ConnectivityService.java revision 255dd04271088590fedc46c8e22b2fd4ab142d39
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server; 18 19import static android.Manifest.permission.MANAGE_NETWORK_POLICY; 20import static android.Manifest.permission.RECEIVE_DATA_ACTIVITY_CHANGE; 21import static android.net.ConnectivityManager.CONNECTIVITY_ACTION; 22import static android.net.ConnectivityManager.CONNECTIVITY_ACTION_IMMEDIATE; 23import static android.net.ConnectivityManager.TYPE_BLUETOOTH; 24import static android.net.ConnectivityManager.TYPE_DUMMY; 25import static android.net.ConnectivityManager.TYPE_MOBILE; 26import static android.net.ConnectivityManager.TYPE_MOBILE_MMS; 27import static android.net.ConnectivityManager.TYPE_MOBILE_SUPL; 28import static android.net.ConnectivityManager.TYPE_MOBILE_DUN; 29import static android.net.ConnectivityManager.TYPE_MOBILE_FOTA; 30import static android.net.ConnectivityManager.TYPE_MOBILE_IMS; 31import static android.net.ConnectivityManager.TYPE_MOBILE_CBS; 32import static android.net.ConnectivityManager.TYPE_MOBILE_IA; 33import static android.net.ConnectivityManager.TYPE_MOBILE_HIPRI; 34import static android.net.ConnectivityManager.TYPE_NONE; 35import static android.net.ConnectivityManager.TYPE_WIFI; 36import static android.net.ConnectivityManager.TYPE_WIMAX; 37import static android.net.ConnectivityManager.TYPE_PROXY; 38import static android.net.ConnectivityManager.getNetworkTypeName; 39import static android.net.ConnectivityManager.isNetworkTypeValid; 40import static android.net.NetworkPolicyManager.RULE_ALLOW_ALL; 41import static android.net.NetworkPolicyManager.RULE_REJECT_METERED; 42 43import android.app.AlarmManager; 44import android.app.Notification; 45import android.app.NotificationManager; 46import android.app.PendingIntent; 47import android.content.ActivityNotFoundException; 48import android.content.BroadcastReceiver; 49import android.content.ContentResolver; 50import android.content.Context; 51import android.content.ContextWrapper; 52import android.content.Intent; 53import android.content.IntentFilter; 54import android.content.pm.PackageManager; 55import android.content.res.Configuration; 56import android.content.res.Resources; 57import android.database.ContentObserver; 58import android.net.ConnectivityManager; 59import android.net.IConnectivityManager; 60import android.net.INetworkManagementEventObserver; 61import android.net.INetworkPolicyListener; 62import android.net.INetworkPolicyManager; 63import android.net.INetworkStatsService; 64import android.net.LinkAddress; 65import android.net.LinkProperties; 66import android.net.LinkProperties.CompareResult; 67import android.net.LinkQualityInfo; 68import android.net.MobileDataStateTracker; 69import android.net.Network; 70import android.net.NetworkAgent; 71import android.net.NetworkCapabilities; 72import android.net.NetworkConfig; 73import android.net.NetworkInfo; 74import android.net.NetworkInfo.DetailedState; 75import android.net.NetworkFactory; 76import android.net.NetworkMisc; 77import android.net.NetworkQuotaInfo; 78import android.net.NetworkRequest; 79import android.net.NetworkState; 80import android.net.NetworkStateTracker; 81import android.net.NetworkUtils; 82import android.net.Proxy; 83import android.net.ProxyDataTracker; 84import android.net.ProxyInfo; 85import android.net.RouteInfo; 86import android.net.SamplingDataTracker; 87import android.net.UidRange; 88import android.net.Uri; 89import android.net.wimax.WimaxManagerConstants; 90import android.os.AsyncTask; 91import android.os.Binder; 92import android.os.Build; 93import android.os.FileUtils; 94import android.os.Handler; 95import android.os.HandlerThread; 96import android.os.IBinder; 97import android.os.INetworkManagementService; 98import android.os.Looper; 99import android.os.Message; 100import android.os.Messenger; 101import android.os.ParcelFileDescriptor; 102import android.os.PowerManager; 103import android.os.Process; 104import android.os.RemoteException; 105import android.os.ServiceManager; 106import android.os.SystemClock; 107import android.os.SystemProperties; 108import android.os.UserHandle; 109import android.os.UserManager; 110import android.provider.Settings; 111import android.security.Credentials; 112import android.security.KeyStore; 113import android.telephony.TelephonyManager; 114import android.text.TextUtils; 115import android.util.Slog; 116import android.util.SparseArray; 117import android.util.SparseIntArray; 118import android.util.Xml; 119 120import com.android.internal.R; 121import com.android.internal.annotations.GuardedBy; 122import com.android.internal.app.IBatteryStats; 123import com.android.internal.net.LegacyVpnInfo; 124import com.android.internal.net.NetworkStatsFactory; 125import com.android.internal.net.VpnConfig; 126import com.android.internal.net.VpnProfile; 127import com.android.internal.telephony.DctConstants; 128import com.android.internal.telephony.Phone; 129import com.android.internal.telephony.PhoneConstants; 130import com.android.internal.telephony.TelephonyIntents; 131import com.android.internal.util.AsyncChannel; 132import com.android.internal.util.IndentingPrintWriter; 133import com.android.internal.util.XmlUtils; 134import com.android.server.am.BatteryStatsService; 135import com.android.server.connectivity.DataConnectionStats; 136import com.android.server.connectivity.Nat464Xlat; 137import com.android.server.connectivity.NetworkAgentInfo; 138import com.android.server.connectivity.NetworkMonitor; 139import com.android.server.connectivity.PacManager; 140import com.android.server.connectivity.Tethering; 141import com.android.server.connectivity.Vpn; 142import com.android.server.net.BaseNetworkObserver; 143import com.android.server.net.LockdownVpnTracker; 144import com.google.android.collect.Lists; 145import com.google.android.collect.Sets; 146 147import dalvik.system.DexClassLoader; 148 149import org.xmlpull.v1.XmlPullParser; 150import org.xmlpull.v1.XmlPullParserException; 151 152import java.io.File; 153import java.io.FileDescriptor; 154import java.io.FileNotFoundException; 155import java.io.FileReader; 156import java.io.IOException; 157import java.io.PrintWriter; 158import java.lang.reflect.Constructor; 159import java.net.HttpURLConnection; 160import java.net.Inet4Address; 161import java.net.Inet6Address; 162import java.net.InetAddress; 163import java.net.URL; 164import java.net.UnknownHostException; 165import java.util.ArrayList; 166import java.util.Arrays; 167import java.util.Collection; 168import java.util.GregorianCalendar; 169import java.util.HashMap; 170import java.util.HashSet; 171import java.util.List; 172import java.util.Map; 173import java.util.Random; 174import java.util.concurrent.atomic.AtomicBoolean; 175import java.util.concurrent.atomic.AtomicInteger; 176 177import javax.net.ssl.HostnameVerifier; 178import javax.net.ssl.HttpsURLConnection; 179import javax.net.ssl.SSLSession; 180 181/** 182 * @hide 183 */ 184public class ConnectivityService extends IConnectivityManager.Stub { 185 private static final String TAG = "ConnectivityService"; 186 187 private static final boolean DBG = true; 188 private static final boolean VDBG = true; // STOPSHIP 189 190 // network sampling debugging 191 private static final boolean SAMPLE_DBG = false; 192 193 private static final boolean LOGD_RULES = false; 194 195 // TODO: create better separation between radio types and network types 196 197 // how long to wait before switching back to a radio's default network 198 private static final int RESTORE_DEFAULT_NETWORK_DELAY = 1 * 60 * 1000; 199 // system property that can override the above value 200 private static final String NETWORK_RESTORE_DELAY_PROP_NAME = 201 "android.telephony.apn-restore"; 202 203 // Default value if FAIL_FAST_TIME_MS is not set 204 private static final int DEFAULT_FAIL_FAST_TIME_MS = 1 * 60 * 1000; 205 // system property that can override DEFAULT_FAIL_FAST_TIME_MS 206 private static final String FAIL_FAST_TIME_MS = 207 "persist.radio.fail_fast_time_ms"; 208 209 private static final String ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED = 210 "android.net.ConnectivityService.action.PKT_CNT_SAMPLE_INTERVAL_ELAPSED"; 211 212 private static final int SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE = 0; 213 214 private PendingIntent mSampleIntervalElapsedIntent; 215 216 // Set network sampling interval at 12 minutes, this way, even if the timers get 217 // aggregated, it will fire at around 15 minutes, which should allow us to 218 // aggregate this timer with other timers (specially the socket keep alive timers) 219 private static final int DEFAULT_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 12 * 60); 220 221 // start network sampling a minute after booting ... 222 private static final int DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 60); 223 224 AlarmManager mAlarmManager; 225 226 private Tethering mTethering; 227 228 private KeyStore mKeyStore; 229 230 @GuardedBy("mVpns") 231 private final SparseArray<Vpn> mVpns = new SparseArray<Vpn>(); 232 233 private boolean mLockdownEnabled; 234 private LockdownVpnTracker mLockdownTracker; 235 236 private Nat464Xlat mClat; 237 238 /** Lock around {@link #mUidRules} and {@link #mMeteredIfaces}. */ 239 private Object mRulesLock = new Object(); 240 /** Currently active network rules by UID. */ 241 private SparseIntArray mUidRules = new SparseIntArray(); 242 /** Set of ifaces that are costly. */ 243 private HashSet<String> mMeteredIfaces = Sets.newHashSet(); 244 245 /** 246 * Sometimes we want to refer to the individual network state 247 * trackers separately, and sometimes we just want to treat them 248 * abstractly. 249 */ 250 private NetworkStateTracker mNetTrackers[]; 251 252 private Context mContext; 253 private int mNetworkPreference; 254 private int mActiveDefaultNetwork = -1; 255 // 0 is full bad, 100 is full good 256 private int mDefaultInetConditionPublished = 0; 257 258 private Object mDnsLock = new Object(); 259 private int mNumDnsEntries; 260 261 private boolean mTestMode; 262 private static ConnectivityService sServiceInstance; 263 264 private INetworkManagementService mNetd; 265 private INetworkPolicyManager mPolicyManager; 266 267 private String mCurrentTcpBufferSizes; 268 269 private static final int ENABLED = 1; 270 private static final int DISABLED = 0; 271 272 /** 273 * used internally to change our mobile data enabled flag 274 */ 275 private static final int EVENT_CHANGE_MOBILE_DATA_ENABLED = 2; 276 277 /** 278 * used internally to clear a wakelock when transitioning 279 * from one net to another. Clear happens when we get a new 280 * network - EVENT_EXPIRE_NET_TRANSITION_WAKELOCK happens 281 * after a timeout if no network is found (typically 1 min). 282 */ 283 private static final int EVENT_CLEAR_NET_TRANSITION_WAKELOCK = 8; 284 285 /** 286 * used internally to reload global proxy settings 287 */ 288 private static final int EVENT_APPLY_GLOBAL_HTTP_PROXY = 9; 289 290 /** 291 * used internally to set external dependency met/unmet 292 * arg1 = ENABLED (met) or DISABLED (unmet) 293 * arg2 = NetworkType 294 */ 295 private static final int EVENT_SET_DEPENDENCY_MET = 10; 296 297 /** 298 * used internally to send a sticky broadcast delayed. 299 */ 300 private static final int EVENT_SEND_STICKY_BROADCAST_INTENT = 11; 301 302 /** 303 * Used internally to 304 * {@link NetworkStateTracker#setPolicyDataEnable(boolean)}. 305 */ 306 private static final int EVENT_SET_POLICY_DATA_ENABLE = 12; 307 308 /** 309 * Used internally to disable fail fast of mobile data 310 */ 311 private static final int EVENT_ENABLE_FAIL_FAST_MOBILE_DATA = 14; 312 313 /** 314 * used internally to indicate that data sampling interval is up 315 */ 316 private static final int EVENT_SAMPLE_INTERVAL_ELAPSED = 15; 317 318 /** 319 * PAC manager has received new port. 320 */ 321 private static final int EVENT_PROXY_HAS_CHANGED = 16; 322 323 /** 324 * used internally when registering NetworkFactories 325 * obj = NetworkFactoryInfo 326 */ 327 private static final int EVENT_REGISTER_NETWORK_FACTORY = 17; 328 329 /** 330 * used internally when registering NetworkAgents 331 * obj = Messenger 332 */ 333 private static final int EVENT_REGISTER_NETWORK_AGENT = 18; 334 335 /** 336 * used to add a network request 337 * includes a NetworkRequestInfo 338 */ 339 private static final int EVENT_REGISTER_NETWORK_REQUEST = 19; 340 341 /** 342 * indicates a timeout period is over - check if we had a network yet or not 343 * and if not, call the timeout calback (but leave the request live until they 344 * cancel it. 345 * includes a NetworkRequestInfo 346 */ 347 private static final int EVENT_TIMEOUT_NETWORK_REQUEST = 20; 348 349 /** 350 * used to add a network listener - no request 351 * includes a NetworkRequestInfo 352 */ 353 private static final int EVENT_REGISTER_NETWORK_LISTENER = 21; 354 355 /** 356 * used to remove a network request, either a listener or a real request 357 * arg1 = UID of caller 358 * obj = NetworkRequest 359 */ 360 private static final int EVENT_RELEASE_NETWORK_REQUEST = 22; 361 362 /** 363 * used internally when registering NetworkFactories 364 * obj = Messenger 365 */ 366 private static final int EVENT_UNREGISTER_NETWORK_FACTORY = 23; 367 368 /** 369 * used internally to expire a wakelock when transitioning 370 * from one net to another. Expire happens when we fail to find 371 * a new network (typically after 1 minute) - 372 * EVENT_CLEAR_NET_TRANSITION_WAKELOCK happens if we had found 373 * a replacement network. 374 */ 375 private static final int EVENT_EXPIRE_NET_TRANSITION_WAKELOCK = 24; 376 377 /** 378 * Used internally to indicate the system is ready. 379 */ 380 private static final int EVENT_SYSTEM_READY = 25; 381 382 383 /** Handler used for internal events. */ 384 final private InternalHandler mHandler; 385 /** Handler used for incoming {@link NetworkStateTracker} events. */ 386 final private NetworkStateTrackerHandler mTrackerHandler; 387 388 private boolean mSystemReady; 389 private Intent mInitialBroadcast; 390 391 private PowerManager.WakeLock mNetTransitionWakeLock; 392 private String mNetTransitionWakeLockCausedBy = ""; 393 private int mNetTransitionWakeLockSerialNumber; 394 private int mNetTransitionWakeLockTimeout; 395 396 private InetAddress mDefaultDns; 397 398 // used in DBG mode to track inet condition reports 399 private static final int INET_CONDITION_LOG_MAX_SIZE = 15; 400 private ArrayList mInetLog; 401 402 // track the current default http proxy - tell the world if we get a new one (real change) 403 private ProxyInfo mDefaultProxy = null; 404 private Object mProxyLock = new Object(); 405 private boolean mDefaultProxyDisabled = false; 406 407 // track the global proxy. 408 private ProxyInfo mGlobalProxy = null; 409 410 private PacManager mPacManager = null; 411 412 private SettingsObserver mSettingsObserver; 413 414 private UserManager mUserManager; 415 416 NetworkConfig[] mNetConfigs; 417 int mNetworksDefined; 418 419 // the set of network types that can only be enabled by system/sig apps 420 List mProtectedNetworks; 421 422 private DataConnectionStats mDataConnectionStats; 423 424 private AtomicInteger mEnableFailFastMobileDataTag = new AtomicInteger(0); 425 426 TelephonyManager mTelephonyManager; 427 428 // sequence number for Networks 429 private final static int MIN_NET_ID = 10; // some reserved marks 430 private final static int MAX_NET_ID = 65535; 431 private int mNextNetId = MIN_NET_ID; 432 433 // sequence number of NetworkRequests 434 private int mNextNetworkRequestId = 1; 435 436 /** 437 * Implements support for the legacy "one network per network type" model. 438 * 439 * We used to have a static array of NetworkStateTrackers, one for each 440 * network type, but that doesn't work any more now that we can have, 441 * for example, more that one wifi network. This class stores all the 442 * NetworkAgentInfo objects that support a given type, but the legacy 443 * API will only see the first one. 444 * 445 * It serves two main purposes: 446 * 447 * 1. Provide information about "the network for a given type" (since this 448 * API only supports one). 449 * 2. Send legacy connectivity change broadcasts. Broadcasts are sent if 450 * the first network for a given type changes, or if the default network 451 * changes. 452 */ 453 private class LegacyTypeTracker { 454 455 private static final boolean DBG = true; 456 private static final boolean VDBG = false; 457 private static final String TAG = "CSLegacyTypeTracker"; 458 459 /** 460 * Array of lists, one per legacy network type (e.g., TYPE_MOBILE_MMS). 461 * Each list holds references to all NetworkAgentInfos that are used to 462 * satisfy requests for that network type. 463 * 464 * This array is built out at startup such that an unsupported network 465 * doesn't get an ArrayList instance, making this a tristate: 466 * unsupported, supported but not active and active. 467 * 468 * The actual lists are populated when we scan the network types that 469 * are supported on this device. 470 */ 471 private ArrayList<NetworkAgentInfo> mTypeLists[]; 472 473 public LegacyTypeTracker() { 474 mTypeLists = (ArrayList<NetworkAgentInfo>[]) 475 new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE + 1]; 476 } 477 478 public void addSupportedType(int type) { 479 if (mTypeLists[type] != null) { 480 throw new IllegalStateException( 481 "legacy list for type " + type + "already initialized"); 482 } 483 mTypeLists[type] = new ArrayList<NetworkAgentInfo>(); 484 } 485 486 public boolean isTypeSupported(int type) { 487 return isNetworkTypeValid(type) && mTypeLists[type] != null; 488 } 489 490 public NetworkAgentInfo getNetworkForType(int type) { 491 if (isTypeSupported(type) && !mTypeLists[type].isEmpty()) { 492 return mTypeLists[type].get(0); 493 } else { 494 return null; 495 } 496 } 497 498 private void maybeLogBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 499 if (DBG) { 500 log("Sending " + (connected ? "connected" : "disconnected") + 501 " broadcast for type " + type + " " + nai.name() + 502 " isDefaultNetwork=" + isDefaultNetwork(nai)); 503 } 504 } 505 506 /** Adds the given network to the specified legacy type list. */ 507 public void add(int type, NetworkAgentInfo nai) { 508 if (!isTypeSupported(type)) { 509 return; // Invalid network type. 510 } 511 if (VDBG) log("Adding agent " + nai + " for legacy network type " + type); 512 513 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 514 if (list.contains(nai)) { 515 loge("Attempting to register duplicate agent for type " + type + ": " + nai); 516 return; 517 } 518 519 if (list.isEmpty() || isDefaultNetwork(nai)) { 520 maybeLogBroadcast(nai, true, type); 521 sendLegacyNetworkBroadcast(nai, true, type); 522 } 523 list.add(nai); 524 } 525 526 /** Removes the given network from the specified legacy type list. */ 527 public void remove(int type, NetworkAgentInfo nai) { 528 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 529 if (list == null || list.isEmpty()) { 530 return; 531 } 532 533 boolean wasFirstNetwork = list.get(0).equals(nai); 534 535 if (!list.remove(nai)) { 536 return; 537 } 538 539 if (wasFirstNetwork || isDefaultNetwork(nai)) { 540 maybeLogBroadcast(nai, false, type); 541 sendLegacyNetworkBroadcast(nai, false, type); 542 } 543 544 if (!list.isEmpty() && wasFirstNetwork) { 545 if (DBG) log("Other network available for type " + type + 546 ", sending connected broadcast"); 547 maybeLogBroadcast(list.get(0), false, type); 548 sendLegacyNetworkBroadcast(list.get(0), false, type); 549 } 550 } 551 552 /** Removes the given network from all legacy type lists. */ 553 public void remove(NetworkAgentInfo nai) { 554 if (VDBG) log("Removing agent " + nai); 555 for (int type = 0; type < mTypeLists.length; type++) { 556 remove(type, nai); 557 } 558 } 559 560 private String naiToString(NetworkAgentInfo nai) { 561 String name = (nai != null) ? nai.name() : "null"; 562 String state = (nai.networkInfo != null) ? 563 nai.networkInfo.getState() + "/" + nai.networkInfo.getDetailedState() : 564 "???