ConnectivityService.java revision ab14df37ab9fcc63affb877833ee7869e1450bb2
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.net.LegacyVpnInfo; 123import com.android.internal.net.VpnConfig; 124import com.android.internal.net.VpnProfile; 125import com.android.internal.telephony.DctConstants; 126import com.android.internal.telephony.Phone; 127import com.android.internal.telephony.PhoneConstants; 128import com.android.internal.telephony.TelephonyIntents; 129import com.android.internal.util.AsyncChannel; 130import com.android.internal.util.IndentingPrintWriter; 131import com.android.internal.util.XmlUtils; 132import com.android.server.am.BatteryStatsService; 133import com.android.server.connectivity.DataConnectionStats; 134import com.android.server.connectivity.Nat464Xlat; 135import com.android.server.connectivity.NetworkAgentInfo; 136import com.android.server.connectivity.NetworkMonitor; 137import com.android.server.connectivity.PacManager; 138import com.android.server.connectivity.Tethering; 139import com.android.server.connectivity.Vpn; 140import com.android.server.net.BaseNetworkObserver; 141import com.android.server.net.LockdownVpnTracker; 142import com.google.android.collect.Lists; 143import com.google.android.collect.Sets; 144 145import dalvik.system.DexClassLoader; 146 147import org.xmlpull.v1.XmlPullParser; 148import org.xmlpull.v1.XmlPullParserException; 149 150import java.io.File; 151import java.io.FileDescriptor; 152import java.io.FileNotFoundException; 153import java.io.FileReader; 154import java.io.IOException; 155import java.io.PrintWriter; 156import java.lang.reflect.Constructor; 157import java.net.HttpURLConnection; 158import java.net.Inet4Address; 159import java.net.Inet6Address; 160import java.net.InetAddress; 161import java.net.URL; 162import java.net.UnknownHostException; 163import java.util.ArrayList; 164import java.util.Arrays; 165import java.util.Collection; 166import java.util.GregorianCalendar; 167import java.util.HashMap; 168import java.util.HashSet; 169import java.util.List; 170import java.util.Map; 171import java.util.Random; 172import java.util.concurrent.atomic.AtomicBoolean; 173import java.util.concurrent.atomic.AtomicInteger; 174 175import javax.net.ssl.HostnameVerifier; 176import javax.net.ssl.HttpsURLConnection; 177import javax.net.ssl.SSLSession; 178 179/** 180 * @hide 181 */ 182public class ConnectivityService extends IConnectivityManager.Stub { 183 private static final String TAG = "ConnectivityService"; 184 185 private static final boolean DBG = true; 186 private static final boolean VDBG = true; // STOPSHIP 187 188 // network sampling debugging 189 private static final boolean SAMPLE_DBG = false; 190 191 private static final boolean LOGD_RULES = false; 192 193 // TODO: create better separation between radio types and network types 194 195 // how long to wait before switching back to a radio's default network 196 private static final int RESTORE_DEFAULT_NETWORK_DELAY = 1 * 60 * 1000; 197 // system property that can override the above value 198 private static final String NETWORK_RESTORE_DELAY_PROP_NAME = 199 "android.telephony.apn-restore"; 200 201 // Default value if FAIL_FAST_TIME_MS is not set 202 private static final int DEFAULT_FAIL_FAST_TIME_MS = 1 * 60 * 1000; 203 // system property that can override DEFAULT_FAIL_FAST_TIME_MS 204 private static final String FAIL_FAST_TIME_MS = 205 "persist.radio.fail_fast_time_ms"; 206 207 private static final String ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED = 208 "android.net.ConnectivityService.action.PKT_CNT_SAMPLE_INTERVAL_ELAPSED"; 209 210 private static final int SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE = 0; 211 212 private PendingIntent mSampleIntervalElapsedIntent; 213 214 // Set network sampling interval at 12 minutes, this way, even if the timers get 215 // aggregated, it will fire at around 15 minutes, which should allow us to 216 // aggregate this timer with other timers (specially the socket keep alive timers) 217 private static final int DEFAULT_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 12 * 60); 218 219 // start network sampling a minute after booting ... 220 private static final int DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 60); 221 222 AlarmManager mAlarmManager; 223 224 private Tethering mTethering; 225 226 private KeyStore mKeyStore; 227 228 @GuardedBy("mVpns") 229 private final SparseArray<Vpn> mVpns = new SparseArray<Vpn>(); 230 231 private boolean mLockdownEnabled; 232 private LockdownVpnTracker mLockdownTracker; 233 234 private Nat464Xlat mClat; 235 236 /** Lock around {@link #mUidRules} and {@link #mMeteredIfaces}. */ 237 private Object mRulesLock = new Object(); 238 /** Currently active network rules by UID. */ 239 private SparseIntArray mUidRules = new SparseIntArray(); 240 /** Set of ifaces that are costly. */ 241 private HashSet<String> mMeteredIfaces = Sets.newHashSet(); 242 243 /** 244 * Sometimes we want to refer to the individual network state 245 * trackers separately, and sometimes we just want to treat them 246 * abstractly. 247 */ 248 private NetworkStateTracker mNetTrackers[]; 249 250 private Context mContext; 251 private int mNetworkPreference; 252 private int mActiveDefaultNetwork = -1; 253 // 0 is full bad, 100 is full good 254 private int mDefaultInetCondition = 0; 255 private int mDefaultInetConditionPublished = 0; 256 private boolean mInetConditionChangeInFlight = false; 257 private int mDefaultConnectionSequence = 0; 258 259 private Object mDnsLock = new Object(); 260 private int mNumDnsEntries; 261 262 private boolean mTestMode; 263 private static ConnectivityService sServiceInstance; 264 265 private INetworkManagementService mNetd; 266 private INetworkPolicyManager mPolicyManager; 267 268 private static final int ENABLED = 1; 269 private static final int DISABLED = 0; 270 271 /** 272 * used internally to change our mobile data enabled flag 273 */ 274 private static final int EVENT_CHANGE_MOBILE_DATA_ENABLED = 2; 275 276 /** 277 * used internally to synchronize inet condition reports 278 * arg1 = networkType 279 * arg2 = condition (0 bad, 100 good) 280 */ 281 private static final int EVENT_INET_CONDITION_CHANGE = 4; 282 283 /** 284 * used internally to mark the end of inet condition hold periods 285 * arg1 = networkType 286 */ 287 private static final int EVENT_INET_CONDITION_HOLD_END = 5; 288 289 /** 290 * used internally to clear a wakelock when transitioning 291 * from one net to another. Clear happens when we get a new 292 * network - EVENT_EXPIRE_NET_TRANSITION_WAKELOCK happens 293 * after a timeout if no network is found (typically 1 min). 294 */ 295 private static final int EVENT_CLEAR_NET_TRANSITION_WAKELOCK = 8; 296 297 /** 298 * used internally to reload global proxy settings 299 */ 300 private static final int EVENT_APPLY_GLOBAL_HTTP_PROXY = 9; 301 302 /** 303 * used internally to set external dependency met/unmet 304 * arg1 = ENABLED (met) or DISABLED (unmet) 305 * arg2 = NetworkType 306 */ 307 private static final int EVENT_SET_DEPENDENCY_MET = 10; 308 309 /** 310 * used internally to send a sticky broadcast delayed. 311 */ 312 private static final int EVENT_SEND_STICKY_BROADCAST_INTENT = 11; 313 314 /** 315 * Used internally to 316 * {@link NetworkStateTracker#setPolicyDataEnable(boolean)}. 317 */ 318 private static final int EVENT_SET_POLICY_DATA_ENABLE = 12; 319 320 /** 321 * Used internally to disable fail fast of mobile data 322 */ 323 private static final int EVENT_ENABLE_FAIL_FAST_MOBILE_DATA = 14; 324 325 /** 326 * used internally to indicate that data sampling interval is up 327 */ 328 private static final int EVENT_SAMPLE_INTERVAL_ELAPSED = 15; 329 330 /** 331 * PAC manager has received new port. 332 */ 333 private static final int EVENT_PROXY_HAS_CHANGED = 16; 334 335 /** 336 * used internally when registering NetworkFactories 337 * obj = NetworkFactoryInfo 338 */ 339 private static final int EVENT_REGISTER_NETWORK_FACTORY = 17; 340 341 /** 342 * used internally when registering NetworkAgents 343 * obj = Messenger 344 */ 345 private static final int EVENT_REGISTER_NETWORK_AGENT = 18; 346 347 /** 348 * used to add a network request 349 * includes a NetworkRequestInfo 350 */ 351 private static final int EVENT_REGISTER_NETWORK_REQUEST = 19; 352 353 /** 354 * indicates a timeout period is over - check if we had a network yet or not 355 * and if not, call the timeout calback (but leave the request live until they 356 * cancel it. 357 * includes a NetworkRequestInfo 358 */ 359 private static final int EVENT_TIMEOUT_NETWORK_REQUEST = 20; 360 361 /** 362 * used to add a network listener - no request 363 * includes a NetworkRequestInfo 364 */ 365 private static final int EVENT_REGISTER_NETWORK_LISTENER = 21; 366 367 /** 368 * used to remove a network request, either a listener or a real request 369 * arg1 = UID of caller 370 * obj = NetworkRequest 371 */ 372 private static final int EVENT_RELEASE_NETWORK_REQUEST = 22; 373 374 /** 375 * used internally when registering NetworkFactories 376 * obj = Messenger 377 */ 378 private static final int EVENT_UNREGISTER_NETWORK_FACTORY = 23; 379 380 /** 381 * used internally to expire a wakelock when transitioning 382 * from one net to another. Expire happens when we fail to find 383 * a new network (typically after 1 minute) - 384 * EVENT_CLEAR_NET_TRANSITION_WAKELOCK happens if we had found 385 * a replacement network. 386 */ 387 private static final int EVENT_EXPIRE_NET_TRANSITION_WAKELOCK = 24; 388 389 390 /** Handler used for internal events. */ 391 final private InternalHandler mHandler; 392 /** Handler used for incoming {@link NetworkStateTracker} events. */ 393 final private NetworkStateTrackerHandler mTrackerHandler; 394 395 private boolean mSystemReady; 396 private Intent mInitialBroadcast; 397 398 private PowerManager.WakeLock mNetTransitionWakeLock; 399 private String mNetTransitionWakeLockCausedBy = ""; 400 private int mNetTransitionWakeLockSerialNumber; 401 private int mNetTransitionWakeLockTimeout; 402 403 private InetAddress mDefaultDns; 404 405 // used in DBG mode to track inet condition reports 406 private static final int INET_CONDITION_LOG_MAX_SIZE = 15; 407 private ArrayList mInetLog; 408 409 // track the current default http proxy - tell the world if we get a new one (real change) 410 private ProxyInfo mDefaultProxy = null; 411 private Object mProxyLock = new Object(); 412 private boolean mDefaultProxyDisabled = false; 413 414 // track the global proxy. 415 private ProxyInfo mGlobalProxy = null; 416 417 private PacManager mPacManager = null; 418 419 private SettingsObserver mSettingsObserver; 420 421 private UserManager mUserManager; 422 423 NetworkConfig[] mNetConfigs; 424 int mNetworksDefined; 425 426 // the set of network types that can only be enabled by system/sig apps 427 List mProtectedNetworks; 428 429 private DataConnectionStats mDataConnectionStats; 430 431 private AtomicInteger mEnableFailFastMobileDataTag = new AtomicInteger(0); 432 433 TelephonyManager mTelephonyManager; 434 435 // sequence number for Networks 436 private final static int MIN_NET_ID = 10; // some reserved marks 437 private final static int MAX_NET_ID = 65535; 438 private int mNextNetId = MIN_NET_ID; 439 440 // sequence number of NetworkRequests 441 private int mNextNetworkRequestId = 1; 442 443 /** 444 * Implements support for the legacy "one network per network type" model. 445 * 446 * We used to have a static array of NetworkStateTrackers, one for each 447 * network type, but that doesn't work any more now that we can have, 448 * for example, more that one wifi network. This class stores all the 449 * NetworkAgentInfo objects that support a given type, but the legacy 450 * API will only see the first one. 451 * 452 * It serves two main purposes: 453 * 454 * 1. Provide information about "the network for a given type" (since this 455 * API only supports one). 456 * 2. Send legacy connectivity change broadcasts. Broadcasts are sent if 457 * the first network for a given type changes, or if the default network 458 * changes. 459 */ 460 private class LegacyTypeTracker { 461 462 private static final boolean DBG = true; 463 private static final boolean VDBG = false; 464 private static final String TAG = "CSLegacyTypeTracker"; 465 466 /** 467 * Array of lists, one per legacy network type (e.g., TYPE_MOBILE_MMS). 468 * Each list holds references to all NetworkAgentInfos that are used to 469 * satisfy requests for that network type. 470 * 471 * This array is built out at startup such that an unsupported network 472 * doesn't get an ArrayList instance, making this a tristate: 473 * unsupported, supported but not active and active. 474 * 475 * The actual lists are populated when we scan the network types that 476 * are supported on this device. 477 */ 478 private ArrayList<NetworkAgentInfo> mTypeLists[]; 479 480 public LegacyTypeTracker() { 481 mTypeLists = (ArrayList<NetworkAgentInfo>[]) 482 new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE + 1]; 483 } 484 485 public void addSupportedType(int type) { 486 if (mTypeLists[type] != null) { 487 throw new IllegalStateException( 488 "legacy list for type " + type + "already initialized"); 489 } 490 mTypeLists[type] = new ArrayList<NetworkAgentInfo>(); 491 } 492 493 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 494 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 495 } 496 497 public boolean isTypeSupported(int type) { 498 return isNetworkTypeValid(type) && mTypeLists[type] != null; 499 } 500 501 public NetworkAgentInfo getNetworkForType(int type) { 502 if (isTypeSupported(type) && !mTypeLists[type].isEmpty()) { 503 return mTypeLists[type].get(0); 504 } else { 505 return null; 506 } 507 } 508 509 private void maybeLogBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 510 if (DBG) { 511 log("Sending " + (connected ? "connected" : "disconnected") + 512 " broadcast for type " + type + " " + nai.name() + 513 " isDefaultNetwork=" + isDefaultNetwork(nai)); 514 } 515 } 516 517 /** Adds the given network to the specified legacy type list. */ 518 public void add(int type, NetworkAgentInfo nai) { 519 if (!isTypeSupported(type)) { 520 return; // Invalid network type. 521 } 522 if (VDBG) log("Adding agent " + nai + " for legacy network type " + type); 523 524 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 525 if (list.contains(nai)) { 526 loge("Attempting to register duplicate agent for type " + type + ": " + nai); 527 return; 528 } 529 530 if (list.isEmpty() || isDefaultNetwork(nai)) { 531 maybeLogBroadcast(nai, true, type); 532 sendLegacyNetworkBroadcast(nai, true, type); 533 } 534 list.add(nai); 535 } 536 537 /** Removes the given network from the specified legacy type list. */ 538 public void remove(int type, NetworkAgentInfo nai) { 539 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 540 if (list == null || list.isEmpty()) { 541 return; 542 } 543 544 boolean wasFirstNetwork = list.get(0).equals(nai); 545 546 if (!list.remove(nai)) { 547 return; 548 } 549 550 if (wasFirstNetwork || isDefaultNetwork(nai)) { 551 maybeLogBroadcast(nai, false, type); 552 sendLegacyNetworkBroadcast(nai, false, type); 553 } 554 555 if (!list.isEmpty() && wasFirstNetwork) { 556 if (DBG) log("Other network available for type " + type + 557 ", sending connected broadcast"); 558 maybeLogBroadcast(list.get(0), false, type); 559 sendLegacyNetworkBroadcast(list.get(0), false, type); 560 } 561 } 562 563 /** Removes the given network from all legacy type lists. */ 564 public void remove(NetworkAgentInfo nai) { 565 if (VDBG) log("Removing agent " + nai); 566 for (int type = 0; type < mTypeLists.length; type++) { 567 remove(type, nai); 568 } 569 } 570 571 private String naiToString(NetworkAgentInfo nai) { 572 String name = (nai != null) ? nai.name() : "null"; 573 String state = (nai.networkInfo != null) ? 574 nai.networkInfo.getState() + "/" + nai.networkInfo.getDetailedState() : 575 "???/???"; 576 return name + " " + state; 577 } 578 579 public void dump(IndentingPrintWriter pw) { 580 for (int type = 0; type < mTypeLists.length; type++) { 581 if (mTypeLists[type] == null) continue; 582 pw.print(type + " "); 583 pw.increaseIndent(); 584 if (mTypeLists[type].size() == 0) pw.println("none"); 585 for (NetworkAgentInfo nai : mTypeLists[type]) { 586 pw.println(naiToString(nai)); 587 } 588 pw.decreaseIndent(); 589 } 590 } 591 592 // This class needs its own log method because it has a different TAG. 593 private void log(String s) { 594 Slog.d(TAG, s); 595 } 596 597 } 598 private LegacyTypeTracker mLegacyTypeTracker = new LegacyTypeTracker(); 599 600 public ConnectivityService(Context context, INetworkManagementService netManager, 601 INetworkStatsService statsService, INetworkPolicyManager policyManager) { 602 if (DBG) log("ConnectivityService starting up"); 603 604 NetworkCapabilities netCap = new NetworkCapabilities(); 605 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 606 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 607 mDefaultRequest = new NetworkRequest(netCap, TYPE_NONE, nextNetworkRequestId()); 608 NetworkRequestInfo nri = new NetworkRequestInfo(null, mDefaultRequest, new Binder(), 609 NetworkRequestInfo.REQUEST); 610 mNetworkRequests.put(mDefaultRequest, nri); 611 612 HandlerThread handlerThread = new HandlerThread("ConnectivityServiceThread"); 613 handlerThread.start(); 614 mHandler = new InternalHandler(handlerThread.getLooper()); 615 mTrackerHandler = new NetworkStateTrackerHandler(handlerThread.getLooper()); 616 617 // setup our unique device name 618 if (TextUtils.isEmpty(SystemProperties.get("net.hostname"))) { 619 String id = Settings.Secure.getString(context.getContentResolver(), 620 Settings.Secure.ANDROID_ID); 621 if (id != null && id.length() > 0) { 622 String name = new String("android-").concat(id); 623 SystemProperties.set("net.hostname", name); 624 } 625 } 626 627 // read our default dns server ip 628 String dns = Settings.Global.getString(context.getContentResolver(), 629 Settings.Global.DEFAULT_DNS_SERVER); 630 if (dns == null || dns.length() == 0) { 631 dns = context.getResources().getString( 632 com.android.internal.R.string.config_default_dns_server); 633 } 634 try { 635 mDefaultDns = NetworkUtils.numericToInetAddress(dns); 636 } catch (IllegalArgumentException e) { 637 loge("Error setting defaultDns using " + dns); 638 } 639 640 mContext = checkNotNull(context, "missing Context"); 641 mNetd = checkNotNull(netManager, "missing INetworkManagementService"); 642 mPolicyManager = checkNotNull(policyManager, "missing INetworkPolicyManager"); 643 mKeyStore = KeyStore.getInstance(); 644 mTelephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 645 646 try { 647 mPolicyManager.registerListener(mPolicyListener); 648 } catch (RemoteException e) { 649 // ouch, no rules updates means some processes may never get network 650 loge("unable to register INetworkPolicyListener" + e.toString()); 651 } 652 653 final PowerManager powerManager = (PowerManager) context.getSystemService( 654 Context.POWER_SERVICE); 655 mNetTransitionWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); 656 mNetTransitionWakeLockTimeout = mContext.getResources().getInteger( 657 com.android.internal.R.integer.config_networkTransitionTimeout); 658 659 mNetTrackers = new NetworkStateTracker[ 660 ConnectivityManager.MAX_NETWORK_TYPE+1]; 661 662 mNetConfigs = new NetworkConfig[ConnectivityManager.MAX_NETWORK_TYPE+1]; 663 664 // TODO: What is the "correct" way to do determine if this is a wifi only device? 