ConnectivityService.java revision f9ee0e50545ba5e592147037f67155a29b3130ca
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 = false; 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 = TYPE_NONE; 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; keep in sync with system/netd/NetworkController.cpp 429 private final static int MIN_NET_ID = 100; // 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 given networkType. 797 * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. 798 */ 799 private boolean isNetworkBlocked(int networkType, int uid) { 800 return isNetworkWithLinkPropertiesBlocked(getLinkPropertiesForType(networkType), uid); 801 } 802 803 /** 804 * Check if UID should be blocked from using the network represented by the given 805 * NetworkAgentInfo. 806 */ 807 private boolean isNetworkBlocked(NetworkAgentInfo nai, int uid) { 808 return isNetworkWithLinkPropertiesBlocked(nai.linkProperties, uid); 809 } 810 811 /** 812 * Check if UID should be blocked from using the network with the given LinkProperties. 813 */ 814 private boolean isNetworkWithLinkPropertiesBlocked(LinkProperties lp, int uid) { 815 final boolean networkCostly; 816 final int uidRules; 817 818 final String iface = (lp == null ? "" : lp.getInterfaceName()); 819 synchronized (mRulesLock) { 820 networkCostly = mMeteredIfaces.contains(iface); 821 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 822 } 823 824 if (networkCostly && (uidRules & RULE_REJECT_METERED) != 0) { 825 return true; 826 } 827 828 // no restrictive rules; network is visible 829 return false; 830 } 831 832 /** 833 * Return a filtered {@link NetworkInfo}, potentially marked 834 * {@link DetailedState#BLOCKED} based on 835 * {@link #isNetworkBlocked}. 836 * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. 837 */ 838 private NetworkInfo getFilteredNetworkInfo(int networkType, int uid) { 839 NetworkInfo info = getNetworkInfoForType(networkType); 840 return getFilteredNetworkInfo(info, networkType, uid); 841 } 842 843 /* 844 * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. 845 */ 846 private NetworkInfo getFilteredNetworkInfo(NetworkInfo info, int networkType, int uid) { 847 if (isNetworkBlocked(networkType, uid)) { 848 // network is blocked; clone and override state 849 info = new NetworkInfo(info); 850 info.setDetailedState(DetailedState.BLOCKED, null, null); 851 if (VDBG) log("returning Blocked NetworkInfo"); 852 } 853 if (mLockdownTracker != null) { 854 info = mLockdownTracker.augmentNetworkInfo(info); 855 if (VDBG) log("returning Locked NetworkInfo"); 856 } 857 return info; 858 } 859 860 private NetworkInfo getFilteredNetworkInfo(NetworkAgentInfo nai, int uid) { 861 NetworkInfo info = nai.networkInfo; 862 if (isNetworkBlocked(nai, uid)) { 863 // network is blocked; clone and override state 864 info = new NetworkInfo(info); 865 info.setDetailedState(DetailedState.BLOCKED, null, null); 866 if (DBG) log("returning Blocked NetworkInfo"); 867 } 868 if (mLockdownTracker != null) { 869 info = mLockdownTracker.augmentNetworkInfo(info); 870 if (DBG) log("returning Locked NetworkInfo"); 871 } 872 return info; 873 } 874 875 /** 876 * Return NetworkInfo for the active (i.e., connected) network interface. 877 * It is assumed that at most one network is active at a time. If more 878 * than one is active, it is indeterminate which will be returned. 879 * @return the info for the active network, or {@code null} if none is 880 * active 881 */ 882 @Override 883 public NetworkInfo getActiveNetworkInfo() { 884 enforceAccessPermission(); 885 final int uid = Binder.getCallingUid(); 886 return getNetworkInfo(mActiveDefaultNetwork, uid); 887 } 888 889 /** 890 * Find the first Provisioning network. 891 * 892 * @return NetworkInfo or null if none. 893 */ 894 private NetworkInfo getProvisioningNetworkInfo() { 895 enforceAccessPermission(); 896 897 // Find the first Provisioning Network 898 NetworkInfo provNi = null; 899 for (NetworkInfo ni : getAllNetworkInfo()) { 900 if (ni.isConnectedToProvisioningNetwork()) { 901 provNi = ni; 902 break; 903 } 904 } 905 if (DBG) log("getProvisioningNetworkInfo: X provNi=" + provNi); 906 return provNi; 907 } 908 909 /** 910 * Find the first Provisioning network or the ActiveDefaultNetwork 911 * if there is no Provisioning network 912 * 913 * @return NetworkInfo or null if none. 914 */ 915 @Override 916 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 917 enforceAccessPermission(); 918 919 NetworkInfo provNi = getProvisioningNetworkInfo(); 920 if (provNi == null) { 921 final int uid = Binder.getCallingUid(); 922 provNi = getNetworkInfo(mActiveDefaultNetwork, uid); 923 } 924 if (DBG) log("getProvisioningOrActiveNetworkInfo: X provNi=" + provNi); 925 return provNi; 926 } 927 928 public NetworkInfo getActiveNetworkInfoUnfiltered() { 929 enforceAccessPermission(); 930 if (isNetworkTypeValid(mActiveDefaultNetwork)) { 931 return getNetworkInfoForType(mActiveDefaultNetwork); 932 } 933 return null; 934 } 935 936 @Override 937 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 938 enforceConnectivityInternalPermission(); 939 return getNetworkInfo(mActiveDefaultNetwork, uid); 940 } 941 942 @Override 943 public NetworkInfo getNetworkInfo(int networkType) { 944 enforceAccessPermission(); 945 final int uid = Binder.getCallingUid(); 946 return getNetworkInfo(networkType, uid); 947 } 948 949 private NetworkInfo getNetworkInfo(int networkType, int uid) { 950 NetworkInfo info = null; 951 if (isNetworkTypeValid(networkType)) { 952 if (getNetworkInfoForType(networkType) != null) { 953 info = getFilteredNetworkInfo(networkType, uid); 954 } 955 } 956 return info; 957 } 958 959 @Override 960 public NetworkInfo getNetworkInfoForNetwork(Network network) { 961 enforceAccessPermission(); 962 if (network == null) return null; 963 964 final int uid = Binder.getCallingUid(); 965 NetworkAgentInfo nai = null; 966 synchronized (mNetworkForNetId) { 967 nai = mNetworkForNetId.get(network.netId); 968 } 969 if (nai == null) return null; 970 synchronized (nai) { 971 if (nai.networkInfo == null) return null; 972 973 return getFilteredNetworkInfo(nai, uid); 974 } 975 } 976 977 @Override 978 public NetworkInfo[] getAllNetworkInfo() { 979 enforceAccessPermission(); 980 final int uid = Binder.getCallingUid(); 981 final ArrayList<NetworkInfo> result = Lists.newArrayList(); 982 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 983 networkType++) { 984 if (getNetworkInfoForType(networkType) != null) { 985 result.add(getFilteredNetworkInfo(networkType, uid)); 986 } 987 } 988 return result.toArray(new NetworkInfo[result.size()]); 989 } 990 991 @Override 992 public Network getNetworkForType(int networkType) { 993 enforceAccessPermission(); 994 final int uid = Binder.getCallingUid(); 995 if (isNetworkBlocked(networkType, uid)) { 996 return null; 997 } 998 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 999 return (nai == null) ? null : nai.network; 1000 } 1001 1002 @Override 1003 public Network[] getAllNetworks() { 1004 enforceAccessPermission(); 1005 final ArrayList<Network> result = new ArrayList(); 1006 synchronized (mNetworkForNetId) { 1007 for (int i = 0; i < mNetworkForNetId.size(); i++) { 1008 result.add(new Network(mNetworkForNetId.valueAt(i).network)); 1009 } 1010 } 1011 return result.toArray(new Network[result.size()]); 1012 } 1013 1014 @Override 1015 public boolean isNetworkSupported(int networkType) { 1016 enforceAccessPermission(); 1017 return (isNetworkTypeValid(networkType) && (getNetworkInfoForType(networkType) != null)); 1018 } 1019 1020 /** 1021 * Return LinkProperties for the active (i.e., connected) default 1022 * network interface. It is assumed that at most one default network 1023 * is active at a time. If more than one is active, it is indeterminate 1024 * which will be returned. 1025 * @return the ip properties for the active network, or {@code null} if 1026 * none is active 1027 */ 1028 @Override 1029 public LinkProperties getActiveLinkProperties() { 1030 return getLinkPropertiesForType(mActiveDefaultNetwork); 1031 } 1032 1033 @Override 1034 public LinkProperties getLinkPropertiesForType(int networkType) { 1035 enforceAccessPermission(); 1036 if (isNetworkTypeValid(networkType)) { 1037 return getLinkPropertiesForTypeInternal(networkType); 1038 } 1039 return null; 1040 } 1041 1042 // TODO - this should be ALL networks 1043 @Override 1044 public LinkProperties getLinkProperties(Network network) { 1045 enforceAccessPermission(); 1046 NetworkAgentInfo nai = null; 1047 synchronized (mNetworkForNetId) { 1048 nai = mNetworkForNetId.get(network.netId); 1049 } 1050 1051 if (nai != null) { 1052 synchronized (nai) { 1053 return new LinkProperties(nai.linkProperties); 1054 } 1055 } 1056 return null; 1057 } 1058 1059 @Override 1060 public NetworkCapabilities getNetworkCapabilities(Network network) { 1061 enforceAccessPermission(); 1062 NetworkAgentInfo nai = null; 1063 synchronized (mNetworkForNetId) { 1064 nai = mNetworkForNetId.get(network.netId); 1065 } 1066 if (nai != null) { 1067 synchronized (nai) { 1068 return new NetworkCapabilities(nai.networkCapabilities); 1069 } 1070 } 1071 return null; 1072 } 1073 1074 @Override 1075 public NetworkState[] getAllNetworkState() { 1076 enforceAccessPermission(); 1077 final int uid = Binder.getCallingUid(); 1078 final ArrayList<NetworkState> result = Lists.newArrayList(); 1079 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1080 networkType++) { 1081 if (getNetworkInfoForType(networkType) != null) { 1082 final NetworkInfo info = getFilteredNetworkInfo(networkType, uid); 1083 final LinkProperties lp = getLinkPropertiesForTypeInternal(networkType); 1084 final NetworkCapabilities netcap = getNetworkCapabilitiesForType(networkType); 1085 result.add(new NetworkState(info, lp, netcap)); 1086 } 1087 } 1088 return result.toArray(new NetworkState[result.size()]); 1089 } 1090 1091 private NetworkState getNetworkStateUnchecked(int networkType) { 1092 if (isNetworkTypeValid(networkType)) { 1093 NetworkInfo info = getNetworkInfoForType(networkType); 1094 if (info != null) { 1095 return new NetworkState(info, 1096 getLinkPropertiesForTypeInternal(networkType), 1097 getNetworkCapabilitiesForType(networkType)); 1098 } 1099 } 1100 return null; 1101 } 1102 1103 @Override 1104 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1105 enforceAccessPermission(); 1106 1107 final long token = Binder.clearCallingIdentity(); 1108 try { 1109 final NetworkState state = getNetworkStateUnchecked(mActiveDefaultNetwork); 1110 if (state != null) { 1111 try { 1112 return mPolicyManager.getNetworkQuotaInfo(state); 1113 } catch (RemoteException e) { 1114 } 1115 } 1116 return null; 1117 } finally { 1118 Binder.restoreCallingIdentity(token); 1119 } 1120 } 1121 1122 @Override 1123 public boolean isActiveNetworkMetered() { 1124 enforceAccessPermission(); 1125 final long token = Binder.clearCallingIdentity(); 1126 try { 1127 return isNetworkMeteredUnchecked(mActiveDefaultNetwork); 1128 } finally { 1129 Binder.restoreCallingIdentity(token); 1130 } 1131 } 1132 1133 private boolean isNetworkMeteredUnchecked(int networkType) { 1134 final NetworkState state = getNetworkStateUnchecked(networkType); 1135 if (state != null) { 1136 try { 1137 return mPolicyManager.isNetworkMetered(state); 1138 } catch (RemoteException e) { 1139 } 1140 } 1141 return false; 1142 } 1143 1144 private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { 1145 @Override 1146 public void interfaceClassDataActivityChanged(String label, boolean active, long tsNanos) { 1147 int deviceType = Integer.parseInt(label); 1148 sendDataActivityBroadcast(deviceType, active, tsNanos); 1149 } 1150 }; 1151 1152 /** 1153 * Ensure that a network route exists to deliver traffic to the specified 1154 * host via the specified network interface. 1155 * @param networkType the type of the network over which traffic to the 1156 * specified host is to be routed 1157 * @param hostAddress the IP address of the host to which the route is 1158 * desired 1159 * @return {@code true} on success, {@code false} on failure 1160 */ 1161 public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress) { 1162 enforceChangePermission(); 1163 if (mProtectedNetworks.contains(networkType)) { 1164 enforceConnectivityInternalPermission(); 1165 } 1166 1167 InetAddress addr; 1168 try { 1169 addr = InetAddress.getByAddress(hostAddress); 1170 } catch (UnknownHostException e) { 1171 if (DBG) log("requestRouteToHostAddress got " + e.toString()); 1172 return false; 1173 } 1174 1175 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1176 if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); 1177 return false; 1178 } 1179 1180 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1181 if (nai == null) { 1182 if (mLegacyTypeTracker.isTypeSupported(networkType) == false) { 1183 if (DBG) log("requestRouteToHostAddress on unsupported network: " + networkType); 1184 } else { 1185 if (DBG) log("requestRouteToHostAddress on down network: " + networkType); 1186 } 1187 return false; 1188 } 1189 1190 DetailedState netState; 1191 synchronized (nai) { 1192 netState = nai.networkInfo.getDetailedState(); 1193 } 1194 1195 if (netState != DetailedState.CONNECTED && netState != DetailedState.CAPTIVE_PORTAL_CHECK) { 1196 if (VDBG) { 1197 log("requestRouteToHostAddress on down network " 1198 + "(" + networkType + ") - dropped" 1199 + " netState=" + netState); 1200 } 1201 return false; 1202 } 1203 1204 final int uid = Binder.getCallingUid(); 1205 final long token = Binder.clearCallingIdentity(); 1206 try { 1207 LinkProperties lp; 1208 int netId; 1209 synchronized (nai) { 1210 lp = nai.linkProperties; 1211 netId = nai.network.netId; 1212 } 1213 boolean ok = addLegacyRouteToHost(lp, addr, netId, uid); 1214 if (DBG) log("requestRouteToHostAddress ok=" + ok); 1215 return ok; 1216 } finally { 1217 Binder.restoreCallingIdentity(token); 1218 } 1219 } 1220 1221 private boolean addLegacyRouteToHost(LinkProperties lp, InetAddress addr, int netId, int uid) { 1222 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), addr); 1223 if (bestRoute == null) { 1224 bestRoute = RouteInfo.makeHostRoute(addr, lp.getInterfaceName()); 1225 } else { 1226 String iface = bestRoute.getInterface(); 1227 if (bestRoute.getGateway().equals(addr)) { 1228 // if there is no better route, add the implied hostroute for our gateway 1229 bestRoute = RouteInfo.makeHostRoute(addr, iface); 1230 } else { 1231 // if we will connect to this through another route, add a direct route 1232 // to it's gateway 1233 bestRoute = RouteInfo.makeHostRoute(addr, bestRoute.getGateway(), iface); 1234 } 1235 } 1236 if (DBG) log("Adding " + bestRoute + " for interface " + bestRoute.getInterface()); 1237 try { 1238 mNetd.addLegacyRouteForNetId(netId, bestRoute, uid); 1239 } catch (Exception e) { 1240 // never crash - catch them all 1241 if (DBG) loge("Exception trying to add a route: " + e); 1242 return false; 1243 } 1244 return true; 1245 } 1246 1247 public void setDataDependency(int networkType, boolean met) { 1248 enforceConnectivityInternalPermission(); 1249 1250 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_DEPENDENCY_MET, 1251 (met ? ENABLED : DISABLED), networkType)); 1252 } 1253 1254 private void handleSetDependencyMet(int networkType, boolean met) { 1255 if (mNetTrackers[networkType] != null) { 1256 if (DBG) { 1257 log("handleSetDependencyMet(" + networkType + ", " + met + ")"); 1258 } 1259 mNetTrackers[networkType].setDependencyMet(met); 1260 } 1261 } 1262 1263 private INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() { 1264 @Override 1265 public void onUidRulesChanged(int uid, int uidRules) { 1266 // caller is NPMS, since we only register with them 1267 if (LOGD_RULES) { 1268 log("onUidRulesChanged(uid=" + uid + ", uidRules=" + uidRules + ")"); 1269 } 1270 1271 synchronized (mRulesLock) { 1272 // skip update when we've already applied rules 1273 final int oldRules = mUidRules.get(uid, RULE_ALLOW_ALL); 1274 if (oldRules == uidRules) return; 1275 1276 mUidRules.put(uid, uidRules); 1277 } 1278 1279 // TODO: notify UID when it has requested targeted updates 1280 } 1281 1282 @Override 1283 public void onMeteredIfacesChanged(String[] meteredIfaces) { 1284 // caller is NPMS, since we only register with them 1285 if (LOGD_RULES) { 1286 log("onMeteredIfacesChanged(ifaces=" + Arrays.toString(meteredIfaces) + ")"); 1287 } 1288 1289 synchronized (mRulesLock) { 1290 mMeteredIfaces.clear(); 1291 for (String iface : meteredIfaces) { 1292 mMeteredIfaces.add(iface); 1293 } 1294 } 1295 } 1296 1297 @Override 1298 public void onRestrictBackgroundChanged(boolean restrictBackground) { 1299 // caller is NPMS, since we only register with them 1300 if (LOGD_RULES) { 1301 log("onRestrictBackgroundChanged(restrictBackground=" + restrictBackground + ")"); 1302 } 1303 1304 // kick off connectivity change broadcast for active network, since 1305 // global background policy change is radical. 