ConnectivityService.java revision 60061a6ebf4ef758c4a47d210de0e5be2484be5b
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 // must be stateless - things change under us. 1747 private class NetworkStateTrackerHandler extends Handler { 1748 public NetworkStateTrackerHandler(Looper looper) { 1749 super(looper); 1750 } 1751 1752 @Override 1753 public void handleMessage(Message msg) { 1754 NetworkInfo info; 1755 switch (msg.what) { 1756 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 1757 handleAsyncChannelHalfConnect(msg); 1758 break; 1759 } 1760 case AsyncChannel.CMD_CHANNEL_DISCONNECT: { 1761 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1762 if (nai != null) nai.asyncChannel.disconnect(); 1763 break; 1764 } 1765 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 1766 handleAsyncChannelDisconnected(msg); 1767 break; 1768 } 1769 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { 1770 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1771 if (nai == null) { 1772 loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); 1773 } else { 1774 updateCapabilities(nai, (NetworkCapabilities)msg.obj); 1775 } 1776 break; 1777 } 1778 case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { 1779 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1780 if (nai == null) { 1781 loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); 1782 } else { 1783 if (VDBG) { 1784 log("Update of Linkproperties for " + nai.name() + 1785 "; created=" + nai.created); 1786 } 1787 LinkProperties oldLp = nai.linkProperties; 1788 synchronized (nai) { 1789 nai.linkProperties = (LinkProperties)msg.obj; 1790 } 1791 if (nai.created) updateLinkProperties(nai, oldLp); 1792 } 1793 break; 1794 } 1795 case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { 1796 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1797 if (nai == null) { 1798 loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); 1799 break; 1800 } 1801 info = (NetworkInfo) msg.obj; 1802 updateNetworkInfo(nai, info); 1803 break; 1804 } 1805 case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { 1806 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1807 if (nai == null) { 1808 loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); 1809 break; 1810 } 1811 Integer score = (Integer) msg.obj; 1812 if (score != null) updateNetworkScore(nai, score.intValue()); 1813 break; 1814 } 1815 case NetworkAgent.EVENT_UID_RANGES_ADDED: { 1816 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1817 if (nai == null) { 1818 loge("EVENT_UID_RANGES_ADDED from unknown NetworkAgent"); 1819 break; 1820 } 1821 try { 1822 mNetd.addVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1823 } catch (Exception e) { 1824 // Never crash! 1825 loge("Exception in addVpnUidRanges: " + e); 1826 } 1827 break; 1828 } 1829 case NetworkAgent.EVENT_UID_RANGES_REMOVED: { 1830 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1831 if (nai == null) { 1832 loge("EVENT_UID_RANGES_REMOVED from unknown NetworkAgent"); 1833 break; 1834 } 1835 try { 1836 mNetd.removeVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1837 } catch (Exception e) { 1838 // Never crash! 1839 loge("Exception in removeVpnUidRanges: " + e); 1840 } 1841 break; 1842 } 1843 case NetworkAgent.EVENT_BLOCK_ADDRESS_FAMILY: { 1844 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1845 if (nai == null) { 1846 loge("EVENT_BLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1847 break; 1848 } 1849 try { 1850 mNetd.blockAddressFamily((Integer) msg.obj, nai.network.netId, 1851 nai.linkProperties.getInterfaceName()); 1852 } catch (Exception e) { 1853 // Never crash! 1854 loge("Exception in blockAddressFamily: " + e); 1855 } 1856 break; 1857 } 1858 case NetworkAgent.EVENT_UNBLOCK_ADDRESS_FAMILY: { 1859 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1860 if (nai == null) { 1861 loge("EVENT_UNBLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1862 break; 1863 } 1864 try { 1865 mNetd.unblockAddressFamily((Integer) msg.obj, nai.network.netId, 1866 nai.linkProperties.getInterfaceName()); 1867 } catch (Exception e) { 1868 // Never crash! 1869 loge("Exception in blockAddressFamily: " + e); 1870 } 1871 break; 1872 } 1873 case NetworkMonitor.EVENT_NETWORK_VALIDATED: { 1874 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1875 handleConnectionValidated(nai); 1876 break; 1877 } 1878 case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { 1879 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1880 handleLingerComplete(nai); 1881 break; 1882 } 1883 case NetworkMonitor.EVENT_PROVISIONING_NOTIFICATION: { 1884 if (msg.arg1 == 0) { 1885 setProvNotificationVisibleIntent(false, msg.arg2, 0, null, null); 1886 } else { 1887 NetworkAgentInfo nai = mNetworkForNetId.get(msg.arg2); 1888 if (nai == null) { 1889 loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); 1890 break; 1891 } 1892 setProvNotificationVisibleIntent(true, msg.arg2, nai.networkInfo.getType(), 1893 nai.networkInfo.getExtraInfo(), (PendingIntent)msg.obj); 1894 } 1895 break; 1896 } 1897 case NetworkStateTracker.EVENT_STATE_CHANGED: { 1898 info = (NetworkInfo) msg.obj; 1899 NetworkInfo.State state = info.getState(); 1900 1901 if (VDBG || (state == NetworkInfo.State.CONNECTED) || 1902 (state == NetworkInfo.State.DISCONNECTED) || 1903 (state == NetworkInfo.State.SUSPENDED)) { 1904 log("ConnectivityChange for " + 1905 info.getTypeName() + ": " + 1906 state + "/" + info.getDetailedState()); 1907 } 1908 1909 // Since mobile has the notion of a network/apn that can be used for 1910 // provisioning we need to check every time we're connected as 1911 // CaptiveProtalTracker won't detected it because DCT doesn't report it 1912 // as connected as ACTION_ANY_DATA_CONNECTION_STATE_CHANGED instead its 1913 // reported as ACTION_DATA_CONNECTION_CONNECTED_TO_PROVISIONING_APN. Which 1914 // is received by MDST and sent here as EVENT_STATE_CHANGED. 1915 if (ConnectivityManager.isNetworkTypeMobile(info.getType()) 1916 && (0 != Settings.Global.getInt(mContext.getContentResolver(), 1917 Settings.Global.DEVICE_PROVISIONED, 0)) 1918 && (((state == NetworkInfo.State.CONNECTED) 1919 && (info.getType() == ConnectivityManager.TYPE_MOBILE)) 1920 || info.isConnectedToProvisioningNetwork())) { 1921 log("ConnectivityChange checkMobileProvisioning for" 1922 + " TYPE_MOBILE or ProvisioningNetwork"); 1923 checkMobileProvisioning(CheckMp.MAX_TIMEOUT_MS); 1924 } 1925 1926 EventLogTags.writeConnectivityStateChanged( 1927 info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); 1928 1929 if (info.isConnectedToProvisioningNetwork()) { 1930 /** 1931 * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING 1932 * for now its an in between network, its a network that 1933 * is actually a default network but we don't want it to be 1934 * announced as such to keep background applications from 1935 * trying to use it. It turns out that some still try so we 1936 * take the additional step of clearing any default routes 1937 * to the link that may have incorrectly setup by the lower 1938 * levels. 1939 */ 1940 LinkProperties lp = getLinkPropertiesForTypeInternal(info.getType()); 1941 if (DBG) { 1942 log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); 1943 } 1944 1945 // Clear any default routes setup by the radio so 1946 // any activity by applications trying to use this 1947 // connection will fail until the provisioning network 1948 // is enabled. 1949 /* 1950 for (RouteInfo r : lp.getRoutes()) { 1951 removeRoute(lp, r, TO_DEFAULT_TABLE, 1952 mNetTrackers[info.getType()].getNetwork().netId); 1953 } 1954 */ 1955 } else if (state == NetworkInfo.State.DISCONNECTED) { 1956 } else if (state == NetworkInfo.State.SUSPENDED) { 1957 } else if (state == NetworkInfo.State.CONNECTED) { 1958 // handleConnect(info); 1959 } 1960 if (mLockdownTracker != null) { 1961 mLockdownTracker.onNetworkInfoChanged(info); 1962 } 1963 break; 1964 } 1965 case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { 1966 info = (NetworkInfo) msg.obj; 1967 // TODO: Temporary allowing network configuration 1968 // change not resetting sockets. 1969 // @see bug/4455071 1970 /* 1971 handleConnectivityChange(info.getType(), mCurrentLinkProperties[info.getType()], 1972 false); 1973 */ 1974 break; 1975 } 1976 } 1977 } 1978 } 1979 1980 private void handleAsyncChannelHalfConnect(Message msg) { 1981 AsyncChannel ac = (AsyncChannel) msg.obj; 1982 if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { 1983 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 1984 if (VDBG) log("NetworkFactory connected"); 1985 // A network factory has connected. Send it all current NetworkRequests. 1986 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 1987 if (nri.isRequest == false) continue; 1988 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 1989 ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, 1990 (nai != null ? nai.currentScore : 0), 0, nri.request); 1991 } 1992 } else { 1993 loge("Error connecting NetworkFactory"); 1994 mNetworkFactoryInfos.remove(msg.obj); 1995 } 1996 } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { 1997 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 1998 if (VDBG) log("NetworkAgent connected"); 1999 // A network agent has requested a connection. Establish the connection. 2000 mNetworkAgentInfos.get(msg.replyTo).asyncChannel. 2001 sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 2002 } else { 2003 loge("Error connecting NetworkAgent"); 2004 NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); 2005 if (nai != null) { 2006 synchronized (mNetworkForNetId) { 2007 mNetworkForNetId.remove(nai.network.netId); 2008 } 2009 // Just in case. 2010 mLegacyTypeTracker.remove(nai); 2011 } 2012 } 2013 } 2014 } 2015 private void handleAsyncChannelDisconnected(Message msg) { 2016 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 2017 if (nai != null) { 2018 if (DBG) { 2019 log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); 2020 } 2021 // A network agent has disconnected. 2022 if (nai.created) { 2023 // Tell netd to clean up the configuration for this network 2024 // (routing rules, DNS, etc). 2025 try { 2026 mNetd.removeNetwork(nai.network.netId); 2027 } catch (Exception e) { 2028 loge("Exception removing network: " + e); 2029 } 2030 } 2031 // TODO - if we move the logic to the network agent (have them disconnect 2032 // because they lost all their requests or because their score isn't good) 2033 // then they would disconnect organically, report their new state and then 2034 // disconnect the channel. 2035 if (nai.networkInfo.isConnected()) { 2036 nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, 2037 null, null); 2038 } 2039 if (isDefaultNetwork(nai)) { 2040 mDefaultInetConditionPublished = 0; 2041 } 2042 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); 2043 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); 2044 mNetworkAgentInfos.remove(msg.replyTo); 2045 updateClat(null, nai.linkProperties, nai); 2046 mLegacyTypeTracker.remove(nai); 2047 synchronized (mNetworkForNetId) { 2048 mNetworkForNetId.remove(nai.network.netId); 2049 } 2050 // Since we've lost the network, go through all the requests that 2051 // it was satisfying and see if any other factory can satisfy them. 2052 final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); 2053 for (int i = 0; i < nai.networkRequests.size(); i++) { 2054 NetworkRequest request = nai.networkRequests.valueAt(i); 2055 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); 2056 if (VDBG) { 2057 log(" checking request " + request + ", currentNetwork = " + 2058 (currentNetwork != null ? currentNetwork.name() : "null")); 2059 } 2060 if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { 2061 mNetworkForRequestId.remove(request.requestId); 2062 sendUpdatedScoreToFactories(request, 0); 2063 NetworkAgentInfo alternative = null; 2064 for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { 2065 NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); 2066 if (existing.networkInfo.isConnected() && 2067 request.networkCapabilities.satisfiedByNetworkCapabilities( 2068 existing.networkCapabilities) && 2069 (alternative == null || 2070 alternative.currentScore < existing.currentScore)) { 2071 alternative = existing; 2072 } 2073 } 2074 if (alternative != null && !toActivate.contains(alternative)) { 2075 toActivate.add(alternative); 2076 } 2077 } 2078 } 2079 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 2080 removeDataActivityTracking(nai); 2081 mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; 2082 requestNetworkTransitionWakelock(nai.name()); 2083 } 2084 for (NetworkAgentInfo networkToActivate : toActivate) { 2085 networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2086 } 2087 } 2088 } 2089 2090 private void handleRegisterNetworkRequest(Message msg) { 2091 final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); 2092 final NetworkCapabilities newCap = nri.request.networkCapabilities; 2093 int score = 0; 2094 2095 // Check for the best currently alive network that satisfies this request 2096 NetworkAgentInfo bestNetwork = null; 2097 for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { 2098 if (VDBG) log("handleRegisterNetworkRequest checking " + network.name()); 2099 if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { 2100 if (VDBG) log("apparently satisfied. currentScore=" + network.currentScore); 2101 if ((bestNetwork == null) || bestNetwork.currentScore < network.currentScore) { 2102 bestNetwork = network; 2103 } 2104 } 2105 } 2106 if (bestNetwork != null) { 2107 if (VDBG) log("using " + bestNetwork.name()); 2108 if (nri.isRequest && bestNetwork.networkInfo.isConnected()) { 2109 // Cancel any lingering so the linger timeout doesn't teardown this network 2110 // even though we have a request for it. 2111 bestNetwork.networkLingered.clear(); 2112 bestNetwork.