665 boolean wifiOnly = SystemProperties.getBoolean("ro.radio.noril", false); 666 log("wifiOnly=" + wifiOnly); 667 String[] naStrings = context.getResources().getStringArray( 668 com.android.internal.R.array.networkAttributes); 669 for (String naString : naStrings) { 670 try { 671 NetworkConfig n = new NetworkConfig(naString); 672 if (VDBG) log("naString=" + naString + " config=" + n); 673 if (n.type > ConnectivityManager.MAX_NETWORK_TYPE) { 674 loge("Error in networkAttributes - ignoring attempt to define type " + 675 n.type); 676 continue; 677 } 678 if (wifiOnly && ConnectivityManager.isNetworkTypeMobile(n.type)) { 679 log("networkAttributes - ignoring mobile as this dev is wifiOnly " + 680 n.type); 681 continue; 682 } 683 if (mNetConfigs[n.type] != null) { 684 loge("Error in networkAttributes - ignoring attempt to redefine type " + 685 n.type); 686 continue; 687 } 688 mLegacyTypeTracker.addSupportedType(n.type); 689 690 mNetConfigs[n.type] = n; 691 mNetworksDefined++; 692 } catch(Exception e) { 693 // ignore it - leave the entry null 694 } 695 } 696 if (VDBG) log("mNetworksDefined=" + mNetworksDefined); 697 698 mProtectedNetworks = new ArrayList<Integer>(); 699 int[] protectedNetworks = context.getResources().getIntArray( 700 com.android.internal.R.array.config_protectedNetworks); 701 for (int p : protectedNetworks) { 702 if ((mNetConfigs[p] != null) && (mProtectedNetworks.contains(p) == false)) { 703 mProtectedNetworks.add(p); 704 } else { 705 if (DBG) loge("Ignoring protectedNetwork " + p); 706 } 707 } 708 709 mTestMode = SystemProperties.get("cm.test.mode").equals("true") 710 && SystemProperties.get("ro.build.type").equals("eng"); 711 712 mTethering = new Tethering(mContext, mNetd, statsService, mHandler.getLooper()); 713 714 //set up the listener for user state for creating user VPNs 715 IntentFilter intentFilter = new IntentFilter(); 716 intentFilter.addAction(Intent.ACTION_USER_STARTING); 717 intentFilter.addAction(Intent.ACTION_USER_STOPPING); 718 mContext.registerReceiverAsUser( 719 mUserIntentReceiver, UserHandle.ALL, intentFilter, null, null); 720 mClat = new Nat464Xlat(mContext, mNetd, this, mTrackerHandler); 721 722 try { 723 mNetd.registerObserver(mTethering); 724 mNetd.registerObserver(mDataActivityObserver); 725 mNetd.registerObserver(mClat); 726 } catch (RemoteException e) { 727 loge("Error registering observer :" + e); 728 } 729 730 if (DBG) { 731 mInetLog = new ArrayList(); 732 } 733 734 mSettingsObserver = new SettingsObserver(mHandler, EVENT_APPLY_GLOBAL_HTTP_PROXY); 735 mSettingsObserver.observe(mContext); 736 737 mDataConnectionStats = new DataConnectionStats(mContext); 738 mDataConnectionStats.startMonitoring(); 739 740 mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE); 741 742 IntentFilter filter = new IntentFilter(); 743 filter.addAction(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 744 mContext.registerReceiver( 745 new BroadcastReceiver() { 746 @Override 747 public void onReceive(Context context, Intent intent) { 748 String action = intent.getAction(); 749 if (action.equals(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED)) { 750 mHandler.sendMessage(mHandler.obtainMessage 751 (EVENT_SAMPLE_INTERVAL_ELAPSED)); 752 } 753 } 754 }, 755 new IntentFilter(filter)); 756 757 mPacManager = new PacManager(mContext, mHandler, EVENT_PROXY_HAS_CHANGED); 758 759 filter = new IntentFilter(); 760 filter.addAction(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 761 mContext.registerReceiver(mProvisioningReceiver, filter); 762 763 mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); 764 } 765 766 private synchronized int nextNetworkRequestId() { 767 return mNextNetworkRequestId++; 768 } 769 770 private synchronized int nextNetId() { 771 int netId = mNextNetId; 772 if (++mNextNetId > MAX_NET_ID) mNextNetId = MIN_NET_ID; 773 return netId; 774 } 775 776 private int getConnectivityChangeDelay() { 777 final ContentResolver cr = mContext.getContentResolver(); 778 779 /** Check system properties for the default value then use secure settings value, if any. */ 780 int defaultDelay = SystemProperties.getInt( 781 "conn." + Settings.Global.CONNECTIVITY_CHANGE_DELAY, 782 ConnectivityManager.CONNECTIVITY_CHANGE_DELAY_DEFAULT); 783 return Settings.Global.getInt(cr, Settings.Global.CONNECTIVITY_CHANGE_DELAY, 784 defaultDelay); 785 } 786 787 private boolean teardown(NetworkStateTracker netTracker) { 788 if (netTracker.teardown()) { 789 netTracker.setTeardownRequested(true); 790 return true; 791 } else { 792 return false; 793 } 794 } 795 796 /** 797 * Check if UID should be blocked from using the network represented by the 798 * given {@link NetworkStateTracker}. 799 */ 800 private boolean isNetworkBlocked(int networkType, int uid) { 801 final boolean networkCostly; 802 final int uidRules; 803 804 LinkProperties lp = getLinkPropertiesForType(networkType); 805 final String iface = (lp == null ? "" : lp.getInterfaceName()); 806 synchronized (mRulesLock) { 807 networkCostly = mMeteredIfaces.contains(iface); 808 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 809 } 810 811 if (networkCostly && (uidRules & RULE_REJECT_METERED) != 0) { 812 return true; 813 } 814 815 // no restrictive rules; network is visible 816 return false; 817 } 818 819 /** 820 * Return a filtered {@link NetworkInfo}, potentially marked 821 * {@link DetailedState#BLOCKED} based on 822 * {@link #isNetworkBlocked}. 823 */ 824 private NetworkInfo getFilteredNetworkInfo(int networkType, int uid) { 825 NetworkInfo info = getNetworkInfoForType(networkType); 826 return getFilteredNetworkInfo(info, networkType, uid); 827 } 828 829 private NetworkInfo getFilteredNetworkInfo(NetworkInfo info, int networkType, int uid) { 830 if (isNetworkBlocked(networkType, uid)) { 831 // network is blocked; clone and override state 832 info = new NetworkInfo(info); 833 info.setDetailedState(DetailedState.BLOCKED, null, null); 834 if (VDBG) log("returning Blocked NetworkInfo"); 835 } 836 if (mLockdownTracker != null) { 837 info = mLockdownTracker.augmentNetworkInfo(info); 838 if (VDBG) log("returning Locked NetworkInfo"); 839 } 840 return info; 841 } 842 843 /** 844 * Return NetworkInfo for the active (i.e., connected) network interface. 845 * It is assumed that at most one network is active at a time. If more 846 * than one is active, it is indeterminate which will be returned. 847 * @return the info for the active network, or {@code null} if none is 848 * active 849 */ 850 @Override 851 public NetworkInfo getActiveNetworkInfo() { 852 enforceAccessPermission(); 853 final int uid = Binder.getCallingUid(); 854 return getNetworkInfo(mActiveDefaultNetwork, uid); 855 } 856 857 // only called when the default request is satisfied 858 private void updateActiveDefaultNetwork(NetworkAgentInfo nai) { 859 if (nai != null) { 860 mActiveDefaultNetwork = nai.networkInfo.getType(); 861 } else { 862 mActiveDefaultNetwork = TYPE_NONE; 863 } 864 } 865 866 /** 867 * Find the first Provisioning network. 868 * 869 * @return NetworkInfo or null if none. 870 */ 871 private NetworkInfo getProvisioningNetworkInfo() { 872 enforceAccessPermission(); 873 874 // Find the first Provisioning Network 875 NetworkInfo provNi = null; 876 for (NetworkInfo ni : getAllNetworkInfo()) { 877 if (ni.isConnectedToProvisioningNetwork()) { 878 provNi = ni; 879 break; 880 } 881 } 882 if (DBG) log("getProvisioningNetworkInfo: X provNi=" + provNi); 883 return provNi; 884 } 885 886 /** 887 * Find the first Provisioning network or the ActiveDefaultNetwork 888 * if there is no Provisioning network 889 * 890 * @return NetworkInfo or null if none. 891 */ 892 @Override 893 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 894 enforceAccessPermission(); 895 896 NetworkInfo provNi = getProvisioningNetworkInfo(); 897 if (provNi == null) { 898 final int uid = Binder.getCallingUid(); 899 provNi = getNetworkInfo(mActiveDefaultNetwork, uid); 900 } 901 if (DBG) log("getProvisioningOrActiveNetworkInfo: X provNi=" + provNi); 902 return provNi; 903 } 904 905 public NetworkInfo getActiveNetworkInfoUnfiltered() { 906 enforceAccessPermission(); 907 if (isNetworkTypeValid(mActiveDefaultNetwork)) { 908 return getNetworkInfoForType(mActiveDefaultNetwork); 909 } 910 return null; 911 } 912 913 @Override 914 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 915 enforceConnectivityInternalPermission(); 916 return getNetworkInfo(mActiveDefaultNetwork, uid); 917 } 918 919 @Override 920 public NetworkInfo getNetworkInfo(int networkType) { 921 enforceAccessPermission(); 922 final int uid = Binder.getCallingUid(); 923 return getNetworkInfo(networkType, uid); 924 } 925 926 private NetworkInfo getNetworkInfo(int networkType, int uid) { 927 NetworkInfo info = null; 928 if (isNetworkTypeValid(networkType)) { 929 if (getNetworkInfoForType(networkType) != null) { 930 info = getFilteredNetworkInfo(networkType, uid); 931 } 932 } 933 return info; 934 } 935 936 @Override 937 public NetworkInfo getNetworkInfoForNetwork(Network network) { 938 enforceAccessPermission(); 939 if (network == null) return null; 940 941 final int uid = Binder.getCallingUid(); 942 NetworkAgentInfo nai = null; 943 synchronized (mNetworkForNetId) { 944 nai = mNetworkForNetId.get(network.netId); 945 } 946 if (nai == null) return null; 947 synchronized (nai) { 948 if (nai.networkInfo == null) return null; 949 950 return getFilteredNetworkInfo(nai.networkInfo, nai.networkInfo.getType(), uid); 951 } 952 } 953 954 @Override 955 public NetworkInfo[] getAllNetworkInfo() { 956 enforceAccessPermission(); 957 final int uid = Binder.getCallingUid(); 958 final ArrayList<NetworkInfo> result = Lists.newArrayList(); 959 synchronized (mRulesLock) { 960 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 961 networkType++) { 962 if (getNetworkInfoForType(networkType) != null) { 963 result.add(getFilteredNetworkInfo(networkType, uid)); 964 } 965 } 966 } 967 return result.toArray(new NetworkInfo[result.size()]); 968 } 969 970 @Override 971 public Network[] getAllNetworks() { 972 enforceAccessPermission(); 973 final ArrayList<Network> result = new ArrayList(); 974 synchronized (mNetworkForNetId) { 975 for (int i = 0; i < mNetworkForNetId.size(); i++) { 976 result.add(new Network(mNetworkForNetId.valueAt(i).network)); 977 } 978 } 979 return result.toArray(new Network[result.size()]); 980 } 981 982 @Override 983 public boolean isNetworkSupported(int networkType) { 984 enforceAccessPermission(); 985 return (isNetworkTypeValid(networkType) && (getNetworkInfoForType(networkType) != null)); 986 } 987 988 /** 989 * Return LinkProperties for the active (i.e., connected) default 990 * network interface. It is assumed that at most one default network 991 * is active at a time. If more than one is active, it is indeterminate 992 * which will be returned. 993 * @return the ip properties for the active network, or {@code null} if 994 * none is active 995 */ 996 @Override 997 public LinkProperties getActiveLinkProperties() { 998 return getLinkPropertiesForType(mActiveDefaultNetwork); 999 } 1000 1001 @Override 1002 public LinkProperties getLinkPropertiesForType(int networkType) { 1003 enforceAccessPermission(); 1004 if (isNetworkTypeValid(networkType)) { 1005 return getLinkPropertiesForTypeInternal(networkType); 1006 } 1007 return null; 1008 } 1009 1010 // TODO - this should be ALL networks 1011 @Override 1012 public LinkProperties getLinkProperties(Network network) { 1013 enforceAccessPermission(); 1014 NetworkAgentInfo nai = null; 1015 synchronized (mNetworkForNetId) { 1016 nai = mNetworkForNetId.get(network.netId); 1017 } 1018 1019 if (nai != null) { 1020 synchronized (nai) { 1021 return new LinkProperties(nai.linkProperties); 1022 } 1023 } 1024 return null; 1025 } 1026 1027 @Override 1028 public NetworkCapabilities getNetworkCapabilities(Network network) { 1029 enforceAccessPermission(); 1030 NetworkAgentInfo nai = null; 1031 synchronized (mNetworkForNetId) { 1032 nai = mNetworkForNetId.get(network.netId); 1033 } 1034 if (nai != null) { 1035 synchronized (nai) { 1036 return new NetworkCapabilities(nai.networkCapabilities); 1037 } 1038 } 1039 return null; 1040 } 1041 1042 @Override 1043 public NetworkState[] getAllNetworkState() { 1044 enforceAccessPermission(); 1045 final int uid = Binder.getCallingUid(); 1046 final ArrayList<NetworkState> result = Lists.newArrayList(); 1047 synchronized (mRulesLock) { 1048 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1049 networkType++) { 1050 if (getNetworkInfoForType(networkType) != null) { 1051 final NetworkInfo info = getFilteredNetworkInfo(networkType, uid); 1052 final LinkProperties lp = getLinkPropertiesForTypeInternal(networkType); 1053 final NetworkCapabilities netcap = getNetworkCapabilitiesForType(networkType); 1054 result.add(new NetworkState(info, lp, netcap)); 1055 } 1056 } 1057 } 1058 return result.toArray(new NetworkState[result.size()]); 1059 } 1060 1061 private NetworkState getNetworkStateUnchecked(int networkType) { 1062 if (isNetworkTypeValid(networkType)) { 1063 NetworkInfo info = getNetworkInfoForType(networkType); 1064 if (info != null) { 1065 return new NetworkState(info, 1066 getLinkPropertiesForTypeInternal(networkType), 1067 getNetworkCapabilitiesForType(networkType)); 1068 } 1069 } 1070 return null; 1071 } 1072 1073 @Override 1074 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1075 enforceAccessPermission(); 1076 1077 final long token = Binder.clearCallingIdentity(); 1078 try { 1079 final NetworkState state = getNetworkStateUnchecked(mActiveDefaultNetwork); 1080 if (state != null) { 1081 try { 1082 return mPolicyManager.getNetworkQuotaInfo(state); 1083 } catch (RemoteException e) { 1084 } 1085 } 1086 return null; 1087 } finally { 1088 Binder.restoreCallingIdentity(token); 1089 } 1090 } 1091 1092 @Override 1093 public boolean isActiveNetworkMetered() { 1094 enforceAccessPermission(); 1095 final long token = Binder.clearCallingIdentity(); 1096 try { 1097 return isNetworkMeteredUnchecked(mActiveDefaultNetwork); 1098 } finally { 1099 Binder.restoreCallingIdentity(token); 1100 } 1101 } 1102 1103 private boolean isNetworkMeteredUnchecked(int networkType) { 1104 final NetworkState state = getNetworkStateUnchecked(networkType); 1105 if (state != null) { 1106 try { 1107 return mPolicyManager.isNetworkMetered(state); 1108 } catch (RemoteException e) { 1109 } 1110 } 1111 return false; 1112 } 1113 1114 private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { 1115 @Override 1116 public void interfaceClassDataActivityChanged(String label, boolean active, long tsNanos) { 1117 int deviceType = Integer.parseInt(label); 1118 sendDataActivityBroadcast(deviceType, active, tsNanos); 1119 } 1120 }; 1121 1122 /** 1123 * Ensure that a network route exists to deliver traffic to the specified 1124 * host via the specified network interface. 1125 * @param networkType the type of the network over which traffic to the 1126 * specified host is to be routed 1127 * @param hostAddress the IP address of the host to which the route is 1128 * desired 1129 * @return {@code true} on success, {@code false} on failure 1130 */ 1131 public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress) { 1132 enforceChangePermission(); 1133 if (mProtectedNetworks.contains(networkType)) { 1134 enforceConnectivityInternalPermission(); 1135 } 1136 1137 InetAddress addr; 1138 try { 1139 addr = InetAddress.getByAddress(hostAddress); 1140 } catch (UnknownHostException e) { 1141 if (DBG) log("requestRouteToHostAddress got " + e.toString()); 1142 return false; 1143 } 1144 1145 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1146 if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); 1147 return false; 1148 } 1149 1150 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1151 if (nai == null) { 1152 if (mLegacyTypeTracker.isTypeSupported(networkType) == false) { 1153 if (DBG) log("requestRouteToHostAddress on unsupported network: " + networkType); 1154 } else { 1155 if (DBG) log("requestRouteToHostAddress on down network: " + networkType); 1156 } 1157 return false; 1158 } 1159 1160 DetailedState netState; 1161 synchronized (nai) { 1162 netState = nai.networkInfo.getDetailedState(); 1163 } 1164 1165 if (netState != DetailedState.CONNECTED && netState != DetailedState.CAPTIVE_PORTAL_CHECK) { 1166 if (VDBG) { 1167 log("requestRouteToHostAddress on down network " 1168 + "(" + networkType + ") - dropped" 1169 + " netState=" + netState); 1170 } 1171 return false; 1172 } 1173 1174 final int uid = Binder.getCallingUid(); 1175 final long token = Binder.clearCallingIdentity(); 1176 try { 1177 LinkProperties lp; 1178 int netId; 1179 synchronized (nai) { 1180 lp = nai.linkProperties; 1181 netId = nai.network.netId; 1182 } 1183 boolean ok = addLegacyRouteToHost(lp, addr, netId, uid); 1184 if (DBG) log("requestRouteToHostAddress ok=" + ok); 1185 return ok; 1186 } finally { 1187 Binder.restoreCallingIdentity(token); 1188 } 1189 } 1190 1191 private boolean addLegacyRouteToHost(LinkProperties lp, InetAddress addr, int netId, int uid) { 1192 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), addr); 1193 if (bestRoute == null) { 1194 bestRoute = RouteInfo.makeHostRoute(addr, lp.getInterfaceName()); 1195 } else { 1196 String iface = bestRoute.getInterface(); 1197 if (bestRoute.getGateway().equals(addr)) { 1198 // if there is no better route, add the implied hostroute for our gateway 1199 bestRoute = RouteInfo.makeHostRoute(addr, iface); 1200 } else { 1201 // if we will connect to this through another route, add a direct route 1202 // to it's gateway 1203 bestRoute = RouteInfo.makeHostRoute(addr, bestRoute.getGateway(), iface); 1204 } 1205 } 1206 if (VDBG) log("Adding " + bestRoute + " for interface " + bestRoute.getInterface()); 1207 try { 1208 mNetd.addLegacyRouteForNetId(netId, bestRoute, uid); 1209 } catch (Exception e) { 1210 // never crash - catch them all 1211 if (DBG) loge("Exception trying to add a route: " + e); 1212 return false; 1213 } 1214 return true; 1215 } 1216 1217 public void setDataDependency(int networkType, boolean met) { 1218 enforceConnectivityInternalPermission(); 1219 1220 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_DEPENDENCY_MET, 1221 (met ? ENABLED : DISABLED), networkType)); 1222 } 1223 1224 private void handleSetDependencyMet(int networkType, boolean met) { 1225 if (mNetTrackers[networkType] != null) { 1226 if (DBG) { 1227 log("handleSetDependencyMet(" + networkType + ", " + met + ")"); 1228 } 1229 mNetTrackers[networkType].setDependencyMet(met); 1230 } 1231 } 1232 1233 private INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() { 1234 @Override 1235 public void onUidRulesChanged(int uid, int uidRules) { 1236 // caller is NPMS, since we only register with them 1237 if (LOGD_RULES) { 1238 log("onUidRulesChanged(uid=" + uid + ", uidRules=" + uidRules + ")"); 1239 } 1240 1241 synchronized (mRulesLock) { 1242 // skip update when we've already applied rules 1243 final int oldRules = mUidRules.get(uid, RULE_ALLOW_ALL); 1244 if (oldRules == uidRules) return; 1245 1246 mUidRules.put(uid, uidRules); 1247 } 1248 1249 // TODO: notify UID when it has requested targeted updates 1250 } 1251 1252 @Override 1253 public void onMeteredIfacesChanged(String[] meteredIfaces) { 1254 // caller is NPMS, since we only register with them 1255 if (LOGD_RULES) { 1256 log("onMeteredIfacesChanged(ifaces=" + Arrays.toString(meteredIfaces) + ")"); 1257 } 1258 1259 synchronized (mRulesLock) { 1260 mMeteredIfaces.clear(); 1261 for (String iface : meteredIfaces) { 1262 mMeteredIfaces.add(iface); 1263 } 1264 } 1265 } 1266 1267 @Override 1268 public void onRestrictBackgroundChanged(boolean restrictBackground) { 1269 // caller is NPMS, since we only register with them 1270 if (LOGD_RULES) { 1271 log("onRestrictBackgroundChanged(restrictBackground=" + restrictBackground + ")"); 1272 } 1273 1274 // kick off connectivity change broadcast for active network, since 1275 // global background policy change is radical. 