ConnectivityService.java revision 4456cf3ff0aa5fbd4a9a08c0987360b61fd38fa8
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server; 18 19import static android.Manifest.permission.MANAGE_NETWORK_POLICY; 20import static android.Manifest.permission.RECEIVE_DATA_ACTIVITY_CHANGE; 21import static android.net.ConnectivityManager.CONNECTIVITY_ACTION; 22import static android.net.ConnectivityManager.CONNECTIVITY_ACTION_IMMEDIATE; 23import static android.net.ConnectivityManager.TYPE_BLUETOOTH; 24import static android.net.ConnectivityManager.TYPE_DUMMY; 25import static android.net.ConnectivityManager.TYPE_MOBILE; 26import static android.net.ConnectivityManager.TYPE_MOBILE_MMS; 27import static android.net.ConnectivityManager.TYPE_MOBILE_SUPL; 28import static android.net.ConnectivityManager.TYPE_MOBILE_DUN; 29import static android.net.ConnectivityManager.TYPE_MOBILE_FOTA; 30import static android.net.ConnectivityManager.TYPE_MOBILE_IMS; 31import static android.net.ConnectivityManager.TYPE_MOBILE_CBS; 32import static android.net.ConnectivityManager.TYPE_MOBILE_IA; 33import static android.net.ConnectivityManager.TYPE_MOBILE_HIPRI; 34import static android.net.ConnectivityManager.TYPE_NONE; 35import static android.net.ConnectivityManager.TYPE_WIFI; 36import static android.net.ConnectivityManager.TYPE_WIMAX; 37import static android.net.ConnectivityManager.TYPE_PROXY; 38import static android.net.ConnectivityManager.getNetworkTypeName; 39import static android.net.ConnectivityManager.isNetworkTypeValid; 40import static android.net.NetworkPolicyManager.RULE_ALLOW_ALL; 41import static android.net.NetworkPolicyManager.RULE_REJECT_METERED; 42 43import android.app.AlarmManager; 44import android.app.Notification; 45import android.app.NotificationManager; 46import android.app.PendingIntent; 47import android.content.ActivityNotFoundException; 48import android.content.BroadcastReceiver; 49import android.content.ContentResolver; 50import android.content.Context; 51import android.content.ContextWrapper; 52import android.content.Intent; 53import android.content.IntentFilter; 54import android.content.pm.PackageManager; 55import android.content.res.Configuration; 56import android.content.res.Resources; 57import android.database.ContentObserver; 58import android.net.ConnectivityManager; 59import android.net.IConnectivityManager; 60import android.net.INetworkManagementEventObserver; 61import android.net.INetworkPolicyListener; 62import android.net.INetworkPolicyManager; 63import android.net.INetworkStatsService; 64import android.net.LinkAddress; 65import android.net.LinkProperties; 66import android.net.LinkProperties.CompareResult; 67import android.net.LinkQualityInfo; 68import android.net.MobileDataStateTracker; 69import android.net.Network; 70import android.net.NetworkAgent; 71import android.net.NetworkCapabilities; 72import android.net.NetworkConfig; 73import android.net.NetworkInfo; 74import android.net.NetworkInfo.DetailedState; 75import android.net.NetworkFactory; 76import android.net.NetworkMisc; 77import android.net.NetworkQuotaInfo; 78import android.net.NetworkRequest; 79import android.net.NetworkState; 80import android.net.NetworkStateTracker; 81import android.net.NetworkUtils; 82import android.net.Proxy; 83import android.net.ProxyDataTracker; 84import android.net.ProxyInfo; 85import android.net.RouteInfo; 86import android.net.SamplingDataTracker; 87import android.net.UidRange; 88import android.net.Uri; 89import android.net.wimax.WimaxManagerConstants; 90import android.os.AsyncTask; 91import android.os.Binder; 92import android.os.Build; 93import android.os.FileUtils; 94import android.os.Handler; 95import android.os.HandlerThread; 96import android.os.IBinder; 97import android.os.INetworkManagementService; 98import android.os.Looper; 99import android.os.Message; 100import android.os.Messenger; 101import android.os.ParcelFileDescriptor; 102import android.os.PowerManager; 103import android.os.Process; 104import android.os.RemoteException; 105import android.os.ServiceManager; 106import android.os.SystemClock; 107import android.os.SystemProperties; 108import android.os.UserHandle; 109import android.os.UserManager; 110import android.provider.Settings; 111import android.security.Credentials; 112import android.security.KeyStore; 113import android.telephony.TelephonyManager; 114import android.text.TextUtils; 115import android.util.Slog; 116import android.util.SparseArray; 117import android.util.SparseIntArray; 118import android.util.Xml; 119 120import com.android.internal.R; 121import com.android.internal.annotations.GuardedBy; 122import com.android.internal.app.IBatteryStats; 123import com.android.internal.net.LegacyVpnInfo; 124import com.android.internal.net.NetworkStatsFactory; 125import com.android.internal.net.VpnConfig; 126import com.android.internal.net.VpnProfile; 127import com.android.internal.telephony.DctConstants; 128import com.android.internal.telephony.Phone; 129import com.android.internal.telephony.PhoneConstants; 130import com.android.internal.telephony.TelephonyIntents; 131import com.android.internal.util.AsyncChannel; 132import com.android.internal.util.IndentingPrintWriter; 133import com.android.internal.util.XmlUtils; 134import com.android.server.am.BatteryStatsService; 135import com.android.server.connectivity.DataConnectionStats; 136import com.android.server.connectivity.Nat464Xlat; 137import com.android.server.connectivity.NetworkAgentInfo; 138import com.android.server.connectivity.NetworkMonitor; 139import com.android.server.connectivity.PacManager; 140import com.android.server.connectivity.Tethering; 141import com.android.server.connectivity.Vpn; 142import com.android.server.net.BaseNetworkObserver; 143import com.android.server.net.LockdownVpnTracker; 144import com.google.android.collect.Lists; 145import com.google.android.collect.Sets; 146 147import dalvik.system.DexClassLoader; 148 149import org.xmlpull.v1.XmlPullParser; 150import org.xmlpull.v1.XmlPullParserException; 151 152import java.io.File; 153import java.io.FileDescriptor; 154import java.io.FileNotFoundException; 155import java.io.FileReader; 156import java.io.IOException; 157import java.io.PrintWriter; 158import java.lang.reflect.Constructor; 159import java.net.HttpURLConnection; 160import java.net.Inet4Address; 161import java.net.Inet6Address; 162import java.net.InetAddress; 163import java.net.URL; 164import java.net.UnknownHostException; 165import java.util.ArrayList; 166import java.util.Arrays; 167import java.util.Collection; 168import java.util.GregorianCalendar; 169import java.util.HashMap; 170import java.util.HashSet; 171import java.util.List; 172import java.util.Map; 173import java.util.Random; 174import java.util.concurrent.atomic.AtomicBoolean; 175import java.util.concurrent.atomic.AtomicInteger; 176 177import javax.net.ssl.HostnameVerifier; 178import javax.net.ssl.HttpsURLConnection; 179import javax.net.ssl.SSLSession; 180 181/** 182 * @hide 183 */ 184public class ConnectivityService extends IConnectivityManager.Stub { 185 private static final String TAG = "ConnectivityService"; 186 187 private static final boolean DBG = true; 188 private static final boolean VDBG = true; // STOPSHIP 189 190 // network sampling debugging 191 private static final boolean SAMPLE_DBG = false; 192 193 private static final boolean LOGD_RULES = false; 194 195 // TODO: create better separation between radio types and network types 196 197 // how long to wait before switching back to a radio's default network 198 private static final int RESTORE_DEFAULT_NETWORK_DELAY = 1 * 60 * 1000; 199 // system property that can override the above value 200 private static final String NETWORK_RESTORE_DELAY_PROP_NAME = 201 "android.telephony.apn-restore"; 202 203 // Default value if FAIL_FAST_TIME_MS is not set 204 private static final int DEFAULT_FAIL_FAST_TIME_MS = 1 * 60 * 1000; 205 // system property that can override DEFAULT_FAIL_FAST_TIME_MS 206 private static final String FAIL_FAST_TIME_MS = 207 "persist.radio.fail_fast_time_ms"; 208 209 private static final String ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED = 210 "android.net.ConnectivityService.action.PKT_CNT_SAMPLE_INTERVAL_ELAPSED"; 211 212 private static final int SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE = 0; 213 214 private PendingIntent mSampleIntervalElapsedIntent; 215 216 // Set network sampling interval at 12 minutes, this way, even if the timers get 217 // aggregated, it will fire at around 15 minutes, which should allow us to 218 // aggregate this timer with other timers (specially the socket keep alive timers) 219 private static final int DEFAULT_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 12 * 60); 220 221 // start network sampling a minute after booting ... 222 private static final int DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 60); 223 224 AlarmManager mAlarmManager; 225 226 private Tethering mTethering; 227 228 private KeyStore mKeyStore; 229 230 @GuardedBy("mVpns") 231 private final SparseArray<Vpn> mVpns = new SparseArray<Vpn>(); 232 233 private boolean mLockdownEnabled; 234 private LockdownVpnTracker mLockdownTracker; 235 236 private Nat464Xlat mClat; 237 238 /** Lock around {@link #mUidRules} and {@link #mMeteredIfaces}. */ 239 private Object mRulesLock = new Object(); 240 /** Currently active network rules by UID. */ 241 private SparseIntArray mUidRules = new SparseIntArray(); 242 /** Set of ifaces that are costly. */ 243 private HashSet<String> mMeteredIfaces = Sets.newHashSet(); 244 245 /** 246 * Sometimes we want to refer to the individual network state 247 * trackers separately, and sometimes we just want to treat them 248 * abstractly. 249 */ 250 private NetworkStateTracker mNetTrackers[]; 251 252 private Context mContext; 253 private int mNetworkPreference; 254 private int mActiveDefaultNetwork = -1; 255 // 0 is full bad, 100 is full good 256 private int mDefaultInetConditionPublished = 0; 257 258 private Object mDnsLock = new Object(); 259 private int mNumDnsEntries; 260 261 private boolean mTestMode; 262 private static ConnectivityService sServiceInstance; 263 264 private INetworkManagementService mNetd; 265 private INetworkPolicyManager mPolicyManager; 266 267 private String mCurrentTcpBufferSizes; 268 269 private static final int ENABLED = 1; 270 private static final int DISABLED = 0; 271 272 /** 273 * used internally to change our mobile data enabled flag 274 */ 275 private static final int EVENT_CHANGE_MOBILE_DATA_ENABLED = 2; 276 277 /** 278 * used internally to clear a wakelock when transitioning 279 * from one net to another. Clear happens when we get a new 280 * network - EVENT_EXPIRE_NET_TRANSITION_WAKELOCK happens 281 * after a timeout if no network is found (typically 1 min). 282 */ 283 private static final int EVENT_CLEAR_NET_TRANSITION_WAKELOCK = 8; 284 285 /** 286 * used internally to reload global proxy settings 287 */ 288 private static final int EVENT_APPLY_GLOBAL_HTTP_PROXY = 9; 289 290 /** 291 * used internally to set external dependency met/unmet 292 * arg1 = ENABLED (met) or DISABLED (unmet) 293 * arg2 = NetworkType 294 */ 295 private static final int EVENT_SET_DEPENDENCY_MET = 10; 296 297 /** 298 * used internally to send a sticky broadcast delayed. 299 */ 300 private static final int EVENT_SEND_STICKY_BROADCAST_INTENT = 11; 301 302 /** 303 * Used internally to 304 * {@link NetworkStateTracker#setPolicyDataEnable(boolean)}. 305 */ 306 private static final int EVENT_SET_POLICY_DATA_ENABLE = 12; 307 308 /** 309 * Used internally to disable fail fast of mobile data 310 */ 311 private static final int EVENT_ENABLE_FAIL_FAST_MOBILE_DATA = 14; 312 313 /** 314 * used internally to indicate that data sampling interval is up 315 */ 316 private static final int EVENT_SAMPLE_INTERVAL_ELAPSED = 15; 317 318 /** 319 * PAC manager has received new port. 320 */ 321 private static final int EVENT_PROXY_HAS_CHANGED = 16; 322 323 /** 324 * used internally when registering NetworkFactories 325 * obj = NetworkFactoryInfo 326 */ 327 private static final int EVENT_REGISTER_NETWORK_FACTORY = 17; 328 329 /** 330 * used internally when registering NetworkAgents 331 * obj = Messenger 332 */ 333 private static final int EVENT_REGISTER_NETWORK_AGENT = 18; 334 335 /** 336 * used to add a network request 337 * includes a NetworkRequestInfo 338 */ 339 private static final int EVENT_REGISTER_NETWORK_REQUEST = 19; 340 341 /** 342 * indicates a timeout period is over - check if we had a network yet or not 343 * and if not, call the timeout calback (but leave the request live until they 344 * cancel it. 345 * includes a NetworkRequestInfo 346 */ 347 private static final int EVENT_TIMEOUT_NETWORK_REQUEST = 20; 348 349 /** 350 * used to add a network listener - no request 351 * includes a NetworkRequestInfo 352 */ 353 private static final int EVENT_REGISTER_NETWORK_LISTENER = 21; 354 355 /** 356 * used to remove a network request, either a listener or a real request 357 * arg1 = UID of caller 358 * obj = NetworkRequest 359 */ 360 private static final int EVENT_RELEASE_NETWORK_REQUEST = 22; 361 362 /** 363 * used internally when registering NetworkFactories 364 * obj = Messenger 365 */ 366 private static final int EVENT_UNREGISTER_NETWORK_FACTORY = 23; 367 368 /** 369 * used internally to expire a wakelock when transitioning 370 * from one net to another. Expire happens when we fail to find 371 * a new network (typically after 1 minute) - 372 * EVENT_CLEAR_NET_TRANSITION_WAKELOCK happens if we had found 373 * a replacement network. 374 */ 375 private static final int EVENT_EXPIRE_NET_TRANSITION_WAKELOCK = 24; 376 377 /** 378 * Used internally to indicate the system is ready. 379 */ 380 private static final int EVENT_SYSTEM_READY = 25; 381 382 383 /** Handler used for internal events. */ 384 final private InternalHandler mHandler; 385 /** Handler used for incoming {@link NetworkStateTracker} events. */ 386 final private NetworkStateTrackerHandler mTrackerHandler; 387 388 private boolean mSystemReady; 389 private Intent mInitialBroadcast; 390 391 private PowerManager.WakeLock mNetTransitionWakeLock; 392 private String mNetTransitionWakeLockCausedBy = ""; 393 private int mNetTransitionWakeLockSerialNumber; 394 private int mNetTransitionWakeLockTimeout; 395 396 private InetAddress mDefaultDns; 397 398 // used in DBG mode to track inet condition reports 399 private static final int INET_CONDITION_LOG_MAX_SIZE = 15; 400 private ArrayList mInetLog; 401 402 // track the current default http proxy - tell the world if we get a new one (real change) 403 private ProxyInfo mDefaultProxy = null; 404 private Object mProxyLock = new Object(); 405 private boolean mDefaultProxyDisabled = false; 406 407 // track the global proxy. 408 private ProxyInfo mGlobalProxy = null; 409 410 private PacManager mPacManager = null; 411 412 private SettingsObserver mSettingsObserver; 413 414 private UserManager mUserManager; 415 416 NetworkConfig[] mNetConfigs; 417 int mNetworksDefined; 418 419 // the set of network types that can only be enabled by system/sig apps 420 List mProtectedNetworks; 421 422 private DataConnectionStats mDataConnectionStats; 423 424 private AtomicInteger mEnableFailFastMobileDataTag = new AtomicInteger(0); 425 426 TelephonyManager mTelephonyManager; 427 428 // sequence number for Networks 429 private final static int MIN_NET_ID = 10; // some reserved marks 430 private final static int MAX_NET_ID = 65535; 431 private int mNextNetId = MIN_NET_ID; 432 433 // sequence number of NetworkRequests 434 private int mNextNetworkRequestId = 1; 435 436 /** 437 * Implements support for the legacy "one network per network type" model. 438 * 439 * We used to have a static array of NetworkStateTrackers, one for each 440 * network type, but that doesn't work any more now that we can have, 441 * for example, more that one wifi network. This class stores all the 442 * NetworkAgentInfo objects that support a given type, but the legacy 443 * API will only see the first one. 444 * 445 * It serves two main purposes: 446 * 447 * 1. Provide information about "the network for a given type" (since this 448 * API only supports one). 449 * 2. Send legacy connectivity change broadcasts. Broadcasts are sent if 450 * the first network for a given type changes, or if the default network 451 * changes. 452 */ 453 private class LegacyTypeTracker { 454 455 private static final boolean DBG = true; 456 private static final boolean VDBG = false; 457 private static final String TAG = "CSLegacyTypeTracker"; 458 459 /** 460 * Array of lists, one per legacy network type (e.g., TYPE_MOBILE_MMS). 461 * Each list holds references to all NetworkAgentInfos that are used to 462 * satisfy requests for that network type. 463 * 464 * This array is built out at startup such that an unsupported network 465 * doesn't get an ArrayList instance, making this a tristate: 466 * unsupported, supported but not active and active. 467 * 468 * The actual lists are populated when we scan the network types that 469 * are supported on this device. 470 */ 471 private ArrayList<NetworkAgentInfo> mTypeLists[]; 472 473 public LegacyTypeTracker() { 474 mTypeLists = (ArrayList<NetworkAgentInfo>[]) 475 new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE + 1]; 476 } 477 478 public void addSupportedType(int type) { 479 if (mTypeLists[type] != null) { 480 throw new IllegalStateException( 481 "legacy list for type " + type + "already initialized"); 482 } 483 mTypeLists[type] = new ArrayList<NetworkAgentInfo>(); 484 } 485 486 public boolean isTypeSupported(int type) { 487 return isNetworkTypeValid(type) && mTypeLists[type] != null; 488 } 489 490 public NetworkAgentInfo getNetworkForType(int type) { 491 if (isTypeSupported(type) && !mTypeLists[type].isEmpty()) { 492 return mTypeLists[type].get(0); 493 } else { 494 return null; 495 } 496 } 497 498 private void maybeLogBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 499 if (DBG) { 500 log("Sending " + (connected ? "connected" : "disconnected") + 501 " broadcast for type " + type + " " + nai.name() + 502 " isDefaultNetwork=" + isDefaultNetwork(nai)); 503 } 504 } 505 506 /** Adds the given network to the specified legacy type list. */ 507 public void add(int type, NetworkAgentInfo nai) { 508 if (!isTypeSupported(type)) { 509 return; // Invalid network type. 510 } 511 if (VDBG) log("Adding agent " + nai + " for legacy network type " + type); 512 513 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 514 if (list.contains(nai)) { 515 loge("Attempting to register duplicate agent for type " + type + ": " + nai); 516 return; 517 } 518 519 if (list.isEmpty() || isDefaultNetwork(nai)) { 520 maybeLogBroadcast(nai, true, type); 521 sendLegacyNetworkBroadcast(nai, true, type); 522 } 523 list.add(nai); 524 } 525 526 /** Removes the given network from the specified legacy type list. */ 527 public void remove(int type, NetworkAgentInfo nai) { 528 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 529 if (list == null || list.isEmpty()) { 530 return; 531 } 532 533 boolean wasFirstNetwork = list.get(0).equals(nai); 534 535 if (!list.remove(nai)) { 536 return; 537 } 538 539 if (wasFirstNetwork || isDefaultNetwork(nai)) { 540 maybeLogBroadcast(nai, false, type); 541 sendLegacyNetworkBroadcast(nai, false, type); 542 } 543 544 if (!list.isEmpty() && wasFirstNetwork) { 545 if (DBG) log("Other network available for type " + type + 546 ", sending connected broadcast"); 547 maybeLogBroadcast(list.get(0), false, type); 548 sendLegacyNetworkBroadcast(list.get(0), false, type); 549 } 550 } 551 552 /** Removes the given network from all legacy type lists. */ 553 public void remove(NetworkAgentInfo nai) { 554 if (VDBG) log("Removing agent " + nai); 555 for (int type = 0; type < mTypeLists.length; type++) { 556 remove(type, nai); 557 } 558 } 559 560 private String naiToString(NetworkAgentInfo nai) { 561 String name = (nai != null) ? nai.name() : "null"; 562 String state = (nai.networkInfo != null) ? 563 nai.networkInfo.getState() + "/" + nai.networkInfo.getDetailedState() : 564 "???