155 + "(" + networkType + ") - dropped" 1156 + " netState=" + netState); 1157 } 1158 return false; 1159 } 1160 1161 final int uid = Binder.getCallingUid(); 1162 final long token = Binder.clearCallingIdentity(); 1163 try { 1164 LinkProperties lp; 1165 int netId; 1166 synchronized (nai) { 1167 lp = nai.linkProperties; 1168 netId = nai.network.netId; 1169 } 1170 boolean ok = addLegacyRouteToHost(lp, addr, netId, uid); 1171 if (DBG) log("requestRouteToHostAddress ok=" + ok); 1172 return ok; 1173 } finally { 1174 Binder.restoreCallingIdentity(token); 1175 } 1176 } 1177 1178 private boolean addLegacyRouteToHost(LinkProperties lp, InetAddress addr, int netId, int uid) { 1179 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), addr); 1180 if (bestRoute == null) { 1181 bestRoute = RouteInfo.makeHostRoute(addr, lp.getInterfaceName()); 1182 } else { 1183 String iface = bestRoute.getInterface(); 1184 if (bestRoute.getGateway().equals(addr)) { 1185 // if there is no better route, add the implied hostroute for our gateway 1186 bestRoute = RouteInfo.makeHostRoute(addr, iface); 1187 } else { 1188 // if we will connect to this through another route, add a direct route 1189 // to it's gateway 1190 bestRoute = RouteInfo.makeHostRoute(addr, bestRoute.getGateway(), iface); 1191 } 1192 } 1193 if (VDBG) log("Adding " + bestRoute + " for interface " + bestRoute.getInterface()); 1194 try { 1195 mNetd.addLegacyRouteForNetId(netId, bestRoute, uid); 1196 } catch (Exception e) { 1197 // never crash - catch them all 1198 if (DBG) loge("Exception trying to add a route: " + e); 1199 return false; 1200 } 1201 return true; 1202 } 1203 1204 public void setDataDependency(int networkType, boolean met) { 1205 enforceConnectivityInternalPermission(); 1206 1207 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_DEPENDENCY_MET, 1208 (met ? ENABLED : DISABLED), networkType)); 1209 } 1210 1211 private void handleSetDependencyMet(int networkType, boolean met) { 1212 if (mNetTrackers[networkType] != null) { 1213 if (DBG) { 1214 log("handleSetDependencyMet(" + networkType + ", " + met + ")"); 1215 } 1216 mNetTrackers[networkType].setDependencyMet(met); 1217 } 1218 } 1219 1220 private INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() { 1221 @Override 1222 public void onUidRulesChanged(int uid, int uidRules) { 1223 // caller is NPMS, since we only register with them 1224 if (LOGD_RULES) { 1225 log("onUidRulesChanged(uid=" + uid + ", uidRules=" + uidRules + ")"); 1226 } 1227 1228 synchronized (mRulesLock) { 1229 // skip update when we've already applied rules 1230 final int oldRules = mUidRules.get(uid, RULE_ALLOW_ALL); 1231 if (oldRules == uidRules) return; 1232 1233 mUidRules.put(uid, uidRules); 1234 } 1235 1236 // TODO: notify UID when it has requested targeted updates 1237 } 1238 1239 @Override 1240 public void onMeteredIfacesChanged(String[] meteredIfaces) { 1241 // caller is NPMS, since we only register with them 1242 if (LOGD_RULES) { 1243 log("onMeteredIfacesChanged(ifaces=" + Arrays.toString(meteredIfaces) + ")"); 1244 } 1245 1246 synchronized (mRulesLock) { 1247 mMeteredIfaces.clear(); 1248 for (String iface : meteredIfaces) { 1249 mMeteredIfaces.add(iface); 1250 } 1251 } 1252 } 1253 1254 @Override 1255 public void onRestrictBackgroundChanged(boolean restrictBackground) { 1256 // caller is NPMS, since we only register with them 1257 if (LOGD_RULES) { 1258 log("onRestrictBackgroundChanged(restrictBackground=" + restrictBackground + ")"); 1259 } 1260 1261 // kick off connectivity change broadcast for active network, since 1262 // global background policy change is radical. 1263 final int networkType = mActiveDefaultNetwork; 1264 if (isNetworkTypeValid(networkType)) { 1265 final NetworkStateTracker tracker = mNetTrackers[networkType]; 1266 if (tracker != null) { 1267 final NetworkInfo info = tracker.getNetworkInfo(); 1268 if (info != null && info.isConnected()) { 1269 sendConnectedBroadcast(info); 1270 } 1271 } 1272 } 1273 } 1274 }; 1275 1276 @Override 1277 public void setPolicyDataEnable(int networkType, boolean enabled) { 1278 // only someone like NPMS should only be calling us 1279 mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); 1280 1281 mHandler.sendMessage(mHandler.obtainMessage( 1282 EVENT_SET_POLICY_DATA_ENABLE, networkType, (enabled ? ENABLED : DISABLED))); 1283 } 1284 1285 private void handleSetPolicyDataEnable(int networkType, boolean enabled) { 1286 // TODO - handle this passing to factories 1287// if (isNetworkTypeValid(networkType)) { 1288// final NetworkStateTracker tracker = mNetTrackers[networkType]; 1289// if (tracker != null) { 1290// tracker.setPolicyDataEnable(enabled); 1291// } 1292// } 1293 } 1294 1295 private void enforceAccessPermission() { 1296 mContext.enforceCallingOrSelfPermission( 1297 android.Manifest.permission.ACCESS_NETWORK_STATE, 1298 "ConnectivityService"); 1299 } 1300 1301 private void enforceChangePermission() { 1302 mContext.enforceCallingOrSelfPermission( 1303 android.Manifest.permission.CHANGE_NETWORK_STATE, 1304 "ConnectivityService"); 1305 } 1306 1307 // TODO Make this a special check when it goes public 1308 private void enforceTetherChangePermission() { 1309 mContext.enforceCallingOrSelfPermission( 1310 android.Manifest.permission.CHANGE_NETWORK_STATE, 1311 "ConnectivityService"); 1312 } 1313 1314 private void enforceTetherAccessPermission() { 1315 mContext.enforceCallingOrSelfPermission( 1316 android.Manifest.permission.ACCESS_NETWORK_STATE, 1317 "ConnectivityService"); 1318 } 1319 1320 private void enforceConnectivityInternalPermission() { 1321 mContext.enforceCallingOrSelfPermission( 1322 android.Manifest.permission.CONNECTIVITY_INTERNAL, 1323 "ConnectivityService"); 1324 } 1325 1326 public void sendConnectedBroadcast(NetworkInfo info) { 1327 enforceConnectivityInternalPermission(); 1328 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1329 sendGeneralBroadcast(info, CONNECTIVITY_ACTION); 1330 } 1331 1332 private void sendConnectedBroadcastDelayed(NetworkInfo info, int delayMs) { 1333 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1334 sendGeneralBroadcastDelayed(info, CONNECTIVITY_ACTION, delayMs); 1335 } 1336 1337 private void sendInetConditionBroadcast(NetworkInfo info) { 1338 sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION); 1339 } 1340 1341 private Intent makeGeneralIntent(NetworkInfo info, String bcastType) { 1342 if (mLockdownTracker != null) { 1343 info = mLockdownTracker.augmentNetworkInfo(info); 1344 } 1345 1346 Intent intent = new Intent(bcastType); 1347 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 1348 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 1349 if (info.isFailover()) { 1350 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 1351 info.setFailover(false); 1352 } 1353 if (info.getReason() != null) { 1354 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 1355 } 1356 if (info.getExtraInfo() != null) { 1357 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 1358 info.getExtraInfo()); 1359 } 1360 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 1361 return intent; 1362 } 1363 1364 private void sendGeneralBroadcast(NetworkInfo info, String bcastType) { 1365 sendStickyBroadcast(makeGeneralIntent(info, bcastType)); 1366 } 1367 1368 private void sendGeneralBroadcastDelayed(NetworkInfo info, String bcastType, int delayMs) { 1369 sendStickyBroadcastDelayed(makeGeneralIntent(info, bcastType), delayMs); 1370 } 1371 1372 private void sendDataActivityBroadcast(int deviceType, boolean active, long tsNanos) { 1373 Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); 1374 intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); 1375 intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); 1376 intent.putExtra(ConnectivityManager.EXTRA_REALTIME_NS, tsNanos); 1377 final long ident = Binder.clearCallingIdentity(); 1378 try { 1379 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, 1380 RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); 1381 } finally { 1382 Binder.restoreCallingIdentity(ident); 1383 } 1384 } 1385 1386 private void sendStickyBroadcast(Intent intent) { 1387 synchronized(this) { 1388 if (!mSystemReady) { 1389 mInitialBroadcast = new Intent(intent); 1390 } 1391 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1392 if (VDBG) { 1393 log("sendStickyBroadcast: action=" + intent.getAction()); 1394 } 1395 1396 final long ident = Binder.clearCallingIdentity(); 1397 try { 1398 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1399 } finally { 1400 Binder.restoreCallingIdentity(ident); 1401 } 1402 } 1403 } 1404 1405 private void sendStickyBroadcastDelayed(Intent intent, int delayMs) { 1406 if (delayMs <= 0) { 1407 sendStickyBroadcast(intent); 1408 } else { 1409 if (VDBG) { 1410 log("sendStickyBroadcastDelayed: delayMs=" + delayMs + ", action=" 1411 + intent.getAction()); 1412 } 1413 mHandler.sendMessageDelayed(mHandler.obtainMessage( 1414 EVENT_SEND_STICKY_BROADCAST_INTENT, intent), delayMs); 1415 } 1416 } 1417 1418 void systemReady() { 1419 // start network sampling .. 1420 Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 1421 intent.setPackage(mContext.getPackageName()); 1422 1423 mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, 1424 SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); 1425 setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); 1426 1427 loadGlobalProxy(); 1428 1429 synchronized(this) { 1430 mSystemReady = true; 1431 if (mInitialBroadcast != null) { 1432 mContext.sendStickyBroadcastAsUser(mInitialBroadcast, UserHandle.ALL); 1433 mInitialBroadcast = null; 1434 } 1435 } 1436 // load the global proxy at startup 1437 mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY)); 1438 1439 // Try bringing up tracker, but if KeyStore isn't ready yet, wait 1440 // for user to unlock device. 1441 if (!updateLockdownVpn()) { 1442 final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_PRESENT); 1443 mContext.registerReceiver(mUserPresentReceiver, filter); 1444 } 1445 1446 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SYSTEM_READY)); 1447 } 1448 1449 private BroadcastReceiver mUserPresentReceiver = new BroadcastReceiver() { 1450 @Override 1451 public void onReceive(Context context, Intent intent) { 1452 // Try creating lockdown tracker, since user present usually means 1453 // unlocked keystore. 1454 if (updateLockdownVpn()) { 1455 mContext.unregisterReceiver(this); 1456 } 1457 } 1458 }; 1459 1460 /** @hide */ 1461 @Override 1462 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 1463 enforceConnectivityInternalPermission(); 1464 if (DBG) log("captivePortalCheckCompleted: ni=" + info + " captive=" + isCaptivePortal); 1465// mNetTrackers[info.getType()].captivePortalCheckCompleted(isCaptivePortal); 1466 } 1467 1468 /** 1469 * Setup data activity tracking for the given network. 1470 * 1471 * Every {@code setupDataActivityTracking} should be paired with a 1472 * {@link #removeDataActivityTracking} for cleanup. 1473 */ 1474 private void setupDataActivityTracking(NetworkAgentInfo networkAgent) { 1475 final String iface = networkAgent.linkProperties.getInterfaceName(); 1476 1477 final int timeout; 1478 int type = ConnectivityManager.TYPE_NONE; 1479 1480 if (networkAgent.networkCapabilities.hasTransport( 1481 NetworkCapabilities.TRANSPORT_CELLULAR)) { 1482 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1483 Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, 1484 5); 1485 type = ConnectivityManager.TYPE_MOBILE; 1486 } else if (networkAgent.networkCapabilities.hasTransport( 1487 NetworkCapabilities.TRANSPORT_WIFI)) { 1488 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1489 Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, 1490 0); 1491 type = ConnectivityManager.TYPE_WIFI; 1492 } else { 1493 // do not track any other networks 1494 timeout = 0; 1495 } 1496 1497 if (timeout > 0 && iface != null && type != ConnectivityManager.TYPE_NONE) { 1498 try { 1499 mNetd.addIdleTimer(iface, timeout, type); 1500 } catch (Exception e) { 1501 // You shall not crash! 1502 loge("Exception in setupDataActivityTracking " + e); 1503 } 1504 } 1505 } 1506 1507 /** 1508 * Remove data activity tracking when network disconnects. 1509 */ 1510 private void removeDataActivityTracking(NetworkAgentInfo networkAgent) { 1511 final String iface = networkAgent.linkProperties.getInterfaceName(); 1512 final NetworkCapabilities caps = networkAgent.networkCapabilities; 1513 1514 if (iface != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) || 1515 caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))) { 1516 try { 1517 // the call fails silently if no idletimer setup for this interface 1518 mNetd.removeIdleTimer(iface); 1519 } catch (Exception e) { 1520 loge("Exception in removeDataActivityTracking " + e); 1521 } 1522 } 1523 } 1524 1525 /** 1526 * Reads the network specific MTU size from reources. 1527 * and set it on it's iface. 1528 */ 1529 private void updateMtu(LinkProperties newLp, LinkProperties oldLp) { 1530 final String iface = newLp.getInterfaceName(); 1531 final int mtu = newLp.getMtu(); 1532 if (oldLp != null && newLp.isIdenticalMtu(oldLp)) { 1533 if (VDBG) log("identical MTU - not setting"); 1534 return; 1535 } 1536 1537 if (LinkProperties.isValidMtu(mtu, newLp.hasGlobalIPv6Address()) == false) { 1538 loge("Unexpected mtu value: " + mtu + ", " + iface); 1539 return; 1540 } 1541 1542 // Cannot set MTU without interface name 1543 if (TextUtils.isEmpty(iface)) { 1544 loge("Setting MTU size with null iface."); 1545 return; 1546 } 1547 1548 try { 1549 if (VDBG) log("Setting MTU size: " + iface + ", " + mtu); 1550 mNetd.setMtu(iface, mtu); 1551 } catch (Exception e) { 1552 Slog.e(TAG, "exception in setMtu()" + e); 1553 } 1554 } 1555 1556 /** 1557 * Reads the network specific TCP buffer sizes from SystemProperties 1558 * net.tcp.buffersize.[default|wifi|umts|edge|gprs] and set them for system 1559 * wide use 1560 */ 1561 private void updateNetworkSettings(NetworkStateTracker nt) { 1562 String key = nt.getTcpBufferSizesPropName(); 1563 String bufferSizes = key == null ? null : SystemProperties.get(key); 1564 1565 if (TextUtils.isEmpty(bufferSizes)) { 1566 if (VDBG) log(key + " not found in system properties. Using defaults"); 1567 1568 // Setting to default values so we won't be stuck to previous values 1569 key = "net.tcp.buffersize.default"; 1570 bufferSizes = SystemProperties.get(key); 1571 } 1572 1573 // Set values in kernel 1574 if (bufferSizes.length() != 0) { 1575 if (VDBG) { 1576 log("Setting TCP values: [" + bufferSizes 1577 + "] which comes from [" + key + "]"); 1578 } 1579 setBufferSize(bufferSizes); 1580 } 1581 1582 final String defaultRwndKey = "net.tcp.default_init_rwnd"; 1583 int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0); 1584 Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(), 1585 Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue); 1586 final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd"; 1587 if (rwndValue != 0) { 1588 SystemProperties.set(sysctlKey, rwndValue.toString()); 1589 } 1590 } 1591 1592 /** 1593 * Writes TCP buffer sizes to /sys/kernel/ipv4/tcp_[r/w]mem_[min/def/max] 1594 * which maps to /proc/sys/net/ipv4/tcp_rmem and tcpwmem 1595 * 1596 * @param bufferSizes in the format of "readMin, readInitial, readMax, 1597 * writeMin, writeInitial, writeMax" 1598 */ 1599 private void setBufferSize(String bufferSizes) { 1600 try { 1601 String[] values = bufferSizes.split(","); 1602 1603 if (values.length == 6) { 1604 final String prefix = "/sys/kernel/ipv4/tcp_"; 1605 FileUtils.stringToFile(prefix + "rmem_min", values[0]); 1606 FileUtils.stringToFile(prefix + "rmem_def", values[1]); 1607 FileUtils.stringToFile(prefix + "rmem_max", values[2]); 1608 FileUtils.stringToFile(prefix + "wmem_min", values[3]); 1609 FileUtils.stringToFile(prefix + "wmem_def", values[4]); 1610 FileUtils.stringToFile(prefix + "wmem_max", values[5]); 1611 } else { 1612 loge("Invalid buffersize string: " + bufferSizes); 1613 } 1614 } catch (IOException e) { 1615 loge("Can't set tcp buffer sizes:" + e); 1616 } 1617 } 1618 1619 private void flushVmDnsCache() { 1620 /* 1621 * Tell the VMs to toss their DNS caches 1622 */ 1623 Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE); 1624 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); 1625 /* 1626 * Connectivity events can happen before boot has completed ... 