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2113 } 2114 bestNetwork.addRequest(nri.request); 2115 mNetworkForRequestId.put(nri.request.requestId, bestNetwork); 2116 notifyNetworkCallback(bestNetwork, nri); 2117 score = bestNetwork.currentScore; 2118 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 2119 mLegacyTypeTracker.add(nri.request.legacyType, bestNetwork); 2120 } 2121 } 2122 mNetworkRequests.put(nri.request, nri); 2123 if (nri.isRequest) { 2124 if (DBG) log("sending new NetworkRequest to factories"); 2125 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2126 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 2127 0, nri.request); 2128 } 2129 } 2130 } 2131 2132 private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) { 2133 NetworkRequestInfo nri = mNetworkRequests.get(request); 2134 if (nri != null) { 2135 if (nri.mUid != callingUid) { 2136 if (DBG) log("Attempt to release unowned NetworkRequest " + request); 2137 return; 2138 } 2139 if (DBG) log("releasing NetworkRequest " + request); 2140 nri.unlinkDeathRecipient(); 2141 mNetworkRequests.remove(request); 2142 // tell the network currently servicing this that it's no longer interested 2143 NetworkAgentInfo affectedNetwork = mNetworkForRequestId.get(nri.request.requestId); 2144 if (affectedNetwork != null) { 2145 mNetworkForRequestId.remove(nri.request.requestId); 2146 affectedNetwork.networkRequests.remove(nri.request.requestId); 2147 if (VDBG) { 2148 log(" Removing from current network " + affectedNetwork.name() + ", leaving " + 2149 affectedNetwork.networkRequests.size() + " requests."); 2150 } 2151 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 2152 mLegacyTypeTracker.remove(nri.request.legacyType, affectedNetwork); 2153 } 2154 } 2155 2156 if (nri.isRequest) { 2157 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2158 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 2159 nri.request); 2160 } 2161 2162 if (affectedNetwork != null) { 2163 // check if this network still has live requests - otherwise, tear down 2164 // TODO - probably push this to the NF/NA 2165 boolean keep = affectedNetwork.isVPN(); 2166 for (int i = 0; i < affectedNetwork.networkRequests.size() && !keep; i++) { 2167 NetworkRequest r = affectedNetwork.networkRequests.valueAt(i); 2168 if (mNetworkRequests.get(r).isRequest) { 2169 keep = true; 2170 } 2171 } 2172 if (keep == false) { 2173 if (DBG) log("no live requests for " + affectedNetwork.name() + 2174 "; disconnecting"); 2175 affectedNetwork.asyncChannel.disconnect(); 2176 } 2177 } 2178 } 2179 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 2180 } 2181 } 2182 2183 private class InternalHandler extends Handler { 2184 public InternalHandler(Looper looper) { 2185 super(looper); 2186 } 2187 2188 @Override 2189 public void handleMessage(Message msg) { 2190 NetworkInfo info; 2191 switch (msg.what) { 2192 case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: 2193 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 2194 String causedBy = null; 2195 synchronized (ConnectivityService.this) { 2196 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 2197 mNetTransitionWakeLock.isHeld()) { 2198 mNetTransitionWakeLock.release(); 2199 causedBy = mNetTransitionWakeLockCausedBy; 2200 } else { 2201 break; 2202 } 2203 } 2204 if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { 2205 log("Failed to find a new network - expiring NetTransition Wakelock"); 2206 } else { 2207 log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + 2208 " cleared because we found a replacement network"); 2209 } 2210 break; 2211 } 2212 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 2213 handleDeprecatedGlobalHttpProxy(); 2214 break; 2215 } 2216 case EVENT_SET_DEPENDENCY_MET: { 2217 boolean met = (msg.arg1 == ENABLED); 2218 handleSetDependencyMet(msg.arg2, met); 2219 break; 2220 } 2221 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 2222 Intent intent = (Intent)msg.obj; 2223 sendStickyBroadcast(intent); 2224 break; 2225 } 2226 case EVENT_SET_POLICY_DATA_ENABLE: { 2227 final int networkType = msg.arg1; 2228 final boolean enabled = msg.arg2 == ENABLED; 2229 handleSetPolicyDataEnable(networkType, enabled); 2230 break; 2231 } 2232 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 2233 int tag = mEnableFailFastMobileDataTag.get(); 2234 if (msg.arg1 == tag) { 2235 MobileDataStateTracker mobileDst = 2236 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2237 if (mobileDst != null) { 2238 mobileDst.setEnableFailFastMobileData(msg.arg2); 2239 } 2240 } else { 2241 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 2242 + " != tag:" + tag); 2243 } 2244 break; 2245 } 2246 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 2247 handleNetworkSamplingTimeout(); 2248 break; 2249 } 2250 case EVENT_PROXY_HAS_CHANGED: { 2251 handleApplyDefaultProxy((ProxyInfo)msg.obj); 2252 break; 2253 } 2254 case EVENT_REGISTER_NETWORK_FACTORY: { 2255 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 2256 break; 2257 } 2258 case EVENT_UNREGISTER_NETWORK_FACTORY: { 2259 handleUnregisterNetworkFactory((Messenger)msg.obj); 2260 break; 2261 } 2262 case EVENT_REGISTER_NETWORK_AGENT: { 2263 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 2264 break; 2265 } 2266 case EVENT_REGISTER_NETWORK_REQUEST: 2267 case EVENT_REGISTER_NETWORK_LISTENER: { 2268 handleRegisterNetworkRequest(msg); 2269 break; 2270 } 2271 case EVENT_RELEASE_NETWORK_REQUEST: { 2272 handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); 2273 break; 2274 } 2275 case EVENT_SYSTEM_READY: { 2276 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2277 nai.networkMonitor.systemReady = true; 2278 } 2279 break; 2280 } 2281 } 2282 } 2283 } 2284 2285 // javadoc from interface 2286 public int tether(String iface) { 2287 enforceTetherChangePermission(); 2288 2289 if (isTetheringSupported()) { 2290 return mTethering.tether(iface); 2291 } else { 2292 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2293 } 2294 } 2295 2296 // javadoc from interface 2297 public int untether(String iface) { 2298 enforceTetherChangePermission(); 2299 2300 if (isTetheringSupported()) { 2301 return mTethering.untether(iface); 2302 } else { 2303 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2304 } 2305 } 2306 2307 // javadoc from interface 2308 public int getLastTetherError(String iface) { 2309 enforceTetherAccessPermission(); 2310 2311 if (isTetheringSupported()) { 2312 return mTethering.getLastTetherError(iface); 2313 } else { 2314 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2315 } 2316 } 2317 2318 // TODO - proper iface API for selection by property, inspection, etc 2319 public String[] getTetherableUsbRegexs() { 2320 enforceTetherAccessPermission(); 2321 if (isTetheringSupported()) { 2322 return mTethering.getTetherableUsbRegexs(); 2323 } else { 2324 return new String[0]; 2325 } 2326 } 2327 2328 public String[] getTetherableWifiRegexs() { 2329 enforceTetherAccessPermission(); 2330 if (isTetheringSupported()) { 2331 return mTethering.getTetherableWifiRegexs(); 2332 } else { 2333 return new String[0]; 2334 } 2335 } 2336 2337 public String[] getTetherableBluetoothRegexs() { 2338 enforceTetherAccessPermission(); 2339 if (isTetheringSupported()) { 2340 return mTethering.getTetherableBluetoothRegexs(); 2341 } else { 2342 return new String[0]; 2343 } 2344 } 2345 2346 public int setUsbTethering(boolean enable) { 2347 enforceTetherChangePermission(); 2348 if (isTetheringSupported()) { 2349 return mTethering.setUsbTethering(enable); 2350 } else { 2351 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2352 } 2353 } 2354 2355 // TODO - move iface listing, queries, etc to new module 2356 // javadoc from interface 2357 public String[] getTetherableIfaces() { 2358 enforceTetherAccessPermission(); 2359 return mTethering.getTetherableIfaces(); 2360 } 2361 2362 public String[] getTetheredIfaces() { 2363 enforceTetherAccessPermission(); 2364 return mTethering.getTetheredIfaces(); 2365 } 2366 2367 public String[] getTetheringErroredIfaces() { 2368 enforceTetherAccessPermission(); 2369 return mTethering.getErroredIfaces(); 2370 } 2371 2372 public String[] getTetheredDhcpRanges() { 2373 enforceConnectivityInternalPermission(); 2374 return mTethering.getTetheredDhcpRanges(); 2375 } 2376 2377 // if ro.tether.denied = true we default to no tethering 2378 // gservices could set the secure setting to 1 though to enable it on a build where it 2379 // had previously been turned off. 2380 public boolean isTetheringSupported() { 2381 enforceTetherAccessPermission(); 2382 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 2383 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 2384 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0) 2385 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); 2386 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 2387 mTethering.getTetherableWifiRegexs().length != 0 || 2388 mTethering.getTetherableBluetoothRegexs().length != 0) && 2389 mTethering.getUpstreamIfaceTypes().length != 0); 2390 } 2391 2392 // Called when we lose the default network and have no replacement yet. 2393 // This will automatically be cleared after X seconds or a new default network 2394 // becomes CONNECTED, whichever happens first. The timer is started by the 2395 // first caller and not restarted by subsequent callers. 2396 private void requestNetworkTransitionWakelock(String forWhom) { 2397 int serialNum = 0; 2398 synchronized (this) { 2399 if (mNetTransitionWakeLock.isHeld()) return; 2400 serialNum = ++mNetTransitionWakeLockSerialNumber; 2401 mNetTransitionWakeLock.acquire(); 2402 mNetTransitionWakeLockCausedBy = forWhom; 2403 } 2404 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2405 EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), 2406 mNetTransitionWakeLockTimeout); 2407 return; 2408 } 2409 2410 // 100 percent is full good, 0 is full bad. 2411 public void reportInetCondition(int networkType, int percentage) { 2412 if (percentage > 50) return; // don't handle good network reports 2413 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 2414 if (nai != null) reportBadNetwork(nai.network); 2415 } 2416 2417 public void reportBadNetwork(Network network) { 2418 //TODO 2419 } 2420 2421 public ProxyInfo getProxy() { 2422 // this information is already available as a world read/writable jvm property 2423 // so this API change wouldn't have a benifit. It also breaks the passing 2424 // of proxy info to all the JVMs. 2425 // enforceAccessPermission(); 2426 synchronized (mProxyLock) { 2427 ProxyInfo ret = mGlobalProxy; 2428 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 2429 return ret; 2430 } 2431 } 2432 2433 public void setGlobalProxy(ProxyInfo proxyProperties) { 2434 enforceConnectivityInternalPermission(); 2435 2436 synchronized (mProxyLock) { 2437 if (proxyProperties == mGlobalProxy) return; 2438 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 2439 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 2440 2441 String host = ""; 2442 int port = 0; 2443 String exclList = ""; 2444 String pacFileUrl = ""; 2445 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 2446 (proxyProperties.getPacFileUrl() != null))) { 2447 if (!proxyProperties.isValid()) { 2448 if (DBG) 2449 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2450 return; 2451 } 2452 mGlobalProxy = new ProxyInfo(proxyProperties); 2453 host = mGlobalProxy.getHost(); 2454 port = mGlobalProxy.getPort(); 2455 exclList = mGlobalProxy.getExclusionListAsString(); 2456 if (proxyProperties.getPacFileUrl() != null) { 2457 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 2458 } 2459 } else { 2460 mGlobalProxy = null; 2461 } 2462 ContentResolver res = mContext.getContentResolver(); 2463 final long token = Binder.clearCallingIdentity(); 2464 try { 2465 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 2466 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 2467 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 2468 exclList); 2469 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 2470 } finally { 2471 Binder.restoreCallingIdentity(token); 2472 } 2473 } 2474 2475 if (mGlobalProxy == null) { 2476 proxyProperties = mDefaultProxy; 2477 } 2478 sendProxyBroadcast(proxyProperties); 2479 } 2480 2481 private void loadGlobalProxy() { 2482 ContentResolver res = mContext.getContentResolver(); 2483 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 2484 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 2485 String exclList = Settings.Global.getString(res, 2486 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 2487 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 2488 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 2489 ProxyInfo proxyProperties; 2490 if (!TextUtils.isEmpty(pacFileUrl)) { 2491 proxyProperties = new ProxyInfo(pacFileUrl); 2492 } else { 2493 proxyProperties = new ProxyInfo(host, port, exclList); 2494 } 2495 if (!proxyProperties.isValid()) { 2496 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2497 return; 2498 } 2499 2500 synchronized (mProxyLock) { 2501 mGlobalProxy = proxyProperties; 2502 } 2503 } 2504 } 2505 2506 public ProxyInfo getGlobalProxy() { 2507 // this information is already available as a world read/writable jvm property 2508 // so this API change wouldn't have a benifit. It also breaks the passing 2509 // of proxy info to all the JVMs. 2510 // enforceAccessPermission(); 2511 synchronized (mProxyLock) { 2512 return mGlobalProxy; 2513 } 2514 } 2515 2516 private void handleApplyDefaultProxy(ProxyInfo proxy) { 2517 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 2518 && (proxy.getPacFileUrl() == null)) { 2519 proxy = null; 2520 } 2521 synchronized (mProxyLock) { 2522 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 2523 if (mDefaultProxy == proxy) return; // catches repeated nulls 2524 if (proxy != null && !proxy.isValid()) { 2525 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 2526 return; 2527 } 2528 2529 // This call could be coming from the PacManager, containing the port of the local 2530 // proxy. If this new proxy matches the global proxy then copy this proxy to the 2531 // global (to get the correct local port), and send a broadcast. 