ConnectivityService.java revision 74971c75dcdfacdf49f110c2104f20e704bffdcb
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server; 18 19import static android.Manifest.permission.MANAGE_NETWORK_POLICY; 20import static android.Manifest.permission.RECEIVE_DATA_ACTIVITY_CHANGE; 21import static android.net.ConnectivityManager.CONNECTIVITY_ACTION; 22import static android.net.ConnectivityManager.CONNECTIVITY_ACTION_IMMEDIATE; 23import static android.net.ConnectivityManager.TYPE_BLUETOOTH; 24import static android.net.ConnectivityManager.TYPE_DUMMY; 25import static android.net.ConnectivityManager.TYPE_MOBILE; 26import static android.net.ConnectivityManager.TYPE_MOBILE_MMS; 27import static android.net.ConnectivityManager.TYPE_MOBILE_SUPL; 28import static android.net.ConnectivityManager.TYPE_MOBILE_DUN; 29import static android.net.ConnectivityManager.TYPE_MOBILE_FOTA; 30import static android.net.ConnectivityManager.TYPE_MOBILE_IMS; 31import static android.net.ConnectivityManager.TYPE_MOBILE_CBS; 32import static android.net.ConnectivityManager.TYPE_MOBILE_IA; 33import static android.net.ConnectivityManager.TYPE_MOBILE_HIPRI; 34import static android.net.ConnectivityManager.TYPE_NONE; 35import static android.net.ConnectivityManager.TYPE_WIFI; 36import static android.net.ConnectivityManager.TYPE_WIMAX; 37import static android.net.ConnectivityManager.TYPE_PROXY; 38import static android.net.ConnectivityManager.getNetworkTypeName; 39import static android.net.ConnectivityManager.isNetworkTypeValid; 40import static android.net.NetworkPolicyManager.RULE_ALLOW_ALL; 41import static android.net.NetworkPolicyManager.RULE_REJECT_METERED; 42 43import android.app.AlarmManager; 44import android.app.Notification; 45import android.app.NotificationManager; 46import android.app.PendingIntent; 47import android.content.ActivityNotFoundException; 48import android.content.BroadcastReceiver; 49import android.content.ContentResolver; 50import android.content.Context; 51import android.content.ContextWrapper; 52import android.content.Intent; 53import android.content.IntentFilter; 54import android.content.pm.PackageManager; 55import android.content.res.Configuration; 56import android.content.res.Resources; 57import android.database.ContentObserver; 58import android.net.ConnectivityManager; 59import android.net.IConnectivityManager; 60import android.net.INetworkManagementEventObserver; 61import android.net.INetworkPolicyListener; 62import android.net.INetworkPolicyManager; 63import android.net.INetworkStatsService; 64import android.net.LinkAddress; 65import android.net.LinkProperties; 66import android.net.LinkProperties.CompareResult; 67import android.net.LinkQualityInfo; 68import android.net.MobileDataStateTracker; 69import android.net.Network; 70import android.net.NetworkAgent; 71import android.net.NetworkCapabilities; 72import android.net.NetworkConfig; 73import android.net.NetworkInfo; 74import android.net.NetworkInfo.DetailedState; 75import android.net.NetworkFactory; 76import android.net.NetworkMisc; 77import android.net.NetworkQuotaInfo; 78import android.net.NetworkRequest; 79import android.net.NetworkState; 80import android.net.NetworkStateTracker; 81import android.net.NetworkUtils; 82import android.net.Proxy; 83import android.net.ProxyDataTracker; 84import android.net.ProxyInfo; 85import android.net.RouteInfo; 86import android.net.SamplingDataTracker; 87import android.net.UidRange; 88import android.net.Uri; 89import android.net.wimax.WimaxManagerConstants; 90import android.os.AsyncTask; 91import android.os.Binder; 92import android.os.Build; 93import android.os.FileUtils; 94import android.os.Handler; 95import android.os.HandlerThread; 96import android.os.IBinder; 97import android.os.INetworkManagementService; 98import android.os.Looper; 99import android.os.Message; 100import android.os.Messenger; 101import android.os.ParcelFileDescriptor; 102import android.os.PowerManager; 103import android.os.Process; 104import android.os.RemoteException; 105import android.os.ServiceManager; 106import android.os.SystemClock; 107import android.os.SystemProperties; 108import android.os.UserHandle; 109import android.os.UserManager; 110import android.provider.Settings; 111import android.security.Credentials; 112import android.security.KeyStore; 113import android.telephony.TelephonyManager; 114import android.text.TextUtils; 115import android.util.Slog; 116import android.util.SparseArray; 117import android.util.SparseIntArray; 118import android.util.Xml; 119 120import com.android.internal.R; 121import com.android.internal.annotations.GuardedBy; 122import com.android.internal.app.IBatteryStats; 123import com.android.internal.net.LegacyVpnInfo; 124import com.android.internal.net.NetworkStatsFactory; 125import com.android.internal.net.VpnConfig; 126import com.android.internal.net.VpnProfile; 127import com.android.internal.telephony.DctConstants; 128import com.android.internal.telephony.Phone; 129import com.android.internal.telephony.PhoneConstants; 130import com.android.internal.telephony.TelephonyIntents; 131import com.android.internal.util.AsyncChannel; 132import com.android.internal.util.IndentingPrintWriter; 133import com.android.internal.util.XmlUtils; 134import com.android.server.am.BatteryStatsService; 135import com.android.server.connectivity.DataConnectionStats; 136import com.android.server.connectivity.Nat464Xlat; 137import com.android.server.connectivity.NetworkAgentInfo; 138import com.android.server.connectivity.NetworkMonitor; 139import com.android.server.connectivity.PacManager; 140import com.android.server.connectivity.Tethering; 141import com.android.server.connectivity.Vpn; 142import com.android.server.net.BaseNetworkObserver; 143import com.android.server.net.LockdownVpnTracker; 144import com.google.android.collect.Lists; 145import com.google.android.collect.Sets; 146 147import dalvik.system.DexClassLoader; 148 149import org.xmlpull.v1.XmlPullParser; 150import org.xmlpull.v1.XmlPullParserException; 151 152import java.io.File; 153import java.io.FileDescriptor; 154import java.io.FileNotFoundException; 155import java.io.FileReader; 156import java.io.IOException; 157import java.io.PrintWriter; 158import java.lang.reflect.Constructor; 159import java.net.HttpURLConnection; 160import java.net.Inet4Address; 161import java.net.Inet6Address; 162import java.net.InetAddress; 163import java.net.URL; 164import java.net.UnknownHostException; 165import java.util.ArrayList; 166import java.util.Arrays; 167import java.util.Collection; 168import java.util.GregorianCalendar; 169import java.util.HashMap; 170import java.util.HashSet; 171import java.util.List; 172import java.util.Map; 173import java.util.Random; 174import java.util.concurrent.atomic.AtomicBoolean; 175import java.util.concurrent.atomic.AtomicInteger; 176 177import javax.net.ssl.HostnameVerifier; 178import javax.net.ssl.HttpsURLConnection; 179import javax.net.ssl.SSLSession; 180 181/** 182 * @hide 183 */ 184public class ConnectivityService extends IConnectivityManager.Stub { 185 private static final String TAG = "ConnectivityService"; 186 187 private static final boolean DBG = true; 188 private static final boolean VDBG = false; 189 190 // network sampling debugging 191 private static final boolean SAMPLE_DBG = false; 192 193 private static final boolean LOGD_RULES = false; 194 195 // TODO: create better separation between radio types and network types 196 197 // how long to wait before switching back to a radio's default network 198 private static final int RESTORE_DEFAULT_NETWORK_DELAY = 1 * 60 * 1000; 199 // system property that can override the above value 200 private static final String NETWORK_RESTORE_DELAY_PROP_NAME = 201 "android.telephony.apn-restore"; 202 203 // Default value if FAIL_FAST_TIME_MS is not set 204 private static final int DEFAULT_FAIL_FAST_TIME_MS = 1 * 60 * 1000; 205 // system property that can override DEFAULT_FAIL_FAST_TIME_MS 206 private static final String FAIL_FAST_TIME_MS = 207 "persist.radio.fail_fast_time_ms"; 208 209 private static final String ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED = 210 "android.net.ConnectivityService.action.PKT_CNT_SAMPLE_INTERVAL_ELAPSED"; 211 212 private static final int SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE = 0; 213 214 private PendingIntent mSampleIntervalElapsedIntent; 215 216 // Set network sampling interval at 12 minutes, this way, even if the timers get 217 // aggregated, it will fire at around 15 minutes, which should allow us to 218 // aggregate this timer with other timers (specially the socket keep alive timers) 219 private static final int DEFAULT_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 12 * 60); 220 221 // start network sampling a minute after booting ... 222 private static final int DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 60); 223 224 AlarmManager mAlarmManager; 225 226 private Tethering mTethering; 227 228 private KeyStore mKeyStore; 229 230 @GuardedBy("mVpns") 231 private final SparseArray<Vpn> mVpns = new SparseArray<Vpn>(); 232 233 private boolean mLockdownEnabled; 234 private LockdownVpnTracker mLockdownTracker; 235 236 private Nat464Xlat mClat; 237 238 /** Lock around {@link #mUidRules} and {@link #mMeteredIfaces}. */ 239 private Object mRulesLock = new Object(); 240 /** Currently active network rules by UID. */ 241 private SparseIntArray mUidRules = new SparseIntArray(); 242 /** Set of ifaces that are costly. */ 243 private HashSet<String> mMeteredIfaces = Sets.newHashSet(); 244 245 /** 246 * Sometimes we want to refer to the individual network state 247 * trackers separately, and sometimes we just want to treat them 248 * abstractly. 249 */ 250 private NetworkStateTracker mNetTrackers[]; 251 252 private Context mContext; 253 private int mNetworkPreference; 254 private int mActiveDefaultNetwork = TYPE_NONE; 255 // 0 is full bad, 100 is full good 256 private int mDefaultInetConditionPublished = 0; 257 258 private Object mDnsLock = new Object(); 259 private int mNumDnsEntries; 260 261 private boolean mTestMode; 262 private static ConnectivityService sServiceInstance; 263 264 private INetworkManagementService mNetd; 265 private INetworkPolicyManager mPolicyManager; 266 267 private String mCurrentTcpBufferSizes; 268 269 private static final int ENABLED = 1; 270 private static final int DISABLED = 0; 271 272 /** 273 * used internally to change our mobile data enabled flag 274 */ 275 private static final int EVENT_CHANGE_MOBILE_DATA_ENABLED = 2; 276 277 /** 278 * used internally to clear a wakelock when transitioning 279 * from one net to another. Clear happens when we get a new 280 * network - EVENT_EXPIRE_NET_TRANSITION_WAKELOCK happens 281 * after a timeout if no network is found (typically 1 min). 282 */ 283 private static final int EVENT_CLEAR_NET_TRANSITION_WAKELOCK = 8; 284 285 /** 286 * used internally to reload global proxy settings 287 */ 288 private static final int EVENT_APPLY_GLOBAL_HTTP_PROXY = 9; 289 290 /** 291 * used internally to set external dependency met/unmet 292 * arg1 = ENABLED (met) or DISABLED (unmet) 293 * arg2 = NetworkType 294 */ 295 private static final int EVENT_SET_DEPENDENCY_MET = 10; 296 297 /** 298 * used internally to send a sticky broadcast delayed. 299 */ 300 private static final int EVENT_SEND_STICKY_BROADCAST_INTENT = 11; 301 302 /** 303 * Used internally to 304 * {@link NetworkStateTracker#setPolicyDataEnable(boolean)}. 305 */ 306 private static final int EVENT_SET_POLICY_DATA_ENABLE = 12; 307 308 /** 309 * Used internally to disable fail fast of mobile data 310 */ 311 private static final int EVENT_ENABLE_FAIL_FAST_MOBILE_DATA = 14; 312 313 /** 314 * used internally to indicate that data sampling interval is up 315 */ 316 private static final int EVENT_SAMPLE_INTERVAL_ELAPSED = 15; 317 318 /** 319 * PAC manager has received new port. 320 */ 321 private static final int EVENT_PROXY_HAS_CHANGED = 16; 322 323 /** 324 * used internally when registering NetworkFactories 325 * obj = NetworkFactoryInfo 326 */ 327 private static final int EVENT_REGISTER_NETWORK_FACTORY = 17; 328 329 /** 330 * used internally when registering NetworkAgents 331 * obj = Messenger 332 */ 333 private static final int EVENT_REGISTER_NETWORK_AGENT = 18; 334 335 /** 336 * used to add a network request 337 * includes a NetworkRequestInfo 338 */ 339 private static final int EVENT_REGISTER_NETWORK_REQUEST = 19; 340 341 /** 342 * indicates a timeout period is over - check if we had a network yet or not 343 * and if not, call the timeout calback (but leave the request live until they 344 * cancel it. 345 * includes a NetworkRequestInfo 346 */ 347 private static final int EVENT_TIMEOUT_NETWORK_REQUEST = 20; 348 349 /** 350 * used to add a network listener - no request 351 * includes a NetworkRequestInfo 352 */ 353 private static final int EVENT_REGISTER_NETWORK_LISTENER = 21; 354 355 /** 356 * used to remove a network request, either a listener or a real request 357 * arg1 = UID of caller 358 * obj = NetworkRequest 359 */ 360 private static final int EVENT_RELEASE_NETWORK_REQUEST = 22; 361 362 /** 363 * used internally when registering NetworkFactories 364 * obj = Messenger 365 */ 366 private static final int EVENT_UNREGISTER_NETWORK_FACTORY = 23; 367 368 /** 369 * used internally to expire a wakelock when transitioning 370 * from one net to another. Expire happens when we fail to find 371 * a new network (typically after 1 minute) - 372 * EVENT_CLEAR_NET_TRANSITION_WAKELOCK happens if we had found 373 * a replacement network. 374 */ 375 private static final int EVENT_EXPIRE_NET_TRANSITION_WAKELOCK = 24; 376 377 /** 378 * Used internally to indicate the system is ready. 379 */ 380 private static final int EVENT_SYSTEM_READY = 25; 381 382 383 /** Handler used for internal events. */ 384 final private InternalHandler mHandler; 385 /** Handler used for incoming {@link NetworkStateTracker} events. */ 386 final private NetworkStateTrackerHandler mTrackerHandler; 387 388 private boolean mSystemReady; 389 private Intent mInitialBroadcast; 390 391 private PowerManager.WakeLock mNetTransitionWakeLock; 392 private String mNetTransitionWakeLockCausedBy = ""; 393 private int mNetTransitionWakeLockSerialNumber; 394 private int mNetTransitionWakeLockTimeout; 395 396 private InetAddress mDefaultDns; 397 398 // used in DBG mode to track inet condition reports 399 private static final int INET_CONDITION_LOG_MAX_SIZE = 15; 400 private ArrayList mInetLog; 401 402 // track the current default http proxy - tell the world if we get a new one (real change) 403 private ProxyInfo mDefaultProxy = null; 404 private Object mProxyLock = new Object(); 405 private boolean mDefaultProxyDisabled = false; 406 407 // track the global proxy. 408 private ProxyInfo mGlobalProxy = null; 409 410 private PacManager mPacManager = null; 411 412 private SettingsObserver mSettingsObserver; 413 414 private UserManager mUserManager; 415 416 NetworkConfig[] mNetConfigs; 417 int mNetworksDefined; 418 419 // the set of network types that can only be enabled by system/sig apps 420 List mProtectedNetworks; 421 422 private DataConnectionStats mDataConnectionStats; 423 424 private AtomicInteger mEnableFailFastMobileDataTag = new AtomicInteger(0); 425 426 TelephonyManager mTelephonyManager; 427 428 // sequence number for Networks; keep in sync with system/netd/NetworkController.cpp 429 private final static int MIN_NET_ID = 100; // some reserved marks 430 private final static int MAX_NET_ID = 65535; 431 private int mNextNetId = MIN_NET_ID; 432 433 // sequence number of NetworkRequests 434 private int mNextNetworkRequestId = 1; 435 436 /** 437 * Implements support for the legacy "one network per network type" model. 438 * 439 * We used to have a static array of NetworkStateTrackers, one for each 440 * network type, but that doesn't work any more now that we can have, 441 * for example, more that one wifi network. This class stores all the 442 * NetworkAgentInfo objects that support a given type, but the legacy 443 * API will only see the first one. 444 * 445 * It serves two main purposes: 446 * 447 * 1. Provide information about "the network for a given type" (since this 448 * API only supports one). 449 * 2. Send legacy connectivity change broadcasts. Broadcasts are sent if 450 * the first network for a given type changes, or if the default network 451 * changes. 452 */ 453 private class LegacyTypeTracker { 454 455 private static final boolean DBG = true; 456 private static final boolean VDBG = false; 457 private static final String TAG = "CSLegacyTypeTracker"; 458 459 /** 460 * Array of lists, one per legacy network type (e.g., TYPE_MOBILE_MMS). 461 * Each list holds references to all NetworkAgentInfos that are used to 462 * satisfy requests for that network type. 463 * 464 * This array is built out at startup such that an unsupported network 465 * doesn't get an ArrayList instance, making this a tristate: 466 * unsupported, supported but not active and active. 467 * 468 * The actual lists are populated when we scan the network types that 469 * are supported on this device. 470 */ 471 private ArrayList<NetworkAgentInfo> mTypeLists[]; 472 473 public LegacyTypeTracker() { 474 mTypeLists = (ArrayList<NetworkAgentInfo>[]) 475 new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE + 1]; 476 } 477 478 public void addSupportedType(int type) { 479 if (mTypeLists[type] != null) { 480 throw new IllegalStateException( 481 "legacy list for type " + type + "already initialized"); 482 } 483 mTypeLists[type] = new ArrayList<NetworkAgentInfo>(); 484 } 485 486 public boolean isTypeSupported(int type) { 487 return isNetworkTypeValid(type) && mTypeLists[type] != null; 488 } 489 490 public NetworkAgentInfo getNetworkForType(int type) { 491 if (isTypeSupported(type) && !mTypeLists[type].isEmpty()) { 492 return mTypeLists[type].get(0); 493 } else { 494 return null; 495 } 496 } 497 498 private void maybeLogBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 499 if (DBG) { 500 log("Sending " + (connected ? "connected" : "disconnected") + 501 " broadcast for type " + type + " " + nai.name() + 502 " isDefaultNetwork=" + isDefaultNetwork(nai)); 503 } 504 } 505 506 /** Adds the given network to the specified legacy type list. */ 507 public void add(int type, NetworkAgentInfo nai) { 508 if (!isTypeSupported(type)) { 509 return; // Invalid network type. 510 } 511 if (VDBG) log("Adding agent " + nai + " for legacy network type " + type); 512 513 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 514 if (list.contains(nai)) { 515 loge("Attempting to register duplicate agent for type " + type + ": " + nai); 516 return; 517 } 518 519 if (list.isEmpty() || isDefaultNetwork(nai)) { 520 maybeLogBroadcast(nai, true, type); 521 sendLegacyNetworkBroadcast(nai, true, type); 522 } 523 list.add(nai); 524 } 525 526 /** Removes the given network from the specified legacy type list. */ 527 public void remove(int type, NetworkAgentInfo nai) { 528 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 529 if (list == null || list.isEmpty()) { 530 return; 531 } 532 533 boolean wasFirstNetwork = list.get(0).equals(nai); 534 535 if (!list.remove(nai)) { 536 return; 537 } 538 539 if (wasFirstNetwork || isDefaultNetwork(nai)) { 540 maybeLogBroadcast(nai, false, type); 541 sendLegacyNetworkBroadcast(nai, false, type); 542 } 543 544 if (!list.isEmpty() && wasFirstNetwork) { 545 if (DBG) log("Other network available for type " + type + 546 ", sending connected broadcast"); 547 maybeLogBroadcast(list.get(0), false, type); 548 sendLegacyNetworkBroadcast(list.get(0), false, type); 549 } 550 } 551 552 /** Removes the given network from all legacy type lists. */ 553 public void remove(NetworkAgentInfo nai) { 554 if (VDBG) log("Removing agent " + nai); 555 for (int type = 0; type < mTypeLists.length; type++) { 556 remove(type, nai); 557 } 558 } 559 560 private String naiToString(NetworkAgentInfo nai) { 561 String name = (nai != null) ? nai.name() : "null"; 562 String state = (nai.networkInfo != null) ? 563 nai.networkInfo.getState() + "/" + nai.networkInfo.getDetailedState() : 564 "???/???"; 565 return name + " " + state; 566 } 567 568 public void dump(IndentingPrintWriter pw) { 569 for (int type = 0; type < mTypeLists.length; type++) { 570 if (mTypeLists[type] == null) continue; 571 pw.print(type + " "); 572 pw.increaseIndent(); 573 if (mTypeLists[type].size() == 0) pw.println("none"); 574 for (NetworkAgentInfo nai : mTypeLists[type]) { 575 pw.println(naiToString(nai)); 576 } 577 pw.decreaseIndent(); 578 } 579 } 580 581 // This class needs its own log method because it has a different TAG. 582 private void log(String s) { 583 Slog.d(TAG, s); 584 } 585 586 } 587 private LegacyTypeTracker mLegacyTypeTracker = new LegacyTypeTracker(); 588 589 public ConnectivityService(Context context, INetworkManagementService netManager, 590 INetworkStatsService statsService, INetworkPolicyManager policyManager) { 591 if (DBG) log("ConnectivityService starting up"); 592 593 NetworkCapabilities netCap = new NetworkCapabilities(); 594 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 595 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 596 mDefaultRequest = new NetworkRequest(netCap, TYPE_NONE, nextNetworkRequestId()); 597 NetworkRequestInfo nri = new NetworkRequestInfo(null, mDefaultRequest, new Binder(), 598 NetworkRequestInfo.REQUEST); 599 mNetworkRequests.put(mDefaultRequest, nri); 600 601 HandlerThread handlerThread = new HandlerThread("ConnectivityServiceThread"); 602 handlerThread.start(); 603 mHandler = new InternalHandler(handlerThread.getLooper()); 604 mTrackerHandler = new NetworkStateTrackerHandler(handlerThread.getLooper()); 605 606 // setup our unique device name 607 if (TextUtils.isEmpty(SystemProperties.get("net.hostname"))) { 608 String id = Settings.Secure.getString(context.getContentResolver(), 609 Settings.Secure.ANDROID_ID); 610 if (id != null && id.length() > 0) { 611 String name = new String("android-").concat(id); 612 SystemProperties.set("net.hostname", name); 613 } 614 } 615 616 // read our default dns server ip 617 String dns = Settings.Global.getString(context.getContentResolver(), 618 Settings.Global.DEFAULT_DNS_SERVER); 619 if (dns == null || dns.length() == 0) { 620 dns = context.getResources().getString( 621 com.android.internal.R.string.config_default_dns_server); 622 } 623 try { 624 mDefaultDns = NetworkUtils.numericToInetAddress(dns); 625 } catch (IllegalArgumentException e) { 626 loge("Error setting defaultDns using " + dns); 627 } 628 629 mContext = checkNotNull(context, "missing Context"); 630 mNetd = checkNotNull(netManager, "missing INetworkManagementService"); 631 mPolicyManager = checkNotNull(policyManager, "missing INetworkPolicyManager"); 632 mKeyStore = KeyStore.getInstance(); 633 mTelephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 634 635 try { 636 mPolicyManager.registerListener(mPolicyListener); 637 } catch (RemoteException e) { 638 // ouch, no rules updates means some processes may never get network 639 loge("unable to register INetworkPolicyListener" + e.toString()); 640 } 641 642 final PowerManager powerManager = (PowerManager) context.getSystemService( 643 Context.POWER_SERVICE); 644 mNetTransitionWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); 645 mNetTransitionWakeLockTimeout = mContext.getResources().getInteger( 646 com.android.internal.R.integer.config_networkTransitionTimeout); 647 648 mNetTrackers = new NetworkStateTracker[ 649 ConnectivityManager.MAX_NETWORK_TYPE+1]; 650 651 mNetConfigs = new NetworkConfig[ConnectivityManager.MAX_NETWORK_TYPE+1]; 652 653 // TODO: What is the "correct" way to do determine if this is a wifi only device? 