ConnectivityService.java revision 60446165d8bd44f72cec8d0c5583a688369fa660
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 synchronized (mRulesLock) { 983 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 984 networkType++) { 985 if (getNetworkInfoForType(networkType) != null) { 986 result.add(getFilteredNetworkInfo(networkType, uid)); 987 } 988 } 989 } 990 return result.toArray(new NetworkInfo[result.size()]); 991 } 992 993 @Override 994 public Network getNetworkForType(int networkType) { 995 enforceAccessPermission(); 996 final int uid = Binder.getCallingUid(); 997 if (isNetworkBlocked(networkType, uid)) { 998 return null; 999 } 1000 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1001 return (nai == null) ? null : nai.network; 1002 } 1003 1004 @Override 1005 public Network[] getAllNetworks() { 1006 enforceAccessPermission(); 1007 final ArrayList<Network> result = new ArrayList(); 1008 synchronized (mNetworkForNetId) { 1009 for (int i = 0; i < mNetworkForNetId.size(); i++) { 1010 result.add(new Network(mNetworkForNetId.valueAt(i).network)); 1011 } 1012 } 1013 return result.toArray(new Network[result.size()]); 1014 } 1015 1016 @Override 1017 public boolean isNetworkSupported(int networkType) { 1018 enforceAccessPermission(); 1019 return (isNetworkTypeValid(networkType) && (getNetworkInfoForType(networkType) != null)); 1020 } 1021 1022 /** 1023 * Return LinkProperties for the active (i.e., connected) default 1024 * network interface. It is assumed that at most one default network 1025 * is active at a time. If more than one is active, it is indeterminate 1026 * which will be returned. 1027 * @return the ip properties for the active network, or {@code null} if 1028 * none is active 1029 */ 1030 @Override 1031 public LinkProperties getActiveLinkProperties() { 1032 return getLinkPropertiesForType(mActiveDefaultNetwork); 1033 } 1034 1035 @Override 1036 public LinkProperties getLinkPropertiesForType(int networkType) { 1037 enforceAccessPermission(); 1038 if (isNetworkTypeValid(networkType)) { 1039 return getLinkPropertiesForTypeInternal(networkType); 1040 } 1041 return null; 1042 } 1043 1044 // TODO - this should be ALL networks 1045 @Override 1046 public LinkProperties getLinkProperties(Network network) { 1047 enforceAccessPermission(); 1048 NetworkAgentInfo nai = null; 1049 synchronized (mNetworkForNetId) { 1050 nai = mNetworkForNetId.get(network.netId); 1051 } 1052 1053 if (nai != null) { 1054 synchronized (nai) { 1055 return new LinkProperties(nai.linkProperties); 1056 } 1057 } 1058 return null; 1059 } 1060 1061 @Override 1062 public NetworkCapabilities getNetworkCapabilities(Network network) { 1063 enforceAccessPermission(); 1064 NetworkAgentInfo nai = null; 1065 synchronized (mNetworkForNetId) { 1066 nai = mNetworkForNetId.get(network.netId); 1067 } 1068 if (nai != null) { 1069 synchronized (nai) { 1070 return new NetworkCapabilities(nai.networkCapabilities); 1071 } 1072 } 1073 return null; 1074 } 1075 1076 @Override 1077 public NetworkState[] getAllNetworkState() { 1078 enforceAccessPermission(); 1079 final int uid = Binder.getCallingUid(); 1080 final ArrayList<NetworkState> result = Lists.newArrayList(); 1081 synchronized (mRulesLock) { 1082 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1083 networkType++) { 1084 if (getNetworkInfoForType(networkType) != null) { 1085 final NetworkInfo info = getFilteredNetworkInfo(networkType, uid); 1086 final LinkProperties lp = getLinkPropertiesForTypeInternal(networkType); 1087 final NetworkCapabilities netcap = getNetworkCapabilitiesForType(networkType); 1088 result.add(new NetworkState(info, lp, netcap)); 1089 } 1090 } 1091 } 1092 return result.toArray(new NetworkState[result.size()]); 1093 } 1094 1095 private NetworkState getNetworkStateUnchecked(int networkType) { 1096 if (isNetworkTypeValid(networkType)) { 1097 NetworkInfo info = getNetworkInfoForType(networkType); 1098 if (info != null) { 1099 return new NetworkState(info, 1100 getLinkPropertiesForTypeInternal(networkType), 1101 getNetworkCapabilitiesForType(networkType)); 1102 } 1103 } 1104 return null; 1105 } 1106 1107 @Override 1108 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1109 enforceAccessPermission(); 1110 1111 final long token = Binder.clearCallingIdentity(); 1112 try { 1113 final NetworkState state = getNetworkStateUnchecked(mActiveDefaultNetwork); 1114 if (state != null) { 1115 try { 1116 return mPolicyManager.getNetworkQuotaInfo(state); 1117 } catch (RemoteException e) { 1118 } 1119 } 1120 return null; 1121 } finally { 1122 Binder.restoreCallingIdentity(token); 1123 } 1124 } 1125 1126 @Override 1127 public boolean isActiveNetworkMetered() { 1128 enforceAccessPermission(); 1129 final long token = Binder.clearCallingIdentity(); 1130 try { 1131 return isNetworkMeteredUnchecked(mActiveDefaultNetwork); 1132 } finally { 1133 Binder.restoreCallingIdentity(token); 1134 } 1135 } 1136 1137 private boolean isNetworkMeteredUnchecked(int networkType) { 1138 final NetworkState state = getNetworkStateUnchecked(networkType); 1139 if (state != null) { 1140 try { 1141 return mPolicyManager.isNetworkMetered(state); 1142 } catch (RemoteException e) { 1143 } 1144 } 1145 return false; 1146 } 1147 1148 private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { 1149 @Override 1150 public void interfaceClassDataActivityChanged(String label, boolean active, long tsNanos) { 1151 int deviceType = Integer.parseInt(label); 1152 sendDataActivityBroadcast(deviceType, active, tsNanos); 1153 } 1154 }; 1155 1156 /** 1157 * Ensure that a network route exists to deliver traffic to the specified 1158 * host via the specified network interface. 1159 * @param networkType the type of the network over which traffic to the 1160 * specified host is to be routed 1161 * @param hostAddress the IP address of the host to which the route is 1162 * desired 1163 * @return {@code true} on success, {@code false} on failure 1164 */ 1165 public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress) { 1166 enforceChangePermission(); 1167 if (mProtectedNetworks.contains(networkType)) { 1168 enforceConnectivityInternalPermission(); 1169 } 1170 1171 InetAddress addr; 1172 try { 1173 addr = InetAddress.getByAddress(hostAddress); 1174 } catch (UnknownHostException e) { 1175 if (DBG) log("requestRouteToHostAddress got " + e.toString()); 1176 return false; 1177 } 1178 1179 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1180 if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); 1181 return false; 1182 } 1183 1184 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1185 if (nai == null) { 1186 if (mLegacyTypeTracker.isTypeSupported(networkType) == false) { 1187 if (DBG) log("requestRouteToHostAddress on unsupported network: " + networkType); 1188 } else { 1189 if (DBG) log("requestRouteToHostAddress on down network: " + networkType); 1190 } 1191 return false; 1192 } 1193 1194 DetailedState netState; 1195 synchronized (nai) { 1196 netState = nai.networkInfo.getDetailedState(); 1197 } 1198 1199 if (netState != DetailedState.CONNECTED && netState != DetailedState.CAPTIVE_PORTAL_CHECK) { 1200 if (VDBG) { 1201 log("requestRouteToHostAddress on down network " 1202 + "(" + networkType + ") - dropped" 1203 + " netState=" + netState); 1204 } 1205 return false; 1206 } 1207 1208 final int uid = Binder.getCallingUid(); 1209 final long token = Binder.clearCallingIdentity(); 1210 try { 1211 LinkProperties lp; 1212 int netId; 1213 synchronized (nai) { 1214 lp = nai.linkProperties; 1215 netId = nai.network.netId; 1216 } 1217 boolean ok = addLegacyRouteToHost(lp, addr, netId, uid); 1218 if (DBG) log("requestRouteToHostAddress ok=" + ok); 1219 return ok; 1220 } finally { 1221 Binder.restoreCallingIdentity(token); 1222 } 1223 } 1224 1225 private boolean addLegacyRouteToHost(LinkProperties lp, InetAddress addr, int netId, int uid) { 1226 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), addr); 1227 if (bestRoute == null) { 1228 bestRoute = RouteInfo.makeHostRoute(addr, lp.getInterfaceName()); 1229 } else { 1230 String iface = bestRoute.getInterface(); 1231 if (bestRoute.getGateway().equals(addr)) { 1232 // if there is no better route, add the implied hostroute for our gateway 1233 bestRoute = RouteInfo.makeHostRoute(addr, iface); 1234 } else { 1235 // if we will connect to this through another route, add a direct route 1236 // to it's gateway 1237 bestRoute = RouteInfo.makeHostRoute(addr, bestRoute.getGateway(), iface); 1238 } 1239 } 1240 if (DBG) log("Adding " + bestRoute + " for interface " + bestRoute.getInterface()); 1241 try { 1242 mNetd.addLegacyRouteForNetId(netId, bestRoute, uid); 1243 } catch (Exception e) { 1244 // never crash - catch them all 1245 if (DBG) loge("Exception trying to add a route: " + e); 1246 return false; 1247 } 1248 return true; 1249 } 1250 1251 public void setDataDependency(int networkType, boolean met) { 1252 enforceConnectivityInternalPermission(); 1253 1254 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_DEPENDENCY_MET, 1255 (met ? ENABLED : DISABLED), networkType)); 1256 } 1257 1258 private void handleSetDependencyMet(int networkType, boolean met) { 1259 if (mNetTrackers[networkType] != null) { 1260 if (DBG) { 1261 log("handleSetDependencyMet(" + networkType + ", " + met + ")"); 1262 } 1263 mNetTrackers[networkType].setDependencyMet(met); 1264 } 1265 } 1266 1267 private INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() { 1268 @Override 1269 public void onUidRulesChanged(int uid, int uidRules) { 1270 // caller is NPMS, since we only register with them 1271 if (LOGD_RULES) { 1272 log("onUidRulesChanged(uid=" + uid + ", uidRules=" + uidRules + ")"); 1273 } 1274 1275 synchronized (mRulesLock) { 1276 // skip update when we've already applied rules 1277 final int oldRules = mUidRules.get(uid, RULE_ALLOW_ALL); 1278 if (oldRules == uidRules) return; 1279 1280 mUidRules.put(uid, uidRules); 1281 } 1282 1283 // TODO: notify UID when it has requested targeted updates 1284 } 1285 1286 @Override 1287 public void onMeteredIfacesChanged(String[] meteredIfaces) { 1288 // caller is NPMS, since we only register with them 1289 if (LOGD_RULES) { 1290 log("onMeteredIfacesChanged(ifaces=" + Arrays.toString(meteredIfaces) + ")"); 1291 } 1292 1293 synchronized (mRulesLock) { 1294 mMeteredIfaces.clear(); 1295 for (String iface : meteredIfaces) { 1296 mMeteredIfaces.add(iface); 1297 } 1298 } 1299 } 1300 1301 @Override 1302 public void onRestrictBackgroundChanged(boolean restrictBackground) { 1303 // caller is NPMS, since we only register with them 1304 if (LOGD_RULES) { 1305 log("onRestrictBackgroundChanged(restrictBackground=" + restrictBackground + ")"); 1306 } 1307 1308 // kick off connectivity change broadcast for active network, since 1309 // global background policy change is radical. 1310 final int networkType = mActiveDefaultNetwork; 1311 if (isNetworkTypeValid(networkType)) { 1312 final NetworkStateTracker tracker = mNetTrackers[networkType]; 1313 if (tracker != null) { 1314 final NetworkInfo info = tracker.getNetworkInfo(); 1315 if (info != null && info.isConnected()) { 1316 sendConnectedBroadcast(info); 1317 } 1318 } 1319 } 1320 } 1321 }; 1322 1323 @Override 1324 public void setPolicyDataEnable(int networkType, boolean enabled) { 1325 // only someone like NPMS should only be calling us 1326 mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); 1327 1328 mHandler.sendMessage(mHandler.obtainMessage( 1329 EVENT_SET_POLICY_DATA_ENABLE, networkType, (enabled ? ENABLED : DISABLED))); 1330 } 1331 1332 private void handleSetPolicyDataEnable(int networkType, boolean enabled) { 1333 // TODO - handle this passing to factories 1334// if (isNetworkTypeValid(networkType)) { 1335// final NetworkStateTracker tracker = mNetTrackers[networkType]; 1336// if (tracker != null) { 1337// tracker.setPolicyDataEnable(enabled); 1338// } 1339// } 1340 } 1341 1342 private void enforceInternetPermission() { 1343 mContext.enforceCallingOrSelfPermission( 1344 android.Manifest.permission.INTERNET, 1345 "ConnectivityService"); 1346 } 1347 1348 private void enforceAccessPermission() { 1349 mContext.enforceCallingOrSelfPermission( 1350 android.Manifest.permission.ACCESS_NETWORK_STATE, 1351 "ConnectivityService"); 1352 } 1353 1354 private void enforceChangePermission() { 1355 mContext.enforceCallingOrSelfPermission( 1356 android.Manifest.permission.CHANGE_NETWORK_STATE, 1357 "ConnectivityService"); 1358 } 1359 1360 private void enforceTetherAccessPermission() { 1361 mContext.enforceCallingOrSelfPermission( 1362 android.Manifest.permission.ACCESS_NETWORK_STATE, 1363 "ConnectivityService"); 1364 } 1365 1366 private void enforceConnectivityInternalPermission() { 1367 mContext.enforceCallingOrSelfPermission( 1368 android.Manifest.permission.CONNECTIVITY_INTERNAL, 1369 "ConnectivityService"); 1370 } 1371 1372 public void sendConnectedBroadcast(NetworkInfo info) { 1373 enforceConnectivityInternalPermission(); 1374 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1375 sendGeneralBroadcast(info, CONNECTIVITY_ACTION); 1376 } 1377 1378 private void sendConnectedBroadcastDelayed(NetworkInfo info, int delayMs) { 1379 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1380 sendGeneralBroadcastDelayed(info, CONNECTIVITY_ACTION, delayMs); 1381 } 1382 1383 private void sendInetConditionBroadcast(NetworkInfo info) { 1384 sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION); 1385 } 1386 1387 private Intent makeGeneralIntent(NetworkInfo info, String bcastType) { 1388 if (mLockdownTracker != null) { 1389 info = mLockdownTracker.augmentNetworkInfo(info); 1390 } 1391 1392 Intent intent = new Intent(bcastType); 1393 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 1394 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 1395 if (info.isFailover()) { 1396 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 1397 info.setFailover(false); 1398 } 1399 if (info.getReason() != null) { 1400 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 1401 } 1402 if (info.getExtraInfo() != null) { 1403 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 1404 info.getExtraInfo()); 1405 } 1406 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 1407 return intent; 1408 } 1409 1410 private void sendGeneralBroadcast(NetworkInfo info, String bcastType) { 1411 sendStickyBroadcast(makeGeneralIntent(info, bcastType)); 1412 } 1413 1414 private void sendGeneralBroadcastDelayed(NetworkInfo info, String bcastType, int delayMs) { 1415 sendStickyBroadcastDelayed(makeGeneralIntent(info, bcastType), delayMs); 1416 } 1417 1418 private void sendDataActivityBroadcast(int deviceType, boolean active, long tsNanos) { 1419 Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); 1420 intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); 1421 intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); 1422 intent.putExtra(ConnectivityManager.EXTRA_REALTIME_NS, tsNanos); 1423 final long ident = Binder.clearCallingIdentity(); 1424 try { 1425 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, 1426 RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); 1427 } finally { 1428 Binder.restoreCallingIdentity(ident); 1429 } 1430 } 1431 1432 private void sendStickyBroadcast(Intent intent) { 1433 synchronized(this) { 1434 if (!mSystemReady) { 1435 mInitialBroadcast = new Intent(intent); 1436 } 1437 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1438 if (DBG) { 1439 log("sendStickyBroadcast: action=" + intent.getAction()); 1440 } 1441 1442 final long ident = Binder.clearCallingIdentity(); 1443 try { 1444 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1445 } finally { 1446 Binder.restoreCallingIdentity(ident); 1447 } 1448 } 1449 } 1450 1451 private void sendStickyBroadcastDelayed(Intent intent, int delayMs) { 1452 if (delayMs <= 0) { 1453 sendStickyBroadcast(intent); 1454 } else { 1455 if (VDBG) { 1456 log("sendStickyBroadcastDelayed: delayMs=" + delayMs + ", action=" 1457 + intent.getAction()); 1458 } 1459 mHandler.sendMessageDelayed(mHandler.obtainMessage( 1460 EVENT_SEND_STICKY_BROADCAST_INTENT, intent), delayMs); 1461 } 1462 } 1463 1464 void systemReady() { 1465 // start network sampling .. 1466 Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 1467 intent.setPackage(mContext.getPackageName()); 1468 1469 mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, 1470 SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); 1471 setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); 1472 1473 loadGlobalProxy(); 1474 1475 synchronized(this) { 1476 mSystemReady = true; 1477 if (mInitialBroadcast != null) { 1478 mContext.sendStickyBroadcastAsUser(mInitialBroadcast, UserHandle.ALL); 1479 mInitialBroadcast = null; 1480 } 1481 } 1482 // load the global proxy at startup 1483 mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY)); 1484 1485 // Try bringing up tracker, but if KeyStore isn't ready yet, wait 1486 // for user to unlock device. 1487 if (!updateLockdownVpn()) { 1488 final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_PRESENT); 1489 mContext.registerReceiver(mUserPresentReceiver, filter); 1490 } 1491 1492 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SYSTEM_READY)); 1493 } 1494 1495 private BroadcastReceiver mUserPresentReceiver = new BroadcastReceiver() { 1496 @Override 1497 public void onReceive(Context context, Intent intent) { 1498 // Try creating lockdown tracker, since user present usually means 1499 // unlocked keystore. 