1306 final int networkType = mActiveDefaultNetwork; 1307 if (isNetworkTypeValid(networkType)) { 1308 final NetworkStateTracker tracker = mNetTrackers[networkType]; 1309 if (tracker != null) { 1310 final NetworkInfo info = tracker.getNetworkInfo(); 1311 if (info != null && info.isConnected()) { 1312 sendConnectedBroadcast(info); 1313 } 1314 } 1315 } 1316 } 1317 }; 1318 1319 @Override 1320 public void setPolicyDataEnable(int networkType, boolean enabled) { 1321 // only someone like NPMS should only be calling us 1322 mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); 1323 1324 mHandler.sendMessage(mHandler.obtainMessage( 1325 EVENT_SET_POLICY_DATA_ENABLE, networkType, (enabled ? ENABLED : DISABLED))); 1326 } 1327 1328 private void handleSetPolicyDataEnable(int networkType, boolean enabled) { 1329 // TODO - handle this passing to factories 1330// if (isNetworkTypeValid(networkType)) { 1331// final NetworkStateTracker tracker = mNetTrackers[networkType]; 1332// if (tracker != null) { 1333// tracker.setPolicyDataEnable(enabled); 1334// } 1335// } 1336 } 1337 1338 private void enforceInternetPermission() { 1339 mContext.enforceCallingOrSelfPermission( 1340 android.Manifest.permission.INTERNET, 1341 "ConnectivityService"); 1342 } 1343 1344 private void enforceAccessPermission() { 1345 mContext.enforceCallingOrSelfPermission( 1346 android.Manifest.permission.ACCESS_NETWORK_STATE, 1347 "ConnectivityService"); 1348 } 1349 1350 private void enforceChangePermission() { 1351 mContext.enforceCallingOrSelfPermission( 1352 android.Manifest.permission.CHANGE_NETWORK_STATE, 1353 "ConnectivityService"); 1354 } 1355 1356 // TODO Make this a special check when it goes public 1357 private void enforceTetherChangePermission() { 1358 mContext.enforceCallingOrSelfPermission( 1359 android.Manifest.permission.CHANGE_NETWORK_STATE, 1360 "ConnectivityService"); 1361 } 1362 1363 private void enforceTetherAccessPermission() { 1364 mContext.enforceCallingOrSelfPermission( 1365 android.Manifest.permission.ACCESS_NETWORK_STATE, 1366 "ConnectivityService"); 1367 } 1368 1369 private void enforceConnectivityInternalPermission() { 1370 mContext.enforceCallingOrSelfPermission( 1371 android.Manifest.permission.CONNECTIVITY_INTERNAL, 1372 "ConnectivityService"); 1373 } 1374 1375 public void sendConnectedBroadcast(NetworkInfo info) { 1376 enforceConnectivityInternalPermission(); 1377 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1378 sendGeneralBroadcast(info, CONNECTIVITY_ACTION); 1379 } 1380 1381 private void sendConnectedBroadcastDelayed(NetworkInfo info, int delayMs) { 1382 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1383 sendGeneralBroadcastDelayed(info, CONNECTIVITY_ACTION, delayMs); 1384 } 1385 1386 private void sendInetConditionBroadcast(NetworkInfo info) { 1387 sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION); 1388 } 1389 1390 private Intent makeGeneralIntent(NetworkInfo info, String bcastType) { 1391 if (mLockdownTracker != null) { 1392 info = mLockdownTracker.augmentNetworkInfo(info); 1393 } 1394 1395 Intent intent = new Intent(bcastType); 1396 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 1397 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 1398 if (info.isFailover()) { 1399 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 1400 info.setFailover(false); 1401 } 1402 if (info.getReason() != null) { 1403 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 1404 } 1405 if (info.getExtraInfo() != null) { 1406 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 1407 info.getExtraInfo()); 1408 } 1409 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 1410 return intent; 1411 } 1412 1413 private void sendGeneralBroadcast(NetworkInfo info, String bcastType) { 1414 sendStickyBroadcast(makeGeneralIntent(info, bcastType)); 1415 } 1416 1417 private void sendGeneralBroadcastDelayed(NetworkInfo info, String bcastType, int delayMs) { 1418 sendStickyBroadcastDelayed(makeGeneralIntent(info, bcastType), delayMs); 1419 } 1420 1421 private void sendDataActivityBroadcast(int deviceType, boolean active, long tsNanos) { 1422 Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); 1423 intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); 1424 intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); 1425 intent.putExtra(ConnectivityManager.EXTRA_REALTIME_NS, tsNanos); 1426 final long ident = Binder.clearCallingIdentity(); 1427 try { 1428 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, 1429 RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); 1430 } finally { 1431 Binder.restoreCallingIdentity(ident); 1432 } 1433 } 1434 1435 private void sendStickyBroadcast(Intent intent) { 1436 synchronized(this) { 1437 if (!mSystemReady) { 1438 mInitialBroadcast = new Intent(intent); 1439 } 1440 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1441 if (DBG) { 1442 log("sendStickyBroadcast: action=" + intent.getAction()); 1443 } 1444 1445 final long ident = Binder.clearCallingIdentity(); 1446 try { 1447 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1448 } finally { 1449 Binder.restoreCallingIdentity(ident); 1450 } 1451 } 1452 } 1453 1454 private void sendStickyBroadcastDelayed(Intent intent, int delayMs) { 1455 if (delayMs <= 0) { 1456 sendStickyBroadcast(intent); 1457 } else { 1458 if (VDBG) { 1459 log("sendStickyBroadcastDelayed: delayMs=" + delayMs + ", action=" 1460 + intent.getAction()); 1461 } 1462 mHandler.sendMessageDelayed(mHandler.obtainMessage( 1463 EVENT_SEND_STICKY_BROADCAST_INTENT, intent), delayMs); 1464 } 1465 } 1466 1467 void systemReady() { 1468 // start network sampling .. 1469 Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 1470 intent.setPackage(mContext.getPackageName()); 1471 1472 mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, 1473 SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); 1474 setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); 1475 1476 loadGlobalProxy(); 1477 1478 synchronized(this) { 1479 mSystemReady = true; 1480 if (mInitialBroadcast != null) { 1481 mContext.sendStickyBroadcastAsUser(mInitialBroadcast, UserHandle.ALL); 1482 mInitialBroadcast = null; 1483 } 1484 } 1485 // load the global proxy at startup 1486 mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY)); 1487 1488 // Try bringing up tracker, but if KeyStore isn't ready yet, wait 1489 // for user to unlock device. 1490 if (!updateLockdownVpn()) { 1491 final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_PRESENT); 1492 mContext.registerReceiver(mUserPresentReceiver, filter); 1493 } 1494 1495 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SYSTEM_READY)); 1496 } 1497 1498 private BroadcastReceiver mUserPresentReceiver = new BroadcastReceiver() { 1499 @Override 1500 public void onReceive(Context context, Intent intent) { 1501 // Try creating lockdown tracker, since user present usually means 1502 // unlocked keystore. 1503 if (updateLockdownVpn()) { 1504 mContext.unregisterReceiver(this); 1505 } 1506 } 1507 }; 1508 1509 /** @hide */ 1510 @Override 1511 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 1512 enforceConnectivityInternalPermission(); 1513 if (DBG) log("captivePortalCheckCompleted: ni=" + info + " captive=" + isCaptivePortal); 1514// mNetTrackers[info.getType()].captivePortalCheckCompleted(isCaptivePortal); 1515 } 1516 1517 /** 1518 * Setup data activity tracking for the given network. 1519 * 1520 * Every {@code setupDataActivityTracking} should be paired with a 1521 * {@link #removeDataActivityTracking} for cleanup. 1522 */ 1523 private void setupDataActivityTracking(NetworkAgentInfo networkAgent) { 1524 final String iface = networkAgent.linkProperties.getInterfaceName(); 1525 1526 final int timeout; 1527 int type = ConnectivityManager.TYPE_NONE; 1528 1529 if (networkAgent.networkCapabilities.hasTransport( 1530 NetworkCapabilities.TRANSPORT_CELLULAR)) { 1531 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1532 Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, 1533 5); 1534 type = ConnectivityManager.TYPE_MOBILE; 1535 } else if (networkAgent.networkCapabilities.hasTransport( 1536 NetworkCapabilities.TRANSPORT_WIFI)) { 1537 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1538 Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, 1539 0); 1540 type = ConnectivityManager.TYPE_WIFI; 1541 } else { 1542 // do not track any other networks 1543 timeout = 0; 1544 } 1545 1546 if (timeout > 0 && iface != null && type != ConnectivityManager.TYPE_NONE) { 1547 try { 1548 mNetd.addIdleTimer(iface, timeout, type); 1549 } catch (Exception e) { 1550 // You shall not crash! 1551 loge("Exception in setupDataActivityTracking " + e); 1552 } 1553 } 1554 } 1555 1556 /** 1557 * Remove data activity tracking when network disconnects. 1558 */ 1559 private void removeDataActivityTracking(NetworkAgentInfo networkAgent) { 1560 final String iface = networkAgent.linkProperties.getInterfaceName(); 1561 final NetworkCapabilities caps = networkAgent.networkCapabilities; 1562 1563 if (iface != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) || 1564 caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))) { 1565 try { 1566 // the call fails silently if no idletimer setup for this interface 1567 mNetd.removeIdleTimer(iface); 1568 } catch (Exception e) { 1569 loge("Exception in removeDataActivityTracking " + e); 1570 } 1571 } 1572 } 1573 1574 /** 1575 * Reads the network specific MTU size from reources. 1576 * and set it on it's iface. 1577 */ 1578 private void updateMtu(LinkProperties newLp, LinkProperties oldLp) { 1579 final String iface = newLp.getInterfaceName(); 1580 final int mtu = newLp.getMtu(); 1581 if (oldLp != null && newLp.isIdenticalMtu(oldLp)) { 1582 if (VDBG) log("identical MTU - not setting"); 1583 return; 1584 } 1585 1586 if (LinkProperties.isValidMtu(mtu, newLp.hasGlobalIPv6Address()) == false) { 1587 loge("Unexpected mtu value: " + mtu + ", " + iface); 1588 return; 1589 } 1590 1591 // Cannot set MTU without interface name 1592 if (TextUtils.isEmpty(iface)) { 1593 loge("Setting MTU size with null iface."); 1594 return; 1595 } 1596 1597 try { 1598 if (DBG) log("Setting MTU size: " + iface + ", " + mtu); 1599 mNetd.setMtu(iface, mtu); 1600 } catch (Exception e) { 1601 Slog.e(TAG, "exception in setMtu()" + e); 1602 } 1603 } 1604 1605 private static final String DEFAULT_TCP_BUFFER_SIZES = "4096,87380,110208,4096,16384,110208"; 1606 1607 private void updateTcpBufferSizes(NetworkAgentInfo nai) { 1608 if (isDefaultNetwork(nai) == false) { 1609 return; 1610 } 1611 1612 String tcpBufferSizes = nai.linkProperties.getTcpBufferSizes(); 1613 String[] values = null; 1614 if (tcpBufferSizes != null) { 1615 values = tcpBufferSizes.split(","); 1616 } 1617 1618 if (values == null || values.length != 6) { 1619 if (DBG) log("Invalid tcpBufferSizes string: " + tcpBufferSizes +", using defaults"); 1620 tcpBufferSizes = DEFAULT_TCP_BUFFER_SIZES; 1621 values = tcpBufferSizes.split(","); 1622 } 1623 1624 if (tcpBufferSizes.equals(mCurrentTcpBufferSizes)) return; 1625 1626 try { 1627 if (DBG) Slog.d(TAG, "Setting tx/rx TCP buffers to " + tcpBufferSizes); 1628 1629 final String prefix = "/sys/kernel/ipv4/tcp_"; 1630 FileUtils.stringToFile(prefix + "rmem_min", values[0]); 1631 FileUtils.stringToFile(prefix + "rmem_def", values[1]); 1632 FileUtils.stringToFile(prefix + "rmem_max", values[2]); 1633 FileUtils.stringToFile(prefix + "wmem_min", values[3]); 1634 FileUtils.stringToFile(prefix + "wmem_def", values[4]); 1635 FileUtils.stringToFile(prefix + "wmem_max", values[5]); 1636 mCurrentTcpBufferSizes = tcpBufferSizes; 1637 } catch (IOException e) { 1638 loge("Can't set TCP buffer sizes:" + e); 1639 } 1640 1641 final String defaultRwndKey = "net.tcp.default_init_rwnd"; 1642 int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0); 1643 Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(), 1644 Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue); 1645 final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd"; 1646 if (rwndValue != 0) { 1647 SystemProperties.set(sysctlKey, rwndValue.toString()); 1648 } 1649 } 1650 1651 private void flushVmDnsCache() { 1652 /* 1653 * Tell the VMs to toss their DNS caches 1654 */ 1655 Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE); 1656 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); 1657 /* 1658 * Connectivity events can happen before boot has completed ... 1659 */ 1660 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1661 final long ident = Binder.clearCallingIdentity(); 1662 try { 1663 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 1664 } finally { 1665 Binder.restoreCallingIdentity(ident); 1666 } 1667 } 1668 1669 @Override 1670 public int getRestoreDefaultNetworkDelay(int networkType) { 1671 String restoreDefaultNetworkDelayStr = SystemProperties.get( 1672 NETWORK_RESTORE_DELAY_PROP_NAME); 1673 if(restoreDefaultNetworkDelayStr != null && 1674 restoreDefaultNetworkDelayStr.length() != 0) { 1675 try { 1676 return Integer.valueOf(restoreDefaultNetworkDelayStr); 1677 } catch (NumberFormatException e) { 1678 } 1679 } 1680 // if the system property isn't set, use the value for the apn type 1681 int ret = RESTORE_DEFAULT_NETWORK_DELAY; 1682 1683 if ((networkType <= ConnectivityManager.MAX_NETWORK_TYPE) && 1684 (mNetConfigs[networkType] != null)) { 1685 ret = mNetConfigs[networkType].restoreTime; 1686 } 1687 return ret; 1688 } 1689 1690 @Override 1691 protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { 1692 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1693 if (mContext.checkCallingOrSelfPermission( 1694 android.Manifest.permission.DUMP) 1695 != PackageManager.PERMISSION_GRANTED) { 1696 pw.println("Permission Denial: can't dump ConnectivityService " + 1697 "from from pid=" + Binder.getCallingPid() + ", uid=" + 1698 Binder.getCallingUid()); 1699 return; 1700 } 1701 1702 pw.println("NetworkFactories for:"); 1703 pw.increaseIndent(); 1704 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 1705 pw.println(nfi.name); 1706 } 1707 pw.decreaseIndent(); 1708 pw.println(); 1709 1710 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 1711 pw.print("Active default network: "); 1712 if (defaultNai == null) { 1713 pw.println("none"); 1714 } else { 1715 pw.println(defaultNai.network.netId); 1716 } 1717 pw.println(); 1718 1719 pw.println("Current Networks:"); 1720 pw.increaseIndent(); 1721 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 1722 pw.println(nai.toString()); 1723 pw.increaseIndent(); 1724 pw.println("Requests:"); 1725 pw.increaseIndent(); 1726 for (int i = 0; i < nai.networkRequests.size(); i++) { 1727 pw.println(nai.networkRequests.valueAt(i).toString()); 1728 } 1729 pw.decreaseIndent(); 1730 pw.println("Lingered:"); 1731 pw.increaseIndent(); 1732 for (NetworkRequest nr : nai.networkLingered) pw.println(nr.toString()); 1733 pw.decreaseIndent(); 1734 pw.decreaseIndent(); 1735 } 1736 pw.decreaseIndent(); 1737 pw.println(); 1738 1739 pw.println("Network Requests:"); 1740 pw.increaseIndent(); 1741 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 1742 pw.println(nri.toString()); 1743 } 1744 pw.println(); 1745 pw.decreaseIndent(); 1746 1747 pw.print("mActiveDefaultNetwork: " + mActiveDefaultNetwork); 1748 if (mActiveDefaultNetwork != TYPE_NONE) { 1749 NetworkInfo activeNetworkInfo = getActiveNetworkInfo(); 1750 if (activeNetworkInfo != null) { 1751 pw.print(" " + activeNetworkInfo.getState() + 1752 "/" + activeNetworkInfo.getDetailedState()); 1753 } 1754 } 1755 pw.println(); 1756 1757 pw.println("mLegacyTypeTracker:"); 1758 pw.increaseIndent(); 1759 mLegacyTypeTracker.dump(pw); 1760 pw.decreaseIndent(); 1761 pw.println(); 1762 1763 synchronized (this) { 1764 pw.println("NetworkTransitionWakeLock is currently " + 1765 (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held."); 1766 pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy); 1767 } 1768 pw.println(); 1769 1770 mTethering.dump(fd, pw, args); 1771 1772 if (mInetLog != null) { 1773 pw.println(); 1774 pw.println("Inet condition reports:"); 1775 pw.increaseIndent(); 1776 for(int i = 0; i < mInetLog.size(); i++) { 1777 pw.println(mInetLog.get(i)); 1778 } 1779 pw.decreaseIndent(); 1780 } 1781 } 1782 1783 private boolean isLiveNetworkAgent(NetworkAgentInfo nai, String msg) { 1784 if (nai.network == null) return false; 1785 final NetworkAgentInfo officialNai; 1786 synchronized (mNetworkForNetId) { 1787 officialNai = mNetworkForNetId.get(nai.network.netId); 1788 } 1789 if (officialNai != null && officialNai.equals(nai)) return true; 1790 if (officialNai != null || VDBG) { 1791 loge(msg + " - isLiveNetworkAgent found mismatched netId: " + officialNai + 1792 " - " + nai); 1793 } 1794 return false; 1795 } 1796 1797 // must be stateless - things change under us. 1798 private class NetworkStateTrackerHandler extends Handler { 1799 public NetworkStateTrackerHandler(Looper looper) { 1800 super(looper); 1801 } 1802 1803 @Override 1804 public void handleMessage(Message msg) { 1805 NetworkInfo info; 1806 switch (msg.what) { 1807 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 1808 handleAsyncChannelHalfConnect(msg); 1809 break; 1810 } 1811 case AsyncChannel.CMD_CHANNEL_DISCONNECT: { 1812 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1813 if (nai != null) nai.asyncChannel.disconnect(); 1814 break; 1815 } 1816 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 1817 handleAsyncChannelDisconnected(msg); 1818 break; 1819 } 1820 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { 1821 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1822 if (nai == null) { 1823 loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); 1824 } else { 1825 updateCapabilities(nai, (NetworkCapabilities)msg.obj); 1826 } 1827 break; 1828 } 1829 case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { 1830 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1831 if (nai == null) { 1832 loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); 1833 } else { 1834 if (VDBG) { 1835 log("Update of LinkProperties for " + nai.name() + 1836 "; created=" + nai.created); 1837 } 1838 LinkProperties oldLp = nai.linkProperties; 1839 synchronized (nai) { 1840 nai.linkProperties = (LinkProperties)msg.obj; 1841 } 1842 if (nai.created) updateLinkProperties(nai, oldLp); 1843 } 1844 break; 1845 } 1846 case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { 1847 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1848 if (nai == null) { 1849 loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); 1850 break; 1851 } 1852 info = (NetworkInfo) msg.obj; 1853 updateNetworkInfo(nai, info); 1854 break; 1855 } 1856 case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { 1857 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1858 if (nai == null) { 1859 loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); 1860 break; 1861 } 1862 Integer score = (Integer) msg.obj; 1863 if (score != null) updateNetworkScore(nai, score.intValue()); 1864 break; 1865 } 1866 case NetworkAgent.EVENT_UID_RANGES_ADDED: { 1867 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1868 if (nai == null) { 1869 loge("EVENT_UID_RANGES_ADDED from unknown NetworkAgent"); 1870 break; 1871 } 1872 try { 1873 mNetd.addVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1874 } catch (Exception e) { 1875 // Never crash! 1876 loge("Exception in addVpnUidRanges: " + e); 1877 } 1878 break; 1879 } 1880 case NetworkAgent.EVENT_UID_RANGES_REMOVED: { 1881 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1882 if (nai == null) { 1883 loge("EVENT_UID_RANGES_REMOVED from unknown NetworkAgent"); 1884 break; 1885 } 1886 try { 1887 mNetd.removeVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1888 } catch (Exception e) { 1889 // Never crash! 1890 loge("Exception in removeVpnUidRanges: " + e); 1891 } 1892 break; 1893 } 1894 case NetworkAgent.EVENT_BLOCK_ADDRESS_FAMILY: { 1895 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1896 if (nai == null) { 1897 loge("EVENT_BLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1898 break; 1899 } 1900 try { 1901 mNetd.blockAddressFamily((Integer) msg.obj, nai.network.netId, 1902 nai.linkProperties.getInterfaceName()); 1903 } catch (Exception e) { 1904 // Never crash! 