ConnectivityService.java revision bdb1bdf57b8c4348a02fc085b05b7b0f57abe7b5
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 void assignNextNetId(NetworkAgentInfo nai) { 760 synchronized (mNetworkForNetId) { 761 for (int i = MIN_NET_ID; i <= MAX_NET_ID; i++) { 762 int netId = mNextNetId; 763 if (++mNextNetId > MAX_NET_ID) mNextNetId = MIN_NET_ID; 764 // Make sure NetID unused. http://b/16815182 765 if (mNetworkForNetId.get(netId) == null) { 766 nai.network = new Network(netId); 767 mNetworkForNetId.put(netId, nai); 768 return; 769 } 770 } 771 } 772 throw new IllegalStateException("No free netIds"); 773 } 774 775 private int getConnectivityChangeDelay() { 776 final ContentResolver cr = mContext.getContentResolver(); 777 778 /** Check system properties for the default value then use secure settings value, if any. */ 779 int defaultDelay = SystemProperties.getInt( 780 "conn." + Settings.Global.CONNECTIVITY_CHANGE_DELAY, 781 ConnectivityManager.CONNECTIVITY_CHANGE_DELAY_DEFAULT); 782 return Settings.Global.getInt(cr, Settings.Global.CONNECTIVITY_CHANGE_DELAY, 783 defaultDelay); 784 } 785 786 private boolean teardown(NetworkStateTracker netTracker) { 787 if (netTracker.teardown()) { 788 netTracker.setTeardownRequested(true); 789 return true; 790 } else { 791 return false; 792 } 793 } 794 795 /** 796 * Check if UID should be blocked from using the network represented by the 797 * given {@link NetworkStateTracker}. 798 */ 799 private boolean isNetworkBlocked(int networkType, int uid) { 800 final boolean networkCostly; 801 final int uidRules; 802 803 LinkProperties lp = getLinkPropertiesForType(networkType); 804 final String iface = (lp == null ? "" : lp.getInterfaceName()); 805 synchronized (mRulesLock) { 806 networkCostly = mMeteredIfaces.contains(iface); 807 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 808 } 809 810 if (networkCostly && (uidRules & RULE_REJECT_METERED) != 0) { 811 return true; 812 } 813 814 // no restrictive rules; network is visible 815 return false; 816 } 817 818 /** 819 * Return a filtered {@link NetworkInfo}, potentially marked 820 * {@link DetailedState#BLOCKED} based on 821 * {@link #isNetworkBlocked}. 822 */ 823 private NetworkInfo getFilteredNetworkInfo(int networkType, int uid) { 824 NetworkInfo info = getNetworkInfoForType(networkType); 825 return getFilteredNetworkInfo(info, networkType, uid); 826 } 827 828 private NetworkInfo getFilteredNetworkInfo(NetworkInfo info, int networkType, int uid) { 829 if (isNetworkBlocked(networkType, uid)) { 830 // network is blocked; clone and override state 831 info = new NetworkInfo(info); 832 info.setDetailedState(DetailedState.BLOCKED, null, null); 833 if (VDBG) log("returning Blocked NetworkInfo"); 834 } 835 if (mLockdownTracker != null) { 836 info = mLockdownTracker.augmentNetworkInfo(info); 837 if (VDBG) log("returning Locked NetworkInfo"); 838 } 839 return info; 840 } 841 842 /** 843 * Return NetworkInfo for the active (i.e., connected) network interface. 844 * It is assumed that at most one network is active at a time. If more 845 * than one is active, it is indeterminate which will be returned. 846 * @return the info for the active network, or {@code null} if none is 847 * active 848 */ 849 @Override 850 public NetworkInfo getActiveNetworkInfo() { 851 enforceAccessPermission(); 852 final int uid = Binder.getCallingUid(); 853 return getNetworkInfo(mActiveDefaultNetwork, uid); 854 } 855 856 // only called when the default request is satisfied 857 private void updateActiveDefaultNetwork(NetworkAgentInfo nai) { 858 if (nai != null) { 859 mActiveDefaultNetwork = nai.networkInfo.getType(); 860 } else { 861 mActiveDefaultNetwork = TYPE_NONE; 862 } 863 } 864 865 /** 866 * Find the first Provisioning network. 867 * 868 * @return NetworkInfo or null if none. 869 */ 870 private NetworkInfo getProvisioningNetworkInfo() { 871 enforceAccessPermission(); 872 873 // Find the first Provisioning Network 874 NetworkInfo provNi = null; 875 for (NetworkInfo ni : getAllNetworkInfo()) { 876 if (ni.isConnectedToProvisioningNetwork()) { 877 provNi = ni; 878 break; 879 } 880 } 881 if (DBG) log("getProvisioningNetworkInfo: X provNi=" + provNi); 882 return provNi; 883 } 884 885 /** 886 * Find the first Provisioning network or the ActiveDefaultNetwork 887 * if there is no Provisioning network 888 * 889 * @return NetworkInfo or null if none. 890 */ 891 @Override 892 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 893 enforceAccessPermission(); 894 895 NetworkInfo provNi = getProvisioningNetworkInfo(); 896 if (provNi == null) { 897 final int uid = Binder.getCallingUid(); 898 provNi = getNetworkInfo(mActiveDefaultNetwork, uid); 899 } 900 if (DBG) log("getProvisioningOrActiveNetworkInfo: X provNi=" + provNi); 901 return provNi; 902 } 903 904 public NetworkInfo getActiveNetworkInfoUnfiltered() { 905 enforceAccessPermission(); 906 if (isNetworkTypeValid(mActiveDefaultNetwork)) { 907 return getNetworkInfoForType(mActiveDefaultNetwork); 908 } 909 return null; 910 } 911 912 @Override 913 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 914 enforceConnectivityInternalPermission(); 915 return getNetworkInfo(mActiveDefaultNetwork, uid); 916 } 917 918 @Override 919 public NetworkInfo getNetworkInfo(int networkType) { 920 enforceAccessPermission(); 921 final int uid = Binder.getCallingUid(); 922 return getNetworkInfo(networkType, uid); 923 } 924 925 private NetworkInfo getNetworkInfo(int networkType, int uid) { 926 NetworkInfo info = null; 927 if (isNetworkTypeValid(networkType)) { 928 if (getNetworkInfoForType(networkType) != null) { 929 info = getFilteredNetworkInfo(networkType, uid); 930 } 931 } 932 return info; 933 } 934 935 @Override 936 public NetworkInfo getNetworkInfoForNetwork(Network network) { 937 enforceAccessPermission(); 938 if (network == null) return null; 939 940 final int uid = Binder.getCallingUid(); 941 NetworkAgentInfo nai = null; 942 synchronized (mNetworkForNetId) { 943 nai = mNetworkForNetId.get(network.netId); 944 } 945 if (nai == null) return null; 946 synchronized (nai) { 947 if (nai.networkInfo == null) return null; 948 949 return getFilteredNetworkInfo(nai.networkInfo, nai.networkInfo.getType(), uid); 950 } 951 } 952 953 @Override 954 public NetworkInfo[] getAllNetworkInfo() { 955 enforceAccessPermission(); 956 final int uid = Binder.getCallingUid(); 957 final ArrayList<NetworkInfo> result = Lists.newArrayList(); 958 synchronized (mRulesLock) { 959 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 960 networkType++) { 961 if (getNetworkInfoForType(networkType) != null) { 962 result.add(getFilteredNetworkInfo(networkType, uid)); 963 } 964 } 965 } 966 return result.toArray(new NetworkInfo[result.size()]); 967 } 968 969 @Override 970 public Network[] getAllNetworks() { 971 enforceAccessPermission(); 972 final ArrayList<Network> result = new ArrayList(); 973 synchronized (mNetworkForNetId) { 974 for (int i = 0; i < mNetworkForNetId.size(); i++) { 975 result.add(new Network(mNetworkForNetId.valueAt(i).network)); 976 } 977 } 978 return result.toArray(new Network[result.size()]); 979 } 980 981 @Override 982 public boolean isNetworkSupported(int networkType) { 983 enforceAccessPermission(); 984 return (isNetworkTypeValid(networkType) && (getNetworkInfoForType(networkType) != null)); 985 } 986 987 /** 988 * Return LinkProperties for the active (i.e., connected) default 989 * network interface. It is assumed that at most one default network 990 * is active at a time. If more than one is active, it is indeterminate 991 * which will be returned. 992 * @return the ip properties for the active network, or {@code null} if 993 * none is active 994 */ 995 @Override 996 public LinkProperties getActiveLinkProperties() { 997 return getLinkPropertiesForType(mActiveDefaultNetwork); 998 } 999 1000 @Override 1001 public LinkProperties getLinkPropertiesForType(int networkType) { 1002 enforceAccessPermission(); 1003 if (isNetworkTypeValid(networkType)) { 1004 return getLinkPropertiesForTypeInternal(networkType); 1005 } 1006 return null; 1007 } 1008 1009 // TODO - this should be ALL networks 1010 @Override 1011 public LinkProperties getLinkProperties(Network network) { 1012 enforceAccessPermission(); 1013 NetworkAgentInfo nai = null; 1014 synchronized (mNetworkForNetId) { 1015 nai = mNetworkForNetId.get(network.netId); 1016 } 1017 1018 if (nai != null) { 1019 synchronized (nai) { 1020 return new LinkProperties(nai.linkProperties); 1021 } 1022 } 1023 return null; 1024 } 1025 1026 @Override 1027 public NetworkCapabilities getNetworkCapabilities(Network network) { 1028 enforceAccessPermission(); 1029 NetworkAgentInfo nai = null; 1030 synchronized (mNetworkForNetId) { 1031 nai = mNetworkForNetId.get(network.netId); 1032 } 1033 if (nai != null) { 1034 synchronized (nai) { 1035 return new NetworkCapabilities(nai.networkCapabilities); 1036 } 1037 } 1038 return null; 1039 } 1040 1041 @Override 1042 public NetworkState[] getAllNetworkState() { 1043 enforceAccessPermission(); 1044 final int uid = Binder.getCallingUid(); 1045 final ArrayList<NetworkState> result = Lists.newArrayList(); 1046 synchronized (mRulesLock) { 1047 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1048 networkType++) { 1049 if (getNetworkInfoForType(networkType) != null) { 1050 final NetworkInfo info = getFilteredNetworkInfo(networkType, uid); 1051 final LinkProperties lp = getLinkPropertiesForTypeInternal(networkType); 1052 final NetworkCapabilities netcap = getNetworkCapabilitiesForType(networkType); 1053 result.add(new NetworkState(info, lp, netcap)); 1054 } 1055 } 1056 } 1057 return result.toArray(new NetworkState[result.size()]); 1058 } 1059 1060 private NetworkState getNetworkStateUnchecked(int networkType) { 1061 if (isNetworkTypeValid(networkType)) { 1062 NetworkInfo info = getNetworkInfoForType(networkType); 1063 if (info != null) { 1064 return new NetworkState(info, 1065 getLinkPropertiesForTypeInternal(networkType), 1066 getNetworkCapabilitiesForType(networkType)); 1067 } 1068 } 1069 return null; 1070 } 1071 1072 @Override 1073 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1074 enforceAccessPermission(); 1075 1076 final long token = Binder.clearCallingIdentity(); 1077 try { 1078 final NetworkState state = getNetworkStateUnchecked(mActiveDefaultNetwork); 1079 if (state != null) { 1080 try { 1081 return mPolicyManager.getNetworkQuotaInfo(state); 1082 } catch (RemoteException e) { 1083 } 1084 } 1085 return null; 1086 } finally { 1087 Binder.restoreCallingIdentity(token); 1088 } 1089 } 1090 1091 @Override 1092 public boolean isActiveNetworkMetered() { 1093 enforceAccessPermission(); 1094 final long token = Binder.clearCallingIdentity(); 1095 try { 1096 return isNetworkMeteredUnchecked(mActiveDefaultNetwork); 1097 } finally { 1098 Binder.restoreCallingIdentity(token); 1099 } 1100 } 1101 1102 private boolean isNetworkMeteredUnchecked(int networkType) { 1103 final NetworkState state = getNetworkStateUnchecked(networkType); 1104 if (state != null) { 1105 try { 1106 return mPolicyManager.isNetworkMetered(state); 1107 } catch (RemoteException e) { 1108 } 1109 } 1110 return false; 1111 } 1112 1113 private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { 1114 @Override 1115 public void interfaceClassDataActivityChanged(String label, boolean active, long tsNanos) { 1116 int deviceType = Integer.parseInt(label); 1117 sendDataActivityBroadcast(deviceType, active, tsNanos); 1118 } 1119 }; 1120 1121 /** 1122 * Ensure that a network route exists to deliver traffic to the specified 1123 * host via the specified network interface. 1124 * @param networkType the type of the network over which traffic to the 1125 * specified host is to be routed 1126 * @param hostAddress the IP address of the host to which the route is 1127 * desired 1128 * @return {@code true} on success, {@code false} on failure 1129 */ 1130 public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress) { 1131 enforceChangePermission(); 1132 if (mProtectedNetworks.contains(networkType)) { 1133 enforceConnectivityInternalPermission(); 1134 } 1135 1136 InetAddress addr; 1137 try { 1138 addr = InetAddress.getByAddress(hostAddress); 1139 } catch (UnknownHostException e) { 1140 if (DBG) log("requestRouteToHostAddress got " + e.toString()); 1141 return false; 1142 } 1143 1144 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1145 if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); 1146 return false; 1147 } 1148 1149 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1150 if (nai == null) { 1151 if (mLegacyTypeTracker.isTypeSupported(networkType) == false) { 1152 if (DBG) log("requestRouteToHostAddress on unsupported network: " + networkType); 1153 } else { 1154 if (DBG) log("requestRouteToHostAddress on down network: " + networkType); 1155 } 1156 return false; 1157 } 1158 1159 DetailedState netState; 1160 synchronized (nai) { 1161 netState = nai.networkInfo.getDetailedState(); 1162 } 1163 1164 if (netState != DetailedState.CONNECTED && netState != DetailedState.CAPTIVE_PORTAL_CHECK) { 1165 if (VDBG) { 1166 log("requestRouteToHostAddress on down network " 1167 + "(" + networkType + ") - dropped" 1168 + " netState=" + netState); 1169 } 1170 return false; 1171 } 1172 1173 final int uid = Binder.getCallingUid(); 1174 final long token = Binder.clearCallingIdentity(); 1175 try { 1176 LinkProperties lp; 1177 int netId; 1178 synchronized (nai) { 1179 lp = nai.linkProperties; 1180 netId = nai.network.netId; 1181 } 1182 boolean ok = addLegacyRouteToHost(lp, addr, netId, uid); 1183 if (DBG) log("requestRouteToHostAddress ok=" + ok); 1184 return ok; 1185 } finally { 1186 Binder.restoreCallingIdentity(token); 1187 } 1188 } 1189 1190 private boolean addLegacyRouteToHost(LinkProperties lp, InetAddress addr, int netId, int uid) { 1191 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), addr); 1192 if (bestRoute == null) { 1193 bestRoute = RouteInfo.makeHostRoute(addr, lp.getInterfaceName()); 1194 } else { 1195 String iface = bestRoute.getInterface(); 1196 if (bestRoute.getGateway().equals(addr)) { 1197 // if there is no better route, add the implied hostroute for our gateway 1198 bestRoute = RouteInfo.makeHostRoute(addr, iface); 1199 } else { 1200 // if we will connect to this through another route, add a direct route 1201 // to it's gateway 1202 bestRoute = RouteInfo.makeHostRoute(addr, bestRoute.getGateway(), iface); 1203 } 1204 } 1205 if (VDBG) log("Adding " + bestRoute + " for interface " + bestRoute.getInterface()); 1206 try { 1207 mNetd.addLegacyRouteForNetId(netId, bestRoute, uid); 1208 } catch (Exception e) { 1209 // never crash - catch them all 1210 if (DBG) loge("Exception trying to add a route: " + e); 1211 return false; 1212 } 1213 return true; 1214 } 1215 1216 public void setDataDependency(int networkType, boolean met) { 1217 enforceConnectivityInternalPermission(); 1218 1219 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_DEPENDENCY_MET, 1220 (met ? ENABLED : DISABLED), networkType)); 1221 } 1222 1223 private void handleSetDependencyMet(int networkType, boolean met) { 1224 if (mNetTrackers[networkType] != null) { 1225 if (DBG) { 1226 log("handleSetDependencyMet(" + networkType + ", " + met + ")"); 1227 } 1228 mNetTrackers[networkType].setDependencyMet(met); 1229 } 1230 } 1231 1232 private INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() { 1233 @Override 1234 public void onUidRulesChanged(int uid, int uidRules) { 1235 // caller is NPMS, since we only register with them 1236 if (LOGD_RULES) { 1237 log("onUidRulesChanged(uid=" + uid + ", uidRules=" + uidRules + ")"); 1238 } 1239 1240 synchronized (mRulesLock) { 1241 // skip update when we've already applied rules 1242 final int oldRules = mUidRules.get(uid, RULE_ALLOW_ALL); 1243 if (oldRules == uidRules) return; 1244 1245 mUidRules.put(uid, uidRules); 1246 } 1247 1248 // TODO: notify UID when it has requested targeted updates 1249 } 1250 1251 @Override 1252 public void onMeteredIfacesChanged(String[] meteredIfaces) { 1253 // caller is NPMS, since we only register with them 1254 if (LOGD_RULES) { 1255 log("onMeteredIfacesChanged(ifaces=" + Arrays.toString(meteredIfaces) + ")"); 1256 } 1257 1258 synchronized (mRulesLock) { 1259 mMeteredIfaces.clear(); 1260 for (String iface : meteredIfaces) { 1261 mMeteredIfaces.add(iface); 1262 } 1263 } 1264 } 1265 1266 @Override 1267 public void onRestrictBackgroundChanged(boolean restrictBackground) { 1268 // caller is NPMS, since we only register with them 1269 if (LOGD_RULES) { 1270 log("onRestrictBackgroundChanged(restrictBackground=" + restrictBackground + ")"); 1271 } 1272 1273 // kick off connectivity change broadcast for active network, since 1274 // global background policy change is radical. 