ConnectivityService.java revision fc0c6890c675494b15cd847b20c5a5ede491fc3c
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 = -1; 255 // 0 is full bad, 100 is full good 256 private int mDefaultInetConditionPublished = 0; 257 258 private Object mDnsLock = new Object(); 259 private int mNumDnsEntries; 260 261 private boolean mTestMode; 262 private static ConnectivityService sServiceInstance; 263 264 private INetworkManagementService mNetd; 265 private INetworkPolicyManager mPolicyManager; 266 267 private String mCurrentTcpBufferSizes; 268 269 private static final int ENABLED = 1; 270 private static final int DISABLED = 0; 271 272 /** 273 * used internally to change our mobile data enabled flag 274 */ 275 private static final int EVENT_CHANGE_MOBILE_DATA_ENABLED = 2; 276 277 /** 278 * used internally to clear a wakelock when transitioning 279 * from one net to another. Clear happens when we get a new 280 * network - EVENT_EXPIRE_NET_TRANSITION_WAKELOCK happens 281 * after a timeout if no network is found (typically 1 min). 282 */ 283 private static final int EVENT_CLEAR_NET_TRANSITION_WAKELOCK = 8; 284 285 /** 286 * used internally to reload global proxy settings 287 */ 288 private static final int EVENT_APPLY_GLOBAL_HTTP_PROXY = 9; 289 290 /** 291 * used internally to set external dependency met/unmet 292 * arg1 = ENABLED (met) or DISABLED (unmet) 293 * arg2 = NetworkType 294 */ 295 private static final int EVENT_SET_DEPENDENCY_MET = 10; 296 297 /** 298 * used internally to send a sticky broadcast delayed. 299 */ 300 private static final int EVENT_SEND_STICKY_BROADCAST_INTENT = 11; 301 302 /** 303 * Used internally to 304 * {@link NetworkStateTracker#setPolicyDataEnable(boolean)}. 305 */ 306 private static final int EVENT_SET_POLICY_DATA_ENABLE = 12; 307 308 /** 309 * Used internally to disable fail fast of mobile data 310 */ 311 private static final int EVENT_ENABLE_FAIL_FAST_MOBILE_DATA = 14; 312 313 /** 314 * used internally to indicate that data sampling interval is up 315 */ 316 private static final int EVENT_SAMPLE_INTERVAL_ELAPSED = 15; 317 318 /** 319 * PAC manager has received new port. 320 */ 321 private static final int EVENT_PROXY_HAS_CHANGED = 16; 322 323 /** 324 * used internally when registering NetworkFactories 325 * obj = NetworkFactoryInfo 326 */ 327 private static final int EVENT_REGISTER_NETWORK_FACTORY = 17; 328 329 /** 330 * used internally when registering NetworkAgents 331 * obj = Messenger 332 */ 333 private static final int EVENT_REGISTER_NETWORK_AGENT = 18; 334 335 /** 336 * used to add a network request 337 * includes a NetworkRequestInfo 338 */ 339 private static final int EVENT_REGISTER_NETWORK_REQUEST = 19; 340 341 /** 342 * indicates a timeout period is over - check if we had a network yet or not 343 * and if not, call the timeout calback (but leave the request live until they 344 * cancel it. 345 * includes a NetworkRequestInfo 346 */ 347 private static final int EVENT_TIMEOUT_NETWORK_REQUEST = 20; 348 349 /** 350 * used to add a network listener - no request 351 * includes a NetworkRequestInfo 352 */ 353 private static final int EVENT_REGISTER_NETWORK_LISTENER = 21; 354 355 /** 356 * used to remove a network request, either a listener or a real request 357 * arg1 = UID of caller 358 * obj = NetworkRequest 359 */ 360 private static final int EVENT_RELEASE_NETWORK_REQUEST = 22; 361 362 /** 363 * used internally when registering NetworkFactories 364 * obj = Messenger 365 */ 366 private static final int EVENT_UNREGISTER_NETWORK_FACTORY = 23; 367 368 /** 369 * used internally to expire a wakelock when transitioning 370 * from one net to another. Expire happens when we fail to find 371 * a new network (typically after 1 minute) - 372 * EVENT_CLEAR_NET_TRANSITION_WAKELOCK happens if we had found 373 * a replacement network. 374 */ 375 private static final int EVENT_EXPIRE_NET_TRANSITION_WAKELOCK = 24; 376 377 /** 378 * Used internally to indicate the system is ready. 379 */ 380 private static final int EVENT_SYSTEM_READY = 25; 381 382 383 /** Handler used for internal events. */ 384 final private InternalHandler mHandler; 385 /** Handler used for incoming {@link NetworkStateTracker} events. */ 386 final private NetworkStateTrackerHandler mTrackerHandler; 387 388 private boolean mSystemReady; 389 private Intent mInitialBroadcast; 390 391 private PowerManager.WakeLock mNetTransitionWakeLock; 392 private String mNetTransitionWakeLockCausedBy = ""; 393 private int mNetTransitionWakeLockSerialNumber; 394 private int mNetTransitionWakeLockTimeout; 395 396 private InetAddress mDefaultDns; 397 398 // used in DBG mode to track inet condition reports 399 private static final int INET_CONDITION_LOG_MAX_SIZE = 15; 400 private ArrayList mInetLog; 401 402 // track the current default http proxy - tell the world if we get a new one (real change) 403 private ProxyInfo mDefaultProxy = null; 404 private Object mProxyLock = new Object(); 405 private boolean mDefaultProxyDisabled = false; 406 407 // track the global proxy. 408 private ProxyInfo mGlobalProxy = null; 409 410 private PacManager mPacManager = null; 411 412 private SettingsObserver mSettingsObserver; 413 414 private UserManager mUserManager; 415 416 NetworkConfig[] mNetConfigs; 417 int mNetworksDefined; 418 419 // the set of network types that can only be enabled by system/sig apps 420 List mProtectedNetworks; 421 422 private DataConnectionStats mDataConnectionStats; 423 424 private AtomicInteger mEnableFailFastMobileDataTag = new AtomicInteger(0); 425 426 TelephonyManager mTelephonyManager; 427 428 // sequence number for Networks 429 private final static int MIN_NET_ID = 10; // some reserved marks 430 private final static int MAX_NET_ID = 65535; 431 private int mNextNetId = MIN_NET_ID; 432 433 // sequence number of NetworkRequests 434 private int mNextNetworkRequestId = 1; 435 436 /** 437 * Implements support for the legacy "one network per network type" model. 438 * 439 * We used to have a static array of NetworkStateTrackers, one for each 440 * network type, but that doesn't work any more now that we can have, 441 * for example, more that one wifi network. This class stores all the 442 * NetworkAgentInfo objects that support a given type, but the legacy 443 * API will only see the first one. 444 * 445 * It serves two main purposes: 446 * 447 * 1. Provide information about "the network for a given type" (since this 448 * API only supports one). 449 * 2. Send legacy connectivity change broadcasts. Broadcasts are sent if 450 * the first network for a given type changes, or if the default network 451 * changes. 452 */ 453 private class LegacyTypeTracker { 454 455 private static final boolean DBG = true; 456 private static final boolean VDBG = false; 457 private static final String TAG = "CSLegacyTypeTracker"; 458 459 /** 460 * Array of lists, one per legacy network type (e.g., TYPE_MOBILE_MMS). 461 * Each list holds references to all NetworkAgentInfos that are used to 462 * satisfy requests for that network type. 463 * 464 * This array is built out at startup such that an unsupported network 465 * doesn't get an ArrayList instance, making this a tristate: 466 * unsupported, supported but not active and active. 467 * 468 * The actual lists are populated when we scan the network types that 469 * are supported on this device. 470 */ 471 private ArrayList<NetworkAgentInfo> mTypeLists[]; 472 473 public LegacyTypeTracker() { 474 mTypeLists = (ArrayList<NetworkAgentInfo>[]) 475 new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE + 1]; 476 } 477 478 public void addSupportedType(int type) { 479 if (mTypeLists[type] != null) { 480 throw new IllegalStateException( 481 "legacy list for type " + type + "already initialized"); 482 } 483 mTypeLists[type] = new ArrayList<NetworkAgentInfo>(); 484 } 485 486 public boolean isTypeSupported(int type) { 487 return isNetworkTypeValid(type) && mTypeLists[type] != null; 488 } 489 490 public NetworkAgentInfo getNetworkForType(int type) { 491 if (isTypeSupported(type) && !mTypeLists[type].isEmpty()) { 492 return mTypeLists[type].get(0); 493 } else { 494 return null; 495 } 496 } 497 498 private void maybeLogBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 499 if (DBG) { 500 log("Sending " + (connected ? "connected" : "disconnected") + 501 " broadcast for type " + type + " " + nai.name() + 502 " isDefaultNetwork=" + isDefaultNetwork(nai)); 503 } 504 } 505 506 /** Adds the given network to the specified legacy type list. */ 507 public void add(int type, NetworkAgentInfo nai) { 508 if (!isTypeSupported(type)) { 509 return; // Invalid network type. 510 } 511 if (VDBG) log("Adding agent " + nai + " for legacy network type " + type); 512 513 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 514 if (list.contains(nai)) { 515 loge("Attempting to register duplicate agent for type " + type + ": " + nai); 516 return; 517 } 518 519 if (list.isEmpty() || isDefaultNetwork(nai)) { 520 maybeLogBroadcast(nai, true, type); 521 sendLegacyNetworkBroadcast(nai, true, type); 522 } 523 list.add(nai); 524 } 525 526 /** Removes the given network from the specified legacy type list. */ 527 public void remove(int type, NetworkAgentInfo nai) { 528 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 529 if (list == null || list.isEmpty()) { 530 return; 531 } 532 533 boolean wasFirstNetwork = list.get(0).equals(nai); 534 535 if (!list.remove(nai)) { 536 return; 537 } 538 539 if (wasFirstNetwork || isDefaultNetwork(nai)) { 540 maybeLogBroadcast(nai, false, type); 541 sendLegacyNetworkBroadcast(nai, false, type); 542 } 543 544 if (!list.isEmpty() && wasFirstNetwork) { 545 if (DBG) log("Other network available for type " + type + 546 ", sending connected broadcast"); 547 maybeLogBroadcast(list.get(0), false, type); 548 sendLegacyNetworkBroadcast(list.get(0), false, type); 549 } 550 } 551 552 /** Removes the given network from all legacy type lists. */ 553 public void remove(NetworkAgentInfo nai) { 554 if (VDBG) log("Removing agent " + nai); 555 for (int type = 0; type < mTypeLists.length; type++) { 556 remove(type, nai); 557 } 558 } 559 560 private String naiToString(NetworkAgentInfo nai) { 561 String name = (nai != null) ? nai.name() : "null"; 562 String state = (nai.networkInfo != null) ? 563 nai.networkInfo.getState() + "/" + nai.networkInfo.getDetailedState() : 564 "???/???"; 565 return name + " " + state; 566 } 567 568 public void dump(IndentingPrintWriter pw) { 569 for (int type = 0; type < mTypeLists.length; type++) { 570 if (mTypeLists[type] == null) continue; 571 pw.print(type + " "); 572 pw.increaseIndent(); 573 if (mTypeLists[type].size() == 0) pw.println("none"); 574 for (NetworkAgentInfo nai : mTypeLists[type]) { 575 pw.println(naiToString(nai)); 576 } 577 pw.decreaseIndent(); 578 } 579 } 580 581 // This class needs its own log method because it has a different TAG. 582 private void log(String s) { 583 Slog.d(TAG, s); 584 } 585 586 } 587 private LegacyTypeTracker mLegacyTypeTracker = new LegacyTypeTracker(); 588 589 public ConnectivityService(Context context, INetworkManagementService netManager, 590 INetworkStatsService statsService, INetworkPolicyManager policyManager) { 591 if (DBG) log("ConnectivityService starting up"); 592 593 NetworkCapabilities netCap = new NetworkCapabilities(); 594 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 595 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 596 mDefaultRequest = new NetworkRequest(netCap, TYPE_NONE, nextNetworkRequestId()); 597 NetworkRequestInfo nri = new NetworkRequestInfo(null, mDefaultRequest, new Binder(), 598 NetworkRequestInfo.REQUEST); 599 mNetworkRequests.put(mDefaultRequest, nri); 600 601 HandlerThread handlerThread = new HandlerThread("ConnectivityServiceThread"); 602 handlerThread.start(); 603 mHandler = new InternalHandler(handlerThread.getLooper()); 604 mTrackerHandler = new NetworkStateTrackerHandler(handlerThread.getLooper()); 605 606 // setup our unique device name 607 if (TextUtils.isEmpty(SystemProperties.get("net.hostname"))) { 608 String id = Settings.Secure.getString(context.getContentResolver(), 609 Settings.Secure.ANDROID_ID); 610 if (id != null && id.length() > 0) { 611 String name = new String("android-").concat(id); 612 SystemProperties.set("net.hostname", name); 613 } 614 } 615 616 // read our default dns server ip 617 String dns = Settings.Global.getString(context.getContentResolver(), 618 Settings.Global.DEFAULT_DNS_SERVER); 619 if (dns == null || dns.length() == 0) { 620 dns = context.getResources().getString( 621 com.android.internal.R.string.config_default_dns_server); 622 } 623 try { 624 mDefaultDns = NetworkUtils.numericToInetAddress(dns); 625 } catch (IllegalArgumentException e) { 626 loge("Error setting defaultDns using " + dns); 627 } 628 629 mContext = checkNotNull(context, "missing Context"); 630 mNetd = checkNotNull(netManager, "missing INetworkManagementService"); 631 mPolicyManager = checkNotNull(policyManager, "missing INetworkPolicyManager"); 632 mKeyStore = KeyStore.getInstance(); 633 mTelephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 634 635 try { 636 mPolicyManager.registerListener(mPolicyListener); 637 } catch (RemoteException e) { 638 // ouch, no rules updates means some processes may never get network 639 loge("unable to register INetworkPolicyListener" + e.toString()); 640 } 641 642 final PowerManager powerManager = (PowerManager) context.getSystemService( 643 Context.POWER_SERVICE); 644 mNetTransitionWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); 645 mNetTransitionWakeLockTimeout = mContext.getResources().getInteger( 646 com.android.internal.R.integer.config_networkTransitionTimeout); 647 648 mNetTrackers = new NetworkStateTracker[ 649 ConnectivityManager.MAX_NETWORK_TYPE+1]; 650 651 mNetConfigs = new NetworkConfig[ConnectivityManager.MAX_NETWORK_TYPE+1]; 652 653 // TODO: What is the "correct" way to do determine if this is a wifi only device? 654 boolean wifiOnly = SystemProperties.getBoolean("ro.radio.noril", false); 655 log("wifiOnly=" + wifiOnly); 656 String[] naStrings = context.getResources().getStringArray( 657 com.android.internal.R.array.networkAttributes); 658 for (String naString : naStrings) { 659 try { 660 NetworkConfig n = new NetworkConfig(naString); 661 if (VDBG) log("naString=" + naString + " config=" + n); 662 if (n.type > ConnectivityManager.MAX_NETWORK_TYPE) { 663 loge("Error in networkAttributes - ignoring attempt to define type " + 664 n.type); 665 continue; 666 } 667 if (wifiOnly && ConnectivityManager.isNetworkTypeMobile(n.type)) { 668 log("networkAttributes - ignoring mobile as this dev is wifiOnly " + 669 n.type); 670 continue; 671 } 672 if (mNetConfigs[n.type] != null) { 673 loge("Error in networkAttributes - ignoring attempt to redefine type " + 674 n.type); 675 continue; 676 } 677 mLegacyTypeTracker.addSupportedType(n.type); 678 679 mNetConfigs[n.type] = n; 680 mNetworksDefined++; 681 } catch(Exception e) { 682 // ignore it - leave the entry null 683 } 684 } 685 if (VDBG) log("mNetworksDefined=" + mNetworksDefined); 686 687 mProtectedNetworks = new ArrayList<Integer>(); 688 int[] protectedNetworks = context.getResources().getIntArray( 689 com.android.internal.R.array.config_protectedNetworks); 690 for (int p : protectedNetworks) { 691 if ((mNetConfigs[p] != null) && (mProtectedNetworks.contains(p) == false)) { 692 mProtectedNetworks.add(p); 693 } else { 694 if (DBG) loge("Ignoring protectedNetwork " + p); 695 } 696 } 697 698 mTestMode = SystemProperties.get("cm.test.mode").equals("true") 699 && SystemProperties.get("ro.build.type").equals("eng"); 700 701 mTethering = new Tethering(mContext, mNetd, statsService, mHandler.getLooper()); 702 703 //set up the listener for user state for creating user VPNs 704 IntentFilter intentFilter = new IntentFilter(); 705 intentFilter.addAction(Intent.ACTION_USER_STARTING); 706 intentFilter.addAction(Intent.ACTION_USER_STOPPING); 707 mContext.registerReceiverAsUser( 708 mUserIntentReceiver, UserHandle.ALL, intentFilter, null, null); 709 mClat = new Nat464Xlat(mContext, mNetd, this, mTrackerHandler); 710 711 try { 712 mNetd.registerObserver(mTethering); 713 mNetd.registerObserver(mDataActivityObserver); 714 mNetd.registerObserver(mClat); 715 } catch (RemoteException e) { 716 loge("Error registering observer :" + e); 717 } 718 719 if (DBG) { 720 mInetLog = new ArrayList(); 721 } 722 723 mSettingsObserver = new SettingsObserver(mHandler, EVENT_APPLY_GLOBAL_HTTP_PROXY); 724 mSettingsObserver.observe(mContext); 725 726 mDataConnectionStats = new DataConnectionStats(mContext); 727 mDataConnectionStats.startMonitoring(); 728 729 mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE); 730 731 IntentFilter filter = new IntentFilter(); 732 filter.addAction(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 733 mContext.registerReceiver( 734 new BroadcastReceiver() { 735 @Override 736 public void onReceive(Context context, Intent intent) { 737 String action = intent.getAction(); 738 if (action.equals(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED)) { 739 mHandler.sendMessage(mHandler.obtainMessage 740 (EVENT_SAMPLE_INTERVAL_ELAPSED)); 741 } 742 } 743 }, 744 new IntentFilter(filter)); 745 746 mPacManager = new PacManager(mContext, mHandler, EVENT_PROXY_HAS_CHANGED); 747 748 filter = new IntentFilter(); 749 filter.addAction(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 750 mContext.registerReceiver(mProvisioningReceiver, filter); 751 752 mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); 753 } 754 755 private synchronized int nextNetworkRequestId() { 756 return mNextNetworkRequestId++; 757 } 758 759 private void assignNextNetId(NetworkAgentInfo nai) { 760 synchronized (mNetworkForNetId) { 761 for (int i = MIN_NET_ID; i <= MAX_NET_ID; i++) { 762 int netId = mNextNetId; 763 if (++mNextNetId > MAX_NET_ID) mNextNetId = MIN_NET_ID; 764 // Make sure NetID unused. http://b/16815182 765 if (mNetworkForNetId.get(netId) == null) { 766 nai.network = new Network(netId); 767 mNetworkForNetId.put(netId, nai); 768 return; 769 } 770 } 771 } 772 throw new IllegalStateException("No free netIds"); 773 } 774 775 private int getConnectivityChangeDelay() { 776 final ContentResolver cr = mContext.getContentResolver(); 777 778 /** Check system properties for the default value then use secure settings value, if any. */ 779 int defaultDelay = SystemProperties.getInt( 780 "conn." + Settings.Global.CONNECTIVITY_CHANGE_DELAY, 781 ConnectivityManager.CONNECTIVITY_CHANGE_DELAY_DEFAULT); 782 return Settings.Global.getInt(cr, Settings.Global.CONNECTIVITY_CHANGE_DELAY, 783 defaultDelay); 784 } 785 786 private boolean teardown(NetworkStateTracker netTracker) { 787 if (netTracker.teardown()) { 788 netTracker.setTeardownRequested(true); 789 return true; 790 } else { 791 return false; 792 } 793 } 794 795 /** 796 * Check if UID should be blocked from using the network represented by the 797 * given {@link NetworkStateTracker}. 798 */ 799 private boolean isNetworkBlocked(int networkType, int uid) { 800 final boolean networkCostly; 801 final int uidRules; 802 803 LinkProperties lp = getLinkPropertiesForType(networkType); 804 final String iface = (lp == null ? "" : lp.getInterfaceName()); 805 synchronized (mRulesLock) { 806 networkCostly = mMeteredIfaces.contains(iface); 807 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 808 } 809 810 if (networkCostly && (uidRules & RULE_REJECT_METERED) != 0) { 811 return true; 812 } 813 814 // no restrictive rules; network is visible 815 return false; 816 } 817 818 /** 819 * Return a filtered {@link NetworkInfo}, potentially marked 820 * {@link DetailedState#BLOCKED} based on 821 * {@link #isNetworkBlocked}. 