/???"; 565 return name + " " + state; 566 } 567 568 public void dump(IndentingPrintWriter pw) { 569 for (int type = 0; type < mTypeLists.length; type++) { 570 if (mTypeLists[type] == null) continue; 571 pw.print(type + " "); 572 pw.increaseIndent(); 573 if (mTypeLists[type].size() == 0) pw.println("none"); 574 for (NetworkAgentInfo nai : mTypeLists[type]) { 575 pw.println(naiToString(nai)); 576 } 577 pw.decreaseIndent(); 578 } 579 } 580 581 // This class needs its own log method because it has a different TAG. 582 private void log(String s) { 583 Slog.d(TAG, s); 584 } 585 586 } 587 private LegacyTypeTracker mLegacyTypeTracker = new LegacyTypeTracker(); 588 589 public ConnectivityService(Context context, INetworkManagementService netManager, 590 INetworkStatsService statsService, INetworkPolicyManager policyManager) { 591 if (DBG) log("ConnectivityService starting up"); 592 593 NetworkCapabilities netCap = new NetworkCapabilities(); 594 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 595 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 596 mDefaultRequest = new NetworkRequest(netCap, TYPE_NONE, nextNetworkRequestId()); 597 NetworkRequestInfo nri = new NetworkRequestInfo(null, mDefaultRequest, new Binder(), 598 NetworkRequestInfo.REQUEST); 599 mNetworkRequests.put(mDefaultRequest, nri); 600 601 HandlerThread handlerThread = new HandlerThread("ConnectivityServiceThread"); 602 handlerThread.start(); 603 mHandler = new InternalHandler(handlerThread.getLooper()); 604 mTrackerHandler = new NetworkStateTrackerHandler(handlerThread.getLooper()); 605 606 // setup our unique device name 607 if (TextUtils.isEmpty(SystemProperties.get("net.hostname"))) { 608 String id = Settings.Secure.getString(context.getContentResolver(), 609 Settings.Secure.ANDROID_ID); 610 if (id != null && id.length() > 0) { 611 String name = new String("android-").concat(id); 612 SystemProperties.set("net.hostname", name); 613 } 614 } 615 616 // read our default dns server ip 617 String dns = Settings.Global.getString(context.getContentResolver(), 618 Settings.Global.DEFAULT_DNS_SERVER); 619 if (dns == null || dns.length() == 0) { 620 dns = context.getResources().getString( 621 com.android.internal.R.string.config_default_dns_server); 622 } 623 try { 624 mDefaultDns = NetworkUtils.numericToInetAddress(dns); 625 } catch (IllegalArgumentException e) { 626 loge("Error setting defaultDns using " + dns); 627 } 628 629 mContext = checkNotNull(context, "missing Context"); 630 mNetd = checkNotNull(netManager, "missing INetworkManagementService"); 631 mPolicyManager = checkNotNull(policyManager, "missing INetworkPolicyManager"); 632 mKeyStore = KeyStore.getInstance(); 633 mTelephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 634 635 try { 636 mPolicyManager.registerListener(mPolicyListener); 637 } catch (RemoteException e) { 638 // ouch, no rules updates means some processes may never get network 639 loge("unable to register INetworkPolicyListener" + e.toString()); 640 } 641 642 final PowerManager powerManager = (PowerManager) context.getSystemService( 643 Context.POWER_SERVICE); 644 mNetTransitionWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); 645 mNetTransitionWakeLockTimeout = mContext.getResources().getInteger( 646 com.android.internal.R.integer.config_networkTransitionTimeout); 647 648 mNetTrackers = new NetworkStateTracker[ 649 ConnectivityManager.MAX_NETWORK_TYPE+1]; 650 651 mNetConfigs = new NetworkConfig[ConnectivityManager.MAX_NETWORK_TYPE+1]; 652 653 // TODO: What is the "correct" way to do determine if this is a wifi only device? 654 boolean wifiOnly = SystemProperties.getBoolean("ro.radio.noril", false); 655 log("wifiOnly=" + wifiOnly); 656 String[] naStrings = context.getResources().getStringArray( 657 com.android.internal.R.array.networkAttributes); 658 for (String naString : naStrings) { 659 try { 660 NetworkConfig n = new NetworkConfig(naString); 661 if (VDBG) log("naString=" + naString + " config=" + n); 662 if (n.type > ConnectivityManager.MAX_NETWORK_TYPE) { 663 loge("Error in networkAttributes - ignoring attempt to define type " + 664 n.type); 665 continue; 666 } 667 if (wifiOnly && ConnectivityManager.isNetworkTypeMobile(n.type)) { 668 log("networkAttributes - ignoring mobile as this dev is wifiOnly " + 669 n.type); 670 continue; 671 } 672 if (mNetConfigs[n.type] != null) { 673 loge("Error in networkAttributes - ignoring attempt to redefine type " + 674 n.type); 675 continue; 676 } 677 mLegacyTypeTracker.addSupportedType(n.type); 678 679 mNetConfigs[n.type] = n; 680 mNetworksDefined++; 681 } catch(Exception e) { 682 // ignore it - leave the entry null 683 } 684 } 685 if (VDBG) log("mNetworksDefined=" + mNetworksDefined); 686 687 mProtectedNetworks = new ArrayList<Integer>(); 688 int[] protectedNetworks = context.getResources().getIntArray( 689 com.android.internal.R.array.config_protectedNetworks); 690 for (int p : protectedNetworks) { 691 if ((mNetConfigs[p] != null) && (mProtectedNetworks.contains(p) == false)) { 692 mProtectedNetworks.add(p); 693 } else { 694 if (DBG) loge("Ignoring protectedNetwork " + p); 695 } 696 } 697 698 mTestMode = SystemProperties.get("cm.test.mode").equals("true") 699 && SystemProperties.get("ro.build.type").equals("eng"); 700 701 mTethering = new Tethering(mContext, mNetd, statsService, mHandler.getLooper()); 702 703 //set up the listener for user state for creating user VPNs 704 IntentFilter intentFilter = new IntentFilter(); 705 intentFilter.addAction(Intent.ACTION_USER_STARTING); 706 intentFilter.addAction(Intent.ACTION_USER_STOPPING); 707 mContext.registerReceiverAsUser( 708 mUserIntentReceiver, UserHandle.ALL, intentFilter, null, null); 709 mClat = new Nat464Xlat(mContext, mNetd, this, mTrackerHandler); 710 711 try { 712 mNetd.registerObserver(mTethering); 713 mNetd.registerObserver(mDataActivityObserver); 714 mNetd.registerObserver(mClat); 715 } catch (RemoteException e) { 716 loge("Error registering observer :" + e); 717 } 718 719 if (DBG) { 720 mInetLog = new ArrayList(); 721 } 722 723 mSettingsObserver = new SettingsObserver(mHandler, EVENT_APPLY_GLOBAL_HTTP_PROXY); 724 mSettingsObserver.observe(mContext); 725 726 mDataConnectionStats = new DataConnectionStats(mContext); 727 mDataConnectionStats.startMonitoring(); 728 729 mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE); 730 731 IntentFilter filter = new IntentFilter(); 732 filter.addAction(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 733 mContext.registerReceiver( 734 new BroadcastReceiver() { 735 @Override 736 public void onReceive(Context context, Intent intent) { 737 String action = intent.getAction(); 738 if (action.equals(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED)) { 739 mHandler.sendMessage(mHandler.obtainMessage 740 (EVENT_SAMPLE_INTERVAL_ELAPSED)); 741 } 742 } 743 }, 744 new IntentFilter(filter)); 745 746 mPacManager = new PacManager(mContext, mHandler, EVENT_PROXY_HAS_CHANGED); 747 748 filter = new IntentFilter(); 749 filter.addAction(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 750 mContext.registerReceiver(mProvisioningReceiver, filter); 751 752 mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); 753 } 754 755 private synchronized int nextNetworkRequestId() { 756 return mNextNetworkRequestId++; 757 } 758 759 private synchronized int nextNetId() { 760 int netId = mNextNetId; 761 if (++mNextNetId > MAX_NET_ID) mNextNetId = MIN_NET_ID; 762 return netId; 763 } 764 765 private int getConnectivityChangeDelay() { 766 final ContentResolver cr = mContext.getContentResolver(); 767 768 /** Check system properties for the default value then use secure settings value, if any. */ 769 int defaultDelay = SystemProperties.getInt( 770 "conn." + Settings.Global.CONNECTIVITY_CHANGE_DELAY, 771 ConnectivityManager.CONNECTIVITY_CHANGE_DELAY_DEFAULT); 772 return Settings.Global.getInt(cr, Settings.Global.CONNECTIVITY_CHANGE_DELAY, 773 defaultDelay); 774 } 775 776 private boolean teardown(NetworkStateTracker netTracker) { 777 if (netTracker.teardown()) { 778 netTracker.setTeardownRequested(true); 779 return true; 780 } else { 781 return false; 782 } 783 } 784 785 /** 786 * Check if UID should be blocked from using the network represented by the 787 * given {@link NetworkStateTracker}. 788 */ 789 private boolean isNetworkBlocked(int networkType, int uid) { 790 final boolean networkCostly; 791 final int uidRules; 792 793 LinkProperties lp = getLinkPropertiesForType(networkType); 794 final String iface = (lp == null ? "" : lp.getInterfaceName()); 795 synchronized (mRulesLock) { 796 networkCostly = mMeteredIfaces.contains(iface); 797 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 798 } 799 800 if (networkCostly && (uidRules & RULE_REJECT_METERED) != 0) { 801 return true; 802 } 803 804 // no restrictive rules; network is visible 805 return false; 806 } 807 808 /** 809 * Return a filtered {@link NetworkInfo}, potentially marked 810 * {@link DetailedState#BLOCKED} based on 811 * {@link #isNetworkBlocked}. 812 */ 813 private NetworkInfo getFilteredNetworkInfo(int networkType, int uid) { 814 NetworkInfo info = getNetworkInfoForType(networkType); 815 return getFilteredNetworkInfo(info, networkType, uid); 816 } 817 818 private NetworkInfo getFilteredNetworkInfo(NetworkInfo info, int networkType, int uid) { 819 if (isNetworkBlocked(networkType, uid)) { 820 // network is blocked; clone and override state 821 info = new NetworkInfo(info); 822 info.setDetailedState(DetailedState.BLOCKED, null, null); 823 if (VDBG) log("returning Blocked NetworkInfo"); 824 } 825 if (mLockdownTracker != null) { 826 info = mLockdownTracker.augmentNetworkInfo(info); 827 if (VDBG) log("returning Locked NetworkInfo"); 828 } 829 return info; 830 } 831 832 /** 833 * Return NetworkInfo for the active (i.e., connected) network interface. 834 * It is assumed that at most one network is active at a time. If more 835 * than one is active, it is indeterminate which will be returned. 836 * @return the info for the active network, or {@code null} if none is 837 * active 838 */ 839 @Override 840 public NetworkInfo getActiveNetworkInfo() { 841 enforceAccessPermission(); 842 final int uid = Binder.getCallingUid(); 843 return getNetworkInfo(mActiveDefaultNetwork, uid); 844 } 845 846 // only called when the default request is satisfied 847 private void updateActiveDefaultNetwork(NetworkAgentInfo nai) { 848 if (nai != null) { 849 mActiveDefaultNetwork = nai.networkInfo.getType(); 850 } else { 851 mActiveDefaultNetwork = TYPE_NONE; 852 } 853 } 854 855 /** 856 * Find the first Provisioning network. 857 * 858 * @return NetworkInfo or null if none. 859 */ 860 private NetworkInfo getProvisioningNetworkInfo() { 861 enforceAccessPermission(); 862 863 // Find the first Provisioning Network 864 NetworkInfo provNi = null; 865 for (NetworkInfo ni : getAllNetworkInfo()) { 866 if (ni.isConnectedToProvisioningNetwork()) { 867 provNi = ni; 868 break; 869 } 870 } 871 if (DBG) log("getProvisioningNetworkInfo: X provNi=" + provNi); 872 return provNi; 873 } 874 875 /** 876 * Find the first Provisioning network or the ActiveDefaultNetwork 877 * if there is no Provisioning network 878 * 879 * @return NetworkInfo or null if none. 880 */ 881 @Override 882 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 883 enforceAccessPermission(); 884 885 NetworkInfo provNi = getProvisioningNetworkInfo(); 886 if (provNi == null) { 887 final int uid = Binder.getCallingUid(); 888 provNi = getNetworkInfo(mActiveDefaultNetwork, uid); 889 } 890 if (DBG) log("getProvisioningOrActiveNetworkInfo: X provNi=" + provNi); 891 return provNi; 892 } 893 894 public NetworkInfo getActiveNetworkInfoUnfiltered() { 895 enforceAccessPermission(); 896 if (isNetworkTypeValid(mActiveDefaultNetwork)) { 897 return getNetworkInfoForType(mActiveDefaultNetwork); 898 } 899 return null; 900 } 901 902 @Override 903 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 904 enforceConnectivityInternalPermission(); 905 return getNetworkInfo(mActiveDefaultNetwork, uid); 906 } 907 908 @Override 909 public NetworkInfo getNetworkInfo(int networkType) { 910 enforceAccessPermission(); 911 final int uid = Binder.getCallingUid(); 912 return getNetworkInfo(networkType, uid); 913 } 914 915 private NetworkInfo getNetworkInfo(int networkType, int uid) { 916 NetworkInfo info = null; 917 if (isNetworkTypeValid(networkType)) { 918 if (getNetworkInfoForType(networkType) != null) { 919 info = getFilteredNetworkInfo(networkType, uid); 920 } 921 } 922 return info; 923 } 924 925 @Override 926 public NetworkInfo getNetworkInfoForNetwork(Network network) { 927 enforceAccessPermission(); 928 if (network == null) return null; 929 930 final int uid = Binder.getCallingUid(); 931 NetworkAgentInfo nai = null; 932 synchronized (mNetworkForNetId) { 933 nai = mNetworkForNetId.get(network.netId); 934 } 935 if (nai == null) return null; 936 synchronized (nai) { 937 if (nai.networkInfo == null) return null; 938 939 return getFilteredNetworkInfo(nai.networkInfo, nai.networkInfo.getType(), uid); 940 } 941 } 942 943 @Override 944 public NetworkInfo[] getAllNetworkInfo() { 945 enforceAccessPermission(); 946 final int uid = Binder.getCallingUid(); 947 final ArrayList<NetworkInfo> result = Lists.newArrayList(); 948 synchronized (mRulesLock) { 949 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 950 networkType++) { 951 if (getNetworkInfoForType(networkType) != null) { 952 result.add(getFilteredNetworkInfo(networkType, uid)); 953 } 954 } 955 } 956 return result.toArray(new NetworkInfo[result.size()]); 957 } 958 959 @Override 960 public Network[] getAllNetworks() { 961 enforceAccessPermission(); 962 final ArrayList<Network> result = new ArrayList(); 963 synchronized (mNetworkForNetId) { 964 for (int i = 0; i < mNetworkForNetId.size(); i++) { 965 result.add(new Network(mNetworkForNetId.valueAt(i).network)); 966 } 967 } 968 return result.toArray(new Network[result.size()]); 969 } 970 971 @Override 972 public boolean isNetworkSupported(int networkType) { 973 enforceAccessPermission(); 974 return (isNetworkTypeValid(networkType) && (getNetworkInfoForType(networkType) != null)); 975 } 976 977 /** 978 * Return LinkProperties for the active (i.e., connected) default 979 * network interface. It is assumed that at most one default network 980 * is active at a time. If more than one is active, it is indeterminate 981 * which will be returned. 982 * @return the ip properties for the active network, or {@code null} if 983 * none is active 984 */ 985 @Override 986 public LinkProperties getActiveLinkProperties() { 987 return getLinkPropertiesForType(mActiveDefaultNetwork); 988 } 989 990 @Override 991 public LinkProperties getLinkPropertiesForType(int networkType) { 992 enforceAccessPermission(); 993 if (isNetworkTypeValid(networkType)) { 994 return getLinkPropertiesForTypeInternal(networkType); 995 } 996 return null; 997 } 998 999 // TODO - this should be ALL networks 1000 @Override 1001 public LinkProperties getLinkProperties(Network network) { 1002 enforceAccessPermission(); 1003 NetworkAgentInfo nai = null; 1004 synchronized (mNetworkForNetId) { 1005 nai = mNetworkForNetId.get(network.netId); 1006 } 1007 1008 if (nai != null) { 1009 synchronized (nai) { 1010 return new LinkProperties(nai.linkProperties); 1011 } 1012 } 1013 return null; 1014 } 1015 1016 @Override 1017 public NetworkCapabilities getNetworkCapabilities(Network network) { 1018 enforceAccessPermission(); 1019 NetworkAgentInfo nai = null; 1020 synchronized (mNetworkForNetId) { 1021 nai = mNetworkForNetId.get(network.netId); 1022 } 1023 if (nai != null) { 1024 synchronized (nai) { 1025 return new NetworkCapabilities(nai.networkCapabilities); 1026 } 1027 } 1028 return null; 1029 } 1030 1031 @Override 1032 public NetworkState[] getAllNetworkState() { 1033 enforceAccessPermission(); 1034 final int uid = Binder.getCallingUid(); 1035 final ArrayList<NetworkState> result = Lists.newArrayList(); 1036 synchronized (mRulesLock) { 1037 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1038 networkType++) { 1039 if (getNetworkInfoForType(networkType) != null) { 1040 final NetworkInfo info = getFilteredNetworkInfo(networkType, uid); 1041 final LinkProperties lp = getLinkPropertiesForTypeInternal(networkType); 1042 final NetworkCapabilities netcap = getNetworkCapabilitiesForType(networkType); 1043 result.add(new NetworkState(info, lp, netcap)); 1044 } 1045 } 1046 } 1047 return result.toArray(new NetworkState[result.size()]); 1048 } 1049 1050 private NetworkState getNetworkStateUnchecked(int networkType) { 1051 if (isNetworkTypeValid(networkType)) { 1052 NetworkInfo info = getNetworkInfoForType(networkType); 1053 if (info != null) { 1054 return new NetworkState(info, 1055 getLinkPropertiesForTypeInternal(networkType), 1056 getNetworkCapabilitiesForType(networkType)); 1057 } 1058 } 1059 return null; 1060 } 1061 1062 @Override 1063 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1064 enforceAccessPermission(); 1065 1066 final long token = Binder.clearCallingIdentity(); 1067 try { 1068 final NetworkState state = getNetworkStateUnchecked(mActiveDefaultNetwork); 1069 if (state != null) { 1070 try { 1071 return mPolicyManager.getNetworkQuotaInfo(state); 1072 } catch (RemoteException e) { 1073 } 1074 } 1075 return null; 1076 } finally { 1077 Binder.restoreCallingIdentity(token); 1078 } 1079 } 1080 1081 @Override 1082 public boolean isActiveNetworkMetered() { 1083 enforceAccessPermission(); 1084 final long token = Binder.clearCallingIdentity(); 1085 try { 1086 return isNetworkMeteredUnchecked(mActiveDefaultNetwork); 1087 } finally { 1088 Binder.restoreCallingIdentity(token); 1089 } 1090 } 1091 1092 private boolean isNetworkMeteredUnchecked(int networkType) { 1093 final NetworkState state = getNetworkStateUnchecked(networkType); 1094 if (state != null) { 1095 try { 1096 return mPolicyManager.isNetworkMetered(state); 1097 } catch (RemoteException e) { 1098 } 1099 } 1100 return false; 1101 } 1102 1103 private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { 1104 @Override 1105 public void interfaceClassDataActivityChanged(String label, boolean active, long tsNanos) { 1106 int deviceType = Integer.parseInt(label); 1107 sendDataActivityBroadcast(deviceType, active, tsNanos); 1108 } 1109 }; 1110 1111 /** 1112 * Ensure that a network route exists to deliver traffic to the specified 1113 * host via the specified network interface. 1114 * @param networkType the type of the network over which traffic to the 1115 * specified host is to be routed 1116 * @param hostAddress the IP address of the host to which the route is 1117 * desired 1118 * @return {@code true} on success, {@code false} on failure 1119 */ 1120 public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress) { 1121 enforceChangePermission(); 1122 if (mProtectedNetworks.contains(networkType)) { 1123 enforceConnectivityInternalPermission(); 1124 } 1125 1126 InetAddress addr; 1127 try { 1128 addr = InetAddress.getByAddress(hostAddress); 1129 } catch (UnknownHostException e) { 1130 if (DBG) log("requestRouteToHostAddress got " + e.toString()); 1131 return false; 1132 } 1133 1134 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1135 if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); 1136 return false; 1137 } 1138 1139 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1140 if (nai == null) { 1141 if (mLegacyTypeTracker.isTypeSupported(networkType) == false) { 1142 if (DBG) log("requestRouteToHostAddress on unsupported network: " + networkType); 1143 } else { 1144 if (DBG) log("requestRouteToHostAddress on down network: " + networkType); 1145 } 1146 return false; 1147 } 1148 1149 DetailedState netState; 1150 synchronized (nai) { 1151 netState = nai.networkInfo.getDetailedState(); 1152 } 1153 1154 if (netState != DetailedState.CONNECTED && netState != DetailedState.CAPTIVE_PORTAL_CHECK) { 1155 if (VDBG) { 1156 log("requestRouteToHostAddress on down network " 1157 + "(" + networkType + ") - dropped" 1158 + " netState=" + netState); 1159 } 1160 return false; 1161 } 1162 1163 final int uid = Binder.getCallingUid(); 1164 final long token = Binder.clearCallingIdentity(); 1165 try { 1166 LinkProperties lp; 1167 int netId; 1168 synchronized (nai) { 1169 lp = nai.linkProperties; 1170 netId = nai.network.netId; 1171 } 1172 boolean ok = addLegacyRouteToHost(lp, addr, netId, uid); 1173 if (DBG) log("requestRouteToHostAddress ok=" + ok); 1174 return ok; 1175 } finally { 1176 Binder.restoreCallingIdentity(token); 1177 } 1178 } 1179 1180 private boolean addLegacyRouteToHost(LinkProperties lp, InetAddress addr, int netId, int uid) { 1181 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), addr); 1182 if (bestRoute == null) { 1183 bestRoute = RouteInfo.makeHostRoute(addr, lp.getInterfaceName()); 1184 } else { 1185 String iface = bestRoute.getInterface(); 1186 if (bestRoute.getGateway().equals(addr)) { 1187 // if there is no better route, add the implied hostroute for our gateway 1188 bestRoute = RouteInfo.makeHostRoute(addr, iface); 1189 } else { 1190 // if we will connect to this through another route, add a direct route 1191 // to it's gateway 1192 bestRoute = RouteInfo.makeHostRoute(addr, bestRoute.getGateway(), iface); 1193 } 1194 } 1195 if (VDBG) log("Adding " + bestRoute + " for interface " + bestRoute.getInterface()); 1196 try { 1197 mNetd.addLegacyRouteForNetId(netId, bestRoute, uid); 1198 } catch (Exception e) { 1199 // never crash - catch them all 1200 if (DBG) loge("Exception trying to add a route: " + e); 1201 return false; 1202 } 1203 return true; 1204 } 1205 1206 public void setDataDependency(int networkType, boolean met) { 1207 enforceConnectivityInternalPermission(); 1208 1209 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_DEPENDENCY_MET, 1210 (met ? ENABLED : DISABLED), networkType)); 1211 } 1212 1213 private void handleSetDependencyMet(int networkType, boolean met) { 1214 if (mNetTrackers[networkType] != null) { 1215 if (DBG) { 1216 log("handleSetDependencyMet(" + networkType + ", " + met + ")"); 1217 } 1218 mNetTrackers[networkType].setDependencyMet(met); 1219 } 1220 } 1221 1222 private INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() { 1223 @Override 1224 public void onUidRulesChanged(int uid, int uidRules) { 1225 // caller is NPMS, since we only register with them 1226 if (LOGD_RULES) { 1227 log("onUidRulesChanged(uid=" + uid + ", uidRules=" + uidRules + ")"); 1228 } 1229 1230 synchronized (mRulesLock) { 1231 // skip update when we've already applied rules 1232 final int oldRules = mUidRules.get(uid, RULE_ALLOW_ALL); 1233 if (oldRules == uidRules) return; 1234 1235 mUidRules.put(uid, uidRules); 1236 } 1237 1238 // TODO: notify UID when it has requested targeted updates 1239 } 1240 1241 @Override 1242 public void onMeteredIfacesChanged(String[] meteredIfaces) { 1243 // caller is NPMS, since we only register with them 1244 if (LOGD_RULES) { 1245 log("onMeteredIfacesChanged(ifaces=" + Arrays.toString(meteredIfaces) + ")"); 1246 } 1247 1248 synchronized (mRulesLock) { 1249 mMeteredIfaces.clear(); 1250 for (String iface : meteredIfaces) { 1251 mMeteredIfaces.add(iface); 1252 } 1253 } 1254 } 1255 1256 @Override 1257 public void onRestrictBackgroundChanged(boolean restrictBackground) { 1258 // caller is NPMS, since we only register with them 1259 if (LOGD_RULES) { 1260 log("onRestrictBackgroundChanged(restrictBackground=" + restrictBackground + ")"); 1261 } 1262 1263 // kick off connectivity change broadcast for active network, since 1264 // global background policy change is radical. 