ConnectivityService.java revision 5df4bec50495914b47b6a2f73f20d2bd24a9f9ea
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 if (msg.arg1 == 0) { 1902 setProvNotificationVisibleIntent(false, msg.arg2, 0, null, null); 1903 } else { 1904 NetworkAgentInfo nai = null; 1905 synchronized (mNetworkForNetId) { 1906 nai = mNetworkForNetId.get(msg.arg2); 1907 } 1908 if (nai == null) { 1909 loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); 1910 break; 1911 } 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 // tell the network currently servicing this that it's no longer interested 2171 NetworkAgentInfo affectedNetwork = mNetworkForRequestId.get(nri.request.requestId); 2172 if (affectedNetwork != null) { 2173 mNetworkForRequestId.remove(nri.request.requestId); 2174 affectedNetwork.networkRequests.remove(nri.request.requestId); 2175 if (VDBG) { 2176 log(" Removing from current network " + affectedNetwork.name() + ", leaving " + 2177 affectedNetwork.networkRequests.size() + " requests."); 2178 } 2179 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 2180 mLegacyTypeTracker.remove(nri.request.legacyType, affectedNetwork); 2181 } 2182 } 2183 2184 if (nri.isRequest) { 2185 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2186 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 2187 nri.request); 2188 } 2189 2190 if (affectedNetwork != null) { 2191 // check if this network still has live requests - otherwise, tear down 2192 // TODO - probably push this to the NF/NA 2193 boolean keep = affectedNetwork.isVPN(); 2194 for (int i = 0; i < affectedNetwork.networkRequests.size() && !keep; i++) { 2195 NetworkRequest r = affectedNetwork.networkRequests.valueAt(i); 2196 if (mNetworkRequests.get(r).isRequest) { 2197 keep = true; 2198 } 2199 } 2200 if (keep == false) { 2201 if (DBG) log("no live requests for " + affectedNetwork.name() + 2202 "; disconnecting"); 2203 affectedNetwork.asyncChannel.disconnect(); 2204 } 2205 } 2206 } 2207 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 2208 } 2209 } 2210 2211 private class InternalHandler extends Handler { 2212 public InternalHandler(Looper looper) { 2213 super(looper); 2214 } 2215 2216 @Override 2217 public void handleMessage(Message msg) { 2218 NetworkInfo info; 2219 switch (msg.what) { 2220 case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: 2221 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 2222 String causedBy = null; 2223 synchronized (ConnectivityService.this) { 2224 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 2225 mNetTransitionWakeLock.isHeld()) { 2226 mNetTransitionWakeLock.release(); 2227 causedBy = mNetTransitionWakeLockCausedBy; 2228 } else { 2229 break; 2230 } 2231 } 2232 if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { 2233 log("Failed to find a new network - expiring NetTransition Wakelock"); 2234 } else { 2235 log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + 2236 " cleared because we found a replacement network"); 2237 } 2238 break; 2239 } 2240 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 2241 handleDeprecatedGlobalHttpProxy(); 2242 break; 2243 } 2244 case EVENT_SET_DEPENDENCY_MET: { 2245 boolean met = (msg.arg1 == ENABLED); 2246 handleSetDependencyMet(msg.arg2, met); 2247 break; 2248 } 2249 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 2250 Intent intent = (Intent)msg.obj; 2251 sendStickyBroadcast(intent); 2252 break; 2253 } 2254 case EVENT_SET_POLICY_DATA_ENABLE: { 2255 final int networkType = msg.arg1; 2256 final boolean enabled = msg.arg2 == ENABLED; 2257 handleSetPolicyDataEnable(networkType, enabled); 2258 break; 2259 } 2260 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 2261 int tag = mEnableFailFastMobileDataTag.get(); 2262 if (msg.arg1 == tag) { 2263 MobileDataStateTracker mobileDst = 2264 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2265 if (mobileDst != null) { 2266 mobileDst.setEnableFailFastMobileData(msg.arg2); 2267 } 2268 } else { 2269 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 2270 + " != tag:" + tag); 2271 } 2272 break; 2273 } 2274 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 2275 handleNetworkSamplingTimeout(); 2276 break; 2277 } 2278 case EVENT_PROXY_HAS_CHANGED: { 2279 handleApplyDefaultProxy((ProxyInfo)msg.obj); 2280 break; 2281 } 2282 case EVENT_REGISTER_NETWORK_FACTORY: { 2283 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 2284 break; 2285 } 2286 case EVENT_UNREGISTER_NETWORK_FACTORY: { 2287 handleUnregisterNetworkFactory((Messenger)msg.obj); 2288 break; 2289 } 2290 case EVENT_REGISTER_NETWORK_AGENT: { 2291 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 2292 break; 2293 } 2294 case EVENT_REGISTER_NETWORK_REQUEST: 2295 case EVENT_REGISTER_NETWORK_LISTENER: { 2296 handleRegisterNetworkRequest(msg); 2297 break; 2298 } 2299 case EVENT_RELEASE_NETWORK_REQUEST: { 2300 handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); 2301 break; 2302 } 2303 case EVENT_SYSTEM_READY: { 2304 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2305 nai.networkMonitor.systemReady = true; 2306 } 2307 break; 2308 } 2309 } 2310 } 2311 } 2312 2313 // javadoc from interface 2314 public int tether(String iface) { 2315 enforceTetherChangePermission(); 2316 2317 if (isTetheringSupported()) { 2318 return mTethering.tether(iface); 2319 } else { 2320 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2321 } 2322 } 2323 2324 // javadoc from interface 2325 public int untether(String iface) { 2326 enforceTetherChangePermission(); 2327 2328 if (isTetheringSupported()) { 2329 return mTethering.untether(iface); 2330 } else { 2331 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2332 } 2333 } 2334 2335 // javadoc from interface 2336 public int getLastTetherError(String iface) { 2337 enforceTetherAccessPermission(); 2338 2339 if (isTetheringSupported()) { 2340 return mTethering.getLastTetherError(iface); 2341 } else { 2342 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2343 } 2344 } 2345 2346 // TODO - proper iface API for selection by property, inspection, etc 2347 public String[] getTetherableUsbRegexs() { 2348 enforceTetherAccessPermission(); 2349 if (isTetheringSupported()) { 2350 return mTethering.getTetherableUsbRegexs(); 2351 } else { 2352 return new String[0]; 2353 } 2354 } 2355 2356 public String[] getTetherableWifiRegexs() { 2357 enforceTetherAccessPermission(); 2358 if (isTetheringSupported()) { 2359 return mTethering.getTetherableWifiRegexs(); 2360 } else { 2361 return new String[0]; 2362 } 2363 } 2364 2365 public String[] getTetherableBluetoothRegexs() { 2366 enforceTetherAccessPermission(); 2367 if (isTetheringSupported()) { 2368 return mTethering.getTetherableBluetoothRegexs(); 2369 } else { 2370 return new String[0]; 2371 } 2372 } 2373 2374 public int setUsbTethering(boolean enable) { 2375 enforceTetherChangePermission(); 2376 if (isTetheringSupported()) { 2377 return mTethering.setUsbTethering(enable); 2378 } else { 2379 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2380 } 2381 } 2382 2383 // TODO - move iface listing, queries, etc to new module 2384 // javadoc from interface 2385 public String[] getTetherableIfaces() { 2386 enforceTetherAccessPermission(); 2387 return mTethering.getTetherableIfaces(); 2388 } 2389 2390 public String[] getTetheredIfaces() { 2391 enforceTetherAccessPermission(); 2392 return mTethering.getTetheredIfaces(); 2393 } 2394 2395 public String[] getTetheringErroredIfaces() { 2396 enforceTetherAccessPermission(); 2397 return mTethering.getErroredIfaces(); 2398 } 2399 2400 public String[] getTetheredDhcpRanges() { 2401 enforceConnectivityInternalPermission(); 2402 return mTethering.getTetheredDhcpRanges(); 2403 } 2404 2405 // if ro.tether.denied = true we default to no tethering 2406 // gservices could set the secure setting to 1 though to enable it on a build where it 2407 // had previously been turned off. 2408 public boolean isTetheringSupported() { 2409 enforceTetherAccessPermission(); 2410 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 2411 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 2412 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0) 2413 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); 2414 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 2415 mTethering.getTetherableWifiRegexs().length != 0 || 2416 mTethering.getTetherableBluetoothRegexs().length != 0) && 2417 mTethering.getUpstreamIfaceTypes().length != 0); 2418 } 2419 2420 // Called when we lose the default network and have no replacement yet. 2421 // This will automatically be cleared after X seconds or a new default network 2422 // becomes CONNECTED, whichever happens first. The timer is started by the 2423 // first caller and not restarted by subsequent callers. 2424 private void requestNetworkTransitionWakelock(String forWhom) { 2425 int serialNum = 0; 2426 synchronized (this) { 2427 if (mNetTransitionWakeLock.isHeld()) return; 2428 serialNum = ++mNetTransitionWakeLockSerialNumber; 2429 mNetTransitionWakeLock.acquire(); 2430 mNetTransitionWakeLockCausedBy = forWhom; 2431 } 2432 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2433 EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), 2434 mNetTransitionWakeLockTimeout); 2435 return; 2436 } 2437 2438 // 100 percent is full good, 0 is full bad. 2439 public void reportInetCondition(int networkType, int percentage) { 2440 if (percentage > 50) return; // don't handle good network reports 2441 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 2442 if (nai != null) reportBadNetwork(nai.network); 2443 } 2444 2445 public void reportBadNetwork(Network network) { 2446 //TODO 2447 } 2448 2449 public ProxyInfo getProxy() { 2450 // this information is already available as a world read/writable jvm property 2451 // so this API change wouldn't have a benifit. It also breaks the passing 2452 // of proxy info to all the JVMs. 2453 // enforceAccessPermission(); 2454 synchronized (mProxyLock) { 2455 ProxyInfo ret = mGlobalProxy; 2456 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 2457 return ret; 2458 } 2459 } 2460 2461 public void setGlobalProxy(ProxyInfo proxyProperties) { 2462 enforceConnectivityInternalPermission(); 2463 2464 synchronized (mProxyLock) { 2465 if (proxyProperties == mGlobalProxy) return; 2466 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 2467 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 2468 2469 String host = ""; 2470 int port = 0; 2471 String exclList = ""; 2472 String pacFileUrl = ""; 2473 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 2474 (proxyProperties.getPacFileUrl() != null))) { 2475 if (!proxyProperties.isValid()) { 2476 if (DBG) 2477 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2478 return; 2479 } 2480 mGlobalProxy = new ProxyInfo(proxyProperties); 2481 host = mGlobalProxy.getHost(); 2482 port = mGlobalProxy.getPort(); 2483 exclList = mGlobalProxy.getExclusionListAsString(); 2484 if (proxyProperties.getPacFileUrl() != null) { 2485 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 2486 } 2487 } else { 2488 mGlobalProxy = null; 2489 } 2490 ContentResolver res = mContext.getContentResolver(); 2491 final long token = Binder.clearCallingIdentity(); 2492 try { 2493 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 2494 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 2495 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 2496 exclList); 2497 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 2498 } finally { 2499 Binder.restoreCallingIdentity(token); 2500 } 2501 } 2502 2503 if (mGlobalProxy == null) { 2504 