1627 */ 1628 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1629 final long ident = Binder.clearCallingIdentity(); 1630 try { 1631 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 1632 } finally { 1633 Binder.restoreCallingIdentity(ident); 1634 } 1635 } 1636 1637 @Override 1638 public int getRestoreDefaultNetworkDelay(int networkType) { 1639 String restoreDefaultNetworkDelayStr = SystemProperties.get( 1640 NETWORK_RESTORE_DELAY_PROP_NAME); 1641 if(restoreDefaultNetworkDelayStr != null && 1642 restoreDefaultNetworkDelayStr.length() != 0) { 1643 try { 1644 return Integer.valueOf(restoreDefaultNetworkDelayStr); 1645 } catch (NumberFormatException e) { 1646 } 1647 } 1648 // if the system property isn't set, use the value for the apn type 1649 int ret = RESTORE_DEFAULT_NETWORK_DELAY; 1650 1651 if ((networkType <= ConnectivityManager.MAX_NETWORK_TYPE) && 1652 (mNetConfigs[networkType] != null)) { 1653 ret = mNetConfigs[networkType].restoreTime; 1654 } 1655 return ret; 1656 } 1657 1658 @Override 1659 protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { 1660 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1661 if (mContext.checkCallingOrSelfPermission( 1662 android.Manifest.permission.DUMP) 1663 != PackageManager.PERMISSION_GRANTED) { 1664 pw.println("Permission Denial: can't dump ConnectivityService " + 1665 "from from pid=" + Binder.getCallingPid() + ", uid=" + 1666 Binder.getCallingUid()); 1667 return; 1668 } 1669 1670 pw.println("NetworkFactories for:"); 1671 pw.increaseIndent(); 1672 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 1673 pw.println(nfi.name); 1674 } 1675 pw.decreaseIndent(); 1676 pw.println(); 1677 1678 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 1679 pw.print("Active default network: "); 1680 if (defaultNai == null) { 1681 pw.println("none"); 1682 } else { 1683 pw.println(defaultNai.network.netId); 1684 } 1685 pw.println(); 1686 1687 pw.println("Current Networks:"); 1688 pw.increaseIndent(); 1689 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 1690 pw.println(nai.toString()); 1691 pw.increaseIndent(); 1692 pw.println("Requests:"); 1693 pw.increaseIndent(); 1694 for (int i = 0; i < nai.networkRequests.size(); i++) { 1695 pw.println(nai.networkRequests.valueAt(i).toString()); 1696 } 1697 pw.decreaseIndent(); 1698 pw.println("Lingered:"); 1699 pw.increaseIndent(); 1700 for (NetworkRequest nr : nai.networkLingered) pw.println(nr.toString()); 1701 pw.decreaseIndent(); 1702 pw.decreaseIndent(); 1703 } 1704 pw.decreaseIndent(); 1705 pw.println(); 1706 1707 pw.println("Network Requests:"); 1708 pw.increaseIndent(); 1709 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 1710 pw.println(nri.toString()); 1711 } 1712 pw.println(); 1713 pw.decreaseIndent(); 1714 1715 pw.print("mActiveDefaultNetwork: " + mActiveDefaultNetwork); 1716 if (mActiveDefaultNetwork != TYPE_NONE) { 1717 NetworkInfo activeNetworkInfo = getActiveNetworkInfo(); 1718 if (activeNetworkInfo != null) { 1719 pw.print(" " + activeNetworkInfo.getState() + 1720 "/" + activeNetworkInfo.getDetailedState()); 1721 } 1722 } 1723 pw.println(); 1724 1725 pw.println("mLegacyTypeTracker:"); 1726 pw.increaseIndent(); 1727 mLegacyTypeTracker.dump(pw); 1728 pw.decreaseIndent(); 1729 pw.println(); 1730 1731 synchronized (this) { 1732 pw.println("NetworkTranstionWakeLock is currently " + 1733 (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held."); 1734 pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy); 1735 } 1736 pw.println(); 1737 1738 mTethering.dump(fd, pw, args); 1739 1740 if (mInetLog != null) { 1741 pw.println(); 1742 pw.println("Inet condition reports:"); 1743 pw.increaseIndent(); 1744 for(int i = 0; i < mInetLog.size(); i++) { 1745 pw.println(mInetLog.get(i)); 1746 } 1747 pw.decreaseIndent(); 1748 } 1749 } 1750 1751 // must be stateless - things change under us. 1752 private class NetworkStateTrackerHandler extends Handler { 1753 public NetworkStateTrackerHandler(Looper looper) { 1754 super(looper); 1755 } 1756 1757 @Override 1758 public void handleMessage(Message msg) { 1759 NetworkInfo info; 1760 switch (msg.what) { 1761 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 1762 handleAsyncChannelHalfConnect(msg); 1763 break; 1764 } 1765 case AsyncChannel.CMD_CHANNEL_DISCONNECT: { 1766 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1767 if (nai != null) nai.asyncChannel.disconnect(); 1768 break; 1769 } 1770 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 1771 handleAsyncChannelDisconnected(msg); 1772 break; 1773 } 1774 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { 1775 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1776 if (nai == null) { 1777 loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); 1778 } else { 1779 updateCapabilities(nai, (NetworkCapabilities)msg.obj); 1780 } 1781 break; 1782 } 1783 case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { 1784 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1785 if (nai == null) { 1786 loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); 1787 } else { 1788 if (VDBG) { 1789 log("Update of Linkproperties for " + nai.name() + 1790 "; created=" + nai.created); 1791 } 1792 LinkProperties oldLp = nai.linkProperties; 1793 synchronized (nai) { 1794 nai.linkProperties = (LinkProperties)msg.obj; 1795 } 1796 if (nai.created) updateLinkProperties(nai, oldLp); 1797 } 1798 break; 1799 } 1800 case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { 1801 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1802 if (nai == null) { 1803 loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); 1804 break; 1805 } 1806 info = (NetworkInfo) msg.obj; 1807 updateNetworkInfo(nai, info); 1808 break; 1809 } 1810 case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { 1811 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1812 if (nai == null) { 1813 loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); 1814 break; 1815 } 1816 Integer score = (Integer) msg.obj; 1817 if (score != null) updateNetworkScore(nai, score.intValue()); 1818 break; 1819 } 1820 case NetworkAgent.EVENT_UID_RANGES_ADDED: { 1821 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1822 if (nai == null) { 1823 loge("EVENT_UID_RANGES_ADDED from unknown NetworkAgent"); 1824 break; 1825 } 1826 try { 1827 mNetd.addVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1828 } catch (Exception e) { 1829 // Never crash! 1830 loge("Exception in addVpnUidRanges: " + e); 1831 } 1832 break; 1833 } 1834 case NetworkAgent.EVENT_UID_RANGES_REMOVED: { 1835 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1836 if (nai == null) { 1837 loge("EVENT_UID_RANGES_REMOVED from unknown NetworkAgent"); 1838 break; 1839 } 1840 try { 1841 mNetd.removeVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1842 } catch (Exception e) { 1843 // Never crash! 1844 loge("Exception in removeVpnUidRanges: " + e); 1845 } 1846 break; 1847 } 1848 case NetworkAgent.EVENT_BLOCK_ADDRESS_FAMILY: { 1849 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1850 if (nai == null) { 1851 loge("EVENT_BLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1852 break; 1853 } 1854 try { 1855 mNetd.blockAddressFamily((Integer) msg.obj, nai.network.netId, 1856 nai.linkProperties.getInterfaceName()); 1857 } catch (Exception e) { 1858 // Never crash! 1859 loge("Exception in blockAddressFamily: " + e); 1860 } 1861 break; 1862 } 1863 case NetworkAgent.EVENT_UNBLOCK_ADDRESS_FAMILY: { 1864 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1865 if (nai == null) { 1866 loge("EVENT_UNBLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1867 break; 1868 } 1869 try { 1870 mNetd.unblockAddressFamily((Integer) msg.obj, nai.network.netId, 1871 nai.linkProperties.getInterfaceName()); 1872 } catch (Exception e) { 1873 // Never crash! 1874 loge("Exception in blockAddressFamily: " + e); 1875 } 1876 break; 1877 } 1878 case NetworkMonitor.EVENT_NETWORK_VALIDATED: { 1879 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1880 handleConnectionValidated(nai); 1881 break; 1882 } 1883 case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { 1884 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1885 handleLingerComplete(nai); 1886 break; 1887 } 1888 case NetworkMonitor.EVENT_PROVISIONING_NOTIFICATION: { 1889 if (msg.arg1 == 0) { 1890 setProvNotificationVisibleIntent(false, msg.arg2, 0, null, null); 1891 } else { 1892 NetworkAgentInfo nai = mNetworkForNetId.get(msg.arg2); 1893 if (nai == null) { 1894 loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); 1895 break; 1896 } 1897 setProvNotificationVisibleIntent(true, msg.arg2, nai.networkInfo.getType(), 1898 nai.networkInfo.getExtraInfo(), (PendingIntent)msg.obj); 1899 } 1900 break; 1901 } 1902 case NetworkStateTracker.EVENT_STATE_CHANGED: { 1903 info = (NetworkInfo) msg.obj; 1904 NetworkInfo.State state = info.getState(); 1905 1906 if (VDBG || (state == NetworkInfo.State.CONNECTED) || 1907 (state == NetworkInfo.State.DISCONNECTED) || 1908 (state == NetworkInfo.State.SUSPENDED)) { 1909 log("ConnectivityChange for " + 1910 info.getTypeName() + ": " + 1911 state + "/" + info.getDetailedState()); 1912 } 1913 1914 // Since mobile has the notion of a network/apn that can be used for 1915 // provisioning we need to check every time we're connected as 1916 // CaptiveProtalTracker won't detected it because DCT doesn't report it 1917 // as connected as ACTION_ANY_DATA_CONNECTION_STATE_CHANGED instead its 1918 // reported as ACTION_DATA_CONNECTION_CONNECTED_TO_PROVISIONING_APN. Which 1919 // is received by MDST and sent here as EVENT_STATE_CHANGED. 1920 if (ConnectivityManager.isNetworkTypeMobile(info.getType()) 1921 && (0 != Settings.Global.getInt(mContext.getContentResolver(), 1922 Settings.Global.DEVICE_PROVISIONED, 0)) 1923 && (((state == NetworkInfo.State.CONNECTED) 1924 && (info.getType() == ConnectivityManager.TYPE_MOBILE)) 1925 || info.isConnectedToProvisioningNetwork())) { 1926 log("ConnectivityChange checkMobileProvisioning for" 1927 + " TYPE_MOBILE or ProvisioningNetwork"); 1928 checkMobileProvisioning(CheckMp.MAX_TIMEOUT_MS); 1929 } 1930 1931 EventLogTags.writeConnectivityStateChanged( 1932 info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); 1933 1934 if (info.isConnectedToProvisioningNetwork()) { 1935 /** 1936 * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING 1937 * for now its an in between network, its a network that 1938 * is actually a default network but we don't want it to be 1939 * announced as such to keep background applications from 1940 * trying to use it. It turns out that some still try so we 1941 * take the additional step of clearing any default routes 1942 * to the link that may have incorrectly setup by the lower 1943 * levels. 1944 */ 1945 LinkProperties lp = getLinkPropertiesForTypeInternal(info.getType()); 1946 if (DBG) { 1947 log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); 1948 } 1949 1950 // Clear any default routes setup by the radio so 1951 // any activity by applications trying to use this 1952 // connection will fail until the provisioning network 1953 // is enabled. 1954 /* 1955 for (RouteInfo r : lp.getRoutes()) { 1956 removeRoute(lp, r, TO_DEFAULT_TABLE, 1957 mNetTrackers[info.getType()].getNetwork().netId); 1958 } 1959 */ 1960 } else if (state == NetworkInfo.State.DISCONNECTED) { 1961 } else if (state == NetworkInfo.State.SUSPENDED) { 1962 } else if (state == NetworkInfo.State.CONNECTED) { 1963 // handleConnect(info); 1964 } 1965 if (mLockdownTracker != null) { 1966 mLockdownTracker.onNetworkInfoChanged(info); 1967 } 1968 break; 1969 } 1970 case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { 1971 info = (NetworkInfo) msg.obj; 1972 // TODO: Temporary allowing network configuration 1973 // change not resetting sockets. 1974 // @see bug/4455071 1975 /* 1976 handleConnectivityChange(info.getType(), mCurrentLinkProperties[info.getType()], 1977 false); 1978 */ 1979 break; 1980 } 1981 case NetworkStateTracker.EVENT_NETWORK_SUBTYPE_CHANGED: { 1982 info = (NetworkInfo) msg.obj; 1983 int type = info.getType(); 1984 if (mNetConfigs[type].isDefault()) updateNetworkSettings(mNetTrackers[type]); 1985 break; 1986 } 1987 } 1988 } 1989 } 1990 1991 private void handleAsyncChannelHalfConnect(Message msg) { 1992 AsyncChannel ac = (AsyncChannel) msg.obj; 1993 if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { 1994 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 1995 if (VDBG) log("NetworkFactory connected"); 1996 // A network factory has connected. Send it all current NetworkRequests. 1997 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 1998 if (nri.isRequest == false) continue; 1999 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2000 ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, 2001 (nai != null ? nai.currentScore : 0), 0, nri.request); 2002 } 2003 } else { 2004 loge("Error connecting NetworkFactory"); 2005 mNetworkFactoryInfos.remove(msg.obj); 2006 } 2007 } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { 2008 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2009 if (VDBG) log("NetworkAgent connected"); 2010 // A network agent has requested a connection. Establish the connection. 2011 mNetworkAgentInfos.get(msg.replyTo).asyncChannel. 2012 sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 2013 } else { 2014 loge("Error connecting NetworkAgent"); 2015 NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); 2016 if (nai != null) { 2017 synchronized (mNetworkForNetId) { 2018 mNetworkForNetId.remove(nai.network.netId); 2019 } 2020 // Just in case. 2021 mLegacyTypeTracker.remove(nai); 2022 } 2023 } 2024 } 2025 } 2026 private void handleAsyncChannelDisconnected(Message msg) { 2027 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 2028 if (nai != null) { 2029 if (DBG) { 2030 log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); 2031 } 2032 // A network agent has disconnected. 2033 if (nai.created) { 2034 // Tell netd to clean up the configuration for this network 2035 // (routing rules, DNS, etc). 2036 try { 2037 mNetd.removeNetwork(nai.network.netId); 2038 } catch (Exception e) { 2039 loge("Exception removing network: " + e); 2040 } 2041 } 2042 // TODO - if we move the logic to the network agent (have them disconnect 2043 // because they lost all their requests or because their score isn't good) 2044 // then they would disconnect organically, report their new state and then 2045 // disconnect the channel. 