ConnectivityService.java revision 0311b2b31a9577a89fc0a2ed82ba761aa97df06b
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 String mCurrentTcpBufferSizes; 268 269 private static final int ENABLED = 1; 270 private static final int DISABLED = 0; 271 272 /** 273 * used internally to change our mobile data enabled flag 274 */ 275 private static final int EVENT_CHANGE_MOBILE_DATA_ENABLED = 2; 276 277 /** 278 * used internally to clear a wakelock when transitioning 279 * from one net to another. Clear happens when we get a new 280 * network - EVENT_EXPIRE_NET_TRANSITION_WAKELOCK happens 281 * after a timeout if no network is found (typically 1 min). 282 */ 283 private static final int EVENT_CLEAR_NET_TRANSITION_WAKELOCK = 8; 284 285 /** 286 * used internally to reload global proxy settings 287 */ 288 private static final int EVENT_APPLY_GLOBAL_HTTP_PROXY = 9; 289 290 /** 291 * used internally to set external dependency met/unmet 292 * arg1 = ENABLED (met) or DISABLED (unmet) 293 * arg2 = NetworkType 294 */ 295 private static final int EVENT_SET_DEPENDENCY_MET = 10; 296 297 /** 298 * used internally to send a sticky broadcast delayed. 299 */ 300 private static final int EVENT_SEND_STICKY_BROADCAST_INTENT = 11; 301 302 /** 303 * Used internally to 304 * {@link NetworkStateTracker#setPolicyDataEnable(boolean)}. 305 */ 306 private static final int EVENT_SET_POLICY_DATA_ENABLE = 12; 307 308 /** 309 * Used internally to disable fail fast of mobile data 310 */ 311 private static final int EVENT_ENABLE_FAIL_FAST_MOBILE_DATA = 14; 312 313 /** 314 * used internally to indicate that data sampling interval is up 315 */ 316 private static final int EVENT_SAMPLE_INTERVAL_ELAPSED = 15; 317 318 /** 319 * PAC manager has received new port. 320 */ 321 private static final int EVENT_PROXY_HAS_CHANGED = 16; 322 323 /** 324 * used internally when registering NetworkFactories 325 * obj = NetworkFactoryInfo 326 */ 327 private static final int EVENT_REGISTER_NETWORK_FACTORY = 17; 328 329 /** 330 * used internally when registering NetworkAgents 331 * obj = Messenger 332 */ 333 private static final int EVENT_REGISTER_NETWORK_AGENT = 18; 334 335 /** 336 * used to add a network request 337 * includes a NetworkRequestInfo 338 */ 339 private static final int EVENT_REGISTER_NETWORK_REQUEST = 19; 340 341 /** 342 * indicates a timeout period is over - check if we had a network yet or not 343 * and if not, call the timeout calback (but leave the request live until they 344 * cancel it. 345 * includes a NetworkRequestInfo 346 */ 347 private static final int EVENT_TIMEOUT_NETWORK_REQUEST = 20; 348 349 /** 350 * used to add a network listener - no request 351 * includes a NetworkRequestInfo 352 */ 353 private static final int EVENT_REGISTER_NETWORK_LISTENER = 21; 354 355 /** 356 * used to remove a network request, either a listener or a real request 357 * arg1 = UID of caller 358 * obj = NetworkRequest 359 */ 360 private static final int EVENT_RELEASE_NETWORK_REQUEST = 22; 361 362 /** 363 * used internally when registering NetworkFactories 364 * obj = Messenger 365 */ 366 private static final int EVENT_UNREGISTER_NETWORK_FACTORY = 23; 367 368 /** 369 * used internally to expire a wakelock when transitioning 370 * from one net to another. Expire happens when we fail to find 371 * a new network (typically after 1 minute) - 372 * EVENT_CLEAR_NET_TRANSITION_WAKELOCK happens if we had found 373 * a replacement network. 374 */ 375 private static final int EVENT_EXPIRE_NET_TRANSITION_WAKELOCK = 24; 376 377 /** 378 * Used internally to indicate the system is ready. 379 */ 380 private static final int EVENT_SYSTEM_READY = 25; 381 382 383 /** Handler used for internal events. */ 384 final private InternalHandler mHandler; 385 /** Handler used for incoming {@link NetworkStateTracker} events. */ 386 final private NetworkStateTrackerHandler mTrackerHandler; 387 388 private boolean mSystemReady; 389 private Intent mInitialBroadcast; 390 391 private PowerManager.WakeLock mNetTransitionWakeLock; 392 private String mNetTransitionWakeLockCausedBy = ""; 393 private int mNetTransitionWakeLockSerialNumber; 394 private int mNetTransitionWakeLockTimeout; 395 396 private InetAddress mDefaultDns; 397 398 // used in DBG mode to track inet condition reports 399 private static final int INET_CONDITION_LOG_MAX_SIZE = 15; 400 private ArrayList mInetLog; 401 402 // track the current default http proxy - tell the world if we get a new one (real change) 403 private ProxyInfo mDefaultProxy = null; 404 private Object mProxyLock = new Object(); 405 private boolean mDefaultProxyDisabled = false; 406 407 // track the global proxy. 408 private ProxyInfo mGlobalProxy = null; 409 410 private PacManager mPacManager = null; 411 412 private SettingsObserver mSettingsObserver; 413 414 private UserManager mUserManager; 415 416 NetworkConfig[] mNetConfigs; 417 int mNetworksDefined; 418 419 // the set of network types that can only be enabled by system/sig apps 420 List mProtectedNetworks; 421 422 private DataConnectionStats mDataConnectionStats; 423 424 private AtomicInteger mEnableFailFastMobileDataTag = new AtomicInteger(0); 425 426 TelephonyManager mTelephonyManager; 427 428 // sequence number for Networks 429 private final static int MIN_NET_ID = 10; // some reserved marks 430 private final static int MAX_NET_ID = 65535; 431 private int mNextNetId = MIN_NET_ID; 432 433 // sequence number of NetworkRequests 434 private int mNextNetworkRequestId = 1; 435 436 /** 437 * Implements support for the legacy "one network per network type" model. 438 * 439 * We used to have a static array of NetworkStateTrackers, one for each 440 * network type, but that doesn't work any more now that we can have, 441 * for example, more that one wifi network. This class stores all the 442 * NetworkAgentInfo objects that support a given type, but the legacy 443 * API will only see the first one. 444 * 445 * It serves two main purposes: 446 * 447 * 1. Provide information about "the network for a given type" (since this 448 * API only supports one). 449 * 2. Send legacy connectivity change broadcasts. Broadcasts are sent if 450 * the first network for a given type changes, or if the default network 451 * changes. 452 */ 453 private class LegacyTypeTracker { 454 455 private static final boolean DBG = true; 456 private static final boolean VDBG = false; 457 private static final String TAG = "CSLegacyTypeTracker"; 458 459 /** 460 * Array of lists, one per legacy network type (e.g., TYPE_MOBILE_MMS). 461 * Each list holds references to all NetworkAgentInfos that are used to 462 * satisfy requests for that network type. 463 * 464 * This array is built out at startup such that an unsupported network 465 * doesn't get an ArrayList instance, making this a tristate: 466 * unsupported, supported but not active and active. 467 * 468 * The actual lists are populated when we scan the network types that 469 * are supported on this device. 470 */ 471 private ArrayList<NetworkAgentInfo> mTypeLists[]; 472 473 public LegacyTypeTracker() { 474 mTypeLists = (ArrayList<NetworkAgentInfo>[]) 475 new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE + 1]; 476 } 477 478 public void addSupportedType(int type) { 479 if (mTypeLists[type] != null) { 480 throw new IllegalStateException( 481 "legacy list for type " + type + "already initialized"); 482 } 483 mTypeLists[type] = new ArrayList<NetworkAgentInfo>(); 484 } 485 486 public boolean isTypeSupported(int type) { 487 return isNetworkTypeValid(type) && mTypeLists[type] != null; 488 } 489 490 public NetworkAgentInfo getNetworkForType(int type) { 491 if (isTypeSupported(type) && !mTypeLists[type].isEmpty()) { 492 return mTypeLists[type].get(0); 493 } else { 494 return null; 495 } 496 } 497 498 private void maybeLogBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 499 if (DBG) { 500 log("Sending " + (connected ? "connected" : "disconnected") + 501 " broadcast for type " + type + " " + nai.name() + 502 " isDefaultNetwork=" + isDefaultNetwork(nai)); 503 } 504 } 505 506 /** Adds the given network to the specified legacy type list. */ 507 public void add(int type, NetworkAgentInfo nai) { 508 if (!isTypeSupported(type)) { 509 return; // Invalid network type. 510 } 511 if (VDBG) log("Adding agent " + nai + " for legacy network type " + type); 512 513 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 514 if (list.contains(nai)) { 515 loge("Attempting to register duplicate agent for type " + type + ": " + nai); 516 return; 517 } 518 519 if (list.isEmpty() || isDefaultNetwork(nai)) { 520 maybeLogBroadcast(nai, true, type); 521 sendLegacyNetworkBroadcast(nai, true, type); 522 } 523 list.add(nai); 524 } 525 526 /** Removes the given network from the specified legacy type list. */ 527 public void remove(int type, NetworkAgentInfo nai) { 528 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 529 if (list == null || list.isEmpty()) { 530 return; 531 } 532 533 boolean wasFirstNetwork = list.get(0).equals(nai); 534 535 if (!list.remove(nai)) { 536 return; 537 } 538 539 if (wasFirstNetwork || isDefaultNetwork(nai)) { 540 maybeLogBroadcast(nai, false, type); 541 sendLegacyNetworkBroadcast(nai, false, type); 542 } 543 544 if (!list.isEmpty() && wasFirstNetwork) { 545 if (DBG) log("Other network available for type " + type + 546 ", sending connected broadcast"); 547 maybeLogBroadcast(list.get(0), false, type); 548 sendLegacyNetworkBroadcast(list.get(0), false, type); 549 } 550 } 551 552 /** Removes the given network from all legacy type lists. */ 553 public void remove(NetworkAgentInfo nai) { 554 if (VDBG) log("Removing agent " + nai); 555 for (int type = 0; type < mTypeLists.length; type++) { 556 remove(type, nai); 557 } 558 } 559 560 private String naiToString(NetworkAgentInfo nai) { 561 String name = (nai != null) ? nai.name() : "null"; 562 String state = (nai.networkInfo != null) ? 563 nai.networkInfo.getState() + "/" + nai.networkInfo.getDetailedState() : 564 "???/???"; 565 return name + " " + state; 566 } 567 568 public void dump(IndentingPrintWriter pw) { 569 for (int type = 0; type < mTypeLists.length; type++) { 570 if (mTypeLists[type] == null) continue; 571 pw.print(type + " "); 572 pw.increaseIndent(); 573 if (mTypeLists[type].size() == 0) pw.println("none"); 574 for (NetworkAgentInfo nai : mTypeLists[type]) { 575 pw.println(naiToString(nai)); 576 } 577 pw.decreaseIndent(); 578 } 579 } 580 581 // This class needs its own log method because it has a different TAG. 582 private void log(String s) { 583 Slog.d(TAG, s); 584 } 585 586 } 587 private LegacyTypeTracker mLegacyTypeTracker = new LegacyTypeTracker(); 588 589 public ConnectivityService(Context context, INetworkManagementService netManager, 590 INetworkStatsService statsService, INetworkPolicyManager policyManager) { 591 if (DBG) log("ConnectivityService starting up"); 592 593 NetworkCapabilities netCap = new NetworkCapabilities(); 594 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 595 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 596 mDefaultRequest = new NetworkRequest(netCap, TYPE_NONE, nextNetworkRequestId()); 597 NetworkRequestInfo nri = new NetworkRequestInfo(null, mDefaultRequest, new Binder(), 598 NetworkRequestInfo.REQUEST); 599 mNetworkRequests.put(mDefaultRequest, nri); 600 601 HandlerThread handlerThread = new HandlerThread("ConnectivityServiceThread"); 602 handlerThread.start(); 603 mHandler = new InternalHandler(handlerThread.getLooper()); 604 mTrackerHandler = new NetworkStateTrackerHandler(handlerThread.getLooper()); 605 606 // setup our unique device name 607 if (TextUtils.isEmpty(SystemProperties.get("net.hostname"))) { 608 String id = Settings.Secure.getString(context.getContentResolver(), 609 Settings.Secure.ANDROID_ID); 610 if (id != null && id.length() > 0) { 611 String name = new String("android-").concat(id); 612 SystemProperties.set("net.hostname", name); 613 } 614 } 615 616 // read our default dns server ip 617 String dns = Settings.Global.getString(context.getContentResolver(), 618 Settings.Global.DEFAULT_DNS_SERVER); 619 if (dns == null || dns.length() == 0) { 620 dns = context.getResources().getString( 621 com.android.internal.R.string.config_default_dns_server); 622 } 623 try { 624 mDefaultDns = NetworkUtils.numericToInetAddress(dns); 625 } catch (IllegalArgumentException e) { 626 loge("Error setting defaultDns using " + dns); 627 } 628 629 mContext = checkNotNull(context, "missing Context"); 630 mNetd = checkNotNull(netManager, "missing INetworkManagementService"); 631 mPolicyManager = checkNotNull(policyManager, "missing INetworkPolicyManager"); 632 mKeyStore = KeyStore.getInstance(); 633 mTelephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 634 635 try { 636 mPolicyManager.registerListener(mPolicyListener); 637 } catch (RemoteException e) { 638 // ouch, no rules updates means some processes may never get network 639 loge("unable to register INetworkPolicyListener" + e.toString()); 640 } 641 642 final PowerManager powerManager = (PowerManager) context.getSystemService( 643 Context.POWER_SERVICE); 644 mNetTransitionWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); 645 mNetTransitionWakeLockTimeout = mContext.getResources().getInteger( 646 com.android.internal.R.integer.config_networkTransitionTimeout); 647 648 mNetTrackers = new NetworkStateTracker[ 649 ConnectivityManager.MAX_NETWORK_TYPE+1]; 650 651 mNetConfigs = new NetworkConfig[ConnectivityManager.MAX_NETWORK_TYPE+1]; 652 653 // TODO: What is the "correct" way to do determine if this is a wifi only device? 654 boolean wifiOnly = SystemProperties.getBoolean("ro.radio.noril", false); 655 log("wifiOnly=" + wifiOnly); 656 String[] naStrings = context.getResources().getStringArray( 657 com.android.internal.R.array.networkAttributes); 658 for (String naString : naStrings) { 659 try { 660 NetworkConfig n = new NetworkConfig(naString); 661 if (VDBG) log("naString=" + naString + " config=" + n); 662 if (n.type > ConnectivityManager.MAX_NETWORK_TYPE) { 663 loge("Error in networkAttributes - ignoring attempt to define type " + 664 n.type); 665 continue; 666 } 667 if (wifiOnly && ConnectivityManager.isNetworkTypeMobile(n.type)) { 668 log("networkAttributes - ignoring mobile as this dev is wifiOnly " + 669 n.type); 670 continue; 671 } 672 if (mNetConfigs[n.type] != null) { 673 loge("Error in networkAttributes - ignoring attempt to redefine type " + 674 n.type); 675 continue; 676 } 677 mLegacyTypeTracker.addSupportedType(n.type); 678 679 mNetConfigs[n.type] = n; 680 mNetworksDefined++; 681 } catch(Exception e) { 682 // ignore it - leave the entry null 683 } 684 } 685 if (VDBG) log("mNetworksDefined=" + mNetworksDefined); 686 687 mProtectedNetworks = new ArrayList<Integer>(); 688 int[] protectedNetworks = context.getResources().getIntArray( 689 com.android.internal.R.array.config_protectedNetworks); 690 for (int p : protectedNetworks) { 691 if ((mNetConfigs[p] != null) && (mProtectedNetworks.contains(p) == false)) { 692 mProtectedNetworks.add(p); 693 } else { 694 if (DBG) loge("Ignoring protectedNetwork " + p); 695 } 696 } 697 698 mTestMode = SystemProperties.get("cm.test.mode").equals("true") 699 && SystemProperties.get("ro.build.type").equals("eng"); 700 701 mTethering = new Tethering(mContext, mNetd, statsService, mHandler.getLooper()); 702 703 //set up the listener for user state for creating user VPNs 704 IntentFilter intentFilter = new IntentFilter(); 705 intentFilter.addAction(Intent.ACTION_USER_STARTING); 706 intentFilter.addAction(Intent.ACTION_USER_STOPPING); 707 mContext.registerReceiverAsUser( 708 mUserIntentReceiver, UserHandle.ALL, intentFilter, null, null); 709 mClat = new Nat464Xlat(mContext, mNetd, this, mTrackerHandler); 710 711 try { 712 mNetd.registerObserver(mTethering); 713 mNetd.registerObserver(mDataActivityObserver); 714 mNetd.registerObserver(mClat); 715 } catch (RemoteException e) { 716 loge("Error registering observer :" + e); 717 } 718 719 if (DBG) { 720 mInetLog = new ArrayList(); 721 } 722 723 mSettingsObserver = new SettingsObserver(mHandler, EVENT_APPLY_GLOBAL_HTTP_PROXY); 724 mSettingsObserver.observe(mContext); 725 726 mDataConnectionStats = new DataConnectionStats(mContext); 727 mDataConnectionStats.startMonitoring(); 728 729 mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE); 730 731 IntentFilter filter = new IntentFilter(); 732 filter.addAction(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 733 mContext.registerReceiver( 734 new BroadcastReceiver() { 735 @Override 736 public void onReceive(Context context, Intent intent) { 737 String action = intent.getAction(); 738 if (action.equals(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED)) { 739 mHandler.sendMessage(mHandler.obtainMessage 740 (EVENT_SAMPLE_INTERVAL_ELAPSED)); 741 } 742 } 743 }, 744 new IntentFilter(filter)); 745 746 mPacManager = new PacManager(mContext, mHandler, EVENT_PROXY_HAS_CHANGED); 747 748 filter = new IntentFilter(); 749 filter.addAction(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 750 mContext.registerReceiver(mProvisioningReceiver, filter); 751 752 mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); 753 } 754 755 private synchronized int nextNetworkRequestId() { 756 return mNextNetworkRequestId++; 757 } 758 759 private synchronized int nextNetId() { 760 int netId = mNextNetId; 761 if (++mNextNetId > MAX_NET_ID) mNextNetId = MIN_NET_ID; 762 return netId; 763 } 764 765 private int getConnectivityChangeDelay() { 766 final ContentResolver cr = mContext.getContentResolver(); 767 768 /** Check system properties for the default value then use secure settings value, if any. */ 769 int defaultDelay = SystemProperties.getInt( 770 "conn." + Settings.Global.CONNECTIVITY_CHANGE_DELAY, 771 ConnectivityManager.CONNECTIVITY_CHANGE_DELAY_DEFAULT); 772 return Settings.Global.getInt(cr, Settings.Global.CONNECTIVITY_CHANGE_DELAY, 773 defaultDelay); 774 } 775 776 private boolean teardown(NetworkStateTracker netTracker) { 777 if (netTracker.teardown()) { 778 netTracker.setTeardownRequested(true); 779 return true; 780 } else { 781 return false; 782 } 783 } 784 785 /** 786 * Check if UID should be blocked from using the network represented by the 787 * given {@link NetworkStateTracker}. 788 */ 789 private boolean isNetworkBlocked(int networkType, int uid) { 790 final boolean networkCostly; 791 final int uidRules; 792 793 LinkProperties lp = getLinkPropertiesForType(networkType); 794 final String iface = (lp == null ? "" : lp.getInterfaceName()); 795 synchronized (mRulesLock) { 796 networkCostly = mMeteredIfaces.contains(iface); 797 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 798 } 799 800 if (networkCostly && (uidRules & RULE_REJECT_METERED) != 0) { 801 return true; 802 } 803 804 // no restrictive rules; network is visible 805 return false; 806 } 807 808 /** 809 * Return a filtered {@link NetworkInfo}, potentially marked 810 * {@link DetailedState#BLOCKED} based on 811 * {@link #isNetworkBlocked}. 812 */ 813 private NetworkInfo getFilteredNetworkInfo(int networkType, int uid) { 814 NetworkInfo info = getNetworkInfoForType(networkType); 815 return getFilteredNetworkInfo(info, networkType, uid); 816 } 817 818 private NetworkInfo getFilteredNetworkInfo(NetworkInfo info, int networkType, int uid) { 819 if (isNetworkBlocked(networkType, uid)) { 820 // network is blocked; clone and override state 821 info = new NetworkInfo(info); 822 info.setDetailedState(DetailedState.BLOCKED, null, null); 823 if (VDBG) log("returning Blocked NetworkInfo"); 824 } 825 if (mLockdownTracker != null) { 826 info = mLockdownTracker.augmentNetworkInfo(info); 827 if (VDBG) log("returning Locked NetworkInfo"); 828 } 829 return info; 830 } 831 832 /** 833 * Return NetworkInfo for the active (i.e., connected) network interface. 