proxyProperties = mDefaultProxy; 2505 } 2506 sendProxyBroadcast(proxyProperties); 2507 } 2508 2509 private void loadGlobalProxy() { 2510 ContentResolver res = mContext.getContentResolver(); 2511 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 2512 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 2513 String exclList = Settings.Global.getString(res, 2514 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 2515 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 2516 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 2517 ProxyInfo proxyProperties; 2518 if (!TextUtils.isEmpty(pacFileUrl)) { 2519 proxyProperties = new ProxyInfo(pacFileUrl); 2520 } else { 2521 proxyProperties = new ProxyInfo(host, port, exclList); 2522 } 2523 if (!proxyProperties.isValid()) { 2524 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2525 return; 2526 } 2527 2528 synchronized (mProxyLock) { 2529 mGlobalProxy = proxyProperties; 2530 } 2531 } 2532 } 2533 2534 public ProxyInfo getGlobalProxy() { 2535 // this information is already available as a world read/writable jvm property 2536 // so this API change wouldn't have a benifit. It also breaks the passing 2537 // of proxy info to all the JVMs. 2538 // enforceAccessPermission(); 2539 synchronized (mProxyLock) { 2540 return mGlobalProxy; 2541 } 2542 } 2543 2544 private void handleApplyDefaultProxy(ProxyInfo proxy) { 2545 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 2546 && (proxy.getPacFileUrl() == null)) { 2547 proxy = null; 2548 } 2549 synchronized (mProxyLock) { 2550 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 2551 if (mDefaultProxy == proxy) return; // catches repeated nulls 2552 if (proxy != null && !proxy.isValid()) { 2553 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 2554 return; 2555 } 2556 2557 // This call could be coming from the PacManager, containing the port of the local 2558 // proxy. If this new proxy matches the global proxy then copy this proxy to the 2559 // global (to get the correct local port), and send a broadcast. 2560 // TODO: Switch PacManager to have its own message to send back rather than 2561 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 2562 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 2563 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 2564 mGlobalProxy = proxy; 2565 sendProxyBroadcast(mGlobalProxy); 2566 return; 2567 } 2568 mDefaultProxy = proxy; 2569 2570 if (mGlobalProxy != null) return; 2571 if (!mDefaultProxyDisabled) { 2572 sendProxyBroadcast(proxy); 2573 } 2574 } 2575 } 2576 2577 private void handleDeprecatedGlobalHttpProxy() { 2578 String proxy = Settings.Global.getString(mContext.getContentResolver(), 2579 Settings.Global.HTTP_PROXY); 2580 if (!TextUtils.isEmpty(proxy)) { 2581 String data[] = proxy.split(":"); 2582 if (data.length == 0) { 2583 return; 2584 } 2585 2586 String proxyHost = data[0]; 2587 int proxyPort = 8080; 2588 if (data.length > 1) { 2589 try { 2590 proxyPort = Integer.parseInt(data[1]); 2591 } catch (NumberFormatException e) { 2592 return; 2593 } 2594 } 2595 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 2596 setGlobalProxy(p); 2597 } 2598 } 2599 2600 private void sendProxyBroadcast(ProxyInfo proxy) { 2601 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 2602 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 2603 if (DBG) log("sending Proxy Broadcast for " + proxy); 2604 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 2605 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 2606 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2607 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 2608 final long ident = Binder.clearCallingIdentity(); 2609 try { 2610 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2611 } finally { 2612 Binder.restoreCallingIdentity(ident); 2613 } 2614 } 2615 2616 private static class SettingsObserver extends ContentObserver { 2617 private int mWhat; 2618 private Handler mHandler; 2619 SettingsObserver(Handler handler, int what) { 2620 super(handler); 2621 mHandler = handler; 2622 mWhat = what; 2623 } 2624 2625 void observe(Context context) { 2626 ContentResolver resolver = context.getContentResolver(); 2627 resolver.registerContentObserver(Settings.Global.getUriFor( 2628 Settings.Global.HTTP_PROXY), false, this); 2629 } 2630 2631 @Override 2632 public void onChange(boolean selfChange) { 2633 mHandler.obtainMessage(mWhat).sendToTarget(); 2634 } 2635 } 2636 2637 private static void log(String s) { 2638 Slog.d(TAG, s); 2639 } 2640 2641 private static void loge(String s) { 2642 Slog.e(TAG, s); 2643 } 2644 2645 int convertFeatureToNetworkType(int networkType, String feature) { 2646 int usedNetworkType = networkType; 2647 2648 if(networkType == ConnectivityManager.TYPE_MOBILE) { 2649 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 2650 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 2651 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 2652 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 2653 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 2654 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 2655 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 2656 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 2657 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 2658 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 2659 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 2660 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 2661 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 2662 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 2663 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 2664 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { 2665 usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; 2666 } else { 2667 Slog.e(TAG, "Can't match any mobile netTracker!"); 2668 } 2669 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 2670 if (TextUtils.equals(feature, "p2p")) { 2671 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 2672 } else { 2673 Slog.e(TAG, "Can't match any wifi netTracker!"); 2674 } 2675 } else { 2676 Slog.e(TAG, "Unexpected network type"); 2677 } 2678 return usedNetworkType; 2679 } 2680 2681 private static <T> T checkNotNull(T value, String message) { 2682 if (value == null) { 2683 throw new NullPointerException(message); 2684 } 2685 return value; 2686 } 2687 2688 /** 2689 * Prepare for a VPN application. This method is used by VpnDialogs 2690 * and not available in ConnectivityManager. Permissions are checked 2691 * in Vpn class. 2692 * @hide 2693 */ 2694 @Override 2695 public boolean prepareVpn(String oldPackage, String newPackage) { 2696 throwIfLockdownEnabled(); 2697 int user = UserHandle.getUserId(Binder.getCallingUid()); 2698 synchronized(mVpns) { 2699 return mVpns.get(user).prepare(oldPackage, newPackage); 2700 } 2701 } 2702 2703 /** 2704 * Set whether the current VPN package has the ability to launch VPNs without 2705 * user intervention. This method is used by system UIs and not available 2706 * in ConnectivityManager. Permissions are checked in Vpn class. 2707 * @hide 2708 */ 2709 @Override 2710 public void setVpnPackageAuthorization(boolean authorized) { 2711 int user = UserHandle.getUserId(Binder.getCallingUid()); 2712 synchronized(mVpns) { 2713 mVpns.get(user).setPackageAuthorization(authorized); 2714 } 2715 } 2716 2717 /** 2718 * Configure a TUN interface and return its file descriptor. Parameters 2719 * are encoded and opaque to this class. This method is used by VpnBuilder 2720 * and not available in ConnectivityManager. Permissions are checked in 2721 * Vpn class. 2722 * @hide 2723 */ 2724 @Override 2725 public ParcelFileDescriptor establishVpn(VpnConfig config) { 2726 throwIfLockdownEnabled(); 2727 int user = UserHandle.getUserId(Binder.getCallingUid()); 2728 synchronized(mVpns) { 2729 return mVpns.get(user).establish(config); 2730 } 2731 } 2732 2733 /** 2734 * Start legacy VPN, controlling native daemons as needed. Creates a 2735 * secondary thread to perform connection work, returning quickly. 2736 */ 2737 @Override 2738 public void startLegacyVpn(VpnProfile profile) { 2739 throwIfLockdownEnabled(); 2740 final LinkProperties egress = getActiveLinkProperties(); 2741 if (egress == null) { 2742 throw new IllegalStateException("Missing active network connection"); 2743 } 2744 int user = UserHandle.getUserId(Binder.getCallingUid()); 2745 synchronized(mVpns) { 2746 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 2747 } 2748 } 2749 2750 /** 2751 * Return the information of the ongoing legacy VPN. This method is used 2752 * by VpnSettings and not available in ConnectivityManager. Permissions 2753 * are checked in Vpn class. 2754 * @hide 2755 */ 2756 @Override 2757 public LegacyVpnInfo getLegacyVpnInfo() { 2758 throwIfLockdownEnabled(); 2759 int user = UserHandle.getUserId(Binder.getCallingUid()); 2760 synchronized(mVpns) { 2761 return mVpns.get(user).getLegacyVpnInfo(); 2762 } 2763 } 2764 2765 /** 2766 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 2767 * not available in ConnectivityManager. 2768 * Permissions are checked in Vpn class. 2769 * @hide 2770 */ 2771 @Override 2772 public VpnConfig getVpnConfig() { 2773 int user = UserHandle.getUserId(Binder.getCallingUid()); 2774 synchronized(mVpns) { 2775 return mVpns.get(user).getVpnConfig(); 2776 } 2777 } 2778 2779 @Override 2780 public boolean updateLockdownVpn() { 2781 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 2782 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 2783 return false; 2784 } 2785 2786 // Tear down existing lockdown if profile was removed 2787 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 2788 if (mLockdownEnabled) { 2789 if (!mKeyStore.isUnlocked()) { 2790 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 2791 return false; 2792 } 2793 2794 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 2795 final VpnProfile profile = VpnProfile.decode( 2796 profileName, mKeyStore.get(Credentials.VPN + profileName)); 2797 int user = UserHandle.getUserId(Binder.getCallingUid()); 2798 synchronized(mVpns) { 2799 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 2800 profile)); 2801 } 2802 } else { 2803 setLockdownTracker(null); 2804 } 2805 2806 return true; 2807 } 2808 2809 /** 2810 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 2811 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 2812 */ 2813 private void setLockdownTracker(LockdownVpnTracker tracker) { 2814 // Shutdown any existing tracker 2815 final LockdownVpnTracker existing = mLockdownTracker; 2816 mLockdownTracker = null; 2817 if (existing != null) { 2818 existing.shutdown(); 2819 } 2820 2821 try { 2822 if (tracker != null) { 2823 mNetd.setFirewallEnabled(true); 2824 mNetd.setFirewallInterfaceRule("lo", true); 2825 mLockdownTracker = tracker; 2826 mLockdownTracker.init(); 2827 } else { 2828 mNetd.setFirewallEnabled(false); 2829 } 2830 } catch (RemoteException e) { 2831 // ignored; NMS lives inside system_server 2832 } 2833 } 2834 2835 private void throwIfLockdownEnabled() { 2836 if (mLockdownEnabled) { 2837 throw new IllegalStateException("Unavailable in lockdown mode"); 2838 } 2839 } 2840 2841 public void supplyMessenger(int networkType, Messenger messenger) { 2842 enforceConnectivityInternalPermission(); 2843 2844 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 2845 mNetTrackers[networkType].supplyMessenger(messenger); 2846 } 2847 } 2848 2849 public int findConnectionTypeForIface(String iface) { 2850 enforceConnectivityInternalPermission(); 2851 2852 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 2853 2854 synchronized(mNetworkForNetId) { 2855 for (int i = 0; i < mNetworkForNetId.size(); i++) { 2856 NetworkAgentInfo nai = mNetworkForNetId.valueAt(i); 2857 LinkProperties lp = nai.linkProperties; 2858 if (lp != null && iface.equals(lp.getInterfaceName()) && nai.networkInfo != null) { 2859 return nai.networkInfo.getType(); 2860 } 2861 } 2862 } 2863 return ConnectivityManager.TYPE_NONE; 2864 } 2865 2866 /** 2867 * Have mobile data fail fast if enabled. 