1500 if (updateLockdownVpn()) { 1501 mContext.unregisterReceiver(this); 1502 } 1503 } 1504 }; 1505 1506 /** @hide */ 1507 @Override 1508 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 1509 enforceConnectivityInternalPermission(); 1510 if (DBG) log("captivePortalCheckCompleted: ni=" + info + " captive=" + isCaptivePortal); 1511// mNetTrackers[info.getType()].captivePortalCheckCompleted(isCaptivePortal); 1512 } 1513 1514 /** 1515 * Setup data activity tracking for the given network. 1516 * 1517 * Every {@code setupDataActivityTracking} should be paired with a 1518 * {@link #removeDataActivityTracking} for cleanup. 1519 */ 1520 private void setupDataActivityTracking(NetworkAgentInfo networkAgent) { 1521 final String iface = networkAgent.linkProperties.getInterfaceName(); 1522 1523 final int timeout; 1524 int type = ConnectivityManager.TYPE_NONE; 1525 1526 if (networkAgent.networkCapabilities.hasTransport( 1527 NetworkCapabilities.TRANSPORT_CELLULAR)) { 1528 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1529 Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, 1530 5); 1531 type = ConnectivityManager.TYPE_MOBILE; 1532 } else if (networkAgent.networkCapabilities.hasTransport( 1533 NetworkCapabilities.TRANSPORT_WIFI)) { 1534 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1535 Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, 1536 0); 1537 type = ConnectivityManager.TYPE_WIFI; 1538 } else { 1539 // do not track any other networks 1540 timeout = 0; 1541 } 1542 1543 if (timeout > 0 && iface != null && type != ConnectivityManager.TYPE_NONE) { 1544 try { 1545 mNetd.addIdleTimer(iface, timeout, type); 1546 } catch (Exception e) { 1547 // You shall not crash! 1548 loge("Exception in setupDataActivityTracking " + e); 1549 } 1550 } 1551 } 1552 1553 /** 1554 * Remove data activity tracking when network disconnects. 1555 */ 1556 private void removeDataActivityTracking(NetworkAgentInfo networkAgent) { 1557 final String iface = networkAgent.linkProperties.getInterfaceName(); 1558 final NetworkCapabilities caps = networkAgent.networkCapabilities; 1559 1560 if (iface != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) || 1561 caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))) { 1562 try { 1563 // the call fails silently if no idletimer setup for this interface 1564 mNetd.removeIdleTimer(iface); 1565 } catch (Exception e) { 1566 loge("Exception in removeDataActivityTracking " + e); 1567 } 1568 } 1569 } 1570 1571 /** 1572 * Reads the network specific MTU size from reources. 1573 * and set it on it's iface. 1574 */ 1575 private void updateMtu(LinkProperties newLp, LinkProperties oldLp) { 1576 final String iface = newLp.getInterfaceName(); 1577 final int mtu = newLp.getMtu(); 1578 if (oldLp != null && newLp.isIdenticalMtu(oldLp)) { 1579 if (VDBG) log("identical MTU - not setting"); 1580 return; 1581 } 1582 1583 if (LinkProperties.isValidMtu(mtu, newLp.hasGlobalIPv6Address()) == false) { 1584 loge("Unexpected mtu value: " + mtu + ", " + iface); 1585 return; 1586 } 1587 1588 // Cannot set MTU without interface name 1589 if (TextUtils.isEmpty(iface)) { 1590 loge("Setting MTU size with null iface."); 1591 return; 1592 } 1593 1594 try { 1595 if (DBG) log("Setting MTU size: " + iface + ", " + mtu); 1596 mNetd.setMtu(iface, mtu); 1597 } catch (Exception e) { 1598 Slog.e(TAG, "exception in setMtu()" + e); 1599 } 1600 } 1601 1602 private static final String DEFAULT_TCP_BUFFER_SIZES = "4096,87380,110208,4096,16384,110208"; 1603 1604 private void updateTcpBufferSizes(NetworkAgentInfo nai) { 1605 if (isDefaultNetwork(nai) == false) { 1606 return; 1607 } 1608 1609 String tcpBufferSizes = nai.linkProperties.getTcpBufferSizes(); 1610 String[] values = null; 1611 if (tcpBufferSizes != null) { 1612 values = tcpBufferSizes.split(","); 1613 } 1614 1615 if (values == null || values.length != 6) { 1616 if (DBG) log("Invalid tcpBufferSizes string: " + tcpBufferSizes +", using defaults"); 1617 tcpBufferSizes = DEFAULT_TCP_BUFFER_SIZES; 1618 values = tcpBufferSizes.split(","); 1619 } 1620 1621 if (tcpBufferSizes.equals(mCurrentTcpBufferSizes)) return; 1622 1623 try { 1624 if (DBG) Slog.d(TAG, "Setting tx/rx TCP buffers to " + tcpBufferSizes); 1625 1626 final String prefix = "/sys/kernel/ipv4/tcp_"; 1627 FileUtils.stringToFile(prefix + "rmem_min", values[0]); 1628 FileUtils.stringToFile(prefix + "rmem_def", values[1]); 1629 FileUtils.stringToFile(prefix + "rmem_max", values[2]); 1630 FileUtils.stringToFile(prefix + "wmem_min", values[3]); 1631 FileUtils.stringToFile(prefix + "wmem_def", values[4]); 1632 FileUtils.stringToFile(prefix + "wmem_max", values[5]); 1633 mCurrentTcpBufferSizes = tcpBufferSizes; 1634 } catch (IOException e) { 1635 loge("Can't set TCP buffer sizes:" + e); 1636 } 1637 1638 final String defaultRwndKey = "net.tcp.default_init_rwnd"; 1639 int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0); 1640 Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(), 1641 Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue); 1642 final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd"; 1643 if (rwndValue != 0) { 1644 SystemProperties.set(sysctlKey, rwndValue.toString()); 1645 } 1646 } 1647 1648 private void flushVmDnsCache() { 1649 /* 1650 * Tell the VMs to toss their DNS caches 1651 */ 1652 Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE); 1653 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); 1654 /* 1655 * Connectivity events can happen before boot has completed ... 1656 */ 1657 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1658 final long ident = Binder.clearCallingIdentity(); 1659 try { 1660 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 1661 } finally { 1662 Binder.restoreCallingIdentity(ident); 1663 } 1664 } 1665 1666 @Override 1667 public int getRestoreDefaultNetworkDelay(int networkType) { 1668 String restoreDefaultNetworkDelayStr = SystemProperties.get( 1669 NETWORK_RESTORE_DELAY_PROP_NAME); 1670 if(restoreDefaultNetworkDelayStr != null && 1671 restoreDefaultNetworkDelayStr.length() != 0) { 1672 try { 1673 return Integer.valueOf(restoreDefaultNetworkDelayStr); 1674 } catch (NumberFormatException e) { 1675 } 1676 } 1677 // if the system property isn't set, use the value for the apn type 1678 int ret = RESTORE_DEFAULT_NETWORK_DELAY; 1679 1680 if ((networkType <= ConnectivityManager.MAX_NETWORK_TYPE) && 1681 (mNetConfigs[networkType] != null)) { 1682 ret = mNetConfigs[networkType].restoreTime; 1683 } 1684 return ret; 1685 } 1686 1687 @Override 1688 protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { 1689 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1690 if (mContext.checkCallingOrSelfPermission( 1691 android.Manifest.permission.DUMP) 1692 != PackageManager.PERMISSION_GRANTED) { 1693 pw.println("Permission Denial: can't dump ConnectivityService " + 1694 "from from pid=" + Binder.getCallingPid() + ", uid=" + 1695 Binder.getCallingUid()); 1696 return; 1697 } 1698 1699 pw.println("NetworkFactories for:"); 1700 pw.increaseIndent(); 1701 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 1702 pw.println(nfi.name); 1703 } 1704 pw.decreaseIndent(); 1705 pw.println(); 1706 1707 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 1708 pw.print("Active default network: "); 1709 if (defaultNai == null) { 1710 pw.println("none"); 1711 } else { 1712 pw.println(defaultNai.network.netId); 1713 } 1714 pw.println(); 1715 1716 pw.println("Current Networks:"); 1717 pw.increaseIndent(); 1718 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 1719 pw.println(nai.toString()); 1720 pw.increaseIndent(); 1721 pw.println("Requests:"); 1722 pw.increaseIndent(); 1723 for (int i = 0; i < nai.networkRequests.size(); i++) { 1724 pw.println(nai.networkRequests.valueAt(i).toString()); 1725 } 1726 pw.decreaseIndent(); 1727 pw.println("Lingered:"); 1728 pw.increaseIndent(); 1729 for (NetworkRequest nr : nai.networkLingered) pw.println(nr.toString()); 1730 pw.decreaseIndent(); 1731 pw.decreaseIndent(); 1732 } 1733 pw.decreaseIndent(); 1734 pw.println(); 1735 1736 pw.println("Network Requests:"); 1737 pw.increaseIndent(); 1738 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 1739 pw.println(nri.toString()); 1740 } 1741 pw.println(); 1742 pw.decreaseIndent(); 1743 1744 pw.print("mActiveDefaultNetwork: " + mActiveDefaultNetwork); 1745 if (mActiveDefaultNetwork != TYPE_NONE) { 1746 NetworkInfo activeNetworkInfo = getActiveNetworkInfo(); 1747 if (activeNetworkInfo != null) { 1748 pw.print(" " + activeNetworkInfo.getState() + 1749 "/" + activeNetworkInfo.getDetailedState()); 1750 } 1751 } 1752 pw.println(); 1753 1754 pw.println("mLegacyTypeTracker:"); 1755 pw.increaseIndent(); 1756 mLegacyTypeTracker.dump(pw); 1757 pw.decreaseIndent(); 1758 pw.println(); 1759 1760 synchronized (this) { 1761 pw.println("NetworkTransitionWakeLock is currently " + 1762 (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held."); 1763 pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy); 1764 } 1765 pw.println(); 1766 1767 mTethering.dump(fd, pw, args); 1768 1769 if (mInetLog != null) { 1770 pw.println(); 1771 pw.println("Inet condition reports:"); 1772 pw.increaseIndent(); 1773 for(int i = 0; i < mInetLog.size(); i++) { 1774 pw.println(mInetLog.get(i)); 1775 } 1776 pw.decreaseIndent(); 1777 } 1778 } 1779 1780 private boolean isLiveNetworkAgent(NetworkAgentInfo nai, String msg) { 1781 if (nai.network == null) return false; 1782 final NetworkAgentInfo officialNai; 1783 synchronized (mNetworkForNetId) { 1784 officialNai = mNetworkForNetId.get(nai.network.netId); 1785 } 1786 if (officialNai != null && officialNai.equals(nai)) return true; 1787 if (officialNai != null || VDBG) { 1788 loge(msg + " - isLiveNetworkAgent found mismatched netId: " + officialNai + 1789 " - " + nai); 1790 } 1791 return false; 1792 } 1793 1794 // must be stateless - things change under us. 1795 private class NetworkStateTrackerHandler extends Handler { 1796 public NetworkStateTrackerHandler(Looper looper) { 1797 super(looper); 1798 } 1799 1800 @Override 1801 public void handleMessage(Message msg) { 1802 NetworkInfo info; 1803 switch (msg.what) { 1804 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 1805 handleAsyncChannelHalfConnect(msg); 1806 break; 1807 } 1808 case AsyncChannel.CMD_CHANNEL_DISCONNECT: { 1809 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1810 if (nai != null) nai.asyncChannel.disconnect(); 1811 break; 1812 } 1813 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 1814 handleAsyncChannelDisconnected(msg); 1815 break; 1816 } 1817 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { 1818 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1819 if (nai == null) { 1820 loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); 1821 } else { 1822 updateCapabilities(nai, (NetworkCapabilities)msg.obj); 1823 } 1824 break; 1825 } 1826 case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { 1827 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1828 if (nai == null) { 1829 loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); 1830 } else { 1831 if (VDBG) { 1832 log("Update of LinkProperties for " + nai.name() + 1833 "; created=" + nai.created); 1834 } 1835 LinkProperties oldLp = nai.linkProperties; 1836 synchronized (nai) { 1837 nai.linkProperties = (LinkProperties)msg.obj; 1838 } 1839 if (nai.created) updateLinkProperties(nai, oldLp); 1840 } 1841 break; 1842 } 1843 case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { 1844 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1845 if (nai == null) { 1846 loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); 1847 break; 1848 } 1849 info = (NetworkInfo) msg.obj; 1850 updateNetworkInfo(nai, info); 1851 break; 1852 } 1853 case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { 1854 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1855 if (nai == null) { 1856 loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); 1857 break; 1858 } 1859 Integer score = (Integer) msg.obj; 1860 if (score != null) updateNetworkScore(nai, score.intValue()); 1861 break; 1862 } 1863 case NetworkAgent.EVENT_UID_RANGES_ADDED: { 1864 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1865 if (nai == null) { 1866 loge("EVENT_UID_RANGES_ADDED from unknown NetworkAgent"); 1867 break; 1868 } 1869 try { 1870 mNetd.addVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1871 } catch (Exception e) { 1872 // Never crash! 1873 loge("Exception in addVpnUidRanges: " + e); 1874 } 1875 break; 1876 } 1877 case NetworkAgent.EVENT_UID_RANGES_REMOVED: { 1878 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1879 if (nai == null) { 1880 loge("EVENT_UID_RANGES_REMOVED from unknown NetworkAgent"); 1881 break; 1882 } 1883 try { 1884 mNetd.removeVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1885 } catch (Exception e) { 1886 // Never crash! 1887 loge("Exception in removeVpnUidRanges: " + e); 1888 } 1889 break; 1890 } 1891 case NetworkAgent.EVENT_SET_EXPLICITLY_SELECTED: { 1892 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1893 if (nai == null) { 1894 loge("EVENT_SET_EXPLICITLY_SELECTED from unknown NetworkAgent"); 1895 break; 1896 } 1897 nai.networkMisc.explicitlySelected = true; 1898 break; 1899 } 1900 case NetworkMonitor.EVENT_NETWORK_TESTED: { 1901 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1902 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_VALIDATED")) { 1903 boolean valid = (msg.arg1 == NetworkMonitor.NETWORK_TEST_RESULT_VALID); 1904 if (valid) { 1905 if (DBG) log("Validated " + nai.name()); 1906 nai.validated = true; 1907 rematchNetworkAndRequests(nai); 1908 } 1909 updateInetCondition(nai, valid); 1910 // Let the NetworkAgent know the state of its network 1911 nai.asyncChannel.sendMessage( 1912 android.net.NetworkAgent.CMD_REPORT_NETWORK_STATUS, 1913 (valid ? NetworkAgent.VALID_NETWORK : NetworkAgent.INVALID_NETWORK), 1914 0, null); 1915 } 1916 break; 1917 } 1918 case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { 1919 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1920 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_LINGER_COMPLETE")) { 1921 handleLingerComplete(nai); 1922 } 1923 break; 1924 } 1925 case NetworkMonitor.EVENT_PROVISIONING_NOTIFICATION: { 1926 if (msg.arg1 == 0) { 1927 setProvNotificationVisibleIntent(false, msg.arg2, 0, null, null); 1928 } else { 1929 NetworkAgentInfo nai = null; 1930 synchronized (mNetworkForNetId) { 1931 nai = mNetworkForNetId.get(msg.arg2); 1932 } 1933 if (nai == null) { 1934 loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); 1935 break; 1936 } 1937 setProvNotificationVisibleIntent(true, msg.arg2, nai.networkInfo.getType(), 1938 nai.networkInfo.getExtraInfo(), (PendingIntent)msg.obj); 1939 } 1940 break; 1941 } 1942 case NetworkStateTracker.EVENT_STATE_CHANGED: { 1943 info = (NetworkInfo) msg.obj; 1944 NetworkInfo.State state = info.getState(); 1945 1946 if (VDBG || (state == NetworkInfo.State.CONNECTED) || 1947 (state == NetworkInfo.State.DISCONNECTED) || 1948 (state == NetworkInfo.State.SUSPENDED)) { 1949 log("ConnectivityChange for " + 1950 info.getTypeName() + ": " + 1951 state + "/" + info.getDetailedState()); 1952 } 1953 1954 // Since mobile has the notion of a network/apn that can be used for 1955 // provisioning we need to check every time we're connected as 1956 // CaptiveProtalTracker won't detected it because DCT doesn't report it 1957 // as connected as ACTION_ANY_DATA_CONNECTION_STATE_CHANGED instead its 1958 // reported as ACTION_DATA_CONNECTION_CONNECTED_TO_PROVISIONING_APN. Which 1959 // is received by MDST and sent here as EVENT_STATE_CHANGED. 1960 if (ConnectivityManager.isNetworkTypeMobile(info.getType()) 1961 && (0 != Settings.Global.getInt(mContext.getContentResolver(), 1962 Settings.Global.DEVICE_PROVISIONED, 0)) 1963 && (((state == NetworkInfo.State.CONNECTED) 1964 && (info.getType() == ConnectivityManager.TYPE_MOBILE)) 1965 || info.isConnectedToProvisioningNetwork())) { 1966 log("ConnectivityChange checkMobileProvisioning for" 1967 + " TYPE_MOBILE or ProvisioningNetwork"); 1968 checkMobileProvisioning(CheckMp.MAX_TIMEOUT_MS); 1969 } 1970 1971 EventLogTags.writeConnectivityStateChanged( 1972 info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); 1973 1974 if (info.isConnectedToProvisioningNetwork()) { 1975 /** 1976 * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING 1977 * for now its an in between network, its a network that 1978 * is actually a default network but we don't want it to be 1979 * announced as such to keep background applications from 1980 * trying to use it. It turns out that some still try so we 1981 * take the additional step of clearing any default routes 1982 * to the link that may have incorrectly setup by the lower 1983 * levels. 1984 */ 1985 LinkProperties lp = getLinkPropertiesForTypeInternal(info.getType()); 1986 if (DBG) { 1987 log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); 1988 } 1989 1990 // Clear any default routes setup by the radio so 1991 // any activity by applications trying to use this 1992 // connection will fail until the provisioning network 1993 // is enabled. 1994 /* 1995 for (RouteInfo r : lp.getRoutes()) { 1996 removeRoute(lp, r, TO_DEFAULT_TABLE, 1997 mNetTrackers[info.getType()].getNetwork().netId); 1998 } 1999 */ 2000 } else if (state == NetworkInfo.State.DISCONNECTED) { 2001 } else if (state == NetworkInfo.State.SUSPENDED) { 2002 } else if (state == NetworkInfo.State.CONNECTED) { 2003 // handleConnect(info); 2004 } 2005 if (mLockdownTracker != null) { 2006 mLockdownTracker.onNetworkInfoChanged(info); 2007 } 2008 break; 2009 } 2010 case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { 2011 info = (NetworkInfo) msg.obj; 2012 // TODO: Temporary allowing network configuration 2013 // change not resetting sockets. 