2532 // TODO: Switch PacManager to have its own message to send back rather than 2533 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 2534 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 2535 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 2536 mGlobalProxy = proxy; 2537 sendProxyBroadcast(mGlobalProxy); 2538 return; 2539 } 2540 mDefaultProxy = proxy; 2541 2542 if (mGlobalProxy != null) return; 2543 if (!mDefaultProxyDisabled) { 2544 sendProxyBroadcast(proxy); 2545 } 2546 } 2547 } 2548 2549 private void handleDeprecatedGlobalHttpProxy() { 2550 String proxy = Settings.Global.getString(mContext.getContentResolver(), 2551 Settings.Global.HTTP_PROXY); 2552 if (!TextUtils.isEmpty(proxy)) { 2553 String data[] = proxy.split(":"); 2554 if (data.length == 0) { 2555 return; 2556 } 2557 2558 String proxyHost = data[0]; 2559 int proxyPort = 8080; 2560 if (data.length > 1) { 2561 try { 2562 proxyPort = Integer.parseInt(data[1]); 2563 } catch (NumberFormatException e) { 2564 return; 2565 } 2566 } 2567 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 2568 setGlobalProxy(p); 2569 } 2570 } 2571 2572 private void sendProxyBroadcast(ProxyInfo proxy) { 2573 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 2574 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 2575 if (DBG) log("sending Proxy Broadcast for " + proxy); 2576 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 2577 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 2578 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2579 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 2580 final long ident = Binder.clearCallingIdentity(); 2581 try { 2582 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2583 } finally { 2584 Binder.restoreCallingIdentity(ident); 2585 } 2586 } 2587 2588 private static class SettingsObserver extends ContentObserver { 2589 private int mWhat; 2590 private Handler mHandler; 2591 SettingsObserver(Handler handler, int what) { 2592 super(handler); 2593 mHandler = handler; 2594 mWhat = what; 2595 } 2596 2597 void observe(Context context) { 2598 ContentResolver resolver = context.getContentResolver(); 2599 resolver.registerContentObserver(Settings.Global.getUriFor( 2600 Settings.Global.HTTP_PROXY), false, this); 2601 } 2602 2603 @Override 2604 public void onChange(boolean selfChange) { 2605 mHandler.obtainMessage(mWhat).sendToTarget(); 2606 } 2607 } 2608 2609 private static void log(String s) { 2610 Slog.d(TAG, s); 2611 } 2612 2613 private static void loge(String s) { 2614 Slog.e(TAG, s); 2615 } 2616 2617 int convertFeatureToNetworkType(int networkType, String feature) { 2618 int usedNetworkType = networkType; 2619 2620 if(networkType == ConnectivityManager.TYPE_MOBILE) { 2621 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 2622 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 2623 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 2624 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 2625 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 2626 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 2627 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 2628 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 2629 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 2630 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 2631 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 2632 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 2633 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 2634 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 2635 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 2636 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { 2637 usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; 2638 } else { 2639 Slog.e(TAG, "Can't match any mobile netTracker!"); 2640 } 2641 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 2642 if (TextUtils.equals(feature, "p2p")) { 2643 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 2644 } else { 2645 Slog.e(TAG, "Can't match any wifi netTracker!"); 2646 } 2647 } else { 2648 Slog.e(TAG, "Unexpected network type"); 2649 } 2650 return usedNetworkType; 2651 } 2652 2653 private static <T> T checkNotNull(T value, String message) { 2654 if (value == null) { 2655 throw new NullPointerException(message); 2656 } 2657 return value; 2658 } 2659 2660 /** 2661 * Prepare for a VPN application. This method is used by VpnDialogs 2662 * and not available in ConnectivityManager. Permissions are checked 2663 * in Vpn class. 2664 * @hide 2665 */ 2666 @Override 2667 public boolean prepareVpn(String oldPackage, String newPackage) { 2668 throwIfLockdownEnabled(); 2669 int user = UserHandle.getUserId(Binder.getCallingUid()); 2670 synchronized(mVpns) { 2671 return mVpns.get(user).prepare(oldPackage, newPackage); 2672 } 2673 } 2674 2675 /** 2676 * Configure a TUN interface and return its file descriptor. Parameters 2677 * are encoded and opaque to this class. This method is used by VpnBuilder 2678 * and not available in ConnectivityManager. Permissions are checked in 2679 * Vpn class. 2680 * @hide 2681 */ 2682 @Override 2683 public ParcelFileDescriptor establishVpn(VpnConfig config) { 2684 throwIfLockdownEnabled(); 2685 int user = UserHandle.getUserId(Binder.getCallingUid()); 2686 synchronized(mVpns) { 2687 return mVpns.get(user).establish(config); 2688 } 2689 } 2690 2691 /** 2692 * Start legacy VPN, controlling native daemons as needed. Creates a 2693 * secondary thread to perform connection work, returning quickly. 2694 */ 2695 @Override 2696 public void startLegacyVpn(VpnProfile profile) { 2697 throwIfLockdownEnabled(); 2698 final LinkProperties egress = getActiveLinkProperties(); 2699 if (egress == null) { 2700 throw new IllegalStateException("Missing active network connection"); 2701 } 2702 int user = UserHandle.getUserId(Binder.getCallingUid()); 2703 synchronized(mVpns) { 2704 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 2705 } 2706 } 2707 2708 /** 2709 * Return the information of the ongoing legacy VPN. This method is used 2710 * by VpnSettings and not available in ConnectivityManager. Permissions 2711 * are checked in Vpn class. 2712 * @hide 2713 */ 2714 @Override 2715 public LegacyVpnInfo getLegacyVpnInfo() { 2716 throwIfLockdownEnabled(); 2717 int user = UserHandle.getUserId(Binder.getCallingUid()); 2718 synchronized(mVpns) { 2719 return mVpns.get(user).getLegacyVpnInfo(); 2720 } 2721 } 2722 2723 /** 2724 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 2725 * not available in ConnectivityManager. 2726 * Permissions are checked in Vpn class. 2727 * @hide 2728 */ 2729 @Override 2730 public VpnConfig getVpnConfig() { 2731 int user = UserHandle.getUserId(Binder.getCallingUid()); 2732 synchronized(mVpns) { 2733 return mVpns.get(user).getVpnConfig(); 2734 } 2735 } 2736 2737 @Override 2738 public boolean updateLockdownVpn() { 2739 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 2740 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 2741 return false; 2742 } 2743 2744 // Tear down existing lockdown if profile was removed 2745 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 2746 if (mLockdownEnabled) { 2747 if (!mKeyStore.isUnlocked()) { 2748 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 2749 return false; 2750 } 2751 2752 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 2753 final VpnProfile profile = VpnProfile.decode( 2754 profileName, mKeyStore.get(Credentials.VPN + profileName)); 2755 int user = UserHandle.getUserId(Binder.getCallingUid()); 2756 synchronized(mVpns) { 2757 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 2758 profile)); 2759 } 2760 } else { 2761 setLockdownTracker(null); 2762 } 2763 2764 return true; 2765 } 2766 2767 /** 2768 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 2769 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 2770 */ 2771 private void setLockdownTracker(LockdownVpnTracker tracker) { 2772 // Shutdown any existing tracker 2773 final LockdownVpnTracker existing = mLockdownTracker; 2774 mLockdownTracker = null; 2775 if (existing != null) { 2776 existing.shutdown(); 2777 } 2778 2779 try { 2780 if (tracker != null) { 2781 mNetd.setFirewallEnabled(true); 2782 mNetd.setFirewallInterfaceRule("lo", true); 2783 mLockdownTracker = tracker; 2784 mLockdownTracker.init(); 2785 } else { 2786 mNetd.setFirewallEnabled(false); 2787 } 2788 } catch (RemoteException e) { 2789 // ignored; NMS lives inside system_server 2790 } 2791 } 2792 2793 private void throwIfLockdownEnabled() { 2794 if (mLockdownEnabled) { 2795 throw new IllegalStateException("Unavailable in lockdown mode"); 2796 } 2797 } 2798 2799 public void supplyMessenger(int networkType, Messenger messenger) { 2800 enforceConnectivityInternalPermission(); 2801 2802 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 2803 mNetTrackers[networkType].supplyMessenger(messenger); 2804 } 2805 } 2806 2807 public int findConnectionTypeForIface(String iface) { 2808 enforceConnectivityInternalPermission(); 2809 2810 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 2811 for (NetworkStateTracker tracker : mNetTrackers) { 2812 if (tracker != null) { 2813 LinkProperties lp = tracker.getLinkProperties(); 2814 if (lp != null && iface.equals(lp.getInterfaceName())) { 2815 return tracker.getNetworkInfo().getType(); 2816 } 2817 } 2818 } 2819 return ConnectivityManager.TYPE_NONE; 2820 } 2821 2822 /** 2823 * Have mobile data fail fast if enabled. 2824 * 2825 * @param enabled DctConstants.ENABLED/DISABLED 2826 */ 2827 private void setEnableFailFastMobileData(int enabled) { 2828 int tag; 2829 2830 if (enabled == DctConstants.ENABLED) { 2831 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 2832 } else { 2833 tag = mEnableFailFastMobileDataTag.get(); 2834 } 2835 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 2836 enabled)); 2837 } 2838 2839 private boolean isMobileDataStateTrackerReady() { 2840 MobileDataStateTracker mdst = 2841 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 2842 return (mdst != null) && (mdst.isReady()); 2843 } 2844 2845 /** 2846 * The ResultReceiver resultCode for checkMobileProvisioning (CMP_RESULT_CODE) 2847 */ 2848 2849 /** 2850 * No connection was possible to the network. 2851 * This is NOT a warm sim. 2852 */ 2853 private static final int CMP_RESULT_CODE_NO_CONNECTION = 0; 2854 2855 /** 2856 * A connection was made to the internet, all is well. 2857 * This is NOT a warm sim. 2858 */ 2859 private static final int CMP_RESULT_CODE_CONNECTABLE = 1; 2860 2861 /** 2862 * A connection was made but no dns server was available to resolve a name to address. 2863 * This is NOT a warm sim since provisioning network is supported. 2864 */ 2865 private static final int CMP_RESULT_CODE_NO_DNS = 2; 2866 2867 /** 2868 * A connection was made but could not open a TCP connection. 2869 * This is NOT a warm sim since provisioning network is supported. 2870 */ 2871 private static final int CMP_RESULT_CODE_NO_TCP_CONNECTION = 3; 2872 2873 /** 2874 * A connection was made but there was a redirection, we appear to be in walled garden. 2875 * This is an indication of a warm sim on a mobile network such as T-Mobile. 2876 */ 2877 private static final int CMP_RESULT_CODE_REDIRECTED = 4; 2878 2879 /** 2880 * The mobile network is a provisioning network. 