1905 loge("Exception in blockAddressFamily: " + e); 1906 } 1907 break; 1908 } 1909 case NetworkAgent.EVENT_UNBLOCK_ADDRESS_FAMILY: { 1910 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1911 if (nai == null) { 1912 loge("EVENT_UNBLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1913 break; 1914 } 1915 try { 1916 mNetd.unblockAddressFamily((Integer) msg.obj, nai.network.netId, 1917 nai.linkProperties.getInterfaceName()); 1918 } catch (Exception e) { 1919 // Never crash! 1920 loge("Exception in blockAddressFamily: " + e); 1921 } 1922 break; 1923 } 1924 case NetworkMonitor.EVENT_NETWORK_TESTED: { 1925 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1926 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_VALIDATED")) { 1927 boolean valid = (msg.arg1 == NetworkMonitor.NETWORK_TEST_RESULT_VALID); 1928 if (valid) { 1929 if (DBG) log("Validated " + nai.name()); 1930 nai.validated = true; 1931 rematchNetworkAndRequests(nai); 1932 } 1933 updateInetCondition(nai, valid); 1934 } 1935 break; 1936 } 1937 case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { 1938 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1939 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_LINGER_COMPLETE")) { 1940 handleLingerComplete(nai); 1941 } 1942 break; 1943 } 1944 case NetworkMonitor.EVENT_PROVISIONING_NOTIFICATION: { 1945 if (msg.arg1 == 0) { 1946 setProvNotificationVisibleIntent(false, msg.arg2, 0, null, null); 1947 } else { 1948 NetworkAgentInfo nai = null; 1949 synchronized (mNetworkForNetId) { 1950 nai = mNetworkForNetId.get(msg.arg2); 1951 } 1952 if (nai == null) { 1953 loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); 1954 break; 1955 } 1956 setProvNotificationVisibleIntent(true, msg.arg2, nai.networkInfo.getType(), 1957 nai.networkInfo.getExtraInfo(), (PendingIntent)msg.obj); 1958 } 1959 break; 1960 } 1961 case NetworkStateTracker.EVENT_STATE_CHANGED: { 1962 info = (NetworkInfo) msg.obj; 1963 NetworkInfo.State state = info.getState(); 1964 1965 if (VDBG || (state == NetworkInfo.State.CONNECTED) || 1966 (state == NetworkInfo.State.DISCONNECTED) || 1967 (state == NetworkInfo.State.SUSPENDED)) { 1968 log("ConnectivityChange for " + 1969 info.getTypeName() + ": " + 1970 state + "/" + info.getDetailedState()); 1971 } 1972 1973 // Since mobile has the notion of a network/apn that can be used for 1974 // provisioning we need to check every time we're connected as 1975 // CaptiveProtalTracker won't detected it because DCT doesn't report it 1976 // as connected as ACTION_ANY_DATA_CONNECTION_STATE_CHANGED instead its 1977 // reported as ACTION_DATA_CONNECTION_CONNECTED_TO_PROVISIONING_APN. Which 1978 // is received by MDST and sent here as EVENT_STATE_CHANGED. 1979 if (ConnectivityManager.isNetworkTypeMobile(info.getType()) 1980 && (0 != Settings.Global.getInt(mContext.getContentResolver(), 1981 Settings.Global.DEVICE_PROVISIONED, 0)) 1982 && (((state == NetworkInfo.State.CONNECTED) 1983 && (info.getType() == ConnectivityManager.TYPE_MOBILE)) 1984 || info.isConnectedToProvisioningNetwork())) { 1985 log("ConnectivityChange checkMobileProvisioning for" 1986 + " TYPE_MOBILE or ProvisioningNetwork"); 1987 checkMobileProvisioning(CheckMp.MAX_TIMEOUT_MS); 1988 } 1989 1990 EventLogTags.writeConnectivityStateChanged( 1991 info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); 1992 1993 if (info.isConnectedToProvisioningNetwork()) { 1994 /** 1995 * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING 1996 * for now its an in between network, its a network that 1997 * is actually a default network but we don't want it to be 1998 * announced as such to keep background applications from 1999 * trying to use it. It turns out that some still try so we 2000 * take the additional step of clearing any default routes 2001 * to the link that may have incorrectly setup by the lower 2002 * levels. 2003 */ 2004 LinkProperties lp = getLinkPropertiesForTypeInternal(info.getType()); 2005 if (DBG) { 2006 log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); 2007 } 2008 2009 // Clear any default routes setup by the radio so 2010 // any activity by applications trying to use this 2011 // connection will fail until the provisioning network 2012 // is enabled. 2013 /* 2014 for (RouteInfo r : lp.getRoutes()) { 2015 removeRoute(lp, r, TO_DEFAULT_TABLE, 2016 mNetTrackers[info.getType()].getNetwork().netId); 2017 } 2018 */ 2019 } else if (state == NetworkInfo.State.DISCONNECTED) { 2020 } else if (state == NetworkInfo.State.SUSPENDED) { 2021 } else if (state == NetworkInfo.State.CONNECTED) { 2022 // handleConnect(info); 2023 } 2024 if (mLockdownTracker != null) { 2025 mLockdownTracker.onNetworkInfoChanged(info); 2026 } 2027 break; 2028 } 2029 case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { 2030 info = (NetworkInfo) msg.obj; 2031 // TODO: Temporary allowing network configuration 2032 // change not resetting sockets. 2033 // @see bug/4455071 2034 /* 2035 handleConnectivityChange(info.getType(), mCurrentLinkProperties[info.getType()], 2036 false); 2037 */ 2038 break; 2039 } 2040 } 2041 } 2042 } 2043 2044 private void handleAsyncChannelHalfConnect(Message msg) { 2045 AsyncChannel ac = (AsyncChannel) msg.obj; 2046 if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { 2047 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2048 if (VDBG) log("NetworkFactory connected"); 2049 // A network factory has connected. Send it all current NetworkRequests. 2050 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 2051 if (nri.isRequest == false) continue; 2052 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2053 ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, 2054 (nai != null ? nai.getCurrentScore() : 0), 0, nri.request); 2055 } 2056 } else { 2057 loge("Error connecting NetworkFactory"); 2058 mNetworkFactoryInfos.remove(msg.obj); 2059 } 2060 } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { 2061 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2062 if (VDBG) log("NetworkAgent connected"); 2063 // A network agent has requested a connection. Establish the connection. 2064 mNetworkAgentInfos.get(msg.replyTo).asyncChannel. 2065 sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 2066 } else { 2067 loge("Error connecting NetworkAgent"); 2068 NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); 2069 if (nai != null) { 2070 synchronized (mNetworkForNetId) { 2071 mNetworkForNetId.remove(nai.network.netId); 2072 } 2073 // Just in case. 2074 mLegacyTypeTracker.remove(nai); 2075 } 2076 } 2077 } 2078 } 2079 private void handleAsyncChannelDisconnected(Message msg) { 2080 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 2081 if (nai != null) { 2082 if (DBG) { 2083 log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); 2084 } 2085 // A network agent has disconnected. 2086 if (nai.created) { 2087 // Tell netd to clean up the configuration for this network 2088 // (routing rules, DNS, etc). 2089 try { 2090 mNetd.removeNetwork(nai.network.netId); 2091 } catch (Exception e) { 2092 loge("Exception removing network: " + e); 2093 } 2094 } 2095 // TODO - if we move the logic to the network agent (have them disconnect 2096 // because they lost all their requests or because their score isn't good) 2097 // then they would disconnect organically, report their new state and then 2098 // disconnect the channel. 2099 if (nai.networkInfo.isConnected()) { 2100 nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, 2101 null, null); 2102 } 2103 if (isDefaultNetwork(nai)) { 2104 mDefaultInetConditionPublished = 0; 2105 } 2106 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); 2107 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); 2108 mNetworkAgentInfos.remove(msg.replyTo); 2109 updateClat(null, nai.linkProperties, nai); 2110 mLegacyTypeTracker.remove(nai); 2111 synchronized (mNetworkForNetId) { 2112 mNetworkForNetId.remove(nai.network.netId); 2113 } 2114 // Since we've lost the network, go through all the requests that 2115 // it was satisfying and see if any other factory can satisfy them. 2116 final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); 2117 for (int i = 0; i < nai.networkRequests.size(); i++) { 2118 NetworkRequest request = nai.networkRequests.valueAt(i); 2119 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); 2120 if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { 2121 if (DBG) { 2122 log("Checking for replacement network to handle request " + request ); 2123 } 2124 mNetworkForRequestId.remove(request.requestId); 2125 sendUpdatedScoreToFactories(request, 0); 2126 NetworkAgentInfo alternative = null; 2127 for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { 2128 NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); 2129 if (existing.networkInfo.isConnected() && 2130 request.networkCapabilities.satisfiedByNetworkCapabilities( 2131 existing.networkCapabilities) && 2132 (alternative == null || 2133 alternative.getCurrentScore() < existing.getCurrentScore())) { 2134 alternative = existing; 2135 } 2136 } 2137 if (alternative != null) { 2138 if (DBG) log(" found replacement in " + alternative.name()); 2139 if (!toActivate.contains(alternative)) { 2140 toActivate.add(alternative); 2141 } 2142 } 2143 } 2144 } 2145 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 2146 removeDataActivityTracking(nai); 2147 mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; 2148 requestNetworkTransitionWakelock(nai.name()); 2149 } 2150 for (NetworkAgentInfo networkToActivate : toActivate) { 2151 networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2152 } 2153 } 2154 } 2155 2156 private void handleRegisterNetworkRequest(Message msg) { 2157 final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); 2158 final NetworkCapabilities newCap = nri.request.networkCapabilities; 2159 int score = 0; 2160 2161 // Check for the best currently alive network that satisfies this request 2162 NetworkAgentInfo bestNetwork = null; 2163 for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { 2164 if (DBG) log("handleRegisterNetworkRequest checking " + network.name()); 2165 if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { 2166 if (DBG) log("apparently satisfied. currentScore=" + network.getCurrentScore()); 2167 if ((bestNetwork == null) || 2168 bestNetwork.getCurrentScore() < network.getCurrentScore()) { 2169 if (!nri.isRequest) { 2170 // Not setting bestNetwork here as a listening NetworkRequest may be 2171 // satisfied by multiple Networks. Instead the request is added to 2172 // each satisfying Network and notified about each. 2173 network.addRequest(nri.request); 2174 notifyNetworkCallback(network, nri); 2175 } else { 2176 bestNetwork = network; 2177 } 2178 } 2179 } 2180 } 2181 if (bestNetwork != null) { 2182 if (DBG) log("using " + bestNetwork.name()); 2183 if (bestNetwork.networkInfo.isConnected()) { 2184 // Cancel any lingering so the linger timeout doesn't teardown this network 2185 // even though we have a request for it. 2186 bestNetwork.networkLingered.clear(); 2187 bestNetwork.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2188 } 2189 bestNetwork.addRequest(nri.request); 2190 mNetworkForRequestId.put(nri.request.requestId, bestNetwork); 2191 notifyNetworkCallback(bestNetwork, nri); 2192 score = bestNetwork.getCurrentScore(); 2193 if (nri.request.legacyType != TYPE_NONE) { 2194 mLegacyTypeTracker.add(nri.request.legacyType, bestNetwork); 2195 } 2196 } 2197 mNetworkRequests.put(nri.request, nri); 2198 if (nri.isRequest) { 2199 if (DBG) log("sending new NetworkRequest to factories"); 2200 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2201 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 2202 0, nri.request); 2203 } 2204 } 2205 } 2206 2207 private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) { 2208 NetworkRequestInfo nri = mNetworkRequests.get(request); 2209 if (nri != null) { 2210 if (Process.SYSTEM_UID != callingUid && nri.mUid != callingUid) { 2211 if (DBG) log("Attempt to release unowned NetworkRequest " + request); 2212 return; 2213 } 2214 if (DBG) log("releasing NetworkRequest " + request); 2215 nri.unlinkDeathRecipient(); 2216 mNetworkRequests.remove(request); 2217 if (nri.isRequest) { 2218 // Find all networks that are satisfying this request and remove the request 2219 // from their request lists. 2220 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2221 if (nai.networkRequests.get(nri.request.requestId) != null) { 2222 nai.networkRequests.remove(nri.request.requestId); 2223 if (DBG) { 2224 log(" Removing from current network " + nai.name() + 2225 ", leaving " + nai.networkRequests.size() + 2226 " requests."); 2227 } 2228 // check if has any requests remaining and if not, 2229 // disconnect (unless it's a VPN). 2230 boolean keep = nai.isVPN(); 2231 for (int i = 0; i < nai.networkRequests.size() && !keep; i++) { 2232 NetworkRequest r = nai.networkRequests.valueAt(i); 2233 if (mNetworkRequests.get(r).isRequest) keep = true; 2234 } 2235 if (!keep) { 2236 if (DBG) log("no live requests for " + nai.name() + "; disconnecting"); 2237 nai.asyncChannel.disconnect(); 2238 } 2239 } 2240 } 2241 2242 // Maintain the illusion. When this request arrived, we might have preteneded 2243 // that a network connected to serve it, even though the network was already 2244 // connected. Now that this request has gone away, we might have to pretend 2245 // that the network disconnected. LegacyTypeTracker will generate that 2246 // phatom disconnect for this type. 2247 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2248 if (nai != null) { 2249 mNetworkForRequestId.remove(nri.request.requestId); 2250 if (nri.request.legacyType != TYPE_NONE) { 2251 mLegacyTypeTracker.remove(nri.request.legacyType, nai); 2252 } 2253 } 2254 2255 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2256 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 2257 nri.request); 2258 } 2259 } else { 2260 // listens don't have a singular affectedNetwork. Check all networks to see 2261 // if this listen request applies and remove it. 2262 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2263 nai.networkRequests.remove(nri.request.requestId); 2264 } 2265 } 2266 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 2267 } 2268 } 2269 2270 private class InternalHandler extends Handler { 2271 public InternalHandler(Looper looper) { 2272 super(looper); 2273 } 2274 2275 @Override 2276 public void handleMessage(Message msg) { 2277 NetworkInfo info; 2278 switch (msg.what) { 2279 case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: 2280 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 2281 String causedBy = null; 2282 synchronized (ConnectivityService.this) { 2283 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 2284 mNetTransitionWakeLock.isHeld()) { 2285 mNetTransitionWakeLock.release(); 2286 causedBy = mNetTransitionWakeLockCausedBy; 2287 } else { 2288 break; 2289 } 2290 } 2291 if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { 2292 log("Failed to find a new network - expiring NetTransition Wakelock"); 2293 } else { 2294 log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + 2295 " cleared because we found a replacement network"); 2296 } 2297 break; 2298 } 2299 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 2300 handleDeprecatedGlobalHttpProxy(); 2301 break; 2302 } 2303 case EVENT_SET_DEPENDENCY_MET: { 2304 boolean met = (msg.arg1 == ENABLED); 2305 handleSetDependencyMet(msg.arg2, met); 2306 break; 2307 } 2308 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 2309 Intent intent = (Intent)msg.obj; 2310 sendStickyBroadcast(intent); 2311 break; 2312 } 2313 case EVENT_SET_POLICY_DATA_ENABLE: { 2314 final int networkType = msg.arg1; 2315 final boolean enabled = msg.arg2 == ENABLED; 2316 handleSetPolicyDataEnable(networkType, enabled); 2317 break; 2318 } 2319 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 2320 int tag = mEnableFailFastMobileDataTag.get(); 2321 if (msg.arg1 == tag) { 2322 MobileDataStateTracker mobileDst = 2323 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2324 if (mobileDst != null) { 2325 mobileDst.setEnableFailFastMobileData(msg.arg2); 2326 } 2327 } else { 2328 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 2329 + " != tag:" + tag); 2330 } 2331 break; 2332 } 2333 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 2334 handleNetworkSamplingTimeout(); 2335 break; 2336 } 2337 case EVENT_PROXY_HAS_CHANGED: { 2338 handleApplyDefaultProxy((ProxyInfo)msg.obj); 2339 break; 2340 } 2341 case EVENT_REGISTER_NETWORK_FACTORY: { 2342 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 2343 break; 2344 } 2345 case EVENT_UNREGISTER_NETWORK_FACTORY: { 2346 handleUnregisterNetworkFactory((Messenger)msg.obj); 2347 break; 2348 } 2349 case EVENT_REGISTER_NETWORK_AGENT: { 2350 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 2351 break; 2352 } 2353 case EVENT_REGISTER_NETWORK_REQUEST: 2354 case EVENT_REGISTER_NETWORK_LISTENER: { 2355 handleRegisterNetworkRequest(msg); 2356 break; 2357 } 2358 case EVENT_RELEASE_NETWORK_REQUEST: { 2359 handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); 2360 break; 2361 } 2362 case EVENT_SYSTEM_READY: { 2363 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2364 nai.networkMonitor.systemReady = true; 2365 } 2366 break; 2367 } 2368 } 2369 } 2370 } 2371 2372 // javadoc from interface 2373 public int tether(String iface) { 2374 enforceTetherChangePermission(); 2375 2376 if (isTetheringSupported()) { 2377 return mTethering.tether(iface); 2378 } else { 2379 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2380 } 2381 } 2382 2383 // javadoc from interface 2384 public int untether(String iface) { 2385 enforceTetherChangePermission(); 2386 2387 if (isTetheringSupported()) { 2388 return mTethering.untether(iface); 2389 } else { 2390 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2391 } 2392 } 2393 2394 // javadoc from interface 2395 public int getLastTetherError(String iface) { 2396 enforceTetherAccessPermission(); 2397 2398 if (isTetheringSupported()) { 2399 return mTethering.getLastTetherError(iface); 2400 } else { 2401 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2402 } 2403 } 2404 2405 // TODO - proper iface API for selection by property, inspection, etc 2406 public String[] getTetherableUsbRegexs() { 2407 enforceTetherAccessPermission(); 2408 if (isTetheringSupported()) { 2409 return mTethering.getTetherableUsbRegexs(); 2410 } else { 2411 return new String[0]; 2412 } 2413 } 2414 2415 public String[] getTetherableWifiRegexs() { 2416 enforceTetherAccessPermission(); 2417 if (isTetheringSupported()) { 2418 return mTethering.getTetherableWifiRegexs(); 2419 } else { 2420 return new String[0]; 2421 } 2422 } 2423 2424 public String[] getTetherableBluetoothRegexs() { 2425 enforceTetherAccessPermission(); 2426 if (isTetheringSupported()) { 2427 return mTethering.getTetherableBluetoothRegexs(); 2428 } else { 2429 return new String[0]; 2430 } 2431 } 2432 2433 public int setUsbTethering(boolean enable) { 2434 enforceTetherChangePermission(); 2435 if (isTetheringSupported()) { 2436 return mTethering.setUsbTethering(enable); 2437 } else { 2438 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2439 } 2440 } 2441 2442 // TODO - move iface listing, queries, etc to new module 2443 // javadoc from interface 2444 public String[] getTetherableIfaces() { 2445 enforceTetherAccessPermission(); 2446 return mTethering.getTetherableIfaces(); 2447 } 2448 2449 public String[] getTetheredIfaces() { 2450 enforceTetherAccessPermission(); 2451 return mTethering.getTetheredIfaces(); 2452 } 2453 2454 public String[] getTetheringErroredIfaces() { 2455 enforceTetherAccessPermission(); 2456 return mTethering.getErroredIfaces(); 2457 } 2458 2459 public String[] getTetheredDhcpRanges() { 2460 enforceConnectivityInternalPermission(); 2461 return mTethering.getTetheredDhcpRanges(); 2462 } 2463 2464 // if ro.tether.denied = true we default to no tethering 2465 // gservices could set the secure setting to 1 though to enable it on a build where it 2466 // had previously been turned off. 2467 public boolean isTetheringSupported() { 2468 enforceTetherAccessPermission(); 2469 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 2470 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 2471 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0) 2472 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); 2473 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 2474 mTethering.getTetherableWifiRegexs().length != 0 || 2475 mTethering.getTetherableBluetoothRegexs().length != 0) && 2476 mTethering.getUpstreamIfaceTypes().length != 0); 2477 } 2478 2479 // Called when we lose the default network and have no replacement yet. 2480 // This will automatically be cleared after X seconds or a new default network 2481 // becomes CONNECTED, whichever happens first. The timer is started by the 2482 // first caller and not restarted by subsequent callers. 