1276 final int networkType = mActiveDefaultNetwork; 1277 if (isNetworkTypeValid(networkType)) { 1278 final NetworkStateTracker tracker = mNetTrackers[networkType]; 1279 if (tracker != null) { 1280 final NetworkInfo info = tracker.getNetworkInfo(); 1281 if (info != null && info.isConnected()) { 1282 sendConnectedBroadcast(info); 1283 } 1284 } 1285 } 1286 } 1287 }; 1288 1289 @Override 1290 public void setPolicyDataEnable(int networkType, boolean enabled) { 1291 // only someone like NPMS should only be calling us 1292 mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); 1293 1294 mHandler.sendMessage(mHandler.obtainMessage( 1295 EVENT_SET_POLICY_DATA_ENABLE, networkType, (enabled ? ENABLED : DISABLED))); 1296 } 1297 1298 private void handleSetPolicyDataEnable(int networkType, boolean enabled) { 1299 // TODO - handle this passing to factories 1300// if (isNetworkTypeValid(networkType)) { 1301// final NetworkStateTracker tracker = mNetTrackers[networkType]; 1302// if (tracker != null) { 1303// tracker.setPolicyDataEnable(enabled); 1304// } 1305// } 1306 } 1307 1308 private void enforceAccessPermission() { 1309 mContext.enforceCallingOrSelfPermission( 1310 android.Manifest.permission.ACCESS_NETWORK_STATE, 1311 "ConnectivityService"); 1312 } 1313 1314 private void enforceChangePermission() { 1315 mContext.enforceCallingOrSelfPermission( 1316 android.Manifest.permission.CHANGE_NETWORK_STATE, 1317 "ConnectivityService"); 1318 } 1319 1320 // TODO Make this a special check when it goes public 1321 private void enforceTetherChangePermission() { 1322 mContext.enforceCallingOrSelfPermission( 1323 android.Manifest.permission.CHANGE_NETWORK_STATE, 1324 "ConnectivityService"); 1325 } 1326 1327 private void enforceTetherAccessPermission() { 1328 mContext.enforceCallingOrSelfPermission( 1329 android.Manifest.permission.ACCESS_NETWORK_STATE, 1330 "ConnectivityService"); 1331 } 1332 1333 private void enforceConnectivityInternalPermission() { 1334 mContext.enforceCallingOrSelfPermission( 1335 android.Manifest.permission.CONNECTIVITY_INTERNAL, 1336 "ConnectivityService"); 1337 } 1338 1339 public void sendConnectedBroadcast(NetworkInfo info) { 1340 enforceConnectivityInternalPermission(); 1341 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1342 sendGeneralBroadcast(info, CONNECTIVITY_ACTION); 1343 } 1344 1345 private void sendConnectedBroadcastDelayed(NetworkInfo info, int delayMs) { 1346 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1347 sendGeneralBroadcastDelayed(info, CONNECTIVITY_ACTION, delayMs); 1348 } 1349 1350 private void sendInetConditionBroadcast(NetworkInfo info) { 1351 sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION); 1352 } 1353 1354 private Intent makeGeneralIntent(NetworkInfo info, String bcastType) { 1355 if (mLockdownTracker != null) { 1356 info = mLockdownTracker.augmentNetworkInfo(info); 1357 } 1358 1359 Intent intent = new Intent(bcastType); 1360 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 1361 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 1362 if (info.isFailover()) { 1363 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 1364 info.setFailover(false); 1365 } 1366 if (info.getReason() != null) { 1367 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 1368 } 1369 if (info.getExtraInfo() != null) { 1370 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 1371 info.getExtraInfo()); 1372 } 1373 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 1374 return intent; 1375 } 1376 1377 private void sendGeneralBroadcast(NetworkInfo info, String bcastType) { 1378 sendStickyBroadcast(makeGeneralIntent(info, bcastType)); 1379 } 1380 1381 private void sendGeneralBroadcastDelayed(NetworkInfo info, String bcastType, int delayMs) { 1382 sendStickyBroadcastDelayed(makeGeneralIntent(info, bcastType), delayMs); 1383 } 1384 1385 private void sendDataActivityBroadcast(int deviceType, boolean active, long tsNanos) { 1386 Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); 1387 intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); 1388 intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); 1389 intent.putExtra(ConnectivityManager.EXTRA_REALTIME_NS, tsNanos); 1390 final long ident = Binder.clearCallingIdentity(); 1391 try { 1392 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, 1393 RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); 1394 } finally { 1395 Binder.restoreCallingIdentity(ident); 1396 } 1397 } 1398 1399 private void sendStickyBroadcast(Intent intent) { 1400 synchronized(this) { 1401 if (!mSystemReady) { 1402 mInitialBroadcast = new Intent(intent); 1403 } 1404 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1405 if (VDBG) { 1406 log("sendStickyBroadcast: action=" + intent.getAction()); 1407 } 1408 1409 final long ident = Binder.clearCallingIdentity(); 1410 try { 1411 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1412 } finally { 1413 Binder.restoreCallingIdentity(ident); 1414 } 1415 } 1416 } 1417 1418 private void sendStickyBroadcastDelayed(Intent intent, int delayMs) { 1419 if (delayMs <= 0) { 1420 sendStickyBroadcast(intent); 1421 } else { 1422 if (VDBG) { 1423 log("sendStickyBroadcastDelayed: delayMs=" + delayMs + ", action=" 1424 + intent.getAction()); 1425 } 1426 mHandler.sendMessageDelayed(mHandler.obtainMessage( 1427 EVENT_SEND_STICKY_BROADCAST_INTENT, intent), delayMs); 1428 } 1429 } 1430 1431 void systemReady() { 1432 // start network sampling .. 1433 Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 1434 intent.setPackage(mContext.getPackageName()); 1435 1436 mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, 1437 SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); 1438 setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); 1439 1440 loadGlobalProxy(); 1441 1442 synchronized(this) { 1443 mSystemReady = true; 1444 if (mInitialBroadcast != null) { 1445 mContext.sendStickyBroadcastAsUser(mInitialBroadcast, UserHandle.ALL); 1446 mInitialBroadcast = null; 1447 } 1448 } 1449 // load the global proxy at startup 1450 mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY)); 1451 1452 // Try bringing up tracker, but if KeyStore isn't ready yet, wait 1453 // for user to unlock device. 1454 if (!updateLockdownVpn()) { 1455 final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_PRESENT); 1456 mContext.registerReceiver(mUserPresentReceiver, filter); 1457 } 1458 } 1459 1460 private BroadcastReceiver mUserPresentReceiver = new BroadcastReceiver() { 1461 @Override 1462 public void onReceive(Context context, Intent intent) { 1463 // Try creating lockdown tracker, since user present usually means 1464 // unlocked keystore. 1465 if (updateLockdownVpn()) { 1466 mContext.unregisterReceiver(this); 1467 } 1468 } 1469 }; 1470 1471 /** @hide */ 1472 @Override 1473 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 1474 enforceConnectivityInternalPermission(); 1475 if (DBG) log("captivePortalCheckCompleted: ni=" + info + " captive=" + isCaptivePortal); 1476// mNetTrackers[info.getType()].captivePortalCheckCompleted(isCaptivePortal); 1477 } 1478 1479 /** 1480 * Setup data activity tracking for the given network. 1481 * 1482 * Every {@code setupDataActivityTracking} should be paired with a 1483 * {@link #removeDataActivityTracking} for cleanup. 1484 */ 1485 private void setupDataActivityTracking(NetworkAgentInfo networkAgent) { 1486 final String iface = networkAgent.linkProperties.getInterfaceName(); 1487 1488 final int timeout; 1489 int type = ConnectivityManager.TYPE_NONE; 1490 1491 if (networkAgent.networkCapabilities.hasTransport( 1492 NetworkCapabilities.TRANSPORT_CELLULAR)) { 1493 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1494 Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, 1495 5); 1496 type = ConnectivityManager.TYPE_MOBILE; 1497 } else if (networkAgent.networkCapabilities.hasTransport( 1498 NetworkCapabilities.TRANSPORT_WIFI)) { 1499 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1500 Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, 1501 0); 1502 type = ConnectivityManager.TYPE_WIFI; 1503 } else { 1504 // do not track any other networks 1505 timeout = 0; 1506 } 1507 1508 if (timeout > 0 && iface != null && type != ConnectivityManager.TYPE_NONE) { 1509 try { 1510 mNetd.addIdleTimer(iface, timeout, type); 1511 } catch (Exception e) { 1512 // You shall not crash! 1513 loge("Exception in setupDataActivityTracking " + e); 1514 } 1515 } 1516 } 1517 1518 /** 1519 * Remove data activity tracking when network disconnects. 1520 */ 1521 private void removeDataActivityTracking(NetworkAgentInfo networkAgent) { 1522 final String iface = networkAgent.linkProperties.getInterfaceName(); 1523 final NetworkCapabilities caps = networkAgent.networkCapabilities; 1524 1525 if (iface != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) || 1526 caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))) { 1527 try { 1528 // the call fails silently if no idletimer setup for this interface 1529 mNetd.removeIdleTimer(iface); 1530 } catch (Exception e) { 1531 loge("Exception in removeDataActivityTracking " + e); 1532 } 1533 } 1534 } 1535 1536 /** 1537 * Reads the network specific MTU size from reources. 1538 * and set it on it's iface. 1539 */ 1540 private void updateMtu(LinkProperties newLp, LinkProperties oldLp) { 1541 final String iface = newLp.getInterfaceName(); 1542 final int mtu = newLp.getMtu(); 1543 if (oldLp != null && newLp.isIdenticalMtu(oldLp)) { 1544 if (VDBG) log("identical MTU - not setting"); 1545 return; 1546 } 1547 1548 if (mtu < 68 || mtu > 10000) { 1549 loge("Unexpected mtu value: " + mtu + ", " + iface); 1550 return; 1551 } 1552 1553 try { 1554 if (VDBG) log("Setting MTU size: " + iface + ", " + mtu); 1555 mNetd.setMtu(iface, mtu); 1556 } catch (Exception e) { 1557 Slog.e(TAG, "exception in setMtu()" + e); 1558 } 1559 } 1560 1561 /** 1562 * Reads the network specific TCP buffer sizes from SystemProperties 1563 * net.tcp.buffersize.[default|wifi|umts|edge|gprs] and set them for system 1564 * wide use 1565 */ 1566 private void updateNetworkSettings(NetworkStateTracker nt) { 1567 String key = nt.getTcpBufferSizesPropName(); 1568 String bufferSizes = key == null ? null : SystemProperties.get(key); 1569 1570 if (TextUtils.isEmpty(bufferSizes)) { 1571 if (VDBG) log(key + " not found in system properties. Using defaults"); 1572 1573 // Setting to default values so we won't be stuck to previous values 1574 key = "net.tcp.buffersize.default"; 1575 bufferSizes = SystemProperties.get(key); 1576 } 1577 1578 // Set values in kernel 1579 if (bufferSizes.length() != 0) { 1580 if (VDBG) { 1581 log("Setting TCP values: [" + bufferSizes 1582 + "] which comes from [" + key + "]"); 1583 } 1584 setBufferSize(bufferSizes); 1585 } 1586 1587 final String defaultRwndKey = "net.tcp.default_init_rwnd"; 1588 int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0); 1589 Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(), 1590 Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue); 1591 final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd"; 1592 if (rwndValue != 0) { 1593 SystemProperties.set(sysctlKey, rwndValue.toString()); 1594 } 1595 } 1596 1597 /** 1598 * Writes TCP buffer sizes to /sys/kernel/ipv4/tcp_[r/w]mem_[min/def/max] 1599 * which maps to /proc/sys/net/ipv4/tcp_rmem and tcpwmem 1600 * 1601 * @param bufferSizes in the format of "readMin, readInitial, readMax, 1602 * writeMin, writeInitial, writeMax" 1603 */ 1604 private void setBufferSize(String bufferSizes) { 1605 try { 1606 String[] values = bufferSizes.split(","); 1607 1608 if (values.length == 6) { 1609 final String prefix = "/sys/kernel/ipv4/tcp_"; 1610 FileUtils.stringToFile(prefix + "rmem_min", values[0]); 1611 FileUtils.stringToFile(prefix + "rmem_def", values[1]); 1612 FileUtils.stringToFile(prefix + "rmem_max", values[2]); 1613 FileUtils.stringToFile(prefix + "wmem_min", values[3]); 1614 FileUtils.stringToFile(prefix + "wmem_def", values[4]); 1615 FileUtils.stringToFile(prefix + "wmem_max", values[5]); 1616 } else { 1617 loge("Invalid buffersize string: " + bufferSizes); 1618 } 1619 } catch (IOException e) { 1620 loge("Can't set tcp buffer sizes:" + e); 1621 } 1622 } 1623 1624 private void flushVmDnsCache() { 1625 /* 1626 * Tell the VMs to toss their DNS caches 1627 */ 1628 Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE); 1629 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); 1630 /* 1631 * Connectivity events can happen before boot has completed ... 1632 */ 1633 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1634 final long ident = Binder.clearCallingIdentity(); 1635 try { 1636 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 1637 } finally { 1638 Binder.restoreCallingIdentity(ident); 1639 } 1640 } 1641 1642 @Override 1643 public int getRestoreDefaultNetworkDelay(int networkType) { 1644 String restoreDefaultNetworkDelayStr = SystemProperties.get( 1645 NETWORK_RESTORE_DELAY_PROP_NAME); 1646 if(restoreDefaultNetworkDelayStr != null && 1647 restoreDefaultNetworkDelayStr.length() != 0) { 1648 try { 1649 return Integer.valueOf(restoreDefaultNetworkDelayStr); 1650 } catch (NumberFormatException e) { 1651 } 1652 } 1653 // if the system property isn't set, use the value for the apn type 1654 int ret = RESTORE_DEFAULT_NETWORK_DELAY; 1655 1656 if ((networkType <= ConnectivityManager.MAX_NETWORK_TYPE) && 1657 (mNetConfigs[networkType] != null)) { 1658 ret = mNetConfigs[networkType].restoreTime; 1659 } 1660 return ret; 1661 } 1662 1663 @Override 1664 protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { 1665 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1666 if (mContext.checkCallingOrSelfPermission( 1667 android.Manifest.permission.DUMP) 1668 != PackageManager.PERMISSION_GRANTED) { 1669 pw.println("Permission Denial: can't dump ConnectivityService " + 1670 "from from pid=" + Binder.getCallingPid() + ", uid=" + 1671 Binder.getCallingUid()); 1672 return; 1673 } 1674 1675 pw.println("NetworkFactories for:"); 1676 pw.increaseIndent(); 1677 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 1678 pw.println(nfi.name); 1679 } 1680 pw.decreaseIndent(); 1681 pw.println(); 1682 1683 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 1684 pw.print("Active default network: "); 1685 if (defaultNai == null) { 1686 pw.println("none"); 1687 } else { 1688 pw.println(defaultNai.network.netId); 1689 } 1690 pw.println(); 1691 1692 pw.println("Current Networks:"); 1693 pw.increaseIndent(); 1694 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 1695 pw.println(nai.toString()); 1696 pw.increaseIndent(); 1697 pw.println("Requests:"); 1698 pw.increaseIndent(); 1699 for (int i = 0; i < nai.networkRequests.size(); i++) { 1700 pw.println(nai.networkRequests.valueAt(i).toString()); 1701 } 1702 pw.decreaseIndent(); 1703 pw.println("Lingered:"); 1704 pw.increaseIndent(); 1705 for (NetworkRequest nr : nai.networkLingered) pw.println(nr.toString()); 1706 pw.decreaseIndent(); 1707 pw.decreaseIndent(); 1708 } 1709 pw.decreaseIndent(); 1710 pw.println(); 1711 1712 pw.println("Network Requests:"); 1713 pw.increaseIndent(); 1714 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 1715 pw.println(nri.toString()); 1716 } 1717 pw.println(); 1718 pw.decreaseIndent(); 1719 1720 pw.print("mActiveDefaultNetwork: " + mActiveDefaultNetwork); 1721 if (mActiveDefaultNetwork != TYPE_NONE) { 1722 NetworkInfo activeNetworkInfo = getActiveNetworkInfo(); 1723 if (activeNetworkInfo != null) { 1724 pw.print(" " + activeNetworkInfo.getState() + 1725 "/" + activeNetworkInfo.getDetailedState()); 1726 } 1727 } 1728 pw.println(); 1729 1730 pw.println("mLegacyTypeTracker:"); 1731 pw.increaseIndent(); 1732 mLegacyTypeTracker.dump(pw); 1733 pw.decreaseIndent(); 1734 pw.println(); 1735 1736 synchronized (this) { 1737 pw.println("NetworkTranstionWakeLock is currently " + 1738 (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held."); 1739 pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy); 1740 } 1741 pw.println(); 1742 1743 mTethering.dump(fd, pw, args); 1744 1745 if (mInetLog != null) { 1746 pw.println(); 1747 pw.println("Inet condition reports:"); 1748 pw.increaseIndent(); 1749 for(int i = 0; i < mInetLog.size(); i++) { 1750 pw.println(mInetLog.get(i)); 1751 } 1752 pw.decreaseIndent(); 1753 } 1754 } 1755 1756 // must be stateless - things change under us. 1757 private class NetworkStateTrackerHandler extends Handler { 1758 public NetworkStateTrackerHandler(Looper looper) { 1759 super(looper); 1760 } 1761 1762 @Override 1763 public void handleMessage(Message msg) { 1764 NetworkInfo info; 1765 switch (msg.what) { 1766 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 1767 handleAsyncChannelHalfConnect(msg); 1768 break; 1769 } 1770 case AsyncChannel.CMD_CHANNEL_DISCONNECT: { 1771 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1772 if (nai != null) nai.asyncChannel.disconnect(); 1773 break; 1774 } 1775 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 1776 handleAsyncChannelDisconnected(msg); 1777 break; 1778 } 1779 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { 1780 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1781 if (nai == null) { 1782 loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); 1783 } else { 1784 updateCapabilities(nai, (NetworkCapabilities)msg.obj); 1785 } 1786 break; 1787 } 1788 case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { 1789 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1790 if (nai == null) { 1791 loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); 1792 } else { 1793 if (VDBG) log("Update of Linkproperties for " + nai.name()); 1794 LinkProperties oldLp = nai.linkProperties; 1795 synchronized (nai) { 1796 nai.linkProperties = (LinkProperties)msg.obj; 1797 } 1798 updateLinkProperties(nai, oldLp); 1799 } 1800 break; 1801 } 1802 case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { 1803 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1804 if (nai == null) { 1805 loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); 1806 break; 1807 } 1808 info = (NetworkInfo) msg.obj; 1809 updateNetworkInfo(nai, info); 1810 break; 1811 } 1812 case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { 1813 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1814 if (nai == null) { 1815 loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); 1816 break; 1817 } 1818 Integer score = (Integer) msg.obj; 1819 if (score != null) updateNetworkScore(nai, score.intValue()); 1820 break; 1821 } 1822 case NetworkAgent.EVENT_UID_RANGES_ADDED: { 1823 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1824 if (nai == null) { 1825 loge("EVENT_UID_RANGES_ADDED from unknown NetworkAgent"); 1826 break; 1827 } 1828 try { 1829 mNetd.addVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1830 } catch (Exception e) { 1831 // Never crash! 1832 loge("Exception in addVpnUidRanges: " + e); 1833 } 1834 break; 1835 } 1836 case NetworkAgent.EVENT_UID_RANGES_REMOVED: { 1837 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1838 if (nai == null) { 1839 loge("EVENT_UID_RANGES_REMOVED from unknown NetworkAgent"); 1840 break; 1841 } 1842 try { 1843 mNetd.removeVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1844 } catch (Exception e) { 1845 // Never crash! 1846 loge("Exception in removeVpnUidRanges: " + e); 1847 } 1848 break; 1849 } 1850 case NetworkAgent.EVENT_BLOCK_ADDRESS_FAMILY: { 1851 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1852 if (nai == null) { 1853 loge("EVENT_BLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1854 break; 1855 } 1856 try { 1857 mNetd.blockAddressFamily((Integer) msg.obj, nai.network.netId, 1858 nai.linkProperties.getInterfaceName()); 1859 } catch (Exception e) { 1860 // Never crash! 1861 loge("Exception in blockAddressFamily: " + e); 1862 } 1863 break; 1864 } 1865 case NetworkAgent.EVENT_UNBLOCK_ADDRESS_FAMILY: { 1866 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1867 if (nai == null) { 1868 loge("EVENT_UNBLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1869 break; 1870 } 1871 try { 1872 mNetd.unblockAddressFamily((Integer) msg.obj, nai.network.netId, 1873 nai.linkProperties.getInterfaceName()); 1874 } catch (Exception e) { 1875 // Never crash! 1876 loge("Exception in blockAddressFamily: " + e); 1877 } 1878 break; 1879 } 1880 case NetworkMonitor.EVENT_NETWORK_VALIDATED: { 1881 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1882 handleConnectionValidated(nai); 1883 break; 1884 } 1885 case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { 1886 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1887 handleLingerComplete(nai); 1888 break; 1889 } 1890 case NetworkMonitor.EVENT_PROVISIONING_NOTIFICATION: { 1891 if (msg.arg1 == 0) { 1892 setProvNotificationVisibleIntent(false, msg.arg2, 0, null, null); 1893 } else { 1894 NetworkAgentInfo nai = mNetworkForNetId.get(msg.arg2); 1895 if (nai == null) { 1896 loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); 1897 break; 1898 } 1899 setProvNotificationVisibleIntent(true, msg.arg2, nai.networkInfo.getType(), 1900 nai.networkInfo.getExtraInfo(), (PendingIntent)msg.obj); 1901 } 1902 break; 1903 } 1904 case NetworkStateTracker.EVENT_STATE_CHANGED: { 1905 info = (NetworkInfo) msg.obj; 1906 NetworkInfo.State state = info.getState(); 1907 1908 if (VDBG || (state == NetworkInfo.State.CONNECTED) || 1909 (state == NetworkInfo.State.DISCONNECTED) || 1910 (state == NetworkInfo.State.SUSPENDED)) { 1911 log("ConnectivityChange for " + 1912 info.getTypeName() + ": " + 1913 state + "/" + info.getDetailedState()); 1914 } 1915 1916 // Since mobile has the notion of a network/apn that can be used for 1917 // provisioning we need to check every time we're connected as 1918 // CaptiveProtalTracker won't detected it because DCT doesn't report it 1919 // as connected as ACTION_ANY_DATA_CONNECTION_STATE_CHANGED instead its 1920 // reported as ACTION_DATA_CONNECTION_CONNECTED_TO_PROVISIONING_APN. Which 1921 // is received by MDST and sent here as EVENT_STATE_CHANGED. 