822 */ 823 private NetworkInfo getFilteredNetworkInfo(int networkType, int uid) { 824 NetworkInfo info = getNetworkInfoForType(networkType); 825 return getFilteredNetworkInfo(info, networkType, uid); 826 } 827 828 private NetworkInfo getFilteredNetworkInfo(NetworkInfo info, int networkType, int uid) { 829 if (isNetworkBlocked(networkType, uid)) { 830 // network is blocked; clone and override state 831 info = new NetworkInfo(info); 832 info.setDetailedState(DetailedState.BLOCKED, null, null); 833 if (DBG) log("returning Blocked NetworkInfo"); 834 } 835 if (mLockdownTracker != null) { 836 info = mLockdownTracker.augmentNetworkInfo(info); 837 if (DBG) log("returning Locked NetworkInfo"); 838 } 839 return info; 840 } 841 842 /** 843 * Return NetworkInfo for the active (i.e., connected) network interface. 844 * It is assumed that at most one network is active at a time. If more 845 * than one is active, it is indeterminate which will be returned. 846 * @return the info for the active network, or {@code null} if none is 847 * active 848 */ 849 @Override 850 public NetworkInfo getActiveNetworkInfo() { 851 enforceAccessPermission(); 852 final int uid = Binder.getCallingUid(); 853 return getNetworkInfo(mActiveDefaultNetwork, uid); 854 } 855 856 // only called when the default request is satisfied 857 private void updateActiveDefaultNetwork(NetworkAgentInfo nai) { 858 if (nai != null) { 859 mActiveDefaultNetwork = nai.networkInfo.getType(); 860 } else { 861 mActiveDefaultNetwork = TYPE_NONE; 862 } 863 } 864 865 /** 866 * Find the first Provisioning network. 867 * 868 * @return NetworkInfo or null if none. 869 */ 870 private NetworkInfo getProvisioningNetworkInfo() { 871 enforceAccessPermission(); 872 873 // Find the first Provisioning Network 874 NetworkInfo provNi = null; 875 for (NetworkInfo ni : getAllNetworkInfo()) { 876 if (ni.isConnectedToProvisioningNetwork()) { 877 provNi = ni; 878 break; 879 } 880 } 881 if (DBG) log("getProvisioningNetworkInfo: X provNi=" + provNi); 882 return provNi; 883 } 884 885 /** 886 * Find the first Provisioning network or the ActiveDefaultNetwork 887 * if there is no Provisioning network 888 * 889 * @return NetworkInfo or null if none. 890 */ 891 @Override 892 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 893 enforceAccessPermission(); 894 895 NetworkInfo provNi = getProvisioningNetworkInfo(); 896 if (provNi == null) { 897 final int uid = Binder.getCallingUid(); 898 provNi = getNetworkInfo(mActiveDefaultNetwork, uid); 899 } 900 if (DBG) log("getProvisioningOrActiveNetworkInfo: X provNi=" + provNi); 901 return provNi; 902 } 903 904 public NetworkInfo getActiveNetworkInfoUnfiltered() { 905 enforceAccessPermission(); 906 if (isNetworkTypeValid(mActiveDefaultNetwork)) { 907 return getNetworkInfoForType(mActiveDefaultNetwork); 908 } 909 return null; 910 } 911 912 @Override 913 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 914 enforceConnectivityInternalPermission(); 915 return getNetworkInfo(mActiveDefaultNetwork, uid); 916 } 917 918 @Override 919 public NetworkInfo getNetworkInfo(int networkType) { 920 enforceAccessPermission(); 921 final int uid = Binder.getCallingUid(); 922 return getNetworkInfo(networkType, uid); 923 } 924 925 private NetworkInfo getNetworkInfo(int networkType, int uid) { 926 NetworkInfo info = null; 927 if (isNetworkTypeValid(networkType)) { 928 if (getNetworkInfoForType(networkType) != null) { 929 info = getFilteredNetworkInfo(networkType, uid); 930 } 931 } 932 return info; 933 } 934 935 @Override 936 public NetworkInfo getNetworkInfoForNetwork(Network network) { 937 enforceAccessPermission(); 938 if (network == null) return null; 939 940 final int uid = Binder.getCallingUid(); 941 NetworkAgentInfo nai = null; 942 synchronized (mNetworkForNetId) { 943 nai = mNetworkForNetId.get(network.netId); 944 } 945 if (nai == null) return null; 946 synchronized (nai) { 947 if (nai.networkInfo == null) return null; 948 949 return getFilteredNetworkInfo(nai.networkInfo, nai.networkInfo.getType(), uid); 950 } 951 } 952 953 @Override 954 public NetworkInfo[] getAllNetworkInfo() { 955 enforceAccessPermission(); 956 final int uid = Binder.getCallingUid(); 957 final ArrayList<NetworkInfo> result = Lists.newArrayList(); 958 synchronized (mRulesLock) { 959 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 960 networkType++) { 961 if (getNetworkInfoForType(networkType) != null) { 962 result.add(getFilteredNetworkInfo(networkType, uid)); 963 } 964 } 965 } 966 return result.toArray(new NetworkInfo[result.size()]); 967 } 968 969 @Override 970 public Network[] getAllNetworks() { 971 enforceAccessPermission(); 972 final ArrayList<Network> result = new ArrayList(); 973 synchronized (mNetworkForNetId) { 974 for (int i = 0; i < mNetworkForNetId.size(); i++) { 975 result.add(new Network(mNetworkForNetId.valueAt(i).network)); 976 } 977 } 978 return result.toArray(new Network[result.size()]); 979 } 980 981 @Override 982 public boolean isNetworkSupported(int networkType) { 983 enforceAccessPermission(); 984 return (isNetworkTypeValid(networkType) && (getNetworkInfoForType(networkType) != null)); 985 } 986 987 /** 988 * Return LinkProperties for the active (i.e., connected) default 989 * network interface. It is assumed that at most one default network 990 * is active at a time. If more than one is active, it is indeterminate 991 * which will be returned. 992 * @return the ip properties for the active network, or {@code null} if 993 * none is active 994 */ 995 @Override 996 public LinkProperties getActiveLinkProperties() { 997 return getLinkPropertiesForType(mActiveDefaultNetwork); 998 } 999 1000 @Override 1001 public LinkProperties getLinkPropertiesForType(int networkType) { 1002 enforceAccessPermission(); 1003 if (isNetworkTypeValid(networkType)) { 1004 return getLinkPropertiesForTypeInternal(networkType); 1005 } 1006 return null; 1007 } 1008 1009 // TODO - this should be ALL networks 1010 @Override 1011 public LinkProperties getLinkProperties(Network network) { 1012 enforceAccessPermission(); 1013 NetworkAgentInfo nai = null; 1014 synchronized (mNetworkForNetId) { 1015 nai = mNetworkForNetId.get(network.netId); 1016 } 1017 1018 if (nai != null) { 1019 synchronized (nai) { 1020 return new LinkProperties(nai.linkProperties); 1021 } 1022 } 1023 return null; 1024 } 1025 1026 @Override 1027 public NetworkCapabilities getNetworkCapabilities(Network network) { 1028 enforceAccessPermission(); 1029 NetworkAgentInfo nai = null; 1030 synchronized (mNetworkForNetId) { 1031 nai = mNetworkForNetId.get(network.netId); 1032 } 1033 if (nai != null) { 1034 synchronized (nai) { 1035 return new NetworkCapabilities(nai.networkCapabilities); 1036 } 1037 } 1038 return null; 1039 } 1040 1041 @Override 1042 public NetworkState[] getAllNetworkState() { 1043 enforceAccessPermission(); 1044 final int uid = Binder.getCallingUid(); 1045 final ArrayList<NetworkState> result = Lists.newArrayList(); 1046 synchronized (mRulesLock) { 1047 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1048 networkType++) { 1049 if (getNetworkInfoForType(networkType) != null) { 1050 final NetworkInfo info = getFilteredNetworkInfo(networkType, uid); 1051 final LinkProperties lp = getLinkPropertiesForTypeInternal(networkType); 1052 final NetworkCapabilities netcap = getNetworkCapabilitiesForType(networkType); 1053 result.add(new NetworkState(info, lp, netcap)); 1054 } 1055 } 1056 } 1057 return result.toArray(new NetworkState[result.size()]); 1058 } 1059 1060 private NetworkState getNetworkStateUnchecked(int networkType) { 1061 if (isNetworkTypeValid(networkType)) { 1062 NetworkInfo info = getNetworkInfoForType(networkType); 1063 if (info != null) { 1064 return new NetworkState(info, 1065 getLinkPropertiesForTypeInternal(networkType), 1066 getNetworkCapabilitiesForType(networkType)); 1067 } 1068 } 1069 return null; 1070 } 1071 1072 @Override 1073 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1074 enforceAccessPermission(); 1075 1076 final long token = Binder.clearCallingIdentity(); 1077 try { 1078 final NetworkState state = getNetworkStateUnchecked(mActiveDefaultNetwork); 1079 if (state != null) { 1080 try { 1081 return mPolicyManager.getNetworkQuotaInfo(state); 1082 } catch (RemoteException e) { 1083 } 1084 } 1085 return null; 1086 } finally { 1087 Binder.restoreCallingIdentity(token); 1088 } 1089 } 1090 1091 @Override 1092 public boolean isActiveNetworkMetered() { 1093 enforceAccessPermission(); 1094 final long token = Binder.clearCallingIdentity(); 1095 try { 1096 return isNetworkMeteredUnchecked(mActiveDefaultNetwork); 1097 } finally { 1098 Binder.restoreCallingIdentity(token); 1099 } 1100 } 1101 1102 private boolean isNetworkMeteredUnchecked(int networkType) { 1103 final NetworkState state = getNetworkStateUnchecked(networkType); 1104 if (state != null) { 1105 try { 1106 return mPolicyManager.isNetworkMetered(state); 1107 } catch (RemoteException e) { 1108 } 1109 } 1110 return false; 1111 } 1112 1113 private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { 1114 @Override 1115 public void interfaceClassDataActivityChanged(String label, boolean active, long tsNanos) { 1116 int deviceType = Integer.parseInt(label); 1117 sendDataActivityBroadcast(deviceType, active, tsNanos); 1118 } 1119 }; 1120 1121 /** 1122 * Ensure that a network route exists to deliver traffic to the specified 1123 * host via the specified network interface. 1124 * @param networkType the type of the network over which traffic to the 1125 * specified host is to be routed 1126 * @param hostAddress the IP address of the host to which the route is 1127 * desired 1128 * @return {@code true} on success, {@code false} on failure 1129 */ 1130 public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress) { 1131 enforceChangePermission(); 1132 if (mProtectedNetworks.contains(networkType)) { 1133 enforceConnectivityInternalPermission(); 1134 } 1135 1136 InetAddress addr; 1137 try { 1138 addr = InetAddress.getByAddress(hostAddress); 1139 } catch (UnknownHostException e) { 1140 if (DBG) log("requestRouteToHostAddress got " + e.toString()); 1141 return false; 1142 } 1143 1144 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1145 if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); 1146 return false; 1147 } 1148 1149 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1150 if (nai == null) { 1151 if (mLegacyTypeTracker.isTypeSupported(networkType) == false) { 1152 if (DBG) log("requestRouteToHostAddress on unsupported network: " + networkType); 1153 } else { 1154 if (DBG) log("requestRouteToHostAddress on down network: " + networkType); 1155 } 1156 return false; 1157 } 1158 1159 DetailedState netState; 1160 synchronized (nai) { 1161 netState = nai.networkInfo.getDetailedState(); 1162 } 1163 1164 if (netState != DetailedState.CONNECTED && netState != DetailedState.CAPTIVE_PORTAL_CHECK) { 1165 if (VDBG) { 1166 log("requestRouteToHostAddress on down network " 1167 + "(" + networkType + ") - dropped" 1168 + " netState=" + netState); 1169 } 1170 return false; 1171 } 1172 1173 final int uid = Binder.getCallingUid(); 1174 final long token = Binder.clearCallingIdentity(); 1175 try { 1176 LinkProperties lp; 1177 int netId; 1178 synchronized (nai) { 1179 lp = nai.linkProperties; 1180 netId = nai.network.netId; 1181 } 1182 boolean ok = addLegacyRouteToHost(lp, addr, netId, uid); 1183 if (DBG) log("requestRouteToHostAddress ok=" + ok); 1184 return ok; 1185 } finally { 1186 Binder.restoreCallingIdentity(token); 1187 } 1188 } 1189 1190 private boolean addLegacyRouteToHost(LinkProperties lp, InetAddress addr, int netId, int uid) { 1191 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), addr); 1192 if (bestRoute == null) { 1193 bestRoute = RouteInfo.makeHostRoute(addr, lp.getInterfaceName()); 1194 } else { 1195 String iface = bestRoute.getInterface(); 1196 if (bestRoute.getGateway().equals(addr)) { 1197 // if there is no better route, add the implied hostroute for our gateway 1198 bestRoute = RouteInfo.makeHostRoute(addr, iface); 1199 } else { 1200 // if we will connect to this through another route, add a direct route 1201 // to it's gateway 1202 bestRoute = RouteInfo.makeHostRoute(addr, bestRoute.getGateway(), iface); 1203 } 1204 } 1205 if (DBG) log("Adding " + bestRoute + " for interface " + bestRoute.getInterface()); 1206 try { 1207 mNetd.addLegacyRouteForNetId(netId, bestRoute, uid); 1208 } catch (Exception e) { 1209 // never crash - catch them all 1210 if (DBG) loge("Exception trying to add a route: " + e); 1211 return false; 1212 } 1213 return true; 1214 } 1215 1216 public void setDataDependency(int networkType, boolean met) { 1217 enforceConnectivityInternalPermission(); 1218 1219 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_DEPENDENCY_MET, 1220 (met ? ENABLED : DISABLED), networkType)); 1221 } 1222 1223 private void handleSetDependencyMet(int networkType, boolean met) { 1224 if (mNetTrackers[networkType] != null) { 1225 if (DBG) { 1226 log("handleSetDependencyMet(" + networkType + ", " + met + ")"); 1227 } 1228 mNetTrackers[networkType].setDependencyMet(met); 1229 } 1230 } 1231 1232 private INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() { 1233 @Override 1234 public void onUidRulesChanged(int uid, int uidRules) { 1235 // caller is NPMS, since we only register with them 1236 if (LOGD_RULES) { 1237 log("onUidRulesChanged(uid=" + uid + ", uidRules=" + uidRules + ")"); 1238 } 1239 1240 synchronized (mRulesLock) { 1241 // skip update when we've already applied rules 1242 final int oldRules = mUidRules.get(uid, RULE_ALLOW_ALL); 1243 if (oldRules == uidRules) return; 1244 1245 mUidRules.put(uid, uidRules); 1246 } 1247 1248 // TODO: notify UID when it has requested targeted updates 1249 } 1250 1251 @Override 1252 public void onMeteredIfacesChanged(String[] meteredIfaces) { 1253 // caller is NPMS, since we only register with them 1254 if (LOGD_RULES) { 1255 log("onMeteredIfacesChanged(ifaces=" + Arrays.toString(meteredIfaces) + ")"); 1256 } 1257 1258 synchronized (mRulesLock) { 1259 mMeteredIfaces.clear(); 1260 for (String iface : meteredIfaces) { 1261 mMeteredIfaces.add(iface); 1262 } 1263 } 1264 } 1265 1266 @Override 1267 public void onRestrictBackgroundChanged(boolean restrictBackground) { 1268 // caller is NPMS, since we only register with them 1269 if (LOGD_RULES) { 1270 log("onRestrictBackgroundChanged(restrictBackground=" + restrictBackground + ")"); 1271 } 1272 1273 // kick off connectivity change broadcast for active network, since 1274 // global background policy change is radical. 1275 final int networkType = mActiveDefaultNetwork; 1276 if (isNetworkTypeValid(networkType)) { 1277 final NetworkStateTracker tracker = mNetTrackers[networkType]; 1278 if (tracker != null) { 1279 final NetworkInfo info = tracker.getNetworkInfo(); 1280 if (info != null && info.isConnected()) { 1281 sendConnectedBroadcast(info); 1282 } 1283 } 1284 } 1285 } 1286 }; 1287 1288 @Override 1289 public void setPolicyDataEnable(int networkType, boolean enabled) { 1290 // only someone like NPMS should only be calling us 1291 mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); 1292 1293 mHandler.sendMessage(mHandler.obtainMessage( 1294 EVENT_SET_POLICY_DATA_ENABLE, networkType, (enabled ? ENABLED : DISABLED))); 1295 } 1296 1297 private void handleSetPolicyDataEnable(int networkType, boolean enabled) { 1298 // TODO - handle this passing to factories 1299// if (isNetworkTypeValid(networkType)) { 1300// final NetworkStateTracker tracker = mNetTrackers[networkType]; 1301// if (tracker != null) { 1302// tracker.setPolicyDataEnable(enabled); 1303// } 1304// } 1305 } 1306 1307 private void enforceAccessPermission() { 1308 mContext.enforceCallingOrSelfPermission( 1309 android.Manifest.permission.ACCESS_NETWORK_STATE, 1310 "ConnectivityService"); 1311 } 1312 1313 private void enforceChangePermission() { 1314 mContext.enforceCallingOrSelfPermission( 1315 android.Manifest.permission.CHANGE_NETWORK_STATE, 1316 "ConnectivityService"); 1317 } 1318 1319 // TODO Make this a special check when it goes public 1320 private void enforceTetherChangePermission() { 1321 mContext.enforceCallingOrSelfPermission( 1322 android.Manifest.permission.CHANGE_NETWORK_STATE, 1323 "ConnectivityService"); 1324 } 1325 1326 private void enforceTetherAccessPermission() { 1327 mContext.enforceCallingOrSelfPermission( 1328 android.Manifest.permission.ACCESS_NETWORK_STATE, 1329 "ConnectivityService"); 1330 } 1331 1332 private void enforceConnectivityInternalPermission() { 1333 mContext.enforceCallingOrSelfPermission( 1334 android.Manifest.permission.CONNECTIVITY_INTERNAL, 1335 "ConnectivityService"); 1336 } 1337 1338 public void sendConnectedBroadcast(NetworkInfo info) { 1339 enforceConnectivityInternalPermission(); 1340 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1341 sendGeneralBroadcast(info, CONNECTIVITY_ACTION); 1342 } 1343 1344 private void sendConnectedBroadcastDelayed(NetworkInfo info, int delayMs) { 1345 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1346 sendGeneralBroadcastDelayed(info, CONNECTIVITY_ACTION, delayMs); 1347 } 1348 1349 private void sendInetConditionBroadcast(NetworkInfo info) { 1350 sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION); 1351 } 1352 1353 private Intent makeGeneralIntent(NetworkInfo info, String bcastType) { 1354 if (mLockdownTracker != null) { 1355 info = mLockdownTracker.augmentNetworkInfo(info); 1356 } 1357 1358 Intent intent = new Intent(bcastType); 1359 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 1360 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 1361 if (info.isFailover()) { 1362 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 1363 info.setFailover(false); 1364 } 1365 if (info.getReason() != null) { 1366 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 1367 } 1368 if (info.getExtraInfo() != null) { 1369 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 1370 info.getExtraInfo()); 1371 } 1372 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 1373 return intent; 1374 } 1375 1376 private void sendGeneralBroadcast(NetworkInfo info, String bcastType) { 1377 sendStickyBroadcast(makeGeneralIntent(info, bcastType)); 1378 } 1379 1380 private void sendGeneralBroadcastDelayed(NetworkInfo info, String bcastType, int delayMs) { 1381 sendStickyBroadcastDelayed(makeGeneralIntent(info, bcastType), delayMs); 1382 } 1383 1384 private void sendDataActivityBroadcast(int deviceType, boolean active, long tsNanos) { 1385 Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); 1386 intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); 1387 intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); 1388 intent.putExtra(ConnectivityManager.EXTRA_REALTIME_NS, tsNanos); 1389 final long ident = Binder.clearCallingIdentity(); 1390 try { 1391 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, 1392 RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); 1393 } finally { 1394 Binder.restoreCallingIdentity(ident); 1395 } 1396 } 1397 1398 private void sendStickyBroadcast(Intent intent) { 1399 synchronized(this) { 1400 if (!mSystemReady) { 1401 mInitialBroadcast = new Intent(intent); 1402 } 1403 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1404 if (DBG) { 1405 log("sendStickyBroadcast: action=" + intent.getAction()); 1406 } 1407 1408 final long ident = Binder.clearCallingIdentity(); 1409 try { 1410 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1411 } finally { 1412 Binder.restoreCallingIdentity(ident); 1413 } 1414 } 1415 } 1416 1417 private void sendStickyBroadcastDelayed(Intent intent, int delayMs) { 1418 if (delayMs <= 0) { 1419 sendStickyBroadcast(intent); 1420 } else { 1421 if (VDBG) { 1422 log("sendStickyBroadcastDelayed: delayMs=" + delayMs + ", action=" 1423 + intent.getAction()); 1424 } 1425 mHandler.sendMessageDelayed(mHandler.obtainMessage( 1426 EVENT_SEND_STICKY_BROADCAST_INTENT, intent), delayMs); 1427 } 1428 } 1429 1430 void systemReady() { 1431 // start network sampling .. 