2046 if (nai.networkInfo.isConnected()) { 2047 nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, 2048 null, null); 2049 } 2050 if (isDefaultNetwork(nai)) { 2051 mDefaultInetConditionPublished = 0; 2052 } 2053 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); 2054 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); 2055 mNetworkAgentInfos.remove(msg.replyTo); 2056 updateClat(null, nai.linkProperties, nai); 2057 mLegacyTypeTracker.remove(nai); 2058 synchronized (mNetworkForNetId) { 2059 mNetworkForNetId.remove(nai.network.netId); 2060 } 2061 // Since we've lost the network, go through all the requests that 2062 // it was satisfying and see if any other factory can satisfy them. 2063 final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); 2064 for (int i = 0; i < nai.networkRequests.size(); i++) { 2065 NetworkRequest request = nai.networkRequests.valueAt(i); 2066 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); 2067 if (VDBG) { 2068 log(" checking request " + request + ", currentNetwork = " + 2069 (currentNetwork != null ? currentNetwork.name() : "null")); 2070 } 2071 if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { 2072 mNetworkForRequestId.remove(request.requestId); 2073 sendUpdatedScoreToFactories(request, 0); 2074 NetworkAgentInfo alternative = null; 2075 for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { 2076 NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); 2077 if (existing.networkInfo.isConnected() && 2078 request.networkCapabilities.satisfiedByNetworkCapabilities( 2079 existing.networkCapabilities) && 2080 (alternative == null || 2081 alternative.currentScore < existing.currentScore)) { 2082 alternative = existing; 2083 } 2084 } 2085 if (alternative != null && !toActivate.contains(alternative)) { 2086 toActivate.add(alternative); 2087 } 2088 } 2089 } 2090 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 2091 removeDataActivityTracking(nai); 2092 mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; 2093 requestNetworkTransitionWakelock(nai.name()); 2094 } 2095 for (NetworkAgentInfo networkToActivate : toActivate) { 2096 networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2097 } 2098 } 2099 } 2100 2101 private void handleRegisterNetworkRequest(Message msg) { 2102 final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); 2103 final NetworkCapabilities newCap = nri.request.networkCapabilities; 2104 int score = 0; 2105 2106 // Check for the best currently alive network that satisfies this request 2107 NetworkAgentInfo bestNetwork = null; 2108 for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { 2109 if (VDBG) log("handleRegisterNetworkRequest checking " + network.name()); 2110 if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { 2111 if (VDBG) log("apparently satisfied. currentScore=" + network.currentScore); 2112 if ((bestNetwork == null) || bestNetwork.currentScore < network.currentScore) { 2113 bestNetwork = network; 2114 } 2115 } 2116 } 2117 if (bestNetwork != null) { 2118 if (VDBG) log("using " + bestNetwork.name()); 2119 if (nri.isRequest && bestNetwork.networkInfo.isConnected()) { 2120 // Cancel any lingering so the linger timeout doesn't teardown this network 2121 // even though we have a request for it. 2122 bestNetwork.networkLingered.clear(); 2123 bestNetwork.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2124 } 2125 bestNetwork.addRequest(nri.request); 2126 mNetworkForRequestId.put(nri.request.requestId, bestNetwork); 2127 notifyNetworkCallback(bestNetwork, nri); 2128 score = bestNetwork.currentScore; 2129 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 2130 mLegacyTypeTracker.add(nri.request.legacyType, bestNetwork); 2131 } 2132 } 2133 mNetworkRequests.put(nri.request, nri); 2134 if (nri.isRequest) { 2135 if (DBG) log("sending new NetworkRequest to factories"); 2136 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2137 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 2138 0, nri.request); 2139 } 2140 } 2141 } 2142 2143 private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) { 2144 NetworkRequestInfo nri = mNetworkRequests.get(request); 2145 if (nri != null) { 2146 if (nri.mUid != callingUid) { 2147 if (DBG) log("Attempt to release unowned NetworkRequest " + request); 2148 return; 2149 } 2150 if (DBG) log("releasing NetworkRequest " + request); 2151 nri.unlinkDeathRecipient(); 2152 mNetworkRequests.remove(request); 2153 // tell the network currently servicing this that it's no longer interested 2154 NetworkAgentInfo affectedNetwork = mNetworkForRequestId.get(nri.request.requestId); 2155 if (affectedNetwork != null) { 2156 mNetworkForRequestId.remove(nri.request.requestId); 2157 affectedNetwork.networkRequests.remove(nri.request.requestId); 2158 if (VDBG) { 2159 log(" Removing from current network " + affectedNetwork.name() + ", leaving " + 2160 affectedNetwork.networkRequests.size() + " requests."); 2161 } 2162 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 2163 mLegacyTypeTracker.remove(nri.request.legacyType, affectedNetwork); 2164 } 2165 } 2166 2167 if (nri.isRequest) { 2168 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2169 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 2170 nri.request); 2171 } 2172 2173 if (affectedNetwork != null) { 2174 // check if this network still has live requests - otherwise, tear down 2175 // TODO - probably push this to the NF/NA 2176 boolean keep = affectedNetwork.isVPN(); 2177 for (int i = 0; i < affectedNetwork.networkRequests.size() && !keep; i++) { 2178 NetworkRequest r = affectedNetwork.networkRequests.valueAt(i); 2179 if (mNetworkRequests.get(r).isRequest) { 2180 keep = true; 2181 } 2182 } 2183 if (keep == false) { 2184 if (DBG) log("no live requests for " + affectedNetwork.name() + 2185 "; disconnecting"); 2186 affectedNetwork.asyncChannel.disconnect(); 2187 } 2188 } 2189 } 2190 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 2191 } 2192 } 2193 2194 private class InternalHandler extends Handler { 2195 public InternalHandler(Looper looper) { 2196 super(looper); 2197 } 2198 2199 @Override 2200 public void handleMessage(Message msg) { 2201 NetworkInfo info; 2202 switch (msg.what) { 2203 case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: 2204 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 2205 String causedBy = null; 2206 synchronized (ConnectivityService.this) { 2207 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 2208 mNetTransitionWakeLock.isHeld()) { 2209 mNetTransitionWakeLock.release(); 2210 causedBy = mNetTransitionWakeLockCausedBy; 2211 } else { 2212 break; 2213 } 2214 } 2215 if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { 2216 log("Failed to find a new network - expiring NetTransition Wakelock"); 2217 } else { 2218 log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + 2219 " cleared because we found a replacement network"); 2220 } 2221 break; 2222 } 2223 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 2224 handleDeprecatedGlobalHttpProxy(); 2225 break; 2226 } 2227 case EVENT_SET_DEPENDENCY_MET: { 2228 boolean met = (msg.arg1 == ENABLED); 2229 handleSetDependencyMet(msg.arg2, met); 2230 break; 2231 } 2232 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 2233 Intent intent = (Intent)msg.obj; 2234 sendStickyBroadcast(intent); 2235 break; 2236 } 2237 case EVENT_SET_POLICY_DATA_ENABLE: { 2238 final int networkType = msg.arg1; 2239 final boolean enabled = msg.arg2 == ENABLED; 2240 handleSetPolicyDataEnable(networkType, enabled); 2241 break; 2242 } 2243 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 2244 int tag = mEnableFailFastMobileDataTag.get(); 2245 if (msg.arg1 == tag) { 2246 MobileDataStateTracker mobileDst = 2247 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2248 if (mobileDst != null) { 2249 mobileDst.setEnableFailFastMobileData(msg.arg2); 2250 } 2251 } else { 2252 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 2253 + " != tag:" + tag); 2254 } 2255 break; 2256 } 2257 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 2258 handleNetworkSamplingTimeout(); 2259 break; 2260 } 2261 case EVENT_PROXY_HAS_CHANGED: { 2262 handleApplyDefaultProxy((ProxyInfo)msg.obj); 2263 break; 2264 } 2265 case EVENT_REGISTER_NETWORK_FACTORY: { 2266 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 2267 break; 2268 } 2269 case EVENT_UNREGISTER_NETWORK_FACTORY: { 2270 handleUnregisterNetworkFactory((Messenger)msg.obj); 2271 break; 2272 } 2273 case EVENT_REGISTER_NETWORK_AGENT: { 2274 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 2275 break; 2276 } 2277 case EVENT_REGISTER_NETWORK_REQUEST: 2278 case EVENT_REGISTER_NETWORK_LISTENER: { 2279 handleRegisterNetworkRequest(msg); 2280 break; 2281 } 2282 case EVENT_RELEASE_NETWORK_REQUEST: { 2283 handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); 2284 break; 2285 } 2286 case EVENT_SYSTEM_READY: { 2287 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2288 nai.networkMonitor.systemReady = true; 2289 } 2290 break; 2291 } 2292 } 2293 } 2294 } 2295 2296 // javadoc from interface 2297 public int tether(String iface) { 2298 enforceTetherChangePermission(); 2299 2300 if (isTetheringSupported()) { 2301 return mTethering.tether(iface); 2302 } else { 2303 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2304 } 2305 } 2306 2307 // javadoc from interface 2308 public int untether(String iface) { 2309 enforceTetherChangePermission(); 2310 2311 if (isTetheringSupported()) { 2312 return mTethering.untether(iface); 2313 } else { 2314 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2315 } 2316 } 2317 2318 // javadoc from interface 2319 public int getLastTetherError(String iface) { 2320 enforceTetherAccessPermission(); 2321 2322 if (isTetheringSupported()) { 2323 return mTethering.getLastTetherError(iface); 2324 } else { 2325 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2326 } 2327 } 2328 2329 // TODO - proper iface API for selection by property, inspection, etc 2330 public String[] getTetherableUsbRegexs() { 2331 enforceTetherAccessPermission(); 2332 if (isTetheringSupported()) { 2333 return mTethering.getTetherableUsbRegexs(); 2334 } else { 2335 return new String[0]; 2336 } 2337 } 2338 2339 public String[] getTetherableWifiRegexs() { 2340 enforceTetherAccessPermission(); 2341 if (isTetheringSupported()) { 2342 return mTethering.getTetherableWifiRegexs(); 2343 } else { 2344 return new String[0]; 2345 } 2346 } 2347 2348 public String[] getTetherableBluetoothRegexs() { 2349 enforceTetherAccessPermission(); 2350 if (isTetheringSupported()) { 2351 return mTethering.getTetherableBluetoothRegexs(); 2352 } else { 2353 return new String[0]; 2354 } 2355 } 2356 2357 public int setUsbTethering(boolean enable) { 2358 enforceTetherChangePermission(); 2359 if (isTetheringSupported()) { 2360 return mTethering.setUsbTethering(enable); 2361 } else { 2362 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2363 } 2364 } 2365 2366 // TODO - move iface listing, queries, etc to new module 2367 // javadoc from interface 2368 public String[] getTetherableIfaces() { 2369 enforceTetherAccessPermission(); 2370 return mTethering.getTetherableIfaces(); 2371 } 2372 2373 public String[] getTetheredIfaces() { 2374 enforceTetherAccessPermission(); 2375 return mTethering.getTetheredIfaces(); 2376 } 2377 2378 public String[] getTetheringErroredIfaces() { 2379 enforceTetherAccessPermission(); 2380 return mTethering.getErroredIfaces(); 2381 } 2382 2383 public String[] getTetheredDhcpRanges() { 2384 enforceConnectivityInternalPermission(); 2385 return mTethering.getTetheredDhcpRanges(); 2386 } 2387 2388 // if ro.tether.denied = true we default to no tethering 2389 // gservices could set the secure setting to 1 though to enable it on a build where it 2390 // had previously been turned off. 2391 public boolean isTetheringSupported() { 2392 enforceTetherAccessPermission(); 2393 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 2394 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 2395 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0) 2396 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); 2397 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 2398 mTethering.getTetherableWifiRegexs().length != 0 || 2399 mTethering.getTetherableBluetoothRegexs().length != 0) && 2400 mTethering.getUpstreamIfaceTypes().length != 0); 2401 } 2402 2403 // Called when we lose the default network and have no replacement yet. 2404 // This will automatically be cleared after X seconds or a new default network 2405 // becomes CONNECTED, whichever happens first. The timer is started by the 2406 // first caller and not restarted by subsequent callers. 2407 private void requestNetworkTransitionWakelock(String forWhom) { 2408 int serialNum = 0; 2409 synchronized (this) { 2410 if (mNetTransitionWakeLock.isHeld()) return; 2411 serialNum = ++mNetTransitionWakeLockSerialNumber; 2412 mNetTransitionWakeLock.acquire(); 2413 mNetTransitionWakeLockCausedBy = forWhom; 2414 } 2415 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2416 EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), 2417 mNetTransitionWakeLockTimeout); 2418 return; 2419 } 2420 2421 // 100 percent is full good, 0 is full bad. 2422 public void reportInetCondition(int networkType, int percentage) { 2423 if (percentage > 50) return; // don't handle good network reports 2424 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 2425 if (nai != null) reportBadNetwork(nai.network); 2426 } 2427 2428 public void reportBadNetwork(Network network) { 2429 //TODO 2430 } 2431 2432 public ProxyInfo getProxy() { 2433 // this information is already available as a world read/writable jvm property 2434 // so this API change wouldn't have a benifit. It also breaks the passing 2435 // of proxy info to all the JVMs. 2436 // enforceAccessPermission(); 2437 synchronized (mProxyLock) { 2438 ProxyInfo ret = mGlobalProxy; 2439 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 2440 return ret; 2441 } 2442 } 2443 2444 public void setGlobalProxy(ProxyInfo proxyProperties) { 2445 enforceConnectivityInternalPermission(); 2446 2447 synchronized (mProxyLock) { 2448 if (proxyProperties == mGlobalProxy) return; 2449 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 2450 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 2451 2452 String host = ""; 2453 int port = 0; 2454 String exclList = ""; 2455 String pacFileUrl = ""; 2456 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 2457 (proxyProperties.getPacFileUrl() != null))) { 2458 if (!proxyProperties.isValid()) { 2459 if (DBG) 2460 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2461 return; 2462 } 2463 mGlobalProxy = new ProxyInfo(proxyProperties); 2464 host = mGlobalProxy.getHost(); 2465 port = mGlobalProxy.getPort(); 2466 exclList = mGlobalProxy.getExclusionListAsString(); 2467 if (proxyProperties.getPacFileUrl() != null) { 2468 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 2469 } 2470 } else { 2471 mGlobalProxy = null; 2472 } 2473 ContentResolver res = mContext.getContentResolver(); 2474 final long token = Binder.clearCallingIdentity(); 2475 try { 2476 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 2477 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 2478 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 2479 exclList); 2480 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 2481 } finally { 2482 Binder.restoreCallingIdentity(token); 2483 } 2484 } 2485 2486 if (mGlobalProxy == null) { 2487 proxyProperties = mDefaultProxy; 2488 } 2489 sendProxyBroadcast(proxyProperties); 2490 } 2491 2492 private void loadGlobalProxy() { 2493 ContentResolver res = mContext.getContentResolver(); 2494 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 2495 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 2496 String exclList = Settings.Global.getString(res, 2497 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 2498 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 2499 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 2500 ProxyInfo proxyProperties; 2501 if (!TextUtils.isEmpty(pacFileUrl)) { 2502 proxyProperties = new ProxyInfo(pacFileUrl); 2503 } else { 2504 proxyProperties = new ProxyInfo(host, port, exclList); 2505 } 2506 if (!proxyProperties.isValid()) { 2507 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2508 return; 2509 } 2510 2511 synchronized (mProxyLock) { 2512 mGlobalProxy = proxyProperties; 2513 } 2514 } 2515 } 2516 2517 public ProxyInfo getGlobalProxy() { 2518 // this information is already available as a world read/writable jvm property 2519 // so this API change wouldn't have a benifit. It also breaks the passing 2520 // of proxy info to all the JVMs. 2521 // enforceAccessPermission(); 2522 synchronized (mProxyLock) { 2523 return mGlobalProxy; 2524 } 2525 } 2526 2527 private void handleApplyDefaultProxy(ProxyInfo proxy) { 2528 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 2529 && (proxy.getPacFileUrl() == null)) { 2530 proxy = null; 2531 } 2532 synchronized (mProxyLock) { 2533 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 2534 if (mDefaultProxy == proxy) return; // catches repeated nulls 2535 if (proxy != null && !proxy.isValid()) { 2536 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 2537 return; 2538 } 2539 2540 // This call could be coming from the PacManager, containing the port of the local 2541 // proxy. If this new proxy matches the global proxy then copy this proxy to the 2542 // global (to get the correct local port), and send a broadcast. 