ConnectivityService.java revision e034716628de94399717a744f14bdfd534d8f87a
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server; 18 19import static android.Manifest.permission.MANAGE_NETWORK_POLICY; 20import static android.Manifest.permission.RECEIVE_DATA_ACTIVITY_CHANGE; 21import static android.net.ConnectivityManager.CONNECTIVITY_ACTION; 22import static android.net.ConnectivityManager.CONNECTIVITY_ACTION_IMMEDIATE; 23import static android.net.ConnectivityManager.TYPE_BLUETOOTH; 24import static android.net.ConnectivityManager.TYPE_DUMMY; 25import static android.net.ConnectivityManager.TYPE_MOBILE; 26import static android.net.ConnectivityManager.TYPE_MOBILE_MMS; 27import static android.net.ConnectivityManager.TYPE_MOBILE_SUPL; 28import static android.net.ConnectivityManager.TYPE_MOBILE_DUN; 29import static android.net.ConnectivityManager.TYPE_MOBILE_FOTA; 30import static android.net.ConnectivityManager.TYPE_MOBILE_IMS; 31import static android.net.ConnectivityManager.TYPE_MOBILE_CBS; 32import static android.net.ConnectivityManager.TYPE_MOBILE_IA; 33import static android.net.ConnectivityManager.TYPE_MOBILE_HIPRI; 34import static android.net.ConnectivityManager.TYPE_NONE; 35import static android.net.ConnectivityManager.TYPE_WIFI; 36import static android.net.ConnectivityManager.TYPE_WIMAX; 37import static android.net.ConnectivityManager.TYPE_PROXY; 38import static android.net.ConnectivityManager.getNetworkTypeName; 39import static android.net.ConnectivityManager.isNetworkTypeValid; 40import static android.net.NetworkPolicyManager.RULE_ALLOW_ALL; 41import static android.net.NetworkPolicyManager.RULE_REJECT_METERED; 42 43import android.app.AlarmManager; 44import android.app.Notification; 45import android.app.NotificationManager; 46import android.app.PendingIntent; 47import android.content.ActivityNotFoundException; 48import android.content.BroadcastReceiver; 49import android.content.ContentResolver; 50import android.content.Context; 51import android.content.ContextWrapper; 52import android.content.Intent; 53import android.content.IntentFilter; 54import android.content.pm.PackageManager; 55import android.content.res.Configuration; 56import android.content.res.Resources; 57import android.database.ContentObserver; 58import android.net.ConnectivityManager; 59import android.net.IConnectivityManager; 60import android.net.INetworkManagementEventObserver; 61import android.net.INetworkPolicyListener; 62import android.net.INetworkPolicyManager; 63import android.net.INetworkStatsService; 64import android.net.LinkAddress; 65import android.net.LinkProperties; 66import android.net.LinkProperties.CompareResult; 67import android.net.LinkQualityInfo; 68import android.net.MobileDataStateTracker; 69import android.net.Network; 70import android.net.NetworkAgent; 71import android.net.NetworkCapabilities; 72import android.net.NetworkConfig; 73import android.net.NetworkInfo; 74import android.net.NetworkInfo.DetailedState; 75import android.net.NetworkFactory; 76import android.net.NetworkMisc; 77import android.net.NetworkQuotaInfo; 78import android.net.NetworkRequest; 79import android.net.NetworkState; 80import android.net.NetworkStateTracker; 81import android.net.NetworkUtils; 82import android.net.Proxy; 83import android.net.ProxyDataTracker; 84import android.net.ProxyInfo; 85import android.net.RouteInfo; 86import android.net.SamplingDataTracker; 87import android.net.UidRange; 88import android.net.Uri; 89import android.net.wimax.WimaxManagerConstants; 90import android.os.AsyncTask; 91import android.os.Binder; 92import android.os.Build; 93import android.os.FileUtils; 94import android.os.Handler; 95import android.os.HandlerThread; 96import android.os.IBinder; 97import android.os.INetworkManagementService; 98import android.os.Looper; 99import android.os.Message; 100import android.os.Messenger; 101import android.os.ParcelFileDescriptor; 102import android.os.PowerManager; 103import android.os.Process; 104import android.os.RemoteException; 105import android.os.ServiceManager; 106import android.os.SystemClock; 107import android.os.SystemProperties; 108import android.os.UserHandle; 109import android.os.UserManager; 110import android.provider.Settings; 111import android.security.Credentials; 112import android.security.KeyStore; 113import android.telephony.TelephonyManager; 114import android.text.TextUtils; 115import android.util.Slog; 116import android.util.SparseArray; 117import android.util.SparseIntArray; 118import android.util.Xml; 119 120import com.android.internal.R; 121import com.android.internal.annotations.GuardedBy; 122import com.android.internal.app.IBatteryStats; 123import com.android.internal.net.LegacyVpnInfo; 124import com.android.internal.net.NetworkStatsFactory; 125import com.android.internal.net.VpnConfig; 126import com.android.internal.net.VpnProfile; 127import com.android.internal.telephony.DctConstants; 128import com.android.internal.telephony.Phone; 129import com.android.internal.telephony.PhoneConstants; 130import com.android.internal.telephony.TelephonyIntents; 131import com.android.internal.util.AsyncChannel; 132import com.android.internal.util.IndentingPrintWriter; 133import com.android.internal.util.XmlUtils; 134import com.android.server.am.BatteryStatsService; 135import com.android.server.connectivity.DataConnectionStats; 136import com.android.server.connectivity.Nat464Xlat; 137import com.android.server.connectivity.NetworkAgentInfo; 138import com.android.server.connectivity.NetworkMonitor; 139import com.android.server.connectivity.PacManager; 140import com.android.server.connectivity.Tethering; 141import com.android.server.connectivity.Vpn; 142import com.android.server.net.BaseNetworkObserver; 143import com.android.server.net.LockdownVpnTracker; 144import com.google.android.collect.Lists; 145import com.google.android.collect.Sets; 146 147import dalvik.system.DexClassLoader; 148 149import org.xmlpull.v1.XmlPullParser; 150import org.xmlpull.v1.XmlPullParserException; 151 152import java.io.File; 153import java.io.FileDescriptor; 154import java.io.FileNotFoundException; 155import java.io.FileReader; 156import java.io.IOException; 157import java.io.PrintWriter; 158import java.lang.reflect.Constructor; 159import java.net.HttpURLConnection; 160import java.net.Inet4Address; 161import java.net.Inet6Address; 162import java.net.InetAddress; 163import java.net.URL; 164import java.net.UnknownHostException; 165import java.util.ArrayList; 166import java.util.Arrays; 167import java.util.Collection; 168import java.util.GregorianCalendar; 169import java.util.HashMap; 170import java.util.HashSet; 171import java.util.List; 172import java.util.Map; 173import java.util.Random; 174import java.util.concurrent.atomic.AtomicBoolean; 175import java.util.concurrent.atomic.AtomicInteger; 176 177import javax.net.ssl.HostnameVerifier; 178import javax.net.ssl.HttpsURLConnection; 179import javax.net.ssl.SSLSession; 180 181/** 182 * @hide 183 */ 184public class ConnectivityService extends IConnectivityManager.Stub { 185 private static final String TAG = "ConnectivityService"; 186 187 private static final boolean DBG = true; 188 private static final boolean VDBG = false; 189 190 // network sampling debugging 191 private static final boolean SAMPLE_DBG = false; 192 193 private static final boolean LOGD_RULES = false; 194 195 // TODO: create better separation between radio types and network types 196 197 // how long to wait before switching back to a radio's default network 198 private static final int RESTORE_DEFAULT_NETWORK_DELAY = 1 * 60 * 1000; 199 // system property that can override the above value 200 private static final String NETWORK_RESTORE_DELAY_PROP_NAME = 201 "android.telephony.apn-restore"; 202 203 // Default value if FAIL_FAST_TIME_MS is not set 204 private static final int DEFAULT_FAIL_FAST_TIME_MS = 1 * 60 * 1000; 205 // system property that can override DEFAULT_FAIL_FAST_TIME_MS 206 private static final String FAIL_FAST_TIME_MS = 207 "persist.radio.fail_fast_time_ms"; 208 209 private static final String ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED = 210 "android.net.ConnectivityService.action.PKT_CNT_SAMPLE_INTERVAL_ELAPSED"; 211 212 private static final int SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE = 0; 213 214 private PendingIntent mSampleIntervalElapsedIntent; 215 216 // Set network sampling interval at 12 minutes, this way, even if the timers get 217 // aggregated, it will fire at around 15 minutes, which should allow us to 218 // aggregate this timer with other timers (specially the socket keep alive timers) 219 private static final int DEFAULT_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 12 * 60); 220 221 // start network sampling a minute after booting ... 222 private static final int DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 60); 223 224 AlarmManager mAlarmManager; 225 226 private Tethering mTethering; 227 228 private KeyStore mKeyStore; 229 230 @GuardedBy("mVpns") 231 private final SparseArray<Vpn> mVpns = new SparseArray<Vpn>(); 232 233 private boolean mLockdownEnabled; 234 private LockdownVpnTracker mLockdownTracker; 235 236 private Nat464Xlat mClat; 237 238 /** Lock around {@link #mUidRules} and {@link #mMeteredIfaces}. */ 239 private Object mRulesLock = new Object(); 240 /** Currently active network rules by UID. */ 241 private SparseIntArray mUidRules = new SparseIntArray(); 242 /** Set of ifaces that are costly. */ 243 private HashSet<String> mMeteredIfaces = Sets.newHashSet(); 244 245 /** 246 * Sometimes we want to refer to the individual network state 247 * trackers separately, and sometimes we just want to treat them 248 * abstractly. 249 */ 250 private NetworkStateTracker mNetTrackers[]; 251 252 private Context mContext; 253 private int mNetworkPreference; 254 private int mActiveDefaultNetwork = TYPE_NONE; 255 // 0 is full bad, 100 is full good 256 private int mDefaultInetConditionPublished = 0; 257 258 private Object mDnsLock = new Object(); 259 private int mNumDnsEntries; 260 261 private boolean mTestMode; 262 private static ConnectivityService sServiceInstance; 263 264 private INetworkManagementService mNetd; 265 private INetworkPolicyManager mPolicyManager; 266 267 private String mCurrentTcpBufferSizes; 268 269 private static final int ENABLED = 1; 270 private static final int DISABLED = 0; 271 272 /** 273 * used internally to change our mobile data enabled flag 274 */ 275 private static final int EVENT_CHANGE_MOBILE_DATA_ENABLED = 2; 276 277 /** 278 * used internally to clear a wakelock when transitioning 279 * from one net to another. Clear happens when we get a new 280 * network - EVENT_EXPIRE_NET_TRANSITION_WAKELOCK happens 281 * after a timeout if no network is found (typically 1 min). 282 */ 283 private static final int EVENT_CLEAR_NET_TRANSITION_WAKELOCK = 8; 284 285 /** 286 * used internally to reload global proxy settings 287 */ 288 private static final int EVENT_APPLY_GLOBAL_HTTP_PROXY = 9; 289 290 /** 291 * used internally to set external dependency met/unmet 292 * arg1 = ENABLED (met) or DISABLED (unmet) 293 * arg2 = NetworkType 294 */ 295 private static final int EVENT_SET_DEPENDENCY_MET = 10; 296 297 /** 298 * used internally to send a sticky broadcast delayed. 299 */ 300 private static final int EVENT_SEND_STICKY_BROADCAST_INTENT = 11; 301 302 /** 303 * Used internally to 304 * {@link NetworkStateTracker#setPolicyDataEnable(boolean)}. 305 */ 306 private static final int EVENT_SET_POLICY_DATA_ENABLE = 12; 307 308 /** 309 * Used internally to disable fail fast of mobile data 310 */ 311 private static final int EVENT_ENABLE_FAIL_FAST_MOBILE_DATA = 14; 312 313 /** 314 * used internally to indicate that data sampling interval is up 315 */ 316 private static final int EVENT_SAMPLE_INTERVAL_ELAPSED = 15; 317 318 /** 319 * PAC manager has received new port. 320 */ 321 private static final int EVENT_PROXY_HAS_CHANGED = 16; 322 323 /** 324 * used internally when registering NetworkFactories 325 * obj = NetworkFactoryInfo 326 */ 327 private static final int EVENT_REGISTER_NETWORK_FACTORY = 17; 328 329 /** 330 * used internally when registering NetworkAgents 331 * obj = Messenger 332 */ 333 private static final int EVENT_REGISTER_NETWORK_AGENT = 18; 334 335 /** 336 * used to add a network request 337 * includes a NetworkRequestInfo 338 */ 339 private static final int EVENT_REGISTER_NETWORK_REQUEST = 19; 340 341 /** 342 * indicates a timeout period is over - check if we had a network yet or not 343 * and if not, call the timeout calback (but leave the request live until they 344 * cancel it. 345 * includes a NetworkRequestInfo 346 */ 347 private static final int EVENT_TIMEOUT_NETWORK_REQUEST = 20; 348 349 /** 350 * used to add a network listener - no request 351 * includes a NetworkRequestInfo 352 */ 353 private static final int EVENT_REGISTER_NETWORK_LISTENER = 21; 354 355 /** 356 * used to remove a network request, either a listener or a real request 357 * arg1 = UID of caller 358 * obj = NetworkRequest 359 */ 360 private static final int EVENT_RELEASE_NETWORK_REQUEST = 22; 361 362 /** 363 * used internally when registering NetworkFactories 364 * obj = Messenger 365 */ 366 private static final int EVENT_UNREGISTER_NETWORK_FACTORY = 23; 367 368 /** 369 * used internally to expire a wakelock when transitioning 370 * from one net to another. Expire happens when we fail to find 371 * a new network (typically after 1 minute) - 372 * EVENT_CLEAR_NET_TRANSITION_WAKELOCK happens if we had found 373 * a replacement network. 374 */ 375 private static final int EVENT_EXPIRE_NET_TRANSITION_WAKELOCK = 24; 376 377 /** 378 * Used internally to indicate the system is ready. 379 */ 380 private static final int EVENT_SYSTEM_READY = 25; 381 382 383 /** Handler used for internal events. */ 384 final private InternalHandler mHandler; 385 /** Handler used for incoming {@link NetworkStateTracker} events. */ 386 final private NetworkStateTrackerHandler mTrackerHandler; 387 388 private boolean mSystemReady; 389 private Intent mInitialBroadcast; 390 391 private PowerManager.WakeLock mNetTransitionWakeLock; 392 private String mNetTransitionWakeLockCausedBy = ""; 393 private int mNetTransitionWakeLockSerialNumber; 394 private int mNetTransitionWakeLockTimeout; 395 396 private InetAddress mDefaultDns; 397 398 // used in DBG mode to track inet condition reports 399 private static final int INET_CONDITION_LOG_MAX_SIZE = 15; 400 private ArrayList mInetLog; 401 402 // track the current default http proxy - tell the world if we get a new one (real change) 403 private ProxyInfo mDefaultProxy = null; 404 private Object mProxyLock = new Object(); 405 private boolean mDefaultProxyDisabled = false; 406 407 // track the global proxy. 408 private ProxyInfo mGlobalProxy = null; 409 410 private PacManager mPacManager = null; 411 412 private SettingsObserver mSettingsObserver; 413 414 private UserManager mUserManager; 415 416 NetworkConfig[] mNetConfigs; 417 int mNetworksDefined; 418 419 // the set of network types that can only be enabled by system/sig apps 420 List mProtectedNetworks; 421 422 private DataConnectionStats mDataConnectionStats; 423 424 private AtomicInteger mEnableFailFastMobileDataTag = new AtomicInteger(0); 425 426 TelephonyManager mTelephonyManager; 427 428 // sequence number for Networks; keep in sync with system/netd/NetworkController.cpp 429 private final static int MIN_NET_ID = 100; // some reserved marks 430 private final static int MAX_NET_ID = 65535; 431 private int mNextNetId = MIN_NET_ID; 432 433 // sequence number of NetworkRequests 434 private int mNextNetworkRequestId = 1; 435 436 /** 437 * Implements support for the legacy "one network per network type" model. 438 * 439 * We used to have a static array of NetworkStateTrackers, one for each 440 * network type, but that doesn't work any more now that we can have, 441 * for example, more that one wifi network. This class stores all the 442 * NetworkAgentInfo objects that support a given type, but the legacy 443 * API will only see the first one. 444 * 445 * It serves two main purposes: 446 * 447 * 1. Provide information about "the network for a given type" (since this 448 * API only supports one). 449 * 2. Send legacy connectivity change broadcasts. Broadcasts are sent if 450 * the first network for a given type changes, or if the default network 451 * changes. 452 */ 453 private class LegacyTypeTracker { 454 455 private static final boolean DBG = true; 456 private static final boolean VDBG = false; 457 private static final String TAG = "CSLegacyTypeTracker"; 458 459 /** 460 * Array of lists, one per legacy network type (e.g., TYPE_MOBILE_MMS). 461 * Each list holds references to all NetworkAgentInfos that are used to 462 * satisfy requests for that network type. 463 * 464 * This array is built out at startup such that an unsupported network 465 * doesn't get an ArrayList instance, making this a tristate: 466 * unsupported, supported but not active and active. 467 * 468 * The actual lists are populated when we scan the network types that 469 * are supported on this device. 470 */ 471 private ArrayList<NetworkAgentInfo> mTypeLists[]; 472 473 public LegacyTypeTracker() { 474 mTypeLists = (ArrayList<NetworkAgentInfo>[]) 475 new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE + 1]; 476 } 477 478 public void addSupportedType(int type) { 479 if (mTypeLists[type] != null) { 480 throw new IllegalStateException( 481 "legacy list for type " + type + "already initialized"); 482 } 483 mTypeLists[type] = new ArrayList<NetworkAgentInfo>(); 484 } 485 486 public boolean isTypeSupported(int type) { 487 return isNetworkTypeValid(type) && mTypeLists[type] != null; 488 } 489 490 public NetworkAgentInfo getNetworkForType(int type) { 491 if (isTypeSupported(type) && !mTypeLists[type].isEmpty()) { 492 return mTypeLists[type].get(0); 493 } else { 494 return null; 495 } 496 } 497 498 private void maybeLogBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 499 if (DBG) { 500 log("Sending " + (connected ? "connected" : "disconnected") + 501 " broadcast for type " + type + " " + nai.name() + 502 " isDefaultNetwork=" + isDefaultNetwork(nai)); 503 } 504 } 505 506 /** Adds the given network to the specified legacy type list. */ 507 public void add(int type, NetworkAgentInfo nai) { 508 if (!isTypeSupported(type)) { 509 return; // Invalid network type. 510 } 511 if (VDBG) log("Adding agent " + nai + " for legacy network type " + type); 512 513 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 514 if (list.contains(nai)) { 515 loge("Attempting to register duplicate agent for type " + type + ": " + nai); 516 return; 517 } 518 519 if (list.isEmpty() || isDefaultNetwork(nai)) { 520 maybeLogBroadcast(nai, true, type); 521 sendLegacyNetworkBroadcast(nai, true, type); 522 } 523 list.add(nai); 524 } 525 526 /** Removes the given network from the specified legacy type list. */ 527 public void remove(int type, NetworkAgentInfo nai) { 528 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 529 if (list == null || list.isEmpty()) { 530 return; 531 } 532 533 boolean wasFirstNetwork = list.get(0).equals(nai); 534 535 if (!list.remove(nai)) { 536 return; 537 } 538 539 if (wasFirstNetwork || isDefaultNetwork(nai)) { 540 maybeLogBroadcast(nai, false, type); 541 sendLegacyNetworkBroadcast(nai, false, type); 542 } 543 544 if (!list.isEmpty() && wasFirstNetwork) { 545 if (DBG) log("Other network available for type " + type + 546 ", sending connected broadcast"); 547 maybeLogBroadcast(list.get(0), false, type); 548 sendLegacyNetworkBroadcast(list.get(0), false, type); 549 } 550 } 551 552 /** Removes the given network from all legacy type lists. */ 553 public void remove(NetworkAgentInfo nai) { 554 if (VDBG) log("Removing agent " + nai); 555 for (int type = 0; type < mTypeLists.length; type++) { 556 remove(type, nai); 557 } 558 } 559 560 private String naiToString(NetworkAgentInfo nai) { 561 String name = (nai != null) ? nai.name() : "null"; 562 String state = (nai.networkInfo != null) ? 563 nai.networkInfo.getState() + "/" + nai.networkInfo.getDetailedState() : 564 "???/???"; 565 return name + " " + state; 566 } 567 568 public void dump(IndentingPrintWriter pw) { 569 for (int type = 0; type < mTypeLists.length; type++) { 570 if (mTypeLists[type] == null) continue; 571 pw.print(type + " "); 572 pw.increaseIndent(); 573 if (mTypeLists[type].size() == 0) pw.println("none"); 574 for (NetworkAgentInfo nai : mTypeLists[type]) { 575 pw.println(naiToString(nai)); 576 } 577 pw.decreaseIndent(); 578 } 579 } 580 581 // This class needs its own log method because it has a different TAG. 582 private void log(String s) { 583 Slog.d(TAG, s); 584 } 585 586 } 587 private LegacyTypeTracker mLegacyTypeTracker = new LegacyTypeTracker(); 588 589 public ConnectivityService(Context context, INetworkManagementService netManager, 590 INetworkStatsService statsService, INetworkPolicyManager policyManager) { 591 if (DBG) log("ConnectivityService starting up"); 592 593 NetworkCapabilities netCap = new NetworkCapabilities(); 594 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 595 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 596 mDefaultRequest = new NetworkRequest(netCap, TYPE_NONE, nextNetworkRequestId()); 597 NetworkRequestInfo nri = new NetworkRequestInfo(null, mDefaultRequest, new Binder(), 598 NetworkRequestInfo.REQUEST); 599 mNetworkRequests.put(mDefaultRequest, nri); 600 601 HandlerThread handlerThread = new HandlerThread("ConnectivityServiceThread"); 602 handlerThread.start(); 603 mHandler = new InternalHandler(handlerThread.getLooper()); 604 mTrackerHandler = new NetworkStateTrackerHandler(handlerThread.getLooper()); 605 606 // setup our unique device name 607 if (TextUtils.isEmpty(SystemProperties.get("net.hostname"))) { 608 String id = Settings.Secure.getString(context.getContentResolver(), 609 Settings.Secure.ANDROID_ID); 610 if (id != null && id.length() > 0) { 611 String name = new String("android-").concat(id); 612 SystemProperties.set("net.hostname", name); 613 } 614 } 615 616 // read our default dns server ip 617 String dns = Settings.Global.getString(context.getContentResolver(), 618 Settings.Global.DEFAULT_DNS_SERVER); 619 if (dns == null || dns.length() == 0) { 620 dns = context.getResources().getString( 621 com.android.internal.R.string.config_default_dns_server); 622 } 623 try { 624 mDefaultDns = NetworkUtils.numericToInetAddress(dns); 625 } catch (IllegalArgumentException e) { 626 loge("Error setting defaultDns using " + dns); 627 } 628 629 mContext = checkNotNull(context, "missing Context"); 630 mNetd = checkNotNull(netManager, "missing INetworkManagementService"); 631 mPolicyManager = checkNotNull(policyManager, "missing INetworkPolicyManager"); 632 mKeyStore = KeyStore.getInstance(); 633 mTelephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 634 635 try { 636 mPolicyManager.registerListener(mPolicyListener); 637 } catch (RemoteException e) { 638 // ouch, no rules updates means some processes may never get network 639 loge("unable to register INetworkPolicyListener" + e.toString()); 640 } 641 642 final PowerManager powerManager = (PowerManager) context.getSystemService( 643 Context.POWER_SERVICE); 644 mNetTransitionWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); 645 mNetTransitionWakeLockTimeout = mContext.getResources().getInteger( 646 com.android.internal.R.integer.config_networkTransitionTimeout); 647 648 mNetTrackers = new NetworkStateTracker[ 649 ConnectivityManager.MAX_NETWORK_TYPE+1]; 650 651 mNetConfigs = new NetworkConfig[ConnectivityManager.MAX_NETWORK_TYPE+1]; 652 653 // TODO: What is the "correct" way to do determine if this is a wifi only device? 