/???"; 565 return name + " " + state; 566 } 567 568 public void dump(IndentingPrintWriter pw) { 569 for (int type = 0; type < mTypeLists.length; type++) { 570 if (mTypeLists[type] == null) continue; 571 pw.print(type + " "); 572 pw.increaseIndent(); 573 if (mTypeLists[type].size() == 0) pw.println("none"); 574 for (NetworkAgentInfo nai : mTypeLists[type]) { 575 pw.println(naiToString(nai)); 576 } 577 pw.decreaseIndent(); 578 } 579 } 580 581 // This class needs its own log method because it has a different TAG. 582 private void log(String s) { 583 Slog.d(TAG, s); 584 } 585 586 } 587 private LegacyTypeTracker mLegacyTypeTracker = new LegacyTypeTracker(); 588 589 public ConnectivityService(Context context, INetworkManagementService netManager, 590 INetworkStatsService statsService, INetworkPolicyManager policyManager) { 591 if (DBG) log("ConnectivityService starting up"); 592 593 NetworkCapabilities netCap = new NetworkCapabilities(); 594 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 595 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 596 mDefaultRequest = new NetworkRequest(netCap, TYPE_NONE, nextNetworkRequestId()); 597 NetworkRequestInfo nri = new NetworkRequestInfo(null, mDefaultRequest, new Binder(), 598 NetworkRequestInfo.REQUEST); 599 mNetworkRequests.put(mDefaultRequest, nri); 600 601 HandlerThread handlerThread = new HandlerThread("ConnectivityServiceThread"); 602 handlerThread.start(); 603 mHandler = new InternalHandler(handlerThread.getLooper()); 604 mTrackerHandler = new NetworkStateTrackerHandler(handlerThread.getLooper()); 605 606 // setup our unique device name 607 if (TextUtils.isEmpty(SystemProperties.get("net.hostname"))) { 608 String id = Settings.Secure.getString(context.getContentResolver(), 609 Settings.Secure.ANDROID_ID); 610 if (id != null && id.length() > 0) { 611 String name = new String("android-").concat(id); 612 SystemProperties.set("net.hostname", name); 613 } 614 } 615 616 // read our default dns server ip 617 String dns = Settings.Global.getString(context.getContentResolver(), 618 Settings.Global.DEFAULT_DNS_SERVER); 619 if (dns == null || dns.length() == 0) { 620 dns = context.getResources().getString( 621 com.android.internal.R.string.config_default_dns_server); 622 } 623 try { 624 mDefaultDns = NetworkUtils.numericToInetAddress(dns); 625 } catch (IllegalArgumentException e) { 626 loge("Error setting defaultDns using " + dns); 627 } 628 629 mContext = checkNotNull(context, "missing Context"); 630 mNetd = checkNotNull(netManager, "missing INetworkManagementService"); 631 mPolicyManager = checkNotNull(policyManager, "missing INetworkPolicyManager"); 632 mKeyStore = KeyStore.getInstance(); 633 mTelephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 634 635 try { 636 mPolicyManager.registerListener(mPolicyListener); 637 } catch (RemoteException e) { 638 // ouch, no rules updates means some processes may never get network 639 loge("unable to register INetworkPolicyListener" + e.toString()); 640 } 641 642 final PowerManager powerManager = (PowerManager) context.getSystemService( 643 Context.POWER_SERVICE); 644 mNetTransitionWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); 645 mNetTransitionWakeLockTimeout = mContext.getResources().getInteger( 646 com.android.internal.R.integer.config_networkTransitionTimeout); 647 648 mNetTrackers = new NetworkStateTracker[ 649 ConnectivityManager.MAX_NETWORK_TYPE+1]; 650 651 mNetConfigs = new NetworkConfig[ConnectivityManager.MAX_NETWORK_TYPE+1]; 652 653 // TODO: What is the "correct" way to do determine if this is a wifi only device? 654 boolean wifiOnly = SystemProperties.getBoolean("ro.radio.noril", false); 655 log("wifiOnly=" + wifiOnly); 656 String[] naStrings = context.getResources().getStringArray( 657 com.android.internal.R.array.networkAttributes); 658 for (String naString : naStrings) { 659 try { 660 NetworkConfig n = new NetworkConfig(naString); 661 if (VDBG) log("naString=" + naString + " config=" + n); 662 if (n.type > ConnectivityManager.MAX_NETWORK_TYPE) { 663 loge("Error in networkAttributes - ignoring attempt to define type " + 664 n.type); 665 continue; 666 } 667 if (wifiOnly && ConnectivityManager.isNetworkTypeMobile(n.type)) { 668 log("networkAttributes - ignoring mobile as this dev is wifiOnly " + 669 n.type); 670 continue; 671 } 672 if (mNetConfigs[n.type] != null) { 673 loge("Error in networkAttributes - ignoring attempt to redefine type " + 674 n.type); 675 continue; 676 } 677 mLegacyTypeTracker.addSupportedType(n.type); 678 679 mNetConfigs[n.type] = n; 680 mNetworksDefined++; 681 } catch(Exception e) { 682 // ignore it - leave the entry null 683 } 684 } 685 if (VDBG) log("mNetworksDefined=" + mNetworksDefined); 686 687 mProtectedNetworks = new ArrayList<Integer>(); 688 int[] protectedNetworks = context.getResources().getIntArray( 689 com.android.internal.R.array.config_protectedNetworks); 690 for (int p : protectedNetworks) { 691 if ((mNetConfigs[p] != null) && (mProtectedNetworks.contains(p) == false)) { 692 mProtectedNetworks.add(p); 693 } else { 694 if (DBG) loge("Ignoring protectedNetwork " + p); 695 } 696 } 697 698 mTestMode = SystemProperties.get("cm.test.mode").equals("true") 699 && SystemProperties.get("ro.build.type").equals("eng"); 700 701 mTethering = new Tethering(mContext, mNetd, statsService, mHandler.getLooper()); 702 703 //set up the listener for user state for creating user VPNs 704 IntentFilter intentFilter = new IntentFilter(); 705 intentFilter.addAction(Intent.ACTION_USER_STARTING); 706 intentFilter.addAction(Intent.ACTION_USER_STOPPING); 707 mContext.registerReceiverAsUser( 708 mUserIntentReceiver, UserHandle.ALL, intentFilter, null, null); 709 mClat = new Nat464Xlat(mContext, mNetd, this, mTrackerHandler); 710 711 try { 712 mNetd.registerObserver(mTethering); 713 mNetd.registerObserver(mDataActivityObserver); 714 mNetd.registerObserver(mClat); 715 } catch (RemoteException e) { 716 loge("Error registering observer :" + e); 717 } 718 719 if (DBG) { 720 mInetLog = new ArrayList(); 721 } 722 723 mSettingsObserver = new SettingsObserver(mHandler, EVENT_APPLY_GLOBAL_HTTP_PROXY); 724 mSettingsObserver.observe(mContext); 725 726 mDataConnectionStats = new DataConnectionStats(mContext); 727 mDataConnectionStats.startMonitoring(); 728 729 mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE); 730 731 IntentFilter filter = new IntentFilter(); 732 filter.addAction(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 733 mContext.registerReceiver( 734 new BroadcastReceiver() { 735 @Override 736 public void onReceive(Context context, Intent intent) { 737 String action = intent.getAction(); 738 if (action.equals(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED)) { 739 mHandler.sendMessage(mHandler.obtainMessage 740 (EVENT_SAMPLE_INTERVAL_ELAPSED)); 741 } 742 } 743 }, 744 new IntentFilter(filter)); 745 746 mPacManager = new PacManager(mContext, mHandler, EVENT_PROXY_HAS_CHANGED); 747 748 filter = new IntentFilter(); 749 filter.addAction(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 750 mContext.registerReceiver(mProvisioningReceiver, filter); 751 752 mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); 753 } 754 755 private synchronized int nextNetworkRequestId() { 756 return mNextNetworkRequestId++; 757 } 758 759 private void assignNextNetId(NetworkAgentInfo nai) { 760 synchronized (mNetworkForNetId) { 761 for (int i = MIN_NET_ID; i <= MAX_NET_ID; i++) { 762 int netId = mNextNetId; 763 if (++mNextNetId > MAX_NET_ID) mNextNetId = MIN_NET_ID; 764 // Make sure NetID unused. http://b/16815182 765 if (mNetworkForNetId.get(netId) == null) { 766 nai.network = new Network(netId); 767 mNetworkForNetId.put(netId, nai); 768 return; 769 } 770 } 771 } 772 throw new IllegalStateException("No free netIds"); 773 } 774 775 private int getConnectivityChangeDelay() { 776 final ContentResolver cr = mContext.getContentResolver(); 777 778 /** Check system properties for the default value then use secure settings value, if any. */ 779 int defaultDelay = SystemProperties.getInt( 780 "conn." + Settings.Global.CONNECTIVITY_CHANGE_DELAY, 781 ConnectivityManager.CONNECTIVITY_CHANGE_DELAY_DEFAULT); 782 return Settings.Global.getInt(cr, Settings.Global.CONNECTIVITY_CHANGE_DELAY, 783 defaultDelay); 784 } 785 786 private boolean teardown(NetworkStateTracker netTracker) { 787 if (netTracker.teardown()) { 788 netTracker.setTeardownRequested(true); 789 return true; 790 } else { 791 return false; 792 } 793 } 794 795 /** 796 * Check if UID should be blocked from using the network represented by the 797 * given {@link NetworkStateTracker}. 798 */ 799 private boolean isNetworkBlocked(int networkType, int uid) { 800 final boolean networkCostly; 801 final int uidRules; 802 803 LinkProperties lp = getLinkPropertiesForType(networkType); 804 final String iface = (lp == null ? "" : lp.getInterfaceName()); 805 synchronized (mRulesLock) { 806 networkCostly = mMeteredIfaces.contains(iface); 807 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 808 } 809 810 if (networkCostly && (uidRules & RULE_REJECT_METERED) != 0) { 811 return true; 812 } 813 814 // no restrictive rules; network is visible 815 return false; 816 } 817 818 /** 819 * Return a filtered {@link NetworkInfo}, potentially marked 820 * {@link DetailedState#BLOCKED} based on 821 * {@link #isNetworkBlocked}. 822 */ 823 private NetworkInfo getFilteredNetworkInfo(int networkType, int uid) { 824 NetworkInfo info = getNetworkInfoForType(networkType); 825 return getFilteredNetworkInfo(info, networkType, uid); 826 } 827 828 private NetworkInfo getFilteredNetworkInfo(NetworkInfo info, int networkType, int uid) { 829 if (isNetworkBlocked(networkType, uid)) { 830 // network is blocked; clone and override state 831 info = new NetworkInfo(info); 832 info.setDetailedState(DetailedState.BLOCKED, null, null); 833 if (VDBG) log("returning Blocked NetworkInfo"); 834 } 835 if (mLockdownTracker != null) { 836 info = mLockdownTracker.augmentNetworkInfo(info); 837 if (VDBG) log("returning Locked NetworkInfo"); 838 } 839 return info; 840 } 841 842 /** 843 * Return NetworkInfo for the active (i.e., connected) network interface. 844 * It is assumed that at most one network is active at a time. If more 845 * than one is active, it is indeterminate which will be returned. 846 * @return the info for the active network, or {@code null} if none is 847 * active 848 */ 849 @Override 850 public NetworkInfo getActiveNetworkInfo() { 851 enforceAccessPermission(); 852 final int uid = Binder.getCallingUid(); 853 return getNetworkInfo(mActiveDefaultNetwork, uid); 854 } 855 856 // only called when the default request is satisfied 857 private void updateActiveDefaultNetwork(NetworkAgentInfo nai) { 858 if (nai != null) { 859 mActiveDefaultNetwork = nai.networkInfo.getType(); 860 } else { 861 mActiveDefaultNetwork = TYPE_NONE; 862 } 863 } 864 865 /** 866 * Find the first Provisioning network. 867 * 868 * @return NetworkInfo or null if none. 869 */ 870 private NetworkInfo getProvisioningNetworkInfo() { 871 enforceAccessPermission(); 872 873 // Find the first Provisioning Network 874 NetworkInfo provNi = null; 875 for (NetworkInfo ni : getAllNetworkInfo()) { 876 if (ni.isConnectedToProvisioningNetwork()) { 877 provNi = ni; 878 break; 879 } 880 } 881 if (DBG) log("getProvisioningNetworkInfo: X provNi=" + provNi); 882 return provNi; 883 } 884 885 /** 886 * Find the first Provisioning network or the ActiveDefaultNetwork 887 * if there is no Provisioning network 888 * 889 * @return NetworkInfo or null if none. 890 */ 891 @Override 892 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 893 enforceAccessPermission(); 894 895 NetworkInfo provNi = getProvisioningNetworkInfo(); 896 if (provNi == null) { 897 final int uid = Binder.getCallingUid(); 898 provNi = getNetworkInfo(mActiveDefaultNetwork, uid); 899 } 900 if (DBG) log("getProvisioningOrActiveNetworkInfo: X provNi=" + provNi); 901 return provNi; 902 } 903 904 public NetworkInfo getActiveNetworkInfoUnfiltered() { 905 enforceAccessPermission(); 906 if (isNetworkTypeValid(mActiveDefaultNetwork)) { 907 return getNetworkInfoForType(mActiveDefaultNetwork); 908 } 909 return null; 910 } 911 912 @Override 913 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 914 enforceConnectivityInternalPermission(); 915 return getNetworkInfo(mActiveDefaultNetwork, uid); 916 } 917 918 @Override 919 public NetworkInfo getNetworkInfo(int networkType) { 920 enforceAccessPermission(); 921 final int uid = Binder.getCallingUid(); 922 return getNetworkInfo(networkType, uid); 923 } 924 925 private NetworkInfo getNetworkInfo(int networkType, int uid) { 926 NetworkInfo info = null; 927 if (isNetworkTypeValid(networkType)) { 928 if (getNetworkInfoForType(networkType) != null) { 929 info = getFilteredNetworkInfo(networkType, uid); 930 } 931 } 932 return info; 933 } 934 935 @Override 936 public NetworkInfo getNetworkInfoForNetwork(Network network) { 937 enforceAccessPermission(); 938 if (network == null) return null; 939 940 final int uid = Binder.getCallingUid(); 941 NetworkAgentInfo nai = null; 942 synchronized (mNetworkForNetId) { 943 nai = mNetworkForNetId.get(network.netId); 944 } 945 if (nai == null) return null; 946 synchronized (nai) { 947 if (nai.networkInfo == null) return null; 948 949 return getFilteredNetworkInfo(nai.networkInfo, nai.networkInfo.getType(), uid); 950 } 951 } 952 953 @Override 954 public NetworkInfo[] getAllNetworkInfo() { 955 enforceAccessPermission(); 956 final int uid = Binder.getCallingUid(); 957 final ArrayList<NetworkInfo> result = Lists.newArrayList(); 958 synchronized (mRulesLock) { 959 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 960 networkType++) { 961 if (getNetworkInfoForType(networkType) != null) { 962 result.add(getFilteredNetworkInfo(networkType, uid)); 963 } 964 } 965 } 966 return result.toArray(new NetworkInfo[result.size()]); 967 } 968 969 @Override 970 public Network[] getAllNetworks() { 971 enforceAccessPermission(); 972 final ArrayList<Network> result = new ArrayList(); 973 synchronized (mNetworkForNetId) { 974 for (int i = 0; i < mNetworkForNetId.size(); i++) { 975 result.add(new Network(mNetworkForNetId.valueAt(i).network)); 976 } 977 } 978 return result.toArray(new Network[result.size()]); 979 } 980 981 @Override 982 public boolean isNetworkSupported(int networkType) { 983 enforceAccessPermission(); 984 return (isNetworkTypeValid(networkType) && (getNetworkInfoForType(networkType) != null)); 985 } 986 987 /** 988 * Return LinkProperties for the active (i.e., connected) default 989 * network interface. It is assumed that at most one default network 990 * is active at a time. If more than one is active, it is indeterminate 991 * which will be returned. 992 * @return the ip properties for the active network, or {@code null} if 993 * none is active 994 */ 995 @Override 996 public LinkProperties getActiveLinkProperties() { 997 return getLinkPropertiesForType(mActiveDefaultNetwork); 998 } 999 1000 @Override 1001 public LinkProperties getLinkPropertiesForType(int networkType) { 1002 enforceAccessPermission(); 1003 if (isNetworkTypeValid(networkType)) { 1004 return getLinkPropertiesForTypeInternal(networkType); 1005 } 1006 return null; 1007 } 1008 1009 // TODO - this should be ALL networks 1010 @Override 1011 public LinkProperties getLinkProperties(Network network) { 1012 enforceAccessPermission(); 1013 NetworkAgentInfo nai = null; 1014 synchronized (mNetworkForNetId) { 1015 nai = mNetworkForNetId.get(network.netId); 1016 } 1017 1018 if (nai != null) { 1019 synchronized (nai) { 1020 return new LinkProperties(nai.linkProperties); 1021 } 1022 } 1023 return null; 1024 } 1025 1026 @Override 1027 public NetworkCapabilities getNetworkCapabilities(Network network) { 1028 enforceAccessPermission(); 1029 NetworkAgentInfo nai = null; 1030 synchronized (mNetworkForNetId) { 1031 nai = mNetworkForNetId.get(network.netId); 1032 } 1033 if (nai != null) { 1034 synchronized (nai) { 1035 return new NetworkCapabilities(nai.networkCapabilities); 1036 } 1037 } 1038 return null; 1039 } 1040 1041 @Override 1042 public NetworkState[] getAllNetworkState() { 1043 enforceAccessPermission(); 1044 final int uid = Binder.getCallingUid(); 1045 final ArrayList<NetworkState> result = Lists.newArrayList(); 1046 synchronized (mRulesLock) { 1047 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1048 networkType++) { 1049 if (getNetworkInfoForType(networkType) != null) { 1050 final NetworkInfo info = getFilteredNetworkInfo(networkType, uid); 1051 final LinkProperties lp = getLinkPropertiesForTypeInternal(networkType); 1052 final NetworkCapabilities netcap = getNetworkCapabilitiesForType(networkType); 1053 result.add(new NetworkState(info, lp, netcap)); 1054 } 1055 } 1056 } 1057 return result.toArray(new NetworkState[result.size()]); 1058 } 1059 1060 private NetworkState getNetworkStateUnchecked(int networkType) { 1061 if (isNetworkTypeValid(networkType)) { 1062 NetworkInfo info = getNetworkInfoForType(networkType); 1063 if (info != null) { 1064 return new NetworkState(info, 1065 getLinkPropertiesForTypeInternal(networkType), 1066 getNetworkCapabilitiesForType(networkType)); 1067 } 1068 } 1069 return null; 1070 } 1071 1072 @Override 1073 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1074 enforceAccessPermission(); 1075 1076 final long token = Binder.clearCallingIdentity(); 1077 try { 1078 final NetworkState state = getNetworkStateUnchecked(mActiveDefaultNetwork); 1079 if (state != null) { 1080 try { 1081 return mPolicyManager.getNetworkQuotaInfo(state); 1082 } catch (RemoteException e) { 1083 } 1084 } 1085 return null; 1086 } finally { 1087 Binder.restoreCallingIdentity(token); 1088 } 1089 } 1090 1091 @Override 1092 public boolean isActiveNetworkMetered() { 1093 enforceAccessPermission(); 1094 final long token = Binder.clearCallingIdentity(); 1095 try { 1096 return isNetworkMeteredUnchecked(mActiveDefaultNetwork); 1097 } finally { 1098 Binder.restoreCallingIdentity(token); 1099 } 1100 } 1101 1102 private boolean isNetworkMeteredUnchecked(int networkType) { 1103 final NetworkState state = getNetworkStateUnchecked(networkType); 1104 if (state != null) { 1105 try { 1106 return mPolicyManager.isNetworkMetered(state); 1107 } catch (RemoteException e) { 1108 } 1109 } 1110 return false; 1111 } 1112 1113 private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { 1114 @Override 1115 public void interfaceClassDataActivityChanged(String label, boolean active, long tsNanos) { 1116 int deviceType = Integer.parseInt(label); 1117 sendDataActivityBroadcast(deviceType, active, tsNanos); 1118 } 1119 }; 1120 1121 /** 1122 * Ensure that a network route exists to deliver traffic to the specified 1123 * host via the specified network interface. 1124 * @param networkType the type of the network over which traffic to the 1125 * specified host is to be routed 1126 * @param hostAddress the IP address of the host to which the route is 1127 * desired 1128 * @return {@code true} on success, {@code false} on failure 1129 */ 1130 public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress) { 1131 enforceChangePermission(); 1132 if (mProtectedNetworks.contains(networkType)) { 1133 enforceConnectivityInternalPermission(); 1134 } 1135 1136 InetAddress addr; 1137 try { 1138 addr = InetAddress.getByAddress(hostAddress); 1139 } catch (UnknownHostException e) { 1140 if (DBG) log("requestRouteToHostAddress got " + e.toString()); 1141 return false; 1142 } 1143 1144 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1145 if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); 1146 return false; 1147 } 1148 1149 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1150 if (nai == null) { 1151 if (mLegacyTypeTracker.isTypeSupported(networkType) == false) { 1152 if (DBG) log("requestRouteToHostAddress on unsupported network: " + networkType); 1153 } else { 1154 if (DBG) log("requestRouteToHostAddress on down network: " + networkType); 1155 } 1156 return false; 1157 } 1158 1159 DetailedState netState; 1160 synchronized (nai) { 1161 netState = nai.networkInfo.getDetailedState(); 1162 } 1163 1164 if (netState != DetailedState.CONNECTED && netState != DetailedState.CAPTIVE_PORTAL_CHECK) { 1165 if (VDBG) { 1166 log("requestRouteToHostAddress on down network " 1167 + "(" + networkType + ") - dropped" 1168 + " netState=" + netState); 1169 } 1170 return false; 1171 } 1172 1173 final int uid = Binder.getCallingUid(); 1174 final long token = Binder.clearCallingIdentity(); 1175 try { 1176 LinkProperties lp; 1177 int netId; 1178 synchronized (nai) { 1179 lp = nai.linkProperties; 1180 netId = nai.network.netId; 1181 } 1182 boolean ok = addLegacyRouteToHost(lp, addr, netId, uid); 1183 if (DBG) log("requestRouteToHostAddress ok=" + ok); 1184 return ok; 1185 } finally { 1186 Binder.restoreCallingIdentity(token); 1187 } 1188 } 1189 1190 private boolean addLegacyRouteToHost(LinkProperties lp, InetAddress addr, int netId, int uid) { 1191 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), addr); 1192 if (bestRoute == null) { 1193 bestRoute = RouteInfo.makeHostRoute(addr, lp.getInterfaceName()); 1194 } else { 1195 String iface = bestRoute.getInterface(); 1196 if (bestRoute.getGateway().equals(addr)) { 1197 // if there is no better route, add the implied hostroute for our gateway 1198 bestRoute = RouteInfo.makeHostRoute(addr, iface); 1199 } else { 1200 // if we will connect to this through another route, add a direct route 1201 // to it's gateway 1202 bestRoute = RouteInfo.makeHostRoute(addr, bestRoute.getGateway(), iface); 1203 } 1204 } 1205 if (VDBG) log("Adding " + bestRoute + " for interface " + bestRoute.getInterface()); 1206 try { 1207 mNetd.addLegacyRouteForNetId(netId, bestRoute, uid); 1208 } catch (Exception e) { 1209 // never crash - catch them all 1210 if (DBG) loge("Exception trying to add a route: " + e); 1211 return false; 1212 } 1213 return true; 1214 } 1215 1216 public void setDataDependency(int networkType, boolean met) { 1217 enforceConnectivityInternalPermission(); 1218 1219 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_DEPENDENCY_MET, 1220 (met ? ENABLED : DISABLED), networkType)); 1221 } 1222 1223 private void handleSetDependencyMet(int networkType, boolean met) { 1224 if (mNetTrackers[networkType] != null) { 1225 if (DBG) { 1226 log("handleSetDependencyMet(" + networkType + ", " + met + ")"); 1227 } 1228 mNetTrackers[networkType].setDependencyMet(met); 1229 } 1230 } 1231 1232 private INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() { 1233 @Override 1234 public void onUidRulesChanged(int uid, int uidRules) { 1235 // caller is NPMS, since we only register with them 1236 if (LOGD_RULES) { 1237 log("onUidRulesChanged(uid=" + uid + ", uidRules=" + uidRules + ")"); 1238 } 1239 1240 synchronized (mRulesLock) { 1241 // skip update when we've already applied rules 1242 final int oldRules = mUidRules.get(uid, RULE_ALLOW_ALL); 1243 if (oldRules == uidRules) return; 1244 1245 mUidRules.put(uid, uidRules); 1246 } 1247 1248 // TODO: notify UID when it has requested targeted updates 1249 } 1250 1251 @Override 1252 public void onMeteredIfacesChanged(String[] meteredIfaces) { 1253 // caller is NPMS, since we only register with them 1254 if (LOGD_RULES) { 1255 log("onMeteredIfacesChanged(ifaces=" + Arrays.toString(meteredIfaces) + ")"); 1256 } 1257 1258 synchronized (mRulesLock) { 1259 mMeteredIfaces.clear(); 1260 for (String iface : meteredIfaces) { 1261 mMeteredIfaces.add(iface); 1262 } 1263 } 1264 } 1265 1266 @Override 1267 public void onRestrictBackgroundChanged(boolean restrictBackground) { 1268 // caller is NPMS, since we only register with them 1269 if (LOGD_RULES) { 1270 log("onRestrictBackgroundChanged(restrictBackground=" + restrictBackground + ")"); 1271 } 1272 1273 // kick off connectivity change broadcast for active network, since 1274 // global background policy change is radical. 