1922 if (ConnectivityManager.isNetworkTypeMobile(info.getType()) 1923 && (0 != Settings.Global.getInt(mContext.getContentResolver(), 1924 Settings.Global.DEVICE_PROVISIONED, 0)) 1925 && (((state == NetworkInfo.State.CONNECTED) 1926 && (info.getType() == ConnectivityManager.TYPE_MOBILE)) 1927 || info.isConnectedToProvisioningNetwork())) { 1928 log("ConnectivityChange checkMobileProvisioning for" 1929 + " TYPE_MOBILE or ProvisioningNetwork"); 1930 checkMobileProvisioning(CheckMp.MAX_TIMEOUT_MS); 1931 } 1932 1933 EventLogTags.writeConnectivityStateChanged( 1934 info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); 1935 1936 if (info.isConnectedToProvisioningNetwork()) { 1937 /** 1938 * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING 1939 * for now its an in between network, its a network that 1940 * is actually a default network but we don't want it to be 1941 * announced as such to keep background applications from 1942 * trying to use it. It turns out that some still try so we 1943 * take the additional step of clearing any default routes 1944 * to the link that may have incorrectly setup by the lower 1945 * levels. 1946 */ 1947 LinkProperties lp = getLinkPropertiesForTypeInternal(info.getType()); 1948 if (DBG) { 1949 log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); 1950 } 1951 1952 // Clear any default routes setup by the radio so 1953 // any activity by applications trying to use this 1954 // connection will fail until the provisioning network 1955 // is enabled. 1956 /* 1957 for (RouteInfo r : lp.getRoutes()) { 1958 removeRoute(lp, r, TO_DEFAULT_TABLE, 1959 mNetTrackers[info.getType()].getNetwork().netId); 1960 } 1961 */ 1962 } else if (state == NetworkInfo.State.DISCONNECTED) { 1963 } else if (state == NetworkInfo.State.SUSPENDED) { 1964 } else if (state == NetworkInfo.State.CONNECTED) { 1965 // handleConnect(info); 1966 } 1967 if (mLockdownTracker != null) { 1968 mLockdownTracker.onNetworkInfoChanged(info); 1969 } 1970 break; 1971 } 1972 case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { 1973 info = (NetworkInfo) msg.obj; 1974 // TODO: Temporary allowing network configuration 1975 // change not resetting sockets. 1976 // @see bug/4455071 1977 /* 1978 handleConnectivityChange(info.getType(), mCurrentLinkProperties[info.getType()], 1979 false); 1980 */ 1981 break; 1982 } 1983 case NetworkStateTracker.EVENT_NETWORK_SUBTYPE_CHANGED: { 1984 info = (NetworkInfo) msg.obj; 1985 int type = info.getType(); 1986 if (mNetConfigs[type].isDefault()) updateNetworkSettings(mNetTrackers[type]); 1987 break; 1988 } 1989 } 1990 } 1991 } 1992 1993 private void handleAsyncChannelHalfConnect(Message msg) { 1994 AsyncChannel ac = (AsyncChannel) msg.obj; 1995 if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { 1996 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 1997 if (VDBG) log("NetworkFactory connected"); 1998 // A network factory has connected. Send it all current NetworkRequests. 1999 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 2000 if (nri.isRequest == false) continue; 2001 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2002 ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, 2003 (nai != null ? nai.currentScore : 0), 0, nri.request); 2004 } 2005 } else { 2006 loge("Error connecting NetworkFactory"); 2007 mNetworkFactoryInfos.remove(msg.obj); 2008 } 2009 } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { 2010 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2011 if (VDBG) log("NetworkAgent connected"); 2012 // A network agent has requested a connection. Establish the connection. 2013 mNetworkAgentInfos.get(msg.replyTo).asyncChannel. 2014 sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 2015 } else { 2016 loge("Error connecting NetworkAgent"); 2017 NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); 2018 if (nai != null) { 2019 synchronized (mNetworkForNetId) { 2020 mNetworkForNetId.remove(nai.network.netId); 2021 } 2022 // Just in case. 2023 mLegacyTypeTracker.remove(nai); 2024 } 2025 } 2026 } 2027 } 2028 private void handleAsyncChannelDisconnected(Message msg) { 2029 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 2030 if (nai != null) { 2031 if (DBG) { 2032 log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); 2033 } 2034 // A network agent has disconnected. 2035 // Tell netd to clean up the configuration for this network 2036 // (routing rules, DNS, etc). 2037 try { 2038 mNetd.removeNetwork(nai.network.netId); 2039 } catch (Exception e) { 2040 loge("Exception removing network: " + e); 2041 } 2042 // TODO - if we move the logic to the network agent (have them disconnect 2043 // because they lost all their requests or because their score isn't good) 2044 // then they would disconnect organically, report their new state and then 2045 // disconnect the channel. 2046 if (nai.networkInfo.isConnected()) { 2047 nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, 2048 null, null); 2049 } 2050 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); 2051 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); 2052 mNetworkAgentInfos.remove(msg.replyTo); 2053 updateClat(null, nai.linkProperties, nai); 2054 mLegacyTypeTracker.remove(nai); 2055 synchronized (mNetworkForNetId) { 2056 mNetworkForNetId.remove(nai.network.netId); 2057 } 2058 // Since we've lost the network, go through all the requests that 2059 // it was satisfying and see if any other factory can satisfy them. 2060 final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); 2061 for (int i = 0; i < nai.networkRequests.size(); i++) { 2062 NetworkRequest request = nai.networkRequests.valueAt(i); 2063 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); 2064 if (VDBG) { 2065 log(" checking request " + request + ", currentNetwork = " + 2066 (currentNetwork != null ? currentNetwork.name() : "null")); 2067 } 2068 if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { 2069 mNetworkForRequestId.remove(request.requestId); 2070 sendUpdatedScoreToFactories(request, 0); 2071 NetworkAgentInfo alternative = null; 2072 for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { 2073 NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); 2074 if (existing.networkInfo.isConnected() && 2075 request.networkCapabilities.satisfiedByNetworkCapabilities( 2076 existing.networkCapabilities) && 2077 (alternative == null || 2078 alternative.currentScore < existing.currentScore)) { 2079 alternative = existing; 2080 } 2081 } 2082 if (alternative != null && !toActivate.contains(alternative)) { 2083 toActivate.add(alternative); 2084 } 2085 } 2086 } 2087 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 2088 removeDataActivityTracking(nai); 2089 mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; 2090 requestNetworkTransitionWakelock(nai.name()); 2091 } 2092 for (NetworkAgentInfo networkToActivate : toActivate) { 2093 networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2094 } 2095 } 2096 } 2097 2098 private void handleRegisterNetworkRequest(Message msg) { 2099 final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); 2100 final NetworkCapabilities newCap = nri.request.networkCapabilities; 2101 int score = 0; 2102 2103 // Check for the best currently alive network that satisfies this request 2104 NetworkAgentInfo bestNetwork = null; 2105 for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { 2106 if (VDBG) log("handleRegisterNetworkRequest checking " + network.name()); 2107 if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { 2108 if (VDBG) log("apparently satisfied. currentScore=" + network.currentScore); 2109 if ((bestNetwork == null) || bestNetwork.currentScore < network.currentScore) { 2110 bestNetwork = network; 2111 } 2112 } 2113 } 2114 if (bestNetwork != null) { 2115 if (VDBG) log("using " + bestNetwork.name()); 2116 if (nri.isRequest && bestNetwork.networkInfo.isConnected()) { 2117 // Cancel any lingering so the linger timeout doesn't teardown this network 2118 // even though we have a request for it. 2119 bestNetwork.networkLingered.clear(); 2120 bestNetwork.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2121 } 2122 bestNetwork.addRequest(nri.request); 2123 mNetworkForRequestId.put(nri.request.requestId, bestNetwork); 2124 notifyNetworkCallback(bestNetwork, nri); 2125 score = bestNetwork.currentScore; 2126 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 2127 mLegacyTypeTracker.add(nri.request.legacyType, bestNetwork); 2128 } 2129 } 2130 mNetworkRequests.put(nri.request, nri); 2131 if (nri.isRequest) { 2132 if (DBG) log("sending new NetworkRequest to factories"); 2133 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2134 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 2135 0, nri.request); 2136 } 2137 } 2138 } 2139 2140 private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) { 2141 NetworkRequestInfo nri = mNetworkRequests.get(request); 2142 if (nri != null) { 2143 if (nri.mUid != callingUid) { 2144 if (DBG) log("Attempt to release unowned NetworkRequest " + request); 2145 return; 2146 } 2147 if (DBG) log("releasing NetworkRequest " + request); 2148 nri.unlinkDeathRecipient(); 2149 mNetworkRequests.remove(request); 2150 // tell the network currently servicing this that it's no longer interested 2151 NetworkAgentInfo affectedNetwork = mNetworkForRequestId.get(nri.request.requestId); 2152 if (affectedNetwork != null) { 2153 mNetworkForRequestId.remove(nri.request.requestId); 2154 affectedNetwork.networkRequests.remove(nri.request.requestId); 2155 if (VDBG) { 2156 log(" Removing from current network " + affectedNetwork.name() + ", leaving " + 2157 affectedNetwork.networkRequests.size() + " requests."); 2158 } 2159 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 2160 mLegacyTypeTracker.remove(nri.request.legacyType, affectedNetwork); 2161 } 2162 } 2163 2164 if (nri.isRequest) { 2165 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2166 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 2167 nri.request); 2168 } 2169 2170 if (affectedNetwork != null) { 2171 // check if this network still has live requests - otherwise, tear down 2172 // TODO - probably push this to the NF/NA 2173 boolean keep = affectedNetwork.isVPN(); 2174 for (int i = 0; i < affectedNetwork.networkRequests.size() && !keep; i++) { 2175 NetworkRequest r = affectedNetwork.networkRequests.valueAt(i); 2176 if (mNetworkRequests.get(r).isRequest) { 2177 keep = true; 2178 } 2179 } 2180 if (keep == false) { 2181 if (DBG) log("no live requests for " + affectedNetwork.name() + 2182 "; disconnecting"); 2183 affectedNetwork.asyncChannel.disconnect(); 2184 } 2185 } 2186 } 2187 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 2188 } 2189 } 2190 2191 private class InternalHandler extends Handler { 2192 public InternalHandler(Looper looper) { 2193 super(looper); 2194 } 2195 2196 @Override 2197 public void handleMessage(Message msg) { 2198 NetworkInfo info; 2199 switch (msg.what) { 2200 case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: 2201 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 2202 String causedBy = null; 2203 synchronized (ConnectivityService.this) { 2204 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 2205 mNetTransitionWakeLock.isHeld()) { 2206 mNetTransitionWakeLock.release(); 2207 causedBy = mNetTransitionWakeLockCausedBy; 2208 } else { 2209 break; 2210 } 2211 } 2212 if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { 2213 log("Failed to find a new network - expiring NetTransition Wakelock"); 2214 } else { 2215 log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + 2216 " cleared because we found a replacement network"); 2217 } 2218 break; 2219 } 2220 case EVENT_INET_CONDITION_CHANGE: { 2221 int netType = msg.arg1; 2222 int condition = msg.arg2; 2223 handleInetConditionChange(netType, condition); 2224 break; 2225 } 2226 case EVENT_INET_CONDITION_HOLD_END: { 2227 int netType = msg.arg1; 2228 int sequence = msg.arg2; 2229 handleInetConditionHoldEnd(netType, sequence); 2230 break; 2231 } 2232 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 2233 handleDeprecatedGlobalHttpProxy(); 2234 break; 2235 } 2236 case EVENT_SET_DEPENDENCY_MET: { 2237 boolean met = (msg.arg1 == ENABLED); 2238 handleSetDependencyMet(msg.arg2, met); 2239 break; 2240 } 2241 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 2242 Intent intent = (Intent)msg.obj; 2243 sendStickyBroadcast(intent); 2244 break; 2245 } 2246 case EVENT_SET_POLICY_DATA_ENABLE: { 2247 final int networkType = msg.arg1; 2248 final boolean enabled = msg.arg2 == ENABLED; 2249 handleSetPolicyDataEnable(networkType, enabled); 2250 break; 2251 } 2252 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 2253 int tag = mEnableFailFastMobileDataTag.get(); 2254 if (msg.arg1 == tag) { 2255 MobileDataStateTracker mobileDst = 2256 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2257 if (mobileDst != null) { 2258 mobileDst.setEnableFailFastMobileData(msg.arg2); 2259 } 2260 } else { 2261 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 2262 + " != tag:" + tag); 2263 } 2264 break; 2265 } 2266 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 2267 handleNetworkSamplingTimeout(); 2268 break; 2269 } 2270 case EVENT_PROXY_HAS_CHANGED: { 2271 handleApplyDefaultProxy((ProxyInfo)msg.obj); 2272 break; 2273 } 2274 case EVENT_REGISTER_NETWORK_FACTORY: { 2275 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 2276 break; 2277 } 2278 case EVENT_UNREGISTER_NETWORK_FACTORY: { 2279 handleUnregisterNetworkFactory((Messenger)msg.obj); 2280 break; 2281 } 2282 case EVENT_REGISTER_NETWORK_AGENT: { 2283 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 2284 break; 2285 } 2286 case EVENT_REGISTER_NETWORK_REQUEST: 2287 case EVENT_REGISTER_NETWORK_LISTENER: { 2288 handleRegisterNetworkRequest(msg); 2289 break; 2290 } 2291 case EVENT_RELEASE_NETWORK_REQUEST: { 2292 handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); 2293 break; 2294 } 2295 } 2296 } 2297 } 2298 2299 // javadoc from interface 2300 public int tether(String iface) { 2301 enforceTetherChangePermission(); 2302 2303 if (isTetheringSupported()) { 2304 return mTethering.tether(iface); 2305 } else { 2306 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2307 } 2308 } 2309 2310 // javadoc from interface 2311 public int untether(String iface) { 2312 enforceTetherChangePermission(); 2313 2314 if (isTetheringSupported()) { 2315 return mTethering.untether(iface); 2316 } else { 2317 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2318 } 2319 } 2320 2321 // javadoc from interface 2322 public int getLastTetherError(String iface) { 2323 enforceTetherAccessPermission(); 2324 2325 if (isTetheringSupported()) { 2326 return mTethering.getLastTetherError(iface); 2327 } else { 2328 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2329 } 2330 } 2331 2332 // TODO - proper iface API for selection by property, inspection, etc 2333 public String[] getTetherableUsbRegexs() { 2334 enforceTetherAccessPermission(); 2335 if (isTetheringSupported()) { 2336 return mTethering.getTetherableUsbRegexs(); 2337 } else { 2338 return new String[0]; 2339 } 2340 } 2341 2342 public String[] getTetherableWifiRegexs() { 2343 enforceTetherAccessPermission(); 2344 if (isTetheringSupported()) { 2345 return mTethering.getTetherableWifiRegexs(); 2346 } else { 2347 return new String[0]; 2348 } 2349 } 2350 2351 public String[] getTetherableBluetoothRegexs() { 2352 enforceTetherAccessPermission(); 2353 if (isTetheringSupported()) { 2354 return mTethering.getTetherableBluetoothRegexs(); 2355 } else { 2356 return new String[0]; 2357 } 2358 } 2359 2360 public int setUsbTethering(boolean enable) { 2361 enforceTetherChangePermission(); 2362 if (isTetheringSupported()) { 2363 return mTethering.setUsbTethering(enable); 2364 } else { 2365 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2366 } 2367 } 2368 2369 // TODO - move iface listing, queries, etc to new module 2370 // javadoc from interface 2371 public String[] getTetherableIfaces() { 2372 enforceTetherAccessPermission(); 2373 return mTethering.getTetherableIfaces(); 2374 } 2375 2376 public String[] getTetheredIfaces() { 2377 enforceTetherAccessPermission(); 2378 return mTethering.getTetheredIfaces(); 2379 } 2380 2381 public String[] getTetheringErroredIfaces() { 2382 enforceTetherAccessPermission(); 2383 return mTethering.getErroredIfaces(); 2384 } 2385 2386 public String[] getTetheredDhcpRanges() { 2387 enforceConnectivityInternalPermission(); 2388 return mTethering.getTetheredDhcpRanges(); 2389 } 2390 2391 // if ro.tether.denied = true we default to no tethering 2392 // gservices could set the secure setting to 1 though to enable it on a build where it 2393 // had previously been turned off. 2394 public boolean isTetheringSupported() { 2395 enforceTetherAccessPermission(); 2396 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 2397 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 2398 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0) 2399 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); 2400 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 2401 mTethering.getTetherableWifiRegexs().length != 0 || 2402 mTethering.getTetherableBluetoothRegexs().length != 0) && 2403 mTethering.getUpstreamIfaceTypes().length != 0); 2404 } 2405 2406 // Called when we lose the default network and have no replacement yet. 2407 // This will automatically be cleared after X seconds or a new default network 2408 // becomes CONNECTED, whichever happens first. The timer is started by the 2409 // first caller and not restarted by subsequent callers. 2410 private void requestNetworkTransitionWakelock(String forWhom) { 2411 int serialNum = 0; 2412 synchronized (this) { 2413 if (mNetTransitionWakeLock.isHeld()) return; 2414 serialNum = ++mNetTransitionWakeLockSerialNumber; 2415 mNetTransitionWakeLock.acquire(); 2416 mNetTransitionWakeLockCausedBy = forWhom; 2417 } 2418 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2419 EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), 2420 mNetTransitionWakeLockTimeout); 2421 return; 2422 } 2423 2424 // 100 percent is full good, 0 is full bad. 2425 public void reportInetCondition(int networkType, int percentage) { 2426 if (VDBG) log("reportNetworkCondition(" + networkType + ", " + percentage + ")"); 2427 mContext.enforceCallingOrSelfPermission( 2428 android.Manifest.permission.STATUS_BAR, 2429 "ConnectivityService"); 2430 2431 if (DBG) { 2432 int pid = getCallingPid(); 2433 int uid = getCallingUid(); 2434 String s = pid + "(" + uid + ") reports inet is " + 2435 (percentage > 50 ? "connected" : "disconnected") + " (" + percentage + ") on " + 2436 "network Type " + networkType + " at " + GregorianCalendar.getInstance().getTime(); 2437 mInetLog.add(s); 2438 while(mInetLog.size() > INET_CONDITION_LOG_MAX_SIZE) { 2439 mInetLog.remove(0); 2440 } 2441 } 2442 mHandler.sendMessage(mHandler.obtainMessage( 2443 EVENT_INET_CONDITION_CHANGE, networkType, percentage)); 2444 } 2445 2446 public void reportBadNetwork(Network network) { 2447 //TODO 2448 } 2449 2450 private void handleInetConditionChange(int netType, int condition) { 2451 if (mActiveDefaultNetwork == -1) { 2452 if (DBG) log("handleInetConditionChange: no active default network - ignore"); 2453 return; 2454 } 2455 if (mActiveDefaultNetwork != netType) { 2456 if (DBG) log("handleInetConditionChange: net=" + netType + 2457 " != default=" + mActiveDefaultNetwork + " - ignore"); 2458 return; 2459 } 2460 if (VDBG) { 2461 log("handleInetConditionChange: net=" + 2462 netType + ", condition=" + condition + 2463 ",mActiveDefaultNetwork=" + mActiveDefaultNetwork); 2464 } 2465 mDefaultInetCondition = condition; 2466 int delay; 2467 if (mInetConditionChangeInFlight == false) { 2468 if (VDBG) log("handleInetConditionChange: starting a change hold"); 2469 // setup a new hold to debounce this 2470 if (mDefaultInetCondition > 50) { 2471 delay = Settings.Global.getInt(mContext.getContentResolver(), 2472 Settings.Global.INET_CONDITION_DEBOUNCE_UP_DELAY, 500); 2473 } else { 2474 delay = Settings.Global.getInt(mContext.getContentResolver(), 2475 Settings.Global.INET_CONDITION_DEBOUNCE_DOWN_DELAY, 3000); 2476 } 2477 mInetConditionChangeInFlight = true; 2478 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_INET_CONDITION_HOLD_END, 2479 mActiveDefaultNetwork, mDefaultConnectionSequence), delay); 2480 } else { 2481 // we've set the new condition, when this hold ends that will get picked up 2482 if (VDBG) log("handleInetConditionChange: currently in hold - not setting new end evt"); 2483 } 2484 } 2485 2486 private void handleInetConditionHoldEnd(int netType, int sequence) { 2487 if (DBG) { 2488 log("handleInetConditionHoldEnd: net=" + netType + 2489 ", condition=" + mDefaultInetCondition + 2490 ", published condition=" + mDefaultInetConditionPublished); 2491 } 2492 mInetConditionChangeInFlight = false; 2493 2494 if (mActiveDefaultNetwork == -1) { 2495 if (DBG) log("handleInetConditionHoldEnd: no active default network - ignoring"); 2496 return; 2497 } 2498 if (mDefaultConnectionSequence != sequence) { 2499 if (DBG) log("handleInetConditionHoldEnd: event hold for obsolete network - ignoring"); 2500 return; 2501 } 2502 // TODO: Figure out why this optimization sometimes causes a 2503 // change in mDefaultInetCondition to be missed and the 2504 // UI to not be updated. 