834 * It is assumed that at most one network is active at a time. If more 835 * than one is active, it is indeterminate which will be returned. 836 * @return the info for the active network, or {@code null} if none is 837 * active 838 */ 839 @Override 840 public NetworkInfo getActiveNetworkInfo() { 841 enforceAccessPermission(); 842 final int uid = Binder.getCallingUid(); 843 return getNetworkInfo(mActiveDefaultNetwork, uid); 844 } 845 846 // only called when the default request is satisfied 847 private void updateActiveDefaultNetwork(NetworkAgentInfo nai) { 848 if (nai != null) { 849 mActiveDefaultNetwork = nai.networkInfo.getType(); 850 } else { 851 mActiveDefaultNetwork = TYPE_NONE; 852 } 853 } 854 855 /** 856 * Find the first Provisioning network. 857 * 858 * @return NetworkInfo or null if none. 859 */ 860 private NetworkInfo getProvisioningNetworkInfo() { 861 enforceAccessPermission(); 862 863 // Find the first Provisioning Network 864 NetworkInfo provNi = null; 865 for (NetworkInfo ni : getAllNetworkInfo()) { 866 if (ni.isConnectedToProvisioningNetwork()) { 867 provNi = ni; 868 break; 869 } 870 } 871 if (DBG) log("getProvisioningNetworkInfo: X provNi=" + provNi); 872 return provNi; 873 } 874 875 /** 876 * Find the first Provisioning network or the ActiveDefaultNetwork 877 * if there is no Provisioning network 878 * 879 * @return NetworkInfo or null if none. 880 */ 881 @Override 882 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 883 enforceAccessPermission(); 884 885 NetworkInfo provNi = getProvisioningNetworkInfo(); 886 if (provNi == null) { 887 final int uid = Binder.getCallingUid(); 888 provNi = getNetworkInfo(mActiveDefaultNetwork, uid); 889 } 890 if (DBG) log("getProvisioningOrActiveNetworkInfo: X provNi=" + provNi); 891 return provNi; 892 } 893 894 public NetworkInfo getActiveNetworkInfoUnfiltered() { 895 enforceAccessPermission(); 896 if (isNetworkTypeValid(mActiveDefaultNetwork)) { 897 return getNetworkInfoForType(mActiveDefaultNetwork); 898 } 899 return null; 900 } 901 902 @Override 903 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 904 enforceConnectivityInternalPermission(); 905 return getNetworkInfo(mActiveDefaultNetwork, uid); 906 } 907 908 @Override 909 public NetworkInfo getNetworkInfo(int networkType) { 910 enforceAccessPermission(); 911 final int uid = Binder.getCallingUid(); 912 return getNetworkInfo(networkType, uid); 913 } 914 915 private NetworkInfo getNetworkInfo(int networkType, int uid) { 916 NetworkInfo info = null; 917 if (isNetworkTypeValid(networkType)) { 918 if (getNetworkInfoForType(networkType) != null) { 919 info = getFilteredNetworkInfo(networkType, uid); 920 } 921 } 922 return info; 923 } 924 925 @Override 926 public NetworkInfo getNetworkInfoForNetwork(Network network) { 927 enforceAccessPermission(); 928 if (network == null) return null; 929 930 final int uid = Binder.getCallingUid(); 931 NetworkAgentInfo nai = null; 932 synchronized (mNetworkForNetId) { 933 nai = mNetworkForNetId.get(network.netId); 934 } 935 if (nai == null) return null; 936 synchronized (nai) { 937 if (nai.networkInfo == null) return null; 938 939 return getFilteredNetworkInfo(nai.networkInfo, nai.networkInfo.getType(), uid); 940 } 941 } 942 943 @Override 944 public NetworkInfo[] getAllNetworkInfo() { 945 enforceAccessPermission(); 946 final int uid = Binder.getCallingUid(); 947 final ArrayList<NetworkInfo> result = Lists.newArrayList(); 948 synchronized (mRulesLock) { 949 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 950 networkType++) { 951 if (getNetworkInfoForType(networkType) != null) { 952 result.add(getFilteredNetworkInfo(networkType, uid)); 953 } 954 } 955 } 956 return result.toArray(new NetworkInfo[result.size()]); 957 } 958 959 @Override 960 public Network[] getAllNetworks() { 961 enforceAccessPermission(); 962 final ArrayList<Network> result = new ArrayList(); 963 synchronized (mNetworkForNetId) { 964 for (int i = 0; i < mNetworkForNetId.size(); i++) { 965 result.add(new Network(mNetworkForNetId.valueAt(i).network)); 966 } 967 } 968 return result.toArray(new Network[result.size()]); 969 } 970 971 @Override 972 public boolean isNetworkSupported(int networkType) { 973 enforceAccessPermission(); 974 return (isNetworkTypeValid(networkType) && (getNetworkInfoForType(networkType) != null)); 975 } 976 977 /** 978 * Return LinkProperties for the active (i.e., connected) default 979 * network interface. It is assumed that at most one default network 980 * is active at a time. If more than one is active, it is indeterminate 981 * which will be returned. 982 * @return the ip properties for the active network, or {@code null} if 983 * none is active 984 */ 985 @Override 986 public LinkProperties getActiveLinkProperties() { 987 return getLinkPropertiesForType(mActiveDefaultNetwork); 988 } 989 990 @Override 991 public LinkProperties getLinkPropertiesForType(int networkType) { 992 enforceAccessPermission(); 993 if (isNetworkTypeValid(networkType)) { 994 return getLinkPropertiesForTypeInternal(networkType); 995 } 996 return null; 997 } 998 999 // TODO - this should be ALL networks 1000 @Override 1001 public LinkProperties getLinkProperties(Network network) { 1002 enforceAccessPermission(); 1003 NetworkAgentInfo nai = null; 1004 synchronized (mNetworkForNetId) { 1005 nai = mNetworkForNetId.get(network.netId); 1006 } 1007 1008 if (nai != null) { 1009 synchronized (nai) { 1010 return new LinkProperties(nai.linkProperties); 1011 } 1012 } 1013 return null; 1014 } 1015 1016 @Override 1017 public NetworkCapabilities getNetworkCapabilities(Network network) { 1018 enforceAccessPermission(); 1019 NetworkAgentInfo nai = null; 1020 synchronized (mNetworkForNetId) { 1021 nai = mNetworkForNetId.get(network.netId); 1022 } 1023 if (nai != null) { 1024 synchronized (nai) { 1025 return new NetworkCapabilities(nai.networkCapabilities); 1026 } 1027 } 1028 return null; 1029 } 1030 1031 @Override 1032 public NetworkState[] getAllNetworkState() { 1033 enforceAccessPermission(); 1034 final int uid = Binder.getCallingUid(); 1035 final ArrayList<NetworkState> result = Lists.newArrayList(); 1036 synchronized (mRulesLock) { 1037 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1038 networkType++) { 1039 if (getNetworkInfoForType(networkType) != null) { 1040 final NetworkInfo info = getFilteredNetworkInfo(networkType, uid); 1041 final LinkProperties lp = getLinkPropertiesForTypeInternal(networkType); 1042 final NetworkCapabilities netcap = getNetworkCapabilitiesForType(networkType); 1043 result.add(new NetworkState(info, lp, netcap)); 1044 } 1045 } 1046 } 1047 return result.toArray(new NetworkState[result.size()]); 1048 } 1049 1050 private NetworkState getNetworkStateUnchecked(int networkType) { 1051 if (isNetworkTypeValid(networkType)) { 1052 NetworkInfo info = getNetworkInfoForType(networkType); 1053 if (info != null) { 1054 return new NetworkState(info, 1055 getLinkPropertiesForTypeInternal(networkType), 1056 getNetworkCapabilitiesForType(networkType)); 1057 } 1058 } 1059 return null; 1060 } 1061 1062 @Override 1063 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1064 enforceAccessPermission(); 1065 1066 final long token = Binder.clearCallingIdentity(); 1067 try { 1068 final NetworkState state = getNetworkStateUnchecked(mActiveDefaultNetwork); 1069 if (state != null) { 1070 try { 1071 return mPolicyManager.getNetworkQuotaInfo(state); 1072 } catch (RemoteException e) { 1073 } 1074 } 1075 return null; 1076 } finally { 1077 Binder.restoreCallingIdentity(token); 1078 } 1079 } 1080 1081 @Override 1082 public boolean isActiveNetworkMetered() { 1083 enforceAccessPermission(); 1084 final long token = Binder.clearCallingIdentity(); 1085 try { 1086 return isNetworkMeteredUnchecked(mActiveDefaultNetwork); 1087 } finally { 1088 Binder.restoreCallingIdentity(token); 1089 } 1090 } 1091 1092 private boolean isNetworkMeteredUnchecked(int networkType) { 1093 final NetworkState state = getNetworkStateUnchecked(networkType); 1094 if (state != null) { 1095 try { 1096 return mPolicyManager.isNetworkMetered(state); 1097 } catch (RemoteException e) { 1098 } 1099 } 1100 return false; 1101 } 1102 1103 private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { 1104 @Override 1105 public void interfaceClassDataActivityChanged(String label, boolean active, long tsNanos) { 1106 int deviceType = Integer.parseInt(label); 1107 sendDataActivityBroadcast(deviceType, active, tsNanos); 1108 } 1109 }; 1110 1111 /** 1112 * Ensure that a network route exists to deliver traffic to the specified 1113 * host via the specified network interface. 1114 * @param networkType the type of the network over which traffic to the 1115 * specified host is to be routed 1116 * @param hostAddress the IP address of the host to which the route is 1117 * desired 1118 * @return {@code true} on success, {@code false} on failure 1119 */ 1120 public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress) { 1121 enforceChangePermission(); 1122 if (mProtectedNetworks.contains(networkType)) { 1123 enforceConnectivityInternalPermission(); 1124 } 1125 1126 InetAddress addr; 1127 try { 1128 addr = InetAddress.getByAddress(hostAddress); 1129 } catch (UnknownHostException e) { 1130 if (DBG) log("requestRouteToHostAddress got " + e.toString()); 1131 return false; 1132 } 1133 1134 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1135 if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); 1136 return false; 1137 } 1138 1139 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1140 if (nai == null) { 1141 if (mLegacyTypeTracker.isTypeSupported(networkType) == false) { 1142 if (DBG) log("requestRouteToHostAddress on unsupported network: " + networkType); 1143 } else { 1144 if (DBG) log("requestRouteToHostAddress on down network: " + networkType); 1145 } 1146 return false; 1147 } 1148 1149 DetailedState netState; 1150 synchronized (nai) { 1151 netState = nai.networkInfo.getDetailedState(); 1152 } 1153 1154 if (netState != DetailedState.CONNECTED && netState != DetailedState.CAPTIVE_PORTAL_CHECK) { 1155 if (VDBG) { 1156 log("requestRouteToHostAddress on down network " 1157 + "(" + networkType + ") - dropped" 1158 + " netState=" + netState); 1159 } 1160 return false; 1161 } 1162 1163 final int uid = Binder.getCallingUid(); 1164 final long token = Binder.clearCallingIdentity(); 1165 try { 1166 LinkProperties lp; 1167 int netId; 1168 synchronized (nai) { 1169 lp = nai.linkProperties; 1170 netId = nai.network.netId; 1171 } 1172 boolean ok = addLegacyRouteToHost(lp, addr, netId, uid); 1173 if (DBG) log("requestRouteToHostAddress ok=" + ok); 1174 return ok; 1175 } finally { 1176 Binder.restoreCallingIdentity(token); 1177 } 1178 } 1179 1180 private boolean addLegacyRouteToHost(LinkProperties lp, InetAddress addr, int netId, int uid) { 1181 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), addr); 1182 if (bestRoute == null) { 1183 bestRoute = RouteInfo.makeHostRoute(addr, lp.getInterfaceName()); 1184 } else { 1185 String iface = bestRoute.getInterface(); 1186 if (bestRoute.getGateway().equals(addr)) { 1187 // if there is no better route, add the implied hostroute for our gateway 1188 bestRoute = RouteInfo.makeHostRoute(addr, iface); 1189 } else { 1190 // if we will connect to this through another route, add a direct route 1191 // to it's gateway 1192 bestRoute = RouteInfo.makeHostRoute(addr, bestRoute.getGateway(), iface); 1193 } 1194 } 1195 if (VDBG) log("Adding " + bestRoute + " for interface " + bestRoute.getInterface()); 1196 try { 1197 mNetd.addLegacyRouteForNetId(netId, bestRoute, uid); 1198 } catch (Exception e) { 1199 // never crash - catch them all 1200 if (DBG) loge("Exception trying to add a route: " + e); 1201 return false; 1202 } 1203 return true; 1204 } 1205 1206 public void setDataDependency(int networkType, boolean met) { 1207 enforceConnectivityInternalPermission(); 1208 1209 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_DEPENDENCY_MET, 1210 (met ? ENABLED : DISABLED), networkType)); 1211 } 1212 1213 private void handleSetDependencyMet(int networkType, boolean met) { 1214 if (mNetTrackers[networkType] != null) { 1215 if (DBG) { 1216 log("handleSetDependencyMet(" + networkType + ", " + met + ")"); 1217 } 1218 mNetTrackers[networkType].setDependencyMet(met); 1219 } 1220 } 1221 1222 private INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() { 1223 @Override 1224 public void onUidRulesChanged(int uid, int uidRules) { 1225 // caller is NPMS, since we only register with them 1226 if (LOGD_RULES) { 1227 log("onUidRulesChanged(uid=" + uid + ", uidRules=" + uidRules + ")"); 1228 } 1229 1230 synchronized (mRulesLock) { 1231 // skip update when we've already applied rules 1232 final int oldRules = mUidRules.get(uid, RULE_ALLOW_ALL); 1233 if (oldRules == uidRules) return; 1234 1235 mUidRules.put(uid, uidRules); 1236 } 1237 1238 // TODO: notify UID when it has requested targeted updates 1239 } 1240 1241 @Override 1242 public void onMeteredIfacesChanged(String[] meteredIfaces) { 1243 // caller is NPMS, since we only register with them 1244 if (LOGD_RULES) { 1245 log("onMeteredIfacesChanged(ifaces=" + Arrays.toString(meteredIfaces) + ")"); 1246 } 1247 1248 synchronized (mRulesLock) { 1249 mMeteredIfaces.clear(); 1250 for (String iface : meteredIfaces) { 1251 mMeteredIfaces.add(iface); 1252 } 1253 } 1254 } 1255 1256 @Override 1257 public void onRestrictBackgroundChanged(boolean restrictBackground) { 1258 // caller is NPMS, since we only register with them 1259 if (LOGD_RULES) { 1260 log("onRestrictBackgroundChanged(restrictBackground=" + restrictBackground + ")"); 1261 } 1262 1263 // kick off connectivity change broadcast for active network, since 1264 // global background policy change is radical. 1265 final int networkType = mActiveDefaultNetwork; 1266 if (isNetworkTypeValid(networkType)) { 1267 final NetworkStateTracker tracker = mNetTrackers[networkType]; 1268 if (tracker != null) { 1269 final NetworkInfo info = tracker.getNetworkInfo(); 1270 if (info != null && info.isConnected()) { 1271 sendConnectedBroadcast(info); 1272 } 1273 } 1274 } 1275 } 1276 }; 1277 1278 @Override 1279 public void setPolicyDataEnable(int networkType, boolean enabled) { 1280 // only someone like NPMS should only be calling us 1281 mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); 1282 1283 mHandler.sendMessage(mHandler.obtainMessage( 1284 EVENT_SET_POLICY_DATA_ENABLE, networkType, (enabled ? ENABLED : DISABLED))); 1285 } 1286 1287 private void handleSetPolicyDataEnable(int networkType, boolean enabled) { 1288 // TODO - handle this passing to factories 1289// if (isNetworkTypeValid(networkType)) { 1290// final NetworkStateTracker tracker = mNetTrackers[networkType]; 1291// if (tracker != null) { 1292// tracker.setPolicyDataEnable(enabled); 1293// } 1294// } 1295 } 1296 1297 private void enforceAccessPermission() { 1298 mContext.enforceCallingOrSelfPermission( 1299 android.Manifest.permission.ACCESS_NETWORK_STATE, 1300 "ConnectivityService"); 1301 } 1302 1303 private void enforceChangePermission() { 1304 mContext.enforceCallingOrSelfPermission( 1305 android.Manifest.permission.CHANGE_NETWORK_STATE, 1306 "ConnectivityService"); 1307 } 1308 1309 // TODO Make this a special check when it goes public 1310 private void enforceTetherChangePermission() { 1311 mContext.enforceCallingOrSelfPermission( 1312 android.Manifest.permission.CHANGE_NETWORK_STATE, 1313 "ConnectivityService"); 1314 } 1315 1316 private void enforceTetherAccessPermission() { 1317 mContext.enforceCallingOrSelfPermission( 1318 android.Manifest.permission.ACCESS_NETWORK_STATE, 1319 "ConnectivityService"); 1320 } 1321 1322 private void enforceConnectivityInternalPermission() { 1323 mContext.enforceCallingOrSelfPermission( 1324 android.Manifest.permission.CONNECTIVITY_INTERNAL, 1325 "ConnectivityService"); 1326 } 1327 1328 public void sendConnectedBroadcast(NetworkInfo info) { 1329 enforceConnectivityInternalPermission(); 1330 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1331 sendGeneralBroadcast(info, CONNECTIVITY_ACTION); 1332 } 1333 1334 private void sendConnectedBroadcastDelayed(NetworkInfo info, int delayMs) { 1335 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1336 sendGeneralBroadcastDelayed(info, CONNECTIVITY_ACTION, delayMs); 1337 } 1338 1339 private void sendInetConditionBroadcast(NetworkInfo info) { 1340 sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION); 1341 } 1342 1343 private Intent makeGeneralIntent(NetworkInfo info, String bcastType) { 1344 if (mLockdownTracker != null) { 1345 info = mLockdownTracker.augmentNetworkInfo(info); 1346 } 1347 1348 Intent intent = new Intent(bcastType); 1349 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 1350 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 1351 if (info.isFailover()) { 1352 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 1353 info.setFailover(false); 1354 } 1355 if (info.getReason() != null) { 1356 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 1357 } 1358 if (info.getExtraInfo() != null) { 1359 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 1360 info.getExtraInfo()); 1361 } 1362 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 1363 return intent; 1364 } 1365 1366 private void sendGeneralBroadcast(NetworkInfo info, String bcastType) { 1367 sendStickyBroadcast(makeGeneralIntent(info, bcastType)); 1368 } 1369 1370 private void sendGeneralBroadcastDelayed(NetworkInfo info, String bcastType, int delayMs) { 1371 sendStickyBroadcastDelayed(makeGeneralIntent(info, bcastType), delayMs); 1372 } 1373 1374 private void sendDataActivityBroadcast(int deviceType, boolean active, long tsNanos) { 1375 Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); 1376 intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); 1377 intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); 1378 intent.putExtra(ConnectivityManager.EXTRA_REALTIME_NS, tsNanos); 1379 final long ident = Binder.clearCallingIdentity(); 1380 try { 1381 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, 1382 RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); 1383 } finally { 1384 Binder.restoreCallingIdentity(ident); 1385 } 1386 } 1387 1388 private void sendStickyBroadcast(Intent intent) { 1389 synchronized(this) { 1390 if (!mSystemReady) { 1391 mInitialBroadcast = new Intent(intent); 1392 } 1393 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1394 if (VDBG) { 1395 log("sendStickyBroadcast: action=" + intent.getAction()); 1396 } 1397 1398 final long ident = Binder.clearCallingIdentity(); 1399 try { 1400 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1401 } finally { 1402 Binder.restoreCallingIdentity(ident); 1403 } 1404 } 1405 } 1406 1407 private void sendStickyBroadcastDelayed(Intent intent, int delayMs) { 1408 if (delayMs <= 0) { 1409 sendStickyBroadcast(intent); 1410 } else { 1411 if (VDBG) { 1412 log("sendStickyBroadcastDelayed: delayMs=" + delayMs + ", action=" 1413 + intent.getAction()); 1414 } 1415 mHandler.sendMessageDelayed(mHandler.obtainMessage( 1416 EVENT_SEND_STICKY_BROADCAST_INTENT, intent), delayMs); 1417 } 1418 } 1419 1420 void systemReady() { 1421 // start network sampling .. 