1275 final int networkType = mActiveDefaultNetwork; 1276 if (isNetworkTypeValid(networkType)) { 1277 final NetworkStateTracker tracker = mNetTrackers[networkType]; 1278 if (tracker != null) { 1279 final NetworkInfo info = tracker.getNetworkInfo(); 1280 if (info != null && info.isConnected()) { 1281 sendConnectedBroadcast(info); 1282 } 1283 } 1284 } 1285 } 1286 }; 1287 1288 @Override 1289 public void setPolicyDataEnable(int networkType, boolean enabled) { 1290 // only someone like NPMS should only be calling us 1291 mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); 1292 1293 mHandler.sendMessage(mHandler.obtainMessage( 1294 EVENT_SET_POLICY_DATA_ENABLE, networkType, (enabled ? ENABLED : DISABLED))); 1295 } 1296 1297 private void handleSetPolicyDataEnable(int networkType, boolean enabled) { 1298 // TODO - handle this passing to factories 1299// if (isNetworkTypeValid(networkType)) { 1300// final NetworkStateTracker tracker = mNetTrackers[networkType]; 1301// if (tracker != null) { 1302// tracker.setPolicyDataEnable(enabled); 1303// } 1304// } 1305 } 1306 1307 private void enforceAccessPermission() { 1308 mContext.enforceCallingOrSelfPermission( 1309 android.Manifest.permission.ACCESS_NETWORK_STATE, 1310 "ConnectivityService"); 1311 } 1312 1313 private void enforceChangePermission() { 1314 mContext.enforceCallingOrSelfPermission( 1315 android.Manifest.permission.CHANGE_NETWORK_STATE, 1316 "ConnectivityService"); 1317 } 1318 1319 // TODO Make this a special check when it goes public 1320 private void enforceTetherChangePermission() { 1321 mContext.enforceCallingOrSelfPermission( 1322 android.Manifest.permission.CHANGE_NETWORK_STATE, 1323 "ConnectivityService"); 1324 } 1325 1326 private void enforceTetherAccessPermission() { 1327 mContext.enforceCallingOrSelfPermission( 1328 android.Manifest.permission.ACCESS_NETWORK_STATE, 1329 "ConnectivityService"); 1330 } 1331 1332 private void enforceConnectivityInternalPermission() { 1333 mContext.enforceCallingOrSelfPermission( 1334 android.Manifest.permission.CONNECTIVITY_INTERNAL, 1335 "ConnectivityService"); 1336 } 1337 1338 public void sendConnectedBroadcast(NetworkInfo info) { 1339 enforceConnectivityInternalPermission(); 1340 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1341 sendGeneralBroadcast(info, CONNECTIVITY_ACTION); 1342 } 1343 1344 private void sendConnectedBroadcastDelayed(NetworkInfo info, int delayMs) { 1345 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1346 sendGeneralBroadcastDelayed(info, CONNECTIVITY_ACTION, delayMs); 1347 } 1348 1349 private void sendInetConditionBroadcast(NetworkInfo info) { 1350 sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION); 1351 } 1352 1353 private Intent makeGeneralIntent(NetworkInfo info, String bcastType) { 1354 if (mLockdownTracker != null) { 1355 info = mLockdownTracker.augmentNetworkInfo(info); 1356 } 1357 1358 Intent intent = new Intent(bcastType); 1359 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 1360 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 1361 if (info.isFailover()) { 1362 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 1363 info.setFailover(false); 1364 } 1365 if (info.getReason() != null) { 1366 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 1367 } 1368 if (info.getExtraInfo() != null) { 1369 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 1370 info.getExtraInfo()); 1371 } 1372 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 1373 return intent; 1374 } 1375 1376 private void sendGeneralBroadcast(NetworkInfo info, String bcastType) { 1377 sendStickyBroadcast(makeGeneralIntent(info, bcastType)); 1378 } 1379 1380 private void sendGeneralBroadcastDelayed(NetworkInfo info, String bcastType, int delayMs) { 1381 sendStickyBroadcastDelayed(makeGeneralIntent(info, bcastType), delayMs); 1382 } 1383 1384 private void sendDataActivityBroadcast(int deviceType, boolean active, long tsNanos) { 1385 Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); 1386 intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); 1387 intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); 1388 intent.putExtra(ConnectivityManager.EXTRA_REALTIME_NS, tsNanos); 1389 final long ident = Binder.clearCallingIdentity(); 1390 try { 1391 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, 1392 RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); 1393 } finally { 1394 Binder.restoreCallingIdentity(ident); 1395 } 1396 } 1397 1398 private void sendStickyBroadcast(Intent intent) { 1399 synchronized(this) { 1400 if (!mSystemReady) { 1401 mInitialBroadcast = new Intent(intent); 1402 } 1403 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1404 if (VDBG) { 1405 log("sendStickyBroadcast: action=" + intent.getAction()); 1406 } 1407 1408 final long ident = Binder.clearCallingIdentity(); 1409 try { 1410 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1411 } finally { 1412 Binder.restoreCallingIdentity(ident); 1413 } 1414 } 1415 } 1416 1417 private void sendStickyBroadcastDelayed(Intent intent, int delayMs) { 1418 if (delayMs <= 0) { 1419 sendStickyBroadcast(intent); 1420 } else { 1421 if (VDBG) { 1422 log("sendStickyBroadcastDelayed: delayMs=" + delayMs + ", action=" 1423 + intent.getAction()); 1424 } 1425 mHandler.sendMessageDelayed(mHandler.obtainMessage( 1426 EVENT_SEND_STICKY_BROADCAST_INTENT, intent), delayMs); 1427 } 1428 } 1429 1430 void systemReady() { 1431 // start network sampling .. 1432 Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 1433 intent.setPackage(mContext.getPackageName()); 1434 1435 mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, 1436 SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); 1437 setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); 1438 1439 loadGlobalProxy(); 1440 1441 synchronized(this) { 1442 mSystemReady = true; 1443 if (mInitialBroadcast != null) { 1444 mContext.sendStickyBroadcastAsUser(mInitialBroadcast, UserHandle.ALL); 1445 mInitialBroadcast = null; 1446 } 1447 } 1448 // load the global proxy at startup 1449 mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY)); 1450 1451 // Try bringing up tracker, but if KeyStore isn't ready yet, wait 1452 // for user to unlock device. 1453 if (!updateLockdownVpn()) { 1454 final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_PRESENT); 1455 mContext.registerReceiver(mUserPresentReceiver, filter); 1456 } 1457 1458 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SYSTEM_READY)); 1459 } 1460 1461 private BroadcastReceiver mUserPresentReceiver = new BroadcastReceiver() { 1462 @Override 1463 public void onReceive(Context context, Intent intent) { 1464 // Try creating lockdown tracker, since user present usually means 1465 // unlocked keystore. 1466 if (updateLockdownVpn()) { 1467 mContext.unregisterReceiver(this); 1468 } 1469 } 1470 }; 1471 1472 /** @hide */ 1473 @Override 1474 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 1475 enforceConnectivityInternalPermission(); 1476 if (DBG) log("captivePortalCheckCompleted: ni=" + info + " captive=" + isCaptivePortal); 1477// mNetTrackers[info.getType()].captivePortalCheckCompleted(isCaptivePortal); 1478 } 1479 1480 /** 1481 * Setup data activity tracking for the given network. 1482 * 1483 * Every {@code setupDataActivityTracking} should be paired with a 1484 * {@link #removeDataActivityTracking} for cleanup. 1485 */ 1486 private void setupDataActivityTracking(NetworkAgentInfo networkAgent) { 1487 final String iface = networkAgent.linkProperties.getInterfaceName(); 1488 1489 final int timeout; 1490 int type = ConnectivityManager.TYPE_NONE; 1491 1492 if (networkAgent.networkCapabilities.hasTransport( 1493 NetworkCapabilities.TRANSPORT_CELLULAR)) { 1494 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1495 Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, 1496 5); 1497 type = ConnectivityManager.TYPE_MOBILE; 1498 } else if (networkAgent.networkCapabilities.hasTransport( 1499 NetworkCapabilities.TRANSPORT_WIFI)) { 1500 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1501 Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, 1502 0); 1503 type = ConnectivityManager.TYPE_WIFI; 1504 } else { 1505 // do not track any other networks 1506 timeout = 0; 1507 } 1508 1509 if (timeout > 0 && iface != null && type != ConnectivityManager.TYPE_NONE) { 1510 try { 1511 mNetd.addIdleTimer(iface, timeout, type); 1512 } catch (Exception e) { 1513 // You shall not crash! 1514 loge("Exception in setupDataActivityTracking " + e); 1515 } 1516 } 1517 } 1518 1519 /** 1520 * Remove data activity tracking when network disconnects. 1521 */ 1522 private void removeDataActivityTracking(NetworkAgentInfo networkAgent) { 1523 final String iface = networkAgent.linkProperties.getInterfaceName(); 1524 final NetworkCapabilities caps = networkAgent.networkCapabilities; 1525 1526 if (iface != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) || 1527 caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))) { 1528 try { 1529 // the call fails silently if no idletimer setup for this interface 1530 mNetd.removeIdleTimer(iface); 1531 } catch (Exception e) { 1532 loge("Exception in removeDataActivityTracking " + e); 1533 } 1534 } 1535 } 1536 1537 /** 1538 * Reads the network specific MTU size from reources. 1539 * and set it on it's iface. 1540 */ 1541 private void updateMtu(LinkProperties newLp, LinkProperties oldLp) { 1542 final String iface = newLp.getInterfaceName(); 1543 final int mtu = newLp.getMtu(); 1544 if (oldLp != null && newLp.isIdenticalMtu(oldLp)) { 1545 if (VDBG) log("identical MTU - not setting"); 1546 return; 1547 } 1548 1549 if (LinkProperties.isValidMtu(mtu, newLp.hasGlobalIPv6Address()) == false) { 1550 loge("Unexpected mtu value: " + mtu + ", " + iface); 1551 return; 1552 } 1553 1554 // Cannot set MTU without interface name 1555 if (TextUtils.isEmpty(iface)) { 1556 loge("Setting MTU size with null iface."); 1557 return; 1558 } 1559 1560 try { 1561 if (VDBG) log("Setting MTU size: " + iface + ", " + mtu); 1562 mNetd.setMtu(iface, mtu); 1563 } catch (Exception e) { 1564 Slog.e(TAG, "exception in setMtu()" + e); 1565 } 1566 } 1567 1568 private static final String DEFAULT_TCP_BUFFER_SIZES = "4096,87380,110208,4096,16384,110208"; 1569 1570 private void updateTcpBufferSizes(NetworkAgentInfo nai) { 1571 if (isDefaultNetwork(nai) == false) { 1572 return; 1573 } 1574 1575 String tcpBufferSizes = nai.linkProperties.getTcpBufferSizes(); 1576 String[] values = null; 1577 if (tcpBufferSizes != null) { 1578 values = tcpBufferSizes.split(","); 1579 } 1580 1581 if (values == null || values.length != 6) { 1582 if (VDBG) log("Invalid tcpBufferSizes string: " + tcpBufferSizes +", using defaults"); 1583 tcpBufferSizes = DEFAULT_TCP_BUFFER_SIZES; 1584 values = tcpBufferSizes.split(","); 1585 } 1586 1587 if (tcpBufferSizes.equals(mCurrentTcpBufferSizes)) return; 1588 1589 try { 1590 if (VDBG) Slog.d(TAG, "Setting tx/rx TCP buffers to " + tcpBufferSizes); 1591 1592 final String prefix = "/sys/kernel/ipv4/tcp_"; 1593 FileUtils.stringToFile(prefix + "rmem_min", values[0]); 1594 FileUtils.stringToFile(prefix + "rmem_def", values[1]); 1595 FileUtils.stringToFile(prefix + "rmem_max", values[2]); 1596 FileUtils.stringToFile(prefix + "wmem_min", values[3]); 1597 FileUtils.stringToFile(prefix + "wmem_def", values[4]); 1598 FileUtils.stringToFile(prefix + "wmem_max", values[5]); 1599 mCurrentTcpBufferSizes = tcpBufferSizes; 1600 } catch (IOException e) { 1601 loge("Can't set TCP buffer sizes:" + e); 1602 } 1603 1604 final String defaultRwndKey = "net.tcp.default_init_rwnd"; 1605 int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0); 1606 Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(), 1607 Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue); 1608 final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd"; 1609 if (rwndValue != 0) { 1610 SystemProperties.set(sysctlKey, rwndValue.toString()); 1611 } 1612 } 1613 1614 private void flushVmDnsCache() { 1615 /* 1616 * Tell the VMs to toss their DNS caches 1617 */ 1618 Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE); 1619 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); 1620 /* 1621 * Connectivity events can happen before boot has completed ... 1622 */ 1623 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1624 final long ident = Binder.clearCallingIdentity(); 1625 try { 1626 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 1627 } finally { 1628 Binder.restoreCallingIdentity(ident); 1629 } 1630 } 1631 1632 @Override 1633 public int getRestoreDefaultNetworkDelay(int networkType) { 1634 String restoreDefaultNetworkDelayStr = SystemProperties.get( 1635 NETWORK_RESTORE_DELAY_PROP_NAME); 1636 if(restoreDefaultNetworkDelayStr != null && 1637 restoreDefaultNetworkDelayStr.length() != 0) { 1638 try { 1639 return Integer.valueOf(restoreDefaultNetworkDelayStr); 1640 } catch (NumberFormatException e) { 1641 } 1642 } 1643 // if the system property isn't set, use the value for the apn type 1644 int ret = RESTORE_DEFAULT_NETWORK_DELAY; 1645 1646 if ((networkType <= ConnectivityManager.MAX_NETWORK_TYPE) && 1647 (mNetConfigs[networkType] != null)) { 1648 ret = mNetConfigs[networkType].restoreTime; 1649 } 1650 return ret; 1651 } 1652 1653 @Override 1654 protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { 1655 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1656 if (mContext.checkCallingOrSelfPermission( 1657 android.Manifest.permission.DUMP) 1658 != PackageManager.PERMISSION_GRANTED) { 1659 pw.println("Permission Denial: can't dump ConnectivityService " + 1660 "from from pid=" + Binder.getCallingPid() + ", uid=" + 1661 Binder.getCallingUid()); 1662 return; 1663 } 1664 1665 pw.println("NetworkFactories for:"); 1666 pw.increaseIndent(); 1667 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 1668 pw.println(nfi.name); 1669 } 1670 pw.decreaseIndent(); 1671 pw.println(); 1672 1673 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 1674 pw.print("Active default network: "); 1675 if (defaultNai == null) { 1676 pw.println("none"); 1677 } else { 1678 pw.println(defaultNai.network.netId); 1679 } 1680 pw.println(); 1681 1682 pw.println("Current Networks:"); 1683 pw.increaseIndent(); 1684 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 1685 pw.println(nai.toString()); 1686 pw.increaseIndent(); 1687 pw.println("Requests:"); 1688 pw.increaseIndent(); 1689 for (int i = 0; i < nai.networkRequests.size(); i++) { 1690 pw.println(nai.networkRequests.valueAt(i).toString()); 1691 } 1692 pw.decreaseIndent(); 1693 pw.println("Lingered:"); 1694 pw.increaseIndent(); 1695 for (NetworkRequest nr : nai.networkLingered) pw.println(nr.toString()); 1696 pw.decreaseIndent(); 1697 pw.decreaseIndent(); 1698 } 1699 pw.decreaseIndent(); 1700 pw.println(); 1701 1702 pw.println("Network Requests:"); 1703 pw.increaseIndent(); 1704 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 1705 pw.println(nri.toString()); 1706 } 1707 pw.println(); 1708 pw.decreaseIndent(); 1709 1710 pw.print("mActiveDefaultNetwork: " + mActiveDefaultNetwork); 1711 if (mActiveDefaultNetwork != TYPE_NONE) { 1712 NetworkInfo activeNetworkInfo = getActiveNetworkInfo(); 1713 if (activeNetworkInfo != null) { 1714 pw.print(" " + activeNetworkInfo.getState() + 1715 "/" + activeNetworkInfo.getDetailedState()); 1716 } 1717 } 1718 pw.println(); 1719 1720 pw.println("mLegacyTypeTracker:"); 1721 pw.increaseIndent(); 1722 mLegacyTypeTracker.dump(pw); 1723 pw.decreaseIndent(); 1724 pw.println(); 1725 1726 synchronized (this) { 1727 pw.println("NetworkTranstionWakeLock is currently " + 1728 (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held."); 1729 pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy); 1730 } 1731 pw.println(); 1732 1733 mTethering.dump(fd, pw, args); 1734 1735 if (mInetLog != null) { 1736 pw.println(); 1737 pw.println("Inet condition reports:"); 1738 pw.increaseIndent(); 1739 for(int i = 0; i < mInetLog.size(); i++) { 1740 pw.println(mInetLog.get(i)); 1741 } 1742 pw.decreaseIndent(); 1743 } 1744 } 1745 1746 private boolean isLiveNetworkAgent(NetworkAgentInfo nai, String msg) { 1747 final NetworkAgentInfo officialNai; 1748 synchronized (mNetworkForNetId) { 1749 officialNai = mNetworkForNetId.get(nai.network.netId); 1750 } 1751 if (officialNai != null && officialNai.equals(nai)) return true; 1752 if (officialNai != null || VDBG) { 1753 loge(msg + " - validateNetworkAgent found mismatched netId: " + officialNai + 1754 " - " + nai); 1755 } 1756 return false; 1757 } 1758 1759 // must be stateless - things change under us. 1760 private class NetworkStateTrackerHandler extends Handler { 1761 public NetworkStateTrackerHandler(Looper looper) { 1762 super(looper); 1763 } 1764 1765 @Override 1766 public void handleMessage(Message msg) { 1767 NetworkInfo info; 1768 switch (msg.what) { 1769 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 1770 handleAsyncChannelHalfConnect(msg); 1771 break; 1772 } 1773 case AsyncChannel.CMD_CHANNEL_DISCONNECT: { 1774 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1775 if (nai != null) nai.asyncChannel.disconnect(); 1776 break; 1777 } 1778 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 1779 handleAsyncChannelDisconnected(msg); 1780 break; 1781 } 1782 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { 1783 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1784 if (nai == null) { 1785 loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); 1786 } else { 1787 updateCapabilities(nai, (NetworkCapabilities)msg.obj); 1788 } 1789 break; 1790 } 1791 case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { 1792 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1793 if (nai == null) { 1794 loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); 1795 } else { 1796 if (VDBG) { 1797 log("Update of Linkproperties for " + nai.name() + 1798 "; created=" + nai.created); 1799 } 1800 LinkProperties oldLp = nai.linkProperties; 1801 synchronized (nai) { 1802 nai.linkProperties = (LinkProperties)msg.obj; 1803 } 1804 if (nai.created) updateLinkProperties(nai, oldLp); 1805 } 1806 break; 1807 } 1808 case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { 1809 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1810 if (nai == null) { 1811 loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); 1812 break; 1813 } 1814 info = (NetworkInfo) msg.obj; 1815 updateNetworkInfo(nai, info); 1816 break; 1817 } 1818 case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { 1819 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1820 if (nai == null) { 1821 loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); 1822 break; 1823 } 1824 Integer score = (Integer) msg.obj; 1825 if (score != null) updateNetworkScore(nai, score.intValue()); 1826 break; 1827 } 1828 case NetworkAgent.EVENT_UID_RANGES_ADDED: { 1829 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1830 if (nai == null) { 1831 loge("EVENT_UID_RANGES_ADDED from unknown NetworkAgent"); 1832 break; 1833 } 1834 try { 1835 mNetd.addVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1836 } catch (Exception e) { 1837 // Never crash! 