1265 final int networkType = mActiveDefaultNetwork; 1266 if (isNetworkTypeValid(networkType)) { 1267 final NetworkStateTracker tracker = mNetTrackers[networkType]; 1268 if (tracker != null) { 1269 final NetworkInfo info = tracker.getNetworkInfo(); 1270 if (info != null && info.isConnected()) { 1271 sendConnectedBroadcast(info); 1272 } 1273 } 1274 } 1275 } 1276 }; 1277 1278 @Override 1279 public void setPolicyDataEnable(int networkType, boolean enabled) { 1280 // only someone like NPMS should only be calling us 1281 mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); 1282 1283 mHandler.sendMessage(mHandler.obtainMessage( 1284 EVENT_SET_POLICY_DATA_ENABLE, networkType, (enabled ? ENABLED : DISABLED))); 1285 } 1286 1287 private void handleSetPolicyDataEnable(int networkType, boolean enabled) { 1288 // TODO - handle this passing to factories 1289// if (isNetworkTypeValid(networkType)) { 1290// final NetworkStateTracker tracker = mNetTrackers[networkType]; 1291// if (tracker != null) { 1292// tracker.setPolicyDataEnable(enabled); 1293// } 1294// } 1295 } 1296 1297 private void enforceAccessPermission() { 1298 mContext.enforceCallingOrSelfPermission( 1299 android.Manifest.permission.ACCESS_NETWORK_STATE, 1300 "ConnectivityService"); 1301 } 1302 1303 private void enforceChangePermission() { 1304 mContext.enforceCallingOrSelfPermission( 1305 android.Manifest.permission.CHANGE_NETWORK_STATE, 1306 "ConnectivityService"); 1307 } 1308 1309 // TODO Make this a special check when it goes public 1310 private void enforceTetherChangePermission() { 1311 mContext.enforceCallingOrSelfPermission( 1312 android.Manifest.permission.CHANGE_NETWORK_STATE, 1313 "ConnectivityService"); 1314 } 1315 1316 private void enforceTetherAccessPermission() { 1317 mContext.enforceCallingOrSelfPermission( 1318 android.Manifest.permission.ACCESS_NETWORK_STATE, 1319 "ConnectivityService"); 1320 } 1321 1322 private void enforceConnectivityInternalPermission() { 1323 mContext.enforceCallingOrSelfPermission( 1324 android.Manifest.permission.CONNECTIVITY_INTERNAL, 1325 "ConnectivityService"); 1326 } 1327 1328 public void sendConnectedBroadcast(NetworkInfo info) { 1329 enforceConnectivityInternalPermission(); 1330 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1331 sendGeneralBroadcast(info, CONNECTIVITY_ACTION); 1332 } 1333 1334 private void sendConnectedBroadcastDelayed(NetworkInfo info, int delayMs) { 1335 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1336 sendGeneralBroadcastDelayed(info, CONNECTIVITY_ACTION, delayMs); 1337 } 1338 1339 private void sendInetConditionBroadcast(NetworkInfo info) { 1340 sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION); 1341 } 1342 1343 private Intent makeGeneralIntent(NetworkInfo info, String bcastType) { 1344 if (mLockdownTracker != null) { 1345 info = mLockdownTracker.augmentNetworkInfo(info); 1346 } 1347 1348 Intent intent = new Intent(bcastType); 1349 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 1350 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 1351 if (info.isFailover()) { 1352 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 1353 info.setFailover(false); 1354 } 1355 if (info.getReason() != null) { 1356 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 1357 } 1358 if (info.getExtraInfo() != null) { 1359 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 1360 info.getExtraInfo()); 1361 } 1362 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 1363 return intent; 1364 } 1365 1366 private void sendGeneralBroadcast(NetworkInfo info, String bcastType) { 1367 sendStickyBroadcast(makeGeneralIntent(info, bcastType)); 1368 } 1369 1370 private void sendGeneralBroadcastDelayed(NetworkInfo info, String bcastType, int delayMs) { 1371 sendStickyBroadcastDelayed(makeGeneralIntent(info, bcastType), delayMs); 1372 } 1373 1374 private void sendDataActivityBroadcast(int deviceType, boolean active, long tsNanos) { 1375 Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); 1376 intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); 1377 intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); 1378 intent.putExtra(ConnectivityManager.EXTRA_REALTIME_NS, tsNanos); 1379 final long ident = Binder.clearCallingIdentity(); 1380 try { 1381 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, 1382 RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); 1383 } finally { 1384 Binder.restoreCallingIdentity(ident); 1385 } 1386 } 1387 1388 private void sendStickyBroadcast(Intent intent) { 1389 synchronized(this) { 1390 if (!mSystemReady) { 1391 mInitialBroadcast = new Intent(intent); 1392 } 1393 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1394 if (VDBG) { 1395 log("sendStickyBroadcast: action=" + intent.getAction()); 1396 } 1397 1398 final long ident = Binder.clearCallingIdentity(); 1399 try { 1400 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1401 } finally { 1402 Binder.restoreCallingIdentity(ident); 1403 } 1404 } 1405 } 1406 1407 private void sendStickyBroadcastDelayed(Intent intent, int delayMs) { 1408 if (delayMs <= 0) { 1409 sendStickyBroadcast(intent); 1410 } else { 1411 if (VDBG) { 1412 log("sendStickyBroadcastDelayed: delayMs=" + delayMs + ", action=" 1413 + intent.getAction()); 1414 } 1415 mHandler.sendMessageDelayed(mHandler.obtainMessage( 1416 EVENT_SEND_STICKY_BROADCAST_INTENT, intent), delayMs); 1417 } 1418 } 1419 1420 void systemReady() { 1421 // start network sampling .. 1422 Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 1423 intent.setPackage(mContext.getPackageName()); 1424 1425 mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, 1426 SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); 1427 setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); 1428 1429 loadGlobalProxy(); 1430 1431 synchronized(this) { 1432 mSystemReady = true; 1433 if (mInitialBroadcast != null) { 1434 mContext.sendStickyBroadcastAsUser(mInitialBroadcast, UserHandle.ALL); 1435 mInitialBroadcast = null; 1436 } 1437 } 1438 // load the global proxy at startup 1439 mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY)); 1440 1441 // Try bringing up tracker, but if KeyStore isn't ready yet, wait 1442 // for user to unlock device. 1443 if (!updateLockdownVpn()) { 1444 final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_PRESENT); 1445 mContext.registerReceiver(mUserPresentReceiver, filter); 1446 } 1447 1448 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SYSTEM_READY)); 1449 } 1450 1451 private BroadcastReceiver mUserPresentReceiver = new BroadcastReceiver() { 1452 @Override 1453 public void onReceive(Context context, Intent intent) { 1454 // Try creating lockdown tracker, since user present usually means 1455 // unlocked keystore. 1456 if (updateLockdownVpn()) { 1457 mContext.unregisterReceiver(this); 1458 } 1459 } 1460 }; 1461 1462 /** @hide */ 1463 @Override 1464 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 1465 enforceConnectivityInternalPermission(); 1466 if (DBG) log("captivePortalCheckCompleted: ni=" + info + " captive=" + isCaptivePortal); 1467// mNetTrackers[info.getType()].captivePortalCheckCompleted(isCaptivePortal); 1468 } 1469 1470 /** 1471 * Setup data activity tracking for the given network. 1472 * 1473 * Every {@code setupDataActivityTracking} should be paired with a 1474 * {@link #removeDataActivityTracking} for cleanup. 1475 */ 1476 private void setupDataActivityTracking(NetworkAgentInfo networkAgent) { 1477 final String iface = networkAgent.linkProperties.getInterfaceName(); 1478 1479 final int timeout; 1480 int type = ConnectivityManager.TYPE_NONE; 1481 1482 if (networkAgent.networkCapabilities.hasTransport( 1483 NetworkCapabilities.TRANSPORT_CELLULAR)) { 1484 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1485 Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, 1486 5); 1487 type = ConnectivityManager.TYPE_MOBILE; 1488 } else if (networkAgent.networkCapabilities.hasTransport( 1489 NetworkCapabilities.TRANSPORT_WIFI)) { 1490 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1491 Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, 1492 0); 1493 type = ConnectivityManager.TYPE_WIFI; 1494 } else { 1495 // do not track any other networks 1496 timeout = 0; 1497 } 1498 1499 if (timeout > 0 && iface != null && type != ConnectivityManager.TYPE_NONE) { 1500 try { 1501 mNetd.addIdleTimer(iface, timeout, type); 1502 } catch (Exception e) { 1503 // You shall not crash! 1504 loge("Exception in setupDataActivityTracking " + e); 1505 } 1506 } 1507 } 1508 1509 /** 1510 * Remove data activity tracking when network disconnects. 1511 */ 1512 private void removeDataActivityTracking(NetworkAgentInfo networkAgent) { 1513 final String iface = networkAgent.linkProperties.getInterfaceName(); 1514 final NetworkCapabilities caps = networkAgent.networkCapabilities; 1515 1516 if (iface != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) || 1517 caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))) { 1518 try { 1519 // the call fails silently if no idletimer setup for this interface 1520 mNetd.removeIdleTimer(iface); 1521 } catch (Exception e) { 1522 loge("Exception in removeDataActivityTracking " + e); 1523 } 1524 } 1525 } 1526 1527 /** 1528 * Reads the network specific MTU size from reources. 1529 * and set it on it's iface. 1530 */ 1531 private void updateMtu(LinkProperties newLp, LinkProperties oldLp) { 1532 final String iface = newLp.getInterfaceName(); 1533 final int mtu = newLp.getMtu(); 1534 if (oldLp != null && newLp.isIdenticalMtu(oldLp)) { 1535 if (VDBG) log("identical MTU - not setting"); 1536 return; 1537 } 1538 1539 if (LinkProperties.isValidMtu(mtu, newLp.hasGlobalIPv6Address()) == false) { 1540 loge("Unexpected mtu value: " + mtu + ", " + iface); 1541 return; 1542 } 1543 1544 // Cannot set MTU without interface name 1545 if (TextUtils.isEmpty(iface)) { 1546 loge("Setting MTU size with null iface."); 1547 return; 1548 } 1549 1550 try { 1551 if (VDBG) log("Setting MTU size: " + iface + ", " + mtu); 1552 mNetd.setMtu(iface, mtu); 1553 } catch (Exception e) { 1554 Slog.e(TAG, "exception in setMtu()" + e); 1555 } 1556 } 1557 1558 private static final String DEFAULT_TCP_BUFFER_SIZES = "4096,87380,110208,4096,16384,110208"; 1559 1560 private void updateTcpBufferSizes(NetworkAgentInfo nai) { 1561 if (isDefaultNetwork(nai) == false) { 1562 return; 1563 } 1564 1565 String tcpBufferSizes = nai.linkProperties.getTcpBufferSizes(); 1566 String[] values = null; 1567 if (tcpBufferSizes != null) { 1568 values = tcpBufferSizes.split(","); 1569 } 1570 1571 if (values == null || values.length != 6) { 1572 if (VDBG) log("Invalid tcpBufferSizes string: " + tcpBufferSizes +", using defaults"); 1573 tcpBufferSizes = DEFAULT_TCP_BUFFER_SIZES; 1574 values = tcpBufferSizes.split(","); 1575 } 1576 1577 if (tcpBufferSizes.equals(mCurrentTcpBufferSizes)) return; 1578 1579 try { 1580 if (VDBG) Slog.d(TAG, "Setting tx/rx TCP buffers to " + tcpBufferSizes); 1581 1582 final String prefix = "/sys/kernel/ipv4/tcp_"; 1583 FileUtils.stringToFile(prefix + "rmem_min", values[0]); 1584 FileUtils.stringToFile(prefix + "rmem_def", values[1]); 1585 FileUtils.stringToFile(prefix + "rmem_max", values[2]); 1586 FileUtils.stringToFile(prefix + "wmem_min", values[3]); 1587 FileUtils.stringToFile(prefix + "wmem_def", values[4]); 1588 FileUtils.stringToFile(prefix + "wmem_max", values[5]); 1589 mCurrentTcpBufferSizes = tcpBufferSizes; 1590 } catch (IOException e) { 1591 loge("Can't set TCP buffer sizes:" + e); 1592 } 1593 1594 final String defaultRwndKey = "net.tcp.default_init_rwnd"; 1595 int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0); 1596 Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(), 1597 Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue); 1598 final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd"; 1599 if (rwndValue != 0) { 1600 SystemProperties.set(sysctlKey, rwndValue.toString()); 1601 } 1602 } 1603 1604 private void flushVmDnsCache() { 1605 /* 1606 * Tell the VMs to toss their DNS caches 1607 */ 1608 Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE); 1609 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); 1610 /* 1611 * Connectivity events can happen before boot has completed ... 1612 */ 1613 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1614 final long ident = Binder.clearCallingIdentity(); 1615 try { 1616 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 1617 } finally { 1618 Binder.restoreCallingIdentity(ident); 1619 } 1620 } 1621 1622 @Override 1623 public int getRestoreDefaultNetworkDelay(int networkType) { 1624 String restoreDefaultNetworkDelayStr = SystemProperties.get( 1625 NETWORK_RESTORE_DELAY_PROP_NAME); 1626 if(restoreDefaultNetworkDelayStr != null && 1627 restoreDefaultNetworkDelayStr.length() != 0) { 1628 try { 1629 return Integer.valueOf(restoreDefaultNetworkDelayStr); 1630 } catch (NumberFormatException e) { 1631 } 1632 } 1633 // if the system property isn't set, use the value for the apn type 1634 int ret = RESTORE_DEFAULT_NETWORK_DELAY; 1635 1636 if ((networkType <= ConnectivityManager.MAX_NETWORK_TYPE) && 1637 (mNetConfigs[networkType] != null)) { 1638 ret = mNetConfigs[networkType].restoreTime; 1639 } 1640 return ret; 1641 } 1642 1643 @Override 1644 protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { 1645 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1646 if (mContext.checkCallingOrSelfPermission( 1647 android.Manifest.permission.DUMP) 1648 != PackageManager.PERMISSION_GRANTED) { 1649 pw.println("Permission Denial: can't dump ConnectivityService " + 1650 "from from pid=" + Binder.getCallingPid() + ", uid=" + 1651 Binder.getCallingUid()); 1652 return; 1653 } 1654 1655 pw.println("NetworkFactories for:"); 1656 pw.increaseIndent(); 1657 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 1658 pw.println(nfi.name); 1659 } 1660 pw.decreaseIndent(); 1661 pw.println(); 1662 1663 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 1664 pw.print("Active default network: "); 1665 if (defaultNai == null) { 1666 pw.println("none"); 1667 } else { 1668 pw.println(defaultNai.network.netId); 1669 } 1670 pw.println(); 1671 1672 pw.println("Current Networks:"); 1673 pw.increaseIndent(); 1674 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 1675 pw.println(nai.toString()); 1676 pw.increaseIndent(); 1677 pw.println("Requests:"); 1678 pw.increaseIndent(); 1679 for (int i = 0; i < nai.networkRequests.size(); i++) { 1680 pw.println(nai.networkRequests.valueAt(i).toString()); 1681 } 1682 pw.decreaseIndent(); 1683 pw.println("Lingered:"); 1684 pw.increaseIndent(); 1685 for (NetworkRequest nr : nai.networkLingered) pw.println(nr.toString()); 1686 pw.decreaseIndent(); 1687 pw.decreaseIndent(); 1688 } 1689 pw.decreaseIndent(); 1690 pw.println(); 1691 1692 pw.println("Network Requests:"); 1693 pw.increaseIndent(); 1694 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 1695 pw.println(nri.toString()); 1696 } 1697 pw.println(); 1698 pw.decreaseIndent(); 1699 1700 pw.print("mActiveDefaultNetwork: " + mActiveDefaultNetwork); 1701 if (mActiveDefaultNetwork != TYPE_NONE) { 1702 NetworkInfo activeNetworkInfo = getActiveNetworkInfo(); 1703 if (activeNetworkInfo != null) { 1704 pw.print(" " + activeNetworkInfo.getState() + 1705 "/" + activeNetworkInfo.getDetailedState()); 1706 } 1707 } 1708 pw.println(); 1709 1710 pw.println("mLegacyTypeTracker:"); 1711 pw.increaseIndent(); 1712 mLegacyTypeTracker.dump(pw); 1713 pw.decreaseIndent(); 1714 pw.println(); 1715 1716 synchronized (this) { 1717 pw.println("NetworkTranstionWakeLock is currently " + 1718 (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held."); 1719 pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy); 1720 } 1721 pw.println(); 1722 1723 mTethering.dump(fd, pw, args); 1724 1725 if (mInetLog != null) { 1726 pw.println(); 1727 pw.println("Inet condition reports:"); 1728 pw.increaseIndent(); 1729 for(int i = 0; i < mInetLog.size(); i++) { 1730 pw.println(mInetLog.get(i)); 1731 } 1732 pw.decreaseIndent(); 1733 } 1734 } 1735 1736 // must be stateless - things change under us. 1737 private class NetworkStateTrackerHandler extends Handler { 1738 public NetworkStateTrackerHandler(Looper looper) { 1739 super(looper); 1740 } 1741 1742 @Override 1743 public void handleMessage(Message msg) { 1744 NetworkInfo info; 1745 switch (msg.what) { 1746 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 1747 handleAsyncChannelHalfConnect(msg); 1748 break; 1749 } 1750 case AsyncChannel.CMD_CHANNEL_DISCONNECT: { 1751 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1752 if (nai != null) nai.asyncChannel.disconnect(); 1753 break; 1754 } 1755 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 1756 handleAsyncChannelDisconnected(msg); 1757 break; 1758 } 1759 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { 1760 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1761 if (nai == null) { 1762 loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); 1763 } else { 1764 updateCapabilities(nai, (NetworkCapabilities)msg.obj); 1765 } 1766 break; 1767 } 1768 case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { 1769 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1770 if (nai == null) { 1771 loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); 1772 } else { 1773 if (VDBG) { 1774 log("Update of Linkproperties for " + nai.name() + 1775 "; created=" + nai.created); 1776 } 1777 LinkProperties oldLp = nai.linkProperties; 1778 synchronized (nai) { 1779 nai.linkProperties = (LinkProperties)msg.obj; 1780 } 1781 if (nai.created) updateLinkProperties(nai, oldLp); 1782 } 1783 break; 1784 } 1785 case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { 1786 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1787 if (nai == null) { 1788 loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); 1789 break; 1790 } 1791 info = (NetworkInfo) msg.obj; 1792 updateNetworkInfo(nai, info); 1793 break; 1794 } 1795 case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { 1796 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1797 if (nai == null) { 1798 loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); 1799 break; 1800 } 1801 Integer score = (Integer) msg.obj; 1802 if (score != null) updateNetworkScore(nai, score.intValue()); 1803 break; 1804 } 1805 case NetworkAgent.EVENT_UID_RANGES_ADDED: { 1806 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1807 if (nai == null) { 1808 loge("EVENT_UID_RANGES_ADDED from unknown NetworkAgent"); 1809 break; 1810 } 1811 try { 1812 mNetd.addVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1813 } catch (Exception e) { 1814 // Never crash! 