1422 Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 1423 intent.setPackage(mContext.getPackageName()); 1424 1425 mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, 1426 SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); 1427 setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); 1428 1429 loadGlobalProxy(); 1430 1431 synchronized(this) { 1432 mSystemReady = true; 1433 if (mInitialBroadcast != null) { 1434 mContext.sendStickyBroadcastAsUser(mInitialBroadcast, UserHandle.ALL); 1435 mInitialBroadcast = null; 1436 } 1437 } 1438 // load the global proxy at startup 1439 mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY)); 1440 1441 // Try bringing up tracker, but if KeyStore isn't ready yet, wait 1442 // for user to unlock device. 1443 if (!updateLockdownVpn()) { 1444 final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_PRESENT); 1445 mContext.registerReceiver(mUserPresentReceiver, filter); 1446 } 1447 1448 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SYSTEM_READY)); 1449 } 1450 1451 private BroadcastReceiver mUserPresentReceiver = new BroadcastReceiver() { 1452 @Override 1453 public void onReceive(Context context, Intent intent) { 1454 // Try creating lockdown tracker, since user present usually means 1455 // unlocked keystore. 1456 if (updateLockdownVpn()) { 1457 mContext.unregisterReceiver(this); 1458 } 1459 } 1460 }; 1461 1462 /** @hide */ 1463 @Override 1464 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 1465 enforceConnectivityInternalPermission(); 1466 if (DBG) log("captivePortalCheckCompleted: ni=" + info + " captive=" + isCaptivePortal); 1467// mNetTrackers[info.getType()].captivePortalCheckCompleted(isCaptivePortal); 1468 } 1469 1470 /** 1471 * Setup data activity tracking for the given network. 1472 * 1473 * Every {@code setupDataActivityTracking} should be paired with a 1474 * {@link #removeDataActivityTracking} for cleanup. 1475 */ 1476 private void setupDataActivityTracking(NetworkAgentInfo networkAgent) { 1477 final String iface = networkAgent.linkProperties.getInterfaceName(); 1478 1479 final int timeout; 1480 int type = ConnectivityManager.TYPE_NONE; 1481 1482 if (networkAgent.networkCapabilities.hasTransport( 1483 NetworkCapabilities.TRANSPORT_CELLULAR)) { 1484 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1485 Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, 1486 5); 1487 type = ConnectivityManager.TYPE_MOBILE; 1488 } else if (networkAgent.networkCapabilities.hasTransport( 1489 NetworkCapabilities.TRANSPORT_WIFI)) { 1490 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1491 Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, 1492 0); 1493 type = ConnectivityManager.TYPE_WIFI; 1494 } else { 1495 // do not track any other networks 1496 timeout = 0; 1497 } 1498 1499 if (timeout > 0 && iface != null && type != ConnectivityManager.TYPE_NONE) { 1500 try { 1501 mNetd.addIdleTimer(iface, timeout, type); 1502 } catch (Exception e) { 1503 // You shall not crash! 1504 loge("Exception in setupDataActivityTracking " + e); 1505 } 1506 } 1507 } 1508 1509 /** 1510 * Remove data activity tracking when network disconnects. 1511 */ 1512 private void removeDataActivityTracking(NetworkAgentInfo networkAgent) { 1513 final String iface = networkAgent.linkProperties.getInterfaceName(); 1514 final NetworkCapabilities caps = networkAgent.networkCapabilities; 1515 1516 if (iface != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) || 1517 caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))) { 1518 try { 1519 // the call fails silently if no idletimer setup for this interface 1520 mNetd.removeIdleTimer(iface); 1521 } catch (Exception e) { 1522 loge("Exception in removeDataActivityTracking " + e); 1523 } 1524 } 1525 } 1526 1527 /** 1528 * Reads the network specific MTU size from reources. 1529 * and set it on it's iface. 1530 */ 1531 private void updateMtu(LinkProperties newLp, LinkProperties oldLp) { 1532 final String iface = newLp.getInterfaceName(); 1533 final int mtu = newLp.getMtu(); 1534 if (oldLp != null && newLp.isIdenticalMtu(oldLp)) { 1535 if (VDBG) log("identical MTU - not setting"); 1536 return; 1537 } 1538 1539 if (LinkProperties.isValidMtu(mtu, newLp.hasGlobalIPv6Address()) == false) { 1540 loge("Unexpected mtu value: " + mtu + ", " + iface); 1541 return; 1542 } 1543 1544 // Cannot set MTU without interface name 1545 if (TextUtils.isEmpty(iface)) { 1546 loge("Setting MTU size with null iface."); 1547 return; 1548 } 1549 1550 try { 1551 if (VDBG) log("Setting MTU size: " + iface + ", " + mtu); 1552 mNetd.setMtu(iface, mtu); 1553 } catch (Exception e) { 1554 Slog.e(TAG, "exception in setMtu()" + e); 1555 } 1556 } 1557 1558 private static final String DEFAULT_TCP_BUFFER_SIZES = "4096,87380,110208,4096,16384,110208"; 1559 1560 private void updateTcpBufferSizes(NetworkAgentInfo nai) { 1561 if (isDefaultNetwork(nai) == false) { 1562 return; 1563 } 1564 1565 String tcpBufferSizes = nai.linkProperties.getTcpBufferSizes(); 1566 String[] values = null; 1567 if (tcpBufferSizes != null) { 1568 values = tcpBufferSizes.split(","); 1569 } 1570 1571 if (values == null || values.length != 6) { 1572 if (VDBG) log("Invalid tcpBufferSizes string: " + tcpBufferSizes +", using defaults"); 1573 tcpBufferSizes = DEFAULT_TCP_BUFFER_SIZES; 1574 values = tcpBufferSizes.split(","); 1575 } 1576 1577 if (tcpBufferSizes.equals(mCurrentTcpBufferSizes)) return; 1578 1579 try { 1580 if (VDBG) Slog.d(TAG, "Setting tx/rx TCP buffers to " + tcpBufferSizes); 1581 1582 final String prefix = "/sys/kernel/ipv4/tcp_"; 1583 FileUtils.stringToFile(prefix + "rmem_min", values[0]); 1584 FileUtils.stringToFile(prefix + "rmem_def", values[1]); 1585 FileUtils.stringToFile(prefix + "rmem_max", values[2]); 1586 FileUtils.stringToFile(prefix + "wmem_min", values[3]); 1587 FileUtils.stringToFile(prefix + "wmem_def", values[4]); 1588 FileUtils.stringToFile(prefix + "wmem_max", values[5]); 1589 mCurrentTcpBufferSizes = tcpBufferSizes; 1590 } catch (IOException e) { 1591 loge("Can't set TCP buffer sizes:" + e); 1592 } 1593 1594 final String defaultRwndKey = "net.tcp.default_init_rwnd"; 1595 int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0); 1596 Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(), 1597 Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue); 1598 final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd"; 1599 if (rwndValue != 0) { 1600 SystemProperties.set(sysctlKey, rwndValue.toString()); 1601 } 1602 } 1603 1604 private void flushVmDnsCache() { 1605 /* 1606 * Tell the VMs to toss their DNS caches 1607 */ 1608 Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE); 1609 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); 1610 /* 1611 * Connectivity events can happen before boot has completed ... 1612 */ 1613 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1614 final long ident = Binder.clearCallingIdentity(); 1615 try { 1616 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 1617 } finally { 1618 Binder.restoreCallingIdentity(ident); 1619 } 1620 } 1621 1622 @Override 1623 public int getRestoreDefaultNetworkDelay(int networkType) { 1624 String restoreDefaultNetworkDelayStr = SystemProperties.get( 1625 NETWORK_RESTORE_DELAY_PROP_NAME); 1626 if(restoreDefaultNetworkDelayStr != null && 1627 restoreDefaultNetworkDelayStr.length() != 0) { 1628 try { 1629 return Integer.valueOf(restoreDefaultNetworkDelayStr); 1630 } catch (NumberFormatException e) { 1631 } 1632 } 1633 // if the system property isn't set, use the value for the apn type 1634 int ret = RESTORE_DEFAULT_NETWORK_DELAY; 1635 1636 if ((networkType <= ConnectivityManager.MAX_NETWORK_TYPE) && 1637 (mNetConfigs[networkType] != null)) { 1638 ret = mNetConfigs[networkType].restoreTime; 1639 } 1640 return ret; 1641 } 1642 1643 @Override 1644 protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { 1645 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1646 if (mContext.checkCallingOrSelfPermission( 1647 android.Manifest.permission.DUMP) 1648 != PackageManager.PERMISSION_GRANTED) { 1649 pw.println("Permission Denial: can't dump ConnectivityService " + 1650 "from from pid=" + Binder.getCallingPid() + ", uid=" + 1651 Binder.getCallingUid()); 1652 return; 1653 } 1654 1655 pw.println("NetworkFactories for:"); 1656 pw.increaseIndent(); 1657 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 1658 pw.println(nfi.name); 1659 } 1660 pw.decreaseIndent(); 1661 pw.println(); 1662 1663 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 1664 pw.print("Active default network: "); 1665 if (defaultNai == null) { 1666 pw.println("none"); 1667 } else { 1668 pw.println(defaultNai.network.netId); 1669 } 1670 pw.println(); 1671 1672 pw.println("Current Networks:"); 1673 pw.increaseIndent(); 1674 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 1675 pw.println(nai.toString()); 1676 pw.increaseIndent(); 1677 pw.println("Requests:"); 1678 pw.increaseIndent(); 1679 for (int i = 0; i < nai.networkRequests.size(); i++) { 1680 pw.println(nai.networkRequests.valueAt(i).toString()); 1681 } 1682 pw.decreaseIndent(); 1683 pw.println("Lingered:"); 1684 pw.increaseIndent(); 1685 for (NetworkRequest nr : nai.networkLingered) pw.println(nr.toString()); 1686 pw.decreaseIndent(); 1687 pw.decreaseIndent(); 1688 } 1689 pw.decreaseIndent(); 1690 pw.println(); 1691 1692 pw.println("Network Requests:"); 1693 pw.increaseIndent(); 1694 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 1695 pw.println(nri.toString()); 1696 } 1697 pw.println(); 1698 pw.decreaseIndent(); 1699 1700 pw.print("mActiveDefaultNetwork: " + mActiveDefaultNetwork); 1701 if (mActiveDefaultNetwork != TYPE_NONE) { 1702 NetworkInfo activeNetworkInfo = getActiveNetworkInfo(); 1703 if (activeNetworkInfo != null) { 1704 pw.print(" " + activeNetworkInfo.getState() + 1705 "/" + activeNetworkInfo.getDetailedState()); 1706 } 1707 } 1708 pw.println(); 1709 1710 pw.println("mLegacyTypeTracker:"); 1711 pw.increaseIndent(); 1712 mLegacyTypeTracker.dump(pw); 1713 pw.decreaseIndent(); 1714 pw.println(); 1715 1716 synchronized (this) { 1717 pw.println("NetworkTranstionWakeLock is currently " + 1718 (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held."); 1719 pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy); 1720 } 1721 pw.println(); 1722 1723 mTethering.dump(fd, pw, args); 1724 1725 if (mInetLog != null) { 1726 pw.println(); 1727 pw.println("Inet condition reports:"); 1728 pw.increaseIndent(); 1729 for(int i = 0; i < mInetLog.size(); i++) { 1730 pw.println(mInetLog.get(i)); 1731 } 1732 pw.decreaseIndent(); 1733 } 1734 } 1735 1736 // must be stateless - things change under us. 1737 private class NetworkStateTrackerHandler extends Handler { 1738 public NetworkStateTrackerHandler(Looper looper) { 1739 super(looper); 1740 } 1741 1742 @Override 1743 public void handleMessage(Message msg) { 1744 NetworkInfo info; 1745 switch (msg.what) { 1746 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 1747 handleAsyncChannelHalfConnect(msg); 1748 break; 1749 } 1750 case AsyncChannel.CMD_CHANNEL_DISCONNECT: { 1751 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1752 if (nai != null) nai.asyncChannel.disconnect(); 1753 break; 1754 } 1755 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 1756 handleAsyncChannelDisconnected(msg); 1757 break; 1758 } 1759 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { 1760 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1761 if (nai == null) { 1762 loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); 1763 } else { 1764 updateCapabilities(nai, (NetworkCapabilities)msg.obj); 1765 } 1766 break; 1767 } 1768 case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { 1769 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1770 if (nai == null) { 1771 loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); 1772 } else { 1773 if (VDBG) { 1774 log("Update of Linkproperties for " + nai.name() + 1775 "; created=" + nai.created); 1776 } 1777 LinkProperties oldLp = nai.linkProperties; 1778 synchronized (nai) { 1779 nai.linkProperties = (LinkProperties)msg.obj; 1780 } 1781 if (nai.created) updateLinkProperties(nai, oldLp); 1782 } 1783 break; 1784 } 1785 case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { 1786 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1787 if (nai == null) { 1788 loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); 1789 break; 1790 } 1791 info = (NetworkInfo) msg.obj; 1792 updateNetworkInfo(nai, info); 1793 break; 1794 } 1795 case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { 1796 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1797 if (nai == null) { 1798 loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); 1799 break; 1800 } 1801 Integer score = (Integer) msg.obj; 1802 if (score != null) updateNetworkScore(nai, score.intValue()); 1803 break; 1804 } 1805 case NetworkAgent.EVENT_UID_RANGES_ADDED: { 1806 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1807 if (nai == null) { 1808 loge("EVENT_UID_RANGES_ADDED from unknown NetworkAgent"); 1809 break; 1810 } 1811 try { 1812 mNetd.addVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1813 } catch (Exception e) { 1814 // Never crash! 1815 loge("Exception in addVpnUidRanges: " + e); 1816 } 1817 break; 1818 } 1819 case NetworkAgent.EVENT_UID_RANGES_REMOVED: { 1820 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1821 if (nai == null) { 1822 loge("EVENT_UID_RANGES_REMOVED from unknown NetworkAgent"); 1823 break; 1824 } 1825 try { 1826 mNetd.removeVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1827 } catch (Exception e) { 1828 // Never crash! 1829 loge("Exception in removeVpnUidRanges: " + e); 1830 } 1831 break; 1832 } 1833 case NetworkAgent.EVENT_BLOCK_ADDRESS_FAMILY: { 1834 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1835 if (nai == null) { 1836 loge("EVENT_BLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1837 break; 1838 } 1839 try { 1840 mNetd.blockAddressFamily((Integer) msg.obj, nai.network.netId, 1841 nai.linkProperties.getInterfaceName()); 1842 } catch (Exception e) { 1843 // Never crash! 1844 loge("Exception in blockAddressFamily: " + e); 1845 } 1846 break; 1847 } 1848 case NetworkAgent.EVENT_UNBLOCK_ADDRESS_FAMILY: { 1849 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1850 if (nai == null) { 1851 loge("EVENT_UNBLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1852 break; 1853 } 1854 try { 1855 mNetd.unblockAddressFamily((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 NetworkMonitor.EVENT_NETWORK_VALIDATED: { 1864 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1865 handleConnectionValidated(nai); 1866 break; 1867 } 1868 case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { 1869 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1870 handleLingerComplete(nai); 1871 break; 1872 } 1873 case NetworkMonitor.EVENT_PROVISIONING_NOTIFICATION: { 1874 if (msg.arg1 == 0) { 1875 setProvNotificationVisibleIntent(false, msg.arg2, 0, null, null); 1876 } else { 1877 NetworkAgentInfo nai = mNetworkForNetId.get(msg.arg2); 1878 if (nai == null) { 1879 loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); 1880 break; 1881 } 1882 setProvNotificationVisibleIntent(true, msg.arg2, nai.networkInfo.getType(), 1883 nai.networkInfo.getExtraInfo(), (PendingIntent)msg.obj); 1884 } 1885 break; 1886 } 1887 case NetworkStateTracker.EVENT_STATE_CHANGED: { 1888 info = (NetworkInfo) msg.obj; 1889 NetworkInfo.State state = info.getState(); 1890 1891 if (VDBG || (state == NetworkInfo.State.CONNECTED) || 1892 (state == NetworkInfo.State.DISCONNECTED) || 1893 (state == NetworkInfo.State.SUSPENDED)) { 1894 log("ConnectivityChange for " + 1895 info.getTypeName() + ": " + 1896 state + "/" + info.getDetailedState()); 1897 } 1898 1899 // Since mobile has the notion of a network/apn that can be used for 1900 // provisioning we need to check every time we're connected as 1901 // CaptiveProtalTracker won't detected it because DCT doesn't report it 1902 // as connected as ACTION_ANY_DATA_CONNECTION_STATE_CHANGED instead its 1903 // reported as ACTION_DATA_CONNECTION_CONNECTED_TO_PROVISIONING_APN. Which 1904 // is received by MDST and sent here as EVENT_STATE_CHANGED. 1905 if (ConnectivityManager.isNetworkTypeMobile(info.getType()) 1906 && (0 != Settings.Global.getInt(mContext.getContentResolver(), 1907 Settings.Global.DEVICE_PROVISIONED, 0)) 1908 && (((state == NetworkInfo.State.CONNECTED) 1909 && (info.getType() == ConnectivityManager.TYPE_MOBILE)) 1910 || info.isConnectedToProvisioningNetwork())) { 1911 log("ConnectivityChange checkMobileProvisioning for" 1912 + " TYPE_MOBILE or ProvisioningNetwork"); 1913 checkMobileProvisioning(CheckMp.MAX_TIMEOUT_MS); 1914 } 1915 1916 EventLogTags.writeConnectivityStateChanged( 1917 info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); 1918 1919 if (info.isConnectedToProvisioningNetwork()) { 1920 /** 1921 * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING 1922 * for now its an in between network, its a network that 1923 * is actually a default network but we don't want it to be 1924 * announced as such to keep background applications from 1925 * trying to use it. It turns out that some still try so we 1926 * take the additional step of clearing any default routes 1927 * to the link that may have incorrectly setup by the lower 1928 * levels. 1929 */ 1930 LinkProperties lp = getLinkPropertiesForTypeInternal(info.getType()); 1931 if (DBG) { 1932 log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); 1933 } 1934 1935 // Clear any default routes setup by the radio so 1936 // any activity by applications trying to use this 1937 // connection will fail until the provisioning network 1938 // is enabled. 1939 /* 1940 for (RouteInfo r : lp.getRoutes()) { 1941 removeRoute(lp, r, TO_DEFAULT_TABLE, 1942 mNetTrackers[info.getType()].getNetwork().netId); 1943 } 1944 */ 1945 } else if (state == NetworkInfo.State.DISCONNECTED) { 1946 } else if (state == NetworkInfo.State.SUSPENDED) { 1947 } else if (state == NetworkInfo.State.CONNECTED) { 1948 // handleConnect(info); 1949 } 1950 if (mLockdownTracker != null) { 1951 mLockdownTracker.onNetworkInfoChanged(info); 1952 } 1953 break; 1954 } 1955 case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { 1956 info = (NetworkInfo) msg.obj; 1957 // TODO: Temporary allowing network configuration 1958 // change not resetting sockets. 1959 // @see bug/4455071 1960 /* 1961 handleConnectivityChange(info.getType(), mCurrentLinkProperties[info.getType()], 1962 false); 1963 */ 1964 break; 1965 } 1966 } 1967 } 1968 } 1969 1970 private void handleAsyncChannelHalfConnect(Message msg) { 1971 AsyncChannel ac = (AsyncChannel) msg.obj; 1972 if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { 1973 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 1974 if (VDBG) log("NetworkFactory connected"); 1975 // A network factory has connected. Send it all current NetworkRequests. 1976 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 1977 if (nri.isRequest == false) continue; 1978 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 1979 ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, 1980 (nai != null ? nai.currentScore : 0), 0, nri.request); 1981 } 1982 } else { 1983 loge("Error connecting NetworkFactory"); 1984 mNetworkFactoryInfos.remove(msg.obj); 1985 } 1986 } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { 1987 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 1988 if (VDBG) log("NetworkAgent connected"); 1989 // A network agent has requested a connection. Establish the connection. 