1838 loge("Exception in addVpnUidRanges: " + e); 1839 } 1840 break; 1841 } 1842 case NetworkAgent.EVENT_UID_RANGES_REMOVED: { 1843 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1844 if (nai == null) { 1845 loge("EVENT_UID_RANGES_REMOVED from unknown NetworkAgent"); 1846 break; 1847 } 1848 try { 1849 mNetd.removeVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1850 } catch (Exception e) { 1851 // Never crash! 1852 loge("Exception in removeVpnUidRanges: " + e); 1853 } 1854 break; 1855 } 1856 case NetworkAgent.EVENT_BLOCK_ADDRESS_FAMILY: { 1857 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1858 if (nai == null) { 1859 loge("EVENT_BLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1860 break; 1861 } 1862 try { 1863 mNetd.blockAddressFamily((Integer) msg.obj, nai.network.netId, 1864 nai.linkProperties.getInterfaceName()); 1865 } catch (Exception e) { 1866 // Never crash! 1867 loge("Exception in blockAddressFamily: " + e); 1868 } 1869 break; 1870 } 1871 case NetworkAgent.EVENT_UNBLOCK_ADDRESS_FAMILY: { 1872 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1873 if (nai == null) { 1874 loge("EVENT_UNBLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1875 break; 1876 } 1877 try { 1878 mNetd.unblockAddressFamily((Integer) msg.obj, nai.network.netId, 1879 nai.linkProperties.getInterfaceName()); 1880 } catch (Exception e) { 1881 // Never crash! 1882 loge("Exception in blockAddressFamily: " + e); 1883 } 1884 break; 1885 } 1886 case NetworkMonitor.EVENT_NETWORK_VALIDATED: { 1887 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1888 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_VALIDATED")) { 1889 handleConnectionValidated(nai); 1890 } 1891 break; 1892 } 1893 case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { 1894 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1895 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_LINGER_COMPLETE")) { 1896 handleLingerComplete(nai); 1897 } 1898 break; 1899 } 1900 case NetworkMonitor.EVENT_PROVISIONING_NOTIFICATION: { 1901 NetworkAgentInfo nai = null; 1902 synchronized (mNetworkForNetId) { 1903 nai = mNetworkForNetId.get(msg.arg2); 1904 } 1905 if (nai == null) { 1906 loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); 1907 break; 1908 } 1909 if (msg.arg1 == 0) { 1910 setProvNotificationVisibleIntent(false, msg.arg2, 0, null, null); 1911 } else { 1912 setProvNotificationVisibleIntent(true, msg.arg2, nai.networkInfo.getType(), 1913 nai.networkInfo.getExtraInfo(), (PendingIntent)msg.obj); 1914 } 1915 break; 1916 } 1917 case NetworkStateTracker.EVENT_STATE_CHANGED: { 1918 info = (NetworkInfo) msg.obj; 1919 NetworkInfo.State state = info.getState(); 1920 1921 if (VDBG || (state == NetworkInfo.State.CONNECTED) || 1922 (state == NetworkInfo.State.DISCONNECTED) || 1923 (state == NetworkInfo.State.SUSPENDED)) { 1924 log("ConnectivityChange for " + 1925 info.getTypeName() + ": " + 1926 state + "/" + info.getDetailedState()); 1927 } 1928 1929 // Since mobile has the notion of a network/apn that can be used for 1930 // provisioning we need to check every time we're connected as 1931 // CaptiveProtalTracker won't detected it because DCT doesn't report it 1932 // as connected as ACTION_ANY_DATA_CONNECTION_STATE_CHANGED instead its 1933 // reported as ACTION_DATA_CONNECTION_CONNECTED_TO_PROVISIONING_APN. Which 1934 // is received by MDST and sent here as EVENT_STATE_CHANGED. 1935 if (ConnectivityManager.isNetworkTypeMobile(info.getType()) 1936 && (0 != Settings.Global.getInt(mContext.getContentResolver(), 1937 Settings.Global.DEVICE_PROVISIONED, 0)) 1938 && (((state == NetworkInfo.State.CONNECTED) 1939 && (info.getType() == ConnectivityManager.TYPE_MOBILE)) 1940 || info.isConnectedToProvisioningNetwork())) { 1941 log("ConnectivityChange checkMobileProvisioning for" 1942 + " TYPE_MOBILE or ProvisioningNetwork"); 1943 checkMobileProvisioning(CheckMp.MAX_TIMEOUT_MS); 1944 } 1945 1946 EventLogTags.writeConnectivityStateChanged( 1947 info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); 1948 1949 if (info.isConnectedToProvisioningNetwork()) { 1950 /** 1951 * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING 1952 * for now its an in between network, its a network that 1953 * is actually a default network but we don't want it to be 1954 * announced as such to keep background applications from 1955 * trying to use it. It turns out that some still try so we 1956 * take the additional step of clearing any default routes 1957 * to the link that may have incorrectly setup by the lower 1958 * levels. 1959 */ 1960 LinkProperties lp = getLinkPropertiesForTypeInternal(info.getType()); 1961 if (DBG) { 1962 log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); 1963 } 1964 1965 // Clear any default routes setup by the radio so 1966 // any activity by applications trying to use this 1967 // connection will fail until the provisioning network 1968 // is enabled. 1969 /* 1970 for (RouteInfo r : lp.getRoutes()) { 1971 removeRoute(lp, r, TO_DEFAULT_TABLE, 1972 mNetTrackers[info.getType()].getNetwork().netId); 1973 } 1974 */ 1975 } else if (state == NetworkInfo.State.DISCONNECTED) { 1976 } else if (state == NetworkInfo.State.SUSPENDED) { 1977 } else if (state == NetworkInfo.State.CONNECTED) { 1978 // handleConnect(info); 1979 } 1980 if (mLockdownTracker != null) { 1981 mLockdownTracker.onNetworkInfoChanged(info); 1982 } 1983 break; 1984 } 1985 case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { 1986 info = (NetworkInfo) msg.obj; 1987 // TODO: Temporary allowing network configuration 1988 // change not resetting sockets. 1989 // @see bug/4455071 1990 /* 1991 handleConnectivityChange(info.getType(), mCurrentLinkProperties[info.getType()], 1992 false); 1993 */ 1994 break; 1995 } 1996 } 1997 } 1998 } 1999 2000 private void handleAsyncChannelHalfConnect(Message msg) { 2001 AsyncChannel ac = (AsyncChannel) msg.obj; 2002 if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { 2003 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2004 if (VDBG) log("NetworkFactory connected"); 2005 // A network factory has connected. Send it all current NetworkRequests. 2006 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 2007 if (nri.isRequest == false) continue; 2008 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2009 ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, 2010 (nai != null ? nai.currentScore : 0), 0, nri.request); 2011 } 2012 } else { 2013 loge("Error connecting NetworkFactory"); 2014 mNetworkFactoryInfos.remove(msg.obj); 2015 } 2016 } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { 2017 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2018 if (VDBG) log("NetworkAgent connected"); 2019 // A network agent has requested a connection. Establish the connection. 2020 mNetworkAgentInfos.get(msg.replyTo).asyncChannel. 2021 sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 2022 } else { 2023 loge("Error connecting NetworkAgent"); 2024 NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); 2025 if (nai != null) { 2026 synchronized (mNetworkForNetId) { 2027 mNetworkForNetId.remove(nai.network.netId); 2028 } 2029 // Just in case. 2030 mLegacyTypeTracker.remove(nai); 2031 } 2032 } 2033 } 2034 } 2035 private void handleAsyncChannelDisconnected(Message msg) { 2036 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 2037 if (nai != null) { 2038 if (DBG) { 2039 log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); 2040 } 2041 // A network agent has disconnected. 2042 if (nai.created) { 2043 // Tell netd to clean up the configuration for this network 2044 // (routing rules, DNS, etc). 2045 try { 2046 mNetd.removeNetwork(nai.network.netId); 2047 } catch (Exception e) { 2048 loge("Exception removing network: " + e); 2049 } 2050 } 2051 // TODO - if we move the logic to the network agent (have them disconnect 2052 // because they lost all their requests or because their score isn't good) 2053 // then they would disconnect organically, report their new state and then 2054 // disconnect the channel. 2055 if (nai.networkInfo.isConnected()) { 2056 nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, 2057 null, null); 2058 } 2059 if (isDefaultNetwork(nai)) { 2060 mDefaultInetConditionPublished = 0; 2061 } 2062 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); 2063 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); 2064 mNetworkAgentInfos.remove(msg.replyTo); 2065 updateClat(null, nai.linkProperties, nai); 2066 mLegacyTypeTracker.remove(nai); 2067 synchronized (mNetworkForNetId) { 2068 mNetworkForNetId.remove(nai.network.netId); 2069 } 2070 // Since we've lost the network, go through all the requests that 2071 // it was satisfying and see if any other factory can satisfy them. 2072 final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); 2073 for (int i = 0; i < nai.networkRequests.size(); i++) { 2074 NetworkRequest request = nai.networkRequests.valueAt(i); 2075 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); 2076 if (VDBG) { 2077 log(" checking request " + request + ", currentNetwork = " + 2078 (currentNetwork != null ? currentNetwork.name() : "null")); 2079 } 2080 if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { 2081 mNetworkForRequestId.remove(request.requestId); 2082 sendUpdatedScoreToFactories(request, 0); 2083 NetworkAgentInfo alternative = null; 2084 for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { 2085 NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); 2086 if (existing.networkInfo.isConnected() && 2087 request.networkCapabilities.satisfiedByNetworkCapabilities( 2088 existing.networkCapabilities) && 2089 (alternative == null || 2090 alternative.currentScore < existing.currentScore)) { 2091 alternative = existing; 2092 } 2093 } 2094 if (alternative != null && !toActivate.contains(alternative)) { 2095 toActivate.add(alternative); 2096 } 2097 } 2098 } 2099 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 2100 removeDataActivityTracking(nai); 2101 mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; 2102 requestNetworkTransitionWakelock(nai.name()); 2103 } 2104 for (NetworkAgentInfo networkToActivate : toActivate) { 2105 networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2106 } 2107 } 2108 } 2109 2110 private void handleRegisterNetworkRequest(Message msg) { 2111 final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); 2112 final NetworkCapabilities newCap = nri.request.networkCapabilities; 2113 int score = 0; 2114 2115 // Check for the best currently alive network that satisfies this request 2116 NetworkAgentInfo bestNetwork = null; 2117 for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { 2118 if (VDBG) log("handleRegisterNetworkRequest checking " + network.name()); 2119 if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { 2120 if (VDBG) log("apparently satisfied. currentScore=" + network.currentScore); 2121 if ((bestNetwork == null) || bestNetwork.currentScore < network.currentScore) { 2122 if (!nri.isRequest) { 2123 // Not setting bestNetwork here as a listening NetworkRequest may be 2124 // satisfied by multiple Networks. Instead the request is added to 2125 // each satisfying Network and notified about each. 2126 network.addRequest(nri.request); 2127 notifyNetworkCallback(network, nri); 2128 } else { 2129 bestNetwork = network; 2130 } 2131 } 2132 } 2133 } 2134 if (bestNetwork != null) { 2135 if (VDBG) log("using " + bestNetwork.name()); 2136 if (bestNetwork.networkInfo.isConnected()) { 2137 // Cancel any lingering so the linger timeout doesn't teardown this network 2138 // even though we have a request for it. 2139 bestNetwork.networkLingered.clear(); 2140 bestNetwork.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2141 } 2142 bestNetwork.addRequest(nri.request); 2143 mNetworkForRequestId.put(nri.request.requestId, bestNetwork); 2144 notifyNetworkCallback(bestNetwork, nri); 2145 score = bestNetwork.currentScore; 2146 if (nri.request.legacyType != TYPE_NONE) { 2147 mLegacyTypeTracker.add(nri.request.legacyType, bestNetwork); 2148 } 2149 } 2150 mNetworkRequests.put(nri.request, nri); 2151 if (nri.isRequest) { 2152 if (DBG) log("sending new NetworkRequest to factories"); 2153 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2154 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 2155 0, nri.request); 2156 } 2157 } 2158 } 2159 2160 private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) { 2161 NetworkRequestInfo nri = mNetworkRequests.get(request); 2162 if (nri != null) { 2163 if (nri.mUid != callingUid) { 2164 if (DBG) log("Attempt to release unowned NetworkRequest " + request); 2165 return; 2166 } 2167 if (DBG) log("releasing NetworkRequest " + request); 2168 nri.unlinkDeathRecipient(); 2169 mNetworkRequests.remove(request); 2170 // tell the network currently servicing this that it's no longer interested 2171 NetworkAgentInfo affectedNetwork = mNetworkForRequestId.get(nri.request.requestId); 2172 if (affectedNetwork != null) { 2173 mNetworkForRequestId.remove(nri.request.requestId); 2174 affectedNetwork.networkRequests.remove(nri.request.requestId); 2175 if (VDBG) { 2176 log(" Removing from current network " + affectedNetwork.name() + ", leaving " + 2177 affectedNetwork.networkRequests.size() + " requests."); 2178 } 2179 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 2180 mLegacyTypeTracker.remove(nri.request.legacyType, affectedNetwork); 2181 } 2182 } 2183 2184 if (nri.isRequest) { 2185 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2186 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 2187 nri.request); 2188 } 2189 2190 if (affectedNetwork != null) { 2191 // check if this network still has live requests - otherwise, tear down 2192 // TODO - probably push this to the NF/NA 2193 boolean keep = affectedNetwork.isVPN(); 2194 for (int i = 0; i < affectedNetwork.networkRequests.size() && !keep; i++) { 2195 NetworkRequest r = affectedNetwork.networkRequests.valueAt(i); 2196 if (mNetworkRequests.get(r).isRequest) { 2197 keep = true; 2198 } 2199 } 2200 if (keep == false) { 2201 if (DBG) log("no live requests for " + affectedNetwork.name() + 2202 "; disconnecting"); 2203 affectedNetwork.asyncChannel.disconnect(); 2204 } 2205 } 2206 } 2207 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 2208 } 2209 } 2210 2211 private class InternalHandler extends Handler { 2212 public InternalHandler(Looper looper) { 2213 super(looper); 2214 } 2215 2216 @Override 2217 public void handleMessage(Message msg) { 2218 NetworkInfo info; 2219 switch (msg.what) { 2220 case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: 2221 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 2222 String causedBy = null; 2223 synchronized (ConnectivityService.this) { 2224 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 2225 mNetTransitionWakeLock.isHeld()) { 2226 mNetTransitionWakeLock.release(); 2227 causedBy = mNetTransitionWakeLockCausedBy; 2228 } else { 2229 break; 2230 } 2231 } 2232 if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { 2233 log("Failed to find a new network - expiring NetTransition Wakelock"); 2234 } else { 2235 log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + 2236 " cleared because we found a replacement network"); 2237 } 2238 break; 2239 } 2240 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 2241 handleDeprecatedGlobalHttpProxy(); 2242 break; 2243 } 2244 case EVENT_SET_DEPENDENCY_MET: { 2245 boolean met = (msg.arg1 == ENABLED); 2246 handleSetDependencyMet(msg.arg2, met); 2247 break; 2248 } 2249 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 2250 Intent intent = (Intent)msg.obj; 2251 sendStickyBroadcast(intent); 2252 break; 2253 } 2254 case EVENT_SET_POLICY_DATA_ENABLE: { 2255 final int networkType = msg.arg1; 2256 final boolean enabled = msg.arg2 == ENABLED; 2257 handleSetPolicyDataEnable(networkType, enabled); 2258 break; 2259 } 2260 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 2261 int tag = mEnableFailFastMobileDataTag.get(); 2262 if (msg.arg1 == tag) { 2263 MobileDataStateTracker mobileDst = 2264 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2265 if (mobileDst != null) { 2266 mobileDst.setEnableFailFastMobileData(msg.arg2); 2267 } 2268 } else { 2269 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 2270 + " != tag:" + tag); 2271 } 2272 break; 2273 } 2274 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 2275 handleNetworkSamplingTimeout(); 2276 break; 2277 } 2278 case EVENT_PROXY_HAS_CHANGED: { 2279 handleApplyDefaultProxy((ProxyInfo)msg.obj); 2280 break; 2281 } 2282 case EVENT_REGISTER_NETWORK_FACTORY: { 2283 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 2284 break; 2285 } 2286 case EVENT_UNREGISTER_NETWORK_FACTORY: { 2287 handleUnregisterNetworkFactory((Messenger)msg.obj); 2288 break; 2289 } 2290 case EVENT_REGISTER_NETWORK_AGENT: { 2291 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 