2881 * This is an indication of a warm sim on a mobile network such as AT&T. 2882 */ 2883 private static final int CMP_RESULT_CODE_PROVISIONING_NETWORK = 5; 2884 2885 /** 2886 * The mobile network is provisioning 2887 */ 2888 private static final int CMP_RESULT_CODE_IS_PROVISIONING = 6; 2889 2890 private AtomicBoolean mIsProvisioningNetwork = new AtomicBoolean(false); 2891 private AtomicBoolean mIsStartingProvisioning = new AtomicBoolean(false); 2892 2893 private AtomicBoolean mIsCheckingMobileProvisioning = new AtomicBoolean(false); 2894 2895 @Override 2896 public int checkMobileProvisioning(int suggestedTimeOutMs) { 2897 int timeOutMs = -1; 2898 if (DBG) log("checkMobileProvisioning: E suggestedTimeOutMs=" + suggestedTimeOutMs); 2899 enforceConnectivityInternalPermission(); 2900 2901 final long token = Binder.clearCallingIdentity(); 2902 try { 2903 timeOutMs = suggestedTimeOutMs; 2904 if (suggestedTimeOutMs > CheckMp.MAX_TIMEOUT_MS) { 2905 timeOutMs = CheckMp.MAX_TIMEOUT_MS; 2906 } 2907 2908 // Check that mobile networks are supported 2909 if (!isNetworkSupported(ConnectivityManager.TYPE_MOBILE) 2910 || !isNetworkSupported(ConnectivityManager.TYPE_MOBILE_HIPRI)) { 2911 if (DBG) log("checkMobileProvisioning: X no mobile network"); 2912 return timeOutMs; 2913 } 2914 2915 // If we're already checking don't do it again 2916 // TODO: Add a queue of results... 2917 if (mIsCheckingMobileProvisioning.getAndSet(true)) { 2918 if (DBG) log("checkMobileProvisioning: X already checking ignore for the moment"); 2919 return timeOutMs; 2920 } 2921 2922 // Start off with mobile notification off 2923 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 2924 2925 CheckMp checkMp = new CheckMp(mContext, this); 2926 CheckMp.CallBack cb = new CheckMp.CallBack() { 2927 @Override 2928 void onComplete(Integer result) { 2929 if (DBG) log("CheckMp.onComplete: result=" + result); 2930 NetworkInfo ni = 2931 mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI].getNetworkInfo(); 2932 switch(result) { 2933 case CMP_RESULT_CODE_CONNECTABLE: 2934 case CMP_RESULT_CODE_NO_CONNECTION: 2935 case CMP_RESULT_CODE_NO_DNS: 2936 case CMP_RESULT_CODE_NO_TCP_CONNECTION: { 2937 if (DBG) log("CheckMp.onComplete: ignore, connected or no connection"); 2938 break; 2939 } 2940 case CMP_RESULT_CODE_REDIRECTED: { 2941 if (DBG) log("CheckMp.onComplete: warm sim"); 2942 String url = getMobileProvisioningUrl(); 2943 if (TextUtils.isEmpty(url)) { 2944 url = getMobileRedirectedProvisioningUrl(); 2945 } 2946 if (TextUtils.isEmpty(url) == false) { 2947 if (DBG) log("CheckMp.onComplete: warm (redirected), url=" + url); 2948 setProvNotificationVisible(true, 2949 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 2950 url); 2951 } else { 2952 if (DBG) log("CheckMp.onComplete: warm (redirected), no url"); 2953 } 2954 break; 2955 } 2956 case CMP_RESULT_CODE_PROVISIONING_NETWORK: { 2957 String url = getMobileProvisioningUrl(); 2958 if (TextUtils.isEmpty(url) == false) { 2959 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), url=" + url); 2960 setProvNotificationVisible(true, 2961 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 2962 url); 2963 // Mark that we've got a provisioning network and 2964 // Disable Mobile Data until user actually starts provisioning. 2965 mIsProvisioningNetwork.set(true); 2966 MobileDataStateTracker mdst = (MobileDataStateTracker) 2967 mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2968 2969 // Disable radio until user starts provisioning 2970 mdst.setRadio(false); 2971 } else { 2972 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), no url"); 2973 } 2974 break; 2975 } 2976 case CMP_RESULT_CODE_IS_PROVISIONING: { 2977 // FIXME: Need to know when provisioning is done. Probably we can 2978 // check the completion status if successful we're done if we 2979 // "timedout" or still connected to provisioning APN turn off data? 2980 if (DBG) log("CheckMp.onComplete: provisioning started"); 2981 mIsStartingProvisioning.set(false); 2982 break; 2983 } 2984 default: { 2985 loge("CheckMp.onComplete: ignore unexpected result=" + result); 2986 break; 2987 } 2988 } 2989 mIsCheckingMobileProvisioning.set(false); 2990 } 2991 }; 2992 CheckMp.Params params = 2993 new CheckMp.Params(checkMp.getDefaultUrl(), timeOutMs, cb); 2994 if (DBG) log("checkMobileProvisioning: params=" + params); 2995 // TODO: Reenable when calls to the now defunct 2996 // MobileDataStateTracker.isProvisioningNetwork() are removed. 2997 // This code should be moved to the Telephony code. 2998 // checkMp.execute(params); 2999 } finally { 3000 Binder.restoreCallingIdentity(token); 3001 if (DBG) log("checkMobileProvisioning: X"); 3002 } 3003 return timeOutMs; 3004 } 3005 3006 static class CheckMp extends 3007 AsyncTask<CheckMp.Params, Void, Integer> { 3008 private static final String CHECKMP_TAG = "CheckMp"; 3009 3010 // adb shell setprop persist.checkmp.testfailures 1 to enable testing failures 3011 private static boolean mTestingFailures; 3012 3013 // Choosing 4 loops as half of them will use HTTPS and the other half HTTP 3014 private static final int MAX_LOOPS = 4; 3015 3016 // Number of milli-seconds to complete all of the retires 3017 public static final int MAX_TIMEOUT_MS = 60000; 3018 3019 // The socket should retry only 5 seconds, the default is longer 3020 private static final int SOCKET_TIMEOUT_MS = 5000; 3021 3022 // Sleep time for network errors 3023 private static final int NET_ERROR_SLEEP_SEC = 3; 3024 3025 // Sleep time for network route establishment 3026 private static final int NET_ROUTE_ESTABLISHMENT_SLEEP_SEC = 3; 3027 3028 // Short sleep time for polling :( 3029 private static final int POLLING_SLEEP_SEC = 1; 3030 3031 private Context mContext; 3032 private ConnectivityService mCs; 3033 private TelephonyManager mTm; 3034 private Params mParams; 3035 3036 /** 3037 * Parameters for AsyncTask.execute 3038 */ 3039 static class Params { 3040 private String mUrl; 3041 private long mTimeOutMs; 3042 private CallBack mCb; 3043 3044 Params(String url, long timeOutMs, CallBack cb) { 3045 mUrl = url; 3046 mTimeOutMs = timeOutMs; 3047 mCb = cb; 3048 } 3049 3050 @Override 3051 public String toString() { 3052 return "{" + " url=" + mUrl + " mTimeOutMs=" + mTimeOutMs + " mCb=" + mCb + "}"; 3053 } 3054 } 3055 3056 // As explained to me by Brian Carlstrom and Kenny Root, Certificates can be 3057 // issued by name or ip address, for Google its by name so when we construct 3058 // this HostnameVerifier we'll pass the original Uri and use it to verify 3059 // the host. If the host name in the original uril fails we'll test the 3060 // hostname parameter just incase things change. 3061 static class CheckMpHostnameVerifier implements HostnameVerifier { 3062 Uri mOrgUri; 3063 3064 CheckMpHostnameVerifier(Uri orgUri) { 3065 mOrgUri = orgUri; 3066 } 3067 3068 @Override 3069 public boolean verify(String hostname, SSLSession session) { 3070 HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier(); 3071 String orgUriHost = mOrgUri.getHost(); 3072 boolean retVal = hv.verify(orgUriHost, session) || hv.verify(hostname, session); 3073 if (DBG) { 3074 log("isMobileOk: hostnameVerify retVal=" + retVal + " hostname=" + hostname 3075 + " orgUriHost=" + orgUriHost); 3076 } 3077 return retVal; 3078 } 3079 } 3080 3081 /** 3082 * The call back object passed in Params. onComplete will be called 3083 * on the main thread. 3084 */ 3085 abstract static class CallBack { 3086 // Called on the main thread. 3087 abstract void onComplete(Integer result); 3088 } 3089 3090 public CheckMp(Context context, ConnectivityService cs) { 3091 if (Build.IS_DEBUGGABLE) { 3092 mTestingFailures = 3093 SystemProperties.getInt("persist.checkmp.testfailures", 0) == 1; 3094 } else { 3095 mTestingFailures = false; 3096 } 3097 3098 mContext = context; 3099 mCs = cs; 3100 3101 // Setup access to TelephonyService we'll be using. 3102 mTm = (TelephonyManager) mContext.getSystemService( 3103 Context.TELEPHONY_SERVICE); 3104 } 3105 3106 /** 3107 * Get the default url to use for the test. 3108 */ 3109 public String getDefaultUrl() { 3110 // See http://go/clientsdns for usage approval 3111 String server = Settings.Global.getString(mContext.getContentResolver(), 3112 Settings.Global.CAPTIVE_PORTAL_SERVER); 3113 if (server == null) { 3114 server = "clients3.google.com"; 3115 } 3116 return "http://" + server + "/generate_204"; 3117 } 3118 3119 /** 3120 * Detect if its possible to connect to the http url. DNS based detection techniques 3121 * do not work at all hotspots. The best way to check is to perform a request to 3122 * a known address that fetches the data we expect. 3123 */ 3124 private synchronized Integer isMobileOk(Params params) { 3125 Integer result = CMP_RESULT_CODE_NO_CONNECTION; 3126 Uri orgUri = Uri.parse(params.mUrl); 3127 Random rand = new Random(); 3128 mParams = params; 3129 3130 if (mCs.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false) { 3131 result = CMP_RESULT_CODE_NO_CONNECTION; 3132 log("isMobileOk: X not mobile capable result=" + result); 3133 return result; 3134 } 3135 3136 if (mCs.mIsStartingProvisioning.get()) { 3137 result = CMP_RESULT_CODE_IS_PROVISIONING; 3138 log("isMobileOk: X is provisioning result=" + result); 3139 return result; 3140 } 3141 3142 // See if we've already determined we've got a provisioning connection, 3143 // if so we don't need to do anything active. 3144 MobileDataStateTracker mdstDefault = (MobileDataStateTracker) 3145 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3146 boolean isDefaultProvisioning = mdstDefault.isProvisioningNetwork(); 3147 log("isMobileOk: isDefaultProvisioning=" + isDefaultProvisioning); 3148 3149 MobileDataStateTracker mdstHipri = (MobileDataStateTracker) 3150 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3151 boolean isHipriProvisioning = mdstHipri.isProvisioningNetwork(); 3152 log("isMobileOk: isHipriProvisioning=" + isHipriProvisioning); 3153 3154 if (isDefaultProvisioning || isHipriProvisioning) { 3155 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3156 log("isMobileOk: X default || hipri is provisioning result=" + result); 3157 return result; 3158 } 3159 3160 try { 3161 // Continue trying to connect until time has run out 3162 long endTime = SystemClock.elapsedRealtime() + params.mTimeOutMs; 3163 3164 if (!mCs.isMobileDataStateTrackerReady()) { 3165 // Wait for MobileDataStateTracker to be ready. 3166 if (DBG) log("isMobileOk: mdst is not ready"); 3167 while(SystemClock.elapsedRealtime() < endTime) { 3168 if (mCs.isMobileDataStateTrackerReady()) { 3169 // Enable fail fast as we'll do retries here and use a 3170 // hipri connection so the default connection stays active. 3171 if (DBG) log("isMobileOk: mdst ready, enable fail fast of mobile data"); 3172 mCs.setEnableFailFastMobileData(DctConstants.ENABLED); 3173 break; 3174 } 3175 sleep(POLLING_SLEEP_SEC); 3176 } 3177 } 3178 3179 log("isMobileOk: start hipri url=" + params.mUrl); 3180 3181 // First wait until we can start using hipri 3182 Binder binder = new Binder(); 3183/* 3184 while(SystemClock.elapsedRealtime() < endTime) { 3185 int ret = mCs.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3186 Phone.FEATURE_ENABLE_HIPRI, binder); 3187 if ((ret == PhoneConstants.APN_ALREADY_ACTIVE) 3188 || (ret == PhoneConstants.APN_REQUEST_STARTED)) { 3189 log("isMobileOk: hipri started"); 3190 break; 3191 } 3192 if (VDBG) log("isMobileOk: hipri not started yet"); 3193 result = CMP_RESULT_CODE_NO_CONNECTION; 3194 sleep(POLLING_SLEEP_SEC); 3195 } 3196*/ 3197 // Continue trying to connect until time has run out 3198 while(SystemClock.elapsedRealtime() < endTime) { 3199 try { 3200 // Wait for hipri to connect. 3201 // TODO: Don't poll and handle situation where hipri fails 3202 // because default is retrying. See b/9569540 3203 NetworkInfo.State state = mCs 3204 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3205 if (state != NetworkInfo.State.CONNECTED) { 3206 if (true/*VDBG*/) { 3207 log("isMobileOk: not connected ni=" + 3208 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3209 } 3210 sleep(POLLING_SLEEP_SEC); 3211 result = CMP_RESULT_CODE_NO_CONNECTION; 3212 continue; 3213 } 3214 3215 // Hipri has started check if this is a provisioning url 3216 MobileDataStateTracker mdst = (MobileDataStateTracker) 3217 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3218 if (mdst.isProvisioningNetwork()) { 3219 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3220 if (DBG) log("isMobileOk: X isProvisioningNetwork result=" + result); 3221 return result; 3222 } else { 3223 if (DBG) log("isMobileOk: isProvisioningNetwork is false, continue"); 3224 } 3225 3226 // Get of the addresses associated with the url host. We need to use the 3227 // address otherwise HttpURLConnection object will use the name to get 3228 // the addresses and will try every address but that will bypass the 3229 // route to host we setup and the connection could succeed as the default 3230 // interface might be connected to the internet via wifi or other interface. 