1990 mNetworkAgentInfos.get(msg.replyTo).asyncChannel. 1991 sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 1992 } else { 1993 loge("Error connecting NetworkAgent"); 1994 NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); 1995 if (nai != null) { 1996 synchronized (mNetworkForNetId) { 1997 mNetworkForNetId.remove(nai.network.netId); 1998 } 1999 // Just in case. 2000 mLegacyTypeTracker.remove(nai); 2001 } 2002 } 2003 } 2004 } 2005 private void handleAsyncChannelDisconnected(Message msg) { 2006 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 2007 if (nai != null) { 2008 if (DBG) { 2009 log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); 2010 } 2011 // A network agent has disconnected. 2012 if (nai.created) { 2013 // Tell netd to clean up the configuration for this network 2014 // (routing rules, DNS, etc). 2015 try { 2016 mNetd.removeNetwork(nai.network.netId); 2017 } catch (Exception e) { 2018 loge("Exception removing network: " + e); 2019 } 2020 } 2021 // TODO - if we move the logic to the network agent (have them disconnect 2022 // because they lost all their requests or because their score isn't good) 2023 // then they would disconnect organically, report their new state and then 2024 // disconnect the channel. 2025 if (nai.networkInfo.isConnected()) { 2026 nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, 2027 null, null); 2028 } 2029 if (isDefaultNetwork(nai)) { 2030 mDefaultInetConditionPublished = 0; 2031 } 2032 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); 2033 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); 2034 mNetworkAgentInfos.remove(msg.replyTo); 2035 updateClat(null, nai.linkProperties, nai); 2036 mLegacyTypeTracker.remove(nai); 2037 synchronized (mNetworkForNetId) { 2038 mNetworkForNetId.remove(nai.network.netId); 2039 } 2040 // Since we've lost the network, go through all the requests that 2041 // it was satisfying and see if any other factory can satisfy them. 2042 final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); 2043 for (int i = 0; i < nai.networkRequests.size(); i++) { 2044 NetworkRequest request = nai.networkRequests.valueAt(i); 2045 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); 2046 if (VDBG) { 2047 log(" checking request " + request + ", currentNetwork = " + 2048 (currentNetwork != null ? currentNetwork.name() : "null")); 2049 } 2050 if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { 2051 mNetworkForRequestId.remove(request.requestId); 2052 sendUpdatedScoreToFactories(request, 0); 2053 NetworkAgentInfo alternative = null; 2054 for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { 2055 NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); 2056 if (existing.networkInfo.isConnected() && 2057 request.networkCapabilities.satisfiedByNetworkCapabilities( 2058 existing.networkCapabilities) && 2059 (alternative == null || 2060 alternative.currentScore < existing.currentScore)) { 2061 alternative = existing; 2062 } 2063 } 2064 if (alternative != null && !toActivate.contains(alternative)) { 2065 toActivate.add(alternative); 2066 } 2067 } 2068 } 2069 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 2070 removeDataActivityTracking(nai); 2071 mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; 2072 requestNetworkTransitionWakelock(nai.name()); 2073 } 2074 for (NetworkAgentInfo networkToActivate : toActivate) { 2075 networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2076 } 2077 } 2078 } 2079 2080 private void handleRegisterNetworkRequest(Message msg) { 2081 final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); 2082 final NetworkCapabilities newCap = nri.request.networkCapabilities; 2083 int score = 0; 2084 2085 // Check for the best currently alive network that satisfies this request 2086 NetworkAgentInfo bestNetwork = null; 2087 for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { 2088 if (VDBG) log("handleRegisterNetworkRequest checking " + network.name()); 2089 if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { 2090 if (VDBG) log("apparently satisfied. currentScore=" + network.currentScore); 2091 if ((bestNetwork == null) || bestNetwork.currentScore < network.currentScore) { 2092 if (!nri.isRequest) { 2093 // Not setting bestNetwork here as a listening NetworkRequest may be 2094 // satisfied by multiple Networks. Instead the request is added to 2095 // each satisfying Network and notified about each. 2096 network.addRequest(nri.request); 2097 notifyNetworkCallback(network, nri); 2098 } else { 2099 bestNetwork = network; 2100 } 2101 } 2102 } 2103 } 2104 if (bestNetwork != null) { 2105 if (VDBG) log("using " + bestNetwork.name()); 2106 if (bestNetwork.networkInfo.isConnected()) { 2107 // Cancel any lingering so the linger timeout doesn't teardown this network 2108 // even though we have a request for it. 2109 bestNetwork.networkLingered.clear(); 2110 bestNetwork.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2111 } 2112 bestNetwork.addRequest(nri.request); 2113 mNetworkForRequestId.put(nri.request.requestId, bestNetwork); 2114 notifyNetworkCallback(bestNetwork, nri); 2115 score = bestNetwork.currentScore; 2116 if (nri.request.legacyType != TYPE_NONE) { 2117 mLegacyTypeTracker.add(nri.request.legacyType, bestNetwork); 2118 } 2119 } 2120 mNetworkRequests.put(nri.request, nri); 2121 if (nri.isRequest) { 2122 if (DBG) log("sending new NetworkRequest to factories"); 2123 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2124 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 2125 0, nri.request); 2126 } 2127 } 2128 } 2129 2130 private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) { 2131 NetworkRequestInfo nri = mNetworkRequests.get(request); 2132 if (nri != null) { 2133 if (nri.mUid != callingUid) { 2134 if (DBG) log("Attempt to release unowned NetworkRequest " + request); 2135 return; 2136 } 2137 if (DBG) log("releasing NetworkRequest " + request); 2138 nri.unlinkDeathRecipient(); 2139 mNetworkRequests.remove(request); 2140 // tell the network currently servicing this that it's no longer interested 2141 NetworkAgentInfo affectedNetwork = mNetworkForRequestId.get(nri.request.requestId); 2142 if (affectedNetwork != null) { 2143 mNetworkForRequestId.remove(nri.request.requestId); 2144 affectedNetwork.networkRequests.remove(nri.request.requestId); 2145 if (VDBG) { 2146 log(" Removing from current network " + affectedNetwork.name() + ", leaving " + 2147 affectedNetwork.networkRequests.size() + " requests."); 2148 } 2149 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 2150 mLegacyTypeTracker.remove(nri.request.legacyType, affectedNetwork); 2151 } 2152 } 2153 2154 if (nri.isRequest) { 2155 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2156 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 2157 nri.request); 2158 } 2159 2160 if (affectedNetwork != null) { 2161 // check if this network still has live requests - otherwise, tear down 2162 // TODO - probably push this to the NF/NA 2163 boolean keep = affectedNetwork.isVPN(); 2164 for (int i = 0; i < affectedNetwork.networkRequests.size() && !keep; i++) { 2165 NetworkRequest r = affectedNetwork.networkRequests.valueAt(i); 2166 if (mNetworkRequests.get(r).isRequest) { 2167 keep = true; 2168 } 2169 } 2170 if (keep == false) { 2171 if (DBG) log("no live requests for " + affectedNetwork.name() + 2172 "; disconnecting"); 2173 affectedNetwork.asyncChannel.disconnect(); 2174 } 2175 } 2176 } 2177 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 2178 } 2179 } 2180 2181 private class InternalHandler extends Handler { 2182 public InternalHandler(Looper looper) { 2183 super(looper); 2184 } 2185 2186 @Override 2187 public void handleMessage(Message msg) { 2188 NetworkInfo info; 2189 switch (msg.what) { 2190 case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: 2191 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 2192 String causedBy = null; 2193 synchronized (ConnectivityService.this) { 2194 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 2195 mNetTransitionWakeLock.isHeld()) { 2196 mNetTransitionWakeLock.release(); 2197 causedBy = mNetTransitionWakeLockCausedBy; 2198 } else { 2199 break; 2200 } 2201 } 2202 if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { 2203 log("Failed to find a new network - expiring NetTransition Wakelock"); 2204 } else { 2205 log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + 2206 " cleared because we found a replacement network"); 2207 } 2208 break; 2209 } 2210 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 2211 handleDeprecatedGlobalHttpProxy(); 2212 break; 2213 } 2214 case EVENT_SET_DEPENDENCY_MET: { 2215 boolean met = (msg.arg1 == ENABLED); 2216 handleSetDependencyMet(msg.arg2, met); 2217 break; 2218 } 2219 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 2220 Intent intent = (Intent)msg.obj; 2221 sendStickyBroadcast(intent); 2222 break; 2223 } 2224 case EVENT_SET_POLICY_DATA_ENABLE: { 2225 final int networkType = msg.arg1; 2226 final boolean enabled = msg.arg2 == ENABLED; 2227 handleSetPolicyDataEnable(networkType, enabled); 2228 break; 2229 } 2230 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 2231 int tag = mEnableFailFastMobileDataTag.get(); 2232 if (msg.arg1 == tag) { 2233 MobileDataStateTracker mobileDst = 2234 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2235 if (mobileDst != null) { 2236 mobileDst.setEnableFailFastMobileData(msg.arg2); 2237 } 2238 } else { 2239 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 2240 + " != tag:" + tag); 2241 } 2242 break; 2243 } 2244 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 2245 handleNetworkSamplingTimeout(); 2246 break; 2247 } 2248 case EVENT_PROXY_HAS_CHANGED: { 2249 handleApplyDefaultProxy((ProxyInfo)msg.obj); 2250 break; 2251 } 2252 case EVENT_REGISTER_NETWORK_FACTORY: { 2253 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 2254 break; 2255 } 2256 case EVENT_UNREGISTER_NETWORK_FACTORY: { 2257 handleUnregisterNetworkFactory((Messenger)msg.obj); 2258 break; 2259 } 2260 case EVENT_REGISTER_NETWORK_AGENT: { 2261 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 2262 break; 2263 } 2264 case EVENT_REGISTER_NETWORK_REQUEST: 2265 case EVENT_REGISTER_NETWORK_LISTENER: { 2266 handleRegisterNetworkRequest(msg); 2267 break; 2268 } 2269 case EVENT_RELEASE_NETWORK_REQUEST: { 2270 handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); 2271 break; 2272 } 2273 case EVENT_SYSTEM_READY: { 2274 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2275 nai.networkMonitor.systemReady = true; 2276 } 2277 break; 2278 } 2279 } 2280 } 2281 } 2282 2283 // javadoc from interface 2284 public int tether(String iface) { 2285 enforceTetherChangePermission(); 2286 2287 if (isTetheringSupported()) { 2288 return mTethering.tether(iface); 2289 } else { 2290 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2291 } 2292 } 2293 2294 // javadoc from interface 2295 public int untether(String iface) { 2296 enforceTetherChangePermission(); 2297 2298 if (isTetheringSupported()) { 2299 return mTethering.untether(iface); 2300 } else { 2301 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2302 } 2303 } 2304 2305 // javadoc from interface 2306 public int getLastTetherError(String iface) { 2307 enforceTetherAccessPermission(); 2308 2309 if (isTetheringSupported()) { 2310 return mTethering.getLastTetherError(iface); 2311 } else { 2312 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2313 } 2314 } 2315 2316 // TODO - proper iface API for selection by property, inspection, etc 2317 public String[] getTetherableUsbRegexs() { 2318 enforceTetherAccessPermission(); 2319 if (isTetheringSupported()) { 2320 return mTethering.getTetherableUsbRegexs(); 2321 } else { 2322 return new String[0]; 2323 } 2324 } 2325 2326 public String[] getTetherableWifiRegexs() { 2327 enforceTetherAccessPermission(); 2328 if (isTetheringSupported()) { 2329 return mTethering.getTetherableWifiRegexs(); 2330 } else { 2331 return new String[0]; 2332 } 2333 } 2334 2335 public String[] getTetherableBluetoothRegexs() { 2336 enforceTetherAccessPermission(); 2337 if (isTetheringSupported()) { 2338 return mTethering.getTetherableBluetoothRegexs(); 2339 } else { 2340 return new String[0]; 2341 } 2342 } 2343 2344 public int setUsbTethering(boolean enable) { 2345 enforceTetherChangePermission(); 2346 if (isTetheringSupported()) { 2347 return mTethering.setUsbTethering(enable); 2348 } else { 2349 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2350 } 2351 } 2352 2353 // TODO - move iface listing, queries, etc to new module 2354 // javadoc from interface 2355 public String[] getTetherableIfaces() { 2356 enforceTetherAccessPermission(); 2357 return mTethering.getTetherableIfaces(); 2358 } 2359 2360 public String[] getTetheredIfaces() { 2361 enforceTetherAccessPermission(); 2362 return mTethering.getTetheredIfaces(); 2363 } 2364 2365 public String[] getTetheringErroredIfaces() { 2366 enforceTetherAccessPermission(); 2367 return mTethering.getErroredIfaces(); 2368 } 2369 2370 public String[] getTetheredDhcpRanges() { 2371 enforceConnectivityInternalPermission(); 2372 return mTethering.getTetheredDhcpRanges(); 2373 } 2374 2375 // if ro.tether.denied = true we default to no tethering 2376 // gservices could set the secure setting to 1 though to enable it on a build where it 2377 // had previously been turned off. 2378 public boolean isTetheringSupported() { 2379 enforceTetherAccessPermission(); 2380 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 2381 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 2382 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0) 2383 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); 2384 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 2385 mTethering.getTetherableWifiRegexs().length != 0 || 2386 mTethering.getTetherableBluetoothRegexs().length != 0) && 2387 mTethering.getUpstreamIfaceTypes().length != 0); 2388 } 2389 2390 // Called when we lose the default network and have no replacement yet. 2391 // This will automatically be cleared after X seconds or a new default network 2392 // becomes CONNECTED, whichever happens first. The timer is started by the 2393 // first caller and not restarted by subsequent callers. 2394 private void requestNetworkTransitionWakelock(String forWhom) { 2395 int serialNum = 0; 2396 synchronized (this) { 2397 if (mNetTransitionWakeLock.isHeld()) return; 2398 serialNum = ++mNetTransitionWakeLockSerialNumber; 2399 mNetTransitionWakeLock.acquire(); 2400 mNetTransitionWakeLockCausedBy = forWhom; 2401 } 2402 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2403 EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), 2404 mNetTransitionWakeLockTimeout); 2405 return; 2406 } 2407 2408 // 100 percent is full good, 0 is full bad. 2409 public void reportInetCondition(int networkType, int percentage) { 2410 if (percentage > 50) return; // don't handle good network reports 2411 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 2412 if (nai != null) reportBadNetwork(nai.network); 2413 } 2414 2415 public void reportBadNetwork(Network network) { 2416 //TODO 2417 } 2418 2419 public ProxyInfo getProxy() { 2420 // this information is already available as a world read/writable jvm property 2421 // so this API change wouldn't have a benifit. It also breaks the passing 2422 // of proxy info to all the JVMs. 2423 // enforceAccessPermission(); 2424 synchronized (mProxyLock) { 2425 ProxyInfo ret = mGlobalProxy; 2426 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 2427 return ret; 2428 } 2429 } 2430 2431 public void setGlobalProxy(ProxyInfo proxyProperties) { 2432 enforceConnectivityInternalPermission(); 2433 2434 synchronized (mProxyLock) { 2435 if (proxyProperties == mGlobalProxy) return; 2436 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 2437 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 2438 2439 String host = ""; 2440 int port = 0; 2441 String exclList = ""; 2442 String pacFileUrl = ""; 2443 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 2444 (proxyProperties.getPacFileUrl() != null))) { 2445 if (!proxyProperties.isValid()) { 2446 if (DBG) 2447 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2448 return; 2449 } 2450 mGlobalProxy = new ProxyInfo(proxyProperties); 2451 host = mGlobalProxy.getHost(); 2452 port = mGlobalProxy.getPort(); 2453 exclList = mGlobalProxy.getExclusionListAsString(); 2454 if (proxyProperties.getPacFileUrl() != null) { 2455 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 2456 } 2457 } else { 2458 mGlobalProxy = null; 2459 } 2460 ContentResolver res = mContext.getContentResolver(); 2461 final long token = Binder.clearCallingIdentity(); 2462 try { 2463 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 2464 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 2465 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 2466 exclList); 2467 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 2468 } finally { 2469 Binder.restoreCallingIdentity(token); 2470 } 2471 } 2472 2473 if (mGlobalProxy == null) { 2474 proxyProperties = mDefaultProxy; 2475 } 2476 sendProxyBroadcast(proxyProperties); 2477 } 2478 2479 private void loadGlobalProxy() { 2480 ContentResolver res = mContext.getContentResolver(); 2481 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 2482 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 2483 String exclList = Settings.Global.getString(res, 2484 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 2485 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 2486 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 2487 ProxyInfo proxyProperties; 2488 if (!TextUtils.isEmpty(pacFileUrl)) { 2489 proxyProperties = new ProxyInfo(pacFileUrl); 2490 } else { 2491 proxyProperties = new ProxyInfo(host, port, exclList); 2492 } 2493 if (!proxyProperties.isValid()) { 2494 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2495 return; 2496 } 2497 2498 synchronized (mProxyLock) { 2499 mGlobalProxy = proxyProperties; 2500 } 2501 } 2502 } 2503 2504 public ProxyInfo getGlobalProxy() { 2505 // this information is already available as a world read/writable jvm property 2506 // so this API change wouldn't have a benifit. It also breaks the passing 2507 // of proxy info to all the JVMs. 2508 // enforceAccessPermission(); 2509 synchronized (mProxyLock) { 2510 return mGlobalProxy; 2511 } 2512 } 2513 2514 private void handleApplyDefaultProxy(ProxyInfo proxy) { 2515 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 2516 && (proxy.getPacFileUrl() == null)) { 2517 proxy = null; 2518 } 2519 synchronized (mProxyLock) { 2520 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 2521 if (mDefaultProxy == proxy) return; // catches repeated nulls 2522 if (proxy != null && !proxy.isValid()) { 2523 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 2524 return; 2525 } 2526 2527 // This call could be coming from the PacManager, containing the port of the local 2528 // proxy. If this new proxy matches the global proxy then copy this proxy to the 2529 // global (to get the correct local port), and send a broadcast. 