1275 final int networkType = mActiveDefaultNetwork; 1276 if (isNetworkTypeValid(networkType)) { 1277 final NetworkStateTracker tracker = mNetTrackers[networkType]; 1278 if (tracker != null) { 1279 final NetworkInfo info = tracker.getNetworkInfo(); 1280 if (info != null && info.isConnected()) { 1281 sendConnectedBroadcast(info); 1282 } 1283 } 1284 } 1285 } 1286 }; 1287 1288 @Override 1289 public void setPolicyDataEnable(int networkType, boolean enabled) { 1290 // only someone like NPMS should only be calling us 1291 mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); 1292 1293 mHandler.sendMessage(mHandler.obtainMessage( 1294 EVENT_SET_POLICY_DATA_ENABLE, networkType, (enabled ? ENABLED : DISABLED))); 1295 } 1296 1297 private void handleSetPolicyDataEnable(int networkType, boolean enabled) { 1298 // TODO - handle this passing to factories 1299// if (isNetworkTypeValid(networkType)) { 1300// final NetworkStateTracker tracker = mNetTrackers[networkType]; 1301// if (tracker != null) { 1302// tracker.setPolicyDataEnable(enabled); 1303// } 1304// } 1305 } 1306 1307 private void enforceAccessPermission() { 1308 mContext.enforceCallingOrSelfPermission( 1309 android.Manifest.permission.ACCESS_NETWORK_STATE, 1310 "ConnectivityService"); 1311 } 1312 1313 private void enforceChangePermission() { 1314 mContext.enforceCallingOrSelfPermission( 1315 android.Manifest.permission.CHANGE_NETWORK_STATE, 1316 "ConnectivityService"); 1317 } 1318 1319 // TODO Make this a special check when it goes public 1320 private void enforceTetherChangePermission() { 1321 mContext.enforceCallingOrSelfPermission( 1322 android.Manifest.permission.CHANGE_NETWORK_STATE, 1323 "ConnectivityService"); 1324 } 1325 1326 private void enforceTetherAccessPermission() { 1327 mContext.enforceCallingOrSelfPermission( 1328 android.Manifest.permission.ACCESS_NETWORK_STATE, 1329 "ConnectivityService"); 1330 } 1331 1332 private void enforceConnectivityInternalPermission() { 1333 mContext.enforceCallingOrSelfPermission( 1334 android.Manifest.permission.CONNECTIVITY_INTERNAL, 1335 "ConnectivityService"); 1336 } 1337 1338 public void sendConnectedBroadcast(NetworkInfo info) { 1339 enforceConnectivityInternalPermission(); 1340 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1341 sendGeneralBroadcast(info, CONNECTIVITY_ACTION); 1342 } 1343 1344 private void sendConnectedBroadcastDelayed(NetworkInfo info, int delayMs) { 1345 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1346 sendGeneralBroadcastDelayed(info, CONNECTIVITY_ACTION, delayMs); 1347 } 1348 1349 private void sendInetConditionBroadcast(NetworkInfo info) { 1350 sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION); 1351 } 1352 1353 private Intent makeGeneralIntent(NetworkInfo info, String bcastType) { 1354 if (mLockdownTracker != null) { 1355 info = mLockdownTracker.augmentNetworkInfo(info); 1356 } 1357 1358 Intent intent = new Intent(bcastType); 1359 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 1360 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 1361 if (info.isFailover()) { 1362 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 1363 info.setFailover(false); 1364 } 1365 if (info.getReason() != null) { 1366 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 1367 } 1368 if (info.getExtraInfo() != null) { 1369 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 1370 info.getExtraInfo()); 1371 } 1372 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 1373 return intent; 1374 } 1375 1376 private void sendGeneralBroadcast(NetworkInfo info, String bcastType) { 1377 sendStickyBroadcast(makeGeneralIntent(info, bcastType)); 1378 } 1379 1380 private void sendGeneralBroadcastDelayed(NetworkInfo info, String bcastType, int delayMs) { 1381 sendStickyBroadcastDelayed(makeGeneralIntent(info, bcastType), delayMs); 1382 } 1383 1384 private void sendDataActivityBroadcast(int deviceType, boolean active, long tsNanos) { 1385 Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); 1386 intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); 1387 intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); 1388 intent.putExtra(ConnectivityManager.EXTRA_REALTIME_NS, tsNanos); 1389 final long ident = Binder.clearCallingIdentity(); 1390 try { 1391 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, 1392 RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); 1393 } finally { 1394 Binder.restoreCallingIdentity(ident); 1395 } 1396 } 1397 1398 private void sendStickyBroadcast(Intent intent) { 1399 synchronized(this) { 1400 if (!mSystemReady) { 1401 mInitialBroadcast = new Intent(intent); 1402 } 1403 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1404 if (VDBG) { 1405 log("sendStickyBroadcast: action=" + intent.getAction()); 1406 } 1407 1408 final long ident = Binder.clearCallingIdentity(); 1409 try { 1410 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1411 } finally { 1412 Binder.restoreCallingIdentity(ident); 1413 } 1414 } 1415 } 1416 1417 private void sendStickyBroadcastDelayed(Intent intent, int delayMs) { 1418 if (delayMs <= 0) { 1419 sendStickyBroadcast(intent); 1420 } else { 1421 if (VDBG) { 1422 log("sendStickyBroadcastDelayed: delayMs=" + delayMs + ", action=" 1423 + intent.getAction()); 1424 } 1425 mHandler.sendMessageDelayed(mHandler.obtainMessage( 1426 EVENT_SEND_STICKY_BROADCAST_INTENT, intent), delayMs); 1427 } 1428 } 1429 1430 void systemReady() { 1431 // start network sampling .. 1432 Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 1433 intent.setPackage(mContext.getPackageName()); 1434 1435 mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, 1436 SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); 1437 setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); 1438 1439 loadGlobalProxy(); 1440 1441 synchronized(this) { 1442 mSystemReady = true; 1443 if (mInitialBroadcast != null) { 1444 mContext.sendStickyBroadcastAsUser(mInitialBroadcast, UserHandle.ALL); 1445 mInitialBroadcast = null; 1446 } 1447 } 1448 // load the global proxy at startup 1449 mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY)); 1450 1451 // Try bringing up tracker, but if KeyStore isn't ready yet, wait 1452 // for user to unlock device. 1453 if (!updateLockdownVpn()) { 1454 final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_PRESENT); 1455 mContext.registerReceiver(mUserPresentReceiver, filter); 1456 } 1457 1458 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SYSTEM_READY)); 1459 } 1460 1461 private BroadcastReceiver mUserPresentReceiver = new BroadcastReceiver() { 1462 @Override 1463 public void onReceive(Context context, Intent intent) { 1464 // Try creating lockdown tracker, since user present usually means 1465 // unlocked keystore. 1466 if (updateLockdownVpn()) { 1467 mContext.unregisterReceiver(this); 1468 } 1469 } 1470 }; 1471 1472 /** @hide */ 1473 @Override 1474 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 1475 enforceConnectivityInternalPermission(); 1476 if (DBG) log("captivePortalCheckCompleted: ni=" + info + " captive=" + isCaptivePortal); 1477// mNetTrackers[info.getType()].captivePortalCheckCompleted(isCaptivePortal); 1478 } 1479 1480 /** 1481 * Setup data activity tracking for the given network. 1482 * 1483 * Every {@code setupDataActivityTracking} should be paired with a 1484 * {@link #removeDataActivityTracking} for cleanup. 1485 */ 1486 private void setupDataActivityTracking(NetworkAgentInfo networkAgent) { 1487 final String iface = networkAgent.linkProperties.getInterfaceName(); 1488 1489 final int timeout; 1490 int type = ConnectivityManager.TYPE_NONE; 1491 1492 if (networkAgent.networkCapabilities.hasTransport( 1493 NetworkCapabilities.TRANSPORT_CELLULAR)) { 1494 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1495 Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, 1496 5); 1497 type = ConnectivityManager.TYPE_MOBILE; 1498 } else if (networkAgent.networkCapabilities.hasTransport( 1499 NetworkCapabilities.TRANSPORT_WIFI)) { 1500 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1501 Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, 1502 0); 1503 type = ConnectivityManager.TYPE_WIFI; 1504 } else { 1505 // do not track any other networks 1506 timeout = 0; 1507 } 1508 1509 if (timeout > 0 && iface != null && type != ConnectivityManager.TYPE_NONE) { 1510 try { 1511 mNetd.addIdleTimer(iface, timeout, type); 1512 } catch (Exception e) { 1513 // You shall not crash! 1514 loge("Exception in setupDataActivityTracking " + e); 1515 } 1516 } 1517 } 1518 1519 /** 1520 * Remove data activity tracking when network disconnects. 1521 */ 1522 private void removeDataActivityTracking(NetworkAgentInfo networkAgent) { 1523 final String iface = networkAgent.linkProperties.getInterfaceName(); 1524 final NetworkCapabilities caps = networkAgent.networkCapabilities; 1525 1526 if (iface != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) || 1527 caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))) { 1528 try { 1529 // the call fails silently if no idletimer setup for this interface 1530 mNetd.removeIdleTimer(iface); 1531 } catch (Exception e) { 1532 loge("Exception in removeDataActivityTracking " + e); 1533 } 1534 } 1535 } 1536 1537 /** 1538 * Reads the network specific MTU size from reources. 1539 * and set it on it's iface. 1540 */ 1541 private void updateMtu(LinkProperties newLp, LinkProperties oldLp) { 1542 final String iface = newLp.getInterfaceName(); 1543 final int mtu = newLp.getMtu(); 1544 if (oldLp != null && newLp.isIdenticalMtu(oldLp)) { 1545 if (VDBG) log("identical MTU - not setting"); 1546 return; 1547 } 1548 1549 if (LinkProperties.isValidMtu(mtu, newLp.hasGlobalIPv6Address()) == false) { 1550 loge("Unexpected mtu value: " + mtu + ", " + iface); 1551 return; 1552 } 1553 1554 // Cannot set MTU without interface name 1555 if (TextUtils.isEmpty(iface)) { 1556 loge("Setting MTU size with null iface."); 1557 return; 1558 } 1559 1560 try { 1561 if (VDBG) log("Setting MTU size: " + iface + ", " + mtu); 1562 mNetd.setMtu(iface, mtu); 1563 } catch (Exception e) { 1564 Slog.e(TAG, "exception in setMtu()" + e); 1565 } 1566 } 1567 1568 private static final String DEFAULT_TCP_BUFFER_SIZES = "4096,87380,110208,4096,16384,110208"; 1569 1570 private void updateTcpBufferSizes(NetworkAgentInfo nai) { 1571 if (isDefaultNetwork(nai) == false) { 1572 return; 1573 } 1574 1575 String tcpBufferSizes = nai.linkProperties.getTcpBufferSizes(); 1576 String[] values = null; 1577 if (tcpBufferSizes != null) { 1578 values = tcpBufferSizes.split(","); 1579 } 1580 1581 if (values == null || values.length != 6) { 1582 if (VDBG) log("Invalid tcpBufferSizes string: " + tcpBufferSizes +", using defaults"); 1583 tcpBufferSizes = DEFAULT_TCP_BUFFER_SIZES; 1584 values = tcpBufferSizes.split(","); 1585 } 1586 1587 if (tcpBufferSizes.equals(mCurrentTcpBufferSizes)) return; 1588 1589 try { 1590 if (VDBG) Slog.d(TAG, "Setting tx/rx TCP buffers to " + tcpBufferSizes); 1591 1592 final String prefix = "/sys/kernel/ipv4/tcp_"; 1593 FileUtils.stringToFile(prefix + "rmem_min", values[0]); 1594 FileUtils.stringToFile(prefix + "rmem_def", values[1]); 1595 FileUtils.stringToFile(prefix + "rmem_max", values[2]); 1596 FileUtils.stringToFile(prefix + "wmem_min", values[3]); 1597 FileUtils.stringToFile(prefix + "wmem_def", values[4]); 1598 FileUtils.stringToFile(prefix + "wmem_max", values[5]); 1599 mCurrentTcpBufferSizes = tcpBufferSizes; 1600 } catch (IOException e) { 1601 loge("Can't set TCP buffer sizes:" + e); 1602 } 1603 1604 final String defaultRwndKey = "net.tcp.default_init_rwnd"; 1605 int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0); 1606 Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(), 1607 Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue); 1608 final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd"; 1609 if (rwndValue != 0) { 1610 SystemProperties.set(sysctlKey, rwndValue.toString()); 1611 } 1612 } 1613 1614 private void flushVmDnsCache() { 1615 /* 1616 * Tell the VMs to toss their DNS caches 1617 */ 1618 Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE); 1619 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); 1620 /* 1621 * Connectivity events can happen before boot has completed ... 1622 */ 1623 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1624 final long ident = Binder.clearCallingIdentity(); 1625 try { 1626 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 1627 } finally { 1628 Binder.restoreCallingIdentity(ident); 1629 } 1630 } 1631 1632 @Override 1633 public int getRestoreDefaultNetworkDelay(int networkType) { 1634 String restoreDefaultNetworkDelayStr = SystemProperties.get( 1635 NETWORK_RESTORE_DELAY_PROP_NAME); 1636 if(restoreDefaultNetworkDelayStr != null && 1637 restoreDefaultNetworkDelayStr.length() != 0) { 1638 try { 1639 return Integer.valueOf(restoreDefaultNetworkDelayStr); 1640 } catch (NumberFormatException e) { 1641 } 1642 } 1643 // if the system property isn't set, use the value for the apn type 1644 int ret = RESTORE_DEFAULT_NETWORK_DELAY; 1645 1646 if ((networkType <= ConnectivityManager.MAX_NETWORK_TYPE) && 1647 (mNetConfigs[networkType] != null)) { 1648 ret = mNetConfigs[networkType].restoreTime; 1649 } 1650 return ret; 1651 } 1652 1653 @Override 1654 protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { 1655 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1656 if (mContext.checkCallingOrSelfPermission( 1657 android.Manifest.permission.DUMP) 1658 != PackageManager.PERMISSION_GRANTED) { 1659 pw.println("Permission Denial: can't dump ConnectivityService " + 1660 "from from pid=" + Binder.getCallingPid() + ", uid=" + 1661 Binder.getCallingUid()); 1662 return; 1663 } 1664 1665 pw.println("NetworkFactories for:"); 1666 pw.increaseIndent(); 1667 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 1668 pw.println(nfi.name); 1669 } 1670 pw.decreaseIndent(); 1671 pw.println(); 1672 1673 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 1674 pw.print("Active default network: "); 1675 if (defaultNai == null) { 1676 pw.println("none"); 1677 } else { 1678 pw.println(defaultNai.network.netId); 1679 } 1680 pw.println(); 1681 1682 pw.println("Current Networks:"); 1683 pw.increaseIndent(); 1684 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 1685 pw.println(nai.toString()); 1686 pw.increaseIndent(); 1687 pw.println("Requests:"); 1688 pw.increaseIndent(); 1689 for (int i = 0; i < nai.networkRequests.size(); i++) { 1690 pw.println(nai.networkRequests.valueAt(i).toString()); 1691 } 1692 pw.decreaseIndent(); 1693 pw.println("Lingered:"); 1694 pw.increaseIndent(); 1695 for (NetworkRequest nr : nai.networkLingered) pw.println(nr.toString()); 1696 pw.decreaseIndent(); 1697 pw.decreaseIndent(); 1698 } 1699 pw.decreaseIndent(); 1700 pw.println(); 1701 1702 pw.println("Network Requests:"); 1703 pw.increaseIndent(); 1704 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 1705 pw.println(nri.toString()); 1706 } 1707 pw.println(); 1708 pw.decreaseIndent(); 1709 1710 pw.print("mActiveDefaultNetwork: " + mActiveDefaultNetwork); 1711 if (mActiveDefaultNetwork != TYPE_NONE) { 1712 NetworkInfo activeNetworkInfo = getActiveNetworkInfo(); 1713 if (activeNetworkInfo != null) { 1714 pw.print(" " + activeNetworkInfo.getState() + 1715 "/" + activeNetworkInfo.getDetailedState()); 1716 } 1717 } 1718 pw.println(); 1719 1720 pw.println("mLegacyTypeTracker:"); 1721 pw.increaseIndent(); 1722 mLegacyTypeTracker.dump(pw); 1723 pw.decreaseIndent(); 1724 pw.println(); 1725 1726 synchronized (this) { 1727 pw.println("NetworkTranstionWakeLock is currently " + 1728 (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held."); 1729 pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy); 1730 } 1731 pw.println(); 1732 1733 mTethering.dump(fd, pw, args); 1734 1735 if (mInetLog != null) { 1736 pw.println(); 1737 pw.println("Inet condition reports:"); 1738 pw.increaseIndent(); 1739 for(int i = 0; i < mInetLog.size(); i++) { 1740 pw.println(mInetLog.get(i)); 1741 } 1742 pw.decreaseIndent(); 1743 } 1744 } 1745 1746 private boolean isLiveNetworkAgent(NetworkAgentInfo nai, String msg) { 1747 final NetworkAgentInfo officialNai; 1748 synchronized (mNetworkForNetId) { 1749 officialNai = mNetworkForNetId.get(nai.network.netId); 1750 } 1751 if (officialNai != null && officialNai.equals(nai)) return true; 1752 if (officialNai != null || VDBG) { 1753 loge(msg + " - validateNetworkAgent found mismatched netId: " + officialNai + 1754 " - " + nai); 1755 } 1756 return false; 1757 } 1758 1759 // must be stateless - things change under us. 1760 private class NetworkStateTrackerHandler extends Handler { 1761 public NetworkStateTrackerHandler(Looper looper) { 1762 super(looper); 1763 } 1764 1765 @Override 1766 public void handleMessage(Message msg) { 1767 NetworkInfo info; 1768 switch (msg.what) { 1769 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 1770 handleAsyncChannelHalfConnect(msg); 1771 break; 1772 } 1773 case AsyncChannel.CMD_CHANNEL_DISCONNECT: { 1774 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1775 if (nai != null) nai.asyncChannel.disconnect(); 1776 break; 1777 } 1778 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 1779 handleAsyncChannelDisconnected(msg); 1780 break; 1781 } 1782 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { 1783 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1784 if (nai == null) { 1785 loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); 1786 } else { 1787 updateCapabilities(nai, (NetworkCapabilities)msg.obj); 1788 } 1789 break; 1790 } 1791 case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { 1792 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1793 if (nai == null) { 1794 loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); 1795 } else { 1796 if (VDBG) { 1797 log("Update of Linkproperties for " + nai.name() + 1798 "; created=" + nai.created); 1799 } 1800 LinkProperties oldLp = nai.linkProperties; 1801 synchronized (nai) { 1802 nai.linkProperties = (LinkProperties)msg.obj; 1803 } 1804 if (nai.created) updateLinkProperties(nai, oldLp); 1805 } 1806 break; 1807 } 1808 case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { 1809 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1810 if (nai == null) { 1811 loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); 1812 break; 1813 } 1814 info = (NetworkInfo) msg.obj; 1815 updateNetworkInfo(nai, info); 1816 break; 1817 } 1818 case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { 1819 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1820 if (nai == null) { 1821 loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); 1822 break; 1823 } 1824 Integer score = (Integer) msg.obj; 1825 if (score != null) updateNetworkScore(nai, score.intValue()); 1826 break; 1827 } 1828 case NetworkAgent.EVENT_UID_RANGES_ADDED: { 1829 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1830 if (nai == null) { 1831 loge("EVENT_UID_RANGES_ADDED from unknown NetworkAgent"); 1832 break; 1833 } 1834 try { 1835 mNetd.addVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1836 } catch (Exception e) { 1837 // Never crash! 