2483 private void requestNetworkTransitionWakelock(String forWhom) { 2484 int serialNum = 0; 2485 synchronized (this) { 2486 if (mNetTransitionWakeLock.isHeld()) return; 2487 serialNum = ++mNetTransitionWakeLockSerialNumber; 2488 mNetTransitionWakeLock.acquire(); 2489 mNetTransitionWakeLockCausedBy = forWhom; 2490 } 2491 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2492 EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), 2493 mNetTransitionWakeLockTimeout); 2494 return; 2495 } 2496 2497 // 100 percent is full good, 0 is full bad. 2498 public void reportInetCondition(int networkType, int percentage) { 2499 if (percentage > 50) return; // don't handle good network reports 2500 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 2501 if (nai != null) reportBadNetwork(nai.network); 2502 } 2503 2504 public void reportBadNetwork(Network network) { 2505 enforceAccessPermission(); 2506 enforceInternetPermission(); 2507 2508 if (network == null) return; 2509 2510 final int uid = Binder.getCallingUid(); 2511 NetworkAgentInfo nai = null; 2512 synchronized (mNetworkForNetId) { 2513 nai = mNetworkForNetId.get(network.netId); 2514 } 2515 if (nai == null) return; 2516 synchronized (nai) { 2517 if (isNetworkBlocked(nai, uid)) return; 2518 2519 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_FORCE_REEVALUATION, uid); 2520 } 2521 } 2522 2523 public ProxyInfo getProxy() { 2524 // this information is already available as a world read/writable jvm property 2525 // so this API change wouldn't have a benifit. It also breaks the passing 2526 // of proxy info to all the JVMs. 2527 // enforceAccessPermission(); 2528 synchronized (mProxyLock) { 2529 ProxyInfo ret = mGlobalProxy; 2530 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 2531 return ret; 2532 } 2533 } 2534 2535 public void setGlobalProxy(ProxyInfo proxyProperties) { 2536 enforceConnectivityInternalPermission(); 2537 2538 synchronized (mProxyLock) { 2539 if (proxyProperties == mGlobalProxy) return; 2540 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 2541 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 2542 2543 String host = ""; 2544 int port = 0; 2545 String exclList = ""; 2546 String pacFileUrl = ""; 2547 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 2548 (proxyProperties.getPacFileUrl() != null))) { 2549 if (!proxyProperties.isValid()) { 2550 if (DBG) 2551 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2552 return; 2553 } 2554 mGlobalProxy = new ProxyInfo(proxyProperties); 2555 host = mGlobalProxy.getHost(); 2556 port = mGlobalProxy.getPort(); 2557 exclList = mGlobalProxy.getExclusionListAsString(); 2558 if (proxyProperties.getPacFileUrl() != null) { 2559 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 2560 } 2561 } else { 2562 mGlobalProxy = null; 2563 } 2564 ContentResolver res = mContext.getContentResolver(); 2565 final long token = Binder.clearCallingIdentity(); 2566 try { 2567 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 2568 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 2569 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 2570 exclList); 2571 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 2572 } finally { 2573 Binder.restoreCallingIdentity(token); 2574 } 2575 } 2576 2577 if (mGlobalProxy == null) { 2578 proxyProperties = mDefaultProxy; 2579 } 2580 sendProxyBroadcast(proxyProperties); 2581 } 2582 2583 private void loadGlobalProxy() { 2584 ContentResolver res = mContext.getContentResolver(); 2585 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 2586 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 2587 String exclList = Settings.Global.getString(res, 2588 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 2589 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 2590 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 2591 ProxyInfo proxyProperties; 2592 if (!TextUtils.isEmpty(pacFileUrl)) { 2593 proxyProperties = new ProxyInfo(pacFileUrl); 2594 } else { 2595 proxyProperties = new ProxyInfo(host, port, exclList); 2596 } 2597 if (!proxyProperties.isValid()) { 2598 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2599 return; 2600 } 2601 2602 synchronized (mProxyLock) { 2603 mGlobalProxy = proxyProperties; 2604 } 2605 } 2606 } 2607 2608 public ProxyInfo getGlobalProxy() { 2609 // this information is already available as a world read/writable jvm property 2610 // so this API change wouldn't have a benifit. It also breaks the passing 2611 // of proxy info to all the JVMs. 2612 // enforceAccessPermission(); 2613 synchronized (mProxyLock) { 2614 return mGlobalProxy; 2615 } 2616 } 2617 2618 private void handleApplyDefaultProxy(ProxyInfo proxy) { 2619 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 2620 && (proxy.getPacFileUrl() == null)) { 2621 proxy = null; 2622 } 2623 synchronized (mProxyLock) { 2624 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 2625 if (mDefaultProxy == proxy) return; // catches repeated nulls 2626 if (proxy != null && !proxy.isValid()) { 2627 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 2628 return; 2629 } 2630 2631 // This call could be coming from the PacManager, containing the port of the local 2632 // proxy. If this new proxy matches the global proxy then copy this proxy to the 2633 // global (to get the correct local port), and send a broadcast. 2634 // TODO: Switch PacManager to have its own message to send back rather than 2635 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 2636 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 2637 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 2638 mGlobalProxy = proxy; 2639 sendProxyBroadcast(mGlobalProxy); 2640 return; 2641 } 2642 mDefaultProxy = proxy; 2643 2644 if (mGlobalProxy != null) return; 2645 if (!mDefaultProxyDisabled) { 2646 sendProxyBroadcast(proxy); 2647 } 2648 } 2649 } 2650 2651 private void handleDeprecatedGlobalHttpProxy() { 2652 String proxy = Settings.Global.getString(mContext.getContentResolver(), 2653 Settings.Global.HTTP_PROXY); 2654 if (!TextUtils.isEmpty(proxy)) { 2655 String data[] = proxy.split(":"); 2656 if (data.length == 0) { 2657 return; 2658 } 2659 2660 String proxyHost = data[0]; 2661 int proxyPort = 8080; 2662 if (data.length > 1) { 2663 try { 2664 proxyPort = Integer.parseInt(data[1]); 2665 } catch (NumberFormatException e) { 2666 return; 2667 } 2668 } 2669 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 2670 setGlobalProxy(p); 2671 } 2672 } 2673 2674 private void sendProxyBroadcast(ProxyInfo proxy) { 2675 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 2676 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 2677 if (DBG) log("sending Proxy Broadcast for " + proxy); 2678 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 2679 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 2680 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2681 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 2682 final long ident = Binder.clearCallingIdentity(); 2683 try { 2684 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2685 } finally { 2686 Binder.restoreCallingIdentity(ident); 2687 } 2688 } 2689 2690 private static class SettingsObserver extends ContentObserver { 2691 private int mWhat; 2692 private Handler mHandler; 2693 SettingsObserver(Handler handler, int what) { 2694 super(handler); 2695 mHandler = handler; 2696 mWhat = what; 2697 } 2698 2699 void observe(Context context) { 2700 ContentResolver resolver = context.getContentResolver(); 2701 resolver.registerContentObserver(Settings.Global.getUriFor( 2702 Settings.Global.HTTP_PROXY), false, this); 2703 } 2704 2705 @Override 2706 public void onChange(boolean selfChange) { 2707 mHandler.obtainMessage(mWhat).sendToTarget(); 2708 } 2709 } 2710 2711 private static void log(String s) { 2712 Slog.d(TAG, s); 2713 } 2714 2715 private static void loge(String s) { 2716 Slog.e(TAG, s); 2717 } 2718 2719 int convertFeatureToNetworkType(int networkType, String feature) { 2720 int usedNetworkType = networkType; 2721 2722 if(networkType == ConnectivityManager.TYPE_MOBILE) { 2723 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 2724 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 2725 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 2726 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 2727 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 2728 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 2729 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 2730 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 2731 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 2732 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 2733 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 2734 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 2735 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 2736 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 2737 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 2738 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { 2739 usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; 2740 } else { 2741 Slog.e(TAG, "Can't match any mobile netTracker!"); 2742 } 2743 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 2744 if (TextUtils.equals(feature, "p2p")) { 2745 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 2746 } else { 2747 Slog.e(TAG, "Can't match any wifi netTracker!"); 2748 } 2749 } else { 2750 Slog.e(TAG, "Unexpected network type"); 2751 } 2752 return usedNetworkType; 2753 } 2754 2755 private static <T> T checkNotNull(T value, String message) { 2756 if (value == null) { 2757 throw new NullPointerException(message); 2758 } 2759 return value; 2760 } 2761 2762 /** 2763 * Prepare for a VPN application. This method is used by VpnDialogs 2764 * and not available in ConnectivityManager. Permissions are checked 2765 * in Vpn class. 2766 * @hide 2767 */ 2768 @Override 2769 public boolean prepareVpn(String oldPackage, String newPackage) { 2770 throwIfLockdownEnabled(); 2771 int user = UserHandle.getUserId(Binder.getCallingUid()); 2772 synchronized(mVpns) { 2773 return mVpns.get(user).prepare(oldPackage, newPackage); 2774 } 2775 } 2776 2777 /** 2778 * Set whether the current VPN package has the ability to launch VPNs without 2779 * user intervention. This method is used by system UIs and not available 2780 * in ConnectivityManager. Permissions are checked in Vpn class. 2781 * @hide 2782 */ 2783 @Override 2784 public void setVpnPackageAuthorization(boolean authorized) { 2785 int user = UserHandle.getUserId(Binder.getCallingUid()); 2786 synchronized(mVpns) { 2787 mVpns.get(user).setPackageAuthorization(authorized); 2788 } 2789 } 2790 2791 /** 2792 * Configure a TUN interface and return its file descriptor. Parameters 2793 * are encoded and opaque to this class. This method is used by VpnBuilder 2794 * and not available in ConnectivityManager. Permissions are checked in 2795 * Vpn class. 2796 * @hide 2797 */ 2798 @Override 2799 public ParcelFileDescriptor establishVpn(VpnConfig config) { 2800 throwIfLockdownEnabled(); 2801 int user = UserHandle.getUserId(Binder.getCallingUid()); 2802 synchronized(mVpns) { 2803 return mVpns.get(user).establish(config); 2804 } 2805 } 2806 2807 /** 2808 * Start legacy VPN, controlling native daemons as needed. Creates a 2809 * secondary thread to perform connection work, returning quickly. 2810 */ 2811 @Override 2812 public void startLegacyVpn(VpnProfile profile) { 2813 throwIfLockdownEnabled(); 2814 final LinkProperties egress = getActiveLinkProperties(); 2815 if (egress == null) { 2816 throw new IllegalStateException("Missing active network connection"); 2817 } 2818 int user = UserHandle.getUserId(Binder.getCallingUid()); 2819 synchronized(mVpns) { 2820 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 2821 } 2822 } 2823 2824 /** 2825 * Return the information of the ongoing legacy VPN. This method is used 2826 * by VpnSettings and not available in ConnectivityManager. Permissions 2827 * are checked in Vpn class. 2828 * @hide 2829 */ 2830 @Override 2831 public LegacyVpnInfo getLegacyVpnInfo() { 2832 throwIfLockdownEnabled(); 2833 int user = UserHandle.getUserId(Binder.getCallingUid()); 2834 synchronized(mVpns) { 2835 return mVpns.get(user).getLegacyVpnInfo(); 2836 } 2837 } 2838 2839 /** 2840 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 2841 * not available in ConnectivityManager. 2842 * Permissions are checked in Vpn class. 2843 * @hide 2844 */ 2845 @Override 2846 public VpnConfig getVpnConfig() { 2847 int user = UserHandle.getUserId(Binder.getCallingUid()); 2848 synchronized(mVpns) { 2849 return mVpns.get(user).getVpnConfig(); 2850 } 2851 } 2852 2853 @Override 2854 public boolean updateLockdownVpn() { 2855 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 2856 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 2857 return false; 2858 } 2859 2860 // Tear down existing lockdown if profile was removed 2861 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 2862 if (mLockdownEnabled) { 2863 if (!mKeyStore.isUnlocked()) { 2864 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 2865 return false; 2866 } 2867 2868 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 2869 final VpnProfile profile = VpnProfile.decode( 2870 profileName, mKeyStore.get(Credentials.VPN + profileName)); 2871 int user = UserHandle.getUserId(Binder.getCallingUid()); 2872 synchronized(mVpns) { 2873 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 2874 profile)); 2875 } 2876 } else { 2877 setLockdownTracker(null); 2878 } 2879 2880 return true; 2881 } 2882 2883 /** 2884 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 2885 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 2886 */ 2887 private void setLockdownTracker(LockdownVpnTracker tracker) { 2888 // Shutdown any existing tracker 2889 final LockdownVpnTracker existing = mLockdownTracker; 2890 mLockdownTracker = null; 2891 if (existing != null) { 2892 existing.shutdown(); 2893 } 2894 2895 try { 2896 if (tracker != null) { 2897 mNetd.setFirewallEnabled(true); 2898 mNetd.setFirewallInterfaceRule("lo", true); 2899 mLockdownTracker = tracker; 2900 mLockdownTracker.init(); 2901 } else { 2902 mNetd.setFirewallEnabled(false); 2903 } 2904 } catch (RemoteException e) { 2905 // ignored; NMS lives inside system_server 2906 } 2907 } 2908 2909 private void throwIfLockdownEnabled() { 2910 if (mLockdownEnabled) { 2911 throw new IllegalStateException("Unavailable in lockdown mode"); 2912 } 2913 } 2914 2915 public void supplyMessenger(int networkType, Messenger messenger) { 2916 enforceConnectivityInternalPermission(); 2917 2918 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 2919 mNetTrackers[networkType].supplyMessenger(messenger); 2920 } 2921 } 2922 2923 public int findConnectionTypeForIface(String iface) { 2924 enforceConnectivityInternalPermission(); 2925 2926 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 2927 2928 synchronized(mNetworkForNetId) { 2929 for (int i = 0; i < mNetworkForNetId.size(); i++) { 2930 NetworkAgentInfo nai = mNetworkForNetId.valueAt(i); 2931 LinkProperties lp = nai.linkProperties; 2932 if (lp != null && iface.equals(lp.getInterfaceName()) && nai.networkInfo != null) { 2933 return nai.networkInfo.getType(); 2934 } 2935 } 2936 } 2937 return ConnectivityManager.TYPE_NONE; 2938 } 2939 2940 /** 2941 * Have mobile data fail fast if enabled. 2942 * 2943 * @param enabled DctConstants.ENABLED/DISABLED 2944 */ 2945 private void setEnableFailFastMobileData(int enabled) { 2946 int tag; 2947 2948 if (enabled == DctConstants.ENABLED) { 2949 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 2950 } else { 2951 tag = mEnableFailFastMobileDataTag.get(); 2952 } 2953 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 2954 enabled)); 2955 } 2956 2957 private boolean isMobileDataStateTrackerReady() { 2958 MobileDataStateTracker mdst = 2959 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 2960 return (mdst != null) && (mdst.isReady()); 2961 } 2962 2963 /** 2964 * The ResultReceiver resultCode for checkMobileProvisioning (CMP_RESULT_CODE) 2965 */ 2966 2967 /** 2968 * No connection was possible to the network. 