654 boolean wifiOnly = SystemProperties.getBoolean("ro.radio.noril", false); 655 log("wifiOnly=" + wifiOnly); 656 String[] naStrings = context.getResources().getStringArray( 657 com.android.internal.R.array.networkAttributes); 658 for (String naString : naStrings) { 659 try { 660 NetworkConfig n = new NetworkConfig(naString); 661 if (VDBG) log("naString=" + naString + " config=" + n); 662 if (n.type > ConnectivityManager.MAX_NETWORK_TYPE) { 663 loge("Error in networkAttributes - ignoring attempt to define type " + 664 n.type); 665 continue; 666 } 667 if (wifiOnly && ConnectivityManager.isNetworkTypeMobile(n.type)) { 668 log("networkAttributes - ignoring mobile as this dev is wifiOnly " + 669 n.type); 670 continue; 671 } 672 if (mNetConfigs[n.type] != null) { 673 loge("Error in networkAttributes - ignoring attempt to redefine type " + 674 n.type); 675 continue; 676 } 677 mLegacyTypeTracker.addSupportedType(n.type); 678 679 mNetConfigs[n.type] = n; 680 mNetworksDefined++; 681 } catch(Exception e) { 682 // ignore it - leave the entry null 683 } 684 } 685 if (VDBG) log("mNetworksDefined=" + mNetworksDefined); 686 687 mProtectedNetworks = new ArrayList<Integer>(); 688 int[] protectedNetworks = context.getResources().getIntArray( 689 com.android.internal.R.array.config_protectedNetworks); 690 for (int p : protectedNetworks) { 691 if ((mNetConfigs[p] != null) && (mProtectedNetworks.contains(p) == false)) { 692 mProtectedNetworks.add(p); 693 } else { 694 if (DBG) loge("Ignoring protectedNetwork " + p); 695 } 696 } 697 698 mTestMode = SystemProperties.get("cm.test.mode").equals("true") 699 && SystemProperties.get("ro.build.type").equals("eng"); 700 701 mTethering = new Tethering(mContext, mNetd, statsService, mHandler.getLooper()); 702 703 //set up the listener for user state for creating user VPNs 704 IntentFilter intentFilter = new IntentFilter(); 705 intentFilter.addAction(Intent.ACTION_USER_STARTING); 706 intentFilter.addAction(Intent.ACTION_USER_STOPPING); 707 mContext.registerReceiverAsUser( 708 mUserIntentReceiver, UserHandle.ALL, intentFilter, null, null); 709 mClat = new Nat464Xlat(mContext, mNetd, this, mTrackerHandler); 710 711 try { 712 mNetd.registerObserver(mTethering); 713 mNetd.registerObserver(mDataActivityObserver); 714 mNetd.registerObserver(mClat); 715 } catch (RemoteException e) { 716 loge("Error registering observer :" + e); 717 } 718 719 if (DBG) { 720 mInetLog = new ArrayList(); 721 } 722 723 mSettingsObserver = new SettingsObserver(mHandler, EVENT_APPLY_GLOBAL_HTTP_PROXY); 724 mSettingsObserver.observe(mContext); 725 726 mDataConnectionStats = new DataConnectionStats(mContext); 727 mDataConnectionStats.startMonitoring(); 728 729 mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE); 730 731 IntentFilter filter = new IntentFilter(); 732 filter.addAction(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 733 mContext.registerReceiver( 734 new BroadcastReceiver() { 735 @Override 736 public void onReceive(Context context, Intent intent) { 737 String action = intent.getAction(); 738 if (action.equals(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED)) { 739 mHandler.sendMessage(mHandler.obtainMessage 740 (EVENT_SAMPLE_INTERVAL_ELAPSED)); 741 } 742 } 743 }, 744 new IntentFilter(filter)); 745 746 mPacManager = new PacManager(mContext, mHandler, EVENT_PROXY_HAS_CHANGED); 747 748 filter = new IntentFilter(); 749 filter.addAction(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 750 mContext.registerReceiver(mProvisioningReceiver, filter); 751 752 mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); 753 } 754 755 private synchronized int nextNetworkRequestId() { 756 return mNextNetworkRequestId++; 757 } 758 759 private void assignNextNetId(NetworkAgentInfo nai) { 760 synchronized (mNetworkForNetId) { 761 for (int i = MIN_NET_ID; i <= MAX_NET_ID; i++) { 762 int netId = mNextNetId; 763 if (++mNextNetId > MAX_NET_ID) mNextNetId = MIN_NET_ID; 764 // Make sure NetID unused. http://b/16815182 765 if (mNetworkForNetId.get(netId) == null) { 766 nai.network = new Network(netId); 767 mNetworkForNetId.put(netId, nai); 768 return; 769 } 770 } 771 } 772 throw new IllegalStateException("No free netIds"); 773 } 774 775 private int getConnectivityChangeDelay() { 776 final ContentResolver cr = mContext.getContentResolver(); 777 778 /** Check system properties for the default value then use secure settings value, if any. */ 779 int defaultDelay = SystemProperties.getInt( 780 "conn." + Settings.Global.CONNECTIVITY_CHANGE_DELAY, 781 ConnectivityManager.CONNECTIVITY_CHANGE_DELAY_DEFAULT); 782 return Settings.Global.getInt(cr, Settings.Global.CONNECTIVITY_CHANGE_DELAY, 783 defaultDelay); 784 } 785 786 private boolean teardown(NetworkStateTracker netTracker) { 787 if (netTracker.teardown()) { 788 netTracker.setTeardownRequested(true); 789 return true; 790 } else { 791 return false; 792 } 793 } 794 795 /** 796 * Check if UID should be blocked from using the network represented by the given networkType. 797 * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. 798 */ 799 private boolean isNetworkBlocked(int networkType, int uid) { 800 return isNetworkWithLinkPropertiesBlocked(getLinkPropertiesForType(networkType), uid); 801 } 802 803 /** 804 * Check if UID should be blocked from using the network represented by the given 805 * NetworkAgentInfo. 806 */ 807 private boolean isNetworkBlocked(NetworkAgentInfo nai, int uid) { 808 return isNetworkWithLinkPropertiesBlocked(nai.linkProperties, uid); 809 } 810 811 /** 812 * Check if UID should be blocked from using the network with the given LinkProperties. 813 */ 814 private boolean isNetworkWithLinkPropertiesBlocked(LinkProperties lp, int uid) { 815 final boolean networkCostly; 816 final int uidRules; 817 818 final String iface = (lp == null ? "" : lp.getInterfaceName()); 819 synchronized (mRulesLock) { 820 networkCostly = mMeteredIfaces.contains(iface); 821 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 822 } 823 824 if (networkCostly && (uidRules & RULE_REJECT_METERED) != 0) { 825 return true; 826 } 827 828 // no restrictive rules; network is visible 829 return false; 830 } 831 832 /** 833 * Return a filtered {@link NetworkInfo}, potentially marked 834 * {@link DetailedState#BLOCKED} based on 835 * {@link #isNetworkBlocked}. 836 * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. 837 */ 838 private NetworkInfo getFilteredNetworkInfo(int networkType, int uid) { 839 NetworkInfo info = getNetworkInfoForType(networkType); 840 return getFilteredNetworkInfo(info, networkType, uid); 841 } 842 843 /* 844 * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. 845 */ 846 private NetworkInfo getFilteredNetworkInfo(NetworkInfo info, int networkType, int uid) { 847 if (isNetworkBlocked(networkType, uid)) { 848 // network is blocked; clone and override state 849 info = new NetworkInfo(info); 850 info.setDetailedState(DetailedState.BLOCKED, null, null); 851 if (VDBG) log("returning Blocked NetworkInfo"); 852 } 853 if (mLockdownTracker != null) { 854 info = mLockdownTracker.augmentNetworkInfo(info); 855 if (VDBG) log("returning Locked NetworkInfo"); 856 } 857 return info; 858 } 859 860 private NetworkInfo getFilteredNetworkInfo(NetworkAgentInfo nai, int uid) { 861 NetworkInfo info = nai.networkInfo; 862 if (isNetworkBlocked(nai, uid)) { 863 // network is blocked; clone and override state 864 info = new NetworkInfo(info); 865 info.setDetailedState(DetailedState.BLOCKED, null, null); 866 if (DBG) log("returning Blocked NetworkInfo"); 867 } 868 if (mLockdownTracker != null) { 869 info = mLockdownTracker.augmentNetworkInfo(info); 870 if (DBG) log("returning Locked NetworkInfo"); 871 } 872 return info; 873 } 874 875 /** 876 * Return NetworkInfo for the active (i.e., connected) network interface. 877 * It is assumed that at most one network is active at a time. If more 878 * than one is active, it is indeterminate which will be returned. 879 * @return the info for the active network, or {@code null} if none is 880 * active 881 */ 882 @Override 883 public NetworkInfo getActiveNetworkInfo() { 884 enforceAccessPermission(); 885 final int uid = Binder.getCallingUid(); 886 return getNetworkInfo(mActiveDefaultNetwork, uid); 887 } 888 889 /** 890 * Find the first Provisioning network. 891 * 892 * @return NetworkInfo or null if none. 893 */ 894 private NetworkInfo getProvisioningNetworkInfo() { 895 enforceAccessPermission(); 896 897 // Find the first Provisioning Network 898 NetworkInfo provNi = null; 899 for (NetworkInfo ni : getAllNetworkInfo()) { 900 if (ni.isConnectedToProvisioningNetwork()) { 901 provNi = ni; 902 break; 903 } 904 } 905 if (DBG) log("getProvisioningNetworkInfo: X provNi=" + provNi); 906 return provNi; 907 } 908 909 /** 910 * Find the first Provisioning network or the ActiveDefaultNetwork 911 * if there is no Provisioning network 912 * 913 * @return NetworkInfo or null if none. 914 */ 915 @Override 916 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 917 enforceAccessPermission(); 918 919 NetworkInfo provNi = getProvisioningNetworkInfo(); 920 if (provNi == null) { 921 final int uid = Binder.getCallingUid(); 922 provNi = getNetworkInfo(mActiveDefaultNetwork, uid); 923 } 924 if (DBG) log("getProvisioningOrActiveNetworkInfo: X provNi=" + provNi); 925 return provNi; 926 } 927 928 public NetworkInfo getActiveNetworkInfoUnfiltered() { 929 enforceAccessPermission(); 930 if (isNetworkTypeValid(mActiveDefaultNetwork)) { 931 return getNetworkInfoForType(mActiveDefaultNetwork); 932 } 933 return null; 934 } 935 936 @Override 937 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 938 enforceConnectivityInternalPermission(); 939 return getNetworkInfo(mActiveDefaultNetwork, uid); 940 } 941 942 @Override 943 public NetworkInfo getNetworkInfo(int networkType) { 944 enforceAccessPermission(); 945 final int uid = Binder.getCallingUid(); 946 return getNetworkInfo(networkType, uid); 947 } 948 949 private NetworkInfo getNetworkInfo(int networkType, int uid) { 950 NetworkInfo info = null; 951 if (isNetworkTypeValid(networkType)) { 952 if (getNetworkInfoForType(networkType) != null) { 953 info = getFilteredNetworkInfo(networkType, uid); 954 } 955 } 956 return info; 957 } 958 959 @Override 960 public NetworkInfo getNetworkInfoForNetwork(Network network) { 961 enforceAccessPermission(); 962 if (network == null) return null; 963 964 final int uid = Binder.getCallingUid(); 965 NetworkAgentInfo nai = null; 966 synchronized (mNetworkForNetId) { 967 nai = mNetworkForNetId.get(network.netId); 968 } 969 if (nai == null) return null; 970 synchronized (nai) { 971 if (nai.networkInfo == null) return null; 972 973 return getFilteredNetworkInfo(nai, uid); 974 } 975 } 976 977 @Override 978 public NetworkInfo[] getAllNetworkInfo() { 979 enforceAccessPermission(); 980 final int uid = Binder.getCallingUid(); 981 final ArrayList<NetworkInfo> result = Lists.newArrayList(); 982 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 983 networkType++) { 984 if (getNetworkInfoForType(networkType) != null) { 985 result.add(getFilteredNetworkInfo(networkType, uid)); 986 } 987 } 988 return result.toArray(new NetworkInfo[result.size()]); 989 } 990 991 @Override 992 public Network getNetworkForType(int networkType) { 993 enforceAccessPermission(); 994 final int uid = Binder.getCallingUid(); 995 if (isNetworkBlocked(networkType, uid)) { 996 return null; 997 } 998 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 999 return (nai == null) ? null : nai.network; 1000 } 1001 1002 @Override 1003 public Network[] getAllNetworks() { 1004 enforceAccessPermission(); 1005 final ArrayList<Network> result = new ArrayList(); 1006 synchronized (mNetworkForNetId) { 1007 for (int i = 0; i < mNetworkForNetId.size(); i++) { 1008 result.add(new Network(mNetworkForNetId.valueAt(i).network)); 1009 } 1010 } 1011 return result.toArray(new Network[result.size()]); 1012 } 1013 1014 @Override 1015 public boolean isNetworkSupported(int networkType) { 1016 enforceAccessPermission(); 1017 return (isNetworkTypeValid(networkType) && (getNetworkInfoForType(networkType) != null)); 1018 } 1019 1020 /** 1021 * Return LinkProperties for the active (i.e., connected) default 1022 * network interface. It is assumed that at most one default network 1023 * is active at a time. If more than one is active, it is indeterminate 1024 * which will be returned. 1025 * @return the ip properties for the active network, or {@code null} if 1026 * none is active 1027 */ 1028 @Override 1029 public LinkProperties getActiveLinkProperties() { 1030 return getLinkPropertiesForType(mActiveDefaultNetwork); 1031 } 1032 1033 @Override 1034 public LinkProperties getLinkPropertiesForType(int networkType) { 1035 enforceAccessPermission(); 1036 if (isNetworkTypeValid(networkType)) { 1037 return getLinkPropertiesForTypeInternal(networkType); 1038 } 1039 return null; 1040 } 1041 1042 // TODO - this should be ALL networks 1043 @Override 1044 public LinkProperties getLinkProperties(Network network) { 1045 enforceAccessPermission(); 1046 NetworkAgentInfo nai = null; 1047 synchronized (mNetworkForNetId) { 1048 nai = mNetworkForNetId.get(network.netId); 1049 } 1050 1051 if (nai != null) { 1052 synchronized (nai) { 1053 return new LinkProperties(nai.linkProperties); 1054 } 1055 } 1056 return null; 1057 } 1058 1059 @Override 1060 public NetworkCapabilities getNetworkCapabilities(Network network) { 1061 enforceAccessPermission(); 1062 NetworkAgentInfo nai = null; 1063 synchronized (mNetworkForNetId) { 1064 nai = mNetworkForNetId.get(network.netId); 1065 } 1066 if (nai != null) { 1067 synchronized (nai) { 1068 return new NetworkCapabilities(nai.networkCapabilities); 1069 } 1070 } 1071 return null; 1072 } 1073 1074 @Override 1075 public NetworkState[] getAllNetworkState() { 1076 enforceAccessPermission(); 1077 final int uid = Binder.getCallingUid(); 1078 final ArrayList<NetworkState> result = Lists.newArrayList(); 1079 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1080 networkType++) { 1081 if (getNetworkInfoForType(networkType) != null) { 1082 final NetworkInfo info = getFilteredNetworkInfo(networkType, uid); 1083 final LinkProperties lp = getLinkPropertiesForTypeInternal(networkType); 1084 final NetworkCapabilities netcap = getNetworkCapabilitiesForType(networkType); 1085 result.add(new NetworkState(info, lp, netcap)); 1086 } 1087 } 1088 return result.toArray(new NetworkState[result.size()]); 1089 } 1090 1091 private NetworkState getNetworkStateUnchecked(int networkType) { 1092 if (isNetworkTypeValid(networkType)) { 1093 NetworkInfo info = getNetworkInfoForType(networkType); 1094 if (info != null) { 1095 return new NetworkState(info, 1096 getLinkPropertiesForTypeInternal(networkType), 1097 getNetworkCapabilitiesForType(networkType)); 1098 } 1099 } 1100 return null; 1101 } 1102 1103 @Override 1104 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1105 enforceAccessPermission(); 1106 1107 final long token = Binder.clearCallingIdentity(); 1108 try { 1109 final NetworkState state = getNetworkStateUnchecked(mActiveDefaultNetwork); 1110 if (state != null) { 1111 try { 1112 return mPolicyManager.getNetworkQuotaInfo(state); 1113 } catch (RemoteException e) { 1114 } 1115 } 1116 return null; 1117 } finally { 1118 Binder.restoreCallingIdentity(token); 1119 } 1120 } 1121 1122 @Override 1123 public boolean isActiveNetworkMetered() { 1124 enforceAccessPermission(); 1125 final long token = Binder.clearCallingIdentity(); 1126 try { 1127 return isNetworkMeteredUnchecked(mActiveDefaultNetwork); 1128 } finally { 1129 Binder.restoreCallingIdentity(token); 1130 } 1131 } 1132 1133 private boolean isNetworkMeteredUnchecked(int networkType) { 1134 final NetworkState state = getNetworkStateUnchecked(networkType); 1135 if (state != null) { 1136 try { 1137 return mPolicyManager.isNetworkMetered(state); 1138 } catch (RemoteException e) { 1139 } 1140 } 1141 return false; 1142 } 1143 1144 private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { 1145 @Override 1146 public void interfaceClassDataActivityChanged(String label, boolean active, long tsNanos) { 1147 int deviceType = Integer.parseInt(label); 1148 sendDataActivityBroadcast(deviceType, active, tsNanos); 1149 } 1150 }; 1151 1152 /** 1153 * Ensure that a network route exists to deliver traffic to the specified 1154 * host via the specified network interface. 1155 * @param networkType the type of the network over which traffic to the 1156 * specified host is to be routed 1157 * @param hostAddress the IP address of the host to which the route is 1158 * desired 1159 * @return {@code true} on success, {@code false} on failure 1160 */ 1161 public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress) { 1162 enforceChangePermission(); 1163 if (mProtectedNetworks.contains(networkType)) { 1164 enforceConnectivityInternalPermission(); 1165 } 1166 1167 InetAddress addr; 1168 try { 1169 addr = InetAddress.getByAddress(hostAddress); 1170 } catch (UnknownHostException e) { 1171 if (DBG) log("requestRouteToHostAddress got " + e.toString()); 1172 return false; 1173 } 1174 1175 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1176 if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); 1177 return false; 1178 } 1179 1180 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1181 if (nai == null) { 1182 if (mLegacyTypeTracker.isTypeSupported(networkType) == false) { 1183 if (DBG) log("requestRouteToHostAddress on unsupported network: " + networkType); 1184 } else { 1185 if (DBG) log("requestRouteToHostAddress on down network: " + networkType); 1186 } 1187 return false; 1188 } 1189 1190 DetailedState netState; 1191 synchronized (nai) { 1192 netState = nai.networkInfo.getDetailedState(); 1193 } 1194 1195 if (netState != DetailedState.CONNECTED && netState != DetailedState.CAPTIVE_PORTAL_CHECK) { 1196 if (VDBG) { 1197 log("requestRouteToHostAddress on down network " 1198 + "(" + networkType + ") - dropped" 1199 + " netState=" + netState); 1200 } 1201 return false; 1202 } 1203 1204 final int uid = Binder.getCallingUid(); 1205 final long token = Binder.clearCallingIdentity(); 1206 try { 1207 LinkProperties lp; 1208 int netId; 1209 synchronized (nai) { 1210 lp = nai.linkProperties; 1211 netId = nai.network.netId; 1212 } 1213 boolean ok = addLegacyRouteToHost(lp, addr, netId, uid); 1214 if (DBG) log("requestRouteToHostAddress ok=" + ok); 1215 return ok; 1216 } finally { 1217 Binder.restoreCallingIdentity(token); 1218 } 1219 } 1220 1221 private boolean addLegacyRouteToHost(LinkProperties lp, InetAddress addr, int netId, int uid) { 1222 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), addr); 1223 if (bestRoute == null) { 1224 bestRoute = RouteInfo.makeHostRoute(addr, lp.getInterfaceName()); 1225 } else { 1226 String iface = bestRoute.getInterface(); 1227 if (bestRoute.getGateway().equals(addr)) { 1228 // if there is no better route, add the implied hostroute for our gateway 1229 bestRoute = RouteInfo.makeHostRoute(addr, iface); 1230 } else { 1231 // if we will connect to this through another route, add a direct route 1232 // to it's gateway 1233 bestRoute = RouteInfo.makeHostRoute(addr, bestRoute.getGateway(), iface); 1234 } 1235 } 1236 if (DBG) log("Adding " + bestRoute + " for interface " + bestRoute.getInterface()); 1237 try { 1238 mNetd.addLegacyRouteForNetId(netId, bestRoute, uid); 1239 } catch (Exception e) { 1240 // never crash - catch them all 1241 if (DBG) loge("Exception trying to add a route: " + e); 1242 return false; 1243 } 1244 return true; 1245 } 1246 1247 public void setDataDependency(int networkType, boolean met) { 1248 enforceConnectivityInternalPermission(); 1249 1250 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_DEPENDENCY_MET, 1251 (met ? ENABLED : DISABLED), networkType)); 1252 } 1253 1254 private void handleSetDependencyMet(int networkType, boolean met) { 1255 if (mNetTrackers[networkType] != null) { 1256 if (DBG) { 1257 log("handleSetDependencyMet(" + networkType + ", " + met + ")"); 1258 } 1259 mNetTrackers[networkType].setDependencyMet(met); 1260 } 1261 } 1262 1263 private INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() { 1264 @Override 1265 public void onUidRulesChanged(int uid, int uidRules) { 1266 // caller is NPMS, since we only register with them 1267 if (LOGD_RULES) { 1268 log("onUidRulesChanged(uid=" + uid + ", uidRules=" + uidRules + ")"); 1269 } 1270 1271 synchronized (mRulesLock) { 1272 // skip update when we've already applied rules 1273 final int oldRules = mUidRules.get(uid, RULE_ALLOW_ALL); 1274 if (oldRules == uidRules) return; 1275 1276 mUidRules.put(uid, uidRules); 1277 } 1278 1279 // TODO: notify UID when it has requested targeted updates 1280 } 1281 1282 @Override 1283 public void onMeteredIfacesChanged(String[] meteredIfaces) { 1284 // caller is NPMS, since we only register with them 1285 if (LOGD_RULES) { 1286 log("onMeteredIfacesChanged(ifaces=" + Arrays.toString(meteredIfaces) + ")"); 1287 } 1288 1289 synchronized (mRulesLock) { 1290 mMeteredIfaces.clear(); 1291 for (String iface : meteredIfaces) { 1292 mMeteredIfaces.add(iface); 1293 } 1294 } 1295 } 1296 1297 @Override 1298 public void onRestrictBackgroundChanged(boolean restrictBackground) { 1299 // caller is NPMS, since we only register with them 1300 if (LOGD_RULES) { 1301 log("onRestrictBackgroundChanged(restrictBackground=" + restrictBackground + ")"); 1302 } 1303 1304 // kick off connectivity change broadcast for active network, since 1305 // global background policy change is radical. 