1838 loge("Exception in addVpnUidRanges: " + e); 1839 } 1840 break; 1841 } 1842 case NetworkAgent.EVENT_UID_RANGES_REMOVED: { 1843 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1844 if (nai == null) { 1845 loge("EVENT_UID_RANGES_REMOVED from unknown NetworkAgent"); 1846 break; 1847 } 1848 try { 1849 mNetd.removeVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1850 } catch (Exception e) { 1851 // Never crash! 1852 loge("Exception in removeVpnUidRanges: " + e); 1853 } 1854 break; 1855 } 1856 case NetworkAgent.EVENT_BLOCK_ADDRESS_FAMILY: { 1857 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1858 if (nai == null) { 1859 loge("EVENT_BLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1860 break; 1861 } 1862 try { 1863 mNetd.blockAddressFamily((Integer) msg.obj, nai.network.netId, 1864 nai.linkProperties.getInterfaceName()); 1865 } catch (Exception e) { 1866 // Never crash! 1867 loge("Exception in blockAddressFamily: " + e); 1868 } 1869 break; 1870 } 1871 case NetworkAgent.EVENT_UNBLOCK_ADDRESS_FAMILY: { 1872 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1873 if (nai == null) { 1874 loge("EVENT_UNBLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1875 break; 1876 } 1877 try { 1878 mNetd.unblockAddressFamily((Integer) msg.obj, nai.network.netId, 1879 nai.linkProperties.getInterfaceName()); 1880 } catch (Exception e) { 1881 // Never crash! 1882 loge("Exception in blockAddressFamily: " + e); 1883 } 1884 break; 1885 } 1886 case NetworkMonitor.EVENT_NETWORK_VALIDATED: { 1887 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1888 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_VALIDATED")) { 1889 handleConnectionValidated(nai); 1890 } 1891 break; 1892 } 1893 case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { 1894 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1895 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_LINGER_COMPLETE")) { 1896 handleLingerComplete(nai); 1897 } 1898 break; 1899 } 1900 case NetworkMonitor.EVENT_PROVISIONING_NOTIFICATION: { 1901 NetworkAgentInfo nai = null; 1902 synchronized (mNetworkForNetId) { 1903 nai = mNetworkForNetId.get(msg.arg2); 1904 } 1905 if (nai == null) { 1906 loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); 1907 break; 1908 } 1909 if (msg.arg1 == 0) { 1910 setProvNotificationVisibleIntent(false, msg.arg2, 0, null, null); 1911 } else { 1912 setProvNotificationVisibleIntent(true, msg.arg2, nai.networkInfo.getType(), 1913 nai.networkInfo.getExtraInfo(), (PendingIntent)msg.obj); 1914 } 1915 break; 1916 } 1917 case NetworkStateTracker.EVENT_STATE_CHANGED: { 1918 info = (NetworkInfo) msg.obj; 1919 NetworkInfo.State state = info.getState(); 1920 1921 if (VDBG || (state == NetworkInfo.State.CONNECTED) || 1922 (state == NetworkInfo.State.DISCONNECTED) || 1923 (state == NetworkInfo.State.SUSPENDED)) { 1924 log("ConnectivityChange for " + 1925 info.getTypeName() + ": " + 1926 state + "/" + info.getDetailedState()); 1927 } 1928 1929 // Since mobile has the notion of a network/apn that can be used for 1930 // provisioning we need to check every time we're connected as 1931 // CaptiveProtalTracker won't detected it because DCT doesn't report it 1932 // as connected as ACTION_ANY_DATA_CONNECTION_STATE_CHANGED instead its 1933 // reported as ACTION_DATA_CONNECTION_CONNECTED_TO_PROVISIONING_APN. Which 1934 // is received by MDST and sent here as EVENT_STATE_CHANGED. 1935 if (ConnectivityManager.isNetworkTypeMobile(info.getType()) 1936 && (0 != Settings.Global.getInt(mContext.getContentResolver(), 1937 Settings.Global.DEVICE_PROVISIONED, 0)) 1938 && (((state == NetworkInfo.State.CONNECTED) 1939 && (info.getType() == ConnectivityManager.TYPE_MOBILE)) 1940 || info.isConnectedToProvisioningNetwork())) { 1941 log("ConnectivityChange checkMobileProvisioning for" 1942 + " TYPE_MOBILE or ProvisioningNetwork"); 1943 checkMobileProvisioning(CheckMp.MAX_TIMEOUT_MS); 1944 } 1945 1946 EventLogTags.writeConnectivityStateChanged( 1947 info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); 1948 1949 if (info.isConnectedToProvisioningNetwork()) { 1950 /** 1951 * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING 1952 * for now its an in between network, its a network that 1953 * is actually a default network but we don't want it to be 1954 * announced as such to keep background applications from 1955 * trying to use it. It turns out that some still try so we 1956 * take the additional step of clearing any default routes 1957 * to the link that may have incorrectly setup by the lower 1958 * levels. 1959 */ 1960 LinkProperties lp = getLinkPropertiesForTypeInternal(info.getType()); 1961 if (DBG) { 1962 log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); 1963 } 1964 1965 // Clear any default routes setup by the radio so 1966 // any activity by applications trying to use this 1967 // connection will fail until the provisioning network 1968 // is enabled. 1969 /* 1970 for (RouteInfo r : lp.getRoutes()) { 1971 removeRoute(lp, r, TO_DEFAULT_TABLE, 1972 mNetTrackers[info.getType()].getNetwork().netId); 1973 } 1974 */ 1975 } else if (state == NetworkInfo.State.DISCONNECTED) { 1976 } else if (state == NetworkInfo.State.SUSPENDED) { 1977 } else if (state == NetworkInfo.State.CONNECTED) { 1978 // handleConnect(info); 1979 } 1980 if (mLockdownTracker != null) { 1981 mLockdownTracker.onNetworkInfoChanged(info); 1982 } 1983 break; 1984 } 1985 case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { 1986 info = (NetworkInfo) msg.obj; 1987 // TODO: Temporary allowing network configuration 1988 // change not resetting sockets. 1989 // @see bug/4455071 1990 /* 1991 handleConnectivityChange(info.getType(), mCurrentLinkProperties[info.getType()], 1992 false); 1993 */ 1994 break; 1995 } 1996 } 1997 } 1998 } 1999 2000 private void handleAsyncChannelHalfConnect(Message msg) { 2001 AsyncChannel ac = (AsyncChannel) msg.obj; 2002 if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { 2003 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2004 if (VDBG) log("NetworkFactory connected"); 2005 // A network factory has connected. Send it all current NetworkRequests. 2006 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 2007 if (nri.isRequest == false) continue; 2008 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2009 ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, 2010 (nai != null ? nai.currentScore : 0), 0, nri.request); 2011 } 2012 } else { 2013 loge("Error connecting NetworkFactory"); 2014 mNetworkFactoryInfos.remove(msg.obj); 2015 } 2016 } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { 2017 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2018 if (VDBG) log("NetworkAgent connected"); 2019 // A network agent has requested a connection. Establish the connection. 2020 mNetworkAgentInfos.get(msg.replyTo).asyncChannel. 2021 sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 2022 } else { 2023 loge("Error connecting NetworkAgent"); 2024 NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); 2025 if (nai != null) { 2026 synchronized (mNetworkForNetId) { 2027 mNetworkForNetId.remove(nai.network.netId); 2028 } 2029 // Just in case. 2030 mLegacyTypeTracker.remove(nai); 2031 } 2032 } 2033 } 2034 } 2035 private void handleAsyncChannelDisconnected(Message msg) { 2036 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 2037 if (nai != null) { 2038 if (DBG) { 2039 log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); 2040 } 2041 // A network agent has disconnected. 2042 if (nai.created) { 2043 // Tell netd to clean up the configuration for this network 2044 // (routing rules, DNS, etc). 2045 try { 2046 mNetd.removeNetwork(nai.network.netId); 2047 } catch (Exception e) { 2048 loge("Exception removing network: " + e); 2049 } 2050 } 2051 // TODO - if we move the logic to the network agent (have them disconnect 2052 // because they lost all their requests or because their score isn't good) 2053 // then they would disconnect organically, report their new state and then 2054 // disconnect the channel. 2055 if (nai.networkInfo.isConnected()) { 2056 nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, 2057 null, null); 2058 } 2059 if (isDefaultNetwork(nai)) { 2060 mDefaultInetConditionPublished = 0; 2061 } 2062 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); 2063 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); 2064 mNetworkAgentInfos.remove(msg.replyTo); 2065 updateClat(null, nai.linkProperties, nai); 2066 mLegacyTypeTracker.remove(nai); 2067 synchronized (mNetworkForNetId) { 2068 mNetworkForNetId.remove(nai.network.netId); 2069 } 2070 // Since we've lost the network, go through all the requests that 2071 // it was satisfying and see if any other factory can satisfy them. 2072 final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); 2073 for (int i = 0; i < nai.networkRequests.size(); i++) { 2074 NetworkRequest request = nai.networkRequests.valueAt(i); 2075 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); 2076 if (VDBG) { 2077 log(" checking request " + request + ", currentNetwork = " + 2078 (currentNetwork != null ? currentNetwork.name() : "null")); 2079 } 2080 if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { 2081 mNetworkForRequestId.remove(request.requestId); 2082 sendUpdatedScoreToFactories(request, 0); 2083 NetworkAgentInfo alternative = null; 2084 for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { 2085 NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); 2086 if (existing.networkInfo.isConnected() && 2087 request.networkCapabilities.satisfiedByNetworkCapabilities( 2088 existing.networkCapabilities) && 2089 (alternative == null || 2090 alternative.currentScore < existing.currentScore)) { 2091 alternative = existing; 2092 } 2093 } 2094 if (alternative != null && !toActivate.contains(alternative)) { 2095 toActivate.add(alternative); 2096 } 2097 } 2098 } 2099 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 2100 removeDataActivityTracking(nai); 2101 mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; 2102 requestNetworkTransitionWakelock(nai.name()); 2103 } 2104 for (NetworkAgentInfo networkToActivate : toActivate) { 2105 networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2106 } 2107 } 2108 } 2109 2110 private void handleRegisterNetworkRequest(Message msg) { 2111 final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); 2112 final NetworkCapabilities newCap = nri.request.networkCapabilities; 2113 int score = 0; 2114 2115 // Check for the best currently alive network that satisfies this request 2116 NetworkAgentInfo bestNetwork = null; 2117 for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { 2118 if (VDBG) log("handleRegisterNetworkRequest checking " + network.name()); 2119 if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { 2120 if (VDBG) log("apparently satisfied. currentScore=" + network.currentScore); 2121 if ((bestNetwork == null) || bestNetwork.currentScore < network.currentScore) { 2122 if (!nri.isRequest) { 2123 // Not setting bestNetwork here as a listening NetworkRequest may be 2124 // satisfied by multiple Networks. Instead the request is added to 2125 // each satisfying Network and notified about each. 2126 network.addRequest(nri.request); 2127 notifyNetworkCallback(network, nri); 2128 } else { 2129 bestNetwork = network; 2130 } 2131 } 2132 } 2133 } 2134 if (bestNetwork != null) { 2135 if (VDBG) log("using " + bestNetwork.name()); 2136 if (bestNetwork.networkInfo.isConnected()) { 2137 // Cancel any lingering so the linger timeout doesn't teardown this network 2138 // even though we have a request for it. 2139 bestNetwork.networkLingered.clear(); 2140 bestNetwork.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2141 } 2142 bestNetwork.addRequest(nri.request); 2143 mNetworkForRequestId.put(nri.request.requestId, bestNetwork); 2144 notifyNetworkCallback(bestNetwork, nri); 2145 score = bestNetwork.currentScore; 2146 if (nri.request.legacyType != TYPE_NONE) { 2147 mLegacyTypeTracker.add(nri.request.legacyType, bestNetwork); 2148 } 2149 } 2150 mNetworkRequests.put(nri.request, nri); 2151 if (nri.isRequest) { 2152 if (DBG) log("sending new NetworkRequest to factories"); 2153 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2154 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 2155 0, nri.request); 2156 } 2157 } 2158 } 2159 2160 private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) { 2161 NetworkRequestInfo nri = mNetworkRequests.get(request); 2162 if (nri != null) { 2163 if (Process.SYSTEM_UID != callingUid && nri.mUid != callingUid) { 2164 if (DBG) log("Attempt to release unowned NetworkRequest " + request); 2165 return; 2166 } 2167 if (DBG) log("releasing NetworkRequest " + request); 2168 nri.unlinkDeathRecipient(); 2169 mNetworkRequests.remove(request); 2170 if (nri.isRequest) { 2171 // Find all networks that are satisfying this request and remove the request 2172 // from their request lists. 2173 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2174 if (nai.networkRequests.get(nri.request.requestId) != null) { 2175 nai.networkRequests.remove(nri.request.requestId); 2176 if (VDBG) { 2177 log(" Removing from current network " + nai.name() + 2178 ", leaving " + nai.networkRequests.size() + 2179 " requests."); 2180 } 2181 // check if has any requests remaining and if not, 2182 // disconnect (unless it's a VPN). 2183 boolean keep = nai.isVPN(); 2184 for (int i = 0; i < nai.networkRequests.size() && !keep; i++) { 2185 NetworkRequest r = nai.networkRequests.valueAt(i); 2186 if (mNetworkRequests.get(r).isRequest) keep = true; 2187 } 2188 if (!keep) { 2189 if (DBG) log("no live requests for " + nai.name() + "; disconnecting"); 2190 nai.asyncChannel.disconnect(); 2191 } 2192 } 2193 } 2194 2195 // Maintain the illusion. When this request arrived, we might have preteneded 2196 // that a network connected to serve it, even though the network was already 2197 // connected. Now that this request has gone away, we might have to pretend 2198 // that the network disconnected. LegacyTypeTracker will generate that 2199 // phatom disconnect for this type. 2200 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2201 if (nai != null) { 2202 mNetworkForRequestId.remove(nri.request.requestId); 2203 if (nri.request.legacyType != TYPE_NONE) { 2204 mLegacyTypeTracker.remove(nri.request.legacyType, nai); 2205 } 2206 } 2207 2208 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2209 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 2210 nri.request); 2211 } 2212 } else { 2213 // listens don't have a singular affectedNetwork. Check all networks to see 2214 // if this listen request applies and remove it. 2215 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2216 nai.networkRequests.remove(nri.request.requestId); 2217 } 2218 } 2219 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 2220 } 2221 } 2222 2223 private class InternalHandler extends Handler { 2224 public InternalHandler(Looper looper) { 2225 super(looper); 2226 } 2227 2228 @Override 2229 public void handleMessage(Message msg) { 2230 NetworkInfo info; 2231 switch (msg.what) { 2232 case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: 2233 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 2234 String causedBy = null; 2235 synchronized (ConnectivityService.this) { 2236 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 2237 mNetTransitionWakeLock.isHeld()) { 2238 mNetTransitionWakeLock.release(); 2239 causedBy = mNetTransitionWakeLockCausedBy; 2240 } else { 2241 break; 2242 } 2243 } 2244 if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { 2245 log("Failed to find a new network - expiring NetTransition Wakelock"); 2246 } else { 2247 log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + 2248 " cleared because we found a replacement network"); 2249 } 2250 break; 2251 } 2252 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 2253 handleDeprecatedGlobalHttpProxy(); 2254 break; 2255 } 2256 case EVENT_SET_DEPENDENCY_MET: { 2257 boolean met = (msg.arg1 == ENABLED); 2258 handleSetDependencyMet(msg.arg2, met); 2259 break; 2260 } 2261 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 2262 Intent intent = (Intent)msg.obj; 2263 sendStickyBroadcast(intent); 2264 break; 2265 } 2266 case EVENT_SET_POLICY_DATA_ENABLE: { 2267 final int networkType = msg.arg1; 2268 final boolean enabled = msg.arg2 == ENABLED; 2269 handleSetPolicyDataEnable(networkType, enabled); 2270 break; 2271 } 2272 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 2273 int tag = mEnableFailFastMobileDataTag.get(); 2274 if (msg.arg1 == tag) { 2275 MobileDataStateTracker mobileDst = 2276 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2277 if (mobileDst != null) { 2278 mobileDst.setEnableFailFastMobileData(msg.arg2); 2279 } 2280 } else { 2281 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 2282 + " != tag:" + tag); 2283 } 2284 break; 2285 } 2286 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 2287 handleNetworkSamplingTimeout(); 2288 break; 2289 } 2290 case EVENT_PROXY_HAS_CHANGED: { 2291 handleApplyDefaultProxy((ProxyInfo)msg.obj); 2292 break; 2293 } 2294 case EVENT_REGISTER_NETWORK_FACTORY: { 2295 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 2296 break; 2297 } 2298 case EVENT_UNREGISTER_NETWORK_FACTORY: { 2299 handleUnregisterNetworkFactory((Messenger)msg.obj); 2300 break; 2301 } 2302 case EVENT_REGISTER_NETWORK_AGENT: { 2303 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 2304 break; 2305 } 2306 case EVENT_REGISTER_NETWORK_REQUEST: 2307 case EVENT_REGISTER_NETWORK_LISTENER: { 2308 handleRegisterNetworkRequest(msg); 2309 break; 2310 } 2311 case EVENT_RELEASE_NETWORK_REQUEST: { 2312 handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); 2313 break; 2314 } 2315 case EVENT_SYSTEM_READY: { 2316 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2317 nai.networkMonitor.systemReady = true; 2318 } 2319 break; 2320 } 2321 } 2322 } 2323 } 2324 2325 // javadoc from interface 2326 public int tether(String iface) { 2327 enforceTetherChangePermission(); 2328 2329 if (isTetheringSupported()) { 2330 return mTethering.tether(iface); 2331 } else { 2332 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2333 } 2334 } 2335 2336 // javadoc from interface 2337 public int untether(String iface) { 2338 enforceTetherChangePermission(); 2339 2340 if (isTetheringSupported()) { 2341 return mTethering.untether(iface); 2342 } else { 2343 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2344 } 2345 } 2346 2347 // javadoc from interface 2348 public int getLastTetherError(String iface) { 2349 enforceTetherAccessPermission(); 2350 2351 if (isTetheringSupported()) { 2352 return mTethering.getLastTetherError(iface); 2353 } else { 2354 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2355 } 2356 } 2357 2358 // TODO - proper iface API for selection by property, inspection, etc 2359 public String[] getTetherableUsbRegexs() { 2360 enforceTetherAccessPermission(); 2361 if (isTetheringSupported()) { 2362 return mTethering.getTetherableUsbRegexs(); 2363 } else { 2364 return new String[0]; 2365 } 2366 } 2367 2368 public String[] getTetherableWifiRegexs() { 2369 enforceTetherAccessPermission(); 2370 if (isTetheringSupported()) { 2371 return mTethering.getTetherableWifiRegexs(); 2372 } else { 2373 return new String[0]; 2374 } 2375 } 2376 2377 public String[] getTetherableBluetoothRegexs() { 2378 enforceTetherAccessPermission(); 2379 if (isTetheringSupported()) { 2380 return mTethering.getTetherableBluetoothRegexs(); 2381 } else { 2382 return new String[0]; 2383 } 2384 } 2385 2386 public int setUsbTethering(boolean enable) { 2387 enforceTetherChangePermission(); 2388 if (isTetheringSupported()) { 2389 return mTethering.setUsbTethering(enable); 2390 } else { 2391 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2392 } 2393 } 2394 2395 // TODO - move iface listing, queries, etc to new module 2396 // javadoc from interface 2397 public String[] getTetherableIfaces() { 2398 enforceTetherAccessPermission(); 2399 return mTethering.getTetherableIfaces(); 2400 } 2401 2402 public String[] getTetheredIfaces() { 2403 enforceTetherAccessPermission(); 2404 return mTethering.getTetheredIfaces(); 2405 } 2406 2407 public String[] getTetheringErroredIfaces() { 2408 enforceTetherAccessPermission(); 2409 return mTethering.getErroredIfaces(); 2410 } 2411 2412 public String[] getTetheredDhcpRanges() { 2413 enforceConnectivityInternalPermission(); 2414 return mTethering.getTetheredDhcpRanges(); 2415 } 2416 2417 // if ro.tether.denied = true we default to no tethering 2418 // gservices could set the secure setting to 1 though to enable it on a build where it 2419 // had previously been turned off. 2420 public boolean isTetheringSupported() { 2421 enforceTetherAccessPermission(); 2422 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 2423 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 2424 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0) 2425 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); 2426 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 2427 mTethering.getTetherableWifiRegexs().length != 0 || 2428 mTethering.getTetherableBluetoothRegexs().length != 0) && 2429 mTethering.getUpstreamIfaceTypes().length != 0); 2430 } 2431 2432 // Called when we lose the default network and have no replacement yet. 2433 // This will automatically be cleared after X seconds or a new default network 2434 // becomes CONNECTED, whichever happens first. The timer is started by the 2435 // first caller and not restarted by subsequent callers. 