3231 InetAddress[] addresses; 3232 try { 3233 addresses = InetAddress.getAllByName(orgUri.getHost()); 3234 } catch (UnknownHostException e) { 3235 result = CMP_RESULT_CODE_NO_DNS; 3236 log("isMobileOk: X UnknownHostException result=" + result); 3237 return result; 3238 } 3239 log("isMobileOk: addresses=" + inetAddressesToString(addresses)); 3240 3241 // Get the type of addresses supported by this link 3242 LinkProperties lp = mCs.getLinkPropertiesForTypeInternal( 3243 ConnectivityManager.TYPE_MOBILE_HIPRI); 3244 boolean linkHasIpv4 = lp.hasIPv4Address(); 3245 boolean linkHasIpv6 = lp.hasGlobalIPv6Address(); 3246 log("isMobileOk: linkHasIpv4=" + linkHasIpv4 3247 + " linkHasIpv6=" + linkHasIpv6); 3248 3249 final ArrayList<InetAddress> validAddresses = 3250 new ArrayList<InetAddress>(addresses.length); 3251 3252 for (InetAddress addr : addresses) { 3253 if (((addr instanceof Inet4Address) && linkHasIpv4) || 3254 ((addr instanceof Inet6Address) && linkHasIpv6)) { 3255 validAddresses.add(addr); 3256 } 3257 } 3258 3259 if (validAddresses.size() == 0) { 3260 return CMP_RESULT_CODE_NO_CONNECTION; 3261 } 3262 3263 int addrTried = 0; 3264 while (true) { 3265 // Loop through at most MAX_LOOPS valid addresses or until 3266 // we run out of time 3267 if (addrTried++ >= MAX_LOOPS) { 3268 log("isMobileOk: too many loops tried - giving up"); 3269 break; 3270 } 3271 if (SystemClock.elapsedRealtime() >= endTime) { 3272 log("isMobileOk: spend too much time - giving up"); 3273 break; 3274 } 3275 3276 InetAddress hostAddr = validAddresses.get(rand.nextInt( 3277 validAddresses.size())); 3278 3279 // Make a route to host so we check the specific interface. 3280 if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI, 3281 hostAddr.getAddress())) { 3282 // Wait a short time to be sure the route is established ?? 3283 log("isMobileOk:" 3284 + " wait to establish route to hostAddr=" + hostAddr); 3285 sleep(NET_ROUTE_ESTABLISHMENT_SLEEP_SEC); 3286 } else { 3287 log("isMobileOk:" 3288 + " could not establish route to hostAddr=" + hostAddr); 3289 // Wait a short time before the next attempt 3290 sleep(NET_ERROR_SLEEP_SEC); 3291 continue; 3292 } 3293 3294 // Rewrite the url to have numeric address to use the specific route 3295 // using http for half the attempts and https for the other half. 3296 // Doing https first and http second as on a redirected walled garden 3297 // such as t-mobile uses we get a SocketTimeoutException: "SSL 3298 // handshake timed out" which we declare as 3299 // CMP_RESULT_CODE_NO_TCP_CONNECTION. We could change this, but by 3300 // having http second we will be using logic used for some time. 3301 URL newUrl; 3302 String scheme = (addrTried <= (MAX_LOOPS/2)) ? "https" : "http"; 3303 newUrl = new URL(scheme, hostAddr.getHostAddress(), 3304 orgUri.getPath()); 3305 log("isMobileOk: newUrl=" + newUrl); 3306 3307 HttpURLConnection urlConn = null; 3308 try { 3309 // Open the connection set the request headers and get the response 3310 urlConn = (HttpURLConnection)newUrl.openConnection( 3311 java.net.Proxy.NO_PROXY); 3312 if (scheme.equals("https")) { 3313 ((HttpsURLConnection)urlConn).setHostnameVerifier( 3314 new CheckMpHostnameVerifier(orgUri)); 3315 } 3316 urlConn.setInstanceFollowRedirects(false); 3317 urlConn.setConnectTimeout(SOCKET_TIMEOUT_MS); 3318 urlConn.setReadTimeout(SOCKET_TIMEOUT_MS); 3319 urlConn.setUseCaches(false); 3320 urlConn.setAllowUserInteraction(false); 3321 // Set the "Connection" to "Close" as by default "Keep-Alive" 3322 // is used which is useless in this case. 3323 urlConn.setRequestProperty("Connection", "close"); 3324 int responseCode = urlConn.getResponseCode(); 3325 3326 // For debug display the headers 3327 Map<String, List<String>> headers = urlConn.getHeaderFields(); 3328 log("isMobileOk: headers=" + headers); 3329 3330 // Close the connection 3331 urlConn.disconnect(); 3332 urlConn = null; 3333 3334 if (mTestingFailures) { 3335 // Pretend no connection, this tests using http and https 3336 result = CMP_RESULT_CODE_NO_CONNECTION; 3337 log("isMobileOk: TESTING_FAILURES, pretend no connction"); 3338 continue; 3339 } 3340 3341 if (responseCode == 204) { 3342 // Return 3343 result = CMP_RESULT_CODE_CONNECTABLE; 3344 log("isMobileOk: X got expected responseCode=" + responseCode 3345 + " result=" + result); 3346 return result; 3347 } else { 3348 // Retry to be sure this was redirected, we've gotten 3349 // occasions where a server returned 200 even though 3350 // the device didn't have a "warm" sim. 3351 log("isMobileOk: not expected responseCode=" + responseCode); 3352 // TODO - it would be nice in the single-address case to do 3353 // another DNS resolve here, but flushing the cache is a bit 3354 // heavy-handed. 3355 result = CMP_RESULT_CODE_REDIRECTED; 3356 } 3357 } catch (Exception e) { 3358 log("isMobileOk: HttpURLConnection Exception" + e); 3359 result = CMP_RESULT_CODE_NO_TCP_CONNECTION; 3360 if (urlConn != null) { 3361 urlConn.disconnect(); 3362 urlConn = null; 3363 } 3364 sleep(NET_ERROR_SLEEP_SEC); 3365 continue; 3366 } 3367 } 3368 log("isMobileOk: X loops|timed out result=" + result); 3369 return result; 3370 } catch (Exception e) { 3371 log("isMobileOk: Exception e=" + e); 3372 continue; 3373 } 3374 } 3375 log("isMobileOk: timed out"); 3376 } finally { 3377 log("isMobileOk: F stop hipri"); 3378 mCs.setEnableFailFastMobileData(DctConstants.DISABLED); 3379// mCs.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3380// Phone.FEATURE_ENABLE_HIPRI); 3381 3382 // Wait for hipri to disconnect. 3383 long endTime = SystemClock.elapsedRealtime() + 5000; 3384 3385 while(SystemClock.elapsedRealtime() < endTime) { 3386 NetworkInfo.State state = mCs 3387 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3388 if (state != NetworkInfo.State.DISCONNECTED) { 3389 if (VDBG) { 3390 log("isMobileOk: connected ni=" + 3391 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3392 } 3393 sleep(POLLING_SLEEP_SEC); 3394 continue; 3395 } 3396 } 3397 3398 log("isMobileOk: X result=" + result); 3399 } 3400 return result; 3401 } 3402 3403 @Override 3404 protected Integer doInBackground(Params... params) { 3405 return isMobileOk(params[0]); 3406 } 3407 3408 @Override 3409 protected void onPostExecute(Integer result) { 3410 log("onPostExecute: result=" + result); 3411 if ((mParams != null) && (mParams.mCb != null)) { 3412 mParams.mCb.onComplete(result); 3413 } 3414 } 3415 3416 private String inetAddressesToString(InetAddress[] addresses) { 3417 StringBuffer sb = new StringBuffer(); 3418 boolean firstTime = true; 3419 for(InetAddress addr : addresses) { 3420 if (firstTime) { 3421 firstTime = false; 3422 } else { 3423 sb.append(","); 3424 } 3425 sb.append(addr); 3426 } 3427 return sb.toString(); 3428 } 3429 3430 private void printNetworkInfo() { 3431 boolean hasIccCard = mTm.hasIccCard(); 3432 int simState = mTm.getSimState(); 3433 log("hasIccCard=" + hasIccCard 3434 + " simState=" + simState); 3435 NetworkInfo[] ni = mCs.getAllNetworkInfo(); 3436 if (ni != null) { 3437 log("ni.length=" + ni.length); 3438 for (NetworkInfo netInfo: ni) { 3439 log("netInfo=" + netInfo.toString()); 3440 } 3441 } else { 3442 log("no network info ni=null"); 3443 } 3444 } 3445 3446 /** 3447 * Sleep for a few seconds then return. 3448 * @param seconds 3449 */ 3450 private static void sleep(int seconds) { 3451 long stopTime = System.nanoTime() + (seconds * 1000000000); 3452 long sleepTime; 3453 while ((sleepTime = stopTime - System.nanoTime()) > 0) { 3454 try { 3455 Thread.sleep(sleepTime / 1000000); 3456 } catch (InterruptedException ignored) { 3457 } 3458 } 3459 } 3460 3461 private static void log(String s) { 3462 Slog.d(ConnectivityService.TAG, "[" + CHECKMP_TAG + "] " + s); 3463 } 3464 } 3465 3466 // TODO: Move to ConnectivityManager and make public? 3467 private static final String CONNECTED_TO_PROVISIONING_NETWORK_ACTION = 3468 "com.android.server.connectivityservice.CONNECTED_TO_PROVISIONING_NETWORK_ACTION"; 3469 3470 private BroadcastReceiver mProvisioningReceiver = new BroadcastReceiver() { 3471 @Override 3472 public void onReceive(Context context, Intent intent) { 3473 if (intent.getAction().equals(CONNECTED_TO_PROVISIONING_NETWORK_ACTION)) { 3474 handleMobileProvisioningAction(intent.getStringExtra("EXTRA_URL")); 3475 } 3476 } 3477 }; 3478 3479 private void handleMobileProvisioningAction(String url) { 3480 // Mark notification as not visible 3481 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3482 3483 // Check airplane mode 3484 boolean isAirplaneModeOn = Settings.System.getInt(mContext.getContentResolver(), 3485 Settings.Global.AIRPLANE_MODE_ON, 0) == 1; 3486 // If provisioning network and not in airplane mode handle as a special case, 3487 // otherwise launch browser with the intent directly. 3488 if (mIsProvisioningNetwork.get() && !isAirplaneModeOn) { 3489 if (DBG) log("handleMobileProvisioningAction: on prov network enable then launch"); 3490 mIsProvisioningNetwork.set(false); 3491// mIsStartingProvisioning.set(true); 3492// MobileDataStateTracker mdst = (MobileDataStateTracker) 3493// mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3494 // Radio was disabled on CMP_RESULT_CODE_PROVISIONING_NETWORK, enable it here 3495// mdst.setRadio(true); 3496// mdst.setEnableFailFastMobileData(DctConstants.ENABLED); 3497// mdst.enableMobileProvisioning(url); 3498 } else { 3499 if (DBG) log("handleMobileProvisioningAction: not prov network"); 3500 mIsProvisioningNetwork.set(false); 3501 // Check for apps that can handle provisioning first 3502 Intent provisioningIntent = new Intent(TelephonyIntents.ACTION_CARRIER_SETUP); 3503 provisioningIntent.addCategory(TelephonyIntents.CATEGORY_MCCMNC_PREFIX 3504 + mTelephonyManager.getSimOperator()); 3505 if (mContext.getPackageManager().resolveActivity(provisioningIntent, 0 /* flags */) 3506 != null) { 3507 provisioningIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3508 Intent.FLAG_ACTIVITY_NEW_TASK); 3509 mContext.startActivity(provisioningIntent); 3510 } else { 3511 // If no apps exist, use standard URL ACTION_VIEW method 3512 Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, 3513 Intent.CATEGORY_APP_BROWSER); 3514 newIntent.setData(Uri.parse(url)); 3515 newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3516 Intent.FLAG_ACTIVITY_NEW_TASK); 3517 try { 3518 mContext.startActivity(newIntent); 3519 } catch (ActivityNotFoundException e) { 3520 loge("handleMobileProvisioningAction: startActivity failed" + e); 3521 } 3522 } 3523 } 3524 } 3525 3526 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 3527 private volatile boolean mIsNotificationVisible = false; 3528 3529 private void setProvNotificationVisible(boolean visible, int networkType, String extraInfo, 3530 String url) { 3531 if (DBG) { 3532 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 3533 + " extraInfo=" + extraInfo + " url=" + url); 3534 } 3535 Intent intent = null; 3536 PendingIntent pendingIntent = null; 3537 if (visible) { 3538 switch (networkType) { 3539 case ConnectivityManager.TYPE_WIFI: 3540 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3541 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3542 Intent.FLAG_ACTIVITY_NEW_TASK); 3543 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3544 break; 3545 case ConnectivityManager.TYPE_MOBILE: 3546 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3547 intent = new Intent(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 3548 intent.putExtra("EXTRA_URL", url); 3549 intent.setFlags(0); 3550 pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 3551 break; 3552 default: 3553 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3554 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3555 Intent.FLAG_ACTIVITY_NEW_TASK); 3556 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3557 break; 3558 } 3559 } 3560 // Concatenate the range of types onto the range of NetIDs. 3561 int id = MAX_NET_ID + 1 + (networkType - ConnectivityManager.TYPE_NONE); 3562 setProvNotificationVisibleIntent(visible, id, networkType, extraInfo, pendingIntent); 3563 } 3564 3565 /** 3566 * Show or hide network provisioning notificaitons. 3567 * 3568 * @param id an identifier that uniquely identifies this notification. This must match 3569 * between show and hide calls. We use the NetID value but for legacy callers 3570 * we concatenate the range of types with the range of NetIDs. 3571 */ 3572 private void setProvNotificationVisibleIntent(boolean visible, int id, int networkType, 3573 String extraInfo, PendingIntent intent) { 3574 if (DBG) { 3575 log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + 3576 networkType + " extraInfo=" + extraInfo); 3577 } 3578 3579 Resources r = Resources.getSystem(); 3580 NotificationManager notificationManager = (NotificationManager) mContext 3581 .getSystemService(Context.NOTIFICATION_SERVICE); 3582 3583 if (visible) { 3584 CharSequence title; 3585 CharSequence details; 3586 int icon; 3587 Notification notification = new Notification(); 3588 switch (networkType) { 3589 case ConnectivityManager.TYPE_WIFI: 3590 title = r.getString(R.string.wifi_available_sign_in, 0); 3591 details = r.getString(R.string.network_available_sign_in_detailed, 3592 extraInfo); 3593 icon = R.drawable.stat_notify_wifi_in_range; 3594 break; 3595 case ConnectivityManager.TYPE_MOBILE: 3596 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3597 title = r.getString(R.string.network_available_sign_in, 0); 3598 // TODO: Change this to pull from NetworkInfo once a printable 3599 // name has been added to it 3600 details = mTelephonyManager.getNetworkOperatorName(); 3601 icon = R.drawable.stat_notify_rssi_in_range; 3602 break; 3603 default: 3604 title = r.getString(R.string.network_available_sign_in, 0); 3605 details = r.getString(R.string.network_available_sign_in_detailed, 3606 extraInfo); 3607 icon = R.drawable.stat_notify_rssi_in_range; 3608 break; 3609 } 3610 3611 notification.when = 0; 3612 notification.icon = icon; 3613 notification.flags = Notification.FLAG_AUTO_CANCEL; 3614 notification.tickerText = title; 3615 notification.color = mContext.getResources().getColor( 3616 com.android.internal.R.color.system_notification_accent_color); 3617 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 3618 notification.contentIntent = intent; 3619 3620 try { 3621 notificationManager.notify(NOTIFICATION_ID, id, notification); 3622 } catch (NullPointerException npe) { 3623 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 3624 npe.printStackTrace(); 3625 } 3626 } else { 3627 try { 3628 notificationManager.cancel(NOTIFICATION_ID, id); 3629 } catch (NullPointerException npe) { 3630 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 3631 npe.printStackTrace(); 3632 } 3633 } 3634 mIsNotificationVisible = visible; 3635 } 3636 3637 /** Location to an updatable file listing carrier provisioning urls. 3638 * An example: 3639 * 3640 * <?xml version="1.0" encoding="utf-8"?