654 boolean wifiOnly = SystemProperties.getBoolean("ro.radio.noril", false); 655 log("wifiOnly=" + wifiOnly); 656 String[] naStrings = context.getResources().getStringArray( 657 com.android.internal.R.array.networkAttributes); 658 for (String naString : naStrings) { 659 try { 660 NetworkConfig n = new NetworkConfig(naString); 661 if (VDBG) log("naString=" + naString + " config=" + n); 662 if (n.type > ConnectivityManager.MAX_NETWORK_TYPE) { 663 loge("Error in networkAttributes - ignoring attempt to define type " + 664 n.type); 665 continue; 666 } 667 if (wifiOnly && ConnectivityManager.isNetworkTypeMobile(n.type)) { 668 log("networkAttributes - ignoring mobile as this dev is wifiOnly " + 669 n.type); 670 continue; 671 } 672 if (mNetConfigs[n.type] != null) { 673 loge("Error in networkAttributes - ignoring attempt to redefine type " + 674 n.type); 675 continue; 676 } 677 mLegacyTypeTracker.addSupportedType(n.type); 678 679 mNetConfigs[n.type] = n; 680 mNetworksDefined++; 681 } catch(Exception e) { 682 // ignore it - leave the entry null 683 } 684 } 685 if (VDBG) log("mNetworksDefined=" + mNetworksDefined); 686 687 mProtectedNetworks = new ArrayList<Integer>(); 688 int[] protectedNetworks = context.getResources().getIntArray( 689 com.android.internal.R.array.config_protectedNetworks); 690 for (int p : protectedNetworks) { 691 if ((mNetConfigs[p] != null) && (mProtectedNetworks.contains(p) == false)) { 692 mProtectedNetworks.add(p); 693 } else { 694 if (DBG) loge("Ignoring protectedNetwork " + p); 695 } 696 } 697 698 mTestMode = SystemProperties.get("cm.test.mode").equals("true") 699 && SystemProperties.get("ro.build.type").equals("eng"); 700 701 mTethering = new Tethering(mContext, mNetd, statsService, mHandler.getLooper()); 702 703 //set up the listener for user state for creating user VPNs 704 IntentFilter intentFilter = new IntentFilter(); 705 intentFilter.addAction(Intent.ACTION_USER_STARTING); 706 intentFilter.addAction(Intent.ACTION_USER_STOPPING); 707 mContext.registerReceiverAsUser( 708 mUserIntentReceiver, UserHandle.ALL, intentFilter, null, null); 709 mClat = new Nat464Xlat(mContext, mNetd, this, mTrackerHandler); 710 711 try { 712 mNetd.registerObserver(mTethering); 713 mNetd.registerObserver(mDataActivityObserver); 714 mNetd.registerObserver(mClat); 715 } catch (RemoteException e) { 716 loge("Error registering observer :" + e); 717 } 718 719 if (DBG) { 720 mInetLog = new ArrayList(); 721 } 722 723 mSettingsObserver = new SettingsObserver(mHandler, EVENT_APPLY_GLOBAL_HTTP_PROXY); 724 mSettingsObserver.observe(mContext); 725 726 mDataConnectionStats = new DataConnectionStats(mContext); 727 mDataConnectionStats.startMonitoring(); 728 729 mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE); 730 731 IntentFilter filter = new IntentFilter(); 732 filter.addAction(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 733 mContext.registerReceiver( 734 new BroadcastReceiver() { 735 @Override 736 public void onReceive(Context context, Intent intent) { 737 String action = intent.getAction(); 738 if (action.equals(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED)) { 739 mHandler.sendMessage(mHandler.obtainMessage 740 (EVENT_SAMPLE_INTERVAL_ELAPSED)); 741 } 742 } 743 }, 744 new IntentFilter(filter)); 745 746 mPacManager = new PacManager(mContext, mHandler, EVENT_PROXY_HAS_CHANGED); 747 748 filter = new IntentFilter(); 749 filter.addAction(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 750 mContext.registerReceiver(mProvisioningReceiver, filter); 751 752 mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); 753 } 754 755 private synchronized int nextNetworkRequestId() { 756 return mNextNetworkRequestId++; 757 } 758 759 private void assignNextNetId(NetworkAgentInfo nai) { 760 synchronized (mNetworkForNetId) { 761 for (int i = MIN_NET_ID; i <= MAX_NET_ID; i++) { 762 int netId = mNextNetId; 763 if (++mNextNetId > MAX_NET_ID) mNextNetId = MIN_NET_ID; 764 // Make sure NetID unused. http://b/16815182 765 if (mNetworkForNetId.get(netId) == null) { 766 nai.network = new Network(netId); 767 mNetworkForNetId.put(netId, nai); 768 return; 769 } 770 } 771 } 772 throw new IllegalStateException("No free netIds"); 773 } 774 775 private int getConnectivityChangeDelay() { 776 final ContentResolver cr = mContext.getContentResolver(); 777 778 /** Check system properties for the default value then use secure settings value, if any. */ 779 int defaultDelay = SystemProperties.getInt( 780 "conn." + Settings.Global.CONNECTIVITY_CHANGE_DELAY, 781 ConnectivityManager.CONNECTIVITY_CHANGE_DELAY_DEFAULT); 782 return Settings.Global.getInt(cr, Settings.Global.CONNECTIVITY_CHANGE_DELAY, 783 defaultDelay); 784 } 785 786 private boolean teardown(NetworkStateTracker netTracker) { 787 if (netTracker.teardown()) { 788 netTracker.setTeardownRequested(true); 789 return true; 790 } else { 791 return false; 792 } 793 } 794 795 /** 796 * Check if UID should be blocked from using the network represented by the given networkType. 797 * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. 798 */ 799 private boolean isNetworkBlocked(int networkType, int uid) { 800 return isNetworkWithLinkPropertiesBlocked(getLinkPropertiesForType(networkType), uid); 801 } 802 803 /** 804 * Check if UID should be blocked from using the network represented by the given 805 * NetworkAgentInfo. 806 */ 807 private boolean isNetworkBlocked(NetworkAgentInfo nai, int uid) { 808 return isNetworkWithLinkPropertiesBlocked(nai.linkProperties, uid); 809 } 810 811 /** 812 * Check if UID should be blocked from using the network with the given LinkProperties. 813 */ 814 private boolean isNetworkWithLinkPropertiesBlocked(LinkProperties lp, int uid) { 815 final boolean networkCostly; 816 final int uidRules; 817 818 final String iface = (lp == null ? "" : lp.getInterfaceName()); 819 synchronized (mRulesLock) { 820 networkCostly = mMeteredIfaces.contains(iface); 821 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 822 } 823 824 if (networkCostly && (uidRules & RULE_REJECT_METERED) != 0) { 825 return true; 826 } 827 828 // no restrictive rules; network is visible 829 return false; 830 } 831 832 /** 833 * Return a filtered {@link NetworkInfo}, potentially marked 834 * {@link DetailedState#BLOCKED} based on 835 * {@link #isNetworkBlocked}. 836 * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. 837 */ 838 private NetworkInfo getFilteredNetworkInfo(int networkType, int uid) { 839 NetworkInfo info = getNetworkInfoForType(networkType); 840 return getFilteredNetworkInfo(info, networkType, uid); 841 } 842 843 /* 844 * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. 845 */ 846 private NetworkInfo getFilteredNetworkInfo(NetworkInfo info, int networkType, int uid) { 847 if (isNetworkBlocked(networkType, uid)) { 848 // network is blocked; clone and override state 849 info = new NetworkInfo(info); 850 info.setDetailedState(DetailedState.BLOCKED, null, null); 851 if (VDBG) log("returning Blocked NetworkInfo"); 852 } 853 if (mLockdownTracker != null) { 854 info = mLockdownTracker.augmentNetworkInfo(info); 855 if (VDBG) log("returning Locked NetworkInfo"); 856 } 857 return info; 858 } 859 860 private NetworkInfo getFilteredNetworkInfo(NetworkAgentInfo nai, int uid) { 861 NetworkInfo info = nai.networkInfo; 862 if (isNetworkBlocked(nai, uid)) { 863 // network is blocked; clone and override state 864 info = new NetworkInfo(info); 865 info.setDetailedState(DetailedState.BLOCKED, null, null); 866 if (DBG) log("returning Blocked NetworkInfo"); 867 } 868 if (mLockdownTracker != null) { 869 info = mLockdownTracker.augmentNetworkInfo(info); 870 if (DBG) log("returning Locked NetworkInfo"); 871 } 872 return info; 873 } 874 875 /** 876 * Return NetworkInfo for the active (i.e., connected) network interface. 877 * It is assumed that at most one network is active at a time. If more 878 * than one is active, it is indeterminate which will be returned. 879 * @return the info for the active network, or {@code null} if none is 880 * active 881 */ 882 @Override 883 public NetworkInfo getActiveNetworkInfo() { 884 enforceAccessPermission(); 885 final int uid = Binder.getCallingUid(); 886 return getNetworkInfo(mActiveDefaultNetwork, uid); 887 } 888 889 /** 890 * Find the first Provisioning network. 891 * 892 * @return NetworkInfo or null if none. 893 */ 894 private NetworkInfo getProvisioningNetworkInfo() { 895 enforceAccessPermission(); 896 897 // Find the first Provisioning Network 898 NetworkInfo provNi = null; 899 for (NetworkInfo ni : getAllNetworkInfo()) { 900 if (ni.isConnectedToProvisioningNetwork()) { 901 provNi = ni; 902 break; 903 } 904 } 905 if (DBG) log("getProvisioningNetworkInfo: X provNi=" + provNi); 906 return provNi; 907 } 908 909 /** 910 * Find the first Provisioning network or the ActiveDefaultNetwork 911 * if there is no Provisioning network 912 * 913 * @return NetworkInfo or null if none. 914 */ 915 @Override 916 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 917 enforceAccessPermission(); 918 919 NetworkInfo provNi = getProvisioningNetworkInfo(); 920 if (provNi == null) { 921 final int uid = Binder.getCallingUid(); 922 provNi = getNetworkInfo(mActiveDefaultNetwork, uid); 923 } 924 if (DBG) log("getProvisioningOrActiveNetworkInfo: X provNi=" + provNi); 925 return provNi; 926 } 927 928 public NetworkInfo getActiveNetworkInfoUnfiltered() { 929 enforceAccessPermission(); 930 if (isNetworkTypeValid(mActiveDefaultNetwork)) { 931 return getNetworkInfoForType(mActiveDefaultNetwork); 932 } 933 return null; 934 } 935 936 @Override 937 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 938 enforceConnectivityInternalPermission(); 939 return getNetworkInfo(mActiveDefaultNetwork, uid); 940 } 941 942 @Override 943 public NetworkInfo getNetworkInfo(int networkType) { 944 enforceAccessPermission(); 945 final int uid = Binder.getCallingUid(); 946 return getNetworkInfo(networkType, uid); 947 } 948 949 private NetworkInfo getNetworkInfo(int networkType, int uid) { 950 NetworkInfo info = null; 951 if (isNetworkTypeValid(networkType)) { 952 if (getNetworkInfoForType(networkType) != null) { 953 info = getFilteredNetworkInfo(networkType, uid); 954 } 955 } 956 return info; 957 } 958 959 @Override 960 public NetworkInfo getNetworkInfoForNetwork(Network network) { 961 enforceAccessPermission(); 962 if (network == null) return null; 963 964 final int uid = Binder.getCallingUid(); 965 NetworkAgentInfo nai = null; 966 synchronized (mNetworkForNetId) { 967 nai = mNetworkForNetId.get(network.netId); 968 } 969 if (nai == null) return null; 970 synchronized (nai) { 971 if (nai.networkInfo == null) return null; 972 973 return getFilteredNetworkInfo(nai, uid); 974 } 975 } 976 977 @Override 978 public NetworkInfo[] getAllNetworkInfo() { 979 enforceAccessPermission(); 980 final int uid = Binder.getCallingUid(); 981 final ArrayList<NetworkInfo> result = Lists.newArrayList(); 982 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 983 networkType++) { 984 if (getNetworkInfoForType(networkType) != null) { 985 result.add(getFilteredNetworkInfo(networkType, uid)); 986 } 987 } 988 return result.toArray(new NetworkInfo[result.size()]); 989 } 990 991 @Override 992 public Network getNetworkForType(int networkType) { 993 enforceAccessPermission(); 994 final int uid = Binder.getCallingUid(); 995 if (isNetworkBlocked(networkType, uid)) { 996 return null; 997 } 998 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 999 return (nai == null) ? null : nai.network; 1000 } 1001 1002 @Override 1003 public Network[] getAllNetworks() { 1004 enforceAccessPermission(); 1005 final ArrayList<Network> result = new ArrayList(); 1006 synchronized (mNetworkForNetId) { 1007 for (int i = 0; i < mNetworkForNetId.size(); i++) { 1008 result.add(new Network(mNetworkForNetId.valueAt(i).network)); 1009 } 1010 } 1011 return result.toArray(new Network[result.size()]); 1012 } 1013 1014 @Override 1015 public boolean isNetworkSupported(int networkType) { 1016 enforceAccessPermission(); 1017 return (isNetworkTypeValid(networkType) && (getNetworkInfoForType(networkType) != null)); 1018 } 1019 1020 /** 1021 * Return LinkProperties for the active (i.e., connected) default 1022 * network interface. It is assumed that at most one default network 1023 * is active at a time. If more than one is active, it is indeterminate 1024 * which will be returned. 1025 * @return the ip properties for the active network, or {@code null} if 1026 * none is active 1027 */ 1028 @Override 1029 public LinkProperties getActiveLinkProperties() { 1030 return getLinkPropertiesForType(mActiveDefaultNetwork); 1031 } 1032 1033 @Override 1034 public LinkProperties getLinkPropertiesForType(int networkType) { 1035 enforceAccessPermission(); 1036 if (isNetworkTypeValid(networkType)) { 1037 return getLinkPropertiesForTypeInternal(networkType); 1038 } 1039 return null; 1040 } 1041 1042 // TODO - this should be ALL networks 1043 @Override 1044 public LinkProperties getLinkProperties(Network network) { 1045 enforceAccessPermission(); 1046 NetworkAgentInfo nai = null; 1047 synchronized (mNetworkForNetId) { 1048 nai = mNetworkForNetId.get(network.netId); 1049 } 1050 1051 if (nai != null) { 1052 synchronized (nai) { 1053 return new LinkProperties(nai.linkProperties); 1054 } 1055 } 1056 return null; 1057 } 1058 1059 @Override 1060 public NetworkCapabilities getNetworkCapabilities(Network network) { 1061 enforceAccessPermission(); 1062 NetworkAgentInfo nai = null; 1063 synchronized (mNetworkForNetId) { 1064 nai = mNetworkForNetId.get(network.netId); 1065 } 1066 if (nai != null) { 1067 synchronized (nai) { 1068 return new NetworkCapabilities(nai.networkCapabilities); 1069 } 1070 } 1071 return null; 1072 } 1073 1074 @Override 1075 public NetworkState[] getAllNetworkState() { 1076 enforceAccessPermission(); 1077 final int uid = Binder.getCallingUid(); 1078 final ArrayList<NetworkState> result = Lists.newArrayList(); 1079 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1080 networkType++) { 1081 if (getNetworkInfoForType(networkType) != null) { 1082 final NetworkInfo info = getFilteredNetworkInfo(networkType, uid); 1083 final LinkProperties lp = getLinkPropertiesForTypeInternal(networkType); 1084 final NetworkCapabilities netcap = getNetworkCapabilitiesForType(networkType); 1085 result.add(new NetworkState(info, lp, netcap)); 1086 } 1087 } 1088 return result.toArray(new NetworkState[result.size()]); 1089 } 1090 1091 private NetworkState getNetworkStateUnchecked(int networkType) { 1092 if (isNetworkTypeValid(networkType)) { 1093 NetworkInfo info = getNetworkInfoForType(networkType); 1094 if (info != null) { 1095 return new NetworkState(info, 1096 getLinkPropertiesForTypeInternal(networkType), 1097 getNetworkCapabilitiesForType(networkType)); 1098 } 1099 } 1100 return null; 1101 } 1102 1103 @Override 1104 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1105 enforceAccessPermission(); 1106 1107 final long token = Binder.clearCallingIdentity(); 1108 try { 1109 final NetworkState state = getNetworkStateUnchecked(mActiveDefaultNetwork); 1110 if (state != null) { 1111 try { 1112 return mPolicyManager.getNetworkQuotaInfo(state); 1113 } catch (RemoteException e) { 1114 } 1115 } 1116 return null; 1117 } finally { 1118 Binder.restoreCallingIdentity(token); 1119 } 1120 } 1121 1122 @Override 1123 public boolean isActiveNetworkMetered() { 1124 enforceAccessPermission(); 1125 final long token = Binder.clearCallingIdentity(); 1126 try { 1127 return isNetworkMeteredUnchecked(mActiveDefaultNetwork); 1128 } finally { 1129 Binder.restoreCallingIdentity(token); 1130 } 1131 } 1132 1133 private boolean isNetworkMeteredUnchecked(int networkType) { 1134 final NetworkState state = getNetworkStateUnchecked(networkType); 1135 if (state != null) { 1136 try { 1137 return mPolicyManager.isNetworkMetered(state); 1138 } catch (RemoteException e) { 1139 } 1140 } 1141 return false; 1142 } 1143 1144 private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { 1145 @Override 1146 public void interfaceClassDataActivityChanged(String label, boolean active, long tsNanos) { 1147 int deviceType = Integer.parseInt(label); 1148 sendDataActivityBroadcast(deviceType, active, tsNanos); 1149 } 1150 }; 1151 1152 /** 1153 * Ensure that a network route exists to deliver traffic to the specified 1154 * host via the specified network interface. 1155 * @param networkType the type of the network over which traffic to the 1156 * specified host is to be routed 1157 * @param hostAddress the IP address of the host to which the route is 1158 * desired 1159 * @return {@code true} on success, {@code false} on failure 1160 */ 1161 public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress) { 1162 enforceChangePermission(); 1163 if (mProtectedNetworks.contains(networkType)) { 1164 enforceConnectivityInternalPermission(); 1165 } 1166 1167 InetAddress addr; 1168 try { 1169 addr = InetAddress.getByAddress(hostAddress); 1170 } catch (UnknownHostException e) { 1171 if (DBG) log("requestRouteToHostAddress got " + e.toString()); 1172 return false; 1173 } 1174 1175 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1176 if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); 1177 return false; 1178 } 1179 1180 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1181 if (nai == null) { 1182 if (mLegacyTypeTracker.isTypeSupported(networkType) == false) { 1183 if (DBG) log("requestRouteToHostAddress on unsupported network: " + networkType); 1184 } else { 1185 if (DBG) log("requestRouteToHostAddress on down network: " + networkType); 1186 } 1187 return false; 1188 } 1189 1190 DetailedState netState; 1191 synchronized (nai) { 1192 netState = nai.networkInfo.getDetailedState(); 1193 } 1194 1195 if (netState != DetailedState.CONNECTED && netState != DetailedState.CAPTIVE_PORTAL_CHECK) { 1196 if (VDBG) { 1197 log("requestRouteToHostAddress on down network " 1198 + "(" + networkType + ") - dropped" 1199 + " netState=" + netState); 1200 } 1201 return false; 1202 } 1203 1204 final int uid = Binder.getCallingUid(); 1205 final long token = Binder.clearCallingIdentity(); 1206 try { 1207 LinkProperties lp; 1208 int netId; 1209 synchronized (nai) { 1210 lp = nai.linkProperties; 1211 netId = nai.network.netId; 1212 } 1213 boolean ok = addLegacyRouteToHost(lp, addr, netId, uid); 1214 if (DBG) log("requestRouteToHostAddress ok=" + ok); 1215 return ok; 1216 } finally { 1217 Binder.restoreCallingIdentity(token); 1218 } 1219 } 1220 1221 private boolean addLegacyRouteToHost(LinkProperties lp, InetAddress addr, int netId, int uid) { 1222 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), addr); 1223 if (bestRoute == null) { 1224 bestRoute = RouteInfo.makeHostRoute(addr, lp.getInterfaceName()); 1225 } else { 1226 String iface = bestRoute.getInterface(); 1227 if (bestRoute.getGateway().equals(addr)) { 1228 // if there is no better route, add the implied hostroute for our gateway 1229 bestRoute = RouteInfo.makeHostRoute(addr, iface); 1230 } else { 1231 // if we will connect to this through another route, add a direct route 1232 // to it's gateway 1233 bestRoute = RouteInfo.makeHostRoute(addr, bestRoute.getGateway(), iface); 1234 } 1235 } 1236 if (DBG) log("Adding " + bestRoute + " for interface " + bestRoute.getInterface()); 1237 try { 1238 mNetd.addLegacyRouteForNetId(netId, bestRoute, uid); 1239 } catch (Exception e) { 1240 // never crash - catch them all 1241 if (DBG) loge("Exception trying to add a route: " + e); 1242 return false; 1243 } 1244 return true; 1245 } 1246 1247 public void setDataDependency(int networkType, boolean met) { 1248 enforceConnectivityInternalPermission(); 1249 1250 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_DEPENDENCY_MET, 1251 (met ? ENABLED : DISABLED), networkType)); 1252 } 1253 1254 private void handleSetDependencyMet(int networkType, boolean met) { 1255 if (mNetTrackers[networkType] != null) { 1256 if (DBG) { 1257 log("handleSetDependencyMet(" + networkType + ", " + met + ")"); 1258 } 1259 mNetTrackers[networkType].setDependencyMet(met); 1260 } 1261 } 1262 1263 private INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() { 1264 @Override 1265 public void onUidRulesChanged(int uid, int uidRules) { 1266 // caller is NPMS, since we only register with them 1267 if (LOGD_RULES) { 1268 log("onUidRulesChanged(uid=" + uid + ", uidRules=" + uidRules + ")"); 1269 } 1270 1271 synchronized (mRulesLock) { 1272 // skip update when we've already applied rules 1273 final int oldRules = mUidRules.get(uid, RULE_ALLOW_ALL); 1274 if (oldRules == uidRules) return; 1275 1276 mUidRules.put(uid, uidRules); 1277 } 1278 1279 // TODO: notify UID when it has requested targeted updates 1280 } 1281 1282 @Override 1283 public void onMeteredIfacesChanged(String[] meteredIfaces) { 1284 // caller is NPMS, since we only register with them 1285 if (LOGD_RULES) { 1286 log("onMeteredIfacesChanged(ifaces=" + Arrays.toString(meteredIfaces) + ")"); 1287 } 1288 1289 synchronized (mRulesLock) { 1290 mMeteredIfaces.clear(); 1291 for (String iface : meteredIfaces) { 1292 mMeteredIfaces.add(iface); 1293 } 1294 } 1295 } 1296 1297 @Override 1298 public void onRestrictBackgroundChanged(boolean restrictBackground) { 1299 // caller is NPMS, since we only register with them 1300 if (LOGD_RULES) { 1301 log("onRestrictBackgroundChanged(restrictBackground=" + restrictBackground + ")"); 1302 } 1303 1304 // kick off connectivity change broadcast for active network, since 1305 // global background policy change is radical. 