1432 Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 1433 intent.setPackage(mContext.getPackageName()); 1434 1435 mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, 1436 SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); 1437 setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); 1438 1439 loadGlobalProxy(); 1440 1441 synchronized(this) { 1442 mSystemReady = true; 1443 if (mInitialBroadcast != null) { 1444 mContext.sendStickyBroadcastAsUser(mInitialBroadcast, UserHandle.ALL); 1445 mInitialBroadcast = null; 1446 } 1447 } 1448 // load the global proxy at startup 1449 mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY)); 1450 1451 // Try bringing up tracker, but if KeyStore isn't ready yet, wait 1452 // for user to unlock device. 1453 if (!updateLockdownVpn()) { 1454 final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_PRESENT); 1455 mContext.registerReceiver(mUserPresentReceiver, filter); 1456 } 1457 1458 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SYSTEM_READY)); 1459 } 1460 1461 private BroadcastReceiver mUserPresentReceiver = new BroadcastReceiver() { 1462 @Override 1463 public void onReceive(Context context, Intent intent) { 1464 // Try creating lockdown tracker, since user present usually means 1465 // unlocked keystore. 1466 if (updateLockdownVpn()) { 1467 mContext.unregisterReceiver(this); 1468 } 1469 } 1470 }; 1471 1472 /** @hide */ 1473 @Override 1474 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 1475 enforceConnectivityInternalPermission(); 1476 if (DBG) log("captivePortalCheckCompleted: ni=" + info + " captive=" + isCaptivePortal); 1477// mNetTrackers[info.getType()].captivePortalCheckCompleted(isCaptivePortal); 1478 } 1479 1480 /** 1481 * Setup data activity tracking for the given network. 1482 * 1483 * Every {@code setupDataActivityTracking} should be paired with a 1484 * {@link #removeDataActivityTracking} for cleanup. 1485 */ 1486 private void setupDataActivityTracking(NetworkAgentInfo networkAgent) { 1487 final String iface = networkAgent.linkProperties.getInterfaceName(); 1488 1489 final int timeout; 1490 int type = ConnectivityManager.TYPE_NONE; 1491 1492 if (networkAgent.networkCapabilities.hasTransport( 1493 NetworkCapabilities.TRANSPORT_CELLULAR)) { 1494 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1495 Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, 1496 5); 1497 type = ConnectivityManager.TYPE_MOBILE; 1498 } else if (networkAgent.networkCapabilities.hasTransport( 1499 NetworkCapabilities.TRANSPORT_WIFI)) { 1500 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1501 Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, 1502 0); 1503 type = ConnectivityManager.TYPE_WIFI; 1504 } else { 1505 // do not track any other networks 1506 timeout = 0; 1507 } 1508 1509 if (timeout > 0 && iface != null && type != ConnectivityManager.TYPE_NONE) { 1510 try { 1511 mNetd.addIdleTimer(iface, timeout, type); 1512 } catch (Exception e) { 1513 // You shall not crash! 1514 loge("Exception in setupDataActivityTracking " + e); 1515 } 1516 } 1517 } 1518 1519 /** 1520 * Remove data activity tracking when network disconnects. 1521 */ 1522 private void removeDataActivityTracking(NetworkAgentInfo networkAgent) { 1523 final String iface = networkAgent.linkProperties.getInterfaceName(); 1524 final NetworkCapabilities caps = networkAgent.networkCapabilities; 1525 1526 if (iface != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) || 1527 caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))) { 1528 try { 1529 // the call fails silently if no idletimer setup for this interface 1530 mNetd.removeIdleTimer(iface); 1531 } catch (Exception e) { 1532 loge("Exception in removeDataActivityTracking " + e); 1533 } 1534 } 1535 } 1536 1537 /** 1538 * Reads the network specific MTU size from reources. 1539 * and set it on it's iface. 1540 */ 1541 private void updateMtu(LinkProperties newLp, LinkProperties oldLp) { 1542 final String iface = newLp.getInterfaceName(); 1543 final int mtu = newLp.getMtu(); 1544 if (oldLp != null && newLp.isIdenticalMtu(oldLp)) { 1545 if (VDBG) log("identical MTU - not setting"); 1546 return; 1547 } 1548 1549 if (LinkProperties.isValidMtu(mtu, newLp.hasGlobalIPv6Address()) == false) { 1550 loge("Unexpected mtu value: " + mtu + ", " + iface); 1551 return; 1552 } 1553 1554 // Cannot set MTU without interface name 1555 if (TextUtils.isEmpty(iface)) { 1556 loge("Setting MTU size with null iface."); 1557 return; 1558 } 1559 1560 try { 1561 if (DBG) log("Setting MTU size: " + iface + ", " + mtu); 1562 mNetd.setMtu(iface, mtu); 1563 } catch (Exception e) { 1564 Slog.e(TAG, "exception in setMtu()" + e); 1565 } 1566 } 1567 1568 private static final String DEFAULT_TCP_BUFFER_SIZES = "4096,87380,110208,4096,16384,110208"; 1569 1570 private void updateTcpBufferSizes(NetworkAgentInfo nai) { 1571 if (isDefaultNetwork(nai) == false) { 1572 return; 1573 } 1574 1575 String tcpBufferSizes = nai.linkProperties.getTcpBufferSizes(); 1576 String[] values = null; 1577 if (tcpBufferSizes != null) { 1578 values = tcpBufferSizes.split(","); 1579 } 1580 1581 if (values == null || values.length != 6) { 1582 if (DBG) log("Invalid tcpBufferSizes string: " + tcpBufferSizes +", using defaults"); 1583 tcpBufferSizes = DEFAULT_TCP_BUFFER_SIZES; 1584 values = tcpBufferSizes.split(","); 1585 } 1586 1587 if (tcpBufferSizes.equals(mCurrentTcpBufferSizes)) return; 1588 1589 try { 1590 if (DBG) Slog.d(TAG, "Setting tx/rx TCP buffers to " + tcpBufferSizes); 1591 1592 final String prefix = "/sys/kernel/ipv4/tcp_"; 1593 FileUtils.stringToFile(prefix + "rmem_min", values[0]); 1594 FileUtils.stringToFile(prefix + "rmem_def", values[1]); 1595 FileUtils.stringToFile(prefix + "rmem_max", values[2]); 1596 FileUtils.stringToFile(prefix + "wmem_min", values[3]); 1597 FileUtils.stringToFile(prefix + "wmem_def", values[4]); 1598 FileUtils.stringToFile(prefix + "wmem_max", values[5]); 1599 mCurrentTcpBufferSizes = tcpBufferSizes; 1600 } catch (IOException e) { 1601 loge("Can't set TCP buffer sizes:" + e); 1602 } 1603 1604 final String defaultRwndKey = "net.tcp.default_init_rwnd"; 1605 int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0); 1606 Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(), 1607 Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue); 1608 final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd"; 1609 if (rwndValue != 0) { 1610 SystemProperties.set(sysctlKey, rwndValue.toString()); 1611 } 1612 } 1613 1614 private void flushVmDnsCache() { 1615 /* 1616 * Tell the VMs to toss their DNS caches 1617 */ 1618 Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE); 1619 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); 1620 /* 1621 * Connectivity events can happen before boot has completed ... 1622 */ 1623 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1624 final long ident = Binder.clearCallingIdentity(); 1625 try { 1626 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 1627 } finally { 1628 Binder.restoreCallingIdentity(ident); 1629 } 1630 } 1631 1632 @Override 1633 public int getRestoreDefaultNetworkDelay(int networkType) { 1634 String restoreDefaultNetworkDelayStr = SystemProperties.get( 1635 NETWORK_RESTORE_DELAY_PROP_NAME); 1636 if(restoreDefaultNetworkDelayStr != null && 1637 restoreDefaultNetworkDelayStr.length() != 0) { 1638 try { 1639 return Integer.valueOf(restoreDefaultNetworkDelayStr); 1640 } catch (NumberFormatException e) { 1641 } 1642 } 1643 // if the system property isn't set, use the value for the apn type 1644 int ret = RESTORE_DEFAULT_NETWORK_DELAY; 1645 1646 if ((networkType <= ConnectivityManager.MAX_NETWORK_TYPE) && 1647 (mNetConfigs[networkType] != null)) { 1648 ret = mNetConfigs[networkType].restoreTime; 1649 } 1650 return ret; 1651 } 1652 1653 @Override 1654 protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { 1655 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1656 if (mContext.checkCallingOrSelfPermission( 1657 android.Manifest.permission.DUMP) 1658 != PackageManager.PERMISSION_GRANTED) { 1659 pw.println("Permission Denial: can't dump ConnectivityService " + 1660 "from from pid=" + Binder.getCallingPid() + ", uid=" + 1661 Binder.getCallingUid()); 1662 return; 1663 } 1664 1665 pw.println("NetworkFactories for:"); 1666 pw.increaseIndent(); 1667 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 1668 pw.println(nfi.name); 1669 } 1670 pw.decreaseIndent(); 1671 pw.println(); 1672 1673 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 1674 pw.print("Active default network: "); 1675 if (defaultNai == null) { 1676 pw.println("none"); 1677 } else { 1678 pw.println(defaultNai.network.netId); 1679 } 1680 pw.println(); 1681 1682 pw.println("Current Networks:"); 1683 pw.increaseIndent(); 1684 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 1685 pw.println(nai.toString()); 1686 pw.increaseIndent(); 1687 pw.println("Requests:"); 1688 pw.increaseIndent(); 1689 for (int i = 0; i < nai.networkRequests.size(); i++) { 1690 pw.println(nai.networkRequests.valueAt(i).toString()); 1691 } 1692 pw.decreaseIndent(); 1693 pw.println("Lingered:"); 1694 pw.increaseIndent(); 1695 for (NetworkRequest nr : nai.networkLingered) pw.println(nr.toString()); 1696 pw.decreaseIndent(); 1697 pw.decreaseIndent(); 1698 } 1699 pw.decreaseIndent(); 1700 pw.println(); 1701 1702 pw.println("Network Requests:"); 1703 pw.increaseIndent(); 1704 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 1705 pw.println(nri.toString()); 1706 } 1707 pw.println(); 1708 pw.decreaseIndent(); 1709 1710 pw.print("mActiveDefaultNetwork: " + mActiveDefaultNetwork); 1711 if (mActiveDefaultNetwork != TYPE_NONE) { 1712 NetworkInfo activeNetworkInfo = getActiveNetworkInfo(); 1713 if (activeNetworkInfo != null) { 1714 pw.print(" " + activeNetworkInfo.getState() + 1715 "/" + activeNetworkInfo.getDetailedState()); 1716 } 1717 } 1718 pw.println(); 1719 1720 pw.println("mLegacyTypeTracker:"); 1721 pw.increaseIndent(); 1722 mLegacyTypeTracker.dump(pw); 1723 pw.decreaseIndent(); 1724 pw.println(); 1725 1726 synchronized (this) { 1727 pw.println("NetworkTranstionWakeLock is currently " + 1728 (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held."); 1729 pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy); 1730 } 1731 pw.println(); 1732 1733 mTethering.dump(fd, pw, args); 1734 1735 if (mInetLog != null) { 1736 pw.println(); 1737 pw.println("Inet condition reports:"); 1738 pw.increaseIndent(); 1739 for(int i = 0; i < mInetLog.size(); i++) { 1740 pw.println(mInetLog.get(i)); 1741 } 1742 pw.decreaseIndent(); 1743 } 1744 } 1745 1746 private boolean isLiveNetworkAgent(NetworkAgentInfo nai, String msg) { 1747 final NetworkAgentInfo officialNai; 1748 synchronized (mNetworkForNetId) { 1749 officialNai = mNetworkForNetId.get(nai.network.netId); 1750 } 1751 if (officialNai != null && officialNai.equals(nai)) return true; 1752 if (officialNai != null || VDBG) { 1753 loge(msg + " - isLiveNetworkAgent found mismatched netId: " + officialNai + 1754 " - " + nai); 1755 } 1756 return false; 1757 } 1758 1759 // must be stateless - things change under us. 1760 private class NetworkStateTrackerHandler extends Handler { 1761 public NetworkStateTrackerHandler(Looper looper) { 1762 super(looper); 1763 } 1764 1765 @Override 1766 public void handleMessage(Message msg) { 1767 NetworkInfo info; 1768 switch (msg.what) { 1769 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 1770 handleAsyncChannelHalfConnect(msg); 1771 break; 1772 } 1773 case AsyncChannel.CMD_CHANNEL_DISCONNECT: { 1774 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1775 if (nai != null) nai.asyncChannel.disconnect(); 1776 break; 1777 } 1778 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 1779 handleAsyncChannelDisconnected(msg); 1780 break; 1781 } 1782 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { 1783 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1784 if (nai == null) { 1785 loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); 1786 } else { 1787 updateCapabilities(nai, (NetworkCapabilities)msg.obj); 1788 } 1789 break; 1790 } 1791 case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { 1792 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1793 if (nai == null) { 1794 loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); 1795 } else { 1796 if (VDBG) { 1797 log("Update of LinkProperties for " + nai.name() + 1798 "; created=" + nai.created); 1799 } 1800 LinkProperties oldLp = nai.linkProperties; 1801 synchronized (nai) { 1802 nai.linkProperties = (LinkProperties)msg.obj; 1803 } 1804 if (nai.created) updateLinkProperties(nai, oldLp); 1805 } 1806 break; 1807 } 1808 case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { 1809 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1810 if (nai == null) { 1811 loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); 1812 break; 1813 } 1814 info = (NetworkInfo) msg.obj; 1815 updateNetworkInfo(nai, info); 1816 break; 1817 } 1818 case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { 1819 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1820 if (nai == null) { 1821 loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); 1822 break; 1823 } 1824 Integer score = (Integer) msg.obj; 1825 if (score != null) updateNetworkScore(nai, score.intValue()); 1826 break; 1827 } 1828 case NetworkAgent.EVENT_UID_RANGES_ADDED: { 1829 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1830 if (nai == null) { 1831 loge("EVENT_UID_RANGES_ADDED from unknown NetworkAgent"); 1832 break; 1833 } 1834 try { 1835 mNetd.addVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1836 } catch (Exception e) { 1837 // Never crash! 1838 loge("Exception in addVpnUidRanges: " + e); 1839 } 1840 break; 1841 } 1842 case NetworkAgent.EVENT_UID_RANGES_REMOVED: { 1843 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1844 if (nai == null) { 1845 loge("EVENT_UID_RANGES_REMOVED from unknown NetworkAgent"); 1846 break; 1847 } 1848 try { 1849 mNetd.removeVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1850 } catch (Exception e) { 1851 // Never crash! 1852 loge("Exception in removeVpnUidRanges: " + e); 1853 } 1854 break; 1855 } 1856 case NetworkAgent.EVENT_BLOCK_ADDRESS_FAMILY: { 1857 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1858 if (nai == null) { 1859 loge("EVENT_BLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1860 break; 1861 } 1862 try { 1863 mNetd.blockAddressFamily((Integer) msg.obj, nai.network.netId, 1864 nai.linkProperties.getInterfaceName()); 1865 } catch (Exception e) { 1866 // Never crash! 1867 loge("Exception in blockAddressFamily: " + e); 1868 } 1869 break; 1870 } 1871 case NetworkAgent.EVENT_UNBLOCK_ADDRESS_FAMILY: { 1872 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1873 if (nai == null) { 1874 loge("EVENT_UNBLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1875 break; 1876 } 1877 try { 1878 mNetd.unblockAddressFamily((Integer) msg.obj, nai.network.netId, 1879 nai.linkProperties.getInterfaceName()); 1880 } catch (Exception e) { 1881 // Never crash! 1882 loge("Exception in blockAddressFamily: " + e); 1883 } 1884 break; 1885 } 1886 case NetworkMonitor.EVENT_NETWORK_VALIDATED: { 1887 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1888 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_VALIDATED")) { 1889 handleConnectionValidated(nai); 1890 } 1891 break; 1892 } 1893 case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { 1894 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1895 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_LINGER_COMPLETE")) { 1896 handleLingerComplete(nai); 1897 } 1898 break; 1899 } 1900 case NetworkMonitor.EVENT_PROVISIONING_NOTIFICATION: { 1901 NetworkAgentInfo nai = null; 1902 synchronized (mNetworkForNetId) { 1903 nai = mNetworkForNetId.get(msg.arg2); 1904 } 1905 if (nai == null) { 1906 loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); 1907 break; 1908 } 1909 if (msg.arg1 == 0) { 1910 setProvNotificationVisibleIntent(false, msg.arg2, 0, null, null); 1911 } else { 1912 setProvNotificationVisibleIntent(true, msg.arg2, nai.networkInfo.getType(), 1913 nai.networkInfo.getExtraInfo(), (PendingIntent)msg.obj); 1914 } 1915 break; 1916 } 1917 case NetworkStateTracker.EVENT_STATE_CHANGED: { 1918 info = (NetworkInfo) msg.obj; 1919 NetworkInfo.State state = info.getState(); 1920 1921 if (VDBG || (state == NetworkInfo.State.CONNECTED) || 1922 (state == NetworkInfo.State.DISCONNECTED) || 1923 (state == NetworkInfo.State.SUSPENDED)) { 1924 log("ConnectivityChange for " + 1925 info.getTypeName() + ": " + 1926 state + "/" + info.getDetailedState()); 1927 } 1928 1929 // Since mobile has the notion of a network/apn that can be used for 1930 // provisioning we need to check every time we're connected as 1931 // CaptiveProtalTracker won't detected it because DCT doesn't report it 1932 // as connected as ACTION_ANY_DATA_CONNECTION_STATE_CHANGED instead its 1933 // reported as ACTION_DATA_CONNECTION_CONNECTED_TO_PROVISIONING_APN. Which 1934 // is received by MDST and sent here as EVENT_STATE_CHANGED. 1935 if (ConnectivityManager.isNetworkTypeMobile(info.getType()) 1936 && (0 != Settings.Global.getInt(mContext.getContentResolver(), 1937 Settings.Global.DEVICE_PROVISIONED, 0)) 1938 && (((state == NetworkInfo.State.CONNECTED) 1939 && (info.getType() == ConnectivityManager.TYPE_MOBILE)) 1940 || info.isConnectedToProvisioningNetwork())) { 1941 log("ConnectivityChange checkMobileProvisioning for" 1942 + " TYPE_MOBILE or ProvisioningNetwork"); 1943 checkMobileProvisioning(CheckMp.MAX_TIMEOUT_MS); 1944 } 1945 1946 EventLogTags.writeConnectivityStateChanged( 1947 info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); 1948 1949 if (info.isConnectedToProvisioningNetwork()) { 1950 /** 1951 * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING 1952 * for now its an in between network, its a network that 1953 * is actually a default network but we don't want it to be 1954 * announced as such to keep background applications from 1955 * trying to use it. It turns out that some still try so we 1956 * take the additional step of clearing any default routes 1957 * to the link that may have incorrectly setup by the lower 1958 * levels. 1959 */ 1960 LinkProperties lp = getLinkPropertiesForTypeInternal(info.getType()); 1961 if (DBG) { 1962 log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); 1963 } 1964 1965 // Clear any default routes setup by the radio so 1966 // any activity by applications trying to use this 1967 // connection will fail until the provisioning network 1968 // is enabled. 1969 /* 1970 for (RouteInfo r : lp.getRoutes()) { 1971 removeRoute(lp, r, TO_DEFAULT_TABLE, 1972 mNetTrackers[info.getType()].getNetwork().netId); 1973 } 1974 */ 1975 } else if (state == NetworkInfo.State.DISCONNECTED) { 1976 } else if (state == NetworkInfo.State.SUSPENDED) { 1977 } else if (state == NetworkInfo.State.CONNECTED) { 1978 // handleConnect(info); 1979 } 1980 if (mLockdownTracker != null) { 1981 mLockdownTracker.onNetworkInfoChanged(info); 1982 } 1983 break; 1984 } 1985 case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { 1986 info = (NetworkInfo) msg.obj; 1987 // TODO: Temporary allowing network configuration 1988 // change not resetting sockets. 1989 // @see bug/4455071 1990 /* 1991 handleConnectivityChange(info.getType(), mCurrentLinkProperties[info.getType()], 1992 false); 1993 */ 1994 break; 1995 } 1996 } 1997 } 1998 } 1999 2000 private void handleAsyncChannelHalfConnect(Message msg) { 2001 AsyncChannel ac = (AsyncChannel) msg.obj; 2002 if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { 2003 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2004 if (VDBG) log("NetworkFactory connected"); 2005 // A network factory has connected. Send it all current NetworkRequests. 2006 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 2007 if (nri.isRequest == false) continue; 2008 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2009 ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, 2010 (nai != null ? nai.currentScore : 0), 0, nri.request); 2011 } 2012 } else { 2013 loge("Error connecting NetworkFactory"); 2014 mNetworkFactoryInfos.remove(msg.obj); 2015 } 2016 } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { 2017 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2018 if (VDBG) log("NetworkAgent connected"); 2019 // A network agent has requested a connection. Establish the connection. 