2505 //if (mDefaultInetConditionPublished == mDefaultInetCondition) { 2506 // if (DBG) log("no change in condition - aborting"); 2507 // return; 2508 //} 2509 NetworkInfo networkInfo = getNetworkInfoForType(mActiveDefaultNetwork); 2510 if (networkInfo.isConnected() == false) { 2511 if (DBG) log("handleInetConditionHoldEnd: default network not connected - ignoring"); 2512 return; 2513 } 2514 mDefaultInetConditionPublished = mDefaultInetCondition; 2515 sendInetConditionBroadcast(networkInfo); 2516 return; 2517 } 2518 2519 public ProxyInfo getProxy() { 2520 // this information is already available as a world read/writable jvm property 2521 // so this API change wouldn't have a benifit. It also breaks the passing 2522 // of proxy info to all the JVMs. 2523 // enforceAccessPermission(); 2524 synchronized (mProxyLock) { 2525 ProxyInfo ret = mGlobalProxy; 2526 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 2527 return ret; 2528 } 2529 } 2530 2531 public void setGlobalProxy(ProxyInfo proxyProperties) { 2532 enforceConnectivityInternalPermission(); 2533 2534 synchronized (mProxyLock) { 2535 if (proxyProperties == mGlobalProxy) return; 2536 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 2537 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 2538 2539 String host = ""; 2540 int port = 0; 2541 String exclList = ""; 2542 String pacFileUrl = ""; 2543 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 2544 (proxyProperties.getPacFileUrl() != null))) { 2545 if (!proxyProperties.isValid()) { 2546 if (DBG) 2547 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2548 return; 2549 } 2550 mGlobalProxy = new ProxyInfo(proxyProperties); 2551 host = mGlobalProxy.getHost(); 2552 port = mGlobalProxy.getPort(); 2553 exclList = mGlobalProxy.getExclusionListAsString(); 2554 if (proxyProperties.getPacFileUrl() != null) { 2555 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 2556 } 2557 } else { 2558 mGlobalProxy = null; 2559 } 2560 ContentResolver res = mContext.getContentResolver(); 2561 final long token = Binder.clearCallingIdentity(); 2562 try { 2563 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 2564 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 2565 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 2566 exclList); 2567 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 2568 } finally { 2569 Binder.restoreCallingIdentity(token); 2570 } 2571 } 2572 2573 if (mGlobalProxy == null) { 2574 proxyProperties = mDefaultProxy; 2575 } 2576 sendProxyBroadcast(proxyProperties); 2577 } 2578 2579 private void loadGlobalProxy() { 2580 ContentResolver res = mContext.getContentResolver(); 2581 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 2582 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 2583 String exclList = Settings.Global.getString(res, 2584 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 2585 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 2586 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 2587 ProxyInfo proxyProperties; 2588 if (!TextUtils.isEmpty(pacFileUrl)) { 2589 proxyProperties = new ProxyInfo(pacFileUrl); 2590 } else { 2591 proxyProperties = new ProxyInfo(host, port, exclList); 2592 } 2593 if (!proxyProperties.isValid()) { 2594 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2595 return; 2596 } 2597 2598 synchronized (mProxyLock) { 2599 mGlobalProxy = proxyProperties; 2600 } 2601 } 2602 } 2603 2604 public ProxyInfo getGlobalProxy() { 2605 // this information is already available as a world read/writable jvm property 2606 // so this API change wouldn't have a benifit. It also breaks the passing 2607 // of proxy info to all the JVMs. 2608 // enforceAccessPermission(); 2609 synchronized (mProxyLock) { 2610 return mGlobalProxy; 2611 } 2612 } 2613 2614 private void handleApplyDefaultProxy(ProxyInfo proxy) { 2615 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 2616 && (proxy.getPacFileUrl() == null)) { 2617 proxy = null; 2618 } 2619 synchronized (mProxyLock) { 2620 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 2621 if (mDefaultProxy == proxy) return; // catches repeated nulls 2622 if (proxy != null && !proxy.isValid()) { 2623 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 2624 return; 2625 } 2626 2627 // This call could be coming from the PacManager, containing the port of the local 2628 // proxy. If this new proxy matches the global proxy then copy this proxy to the 2629 // global (to get the correct local port), and send a broadcast. 2630 // TODO: Switch PacManager to have its own message to send back rather than 2631 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 2632 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 2633 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 2634 mGlobalProxy = proxy; 2635 sendProxyBroadcast(mGlobalProxy); 2636 return; 2637 } 2638 mDefaultProxy = proxy; 2639 2640 if (mGlobalProxy != null) return; 2641 if (!mDefaultProxyDisabled) { 2642 sendProxyBroadcast(proxy); 2643 } 2644 } 2645 } 2646 2647 private void handleDeprecatedGlobalHttpProxy() { 2648 String proxy = Settings.Global.getString(mContext.getContentResolver(), 2649 Settings.Global.HTTP_PROXY); 2650 if (!TextUtils.isEmpty(proxy)) { 2651 String data[] = proxy.split(":"); 2652 if (data.length == 0) { 2653 return; 2654 } 2655 2656 String proxyHost = data[0]; 2657 int proxyPort = 8080; 2658 if (data.length > 1) { 2659 try { 2660 proxyPort = Integer.parseInt(data[1]); 2661 } catch (NumberFormatException e) { 2662 return; 2663 } 2664 } 2665 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 2666 setGlobalProxy(p); 2667 } 2668 } 2669 2670 private void sendProxyBroadcast(ProxyInfo proxy) { 2671 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 2672 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 2673 if (DBG) log("sending Proxy Broadcast for " + proxy); 2674 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 2675 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 2676 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2677 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 2678 final long ident = Binder.clearCallingIdentity(); 2679 try { 2680 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2681 } finally { 2682 Binder.restoreCallingIdentity(ident); 2683 } 2684 } 2685 2686 private static class SettingsObserver extends ContentObserver { 2687 private int mWhat; 2688 private Handler mHandler; 2689 SettingsObserver(Handler handler, int what) { 2690 super(handler); 2691 mHandler = handler; 2692 mWhat = what; 2693 } 2694 2695 void observe(Context context) { 2696 ContentResolver resolver = context.getContentResolver(); 2697 resolver.registerContentObserver(Settings.Global.getUriFor( 2698 Settings.Global.HTTP_PROXY), false, this); 2699 } 2700 2701 @Override 2702 public void onChange(boolean selfChange) { 2703 mHandler.obtainMessage(mWhat).sendToTarget(); 2704 } 2705 } 2706 2707 private static void log(String s) { 2708 Slog.d(TAG, s); 2709 } 2710 2711 private static void loge(String s) { 2712 Slog.e(TAG, s); 2713 } 2714 2715 int convertFeatureToNetworkType(int networkType, String feature) { 2716 int usedNetworkType = networkType; 2717 2718 if(networkType == ConnectivityManager.TYPE_MOBILE) { 2719 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 2720 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 2721 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 2722 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 2723 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 2724 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 2725 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 2726 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 2727 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 2728 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 2729 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 2730 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 2731 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 2732 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 2733 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 2734 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { 2735 usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; 2736 } else { 2737 Slog.e(TAG, "Can't match any mobile netTracker!"); 2738 } 2739 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 2740 if (TextUtils.equals(feature, "p2p")) { 2741 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 2742 } else { 2743 Slog.e(TAG, "Can't match any wifi netTracker!"); 2744 } 2745 } else { 2746 Slog.e(TAG, "Unexpected network type"); 2747 } 2748 return usedNetworkType; 2749 } 2750 2751 private static <T> T checkNotNull(T value, String message) { 2752 if (value == null) { 2753 throw new NullPointerException(message); 2754 } 2755 return value; 2756 } 2757 2758 /** 2759 * Prepare for a VPN application. This method is used by VpnDialogs 2760 * and not available in ConnectivityManager. Permissions are checked 2761 * in Vpn class. 2762 * @hide 2763 */ 2764 @Override 2765 public boolean prepareVpn(String oldPackage, String newPackage) { 2766 throwIfLockdownEnabled(); 2767 int user = UserHandle.getUserId(Binder.getCallingUid()); 2768 synchronized(mVpns) { 2769 return mVpns.get(user).prepare(oldPackage, newPackage); 2770 } 2771 } 2772 2773 /** 2774 * Configure a TUN interface and return its file descriptor. Parameters 2775 * are encoded and opaque to this class. This method is used by VpnBuilder 2776 * and not available in ConnectivityManager. Permissions are checked in 2777 * Vpn class. 2778 * @hide 2779 */ 2780 @Override 2781 public ParcelFileDescriptor establishVpn(VpnConfig config) { 2782 throwIfLockdownEnabled(); 2783 int user = UserHandle.getUserId(Binder.getCallingUid()); 2784 synchronized(mVpns) { 2785 return mVpns.get(user).establish(config); 2786 } 2787 } 2788 2789 /** 2790 * Start legacy VPN, controlling native daemons as needed. Creates a 2791 * secondary thread to perform connection work, returning quickly. 2792 */ 2793 @Override 2794 public void startLegacyVpn(VpnProfile profile) { 2795 throwIfLockdownEnabled(); 2796 final LinkProperties egress = getActiveLinkProperties(); 2797 if (egress == null) { 2798 throw new IllegalStateException("Missing active network connection"); 2799 } 2800 int user = UserHandle.getUserId(Binder.getCallingUid()); 2801 synchronized(mVpns) { 2802 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 2803 } 2804 } 2805 2806 /** 2807 * Return the information of the ongoing legacy VPN. This method is used 2808 * by VpnSettings and not available in ConnectivityManager. Permissions 2809 * are checked in Vpn class. 2810 * @hide 2811 */ 2812 @Override 2813 public LegacyVpnInfo getLegacyVpnInfo() { 2814 throwIfLockdownEnabled(); 2815 int user = UserHandle.getUserId(Binder.getCallingUid()); 2816 synchronized(mVpns) { 2817 return mVpns.get(user).getLegacyVpnInfo(); 2818 } 2819 } 2820 2821 /** 2822 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 2823 * not available in ConnectivityManager. 2824 * Permissions are checked in Vpn class. 2825 * @hide 2826 */ 2827 @Override 2828 public VpnConfig getVpnConfig() { 2829 int user = UserHandle.getUserId(Binder.getCallingUid()); 2830 synchronized(mVpns) { 2831 return mVpns.get(user).getVpnConfig(); 2832 } 2833 } 2834 2835 @Override 2836 public boolean updateLockdownVpn() { 2837 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 2838 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 2839 return false; 2840 } 2841 2842 // Tear down existing lockdown if profile was removed 2843 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 2844 if (mLockdownEnabled) { 2845 if (!mKeyStore.isUnlocked()) { 2846 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 2847 return false; 2848 } 2849 2850 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 2851 final VpnProfile profile = VpnProfile.decode( 2852 profileName, mKeyStore.get(Credentials.VPN + profileName)); 2853 int user = UserHandle.getUserId(Binder.getCallingUid()); 2854 synchronized(mVpns) { 2855 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 2856 profile)); 2857 } 2858 } else { 2859 setLockdownTracker(null); 2860 } 2861 2862 return true; 2863 } 2864 2865 /** 2866 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 2867 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 2868 */ 2869 private void setLockdownTracker(LockdownVpnTracker tracker) { 2870 // Shutdown any existing tracker 2871 final LockdownVpnTracker existing = mLockdownTracker; 2872 mLockdownTracker = null; 2873 if (existing != null) { 2874 existing.shutdown(); 2875 } 2876 2877 try { 2878 if (tracker != null) { 2879 mNetd.setFirewallEnabled(true); 2880 mNetd.setFirewallInterfaceRule("lo", true); 2881 mLockdownTracker = tracker; 2882 mLockdownTracker.init(); 2883 } else { 2884 mNetd.setFirewallEnabled(false); 2885 } 2886 } catch (RemoteException e) { 2887 // ignored; NMS lives inside system_server 2888 } 2889 } 2890 2891 private void throwIfLockdownEnabled() { 2892 if (mLockdownEnabled) { 2893 throw new IllegalStateException("Unavailable in lockdown mode"); 2894 } 2895 } 2896 2897 public void supplyMessenger(int networkType, Messenger messenger) { 2898 enforceConnectivityInternalPermission(); 2899 2900 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 2901 mNetTrackers[networkType].supplyMessenger(messenger); 2902 } 2903 } 2904 2905 public int findConnectionTypeForIface(String iface) { 2906 enforceConnectivityInternalPermission(); 2907 2908 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 2909 for (NetworkStateTracker tracker : mNetTrackers) { 2910 if (tracker != null) { 2911 LinkProperties lp = tracker.getLinkProperties(); 2912 if (lp != null && iface.equals(lp.getInterfaceName())) { 2913 return tracker.getNetworkInfo().getType(); 2914 } 2915 } 2916 } 2917 return ConnectivityManager.TYPE_NONE; 2918 } 2919 2920 /** 2921 * Have mobile data fail fast if enabled. 2922 * 2923 * @param enabled DctConstants.ENABLED/DISABLED 2924 */ 2925 private void setEnableFailFastMobileData(int enabled) { 2926 int tag; 2927 2928 if (enabled == DctConstants.ENABLED) { 2929 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 2930 } else { 2931 tag = mEnableFailFastMobileDataTag.get(); 2932 } 2933 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 2934 enabled)); 2935 } 2936 2937 private boolean isMobileDataStateTrackerReady() { 2938 MobileDataStateTracker mdst = 2939 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 2940 return (mdst != null) && (mdst.isReady()); 2941 } 2942 2943 /** 2944 * The ResultReceiver resultCode for checkMobileProvisioning (CMP_RESULT_CODE) 2945 */ 2946 2947 /** 2948 * No connection was possible to the network. 2949 * This is NOT a warm sim. 2950 */ 2951 private static final int CMP_RESULT_CODE_NO_CONNECTION = 0; 2952 2953 /** 2954 * A connection was made to the internet, all is well. 2955 * This is NOT a warm sim. 2956 */ 2957 private static final int CMP_RESULT_CODE_CONNECTABLE = 1; 2958 2959 /** 2960 * A connection was made but no dns server was available to resolve a name to address. 2961 * This is NOT a warm sim since provisioning network is supported. 2962 */ 2963 private static final int CMP_RESULT_CODE_NO_DNS = 2; 2964 2965 /** 2966 * A connection was made but could not open a TCP connection. 2967 * This is NOT a warm sim since provisioning network is supported. 2968 */ 2969 private static final int CMP_RESULT_CODE_NO_TCP_CONNECTION = 3; 2970 2971 /** 2972 * A connection was made but there was a redirection, we appear to be in walled garden. 2973 * This is an indication of a warm sim on a mobile network such as T-Mobile. 2974 */ 2975 private static final int CMP_RESULT_CODE_REDIRECTED = 4; 2976 2977 /** 2978 * The mobile network is a provisioning network. 2979 * This is an indication of a warm sim on a mobile network such as AT&T. 2980 */ 2981 private static final int CMP_RESULT_CODE_PROVISIONING_NETWORK = 5; 2982 2983 /** 2984 * The mobile network is provisioning 2985 */ 2986 private static final int CMP_RESULT_CODE_IS_PROVISIONING = 6; 2987 2988 private AtomicBoolean mIsProvisioningNetwork = new AtomicBoolean(false); 2989 private AtomicBoolean mIsStartingProvisioning = new AtomicBoolean(false); 2990 2991 private AtomicBoolean mIsCheckingMobileProvisioning = new AtomicBoolean(false); 2992 2993 @Override 2994 public int checkMobileProvisioning(int suggestedTimeOutMs) { 2995 int timeOutMs = -1; 2996 if (DBG) log("checkMobileProvisioning: E suggestedTimeOutMs=" + suggestedTimeOutMs); 2997 enforceConnectivityInternalPermission(); 2998 2999 final long token = Binder.clearCallingIdentity(); 3000 try { 3001 timeOutMs = suggestedTimeOutMs; 3002 if (suggestedTimeOutMs > CheckMp.MAX_TIMEOUT_MS) { 3003 timeOutMs = CheckMp.MAX_TIMEOUT_MS; 3004 } 3005 3006 // Check that mobile networks are supported 3007 if (!isNetworkSupported(ConnectivityManager.TYPE_MOBILE) 3008 || !isNetworkSupported(ConnectivityManager.TYPE_MOBILE_HIPRI)) { 3009 if (DBG) log("checkMobileProvisioning: X no mobile network"); 3010 return timeOutMs; 3011 } 3012 3013 // If we're already checking don't do it again 3014 // TODO: Add a queue of results... 3015 if (mIsCheckingMobileProvisioning.getAndSet(true)) { 3016 if (DBG) log("checkMobileProvisioning: X already checking ignore for the moment"); 3017 return timeOutMs; 3018 } 3019 3020 // Start off with mobile notification off 3021 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3022 3023 CheckMp checkMp = new CheckMp(mContext, this); 3024 CheckMp.CallBack cb = new CheckMp.CallBack() { 3025 @Override 3026 void onComplete(Integer result) { 3027 if (DBG) log("CheckMp.onComplete: result=" + result); 3028 NetworkInfo ni = 3029 mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI].getNetworkInfo(); 3030 switch(result) { 3031 case CMP_RESULT_CODE_CONNECTABLE: 3032 case CMP_RESULT_CODE_NO_CONNECTION: 3033 case CMP_RESULT_CODE_NO_DNS: 3034 case CMP_RESULT_CODE_NO_TCP_CONNECTION: { 3035 if (DBG) log("CheckMp.onComplete: ignore, connected or no connection"); 3036 break; 3037 } 3038 case CMP_RESULT_CODE_REDIRECTED: { 3039 if (DBG) log("CheckMp.onComplete: warm sim"); 3040 String url = getMobileProvisioningUrl(); 3041 if (TextUtils.isEmpty(url)) { 3042 url = getMobileRedirectedProvisioningUrl(); 3043 } 3044 if (TextUtils.isEmpty(url) == false) { 3045 if (DBG) log("CheckMp.onComplete: warm (redirected), url=" + url); 3046 setProvNotificationVisible(true, 3047 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 3048 url); 3049 } else { 3050 if (DBG) log("CheckMp.onComplete: warm (redirected), no url"); 3051 } 3052 break; 3053 } 3054 case CMP_RESULT_CODE_PROVISIONING_NETWORK: { 3055 String url = getMobileProvisioningUrl(); 3056 if (TextUtils.isEmpty(url) == false) { 3057 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), url=" + url); 3058 setProvNotificationVisible(true, 3059 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 3060 url); 3061 // Mark that we've got a provisioning network and 3062 // Disable Mobile Data until user actually starts provisioning. 3063 mIsProvisioningNetwork.set(true); 3064 MobileDataStateTracker mdst = (MobileDataStateTracker) 3065 mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3066 3067 // Disable radio until user starts provisioning 3068 mdst.setRadio(false); 3069 } else { 3070 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), no url"); 3071 } 3072 break; 3073 } 3074 case CMP_RESULT_CODE_IS_PROVISIONING: { 3075 // FIXME: Need to know when provisioning is done. Probably we can 3076 // check the completion status if successful we're done if we 3077 // "timedout" or still connected to provisioning APN turn off data? 3078 if (DBG) log("CheckMp.onComplete: provisioning started"); 3079 mIsStartingProvisioning.set(false); 3080 break; 3081 } 3082 default: { 3083 loge("CheckMp.onComplete: ignore unexpected result=" + result); 3084 break; 3085 } 3086 } 3087 mIsCheckingMobileProvisioning.set(false); 3088 } 3089 }; 3090 CheckMp.Params params = 3091 new CheckMp.Params(checkMp.getDefaultUrl(), timeOutMs, cb); 3092 if (DBG) log("checkMobileProvisioning: params=" + params); 3093 // TODO: Reenable when calls to the now defunct 3094 // MobileDataStateTracker.isProvisioningNetwork() are removed. 