1815 loge("Exception in addVpnUidRanges: " + e); 1816 } 1817 break; 1818 } 1819 case NetworkAgent.EVENT_UID_RANGES_REMOVED: { 1820 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1821 if (nai == null) { 1822 loge("EVENT_UID_RANGES_REMOVED from unknown NetworkAgent"); 1823 break; 1824 } 1825 try { 1826 mNetd.removeVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1827 } catch (Exception e) { 1828 // Never crash! 1829 loge("Exception in removeVpnUidRanges: " + e); 1830 } 1831 break; 1832 } 1833 case NetworkAgent.EVENT_BLOCK_ADDRESS_FAMILY: { 1834 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1835 if (nai == null) { 1836 loge("EVENT_BLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1837 break; 1838 } 1839 try { 1840 mNetd.blockAddressFamily((Integer) msg.obj, nai.network.netId, 1841 nai.linkProperties.getInterfaceName()); 1842 } catch (Exception e) { 1843 // Never crash! 1844 loge("Exception in blockAddressFamily: " + e); 1845 } 1846 break; 1847 } 1848 case NetworkAgent.EVENT_UNBLOCK_ADDRESS_FAMILY: { 1849 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1850 if (nai == null) { 1851 loge("EVENT_UNBLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1852 break; 1853 } 1854 try { 1855 mNetd.unblockAddressFamily((Integer) msg.obj, nai.network.netId, 1856 nai.linkProperties.getInterfaceName()); 1857 } catch (Exception e) { 1858 // Never crash! 1859 loge("Exception in blockAddressFamily: " + e); 1860 } 1861 break; 1862 } 1863 case NetworkMonitor.EVENT_NETWORK_VALIDATED: { 1864 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1865 handleConnectionValidated(nai); 1866 break; 1867 } 1868 case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { 1869 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1870 handleLingerComplete(nai); 1871 break; 1872 } 1873 case NetworkMonitor.EVENT_PROVISIONING_NOTIFICATION: { 1874 if (msg.arg1 == 0) { 1875 setProvNotificationVisibleIntent(false, msg.arg2, 0, null, null); 1876 } else { 1877 NetworkAgentInfo nai = mNetworkForNetId.get(msg.arg2); 1878 if (nai == null) { 1879 loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); 1880 break; 1881 } 1882 setProvNotificationVisibleIntent(true, msg.arg2, nai.networkInfo.getType(), 1883 nai.networkInfo.getExtraInfo(), (PendingIntent)msg.obj); 1884 } 1885 break; 1886 } 1887 case NetworkStateTracker.EVENT_STATE_CHANGED: { 1888 info = (NetworkInfo) msg.obj; 1889 NetworkInfo.State state = info.getState(); 1890 1891 if (VDBG || (state == NetworkInfo.State.CONNECTED) || 1892 (state == NetworkInfo.State.DISCONNECTED) || 1893 (state == NetworkInfo.State.SUSPENDED)) { 1894 log("ConnectivityChange for " + 1895 info.getTypeName() + ": " + 1896 state + "/" + info.getDetailedState()); 1897 } 1898 1899 // Since mobile has the notion of a network/apn that can be used for 1900 // provisioning we need to check every time we're connected as 1901 // CaptiveProtalTracker won't detected it because DCT doesn't report it 1902 // as connected as ACTION_ANY_DATA_CONNECTION_STATE_CHANGED instead its 1903 // reported as ACTION_DATA_CONNECTION_CONNECTED_TO_PROVISIONING_APN. Which 1904 // is received by MDST and sent here as EVENT_STATE_CHANGED. 1905 if (ConnectivityManager.isNetworkTypeMobile(info.getType()) 1906 && (0 != Settings.Global.getInt(mContext.getContentResolver(), 1907 Settings.Global.DEVICE_PROVISIONED, 0)) 1908 && (((state == NetworkInfo.State.CONNECTED) 1909 && (info.getType() == ConnectivityManager.TYPE_MOBILE)) 1910 || info.isConnectedToProvisioningNetwork())) { 1911 log("ConnectivityChange checkMobileProvisioning for" 1912 + " TYPE_MOBILE or ProvisioningNetwork"); 1913 checkMobileProvisioning(CheckMp.MAX_TIMEOUT_MS); 1914 } 1915 1916 EventLogTags.writeConnectivityStateChanged( 1917 info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); 1918 1919 if (info.isConnectedToProvisioningNetwork()) { 1920 /** 1921 * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING 1922 * for now its an in between network, its a network that 1923 * is actually a default network but we don't want it to be 1924 * announced as such to keep background applications from 1925 * trying to use it. It turns out that some still try so we 1926 * take the additional step of clearing any default routes 1927 * to the link that may have incorrectly setup by the lower 1928 * levels. 1929 */ 1930 LinkProperties lp = getLinkPropertiesForTypeInternal(info.getType()); 1931 if (DBG) { 1932 log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); 1933 } 1934 1935 // Clear any default routes setup by the radio so 1936 // any activity by applications trying to use this 1937 // connection will fail until the provisioning network 1938 // is enabled. 1939 /* 1940 for (RouteInfo r : lp.getRoutes()) { 1941 removeRoute(lp, r, TO_DEFAULT_TABLE, 1942 mNetTrackers[info.getType()].getNetwork().netId); 1943 } 1944 */ 1945 } else if (state == NetworkInfo.State.DISCONNECTED) { 1946 } else if (state == NetworkInfo.State.SUSPENDED) { 1947 } else if (state == NetworkInfo.State.CONNECTED) { 1948 // handleConnect(info); 1949 } 1950 if (mLockdownTracker != null) { 1951 mLockdownTracker.onNetworkInfoChanged(info); 1952 } 1953 break; 1954 } 1955 case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { 1956 info = (NetworkInfo) msg.obj; 1957 // TODO: Temporary allowing network configuration 1958 // change not resetting sockets. 1959 // @see bug/4455071 1960 /* 1961 handleConnectivityChange(info.getType(), mCurrentLinkProperties[info.getType()], 1962 false); 1963 */ 1964 break; 1965 } 1966 } 1967 } 1968 } 1969 1970 private void handleAsyncChannelHalfConnect(Message msg) { 1971 AsyncChannel ac = (AsyncChannel) msg.obj; 1972 if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { 1973 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 1974 if (VDBG) log("NetworkFactory connected"); 1975 // A network factory has connected. Send it all current NetworkRequests. 1976 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 1977 if (nri.isRequest == false) continue; 1978 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 1979 ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, 1980 (nai != null ? nai.currentScore : 0), 0, nri.request); 1981 } 1982 } else { 1983 loge("Error connecting NetworkFactory"); 1984 mNetworkFactoryInfos.remove(msg.obj); 1985 } 1986 } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { 1987 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 1988 if (VDBG) log("NetworkAgent connected"); 1989 // A network agent has requested a connection. Establish the connection. 1990 mNetworkAgentInfos.get(msg.replyTo).asyncChannel. 1991 sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 1992 } else { 1993 loge("Error connecting NetworkAgent"); 1994 NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); 1995 if (nai != null) { 1996 synchronized (mNetworkForNetId) { 1997 mNetworkForNetId.remove(nai.network.netId); 1998 } 1999 // Just in case. 2000 mLegacyTypeTracker.remove(nai); 2001 } 2002 } 2003 } 2004 } 2005 private void handleAsyncChannelDisconnected(Message msg) { 2006 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 2007 if (nai != null) { 2008 if (DBG) { 2009 log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); 2010 } 2011 // A network agent has disconnected. 2012 if (nai.created) { 2013 // Tell netd to clean up the configuration for this network 2014 // (routing rules, DNS, etc). 2015 try { 2016 mNetd.removeNetwork(nai.network.netId); 2017 } catch (Exception e) { 2018 loge("Exception removing network: " + e); 2019 } 2020 } 2021 // TODO - if we move the logic to the network agent (have them disconnect 2022 // because they lost all their requests or because their score isn't good) 2023 // then they would disconnect organically, report their new state and then 2024 // disconnect the channel. 2025 if (nai.networkInfo.isConnected()) { 2026 nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, 2027 null, null); 2028 } 2029 if (isDefaultNetwork(nai)) { 2030 mDefaultInetConditionPublished = 0; 2031 } 2032 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); 2033 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); 2034 mNetworkAgentInfos.remove(msg.replyTo); 2035 updateClat(null, nai.linkProperties, nai); 2036 mLegacyTypeTracker.remove(nai); 2037 synchronized (mNetworkForNetId) { 2038 mNetworkForNetId.remove(nai.network.netId); 2039 } 2040 // Since we've lost the network, go through all the requests that 2041 // it was satisfying and see if any other factory can satisfy them. 2042 final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); 2043 for (int i = 0; i < nai.networkRequests.size(); i++) { 2044 NetworkRequest request = nai.networkRequests.valueAt(i); 2045 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); 2046 if (VDBG) { 2047 log(" checking request " + request + ", currentNetwork = " + 2048 (currentNetwork != null ? currentNetwork.name() : "null")); 2049 } 2050 if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { 2051 mNetworkForRequestId.remove(request.requestId); 2052 sendUpdatedScoreToFactories(request, 0); 2053 NetworkAgentInfo alternative = null; 2054 for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { 2055 NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); 2056 if (existing.networkInfo.isConnected() && 2057 request.networkCapabilities.satisfiedByNetworkCapabilities( 2058 existing.networkCapabilities) && 2059 (alternative == null || 2060 alternative.currentScore < existing.currentScore)) { 2061 alternative = existing; 2062 } 2063 } 2064 if (alternative != null && !toActivate.contains(alternative)) { 2065 toActivate.add(alternative); 2066 } 2067 } 2068 } 2069 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 2070 removeDataActivityTracking(nai); 2071 mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; 2072 requestNetworkTransitionWakelock(nai.name()); 2073 } 2074 for (NetworkAgentInfo networkToActivate : toActivate) { 2075 networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2076 } 2077 } 2078 } 2079 2080 private void handleRegisterNetworkRequest(Message msg) { 2081 final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); 2082 final NetworkCapabilities newCap = nri.request.networkCapabilities; 2083 int score = 0; 2084 2085 // Check for the best currently alive network that satisfies this request 2086 NetworkAgentInfo bestNetwork = null; 2087 for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { 2088 if (VDBG) log("handleRegisterNetworkRequest checking " + network.name()); 2089 if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { 2090 if (VDBG) log("apparently satisfied. currentScore=" + network.currentScore); 2091 if ((bestNetwork == null) || bestNetwork.currentScore < network.currentScore) { 2092 bestNetwork = network; 2093 } 2094 } 2095 } 2096 if (bestNetwork != null) { 2097 if (VDBG) log("using " + bestNetwork.name()); 2098 if (nri.isRequest && bestNetwork.networkInfo.isConnected()) { 2099 // Cancel any lingering so the linger timeout doesn't teardown this network 2100 // even though we have a request for it. 2101 bestNetwork.networkLingered.clear(); 2102 bestNetwork.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2103 } 2104 bestNetwork.addRequest(nri.request); 2105 mNetworkForRequestId.put(nri.request.requestId, bestNetwork); 2106 notifyNetworkCallback(bestNetwork, nri); 2107 score = bestNetwork.currentScore; 2108 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 2109 mLegacyTypeTracker.add(nri.request.legacyType, bestNetwork); 2110 } 2111 } 2112 mNetworkRequests.put(nri.request, nri); 2113 if (nri.isRequest) { 2114 if (DBG) log("sending new NetworkRequest to factories"); 2115 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2116 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 2117 0, nri.request); 2118 } 2119 } 2120 } 2121 2122 private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) { 2123 NetworkRequestInfo nri = mNetworkRequests.get(request); 2124 if (nri != null) { 2125 if (nri.mUid != callingUid) { 2126 if (DBG) log("Attempt to release unowned NetworkRequest " + request); 2127 return; 2128 } 2129 if (DBG) log("releasing NetworkRequest " + request); 2130 nri.unlinkDeathRecipient(); 2131 mNetworkRequests.remove(request); 2132 // tell the network currently servicing this that it's no longer interested 2133 NetworkAgentInfo affectedNetwork = mNetworkForRequestId.get(nri.request.requestId); 2134 if (affectedNetwork != null) { 2135 mNetworkForRequestId.remove(nri.request.requestId); 2136 affectedNetwork.networkRequests.remove(nri.request.requestId); 2137 if (VDBG) { 2138 log(" Removing from current network " + affectedNetwork.name() + ", leaving " + 2139 affectedNetwork.networkRequests.size() + " requests."); 2140 } 2141 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 2142 mLegacyTypeTracker.remove(nri.request.legacyType, affectedNetwork); 2143 } 2144 } 2145 2146 if (nri.isRequest) { 2147 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2148 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 2149 nri.request); 2150 } 2151 2152 if (affectedNetwork != null) { 2153 // check if this network still has live requests - otherwise, tear down 2154 // TODO - probably push this to the NF/NA 2155 boolean keep = affectedNetwork.isVPN(); 2156 for (int i = 0; i < affectedNetwork.networkRequests.size() && !keep; i++) { 2157 NetworkRequest r = affectedNetwork.networkRequests.valueAt(i); 2158 if (mNetworkRequests.get(r).isRequest) { 2159 keep = true; 2160 } 2161 } 2162 if (keep == false) { 2163 if (DBG) log("no live requests for " + affectedNetwork.name() + 2164 "; disconnecting"); 2165 affectedNetwork.asyncChannel.disconnect(); 2166 } 2167 } 2168 } 2169 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 2170 } 2171 } 2172 2173 private class InternalHandler extends Handler { 2174 public InternalHandler(Looper looper) { 2175 super(looper); 2176 } 2177 2178 @Override 2179 public void handleMessage(Message msg) { 2180 NetworkInfo info; 2181 switch (msg.what) { 2182 case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: 2183 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 2184 String causedBy = null; 2185 synchronized (ConnectivityService.this) { 2186 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 2187 mNetTransitionWakeLock.isHeld()) { 2188 mNetTransitionWakeLock.release(); 2189 causedBy = mNetTransitionWakeLockCausedBy; 2190 } else { 2191 break; 2192 } 2193 } 2194 if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { 2195 log("Failed to find a new network - expiring NetTransition Wakelock"); 2196 } else { 2197 log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + 2198 " cleared because we found a replacement network"); 2199 } 2200 break; 2201 } 2202 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 2203 handleDeprecatedGlobalHttpProxy(); 2204 break; 2205 } 2206 case EVENT_SET_DEPENDENCY_MET: { 2207 boolean met = (msg.arg1 == ENABLED); 2208 handleSetDependencyMet(msg.arg2, met); 2209 break; 2210 } 2211 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 2212 Intent intent = (Intent)msg.obj; 2213 sendStickyBroadcast(intent); 2214 break; 2215 } 2216 case EVENT_SET_POLICY_DATA_ENABLE: { 2217 final int networkType = msg.arg1; 2218 final boolean enabled = msg.arg2 == ENABLED; 2219 handleSetPolicyDataEnable(networkType, enabled); 2220 break; 2221 } 2222 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 2223 int tag = mEnableFailFastMobileDataTag.get(); 2224 if (msg.arg1 == tag) { 2225 MobileDataStateTracker mobileDst = 2226 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2227 if (mobileDst != null) { 2228 mobileDst.setEnableFailFastMobileData(msg.arg2); 2229 } 2230 } else { 2231 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 2232 + " != tag:" + tag); 2233 } 2234 break; 2235 } 2236 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 2237 handleNetworkSamplingTimeout(); 2238 break; 2239 } 2240 case EVENT_PROXY_HAS_CHANGED: { 2241 handleApplyDefaultProxy((ProxyInfo)msg.obj); 2242 break; 2243 } 2244 case EVENT_REGISTER_NETWORK_FACTORY: { 2245 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 2246 break; 2247 } 2248 case EVENT_UNREGISTER_NETWORK_FACTORY: { 2249 handleUnregisterNetworkFactory((Messenger)msg.obj); 2250 break; 2251 } 2252 case EVENT_REGISTER_NETWORK_AGENT: { 2253 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 2254 break; 2255 } 2256 case EVENT_REGISTER_NETWORK_REQUEST: 2257 case EVENT_REGISTER_NETWORK_LISTENER: { 2258 handleRegisterNetworkRequest(msg); 2259 break; 2260 } 2261 case EVENT_RELEASE_NETWORK_REQUEST: { 2262 handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); 2263 break; 2264 } 2265 case EVENT_SYSTEM_READY: { 2266 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2267 nai.networkMonitor.systemReady = true; 2268 } 2269 break; 2270 } 2271 } 2272 } 2273 } 2274 2275 // javadoc from interface 2276 public int tether(String iface) { 2277 enforceTetherChangePermission(); 2278 2279 if (isTetheringSupported()) { 2280 return mTethering.tether(iface); 2281 } else { 2282 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2283 } 2284 } 2285 2286 // javadoc from interface 2287 public int untether(String iface) { 2288 enforceTetherChangePermission(); 2289 2290 if (isTetheringSupported()) { 2291 return mTethering.untether(iface); 2292 } else { 2293 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2294 } 2295 } 2296 2297 // javadoc from interface 2298 public int getLastTetherError(String iface) { 2299 enforceTetherAccessPermission(); 2300 2301 if (isTetheringSupported()) { 2302 return mTethering.getLastTetherError(iface); 2303 } else { 2304 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2305 } 2306 } 2307 2308 // TODO - proper iface API for selection by property, inspection, etc 2309 public String[] getTetherableUsbRegexs() { 2310 enforceTetherAccessPermission(); 2311 if (isTetheringSupported()) { 2312 return mTethering.getTetherableUsbRegexs(); 2313 } else { 2314 return new String[0]; 2315 } 2316 } 2317 2318 public String[] getTetherableWifiRegexs() { 2319 enforceTetherAccessPermission(); 2320 if (isTetheringSupported()) { 2321 return mTethering.getTetherableWifiRegexs(); 2322 } else { 2323 return new String[0]; 2324 } 2325 } 2326 2327 public String[] getTetherableBluetoothRegexs() { 2328 enforceTetherAccessPermission(); 2329 if (isTetheringSupported()) { 2330 return mTethering.getTetherableBluetoothRegexs(); 2331 } else { 2332 return new String[0]; 2333 } 2334 } 2335 2336 public int setUsbTethering(boolean enable) { 2337 enforceTetherChangePermission(); 2338 if (isTetheringSupported()) { 2339 return mTethering.setUsbTethering(enable); 2340 } else { 2341 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2342 } 2343 } 2344 2345 // TODO - move iface listing, queries, etc to new module 2346 // javadoc from interface 2347 public String[] getTetherableIfaces() { 2348 enforceTetherAccessPermission(); 2349 return mTethering.getTetherableIfaces(); 2350 } 2351 2352 public String[] getTetheredIfaces() { 2353 enforceTetherAccessPermission(); 2354 return mTethering.getTetheredIfaces(); 2355 } 2356 2357 public String[] getTetheringErroredIfaces() { 2358 enforceTetherAccessPermission(); 2359 return mTethering.getErroredIfaces(); 2360 } 2361 2362 public String[] getTetheredDhcpRanges() { 2363 enforceConnectivityInternalPermission(); 2364 return mTethering.getTetheredDhcpRanges(); 2365 } 2366 2367 // if ro.tether.denied = true we default to no tethering 2368 // gservices could set the secure setting to 1 though to enable it on a build where it 2369 // had previously been turned off. 2370 public boolean isTetheringSupported() { 2371 enforceTetherAccessPermission(); 2372 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 2373 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 2374 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0) 2375 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); 2376 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 2377 mTethering.getTetherableWifiRegexs().length != 0 || 2378 mTethering.getTetherableBluetoothRegexs().length != 0) && 2379 mTethering.getUpstreamIfaceTypes().length != 0); 2380 } 2381 2382 // Called when we lose the default network and have no replacement yet. 2383 // This will automatically be cleared after X seconds or a new default network 2384 // becomes CONNECTED, whichever happens first. The timer is started by the 2385 // first caller and not restarted by subsequent callers. 