2020 mNetworkAgentInfos.get(msg.replyTo).asyncChannel. 2021 sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 2022 } else { 2023 loge("Error connecting NetworkAgent"); 2024 NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); 2025 if (nai != null) { 2026 synchronized (mNetworkForNetId) { 2027 mNetworkForNetId.remove(nai.network.netId); 2028 } 2029 // Just in case. 2030 mLegacyTypeTracker.remove(nai); 2031 } 2032 } 2033 } 2034 } 2035 private void handleAsyncChannelDisconnected(Message msg) { 2036 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 2037 if (nai != null) { 2038 if (DBG) { 2039 log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); 2040 } 2041 // A network agent has disconnected. 2042 if (nai.created) { 2043 // Tell netd to clean up the configuration for this network 2044 // (routing rules, DNS, etc). 2045 try { 2046 mNetd.removeNetwork(nai.network.netId); 2047 } catch (Exception e) { 2048 loge("Exception removing network: " + e); 2049 } 2050 } 2051 // TODO - if we move the logic to the network agent (have them disconnect 2052 // because they lost all their requests or because their score isn't good) 2053 // then they would disconnect organically, report their new state and then 2054 // disconnect the channel. 2055 if (nai.networkInfo.isConnected()) { 2056 nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, 2057 null, null); 2058 } 2059 if (isDefaultNetwork(nai)) { 2060 mDefaultInetConditionPublished = 0; 2061 } 2062 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); 2063 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); 2064 mNetworkAgentInfos.remove(msg.replyTo); 2065 updateClat(null, nai.linkProperties, nai); 2066 mLegacyTypeTracker.remove(nai); 2067 synchronized (mNetworkForNetId) { 2068 mNetworkForNetId.remove(nai.network.netId); 2069 } 2070 // Since we've lost the network, go through all the requests that 2071 // it was satisfying and see if any other factory can satisfy them. 2072 final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); 2073 for (int i = 0; i < nai.networkRequests.size(); i++) { 2074 NetworkRequest request = nai.networkRequests.valueAt(i); 2075 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); 2076 if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { 2077 if (DBG) { 2078 log("Checking for replacement network to handle request " + request ); 2079 } 2080 mNetworkForRequestId.remove(request.requestId); 2081 sendUpdatedScoreToFactories(request, 0); 2082 NetworkAgentInfo alternative = null; 2083 for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { 2084 NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); 2085 if (existing.networkInfo.isConnected() && 2086 request.networkCapabilities.satisfiedByNetworkCapabilities( 2087 existing.networkCapabilities) && 2088 (alternative == null || 2089 alternative.currentScore < existing.currentScore)) { 2090 alternative = existing; 2091 } 2092 } 2093 if (alternative != null) { 2094 if (DBG) log(" found replacement in " + alternative.name()); 2095 if (!toActivate.contains(alternative)) { 2096 toActivate.add(alternative); 2097 } 2098 } 2099 } 2100 } 2101 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 2102 removeDataActivityTracking(nai); 2103 mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; 2104 requestNetworkTransitionWakelock(nai.name()); 2105 } 2106 for (NetworkAgentInfo networkToActivate : toActivate) { 2107 networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2108 } 2109 } 2110 } 2111 2112 private void handleRegisterNetworkRequest(Message msg) { 2113 final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); 2114 final NetworkCapabilities newCap = nri.request.networkCapabilities; 2115 int score = 0; 2116 2117 // Check for the best currently alive network that satisfies this request 2118 NetworkAgentInfo bestNetwork = null; 2119 for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { 2120 if (DBG) log("handleRegisterNetworkRequest checking " + network.name()); 2121 if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { 2122 if (DBG) log("apparently satisfied. currentScore=" + network.currentScore); 2123 if ((bestNetwork == null) || bestNetwork.currentScore < network.currentScore) { 2124 if (!nri.isRequest) { 2125 // Not setting bestNetwork here as a listening NetworkRequest may be 2126 // satisfied by multiple Networks. Instead the request is added to 2127 // each satisfying Network and notified about each. 2128 network.addRequest(nri.request); 2129 notifyNetworkCallback(network, nri); 2130 } else { 2131 bestNetwork = network; 2132 } 2133 } 2134 } 2135 } 2136 if (bestNetwork != null) { 2137 if (DBG) log("using " + bestNetwork.name()); 2138 if (bestNetwork.networkInfo.isConnected()) { 2139 // Cancel any lingering so the linger timeout doesn't teardown this network 2140 // even though we have a request for it. 2141 bestNetwork.networkLingered.clear(); 2142 bestNetwork.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2143 } 2144 bestNetwork.addRequest(nri.request); 2145 mNetworkForRequestId.put(nri.request.requestId, bestNetwork); 2146 notifyNetworkCallback(bestNetwork, nri); 2147 score = bestNetwork.currentScore; 2148 if (nri.request.legacyType != TYPE_NONE) { 2149 mLegacyTypeTracker.add(nri.request.legacyType, bestNetwork); 2150 } 2151 } 2152 mNetworkRequests.put(nri.request, nri); 2153 if (nri.isRequest) { 2154 if (DBG) log("sending new NetworkRequest to factories"); 2155 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2156 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 2157 0, nri.request); 2158 } 2159 } 2160 } 2161 2162 private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) { 2163 NetworkRequestInfo nri = mNetworkRequests.get(request); 2164 if (nri != null) { 2165 if (Process.SYSTEM_UID != callingUid && nri.mUid != callingUid) { 2166 if (DBG) log("Attempt to release unowned NetworkRequest " + request); 2167 return; 2168 } 2169 if (DBG) log("releasing NetworkRequest " + request); 2170 nri.unlinkDeathRecipient(); 2171 mNetworkRequests.remove(request); 2172 if (nri.isRequest) { 2173 // Find all networks that are satisfying this request and remove the request 2174 // from their request lists. 2175 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2176 if (nai.networkRequests.get(nri.request.requestId) != null) { 2177 nai.networkRequests.remove(nri.request.requestId); 2178 if (DBG) { 2179 log(" Removing from current network " + nai.name() + 2180 ", leaving " + nai.networkRequests.size() + 2181 " requests."); 2182 } 2183 // check if has any requests remaining and if not, 2184 // disconnect (unless it's a VPN). 2185 boolean keep = nai.isVPN(); 2186 for (int i = 0; i < nai.networkRequests.size() && !keep; i++) { 2187 NetworkRequest r = nai.networkRequests.valueAt(i); 2188 if (mNetworkRequests.get(r).isRequest) keep = true; 2189 } 2190 if (!keep) { 2191 if (DBG) log("no live requests for " + nai.name() + "; disconnecting"); 2192 nai.asyncChannel.disconnect(); 2193 } 2194 } 2195 } 2196 2197 // Maintain the illusion. When this request arrived, we might have preteneded 2198 // that a network connected to serve it, even though the network was already 2199 // connected. Now that this request has gone away, we might have to pretend 2200 // that the network disconnected. LegacyTypeTracker will generate that 2201 // phatom disconnect for this type. 2202 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2203 if (nai != null) { 2204 mNetworkForRequestId.remove(nri.request.requestId); 2205 if (nri.request.legacyType != TYPE_NONE) { 2206 mLegacyTypeTracker.remove(nri.request.legacyType, nai); 2207 } 2208 } 2209 2210 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2211 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 2212 nri.request); 2213 } 2214 } else { 2215 // listens don't have a singular affectedNetwork. Check all networks to see 2216 // if this listen request applies and remove it. 2217 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2218 nai.networkRequests.remove(nri.request.requestId); 2219 } 2220 } 2221 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 2222 } 2223 } 2224 2225 private class InternalHandler extends Handler { 2226 public InternalHandler(Looper looper) { 2227 super(looper); 2228 } 2229 2230 @Override 2231 public void handleMessage(Message msg) { 2232 NetworkInfo info; 2233 switch (msg.what) { 2234 case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: 2235 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 2236 String causedBy = null; 2237 synchronized (ConnectivityService.this) { 2238 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 2239 mNetTransitionWakeLock.isHeld()) { 2240 mNetTransitionWakeLock.release(); 2241 causedBy = mNetTransitionWakeLockCausedBy; 2242 } else { 2243 break; 2244 } 2245 } 2246 if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { 2247 log("Failed to find a new network - expiring NetTransition Wakelock"); 2248 } else { 2249 log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + 2250 " cleared because we found a replacement network"); 2251 } 2252 break; 2253 } 2254 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 2255 handleDeprecatedGlobalHttpProxy(); 2256 break; 2257 } 2258 case EVENT_SET_DEPENDENCY_MET: { 2259 boolean met = (msg.arg1 == ENABLED); 2260 handleSetDependencyMet(msg.arg2, met); 2261 break; 2262 } 2263 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 2264 Intent intent = (Intent)msg.obj; 2265 sendStickyBroadcast(intent); 2266 break; 2267 } 2268 case EVENT_SET_POLICY_DATA_ENABLE: { 2269 final int networkType = msg.arg1; 2270 final boolean enabled = msg.arg2 == ENABLED; 2271 handleSetPolicyDataEnable(networkType, enabled); 2272 break; 2273 } 2274 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 2275 int tag = mEnableFailFastMobileDataTag.get(); 2276 if (msg.arg1 == tag) { 2277 MobileDataStateTracker mobileDst = 2278 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2279 if (mobileDst != null) { 2280 mobileDst.setEnableFailFastMobileData(msg.arg2); 2281 } 2282 } else { 2283 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 2284 + " != tag:" + tag); 2285 } 2286 break; 2287 } 2288 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 2289 handleNetworkSamplingTimeout(); 2290 break; 2291 } 2292 case EVENT_PROXY_HAS_CHANGED: { 2293 handleApplyDefaultProxy((ProxyInfo)msg.obj); 2294 break; 2295 } 2296 case EVENT_REGISTER_NETWORK_FACTORY: { 2297 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 2298 break; 2299 } 2300 case EVENT_UNREGISTER_NETWORK_FACTORY: { 2301 handleUnregisterNetworkFactory((Messenger)msg.obj); 2302 break; 2303 } 2304 case EVENT_REGISTER_NETWORK_AGENT: { 2305 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 2306 break; 2307 } 2308 case EVENT_REGISTER_NETWORK_REQUEST: 2309 case EVENT_REGISTER_NETWORK_LISTENER: { 2310 handleRegisterNetworkRequest(msg); 2311 break; 2312 } 2313 case EVENT_RELEASE_NETWORK_REQUEST: { 2314 handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); 2315 break; 2316 } 2317 case EVENT_SYSTEM_READY: { 2318 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2319 nai.networkMonitor.systemReady = true; 2320 } 2321 break; 2322 } 2323 } 2324 } 2325 } 2326 2327 // javadoc from interface 2328 public int tether(String iface) { 2329 enforceTetherChangePermission(); 2330 2331 if (isTetheringSupported()) { 2332 return mTethering.tether(iface); 2333 } else { 2334 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2335 } 2336 } 2337 2338 // javadoc from interface 2339 public int untether(String iface) { 2340 enforceTetherChangePermission(); 2341 2342 if (isTetheringSupported()) { 2343 return mTethering.untether(iface); 2344 } else { 2345 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2346 } 2347 } 2348 2349 // javadoc from interface 2350 public int getLastTetherError(String iface) { 2351 enforceTetherAccessPermission(); 2352 2353 if (isTetheringSupported()) { 2354 return mTethering.getLastTetherError(iface); 2355 } else { 2356 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2357 } 2358 } 2359 2360 // TODO - proper iface API for selection by property, inspection, etc 2361 public String[] getTetherableUsbRegexs() { 2362 enforceTetherAccessPermission(); 2363 if (isTetheringSupported()) { 2364 return mTethering.getTetherableUsbRegexs(); 2365 } else { 2366 return new String[0]; 2367 } 2368 } 2369 2370 public String[] getTetherableWifiRegexs() { 2371 enforceTetherAccessPermission(); 2372 if (isTetheringSupported()) { 2373 return mTethering.getTetherableWifiRegexs(); 2374 } else { 2375 return new String[0]; 2376 } 2377 } 2378 2379 public String[] getTetherableBluetoothRegexs() { 2380 enforceTetherAccessPermission(); 2381 if (isTetheringSupported()) { 2382 return mTethering.getTetherableBluetoothRegexs(); 2383 } else { 2384 return new String[0]; 2385 } 2386 } 2387 2388 public int setUsbTethering(boolean enable) { 2389 enforceTetherChangePermission(); 2390 if (isTetheringSupported()) { 2391 return mTethering.setUsbTethering(enable); 2392 } else { 2393 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2394 } 2395 } 2396 2397 // TODO - move iface listing, queries, etc to new module 2398 // javadoc from interface 2399 public String[] getTetherableIfaces() { 2400 enforceTetherAccessPermission(); 2401 return mTethering.getTetherableIfaces(); 2402 } 2403 2404 public String[] getTetheredIfaces() { 2405 enforceTetherAccessPermission(); 2406 return mTethering.getTetheredIfaces(); 2407 } 2408 2409 public String[] getTetheringErroredIfaces() { 2410 enforceTetherAccessPermission(); 2411 return mTethering.getErroredIfaces(); 2412 } 2413 2414 public String[] getTetheredDhcpRanges() { 2415 enforceConnectivityInternalPermission(); 2416 return mTethering.getTetheredDhcpRanges(); 2417 } 2418 2419 // if ro.tether.denied = true we default to no tethering 2420 // gservices could set the secure setting to 1 though to enable it on a build where it 2421 // had previously been turned off. 2422 public boolean isTetheringSupported() { 2423 enforceTetherAccessPermission(); 2424 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 2425 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 2426 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0) 2427 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); 2428 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 2429 mTethering.getTetherableWifiRegexs().length != 0 || 2430 mTethering.getTetherableBluetoothRegexs().length != 0) && 2431 mTethering.getUpstreamIfaceTypes().length != 0); 2432 } 2433 2434 // Called when we lose the default network and have no replacement yet. 2435 // This will automatically be cleared after X seconds or a new default network 2436 // becomes CONNECTED, whichever happens first. The timer is started by the 2437 // first caller and not restarted by subsequent callers. 2438 private void requestNetworkTransitionWakelock(String forWhom) { 2439 int serialNum = 0; 2440 synchronized (this) { 2441 if (mNetTransitionWakeLock.isHeld()) return; 2442 serialNum = ++mNetTransitionWakeLockSerialNumber; 2443 mNetTransitionWakeLock.acquire(); 2444 mNetTransitionWakeLockCausedBy = forWhom; 2445 } 2446 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2447 EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), 2448 mNetTransitionWakeLockTimeout); 2449 return; 2450 } 2451 2452 // 100 percent is full good, 0 is full bad. 2453 public void reportInetCondition(int networkType, int percentage) { 2454 if (percentage > 50) return; // don't handle good network reports 2455 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 2456 if (nai != null) reportBadNetwork(nai.network); 2457 } 2458 2459 public void reportBadNetwork(Network network) { 2460 //TODO 2461 } 2462 2463 public ProxyInfo getProxy() { 2464 // this information is already available as a world read/writable jvm property 2465 // so this API change wouldn't have a benifit. It also breaks the passing 2466 // of proxy info to all the JVMs. 2467 // enforceAccessPermission(); 2468 synchronized (mProxyLock) { 2469 ProxyInfo ret = mGlobalProxy; 2470 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 2471 return ret; 2472 } 2473 } 2474 2475 public void setGlobalProxy(ProxyInfo proxyProperties) { 2476 enforceConnectivityInternalPermission(); 2477 2478 synchronized (mProxyLock) { 2479 if (proxyProperties == mGlobalProxy) return; 2480 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 2481 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 2482 2483 String host = ""; 2484 int port = 0; 2485 String exclList = ""; 2486 String pacFileUrl = ""; 2487 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 2488 (proxyProperties.getPacFileUrl() != null))) { 2489 if (!proxyProperties.isValid()) { 2490 if (DBG) 2491 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2492 return; 2493 } 2494 mGlobalProxy = new ProxyInfo(proxyProperties); 2495 host = mGlobalProxy.getHost(); 2496 port = mGlobalProxy.getPort(); 2497 exclList = mGlobalProxy.getExclusionListAsString(); 2498 if (proxyProperties.getPacFileUrl() != null) { 2499 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 2500 } 2501 } else { 2502 mGlobalProxy = null; 2503 } 2504 ContentResolver res = mContext.getContentResolver(); 2505 final long token = Binder.clearCallingIdentity(); 2506 try { 2507 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 2508 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 2509 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 2510 exclList); 2511 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 2512 } finally { 2513 Binder.restoreCallingIdentity(token); 2514 } 2515 } 2516 2517 if (mGlobalProxy == null) { 2518 proxyProperties = mDefaultProxy; 2519 } 2520 sendProxyBroadcast(proxyProperties); 2521 } 2522 2523 private void loadGlobalProxy() { 2524 ContentResolver res = mContext.getContentResolver(); 2525 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 2526 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 2527 String exclList = Settings.Global.getString(res, 2528 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 2529 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 2530 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 2531 ProxyInfo proxyProperties; 2532 if (!TextUtils.isEmpty(pacFileUrl)) { 2533 proxyProperties = new ProxyInfo(pacFileUrl); 2534 } else { 2535 proxyProperties = new ProxyInfo(host, port, exclList); 2536 } 2537 if (!proxyProperties.isValid()) { 2538 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2539 return; 2540 } 2541 2542 synchronized (mProxyLock) { 2543 mGlobalProxy = proxyProperties; 2544 } 2545 } 2546 } 2547 2548 public ProxyInfo getGlobalProxy() { 2549 // this information is already available as a world read/writable jvm property 2550 // so this API change wouldn't have a benifit. It also breaks the passing 2551 // of proxy info to all the JVMs. 2552 // enforceAccessPermission(); 2553 synchronized (mProxyLock) { 2554 return mGlobalProxy; 2555 } 2556 } 2557 2558 private void handleApplyDefaultProxy(ProxyInfo proxy) { 2559 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 2560 && (proxy.getPacFileUrl() == null)) { 2561 proxy = null; 2562 } 2563 synchronized (mProxyLock) { 2564 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 2565 if (mDefaultProxy == proxy) return; // catches repeated nulls 2566 if (proxy != null && !proxy.isValid()) { 2567 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 2568 return; 2569 } 2570 2571 // This call could be coming from the PacManager, containing the port of the local 2572 // proxy. If this new proxy matches the global proxy then copy this proxy to the 2573 // global (to get the correct local port), and send a broadcast. 