2868 * 2869 * @param enabled DctConstants.ENABLED/DISABLED 2870 */ 2871 private void setEnableFailFastMobileData(int enabled) { 2872 int tag; 2873 2874 if (enabled == DctConstants.ENABLED) { 2875 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 2876 } else { 2877 tag = mEnableFailFastMobileDataTag.get(); 2878 } 2879 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 2880 enabled)); 2881 } 2882 2883 private boolean isMobileDataStateTrackerReady() { 2884 MobileDataStateTracker mdst = 2885 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 2886 return (mdst != null) && (mdst.isReady()); 2887 } 2888 2889 /** 2890 * The ResultReceiver resultCode for checkMobileProvisioning (CMP_RESULT_CODE) 2891 */ 2892 2893 /** 2894 * No connection was possible to the network. 2895 * This is NOT a warm sim. 2896 */ 2897 private static final int CMP_RESULT_CODE_NO_CONNECTION = 0; 2898 2899 /** 2900 * A connection was made to the internet, all is well. 2901 * This is NOT a warm sim. 2902 */ 2903 private static final int CMP_RESULT_CODE_CONNECTABLE = 1; 2904 2905 /** 2906 * A connection was made but no dns server was available to resolve a name to address. 2907 * This is NOT a warm sim since provisioning network is supported. 2908 */ 2909 private static final int CMP_RESULT_CODE_NO_DNS = 2; 2910 2911 /** 2912 * A connection was made but could not open a TCP connection. 2913 * This is NOT a warm sim since provisioning network is supported. 2914 */ 2915 private static final int CMP_RESULT_CODE_NO_TCP_CONNECTION = 3; 2916 2917 /** 2918 * A connection was made but there was a redirection, we appear to be in walled garden. 2919 * This is an indication of a warm sim on a mobile network such as T-Mobile. 2920 */ 2921 private static final int CMP_RESULT_CODE_REDIRECTED = 4; 2922 2923 /** 2924 * The mobile network is a provisioning network. 2925 * This is an indication of a warm sim on a mobile network such as AT&T. 2926 */ 2927 private static final int CMP_RESULT_CODE_PROVISIONING_NETWORK = 5; 2928 2929 /** 2930 * The mobile network is provisioning 2931 */ 2932 private static final int CMP_RESULT_CODE_IS_PROVISIONING = 6; 2933 2934 private AtomicBoolean mIsProvisioningNetwork = new AtomicBoolean(false); 2935 private AtomicBoolean mIsStartingProvisioning = new AtomicBoolean(false); 2936 2937 private AtomicBoolean mIsCheckingMobileProvisioning = new AtomicBoolean(false); 2938 2939 @Override 2940 public int checkMobileProvisioning(int suggestedTimeOutMs) { 2941 int timeOutMs = -1; 2942 if (DBG) log("checkMobileProvisioning: E suggestedTimeOutMs=" + suggestedTimeOutMs); 2943 enforceConnectivityInternalPermission(); 2944 2945 final long token = Binder.clearCallingIdentity(); 2946 try { 2947 timeOutMs = suggestedTimeOutMs; 2948 if (suggestedTimeOutMs > CheckMp.MAX_TIMEOUT_MS) { 2949 timeOutMs = CheckMp.MAX_TIMEOUT_MS; 2950 } 2951 2952 // Check that mobile networks are supported 2953 if (!isNetworkSupported(ConnectivityManager.TYPE_MOBILE) 2954 || !isNetworkSupported(ConnectivityManager.TYPE_MOBILE_HIPRI)) { 2955 if (DBG) log("checkMobileProvisioning: X no mobile network"); 2956 return timeOutMs; 2957 } 2958 2959 // If we're already checking don't do it again 2960 // TODO: Add a queue of results... 2961 if (mIsCheckingMobileProvisioning.getAndSet(true)) { 2962 if (DBG) log("checkMobileProvisioning: X already checking ignore for the moment"); 2963 return timeOutMs; 2964 } 2965 2966 // Start off with mobile notification off 2967 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 2968 2969 CheckMp checkMp = new CheckMp(mContext, this); 2970 CheckMp.CallBack cb = new CheckMp.CallBack() { 2971 @Override 2972 void onComplete(Integer result) { 2973 if (DBG) log("CheckMp.onComplete: result=" + result); 2974 NetworkInfo ni = 2975 mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI].getNetworkInfo(); 2976 switch(result) { 2977 case CMP_RESULT_CODE_CONNECTABLE: 2978 case CMP_RESULT_CODE_NO_CONNECTION: 2979 case CMP_RESULT_CODE_NO_DNS: 2980 case CMP_RESULT_CODE_NO_TCP_CONNECTION: { 2981 if (DBG) log("CheckMp.onComplete: ignore, connected or no connection"); 2982 break; 2983 } 2984 case CMP_RESULT_CODE_REDIRECTED: { 2985 if (DBG) log("CheckMp.onComplete: warm sim"); 2986 String url = getMobileProvisioningUrl(); 2987 if (TextUtils.isEmpty(url)) { 2988 url = getMobileRedirectedProvisioningUrl(); 2989 } 2990 if (TextUtils.isEmpty(url) == false) { 2991 if (DBG) log("CheckMp.onComplete: warm (redirected), url=" + url); 2992 setProvNotificationVisible(true, 2993 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 2994 url); 2995 } else { 2996 if (DBG) log("CheckMp.onComplete: warm (redirected), no url"); 2997 } 2998 break; 2999 } 3000 case CMP_RESULT_CODE_PROVISIONING_NETWORK: { 3001 String url = getMobileProvisioningUrl(); 3002 if (TextUtils.isEmpty(url) == false) { 3003 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), url=" + url); 3004 setProvNotificationVisible(true, 3005 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 3006 url); 3007 // Mark that we've got a provisioning network and 3008 // Disable Mobile Data until user actually starts provisioning. 3009 mIsProvisioningNetwork.set(true); 3010 MobileDataStateTracker mdst = (MobileDataStateTracker) 3011 mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3012 3013 // Disable radio until user starts provisioning 3014 mdst.setRadio(false); 3015 } else { 3016 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), no url"); 3017 } 3018 break; 3019 } 3020 case CMP_RESULT_CODE_IS_PROVISIONING: { 3021 // FIXME: Need to know when provisioning is done. Probably we can 3022 // check the completion status if successful we're done if we 3023 // "timedout" or still connected to provisioning APN turn off data? 3024 if (DBG) log("CheckMp.onComplete: provisioning started"); 3025 mIsStartingProvisioning.set(false); 3026 break; 3027 } 3028 default: { 3029 loge("CheckMp.onComplete: ignore unexpected result=" + result); 3030 break; 3031 } 3032 } 3033 mIsCheckingMobileProvisioning.set(false); 3034 } 3035 }; 3036 CheckMp.Params params = 3037 new CheckMp.Params(checkMp.getDefaultUrl(), timeOutMs, cb); 3038 if (DBG) log("checkMobileProvisioning: params=" + params); 3039 // TODO: Reenable when calls to the now defunct 3040 // MobileDataStateTracker.isProvisioningNetwork() are removed. 3041 // This code should be moved to the Telephony code. 3042 // checkMp.execute(params); 3043 } finally { 3044 Binder.restoreCallingIdentity(token); 3045 if (DBG) log("checkMobileProvisioning: X"); 3046 } 3047 return timeOutMs; 3048 } 3049 3050 static class CheckMp extends 3051 AsyncTask<CheckMp.Params, Void, Integer> { 3052 private static final String CHECKMP_TAG = "CheckMp"; 3053 3054 // adb shell setprop persist.checkmp.testfailures 1 to enable testing failures 3055 private static boolean mTestingFailures; 3056 3057 // Choosing 4 loops as half of them will use HTTPS and the other half HTTP 3058 private static final int MAX_LOOPS = 4; 3059 3060 // Number of milli-seconds to complete all of the retires 3061 public static final int MAX_TIMEOUT_MS = 60000; 3062 3063 // The socket should retry only 5 seconds, the default is longer 3064 private static final int SOCKET_TIMEOUT_MS = 5000; 3065 3066 // Sleep time for network errors 3067 private static final int NET_ERROR_SLEEP_SEC = 3; 3068 3069 // Sleep time for network route establishment 3070 private static final int NET_ROUTE_ESTABLISHMENT_SLEEP_SEC = 3; 3071 3072 // Short sleep time for polling :( 3073 private static final int POLLING_SLEEP_SEC = 1; 3074 3075 private Context mContext; 3076 private ConnectivityService mCs; 3077 private TelephonyManager mTm; 3078 private Params mParams; 3079 3080 /** 3081 * Parameters for AsyncTask.execute 3082 */ 3083 static class Params { 3084 private String mUrl; 3085 private long mTimeOutMs; 3086 private CallBack mCb; 3087 3088 Params(String url, long timeOutMs, CallBack cb) { 3089 mUrl = url; 3090 mTimeOutMs = timeOutMs; 3091 mCb = cb; 3092 } 3093 3094 @Override 3095 public String toString() { 3096 return "{" + " url=" + mUrl + " mTimeOutMs=" + mTimeOutMs + " mCb=" + mCb + "}"; 3097 } 3098 } 3099 3100 // As explained to me by Brian Carlstrom and Kenny Root, Certificates can be 3101 // issued by name or ip address, for Google its by name so when we construct 3102 // this HostnameVerifier we'll pass the original Uri and use it to verify 3103 // the host. If the host name in the original uril fails we'll test the 3104 // hostname parameter just incase things change. 3105 static class CheckMpHostnameVerifier implements HostnameVerifier { 3106 Uri mOrgUri; 3107 3108 CheckMpHostnameVerifier(Uri orgUri) { 3109 mOrgUri = orgUri; 3110 } 3111 3112 @Override 3113 public boolean verify(String hostname, SSLSession session) { 3114 HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier(); 3115 String orgUriHost = mOrgUri.getHost(); 3116 boolean retVal = hv.verify(orgUriHost, session) || hv.verify(hostname, session); 3117 if (DBG) { 3118 log("isMobileOk: hostnameVerify retVal=" + retVal + " hostname=" + hostname 3119 + " orgUriHost=" + orgUriHost); 3120 } 3121 return retVal; 3122 } 3123 } 3124 3125 /** 3126 * The call back object passed in Params. onComplete will be called 3127 * on the main thread. 3128 */ 3129 abstract static class CallBack { 3130 // Called on the main thread. 3131 abstract void onComplete(Integer result); 3132 } 3133 3134 public CheckMp(Context context, ConnectivityService cs) { 3135 if (Build.IS_DEBUGGABLE) { 3136 mTestingFailures = 3137 SystemProperties.getInt("persist.checkmp.testfailures", 0) == 1; 3138 } else { 3139 mTestingFailures = false; 3140 } 3141 3142 mContext = context; 3143 mCs = cs; 3144 3145 // Setup access to TelephonyService we'll be using. 3146 mTm = (TelephonyManager) mContext.getSystemService( 3147 Context.TELEPHONY_SERVICE); 3148 } 3149 3150 /** 3151 * Get the default url to use for the test. 3152 */ 3153 public String getDefaultUrl() { 3154 // See http://go/clientsdns for usage approval 3155 String server = Settings.Global.getString(mContext.getContentResolver(), 3156 Settings.Global.CAPTIVE_PORTAL_SERVER); 3157 if (server == null) { 3158 server = "clients3.google.com"; 3159 } 3160 return "http://" + server + "/generate_204"; 3161 } 3162 3163 /** 3164 * Detect if its possible to connect to the http url. DNS based detection techniques 3165 * do not work at all hotspots. The best way to check is to perform a request to 3166 * a known address that fetches the data we expect. 3167 */ 3168 private synchronized Integer isMobileOk(Params params) { 3169 Integer result = CMP_RESULT_CODE_NO_CONNECTION; 3170 Uri orgUri = Uri.parse(params.mUrl); 3171 Random rand = new Random(); 3172 mParams = params; 3173 3174 if (mCs.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false) { 3175 result = CMP_RESULT_CODE_NO_CONNECTION; 3176 log("isMobileOk: X not mobile capable result=" + result); 3177 return result; 3178 } 3179 3180 if (mCs.mIsStartingProvisioning.get()) { 3181 result = CMP_RESULT_CODE_IS_PROVISIONING; 3182 log("isMobileOk: X is provisioning result=" + result); 3183 return result; 3184 } 3185 3186 // See if we've already determined we've got a provisioning connection, 3187 // if so we don't need to do anything active. 