2969 * This is NOT a warm sim. 2970 */ 2971 private static final int CMP_RESULT_CODE_NO_CONNECTION = 0; 2972 2973 /** 2974 * A connection was made to the internet, all is well. 2975 * This is NOT a warm sim. 2976 */ 2977 private static final int CMP_RESULT_CODE_CONNECTABLE = 1; 2978 2979 /** 2980 * A connection was made but no dns server was available to resolve a name to address. 2981 * This is NOT a warm sim since provisioning network is supported. 2982 */ 2983 private static final int CMP_RESULT_CODE_NO_DNS = 2; 2984 2985 /** 2986 * A connection was made but could not open a TCP connection. 2987 * This is NOT a warm sim since provisioning network is supported. 2988 */ 2989 private static final int CMP_RESULT_CODE_NO_TCP_CONNECTION = 3; 2990 2991 /** 2992 * A connection was made but there was a redirection, we appear to be in walled garden. 2993 * This is an indication of a warm sim on a mobile network such as T-Mobile. 2994 */ 2995 private static final int CMP_RESULT_CODE_REDIRECTED = 4; 2996 2997 /** 2998 * The mobile network is a provisioning network. 2999 * This is an indication of a warm sim on a mobile network such as AT&T. 3000 */ 3001 private static final int CMP_RESULT_CODE_PROVISIONING_NETWORK = 5; 3002 3003 /** 3004 * The mobile network is provisioning 3005 */ 3006 private static final int CMP_RESULT_CODE_IS_PROVISIONING = 6; 3007 3008 private AtomicBoolean mIsProvisioningNetwork = new AtomicBoolean(false); 3009 private AtomicBoolean mIsStartingProvisioning = new AtomicBoolean(false); 3010 3011 private AtomicBoolean mIsCheckingMobileProvisioning = new AtomicBoolean(false); 3012 3013 @Override 3014 public int checkMobileProvisioning(int suggestedTimeOutMs) { 3015 int timeOutMs = -1; 3016 if (DBG) log("checkMobileProvisioning: E suggestedTimeOutMs=" + suggestedTimeOutMs); 3017 enforceConnectivityInternalPermission(); 3018 3019 final long token = Binder.clearCallingIdentity(); 3020 try { 3021 timeOutMs = suggestedTimeOutMs; 3022 if (suggestedTimeOutMs > CheckMp.MAX_TIMEOUT_MS) { 3023 timeOutMs = CheckMp.MAX_TIMEOUT_MS; 3024 } 3025 3026 // Check that mobile networks are supported 3027 if (!isNetworkSupported(ConnectivityManager.TYPE_MOBILE) 3028 || !isNetworkSupported(ConnectivityManager.TYPE_MOBILE_HIPRI)) { 3029 if (DBG) log("checkMobileProvisioning: X no mobile network"); 3030 return timeOutMs; 3031 } 3032 3033 // If we're already checking don't do it again 3034 // TODO: Add a queue of results... 3035 if (mIsCheckingMobileProvisioning.getAndSet(true)) { 3036 if (DBG) log("checkMobileProvisioning: X already checking ignore for the moment"); 3037 return timeOutMs; 3038 } 3039 3040 // Start off with mobile notification off 3041 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3042 3043 CheckMp checkMp = new CheckMp(mContext, this); 3044 CheckMp.CallBack cb = new CheckMp.CallBack() { 3045 @Override 3046 void onComplete(Integer result) { 3047 if (DBG) log("CheckMp.onComplete: result=" + result); 3048 NetworkInfo ni = 3049 mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI].getNetworkInfo(); 3050 switch(result) { 3051 case CMP_RESULT_CODE_CONNECTABLE: 3052 case CMP_RESULT_CODE_NO_CONNECTION: 3053 case CMP_RESULT_CODE_NO_DNS: 3054 case CMP_RESULT_CODE_NO_TCP_CONNECTION: { 3055 if (DBG) log("CheckMp.onComplete: ignore, connected or no connection"); 3056 break; 3057 } 3058 case CMP_RESULT_CODE_REDIRECTED: { 3059 if (DBG) log("CheckMp.onComplete: warm sim"); 3060 String url = getMobileProvisioningUrl(); 3061 if (TextUtils.isEmpty(url)) { 3062 url = getMobileRedirectedProvisioningUrl(); 3063 } 3064 if (TextUtils.isEmpty(url) == false) { 3065 if (DBG) log("CheckMp.onComplete: warm (redirected), url=" + url); 3066 setProvNotificationVisible(true, 3067 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 3068 url); 3069 } else { 3070 if (DBG) log("CheckMp.onComplete: warm (redirected), no url"); 3071 } 3072 break; 3073 } 3074 case CMP_RESULT_CODE_PROVISIONING_NETWORK: { 3075 String url = getMobileProvisioningUrl(); 3076 if (TextUtils.isEmpty(url) == false) { 3077 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), url=" + url); 3078 setProvNotificationVisible(true, 3079 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 3080 url); 3081 // Mark that we've got a provisioning network and 3082 // Disable Mobile Data until user actually starts provisioning. 3083 mIsProvisioningNetwork.set(true); 3084 MobileDataStateTracker mdst = (MobileDataStateTracker) 3085 mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3086 3087 // Disable radio until user starts provisioning 3088 mdst.setRadio(false); 3089 } else { 3090 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), no url"); 3091 } 3092 break; 3093 } 3094 case CMP_RESULT_CODE_IS_PROVISIONING: { 3095 // FIXME: Need to know when provisioning is done. Probably we can 3096 // check the completion status if successful we're done if we 3097 // "timedout" or still connected to provisioning APN turn off data? 3098 if (DBG) log("CheckMp.onComplete: provisioning started"); 3099 mIsStartingProvisioning.set(false); 3100 break; 3101 } 3102 default: { 3103 loge("CheckMp.onComplete: ignore unexpected result=" + result); 3104 break; 3105 } 3106 } 3107 mIsCheckingMobileProvisioning.set(false); 3108 } 3109 }; 3110 CheckMp.Params params = 3111 new CheckMp.Params(checkMp.getDefaultUrl(), timeOutMs, cb); 3112 if (DBG) log("checkMobileProvisioning: params=" + params); 3113 // TODO: Reenable when calls to the now defunct 3114 // MobileDataStateTracker.isProvisioningNetwork() are removed. 3115 // This code should be moved to the Telephony code. 3116 // checkMp.execute(params); 3117 } finally { 3118 Binder.restoreCallingIdentity(token); 3119 if (DBG) log("checkMobileProvisioning: X"); 3120 } 3121 return timeOutMs; 3122 } 3123 3124 static class CheckMp extends 3125 AsyncTask<CheckMp.Params, Void, Integer> { 3126 private static final String CHECKMP_TAG = "CheckMp"; 3127 3128 // adb shell setprop persist.checkmp.testfailures 1 to enable testing failures 3129 private static boolean mTestingFailures; 3130 3131 // Choosing 4 loops as half of them will use HTTPS and the other half HTTP 3132 private static final int MAX_LOOPS = 4; 3133 3134 // Number of milli-seconds to complete all of the retires 3135 public static final int MAX_TIMEOUT_MS = 60000; 3136 3137 // The socket should retry only 5 seconds, the default is longer 3138 private static final int SOCKET_TIMEOUT_MS = 5000; 3139 3140 // Sleep time for network errors 3141 private static final int NET_ERROR_SLEEP_SEC = 3; 3142 3143 // Sleep time for network route establishment 3144 private static final int NET_ROUTE_ESTABLISHMENT_SLEEP_SEC = 3; 3145 3146 // Short sleep time for polling :( 3147 private static final int POLLING_SLEEP_SEC = 1; 3148 3149 private Context mContext; 3150 private ConnectivityService mCs; 3151 private TelephonyManager mTm; 3152 private Params mParams; 3153 3154 /** 3155 * Parameters for AsyncTask.execute 3156 */ 3157 static class Params { 3158 private String mUrl; 3159 private long mTimeOutMs; 3160 private CallBack mCb; 3161 3162 Params(String url, long timeOutMs, CallBack cb) { 3163 mUrl = url; 3164 mTimeOutMs = timeOutMs; 3165 mCb = cb; 3166 } 3167 3168 @Override 3169 public String toString() { 3170 return "{" + " url=" + mUrl + " mTimeOutMs=" + mTimeOutMs + " mCb=" + mCb + "}"; 3171 } 3172 } 3173 3174 // As explained to me by Brian Carlstrom and Kenny Root, Certificates can be 3175 // issued by name or ip address, for Google its by name so when we construct 3176 // this HostnameVerifier we'll pass the original Uri and use it to verify 3177 // the host. If the host name in the original uril fails we'll test the 3178 // hostname parameter just incase things change. 3179 static class CheckMpHostnameVerifier implements HostnameVerifier { 3180 Uri mOrgUri; 3181 3182 CheckMpHostnameVerifier(Uri orgUri) { 3183 mOrgUri = orgUri; 3184 } 3185 3186 @Override 3187 public boolean verify(String hostname, SSLSession session) { 3188 HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier(); 3189 String orgUriHost = mOrgUri.getHost(); 3190 boolean retVal = hv.verify(orgUriHost, session) || hv.verify(hostname, session); 3191 if (DBG) { 3192 log("isMobileOk: hostnameVerify retVal=" + retVal + " hostname=" + hostname 3193 + " orgUriHost=" + orgUriHost); 3194 } 3195 return retVal; 3196 } 3197 } 3198 3199 /** 3200 * The call back object passed in Params. onComplete will be called 3201 * on the main thread. 3202 */ 3203 abstract static class CallBack { 3204 // Called on the main thread. 3205 abstract void onComplete(Integer result); 3206 } 3207 3208 public CheckMp(Context context, ConnectivityService cs) { 3209 if (Build.IS_DEBUGGABLE) { 3210 mTestingFailures = 3211 SystemProperties.getInt("persist.checkmp.testfailures", 0) == 1; 3212 } else { 3213 mTestingFailures = false; 3214 } 3215 3216 mContext = context; 3217 mCs = cs; 3218 3219 // Setup access to TelephonyService we'll be using. 3220 mTm = (TelephonyManager) mContext.getSystemService( 3221 Context.TELEPHONY_SERVICE); 3222 } 3223 3224 /** 3225 * Get the default url to use for the test. 3226 */ 3227 public String getDefaultUrl() { 3228 // See http://go/clientsdns for usage approval 3229 String server = Settings.Global.getString(mContext.getContentResolver(), 3230 Settings.Global.CAPTIVE_PORTAL_SERVER); 3231 if (server == null) { 3232 server = "clients3.google.com"; 3233 } 3234 return "http://" + server + "/generate_204"; 3235 } 3236 3237 /** 3238 * Detect if its possible to connect to the http url. DNS based detection techniques 3239 * do not work at all hotspots. The best way to check is to perform a request to 3240 * a known address that fetches the data we expect. 3241 */ 3242 private synchronized Integer isMobileOk(Params params) { 3243 Integer result = CMP_RESULT_CODE_NO_CONNECTION; 3244 Uri orgUri = Uri.parse(params.mUrl); 3245 Random rand = new Random(); 3246 mParams = params; 3247 3248 if (mCs.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false) { 3249 result = CMP_RESULT_CODE_NO_CONNECTION; 3250 log("isMobileOk: X not mobile capable result=" + result); 3251 return result; 3252 } 3253 3254 if (mCs.mIsStartingProvisioning.get()) { 3255 result = CMP_RESULT_CODE_IS_PROVISIONING; 3256 log("isMobileOk: X is provisioning result=" + result); 3257 return result; 3258 } 3259 3260 // See if we've already determined we've got a provisioning connection, 3261 // if so we don't need to do anything active. 3262 MobileDataStateTracker mdstDefault = (MobileDataStateTracker) 3263 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3264 boolean isDefaultProvisioning = mdstDefault.isProvisioningNetwork(); 3265 log("isMobileOk: isDefaultProvisioning=" + isDefaultProvisioning); 3266 3267 MobileDataStateTracker mdstHipri = (MobileDataStateTracker) 3268 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3269 boolean isHipriProvisioning = mdstHipri.isProvisioningNetwork(); 3270 log("isMobileOk: isHipriProvisioning=" + isHipriProvisioning); 3271 3272 if (isDefaultProvisioning || isHipriProvisioning) { 3273 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3274 log("isMobileOk: X default || hipri is provisioning result=" + result); 3275 return result; 3276 } 3277 3278 try { 3279 // Continue trying to connect until time has run out 3280 long endTime = SystemClock.elapsedRealtime() + params.mTimeOutMs; 3281 3282 if (!mCs.isMobileDataStateTrackerReady()) { 3283 // Wait for MobileDataStateTracker to be ready. 3284 if (DBG) log("isMobileOk: mdst is not ready"); 3285 while(SystemClock.elapsedRealtime() < endTime) { 3286 if (mCs.isMobileDataStateTrackerReady()) { 3287 // Enable fail fast as we'll do retries here and use a 3288 // hipri connection so the default connection stays active. 3289 if (DBG) log("isMobileOk: mdst ready, enable fail fast of mobile data"); 3290 mCs.setEnableFailFastMobileData(DctConstants.ENABLED); 3291 break; 3292 } 3293 sleep(POLLING_SLEEP_SEC); 3294 } 3295 } 3296 3297 log("isMobileOk: start hipri url=" + params.mUrl); 3298 3299 // First wait until we can start using hipri 3300 Binder binder = new Binder(); 3301/* 3302 while(SystemClock.elapsedRealtime() < endTime) { 3303 int ret = mCs.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3304 Phone.FEATURE_ENABLE_HIPRI, binder); 3305 if ((ret == PhoneConstants.APN_ALREADY_ACTIVE) 3306 || (ret == PhoneConstants.APN_REQUEST_STARTED)) { 3307 log("isMobileOk: hipri started"); 3308 break; 3309 } 3310 if (VDBG) log("isMobileOk: hipri not started yet"); 3311 result = CMP_RESULT_CODE_NO_CONNECTION; 3312 sleep(POLLING_SLEEP_SEC); 3313 } 3314*/ 3315 // Continue trying to connect until time has run out 3316 while(SystemClock.elapsedRealtime() < endTime) { 3317 try { 3318 // Wait for hipri to connect. 3319 // TODO: Don't poll and handle situation where hipri fails 3320 // because default is retrying. See b/9569540 3321 NetworkInfo.State state = mCs 3322 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3323 if (state != NetworkInfo.State.CONNECTED) { 3324 if (true/*VDBG*/) { 3325 log("isMobileOk: not connected ni=" + 3326 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3327 } 3328 sleep(POLLING_SLEEP_SEC); 3329 result = CMP_RESULT_CODE_NO_CONNECTION; 3330 continue; 3331 } 3332 3333 // Hipri has started check if this is a provisioning url 3334 MobileDataStateTracker mdst = (MobileDataStateTracker) 3335 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3336 if (mdst.isProvisioningNetwork()) { 3337 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3338 if (DBG) log("isMobileOk: X isProvisioningNetwork result=" + result); 3339 return result; 3340 } else { 3341 if (DBG) log("isMobileOk: isProvisioningNetwork is false, continue"); 3342 } 3343 3344 // Get of the addresses associated with the url host. We need to use the 3345 // address otherwise HttpURLConnection object will use the name to get 3346 // the addresses and will try every address but that will bypass the 3347 // route to host we setup and the connection could succeed as the default 3348 // interface might be connected to the internet via wifi or other interface. 3349 InetAddress[] addresses; 3350 try { 3351 addresses = InetAddress.getAllByName(orgUri.getHost()); 3352 } catch (UnknownHostException e) { 3353 result = CMP_RESULT_CODE_NO_DNS; 3354 log("isMobileOk: X UnknownHostException result=" + result); 3355 return result; 3356 } 3357 log("isMobileOk: addresses=" + inetAddressesToString(addresses)); 3358 3359 // Get the type of addresses supported by this link 3360 LinkProperties lp = mCs.getLinkPropertiesForTypeInternal( 3361 ConnectivityManager.TYPE_MOBILE_HIPRI); 3362 boolean linkHasIpv4 = lp.hasIPv4Address(); 3363 boolean linkHasIpv6 = lp.hasGlobalIPv6Address(); 3364 log("isMobileOk: linkHasIpv4=" + linkHasIpv4 3365 + " linkHasIpv6=" + linkHasIpv6); 3366 3367 final ArrayList<InetAddress> validAddresses = 3368 new ArrayList<InetAddress>(addresses.length); 3369 3370 for (InetAddress addr : addresses) { 3371 if (((addr instanceof Inet4Address) && linkHasIpv4) || 3372 ((addr instanceof Inet6Address) && linkHasIpv6)) { 3373 validAddresses.add(addr); 3374 } 3375 } 3376 3377 if (validAddresses.size() == 0) { 3378 return CMP_RESULT_CODE_NO_CONNECTION; 3379 } 3380 3381 int addrTried = 0; 3382 while (true) { 3383 // Loop through at most MAX_LOOPS valid addresses or until 3384 // we run out of time 3385 if (addrTried++ >= MAX_LOOPS) { 3386 log("isMobileOk: too many loops tried - giving up"); 3387 break; 3388 } 3389 if (SystemClock.elapsedRealtime() >= endTime) { 3390 log("isMobileOk: spend too much time - giving up"); 3391 break; 3392 } 3393 3394 InetAddress hostAddr = validAddresses.get(rand.nextInt( 3395 validAddresses.size())); 3396 3397 // Make a route to host so we check the specific interface. 3398 if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI, 3399 hostAddr.getAddress())) { 3400 // Wait a short time to be sure the route is established ?? 3401 log("isMobileOk:" 3402 + " wait to establish route to hostAddr=" + hostAddr); 3403 sleep(NET_ROUTE_ESTABLISHMENT_SLEEP_SEC); 3404 } else { 3405 log("isMobileOk:" 3406 + " could not establish route to hostAddr=" + hostAddr); 3407 // Wait a short time before the next attempt 3408 sleep(NET_ERROR_SLEEP_SEC); 3409 continue; 3410 } 3411 3412 // Rewrite the url to have numeric address to use the specific route 3413 // using http for half the attempts and https for the other half. 3414 // Doing https first and http second as on a redirected walled garden 3415 // such as t-mobile uses we get a SocketTimeoutException: "SSL 3416 // handshake timed out" which we declare as 3417 // CMP_RESULT_CODE_NO_TCP_CONNECTION. We could change this, but by 3418 // having http second we will be using logic used for some time. 3419 URL newUrl; 3420 String scheme = (addrTried <= (MAX_LOOPS/2)) ? "https" : "http"; 3421 newUrl = new URL(scheme, hostAddr.getHostAddress(), 3422 orgUri.getPath()); 3423 log("isMobileOk: newUrl=" + newUrl); 3424 3425 HttpURLConnection urlConn = null; 3426 try { 3427 // Open the connection set the request headers and get the response 3428 urlConn = (HttpURLConnection)newUrl.openConnection( 3429 java.net.Proxy.NO_PROXY); 3430 if (scheme.equals("https")) { 3431 ((HttpsURLConnection)urlConn).setHostnameVerifier( 3432 new CheckMpHostnameVerifier(orgUri)); 3433 } 3434 urlConn.setInstanceFollowRedirects(false); 3435 urlConn.setConnectTimeout(SOCKET_TIMEOUT_MS); 3436 urlConn.setReadTimeout(SOCKET_TIMEOUT_MS); 3437 urlConn.setUseCaches(false); 3438 urlConn.setAllowUserInteraction(false); 3439 // Set the "Connection" to "Close" as by default "Keep-Alive" 3440 // is used which is useless in this case. 3441 urlConn.setRequestProperty("Connection", "close"); 3442 int responseCode = urlConn.getResponseCode(); 3443 3444 // For debug display the headers 3445 Map<String, List<String>> headers = urlConn.getHeaderFields(); 3446 log("isMobileOk: headers=" + headers); 3447 3448 // Close the connection 3449 urlConn.disconnect(); 3450 urlConn = null; 3451 3452 if (mTestingFailures) { 3453 // Pretend no connection, this tests using http and https 3454 result = CMP_RESULT_CODE_NO_CONNECTION; 3455 log("isMobileOk: TESTING_FAILURES, pretend no connction"); 3456 continue; 3457 } 3458 3459 if (responseCode == 204) { 3460 // Return 3461 result = CMP_RESULT_CODE_CONNECTABLE; 3462 log("isMobileOk: X got expected responseCode=" + responseCode 3463 + " result=" + result); 3464 return result; 3465 } else { 3466 // Retry to be sure this was redirected, we've gotten 3467 // occasions where a server returned 200 even though 3468 // the device didn't have a "warm" sim. 3469 log("isMobileOk: not expected responseCode=" + responseCode); 3470 // TODO - it would be nice in the single-address case to do 3471 // another DNS resolve here, but flushing the cache is a bit 3472 // heavy-handed. 