1306 final int networkType = mActiveDefaultNetwork; 1307 if (isNetworkTypeValid(networkType)) { 1308 final NetworkStateTracker tracker = mNetTrackers[networkType]; 1309 if (tracker != null) { 1310 final NetworkInfo info = tracker.getNetworkInfo(); 1311 if (info != null && info.isConnected()) { 1312 sendConnectedBroadcast(info); 1313 } 1314 } 1315 } 1316 } 1317 }; 1318 1319 @Override 1320 public void setPolicyDataEnable(int networkType, boolean enabled) { 1321 // only someone like NPMS should only be calling us 1322 mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); 1323 1324 mHandler.sendMessage(mHandler.obtainMessage( 1325 EVENT_SET_POLICY_DATA_ENABLE, networkType, (enabled ? ENABLED : DISABLED))); 1326 } 1327 1328 private void handleSetPolicyDataEnable(int networkType, boolean enabled) { 1329 // TODO - handle this passing to factories 1330// if (isNetworkTypeValid(networkType)) { 1331// final NetworkStateTracker tracker = mNetTrackers[networkType]; 1332// if (tracker != null) { 1333// tracker.setPolicyDataEnable(enabled); 1334// } 1335// } 1336 } 1337 1338 private void enforceInternetPermission() { 1339 mContext.enforceCallingOrSelfPermission( 1340 android.Manifest.permission.INTERNET, 1341 "ConnectivityService"); 1342 } 1343 1344 private void enforceAccessPermission() { 1345 mContext.enforceCallingOrSelfPermission( 1346 android.Manifest.permission.ACCESS_NETWORK_STATE, 1347 "ConnectivityService"); 1348 } 1349 1350 private void enforceChangePermission() { 1351 mContext.enforceCallingOrSelfPermission( 1352 android.Manifest.permission.CHANGE_NETWORK_STATE, 1353 "ConnectivityService"); 1354 } 1355 1356 private void enforceTetherAccessPermission() { 1357 mContext.enforceCallingOrSelfPermission( 1358 android.Manifest.permission.ACCESS_NETWORK_STATE, 1359 "ConnectivityService"); 1360 } 1361 1362 private void enforceConnectivityInternalPermission() { 1363 mContext.enforceCallingOrSelfPermission( 1364 android.Manifest.permission.CONNECTIVITY_INTERNAL, 1365 "ConnectivityService"); 1366 } 1367 1368 public void sendConnectedBroadcast(NetworkInfo info) { 1369 enforceConnectivityInternalPermission(); 1370 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1371 sendGeneralBroadcast(info, CONNECTIVITY_ACTION); 1372 } 1373 1374 private void sendConnectedBroadcastDelayed(NetworkInfo info, int delayMs) { 1375 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1376 sendGeneralBroadcastDelayed(info, CONNECTIVITY_ACTION, delayMs); 1377 } 1378 1379 private void sendInetConditionBroadcast(NetworkInfo info) { 1380 sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION); 1381 } 1382 1383 private Intent makeGeneralIntent(NetworkInfo info, String bcastType) { 1384 if (mLockdownTracker != null) { 1385 info = mLockdownTracker.augmentNetworkInfo(info); 1386 } 1387 1388 Intent intent = new Intent(bcastType); 1389 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 1390 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 1391 if (info.isFailover()) { 1392 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 1393 info.setFailover(false); 1394 } 1395 if (info.getReason() != null) { 1396 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 1397 } 1398 if (info.getExtraInfo() != null) { 1399 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 1400 info.getExtraInfo()); 1401 } 1402 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 1403 return intent; 1404 } 1405 1406 private void sendGeneralBroadcast(NetworkInfo info, String bcastType) { 1407 sendStickyBroadcast(makeGeneralIntent(info, bcastType)); 1408 } 1409 1410 private void sendGeneralBroadcastDelayed(NetworkInfo info, String bcastType, int delayMs) { 1411 sendStickyBroadcastDelayed(makeGeneralIntent(info, bcastType), delayMs); 1412 } 1413 1414 private void sendDataActivityBroadcast(int deviceType, boolean active, long tsNanos) { 1415 Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); 1416 intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); 1417 intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); 1418 intent.putExtra(ConnectivityManager.EXTRA_REALTIME_NS, tsNanos); 1419 final long ident = Binder.clearCallingIdentity(); 1420 try { 1421 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, 1422 RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); 1423 } finally { 1424 Binder.restoreCallingIdentity(ident); 1425 } 1426 } 1427 1428 private void sendStickyBroadcast(Intent intent) { 1429 synchronized(this) { 1430 if (!mSystemReady) { 1431 mInitialBroadcast = new Intent(intent); 1432 } 1433 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1434 if (DBG) { 1435 log("sendStickyBroadcast: action=" + intent.getAction()); 1436 } 1437 1438 final long ident = Binder.clearCallingIdentity(); 1439 try { 1440 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1441 } finally { 1442 Binder.restoreCallingIdentity(ident); 1443 } 1444 } 1445 } 1446 1447 private void sendStickyBroadcastDelayed(Intent intent, int delayMs) { 1448 if (delayMs <= 0) { 1449 sendStickyBroadcast(intent); 1450 } else { 1451 if (VDBG) { 1452 log("sendStickyBroadcastDelayed: delayMs=" + delayMs + ", action=" 1453 + intent.getAction()); 1454 } 1455 mHandler.sendMessageDelayed(mHandler.obtainMessage( 1456 EVENT_SEND_STICKY_BROADCAST_INTENT, intent), delayMs); 1457 } 1458 } 1459 1460 void systemReady() { 1461 // start network sampling .. 1462 Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 1463 intent.setPackage(mContext.getPackageName()); 1464 1465 mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, 1466 SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); 1467 setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); 1468 1469 loadGlobalProxy(); 1470 1471 synchronized(this) { 1472 mSystemReady = true; 1473 if (mInitialBroadcast != null) { 1474 mContext.sendStickyBroadcastAsUser(mInitialBroadcast, UserHandle.ALL); 1475 mInitialBroadcast = null; 1476 } 1477 } 1478 // load the global proxy at startup 1479 mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY)); 1480 1481 // Try bringing up tracker, but if KeyStore isn't ready yet, wait 1482 // for user to unlock device. 1483 if (!updateLockdownVpn()) { 1484 final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_PRESENT); 1485 mContext.registerReceiver(mUserPresentReceiver, filter); 1486 } 1487 1488 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SYSTEM_READY)); 1489 } 1490 1491 private BroadcastReceiver mUserPresentReceiver = new BroadcastReceiver() { 1492 @Override 1493 public void onReceive(Context context, Intent intent) { 1494 // Try creating lockdown tracker, since user present usually means 1495 // unlocked keystore. 1496 if (updateLockdownVpn()) { 1497 mContext.unregisterReceiver(this); 1498 } 1499 } 1500 }; 1501 1502 /** @hide */ 1503 @Override 1504 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 1505 enforceConnectivityInternalPermission(); 1506 if (DBG) log("captivePortalCheckCompleted: ni=" + info + " captive=" + isCaptivePortal); 1507// mNetTrackers[info.getType()].captivePortalCheckCompleted(isCaptivePortal); 1508 } 1509 1510 /** 1511 * Setup data activity tracking for the given network. 1512 * 1513 * Every {@code setupDataActivityTracking} should be paired with a 1514 * {@link #removeDataActivityTracking} for cleanup. 1515 */ 1516 private void setupDataActivityTracking(NetworkAgentInfo networkAgent) { 1517 final String iface = networkAgent.linkProperties.getInterfaceName(); 1518 1519 final int timeout; 1520 int type = ConnectivityManager.TYPE_NONE; 1521 1522 if (networkAgent.networkCapabilities.hasTransport( 1523 NetworkCapabilities.TRANSPORT_CELLULAR)) { 1524 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1525 Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, 1526 5); 1527 type = ConnectivityManager.TYPE_MOBILE; 1528 } else if (networkAgent.networkCapabilities.hasTransport( 1529 NetworkCapabilities.TRANSPORT_WIFI)) { 1530 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1531 Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, 1532 0); 1533 type = ConnectivityManager.TYPE_WIFI; 1534 } else { 1535 // do not track any other networks 1536 timeout = 0; 1537 } 1538 1539 if (timeout > 0 && iface != null && type != ConnectivityManager.TYPE_NONE) { 1540 try { 1541 mNetd.addIdleTimer(iface, timeout, type); 1542 } catch (Exception e) { 1543 // You shall not crash! 1544 loge("Exception in setupDataActivityTracking " + e); 1545 } 1546 } 1547 } 1548 1549 /** 1550 * Remove data activity tracking when network disconnects. 1551 */ 1552 private void removeDataActivityTracking(NetworkAgentInfo networkAgent) { 1553 final String iface = networkAgent.linkProperties.getInterfaceName(); 1554 final NetworkCapabilities caps = networkAgent.networkCapabilities; 1555 1556 if (iface != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) || 1557 caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))) { 1558 try { 1559 // the call fails silently if no idletimer setup for this interface 1560 mNetd.removeIdleTimer(iface); 1561 } catch (Exception e) { 1562 loge("Exception in removeDataActivityTracking " + e); 1563 } 1564 } 1565 } 1566 1567 /** 1568 * Reads the network specific MTU size from reources. 1569 * and set it on it's iface. 1570 */ 1571 private void updateMtu(LinkProperties newLp, LinkProperties oldLp) { 1572 final String iface = newLp.getInterfaceName(); 1573 final int mtu = newLp.getMtu(); 1574 if (oldLp != null && newLp.isIdenticalMtu(oldLp)) { 1575 if (VDBG) log("identical MTU - not setting"); 1576 return; 1577 } 1578 1579 if (LinkProperties.isValidMtu(mtu, newLp.hasGlobalIPv6Address()) == false) { 1580 loge("Unexpected mtu value: " + mtu + ", " + iface); 1581 return; 1582 } 1583 1584 // Cannot set MTU without interface name 1585 if (TextUtils.isEmpty(iface)) { 1586 loge("Setting MTU size with null iface."); 1587 return; 1588 } 1589 1590 try { 1591 if (DBG) log("Setting MTU size: " + iface + ", " + mtu); 1592 mNetd.setMtu(iface, mtu); 1593 } catch (Exception e) { 1594 Slog.e(TAG, "exception in setMtu()" + e); 1595 } 1596 } 1597 1598 private static final String DEFAULT_TCP_BUFFER_SIZES = "4096,87380,110208,4096,16384,110208"; 1599 1600 private void updateTcpBufferSizes(NetworkAgentInfo nai) { 1601 if (isDefaultNetwork(nai) == false) { 1602 return; 1603 } 1604 1605 String tcpBufferSizes = nai.linkProperties.getTcpBufferSizes(); 1606 String[] values = null; 1607 if (tcpBufferSizes != null) { 1608 values = tcpBufferSizes.split(","); 1609 } 1610 1611 if (values == null || values.length != 6) { 1612 if (DBG) log("Invalid tcpBufferSizes string: " + tcpBufferSizes +", using defaults"); 1613 tcpBufferSizes = DEFAULT_TCP_BUFFER_SIZES; 1614 values = tcpBufferSizes.split(","); 1615 } 1616 1617 if (tcpBufferSizes.equals(mCurrentTcpBufferSizes)) return; 1618 1619 try { 1620 if (DBG) Slog.d(TAG, "Setting tx/rx TCP buffers to " + tcpBufferSizes); 1621 1622 final String prefix = "/sys/kernel/ipv4/tcp_"; 1623 FileUtils.stringToFile(prefix + "rmem_min", values[0]); 1624 FileUtils.stringToFile(prefix + "rmem_def", values[1]); 1625 FileUtils.stringToFile(prefix + "rmem_max", values[2]); 1626 FileUtils.stringToFile(prefix + "wmem_min", values[3]); 1627 FileUtils.stringToFile(prefix + "wmem_def", values[4]); 1628 FileUtils.stringToFile(prefix + "wmem_max", values[5]); 1629 mCurrentTcpBufferSizes = tcpBufferSizes; 1630 } catch (IOException e) { 1631 loge("Can't set TCP buffer sizes:" + e); 1632 } 1633 1634 final String defaultRwndKey = "net.tcp.default_init_rwnd"; 1635 int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0); 1636 Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(), 1637 Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue); 1638 final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd"; 1639 if (rwndValue != 0) { 1640 SystemProperties.set(sysctlKey, rwndValue.toString()); 1641 } 1642 } 1643 1644 private void flushVmDnsCache() { 1645 /* 1646 * Tell the VMs to toss their DNS caches 1647 */ 1648 Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE); 1649 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); 1650 /* 1651 * Connectivity events can happen before boot has completed ... 1652 */ 1653 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1654 final long ident = Binder.clearCallingIdentity(); 1655 try { 1656 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 1657 } finally { 1658 Binder.restoreCallingIdentity(ident); 1659 } 1660 } 1661 1662 @Override 1663 public int getRestoreDefaultNetworkDelay(int networkType) { 1664 String restoreDefaultNetworkDelayStr = SystemProperties.get( 1665 NETWORK_RESTORE_DELAY_PROP_NAME); 1666 if(restoreDefaultNetworkDelayStr != null && 1667 restoreDefaultNetworkDelayStr.length() != 0) { 1668 try { 1669 return Integer.valueOf(restoreDefaultNetworkDelayStr); 1670 } catch (NumberFormatException e) { 1671 } 1672 } 1673 // if the system property isn't set, use the value for the apn type 1674 int ret = RESTORE_DEFAULT_NETWORK_DELAY; 1675 1676 if ((networkType <= ConnectivityManager.MAX_NETWORK_TYPE) && 1677 (mNetConfigs[networkType] != null)) { 1678 ret = mNetConfigs[networkType].restoreTime; 1679 } 1680 return ret; 1681 } 1682 1683 @Override 1684 protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { 1685 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1686 if (mContext.checkCallingOrSelfPermission( 1687 android.Manifest.permission.DUMP) 1688 != PackageManager.PERMISSION_GRANTED) { 1689 pw.println("Permission Denial: can't dump ConnectivityService " + 1690 "from from pid=" + Binder.getCallingPid() + ", uid=" + 1691 Binder.getCallingUid()); 1692 return; 1693 } 1694 1695 pw.println("NetworkFactories for:"); 1696 pw.increaseIndent(); 1697 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 1698 pw.println(nfi.name); 1699 } 1700 pw.decreaseIndent(); 1701 pw.println(); 1702 1703 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 1704 pw.print("Active default network: "); 1705 if (defaultNai == null) { 1706 pw.println("none"); 1707 } else { 1708 pw.println(defaultNai.network.netId); 1709 } 1710 pw.println(); 1711 1712 pw.println("Current Networks:"); 1713 pw.increaseIndent(); 1714 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 1715 pw.println(nai.toString()); 1716 pw.increaseIndent(); 1717 pw.println("Requests:"); 1718 pw.increaseIndent(); 1719 for (int i = 0; i < nai.networkRequests.size(); i++) { 1720 pw.println(nai.networkRequests.valueAt(i).toString()); 1721 } 1722 pw.decreaseIndent(); 1723 pw.println("Lingered:"); 1724 pw.increaseIndent(); 1725 for (NetworkRequest nr : nai.networkLingered) pw.println(nr.toString()); 1726 pw.decreaseIndent(); 1727 pw.decreaseIndent(); 1728 } 1729 pw.decreaseIndent(); 1730 pw.println(); 1731 1732 pw.println("Network Requests:"); 1733 pw.increaseIndent(); 1734 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 1735 pw.println(nri.toString()); 1736 } 1737 pw.println(); 1738 pw.decreaseIndent(); 1739 1740 pw.print("mActiveDefaultNetwork: " + mActiveDefaultNetwork); 1741 if (mActiveDefaultNetwork != TYPE_NONE) { 1742 NetworkInfo activeNetworkInfo = getActiveNetworkInfo(); 1743 if (activeNetworkInfo != null) { 1744 pw.print(" " + activeNetworkInfo.getState() + 1745 "/" + activeNetworkInfo.getDetailedState()); 1746 } 1747 } 1748 pw.println(); 1749 1750 pw.println("mLegacyTypeTracker:"); 1751 pw.increaseIndent(); 1752 mLegacyTypeTracker.dump(pw); 1753 pw.decreaseIndent(); 1754 pw.println(); 1755 1756 synchronized (this) { 1757 pw.println("NetworkTransitionWakeLock is currently " + 1758 (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held."); 1759 pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy); 1760 } 1761 pw.println(); 1762 1763 mTethering.dump(fd, pw, args); 1764 1765 if (mInetLog != null) { 1766 pw.println(); 1767 pw.println("Inet condition reports:"); 1768 pw.increaseIndent(); 1769 for(int i = 0; i < mInetLog.size(); i++) { 1770 pw.println(mInetLog.get(i)); 1771 } 1772 pw.decreaseIndent(); 1773 } 1774 } 1775 1776 private boolean isLiveNetworkAgent(NetworkAgentInfo nai, String msg) { 1777 if (nai.network == null) return false; 1778 final NetworkAgentInfo officialNai; 1779 synchronized (mNetworkForNetId) { 1780 officialNai = mNetworkForNetId.get(nai.network.netId); 1781 } 1782 if (officialNai != null && officialNai.equals(nai)) return true; 1783 if (officialNai != null || VDBG) { 1784 loge(msg + " - isLiveNetworkAgent found mismatched netId: " + officialNai + 1785 " - " + nai); 1786 } 1787 return false; 1788 } 1789 1790 // must be stateless - things change under us. 1791 private class NetworkStateTrackerHandler extends Handler { 1792 public NetworkStateTrackerHandler(Looper looper) { 1793 super(looper); 1794 } 1795 1796 @Override 1797 public void handleMessage(Message msg) { 1798 NetworkInfo info; 1799 switch (msg.what) { 1800 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 1801 handleAsyncChannelHalfConnect(msg); 1802 break; 1803 } 1804 case AsyncChannel.CMD_CHANNEL_DISCONNECT: { 1805 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1806 if (nai != null) nai.asyncChannel.disconnect(); 1807 break; 1808 } 1809 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 1810 handleAsyncChannelDisconnected(msg); 1811 break; 1812 } 1813 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { 1814 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1815 if (nai == null) { 1816 loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); 1817 } else { 1818 updateCapabilities(nai, (NetworkCapabilities)msg.obj); 1819 } 1820 break; 1821 } 1822 case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { 1823 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1824 if (nai == null) { 1825 loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); 1826 } else { 1827 if (VDBG) { 1828 log("Update of LinkProperties for " + nai.name() + 1829 "; created=" + nai.created); 1830 } 1831 LinkProperties oldLp = nai.linkProperties; 1832 synchronized (nai) { 1833 nai.linkProperties = (LinkProperties)msg.obj; 1834 } 1835 if (nai.created) updateLinkProperties(nai, oldLp); 1836 } 1837 break; 1838 } 1839 case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { 1840 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1841 if (nai == null) { 1842 loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); 1843 break; 1844 } 1845 info = (NetworkInfo) msg.obj; 1846 updateNetworkInfo(nai, info); 1847 break; 1848 } 1849 case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { 1850 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1851 if (nai == null) { 1852 loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); 1853 break; 1854 } 1855 Integer score = (Integer) msg.obj; 1856 if (score != null) updateNetworkScore(nai, score.intValue()); 1857 break; 1858 } 1859 case NetworkAgent.EVENT_UID_RANGES_ADDED: { 1860 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1861 if (nai == null) { 1862 loge("EVENT_UID_RANGES_ADDED from unknown NetworkAgent"); 1863 break; 1864 } 1865 try { 1866 mNetd.addVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1867 } catch (Exception e) { 1868 // Never crash! 1869 loge("Exception in addVpnUidRanges: " + e); 1870 } 1871 break; 1872 } 1873 case NetworkAgent.EVENT_UID_RANGES_REMOVED: { 1874 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1875 if (nai == null) { 1876 loge("EVENT_UID_RANGES_REMOVED from unknown NetworkAgent"); 1877 break; 1878 } 1879 try { 1880 mNetd.removeVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1881 } catch (Exception e) { 1882 // Never crash! 1883 loge("Exception in removeVpnUidRanges: " + e); 1884 } 1885 break; 1886 } 1887 case NetworkAgent.EVENT_BLOCK_ADDRESS_FAMILY: { 1888 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1889 if (nai == null) { 1890 loge("EVENT_BLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1891 break; 1892 } 1893 try { 1894 mNetd.blockAddressFamily((Integer) msg.obj, nai.network.netId, 1895 nai.linkProperties.getInterfaceName()); 1896 } catch (Exception e) { 1897 // Never crash! 1898 loge("Exception in blockAddressFamily: " + e); 1899 } 1900 break; 1901 } 1902 case NetworkAgent.EVENT_UNBLOCK_ADDRESS_FAMILY: { 1903 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1904 if (nai == null) { 1905 loge("EVENT_UNBLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1906 break; 1907 } 1908 try { 1909 mNetd.unblockAddressFamily((Integer) msg.obj, nai.network.netId, 1910 nai.linkProperties.getInterfaceName()); 1911 } catch (Exception e) { 1912 // Never crash! 