1306 final int networkType = mActiveDefaultNetwork; 1307 if (isNetworkTypeValid(networkType)) { 1308 final NetworkStateTracker tracker = mNetTrackers[networkType]; 1309 if (tracker != null) { 1310 final NetworkInfo info = tracker.getNetworkInfo(); 1311 if (info != null && info.isConnected()) { 1312 sendConnectedBroadcast(info); 1313 } 1314 } 1315 } 1316 } 1317 }; 1318 1319 @Override 1320 public void setPolicyDataEnable(int networkType, boolean enabled) { 1321 // only someone like NPMS should only be calling us 1322 mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); 1323 1324 mHandler.sendMessage(mHandler.obtainMessage( 1325 EVENT_SET_POLICY_DATA_ENABLE, networkType, (enabled ? ENABLED : DISABLED))); 1326 } 1327 1328 private void handleSetPolicyDataEnable(int networkType, boolean enabled) { 1329 // TODO - handle this passing to factories 1330// if (isNetworkTypeValid(networkType)) { 1331// final NetworkStateTracker tracker = mNetTrackers[networkType]; 1332// if (tracker != null) { 1333// tracker.setPolicyDataEnable(enabled); 1334// } 1335// } 1336 } 1337 1338 private void enforceInternetPermission() { 1339 mContext.enforceCallingOrSelfPermission( 1340 android.Manifest.permission.INTERNET, 1341 "ConnectivityService"); 1342 } 1343 1344 private void enforceAccessPermission() { 1345 mContext.enforceCallingOrSelfPermission( 1346 android.Manifest.permission.ACCESS_NETWORK_STATE, 1347 "ConnectivityService"); 1348 } 1349 1350 private void enforceChangePermission() { 1351 mContext.enforceCallingOrSelfPermission( 1352 android.Manifest.permission.CHANGE_NETWORK_STATE, 1353 "ConnectivityService"); 1354 } 1355 1356 private void enforceTetherAccessPermission() { 1357 mContext.enforceCallingOrSelfPermission( 1358 android.Manifest.permission.ACCESS_NETWORK_STATE, 1359 "ConnectivityService"); 1360 } 1361 1362 private void enforceConnectivityInternalPermission() { 1363 mContext.enforceCallingOrSelfPermission( 1364 android.Manifest.permission.CONNECTIVITY_INTERNAL, 1365 "ConnectivityService"); 1366 } 1367 1368 public void sendConnectedBroadcast(NetworkInfo info) { 1369 enforceConnectivityInternalPermission(); 1370 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1371 sendGeneralBroadcast(info, CONNECTIVITY_ACTION); 1372 } 1373 1374 private void sendConnectedBroadcastDelayed(NetworkInfo info, int delayMs) { 1375 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1376 sendGeneralBroadcastDelayed(info, CONNECTIVITY_ACTION, delayMs); 1377 } 1378 1379 private void sendInetConditionBroadcast(NetworkInfo info) { 1380 sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION); 1381 } 1382 1383 private Intent makeGeneralIntent(NetworkInfo info, String bcastType) { 1384 if (mLockdownTracker != null) { 1385 info = mLockdownTracker.augmentNetworkInfo(info); 1386 } 1387 1388 Intent intent = new Intent(bcastType); 1389 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 1390 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 1391 if (info.isFailover()) { 1392 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 1393 info.setFailover(false); 1394 } 1395 if (info.getReason() != null) { 1396 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 1397 } 1398 if (info.getExtraInfo() != null) { 1399 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 1400 info.getExtraInfo()); 1401 } 1402 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 1403 return intent; 1404 } 1405 1406 private void sendGeneralBroadcast(NetworkInfo info, String bcastType) { 1407 sendStickyBroadcast(makeGeneralIntent(info, bcastType)); 1408 } 1409 1410 private void sendGeneralBroadcastDelayed(NetworkInfo info, String bcastType, int delayMs) { 1411 sendStickyBroadcastDelayed(makeGeneralIntent(info, bcastType), delayMs); 1412 } 1413 1414 private void sendDataActivityBroadcast(int deviceType, boolean active, long tsNanos) { 1415 Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); 1416 intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); 1417 intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); 1418 intent.putExtra(ConnectivityManager.EXTRA_REALTIME_NS, tsNanos); 1419 final long ident = Binder.clearCallingIdentity(); 1420 try { 1421 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, 1422 RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); 1423 } finally { 1424 Binder.restoreCallingIdentity(ident); 1425 } 1426 } 1427 1428 private void sendStickyBroadcast(Intent intent) { 1429 synchronized(this) { 1430 if (!mSystemReady) { 1431 mInitialBroadcast = new Intent(intent); 1432 } 1433 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1434 if (DBG) { 1435 log("sendStickyBroadcast: action=" + intent.getAction()); 1436 } 1437 1438 final long ident = Binder.clearCallingIdentity(); 1439 try { 1440 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1441 } finally { 1442 Binder.restoreCallingIdentity(ident); 1443 } 1444 } 1445 } 1446 1447 private void sendStickyBroadcastDelayed(Intent intent, int delayMs) { 1448 if (delayMs <= 0) { 1449 sendStickyBroadcast(intent); 1450 } else { 1451 if (VDBG) { 1452 log("sendStickyBroadcastDelayed: delayMs=" + delayMs + ", action=" 1453 + intent.getAction()); 1454 } 1455 mHandler.sendMessageDelayed(mHandler.obtainMessage( 1456 EVENT_SEND_STICKY_BROADCAST_INTENT, intent), delayMs); 1457 } 1458 } 1459 1460 void systemReady() { 1461 // start network sampling .. 1462 Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 1463 intent.setPackage(mContext.getPackageName()); 1464 1465 mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, 1466 SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); 1467 setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); 1468 1469 loadGlobalProxy(); 1470 1471 synchronized(this) { 1472 mSystemReady = true; 1473 if (mInitialBroadcast != null) { 1474 mContext.sendStickyBroadcastAsUser(mInitialBroadcast, UserHandle.ALL); 1475 mInitialBroadcast = null; 1476 } 1477 } 1478 // load the global proxy at startup 1479 mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY)); 1480 1481 // Try bringing up tracker, but if KeyStore isn't ready yet, wait 1482 // for user to unlock device. 1483 if (!updateLockdownVpn()) { 1484 final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_PRESENT); 1485 mContext.registerReceiver(mUserPresentReceiver, filter); 1486 } 1487 1488 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SYSTEM_READY)); 1489 } 1490 1491 private BroadcastReceiver mUserPresentReceiver = new BroadcastReceiver() { 1492 @Override 1493 public void onReceive(Context context, Intent intent) { 1494 // Try creating lockdown tracker, since user present usually means 1495 // unlocked keystore. 1496 if (updateLockdownVpn()) { 1497 mContext.unregisterReceiver(this); 1498 } 1499 } 1500 }; 1501 1502 /** @hide */ 1503 @Override 1504 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 1505 enforceConnectivityInternalPermission(); 1506 if (DBG) log("captivePortalCheckCompleted: ni=" + info + " captive=" + isCaptivePortal); 1507// mNetTrackers[info.getType()].captivePortalCheckCompleted(isCaptivePortal); 1508 } 1509 1510 /** 1511 * Setup data activity tracking for the given network. 1512 * 1513 * Every {@code setupDataActivityTracking} should be paired with a 1514 * {@link #removeDataActivityTracking} for cleanup. 1515 */ 1516 private void setupDataActivityTracking(NetworkAgentInfo networkAgent) { 1517 final String iface = networkAgent.linkProperties.getInterfaceName(); 1518 1519 final int timeout; 1520 int type = ConnectivityManager.TYPE_NONE; 1521 1522 if (networkAgent.networkCapabilities.hasTransport( 1523 NetworkCapabilities.TRANSPORT_CELLULAR)) { 1524 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1525 Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, 1526 5); 1527 type = ConnectivityManager.TYPE_MOBILE; 1528 } else if (networkAgent.networkCapabilities.hasTransport( 1529 NetworkCapabilities.TRANSPORT_WIFI)) { 1530 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1531 Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, 1532 0); 1533 type = ConnectivityManager.TYPE_WIFI; 1534 } else { 1535 // do not track any other networks 1536 timeout = 0; 1537 } 1538 1539 if (timeout > 0 && iface != null && type != ConnectivityManager.TYPE_NONE) { 1540 try { 1541 mNetd.addIdleTimer(iface, timeout, type); 1542 } catch (Exception e) { 1543 // You shall not crash! 1544 loge("Exception in setupDataActivityTracking " + e); 1545 } 1546 } 1547 } 1548 1549 /** 1550 * Remove data activity tracking when network disconnects. 1551 */ 1552 private void removeDataActivityTracking(NetworkAgentInfo networkAgent) { 1553 final String iface = networkAgent.linkProperties.getInterfaceName(); 1554 final NetworkCapabilities caps = networkAgent.networkCapabilities; 1555 1556 if (iface != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) || 1557 caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))) { 1558 try { 1559 // the call fails silently if no idletimer setup for this interface 1560 mNetd.removeIdleTimer(iface); 1561 } catch (Exception e) { 1562 loge("Exception in removeDataActivityTracking " + e); 1563 } 1564 } 1565 } 1566 1567 /** 1568 * Reads the network specific MTU size from reources. 1569 * and set it on it's iface. 1570 */ 1571 private void updateMtu(LinkProperties newLp, LinkProperties oldLp) { 1572 final String iface = newLp.getInterfaceName(); 1573 final int mtu = newLp.getMtu(); 1574 if (oldLp != null && newLp.isIdenticalMtu(oldLp)) { 1575 if (VDBG) log("identical MTU - not setting"); 1576 return; 1577 } 1578 1579 if (LinkProperties.isValidMtu(mtu, newLp.hasGlobalIPv6Address()) == false) { 1580 loge("Unexpected mtu value: " + mtu + ", " + iface); 1581 return; 1582 } 1583 1584 // Cannot set MTU without interface name 1585 if (TextUtils.isEmpty(iface)) { 1586 loge("Setting MTU size with null iface."); 1587 return; 1588 } 1589 1590 try { 1591 if (DBG) log("Setting MTU size: " + iface + ", " + mtu); 1592 mNetd.setMtu(iface, mtu); 1593 } catch (Exception e) { 1594 Slog.e(TAG, "exception in setMtu()" + e); 1595 } 1596 } 1597 1598 private static final String DEFAULT_TCP_BUFFER_SIZES = "4096,87380,110208,4096,16384,110208"; 1599 1600 private void updateTcpBufferSizes(NetworkAgentInfo nai) { 1601 if (isDefaultNetwork(nai) == false) { 1602 return; 1603 } 1604 1605 String tcpBufferSizes = nai.linkProperties.getTcpBufferSizes(); 1606 String[] values = null; 1607 if (tcpBufferSizes != null) { 1608 values = tcpBufferSizes.split(","); 1609 } 1610 1611 if (values == null || values.length != 6) { 1612 if (DBG) log("Invalid tcpBufferSizes string: " + tcpBufferSizes +", using defaults"); 1613 tcpBufferSizes = DEFAULT_TCP_BUFFER_SIZES; 1614 values = tcpBufferSizes.split(","); 1615 } 1616 1617 if (tcpBufferSizes.equals(mCurrentTcpBufferSizes)) return; 1618 1619 try { 1620 if (DBG) Slog.d(TAG, "Setting tx/rx TCP buffers to " + tcpBufferSizes); 1621 1622 final String prefix = "/sys/kernel/ipv4/tcp_"; 1623 FileUtils.stringToFile(prefix + "rmem_min", values[0]); 1624 FileUtils.stringToFile(prefix + "rmem_def", values[1]); 1625 FileUtils.stringToFile(prefix + "rmem_max", values[2]); 1626 FileUtils.stringToFile(prefix + "wmem_min", values[3]); 1627 FileUtils.stringToFile(prefix + "wmem_def", values[4]); 1628 FileUtils.stringToFile(prefix + "wmem_max", values[5]); 1629 mCurrentTcpBufferSizes = tcpBufferSizes; 1630 } catch (IOException e) { 1631 loge("Can't set TCP buffer sizes:" + e); 1632 } 1633 1634 final String defaultRwndKey = "net.tcp.default_init_rwnd"; 1635 int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0); 1636 Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(), 1637 Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue); 1638 final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd"; 1639 if (rwndValue != 0) { 1640 SystemProperties.set(sysctlKey, rwndValue.toString()); 1641 } 1642 } 1643 1644 private void flushVmDnsCache() { 1645 /* 1646 * Tell the VMs to toss their DNS caches 1647 */ 1648 Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE); 1649 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); 1650 /* 1651 * Connectivity events can happen before boot has completed ... 1652 */ 1653 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1654 final long ident = Binder.clearCallingIdentity(); 1655 try { 1656 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 1657 } finally { 1658 Binder.restoreCallingIdentity(ident); 1659 } 1660 } 1661 1662 @Override 1663 public int getRestoreDefaultNetworkDelay(int networkType) { 1664 String restoreDefaultNetworkDelayStr = SystemProperties.get( 1665 NETWORK_RESTORE_DELAY_PROP_NAME); 1666 if(restoreDefaultNetworkDelayStr != null && 1667 restoreDefaultNetworkDelayStr.length() != 0) { 1668 try { 1669 return Integer.valueOf(restoreDefaultNetworkDelayStr); 1670 } catch (NumberFormatException e) { 1671 } 1672 } 1673 // if the system property isn't set, use the value for the apn type 1674 int ret = RESTORE_DEFAULT_NETWORK_DELAY; 1675 1676 if ((networkType <= ConnectivityManager.MAX_NETWORK_TYPE) && 1677 (mNetConfigs[networkType] != null)) { 1678 ret = mNetConfigs[networkType].restoreTime; 1679 } 1680 return ret; 1681 } 1682 1683 @Override 1684 protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { 1685 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1686 if (mContext.checkCallingOrSelfPermission( 1687 android.Manifest.permission.DUMP) 1688 != PackageManager.PERMISSION_GRANTED) { 1689 pw.println("Permission Denial: can't dump ConnectivityService " + 1690 "from from pid=" + Binder.getCallingPid() + ", uid=" + 1691 Binder.getCallingUid()); 1692 return; 1693 } 1694 1695 pw.println("NetworkFactories for:"); 1696 pw.increaseIndent(); 1697 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 1698 pw.println(nfi.name); 1699 } 1700 pw.decreaseIndent(); 1701 pw.println(); 1702 1703 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 1704 pw.print("Active default network: "); 1705 if (defaultNai == null) { 1706 pw.println("none"); 1707 } else { 1708 pw.println(defaultNai.network.netId); 1709 } 1710 pw.println(); 1711 1712 pw.println("Current Networks:"); 1713 pw.increaseIndent(); 1714 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 1715 pw.println(nai.toString()); 1716 pw.increaseIndent(); 1717 pw.println("Requests:"); 1718 pw.increaseIndent(); 1719 for (int i = 0; i < nai.networkRequests.size(); i++) { 1720 pw.println(nai.networkRequests.valueAt(i).toString()); 1721 } 1722 pw.decreaseIndent(); 1723 pw.println("Lingered:"); 1724 pw.increaseIndent(); 1725 for (NetworkRequest nr : nai.networkLingered) pw.println(nr.toString()); 1726 pw.decreaseIndent(); 1727 pw.decreaseIndent(); 1728 } 1729 pw.decreaseIndent(); 1730 pw.println(); 1731 1732 pw.println("Network Requests:"); 1733 pw.increaseIndent(); 1734 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 1735 pw.println(nri.toString()); 1736 } 1737 pw.println(); 1738 pw.decreaseIndent(); 1739 1740 pw.print("mActiveDefaultNetwork: " + mActiveDefaultNetwork); 1741 if (mActiveDefaultNetwork != TYPE_NONE) { 1742 NetworkInfo activeNetworkInfo = getActiveNetworkInfo(); 1743 if (activeNetworkInfo != null) { 1744 pw.print(" " + activeNetworkInfo.getState() + 1745 "/" + activeNetworkInfo.getDetailedState()); 1746 } 1747 } 1748 pw.println(); 1749 1750 pw.println("mLegacyTypeTracker:"); 1751 pw.increaseIndent(); 1752 mLegacyTypeTracker.dump(pw); 1753 pw.decreaseIndent(); 1754 pw.println(); 1755 1756 synchronized (this) { 1757 pw.println("NetworkTransitionWakeLock is currently " + 1758 (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held."); 1759 pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy); 1760 } 1761 pw.println(); 1762 1763 mTethering.dump(fd, pw, args); 1764 1765 if (mInetLog != null) { 1766 pw.println(); 1767 pw.println("Inet condition reports:"); 1768 pw.increaseIndent(); 1769 for(int i = 0; i < mInetLog.size(); i++) { 1770 pw.println(mInetLog.get(i)); 1771 } 1772 pw.decreaseIndent(); 1773 } 1774 } 1775 1776 private boolean isLiveNetworkAgent(NetworkAgentInfo nai, String msg) { 1777 if (nai.network == null) return false; 1778 final NetworkAgentInfo officialNai; 1779 synchronized (mNetworkForNetId) { 1780 officialNai = mNetworkForNetId.get(nai.network.netId); 1781 } 1782 if (officialNai != null && officialNai.equals(nai)) return true; 1783 if (officialNai != null || VDBG) { 1784 loge(msg + " - isLiveNetworkAgent found mismatched netId: " + officialNai + 1785 " - " + nai); 1786 } 1787 return false; 1788 } 1789 1790 // must be stateless - things change under us. 1791 private class NetworkStateTrackerHandler extends Handler { 1792 public NetworkStateTrackerHandler(Looper looper) { 1793 super(looper); 1794 } 1795 1796 @Override 1797 public void handleMessage(Message msg) { 1798 NetworkInfo info; 1799 switch (msg.what) { 1800 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 1801 handleAsyncChannelHalfConnect(msg); 1802 break; 1803 } 1804 case AsyncChannel.CMD_CHANNEL_DISCONNECT: { 1805 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1806 if (nai != null) nai.asyncChannel.disconnect(); 1807 break; 1808 } 1809 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 1810 handleAsyncChannelDisconnected(msg); 1811 break; 1812 } 1813 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { 1814 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1815 if (nai == null) { 1816 loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); 1817 } else { 1818 updateCapabilities(nai, (NetworkCapabilities)msg.obj); 1819 } 1820 break; 1821 } 1822 case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { 1823 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1824 if (nai == null) { 1825 loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); 1826 } else { 1827 if (VDBG) { 1828 log("Update of LinkProperties for " + nai.name() + 1829 "; created=" + nai.created); 1830 } 1831 LinkProperties oldLp = nai.linkProperties; 1832 synchronized (nai) { 1833 nai.linkProperties = (LinkProperties)msg.obj; 1834 } 1835 if (nai.created) updateLinkProperties(nai, oldLp); 1836 } 1837 break; 1838 } 1839 case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { 1840 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1841 if (nai == null) { 1842 loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); 1843 break; 1844 } 1845 info = (NetworkInfo) msg.obj; 1846 updateNetworkInfo(nai, info); 1847 break; 1848 } 1849 case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { 1850 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1851 if (nai == null) { 1852 loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); 1853 break; 1854 } 1855 Integer score = (Integer) msg.obj; 1856 if (score != null) updateNetworkScore(nai, score.intValue()); 1857 break; 1858 } 1859 case NetworkAgent.EVENT_UID_RANGES_ADDED: { 1860 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1861 if (nai == null) { 1862 loge("EVENT_UID_RANGES_ADDED from unknown NetworkAgent"); 1863 break; 1864 } 1865 try { 1866 mNetd.addVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1867 } catch (Exception e) { 1868 // Never crash! 1869 loge("Exception in addVpnUidRanges: " + e); 1870 } 1871 break; 1872 } 1873 case NetworkAgent.EVENT_UID_RANGES_REMOVED: { 1874 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1875 if (nai == null) { 1876 loge("EVENT_UID_RANGES_REMOVED from unknown NetworkAgent"); 1877 break; 1878 } 1879 try { 1880 mNetd.removeVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1881 } catch (Exception e) { 1882 // Never crash! 