2014 // @see bug/4455071 2015 /* 2016 handleConnectivityChange(info.getType(), mCurrentLinkProperties[info.getType()], 2017 false); 2018 */ 2019 break; 2020 } 2021 } 2022 } 2023 } 2024 2025 private void handleAsyncChannelHalfConnect(Message msg) { 2026 AsyncChannel ac = (AsyncChannel) msg.obj; 2027 if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { 2028 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2029 if (VDBG) log("NetworkFactory connected"); 2030 // A network factory has connected. Send it all current NetworkRequests. 2031 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 2032 if (nri.isRequest == false) continue; 2033 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2034 ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, 2035 (nai != null ? nai.getCurrentScore() : 0), 0, nri.request); 2036 } 2037 } else { 2038 loge("Error connecting NetworkFactory"); 2039 mNetworkFactoryInfos.remove(msg.obj); 2040 } 2041 } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { 2042 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2043 if (VDBG) log("NetworkAgent connected"); 2044 // A network agent has requested a connection. Establish the connection. 2045 mNetworkAgentInfos.get(msg.replyTo).asyncChannel. 2046 sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 2047 } else { 2048 loge("Error connecting NetworkAgent"); 2049 NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); 2050 if (nai != null) { 2051 synchronized (mNetworkForNetId) { 2052 mNetworkForNetId.remove(nai.network.netId); 2053 } 2054 // Just in case. 2055 mLegacyTypeTracker.remove(nai); 2056 } 2057 } 2058 } 2059 } 2060 private void handleAsyncChannelDisconnected(Message msg) { 2061 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 2062 if (nai != null) { 2063 if (DBG) { 2064 log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); 2065 } 2066 // A network agent has disconnected. 2067 if (nai.created) { 2068 // Tell netd to clean up the configuration for this network 2069 // (routing rules, DNS, etc). 2070 try { 2071 mNetd.removeNetwork(nai.network.netId); 2072 } catch (Exception e) { 2073 loge("Exception removing network: " + e); 2074 } 2075 } 2076 // TODO - if we move the logic to the network agent (have them disconnect 2077 // because they lost all their requests or because their score isn't good) 2078 // then they would disconnect organically, report their new state and then 2079 // disconnect the channel. 2080 if (nai.networkInfo.isConnected()) { 2081 nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, 2082 null, null); 2083 } 2084 if (isDefaultNetwork(nai)) { 2085 mDefaultInetConditionPublished = 0; 2086 } 2087 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); 2088 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); 2089 mNetworkAgentInfos.remove(msg.replyTo); 2090 updateClat(null, nai.linkProperties, nai); 2091 mLegacyTypeTracker.remove(nai); 2092 synchronized (mNetworkForNetId) { 2093 mNetworkForNetId.remove(nai.network.netId); 2094 } 2095 // Since we've lost the network, go through all the requests that 2096 // it was satisfying and see if any other factory can satisfy them. 2097 final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); 2098 for (int i = 0; i < nai.networkRequests.size(); i++) { 2099 NetworkRequest request = nai.networkRequests.valueAt(i); 2100 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); 2101 if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { 2102 if (DBG) { 2103 log("Checking for replacement network to handle request " + request ); 2104 } 2105 mNetworkForRequestId.remove(request.requestId); 2106 sendUpdatedScoreToFactories(request, 0); 2107 NetworkAgentInfo alternative = null; 2108 for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { 2109 NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); 2110 if (existing.networkInfo.isConnected() && 2111 request.networkCapabilities.satisfiedByNetworkCapabilities( 2112 existing.networkCapabilities) && 2113 (alternative == null || 2114 alternative.getCurrentScore() < existing.getCurrentScore())) { 2115 alternative = existing; 2116 } 2117 } 2118 if (alternative != null) { 2119 if (DBG) log(" found replacement in " + alternative.name()); 2120 if (!toActivate.contains(alternative)) { 2121 toActivate.add(alternative); 2122 } 2123 } 2124 } 2125 } 2126 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 2127 removeDataActivityTracking(nai); 2128 mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; 2129 requestNetworkTransitionWakelock(nai.name()); 2130 } 2131 for (NetworkAgentInfo networkToActivate : toActivate) { 2132 networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2133 } 2134 } 2135 } 2136 2137 private void handleRegisterNetworkRequest(Message msg) { 2138 final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); 2139 final NetworkCapabilities newCap = nri.request.networkCapabilities; 2140 int score = 0; 2141 2142 // Check for the best currently alive network that satisfies this request 2143 NetworkAgentInfo bestNetwork = null; 2144 for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { 2145 if (DBG) log("handleRegisterNetworkRequest checking " + network.name()); 2146 if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { 2147 if (DBG) log("apparently satisfied. currentScore=" + network.getCurrentScore()); 2148 if ((bestNetwork == null) || 2149 bestNetwork.getCurrentScore() < network.getCurrentScore()) { 2150 if (!nri.isRequest) { 2151 // Not setting bestNetwork here as a listening NetworkRequest may be 2152 // satisfied by multiple Networks. Instead the request is added to 2153 // each satisfying Network and notified about each. 2154 network.addRequest(nri.request); 2155 notifyNetworkCallback(network, nri); 2156 } else { 2157 bestNetwork = network; 2158 } 2159 } 2160 } 2161 } 2162 if (bestNetwork != null) { 2163 if (DBG) log("using " + bestNetwork.name()); 2164 if (bestNetwork.networkInfo.isConnected()) { 2165 // Cancel any lingering so the linger timeout doesn't teardown this network 2166 // even though we have a request for it. 2167 bestNetwork.networkLingered.clear(); 2168 bestNetwork.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2169 } 2170 bestNetwork.addRequest(nri.request); 2171 mNetworkForRequestId.put(nri.request.requestId, bestNetwork); 2172 notifyNetworkCallback(bestNetwork, nri); 2173 score = bestNetwork.getCurrentScore(); 2174 if (nri.request.legacyType != TYPE_NONE) { 2175 mLegacyTypeTracker.add(nri.request.legacyType, bestNetwork); 2176 } 2177 } 2178 mNetworkRequests.put(nri.request, nri); 2179 if (nri.isRequest) { 2180 if (DBG) log("sending new NetworkRequest to factories"); 2181 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2182 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 2183 0, nri.request); 2184 } 2185 } 2186 } 2187 2188 private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) { 2189 NetworkRequestInfo nri = mNetworkRequests.get(request); 2190 if (nri != null) { 2191 if (Process.SYSTEM_UID != callingUid && nri.mUid != callingUid) { 2192 if (DBG) log("Attempt to release unowned NetworkRequest " + request); 2193 return; 2194 } 2195 if (DBG) log("releasing NetworkRequest " + request); 2196 nri.unlinkDeathRecipient(); 2197 mNetworkRequests.remove(request); 2198 if (nri.isRequest) { 2199 // Find all networks that are satisfying this request and remove the request 2200 // from their request lists. 2201 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2202 if (nai.networkRequests.get(nri.request.requestId) != null) { 2203 nai.networkRequests.remove(nri.request.requestId); 2204 if (DBG) { 2205 log(" Removing from current network " + nai.name() + 2206 ", leaving " + nai.networkRequests.size() + 2207 " requests."); 2208 } 2209 // check if has any requests remaining and if not, 2210 // disconnect (unless it's a VPN). 2211 boolean keep = nai.isVPN(); 2212 for (int i = 0; i < nai.networkRequests.size() && !keep; i++) { 2213 NetworkRequest r = nai.networkRequests.valueAt(i); 2214 if (mNetworkRequests.get(r).isRequest) keep = true; 2215 } 2216 if (!keep) { 2217 if (DBG) log("no live requests for " + nai.name() + "; disconnecting"); 2218 nai.asyncChannel.disconnect(); 2219 } 2220 } 2221 } 2222 2223 // Maintain the illusion. When this request arrived, we might have preteneded 2224 // that a network connected to serve it, even though the network was already 2225 // connected. Now that this request has gone away, we might have to pretend 2226 // that the network disconnected. LegacyTypeTracker will generate that 2227 // phatom disconnect for this type. 2228 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2229 if (nai != null) { 2230 mNetworkForRequestId.remove(nri.request.requestId); 2231 if (nri.request.legacyType != TYPE_NONE) { 2232 mLegacyTypeTracker.remove(nri.request.legacyType, nai); 2233 } 2234 } 2235 2236 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2237 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 2238 nri.request); 2239 } 2240 } else { 2241 // listens don't have a singular affectedNetwork. Check all networks to see 2242 // if this listen request applies and remove it. 2243 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2244 nai.networkRequests.remove(nri.request.requestId); 2245 } 2246 } 2247 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 2248 } 2249 } 2250 2251 private class InternalHandler extends Handler { 2252 public InternalHandler(Looper looper) { 2253 super(looper); 2254 } 2255 2256 @Override 2257 public void handleMessage(Message msg) { 2258 NetworkInfo info; 2259 switch (msg.what) { 2260 case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: 2261 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 2262 String causedBy = null; 2263 synchronized (ConnectivityService.this) { 2264 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 2265 mNetTransitionWakeLock.isHeld()) { 2266 mNetTransitionWakeLock.release(); 2267 causedBy = mNetTransitionWakeLockCausedBy; 2268 } else { 2269 break; 2270 } 2271 } 2272 if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { 2273 log("Failed to find a new network - expiring NetTransition Wakelock"); 2274 } else { 2275 log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + 2276 " cleared because we found a replacement network"); 2277 } 2278 break; 2279 } 2280 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 2281 handleDeprecatedGlobalHttpProxy(); 2282 break; 2283 } 2284 case EVENT_SET_DEPENDENCY_MET: { 2285 boolean met = (msg.arg1 == ENABLED); 2286 handleSetDependencyMet(msg.arg2, met); 2287 break; 2288 } 2289 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 2290 Intent intent = (Intent)msg.obj; 2291 sendStickyBroadcast(intent); 2292 break; 2293 } 2294 case EVENT_SET_POLICY_DATA_ENABLE: { 2295 final int networkType = msg.arg1; 2296 final boolean enabled = msg.arg2 == ENABLED; 2297 handleSetPolicyDataEnable(networkType, enabled); 2298 break; 2299 } 2300 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 2301 int tag = mEnableFailFastMobileDataTag.get(); 2302 if (msg.arg1 == tag) { 2303 MobileDataStateTracker mobileDst = 2304 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2305 if (mobileDst != null) { 2306 mobileDst.setEnableFailFastMobileData(msg.arg2); 2307 } 2308 } else { 2309 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 2310 + " != tag:" + tag); 2311 } 2312 break; 2313 } 2314 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 2315 handleNetworkSamplingTimeout(); 2316 break; 2317 } 2318 case EVENT_PROXY_HAS_CHANGED: { 2319 handleApplyDefaultProxy((ProxyInfo)msg.obj); 2320 break; 2321 } 2322 case EVENT_REGISTER_NETWORK_FACTORY: { 2323 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 2324 break; 2325 } 2326 case EVENT_UNREGISTER_NETWORK_FACTORY: { 2327 handleUnregisterNetworkFactory((Messenger)msg.obj); 2328 break; 2329 } 2330 case EVENT_REGISTER_NETWORK_AGENT: { 2331 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 2332 break; 2333 } 2334 case EVENT_REGISTER_NETWORK_REQUEST: 2335 case EVENT_REGISTER_NETWORK_LISTENER: { 2336 handleRegisterNetworkRequest(msg); 2337 break; 2338 } 2339 case EVENT_RELEASE_NETWORK_REQUEST: { 2340 handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); 2341 break; 2342 } 2343 case EVENT_SYSTEM_READY: { 2344 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2345 nai.networkMonitor.systemReady = true; 2346 } 2347 break; 2348 } 2349 } 2350 } 2351 } 2352 2353 // javadoc from interface 2354 public int tether(String iface) { 2355 ConnectivityManager.enforceTetherChangePermission(mContext); 2356 if (isTetheringSupported()) { 2357 return mTethering.tether(iface); 2358 } else { 2359 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2360 } 2361 } 2362 2363 // javadoc from interface 2364 public int untether(String iface) { 2365 ConnectivityManager.enforceTetherChangePermission(mContext); 2366 2367 if (isTetheringSupported()) { 2368 return mTethering.untether(iface); 2369 } else { 2370 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2371 } 2372 } 2373 2374 // javadoc from interface 2375 public int getLastTetherError(String iface) { 2376 enforceTetherAccessPermission(); 2377 2378 if (isTetheringSupported()) { 2379 return mTethering.getLastTetherError(iface); 2380 } else { 2381 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2382 } 2383 } 2384 2385 // TODO - proper iface API for selection by property, inspection, etc 2386 public String[] getTetherableUsbRegexs() { 2387 enforceTetherAccessPermission(); 2388 if (isTetheringSupported()) { 2389 return mTethering.getTetherableUsbRegexs(); 2390 } else { 2391 return new String[0]; 2392 } 2393 } 2394 2395 public String[] getTetherableWifiRegexs() { 2396 enforceTetherAccessPermission(); 2397 if (isTetheringSupported()) { 2398 return mTethering.getTetherableWifiRegexs(); 2399 } else { 2400 return new String[0]; 2401 } 2402 } 2403 2404 public String[] getTetherableBluetoothRegexs() { 2405 enforceTetherAccessPermission(); 2406 if (isTetheringSupported()) { 2407 return mTethering.getTetherableBluetoothRegexs(); 2408 } else { 2409 return new String[0]; 2410 } 2411 } 2412 2413 public int setUsbTethering(boolean enable) { 2414 ConnectivityManager.enforceTetherChangePermission(mContext); 2415 if (isTetheringSupported()) { 2416 return mTethering.setUsbTethering(enable); 2417 } else { 2418 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2419 } 2420 } 2421 2422 // TODO - move iface listing, queries, etc to new module 2423 // javadoc from interface 2424 public String[] getTetherableIfaces() { 2425 enforceTetherAccessPermission(); 2426 return mTethering.getTetherableIfaces(); 2427 } 2428 2429 public String[] getTetheredIfaces() { 2430 enforceTetherAccessPermission(); 2431 return mTethering.getTetheredIfaces(); 2432 } 2433 2434 public String[] getTetheringErroredIfaces() { 2435 enforceTetherAccessPermission(); 2436 return mTethering.getErroredIfaces(); 2437 } 2438 2439 public String[] getTetheredDhcpRanges() { 2440 enforceConnectivityInternalPermission(); 2441 return mTethering.getTetheredDhcpRanges(); 2442 } 2443 2444 // if ro.tether.denied = true we default to no tethering 2445 // gservices could set the secure setting to 1 though to enable it on a build where it 2446 // had previously been turned off. 2447 public boolean isTetheringSupported() { 2448 enforceTetherAccessPermission(); 2449 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 2450 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 2451 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0) 2452 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); 2453 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 2454 mTethering.getTetherableWifiRegexs().length != 0 || 2455 mTethering.getTetherableBluetoothRegexs().length != 0) && 2456 mTethering.getUpstreamIfaceTypes().length != 0); 2457 } 2458 2459 // Called when we lose the default network and have no replacement yet. 2460 // This will automatically be cleared after X seconds or a new default network 2461 // becomes CONNECTED, whichever happens first. The timer is started by the 2462 // first caller and not restarted by subsequent callers. 