3188 MobileDataStateTracker mdstDefault = (MobileDataStateTracker) 3189 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3190 boolean isDefaultProvisioning = mdstDefault.isProvisioningNetwork(); 3191 log("isMobileOk: isDefaultProvisioning=" + isDefaultProvisioning); 3192 3193 MobileDataStateTracker mdstHipri = (MobileDataStateTracker) 3194 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3195 boolean isHipriProvisioning = mdstHipri.isProvisioningNetwork(); 3196 log("isMobileOk: isHipriProvisioning=" + isHipriProvisioning); 3197 3198 if (isDefaultProvisioning || isHipriProvisioning) { 3199 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3200 log("isMobileOk: X default || hipri is provisioning result=" + result); 3201 return result; 3202 } 3203 3204 try { 3205 // Continue trying to connect until time has run out 3206 long endTime = SystemClock.elapsedRealtime() + params.mTimeOutMs; 3207 3208 if (!mCs.isMobileDataStateTrackerReady()) { 3209 // Wait for MobileDataStateTracker to be ready. 3210 if (DBG) log("isMobileOk: mdst is not ready"); 3211 while(SystemClock.elapsedRealtime() < endTime) { 3212 if (mCs.isMobileDataStateTrackerReady()) { 3213 // Enable fail fast as we'll do retries here and use a 3214 // hipri connection so the default connection stays active. 3215 if (DBG) log("isMobileOk: mdst ready, enable fail fast of mobile data"); 3216 mCs.setEnableFailFastMobileData(DctConstants.ENABLED); 3217 break; 3218 } 3219 sleep(POLLING_SLEEP_SEC); 3220 } 3221 } 3222 3223 log("isMobileOk: start hipri url=" + params.mUrl); 3224 3225 // First wait until we can start using hipri 3226 Binder binder = new Binder(); 3227/* 3228 while(SystemClock.elapsedRealtime() < endTime) { 3229 int ret = mCs.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3230 Phone.FEATURE_ENABLE_HIPRI, binder); 3231 if ((ret == PhoneConstants.APN_ALREADY_ACTIVE) 3232 || (ret == PhoneConstants.APN_REQUEST_STARTED)) { 3233 log("isMobileOk: hipri started"); 3234 break; 3235 } 3236 if (VDBG) log("isMobileOk: hipri not started yet"); 3237 result = CMP_RESULT_CODE_NO_CONNECTION; 3238 sleep(POLLING_SLEEP_SEC); 3239 } 3240*/ 3241 // Continue trying to connect until time has run out 3242 while(SystemClock.elapsedRealtime() < endTime) { 3243 try { 3244 // Wait for hipri to connect. 3245 // TODO: Don't poll and handle situation where hipri fails 3246 // because default is retrying. See b/9569540 3247 NetworkInfo.State state = mCs 3248 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3249 if (state != NetworkInfo.State.CONNECTED) { 3250 if (true/*VDBG*/) { 3251 log("isMobileOk: not connected ni=" + 3252 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3253 } 3254 sleep(POLLING_SLEEP_SEC); 3255 result = CMP_RESULT_CODE_NO_CONNECTION; 3256 continue; 3257 } 3258 3259 // Hipri has started check if this is a provisioning url 3260 MobileDataStateTracker mdst = (MobileDataStateTracker) 3261 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3262 if (mdst.isProvisioningNetwork()) { 3263 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3264 if (DBG) log("isMobileOk: X isProvisioningNetwork result=" + result); 3265 return result; 3266 } else { 3267 if (DBG) log("isMobileOk: isProvisioningNetwork is false, continue"); 3268 } 3269 3270 // Get of the addresses associated with the url host. We need to use the 3271 // address otherwise HttpURLConnection object will use the name to get 3272 // the addresses and will try every address but that will bypass the 3273 // route to host we setup and the connection could succeed as the default 3274 // interface might be connected to the internet via wifi or other interface. 3275 InetAddress[] addresses; 3276 try { 3277 addresses = InetAddress.getAllByName(orgUri.getHost()); 3278 } catch (UnknownHostException e) { 3279 result = CMP_RESULT_CODE_NO_DNS; 3280 log("isMobileOk: X UnknownHostException result=" + result); 3281 return result; 3282 } 3283 log("isMobileOk: addresses=" + inetAddressesToString(addresses)); 3284 3285 // Get the type of addresses supported by this link 3286 LinkProperties lp = mCs.getLinkPropertiesForTypeInternal( 3287 ConnectivityManager.TYPE_MOBILE_HIPRI); 3288 boolean linkHasIpv4 = lp.hasIPv4Address(); 3289 boolean linkHasIpv6 = lp.hasGlobalIPv6Address(); 3290 log("isMobileOk: linkHasIpv4=" + linkHasIpv4 3291 + " linkHasIpv6=" + linkHasIpv6); 3292 3293 final ArrayList<InetAddress> validAddresses = 3294 new ArrayList<InetAddress>(addresses.length); 3295 3296 for (InetAddress addr : addresses) { 3297 if (((addr instanceof Inet4Address) && linkHasIpv4) || 3298 ((addr instanceof Inet6Address) && linkHasIpv6)) { 3299 validAddresses.add(addr); 3300 } 3301 } 3302 3303 if (validAddresses.size() == 0) { 3304 return CMP_RESULT_CODE_NO_CONNECTION; 3305 } 3306 3307 int addrTried = 0; 3308 while (true) { 3309 // Loop through at most MAX_LOOPS valid addresses or until 3310 // we run out of time 3311 if (addrTried++ >= MAX_LOOPS) { 3312 log("isMobileOk: too many loops tried - giving up"); 3313 break; 3314 } 3315 if (SystemClock.elapsedRealtime() >= endTime) { 3316 log("isMobileOk: spend too much time - giving up"); 3317 break; 3318 } 3319 3320 InetAddress hostAddr = validAddresses.get(rand.nextInt( 3321 validAddresses.size())); 3322 3323 // Make a route to host so we check the specific interface. 3324 if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI, 3325 hostAddr.getAddress())) { 3326 // Wait a short time to be sure the route is established ?? 3327 log("isMobileOk:" 3328 + " wait to establish route to hostAddr=" + hostAddr); 3329 sleep(NET_ROUTE_ESTABLISHMENT_SLEEP_SEC); 3330 } else { 3331 log("isMobileOk:" 3332 + " could not establish route to hostAddr=" + hostAddr); 3333 // Wait a short time before the next attempt 3334 sleep(NET_ERROR_SLEEP_SEC); 3335 continue; 3336 } 3337 3338 // Rewrite the url to have numeric address to use the specific route 3339 // using http for half the attempts and https for the other half. 3340 // Doing https first and http second as on a redirected walled garden 3341 // such as t-mobile uses we get a SocketTimeoutException: "SSL 3342 // handshake timed out" which we declare as 3343 // CMP_RESULT_CODE_NO_TCP_CONNECTION. We could change this, but by 3344 // having http second we will be using logic used for some time. 3345 URL newUrl; 3346 String scheme = (addrTried <= (MAX_LOOPS/2)) ? "https" : "http"; 3347 newUrl = new URL(scheme, hostAddr.getHostAddress(), 3348 orgUri.getPath()); 3349 log("isMobileOk: newUrl=" + newUrl); 3350 3351 HttpURLConnection urlConn = null; 3352 try { 3353 // Open the connection set the request headers and get the response 3354 urlConn = (HttpURLConnection)newUrl.openConnection( 3355 java.net.Proxy.NO_PROXY); 3356 if (scheme.equals("https")) { 3357 ((HttpsURLConnection)urlConn).setHostnameVerifier( 3358 new CheckMpHostnameVerifier(orgUri)); 3359 } 3360 urlConn.setInstanceFollowRedirects(false); 3361 urlConn.setConnectTimeout(SOCKET_TIMEOUT_MS); 3362 urlConn.setReadTimeout(SOCKET_TIMEOUT_MS); 3363 urlConn.setUseCaches(false); 3364 urlConn.setAllowUserInteraction(false); 3365 // Set the "Connection" to "Close" as by default "Keep-Alive" 3366 // is used which is useless in this case. 3367 urlConn.setRequestProperty("Connection", "close"); 3368 int responseCode = urlConn.getResponseCode(); 3369 3370 // For debug display the headers 3371 Map<String, List<String>> headers = urlConn.getHeaderFields(); 3372 log("isMobileOk: headers=" + headers); 3373 3374 // Close the connection 3375 urlConn.disconnect(); 3376 urlConn = null; 3377 3378 if (mTestingFailures) { 3379 // Pretend no connection, this tests using http and https 3380 result = CMP_RESULT_CODE_NO_CONNECTION; 3381 log("isMobileOk: TESTING_FAILURES, pretend no connction"); 3382 continue; 3383 } 3384 3385 if (responseCode == 204) { 3386 // Return 3387 result = CMP_RESULT_CODE_CONNECTABLE; 3388 log("isMobileOk: X got expected responseCode=" + responseCode 3389 + " result=" + result); 3390 return result; 3391 } else { 3392 // Retry to be sure this was redirected, we've gotten 3393 // occasions where a server returned 200 even though 3394 // the device didn't have a "warm" sim. 3395 log("isMobileOk: not expected responseCode=" + responseCode); 3396 // TODO - it would be nice in the single-address case to do 3397 // another DNS resolve here, but flushing the cache is a bit 3398 // heavy-handed. 3399 result = CMP_RESULT_CODE_REDIRECTED; 3400 } 3401 } catch (Exception e) { 3402 log("isMobileOk: HttpURLConnection Exception" + e); 3403 result = CMP_RESULT_CODE_NO_TCP_CONNECTION; 3404 if (urlConn != null) { 3405 urlConn.disconnect(); 3406 urlConn = null; 3407 } 3408 sleep(NET_ERROR_SLEEP_SEC); 3409 continue; 3410 } 3411 } 3412 log("isMobileOk: X loops|timed out result=" + result); 3413 return result; 3414 } catch (Exception e) { 3415 log("isMobileOk: Exception e=" + e); 3416 continue; 3417 } 3418 } 3419 log("isMobileOk: timed out"); 3420 } finally { 3421 log("isMobileOk: F stop hipri"); 3422 mCs.setEnableFailFastMobileData(DctConstants.DISABLED); 3423// mCs.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3424// Phone.FEATURE_ENABLE_HIPRI); 3425 3426 // Wait for hipri to disconnect. 3427 long endTime = SystemClock.elapsedRealtime() + 5000; 3428 3429 while(SystemClock.elapsedRealtime() < endTime) { 3430 NetworkInfo.State state = mCs 3431 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3432 if (state != NetworkInfo.State.DISCONNECTED) { 3433 if (VDBG) { 3434 log("isMobileOk: connected ni=" + 3435 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3436 } 3437 sleep(POLLING_SLEEP_SEC); 3438 continue; 3439 } 3440 } 3441 3442 log("isMobileOk: X result=" + result); 3443 } 3444 return result; 3445 } 3446 3447 @Override 3448 protected Integer doInBackground(Params... params) { 3449 return isMobileOk(params[0]); 3450 } 3451 3452 @Override 3453 protected void onPostExecute(Integer result) { 3454 log("onPostExecute: result=" + result); 3455 if ((mParams != null) && (mParams.mCb != null)) { 3456 mParams.mCb.onComplete(result); 3457 } 3458 } 3459 3460 private String inetAddressesToString(InetAddress[] addresses) { 3461 StringBuffer sb = new StringBuffer(); 3462 boolean firstTime = true; 3463 for(InetAddress addr : addresses) { 3464 if (firstTime) { 3465 firstTime = false; 3466 } else { 3467 sb.append(","); 3468 } 3469 sb.append(addr); 3470 } 3471 return sb.toString(); 3472 } 3473 3474 private void printNetworkInfo() { 3475 boolean hasIccCard = mTm.hasIccCard(); 3476 int simState = mTm.getSimState(); 3477 log("hasIccCard=" + hasIccCard 3478 + " simState=" + simState); 3479 NetworkInfo[] ni = mCs.getAllNetworkInfo(); 3480 if (ni != null) { 3481 log("ni.length=" + ni.length); 3482 for (NetworkInfo netInfo: ni) { 3483 log("netInfo=" + netInfo.toString()); 3484 } 3485 } else { 3486 log("no network info ni=null"); 3487 } 3488 } 3489 3490 /** 3491 * Sleep for a few seconds then return. 3492 * @param seconds 3493 */ 3494 private static void sleep(int seconds) { 3495 long stopTime = System.nanoTime() + (seconds * 1000000000); 3496 long sleepTime; 3497 while ((sleepTime = stopTime - System.nanoTime()) > 0) { 3498 try { 3499 Thread.sleep(sleepTime / 1000000); 3500 } catch (InterruptedException ignored) { 3501 } 3502 } 3503 } 3504 3505 private static void log(String s) { 3506 Slog.d(ConnectivityService.TAG, "[" + CHECKMP_TAG + "] " + s); 3507 } 3508 } 3509 3510 // TODO: Move to ConnectivityManager and make public? 