2386 private void requestNetworkTransitionWakelock(String forWhom) { 2387 int serialNum = 0; 2388 synchronized (this) { 2389 if (mNetTransitionWakeLock.isHeld()) return; 2390 serialNum = ++mNetTransitionWakeLockSerialNumber; 2391 mNetTransitionWakeLock.acquire(); 2392 mNetTransitionWakeLockCausedBy = forWhom; 2393 } 2394 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2395 EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), 2396 mNetTransitionWakeLockTimeout); 2397 return; 2398 } 2399 2400 // 100 percent is full good, 0 is full bad. 2401 public void reportInetCondition(int networkType, int percentage) { 2402 if (percentage > 50) return; // don't handle good network reports 2403 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 2404 if (nai != null) reportBadNetwork(nai.network); 2405 } 2406 2407 public void reportBadNetwork(Network network) { 2408 //TODO 2409 } 2410 2411 public ProxyInfo getProxy() { 2412 // this information is already available as a world read/writable jvm property 2413 // so this API change wouldn't have a benifit. It also breaks the passing 2414 // of proxy info to all the JVMs. 2415 // enforceAccessPermission(); 2416 synchronized (mProxyLock) { 2417 ProxyInfo ret = mGlobalProxy; 2418 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 2419 return ret; 2420 } 2421 } 2422 2423 public void setGlobalProxy(ProxyInfo proxyProperties) { 2424 enforceConnectivityInternalPermission(); 2425 2426 synchronized (mProxyLock) { 2427 if (proxyProperties == mGlobalProxy) return; 2428 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 2429 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 2430 2431 String host = ""; 2432 int port = 0; 2433 String exclList = ""; 2434 String pacFileUrl = ""; 2435 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 2436 (proxyProperties.getPacFileUrl() != null))) { 2437 if (!proxyProperties.isValid()) { 2438 if (DBG) 2439 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2440 return; 2441 } 2442 mGlobalProxy = new ProxyInfo(proxyProperties); 2443 host = mGlobalProxy.getHost(); 2444 port = mGlobalProxy.getPort(); 2445 exclList = mGlobalProxy.getExclusionListAsString(); 2446 if (proxyProperties.getPacFileUrl() != null) { 2447 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 2448 } 2449 } else { 2450 mGlobalProxy = null; 2451 } 2452 ContentResolver res = mContext.getContentResolver(); 2453 final long token = Binder.clearCallingIdentity(); 2454 try { 2455 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 2456 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 2457 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 2458 exclList); 2459 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 2460 } finally { 2461 Binder.restoreCallingIdentity(token); 2462 } 2463 } 2464 2465 if (mGlobalProxy == null) { 2466 proxyProperties = mDefaultProxy; 2467 } 2468 sendProxyBroadcast(proxyProperties); 2469 } 2470 2471 private void loadGlobalProxy() { 2472 ContentResolver res = mContext.getContentResolver(); 2473 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 2474 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 2475 String exclList = Settings.Global.getString(res, 2476 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 2477 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 2478 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 2479 ProxyInfo proxyProperties; 2480 if (!TextUtils.isEmpty(pacFileUrl)) { 2481 proxyProperties = new ProxyInfo(pacFileUrl); 2482 } else { 2483 proxyProperties = new ProxyInfo(host, port, exclList); 2484 } 2485 if (!proxyProperties.isValid()) { 2486 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2487 return; 2488 } 2489 2490 synchronized (mProxyLock) { 2491 mGlobalProxy = proxyProperties; 2492 } 2493 } 2494 } 2495 2496 public ProxyInfo getGlobalProxy() { 2497 // this information is already available as a world read/writable jvm property 2498 // so this API change wouldn't have a benifit. It also breaks the passing 2499 // of proxy info to all the JVMs. 2500 // enforceAccessPermission(); 2501 synchronized (mProxyLock) { 2502 return mGlobalProxy; 2503 } 2504 } 2505 2506 private void handleApplyDefaultProxy(ProxyInfo proxy) { 2507 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 2508 && (proxy.getPacFileUrl() == null)) { 2509 proxy = null; 2510 } 2511 synchronized (mProxyLock) { 2512 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 2513 if (mDefaultProxy == proxy) return; // catches repeated nulls 2514 if (proxy != null && !proxy.isValid()) { 2515 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 2516 return; 2517 } 2518 2519 // This call could be coming from the PacManager, containing the port of the local 2520 // proxy. If this new proxy matches the global proxy then copy this proxy to the 2521 // global (to get the correct local port), and send a broadcast. 2522 // TODO: Switch PacManager to have its own message to send back rather than 2523 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 2524 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 2525 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 2526 mGlobalProxy = proxy; 2527 sendProxyBroadcast(mGlobalProxy); 2528 return; 2529 } 2530 mDefaultProxy = proxy; 2531 2532 if (mGlobalProxy != null) return; 2533 if (!mDefaultProxyDisabled) { 2534 sendProxyBroadcast(proxy); 2535 } 2536 } 2537 } 2538 2539 private void handleDeprecatedGlobalHttpProxy() { 2540 String proxy = Settings.Global.getString(mContext.getContentResolver(), 2541 Settings.Global.HTTP_PROXY); 2542 if (!TextUtils.isEmpty(proxy)) { 2543 String data[] = proxy.split(":"); 2544 if (data.length == 0) { 2545 return; 2546 } 2547 2548 String proxyHost = data[0]; 2549 int proxyPort = 8080; 2550 if (data.length > 1) { 2551 try { 2552 proxyPort = Integer.parseInt(data[1]); 2553 } catch (NumberFormatException e) { 2554 return; 2555 } 2556 } 2557 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 2558 setGlobalProxy(p); 2559 } 2560 } 2561 2562 private void sendProxyBroadcast(ProxyInfo proxy) { 2563 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 2564 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 2565 if (DBG) log("sending Proxy Broadcast for " + proxy); 2566 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 2567 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 2568 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2569 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 2570 final long ident = Binder.clearCallingIdentity(); 2571 try { 2572 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2573 } finally { 2574 Binder.restoreCallingIdentity(ident); 2575 } 2576 } 2577 2578 private static class SettingsObserver extends ContentObserver { 2579 private int mWhat; 2580 private Handler mHandler; 2581 SettingsObserver(Handler handler, int what) { 2582 super(handler); 2583 mHandler = handler; 2584 mWhat = what; 2585 } 2586 2587 void observe(Context context) { 2588 ContentResolver resolver = context.getContentResolver(); 2589 resolver.registerContentObserver(Settings.Global.getUriFor( 2590 Settings.Global.HTTP_PROXY), false, this); 2591 } 2592 2593 @Override 2594 public void onChange(boolean selfChange) { 2595 mHandler.obtainMessage(mWhat).sendToTarget(); 2596 } 2597 } 2598 2599 private static void log(String s) { 2600 Slog.d(TAG, s); 2601 } 2602 2603 private static void loge(String s) { 2604 Slog.e(TAG, s); 2605 } 2606 2607 int convertFeatureToNetworkType(int networkType, String feature) { 2608 int usedNetworkType = networkType; 2609 2610 if(networkType == ConnectivityManager.TYPE_MOBILE) { 2611 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 2612 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 2613 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 2614 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 2615 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 2616 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 2617 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 2618 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 2619 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 2620 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 2621 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 2622 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 2623 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 2624 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 2625 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 2626 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { 2627 usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; 2628 } else { 2629 Slog.e(TAG, "Can't match any mobile netTracker!"); 2630 } 2631 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 2632 if (TextUtils.equals(feature, "p2p")) { 2633 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 2634 } else { 2635 Slog.e(TAG, "Can't match any wifi netTracker!"); 2636 } 2637 } else { 2638 Slog.e(TAG, "Unexpected network type"); 2639 } 2640 return usedNetworkType; 2641 } 2642 2643 private static <T> T checkNotNull(T value, String message) { 2644 if (value == null) { 2645 throw new NullPointerException(message); 2646 } 2647 return value; 2648 } 2649 2650 /** 2651 * Prepare for a VPN application. This method is used by VpnDialogs 2652 * and not available in ConnectivityManager. Permissions are checked 2653 * in Vpn class. 2654 * @hide 2655 */ 2656 @Override 2657 public boolean prepareVpn(String oldPackage, String newPackage) { 2658 throwIfLockdownEnabled(); 2659 int user = UserHandle.getUserId(Binder.getCallingUid()); 2660 synchronized(mVpns) { 2661 return mVpns.get(user).prepare(oldPackage, newPackage); 2662 } 2663 } 2664 2665 /** 2666 * Configure a TUN interface and return its file descriptor. Parameters 2667 * are encoded and opaque to this class. This method is used by VpnBuilder 2668 * and not available in ConnectivityManager. Permissions are checked in 2669 * Vpn class. 2670 * @hide 2671 */ 2672 @Override 2673 public ParcelFileDescriptor establishVpn(VpnConfig config) { 2674 throwIfLockdownEnabled(); 2675 int user = UserHandle.getUserId(Binder.getCallingUid()); 2676 synchronized(mVpns) { 2677 return mVpns.get(user).establish(config); 2678 } 2679 } 2680 2681 /** 2682 * Start legacy VPN, controlling native daemons as needed. Creates a 2683 * secondary thread to perform connection work, returning quickly. 2684 */ 2685 @Override 2686 public void startLegacyVpn(VpnProfile profile) { 2687 throwIfLockdownEnabled(); 2688 final LinkProperties egress = getActiveLinkProperties(); 2689 if (egress == null) { 2690 throw new IllegalStateException("Missing active network connection"); 2691 } 2692 int user = UserHandle.getUserId(Binder.getCallingUid()); 2693 synchronized(mVpns) { 2694 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 2695 } 2696 } 2697 2698 /** 2699 * Return the information of the ongoing legacy VPN. This method is used 2700 * by VpnSettings and not available in ConnectivityManager. Permissions 2701 * are checked in Vpn class. 2702 * @hide 2703 */ 2704 @Override 2705 public LegacyVpnInfo getLegacyVpnInfo() { 2706 throwIfLockdownEnabled(); 2707 int user = UserHandle.getUserId(Binder.getCallingUid()); 2708 synchronized(mVpns) { 2709 return mVpns.get(user).getLegacyVpnInfo(); 2710 } 2711 } 2712 2713 /** 2714 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 2715 * not available in ConnectivityManager. 2716 * Permissions are checked in Vpn class. 2717 * @hide 2718 */ 2719 @Override 2720 public VpnConfig getVpnConfig() { 2721 int user = UserHandle.getUserId(Binder.getCallingUid()); 2722 synchronized(mVpns) { 2723 return mVpns.get(user).getVpnConfig(); 2724 } 2725 } 2726 2727 @Override 2728 public boolean updateLockdownVpn() { 2729 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 2730 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 2731 return false; 2732 } 2733 2734 // Tear down existing lockdown if profile was removed 2735 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 2736 if (mLockdownEnabled) { 2737 if (!mKeyStore.isUnlocked()) { 2738 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 2739 return false; 2740 } 2741 2742 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 2743 final VpnProfile profile = VpnProfile.decode( 2744 profileName, mKeyStore.get(Credentials.VPN + profileName)); 2745 int user = UserHandle.getUserId(Binder.getCallingUid()); 2746 synchronized(mVpns) { 2747 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 2748 profile)); 2749 } 2750 } else { 2751 setLockdownTracker(null); 2752 } 2753 2754 return true; 2755 } 2756 2757 /** 2758 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 2759 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 2760 */ 2761 private void setLockdownTracker(LockdownVpnTracker tracker) { 2762 // Shutdown any existing tracker 2763 final LockdownVpnTracker existing = mLockdownTracker; 2764 mLockdownTracker = null; 2765 if (existing != null) { 2766 existing.shutdown(); 2767 } 2768 2769 try { 2770 if (tracker != null) { 2771 mNetd.setFirewallEnabled(true); 2772 mNetd.setFirewallInterfaceRule("lo", true); 2773 mLockdownTracker = tracker; 2774 mLockdownTracker.init(); 2775 } else { 2776 mNetd.setFirewallEnabled(false); 2777 } 2778 } catch (RemoteException e) { 2779 // ignored; NMS lives inside system_server 2780 } 2781 } 2782 2783 private void throwIfLockdownEnabled() { 2784 if (mLockdownEnabled) { 2785 throw new IllegalStateException("Unavailable in lockdown mode"); 2786 } 2787 } 2788 2789 public void supplyMessenger(int networkType, Messenger messenger) { 2790 enforceConnectivityInternalPermission(); 2791 2792 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 2793 mNetTrackers[networkType].supplyMessenger(messenger); 2794 } 2795 } 2796 2797 public int findConnectionTypeForIface(String iface) { 2798 enforceConnectivityInternalPermission(); 2799 2800 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 2801 for (NetworkStateTracker tracker : mNetTrackers) { 2802 if (tracker != null) { 2803 LinkProperties lp = tracker.getLinkProperties(); 2804 if (lp != null && iface.equals(lp.getInterfaceName())) { 2805 return tracker.getNetworkInfo().getType(); 2806 } 2807 } 2808 } 2809 return ConnectivityManager.TYPE_NONE; 2810 } 2811 2812 /** 2813 * Have mobile data fail fast if enabled. 2814 * 2815 * @param enabled DctConstants.ENABLED/DISABLED 2816 */ 2817 private void setEnableFailFastMobileData(int enabled) { 2818 int tag; 2819 2820 if (enabled == DctConstants.ENABLED) { 2821 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 2822 } else { 2823 tag = mEnableFailFastMobileDataTag.get(); 2824 } 2825 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 2826 enabled)); 2827 } 2828 2829 private boolean isMobileDataStateTrackerReady() { 2830 MobileDataStateTracker mdst = 2831 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 2832 return (mdst != null) && (mdst.isReady()); 2833 } 2834 2835 /** 2836 * The ResultReceiver resultCode for checkMobileProvisioning (CMP_RESULT_CODE) 2837 */ 2838 2839 /** 2840 * No connection was possible to the network. 2841 * This is NOT a warm sim. 2842 */ 2843 private static final int CMP_RESULT_CODE_NO_CONNECTION = 0; 2844 2845 /** 2846 * A connection was made to the internet, all is well. 2847 * This is NOT a warm sim. 2848 */ 2849 private static final int CMP_RESULT_CODE_CONNECTABLE = 1; 2850 2851 /** 2852 * A connection was made but no dns server was available to resolve a name to address. 2853 * This is NOT a warm sim since provisioning network is supported. 2854 */ 2855 private static final int CMP_RESULT_CODE_NO_DNS = 2; 2856 2857 /** 2858 * A connection was made but could not open a TCP connection. 2859 * This is NOT a warm sim since provisioning network is supported. 2860 */ 2861 private static final int CMP_RESULT_CODE_NO_TCP_CONNECTION = 3; 2862 2863 /** 2864 * A connection was made but there was a redirection, we appear to be in walled garden. 2865 * This is an indication of a warm sim on a mobile network such as T-Mobile. 2866 */ 2867 private static final int CMP_RESULT_CODE_REDIRECTED = 4; 2868 2869 /** 2870 * The mobile network is a provisioning network. 2871 * This is an indication of a warm sim on a mobile network such as AT&T. 2872 */ 2873 private static final int CMP_RESULT_CODE_PROVISIONING_NETWORK = 5; 2874 2875 /** 2876 * The mobile network is provisioning 2877 */ 2878 private static final int CMP_RESULT_CODE_IS_PROVISIONING = 6; 2879 2880 private AtomicBoolean mIsProvisioningNetwork = new AtomicBoolean(false); 2881 private AtomicBoolean mIsStartingProvisioning = new AtomicBoolean(false); 2882 2883 private AtomicBoolean mIsCheckingMobileProvisioning = new AtomicBoolean(false); 2884 2885 @Override 2886 public int checkMobileProvisioning(int suggestedTimeOutMs) { 2887 int timeOutMs = -1; 2888 if (DBG) log("checkMobileProvisioning: E suggestedTimeOutMs=" + suggestedTimeOutMs); 2889 enforceConnectivityInternalPermission(); 2890 2891 final long token = Binder.clearCallingIdentity(); 2892 try { 2893 timeOutMs = suggestedTimeOutMs; 2894 if (suggestedTimeOutMs > CheckMp.MAX_TIMEOUT_MS) { 2895 timeOutMs = CheckMp.MAX_TIMEOUT_MS; 2896 } 2897 2898 // Check that mobile networks are supported 2899 if (!isNetworkSupported(ConnectivityManager.TYPE_MOBILE) 2900 || !isNetworkSupported(ConnectivityManager.TYPE_MOBILE_HIPRI)) { 2901 if (DBG) log("checkMobileProvisioning: X no mobile network"); 2902 return timeOutMs; 2903 } 2904 2905 // If we're already checking don't do it again 2906 // TODO: Add a queue of results... 2907 if (mIsCheckingMobileProvisioning.getAndSet(true)) { 2908 if (DBG) log("checkMobileProvisioning: X already checking ignore for the moment"); 2909 return timeOutMs; 2910 } 2911 2912 // Start off with mobile notification off 2913 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 2914 2915 CheckMp checkMp = new CheckMp(mContext, this); 2916 CheckMp.CallBack cb = new CheckMp.CallBack() { 2917 @Override 2918 void onComplete(Integer result) { 2919 if (DBG) log("CheckMp.onComplete: result=" + result); 2920 NetworkInfo ni = 2921 mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI].getNetworkInfo(); 2922 switch(result) { 2923 case CMP_RESULT_CODE_CONNECTABLE: 2924 case CMP_RESULT_CODE_NO_CONNECTION: 2925 case CMP_RESULT_CODE_NO_DNS: 2926 case CMP_RESULT_CODE_NO_TCP_CONNECTION: { 2927 if (DBG) log("CheckMp.onComplete: ignore, connected or no connection"); 2928 break; 2929 } 2930 case CMP_RESULT_CODE_REDIRECTED: { 2931 if (DBG) log("CheckMp.onComplete: warm sim"); 2932 String url = getMobileProvisioningUrl(); 2933 if (TextUtils.isEmpty(url)) { 2934 url = getMobileRedirectedProvisioningUrl(); 2935 } 2936 if (TextUtils.isEmpty(url) == false) { 2937 if (DBG) log("CheckMp.onComplete: warm (redirected), url=" + url); 2938 setProvNotificationVisible(true, 2939 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 2940 url); 2941 } else { 2942 if (DBG) log("CheckMp.onComplete: warm (redirected), no url"); 2943 } 2944 break; 2945 } 2946 case CMP_RESULT_CODE_PROVISIONING_NETWORK: { 2947 String url = getMobileProvisioningUrl(); 2948 if (TextUtils.isEmpty(url) == false) { 2949 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), url=" + url); 2950 setProvNotificationVisible(true, 2951 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 2952 url); 2953 // Mark that we've got a provisioning network and 2954 // Disable Mobile Data until user actually starts provisioning. 2955 mIsProvisioningNetwork.set(true); 2956 MobileDataStateTracker mdst = (MobileDataStateTracker) 2957 mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2958 2959 // Disable radio until user starts provisioning 2960 mdst.setRadio(false); 2961 } else { 2962 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), no url"); 2963 } 2964 break; 2965 } 2966 case CMP_RESULT_CODE_IS_PROVISIONING: { 2967 // FIXME: Need to know when provisioning is done. Probably we can 2968 // check the completion status if successful we're done if we 2969 // "timedout" or still connected to provisioning APN turn off data? 2970 if (DBG) log("CheckMp.onComplete: provisioning started"); 2971 mIsStartingProvisioning.set(false); 2972 break; 2973 } 2974 default: { 2975 loge("CheckMp.onComplete: ignore unexpected result=" + result); 2976 break; 2977 } 2978 } 2979 mIsCheckingMobileProvisioning.set(false); 2980 } 2981 }; 2982 CheckMp.Params params = 2983 new CheckMp.Params(checkMp.getDefaultUrl(), timeOutMs, cb); 2984 if (DBG) log("checkMobileProvisioning: params=" + params); 2985 // TODO: Reenable when calls to the now defunct 2986 // MobileDataStateTracker.isProvisioningNetwork() are removed. 