1883 loge("Exception in removeVpnUidRanges: " + e); 1884 } 1885 break; 1886 } 1887 case NetworkAgent.EVENT_SET_EXPLICITLY_SELECTED: { 1888 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1889 if (nai == null) { 1890 loge("EVENT_SET_EXPLICITLY_SELECTED from unknown NetworkAgent"); 1891 break; 1892 } 1893 nai.networkMisc.explicitlySelected = true; 1894 break; 1895 } 1896 case NetworkMonitor.EVENT_NETWORK_TESTED: { 1897 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1898 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_VALIDATED")) { 1899 boolean valid = (msg.arg1 == NetworkMonitor.NETWORK_TEST_RESULT_VALID); 1900 if (valid) { 1901 if (DBG) log("Validated " + nai.name()); 1902 nai.validated = true; 1903 rematchNetworkAndRequests(nai); 1904 } 1905 updateInetCondition(nai, valid); 1906 // Let the NetworkAgent know the state of its network 1907 nai.asyncChannel.sendMessage( 1908 android.net.NetworkAgent.CMD_REPORT_NETWORK_STATUS, 1909 (valid ? NetworkAgent.VALID_NETWORK : NetworkAgent.INVALID_NETWORK), 1910 0, null); 1911 } 1912 break; 1913 } 1914 case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { 1915 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1916 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_LINGER_COMPLETE")) { 1917 handleLingerComplete(nai); 1918 } 1919 break; 1920 } 1921 case NetworkMonitor.EVENT_PROVISIONING_NOTIFICATION: { 1922 if (msg.arg1 == 0) { 1923 setProvNotificationVisibleIntent(false, msg.arg2, 0, null, null); 1924 } else { 1925 NetworkAgentInfo nai = null; 1926 synchronized (mNetworkForNetId) { 1927 nai = mNetworkForNetId.get(msg.arg2); 1928 } 1929 if (nai == null) { 1930 loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); 1931 break; 1932 } 1933 setProvNotificationVisibleIntent(true, msg.arg2, nai.networkInfo.getType(), 1934 nai.networkInfo.getExtraInfo(), (PendingIntent)msg.obj); 1935 } 1936 break; 1937 } 1938 case NetworkStateTracker.EVENT_STATE_CHANGED: { 1939 info = (NetworkInfo) msg.obj; 1940 NetworkInfo.State state = info.getState(); 1941 1942 if (VDBG || (state == NetworkInfo.State.CONNECTED) || 1943 (state == NetworkInfo.State.DISCONNECTED) || 1944 (state == NetworkInfo.State.SUSPENDED)) { 1945 log("ConnectivityChange for " + 1946 info.getTypeName() + ": " + 1947 state + "/" + info.getDetailedState()); 1948 } 1949 1950 // Since mobile has the notion of a network/apn that can be used for 1951 // provisioning we need to check every time we're connected as 1952 // CaptiveProtalTracker won't detected it because DCT doesn't report it 1953 // as connected as ACTION_ANY_DATA_CONNECTION_STATE_CHANGED instead its 1954 // reported as ACTION_DATA_CONNECTION_CONNECTED_TO_PROVISIONING_APN. Which 1955 // is received by MDST and sent here as EVENT_STATE_CHANGED. 1956 if (ConnectivityManager.isNetworkTypeMobile(info.getType()) 1957 && (0 != Settings.Global.getInt(mContext.getContentResolver(), 1958 Settings.Global.DEVICE_PROVISIONED, 0)) 1959 && (((state == NetworkInfo.State.CONNECTED) 1960 && (info.getType() == ConnectivityManager.TYPE_MOBILE)) 1961 || info.isConnectedToProvisioningNetwork())) { 1962 log("ConnectivityChange checkMobileProvisioning for" 1963 + " TYPE_MOBILE or ProvisioningNetwork"); 1964 checkMobileProvisioning(CheckMp.MAX_TIMEOUT_MS); 1965 } 1966 1967 EventLogTags.writeConnectivityStateChanged( 1968 info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); 1969 1970 if (info.isConnectedToProvisioningNetwork()) { 1971 /** 1972 * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING 1973 * for now its an in between network, its a network that 1974 * is actually a default network but we don't want it to be 1975 * announced as such to keep background applications from 1976 * trying to use it. It turns out that some still try so we 1977 * take the additional step of clearing any default routes 1978 * to the link that may have incorrectly setup by the lower 1979 * levels. 1980 */ 1981 LinkProperties lp = getLinkPropertiesForTypeInternal(info.getType()); 1982 if (DBG) { 1983 log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); 1984 } 1985 1986 // Clear any default routes setup by the radio so 1987 // any activity by applications trying to use this 1988 // connection will fail until the provisioning network 1989 // is enabled. 1990 /* 1991 for (RouteInfo r : lp.getRoutes()) { 1992 removeRoute(lp, r, TO_DEFAULT_TABLE, 1993 mNetTrackers[info.getType()].getNetwork().netId); 1994 } 1995 */ 1996 } else if (state == NetworkInfo.State.DISCONNECTED) { 1997 } else if (state == NetworkInfo.State.SUSPENDED) { 1998 } else if (state == NetworkInfo.State.CONNECTED) { 1999 // handleConnect(info); 2000 } 2001 if (mLockdownTracker != null) { 2002 mLockdownTracker.onNetworkInfoChanged(info); 2003 } 2004 break; 2005 } 2006 case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { 2007 info = (NetworkInfo) msg.obj; 2008 // TODO: Temporary allowing network configuration 2009 // change not resetting sockets. 2010 // @see bug/4455071 2011 /* 2012 handleConnectivityChange(info.getType(), mCurrentLinkProperties[info.getType()], 2013 false); 2014 */ 2015 break; 2016 } 2017 } 2018 } 2019 } 2020 2021 private void handleAsyncChannelHalfConnect(Message msg) { 2022 AsyncChannel ac = (AsyncChannel) msg.obj; 2023 if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { 2024 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2025 if (VDBG) log("NetworkFactory connected"); 2026 // A network factory has connected. Send it all current NetworkRequests. 2027 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 2028 if (nri.isRequest == false) continue; 2029 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2030 ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, 2031 (nai != null ? nai.getCurrentScore() : 0), 0, nri.request); 2032 } 2033 } else { 2034 loge("Error connecting NetworkFactory"); 2035 mNetworkFactoryInfos.remove(msg.obj); 2036 } 2037 } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { 2038 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2039 if (VDBG) log("NetworkAgent connected"); 2040 // A network agent has requested a connection. Establish the connection. 2041 mNetworkAgentInfos.get(msg.replyTo).asyncChannel. 2042 sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 2043 } else { 2044 loge("Error connecting NetworkAgent"); 2045 NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); 2046 if (nai != null) { 2047 synchronized (mNetworkForNetId) { 2048 mNetworkForNetId.remove(nai.network.netId); 2049 } 2050 // Just in case. 2051 mLegacyTypeTracker.remove(nai); 2052 } 2053 } 2054 } 2055 } 2056 private void handleAsyncChannelDisconnected(Message msg) { 2057 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 2058 if (nai != null) { 2059 if (DBG) { 2060 log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); 2061 } 2062 // A network agent has disconnected. 2063 if (nai.created) { 2064 // Tell netd to clean up the configuration for this network 2065 // (routing rules, DNS, etc). 2066 try { 2067 mNetd.removeNetwork(nai.network.netId); 2068 } catch (Exception e) { 2069 loge("Exception removing network: " + e); 2070 } 2071 } 2072 // TODO - if we move the logic to the network agent (have them disconnect 2073 // because they lost all their requests or because their score isn't good) 2074 // then they would disconnect organically, report their new state and then 2075 // disconnect the channel. 2076 if (nai.networkInfo.isConnected()) { 2077 nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, 2078 null, null); 2079 } 2080 if (isDefaultNetwork(nai)) { 2081 mDefaultInetConditionPublished = 0; 2082 } 2083 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); 2084 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); 2085 mNetworkAgentInfos.remove(msg.replyTo); 2086 updateClat(null, nai.linkProperties, nai); 2087 mLegacyTypeTracker.remove(nai); 2088 synchronized (mNetworkForNetId) { 2089 mNetworkForNetId.remove(nai.network.netId); 2090 } 2091 // Since we've lost the network, go through all the requests that 2092 // it was satisfying and see if any other factory can satisfy them. 2093 final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); 2094 for (int i = 0; i < nai.networkRequests.size(); i++) { 2095 NetworkRequest request = nai.networkRequests.valueAt(i); 2096 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); 2097 if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { 2098 if (DBG) { 2099 log("Checking for replacement network to handle request " + request ); 2100 } 2101 mNetworkForRequestId.remove(request.requestId); 2102 sendUpdatedScoreToFactories(request, 0); 2103 NetworkAgentInfo alternative = null; 2104 for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { 2105 NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); 2106 if (existing.networkInfo.isConnected() && 2107 request.networkCapabilities.satisfiedByNetworkCapabilities( 2108 existing.networkCapabilities) && 2109 (alternative == null || 2110 alternative.getCurrentScore() < existing.getCurrentScore())) { 2111 alternative = existing; 2112 } 2113 } 2114 if (alternative != null) { 2115 if (DBG) log(" found replacement in " + alternative.name()); 2116 if (!toActivate.contains(alternative)) { 2117 toActivate.add(alternative); 2118 } 2119 } 2120 } 2121 } 2122 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 2123 removeDataActivityTracking(nai); 2124 mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; 2125 requestNetworkTransitionWakelock(nai.name()); 2126 } 2127 for (NetworkAgentInfo networkToActivate : toActivate) { 2128 networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2129 } 2130 } 2131 } 2132 2133 private void handleRegisterNetworkRequest(Message msg) { 2134 final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); 2135 final NetworkCapabilities newCap = nri.request.networkCapabilities; 2136 int score = 0; 2137 2138 // Check for the best currently alive network that satisfies this request 2139 NetworkAgentInfo bestNetwork = null; 2140 for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { 2141 if (DBG) log("handleRegisterNetworkRequest checking " + network.name()); 2142 if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { 2143 if (DBG) log("apparently satisfied. currentScore=" + network.getCurrentScore()); 2144 if ((bestNetwork == null) || 2145 bestNetwork.getCurrentScore() < network.getCurrentScore()) { 2146 if (!nri.isRequest) { 2147 // Not setting bestNetwork here as a listening NetworkRequest may be 2148 // satisfied by multiple Networks. Instead the request is added to 2149 // each satisfying Network and notified about each. 2150 network.addRequest(nri.request); 2151 notifyNetworkCallback(network, nri); 2152 } else { 2153 bestNetwork = network; 2154 } 2155 } 2156 } 2157 } 2158 if (bestNetwork != null) { 2159 if (DBG) log("using " + bestNetwork.name()); 2160 if (bestNetwork.networkInfo.isConnected()) { 2161 // Cancel any lingering so the linger timeout doesn't teardown this network 2162 // even though we have a request for it. 2163 bestNetwork.networkLingered.clear(); 2164 bestNetwork.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2165 } 2166 bestNetwork.addRequest(nri.request); 2167 mNetworkForRequestId.put(nri.request.requestId, bestNetwork); 2168 notifyNetworkCallback(bestNetwork, nri); 2169 score = bestNetwork.getCurrentScore(); 2170 if (nri.request.legacyType != TYPE_NONE) { 2171 mLegacyTypeTracker.add(nri.request.legacyType, bestNetwork); 2172 } 2173 } 2174 mNetworkRequests.put(nri.request, nri); 2175 if (nri.isRequest) { 2176 if (DBG) log("sending new NetworkRequest to factories"); 2177 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2178 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 2179 0, nri.request); 2180 } 2181 } 2182 } 2183 2184 private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) { 2185 NetworkRequestInfo nri = mNetworkRequests.get(request); 2186 if (nri != null) { 2187 if (Process.SYSTEM_UID != callingUid && nri.mUid != callingUid) { 2188 if (DBG) log("Attempt to release unowned NetworkRequest " + request); 2189 return; 2190 } 2191 if (DBG) log("releasing NetworkRequest " + request); 2192 nri.unlinkDeathRecipient(); 2193 mNetworkRequests.remove(request); 2194 if (nri.isRequest) { 2195 // Find all networks that are satisfying this request and remove the request 2196 // from their request lists. 2197 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2198 if (nai.networkRequests.get(nri.request.requestId) != null) { 2199 nai.networkRequests.remove(nri.request.requestId); 2200 if (DBG) { 2201 log(" Removing from current network " + nai.name() + 2202 ", leaving " + nai.networkRequests.size() + 2203 " requests."); 2204 } 2205 // check if has any requests remaining and if not, 2206 // disconnect (unless it's a VPN). 2207 boolean keep = nai.isVPN(); 2208 for (int i = 0; i < nai.networkRequests.size() && !keep; i++) { 2209 NetworkRequest r = nai.networkRequests.valueAt(i); 2210 if (mNetworkRequests.get(r).isRequest) keep = true; 2211 } 2212 if (!keep) { 2213 if (DBG) log("no live requests for " + nai.name() + "; disconnecting"); 2214 nai.asyncChannel.disconnect(); 2215 } 2216 } 2217 } 2218 2219 // Maintain the illusion. When this request arrived, we might have preteneded 2220 // that a network connected to serve it, even though the network was already 2221 // connected. Now that this request has gone away, we might have to pretend 2222 // that the network disconnected. LegacyTypeTracker will generate that 2223 // phatom disconnect for this type. 2224 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2225 if (nai != null) { 2226 mNetworkForRequestId.remove(nri.request.requestId); 2227 if (nri.request.legacyType != TYPE_NONE) { 2228 mLegacyTypeTracker.remove(nri.request.legacyType, nai); 2229 } 2230 } 2231 2232 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2233 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 2234 nri.request); 2235 } 2236 } else { 2237 // listens don't have a singular affectedNetwork. Check all networks to see 2238 // if this listen request applies and remove it. 2239 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2240 nai.networkRequests.remove(nri.request.requestId); 2241 } 2242 } 2243 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 2244 } 2245 } 2246 2247 private class InternalHandler extends Handler { 2248 public InternalHandler(Looper looper) { 2249 super(looper); 2250 } 2251 2252 @Override 2253 public void handleMessage(Message msg) { 2254 NetworkInfo info; 2255 switch (msg.what) { 2256 case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: 2257 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 2258 String causedBy = null; 2259 synchronized (ConnectivityService.this) { 2260 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 2261 mNetTransitionWakeLock.isHeld()) { 2262 mNetTransitionWakeLock.release(); 2263 causedBy = mNetTransitionWakeLockCausedBy; 2264 } else { 2265 break; 2266 } 2267 } 2268 if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { 2269 log("Failed to find a new network - expiring NetTransition Wakelock"); 2270 } else { 2271 log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + 2272 " cleared because we found a replacement network"); 2273 } 2274 break; 2275 } 2276 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 2277 handleDeprecatedGlobalHttpProxy(); 2278 break; 2279 } 2280 case EVENT_SET_DEPENDENCY_MET: { 2281 boolean met = (msg.arg1 == ENABLED); 2282 handleSetDependencyMet(msg.arg2, met); 2283 break; 2284 } 2285 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 2286 Intent intent = (Intent)msg.obj; 2287 sendStickyBroadcast(intent); 2288 break; 2289 } 2290 case EVENT_SET_POLICY_DATA_ENABLE: { 2291 final int networkType = msg.arg1; 2292 final boolean enabled = msg.arg2 == ENABLED; 2293 handleSetPolicyDataEnable(networkType, enabled); 2294 break; 2295 } 2296 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 2297 int tag = mEnableFailFastMobileDataTag.get(); 2298 if (msg.arg1 == tag) { 2299 MobileDataStateTracker mobileDst = 2300 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2301 if (mobileDst != null) { 2302 mobileDst.setEnableFailFastMobileData(msg.arg2); 2303 } 2304 } else { 2305 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 2306 + " != tag:" + tag); 2307 } 2308 break; 2309 } 2310 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 2311 handleNetworkSamplingTimeout(); 2312 break; 2313 } 2314 case EVENT_PROXY_HAS_CHANGED: { 2315 handleApplyDefaultProxy((ProxyInfo)msg.obj); 2316 break; 2317 } 2318 case EVENT_REGISTER_NETWORK_FACTORY: { 2319 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 2320 break; 2321 } 2322 case EVENT_UNREGISTER_NETWORK_FACTORY: { 2323 handleUnregisterNetworkFactory((Messenger)msg.obj); 2324 break; 2325 } 2326 case EVENT_REGISTER_NETWORK_AGENT: { 2327 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 2328 break; 2329 } 2330 case EVENT_REGISTER_NETWORK_REQUEST: 2331 case EVENT_REGISTER_NETWORK_LISTENER: { 2332 handleRegisterNetworkRequest(msg); 2333 break; 2334 } 2335 case EVENT_RELEASE_NETWORK_REQUEST: { 2336 handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); 2337 break; 2338 } 2339 case EVENT_SYSTEM_READY: { 2340 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2341 nai.networkMonitor.systemReady = true; 2342 } 2343 break; 2344 } 2345 } 2346 } 2347 } 2348 2349 // javadoc from interface 2350 public int tether(String iface) { 2351 ConnectivityManager.enforceTetherChangePermission(mContext); 2352 if (isTetheringSupported()) { 2353 return mTethering.tether(iface); 2354 } else { 2355 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2356 } 2357 } 2358 2359 // javadoc from interface 2360 public int untether(String iface) { 2361 ConnectivityManager.enforceTetherChangePermission(mContext); 2362 2363 if (isTetheringSupported()) { 2364 return mTethering.untether(iface); 2365 } else { 2366 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2367 } 2368 } 2369 2370 // javadoc from interface 2371 public int getLastTetherError(String iface) { 2372 enforceTetherAccessPermission(); 2373 2374 if (isTetheringSupported()) { 2375 return mTethering.getLastTetherError(iface); 2376 } else { 2377 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2378 } 2379 } 2380 2381 // TODO - proper iface API for selection by property, inspection, etc 2382 public String[] getTetherableUsbRegexs() { 2383 enforceTetherAccessPermission(); 2384 if (isTetheringSupported()) { 2385 return mTethering.getTetherableUsbRegexs(); 2386 } else { 2387 return new String[0]; 2388 } 2389 } 2390 2391 public String[] getTetherableWifiRegexs() { 2392 enforceTetherAccessPermission(); 2393 if (isTetheringSupported()) { 2394 return mTethering.getTetherableWifiRegexs(); 2395 } else { 2396 return new String[0]; 2397 } 2398 } 2399 2400 public String[] getTetherableBluetoothRegexs() { 2401 enforceTetherAccessPermission(); 2402 if (isTetheringSupported()) { 2403 return mTethering.getTetherableBluetoothRegexs(); 2404 } else { 2405 return new String[0]; 2406 } 2407 } 2408 2409 public int setUsbTethering(boolean enable) { 2410 ConnectivityManager.enforceTetherChangePermission(mContext); 2411 if (isTetheringSupported()) { 2412 return mTethering.setUsbTethering(enable); 2413 } else { 2414 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2415 } 2416 } 2417 2418 // TODO - move iface listing, queries, etc to new module 2419 // javadoc from interface 2420 public String[] getTetherableIfaces() { 2421 enforceTetherAccessPermission(); 2422 return mTethering.getTetherableIfaces(); 2423 } 2424 2425 public String[] getTetheredIfaces() { 2426 enforceTetherAccessPermission(); 2427 return mTethering.getTetheredIfaces(); 2428 } 2429 2430 public String[] getTetheringErroredIfaces() { 2431 enforceTetherAccessPermission(); 2432 return mTethering.getErroredIfaces(); 2433 } 2434 2435 public String[] getTetheredDhcpRanges() { 2436 enforceConnectivityInternalPermission(); 2437 return mTethering.getTetheredDhcpRanges(); 2438 } 2439 2440 // if ro.tether.denied = true we default to no tethering 2441 // gservices could set the secure setting to 1 though to enable it on a build where it 2442 // had previously been turned off. 2443 public boolean isTetheringSupported() { 2444 enforceTetherAccessPermission(); 2445 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 2446 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 2447 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0) 2448 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); 2449 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 2450 mTethering.getTetherableWifiRegexs().length != 0 || 2451 mTethering.getTetherableBluetoothRegexs().length != 0) && 2452 mTethering.getUpstreamIfaceTypes().length != 0); 2453 } 2454 2455 // Called when we lose the default network and have no replacement yet. 2456 // This will automatically be cleared after X seconds or a new default network 2457 // becomes CONNECTED, whichever happens first. The timer is started by the 2458 // first caller and not restarted by subsequent callers. 