2463 private void requestNetworkTransitionWakelock(String forWhom) { 2464 int serialNum = 0; 2465 synchronized (this) { 2466 if (mNetTransitionWakeLock.isHeld()) return; 2467 serialNum = ++mNetTransitionWakeLockSerialNumber; 2468 mNetTransitionWakeLock.acquire(); 2469 mNetTransitionWakeLockCausedBy = forWhom; 2470 } 2471 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2472 EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), 2473 mNetTransitionWakeLockTimeout); 2474 return; 2475 } 2476 2477 // 100 percent is full good, 0 is full bad. 2478 public void reportInetCondition(int networkType, int percentage) { 2479 if (percentage > 50) return; // don't handle good network reports 2480 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 2481 if (nai != null) reportBadNetwork(nai.network); 2482 } 2483 2484 public void reportBadNetwork(Network network) { 2485 enforceAccessPermission(); 2486 enforceInternetPermission(); 2487 2488 if (network == null) return; 2489 2490 final int uid = Binder.getCallingUid(); 2491 NetworkAgentInfo nai = null; 2492 synchronized (mNetworkForNetId) { 2493 nai = mNetworkForNetId.get(network.netId); 2494 } 2495 if (nai == null) return; 2496 if (DBG) log("reportBadNetwork(" + nai.name() + ") by " + uid); 2497 synchronized (nai) { 2498 if (isNetworkBlocked(nai, uid)) return; 2499 2500 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_FORCE_REEVALUATION, uid); 2501 } 2502 } 2503 2504 public ProxyInfo getProxy() { 2505 // this information is already available as a world read/writable jvm property 2506 // so this API change wouldn't have a benifit. It also breaks the passing 2507 // of proxy info to all the JVMs. 2508 // enforceAccessPermission(); 2509 synchronized (mProxyLock) { 2510 ProxyInfo ret = mGlobalProxy; 2511 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 2512 return ret; 2513 } 2514 } 2515 2516 public void setGlobalProxy(ProxyInfo proxyProperties) { 2517 enforceConnectivityInternalPermission(); 2518 2519 synchronized (mProxyLock) { 2520 if (proxyProperties == mGlobalProxy) return; 2521 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 2522 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 2523 2524 String host = ""; 2525 int port = 0; 2526 String exclList = ""; 2527 String pacFileUrl = ""; 2528 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 2529 (proxyProperties.getPacFileUrl() != null))) { 2530 if (!proxyProperties.isValid()) { 2531 if (DBG) 2532 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2533 return; 2534 } 2535 mGlobalProxy = new ProxyInfo(proxyProperties); 2536 host = mGlobalProxy.getHost(); 2537 port = mGlobalProxy.getPort(); 2538 exclList = mGlobalProxy.getExclusionListAsString(); 2539 if (proxyProperties.getPacFileUrl() != null) { 2540 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 2541 } 2542 } else { 2543 mGlobalProxy = null; 2544 } 2545 ContentResolver res = mContext.getContentResolver(); 2546 final long token = Binder.clearCallingIdentity(); 2547 try { 2548 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 2549 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 2550 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 2551 exclList); 2552 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 2553 } finally { 2554 Binder.restoreCallingIdentity(token); 2555 } 2556 } 2557 2558 if (mGlobalProxy == null) { 2559 proxyProperties = mDefaultProxy; 2560 } 2561 sendProxyBroadcast(proxyProperties); 2562 } 2563 2564 private void loadGlobalProxy() { 2565 ContentResolver res = mContext.getContentResolver(); 2566 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 2567 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 2568 String exclList = Settings.Global.getString(res, 2569 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 2570 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 2571 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 2572 ProxyInfo proxyProperties; 2573 if (!TextUtils.isEmpty(pacFileUrl)) { 2574 proxyProperties = new ProxyInfo(pacFileUrl); 2575 } else { 2576 proxyProperties = new ProxyInfo(host, port, exclList); 2577 } 2578 if (!proxyProperties.isValid()) { 2579 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2580 return; 2581 } 2582 2583 synchronized (mProxyLock) { 2584 mGlobalProxy = proxyProperties; 2585 } 2586 } 2587 } 2588 2589 public ProxyInfo getGlobalProxy() { 2590 // this information is already available as a world read/writable jvm property 2591 // so this API change wouldn't have a benifit. It also breaks the passing 2592 // of proxy info to all the JVMs. 2593 // enforceAccessPermission(); 2594 synchronized (mProxyLock) { 2595 return mGlobalProxy; 2596 } 2597 } 2598 2599 private void handleApplyDefaultProxy(ProxyInfo proxy) { 2600 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 2601 && (proxy.getPacFileUrl() == null)) { 2602 proxy = null; 2603 } 2604 synchronized (mProxyLock) { 2605 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 2606 if (mDefaultProxy == proxy) return; // catches repeated nulls 2607 if (proxy != null && !proxy.isValid()) { 2608 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 2609 return; 2610 } 2611 2612 // This call could be coming from the PacManager, containing the port of the local 2613 // proxy. If this new proxy matches the global proxy then copy this proxy to the 2614 // global (to get the correct local port), and send a broadcast. 2615 // TODO: Switch PacManager to have its own message to send back rather than 2616 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 2617 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 2618 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 2619 mGlobalProxy = proxy; 2620 sendProxyBroadcast(mGlobalProxy); 2621 return; 2622 } 2623 mDefaultProxy = proxy; 2624 2625 if (mGlobalProxy != null) return; 2626 if (!mDefaultProxyDisabled) { 2627 sendProxyBroadcast(proxy); 2628 } 2629 } 2630 } 2631 2632 private void handleDeprecatedGlobalHttpProxy() { 2633 String proxy = Settings.Global.getString(mContext.getContentResolver(), 2634 Settings.Global.HTTP_PROXY); 2635 if (!TextUtils.isEmpty(proxy)) { 2636 String data[] = proxy.split(":"); 2637 if (data.length == 0) { 2638 return; 2639 } 2640 2641 String proxyHost = data[0]; 2642 int proxyPort = 8080; 2643 if (data.length > 1) { 2644 try { 2645 proxyPort = Integer.parseInt(data[1]); 2646 } catch (NumberFormatException e) { 2647 return; 2648 } 2649 } 2650 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 2651 setGlobalProxy(p); 2652 } 2653 } 2654 2655 private void sendProxyBroadcast(ProxyInfo proxy) { 2656 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 2657 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 2658 if (DBG) log("sending Proxy Broadcast for " + proxy); 2659 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 2660 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 2661 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2662 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 2663 final long ident = Binder.clearCallingIdentity(); 2664 try { 2665 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2666 } finally { 2667 Binder.restoreCallingIdentity(ident); 2668 } 2669 } 2670 2671 private static class SettingsObserver extends ContentObserver { 2672 private int mWhat; 2673 private Handler mHandler; 2674 SettingsObserver(Handler handler, int what) { 2675 super(handler); 2676 mHandler = handler; 2677 mWhat = what; 2678 } 2679 2680 void observe(Context context) { 2681 ContentResolver resolver = context.getContentResolver(); 2682 resolver.registerContentObserver(Settings.Global.getUriFor( 2683 Settings.Global.HTTP_PROXY), false, this); 2684 } 2685 2686 @Override 2687 public void onChange(boolean selfChange) { 2688 mHandler.obtainMessage(mWhat).sendToTarget(); 2689 } 2690 } 2691 2692 private static void log(String s) { 2693 Slog.d(TAG, s); 2694 } 2695 2696 private static void loge(String s) { 2697 Slog.e(TAG, s); 2698 } 2699 2700 int convertFeatureToNetworkType(int networkType, String feature) { 2701 int usedNetworkType = networkType; 2702 2703 if(networkType == ConnectivityManager.TYPE_MOBILE) { 2704 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 2705 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 2706 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 2707 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 2708 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 2709 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 2710 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 2711 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 2712 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 2713 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 2714 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 2715 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 2716 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 2717 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 2718 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 2719 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { 2720 usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; 2721 } else { 2722 Slog.e(TAG, "Can't match any mobile netTracker!"); 2723 } 2724 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 2725 if (TextUtils.equals(feature, "p2p")) { 2726 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 2727 } else { 2728 Slog.e(TAG, "Can't match any wifi netTracker!"); 2729 } 2730 } else { 2731 Slog.e(TAG, "Unexpected network type"); 2732 } 2733 return usedNetworkType; 2734 } 2735 2736 private static <T> T checkNotNull(T value, String message) { 2737 if (value == null) { 2738 throw new NullPointerException(message); 2739 } 2740 return value; 2741 } 2742 2743 /** 2744 * Prepare for a VPN application. This method is used by VpnDialogs 2745 * and not available in ConnectivityManager. Permissions are checked 2746 * in Vpn class. 2747 * @hide 2748 */ 2749 @Override 2750 public boolean prepareVpn(String oldPackage, String newPackage) { 2751 throwIfLockdownEnabled(); 2752 int user = UserHandle.getUserId(Binder.getCallingUid()); 2753 synchronized(mVpns) { 2754 return mVpns.get(user).prepare(oldPackage, newPackage); 2755 } 2756 } 2757 2758 /** 2759 * Set whether the current VPN package has the ability to launch VPNs without 2760 * user intervention. This method is used by system UIs and not available 2761 * in ConnectivityManager. Permissions are checked in Vpn class. 2762 * @hide 2763 */ 2764 @Override 2765 public void setVpnPackageAuthorization(boolean authorized) { 2766 int user = UserHandle.getUserId(Binder.getCallingUid()); 2767 synchronized(mVpns) { 2768 mVpns.get(user).setPackageAuthorization(authorized); 2769 } 2770 } 2771 2772 /** 2773 * Configure a TUN interface and return its file descriptor. Parameters 2774 * are encoded and opaque to this class. This method is used by VpnBuilder 2775 * and not available in ConnectivityManager. Permissions are checked in 2776 * Vpn class. 2777 * @hide 2778 */ 2779 @Override 2780 public ParcelFileDescriptor establishVpn(VpnConfig config) { 2781 throwIfLockdownEnabled(); 2782 int user = UserHandle.getUserId(Binder.getCallingUid()); 2783 synchronized(mVpns) { 2784 return mVpns.get(user).establish(config); 2785 } 2786 } 2787 2788 /** 2789 * Start legacy VPN, controlling native daemons as needed. Creates a 2790 * secondary thread to perform connection work, returning quickly. 2791 */ 2792 @Override 2793 public void startLegacyVpn(VpnProfile profile) { 2794 throwIfLockdownEnabled(); 2795 final LinkProperties egress = getActiveLinkProperties(); 2796 if (egress == null) { 2797 throw new IllegalStateException("Missing active network connection"); 2798 } 2799 int user = UserHandle.getUserId(Binder.getCallingUid()); 2800 synchronized(mVpns) { 2801 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 2802 } 2803 } 2804 2805 /** 2806 * Return the information of the ongoing legacy VPN. This method is used 2807 * by VpnSettings and not available in ConnectivityManager. Permissions 2808 * are checked in Vpn class. 2809 * @hide 2810 */ 2811 @Override 2812 public LegacyVpnInfo getLegacyVpnInfo() { 2813 throwIfLockdownEnabled(); 2814 int user = UserHandle.getUserId(Binder.getCallingUid()); 2815 synchronized(mVpns) { 2816 return mVpns.get(user).getLegacyVpnInfo(); 2817 } 2818 } 2819 2820 /** 2821 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 2822 * not available in ConnectivityManager. 2823 * Permissions are checked in Vpn class. 2824 * @hide 2825 */ 2826 @Override 2827 public VpnConfig getVpnConfig() { 2828 int user = UserHandle.getUserId(Binder.getCallingUid()); 2829 synchronized(mVpns) { 2830 return mVpns.get(user).getVpnConfig(); 2831 } 2832 } 2833 2834 @Override 2835 public boolean updateLockdownVpn() { 2836 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 2837 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 2838 return false; 2839 } 2840 2841 // Tear down existing lockdown if profile was removed 2842 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 2843 if (mLockdownEnabled) { 2844 if (!mKeyStore.isUnlocked()) { 2845 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 2846 return false; 2847 } 2848 2849 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 2850 final VpnProfile profile = VpnProfile.decode( 2851 profileName, mKeyStore.get(Credentials.VPN + profileName)); 2852 int user = UserHandle.getUserId(Binder.getCallingUid()); 2853 synchronized(mVpns) { 2854 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 2855 profile)); 2856 } 2857 } else { 2858 setLockdownTracker(null); 2859 } 2860 2861 return true; 2862 } 2863 2864 /** 2865 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 2866 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 2867 */ 2868 private void setLockdownTracker(LockdownVpnTracker tracker) { 2869 // Shutdown any existing tracker 2870 final LockdownVpnTracker existing = mLockdownTracker; 2871 mLockdownTracker = null; 2872 if (existing != null) { 2873 existing.shutdown(); 2874 } 2875 2876 try { 2877 if (tracker != null) { 2878 mNetd.setFirewallEnabled(true); 2879 mNetd.setFirewallInterfaceRule("lo", true); 2880 mLockdownTracker = tracker; 2881 mLockdownTracker.init(); 2882 } else { 2883 mNetd.setFirewallEnabled(false); 2884 } 2885 } catch (RemoteException e) { 2886 // ignored; NMS lives inside system_server 2887 } 2888 } 2889 2890 private void throwIfLockdownEnabled() { 2891 if (mLockdownEnabled) { 2892 throw new IllegalStateException("Unavailable in lockdown mode"); 2893 } 2894 } 2895 2896 public void supplyMessenger(int networkType, Messenger messenger) { 2897 enforceConnectivityInternalPermission(); 2898 2899 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 2900 mNetTrackers[networkType].supplyMessenger(messenger); 2901 } 2902 } 2903 2904 public int findConnectionTypeForIface(String iface) { 2905 enforceConnectivityInternalPermission(); 2906 2907 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 2908 2909 synchronized(mNetworkForNetId) { 2910 for (int i = 0; i < mNetworkForNetId.size(); i++) { 2911 NetworkAgentInfo nai = mNetworkForNetId.valueAt(i); 2912 LinkProperties lp = nai.linkProperties; 2913 if (lp != null && iface.equals(lp.getInterfaceName()) && nai.networkInfo != null) { 2914 return nai.networkInfo.getType(); 2915 } 2916 } 2917 } 2918 return ConnectivityManager.TYPE_NONE; 2919 } 2920 2921 /** 2922 * Have mobile data fail fast if enabled. 2923 * 2924 * @param enabled DctConstants.ENABLED/DISABLED 2925 */ 2926 private void setEnableFailFastMobileData(int enabled) { 2927 int tag; 2928 2929 if (enabled == DctConstants.ENABLED) { 2930 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 2931 } else { 2932 tag = mEnableFailFastMobileDataTag.get(); 2933 } 2934 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 2935 enabled)); 2936 } 2937 2938 private boolean isMobileDataStateTrackerReady() { 2939 MobileDataStateTracker mdst = 2940 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 2941 return (mdst != null) && (mdst.isReady()); 2942 } 2943 2944 /** 2945 * The ResultReceiver resultCode for checkMobileProvisioning (CMP_RESULT_CODE) 2946 */ 2947 2948 /** 2949 * No connection was possible to the network. 2950 * This is NOT a warm sim. 2951 */ 2952 private static final int CMP_RESULT_CODE_NO_CONNECTION = 0; 2953 2954 /** 2955 * A connection was made to the internet, all is well. 2956 * This is NOT a warm sim. 2957 */ 2958 private static final int CMP_RESULT_CODE_CONNECTABLE = 1; 2959 2960 /** 2961 * A connection was made but no dns server was available to resolve a name to address. 2962 * This is NOT a warm sim since provisioning network is supported. 2963 */ 2964 private static final int CMP_RESULT_CODE_NO_DNS = 2; 2965 2966 /** 2967 * A connection was made but could not open a TCP connection. 2968 * This is NOT a warm sim since provisioning network is supported. 2969 */ 2970 private static final int CMP_RESULT_CODE_NO_TCP_CONNECTION = 3; 2971 2972 /** 2973 * A connection was made but there was a redirection, we appear to be in walled garden. 2974 * This is an indication of a warm sim on a mobile network such as T-Mobile. 2975 */ 2976 private static final int CMP_RESULT_CODE_REDIRECTED = 4; 2977 2978 /** 2979 * The mobile network is a provisioning network. 2980 * This is an indication of a warm sim on a mobile network such as AT&T. 2981 */ 2982 private static final int CMP_RESULT_CODE_PROVISIONING_NETWORK = 5; 2983 2984 /** 2985 * The mobile network is provisioning 2986 */ 2987 private static final int CMP_RESULT_CODE_IS_PROVISIONING = 6; 2988 2989 private AtomicBoolean mIsProvisioningNetwork = new AtomicBoolean(false); 2990 private AtomicBoolean mIsStartingProvisioning = new AtomicBoolean(false); 2991 2992 private AtomicBoolean mIsCheckingMobileProvisioning = new AtomicBoolean(false); 2993 2994 @Override 2995 public int checkMobileProvisioning(int suggestedTimeOutMs) { 2996 int timeOutMs = -1; 2997 if (DBG) log("checkMobileProvisioning: E suggestedTimeOutMs=" + suggestedTimeOutMs); 2998 enforceConnectivityInternalPermission(); 2999 3000 final long token = Binder.clearCallingIdentity(); 3001 try { 3002 timeOutMs = suggestedTimeOutMs; 3003 if (suggestedTimeOutMs > CheckMp.MAX_TIMEOUT_MS) { 3004 timeOutMs = CheckMp.MAX_TIMEOUT_MS; 3005 } 3006 3007 // Check that mobile networks are supported 3008 if (!isNetworkSupported(ConnectivityManager.TYPE_MOBILE) 3009 || !isNetworkSupported(ConnectivityManager.TYPE_MOBILE_HIPRI)) { 3010 if (DBG) log("checkMobileProvisioning: X no mobile network"); 3011 return timeOutMs; 3012 } 3013 3014 // If we're already checking don't do it again 3015 // TODO: Add a queue of results... 