3511 private static final String CONNECTED_TO_PROVISIONING_NETWORK_ACTION = 3512 "com.android.server.connectivityservice.CONNECTED_TO_PROVISIONING_NETWORK_ACTION"; 3513 3514 private BroadcastReceiver mProvisioningReceiver = new BroadcastReceiver() { 3515 @Override 3516 public void onReceive(Context context, Intent intent) { 3517 if (intent.getAction().equals(CONNECTED_TO_PROVISIONING_NETWORK_ACTION)) { 3518 handleMobileProvisioningAction(intent.getStringExtra("EXTRA_URL")); 3519 } 3520 } 3521 }; 3522 3523 private void handleMobileProvisioningAction(String url) { 3524 // Mark notification as not visible 3525 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3526 3527 // Check airplane mode 3528 boolean isAirplaneModeOn = Settings.System.getInt(mContext.getContentResolver(), 3529 Settings.Global.AIRPLANE_MODE_ON, 0) == 1; 3530 // If provisioning network and not in airplane mode handle as a special case, 3531 // otherwise launch browser with the intent directly. 3532 if (mIsProvisioningNetwork.get() && !isAirplaneModeOn) { 3533 if (DBG) log("handleMobileProvisioningAction: on prov network enable then launch"); 3534 mIsProvisioningNetwork.set(false); 3535// mIsStartingProvisioning.set(true); 3536// MobileDataStateTracker mdst = (MobileDataStateTracker) 3537// mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3538 // Radio was disabled on CMP_RESULT_CODE_PROVISIONING_NETWORK, enable it here 3539// mdst.setRadio(true); 3540// mdst.setEnableFailFastMobileData(DctConstants.ENABLED); 3541// mdst.enableMobileProvisioning(url); 3542 } else { 3543 if (DBG) log("handleMobileProvisioningAction: not prov network"); 3544 mIsProvisioningNetwork.set(false); 3545 // Check for apps that can handle provisioning first 3546 Intent provisioningIntent = new Intent(TelephonyIntents.ACTION_CARRIER_SETUP); 3547 List<String> carrierPackages = 3548 mTelephonyManager.getCarrierPackageNamesForBroadcastIntent(provisioningIntent); 3549 if (carrierPackages != null && !carrierPackages.isEmpty()) { 3550 if (carrierPackages.size() != 1) { 3551 if (DBG) log("Multiple matching carrier apps found, launching the first."); 3552 } 3553 provisioningIntent.setPackage(carrierPackages.get(0)); 3554 provisioningIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3555 Intent.FLAG_ACTIVITY_NEW_TASK); 3556 mContext.startActivity(provisioningIntent); 3557 } else { 3558 // If no apps exist, use standard URL ACTION_VIEW method 3559 Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, 3560 Intent.CATEGORY_APP_BROWSER); 3561 newIntent.setData(Uri.parse(url)); 3562 newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3563 Intent.FLAG_ACTIVITY_NEW_TASK); 3564 try { 3565 mContext.startActivity(newIntent); 3566 } catch (ActivityNotFoundException e) { 3567 loge("handleMobileProvisioningAction: startActivity failed" + e); 3568 } 3569 } 3570 } 3571 } 3572 3573 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 3574 private volatile boolean mIsNotificationVisible = false; 3575 3576 private void setProvNotificationVisible(boolean visible, int networkType, String extraInfo, 3577 String url) { 3578 if (DBG) { 3579 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 3580 + " extraInfo=" + extraInfo + " url=" + url); 3581 } 3582 Intent intent = null; 3583 PendingIntent pendingIntent = null; 3584 if (visible) { 3585 switch (networkType) { 3586 case ConnectivityManager.TYPE_WIFI: 3587 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3588 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3589 Intent.FLAG_ACTIVITY_NEW_TASK); 3590 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3591 break; 3592 case ConnectivityManager.TYPE_MOBILE: 3593 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3594 intent = new Intent(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 3595 intent.putExtra("EXTRA_URL", url); 3596 intent.setFlags(0); 3597 pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 3598 break; 3599 default: 3600 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3601 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3602 Intent.FLAG_ACTIVITY_NEW_TASK); 3603 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3604 break; 3605 } 3606 } 3607 // Concatenate the range of types onto the range of NetIDs. 3608 int id = MAX_NET_ID + 1 + (networkType - ConnectivityManager.TYPE_NONE); 3609 setProvNotificationVisibleIntent(visible, id, networkType, extraInfo, pendingIntent); 3610 } 3611 3612 /** 3613 * Show or hide network provisioning notificaitons. 3614 * 3615 * @param id an identifier that uniquely identifies this notification. This must match 3616 * between show and hide calls. We use the NetID value but for legacy callers 3617 * we concatenate the range of types with the range of NetIDs. 3618 */ 3619 private void setProvNotificationVisibleIntent(boolean visible, int id, int networkType, 3620 String extraInfo, PendingIntent intent) { 3621 if (DBG) { 3622 log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + 3623 networkType + " extraInfo=" + extraInfo); 3624 } 3625 3626 Resources r = Resources.getSystem(); 3627 NotificationManager notificationManager = (NotificationManager) mContext 3628 .getSystemService(Context.NOTIFICATION_SERVICE); 3629 3630 if (visible) { 3631 CharSequence title; 3632 CharSequence details; 3633 int icon; 3634 Notification notification = new Notification(); 3635 switch (networkType) { 3636 case ConnectivityManager.TYPE_WIFI: 3637 title = r.getString(R.string.wifi_available_sign_in, 0); 3638 details = r.getString(R.string.network_available_sign_in_detailed, 3639 extraInfo); 3640 icon = R.drawable.stat_notify_wifi_in_range; 3641 break; 3642 case ConnectivityManager.TYPE_MOBILE: 3643 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3644 title = r.getString(R.string.network_available_sign_in, 0); 3645 // TODO: Change this to pull from NetworkInfo once a printable 3646 // name has been added to it 3647 details = mTelephonyManager.getNetworkOperatorName(); 3648 icon = R.drawable.stat_notify_rssi_in_range; 3649 break; 3650 default: 3651 title = r.getString(R.string.network_available_sign_in, 0); 3652 details = r.getString(R.string.network_available_sign_in_detailed, 3653 extraInfo); 3654 icon = R.drawable.stat_notify_rssi_in_range; 3655 break; 3656 } 3657 3658 notification.when = 0; 3659 notification.icon = icon; 3660 notification.flags = Notification.FLAG_AUTO_CANCEL; 3661 notification.tickerText = title; 3662 notification.color = mContext.getResources().getColor( 3663 com.android.internal.R.color.system_notification_accent_color); 3664 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 3665 notification.contentIntent = intent; 3666 3667 try { 3668 notificationManager.notify(NOTIFICATION_ID, id, notification); 3669 } catch (NullPointerException npe) { 3670 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 3671 npe.printStackTrace(); 3672 } 3673 } else { 3674 try { 3675 notificationManager.cancel(NOTIFICATION_ID, id); 3676 } catch (NullPointerException npe) { 3677 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 3678 npe.printStackTrace(); 3679 } 3680 } 3681 mIsNotificationVisible = visible; 3682 } 3683 3684 /** Location to an updatable file listing carrier provisioning urls. 3685 * An example: 3686 * 3687 * <?xml version="1.0" encoding="utf-8"?> 3688 * <provisioningUrls> 3689 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 3690 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 3691 * </provisioningUrls> 3692 */ 3693 private static final String PROVISIONING_URL_PATH = 3694 "/data/misc/radio/provisioning_urls.xml"; 3695 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 3696 3697 /** XML tag for root element. */ 3698 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 3699 /** XML tag for individual url */ 3700 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 3701 /** XML tag for redirected url */ 3702 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 3703 /** XML attribute for mcc */ 3704 private static final String ATTR_MCC = "mcc"; 3705 /** XML attribute for mnc */ 3706 private static final String ATTR_MNC = "mnc"; 3707 3708 private static final int REDIRECTED_PROVISIONING = 1; 3709 private static final int PROVISIONING = 2; 3710 3711 private String getProvisioningUrlBaseFromFile(int type) { 3712 FileReader fileReader = null; 3713 XmlPullParser parser = null; 3714 Configuration config = mContext.getResources().getConfiguration(); 3715 String tagType; 3716 3717 switch (type) { 3718 case PROVISIONING: 3719 tagType = TAG_PROVISIONING_URL; 3720 break; 3721 case REDIRECTED_PROVISIONING: 3722 tagType = TAG_REDIRECTED_URL; 3723 break; 3724 default: 3725 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 3726 type); 3727 } 3728 3729 try { 3730 fileReader = new FileReader(mProvisioningUrlFile); 3731 parser = Xml.newPullParser(); 3732 parser.setInput(fileReader); 3733 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 3734 3735 while (true) { 3736 XmlUtils.nextElement(parser); 3737 3738 String element = parser.getName(); 3739 if (element == null) break; 3740 3741 if (element.equals(tagType)) { 3742 String mcc = parser.getAttributeValue(null, ATTR_MCC); 3743 try { 3744 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 3745 String mnc = parser.getAttributeValue(null, ATTR_MNC); 3746 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 3747 parser.next(); 3748 if (parser.getEventType() == XmlPullParser.TEXT) { 3749 return parser.getText(); 3750 } 3751 } 3752 } 3753 } catch (NumberFormatException e) { 3754 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 3755 } 3756 } 3757 } 3758 return null; 3759 } catch (FileNotFoundException e) { 3760 loge("Carrier Provisioning Urls file not found"); 3761 } catch (XmlPullParserException e) { 3762 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 3763 } catch (IOException e) { 3764 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 3765 } finally { 3766 if (fileReader != null) { 3767 try { 3768 fileReader.close(); 3769 } catch (IOException e) {} 3770 } 3771 } 3772 return null; 3773 } 3774 3775 @Override 3776 public String getMobileRedirectedProvisioningUrl() { 3777 enforceConnectivityInternalPermission(); 3778 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 3779 if (TextUtils.isEmpty(url)) { 3780 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 3781 } 3782 return url; 3783 } 3784 3785 @Override 3786 public String getMobileProvisioningUrl() { 3787 enforceConnectivityInternalPermission(); 3788 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 3789 if (TextUtils.isEmpty(url)) { 3790 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 3791 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 3792 } else { 3793 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 3794 } 3795 // populate the iccid, imei and phone number in the provisioning url. 3796 if (!TextUtils.isEmpty(url)) { 3797 String phoneNumber = mTelephonyManager.getLine1Number(); 3798 if (TextUtils.isEmpty(phoneNumber)) { 3799 phoneNumber = "0000000000"; 3800 } 3801 url = String.format(url, 3802 mTelephonyManager.getSimSerialNumber() /* ICCID */, 3803 mTelephonyManager.getDeviceId() /* IMEI */, 3804 phoneNumber /* Phone numer */); 3805 } 3806 3807 return url; 3808 } 3809 3810 @Override 3811 public void setProvisioningNotificationVisible(boolean visible, int networkType, 3812 String extraInfo, String url) { 3813 enforceConnectivityInternalPermission(); 3814 setProvNotificationVisible(visible, networkType, extraInfo, url); 3815 } 3816 3817 @Override 3818 public void setAirplaneMode(boolean enable) { 3819 