2987 // This code should be moved to the Telephony code. 2988 // checkMp.execute(params); 2989 } finally { 2990 Binder.restoreCallingIdentity(token); 2991 if (DBG) log("checkMobileProvisioning: X"); 2992 } 2993 return timeOutMs; 2994 } 2995 2996 static class CheckMp extends 2997 AsyncTask<CheckMp.Params, Void, Integer> { 2998 private static final String CHECKMP_TAG = "CheckMp"; 2999 3000 // adb shell setprop persist.checkmp.testfailures 1 to enable testing failures 3001 private static boolean mTestingFailures; 3002 3003 // Choosing 4 loops as half of them will use HTTPS and the other half HTTP 3004 private static final int MAX_LOOPS = 4; 3005 3006 // Number of milli-seconds to complete all of the retires 3007 public static final int MAX_TIMEOUT_MS = 60000; 3008 3009 // The socket should retry only 5 seconds, the default is longer 3010 private static final int SOCKET_TIMEOUT_MS = 5000; 3011 3012 // Sleep time for network errors 3013 private static final int NET_ERROR_SLEEP_SEC = 3; 3014 3015 // Sleep time for network route establishment 3016 private static final int NET_ROUTE_ESTABLISHMENT_SLEEP_SEC = 3; 3017 3018 // Short sleep time for polling :( 3019 private static final int POLLING_SLEEP_SEC = 1; 3020 3021 private Context mContext; 3022 private ConnectivityService mCs; 3023 private TelephonyManager mTm; 3024 private Params mParams; 3025 3026 /** 3027 * Parameters for AsyncTask.execute 3028 */ 3029 static class Params { 3030 private String mUrl; 3031 private long mTimeOutMs; 3032 private CallBack mCb; 3033 3034 Params(String url, long timeOutMs, CallBack cb) { 3035 mUrl = url; 3036 mTimeOutMs = timeOutMs; 3037 mCb = cb; 3038 } 3039 3040 @Override 3041 public String toString() { 3042 return "{" + " url=" + mUrl + " mTimeOutMs=" + mTimeOutMs + " mCb=" + mCb + "}"; 3043 } 3044 } 3045 3046 // As explained to me by Brian Carlstrom and Kenny Root, Certificates can be 3047 // issued by name or ip address, for Google its by name so when we construct 3048 // this HostnameVerifier we'll pass the original Uri and use it to verify 3049 // the host. If the host name in the original uril fails we'll test the 3050 // hostname parameter just incase things change. 3051 static class CheckMpHostnameVerifier implements HostnameVerifier { 3052 Uri mOrgUri; 3053 3054 CheckMpHostnameVerifier(Uri orgUri) { 3055 mOrgUri = orgUri; 3056 } 3057 3058 @Override 3059 public boolean verify(String hostname, SSLSession session) { 3060 HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier(); 3061 String orgUriHost = mOrgUri.getHost(); 3062 boolean retVal = hv.verify(orgUriHost, session) || hv.verify(hostname, session); 3063 if (DBG) { 3064 log("isMobileOk: hostnameVerify retVal=" + retVal + " hostname=" + hostname 3065 + " orgUriHost=" + orgUriHost); 3066 } 3067 return retVal; 3068 } 3069 } 3070 3071 /** 3072 * The call back object passed in Params. onComplete will be called 3073 * on the main thread. 3074 */ 3075 abstract static class CallBack { 3076 // Called on the main thread. 3077 abstract void onComplete(Integer result); 3078 } 3079 3080 public CheckMp(Context context, ConnectivityService cs) { 3081 if (Build.IS_DEBUGGABLE) { 3082 mTestingFailures = 3083 SystemProperties.getInt("persist.checkmp.testfailures", 0) == 1; 3084 } else { 3085 mTestingFailures = false; 3086 } 3087 3088 mContext = context; 3089 mCs = cs; 3090 3091 // Setup access to TelephonyService we'll be using. 3092 mTm = (TelephonyManager) mContext.getSystemService( 3093 Context.TELEPHONY_SERVICE); 3094 } 3095 3096 /** 3097 * Get the default url to use for the test. 3098 */ 3099 public String getDefaultUrl() { 3100 // See http://go/clientsdns for usage approval 3101 String server = Settings.Global.getString(mContext.getContentResolver(), 3102 Settings.Global.CAPTIVE_PORTAL_SERVER); 3103 if (server == null) { 3104 server = "clients3.google.com"; 3105 } 3106 return "http://" + server + "/generate_204"; 3107 } 3108 3109 /** 3110 * Detect if its possible to connect to the http url. DNS based detection techniques 3111 * do not work at all hotspots. The best way to check is to perform a request to 3112 * a known address that fetches the data we expect. 3113 */ 3114 private synchronized Integer isMobileOk(Params params) { 3115 Integer result = CMP_RESULT_CODE_NO_CONNECTION; 3116 Uri orgUri = Uri.parse(params.mUrl); 3117 Random rand = new Random(); 3118 mParams = params; 3119 3120 if (mCs.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false) { 3121 result = CMP_RESULT_CODE_NO_CONNECTION; 3122 log("isMobileOk: X not mobile capable result=" + result); 3123 return result; 3124 } 3125 3126 if (mCs.mIsStartingProvisioning.get()) { 3127 result = CMP_RESULT_CODE_IS_PROVISIONING; 3128 log("isMobileOk: X is provisioning result=" + result); 3129 return result; 3130 } 3131 3132 // See if we've already determined we've got a provisioning connection, 3133 // if so we don't need to do anything active. 3134 MobileDataStateTracker mdstDefault = (MobileDataStateTracker) 3135 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3136 boolean isDefaultProvisioning = mdstDefault.isProvisioningNetwork(); 3137 log("isMobileOk: isDefaultProvisioning=" + isDefaultProvisioning); 3138 3139 MobileDataStateTracker mdstHipri = (MobileDataStateTracker) 3140 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3141 boolean isHipriProvisioning = mdstHipri.isProvisioningNetwork(); 3142 log("isMobileOk: isHipriProvisioning=" + isHipriProvisioning); 3143 3144 if (isDefaultProvisioning || isHipriProvisioning) { 3145 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3146 log("isMobileOk: X default || hipri is provisioning result=" + result); 3147 return result; 3148 } 3149 3150 try { 3151 // Continue trying to connect until time has run out 3152 long endTime = SystemClock.elapsedRealtime() + params.mTimeOutMs; 3153 3154 if (!mCs.isMobileDataStateTrackerReady()) { 3155 // Wait for MobileDataStateTracker to be ready. 3156 if (DBG) log("isMobileOk: mdst is not ready"); 3157 while(SystemClock.elapsedRealtime() < endTime) { 3158 if (mCs.isMobileDataStateTrackerReady()) { 3159 // Enable fail fast as we'll do retries here and use a 3160 // hipri connection so the default connection stays active. 3161 if (DBG) log("isMobileOk: mdst ready, enable fail fast of mobile data"); 3162 mCs.setEnableFailFastMobileData(DctConstants.ENABLED); 3163 break; 3164 } 3165 sleep(POLLING_SLEEP_SEC); 3166 } 3167 } 3168 3169 log("isMobileOk: start hipri url=" + params.mUrl); 3170 3171 // First wait until we can start using hipri 3172 Binder binder = new Binder(); 3173/* 3174 while(SystemClock.elapsedRealtime() < endTime) { 3175 int ret = mCs.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3176 Phone.FEATURE_ENABLE_HIPRI, binder); 3177 if ((ret == PhoneConstants.APN_ALREADY_ACTIVE) 3178 || (ret == PhoneConstants.APN_REQUEST_STARTED)) { 3179 log("isMobileOk: hipri started"); 3180 break; 3181 } 3182 if (VDBG) log("isMobileOk: hipri not started yet"); 3183 result = CMP_RESULT_CODE_NO_CONNECTION; 3184 sleep(POLLING_SLEEP_SEC); 3185 } 3186*/ 3187 // Continue trying to connect until time has run out 3188 while(SystemClock.elapsedRealtime() < endTime) { 3189 try { 3190 // Wait for hipri to connect. 3191 // TODO: Don't poll and handle situation where hipri fails 3192 // because default is retrying. See b/9569540 3193 NetworkInfo.State state = mCs 3194 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3195 if (state != NetworkInfo.State.CONNECTED) { 3196 if (true/*VDBG*/) { 3197 log("isMobileOk: not connected ni=" + 3198 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3199 } 3200 sleep(POLLING_SLEEP_SEC); 3201 result = CMP_RESULT_CODE_NO_CONNECTION; 3202 continue; 3203 } 3204 3205 // Hipri has started check if this is a provisioning url 3206 MobileDataStateTracker mdst = (MobileDataStateTracker) 3207 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3208 if (mdst.isProvisioningNetwork()) { 3209 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3210 if (DBG) log("isMobileOk: X isProvisioningNetwork result=" + result); 3211 return result; 3212 } else { 3213 if (DBG) log("isMobileOk: isProvisioningNetwork is false, continue"); 3214 } 3215 3216 // Get of the addresses associated with the url host. We need to use the 3217 // address otherwise HttpURLConnection object will use the name to get 3218 // the addresses and will try every address but that will bypass the 3219 // route to host we setup and the connection could succeed as the default 3220 // interface might be connected to the internet via wifi or other interface. 3221 InetAddress[] addresses; 3222 try { 3223 addresses = InetAddress.getAllByName(orgUri.getHost()); 3224 } catch (UnknownHostException e) { 3225 result = CMP_RESULT_CODE_NO_DNS; 3226 log("isMobileOk: X UnknownHostException result=" + result); 3227 return result; 3228 } 3229 log("isMobileOk: addresses=" + inetAddressesToString(addresses)); 3230 3231 // Get the type of addresses supported by this link 3232 LinkProperties lp = mCs.getLinkPropertiesForTypeInternal( 3233 ConnectivityManager.TYPE_MOBILE_HIPRI); 3234 boolean linkHasIpv4 = lp.hasIPv4Address(); 3235 boolean linkHasIpv6 = lp.hasGlobalIPv6Address(); 3236 log("isMobileOk: linkHasIpv4=" + linkHasIpv4 3237 + " linkHasIpv6=" + linkHasIpv6); 3238 3239 final ArrayList<InetAddress> validAddresses = 3240 new ArrayList<InetAddress>(addresses.length); 3241 3242 for (InetAddress addr : addresses) { 3243 if (((addr instanceof Inet4Address) && linkHasIpv4) || 3244 ((addr instanceof Inet6Address) && linkHasIpv6)) { 3245 validAddresses.add(addr); 3246 } 3247 } 3248 3249 if (validAddresses.size() == 0) { 3250 return CMP_RESULT_CODE_NO_CONNECTION; 3251 } 3252 3253 int addrTried = 0; 3254 while (true) { 3255 // Loop through at most MAX_LOOPS valid addresses or until 3256 // we run out of time 3257 if (addrTried++ >= MAX_LOOPS) { 3258 log("isMobileOk: too many loops tried - giving up"); 3259 break; 3260 } 3261 if (SystemClock.elapsedRealtime() >= endTime) { 3262 log("isMobileOk: spend too much time - giving up"); 3263 break; 3264 } 3265 3266 InetAddress hostAddr = validAddresses.get(rand.nextInt( 3267 validAddresses.size())); 3268 3269 // Make a route to host so we check the specific interface. 3270 if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI, 3271 hostAddr.getAddress())) { 3272 // Wait a short time to be sure the route is established ?? 3273 log("isMobileOk:" 3274 + " wait to establish route to hostAddr=" + hostAddr); 3275 sleep(NET_ROUTE_ESTABLISHMENT_SLEEP_SEC); 3276 } else { 3277 log("isMobileOk:" 3278 + " could not establish route to hostAddr=" + hostAddr); 3279 // Wait a short time before the next attempt 3280 sleep(NET_ERROR_SLEEP_SEC); 3281 continue; 3282 } 3283 3284 // Rewrite the url to have numeric address to use the specific route 3285 // using http for half the attempts and https for the other half. 3286 // Doing https first and http second as on a redirected walled garden 3287 // such as t-mobile uses we get a SocketTimeoutException: "SSL 3288 // handshake timed out" which we declare as 3289 // CMP_RESULT_CODE_NO_TCP_CONNECTION. We could change this, but by 3290 // having http second we will be using logic used for some time. 3291 URL newUrl; 3292 String scheme = (addrTried <= (MAX_LOOPS/2)) ? "https" : "http"; 3293 newUrl = new URL(scheme, hostAddr.getHostAddress(), 3294 orgUri.getPath()); 3295 log("isMobileOk: newUrl=" + newUrl); 3296 3297 HttpURLConnection urlConn = null; 3298 try { 3299 // Open the connection set the request headers and get the response 3300 urlConn = (HttpURLConnection)newUrl.openConnection( 3301 java.net.Proxy.NO_PROXY); 3302 if (scheme.equals("https")) { 3303 ((HttpsURLConnection)urlConn).setHostnameVerifier( 3304 new CheckMpHostnameVerifier(orgUri)); 3305 } 3306 urlConn.setInstanceFollowRedirects(false); 3307 urlConn.setConnectTimeout(SOCKET_TIMEOUT_MS); 3308 urlConn.setReadTimeout(SOCKET_TIMEOUT_MS); 3309 urlConn.setUseCaches(false); 3310 urlConn.setAllowUserInteraction(false); 3311 // Set the "Connection" to "Close" as by default "Keep-Alive" 3312 // is used which is useless in this case. 3313 urlConn.setRequestProperty("Connection", "close"); 3314 int responseCode = urlConn.getResponseCode(); 3315 3316 // For debug display the headers 3317 Map<String, List<String>> headers = urlConn.getHeaderFields(); 3318 log("isMobileOk: headers=" + headers); 3319 3320 // Close the connection 3321 urlConn.disconnect(); 3322 urlConn = null; 3323 3324 if (mTestingFailures) { 3325 // Pretend no connection, this tests using http and https 3326 result = CMP_RESULT_CODE_NO_CONNECTION; 3327 log("isMobileOk: TESTING_FAILURES, pretend no connction"); 3328 continue; 3329 } 3330 3331 if (responseCode == 204) { 3332 // Return 3333 result = CMP_RESULT_CODE_CONNECTABLE; 3334 log("isMobileOk: X got expected responseCode=" + responseCode 3335 + " result=" + result); 3336 return result; 3337 } else { 3338 // Retry to be sure this was redirected, we've gotten 3339 // occasions where a server returned 200 even though 3340 // the device didn't have a "warm" sim. 3341 log("isMobileOk: not expected responseCode=" + responseCode); 3342 // TODO - it would be nice in the single-address case to do 3343 // another DNS resolve here, but flushing the cache is a bit 3344 // heavy-handed. 3345 result = CMP_RESULT_CODE_REDIRECTED; 3346 } 3347 } catch (Exception e) { 3348 log("isMobileOk: HttpURLConnection Exception" + e); 3349 result = CMP_RESULT_CODE_NO_TCP_CONNECTION; 3350 if (urlConn != null) { 3351 urlConn.disconnect(); 3352 urlConn = null; 3353 } 3354 sleep(NET_ERROR_SLEEP_SEC); 3355 continue; 3356 } 3357 } 3358 log("isMobileOk: X loops|timed out result=" + result); 3359 return result; 3360 } catch (Exception e) { 3361 log("isMobileOk: Exception e=" + e); 3362 continue; 3363 } 3364 } 3365 log("isMobileOk: timed out"); 3366 } finally { 3367 log("isMobileOk: F stop hipri"); 3368 mCs.setEnableFailFastMobileData(DctConstants.DISABLED); 3369// mCs.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3370// Phone.FEATURE_ENABLE_HIPRI); 3371 3372 // Wait for hipri to disconnect. 3373 long endTime = SystemClock.elapsedRealtime() + 5000; 3374 3375 while(SystemClock.elapsedRealtime() < endTime) { 3376 NetworkInfo.State state = mCs 3377 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3378 if (state != NetworkInfo.State.DISCONNECTED) { 3379 if (VDBG) { 3380 log("isMobileOk: connected ni=" + 3381 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3382 } 3383 sleep(POLLING_SLEEP_SEC); 3384 continue; 3385 } 3386 } 3387 3388 log("isMobileOk: X result=" + result); 3389 } 3390 return result; 3391 } 3392 3393 @Override 3394 protected Integer doInBackground(Params... params) { 3395 return isMobileOk(params[0]); 3396 } 3397 3398 @Override 3399 protected void onPostExecute(Integer result) { 3400 log("onPostExecute: result=" + result); 3401 if ((mParams != null) && (mParams.mCb != null)) { 3402 mParams.mCb.onComplete(result); 3403 } 3404 } 3405 3406 private String inetAddressesToString(InetAddress[] addresses) { 3407 StringBuffer sb = new StringBuffer(); 3408 boolean firstTime = true; 3409 for(InetAddress addr : addresses) { 3410 if (firstTime) { 3411 firstTime = false; 3412 } else { 3413 sb.append(","); 3414 } 3415 sb.append(addr); 3416 } 3417 return sb.toString(); 3418 } 3419 3420 private void printNetworkInfo() { 3421 boolean hasIccCard = mTm.hasIccCard(); 3422 int simState = mTm.getSimState(); 3423 log("hasIccCard=" + hasIccCard 3424 + " simState=" + simState); 3425 NetworkInfo[] ni = mCs.getAllNetworkInfo(); 3426 if (ni != null) { 3427 log("ni.length=" + ni.length); 3428 for (NetworkInfo netInfo: ni) { 3429 log("netInfo=" + netInfo.toString()); 3430 } 3431 } else { 3432 log("no network info ni=null"); 3433 } 3434 } 3435 3436 /** 3437 * Sleep for a few seconds then return. 3438 * @param seconds 3439 */ 3440 private static void sleep(int seconds) { 3441 long stopTime = System.nanoTime() + (seconds * 1000000000); 3442 long sleepTime; 3443 while ((sleepTime = stopTime - System.nanoTime()) > 0) { 3444 try { 3445 Thread.sleep(sleepTime / 1000000); 3446 } catch (InterruptedException ignored) { 3447 } 3448 } 3449 } 3450 3451 private static void log(String s) { 3452 Slog.d(ConnectivityService.TAG, "[" + CHECKMP_TAG + "] " + s); 3453 } 3454 } 3455 3456 // TODO: Move to ConnectivityManager and make public? 3457 private static final String CONNECTED_TO_PROVISIONING_NETWORK_ACTION = 3458 "com.android.server.connectivityservice.CONNECTED_TO_PROVISIONING_NETWORK_ACTION"; 3459 3460 private BroadcastReceiver mProvisioningReceiver = new BroadcastReceiver() { 3461 @Override 3462 public void onReceive(Context context, Intent intent) { 3463 if (intent.getAction().equals(CONNECTED_TO_PROVISIONING_NETWORK_ACTION)) { 3464 handleMobileProvisioningAction(intent.getStringExtra("EXTRA_URL")); 3465 } 3466 } 3467 }; 3468 3469 private void handleMobileProvisioningAction(String url) { 3470 // Mark notification as not visible 3471 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3472 3473 // Check airplane mode 3474 boolean isAirplaneModeOn = Settings.System.getInt(mContext.getContentResolver(), 3475 Settings.Global.AIRPLANE_MODE_ON, 0) == 1; 3476 // If provisioning network and not in airplane mode handle as a special case, 3477 // otherwise launch browser with the intent directly. 3478 if (mIsProvisioningNetwork.get() && !isAirplaneModeOn) { 3479 if (DBG) log("handleMobileProvisioningAction: on prov network enable then launch"); 3480 mIsProvisioningNetwork.set(false); 3481// mIsStartingProvisioning.set(true); 3482// MobileDataStateTracker mdst = (MobileDataStateTracker) 3483// mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3484 // Radio was disabled on CMP_RESULT_CODE_PROVISIONING_NETWORK, enable it here 3485// mdst.setRadio(true); 3486// mdst.setEnableFailFastMobileData(DctConstants.ENABLED); 3487// mdst.enableMobileProvisioning(url); 3488 } else { 3489 if (DBG) log("handleMobileProvisioningAction: not prov network"); 3490 mIsProvisioningNetwork.set(false); 3491 // Check for apps that can handle provisioning first 3492 Intent provisioningIntent = new Intent(TelephonyIntents.ACTION_CARRIER_SETUP); 3493 provisioningIntent.addCategory(TelephonyIntents.CATEGORY_MCCMNC_PREFIX 3494 + mTelephonyManager.getSimOperator()); 3495 if (mContext.getPackageManager().resolveActivity(provisioningIntent, 0 /* flags */) 3496 != null) { 3497 provisioningIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3498 Intent.FLAG_ACTIVITY_NEW_TASK); 3499 mContext.startActivity(provisioningIntent); 3500 } else { 3501 // If no apps exist, use standard URL ACTION_VIEW method 3502 Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, 3503 Intent.CATEGORY_APP_BROWSER); 3504 newIntent.setData(Uri.parse(url)); 3505 newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3506 Intent.FLAG_ACTIVITY_NEW_TASK); 3507 try { 3508 mContext.startActivity(newIntent); 3509 } catch (ActivityNotFoundException e) { 3510 loge("handleMobileProvisioningAction: startActivity failed" + e); 3511 } 3512 } 3513 } 3514 } 3515 3516 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 3517 private volatile boolean mIsNotificationVisible = false; 3518 3519 private void setProvNotificationVisible(boolean visible, int networkType, String extraInfo, 3520 String url) { 3521 if (DBG) { 3522 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 3523 + " extraInfo=" + extraInfo + " url=" + url); 3524 } 3525 Intent intent = null; 3526 PendingIntent pendingIntent = null; 3527 if (visible) { 3528 switch (networkType) { 3529 case ConnectivityManager.TYPE_WIFI: 3530 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3531 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3532 Intent.FLAG_ACTIVITY_NEW_TASK); 3533 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3534 break; 3535 case ConnectivityManager.TYPE_MOBILE: 3536 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3537 intent = new Intent(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 3538 intent.putExtra("EXTRA_URL", url); 3539 intent.setFlags(0); 3540 pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 3541 break; 3542 default: 3543 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3544 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3545 Intent.FLAG_ACTIVITY_NEW_TASK); 3546 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3547 break; 3548 } 3549 } 3550 // Concatenate the range of types onto the range of NetIDs. 3551 int id = MAX_NET_ID + 1 + (networkType - ConnectivityManager.TYPE_NONE); 3552 setProvNotificationVisibleIntent(visible, id, networkType, extraInfo, pendingIntent); 3553 } 3554 3555 /** 3556 * Show or hide network provisioning notificaitons. 3557 * 3558 * @param id an identifier that uniquely identifies this notification. This must match 3559 * between show and hide calls. We use the NetID value but for legacy callers 3560 * we concatenate the range of types with the range of NetIDs. 