3095 // This code should be moved to the Telephony code. 3096 // checkMp.execute(params); 3097 } finally { 3098 Binder.restoreCallingIdentity(token); 3099 if (DBG) log("checkMobileProvisioning: X"); 3100 } 3101 return timeOutMs; 3102 } 3103 3104 static class CheckMp extends 3105 AsyncTask<CheckMp.Params, Void, Integer> { 3106 private static final String CHECKMP_TAG = "CheckMp"; 3107 3108 // adb shell setprop persist.checkmp.testfailures 1 to enable testing failures 3109 private static boolean mTestingFailures; 3110 3111 // Choosing 4 loops as half of them will use HTTPS and the other half HTTP 3112 private static final int MAX_LOOPS = 4; 3113 3114 // Number of milli-seconds to complete all of the retires 3115 public static final int MAX_TIMEOUT_MS = 60000; 3116 3117 // The socket should retry only 5 seconds, the default is longer 3118 private static final int SOCKET_TIMEOUT_MS = 5000; 3119 3120 // Sleep time for network errors 3121 private static final int NET_ERROR_SLEEP_SEC = 3; 3122 3123 // Sleep time for network route establishment 3124 private static final int NET_ROUTE_ESTABLISHMENT_SLEEP_SEC = 3; 3125 3126 // Short sleep time for polling :( 3127 private static final int POLLING_SLEEP_SEC = 1; 3128 3129 private Context mContext; 3130 private ConnectivityService mCs; 3131 private TelephonyManager mTm; 3132 private Params mParams; 3133 3134 /** 3135 * Parameters for AsyncTask.execute 3136 */ 3137 static class Params { 3138 private String mUrl; 3139 private long mTimeOutMs; 3140 private CallBack mCb; 3141 3142 Params(String url, long timeOutMs, CallBack cb) { 3143 mUrl = url; 3144 mTimeOutMs = timeOutMs; 3145 mCb = cb; 3146 } 3147 3148 @Override 3149 public String toString() { 3150 return "{" + " url=" + mUrl + " mTimeOutMs=" + mTimeOutMs + " mCb=" + mCb + "}"; 3151 } 3152 } 3153 3154 // As explained to me by Brian Carlstrom and Kenny Root, Certificates can be 3155 // issued by name or ip address, for Google its by name so when we construct 3156 // this HostnameVerifier we'll pass the original Uri and use it to verify 3157 // the host. If the host name in the original uril fails we'll test the 3158 // hostname parameter just incase things change. 3159 static class CheckMpHostnameVerifier implements HostnameVerifier { 3160 Uri mOrgUri; 3161 3162 CheckMpHostnameVerifier(Uri orgUri) { 3163 mOrgUri = orgUri; 3164 } 3165 3166 @Override 3167 public boolean verify(String hostname, SSLSession session) { 3168 HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier(); 3169 String orgUriHost = mOrgUri.getHost(); 3170 boolean retVal = hv.verify(orgUriHost, session) || hv.verify(hostname, session); 3171 if (DBG) { 3172 log("isMobileOk: hostnameVerify retVal=" + retVal + " hostname=" + hostname 3173 + " orgUriHost=" + orgUriHost); 3174 } 3175 return retVal; 3176 } 3177 } 3178 3179 /** 3180 * The call back object passed in Params. onComplete will be called 3181 * on the main thread. 3182 */ 3183 abstract static class CallBack { 3184 // Called on the main thread. 3185 abstract void onComplete(Integer result); 3186 } 3187 3188 public CheckMp(Context context, ConnectivityService cs) { 3189 if (Build.IS_DEBUGGABLE) { 3190 mTestingFailures = 3191 SystemProperties.getInt("persist.checkmp.testfailures", 0) == 1; 3192 } else { 3193 mTestingFailures = false; 3194 } 3195 3196 mContext = context; 3197 mCs = cs; 3198 3199 // Setup access to TelephonyService we'll be using. 3200 mTm = (TelephonyManager) mContext.getSystemService( 3201 Context.TELEPHONY_SERVICE); 3202 } 3203 3204 /** 3205 * Get the default url to use for the test. 3206 */ 3207 public String getDefaultUrl() { 3208 // See http://go/clientsdns for usage approval 3209 String server = Settings.Global.getString(mContext.getContentResolver(), 3210 Settings.Global.CAPTIVE_PORTAL_SERVER); 3211 if (server == null) { 3212 server = "clients3.google.com"; 3213 } 3214 return "http://" + server + "/generate_204"; 3215 } 3216 3217 /** 3218 * Detect if its possible to connect to the http url. DNS based detection techniques 3219 * do not work at all hotspots. The best way to check is to perform a request to 3220 * a known address that fetches the data we expect. 3221 */ 3222 private synchronized Integer isMobileOk(Params params) { 3223 Integer result = CMP_RESULT_CODE_NO_CONNECTION; 3224 Uri orgUri = Uri.parse(params.mUrl); 3225 Random rand = new Random(); 3226 mParams = params; 3227 3228 if (mCs.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false) { 3229 result = CMP_RESULT_CODE_NO_CONNECTION; 3230 log("isMobileOk: X not mobile capable result=" + result); 3231 return result; 3232 } 3233 3234 if (mCs.mIsStartingProvisioning.get()) { 3235 result = CMP_RESULT_CODE_IS_PROVISIONING; 3236 log("isMobileOk: X is provisioning result=" + result); 3237 return result; 3238 } 3239 3240 // See if we've already determined we've got a provisioning connection, 3241 // if so we don't need to do anything active. 3242 MobileDataStateTracker mdstDefault = (MobileDataStateTracker) 3243 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3244 boolean isDefaultProvisioning = mdstDefault.isProvisioningNetwork(); 3245 log("isMobileOk: isDefaultProvisioning=" + isDefaultProvisioning); 3246 3247 MobileDataStateTracker mdstHipri = (MobileDataStateTracker) 3248 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3249 boolean isHipriProvisioning = mdstHipri.isProvisioningNetwork(); 3250 log("isMobileOk: isHipriProvisioning=" + isHipriProvisioning); 3251 3252 if (isDefaultProvisioning || isHipriProvisioning) { 3253 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3254 log("isMobileOk: X default || hipri is provisioning result=" + result); 3255 return result; 3256 } 3257 3258 try { 3259 // Continue trying to connect until time has run out 3260 long endTime = SystemClock.elapsedRealtime() + params.mTimeOutMs; 3261 3262 if (!mCs.isMobileDataStateTrackerReady()) { 3263 // Wait for MobileDataStateTracker to be ready. 3264 if (DBG) log("isMobileOk: mdst is not ready"); 3265 while(SystemClock.elapsedRealtime() < endTime) { 3266 if (mCs.isMobileDataStateTrackerReady()) { 3267 // Enable fail fast as we'll do retries here and use a 3268 // hipri connection so the default connection stays active. 3269 if (DBG) log("isMobileOk: mdst ready, enable fail fast of mobile data"); 3270 mCs.setEnableFailFastMobileData(DctConstants.ENABLED); 3271 break; 3272 } 3273 sleep(POLLING_SLEEP_SEC); 3274 } 3275 } 3276 3277 log("isMobileOk: start hipri url=" + params.mUrl); 3278 3279 // First wait until we can start using hipri 3280 Binder binder = new Binder(); 3281/* 3282 while(SystemClock.elapsedRealtime() < endTime) { 3283 int ret = mCs.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3284 Phone.FEATURE_ENABLE_HIPRI, binder); 3285 if ((ret == PhoneConstants.APN_ALREADY_ACTIVE) 3286 || (ret == PhoneConstants.APN_REQUEST_STARTED)) { 3287 log("isMobileOk: hipri started"); 3288 break; 3289 } 3290 if (VDBG) log("isMobileOk: hipri not started yet"); 3291 result = CMP_RESULT_CODE_NO_CONNECTION; 3292 sleep(POLLING_SLEEP_SEC); 3293 } 3294*/ 3295 // Continue trying to connect until time has run out 3296 while(SystemClock.elapsedRealtime() < endTime) { 3297 try { 3298 // Wait for hipri to connect. 3299 // TODO: Don't poll and handle situation where hipri fails 3300 // because default is retrying. See b/9569540 3301 NetworkInfo.State state = mCs 3302 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3303 if (state != NetworkInfo.State.CONNECTED) { 3304 if (true/*VDBG*/) { 3305 log("isMobileOk: not connected ni=" + 3306 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3307 } 3308 sleep(POLLING_SLEEP_SEC); 3309 result = CMP_RESULT_CODE_NO_CONNECTION; 3310 continue; 3311 } 3312 3313 // Hipri has started check if this is a provisioning url 3314 MobileDataStateTracker mdst = (MobileDataStateTracker) 3315 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3316 if (mdst.isProvisioningNetwork()) { 3317 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3318 if (DBG) log("isMobileOk: X isProvisioningNetwork result=" + result); 3319 return result; 3320 } else { 3321 if (DBG) log("isMobileOk: isProvisioningNetwork is false, continue"); 3322 } 3323 3324 // Get of the addresses associated with the url host. We need to use the 3325 // address otherwise HttpURLConnection object will use the name to get 3326 // the addresses and will try every address but that will bypass the 3327 // route to host we setup and the connection could succeed as the default 3328 // interface might be connected to the internet via wifi or other interface. 3329 InetAddress[] addresses; 3330 try { 3331 addresses = InetAddress.getAllByName(orgUri.getHost()); 3332 } catch (UnknownHostException e) { 3333 result = CMP_RESULT_CODE_NO_DNS; 3334 log("isMobileOk: X UnknownHostException result=" + result); 3335 return result; 3336 } 3337 log("isMobileOk: addresses=" + inetAddressesToString(addresses)); 3338 3339 // Get the type of addresses supported by this link 3340 LinkProperties lp = mCs.getLinkPropertiesForTypeInternal( 3341 ConnectivityManager.TYPE_MOBILE_HIPRI); 3342 boolean linkHasIpv4 = lp.hasIPv4Address(); 3343 boolean linkHasIpv6 = lp.hasGlobalIPv6Address(); 3344 log("isMobileOk: linkHasIpv4=" + linkHasIpv4 3345 + " linkHasIpv6=" + linkHasIpv6); 3346 3347 final ArrayList<InetAddress> validAddresses = 3348 new ArrayList<InetAddress>(addresses.length); 3349 3350 for (InetAddress addr : addresses) { 3351 if (((addr instanceof Inet4Address) && linkHasIpv4) || 3352 ((addr instanceof Inet6Address) && linkHasIpv6)) { 3353 validAddresses.add(addr); 3354 } 3355 } 3356 3357 if (validAddresses.size() == 0) { 3358 return CMP_RESULT_CODE_NO_CONNECTION; 3359 } 3360 3361 int addrTried = 0; 3362 while (true) { 3363 // Loop through at most MAX_LOOPS valid addresses or until 3364 // we run out of time 3365 if (addrTried++ >= MAX_LOOPS) { 3366 log("isMobileOk: too many loops tried - giving up"); 3367 break; 3368 } 3369 if (SystemClock.elapsedRealtime() >= endTime) { 3370 log("isMobileOk: spend too much time - giving up"); 3371 break; 3372 } 3373 3374 InetAddress hostAddr = validAddresses.get(rand.nextInt( 3375 validAddresses.size())); 3376 3377 // Make a route to host so we check the specific interface. 3378 if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI, 3379 hostAddr.getAddress())) { 3380 // Wait a short time to be sure the route is established ?? 3381 log("isMobileOk:" 3382 + " wait to establish route to hostAddr=" + hostAddr); 3383 sleep(NET_ROUTE_ESTABLISHMENT_SLEEP_SEC); 3384 } else { 3385 log("isMobileOk:" 3386 + " could not establish route to hostAddr=" + hostAddr); 3387 // Wait a short time before the next attempt 3388 sleep(NET_ERROR_SLEEP_SEC); 3389 continue; 3390 } 3391 3392 // Rewrite the url to have numeric address to use the specific route 3393 // using http for half the attempts and https for the other half. 3394 // Doing https first and http second as on a redirected walled garden 3395 // such as t-mobile uses we get a SocketTimeoutException: "SSL 3396 // handshake timed out" which we declare as 3397 // CMP_RESULT_CODE_NO_TCP_CONNECTION. We could change this, but by 3398 // having http second we will be using logic used for some time. 3399 URL newUrl; 3400 String scheme = (addrTried <= (MAX_LOOPS/2)) ? "https" : "http"; 3401 newUrl = new URL(scheme, hostAddr.getHostAddress(), 3402 orgUri.getPath()); 3403 log("isMobileOk: newUrl=" + newUrl); 3404 3405 HttpURLConnection urlConn = null; 3406 try { 3407 // Open the connection set the request headers and get the response 3408 urlConn = (HttpURLConnection)newUrl.openConnection( 3409 java.net.Proxy.NO_PROXY); 3410 if (scheme.equals("https")) { 3411 ((HttpsURLConnection)urlConn).setHostnameVerifier( 3412 new CheckMpHostnameVerifier(orgUri)); 3413 } 3414 urlConn.setInstanceFollowRedirects(false); 3415 urlConn.setConnectTimeout(SOCKET_TIMEOUT_MS); 3416 urlConn.setReadTimeout(SOCKET_TIMEOUT_MS); 3417 urlConn.setUseCaches(false); 3418 urlConn.setAllowUserInteraction(false); 3419 // Set the "Connection" to "Close" as by default "Keep-Alive" 3420 // is used which is useless in this case. 3421 urlConn.setRequestProperty("Connection", "close"); 3422 int responseCode = urlConn.getResponseCode(); 3423 3424 // For debug display the headers 3425 Map<String, List<String>> headers = urlConn.getHeaderFields(); 3426 log("isMobileOk: headers=" + headers); 3427 3428 // Close the connection 3429 urlConn.disconnect(); 3430 urlConn = null; 3431 3432 if (mTestingFailures) { 3433 // Pretend no connection, this tests using http and https 3434 result = CMP_RESULT_CODE_NO_CONNECTION; 3435 log("isMobileOk: TESTING_FAILURES, pretend no connction"); 3436 continue; 3437 } 3438 3439 if (responseCode == 204) { 3440 // Return 3441 result = CMP_RESULT_CODE_CONNECTABLE; 3442 log("isMobileOk: X got expected responseCode=" + responseCode 3443 + " result=" + result); 3444 return result; 3445 } else { 3446 // Retry to be sure this was redirected, we've gotten 3447 // occasions where a server returned 200 even though 3448 // the device didn't have a "warm" sim. 3449 log("isMobileOk: not expected responseCode=" + responseCode); 3450 // TODO - it would be nice in the single-address case to do 3451 // another DNS resolve here, but flushing the cache is a bit 3452 // heavy-handed. 3453 result = CMP_RESULT_CODE_REDIRECTED; 3454 } 3455 } catch (Exception e) { 3456 log("isMobileOk: HttpURLConnection Exception" + e); 3457 result = CMP_RESULT_CODE_NO_TCP_CONNECTION; 3458 if (urlConn != null) { 3459 urlConn.disconnect(); 3460 urlConn = null; 3461 } 3462 sleep(NET_ERROR_SLEEP_SEC); 3463 continue; 3464 } 3465 } 3466 log("isMobileOk: X loops|timed out result=" + result); 3467 return result; 3468 } catch (Exception e) { 3469 log("isMobileOk: Exception e=" + e); 3470 continue; 3471 } 3472 } 3473 log("isMobileOk: timed out"); 3474 } finally { 3475 log("isMobileOk: F stop hipri"); 3476 mCs.setEnableFailFastMobileData(DctConstants.DISABLED); 3477// mCs.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3478// Phone.FEATURE_ENABLE_HIPRI); 3479 3480 // Wait for hipri to disconnect. 3481 long endTime = SystemClock.elapsedRealtime() + 5000; 3482 3483 while(SystemClock.elapsedRealtime() < endTime) { 3484 NetworkInfo.State state = mCs 3485 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3486 if (state != NetworkInfo.State.DISCONNECTED) { 3487 if (VDBG) { 3488 log("isMobileOk: connected ni=" + 3489 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3490 } 3491 sleep(POLLING_SLEEP_SEC); 3492 continue; 3493 } 3494 } 3495 3496 log("isMobileOk: X result=" + result); 3497 } 3498 return result; 3499 } 3500 3501 @Override 3502 protected Integer doInBackground(Params... params) { 3503 return isMobileOk(params[0]); 3504 } 3505 3506 @Override 3507 protected void onPostExecute(Integer result) { 3508 log("onPostExecute: result=" + result); 3509 if ((mParams != null) && (mParams.mCb != null)) { 3510 mParams.mCb.onComplete(result); 3511 } 3512 } 3513 3514 private String inetAddressesToString(InetAddress[] addresses) { 3515 StringBuffer sb = new StringBuffer(); 3516 boolean firstTime = true; 3517 for(InetAddress addr : addresses) { 3518 if (firstTime) { 3519 firstTime = false; 3520 } else { 3521 sb.append(","); 3522 } 3523 sb.append(addr); 3524 } 3525 return sb.toString(); 3526 } 3527 3528 private void printNetworkInfo() { 3529 boolean hasIccCard = mTm.hasIccCard(); 3530 int simState = mTm.getSimState(); 3531 log("hasIccCard=" + hasIccCard 3532 + " simState=" + simState); 3533 NetworkInfo[] ni = mCs.getAllNetworkInfo(); 3534 if (ni != null) { 3535 log("ni.length=" + ni.length); 3536 for (NetworkInfo netInfo: ni) { 3537 log("netInfo=" + netInfo.toString()); 3538 } 3539 } else { 3540 log("no network info ni=null"); 3541 } 3542 } 3543 3544 /** 3545 * Sleep for a few seconds then return. 3546 * @param seconds 3547 */ 3548 private static void sleep(int seconds) { 3549 long stopTime = System.nanoTime() + (seconds * 1000000000); 3550 long sleepTime; 3551 while ((sleepTime = stopTime - System.nanoTime()) > 0) { 3552 try { 3553 Thread.sleep(sleepTime / 1000000); 3554 } catch (InterruptedException ignored) { 3555 } 3556 } 3557 } 3558 3559 private static void log(String s) { 3560 Slog.d(ConnectivityService.TAG, "[" + CHECKMP_TAG + "] " + s); 3561 } 3562 } 3563 3564 // TODO: Move to ConnectivityManager and make public? 3565 private static final String CONNECTED_TO_PROVISIONING_NETWORK_ACTION = 3566 "com.android.server.connectivityservice.CONNECTED_TO_PROVISIONING_NETWORK_ACTION"; 3567 3568 private BroadcastReceiver mProvisioningReceiver = new BroadcastReceiver() { 3569 @Override 3570 public void onReceive(Context context, Intent intent) { 3571 if (intent.getAction().equals(CONNECTED_TO_PROVISIONING_NETWORK_ACTION)) { 3572 handleMobileProvisioningAction(intent.getStringExtra("EXTRA_URL")); 3573 } 3574 } 3575 }; 3576 3577 private void handleMobileProvisioningAction(String url) { 3578 // Mark notification as not visible 3579 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3580 3581 // Check airplane mode 3582 boolean isAirplaneModeOn = Settings.System.getInt(mContext.getContentResolver(), 3583 Settings.Global.AIRPLANE_MODE_ON, 0) == 1; 3584 // If provisioning network and not in airplane mode handle as a special case, 3585 // otherwise launch browser with the intent directly. 3586 if (mIsProvisioningNetwork.get() && !isAirplaneModeOn) { 3587 if (DBG) log("handleMobileProvisioningAction: on prov network enable then launch"); 3588 mIsProvisioningNetwork.set(false); 3589// mIsStartingProvisioning.set(true); 3590// MobileDataStateTracker mdst = (MobileDataStateTracker) 3591// mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3592 // Radio was disabled on CMP_RESULT_CODE_PROVISIONING_NETWORK, enable it here 3593// mdst.setRadio(true); 3594// mdst.setEnableFailFastMobileData(DctConstants.ENABLED); 3595// mdst.enableMobileProvisioning(url); 3596 } else { 3597 if (DBG) log("handleMobileProvisioningAction: not prov network"); 3598 mIsProvisioningNetwork.set(false); 3599 // Check for apps that can handle provisioning first 3600 Intent provisioningIntent = new Intent(TelephonyIntents.ACTION_CARRIER_SETUP); 3601 provisioningIntent.addCategory(TelephonyIntents.CATEGORY_MCCMNC_PREFIX 3602 + mTelephonyManager.getSimOperator()); 3603 if (mContext.getPackageManager().resolveActivity(provisioningIntent, 0 /* flags */) 3604 != null) { 3605 provisioningIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3606 Intent.FLAG_ACTIVITY_NEW_TASK); 3607 mContext.startActivity(provisioningIntent); 3608 } else { 3609 // If no apps exist, use standard URL ACTION_VIEW method 3610 Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, 3611 Intent.CATEGORY_APP_BROWSER); 3612 newIntent.setData(Uri.parse(url)); 3613 newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3614 Intent.FLAG_ACTIVITY_NEW_TASK); 3615 try { 3616 mContext.startActivity(newIntent); 3617 } catch (ActivityNotFoundException e) { 3618 loge("handleMobileProvisioningAction: startActivity failed" + e); 3619 } 3620 } 3621 } 3622 } 3623 3624 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 3625 private volatile boolean mIsNotificationVisible = false; 3626 3627 private void setProvNotificationVisible(boolean visible, int networkType, String extraInfo, 3628 String url) { 3629 if (DBG) { 3630 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 3631 + " extraInfo=" + extraInfo + " url=" + url); 3632 } 3633 Intent intent = null; 3634 PendingIntent pendingIntent = null; 3635 if (visible) { 3636 switch (networkType) { 3637 case ConnectivityManager.TYPE_WIFI: 3638 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3639 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3640 Intent.FLAG_ACTIVITY_NEW_TASK); 3641 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3642 break; 3643 case ConnectivityManager.TYPE_MOBILE: 3644 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3645 intent = new Intent(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 3646 intent.putExtra("EXTRA_URL", url); 3647 intent.setFlags(0); 3648 pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 3649 break; 3650 default: 3651 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3652 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3653 Intent.FLAG_ACTIVITY_NEW_TASK); 3654 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3655 break; 3656 } 3657 } 3658 // Concatenate the range of types onto the range of NetIDs. 