2574 // TODO: Switch PacManager to have its own message to send back rather than 2575 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 2576 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 2577 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 2578 mGlobalProxy = proxy; 2579 sendProxyBroadcast(mGlobalProxy); 2580 return; 2581 } 2582 mDefaultProxy = proxy; 2583 2584 if (mGlobalProxy != null) return; 2585 if (!mDefaultProxyDisabled) { 2586 sendProxyBroadcast(proxy); 2587 } 2588 } 2589 } 2590 2591 private void handleDeprecatedGlobalHttpProxy() { 2592 String proxy = Settings.Global.getString(mContext.getContentResolver(), 2593 Settings.Global.HTTP_PROXY); 2594 if (!TextUtils.isEmpty(proxy)) { 2595 String data[] = proxy.split(":"); 2596 if (data.length == 0) { 2597 return; 2598 } 2599 2600 String proxyHost = data[0]; 2601 int proxyPort = 8080; 2602 if (data.length > 1) { 2603 try { 2604 proxyPort = Integer.parseInt(data[1]); 2605 } catch (NumberFormatException e) { 2606 return; 2607 } 2608 } 2609 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 2610 setGlobalProxy(p); 2611 } 2612 } 2613 2614 private void sendProxyBroadcast(ProxyInfo proxy) { 2615 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 2616 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 2617 if (DBG) log("sending Proxy Broadcast for " + proxy); 2618 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 2619 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 2620 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2621 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 2622 final long ident = Binder.clearCallingIdentity(); 2623 try { 2624 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2625 } finally { 2626 Binder.restoreCallingIdentity(ident); 2627 } 2628 } 2629 2630 private static class SettingsObserver extends ContentObserver { 2631 private int mWhat; 2632 private Handler mHandler; 2633 SettingsObserver(Handler handler, int what) { 2634 super(handler); 2635 mHandler = handler; 2636 mWhat = what; 2637 } 2638 2639 void observe(Context context) { 2640 ContentResolver resolver = context.getContentResolver(); 2641 resolver.registerContentObserver(Settings.Global.getUriFor( 2642 Settings.Global.HTTP_PROXY), false, this); 2643 } 2644 2645 @Override 2646 public void onChange(boolean selfChange) { 2647 mHandler.obtainMessage(mWhat).sendToTarget(); 2648 } 2649 } 2650 2651 private static void log(String s) { 2652 Slog.d(TAG, s); 2653 } 2654 2655 private static void loge(String s) { 2656 Slog.e(TAG, s); 2657 } 2658 2659 int convertFeatureToNetworkType(int networkType, String feature) { 2660 int usedNetworkType = networkType; 2661 2662 if(networkType == ConnectivityManager.TYPE_MOBILE) { 2663 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 2664 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 2665 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 2666 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 2667 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 2668 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 2669 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 2670 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 2671 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 2672 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 2673 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 2674 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 2675 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 2676 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 2677 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 2678 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { 2679 usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; 2680 } else { 2681 Slog.e(TAG, "Can't match any mobile netTracker!"); 2682 } 2683 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 2684 if (TextUtils.equals(feature, "p2p")) { 2685 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 2686 } else { 2687 Slog.e(TAG, "Can't match any wifi netTracker!"); 2688 } 2689 } else { 2690 Slog.e(TAG, "Unexpected network type"); 2691 } 2692 return usedNetworkType; 2693 } 2694 2695 private static <T> T checkNotNull(T value, String message) { 2696 if (value == null) { 2697 throw new NullPointerException(message); 2698 } 2699 return value; 2700 } 2701 2702 /** 2703 * Prepare for a VPN application. This method is used by VpnDialogs 2704 * and not available in ConnectivityManager. Permissions are checked 2705 * in Vpn class. 2706 * @hide 2707 */ 2708 @Override 2709 public boolean prepareVpn(String oldPackage, String newPackage) { 2710 throwIfLockdownEnabled(); 2711 int user = UserHandle.getUserId(Binder.getCallingUid()); 2712 synchronized(mVpns) { 2713 return mVpns.get(user).prepare(oldPackage, newPackage); 2714 } 2715 } 2716 2717 /** 2718 * Set whether the current VPN package has the ability to launch VPNs without 2719 * user intervention. This method is used by system UIs and not available 2720 * in ConnectivityManager. Permissions are checked in Vpn class. 2721 * @hide 2722 */ 2723 @Override 2724 public void setVpnPackageAuthorization(boolean authorized) { 2725 int user = UserHandle.getUserId(Binder.getCallingUid()); 2726 synchronized(mVpns) { 2727 mVpns.get(user).setPackageAuthorization(authorized); 2728 } 2729 } 2730 2731 /** 2732 * Configure a TUN interface and return its file descriptor. Parameters 2733 * are encoded and opaque to this class. This method is used by VpnBuilder 2734 * and not available in ConnectivityManager. Permissions are checked in 2735 * Vpn class. 2736 * @hide 2737 */ 2738 @Override 2739 public ParcelFileDescriptor establishVpn(VpnConfig config) { 2740 throwIfLockdownEnabled(); 2741 int user = UserHandle.getUserId(Binder.getCallingUid()); 2742 synchronized(mVpns) { 2743 return mVpns.get(user).establish(config); 2744 } 2745 } 2746 2747 /** 2748 * Start legacy VPN, controlling native daemons as needed. Creates a 2749 * secondary thread to perform connection work, returning quickly. 2750 */ 2751 @Override 2752 public void startLegacyVpn(VpnProfile profile) { 2753 throwIfLockdownEnabled(); 2754 final LinkProperties egress = getActiveLinkProperties(); 2755 if (egress == null) { 2756 throw new IllegalStateException("Missing active network connection"); 2757 } 2758 int user = UserHandle.getUserId(Binder.getCallingUid()); 2759 synchronized(mVpns) { 2760 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 2761 } 2762 } 2763 2764 /** 2765 * Return the information of the ongoing legacy VPN. This method is used 2766 * by VpnSettings and not available in ConnectivityManager. Permissions 2767 * are checked in Vpn class. 2768 * @hide 2769 */ 2770 @Override 2771 public LegacyVpnInfo getLegacyVpnInfo() { 2772 throwIfLockdownEnabled(); 2773 int user = UserHandle.getUserId(Binder.getCallingUid()); 2774 synchronized(mVpns) { 2775 return mVpns.get(user).getLegacyVpnInfo(); 2776 } 2777 } 2778 2779 /** 2780 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 2781 * not available in ConnectivityManager. 2782 * Permissions are checked in Vpn class. 2783 * @hide 2784 */ 2785 @Override 2786 public VpnConfig getVpnConfig() { 2787 int user = UserHandle.getUserId(Binder.getCallingUid()); 2788 synchronized(mVpns) { 2789 return mVpns.get(user).getVpnConfig(); 2790 } 2791 } 2792 2793 @Override 2794 public boolean updateLockdownVpn() { 2795 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 2796 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 2797 return false; 2798 } 2799 2800 // Tear down existing lockdown if profile was removed 2801 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 2802 if (mLockdownEnabled) { 2803 if (!mKeyStore.isUnlocked()) { 2804 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 2805 return false; 2806 } 2807 2808 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 2809 final VpnProfile profile = VpnProfile.decode( 2810 profileName, mKeyStore.get(Credentials.VPN + profileName)); 2811 int user = UserHandle.getUserId(Binder.getCallingUid()); 2812 synchronized(mVpns) { 2813 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 2814 profile)); 2815 } 2816 } else { 2817 setLockdownTracker(null); 2818 } 2819 2820 return true; 2821 } 2822 2823 /** 2824 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 2825 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 2826 */ 2827 private void setLockdownTracker(LockdownVpnTracker tracker) { 2828 // Shutdown any existing tracker 2829 final LockdownVpnTracker existing = mLockdownTracker; 2830 mLockdownTracker = null; 2831 if (existing != null) { 2832 existing.shutdown(); 2833 } 2834 2835 try { 2836 if (tracker != null) { 2837 mNetd.setFirewallEnabled(true); 2838 mNetd.setFirewallInterfaceRule("lo", true); 2839 mLockdownTracker = tracker; 2840 mLockdownTracker.init(); 2841 } else { 2842 mNetd.setFirewallEnabled(false); 2843 } 2844 } catch (RemoteException e) { 2845 // ignored; NMS lives inside system_server 2846 } 2847 } 2848 2849 private void throwIfLockdownEnabled() { 2850 if (mLockdownEnabled) { 2851 throw new IllegalStateException("Unavailable in lockdown mode"); 2852 } 2853 } 2854 2855 public void supplyMessenger(int networkType, Messenger messenger) { 2856 enforceConnectivityInternalPermission(); 2857 2858 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 2859 mNetTrackers[networkType].supplyMessenger(messenger); 2860 } 2861 } 2862 2863 public int findConnectionTypeForIface(String iface) { 2864 enforceConnectivityInternalPermission(); 2865 2866 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 2867 2868 synchronized(mNetworkForNetId) { 2869 for (int i = 0; i < mNetworkForNetId.size(); i++) { 2870 NetworkAgentInfo nai = mNetworkForNetId.valueAt(i); 2871 LinkProperties lp = nai.linkProperties; 2872 if (lp != null && iface.equals(lp.getInterfaceName()) && nai.networkInfo != null) { 2873 return nai.networkInfo.getType(); 2874 } 2875 } 2876 } 2877 return ConnectivityManager.TYPE_NONE; 2878 } 2879 2880 /** 2881 * Have mobile data fail fast if enabled. 2882 * 2883 * @param enabled DctConstants.ENABLED/DISABLED 2884 */ 2885 private void setEnableFailFastMobileData(int enabled) { 2886 int tag; 2887 2888 if (enabled == DctConstants.ENABLED) { 2889 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 2890 } else { 2891 tag = mEnableFailFastMobileDataTag.get(); 2892 } 2893 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 2894 enabled)); 2895 } 2896 2897 private boolean isMobileDataStateTrackerReady() { 2898 MobileDataStateTracker mdst = 2899 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 2900 return (mdst != null) && (mdst.isReady()); 2901 } 2902 2903 /** 2904 * The ResultReceiver resultCode for checkMobileProvisioning (CMP_RESULT_CODE) 2905 */ 2906 2907 /** 2908 * No connection was possible to the network. 2909 * This is NOT a warm sim. 2910 */ 2911 private static final int CMP_RESULT_CODE_NO_CONNECTION = 0; 2912 2913 /** 2914 * A connection was made to the internet, all is well. 2915 * This is NOT a warm sim. 2916 */ 2917 private static final int CMP_RESULT_CODE_CONNECTABLE = 1; 2918 2919 /** 2920 * A connection was made but no dns server was available to resolve a name to address. 2921 * This is NOT a warm sim since provisioning network is supported. 2922 */ 2923 private static final int CMP_RESULT_CODE_NO_DNS = 2; 2924 2925 /** 2926 * A connection was made but could not open a TCP connection. 2927 * This is NOT a warm sim since provisioning network is supported. 2928 */ 2929 private static final int CMP_RESULT_CODE_NO_TCP_CONNECTION = 3; 2930 2931 /** 2932 * A connection was made but there was a redirection, we appear to be in walled garden. 2933 * This is an indication of a warm sim on a mobile network such as T-Mobile. 2934 */ 2935 private static final int CMP_RESULT_CODE_REDIRECTED = 4; 2936 2937 /** 2938 * The mobile network is a provisioning network. 2939 * This is an indication of a warm sim on a mobile network such as AT&T. 2940 */ 2941 private static final int CMP_RESULT_CODE_PROVISIONING_NETWORK = 5; 2942 2943 /** 2944 * The mobile network is provisioning 2945 */ 2946 private static final int CMP_RESULT_CODE_IS_PROVISIONING = 6; 2947 2948 private AtomicBoolean mIsProvisioningNetwork = new AtomicBoolean(false); 2949 private AtomicBoolean mIsStartingProvisioning = new AtomicBoolean(false); 2950 2951 private AtomicBoolean mIsCheckingMobileProvisioning = new AtomicBoolean(false); 2952 2953 @Override 2954 public int checkMobileProvisioning(int suggestedTimeOutMs) { 2955 int timeOutMs = -1; 2956 if (DBG) log("checkMobileProvisioning: E suggestedTimeOutMs=" + suggestedTimeOutMs); 2957 enforceConnectivityInternalPermission(); 2958 2959 final long token = Binder.clearCallingIdentity(); 2960 try { 2961 timeOutMs = suggestedTimeOutMs; 2962 if (suggestedTimeOutMs > CheckMp.MAX_TIMEOUT_MS) { 2963 timeOutMs = CheckMp.MAX_TIMEOUT_MS; 2964 } 2965 2966 // Check that mobile networks are supported 2967 if (!isNetworkSupported(ConnectivityManager.TYPE_MOBILE) 2968 || !isNetworkSupported(ConnectivityManager.TYPE_MOBILE_HIPRI)) { 2969 if (DBG) log("checkMobileProvisioning: X no mobile network"); 2970 return timeOutMs; 2971 } 2972 2973 // If we're already checking don't do it again 2974 // TODO: Add a queue of results... 2975 if (mIsCheckingMobileProvisioning.getAndSet(true)) { 2976 if (DBG) log("checkMobileProvisioning: X already checking ignore for the moment"); 2977 return timeOutMs; 2978 } 2979 2980 // Start off with mobile notification off 2981 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 2982 2983 CheckMp checkMp = new CheckMp(mContext, this); 2984 CheckMp.CallBack cb = new CheckMp.CallBack() { 2985 @Override 2986 void onComplete(Integer result) { 2987 if (DBG) log("CheckMp.onComplete: result=" + result); 2988 NetworkInfo ni = 2989 mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI].getNetworkInfo(); 2990 switch(result) { 2991 case CMP_RESULT_CODE_CONNECTABLE: 2992 case CMP_RESULT_CODE_NO_CONNECTION: 2993 case CMP_RESULT_CODE_NO_DNS: 2994 case CMP_RESULT_CODE_NO_TCP_CONNECTION: { 2995 if (DBG) log("CheckMp.onComplete: ignore, connected or no connection"); 2996 break; 2997 } 2998 case CMP_RESULT_CODE_REDIRECTED: { 2999 if (DBG) log("CheckMp.onComplete: warm sim"); 3000 String url = getMobileProvisioningUrl(); 3001 if (TextUtils.isEmpty(url)) { 3002 url = getMobileRedirectedProvisioningUrl(); 3003 } 3004 if (TextUtils.isEmpty(url) == false) { 3005 if (DBG) log("CheckMp.onComplete: warm (redirected), url=" + url); 3006 setProvNotificationVisible(true, 3007 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 3008 url); 3009 } else { 3010 if (DBG) log("CheckMp.onComplete: warm (redirected), no url"); 3011 } 3012 break; 3013 } 3014 case CMP_RESULT_CODE_PROVISIONING_NETWORK: { 3015 String url = getMobileProvisioningUrl(); 3016 if (TextUtils.isEmpty(url) == false) { 3017 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), url=" + url); 3018 setProvNotificationVisible(true, 3019 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 3020 url); 3021 // Mark that we've got a provisioning network and 3022 // Disable Mobile Data until user actually starts provisioning. 3023 mIsProvisioningNetwork.set(true); 3024 MobileDataStateTracker mdst = (MobileDataStateTracker) 3025 mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3026 3027 // Disable radio until user starts provisioning 3028 mdst.setRadio(false); 3029 } else { 3030 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), no url"); 3031 } 3032 break; 3033 } 3034 case CMP_RESULT_CODE_IS_PROVISIONING: { 3035 // FIXME: Need to know when provisioning is done. Probably we can 3036 // check the completion status if successful we're done if we 3037 // "timedout" or still connected to provisioning APN turn off data? 3038 if (DBG) log("CheckMp.onComplete: provisioning started"); 3039 mIsStartingProvisioning.set(false); 3040 break; 3041 } 3042 default: { 3043 loge("CheckMp.onComplete: ignore unexpected result=" + result); 3044 break; 3045 } 3046 } 3047 mIsCheckingMobileProvisioning.set(false); 3048 } 3049 }; 3050 CheckMp.Params params = 3051 new CheckMp.Params(checkMp.getDefaultUrl(), timeOutMs, cb); 3052 if (DBG) log("checkMobileProvisioning: params=" + params); 3053 // TODO: Reenable when calls to the now defunct 3054 // MobileDataStateTracker.isProvisioningNetwork() are removed. 3055 // This code should be moved to the Telephony code. 3056 // checkMp.execute(params); 3057 } finally { 3058 Binder.restoreCallingIdentity(token); 3059 if (DBG) log("checkMobileProvisioning: X"); 3060 } 3061 return timeOutMs; 3062 } 3063 3064 static class CheckMp extends 3065 AsyncTask<CheckMp.Params, Void, Integer> { 3066 private static final String CHECKMP_TAG = "CheckMp"; 3067 3068 // adb shell setprop persist.checkmp.testfailures 1 to enable testing failures 3069 private static boolean mTestingFailures; 3070 3071 // Choosing 4 loops as half of them will use HTTPS and the other half HTTP 3072 private static final int MAX_LOOPS = 4; 3073 3074 // Number of milli-seconds to complete all of the retires 3075 public static final int MAX_TIMEOUT_MS = 60000; 3076 3077 // The socket should retry only 5 seconds, the default is longer 3078 private static final int SOCKET_TIMEOUT_MS = 5000; 3079 3080 // Sleep time for network errors 3081 private static final int NET_ERROR_SLEEP_SEC = 3; 3082 3083 // Sleep time for network route establishment 3084 private static final int NET_ROUTE_ESTABLISHMENT_SLEEP_SEC = 3; 3085 3086 // Short sleep time for polling :( 3087 private static final int POLLING_SLEEP_SEC = 1; 3088 3089 private Context mContext; 3090 private ConnectivityService mCs; 3091 private TelephonyManager mTm; 3092 private Params mParams; 3093 3094 /** 3095 * Parameters for AsyncTask.execute 3096 */ 3097 static class Params { 3098 private String mUrl; 3099 private long mTimeOutMs; 3100 private CallBack mCb; 3101 3102 Params(String url, long timeOutMs, CallBack cb) { 3103 mUrl = url; 3104 mTimeOutMs = timeOutMs; 3105 mCb = cb; 3106 } 3107 3108 @Override 3109 public String toString() { 3110 return "{" + " url=" + mUrl + " mTimeOutMs=" + mTimeOutMs + " mCb=" + mCb + "}"; 3111 } 3112 } 3113 3114 // As explained to me by Brian Carlstrom and Kenny Root, Certificates can be 3115 // issued by name or ip address, for Google its by name so when we construct 3116 // this HostnameVerifier we'll pass the original Uri and use it to verify 3117 // the host. If the host name in the original uril fails we'll test the 3118 // hostname parameter just incase things change. 3119 static class CheckMpHostnameVerifier implements HostnameVerifier { 3120 Uri mOrgUri; 3121 3122 CheckMpHostnameVerifier(Uri orgUri) { 3123 mOrgUri = orgUri; 3124 } 3125 3126 @Override 3127 public boolean verify(String hostname, SSLSession session) { 3128 HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier(); 3129 String orgUriHost = mOrgUri.getHost(); 3130 boolean retVal = hv.verify(orgUriHost, session) || hv.verify(hostname, session); 3131 if (DBG) { 3132 log("isMobileOk: hostnameVerify retVal=" + retVal + " hostname=" + hostname 3133 + " orgUriHost=" + orgUriHost); 3134 } 3135 return retVal; 3136 } 3137 } 3138 3139 /** 3140 * The call back object passed in Params. onComplete will be called 3141 * on the main thread. 3142 */ 3143 abstract static class CallBack { 3144 // Called on the main thread. 3145 abstract void onComplete(Integer result); 3146 } 3147 3148 public CheckMp(Context context, ConnectivityService cs) { 3149 if (Build.IS_DEBUGGABLE) { 3150 mTestingFailures = 3151 SystemProperties.getInt("persist.checkmp.testfailures", 0) == 1; 3152 } else { 3153 mTestingFailures = false; 3154 } 3155 3156 mContext = context; 3157 mCs = cs; 3158 3159 // Setup access to TelephonyService we'll be using. 3160 mTm = (TelephonyManager) mContext.getSystemService( 3161 Context.TELEPHONY_SERVICE); 3162 } 3163 3164 /** 3165 * Get the default url to use for the test. 3166 */ 3167 public String getDefaultUrl() { 3168 // See http://go/clientsdns for usage approval 3169 String server = Settings.Global.getString(mContext.getContentResolver(), 3170 Settings.Global.CAPTIVE_PORTAL_SERVER); 3171 if (server == null) { 3172 server = "clients3.google.com"; 3173 } 3174 return "http://" + server + "/generate_204"; 3175 } 3176 3177 /** 3178 * Detect if its possible to connect to the http url. DNS based detection techniques 3179 * do not work at all hotspots. The best way to check is to perform a request to 3180 * a known address that fetches the data we expect. 