2543 // TODO: Switch PacManager to have its own message to send back rather than 2544 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 2545 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 2546 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 2547 mGlobalProxy = proxy; 2548 sendProxyBroadcast(mGlobalProxy); 2549 return; 2550 } 2551 mDefaultProxy = proxy; 2552 2553 if (mGlobalProxy != null) return; 2554 if (!mDefaultProxyDisabled) { 2555 sendProxyBroadcast(proxy); 2556 } 2557 } 2558 } 2559 2560 private void handleDeprecatedGlobalHttpProxy() { 2561 String proxy = Settings.Global.getString(mContext.getContentResolver(), 2562 Settings.Global.HTTP_PROXY); 2563 if (!TextUtils.isEmpty(proxy)) { 2564 String data[] = proxy.split(":"); 2565 if (data.length == 0) { 2566 return; 2567 } 2568 2569 String proxyHost = data[0]; 2570 int proxyPort = 8080; 2571 if (data.length > 1) { 2572 try { 2573 proxyPort = Integer.parseInt(data[1]); 2574 } catch (NumberFormatException e) { 2575 return; 2576 } 2577 } 2578 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 2579 setGlobalProxy(p); 2580 } 2581 } 2582 2583 private void sendProxyBroadcast(ProxyInfo proxy) { 2584 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 2585 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 2586 if (DBG) log("sending Proxy Broadcast for " + proxy); 2587 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 2588 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 2589 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2590 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 2591 final long ident = Binder.clearCallingIdentity(); 2592 try { 2593 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2594 } finally { 2595 Binder.restoreCallingIdentity(ident); 2596 } 2597 } 2598 2599 private static class SettingsObserver extends ContentObserver { 2600 private int mWhat; 2601 private Handler mHandler; 2602 SettingsObserver(Handler handler, int what) { 2603 super(handler); 2604 mHandler = handler; 2605 mWhat = what; 2606 } 2607 2608 void observe(Context context) { 2609 ContentResolver resolver = context.getContentResolver(); 2610 resolver.registerContentObserver(Settings.Global.getUriFor( 2611 Settings.Global.HTTP_PROXY), false, this); 2612 } 2613 2614 @Override 2615 public void onChange(boolean selfChange) { 2616 mHandler.obtainMessage(mWhat).sendToTarget(); 2617 } 2618 } 2619 2620 private static void log(String s) { 2621 Slog.d(TAG, s); 2622 } 2623 2624 private static void loge(String s) { 2625 Slog.e(TAG, s); 2626 } 2627 2628 int convertFeatureToNetworkType(int networkType, String feature) { 2629 int usedNetworkType = networkType; 2630 2631 if(networkType == ConnectivityManager.TYPE_MOBILE) { 2632 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 2633 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 2634 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 2635 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 2636 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 2637 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 2638 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 2639 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 2640 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 2641 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 2642 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 2643 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 2644 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 2645 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 2646 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 2647 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { 2648 usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; 2649 } else { 2650 Slog.e(TAG, "Can't match any mobile netTracker!"); 2651 } 2652 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 2653 if (TextUtils.equals(feature, "p2p")) { 2654 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 2655 } else { 2656 Slog.e(TAG, "Can't match any wifi netTracker!"); 2657 } 2658 } else { 2659 Slog.e(TAG, "Unexpected network type"); 2660 } 2661 return usedNetworkType; 2662 } 2663 2664 private static <T> T checkNotNull(T value, String message) { 2665 if (value == null) { 2666 throw new NullPointerException(message); 2667 } 2668 return value; 2669 } 2670 2671 /** 2672 * Prepare for a VPN application. This method is used by VpnDialogs 2673 * and not available in ConnectivityManager. Permissions are checked 2674 * in Vpn class. 2675 * @hide 2676 */ 2677 @Override 2678 public boolean prepareVpn(String oldPackage, String newPackage) { 2679 throwIfLockdownEnabled(); 2680 int user = UserHandle.getUserId(Binder.getCallingUid()); 2681 synchronized(mVpns) { 2682 return mVpns.get(user).prepare(oldPackage, newPackage); 2683 } 2684 } 2685 2686 /** 2687 * Configure a TUN interface and return its file descriptor. Parameters 2688 * are encoded and opaque to this class. This method is used by VpnBuilder 2689 * and not available in ConnectivityManager. Permissions are checked in 2690 * Vpn class. 2691 * @hide 2692 */ 2693 @Override 2694 public ParcelFileDescriptor establishVpn(VpnConfig config) { 2695 throwIfLockdownEnabled(); 2696 int user = UserHandle.getUserId(Binder.getCallingUid()); 2697 synchronized(mVpns) { 2698 return mVpns.get(user).establish(config); 2699 } 2700 } 2701 2702 /** 2703 * Start legacy VPN, controlling native daemons as needed. Creates a 2704 * secondary thread to perform connection work, returning quickly. 2705 */ 2706 @Override 2707 public void startLegacyVpn(VpnProfile profile) { 2708 throwIfLockdownEnabled(); 2709 final LinkProperties egress = getActiveLinkProperties(); 2710 if (egress == null) { 2711 throw new IllegalStateException("Missing active network connection"); 2712 } 2713 int user = UserHandle.getUserId(Binder.getCallingUid()); 2714 synchronized(mVpns) { 2715 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 2716 } 2717 } 2718 2719 /** 2720 * Return the information of the ongoing legacy VPN. This method is used 2721 * by VpnSettings and not available in ConnectivityManager. Permissions 2722 * are checked in Vpn class. 2723 * @hide 2724 */ 2725 @Override 2726 public LegacyVpnInfo getLegacyVpnInfo() { 2727 throwIfLockdownEnabled(); 2728 int user = UserHandle.getUserId(Binder.getCallingUid()); 2729 synchronized(mVpns) { 2730 return mVpns.get(user).getLegacyVpnInfo(); 2731 } 2732 } 2733 2734 /** 2735 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 2736 * not available in ConnectivityManager. 2737 * Permissions are checked in Vpn class. 2738 * @hide 2739 */ 2740 @Override 2741 public VpnConfig getVpnConfig() { 2742 int user = UserHandle.getUserId(Binder.getCallingUid()); 2743 synchronized(mVpns) { 2744 return mVpns.get(user).getVpnConfig(); 2745 } 2746 } 2747 2748 @Override 2749 public boolean updateLockdownVpn() { 2750 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 2751 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 2752 return false; 2753 } 2754 2755 // Tear down existing lockdown if profile was removed 2756 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 2757 if (mLockdownEnabled) { 2758 if (!mKeyStore.isUnlocked()) { 2759 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 2760 return false; 2761 } 2762 2763 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 2764 final VpnProfile profile = VpnProfile.decode( 2765 profileName, mKeyStore.get(Credentials.VPN + profileName)); 2766 int user = UserHandle.getUserId(Binder.getCallingUid()); 2767 synchronized(mVpns) { 2768 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 2769 profile)); 2770 } 2771 } else { 2772 setLockdownTracker(null); 2773 } 2774 2775 return true; 2776 } 2777 2778 /** 2779 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 2780 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 2781 */ 2782 private void setLockdownTracker(LockdownVpnTracker tracker) { 2783 // Shutdown any existing tracker 2784 final LockdownVpnTracker existing = mLockdownTracker; 2785 mLockdownTracker = null; 2786 if (existing != null) { 2787 existing.shutdown(); 2788 } 2789 2790 try { 2791 if (tracker != null) { 2792 mNetd.setFirewallEnabled(true); 2793 mNetd.setFirewallInterfaceRule("lo", true); 2794 mLockdownTracker = tracker; 2795 mLockdownTracker.init(); 2796 } else { 2797 mNetd.setFirewallEnabled(false); 2798 } 2799 } catch (RemoteException e) { 2800 // ignored; NMS lives inside system_server 2801 } 2802 } 2803 2804 private void throwIfLockdownEnabled() { 2805 if (mLockdownEnabled) { 2806 throw new IllegalStateException("Unavailable in lockdown mode"); 2807 } 2808 } 2809 2810 public void supplyMessenger(int networkType, Messenger messenger) { 2811 enforceConnectivityInternalPermission(); 2812 2813 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 2814 mNetTrackers[networkType].supplyMessenger(messenger); 2815 } 2816 } 2817 2818 public int findConnectionTypeForIface(String iface) { 2819 enforceConnectivityInternalPermission(); 2820 2821 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 2822 for (NetworkStateTracker tracker : mNetTrackers) { 2823 if (tracker != null) { 2824 LinkProperties lp = tracker.getLinkProperties(); 2825 if (lp != null && iface.equals(lp.getInterfaceName())) { 2826 return tracker.getNetworkInfo().getType(); 2827 } 2828 } 2829 } 2830 return ConnectivityManager.TYPE_NONE; 2831 } 2832 2833 /** 2834 * Have mobile data fail fast if enabled. 2835 * 2836 * @param enabled DctConstants.ENABLED/DISABLED 2837 */ 2838 private void setEnableFailFastMobileData(int enabled) { 2839 int tag; 2840 2841 if (enabled == DctConstants.ENABLED) { 2842 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 2843 } else { 2844 tag = mEnableFailFastMobileDataTag.get(); 2845 } 2846 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 2847 enabled)); 2848 } 2849 2850 private boolean isMobileDataStateTrackerReady() { 2851 MobileDataStateTracker mdst = 2852 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 2853 return (mdst != null) && (mdst.isReady()); 2854 } 2855 2856 /** 2857 * The ResultReceiver resultCode for checkMobileProvisioning (CMP_RESULT_CODE) 2858 */ 2859 2860 /** 2861 * No connection was possible to the network. 2862 * This is NOT a warm sim. 2863 */ 2864 private static final int CMP_RESULT_CODE_NO_CONNECTION = 0; 2865 2866 /** 2867 * A connection was made to the internet, all is well. 2868 * This is NOT a warm sim. 2869 */ 2870 private static final int CMP_RESULT_CODE_CONNECTABLE = 1; 2871 2872 /** 2873 * A connection was made but no dns server was available to resolve a name to address. 2874 * This is NOT a warm sim since provisioning network is supported. 2875 */ 2876 private static final int CMP_RESULT_CODE_NO_DNS = 2; 2877 2878 /** 2879 * A connection was made but could not open a TCP connection. 2880 * This is NOT a warm sim since provisioning network is supported. 2881 */ 2882 private static final int CMP_RESULT_CODE_NO_TCP_CONNECTION = 3; 2883 2884 /** 2885 * A connection was made but there was a redirection, we appear to be in walled garden. 2886 * This is an indication of a warm sim on a mobile network such as T-Mobile. 2887 */ 2888 private static final int CMP_RESULT_CODE_REDIRECTED = 4; 2889 2890 /** 2891 * The mobile network is a provisioning network. 2892 * This is an indication of a warm sim on a mobile network such as AT&T. 2893 */ 2894 private static final int CMP_RESULT_CODE_PROVISIONING_NETWORK = 5; 2895 2896 /** 2897 * The mobile network is provisioning 2898 */ 2899 private static final int CMP_RESULT_CODE_IS_PROVISIONING = 6; 2900 2901 private AtomicBoolean mIsProvisioningNetwork = new AtomicBoolean(false); 2902 private AtomicBoolean mIsStartingProvisioning = new AtomicBoolean(false); 2903 2904 private AtomicBoolean mIsCheckingMobileProvisioning = new AtomicBoolean(false); 2905 2906 @Override 2907 public int checkMobileProvisioning(int suggestedTimeOutMs) { 2908 int timeOutMs = -1; 2909 if (DBG) log("checkMobileProvisioning: E suggestedTimeOutMs=" + suggestedTimeOutMs); 2910 enforceConnectivityInternalPermission(); 2911 2912 final long token = Binder.clearCallingIdentity(); 2913 try { 2914 timeOutMs = suggestedTimeOutMs; 2915 if (suggestedTimeOutMs > CheckMp.MAX_TIMEOUT_MS) { 2916 timeOutMs = CheckMp.MAX_TIMEOUT_MS; 2917 } 2918 2919 // Check that mobile networks are supported 2920 if (!isNetworkSupported(ConnectivityManager.TYPE_MOBILE) 2921 || !isNetworkSupported(ConnectivityManager.TYPE_MOBILE_HIPRI)) { 2922 if (DBG) log("checkMobileProvisioning: X no mobile network"); 2923 return timeOutMs; 2924 } 2925 2926 // If we're already checking don't do it again 2927 // TODO: Add a queue of results... 2928 if (mIsCheckingMobileProvisioning.getAndSet(true)) { 2929 if (DBG) log("checkMobileProvisioning: X already checking ignore for the moment"); 2930 return timeOutMs; 2931 } 2932 2933 // Start off with mobile notification off 2934 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 2935 2936 CheckMp checkMp = new CheckMp(mContext, this); 2937 CheckMp.CallBack cb = new CheckMp.CallBack() { 2938 @Override 2939 void onComplete(Integer result) { 2940 if (DBG) log("CheckMp.onComplete: result=" + result); 2941 NetworkInfo ni = 2942 mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI].getNetworkInfo(); 2943 switch(result) { 2944 case CMP_RESULT_CODE_CONNECTABLE: 2945 case CMP_RESULT_CODE_NO_CONNECTION: 2946 case CMP_RESULT_CODE_NO_DNS: 2947 case CMP_RESULT_CODE_NO_TCP_CONNECTION: { 2948 if (DBG) log("CheckMp.onComplete: ignore, connected or no connection"); 2949 break; 2950 } 2951 case CMP_RESULT_CODE_REDIRECTED: { 2952 if (DBG) log("CheckMp.onComplete: warm sim"); 2953 String url = getMobileProvisioningUrl(); 2954 if (TextUtils.isEmpty(url)) { 2955 url = getMobileRedirectedProvisioningUrl(); 2956 } 2957 if (TextUtils.isEmpty(url) == false) { 2958 if (DBG) log("CheckMp.onComplete: warm (redirected), url=" + url); 2959 setProvNotificationVisible(true, 2960 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 2961 url); 2962 } else { 2963 if (DBG) log("CheckMp.onComplete: warm (redirected), no url"); 2964 } 2965 break; 2966 } 2967 case CMP_RESULT_CODE_PROVISIONING_NETWORK: { 2968 String url = getMobileProvisioningUrl(); 2969 if (TextUtils.isEmpty(url) == false) { 2970 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), url=" + url); 2971 setProvNotificationVisible(true, 2972 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 2973 url); 2974 // Mark that we've got a provisioning network and 2975 // Disable Mobile Data until user actually starts provisioning. 