3659 int id = MAX_NET_ID + 1 + (networkType - ConnectivityManager.TYPE_NONE); 3660 setProvNotificationVisibleIntent(visible, id, networkType, extraInfo, pendingIntent); 3661 } 3662 3663 /** 3664 * Show or hide network provisioning notificaitons. 3665 * 3666 * @param id an identifier that uniquely identifies this notification. This must match 3667 * between show and hide calls. We use the NetID value but for legacy callers 3668 * we concatenate the range of types with the range of NetIDs. 3669 */ 3670 private void setProvNotificationVisibleIntent(boolean visible, int id, int networkType, 3671 String extraInfo, PendingIntent intent) { 3672 if (DBG) { 3673 log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + 3674 networkType + " extraInfo=" + extraInfo); 3675 } 3676 3677 Resources r = Resources.getSystem(); 3678 NotificationManager notificationManager = (NotificationManager) mContext 3679 .getSystemService(Context.NOTIFICATION_SERVICE); 3680 3681 if (visible) { 3682 CharSequence title; 3683 CharSequence details; 3684 int icon; 3685 Notification notification = new Notification(); 3686 switch (networkType) { 3687 case ConnectivityManager.TYPE_WIFI: 3688 title = r.getString(R.string.wifi_available_sign_in, 0); 3689 details = r.getString(R.string.network_available_sign_in_detailed, 3690 extraInfo); 3691 icon = R.drawable.stat_notify_wifi_in_range; 3692 break; 3693 case ConnectivityManager.TYPE_MOBILE: 3694 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3695 title = r.getString(R.string.network_available_sign_in, 0); 3696 // TODO: Change this to pull from NetworkInfo once a printable 3697 // name has been added to it 3698 details = mTelephonyManager.getNetworkOperatorName(); 3699 icon = R.drawable.stat_notify_rssi_in_range; 3700 break; 3701 default: 3702 title = r.getString(R.string.network_available_sign_in, 0); 3703 details = r.getString(R.string.network_available_sign_in_detailed, 3704 extraInfo); 3705 icon = R.drawable.stat_notify_rssi_in_range; 3706 break; 3707 } 3708 3709 notification.when = 0; 3710 notification.icon = icon; 3711 notification.flags = Notification.FLAG_AUTO_CANCEL; 3712 notification.tickerText = title; 3713 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 3714 notification.contentIntent = intent; 3715 3716 try { 3717 notificationManager.notify(NOTIFICATION_ID, id, notification); 3718 } catch (NullPointerException npe) { 3719 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 3720 npe.printStackTrace(); 3721 } 3722 } else { 3723 try { 3724 notificationManager.cancel(NOTIFICATION_ID, id); 3725 } catch (NullPointerException npe) { 3726 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 3727 npe.printStackTrace(); 3728 } 3729 } 3730 mIsNotificationVisible = visible; 3731 } 3732 3733 /** Location to an updatable file listing carrier provisioning urls. 3734 * An example: 3735 * 3736 * <?xml version="1.0" encoding="utf-8"?> 3737 * <provisioningUrls> 3738 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 3739 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 3740 * </provisioningUrls> 3741 */ 3742 private static final String PROVISIONING_URL_PATH = 3743 "/data/misc/radio/provisioning_urls.xml"; 3744 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 3745 3746 /** XML tag for root element. */ 3747 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 3748 /** XML tag for individual url */ 3749 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 3750 /** XML tag for redirected url */ 3751 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 3752 /** XML attribute for mcc */ 3753 private static final String ATTR_MCC = "mcc"; 3754 /** XML attribute for mnc */ 3755 private static final String ATTR_MNC = "mnc"; 3756 3757 private static final int REDIRECTED_PROVISIONING = 1; 3758 private static final int PROVISIONING = 2; 3759 3760 private String getProvisioningUrlBaseFromFile(int type) { 3761 FileReader fileReader = null; 3762 XmlPullParser parser = null; 3763 Configuration config = mContext.getResources().getConfiguration(); 3764 String tagType; 3765 3766 switch (type) { 3767 case PROVISIONING: 3768 tagType = TAG_PROVISIONING_URL; 3769 break; 3770 case REDIRECTED_PROVISIONING: 3771 tagType = TAG_REDIRECTED_URL; 3772 break; 3773 default: 3774 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 3775 type); 3776 } 3777 3778 try { 3779 fileReader = new FileReader(mProvisioningUrlFile); 3780 parser = Xml.newPullParser(); 3781 parser.setInput(fileReader); 3782 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 3783 3784 while (true) { 3785 XmlUtils.nextElement(parser); 3786 3787 String element = parser.getName(); 3788 if (element == null) break; 3789 3790 if (element.equals(tagType)) { 3791 String mcc = parser.getAttributeValue(null, ATTR_MCC); 3792 try { 3793 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 3794 String mnc = parser.getAttributeValue(null, ATTR_MNC); 3795 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 3796 parser.next(); 3797 if (parser.getEventType() == XmlPullParser.TEXT) { 3798 return parser.getText(); 3799 } 3800 } 3801 } 3802 } catch (NumberFormatException e) { 3803 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 3804 } 3805 } 3806 } 3807 return null; 3808 } catch (FileNotFoundException e) { 3809 loge("Carrier Provisioning Urls file not found"); 3810 } catch (XmlPullParserException e) { 3811 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 3812 } catch (IOException e) { 3813 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 3814 } finally { 3815 if (fileReader != null) { 3816 try { 3817 fileReader.close(); 3818 } catch (IOException e) {} 3819 } 3820 } 3821 return null; 3822 } 3823 3824 @Override 3825 public String getMobileRedirectedProvisioningUrl() { 3826 enforceConnectivityInternalPermission(); 3827 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 3828 if (TextUtils.isEmpty(url)) { 3829 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 3830 } 3831 return url; 3832 } 3833 3834 @Override 3835 public String getMobileProvisioningUrl() { 3836 enforceConnectivityInternalPermission(); 3837 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 3838 if (TextUtils.isEmpty(url)) { 3839 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 3840 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 3841 } else { 3842 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 3843 } 3844 // populate the iccid, imei and phone number in the provisioning url. 3845 if (!TextUtils.isEmpty(url)) { 3846 String phoneNumber = mTelephonyManager.getLine1Number(); 3847 if (TextUtils.isEmpty(phoneNumber)) { 3848 phoneNumber = "0000000000"; 3849 } 3850 url = String.format(url, 3851 mTelephonyManager.getSimSerialNumber() /* ICCID */, 3852 mTelephonyManager.getDeviceId() /* IMEI */, 3853 phoneNumber /* Phone numer */); 3854 } 3855 3856 return url; 3857 } 3858 3859 @Override 3860 public void setProvisioningNotificationVisible(boolean visible, int networkType, 3861 String extraInfo, String url) { 3862 enforceConnectivityInternalPermission(); 3863 setProvNotificationVisible(visible, networkType, extraInfo, url); 3864 } 3865 3866 @Override 3867 public void setAirplaneMode(boolean enable) { 3868 enforceConnectivityInternalPermission(); 3869 final long ident = Binder.clearCallingIdentity(); 3870 try { 3871 final ContentResolver cr = mContext.getContentResolver(); 3872 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 3873 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 3874 intent.putExtra("state", enable); 3875 mContext.sendBroadcast(intent); 3876 } finally { 3877 Binder.restoreCallingIdentity(ident); 3878 } 3879 } 3880 3881 private void onUserStart(int userId) { 3882 synchronized(mVpns) { 3883 Vpn userVpn = mVpns.get(userId); 3884 if (userVpn != null) { 3885 loge("Starting user already has a VPN"); 3886 return; 3887 } 3888 userVpn = new Vpn(mHandler.getLooper(), mContext, mNetd, this, userId); 3889 mVpns.put(userId, userVpn); 3890 } 3891 } 3892 3893 private void onUserStop(int userId) { 3894 synchronized(mVpns) { 3895 Vpn userVpn = mVpns.get(userId); 3896 if (userVpn == null) { 3897 loge("Stopping user has no VPN"); 3898 return; 3899 } 3900 mVpns.delete(userId); 3901 } 3902 } 3903 3904 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 3905 @Override 3906 public void onReceive(Context context, Intent intent) { 3907 final String action = intent.getAction(); 3908 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3909 if (userId == UserHandle.USER_NULL) return; 3910 3911 if (Intent.ACTION_USER_STARTING.equals(action)) { 3912 onUserStart(userId); 3913 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 3914 onUserStop(userId); 3915 } 3916 } 3917 }; 3918 3919 @Override 3920 public LinkQualityInfo getLinkQualityInfo(int networkType) { 3921 enforceAccessPermission(); 3922 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 3923 return mNetTrackers[networkType].getLinkQualityInfo(); 3924 } else { 3925 return null; 3926 } 3927 } 3928 3929 @Override 3930 public LinkQualityInfo getActiveLinkQualityInfo() { 3931 enforceAccessPermission(); 3932 if (isNetworkTypeValid(mActiveDefaultNetwork) && 3933 mNetTrackers[mActiveDefaultNetwork] != null) { 3934 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 3935 } else { 3936 return null; 3937 } 3938 } 3939 3940 @Override 3941 public LinkQualityInfo[] getAllLinkQualityInfo() { 3942 enforceAccessPermission(); 3943 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 3944 for (NetworkStateTracker tracker : mNetTrackers) { 3945 if (tracker != null) { 3946 LinkQualityInfo li = tracker.getLinkQualityInfo(); 3947 if (li != null) { 3948 result.add(li); 3949 } 3950 } 3951 } 3952 3953 return result.toArray(new LinkQualityInfo[result.size()]); 3954 } 3955 3956 /* Infrastructure for network sampling */ 3957 3958 private void handleNetworkSamplingTimeout() { 3959 3960 log("Sampling interval elapsed, updating statistics .."); 3961 3962 // initialize list of interfaces .. 3963 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 3964 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 3965 for (NetworkStateTracker tracker : mNetTrackers) { 3966 if (tracker != null) { 3967 String ifaceName = tracker.getNetworkInterfaceName(); 3968 if (ifaceName != null) { 3969 mapIfaceToSample.put(ifaceName, null); 3970 } 3971 } 3972 } 3973 3974 // Read samples for all interfaces 3975 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 3976 3977 // process samples for all networks 3978 for (NetworkStateTracker tracker : mNetTrackers) { 3979 if (tracker != null) { 3980 String ifaceName = tracker.getNetworkInterfaceName(); 3981 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 3982 if (ss != null) { 3983 // end the previous sampling cycle 3984 tracker.stopSampling(ss); 3985 // start a new sampling cycle .. 3986 tracker.startSampling(ss); 3987 } 3988 } 3989 } 3990 3991 log("Done."); 3992 3993 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 3994 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 3995 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 3996 3997 if (DBG) log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 3998 3999 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 4000 } 4001 4002 /** 4003 * Sets a network sampling alarm. 4004 */ 4005 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 4006 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 4007 int alarmType; 4008 if (Resources.getSystem().getBoolean( 4009 R.bool.config_networkSamplingWakesDevice)) { 4010 alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP; 4011 } else { 4012 alarmType = AlarmManager.ELAPSED_REALTIME; 4013 } 4014 mAlarmManager.set(alarmType, wakeupTime, intent); 4015 } 4016 4017 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 4018 new HashMap<Messenger, NetworkFactoryInfo>(); 4019 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 4020 new HashMap<NetworkRequest, NetworkRequestInfo>(); 4021 4022 private static class NetworkFactoryInfo { 4023 public final String name; 4024 public final Messenger messenger; 4025 public final AsyncChannel asyncChannel; 4026 4027 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 4028 this.name = name; 4029 this.messenger = messenger; 4030 this.asyncChannel = asyncChannel; 4031 } 4032 } 4033 4034 /** 4035 * Tracks info about the requester. 4036 * Also used to notice when the calling process dies so we can self-expire 4037 */ 4038 private class NetworkRequestInfo implements IBinder.DeathRecipient { 4039 static final boolean REQUEST = true; 4040 static final boolean LISTEN = false; 4041 4042 final NetworkRequest request; 4043 IBinder mBinder; 4044 final int mPid; 4045 final int mUid; 4046 final Messenger messenger; 4047 final boolean isRequest; 4048 4049 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 4050 super(); 4051 messenger = m; 4052 request = r; 4053 mBinder = binder; 4054 mPid = getCallingPid(); 4055 mUid = getCallingUid(); 4056 this.isRequest = isRequest; 4057 4058 try { 4059 mBinder.linkToDeath(this, 0); 4060 } catch (RemoteException e) { 4061 binderDied(); 4062 } 4063 } 4064 4065 void unlinkDeathRecipient() { 4066 mBinder.unlinkToDeath(this, 0); 4067 } 4068 4069 public void binderDied() { 4070 log("ConnectivityService NetworkRequestInfo binderDied(" + 4071 request + ", " + mBinder + ")"); 4072 releaseNetworkRequest(request); 4073 } 4074 4075 public String toString() { 4076 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 4077 mPid + " for " + request; 4078 } 4079 } 4080 4081 @Override 4082 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 4083 Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { 4084 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 4085 == false) { 4086 enforceConnectivityInternalPermission(); 4087 } else { 4088 enforceChangePermission(); 4089 } 4090 4091 networkCapabilities = new NetworkCapabilities(networkCapabilities); 4092 4093 // if UID is restricted, don't allow them to bring up metered APNs 4094 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED) 4095 == false) { 4096 final int uidRules; 4097 synchronized(mRulesLock) { 4098 uidRules = mUidRules.get(Binder.getCallingUid(), RULE_ALLOW_ALL); 4099 } 4100 if ((uidRules & RULE_REJECT_METERED) != 0) { 4101 // we could silently fail or we can filter the available nets to only give 4102 // them those they have access to. Chose the more useful 4103 networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 4104 } 4105 } 4106 4107 if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { 4108 throw new IllegalArgumentException("Bad timeout specified"); 4109 } 4110 NetworkRequest networkRequest = new NetworkRequest(networkCapabilities, legacyType, 4111 nextNetworkRequestId()); 4112 if (DBG) log("requestNetwork for " + networkRequest); 4113 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4114 NetworkRequestInfo.REQUEST); 4115 4116 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 4117 if (timeoutMs > 0) { 4118 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 4119 nri), timeoutMs); 4120 } 4121 return networkRequest; 4122 } 4123 4124 @Override 4125 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 4126 PendingIntent operation) { 4127 // TODO 4128 return null; 4129 } 4130 4131 @Override 4132 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 4133 Messenger messenger, IBinder binder) { 4134 enforceAccessPermission(); 4135 4136 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 4137 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 4138 if (DBG) log("listenForNetwork for " + networkRequest); 4139 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4140 NetworkRequestInfo.LISTEN); 4141 4142 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 4143 return networkRequest; 4144 } 4145 4146 @Override 4147 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 4148 PendingIntent operation) { 4149 } 4150 4151 @Override 4152 public void releaseNetworkRequest(NetworkRequest networkRequest) { 4153 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), 4154 0, networkRequest)); 4155 } 4156 4157 @Override 4158 public void registerNetworkFactory(Messenger messenger, String name) { 4159 enforceConnectivityInternalPermission(); 4160 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 4161 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 4162 } 4163 4164 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 4165 if (VDBG) log("Got NetworkFactory Messenger for " + nfi.name); 4166 mNetworkFactoryInfos.put(nfi.messenger, nfi); 4167 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 4168 } 4169 4170 @Override 4171 public void unregisterNetworkFactory(Messenger messenger) { 4172 enforceConnectivityInternalPermission(); 4173 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 4174 } 4175 4176 private void handleUnregisterNetworkFactory(Messenger messenger) { 4177 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 4178 if (nfi == null) { 4179 if (VDBG) log("Failed to find Messenger in unregisterNetworkFactory"); 4180 return; 4181 } 4182 if (VDBG) log("unregisterNetworkFactory for " + nfi.name); 4183 } 4184 4185 /** 4186 * NetworkAgentInfo supporting a request by requestId. 4187 * These have already been vetted (their Capabilities satisfy the request) 4188 * and the are the highest scored network available. 4189 * the are keyed off the Requests requestId. 4190 */ 4191 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 4192 new SparseArray<NetworkAgentInfo>(); 4193 4194 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 4195 new SparseArray<NetworkAgentInfo>(); 4196 4197 // NetworkAgentInfo keyed off its connecting messenger 4198 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 4199 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 4200 new HashMap<Messenger, NetworkAgentInfo>(); 4201 4202 private final NetworkRequest mDefaultRequest; 4203 4204 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 4205 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 4206 int currentScore, NetworkMisc networkMisc) { 4207 enforceConnectivityInternalPermission(); 4208 4209 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), nextNetId(), 4210 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 4211 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler, 4212 networkMisc); 4213 if (VDBG) log("registerNetworkAgent " + nai); 4214 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 4215 } 4216 4217 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 4218 if (VDBG) log("Got NetworkAgent Messenger"); 4219 mNetworkAgentInfos.put(na.messenger, na); 4220 synchronized (mNetworkForNetId) { 4221 mNetworkForNetId.put(na.network.netId, na); 4222 } 4223 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 4224 NetworkInfo networkInfo = na.networkInfo; 4225 na.networkInfo = null; 4226 updateNetworkInfo(na, networkInfo); 4227 } 4228 4229 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 4230 LinkProperties newLp = networkAgent.linkProperties; 4231 int netId = networkAgent.network.netId; 4232 4233 updateInterfaces(newLp, oldLp, netId); 4234 updateMtu(newLp, oldLp); 4235 // TODO - figure out what to do for clat 4236// for (LinkProperties lp : newLp.getStackedLinks()) { 4237// updateMtu(lp, null); 4238// } 4239 updateRoutes(newLp, oldLp, netId); 4240 updateDnses(newLp, oldLp, netId); 4241 updateClat(newLp, oldLp, networkAgent); 4242 } 4243 4244 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { 4245 // Update 464xlat state. 