2459 private void requestNetworkTransitionWakelock(String forWhom) { 2460 int serialNum = 0; 2461 synchronized (this) { 2462 if (mNetTransitionWakeLock.isHeld()) return; 2463 serialNum = ++mNetTransitionWakeLockSerialNumber; 2464 mNetTransitionWakeLock.acquire(); 2465 mNetTransitionWakeLockCausedBy = forWhom; 2466 } 2467 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2468 EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), 2469 mNetTransitionWakeLockTimeout); 2470 return; 2471 } 2472 2473 // 100 percent is full good, 0 is full bad. 2474 public void reportInetCondition(int networkType, int percentage) { 2475 if (percentage > 50) return; // don't handle good network reports 2476 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 2477 if (nai != null) reportBadNetwork(nai.network); 2478 } 2479 2480 public void reportBadNetwork(Network network) { 2481 enforceAccessPermission(); 2482 enforceInternetPermission(); 2483 2484 if (network == null) return; 2485 2486 final int uid = Binder.getCallingUid(); 2487 NetworkAgentInfo nai = null; 2488 synchronized (mNetworkForNetId) { 2489 nai = mNetworkForNetId.get(network.netId); 2490 } 2491 if (nai == null) return; 2492 if (DBG) log("reportBadNetwork(" + nai.name() + ") by " + uid); 2493 synchronized (nai) { 2494 if (isNetworkBlocked(nai, uid)) return; 2495 2496 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_FORCE_REEVALUATION, uid); 2497 } 2498 } 2499 2500 public ProxyInfo getProxy() { 2501 // this information is already available as a world read/writable jvm property 2502 // so this API change wouldn't have a benifit. It also breaks the passing 2503 // of proxy info to all the JVMs. 2504 // enforceAccessPermission(); 2505 synchronized (mProxyLock) { 2506 ProxyInfo ret = mGlobalProxy; 2507 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 2508 return ret; 2509 } 2510 } 2511 2512 public void setGlobalProxy(ProxyInfo proxyProperties) { 2513 enforceConnectivityInternalPermission(); 2514 2515 synchronized (mProxyLock) { 2516 if (proxyProperties == mGlobalProxy) return; 2517 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 2518 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 2519 2520 String host = ""; 2521 int port = 0; 2522 String exclList = ""; 2523 String pacFileUrl = ""; 2524 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 2525 (proxyProperties.getPacFileUrl() != null))) { 2526 if (!proxyProperties.isValid()) { 2527 if (DBG) 2528 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2529 return; 2530 } 2531 mGlobalProxy = new ProxyInfo(proxyProperties); 2532 host = mGlobalProxy.getHost(); 2533 port = mGlobalProxy.getPort(); 2534 exclList = mGlobalProxy.getExclusionListAsString(); 2535 if (proxyProperties.getPacFileUrl() != null) { 2536 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 2537 } 2538 } else { 2539 mGlobalProxy = null; 2540 } 2541 ContentResolver res = mContext.getContentResolver(); 2542 final long token = Binder.clearCallingIdentity(); 2543 try { 2544 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 2545 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 2546 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 2547 exclList); 2548 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 2549 } finally { 2550 Binder.restoreCallingIdentity(token); 2551 } 2552 } 2553 2554 if (mGlobalProxy == null) { 2555 proxyProperties = mDefaultProxy; 2556 } 2557 sendProxyBroadcast(proxyProperties); 2558 } 2559 2560 private void loadGlobalProxy() { 2561 ContentResolver res = mContext.getContentResolver(); 2562 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 2563 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 2564 String exclList = Settings.Global.getString(res, 2565 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 2566 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 2567 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 2568 ProxyInfo proxyProperties; 2569 if (!TextUtils.isEmpty(pacFileUrl)) { 2570 proxyProperties = new ProxyInfo(pacFileUrl); 2571 } else { 2572 proxyProperties = new ProxyInfo(host, port, exclList); 2573 } 2574 if (!proxyProperties.isValid()) { 2575 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2576 return; 2577 } 2578 2579 synchronized (mProxyLock) { 2580 mGlobalProxy = proxyProperties; 2581 } 2582 } 2583 } 2584 2585 public ProxyInfo getGlobalProxy() { 2586 // this information is already available as a world read/writable jvm property 2587 // so this API change wouldn't have a benifit. It also breaks the passing 2588 // of proxy info to all the JVMs. 2589 // enforceAccessPermission(); 2590 synchronized (mProxyLock) { 2591 return mGlobalProxy; 2592 } 2593 } 2594 2595 private void handleApplyDefaultProxy(ProxyInfo proxy) { 2596 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 2597 && (proxy.getPacFileUrl() == null)) { 2598 proxy = null; 2599 } 2600 synchronized (mProxyLock) { 2601 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 2602 if (mDefaultProxy == proxy) return; // catches repeated nulls 2603 if (proxy != null && !proxy.isValid()) { 2604 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 2605 return; 2606 } 2607 2608 // This call could be coming from the PacManager, containing the port of the local 2609 // proxy. If this new proxy matches the global proxy then copy this proxy to the 2610 // global (to get the correct local port), and send a broadcast. 2611 // TODO: Switch PacManager to have its own message to send back rather than 2612 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 2613 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 2614 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 2615 mGlobalProxy = proxy; 2616 sendProxyBroadcast(mGlobalProxy); 2617 return; 2618 } 2619 mDefaultProxy = proxy; 2620 2621 if (mGlobalProxy != null) return; 2622 if (!mDefaultProxyDisabled) { 2623 sendProxyBroadcast(proxy); 2624 } 2625 } 2626 } 2627 2628 private void handleDeprecatedGlobalHttpProxy() { 2629 String proxy = Settings.Global.getString(mContext.getContentResolver(), 2630 Settings.Global.HTTP_PROXY); 2631 if (!TextUtils.isEmpty(proxy)) { 2632 String data[] = proxy.split(":"); 2633 if (data.length == 0) { 2634 return; 2635 } 2636 2637 String proxyHost = data[0]; 2638 int proxyPort = 8080; 2639 if (data.length > 1) { 2640 try { 2641 proxyPort = Integer.parseInt(data[1]); 2642 } catch (NumberFormatException e) { 2643 return; 2644 } 2645 } 2646 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 2647 setGlobalProxy(p); 2648 } 2649 } 2650 2651 private void sendProxyBroadcast(ProxyInfo proxy) { 2652 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 2653 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 2654 if (DBG) log("sending Proxy Broadcast for " + proxy); 2655 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 2656 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 2657 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2658 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 2659 final long ident = Binder.clearCallingIdentity(); 2660 try { 2661 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2662 } finally { 2663 Binder.restoreCallingIdentity(ident); 2664 } 2665 } 2666 2667 private static class SettingsObserver extends ContentObserver { 2668 private int mWhat; 2669 private Handler mHandler; 2670 SettingsObserver(Handler handler, int what) { 2671 super(handler); 2672 mHandler = handler; 2673 mWhat = what; 2674 } 2675 2676 void observe(Context context) { 2677 ContentResolver resolver = context.getContentResolver(); 2678 resolver.registerContentObserver(Settings.Global.getUriFor( 2679 Settings.Global.HTTP_PROXY), false, this); 2680 } 2681 2682 @Override 2683 public void onChange(boolean selfChange) { 2684 mHandler.obtainMessage(mWhat).sendToTarget(); 2685 } 2686 } 2687 2688 private static void log(String s) { 2689 Slog.d(TAG, s); 2690 } 2691 2692 private static void loge(String s) { 2693 Slog.e(TAG, s); 2694 } 2695 2696 int convertFeatureToNetworkType(int networkType, String feature) { 2697 int usedNetworkType = networkType; 2698 2699 if(networkType == ConnectivityManager.TYPE_MOBILE) { 2700 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 2701 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 2702 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 2703 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 2704 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 2705 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 2706 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 2707 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 2708 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 2709 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 2710 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 2711 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 2712 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 2713 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 2714 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 2715 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { 2716 usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; 2717 } else { 2718 Slog.e(TAG, "Can't match any mobile netTracker!"); 2719 } 2720 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 2721 if (TextUtils.equals(feature, "p2p")) { 2722 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 2723 } else { 2724 Slog.e(TAG, "Can't match any wifi netTracker!"); 2725 } 2726 } else { 2727 Slog.e(TAG, "Unexpected network type"); 2728 } 2729 return usedNetworkType; 2730 } 2731 2732 private static <T> T checkNotNull(T value, String message) { 2733 if (value == null) { 2734 throw new NullPointerException(message); 2735 } 2736 return value; 2737 } 2738 2739 /** 2740 * Prepare for a VPN application. This method is used by VpnDialogs 2741 * and not available in ConnectivityManager. Permissions are checked 2742 * in Vpn class. 2743 * @hide 2744 */ 2745 @Override 2746 public boolean prepareVpn(String oldPackage, String newPackage) { 2747 throwIfLockdownEnabled(); 2748 int user = UserHandle.getUserId(Binder.getCallingUid()); 2749 synchronized(mVpns) { 2750 return mVpns.get(user).prepare(oldPackage, newPackage); 2751 } 2752 } 2753 2754 /** 2755 * Set whether the current VPN package has the ability to launch VPNs without 2756 * user intervention. This method is used by system UIs and not available 2757 * in ConnectivityManager. Permissions are checked in Vpn class. 2758 * @hide 2759 */ 2760 @Override 2761 public void setVpnPackageAuthorization(boolean authorized) { 2762 int user = UserHandle.getUserId(Binder.getCallingUid()); 2763 synchronized(mVpns) { 2764 mVpns.get(user).setPackageAuthorization(authorized); 2765 } 2766 } 2767 2768 /** 2769 * Configure a TUN interface and return its file descriptor. Parameters 2770 * are encoded and opaque to this class. This method is used by VpnBuilder 2771 * and not available in ConnectivityManager. Permissions are checked in 2772 * Vpn class. 2773 * @hide 2774 */ 2775 @Override 2776 public ParcelFileDescriptor establishVpn(VpnConfig config) { 2777 throwIfLockdownEnabled(); 2778 int user = UserHandle.getUserId(Binder.getCallingUid()); 2779 synchronized(mVpns) { 2780 return mVpns.get(user).establish(config); 2781 } 2782 } 2783 2784 /** 2785 * Start legacy VPN, controlling native daemons as needed. Creates a 2786 * secondary thread to perform connection work, returning quickly. 2787 */ 2788 @Override 2789 public void startLegacyVpn(VpnProfile profile) { 2790 throwIfLockdownEnabled(); 2791 final LinkProperties egress = getActiveLinkProperties(); 2792 if (egress == null) { 2793 throw new IllegalStateException("Missing active network connection"); 2794 } 2795 int user = UserHandle.getUserId(Binder.getCallingUid()); 2796 synchronized(mVpns) { 2797 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 2798 } 2799 } 2800 2801 /** 2802 * Return the information of the ongoing legacy VPN. This method is used 2803 * by VpnSettings and not available in ConnectivityManager. Permissions 2804 * are checked in Vpn class. 2805 * @hide 2806 */ 2807 @Override 2808 public LegacyVpnInfo getLegacyVpnInfo() { 2809 throwIfLockdownEnabled(); 2810 int user = UserHandle.getUserId(Binder.getCallingUid()); 2811 synchronized(mVpns) { 2812 return mVpns.get(user).getLegacyVpnInfo(); 2813 } 2814 } 2815 2816 /** 2817 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 2818 * not available in ConnectivityManager. 2819 * Permissions are checked in Vpn class. 2820 * @hide 2821 */ 2822 @Override 2823 public VpnConfig getVpnConfig() { 2824 int user = UserHandle.getUserId(Binder.getCallingUid()); 2825 synchronized(mVpns) { 2826 return mVpns.get(user).getVpnConfig(); 2827 } 2828 } 2829 2830 @Override 2831 public boolean updateLockdownVpn() { 2832 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 2833 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 2834 return false; 2835 } 2836 2837 // Tear down existing lockdown if profile was removed 2838 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 2839 if (mLockdownEnabled) { 2840 if (!mKeyStore.isUnlocked()) { 2841 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 2842 return false; 2843 } 2844 2845 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 2846 final VpnProfile profile = VpnProfile.decode( 2847 profileName, mKeyStore.get(Credentials.VPN + profileName)); 2848 int user = UserHandle.getUserId(Binder.getCallingUid()); 2849 synchronized(mVpns) { 2850 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 2851 profile)); 2852 } 2853 } else { 2854 setLockdownTracker(null); 2855 } 2856 2857 return true; 2858 } 2859 2860 /** 2861 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 2862 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 2863 */ 2864 private void setLockdownTracker(LockdownVpnTracker tracker) { 2865 // Shutdown any existing tracker 2866 final LockdownVpnTracker existing = mLockdownTracker; 2867 mLockdownTracker = null; 2868 if (existing != null) { 2869 existing.shutdown(); 2870 } 2871 2872 try { 2873 if (tracker != null) { 2874 mNetd.setFirewallEnabled(true); 2875 mNetd.setFirewallInterfaceRule("lo", true); 2876 mLockdownTracker = tracker; 2877 mLockdownTracker.init(); 2878 } else { 2879 mNetd.setFirewallEnabled(false); 2880 } 2881 } catch (RemoteException e) { 2882 // ignored; NMS lives inside system_server 2883 } 2884 } 2885 2886 private void throwIfLockdownEnabled() { 2887 if (mLockdownEnabled) { 2888 throw new IllegalStateException("Unavailable in lockdown mode"); 2889 } 2890 } 2891 2892 public void supplyMessenger(int networkType, Messenger messenger) { 2893 enforceConnectivityInternalPermission(); 2894 2895 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 2896 mNetTrackers[networkType].supplyMessenger(messenger); 2897 } 2898 } 2899 2900 public int findConnectionTypeForIface(String iface) { 2901 enforceConnectivityInternalPermission(); 2902 2903 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 2904 2905 synchronized(mNetworkForNetId) { 2906 for (int i = 0; i < mNetworkForNetId.size(); i++) { 2907 NetworkAgentInfo nai = mNetworkForNetId.valueAt(i); 2908 LinkProperties lp = nai.linkProperties; 2909 if (lp != null && iface.equals(lp.getInterfaceName()) && nai.networkInfo != null) { 2910 return nai.networkInfo.getType(); 2911 } 2912 } 2913 } 2914 return ConnectivityManager.TYPE_NONE; 2915 } 2916 2917 /** 2918 * Have mobile data fail fast if enabled. 2919 * 2920 * @param enabled DctConstants.ENABLED/DISABLED 2921 */ 2922 private void setEnableFailFastMobileData(int enabled) { 2923 int tag; 2924 2925 if (enabled == DctConstants.ENABLED) { 2926 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 2927 } else { 2928 tag = mEnableFailFastMobileDataTag.get(); 2929 } 2930 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 2931 enabled)); 2932 } 2933 2934 private boolean isMobileDataStateTrackerReady() { 2935 MobileDataStateTracker mdst = 2936 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 2937 return (mdst != null) && (mdst.isReady()); 2938 } 2939 2940 /** 2941 * The ResultReceiver resultCode for checkMobileProvisioning (CMP_RESULT_CODE) 2942 */ 2943 2944 /** 2945 * No connection was possible to the network. 2946 * This is NOT a warm sim. 2947 */ 2948 private static final int CMP_RESULT_CODE_NO_CONNECTION = 0; 2949 2950 /** 2951 * A connection was made to the internet, all is well. 2952 * This is NOT a warm sim. 2953 */ 2954 private static final int CMP_RESULT_CODE_CONNECTABLE = 1; 2955 2956 /** 2957 * A connection was made but no dns server was available to resolve a name to address. 2958 * This is NOT a warm sim since provisioning network is supported. 2959 */ 2960 private static final int CMP_RESULT_CODE_NO_DNS = 2; 2961 2962 /** 2963 * A connection was made but could not open a TCP connection. 2964 * This is NOT a warm sim since provisioning network is supported. 2965 */ 2966 private static final int CMP_RESULT_CODE_NO_TCP_CONNECTION = 3; 2967 2968 /** 2969 * A connection was made but there was a redirection, we appear to be in walled garden. 2970 * This is an indication of a warm sim on a mobile network such as T-Mobile. 2971 */ 2972 private static final int CMP_RESULT_CODE_REDIRECTED = 4; 2973 2974 /** 2975 * The mobile network is a provisioning network. 2976 * This is an indication of a warm sim on a mobile network such as AT&T. 2977 */ 2978 private static final int CMP_RESULT_CODE_PROVISIONING_NETWORK = 5; 2979 2980 /** 2981 * The mobile network is provisioning 2982 */ 2983 private static final int CMP_RESULT_CODE_IS_PROVISIONING = 6; 2984 2985 private AtomicBoolean mIsProvisioningNetwork = new AtomicBoolean(false); 2986 private AtomicBoolean mIsStartingProvisioning = new AtomicBoolean(false); 2987 2988 private AtomicBoolean mIsCheckingMobileProvisioning = new AtomicBoolean(false); 2989 2990 @Override 2991 public int checkMobileProvisioning(int suggestedTimeOutMs) { 2992 int timeOutMs = -1; 2993 if (DBG) log("checkMobileProvisioning: E suggestedTimeOutMs=" + suggestedTimeOutMs); 2994 enforceConnectivityInternalPermission(); 2995 2996 final long token = Binder.clearCallingIdentity(); 2997 try { 2998 timeOutMs = suggestedTimeOutMs; 2999 if (suggestedTimeOutMs > CheckMp.MAX_TIMEOUT_MS) { 3000 timeOutMs = CheckMp.MAX_TIMEOUT_MS; 3001 } 3002 3003 // Check that mobile networks are supported 3004 if (!isNetworkSupported(ConnectivityManager.TYPE_MOBILE) 3005 || !isNetworkSupported(ConnectivityManager.TYPE_MOBILE_HIPRI)) { 3006 if (DBG) log("checkMobileProvisioning: X no mobile network"); 3007 return timeOutMs; 3008 } 3009 3010 // If we're already checking don't do it again 3011 // TODO: Add a queue of results... 3012 if (mIsCheckingMobileProvisioning.getAndSet(true)) { 3013 if (DBG) log("checkMobileProvisioning: X already checking ignore for the moment"); 3014 return timeOutMs; 3015 } 3016 3017 // Start off with mobile notification off 3018 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3019 3020 CheckMp checkMp = new CheckMp(mContext, this); 3021 CheckMp.CallBack cb = new CheckMp.CallBack() { 3022 @Override 3023 void onComplete(Integer result) { 3024 if (DBG) log("CheckMp.onComplete: result=" + result); 3025 NetworkInfo ni = 3026 mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI].getNetworkInfo(); 3027 switch(result) { 3028 case CMP_RESULT_CODE_CONNECTABLE: 3029 case CMP_RESULT_CODE_NO_CONNECTION: 3030 case CMP_RESULT_CODE_NO_DNS: 3031 case CMP_RESULT_CODE_NO_TCP_CONNECTION: { 3032 if (DBG) log("CheckMp.onComplete: ignore, connected or no connection"); 3033 break; 3034 } 3035 case CMP_RESULT_CODE_REDIRECTED: { 3036 if (DBG) log("CheckMp.onComplete: warm sim"); 3037 String url = getMobileProvisioningUrl(); 3038 if (TextUtils.isEmpty(url)) { 3039 url = getMobileRedirectedProvisioningUrl(); 3040 } 3041 if (TextUtils.isEmpty(url) == false) { 3042 if (DBG) log("CheckMp.onComplete: warm (redirected), url=" + url); 3043 setProvNotificationVisible(true, 3044 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 3045 url); 3046 } else { 3047 if (DBG) log("CheckMp.onComplete: warm (redirected), no url"); 3048 } 3049 break; 3050 } 3051 case CMP_RESULT_CODE_PROVISIONING_NETWORK: { 3052 String url = getMobileProvisioningUrl(); 3053 if (TextUtils.isEmpty(url) == false) { 3054 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), url=" + url); 3055 setProvNotificationVisible(true, 3056 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 3057 url); 3058 // Mark that we've got a provisioning network and 3059 // Disable Mobile Data until user actually starts provisioning. 3060 mIsProvisioningNetwork.set(true); 3061 MobileDataStateTracker mdst = (MobileDataStateTracker) 3062 mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3063 3064 // Disable radio until user starts provisioning 3065 mdst.setRadio(false); 3066 } else { 3067 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), no url"); 3068 } 3069 break; 3070 } 3071 case CMP_RESULT_CODE_IS_PROVISIONING: { 3072 // FIXME: Need to know when provisioning is done. Probably we can 3073 // check the completion status if successful we're done if we 3074 // "timedout" or still connected to provisioning APN turn off data? 3075 if (DBG) log("CheckMp.onComplete: provisioning started"); 3076 mIsStartingProvisioning.set(false); 3077 break; 3078 } 3079 default: { 3080 loge("CheckMp.onComplete: ignore unexpected result=" + result); 3081 break; 3082 } 3083 } 3084 mIsCheckingMobileProvisioning.set(false); 3085 } 3086 }; 3087 CheckMp.Params params = 3088 new CheckMp.Params(checkMp.getDefaultUrl(), timeOutMs, cb); 3089 if (DBG) log("checkMobileProvisioning: params=" + params); 3090 // TODO: Reenable when calls to the now defunct 3091 // MobileDataStateTracker.isProvisioningNetwork() are removed. 3092 // This code should be moved to the Telephony code. 3093 // checkMp.execute(params); 3094 } finally { 3095 Binder.restoreCallingIdentity(token); 3096 if (DBG) log("checkMobileProvisioning: X"); 3097 } 3098 return timeOutMs; 3099 } 3100 3101 static class CheckMp extends 3102 AsyncTask<CheckMp.Params, Void, Integer> { 3103 private static final String CHECKMP_TAG = "CheckMp"; 3104 3105 // adb shell setprop persist.checkmp.testfailures 1 to enable testing failures 3106 private static boolean mTestingFailures; 3107 3108 // Choosing 4 loops as half of them will use HTTPS and the other half HTTP 3109 private static final int MAX_LOOPS = 4; 3110 3111 // Number of milli-seconds to complete all of the retires 3112 public static final int MAX_TIMEOUT_MS = 60000; 3113 3114 // The socket should retry only 5 seconds, the default is longer 3115 private static final int SOCKET_TIMEOUT_MS = 5000; 3116 3117 // Sleep time for network errors 3118 private static final int NET_ERROR_SLEEP_SEC = 3; 3119 3120 // Sleep time for network route establishment 3121 private static final int NET_ROUTE_ESTABLISHMENT_SLEEP_SEC = 3; 3122 3123 // Short sleep time for polling :( 3124 private static final int POLLING_SLEEP_SEC = 1; 3125 3126 private Context mContext; 3127 private ConnectivityService mCs; 3128 private TelephonyManager mTm; 3129 private Params mParams; 3130 3131 /** 3132 * Parameters for AsyncTask.execute 3133 */ 3134 static class Params { 3135 private String mUrl; 3136 private long mTimeOutMs; 3137 private CallBack mCb; 3138 3139 Params(String url, long timeOutMs, CallBack cb) { 3140 mUrl = url; 3141 mTimeOutMs = timeOutMs; 3142 mCb = cb; 3143 } 3144 3145 @Override 3146 public String toString() { 3147 return "{" + " url=" + mUrl + " mTimeOutMs=" + mTimeOutMs + " mCb=" + mCb + "}"; 3148 } 3149 } 3150 3151 // As explained to me by Brian Carlstrom and Kenny Root, Certificates can be 3152 // issued by name or ip address, for Google its by name so when we construct 3153 // this HostnameVerifier we'll pass the original Uri and use it to verify 3154 // the host. If the host name in the original uril fails we'll test the 3155 // hostname parameter just incase things change. 