2436 private void requestNetworkTransitionWakelock(String forWhom) { 2437 int serialNum = 0; 2438 synchronized (this) { 2439 if (mNetTransitionWakeLock.isHeld()) return; 2440 serialNum = ++mNetTransitionWakeLockSerialNumber; 2441 mNetTransitionWakeLock.acquire(); 2442 mNetTransitionWakeLockCausedBy = forWhom; 2443 } 2444 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2445 EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), 2446 mNetTransitionWakeLockTimeout); 2447 return; 2448 } 2449 2450 // 100 percent is full good, 0 is full bad. 2451 public void reportInetCondition(int networkType, int percentage) { 2452 if (percentage > 50) return; // don't handle good network reports 2453 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 2454 if (nai != null) reportBadNetwork(nai.network); 2455 } 2456 2457 public void reportBadNetwork(Network network) { 2458 //TODO 2459 } 2460 2461 public ProxyInfo getProxy() { 2462 // this information is already available as a world read/writable jvm property 2463 // so this API change wouldn't have a benifit. It also breaks the passing 2464 // of proxy info to all the JVMs. 2465 // enforceAccessPermission(); 2466 synchronized (mProxyLock) { 2467 ProxyInfo ret = mGlobalProxy; 2468 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 2469 return ret; 2470 } 2471 } 2472 2473 public void setGlobalProxy(ProxyInfo proxyProperties) { 2474 enforceConnectivityInternalPermission(); 2475 2476 synchronized (mProxyLock) { 2477 if (proxyProperties == mGlobalProxy) return; 2478 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 2479 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 2480 2481 String host = ""; 2482 int port = 0; 2483 String exclList = ""; 2484 String pacFileUrl = ""; 2485 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 2486 (proxyProperties.getPacFileUrl() != null))) { 2487 if (!proxyProperties.isValid()) { 2488 if (DBG) 2489 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2490 return; 2491 } 2492 mGlobalProxy = new ProxyInfo(proxyProperties); 2493 host = mGlobalProxy.getHost(); 2494 port = mGlobalProxy.getPort(); 2495 exclList = mGlobalProxy.getExclusionListAsString(); 2496 if (proxyProperties.getPacFileUrl() != null) { 2497 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 2498 } 2499 } else { 2500 mGlobalProxy = null; 2501 } 2502 ContentResolver res = mContext.getContentResolver(); 2503 final long token = Binder.clearCallingIdentity(); 2504 try { 2505 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 2506 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 2507 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 2508 exclList); 2509 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 2510 } finally { 2511 Binder.restoreCallingIdentity(token); 2512 } 2513 } 2514 2515 if (mGlobalProxy == null) { 2516 proxyProperties = mDefaultProxy; 2517 } 2518 sendProxyBroadcast(proxyProperties); 2519 } 2520 2521 private void loadGlobalProxy() { 2522 ContentResolver res = mContext.getContentResolver(); 2523 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 2524 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 2525 String exclList = Settings.Global.getString(res, 2526 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 2527 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 2528 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 2529 ProxyInfo proxyProperties; 2530 if (!TextUtils.isEmpty(pacFileUrl)) { 2531 proxyProperties = new ProxyInfo(pacFileUrl); 2532 } else { 2533 proxyProperties = new ProxyInfo(host, port, exclList); 2534 } 2535 if (!proxyProperties.isValid()) { 2536 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2537 return; 2538 } 2539 2540 synchronized (mProxyLock) { 2541 mGlobalProxy = proxyProperties; 2542 } 2543 } 2544 } 2545 2546 public ProxyInfo getGlobalProxy() { 2547 // this information is already available as a world read/writable jvm property 2548 // so this API change wouldn't have a benifit. It also breaks the passing 2549 // of proxy info to all the JVMs. 2550 // enforceAccessPermission(); 2551 synchronized (mProxyLock) { 2552 return mGlobalProxy; 2553 } 2554 } 2555 2556 private void handleApplyDefaultProxy(ProxyInfo proxy) { 2557 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 2558 && (proxy.getPacFileUrl() == null)) { 2559 proxy = null; 2560 } 2561 synchronized (mProxyLock) { 2562 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 2563 if (mDefaultProxy == proxy) return; // catches repeated nulls 2564 if (proxy != null && !proxy.isValid()) { 2565 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 2566 return; 2567 } 2568 2569 // This call could be coming from the PacManager, containing the port of the local 2570 // proxy. If this new proxy matches the global proxy then copy this proxy to the 2571 // global (to get the correct local port), and send a broadcast. 2572 // TODO: Switch PacManager to have its own message to send back rather than 2573 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 2574 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 2575 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 2576 mGlobalProxy = proxy; 2577 sendProxyBroadcast(mGlobalProxy); 2578 return; 2579 } 2580 mDefaultProxy = proxy; 2581 2582 if (mGlobalProxy != null) return; 2583 if (!mDefaultProxyDisabled) { 2584 sendProxyBroadcast(proxy); 2585 } 2586 } 2587 } 2588 2589 private void handleDeprecatedGlobalHttpProxy() { 2590 String proxy = Settings.Global.getString(mContext.getContentResolver(), 2591 Settings.Global.HTTP_PROXY); 2592 if (!TextUtils.isEmpty(proxy)) { 2593 String data[] = proxy.split(":"); 2594 if (data.length == 0) { 2595 return; 2596 } 2597 2598 String proxyHost = data[0]; 2599 int proxyPort = 8080; 2600 if (data.length > 1) { 2601 try { 2602 proxyPort = Integer.parseInt(data[1]); 2603 } catch (NumberFormatException e) { 2604 return; 2605 } 2606 } 2607 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 2608 setGlobalProxy(p); 2609 } 2610 } 2611 2612 private void sendProxyBroadcast(ProxyInfo proxy) { 2613 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 2614 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 2615 if (DBG) log("sending Proxy Broadcast for " + proxy); 2616 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 2617 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 2618 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2619 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 2620 final long ident = Binder.clearCallingIdentity(); 2621 try { 2622 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2623 } finally { 2624 Binder.restoreCallingIdentity(ident); 2625 } 2626 } 2627 2628 private static class SettingsObserver extends ContentObserver { 2629 private int mWhat; 2630 private Handler mHandler; 2631 SettingsObserver(Handler handler, int what) { 2632 super(handler); 2633 mHandler = handler; 2634 mWhat = what; 2635 } 2636 2637 void observe(Context context) { 2638 ContentResolver resolver = context.getContentResolver(); 2639 resolver.registerContentObserver(Settings.Global.getUriFor( 2640 Settings.Global.HTTP_PROXY), false, this); 2641 } 2642 2643 @Override 2644 public void onChange(boolean selfChange) { 2645 mHandler.obtainMessage(mWhat).sendToTarget(); 2646 } 2647 } 2648 2649 private static void log(String s) { 2650 Slog.d(TAG, s); 2651 } 2652 2653 private static void loge(String s) { 2654 Slog.e(TAG, s); 2655 } 2656 2657 int convertFeatureToNetworkType(int networkType, String feature) { 2658 int usedNetworkType = networkType; 2659 2660 if(networkType == ConnectivityManager.TYPE_MOBILE) { 2661 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 2662 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 2663 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 2664 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 2665 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 2666 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 2667 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 2668 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 2669 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 2670 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 2671 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 2672 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 2673 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 2674 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 2675 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 2676 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { 2677 usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; 2678 } else { 2679 Slog.e(TAG, "Can't match any mobile netTracker!"); 2680 } 2681 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 2682 if (TextUtils.equals(feature, "p2p")) { 2683 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 2684 } else { 2685 Slog.e(TAG, "Can't match any wifi netTracker!"); 2686 } 2687 } else { 2688 Slog.e(TAG, "Unexpected network type"); 2689 } 2690 return usedNetworkType; 2691 } 2692 2693 private static <T> T checkNotNull(T value, String message) { 2694 if (value == null) { 2695 throw new NullPointerException(message); 2696 } 2697 return value; 2698 } 2699 2700 /** 2701 * Prepare for a VPN application. This method is used by VpnDialogs 2702 * and not available in ConnectivityManager. Permissions are checked 2703 * in Vpn class. 2704 * @hide 2705 */ 2706 @Override 2707 public boolean prepareVpn(String oldPackage, String newPackage) { 2708 throwIfLockdownEnabled(); 2709 int user = UserHandle.getUserId(Binder.getCallingUid()); 2710 synchronized(mVpns) { 2711 return mVpns.get(user).prepare(oldPackage, newPackage); 2712 } 2713 } 2714 2715 /** 2716 * Set whether the current VPN package has the ability to launch VPNs without 2717 * user intervention. This method is used by system UIs and not available 2718 * in ConnectivityManager. Permissions are checked in Vpn class. 2719 * @hide 2720 */ 2721 @Override 2722 public void setVpnPackageAuthorization(boolean authorized) { 2723 int user = UserHandle.getUserId(Binder.getCallingUid()); 2724 synchronized(mVpns) { 2725 mVpns.get(user).setPackageAuthorization(authorized); 2726 } 2727 } 2728 2729 /** 2730 * Configure a TUN interface and return its file descriptor. Parameters 2731 * are encoded and opaque to this class. This method is used by VpnBuilder 2732 * and not available in ConnectivityManager. Permissions are checked in 2733 * Vpn class. 2734 * @hide 2735 */ 2736 @Override 2737 public ParcelFileDescriptor establishVpn(VpnConfig config) { 2738 throwIfLockdownEnabled(); 2739 int user = UserHandle.getUserId(Binder.getCallingUid()); 2740 synchronized(mVpns) { 2741 return mVpns.get(user).establish(config); 2742 } 2743 } 2744 2745 /** 2746 * Start legacy VPN, controlling native daemons as needed. Creates a 2747 * secondary thread to perform connection work, returning quickly. 2748 */ 2749 @Override 2750 public void startLegacyVpn(VpnProfile profile) { 2751 throwIfLockdownEnabled(); 2752 final LinkProperties egress = getActiveLinkProperties(); 2753 if (egress == null) { 2754 throw new IllegalStateException("Missing active network connection"); 2755 } 2756 int user = UserHandle.getUserId(Binder.getCallingUid()); 2757 synchronized(mVpns) { 2758 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 2759 } 2760 } 2761 2762 /** 2763 * Return the information of the ongoing legacy VPN. This method is used 2764 * by VpnSettings and not available in ConnectivityManager. Permissions 2765 * are checked in Vpn class. 2766 * @hide 2767 */ 2768 @Override 2769 public LegacyVpnInfo getLegacyVpnInfo() { 2770 throwIfLockdownEnabled(); 2771 int user = UserHandle.getUserId(Binder.getCallingUid()); 2772 synchronized(mVpns) { 2773 return mVpns.get(user).getLegacyVpnInfo(); 2774 } 2775 } 2776 2777 /** 2778 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 2779 * not available in ConnectivityManager. 2780 * Permissions are checked in Vpn class. 2781 * @hide 2782 */ 2783 @Override 2784 public VpnConfig getVpnConfig() { 2785 int user = UserHandle.getUserId(Binder.getCallingUid()); 2786 synchronized(mVpns) { 2787 return mVpns.get(user).getVpnConfig(); 2788 } 2789 } 2790 2791 @Override 2792 public boolean updateLockdownVpn() { 2793 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 2794 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 2795 return false; 2796 } 2797 2798 // Tear down existing lockdown if profile was removed 2799 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 2800 if (mLockdownEnabled) { 2801 if (!mKeyStore.isUnlocked()) { 2802 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 2803 return false; 2804 } 2805 2806 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 2807 final VpnProfile profile = VpnProfile.decode( 2808 profileName, mKeyStore.get(Credentials.VPN + profileName)); 2809 int user = UserHandle.getUserId(Binder.getCallingUid()); 2810 synchronized(mVpns) { 2811 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 2812 profile)); 2813 } 2814 } else { 2815 setLockdownTracker(null); 2816 } 2817 2818 return true; 2819 } 2820 2821 /** 2822 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 2823 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 2824 */ 2825 private void setLockdownTracker(LockdownVpnTracker tracker) { 2826 // Shutdown any existing tracker 2827 final LockdownVpnTracker existing = mLockdownTracker; 2828 mLockdownTracker = null; 2829 if (existing != null) { 2830 existing.shutdown(); 2831 } 2832 2833 try { 2834 if (tracker != null) { 2835 mNetd.setFirewallEnabled(true); 2836 mNetd.setFirewallInterfaceRule("lo", true); 2837 mLockdownTracker = tracker; 2838 mLockdownTracker.init(); 2839 } else { 2840 mNetd.setFirewallEnabled(false); 2841 } 2842 } catch (RemoteException e) { 2843 // ignored; NMS lives inside system_server 2844 } 2845 } 2846 2847 private void throwIfLockdownEnabled() { 2848 if (mLockdownEnabled) { 2849 throw new IllegalStateException("Unavailable in lockdown mode"); 2850 } 2851 } 2852 2853 public void supplyMessenger(int networkType, Messenger messenger) { 2854 enforceConnectivityInternalPermission(); 2855 2856 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 2857 mNetTrackers[networkType].supplyMessenger(messenger); 2858 } 2859 } 2860 2861 public int findConnectionTypeForIface(String iface) { 2862 enforceConnectivityInternalPermission(); 2863 2864 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 2865 2866 synchronized(mNetworkForNetId) { 2867 for (int i = 0; i < mNetworkForNetId.size(); i++) { 2868 NetworkAgentInfo nai = mNetworkForNetId.valueAt(i); 2869 LinkProperties lp = nai.linkProperties; 2870 if (lp != null && iface.equals(lp.getInterfaceName()) && nai.networkInfo != null) { 2871 return nai.networkInfo.getType(); 2872 } 2873 } 2874 } 2875 return ConnectivityManager.TYPE_NONE; 2876 } 2877 2878 /** 2879 * Have mobile data fail fast if enabled. 2880 * 2881 * @param enabled DctConstants.ENABLED/DISABLED 2882 */ 2883 private void setEnableFailFastMobileData(int enabled) { 2884 int tag; 2885 2886 if (enabled == DctConstants.ENABLED) { 2887 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 2888 } else { 2889 tag = mEnableFailFastMobileDataTag.get(); 2890 } 2891 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 2892 enabled)); 2893 } 2894 2895 private boolean isMobileDataStateTrackerReady() { 2896 MobileDataStateTracker mdst = 2897 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 2898 return (mdst != null) && (mdst.isReady()); 2899 } 2900 2901 /** 2902 * The ResultReceiver resultCode for checkMobileProvisioning (CMP_RESULT_CODE) 2903 */ 2904 2905 /** 2906 * No connection was possible to the network. 2907 * This is NOT a warm sim. 2908 */ 2909 private static final int CMP_RESULT_CODE_NO_CONNECTION = 0; 2910 2911 /** 2912 * A connection was made to the internet, all is well. 2913 * This is NOT a warm sim. 2914 */ 2915 private static final int CMP_RESULT_CODE_CONNECTABLE = 1; 2916 2917 /** 2918 * A connection was made but no dns server was available to resolve a name to address. 2919 * This is NOT a warm sim since provisioning network is supported. 2920 */ 2921 private static final int CMP_RESULT_CODE_NO_DNS = 2; 2922 2923 /** 2924 * A connection was made but could not open a TCP connection. 2925 * This is NOT a warm sim since provisioning network is supported. 2926 */ 2927 private static final int CMP_RESULT_CODE_NO_TCP_CONNECTION = 3; 2928 2929 /** 2930 * A connection was made but there was a redirection, we appear to be in walled garden. 2931 * This is an indication of a warm sim on a mobile network such as T-Mobile. 2932 */ 2933 private static final int CMP_RESULT_CODE_REDIRECTED = 4; 2934 2935 /** 2936 * The mobile network is a provisioning network. 2937 * This is an indication of a warm sim on a mobile network such as AT&T. 2938 */ 2939 private static final int CMP_RESULT_CODE_PROVISIONING_NETWORK = 5; 2940 2941 /** 2942 * The mobile network is provisioning 2943 */ 2944 private static final int CMP_RESULT_CODE_IS_PROVISIONING = 6; 2945 2946 private AtomicBoolean mIsProvisioningNetwork = new AtomicBoolean(false); 2947 private AtomicBoolean mIsStartingProvisioning = new AtomicBoolean(false); 2948 2949 private AtomicBoolean mIsCheckingMobileProvisioning = new AtomicBoolean(false); 2950 2951 @Override 2952 public int checkMobileProvisioning(int suggestedTimeOutMs) { 2953 int timeOutMs = -1; 2954 if (DBG) log("checkMobileProvisioning: E suggestedTimeOutMs=" + suggestedTimeOutMs); 2955 enforceConnectivityInternalPermission(); 2956 2957 final long token = Binder.clearCallingIdentity(); 2958 try { 2959 timeOutMs = suggestedTimeOutMs; 2960 if (suggestedTimeOutMs > CheckMp.MAX_TIMEOUT_MS) { 2961 timeOutMs = CheckMp.MAX_TIMEOUT_MS; 2962 } 2963 2964 // Check that mobile networks are supported 2965 if (!isNetworkSupported(ConnectivityManager.TYPE_MOBILE) 2966 || !isNetworkSupported(ConnectivityManager.TYPE_MOBILE_HIPRI)) { 2967 if (DBG) log("checkMobileProvisioning: X no mobile network"); 2968 return timeOutMs; 2969 } 2970 2971 // If we're already checking don't do it again 2972 // TODO: Add a queue of results... 2973 if (mIsCheckingMobileProvisioning.getAndSet(true)) { 2974 if (DBG) log("checkMobileProvisioning: X already checking ignore for the moment"); 2975 return timeOutMs; 2976 } 2977 2978 // Start off with mobile notification off 2979 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 2980 2981 CheckMp checkMp = new CheckMp(mContext, this); 2982 CheckMp.CallBack cb = new CheckMp.CallBack() { 2983 @Override 2984 void onComplete(Integer result) { 2985 if (DBG) log("CheckMp.onComplete: result=" + result); 2986 NetworkInfo ni = 2987 mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI].getNetworkInfo(); 2988 switch(result) { 2989 case CMP_RESULT_CODE_CONNECTABLE: 2990 case CMP_RESULT_CODE_NO_CONNECTION: 2991 case CMP_RESULT_CODE_NO_DNS: 2992 case CMP_RESULT_CODE_NO_TCP_CONNECTION: { 2993 if (DBG) log("CheckMp.onComplete: ignore, connected or no connection"); 2994 break; 2995 } 2996 case CMP_RESULT_CODE_REDIRECTED: { 2997 if (DBG) log("CheckMp.onComplete: warm sim"); 2998 String url = getMobileProvisioningUrl(); 2999 if (TextUtils.isEmpty(url)) { 3000 url = getMobileRedirectedProvisioningUrl(); 3001 } 3002 if (TextUtils.isEmpty(url) == false) { 3003 if (DBG) log("CheckMp.onComplete: warm (redirected), url=" + url); 3004 setProvNotificationVisible(true, 3005 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 3006 url); 3007 } else { 3008 if (DBG) log("CheckMp.onComplete: warm (redirected), no url"); 3009 } 3010 break; 3011 } 3012 case CMP_RESULT_CODE_PROVISIONING_NETWORK: { 3013 String url = getMobileProvisioningUrl(); 3014 if (TextUtils.isEmpty(url) == false) { 3015 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), url=" + url); 3016 setProvNotificationVisible(true, 3017 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 3018 url); 3019 // Mark that we've got a provisioning network and 3020 // Disable Mobile Data until user actually starts provisioning. 3021 mIsProvisioningNetwork.set(true); 3022 MobileDataStateTracker mdst = (MobileDataStateTracker) 3023 mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3024 3025 // Disable radio until user starts provisioning 3026 mdst.setRadio(false); 3027 } else { 3028 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), no url"); 3029 } 3030 break; 3031 } 3032 case CMP_RESULT_CODE_IS_PROVISIONING: { 3033 // FIXME: Need to know when provisioning is done. Probably we can 3034 // check the completion status if successful we're done if we 3035 // "timedout" or still connected to provisioning APN turn off data? 3036 if (DBG) log("CheckMp.onComplete: provisioning started"); 3037 mIsStartingProvisioning.set(false); 3038 break; 3039 } 3040 default: { 3041 loge("CheckMp.onComplete: ignore unexpected result=" + result); 3042 break; 3043 } 3044 } 3045 mIsCheckingMobileProvisioning.set(false); 3046 } 3047 }; 3048 CheckMp.Params params = 3049 new CheckMp.Params(checkMp.getDefaultUrl(), timeOutMs, cb); 3050 if (DBG) log("checkMobileProvisioning: params=" + params); 3051 // TODO: Reenable when calls to the now defunct 3052 // MobileDataStateTracker.isProvisioningNetwork() are removed. 