3016 if (mIsCheckingMobileProvisioning.getAndSet(true)) { 3017 if (DBG) log("checkMobileProvisioning: X already checking ignore for the moment"); 3018 return timeOutMs; 3019 } 3020 3021 // Start off with mobile notification off 3022 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3023 3024 CheckMp checkMp = new CheckMp(mContext, this); 3025 CheckMp.CallBack cb = new CheckMp.CallBack() { 3026 @Override 3027 void onComplete(Integer result) { 3028 if (DBG) log("CheckMp.onComplete: result=" + result); 3029 NetworkInfo ni = 3030 mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI].getNetworkInfo(); 3031 switch(result) { 3032 case CMP_RESULT_CODE_CONNECTABLE: 3033 case CMP_RESULT_CODE_NO_CONNECTION: 3034 case CMP_RESULT_CODE_NO_DNS: 3035 case CMP_RESULT_CODE_NO_TCP_CONNECTION: { 3036 if (DBG) log("CheckMp.onComplete: ignore, connected or no connection"); 3037 break; 3038 } 3039 case CMP_RESULT_CODE_REDIRECTED: { 3040 if (DBG) log("CheckMp.onComplete: warm sim"); 3041 String url = getMobileProvisioningUrl(); 3042 if (TextUtils.isEmpty(url)) { 3043 url = getMobileRedirectedProvisioningUrl(); 3044 } 3045 if (TextUtils.isEmpty(url) == false) { 3046 if (DBG) log("CheckMp.onComplete: warm (redirected), url=" + url); 3047 setProvNotificationVisible(true, 3048 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 3049 url); 3050 } else { 3051 if (DBG) log("CheckMp.onComplete: warm (redirected), no url"); 3052 } 3053 break; 3054 } 3055 case CMP_RESULT_CODE_PROVISIONING_NETWORK: { 3056 String url = getMobileProvisioningUrl(); 3057 if (TextUtils.isEmpty(url) == false) { 3058 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), url=" + url); 3059 setProvNotificationVisible(true, 3060 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 3061 url); 3062 // Mark that we've got a provisioning network and 3063 // Disable Mobile Data until user actually starts provisioning. 3064 mIsProvisioningNetwork.set(true); 3065 MobileDataStateTracker mdst = (MobileDataStateTracker) 3066 mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3067 3068 // Disable radio until user starts provisioning 3069 mdst.setRadio(false); 3070 } else { 3071 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), no url"); 3072 } 3073 break; 3074 } 3075 case CMP_RESULT_CODE_IS_PROVISIONING: { 3076 // FIXME: Need to know when provisioning is done. Probably we can 3077 // check the completion status if successful we're done if we 3078 // "timedout" or still connected to provisioning APN turn off data? 3079 if (DBG) log("CheckMp.onComplete: provisioning started"); 3080 mIsStartingProvisioning.set(false); 3081 break; 3082 } 3083 default: { 3084 loge("CheckMp.onComplete: ignore unexpected result=" + result); 3085 break; 3086 } 3087 } 3088 mIsCheckingMobileProvisioning.set(false); 3089 } 3090 }; 3091 CheckMp.Params params = 3092 new CheckMp.Params(checkMp.getDefaultUrl(), timeOutMs, cb); 3093 if (DBG) log("checkMobileProvisioning: params=" + params); 3094 // TODO: Reenable when calls to the now defunct 3095 // MobileDataStateTracker.isProvisioningNetwork() are removed. 3096 // This code should be moved to the Telephony code. 3097 // checkMp.execute(params); 3098 } finally { 3099 Binder.restoreCallingIdentity(token); 3100 if (DBG) log("checkMobileProvisioning: X"); 3101 } 3102 return timeOutMs; 3103 } 3104 3105 static class CheckMp extends 3106 AsyncTask<CheckMp.Params, Void, Integer> { 3107 private static final String CHECKMP_TAG = "CheckMp"; 3108 3109 // adb shell setprop persist.checkmp.testfailures 1 to enable testing failures 3110 private static boolean mTestingFailures; 3111 3112 // Choosing 4 loops as half of them will use HTTPS and the other half HTTP 3113 private static final int MAX_LOOPS = 4; 3114 3115 // Number of milli-seconds to complete all of the retires 3116 public static final int MAX_TIMEOUT_MS = 60000; 3117 3118 // The socket should retry only 5 seconds, the default is longer 3119 private static final int SOCKET_TIMEOUT_MS = 5000; 3120 3121 // Sleep time for network errors 3122 private static final int NET_ERROR_SLEEP_SEC = 3; 3123 3124 // Sleep time for network route establishment 3125 private static final int NET_ROUTE_ESTABLISHMENT_SLEEP_SEC = 3; 3126 3127 // Short sleep time for polling :( 3128 private static final int POLLING_SLEEP_SEC = 1; 3129 3130 private Context mContext; 3131 private ConnectivityService mCs; 3132 private TelephonyManager mTm; 3133 private Params mParams; 3134 3135 /** 3136 * Parameters for AsyncTask.execute 3137 */ 3138 static class Params { 3139 private String mUrl; 3140 private long mTimeOutMs; 3141 private CallBack mCb; 3142 3143 Params(String url, long timeOutMs, CallBack cb) { 3144 mUrl = url; 3145 mTimeOutMs = timeOutMs; 3146 mCb = cb; 3147 } 3148 3149 @Override 3150 public String toString() { 3151 return "{" + " url=" + mUrl + " mTimeOutMs=" + mTimeOutMs + " mCb=" + mCb + "}"; 3152 } 3153 } 3154 3155 // As explained to me by Brian Carlstrom and Kenny Root, Certificates can be 3156 // issued by name or ip address, for Google its by name so when we construct 3157 // this HostnameVerifier we'll pass the original Uri and use it to verify 3158 // the host. If the host name in the original uril fails we'll test the 3159 // hostname parameter just incase things change. 3160 static class CheckMpHostnameVerifier implements HostnameVerifier { 3161 Uri mOrgUri; 3162 3163 CheckMpHostnameVerifier(Uri orgUri) { 3164 mOrgUri = orgUri; 3165 } 3166 3167 @Override 3168 public boolean verify(String hostname, SSLSession session) { 3169 HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier(); 3170 String orgUriHost = mOrgUri.getHost(); 3171 boolean retVal = hv.verify(orgUriHost, session) || hv.verify(hostname, session); 3172 if (DBG) { 3173 log("isMobileOk: hostnameVerify retVal=" + retVal + " hostname=" + hostname 3174 + " orgUriHost=" + orgUriHost); 3175 } 3176 return retVal; 3177 } 3178 } 3179 3180 /** 3181 * The call back object passed in Params. onComplete will be called 3182 * on the main thread. 3183 */ 3184 abstract static class CallBack { 3185 // Called on the main thread. 3186 abstract void onComplete(Integer result); 3187 } 3188 3189 public CheckMp(Context context, ConnectivityService cs) { 3190 if (Build.IS_DEBUGGABLE) { 3191 mTestingFailures = 3192 SystemProperties.getInt("persist.checkmp.testfailures", 0) == 1; 3193 } else { 3194 mTestingFailures = false; 3195 } 3196 3197 mContext = context; 3198 mCs = cs; 3199 3200 // Setup access to TelephonyService we'll be using. 3201 mTm = (TelephonyManager) mContext.getSystemService( 3202 Context.TELEPHONY_SERVICE); 3203 } 3204 3205 /** 3206 * Get the default url to use for the test. 3207 */ 3208 public String getDefaultUrl() { 3209 // See http://go/clientsdns for usage approval 3210 String server = Settings.Global.getString(mContext.getContentResolver(), 3211 Settings.Global.CAPTIVE_PORTAL_SERVER); 3212 if (server == null) { 3213 server = "clients3.google.com"; 3214 } 3215 return "http://" + server + "/generate_204"; 3216 } 3217 3218 /** 3219 * Detect if its possible to connect to the http url. DNS based detection techniques 3220 * do not work at all hotspots. The best way to check is to perform a request to 3221 * a known address that fetches the data we expect. 3222 */ 3223 private synchronized Integer isMobileOk(Params params) { 3224 Integer result = CMP_RESULT_CODE_NO_CONNECTION; 3225 Uri orgUri = Uri.parse(params.mUrl); 3226 Random rand = new Random(); 3227 mParams = params; 3228 3229 if (mCs.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false) { 3230 result = CMP_RESULT_CODE_NO_CONNECTION; 3231 log("isMobileOk: X not mobile capable result=" + result); 3232 return result; 3233 } 3234 3235 if (mCs.mIsStartingProvisioning.get()) { 3236 result = CMP_RESULT_CODE_IS_PROVISIONING; 3237 log("isMobileOk: X is provisioning result=" + result); 3238 return result; 3239 } 3240 3241 // See if we've already determined we've got a provisioning connection, 3242 // if so we don't need to do anything active. 3243 MobileDataStateTracker mdstDefault = (MobileDataStateTracker) 3244 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3245 boolean isDefaultProvisioning = mdstDefault.isProvisioningNetwork(); 3246 log("isMobileOk: isDefaultProvisioning=" + isDefaultProvisioning); 3247 3248 MobileDataStateTracker mdstHipri = (MobileDataStateTracker) 3249 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3250 boolean isHipriProvisioning = mdstHipri.isProvisioningNetwork(); 3251 log("isMobileOk: isHipriProvisioning=" + isHipriProvisioning); 3252 3253 if (isDefaultProvisioning || isHipriProvisioning) { 3254 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3255 log("isMobileOk: X default || hipri is provisioning result=" + result); 3256 return result; 3257 } 3258 3259 try { 3260 // Continue trying to connect until time has run out 3261 long endTime = SystemClock.elapsedRealtime() + params.mTimeOutMs; 3262 3263 if (!mCs.isMobileDataStateTrackerReady()) { 3264 // Wait for MobileDataStateTracker to be ready. 3265 if (DBG) log("isMobileOk: mdst is not ready"); 3266 while(SystemClock.elapsedRealtime() < endTime) { 3267 if (mCs.isMobileDataStateTrackerReady()) { 3268 // Enable fail fast as we'll do retries here and use a 3269 // hipri connection so the default connection stays active. 3270 if (DBG) log("isMobileOk: mdst ready, enable fail fast of mobile data"); 3271 mCs.setEnableFailFastMobileData(DctConstants.ENABLED); 3272 break; 3273 } 3274 sleep(POLLING_SLEEP_SEC); 3275 } 3276 } 3277 3278 log("isMobileOk: start hipri url=" + params.mUrl); 3279 3280 // First wait until we can start using hipri 3281 Binder binder = new Binder(); 3282/* 3283 while(SystemClock.elapsedRealtime() < endTime) { 3284 int ret = mCs.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3285 Phone.FEATURE_ENABLE_HIPRI, binder); 3286 if ((ret == PhoneConstants.APN_ALREADY_ACTIVE) 3287 || (ret == PhoneConstants.APN_REQUEST_STARTED)) { 3288 log("isMobileOk: hipri started"); 3289 break; 3290 } 3291 if (VDBG) log("isMobileOk: hipri not started yet"); 3292 result = CMP_RESULT_CODE_NO_CONNECTION; 3293 sleep(POLLING_SLEEP_SEC); 3294 } 3295*/ 3296 // Continue trying to connect until time has run out 3297 while(SystemClock.elapsedRealtime() < endTime) { 3298 try { 3299 // Wait for hipri to connect. 3300 // TODO: Don't poll and handle situation where hipri fails 3301 // because default is retrying. See b/9569540 3302 NetworkInfo.State state = mCs 3303 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3304 if (state != NetworkInfo.State.CONNECTED) { 3305 if (true/*VDBG*/) { 3306 log("isMobileOk: not connected ni=" + 3307 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3308 } 3309 sleep(POLLING_SLEEP_SEC); 3310 result = CMP_RESULT_CODE_NO_CONNECTION; 3311 continue; 3312 } 3313 3314 // Hipri has started check if this is a provisioning url 3315 MobileDataStateTracker mdst = (MobileDataStateTracker) 3316 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3317 if (mdst.isProvisioningNetwork()) { 3318 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3319 if (DBG) log("isMobileOk: X isProvisioningNetwork result=" + result); 3320 return result; 3321 } else { 3322 if (DBG) log("isMobileOk: isProvisioningNetwork is false, continue"); 3323 } 3324 3325 // Get of the addresses associated with the url host. We need to use the 3326 // address otherwise HttpURLConnection object will use the name to get 3327 // the addresses and will try every address but that will bypass the 3328 // route to host we setup and the connection could succeed as the default 3329 // interface might be connected to the internet via wifi or other interface. 3330 InetAddress[] addresses; 3331 try { 3332 addresses = InetAddress.getAllByName(orgUri.getHost()); 3333 } catch (UnknownHostException e) { 3334 result = CMP_RESULT_CODE_NO_DNS; 3335 log("isMobileOk: X UnknownHostException result=" + result); 3336 return result; 3337 } 3338 log("isMobileOk: addresses=" + inetAddressesToString(addresses)); 3339 3340 // Get the type of addresses supported by this link 3341 LinkProperties lp = mCs.getLinkPropertiesForTypeInternal( 3342 ConnectivityManager.TYPE_MOBILE_HIPRI); 3343 boolean linkHasIpv4 = lp.hasIPv4Address(); 3344 boolean linkHasIpv6 = lp.hasGlobalIPv6Address(); 3345 log("isMobileOk: linkHasIpv4=" + linkHasIpv4 3346 + " linkHasIpv6=" + linkHasIpv6); 3347 3348 final ArrayList<InetAddress> validAddresses = 3349 new ArrayList<InetAddress>(addresses.length); 3350 3351 for (InetAddress addr : addresses) { 3352 if (((addr instanceof Inet4Address) && linkHasIpv4) || 3353 ((addr instanceof Inet6Address) && linkHasIpv6)) { 3354 validAddresses.add(addr); 3355 } 3356 } 3357 3358 if (validAddresses.size() == 0) { 3359 return CMP_RESULT_CODE_NO_CONNECTION; 3360 } 3361 3362 int addrTried = 0; 3363 while (true) { 3364 // Loop through at most MAX_LOOPS valid addresses or until 3365 // we run out of time 3366 if (addrTried++ >= MAX_LOOPS) { 3367 log("isMobileOk: too many loops tried - giving up"); 3368 break; 3369 } 3370 if (SystemClock.elapsedRealtime() >= endTime) { 3371 log("isMobileOk: spend too much time - giving up"); 3372 break; 3373 } 3374 3375 InetAddress hostAddr = validAddresses.get(rand.nextInt( 3376 validAddresses.size())); 3377 3378 // Make a route to host so we check the specific interface. 3379 if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI, 3380 hostAddr.getAddress())) { 3381 // Wait a short time to be sure the route is established ?? 3382 log("isMobileOk:" 3383 + " wait to establish route to hostAddr=" + hostAddr); 3384 sleep(NET_ROUTE_ESTABLISHMENT_SLEEP_SEC); 3385 } else { 3386 log("isMobileOk:" 3387 + " could not establish route to hostAddr=" + hostAddr); 3388 // Wait a short time before the next attempt 3389 sleep(NET_ERROR_SLEEP_SEC); 3390 continue; 3391 } 3392 3393 // Rewrite the url to have numeric address to use the specific route 3394 // using http for half the attempts and https for the other half. 3395 // Doing https first and http second as on a redirected walled garden 3396 // such as t-mobile uses we get a SocketTimeoutException: "SSL 3397 // handshake timed out" which we declare as 3398 // CMP_RESULT_CODE_NO_TCP_CONNECTION. We could change this, but by 3399 // having http second we will be using logic used for some time. 3400 URL newUrl; 3401 String scheme = (addrTried <= (MAX_LOOPS/2)) ? "https" : "http"; 3402 newUrl = new URL(scheme, hostAddr.getHostAddress(), 3403 orgUri.getPath()); 3404 log("isMobileOk: newUrl=" + newUrl); 3405 3406 HttpURLConnection urlConn = null; 3407 try { 3408 // Open the connection set the request headers and get the response 3409 urlConn = (HttpURLConnection)newUrl.openConnection( 3410 java.net.Proxy.NO_PROXY); 3411 if (scheme.equals("https")) { 3412 ((HttpsURLConnection)urlConn).setHostnameVerifier( 3413 new CheckMpHostnameVerifier(orgUri)); 3414 } 3415 urlConn.setInstanceFollowRedirects(false); 3416 urlConn.setConnectTimeout(SOCKET_TIMEOUT_MS); 3417 urlConn.setReadTimeout(SOCKET_TIMEOUT_MS); 3418 urlConn.setUseCaches(false); 3419 urlConn.setAllowUserInteraction(false); 3420 // Set the "Connection" to "Close" as by default "Keep-Alive" 3421 // is used which is useless in this case. 3422 urlConn.setRequestProperty("Connection", "close"); 3423 int responseCode = urlConn.getResponseCode(); 3424 3425 // For debug display the headers 3426 Map<String, List<String>> headers = urlConn.getHeaderFields(); 3427 log("isMobileOk: headers=" + headers); 3428 3429 // Close the connection 3430 urlConn.disconnect(); 3431 urlConn = null; 3432 3433 if (mTestingFailures) { 3434 // Pretend no connection, this tests using http and https 3435 result = CMP_RESULT_CODE_NO_CONNECTION; 3436 log("isMobileOk: TESTING_FAILURES, pretend no connction"); 3437 continue; 3438 } 3439 3440 if (responseCode == 204) { 3441 // Return 3442 result = CMP_RESULT_CODE_CONNECTABLE; 3443 log("isMobileOk: X got expected responseCode=" + responseCode 3444 + " result=" + result); 3445 return result; 3446 } else { 3447 // Retry to be sure this was redirected, we've gotten 3448 // occasions where a server returned 200 even though 3449 // the device didn't have a "warm" sim. 3450 log("isMobileOk: not expected responseCode=" + responseCode); 3451 // TODO - it would be nice in the single-address case to do 3452 // another DNS resolve here, but flushing the cache is a bit 3453 // heavy-handed. 3454 result = CMP_RESULT_CODE_REDIRECTED; 3455 } 3456 } catch (Exception e) { 3457 log("isMobileOk: HttpURLConnection Exception" + e); 3458 result = CMP_RESULT_CODE_NO_TCP_CONNECTION; 3459 if (urlConn != null) { 3460 urlConn.disconnect(); 3461 urlConn = null; 3462 } 3463 sleep(NET_ERROR_SLEEP_SEC); 3464 continue; 3465 } 3466 } 3467 log("isMobileOk: X loops|timed out result=" + result); 3468 return result; 3469 } catch (Exception e) { 3470 log("isMobileOk: Exception e=" + e); 3471 continue; 3472 } 3473 } 3474 log("isMobileOk: timed out"); 3475 } finally { 3476 log("isMobileOk: F stop hipri"); 3477 mCs.setEnableFailFastMobileData(DctConstants.DISABLED); 3478// mCs.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3479// Phone.FEATURE_ENABLE_HIPRI); 3480 3481 // Wait for hipri to disconnect. 3482 long endTime = SystemClock.elapsedRealtime() + 5000; 3483 3484 while(SystemClock.elapsedRealtime() < endTime) { 3485 NetworkInfo.State state = mCs 3486 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3487 if (state != NetworkInfo.State.DISCONNECTED) { 3488 if (VDBG) { 3489 log("isMobileOk: connected ni=" + 3490 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3491 } 3492 sleep(POLLING_SLEEP_SEC); 3493 continue; 3494 } 3495 } 3496 3497 log("isMobileOk: X result=" + result); 3498 } 3499 return result; 3500 } 3501 3502 @Override 3503 protected Integer doInBackground(Params... params) { 3504 return isMobileOk(params[0]); 3505 } 3506 3507 @Override 3508 protected void onPostExecute(Integer result) { 3509 log("onPostExecute: result=" + result); 3510 if ((mParams != null) && (mParams.mCb != null)) { 3511 mParams.mCb.onComplete(result); 3512 } 3513 } 3514 3515 private String inetAddressesToString(InetAddress[] addresses) { 3516 StringBuffer sb = new StringBuffer(); 3517 boolean firstTime = true; 3518 for(InetAddress addr : addresses) { 3519 if (firstTime) { 3520 firstTime = false; 3521 } else { 3522 sb.append(","); 3523 } 3524 sb.append(addr); 3525 } 3526 return sb.toString(); 3527 } 3528 3529 private void printNetworkInfo() { 3530 boolean hasIccCard = mTm.hasIccCard(); 3531 int simState = mTm.getSimState(); 3532 log("hasIccCard=" + hasIccCard 3533 + " simState=" + simState); 3534 NetworkInfo[] ni = mCs.getAllNetworkInfo(); 3535 if (ni != null) { 3536 log("ni.length=" + ni.length); 3537 for (NetworkInfo netInfo: ni) { 3538 log("netInfo=" + netInfo.toString()); 3539 } 3540 } else { 3541 log("no network info ni=null"); 3542 } 3543 } 3544 3545 /** 3546 * Sleep for a few seconds then return. 