3561 */ 3562 private void setProvNotificationVisibleIntent(boolean visible, int id, int networkType, 3563 String extraInfo, PendingIntent intent) { 3564 if (DBG) { 3565 log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + 3566 networkType + " extraInfo=" + extraInfo); 3567 } 3568 3569 Resources r = Resources.getSystem(); 3570 NotificationManager notificationManager = (NotificationManager) mContext 3571 .getSystemService(Context.NOTIFICATION_SERVICE); 3572 3573 if (visible) { 3574 CharSequence title; 3575 CharSequence details; 3576 int icon; 3577 Notification notification = new Notification(); 3578 switch (networkType) { 3579 case ConnectivityManager.TYPE_WIFI: 3580 title = r.getString(R.string.wifi_available_sign_in, 0); 3581 details = r.getString(R.string.network_available_sign_in_detailed, 3582 extraInfo); 3583 icon = R.drawable.stat_notify_wifi_in_range; 3584 break; 3585 case ConnectivityManager.TYPE_MOBILE: 3586 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3587 title = r.getString(R.string.network_available_sign_in, 0); 3588 // TODO: Change this to pull from NetworkInfo once a printable 3589 // name has been added to it 3590 details = mTelephonyManager.getNetworkOperatorName(); 3591 icon = R.drawable.stat_notify_rssi_in_range; 3592 break; 3593 default: 3594 title = r.getString(R.string.network_available_sign_in, 0); 3595 details = r.getString(R.string.network_available_sign_in_detailed, 3596 extraInfo); 3597 icon = R.drawable.stat_notify_rssi_in_range; 3598 break; 3599 } 3600 3601 notification.when = 0; 3602 notification.icon = icon; 3603 notification.flags = Notification.FLAG_AUTO_CANCEL; 3604 notification.tickerText = title; 3605 notification.color = mContext.getResources().getColor( 3606 com.android.internal.R.color.system_notification_accent_color); 3607 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 3608 notification.contentIntent = intent; 3609 3610 try { 3611 notificationManager.notify(NOTIFICATION_ID, id, notification); 3612 } catch (NullPointerException npe) { 3613 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 3614 npe.printStackTrace(); 3615 } 3616 } else { 3617 try { 3618 notificationManager.cancel(NOTIFICATION_ID, id); 3619 } catch (NullPointerException npe) { 3620 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 3621 npe.printStackTrace(); 3622 } 3623 } 3624 mIsNotificationVisible = visible; 3625 } 3626 3627 /** Location to an updatable file listing carrier provisioning urls. 3628 * An example: 3629 * 3630 * <?xml version="1.0" encoding="utf-8"?> 3631 * <provisioningUrls> 3632 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 3633 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 3634 * </provisioningUrls> 3635 */ 3636 private static final String PROVISIONING_URL_PATH = 3637 "/data/misc/radio/provisioning_urls.xml"; 3638 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 3639 3640 /** XML tag for root element. */ 3641 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 3642 /** XML tag for individual url */ 3643 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 3644 /** XML tag for redirected url */ 3645 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 3646 /** XML attribute for mcc */ 3647 private static final String ATTR_MCC = "mcc"; 3648 /** XML attribute for mnc */ 3649 private static final String ATTR_MNC = "mnc"; 3650 3651 private static final int REDIRECTED_PROVISIONING = 1; 3652 private static final int PROVISIONING = 2; 3653 3654 private String getProvisioningUrlBaseFromFile(int type) { 3655 FileReader fileReader = null; 3656 XmlPullParser parser = null; 3657 Configuration config = mContext.getResources().getConfiguration(); 3658 String tagType; 3659 3660 switch (type) { 3661 case PROVISIONING: 3662 tagType = TAG_PROVISIONING_URL; 3663 break; 3664 case REDIRECTED_PROVISIONING: 3665 tagType = TAG_REDIRECTED_URL; 3666 break; 3667 default: 3668 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 3669 type); 3670 } 3671 3672 try { 3673 fileReader = new FileReader(mProvisioningUrlFile); 3674 parser = Xml.newPullParser(); 3675 parser.setInput(fileReader); 3676 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 3677 3678 while (true) { 3679 XmlUtils.nextElement(parser); 3680 3681 String element = parser.getName(); 3682 if (element == null) break; 3683 3684 if (element.equals(tagType)) { 3685 String mcc = parser.getAttributeValue(null, ATTR_MCC); 3686 try { 3687 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 3688 String mnc = parser.getAttributeValue(null, ATTR_MNC); 3689 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 3690 parser.next(); 3691 if (parser.getEventType() == XmlPullParser.TEXT) { 3692 return parser.getText(); 3693 } 3694 } 3695 } 3696 } catch (NumberFormatException e) { 3697 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 3698 } 3699 } 3700 } 3701 return null; 3702 } catch (FileNotFoundException e) { 3703 loge("Carrier Provisioning Urls file not found"); 3704 } catch (XmlPullParserException e) { 3705 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 3706 } catch (IOException e) { 3707 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 3708 } finally { 3709 if (fileReader != null) { 3710 try { 3711 fileReader.close(); 3712 } catch (IOException e) {} 3713 } 3714 } 3715 return null; 3716 } 3717 3718 @Override 3719 public String getMobileRedirectedProvisioningUrl() { 3720 enforceConnectivityInternalPermission(); 3721 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 3722 if (TextUtils.isEmpty(url)) { 3723 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 3724 } 3725 return url; 3726 } 3727 3728 @Override 3729 public String getMobileProvisioningUrl() { 3730 enforceConnectivityInternalPermission(); 3731 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 3732 if (TextUtils.isEmpty(url)) { 3733 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 3734 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 3735 } else { 3736 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 3737 } 3738 // populate the iccid, imei and phone number in the provisioning url. 3739 if (!TextUtils.isEmpty(url)) { 3740 String phoneNumber = mTelephonyManager.getLine1Number(); 3741 if (TextUtils.isEmpty(phoneNumber)) { 3742 phoneNumber = "0000000000"; 3743 } 3744 url = String.format(url, 3745 mTelephonyManager.getSimSerialNumber() /* ICCID */, 3746 mTelephonyManager.getDeviceId() /* IMEI */, 3747 phoneNumber /* Phone numer */); 3748 } 3749 3750 return url; 3751 } 3752 3753 @Override 3754 public void setProvisioningNotificationVisible(boolean visible, int networkType, 3755 String extraInfo, String url) { 3756 enforceConnectivityInternalPermission(); 3757 setProvNotificationVisible(visible, networkType, extraInfo, url); 3758 } 3759 3760 @Override 3761 public void setAirplaneMode(boolean enable) { 3762 enforceConnectivityInternalPermission(); 3763 final long ident = Binder.clearCallingIdentity(); 3764 try { 3765 final ContentResolver cr = mContext.getContentResolver(); 3766 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 3767 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 3768 intent.putExtra("state", enable); 3769 mContext.sendBroadcast(intent); 3770 } finally { 3771 Binder.restoreCallingIdentity(ident); 3772 } 3773 } 3774 3775 private void onUserStart(int userId) { 3776 synchronized(mVpns) { 3777 Vpn userVpn = mVpns.get(userId); 3778 if (userVpn != null) { 3779 loge("Starting user already has a VPN"); 3780 return; 3781 } 3782 userVpn = new Vpn(mHandler.getLooper(), mContext, mNetd, this, userId); 3783 mVpns.put(userId, userVpn); 3784 } 3785 } 3786 3787 private void onUserStop(int userId) { 3788 synchronized(mVpns) { 3789 Vpn userVpn = mVpns.get(userId); 3790 if (userVpn == null) { 3791 loge("Stopping user has no VPN"); 3792 return; 3793 } 3794 mVpns.delete(userId); 3795 } 3796 } 3797 3798 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 3799 @Override 3800 public void onReceive(Context context, Intent intent) { 3801 final String action = intent.getAction(); 3802 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3803 if (userId == UserHandle.USER_NULL) return; 3804 3805 if (Intent.ACTION_USER_STARTING.equals(action)) { 3806 onUserStart(userId); 3807 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 3808 onUserStop(userId); 3809 } 3810 } 3811 }; 3812 3813 @Override 3814 public LinkQualityInfo getLinkQualityInfo(int networkType) { 3815 enforceAccessPermission(); 3816 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 3817 return mNetTrackers[networkType].getLinkQualityInfo(); 3818 } else { 3819 return null; 3820 } 3821 } 3822 3823 @Override 3824 public LinkQualityInfo getActiveLinkQualityInfo() { 3825 enforceAccessPermission(); 3826 if (isNetworkTypeValid(mActiveDefaultNetwork) && 3827 mNetTrackers[mActiveDefaultNetwork] != null) { 3828 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 3829 } else { 3830 return null; 3831 } 3832 } 3833 3834 @Override 3835 public LinkQualityInfo[] getAllLinkQualityInfo() { 3836 enforceAccessPermission(); 3837 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 3838 for (NetworkStateTracker tracker : mNetTrackers) { 3839 if (tracker != null) { 3840 LinkQualityInfo li = tracker.getLinkQualityInfo(); 3841 if (li != null) { 3842 result.add(li); 3843 } 3844 } 3845 } 3846 3847 return result.toArray(new LinkQualityInfo[result.size()]); 3848 } 3849 3850 /* Infrastructure for network sampling */ 3851 3852 private void handleNetworkSamplingTimeout() { 3853 3854 log("Sampling interval elapsed, updating statistics .."); 3855 3856 // initialize list of interfaces .. 3857 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 3858 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 3859 for (NetworkStateTracker tracker : mNetTrackers) { 3860 if (tracker != null) { 3861 String ifaceName = tracker.getNetworkInterfaceName(); 3862 if (ifaceName != null) { 3863 mapIfaceToSample.put(ifaceName, null); 3864 } 3865 } 3866 } 3867 3868 // Read samples for all interfaces 3869 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 3870 3871 // process samples for all networks 3872 for (NetworkStateTracker tracker : mNetTrackers) { 3873 if (tracker != null) { 3874 String ifaceName = tracker.getNetworkInterfaceName(); 3875 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 3876 if (ss != null) { 3877 // end the previous sampling cycle 3878 tracker.stopSampling(ss); 3879 // start a new sampling cycle .. 3880 tracker.startSampling(ss); 3881 } 3882 } 3883 } 3884 3885 log("Done."); 3886 3887 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 3888 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 3889 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 3890 3891 if (DBG) log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 3892 3893 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 3894 } 3895 3896 /** 3897 * Sets a network sampling alarm. 3898 */ 3899 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 3900 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 3901 int alarmType; 3902 if (Resources.getSystem().getBoolean( 3903 R.bool.config_networkSamplingWakesDevice)) { 3904 alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP; 3905 } else { 3906 alarmType = AlarmManager.ELAPSED_REALTIME; 3907 } 3908 mAlarmManager.set(alarmType, wakeupTime, intent); 3909 } 3910 3911 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 3912 new HashMap<Messenger, NetworkFactoryInfo>(); 3913 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 3914 new HashMap<NetworkRequest, NetworkRequestInfo>(); 3915 3916 private static class NetworkFactoryInfo { 3917 public final String name; 3918 public final Messenger messenger; 3919 public final AsyncChannel asyncChannel; 3920 3921 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 3922 this.name = name; 3923 this.messenger = messenger; 3924 this.asyncChannel = asyncChannel; 3925 } 3926 } 3927 3928 /** 3929 * Tracks info about the requester. 3930 * Also used to notice when the calling process dies so we can self-expire 3931 */ 3932 private class NetworkRequestInfo implements IBinder.DeathRecipient { 3933 static final boolean REQUEST = true; 3934 static final boolean LISTEN = false; 3935 3936 final NetworkRequest request; 3937 IBinder mBinder; 3938 final int mPid; 3939 final int mUid; 3940 final Messenger messenger; 3941 final boolean isRequest; 3942 3943 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 3944 super(); 3945 messenger = m; 3946 request = r; 3947 mBinder = binder; 3948 mPid = getCallingPid(); 3949 mUid = getCallingUid(); 3950 this.isRequest = isRequest; 3951 3952 try { 3953 mBinder.linkToDeath(this, 0); 3954 } catch (RemoteException e) { 3955 binderDied(); 3956 } 3957 } 3958 3959 void unlinkDeathRecipient() { 3960 mBinder.unlinkToDeath(this, 0); 3961 } 3962 3963 public void binderDied() { 3964 log("ConnectivityService NetworkRequestInfo binderDied(" + 3965 request + ", " + mBinder + ")"); 3966 releaseNetworkRequest(request); 3967 } 3968 3969 public String toString() { 3970 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 3971 mPid + " for " + request; 3972 } 3973 } 3974 3975 @Override 3976 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 3977 Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { 3978 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 3979 == false) { 3980 enforceConnectivityInternalPermission(); 3981 } else { 3982 enforceChangePermission(); 3983 } 3984 3985 networkCapabilities = new NetworkCapabilities(networkCapabilities); 3986 3987 // if UID is restricted, don't allow them to bring up metered APNs 3988 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED) 3989 == false) { 3990 final int uidRules; 3991 synchronized(mRulesLock) { 3992 uidRules = mUidRules.get(Binder.getCallingUid(), RULE_ALLOW_ALL); 3993 } 3994 if ((uidRules & RULE_REJECT_METERED) != 0) { 3995 // we could silently fail or we can filter the available nets to only give 3996 // them those they have access to. Chose the more useful 3997 networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 3998 } 3999 } 4000 4001 if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { 4002 throw new IllegalArgumentException("Bad timeout specified"); 4003 } 4004 NetworkRequest networkRequest = new NetworkRequest(networkCapabilities, legacyType, 4005 nextNetworkRequestId()); 4006 if (DBG) log("requestNetwork for " + networkRequest); 4007 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4008 NetworkRequestInfo.REQUEST); 4009 4010 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 4011 if (timeoutMs > 0) { 4012 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 4013 nri), timeoutMs); 4014 } 4015 return networkRequest; 4016 } 4017 4018 @Override 4019 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 4020 PendingIntent operation) { 4021 // TODO 4022 return null; 4023 } 4024 4025 @Override 4026 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 4027 Messenger messenger, IBinder binder) { 4028 enforceAccessPermission(); 4029 4030 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 4031 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 4032 if (DBG) log("listenForNetwork for " + networkRequest); 4033 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4034 NetworkRequestInfo.LISTEN); 4035 4036 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 4037 return networkRequest; 4038 } 4039 4040 @Override 4041 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 4042 PendingIntent operation) { 4043 } 4044 4045 @Override 4046 public void releaseNetworkRequest(NetworkRequest networkRequest) { 4047 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), 4048 0, networkRequest)); 4049 } 4050 4051 @Override 4052 public void registerNetworkFactory(Messenger messenger, String name) { 4053 enforceConnectivityInternalPermission(); 4054 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 4055 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 4056 } 4057 4058 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 4059 if (VDBG) log("Got NetworkFactory Messenger for " + nfi.name); 4060 mNetworkFactoryInfos.put(nfi.messenger, nfi); 4061 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 4062 } 4063 4064 @Override 4065 public void unregisterNetworkFactory(Messenger messenger) { 4066 enforceConnectivityInternalPermission(); 4067 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 4068 } 4069 4070 private void handleUnregisterNetworkFactory(Messenger messenger) { 4071 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 4072 if (nfi == null) { 4073 if (VDBG) log("Failed to find Messenger in unregisterNetworkFactory"); 4074 return; 4075 } 4076 if (VDBG) log("unregisterNetworkFactory for " + nfi.name); 4077 } 4078 4079 /** 4080 * NetworkAgentInfo supporting a request by requestId. 4081 * These have already been vetted (their Capabilities satisfy the request) 4082 * and the are the highest scored network available. 4083 * the are keyed off the Requests requestId. 4084 */ 4085 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 4086 new SparseArray<NetworkAgentInfo>(); 4087 4088 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 4089 new SparseArray<NetworkAgentInfo>(); 4090 4091 // NetworkAgentInfo keyed off its connecting messenger 4092 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 4093 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 4094 new HashMap<Messenger, NetworkAgentInfo>(); 4095 4096 private final NetworkRequest mDefaultRequest; 4097 4098 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 4099 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 4100 } 4101 4102 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 4103 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 4104 int currentScore, NetworkMisc networkMisc) { 4105 enforceConnectivityInternalPermission(); 4106 4107 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), nextNetId(), 4108 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 4109 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler, 4110 networkMisc); 4111 synchronized (this) { 4112 nai.networkMonitor.systemReady = mSystemReady; 4113 } 4114 if (VDBG) log("registerNetworkAgent " + nai); 4115 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 4116 } 4117 4118 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 4119 if (VDBG) log("Got NetworkAgent Messenger"); 4120 mNetworkAgentInfos.put(na.messenger, na); 4121 synchronized (mNetworkForNetId) { 4122 mNetworkForNetId.put(na.network.netId, na); 4123 } 4124 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 4125 NetworkInfo networkInfo = na.networkInfo; 4126 na.networkInfo = null; 4127 updateNetworkInfo(na, networkInfo); 4128 } 4129 4130 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 4131 LinkProperties newLp = networkAgent.linkProperties; 4132 int netId = networkAgent.network.netId; 4133 4134 updateInterfaces(newLp, oldLp, netId); 4135 updateMtu(newLp, oldLp); 4136 updateTcpBufferSizes(networkAgent); 4137 // TODO - figure out what to do for clat 4138// for (LinkProperties lp : newLp.getStackedLinks()) { 4139// updateMtu(lp, null); 4140// } 4141 final boolean flushDns = updateRoutes(newLp, oldLp, netId); 4142 updateDnses(newLp, oldLp, netId, flushDns); 4143 updateClat(newLp, oldLp, networkAgent); 4144 } 4145 4146 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { 4147 // Update 464xlat state. 4148 if (mClat.requiresClat(na)) { 4149 4150 // If the connection was previously using clat, but is not using it now, stop the clat 4151 // daemon. Normally, this happens automatically when the connection disconnects, but if 4152 // the disconnect is not reported, or if the connection's LinkProperties changed for 4153 // some other reason (e.g., handoff changes the IP addresses on the link), it would 4154 // still be running. If it's not running, then stopping it is a no-op. 4155 if (Nat464Xlat.isRunningClat(oldLp) && !Nat464Xlat.isRunningClat(newLp)) { 4156 mClat.stopClat(); 4157 } 4158 // If the link requires clat to be running, then start the daemon now. 4159 if (na.networkInfo.isConnected()) { 4160 mClat.startClat(na); 4161 } else { 4162 mClat.stopClat(); 4163 } 4164 } 4165 } 4166 4167 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 4168 CompareResult<String> interfaceDiff = new CompareResult<String>(); 4169 if (oldLp != null) { 4170 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 4171 } else if (newLp != null) { 4172 interfaceDiff.added = newLp.getAllInterfaceNames(); 4173 } 4174 for (String iface : interfaceDiff.added) { 4175 try { 4176 mNetd.addInterfaceToNetwork(iface, netId); 4177 } catch (Exception e) { 4178 loge("Exception adding interface: " + e); 4179 } 4180 } 4181 for (String iface : interfaceDiff.removed) { 4182 try { 4183 mNetd.removeInterfaceFromNetwork(iface, netId); 4184 } catch (Exception e) { 4185 loge("Exception removing interface: " + e); 4186 } 4187 } 4188 } 4189 4190 /** 4191 * Have netd update routes from oldLp to newLp. 