2976 mIsProvisioningNetwork.set(true); 2977 MobileDataStateTracker mdst = (MobileDataStateTracker) 2978 mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2979 2980 // Disable radio until user starts provisioning 2981 mdst.setRadio(false); 2982 } else { 2983 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), no url"); 2984 } 2985 break; 2986 } 2987 case CMP_RESULT_CODE_IS_PROVISIONING: { 2988 // FIXME: Need to know when provisioning is done. Probably we can 2989 // check the completion status if successful we're done if we 2990 // "timedout" or still connected to provisioning APN turn off data? 2991 if (DBG) log("CheckMp.onComplete: provisioning started"); 2992 mIsStartingProvisioning.set(false); 2993 break; 2994 } 2995 default: { 2996 loge("CheckMp.onComplete: ignore unexpected result=" + result); 2997 break; 2998 } 2999 } 3000 mIsCheckingMobileProvisioning.set(false); 3001 } 3002 }; 3003 CheckMp.Params params = 3004 new CheckMp.Params(checkMp.getDefaultUrl(), timeOutMs, cb); 3005 if (DBG) log("checkMobileProvisioning: params=" + params); 3006 // TODO: Reenable when calls to the now defunct 3007 // MobileDataStateTracker.isProvisioningNetwork() are removed. 3008 // This code should be moved to the Telephony code. 3009 // checkMp.execute(params); 3010 } finally { 3011 Binder.restoreCallingIdentity(token); 3012 if (DBG) log("checkMobileProvisioning: X"); 3013 } 3014 return timeOutMs; 3015 } 3016 3017 static class CheckMp extends 3018 AsyncTask<CheckMp.Params, Void, Integer> { 3019 private static final String CHECKMP_TAG = "CheckMp"; 3020 3021 // adb shell setprop persist.checkmp.testfailures 1 to enable testing failures 3022 private static boolean mTestingFailures; 3023 3024 // Choosing 4 loops as half of them will use HTTPS and the other half HTTP 3025 private static final int MAX_LOOPS = 4; 3026 3027 // Number of milli-seconds to complete all of the retires 3028 public static final int MAX_TIMEOUT_MS = 60000; 3029 3030 // The socket should retry only 5 seconds, the default is longer 3031 private static final int SOCKET_TIMEOUT_MS = 5000; 3032 3033 // Sleep time for network errors 3034 private static final int NET_ERROR_SLEEP_SEC = 3; 3035 3036 // Sleep time for network route establishment 3037 private static final int NET_ROUTE_ESTABLISHMENT_SLEEP_SEC = 3; 3038 3039 // Short sleep time for polling :( 3040 private static final int POLLING_SLEEP_SEC = 1; 3041 3042 private Context mContext; 3043 private ConnectivityService mCs; 3044 private TelephonyManager mTm; 3045 private Params mParams; 3046 3047 /** 3048 * Parameters for AsyncTask.execute 3049 */ 3050 static class Params { 3051 private String mUrl; 3052 private long mTimeOutMs; 3053 private CallBack mCb; 3054 3055 Params(String url, long timeOutMs, CallBack cb) { 3056 mUrl = url; 3057 mTimeOutMs = timeOutMs; 3058 mCb = cb; 3059 } 3060 3061 @Override 3062 public String toString() { 3063 return "{" + " url=" + mUrl + " mTimeOutMs=" + mTimeOutMs + " mCb=" + mCb + "}"; 3064 } 3065 } 3066 3067 // As explained to me by Brian Carlstrom and Kenny Root, Certificates can be 3068 // issued by name or ip address, for Google its by name so when we construct 3069 // this HostnameVerifier we'll pass the original Uri and use it to verify 3070 // the host. If the host name in the original uril fails we'll test the 3071 // hostname parameter just incase things change. 3072 static class CheckMpHostnameVerifier implements HostnameVerifier { 3073 Uri mOrgUri; 3074 3075 CheckMpHostnameVerifier(Uri orgUri) { 3076 mOrgUri = orgUri; 3077 } 3078 3079 @Override 3080 public boolean verify(String hostname, SSLSession session) { 3081 HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier(); 3082 String orgUriHost = mOrgUri.getHost(); 3083 boolean retVal = hv.verify(orgUriHost, session) || hv.verify(hostname, session); 3084 if (DBG) { 3085 log("isMobileOk: hostnameVerify retVal=" + retVal + " hostname=" + hostname 3086 + " orgUriHost=" + orgUriHost); 3087 } 3088 return retVal; 3089 } 3090 } 3091 3092 /** 3093 * The call back object passed in Params. onComplete will be called 3094 * on the main thread. 3095 */ 3096 abstract static class CallBack { 3097 // Called on the main thread. 3098 abstract void onComplete(Integer result); 3099 } 3100 3101 public CheckMp(Context context, ConnectivityService cs) { 3102 if (Build.IS_DEBUGGABLE) { 3103 mTestingFailures = 3104 SystemProperties.getInt("persist.checkmp.testfailures", 0) == 1; 3105 } else { 3106 mTestingFailures = false; 3107 } 3108 3109 mContext = context; 3110 mCs = cs; 3111 3112 // Setup access to TelephonyService we'll be using. 3113 mTm = (TelephonyManager) mContext.getSystemService( 3114 Context.TELEPHONY_SERVICE); 3115 } 3116 3117 /** 3118 * Get the default url to use for the test. 3119 */ 3120 public String getDefaultUrl() { 3121 // See http://go/clientsdns for usage approval 3122 String server = Settings.Global.getString(mContext.getContentResolver(), 3123 Settings.Global.CAPTIVE_PORTAL_SERVER); 3124 if (server == null) { 3125 server = "clients3.google.com"; 3126 } 3127 return "http://" + server + "/generate_204"; 3128 } 3129 3130 /** 3131 * Detect if its possible to connect to the http url. DNS based detection techniques 3132 * do not work at all hotspots. The best way to check is to perform a request to 3133 * a known address that fetches the data we expect. 3134 */ 3135 private synchronized Integer isMobileOk(Params params) { 3136 Integer result = CMP_RESULT_CODE_NO_CONNECTION; 3137 Uri orgUri = Uri.parse(params.mUrl); 3138 Random rand = new Random(); 3139 mParams = params; 3140 3141 if (mCs.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false) { 3142 result = CMP_RESULT_CODE_NO_CONNECTION; 3143 log("isMobileOk: X not mobile capable result=" + result); 3144 return result; 3145 } 3146 3147 if (mCs.mIsStartingProvisioning.get()) { 3148 result = CMP_RESULT_CODE_IS_PROVISIONING; 3149 log("isMobileOk: X is provisioning result=" + result); 3150 return result; 3151 } 3152 3153 // See if we've already determined we've got a provisioning connection, 3154 // if so we don't need to do anything active. 3155 MobileDataStateTracker mdstDefault = (MobileDataStateTracker) 3156 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3157 boolean isDefaultProvisioning = mdstDefault.isProvisioningNetwork(); 3158 log("isMobileOk: isDefaultProvisioning=" + isDefaultProvisioning); 3159 3160 MobileDataStateTracker mdstHipri = (MobileDataStateTracker) 3161 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3162 boolean isHipriProvisioning = mdstHipri.isProvisioningNetwork(); 3163 log("isMobileOk: isHipriProvisioning=" + isHipriProvisioning); 3164 3165 if (isDefaultProvisioning || isHipriProvisioning) { 3166 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3167 log("isMobileOk: X default || hipri is provisioning result=" + result); 3168 return result; 3169 } 3170 3171 try { 3172 // Continue trying to connect until time has run out 3173 long endTime = SystemClock.elapsedRealtime() + params.mTimeOutMs; 3174 3175 if (!mCs.isMobileDataStateTrackerReady()) { 3176 // Wait for MobileDataStateTracker to be ready. 3177 if (DBG) log("isMobileOk: mdst is not ready"); 3178 while(SystemClock.elapsedRealtime() < endTime) { 3179 if (mCs.isMobileDataStateTrackerReady()) { 3180 // Enable fail fast as we'll do retries here and use a 3181 // hipri connection so the default connection stays active. 3182 if (DBG) log("isMobileOk: mdst ready, enable fail fast of mobile data"); 3183 mCs.setEnableFailFastMobileData(DctConstants.ENABLED); 3184 break; 3185 } 3186 sleep(POLLING_SLEEP_SEC); 3187 } 3188 } 3189 3190 log("isMobileOk: start hipri url=" + params.mUrl); 3191 3192 // First wait until we can start using hipri 3193 Binder binder = new Binder(); 3194/* 3195 while(SystemClock.elapsedRealtime() < endTime) { 3196 int ret = mCs.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3197 Phone.FEATURE_ENABLE_HIPRI, binder); 3198 if ((ret == PhoneConstants.APN_ALREADY_ACTIVE) 3199 || (ret == PhoneConstants.APN_REQUEST_STARTED)) { 3200 log("isMobileOk: hipri started"); 3201 break; 3202 } 3203 if (VDBG) log("isMobileOk: hipri not started yet"); 3204 result = CMP_RESULT_CODE_NO_CONNECTION; 3205 sleep(POLLING_SLEEP_SEC); 3206 } 3207*/ 3208 // Continue trying to connect until time has run out 3209 while(SystemClock.elapsedRealtime() < endTime) { 3210 try { 3211 // Wait for hipri to connect. 3212 // TODO: Don't poll and handle situation where hipri fails 3213 // because default is retrying. See b/9569540 3214 NetworkInfo.State state = mCs 3215 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3216 if (state != NetworkInfo.State.CONNECTED) { 3217 if (true/*VDBG*/) { 3218 log("isMobileOk: not connected ni=" + 3219 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3220 } 3221 sleep(POLLING_SLEEP_SEC); 3222 result = CMP_RESULT_CODE_NO_CONNECTION; 3223 continue; 3224 } 3225 3226 // Hipri has started check if this is a provisioning url 3227 MobileDataStateTracker mdst = (MobileDataStateTracker) 3228 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3229 if (mdst.isProvisioningNetwork()) { 3230 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3231 if (DBG) log("isMobileOk: X isProvisioningNetwork result=" + result); 3232 return result; 3233 } else { 3234 if (DBG) log("isMobileOk: isProvisioningNetwork is false, continue"); 3235 } 3236 3237 // Get of the addresses associated with the url host. We need to use the 3238 // address otherwise HttpURLConnection object will use the name to get 3239 // the addresses and will try every address but that will bypass the 3240 // route to host we setup and the connection could succeed as the default 3241 // interface might be connected to the internet via wifi or other interface. 3242 InetAddress[] addresses; 3243 try { 3244 addresses = InetAddress.getAllByName(orgUri.getHost()); 3245 } catch (UnknownHostException e) { 3246 result = CMP_RESULT_CODE_NO_DNS; 3247 log("isMobileOk: X UnknownHostException result=" + result); 3248 return result; 3249 } 3250 log("isMobileOk: addresses=" + inetAddressesToString(addresses)); 3251 3252 // Get the type of addresses supported by this link 3253 LinkProperties lp = mCs.getLinkPropertiesForTypeInternal( 3254 ConnectivityManager.TYPE_MOBILE_HIPRI); 3255 boolean linkHasIpv4 = lp.hasIPv4Address(); 3256 boolean linkHasIpv6 = lp.hasGlobalIPv6Address(); 3257 log("isMobileOk: linkHasIpv4=" + linkHasIpv4 3258 + " linkHasIpv6=" + linkHasIpv6); 3259 3260 final ArrayList<InetAddress> validAddresses = 3261 new ArrayList<InetAddress>(addresses.length); 3262 3263 for (InetAddress addr : addresses) { 3264 if (((addr instanceof Inet4Address) && linkHasIpv4) || 3265 ((addr instanceof Inet6Address) && linkHasIpv6)) { 3266 validAddresses.add(addr); 3267 } 3268 } 3269 3270 if (validAddresses.size() == 0) { 3271 return CMP_RESULT_CODE_NO_CONNECTION; 3272 } 3273 3274 int addrTried = 0; 3275 while (true) { 3276 // Loop through at most MAX_LOOPS valid addresses or until 3277 // we run out of time 3278 if (addrTried++ >= MAX_LOOPS) { 3279 log("isMobileOk: too many loops tried - giving up"); 3280 break; 3281 } 3282 if (SystemClock.elapsedRealtime() >= endTime) { 3283 log("isMobileOk: spend too much time - giving up"); 3284 break; 3285 } 3286 3287 InetAddress hostAddr = validAddresses.get(rand.nextInt( 3288 validAddresses.size())); 3289 3290 // Make a route to host so we check the specific interface. 3291 if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI, 3292 hostAddr.getAddress())) { 3293 // Wait a short time to be sure the route is established ?? 3294 log("isMobileOk:" 3295 + " wait to establish route to hostAddr=" + hostAddr); 3296 sleep(NET_ROUTE_ESTABLISHMENT_SLEEP_SEC); 3297 } else { 3298 log("isMobileOk:" 3299 + " could not establish route to hostAddr=" + hostAddr); 3300 // Wait a short time before the next attempt 3301 sleep(NET_ERROR_SLEEP_SEC); 3302 continue; 3303 } 3304 3305 // Rewrite the url to have numeric address to use the specific route 3306 // using http for half the attempts and https for the other half. 3307 // Doing https first and http second as on a redirected walled garden 3308 // such as t-mobile uses we get a SocketTimeoutException: "SSL 3309 // handshake timed out" which we declare as 3310 // CMP_RESULT_CODE_NO_TCP_CONNECTION. We could change this, but by 3311 // having http second we will be using logic used for some time. 3312 URL newUrl; 3313 String scheme = (addrTried <= (MAX_LOOPS/2)) ? "https" : "http"; 3314 newUrl = new URL(scheme, hostAddr.getHostAddress(), 3315 orgUri.getPath()); 3316 log("isMobileOk: newUrl=" + newUrl); 3317 3318 HttpURLConnection urlConn = null; 3319 try { 3320 // Open the connection set the request headers and get the response 3321 urlConn = (HttpURLConnection)newUrl.openConnection( 3322 java.net.Proxy.NO_PROXY); 3323 if (scheme.equals("https")) { 3324 ((HttpsURLConnection)urlConn).setHostnameVerifier( 3325 new CheckMpHostnameVerifier(orgUri)); 3326 } 3327 urlConn.setInstanceFollowRedirects(false); 3328 urlConn.setConnectTimeout(SOCKET_TIMEOUT_MS); 3329 urlConn.setReadTimeout(SOCKET_TIMEOUT_MS); 3330 urlConn.setUseCaches(false); 3331 urlConn.setAllowUserInteraction(false); 3332 // Set the "Connection" to "Close" as by default "Keep-Alive" 3333 // is used which is useless in this case. 3334 urlConn.setRequestProperty("Connection", "close"); 3335 int responseCode = urlConn.getResponseCode(); 3336 3337 // For debug display the headers 3338 Map<String, List<String>> headers = urlConn.getHeaderFields(); 3339 log("isMobileOk: headers=" + headers); 3340 3341 // Close the connection 3342 urlConn.disconnect(); 3343 urlConn = null; 3344 3345 if (mTestingFailures) { 3346 // Pretend no connection, this tests using http and https 3347 result = CMP_RESULT_CODE_NO_CONNECTION; 3348 log("isMobileOk: TESTING_FAILURES, pretend no connction"); 3349 continue; 3350 } 3351 3352 if (responseCode == 204) { 3353 // Return 3354 result = CMP_RESULT_CODE_CONNECTABLE; 3355 log("isMobileOk: X got expected responseCode=" + responseCode 3356 + " result=" + result); 3357 return result; 3358 } else { 3359 // Retry to be sure this was redirected, we've gotten 3360 // occasions where a server returned 200 even though 3361 // the device didn't have a "warm" sim. 3362 log("isMobileOk: not expected responseCode=" + responseCode); 3363 // TODO - it would be nice in the single-address case to do 3364 // another DNS resolve here, but flushing the cache is a bit 3365 // heavy-handed. 3366 result = CMP_RESULT_CODE_REDIRECTED; 3367 } 3368 } catch (Exception e) { 3369 log("isMobileOk: HttpURLConnection Exception" + e); 3370 result = CMP_RESULT_CODE_NO_TCP_CONNECTION; 3371 if (urlConn != null) { 3372 urlConn.disconnect(); 3373 urlConn = null; 3374 } 3375 sleep(NET_ERROR_SLEEP_SEC); 3376 continue; 3377 } 3378 } 3379 log("isMobileOk: X loops|timed out result=" + result); 3380 return result; 3381 } catch (Exception e) { 3382 log("isMobileOk: Exception e=" + e); 3383 continue; 3384 } 3385 } 3386 log("isMobileOk: timed out"); 3387 } finally { 3388 log("isMobileOk: F stop hipri"); 3389 mCs.setEnableFailFastMobileData(DctConstants.DISABLED); 3390// mCs.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3391// Phone.FEATURE_ENABLE_HIPRI); 3392 3393 // Wait for hipri to disconnect. 