1913 loge("Exception in blockAddressFamily: " + e); 1914 } 1915 break; 1916 } 1917 case NetworkAgent.EVENT_SET_EXPLICITLY_SELECTED: { 1918 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1919 if (nai == null) { 1920 loge("EVENT_SET_EXPLICITLY_SELECTED from unknown NetworkAgent"); 1921 break; 1922 } 1923 nai.networkMisc.explicitlySelected = true; 1924 break; 1925 } 1926 case NetworkMonitor.EVENT_NETWORK_TESTED: { 1927 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1928 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_VALIDATED")) { 1929 boolean valid = (msg.arg1 == NetworkMonitor.NETWORK_TEST_RESULT_VALID); 1930 if (valid) { 1931 if (DBG) log("Validated " + nai.name()); 1932 nai.validated = true; 1933 rematchNetworkAndRequests(nai); 1934 } 1935 updateInetCondition(nai, valid); 1936 // Let the NetworkAgent know the state of its network 1937 nai.asyncChannel.sendMessage( 1938 android.net.NetworkAgent.CMD_REPORT_NETWORK_STATUS, 1939 (valid ? NetworkAgent.VALID_NETWORK : NetworkAgent.INVALID_NETWORK), 1940 0, null); 1941 } 1942 break; 1943 } 1944 case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { 1945 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1946 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_LINGER_COMPLETE")) { 1947 handleLingerComplete(nai); 1948 } 1949 break; 1950 } 1951 case NetworkMonitor.EVENT_PROVISIONING_NOTIFICATION: { 1952 if (msg.arg1 == 0) { 1953 setProvNotificationVisibleIntent(false, msg.arg2, 0, null, null); 1954 } else { 1955 NetworkAgentInfo nai = null; 1956 synchronized (mNetworkForNetId) { 1957 nai = mNetworkForNetId.get(msg.arg2); 1958 } 1959 if (nai == null) { 1960 loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); 1961 break; 1962 } 1963 setProvNotificationVisibleIntent(true, msg.arg2, nai.networkInfo.getType(), 1964 nai.networkInfo.getExtraInfo(), (PendingIntent)msg.obj); 1965 } 1966 break; 1967 } 1968 case NetworkStateTracker.EVENT_STATE_CHANGED: { 1969 info = (NetworkInfo) msg.obj; 1970 NetworkInfo.State state = info.getState(); 1971 1972 if (VDBG || (state == NetworkInfo.State.CONNECTED) || 1973 (state == NetworkInfo.State.DISCONNECTED) || 1974 (state == NetworkInfo.State.SUSPENDED)) { 1975 log("ConnectivityChange for " + 1976 info.getTypeName() + ": " + 1977 state + "/" + info.getDetailedState()); 1978 } 1979 1980 // Since mobile has the notion of a network/apn that can be used for 1981 // provisioning we need to check every time we're connected as 1982 // CaptiveProtalTracker won't detected it because DCT doesn't report it 1983 // as connected as ACTION_ANY_DATA_CONNECTION_STATE_CHANGED instead its 1984 // reported as ACTION_DATA_CONNECTION_CONNECTED_TO_PROVISIONING_APN. Which 1985 // is received by MDST and sent here as EVENT_STATE_CHANGED. 1986 if (ConnectivityManager.isNetworkTypeMobile(info.getType()) 1987 && (0 != Settings.Global.getInt(mContext.getContentResolver(), 1988 Settings.Global.DEVICE_PROVISIONED, 0)) 1989 && (((state == NetworkInfo.State.CONNECTED) 1990 && (info.getType() == ConnectivityManager.TYPE_MOBILE)) 1991 || info.isConnectedToProvisioningNetwork())) { 1992 log("ConnectivityChange checkMobileProvisioning for" 1993 + " TYPE_MOBILE or ProvisioningNetwork"); 1994 checkMobileProvisioning(CheckMp.MAX_TIMEOUT_MS); 1995 } 1996 1997 EventLogTags.writeConnectivityStateChanged( 1998 info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); 1999 2000 if (info.isConnectedToProvisioningNetwork()) { 2001 /** 2002 * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING 2003 * for now its an in between network, its a network that 2004 * is actually a default network but we don't want it to be 2005 * announced as such to keep background applications from 2006 * trying to use it. It turns out that some still try so we 2007 * take the additional step of clearing any default routes 2008 * to the link that may have incorrectly setup by the lower 2009 * levels. 2010 */ 2011 LinkProperties lp = getLinkPropertiesForTypeInternal(info.getType()); 2012 if (DBG) { 2013 log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); 2014 } 2015 2016 // Clear any default routes setup by the radio so 2017 // any activity by applications trying to use this 2018 // connection will fail until the provisioning network 2019 // is enabled. 2020 /* 2021 for (RouteInfo r : lp.getRoutes()) { 2022 removeRoute(lp, r, TO_DEFAULT_TABLE, 2023 mNetTrackers[info.getType()].getNetwork().netId); 2024 } 2025 */ 2026 } else if (state == NetworkInfo.State.DISCONNECTED) { 2027 } else if (state == NetworkInfo.State.SUSPENDED) { 2028 } else if (state == NetworkInfo.State.CONNECTED) { 2029 // handleConnect(info); 2030 } 2031 if (mLockdownTracker != null) { 2032 mLockdownTracker.onNetworkInfoChanged(info); 2033 } 2034 break; 2035 } 2036 case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { 2037 info = (NetworkInfo) msg.obj; 2038 // TODO: Temporary allowing network configuration 2039 // change not resetting sockets. 2040 // @see bug/4455071 2041 /* 2042 handleConnectivityChange(info.getType(), mCurrentLinkProperties[info.getType()], 2043 false); 2044 */ 2045 break; 2046 } 2047 } 2048 } 2049 } 2050 2051 private void handleAsyncChannelHalfConnect(Message msg) { 2052 AsyncChannel ac = (AsyncChannel) msg.obj; 2053 if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { 2054 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2055 if (VDBG) log("NetworkFactory connected"); 2056 // A network factory has connected. Send it all current NetworkRequests. 2057 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 2058 if (nri.isRequest == false) continue; 2059 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2060 ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, 2061 (nai != null ? nai.getCurrentScore() : 0), 0, nri.request); 2062 } 2063 } else { 2064 loge("Error connecting NetworkFactory"); 2065 mNetworkFactoryInfos.remove(msg.obj); 2066 } 2067 } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { 2068 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2069 if (VDBG) log("NetworkAgent connected"); 2070 // A network agent has requested a connection. Establish the connection. 2071 mNetworkAgentInfos.get(msg.replyTo).asyncChannel. 2072 sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 2073 } else { 2074 loge("Error connecting NetworkAgent"); 2075 NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); 2076 if (nai != null) { 2077 synchronized (mNetworkForNetId) { 2078 mNetworkForNetId.remove(nai.network.netId); 2079 } 2080 // Just in case. 2081 mLegacyTypeTracker.remove(nai); 2082 } 2083 } 2084 } 2085 } 2086 private void handleAsyncChannelDisconnected(Message msg) { 2087 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 2088 if (nai != null) { 2089 if (DBG) { 2090 log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); 2091 } 2092 // A network agent has disconnected. 2093 if (nai.created) { 2094 // Tell netd to clean up the configuration for this network 2095 // (routing rules, DNS, etc). 2096 try { 2097 mNetd.removeNetwork(nai.network.netId); 2098 } catch (Exception e) { 2099 loge("Exception removing network: " + e); 2100 } 2101 } 2102 // TODO - if we move the logic to the network agent (have them disconnect 2103 // because they lost all their requests or because their score isn't good) 2104 // then they would disconnect organically, report their new state and then 2105 // disconnect the channel. 2106 if (nai.networkInfo.isConnected()) { 2107 nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, 2108 null, null); 2109 } 2110 if (isDefaultNetwork(nai)) { 2111 mDefaultInetConditionPublished = 0; 2112 } 2113 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); 2114 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); 2115 mNetworkAgentInfos.remove(msg.replyTo); 2116 updateClat(null, nai.linkProperties, nai); 2117 mLegacyTypeTracker.remove(nai); 2118 synchronized (mNetworkForNetId) { 2119 mNetworkForNetId.remove(nai.network.netId); 2120 } 2121 // Since we've lost the network, go through all the requests that 2122 // it was satisfying and see if any other factory can satisfy them. 2123 final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); 2124 for (int i = 0; i < nai.networkRequests.size(); i++) { 2125 NetworkRequest request = nai.networkRequests.valueAt(i); 2126 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); 2127 if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { 2128 if (DBG) { 2129 log("Checking for replacement network to handle request " + request ); 2130 } 2131 mNetworkForRequestId.remove(request.requestId); 2132 sendUpdatedScoreToFactories(request, 0); 2133 NetworkAgentInfo alternative = null; 2134 for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { 2135 NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); 2136 if (existing.networkInfo.isConnected() && 2137 request.networkCapabilities.satisfiedByNetworkCapabilities( 2138 existing.networkCapabilities) && 2139 (alternative == null || 2140 alternative.getCurrentScore() < existing.getCurrentScore())) { 2141 alternative = existing; 2142 } 2143 } 2144 if (alternative != null) { 2145 if (DBG) log(" found replacement in " + alternative.name()); 2146 if (!toActivate.contains(alternative)) { 2147 toActivate.add(alternative); 2148 } 2149 } 2150 } 2151 } 2152 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 2153 removeDataActivityTracking(nai); 2154 mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; 2155 requestNetworkTransitionWakelock(nai.name()); 2156 } 2157 for (NetworkAgentInfo networkToActivate : toActivate) { 2158 networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2159 } 2160 } 2161 } 2162 2163 private void handleRegisterNetworkRequest(Message msg) { 2164 final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); 2165 final NetworkCapabilities newCap = nri.request.networkCapabilities; 2166 int score = 0; 2167 2168 // Check for the best currently alive network that satisfies this request 2169 NetworkAgentInfo bestNetwork = null; 2170 for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { 2171 if (DBG) log("handleRegisterNetworkRequest checking " + network.name()); 2172 if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { 2173 if (DBG) log("apparently satisfied. currentScore=" + network.getCurrentScore()); 2174 if ((bestNetwork == null) || 2175 bestNetwork.getCurrentScore() < network.getCurrentScore()) { 2176 if (!nri.isRequest) { 2177 // Not setting bestNetwork here as a listening NetworkRequest may be 2178 // satisfied by multiple Networks. Instead the request is added to 2179 // each satisfying Network and notified about each. 2180 network.addRequest(nri.request); 2181 notifyNetworkCallback(network, nri); 2182 } else { 2183 bestNetwork = network; 2184 } 2185 } 2186 } 2187 } 2188 if (bestNetwork != null) { 2189 if (DBG) log("using " + bestNetwork.name()); 2190 if (bestNetwork.networkInfo.isConnected()) { 2191 // Cancel any lingering so the linger timeout doesn't teardown this network 2192 // even though we have a request for it. 2193 bestNetwork.networkLingered.clear(); 2194 bestNetwork.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2195 } 2196 bestNetwork.addRequest(nri.request); 2197 mNetworkForRequestId.put(nri.request.requestId, bestNetwork); 2198 notifyNetworkCallback(bestNetwork, nri); 2199 score = bestNetwork.getCurrentScore(); 2200 if (nri.request.legacyType != TYPE_NONE) { 2201 mLegacyTypeTracker.add(nri.request.legacyType, bestNetwork); 2202 } 2203 } 2204 mNetworkRequests.put(nri.request, nri); 2205 if (nri.isRequest) { 2206 if (DBG) log("sending new NetworkRequest to factories"); 2207 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2208 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 2209 0, nri.request); 2210 } 2211 } 2212 } 2213 2214 private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) { 2215 NetworkRequestInfo nri = mNetworkRequests.get(request); 2216 if (nri != null) { 2217 if (Process.SYSTEM_UID != callingUid && nri.mUid != callingUid) { 2218 if (DBG) log("Attempt to release unowned NetworkRequest " + request); 2219 return; 2220 } 2221 if (DBG) log("releasing NetworkRequest " + request); 2222 nri.unlinkDeathRecipient(); 2223 mNetworkRequests.remove(request); 2224 if (nri.isRequest) { 2225 // Find all networks that are satisfying this request and remove the request 2226 // from their request lists. 2227 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2228 if (nai.networkRequests.get(nri.request.requestId) != null) { 2229 nai.networkRequests.remove(nri.request.requestId); 2230 if (DBG) { 2231 log(" Removing from current network " + nai.name() + 2232 ", leaving " + nai.networkRequests.size() + 2233 " requests."); 2234 } 2235 // check if has any requests remaining and if not, 2236 // disconnect (unless it's a VPN). 2237 boolean keep = nai.isVPN(); 2238 for (int i = 0; i < nai.networkRequests.size() && !keep; i++) { 2239 NetworkRequest r = nai.networkRequests.valueAt(i); 2240 if (mNetworkRequests.get(r).isRequest) keep = true; 2241 } 2242 if (!keep) { 2243 if (DBG) log("no live requests for " + nai.name() + "; disconnecting"); 2244 nai.asyncChannel.disconnect(); 2245 } 2246 } 2247 } 2248 2249 // Maintain the illusion. When this request arrived, we might have preteneded 2250 // that a network connected to serve it, even though the network was already 2251 // connected. Now that this request has gone away, we might have to pretend 2252 // that the network disconnected. LegacyTypeTracker will generate that 2253 // phatom disconnect for this type. 2254 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2255 if (nai != null) { 2256 mNetworkForRequestId.remove(nri.request.requestId); 2257 if (nri.request.legacyType != TYPE_NONE) { 2258 mLegacyTypeTracker.remove(nri.request.legacyType, nai); 2259 } 2260 } 2261 2262 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2263 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 2264 nri.request); 2265 } 2266 } else { 2267 // listens don't have a singular affectedNetwork. Check all networks to see 2268 // if this listen request applies and remove it. 2269 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2270 nai.networkRequests.remove(nri.request.requestId); 2271 } 2272 } 2273 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 2274 } 2275 } 2276 2277 private class InternalHandler extends Handler { 2278 public InternalHandler(Looper looper) { 2279 super(looper); 2280 } 2281 2282 @Override 2283 public void handleMessage(Message msg) { 2284 NetworkInfo info; 2285 switch (msg.what) { 2286 case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: 2287 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 2288 String causedBy = null; 2289 synchronized (ConnectivityService.this) { 2290 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 2291 mNetTransitionWakeLock.isHeld()) { 2292 mNetTransitionWakeLock.release(); 2293 causedBy = mNetTransitionWakeLockCausedBy; 2294 } else { 2295 break; 2296 } 2297 } 2298 if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { 2299 log("Failed to find a new network - expiring NetTransition Wakelock"); 2300 } else { 2301 log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + 2302 " cleared because we found a replacement network"); 2303 } 2304 break; 2305 } 2306 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 2307 handleDeprecatedGlobalHttpProxy(); 2308 break; 2309 } 2310 case EVENT_SET_DEPENDENCY_MET: { 2311 boolean met = (msg.arg1 == ENABLED); 2312 handleSetDependencyMet(msg.arg2, met); 2313 break; 2314 } 2315 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 2316 Intent intent = (Intent)msg.obj; 2317 sendStickyBroadcast(intent); 2318 break; 2319 } 2320 case EVENT_SET_POLICY_DATA_ENABLE: { 2321 final int networkType = msg.arg1; 2322 final boolean enabled = msg.arg2 == ENABLED; 2323 handleSetPolicyDataEnable(networkType, enabled); 2324 break; 2325 } 2326 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 2327 int tag = mEnableFailFastMobileDataTag.get(); 2328 if (msg.arg1 == tag) { 2329 MobileDataStateTracker mobileDst = 2330 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2331 if (mobileDst != null) { 2332 mobileDst.setEnableFailFastMobileData(msg.arg2); 2333 } 2334 } else { 2335 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 2336 + " != tag:" + tag); 2337 } 2338 break; 2339 } 2340 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 2341 handleNetworkSamplingTimeout(); 2342 break; 2343 } 2344 case EVENT_PROXY_HAS_CHANGED: { 2345 handleApplyDefaultProxy((ProxyInfo)msg.obj); 2346 break; 2347 } 2348 case EVENT_REGISTER_NETWORK_FACTORY: { 2349 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 2350 break; 2351 } 2352 case EVENT_UNREGISTER_NETWORK_FACTORY: { 2353 handleUnregisterNetworkFactory((Messenger)msg.obj); 2354 break; 2355 } 2356 case EVENT_REGISTER_NETWORK_AGENT: { 2357 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 2358 break; 2359 } 2360 case EVENT_REGISTER_NETWORK_REQUEST: 2361 case EVENT_REGISTER_NETWORK_LISTENER: { 2362 handleRegisterNetworkRequest(msg); 2363 break; 2364 } 2365 case EVENT_RELEASE_NETWORK_REQUEST: { 2366 handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); 2367 break; 2368 } 2369 case EVENT_SYSTEM_READY: { 2370 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2371 nai.networkMonitor.systemReady = true; 2372 } 2373 break; 2374 } 2375 } 2376 } 2377 } 2378 2379 // javadoc from interface 2380 public int tether(String iface) { 2381 ConnectivityManager.enforceTetherChangePermission(mContext); 2382 if (isTetheringSupported()) { 2383 return mTethering.tether(iface); 2384 } else { 2385 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2386 } 2387 } 2388 2389 // javadoc from interface 2390 public int untether(String iface) { 2391 ConnectivityManager.enforceTetherChangePermission(mContext); 2392 2393 if (isTetheringSupported()) { 2394 return mTethering.untether(iface); 2395 } else { 2396 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2397 } 2398 } 2399 2400 // javadoc from interface 2401 public int getLastTetherError(String iface) { 2402 enforceTetherAccessPermission(); 2403 2404 if (isTetheringSupported()) { 2405 return mTethering.getLastTetherError(iface); 2406 } else { 2407 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2408 } 2409 } 2410 2411 // TODO - proper iface API for selection by property, inspection, etc 2412 public String[] getTetherableUsbRegexs() { 2413 enforceTetherAccessPermission(); 2414 if (isTetheringSupported()) { 2415 return mTethering.getTetherableUsbRegexs(); 2416 } else { 2417 return new String[0]; 2418 } 2419 } 2420 2421 public String[] getTetherableWifiRegexs() { 2422 enforceTetherAccessPermission(); 2423 if (isTetheringSupported()) { 2424 return mTethering.getTetherableWifiRegexs(); 2425 } else { 2426 return new String[0]; 2427 } 2428 } 2429 2430 public String[] getTetherableBluetoothRegexs() { 2431 enforceTetherAccessPermission(); 2432 if (isTetheringSupported()) { 2433 return mTethering.getTetherableBluetoothRegexs(); 2434 } else { 2435 return new String[0]; 2436 } 2437 } 2438 2439 public int setUsbTethering(boolean enable) { 2440 ConnectivityManager.enforceTetherChangePermission(mContext); 2441 if (isTetheringSupported()) { 2442 return mTethering.setUsbTethering(enable); 2443 } else { 2444 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2445 } 2446 } 2447 2448 // TODO - move iface listing, queries, etc to new module 2449 // javadoc from interface 2450 public String[] getTetherableIfaces() { 2451 enforceTetherAccessPermission(); 2452 return mTethering.getTetherableIfaces(); 2453 } 2454 2455 public String[] getTetheredIfaces() { 2456 enforceTetherAccessPermission(); 2457 return mTethering.getTetheredIfaces(); 2458 } 2459 2460 public String[] getTetheringErroredIfaces() { 2461 enforceTetherAccessPermission(); 2462 return mTethering.getErroredIfaces(); 2463 } 2464 2465 public String[] getTetheredDhcpRanges() { 2466 enforceConnectivityInternalPermission(); 2467 return mTethering.getTetheredDhcpRanges(); 2468 } 2469 2470 // if ro.tether.denied = true we default to no tethering 2471 // gservices could set the secure setting to 1 though to enable it on a build where it 2472 // had previously been turned off. 2473 public boolean isTetheringSupported() { 2474 enforceTetherAccessPermission(); 2475 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 2476 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 2477 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0) 2478 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); 2479 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 2480 mTethering.getTetherableWifiRegexs().length != 0 || 2481 mTethering.getTetherableBluetoothRegexs().length != 0) && 2482 mTethering.getUpstreamIfaceTypes().length != 0); 2483 } 2484 2485 // Called when we lose the default network and have no replacement yet. 2486 // This will automatically be cleared after X seconds or a new default network 2487 // becomes CONNECTED, whichever happens first. The timer is started by the 2488 // first caller and not restarted by subsequent callers. 