2292 break; 2293 } 2294 case EVENT_REGISTER_NETWORK_REQUEST: 2295 case EVENT_REGISTER_NETWORK_LISTENER: { 2296 handleRegisterNetworkRequest(msg); 2297 break; 2298 } 2299 case EVENT_RELEASE_NETWORK_REQUEST: { 2300 handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); 2301 break; 2302 } 2303 case EVENT_SYSTEM_READY: { 2304 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2305 nai.networkMonitor.systemReady = true; 2306 } 2307 break; 2308 } 2309 } 2310 } 2311 } 2312 2313 // javadoc from interface 2314 public int tether(String iface) { 2315 enforceTetherChangePermission(); 2316 2317 if (isTetheringSupported()) { 2318 return mTethering.tether(iface); 2319 } else { 2320 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2321 } 2322 } 2323 2324 // javadoc from interface 2325 public int untether(String iface) { 2326 enforceTetherChangePermission(); 2327 2328 if (isTetheringSupported()) { 2329 return mTethering.untether(iface); 2330 } else { 2331 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2332 } 2333 } 2334 2335 // javadoc from interface 2336 public int getLastTetherError(String iface) { 2337 enforceTetherAccessPermission(); 2338 2339 if (isTetheringSupported()) { 2340 return mTethering.getLastTetherError(iface); 2341 } else { 2342 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2343 } 2344 } 2345 2346 // TODO - proper iface API for selection by property, inspection, etc 2347 public String[] getTetherableUsbRegexs() { 2348 enforceTetherAccessPermission(); 2349 if (isTetheringSupported()) { 2350 return mTethering.getTetherableUsbRegexs(); 2351 } else { 2352 return new String[0]; 2353 } 2354 } 2355 2356 public String[] getTetherableWifiRegexs() { 2357 enforceTetherAccessPermission(); 2358 if (isTetheringSupported()) { 2359 return mTethering.getTetherableWifiRegexs(); 2360 } else { 2361 return new String[0]; 2362 } 2363 } 2364 2365 public String[] getTetherableBluetoothRegexs() { 2366 enforceTetherAccessPermission(); 2367 if (isTetheringSupported()) { 2368 return mTethering.getTetherableBluetoothRegexs(); 2369 } else { 2370 return new String[0]; 2371 } 2372 } 2373 2374 public int setUsbTethering(boolean enable) { 2375 enforceTetherChangePermission(); 2376 if (isTetheringSupported()) { 2377 return mTethering.setUsbTethering(enable); 2378 } else { 2379 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2380 } 2381 } 2382 2383 // TODO - move iface listing, queries, etc to new module 2384 // javadoc from interface 2385 public String[] getTetherableIfaces() { 2386 enforceTetherAccessPermission(); 2387 return mTethering.getTetherableIfaces(); 2388 } 2389 2390 public String[] getTetheredIfaces() { 2391 enforceTetherAccessPermission(); 2392 return mTethering.getTetheredIfaces(); 2393 } 2394 2395 public String[] getTetheringErroredIfaces() { 2396 enforceTetherAccessPermission(); 2397 return mTethering.getErroredIfaces(); 2398 } 2399 2400 public String[] getTetheredDhcpRanges() { 2401 enforceConnectivityInternalPermission(); 2402 return mTethering.getTetheredDhcpRanges(); 2403 } 2404 2405 // if ro.tether.denied = true we default to no tethering 2406 // gservices could set the secure setting to 1 though to enable it on a build where it 2407 // had previously been turned off. 2408 public boolean isTetheringSupported() { 2409 enforceTetherAccessPermission(); 2410 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 2411 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 2412 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0) 2413 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); 2414 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 2415 mTethering.getTetherableWifiRegexs().length != 0 || 2416 mTethering.getTetherableBluetoothRegexs().length != 0) && 2417 mTethering.getUpstreamIfaceTypes().length != 0); 2418 } 2419 2420 // Called when we lose the default network and have no replacement yet. 2421 // This will automatically be cleared after X seconds or a new default network 2422 // becomes CONNECTED, whichever happens first. The timer is started by the 2423 // first caller and not restarted by subsequent callers. 2424 private void requestNetworkTransitionWakelock(String forWhom) { 2425 int serialNum = 0; 2426 synchronized (this) { 2427 if (mNetTransitionWakeLock.isHeld()) return; 2428 serialNum = ++mNetTransitionWakeLockSerialNumber; 2429 mNetTransitionWakeLock.acquire(); 2430 mNetTransitionWakeLockCausedBy = forWhom; 2431 } 2432 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2433 EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), 2434 mNetTransitionWakeLockTimeout); 2435 return; 2436 } 2437 2438 // 100 percent is full good, 0 is full bad. 2439 public void reportInetCondition(int networkType, int percentage) { 2440 if (percentage > 50) return; // don't handle good network reports 2441 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 2442 if (nai != null) reportBadNetwork(nai.network); 2443 } 2444 2445 public void reportBadNetwork(Network network) { 2446 //TODO 2447 } 2448 2449 public ProxyInfo getProxy() { 2450 // this information is already available as a world read/writable jvm property 2451 // so this API change wouldn't have a benifit. It also breaks the passing 2452 // of proxy info to all the JVMs. 2453 // enforceAccessPermission(); 2454 synchronized (mProxyLock) { 2455 ProxyInfo ret = mGlobalProxy; 2456 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 2457 return ret; 2458 } 2459 } 2460 2461 public void setGlobalProxy(ProxyInfo proxyProperties) { 2462 enforceConnectivityInternalPermission(); 2463 2464 synchronized (mProxyLock) { 2465 if (proxyProperties == mGlobalProxy) return; 2466 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 2467 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 2468 2469 String host = ""; 2470 int port = 0; 2471 String exclList = ""; 2472 String pacFileUrl = ""; 2473 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 2474 (proxyProperties.getPacFileUrl() != null))) { 2475 if (!proxyProperties.isValid()) { 2476 if (DBG) 2477 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2478 return; 2479 } 2480 mGlobalProxy = new ProxyInfo(proxyProperties); 2481 host = mGlobalProxy.getHost(); 2482 port = mGlobalProxy.getPort(); 2483 exclList = mGlobalProxy.getExclusionListAsString(); 2484 if (proxyProperties.getPacFileUrl() != null) { 2485 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 2486 } 2487 } else { 2488 mGlobalProxy = null; 2489 } 2490 ContentResolver res = mContext.getContentResolver(); 2491 final long token = Binder.clearCallingIdentity(); 2492 try { 2493 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 2494 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 2495 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 2496 exclList); 2497 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 2498 } finally { 2499 Binder.restoreCallingIdentity(token); 2500 } 2501 } 2502 2503 if (mGlobalProxy == null) { 2504 proxyProperties = mDefaultProxy; 2505 } 2506 sendProxyBroadcast(proxyProperties); 2507 } 2508 2509 private void loadGlobalProxy() { 2510 ContentResolver res = mContext.getContentResolver(); 2511 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 2512 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 2513 String exclList = Settings.Global.getString(res, 2514 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 2515 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 2516 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 2517 ProxyInfo proxyProperties; 2518 if (!TextUtils.isEmpty(pacFileUrl)) { 2519 proxyProperties = new ProxyInfo(pacFileUrl); 2520 } else { 2521 proxyProperties = new ProxyInfo(host, port, exclList); 2522 } 2523 if (!proxyProperties.isValid()) { 2524 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2525 return; 2526 } 2527 2528 synchronized (mProxyLock) { 2529 mGlobalProxy = proxyProperties; 2530 } 2531 } 2532 } 2533 2534 public ProxyInfo getGlobalProxy() { 2535 // this information is already available as a world read/writable jvm property 2536 // so this API change wouldn't have a benifit. It also breaks the passing 2537 // of proxy info to all the JVMs. 2538 // enforceAccessPermission(); 2539 synchronized (mProxyLock) { 2540 return mGlobalProxy; 2541 } 2542 } 2543 2544 private void handleApplyDefaultProxy(ProxyInfo proxy) { 2545 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 2546 && (proxy.getPacFileUrl() == null)) { 2547 proxy = null; 2548 } 2549 synchronized (mProxyLock) { 2550 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 2551 if (mDefaultProxy == proxy) return; // catches repeated nulls 2552 if (proxy != null && !proxy.isValid()) { 2553 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 2554 return; 2555 } 2556 2557 // This call could be coming from the PacManager, containing the port of the local 2558 // proxy. If this new proxy matches the global proxy then copy this proxy to the 2559 // global (to get the correct local port), and send a broadcast. 2560 // TODO: Switch PacManager to have its own message to send back rather than 2561 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 2562 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 2563 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 2564 mGlobalProxy = proxy; 2565 sendProxyBroadcast(mGlobalProxy); 2566 return; 2567 } 2568 mDefaultProxy = proxy; 2569 2570 if (mGlobalProxy != null) return; 2571 if (!mDefaultProxyDisabled) { 2572 sendProxyBroadcast(proxy); 2573 } 2574 } 2575 } 2576 2577 private void handleDeprecatedGlobalHttpProxy() { 2578 String proxy = Settings.Global.getString(mContext.getContentResolver(), 2579 Settings.Global.HTTP_PROXY); 2580 if (!TextUtils.isEmpty(proxy)) { 2581 String data[] = proxy.split(":"); 2582 if (data.length == 0) { 2583 return; 2584 } 2585 2586 String proxyHost = data[0]; 2587 int proxyPort = 8080; 2588 if (data.length > 1) { 2589 try { 2590 proxyPort = Integer.parseInt(data[1]); 2591 } catch (NumberFormatException e) { 2592 return; 2593 } 2594 } 2595 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 2596 setGlobalProxy(p); 2597 } 2598 } 2599 2600 private void sendProxyBroadcast(ProxyInfo proxy) { 2601 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 2602 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 2603 if (DBG) log("sending Proxy Broadcast for " + proxy); 2604 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 2605 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 2606 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2607 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 2608 final long ident = Binder.clearCallingIdentity(); 2609 try { 2610 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2611 } finally { 2612 Binder.restoreCallingIdentity(ident); 2613 } 2614 } 2615 2616 private static class SettingsObserver extends ContentObserver { 2617 private int mWhat; 2618 private Handler mHandler; 2619 SettingsObserver(Handler handler, int what) { 2620 super(handler); 2621 mHandler = handler; 2622 mWhat = what; 2623 } 2624 2625 void observe(Context context) { 2626 ContentResolver resolver = context.getContentResolver(); 2627 resolver.registerContentObserver(Settings.Global.getUriFor( 2628 Settings.Global.HTTP_PROXY), false, this); 2629 } 2630 2631 @Override 2632 public void onChange(boolean selfChange) { 2633 mHandler.obtainMessage(mWhat).sendToTarget(); 2634 } 2635 } 2636 2637 private static void log(String s) { 2638 Slog.d(TAG, s); 2639 } 2640 2641 private static void loge(String s) { 2642 Slog.e(TAG, s); 2643 } 2644 2645 int convertFeatureToNetworkType(int networkType, String feature) { 2646 int usedNetworkType = networkType; 2647 2648 if(networkType == ConnectivityManager.TYPE_MOBILE) { 2649 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 2650 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 2651 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 2652 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 2653 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 2654 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 2655 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 2656 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 2657 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 2658 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 2659 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 2660 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 2661 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 2662 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 2663 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 2664 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { 2665 usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; 2666 } else { 2667 Slog.e(TAG, "Can't match any mobile netTracker!"); 2668 } 2669 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 2670 if (TextUtils.equals(feature, "p2p")) { 2671 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 2672 } else { 2673 Slog.e(TAG, "Can't match any wifi netTracker!"); 2674 } 2675 } else { 2676 Slog.e(TAG, "Unexpected network type"); 2677 } 2678 return usedNetworkType; 2679 } 2680 2681 private static <T> T checkNotNull(T value, String message) { 2682 if (value == null) { 2683 throw new NullPointerException(message); 2684 } 2685 return value; 2686 } 2687 2688 /** 2689 * Prepare for a VPN application. This method is used by VpnDialogs 2690 * and not available in ConnectivityManager. Permissions are checked 2691 * in Vpn class. 2692 * @hide 2693 */ 2694 @Override 2695 public boolean prepareVpn(String oldPackage, String newPackage) { 2696 throwIfLockdownEnabled(); 2697 int user = UserHandle.getUserId(Binder.getCallingUid()); 2698 synchronized(mVpns) { 2699 return mVpns.get(user).prepare(oldPackage, newPackage); 2700 } 2701 } 2702 2703 /** 2704 * Set whether the current VPN package has the ability to launch VPNs without 2705 * user intervention. This method is used by system UIs and not available 2706 * in ConnectivityManager. Permissions are checked in Vpn class. 2707 * @hide 2708 */ 2709 @Override 2710 public void setVpnPackageAuthorization(boolean authorized) { 2711 int user = UserHandle.getUserId(Binder.getCallingUid()); 2712 synchronized(mVpns) { 2713 mVpns.get(user).setPackageAuthorization(authorized); 2714 } 2715 } 2716 2717 /** 2718 * Configure a TUN interface and return its file descriptor. Parameters 2719 * are encoded and opaque to this class. This method is used by VpnBuilder 2720 * and not available in ConnectivityManager. Permissions are checked in 2721 * Vpn class. 2722 * @hide 2723 */ 2724 @Override 2725 public ParcelFileDescriptor establishVpn(VpnConfig config) { 2726 throwIfLockdownEnabled(); 2727 int user = UserHandle.getUserId(Binder.getCallingUid()); 2728 synchronized(mVpns) { 2729 return mVpns.get(user).establish(config); 2730 } 2731 } 2732 2733 /** 2734 * Start legacy VPN, controlling native daemons as needed. Creates a 2735 * secondary thread to perform connection work, returning quickly. 2736 */ 2737 @Override 2738 public void startLegacyVpn(VpnProfile profile) { 2739 throwIfLockdownEnabled(); 2740 final LinkProperties egress = getActiveLinkProperties(); 2741 if (egress == null) { 2742 throw new IllegalStateException("Missing active network connection"); 2743 } 2744 int user = UserHandle.getUserId(Binder.getCallingUid()); 2745 synchronized(mVpns) { 2746 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 2747 } 2748 } 2749 2750 /** 2751 * Return the information of the ongoing legacy VPN. This method is used 2752 * by VpnSettings and not available in ConnectivityManager. Permissions 2753 * are checked in Vpn class. 2754 * @hide 2755 */ 2756 @Override 2757 public LegacyVpnInfo getLegacyVpnInfo() { 2758 throwIfLockdownEnabled(); 2759 int user = UserHandle.getUserId(Binder.getCallingUid()); 2760 synchronized(mVpns) { 2761 return mVpns.get(user).getLegacyVpnInfo(); 2762 } 2763 } 2764 2765 /** 2766 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 2767 * not available in ConnectivityManager. 2768 * Permissions are checked in Vpn class. 2769 * @hide 2770 */ 2771 @Override 2772 public VpnConfig getVpnConfig() { 2773 int user = UserHandle.getUserId(Binder.getCallingUid()); 2774 synchronized(mVpns) { 2775 return mVpns.get(user).getVpnConfig(); 2776 } 2777 } 2778 2779 @Override 2780 public boolean updateLockdownVpn() { 2781 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 2782 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 2783 return false; 2784 } 2785 2786 // Tear down existing lockdown if profile was removed 2787 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 2788 if (mLockdownEnabled) { 2789 if (!mKeyStore.isUnlocked()) { 2790 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 2791 return false; 2792 } 2793 2794 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 2795 final VpnProfile profile = VpnProfile.decode( 2796 profileName, mKeyStore.get(Credentials.VPN + profileName)); 2797 int user = UserHandle.getUserId(Binder.getCallingUid()); 2798 synchronized(mVpns) { 2799 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 2800 profile)); 2801 } 2802 } else { 2803 setLockdownTracker(null); 2804 } 2805 2806 return true; 2807 } 2808 2809 /** 2810 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 2811 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 2812 */ 2813 private void setLockdownTracker(LockdownVpnTracker tracker) { 2814 // Shutdown any existing tracker 2815 final LockdownVpnTracker existing = mLockdownTracker; 2816 mLockdownTracker = null; 2817 if (existing != null) { 2818 existing.shutdown(); 2819 } 2820 2821 try { 2822 if (tracker != null) { 2823 mNetd.setFirewallEnabled(true); 2824 mNetd.setFirewallInterfaceRule("lo", true); 2825 mLockdownTracker = tracker; 2826 mLockdownTracker.init(); 2827 } else { 2828 mNetd.setFirewallEnabled(false); 2829 } 2830 } catch (RemoteException e) { 2831 // ignored; NMS lives inside system_server 2832 } 2833 } 2834 2835 private void throwIfLockdownEnabled() { 2836 if (mLockdownEnabled) { 2837 throw new IllegalStateException("Unavailable in lockdown mode"); 2838 } 2839 } 2840 2841 public void supplyMessenger(int networkType, Messenger messenger) { 2842 enforceConnectivityInternalPermission(); 2843 2844 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 2845 mNetTrackers[networkType].supplyMessenger(messenger); 2846 } 2847 } 2848 2849 public int findConnectionTypeForIface(String iface) { 2850 enforceConnectivityInternalPermission(); 2851 2852 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 2853 for (NetworkStateTracker tracker : mNetTrackers) { 2854 if (tracker != null) { 2855 LinkProperties lp = tracker.getLinkProperties(); 2856 if (lp != null && iface.equals(lp.getInterfaceName())) { 2857 return tracker.getNetworkInfo().getType(); 2858 } 2859 } 2860 } 2861 return ConnectivityManager.TYPE_NONE; 2862 } 2863 2864 /** 2865 * Have mobile data fail fast if enabled. 