3181 */ 3182 private synchronized Integer isMobileOk(Params params) { 3183 Integer result = CMP_RESULT_CODE_NO_CONNECTION; 3184 Uri orgUri = Uri.parse(params.mUrl); 3185 Random rand = new Random(); 3186 mParams = params; 3187 3188 if (mCs.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false) { 3189 result = CMP_RESULT_CODE_NO_CONNECTION; 3190 log("isMobileOk: X not mobile capable result=" + result); 3191 return result; 3192 } 3193 3194 if (mCs.mIsStartingProvisioning.get()) { 3195 result = CMP_RESULT_CODE_IS_PROVISIONING; 3196 log("isMobileOk: X is provisioning result=" + result); 3197 return result; 3198 } 3199 3200 // See if we've already determined we've got a provisioning connection, 3201 // if so we don't need to do anything active. 3202 MobileDataStateTracker mdstDefault = (MobileDataStateTracker) 3203 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3204 boolean isDefaultProvisioning = mdstDefault.isProvisioningNetwork(); 3205 log("isMobileOk: isDefaultProvisioning=" + isDefaultProvisioning); 3206 3207 MobileDataStateTracker mdstHipri = (MobileDataStateTracker) 3208 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3209 boolean isHipriProvisioning = mdstHipri.isProvisioningNetwork(); 3210 log("isMobileOk: isHipriProvisioning=" + isHipriProvisioning); 3211 3212 if (isDefaultProvisioning || isHipriProvisioning) { 3213 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3214 log("isMobileOk: X default || hipri is provisioning result=" + result); 3215 return result; 3216 } 3217 3218 try { 3219 // Continue trying to connect until time has run out 3220 long endTime = SystemClock.elapsedRealtime() + params.mTimeOutMs; 3221 3222 if (!mCs.isMobileDataStateTrackerReady()) { 3223 // Wait for MobileDataStateTracker to be ready. 3224 if (DBG) log("isMobileOk: mdst is not ready"); 3225 while(SystemClock.elapsedRealtime() < endTime) { 3226 if (mCs.isMobileDataStateTrackerReady()) { 3227 // Enable fail fast as we'll do retries here and use a 3228 // hipri connection so the default connection stays active. 3229 if (DBG) log("isMobileOk: mdst ready, enable fail fast of mobile data"); 3230 mCs.setEnableFailFastMobileData(DctConstants.ENABLED); 3231 break; 3232 } 3233 sleep(POLLING_SLEEP_SEC); 3234 } 3235 } 3236 3237 log("isMobileOk: start hipri url=" + params.mUrl); 3238 3239 // First wait until we can start using hipri 3240 Binder binder = new Binder(); 3241/* 3242 while(SystemClock.elapsedRealtime() < endTime) { 3243 int ret = mCs.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3244 Phone.FEATURE_ENABLE_HIPRI, binder); 3245 if ((ret == PhoneConstants.APN_ALREADY_ACTIVE) 3246 || (ret == PhoneConstants.APN_REQUEST_STARTED)) { 3247 log("isMobileOk: hipri started"); 3248 break; 3249 } 3250 if (VDBG) log("isMobileOk: hipri not started yet"); 3251 result = CMP_RESULT_CODE_NO_CONNECTION; 3252 sleep(POLLING_SLEEP_SEC); 3253 } 3254*/ 3255 // Continue trying to connect until time has run out 3256 while(SystemClock.elapsedRealtime() < endTime) { 3257 try { 3258 // Wait for hipri to connect. 3259 // TODO: Don't poll and handle situation where hipri fails 3260 // because default is retrying. See b/9569540 3261 NetworkInfo.State state = mCs 3262 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3263 if (state != NetworkInfo.State.CONNECTED) { 3264 if (true/*VDBG*/) { 3265 log("isMobileOk: not connected ni=" + 3266 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3267 } 3268 sleep(POLLING_SLEEP_SEC); 3269 result = CMP_RESULT_CODE_NO_CONNECTION; 3270 continue; 3271 } 3272 3273 // Hipri has started check if this is a provisioning url 3274 MobileDataStateTracker mdst = (MobileDataStateTracker) 3275 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3276 if (mdst.isProvisioningNetwork()) { 3277 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3278 if (DBG) log("isMobileOk: X isProvisioningNetwork result=" + result); 3279 return result; 3280 } else { 3281 if (DBG) log("isMobileOk: isProvisioningNetwork is false, continue"); 3282 } 3283 3284 // Get of the addresses associated with the url host. We need to use the 3285 // address otherwise HttpURLConnection object will use the name to get 3286 // the addresses and will try every address but that will bypass the 3287 // route to host we setup and the connection could succeed as the default 3288 // interface might be connected to the internet via wifi or other interface. 3289 InetAddress[] addresses; 3290 try { 3291 addresses = InetAddress.getAllByName(orgUri.getHost()); 3292 } catch (UnknownHostException e) { 3293 result = CMP_RESULT_CODE_NO_DNS; 3294 log("isMobileOk: X UnknownHostException result=" + result); 3295 return result; 3296 } 3297 log("isMobileOk: addresses=" + inetAddressesToString(addresses)); 3298 3299 // Get the type of addresses supported by this link 3300 LinkProperties lp = mCs.getLinkPropertiesForTypeInternal( 3301 ConnectivityManager.TYPE_MOBILE_HIPRI); 3302 boolean linkHasIpv4 = lp.hasIPv4Address(); 3303 boolean linkHasIpv6 = lp.hasGlobalIPv6Address(); 3304 log("isMobileOk: linkHasIpv4=" + linkHasIpv4 3305 + " linkHasIpv6=" + linkHasIpv6); 3306 3307 final ArrayList<InetAddress> validAddresses = 3308 new ArrayList<InetAddress>(addresses.length); 3309 3310 for (InetAddress addr : addresses) { 3311 if (((addr instanceof Inet4Address) && linkHasIpv4) || 3312 ((addr instanceof Inet6Address) && linkHasIpv6)) { 3313 validAddresses.add(addr); 3314 } 3315 } 3316 3317 if (validAddresses.size() == 0) { 3318 return CMP_RESULT_CODE_NO_CONNECTION; 3319 } 3320 3321 int addrTried = 0; 3322 while (true) { 3323 // Loop through at most MAX_LOOPS valid addresses or until 3324 // we run out of time 3325 if (addrTried++ >= MAX_LOOPS) { 3326 log("isMobileOk: too many loops tried - giving up"); 3327 break; 3328 } 3329 if (SystemClock.elapsedRealtime() >= endTime) { 3330 log("isMobileOk: spend too much time - giving up"); 3331 break; 3332 } 3333 3334 InetAddress hostAddr = validAddresses.get(rand.nextInt( 3335 validAddresses.size())); 3336 3337 // Make a route to host so we check the specific interface. 3338 if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI, 3339 hostAddr.getAddress())) { 3340 // Wait a short time to be sure the route is established ?? 3341 log("isMobileOk:" 3342 + " wait to establish route to hostAddr=" + hostAddr); 3343 sleep(NET_ROUTE_ESTABLISHMENT_SLEEP_SEC); 3344 } else { 3345 log("isMobileOk:" 3346 + " could not establish route to hostAddr=" + hostAddr); 3347 // Wait a short time before the next attempt 3348 sleep(NET_ERROR_SLEEP_SEC); 3349 continue; 3350 } 3351 3352 // Rewrite the url to have numeric address to use the specific route 3353 // using http for half the attempts and https for the other half. 3354 // Doing https first and http second as on a redirected walled garden 3355 // such as t-mobile uses we get a SocketTimeoutException: "SSL 3356 // handshake timed out" which we declare as 3357 // CMP_RESULT_CODE_NO_TCP_CONNECTION. We could change this, but by 3358 // having http second we will be using logic used for some time. 3359 URL newUrl; 3360 String scheme = (addrTried <= (MAX_LOOPS/2)) ? "https" : "http"; 3361 newUrl = new URL(scheme, hostAddr.getHostAddress(), 3362 orgUri.getPath()); 3363 log("isMobileOk: newUrl=" + newUrl); 3364 3365 HttpURLConnection urlConn = null; 3366 try { 3367 // Open the connection set the request headers and get the response 3368 urlConn = (HttpURLConnection)newUrl.openConnection( 3369 java.net.Proxy.NO_PROXY); 3370 if (scheme.equals("https")) { 3371 ((HttpsURLConnection)urlConn).setHostnameVerifier( 3372 new CheckMpHostnameVerifier(orgUri)); 3373 } 3374 urlConn.setInstanceFollowRedirects(false); 3375 urlConn.setConnectTimeout(SOCKET_TIMEOUT_MS); 3376 urlConn.setReadTimeout(SOCKET_TIMEOUT_MS); 3377 urlConn.setUseCaches(false); 3378 urlConn.setAllowUserInteraction(false); 3379 // Set the "Connection" to "Close" as by default "Keep-Alive" 3380 // is used which is useless in this case. 3381 urlConn.setRequestProperty("Connection", "close"); 3382 int responseCode = urlConn.getResponseCode(); 3383 3384 // For debug display the headers 3385 Map<String, List<String>> headers = urlConn.getHeaderFields(); 3386 log("isMobileOk: headers=" + headers); 3387 3388 // Close the connection 3389 urlConn.disconnect(); 3390 urlConn = null; 3391 3392 if (mTestingFailures) { 3393 // Pretend no connection, this tests using http and https 3394 result = CMP_RESULT_CODE_NO_CONNECTION; 3395 log("isMobileOk: TESTING_FAILURES, pretend no connction"); 3396 continue; 3397 } 3398 3399 if (responseCode == 204) { 3400 // Return 3401 result = CMP_RESULT_CODE_CONNECTABLE; 3402 log("isMobileOk: X got expected responseCode=" + responseCode 3403 + " result=" + result); 3404 return result; 3405 } else { 3406 // Retry to be sure this was redirected, we've gotten 3407 // occasions where a server returned 200 even though 3408 // the device didn't have a "warm" sim. 3409 log("isMobileOk: not expected responseCode=" + responseCode); 3410 // TODO - it would be nice in the single-address case to do 3411 // another DNS resolve here, but flushing the cache is a bit 3412 // heavy-handed. 3413 result = CMP_RESULT_CODE_REDIRECTED; 3414 } 3415 } catch (Exception e) { 3416 log("isMobileOk: HttpURLConnection Exception" + e); 3417 result = CMP_RESULT_CODE_NO_TCP_CONNECTION; 3418 if (urlConn != null) { 3419 urlConn.disconnect(); 3420 urlConn = null; 3421 } 3422 sleep(NET_ERROR_SLEEP_SEC); 3423 continue; 3424 } 3425 } 3426 log("isMobileOk: X loops|timed out result=" + result); 3427 return result; 3428 } catch (Exception e) { 3429 log("isMobileOk: Exception e=" + e); 3430 continue; 3431 } 3432 } 3433 log("isMobileOk: timed out"); 3434 } finally { 3435 log("isMobileOk: F stop hipri"); 3436 mCs.setEnableFailFastMobileData(DctConstants.DISABLED); 3437// mCs.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3438// Phone.FEATURE_ENABLE_HIPRI); 3439 3440 // Wait for hipri to disconnect. 3441 long endTime = SystemClock.elapsedRealtime() + 5000; 3442 3443 while(SystemClock.elapsedRealtime() < endTime) { 3444 NetworkInfo.State state = mCs 3445 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3446 if (state != NetworkInfo.State.DISCONNECTED) { 3447 if (VDBG) { 3448 log("isMobileOk: connected ni=" + 3449 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3450 } 3451 sleep(POLLING_SLEEP_SEC); 3452 continue; 3453 } 3454 } 3455 3456 log("isMobileOk: X result=" + result); 3457 } 3458 return result; 3459 } 3460 3461 @Override 3462 protected Integer doInBackground(Params... params) { 3463 return isMobileOk(params[0]); 3464 } 3465 3466 @Override 3467 protected void onPostExecute(Integer result) { 3468 log("onPostExecute: result=" + result); 3469 if ((mParams != null) && (mParams.mCb != null)) { 3470 mParams.mCb.onComplete(result); 3471 } 3472 } 3473 3474 private String inetAddressesToString(InetAddress[] addresses) { 3475 StringBuffer sb = new StringBuffer(); 3476 boolean firstTime = true; 3477 for(InetAddress addr : addresses) { 3478 if (firstTime) { 3479 firstTime = false; 3480 } else { 3481 sb.append(","); 3482 } 3483 sb.append(addr); 3484 } 3485 return sb.toString(); 3486 } 3487 3488 private void printNetworkInfo() { 3489 boolean hasIccCard = mTm.hasIccCard(); 3490 int simState = mTm.getSimState(); 3491 log("hasIccCard=" + hasIccCard 3492 + " simState=" + simState); 3493 NetworkInfo[] ni = mCs.getAllNetworkInfo(); 3494 if (ni != null) { 3495 log("ni.length=" + ni.length); 3496 for (NetworkInfo netInfo: ni) { 3497 log("netInfo=" + netInfo.toString()); 3498 } 3499 } else { 3500 log("no network info ni=null"); 3501 } 3502 } 3503 3504 /** 3505 * Sleep for a few seconds then return. 3506 * @param seconds 3507 */ 3508 private static void sleep(int seconds) { 3509 long stopTime = System.nanoTime() + (seconds * 1000000000); 3510 long sleepTime; 3511 while ((sleepTime = stopTime - System.nanoTime()) > 0) { 3512 try { 3513 Thread.sleep(sleepTime / 1000000); 3514 } catch (InterruptedException ignored) { 3515 } 3516 } 3517 } 3518 3519 private static void log(String s) { 3520 Slog.d(ConnectivityService.TAG, "[" + CHECKMP_TAG + "] " + s); 3521 } 3522 } 3523 3524 // TODO: Move to ConnectivityManager and make public? 3525 private static final String CONNECTED_TO_PROVISIONING_NETWORK_ACTION = 3526 "com.android.server.connectivityservice.CONNECTED_TO_PROVISIONING_NETWORK_ACTION"; 3527 3528 private BroadcastReceiver mProvisioningReceiver = new BroadcastReceiver() { 3529 @Override 3530 public void onReceive(Context context, Intent intent) { 3531 if (intent.getAction().equals(CONNECTED_TO_PROVISIONING_NETWORK_ACTION)) { 3532 handleMobileProvisioningAction(intent.getStringExtra("EXTRA_URL")); 3533 } 3534 } 3535 }; 3536 3537 private void handleMobileProvisioningAction(String url) { 3538 // Mark notification as not visible 3539 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3540 3541 // Check airplane mode 3542 boolean isAirplaneModeOn = Settings.System.getInt(mContext.getContentResolver(), 3543 Settings.Global.AIRPLANE_MODE_ON, 0) == 1; 3544 // If provisioning network and not in airplane mode handle as a special case, 3545 // otherwise launch browser with the intent directly. 3546 if (mIsProvisioningNetwork.get() && !isAirplaneModeOn) { 3547 if (DBG) log("handleMobileProvisioningAction: on prov network enable then launch"); 3548 mIsProvisioningNetwork.set(false); 3549// mIsStartingProvisioning.set(true); 3550// MobileDataStateTracker mdst = (MobileDataStateTracker) 3551// mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3552 // Radio was disabled on CMP_RESULT_CODE_PROVISIONING_NETWORK, enable it here 3553// mdst.setRadio(true); 3554// mdst.setEnableFailFastMobileData(DctConstants.ENABLED); 3555// mdst.enableMobileProvisioning(url); 3556 } else { 3557 if (DBG) log("handleMobileProvisioningAction: not prov network"); 3558 mIsProvisioningNetwork.set(false); 3559 // Check for apps that can handle provisioning first 3560 Intent provisioningIntent = new Intent(TelephonyIntents.ACTION_CARRIER_SETUP); 3561 List<String> carrierPackages = 3562 mTelephonyManager.getCarrierPackageNamesForBroadcastIntent(provisioningIntent); 3563 if (carrierPackages != null && !carrierPackages.isEmpty()) { 3564 if (carrierPackages.size() != 1) { 3565 if (DBG) log("Multiple matching carrier apps found, launching the first."); 3566 } 3567 provisioningIntent.setPackage(carrierPackages.get(0)); 3568 provisioningIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3569 Intent.FLAG_ACTIVITY_NEW_TASK); 3570 mContext.startActivity(provisioningIntent); 3571 } else { 3572 // If no apps exist, use standard URL ACTION_VIEW method 3573 Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, 3574 Intent.CATEGORY_APP_BROWSER); 3575 newIntent.setData(Uri.parse(url)); 3576 newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3577 Intent.FLAG_ACTIVITY_NEW_TASK); 3578 try { 3579 mContext.startActivity(newIntent); 3580 } catch (ActivityNotFoundException e) { 3581 loge("handleMobileProvisioningAction: startActivity failed" + e); 3582 } 3583 } 3584 } 3585 } 3586 3587 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 3588 private volatile boolean mIsNotificationVisible = false; 3589 3590 private void setProvNotificationVisible(boolean visible, int networkType, String extraInfo, 3591 String url) { 3592 if (DBG) { 3593 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 3594 + " extraInfo=" + extraInfo + " url=" + url); 3595 } 3596 Intent intent = null; 3597 PendingIntent pendingIntent = null; 3598 if (visible) { 3599 switch (networkType) { 3600 case ConnectivityManager.TYPE_WIFI: 3601 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3602 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3603 Intent.FLAG_ACTIVITY_NEW_TASK); 3604 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3605 break; 3606 case ConnectivityManager.TYPE_MOBILE: 3607 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3608 intent = new Intent(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 3609 intent.putExtra("EXTRA_URL", url); 3610 intent.setFlags(0); 3611 pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 3612 break; 3613 default: 3614 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3615 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3616 Intent.FLAG_ACTIVITY_NEW_TASK); 3617 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3618 break; 3619 } 3620 } 3621 // Concatenate the range of types onto the range of NetIDs. 3622 int id = MAX_NET_ID + 1 + (networkType - ConnectivityManager.TYPE_NONE); 3623 setProvNotificationVisibleIntent(visible, id, networkType, extraInfo, pendingIntent); 3624 } 3625 3626 /** 3627 * Show or hide network provisioning notificaitons. 3628 * 3629 * @param id an identifier that uniquely identifies this notification. This must match 3630 * between show and hide calls. We use the NetID value but for legacy callers 3631 * we concatenate the range of types with the range of NetIDs. 3632 */ 3633 private void setProvNotificationVisibleIntent(boolean visible, int id, int networkType, 3634 String extraInfo, PendingIntent intent) { 3635 if (DBG) { 3636 log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + 3637 networkType + " extraInfo=" + extraInfo); 3638 } 3639 3640 Resources r = Resources.getSystem(); 3641 NotificationManager notificationManager = (NotificationManager) mContext 3642 .getSystemService(Context.NOTIFICATION_SERVICE); 3643 3644 if (visible) { 3645 CharSequence title; 3646 CharSequence details; 3647 int icon; 3648 Notification notification = new Notification(); 3649 switch (networkType) { 3650 case ConnectivityManager.TYPE_WIFI: 3651 title = r.getString(R.string.wifi_available_sign_in, 0); 3652 details = r.getString(R.string.network_available_sign_in_detailed, 3653 extraInfo); 3654 icon = R.drawable.stat_notify_wifi_in_range; 3655 break; 3656 case ConnectivityManager.TYPE_MOBILE: 3657 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3658 title = r.getString(R.string.network_available_sign_in, 0); 3659 // TODO: Change this to pull from NetworkInfo once a printable 3660 // name has been added to it 3661 details = mTelephonyManager.getNetworkOperatorName(); 3662 icon = R.drawable.stat_notify_rssi_in_range; 3663 break; 3664 default: 3665 title = r.getString(R.string.network_available_sign_in, 0); 3666 details = r.getString(R.string.network_available_sign_in_detailed, 3667 extraInfo); 3668 icon = R.drawable.stat_notify_rssi_in_range; 3669 break; 3670 } 3671 3672 notification.when = 0; 3673 notification.icon = icon; 3674 notification.flags = Notification.FLAG_AUTO_CANCEL; 3675 notification.tickerText = title; 3676 notification.color = mContext.getResources().getColor( 3677 com.android.internal.R.color.system_notification_accent_color); 3678 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 3679 notification.contentIntent = intent; 3680 3681 try { 3682 notificationManager.notify(NOTIFICATION_ID, id, notification); 3683 } catch (NullPointerException npe) { 3684 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 3685 npe.printStackTrace(); 3686 } 3687 } else { 3688 try { 3689 notificationManager.cancel(NOTIFICATION_ID, id); 3690 } catch (NullPointerException npe) { 3691 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 3692 npe.printStackTrace(); 3693 } 3694 } 3695 mIsNotificationVisible = visible; 3696 } 3697 3698 /** Location to an updatable file listing carrier provisioning urls. 3699 * An example: 3700 * 3701 * <?xml version="1.0" encoding="utf-8"?