3156 static class CheckMpHostnameVerifier implements HostnameVerifier { 3157 Uri mOrgUri; 3158 3159 CheckMpHostnameVerifier(Uri orgUri) { 3160 mOrgUri = orgUri; 3161 } 3162 3163 @Override 3164 public boolean verify(String hostname, SSLSession session) { 3165 HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier(); 3166 String orgUriHost = mOrgUri.getHost(); 3167 boolean retVal = hv.verify(orgUriHost, session) || hv.verify(hostname, session); 3168 if (DBG) { 3169 log("isMobileOk: hostnameVerify retVal=" + retVal + " hostname=" + hostname 3170 + " orgUriHost=" + orgUriHost); 3171 } 3172 return retVal; 3173 } 3174 } 3175 3176 /** 3177 * The call back object passed in Params. onComplete will be called 3178 * on the main thread. 3179 */ 3180 abstract static class CallBack { 3181 // Called on the main thread. 3182 abstract void onComplete(Integer result); 3183 } 3184 3185 public CheckMp(Context context, ConnectivityService cs) { 3186 if (Build.IS_DEBUGGABLE) { 3187 mTestingFailures = 3188 SystemProperties.getInt("persist.checkmp.testfailures", 0) == 1; 3189 } else { 3190 mTestingFailures = false; 3191 } 3192 3193 mContext = context; 3194 mCs = cs; 3195 3196 // Setup access to TelephonyService we'll be using. 3197 mTm = (TelephonyManager) mContext.getSystemService( 3198 Context.TELEPHONY_SERVICE); 3199 } 3200 3201 /** 3202 * Get the default url to use for the test. 3203 */ 3204 public String getDefaultUrl() { 3205 // See http://go/clientsdns for usage approval 3206 String server = Settings.Global.getString(mContext.getContentResolver(), 3207 Settings.Global.CAPTIVE_PORTAL_SERVER); 3208 if (server == null) { 3209 server = "clients3.google.com"; 3210 } 3211 return "http://" + server + "/generate_204"; 3212 } 3213 3214 /** 3215 * Detect if its possible to connect to the http url. DNS based detection techniques 3216 * do not work at all hotspots. The best way to check is to perform a request to 3217 * a known address that fetches the data we expect. 3218 */ 3219 private synchronized Integer isMobileOk(Params params) { 3220 Integer result = CMP_RESULT_CODE_NO_CONNECTION; 3221 Uri orgUri = Uri.parse(params.mUrl); 3222 Random rand = new Random(); 3223 mParams = params; 3224 3225 if (mCs.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false) { 3226 result = CMP_RESULT_CODE_NO_CONNECTION; 3227 log("isMobileOk: X not mobile capable result=" + result); 3228 return result; 3229 } 3230 3231 if (mCs.mIsStartingProvisioning.get()) { 3232 result = CMP_RESULT_CODE_IS_PROVISIONING; 3233 log("isMobileOk: X is provisioning result=" + result); 3234 return result; 3235 } 3236 3237 // See if we've already determined we've got a provisioning connection, 3238 // if so we don't need to do anything active. 3239 MobileDataStateTracker mdstDefault = (MobileDataStateTracker) 3240 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3241 boolean isDefaultProvisioning = mdstDefault.isProvisioningNetwork(); 3242 log("isMobileOk: isDefaultProvisioning=" + isDefaultProvisioning); 3243 3244 MobileDataStateTracker mdstHipri = (MobileDataStateTracker) 3245 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3246 boolean isHipriProvisioning = mdstHipri.isProvisioningNetwork(); 3247 log("isMobileOk: isHipriProvisioning=" + isHipriProvisioning); 3248 3249 if (isDefaultProvisioning || isHipriProvisioning) { 3250 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3251 log("isMobileOk: X default || hipri is provisioning result=" + result); 3252 return result; 3253 } 3254 3255 try { 3256 // Continue trying to connect until time has run out 3257 long endTime = SystemClock.elapsedRealtime() + params.mTimeOutMs; 3258 3259 if (!mCs.isMobileDataStateTrackerReady()) { 3260 // Wait for MobileDataStateTracker to be ready. 3261 if (DBG) log("isMobileOk: mdst is not ready"); 3262 while(SystemClock.elapsedRealtime() < endTime) { 3263 if (mCs.isMobileDataStateTrackerReady()) { 3264 // Enable fail fast as we'll do retries here and use a 3265 // hipri connection so the default connection stays active. 3266 if (DBG) log("isMobileOk: mdst ready, enable fail fast of mobile data"); 3267 mCs.setEnableFailFastMobileData(DctConstants.ENABLED); 3268 break; 3269 } 3270 sleep(POLLING_SLEEP_SEC); 3271 } 3272 } 3273 3274 log("isMobileOk: start hipri url=" + params.mUrl); 3275 3276 // First wait until we can start using hipri 3277 Binder binder = new Binder(); 3278/* 3279 while(SystemClock.elapsedRealtime() < endTime) { 3280 int ret = mCs.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3281 Phone.FEATURE_ENABLE_HIPRI, binder); 3282 if ((ret == PhoneConstants.APN_ALREADY_ACTIVE) 3283 || (ret == PhoneConstants.APN_REQUEST_STARTED)) { 3284 log("isMobileOk: hipri started"); 3285 break; 3286 } 3287 if (VDBG) log("isMobileOk: hipri not started yet"); 3288 result = CMP_RESULT_CODE_NO_CONNECTION; 3289 sleep(POLLING_SLEEP_SEC); 3290 } 3291*/ 3292 // Continue trying to connect until time has run out 3293 while(SystemClock.elapsedRealtime() < endTime) { 3294 try { 3295 // Wait for hipri to connect. 3296 // TODO: Don't poll and handle situation where hipri fails 3297 // because default is retrying. See b/9569540 3298 NetworkInfo.State state = mCs 3299 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3300 if (state != NetworkInfo.State.CONNECTED) { 3301 if (true/*VDBG*/) { 3302 log("isMobileOk: not connected ni=" + 3303 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3304 } 3305 sleep(POLLING_SLEEP_SEC); 3306 result = CMP_RESULT_CODE_NO_CONNECTION; 3307 continue; 3308 } 3309 3310 // Hipri has started check if this is a provisioning url 3311 MobileDataStateTracker mdst = (MobileDataStateTracker) 3312 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3313 if (mdst.isProvisioningNetwork()) { 3314 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3315 if (DBG) log("isMobileOk: X isProvisioningNetwork result=" + result); 3316 return result; 3317 } else { 3318 if (DBG) log("isMobileOk: isProvisioningNetwork is false, continue"); 3319 } 3320 3321 // Get of the addresses associated with the url host. We need to use the 3322 // address otherwise HttpURLConnection object will use the name to get 3323 // the addresses and will try every address but that will bypass the 3324 // route to host we setup and the connection could succeed as the default 3325 // interface might be connected to the internet via wifi or other interface. 3326 InetAddress[] addresses; 3327 try { 3328 addresses = InetAddress.getAllByName(orgUri.getHost()); 3329 } catch (UnknownHostException e) { 3330 result = CMP_RESULT_CODE_NO_DNS; 3331 log("isMobileOk: X UnknownHostException result=" + result); 3332 return result; 3333 } 3334 log("isMobileOk: addresses=" + inetAddressesToString(addresses)); 3335 3336 // Get the type of addresses supported by this link 3337 LinkProperties lp = mCs.getLinkPropertiesForTypeInternal( 3338 ConnectivityManager.TYPE_MOBILE_HIPRI); 3339 boolean linkHasIpv4 = lp.hasIPv4Address(); 3340 boolean linkHasIpv6 = lp.hasGlobalIPv6Address(); 3341 log("isMobileOk: linkHasIpv4=" + linkHasIpv4 3342 + " linkHasIpv6=" + linkHasIpv6); 3343 3344 final ArrayList<InetAddress> validAddresses = 3345 new ArrayList<InetAddress>(addresses.length); 3346 3347 for (InetAddress addr : addresses) { 3348 if (((addr instanceof Inet4Address) && linkHasIpv4) || 3349 ((addr instanceof Inet6Address) && linkHasIpv6)) { 3350 validAddresses.add(addr); 3351 } 3352 } 3353 3354 if (validAddresses.size() == 0) { 3355 return CMP_RESULT_CODE_NO_CONNECTION; 3356 } 3357 3358 int addrTried = 0; 3359 while (true) { 3360 // Loop through at most MAX_LOOPS valid addresses or until 3361 // we run out of time 3362 if (addrTried++ >= MAX_LOOPS) { 3363 log("isMobileOk: too many loops tried - giving up"); 3364 break; 3365 } 3366 if (SystemClock.elapsedRealtime() >= endTime) { 3367 log("isMobileOk: spend too much time - giving up"); 3368 break; 3369 } 3370 3371 InetAddress hostAddr = validAddresses.get(rand.nextInt( 3372 validAddresses.size())); 3373 3374 // Make a route to host so we check the specific interface. 3375 if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI, 3376 hostAddr.getAddress())) { 3377 // Wait a short time to be sure the route is established ?? 3378 log("isMobileOk:" 3379 + " wait to establish route to hostAddr=" + hostAddr); 3380 sleep(NET_ROUTE_ESTABLISHMENT_SLEEP_SEC); 3381 } else { 3382 log("isMobileOk:" 3383 + " could not establish route to hostAddr=" + hostAddr); 3384 // Wait a short time before the next attempt 3385 sleep(NET_ERROR_SLEEP_SEC); 3386 continue; 3387 } 3388 3389 // Rewrite the url to have numeric address to use the specific route 3390 // using http for half the attempts and https for the other half. 3391 // Doing https first and http second as on a redirected walled garden 3392 // such as t-mobile uses we get a SocketTimeoutException: "SSL 3393 // handshake timed out" which we declare as 3394 // CMP_RESULT_CODE_NO_TCP_CONNECTION. We could change this, but by 3395 // having http second we will be using logic used for some time. 3396 URL newUrl; 3397 String scheme = (addrTried <= (MAX_LOOPS/2)) ? "https" : "http"; 3398 newUrl = new URL(scheme, hostAddr.getHostAddress(), 3399 orgUri.getPath()); 3400 log("isMobileOk: newUrl=" + newUrl); 3401 3402 HttpURLConnection urlConn = null; 3403 try { 3404 // Open the connection set the request headers and get the response 3405 urlConn = (HttpURLConnection)newUrl.openConnection( 3406 java.net.Proxy.NO_PROXY); 3407 if (scheme.equals("https")) { 3408 ((HttpsURLConnection)urlConn).setHostnameVerifier( 3409 new CheckMpHostnameVerifier(orgUri)); 3410 } 3411 urlConn.setInstanceFollowRedirects(false); 3412 urlConn.setConnectTimeout(SOCKET_TIMEOUT_MS); 3413 urlConn.setReadTimeout(SOCKET_TIMEOUT_MS); 3414 urlConn.setUseCaches(false); 3415 urlConn.setAllowUserInteraction(false); 3416 // Set the "Connection" to "Close" as by default "Keep-Alive" 3417 // is used which is useless in this case. 3418 urlConn.setRequestProperty("Connection", "close"); 3419 int responseCode = urlConn.getResponseCode(); 3420 3421 // For debug display the headers 3422 Map<String, List<String>> headers = urlConn.getHeaderFields(); 3423 log("isMobileOk: headers=" + headers); 3424 3425 // Close the connection 3426 urlConn.disconnect(); 3427 urlConn = null; 3428 3429 if (mTestingFailures) { 3430 // Pretend no connection, this tests using http and https 3431 result = CMP_RESULT_CODE_NO_CONNECTION; 3432 log("isMobileOk: TESTING_FAILURES, pretend no connction"); 3433 continue; 3434 } 3435 3436 if (responseCode == 204) { 3437 // Return 3438 result = CMP_RESULT_CODE_CONNECTABLE; 3439 log("isMobileOk: X got expected responseCode=" + responseCode 3440 + " result=" + result); 3441 return result; 3442 } else { 3443 // Retry to be sure this was redirected, we've gotten 3444 // occasions where a server returned 200 even though 3445 // the device didn't have a "warm" sim. 3446 log("isMobileOk: not expected responseCode=" + responseCode); 3447 // TODO - it would be nice in the single-address case to do 3448 // another DNS resolve here, but flushing the cache is a bit 3449 // heavy-handed. 3450 result = CMP_RESULT_CODE_REDIRECTED; 3451 } 3452 } catch (Exception e) { 3453 log("isMobileOk: HttpURLConnection Exception" + e); 3454 result = CMP_RESULT_CODE_NO_TCP_CONNECTION; 3455 if (urlConn != null) { 3456 urlConn.disconnect(); 3457 urlConn = null; 3458 } 3459 sleep(NET_ERROR_SLEEP_SEC); 3460 continue; 3461 } 3462 } 3463 log("isMobileOk: X loops|timed out result=" + result); 3464 return result; 3465 } catch (Exception e) { 3466 log("isMobileOk: Exception e=" + e); 3467 continue; 3468 } 3469 } 3470 log("isMobileOk: timed out"); 3471 } finally { 3472 log("isMobileOk: F stop hipri"); 3473 mCs.setEnableFailFastMobileData(DctConstants.DISABLED); 3474// mCs.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3475// Phone.FEATURE_ENABLE_HIPRI); 3476 3477 // Wait for hipri to disconnect. 3478 long endTime = SystemClock.elapsedRealtime() + 5000; 3479 3480 while(SystemClock.elapsedRealtime() < endTime) { 3481 NetworkInfo.State state = mCs 3482 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3483 if (state != NetworkInfo.State.DISCONNECTED) { 3484 if (VDBG) { 3485 log("isMobileOk: connected ni=" + 3486 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3487 } 3488 sleep(POLLING_SLEEP_SEC); 3489 continue; 3490 } 3491 } 3492 3493 log("isMobileOk: X result=" + result); 3494 } 3495 return result; 3496 } 3497 3498 @Override 3499 protected Integer doInBackground(Params... params) { 3500 return isMobileOk(params[0]); 3501 } 3502 3503 @Override 3504 protected void onPostExecute(Integer result) { 3505 log("onPostExecute: result=" + result); 3506 if ((mParams != null) && (mParams.mCb != null)) { 3507 mParams.mCb.onComplete(result); 3508 } 3509 } 3510 3511 private String inetAddressesToString(InetAddress[] addresses) { 3512 StringBuffer sb = new StringBuffer(); 3513 boolean firstTime = true; 3514 for(InetAddress addr : addresses) { 3515 if (firstTime) { 3516 firstTime = false; 3517 } else { 3518 sb.append(","); 3519 } 3520 sb.append(addr); 3521 } 3522 return sb.toString(); 3523 } 3524 3525 private void printNetworkInfo() { 3526 boolean hasIccCard = mTm.hasIccCard(); 3527 int simState = mTm.getSimState(); 3528 log("hasIccCard=" + hasIccCard 3529 + " simState=" + simState); 3530 NetworkInfo[] ni = mCs.getAllNetworkInfo(); 3531 if (ni != null) { 3532 log("ni.length=" + ni.length); 3533 for (NetworkInfo netInfo: ni) { 3534 log("netInfo=" + netInfo.toString()); 3535 } 3536 } else { 3537 log("no network info ni=null"); 3538 } 3539 } 3540 3541 /** 3542 * Sleep for a few seconds then return. 3543 * @param seconds 3544 */ 3545 private static void sleep(int seconds) { 3546 long stopTime = System.nanoTime() + (seconds * 1000000000); 3547 long sleepTime; 3548 while ((sleepTime = stopTime - System.nanoTime()) > 0) { 3549 try { 3550 Thread.sleep(sleepTime / 1000000); 3551 } catch (InterruptedException ignored) { 3552 } 3553 } 3554 } 3555 3556 private static void log(String s) { 3557 Slog.d(ConnectivityService.TAG, "[" + CHECKMP_TAG + "] " + s); 3558 } 3559 } 3560 3561 // TODO: Move to ConnectivityManager and make public? 3562 private static final String CONNECTED_TO_PROVISIONING_NETWORK_ACTION = 3563 "com.android.server.connectivityservice.CONNECTED_TO_PROVISIONING_NETWORK_ACTION"; 3564 3565 private BroadcastReceiver mProvisioningReceiver = new BroadcastReceiver() { 3566 @Override 3567 public void onReceive(Context context, Intent intent) { 3568 if (intent.getAction().equals(CONNECTED_TO_PROVISIONING_NETWORK_ACTION)) { 3569 handleMobileProvisioningAction(intent.getStringExtra("EXTRA_URL")); 3570 } 3571 } 3572 }; 3573 3574 private void handleMobileProvisioningAction(String url) { 3575 // Mark notification as not visible 3576 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3577 3578 // Check airplane mode 3579 boolean isAirplaneModeOn = Settings.System.getInt(mContext.getContentResolver(), 3580 Settings.Global.AIRPLANE_MODE_ON, 0) == 1; 3581 // If provisioning network and not in airplane mode handle as a special case, 3582 // otherwise launch browser with the intent directly. 3583 if (mIsProvisioningNetwork.get() && !isAirplaneModeOn) { 3584 if (DBG) log("handleMobileProvisioningAction: on prov network enable then launch"); 3585 mIsProvisioningNetwork.set(false); 3586// mIsStartingProvisioning.set(true); 3587// MobileDataStateTracker mdst = (MobileDataStateTracker) 3588// mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3589 // Radio was disabled on CMP_RESULT_CODE_PROVISIONING_NETWORK, enable it here 3590// mdst.setRadio(true); 3591// mdst.setEnableFailFastMobileData(DctConstants.ENABLED); 3592// mdst.enableMobileProvisioning(url); 3593 } else { 3594 if (DBG) log("handleMobileProvisioningAction: not prov network"); 3595 mIsProvisioningNetwork.set(false); 3596 // Check for apps that can handle provisioning first 3597 Intent provisioningIntent = new Intent(TelephonyIntents.ACTION_CARRIER_SETUP); 3598 List<String> carrierPackages = 3599 mTelephonyManager.getCarrierPackageNamesForIntent(provisioningIntent); 3600 if (carrierPackages != null && !carrierPackages.isEmpty()) { 3601 if (carrierPackages.size() != 1) { 3602 if (DBG) log("Multiple matching carrier apps found, launching the first."); 3603 } 3604 provisioningIntent.setPackage(carrierPackages.get(0)); 3605 provisioningIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3606 Intent.FLAG_ACTIVITY_NEW_TASK); 3607 mContext.startActivity(provisioningIntent); 3608 } else { 3609 // If no apps exist, use standard URL ACTION_VIEW method 3610 Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, 3611 Intent.CATEGORY_APP_BROWSER); 3612 newIntent.setData(Uri.parse(url)); 3613 newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3614 Intent.FLAG_ACTIVITY_NEW_TASK); 3615 try { 3616 mContext.startActivity(newIntent); 3617 } catch (ActivityNotFoundException e) { 3618 loge("handleMobileProvisioningAction: startActivity failed" + e); 3619 } 3620 } 3621 } 3622 } 3623 3624 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 3625 private volatile boolean mIsNotificationVisible = false; 3626 3627 private void setProvNotificationVisible(boolean visible, int networkType, String extraInfo, 3628 String url) { 3629 if (DBG) { 3630 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 3631 + " extraInfo=" + extraInfo + " url=" + url); 3632 } 3633 Intent intent = null; 3634 PendingIntent pendingIntent = null; 3635 if (visible) { 3636 switch (networkType) { 3637 case ConnectivityManager.TYPE_WIFI: 3638 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3639 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3640 Intent.FLAG_ACTIVITY_NEW_TASK); 3641 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3642 break; 3643 case ConnectivityManager.TYPE_MOBILE: 3644 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3645 intent = new Intent(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 3646 intent.putExtra("EXTRA_URL", url); 3647 intent.setFlags(0); 3648 pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 3649 break; 3650 default: 3651 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3652 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3653 Intent.FLAG_ACTIVITY_NEW_TASK); 3654 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3655 break; 3656 } 3657 } 3658 // Concatenate the range of types onto the range of NetIDs. 3659 int id = MAX_NET_ID + 1 + (networkType - ConnectivityManager.TYPE_NONE); 3660 setProvNotificationVisibleIntent(visible, id, networkType, extraInfo, pendingIntent); 3661 } 3662 3663 /** 3664 * Show or hide network provisioning notificaitons. 3665 * 3666 * @param id an identifier that uniquely identifies this notification. This must match 3667 * between show and hide calls. We use the NetID value but for legacy callers 3668 * we concatenate the range of types with the range of NetIDs. 3669 */ 3670 private void setProvNotificationVisibleIntent(boolean visible, int id, int networkType, 3671 String extraInfo, PendingIntent intent) { 3672 if (DBG) { 3673 log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + 3674 networkType + " extraInfo=" + extraInfo); 3675 } 3676 3677 Resources r = Resources.getSystem(); 3678 NotificationManager notificationManager = (NotificationManager) mContext 3679 .getSystemService(Context.NOTIFICATION_SERVICE); 3680 3681 if (visible) { 3682 CharSequence title; 3683 CharSequence details; 3684 int icon; 3685 Notification notification = new Notification(); 3686 switch (networkType) { 3687 case ConnectivityManager.TYPE_WIFI: 3688 title = r.getString(R.string.wifi_available_sign_in, 0); 3689 details = r.getString(R.string.network_available_sign_in_detailed, 3690 extraInfo); 3691 icon = R.drawable.stat_notify_wifi_in_range; 3692 break; 3693 case ConnectivityManager.TYPE_MOBILE: 3694 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3695 title = r.getString(R.string.network_available_sign_in, 0); 3696 // TODO: Change this to pull from NetworkInfo once a printable 3697 // name has been added to it 3698 details = mTelephonyManager.getNetworkOperatorName(); 3699 icon = R.drawable.stat_notify_rssi_in_range; 3700 break; 3701 default: 3702 title = r.getString(R.string.network_available_sign_in, 0); 3703 details = r.getString(R.string.network_available_sign_in_detailed, 3704 extraInfo); 3705 icon = R.drawable.stat_notify_rssi_in_range; 3706 break; 3707 } 3708 3709 notification.when = 0; 3710 notification.icon = icon; 3711 notification.flags = Notification.FLAG_AUTO_CANCEL; 3712 notification.tickerText = title; 3713 notification.color = mContext.getResources().getColor( 3714 com.android.internal.R.color.system_notification_accent_color); 3715 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 3716 notification.contentIntent = intent; 3717 3718 try { 3719 notificationManager.notify(NOTIFICATION_ID, id, notification); 3720 } catch (NullPointerException npe) { 3721 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 3722 npe.printStackTrace(); 3723 } 3724 } else { 3725 try { 3726 notificationManager.cancel(NOTIFICATION_ID, id); 3727 } catch (NullPointerException npe) { 3728 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 3729 npe.printStackTrace(); 3730 } 3731 } 3732 mIsNotificationVisible = visible; 3733 } 3734 3735 /** Location to an updatable file listing carrier provisioning urls. 3736 * An example: 3737 * 3738 * <?xml version="1.0" encoding="utf-8"?