2866 * 2867 * @param enabled DctConstants.ENABLED/DISABLED 2868 */ 2869 private void setEnableFailFastMobileData(int enabled) { 2870 int tag; 2871 2872 if (enabled == DctConstants.ENABLED) { 2873 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 2874 } else { 2875 tag = mEnableFailFastMobileDataTag.get(); 2876 } 2877 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 2878 enabled)); 2879 } 2880 2881 private boolean isMobileDataStateTrackerReady() { 2882 MobileDataStateTracker mdst = 2883 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 2884 return (mdst != null) && (mdst.isReady()); 2885 } 2886 2887 /** 2888 * The ResultReceiver resultCode for checkMobileProvisioning (CMP_RESULT_CODE) 2889 */ 2890 2891 /** 2892 * No connection was possible to the network. 2893 * This is NOT a warm sim. 2894 */ 2895 private static final int CMP_RESULT_CODE_NO_CONNECTION = 0; 2896 2897 /** 2898 * A connection was made to the internet, all is well. 2899 * This is NOT a warm sim. 2900 */ 2901 private static final int CMP_RESULT_CODE_CONNECTABLE = 1; 2902 2903 /** 2904 * A connection was made but no dns server was available to resolve a name to address. 2905 * This is NOT a warm sim since provisioning network is supported. 2906 */ 2907 private static final int CMP_RESULT_CODE_NO_DNS = 2; 2908 2909 /** 2910 * A connection was made but could not open a TCP connection. 2911 * This is NOT a warm sim since provisioning network is supported. 2912 */ 2913 private static final int CMP_RESULT_CODE_NO_TCP_CONNECTION = 3; 2914 2915 /** 2916 * A connection was made but there was a redirection, we appear to be in walled garden. 2917 * This is an indication of a warm sim on a mobile network such as T-Mobile. 2918 */ 2919 private static final int CMP_RESULT_CODE_REDIRECTED = 4; 2920 2921 /** 2922 * The mobile network is a provisioning network. 2923 * This is an indication of a warm sim on a mobile network such as AT&T. 2924 */ 2925 private static final int CMP_RESULT_CODE_PROVISIONING_NETWORK = 5; 2926 2927 /** 2928 * The mobile network is provisioning 2929 */ 2930 private static final int CMP_RESULT_CODE_IS_PROVISIONING = 6; 2931 2932 private AtomicBoolean mIsProvisioningNetwork = new AtomicBoolean(false); 2933 private AtomicBoolean mIsStartingProvisioning = new AtomicBoolean(false); 2934 2935 private AtomicBoolean mIsCheckingMobileProvisioning = new AtomicBoolean(false); 2936 2937 @Override 2938 public int checkMobileProvisioning(int suggestedTimeOutMs) { 2939 int timeOutMs = -1; 2940 if (DBG) log("checkMobileProvisioning: E suggestedTimeOutMs=" + suggestedTimeOutMs); 2941 enforceConnectivityInternalPermission(); 2942 2943 final long token = Binder.clearCallingIdentity(); 2944 try { 2945 timeOutMs = suggestedTimeOutMs; 2946 if (suggestedTimeOutMs > CheckMp.MAX_TIMEOUT_MS) { 2947 timeOutMs = CheckMp.MAX_TIMEOUT_MS; 2948 } 2949 2950 // Check that mobile networks are supported 2951 if (!isNetworkSupported(ConnectivityManager.TYPE_MOBILE) 2952 || !isNetworkSupported(ConnectivityManager.TYPE_MOBILE_HIPRI)) { 2953 if (DBG) log("checkMobileProvisioning: X no mobile network"); 2954 return timeOutMs; 2955 } 2956 2957 // If we're already checking don't do it again 2958 // TODO: Add a queue of results... 2959 if (mIsCheckingMobileProvisioning.getAndSet(true)) { 2960 if (DBG) log("checkMobileProvisioning: X already checking ignore for the moment"); 2961 return timeOutMs; 2962 } 2963 2964 // Start off with mobile notification off 2965 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 2966 2967 CheckMp checkMp = new CheckMp(mContext, this); 2968 CheckMp.CallBack cb = new CheckMp.CallBack() { 2969 @Override 2970 void onComplete(Integer result) { 2971 if (DBG) log("CheckMp.onComplete: result=" + result); 2972 NetworkInfo ni = 2973 mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI].getNetworkInfo(); 2974 switch(result) { 2975 case CMP_RESULT_CODE_CONNECTABLE: 2976 case CMP_RESULT_CODE_NO_CONNECTION: 2977 case CMP_RESULT_CODE_NO_DNS: 2978 case CMP_RESULT_CODE_NO_TCP_CONNECTION: { 2979 if (DBG) log("CheckMp.onComplete: ignore, connected or no connection"); 2980 break; 2981 } 2982 case CMP_RESULT_CODE_REDIRECTED: { 2983 if (DBG) log("CheckMp.onComplete: warm sim"); 2984 String url = getMobileProvisioningUrl(); 2985 if (TextUtils.isEmpty(url)) { 2986 url = getMobileRedirectedProvisioningUrl(); 2987 } 2988 if (TextUtils.isEmpty(url) == false) { 2989 if (DBG) log("CheckMp.onComplete: warm (redirected), url=" + url); 2990 setProvNotificationVisible(true, 2991 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 2992 url); 2993 } else { 2994 if (DBG) log("CheckMp.onComplete: warm (redirected), no url"); 2995 } 2996 break; 2997 } 2998 case CMP_RESULT_CODE_PROVISIONING_NETWORK: { 2999 String url = getMobileProvisioningUrl(); 3000 if (TextUtils.isEmpty(url) == false) { 3001 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), url=" + url); 3002 setProvNotificationVisible(true, 3003 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 3004 url); 3005 // Mark that we've got a provisioning network and 3006 // Disable Mobile Data until user actually starts provisioning. 3007 mIsProvisioningNetwork.set(true); 3008 MobileDataStateTracker mdst = (MobileDataStateTracker) 3009 mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3010 3011 // Disable radio until user starts provisioning 3012 mdst.setRadio(false); 3013 } else { 3014 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), no url"); 3015 } 3016 break; 3017 } 3018 case CMP_RESULT_CODE_IS_PROVISIONING: { 3019 // FIXME: Need to know when provisioning is done. Probably we can 3020 // check the completion status if successful we're done if we 3021 // "timedout" or still connected to provisioning APN turn off data? 3022 if (DBG) log("CheckMp.onComplete: provisioning started"); 3023 mIsStartingProvisioning.set(false); 3024 break; 3025 } 3026 default: { 3027 loge("CheckMp.onComplete: ignore unexpected result=" + result); 3028 break; 3029 } 3030 } 3031 mIsCheckingMobileProvisioning.set(false); 3032 } 3033 }; 3034 CheckMp.Params params = 3035 new CheckMp.Params(checkMp.getDefaultUrl(), timeOutMs, cb); 3036 if (DBG) log("checkMobileProvisioning: params=" + params); 3037 // TODO: Reenable when calls to the now defunct 3038 // MobileDataStateTracker.isProvisioningNetwork() are removed. 3039 // This code should be moved to the Telephony code. 3040 // checkMp.execute(params); 3041 } finally { 3042 Binder.restoreCallingIdentity(token); 3043 if (DBG) log("checkMobileProvisioning: X"); 3044 } 3045 return timeOutMs; 3046 } 3047 3048 static class CheckMp extends 3049 AsyncTask<CheckMp.Params, Void, Integer> { 3050 private static final String CHECKMP_TAG = "CheckMp"; 3051 3052 // adb shell setprop persist.checkmp.testfailures 1 to enable testing failures 3053 private static boolean mTestingFailures; 3054 3055 // Choosing 4 loops as half of them will use HTTPS and the other half HTTP 3056 private static final int MAX_LOOPS = 4; 3057 3058 // Number of milli-seconds to complete all of the retires 3059 public static final int MAX_TIMEOUT_MS = 60000; 3060 3061 // The socket should retry only 5 seconds, the default is longer 3062 private static final int SOCKET_TIMEOUT_MS = 5000; 3063 3064 // Sleep time for network errors 3065 private static final int NET_ERROR_SLEEP_SEC = 3; 3066 3067 // Sleep time for network route establishment 3068 private static final int NET_ROUTE_ESTABLISHMENT_SLEEP_SEC = 3; 3069 3070 // Short sleep time for polling :( 3071 private static final int POLLING_SLEEP_SEC = 1; 3072 3073 private Context mContext; 3074 private ConnectivityService mCs; 3075 private TelephonyManager mTm; 3076 private Params mParams; 3077 3078 /** 3079 * Parameters for AsyncTask.execute 3080 */ 3081 static class Params { 3082 private String mUrl; 3083 private long mTimeOutMs; 3084 private CallBack mCb; 3085 3086 Params(String url, long timeOutMs, CallBack cb) { 3087 mUrl = url; 3088 mTimeOutMs = timeOutMs; 3089 mCb = cb; 3090 } 3091 3092 @Override 3093 public String toString() { 3094 return "{" + " url=" + mUrl + " mTimeOutMs=" + mTimeOutMs + " mCb=" + mCb + "}"; 3095 } 3096 } 3097 3098 // As explained to me by Brian Carlstrom and Kenny Root, Certificates can be 3099 // issued by name or ip address, for Google its by name so when we construct 3100 // this HostnameVerifier we'll pass the original Uri and use it to verify 3101 // the host. If the host name in the original uril fails we'll test the 3102 // hostname parameter just incase things change. 3103 static class CheckMpHostnameVerifier implements HostnameVerifier { 3104 Uri mOrgUri; 3105 3106 CheckMpHostnameVerifier(Uri orgUri) { 3107 mOrgUri = orgUri; 3108 } 3109 3110 @Override 3111 public boolean verify(String hostname, SSLSession session) { 3112 HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier(); 3113 String orgUriHost = mOrgUri.getHost(); 3114 boolean retVal = hv.verify(orgUriHost, session) || hv.verify(hostname, session); 3115 if (DBG) { 3116 log("isMobileOk: hostnameVerify retVal=" + retVal + " hostname=" + hostname 3117 + " orgUriHost=" + orgUriHost); 3118 } 3119 return retVal; 3120 } 3121 } 3122 3123 /** 3124 * The call back object passed in Params. onComplete will be called 3125 * on the main thread. 3126 */ 3127 abstract static class CallBack { 3128 // Called on the main thread. 3129 abstract void onComplete(Integer result); 3130 } 3131 3132 public CheckMp(Context context, ConnectivityService cs) { 3133 if (Build.IS_DEBUGGABLE) { 3134 mTestingFailures = 3135 SystemProperties.getInt("persist.checkmp.testfailures", 0) == 1; 3136 } else { 3137 mTestingFailures = false; 3138 } 3139 3140 mContext = context; 3141 mCs = cs; 3142 3143 // Setup access to TelephonyService we'll be using. 3144 mTm = (TelephonyManager) mContext.getSystemService( 3145 Context.TELEPHONY_SERVICE); 3146 } 3147 3148 /** 3149 * Get the default url to use for the test. 3150 */ 3151 public String getDefaultUrl() { 3152 // See http://go/clientsdns for usage approval 3153 String server = Settings.Global.getString(mContext.getContentResolver(), 3154 Settings.Global.CAPTIVE_PORTAL_SERVER); 3155 if (server == null) { 3156 server = "clients3.google.com"; 3157 } 3158 return "http://" + server + "/generate_204"; 3159 } 3160 3161 /** 3162 * Detect if its possible to connect to the http url. DNS based detection techniques 3163 * do not work at all hotspots. The best way to check is to perform a request to 3164 * a known address that fetches the data we expect. 3165 */ 3166 private synchronized Integer isMobileOk(Params params) { 3167 Integer result = CMP_RESULT_CODE_NO_CONNECTION; 3168 Uri orgUri = Uri.parse(params.mUrl); 3169 Random rand = new Random(); 3170 mParams = params; 3171 3172 if (mCs.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false) { 3173 result = CMP_RESULT_CODE_NO_CONNECTION; 3174 log("isMobileOk: X not mobile capable result=" + result); 3175 return result; 3176 } 3177 3178 if (mCs.mIsStartingProvisioning.get()) { 3179 result = CMP_RESULT_CODE_IS_PROVISIONING; 3180 log("isMobileOk: X is provisioning result=" + result); 3181 return result; 3182 } 3183 3184 // See if we've already determined we've got a provisioning connection, 3185 // if so we don't need to do anything active. 3186 MobileDataStateTracker mdstDefault = (MobileDataStateTracker) 3187 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3188 boolean isDefaultProvisioning = mdstDefault.isProvisioningNetwork(); 3189 log("isMobileOk: isDefaultProvisioning=" + isDefaultProvisioning); 3190 3191 MobileDataStateTracker mdstHipri = (MobileDataStateTracker) 3192 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3193 boolean isHipriProvisioning = mdstHipri.isProvisioningNetwork(); 3194 log("isMobileOk: isHipriProvisioning=" + isHipriProvisioning); 3195 3196 if (isDefaultProvisioning || isHipriProvisioning) { 3197 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3198 log("isMobileOk: X default || hipri is provisioning result=" + result); 3199 return result; 3200 } 3201 3202 try { 3203 // Continue trying to connect until time has run out 3204 long endTime = SystemClock.elapsedRealtime() + params.mTimeOutMs; 3205 3206 if (!mCs.isMobileDataStateTrackerReady()) { 3207 // Wait for MobileDataStateTracker to be ready. 3208 if (DBG) log("isMobileOk: mdst is not ready"); 3209 while(SystemClock.elapsedRealtime() < endTime) { 3210 if (mCs.isMobileDataStateTrackerReady()) { 3211 // Enable fail fast as we'll do retries here and use a 3212 // hipri connection so the default connection stays active. 3213 if (DBG) log("isMobileOk: mdst ready, enable fail fast of mobile data"); 3214 mCs.setEnableFailFastMobileData(DctConstants.ENABLED); 3215 break; 3216 } 3217 sleep(POLLING_SLEEP_SEC); 3218 } 3219 } 3220 3221 log("isMobileOk: start hipri url=" + params.mUrl); 3222 3223 // First wait until we can start using hipri 3224 Binder binder = new Binder(); 3225/* 3226 while(SystemClock.elapsedRealtime() < endTime) { 3227 int ret = mCs.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3228 Phone.FEATURE_ENABLE_HIPRI, binder); 3229 if ((ret == PhoneConstants.APN_ALREADY_ACTIVE) 3230 || (ret == PhoneConstants.APN_REQUEST_STARTED)) { 3231 log("isMobileOk: hipri started"); 3232 break; 3233 } 3234 if (VDBG) log("isMobileOk: hipri not started yet"); 3235 result = CMP_RESULT_CODE_NO_CONNECTION; 3236 sleep(POLLING_SLEEP_SEC); 3237 } 3238*/ 3239 // Continue trying to connect until time has run out 3240 while(SystemClock.elapsedRealtime() < endTime) { 3241 try { 3242 // Wait for hipri to connect. 3243 // TODO: Don't poll and handle situation where hipri fails 3244 // because default is retrying. See b/9569540 3245 NetworkInfo.State state = mCs 3246 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3247 if (state != NetworkInfo.State.CONNECTED) { 3248 if (true/*VDBG*/) { 3249 log("isMobileOk: not connected ni=" + 3250 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3251 } 3252 sleep(POLLING_SLEEP_SEC); 3253 result = CMP_RESULT_CODE_NO_CONNECTION; 3254 continue; 3255 } 3256 3257 // Hipri has started check if this is a provisioning url 3258 MobileDataStateTracker mdst = (MobileDataStateTracker) 3259 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3260 if (mdst.isProvisioningNetwork()) { 3261 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3262 if (DBG) log("isMobileOk: X isProvisioningNetwork result=" + result); 3263 return result; 3264 } else { 3265 if (DBG) log("isMobileOk: isProvisioningNetwork is false, continue"); 3266 } 3267 3268 // Get of the addresses associated with the url host. We need to use the 3269 // address otherwise HttpURLConnection object will use the name to get 3270 // the addresses and will try every address but that will bypass the 3271 // route to host we setup and the connection could succeed as the default 3272 // interface might be connected to the internet via wifi or other interface. 3273 InetAddress[] addresses; 3274 try { 3275 addresses = InetAddress.getAllByName(orgUri.getHost()); 3276 } catch (UnknownHostException e) { 3277 result = CMP_RESULT_CODE_NO_DNS; 3278 log("isMobileOk: X UnknownHostException result=" + result); 3279 return result; 3280 } 3281 log("isMobileOk: addresses=" + inetAddressesToString(addresses)); 3282 3283 // Get the type of addresses supported by this link 3284 LinkProperties lp = mCs.getLinkPropertiesForTypeInternal( 3285 ConnectivityManager.TYPE_MOBILE_HIPRI); 3286 boolean linkHasIpv4 = lp.hasIPv4Address(); 3287 boolean linkHasIpv6 = lp.hasGlobalIPv6Address(); 3288 log("isMobileOk: linkHasIpv4=" + linkHasIpv4 3289 + " linkHasIpv6=" + linkHasIpv6); 3290 3291 final ArrayList<InetAddress> validAddresses = 3292 new ArrayList<InetAddress>(addresses.length); 3293 3294 for (InetAddress addr : addresses) { 3295 if (((addr instanceof Inet4Address) && linkHasIpv4) || 3296 ((addr instanceof Inet6Address) && linkHasIpv6)) { 3297 validAddresses.add(addr); 3298 } 3299 } 3300 3301 if (validAddresses.size() == 0) { 3302 return CMP_RESULT_CODE_NO_CONNECTION; 3303 } 3304 3305 int addrTried = 0; 3306 while (true) { 3307 // Loop through at most MAX_LOOPS valid addresses or until 3308 // we run out of time 3309 if (addrTried++ >= MAX_LOOPS) { 3310 log("isMobileOk: too many loops tried - giving up"); 3311 break; 3312 } 3313 if (SystemClock.elapsedRealtime() >= endTime) { 3314 log("isMobileOk: spend too much time - giving up"); 3315 break; 3316 } 3317 3318 InetAddress hostAddr = validAddresses.get(rand.nextInt( 3319 validAddresses.size())); 3320 3321 // Make a route to host so we check the specific interface. 