> 3641 * <provisioningUrls> 3642 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 3643 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 3644 * </provisioningUrls> 3645 */ 3646 private static final String PROVISIONING_URL_PATH = 3647 "/data/misc/radio/provisioning_urls.xml"; 3648 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 3649 3650 /** XML tag for root element. */ 3651 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 3652 /** XML tag for individual url */ 3653 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 3654 /** XML tag for redirected url */ 3655 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 3656 /** XML attribute for mcc */ 3657 private static final String ATTR_MCC = "mcc"; 3658 /** XML attribute for mnc */ 3659 private static final String ATTR_MNC = "mnc"; 3660 3661 private static final int REDIRECTED_PROVISIONING = 1; 3662 private static final int PROVISIONING = 2; 3663 3664 private String getProvisioningUrlBaseFromFile(int type) { 3665 FileReader fileReader = null; 3666 XmlPullParser parser = null; 3667 Configuration config = mContext.getResources().getConfiguration(); 3668 String tagType; 3669 3670 switch (type) { 3671 case PROVISIONING: 3672 tagType = TAG_PROVISIONING_URL; 3673 break; 3674 case REDIRECTED_PROVISIONING: 3675 tagType = TAG_REDIRECTED_URL; 3676 break; 3677 default: 3678 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 3679 type); 3680 } 3681 3682 try { 3683 fileReader = new FileReader(mProvisioningUrlFile); 3684 parser = Xml.newPullParser(); 3685 parser.setInput(fileReader); 3686 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 3687 3688 while (true) { 3689 XmlUtils.nextElement(parser); 3690 3691 String element = parser.getName(); 3692 if (element == null) break; 3693 3694 if (element.equals(tagType)) { 3695 String mcc = parser.getAttributeValue(null, ATTR_MCC); 3696 try { 3697 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 3698 String mnc = parser.getAttributeValue(null, ATTR_MNC); 3699 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 3700 parser.next(); 3701 if (parser.getEventType() == XmlPullParser.TEXT) { 3702 return parser.getText(); 3703 } 3704 } 3705 } 3706 } catch (NumberFormatException e) { 3707 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 3708 } 3709 } 3710 } 3711 return null; 3712 } catch (FileNotFoundException e) { 3713 loge("Carrier Provisioning Urls file not found"); 3714 } catch (XmlPullParserException e) { 3715 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 3716 } catch (IOException e) { 3717 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 3718 } finally { 3719 if (fileReader != null) { 3720 try { 3721 fileReader.close(); 3722 } catch (IOException e) {} 3723 } 3724 } 3725 return null; 3726 } 3727 3728 @Override 3729 public String getMobileRedirectedProvisioningUrl() { 3730 enforceConnectivityInternalPermission(); 3731 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 3732 if (TextUtils.isEmpty(url)) { 3733 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 3734 } 3735 return url; 3736 } 3737 3738 @Override 3739 public String getMobileProvisioningUrl() { 3740 enforceConnectivityInternalPermission(); 3741 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 3742 if (TextUtils.isEmpty(url)) { 3743 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 3744 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 3745 } else { 3746 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 3747 } 3748 // populate the iccid, imei and phone number in the provisioning url. 3749 if (!TextUtils.isEmpty(url)) { 3750 String phoneNumber = mTelephonyManager.getLine1Number(); 3751 if (TextUtils.isEmpty(phoneNumber)) { 3752 phoneNumber = "0000000000"; 3753 } 3754 url = String.format(url, 3755 mTelephonyManager.getSimSerialNumber() /* ICCID */, 3756 mTelephonyManager.getDeviceId() /* IMEI */, 3757 phoneNumber /* Phone numer */); 3758 } 3759 3760 return url; 3761 } 3762 3763 @Override 3764 public void setProvisioningNotificationVisible(boolean visible, int networkType, 3765 String extraInfo, String url) { 3766 enforceConnectivityInternalPermission(); 3767 setProvNotificationVisible(visible, networkType, extraInfo, url); 3768 } 3769 3770 @Override 3771 public void setAirplaneMode(boolean enable) { 3772 enforceConnectivityInternalPermission(); 3773 final long ident = Binder.clearCallingIdentity(); 3774 try { 3775 final ContentResolver cr = mContext.getContentResolver(); 3776 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 3777 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 3778 intent.putExtra("state", enable); 3779 mContext.sendBroadcast(intent); 3780 } finally { 3781 Binder.restoreCallingIdentity(ident); 3782 } 3783 } 3784 3785 private void onUserStart(int userId) { 3786 synchronized(mVpns) { 3787 Vpn userVpn = mVpns.get(userId); 3788 if (userVpn != null) { 3789 loge("Starting user already has a VPN"); 3790 return; 3791 } 3792 userVpn = new Vpn(mHandler.getLooper(), mContext, mNetd, this, userId); 3793 mVpns.put(userId, userVpn); 3794 } 3795 } 3796 3797 private void onUserStop(int userId) { 3798 synchronized(mVpns) { 3799 Vpn userVpn = mVpns.get(userId); 3800 if (userVpn == null) { 3801 loge("Stopping user has no VPN"); 3802 return; 3803 } 3804 mVpns.delete(userId); 3805 } 3806 } 3807 3808 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 3809 @Override 3810 public void onReceive(Context context, Intent intent) { 3811 final String action = intent.getAction(); 3812 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3813 if (userId == UserHandle.USER_NULL) return; 3814 3815 if (Intent.ACTION_USER_STARTING.equals(action)) { 3816 onUserStart(userId); 3817 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 3818 onUserStop(userId); 3819 } 3820 } 3821 }; 3822 3823 @Override 3824 public LinkQualityInfo getLinkQualityInfo(int networkType) { 3825 enforceAccessPermission(); 3826 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 3827 return mNetTrackers[networkType].getLinkQualityInfo(); 3828 } else { 3829 return null; 3830 } 3831 } 3832 3833 @Override 3834 public LinkQualityInfo getActiveLinkQualityInfo() { 3835 enforceAccessPermission(); 3836 if (isNetworkTypeValid(mActiveDefaultNetwork) && 3837 mNetTrackers[mActiveDefaultNetwork] != null) { 3838 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 3839 } else { 3840 return null; 3841 } 3842 } 3843 3844 @Override 3845 public LinkQualityInfo[] getAllLinkQualityInfo() { 3846 enforceAccessPermission(); 3847 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 3848 for (NetworkStateTracker tracker : mNetTrackers) { 3849 if (tracker != null) { 3850 LinkQualityInfo li = tracker.getLinkQualityInfo(); 3851 if (li != null) { 3852 result.add(li); 3853 } 3854 } 3855 } 3856 3857 return result.toArray(new LinkQualityInfo[result.size()]); 3858 } 3859 3860 /* Infrastructure for network sampling */ 3861 3862 private void handleNetworkSamplingTimeout() { 3863 3864 log("Sampling interval elapsed, updating statistics .."); 3865 3866 // initialize list of interfaces .. 3867 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 3868 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 3869 for (NetworkStateTracker tracker : mNetTrackers) { 3870 if (tracker != null) { 3871 String ifaceName = tracker.getNetworkInterfaceName(); 3872 if (ifaceName != null) { 3873 mapIfaceToSample.put(ifaceName, null); 3874 } 3875 } 3876 } 3877 3878 // Read samples for all interfaces 3879 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 3880 3881 // process samples for all networks 3882 for (NetworkStateTracker tracker : mNetTrackers) { 3883 if (tracker != null) { 3884 String ifaceName = tracker.getNetworkInterfaceName(); 3885 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 3886 if (ss != null) { 3887 // end the previous sampling cycle 3888 tracker.stopSampling(ss); 3889 // start a new sampling cycle .. 3890 tracker.startSampling(ss); 3891 } 3892 } 3893 } 3894 3895 log("Done."); 3896 3897 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 3898 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 3899 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 3900 3901 if (DBG) log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 3902 3903 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 3904 } 3905 3906 /** 3907 * Sets a network sampling alarm. 3908 */ 3909 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 3910 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 3911 int alarmType; 3912 if (Resources.getSystem().getBoolean( 3913 R.bool.config_networkSamplingWakesDevice)) { 3914 alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP; 3915 } else { 3916 alarmType = AlarmManager.ELAPSED_REALTIME; 3917 } 3918 mAlarmManager.set(alarmType, wakeupTime, intent); 3919 } 3920 3921 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 3922 new HashMap<Messenger, NetworkFactoryInfo>(); 3923 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 3924 new HashMap<NetworkRequest, NetworkRequestInfo>(); 3925 3926 private static class NetworkFactoryInfo { 3927 public final String name; 3928 public final Messenger messenger; 3929 public final AsyncChannel asyncChannel; 3930 3931 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 3932 this.name = name; 3933 this.messenger = messenger; 3934 this.asyncChannel = asyncChannel; 3935 } 3936 } 3937 3938 /** 3939 * Tracks info about the requester. 3940 * Also used to notice when the calling process dies so we can self-expire 3941 */ 3942 private class NetworkRequestInfo implements IBinder.DeathRecipient { 3943 static final boolean REQUEST = true; 3944 static final boolean LISTEN = false; 3945 3946 final NetworkRequest request; 3947 IBinder mBinder; 3948 final int mPid; 3949 final int mUid; 3950 final Messenger messenger; 3951 final boolean isRequest; 3952 3953 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 3954 super(); 3955 messenger = m; 3956 request = r; 3957 mBinder = binder; 3958 mPid = getCallingPid(); 3959 mUid = getCallingUid(); 3960 this.isRequest = isRequest; 3961 3962 try { 3963 mBinder.linkToDeath(this, 0); 3964 } catch (RemoteException e) { 3965 binderDied(); 3966 } 3967 } 3968 3969 void unlinkDeathRecipient() { 3970 mBinder.unlinkToDeath(this, 0); 3971 } 3972 3973 public void binderDied() { 3974 log("ConnectivityService NetworkRequestInfo binderDied(" + 3975 request + ", " + mBinder + ")"); 3976 releaseNetworkRequest(request); 3977 } 3978 3979 public String toString() { 3980 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 3981 mPid + " for " + request; 3982 } 3983 } 3984 3985 @Override 3986 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 3987 Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { 3988 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 3989 == false) { 3990 enforceConnectivityInternalPermission(); 3991 } else { 3992 enforceChangePermission(); 3993 } 3994 3995 networkCapabilities = new NetworkCapabilities(networkCapabilities); 3996 3997 // if UID is restricted, don't allow them to bring up metered APNs 3998 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED) 3999 == false) { 4000 final int uidRules; 4001 synchronized(mRulesLock) { 4002 uidRules = mUidRules.get(Binder.getCallingUid(), RULE_ALLOW_ALL); 4003 } 4004 if ((uidRules & RULE_REJECT_METERED) != 0) { 4005 // we could silently fail or we can filter the available nets to only give 4006 // them those they have access to. Chose the more useful 4007 networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 4008 } 4009 } 4010 4011 if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { 4012 throw new IllegalArgumentException("Bad timeout specified"); 4013 } 4014 NetworkRequest networkRequest = new NetworkRequest(networkCapabilities, legacyType, 4015 nextNetworkRequestId()); 4016 if (DBG) log("requestNetwork for " + networkRequest); 4017 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4018 NetworkRequestInfo.REQUEST); 4019 4020 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 4021 if (timeoutMs > 0) { 4022 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 4023 nri), timeoutMs); 4024 } 4025 return networkRequest; 4026 } 4027 4028 @Override 4029 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 