2530 // TODO: Switch PacManager to have its own message to send back rather than 2531 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 2532 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 2533 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 2534 mGlobalProxy = proxy; 2535 sendProxyBroadcast(mGlobalProxy); 2536 return; 2537 } 2538 mDefaultProxy = proxy; 2539 2540 if (mGlobalProxy != null) return; 2541 if (!mDefaultProxyDisabled) { 2542 sendProxyBroadcast(proxy); 2543 } 2544 } 2545 } 2546 2547 private void handleDeprecatedGlobalHttpProxy() { 2548 String proxy = Settings.Global.getString(mContext.getContentResolver(), 2549 Settings.Global.HTTP_PROXY); 2550 if (!TextUtils.isEmpty(proxy)) { 2551 String data[] = proxy.split(":"); 2552 if (data.length == 0) { 2553 return; 2554 } 2555 2556 String proxyHost = data[0]; 2557 int proxyPort = 8080; 2558 if (data.length > 1) { 2559 try { 2560 proxyPort = Integer.parseInt(data[1]); 2561 } catch (NumberFormatException e) { 2562 return; 2563 } 2564 } 2565 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 2566 setGlobalProxy(p); 2567 } 2568 } 2569 2570 private void sendProxyBroadcast(ProxyInfo proxy) { 2571 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 2572 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 2573 if (DBG) log("sending Proxy Broadcast for " + proxy); 2574 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 2575 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 2576 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2577 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 2578 final long ident = Binder.clearCallingIdentity(); 2579 try { 2580 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2581 } finally { 2582 Binder.restoreCallingIdentity(ident); 2583 } 2584 } 2585 2586 private static class SettingsObserver extends ContentObserver { 2587 private int mWhat; 2588 private Handler mHandler; 2589 SettingsObserver(Handler handler, int what) { 2590 super(handler); 2591 mHandler = handler; 2592 mWhat = what; 2593 } 2594 2595 void observe(Context context) { 2596 ContentResolver resolver = context.getContentResolver(); 2597 resolver.registerContentObserver(Settings.Global.getUriFor( 2598 Settings.Global.HTTP_PROXY), false, this); 2599 } 2600 2601 @Override 2602 public void onChange(boolean selfChange) { 2603 mHandler.obtainMessage(mWhat).sendToTarget(); 2604 } 2605 } 2606 2607 private static void log(String s) { 2608 Slog.d(TAG, s); 2609 } 2610 2611 private static void loge(String s) { 2612 Slog.e(TAG, s); 2613 } 2614 2615 int convertFeatureToNetworkType(int networkType, String feature) { 2616 int usedNetworkType = networkType; 2617 2618 if(networkType == ConnectivityManager.TYPE_MOBILE) { 2619 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 2620 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 2621 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 2622 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 2623 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 2624 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 2625 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 2626 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 2627 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 2628 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 2629 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 2630 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 2631 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 2632 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 2633 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 2634 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { 2635 usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; 2636 } else { 2637 Slog.e(TAG, "Can't match any mobile netTracker!"); 2638 } 2639 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 2640 if (TextUtils.equals(feature, "p2p")) { 2641 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 2642 } else { 2643 Slog.e(TAG, "Can't match any wifi netTracker!"); 2644 } 2645 } else { 2646 Slog.e(TAG, "Unexpected network type"); 2647 } 2648 return usedNetworkType; 2649 } 2650 2651 private static <T> T checkNotNull(T value, String message) { 2652 if (value == null) { 2653 throw new NullPointerException(message); 2654 } 2655 return value; 2656 } 2657 2658 /** 2659 * Prepare for a VPN application. This method is used by VpnDialogs 2660 * and not available in ConnectivityManager. Permissions are checked 2661 * in Vpn class. 2662 * @hide 2663 */ 2664 @Override 2665 public boolean prepareVpn(String oldPackage, String newPackage) { 2666 throwIfLockdownEnabled(); 2667 int user = UserHandle.getUserId(Binder.getCallingUid()); 2668 synchronized(mVpns) { 2669 return mVpns.get(user).prepare(oldPackage, newPackage); 2670 } 2671 } 2672 2673 /** 2674 * Configure a TUN interface and return its file descriptor. Parameters 2675 * are encoded and opaque to this class. This method is used by VpnBuilder 2676 * and not available in ConnectivityManager. Permissions are checked in 2677 * Vpn class. 2678 * @hide 2679 */ 2680 @Override 2681 public ParcelFileDescriptor establishVpn(VpnConfig config) { 2682 throwIfLockdownEnabled(); 2683 int user = UserHandle.getUserId(Binder.getCallingUid()); 2684 synchronized(mVpns) { 2685 return mVpns.get(user).establish(config); 2686 } 2687 } 2688 2689 /** 2690 * Start legacy VPN, controlling native daemons as needed. Creates a 2691 * secondary thread to perform connection work, returning quickly. 2692 */ 2693 @Override 2694 public void startLegacyVpn(VpnProfile profile) { 2695 throwIfLockdownEnabled(); 2696 final LinkProperties egress = getActiveLinkProperties(); 2697 if (egress == null) { 2698 throw new IllegalStateException("Missing active network connection"); 2699 } 2700 int user = UserHandle.getUserId(Binder.getCallingUid()); 2701 synchronized(mVpns) { 2702 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 2703 } 2704 } 2705 2706 /** 2707 * Return the information of the ongoing legacy VPN. This method is used 2708 * by VpnSettings and not available in ConnectivityManager. Permissions 2709 * are checked in Vpn class. 2710 * @hide 2711 */ 2712 @Override 2713 public LegacyVpnInfo getLegacyVpnInfo() { 2714 throwIfLockdownEnabled(); 2715 int user = UserHandle.getUserId(Binder.getCallingUid()); 2716 synchronized(mVpns) { 2717 return mVpns.get(user).getLegacyVpnInfo(); 2718 } 2719 } 2720 2721 /** 2722 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 2723 * not available in ConnectivityManager. 2724 * Permissions are checked in Vpn class. 2725 * @hide 2726 */ 2727 @Override 2728 public VpnConfig getVpnConfig() { 2729 int user = UserHandle.getUserId(Binder.getCallingUid()); 2730 synchronized(mVpns) { 2731 return mVpns.get(user).getVpnConfig(); 2732 } 2733 } 2734 2735 @Override 2736 public boolean updateLockdownVpn() { 2737 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 2738 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 2739 return false; 2740 } 2741 2742 // Tear down existing lockdown if profile was removed 2743 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 2744 if (mLockdownEnabled) { 2745 if (!mKeyStore.isUnlocked()) { 2746 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 2747 return false; 2748 } 2749 2750 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 2751 final VpnProfile profile = VpnProfile.decode( 2752 profileName, mKeyStore.get(Credentials.VPN + profileName)); 2753 int user = UserHandle.getUserId(Binder.getCallingUid()); 2754 synchronized(mVpns) { 2755 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 2756 profile)); 2757 } 2758 } else { 2759 setLockdownTracker(null); 2760 } 2761 2762 return true; 2763 } 2764 2765 /** 2766 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 2767 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 2768 */ 2769 private void setLockdownTracker(LockdownVpnTracker tracker) { 2770 // Shutdown any existing tracker 2771 final LockdownVpnTracker existing = mLockdownTracker; 2772 mLockdownTracker = null; 2773 if (existing != null) { 2774 existing.shutdown(); 2775 } 2776 2777 try { 2778 if (tracker != null) { 2779 mNetd.setFirewallEnabled(true); 2780 mNetd.setFirewallInterfaceRule("lo", true); 2781 mLockdownTracker = tracker; 2782 mLockdownTracker.init(); 2783 } else { 2784 mNetd.setFirewallEnabled(false); 2785 } 2786 } catch (RemoteException e) { 2787 // ignored; NMS lives inside system_server 2788 } 2789 } 2790 2791 private void throwIfLockdownEnabled() { 2792 if (mLockdownEnabled) { 2793 throw new IllegalStateException("Unavailable in lockdown mode"); 2794 } 2795 } 2796 2797 public void supplyMessenger(int networkType, Messenger messenger) { 2798 enforceConnectivityInternalPermission(); 2799 2800 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 2801 mNetTrackers[networkType].supplyMessenger(messenger); 2802 } 2803 } 2804 2805 public int findConnectionTypeForIface(String iface) { 2806 enforceConnectivityInternalPermission(); 2807 2808 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 2809 for (NetworkStateTracker tracker : mNetTrackers) { 2810 if (tracker != null) { 2811 LinkProperties lp = tracker.getLinkProperties(); 2812 if (lp != null && iface.equals(lp.getInterfaceName())) { 2813 return tracker.getNetworkInfo().getType(); 2814 } 2815 } 2816 } 2817 return ConnectivityManager.TYPE_NONE; 2818 } 2819 2820 /** 2821 * Have mobile data fail fast if enabled. 2822 * 2823 * @param enabled DctConstants.ENABLED/DISABLED 2824 */ 2825 private void setEnableFailFastMobileData(int enabled) { 2826 int tag; 2827 2828 if (enabled == DctConstants.ENABLED) { 2829 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 2830 } else { 2831 tag = mEnableFailFastMobileDataTag.get(); 2832 } 2833 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 2834 enabled)); 2835 } 2836 2837 private boolean isMobileDataStateTrackerReady() { 2838 MobileDataStateTracker mdst = 2839 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 2840 return (mdst != null) && (mdst.isReady()); 2841 } 2842 2843 /** 2844 * The ResultReceiver resultCode for checkMobileProvisioning (CMP_RESULT_CODE) 2845 */ 2846 2847 /** 2848 * No connection was possible to the network. 2849 * This is NOT a warm sim. 2850 */ 2851 private static final int CMP_RESULT_CODE_NO_CONNECTION = 0; 2852 2853 /** 2854 * A connection was made to the internet, all is well. 2855 * This is NOT a warm sim. 2856 */ 2857 private static final int CMP_RESULT_CODE_CONNECTABLE = 1; 2858 2859 /** 2860 * A connection was made but no dns server was available to resolve a name to address. 2861 * This is NOT a warm sim since provisioning network is supported. 2862 */ 2863 private static final int CMP_RESULT_CODE_NO_DNS = 2; 2864 2865 /** 2866 * A connection was made but could not open a TCP connection. 2867 * This is NOT a warm sim since provisioning network is supported. 2868 */ 2869 private static final int CMP_RESULT_CODE_NO_TCP_CONNECTION = 3; 2870 2871 /** 2872 * A connection was made but there was a redirection, we appear to be in walled garden. 2873 * This is an indication of a warm sim on a mobile network such as T-Mobile. 2874 */ 2875 private static final int CMP_RESULT_CODE_REDIRECTED = 4; 2876 2877 /** 2878 * The mobile network is a provisioning network. 2879 * This is an indication of a warm sim on a mobile network such as AT&T. 2880 */ 2881 private static final int CMP_RESULT_CODE_PROVISIONING_NETWORK = 5; 2882 2883 /** 2884 * The mobile network is provisioning 2885 */ 2886 private static final int CMP_RESULT_CODE_IS_PROVISIONING = 6; 2887 2888 private AtomicBoolean mIsProvisioningNetwork = new AtomicBoolean(false); 2889 private AtomicBoolean mIsStartingProvisioning = new AtomicBoolean(false); 2890 2891 private AtomicBoolean mIsCheckingMobileProvisioning = new AtomicBoolean(false); 2892 2893 @Override 2894 public int checkMobileProvisioning(int suggestedTimeOutMs) { 2895 int timeOutMs = -1; 2896 if (DBG) log("checkMobileProvisioning: E suggestedTimeOutMs=" + suggestedTimeOutMs); 2897 enforceConnectivityInternalPermission(); 2898 2899 final long token = Binder.clearCallingIdentity(); 2900 try { 2901 timeOutMs = suggestedTimeOutMs; 2902 if (suggestedTimeOutMs > CheckMp.MAX_TIMEOUT_MS) { 2903 timeOutMs = CheckMp.MAX_TIMEOUT_MS; 2904 } 2905 2906 // Check that mobile networks are supported 2907 if (!isNetworkSupported(ConnectivityManager.TYPE_MOBILE) 2908 || !isNetworkSupported(ConnectivityManager.TYPE_MOBILE_HIPRI)) { 2909 if (DBG) log("checkMobileProvisioning: X no mobile network"); 2910 return timeOutMs; 2911 } 2912 2913 // If we're already checking don't do it again 2914 // TODO: Add a queue of results... 2915 if (mIsCheckingMobileProvisioning.getAndSet(true)) { 2916 if (DBG) log("checkMobileProvisioning: X already checking ignore for the moment"); 2917 return timeOutMs; 2918 } 2919 2920 // Start off with mobile notification off 2921 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 2922 2923 CheckMp checkMp = new CheckMp(mContext, this); 2924 CheckMp.CallBack cb = new CheckMp.CallBack() { 2925 @Override 2926 void onComplete(Integer result) { 2927 if (DBG) log("CheckMp.onComplete: result=" + result); 2928 NetworkInfo ni = 2929 mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI].getNetworkInfo(); 2930 switch(result) { 2931 case CMP_RESULT_CODE_CONNECTABLE: 2932 case CMP_RESULT_CODE_NO_CONNECTION: 2933 case CMP_RESULT_CODE_NO_DNS: 2934 case CMP_RESULT_CODE_NO_TCP_CONNECTION: { 2935 if (DBG) log("CheckMp.onComplete: ignore, connected or no connection"); 2936 break; 2937 } 2938 case CMP_RESULT_CODE_REDIRECTED: { 2939 if (DBG) log("CheckMp.onComplete: warm sim"); 2940 String url = getMobileProvisioningUrl(); 2941 if (TextUtils.isEmpty(url)) { 2942 url = getMobileRedirectedProvisioningUrl(); 2943 } 2944 if (TextUtils.isEmpty(url) == false) { 2945 if (DBG) log("CheckMp.onComplete: warm (redirected), url=" + url); 2946 setProvNotificationVisible(true, 2947 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 2948 url); 2949 } else { 2950 if (DBG) log("CheckMp.onComplete: warm (redirected), no url"); 2951 } 2952 break; 2953 } 2954 case CMP_RESULT_CODE_PROVISIONING_NETWORK: { 2955 String url = getMobileProvisioningUrl(); 2956 if (TextUtils.isEmpty(url) == false) { 2957 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), url=" + url); 2958 setProvNotificationVisible(true, 2959 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 2960 url); 2961 // Mark that we've got a provisioning network and 2962 // Disable Mobile Data until user actually starts provisioning. 2963 mIsProvisioningNetwork.set(true); 2964 MobileDataStateTracker mdst = (MobileDataStateTracker) 2965 mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2966 2967 // Disable radio until user starts provisioning 2968 mdst.setRadio(false); 2969 } else { 2970 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), no url"); 2971 } 2972 break; 2973 } 2974 case CMP_RESULT_CODE_IS_PROVISIONING: { 2975 // FIXME: Need to know when provisioning is done. Probably we can 2976 // check the completion status if successful we're done if we 2977 // "timedout" or still connected to provisioning APN turn off data? 2978 if (DBG) log("CheckMp.onComplete: provisioning started"); 2979 mIsStartingProvisioning.set(false); 2980 break; 2981 } 2982 default: { 2983 loge("CheckMp.onComplete: ignore unexpected result=" + result); 2984 break; 2985 } 2986 } 2987 mIsCheckingMobileProvisioning.set(false); 2988 } 2989 }; 2990 CheckMp.Params params = 2991 new CheckMp.Params(checkMp.getDefaultUrl(), timeOutMs, cb); 2992 if (DBG) log("checkMobileProvisioning: params=" + params); 2993 // TODO: Reenable when calls to the now defunct 2994 // MobileDataStateTracker.isProvisioningNetwork() are removed. 2995 // This code should be moved to the Telephony code. 2996 // checkMp.execute(params); 2997 } finally { 2998 Binder.restoreCallingIdentity(token); 2999 if (DBG) log("checkMobileProvisioning: X"); 3000 } 3001 return timeOutMs; 3002 } 3003 3004 static class CheckMp extends 3005 AsyncTask<CheckMp.Params, Void, Integer> { 3006 private static final String CHECKMP_TAG = "CheckMp"; 3007 3008 // adb shell setprop persist.checkmp.testfailures 1 to enable testing failures 3009 private static boolean mTestingFailures; 3010 3011 // Choosing 4 loops as half of them will use HTTPS and the other half HTTP 3012 private static final int MAX_LOOPS = 4; 3013 3014 // Number of milli-seconds to complete all of the retires 3015 public static final int MAX_TIMEOUT_MS = 60000; 3016 3017 // The socket should retry only 5 seconds, the default is longer 3018 private static final int SOCKET_TIMEOUT_MS = 5000; 3019 3020 // Sleep time for network errors 3021 private static final int NET_ERROR_SLEEP_SEC = 3; 3022 3023 // Sleep time for network route establishment 3024 private static final int NET_ROUTE_ESTABLISHMENT_SLEEP_SEC = 3; 3025 3026 // Short sleep time for polling :( 3027 private static final int POLLING_SLEEP_SEC = 1; 3028 3029 private Context mContext; 3030 private ConnectivityService mCs; 3031 private TelephonyManager mTm; 3032 private Params mParams; 3033 3034 /** 3035 * Parameters for AsyncTask.execute 3036 */ 3037 static class Params { 3038 private String mUrl; 3039 private long mTimeOutMs; 3040 private CallBack mCb; 3041 3042 Params(String url, long timeOutMs, CallBack cb) { 3043 mUrl = url; 3044 mTimeOutMs = timeOutMs; 3045 mCb = cb; 3046 } 3047 3048 @Override 3049 public String toString() { 3050 return "{" + " url=" + mUrl + " mTimeOutMs=" + mTimeOutMs + " mCb=" + mCb + "}"; 3051 } 3052 } 3053 3054 // As explained to me by Brian Carlstrom and Kenny Root, Certificates can be 3055 // issued by name or ip address, for Google its by name so when we construct 3056 // this HostnameVerifier we'll pass the original Uri and use it to verify 3057 // the host. If the host name in the original uril fails we'll test the 3058 // hostname parameter just incase things change. 3059 static class CheckMpHostnameVerifier implements HostnameVerifier { 3060 Uri mOrgUri; 3061 3062 CheckMpHostnameVerifier(Uri orgUri) { 3063 mOrgUri = orgUri; 3064 } 3065 3066 @Override 3067 public boolean verify(String hostname, SSLSession session) { 3068 HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier(); 3069 String orgUriHost = mOrgUri.getHost(); 3070 boolean retVal = hv.verify(orgUriHost, session) || hv.verify(hostname, session); 3071 if (DBG) { 3072 log("isMobileOk: hostnameVerify retVal=" + retVal + " hostname=" + hostname 3073 + " orgUriHost=" + orgUriHost); 3074 } 3075 return retVal; 3076 } 3077 } 3078 3079 /** 3080 * The call back object passed in Params. onComplete will be called 3081 * on the main thread. 3082 */ 3083 abstract static class CallBack { 3084 // Called on the main thread. 3085 abstract void onComplete(Integer result); 3086 } 3087 3088 public CheckMp(Context context, ConnectivityService cs) { 3089 if (Build.IS_DEBUGGABLE) { 3090 mTestingFailures = 3091 SystemProperties.getInt("persist.checkmp.testfailures", 0) == 1; 3092 } else { 3093 mTestingFailures = false; 3094 } 3095 3096 mContext = context; 3097 mCs = cs; 3098 3099 // Setup access to TelephonyService we'll be using. 3100 mTm = (TelephonyManager) mContext.getSystemService( 3101 Context.TELEPHONY_SERVICE); 3102 } 3103 3104 /** 3105 * Get the default url to use for the test. 3106 */ 3107 public String getDefaultUrl() { 3108 // See http://go/clientsdns for usage approval 3109 String server = Settings.Global.getString(mContext.getContentResolver(), 3110 Settings.Global.CAPTIVE_PORTAL_SERVER); 3111 if (server == null) { 3112 server = "clients3.google.com"; 3113 } 3114 return "http://" + server + "/generate_204"; 3115 } 3116 3117 /** 3118 * Detect if its possible to connect to the http url. DNS based detection techniques 3119 * do not work at all hotspots. The best way to check is to perform a request to 3120 * a known address that fetches the data we expect. 