3547 * @param seconds 3548 */ 3549 private static void sleep(int seconds) { 3550 long stopTime = System.nanoTime() + (seconds * 1000000000); 3551 long sleepTime; 3552 while ((sleepTime = stopTime - System.nanoTime()) > 0) { 3553 try { 3554 Thread.sleep(sleepTime / 1000000); 3555 } catch (InterruptedException ignored) { 3556 } 3557 } 3558 } 3559 3560 private static void log(String s) { 3561 Slog.d(ConnectivityService.TAG, "[" + CHECKMP_TAG + "] " + s); 3562 } 3563 } 3564 3565 // TODO: Move to ConnectivityManager and make public? 3566 private static final String CONNECTED_TO_PROVISIONING_NETWORK_ACTION = 3567 "com.android.server.connectivityservice.CONNECTED_TO_PROVISIONING_NETWORK_ACTION"; 3568 3569 private BroadcastReceiver mProvisioningReceiver = new BroadcastReceiver() { 3570 @Override 3571 public void onReceive(Context context, Intent intent) { 3572 if (intent.getAction().equals(CONNECTED_TO_PROVISIONING_NETWORK_ACTION)) { 3573 handleMobileProvisioningAction(intent.getStringExtra("EXTRA_URL")); 3574 } 3575 } 3576 }; 3577 3578 private void handleMobileProvisioningAction(String url) { 3579 // Mark notification as not visible 3580 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3581 3582 // Check airplane mode 3583 boolean isAirplaneModeOn = Settings.System.getInt(mContext.getContentResolver(), 3584 Settings.Global.AIRPLANE_MODE_ON, 0) == 1; 3585 // If provisioning network and not in airplane mode handle as a special case, 3586 // otherwise launch browser with the intent directly. 3587 if (mIsProvisioningNetwork.get() && !isAirplaneModeOn) { 3588 if (DBG) log("handleMobileProvisioningAction: on prov network enable then launch"); 3589 mIsProvisioningNetwork.set(false); 3590// mIsStartingProvisioning.set(true); 3591// MobileDataStateTracker mdst = (MobileDataStateTracker) 3592// mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3593 // Radio was disabled on CMP_RESULT_CODE_PROVISIONING_NETWORK, enable it here 3594// mdst.setRadio(true); 3595// mdst.setEnableFailFastMobileData(DctConstants.ENABLED); 3596// mdst.enableMobileProvisioning(url); 3597 } else { 3598 if (DBG) log("handleMobileProvisioningAction: not prov network"); 3599 mIsProvisioningNetwork.set(false); 3600 // Check for apps that can handle provisioning first 3601 Intent provisioningIntent = new Intent(TelephonyIntents.ACTION_CARRIER_SETUP); 3602 List<String> carrierPackages = 3603 mTelephonyManager.getCarrierPackageNamesForIntent(provisioningIntent); 3604 if (carrierPackages != null && !carrierPackages.isEmpty()) { 3605 if (carrierPackages.size() != 1) { 3606 if (DBG) log("Multiple matching carrier apps found, launching the first."); 3607 } 3608 provisioningIntent.setPackage(carrierPackages.get(0)); 3609 provisioningIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3610 Intent.FLAG_ACTIVITY_NEW_TASK); 3611 mContext.startActivity(provisioningIntent); 3612 } else { 3613 // If no apps exist, use standard URL ACTION_VIEW method 3614 Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, 3615 Intent.CATEGORY_APP_BROWSER); 3616 newIntent.setData(Uri.parse(url)); 3617 newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3618 Intent.FLAG_ACTIVITY_NEW_TASK); 3619 try { 3620 mContext.startActivity(newIntent); 3621 } catch (ActivityNotFoundException e) { 3622 loge("handleMobileProvisioningAction: startActivity failed" + e); 3623 } 3624 } 3625 } 3626 } 3627 3628 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 3629 private volatile boolean mIsNotificationVisible = false; 3630 3631 private void setProvNotificationVisible(boolean visible, int networkType, String extraInfo, 3632 String url) { 3633 if (DBG) { 3634 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 3635 + " extraInfo=" + extraInfo + " url=" + url); 3636 } 3637 Intent intent = null; 3638 PendingIntent pendingIntent = null; 3639 if (visible) { 3640 switch (networkType) { 3641 case ConnectivityManager.TYPE_WIFI: 3642 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3643 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3644 Intent.FLAG_ACTIVITY_NEW_TASK); 3645 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3646 break; 3647 case ConnectivityManager.TYPE_MOBILE: 3648 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3649 intent = new Intent(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 3650 intent.putExtra("EXTRA_URL", url); 3651 intent.setFlags(0); 3652 pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 3653 break; 3654 default: 3655 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3656 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3657 Intent.FLAG_ACTIVITY_NEW_TASK); 3658 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3659 break; 3660 } 3661 } 3662 // Concatenate the range of types onto the range of NetIDs. 3663 int id = MAX_NET_ID + 1 + (networkType - ConnectivityManager.TYPE_NONE); 3664 setProvNotificationVisibleIntent(visible, id, networkType, extraInfo, pendingIntent); 3665 } 3666 3667 /** 3668 * Show or hide network provisioning notificaitons. 3669 * 3670 * @param id an identifier that uniquely identifies this notification. This must match 3671 * between show and hide calls. We use the NetID value but for legacy callers 3672 * we concatenate the range of types with the range of NetIDs. 3673 */ 3674 private void setProvNotificationVisibleIntent(boolean visible, int id, int networkType, 3675 String extraInfo, PendingIntent intent) { 3676 if (DBG) { 3677 log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + 3678 networkType + " extraInfo=" + extraInfo); 3679 } 3680 3681 Resources r = Resources.getSystem(); 3682 NotificationManager notificationManager = (NotificationManager) mContext 3683 .getSystemService(Context.NOTIFICATION_SERVICE); 3684 3685 if (visible) { 3686 CharSequence title; 3687 CharSequence details; 3688 int icon; 3689 Notification notification = new Notification(); 3690 switch (networkType) { 3691 case ConnectivityManager.TYPE_WIFI: 3692 title = r.getString(R.string.wifi_available_sign_in, 0); 3693 details = r.getString(R.string.network_available_sign_in_detailed, 3694 extraInfo); 3695 icon = R.drawable.stat_notify_wifi_in_range; 3696 break; 3697 case ConnectivityManager.TYPE_MOBILE: 3698 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3699 title = r.getString(R.string.network_available_sign_in, 0); 3700 // TODO: Change this to pull from NetworkInfo once a printable 3701 // name has been added to it 3702 details = mTelephonyManager.getNetworkOperatorName(); 3703 icon = R.drawable.stat_notify_rssi_in_range; 3704 break; 3705 default: 3706 title = r.getString(R.string.network_available_sign_in, 0); 3707 details = r.getString(R.string.network_available_sign_in_detailed, 3708 extraInfo); 3709 icon = R.drawable.stat_notify_rssi_in_range; 3710 break; 3711 } 3712 3713 notification.when = 0; 3714 notification.icon = icon; 3715 notification.flags = Notification.FLAG_AUTO_CANCEL; 3716 notification.tickerText = title; 3717 notification.color = mContext.getResources().getColor( 3718 com.android.internal.R.color.system_notification_accent_color); 3719 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 3720 notification.contentIntent = intent; 3721 3722 try { 3723 notificationManager.notify(NOTIFICATION_ID, id, notification); 3724 } catch (NullPointerException npe) { 3725 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 3726 npe.printStackTrace(); 3727 } 3728 } else { 3729 try { 3730 notificationManager.cancel(NOTIFICATION_ID, id); 3731 } catch (NullPointerException npe) { 3732 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 3733 npe.printStackTrace(); 3734 } 3735 } 3736 mIsNotificationVisible = visible; 3737 } 3738 3739 /** Location to an updatable file listing carrier provisioning urls. 3740 * An example: 3741 * 3742 * <?xml version="1.0" encoding="utf-8"?> 3743 * <provisioningUrls> 3744 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 3745 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 3746 * </provisioningUrls> 3747 */ 3748 private static final String PROVISIONING_URL_PATH = 3749 "/data/misc/radio/provisioning_urls.xml"; 3750 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 3751 3752 /** XML tag for root element. */ 3753 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 3754 /** XML tag for individual url */ 3755 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 3756 /** XML tag for redirected url */ 3757 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 3758 /** XML attribute for mcc */ 3759 private static final String ATTR_MCC = "mcc"; 3760 /** XML attribute for mnc */ 3761 private static final String ATTR_MNC = "mnc"; 3762 3763 private static final int REDIRECTED_PROVISIONING = 1; 3764 private static final int PROVISIONING = 2; 3765 3766 private String getProvisioningUrlBaseFromFile(int type) { 3767 FileReader fileReader = null; 3768 XmlPullParser parser = null; 3769 Configuration config = mContext.getResources().getConfiguration(); 3770 String tagType; 3771 3772 switch (type) { 3773 case PROVISIONING: 3774 tagType = TAG_PROVISIONING_URL; 3775 break; 3776 case REDIRECTED_PROVISIONING: 3777 tagType = TAG_REDIRECTED_URL; 3778 break; 3779 default: 3780 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 3781 type); 3782 } 3783 3784 try { 3785 fileReader = new FileReader(mProvisioningUrlFile); 3786 parser = Xml.newPullParser(); 3787 parser.setInput(fileReader); 3788 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 3789 3790 while (true) { 3791 XmlUtils.nextElement(parser); 3792 3793 String element = parser.getName(); 3794 if (element == null) break; 3795 3796 if (element.equals(tagType)) { 3797 String mcc = parser.getAttributeValue(null, ATTR_MCC); 3798 try { 3799 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 3800 String mnc = parser.getAttributeValue(null, ATTR_MNC); 3801 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 3802 parser.next(); 3803 if (parser.getEventType() == XmlPullParser.TEXT) { 3804 return parser.getText(); 3805 } 3806 } 3807 } 3808 } catch (NumberFormatException e) { 3809 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 3810 } 3811 } 3812 } 3813 return null; 3814 } catch (FileNotFoundException e) { 3815 loge("Carrier Provisioning Urls file not found"); 3816 } catch (XmlPullParserException e) { 3817 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 3818 } catch (IOException e) { 3819 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 3820 } finally { 3821 if (fileReader != null) { 3822 try { 3823 fileReader.close(); 3824 } catch (IOException e) {} 3825 } 3826 } 3827 return null; 3828 } 3829 3830 @Override 3831 public String getMobileRedirectedProvisioningUrl() { 3832 enforceConnectivityInternalPermission(); 3833 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 3834 if (TextUtils.isEmpty(url)) { 3835 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 3836 } 3837 return url; 3838 } 3839 3840 @Override 3841 public String getMobileProvisioningUrl() { 3842 enforceConnectivityInternalPermission(); 3843 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 3844 if (TextUtils.isEmpty(url)) { 3845 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 3846 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 3847 } else { 3848 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 3849 } 3850 // populate the iccid, imei and phone number in the provisioning url. 3851 if (!TextUtils.isEmpty(url)) { 3852 String phoneNumber = mTelephonyManager.getLine1Number(); 3853 if (TextUtils.isEmpty(phoneNumber)) { 3854 phoneNumber = "0000000000"; 3855 } 3856 url = String.format(url, 3857 mTelephonyManager.getSimSerialNumber() /* ICCID */, 3858 mTelephonyManager.getDeviceId() /* IMEI */, 3859 phoneNumber /* Phone numer */); 3860 } 3861 3862 return url; 3863 } 3864 3865 @Override 3866 public void setProvisioningNotificationVisible(boolean visible, int networkType, 3867 String extraInfo, String url) { 3868 enforceConnectivityInternalPermission(); 3869 setProvNotificationVisible(visible, networkType, extraInfo, url); 3870 } 3871 3872 @Override 3873 public void setAirplaneMode(boolean enable) { 3874 enforceConnectivityInternalPermission(); 3875 final long ident = Binder.clearCallingIdentity(); 3876 try { 3877 final ContentResolver cr = mContext.getContentResolver(); 3878 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 3879 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 3880 intent.putExtra("state", enable); 3881 mContext.sendBroadcast(intent); 3882 } finally { 3883 Binder.restoreCallingIdentity(ident); 3884 } 3885 } 3886 3887 private void onUserStart(int userId) { 3888 synchronized(mVpns) { 3889 Vpn userVpn = mVpns.get(userId); 3890 if (userVpn != null) { 3891 loge("Starting user already has a VPN"); 3892 return; 3893 } 3894 userVpn = new Vpn(mHandler.getLooper(), mContext, mNetd, this, userId); 3895 mVpns.put(userId, userVpn); 3896 } 3897 } 3898 3899 private void onUserStop(int userId) { 3900 synchronized(mVpns) { 3901 Vpn userVpn = mVpns.get(userId); 3902 if (userVpn == null) { 3903 loge("Stopping user has no VPN"); 3904 return; 3905 } 3906 mVpns.delete(userId); 3907 } 3908 } 3909 3910 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 3911 @Override 3912 public void onReceive(Context context, Intent intent) { 3913 final String action = intent.getAction(); 3914 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3915 if (userId == UserHandle.USER_NULL) return; 3916 3917 if (Intent.ACTION_USER_STARTING.equals(action)) { 3918 onUserStart(userId); 3919 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 3920 onUserStop(userId); 3921 } 3922 } 3923 }; 3924 3925 @Override 3926 public LinkQualityInfo getLinkQualityInfo(int networkType) { 3927 enforceAccessPermission(); 3928 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 3929 return mNetTrackers[networkType].getLinkQualityInfo(); 3930 } else { 3931 return null; 3932 } 3933 } 3934 3935 @Override 3936 public LinkQualityInfo getActiveLinkQualityInfo() { 3937 enforceAccessPermission(); 3938 if (isNetworkTypeValid(mActiveDefaultNetwork) && 3939 mNetTrackers[mActiveDefaultNetwork] != null) { 3940 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 3941 } else { 3942 return null; 3943 } 3944 } 3945 3946 @Override 3947 public LinkQualityInfo[] getAllLinkQualityInfo() { 3948 enforceAccessPermission(); 3949 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 3950 for (NetworkStateTracker tracker : mNetTrackers) { 3951 if (tracker != null) { 3952 LinkQualityInfo li = tracker.getLinkQualityInfo(); 3953 if (li != null) { 3954 result.add(li); 3955 } 3956 } 3957 } 3958 3959 return result.toArray(new LinkQualityInfo[result.size()]); 3960 } 3961 3962 /* Infrastructure for network sampling */ 3963 3964 private void handleNetworkSamplingTimeout() { 3965 3966 if (SAMPLE_DBG) log("Sampling interval elapsed, updating statistics .."); 3967 3968 // initialize list of interfaces .. 3969 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 3970 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 3971 for (NetworkStateTracker tracker : mNetTrackers) { 3972 if (tracker != null) { 3973 String ifaceName = tracker.getNetworkInterfaceName(); 3974 if (ifaceName != null) { 3975 mapIfaceToSample.put(ifaceName, null); 3976 } 3977 } 3978 } 3979 3980 // Read samples for all interfaces 3981 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 3982 3983 // process samples for all networks 3984 for (NetworkStateTracker tracker : mNetTrackers) { 3985 if (tracker != null) { 3986 String ifaceName = tracker.getNetworkInterfaceName(); 3987 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 3988 if (ss != null) { 3989 // end the previous sampling cycle 3990 tracker.stopSampling(ss); 3991 // start a new sampling cycle .. 3992 tracker.startSampling(ss); 3993 } 3994 } 3995 } 3996 3997 if (SAMPLE_DBG) log("Done."); 3998 3999 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 4000 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 4001 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 4002 4003 if (SAMPLE_DBG) { 4004 log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 4005 } 4006 4007 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 4008 } 4009 4010 /** 4011 * Sets a network sampling alarm. 4012 */ 4013 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 4014 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 4015 int alarmType; 4016 if (Resources.getSystem().getBoolean( 4017 R.bool.config_networkSamplingWakesDevice)) { 4018 alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP; 4019 } else { 4020 alarmType = AlarmManager.ELAPSED_REALTIME; 4021 } 4022 mAlarmManager.set(alarmType, wakeupTime, intent); 4023 } 4024 4025 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 4026 new HashMap<Messenger, NetworkFactoryInfo>(); 4027 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 4028 new HashMap<NetworkRequest, NetworkRequestInfo>(); 4029 4030 private static class NetworkFactoryInfo { 4031 public final String name; 4032 public final Messenger messenger; 4033 public final AsyncChannel asyncChannel; 4034 4035 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 4036 this.name = name; 4037 this.messenger = messenger; 4038 this.asyncChannel = asyncChannel; 4039 } 4040 } 4041 4042 /** 4043 * Tracks info about the requester. 