4030 PendingIntent operation) { 4031 // TODO 4032 return null; 4033 } 4034 4035 @Override 4036 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 4037 Messenger messenger, IBinder binder) { 4038 enforceAccessPermission(); 4039 4040 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 4041 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 4042 if (DBG) log("listenForNetwork for " + networkRequest); 4043 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4044 NetworkRequestInfo.LISTEN); 4045 4046 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 4047 return networkRequest; 4048 } 4049 4050 @Override 4051 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 4052 PendingIntent operation) { 4053 } 4054 4055 @Override 4056 public void releaseNetworkRequest(NetworkRequest networkRequest) { 4057 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), 4058 0, networkRequest)); 4059 } 4060 4061 @Override 4062 public void registerNetworkFactory(Messenger messenger, String name) { 4063 enforceConnectivityInternalPermission(); 4064 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 4065 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 4066 } 4067 4068 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 4069 if (VDBG) log("Got NetworkFactory Messenger for " + nfi.name); 4070 mNetworkFactoryInfos.put(nfi.messenger, nfi); 4071 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 4072 } 4073 4074 @Override 4075 public void unregisterNetworkFactory(Messenger messenger) { 4076 enforceConnectivityInternalPermission(); 4077 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 4078 } 4079 4080 private void handleUnregisterNetworkFactory(Messenger messenger) { 4081 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 4082 if (nfi == null) { 4083 if (VDBG) log("Failed to find Messenger in unregisterNetworkFactory"); 4084 return; 4085 } 4086 if (VDBG) log("unregisterNetworkFactory for " + nfi.name); 4087 } 4088 4089 /** 4090 * NetworkAgentInfo supporting a request by requestId. 4091 * These have already been vetted (their Capabilities satisfy the request) 4092 * and the are the highest scored network available. 4093 * the are keyed off the Requests requestId. 4094 */ 4095 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 4096 new SparseArray<NetworkAgentInfo>(); 4097 4098 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 4099 new SparseArray<NetworkAgentInfo>(); 4100 4101 // NetworkAgentInfo keyed off its connecting messenger 4102 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 4103 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 4104 new HashMap<Messenger, NetworkAgentInfo>(); 4105 4106 private final NetworkRequest mDefaultRequest; 4107 4108 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 4109 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 4110 } 4111 4112 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 4113 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 4114 int currentScore, NetworkMisc networkMisc) { 4115 enforceConnectivityInternalPermission(); 4116 4117 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), 4118 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 4119 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler, 4120 networkMisc); 4121 synchronized (this) { 4122 nai.networkMonitor.systemReady = mSystemReady; 4123 } 4124 if (VDBG) log("registerNetworkAgent " + nai); 4125 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 4126 } 4127 4128 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 4129 if (VDBG) log("Got NetworkAgent Messenger"); 4130 mNetworkAgentInfos.put(na.messenger, na); 4131 assignNextNetId(na); 4132 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 4133 NetworkInfo networkInfo = na.networkInfo; 4134 na.networkInfo = null; 4135 updateNetworkInfo(na, networkInfo); 4136 } 4137 4138 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 4139 LinkProperties newLp = networkAgent.linkProperties; 4140 int netId = networkAgent.network.netId; 4141 4142 updateInterfaces(newLp, oldLp, netId); 4143 updateMtu(newLp, oldLp); 4144 updateTcpBufferSizes(networkAgent); 4145 // TODO - figure out what to do for clat 4146// for (LinkProperties lp : newLp.getStackedLinks()) { 4147// updateMtu(lp, null); 4148// } 4149 final boolean flushDns = updateRoutes(newLp, oldLp, netId); 4150 updateDnses(newLp, oldLp, netId, flushDns); 4151 updateClat(newLp, oldLp, networkAgent); 4152 } 4153 4154 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { 4155 // Update 464xlat state. 4156 if (mClat.requiresClat(na)) { 4157 4158 // If the connection was previously using clat, but is not using it now, stop the clat 4159 // daemon. Normally, this happens automatically when the connection disconnects, but if 4160 // the disconnect is not reported, or if the connection's LinkProperties changed for 4161 // some other reason (e.g., handoff changes the IP addresses on the link), it would 4162 // still be running. If it's not running, then stopping it is a no-op. 4163 if (Nat464Xlat.isRunningClat(oldLp) && !Nat464Xlat.isRunningClat(newLp)) { 4164 mClat.stopClat(); 4165 } 4166 // If the link requires clat to be running, then start the daemon now. 4167 if (na.networkInfo.isConnected()) { 4168 mClat.startClat(na); 4169 } else { 4170 mClat.stopClat(); 4171 } 4172 } 4173 } 4174 4175 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 4176 CompareResult<String> interfaceDiff = new CompareResult<String>(); 4177 if (oldLp != null) { 4178 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 4179 } else if (newLp != null) { 4180 interfaceDiff.added = newLp.getAllInterfaceNames(); 4181 } 4182 for (String iface : interfaceDiff.added) { 4183 try { 4184 mNetd.addInterfaceToNetwork(iface, netId); 4185 } catch (Exception e) { 4186 loge("Exception adding interface: " + e); 4187 } 4188 } 4189 for (String iface : interfaceDiff.removed) { 4190 try { 4191 mNetd.removeInterfaceFromNetwork(iface, netId); 4192 } catch (Exception e) { 4193 loge("Exception removing interface: " + e); 4194 } 4195 } 4196 } 4197 4198 /** 4199 * Have netd update routes from oldLp to newLp. 4200 * @return true if routes changed between oldLp and newLp 4201 */ 4202 private boolean updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 4203 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 4204 if (oldLp != null) { 4205 routeDiff = oldLp.compareAllRoutes(newLp); 4206 } else if (newLp != null) { 4207 routeDiff.added = newLp.getAllRoutes(); 4208 } 4209 4210 // add routes before removing old in case it helps with continuous connectivity 4211 4212 // do this twice, adding non-nexthop routes first, then routes they are dependent on 4213 for (RouteInfo route : routeDiff.added) { 4214 if (route.hasGateway()) continue; 4215 try { 4216 mNetd.addRoute(netId, route); 4217 } catch (Exception e) { 4218 loge("Exception in addRoute for non-gateway: " + e); 4219 } 4220 } 4221 for (RouteInfo route : routeDiff.added) { 4222 if (route.hasGateway() == false) continue; 4223 try { 4224 mNetd.addRoute(netId, route); 4225 } catch (Exception e) { 4226 loge("Exception in addRoute for gateway: " + e); 4227 } 4228 } 4229 4230 for (RouteInfo route : routeDiff.removed) { 4231 try { 4232 mNetd.removeRoute(netId, route); 4233 } catch (Exception e) { 4234 loge("Exception in removeRoute: " + e); 4235 } 4236 } 4237 return !routeDiff.added.isEmpty() || !routeDiff.removed.isEmpty(); 4238 } 4239 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId, boolean flush) { 4240 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 4241 Collection<InetAddress> dnses = newLp.getDnsServers(); 4242 if (dnses.size() == 0 && mDefaultDns != null) { 4243 dnses = new ArrayList(); 4244 dnses.add(mDefaultDns); 4245 if (DBG) { 4246 loge("no dns provided for netId " + netId + ", so using defaults"); 4247 } 4248 } 4249 try { 4250 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 4251 newLp.getDomains()); 4252 } catch (Exception e) { 4253 loge("Exception in setDnsServersForNetwork: " + e); 4254 } 4255 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 4256 if (defaultNai != null && defaultNai.network.netId == netId) { 4257 setDefaultDnsSystemProperties(dnses); 4258 } 4259 flushVmDnsCache(); 4260 } else if (flush) { 4261 try { 4262 mNetd.flushNetworkDnsCache(netId); 4263 } catch (Exception e) { 4264 loge("Exception in flushNetworkDnsCache: " + e); 4265 } 4266 flushVmDnsCache(); 4267 } 4268 } 4269 4270 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 4271 int last = 0; 4272 for (InetAddress dns : dnses) { 4273 ++last; 4274 String key = "net.dns" + last; 4275 String value = dns.getHostAddress(); 4276 SystemProperties.set(key, value); 4277 } 4278 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 4279 String key = "net.dns" + i; 4280 SystemProperties.set(key, ""); 4281 } 4282 mNumDnsEntries = last; 4283 } 4284 4285 4286 private void updateCapabilities(NetworkAgentInfo networkAgent, 4287 NetworkCapabilities networkCapabilities) { 4288 // TODO - what else here? Verify still satisfies everybody? 4289 // Check if satisfies somebody new? call callbacks? 4290 synchronized (networkAgent) { 4291 networkAgent.networkCapabilities = networkCapabilities; 4292 } 4293 } 4294 4295 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 4296 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 4297 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 4298 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 4299 networkRequest); 4300 } 4301 } 4302 4303 private void callCallbackForRequest(NetworkRequestInfo nri, 4304 NetworkAgentInfo networkAgent, int notificationType) { 4305 if (nri.messenger == null) return; // Default request has no msgr 4306 Object o; 4307 int a1 = 0; 4308 int a2 = 0; 4309 switch (notificationType) { 4310 case ConnectivityManager.CALLBACK_LOSING: 4311 a1 = 30 * 1000; // TODO - read this from NetworkMonitor 4312 // fall through 4313 case ConnectivityManager.CALLBACK_PRECHECK: 4314 case ConnectivityManager.CALLBACK_AVAILABLE: 4315 case ConnectivityManager.CALLBACK_LOST: 4316 case ConnectivityManager.CALLBACK_CAP_CHANGED: 4317 case ConnectivityManager.CALLBACK_IP_CHANGED: { 4318 o = new NetworkRequest(nri.request); 4319 a2 = networkAgent.network.netId; 4320 break; 4321 } 4322 case ConnectivityManager.CALLBACK_UNAVAIL: 4323 case ConnectivityManager.CALLBACK_RELEASED: { 4324 o = new NetworkRequest(nri.request); 4325 break; 4326 } 4327 default: { 4328 loge("Unknown notificationType " + notificationType); 4329 return; 4330 } 4331 } 4332 Message msg = Message.obtain(); 4333 msg.arg1 = a1; 4334 msg.arg2 = a2; 4335 msg.obj = o; 4336 msg.what = notificationType; 4337 try { 4338 if (VDBG) log("sending notification " + notificationType + " for " + nri.request); 4339 nri.messenger.send(msg); 4340 } catch (RemoteException e) { 4341 // may occur naturally in the race of binder death. 4342 loge("RemoteException caught trying to send a callback msg for " + nri.request); 4343 } 4344 } 4345 4346 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 4347 if (oldNetwork == null) { 4348 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 4349 return; 4350 } 4351 if (DBG) log("handleLingerComplete for " + oldNetwork.name()); 4352 if (DBG) { 4353 if (oldNetwork.networkRequests.size() != 0) { 4354 loge("Dead network still had " + oldNetwork.networkRequests.size() + " requests"); 4355 } 4356 } 4357 oldNetwork.asyncChannel.disconnect(); 4358 } 4359 4360 private void makeDefault(NetworkAgentInfo newNetwork) { 4361 if (VDBG) log("Switching to new default network: " + newNetwork); 4362 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4363 setupDataActivityTracking(newNetwork); 4364 try { 4365 mNetd.setDefaultNetId(newNetwork.network.netId); 4366 } catch (Exception e) { 4367 loge("Exception setting default network :" + e); 4368 } 4369 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 4370 updateTcpBufferSizes(newNetwork); 4371 } 4372 4373 private void handleConnectionValidated(NetworkAgentInfo newNetwork) { 4374 if (newNetwork == null) { 4375 loge("Unknown NetworkAgentInfo in handleConnectionValidated"); 4376 return; 4377 } 4378 boolean keep = newNetwork.isVPN(); 4379 boolean isNewDefault = false; 4380 if (DBG) log("handleConnectionValidated for "+newNetwork.name()); 4381 // check if any NetworkRequest wants this NetworkAgent 4382 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 4383 if (VDBG) log(" new Network has: " + newNetwork.networkCapabilities); 4384 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 4385 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 4386 if (newNetwork == currentNetwork) { 4387 if (VDBG) log("Network " + newNetwork.name() + " was already satisfying" + 4388 " request " + nri.request.requestId + ". No change."); 4389 keep = true; 4390 continue; 4391 } 4392 4393 // check if it satisfies the NetworkCapabilities 4394 if (VDBG) log(" checking if request is satisfied: " + nri.request); 4395 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 4396 newNetwork.networkCapabilities)) { 4397 // next check if it's better than any current network we're using for 4398 // this request 4399 if (VDBG) { 4400 log("currentScore = " + 4401 (currentNetwork != null ? currentNetwork.currentScore : 0) + 4402 ", newScore = " + newNetwork.currentScore); 4403 } 4404 if (currentNetwork == null || 4405 currentNetwork.currentScore < newNetwork.currentScore) { 4406 if (currentNetwork != null) { 4407 if (VDBG) log(" accepting network in place of " + currentNetwork.name()); 4408 currentNetwork.networkRequests.remove(nri.request.requestId); 4409 currentNetwork.networkLingered.add(nri.request); 4410 affectedNetworks.add(currentNetwork); 4411 } else { 4412 if (VDBG) log(" accepting network in place of null"); 4413 } 4414 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 4415 newNetwork.addRequest(nri.request); 4416 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 4417 mLegacyTypeTracker.add(nri.request.legacyType, newNetwork); 4418 } 4419 keep = true; 4420 // TODO - this could get expensive if we have alot of requests for this 4421 // network. Think about if there is a way to reduce this. Push 4422 // netid->request mapping to each factory? 