3121 */ 3122 private synchronized Integer isMobileOk(Params params) { 3123 Integer result = CMP_RESULT_CODE_NO_CONNECTION; 3124 Uri orgUri = Uri.parse(params.mUrl); 3125 Random rand = new Random(); 3126 mParams = params; 3127 3128 if (mCs.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false) { 3129 result = CMP_RESULT_CODE_NO_CONNECTION; 3130 log("isMobileOk: X not mobile capable result=" + result); 3131 return result; 3132 } 3133 3134 if (mCs.mIsStartingProvisioning.get()) { 3135 result = CMP_RESULT_CODE_IS_PROVISIONING; 3136 log("isMobileOk: X is provisioning result=" + result); 3137 return result; 3138 } 3139 3140 // See if we've already determined we've got a provisioning connection, 3141 // if so we don't need to do anything active. 3142 MobileDataStateTracker mdstDefault = (MobileDataStateTracker) 3143 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3144 boolean isDefaultProvisioning = mdstDefault.isProvisioningNetwork(); 3145 log("isMobileOk: isDefaultProvisioning=" + isDefaultProvisioning); 3146 3147 MobileDataStateTracker mdstHipri = (MobileDataStateTracker) 3148 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3149 boolean isHipriProvisioning = mdstHipri.isProvisioningNetwork(); 3150 log("isMobileOk: isHipriProvisioning=" + isHipriProvisioning); 3151 3152 if (isDefaultProvisioning || isHipriProvisioning) { 3153 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3154 log("isMobileOk: X default || hipri is provisioning result=" + result); 3155 return result; 3156 } 3157 3158 try { 3159 // Continue trying to connect until time has run out 3160 long endTime = SystemClock.elapsedRealtime() + params.mTimeOutMs; 3161 3162 if (!mCs.isMobileDataStateTrackerReady()) { 3163 // Wait for MobileDataStateTracker to be ready. 3164 if (DBG) log("isMobileOk: mdst is not ready"); 3165 while(SystemClock.elapsedRealtime() < endTime) { 3166 if (mCs.isMobileDataStateTrackerReady()) { 3167 // Enable fail fast as we'll do retries here and use a 3168 // hipri connection so the default connection stays active. 3169 if (DBG) log("isMobileOk: mdst ready, enable fail fast of mobile data"); 3170 mCs.setEnableFailFastMobileData(DctConstants.ENABLED); 3171 break; 3172 } 3173 sleep(POLLING_SLEEP_SEC); 3174 } 3175 } 3176 3177 log("isMobileOk: start hipri url=" + params.mUrl); 3178 3179 // First wait until we can start using hipri 3180 Binder binder = new Binder(); 3181/* 3182 while(SystemClock.elapsedRealtime() < endTime) { 3183 int ret = mCs.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3184 Phone.FEATURE_ENABLE_HIPRI, binder); 3185 if ((ret == PhoneConstants.APN_ALREADY_ACTIVE) 3186 || (ret == PhoneConstants.APN_REQUEST_STARTED)) { 3187 log("isMobileOk: hipri started"); 3188 break; 3189 } 3190 if (VDBG) log("isMobileOk: hipri not started yet"); 3191 result = CMP_RESULT_CODE_NO_CONNECTION; 3192 sleep(POLLING_SLEEP_SEC); 3193 } 3194*/ 3195 // Continue trying to connect until time has run out 3196 while(SystemClock.elapsedRealtime() < endTime) { 3197 try { 3198 // Wait for hipri to connect. 3199 // TODO: Don't poll and handle situation where hipri fails 3200 // because default is retrying. See b/9569540 3201 NetworkInfo.State state = mCs 3202 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3203 if (state != NetworkInfo.State.CONNECTED) { 3204 if (true/*VDBG*/) { 3205 log("isMobileOk: not connected ni=" + 3206 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3207 } 3208 sleep(POLLING_SLEEP_SEC); 3209 result = CMP_RESULT_CODE_NO_CONNECTION; 3210 continue; 3211 } 3212 3213 // Hipri has started check if this is a provisioning url 3214 MobileDataStateTracker mdst = (MobileDataStateTracker) 3215 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3216 if (mdst.isProvisioningNetwork()) { 3217 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3218 if (DBG) log("isMobileOk: X isProvisioningNetwork result=" + result); 3219 return result; 3220 } else { 3221 if (DBG) log("isMobileOk: isProvisioningNetwork is false, continue"); 3222 } 3223 3224 // Get of the addresses associated with the url host. We need to use the 3225 // address otherwise HttpURLConnection object will use the name to get 3226 // the addresses and will try every address but that will bypass the 3227 // route to host we setup and the connection could succeed as the default 3228 // interface might be connected to the internet via wifi or other interface. 3229 InetAddress[] addresses; 3230 try { 3231 addresses = InetAddress.getAllByName(orgUri.getHost()); 3232 } catch (UnknownHostException e) { 3233 result = CMP_RESULT_CODE_NO_DNS; 3234 log("isMobileOk: X UnknownHostException result=" + result); 3235 return result; 3236 } 3237 log("isMobileOk: addresses=" + inetAddressesToString(addresses)); 3238 3239 // Get the type of addresses supported by this link 3240 LinkProperties lp = mCs.getLinkPropertiesForTypeInternal( 3241 ConnectivityManager.TYPE_MOBILE_HIPRI); 3242 boolean linkHasIpv4 = lp.hasIPv4Address(); 3243 boolean linkHasIpv6 = lp.hasGlobalIPv6Address(); 3244 log("isMobileOk: linkHasIpv4=" + linkHasIpv4 3245 + " linkHasIpv6=" + linkHasIpv6); 3246 3247 final ArrayList<InetAddress> validAddresses = 3248 new ArrayList<InetAddress>(addresses.length); 3249 3250 for (InetAddress addr : addresses) { 3251 if (((addr instanceof Inet4Address) && linkHasIpv4) || 3252 ((addr instanceof Inet6Address) && linkHasIpv6)) { 3253 validAddresses.add(addr); 3254 } 3255 } 3256 3257 if (validAddresses.size() == 0) { 3258 return CMP_RESULT_CODE_NO_CONNECTION; 3259 } 3260 3261 int addrTried = 0; 3262 while (true) { 3263 // Loop through at most MAX_LOOPS valid addresses or until 3264 // we run out of time 3265 if (addrTried++ >= MAX_LOOPS) { 3266 log("isMobileOk: too many loops tried - giving up"); 3267 break; 3268 } 3269 if (SystemClock.elapsedRealtime() >= endTime) { 3270 log("isMobileOk: spend too much time - giving up"); 3271 break; 3272 } 3273 3274 InetAddress hostAddr = validAddresses.get(rand.nextInt( 3275 validAddresses.size())); 3276 3277 // Make a route to host so we check the specific interface. 3278 if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI, 3279 hostAddr.getAddress())) { 3280 // Wait a short time to be sure the route is established ?? 3281 log("isMobileOk:" 3282 + " wait to establish route to hostAddr=" + hostAddr); 3283 sleep(NET_ROUTE_ESTABLISHMENT_SLEEP_SEC); 3284 } else { 3285 log("isMobileOk:" 3286 + " could not establish route to hostAddr=" + hostAddr); 3287 // Wait a short time before the next attempt 3288 sleep(NET_ERROR_SLEEP_SEC); 3289 continue; 3290 } 3291 3292 // Rewrite the url to have numeric address to use the specific route 3293 // using http for half the attempts and https for the other half. 3294 // Doing https first and http second as on a redirected walled garden 3295 // such as t-mobile uses we get a SocketTimeoutException: "SSL 3296 // handshake timed out" which we declare as 3297 // CMP_RESULT_CODE_NO_TCP_CONNECTION. We could change this, but by 3298 // having http second we will be using logic used for some time. 3299 URL newUrl; 3300 String scheme = (addrTried <= (MAX_LOOPS/2)) ? "https" : "http"; 3301 newUrl = new URL(scheme, hostAddr.getHostAddress(), 3302 orgUri.getPath()); 3303 log("isMobileOk: newUrl=" + newUrl); 3304 3305 HttpURLConnection urlConn = null; 3306 try { 3307 // Open the connection set the request headers and get the response 3308 urlConn = (HttpURLConnection)newUrl.openConnection( 3309 java.net.Proxy.NO_PROXY); 3310 if (scheme.equals("https")) { 3311 ((HttpsURLConnection)urlConn).setHostnameVerifier( 3312 new CheckMpHostnameVerifier(orgUri)); 3313 } 3314 urlConn.setInstanceFollowRedirects(false); 3315 urlConn.setConnectTimeout(SOCKET_TIMEOUT_MS); 3316 urlConn.setReadTimeout(SOCKET_TIMEOUT_MS); 3317 urlConn.setUseCaches(false); 3318 urlConn.setAllowUserInteraction(false); 3319 // Set the "Connection" to "Close" as by default "Keep-Alive" 3320 // is used which is useless in this case. 3321 urlConn.setRequestProperty("Connection", "close"); 3322 int responseCode = urlConn.getResponseCode(); 3323 3324 // For debug display the headers 3325 Map<String, List<String>> headers = urlConn.getHeaderFields(); 3326 log("isMobileOk: headers=" + headers); 3327 3328 // Close the connection 3329 urlConn.disconnect(); 3330 urlConn = null; 3331 3332 if (mTestingFailures) { 3333 // Pretend no connection, this tests using http and https 3334 result = CMP_RESULT_CODE_NO_CONNECTION; 3335 log("isMobileOk: TESTING_FAILURES, pretend no connction"); 3336 continue; 3337 } 3338 3339 if (responseCode == 204) { 3340 // Return 3341 result = CMP_RESULT_CODE_CONNECTABLE; 3342 log("isMobileOk: X got expected responseCode=" + responseCode 3343 + " result=" + result); 3344 return result; 3345 } else { 3346 // Retry to be sure this was redirected, we've gotten 3347 // occasions where a server returned 200 even though 3348 // the device didn't have a "warm" sim. 3349 log("isMobileOk: not expected responseCode=" + responseCode); 3350 // TODO - it would be nice in the single-address case to do 3351 // another DNS resolve here, but flushing the cache is a bit 3352 // heavy-handed. 3353 result = CMP_RESULT_CODE_REDIRECTED; 3354 } 3355 } catch (Exception e) { 3356 log("isMobileOk: HttpURLConnection Exception" + e); 3357 result = CMP_RESULT_CODE_NO_TCP_CONNECTION; 3358 if (urlConn != null) { 3359 urlConn.disconnect(); 3360 urlConn = null; 3361 } 3362 sleep(NET_ERROR_SLEEP_SEC); 3363 continue; 3364 } 3365 } 3366 log("isMobileOk: X loops|timed out result=" + result); 3367 return result; 3368 } catch (Exception e) { 3369 log("isMobileOk: Exception e=" + e); 3370 continue; 3371 } 3372 } 3373 log("isMobileOk: timed out"); 3374 } finally { 3375 log("isMobileOk: F stop hipri"); 3376 mCs.setEnableFailFastMobileData(DctConstants.DISABLED); 3377// mCs.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3378// Phone.FEATURE_ENABLE_HIPRI); 3379 3380 // Wait for hipri to disconnect. 3381 long endTime = SystemClock.elapsedRealtime() + 5000; 3382 3383 while(SystemClock.elapsedRealtime() < endTime) { 3384 NetworkInfo.State state = mCs 3385 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3386 if (state != NetworkInfo.State.DISCONNECTED) { 3387 if (VDBG) { 3388 log("isMobileOk: connected ni=" + 3389 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3390 } 3391 sleep(POLLING_SLEEP_SEC); 3392 continue; 3393 } 3394 } 3395 3396 log("isMobileOk: X result=" + result); 3397 } 3398 return result; 3399 } 3400 3401 @Override 3402 protected Integer doInBackground(Params... params) { 3403 return isMobileOk(params[0]); 3404 } 3405 3406 @Override 3407 protected void onPostExecute(Integer result) { 3408 log("onPostExecute: result=" + result); 3409 if ((mParams != null) && (mParams.mCb != null)) { 3410 mParams.mCb.onComplete(result); 3411 } 3412 } 3413 3414 private String inetAddressesToString(InetAddress[] addresses) { 3415 StringBuffer sb = new StringBuffer(); 3416 boolean firstTime = true; 3417 for(InetAddress addr : addresses) { 3418 if (firstTime) { 3419 firstTime = false; 3420 } else { 3421 sb.append(","); 3422 } 3423 sb.append(addr); 3424 } 3425 return sb.toString(); 3426 } 3427 3428 private void printNetworkInfo() { 3429 boolean hasIccCard = mTm.hasIccCard(); 3430 int simState = mTm.getSimState(); 3431 log("hasIccCard=" + hasIccCard 3432 + " simState=" + simState); 3433 NetworkInfo[] ni = mCs.getAllNetworkInfo(); 3434 if (ni != null) { 3435 log("ni.length=" + ni.length); 3436 for (NetworkInfo netInfo: ni) { 3437 log("netInfo=" + netInfo.toString()); 3438 } 3439 } else { 3440 log("no network info ni=null"); 3441 } 3442 } 3443 3444 /** 3445 * Sleep for a few seconds then return. 3446 * @param seconds 3447 */ 3448 private static void sleep(int seconds) { 3449 long stopTime = System.nanoTime() + (seconds * 1000000000); 3450 long sleepTime; 3451 while ((sleepTime = stopTime - System.nanoTime()) > 0) { 3452 try { 3453 Thread.sleep(sleepTime / 1000000); 3454 } catch (InterruptedException ignored) { 3455 } 3456 } 3457 } 3458 3459 private static void log(String s) { 3460 Slog.d(ConnectivityService.TAG, "[" + CHECKMP_TAG + "] " + s); 3461 } 3462 } 3463 3464 // TODO: Move to ConnectivityManager and make public? 3465 private static final String CONNECTED_TO_PROVISIONING_NETWORK_ACTION = 3466 "com.android.server.connectivityservice.CONNECTED_TO_PROVISIONING_NETWORK_ACTION"; 3467 3468 private BroadcastReceiver mProvisioningReceiver = new BroadcastReceiver() { 3469 @Override 3470 public void onReceive(Context context, Intent intent) { 3471 if (intent.getAction().equals(CONNECTED_TO_PROVISIONING_NETWORK_ACTION)) { 3472 handleMobileProvisioningAction(intent.getStringExtra("EXTRA_URL")); 3473 } 3474 } 3475 }; 3476 3477 private void handleMobileProvisioningAction(String url) { 3478 // Mark notification as not visible 3479 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3480 3481 // Check airplane mode 3482 boolean isAirplaneModeOn = Settings.System.getInt(mContext.getContentResolver(), 3483 Settings.Global.AIRPLANE_MODE_ON, 0) == 1; 3484 // If provisioning network and not in airplane mode handle as a special case, 3485 // otherwise launch browser with the intent directly. 3486 if (mIsProvisioningNetwork.get() && !isAirplaneModeOn) { 3487 if (DBG) log("handleMobileProvisioningAction: on prov network enable then launch"); 3488 mIsProvisioningNetwork.set(false); 3489// mIsStartingProvisioning.set(true); 3490// MobileDataStateTracker mdst = (MobileDataStateTracker) 3491// mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3492 // Radio was disabled on CMP_RESULT_CODE_PROVISIONING_NETWORK, enable it here 3493// mdst.setRadio(true); 3494// mdst.setEnableFailFastMobileData(DctConstants.ENABLED); 3495// mdst.enableMobileProvisioning(url); 3496 } else { 3497 if (DBG) log("handleMobileProvisioningAction: not prov network"); 3498 mIsProvisioningNetwork.set(false); 3499 // Check for apps that can handle provisioning first 3500 Intent provisioningIntent = new Intent(TelephonyIntents.ACTION_CARRIER_SETUP); 3501 provisioningIntent.addCategory(TelephonyIntents.CATEGORY_MCCMNC_PREFIX 3502 + mTelephonyManager.getSimOperator()); 3503 if (mContext.getPackageManager().resolveActivity(provisioningIntent, 0 /* flags */) 3504 != null) { 3505 provisioningIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3506 Intent.FLAG_ACTIVITY_NEW_TASK); 3507 mContext.startActivity(provisioningIntent); 3508 } else { 3509 // If no apps exist, use standard URL ACTION_VIEW method 3510 Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, 3511 Intent.CATEGORY_APP_BROWSER); 3512 newIntent.setData(Uri.parse(url)); 3513 newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3514 Intent.FLAG_ACTIVITY_NEW_TASK); 3515 try { 3516 mContext.startActivity(newIntent); 3517 } catch (ActivityNotFoundException e) { 3518 loge("handleMobileProvisioningAction: startActivity failed" + e); 3519 } 3520 } 3521 } 3522 } 3523 3524 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 3525 private volatile boolean mIsNotificationVisible = false; 3526 3527 private void setProvNotificationVisible(boolean visible, int networkType, String extraInfo, 3528 String url) { 3529 if (DBG) { 3530 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 3531 + " extraInfo=" + extraInfo + " url=" + url); 3532 } 3533 Intent intent = null; 3534 PendingIntent pendingIntent = null; 3535 if (visible) { 3536 switch (networkType) { 3537 case ConnectivityManager.TYPE_WIFI: 3538 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3539 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3540 Intent.FLAG_ACTIVITY_NEW_TASK); 3541 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3542 break; 3543 case ConnectivityManager.TYPE_MOBILE: 3544 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3545 intent = new Intent(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 3546 intent.putExtra("EXTRA_URL", url); 3547 intent.setFlags(0); 3548 pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 3549 break; 3550 default: 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 } 3557 } 3558 // Concatenate the range of types onto the range of NetIDs. 3559 int id = MAX_NET_ID + 1 + (networkType - ConnectivityManager.TYPE_NONE); 3560 setProvNotificationVisibleIntent(visible, id, networkType, extraInfo, pendingIntent); 3561 } 3562 3563 /** 3564 * Show or hide network provisioning notificaitons. 3565 * 3566 * @param id an identifier that uniquely identifies this notification. This must match 3567 * between show and hide calls. We use the NetID value but for legacy callers 3568 * we concatenate the range of types with the range of NetIDs. 3569 */ 3570 private void setProvNotificationVisibleIntent(boolean visible, int id, int networkType, 3571 String extraInfo, PendingIntent intent) { 3572 if (DBG) { 3573 log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + 3574 networkType + " extraInfo=" + extraInfo); 3575 } 3576 3577 Resources r = Resources.getSystem(); 3578 NotificationManager notificationManager = (NotificationManager) mContext 3579 .getSystemService(Context.NOTIFICATION_SERVICE); 3580 3581 if (visible) { 3582 CharSequence title; 3583 CharSequence details; 3584 int icon; 3585 Notification notification = new Notification(); 3586 switch (networkType) { 3587 case ConnectivityManager.TYPE_WIFI: 3588 title = r.getString(R.string.wifi_available_sign_in, 0); 3589 details = r.getString(R.string.network_available_sign_in_detailed, 3590 extraInfo); 3591 icon = R.drawable.stat_notify_wifi_in_range; 3592 break; 3593 case ConnectivityManager.TYPE_MOBILE: 3594 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3595 title = r.getString(R.string.network_available_sign_in, 0); 3596 // TODO: Change this to pull from NetworkInfo once a printable 3597 // name has been added to it 3598 details = mTelephonyManager.getNetworkOperatorName(); 3599 icon = R.drawable.stat_notify_rssi_in_range; 3600 break; 3601 default: 3602 title = r.getString(R.string.network_available_sign_in, 0); 3603 details = r.getString(R.string.network_available_sign_in_detailed, 3604 extraInfo); 3605 icon = R.drawable.stat_notify_rssi_in_range; 3606 break; 3607 } 3608 3609 notification.when = 0; 3610 notification.icon = icon; 3611 notification.flags = Notification.FLAG_AUTO_CANCEL; 3612 notification.tickerText = title; 3613 notification.color = mContext.getResources().getColor( 3614 com.android.internal.R.color.system_notification_accent_color); 3615 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 3616 notification.contentIntent = intent; 3617 3618 try { 3619 notificationManager.notify(NOTIFICATION_ID, id, notification); 3620 } catch (NullPointerException npe) { 3621 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 3622 npe.printStackTrace(); 3623 } 3624 } else { 3625 try { 3626 notificationManager.cancel(NOTIFICATION_ID, id); 3627 } catch (NullPointerException npe) { 3628 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 3629 npe.printStackTrace(); 3630 } 3631 } 3632 mIsNotificationVisible = visible; 3633 } 3634 3635 /** Location to an updatable file listing carrier provisioning urls. 3636 * An example: 3637 * 3638 * <?xml version="1.0" encoding="utf-8"?