3053 // This code should be moved to the Telephony code. 3054 // checkMp.execute(params); 3055 } finally { 3056 Binder.restoreCallingIdentity(token); 3057 if (DBG) log("checkMobileProvisioning: X"); 3058 } 3059 return timeOutMs; 3060 } 3061 3062 static class CheckMp extends 3063 AsyncTask<CheckMp.Params, Void, Integer> { 3064 private static final String CHECKMP_TAG = "CheckMp"; 3065 3066 // adb shell setprop persist.checkmp.testfailures 1 to enable testing failures 3067 private static boolean mTestingFailures; 3068 3069 // Choosing 4 loops as half of them will use HTTPS and the other half HTTP 3070 private static final int MAX_LOOPS = 4; 3071 3072 // Number of milli-seconds to complete all of the retires 3073 public static final int MAX_TIMEOUT_MS = 60000; 3074 3075 // The socket should retry only 5 seconds, the default is longer 3076 private static final int SOCKET_TIMEOUT_MS = 5000; 3077 3078 // Sleep time for network errors 3079 private static final int NET_ERROR_SLEEP_SEC = 3; 3080 3081 // Sleep time for network route establishment 3082 private static final int NET_ROUTE_ESTABLISHMENT_SLEEP_SEC = 3; 3083 3084 // Short sleep time for polling :( 3085 private static final int POLLING_SLEEP_SEC = 1; 3086 3087 private Context mContext; 3088 private ConnectivityService mCs; 3089 private TelephonyManager mTm; 3090 private Params mParams; 3091 3092 /** 3093 * Parameters for AsyncTask.execute 3094 */ 3095 static class Params { 3096 private String mUrl; 3097 private long mTimeOutMs; 3098 private CallBack mCb; 3099 3100 Params(String url, long timeOutMs, CallBack cb) { 3101 mUrl = url; 3102 mTimeOutMs = timeOutMs; 3103 mCb = cb; 3104 } 3105 3106 @Override 3107 public String toString() { 3108 return "{" + " url=" + mUrl + " mTimeOutMs=" + mTimeOutMs + " mCb=" + mCb + "}"; 3109 } 3110 } 3111 3112 // As explained to me by Brian Carlstrom and Kenny Root, Certificates can be 3113 // issued by name or ip address, for Google its by name so when we construct 3114 // this HostnameVerifier we'll pass the original Uri and use it to verify 3115 // the host. If the host name in the original uril fails we'll test the 3116 // hostname parameter just incase things change. 3117 static class CheckMpHostnameVerifier implements HostnameVerifier { 3118 Uri mOrgUri; 3119 3120 CheckMpHostnameVerifier(Uri orgUri) { 3121 mOrgUri = orgUri; 3122 } 3123 3124 @Override 3125 public boolean verify(String hostname, SSLSession session) { 3126 HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier(); 3127 String orgUriHost = mOrgUri.getHost(); 3128 boolean retVal = hv.verify(orgUriHost, session) || hv.verify(hostname, session); 3129 if (DBG) { 3130 log("isMobileOk: hostnameVerify retVal=" + retVal + " hostname=" + hostname 3131 + " orgUriHost=" + orgUriHost); 3132 } 3133 return retVal; 3134 } 3135 } 3136 3137 /** 3138 * The call back object passed in Params. onComplete will be called 3139 * on the main thread. 3140 */ 3141 abstract static class CallBack { 3142 // Called on the main thread. 3143 abstract void onComplete(Integer result); 3144 } 3145 3146 public CheckMp(Context context, ConnectivityService cs) { 3147 if (Build.IS_DEBUGGABLE) { 3148 mTestingFailures = 3149 SystemProperties.getInt("persist.checkmp.testfailures", 0) == 1; 3150 } else { 3151 mTestingFailures = false; 3152 } 3153 3154 mContext = context; 3155 mCs = cs; 3156 3157 // Setup access to TelephonyService we'll be using. 3158 mTm = (TelephonyManager) mContext.getSystemService( 3159 Context.TELEPHONY_SERVICE); 3160 } 3161 3162 /** 3163 * Get the default url to use for the test. 3164 */ 3165 public String getDefaultUrl() { 3166 // See http://go/clientsdns for usage approval 3167 String server = Settings.Global.getString(mContext.getContentResolver(), 3168 Settings.Global.CAPTIVE_PORTAL_SERVER); 3169 if (server == null) { 3170 server = "clients3.google.com"; 3171 } 3172 return "http://" + server + "/generate_204"; 3173 } 3174 3175 /** 3176 * Detect if its possible to connect to the http url. DNS based detection techniques 3177 * do not work at all hotspots. The best way to check is to perform a request to 3178 * a known address that fetches the data we expect. 3179 */ 3180 private synchronized Integer isMobileOk(Params params) { 3181 Integer result = CMP_RESULT_CODE_NO_CONNECTION; 3182 Uri orgUri = Uri.parse(params.mUrl); 3183 Random rand = new Random(); 3184 mParams = params; 3185 3186 if (mCs.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false) { 3187 result = CMP_RESULT_CODE_NO_CONNECTION; 3188 log("isMobileOk: X not mobile capable result=" + result); 3189 return result; 3190 } 3191 3192 if (mCs.mIsStartingProvisioning.get()) { 3193 result = CMP_RESULT_CODE_IS_PROVISIONING; 3194 log("isMobileOk: X is provisioning result=" + result); 3195 return result; 3196 } 3197 3198 // See if we've already determined we've got a provisioning connection, 3199 // if so we don't need to do anything active. 3200 MobileDataStateTracker mdstDefault = (MobileDataStateTracker) 3201 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3202 boolean isDefaultProvisioning = mdstDefault.isProvisioningNetwork(); 3203 log("isMobileOk: isDefaultProvisioning=" + isDefaultProvisioning); 3204 3205 MobileDataStateTracker mdstHipri = (MobileDataStateTracker) 3206 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3207 boolean isHipriProvisioning = mdstHipri.isProvisioningNetwork(); 3208 log("isMobileOk: isHipriProvisioning=" + isHipriProvisioning); 3209 3210 if (isDefaultProvisioning || isHipriProvisioning) { 3211 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3212 log("isMobileOk: X default || hipri is provisioning result=" + result); 3213 return result; 3214 } 3215 3216 try { 3217 // Continue trying to connect until time has run out 3218 long endTime = SystemClock.elapsedRealtime() + params.mTimeOutMs; 3219 3220 if (!mCs.isMobileDataStateTrackerReady()) { 3221 // Wait for MobileDataStateTracker to be ready. 3222 if (DBG) log("isMobileOk: mdst is not ready"); 3223 while(SystemClock.elapsedRealtime() < endTime) { 3224 if (mCs.isMobileDataStateTrackerReady()) { 3225 // Enable fail fast as we'll do retries here and use a 3226 // hipri connection so the default connection stays active. 3227 if (DBG) log("isMobileOk: mdst ready, enable fail fast of mobile data"); 3228 mCs.setEnableFailFastMobileData(DctConstants.ENABLED); 3229 break; 3230 } 3231 sleep(POLLING_SLEEP_SEC); 3232 } 3233 } 3234 3235 log("isMobileOk: start hipri url=" + params.mUrl); 3236 3237 // First wait until we can start using hipri 3238 Binder binder = new Binder(); 3239/* 3240 while(SystemClock.elapsedRealtime() < endTime) { 3241 int ret = mCs.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3242 Phone.FEATURE_ENABLE_HIPRI, binder); 3243 if ((ret == PhoneConstants.APN_ALREADY_ACTIVE) 3244 || (ret == PhoneConstants.APN_REQUEST_STARTED)) { 3245 log("isMobileOk: hipri started"); 3246 break; 3247 } 3248 if (VDBG) log("isMobileOk: hipri not started yet"); 3249 result = CMP_RESULT_CODE_NO_CONNECTION; 3250 sleep(POLLING_SLEEP_SEC); 3251 } 3252*/ 3253 // Continue trying to connect until time has run out 3254 while(SystemClock.elapsedRealtime() < endTime) { 3255 try { 3256 // Wait for hipri to connect. 3257 // TODO: Don't poll and handle situation where hipri fails 3258 // because default is retrying. See b/9569540 3259 NetworkInfo.State state = mCs 3260 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3261 if (state != NetworkInfo.State.CONNECTED) { 3262 if (true/*VDBG*/) { 3263 log("isMobileOk: not connected ni=" + 3264 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3265 } 3266 sleep(POLLING_SLEEP_SEC); 3267 result = CMP_RESULT_CODE_NO_CONNECTION; 3268 continue; 3269 } 3270 3271 // Hipri has started check if this is a provisioning url 3272 MobileDataStateTracker mdst = (MobileDataStateTracker) 3273 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3274 if (mdst.isProvisioningNetwork()) { 3275 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3276 if (DBG) log("isMobileOk: X isProvisioningNetwork result=" + result); 3277 return result; 3278 } else { 3279 if (DBG) log("isMobileOk: isProvisioningNetwork is false, continue"); 3280 } 3281 3282 // Get of the addresses associated with the url host. We need to use the 3283 // address otherwise HttpURLConnection object will use the name to get 3284 // the addresses and will try every address but that will bypass the 3285 // route to host we setup and the connection could succeed as the default 3286 // interface might be connected to the internet via wifi or other interface. 3287 InetAddress[] addresses; 3288 try { 3289 addresses = InetAddress.getAllByName(orgUri.getHost()); 3290 } catch (UnknownHostException e) { 3291 result = CMP_RESULT_CODE_NO_DNS; 3292 log("isMobileOk: X UnknownHostException result=" + result); 3293 return result; 3294 } 3295 log("isMobileOk: addresses=" + inetAddressesToString(addresses)); 3296 3297 // Get the type of addresses supported by this link 3298 LinkProperties lp = mCs.getLinkPropertiesForTypeInternal( 3299 ConnectivityManager.TYPE_MOBILE_HIPRI); 3300 boolean linkHasIpv4 = lp.hasIPv4Address(); 3301 boolean linkHasIpv6 = lp.hasGlobalIPv6Address(); 3302 log("isMobileOk: linkHasIpv4=" + linkHasIpv4 3303 + " linkHasIpv6=" + linkHasIpv6); 3304 3305 final ArrayList<InetAddress> validAddresses = 3306 new ArrayList<InetAddress>(addresses.length); 3307 3308 for (InetAddress addr : addresses) { 3309 if (((addr instanceof Inet4Address) && linkHasIpv4) || 3310 ((addr instanceof Inet6Address) && linkHasIpv6)) { 3311 validAddresses.add(addr); 3312 } 3313 } 3314 3315 if (validAddresses.size() == 0) { 3316 return CMP_RESULT_CODE_NO_CONNECTION; 3317 } 3318 3319 int addrTried = 0; 3320 while (true) { 3321 // Loop through at most MAX_LOOPS valid addresses or until 3322 // we run out of time 3323 if (addrTried++ >= MAX_LOOPS) { 3324 log("isMobileOk: too many loops tried - giving up"); 3325 break; 3326 } 3327 if (SystemClock.elapsedRealtime() >= endTime) { 3328 log("isMobileOk: spend too much time - giving up"); 3329 break; 3330 } 3331 3332 InetAddress hostAddr = validAddresses.get(rand.nextInt( 3333 validAddresses.size())); 3334 3335 // Make a route to host so we check the specific interface. 3336 if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI, 3337 hostAddr.getAddress())) { 3338 // Wait a short time to be sure the route is established ?? 3339 log("isMobileOk:" 3340 + " wait to establish route to hostAddr=" + hostAddr); 3341 sleep(NET_ROUTE_ESTABLISHMENT_SLEEP_SEC); 3342 } else { 3343 log("isMobileOk:" 3344 + " could not establish route to hostAddr=" + hostAddr); 3345 // Wait a short time before the next attempt 3346 sleep(NET_ERROR_SLEEP_SEC); 3347 continue; 3348 } 3349 3350 // Rewrite the url to have numeric address to use the specific route 3351 // using http for half the attempts and https for the other half. 3352 // Doing https first and http second as on a redirected walled garden 3353 // such as t-mobile uses we get a SocketTimeoutException: "SSL 3354 // handshake timed out" which we declare as 3355 // CMP_RESULT_CODE_NO_TCP_CONNECTION. We could change this, but by 3356 // having http second we will be using logic used for some time. 3357 URL newUrl; 3358 String scheme = (addrTried <= (MAX_LOOPS/2)) ? "https" : "http"; 3359 newUrl = new URL(scheme, hostAddr.getHostAddress(), 3360 orgUri.getPath()); 3361 log("isMobileOk: newUrl=" + newUrl); 3362 3363 HttpURLConnection urlConn = null; 3364 try { 3365 // Open the connection set the request headers and get the response 3366 urlConn = (HttpURLConnection)newUrl.openConnection( 3367 java.net.Proxy.NO_PROXY); 3368 if (scheme.equals("https")) { 3369 ((HttpsURLConnection)urlConn).setHostnameVerifier( 3370 new CheckMpHostnameVerifier(orgUri)); 3371 } 3372 urlConn.setInstanceFollowRedirects(false); 3373 urlConn.setConnectTimeout(SOCKET_TIMEOUT_MS); 3374 urlConn.setReadTimeout(SOCKET_TIMEOUT_MS); 3375 urlConn.setUseCaches(false); 3376 urlConn.setAllowUserInteraction(false); 3377 // Set the "Connection" to "Close" as by default "Keep-Alive" 3378 // is used which is useless in this case. 3379 urlConn.setRequestProperty("Connection", "close"); 3380 int responseCode = urlConn.getResponseCode(); 3381 3382 // For debug display the headers 3383 Map<String, List<String>> headers = urlConn.getHeaderFields(); 3384 log("isMobileOk: headers=" + headers); 3385 3386 // Close the connection 3387 urlConn.disconnect(); 3388 urlConn = null; 3389 3390 if (mTestingFailures) { 3391 // Pretend no connection, this tests using http and https 3392 result = CMP_RESULT_CODE_NO_CONNECTION; 3393 log("isMobileOk: TESTING_FAILURES, pretend no connction"); 3394 continue; 3395 } 3396 3397 if (responseCode == 204) { 3398 // Return 3399 result = CMP_RESULT_CODE_CONNECTABLE; 3400 log("isMobileOk: X got expected responseCode=" + responseCode 3401 + " result=" + result); 3402 return result; 3403 } else { 3404 // Retry to be sure this was redirected, we've gotten 3405 // occasions where a server returned 200 even though 3406 // the device didn't have a "warm" sim. 3407 log("isMobileOk: not expected responseCode=" + responseCode); 3408 // TODO - it would be nice in the single-address case to do 3409 // another DNS resolve here, but flushing the cache is a bit 3410 // heavy-handed. 3411 result = CMP_RESULT_CODE_REDIRECTED; 3412 } 3413 } catch (Exception e) { 3414 log("isMobileOk: HttpURLConnection Exception" + e); 3415 result = CMP_RESULT_CODE_NO_TCP_CONNECTION; 3416 if (urlConn != null) { 3417 urlConn.disconnect(); 3418 urlConn = null; 3419 } 3420 sleep(NET_ERROR_SLEEP_SEC); 3421 continue; 3422 } 3423 } 3424 log("isMobileOk: X loops|timed out result=" + result); 3425 return result; 3426 } catch (Exception e) { 3427 log("isMobileOk: Exception e=" + e); 3428 continue; 3429 } 3430 } 3431 log("isMobileOk: timed out"); 3432 } finally { 3433 log("isMobileOk: F stop hipri"); 3434 mCs.setEnableFailFastMobileData(DctConstants.DISABLED); 3435// mCs.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3436// Phone.FEATURE_ENABLE_HIPRI); 3437 3438 // Wait for hipri to disconnect. 3439 long endTime = SystemClock.elapsedRealtime() + 5000; 3440 3441 while(SystemClock.elapsedRealtime() < endTime) { 3442 NetworkInfo.State state = mCs 3443 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3444 if (state != NetworkInfo.State.DISCONNECTED) { 3445 if (VDBG) { 3446 log("isMobileOk: connected ni=" + 3447 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3448 } 3449 sleep(POLLING_SLEEP_SEC); 3450 continue; 3451 } 3452 } 3453 3454 log("isMobileOk: X result=" + result); 3455 } 3456 return result; 3457 } 3458 3459 @Override 3460 protected Integer doInBackground(Params... params) { 3461 return isMobileOk(params[0]); 3462 } 3463 3464 @Override 3465 protected void onPostExecute(Integer result) { 3466 log("onPostExecute: result=" + result); 3467 if ((mParams != null) && (mParams.mCb != null)) { 3468 mParams.mCb.onComplete(result); 3469 } 3470 } 3471 3472 private String inetAddressesToString(InetAddress[] addresses) { 3473 StringBuffer sb = new StringBuffer(); 3474 boolean firstTime = true; 3475 for(InetAddress addr : addresses) { 3476 if (firstTime) { 3477 firstTime = false; 3478 } else { 3479 sb.append(","); 3480 } 3481 sb.append(addr); 3482 } 3483 return sb.toString(); 3484 } 3485 3486 private void printNetworkInfo() { 3487 boolean hasIccCard = mTm.hasIccCard(); 3488 int simState = mTm.getSimState(); 3489 log("hasIccCard=" + hasIccCard 3490 + " simState=" + simState); 3491 NetworkInfo[] ni = mCs.getAllNetworkInfo(); 3492 if (ni != null) { 3493 log("ni.length=" + ni.length); 3494 for (NetworkInfo netInfo: ni) { 3495 log("netInfo=" + netInfo.toString()); 3496 } 3497 } else { 3498 log("no network info ni=null"); 3499 } 3500 } 3501 3502 /** 3503 * Sleep for a few seconds then return. 3504 * @param seconds 3505 */ 3506 private static void sleep(int seconds) { 3507 long stopTime = System.nanoTime() + (seconds * 1000000000); 3508 long sleepTime; 3509 while ((sleepTime = stopTime - System.nanoTime()) > 0) { 3510 try { 3511 Thread.sleep(sleepTime / 1000000); 3512 } catch (InterruptedException ignored) { 3513 } 3514 } 3515 } 3516 3517 private static void log(String s) { 3518 Slog.d(ConnectivityService.TAG, "[" + CHECKMP_TAG + "] " + s); 3519 } 3520 } 3521 3522 // TODO: Move to ConnectivityManager and make public? 3523 private static final String CONNECTED_TO_PROVISIONING_NETWORK_ACTION = 3524 "com.android.server.connectivityservice.CONNECTED_TO_PROVISIONING_NETWORK_ACTION"; 3525 3526 private BroadcastReceiver mProvisioningReceiver = new BroadcastReceiver() { 3527 @Override 3528 public void onReceive(Context context, Intent intent) { 3529 if (intent.getAction().equals(CONNECTED_TO_PROVISIONING_NETWORK_ACTION)) { 3530 handleMobileProvisioningAction(intent.getStringExtra("EXTRA_URL")); 3531 } 3532 } 3533 }; 3534 3535 private void handleMobileProvisioningAction(String url) { 3536 // Mark notification as not visible 3537 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3538 3539 // Check airplane mode 3540 boolean isAirplaneModeOn = Settings.System.getInt(mContext.getContentResolver(), 3541 Settings.Global.AIRPLANE_MODE_ON, 0) == 1; 3542 // If provisioning network and not in airplane mode handle as a special case, 3543 // otherwise launch browser with the intent directly. 3544 if (mIsProvisioningNetwork.get() && !isAirplaneModeOn) { 3545 if (DBG) log("handleMobileProvisioningAction: on prov network enable then launch"); 3546 mIsProvisioningNetwork.set(false); 3547// mIsStartingProvisioning.set(true); 3548// MobileDataStateTracker mdst = (MobileDataStateTracker) 3549// mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3550 // Radio was disabled on CMP_RESULT_CODE_PROVISIONING_NETWORK, enable it here 3551// mdst.setRadio(true); 3552// mdst.setEnableFailFastMobileData(DctConstants.ENABLED); 3553// mdst.enableMobileProvisioning(url); 3554 } else { 3555 if (DBG) log("handleMobileProvisioningAction: not prov network"); 3556 mIsProvisioningNetwork.set(false); 3557 // Check for apps that can handle provisioning first 3558 Intent provisioningIntent = new Intent(TelephonyIntents.ACTION_CARRIER_SETUP); 3559 List<String> carrierPackages = 3560 mTelephonyManager.getCarrierPackageNamesForBroadcastIntent(provisioningIntent); 3561 if (carrierPackages != null && !carrierPackages.isEmpty()) { 3562 if (carrierPackages.size() != 1) { 3563 if (DBG) log("Multiple matching carrier apps found, launching the first."); 3564 } 3565 provisioningIntent.setPackage(carrierPackages.get(0)); 3566 provisioningIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3567 Intent.FLAG_ACTIVITY_NEW_TASK); 3568 mContext.startActivity(provisioningIntent); 3569 } else { 3570 // If no apps exist, use standard URL ACTION_VIEW method 3571 Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, 3572 Intent.CATEGORY_APP_BROWSER); 3573 newIntent.setData(Uri.parse(url)); 3574 newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3575 Intent.FLAG_ACTIVITY_NEW_TASK); 3576 try { 3577 mContext.startActivity(newIntent); 3578 } catch (ActivityNotFoundException e) { 3579 loge("handleMobileProvisioningAction: startActivity failed" + e); 3580 } 3581 } 3582 } 3583 } 3584 3585 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 3586 private volatile boolean mIsNotificationVisible = false; 3587 3588 private void setProvNotificationVisible(boolean visible, int networkType, String extraInfo, 3589 String url) { 3590 if (DBG) { 3591 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 3592 + " extraInfo=" + extraInfo + " url=" + url); 3593 } 3594 Intent intent = null; 3595 PendingIntent pendingIntent = null; 3596 if (visible) { 3597 switch (networkType) { 3598 case ConnectivityManager.TYPE_WIFI: 3599 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3600 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3601 Intent.FLAG_ACTIVITY_NEW_TASK); 3602 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3603 break; 3604 case ConnectivityManager.TYPE_MOBILE: 3605 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3606 intent = new Intent(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 3607 intent.putExtra("EXTRA_URL", url); 3608 intent.setFlags(0); 3609 pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 3610 break; 3611 default: 3612 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3613 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3614 Intent.FLAG_ACTIVITY_NEW_TASK); 3615 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3616 break; 3617 } 3618 } 3619 // Concatenate the range of types onto the range of NetIDs. 