2489 private void requestNetworkTransitionWakelock(String forWhom) { 2490 int serialNum = 0; 2491 synchronized (this) { 2492 if (mNetTransitionWakeLock.isHeld()) return; 2493 serialNum = ++mNetTransitionWakeLockSerialNumber; 2494 mNetTransitionWakeLock.acquire(); 2495 mNetTransitionWakeLockCausedBy = forWhom; 2496 } 2497 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2498 EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), 2499 mNetTransitionWakeLockTimeout); 2500 return; 2501 } 2502 2503 // 100 percent is full good, 0 is full bad. 2504 public void reportInetCondition(int networkType, int percentage) { 2505 if (percentage > 50) return; // don't handle good network reports 2506 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 2507 if (nai != null) reportBadNetwork(nai.network); 2508 } 2509 2510 public void reportBadNetwork(Network network) { 2511 enforceAccessPermission(); 2512 enforceInternetPermission(); 2513 2514 if (network == null) return; 2515 2516 final int uid = Binder.getCallingUid(); 2517 NetworkAgentInfo nai = null; 2518 synchronized (mNetworkForNetId) { 2519 nai = mNetworkForNetId.get(network.netId); 2520 } 2521 if (nai == null) return; 2522 if (DBG) log("reportBadNetwork(" + nai.name() + ") by " + uid); 2523 synchronized (nai) { 2524 if (isNetworkBlocked(nai, uid)) return; 2525 2526 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_FORCE_REEVALUATION, uid); 2527 } 2528 } 2529 2530 public ProxyInfo getProxy() { 2531 // this information is already available as a world read/writable jvm property 2532 // so this API change wouldn't have a benifit. It also breaks the passing 2533 // of proxy info to all the JVMs. 2534 // enforceAccessPermission(); 2535 synchronized (mProxyLock) { 2536 ProxyInfo ret = mGlobalProxy; 2537 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 2538 return ret; 2539 } 2540 } 2541 2542 public void setGlobalProxy(ProxyInfo proxyProperties) { 2543 enforceConnectivityInternalPermission(); 2544 2545 synchronized (mProxyLock) { 2546 if (proxyProperties == mGlobalProxy) return; 2547 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 2548 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 2549 2550 String host = ""; 2551 int port = 0; 2552 String exclList = ""; 2553 String pacFileUrl = ""; 2554 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 2555 (proxyProperties.getPacFileUrl() != null))) { 2556 if (!proxyProperties.isValid()) { 2557 if (DBG) 2558 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2559 return; 2560 } 2561 mGlobalProxy = new ProxyInfo(proxyProperties); 2562 host = mGlobalProxy.getHost(); 2563 port = mGlobalProxy.getPort(); 2564 exclList = mGlobalProxy.getExclusionListAsString(); 2565 if (proxyProperties.getPacFileUrl() != null) { 2566 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 2567 } 2568 } else { 2569 mGlobalProxy = null; 2570 } 2571 ContentResolver res = mContext.getContentResolver(); 2572 final long token = Binder.clearCallingIdentity(); 2573 try { 2574 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 2575 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 2576 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 2577 exclList); 2578 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 2579 } finally { 2580 Binder.restoreCallingIdentity(token); 2581 } 2582 } 2583 2584 if (mGlobalProxy == null) { 2585 proxyProperties = mDefaultProxy; 2586 } 2587 sendProxyBroadcast(proxyProperties); 2588 } 2589 2590 private void loadGlobalProxy() { 2591 ContentResolver res = mContext.getContentResolver(); 2592 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 2593 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 2594 String exclList = Settings.Global.getString(res, 2595 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 2596 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 2597 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 2598 ProxyInfo proxyProperties; 2599 if (!TextUtils.isEmpty(pacFileUrl)) { 2600 proxyProperties = new ProxyInfo(pacFileUrl); 2601 } else { 2602 proxyProperties = new ProxyInfo(host, port, exclList); 2603 } 2604 if (!proxyProperties.isValid()) { 2605 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2606 return; 2607 } 2608 2609 synchronized (mProxyLock) { 2610 mGlobalProxy = proxyProperties; 2611 } 2612 } 2613 } 2614 2615 public ProxyInfo getGlobalProxy() { 2616 // this information is already available as a world read/writable jvm property 2617 // so this API change wouldn't have a benifit. It also breaks the passing 2618 // of proxy info to all the JVMs. 2619 // enforceAccessPermission(); 2620 synchronized (mProxyLock) { 2621 return mGlobalProxy; 2622 } 2623 } 2624 2625 private void handleApplyDefaultProxy(ProxyInfo proxy) { 2626 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 2627 && (proxy.getPacFileUrl() == null)) { 2628 proxy = null; 2629 } 2630 synchronized (mProxyLock) { 2631 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 2632 if (mDefaultProxy == proxy) return; // catches repeated nulls 2633 if (proxy != null && !proxy.isValid()) { 2634 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 2635 return; 2636 } 2637 2638 // This call could be coming from the PacManager, containing the port of the local 2639 // proxy. If this new proxy matches the global proxy then copy this proxy to the 2640 // global (to get the correct local port), and send a broadcast. 2641 // TODO: Switch PacManager to have its own message to send back rather than 2642 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 2643 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 2644 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 2645 mGlobalProxy = proxy; 2646 sendProxyBroadcast(mGlobalProxy); 2647 return; 2648 } 2649 mDefaultProxy = proxy; 2650 2651 if (mGlobalProxy != null) return; 2652 if (!mDefaultProxyDisabled) { 2653 sendProxyBroadcast(proxy); 2654 } 2655 } 2656 } 2657 2658 private void handleDeprecatedGlobalHttpProxy() { 2659 String proxy = Settings.Global.getString(mContext.getContentResolver(), 2660 Settings.Global.HTTP_PROXY); 2661 if (!TextUtils.isEmpty(proxy)) { 2662 String data[] = proxy.split(":"); 2663 if (data.length == 0) { 2664 return; 2665 } 2666 2667 String proxyHost = data[0]; 2668 int proxyPort = 8080; 2669 if (data.length > 1) { 2670 try { 2671 proxyPort = Integer.parseInt(data[1]); 2672 } catch (NumberFormatException e) { 2673 return; 2674 } 2675 } 2676 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 2677 setGlobalProxy(p); 2678 } 2679 } 2680 2681 private void sendProxyBroadcast(ProxyInfo proxy) { 2682 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 2683 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 2684 if (DBG) log("sending Proxy Broadcast for " + proxy); 2685 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 2686 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 2687 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2688 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 2689 final long ident = Binder.clearCallingIdentity(); 2690 try { 2691 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2692 } finally { 2693 Binder.restoreCallingIdentity(ident); 2694 } 2695 } 2696 2697 private static class SettingsObserver extends ContentObserver { 2698 private int mWhat; 2699 private Handler mHandler; 2700 SettingsObserver(Handler handler, int what) { 2701 super(handler); 2702 mHandler = handler; 2703 mWhat = what; 2704 } 2705 2706 void observe(Context context) { 2707 ContentResolver resolver = context.getContentResolver(); 2708 resolver.registerContentObserver(Settings.Global.getUriFor( 2709 Settings.Global.HTTP_PROXY), false, this); 2710 } 2711 2712 @Override 2713 public void onChange(boolean selfChange) { 2714 mHandler.obtainMessage(mWhat).sendToTarget(); 2715 } 2716 } 2717 2718 private static void log(String s) { 2719 Slog.d(TAG, s); 2720 } 2721 2722 private static void loge(String s) { 2723 Slog.e(TAG, s); 2724 } 2725 2726 int convertFeatureToNetworkType(int networkType, String feature) { 2727 int usedNetworkType = networkType; 2728 2729 if(networkType == ConnectivityManager.TYPE_MOBILE) { 2730 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 2731 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 2732 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 2733 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 2734 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 2735 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 2736 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 2737 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 2738 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 2739 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 2740 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 2741 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 2742 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 2743 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 2744 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 2745 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { 2746 usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; 2747 } else { 2748 Slog.e(TAG, "Can't match any mobile netTracker!"); 2749 } 2750 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 2751 if (TextUtils.equals(feature, "p2p")) { 2752 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 2753 } else { 2754 Slog.e(TAG, "Can't match any wifi netTracker!"); 2755 } 2756 } else { 2757 Slog.e(TAG, "Unexpected network type"); 2758 } 2759 return usedNetworkType; 2760 } 2761 2762 private static <T> T checkNotNull(T value, String message) { 2763 if (value == null) { 2764 throw new NullPointerException(message); 2765 } 2766 return value; 2767 } 2768 2769 /** 2770 * Prepare for a VPN application. This method is used by VpnDialogs 2771 * and not available in ConnectivityManager. Permissions are checked 2772 * in Vpn class. 2773 * @hide 2774 */ 2775 @Override 2776 public boolean prepareVpn(String oldPackage, String newPackage) { 2777 throwIfLockdownEnabled(); 2778 int user = UserHandle.getUserId(Binder.getCallingUid()); 2779 synchronized(mVpns) { 2780 return mVpns.get(user).prepare(oldPackage, newPackage); 2781 } 2782 } 2783 2784 /** 2785 * Set whether the current VPN package has the ability to launch VPNs without 2786 * user intervention. This method is used by system UIs and not available 2787 * in ConnectivityManager. Permissions are checked in Vpn class. 2788 * @hide 2789 */ 2790 @Override 2791 public void setVpnPackageAuthorization(boolean authorized) { 2792 int user = UserHandle.getUserId(Binder.getCallingUid()); 2793 synchronized(mVpns) { 2794 mVpns.get(user).setPackageAuthorization(authorized); 2795 } 2796 } 2797 2798 /** 2799 * Configure a TUN interface and return its file descriptor. Parameters 2800 * are encoded and opaque to this class. This method is used by VpnBuilder 2801 * and not available in ConnectivityManager. Permissions are checked in 2802 * Vpn class. 2803 * @hide 2804 */ 2805 @Override 2806 public ParcelFileDescriptor establishVpn(VpnConfig config) { 2807 throwIfLockdownEnabled(); 2808 int user = UserHandle.getUserId(Binder.getCallingUid()); 2809 synchronized(mVpns) { 2810 return mVpns.get(user).establish(config); 2811 } 2812 } 2813 2814 /** 2815 * Start legacy VPN, controlling native daemons as needed. Creates a 2816 * secondary thread to perform connection work, returning quickly. 2817 */ 2818 @Override 2819 public void startLegacyVpn(VpnProfile profile) { 2820 throwIfLockdownEnabled(); 2821 final LinkProperties egress = getActiveLinkProperties(); 2822 if (egress == null) { 2823 throw new IllegalStateException("Missing active network connection"); 2824 } 2825 int user = UserHandle.getUserId(Binder.getCallingUid()); 2826 synchronized(mVpns) { 2827 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 2828 } 2829 } 2830 2831 /** 2832 * Return the information of the ongoing legacy VPN. This method is used 2833 * by VpnSettings and not available in ConnectivityManager. Permissions 2834 * are checked in Vpn class. 2835 * @hide 2836 */ 2837 @Override 2838 public LegacyVpnInfo getLegacyVpnInfo() { 2839 throwIfLockdownEnabled(); 2840 int user = UserHandle.getUserId(Binder.getCallingUid()); 2841 synchronized(mVpns) { 2842 return mVpns.get(user).getLegacyVpnInfo(); 2843 } 2844 } 2845 2846 /** 2847 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 2848 * not available in ConnectivityManager. 2849 * Permissions are checked in Vpn class. 2850 * @hide 2851 */ 2852 @Override 2853 public VpnConfig getVpnConfig() { 2854 int user = UserHandle.getUserId(Binder.getCallingUid()); 2855 synchronized(mVpns) { 2856 return mVpns.get(user).getVpnConfig(); 2857 } 2858 } 2859 2860 @Override 2861 public boolean updateLockdownVpn() { 2862 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 2863 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 2864 return false; 2865 } 2866 2867 // Tear down existing lockdown if profile was removed 2868 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 2869 if (mLockdownEnabled) { 2870 if (!mKeyStore.isUnlocked()) { 2871 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 2872 return false; 2873 } 2874 2875 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 2876 final VpnProfile profile = VpnProfile.decode( 2877 profileName, mKeyStore.get(Credentials.VPN + profileName)); 2878 int user = UserHandle.getUserId(Binder.getCallingUid()); 2879 synchronized(mVpns) { 2880 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 2881 profile)); 2882 } 2883 } else { 2884 setLockdownTracker(null); 2885 } 2886 2887 return true; 2888 } 2889 2890 /** 2891 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 2892 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 2893 */ 2894 private void setLockdownTracker(LockdownVpnTracker tracker) { 2895 // Shutdown any existing tracker 2896 final LockdownVpnTracker existing = mLockdownTracker; 2897 mLockdownTracker = null; 2898 if (existing != null) { 2899 existing.shutdown(); 2900 } 2901 2902 try { 2903 if (tracker != null) { 2904 mNetd.setFirewallEnabled(true); 2905 mNetd.setFirewallInterfaceRule("lo", true); 2906 mLockdownTracker = tracker; 2907 mLockdownTracker.init(); 2908 } else { 2909 mNetd.setFirewallEnabled(false); 2910 } 2911 } catch (RemoteException e) { 2912 // ignored; NMS lives inside system_server 2913 } 2914 } 2915 2916 private void throwIfLockdownEnabled() { 2917 if (mLockdownEnabled) { 2918 throw new IllegalStateException("Unavailable in lockdown mode"); 2919 } 2920 } 2921 2922 public void supplyMessenger(int networkType, Messenger messenger) { 2923 enforceConnectivityInternalPermission(); 2924 2925 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 2926 mNetTrackers[networkType].supplyMessenger(messenger); 2927 } 2928 } 2929 2930 public int findConnectionTypeForIface(String iface) { 2931 enforceConnectivityInternalPermission(); 2932 2933 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 2934 2935 synchronized(mNetworkForNetId) { 2936 for (int i = 0; i < mNetworkForNetId.size(); i++) { 2937 NetworkAgentInfo nai = mNetworkForNetId.valueAt(i); 2938 LinkProperties lp = nai.linkProperties; 2939 if (lp != null && iface.equals(lp.getInterfaceName()) && nai.networkInfo != null) { 2940 return nai.networkInfo.getType(); 2941 } 2942 } 2943 } 2944 return ConnectivityManager.TYPE_NONE; 2945 } 2946 2947 /** 2948 * Have mobile data fail fast if enabled. 2949 * 2950 * @param enabled DctConstants.ENABLED/DISABLED 2951 */ 2952 private void setEnableFailFastMobileData(int enabled) { 2953 int tag; 2954 2955 if (enabled == DctConstants.ENABLED) { 2956 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 2957 } else { 2958 tag = mEnableFailFastMobileDataTag.get(); 2959 } 2960 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 2961 enabled)); 2962 } 2963 2964 private boolean isMobileDataStateTrackerReady() { 2965 MobileDataStateTracker mdst = 2966 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 2967 return (mdst != null) && (mdst.isReady()); 2968 } 2969 2970 /** 2971 * The ResultReceiver resultCode for checkMobileProvisioning (CMP_RESULT_CODE) 2972 */ 2973 2974 /** 2975 * No connection was possible to the network. 2976 * This is NOT a warm sim. 2977 */ 2978 private static final int CMP_RESULT_CODE_NO_CONNECTION = 0; 2979 2980 /** 2981 * A connection was made to the internet, all is well. 2982 * This is NOT a warm sim. 2983 */ 2984 private static final int CMP_RESULT_CODE_CONNECTABLE = 1; 2985 2986 /** 2987 * A connection was made but no dns server was available to resolve a name to address. 2988 * This is NOT a warm sim since provisioning network is supported. 2989 */ 2990 private static final int CMP_RESULT_CODE_NO_DNS = 2; 2991 2992 /** 2993 * A connection was made but could not open a TCP connection. 2994 * This is NOT a warm sim since provisioning network is supported. 2995 */ 2996 private static final int CMP_RESULT_CODE_NO_TCP_CONNECTION = 3; 2997 2998 /** 2999 * A connection was made but there was a redirection, we appear to be in walled garden. 3000 * This is an indication of a warm sim on a mobile network such as T-Mobile. 3001 */ 3002 private static final int CMP_RESULT_CODE_REDIRECTED = 4; 3003 3004 /** 3005 * The mobile network is a provisioning network. 3006 * This is an indication of a warm sim on a mobile network such as AT&T. 3007 */ 3008 private static final int CMP_RESULT_CODE_PROVISIONING_NETWORK = 5; 3009 3010 /** 3011 * The mobile network is provisioning 3012 */ 3013 private static final int CMP_RESULT_CODE_IS_PROVISIONING = 6; 3014 3015 private AtomicBoolean mIsProvisioningNetwork = new AtomicBoolean(false); 3016 private AtomicBoolean mIsStartingProvisioning = new AtomicBoolean(false); 3017 3018 private AtomicBoolean mIsCheckingMobileProvisioning = new AtomicBoolean(false); 3019 3020 @Override 3021 public int checkMobileProvisioning(int suggestedTimeOutMs) { 3022 int timeOutMs = -1; 3023 if (DBG) log("checkMobileProvisioning: E suggestedTimeOutMs=" + suggestedTimeOutMs); 3024 enforceConnectivityInternalPermission(); 3025 3026 final long token = Binder.clearCallingIdentity(); 3027 try { 3028 timeOutMs = suggestedTimeOutMs; 3029 if (suggestedTimeOutMs > CheckMp.MAX_TIMEOUT_MS) { 3030 timeOutMs = CheckMp.MAX_TIMEOUT_MS; 3031 } 3032 3033 // Check that mobile networks are supported 3034 if (!isNetworkSupported(ConnectivityManager.TYPE_MOBILE) 3035 || !isNetworkSupported(ConnectivityManager.TYPE_MOBILE_HIPRI)) { 3036 if (DBG) log("checkMobileProvisioning: X no mobile network"); 3037 return timeOutMs; 3038 } 3039 3040 // If we're already checking don't do it again 3041 // TODO: Add a queue of results... 3042 if (mIsCheckingMobileProvisioning.getAndSet(true)) { 3043 if (DBG) log("checkMobileProvisioning: X already checking ignore for the moment"); 3044 return timeOutMs; 3045 } 3046 3047 // Start off with mobile notification off 3048 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3049 3050 CheckMp checkMp = new CheckMp(mContext, this); 3051 CheckMp.CallBack cb = new CheckMp.CallBack() { 3052 @Override 3053 void onComplete(Integer result) { 3054 if (DBG) log("CheckMp.onComplete: result=" + result); 3055 NetworkInfo ni = 3056 mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI].getNetworkInfo(); 3057 switch(result) { 3058 case CMP_RESULT_CODE_CONNECTABLE: 3059 case CMP_RESULT_CODE_NO_CONNECTION: 3060 case CMP_RESULT_CODE_NO_DNS: 3061 case CMP_RESULT_CODE_NO_TCP_CONNECTION: { 3062 if (DBG) log("CheckMp.onComplete: ignore, connected or no connection"); 3063 break; 3064 } 3065 case CMP_RESULT_CODE_REDIRECTED: { 3066 if (DBG) log("CheckMp.onComplete: warm sim"); 3067 String url = getMobileProvisioningUrl(); 3068 if (TextUtils.isEmpty(url)) { 3069 url = getMobileRedirectedProvisioningUrl(); 3070 } 3071 if (TextUtils.isEmpty(url) == false) { 3072 if (DBG) log("CheckMp.onComplete: warm (redirected), url=" + url); 3073 setProvNotificationVisible(true, 3074 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 3075 url); 3076 } else { 3077 if (DBG) log("CheckMp.onComplete: warm (redirected), no url"); 3078 } 3079 break; 3080 } 3081 case CMP_RESULT_CODE_PROVISIONING_NETWORK: { 3082 String url = getMobileProvisioningUrl(); 3083 if (TextUtils.isEmpty(url) == false) { 3084 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), url=" + url); 3085 setProvNotificationVisible(true, 3086 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 3087 url); 3088 // Mark that we've got a provisioning network and 3089 // Disable Mobile Data until user actually starts provisioning. 3090 mIsProvisioningNetwork.set(true); 3091 MobileDataStateTracker mdst = (MobileDataStateTracker) 3092 mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3093 3094 // Disable radio until user starts provisioning 3095 mdst.setRadio(false); 3096 } else { 3097 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), no url"); 3098 } 3099 break; 3100 } 3101 case CMP_RESULT_CODE_IS_PROVISIONING: { 3102 // FIXME: Need to know when provisioning is done. Probably we can 3103 // check the completion status if successful we're done if we 3104 // "timedout" or still connected to provisioning APN turn off data? 3105 if (DBG) log("CheckMp.onComplete: provisioning started"); 3106 mIsStartingProvisioning.set(false); 3107 break; 3108 } 3109 default: { 3110 loge("CheckMp.onComplete: ignore unexpected result=" + result); 3111 break; 3112 } 3113 } 3114 mIsCheckingMobileProvisioning.set(false); 3115 } 3116 }; 3117 CheckMp.Params params = 3118 new CheckMp.Params(checkMp.getDefaultUrl(), timeOutMs, cb); 3119 if (DBG) log("checkMobileProvisioning: params=" + params); 3120 // TODO: Reenable when calls to the now defunct 3121 // MobileDataStateTracker.isProvisioningNetwork() are removed. 3122 // This code should be moved to the Telephony code. 3123 // checkMp.execute(params); 3124 } finally { 3125 Binder.restoreCallingIdentity(token); 3126 if (DBG) log("checkMobileProvisioning: X"); 3127 } 3128 return timeOutMs; 3129 } 3130 3131 static class CheckMp extends 3132 AsyncTask<CheckMp.Params, Void, Integer> { 3133 private static final String CHECKMP_TAG = "CheckMp"; 3134 3135 // adb shell setprop persist.checkmp.testfailures 1 to enable testing failures 3136 private static boolean mTestingFailures; 3137 3138 // Choosing 4 loops as half of them will use HTTPS and the other half HTTP 3139 private static final int MAX_LOOPS = 4; 3140 3141 // Number of milli-seconds to complete all of the retires 3142 public static final int MAX_TIMEOUT_MS = 60000; 3143 3144 // The socket should retry only 5 seconds, the default is longer 3145 private static final int SOCKET_TIMEOUT_MS = 5000; 3146 3147 // Sleep time for network errors 3148 private static final int NET_ERROR_SLEEP_SEC = 3; 3149 3150 // Sleep time for network route establishment 3151 private static final int NET_ROUTE_ESTABLISHMENT_SLEEP_SEC = 3; 3152 3153 // Short sleep time for polling :( 3154 private static final int POLLING_SLEEP_SEC = 1; 3155 3156 private Context mContext; 3157 private ConnectivityService mCs; 3158 private TelephonyManager mTm; 3159 private Params mParams; 3160 3161 /** 3162 * Parameters for AsyncTask.execute 3163 */ 3164 static class Params { 3165 private String mUrl; 3166 private long mTimeOutMs; 3167 private CallBack mCb; 3168 3169 Params(String url, long timeOutMs, CallBack cb) { 3170 mUrl = url; 3171 mTimeOutMs = timeOutMs; 3172 mCb = cb; 3173 } 3174 3175 @Override 3176 public String toString() { 3177 return "{" + " url=" + mUrl + " mTimeOutMs=" + mTimeOutMs + " mCb=" + mCb + "}"; 3178 } 3179 } 3180 3181 // As explained to me by Brian Carlstrom and Kenny Root, Certificates can be 3182 // issued by name or ip address, for Google its by name so when we construct 3183 // this HostnameVerifier we'll pass the original Uri and use it to verify 3184 // the host. If the host name in the original uril fails we'll test the 3185 // hostname parameter just incase things change. 