3322 if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI, 3323 hostAddr.getAddress())) { 3324 // Wait a short time to be sure the route is established ?? 3325 log("isMobileOk:" 3326 + " wait to establish route to hostAddr=" + hostAddr); 3327 sleep(NET_ROUTE_ESTABLISHMENT_SLEEP_SEC); 3328 } else { 3329 log("isMobileOk:" 3330 + " could not establish route to hostAddr=" + hostAddr); 3331 // Wait a short time before the next attempt 3332 sleep(NET_ERROR_SLEEP_SEC); 3333 continue; 3334 } 3335 3336 // Rewrite the url to have numeric address to use the specific route 3337 // using http for half the attempts and https for the other half. 3338 // Doing https first and http second as on a redirected walled garden 3339 // such as t-mobile uses we get a SocketTimeoutException: "SSL 3340 // handshake timed out" which we declare as 3341 // CMP_RESULT_CODE_NO_TCP_CONNECTION. We could change this, but by 3342 // having http second we will be using logic used for some time. 3343 URL newUrl; 3344 String scheme = (addrTried <= (MAX_LOOPS/2)) ? "https" : "http"; 3345 newUrl = new URL(scheme, hostAddr.getHostAddress(), 3346 orgUri.getPath()); 3347 log("isMobileOk: newUrl=" + newUrl); 3348 3349 HttpURLConnection urlConn = null; 3350 try { 3351 // Open the connection set the request headers and get the response 3352 urlConn = (HttpURLConnection)newUrl.openConnection( 3353 java.net.Proxy.NO_PROXY); 3354 if (scheme.equals("https")) { 3355 ((HttpsURLConnection)urlConn).setHostnameVerifier( 3356 new CheckMpHostnameVerifier(orgUri)); 3357 } 3358 urlConn.setInstanceFollowRedirects(false); 3359 urlConn.setConnectTimeout(SOCKET_TIMEOUT_MS); 3360 urlConn.setReadTimeout(SOCKET_TIMEOUT_MS); 3361 urlConn.setUseCaches(false); 3362 urlConn.setAllowUserInteraction(false); 3363 // Set the "Connection" to "Close" as by default "Keep-Alive" 3364 // is used which is useless in this case. 3365 urlConn.setRequestProperty("Connection", "close"); 3366 int responseCode = urlConn.getResponseCode(); 3367 3368 // For debug display the headers 3369 Map<String, List<String>> headers = urlConn.getHeaderFields(); 3370 log("isMobileOk: headers=" + headers); 3371 3372 // Close the connection 3373 urlConn.disconnect(); 3374 urlConn = null; 3375 3376 if (mTestingFailures) { 3377 // Pretend no connection, this tests using http and https 3378 result = CMP_RESULT_CODE_NO_CONNECTION; 3379 log("isMobileOk: TESTING_FAILURES, pretend no connction"); 3380 continue; 3381 } 3382 3383 if (responseCode == 204) { 3384 // Return 3385 result = CMP_RESULT_CODE_CONNECTABLE; 3386 log("isMobileOk: X got expected responseCode=" + responseCode 3387 + " result=" + result); 3388 return result; 3389 } else { 3390 // Retry to be sure this was redirected, we've gotten 3391 // occasions where a server returned 200 even though 3392 // the device didn't have a "warm" sim. 3393 log("isMobileOk: not expected responseCode=" + responseCode); 3394 // TODO - it would be nice in the single-address case to do 3395 // another DNS resolve here, but flushing the cache is a bit 3396 // heavy-handed. 3397 result = CMP_RESULT_CODE_REDIRECTED; 3398 } 3399 } catch (Exception e) { 3400 log("isMobileOk: HttpURLConnection Exception" + e); 3401 result = CMP_RESULT_CODE_NO_TCP_CONNECTION; 3402 if (urlConn != null) { 3403 urlConn.disconnect(); 3404 urlConn = null; 3405 } 3406 sleep(NET_ERROR_SLEEP_SEC); 3407 continue; 3408 } 3409 } 3410 log("isMobileOk: X loops|timed out result=" + result); 3411 return result; 3412 } catch (Exception e) { 3413 log("isMobileOk: Exception e=" + e); 3414 continue; 3415 } 3416 } 3417 log("isMobileOk: timed out"); 3418 } finally { 3419 log("isMobileOk: F stop hipri"); 3420 mCs.setEnableFailFastMobileData(DctConstants.DISABLED); 3421// mCs.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3422// Phone.FEATURE_ENABLE_HIPRI); 3423 3424 // Wait for hipri to disconnect. 3425 long endTime = SystemClock.elapsedRealtime() + 5000; 3426 3427 while(SystemClock.elapsedRealtime() < endTime) { 3428 NetworkInfo.State state = mCs 3429 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3430 if (state != NetworkInfo.State.DISCONNECTED) { 3431 if (VDBG) { 3432 log("isMobileOk: connected ni=" + 3433 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3434 } 3435 sleep(POLLING_SLEEP_SEC); 3436 continue; 3437 } 3438 } 3439 3440 log("isMobileOk: X result=" + result); 3441 } 3442 return result; 3443 } 3444 3445 @Override 3446 protected Integer doInBackground(Params... params) { 3447 return isMobileOk(params[0]); 3448 } 3449 3450 @Override 3451 protected void onPostExecute(Integer result) { 3452 log("onPostExecute: result=" + result); 3453 if ((mParams != null) && (mParams.mCb != null)) { 3454 mParams.mCb.onComplete(result); 3455 } 3456 } 3457 3458 private String inetAddressesToString(InetAddress[] addresses) { 3459 StringBuffer sb = new StringBuffer(); 3460 boolean firstTime = true; 3461 for(InetAddress addr : addresses) { 3462 if (firstTime) { 3463 firstTime = false; 3464 } else { 3465 sb.append(","); 3466 } 3467 sb.append(addr); 3468 } 3469 return sb.toString(); 3470 } 3471 3472 private void printNetworkInfo() { 3473 boolean hasIccCard = mTm.hasIccCard(); 3474 int simState = mTm.getSimState(); 3475 log("hasIccCard=" + hasIccCard 3476 + " simState=" + simState); 3477 NetworkInfo[] ni = mCs.getAllNetworkInfo(); 3478 if (ni != null) { 3479 log("ni.length=" + ni.length); 3480 for (NetworkInfo netInfo: ni) { 3481 log("netInfo=" + netInfo.toString()); 3482 } 3483 } else { 3484 log("no network info ni=null"); 3485 } 3486 } 3487 3488 /** 3489 * Sleep for a few seconds then return. 3490 * @param seconds 3491 */ 3492 private static void sleep(int seconds) { 3493 long stopTime = System.nanoTime() + (seconds * 1000000000); 3494 long sleepTime; 3495 while ((sleepTime = stopTime - System.nanoTime()) > 0) { 3496 try { 3497 Thread.sleep(sleepTime / 1000000); 3498 } catch (InterruptedException ignored) { 3499 } 3500 } 3501 } 3502 3503 private static void log(String s) { 3504 Slog.d(ConnectivityService.TAG, "[" + CHECKMP_TAG + "] " + s); 3505 } 3506 } 3507 3508 // TODO: Move to ConnectivityManager and make public? 3509 private static final String CONNECTED_TO_PROVISIONING_NETWORK_ACTION = 3510 "com.android.server.connectivityservice.CONNECTED_TO_PROVISIONING_NETWORK_ACTION"; 3511 3512 private BroadcastReceiver mProvisioningReceiver = new BroadcastReceiver() { 3513 @Override 3514 public void onReceive(Context context, Intent intent) { 3515 if (intent.getAction().equals(CONNECTED_TO_PROVISIONING_NETWORK_ACTION)) { 3516 handleMobileProvisioningAction(intent.getStringExtra("EXTRA_URL")); 3517 } 3518 } 3519 }; 3520 3521 private void handleMobileProvisioningAction(String url) { 3522 // Mark notification as not visible 3523 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3524 3525 // Check airplane mode 3526 boolean isAirplaneModeOn = Settings.System.getInt(mContext.getContentResolver(), 3527 Settings.Global.AIRPLANE_MODE_ON, 0) == 1; 3528 // If provisioning network and not in airplane mode handle as a special case, 3529 // otherwise launch browser with the intent directly. 3530 if (mIsProvisioningNetwork.get() && !isAirplaneModeOn) { 3531 if (DBG) log("handleMobileProvisioningAction: on prov network enable then launch"); 3532 mIsProvisioningNetwork.set(false); 3533// mIsStartingProvisioning.set(true); 3534// MobileDataStateTracker mdst = (MobileDataStateTracker) 3535// mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3536 // Radio was disabled on CMP_RESULT_CODE_PROVISIONING_NETWORK, enable it here 3537// mdst.setRadio(true); 3538// mdst.setEnableFailFastMobileData(DctConstants.ENABLED); 3539// mdst.enableMobileProvisioning(url); 3540 } else { 3541 if (DBG) log("handleMobileProvisioningAction: not prov network"); 3542 mIsProvisioningNetwork.set(false); 3543 // Check for apps that can handle provisioning first 3544 Intent provisioningIntent = new Intent(TelephonyIntents.ACTION_CARRIER_SETUP); 3545 List<String> carrierPackages = 3546 mTelephonyManager.getCarrierPackageNamesForBroadcastIntent(provisioningIntent); 3547 if (carrierPackages != null && !carrierPackages.isEmpty()) { 3548 if (carrierPackages.size() != 1) { 3549 if (DBG) log("Multiple matching carrier apps found, launching the first."); 3550 } 3551 provisioningIntent.setPackage(carrierPackages.get(0)); 3552 provisioningIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3553 Intent.FLAG_ACTIVITY_NEW_TASK); 3554 mContext.startActivity(provisioningIntent); 3555 } else { 3556 // If no apps exist, use standard URL ACTION_VIEW method 3557 Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, 3558 Intent.CATEGORY_APP_BROWSER); 3559 newIntent.setData(Uri.parse(url)); 3560 newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3561 Intent.FLAG_ACTIVITY_NEW_TASK); 3562 try { 3563 mContext.startActivity(newIntent); 3564 } catch (ActivityNotFoundException e) { 3565 loge("handleMobileProvisioningAction: startActivity failed" + e); 3566 } 3567 } 3568 } 3569 } 3570 3571 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 3572 private volatile boolean mIsNotificationVisible = false; 3573 3574 private void setProvNotificationVisible(boolean visible, int networkType, String extraInfo, 3575 String url) { 3576 if (DBG) { 3577 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 3578 + " extraInfo=" + extraInfo + " url=" + url); 3579 } 3580 Intent intent = null; 3581 PendingIntent pendingIntent = null; 3582 if (visible) { 3583 switch (networkType) { 3584 case ConnectivityManager.TYPE_WIFI: 3585 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3586 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3587 Intent.FLAG_ACTIVITY_NEW_TASK); 3588 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3589 break; 3590 case ConnectivityManager.TYPE_MOBILE: 3591 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3592 intent = new Intent(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 3593 intent.putExtra("EXTRA_URL", url); 3594 intent.setFlags(0); 3595 pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 3596 break; 3597 default: 3598 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3599 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3600 Intent.FLAG_ACTIVITY_NEW_TASK); 3601 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3602 break; 3603 } 3604 } 3605 // Concatenate the range of types onto the range of NetIDs. 3606 int id = MAX_NET_ID + 1 + (networkType - ConnectivityManager.TYPE_NONE); 3607 setProvNotificationVisibleIntent(visible, id, networkType, extraInfo, pendingIntent); 3608 } 3609 3610 /** 3611 * Show or hide network provisioning notificaitons. 3612 * 3613 * @param id an identifier that uniquely identifies this notification. This must match 3614 * between show and hide calls. We use the NetID value but for legacy callers 3615 * we concatenate the range of types with the range of NetIDs. 3616 */ 3617 private void setProvNotificationVisibleIntent(boolean visible, int id, int networkType, 3618 String extraInfo, PendingIntent intent) { 3619 if (DBG) { 3620 log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + 3621 networkType + " extraInfo=" + extraInfo); 3622 } 3623 3624 Resources r = Resources.getSystem(); 3625 NotificationManager notificationManager = (NotificationManager) mContext 3626 .getSystemService(Context.NOTIFICATION_SERVICE); 3627 3628 if (visible) { 3629 CharSequence title; 3630 CharSequence details; 3631 int icon; 3632 Notification notification = new Notification(); 3633 switch (networkType) { 3634 case ConnectivityManager.TYPE_WIFI: 3635 title = r.getString(R.string.wifi_available_sign_in, 0); 3636 details = r.getString(R.string.network_available_sign_in_detailed, 3637 extraInfo); 3638 icon = R.drawable.stat_notify_wifi_in_range; 3639 break; 3640 case ConnectivityManager.TYPE_MOBILE: 3641 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3642 title = r.getString(R.string.network_available_sign_in, 0); 3643 // TODO: Change this to pull from NetworkInfo once a printable 3644 // name has been added to it 3645 details = mTelephonyManager.getNetworkOperatorName(); 3646 icon = R.drawable.stat_notify_rssi_in_range; 3647 break; 3648 default: 3649 title = r.getString(R.string.network_available_sign_in, 0); 3650 details = r.getString(R.string.network_available_sign_in_detailed, 3651 extraInfo); 3652 icon = R.drawable.stat_notify_rssi_in_range; 3653 break; 3654 } 3655 3656 notification.when = 0; 3657 notification.icon = icon; 3658 notification.flags = Notification.FLAG_AUTO_CANCEL; 3659 notification.tickerText = title; 3660 notification.color = mContext.getResources().getColor( 3661 com.android.internal.R.color.system_notification_accent_color); 3662 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 3663 notification.contentIntent = intent; 3664 3665 try { 3666 notificationManager.notify(NOTIFICATION_ID, id, notification); 3667 } catch (NullPointerException npe) { 3668 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 3669 npe.printStackTrace(); 3670 } 3671 } else { 3672 try { 3673 notificationManager.cancel(NOTIFICATION_ID, id); 3674 } catch (NullPointerException npe) { 3675 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 3676 npe.printStackTrace(); 3677 } 3678 } 3679 mIsNotificationVisible = visible; 3680 } 3681 3682 /** Location to an updatable file listing carrier provisioning urls. 3683 * An example: 3684 * 3685 * <?xml version="1.0" encoding="utf-8"?> 3686 * <provisioningUrls> 3687 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 3688 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 3689 * </provisioningUrls> 3690 */ 3691 private static final String PROVISIONING_URL_PATH = 3692 "/data/misc/radio/provisioning_urls.xml"; 3693 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 3694 3695 /** XML tag for root element. */ 3696 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 3697 /** XML tag for individual url */ 3698 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 3699 /** XML tag for redirected url */ 3700 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 3701 /** XML attribute for mcc */ 3702 private static final String ATTR_MCC = "mcc"; 3703 /** XML attribute for mnc */ 3704 private static final String ATTR_MNC = "mnc"; 3705 3706 private static final int REDIRECTED_PROVISIONING = 1; 3707 private static final int PROVISIONING = 2; 3708 3709 private String getProvisioningUrlBaseFromFile(int type) { 3710 FileReader fileReader = null; 3711 XmlPullParser parser = null; 3712 Configuration config = mContext.getResources().getConfiguration(); 3713 String tagType; 3714 3715 switch (type) { 3716 case PROVISIONING: 3717 tagType = TAG_PROVISIONING_URL; 3718 break; 3719 case REDIRECTED_PROVISIONING: 3720 tagType = TAG_REDIRECTED_URL; 3721 break; 3722 default: 3723 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 3724 type); 3725 } 3726 3727 try { 3728 fileReader = new FileReader(mProvisioningUrlFile); 3729 parser = Xml.newPullParser(); 3730 parser.setInput(fileReader); 3731 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 3732 3733 while (true) { 3734 XmlUtils.nextElement(parser); 3735 3736 String element = parser.getName(); 3737 if (element == null) break; 3738 3739 if (element.equals(tagType)) { 3740 String mcc = parser.getAttributeValue(null, ATTR_MCC); 3741 try { 3742 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 3743 String mnc = parser.getAttributeValue(null, ATTR_MNC); 3744 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 3745 parser.next(); 3746 if (parser.getEventType() == XmlPullParser.TEXT) { 3747 return parser.getText(); 3748 } 3749 } 3750 } 3751 } catch (NumberFormatException e) { 3752 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 3753 } 3754 } 3755 } 3756 return null; 3757 } catch (FileNotFoundException e) { 3758 loge("Carrier Provisioning Urls file not found"); 3759 } catch (XmlPullParserException e) { 3760 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 3761 } catch (IOException e) { 3762 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 3763 } finally { 3764 if (fileReader != null) { 3765 try { 3766 fileReader.close(); 3767 } catch (IOException e) {} 3768 } 3769 } 3770 return null; 3771 } 3772 3773 @Override 3774 public String getMobileRedirectedProvisioningUrl() { 3775 enforceConnectivityInternalPermission(); 3776 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 3777 if (TextUtils.isEmpty(url)) { 3778 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 3779 } 3780 return url; 3781 } 3782 3783 @Override 3784 public String getMobileProvisioningUrl() { 3785 enforceConnectivityInternalPermission(); 3786 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 3787 if (TextUtils.isEmpty(url)) { 3788 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 3789 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 3790 } else { 3791 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 3792 } 3793 // populate the iccid, imei and phone number in the provisioning url. 3794 if (!TextUtils.isEmpty(url)) { 3795 String phoneNumber = mTelephonyManager.getLine1Number(); 3796 if (TextUtils.isEmpty(phoneNumber)) { 3797 phoneNumber = "0000000000"; 3798 } 3799 url = String.format(url, 3800 mTelephonyManager.getSimSerialNumber() /* ICCID */, 3801 mTelephonyManager.getDeviceId() /* IMEI */, 3802 phoneNumber /* Phone numer */); 3803 } 3804 3805 return url; 3806 } 3807 3808 @Override 3809 public void setProvisioningNotificationVisible(boolean visible, int networkType, 3810 String extraInfo, String url) { 3811 enforceConnectivityInternalPermission(); 3812 setProvNotificationVisible(visible, networkType, extraInfo, url); 3813 } 3814 3815 @Override 3816 public void setAirplaneMode(boolean enable) { 3817 enforceConnectivityInternalPermission(); 3818 final long ident = Binder.clearCallingIdentity(); 3819 try { 3820 final ContentResolver cr = mContext.getContentResolver(); 3821 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 3822 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 3823 intent.putExtra("state", enable); 3824 mContext.sendBroadcast(intent); 3825 } finally { 3826 Binder.restoreCallingIdentity(ident); 3827 } 3828 } 3829 3830 private void onUserStart(int userId) { 3831 synchronized(mVpns) { 3832 Vpn userVpn = mVpns.get(userId); 3833 if (userVpn != null) { 3834 loge("Starting user already has a VPN"); 3835 return; 3836 } 3837 userVpn = new Vpn(mHandler.getLooper(), mContext, mNetd, this, userId); 3838 mVpns.put(userId, userVpn); 3839 } 3840 } 3841 3842 private void onUserStop(int userId) { 3843 synchronized(mVpns) { 3844 Vpn userVpn = mVpns.get(userId); 3845 if (userVpn == null) { 3846 loge("Stopping user has no VPN"); 3847 return; 3848 } 3849 mVpns.delete(userId); 3850 } 3851 } 3852 3853 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 3854 @Override 3855 public void onReceive(Context context, Intent intent) { 3856 final String action = intent.getAction(); 3857 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3858 if (userId == UserHandle.USER_NULL) return; 3859 3860 if (Intent.ACTION_USER_STARTING.equals(action)) { 3861 onUserStart(userId); 3862 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 3863 onUserStop(userId); 3864 } 3865 } 3866 }; 3867 3868 @Override 3869 public LinkQualityInfo getLinkQualityInfo(int networkType) { 3870 enforceAccessPermission(); 3871 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 3872 return mNetTrackers[networkType].getLinkQualityInfo(); 3873 } else { 3874 return null; 3875 } 3876 } 3877 3878 @Override 3879 public LinkQualityInfo getActiveLinkQualityInfo() { 3880 enforceAccessPermission(); 3881 if (isNetworkTypeValid(mActiveDefaultNetwork) && 3882 mNetTrackers[mActiveDefaultNetwork] != null) { 3883 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 3884 } else { 3885 return null; 3886 } 3887 } 3888 3889 @Override 3890 public LinkQualityInfo[] getAllLinkQualityInfo() { 3891 enforceAccessPermission(); 3892 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 3893 for (NetworkStateTracker tracker : mNetTrackers) { 3894 if (tracker != null) { 3895 LinkQualityInfo li = tracker.getLinkQualityInfo(); 3896 if (li != null) { 3897 result.add(li); 3898 } 3899 } 3900 } 3901 3902 return result.toArray(new LinkQualityInfo[result.size()]); 3903 } 3904 3905 /* Infrastructure for network sampling */ 3906 3907 private void handleNetworkSamplingTimeout() { 3908 3909 log("Sampling interval elapsed, updating statistics .."); 3910 3911 // initialize list of interfaces .. 3912 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 3913 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 3914 for (NetworkStateTracker tracker : mNetTrackers) { 3915 if (tracker != null) { 3916 String ifaceName = tracker.getNetworkInterfaceName(); 3917 if (ifaceName != null) { 3918 mapIfaceToSample.put(ifaceName, null); 3919 } 3920 } 3921 } 3922 3923 // Read samples for all interfaces 3924 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 3925 3926 // process samples for all networks 3927 for (NetworkStateTracker tracker : mNetTrackers) { 3928 if (tracker != null) { 3929 String ifaceName = tracker.getNetworkInterfaceName(); 3930 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 3931 if (ss != null) { 3932 // end the previous sampling cycle 3933 tracker.stopSampling(ss); 3934 // start a new sampling cycle .. 3935 tracker.startSampling(ss); 3936 } 3937 } 3938 } 3939 3940 log("Done."); 3941 3942 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 3943 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 3944 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 3945 3946 if (DBG) log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 3947 3948 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 3949 } 3950 3951 /** 3952 * Sets a network sampling alarm. 3953 */ 3954 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 3955 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 3956 int alarmType; 3957 if (Resources.getSystem().getBoolean( 3958 R.bool.config_networkSamplingWakesDevice)) { 3959 alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP; 3960 } else { 3961 alarmType = AlarmManager.ELAPSED_REALTIME; 3962 } 3963 mAlarmManager.set(alarmType, wakeupTime, intent); 3964 } 3965 3966 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 3967 new HashMap<Messenger, NetworkFactoryInfo>(); 3968 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 3969 new HashMap<NetworkRequest, NetworkRequestInfo>(); 3970 3971 private static class NetworkFactoryInfo { 3972 public final String name; 3973 public final Messenger messenger; 3974 public final AsyncChannel asyncChannel; 3975 3976 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 3977 this.name = name; 3978 this.messenger = messenger; 3979 this.asyncChannel = asyncChannel; 3980 } 3981 } 3982 3983 /** 3984 * Tracks info about the requester. 3985 * Also used to notice when the calling process dies so we can self-expire 3986 */ 3987 private class NetworkRequestInfo implements IBinder.DeathRecipient { 3988 static final boolean REQUEST = true; 3989 static final boolean LISTEN = false; 3990 3991 final NetworkRequest request; 3992 IBinder mBinder; 3993 final int mPid; 3994 final int mUid; 3995 final Messenger messenger; 3996 final boolean isRequest; 3997 3998 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 3999 super(); 4000 messenger = m; 4001 request = r; 4002 mBinder = binder; 4003 mPid = getCallingPid(); 4004 mUid = getCallingUid(); 4005 this.isRequest = isRequest; 4006 4007 try { 4008 mBinder.linkToDeath(this, 0); 4009 } catch (RemoteException e) { 4010 binderDied(); 4011 } 4012 } 4013 4014 void unlinkDeathRecipient() { 4015 mBinder.unlinkToDeath(this, 0); 4016 } 4017 4018 public void binderDied() { 4019 log("ConnectivityService NetworkRequestInfo binderDied(" + 4020 request + ", " + mBinder + ")"); 4021 releaseNetworkRequest(request); 4022 } 4023 4024 public String toString() { 4025 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 4026 mPid + " for " + request; 4027 } 4028 } 4029 4030 @Override 4031 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 4032 Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { 4033 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 4034 == false) { 4035 enforceConnectivityInternalPermission(); 4036 } else { 4037 enforceChangePermission(); 4038 } 4039 4040 networkCapabilities = new NetworkCapabilities(networkCapabilities); 4041 4042 // if UID is restricted, don't allow them to bring up metered APNs 4043 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED) 4044 == false) { 4045 final int uidRules; 4046 synchronized(mRulesLock) { 4047 uidRules = mUidRules.get(Binder.getCallingUid(), RULE_ALLOW_ALL); 4048 } 4049 if ((uidRules & RULE_REJECT_METERED) != 0) { 4050 // we could silently fail or we can filter the available nets to only give 4051 // them those they have access to. Chose the more useful 4052 networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 4053 } 4054 } 4055 4056 if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { 4057 throw new IllegalArgumentException("Bad timeout specified"); 4058 } 4059 NetworkRequest networkRequest = new NetworkRequest(networkCapabilities, legacyType, 4060 nextNetworkRequestId()); 4061 if (DBG) log("requestNetwork for " + networkRequest); 4062 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4063 NetworkRequestInfo.REQUEST); 4064 4065 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 4066 if (timeoutMs > 0) { 4067 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 4068 nri), timeoutMs); 4069 } 4070 return networkRequest; 4071 } 4072 4073 @Override 4074 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 4075 PendingIntent operation) { 4076 // TODO 4077 return null; 4078 } 4079 4080 @Override 4081 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 4082 Messenger messenger, IBinder binder) { 4083 enforceAccessPermission(); 4084 4085 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 4086 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 4087 if (DBG) log("listenForNetwork for " + networkRequest); 4088 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4089 NetworkRequestInfo.LISTEN); 4090 4091 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 4092 return networkRequest; 4093 } 4094 4095 @Override 4096 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 4097 PendingIntent operation) { 4098 } 4099 4100 @Override 4101 public void releaseNetworkRequest(NetworkRequest networkRequest) { 4102 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), 4103 0, networkRequest)); 4104 } 4105 4106 @Override 4107 public void registerNetworkFactory(Messenger messenger, String name) { 4108 enforceConnectivityInternalPermission(); 4109 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 4110 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 4111 } 4112 4113 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 4114 if (VDBG) log("Got NetworkFactory Messenger for " + nfi.name); 4115 mNetworkFactoryInfos.put(nfi.messenger, nfi); 4116 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 4117 } 4118 4119 @Override 4120 public void unregisterNetworkFactory(Messenger messenger) { 4121 enforceConnectivityInternalPermission(); 4122 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 4123 } 4124 4125 private void handleUnregisterNetworkFactory(Messenger messenger) { 4126 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 4127 if (nfi == null) { 4128 if (VDBG) log("Failed to find Messenger in unregisterNetworkFactory"); 4129 return; 4130 } 4131 if (VDBG) log("unregisterNetworkFactory for " + nfi.name); 4132 } 4133 4134 /** 4135 * NetworkAgentInfo supporting a request by requestId. 4136 * These have already been vetted (their Capabilities satisfy the request) 4137 * and the are the highest scored network available. 4138 * the are keyed off the Requests requestId. 4139 */ 4140 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 4141 new SparseArray<NetworkAgentInfo>(); 4142 4143 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 4144 new SparseArray<NetworkAgentInfo>(); 4145 4146 // NetworkAgentInfo keyed off its connecting messenger 4147 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 4148 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 4149 new HashMap<Messenger, NetworkAgentInfo>(); 4150 4151 private final NetworkRequest mDefaultRequest; 4152 4153 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 4154 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 4155 } 4156 4157 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 4158 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 4159 int currentScore, NetworkMisc networkMisc) { 4160 enforceConnectivityInternalPermission(); 4161 4162 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), 4163 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 4164 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler, 4165 networkMisc); 4166 synchronized (this) { 4167 nai.networkMonitor.systemReady = mSystemReady; 4168 } 4169 if (VDBG) log("registerNetworkAgent " + nai); 4170 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 4171 } 4172 4173 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 4174 if (VDBG) log("Got NetworkAgent Messenger"); 4175 mNetworkAgentInfos.put(na.messenger, na); 4176 assignNextNetId(na); 4177 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 4178 NetworkInfo networkInfo = na.networkInfo; 4179 na.networkInfo = null; 4180 updateNetworkInfo(na, networkInfo); 4181 } 4182 4183 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 4184 LinkProperties newLp = networkAgent.linkProperties; 4185 int netId = networkAgent.network.netId; 4186 4187 updateInterfaces(newLp, oldLp, netId); 4188 updateMtu(newLp, oldLp); 4189 updateTcpBufferSizes(networkAgent); 4190 // TODO - figure out what to do for clat 4191// for (LinkProperties lp : newLp.getStackedLinks()) { 4192// updateMtu(lp, null); 4193// } 4194 final boolean flushDns = updateRoutes(newLp, oldLp, netId); 4195 updateDnses(newLp, oldLp, netId, flushDns); 4196 updateClat(newLp, oldLp, networkAgent); 4197 } 4198 4199 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { 4200 // Update 464xlat state. 4201 if (mClat.requiresClat(na)) { 4202 4203 // If the connection was previously using clat, but is not using it now, stop the clat 4204 // daemon. Normally, this happens automatically when the connection disconnects, but if 4205 // the disconnect is not reported, or if the connection's LinkProperties changed for 4206 // some other reason (e.g., handoff changes the IP addresses on the link), it would 4207 // still be running. If it's not running, then stopping it is a no-op. 4208 if (Nat464Xlat.isRunningClat(oldLp) && !Nat464Xlat.isRunningClat(newLp)) { 4209 mClat.stopClat(); 4210 } 4211 // If the link requires clat to be running, then start the daemon now. 4212 if (na.networkInfo.isConnected()) { 4213 mClat.startClat(na); 4214 } else { 4215 mClat.stopClat(); 4216 } 4217 } 4218 } 4219 4220 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 4221 CompareResult<String> interfaceDiff = new CompareResult<String>(); 4222 if (oldLp != null) { 4223 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 4224 } else if (newLp != null) { 4225 interfaceDiff.added = newLp.getAllInterfaceNames(); 4226 } 4227 for (String iface : interfaceDiff.added) { 4228 try { 4229 mNetd.addInterfaceToNetwork(iface, netId); 4230 } catch (Exception e) { 4231 loge("Exception adding interface: " + e); 4232 } 4233 } 4234 for (String iface : interfaceDiff.removed) { 4235 try { 4236 mNetd.removeInterfaceFromNetwork(iface, netId); 4237 } catch (Exception e) { 4238 loge("Exception removing interface: " + e); 4239 } 4240 } 4241 } 4242 4243 /** 4244 * Have netd update routes from oldLp to newLp. 4245 * @return true if routes changed between oldLp and newLp 4246 */ 4247 private boolean updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 4248 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 4249 if (oldLp != null) { 4250 routeDiff = oldLp.compareAllRoutes(newLp); 4251 } else if (newLp != null) { 4252 routeDiff.added = newLp.getAllRoutes(); 4253 } 4254 4255 // add routes before removing old in case it helps with continuous connectivity 4256 4257 // do this twice, adding non-nexthop routes first, then routes they are dependent on 4258 for (RouteInfo route : routeDiff.added) { 4259 if (route.hasGateway()) continue; 4260 try { 4261 mNetd.addRoute(netId, route); 4262 } catch (Exception e) { 4263 loge("Exception in addRoute for non-gateway: " + e); 4264 } 4265 } 4266 for (RouteInfo route : routeDiff.added) { 4267 if (route.hasGateway() == false) continue; 4268 try { 4269 mNetd.addRoute(netId, route); 4270 } catch (Exception e) { 4271 loge("Exception in addRoute for gateway: " + e); 4272 } 4273 } 4274 4275 for (RouteInfo route : routeDiff.removed) { 4276 try { 4277 mNetd.removeRoute(netId, route); 4278 } catch (Exception e) { 4279 loge("Exception in removeRoute: " + e); 4280 } 4281 } 4282 return !routeDiff.added.isEmpty() || !routeDiff.removed.isEmpty(); 4283 } 4284 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId, boolean flush) { 4285 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 4286 Collection<InetAddress> dnses = newLp.getDnsServers(); 4287 if (dnses.size() == 0 && mDefaultDns != null) { 4288 dnses = new ArrayList(); 4289 dnses.add(mDefaultDns); 4290 if (DBG) { 4291 loge("no dns provided for netId " + netId + ", so using defaults"); 4292 } 4293 } 4294 try { 4295 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 4296 newLp.getDomains()); 4297 } catch (Exception e) { 4298 loge("Exception in setDnsServersForNetwork: " + e); 4299 } 4300 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 4301 if (defaultNai != null && defaultNai.network.netId == netId) { 4302 setDefaultDnsSystemProperties(dnses); 4303 } 4304 flushVmDnsCache(); 4305 } else if (flush) { 4306 try { 4307 mNetd.flushNetworkDnsCache(netId); 4308 } catch (Exception e) { 4309 loge("Exception in flushNetworkDnsCache: " + e); 4310 } 4311 flushVmDnsCache(); 4312 } 4313 } 4314 4315 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 4316 int last = 0; 4317 for (InetAddress dns : dnses) { 4318 ++last; 4319 String key = "net.dns" + last; 4320 String value = dns.getHostAddress(); 4321 SystemProperties.set(key, value); 4322 } 4323 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 4324 String key = "net.dns" + i; 4325 SystemProperties.set(key, ""); 4326 } 4327 mNumDnsEntries = last; 4328 } 4329 4330 4331 private void updateCapabilities(NetworkAgentInfo networkAgent, 4332 NetworkCapabilities networkCapabilities) { 4333 // TODO - what else here? Verify still satisfies everybody? 4334 // Check if satisfies somebody new? call callbacks? 