3473 result = CMP_RESULT_CODE_REDIRECTED; 3474 } 3475 } catch (Exception e) { 3476 log("isMobileOk: HttpURLConnection Exception" + e); 3477 result = CMP_RESULT_CODE_NO_TCP_CONNECTION; 3478 if (urlConn != null) { 3479 urlConn.disconnect(); 3480 urlConn = null; 3481 } 3482 sleep(NET_ERROR_SLEEP_SEC); 3483 continue; 3484 } 3485 } 3486 log("isMobileOk: X loops|timed out result=" + result); 3487 return result; 3488 } catch (Exception e) { 3489 log("isMobileOk: Exception e=" + e); 3490 continue; 3491 } 3492 } 3493 log("isMobileOk: timed out"); 3494 } finally { 3495 log("isMobileOk: F stop hipri"); 3496 mCs.setEnableFailFastMobileData(DctConstants.DISABLED); 3497// mCs.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3498// Phone.FEATURE_ENABLE_HIPRI); 3499 3500 // Wait for hipri to disconnect. 3501 long endTime = SystemClock.elapsedRealtime() + 5000; 3502 3503 while(SystemClock.elapsedRealtime() < endTime) { 3504 NetworkInfo.State state = mCs 3505 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3506 if (state != NetworkInfo.State.DISCONNECTED) { 3507 if (VDBG) { 3508 log("isMobileOk: connected ni=" + 3509 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3510 } 3511 sleep(POLLING_SLEEP_SEC); 3512 continue; 3513 } 3514 } 3515 3516 log("isMobileOk: X result=" + result); 3517 } 3518 return result; 3519 } 3520 3521 @Override 3522 protected Integer doInBackground(Params... params) { 3523 return isMobileOk(params[0]); 3524 } 3525 3526 @Override 3527 protected void onPostExecute(Integer result) { 3528 log("onPostExecute: result=" + result); 3529 if ((mParams != null) && (mParams.mCb != null)) { 3530 mParams.mCb.onComplete(result); 3531 } 3532 } 3533 3534 private String inetAddressesToString(InetAddress[] addresses) { 3535 StringBuffer sb = new StringBuffer(); 3536 boolean firstTime = true; 3537 for(InetAddress addr : addresses) { 3538 if (firstTime) { 3539 firstTime = false; 3540 } else { 3541 sb.append(","); 3542 } 3543 sb.append(addr); 3544 } 3545 return sb.toString(); 3546 } 3547 3548 private void printNetworkInfo() { 3549 boolean hasIccCard = mTm.hasIccCard(); 3550 int simState = mTm.getSimState(); 3551 log("hasIccCard=" + hasIccCard 3552 + " simState=" + simState); 3553 NetworkInfo[] ni = mCs.getAllNetworkInfo(); 3554 if (ni != null) { 3555 log("ni.length=" + ni.length); 3556 for (NetworkInfo netInfo: ni) { 3557 log("netInfo=" + netInfo.toString()); 3558 } 3559 } else { 3560 log("no network info ni=null"); 3561 } 3562 } 3563 3564 /** 3565 * Sleep for a few seconds then return. 3566 * @param seconds 3567 */ 3568 private static void sleep(int seconds) { 3569 long stopTime = System.nanoTime() + (seconds * 1000000000); 3570 long sleepTime; 3571 while ((sleepTime = stopTime - System.nanoTime()) > 0) { 3572 try { 3573 Thread.sleep(sleepTime / 1000000); 3574 } catch (InterruptedException ignored) { 3575 } 3576 } 3577 } 3578 3579 private static void log(String s) { 3580 Slog.d(ConnectivityService.TAG, "[" + CHECKMP_TAG + "] " + s); 3581 } 3582 } 3583 3584 // TODO: Move to ConnectivityManager and make public? 3585 private static final String CONNECTED_TO_PROVISIONING_NETWORK_ACTION = 3586 "com.android.server.connectivityservice.CONNECTED_TO_PROVISIONING_NETWORK_ACTION"; 3587 3588 private BroadcastReceiver mProvisioningReceiver = new BroadcastReceiver() { 3589 @Override 3590 public void onReceive(Context context, Intent intent) { 3591 if (intent.getAction().equals(CONNECTED_TO_PROVISIONING_NETWORK_ACTION)) { 3592 handleMobileProvisioningAction(intent.getStringExtra("EXTRA_URL")); 3593 } 3594 } 3595 }; 3596 3597 private void handleMobileProvisioningAction(String url) { 3598 // Mark notification as not visible 3599 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3600 3601 // Check airplane mode 3602 boolean isAirplaneModeOn = Settings.System.getInt(mContext.getContentResolver(), 3603 Settings.Global.AIRPLANE_MODE_ON, 0) == 1; 3604 // If provisioning network and not in airplane mode handle as a special case, 3605 // otherwise launch browser with the intent directly. 3606 if (mIsProvisioningNetwork.get() && !isAirplaneModeOn) { 3607 if (DBG) log("handleMobileProvisioningAction: on prov network enable then launch"); 3608 mIsProvisioningNetwork.set(false); 3609// mIsStartingProvisioning.set(true); 3610// MobileDataStateTracker mdst = (MobileDataStateTracker) 3611// mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3612 // Radio was disabled on CMP_RESULT_CODE_PROVISIONING_NETWORK, enable it here 3613// mdst.setRadio(true); 3614// mdst.setEnableFailFastMobileData(DctConstants.ENABLED); 3615// mdst.enableMobileProvisioning(url); 3616 } else { 3617 if (DBG) log("handleMobileProvisioningAction: not prov network"); 3618 mIsProvisioningNetwork.set(false); 3619 // Check for apps that can handle provisioning first 3620 Intent provisioningIntent = new Intent(TelephonyIntents.ACTION_CARRIER_SETUP); 3621 List<String> carrierPackages = 3622 mTelephonyManager.getCarrierPackageNamesForIntent(provisioningIntent); 3623 if (carrierPackages != null && !carrierPackages.isEmpty()) { 3624 if (carrierPackages.size() != 1) { 3625 if (DBG) log("Multiple matching carrier apps found, launching the first."); 3626 } 3627 provisioningIntent.setPackage(carrierPackages.get(0)); 3628 provisioningIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3629 Intent.FLAG_ACTIVITY_NEW_TASK); 3630 mContext.startActivity(provisioningIntent); 3631 } else { 3632 // If no apps exist, use standard URL ACTION_VIEW method 3633 Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, 3634 Intent.CATEGORY_APP_BROWSER); 3635 newIntent.setData(Uri.parse(url)); 3636 newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3637 Intent.FLAG_ACTIVITY_NEW_TASK); 3638 try { 3639 mContext.startActivity(newIntent); 3640 } catch (ActivityNotFoundException e) { 3641 loge("handleMobileProvisioningAction: startActivity failed" + e); 3642 } 3643 } 3644 } 3645 } 3646 3647 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 3648 private volatile boolean mIsNotificationVisible = false; 3649 3650 private void setProvNotificationVisible(boolean visible, int networkType, String extraInfo, 3651 String url) { 3652 if (DBG) { 3653 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 3654 + " extraInfo=" + extraInfo + " url=" + url); 3655 } 3656 Intent intent = null; 3657 PendingIntent pendingIntent = null; 3658 if (visible) { 3659 switch (networkType) { 3660 case ConnectivityManager.TYPE_WIFI: 3661 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3662 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3663 Intent.FLAG_ACTIVITY_NEW_TASK); 3664 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3665 break; 3666 case ConnectivityManager.TYPE_MOBILE: 3667 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3668 intent = new Intent(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 3669 intent.putExtra("EXTRA_URL", url); 3670 intent.setFlags(0); 3671 pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 3672 break; 3673 default: 3674 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3675 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3676 Intent.FLAG_ACTIVITY_NEW_TASK); 3677 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3678 break; 3679 } 3680 } 3681 // Concatenate the range of types onto the range of NetIDs. 3682 int id = MAX_NET_ID + 1 + (networkType - ConnectivityManager.TYPE_NONE); 3683 setProvNotificationVisibleIntent(visible, id, networkType, extraInfo, pendingIntent); 3684 } 3685 3686 /** 3687 * Show or hide network provisioning notificaitons. 3688 * 3689 * @param id an identifier that uniquely identifies this notification. This must match 3690 * between show and hide calls. We use the NetID value but for legacy callers 3691 * we concatenate the range of types with the range of NetIDs. 3692 */ 3693 private void setProvNotificationVisibleIntent(boolean visible, int id, int networkType, 3694 String extraInfo, PendingIntent intent) { 3695 if (DBG) { 3696 log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + 3697 networkType + " extraInfo=" + extraInfo); 3698 } 3699 3700 Resources r = Resources.getSystem(); 3701 NotificationManager notificationManager = (NotificationManager) mContext 3702 .getSystemService(Context.NOTIFICATION_SERVICE); 3703 3704 if (visible) { 3705 CharSequence title; 3706 CharSequence details; 3707 int icon; 3708 Notification notification = new Notification(); 3709 switch (networkType) { 3710 case ConnectivityManager.TYPE_WIFI: 3711 title = r.getString(R.string.wifi_available_sign_in, 0); 3712 details = r.getString(R.string.network_available_sign_in_detailed, 3713 extraInfo); 3714 icon = R.drawable.stat_notify_wifi_in_range; 3715 break; 3716 case ConnectivityManager.TYPE_MOBILE: 3717 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3718 title = r.getString(R.string.network_available_sign_in, 0); 3719 // TODO: Change this to pull from NetworkInfo once a printable 3720 // name has been added to it 3721 details = mTelephonyManager.getNetworkOperatorName(); 3722 icon = R.drawable.stat_notify_rssi_in_range; 3723 break; 3724 default: 3725 title = r.getString(R.string.network_available_sign_in, 0); 3726 details = r.getString(R.string.network_available_sign_in_detailed, 3727 extraInfo); 3728 icon = R.drawable.stat_notify_rssi_in_range; 3729 break; 3730 } 3731 3732 notification.when = 0; 3733 notification.icon = icon; 3734 notification.flags = Notification.FLAG_AUTO_CANCEL; 3735 notification.tickerText = title; 3736 notification.color = mContext.getResources().getColor( 3737 com.android.internal.R.color.system_notification_accent_color); 3738 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 3739 notification.contentIntent = intent; 3740 3741 try { 3742 notificationManager.notify(NOTIFICATION_ID, id, notification); 3743 } catch (NullPointerException npe) { 3744 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 3745 npe.printStackTrace(); 3746 } 3747 } else { 3748 try { 3749 notificationManager.cancel(NOTIFICATION_ID, id); 3750 } catch (NullPointerException npe) { 3751 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 3752 npe.printStackTrace(); 3753 } 3754 } 3755 mIsNotificationVisible = visible; 3756 } 3757 3758 /** Location to an updatable file listing carrier provisioning urls. 3759 * An example: 3760 * 3761 * <?xml version="1.0" encoding="utf-8"?> 3762 * <provisioningUrls> 3763 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 3764 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 3765 * </provisioningUrls> 3766 */ 3767 private static final String PROVISIONING_URL_PATH = 3768 "/data/misc/radio/provisioning_urls.xml"; 3769 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 3770 3771 /** XML tag for root element. */ 3772 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 3773 /** XML tag for individual url */ 3774 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 3775 /** XML tag for redirected url */ 3776 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 3777 /** XML attribute for mcc */ 3778 private static final String ATTR_MCC = "mcc"; 3779 /** XML attribute for mnc */ 3780 private static final String ATTR_MNC = "mnc"; 3781 3782 private static final int REDIRECTED_PROVISIONING = 1; 3783 private static final int PROVISIONING = 2; 3784 3785 private String getProvisioningUrlBaseFromFile(int type) { 3786 FileReader fileReader = null; 3787 XmlPullParser parser = null; 3788 Configuration config = mContext.getResources().getConfiguration(); 3789 String tagType; 3790 3791 switch (type) { 3792 case PROVISIONING: 3793 tagType = TAG_PROVISIONING_URL; 3794 break; 3795 case REDIRECTED_PROVISIONING: 3796 tagType = TAG_REDIRECTED_URL; 3797 break; 3798 default: 3799 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 3800 type); 3801 } 3802 3803 try { 3804 fileReader = new FileReader(mProvisioningUrlFile); 3805 parser = Xml.newPullParser(); 3806 parser.setInput(fileReader); 3807 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 3808 3809 while (true) { 3810 XmlUtils.nextElement(parser); 3811 3812 String element = parser.getName(); 3813 if (element == null) break; 3814 3815 if (element.equals(tagType)) { 3816 String mcc = parser.getAttributeValue(null, ATTR_MCC); 3817 try { 3818 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 3819 String mnc = parser.getAttributeValue(null, ATTR_MNC); 3820 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 3821 parser.next(); 3822 if (parser.getEventType() == XmlPullParser.TEXT) { 3823 return parser.getText(); 3824 } 3825 } 3826 } 3827 } catch (NumberFormatException e) { 3828 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 3829 } 3830 } 3831 } 3832 return null; 3833 } catch (FileNotFoundException e) { 3834 loge("Carrier Provisioning Urls file not found"); 3835 } catch (XmlPullParserException e) { 3836 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 3837 } catch (IOException e) { 3838 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 3839 } finally { 3840 if (fileReader != null) { 3841 try { 3842 fileReader.close(); 3843 } catch (IOException e) {} 3844 } 3845 } 3846 return null; 3847 } 3848 3849 @Override 3850 public String getMobileRedirectedProvisioningUrl() { 3851 enforceConnectivityInternalPermission(); 3852 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 3853 if (TextUtils.isEmpty(url)) { 3854 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 3855 } 3856 return url; 3857 } 3858 3859 @Override 3860 public String getMobileProvisioningUrl() { 3861 enforceConnectivityInternalPermission(); 3862 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 3863 if (TextUtils.isEmpty(url)) { 3864 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 3865 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 3866 } else { 3867 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 3868 } 3869 // populate the iccid, imei and phone number in the provisioning url. 3870 if (!TextUtils.isEmpty(url)) { 3871 String phoneNumber = mTelephonyManager.getLine1Number(); 3872 if (TextUtils.isEmpty(phoneNumber)) { 3873 phoneNumber = "0000000000"; 3874 } 3875 url = String.format(url, 3876 mTelephonyManager.getSimSerialNumber() /* ICCID */, 3877 mTelephonyManager.getDeviceId() /* IMEI */, 3878 phoneNumber /* Phone numer */); 3879 } 3880 3881 return url; 3882 } 3883 3884 @Override 3885 public void setProvisioningNotificationVisible(boolean visible, int networkType, 3886 String extraInfo, String url) { 3887 enforceConnectivityInternalPermission(); 3888 setProvNotificationVisible(visible, networkType, extraInfo, url); 3889 } 3890 3891 @Override 3892 public void setAirplaneMode(boolean enable) { 3893 enforceConnectivityInternalPermission(); 3894 final long ident = Binder.clearCallingIdentity(); 3895 try { 3896 final ContentResolver cr = mContext.getContentResolver(); 3897 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 3898 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 3899 intent.putExtra("state", enable); 3900 mContext.sendBroadcast(intent); 3901 } finally { 3902 Binder.restoreCallingIdentity(ident); 3903 } 3904 } 3905 3906 private void onUserStart(int userId) { 3907 synchronized(mVpns) { 3908 Vpn userVpn = mVpns.get(userId); 3909 if (userVpn != null) { 3910 loge("Starting user already has a VPN"); 3911 return; 3912 } 3913 userVpn = new Vpn(mHandler.getLooper(), mContext, mNetd, this, userId); 3914 mVpns.put(userId, userVpn); 3915 } 3916 } 3917 3918 private void onUserStop(int userId) { 3919 synchronized(mVpns) { 3920 Vpn userVpn = mVpns.get(userId); 3921 if (userVpn == null) { 3922 loge("Stopping user has no VPN"); 3923 return; 3924 } 3925 mVpns.delete(userId); 3926 } 3927 } 3928 3929 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 3930 @Override 3931 public void onReceive(Context context, Intent intent) { 3932 final String action = intent.getAction(); 3933 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3934 if (userId == UserHandle.USER_NULL) return; 3935 3936 if (Intent.ACTION_USER_STARTING.equals(action)) { 3937 onUserStart(userId); 3938 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 3939 onUserStop(userId); 3940 } 3941 } 3942 }; 3943 3944 @Override 3945 public LinkQualityInfo getLinkQualityInfo(int networkType) { 3946 enforceAccessPermission(); 3947 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 3948 return mNetTrackers[networkType].getLinkQualityInfo(); 3949 } else { 3950 return null; 3951 } 3952 } 3953 3954 @Override 3955 public LinkQualityInfo getActiveLinkQualityInfo() { 3956 enforceAccessPermission(); 3957 if (isNetworkTypeValid(mActiveDefaultNetwork) && 3958 mNetTrackers[mActiveDefaultNetwork] != null) { 3959 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 3960 } else { 3961 return null; 3962 } 3963 } 3964 3965 @Override 3966 public LinkQualityInfo[] getAllLinkQualityInfo() { 3967 enforceAccessPermission(); 3968 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 3969 for (NetworkStateTracker tracker : mNetTrackers) { 3970 if (tracker != null) { 3971 LinkQualityInfo li = tracker.getLinkQualityInfo(); 3972 if (li != null) { 3973 result.add(li); 3974 } 3975 } 3976 } 3977 3978 return result.toArray(new LinkQualityInfo[result.size()]); 3979 } 3980 3981 /* Infrastructure for network sampling */ 3982 3983 private void handleNetworkSamplingTimeout() { 3984 3985 if (SAMPLE_DBG) log("Sampling interval elapsed, updating statistics .."); 3986 3987 // initialize list of interfaces .. 