3186 static class CheckMpHostnameVerifier implements HostnameVerifier { 3187 Uri mOrgUri; 3188 3189 CheckMpHostnameVerifier(Uri orgUri) { 3190 mOrgUri = orgUri; 3191 } 3192 3193 @Override 3194 public boolean verify(String hostname, SSLSession session) { 3195 HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier(); 3196 String orgUriHost = mOrgUri.getHost(); 3197 boolean retVal = hv.verify(orgUriHost, session) || hv.verify(hostname, session); 3198 if (DBG) { 3199 log("isMobileOk: hostnameVerify retVal=" + retVal + " hostname=" + hostname 3200 + " orgUriHost=" + orgUriHost); 3201 } 3202 return retVal; 3203 } 3204 } 3205 3206 /** 3207 * The call back object passed in Params. onComplete will be called 3208 * on the main thread. 3209 */ 3210 abstract static class CallBack { 3211 // Called on the main thread. 3212 abstract void onComplete(Integer result); 3213 } 3214 3215 public CheckMp(Context context, ConnectivityService cs) { 3216 if (Build.IS_DEBUGGABLE) { 3217 mTestingFailures = 3218 SystemProperties.getInt("persist.checkmp.testfailures", 0) == 1; 3219 } else { 3220 mTestingFailures = false; 3221 } 3222 3223 mContext = context; 3224 mCs = cs; 3225 3226 // Setup access to TelephonyService we'll be using. 3227 mTm = (TelephonyManager) mContext.getSystemService( 3228 Context.TELEPHONY_SERVICE); 3229 } 3230 3231 /** 3232 * Get the default url to use for the test. 3233 */ 3234 public String getDefaultUrl() { 3235 // See http://go/clientsdns for usage approval 3236 String server = Settings.Global.getString(mContext.getContentResolver(), 3237 Settings.Global.CAPTIVE_PORTAL_SERVER); 3238 if (server == null) { 3239 server = "clients3.google.com"; 3240 } 3241 return "http://" + server + "/generate_204"; 3242 } 3243 3244 /** 3245 * Detect if its possible to connect to the http url. DNS based detection techniques 3246 * do not work at all hotspots. The best way to check is to perform a request to 3247 * a known address that fetches the data we expect. 3248 */ 3249 private synchronized Integer isMobileOk(Params params) { 3250 Integer result = CMP_RESULT_CODE_NO_CONNECTION; 3251 Uri orgUri = Uri.parse(params.mUrl); 3252 Random rand = new Random(); 3253 mParams = params; 3254 3255 if (mCs.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false) { 3256 result = CMP_RESULT_CODE_NO_CONNECTION; 3257 log("isMobileOk: X not mobile capable result=" + result); 3258 return result; 3259 } 3260 3261 if (mCs.mIsStartingProvisioning.get()) { 3262 result = CMP_RESULT_CODE_IS_PROVISIONING; 3263 log("isMobileOk: X is provisioning result=" + result); 3264 return result; 3265 } 3266 3267 // See if we've already determined we've got a provisioning connection, 3268 // if so we don't need to do anything active. 3269 MobileDataStateTracker mdstDefault = (MobileDataStateTracker) 3270 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3271 boolean isDefaultProvisioning = mdstDefault.isProvisioningNetwork(); 3272 log("isMobileOk: isDefaultProvisioning=" + isDefaultProvisioning); 3273 3274 MobileDataStateTracker mdstHipri = (MobileDataStateTracker) 3275 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3276 boolean isHipriProvisioning = mdstHipri.isProvisioningNetwork(); 3277 log("isMobileOk: isHipriProvisioning=" + isHipriProvisioning); 3278 3279 if (isDefaultProvisioning || isHipriProvisioning) { 3280 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3281 log("isMobileOk: X default || hipri is provisioning result=" + result); 3282 return result; 3283 } 3284 3285 try { 3286 // Continue trying to connect until time has run out 3287 long endTime = SystemClock.elapsedRealtime() + params.mTimeOutMs; 3288 3289 if (!mCs.isMobileDataStateTrackerReady()) { 3290 // Wait for MobileDataStateTracker to be ready. 3291 if (DBG) log("isMobileOk: mdst is not ready"); 3292 while(SystemClock.elapsedRealtime() < endTime) { 3293 if (mCs.isMobileDataStateTrackerReady()) { 3294 // Enable fail fast as we'll do retries here and use a 3295 // hipri connection so the default connection stays active. 3296 if (DBG) log("isMobileOk: mdst ready, enable fail fast of mobile data"); 3297 mCs.setEnableFailFastMobileData(DctConstants.ENABLED); 3298 break; 3299 } 3300 sleep(POLLING_SLEEP_SEC); 3301 } 3302 } 3303 3304 log("isMobileOk: start hipri url=" + params.mUrl); 3305 3306 // First wait until we can start using hipri 3307 Binder binder = new Binder(); 3308/* 3309 while(SystemClock.elapsedRealtime() < endTime) { 3310 int ret = mCs.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3311 Phone.FEATURE_ENABLE_HIPRI, binder); 3312 if ((ret == PhoneConstants.APN_ALREADY_ACTIVE) 3313 || (ret == PhoneConstants.APN_REQUEST_STARTED)) { 3314 log("isMobileOk: hipri started"); 3315 break; 3316 } 3317 if (VDBG) log("isMobileOk: hipri not started yet"); 3318 result = CMP_RESULT_CODE_NO_CONNECTION; 3319 sleep(POLLING_SLEEP_SEC); 3320 } 3321*/ 3322 // Continue trying to connect until time has run out 3323 while(SystemClock.elapsedRealtime() < endTime) { 3324 try { 3325 // Wait for hipri to connect. 3326 // TODO: Don't poll and handle situation where hipri fails 3327 // because default is retrying. See b/9569540 3328 NetworkInfo.State state = mCs 3329 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3330 if (state != NetworkInfo.State.CONNECTED) { 3331 if (true/*VDBG*/) { 3332 log("isMobileOk: not connected ni=" + 3333 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3334 } 3335 sleep(POLLING_SLEEP_SEC); 3336 result = CMP_RESULT_CODE_NO_CONNECTION; 3337 continue; 3338 } 3339 3340 // Hipri has started check if this is a provisioning url 3341 MobileDataStateTracker mdst = (MobileDataStateTracker) 3342 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3343 if (mdst.isProvisioningNetwork()) { 3344 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3345 if (DBG) log("isMobileOk: X isProvisioningNetwork result=" + result); 3346 return result; 3347 } else { 3348 if (DBG) log("isMobileOk: isProvisioningNetwork is false, continue"); 3349 } 3350 3351 // Get of the addresses associated with the url host. We need to use the 3352 // address otherwise HttpURLConnection object will use the name to get 3353 // the addresses and will try every address but that will bypass the 3354 // route to host we setup and the connection could succeed as the default 3355 // interface might be connected to the internet via wifi or other interface. 3356 InetAddress[] addresses; 3357 try { 3358 addresses = InetAddress.getAllByName(orgUri.getHost()); 3359 } catch (UnknownHostException e) { 3360 result = CMP_RESULT_CODE_NO_DNS; 3361 log("isMobileOk: X UnknownHostException result=" + result); 3362 return result; 3363 } 3364 log("isMobileOk: addresses=" + inetAddressesToString(addresses)); 3365 3366 // Get the type of addresses supported by this link 3367 LinkProperties lp = mCs.getLinkPropertiesForTypeInternal( 3368 ConnectivityManager.TYPE_MOBILE_HIPRI); 3369 boolean linkHasIpv4 = lp.hasIPv4Address(); 3370 boolean linkHasIpv6 = lp.hasGlobalIPv6Address(); 3371 log("isMobileOk: linkHasIpv4=" + linkHasIpv4 3372 + " linkHasIpv6=" + linkHasIpv6); 3373 3374 final ArrayList<InetAddress> validAddresses = 3375 new ArrayList<InetAddress>(addresses.length); 3376 3377 for (InetAddress addr : addresses) { 3378 if (((addr instanceof Inet4Address) && linkHasIpv4) || 3379 ((addr instanceof Inet6Address) && linkHasIpv6)) { 3380 validAddresses.add(addr); 3381 } 3382 } 3383 3384 if (validAddresses.size() == 0) { 3385 return CMP_RESULT_CODE_NO_CONNECTION; 3386 } 3387 3388 int addrTried = 0; 3389 while (true) { 3390 // Loop through at most MAX_LOOPS valid addresses or until 3391 // we run out of time 3392 if (addrTried++ >= MAX_LOOPS) { 3393 log("isMobileOk: too many loops tried - giving up"); 3394 break; 3395 } 3396 if (SystemClock.elapsedRealtime() >= endTime) { 3397 log("isMobileOk: spend too much time - giving up"); 3398 break; 3399 } 3400 3401 InetAddress hostAddr = validAddresses.get(rand.nextInt( 3402 validAddresses.size())); 3403 3404 // Make a route to host so we check the specific interface. 3405 if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI, 3406 hostAddr.getAddress())) { 3407 // Wait a short time to be sure the route is established ?? 3408 log("isMobileOk:" 3409 + " wait to establish route to hostAddr=" + hostAddr); 3410 sleep(NET_ROUTE_ESTABLISHMENT_SLEEP_SEC); 3411 } else { 3412 log("isMobileOk:" 3413 + " could not establish route to hostAddr=" + hostAddr); 3414 // Wait a short time before the next attempt 3415 sleep(NET_ERROR_SLEEP_SEC); 3416 continue; 3417 } 3418 3419 // Rewrite the url to have numeric address to use the specific route 3420 // using http for half the attempts and https for the other half. 3421 // Doing https first and http second as on a redirected walled garden 3422 // such as t-mobile uses we get a SocketTimeoutException: "SSL 3423 // handshake timed out" which we declare as 3424 // CMP_RESULT_CODE_NO_TCP_CONNECTION. We could change this, but by 3425 // having http second we will be using logic used for some time. 3426 URL newUrl; 3427 String scheme = (addrTried <= (MAX_LOOPS/2)) ? "https" : "http"; 3428 newUrl = new URL(scheme, hostAddr.getHostAddress(), 3429 orgUri.getPath()); 3430 log("isMobileOk: newUrl=" + newUrl); 3431 3432 HttpURLConnection urlConn = null; 3433 try { 3434 // Open the connection set the request headers and get the response 3435 urlConn = (HttpURLConnection)newUrl.openConnection( 3436 java.net.Proxy.NO_PROXY); 3437 if (scheme.equals("https")) { 3438 ((HttpsURLConnection)urlConn).setHostnameVerifier( 3439 new CheckMpHostnameVerifier(orgUri)); 3440 } 3441 urlConn.setInstanceFollowRedirects(false); 3442 urlConn.setConnectTimeout(SOCKET_TIMEOUT_MS); 3443 urlConn.setReadTimeout(SOCKET_TIMEOUT_MS); 3444 urlConn.setUseCaches(false); 3445 urlConn.setAllowUserInteraction(false); 3446 // Set the "Connection" to "Close" as by default "Keep-Alive" 3447 // is used which is useless in this case. 3448 urlConn.setRequestProperty("Connection", "close"); 3449 int responseCode = urlConn.getResponseCode(); 3450 3451 // For debug display the headers 3452 Map<String, List<String>> headers = urlConn.getHeaderFields(); 3453 log("isMobileOk: headers=" + headers); 3454 3455 // Close the connection 3456 urlConn.disconnect(); 3457 urlConn = null; 3458 3459 if (mTestingFailures) { 3460 // Pretend no connection, this tests using http and https 3461 result = CMP_RESULT_CODE_NO_CONNECTION; 3462 log("isMobileOk: TESTING_FAILURES, pretend no connction"); 3463 continue; 3464 } 3465 3466 if (responseCode == 204) { 3467 // Return 3468 result = CMP_RESULT_CODE_CONNECTABLE; 3469 log("isMobileOk: X got expected responseCode=" + responseCode 3470 + " result=" + result); 3471 return result; 3472 } else { 3473 // Retry to be sure this was redirected, we've gotten 3474 // occasions where a server returned 200 even though 3475 // the device didn't have a "warm" sim. 3476 log("isMobileOk: not expected responseCode=" + responseCode); 3477 // TODO - it would be nice in the single-address case to do 3478 // another DNS resolve here, but flushing the cache is a bit 3479 // heavy-handed. 3480 result = CMP_RESULT_CODE_REDIRECTED; 3481 } 3482 } catch (Exception e) { 3483 log("isMobileOk: HttpURLConnection Exception" + e); 3484 result = CMP_RESULT_CODE_NO_TCP_CONNECTION; 3485 if (urlConn != null) { 3486 urlConn.disconnect(); 3487 urlConn = null; 3488 } 3489 sleep(NET_ERROR_SLEEP_SEC); 3490 continue; 3491 } 3492 } 3493 log("isMobileOk: X loops|timed out result=" + result); 3494 return result; 3495 } catch (Exception e) { 3496 log("isMobileOk: Exception e=" + e); 3497 continue; 3498 } 3499 } 3500 log("isMobileOk: timed out"); 3501 } finally { 3502 log("isMobileOk: F stop hipri"); 3503 mCs.setEnableFailFastMobileData(DctConstants.DISABLED); 3504// mCs.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3505// Phone.FEATURE_ENABLE_HIPRI); 3506 3507 // Wait for hipri to disconnect. 3508 long endTime = SystemClock.elapsedRealtime() + 5000; 3509 3510 while(SystemClock.elapsedRealtime() < endTime) { 3511 NetworkInfo.State state = mCs 3512 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3513 if (state != NetworkInfo.State.DISCONNECTED) { 3514 if (VDBG) { 3515 log("isMobileOk: connected ni=" + 3516 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3517 } 3518 sleep(POLLING_SLEEP_SEC); 3519 continue; 3520 } 3521 } 3522 3523 log("isMobileOk: X result=" + result); 3524 } 3525 return result; 3526 } 3527 3528 @Override 3529 protected Integer doInBackground(Params... params) { 3530 return isMobileOk(params[0]); 3531 } 3532 3533 @Override 3534 protected void onPostExecute(Integer result) { 3535 log("onPostExecute: result=" + result); 3536 if ((mParams != null) && (mParams.mCb != null)) { 3537 mParams.mCb.onComplete(result); 3538 } 3539 } 3540 3541 private String inetAddressesToString(InetAddress[] addresses) { 3542 StringBuffer sb = new StringBuffer(); 3543 boolean firstTime = true; 3544 for(InetAddress addr : addresses) { 3545 if (firstTime) { 3546 firstTime = false; 3547 } else { 3548 sb.append(","); 3549 } 3550 sb.append(addr); 3551 } 3552 return sb.toString(); 3553 } 3554 3555 private void printNetworkInfo() { 3556 boolean hasIccCard = mTm.hasIccCard(); 3557 int simState = mTm.getSimState(); 3558 log("hasIccCard=" + hasIccCard 3559 + " simState=" + simState); 3560 NetworkInfo[] ni = mCs.getAllNetworkInfo(); 3561 if (ni != null) { 3562 log("ni.length=" + ni.length); 3563 for (NetworkInfo netInfo: ni) { 3564 log("netInfo=" + netInfo.toString()); 3565 } 3566 } else { 3567 log("no network info ni=null"); 3568 } 3569 } 3570 3571 /** 3572 * Sleep for a few seconds then return. 3573 * @param seconds 3574 */ 3575 private static void sleep(int seconds) { 3576 long stopTime = System.nanoTime() + (seconds * 1000000000); 3577 long sleepTime; 3578 while ((sleepTime = stopTime - System.nanoTime()) > 0) { 3579 try { 3580 Thread.sleep(sleepTime / 1000000); 3581 } catch (InterruptedException ignored) { 3582 } 3583 } 3584 } 3585 3586 private static void log(String s) { 3587 Slog.d(ConnectivityService.TAG, "[" + CHECKMP_TAG + "] " + s); 3588 } 3589 } 3590 3591 // TODO: Move to ConnectivityManager and make public? 3592 private static final String CONNECTED_TO_PROVISIONING_NETWORK_ACTION = 3593 "com.android.server.connectivityservice.CONNECTED_TO_PROVISIONING_NETWORK_ACTION"; 3594 3595 private BroadcastReceiver mProvisioningReceiver = new BroadcastReceiver() { 3596 @Override 3597 public void onReceive(Context context, Intent intent) { 3598 if (intent.getAction().equals(CONNECTED_TO_PROVISIONING_NETWORK_ACTION)) { 3599 handleMobileProvisioningAction(intent.getStringExtra("EXTRA_URL")); 3600 } 3601 } 3602 }; 3603 3604 private void handleMobileProvisioningAction(String url) { 3605 // Mark notification as not visible 3606 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3607 3608 // Check airplane mode 3609 boolean isAirplaneModeOn = Settings.System.getInt(mContext.getContentResolver(), 3610 Settings.Global.AIRPLANE_MODE_ON, 0) == 1; 3611 // If provisioning network and not in airplane mode handle as a special case, 3612 // otherwise launch browser with the intent directly. 3613 if (mIsProvisioningNetwork.get() && !isAirplaneModeOn) { 3614 if (DBG) log("handleMobileProvisioningAction: on prov network enable then launch"); 3615 mIsProvisioningNetwork.set(false); 3616// mIsStartingProvisioning.set(true); 3617// MobileDataStateTracker mdst = (MobileDataStateTracker) 3618// mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3619 // Radio was disabled on CMP_RESULT_CODE_PROVISIONING_NETWORK, enable it here 3620// mdst.setRadio(true); 3621// mdst.setEnableFailFastMobileData(DctConstants.ENABLED); 3622// mdst.enableMobileProvisioning(url); 3623 } else { 3624 if (DBG) log("handleMobileProvisioningAction: not prov network"); 3625 mIsProvisioningNetwork.set(false); 3626 // Check for apps that can handle provisioning first 3627 Intent provisioningIntent = new Intent(TelephonyIntents.ACTION_CARRIER_SETUP); 3628 List<String> carrierPackages = 3629 mTelephonyManager.getCarrierPackageNamesForIntent(provisioningIntent); 3630 if (carrierPackages != null && !carrierPackages.isEmpty()) { 3631 if (carrierPackages.size() != 1) { 3632 if (DBG) log("Multiple matching carrier apps found, launching the first."); 3633 } 3634 provisioningIntent.setPackage(carrierPackages.get(0)); 3635 provisioningIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3636 Intent.FLAG_ACTIVITY_NEW_TASK); 3637 mContext.startActivity(provisioningIntent); 3638 } else { 3639 // If no apps exist, use standard URL ACTION_VIEW method 3640 Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, 3641 Intent.CATEGORY_APP_BROWSER); 3642 newIntent.setData(Uri.parse(url)); 3643 newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3644 Intent.FLAG_ACTIVITY_NEW_TASK); 3645 try { 3646 mContext.startActivity(newIntent); 3647 } catch (ActivityNotFoundException e) { 3648 loge("handleMobileProvisioningAction: startActivity failed" + e); 3649 } 3650 } 3651 } 3652 } 3653 3654 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 3655 private volatile boolean mIsNotificationVisible = false; 3656 3657 private void setProvNotificationVisible(boolean visible, int networkType, String extraInfo, 3658 String url) { 3659 if (DBG) { 3660 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 3661 + " extraInfo=" + extraInfo + " url=" + url); 3662 } 3663 Intent intent = null; 3664 PendingIntent pendingIntent = null; 3665 if (visible) { 3666 switch (networkType) { 3667 case ConnectivityManager.TYPE_WIFI: 3668 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3669 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3670 Intent.FLAG_ACTIVITY_NEW_TASK); 3671 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3672 break; 3673 case ConnectivityManager.TYPE_MOBILE: 3674 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3675 intent = new Intent(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 3676 intent.putExtra("EXTRA_URL", url); 3677 intent.setFlags(0); 3678 pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 3679 break; 3680 default: 3681 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3682 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3683 Intent.FLAG_ACTIVITY_NEW_TASK); 3684 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3685 break; 3686 } 3687 } 3688 // Concatenate the range of types onto the range of NetIDs. 3689 int id = MAX_NET_ID + 1 + (networkType - ConnectivityManager.TYPE_NONE); 3690 setProvNotificationVisibleIntent(visible, id, networkType, extraInfo, pendingIntent); 3691 } 3692 3693 /** 3694 * Show or hide network provisioning notificaitons. 3695 * 3696 * @param id an identifier that uniquely identifies this notification. This must match 3697 * between show and hide calls. We use the NetID value but for legacy callers 3698 * we concatenate the range of types with the range of NetIDs. 3699 */ 3700 private void setProvNotificationVisibleIntent(boolean visible, int id, int networkType, 3701 String extraInfo, PendingIntent intent) { 3702 if (DBG) { 3703 log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + 3704 networkType + " extraInfo=" + extraInfo); 3705 } 3706 3707 Resources r = Resources.getSystem(); 3708 NotificationManager notificationManager = (NotificationManager) mContext 3709 .getSystemService(Context.NOTIFICATION_SERVICE); 3710 3711 if (visible) { 3712 CharSequence title; 3713 CharSequence details; 3714 int icon; 3715 Notification notification = new Notification(); 3716 switch (networkType) { 3717 case ConnectivityManager.TYPE_WIFI: 3718 title = r.getString(R.string.wifi_available_sign_in, 0); 3719 details = r.getString(R.string.network_available_sign_in_detailed, 3720 extraInfo); 3721 icon = R.drawable.stat_notify_wifi_in_range; 3722 break; 3723 case ConnectivityManager.TYPE_MOBILE: 3724 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3725 title = r.getString(R.string.network_available_sign_in, 0); 3726 // TODO: Change this to pull from NetworkInfo once a printable 3727 // name has been added to it 3728 details = mTelephonyManager.getNetworkOperatorName(); 3729 icon = R.drawable.stat_notify_rssi_in_range; 3730 break; 3731 default: 3732 title = r.getString(R.string.network_available_sign_in, 0); 3733 details = r.getString(R.string.network_available_sign_in_detailed, 3734 extraInfo); 3735 icon = R.drawable.stat_notify_rssi_in_range; 3736 break; 3737 } 3738 3739 notification.when = 0; 3740 notification.icon = icon; 3741 notification.flags = Notification.FLAG_AUTO_CANCEL; 3742 notification.tickerText = title; 3743 notification.color = mContext.getResources().getColor( 3744 com.android.internal.R.color.system_notification_accent_color); 3745 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 3746 notification.contentIntent = intent; 3747 3748 try { 3749 notificationManager.notify(NOTIFICATION_ID, id, notification); 3750 } catch (NullPointerException npe) { 3751 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 3752 npe.printStackTrace(); 3753 } 3754 } else { 3755 try { 3756 notificationManager.cancel(NOTIFICATION_ID, id); 3757 } catch (NullPointerException npe) { 3758 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 3759 npe.printStackTrace(); 3760 } 3761 } 3762 mIsNotificationVisible = visible; 3763 } 3764 3765 /** Location to an updatable file listing carrier provisioning urls. 3766 * An example: 3767 * 3768 * <?xml version="1.0" encoding="utf-8"?