3394 long endTime = SystemClock.elapsedRealtime() + 5000; 3395 3396 while(SystemClock.elapsedRealtime() < endTime) { 3397 NetworkInfo.State state = mCs 3398 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3399 if (state != NetworkInfo.State.DISCONNECTED) { 3400 if (VDBG) { 3401 log("isMobileOk: connected ni=" + 3402 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3403 } 3404 sleep(POLLING_SLEEP_SEC); 3405 continue; 3406 } 3407 } 3408 3409 log("isMobileOk: X result=" + result); 3410 } 3411 return result; 3412 } 3413 3414 @Override 3415 protected Integer doInBackground(Params... params) { 3416 return isMobileOk(params[0]); 3417 } 3418 3419 @Override 3420 protected void onPostExecute(Integer result) { 3421 log("onPostExecute: result=" + result); 3422 if ((mParams != null) && (mParams.mCb != null)) { 3423 mParams.mCb.onComplete(result); 3424 } 3425 } 3426 3427 private String inetAddressesToString(InetAddress[] addresses) { 3428 StringBuffer sb = new StringBuffer(); 3429 boolean firstTime = true; 3430 for(InetAddress addr : addresses) { 3431 if (firstTime) { 3432 firstTime = false; 3433 } else { 3434 sb.append(","); 3435 } 3436 sb.append(addr); 3437 } 3438 return sb.toString(); 3439 } 3440 3441 private void printNetworkInfo() { 3442 boolean hasIccCard = mTm.hasIccCard(); 3443 int simState = mTm.getSimState(); 3444 log("hasIccCard=" + hasIccCard 3445 + " simState=" + simState); 3446 NetworkInfo[] ni = mCs.getAllNetworkInfo(); 3447 if (ni != null) { 3448 log("ni.length=" + ni.length); 3449 for (NetworkInfo netInfo: ni) { 3450 log("netInfo=" + netInfo.toString()); 3451 } 3452 } else { 3453 log("no network info ni=null"); 3454 } 3455 } 3456 3457 /** 3458 * Sleep for a few seconds then return. 3459 * @param seconds 3460 */ 3461 private static void sleep(int seconds) { 3462 long stopTime = System.nanoTime() + (seconds * 1000000000); 3463 long sleepTime; 3464 while ((sleepTime = stopTime - System.nanoTime()) > 0) { 3465 try { 3466 Thread.sleep(sleepTime / 1000000); 3467 } catch (InterruptedException ignored) { 3468 } 3469 } 3470 } 3471 3472 private static void log(String s) { 3473 Slog.d(ConnectivityService.TAG, "[" + CHECKMP_TAG + "] " + s); 3474 } 3475 } 3476 3477 // TODO: Move to ConnectivityManager and make public? 3478 private static final String CONNECTED_TO_PROVISIONING_NETWORK_ACTION = 3479 "com.android.server.connectivityservice.CONNECTED_TO_PROVISIONING_NETWORK_ACTION"; 3480 3481 private BroadcastReceiver mProvisioningReceiver = new BroadcastReceiver() { 3482 @Override 3483 public void onReceive(Context context, Intent intent) { 3484 if (intent.getAction().equals(CONNECTED_TO_PROVISIONING_NETWORK_ACTION)) { 3485 handleMobileProvisioningAction(intent.getStringExtra("EXTRA_URL")); 3486 } 3487 } 3488 }; 3489 3490 private void handleMobileProvisioningAction(String url) { 3491 // Mark notification as not visible 3492 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3493 3494 // Check airplane mode 3495 boolean isAirplaneModeOn = Settings.System.getInt(mContext.getContentResolver(), 3496 Settings.Global.AIRPLANE_MODE_ON, 0) == 1; 3497 // If provisioning network and not in airplane mode handle as a special case, 3498 // otherwise launch browser with the intent directly. 3499 if (mIsProvisioningNetwork.get() && !isAirplaneModeOn) { 3500 if (DBG) log("handleMobileProvisioningAction: on prov network enable then launch"); 3501 mIsProvisioningNetwork.set(false); 3502// mIsStartingProvisioning.set(true); 3503// MobileDataStateTracker mdst = (MobileDataStateTracker) 3504// mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3505 // Radio was disabled on CMP_RESULT_CODE_PROVISIONING_NETWORK, enable it here 3506// mdst.setRadio(true); 3507// mdst.setEnableFailFastMobileData(DctConstants.ENABLED); 3508// mdst.enableMobileProvisioning(url); 3509 } else { 3510 if (DBG) log("handleMobileProvisioningAction: not prov network"); 3511 mIsProvisioningNetwork.set(false); 3512 // Check for apps that can handle provisioning first 3513 Intent provisioningIntent = new Intent(TelephonyIntents.ACTION_CARRIER_SETUP); 3514 provisioningIntent.addCategory(TelephonyIntents.CATEGORY_MCCMNC_PREFIX 3515 + mTelephonyManager.getSimOperator()); 3516 if (mContext.getPackageManager().resolveActivity(provisioningIntent, 0 /* flags */) 3517 != null) { 3518 provisioningIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3519 Intent.FLAG_ACTIVITY_NEW_TASK); 3520 mContext.startActivity(provisioningIntent); 3521 } else { 3522 // If no apps exist, use standard URL ACTION_VIEW method 3523 Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, 3524 Intent.CATEGORY_APP_BROWSER); 3525 newIntent.setData(Uri.parse(url)); 3526 newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3527 Intent.FLAG_ACTIVITY_NEW_TASK); 3528 try { 3529 mContext.startActivity(newIntent); 3530 } catch (ActivityNotFoundException e) { 3531 loge("handleMobileProvisioningAction: startActivity failed" + e); 3532 } 3533 } 3534 } 3535 } 3536 3537 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 3538 private volatile boolean mIsNotificationVisible = false; 3539 3540 private void setProvNotificationVisible(boolean visible, int networkType, String extraInfo, 3541 String url) { 3542 if (DBG) { 3543 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 3544 + " extraInfo=" + extraInfo + " url=" + url); 3545 } 3546 Intent intent = null; 3547 PendingIntent pendingIntent = null; 3548 if (visible) { 3549 switch (networkType) { 3550 case ConnectivityManager.TYPE_WIFI: 3551 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3552 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3553 Intent.FLAG_ACTIVITY_NEW_TASK); 3554 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3555 break; 3556 case ConnectivityManager.TYPE_MOBILE: 3557 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3558 intent = new Intent(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 3559 intent.putExtra("EXTRA_URL", url); 3560 intent.setFlags(0); 3561 pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 3562 break; 3563 default: 3564 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3565 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3566 Intent.FLAG_ACTIVITY_NEW_TASK); 3567 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3568 break; 3569 } 3570 } 3571 // Concatenate the range of types onto the range of NetIDs. 3572 int id = MAX_NET_ID + 1 + (networkType - ConnectivityManager.TYPE_NONE); 3573 setProvNotificationVisibleIntent(visible, id, networkType, extraInfo, pendingIntent); 3574 } 3575 3576 /** 3577 * Show or hide network provisioning notificaitons. 3578 * 3579 * @param id an identifier that uniquely identifies this notification. This must match 3580 * between show and hide calls. We use the NetID value but for legacy callers 3581 * we concatenate the range of types with the range of NetIDs. 3582 */ 3583 private void setProvNotificationVisibleIntent(boolean visible, int id, int networkType, 3584 String extraInfo, PendingIntent intent) { 3585 if (DBG) { 3586 log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + 3587 networkType + " extraInfo=" + extraInfo); 3588 } 3589 3590 Resources r = Resources.getSystem(); 3591 NotificationManager notificationManager = (NotificationManager) mContext 3592 .getSystemService(Context.NOTIFICATION_SERVICE); 3593 3594 if (visible) { 3595 CharSequence title; 3596 CharSequence details; 3597 int icon; 3598 Notification notification = new Notification(); 3599 switch (networkType) { 3600 case ConnectivityManager.TYPE_WIFI: 3601 title = r.getString(R.string.wifi_available_sign_in, 0); 3602 details = r.getString(R.string.network_available_sign_in_detailed, 3603 extraInfo); 3604 icon = R.drawable.stat_notify_wifi_in_range; 3605 break; 3606 case ConnectivityManager.TYPE_MOBILE: 3607 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3608 title = r.getString(R.string.network_available_sign_in, 0); 3609 // TODO: Change this to pull from NetworkInfo once a printable 3610 // name has been added to it 3611 details = mTelephonyManager.getNetworkOperatorName(); 3612 icon = R.drawable.stat_notify_rssi_in_range; 3613 break; 3614 default: 3615 title = r.getString(R.string.network_available_sign_in, 0); 3616 details = r.getString(R.string.network_available_sign_in_detailed, 3617 extraInfo); 3618 icon = R.drawable.stat_notify_rssi_in_range; 3619 break; 3620 } 3621 3622 notification.when = 0; 3623 notification.icon = icon; 3624 notification.flags = Notification.FLAG_AUTO_CANCEL; 3625 notification.tickerText = title; 3626 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 3627 notification.contentIntent = intent; 3628 3629 try { 3630 notificationManager.notify(NOTIFICATION_ID, id, notification); 3631 } catch (NullPointerException npe) { 3632 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 3633 npe.printStackTrace(); 3634 } 3635 } else { 3636 try { 3637 notificationManager.cancel(NOTIFICATION_ID, id); 3638 } catch (NullPointerException npe) { 3639 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 3640 npe.printStackTrace(); 3641 } 3642 } 3643 mIsNotificationVisible = visible; 3644 } 3645 3646 /** Location to an updatable file listing carrier provisioning urls. 3647 * An example: 3648 * 3649 * <?xml version="1.0" encoding="utf-8"?> 3650 * <provisioningUrls> 3651 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 3652 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 3653 * </provisioningUrls> 3654 */ 3655 private static final String PROVISIONING_URL_PATH = 3656 "/data/misc/radio/provisioning_urls.xml"; 3657 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 3658 3659 /** XML tag for root element. */ 3660 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 3661 /** XML tag for individual url */ 3662 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 3663 /** XML tag for redirected url */ 3664 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 3665 /** XML attribute for mcc */ 3666 private static final String ATTR_MCC = "mcc"; 3667 /** XML attribute for mnc */ 3668 private static final String ATTR_MNC = "mnc"; 3669 3670 private static final int REDIRECTED_PROVISIONING = 1; 3671 private static final int PROVISIONING = 2; 3672 3673 private String getProvisioningUrlBaseFromFile(int type) { 3674 FileReader fileReader = null; 3675 XmlPullParser parser = null; 3676 Configuration config = mContext.getResources().getConfiguration(); 3677 String tagType; 3678 3679 switch (type) { 3680 case PROVISIONING: 3681 tagType = TAG_PROVISIONING_URL; 3682 break; 3683 case REDIRECTED_PROVISIONING: 3684 tagType = TAG_REDIRECTED_URL; 3685 break; 3686 default: 3687 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 3688 type); 3689 } 3690 3691 try { 3692 fileReader = new FileReader(mProvisioningUrlFile); 3693 parser = Xml.newPullParser(); 3694 parser.setInput(fileReader); 3695 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 3696 3697 while (true) { 3698 XmlUtils.nextElement(parser); 3699 3700 String element = parser.getName(); 3701 if (element == null) break; 3702 3703 if (element.equals(tagType)) { 3704 String mcc = parser.getAttributeValue(null, ATTR_MCC); 3705 try { 3706 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 3707 String mnc = parser.getAttributeValue(null, ATTR_MNC); 3708 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 3709 parser.next(); 3710 if (parser.getEventType() == XmlPullParser.TEXT) { 3711 return parser.getText(); 3712 } 3713 } 3714 } 3715 } catch (NumberFormatException e) { 3716 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 3717 } 3718 } 3719 } 3720 return null; 3721 } catch (FileNotFoundException e) { 3722 loge("Carrier Provisioning Urls file not found"); 3723 } catch (XmlPullParserException e) { 3724 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 3725 } catch (IOException e) { 3726 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 3727 } finally { 3728 if (fileReader != null) { 3729 try { 3730 fileReader.close(); 3731 } catch (IOException e) {} 3732 } 3733 } 3734 return null; 3735 } 3736 3737 @Override 3738 public String getMobileRedirectedProvisioningUrl() { 3739 enforceConnectivityInternalPermission(); 3740 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 3741 if (TextUtils.isEmpty(url)) { 3742 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 3743 } 3744 return url; 3745 } 3746 3747 @Override 3748 public String getMobileProvisioningUrl() { 3749 enforceConnectivityInternalPermission(); 3750 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 3751 if (TextUtils.isEmpty(url)) { 3752 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 3753 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 3754 } else { 3755 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 3756 } 3757 // populate the iccid, imei and phone number in the provisioning url. 3758 if (!TextUtils.isEmpty(url)) { 3759 String phoneNumber = mTelephonyManager.getLine1Number(); 3760 if (TextUtils.isEmpty(phoneNumber)) { 3761 phoneNumber = "0000000000"; 3762 } 3763 url = String.format(url, 3764 mTelephonyManager.getSimSerialNumber() /* ICCID */, 3765 mTelephonyManager.getDeviceId() /* IMEI */, 3766 phoneNumber /* Phone numer */); 3767 } 3768 3769 return url; 3770 } 3771 3772 @Override 3773 public void setProvisioningNotificationVisible(boolean visible, int networkType, 3774 String extraInfo, String url) { 3775 enforceConnectivityInternalPermission(); 3776 setProvNotificationVisible(visible, networkType, extraInfo, url); 3777 } 3778 3779 @Override 3780 public void setAirplaneMode(boolean enable) { 3781 enforceConnectivityInternalPermission(); 3782 final long ident = Binder.clearCallingIdentity(); 3783 try { 3784 final ContentResolver cr = mContext.getContentResolver(); 3785 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 3786 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 3787 intent.putExtra("state", enable); 3788 mContext.sendBroadcast(intent); 3789 } finally { 3790 Binder.restoreCallingIdentity(ident); 3791 } 3792 } 3793 3794 private void onUserStart(int userId) { 3795 synchronized(mVpns) { 3796 Vpn userVpn = mVpns.get(userId); 3797 if (userVpn != null) { 3798 loge("Starting user already has a VPN"); 3799 return; 3800 } 3801 userVpn = new Vpn(mHandler.getLooper(), mContext, mNetd, this, userId); 3802 mVpns.put(userId, userVpn); 3803 } 3804 } 3805 3806 private void onUserStop(int userId) { 3807 synchronized(mVpns) { 3808 Vpn userVpn = mVpns.get(userId); 3809 if (userVpn == null) { 3810 loge("Stopping user has no VPN"); 3811 return; 3812 } 3813 mVpns.delete(userId); 3814 } 3815 } 3816 3817 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 3818 @Override 3819 public void onReceive(Context context, Intent intent) { 3820 final String action = intent.getAction(); 3821 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3822 if (userId == UserHandle.USER_NULL) return; 3823 3824 if (Intent.ACTION_USER_STARTING.equals(action)) { 3825 onUserStart(userId); 3826 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 3827 onUserStop(userId); 3828 } 3829 } 3830 }; 3831 3832 @Override 3833 public LinkQualityInfo getLinkQualityInfo(int networkType) { 3834 enforceAccessPermission(); 3835 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 3836 return mNetTrackers[networkType].getLinkQualityInfo(); 3837 } else { 3838 return null; 3839 } 3840 } 3841 3842 @Override 3843 public LinkQualityInfo getActiveLinkQualityInfo() { 3844 enforceAccessPermission(); 3845 if (isNetworkTypeValid(mActiveDefaultNetwork) && 3846 mNetTrackers[mActiveDefaultNetwork] != null) { 3847 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 3848 } else { 3849 return null; 3850 } 3851 } 3852 3853 @Override 3854 public LinkQualityInfo[] getAllLinkQualityInfo() { 3855 enforceAccessPermission(); 3856 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 3857 for (NetworkStateTracker tracker : mNetTrackers) { 3858 if (tracker != null) { 3859 LinkQualityInfo li = tracker.getLinkQualityInfo(); 3860 if (li != null) { 3861 result.add(li); 3862 } 3863 } 3864 } 3865 3866 return result.toArray(new LinkQualityInfo[result.size()]); 3867 } 3868 3869 /* Infrastructure for network sampling */ 3870 3871 private void handleNetworkSamplingTimeout() { 3872 3873 log("Sampling interval elapsed, updating statistics .."); 3874 3875 // initialize list of interfaces .. 