3988 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 3989 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 3990 for (NetworkStateTracker tracker : mNetTrackers) { 3991 if (tracker != null) { 3992 String ifaceName = tracker.getNetworkInterfaceName(); 3993 if (ifaceName != null) { 3994 mapIfaceToSample.put(ifaceName, null); 3995 } 3996 } 3997 } 3998 3999 // Read samples for all interfaces 4000 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 4001 4002 // process samples for all networks 4003 for (NetworkStateTracker tracker : mNetTrackers) { 4004 if (tracker != null) { 4005 String ifaceName = tracker.getNetworkInterfaceName(); 4006 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 4007 if (ss != null) { 4008 // end the previous sampling cycle 4009 tracker.stopSampling(ss); 4010 // start a new sampling cycle .. 4011 tracker.startSampling(ss); 4012 } 4013 } 4014 } 4015 4016 if (SAMPLE_DBG) log("Done."); 4017 4018 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 4019 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 4020 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 4021 4022 if (SAMPLE_DBG) { 4023 log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 4024 } 4025 4026 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 4027 } 4028 4029 /** 4030 * Sets a network sampling alarm. 4031 */ 4032 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 4033 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 4034 int alarmType; 4035 if (Resources.getSystem().getBoolean( 4036 R.bool.config_networkSamplingWakesDevice)) { 4037 alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP; 4038 } else { 4039 alarmType = AlarmManager.ELAPSED_REALTIME; 4040 } 4041 mAlarmManager.set(alarmType, wakeupTime, intent); 4042 } 4043 4044 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 4045 new HashMap<Messenger, NetworkFactoryInfo>(); 4046 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 4047 new HashMap<NetworkRequest, NetworkRequestInfo>(); 4048 4049 private static class NetworkFactoryInfo { 4050 public final String name; 4051 public final Messenger messenger; 4052 public final AsyncChannel asyncChannel; 4053 4054 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 4055 this.name = name; 4056 this.messenger = messenger; 4057 this.asyncChannel = asyncChannel; 4058 } 4059 } 4060 4061 /** 4062 * Tracks info about the requester. 4063 * Also used to notice when the calling process dies so we can self-expire 4064 */ 4065 private class NetworkRequestInfo implements IBinder.DeathRecipient { 4066 static final boolean REQUEST = true; 4067 static final boolean LISTEN = false; 4068 4069 final NetworkRequest request; 4070 IBinder mBinder; 4071 final int mPid; 4072 final int mUid; 4073 final Messenger messenger; 4074 final boolean isRequest; 4075 4076 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 4077 super(); 4078 messenger = m; 4079 request = r; 4080 mBinder = binder; 4081 mPid = getCallingPid(); 4082 mUid = getCallingUid(); 4083 this.isRequest = isRequest; 4084 4085 try { 4086 mBinder.linkToDeath(this, 0); 4087 } catch (RemoteException e) { 4088 binderDied(); 4089 } 4090 } 4091 4092 void unlinkDeathRecipient() { 4093 mBinder.unlinkToDeath(this, 0); 4094 } 4095 4096 public void binderDied() { 4097 log("ConnectivityService NetworkRequestInfo binderDied(" + 4098 request + ", " + mBinder + ")"); 4099 releaseNetworkRequest(request); 4100 } 4101 4102 public String toString() { 4103 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 4104 mPid + " for " + request; 4105 } 4106 } 4107 4108 @Override 4109 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 4110 Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { 4111 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 4112 == false) { 4113 enforceConnectivityInternalPermission(); 4114 } else { 4115 enforceChangePermission(); 4116 } 4117 4118 networkCapabilities = new NetworkCapabilities(networkCapabilities); 4119 4120 // if UID is restricted, don't allow them to bring up metered APNs 4121 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED) 4122 == false) { 4123 final int uidRules; 4124 final int uid = Binder.getCallingUid(); 4125 synchronized(mRulesLock) { 4126 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 4127 } 4128 if ((uidRules & RULE_REJECT_METERED) != 0) { 4129 // we could silently fail or we can filter the available nets to only give 4130 // them those they have access to. Chose the more useful 4131 networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 4132 } 4133 } 4134 4135 if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { 4136 throw new IllegalArgumentException("Bad timeout specified"); 4137 } 4138 NetworkRequest networkRequest = new NetworkRequest(networkCapabilities, legacyType, 4139 nextNetworkRequestId()); 4140 if (DBG) log("requestNetwork for " + networkRequest); 4141 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4142 NetworkRequestInfo.REQUEST); 4143 4144 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 4145 if (timeoutMs > 0) { 4146 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 4147 nri), timeoutMs); 4148 } 4149 return networkRequest; 4150 } 4151 4152 @Override 4153 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 4154 PendingIntent operation) { 4155 // TODO 4156 return null; 4157 } 4158 4159 @Override 4160 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 4161 Messenger messenger, IBinder binder) { 4162 enforceAccessPermission(); 4163 4164 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 4165 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 4166 if (DBG) log("listenForNetwork for " + networkRequest); 4167 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4168 NetworkRequestInfo.LISTEN); 4169 4170 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 4171 return networkRequest; 4172 } 4173 4174 @Override 4175 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 4176 PendingIntent operation) { 4177 } 4178 4179 @Override 4180 public void releaseNetworkRequest(NetworkRequest networkRequest) { 4181 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), 4182 0, networkRequest)); 4183 } 4184 4185 @Override 4186 public void registerNetworkFactory(Messenger messenger, String name) { 4187 enforceConnectivityInternalPermission(); 4188 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 4189 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 4190 } 4191 4192 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 4193 if (DBG) log("Got NetworkFactory Messenger for " + nfi.name); 4194 mNetworkFactoryInfos.put(nfi.messenger, nfi); 4195 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 4196 } 4197 4198 @Override 4199 public void unregisterNetworkFactory(Messenger messenger) { 4200 enforceConnectivityInternalPermission(); 4201 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 4202 } 4203 4204 private void handleUnregisterNetworkFactory(Messenger messenger) { 4205 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 4206 if (nfi == null) { 4207 loge("Failed to find Messenger in unregisterNetworkFactory"); 4208 return; 4209 } 4210 if (DBG) log("unregisterNetworkFactory for " + nfi.name); 4211 } 4212 4213 /** 4214 * NetworkAgentInfo supporting a request by requestId. 4215 * These have already been vetted (their Capabilities satisfy the request) 4216 * and the are the highest scored network available. 4217 * the are keyed off the Requests requestId. 4218 */ 4219 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 4220 new SparseArray<NetworkAgentInfo>(); 4221 4222 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 4223 new SparseArray<NetworkAgentInfo>(); 4224 4225 // NetworkAgentInfo keyed off its connecting messenger 4226 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 4227 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 4228 new HashMap<Messenger, NetworkAgentInfo>(); 4229 4230 private final NetworkRequest mDefaultRequest; 4231 4232 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 4233 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 4234 } 4235 4236 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 4237 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 4238 int currentScore, NetworkMisc networkMisc) { 4239 enforceConnectivityInternalPermission(); 4240 4241 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), 4242 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 4243 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler, 4244 networkMisc); 4245 synchronized (this) { 4246 nai.networkMonitor.systemReady = mSystemReady; 4247 } 4248 if (DBG) log("registerNetworkAgent " + nai); 4249 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 4250 } 4251 4252 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 4253 if (VDBG) log("Got NetworkAgent Messenger"); 4254 mNetworkAgentInfos.put(na.messenger, na); 4255 assignNextNetId(na); 4256 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 4257 NetworkInfo networkInfo = na.networkInfo; 4258 na.networkInfo = null; 4259 updateNetworkInfo(na, networkInfo); 4260 } 4261 4262 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 4263 LinkProperties newLp = networkAgent.linkProperties; 4264 int netId = networkAgent.network.netId; 4265 4266 updateInterfaces(newLp, oldLp, netId); 4267 updateMtu(newLp, oldLp); 4268 updateTcpBufferSizes(networkAgent); 4269 // TODO - figure out what to do for clat 4270// for (LinkProperties lp : newLp.getStackedLinks()) { 4271// updateMtu(lp, null); 4272// } 4273 final boolean flushDns = updateRoutes(newLp, oldLp, netId); 4274 updateDnses(newLp, oldLp, netId, flushDns); 4275 updateClat(newLp, oldLp, networkAgent); 4276 if (isDefaultNetwork(networkAgent)) handleApplyDefaultProxy(newLp.getHttpProxy()); 4277 } 4278 4279 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { 4280 // Update 464xlat state. 4281 if (mClat.requiresClat(na)) { 4282 4283 // If the connection was previously using clat, but is not using it now, stop the clat 4284 // daemon. Normally, this happens automatically when the connection disconnects, but if 4285 // the disconnect is not reported, or if the connection's LinkProperties changed for 4286 // some other reason (e.g., handoff changes the IP addresses on the link), it would 4287 // still be running. If it's not running, then stopping it is a no-op. 4288 if (Nat464Xlat.isRunningClat(oldLp) && !Nat464Xlat.isRunningClat(newLp)) { 4289 mClat.stopClat(); 4290 } 4291 // If the link requires clat to be running, then start the daemon now. 4292 if (na.networkInfo.isConnected()) { 4293 mClat.startClat(na); 4294 } else { 4295 mClat.stopClat(); 4296 } 4297 } 4298 } 4299 4300 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 4301 CompareResult<String> interfaceDiff = new CompareResult<String>(); 4302 if (oldLp != null) { 4303 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 4304 } else if (newLp != null) { 4305 interfaceDiff.added = newLp.getAllInterfaceNames(); 4306 } 4307 for (String iface : interfaceDiff.added) { 4308 try { 4309 if (DBG) log("Adding iface " + iface + " to network " + netId); 4310 mNetd.addInterfaceToNetwork(iface, netId); 4311 } catch (Exception e) { 4312 loge("Exception adding interface: " + e); 4313 } 4314 } 4315 for (String iface : interfaceDiff.removed) { 4316 try { 4317 if (DBG) log("Removing iface " + iface + " from network " + netId); 4318 mNetd.removeInterfaceFromNetwork(iface, netId); 4319 } catch (Exception e) { 4320 loge("Exception removing interface: " + e); 4321 } 4322 } 4323 } 4324 4325 /** 4326 * Have netd update routes from oldLp to newLp. 4327 * @return true if routes changed between oldLp and newLp 4328 */ 4329 private boolean updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 4330 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 4331 if (oldLp != null) { 4332 routeDiff = oldLp.compareAllRoutes(newLp); 4333 } else if (newLp != null) { 4334 routeDiff.added = newLp.getAllRoutes(); 4335 } 4336 4337 // add routes before removing old in case it helps with continuous connectivity 4338 4339 // do this twice, adding non-nexthop routes first, then routes they are dependent on 4340 for (RouteInfo route : routeDiff.added) { 4341 if (route.hasGateway()) continue; 4342 if (DBG) log("Adding Route [" + route + "] to network " + netId); 4343 try { 4344 mNetd.addRoute(netId, route); 4345 } catch (Exception e) { 4346 if ((route.getDestination().getAddress() instanceof Inet4Address) || VDBG) { 4347 loge("Exception in addRoute for non-gateway: " + e); 4348 } 4349 } 4350 } 4351 for (RouteInfo route : routeDiff.added) { 4352 if (route.hasGateway() == false) continue; 4353 if (DBG) log("Adding Route [" + route + "] to network " + netId); 4354 try { 4355 mNetd.addRoute(netId, route); 4356 } catch (Exception e) { 4357 if ((route.getGateway() instanceof Inet4Address) || VDBG) { 4358 loge("Exception in addRoute for gateway: " + e); 4359 } 4360 } 4361 } 4362 4363 for (RouteInfo route : routeDiff.removed) { 4364 if (DBG) log("Removing Route [" + route + "] from network " + netId); 4365 try { 4366 mNetd.removeRoute(netId, route); 4367 } catch (Exception e) { 4368 loge("Exception in removeRoute: " + e); 4369 } 4370 } 4371 return !routeDiff.added.isEmpty() || !routeDiff.removed.isEmpty(); 4372 } 4373 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId, boolean flush) { 4374 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 4375 Collection<InetAddress> dnses = newLp.getDnsServers(); 4376 if (dnses.size() == 0 && mDefaultDns != null) { 4377 dnses = new ArrayList(); 4378 dnses.add(mDefaultDns); 4379 if (DBG) { 4380 loge("no dns provided for netId " + netId + ", so using defaults"); 4381 } 4382 } 4383 if (DBG) log("Setting Dns servers for network " + netId + " to " + dnses); 4384 try { 4385 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 4386 newLp.getDomains()); 4387 } catch (Exception e) { 4388 loge("Exception in setDnsServersForNetwork: " + e); 4389 } 4390 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 4391 if (defaultNai != null && defaultNai.network.netId == netId) { 4392 setDefaultDnsSystemProperties(dnses); 4393 } 4394 flushVmDnsCache(); 4395 } else if (flush) { 4396 try { 4397 mNetd.flushNetworkDnsCache(netId); 4398 } catch (Exception e) { 4399 loge("Exception in flushNetworkDnsCache: " + e); 4400 } 4401 flushVmDnsCache(); 4402 } 4403 } 4404 4405 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 4406 int last = 0; 4407 for (InetAddress dns : dnses) { 4408 ++last; 4409 String key = "net.dns" + last; 4410 String value = dns.getHostAddress(); 4411 SystemProperties.set(key, value); 4412 } 4413 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 4414 String key = "net.dns" + i; 4415 SystemProperties.set(key, ""); 4416 } 4417 mNumDnsEntries = last; 4418 } 4419 4420 4421 private void updateCapabilities(NetworkAgentInfo networkAgent, 4422 NetworkCapabilities networkCapabilities) { 4423 // TODO - what else here? Verify still satisfies everybody? 4424 // Check if satisfies somebody new? call callbacks? 4425 synchronized (networkAgent) { 4426 networkAgent.networkCapabilities = networkCapabilities; 4427 } 4428 } 4429 4430 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 4431 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 4432 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 4433 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 4434 networkRequest); 4435 } 4436 } 4437 4438 private void callCallbackForRequest(NetworkRequestInfo nri, 4439 NetworkAgentInfo networkAgent, int notificationType) { 4440 if (nri.messenger == null) return; // Default request has no msgr 4441 Object o; 4442 int a1 = 0; 4443 int a2 = 0; 4444 switch (notificationType) { 4445 case ConnectivityManager.CALLBACK_LOSING: 4446 a1 = 30 * 1000; // TODO - read this from NetworkMonitor 4447 // fall through 4448 case ConnectivityManager.CALLBACK_PRECHECK: 4449 case ConnectivityManager.CALLBACK_AVAILABLE: 4450 case ConnectivityManager.CALLBACK_LOST: 4451 case ConnectivityManager.CALLBACK_CAP_CHANGED: 4452 case ConnectivityManager.CALLBACK_IP_CHANGED: { 4453 o = new NetworkRequest(nri.request); 4454 a2 = networkAgent.network.netId; 4455 break; 4456 } 4457 case ConnectivityManager.CALLBACK_UNAVAIL: 4458 case ConnectivityManager.CALLBACK_RELEASED: { 4459 o = new NetworkRequest(nri.request); 4460 break; 4461 } 4462 default: { 4463 loge("Unknown notificationType " + notificationType); 4464 return; 4465 } 4466 } 4467 Message msg = Message.obtain(); 4468 msg.arg1 = a1; 4469 msg.arg2 = a2; 4470 msg.obj = o; 4471 msg.what = notificationType; 4472 try { 4473 if (VDBG) { 4474 log("sending notification " + notifyTypeToName(notificationType) + 4475 " for " + nri.request); 4476 } 4477 nri.messenger.send(msg); 4478 } catch (RemoteException e) { 4479 // may occur naturally in the race of binder death. 4480 loge("RemoteException caught trying to send a callback msg for " + nri.request); 4481 } 4482 } 4483 4484 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 4485 if (oldNetwork == null) { 4486 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 4487 return; 4488 } 4489 if (DBG) { 4490 log("handleLingerComplete for " + oldNetwork.name()); 4491 for (int i = 0; i < oldNetwork.networkRequests.size(); i++) { 4492 NetworkRequest nr = oldNetwork.networkRequests.valueAt(i); 4493 // Ignore listening requests. 4494 if (mNetworkRequests.get(nr).isRequest == false) continue; 4495 loge("Dead network still had at least " + nr); 4496 break; 4497 } 4498 } 4499 oldNetwork.asyncChannel.disconnect(); 4500 } 4501 4502 private void makeDefault(NetworkAgentInfo newNetwork) { 4503 if (DBG) log("Switching to new default network: " + newNetwork); 4504 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4505 setupDataActivityTracking(newNetwork); 4506 try { 4507 mNetd.setDefaultNetId(newNetwork.network.netId); 4508 } catch (Exception e) { 4509 loge("Exception setting default network :" + e); 4510 } 4511 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 4512 updateTcpBufferSizes(newNetwork); 4513 } 4514 4515 // Handles a network appearing or improving its score. 4516 // 4517 // - Evaluates all current NetworkRequests that can be 4518 // satisfied by newNetwork, and reassigns to newNetwork 4519 // any such requests for which newNetwork is the best. 4520 // 4521 // - Tears down any Networks that as a result are no longer 4522 // needed. A network is needed if it is the best network for 4523 // one or more NetworkRequests, or if it is a VPN. 4524 // 4525 // - Tears down newNetwork if it is validated but turns out to be 4526 // unneeded. Does not tear down newNetwork if it is 4527 // unvalidated, because future validation may improve 4528 // newNetwork's score enough that it is needed. 4529 // 4530 // NOTE: This function only adds NetworkRequests that "newNetwork" could satisfy, 4531 // it does not remove NetworkRequests that other Networks could better satisfy. 