> 3769 * <provisioningUrls> 3770 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 3771 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 3772 * </provisioningUrls> 3773 */ 3774 private static final String PROVISIONING_URL_PATH = 3775 "/data/misc/radio/provisioning_urls.xml"; 3776 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 3777 3778 /** XML tag for root element. */ 3779 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 3780 /** XML tag for individual url */ 3781 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 3782 /** XML tag for redirected url */ 3783 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 3784 /** XML attribute for mcc */ 3785 private static final String ATTR_MCC = "mcc"; 3786 /** XML attribute for mnc */ 3787 private static final String ATTR_MNC = "mnc"; 3788 3789 private static final int REDIRECTED_PROVISIONING = 1; 3790 private static final int PROVISIONING = 2; 3791 3792 private String getProvisioningUrlBaseFromFile(int type) { 3793 FileReader fileReader = null; 3794 XmlPullParser parser = null; 3795 Configuration config = mContext.getResources().getConfiguration(); 3796 String tagType; 3797 3798 switch (type) { 3799 case PROVISIONING: 3800 tagType = TAG_PROVISIONING_URL; 3801 break; 3802 case REDIRECTED_PROVISIONING: 3803 tagType = TAG_REDIRECTED_URL; 3804 break; 3805 default: 3806 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 3807 type); 3808 } 3809 3810 try { 3811 fileReader = new FileReader(mProvisioningUrlFile); 3812 parser = Xml.newPullParser(); 3813 parser.setInput(fileReader); 3814 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 3815 3816 while (true) { 3817 XmlUtils.nextElement(parser); 3818 3819 String element = parser.getName(); 3820 if (element == null) break; 3821 3822 if (element.equals(tagType)) { 3823 String mcc = parser.getAttributeValue(null, ATTR_MCC); 3824 try { 3825 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 3826 String mnc = parser.getAttributeValue(null, ATTR_MNC); 3827 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 3828 parser.next(); 3829 if (parser.getEventType() == XmlPullParser.TEXT) { 3830 return parser.getText(); 3831 } 3832 } 3833 } 3834 } catch (NumberFormatException e) { 3835 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 3836 } 3837 } 3838 } 3839 return null; 3840 } catch (FileNotFoundException e) { 3841 loge("Carrier Provisioning Urls file not found"); 3842 } catch (XmlPullParserException e) { 3843 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 3844 } catch (IOException e) { 3845 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 3846 } finally { 3847 if (fileReader != null) { 3848 try { 3849 fileReader.close(); 3850 } catch (IOException e) {} 3851 } 3852 } 3853 return null; 3854 } 3855 3856 @Override 3857 public String getMobileRedirectedProvisioningUrl() { 3858 enforceConnectivityInternalPermission(); 3859 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 3860 if (TextUtils.isEmpty(url)) { 3861 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 3862 } 3863 return url; 3864 } 3865 3866 @Override 3867 public String getMobileProvisioningUrl() { 3868 enforceConnectivityInternalPermission(); 3869 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 3870 if (TextUtils.isEmpty(url)) { 3871 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 3872 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 3873 } else { 3874 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 3875 } 3876 // populate the iccid, imei and phone number in the provisioning url. 3877 if (!TextUtils.isEmpty(url)) { 3878 String phoneNumber = mTelephonyManager.getLine1Number(); 3879 if (TextUtils.isEmpty(phoneNumber)) { 3880 phoneNumber = "0000000000"; 3881 } 3882 url = String.format(url, 3883 mTelephonyManager.getSimSerialNumber() /* ICCID */, 3884 mTelephonyManager.getDeviceId() /* IMEI */, 3885 phoneNumber /* Phone numer */); 3886 } 3887 3888 return url; 3889 } 3890 3891 @Override 3892 public void setProvisioningNotificationVisible(boolean visible, int networkType, 3893 String extraInfo, String url) { 3894 enforceConnectivityInternalPermission(); 3895 setProvNotificationVisible(visible, networkType, extraInfo, url); 3896 } 3897 3898 @Override 3899 public void setAirplaneMode(boolean enable) { 3900 enforceConnectivityInternalPermission(); 3901 final long ident = Binder.clearCallingIdentity(); 3902 try { 3903 final ContentResolver cr = mContext.getContentResolver(); 3904 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 3905 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 3906 intent.putExtra("state", enable); 3907 mContext.sendBroadcast(intent); 3908 } finally { 3909 Binder.restoreCallingIdentity(ident); 3910 } 3911 } 3912 3913 private void onUserStart(int userId) { 3914 synchronized(mVpns) { 3915 Vpn userVpn = mVpns.get(userId); 3916 if (userVpn != null) { 3917 loge("Starting user already has a VPN"); 3918 return; 3919 } 3920 userVpn = new Vpn(mHandler.getLooper(), mContext, mNetd, this, userId); 3921 mVpns.put(userId, userVpn); 3922 } 3923 } 3924 3925 private void onUserStop(int userId) { 3926 synchronized(mVpns) { 3927 Vpn userVpn = mVpns.get(userId); 3928 if (userVpn == null) { 3929 loge("Stopping user has no VPN"); 3930 return; 3931 } 3932 mVpns.delete(userId); 3933 } 3934 } 3935 3936 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 3937 @Override 3938 public void onReceive(Context context, Intent intent) { 3939 final String action = intent.getAction(); 3940 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3941 if (userId == UserHandle.USER_NULL) return; 3942 3943 if (Intent.ACTION_USER_STARTING.equals(action)) { 3944 onUserStart(userId); 3945 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 3946 onUserStop(userId); 3947 } 3948 } 3949 }; 3950 3951 @Override 3952 public LinkQualityInfo getLinkQualityInfo(int networkType) { 3953 enforceAccessPermission(); 3954 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 3955 return mNetTrackers[networkType].getLinkQualityInfo(); 3956 } else { 3957 return null; 3958 } 3959 } 3960 3961 @Override 3962 public LinkQualityInfo getActiveLinkQualityInfo() { 3963 enforceAccessPermission(); 3964 if (isNetworkTypeValid(mActiveDefaultNetwork) && 3965 mNetTrackers[mActiveDefaultNetwork] != null) { 3966 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 3967 } else { 3968 return null; 3969 } 3970 } 3971 3972 @Override 3973 public LinkQualityInfo[] getAllLinkQualityInfo() { 3974 enforceAccessPermission(); 3975 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 3976 for (NetworkStateTracker tracker : mNetTrackers) { 3977 if (tracker != null) { 3978 LinkQualityInfo li = tracker.getLinkQualityInfo(); 3979 if (li != null) { 3980 result.add(li); 3981 } 3982 } 3983 } 3984 3985 return result.toArray(new LinkQualityInfo[result.size()]); 3986 } 3987 3988 /* Infrastructure for network sampling */ 3989 3990 private void handleNetworkSamplingTimeout() { 3991 3992 if (SAMPLE_DBG) log("Sampling interval elapsed, updating statistics .."); 3993 3994 // initialize list of interfaces .. 3995 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 3996 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 3997 for (NetworkStateTracker tracker : mNetTrackers) { 3998 if (tracker != null) { 3999 String ifaceName = tracker.getNetworkInterfaceName(); 4000 if (ifaceName != null) { 4001 mapIfaceToSample.put(ifaceName, null); 4002 } 4003 } 4004 } 4005 4006 // Read samples for all interfaces 4007 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 4008 4009 // process samples for all networks 4010 for (NetworkStateTracker tracker : mNetTrackers) { 4011 if (tracker != null) { 4012 String ifaceName = tracker.getNetworkInterfaceName(); 4013 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 4014 if (ss != null) { 4015 // end the previous sampling cycle 4016 tracker.stopSampling(ss); 4017 // start a new sampling cycle .. 4018 tracker.startSampling(ss); 4019 } 4020 } 4021 } 4022 4023 if (SAMPLE_DBG) log("Done."); 4024 4025 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 4026 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 4027 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 4028 4029 if (SAMPLE_DBG) { 4030 log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 4031 } 4032 4033 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 4034 } 4035 4036 /** 4037 * Sets a network sampling alarm. 4038 */ 4039 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 4040 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 4041 int alarmType; 4042 if (Resources.getSystem().getBoolean( 4043 R.bool.config_networkSamplingWakesDevice)) { 4044 alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP; 4045 } else { 4046 alarmType = AlarmManager.ELAPSED_REALTIME; 4047 } 4048 mAlarmManager.set(alarmType, wakeupTime, intent); 4049 } 4050 4051 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 4052 new HashMap<Messenger, NetworkFactoryInfo>(); 4053 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 4054 new HashMap<NetworkRequest, NetworkRequestInfo>(); 4055 4056 private static class NetworkFactoryInfo { 4057 public final String name; 4058 public final Messenger messenger; 4059 public final AsyncChannel asyncChannel; 4060 4061 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 4062 this.name = name; 4063 this.messenger = messenger; 4064 this.asyncChannel = asyncChannel; 4065 } 4066 } 4067 4068 /** 4069 * Tracks info about the requester. 4070 * Also used to notice when the calling process dies so we can self-expire 4071 */ 4072 private class NetworkRequestInfo implements IBinder.DeathRecipient { 4073 static final boolean REQUEST = true; 4074 static final boolean LISTEN = false; 4075 4076 final NetworkRequest request; 4077 IBinder mBinder; 4078 final int mPid; 4079 final int mUid; 4080 final Messenger messenger; 4081 final boolean isRequest; 4082 4083 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 4084 super(); 4085 messenger = m; 4086 request = r; 4087 mBinder = binder; 4088 mPid = getCallingPid(); 4089 mUid = getCallingUid(); 4090 this.isRequest = isRequest; 4091 4092 try { 4093 mBinder.linkToDeath(this, 0); 4094 } catch (RemoteException e) { 4095 binderDied(); 4096 } 4097 } 4098 4099 void unlinkDeathRecipient() { 4100 mBinder.unlinkToDeath(this, 0); 4101 } 4102 4103 public void binderDied() { 4104 log("ConnectivityService NetworkRequestInfo binderDied(" + 4105 request + ", " + mBinder + ")"); 4106 releaseNetworkRequest(request); 4107 } 4108 4109 public String toString() { 4110 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 4111 mPid + " for " + request; 4112 } 4113 } 4114 4115 @Override 4116 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 4117 Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { 4118 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 4119 == false) { 4120 enforceConnectivityInternalPermission(); 4121 } else { 4122 enforceChangePermission(); 4123 } 4124 4125 networkCapabilities = new NetworkCapabilities(networkCapabilities); 4126 4127 // if UID is restricted, don't allow them to bring up metered APNs 4128 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED) 4129 == false) { 4130 final int uidRules; 4131 final int uid = Binder.getCallingUid(); 4132 synchronized(mRulesLock) { 4133 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 4134 } 4135 if ((uidRules & RULE_REJECT_METERED) != 0) { 4136 // we could silently fail or we can filter the available nets to only give 4137 // them those they have access to. Chose the more useful 4138 networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 4139 } 4140 } 4141 4142 if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { 4143 throw new IllegalArgumentException("Bad timeout specified"); 4144 } 4145 NetworkRequest networkRequest = new NetworkRequest(networkCapabilities, legacyType, 4146 nextNetworkRequestId()); 4147 if (DBG) log("requestNetwork for " + networkRequest); 4148 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4149 NetworkRequestInfo.REQUEST); 4150 4151 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 4152 if (timeoutMs > 0) { 4153 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 4154 nri), timeoutMs); 4155 } 4156 return networkRequest; 4157 } 4158 4159 @Override 4160 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 4161 PendingIntent operation) { 4162 // TODO 4163 return null; 4164 } 4165 4166 @Override 4167 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 4168 Messenger messenger, IBinder binder) { 4169 enforceAccessPermission(); 4170 4171 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 4172 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 4173 if (DBG) log("listenForNetwork for " + networkRequest); 4174 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4175 NetworkRequestInfo.LISTEN); 4176 4177 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 4178 return networkRequest; 4179 } 4180 4181 @Override 4182 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 4183 PendingIntent operation) { 4184 } 4185 4186 @Override 4187 public void releaseNetworkRequest(NetworkRequest networkRequest) { 4188 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), 4189 0, networkRequest)); 4190 } 4191 4192 @Override 4193 public void registerNetworkFactory(Messenger messenger, String name) { 4194 enforceConnectivityInternalPermission(); 4195 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 4196 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 4197 } 4198 4199 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 4200 if (DBG) log("Got NetworkFactory Messenger for " + nfi.name); 4201 mNetworkFactoryInfos.put(nfi.messenger, nfi); 4202 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 4203 } 4204 4205 @Override 4206 public void unregisterNetworkFactory(Messenger messenger) { 4207 enforceConnectivityInternalPermission(); 4208 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 4209 } 4210 4211 private void handleUnregisterNetworkFactory(Messenger messenger) { 4212 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 4213 if (nfi == null) { 4214 loge("Failed to find Messenger in unregisterNetworkFactory"); 4215 return; 4216 } 4217 if (DBG) log("unregisterNetworkFactory for " + nfi.name); 4218 } 4219 4220 /** 4221 * NetworkAgentInfo supporting a request by requestId. 4222 * These have already been vetted (their Capabilities satisfy the request) 4223 * and the are the highest scored network available. 4224 * the are keyed off the Requests requestId. 4225 */ 4226 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 4227 new SparseArray<NetworkAgentInfo>(); 4228 4229 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 4230 new SparseArray<NetworkAgentInfo>(); 4231 4232 // NetworkAgentInfo keyed off its connecting messenger 4233 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 4234 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 4235 new HashMap<Messenger, NetworkAgentInfo>(); 4236 4237 private final NetworkRequest mDefaultRequest; 4238 4239 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 4240 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 4241 } 4242 4243 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 4244 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 4245 int currentScore, NetworkMisc networkMisc) { 4246 enforceConnectivityInternalPermission(); 4247 4248 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), 4249 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 4250 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler, 4251 new NetworkMisc(networkMisc)); 4252 synchronized (this) { 4253 nai.networkMonitor.systemReady = mSystemReady; 4254 } 4255 if (DBG) log("registerNetworkAgent " + nai); 4256 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 4257 } 4258 4259 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 4260 if (VDBG) log("Got NetworkAgent Messenger"); 4261 mNetworkAgentInfos.put(na.messenger, na); 4262 assignNextNetId(na); 4263 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 4264 NetworkInfo networkInfo = na.networkInfo; 4265 na.networkInfo = null; 4266 updateNetworkInfo(na, networkInfo); 4267 } 4268 4269 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 4270 LinkProperties newLp = networkAgent.linkProperties; 4271 int netId = networkAgent.network.netId; 4272 4273 updateInterfaces(newLp, oldLp, netId); 4274 updateMtu(newLp, oldLp); 4275 updateTcpBufferSizes(networkAgent); 4276 // TODO - figure out what to do for clat 4277// for (LinkProperties lp : newLp.getStackedLinks()) { 4278// updateMtu(lp, null); 4279// } 4280 final boolean flushDns = updateRoutes(newLp, oldLp, netId); 4281 updateDnses(newLp, oldLp, netId, flushDns); 4282 updateClat(newLp, oldLp, networkAgent); 4283 if (isDefaultNetwork(networkAgent)) handleApplyDefaultProxy(newLp.getHttpProxy()); 4284 } 4285 4286 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { 4287 // Update 464xlat state. 4288 if (mClat.requiresClat(na)) { 4289 4290 // If the connection was previously using clat, but is not using it now, stop the clat 4291 // daemon. Normally, this happens automatically when the connection disconnects, but if 4292 // the disconnect is not reported, or if the connection's LinkProperties changed for 4293 // some other reason (e.g., handoff changes the IP addresses on the link), it would 4294 // still be running. If it's not running, then stopping it is a no-op. 4295 if (Nat464Xlat.isRunningClat(oldLp) && !Nat464Xlat.isRunningClat(newLp)) { 4296 mClat.stopClat(); 4297 } 4298 // If the link requires clat to be running, then start the daemon now. 4299 if (na.networkInfo.isConnected()) { 4300 mClat.startClat(na); 4301 } else { 4302 mClat.stopClat(); 4303 } 4304 } 4305 } 4306 4307 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 4308 CompareResult<String> interfaceDiff = new CompareResult<String>(); 4309 if (oldLp != null) { 4310 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 4311 } else if (newLp != null) { 4312 interfaceDiff.added = newLp.getAllInterfaceNames(); 4313 } 4314 for (String iface : interfaceDiff.added) { 4315 try { 4316 if (DBG) log("Adding iface " + iface + " to network " + netId); 4317 mNetd.addInterfaceToNetwork(iface, netId); 4318 } catch (Exception e) { 4319 loge("Exception adding interface: " + e); 4320 } 4321 } 4322 for (String iface : interfaceDiff.removed) { 4323 try { 4324 if (DBG) log("Removing iface " + iface + " from network " + netId); 4325 mNetd.removeInterfaceFromNetwork(iface, netId); 4326 } catch (Exception e) { 4327 loge("Exception removing interface: " + e); 4328 } 4329 } 4330 } 4331 4332 /** 4333 * Have netd update routes from oldLp to newLp. 4334 * @return true if routes changed between oldLp and newLp 4335 */ 4336 private boolean updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 4337 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 4338 if (oldLp != null) { 4339 routeDiff = oldLp.compareAllRoutes(newLp); 4340 } else if (newLp != null) { 4341 routeDiff.added = newLp.getAllRoutes(); 4342 } 4343 4344 // add routes before removing old in case it helps with continuous connectivity 4345 4346 // do this twice, adding non-nexthop routes first, then routes they are dependent on 4347 for (RouteInfo route : routeDiff.added) { 4348 if (route.hasGateway()) continue; 4349 if (DBG) log("Adding Route [" + route + "] to network " + netId); 4350 try { 4351 mNetd.addRoute(netId, route); 4352 } catch (Exception e) { 4353 if ((route.getDestination().getAddress() instanceof Inet4Address) || VDBG) { 4354 loge("Exception in addRoute for non-gateway: " + e); 4355 } 4356 } 4357 } 4358 for (RouteInfo route : routeDiff.added) { 4359 if (route.hasGateway() == false) continue; 4360 if (DBG) log("Adding Route [" + route + "] to network " + netId); 4361 try { 4362 mNetd.addRoute(netId, route); 4363 } catch (Exception e) { 4364 if ((route.getGateway() instanceof Inet4Address) || VDBG) { 4365 loge("Exception in addRoute for gateway: " + e); 4366 } 4367 } 4368 } 4369 4370 for (RouteInfo route : routeDiff.removed) { 4371 if (DBG) log("Removing Route [" + route + "] from network " + netId); 4372 try { 4373 mNetd.removeRoute(netId, route); 4374 } catch (Exception e) { 4375 loge("Exception in removeRoute: " + e); 4376 } 4377 } 4378 return !routeDiff.added.isEmpty() || !routeDiff.removed.isEmpty(); 4379 } 4380 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId, boolean flush) { 4381 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 4382 Collection<InetAddress> dnses = newLp.getDnsServers(); 4383 if (dnses.size() == 0 && mDefaultDns != null) { 4384 dnses = new ArrayList(); 4385 dnses.add(mDefaultDns); 4386 if (DBG) { 4387 loge("no dns provided for netId " + netId + ", so using defaults"); 4388 } 4389 } 4390 if (DBG) log("Setting Dns servers for network " + netId + " to " + dnses); 4391 try { 4392 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 4393 newLp.getDomains()); 4394 } catch (Exception e) { 4395 loge("Exception in setDnsServersForNetwork: " + e); 4396 } 4397 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 4398 if (defaultNai != null && defaultNai.network.netId == netId) { 4399 setDefaultDnsSystemProperties(dnses); 4400 } 4401 flushVmDnsCache(); 4402 } else if (flush) { 4403 try { 4404 mNetd.flushNetworkDnsCache(netId); 4405 } catch (Exception e) { 4406 loge("Exception in flushNetworkDnsCache: " + e); 4407 } 4408 flushVmDnsCache(); 4409 } 4410 } 4411 4412 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 4413 int last = 0; 4414 for (InetAddress dns : dnses) { 4415 ++last; 4416 String key = "net.dns" + last; 4417 String value = dns.getHostAddress(); 4418 SystemProperties.set(key, value); 4419 } 4420 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 4421 String key = "net.dns" + i; 4422 SystemProperties.set(key, ""); 4423 } 4424 mNumDnsEntries = last; 4425 } 4426 4427 4428 private void updateCapabilities(NetworkAgentInfo networkAgent, 4429 NetworkCapabilities networkCapabilities) { 4430 // TODO - what else here? Verify still satisfies everybody? 4431 // Check if satisfies somebody new? call callbacks? 