> 3702 * <provisioningUrls> 3703 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 3704 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 3705 * </provisioningUrls> 3706 */ 3707 private static final String PROVISIONING_URL_PATH = 3708 "/data/misc/radio/provisioning_urls.xml"; 3709 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 3710 3711 /** XML tag for root element. */ 3712 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 3713 /** XML tag for individual url */ 3714 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 3715 /** XML tag for redirected url */ 3716 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 3717 /** XML attribute for mcc */ 3718 private static final String ATTR_MCC = "mcc"; 3719 /** XML attribute for mnc */ 3720 private static final String ATTR_MNC = "mnc"; 3721 3722 private static final int REDIRECTED_PROVISIONING = 1; 3723 private static final int PROVISIONING = 2; 3724 3725 private String getProvisioningUrlBaseFromFile(int type) { 3726 FileReader fileReader = null; 3727 XmlPullParser parser = null; 3728 Configuration config = mContext.getResources().getConfiguration(); 3729 String tagType; 3730 3731 switch (type) { 3732 case PROVISIONING: 3733 tagType = TAG_PROVISIONING_URL; 3734 break; 3735 case REDIRECTED_PROVISIONING: 3736 tagType = TAG_REDIRECTED_URL; 3737 break; 3738 default: 3739 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 3740 type); 3741 } 3742 3743 try { 3744 fileReader = new FileReader(mProvisioningUrlFile); 3745 parser = Xml.newPullParser(); 3746 parser.setInput(fileReader); 3747 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 3748 3749 while (true) { 3750 XmlUtils.nextElement(parser); 3751 3752 String element = parser.getName(); 3753 if (element == null) break; 3754 3755 if (element.equals(tagType)) { 3756 String mcc = parser.getAttributeValue(null, ATTR_MCC); 3757 try { 3758 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 3759 String mnc = parser.getAttributeValue(null, ATTR_MNC); 3760 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 3761 parser.next(); 3762 if (parser.getEventType() == XmlPullParser.TEXT) { 3763 return parser.getText(); 3764 } 3765 } 3766 } 3767 } catch (NumberFormatException e) { 3768 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 3769 } 3770 } 3771 } 3772 return null; 3773 } catch (FileNotFoundException e) { 3774 loge("Carrier Provisioning Urls file not found"); 3775 } catch (XmlPullParserException e) { 3776 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 3777 } catch (IOException e) { 3778 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 3779 } finally { 3780 if (fileReader != null) { 3781 try { 3782 fileReader.close(); 3783 } catch (IOException e) {} 3784 } 3785 } 3786 return null; 3787 } 3788 3789 @Override 3790 public String getMobileRedirectedProvisioningUrl() { 3791 enforceConnectivityInternalPermission(); 3792 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 3793 if (TextUtils.isEmpty(url)) { 3794 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 3795 } 3796 return url; 3797 } 3798 3799 @Override 3800 public String getMobileProvisioningUrl() { 3801 enforceConnectivityInternalPermission(); 3802 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 3803 if (TextUtils.isEmpty(url)) { 3804 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 3805 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 3806 } else { 3807 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 3808 } 3809 // populate the iccid, imei and phone number in the provisioning url. 3810 if (!TextUtils.isEmpty(url)) { 3811 String phoneNumber = mTelephonyManager.getLine1Number(); 3812 if (TextUtils.isEmpty(phoneNumber)) { 3813 phoneNumber = "0000000000"; 3814 } 3815 url = String.format(url, 3816 mTelephonyManager.getSimSerialNumber() /* ICCID */, 3817 mTelephonyManager.getDeviceId() /* IMEI */, 3818 phoneNumber /* Phone numer */); 3819 } 3820 3821 return url; 3822 } 3823 3824 @Override 3825 public void setProvisioningNotificationVisible(boolean visible, int networkType, 3826 String extraInfo, String url) { 3827 enforceConnectivityInternalPermission(); 3828 setProvNotificationVisible(visible, networkType, extraInfo, url); 3829 } 3830 3831 @Override 3832 public void setAirplaneMode(boolean enable) { 3833 enforceConnectivityInternalPermission(); 3834 final long ident = Binder.clearCallingIdentity(); 3835 try { 3836 final ContentResolver cr = mContext.getContentResolver(); 3837 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 3838 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 3839 intent.putExtra("state", enable); 3840 mContext.sendBroadcast(intent); 3841 } finally { 3842 Binder.restoreCallingIdentity(ident); 3843 } 3844 } 3845 3846 private void onUserStart(int userId) { 3847 synchronized(mVpns) { 3848 Vpn userVpn = mVpns.get(userId); 3849 if (userVpn != null) { 3850 loge("Starting user already has a VPN"); 3851 return; 3852 } 3853 userVpn = new Vpn(mHandler.getLooper(), mContext, mNetd, this, userId); 3854 mVpns.put(userId, userVpn); 3855 } 3856 } 3857 3858 private void onUserStop(int userId) { 3859 synchronized(mVpns) { 3860 Vpn userVpn = mVpns.get(userId); 3861 if (userVpn == null) { 3862 loge("Stopping user has no VPN"); 3863 return; 3864 } 3865 mVpns.delete(userId); 3866 } 3867 } 3868 3869 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 3870 @Override 3871 public void onReceive(Context context, Intent intent) { 3872 final String action = intent.getAction(); 3873 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3874 if (userId == UserHandle.USER_NULL) return; 3875 3876 if (Intent.ACTION_USER_STARTING.equals(action)) { 3877 onUserStart(userId); 3878 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 3879 onUserStop(userId); 3880 } 3881 } 3882 }; 3883 3884 @Override 3885 public LinkQualityInfo getLinkQualityInfo(int networkType) { 3886 enforceAccessPermission(); 3887 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 3888 return mNetTrackers[networkType].getLinkQualityInfo(); 3889 } else { 3890 return null; 3891 } 3892 } 3893 3894 @Override 3895 public LinkQualityInfo getActiveLinkQualityInfo() { 3896 enforceAccessPermission(); 3897 if (isNetworkTypeValid(mActiveDefaultNetwork) && 3898 mNetTrackers[mActiveDefaultNetwork] != null) { 3899 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 3900 } else { 3901 return null; 3902 } 3903 } 3904 3905 @Override 3906 public LinkQualityInfo[] getAllLinkQualityInfo() { 3907 enforceAccessPermission(); 3908 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 3909 for (NetworkStateTracker tracker : mNetTrackers) { 3910 if (tracker != null) { 3911 LinkQualityInfo li = tracker.getLinkQualityInfo(); 3912 if (li != null) { 3913 result.add(li); 3914 } 3915 } 3916 } 3917 3918 return result.toArray(new LinkQualityInfo[result.size()]); 3919 } 3920 3921 /* Infrastructure for network sampling */ 3922 3923 private void handleNetworkSamplingTimeout() { 3924 3925 if (SAMPLE_DBG) log("Sampling interval elapsed, updating statistics .."); 3926 3927 // initialize list of interfaces .. 3928 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 3929 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 3930 for (NetworkStateTracker tracker : mNetTrackers) { 3931 if (tracker != null) { 3932 String ifaceName = tracker.getNetworkInterfaceName(); 3933 if (ifaceName != null) { 3934 mapIfaceToSample.put(ifaceName, null); 3935 } 3936 } 3937 } 3938 3939 // Read samples for all interfaces 3940 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 3941 3942 // process samples for all networks 3943 for (NetworkStateTracker tracker : mNetTrackers) { 3944 if (tracker != null) { 3945 String ifaceName = tracker.getNetworkInterfaceName(); 3946 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 3947 if (ss != null) { 3948 // end the previous sampling cycle 3949 tracker.stopSampling(ss); 3950 // start a new sampling cycle .. 3951 tracker.startSampling(ss); 3952 } 3953 } 3954 } 3955 3956 if (SAMPLE_DBG) log("Done."); 3957 3958 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 3959 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 3960 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 3961 3962 if (SAMPLE_DBG) { 3963 log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 3964 } 3965 3966 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 3967 } 3968 3969 /** 3970 * Sets a network sampling alarm. 3971 */ 3972 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 3973 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 3974 int alarmType; 3975 if (Resources.getSystem().getBoolean( 3976 R.bool.config_networkSamplingWakesDevice)) { 3977 alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP; 3978 } else { 3979 alarmType = AlarmManager.ELAPSED_REALTIME; 3980 } 3981 mAlarmManager.set(alarmType, wakeupTime, intent); 3982 } 3983 3984 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 3985 new HashMap<Messenger, NetworkFactoryInfo>(); 3986 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 3987 new HashMap<NetworkRequest, NetworkRequestInfo>(); 3988 3989 private static class NetworkFactoryInfo { 3990 public final String name; 3991 public final Messenger messenger; 3992 public final AsyncChannel asyncChannel; 3993 3994 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 3995 this.name = name; 3996 this.messenger = messenger; 3997 this.asyncChannel = asyncChannel; 3998 } 3999 } 4000 4001 /** 4002 * Tracks info about the requester. 4003 * Also used to notice when the calling process dies so we can self-expire 4004 */ 4005 private class NetworkRequestInfo implements IBinder.DeathRecipient { 4006 static final boolean REQUEST = true; 4007 static final boolean LISTEN = false; 4008 4009 final NetworkRequest request; 4010 IBinder mBinder; 4011 final int mPid; 4012 final int mUid; 4013 final Messenger messenger; 4014 final boolean isRequest; 4015 4016 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 4017 super(); 4018 messenger = m; 4019 request = r; 4020 mBinder = binder; 4021 mPid = getCallingPid(); 4022 mUid = getCallingUid(); 4023 this.isRequest = isRequest; 4024 4025 try { 4026 mBinder.linkToDeath(this, 0); 4027 } catch (RemoteException e) { 4028 binderDied(); 4029 } 4030 } 4031 4032 void unlinkDeathRecipient() { 4033 mBinder.unlinkToDeath(this, 0); 4034 } 4035 4036 public void binderDied() { 4037 log("ConnectivityService NetworkRequestInfo binderDied(" + 4038 request + ", " + mBinder + ")"); 4039 releaseNetworkRequest(request); 4040 } 4041 4042 public String toString() { 4043 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 4044 mPid + " for " + request; 4045 } 4046 } 4047 4048 @Override 4049 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 4050 Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { 4051 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 4052 == false) { 4053 enforceConnectivityInternalPermission(); 4054 } else { 4055 enforceChangePermission(); 4056 } 4057 4058 networkCapabilities = new NetworkCapabilities(networkCapabilities); 4059 4060 // if UID is restricted, don't allow them to bring up metered APNs 4061 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED) 4062 == false) { 4063 final int uidRules; 4064 synchronized(mRulesLock) { 4065 uidRules = mUidRules.get(Binder.getCallingUid(), RULE_ALLOW_ALL); 4066 } 4067 if ((uidRules & RULE_REJECT_METERED) != 0) { 4068 // we could silently fail or we can filter the available nets to only give 4069 // them those they have access to. Chose the more useful 4070 networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 4071 } 4072 } 4073 4074 if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { 4075 throw new IllegalArgumentException("Bad timeout specified"); 4076 } 4077 NetworkRequest networkRequest = new NetworkRequest(networkCapabilities, legacyType, 4078 nextNetworkRequestId()); 4079 if (DBG) log("requestNetwork for " + networkRequest); 4080 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4081 NetworkRequestInfo.REQUEST); 4082 4083 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 4084 if (timeoutMs > 0) { 4085 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 4086 nri), timeoutMs); 4087 } 4088 return networkRequest; 4089 } 4090 4091 @Override 4092 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 4093 PendingIntent operation) { 4094 // TODO 4095 return null; 4096 } 4097 4098 @Override 4099 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 4100 Messenger messenger, IBinder binder) { 4101 enforceAccessPermission(); 4102 4103 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 4104 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 4105 if (DBG) log("listenForNetwork for " + networkRequest); 4106 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4107 NetworkRequestInfo.LISTEN); 4108 4109 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 4110 return networkRequest; 4111 } 4112 4113 @Override 4114 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 4115 PendingIntent operation) { 4116 } 4117 4118 @Override 4119 public void releaseNetworkRequest(NetworkRequest networkRequest) { 4120 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), 4121 0, networkRequest)); 4122 } 4123 4124 @Override 4125 public void registerNetworkFactory(Messenger messenger, String name) { 4126 enforceConnectivityInternalPermission(); 4127 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 4128 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 4129 } 4130 4131 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 4132 if (DBG) log("Got NetworkFactory Messenger for " + nfi.name); 4133 mNetworkFactoryInfos.put(nfi.messenger, nfi); 4134 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 4135 } 4136 4137 @Override 4138 public void unregisterNetworkFactory(Messenger messenger) { 4139 enforceConnectivityInternalPermission(); 4140 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 4141 } 4142 4143 private void handleUnregisterNetworkFactory(Messenger messenger) { 4144 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 4145 if (nfi == null) { 4146 loge("Failed to find Messenger in unregisterNetworkFactory"); 4147 return; 4148 } 4149 if (DBG) log("unregisterNetworkFactory for " + nfi.name); 4150 } 4151 4152 /** 4153 * NetworkAgentInfo supporting a request by requestId. 4154 * These have already been vetted (their Capabilities satisfy the request) 4155 * and the are the highest scored network available. 4156 * the are keyed off the Requests requestId. 4157 */ 4158 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 4159 new SparseArray<NetworkAgentInfo>(); 4160 4161 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 4162 new SparseArray<NetworkAgentInfo>(); 4163 4164 // NetworkAgentInfo keyed off its connecting messenger 4165 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 4166 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 4167 new HashMap<Messenger, NetworkAgentInfo>(); 4168 4169 private final NetworkRequest mDefaultRequest; 4170 4171 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 4172 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 4173 } 4174 4175 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 4176 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 4177 int currentScore, NetworkMisc networkMisc) { 4178 enforceConnectivityInternalPermission(); 4179 4180 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), 4181 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 4182 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler, 4183 networkMisc); 4184 synchronized (this) { 4185 nai.networkMonitor.systemReady = mSystemReady; 4186 } 4187 if (DBG) log("registerNetworkAgent " + nai); 4188 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 4189 } 4190 4191 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 4192 if (VDBG) log("Got NetworkAgent Messenger"); 4193 mNetworkAgentInfos.put(na.messenger, na); 4194 assignNextNetId(na); 4195 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 4196 NetworkInfo networkInfo = na.networkInfo; 4197 na.networkInfo = null; 4198 updateNetworkInfo(na, networkInfo); 4199 } 4200 4201 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 4202 LinkProperties newLp = networkAgent.linkProperties; 4203 int netId = networkAgent.network.netId; 4204 4205 updateInterfaces(newLp, oldLp, netId); 4206 updateMtu(newLp, oldLp); 4207 updateTcpBufferSizes(networkAgent); 4208 // TODO - figure out what to do for clat 4209// for (LinkProperties lp : newLp.getStackedLinks()) { 4210// updateMtu(lp, null); 4211// } 4212 final boolean flushDns = updateRoutes(newLp, oldLp, netId); 4213 updateDnses(newLp, oldLp, netId, flushDns); 4214 updateClat(newLp, oldLp, networkAgent); 4215 if (isDefaultNetwork(networkAgent)) handleApplyDefaultProxy(newLp.getHttpProxy()); 4216 } 4217 4218 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { 4219 // Update 464xlat state. 4220 if (mClat.requiresClat(na)) { 4221 4222 // If the connection was previously using clat, but is not using it now, stop the clat 4223 // daemon. Normally, this happens automatically when the connection disconnects, but if 4224 // the disconnect is not reported, or if the connection's LinkProperties changed for 4225 // some other reason (e.g., handoff changes the IP addresses on the link), it would 4226 // still be running. If it's not running, then stopping it is a no-op. 4227 if (Nat464Xlat.isRunningClat(oldLp) && !Nat464Xlat.isRunningClat(newLp)) { 4228 mClat.stopClat(); 4229 } 4230 // If the link requires clat to be running, then start the daemon now. 4231 if (na.networkInfo.isConnected()) { 4232 mClat.startClat(na); 4233 } else { 4234 mClat.stopClat(); 4235 } 4236 } 4237 } 4238 4239 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 4240 CompareResult<String> interfaceDiff = new CompareResult<String>(); 4241 if (oldLp != null) { 4242 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 4243 } else if (newLp != null) { 4244 interfaceDiff.added = newLp.getAllInterfaceNames(); 4245 } 4246 for (String iface : interfaceDiff.added) { 4247 try { 4248 if (DBG) log("Adding iface " + iface + " to network " + netId); 4249 mNetd.addInterfaceToNetwork(iface, netId); 4250 } catch (Exception e) { 4251 loge("Exception adding interface: " + e); 4252 } 4253 } 4254 for (String iface : interfaceDiff.removed) { 4255 try { 4256 if (DBG) log("Removing iface " + iface + " from network " + netId); 4257 mNetd.removeInterfaceFromNetwork(iface, netId); 4258 } catch (Exception e) { 4259 loge("Exception removing interface: " + e); 4260 } 4261 } 4262 } 4263 4264 /** 4265 * Have netd update routes from oldLp to newLp. 4266 * @return true if routes changed between oldLp and newLp 4267 */ 4268 private boolean updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 4269 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 4270 if (oldLp != null) { 4271 routeDiff = oldLp.compareAllRoutes(newLp); 4272 } else if (newLp != null) { 4273 routeDiff.added = newLp.getAllRoutes(); 4274 } 4275 4276 // add routes before removing old in case it helps with continuous connectivity 4277 4278 // do this twice, adding non-nexthop routes first, then routes they are dependent on 4279 for (RouteInfo route : routeDiff.added) { 4280 if (route.hasGateway()) continue; 4281 if (DBG) log("Adding Route [" + route + "] to network " + netId); 4282 try { 4283 mNetd.addRoute(netId, route); 4284 } catch (Exception e) { 4285 if ((route.getDestination().getAddress() instanceof Inet4Address) || VDBG) { 4286 loge("Exception in addRoute for non-gateway: " + e); 4287 } 4288 } 4289 } 4290 for (RouteInfo route : routeDiff.added) { 4291 if (route.hasGateway() == false) continue; 4292 if (DBG) log("Adding Route [" + route + "] to network " + netId); 4293 try { 4294 mNetd.addRoute(netId, route); 4295 } catch (Exception e) { 4296 if ((route.getGateway() instanceof Inet4Address) || VDBG) { 4297 loge("Exception in addRoute for gateway: " + e); 4298 } 4299 } 4300 } 4301 4302 for (RouteInfo route : routeDiff.removed) { 4303 if (DBG) log("Removing Route [" + route + "] from network " + netId); 4304 try { 4305 mNetd.removeRoute(netId, route); 4306 } catch (Exception e) { 4307 loge("Exception in removeRoute: " + e); 4308 } 4309 } 4310 return !routeDiff.added.isEmpty() || !routeDiff.removed.isEmpty(); 4311 } 4312 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId, boolean flush) { 4313 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 4314 Collection<InetAddress> dnses = newLp.getDnsServers(); 4315 if (dnses.size() == 0 && mDefaultDns != null) { 4316 dnses = new ArrayList(); 4317 dnses.add(mDefaultDns); 4318 if (DBG) { 4319 loge("no dns provided for netId " + netId + ", so using defaults"); 4320 } 4321 } 4322 if (DBG) log("Setting Dns servers for network " + netId + " to " + dnses); 4323 try { 4324 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 4325 newLp.getDomains()); 4326 } catch (Exception e) { 4327 loge("Exception in setDnsServersForNetwork: " + e); 4328 } 4329 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 4330 if (defaultNai != null && defaultNai.network.netId == netId) { 4331 setDefaultDnsSystemProperties(dnses); 4332 } 4333 flushVmDnsCache(); 4334 } else if (flush) { 4335 try { 4336 mNetd.flushNetworkDnsCache(netId); 4337 } catch (Exception e) { 4338 loge("Exception in flushNetworkDnsCache: " + e); 4339 } 4340 flushVmDnsCache(); 4341 } 4342 } 4343 4344 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 4345 int last = 0; 4346 for (InetAddress dns : dnses) { 4347 ++last; 4348 String key = "net.dns" + last; 4349 String value = dns.getHostAddress(); 4350 SystemProperties.set(key, value); 4351 } 4352 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 4353 String key = "net.dns" + i; 4354 SystemProperties.set(key, ""); 4355 } 4356 mNumDnsEntries = last; 4357 } 4358 4359 4360 private void updateCapabilities(NetworkAgentInfo networkAgent, 4361 NetworkCapabilities networkCapabilities) { 4362 // TODO - what else here? Verify still satisfies everybody? 