3620 int id = MAX_NET_ID + 1 + (networkType - ConnectivityManager.TYPE_NONE); 3621 setProvNotificationVisibleIntent(visible, id, networkType, extraInfo, pendingIntent); 3622 } 3623 3624 /** 3625 * Show or hide network provisioning notificaitons. 3626 * 3627 * @param id an identifier that uniquely identifies this notification. This must match 3628 * between show and hide calls. We use the NetID value but for legacy callers 3629 * we concatenate the range of types with the range of NetIDs. 3630 */ 3631 private void setProvNotificationVisibleIntent(boolean visible, int id, int networkType, 3632 String extraInfo, PendingIntent intent) { 3633 if (DBG) { 3634 log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + 3635 networkType + " extraInfo=" + extraInfo); 3636 } 3637 3638 Resources r = Resources.getSystem(); 3639 NotificationManager notificationManager = (NotificationManager) mContext 3640 .getSystemService(Context.NOTIFICATION_SERVICE); 3641 3642 if (visible) { 3643 CharSequence title; 3644 CharSequence details; 3645 int icon; 3646 Notification notification = new Notification(); 3647 switch (networkType) { 3648 case ConnectivityManager.TYPE_WIFI: 3649 title = r.getString(R.string.wifi_available_sign_in, 0); 3650 details = r.getString(R.string.network_available_sign_in_detailed, 3651 extraInfo); 3652 icon = R.drawable.stat_notify_wifi_in_range; 3653 break; 3654 case ConnectivityManager.TYPE_MOBILE: 3655 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3656 title = r.getString(R.string.network_available_sign_in, 0); 3657 // TODO: Change this to pull from NetworkInfo once a printable 3658 // name has been added to it 3659 details = mTelephonyManager.getNetworkOperatorName(); 3660 icon = R.drawable.stat_notify_rssi_in_range; 3661 break; 3662 default: 3663 title = r.getString(R.string.network_available_sign_in, 0); 3664 details = r.getString(R.string.network_available_sign_in_detailed, 3665 extraInfo); 3666 icon = R.drawable.stat_notify_rssi_in_range; 3667 break; 3668 } 3669 3670 notification.when = 0; 3671 notification.icon = icon; 3672 notification.flags = Notification.FLAG_AUTO_CANCEL; 3673 notification.tickerText = title; 3674 notification.color = mContext.getResources().getColor( 3675 com.android.internal.R.color.system_notification_accent_color); 3676 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 3677 notification.contentIntent = intent; 3678 3679 try { 3680 notificationManager.notify(NOTIFICATION_ID, id, notification); 3681 } catch (NullPointerException npe) { 3682 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 3683 npe.printStackTrace(); 3684 } 3685 } else { 3686 try { 3687 notificationManager.cancel(NOTIFICATION_ID, id); 3688 } catch (NullPointerException npe) { 3689 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 3690 npe.printStackTrace(); 3691 } 3692 } 3693 mIsNotificationVisible = visible; 3694 } 3695 3696 /** Location to an updatable file listing carrier provisioning urls. 3697 * An example: 3698 * 3699 * <?xml version="1.0" encoding="utf-8"?> 3700 * <provisioningUrls> 3701 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 3702 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 3703 * </provisioningUrls> 3704 */ 3705 private static final String PROVISIONING_URL_PATH = 3706 "/data/misc/radio/provisioning_urls.xml"; 3707 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 3708 3709 /** XML tag for root element. */ 3710 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 3711 /** XML tag for individual url */ 3712 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 3713 /** XML tag for redirected url */ 3714 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 3715 /** XML attribute for mcc */ 3716 private static final String ATTR_MCC = "mcc"; 3717 /** XML attribute for mnc */ 3718 private static final String ATTR_MNC = "mnc"; 3719 3720 private static final int REDIRECTED_PROVISIONING = 1; 3721 private static final int PROVISIONING = 2; 3722 3723 private String getProvisioningUrlBaseFromFile(int type) { 3724 FileReader fileReader = null; 3725 XmlPullParser parser = null; 3726 Configuration config = mContext.getResources().getConfiguration(); 3727 String tagType; 3728 3729 switch (type) { 3730 case PROVISIONING: 3731 tagType = TAG_PROVISIONING_URL; 3732 break; 3733 case REDIRECTED_PROVISIONING: 3734 tagType = TAG_REDIRECTED_URL; 3735 break; 3736 default: 3737 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 3738 type); 3739 } 3740 3741 try { 3742 fileReader = new FileReader(mProvisioningUrlFile); 3743 parser = Xml.newPullParser(); 3744 parser.setInput(fileReader); 3745 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 3746 3747 while (true) { 3748 XmlUtils.nextElement(parser); 3749 3750 String element = parser.getName(); 3751 if (element == null) break; 3752 3753 if (element.equals(tagType)) { 3754 String mcc = parser.getAttributeValue(null, ATTR_MCC); 3755 try { 3756 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 3757 String mnc = parser.getAttributeValue(null, ATTR_MNC); 3758 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 3759 parser.next(); 3760 if (parser.getEventType() == XmlPullParser.TEXT) { 3761 return parser.getText(); 3762 } 3763 } 3764 } 3765 } catch (NumberFormatException e) { 3766 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 3767 } 3768 } 3769 } 3770 return null; 3771 } catch (FileNotFoundException e) { 3772 loge("Carrier Provisioning Urls file not found"); 3773 } catch (XmlPullParserException e) { 3774 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 3775 } catch (IOException e) { 3776 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 3777 } finally { 3778 if (fileReader != null) { 3779 try { 3780 fileReader.close(); 3781 } catch (IOException e) {} 3782 } 3783 } 3784 return null; 3785 } 3786 3787 @Override 3788 public String getMobileRedirectedProvisioningUrl() { 3789 enforceConnectivityInternalPermission(); 3790 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 3791 if (TextUtils.isEmpty(url)) { 3792 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 3793 } 3794 return url; 3795 } 3796 3797 @Override 3798 public String getMobileProvisioningUrl() { 3799 enforceConnectivityInternalPermission(); 3800 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 3801 if (TextUtils.isEmpty(url)) { 3802 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 3803 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 3804 } else { 3805 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 3806 } 3807 // populate the iccid, imei and phone number in the provisioning url. 3808 if (!TextUtils.isEmpty(url)) { 3809 String phoneNumber = mTelephonyManager.getLine1Number(); 3810 if (TextUtils.isEmpty(phoneNumber)) { 3811 phoneNumber = "0000000000"; 3812 } 3813 url = String.format(url, 3814 mTelephonyManager.getSimSerialNumber() /* ICCID */, 3815 mTelephonyManager.getDeviceId() /* IMEI */, 3816 phoneNumber /* Phone numer */); 3817 } 3818 3819 return url; 3820 } 3821 3822 @Override 3823 public void setProvisioningNotificationVisible(boolean visible, int networkType, 3824 String extraInfo, String url) { 3825 enforceConnectivityInternalPermission(); 3826 setProvNotificationVisible(visible, networkType, extraInfo, url); 3827 } 3828 3829 @Override 3830 public void setAirplaneMode(boolean enable) { 3831 enforceConnectivityInternalPermission(); 3832 final long ident = Binder.clearCallingIdentity(); 3833 try { 3834 final ContentResolver cr = mContext.getContentResolver(); 3835 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 3836 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 3837 intent.putExtra("state", enable); 3838 mContext.sendBroadcast(intent); 3839 } finally { 3840 Binder.restoreCallingIdentity(ident); 3841 } 3842 } 3843 3844 private void onUserStart(int userId) { 3845 synchronized(mVpns) { 3846 Vpn userVpn = mVpns.get(userId); 3847 if (userVpn != null) { 3848 loge("Starting user already has a VPN"); 3849 return; 3850 } 3851 userVpn = new Vpn(mHandler.getLooper(), mContext, mNetd, this, userId); 3852 mVpns.put(userId, userVpn); 3853 } 3854 } 3855 3856 private void onUserStop(int userId) { 3857 synchronized(mVpns) { 3858 Vpn userVpn = mVpns.get(userId); 3859 if (userVpn == null) { 3860 loge("Stopping user has no VPN"); 3861 return; 3862 } 3863 mVpns.delete(userId); 3864 } 3865 } 3866 3867 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 3868 @Override 3869 public void onReceive(Context context, Intent intent) { 3870 final String action = intent.getAction(); 3871 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3872 if (userId == UserHandle.USER_NULL) return; 3873 3874 if (Intent.ACTION_USER_STARTING.equals(action)) { 3875 onUserStart(userId); 3876 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 3877 onUserStop(userId); 3878 } 3879 } 3880 }; 3881 3882 @Override 3883 public LinkQualityInfo getLinkQualityInfo(int networkType) { 3884 enforceAccessPermission(); 3885 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 3886 return mNetTrackers[networkType].getLinkQualityInfo(); 3887 } else { 3888 return null; 3889 } 3890 } 3891 3892 @Override 3893 public LinkQualityInfo getActiveLinkQualityInfo() { 3894 enforceAccessPermission(); 3895 if (isNetworkTypeValid(mActiveDefaultNetwork) && 3896 mNetTrackers[mActiveDefaultNetwork] != null) { 3897 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 3898 } else { 3899 return null; 3900 } 3901 } 3902 3903 @Override 3904 public LinkQualityInfo[] getAllLinkQualityInfo() { 3905 enforceAccessPermission(); 3906 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 3907 for (NetworkStateTracker tracker : mNetTrackers) { 3908 if (tracker != null) { 3909 LinkQualityInfo li = tracker.getLinkQualityInfo(); 3910 if (li != null) { 3911 result.add(li); 3912 } 3913 } 3914 } 3915 3916 return result.toArray(new LinkQualityInfo[result.size()]); 3917 } 3918 3919 /* Infrastructure for network sampling */ 3920 3921 private void handleNetworkSamplingTimeout() { 3922 3923 log("Sampling interval elapsed, updating statistics .."); 3924 3925 // initialize list of interfaces .. 3926 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 3927 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 3928 for (NetworkStateTracker tracker : mNetTrackers) { 3929 if (tracker != null) { 3930 String ifaceName = tracker.getNetworkInterfaceName(); 3931 if (ifaceName != null) { 3932 mapIfaceToSample.put(ifaceName, null); 3933 } 3934 } 3935 } 3936 3937 // Read samples for all interfaces 3938 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 3939 3940 // process samples for all networks 3941 for (NetworkStateTracker tracker : mNetTrackers) { 3942 if (tracker != null) { 3943 String ifaceName = tracker.getNetworkInterfaceName(); 3944 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 3945 if (ss != null) { 3946 // end the previous sampling cycle 3947 tracker.stopSampling(ss); 3948 // start a new sampling cycle .. 3949 tracker.startSampling(ss); 3950 } 3951 } 3952 } 3953 3954 log("Done."); 3955 3956 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 3957 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 3958 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 3959 3960 if (DBG) log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 3961 3962 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 3963 } 3964 3965 /** 3966 * Sets a network sampling alarm. 3967 */ 3968 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 3969 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 3970 int alarmType; 3971 if (Resources.getSystem().getBoolean( 3972 R.bool.config_networkSamplingWakesDevice)) { 3973 alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP; 3974 } else { 3975 alarmType = AlarmManager.ELAPSED_REALTIME; 3976 } 3977 mAlarmManager.set(alarmType, wakeupTime, intent); 3978 } 3979 3980 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 3981 new HashMap<Messenger, NetworkFactoryInfo>(); 3982 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 3983 new HashMap<NetworkRequest, NetworkRequestInfo>(); 3984 3985 private static class NetworkFactoryInfo { 3986 public final String name; 3987 public final Messenger messenger; 3988 public final AsyncChannel asyncChannel; 3989 3990 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 3991 this.name = name; 3992 this.messenger = messenger; 3993 this.asyncChannel = asyncChannel; 3994 } 3995 } 3996 3997 /** 3998 * Tracks info about the requester. 3999 * Also used to notice when the calling process dies so we can self-expire 4000 */ 4001 private class NetworkRequestInfo implements IBinder.DeathRecipient { 4002 static final boolean REQUEST = true; 4003 static final boolean LISTEN = false; 4004 4005 final NetworkRequest request; 4006 IBinder mBinder; 4007 final int mPid; 4008 final int mUid; 4009 final Messenger messenger; 4010 final boolean isRequest; 4011 4012 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 4013 super(); 4014 messenger = m; 4015 request = r; 4016 mBinder = binder; 4017 mPid = getCallingPid(); 4018 mUid = getCallingUid(); 4019 this.isRequest = isRequest; 4020 4021 try { 4022 mBinder.linkToDeath(this, 0); 4023 } catch (RemoteException e) { 4024 binderDied(); 4025 } 4026 } 4027 4028 void unlinkDeathRecipient() { 4029 mBinder.unlinkToDeath(this, 0); 4030 } 4031 4032 public void binderDied() { 4033 log("ConnectivityService NetworkRequestInfo binderDied(" + 4034 request + ", " + mBinder + ")"); 4035 releaseNetworkRequest(request); 4036 } 4037 4038 public String toString() { 4039 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 4040 mPid + " for " + request; 4041 } 4042 } 4043 4044 @Override 4045 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 4046 Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { 4047 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 4048 == false) { 4049 enforceConnectivityInternalPermission(); 4050 } else { 4051 enforceChangePermission(); 4052 } 4053 4054 networkCapabilities = new NetworkCapabilities(networkCapabilities); 4055 4056 // if UID is restricted, don't allow them to bring up metered APNs 4057 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED) 4058 == false) { 4059 final int uidRules; 4060 synchronized(mRulesLock) { 4061 uidRules = mUidRules.get(Binder.getCallingUid(), RULE_ALLOW_ALL); 4062 } 4063 if ((uidRules & RULE_REJECT_METERED) != 0) { 4064 // we could silently fail or we can filter the available nets to only give 4065 // them those they have access to. Chose the more useful 4066 networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 4067 } 4068 } 4069 4070 if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { 4071 throw new IllegalArgumentException("Bad timeout specified"); 4072 } 4073 NetworkRequest networkRequest = new NetworkRequest(networkCapabilities, legacyType, 4074 nextNetworkRequestId()); 4075 if (DBG) log("requestNetwork for " + networkRequest); 4076 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4077 NetworkRequestInfo.REQUEST); 4078 4079 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 4080 if (timeoutMs > 0) { 4081 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 4082 nri), timeoutMs); 4083 } 4084 return networkRequest; 4085 } 4086 4087 @Override 4088 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 4089 PendingIntent operation) { 4090 // TODO 4091 return null; 4092 } 4093 4094 @Override 4095 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 4096 Messenger messenger, IBinder binder) { 4097 enforceAccessPermission(); 4098 4099 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 4100 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 4101 if (DBG) log("listenForNetwork for " + networkRequest); 4102 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4103 NetworkRequestInfo.LISTEN); 4104 4105 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 4106 return networkRequest; 4107 } 4108 4109 @Override 4110 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 4111 PendingIntent operation) { 4112 } 4113 4114 @Override 4115 public void releaseNetworkRequest(NetworkRequest networkRequest) { 4116 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), 4117 0, networkRequest)); 4118 } 4119 4120 @Override 4121 public void registerNetworkFactory(Messenger messenger, String name) { 4122 enforceConnectivityInternalPermission(); 4123 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 4124 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 4125 } 4126 4127 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 4128 if (VDBG) log("Got NetworkFactory Messenger for " + nfi.name); 4129 mNetworkFactoryInfos.put(nfi.messenger, nfi); 4130 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 4131 } 4132 4133 @Override 4134 public void unregisterNetworkFactory(Messenger messenger) { 4135 enforceConnectivityInternalPermission(); 4136 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 4137 } 4138 4139 private void handleUnregisterNetworkFactory(Messenger messenger) { 4140 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 4141 if (nfi == null) { 4142 if (VDBG) log("Failed to find Messenger in unregisterNetworkFactory"); 4143 return; 4144 } 4145 if (VDBG) log("unregisterNetworkFactory for " + nfi.name); 4146 } 4147 4148 /** 4149 * NetworkAgentInfo supporting a request by requestId. 4150 * These have already been vetted (their Capabilities satisfy the request) 4151 * and the are the highest scored network available. 4152 * the are keyed off the Requests requestId. 4153 */ 4154 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 4155 new SparseArray<NetworkAgentInfo>(); 4156 4157 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 4158 new SparseArray<NetworkAgentInfo>(); 4159 4160 // NetworkAgentInfo keyed off its connecting messenger 4161 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 4162 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 4163 new HashMap<Messenger, NetworkAgentInfo>(); 4164 4165 private final NetworkRequest mDefaultRequest; 4166 4167 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 4168 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 4169 } 4170 4171 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 4172 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 4173 int currentScore, NetworkMisc networkMisc) { 4174 enforceConnectivityInternalPermission(); 4175 4176 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), 4177 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 4178 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler, 4179 networkMisc); 4180 synchronized (this) { 4181 nai.networkMonitor.systemReady = mSystemReady; 4182 } 4183 if (VDBG) log("registerNetworkAgent " + nai); 4184 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 4185 } 4186 4187 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 4188 if (VDBG) log("Got NetworkAgent Messenger"); 4189 mNetworkAgentInfos.put(na.messenger, na); 4190 assignNextNetId(na); 4191 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 4192 NetworkInfo networkInfo = na.networkInfo; 4193 na.networkInfo = null; 4194 updateNetworkInfo(na, networkInfo); 4195 } 4196 4197 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 4198 LinkProperties newLp = networkAgent.linkProperties; 4199 int netId = networkAgent.network.netId; 4200 4201 updateInterfaces(newLp, oldLp, netId); 4202 updateMtu(newLp, oldLp); 4203 updateTcpBufferSizes(networkAgent); 4204 // TODO - figure out what to do for clat 4205// for (LinkProperties lp : newLp.getStackedLinks()) { 4206// updateMtu(lp, null); 4207// } 4208 final boolean flushDns = updateRoutes(newLp, oldLp, netId); 4209 updateDnses(newLp, oldLp, netId, flushDns); 4210 updateClat(newLp, oldLp, networkAgent); 4211 } 4212 4213 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { 4214 // Update 464xlat state. 4215 if (mClat.requiresClat(na)) { 4216 4217 // If the connection was previously using clat, but is not using it now, stop the clat 4218 // daemon. Normally, this happens automatically when the connection disconnects, but if 4219 // the disconnect is not reported, or if the connection's LinkProperties changed for 4220 // some other reason (e.g., handoff changes the IP addresses on the link), it would 4221 // still be running. If it's not running, then stopping it is a no-op. 4222 if (Nat464Xlat.isRunningClat(oldLp) && !Nat464Xlat.isRunningClat(newLp)) { 4223 mClat.stopClat(); 4224 } 4225 // If the link requires clat to be running, then start the daemon now. 4226 if (na.networkInfo.isConnected()) { 4227 mClat.startClat(na); 4228 } else { 4229 mClat.stopClat(); 4230 } 4231 } 4232 } 4233 4234 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 4235 CompareResult<String> interfaceDiff = new CompareResult<String>(); 4236 if (oldLp != null) { 4237 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 4238 } else if (newLp != null) { 4239 interfaceDiff.added = newLp.getAllInterfaceNames(); 4240 } 4241 for (String iface : interfaceDiff.added) { 4242 try { 4243 mNetd.addInterfaceToNetwork(iface, netId); 4244 } catch (Exception e) { 4245 loge("Exception adding interface: " + e); 4246 } 4247 } 4248 for (String iface : interfaceDiff.removed) { 4249 try { 4250 mNetd.removeInterfaceFromNetwork(iface, netId); 4251 } catch (Exception e) { 4252 loge("Exception removing interface: " + e); 4253 } 4254 } 4255 } 4256 4257 /** 4258 * Have netd update routes from oldLp to newLp. 