4432 synchronized (networkAgent) { 4433 networkAgent.networkCapabilities = networkCapabilities; 4434 } 4435 } 4436 4437 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 4438 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 4439 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 4440 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 4441 networkRequest); 4442 } 4443 } 4444 4445 private void callCallbackForRequest(NetworkRequestInfo nri, 4446 NetworkAgentInfo networkAgent, int notificationType) { 4447 if (nri.messenger == null) return; // Default request has no msgr 4448 Object o; 4449 int a1 = 0; 4450 int a2 = 0; 4451 switch (notificationType) { 4452 case ConnectivityManager.CALLBACK_LOSING: 4453 a1 = 30 * 1000; // TODO - read this from NetworkMonitor 4454 // fall through 4455 case ConnectivityManager.CALLBACK_PRECHECK: 4456 case ConnectivityManager.CALLBACK_AVAILABLE: 4457 case ConnectivityManager.CALLBACK_LOST: 4458 case ConnectivityManager.CALLBACK_CAP_CHANGED: 4459 case ConnectivityManager.CALLBACK_IP_CHANGED: { 4460 o = new NetworkRequest(nri.request); 4461 a2 = networkAgent.network.netId; 4462 break; 4463 } 4464 case ConnectivityManager.CALLBACK_UNAVAIL: 4465 case ConnectivityManager.CALLBACK_RELEASED: { 4466 o = new NetworkRequest(nri.request); 4467 break; 4468 } 4469 default: { 4470 loge("Unknown notificationType " + notificationType); 4471 return; 4472 } 4473 } 4474 Message msg = Message.obtain(); 4475 msg.arg1 = a1; 4476 msg.arg2 = a2; 4477 msg.obj = o; 4478 msg.what = notificationType; 4479 try { 4480 if (VDBG) { 4481 log("sending notification " + notifyTypeToName(notificationType) + 4482 " for " + nri.request); 4483 } 4484 nri.messenger.send(msg); 4485 } catch (RemoteException e) { 4486 // may occur naturally in the race of binder death. 4487 loge("RemoteException caught trying to send a callback msg for " + nri.request); 4488 } 4489 } 4490 4491 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 4492 if (oldNetwork == null) { 4493 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 4494 return; 4495 } 4496 if (DBG) { 4497 log("handleLingerComplete for " + oldNetwork.name()); 4498 for (int i = 0; i < oldNetwork.networkRequests.size(); i++) { 4499 NetworkRequest nr = oldNetwork.networkRequests.valueAt(i); 4500 // Ignore listening requests. 4501 if (mNetworkRequests.get(nr).isRequest == false) continue; 4502 loge("Dead network still had at least " + nr); 4503 break; 4504 } 4505 } 4506 oldNetwork.asyncChannel.disconnect(); 4507 } 4508 4509 private void makeDefault(NetworkAgentInfo newNetwork) { 4510 if (DBG) log("Switching to new default network: " + newNetwork); 4511 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4512 setupDataActivityTracking(newNetwork); 4513 try { 4514 mNetd.setDefaultNetId(newNetwork.network.netId); 4515 } catch (Exception e) { 4516 loge("Exception setting default network :" + e); 4517 } 4518 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 4519 updateTcpBufferSizes(newNetwork); 4520 } 4521 4522 // Handles a network appearing or improving its score. 4523 // 4524 // - Evaluates all current NetworkRequests that can be 4525 // satisfied by newNetwork, and reassigns to newNetwork 4526 // any such requests for which newNetwork is the best. 4527 // 4528 // - Tears down any Networks that as a result are no longer 4529 // needed. A network is needed if it is the best network for 4530 // one or more NetworkRequests, or if it is a VPN. 4531 // 4532 // - Tears down newNetwork if it is validated but turns out to be 4533 // unneeded. Does not tear down newNetwork if it is 4534 // unvalidated, because future validation may improve 4535 // newNetwork's score enough that it is needed. 4536 // 4537 // NOTE: This function only adds NetworkRequests that "newNetwork" could satisfy, 4538 // it does not remove NetworkRequests that other Networks could better satisfy. 4539 // If you need to handle decreases in score, use {@link rematchAllNetworksAndRequests}. 4540 // This function should be used when possible instead of {@code rematchAllNetworksAndRequests} 4541 // as it performs better by a factor of the number of Networks. 4542 private void rematchNetworkAndRequests(NetworkAgentInfo newNetwork) { 4543 boolean keep = newNetwork.isVPN(); 4544 boolean isNewDefault = false; 4545 if (DBG) log("rematching " + newNetwork.name()); 4546 // Find and migrate to this Network any NetworkRequests for 4547 // which this network is now the best. 4548 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 4549 if (VDBG) log(" network has: " + newNetwork.networkCapabilities); 4550 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 4551 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 4552 if (newNetwork == currentNetwork) { 4553 if (DBG) { 4554 log("Network " + newNetwork.name() + " was already satisfying" + 4555 " request " + nri.request.requestId + ". No change."); 4556 } 4557 keep = true; 4558 continue; 4559 } 4560 4561 // check if it satisfies the NetworkCapabilities 4562 if (VDBG) log(" checking if request is satisfied: " + nri.request); 4563 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 4564 newNetwork.networkCapabilities)) { 4565 if (!nri.isRequest) { 4566 // This is not a request, it's a callback listener. 4567 // Add it to newNetwork regardless of score. 4568 newNetwork.addRequest(nri.request); 4569 continue; 4570 } 4571 4572 // next check if it's better than any current network we're using for 4573 // this request 4574 if (VDBG) { 4575 log("currentScore = " + 4576 (currentNetwork != null ? currentNetwork.getCurrentScore() : 0) + 4577 ", newScore = " + newNetwork.getCurrentScore()); 4578 } 4579 if (currentNetwork == null || 4580 currentNetwork.getCurrentScore() < newNetwork.getCurrentScore()) { 4581 if (currentNetwork != null) { 4582 if (DBG) log(" accepting network in place of " + currentNetwork.name()); 4583 currentNetwork.networkRequests.remove(nri.request.requestId); 4584 currentNetwork.networkLingered.add(nri.request); 4585 affectedNetworks.add(currentNetwork); 4586 } else { 4587 if (DBG) log(" accepting network in place of null"); 4588 } 4589 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 4590 newNetwork.addRequest(nri.request); 4591 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 4592 mLegacyTypeTracker.add(nri.request.legacyType, newNetwork); 4593 } 4594 keep = true; 4595 // Tell NetworkFactories about the new score, so they can stop 4596 // trying to connect if they know they cannot match it. 4597 // TODO - this could get expensive if we have alot of requests for this 4598 // network. Think about if there is a way to reduce this. Push 4599 // netid->request mapping to each factory? 4600 sendUpdatedScoreToFactories(nri.request, newNetwork.getCurrentScore()); 4601 if (mDefaultRequest.requestId == nri.request.requestId) { 4602 isNewDefault = true; 4603 // TODO: Remove following line. It's redundant with makeDefault call. 4604 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4605 if (newNetwork.linkProperties != null) { 4606 updateTcpBufferSizes(newNetwork); 4607 setDefaultDnsSystemProperties( 4608 newNetwork.linkProperties.getDnsServers()); 4609 } else { 4610 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 4611 } 4612 // Maintain the illusion: since the legacy API only 4613 // understands one network at a time, we must pretend 4614 // that the current default network disconnected before 4615 // the new one connected. 4616 if (currentNetwork != null) { 4617 mLegacyTypeTracker.remove(currentNetwork.networkInfo.getType(), 4618 currentNetwork); 4619 } 4620 mDefaultInetConditionPublished = newNetwork.validated ? 100 : 0; 4621 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 4622 } 4623 } 4624 } 4625 } 4626 // Linger any networks that are no longer needed. 4627 for (NetworkAgentInfo nai : affectedNetworks) { 4628 boolean teardown = !nai.isVPN(); 4629 for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { 4630 NetworkRequest nr = nai.networkRequests.valueAt(i); 4631 try { 4632 if (mNetworkRequests.get(nr).isRequest) { 4633 teardown = false; 4634 } 4635 } catch (Exception e) { 4636 loge("Request " + nr + " not found in mNetworkRequests."); 4637 loge(" it came from request list of " + nai.name()); 4638 } 4639 } 4640 if (teardown) { 4641 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 4642 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 4643 } else { 4644 // not going to linger, so kill the list of linger networks.. only 4645 // notify them of linger if it happens as the result of gaining another, 4646 // but if they transition and old network stays up, don't tell them of linger 4647 // or very delayed loss 4648 nai.networkLingered.clear(); 4649 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 4650 } 4651 } 4652 if (keep) { 4653 if (isNewDefault) { 4654 // Notify system services that this network is up. 4655 makeDefault(newNetwork); 4656 synchronized (ConnectivityService.this) { 4657 // have a new default network, release the transition wakelock in 4658 // a second if it's held. The second pause is to allow apps 4659 // to reconnect over the new network 4660 if (mNetTransitionWakeLock.isHeld()) { 4661 mHandler.sendMessageDelayed(mHandler.obtainMessage( 4662 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 4663 mNetTransitionWakeLockSerialNumber, 0), 4664 1000); 4665 } 4666 } 4667 } 4668 4669 // Notify battery stats service about this network, both the normal 4670 // interface and any stacked links. 4671 // TODO: Avoid redoing this; this must only be done once when a network comes online. 4672 try { 4673 final IBatteryStats bs = BatteryStatsService.getService(); 4674 final int type = newNetwork.networkInfo.getType(); 4675 4676 final String baseIface = newNetwork.linkProperties.getInterfaceName(); 4677 bs.noteNetworkInterfaceType(baseIface, type); 4678 for (LinkProperties stacked : newNetwork.linkProperties.getStackedLinks()) { 4679 final String stackedIface = stacked.getInterfaceName(); 4680 bs.noteNetworkInterfaceType(stackedIface, type); 4681 NetworkStatsFactory.noteStackedIface(stackedIface, baseIface); 4682 } 4683 } catch (RemoteException ignored) { 4684 } 4685 4686 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 4687 } else if (newNetwork.validated) { 4688 // Only tear down validated networks here. Leave unvalidated to either become 4689 // validated (and get evaluated against peers, one losing here) or 4690 // NetworkMonitor reports a bad network and we tear it down then. 4691 // TODO: Could teardown unvalidated networks when their NetworkCapabilities 4692 // satisfy no NetworkRequests. 4693 if (DBG && newNetwork.networkRequests.size() != 0) { 4694 loge("tearing down network with live requests:"); 4695 for (int i=0; i < newNetwork.networkRequests.size(); i++) { 4696 loge(" " + newNetwork.networkRequests.valueAt(i)); 4697 } 4698 } 4699 if (DBG) log("Validated network turns out to be unwanted. Tear it down."); 4700 newNetwork.asyncChannel.disconnect(); 4701 } 4702 } 4703 4704 // Attempt to rematch all Networks with NetworkRequests. This may result in Networks 4705 // being disconnected. 4706 // If only one Network's score or capabilities have been modified since the last time 4707 // this function was called, pass this Network in via the "changed" arugment, otherwise 4708 // pass null. 4709 // If only one Network has been changed but its NetworkCapabilities have not changed, 4710 // pass in the Network's score (from getCurrentScore()) prior to the change via 4711 // "oldScore", otherwise pass changed.getCurrentScore() or 0 if "changed" is null. 4712 private void rematchAllNetworksAndRequests(NetworkAgentInfo changed, int oldScore) { 4713 // TODO: This may get slow. The "changed" parameter is provided for future optimization 4714 // to avoid the slowness. It is not simply enough to process just "changed", for 4715 // example in the case where "changed"'s score decreases and another network should begin 4716 // satifying a NetworkRequest that "changed" currently satisfies. 4717 4718 // Optimization: Only reprocess "changed" if its score improved. This is safe because it 4719 // can only add more NetworkRequests satisfied by "changed", and this is exactly what 4720 // rematchNetworkAndRequests() handles. 4721 if (changed != null && oldScore < changed.getCurrentScore()) { 4722 rematchNetworkAndRequests(changed); 4723 } else { 4724 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 4725 rematchNetworkAndRequests(nai); 4726 } 4727 } 4728 } 4729 4730 private void updateInetCondition(NetworkAgentInfo nai, boolean valid) { 4731 // Don't bother updating until we've graduated to validated at least once. 4732 if (!nai.validated) return; 4733 // For now only update icons for default connection. 4734 // TODO: Update WiFi and cellular icons separately. b/17237507 4735 if (!isDefaultNetwork(nai)) return; 4736 4737 int newInetCondition = valid ? 100 : 0; 4738 // Don't repeat publish. 4739 if (newInetCondition == mDefaultInetConditionPublished) return; 4740 4741 mDefaultInetConditionPublished = newInetCondition; 4742 sendInetConditionBroadcast(nai.networkInfo); 4743 } 4744 4745 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 4746 NetworkInfo.State state = newInfo.getState(); 4747 NetworkInfo oldInfo = null; 4748 synchronized (networkAgent) { 4749 oldInfo = networkAgent.networkInfo; 4750 networkAgent.networkInfo = newInfo; 4751 } 4752 if (networkAgent.isVPN() && mLockdownTracker != null) { 4753 mLockdownTracker.onVpnStateChanged(newInfo); 4754 } 4755 4756 if (oldInfo != null && oldInfo.getState() == state) { 4757 if (VDBG) log("ignoring duplicate network state non-change"); 4758 return; 4759 } 4760 if (DBG) { 4761 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 4762 (oldInfo == null ? "null" : oldInfo.getState()) + 4763 " to " + state); 4764 } 4765 4766 if (state == NetworkInfo.State.CONNECTED && !networkAgent.created) { 4767 try { 4768 // This should never fail. Specifying an already in use NetID will cause failure. 4769 if (networkAgent.isVPN()) { 4770 mNetd.createVirtualNetwork(networkAgent.network.netId, 4771 !networkAgent.linkProperties.getDnsServers().isEmpty(), 4772 (networkAgent.networkMisc == null || 4773 !networkAgent.networkMisc.allowBypass)); 4774 } else { 4775 mNetd.createPhysicalNetwork(networkAgent.network.netId); 4776 } 4777 } catch (Exception e) { 4778 loge("Error creating network " + networkAgent.network.netId + ": " 4779 + e.getMessage()); 4780 return; 4781 } 4782 networkAgent.created = true; 4783 updateLinkProperties(networkAgent, null); 4784 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 4785 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 4786 if (networkAgent.isVPN()) { 4787 // Temporarily disable the default proxy (not global). 4788 synchronized (mProxyLock) { 4789 if (!mDefaultProxyDisabled) { 4790 mDefaultProxyDisabled = true; 4791 if (mGlobalProxy == null && mDefaultProxy != null) { 4792 sendProxyBroadcast(null); 4793 } 4794 } 4795 } 4796 // TODO: support proxy per network. 4797 } 4798 // Consider network even though it is not yet validated. 4799 // TODO: All the if-statement conditions can be removed now that validation only confers 4800 // a score increase. 4801 if (mNetworkForRequestId.get(mDefaultRequest.requestId) == null && 4802 networkAgent.isVPN() == false && 4803 mDefaultRequest.networkCapabilities.satisfiedByNetworkCapabilities( 4804 networkAgent.networkCapabilities)) { 4805 rematchNetworkAndRequests(networkAgent); 4806 } 4807 } else if (state == NetworkInfo.State.DISCONNECTED || 4808 state == NetworkInfo.State.SUSPENDED) { 4809 networkAgent.asyncChannel.disconnect(); 4810 if (networkAgent.isVPN()) { 4811 synchronized (mProxyLock) { 4812 if (mDefaultProxyDisabled) { 4813 mDefaultProxyDisabled = false; 4814 if (mGlobalProxy == null && mDefaultProxy != null) { 4815 sendProxyBroadcast(mDefaultProxy); 4816 } 4817 } 4818 } 4819 } 4820 } 4821 } 4822 4823 private void updateNetworkScore(NetworkAgentInfo nai, int score) { 4824 if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); 4825 if (score < 0) { 4826 loge("updateNetworkScore for " + nai.name() + " got a negative score (" + score + 4827 "). Bumping score to min of 0"); 4828 score = 0; 4829 } 4830 4831 final int oldScore = nai.getCurrentScore(); 4832 nai.setCurrentScore(score); 4833 4834 if (nai.created) rematchAllNetworksAndRequests(nai, oldScore); 4835 4836 for (int i = 0; i < nai.networkRequests.size(); i++) { 4837 NetworkRequest nr = nai.networkRequests.valueAt(i); 4838 // Don't send listening requests to factories. b/17393458 4839 if (mNetworkRequests.get(nr).isRequest == false) continue; 4840 sendUpdatedScoreToFactories(nr, score); 4841 } 4842 } 4843 4844 // notify only this one new request of the current state 4845 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 4846 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 4847 // TODO - read state from monitor to decide what to send. 4848// if (nai.networkMonitor.isLingering()) { 4849// notifyType = NetworkCallbacks.LOSING; 4850// } else if (nai.networkMonitor.isEvaluating()) { 4851// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 4852// } 4853 callCallbackForRequest(nri, nai, notifyType); 4854 } 4855 4856 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 4857 // The NetworkInfo we actually send out has no bearing on the real 4858 // state of affairs. For example, if the default connection is mobile, 4859 // and a request for HIPRI has just gone away, we need to pretend that 4860 // HIPRI has just disconnected. So we need to set the type to HIPRI and 4861 // the state to DISCONNECTED, even though the network is of type MOBILE 4862 // and is still connected. 4863 NetworkInfo info = new NetworkInfo(nai.networkInfo); 4864 info.setType(type); 4865 if (connected) { 4866 info.setDetailedState(DetailedState.CONNECTED, null, info.getExtraInfo()); 4867 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 4868 } else { 4869 info.setDetailedState(DetailedState.DISCONNECTED, null, info.getExtraInfo()); 4870 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 4871 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 4872 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 4873 if (info.isFailover()) { 4874 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 4875 nai.networkInfo.setFailover(false); 4876 } 4877 if (info.getReason() != null) { 4878 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 4879 } 4880 if (info.getExtraInfo() != null) { 4881 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 4882 } 4883 NetworkAgentInfo newDefaultAgent = null; 4884 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 4885 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 4886 if (newDefaultAgent != null) { 4887 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 4888 newDefaultAgent.networkInfo); 4889 } else { 4890 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 4891 } 4892 } 4893 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 4894 mDefaultInetConditionPublished); 4895 final Intent immediateIntent = new Intent(intent); 4896 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 4897 sendStickyBroadcast(immediateIntent); 4898 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 4899 if (newDefaultAgent != null) { 4900 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 4901 getConnectivityChangeDelay()); 4902 } 4903 } 4904 } 4905 4906 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 4907 if (DBG) log("notifyType " + notifyTypeToName(notifyType) + " for " + networkAgent.name()); 4908 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 4909 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 4910 NetworkRequestInfo nri = mNetworkRequests.get(nr); 4911 if (VDBG) log(" sending notification for " + nr); 4912 callCallbackForRequest(nri, networkAgent, notifyType); 4913 } 4914 } 4915 4916 private String notifyTypeToName(int notifyType) { 4917 switch (notifyType) { 4918 case ConnectivityManager.CALLBACK_PRECHECK: return "PRECHECK"; 4919 case ConnectivityManager.CALLBACK_AVAILABLE: return "AVAILABLE"; 4920 case ConnectivityManager.CALLBACK_LOSING: return "LOSING"; 4921 case ConnectivityManager.CALLBACK_LOST: return "LOST"; 4922 case ConnectivityManager.CALLBACK_UNAVAIL: return "UNAVAILABLE"; 4923 case ConnectivityManager.CALLBACK_CAP_CHANGED: return "CAP_CHANGED"; 4924 case ConnectivityManager.CALLBACK_IP_CHANGED: return "IP_CHANGED"; 4925 case ConnectivityManager.CALLBACK_RELEASED: return "RELEASED"; 4926 } 4927 return "UNKNOWN"; 4928 } 4929 4930 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 4931 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4932 if (nai != null) { 4933 synchronized (nai) { 4934 return new LinkProperties(nai.linkProperties); 4935 } 4936 } 4937 return new LinkProperties(); 4938 } 4939 4940 private NetworkInfo getNetworkInfoForType(int networkType) { 4941 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 4942 return null; 4943 4944 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4945 if (nai != null) { 4946 NetworkInfo result = new NetworkInfo(nai.networkInfo); 4947 result.setType(networkType); 4948 return result; 4949 } else { 4950 NetworkInfo result = new NetworkInfo( 4951 networkType, 0, ConnectivityManager.getNetworkTypeName(networkType), ""); 4952 result.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, null, null); 4953 return result; 4954 } 4955 } 4956 4957 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 4958 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4959 if (nai != null) { 4960 synchronized (nai) { 4961 return new NetworkCapabilities(nai.networkCapabilities); 4962 } 4963 } 4964 return new NetworkCapabilities(); 4965 } 4966 4967 @Override 4968 public boolean addVpnAddress(String address, int prefixLength) { 4969 throwIfLockdownEnabled(); 4970 int user = UserHandle.getUserId(Binder.getCallingUid()); 4971 synchronized (mVpns) { 4972 return mVpns.get(user).addAddress(address, prefixLength); 4973 } 4974 } 4975 4976 @Override 4977 public boolean removeVpnAddress(String address, int prefixLength) { 4978 throwIfLockdownEnabled(); 4979 int user = UserHandle.getUserId(Binder.getCallingUid()); 4980 synchronized (mVpns) { 4981 return mVpns.get(user).removeAddress(address, prefixLength); 4982 } 4983 } 4984} 4985