4423 sendUpdatedScoreToFactories(nri.request, newNetwork.currentScore); 4424 if (mDefaultRequest.requestId == nri.request.requestId) { 4425 isNewDefault = true; 4426 updateActiveDefaultNetwork(newNetwork); 4427 if (newNetwork.linkProperties != null) { 4428 updateTcpBufferSizes(newNetwork); 4429 setDefaultDnsSystemProperties( 4430 newNetwork.linkProperties.getDnsServers()); 4431 } else { 4432 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 4433 } 4434 // Maintain the illusion: since the legacy API only 4435 // understands one network at a time, we must pretend 4436 // that the current default network disconnected before 4437 // the new one connected. 4438 if (currentNetwork != null) { 4439 mLegacyTypeTracker.remove(currentNetwork.networkInfo.getType(), 4440 currentNetwork); 4441 } 4442 mDefaultInetConditionPublished = 100; 4443 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 4444 } 4445 } 4446 } 4447 } 4448 for (NetworkAgentInfo nai : affectedNetworks) { 4449 boolean teardown = !nai.isVPN(); 4450 for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { 4451 NetworkRequest nr = nai.networkRequests.valueAt(i); 4452 try { 4453 if (mNetworkRequests.get(nr).isRequest) { 4454 teardown = false; 4455 } 4456 } catch (Exception e) { 4457 loge("Request " + nr + " not found in mNetworkRequests."); 4458 loge(" it came from request list of " + nai.name()); 4459 } 4460 } 4461 if (teardown) { 4462 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 4463 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 4464 } else { 4465 // not going to linger, so kill the list of linger networks.. only 4466 // notify them of linger if it happens as the result of gaining another, 4467 // but if they transition and old network stays up, don't tell them of linger 4468 // or very delayed loss 4469 nai.networkLingered.clear(); 4470 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 4471 } 4472 } 4473 if (keep) { 4474 if (isNewDefault) { 4475 makeDefault(newNetwork); 4476 synchronized (ConnectivityService.this) { 4477 // have a new default network, release the transition wakelock in 4478 // a second if it's held. The second pause is to allow apps 4479 // to reconnect over the new network 4480 if (mNetTransitionWakeLock.isHeld()) { 4481 mHandler.sendMessageDelayed(mHandler.obtainMessage( 4482 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 4483 mNetTransitionWakeLockSerialNumber, 0), 4484 1000); 4485 } 4486 } 4487 } 4488 4489 // Notify battery stats service about this network, both the normal 4490 // interface and any stacked links. 4491 try { 4492 final IBatteryStats bs = BatteryStatsService.getService(); 4493 final int type = newNetwork.networkInfo.getType(); 4494 4495 final String baseIface = newNetwork.linkProperties.getInterfaceName(); 4496 bs.noteNetworkInterfaceType(baseIface, type); 4497 for (LinkProperties stacked : newNetwork.linkProperties.getStackedLinks()) { 4498 final String stackedIface = stacked.getInterfaceName(); 4499 bs.noteNetworkInterfaceType(stackedIface, type); 4500 NetworkStatsFactory.noteStackedIface(stackedIface, baseIface); 4501 } 4502 } catch (RemoteException ignored) { 4503 } 4504 4505 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 4506 } else { 4507 if (DBG && newNetwork.networkRequests.size() != 0) { 4508 loge("tearing down network with live requests:"); 4509 for (int i=0; i < newNetwork.networkRequests.size(); i++) { 4510 loge(" " + newNetwork.networkRequests.valueAt(i)); 4511 } 4512 } 4513 if (VDBG) log("Validated network turns out to be unwanted. Tear it down."); 4514 newNetwork.asyncChannel.disconnect(); 4515 } 4516 } 4517 4518 4519 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 4520 NetworkInfo.State state = newInfo.getState(); 4521 NetworkInfo oldInfo = null; 4522 synchronized (networkAgent) { 4523 oldInfo = networkAgent.networkInfo; 4524 networkAgent.networkInfo = newInfo; 4525 } 4526 if (networkAgent.isVPN() && mLockdownTracker != null) { 4527 mLockdownTracker.onVpnStateChanged(newInfo); 4528 } 4529 4530 if (oldInfo != null && oldInfo.getState() == state) { 4531 if (VDBG) log("ignoring duplicate network state non-change"); 4532 return; 4533 } 4534 if (DBG) { 4535 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 4536 (oldInfo == null ? "null" : oldInfo.getState()) + 4537 " to " + state); 4538 } 4539 4540 if (state == NetworkInfo.State.CONNECTED && !networkAgent.created) { 4541 try { 4542 // This should never fail. Specifying an already in use NetID will cause failure. 4543 if (networkAgent.isVPN()) { 4544 mNetd.createVirtualNetwork(networkAgent.network.netId, 4545 !networkAgent.linkProperties.getDnsServers().isEmpty(), 4546 (networkAgent.networkMisc == null || 4547 !networkAgent.networkMisc.allowBypass)); 4548 } else { 4549 mNetd.createPhysicalNetwork(networkAgent.network.netId); 4550 } 4551 } catch (Exception e) { 4552 loge("Error creating network " + networkAgent.network.netId + ": " 4553 + e.getMessage()); 4554 return; 4555 } 4556 networkAgent.created = true; 4557 updateLinkProperties(networkAgent, null); 4558 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 4559 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 4560 if (networkAgent.isVPN()) { 4561 // Temporarily disable the default proxy (not global). 4562 synchronized (mProxyLock) { 4563 if (!mDefaultProxyDisabled) { 4564 mDefaultProxyDisabled = true; 4565 if (mGlobalProxy == null && mDefaultProxy != null) { 4566 sendProxyBroadcast(null); 4567 } 4568 } 4569 } 4570 // TODO: support proxy per network. 4571 } 4572 // Make default network if we have no default. Any network is better than no network. 4573 if (mNetworkForRequestId.get(mDefaultRequest.requestId) == null && 4574 networkAgent.isVPN() == false && 4575 mDefaultRequest.networkCapabilities.satisfiedByNetworkCapabilities( 4576 networkAgent.networkCapabilities)) { 4577 makeDefault(networkAgent); 4578 } 4579 } else if (state == NetworkInfo.State.DISCONNECTED || 4580 state == NetworkInfo.State.SUSPENDED) { 4581 networkAgent.asyncChannel.disconnect(); 4582 if (networkAgent.isVPN()) { 4583 synchronized (mProxyLock) { 4584 if (mDefaultProxyDisabled) { 4585 mDefaultProxyDisabled = false; 4586 if (mGlobalProxy == null && mDefaultProxy != null) { 4587 sendProxyBroadcast(mDefaultProxy); 4588 } 4589 } 4590 } 4591 } 4592 } 4593 } 4594 4595 private void updateNetworkScore(NetworkAgentInfo nai, int score) { 4596 if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); 4597 4598 nai.currentScore = score; 4599 4600 // TODO - This will not do the right thing if this network is lowering 4601 // its score and has requests that can be served by other 4602 // currently-active networks, or if the network is increasing its 4603 // score and other networks have requests that can be better served 4604 // by this network. 4605 // 4606 // Really we want to see if any of our requests migrate to other 4607 // active/lingered networks and if any other requests migrate to us (depending 4608 // on increasing/decreasing currentScore. That's a bit of work and probably our 4609 // score checking/network allocation code needs to be modularized so we can understand 4610 // (see handleConnectionValided for an example). 4611 // 4612 // As a first order approx, lets just advertise the new score to factories. If 4613 // somebody can beat it they will nominate a network and our normal net replacement 4614 // code will fire. 4615 for (int i = 0; i < nai.networkRequests.size(); i++) { 4616 NetworkRequest nr = nai.networkRequests.valueAt(i); 4617 sendUpdatedScoreToFactories(nr, score); 4618 } 4619 } 4620 4621 // notify only this one new request of the current state 4622 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 4623 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 4624 // TODO - read state from monitor to decide what to send. 4625// if (nai.networkMonitor.isLingering()) { 4626// notifyType = NetworkCallbacks.LOSING; 4627// } else if (nai.networkMonitor.isEvaluating()) { 4628// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 4629// } 4630 callCallbackForRequest(nri, nai, notifyType); 4631 } 4632 4633 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 4634 // The NetworkInfo we actually send out has no bearing on the real 4635 // state of affairs. For example, if the default connection is mobile, 4636 // and a request for HIPRI has just gone away, we need to pretend that 4637 // HIPRI has just disconnected. So we need to set the type to HIPRI and 4638 // the state to DISCONNECTED, even though the network is of type MOBILE 4639 // and is still connected. 4640 NetworkInfo info = new NetworkInfo(nai.networkInfo); 4641 info.setType(type); 4642 if (connected) { 4643 info.setDetailedState(DetailedState.CONNECTED, null, info.getExtraInfo()); 4644 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 4645 } else { 4646 info.setDetailedState(DetailedState.DISCONNECTED, null, info.getExtraInfo()); 4647 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 4648 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 4649 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 4650 if (info.isFailover()) { 4651 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 4652 nai.networkInfo.setFailover(false); 4653 } 4654 if (info.getReason() != null) { 4655 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 4656 } 4657 if (info.getExtraInfo() != null) { 4658 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 4659 } 4660 NetworkAgentInfo newDefaultAgent = null; 4661 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 4662 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 4663 if (newDefaultAgent != null) { 4664 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 4665 newDefaultAgent.networkInfo); 4666 } else { 4667 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 4668 } 4669 } 4670 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 4671 mDefaultInetConditionPublished); 4672 final Intent immediateIntent = new Intent(intent); 4673 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 4674 sendStickyBroadcast(immediateIntent); 4675 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 4676 if (newDefaultAgent != null) { 4677 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 4678 getConnectivityChangeDelay()); 4679 } 4680 } 4681 } 4682 4683 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 4684 if (VDBG) log("notifyType " + notifyType + " for " + networkAgent.name()); 4685 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 4686 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 4687 NetworkRequestInfo nri = mNetworkRequests.get(nr); 4688 if (VDBG) log(" sending notification for " + nr); 4689 callCallbackForRequest(nri, networkAgent, notifyType); 4690 } 4691 } 4692 4693 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 4694 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4695 if (nai != null) { 4696 synchronized (nai) { 4697 return new LinkProperties(nai.linkProperties); 4698 } 4699 } 4700 return new LinkProperties(); 4701 } 4702 4703 private NetworkInfo getNetworkInfoForType(int networkType) { 4704 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 4705 return null; 4706 4707 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4708 if (nai != null) { 4709 NetworkInfo result = new NetworkInfo(nai.networkInfo); 4710 result.setType(networkType); 4711 return result; 4712 } else { 4713 return new NetworkInfo(networkType, 0, "Unknown", ""); 4714 } 4715 } 4716 4717 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 4718 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4719 if (nai != null) { 4720 synchronized (nai) { 4721 return new NetworkCapabilities(nai.networkCapabilities); 4722 } 4723 } 4724 return new NetworkCapabilities(); 4725 } 4726 4727 @Override 4728 public boolean addVpnAddress(String address, int prefixLength) { 4729 throwIfLockdownEnabled(); 4730 int user = UserHandle.getUserId(Binder.getCallingUid()); 4731 synchronized (mVpns) { 4732 return mVpns.get(user).addAddress(address, prefixLength); 4733 } 4734 } 4735 4736 @Override 4737 public boolean removeVpnAddress(String address, int prefixLength) { 4738 throwIfLockdownEnabled(); 4739 int user = UserHandle.getUserId(Binder.getCallingUid()); 4740 synchronized (mVpns) { 4741 return mVpns.get(user).removeAddress(address, prefixLength); 4742 } 4743 } 4744} 4745