> 3739 * <provisioningUrls> 3740 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 3741 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 3742 * </provisioningUrls> 3743 */ 3744 private static final String PROVISIONING_URL_PATH = 3745 "/data/misc/radio/provisioning_urls.xml"; 3746 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 3747 3748 /** XML tag for root element. */ 3749 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 3750 /** XML tag for individual url */ 3751 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 3752 /** XML tag for redirected url */ 3753 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 3754 /** XML attribute for mcc */ 3755 private static final String ATTR_MCC = "mcc"; 3756 /** XML attribute for mnc */ 3757 private static final String ATTR_MNC = "mnc"; 3758 3759 private static final int REDIRECTED_PROVISIONING = 1; 3760 private static final int PROVISIONING = 2; 3761 3762 private String getProvisioningUrlBaseFromFile(int type) { 3763 FileReader fileReader = null; 3764 XmlPullParser parser = null; 3765 Configuration config = mContext.getResources().getConfiguration(); 3766 String tagType; 3767 3768 switch (type) { 3769 case PROVISIONING: 3770 tagType = TAG_PROVISIONING_URL; 3771 break; 3772 case REDIRECTED_PROVISIONING: 3773 tagType = TAG_REDIRECTED_URL; 3774 break; 3775 default: 3776 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 3777 type); 3778 } 3779 3780 try { 3781 fileReader = new FileReader(mProvisioningUrlFile); 3782 parser = Xml.newPullParser(); 3783 parser.setInput(fileReader); 3784 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 3785 3786 while (true) { 3787 XmlUtils.nextElement(parser); 3788 3789 String element = parser.getName(); 3790 if (element == null) break; 3791 3792 if (element.equals(tagType)) { 3793 String mcc = parser.getAttributeValue(null, ATTR_MCC); 3794 try { 3795 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 3796 String mnc = parser.getAttributeValue(null, ATTR_MNC); 3797 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 3798 parser.next(); 3799 if (parser.getEventType() == XmlPullParser.TEXT) { 3800 return parser.getText(); 3801 } 3802 } 3803 } 3804 } catch (NumberFormatException e) { 3805 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 3806 } 3807 } 3808 } 3809 return null; 3810 } catch (FileNotFoundException e) { 3811 loge("Carrier Provisioning Urls file not found"); 3812 } catch (XmlPullParserException e) { 3813 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 3814 } catch (IOException e) { 3815 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 3816 } finally { 3817 if (fileReader != null) { 3818 try { 3819 fileReader.close(); 3820 } catch (IOException e) {} 3821 } 3822 } 3823 return null; 3824 } 3825 3826 @Override 3827 public String getMobileRedirectedProvisioningUrl() { 3828 enforceConnectivityInternalPermission(); 3829 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 3830 if (TextUtils.isEmpty(url)) { 3831 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 3832 } 3833 return url; 3834 } 3835 3836 @Override 3837 public String getMobileProvisioningUrl() { 3838 enforceConnectivityInternalPermission(); 3839 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 3840 if (TextUtils.isEmpty(url)) { 3841 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 3842 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 3843 } else { 3844 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 3845 } 3846 // populate the iccid, imei and phone number in the provisioning url. 3847 if (!TextUtils.isEmpty(url)) { 3848 String phoneNumber = mTelephonyManager.getLine1Number(); 3849 if (TextUtils.isEmpty(phoneNumber)) { 3850 phoneNumber = "0000000000"; 3851 } 3852 url = String.format(url, 3853 mTelephonyManager.getSimSerialNumber() /* ICCID */, 3854 mTelephonyManager.getDeviceId() /* IMEI */, 3855 phoneNumber /* Phone numer */); 3856 } 3857 3858 return url; 3859 } 3860 3861 @Override 3862 public void setProvisioningNotificationVisible(boolean visible, int networkType, 3863 String extraInfo, String url) { 3864 enforceConnectivityInternalPermission(); 3865 setProvNotificationVisible(visible, networkType, extraInfo, url); 3866 } 3867 3868 @Override 3869 public void setAirplaneMode(boolean enable) { 3870 enforceConnectivityInternalPermission(); 3871 final long ident = Binder.clearCallingIdentity(); 3872 try { 3873 final ContentResolver cr = mContext.getContentResolver(); 3874 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 3875 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 3876 intent.putExtra("state", enable); 3877 mContext.sendBroadcast(intent); 3878 } finally { 3879 Binder.restoreCallingIdentity(ident); 3880 } 3881 } 3882 3883 private void onUserStart(int userId) { 3884 synchronized(mVpns) { 3885 Vpn userVpn = mVpns.get(userId); 3886 if (userVpn != null) { 3887 loge("Starting user already has a VPN"); 3888 return; 3889 } 3890 userVpn = new Vpn(mHandler.getLooper(), mContext, mNetd, this, userId); 3891 mVpns.put(userId, userVpn); 3892 } 3893 } 3894 3895 private void onUserStop(int userId) { 3896 synchronized(mVpns) { 3897 Vpn userVpn = mVpns.get(userId); 3898 if (userVpn == null) { 3899 loge("Stopping user has no VPN"); 3900 return; 3901 } 3902 mVpns.delete(userId); 3903 } 3904 } 3905 3906 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 3907 @Override 3908 public void onReceive(Context context, Intent intent) { 3909 final String action = intent.getAction(); 3910 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3911 if (userId == UserHandle.USER_NULL) return; 3912 3913 if (Intent.ACTION_USER_STARTING.equals(action)) { 3914 onUserStart(userId); 3915 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 3916 onUserStop(userId); 3917 } 3918 } 3919 }; 3920 3921 @Override 3922 public LinkQualityInfo getLinkQualityInfo(int networkType) { 3923 enforceAccessPermission(); 3924 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 3925 return mNetTrackers[networkType].getLinkQualityInfo(); 3926 } else { 3927 return null; 3928 } 3929 } 3930 3931 @Override 3932 public LinkQualityInfo getActiveLinkQualityInfo() { 3933 enforceAccessPermission(); 3934 if (isNetworkTypeValid(mActiveDefaultNetwork) && 3935 mNetTrackers[mActiveDefaultNetwork] != null) { 3936 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 3937 } else { 3938 return null; 3939 } 3940 } 3941 3942 @Override 3943 public LinkQualityInfo[] getAllLinkQualityInfo() { 3944 enforceAccessPermission(); 3945 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 3946 for (NetworkStateTracker tracker : mNetTrackers) { 3947 if (tracker != null) { 3948 LinkQualityInfo li = tracker.getLinkQualityInfo(); 3949 if (li != null) { 3950 result.add(li); 3951 } 3952 } 3953 } 3954 3955 return result.toArray(new LinkQualityInfo[result.size()]); 3956 } 3957 3958 /* Infrastructure for network sampling */ 3959 3960 private void handleNetworkSamplingTimeout() { 3961 3962 if (SAMPLE_DBG) log("Sampling interval elapsed, updating statistics .."); 3963 3964 // initialize list of interfaces .. 3965 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 3966 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 3967 for (NetworkStateTracker tracker : mNetTrackers) { 3968 if (tracker != null) { 3969 String ifaceName = tracker.getNetworkInterfaceName(); 3970 if (ifaceName != null) { 3971 mapIfaceToSample.put(ifaceName, null); 3972 } 3973 } 3974 } 3975 3976 // Read samples for all interfaces 3977 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 3978 3979 // process samples for all networks 3980 for (NetworkStateTracker tracker : mNetTrackers) { 3981 if (tracker != null) { 3982 String ifaceName = tracker.getNetworkInterfaceName(); 3983 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 3984 if (ss != null) { 3985 // end the previous sampling cycle 3986 tracker.stopSampling(ss); 3987 // start a new sampling cycle .. 3988 tracker.startSampling(ss); 3989 } 3990 } 3991 } 3992 3993 if (SAMPLE_DBG) log("Done."); 3994 3995 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 3996 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 3997 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 3998 3999 if (SAMPLE_DBG) { 4000 log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 4001 } 4002 4003 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 4004 } 4005 4006 /** 4007 * Sets a network sampling alarm. 4008 */ 4009 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 4010 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 4011 int alarmType; 4012 if (Resources.getSystem().getBoolean( 4013 R.bool.config_networkSamplingWakesDevice)) { 4014 alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP; 4015 } else { 4016 alarmType = AlarmManager.ELAPSED_REALTIME; 4017 } 4018 mAlarmManager.set(alarmType, wakeupTime, intent); 4019 } 4020 4021 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 4022 new HashMap<Messenger, NetworkFactoryInfo>(); 4023 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 4024 new HashMap<NetworkRequest, NetworkRequestInfo>(); 4025 4026 private static class NetworkFactoryInfo { 4027 public final String name; 4028 public final Messenger messenger; 4029 public final AsyncChannel asyncChannel; 4030 4031 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 4032 this.name = name; 4033 this.messenger = messenger; 4034 this.asyncChannel = asyncChannel; 4035 } 4036 } 4037 4038 /** 4039 * Tracks info about the requester. 4040 * Also used to notice when the calling process dies so we can self-expire 4041 */ 4042 private class NetworkRequestInfo implements IBinder.DeathRecipient { 4043 static final boolean REQUEST = true; 4044 static final boolean LISTEN = false; 4045 4046 final NetworkRequest request; 4047 IBinder mBinder; 4048 final int mPid; 4049 final int mUid; 4050 final Messenger messenger; 4051 final boolean isRequest; 4052 4053 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 4054 super(); 4055 messenger = m; 4056 request = r; 4057 mBinder = binder; 4058 mPid = getCallingPid(); 4059 mUid = getCallingUid(); 4060 this.isRequest = isRequest; 4061 4062 try { 4063 mBinder.linkToDeath(this, 0); 4064 } catch (RemoteException e) { 4065 binderDied(); 4066 } 4067 } 4068 4069 void unlinkDeathRecipient() { 4070 mBinder.unlinkToDeath(this, 0); 4071 } 4072 4073 public void binderDied() { 4074 log("ConnectivityService NetworkRequestInfo binderDied(" + 4075 request + ", " + mBinder + ")"); 4076 releaseNetworkRequest(request); 4077 } 4078 4079 public String toString() { 4080 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 4081 mPid + " for " + request; 4082 } 4083 } 4084 4085 @Override 4086 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 4087 Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { 4088 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 4089 == false) { 4090 enforceConnectivityInternalPermission(); 4091 } else { 4092 enforceChangePermission(); 4093 } 4094 4095 networkCapabilities = new NetworkCapabilities(networkCapabilities); 4096 4097 // if UID is restricted, don't allow them to bring up metered APNs 4098 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED) 4099 == false) { 4100 final int uidRules; 4101 final int uid = Binder.getCallingUid(); 4102 synchronized(mRulesLock) { 4103 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 4104 } 4105 if ((uidRules & RULE_REJECT_METERED) != 0) { 4106 // we could silently fail or we can filter the available nets to only give 4107 // them those they have access to. Chose the more useful 4108 networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 4109 } 4110 } 4111 4112 if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { 4113 throw new IllegalArgumentException("Bad timeout specified"); 4114 } 4115 NetworkRequest networkRequest = new NetworkRequest(networkCapabilities, legacyType, 4116 nextNetworkRequestId()); 4117 if (DBG) log("requestNetwork for " + networkRequest); 4118 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4119 NetworkRequestInfo.REQUEST); 4120 4121 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 4122 if (timeoutMs > 0) { 4123 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 4124 nri), timeoutMs); 4125 } 4126 return networkRequest; 4127 } 4128 4129 @Override 4130 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 4131 PendingIntent operation) { 4132 // TODO 4133 return null; 4134 } 4135 4136 @Override 4137 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 4138 Messenger messenger, IBinder binder) { 4139 enforceAccessPermission(); 4140 4141 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 4142 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 4143 if (DBG) log("listenForNetwork for " + networkRequest); 4144 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4145 NetworkRequestInfo.LISTEN); 4146 4147 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 4148 return networkRequest; 4149 } 4150 4151 @Override 4152 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 4153 PendingIntent operation) { 4154 } 4155 4156 @Override 4157 public void releaseNetworkRequest(NetworkRequest networkRequest) { 4158 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), 4159 0, networkRequest)); 4160 } 4161 4162 @Override 4163 public void registerNetworkFactory(Messenger messenger, String name) { 4164 enforceConnectivityInternalPermission(); 4165 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 4166 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 4167 } 4168 4169 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 4170 if (DBG) log("Got NetworkFactory Messenger for " + nfi.name); 4171 mNetworkFactoryInfos.put(nfi.messenger, nfi); 4172 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 4173 } 4174 4175 @Override 4176 public void unregisterNetworkFactory(Messenger messenger) { 4177 enforceConnectivityInternalPermission(); 4178 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 4179 } 4180 4181 private void handleUnregisterNetworkFactory(Messenger messenger) { 4182 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 4183 if (nfi == null) { 4184 loge("Failed to find Messenger in unregisterNetworkFactory"); 4185 return; 4186 } 4187 if (DBG) log("unregisterNetworkFactory for " + nfi.name); 4188 } 4189 4190 /** 4191 * NetworkAgentInfo supporting a request by requestId. 4192 * These have already been vetted (their Capabilities satisfy the request) 4193 * and the are the highest scored network available. 4194 * the are keyed off the Requests requestId. 4195 */ 4196 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 4197 new SparseArray<NetworkAgentInfo>(); 4198 4199 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 4200 new SparseArray<NetworkAgentInfo>(); 4201 4202 // NetworkAgentInfo keyed off its connecting messenger 4203 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 4204 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 4205 new HashMap<Messenger, NetworkAgentInfo>(); 4206 4207 private final NetworkRequest mDefaultRequest; 4208 4209 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 4210 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 4211 } 4212 4213 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 4214 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 4215 int currentScore, NetworkMisc networkMisc) { 4216 enforceConnectivityInternalPermission(); 4217 4218 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), 4219 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 4220 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler, 4221 new NetworkMisc(networkMisc)); 4222 synchronized (this) { 4223 nai.networkMonitor.systemReady = mSystemReady; 4224 } 4225 if (DBG) log("registerNetworkAgent " + nai); 4226 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 4227 } 4228 4229 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 4230 if (VDBG) log("Got NetworkAgent Messenger"); 4231 mNetworkAgentInfos.put(na.messenger, na); 4232 assignNextNetId(na); 4233 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 4234 NetworkInfo networkInfo = na.networkInfo; 4235 na.networkInfo = null; 4236 updateNetworkInfo(na, networkInfo); 4237 } 4238 4239 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 4240 LinkProperties newLp = networkAgent.linkProperties; 4241 int netId = networkAgent.network.netId; 4242 4243 updateInterfaces(newLp, oldLp, netId); 4244 updateMtu(newLp, oldLp); 4245 updateTcpBufferSizes(networkAgent); 4246 // TODO - figure out what to do for clat 4247// for (LinkProperties lp : newLp.getStackedLinks()) { 4248// updateMtu(lp, null); 4249// } 4250 final boolean flushDns = updateRoutes(newLp, oldLp, netId); 4251 updateDnses(newLp, oldLp, netId, flushDns); 4252 updateClat(newLp, oldLp, networkAgent); 4253 if (isDefaultNetwork(networkAgent)) handleApplyDefaultProxy(newLp.getHttpProxy()); 4254 } 4255 4256 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { 4257 // Update 464xlat state. 4258 if (mClat.requiresClat(na)) { 4259 4260 // If the connection was previously using clat, but is not using it now, stop the clat 4261 // daemon. Normally, this happens automatically when the connection disconnects, but if 4262 // the disconnect is not reported, or if the connection's LinkProperties changed for 4263 // some other reason (e.g., handoff changes the IP addresses on the link), it would 4264 // still be running. If it's not running, then stopping it is a no-op. 4265 if (Nat464Xlat.isRunningClat(oldLp) && !Nat464Xlat.isRunningClat(newLp)) { 4266 mClat.stopClat(); 4267 } 4268 // If the link requires clat to be running, then start the daemon now. 4269 if (na.networkInfo.isConnected()) { 4270 mClat.startClat(na); 4271 } else { 4272 mClat.stopClat(); 4273 } 4274 } 4275 } 4276 4277 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 4278 CompareResult<String> interfaceDiff = new CompareResult<String>(); 4279 if (oldLp != null) { 4280 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 4281 } else if (newLp != null) { 4282 interfaceDiff.added = newLp.getAllInterfaceNames(); 4283 } 4284 for (String iface : interfaceDiff.added) { 4285 try { 4286 if (DBG) log("Adding iface " + iface + " to network " + netId); 4287 mNetd.addInterfaceToNetwork(iface, netId); 4288 } catch (Exception e) { 4289 loge("Exception adding interface: " + e); 4290 } 4291 } 4292 for (String iface : interfaceDiff.removed) { 4293 try { 4294 if (DBG) log("Removing iface " + iface + " from network " + netId); 4295 mNetd.removeInterfaceFromNetwork(iface, netId); 4296 } catch (Exception e) { 4297 loge("Exception removing interface: " + e); 4298 } 4299 } 4300 } 4301 4302 /** 4303 * Have netd update routes from oldLp to newLp. 4304 * @return true if routes changed between oldLp and newLp 4305 */ 4306 private boolean updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 4307 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 4308 if (oldLp != null) { 4309 routeDiff = oldLp.compareAllRoutes(newLp); 4310 } else if (newLp != null) { 4311 routeDiff.added = newLp.getAllRoutes(); 4312 } 4313 4314 // add routes before removing old in case it helps with continuous connectivity 4315 4316 // do this twice, adding non-nexthop routes first, then routes they are dependent on 4317 for (RouteInfo route : routeDiff.added) { 4318 if (route.hasGateway()) continue; 4319 if (DBG) log("Adding Route [" + route + "] to network " + netId); 4320 try { 4321 mNetd.addRoute(netId, route); 4322 } catch (Exception e) { 4323 if ((route.getDestination().getAddress() instanceof Inet4Address) || VDBG) { 4324 loge("Exception in addRoute for non-gateway: " + e); 4325 } 4326 } 4327 } 4328 for (RouteInfo route : routeDiff.added) { 4329 if (route.hasGateway() == false) continue; 4330 if (DBG) log("Adding Route [" + route + "] to network " + netId); 4331 try { 4332 mNetd.addRoute(netId, route); 4333 } catch (Exception e) { 4334 if ((route.getGateway() instanceof Inet4Address) || VDBG) { 4335 loge("Exception in addRoute for gateway: " + e); 4336 } 4337 } 4338 } 4339 4340 for (RouteInfo route : routeDiff.removed) { 4341 if (DBG) log("Removing Route [" + route + "] from network " + netId); 4342 try { 4343 mNetd.removeRoute(netId, route); 4344 } catch (Exception e) { 4345 loge("Exception in removeRoute: " + e); 4346 } 4347 } 4348 return !routeDiff.added.isEmpty() || !routeDiff.removed.isEmpty(); 4349 } 4350 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId, boolean flush) { 4351 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 4352 Collection<InetAddress> dnses = newLp.getDnsServers(); 4353 if (dnses.size() == 0 && mDefaultDns != null) { 4354 dnses = new ArrayList(); 4355 dnses.add(mDefaultDns); 4356 if (DBG) { 4357 loge("no dns provided for netId " + netId + ", so using defaults"); 4358 } 4359 } 4360 if (DBG) log("Setting Dns servers for network " + netId + " to " + dnses); 4361 try { 4362 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 4363 newLp.getDomains()); 4364 } catch (Exception e) { 4365 loge("Exception in setDnsServersForNetwork: " + e); 4366 } 4367 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 4368 if (defaultNai != null && defaultNai.network.netId == netId) { 4369 setDefaultDnsSystemProperties(dnses); 4370 } 4371 flushVmDnsCache(); 4372 } else if (flush) { 4373 try { 4374 mNetd.flushNetworkDnsCache(netId); 4375 } catch (Exception e) { 4376 loge("Exception in flushNetworkDnsCache: " + e); 4377 } 4378 flushVmDnsCache(); 4379 } 4380 } 4381 4382 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 4383 int last = 0; 4384 for (InetAddress dns : dnses) { 4385 ++last; 4386 String key = "net.dns" + last; 4387 String value = dns.getHostAddress(); 4388 SystemProperties.set(key, value); 4389 } 4390 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 4391 String key = "net.dns" + i; 4392 SystemProperties.set(key, ""); 4393 } 4394 mNumDnsEntries = last; 4395 } 4396 4397 4398 private void updateCapabilities(NetworkAgentInfo networkAgent, 4399 NetworkCapabilities networkCapabilities) { 4400 // TODO - what else here? Verify still satisfies everybody? 4401 // Check if satisfies somebody new? call callbacks? 