> 3639 * <provisioningUrls> 3640 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 3641 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 3642 * </provisioningUrls> 3643 */ 3644 private static final String PROVISIONING_URL_PATH = 3645 "/data/misc/radio/provisioning_urls.xml"; 3646 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 3647 3648 /** XML tag for root element. */ 3649 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 3650 /** XML tag for individual url */ 3651 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 3652 /** XML tag for redirected url */ 3653 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 3654 /** XML attribute for mcc */ 3655 private static final String ATTR_MCC = "mcc"; 3656 /** XML attribute for mnc */ 3657 private static final String ATTR_MNC = "mnc"; 3658 3659 private static final int REDIRECTED_PROVISIONING = 1; 3660 private static final int PROVISIONING = 2; 3661 3662 private String getProvisioningUrlBaseFromFile(int type) { 3663 FileReader fileReader = null; 3664 XmlPullParser parser = null; 3665 Configuration config = mContext.getResources().getConfiguration(); 3666 String tagType; 3667 3668 switch (type) { 3669 case PROVISIONING: 3670 tagType = TAG_PROVISIONING_URL; 3671 break; 3672 case REDIRECTED_PROVISIONING: 3673 tagType = TAG_REDIRECTED_URL; 3674 break; 3675 default: 3676 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 3677 type); 3678 } 3679 3680 try { 3681 fileReader = new FileReader(mProvisioningUrlFile); 3682 parser = Xml.newPullParser(); 3683 parser.setInput(fileReader); 3684 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 3685 3686 while (true) { 3687 XmlUtils.nextElement(parser); 3688 3689 String element = parser.getName(); 3690 if (element == null) break; 3691 3692 if (element.equals(tagType)) { 3693 String mcc = parser.getAttributeValue(null, ATTR_MCC); 3694 try { 3695 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 3696 String mnc = parser.getAttributeValue(null, ATTR_MNC); 3697 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 3698 parser.next(); 3699 if (parser.getEventType() == XmlPullParser.TEXT) { 3700 return parser.getText(); 3701 } 3702 } 3703 } 3704 } catch (NumberFormatException e) { 3705 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 3706 } 3707 } 3708 } 3709 return null; 3710 } catch (FileNotFoundException e) { 3711 loge("Carrier Provisioning Urls file not found"); 3712 } catch (XmlPullParserException e) { 3713 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 3714 } catch (IOException e) { 3715 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 3716 } finally { 3717 if (fileReader != null) { 3718 try { 3719 fileReader.close(); 3720 } catch (IOException e) {} 3721 } 3722 } 3723 return null; 3724 } 3725 3726 @Override 3727 public String getMobileRedirectedProvisioningUrl() { 3728 enforceConnectivityInternalPermission(); 3729 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 3730 if (TextUtils.isEmpty(url)) { 3731 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 3732 } 3733 return url; 3734 } 3735 3736 @Override 3737 public String getMobileProvisioningUrl() { 3738 enforceConnectivityInternalPermission(); 3739 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 3740 if (TextUtils.isEmpty(url)) { 3741 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 3742 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 3743 } else { 3744 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 3745 } 3746 // populate the iccid, imei and phone number in the provisioning url. 3747 if (!TextUtils.isEmpty(url)) { 3748 String phoneNumber = mTelephonyManager.getLine1Number(); 3749 if (TextUtils.isEmpty(phoneNumber)) { 3750 phoneNumber = "0000000000"; 3751 } 3752 url = String.format(url, 3753 mTelephonyManager.getSimSerialNumber() /* ICCID */, 3754 mTelephonyManager.getDeviceId() /* IMEI */, 3755 phoneNumber /* Phone numer */); 3756 } 3757 3758 return url; 3759 } 3760 3761 @Override 3762 public void setProvisioningNotificationVisible(boolean visible, int networkType, 3763 String extraInfo, String url) { 3764 enforceConnectivityInternalPermission(); 3765 setProvNotificationVisible(visible, networkType, extraInfo, url); 3766 } 3767 3768 @Override 3769 public void setAirplaneMode(boolean enable) { 3770 enforceConnectivityInternalPermission(); 3771 final long ident = Binder.clearCallingIdentity(); 3772 try { 3773 final ContentResolver cr = mContext.getContentResolver(); 3774 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 3775 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 3776 intent.putExtra("state", enable); 3777 mContext.sendBroadcast(intent); 3778 } finally { 3779 Binder.restoreCallingIdentity(ident); 3780 } 3781 } 3782 3783 private void onUserStart(int userId) { 3784 synchronized(mVpns) { 3785 Vpn userVpn = mVpns.get(userId); 3786 if (userVpn != null) { 3787 loge("Starting user already has a VPN"); 3788 return; 3789 } 3790 userVpn = new Vpn(mHandler.getLooper(), mContext, mNetd, this, userId); 3791 mVpns.put(userId, userVpn); 3792 } 3793 } 3794 3795 private void onUserStop(int userId) { 3796 synchronized(mVpns) { 3797 Vpn userVpn = mVpns.get(userId); 3798 if (userVpn == null) { 3799 loge("Stopping user has no VPN"); 3800 return; 3801 } 3802 mVpns.delete(userId); 3803 } 3804 } 3805 3806 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 3807 @Override 3808 public void onReceive(Context context, Intent intent) { 3809 final String action = intent.getAction(); 3810 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3811 if (userId == UserHandle.USER_NULL) return; 3812 3813 if (Intent.ACTION_USER_STARTING.equals(action)) { 3814 onUserStart(userId); 3815 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 3816 onUserStop(userId); 3817 } 3818 } 3819 }; 3820 3821 @Override 3822 public LinkQualityInfo getLinkQualityInfo(int networkType) { 3823 enforceAccessPermission(); 3824 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 3825 return mNetTrackers[networkType].getLinkQualityInfo(); 3826 } else { 3827 return null; 3828 } 3829 } 3830 3831 @Override 3832 public LinkQualityInfo getActiveLinkQualityInfo() { 3833 enforceAccessPermission(); 3834 if (isNetworkTypeValid(mActiveDefaultNetwork) && 3835 mNetTrackers[mActiveDefaultNetwork] != null) { 3836 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 3837 } else { 3838 return null; 3839 } 3840 } 3841 3842 @Override 3843 public LinkQualityInfo[] getAllLinkQualityInfo() { 3844 enforceAccessPermission(); 3845 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 3846 for (NetworkStateTracker tracker : mNetTrackers) { 3847 if (tracker != null) { 3848 LinkQualityInfo li = tracker.getLinkQualityInfo(); 3849 if (li != null) { 3850 result.add(li); 3851 } 3852 } 3853 } 3854 3855 return result.toArray(new LinkQualityInfo[result.size()]); 3856 } 3857 3858 /* Infrastructure for network sampling */ 3859 3860 private void handleNetworkSamplingTimeout() { 3861 3862 log("Sampling interval elapsed, updating statistics .."); 3863 3864 // initialize list of interfaces .. 3865 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 3866 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 3867 for (NetworkStateTracker tracker : mNetTrackers) { 3868 if (tracker != null) { 3869 String ifaceName = tracker.getNetworkInterfaceName(); 3870 if (ifaceName != null) { 3871 mapIfaceToSample.put(ifaceName, null); 3872 } 3873 } 3874 } 3875 3876 // Read samples for all interfaces 3877 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 3878 3879 // process samples for all networks 3880 for (NetworkStateTracker tracker : mNetTrackers) { 3881 if (tracker != null) { 3882 String ifaceName = tracker.getNetworkInterfaceName(); 3883 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 3884 if (ss != null) { 3885 // end the previous sampling cycle 3886 tracker.stopSampling(ss); 3887 // start a new sampling cycle .. 3888 tracker.startSampling(ss); 3889 } 3890 } 3891 } 3892 3893 log("Done."); 3894 3895 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 3896 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 3897 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 3898 3899 if (DBG) log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 3900 3901 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 3902 } 3903 3904 /** 3905 * Sets a network sampling alarm. 3906 */ 3907 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 3908 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 3909 int alarmType; 3910 if (Resources.getSystem().getBoolean( 3911 R.bool.config_networkSamplingWakesDevice)) { 3912 alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP; 3913 } else { 3914 alarmType = AlarmManager.ELAPSED_REALTIME; 3915 } 3916 mAlarmManager.set(alarmType, wakeupTime, intent); 3917 } 3918 3919 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 3920 new HashMap<Messenger, NetworkFactoryInfo>(); 3921 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 3922 new HashMap<NetworkRequest, NetworkRequestInfo>(); 3923 3924 private static class NetworkFactoryInfo { 3925 public final String name; 3926 public final Messenger messenger; 3927 public final AsyncChannel asyncChannel; 3928 3929 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 3930 this.name = name; 3931 this.messenger = messenger; 3932 this.asyncChannel = asyncChannel; 3933 } 3934 } 3935 3936 /** 3937 * Tracks info about the requester. 3938 * Also used to notice when the calling process dies so we can self-expire 3939 */ 3940 private class NetworkRequestInfo implements IBinder.DeathRecipient { 3941 static final boolean REQUEST = true; 3942 static final boolean LISTEN = false; 3943 3944 final NetworkRequest request; 3945 IBinder mBinder; 3946 final int mPid; 3947 final int mUid; 3948 final Messenger messenger; 3949 final boolean isRequest; 3950 3951 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 3952 super(); 3953 messenger = m; 3954 request = r; 3955 mBinder = binder; 3956 mPid = getCallingPid(); 3957 mUid = getCallingUid(); 3958 this.isRequest = isRequest; 3959 3960 try { 3961 mBinder.linkToDeath(this, 0); 3962 } catch (RemoteException e) { 3963 binderDied(); 3964 } 3965 } 3966 3967 void unlinkDeathRecipient() { 3968 mBinder.unlinkToDeath(this, 0); 3969 } 3970 3971 public void binderDied() { 3972 log("ConnectivityService NetworkRequestInfo binderDied(" + 3973 request + ", " + mBinder + ")"); 3974 releaseNetworkRequest(request); 3975 } 3976 3977 public String toString() { 3978 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 3979 mPid + " for " + request; 3980 } 3981 } 3982 3983 @Override 3984 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 3985 Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { 3986 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 3987 == false) { 3988 enforceConnectivityInternalPermission(); 3989 } else { 3990 enforceChangePermission(); 3991 } 3992 3993 networkCapabilities = new NetworkCapabilities(networkCapabilities); 3994 3995 // if UID is restricted, don't allow them to bring up metered APNs 3996 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED) 3997 == false) { 3998 final int uidRules; 3999 synchronized(mRulesLock) { 4000 uidRules = mUidRules.get(Binder.getCallingUid(), RULE_ALLOW_ALL); 4001 } 4002 if ((uidRules & RULE_REJECT_METERED) != 0) { 4003 // we could silently fail or we can filter the available nets to only give 4004 // them those they have access to. Chose the more useful 4005 networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 4006 } 4007 } 4008 4009 if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { 4010 throw new IllegalArgumentException("Bad timeout specified"); 4011 } 4012 NetworkRequest networkRequest = new NetworkRequest(networkCapabilities, legacyType, 4013 nextNetworkRequestId()); 4014 if (DBG) log("requestNetwork for " + networkRequest); 4015 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4016 NetworkRequestInfo.REQUEST); 4017 4018 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 4019 if (timeoutMs > 0) { 4020 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 4021 nri), timeoutMs); 4022 } 4023 return networkRequest; 4024 } 4025 4026 @Override 4027 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 4028 PendingIntent operation) { 4029 // TODO 4030 return null; 4031 } 4032 4033 @Override 4034 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 4035 Messenger messenger, IBinder binder) { 4036 enforceAccessPermission(); 4037 4038 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 4039 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 4040 if (DBG) log("listenForNetwork for " + networkRequest); 4041 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4042 NetworkRequestInfo.LISTEN); 4043 4044 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 4045 return networkRequest; 4046 } 4047 4048 @Override 4049 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 4050 PendingIntent operation) { 4051 } 4052 4053 @Override 4054 public void releaseNetworkRequest(NetworkRequest networkRequest) { 4055 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), 4056 0, networkRequest)); 4057 } 4058 4059 @Override 4060 public void registerNetworkFactory(Messenger messenger, String name) { 4061 enforceConnectivityInternalPermission(); 4062 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 4063 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 4064 } 4065 4066 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 4067 if (VDBG) log("Got NetworkFactory Messenger for " + nfi.name); 4068 mNetworkFactoryInfos.put(nfi.messenger, nfi); 4069 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 4070 } 4071 4072 @Override 4073 public void unregisterNetworkFactory(Messenger messenger) { 4074 enforceConnectivityInternalPermission(); 4075 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 4076 } 4077 4078 private void handleUnregisterNetworkFactory(Messenger messenger) { 4079 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 4080 if (nfi == null) { 4081 if (VDBG) log("Failed to find Messenger in unregisterNetworkFactory"); 4082 return; 4083 } 4084 if (VDBG) log("unregisterNetworkFactory for " + nfi.name); 4085 } 4086 4087 /** 4088 * NetworkAgentInfo supporting a request by requestId. 4089 * These have already been vetted (their Capabilities satisfy the request) 4090 * and the are the highest scored network available. 4091 * the are keyed off the Requests requestId. 4092 */ 4093 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 4094 new SparseArray<NetworkAgentInfo>(); 4095 4096 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 4097 new SparseArray<NetworkAgentInfo>(); 4098 4099 // NetworkAgentInfo keyed off its connecting messenger 4100 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 4101 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 4102 new HashMap<Messenger, NetworkAgentInfo>(); 4103 4104 private final NetworkRequest mDefaultRequest; 4105 4106 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 4107 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 4108 } 4109 4110 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 4111 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 4112 int currentScore, NetworkMisc networkMisc) { 4113 enforceConnectivityInternalPermission(); 4114 4115 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), nextNetId(), 4116 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 4117 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler, 4118 networkMisc); 4119 synchronized (this) { 4120 nai.networkMonitor.systemReady = mSystemReady; 4121 } 4122 if (VDBG) log("registerNetworkAgent " + nai); 4123 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 4124 } 4125 4126 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 4127 if (VDBG) log("Got NetworkAgent Messenger"); 4128 mNetworkAgentInfos.put(na.messenger, na); 4129 synchronized (mNetworkForNetId) { 4130 mNetworkForNetId.put(na.network.netId, na); 4131 } 4132 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 4133 NetworkInfo networkInfo = na.networkInfo; 4134 na.networkInfo = null; 4135 updateNetworkInfo(na, networkInfo); 4136 } 4137 4138 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 4139 LinkProperties newLp = networkAgent.linkProperties; 4140 int netId = networkAgent.network.netId; 4141 4142 updateInterfaces(newLp, oldLp, netId); 4143 updateMtu(newLp, oldLp); 4144 updateTcpBufferSizes(networkAgent); 4145 // TODO - figure out what to do for clat 4146// for (LinkProperties lp : newLp.getStackedLinks()) { 4147// updateMtu(lp, null); 4148// } 4149 final boolean flushDns = updateRoutes(newLp, oldLp, netId); 4150 updateDnses(newLp, oldLp, netId, flushDns); 4151 updateClat(newLp, oldLp, networkAgent); 4152 } 4153 4154 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { 4155 // Update 464xlat state. 4156 if (mClat.requiresClat(na)) { 4157 4158 // If the connection was previously using clat, but is not using it now, stop the clat 4159 // daemon. Normally, this happens automatically when the connection disconnects, but if 4160 // the disconnect is not reported, or if the connection's LinkProperties changed for 4161 // some other reason (e.g., handoff changes the IP addresses on the link), it would 4162 // still be running. If it's not running, then stopping it is a no-op. 4163 if (Nat464Xlat.isRunningClat(oldLp) && !Nat464Xlat.isRunningClat(newLp)) { 4164 mClat.stopClat(); 4165 } 4166 // If the link requires clat to be running, then start the daemon now. 4167 if (na.networkInfo.isConnected()) { 4168 mClat.startClat(na); 4169 } else { 4170 mClat.stopClat(); 4171 } 4172 } 4173 } 4174 4175 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 4176 CompareResult<String> interfaceDiff = new CompareResult<String>(); 4177 if (oldLp != null) { 4178 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 4179 } else if (newLp != null) { 4180 interfaceDiff.added = newLp.getAllInterfaceNames(); 4181 } 4182 for (String iface : interfaceDiff.added) { 4183 try { 4184 mNetd.addInterfaceToNetwork(iface, netId); 4185 } catch (Exception e) { 4186 loge("Exception adding interface: " + e); 4187 } 4188 } 4189 for (String iface : interfaceDiff.removed) { 4190 try { 4191 mNetd.removeInterfaceFromNetwork(iface, netId); 4192 } catch (Exception e) { 4193 loge("Exception removing interface: " + e); 4194 } 4195 } 4196 } 4197 4198 /** 4199 * Have netd update routes from oldLp to newLp. 