4532 // If you need to handle decreases in score, use {@link rematchAllNetworksAndRequests}. 4533 // This function should be used when possible instead of {@code rematchAllNetworksAndRequests} 4534 // as it performs better by a factor of the number of Networks. 4535 private void rematchNetworkAndRequests(NetworkAgentInfo newNetwork) { 4536 boolean keep = newNetwork.isVPN(); 4537 boolean isNewDefault = false; 4538 if (DBG) log("rematching " + newNetwork.name()); 4539 // Find and migrate to this Network any NetworkRequests for 4540 // which this network is now the best. 4541 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 4542 if (VDBG) log(" network has: " + newNetwork.networkCapabilities); 4543 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 4544 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 4545 if (newNetwork == currentNetwork) { 4546 if (DBG) log("Network " + newNetwork.name() + " was already satisfying" + 4547 " request " + nri.request.requestId + ". No change."); 4548 keep = true; 4549 continue; 4550 } 4551 4552 // check if it satisfies the NetworkCapabilities 4553 if (VDBG) log(" checking if request is satisfied: " + nri.request); 4554 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 4555 newNetwork.networkCapabilities)) { 4556 if (!nri.isRequest) { 4557 // This is not a request, it's a callback listener. 4558 // Add it to newNetwork regardless of score. 4559 newNetwork.addRequest(nri.request); 4560 continue; 4561 } 4562 4563 // next check if it's better than any current network we're using for 4564 // this request 4565 if (VDBG) { 4566 log("currentScore = " + 4567 (currentNetwork != null ? currentNetwork.getCurrentScore() : 0) + 4568 ", newScore = " + newNetwork.getCurrentScore()); 4569 } 4570 if (currentNetwork == null || 4571 currentNetwork.getCurrentScore() < newNetwork.getCurrentScore()) { 4572 if (currentNetwork != null) { 4573 if (DBG) log(" accepting network in place of " + currentNetwork.name()); 4574 currentNetwork.networkRequests.remove(nri.request.requestId); 4575 currentNetwork.networkLingered.add(nri.request); 4576 affectedNetworks.add(currentNetwork); 4577 } else { 4578 if (DBG) log(" accepting network in place of null"); 4579 } 4580 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 4581 newNetwork.addRequest(nri.request); 4582 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 4583 mLegacyTypeTracker.add(nri.request.legacyType, newNetwork); 4584 } 4585 keep = true; 4586 // Tell NetworkFactories about the new score, so they can stop 4587 // trying to connect if they know they cannot match it. 4588 // TODO - this could get expensive if we have alot of requests for this 4589 // network. Think about if there is a way to reduce this. Push 4590 // netid->request mapping to each factory? 4591 sendUpdatedScoreToFactories(nri.request, newNetwork.getCurrentScore()); 4592 if (mDefaultRequest.requestId == nri.request.requestId) { 4593 isNewDefault = true; 4594 // TODO: Remove following line. It's redundant with makeDefault call. 4595 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4596 if (newNetwork.linkProperties != null) { 4597 updateTcpBufferSizes(newNetwork); 4598 setDefaultDnsSystemProperties( 4599 newNetwork.linkProperties.getDnsServers()); 4600 } else { 4601 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 4602 } 4603 // Maintain the illusion: since the legacy API only 4604 // understands one network at a time, we must pretend 4605 // that the current default network disconnected before 4606 // the new one connected. 4607 if (currentNetwork != null) { 4608 mLegacyTypeTracker.remove(currentNetwork.networkInfo.getType(), 4609 currentNetwork); 4610 } 4611 mDefaultInetConditionPublished = newNetwork.validated ? 100 : 0; 4612 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 4613 } 4614 } 4615 } 4616 } 4617 // Linger any networks that are no longer needed. 4618 for (NetworkAgentInfo nai : affectedNetworks) { 4619 boolean teardown = !nai.isVPN(); 4620 for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { 4621 NetworkRequest nr = nai.networkRequests.valueAt(i); 4622 try { 4623 if (mNetworkRequests.get(nr).isRequest) { 4624 teardown = false; 4625 } 4626 } catch (Exception e) { 4627 loge("Request " + nr + " not found in mNetworkRequests."); 4628 loge(" it came from request list of " + nai.name()); 4629 } 4630 } 4631 if (teardown) { 4632 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 4633 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 4634 } else { 4635 // not going to linger, so kill the list of linger networks.. only 4636 // notify them of linger if it happens as the result of gaining another, 4637 // but if they transition and old network stays up, don't tell them of linger 4638 // or very delayed loss 4639 nai.networkLingered.clear(); 4640 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 4641 } 4642 } 4643 if (keep) { 4644 if (isNewDefault) { 4645 // Notify system services that this network is up. 4646 makeDefault(newNetwork); 4647 synchronized (ConnectivityService.this) { 4648 // have a new default network, release the transition wakelock in 4649 // a second if it's held. The second pause is to allow apps 4650 // to reconnect over the new network 4651 if (mNetTransitionWakeLock.isHeld()) { 4652 mHandler.sendMessageDelayed(mHandler.obtainMessage( 4653 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 4654 mNetTransitionWakeLockSerialNumber, 0), 4655 1000); 4656 } 4657 } 4658 } 4659 4660 // Notify battery stats service about this network, both the normal 4661 // interface and any stacked links. 4662 // TODO: Avoid redoing this; this must only be done once when a network comes online. 4663 try { 4664 final IBatteryStats bs = BatteryStatsService.getService(); 4665 final int type = newNetwork.networkInfo.getType(); 4666 4667 final String baseIface = newNetwork.linkProperties.getInterfaceName(); 4668 bs.noteNetworkInterfaceType(baseIface, type); 4669 for (LinkProperties stacked : newNetwork.linkProperties.getStackedLinks()) { 4670 final String stackedIface = stacked.getInterfaceName(); 4671 bs.noteNetworkInterfaceType(stackedIface, type); 4672 NetworkStatsFactory.noteStackedIface(stackedIface, baseIface); 4673 } 4674 } catch (RemoteException ignored) { 4675 } 4676 4677 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 4678 } else if (newNetwork.validated) { 4679 // Only tear down validated networks here. Leave unvalidated to either become 4680 // validated (and get evaluated against peers, one losing here) or 4681 // NetworkMonitor reports a bad network and we tear it down then. 4682 // TODO: Could teardown unvalidated networks when their NetworkCapabilities 4683 // satisfy no NetworkRequests. 4684 if (DBG && newNetwork.networkRequests.size() != 0) { 4685 loge("tearing down network with live requests:"); 4686 for (int i=0; i < newNetwork.networkRequests.size(); i++) { 4687 loge(" " + newNetwork.networkRequests.valueAt(i)); 4688 } 4689 } 4690 if (DBG) log("Validated network turns out to be unwanted. Tear it down."); 4691 newNetwork.asyncChannel.disconnect(); 4692 } 4693 } 4694 4695 // Attempt to rematch all Networks with NetworkRequests. This may result in Networks 4696 // being disconnected. 4697 // If only one Network's score or capabilities have been modified since the last time 4698 // this function was called, pass this Network in via the "changed" arugment, otherwise 4699 // pass null. 4700 // If only one Network has been changed but its NetworkCapabilities have not changed, 4701 // pass in the Network's score (from getCurrentScore()) prior to the change via 4702 // "oldScore", otherwise pass changed.getCurrentScore() or 0 if "changed" is null. 4703 private void rematchAllNetworksAndRequests(NetworkAgentInfo changed, int oldScore) { 4704 // TODO: This may get slow. The "changed" parameter is provided for future optimization 4705 // to avoid the slowness. It is not simply enough to process just "changed", for 4706 // example in the case where "changed"'s score decreases and another network should begin 4707 // satifying a NetworkRequest that "changed" currently satisfies. 4708 4709 // Optimization: Only reprocess "changed" if its score improved. This is safe because it 4710 // can only add more NetworkRequests satisfied by "changed", and this is exactly what 4711 // rematchNetworkAndRequests() handles. 4712 if (changed != null && oldScore < changed.getCurrentScore()) { 4713 rematchNetworkAndRequests(changed); 4714 } else { 4715 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 4716 rematchNetworkAndRequests(nai); 4717 } 4718 } 4719 } 4720 4721 private void updateInetCondition(NetworkAgentInfo nai, boolean valid) { 4722 // Don't bother updating until we've graduated to validated at least once. 4723 if (!nai.validated) return; 4724 // For now only update icons for default connection. 4725 // TODO: Update WiFi and cellular icons separately. b/17237507 4726 if (!isDefaultNetwork(nai)) return; 4727 4728 int newInetCondition = valid ? 100 : 0; 4729 // Don't repeat publish. 4730 if (newInetCondition == mDefaultInetConditionPublished) return; 4731 4732 mDefaultInetConditionPublished = newInetCondition; 4733 sendInetConditionBroadcast(nai.networkInfo); 4734 } 4735 4736 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 4737 NetworkInfo.State state = newInfo.getState(); 4738 NetworkInfo oldInfo = null; 4739 synchronized (networkAgent) { 4740 oldInfo = networkAgent.networkInfo; 4741 networkAgent.networkInfo = newInfo; 4742 } 4743 if (networkAgent.isVPN() && mLockdownTracker != null) { 4744 mLockdownTracker.onVpnStateChanged(newInfo); 4745 } 4746 4747 if (oldInfo != null && oldInfo.getState() == state) { 4748 if (VDBG) log("ignoring duplicate network state non-change"); 4749 return; 4750 } 4751 if (DBG) { 4752 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 4753 (oldInfo == null ? "null" : oldInfo.getState()) + 4754 " to " + state); 4755 } 4756 4757 if (state == NetworkInfo.State.CONNECTED && !networkAgent.created) { 4758 try { 4759 // This should never fail. Specifying an already in use NetID will cause failure. 4760 if (networkAgent.isVPN()) { 4761 mNetd.createVirtualNetwork(networkAgent.network.netId, 4762 !networkAgent.linkProperties.getDnsServers().isEmpty(), 4763 (networkAgent.networkMisc == null || 4764 !networkAgent.networkMisc.allowBypass)); 4765 } else { 4766 mNetd.createPhysicalNetwork(networkAgent.network.netId); 4767 } 4768 } catch (Exception e) { 4769 loge("Error creating network " + networkAgent.network.netId + ": " 4770 + e.getMessage()); 4771 return; 4772 } 4773 networkAgent.created = true; 4774 updateLinkProperties(networkAgent, null); 4775 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 4776 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 4777 if (networkAgent.isVPN()) { 4778 // Temporarily disable the default proxy (not global). 4779 synchronized (mProxyLock) { 4780 if (!mDefaultProxyDisabled) { 4781 mDefaultProxyDisabled = true; 4782 if (mGlobalProxy == null && mDefaultProxy != null) { 4783 sendProxyBroadcast(null); 4784 } 4785 } 4786 } 4787 // TODO: support proxy per network. 4788 } 4789 // Consider network even though it is not yet validated. 4790 // TODO: All the if-statement conditions can be removed now that validation only confers 4791 // a score increase. 4792 if (mNetworkForRequestId.get(mDefaultRequest.requestId) == null && 4793 networkAgent.isVPN() == false && 4794 mDefaultRequest.networkCapabilities.satisfiedByNetworkCapabilities( 4795 networkAgent.networkCapabilities)) { 4796 rematchNetworkAndRequests(networkAgent); 4797 } 4798 } else if (state == NetworkInfo.State.DISCONNECTED || 4799 state == NetworkInfo.State.SUSPENDED) { 4800 networkAgent.asyncChannel.disconnect(); 4801 if (networkAgent.isVPN()) { 4802 synchronized (mProxyLock) { 4803 if (mDefaultProxyDisabled) { 4804 mDefaultProxyDisabled = false; 4805 if (mGlobalProxy == null && mDefaultProxy != null) { 4806 sendProxyBroadcast(mDefaultProxy); 4807 } 4808 } 4809 } 4810 } 4811 } 4812 } 4813 4814 private void updateNetworkScore(NetworkAgentInfo nai, int score) { 4815 if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); 4816 if (score < 0) { 4817 loge("updateNetworkScore for " + nai.name() + " got a negative score (" + score + 4818 "). Bumping score to min of 0"); 4819 score = 0; 4820 } 4821 4822 final int oldScore = nai.getCurrentScore(); 4823 nai.setCurrentScore(score); 4824 4825 if (nai.created) rematchAllNetworksAndRequests(nai, oldScore); 4826 4827 for (int i = 0; i < nai.networkRequests.size(); i++) { 4828 NetworkRequest nr = nai.networkRequests.valueAt(i); 4829 // Don't send listening requests to factories. b/17393458 4830 if (mNetworkRequests.get(nr).isRequest == false) continue; 4831 sendUpdatedScoreToFactories(nr, score); 4832 } 4833 } 4834 4835 // notify only this one new request of the current state 4836 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 4837 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 4838 // TODO - read state from monitor to decide what to send. 4839// if (nai.networkMonitor.isLingering()) { 4840// notifyType = NetworkCallbacks.LOSING; 4841// } else if (nai.networkMonitor.isEvaluating()) { 4842// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 4843// } 4844 callCallbackForRequest(nri, nai, notifyType); 4845 } 4846 4847 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 4848 // The NetworkInfo we actually send out has no bearing on the real 4849 // state of affairs. For example, if the default connection is mobile, 4850 // and a request for HIPRI has just gone away, we need to pretend that 4851 // HIPRI has just disconnected. So we need to set the type to HIPRI and 4852 // the state to DISCONNECTED, even though the network is of type MOBILE 4853 // and is still connected. 4854 NetworkInfo info = new NetworkInfo(nai.networkInfo); 4855 info.setType(type); 4856 if (connected) { 4857 info.setDetailedState(DetailedState.CONNECTED, null, info.getExtraInfo()); 4858 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 4859 } else { 4860 info.setDetailedState(DetailedState.DISCONNECTED, null, info.getExtraInfo()); 4861 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 4862 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 4863 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 4864 if (info.isFailover()) { 4865 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 4866 nai.networkInfo.setFailover(false); 4867 } 4868 if (info.getReason() != null) { 4869 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 4870 } 4871 if (info.getExtraInfo() != null) { 4872 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 4873 } 4874 NetworkAgentInfo newDefaultAgent = null; 4875 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 4876 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 4877 if (newDefaultAgent != null) { 4878 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 4879 newDefaultAgent.networkInfo); 4880 } else { 4881 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 4882 } 4883 } 4884 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 4885 mDefaultInetConditionPublished); 4886 final Intent immediateIntent = new Intent(intent); 4887 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 4888 sendStickyBroadcast(immediateIntent); 4889 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 4890 if (newDefaultAgent != null) { 4891 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 4892 getConnectivityChangeDelay()); 4893 } 4894 } 4895 } 4896 4897 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 4898 if (DBG) log("notifyType " + notifyTypeToName(notifyType) + " for " + networkAgent.name()); 4899 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 4900 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 4901 NetworkRequestInfo nri = mNetworkRequests.get(nr); 4902 if (VDBG) log(" sending notification for " + nr); 4903 callCallbackForRequest(nri, networkAgent, notifyType); 4904 } 4905 } 4906 4907 private String notifyTypeToName(int notifyType) { 4908 switch (notifyType) { 4909 case ConnectivityManager.CALLBACK_PRECHECK: return "PRECHECK"; 4910 case ConnectivityManager.CALLBACK_AVAILABLE: return "AVAILABLE"; 4911 case ConnectivityManager.CALLBACK_LOSING: return "LOSING"; 4912 case ConnectivityManager.CALLBACK_LOST: return "LOST"; 4913 case ConnectivityManager.CALLBACK_UNAVAIL: return "UNAVAILABLE"; 4914 case ConnectivityManager.CALLBACK_CAP_CHANGED: return "CAP_CHANGED"; 4915 case ConnectivityManager.CALLBACK_IP_CHANGED: return "IP_CHANGED"; 4916 case ConnectivityManager.CALLBACK_RELEASED: return "RELEASED"; 4917 } 4918 return "UNKNOWN"; 4919 } 4920 4921 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 4922 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4923 if (nai != null) { 4924 synchronized (nai) { 4925 return new LinkProperties(nai.linkProperties); 4926 } 4927 } 4928 return new LinkProperties(); 4929 } 4930 4931 private NetworkInfo getNetworkInfoForType(int networkType) { 4932 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 4933 return null; 4934 4935 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4936 if (nai != null) { 4937 NetworkInfo result = new NetworkInfo(nai.networkInfo); 4938 result.setType(networkType); 4939 return result; 4940 } else { 4941 NetworkInfo result = new NetworkInfo( 4942 networkType, 0, ConnectivityManager.getNetworkTypeName(networkType), ""); 4943 result.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, null, null); 4944 return result; 4945 } 4946 } 4947 4948 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 4949 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4950 if (nai != null) { 4951 synchronized (nai) { 4952 return new NetworkCapabilities(nai.networkCapabilities); 4953 } 4954 } 4955 return new NetworkCapabilities(); 4956 } 4957 4958 @Override 4959 public boolean addVpnAddress(String address, int prefixLength) { 4960 throwIfLockdownEnabled(); 4961 int user = UserHandle.getUserId(Binder.getCallingUid()); 4962 synchronized (mVpns) { 4963 return mVpns.get(user).addAddress(address, prefixLength); 4964 } 4965 } 4966 4967 @Override 4968 public boolean removeVpnAddress(String address, int prefixLength) { 4969 throwIfLockdownEnabled(); 4970 int user = UserHandle.getUserId(Binder.getCallingUid()); 4971 synchronized (mVpns) { 4972 return mVpns.get(user).removeAddress(address, prefixLength); 4973 } 4974 } 4975} 4976