4402 synchronized (networkAgent) { 4403 networkAgent.networkCapabilities = networkCapabilities; 4404 } 4405 } 4406 4407 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 4408 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 4409 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 4410 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 4411 networkRequest); 4412 } 4413 } 4414 4415 private void callCallbackForRequest(NetworkRequestInfo nri, 4416 NetworkAgentInfo networkAgent, int notificationType) { 4417 if (nri.messenger == null) return; // Default request has no msgr 4418 Object o; 4419 int a1 = 0; 4420 int a2 = 0; 4421 switch (notificationType) { 4422 case ConnectivityManager.CALLBACK_LOSING: 4423 a1 = 30 * 1000; // TODO - read this from NetworkMonitor 4424 // fall through 4425 case ConnectivityManager.CALLBACK_PRECHECK: 4426 case ConnectivityManager.CALLBACK_AVAILABLE: 4427 case ConnectivityManager.CALLBACK_LOST: 4428 case ConnectivityManager.CALLBACK_CAP_CHANGED: 4429 case ConnectivityManager.CALLBACK_IP_CHANGED: { 4430 o = new NetworkRequest(nri.request); 4431 a2 = networkAgent.network.netId; 4432 break; 4433 } 4434 case ConnectivityManager.CALLBACK_UNAVAIL: 4435 case ConnectivityManager.CALLBACK_RELEASED: { 4436 o = new NetworkRequest(nri.request); 4437 break; 4438 } 4439 default: { 4440 loge("Unknown notificationType " + notificationType); 4441 return; 4442 } 4443 } 4444 Message msg = Message.obtain(); 4445 msg.arg1 = a1; 4446 msg.arg2 = a2; 4447 msg.obj = o; 4448 msg.what = notificationType; 4449 try { 4450 if (VDBG) { 4451 log("sending notification " + notifyTypeToName(notificationType) + 4452 " for " + nri.request); 4453 } 4454 nri.messenger.send(msg); 4455 } catch (RemoteException e) { 4456 // may occur naturally in the race of binder death. 4457 loge("RemoteException caught trying to send a callback msg for " + nri.request); 4458 } 4459 } 4460 4461 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 4462 if (oldNetwork == null) { 4463 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 4464 return; 4465 } 4466 if (DBG) { 4467 log("handleLingerComplete for " + oldNetwork.name()); 4468 for (int i = 0; i < oldNetwork.networkRequests.size(); i++) { 4469 NetworkRequest nr = oldNetwork.networkRequests.valueAt(i); 4470 // Ignore listening requests. 4471 if (mNetworkRequests.get(nr).isRequest == false) continue; 4472 loge("Dead network still had at least " + nr); 4473 break; 4474 } 4475 } 4476 oldNetwork.asyncChannel.disconnect(); 4477 } 4478 4479 private void makeDefault(NetworkAgentInfo newNetwork) { 4480 if (DBG) log("Switching to new default network: " + newNetwork); 4481 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4482 setupDataActivityTracking(newNetwork); 4483 try { 4484 mNetd.setDefaultNetId(newNetwork.network.netId); 4485 } catch (Exception e) { 4486 loge("Exception setting default network :" + e); 4487 } 4488 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 4489 updateTcpBufferSizes(newNetwork); 4490 } 4491 4492 // Handles a network appearing or improving its score. 4493 // 4494 // - Evaluates all current NetworkRequests that can be 4495 // satisfied by newNetwork, and reassigns to newNetwork 4496 // any such requests for which newNetwork is the best. 4497 // 4498 // - Tears down any Networks that as a result are no longer 4499 // needed. A network is needed if it is the best network for 4500 // one or more NetworkRequests, or if it is a VPN. 4501 // 4502 // - Tears down newNetwork if it is validated but turns out to be 4503 // unneeded. Does not tear down newNetwork if it is 4504 // unvalidated, because future validation may improve 4505 // newNetwork's score enough that it is needed. 4506 // 4507 // NOTE: This function only adds NetworkRequests that "newNetwork" could satisfy, 4508 // it does not remove NetworkRequests that other Networks could better satisfy. 4509 // If you need to handle decreases in score, use {@link rematchAllNetworksAndRequests}. 4510 // This function should be used when possible instead of {@code rematchAllNetworksAndRequests} 4511 // as it performs better by a factor of the number of Networks. 4512 private void rematchNetworkAndRequests(NetworkAgentInfo newNetwork) { 4513 boolean keep = newNetwork.isVPN(); 4514 boolean isNewDefault = false; 4515 if (DBG) log("rematching " + newNetwork.name()); 4516 // Find and migrate to this Network any NetworkRequests for 4517 // which this network is now the best. 4518 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 4519 if (VDBG) log(" network has: " + newNetwork.networkCapabilities); 4520 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 4521 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 4522 if (newNetwork == currentNetwork) { 4523 if (DBG) { 4524 log("Network " + newNetwork.name() + " was already satisfying" + 4525 " request " + nri.request.requestId + ". No change."); 4526 } 4527 keep = true; 4528 continue; 4529 } 4530 4531 // check if it satisfies the NetworkCapabilities 4532 if (VDBG) log(" checking if request is satisfied: " + nri.request); 4533 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 4534 newNetwork.networkCapabilities)) { 4535 if (!nri.isRequest) { 4536 // This is not a request, it's a callback listener. 4537 // Add it to newNetwork regardless of score. 4538 newNetwork.addRequest(nri.request); 4539 continue; 4540 } 4541 4542 // next check if it's better than any current network we're using for 4543 // this request 4544 if (VDBG) { 4545 log("currentScore = " + 4546 (currentNetwork != null ? currentNetwork.getCurrentScore() : 0) + 4547 ", newScore = " + newNetwork.getCurrentScore()); 4548 } 4549 if (currentNetwork == null || 4550 currentNetwork.getCurrentScore() < newNetwork.getCurrentScore()) { 4551 if (currentNetwork != null) { 4552 if (DBG) log(" accepting network in place of " + currentNetwork.name()); 4553 currentNetwork.networkRequests.remove(nri.request.requestId); 4554 currentNetwork.networkLingered.add(nri.request); 4555 affectedNetworks.add(currentNetwork); 4556 } else { 4557 if (DBG) log(" accepting network in place of null"); 4558 } 4559 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 4560 newNetwork.addRequest(nri.request); 4561 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 4562 mLegacyTypeTracker.add(nri.request.legacyType, newNetwork); 4563 } 4564 keep = true; 4565 // Tell NetworkFactories about the new score, so they can stop 4566 // trying to connect if they know they cannot match it. 4567 // TODO - this could get expensive if we have alot of requests for this 4568 // network. Think about if there is a way to reduce this. Push 4569 // netid->request mapping to each factory? 4570 sendUpdatedScoreToFactories(nri.request, newNetwork.getCurrentScore()); 4571 if (mDefaultRequest.requestId == nri.request.requestId) { 4572 isNewDefault = true; 4573 // TODO: Remove following line. It's redundant with makeDefault call. 4574 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4575 if (newNetwork.linkProperties != null) { 4576 updateTcpBufferSizes(newNetwork); 4577 setDefaultDnsSystemProperties( 4578 newNetwork.linkProperties.getDnsServers()); 4579 } else { 4580 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 4581 } 4582 // Maintain the illusion: since the legacy API only 4583 // understands one network at a time, we must pretend 4584 // that the current default network disconnected before 4585 // the new one connected. 4586 if (currentNetwork != null) { 4587 mLegacyTypeTracker.remove(currentNetwork.networkInfo.getType(), 4588 currentNetwork); 4589 } 4590 mDefaultInetConditionPublished = newNetwork.validated ? 100 : 0; 4591 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 4592 } 4593 } 4594 } 4595 } 4596 // Linger any networks that are no longer needed. 4597 for (NetworkAgentInfo nai : affectedNetworks) { 4598 boolean teardown = !nai.isVPN(); 4599 for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { 4600 NetworkRequest nr = nai.networkRequests.valueAt(i); 4601 try { 4602 if (mNetworkRequests.get(nr).isRequest) { 4603 teardown = false; 4604 } 4605 } catch (Exception e) { 4606 loge("Request " + nr + " not found in mNetworkRequests."); 4607 loge(" it came from request list of " + nai.name()); 4608 } 4609 } 4610 if (teardown) { 4611 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 4612 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 4613 } else { 4614 // not going to linger, so kill the list of linger networks.. only 4615 // notify them of linger if it happens as the result of gaining another, 4616 // but if they transition and old network stays up, don't tell them of linger 4617 // or very delayed loss 4618 nai.networkLingered.clear(); 4619 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 4620 } 4621 } 4622 if (keep) { 4623 if (isNewDefault) { 4624 // Notify system services that this network is up. 4625 makeDefault(newNetwork); 4626 synchronized (ConnectivityService.this) { 4627 // have a new default network, release the transition wakelock in 4628 // a second if it's held. The second pause is to allow apps 4629 // to reconnect over the new network 4630 if (mNetTransitionWakeLock.isHeld()) { 4631 mHandler.sendMessageDelayed(mHandler.obtainMessage( 4632 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 4633 mNetTransitionWakeLockSerialNumber, 0), 4634 1000); 4635 } 4636 } 4637 } 4638 4639 // Notify battery stats service about this network, both the normal 4640 // interface and any stacked links. 4641 // TODO: Avoid redoing this; this must only be done once when a network comes online. 4642 try { 4643 final IBatteryStats bs = BatteryStatsService.getService(); 4644 final int type = newNetwork.networkInfo.getType(); 4645 4646 final String baseIface = newNetwork.linkProperties.getInterfaceName(); 4647 bs.noteNetworkInterfaceType(baseIface, type); 4648 for (LinkProperties stacked : newNetwork.linkProperties.getStackedLinks()) { 4649 final String stackedIface = stacked.getInterfaceName(); 4650 bs.noteNetworkInterfaceType(stackedIface, type); 4651 NetworkStatsFactory.noteStackedIface(stackedIface, baseIface); 4652 } 4653 } catch (RemoteException ignored) { 4654 } 4655 4656 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 4657 } else if (newNetwork.validated) { 4658 // Only tear down validated networks here. Leave unvalidated to either become 4659 // validated (and get evaluated against peers, one losing here) or 4660 // NetworkMonitor reports a bad network and we tear it down then. 4661 // TODO: Could teardown unvalidated networks when their NetworkCapabilities 4662 // satisfy no NetworkRequests. 4663 if (DBG && newNetwork.networkRequests.size() != 0) { 4664 loge("tearing down network with live requests:"); 4665 for (int i=0; i < newNetwork.networkRequests.size(); i++) { 4666 loge(" " + newNetwork.networkRequests.valueAt(i)); 4667 } 4668 } 4669 if (DBG) log("Validated network turns out to be unwanted. Tear it down."); 4670 newNetwork.asyncChannel.disconnect(); 4671 } 4672 } 4673 4674 // Attempt to rematch all Networks with NetworkRequests. This may result in Networks 4675 // being disconnected. 4676 // If only one Network's score or capabilities have been modified since the last time 4677 // this function was called, pass this Network in via the "changed" arugment, otherwise 4678 // pass null. 4679 // If only one Network has been changed but its NetworkCapabilities have not changed, 4680 // pass in the Network's score (from getCurrentScore()) prior to the change via 4681 // "oldScore", otherwise pass changed.getCurrentScore() or 0 if "changed" is null. 4682 private void rematchAllNetworksAndRequests(NetworkAgentInfo changed, int oldScore) { 4683 // TODO: This may get slow. The "changed" parameter is provided for future optimization 4684 // to avoid the slowness. It is not simply enough to process just "changed", for 4685 // example in the case where "changed"'s score decreases and another network should begin 4686 // satifying a NetworkRequest that "changed" currently satisfies. 4687 4688 // Optimization: Only reprocess "changed" if its score improved. This is safe because it 4689 // can only add more NetworkRequests satisfied by "changed", and this is exactly what 4690 // rematchNetworkAndRequests() handles. 4691 if (changed != null && oldScore < changed.getCurrentScore()) { 4692 rematchNetworkAndRequests(changed); 4693 } else { 4694 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 4695 rematchNetworkAndRequests(nai); 4696 } 4697 } 4698 } 4699 4700 private void updateInetCondition(NetworkAgentInfo nai, boolean valid) { 4701 // Don't bother updating until we've graduated to validated at least once. 4702 if (!nai.validated) return; 4703 // For now only update icons for default connection. 4704 // TODO: Update WiFi and cellular icons separately. b/17237507 4705 if (!isDefaultNetwork(nai)) return; 4706 4707 int newInetCondition = valid ? 100 : 0; 4708 // Don't repeat publish. 4709 if (newInetCondition == mDefaultInetConditionPublished) return; 4710 4711 mDefaultInetConditionPublished = newInetCondition; 4712 sendInetConditionBroadcast(nai.networkInfo); 4713 } 4714 4715 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 4716 NetworkInfo.State state = newInfo.getState(); 4717 NetworkInfo oldInfo = null; 4718 synchronized (networkAgent) { 4719 oldInfo = networkAgent.networkInfo; 4720 networkAgent.networkInfo = newInfo; 4721 } 4722 if (networkAgent.isVPN() && mLockdownTracker != null) { 4723 mLockdownTracker.onVpnStateChanged(newInfo); 4724 } 4725 4726 if (oldInfo != null && oldInfo.getState() == state) { 4727 if (VDBG) log("ignoring duplicate network state non-change"); 4728 return; 4729 } 4730 if (DBG) { 4731 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 4732 (oldInfo == null ? "null" : oldInfo.getState()) + 4733 " to " + state); 4734 } 4735 4736 if (state == NetworkInfo.State.CONNECTED && !networkAgent.created) { 4737 try { 4738 // This should never fail. Specifying an already in use NetID will cause failure. 4739 if (networkAgent.isVPN()) { 4740 mNetd.createVirtualNetwork(networkAgent.network.netId, 4741 !networkAgent.linkProperties.getDnsServers().isEmpty(), 4742 (networkAgent.networkMisc == null || 4743 !networkAgent.networkMisc.allowBypass)); 4744 } else { 4745 mNetd.createPhysicalNetwork(networkAgent.network.netId); 4746 } 4747 } catch (Exception e) { 4748 loge("Error creating network " + networkAgent.network.netId + ": " 4749 + e.getMessage()); 4750 return; 4751 } 4752 networkAgent.created = true; 4753 updateLinkProperties(networkAgent, null); 4754 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 4755 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 4756 if (networkAgent.isVPN()) { 4757 // Temporarily disable the default proxy (not global). 4758 synchronized (mProxyLock) { 4759 if (!mDefaultProxyDisabled) { 4760 mDefaultProxyDisabled = true; 4761 if (mGlobalProxy == null && mDefaultProxy != null) { 4762 sendProxyBroadcast(null); 4763 } 4764 } 4765 } 4766 // TODO: support proxy per network. 4767 } 4768 // Consider network even though it is not yet validated. 4769 // TODO: All the if-statement conditions can be removed now that validation only confers 4770 // a score increase. 4771 if (mNetworkForRequestId.get(mDefaultRequest.requestId) == null && 4772 networkAgent.isVPN() == false && 4773 mDefaultRequest.networkCapabilities.satisfiedByNetworkCapabilities( 4774 networkAgent.networkCapabilities)) { 4775 rematchNetworkAndRequests(networkAgent); 4776 } 4777 } else if (state == NetworkInfo.State.DISCONNECTED || 4778 state == NetworkInfo.State.SUSPENDED) { 4779 networkAgent.asyncChannel.disconnect(); 4780 if (networkAgent.isVPN()) { 4781 synchronized (mProxyLock) { 4782 if (mDefaultProxyDisabled) { 4783 mDefaultProxyDisabled = false; 4784 if (mGlobalProxy == null && mDefaultProxy != null) { 4785 sendProxyBroadcast(mDefaultProxy); 4786 } 4787 } 4788 } 4789 } 4790 } 4791 } 4792 4793 private void updateNetworkScore(NetworkAgentInfo nai, int score) { 4794 if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); 4795 if (score < 0) { 4796 loge("updateNetworkScore for " + nai.name() + " got a negative score (" + score + 4797 "). Bumping score to min of 0"); 4798 score = 0; 4799 } 4800 4801 final int oldScore = nai.getCurrentScore(); 4802 nai.setCurrentScore(score); 4803 4804 if (nai.created) rematchAllNetworksAndRequests(nai, oldScore); 4805 4806 for (int i = 0; i < nai.networkRequests.size(); i++) { 4807 NetworkRequest nr = nai.networkRequests.valueAt(i); 4808 // Don't send listening requests to factories. b/17393458 4809 if (mNetworkRequests.get(nr).isRequest == false) continue; 4810 sendUpdatedScoreToFactories(nr, score); 4811 } 4812 } 4813 4814 // notify only this one new request of the current state 4815 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 4816 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 4817 // TODO - read state from monitor to decide what to send. 4818// if (nai.networkMonitor.isLingering()) { 4819// notifyType = NetworkCallbacks.LOSING; 4820// } else if (nai.networkMonitor.isEvaluating()) { 4821// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 4822// } 4823 callCallbackForRequest(nri, nai, notifyType); 4824 } 4825 4826 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 4827 // The NetworkInfo we actually send out has no bearing on the real 4828 // state of affairs. For example, if the default connection is mobile, 4829 // and a request for HIPRI has just gone away, we need to pretend that 4830 // HIPRI has just disconnected. So we need to set the type to HIPRI and 4831 // the state to DISCONNECTED, even though the network is of type MOBILE 4832 // and is still connected. 4833 NetworkInfo info = new NetworkInfo(nai.networkInfo); 4834 info.setType(type); 4835 if (connected) { 4836 info.setDetailedState(DetailedState.CONNECTED, null, info.getExtraInfo()); 4837 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 4838 } else { 4839 info.setDetailedState(DetailedState.DISCONNECTED, null, info.getExtraInfo()); 4840 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 4841 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 4842 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 4843 if (info.isFailover()) { 4844 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 4845 nai.networkInfo.setFailover(false); 4846 } 4847 if (info.getReason() != null) { 4848 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 4849 } 4850 if (info.getExtraInfo() != null) { 4851 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 4852 } 4853 NetworkAgentInfo newDefaultAgent = null; 4854 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 4855 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 4856 if (newDefaultAgent != null) { 4857 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 4858 newDefaultAgent.networkInfo); 4859 } else { 4860 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 4861 } 4862 } 4863 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 4864 mDefaultInetConditionPublished); 4865 final Intent immediateIntent = new Intent(intent); 4866 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 4867 sendStickyBroadcast(immediateIntent); 4868 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 4869 if (newDefaultAgent != null) { 4870 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 4871 getConnectivityChangeDelay()); 4872 } 4873 } 4874 } 4875 4876 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 4877 if (DBG) log("notifyType " + notifyTypeToName(notifyType) + " for " + networkAgent.name()); 4878 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 4879 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 4880 NetworkRequestInfo nri = mNetworkRequests.get(nr); 4881 if (VDBG) log(" sending notification for " + nr); 4882 callCallbackForRequest(nri, networkAgent, notifyType); 4883 } 4884 } 4885 4886 private String notifyTypeToName(int notifyType) { 4887 switch (notifyType) { 4888 case ConnectivityManager.CALLBACK_PRECHECK: return "PRECHECK"; 4889 case ConnectivityManager.CALLBACK_AVAILABLE: return "AVAILABLE"; 4890 case ConnectivityManager.CALLBACK_LOSING: return "LOSING"; 4891 case ConnectivityManager.CALLBACK_LOST: return "LOST"; 4892 case ConnectivityManager.CALLBACK_UNAVAIL: return "UNAVAILABLE"; 4893 case ConnectivityManager.CALLBACK_CAP_CHANGED: return "CAP_CHANGED"; 4894 case ConnectivityManager.CALLBACK_IP_CHANGED: return "IP_CHANGED"; 4895 case ConnectivityManager.CALLBACK_RELEASED: return "RELEASED"; 4896 } 4897 return "UNKNOWN"; 4898 } 4899 4900 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 4901 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4902 if (nai != null) { 4903 synchronized (nai) { 4904 return new LinkProperties(nai.linkProperties); 4905 } 4906 } 4907 return new LinkProperties(); 4908 } 4909 4910 private NetworkInfo getNetworkInfoForType(int networkType) { 4911 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 4912 return null; 4913 4914 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4915 if (nai != null) { 4916 NetworkInfo result = new NetworkInfo(nai.networkInfo); 4917 result.setType(networkType); 4918 return result; 4919 } else { 4920 NetworkInfo result = new NetworkInfo( 4921 networkType, 0, ConnectivityManager.getNetworkTypeName(networkType), ""); 4922 result.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, null, null); 4923 return result; 4924 } 4925 } 4926 4927 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 4928 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4929 if (nai != null) { 4930 synchronized (nai) { 4931 return new NetworkCapabilities(nai.networkCapabilities); 4932 } 4933 } 4934 return new NetworkCapabilities(); 4935 } 4936 4937 @Override 4938 public boolean addVpnAddress(String address, int prefixLength) { 4939 throwIfLockdownEnabled(); 4940 int user = UserHandle.getUserId(Binder.getCallingUid()); 4941 synchronized (mVpns) { 4942 return mVpns.get(user).addAddress(address, prefixLength); 4943 } 4944 } 4945 4946 @Override 4947 public boolean removeVpnAddress(String address, int prefixLength) { 4948 throwIfLockdownEnabled(); 4949 int user = UserHandle.getUserId(Binder.getCallingUid()); 4950 synchronized (mVpns) { 4951 return mVpns.get(user).removeAddress(address, prefixLength); 4952 } 4953 } 4954} 4955