4335 synchronized (networkAgent) { 4336 networkAgent.networkCapabilities = networkCapabilities; 4337 } 4338 } 4339 4340 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 4341 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 4342 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 4343 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 4344 networkRequest); 4345 } 4346 } 4347 4348 private void callCallbackForRequest(NetworkRequestInfo nri, 4349 NetworkAgentInfo networkAgent, int notificationType) { 4350 if (nri.messenger == null) return; // Default request has no msgr 4351 Object o; 4352 int a1 = 0; 4353 int a2 = 0; 4354 switch (notificationType) { 4355 case ConnectivityManager.CALLBACK_LOSING: 4356 a1 = 30 * 1000; // TODO - read this from NetworkMonitor 4357 // fall through 4358 case ConnectivityManager.CALLBACK_PRECHECK: 4359 case ConnectivityManager.CALLBACK_AVAILABLE: 4360 case ConnectivityManager.CALLBACK_LOST: 4361 case ConnectivityManager.CALLBACK_CAP_CHANGED: 4362 case ConnectivityManager.CALLBACK_IP_CHANGED: { 4363 o = new NetworkRequest(nri.request); 4364 a2 = networkAgent.network.netId; 4365 break; 4366 } 4367 case ConnectivityManager.CALLBACK_UNAVAIL: 4368 case ConnectivityManager.CALLBACK_RELEASED: { 4369 o = new NetworkRequest(nri.request); 4370 break; 4371 } 4372 default: { 4373 loge("Unknown notificationType " + notificationType); 4374 return; 4375 } 4376 } 4377 Message msg = Message.obtain(); 4378 msg.arg1 = a1; 4379 msg.arg2 = a2; 4380 msg.obj = o; 4381 msg.what = notificationType; 4382 try { 4383 if (VDBG) log("sending notification " + notificationType + " for " + nri.request); 4384 nri.messenger.send(msg); 4385 } catch (RemoteException e) { 4386 // may occur naturally in the race of binder death. 4387 loge("RemoteException caught trying to send a callback msg for " + nri.request); 4388 } 4389 } 4390 4391 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 4392 if (oldNetwork == null) { 4393 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 4394 return; 4395 } 4396 if (DBG) log("handleLingerComplete for " + oldNetwork.name()); 4397 if (DBG) { 4398 if (oldNetwork.networkRequests.size() != 0) { 4399 loge("Dead network still had " + oldNetwork.networkRequests.size() + " requests"); 4400 } 4401 } 4402 oldNetwork.asyncChannel.disconnect(); 4403 } 4404 4405 private void makeDefault(NetworkAgentInfo newNetwork) { 4406 if (VDBG) log("Switching to new default network: " + newNetwork); 4407 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4408 setupDataActivityTracking(newNetwork); 4409 try { 4410 mNetd.setDefaultNetId(newNetwork.network.netId); 4411 } catch (Exception e) { 4412 loge("Exception setting default network :" + e); 4413 } 4414 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 4415 updateTcpBufferSizes(newNetwork); 4416 } 4417 4418 private void handleConnectionValidated(NetworkAgentInfo newNetwork) { 4419 if (newNetwork == null) { 4420 loge("Unknown NetworkAgentInfo in handleConnectionValidated"); 4421 return; 4422 } 4423 boolean keep = newNetwork.isVPN(); 4424 boolean isNewDefault = false; 4425 if (DBG) log("handleConnectionValidated for "+newNetwork.name()); 4426 // check if any NetworkRequest wants this NetworkAgent 4427 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 4428 if (VDBG) log(" new Network has: " + newNetwork.networkCapabilities); 4429 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 4430 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 4431 if (newNetwork == currentNetwork) { 4432 if (VDBG) log("Network " + newNetwork.name() + " was already satisfying" + 4433 " request " + nri.request.requestId + ". No change."); 4434 keep = true; 4435 continue; 4436 } 4437 4438 // check if it satisfies the NetworkCapabilities 4439 if (VDBG) log(" checking if request is satisfied: " + nri.request); 4440 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 4441 newNetwork.networkCapabilities)) { 4442 if (!nri.isRequest) { 4443 newNetwork.addRequest(nri.request); 4444 continue; 4445 } 4446 // next check if it's better than any current network we're using for 4447 // this request 4448 if (VDBG) { 4449 log("currentScore = " + 4450 (currentNetwork != null ? currentNetwork.currentScore : 0) + 4451 ", newScore = " + newNetwork.currentScore); 4452 } 4453 if (currentNetwork == null || 4454 currentNetwork.currentScore < newNetwork.currentScore) { 4455 if (currentNetwork != null) { 4456 if (VDBG) log(" accepting network in place of " + currentNetwork.name()); 4457 currentNetwork.networkRequests.remove(nri.request.requestId); 4458 currentNetwork.networkLingered.add(nri.request); 4459 affectedNetworks.add(currentNetwork); 4460 } else { 4461 if (VDBG) log(" accepting network in place of null"); 4462 } 4463 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 4464 newNetwork.addRequest(nri.request); 4465 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 4466 mLegacyTypeTracker.add(nri.request.legacyType, newNetwork); 4467 } 4468 keep = true; 4469 // TODO - this could get expensive if we have alot of requests for this 4470 // network. Think about if there is a way to reduce this. Push 4471 // netid->request mapping to each factory? 4472 sendUpdatedScoreToFactories(nri.request, newNetwork.currentScore); 4473 if (mDefaultRequest.requestId == nri.request.requestId) { 4474 isNewDefault = true; 4475 updateActiveDefaultNetwork(newNetwork); 4476 if (newNetwork.linkProperties != null) { 4477 updateTcpBufferSizes(newNetwork); 4478 setDefaultDnsSystemProperties( 4479 newNetwork.linkProperties.getDnsServers()); 4480 } else { 4481 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 4482 } 4483 // Maintain the illusion: since the legacy API only 4484 // understands one network at a time, we must pretend 4485 // that the current default network disconnected before 4486 // the new one connected. 4487 if (currentNetwork != null) { 4488 mLegacyTypeTracker.remove(currentNetwork.networkInfo.getType(), 4489 currentNetwork); 4490 } 4491 mDefaultInetConditionPublished = 100; 4492 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 4493 } 4494 } 4495 } 4496 } 4497 for (NetworkAgentInfo nai : affectedNetworks) { 4498 boolean teardown = !nai.isVPN(); 4499 for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { 4500 NetworkRequest nr = nai.networkRequests.valueAt(i); 4501 try { 4502 if (mNetworkRequests.get(nr).isRequest) { 4503 teardown = false; 4504 } 4505 } catch (Exception e) { 4506 loge("Request " + nr + " not found in mNetworkRequests."); 4507 loge(" it came from request list of " + nai.name()); 4508 } 4509 } 4510 if (teardown) { 4511 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 4512 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 4513 } else { 4514 // not going to linger, so kill the list of linger networks.. only 4515 // notify them of linger if it happens as the result of gaining another, 4516 // but if they transition and old network stays up, don't tell them of linger 4517 // or very delayed loss 4518 nai.networkLingered.clear(); 4519 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 4520 } 4521 } 4522 if (keep) { 4523 if (isNewDefault) { 4524 makeDefault(newNetwork); 4525 synchronized (ConnectivityService.this) { 4526 // have a new default network, release the transition wakelock in 4527 // a second if it's held. The second pause is to allow apps 4528 // to reconnect over the new network 4529 if (mNetTransitionWakeLock.isHeld()) { 4530 mHandler.sendMessageDelayed(mHandler.obtainMessage( 4531 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 4532 mNetTransitionWakeLockSerialNumber, 0), 4533 1000); 4534 } 4535 } 4536 } 4537 4538 // Notify battery stats service about this network, both the normal 4539 // interface and any stacked links. 4540 try { 4541 final IBatteryStats bs = BatteryStatsService.getService(); 4542 final int type = newNetwork.networkInfo.getType(); 4543 4544 final String baseIface = newNetwork.linkProperties.getInterfaceName(); 4545 bs.noteNetworkInterfaceType(baseIface, type); 4546 for (LinkProperties stacked : newNetwork.linkProperties.getStackedLinks()) { 4547 final String stackedIface = stacked.getInterfaceName(); 4548 bs.noteNetworkInterfaceType(stackedIface, type); 4549 NetworkStatsFactory.noteStackedIface(stackedIface, baseIface); 4550 } 4551 } catch (RemoteException ignored) { 4552 } 4553 4554 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 4555 } else { 4556 if (DBG && newNetwork.networkRequests.size() != 0) { 4557 loge("tearing down network with live requests:"); 4558 for (int i=0; i < newNetwork.networkRequests.size(); i++) { 4559 loge(" " + newNetwork.networkRequests.valueAt(i)); 4560 } 4561 } 4562 if (VDBG) log("Validated network turns out to be unwanted. Tear it down."); 4563 newNetwork.asyncChannel.disconnect(); 4564 } 4565 } 4566 4567 4568 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 4569 NetworkInfo.State state = newInfo.getState(); 4570 NetworkInfo oldInfo = null; 4571 synchronized (networkAgent) { 4572 oldInfo = networkAgent.networkInfo; 4573 networkAgent.networkInfo = newInfo; 4574 } 4575 if (networkAgent.isVPN() && mLockdownTracker != null) { 4576 mLockdownTracker.onVpnStateChanged(newInfo); 4577 } 4578 4579 if (oldInfo != null && oldInfo.getState() == state) { 4580 if (VDBG) log("ignoring duplicate network state non-change"); 4581 return; 4582 } 4583 if (DBG) { 4584 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 4585 (oldInfo == null ? "null" : oldInfo.getState()) + 4586 " to " + state); 4587 } 4588 4589 if (state == NetworkInfo.State.CONNECTED && !networkAgent.created) { 4590 try { 4591 // This should never fail. Specifying an already in use NetID will cause failure. 4592 if (networkAgent.isVPN()) { 4593 mNetd.createVirtualNetwork(networkAgent.network.netId, 4594 !networkAgent.linkProperties.getDnsServers().isEmpty(), 4595 (networkAgent.networkMisc == null || 4596 !networkAgent.networkMisc.allowBypass)); 4597 } else { 4598 mNetd.createPhysicalNetwork(networkAgent.network.netId); 4599 } 4600 } catch (Exception e) { 4601 loge("Error creating network " + networkAgent.network.netId + ": " 4602 + e.getMessage()); 4603 return; 4604 } 4605 networkAgent.created = true; 4606 updateLinkProperties(networkAgent, null); 4607 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 4608 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 4609 if (networkAgent.isVPN()) { 4610 // Temporarily disable the default proxy (not global). 4611 synchronized (mProxyLock) { 4612 if (!mDefaultProxyDisabled) { 4613 mDefaultProxyDisabled = true; 4614 if (mGlobalProxy == null && mDefaultProxy != null) { 4615 sendProxyBroadcast(null); 4616 } 4617 } 4618 } 4619 // TODO: support proxy per network. 4620 } 4621 // Make default network if we have no default. Any network is better than no network. 4622 if (mNetworkForRequestId.get(mDefaultRequest.requestId) == null && 4623 networkAgent.isVPN() == false && 4624 mDefaultRequest.networkCapabilities.satisfiedByNetworkCapabilities( 4625 networkAgent.networkCapabilities)) { 4626 makeDefault(networkAgent); 4627 } 4628 } else if (state == NetworkInfo.State.DISCONNECTED || 4629 state == NetworkInfo.State.SUSPENDED) { 4630 networkAgent.asyncChannel.disconnect(); 4631 if (networkAgent.isVPN()) { 4632 synchronized (mProxyLock) { 4633 if (mDefaultProxyDisabled) { 4634 mDefaultProxyDisabled = false; 4635 if (mGlobalProxy == null && mDefaultProxy != null) { 4636 sendProxyBroadcast(mDefaultProxy); 4637 } 4638 } 4639 } 4640 } 4641 } 4642 } 4643 4644 private void updateNetworkScore(NetworkAgentInfo nai, int score) { 4645 if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); 4646 4647 nai.currentScore = score; 4648 4649 // TODO - This will not do the right thing if this network is lowering 4650 // its score and has requests that can be served by other 4651 // currently-active networks, or if the network is increasing its 4652 // score and other networks have requests that can be better served 4653 // by this network. 4654 // 4655 // Really we want to see if any of our requests migrate to other 4656 // active/lingered networks and if any other requests migrate to us (depending 4657 // on increasing/decreasing currentScore. That's a bit of work and probably our 4658 // score checking/network allocation code needs to be modularized so we can understand 4659 // (see handleConnectionValided for an example). 4660 // 4661 // As a first order approx, lets just advertise the new score to factories. If 4662 // somebody can beat it they will nominate a network and our normal net replacement 4663 // code will fire. 4664 for (int i = 0; i < nai.networkRequests.size(); i++) { 4665 NetworkRequest nr = nai.networkRequests.valueAt(i); 4666 sendUpdatedScoreToFactories(nr, score); 4667 } 4668 } 4669 4670 // notify only this one new request of the current state 4671 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 4672 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 4673 // TODO - read state from monitor to decide what to send. 4674// if (nai.networkMonitor.isLingering()) { 4675// notifyType = NetworkCallbacks.LOSING; 4676// } else if (nai.networkMonitor.isEvaluating()) { 4677// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 4678// } 4679 callCallbackForRequest(nri, nai, notifyType); 4680 } 4681 4682 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 4683 // The NetworkInfo we actually send out has no bearing on the real 4684 // state of affairs. For example, if the default connection is mobile, 4685 // and a request for HIPRI has just gone away, we need to pretend that 4686 // HIPRI has just disconnected. So we need to set the type to HIPRI and 4687 // the state to DISCONNECTED, even though the network is of type MOBILE 4688 // and is still connected. 4689 NetworkInfo info = new NetworkInfo(nai.networkInfo); 4690 info.setType(type); 4691 if (connected) { 4692 info.setDetailedState(DetailedState.CONNECTED, null, info.getExtraInfo()); 4693 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 4694 } else { 4695 info.setDetailedState(DetailedState.DISCONNECTED, null, info.getExtraInfo()); 4696 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 4697 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 4698 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 4699 if (info.isFailover()) { 4700 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 4701 nai.networkInfo.setFailover(false); 4702 } 4703 if (info.getReason() != null) { 4704 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 4705 } 4706 if (info.getExtraInfo() != null) { 4707 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 4708 } 4709 NetworkAgentInfo newDefaultAgent = null; 4710 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 4711 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 4712 if (newDefaultAgent != null) { 4713 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 4714 newDefaultAgent.networkInfo); 4715 } else { 4716 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 4717 } 4718 } 4719 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 4720 mDefaultInetConditionPublished); 4721 final Intent immediateIntent = new Intent(intent); 4722 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 4723 sendStickyBroadcast(immediateIntent); 4724 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 4725 if (newDefaultAgent != null) { 4726 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 4727 getConnectivityChangeDelay()); 4728 } 4729 } 4730 } 4731 4732 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 4733 if (VDBG) log("notifyType " + notifyType + " for " + networkAgent.name()); 4734 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 4735 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 4736 NetworkRequestInfo nri = mNetworkRequests.get(nr); 4737 if (VDBG) log(" sending notification for " + nr); 4738 callCallbackForRequest(nri, networkAgent, notifyType); 4739 } 4740 } 4741 4742 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 4743 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4744 if (nai != null) { 4745 synchronized (nai) { 4746 return new LinkProperties(nai.linkProperties); 4747 } 4748 } 4749 return new LinkProperties(); 4750 } 4751 4752 private NetworkInfo getNetworkInfoForType(int networkType) { 4753 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 4754 return null; 4755 4756 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4757 if (nai != null) { 4758 NetworkInfo result = new NetworkInfo(nai.networkInfo); 4759 result.setType(networkType); 4760 return result; 4761 } else { 4762 NetworkInfo result = new NetworkInfo(networkType); 4763 result.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, null, null); 4764 return result; 4765 } 4766 } 4767 4768 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 4769 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4770 if (nai != null) { 4771 synchronized (nai) { 4772 return new NetworkCapabilities(nai.networkCapabilities); 4773 } 4774 } 4775 return new NetworkCapabilities(); 4776 } 4777 4778 @Override 4779 public boolean addVpnAddress(String address, int prefixLength) { 4780 throwIfLockdownEnabled(); 4781 int user = UserHandle.getUserId(Binder.getCallingUid()); 4782 synchronized (mVpns) { 4783 return mVpns.get(user).addAddress(address, prefixLength); 4784 } 4785 } 4786 4787 @Override 4788 public boolean removeVpnAddress(String address, int prefixLength) { 4789 throwIfLockdownEnabled(); 4790 int user = UserHandle.getUserId(Binder.getCallingUid()); 4791 synchronized (mVpns) { 4792 return mVpns.get(user).removeAddress(address, prefixLength); 4793 } 4794 } 4795} 4796