4200 * @return true if routes changed between oldLp and newLp 4201 */ 4202 private boolean updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 4203 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 4204 if (oldLp != null) { 4205 routeDiff = oldLp.compareAllRoutes(newLp); 4206 } else if (newLp != null) { 4207 routeDiff.added = newLp.getAllRoutes(); 4208 } 4209 4210 // add routes before removing old in case it helps with continuous connectivity 4211 4212 // do this twice, adding non-nexthop routes first, then routes they are dependent on 4213 for (RouteInfo route : routeDiff.added) { 4214 if (route.hasGateway()) continue; 4215 try { 4216 mNetd.addRoute(netId, route); 4217 } catch (Exception e) { 4218 loge("Exception in addRoute for non-gateway: " + e); 4219 } 4220 } 4221 for (RouteInfo route : routeDiff.added) { 4222 if (route.hasGateway() == false) continue; 4223 try { 4224 mNetd.addRoute(netId, route); 4225 } catch (Exception e) { 4226 loge("Exception in addRoute for gateway: " + e); 4227 } 4228 } 4229 4230 for (RouteInfo route : routeDiff.removed) { 4231 try { 4232 mNetd.removeRoute(netId, route); 4233 } catch (Exception e) { 4234 loge("Exception in removeRoute: " + e); 4235 } 4236 } 4237 return !routeDiff.added.isEmpty() || !routeDiff.removed.isEmpty(); 4238 } 4239 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId, boolean flush) { 4240 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 4241 Collection<InetAddress> dnses = newLp.getDnsServers(); 4242 if (dnses.size() == 0 && mDefaultDns != null) { 4243 dnses = new ArrayList(); 4244 dnses.add(mDefaultDns); 4245 if (DBG) { 4246 loge("no dns provided for netId " + netId + ", so using defaults"); 4247 } 4248 } 4249 try { 4250 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 4251 newLp.getDomains()); 4252 } catch (Exception e) { 4253 loge("Exception in setDnsServersForNetwork: " + e); 4254 } 4255 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 4256 if (defaultNai != null && defaultNai.network.netId == netId) { 4257 setDefaultDnsSystemProperties(dnses); 4258 } 4259 flushVmDnsCache(); 4260 } else if (flush) { 4261 try { 4262 mNetd.flushNetworkDnsCache(netId); 4263 } catch (Exception e) { 4264 loge("Exception in flushNetworkDnsCache: " + e); 4265 } 4266 flushVmDnsCache(); 4267 } 4268 } 4269 4270 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 4271 int last = 0; 4272 for (InetAddress dns : dnses) { 4273 ++last; 4274 String key = "net.dns" + last; 4275 String value = dns.getHostAddress(); 4276 SystemProperties.set(key, value); 4277 } 4278 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 4279 String key = "net.dns" + i; 4280 SystemProperties.set(key, ""); 4281 } 4282 mNumDnsEntries = last; 4283 } 4284 4285 4286 private void updateCapabilities(NetworkAgentInfo networkAgent, 4287 NetworkCapabilities networkCapabilities) { 4288 // TODO - what else here? Verify still satisfies everybody? 4289 // Check if satisfies somebody new? call callbacks? 4290 synchronized (networkAgent) { 4291 networkAgent.networkCapabilities = networkCapabilities; 4292 } 4293 } 4294 4295 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 4296 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 4297 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 4298 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 4299 networkRequest); 4300 } 4301 } 4302 4303 private void callCallbackForRequest(NetworkRequestInfo nri, 4304 NetworkAgentInfo networkAgent, int notificationType) { 4305 if (nri.messenger == null) return; // Default request has no msgr 4306 Object o; 4307 int a1 = 0; 4308 int a2 = 0; 4309 switch (notificationType) { 4310 case ConnectivityManager.CALLBACK_LOSING: 4311 a1 = 30 * 1000; // TODO - read this from NetworkMonitor 4312 // fall through 4313 case ConnectivityManager.CALLBACK_PRECHECK: 4314 case ConnectivityManager.CALLBACK_AVAILABLE: 4315 case ConnectivityManager.CALLBACK_LOST: 4316 case ConnectivityManager.CALLBACK_CAP_CHANGED: 4317 case ConnectivityManager.CALLBACK_IP_CHANGED: { 4318 o = new NetworkRequest(nri.request); 4319 a2 = networkAgent.network.netId; 4320 break; 4321 } 4322 case ConnectivityManager.CALLBACK_UNAVAIL: 4323 case ConnectivityManager.CALLBACK_RELEASED: { 4324 o = new NetworkRequest(nri.request); 4325 break; 4326 } 4327 default: { 4328 loge("Unknown notificationType " + notificationType); 4329 return; 4330 } 4331 } 4332 Message msg = Message.obtain(); 4333 msg.arg1 = a1; 4334 msg.arg2 = a2; 4335 msg.obj = o; 4336 msg.what = notificationType; 4337 try { 4338 if (VDBG) log("sending notification " + notificationType + " for " + nri.request); 4339 nri.messenger.send(msg); 4340 } catch (RemoteException e) { 4341 // may occur naturally in the race of binder death. 4342 loge("RemoteException caught trying to send a callback msg for " + nri.request); 4343 } 4344 } 4345 4346 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 4347 if (oldNetwork == null) { 4348 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 4349 return; 4350 } 4351 if (DBG) log("handleLingerComplete for " + oldNetwork.name()); 4352 if (DBG) { 4353 if (oldNetwork.networkRequests.size() != 0) { 4354 loge("Dead network still had " + oldNetwork.networkRequests.size() + " requests"); 4355 } 4356 } 4357 oldNetwork.asyncChannel.disconnect(); 4358 } 4359 4360 private void makeDefault(NetworkAgentInfo newNetwork) { 4361 if (VDBG) log("Switching to new default network: " + newNetwork); 4362 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4363 setupDataActivityTracking(newNetwork); 4364 try { 4365 mNetd.setDefaultNetId(newNetwork.network.netId); 4366 } catch (Exception e) { 4367 loge("Exception setting default network :" + e); 4368 } 4369 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 4370 updateTcpBufferSizes(newNetwork); 4371 } 4372 4373 private void handleConnectionValidated(NetworkAgentInfo newNetwork) { 4374 if (newNetwork == null) { 4375 loge("Unknown NetworkAgentInfo in handleConnectionValidated"); 4376 return; 4377 } 4378 boolean keep = newNetwork.isVPN(); 4379 boolean isNewDefault = false; 4380 if (DBG) log("handleConnectionValidated for "+newNetwork.name()); 4381 // check if any NetworkRequest wants this NetworkAgent 4382 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 4383 if (VDBG) log(" new Network has: " + newNetwork.networkCapabilities); 4384 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 4385 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 4386 if (newNetwork == currentNetwork) { 4387 if (VDBG) log("Network " + newNetwork.name() + " was already satisfying" + 4388 " request " + nri.request.requestId + ". No change."); 4389 keep = true; 4390 continue; 4391 } 4392 4393 // check if it satisfies the NetworkCapabilities 4394 if (VDBG) log(" checking if request is satisfied: " + nri.request); 4395 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 4396 newNetwork.networkCapabilities)) { 4397 if (!nri.isRequest) { 4398 newNetwork.addRequest(nri.request); 4399 continue; 4400 } 4401 // next check if it's better than any current network we're using for 4402 // this request 4403 if (VDBG) { 4404 log("currentScore = " + 4405 (currentNetwork != null ? currentNetwork.currentScore : 0) + 4406 ", newScore = " + newNetwork.currentScore); 4407 } 4408 if (currentNetwork == null || 4409 currentNetwork.currentScore < newNetwork.currentScore) { 4410 if (currentNetwork != null) { 4411 if (VDBG) log(" accepting network in place of " + currentNetwork.name()); 4412 currentNetwork.networkRequests.remove(nri.request.requestId); 4413 currentNetwork.networkLingered.add(nri.request); 4414 affectedNetworks.add(currentNetwork); 4415 } else { 4416 if (VDBG) log(" accepting network in place of null"); 4417 } 4418 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 4419 newNetwork.addRequest(nri.request); 4420 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 4421 mLegacyTypeTracker.add(nri.request.legacyType, newNetwork); 4422 } 4423 keep = true; 4424 // TODO - this could get expensive if we have alot of requests for this 4425 // network. Think about if there is a way to reduce this. Push 4426 // netid->request mapping to each factory? 4427 sendUpdatedScoreToFactories(nri.request, newNetwork.currentScore); 4428 if (mDefaultRequest.requestId == nri.request.requestId) { 4429 isNewDefault = true; 4430 updateActiveDefaultNetwork(newNetwork); 4431 if (newNetwork.linkProperties != null) { 4432 updateTcpBufferSizes(newNetwork); 4433 setDefaultDnsSystemProperties( 4434 newNetwork.linkProperties.getDnsServers()); 4435 } else { 4436 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 4437 } 4438 // Maintain the illusion: since the legacy API only 4439 // understands one network at a time, we must pretend 4440 // that the current default network disconnected before 4441 // the new one connected. 4442 if (currentNetwork != null) { 4443 mLegacyTypeTracker.remove(currentNetwork.networkInfo.getType(), 4444 currentNetwork); 4445 } 4446 mDefaultInetConditionPublished = 100; 4447 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 4448 } 4449 } 4450 } 4451 } 4452 for (NetworkAgentInfo nai : affectedNetworks) { 4453 boolean teardown = !nai.isVPN(); 4454 for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { 4455 NetworkRequest nr = nai.networkRequests.valueAt(i); 4456 try { 4457 if (mNetworkRequests.get(nr).isRequest) { 4458 teardown = false; 4459 } 4460 } catch (Exception e) { 4461 loge("Request " + nr + " not found in mNetworkRequests."); 4462 loge(" it came from request list of " + nai.name()); 4463 } 4464 } 4465 if (teardown) { 4466 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 4467 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 4468 } else { 4469 // not going to linger, so kill the list of linger networks.. only 4470 // notify them of linger if it happens as the result of gaining another, 4471 // but if they transition and old network stays up, don't tell them of linger 4472 // or very delayed loss 4473 nai.networkLingered.clear(); 4474 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 4475 } 4476 } 4477 if (keep) { 4478 if (isNewDefault) { 4479 makeDefault(newNetwork); 4480 synchronized (ConnectivityService.this) { 4481 // have a new default network, release the transition wakelock in 4482 // a second if it's held. The second pause is to allow apps 4483 // to reconnect over the new network 4484 if (mNetTransitionWakeLock.isHeld()) { 4485 mHandler.sendMessageDelayed(mHandler.obtainMessage( 4486 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 4487 mNetTransitionWakeLockSerialNumber, 0), 4488 1000); 4489 } 4490 } 4491 } 4492 4493 // Notify battery stats service about this network, both the normal 4494 // interface and any stacked links. 4495 try { 4496 final IBatteryStats bs = BatteryStatsService.getService(); 4497 final int type = newNetwork.networkInfo.getType(); 4498 4499 final String baseIface = newNetwork.linkProperties.getInterfaceName(); 4500 bs.noteNetworkInterfaceType(baseIface, type); 4501 for (LinkProperties stacked : newNetwork.linkProperties.getStackedLinks()) { 4502 final String stackedIface = stacked.getInterfaceName(); 4503 bs.noteNetworkInterfaceType(stackedIface, type); 4504 NetworkStatsFactory.noteStackedIface(stackedIface, baseIface); 4505 } 4506 } catch (RemoteException ignored) { 4507 } 4508 4509 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 4510 } else { 4511 if (DBG && newNetwork.networkRequests.size() != 0) { 4512 loge("tearing down network with live requests:"); 4513 for (int i=0; i < newNetwork.networkRequests.size(); i++) { 4514 loge(" " + newNetwork.networkRequests.valueAt(i)); 4515 } 4516 } 4517 if (VDBG) log("Validated network turns out to be unwanted. Tear it down."); 4518 newNetwork.asyncChannel.disconnect(); 4519 } 4520 } 4521 4522 4523 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 4524 NetworkInfo.State state = newInfo.getState(); 4525 NetworkInfo oldInfo = null; 4526 synchronized (networkAgent) { 4527 oldInfo = networkAgent.networkInfo; 4528 networkAgent.networkInfo = newInfo; 4529 } 4530 if (networkAgent.isVPN() && mLockdownTracker != null) { 4531 mLockdownTracker.onVpnStateChanged(newInfo); 4532 } 4533 4534 if (oldInfo != null && oldInfo.getState() == state) { 4535 if (VDBG) log("ignoring duplicate network state non-change"); 4536 return; 4537 } 4538 if (DBG) { 4539 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 4540 (oldInfo == null ? "null" : oldInfo.getState()) + 4541 " to " + state); 4542 } 4543 4544 if (state == NetworkInfo.State.CONNECTED && !networkAgent.created) { 4545 try { 4546 // This should never fail. Specifying an already in use NetID will cause failure. 4547 if (networkAgent.isVPN()) { 4548 mNetd.createVirtualNetwork(networkAgent.network.netId, 4549 !networkAgent.linkProperties.getDnsServers().isEmpty(), 4550 (networkAgent.networkMisc == null || 4551 !networkAgent.networkMisc.allowBypass)); 4552 } else { 4553 mNetd.createPhysicalNetwork(networkAgent.network.netId); 4554 } 4555 } catch (Exception e) { 4556 loge("Error creating network " + networkAgent.network.netId + ": " 4557 + e.getMessage()); 4558 return; 4559 } 4560 networkAgent.created = true; 4561 updateLinkProperties(networkAgent, null); 4562 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 4563 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 4564 if (networkAgent.isVPN()) { 4565 // Temporarily disable the default proxy (not global). 4566 synchronized (mProxyLock) { 4567 if (!mDefaultProxyDisabled) { 4568 mDefaultProxyDisabled = true; 4569 if (mGlobalProxy == null && mDefaultProxy != null) { 4570 sendProxyBroadcast(null); 4571 } 4572 } 4573 } 4574 // TODO: support proxy per network. 4575 } 4576 // Make default network if we have no default. Any network is better than no network. 4577 if (mNetworkForRequestId.get(mDefaultRequest.requestId) == null && 4578 networkAgent.isVPN() == false && 4579 mDefaultRequest.networkCapabilities.satisfiedByNetworkCapabilities( 4580 networkAgent.networkCapabilities)) { 4581 makeDefault(networkAgent); 4582 } 4583 } else if (state == NetworkInfo.State.DISCONNECTED || 4584 state == NetworkInfo.State.SUSPENDED) { 4585 networkAgent.asyncChannel.disconnect(); 4586 if (networkAgent.isVPN()) { 4587 synchronized (mProxyLock) { 4588 if (mDefaultProxyDisabled) { 4589 mDefaultProxyDisabled = false; 4590 if (mGlobalProxy == null && mDefaultProxy != null) { 4591 sendProxyBroadcast(mDefaultProxy); 4592 } 4593 } 4594 } 4595 } 4596 } 4597 } 4598 4599 private void updateNetworkScore(NetworkAgentInfo nai, int score) { 4600 if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); 4601 4602 nai.currentScore = score; 4603 4604 // TODO - This will not do the right thing if this network is lowering 4605 // its score and has requests that can be served by other 4606 // currently-active networks, or if the network is increasing its 4607 // score and other networks have requests that can be better served 4608 // by this network. 4609 // 4610 // Really we want to see if any of our requests migrate to other 4611 // active/lingered networks and if any other requests migrate to us (depending 4612 // on increasing/decreasing currentScore. That's a bit of work and probably our 4613 // score checking/network allocation code needs to be modularized so we can understand 4614 // (see handleConnectionValided for an example). 4615 // 4616 // As a first order approx, lets just advertise the new score to factories. If 4617 // somebody can beat it they will nominate a network and our normal net replacement 4618 // code will fire. 4619 for (int i = 0; i < nai.networkRequests.size(); i++) { 4620 NetworkRequest nr = nai.networkRequests.valueAt(i); 4621 sendUpdatedScoreToFactories(nr, score); 4622 } 4623 } 4624 4625 // notify only this one new request of the current state 4626 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 4627 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 4628 // TODO - read state from monitor to decide what to send. 4629// if (nai.networkMonitor.isLingering()) { 4630// notifyType = NetworkCallbacks.LOSING; 4631// } else if (nai.networkMonitor.isEvaluating()) { 4632// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 4633// } 4634 callCallbackForRequest(nri, nai, notifyType); 4635 } 4636 4637 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 4638 // The NetworkInfo we actually send out has no bearing on the real 4639 // state of affairs. For example, if the default connection is mobile, 4640 // and a request for HIPRI has just gone away, we need to pretend that 4641 // HIPRI has just disconnected. So we need to set the type to HIPRI and 4642 // the state to DISCONNECTED, even though the network is of type MOBILE 4643 // and is still connected. 4644 NetworkInfo info = new NetworkInfo(nai.networkInfo); 4645 info.setType(type); 4646 if (connected) { 4647 info.setDetailedState(DetailedState.CONNECTED, null, info.getExtraInfo()); 4648 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 4649 } else { 4650 info.setDetailedState(DetailedState.DISCONNECTED, null, info.getExtraInfo()); 4651 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 4652 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 4653 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 4654 if (info.isFailover()) { 4655 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 4656 nai.networkInfo.setFailover(false); 4657 } 4658 if (info.getReason() != null) { 4659 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 4660 } 4661 if (info.getExtraInfo() != null) { 4662 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 4663 } 4664 NetworkAgentInfo newDefaultAgent = null; 4665 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 4666 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 4667 if (newDefaultAgent != null) { 4668 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 4669 newDefaultAgent.networkInfo); 4670 } else { 4671 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 4672 } 4673 } 4674 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 4675 mDefaultInetConditionPublished); 4676 final Intent immediateIntent = new Intent(intent); 4677 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 4678 sendStickyBroadcast(immediateIntent); 4679 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 4680 if (newDefaultAgent != null) { 4681 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 4682 getConnectivityChangeDelay()); 4683 } 4684 } 4685 } 4686 4687 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 4688 if (VDBG) log("notifyType " + notifyType + " for " + networkAgent.name()); 4689 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 4690 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 4691 NetworkRequestInfo nri = mNetworkRequests.get(nr); 4692 if (VDBG) log(" sending notification for " + nr); 4693 callCallbackForRequest(nri, networkAgent, notifyType); 4694 } 4695 } 4696 4697 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 4698 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4699 if (nai != null) { 4700 synchronized (nai) { 4701 return new LinkProperties(nai.linkProperties); 4702 } 4703 } 4704 return new LinkProperties(); 4705 } 4706 4707 private NetworkInfo getNetworkInfoForType(int networkType) { 4708 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 4709 return null; 4710 4711 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4712 if (nai != null) { 4713 NetworkInfo result = new NetworkInfo(nai.networkInfo); 4714 result.setType(networkType); 4715 return result; 4716 } else { 4717 return new NetworkInfo(networkType, 0, "Unknown", ""); 4718 } 4719 } 4720 4721 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 4722 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4723 if (nai != null) { 4724 synchronized (nai) { 4725 return new NetworkCapabilities(nai.networkCapabilities); 4726 } 4727 } 4728 return new NetworkCapabilities(); 4729 } 4730 4731 @Override 4732 public boolean addVpnAddress(String address, int prefixLength) { 4733 throwIfLockdownEnabled(); 4734 int user = UserHandle.getUserId(Binder.getCallingUid()); 4735 synchronized (mVpns) { 4736 return mVpns.get(user).addAddress(address, prefixLength); 4737 } 4738 } 4739 4740 @Override 4741 public boolean removeVpnAddress(String address, int prefixLength) { 4742 throwIfLockdownEnabled(); 4743 int user = UserHandle.getUserId(Binder.getCallingUid()); 4744 synchronized (mVpns) { 4745 return mVpns.get(user).removeAddress(address, prefixLength); 4746 } 4747 } 4748} 4749