enforceConnectivityInternalPermission(); 3820 final long ident = Binder.clearCallingIdentity(); 3821 try { 3822 final ContentResolver cr = mContext.getContentResolver(); 3823 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 3824 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 3825 intent.putExtra("state", enable); 3826 mContext.sendBroadcast(intent); 3827 } finally { 3828 Binder.restoreCallingIdentity(ident); 3829 } 3830 } 3831 3832 private void onUserStart(int userId) { 3833 synchronized(mVpns) { 3834 Vpn userVpn = mVpns.get(userId); 3835 if (userVpn != null) { 3836 loge("Starting user already has a VPN"); 3837 return; 3838 } 3839 userVpn = new Vpn(mHandler.getLooper(), mContext, mNetd, this, userId); 3840 mVpns.put(userId, userVpn); 3841 } 3842 } 3843 3844 private void onUserStop(int userId) { 3845 synchronized(mVpns) { 3846 Vpn userVpn = mVpns.get(userId); 3847 if (userVpn == null) { 3848 loge("Stopping user has no VPN"); 3849 return; 3850 } 3851 mVpns.delete(userId); 3852 } 3853 } 3854 3855 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 3856 @Override 3857 public void onReceive(Context context, Intent intent) { 3858 final String action = intent.getAction(); 3859 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3860 if (userId == UserHandle.USER_NULL) return; 3861 3862 if (Intent.ACTION_USER_STARTING.equals(action)) { 3863 onUserStart(userId); 3864 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 3865 onUserStop(userId); 3866 } 3867 } 3868 }; 3869 3870 @Override 3871 public LinkQualityInfo getLinkQualityInfo(int networkType) { 3872 enforceAccessPermission(); 3873 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 3874 return mNetTrackers[networkType].getLinkQualityInfo(); 3875 } else { 3876 return null; 3877 } 3878 } 3879 3880 @Override 3881 public LinkQualityInfo getActiveLinkQualityInfo() { 3882 enforceAccessPermission(); 3883 if (isNetworkTypeValid(mActiveDefaultNetwork) && 3884 mNetTrackers[mActiveDefaultNetwork] != null) { 3885 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 3886 } else { 3887 return null; 3888 } 3889 } 3890 3891 @Override 3892 public LinkQualityInfo[] getAllLinkQualityInfo() { 3893 enforceAccessPermission(); 3894 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 3895 for (NetworkStateTracker tracker : mNetTrackers) { 3896 if (tracker != null) { 3897 LinkQualityInfo li = tracker.getLinkQualityInfo(); 3898 if (li != null) { 3899 result.add(li); 3900 } 3901 } 3902 } 3903 3904 return result.toArray(new LinkQualityInfo[result.size()]); 3905 } 3906 3907 /* Infrastructure for network sampling */ 3908 3909 private void handleNetworkSamplingTimeout() { 3910 3911 log("Sampling interval elapsed, updating statistics .."); 3912 3913 // initialize list of interfaces .. 3914 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 3915 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 3916 for (NetworkStateTracker tracker : mNetTrackers) { 3917 if (tracker != null) { 3918 String ifaceName = tracker.getNetworkInterfaceName(); 3919 if (ifaceName != null) { 3920 mapIfaceToSample.put(ifaceName, null); 3921 } 3922 } 3923 } 3924 3925 // Read samples for all interfaces 3926 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 3927 3928 // process samples for all networks 3929 for (NetworkStateTracker tracker : mNetTrackers) { 3930 if (tracker != null) { 3931 String ifaceName = tracker.getNetworkInterfaceName(); 3932 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 3933 if (ss != null) { 3934 // end the previous sampling cycle 3935 tracker.stopSampling(ss); 3936 // start a new sampling cycle .. 3937 tracker.startSampling(ss); 3938 } 3939 } 3940 } 3941 3942 log("Done."); 3943 3944 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 3945 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 3946 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 3947 3948 if (DBG) log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 3949 3950 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 3951 } 3952 3953 /** 3954 * Sets a network sampling alarm. 3955 */ 3956 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 3957 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 3958 int alarmType; 3959 if (Resources.getSystem().getBoolean( 3960 R.bool.config_networkSamplingWakesDevice)) { 3961 alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP; 3962 } else { 3963 alarmType = AlarmManager.ELAPSED_REALTIME; 3964 } 3965 mAlarmManager.set(alarmType, wakeupTime, intent); 3966 } 3967 3968 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 3969 new HashMap<Messenger, NetworkFactoryInfo>(); 3970 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 3971 new HashMap<NetworkRequest, NetworkRequestInfo>(); 3972 3973 private static class NetworkFactoryInfo { 3974 public final String name; 3975 public final Messenger messenger; 3976 public final AsyncChannel asyncChannel; 3977 3978 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 3979 this.name = name; 3980 this.messenger = messenger; 3981 this.asyncChannel = asyncChannel; 3982 } 3983 } 3984 3985 /** 3986 * Tracks info about the requester. 3987 * Also used to notice when the calling process dies so we can self-expire 3988 */ 3989 private class NetworkRequestInfo implements IBinder.DeathRecipient { 3990 static final boolean REQUEST = true; 3991 static final boolean LISTEN = false; 3992 3993 final NetworkRequest request; 3994 IBinder mBinder; 3995 final int mPid; 3996 final int mUid; 3997 final Messenger messenger; 3998 final boolean isRequest; 3999 4000 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 4001 super(); 4002 messenger = m; 4003 request = r; 4004 mBinder = binder; 4005 mPid = getCallingPid(); 4006 mUid = getCallingUid(); 4007 this.isRequest = isRequest; 4008 4009 try { 4010 mBinder.linkToDeath(this, 0); 4011 } catch (RemoteException e) { 4012 binderDied(); 4013 } 4014 } 4015 4016 void unlinkDeathRecipient() { 4017 mBinder.unlinkToDeath(this, 0); 4018 } 4019 4020 public void binderDied() { 4021 log("ConnectivityService NetworkRequestInfo binderDied(" + 4022 request + ", " + mBinder + ")"); 4023 releaseNetworkRequest(request); 4024 } 4025 4026 public String toString() { 4027 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 4028 mPid + " for " + request; 4029 } 4030 } 4031 4032 @Override 4033 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 4034 Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { 4035 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 4036 == false) { 4037 enforceConnectivityInternalPermission(); 4038 } else { 4039 enforceChangePermission(); 4040 } 4041 4042 networkCapabilities = new NetworkCapabilities(networkCapabilities); 4043 4044 // if UID is restricted, don't allow them to bring up metered APNs 4045 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED) 4046 == false) { 4047 final int uidRules; 4048 synchronized(mRulesLock) { 4049 uidRules = mUidRules.get(Binder.getCallingUid(), RULE_ALLOW_ALL); 4050 } 4051 if ((uidRules & RULE_REJECT_METERED) != 0) { 4052 // we could silently fail or we can filter the available nets to only give 4053 // them those they have access to. Chose the more useful 4054 networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 4055 } 4056 } 4057 4058 if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { 4059 throw new IllegalArgumentException("Bad timeout specified"); 4060 } 4061 NetworkRequest networkRequest = new NetworkRequest(networkCapabilities, legacyType, 4062 nextNetworkRequestId()); 4063 if (DBG) log("requestNetwork for " + networkRequest); 4064 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4065 NetworkRequestInfo.REQUEST); 4066 4067 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 4068 if (timeoutMs > 0) { 4069 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 4070 nri), timeoutMs); 4071 } 4072 return networkRequest; 4073 } 4074 4075 @Override 4076 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 4077 PendingIntent operation) { 4078 // TODO 4079 return null; 4080 } 4081 4082 @Override 4083 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 4084 Messenger messenger, IBinder binder) { 4085 enforceAccessPermission(); 4086 4087 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 4088 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 4089 if (DBG) log("listenForNetwork for " + networkRequest); 4090 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4091 NetworkRequestInfo.LISTEN); 4092 4093 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 4094 return networkRequest; 4095 } 4096 4097 @Override 4098 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 4099 PendingIntent operation) { 4100 } 4101 4102 @Override 4103 public void releaseNetworkRequest(NetworkRequest networkRequest) { 4104 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), 4105 0, networkRequest)); 4106 } 4107 4108 @Override 4109 public void registerNetworkFactory(Messenger messenger, String name) { 4110 enforceConnectivityInternalPermission(); 4111 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 4112 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 4113 } 4114 4115 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 4116 if (VDBG) log("Got NetworkFactory Messenger for " + nfi.name); 4117 mNetworkFactoryInfos.put(nfi.messenger, nfi); 4118 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 4119 } 4120 4121 @Override 4122 public void unregisterNetworkFactory(Messenger messenger) { 4123 enforceConnectivityInternalPermission(); 4124 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 4125 } 4126 4127 private void handleUnregisterNetworkFactory(Messenger messenger) { 4128 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 4129 if (nfi == null) { 4130 if (VDBG) log("Failed to find Messenger in unregisterNetworkFactory"); 4131 return; 4132 } 4133 if (VDBG) log("unregisterNetworkFactory for " + nfi.name); 4134 } 4135 4136 /** 4137 * NetworkAgentInfo supporting a request by requestId. 4138 * These have already been vetted (their Capabilities satisfy the request) 4139 * and the are the highest scored network available. 4140 * the are keyed off the Requests requestId. 4141 */ 4142 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 4143 new SparseArray<NetworkAgentInfo>(); 4144 4145 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 4146 new SparseArray<NetworkAgentInfo>(); 4147 4148 // NetworkAgentInfo keyed off its connecting messenger 4149 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 4150 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 4151 new HashMap<Messenger, NetworkAgentInfo>(); 4152 4153 private final NetworkRequest mDefaultRequest; 4154 4155 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 4156 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 4157 } 4158 4159 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 4160 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 4161 int currentScore, NetworkMisc networkMisc) { 4162 enforceConnectivityInternalPermission(); 4163 4164 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), 4165 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 4166 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler, 4167 networkMisc); 4168 synchronized (this) { 4169 nai.networkMonitor.systemReady = mSystemReady; 4170 } 4171 if (VDBG) log("registerNetworkAgent " + nai); 4172 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 4173 } 4174 4175 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 4176 if (VDBG) log("Got NetworkAgent Messenger"); 4177 mNetworkAgentInfos.put(na.messenger, na); 4178 assignNextNetId(na); 4179 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 4180 NetworkInfo networkInfo = na.networkInfo; 4181 na.networkInfo = null; 4182 updateNetworkInfo(na, networkInfo); 4183 } 4184 4185 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 4186 LinkProperties newLp = networkAgent.linkProperties; 4187 int netId = networkAgent.network.netId; 4188 4189 updateInterfaces(newLp, oldLp, netId); 4190 updateMtu(newLp, oldLp); 4191 updateTcpBufferSizes(networkAgent); 4192 // TODO - figure out what to do for clat 4193// for (LinkProperties lp : newLp.getStackedLinks()) { 4194// updateMtu(lp, null); 4195// } 4196 final boolean flushDns = updateRoutes(newLp, oldLp, netId); 4197 updateDnses(newLp, oldLp, netId, flushDns); 4198 updateClat(newLp, oldLp, networkAgent); 4199 if (isDefaultNetwork(networkAgent)) handleApplyDefaultProxy(newLp.getHttpProxy()); 4200 } 4201 4202 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { 4203 // Update 464xlat state. 