3876 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 3877 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 3878 for (NetworkStateTracker tracker : mNetTrackers) { 3879 if (tracker != null) { 3880 String ifaceName = tracker.getNetworkInterfaceName(); 3881 if (ifaceName != null) { 3882 mapIfaceToSample.put(ifaceName, null); 3883 } 3884 } 3885 } 3886 3887 // Read samples for all interfaces 3888 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 3889 3890 // process samples for all networks 3891 for (NetworkStateTracker tracker : mNetTrackers) { 3892 if (tracker != null) { 3893 String ifaceName = tracker.getNetworkInterfaceName(); 3894 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 3895 if (ss != null) { 3896 // end the previous sampling cycle 3897 tracker.stopSampling(ss); 3898 // start a new sampling cycle .. 3899 tracker.startSampling(ss); 3900 } 3901 } 3902 } 3903 3904 log("Done."); 3905 3906 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 3907 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 3908 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 3909 3910 if (DBG) log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 3911 3912 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 3913 } 3914 3915 /** 3916 * Sets a network sampling alarm. 3917 */ 3918 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 3919 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 3920 int alarmType; 3921 if (Resources.getSystem().getBoolean( 3922 R.bool.config_networkSamplingWakesDevice)) { 3923 alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP; 3924 } else { 3925 alarmType = AlarmManager.ELAPSED_REALTIME; 3926 } 3927 mAlarmManager.set(alarmType, wakeupTime, intent); 3928 } 3929 3930 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 3931 new HashMap<Messenger, NetworkFactoryInfo>(); 3932 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 3933 new HashMap<NetworkRequest, NetworkRequestInfo>(); 3934 3935 private static class NetworkFactoryInfo { 3936 public final String name; 3937 public final Messenger messenger; 3938 public final AsyncChannel asyncChannel; 3939 3940 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 3941 this.name = name; 3942 this.messenger = messenger; 3943 this.asyncChannel = asyncChannel; 3944 } 3945 } 3946 3947 /** 3948 * Tracks info about the requester. 3949 * Also used to notice when the calling process dies so we can self-expire 3950 */ 3951 private class NetworkRequestInfo implements IBinder.DeathRecipient { 3952 static final boolean REQUEST = true; 3953 static final boolean LISTEN = false; 3954 3955 final NetworkRequest request; 3956 IBinder mBinder; 3957 final int mPid; 3958 final int mUid; 3959 final Messenger messenger; 3960 final boolean isRequest; 3961 3962 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 3963 super(); 3964 messenger = m; 3965 request = r; 3966 mBinder = binder; 3967 mPid = getCallingPid(); 3968 mUid = getCallingUid(); 3969 this.isRequest = isRequest; 3970 3971 try { 3972 mBinder.linkToDeath(this, 0); 3973 } catch (RemoteException e) { 3974 binderDied(); 3975 } 3976 } 3977 3978 void unlinkDeathRecipient() { 3979 mBinder.unlinkToDeath(this, 0); 3980 } 3981 3982 public void binderDied() { 3983 log("ConnectivityService NetworkRequestInfo binderDied(" + 3984 request + ", " + mBinder + ")"); 3985 releaseNetworkRequest(request); 3986 } 3987 3988 public String toString() { 3989 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 3990 mPid + " for " + request; 3991 } 3992 } 3993 3994 @Override 3995 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 3996 Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { 3997 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 3998 == false) { 3999 enforceConnectivityInternalPermission(); 4000 } else { 4001 enforceChangePermission(); 4002 } 4003 4004 networkCapabilities = new NetworkCapabilities(networkCapabilities); 4005 4006 // if UID is restricted, don't allow them to bring up metered APNs 4007 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED) 4008 == false) { 4009 final int uidRules; 4010 synchronized(mRulesLock) { 4011 uidRules = mUidRules.get(Binder.getCallingUid(), RULE_ALLOW_ALL); 4012 } 4013 if ((uidRules & RULE_REJECT_METERED) != 0) { 4014 // we could silently fail or we can filter the available nets to only give 4015 // them those they have access to. Chose the more useful 4016 networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 4017 } 4018 } 4019 4020 if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { 4021 throw new IllegalArgumentException("Bad timeout specified"); 4022 } 4023 NetworkRequest networkRequest = new NetworkRequest(networkCapabilities, legacyType, 4024 nextNetworkRequestId()); 4025 if (DBG) log("requestNetwork for " + networkRequest); 4026 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4027 NetworkRequestInfo.REQUEST); 4028 4029 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 4030 if (timeoutMs > 0) { 4031 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 4032 nri), timeoutMs); 4033 } 4034 return networkRequest; 4035 } 4036 4037 @Override 4038 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 4039 PendingIntent operation) { 4040 // TODO 4041 return null; 4042 } 4043 4044 @Override 4045 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 4046 Messenger messenger, IBinder binder) { 4047 enforceAccessPermission(); 4048 4049 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 4050 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 4051 if (DBG) log("listenForNetwork for " + networkRequest); 4052 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4053 NetworkRequestInfo.LISTEN); 4054 4055 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 4056 return networkRequest; 4057 } 4058 4059 @Override 4060 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 4061 PendingIntent operation) { 4062 } 4063 4064 @Override 4065 public void releaseNetworkRequest(NetworkRequest networkRequest) { 4066 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), 4067 0, networkRequest)); 4068 } 4069 4070 @Override 4071 public void registerNetworkFactory(Messenger messenger, String name) { 4072 enforceConnectivityInternalPermission(); 4073 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 4074 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 4075 } 4076 4077 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 4078 if (VDBG) log("Got NetworkFactory Messenger for " + nfi.name); 4079 mNetworkFactoryInfos.put(nfi.messenger, nfi); 4080 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 4081 } 4082 4083 @Override 4084 public void unregisterNetworkFactory(Messenger messenger) { 4085 enforceConnectivityInternalPermission(); 4086 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 4087 } 4088 4089 private void handleUnregisterNetworkFactory(Messenger messenger) { 4090 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 4091 if (nfi == null) { 4092 if (VDBG) log("Failed to find Messenger in unregisterNetworkFactory"); 4093 return; 4094 } 4095 if (VDBG) log("unregisterNetworkFactory for " + nfi.name); 4096 } 4097 4098 /** 4099 * NetworkAgentInfo supporting a request by requestId. 4100 * These have already been vetted (their Capabilities satisfy the request) 4101 * and the are the highest scored network available. 4102 * the are keyed off the Requests requestId. 4103 */ 4104 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 4105 new SparseArray<NetworkAgentInfo>(); 4106 4107 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 4108 new SparseArray<NetworkAgentInfo>(); 4109 4110 // NetworkAgentInfo keyed off its connecting messenger 4111 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 4112 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 4113 new HashMap<Messenger, NetworkAgentInfo>(); 4114 4115 private final NetworkRequest mDefaultRequest; 4116 4117 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 4118 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 4119 } 4120 4121 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 4122 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 4123 int currentScore, NetworkMisc networkMisc) { 4124 enforceConnectivityInternalPermission(); 4125 4126 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), nextNetId(), 4127 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 4128 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler, 4129 networkMisc); 4130 synchronized (this) { 4131 nai.networkMonitor.systemReady = mSystemReady; 4132 } 4133 if (VDBG) log("registerNetworkAgent " + nai); 4134 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 4135 } 4136 4137 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 4138 if (VDBG) log("Got NetworkAgent Messenger"); 4139 mNetworkAgentInfos.put(na.messenger, na); 4140 synchronized (mNetworkForNetId) { 4141 mNetworkForNetId.put(na.network.netId, na); 4142 } 4143 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 4144 NetworkInfo networkInfo = na.networkInfo; 4145 na.networkInfo = null; 4146 updateNetworkInfo(na, networkInfo); 4147 } 4148 4149 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 4150 LinkProperties newLp = networkAgent.linkProperties; 4151 int netId = networkAgent.network.netId; 4152 4153 updateInterfaces(newLp, oldLp, netId); 4154 updateMtu(newLp, oldLp); 4155 // TODO - figure out what to do for clat 4156// for (LinkProperties lp : newLp.getStackedLinks()) { 4157// updateMtu(lp, null); 4158// } 4159 final boolean flushDns = updateRoutes(newLp, oldLp, netId); 4160 updateDnses(newLp, oldLp, netId, flushDns); 4161 updateClat(newLp, oldLp, networkAgent); 4162 } 4163 4164 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { 4165 // Update 464xlat state. 4166 if (mClat.requiresClat(na)) { 4167 4168 // If the connection was previously using clat, but is not using it now, stop the clat 4169 // daemon. Normally, this happens automatically when the connection disconnects, but if 4170 // the disconnect is not reported, or if the connection's LinkProperties changed for 4171 // some other reason (e.g., handoff changes the IP addresses on the link), it would 4172 // still be running. If it's not running, then stopping it is a no-op. 4173 if (Nat464Xlat.isRunningClat(oldLp) && !Nat464Xlat.isRunningClat(newLp)) { 4174 mClat.stopClat(); 4175 } 4176 // If the link requires clat to be running, then start the daemon now. 4177 if (na.networkInfo.isConnected()) { 4178 mClat.startClat(na); 4179 } else { 4180 mClat.stopClat(); 4181 } 4182 } 4183 } 4184 4185 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 4186 CompareResult<String> interfaceDiff = new CompareResult<String>(); 4187 if (oldLp != null) { 4188 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 4189 } else if (newLp != null) { 4190 interfaceDiff.added = newLp.getAllInterfaceNames(); 4191 } 4192 for (String iface : interfaceDiff.added) { 4193 try { 4194 mNetd.addInterfaceToNetwork(iface, netId); 4195 } catch (Exception e) { 4196 loge("Exception adding interface: " + e); 4197 } 4198 } 4199 for (String iface : interfaceDiff.removed) { 4200 try { 4201 mNetd.removeInterfaceFromNetwork(iface, netId); 4202 } catch (Exception e) { 4203 loge("Exception removing interface: " + e); 4204 } 4205 } 4206 } 4207 4208 /** 4209 * Have netd update routes from oldLp to newLp. 4210 * @return true if routes changed between oldLp and newLp 4211 */ 4212 private boolean updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 4213 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 4214 if (oldLp != null) { 4215 routeDiff = oldLp.compareAllRoutes(newLp); 4216 } else if (newLp != null) { 4217 routeDiff.added = newLp.getAllRoutes(); 4218 } 4219 4220 // add routes before removing old in case it helps with continuous connectivity 4221 4222 // do this twice, adding non-nexthop routes first, then routes they are dependent on 4223 for (RouteInfo route : routeDiff.added) { 4224 if (route.hasGateway()) continue; 4225 try { 4226 mNetd.addRoute(netId, route); 4227 } catch (Exception e) { 4228 loge("Exception in addRoute for non-gateway: " + e); 4229 } 4230 } 4231 for (RouteInfo route : routeDiff.added) { 4232 if (route.hasGateway() == false) continue; 4233 try { 4234 mNetd.addRoute(netId, route); 4235 } catch (Exception e) { 4236 loge("Exception in addRoute for gateway: " + e); 4237 } 4238 } 4239 4240 for (RouteInfo route : routeDiff.removed) { 4241 try { 4242 mNetd.removeRoute(netId, route); 4243 } catch (Exception e) { 4244 loge("Exception in removeRoute: " + e); 4245 } 4246 } 4247 return !routeDiff.added.isEmpty() || !routeDiff.removed.isEmpty(); 4248 } 4249 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId, boolean flush) { 4250 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 4251 Collection<InetAddress> dnses = newLp.getDnsServers(); 4252 if (dnses.size() == 0 && mDefaultDns != null) { 4253 dnses = new ArrayList(); 4254 dnses.add(mDefaultDns); 4255 if (DBG) { 4256 loge("no dns provided for netId " + netId + ", so using defaults"); 4257 } 4258 } 4259 try { 4260 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 4261 newLp.getDomains()); 4262 } catch (Exception e) { 4263 loge("Exception in setDnsServersForNetwork: " + e); 4264 } 4265 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 4266 if (defaultNai != null && defaultNai.network.netId == netId) { 4267 setDefaultDnsSystemProperties(dnses); 4268 } 4269 flushVmDnsCache(); 4270 } else if (flush) { 4271 try { 4272 mNetd.flushNetworkDnsCache(netId); 4273 } catch (Exception e) { 4274 loge("Exception in flushNetworkDnsCache: " + e); 4275 } 4276 flushVmDnsCache(); 4277 } 4278 } 4279 4280 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 4281 int last = 0; 4282 for (InetAddress dns : dnses) { 4283 ++last; 4284 String key = "net.dns" + last; 4285 String value = dns.getHostAddress(); 4286 SystemProperties.set(key, value); 4287 } 4288 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 4289 String key = "net.dns" + i; 4290 SystemProperties.set(key, ""); 4291 } 4292 mNumDnsEntries = last; 4293 } 4294 4295 4296 private void updateCapabilities(NetworkAgentInfo networkAgent, 4297 NetworkCapabilities networkCapabilities) { 4298 // TODO - what else here? Verify still satisfies everybody? 4299 // Check if satisfies somebody new? call callbacks? 4300 synchronized (networkAgent) { 4301 networkAgent.networkCapabilities = networkCapabilities; 4302 } 4303 } 4304 4305 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 4306 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 4307 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 4308 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 4309 networkRequest); 4310 } 4311 } 4312 4313 private void callCallbackForRequest(NetworkRequestInfo nri, 4314 NetworkAgentInfo networkAgent, int notificationType) { 4315 if (nri.messenger == null) return; // Default request has no msgr 4316 Object o; 4317 int a1 = 0; 4318 int a2 = 0; 4319 switch (notificationType) { 4320 case ConnectivityManager.CALLBACK_LOSING: 4321 a1 = 30 * 1000; // TODO - read this from NetworkMonitor 4322 // fall through 4323 case ConnectivityManager.CALLBACK_PRECHECK: 4324 case ConnectivityManager.CALLBACK_AVAILABLE: 4325 case ConnectivityManager.CALLBACK_LOST: 4326 case ConnectivityManager.CALLBACK_CAP_CHANGED: 4327 case ConnectivityManager.CALLBACK_IP_CHANGED: { 4328 o = new NetworkRequest(nri.request); 4329 a2 = networkAgent.network.netId; 4330 break; 4331 } 4332 case ConnectivityManager.CALLBACK_UNAVAIL: 4333 case ConnectivityManager.CALLBACK_RELEASED: { 4334 o = new NetworkRequest(nri.request); 4335 break; 4336 } 4337 default: { 4338 loge("Unknown notificationType " + notificationType); 4339 return; 4340 } 4341 } 4342 Message msg = Message.obtain(); 4343 msg.arg1 = a1; 4344 msg.arg2 = a2; 4345 msg.obj = o; 4346 msg.what = notificationType; 4347 try { 4348 if (VDBG) log("sending notification " + notificationType + " for " + nri.request); 4349 nri.messenger.send(msg); 4350 } catch (RemoteException e) { 4351 // may occur naturally in the race of binder death. 