4044 * Also used to notice when the calling process dies so we can self-expire 4045 */ 4046 private class NetworkRequestInfo implements IBinder.DeathRecipient { 4047 static final boolean REQUEST = true; 4048 static final boolean LISTEN = false; 4049 4050 final NetworkRequest request; 4051 IBinder mBinder; 4052 final int mPid; 4053 final int mUid; 4054 final Messenger messenger; 4055 final boolean isRequest; 4056 4057 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 4058 super(); 4059 messenger = m; 4060 request = r; 4061 mBinder = binder; 4062 mPid = getCallingPid(); 4063 mUid = getCallingUid(); 4064 this.isRequest = isRequest; 4065 4066 try { 4067 mBinder.linkToDeath(this, 0); 4068 } catch (RemoteException e) { 4069 binderDied(); 4070 } 4071 } 4072 4073 void unlinkDeathRecipient() { 4074 mBinder.unlinkToDeath(this, 0); 4075 } 4076 4077 public void binderDied() { 4078 log("ConnectivityService NetworkRequestInfo binderDied(" + 4079 request + ", " + mBinder + ")"); 4080 releaseNetworkRequest(request); 4081 } 4082 4083 public String toString() { 4084 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 4085 mPid + " for " + request; 4086 } 4087 } 4088 4089 @Override 4090 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 4091 Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { 4092 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 4093 == false) { 4094 enforceConnectivityInternalPermission(); 4095 } else { 4096 enforceChangePermission(); 4097 } 4098 4099 networkCapabilities = new NetworkCapabilities(networkCapabilities); 4100 4101 // if UID is restricted, don't allow them to bring up metered APNs 4102 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED) 4103 == false) { 4104 final int uidRules; 4105 synchronized(mRulesLock) { 4106 uidRules = mUidRules.get(Binder.getCallingUid(), RULE_ALLOW_ALL); 4107 } 4108 if ((uidRules & RULE_REJECT_METERED) != 0) { 4109 // we could silently fail or we can filter the available nets to only give 4110 // them those they have access to. Chose the more useful 4111 networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 4112 } 4113 } 4114 4115 if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { 4116 throw new IllegalArgumentException("Bad timeout specified"); 4117 } 4118 NetworkRequest networkRequest = new NetworkRequest(networkCapabilities, legacyType, 4119 nextNetworkRequestId()); 4120 if (DBG) log("requestNetwork for " + networkRequest); 4121 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4122 NetworkRequestInfo.REQUEST); 4123 4124 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 4125 if (timeoutMs > 0) { 4126 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 4127 nri), timeoutMs); 4128 } 4129 return networkRequest; 4130 } 4131 4132 @Override 4133 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 4134 PendingIntent operation) { 4135 // TODO 4136 return null; 4137 } 4138 4139 @Override 4140 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 4141 Messenger messenger, IBinder binder) { 4142 enforceAccessPermission(); 4143 4144 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 4145 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 4146 if (DBG) log("listenForNetwork for " + networkRequest); 4147 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4148 NetworkRequestInfo.LISTEN); 4149 4150 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 4151 return networkRequest; 4152 } 4153 4154 @Override 4155 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 4156 PendingIntent operation) { 4157 } 4158 4159 @Override 4160 public void releaseNetworkRequest(NetworkRequest networkRequest) { 4161 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), 4162 0, networkRequest)); 4163 } 4164 4165 @Override 4166 public void registerNetworkFactory(Messenger messenger, String name) { 4167 enforceConnectivityInternalPermission(); 4168 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 4169 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 4170 } 4171 4172 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 4173 if (DBG) log("Got NetworkFactory Messenger for " + nfi.name); 4174 mNetworkFactoryInfos.put(nfi.messenger, nfi); 4175 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 4176 } 4177 4178 @Override 4179 public void unregisterNetworkFactory(Messenger messenger) { 4180 enforceConnectivityInternalPermission(); 4181 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 4182 } 4183 4184 private void handleUnregisterNetworkFactory(Messenger messenger) { 4185 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 4186 if (nfi == null) { 4187 loge("Failed to find Messenger in unregisterNetworkFactory"); 4188 return; 4189 } 4190 if (DBG) log("unregisterNetworkFactory for " + nfi.name); 4191 } 4192 4193 /** 4194 * NetworkAgentInfo supporting a request by requestId. 4195 * These have already been vetted (their Capabilities satisfy the request) 4196 * and the are the highest scored network available. 4197 * the are keyed off the Requests requestId. 4198 */ 4199 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 4200 new SparseArray<NetworkAgentInfo>(); 4201 4202 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 4203 new SparseArray<NetworkAgentInfo>(); 4204 4205 // NetworkAgentInfo keyed off its connecting messenger 4206 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 4207 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 4208 new HashMap<Messenger, NetworkAgentInfo>(); 4209 4210 private final NetworkRequest mDefaultRequest; 4211 4212 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 4213 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 4214 } 4215 4216 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 4217 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 4218 int currentScore, NetworkMisc networkMisc) { 4219 enforceConnectivityInternalPermission(); 4220 4221 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), 4222 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 4223 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler, 4224 new NetworkMisc(networkMisc)); 4225 synchronized (this) { 4226 nai.networkMonitor.systemReady = mSystemReady; 4227 } 4228 if (DBG) log("registerNetworkAgent " + nai); 4229 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 4230 } 4231 4232 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 4233 if (VDBG) log("Got NetworkAgent Messenger"); 4234 mNetworkAgentInfos.put(na.messenger, na); 4235 assignNextNetId(na); 4236 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 4237 NetworkInfo networkInfo = na.networkInfo; 4238 na.networkInfo = null; 4239 updateNetworkInfo(na, networkInfo); 4240 } 4241 4242 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 4243 LinkProperties newLp = networkAgent.linkProperties; 4244 int netId = networkAgent.network.netId; 4245 4246 updateInterfaces(newLp, oldLp, netId); 4247 updateMtu(newLp, oldLp); 4248 updateTcpBufferSizes(networkAgent); 4249 // TODO - figure out what to do for clat 4250// for (LinkProperties lp : newLp.getStackedLinks()) { 4251// updateMtu(lp, null); 4252// } 4253 final boolean flushDns = updateRoutes(newLp, oldLp, netId); 4254 updateDnses(newLp, oldLp, netId, flushDns); 4255 updateClat(newLp, oldLp, networkAgent); 4256 if (isDefaultNetwork(networkAgent)) handleApplyDefaultProxy(newLp.getHttpProxy()); 4257 } 4258 4259 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { 4260 // Update 464xlat state. 4261 if (mClat.requiresClat(na)) { 4262 4263 // If the connection was previously using clat, but is not using it now, stop the clat 4264 // daemon. Normally, this happens automatically when the connection disconnects, but if 4265 // the disconnect is not reported, or if the connection's LinkProperties changed for 4266 // some other reason (e.g., handoff changes the IP addresses on the link), it would 4267 // still be running. If it's not running, then stopping it is a no-op. 4268 if (Nat464Xlat.isRunningClat(oldLp) && !Nat464Xlat.isRunningClat(newLp)) { 4269 mClat.stopClat(); 4270 } 4271 // If the link requires clat to be running, then start the daemon now. 4272 if (na.networkInfo.isConnected()) { 4273 mClat.startClat(na); 4274 } else { 4275 mClat.stopClat(); 4276 } 4277 } 4278 } 4279 4280 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 4281 CompareResult<String> interfaceDiff = new CompareResult<String>(); 4282 if (oldLp != null) { 4283 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 4284 } else if (newLp != null) { 4285 interfaceDiff.added = newLp.getAllInterfaceNames(); 4286 } 4287 for (String iface : interfaceDiff.added) { 4288 try { 4289 if (DBG) log("Adding iface " + iface + " to network " + netId); 4290 mNetd.addInterfaceToNetwork(iface, netId); 4291 } catch (Exception e) { 4292 loge("Exception adding interface: " + e); 4293 } 4294 } 4295 for (String iface : interfaceDiff.removed) { 4296 try { 4297 if (DBG) log("Removing iface " + iface + " from network " + netId); 4298 mNetd.removeInterfaceFromNetwork(iface, netId); 4299 } catch (Exception e) { 4300 loge("Exception removing interface: " + e); 4301 } 4302 } 4303 } 4304 4305 /** 4306 * Have netd update routes from oldLp to newLp. 4307 * @return true if routes changed between oldLp and newLp 4308 */ 4309 private boolean updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 4310 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 4311 if (oldLp != null) { 4312 routeDiff = oldLp.compareAllRoutes(newLp); 4313 } else if (newLp != null) { 4314 routeDiff.added = newLp.getAllRoutes(); 4315 } 4316 4317 // add routes before removing old in case it helps with continuous connectivity 4318 4319 // do this twice, adding non-nexthop routes first, then routes they are dependent on 4320 for (RouteInfo route : routeDiff.added) { 4321 if (route.hasGateway()) continue; 4322 if (DBG) log("Adding Route [" + route + "] to network " + netId); 4323 try { 4324 mNetd.addRoute(netId, route); 4325 } catch (Exception e) { 4326 if ((route.getDestination().getAddress() instanceof Inet4Address) || VDBG) { 4327 loge("Exception in addRoute for non-gateway: " + e); 4328 } 4329 } 4330 } 4331 for (RouteInfo route : routeDiff.added) { 4332 if (route.hasGateway() == false) continue; 4333 if (DBG) log("Adding Route [" + route + "] to network " + netId); 4334 try { 4335 mNetd.addRoute(netId, route); 4336 } catch (Exception e) { 4337 if ((route.getGateway() instanceof Inet4Address) || VDBG) { 4338 loge("Exception in addRoute for gateway: " + e); 4339 } 4340 } 4341 } 4342 4343 for (RouteInfo route : routeDiff.removed) { 4344 if (DBG) log("Removing Route [" + route + "] from network " + netId); 4345 try { 4346 mNetd.removeRoute(netId, route); 4347 } catch (Exception e) { 4348 loge("Exception in removeRoute: " + e); 4349 } 4350 } 4351 return !routeDiff.added.isEmpty() || !routeDiff.removed.isEmpty(); 4352 } 4353 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId, boolean flush) { 4354 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 4355 Collection<InetAddress> dnses = newLp.getDnsServers(); 4356 if (dnses.size() == 0 && mDefaultDns != null) { 4357 dnses = new ArrayList(); 4358 dnses.add(mDefaultDns); 4359 if (DBG) { 4360 loge("no dns provided for netId " + netId + ", so using defaults"); 4361 } 4362 } 4363 if (DBG) log("Setting Dns servers for network " + netId + " to " + dnses); 4364 try { 4365 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 4366 newLp.getDomains()); 4367 } catch (Exception e) { 4368 loge("Exception in setDnsServersForNetwork: " + e); 4369 } 4370 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 4371 if (defaultNai != null && defaultNai.network.netId == netId) { 4372 setDefaultDnsSystemProperties(dnses); 4373 } 4374 flushVmDnsCache(); 4375 } else if (flush) { 4376 try { 4377 mNetd.flushNetworkDnsCache(netId); 4378 } catch (Exception e) { 4379 loge("Exception in flushNetworkDnsCache: " + e); 4380 } 4381 flushVmDnsCache(); 4382 } 4383 } 4384 4385 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 4386 int last = 0; 4387 for (InetAddress dns : dnses) { 4388 ++last; 4389 String key = "net.dns" + last; 4390 String value = dns.getHostAddress(); 4391 SystemProperties.set(key, value); 4392 } 4393 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 4394 String key = "net.dns" + i; 4395 SystemProperties.set(key, ""); 4396 } 4397 mNumDnsEntries = last; 4398 } 4399 4400 4401 private void updateCapabilities(NetworkAgentInfo networkAgent, 4402 NetworkCapabilities networkCapabilities) { 4403 // TODO - what else here? Verify still satisfies everybody? 4404 // Check if satisfies somebody new? call callbacks? 4405 synchronized (networkAgent) { 4406 networkAgent.networkCapabilities = networkCapabilities; 4407 } 4408 } 4409 4410 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 4411 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 4412 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 4413 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 4414 networkRequest); 4415 } 4416 } 4417 4418 private void callCallbackForRequest(NetworkRequestInfo nri, 4419 NetworkAgentInfo networkAgent, int notificationType) { 4420 if (nri.messenger == null) return; // Default request has no msgr 4421 Object o; 4422 int a1 = 0; 4423 int a2 = 0; 4424 switch (notificationType) { 4425 case ConnectivityManager.CALLBACK_LOSING: 4426 a1 = 30 * 1000; // TODO - read this from NetworkMonitor 4427 // fall through 4428 case ConnectivityManager.CALLBACK_PRECHECK: 4429 case ConnectivityManager.CALLBACK_AVAILABLE: 4430 case ConnectivityManager.CALLBACK_LOST: 4431 case ConnectivityManager.CALLBACK_CAP_CHANGED: 4432 case ConnectivityManager.CALLBACK_IP_CHANGED: { 4433 o = new NetworkRequest(nri.request); 4434 a2 = networkAgent.network.netId; 4435 break; 4436 } 4437 case ConnectivityManager.CALLBACK_UNAVAIL: 4438 case ConnectivityManager.CALLBACK_RELEASED: { 4439 o = new NetworkRequest(nri.request); 4440 break; 4441 } 4442 default: { 4443 loge("Unknown notificationType " + notificationType); 4444 return; 4445 } 4446 } 4447 Message msg = Message.obtain(); 4448 msg.arg1 = a1; 4449 msg.arg2 = a2; 4450 msg.obj = o; 4451 msg.what = notificationType; 4452 try { 4453 if (VDBG) { 4454 log("sending notification " + notifyTypeToName(notificationType) + 4455 " for " + nri.request); 4456 } 4457 nri.messenger.send(msg); 4458 } catch (RemoteException e) { 4459 // may occur naturally in the race of binder death. 4460 loge("RemoteException caught trying to send a callback msg for " + nri.request); 4461 } 4462 } 4463 4464 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 4465 if (oldNetwork == null) { 4466 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 4467 return; 4468 } 4469 if (DBG) { 4470 log("handleLingerComplete for " + oldNetwork.name()); 4471 for (int i = 0; i < oldNetwork.networkRequests.size(); i++) { 4472 NetworkRequest nr = oldNetwork.networkRequests.valueAt(i); 4473 // Ignore listening requests. 4474 if (mNetworkRequests.get(nr).isRequest == false) continue; 4475 loge("Dead network still had at least " + nr); 4476 break; 4477 } 4478 } 4479 oldNetwork.asyncChannel.disconnect(); 4480 } 4481 4482 private void makeDefault(NetworkAgentInfo newNetwork) { 4483 if (DBG) log("Switching to new default network: " + newNetwork); 4484 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4485 setupDataActivityTracking(newNetwork); 4486 try { 4487 mNetd.setDefaultNetId(newNetwork.network.netId); 4488 } catch (Exception e) { 4489 loge("Exception setting default network :" + e); 4490 } 4491 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 4492 updateTcpBufferSizes(newNetwork); 4493 } 4494 4495 // Handles a network appearing or improving its score. 4496 // 4497 // - Evaluates all current NetworkRequests that can be 4498 // satisfied by newNetwork, and reassigns to newNetwork 4499 // any such requests for which newNetwork is the best. 4500 // 4501 // - Tears down any Networks that as a result are no longer 4502 // needed. A network is needed if it is the best network for 4503 // one or more NetworkRequests, or if it is a VPN. 4504 // 4505 // - Tears down newNetwork if it is validated but turns out to be 4506 // unneeded. Does not tear down newNetwork if it is 4507 // unvalidated, because future validation may improve 4508 // newNetwork's score enough that it is needed. 4509 // 4510 // NOTE: This function only adds NetworkRequests that "newNetwork" could satisfy, 4511 // it does not remove NetworkRequests that other Networks could better satisfy. 4512 // If you need to handle decreases in score, use {@link rematchAllNetworksAndRequests}. 4513 // This function should be used when possible instead of {@code rematchAllNetworksAndRequests} 4514 // as it performs better by a factor of the number of Networks. 