4204 if (mClat.requiresClat(na)) { 4205 4206 // If the connection was previously using clat, but is not using it now, stop the clat 4207 // daemon. Normally, this happens automatically when the connection disconnects, but if 4208 // the disconnect is not reported, or if the connection's LinkProperties changed for 4209 // some other reason (e.g., handoff changes the IP addresses on the link), it would 4210 // still be running. If it's not running, then stopping it is a no-op. 4211 if (Nat464Xlat.isRunningClat(oldLp) && !Nat464Xlat.isRunningClat(newLp)) { 4212 mClat.stopClat(); 4213 } 4214 // If the link requires clat to be running, then start the daemon now. 4215 if (na.networkInfo.isConnected()) { 4216 mClat.startClat(na); 4217 } else { 4218 mClat.stopClat(); 4219 } 4220 } 4221 } 4222 4223 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 4224 CompareResult<String> interfaceDiff = new CompareResult<String>(); 4225 if (oldLp != null) { 4226 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 4227 } else if (newLp != null) { 4228 interfaceDiff.added = newLp.getAllInterfaceNames(); 4229 } 4230 for (String iface : interfaceDiff.added) { 4231 try { 4232 mNetd.addInterfaceToNetwork(iface, netId); 4233 } catch (Exception e) { 4234 loge("Exception adding interface: " + e); 4235 } 4236 } 4237 for (String iface : interfaceDiff.removed) { 4238 try { 4239 mNetd.removeInterfaceFromNetwork(iface, netId); 4240 } catch (Exception e) { 4241 loge("Exception removing interface: " + e); 4242 } 4243 } 4244 } 4245 4246 /** 4247 * Have netd update routes from oldLp to newLp. 4248 * @return true if routes changed between oldLp and newLp 4249 */ 4250 private boolean updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 4251 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 4252 if (oldLp != null) { 4253 routeDiff = oldLp.compareAllRoutes(newLp); 4254 } else if (newLp != null) { 4255 routeDiff.added = newLp.getAllRoutes(); 4256 } 4257 4258 // add routes before removing old in case it helps with continuous connectivity 4259 4260 // do this twice, adding non-nexthop routes first, then routes they are dependent on 4261 for (RouteInfo route : routeDiff.added) { 4262 if (route.hasGateway()) continue; 4263 try { 4264 mNetd.addRoute(netId, route); 4265 } catch (Exception e) { 4266 loge("Exception in addRoute for non-gateway: " + e); 4267 } 4268 } 4269 for (RouteInfo route : routeDiff.added) { 4270 if (route.hasGateway() == false) continue; 4271 try { 4272 mNetd.addRoute(netId, route); 4273 } catch (Exception e) { 4274 loge("Exception in addRoute for gateway: " + e); 4275 } 4276 } 4277 4278 for (RouteInfo route : routeDiff.removed) { 4279 try { 4280 mNetd.removeRoute(netId, route); 4281 } catch (Exception e) { 4282 loge("Exception in removeRoute: " + e); 4283 } 4284 } 4285 return !routeDiff.added.isEmpty() || !routeDiff.removed.isEmpty(); 4286 } 4287 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId, boolean flush) { 4288 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 4289 Collection<InetAddress> dnses = newLp.getDnsServers(); 4290 if (dnses.size() == 0 && mDefaultDns != null) { 4291 dnses = new ArrayList(); 4292 dnses.add(mDefaultDns); 4293 if (DBG) { 4294 loge("no dns provided for netId " + netId + ", so using defaults"); 4295 } 4296 } 4297 try { 4298 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 4299 newLp.getDomains()); 4300 } catch (Exception e) { 4301 loge("Exception in setDnsServersForNetwork: " + e); 4302 } 4303 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 4304 if (defaultNai != null && defaultNai.network.netId == netId) { 4305 setDefaultDnsSystemProperties(dnses); 4306 } 4307 flushVmDnsCache(); 4308 } else if (flush) { 4309 try { 4310 mNetd.flushNetworkDnsCache(netId); 4311 } catch (Exception e) { 4312 loge("Exception in flushNetworkDnsCache: " + e); 4313 } 4314 flushVmDnsCache(); 4315 } 4316 } 4317 4318 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 4319 int last = 0; 4320 for (InetAddress dns : dnses) { 4321 ++last; 4322 String key = "net.dns" + last; 4323 String value = dns.getHostAddress(); 4324 SystemProperties.set(key, value); 4325 } 4326 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 4327 String key = "net.dns" + i; 4328 SystemProperties.set(key, ""); 4329 } 4330 mNumDnsEntries = last; 4331 } 4332 4333 4334 private void updateCapabilities(NetworkAgentInfo networkAgent, 4335 NetworkCapabilities networkCapabilities) { 4336 // TODO - what else here? Verify still satisfies everybody? 4337 // Check if satisfies somebody new? call callbacks? 4338 synchronized (networkAgent) { 4339 networkAgent.networkCapabilities = networkCapabilities; 4340 } 4341 } 4342 4343 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 4344 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 4345 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 4346 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 4347 networkRequest); 4348 } 4349 } 4350 4351 private void callCallbackForRequest(NetworkRequestInfo nri, 4352 NetworkAgentInfo networkAgent, int notificationType) { 4353 if (nri.messenger == null) return; // Default request has no msgr 4354 Object o; 4355 int a1 = 0; 4356 int a2 = 0; 4357 switch (notificationType) { 4358 case ConnectivityManager.CALLBACK_LOSING: 4359 a1 = 30 * 1000; // TODO - read this from NetworkMonitor 4360 // fall through 4361 case ConnectivityManager.CALLBACK_PRECHECK: 4362 case ConnectivityManager.CALLBACK_AVAILABLE: 4363 case ConnectivityManager.CALLBACK_LOST: 4364 case ConnectivityManager.CALLBACK_CAP_CHANGED: 4365 case ConnectivityManager.CALLBACK_IP_CHANGED: { 4366 o = new NetworkRequest(nri.request); 4367 a2 = networkAgent.network.netId; 4368 break; 4369 } 4370 case ConnectivityManager.CALLBACK_UNAVAIL: 4371 case ConnectivityManager.CALLBACK_RELEASED: { 4372 o = new NetworkRequest(nri.request); 4373 break; 4374 } 4375 default: { 4376 loge("Unknown notificationType " + notificationType); 4377 return; 4378 } 4379 } 4380 Message msg = Message.obtain(); 4381 msg.arg1 = a1; 4382 msg.arg2 = a2; 4383 msg.obj = o; 4384 msg.what = notificationType; 4385 try { 4386 if (VDBG) log("sending notification " + notificationType + " for " + nri.request); 4387 nri.messenger.send(msg); 4388 } catch (RemoteException e) { 4389 // may occur naturally in the race of binder death. 4390 loge("RemoteException caught trying to send a callback msg for " + nri.request); 4391 } 4392 } 4393 4394 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 4395 if (oldNetwork == null) { 4396 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 4397 return; 4398 } 4399 if (DBG) log("handleLingerComplete for " + oldNetwork.name()); 4400 if (DBG) { 4401 if (oldNetwork.networkRequests.size() != 0) { 4402 loge("Dead network still had " + oldNetwork.networkRequests.size() + " requests"); 4403 } 4404 } 4405 oldNetwork.asyncChannel.disconnect(); 4406 } 4407 4408 private void makeDefault(NetworkAgentInfo newNetwork) { 4409 if (VDBG) log("Switching to new default network: " + newNetwork); 4410 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4411 setupDataActivityTracking(newNetwork); 4412 try { 4413 mNetd.setDefaultNetId(newNetwork.network.netId); 4414 } catch (Exception e) { 4415 loge("Exception setting default network :" + e); 4416 } 4417 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 4418 updateTcpBufferSizes(newNetwork); 4419 } 4420 4421 private void handleConnectionValidated(NetworkAgentInfo newNetwork) { 4422 if (newNetwork == null) { 4423 loge("Unknown NetworkAgentInfo in handleConnectionValidated"); 4424 return; 4425 } 4426 boolean keep = newNetwork.isVPN(); 4427 boolean isNewDefault = false; 4428 if (DBG) log("handleConnectionValidated for "+newNetwork.name()); 4429 // check if any NetworkRequest wants this NetworkAgent 4430 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 4431 if (VDBG) log(" new Network has: " + newNetwork.networkCapabilities); 4432 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 4433 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 4434 if (newNetwork == currentNetwork) { 4435 if (VDBG) log("Network " + newNetwork.name() + " was already satisfying" + 4436 " request " + nri.request.requestId + ". No change."); 4437 keep = true; 4438 continue; 4439 } 4440 4441 // check if it satisfies the NetworkCapabilities 4442 if (VDBG) log(" checking if request is satisfied: " + nri.request); 4443 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 4444 newNetwork.networkCapabilities)) { 4445 if (!nri.isRequest) { 4446 newNetwork.addRequest(nri.request); 4447 continue; 4448 } 4449 // next check if it's better than any current network we're using for 4450 // this request 4451 if (VDBG) { 4452 log("currentScore = " + 4453 (currentNetwork != null ? currentNetwork.currentScore : 0) + 4454 ", newScore = " + newNetwork.currentScore); 4455 } 4456 if (currentNetwork == null || 4457 currentNetwork.currentScore < newNetwork.currentScore) { 4458 if (currentNetwork != null) { 4459 if (VDBG) log(" accepting network in place of " + currentNetwork.name()); 4460 currentNetwork.networkRequests.remove(nri.request.requestId); 4461 currentNetwork.networkLingered.add(nri.request); 4462 affectedNetworks.add(currentNetwork); 4463 } else { 4464 if (VDBG) log(" accepting network in place of null"); 4465 } 4466 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 4467 newNetwork.addRequest(nri.request); 4468 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 4469 mLegacyTypeTracker.add(nri.request.legacyType, newNetwork); 4470 } 4471 keep = true; 4472 // TODO - this could get expensive if we have alot of requests for this 4473 // network. Think about if there is a way to reduce this. Push 4474 // netid->request mapping to each factory? 4475 sendUpdatedScoreToFactories(nri.request, newNetwork.currentScore); 4476 if (mDefaultRequest.requestId == nri.request.requestId) { 4477 isNewDefault = true; 4478 updateActiveDefaultNetwork(newNetwork); 4479 if (newNetwork.linkProperties != null) { 4480 updateTcpBufferSizes(newNetwork); 4481 setDefaultDnsSystemProperties( 4482 newNetwork.linkProperties.getDnsServers()); 4483 } else { 4484 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 4485 } 4486 // Maintain the illusion: since the legacy API only 4487 // understands one network at a time, we must pretend 4488 // that the current default network disconnected before 4489 // the new one connected. 