4192 * @return true if routes changed between oldLp and newLp 4193 */ 4194 private boolean updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 4195 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 4196 if (oldLp != null) { 4197 routeDiff = oldLp.compareAllRoutes(newLp); 4198 } else if (newLp != null) { 4199 routeDiff.added = newLp.getAllRoutes(); 4200 } 4201 4202 // add routes before removing old in case it helps with continuous connectivity 4203 4204 // do this twice, adding non-nexthop routes first, then routes they are dependent on 4205 for (RouteInfo route : routeDiff.added) { 4206 if (route.hasGateway()) continue; 4207 try { 4208 mNetd.addRoute(netId, route); 4209 } catch (Exception e) { 4210 loge("Exception in addRoute for non-gateway: " + e); 4211 } 4212 } 4213 for (RouteInfo route : routeDiff.added) { 4214 if (route.hasGateway() == false) continue; 4215 try { 4216 mNetd.addRoute(netId, route); 4217 } catch (Exception e) { 4218 loge("Exception in addRoute for gateway: " + e); 4219 } 4220 } 4221 4222 for (RouteInfo route : routeDiff.removed) { 4223 try { 4224 mNetd.removeRoute(netId, route); 4225 } catch (Exception e) { 4226 loge("Exception in removeRoute: " + e); 4227 } 4228 } 4229 return !routeDiff.added.isEmpty() || !routeDiff.removed.isEmpty(); 4230 } 4231 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId, boolean flush) { 4232 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 4233 Collection<InetAddress> dnses = newLp.getDnsServers(); 4234 if (dnses.size() == 0 && mDefaultDns != null) { 4235 dnses = new ArrayList(); 4236 dnses.add(mDefaultDns); 4237 if (DBG) { 4238 loge("no dns provided for netId " + netId + ", so using defaults"); 4239 } 4240 } 4241 try { 4242 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 4243 newLp.getDomains()); 4244 } catch (Exception e) { 4245 loge("Exception in setDnsServersForNetwork: " + e); 4246 } 4247 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 4248 if (defaultNai != null && defaultNai.network.netId == netId) { 4249 setDefaultDnsSystemProperties(dnses); 4250 } 4251 flushVmDnsCache(); 4252 } else if (flush) { 4253 try { 4254 mNetd.flushNetworkDnsCache(netId); 4255 } catch (Exception e) { 4256 loge("Exception in flushNetworkDnsCache: " + e); 4257 } 4258 flushVmDnsCache(); 4259 } 4260 } 4261 4262 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 4263 int last = 0; 4264 for (InetAddress dns : dnses) { 4265 ++last; 4266 String key = "net.dns" + last; 4267 String value = dns.getHostAddress(); 4268 SystemProperties.set(key, value); 4269 } 4270 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 4271 String key = "net.dns" + i; 4272 SystemProperties.set(key, ""); 4273 } 4274 mNumDnsEntries = last; 4275 } 4276 4277 4278 private void updateCapabilities(NetworkAgentInfo networkAgent, 4279 NetworkCapabilities networkCapabilities) { 4280 // TODO - what else here? Verify still satisfies everybody? 4281 // Check if satisfies somebody new? call callbacks? 4282 synchronized (networkAgent) { 4283 networkAgent.networkCapabilities = networkCapabilities; 4284 } 4285 } 4286 4287 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 4288 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 4289 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 4290 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 4291 networkRequest); 4292 } 4293 } 4294 4295 private void callCallbackForRequest(NetworkRequestInfo nri, 4296 NetworkAgentInfo networkAgent, int notificationType) { 4297 if (nri.messenger == null) return; // Default request has no msgr 4298 Object o; 4299 int a1 = 0; 4300 int a2 = 0; 4301 switch (notificationType) { 4302 case ConnectivityManager.CALLBACK_LOSING: 4303 a1 = 30 * 1000; // TODO - read this from NetworkMonitor 4304 // fall through 4305 case ConnectivityManager.CALLBACK_PRECHECK: 4306 case ConnectivityManager.CALLBACK_AVAILABLE: 4307 case ConnectivityManager.CALLBACK_LOST: 4308 case ConnectivityManager.CALLBACK_CAP_CHANGED: 4309 case ConnectivityManager.CALLBACK_IP_CHANGED: { 4310 o = new NetworkRequest(nri.request); 4311 a2 = networkAgent.network.netId; 4312 break; 4313 } 4314 case ConnectivityManager.CALLBACK_UNAVAIL: 4315 case ConnectivityManager.CALLBACK_RELEASED: { 4316 o = new NetworkRequest(nri.request); 4317 break; 4318 } 4319 default: { 4320 loge("Unknown notificationType " + notificationType); 4321 return; 4322 } 4323 } 4324 Message msg = Message.obtain(); 4325 msg.arg1 = a1; 4326 msg.arg2 = a2; 4327 msg.obj = o; 4328 msg.what = notificationType; 4329 try { 4330 if (VDBG) log("sending notification " + notificationType + " for " + nri.request); 4331 nri.messenger.send(msg); 4332 } catch (RemoteException e) { 4333 // may occur naturally in the race of binder death. 4334 loge("RemoteException caught trying to send a callback msg for " + nri.request); 4335 } 4336 } 4337 4338 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 4339 if (oldNetwork == null) { 4340 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 4341 return; 4342 } 4343 if (DBG) log("handleLingerComplete for " + oldNetwork.name()); 4344 if (DBG) { 4345 if (oldNetwork.networkRequests.size() != 0) { 4346 loge("Dead network still had " + oldNetwork.networkRequests.size() + " requests"); 4347 } 4348 } 4349 oldNetwork.asyncChannel.disconnect(); 4350 } 4351 4352 private void makeDefault(NetworkAgentInfo newNetwork) { 4353 if (VDBG) log("Switching to new default network: " + newNetwork); 4354 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4355 setupDataActivityTracking(newNetwork); 4356 try { 4357 mNetd.setDefaultNetId(newNetwork.network.netId); 4358 } catch (Exception e) { 4359 loge("Exception setting default network :" + e); 4360 } 4361 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 4362 updateTcpBufferSizes(newNetwork); 4363 } 4364 4365 private void handleConnectionValidated(NetworkAgentInfo newNetwork) { 4366 if (newNetwork == null) { 4367 loge("Unknown NetworkAgentInfo in handleConnectionValidated"); 4368 return; 4369 } 4370 boolean keep = newNetwork.isVPN(); 4371 boolean isNewDefault = false; 4372 if (DBG) log("handleConnectionValidated for "+newNetwork.name()); 4373 // check if any NetworkRequest wants this NetworkAgent 4374 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 4375 if (VDBG) log(" new Network has: " + newNetwork.networkCapabilities); 4376 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 4377 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 4378 if (newNetwork == currentNetwork) { 4379 if (VDBG) log("Network " + newNetwork.name() + " was already satisfying" + 4380 " request " + nri.request.requestId + ". No change."); 4381 keep = true; 4382 continue; 4383 } 4384 4385 // check if it satisfies the NetworkCapabilities 4386 if (VDBG) log(" checking if request is satisfied: " + nri.request); 4387 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 4388 newNetwork.networkCapabilities)) { 4389 // next check if it's better than any current network we're using for 4390 // this request 4391 if (VDBG) { 4392 log("currentScore = " + 4393 (currentNetwork != null ? currentNetwork.currentScore : 0) + 4394 ", newScore = " + newNetwork.currentScore); 4395 } 4396 if (currentNetwork == null || 4397 currentNetwork.currentScore < newNetwork.currentScore) { 4398 if (currentNetwork != null) { 4399 if (VDBG) log(" accepting network in place of " + currentNetwork.name()); 4400 currentNetwork.networkRequests.remove(nri.request.requestId); 4401 currentNetwork.networkLingered.add(nri.request); 4402 affectedNetworks.add(currentNetwork); 4403 } else { 4404 if (VDBG) log(" accepting network in place of null"); 4405 } 4406 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 4407 newNetwork.addRequest(nri.request); 4408 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 4409 mLegacyTypeTracker.add(nri.request.legacyType, newNetwork); 4410 } 4411 keep = true; 4412 // TODO - this could get expensive if we have alot of requests for this 4413 // network. Think about if there is a way to reduce this. Push 4414 // netid->request mapping to each factory? 4415 sendUpdatedScoreToFactories(nri.request, newNetwork.currentScore); 4416 if (mDefaultRequest.requestId == nri.request.requestId) { 4417 isNewDefault = true; 4418 updateActiveDefaultNetwork(newNetwork); 4419 if (newNetwork.linkProperties != null) { 4420 updateTcpBufferSizes(newNetwork); 4421 setDefaultDnsSystemProperties( 4422 newNetwork.linkProperties.getDnsServers()); 4423 } else { 4424 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 4425 } 4426 // Maintain the illusion: since the legacy API only 4427 // understands one network at a time, we must pretend 4428 // that the current default network disconnected before 4429 // the new one connected. 4430 if (currentNetwork != null) { 4431 mLegacyTypeTracker.remove(currentNetwork.networkInfo.getType(), 4432 currentNetwork); 4433 } 4434 mDefaultInetConditionPublished = 100; 4435 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 4436 } 4437 } 4438 } 4439 } 4440 for (NetworkAgentInfo nai : affectedNetworks) { 4441 boolean teardown = !nai.isVPN(); 4442 for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { 4443 NetworkRequest nr = nai.networkRequests.valueAt(i); 4444 try { 4445 if (mNetworkRequests.get(nr).isRequest) { 4446 teardown = false; 4447 } 4448 } catch (Exception e) { 4449 loge("Request " + nr + " not found in mNetworkRequests."); 4450 loge(" it came from request list of " + nai.name()); 4451 } 4452 } 4453 if (teardown) { 4454 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 4455 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 4456 } else { 4457 // not going to linger, so kill the list of linger networks.. only 4458 // notify them of linger if it happens as the result of gaining another, 4459 // but if they transition and old network stays up, don't tell them of linger 4460 // or very delayed loss 4461 nai.networkLingered.clear(); 4462 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 4463 } 4464 } 4465 if (keep) { 4466 if (isNewDefault) { 4467 makeDefault(newNetwork); 4468 synchronized (ConnectivityService.this) { 4469 // have a new default network, release the transition wakelock in 4470 // a second if it's held. The second pause is to allow apps 4471 // to reconnect over the new network 4472 if (mNetTransitionWakeLock.isHeld()) { 4473 mHandler.sendMessageDelayed(mHandler.obtainMessage( 4474 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 4475 mNetTransitionWakeLockSerialNumber, 0), 4476 1000); 4477 } 4478 } 4479 } 4480 4481 // Notify battery stats service about this network, both the normal 4482 // interface and any stacked links. 4483 try { 4484 final IBatteryStats bs = BatteryStatsService.getService(); 4485 final int type = newNetwork.networkInfo.getType(); 4486 4487 final String baseIface = newNetwork.linkProperties.getInterfaceName(); 4488 bs.noteNetworkInterfaceType(baseIface, type); 4489 for (LinkProperties stacked : newNetwork.linkProperties.getStackedLinks()) { 4490 final String stackedIface = stacked.getInterfaceName(); 4491 bs.noteNetworkInterfaceType(stackedIface, type); 4492 NetworkStatsFactory.noteStackedIface(stackedIface, baseIface); 4493 } 4494 } catch (RemoteException ignored) { 4495 } 4496 4497 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 4498 } else { 4499 if (DBG && newNetwork.networkRequests.size() != 0) { 4500 loge("tearing down network with live requests:"); 4501 for (int i=0; i < newNetwork.networkRequests.size(); i++) { 4502 loge(" " + newNetwork.networkRequests.valueAt(i)); 4503 } 4504 } 4505 if (VDBG) log("Validated network turns out to be unwanted. Tear it down."); 4506 newNetwork.asyncChannel.disconnect(); 4507 } 4508 } 4509 4510 4511 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 4512 NetworkInfo.State state = newInfo.getState(); 4513 NetworkInfo oldInfo = null; 4514 synchronized (networkAgent) { 4515 oldInfo = networkAgent.networkInfo; 4516 networkAgent.networkInfo = newInfo; 4517 } 4518 if (networkAgent.isVPN() && mLockdownTracker != null) { 4519 mLockdownTracker.onVpnStateChanged(newInfo); 4520 } 4521 4522 if (oldInfo != null && oldInfo.getState() == state) { 4523 if (VDBG) log("ignoring duplicate network state non-change"); 4524 return; 4525 } 4526 if (DBG) { 4527 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 4528 (oldInfo == null ? "null" : oldInfo.getState()) + 4529 " to " + state); 4530 } 4531 4532 if (state == NetworkInfo.State.CONNECTED && !networkAgent.created) { 4533 try { 4534 // This should never fail. Specifying an already in use NetID will cause failure. 4535 if (networkAgent.isVPN()) { 4536 mNetd.createVirtualNetwork(networkAgent.network.netId, 4537 !networkAgent.linkProperties.getDnsServers().isEmpty(), 4538 (networkAgent.networkMisc == null || 4539 !networkAgent.networkMisc.allowBypass)); 4540 } else { 4541 mNetd.createPhysicalNetwork(networkAgent.network.netId); 4542 } 4543 } catch (Exception e) { 4544 loge("Error creating network " + networkAgent.network.netId + ": " 4545 + e.getMessage()); 4546 return; 4547 } 4548 networkAgent.created = true; 4549 updateLinkProperties(networkAgent, null); 4550 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 4551 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 4552 if (networkAgent.isVPN()) { 4553 // Temporarily disable the default proxy (not global). 4554 synchronized (mProxyLock) { 4555 if (!mDefaultProxyDisabled) { 4556 mDefaultProxyDisabled = true; 4557 if (mGlobalProxy == null && mDefaultProxy != null) { 4558 sendProxyBroadcast(null); 4559 } 4560 } 4561 } 4562 // TODO: support proxy per network. 4563 } 4564 // Make default network if we have no default. Any network is better than no network. 4565 if (mNetworkForRequestId.get(mDefaultRequest.requestId) == null && 4566 networkAgent.isVPN() == false && 4567 mDefaultRequest.networkCapabilities.satisfiedByNetworkCapabilities( 4568 networkAgent.networkCapabilities)) { 4569 makeDefault(networkAgent); 4570 } 4571 } else if (state == NetworkInfo.State.DISCONNECTED || 4572 state == NetworkInfo.State.SUSPENDED) { 4573 networkAgent.asyncChannel.disconnect(); 4574 if (networkAgent.isVPN()) { 4575 synchronized (mProxyLock) { 4576 if (mDefaultProxyDisabled) { 4577 mDefaultProxyDisabled = false; 4578 if (mGlobalProxy == null && mDefaultProxy != null) { 4579 sendProxyBroadcast(mDefaultProxy); 4580 } 4581 } 4582 } 4583 } 4584 } 4585 } 4586 4587 private void updateNetworkScore(NetworkAgentInfo nai, int score) { 4588 if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); 4589 4590 nai.currentScore = score; 4591 4592 // TODO - This will not do the right thing if this network is lowering 4593 // its score and has requests that can be served by other 4594 // currently-active networks, or if the network is increasing its 4595 // score and other networks have requests that can be better served 4596 // by this network. 4597 // 4598 // Really we want to see if any of our requests migrate to other 4599 // active/lingered networks and if any other requests migrate to us (depending 4600 // on increasing/decreasing currentScore. That's a bit of work and probably our 4601 // score checking/network allocation code needs to be modularized so we can understand 4602 // (see handleConnectionValided for an example). 4603 // 4604 // As a first order approx, lets just advertise the new score to factories. If 4605 // somebody can beat it they will nominate a network and our normal net replacement 4606 // code will fire. 4607 for (int i = 0; i < nai.networkRequests.size(); i++) { 4608 NetworkRequest nr = nai.networkRequests.valueAt(i); 4609 sendUpdatedScoreToFactories(nr, score); 4610 } 4611 } 4612 4613 // notify only this one new request of the current state 4614 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 4615 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 4616 // TODO - read state from monitor to decide what to send. 4617// if (nai.networkMonitor.isLingering()) { 4618// notifyType = NetworkCallbacks.LOSING; 4619// } else if (nai.networkMonitor.isEvaluating()) { 4620// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 4621// } 4622 callCallbackForRequest(nri, nai, notifyType); 4623 } 4624 4625 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 4626 // The NetworkInfo we actually send out has no bearing on the real 4627 // state of affairs. For example, if the default connection is mobile, 4628 // and a request for HIPRI has just gone away, we need to pretend that 4629 // HIPRI has just disconnected. So we need to set the type to HIPRI and 4630 // the state to DISCONNECTED, even though the network is of type MOBILE 4631 // and is still connected. 4632 NetworkInfo info = new NetworkInfo(nai.networkInfo); 4633 info.setType(type); 4634 if (connected) { 4635 info.setDetailedState(DetailedState.CONNECTED, null, info.getExtraInfo()); 4636 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 4637 } else { 4638 info.setDetailedState(DetailedState.DISCONNECTED, null, info.getExtraInfo()); 4639 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 4640 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 4641 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 4642 if (info.isFailover()) { 4643 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 4644 nai.networkInfo.setFailover(false); 4645 } 4646 if (info.getReason() != null) { 4647 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 4648 } 4649 if (info.getExtraInfo() != null) { 4650 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 4651 } 4652 NetworkAgentInfo newDefaultAgent = null; 4653 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 4654 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 4655 if (newDefaultAgent != null) { 4656 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 4657 newDefaultAgent.networkInfo); 4658 } else { 4659 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 4660 } 4661 } 4662 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 4663 mDefaultInetConditionPublished); 4664 final Intent immediateIntent = new Intent(intent); 4665 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 4666 sendStickyBroadcast(immediateIntent); 4667 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 4668 if (newDefaultAgent != null) { 4669 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 4670 getConnectivityChangeDelay()); 4671 } 4672 } 4673 } 4674 4675 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 4676 if (VDBG) log("notifyType " + notifyType + " for " + networkAgent.name()); 4677 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 4678 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 4679 NetworkRequestInfo nri = mNetworkRequests.get(nr); 4680 if (VDBG) log(" sending notification for " + nr); 4681 callCallbackForRequest(nri, networkAgent, notifyType); 4682 } 4683 } 4684 4685 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 4686 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4687 if (nai != null) { 4688 synchronized (nai) { 4689 return new LinkProperties(nai.linkProperties); 4690 } 4691 } 4692 return new LinkProperties(); 4693 } 4694 4695 private NetworkInfo getNetworkInfoForType(int networkType) { 4696 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 4697 return null; 4698 4699 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4700 if (nai != null) { 4701 NetworkInfo result = new NetworkInfo(nai.networkInfo); 4702 result.setType(networkType); 4703 return result; 4704 } else { 4705 return new NetworkInfo(networkType, 0, "Unknown", ""); 4706 } 4707 } 4708 4709 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 4710 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4711 if (nai != null) { 4712 synchronized (nai) { 4713 return new NetworkCapabilities(nai.networkCapabilities); 4714 } 4715 } 4716 return new NetworkCapabilities(); 4717 } 4718 4719 @Override 4720 public boolean addVpnAddress(String address, int prefixLength) { 4721 throwIfLockdownEnabled(); 4722 int user = UserHandle.getUserId(Binder.getCallingUid()); 4723 synchronized (mVpns) { 4724 return mVpns.get(user).addAddress(address, prefixLength); 4725 } 4726 } 4727 4728 @Override 4729 public boolean removeVpnAddress(String address, int prefixLength) { 4730 throwIfLockdownEnabled(); 4731 int user = UserHandle.getUserId(Binder.getCallingUid()); 4732 synchronized (mVpns) { 4733 return mVpns.get(user).removeAddress(address, prefixLength); 4734 } 4735 } 4736} 4737