4515 private void rematchNetworkAndRequests(NetworkAgentInfo newNetwork) { 4516 boolean keep = newNetwork.isVPN(); 4517 boolean isNewDefault = false; 4518 if (DBG) log("rematching " + newNetwork.name()); 4519 // Find and migrate to this Network any NetworkRequests for 4520 // which this network is now the best. 4521 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 4522 if (VDBG) log(" network has: " + newNetwork.networkCapabilities); 4523 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 4524 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 4525 if (newNetwork == currentNetwork) { 4526 if (DBG) { 4527 log("Network " + newNetwork.name() + " was already satisfying" + 4528 " request " + nri.request.requestId + ". No change."); 4529 } 4530 keep = true; 4531 continue; 4532 } 4533 4534 // check if it satisfies the NetworkCapabilities 4535 if (VDBG) log(" checking if request is satisfied: " + nri.request); 4536 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 4537 newNetwork.networkCapabilities)) { 4538 if (!nri.isRequest) { 4539 // This is not a request, it's a callback listener. 4540 // Add it to newNetwork regardless of score. 4541 newNetwork.addRequest(nri.request); 4542 continue; 4543 } 4544 4545 // next check if it's better than any current network we're using for 4546 // this request 4547 if (VDBG) { 4548 log("currentScore = " + 4549 (currentNetwork != null ? currentNetwork.getCurrentScore() : 0) + 4550 ", newScore = " + newNetwork.getCurrentScore()); 4551 } 4552 if (currentNetwork == null || 4553 currentNetwork.getCurrentScore() < newNetwork.getCurrentScore()) { 4554 if (currentNetwork != null) { 4555 if (DBG) log(" accepting network in place of " + currentNetwork.name()); 4556 currentNetwork.networkRequests.remove(nri.request.requestId); 4557 currentNetwork.networkLingered.add(nri.request); 4558 affectedNetworks.add(currentNetwork); 4559 } else { 4560 if (DBG) log(" accepting network in place of null"); 4561 } 4562 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 4563 newNetwork.addRequest(nri.request); 4564 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 4565 mLegacyTypeTracker.add(nri.request.legacyType, newNetwork); 4566 } 4567 keep = true; 4568 // Tell NetworkFactories about the new score, so they can stop 4569 // trying to connect if they know they cannot match it. 4570 // TODO - this could get expensive if we have alot of requests for this 4571 // network. Think about if there is a way to reduce this. Push 4572 // netid->request mapping to each factory? 4573 sendUpdatedScoreToFactories(nri.request, newNetwork.getCurrentScore()); 4574 if (mDefaultRequest.requestId == nri.request.requestId) { 4575 isNewDefault = true; 4576 // TODO: Remove following line. It's redundant with makeDefault call. 4577 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4578 if (newNetwork.linkProperties != null) { 4579 updateTcpBufferSizes(newNetwork); 4580 setDefaultDnsSystemProperties( 4581 newNetwork.linkProperties.getDnsServers()); 4582 } else { 4583 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 4584 } 4585 // Maintain the illusion: since the legacy API only 4586 // understands one network at a time, we must pretend 4587 // that the current default network disconnected before 4588 // the new one connected. 4589 if (currentNetwork != null) { 4590 mLegacyTypeTracker.remove(currentNetwork.networkInfo.getType(), 4591 currentNetwork); 4592 } 4593 mDefaultInetConditionPublished = newNetwork.validated ? 100 : 0; 4594 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 4595 } 4596 } 4597 } 4598 } 4599 // Linger any networks that are no longer needed. 4600 for (NetworkAgentInfo nai : affectedNetworks) { 4601 boolean teardown = !nai.isVPN(); 4602 for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { 4603 NetworkRequest nr = nai.networkRequests.valueAt(i); 4604 try { 4605 if (mNetworkRequests.get(nr).isRequest) { 4606 teardown = false; 4607 } 4608 } catch (Exception e) { 4609 loge("Request " + nr + " not found in mNetworkRequests."); 4610 loge(" it came from request list of " + nai.name()); 4611 } 4612 } 4613 if (teardown) { 4614 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 4615 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 4616 } else { 4617 // not going to linger, so kill the list of linger networks.. only 4618 // notify them of linger if it happens as the result of gaining another, 4619 // but if they transition and old network stays up, don't tell them of linger 4620 // or very delayed loss 4621 nai.networkLingered.clear(); 4622 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 4623 } 4624 } 4625 if (keep) { 4626 if (isNewDefault) { 4627 // Notify system services that this network is up. 4628 makeDefault(newNetwork); 4629 synchronized (ConnectivityService.this) { 4630 // have a new default network, release the transition wakelock in 4631 // a second if it's held. The second pause is to allow apps 4632 // to reconnect over the new network 4633 if (mNetTransitionWakeLock.isHeld()) { 4634 mHandler.sendMessageDelayed(mHandler.obtainMessage( 4635 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 4636 mNetTransitionWakeLockSerialNumber, 0), 4637 1000); 4638 } 4639 } 4640 } 4641 4642 // Notify battery stats service about this network, both the normal 4643 // interface and any stacked links. 4644 // TODO: Avoid redoing this; this must only be done once when a network comes online. 4645 try { 4646 final IBatteryStats bs = BatteryStatsService.getService(); 4647 final int type = newNetwork.networkInfo.getType(); 4648 4649 final String baseIface = newNetwork.linkProperties.getInterfaceName(); 4650 bs.noteNetworkInterfaceType(baseIface, type); 4651 for (LinkProperties stacked : newNetwork.linkProperties.getStackedLinks()) { 4652 final String stackedIface = stacked.getInterfaceName(); 4653 bs.noteNetworkInterfaceType(stackedIface, type); 4654 NetworkStatsFactory.noteStackedIface(stackedIface, baseIface); 4655 } 4656 } catch (RemoteException ignored) { 4657 } 4658 4659 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 4660 } else if (newNetwork.validated) { 4661 // Only tear down validated networks here. Leave unvalidated to either become 4662 // validated (and get evaluated against peers, one losing here) or 4663 // NetworkMonitor reports a bad network and we tear it down then. 4664 // TODO: Could teardown unvalidated networks when their NetworkCapabilities 4665 // satisfy no NetworkRequests. 4666 if (DBG && newNetwork.networkRequests.size() != 0) { 4667 loge("tearing down network with live requests:"); 4668 for (int i=0; i < newNetwork.networkRequests.size(); i++) { 4669 loge(" " + newNetwork.networkRequests.valueAt(i)); 4670 } 4671 } 4672 if (DBG) log("Validated network turns out to be unwanted. Tear it down."); 4673 newNetwork.asyncChannel.disconnect(); 4674 } 4675 } 4676 4677 // Attempt to rematch all Networks with NetworkRequests. This may result in Networks 4678 // being disconnected. 4679 // If only one Network's score or capabilities have been modified since the last time 4680 // this function was called, pass this Network in via the "changed" arugment, otherwise 4681 // pass null. 4682 // If only one Network has been changed but its NetworkCapabilities have not changed, 4683 // pass in the Network's score (from getCurrentScore()) prior to the change via 4684 // "oldScore", otherwise pass changed.getCurrentScore() or 0 if "changed" is null. 4685 private void rematchAllNetworksAndRequests(NetworkAgentInfo changed, int oldScore) { 4686 // TODO: This may get slow. The "changed" parameter is provided for future optimization 4687 // to avoid the slowness. It is not simply enough to process just "changed", for 4688 // example in the case where "changed"'s score decreases and another network should begin 4689 // satifying a NetworkRequest that "changed" currently satisfies. 4690 4691 // Optimization: Only reprocess "changed" if its score improved. This is safe because it 4692 // can only add more NetworkRequests satisfied by "changed", and this is exactly what 4693 // rematchNetworkAndRequests() handles. 4694 if (changed != null && oldScore < changed.getCurrentScore()) { 4695 rematchNetworkAndRequests(changed); 4696 } else { 4697 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 4698 rematchNetworkAndRequests(nai); 4699 } 4700 } 4701 } 4702 4703 private void updateInetCondition(NetworkAgentInfo nai, boolean valid) { 4704 // Don't bother updating until we've graduated to validated at least once. 4705 if (!nai.validated) return; 4706 // For now only update icons for default connection. 4707 // TODO: Update WiFi and cellular icons separately. b/17237507 4708 if (!isDefaultNetwork(nai)) return; 4709 4710 int newInetCondition = valid ? 100 : 0; 4711 // Don't repeat publish. 4712 if (newInetCondition == mDefaultInetConditionPublished) return; 4713 4714 mDefaultInetConditionPublished = newInetCondition; 4715 sendInetConditionBroadcast(nai.networkInfo); 4716 } 4717 4718 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 4719 NetworkInfo.State state = newInfo.getState(); 4720 NetworkInfo oldInfo = null; 4721 synchronized (networkAgent) { 4722 oldInfo = networkAgent.networkInfo; 4723 networkAgent.networkInfo = newInfo; 4724 } 4725 if (networkAgent.isVPN() && mLockdownTracker != null) { 4726 mLockdownTracker.onVpnStateChanged(newInfo); 4727 } 4728 4729 if (oldInfo != null && oldInfo.getState() == state) { 4730 if (VDBG) log("ignoring duplicate network state non-change"); 4731 return; 4732 } 4733 if (DBG) { 4734 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 4735 (oldInfo == null ? "null" : oldInfo.getState()) + 4736 " to " + state); 4737 } 4738 4739 if (state == NetworkInfo.State.CONNECTED && !networkAgent.created) { 4740 try { 4741 // This should never fail. Specifying an already in use NetID will cause failure. 4742 if (networkAgent.isVPN()) { 4743 mNetd.createVirtualNetwork(networkAgent.network.netId, 4744 !networkAgent.linkProperties.getDnsServers().isEmpty(), 4745 (networkAgent.networkMisc == null || 4746 !networkAgent.networkMisc.allowBypass)); 4747 } else { 4748 mNetd.createPhysicalNetwork(networkAgent.network.netId); 4749 } 4750 } catch (Exception e) { 4751 loge("Error creating network " + networkAgent.network.netId + ": " 4752 + e.getMessage()); 4753 return; 4754 } 4755 networkAgent.created = true; 4756 updateLinkProperties(networkAgent, null); 4757 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 4758 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 4759 if (networkAgent.isVPN()) { 4760 // Temporarily disable the default proxy (not global). 4761 synchronized (mProxyLock) { 4762 if (!mDefaultProxyDisabled) { 4763 mDefaultProxyDisabled = true; 4764 if (mGlobalProxy == null && mDefaultProxy != null) { 4765 sendProxyBroadcast(null); 4766 } 4767 } 4768 } 4769 // TODO: support proxy per network. 4770 } 4771 // Consider network even though it is not yet validated. 4772 // TODO: All the if-statement conditions can be removed now that validation only confers 4773 // a score increase. 4774 if (mNetworkForRequestId.get(mDefaultRequest.requestId) == null && 4775 networkAgent.isVPN() == false && 4776 mDefaultRequest.networkCapabilities.satisfiedByNetworkCapabilities( 4777 networkAgent.networkCapabilities)) { 4778 rematchNetworkAndRequests(networkAgent); 4779 } 4780 } else if (state == NetworkInfo.State.DISCONNECTED || 4781 state == NetworkInfo.State.SUSPENDED) { 4782 networkAgent.asyncChannel.disconnect(); 4783 if (networkAgent.isVPN()) { 4784 synchronized (mProxyLock) { 4785 if (mDefaultProxyDisabled) { 4786 mDefaultProxyDisabled = false; 4787 if (mGlobalProxy == null && mDefaultProxy != null) { 4788 sendProxyBroadcast(mDefaultProxy); 4789 } 4790 } 4791 } 4792 } 4793 } 4794 } 4795 4796 private void updateNetworkScore(NetworkAgentInfo nai, int score) { 4797 if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); 4798 if (score < 0) { 4799 loge("updateNetworkScore for " + nai.name() + " got a negative score (" + score + 4800 "). Bumping score to min of 0"); 4801 score = 0; 4802 } 4803 4804 final int oldScore = nai.getCurrentScore(); 4805 nai.setCurrentScore(score); 4806 4807 if (nai.created) rematchAllNetworksAndRequests(nai, oldScore); 4808 4809 for (int i = 0; i < nai.networkRequests.size(); i++) { 4810 NetworkRequest nr = nai.networkRequests.valueAt(i); 4811 // Don't send listening requests to factories. b/17393458 4812 if (mNetworkRequests.get(nr).isRequest == false) continue; 4813 sendUpdatedScoreToFactories(nr, score); 4814 } 4815 } 4816 4817 // notify only this one new request of the current state 4818 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 4819 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 4820 // TODO - read state from monitor to decide what to send. 4821// if (nai.networkMonitor.isLingering()) { 4822// notifyType = NetworkCallbacks.LOSING; 4823// } else if (nai.networkMonitor.isEvaluating()) { 4824// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 4825// } 4826 callCallbackForRequest(nri, nai, notifyType); 4827 } 4828 4829 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 4830 // The NetworkInfo we actually send out has no bearing on the real 4831 // state of affairs. For example, if the default connection is mobile, 4832 // and a request for HIPRI has just gone away, we need to pretend that 4833 // HIPRI has just disconnected. So we need to set the type to HIPRI and 4834 // the state to DISCONNECTED, even though the network is of type MOBILE 4835 // and is still connected. 4836 NetworkInfo info = new NetworkInfo(nai.networkInfo); 4837 info.setType(type); 4838 if (connected) { 4839 info.setDetailedState(DetailedState.CONNECTED, null, info.getExtraInfo()); 4840 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 4841 } else { 4842 info.setDetailedState(DetailedState.DISCONNECTED, null, info.getExtraInfo()); 4843 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 4844 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 4845 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 4846 if (info.isFailover()) { 4847 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 4848 nai.networkInfo.setFailover(false); 4849 } 4850 if (info.getReason() != null) { 4851 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 4852 } 4853 if (info.getExtraInfo() != null) { 4854 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 4855 } 4856 NetworkAgentInfo newDefaultAgent = null; 4857 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 4858 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 4859 if (newDefaultAgent != null) { 4860 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 4861 newDefaultAgent.networkInfo); 4862 } else { 4863 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 4864 } 4865 } 4866 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 4867 mDefaultInetConditionPublished); 4868 final Intent immediateIntent = new Intent(intent); 4869 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 4870 sendStickyBroadcast(immediateIntent); 4871 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 4872 if (newDefaultAgent != null) { 4873 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 4874 getConnectivityChangeDelay()); 4875 } 4876 } 4877 } 4878 4879 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 4880 if (DBG) log("notifyType " + notifyTypeToName(notifyType) + " for " + networkAgent.name()); 4881 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 4882 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 4883 NetworkRequestInfo nri = mNetworkRequests.get(nr); 4884 if (VDBG) log(" sending notification for " + nr); 4885 callCallbackForRequest(nri, networkAgent, notifyType); 4886 } 4887 } 4888 4889 private String notifyTypeToName(int notifyType) { 4890 switch (notifyType) { 4891 case ConnectivityManager.CALLBACK_PRECHECK: return "PRECHECK"; 4892 case ConnectivityManager.CALLBACK_AVAILABLE: return "AVAILABLE"; 4893 case ConnectivityManager.CALLBACK_LOSING: return "LOSING"; 4894 case ConnectivityManager.CALLBACK_LOST: return "LOST"; 4895 case ConnectivityManager.CALLBACK_UNAVAIL: return "UNAVAILABLE"; 4896 case ConnectivityManager.CALLBACK_CAP_CHANGED: return "CAP_CHANGED"; 4897 case ConnectivityManager.CALLBACK_IP_CHANGED: return "IP_CHANGED"; 4898 case ConnectivityManager.CALLBACK_RELEASED: return "RELEASED"; 4899 } 4900 return "UNKNOWN"; 4901 } 4902 4903 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 4904 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4905 if (nai != null) { 4906 synchronized (nai) { 4907 return new LinkProperties(nai.linkProperties); 4908 } 4909 } 4910 return new LinkProperties(); 4911 } 4912 4913 private NetworkInfo getNetworkInfoForType(int networkType) { 4914 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 4915 return null; 4916 4917 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4918 if (nai != null) { 4919 NetworkInfo result = new NetworkInfo(nai.networkInfo); 4920 result.setType(networkType); 4921 return result; 4922 } else { 4923 NetworkInfo result = new NetworkInfo( 4924 networkType, 0, ConnectivityManager.getNetworkTypeName(networkType), ""); 4925 result.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, null, null); 4926 return result; 4927 } 4928 } 4929 4930 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 4931 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4932 if (nai != null) { 4933 synchronized (nai) { 4934 return new NetworkCapabilities(nai.networkCapabilities); 4935 } 4936 } 4937 return new NetworkCapabilities(); 4938 } 4939 4940 @Override 4941 public boolean addVpnAddress(String address, int prefixLength) { 4942 throwIfLockdownEnabled(); 4943 int user = UserHandle.getUserId(Binder.getCallingUid()); 4944 synchronized (mVpns) { 4945 return mVpns.get(user).addAddress(address, prefixLength); 4946 } 4947 } 4948 4949 @Override 4950 public boolean removeVpnAddress(String address, int prefixLength) { 4951 throwIfLockdownEnabled(); 4952 int user = UserHandle.getUserId(Binder.getCallingUid()); 4953 synchronized (mVpns) { 4954 return mVpns.get(user).removeAddress(address, prefixLength); 4955 } 4956 } 4957} 4958