4490 if (currentNetwork != null) { 4491 mLegacyTypeTracker.remove(currentNetwork.networkInfo.getType(), 4492 currentNetwork); 4493 } 4494 mDefaultInetConditionPublished = 100; 4495 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 4496 } 4497 } 4498 } 4499 } 4500 for (NetworkAgentInfo nai : affectedNetworks) { 4501 boolean teardown = !nai.isVPN(); 4502 for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { 4503 NetworkRequest nr = nai.networkRequests.valueAt(i); 4504 try { 4505 if (mNetworkRequests.get(nr).isRequest) { 4506 teardown = false; 4507 } 4508 } catch (Exception e) { 4509 loge("Request " + nr + " not found in mNetworkRequests."); 4510 loge(" it came from request list of " + nai.name()); 4511 } 4512 } 4513 if (teardown) { 4514 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 4515 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 4516 } else { 4517 // not going to linger, so kill the list of linger networks.. only 4518 // notify them of linger if it happens as the result of gaining another, 4519 // but if they transition and old network stays up, don't tell them of linger 4520 // or very delayed loss 4521 nai.networkLingered.clear(); 4522 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 4523 } 4524 } 4525 if (keep) { 4526 if (isNewDefault) { 4527 makeDefault(newNetwork); 4528 synchronized (ConnectivityService.this) { 4529 // have a new default network, release the transition wakelock in 4530 // a second if it's held. The second pause is to allow apps 4531 // to reconnect over the new network 4532 if (mNetTransitionWakeLock.isHeld()) { 4533 mHandler.sendMessageDelayed(mHandler.obtainMessage( 4534 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 4535 mNetTransitionWakeLockSerialNumber, 0), 4536 1000); 4537 } 4538 } 4539 } 4540 4541 // Notify battery stats service about this network, both the normal 4542 // interface and any stacked links. 4543 try { 4544 final IBatteryStats bs = BatteryStatsService.getService(); 4545 final int type = newNetwork.networkInfo.getType(); 4546 4547 final String baseIface = newNetwork.linkProperties.getInterfaceName(); 4548 bs.noteNetworkInterfaceType(baseIface, type); 4549 for (LinkProperties stacked : newNetwork.linkProperties.getStackedLinks()) { 4550 final String stackedIface = stacked.getInterfaceName(); 4551 bs.noteNetworkInterfaceType(stackedIface, type); 4552 NetworkStatsFactory.noteStackedIface(stackedIface, baseIface); 4553 } 4554 } catch (RemoteException ignored) { 4555 } 4556 4557 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 4558 } else { 4559 if (DBG && newNetwork.networkRequests.size() != 0) { 4560 loge("tearing down network with live requests:"); 4561 for (int i=0; i < newNetwork.networkRequests.size(); i++) { 4562 loge(" " + newNetwork.networkRequests.valueAt(i)); 4563 } 4564 } 4565 if (VDBG) log("Validated network turns out to be unwanted. Tear it down."); 4566 newNetwork.asyncChannel.disconnect(); 4567 } 4568 } 4569 4570 4571 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 4572 NetworkInfo.State state = newInfo.getState(); 4573 NetworkInfo oldInfo = null; 4574 synchronized (networkAgent) { 4575 oldInfo = networkAgent.networkInfo; 4576 networkAgent.networkInfo = newInfo; 4577 } 4578 if (networkAgent.isVPN() && mLockdownTracker != null) { 4579 mLockdownTracker.onVpnStateChanged(newInfo); 4580 } 4581 4582 if (oldInfo != null && oldInfo.getState() == state) { 4583 if (VDBG) log("ignoring duplicate network state non-change"); 4584 return; 4585 } 4586 if (DBG) { 4587 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 4588 (oldInfo == null ? "null" : oldInfo.getState()) + 4589 " to " + state); 4590 } 4591 4592 if (state == NetworkInfo.State.CONNECTED && !networkAgent.created) { 4593 try { 4594 // This should never fail. Specifying an already in use NetID will cause failure. 4595 if (networkAgent.isVPN()) { 4596 mNetd.createVirtualNetwork(networkAgent.network.netId, 4597 !networkAgent.linkProperties.getDnsServers().isEmpty(), 4598 (networkAgent.networkMisc == null || 4599 !networkAgent.networkMisc.allowBypass)); 4600 } else { 4601 mNetd.createPhysicalNetwork(networkAgent.network.netId); 4602 } 4603 } catch (Exception e) { 4604 loge("Error creating network " + networkAgent.network.netId + ": " 4605 + e.getMessage()); 4606 return; 4607 } 4608 networkAgent.created = true; 4609 updateLinkProperties(networkAgent, null); 4610 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 4611 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 4612 if (networkAgent.isVPN()) { 4613 // Temporarily disable the default proxy (not global). 4614 synchronized (mProxyLock) { 4615 if (!mDefaultProxyDisabled) { 4616 mDefaultProxyDisabled = true; 4617 if (mGlobalProxy == null && mDefaultProxy != null) { 4618 sendProxyBroadcast(null); 4619 } 4620 } 4621 } 4622 // TODO: support proxy per network. 4623 } 4624 // Make default network if we have no default. Any network is better than no network. 4625 if (mNetworkForRequestId.get(mDefaultRequest.requestId) == null && 4626 networkAgent.isVPN() == false && 4627 mDefaultRequest.networkCapabilities.satisfiedByNetworkCapabilities( 4628 networkAgent.networkCapabilities)) { 4629 makeDefault(networkAgent); 4630 } 4631 } else if (state == NetworkInfo.State.DISCONNECTED || 4632 state == NetworkInfo.State.SUSPENDED) { 4633 networkAgent.asyncChannel.disconnect(); 4634 if (networkAgent.isVPN()) { 4635 synchronized (mProxyLock) { 4636 if (mDefaultProxyDisabled) { 4637 mDefaultProxyDisabled = false; 4638 if (mGlobalProxy == null && mDefaultProxy != null) { 4639 sendProxyBroadcast(mDefaultProxy); 4640 } 4641 } 4642 } 4643 } 4644 } 4645 } 4646 4647 private void updateNetworkScore(NetworkAgentInfo nai, int score) { 4648 if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); 4649 4650 nai.currentScore = score; 4651 4652 // TODO - This will not do the right thing if this network is lowering 4653 // its score and has requests that can be served by other 4654 // currently-active networks, or if the network is increasing its 4655 // score and other networks have requests that can be better served 4656 // by this network. 4657 // 4658 // Really we want to see if any of our requests migrate to other 4659 // active/lingered networks and if any other requests migrate to us (depending 4660 // on increasing/decreasing currentScore. That's a bit of work and probably our 4661 // score checking/network allocation code needs to be modularized so we can understand 4662 // (see handleConnectionValided for an example). 4663 // 4664 // As a first order approx, lets just advertise the new score to factories. If 4665 // somebody can beat it they will nominate a network and our normal net replacement 4666 // code will fire. 4667 for (int i = 0; i < nai.networkRequests.size(); i++) { 4668 NetworkRequest nr = nai.networkRequests.valueAt(i); 4669 sendUpdatedScoreToFactories(nr, score); 4670 } 4671 } 4672 4673 // notify only this one new request of the current state 4674 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 4675 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 4676 // TODO - read state from monitor to decide what to send. 4677// if (nai.networkMonitor.isLingering()) { 4678// notifyType = NetworkCallbacks.LOSING; 4679// } else if (nai.networkMonitor.isEvaluating()) { 4680// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 4681// } 4682 callCallbackForRequest(nri, nai, notifyType); 4683 } 4684 4685 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 4686 // The NetworkInfo we actually send out has no bearing on the real 4687 // state of affairs. For example, if the default connection is mobile, 4688 // and a request for HIPRI has just gone away, we need to pretend that 4689 // HIPRI has just disconnected. So we need to set the type to HIPRI and 4690 // the state to DISCONNECTED, even though the network is of type MOBILE 4691 // and is still connected. 4692 NetworkInfo info = new NetworkInfo(nai.networkInfo); 4693 info.setType(type); 4694 if (connected) { 4695 info.setDetailedState(DetailedState.CONNECTED, null, info.getExtraInfo()); 4696 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 4697 } else { 4698 info.setDetailedState(DetailedState.DISCONNECTED, null, info.getExtraInfo()); 4699 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 4700 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 4701 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 4702 if (info.isFailover()) { 4703 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 4704 nai.networkInfo.setFailover(false); 4705 } 4706 if (info.getReason() != null) { 4707 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 4708 } 4709 if (info.getExtraInfo() != null) { 4710 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 4711 } 4712 NetworkAgentInfo newDefaultAgent = null; 4713 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 4714 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 4715 if (newDefaultAgent != null) { 4716 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 4717 newDefaultAgent.networkInfo); 4718 } else { 4719 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 4720 } 4721 } 4722 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 4723 mDefaultInetConditionPublished); 4724 final Intent immediateIntent = new Intent(intent); 4725 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 4726 sendStickyBroadcast(immediateIntent); 4727 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 4728 if (newDefaultAgent != null) { 4729 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 4730 getConnectivityChangeDelay()); 4731 } 4732 } 4733 } 4734 4735 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 4736 if (VDBG) log("notifyType " + notifyType + " for " + networkAgent.name()); 4737 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 4738 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 4739 NetworkRequestInfo nri = mNetworkRequests.get(nr); 4740 if (VDBG) log(" sending notification for " + nr); 4741 callCallbackForRequest(nri, networkAgent, notifyType); 4742 } 4743 } 4744 4745 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 4746 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4747 if (nai != null) { 4748 synchronized (nai) { 4749 return new LinkProperties(nai.linkProperties); 4750 } 4751 } 4752 return new LinkProperties(); 4753 } 4754 4755 private NetworkInfo getNetworkInfoForType(int networkType) { 4756 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 4757 return null; 4758 4759 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4760 if (nai != null) { 4761 NetworkInfo result = new NetworkInfo(nai.networkInfo); 4762 result.setType(networkType); 4763 return result; 4764 } else { 4765 NetworkInfo result = new NetworkInfo(networkType); 4766 result.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, null, null); 4767 return result; 4768 } 4769 } 4770 4771 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 4772 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4773 if (nai != null) { 4774 synchronized (nai) { 4775 return new NetworkCapabilities(nai.networkCapabilities); 4776 } 4777 } 4778 return new NetworkCapabilities(); 4779 } 4780 4781 @Override 4782 public boolean addVpnAddress(String address, int prefixLength) { 4783 throwIfLockdownEnabled(); 4784 int user = UserHandle.getUserId(Binder.getCallingUid()); 4785 synchronized (mVpns) { 4786 return mVpns.get(user).addAddress(address, prefixLength); 4787 } 4788 } 4789 4790 @Override 4791 public boolean removeVpnAddress(String address, int prefixLength) { 4792 throwIfLockdownEnabled(); 4793 int user = UserHandle.getUserId(Binder.getCallingUid()); 4794 synchronized (mVpns) { 4795 return mVpns.get(user).removeAddress(address, prefixLength); 4796 } 4797 } 4798} 4799