4259 * @return true if routes changed between oldLp and newLp 4260 */ 4261 private boolean updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 4262 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 4263 if (oldLp != null) { 4264 routeDiff = oldLp.compareAllRoutes(newLp); 4265 } else if (newLp != null) { 4266 routeDiff.added = newLp.getAllRoutes(); 4267 } 4268 4269 // add routes before removing old in case it helps with continuous connectivity 4270 4271 // do this twice, adding non-nexthop routes first, then routes they are dependent on 4272 for (RouteInfo route : routeDiff.added) { 4273 if (route.hasGateway()) continue; 4274 try { 4275 mNetd.addRoute(netId, route); 4276 } catch (Exception e) { 4277 loge("Exception in addRoute for non-gateway: " + e); 4278 } 4279 } 4280 for (RouteInfo route : routeDiff.added) { 4281 if (route.hasGateway() == false) continue; 4282 try { 4283 mNetd.addRoute(netId, route); 4284 } catch (Exception e) { 4285 loge("Exception in addRoute for gateway: " + e); 4286 } 4287 } 4288 4289 for (RouteInfo route : routeDiff.removed) { 4290 try { 4291 mNetd.removeRoute(netId, route); 4292 } catch (Exception e) { 4293 loge("Exception in removeRoute: " + e); 4294 } 4295 } 4296 return !routeDiff.added.isEmpty() || !routeDiff.removed.isEmpty(); 4297 } 4298 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId, boolean flush) { 4299 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 4300 Collection<InetAddress> dnses = newLp.getDnsServers(); 4301 if (dnses.size() == 0 && mDefaultDns != null) { 4302 dnses = new ArrayList(); 4303 dnses.add(mDefaultDns); 4304 if (DBG) { 4305 loge("no dns provided for netId " + netId + ", so using defaults"); 4306 } 4307 } 4308 try { 4309 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 4310 newLp.getDomains()); 4311 } catch (Exception e) { 4312 loge("Exception in setDnsServersForNetwork: " + e); 4313 } 4314 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 4315 if (defaultNai != null && defaultNai.network.netId == netId) { 4316 setDefaultDnsSystemProperties(dnses); 4317 } 4318 flushVmDnsCache(); 4319 } else if (flush) { 4320 try { 4321 mNetd.flushNetworkDnsCache(netId); 4322 } catch (Exception e) { 4323 loge("Exception in flushNetworkDnsCache: " + e); 4324 } 4325 flushVmDnsCache(); 4326 } 4327 } 4328 4329 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 4330 int last = 0; 4331 for (InetAddress dns : dnses) { 4332 ++last; 4333 String key = "net.dns" + last; 4334 String value = dns.getHostAddress(); 4335 SystemProperties.set(key, value); 4336 } 4337 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 4338 String key = "net.dns" + i; 4339 SystemProperties.set(key, ""); 4340 } 4341 mNumDnsEntries = last; 4342 } 4343 4344 4345 private void updateCapabilities(NetworkAgentInfo networkAgent, 4346 NetworkCapabilities networkCapabilities) { 4347 // TODO - what else here? Verify still satisfies everybody? 4348 // Check if satisfies somebody new? call callbacks? 4349 synchronized (networkAgent) { 4350 networkAgent.networkCapabilities = networkCapabilities; 4351 } 4352 } 4353 4354 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 4355 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 4356 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 4357 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 4358 networkRequest); 4359 } 4360 } 4361 4362 private void callCallbackForRequest(NetworkRequestInfo nri, 4363 NetworkAgentInfo networkAgent, int notificationType) { 4364 if (nri.messenger == null) return; // Default request has no msgr 4365 Object o; 4366 int a1 = 0; 4367 int a2 = 0; 4368 switch (notificationType) { 4369 case ConnectivityManager.CALLBACK_LOSING: 4370 a1 = 30 * 1000; // TODO - read this from NetworkMonitor 4371 // fall through 4372 case ConnectivityManager.CALLBACK_PRECHECK: 4373 case ConnectivityManager.CALLBACK_AVAILABLE: 4374 case ConnectivityManager.CALLBACK_LOST: 4375 case ConnectivityManager.CALLBACK_CAP_CHANGED: 4376 case ConnectivityManager.CALLBACK_IP_CHANGED: { 4377 o = new NetworkRequest(nri.request); 4378 a2 = networkAgent.network.netId; 4379 break; 4380 } 4381 case ConnectivityManager.CALLBACK_UNAVAIL: 4382 case ConnectivityManager.CALLBACK_RELEASED: { 4383 o = new NetworkRequest(nri.request); 4384 break; 4385 } 4386 default: { 4387 loge("Unknown notificationType " + notificationType); 4388 return; 4389 } 4390 } 4391 Message msg = Message.obtain(); 4392 msg.arg1 = a1; 4393 msg.arg2 = a2; 4394 msg.obj = o; 4395 msg.what = notificationType; 4396 try { 4397 if (VDBG) log("sending notification " + notificationType + " for " + nri.request); 4398 nri.messenger.send(msg); 4399 } catch (RemoteException e) { 4400 // may occur naturally in the race of binder death. 4401 loge("RemoteException caught trying to send a callback msg for " + nri.request); 4402 } 4403 } 4404 4405 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 4406 if (oldNetwork == null) { 4407 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 4408 return; 4409 } 4410 if (DBG) log("handleLingerComplete for " + oldNetwork.name()); 4411 if (DBG) { 4412 if (oldNetwork.networkRequests.size() != 0) { 4413 loge("Dead network still had " + oldNetwork.networkRequests.size() + " requests"); 4414 } 4415 } 4416 oldNetwork.asyncChannel.disconnect(); 4417 } 4418 4419 private void makeDefault(NetworkAgentInfo newNetwork) { 4420 if (VDBG) log("Switching to new default network: " + newNetwork); 4421 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4422 setupDataActivityTracking(newNetwork); 4423 try { 4424 mNetd.setDefaultNetId(newNetwork.network.netId); 4425 } catch (Exception e) { 4426 loge("Exception setting default network :" + e); 4427 } 4428 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 4429 updateTcpBufferSizes(newNetwork); 4430 } 4431 4432 private void handleConnectionValidated(NetworkAgentInfo newNetwork) { 4433 if (newNetwork == null) { 4434 loge("Unknown NetworkAgentInfo in handleConnectionValidated"); 4435 return; 4436 } 4437 boolean keep = newNetwork.isVPN(); 4438 boolean isNewDefault = false; 4439 if (DBG) log("handleConnectionValidated for "+newNetwork.name()); 4440 // check if any NetworkRequest wants this NetworkAgent 4441 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 4442 if (VDBG) log(" new Network has: " + newNetwork.networkCapabilities); 4443 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 4444 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 4445 if (newNetwork == currentNetwork) { 4446 if (VDBG) log("Network " + newNetwork.name() + " was already satisfying" + 4447 " request " + nri.request.requestId + ". No change."); 4448 keep = true; 4449 continue; 4450 } 4451 4452 // check if it satisfies the NetworkCapabilities 4453 if (VDBG) log(" checking if request is satisfied: " + nri.request); 4454 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 4455 newNetwork.networkCapabilities)) { 4456 if (!nri.isRequest) { 4457 newNetwork.addRequest(nri.request); 4458 continue; 4459 } 4460 // next check if it's better than any current network we're using for 4461 // this request 4462 if (VDBG) { 4463 log("currentScore = " + 4464 (currentNetwork != null ? currentNetwork.currentScore : 0) + 4465 ", newScore = " + newNetwork.currentScore); 4466 } 4467 if (currentNetwork == null || 4468 currentNetwork.currentScore < newNetwork.currentScore) { 4469 if (currentNetwork != null) { 4470 if (VDBG) log(" accepting network in place of " + currentNetwork.name()); 4471 currentNetwork.networkRequests.remove(nri.request.requestId); 4472 currentNetwork.networkLingered.add(nri.request); 4473 affectedNetworks.add(currentNetwork); 4474 } else { 4475 if (VDBG) log(" accepting network in place of null"); 4476 } 4477 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 4478 newNetwork.addRequest(nri.request); 4479 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 4480 mLegacyTypeTracker.add(nri.request.legacyType, newNetwork); 4481 } 4482 keep = true; 4483 // TODO - this could get expensive if we have alot of requests for this 4484 // network. Think about if there is a way to reduce this. Push 4485 // netid->request mapping to each factory? 4486 sendUpdatedScoreToFactories(nri.request, newNetwork.currentScore); 4487 if (mDefaultRequest.requestId == nri.request.requestId) { 4488 isNewDefault = true; 4489 updateActiveDefaultNetwork(newNetwork); 4490 if (newNetwork.linkProperties != null) { 4491 updateTcpBufferSizes(newNetwork); 4492 setDefaultDnsSystemProperties( 4493 newNetwork.linkProperties.getDnsServers()); 4494 } else { 4495 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 4496 } 4497 // Maintain the illusion: since the legacy API only 4498 // understands one network at a time, we must pretend 4499 // that the current default network disconnected before 4500 // the new one connected. 4501 if (currentNetwork != null) { 4502 mLegacyTypeTracker.remove(currentNetwork.networkInfo.getType(), 4503 currentNetwork); 4504 } 4505 mDefaultInetConditionPublished = 100; 4506 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 4507 } 4508 } 4509 } 4510 } 4511 for (NetworkAgentInfo nai : affectedNetworks) { 4512 boolean teardown = !nai.isVPN(); 4513 for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { 4514 NetworkRequest nr = nai.networkRequests.valueAt(i); 4515 try { 4516 if (mNetworkRequests.get(nr).isRequest) { 4517 teardown = false; 4518 } 4519 } catch (Exception e) { 4520 loge("Request " + nr + " not found in mNetworkRequests."); 4521 loge(" it came from request list of " + nai.name()); 4522 } 4523 } 4524 if (teardown) { 4525 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 4526 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 4527 } else { 4528 // not going to linger, so kill the list of linger networks.. only 4529 // notify them of linger if it happens as the result of gaining another, 4530 // but if they transition and old network stays up, don't tell them of linger 4531 // or very delayed loss 4532 nai.networkLingered.clear(); 4533 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 4534 } 4535 } 4536 if (keep) { 4537 if (isNewDefault) { 4538 makeDefault(newNetwork); 4539 synchronized (ConnectivityService.this) { 4540 // have a new default network, release the transition wakelock in 4541 // a second if it's held. The second pause is to allow apps 4542 // to reconnect over the new network 4543 if (mNetTransitionWakeLock.isHeld()) { 4544 mHandler.sendMessageDelayed(mHandler.obtainMessage( 4545 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 4546 mNetTransitionWakeLockSerialNumber, 0), 4547 1000); 4548 } 4549 } 4550 } 4551 4552 // Notify battery stats service about this network, both the normal 4553 // interface and any stacked links. 4554 try { 4555 final IBatteryStats bs = BatteryStatsService.getService(); 4556 final int type = newNetwork.networkInfo.getType(); 4557 4558 final String baseIface = newNetwork.linkProperties.getInterfaceName(); 4559 bs.noteNetworkInterfaceType(baseIface, type); 4560 for (LinkProperties stacked : newNetwork.linkProperties.getStackedLinks()) { 4561 final String stackedIface = stacked.getInterfaceName(); 4562 bs.noteNetworkInterfaceType(stackedIface, type); 4563 NetworkStatsFactory.noteStackedIface(stackedIface, baseIface); 4564 } 4565 } catch (RemoteException ignored) { 4566 } 4567 4568 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 4569 } else { 4570 if (DBG && newNetwork.networkRequests.size() != 0) { 4571 loge("tearing down network with live requests:"); 4572 for (int i=0; i < newNetwork.networkRequests.size(); i++) { 4573 loge(" " + newNetwork.networkRequests.valueAt(i)); 4574 } 4575 } 4576 if (VDBG) log("Validated network turns out to be unwanted. Tear it down."); 4577 newNetwork.asyncChannel.disconnect(); 4578 } 4579 } 4580 4581 4582 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 4583 NetworkInfo.State state = newInfo.getState(); 4584 NetworkInfo oldInfo = null; 4585 synchronized (networkAgent) { 4586 oldInfo = networkAgent.networkInfo; 4587 networkAgent.networkInfo = newInfo; 4588 } 4589 if (networkAgent.isVPN() && mLockdownTracker != null) { 4590 mLockdownTracker.onVpnStateChanged(newInfo); 4591 } 4592 4593 if (oldInfo != null && oldInfo.getState() == state) { 4594 if (VDBG) log("ignoring duplicate network state non-change"); 4595 return; 4596 } 4597 if (DBG) { 4598 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 4599 (oldInfo == null ? "null" : oldInfo.getState()) + 4600 " to " + state); 4601 } 4602 4603 if (state == NetworkInfo.State.CONNECTED && !networkAgent.created) { 4604 try { 4605 // This should never fail. Specifying an already in use NetID will cause failure. 4606 if (networkAgent.isVPN()) { 4607 mNetd.createVirtualNetwork(networkAgent.network.netId, 4608 !networkAgent.linkProperties.getDnsServers().isEmpty(), 4609 (networkAgent.networkMisc == null || 4610 !networkAgent.networkMisc.allowBypass)); 4611 } else { 4612 mNetd.createPhysicalNetwork(networkAgent.network.netId); 4613 } 4614 } catch (Exception e) { 4615 loge("Error creating network " + networkAgent.network.netId + ": " 4616 + e.getMessage()); 4617 return; 4618 } 4619 networkAgent.created = true; 4620 updateLinkProperties(networkAgent, null); 4621 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 4622 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 4623 if (networkAgent.isVPN()) { 4624 // Temporarily disable the default proxy (not global). 4625 synchronized (mProxyLock) { 4626 if (!mDefaultProxyDisabled) { 4627 mDefaultProxyDisabled = true; 4628 if (mGlobalProxy == null && mDefaultProxy != null) { 4629 sendProxyBroadcast(null); 4630 } 4631 } 4632 } 4633 // TODO: support proxy per network. 4634 } 4635 // Make default network if we have no default. Any network is better than no network. 4636 if (mNetworkForRequestId.get(mDefaultRequest.requestId) == null && 4637 networkAgent.isVPN() == false && 4638 mDefaultRequest.networkCapabilities.satisfiedByNetworkCapabilities( 4639 networkAgent.networkCapabilities)) { 4640 makeDefault(networkAgent); 4641 } 4642 } else if (state == NetworkInfo.State.DISCONNECTED || 4643 state == NetworkInfo.State.SUSPENDED) { 4644 networkAgent.asyncChannel.disconnect(); 4645 if (networkAgent.isVPN()) { 4646 synchronized (mProxyLock) { 4647 if (mDefaultProxyDisabled) { 4648 mDefaultProxyDisabled = false; 4649 if (mGlobalProxy == null && mDefaultProxy != null) { 4650 sendProxyBroadcast(mDefaultProxy); 4651 } 4652 } 4653 } 4654 } 4655 } 4656 } 4657 4658 private void updateNetworkScore(NetworkAgentInfo nai, int score) { 4659 if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); 4660 4661 nai.currentScore = score; 4662 4663 // TODO - This will not do the right thing if this network is lowering 4664 // its score and has requests that can be served by other 4665 // currently-active networks, or if the network is increasing its 4666 // score and other networks have requests that can be better served 4667 // by this network. 4668 // 4669 // Really we want to see if any of our requests migrate to other 4670 // active/lingered networks and if any other requests migrate to us (depending 4671 // on increasing/decreasing currentScore. That's a bit of work and probably our 4672 // score checking/network allocation code needs to be modularized so we can understand 4673 // (see handleConnectionValided for an example). 4674 // 4675 // As a first order approx, lets just advertise the new score to factories. If 4676 // somebody can beat it they will nominate a network and our normal net replacement 4677 // code will fire. 4678 for (int i = 0; i < nai.networkRequests.size(); i++) { 4679 NetworkRequest nr = nai.networkRequests.valueAt(i); 4680 sendUpdatedScoreToFactories(nr, score); 4681 } 4682 } 4683 4684 // notify only this one new request of the current state 4685 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 4686 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 4687 // TODO - read state from monitor to decide what to send. 4688// if (nai.networkMonitor.isLingering()) { 4689// notifyType = NetworkCallbacks.LOSING; 4690// } else if (nai.networkMonitor.isEvaluating()) { 4691// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 4692// } 4693 callCallbackForRequest(nri, nai, notifyType); 4694 } 4695 4696 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 4697 // The NetworkInfo we actually send out has no bearing on the real 4698 // state of affairs. For example, if the default connection is mobile, 4699 // and a request for HIPRI has just gone away, we need to pretend that 4700 // HIPRI has just disconnected. So we need to set the type to HIPRI and 4701 // the state to DISCONNECTED, even though the network is of type MOBILE 4702 // and is still connected. 4703 NetworkInfo info = new NetworkInfo(nai.networkInfo); 4704 info.setType(type); 4705 if (connected) { 4706 info.setDetailedState(DetailedState.CONNECTED, null, info.getExtraInfo()); 4707 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 4708 } else { 4709 info.setDetailedState(DetailedState.DISCONNECTED, null, info.getExtraInfo()); 4710 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 4711 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 4712 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 4713 if (info.isFailover()) { 4714 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 4715 nai.networkInfo.setFailover(false); 4716 } 4717 if (info.getReason() != null) { 4718 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 4719 } 4720 if (info.getExtraInfo() != null) { 4721 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 4722 } 4723 NetworkAgentInfo newDefaultAgent = null; 4724 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 4725 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 4726 if (newDefaultAgent != null) { 4727 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 4728 newDefaultAgent.networkInfo); 4729 } else { 4730 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 4731 } 4732 } 4733 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 4734 mDefaultInetConditionPublished); 4735 final Intent immediateIntent = new Intent(intent); 4736 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 4737 sendStickyBroadcast(immediateIntent); 4738 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 4739 if (newDefaultAgent != null) { 4740 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 4741 getConnectivityChangeDelay()); 4742 } 4743 } 4744 } 4745 4746 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 4747 if (VDBG) log("notifyType " + notifyType + " for " + networkAgent.name()); 4748 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 4749 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 4750 NetworkRequestInfo nri = mNetworkRequests.get(nr); 4751 if (VDBG) log(" sending notification for " + nr); 4752 callCallbackForRequest(nri, networkAgent, notifyType); 4753 } 4754 } 4755 4756 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 4757 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4758 if (nai != null) { 4759 synchronized (nai) { 4760 return new LinkProperties(nai.linkProperties); 4761 } 4762 } 4763 return new LinkProperties(); 4764 } 4765 4766 private NetworkInfo getNetworkInfoForType(int networkType) { 4767 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 4768 return null; 4769 4770 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4771 if (nai != null) { 4772 NetworkInfo result = new NetworkInfo(nai.networkInfo); 4773 result.setType(networkType); 4774 return result; 4775 } else { 4776 NetworkInfo result = new NetworkInfo(networkType); 4777 result.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, null, null); 4778 return result; 4779 } 4780 } 4781 4782 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 4783 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4784 if (nai != null) { 4785 synchronized (nai) { 4786 return new NetworkCapabilities(nai.networkCapabilities); 4787 } 4788 } 4789 return new NetworkCapabilities(); 4790 } 4791 4792 @Override 4793 public boolean addVpnAddress(String address, int prefixLength) { 4794 throwIfLockdownEnabled(); 4795 int user = UserHandle.getUserId(Binder.getCallingUid()); 4796 synchronized (mVpns) { 4797 return mVpns.get(user).addAddress(address, prefixLength); 4798 } 4799 } 4800 4801 @Override 4802 public boolean removeVpnAddress(String address, int prefixLength) { 4803 throwIfLockdownEnabled(); 4804 int user = UserHandle.getUserId(Binder.getCallingUid()); 4805 synchronized (mVpns) { 4806 return mVpns.get(user).removeAddress(address, prefixLength); 4807 } 4808 } 4809} 4810