4246 if (mClat.requiresClat(na)) { 4247 4248 // If the connection was previously using clat, but is not using it now, stop the clat 4249 // daemon. Normally, this happens automatically when the connection disconnects, but if 4250 // the disconnect is not reported, or if the connection's LinkProperties changed for 4251 // some other reason (e.g., handoff changes the IP addresses on the link), it would 4252 // still be running. If it's not running, then stopping it is a no-op. 4253 if (Nat464Xlat.isRunningClat(oldLp) && !Nat464Xlat.isRunningClat(newLp)) { 4254 mClat.stopClat(); 4255 } 4256 // If the link requires clat to be running, then start the daemon now. 4257 if (na.networkInfo.isConnected()) { 4258 mClat.startClat(na); 4259 } else { 4260 mClat.stopClat(); 4261 } 4262 } 4263 } 4264 4265 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 4266 CompareResult<String> interfaceDiff = new CompareResult<String>(); 4267 if (oldLp != null) { 4268 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 4269 } else if (newLp != null) { 4270 interfaceDiff.added = newLp.getAllInterfaceNames(); 4271 } 4272 for (String iface : interfaceDiff.added) { 4273 try { 4274 mNetd.addInterfaceToNetwork(iface, netId); 4275 } catch (Exception e) { 4276 loge("Exception adding interface: " + e); 4277 } 4278 } 4279 for (String iface : interfaceDiff.removed) { 4280 try { 4281 mNetd.removeInterfaceFromNetwork(iface, netId); 4282 } catch (Exception e) { 4283 loge("Exception removing interface: " + e); 4284 } 4285 } 4286 } 4287 4288 private void updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 4289 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 4290 if (oldLp != null) { 4291 routeDiff = oldLp.compareAllRoutes(newLp); 4292 } else if (newLp != null) { 4293 routeDiff.added = newLp.getAllRoutes(); 4294 } 4295 4296 // add routes before removing old in case it helps with continuous connectivity 4297 4298 // do this twice, adding non-nexthop routes first, then routes they are dependent on 4299 for (RouteInfo route : routeDiff.added) { 4300 if (route.hasGateway()) continue; 4301 try { 4302 mNetd.addRoute(netId, route); 4303 } catch (Exception e) { 4304 loge("Exception in addRoute for non-gateway: " + e); 4305 } 4306 } 4307 for (RouteInfo route : routeDiff.added) { 4308 if (route.hasGateway() == false) continue; 4309 try { 4310 mNetd.addRoute(netId, route); 4311 } catch (Exception e) { 4312 loge("Exception in addRoute for gateway: " + e); 4313 } 4314 } 4315 4316 for (RouteInfo route : routeDiff.removed) { 4317 try { 4318 mNetd.removeRoute(netId, route); 4319 } catch (Exception e) { 4320 loge("Exception in removeRoute: " + e); 4321 } 4322 } 4323 } 4324 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId) { 4325 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 4326 Collection<InetAddress> dnses = newLp.getDnsServers(); 4327 if (dnses.size() == 0 && mDefaultDns != null) { 4328 dnses = new ArrayList(); 4329 dnses.add(mDefaultDns); 4330 if (DBG) { 4331 loge("no dns provided for netId " + netId + ", so using defaults"); 4332 } 4333 } 4334 try { 4335 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 4336 newLp.getDomains()); 4337 } catch (Exception e) { 4338 loge("Exception in setDnsServersForNetwork: " + e); 4339 } 4340 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 4341 if (defaultNai != null && defaultNai.network.netId == netId) { 4342 setDefaultDnsSystemProperties(dnses); 4343 } 4344 flushVmDnsCache(); 4345 } 4346 } 4347 4348 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 4349 int last = 0; 4350 for (InetAddress dns : dnses) { 4351 ++last; 4352 String key = "net.dns" + last; 4353 String value = dns.getHostAddress(); 4354 SystemProperties.set(key, value); 4355 } 4356 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 4357 String key = "net.dns" + i; 4358 SystemProperties.set(key, ""); 4359 } 4360 mNumDnsEntries = last; 4361 } 4362 4363 4364 private void updateCapabilities(NetworkAgentInfo networkAgent, 4365 NetworkCapabilities networkCapabilities) { 4366 // TODO - what else here? Verify still satisfies everybody? 4367 // Check if satisfies somebody new? call callbacks? 4368 synchronized (networkAgent) { 4369 networkAgent.networkCapabilities = networkCapabilities; 4370 } 4371 } 4372 4373 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 4374 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 4375 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 4376 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 4377 networkRequest); 4378 } 4379 } 4380 4381 private void callCallbackForRequest(NetworkRequestInfo nri, 4382 NetworkAgentInfo networkAgent, int notificationType) { 4383 if (nri.messenger == null) return; // Default request has no msgr 4384 Object o; 4385 int a1 = 0; 4386 int a2 = 0; 4387 switch (notificationType) { 4388 case ConnectivityManager.CALLBACK_LOSING: 4389 a1 = 30 * 1000; // TODO - read this from NetworkMonitor 4390 // fall through 4391 case ConnectivityManager.CALLBACK_PRECHECK: 4392 case ConnectivityManager.CALLBACK_AVAILABLE: 4393 case ConnectivityManager.CALLBACK_LOST: 4394 case ConnectivityManager.CALLBACK_CAP_CHANGED: 4395 case ConnectivityManager.CALLBACK_IP_CHANGED: { 4396 o = new NetworkRequest(nri.request); 4397 a2 = networkAgent.network.netId; 4398 break; 4399 } 4400 case ConnectivityManager.CALLBACK_UNAVAIL: 4401 case ConnectivityManager.CALLBACK_RELEASED: { 4402 o = new NetworkRequest(nri.request); 4403 break; 4404 } 4405 default: { 4406 loge("Unknown notificationType " + notificationType); 4407 return; 4408 } 4409 } 4410 Message msg = Message.obtain(); 4411 msg.arg1 = a1; 4412 msg.arg2 = a2; 4413 msg.obj = o; 4414 msg.what = notificationType; 4415 try { 4416 if (VDBG) log("sending notification " + notificationType + " for " + nri.request); 4417 nri.messenger.send(msg); 4418 } catch (RemoteException e) { 4419 // may occur naturally in the race of binder death. 4420 loge("RemoteException caught trying to send a callback msg for " + nri.request); 4421 } 4422 } 4423 4424 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 4425 if (oldNetwork == null) { 4426 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 4427 return; 4428 } 4429 if (DBG) log("handleLingerComplete for " + oldNetwork.name()); 4430 if (DBG) { 4431 if (oldNetwork.networkRequests.size() != 0) { 4432 loge("Dead network still had " + oldNetwork.networkRequests.size() + " requests"); 4433 } 4434 } 4435 oldNetwork.asyncChannel.disconnect(); 4436 } 4437 4438 private void makeDefault(NetworkAgentInfo newNetwork) { 4439 if (VDBG) log("Switching to new default network: " + newNetwork); 4440 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4441 setupDataActivityTracking(newNetwork); 4442 try { 4443 mNetd.setDefaultNetId(newNetwork.network.netId); 4444 } catch (Exception e) { 4445 loge("Exception setting default network :" + e); 4446 } 4447 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 4448 } 4449 4450 private void handleConnectionValidated(NetworkAgentInfo newNetwork) { 4451 if (newNetwork == null) { 4452 loge("Unknown NetworkAgentInfo in handleConnectionValidated"); 4453 return; 4454 } 4455 boolean keep = newNetwork.isVPN(); 4456 boolean isNewDefault = false; 4457 if (DBG) log("handleConnectionValidated for "+newNetwork.name()); 4458 // check if any NetworkRequest wants this NetworkAgent 4459 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 4460 if (VDBG) log(" new Network has: " + newNetwork.networkCapabilities); 4461 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 4462 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 4463 if (newNetwork == currentNetwork) { 4464 if (VDBG) log("Network " + newNetwork.name() + " was already satisfying" + 4465 " request " + nri.request.requestId + ". No change."); 4466 keep = true; 4467 continue; 4468 } 4469 4470 // check if it satisfies the NetworkCapabilities 4471 if (VDBG) log(" checking if request is satisfied: " + nri.request); 4472 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 4473 newNetwork.networkCapabilities)) { 4474 // next check if it's better than any current network we're using for 4475 // this request 4476 if (VDBG) { 4477 log("currentScore = " + 4478 (currentNetwork != null ? currentNetwork.currentScore : 0) + 4479 ", newScore = " + newNetwork.currentScore); 4480 } 4481 if (currentNetwork == null || 4482 currentNetwork.currentScore < newNetwork.currentScore) { 4483 if (currentNetwork != null) { 4484 if (VDBG) log(" accepting network in place of " + currentNetwork.name()); 4485 currentNetwork.networkRequests.remove(nri.request.requestId); 4486 currentNetwork.networkLingered.add(nri.request); 4487 affectedNetworks.add(currentNetwork); 4488 } else { 4489 if (VDBG) log(" accepting network in place of null"); 4490 } 4491 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 4492 newNetwork.addRequest(nri.request); 4493 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 4494 mLegacyTypeTracker.add(nri.request.legacyType, newNetwork); 4495 } 4496 keep = true; 4497 // TODO - this could get expensive if we have alot of requests for this 4498 // network. Think about if there is a way to reduce this. Push 4499 // netid->request mapping to each factory? 4500 sendUpdatedScoreToFactories(nri.request, newNetwork.currentScore); 4501 if (mDefaultRequest.requestId == nri.request.requestId) { 4502 isNewDefault = true; 4503 updateActiveDefaultNetwork(newNetwork); 4504 if (newNetwork.linkProperties != null) { 4505 setDefaultDnsSystemProperties( 4506 newNetwork.linkProperties.getDnsServers()); 4507 } else { 4508 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 4509 } 4510 // Maintain the illusion: since the legacy API only 4511 // understands one network at a time, we must pretend 4512 // that the current default network disconnected before 4513 // the new one connected. 4514 if (currentNetwork != null) { 4515 mLegacyTypeTracker.remove(currentNetwork.networkInfo.getType(), 4516 currentNetwork); 4517 } 4518 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 4519 } 4520 } 4521 } 4522 } 4523 for (NetworkAgentInfo nai : affectedNetworks) { 4524 boolean teardown = !nai.isVPN(); 4525 for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { 4526 NetworkRequest nr = nai.networkRequests.valueAt(i); 4527 try { 4528 if (mNetworkRequests.get(nr).isRequest) { 4529 teardown = false; 4530 } 4531 } catch (Exception e) { 4532 loge("Request " + nr + " not found in mNetworkRequests."); 4533 loge(" it came from request list of " + nai.name()); 4534 } 4535 } 4536 if (teardown) { 4537 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 4538 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 4539 } else { 4540 // not going to linger, so kill the list of linger networks.. only 4541 // notify them of linger if it happens as the result of gaining another, 4542 // but if they transition and old network stays up, don't tell them of linger 4543 // or very delayed loss 4544 nai.networkLingered.clear(); 4545 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 4546 } 4547 } 4548 if (keep) { 4549 if (isNewDefault) { 4550 makeDefault(newNetwork); 4551 synchronized (ConnectivityService.this) { 4552 // have a new default network, release the transition wakelock in 4553 // a second if it's held. The second pause is to allow apps 4554 // to reconnect over the new network 4555 if (mNetTransitionWakeLock.isHeld()) { 4556 mHandler.sendMessageDelayed(mHandler.obtainMessage( 4557 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 4558 mNetTransitionWakeLockSerialNumber, 0), 4559 1000); 4560 } 4561 } 4562 4563 // this will cause us to come up initially as unconnected and switching 4564 // to connected after our normal pause unless somebody reports us as 4565 // really disconnected 4566 mDefaultInetConditionPublished = 0; 4567 mDefaultConnectionSequence++; 4568 mInetConditionChangeInFlight = false; 4569 // TODO - read the tcp buffer size config string from somewhere 4570 // updateNetworkSettings(); 4571 } 4572 // notify battery stats service about this network 4573 try { 4574 BatteryStatsService.getService().noteNetworkInterfaceType( 4575 newNetwork.linkProperties.getInterfaceName(), 4576 newNetwork.networkInfo.getType()); 4577 } catch (RemoteException e) { } 4578 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 4579 } else { 4580 if (DBG && newNetwork.networkRequests.size() != 0) { 4581 loge("tearing down network with live requests:"); 4582 for (int i=0; i < newNetwork.networkRequests.size(); i++) { 4583 loge(" " + newNetwork.networkRequests.valueAt(i)); 4584 } 4585 } 4586 if (VDBG) log("Validated network turns out to be unwanted. Tear it down."); 4587 newNetwork.asyncChannel.disconnect(); 4588 } 4589 } 4590 4591 4592 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 4593 NetworkInfo.State state = newInfo.getState(); 4594 NetworkInfo oldInfo = null; 4595 synchronized (networkAgent) { 4596 oldInfo = networkAgent.networkInfo; 4597 networkAgent.networkInfo = newInfo; 4598 } 4599 if (networkAgent.isVPN() && mLockdownTracker != null) { 4600 mLockdownTracker.onVpnStateChanged(newInfo); 4601 } 4602 4603 if (oldInfo != null && oldInfo.getState() == state) { 4604 if (VDBG) log("ignoring duplicate network state non-change"); 4605 return; 4606 } 4607 if (DBG) { 4608 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 4609 (oldInfo == null ? "null" : oldInfo.getState()) + 4610 " to " + state); 4611 } 4612 4613 if (state == NetworkInfo.State.CONNECTED) { 4614 try { 4615 // This is likely caused by the fact that this network already 4616 // exists. An example is when a network goes from CONNECTED to 4617 // CONNECTING and back (like wifi on DHCP renew). 4618 // TODO: keep track of which networks we've created, or ask netd 4619 // to tell us whether we've already created this network or not. 4620 if (networkAgent.isVPN()) { 4621 mNetd.createVirtualNetwork(networkAgent.network.netId, 4622 !networkAgent.linkProperties.getDnsServers().isEmpty(), 4623 (networkAgent.networkMisc == null || 4624 !networkAgent.networkMisc.allowBypass)); 4625 } else { 4626 mNetd.createPhysicalNetwork(networkAgent.network.netId); 4627 } 4628 } catch (Exception e) { 4629 loge("Error creating network " + networkAgent.network.netId + ": " 4630 + e.getMessage()); 4631 return; 4632 } 4633 4634 updateLinkProperties(networkAgent, null); 4635 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 4636 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 4637 if (networkAgent.isVPN()) { 4638 // Temporarily disable the default proxy (not global). 4639 synchronized (mProxyLock) { 4640 if (!mDefaultProxyDisabled) { 4641 mDefaultProxyDisabled = true; 4642 if (mGlobalProxy == null && mDefaultProxy != null) { 4643 sendProxyBroadcast(null); 4644 } 4645 } 4646 } 4647 // TODO: support proxy per network. 4648 } 4649 // Make default network if we have no default. Any network is better than no network. 4650 if (mNetworkForRequestId.get(mDefaultRequest.requestId) == null && 4651 networkAgent.isVPN() == false && 4652 mDefaultRequest.networkCapabilities.satisfiedByNetworkCapabilities( 4653 networkAgent.networkCapabilities)) { 4654 makeDefault(networkAgent); 4655 } 4656 } else if (state == NetworkInfo.State.DISCONNECTED || 4657 state == NetworkInfo.State.SUSPENDED) { 4658 networkAgent.asyncChannel.disconnect(); 4659 if (networkAgent.isVPN()) { 4660 synchronized (mProxyLock) { 4661 if (mDefaultProxyDisabled) { 4662 mDefaultProxyDisabled = false; 4663 if (mGlobalProxy == null && mDefaultProxy != null) { 4664 sendProxyBroadcast(mDefaultProxy); 4665 } 4666 } 4667 } 4668 } 4669 } 4670 } 4671 4672 private void updateNetworkScore(NetworkAgentInfo nai, int score) { 4673 if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); 4674 4675 nai.currentScore = score; 4676 4677 // TODO - This will not do the right thing if this network is lowering 4678 // its score and has requests that can be served by other 4679 // currently-active networks, or if the network is increasing its 4680 // score and other networks have requests that can be better served 4681 // by this network. 4682 // 4683 // Really we want to see if any of our requests migrate to other 4684 // active/lingered networks and if any other requests migrate to us (depending 4685 // on increasing/decreasing currentScore. That's a bit of work and probably our 4686 // score checking/network allocation code needs to be modularized so we can understand 4687 // (see handleConnectionValided for an example). 4688 // 4689 // As a first order approx, lets just advertise the new score to factories. If 4690 // somebody can beat it they will nominate a network and our normal net replacement 4691 // code will fire. 4692 for (int i = 0; i < nai.networkRequests.size(); i++) { 4693 NetworkRequest nr = nai.networkRequests.valueAt(i); 4694 sendUpdatedScoreToFactories(nr, score); 4695 } 4696 } 4697 4698 // notify only this one new request of the current state 4699 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 4700 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 4701 // TODO - read state from monitor to decide what to send. 4702// if (nai.networkMonitor.isLingering()) { 4703// notifyType = NetworkCallbacks.LOSING; 4704// } else if (nai.networkMonitor.isEvaluating()) { 4705// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 4706// } 4707 callCallbackForRequest(nri, nai, notifyType); 4708 } 4709 4710 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 4711 // The NetworkInfo we actually send out has no bearing on the real 4712 // state of affairs. For example, if the default connection is mobile, 4713 // and a request for HIPRI has just gone away, we need to pretend that 4714 // HIPRI has just disconnected. So we need to set the type to HIPRI and 4715 // the state to DISCONNECTED, even though the network is of type MOBILE 4716 // and is still connected. 4717 NetworkInfo info = new NetworkInfo(nai.networkInfo); 4718 info.setType(type); 4719 if (connected) { 4720 info.setDetailedState(DetailedState.CONNECTED, null, info.getExtraInfo()); 4721 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 4722 } else { 4723 info.setDetailedState(DetailedState.DISCONNECTED, null, info.getExtraInfo()); 4724 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 4725 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 4726 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 4727 if (info.isFailover()) { 4728 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 4729 nai.networkInfo.setFailover(false); 4730 } 4731 if (info.getReason() != null) { 4732 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 4733 } 4734 if (info.getExtraInfo() != null) { 4735 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 4736 } 4737 NetworkAgentInfo newDefaultAgent = null; 4738 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 4739 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 4740 if (newDefaultAgent != null) { 4741 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 4742 newDefaultAgent.networkInfo); 4743 } else { 4744 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 4745 } 4746 } 4747 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 4748 mDefaultInetConditionPublished); 4749 final Intent immediateIntent = new Intent(intent); 4750 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 4751 sendStickyBroadcast(immediateIntent); 4752 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 4753 if (newDefaultAgent != null) { 4754 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 4755 getConnectivityChangeDelay()); 4756 } 4757 } 4758 } 4759 4760 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 4761 if (VDBG) log("notifyType " + notifyType + " for " + networkAgent.name()); 4762 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 4763 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 4764 NetworkRequestInfo nri = mNetworkRequests.get(nr); 4765 if (VDBG) log(" sending notification for " + nr); 4766 callCallbackForRequest(nri, networkAgent, notifyType); 4767 } 4768 } 4769 4770 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 4771 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4772 if (nai != null) { 4773 synchronized (nai) { 4774 return new LinkProperties(nai.linkProperties); 4775 } 4776 } 4777 return new LinkProperties(); 4778 } 4779 4780 private NetworkInfo getNetworkInfoForType(int networkType) { 4781 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 4782 return null; 4783 4784 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4785 if (nai != null) { 4786 NetworkInfo result = new NetworkInfo(nai.networkInfo); 4787 result.setType(networkType); 4788 return result; 4789 } else { 4790 return new NetworkInfo(networkType, 0, "Unknown", ""); 4791 } 4792 } 4793 4794 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 4795 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4796 if (nai != null) { 4797 synchronized (nai) { 4798 return new NetworkCapabilities(nai.networkCapabilities); 4799 } 4800 } 4801 return new NetworkCapabilities(); 4802 } 4803 4804 @Override 4805 public boolean addVpnAddress(String address, int prefixLength) { 4806 throwIfLockdownEnabled(); 4807 int user = UserHandle.getUserId(Binder.getCallingUid()); 4808 synchronized (mVpns) { 4809 return mVpns.get(user).addAddress(address, prefixLength); 4810 } 4811 } 4812 4813 @Override 4814 public boolean removeVpnAddress(String address, int prefixLength) { 4815 throwIfLockdownEnabled(); 4816 int user = UserHandle.getUserId(Binder.getCallingUid()); 4817 synchronized (mVpns) { 4818 return mVpns.get(user).removeAddress(address, prefixLength); 4819 } 4820 } 4821} 4822