4352 loge("RemoteException caught trying to send a callback msg for " + nri.request); 4353 } 4354 } 4355 4356 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 4357 if (oldNetwork == null) { 4358 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 4359 return; 4360 } 4361 if (DBG) log("handleLingerComplete for " + oldNetwork.name()); 4362 if (DBG) { 4363 if (oldNetwork.networkRequests.size() != 0) { 4364 loge("Dead network still had " + oldNetwork.networkRequests.size() + " requests"); 4365 } 4366 } 4367 oldNetwork.asyncChannel.disconnect(); 4368 } 4369 4370 private void makeDefault(NetworkAgentInfo newNetwork) { 4371 if (VDBG) log("Switching to new default network: " + newNetwork); 4372 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4373 setupDataActivityTracking(newNetwork); 4374 try { 4375 mNetd.setDefaultNetId(newNetwork.network.netId); 4376 } catch (Exception e) { 4377 loge("Exception setting default network :" + e); 4378 } 4379 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 4380 } 4381 4382 private void handleConnectionValidated(NetworkAgentInfo newNetwork) { 4383 if (newNetwork == null) { 4384 loge("Unknown NetworkAgentInfo in handleConnectionValidated"); 4385 return; 4386 } 4387 boolean keep = newNetwork.isVPN(); 4388 boolean isNewDefault = false; 4389 if (DBG) log("handleConnectionValidated for "+newNetwork.name()); 4390 // check if any NetworkRequest wants this NetworkAgent 4391 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 4392 if (VDBG) log(" new Network has: " + newNetwork.networkCapabilities); 4393 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 4394 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 4395 if (newNetwork == currentNetwork) { 4396 if (VDBG) log("Network " + newNetwork.name() + " was already satisfying" + 4397 " request " + nri.request.requestId + ". No change."); 4398 keep = true; 4399 continue; 4400 } 4401 4402 // check if it satisfies the NetworkCapabilities 4403 if (VDBG) log(" checking if request is satisfied: " + nri.request); 4404 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 4405 newNetwork.networkCapabilities)) { 4406 // next check if it's better than any current network we're using for 4407 // this request 4408 if (VDBG) { 4409 log("currentScore = " + 4410 (currentNetwork != null ? currentNetwork.currentScore : 0) + 4411 ", newScore = " + newNetwork.currentScore); 4412 } 4413 if (currentNetwork == null || 4414 currentNetwork.currentScore < newNetwork.currentScore) { 4415 if (currentNetwork != null) { 4416 if (VDBG) log(" accepting network in place of " + currentNetwork.name()); 4417 currentNetwork.networkRequests.remove(nri.request.requestId); 4418 currentNetwork.networkLingered.add(nri.request); 4419 affectedNetworks.add(currentNetwork); 4420 } else { 4421 if (VDBG) log(" accepting network in place of null"); 4422 } 4423 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 4424 newNetwork.addRequest(nri.request); 4425 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 4426 mLegacyTypeTracker.add(nri.request.legacyType, newNetwork); 4427 } 4428 keep = true; 4429 // TODO - this could get expensive if we have alot of requests for this 4430 // network. Think about if there is a way to reduce this. Push 4431 // netid->request mapping to each factory? 4432 sendUpdatedScoreToFactories(nri.request, newNetwork.currentScore); 4433 if (mDefaultRequest.requestId == nri.request.requestId) { 4434 isNewDefault = true; 4435 updateActiveDefaultNetwork(newNetwork); 4436 if (newNetwork.linkProperties != null) { 4437 setDefaultDnsSystemProperties( 4438 newNetwork.linkProperties.getDnsServers()); 4439 } else { 4440 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 4441 } 4442 // Maintain the illusion: since the legacy API only 4443 // understands one network at a time, we must pretend 4444 // that the current default network disconnected before 4445 // the new one connected. 4446 if (currentNetwork != null) { 4447 mLegacyTypeTracker.remove(currentNetwork.networkInfo.getType(), 4448 currentNetwork); 4449 } 4450 mDefaultInetConditionPublished = 100; 4451 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 4452 } 4453 } 4454 } 4455 } 4456 for (NetworkAgentInfo nai : affectedNetworks) { 4457 boolean teardown = !nai.isVPN(); 4458 for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { 4459 NetworkRequest nr = nai.networkRequests.valueAt(i); 4460 try { 4461 if (mNetworkRequests.get(nr).isRequest) { 4462 teardown = false; 4463 } 4464 } catch (Exception e) { 4465 loge("Request " + nr + " not found in mNetworkRequests."); 4466 loge(" it came from request list of " + nai.name()); 4467 } 4468 } 4469 if (teardown) { 4470 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 4471 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 4472 } else { 4473 // not going to linger, so kill the list of linger networks.. only 4474 // notify them of linger if it happens as the result of gaining another, 4475 // but if they transition and old network stays up, don't tell them of linger 4476 // or very delayed loss 4477 nai.networkLingered.clear(); 4478 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 4479 } 4480 } 4481 if (keep) { 4482 if (isNewDefault) { 4483 makeDefault(newNetwork); 4484 synchronized (ConnectivityService.this) { 4485 // have a new default network, release the transition wakelock in 4486 // a second if it's held. The second pause is to allow apps 4487 // to reconnect over the new network 4488 if (mNetTransitionWakeLock.isHeld()) { 4489 mHandler.sendMessageDelayed(mHandler.obtainMessage( 4490 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 4491 mNetTransitionWakeLockSerialNumber, 0), 4492 1000); 4493 } 4494 } 4495 // TODO - read the tcp buffer size config string from somewhere 4496 // updateNetworkSettings(); 4497 } 4498 4499 // Notify battery stats service about this network, both the normal 4500 // interface and any stacked links. 4501 try { 4502 final IBatteryStats bs = BatteryStatsService.getService(); 4503 final int type = newNetwork.networkInfo.getType(); 4504 4505 final String baseIface = newNetwork.linkProperties.getInterfaceName(); 4506 bs.noteNetworkInterfaceType(baseIface, type); 4507 for (LinkProperties stacked : newNetwork.linkProperties.getStackedLinks()) { 4508 final String stackedIface = stacked.getInterfaceName(); 4509 bs.noteNetworkInterfaceType(stackedIface, type); 4510 NetworkStatsFactory.noteStackedIface(stackedIface, baseIface); 4511 } 4512 } catch (RemoteException ignored) { 4513 } 4514 4515 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 4516 } else { 4517 if (DBG && newNetwork.networkRequests.size() != 0) { 4518 loge("tearing down network with live requests:"); 4519 for (int i=0; i < newNetwork.networkRequests.size(); i++) { 4520 loge(" " + newNetwork.networkRequests.valueAt(i)); 4521 } 4522 } 4523 if (VDBG) log("Validated network turns out to be unwanted. Tear it down."); 4524 newNetwork.asyncChannel.disconnect(); 4525 } 4526 } 4527 4528 4529 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 4530 NetworkInfo.State state = newInfo.getState(); 4531 NetworkInfo oldInfo = null; 4532 synchronized (networkAgent) { 4533 oldInfo = networkAgent.networkInfo; 4534 networkAgent.networkInfo = newInfo; 4535 } 4536 if (networkAgent.isVPN() && mLockdownTracker != null) { 4537 mLockdownTracker.onVpnStateChanged(newInfo); 4538 } 4539 4540 if (oldInfo != null && oldInfo.getState() == state) { 4541 if (VDBG) log("ignoring duplicate network state non-change"); 4542 return; 4543 } 4544 if (DBG) { 4545 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 4546 (oldInfo == null ? "null" : oldInfo.getState()) + 4547 " to " + state); 4548 } 4549 4550 if (state == NetworkInfo.State.CONNECTED && !networkAgent.created) { 4551 try { 4552 // This should never fail. Specifying an already in use NetID will cause failure. 4553 if (networkAgent.isVPN()) { 4554 mNetd.createVirtualNetwork(networkAgent.network.netId, 4555 !networkAgent.linkProperties.getDnsServers().isEmpty(), 4556 (networkAgent.networkMisc == null || 4557 !networkAgent.networkMisc.allowBypass)); 4558 } else { 4559 mNetd.createPhysicalNetwork(networkAgent.network.netId); 4560 } 4561 } catch (Exception e) { 4562 loge("Error creating network " + networkAgent.network.netId + ": " 4563 + e.getMessage()); 4564 return; 4565 } 4566 networkAgent.created = true; 4567 updateLinkProperties(networkAgent, null); 4568 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 4569 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 4570 if (networkAgent.isVPN()) { 4571 // Temporarily disable the default proxy (not global). 4572 synchronized (mProxyLock) { 4573 if (!mDefaultProxyDisabled) { 4574 mDefaultProxyDisabled = true; 4575 if (mGlobalProxy == null && mDefaultProxy != null) { 4576 sendProxyBroadcast(null); 4577 } 4578 } 4579 } 4580 // TODO: support proxy per network. 4581 } 4582 // Make default network if we have no default. Any network is better than no network. 4583 if (mNetworkForRequestId.get(mDefaultRequest.requestId) == null && 4584 networkAgent.isVPN() == false && 4585 mDefaultRequest.networkCapabilities.satisfiedByNetworkCapabilities( 4586 networkAgent.networkCapabilities)) { 4587 makeDefault(networkAgent); 4588 } 4589 } else if (state == NetworkInfo.State.DISCONNECTED || 4590 state == NetworkInfo.State.SUSPENDED) { 4591 networkAgent.asyncChannel.disconnect(); 4592 if (networkAgent.isVPN()) { 4593 synchronized (mProxyLock) { 4594 if (mDefaultProxyDisabled) { 4595 mDefaultProxyDisabled = false; 4596 if (mGlobalProxy == null && mDefaultProxy != null) { 4597 sendProxyBroadcast(mDefaultProxy); 4598 } 4599 } 4600 } 4601 } 4602 } 4603 } 4604 4605 private void updateNetworkScore(NetworkAgentInfo nai, int score) { 4606 if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); 4607 4608 nai.currentScore = score; 4609 4610 // TODO - This will not do the right thing if this network is lowering 4611 // its score and has requests that can be served by other 4612 // currently-active networks, or if the network is increasing its 4613 // score and other networks have requests that can be better served 4614 // by this network. 4615 // 4616 // Really we want to see if any of our requests migrate to other 4617 // active/lingered networks and if any other requests migrate to us (depending 4618 // on increasing/decreasing currentScore. That's a bit of work and probably our 4619 // score checking/network allocation code needs to be modularized so we can understand 4620 // (see handleConnectionValided for an example). 4621 // 4622 // As a first order approx, lets just advertise the new score to factories. If 4623 // somebody can beat it they will nominate a network and our normal net replacement 4624 // code will fire. 4625 for (int i = 0; i < nai.networkRequests.size(); i++) { 4626 NetworkRequest nr = nai.networkRequests.valueAt(i); 4627 sendUpdatedScoreToFactories(nr, score); 4628 } 4629 } 4630 4631 // notify only this one new request of the current state 4632 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 4633 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 4634 // TODO - read state from monitor to decide what to send. 4635// if (nai.networkMonitor.isLingering()) { 4636// notifyType = NetworkCallbacks.LOSING; 4637// } else if (nai.networkMonitor.isEvaluating()) { 4638// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 4639// } 4640 callCallbackForRequest(nri, nai, notifyType); 4641 } 4642 4643 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 4644 // The NetworkInfo we actually send out has no bearing on the real 4645 // state of affairs. For example, if the default connection is mobile, 4646 // and a request for HIPRI has just gone away, we need to pretend that 4647 // HIPRI has just disconnected. So we need to set the type to HIPRI and 4648 // the state to DISCONNECTED, even though the network is of type MOBILE 4649 // and is still connected. 4650 NetworkInfo info = new NetworkInfo(nai.networkInfo); 4651 info.setType(type); 4652 if (connected) { 4653 info.setDetailedState(DetailedState.CONNECTED, null, info.getExtraInfo()); 4654 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 4655 } else { 4656 info.setDetailedState(DetailedState.DISCONNECTED, null, info.getExtraInfo()); 4657 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 4658 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 4659 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 4660 if (info.isFailover()) { 4661 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 4662 nai.networkInfo.setFailover(false); 4663 } 4664 if (info.getReason() != null) { 4665 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 4666 } 4667 if (info.getExtraInfo() != null) { 4668 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 4669 } 4670 NetworkAgentInfo newDefaultAgent = null; 4671 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 4672 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 4673 if (newDefaultAgent != null) { 4674 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 4675 newDefaultAgent.networkInfo); 4676 } else { 4677 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 4678 } 4679 } 4680 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 4681 mDefaultInetConditionPublished); 4682 final Intent immediateIntent = new Intent(intent); 4683 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 4684 sendStickyBroadcast(immediateIntent); 4685 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 4686 if (newDefaultAgent != null) { 4687 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 4688 getConnectivityChangeDelay()); 4689 } 4690 } 4691 } 4692 4693 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 4694 if (VDBG) log("notifyType " + notifyType + " for " + networkAgent.name()); 4695 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 4696 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 4697 NetworkRequestInfo nri = mNetworkRequests.get(nr); 4698 if (VDBG) log(" sending notification for " + nr); 4699 callCallbackForRequest(nri, networkAgent, notifyType); 4700 } 4701 } 4702 4703 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 4704 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4705 if (nai != null) { 4706 synchronized (nai) { 4707 return new LinkProperties(nai.linkProperties); 4708 } 4709 } 4710 return new LinkProperties(); 4711 } 4712 4713 private NetworkInfo getNetworkInfoForType(int networkType) { 4714 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 4715 return null; 4716 4717 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4718 if (nai != null) { 4719 NetworkInfo result = new NetworkInfo(nai.networkInfo); 4720 result.setType(networkType); 4721 return result; 4722 } else { 4723 return new NetworkInfo(networkType, 0, "Unknown", ""); 4724 } 4725 } 4726 4727 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 4728 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4729 if (nai != null) { 4730 synchronized (nai) { 4731 return new NetworkCapabilities(nai.networkCapabilities); 4732 } 4733 } 4734 return new NetworkCapabilities(); 4735 } 4736 4737 @Override 4738 public boolean addVpnAddress(String address, int prefixLength) { 4739 throwIfLockdownEnabled(); 4740 int user = UserHandle.getUserId(Binder.getCallingUid()); 4741 synchronized (mVpns) { 4742 return mVpns.get(user).addAddress(address, prefixLength); 4743 } 4744 } 4745 4746 @Override 4747 public boolean removeVpnAddress(String address, int prefixLength) { 4748 throwIfLockdownEnabled(); 4749 int user = UserHandle.getUserId(Binder.getCallingUid()); 4750 synchronized (mVpns) { 4751 return mVpns.get(user).removeAddress(address, prefixLength); 4752 } 4753 } 4754} 4755