4363 // Check if satisfies somebody new? call callbacks? 4364 synchronized (networkAgent) { 4365 networkAgent.networkCapabilities = networkCapabilities; 4366 } 4367 } 4368 4369 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 4370 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 4371 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 4372 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 4373 networkRequest); 4374 } 4375 } 4376 4377 private void callCallbackForRequest(NetworkRequestInfo nri, 4378 NetworkAgentInfo networkAgent, int notificationType) { 4379 if (nri.messenger == null) return; // Default request has no msgr 4380 Object o; 4381 int a1 = 0; 4382 int a2 = 0; 4383 switch (notificationType) { 4384 case ConnectivityManager.CALLBACK_LOSING: 4385 a1 = 30 * 1000; // TODO - read this from NetworkMonitor 4386 // fall through 4387 case ConnectivityManager.CALLBACK_PRECHECK: 4388 case ConnectivityManager.CALLBACK_AVAILABLE: 4389 case ConnectivityManager.CALLBACK_LOST: 4390 case ConnectivityManager.CALLBACK_CAP_CHANGED: 4391 case ConnectivityManager.CALLBACK_IP_CHANGED: { 4392 o = new NetworkRequest(nri.request); 4393 a2 = networkAgent.network.netId; 4394 break; 4395 } 4396 case ConnectivityManager.CALLBACK_UNAVAIL: 4397 case ConnectivityManager.CALLBACK_RELEASED: { 4398 o = new NetworkRequest(nri.request); 4399 break; 4400 } 4401 default: { 4402 loge("Unknown notificationType " + notificationType); 4403 return; 4404 } 4405 } 4406 Message msg = Message.obtain(); 4407 msg.arg1 = a1; 4408 msg.arg2 = a2; 4409 msg.obj = o; 4410 msg.what = notificationType; 4411 try { 4412 if (VDBG) { 4413 log("sending notification " + notifyTypeToName(notificationType) + 4414 " for " + nri.request); 4415 } 4416 nri.messenger.send(msg); 4417 } catch (RemoteException e) { 4418 // may occur naturally in the race of binder death. 4419 loge("RemoteException caught trying to send a callback msg for " + nri.request); 4420 } 4421 } 4422 4423 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 4424 if (oldNetwork == null) { 4425 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 4426 return; 4427 } 4428 if (DBG) log("handleLingerComplete for " + oldNetwork.name()); 4429 if (DBG) { 4430 if (oldNetwork.networkRequests.size() != 0) { 4431 loge("Dead network still had " + oldNetwork.networkRequests.size() + " requests"); 4432 } 4433 } 4434 oldNetwork.asyncChannel.disconnect(); 4435 } 4436 4437 private void makeDefault(NetworkAgentInfo newNetwork) { 4438 if (DBG) log("Switching to new default network: " + newNetwork); 4439 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4440 setupDataActivityTracking(newNetwork); 4441 try { 4442 mNetd.setDefaultNetId(newNetwork.network.netId); 4443 } catch (Exception e) { 4444 loge("Exception setting default network :" + e); 4445 } 4446 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 4447 updateTcpBufferSizes(newNetwork); 4448 } 4449 4450 private void handleConnectionValidated(NetworkAgentInfo newNetwork) { 4451 if (newNetwork == null) { 4452 loge("Unknown NetworkAgentInfo in handleConnectionValidated"); 4453 return; 4454 } 4455 boolean keep = newNetwork.isVPN(); 4456 boolean isNewDefault = false; 4457 if (DBG) log("handleConnectionValidated for "+newNetwork.name()); 4458 // check if any NetworkRequest wants this NetworkAgent 4459 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 4460 if (VDBG) log(" new Network has: " + newNetwork.networkCapabilities); 4461 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 4462 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 4463 if (newNetwork == currentNetwork) { 4464 if (DBG) log("Network " + newNetwork.name() + " was already satisfying" + 4465 " request " + nri.request.requestId + ". No change."); 4466 keep = true; 4467 continue; 4468 } 4469 4470 // check if it satisfies the NetworkCapabilities 4471 if (VDBG) log(" checking if request is satisfied: " + nri.request); 4472 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 4473 newNetwork.networkCapabilities)) { 4474 if (!nri.isRequest) { 4475 newNetwork.addRequest(nri.request); 4476 continue; 4477 } 4478 // next check if it's better than any current network we're using for 4479 // this request 4480 if (VDBG) { 4481 log("currentScore = " + 4482 (currentNetwork != null ? currentNetwork.currentScore : 0) + 4483 ", newScore = " + newNetwork.currentScore); 4484 } 4485 if (currentNetwork == null || 4486 currentNetwork.currentScore < newNetwork.currentScore) { 4487 if (currentNetwork != null) { 4488 if (DBG) log(" accepting network in place of " + currentNetwork.name()); 4489 currentNetwork.networkRequests.remove(nri.request.requestId); 4490 currentNetwork.networkLingered.add(nri.request); 4491 affectedNetworks.add(currentNetwork); 4492 } else { 4493 if (DBG) log(" accepting network in place of null"); 4494 } 4495 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 4496 newNetwork.addRequest(nri.request); 4497 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 4498 mLegacyTypeTracker.add(nri.request.legacyType, newNetwork); 4499 } 4500 keep = true; 4501 // TODO - this could get expensive if we have alot of requests for this 4502 // network. Think about if there is a way to reduce this. Push 4503 // netid->request mapping to each factory? 4504 sendUpdatedScoreToFactories(nri.request, newNetwork.currentScore); 4505 if (mDefaultRequest.requestId == nri.request.requestId) { 4506 isNewDefault = true; 4507 updateActiveDefaultNetwork(newNetwork); 4508 if (newNetwork.linkProperties != null) { 4509 updateTcpBufferSizes(newNetwork); 4510 setDefaultDnsSystemProperties( 4511 newNetwork.linkProperties.getDnsServers()); 4512 } else { 4513 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 4514 } 4515 // Maintain the illusion: since the legacy API only 4516 // understands one network at a time, we must pretend 4517 // that the current default network disconnected before 4518 // the new one connected. 4519 if (currentNetwork != null) { 4520 mLegacyTypeTracker.remove(currentNetwork.networkInfo.getType(), 4521 currentNetwork); 4522 } 4523 mDefaultInetConditionPublished = 100; 4524 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 4525 } 4526 } 4527 } 4528 } 4529 for (NetworkAgentInfo nai : affectedNetworks) { 4530 boolean teardown = !nai.isVPN(); 4531 for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { 4532 NetworkRequest nr = nai.networkRequests.valueAt(i); 4533 try { 4534 if (mNetworkRequests.get(nr).isRequest) { 4535 teardown = false; 4536 } 4537 } catch (Exception e) { 4538 loge("Request " + nr + " not found in mNetworkRequests."); 4539 loge(" it came from request list of " + nai.name()); 4540 } 4541 } 4542 if (teardown) { 4543 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 4544 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 4545 } else { 4546 // not going to linger, so kill the list of linger networks.. only 4547 // notify them of linger if it happens as the result of gaining another, 4548 // but if they transition and old network stays up, don't tell them of linger 4549 // or very delayed loss 4550 nai.networkLingered.clear(); 4551 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 4552 } 4553 } 4554 if (keep) { 4555 if (isNewDefault) { 4556 makeDefault(newNetwork); 4557 synchronized (ConnectivityService.this) { 4558 // have a new default network, release the transition wakelock in 4559 // a second if it's held. The second pause is to allow apps 4560 // to reconnect over the new network 4561 if (mNetTransitionWakeLock.isHeld()) { 4562 mHandler.sendMessageDelayed(mHandler.obtainMessage( 4563 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 4564 mNetTransitionWakeLockSerialNumber, 0), 4565 1000); 4566 } 4567 } 4568 } 4569 4570 // Notify battery stats service about this network, both the normal 4571 // interface and any stacked links. 4572 try { 4573 final IBatteryStats bs = BatteryStatsService.getService(); 4574 final int type = newNetwork.networkInfo.getType(); 4575 4576 final String baseIface = newNetwork.linkProperties.getInterfaceName(); 4577 bs.noteNetworkInterfaceType(baseIface, type); 4578 for (LinkProperties stacked : newNetwork.linkProperties.getStackedLinks()) { 4579 final String stackedIface = stacked.getInterfaceName(); 4580 bs.noteNetworkInterfaceType(stackedIface, type); 4581 NetworkStatsFactory.noteStackedIface(stackedIface, baseIface); 4582 } 4583 } catch (RemoteException ignored) { 4584 } 4585 4586 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 4587 } else { 4588 if (DBG && newNetwork.networkRequests.size() != 0) { 4589 loge("tearing down network with live requests:"); 4590 for (int i=0; i < newNetwork.networkRequests.size(); i++) { 4591 loge(" " + newNetwork.networkRequests.valueAt(i)); 4592 } 4593 } 4594 if (DBG) log("Validated network turns out to be unwanted. Tear it down."); 4595 newNetwork.asyncChannel.disconnect(); 4596 } 4597 } 4598 4599 4600 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 4601 NetworkInfo.State state = newInfo.getState(); 4602 NetworkInfo oldInfo = null; 4603 synchronized (networkAgent) { 4604 oldInfo = networkAgent.networkInfo; 4605 networkAgent.networkInfo = newInfo; 4606 } 4607 if (networkAgent.isVPN() && mLockdownTracker != null) { 4608 mLockdownTracker.onVpnStateChanged(newInfo); 4609 } 4610 4611 if (oldInfo != null && oldInfo.getState() == state) { 4612 if (VDBG) log("ignoring duplicate network state non-change"); 4613 return; 4614 } 4615 if (DBG) { 4616 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 4617 (oldInfo == null ? "null" : oldInfo.getState()) + 4618 " to " + state); 4619 } 4620 4621 if (state == NetworkInfo.State.CONNECTED && !networkAgent.created) { 4622 try { 4623 // This should never fail. Specifying an already in use NetID will cause failure. 4624 if (networkAgent.isVPN()) { 4625 mNetd.createVirtualNetwork(networkAgent.network.netId, 4626 !networkAgent.linkProperties.getDnsServers().isEmpty(), 4627 (networkAgent.networkMisc == null || 4628 !networkAgent.networkMisc.allowBypass)); 4629 } else { 4630 mNetd.createPhysicalNetwork(networkAgent.network.netId); 4631 } 4632 } catch (Exception e) { 4633 loge("Error creating network " + networkAgent.network.netId + ": " 4634 + e.getMessage()); 4635 return; 4636 } 4637 networkAgent.created = true; 4638 updateLinkProperties(networkAgent, null); 4639 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 4640 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 4641 if (networkAgent.isVPN()) { 4642 // Temporarily disable the default proxy (not global). 4643 synchronized (mProxyLock) { 4644 if (!mDefaultProxyDisabled) { 4645 mDefaultProxyDisabled = true; 4646 if (mGlobalProxy == null && mDefaultProxy != null) { 4647 sendProxyBroadcast(null); 4648 } 4649 } 4650 } 4651 // TODO: support proxy per network. 4652 } 4653 // Make default network if we have no default. Any network is better than no network. 4654 if (mNetworkForRequestId.get(mDefaultRequest.requestId) == null && 4655 networkAgent.isVPN() == false && 4656 mDefaultRequest.networkCapabilities.satisfiedByNetworkCapabilities( 4657 networkAgent.networkCapabilities)) { 4658 makeDefault(networkAgent); 4659 } 4660 } else if (state == NetworkInfo.State.DISCONNECTED || 4661 state == NetworkInfo.State.SUSPENDED) { 4662 networkAgent.asyncChannel.disconnect(); 4663 if (networkAgent.isVPN()) { 4664 synchronized (mProxyLock) { 4665 if (mDefaultProxyDisabled) { 4666 mDefaultProxyDisabled = false; 4667 if (mGlobalProxy == null && mDefaultProxy != null) { 4668 sendProxyBroadcast(mDefaultProxy); 4669 } 4670 } 4671 } 4672 } 4673 } 4674 } 4675 4676 private void updateNetworkScore(NetworkAgentInfo nai, int score) { 4677 if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); 4678 4679 nai.currentScore = score; 4680 4681 // TODO - This will not do the right thing if this network is lowering 4682 // its score and has requests that can be served by other 4683 // currently-active networks, or if the network is increasing its 4684 // score and other networks have requests that can be better served 4685 // by this network. 4686 // 4687 // Really we want to see if any of our requests migrate to other 4688 // active/lingered networks and if any other requests migrate to us (depending 4689 // on increasing/decreasing currentScore. That's a bit of work and probably our 4690 // score checking/network allocation code needs to be modularized so we can understand 4691 // (see handleConnectionValided for an example). 4692 // 4693 // As a first order approx, lets just advertise the new score to factories. If 4694 // somebody can beat it they will nominate a network and our normal net replacement 4695 // code will fire. 4696 for (int i = 0; i < nai.networkRequests.size(); i++) { 4697 NetworkRequest nr = nai.networkRequests.valueAt(i); 4698 sendUpdatedScoreToFactories(nr, score); 4699 } 4700 } 4701 4702 // notify only this one new request of the current state 4703 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 4704 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 4705 // TODO - read state from monitor to decide what to send. 4706// if (nai.networkMonitor.isLingering()) { 4707// notifyType = NetworkCallbacks.LOSING; 4708// } else if (nai.networkMonitor.isEvaluating()) { 4709// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 4710// } 4711 callCallbackForRequest(nri, nai, notifyType); 4712 } 4713 4714 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 4715 // The NetworkInfo we actually send out has no bearing on the real 4716 // state of affairs. For example, if the default connection is mobile, 4717 // and a request for HIPRI has just gone away, we need to pretend that 4718 // HIPRI has just disconnected. So we need to set the type to HIPRI and 4719 // the state to DISCONNECTED, even though the network is of type MOBILE 4720 // and is still connected. 4721 NetworkInfo info = new NetworkInfo(nai.networkInfo); 4722 info.setType(type); 4723 if (connected) { 4724 info.setDetailedState(DetailedState.CONNECTED, null, info.getExtraInfo()); 4725 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 4726 } else { 4727 info.setDetailedState(DetailedState.DISCONNECTED, null, info.getExtraInfo()); 4728 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 4729 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 4730 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 4731 if (info.isFailover()) { 4732 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 4733 nai.networkInfo.setFailover(false); 4734 } 4735 if (info.getReason() != null) { 4736 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 4737 } 4738 if (info.getExtraInfo() != null) { 4739 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 4740 } 4741 NetworkAgentInfo newDefaultAgent = null; 4742 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 4743 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 4744 if (newDefaultAgent != null) { 4745 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 4746 newDefaultAgent.networkInfo); 4747 } else { 4748 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 4749 } 4750 } 4751 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 4752 mDefaultInetConditionPublished); 4753 final Intent immediateIntent = new Intent(intent); 4754 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 4755 sendStickyBroadcast(immediateIntent); 4756 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 4757 if (newDefaultAgent != null) { 4758 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 4759 getConnectivityChangeDelay()); 4760 } 4761 } 4762 } 4763 4764 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 4765 if (DBG) log("notifyType " + notifyTypeToName(notifyType) + " for " + networkAgent.name()); 4766 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 4767 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 4768 NetworkRequestInfo nri = mNetworkRequests.get(nr); 4769 if (VDBG) log(" sending notification for " + nr); 4770 callCallbackForRequest(nri, networkAgent, notifyType); 4771 } 4772 } 4773 4774 private String notifyTypeToName(int notifyType) { 4775 switch (notifyType) { 4776 case ConnectivityManager.CALLBACK_PRECHECK: return "PRECHECK"; 4777 case ConnectivityManager.CALLBACK_AVAILABLE: return "AVAILABLE"; 4778 case ConnectivityManager.CALLBACK_LOSING: return "LOSING"; 4779 case ConnectivityManager.CALLBACK_LOST: return "LOST"; 4780 case ConnectivityManager.CALLBACK_UNAVAIL: return "UNAVAILABLE"; 4781 case ConnectivityManager.CALLBACK_CAP_CHANGED: return "CAP_CHANGED"; 4782 case ConnectivityManager.CALLBACK_IP_CHANGED: return "IP_CHANGED"; 4783 case ConnectivityManager.CALLBACK_RELEASED: return "RELEASED"; 4784 } 4785 return "UNKNOWN"; 4786 } 4787 4788 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 4789 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4790 if (nai != null) { 4791 synchronized (nai) { 4792 return new LinkProperties(nai.linkProperties); 4793 } 4794 } 4795 return new LinkProperties(); 4796 } 4797 4798 private NetworkInfo getNetworkInfoForType(int networkType) { 4799 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 4800 return null; 4801 4802 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4803 if (nai != null) { 4804 NetworkInfo result = new NetworkInfo(nai.networkInfo); 4805 result.setType(networkType); 4806 return result; 4807 } else { 4808 NetworkInfo result = new NetworkInfo(networkType); 4809 result.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, null, null); 4810 return result; 4811 } 4812 } 4813 4814 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 4815 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4816 if (nai != null) { 4817 synchronized (nai) { 4818 return new NetworkCapabilities(nai.networkCapabilities); 4819 } 4820 } 4821 return new NetworkCapabilities(); 4822 } 4823 4824 @Override 4825 public boolean addVpnAddress(String address, int prefixLength) { 4826 throwIfLockdownEnabled(); 4827 int user = UserHandle.getUserId(Binder.getCallingUid()); 4828 synchronized (mVpns) { 4829 return mVpns.get(user).addAddress(address, prefixLength); 4830 } 4831 } 4832 4833 @Override 4834 public boolean removeVpnAddress(String address, int prefixLength) { 4835 throwIfLockdownEnabled(); 4836 int user = UserHandle.getUserId(Binder.getCallingUid()); 4837 synchronized (mVpns) { 4838 return mVpns.get(user).removeAddress(address, prefixLength); 4839 } 4840 } 4841} 4842