ConnectivityService.java revision edb47668f072ba82ca389a1b78b1a2024ac31663
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server; 18 19import static android.Manifest.permission.MANAGE_NETWORK_POLICY; 20import static android.Manifest.permission.RECEIVE_DATA_ACTIVITY_CHANGE; 21import static android.net.ConnectivityManager.CONNECTIVITY_ACTION; 22import static android.net.ConnectivityManager.CONNECTIVITY_ACTION_IMMEDIATE; 23import static android.net.ConnectivityManager.TYPE_BLUETOOTH; 24import static android.net.ConnectivityManager.TYPE_DUMMY; 25import static android.net.ConnectivityManager.TYPE_MOBILE; 26import static android.net.ConnectivityManager.TYPE_MOBILE_MMS; 27import static android.net.ConnectivityManager.TYPE_MOBILE_SUPL; 28import static android.net.ConnectivityManager.TYPE_MOBILE_DUN; 29import static android.net.ConnectivityManager.TYPE_MOBILE_FOTA; 30import static android.net.ConnectivityManager.TYPE_MOBILE_IMS; 31import static android.net.ConnectivityManager.TYPE_MOBILE_CBS; 32import static android.net.ConnectivityManager.TYPE_MOBILE_IA; 33import static android.net.ConnectivityManager.TYPE_MOBILE_HIPRI; 34import static android.net.ConnectivityManager.TYPE_NONE; 35import static android.net.ConnectivityManager.TYPE_WIFI; 36import static android.net.ConnectivityManager.TYPE_WIMAX; 37import static android.net.ConnectivityManager.TYPE_PROXY; 38import static android.net.ConnectivityManager.getNetworkTypeName; 39import static android.net.ConnectivityManager.isNetworkTypeValid; 40import static android.net.NetworkPolicyManager.RULE_ALLOW_ALL; 41import static android.net.NetworkPolicyManager.RULE_REJECT_METERED; 42 43import android.app.AlarmManager; 44import android.app.Notification; 45import android.app.NotificationManager; 46import android.app.PendingIntent; 47import android.content.ActivityNotFoundException; 48import android.content.BroadcastReceiver; 49import android.content.ContentResolver; 50import android.content.Context; 51import android.content.ContextWrapper; 52import android.content.Intent; 53import android.content.IntentFilter; 54import android.content.pm.PackageManager; 55import android.content.res.Configuration; 56import android.content.res.Resources; 57import android.database.ContentObserver; 58import android.net.ConnectivityManager; 59import android.net.IConnectivityManager; 60import android.net.INetworkManagementEventObserver; 61import android.net.INetworkPolicyListener; 62import android.net.INetworkPolicyManager; 63import android.net.INetworkStatsService; 64import android.net.LinkAddress; 65import android.net.LinkProperties; 66import android.net.LinkProperties.CompareResult; 67import android.net.LinkQualityInfo; 68import android.net.MobileDataStateTracker; 69import android.net.Network; 70import android.net.NetworkAgent; 71import android.net.NetworkCapabilities; 72import android.net.NetworkConfig; 73import android.net.NetworkInfo; 74import android.net.NetworkInfo.DetailedState; 75import android.net.NetworkFactory; 76import android.net.NetworkMisc; 77import android.net.NetworkQuotaInfo; 78import android.net.NetworkRequest; 79import android.net.NetworkState; 80import android.net.NetworkStateTracker; 81import android.net.NetworkUtils; 82import android.net.Proxy; 83import android.net.ProxyDataTracker; 84import android.net.ProxyInfo; 85import android.net.RouteInfo; 86import android.net.SamplingDataTracker; 87import android.net.UidRange; 88import android.net.Uri; 89import android.net.wimax.WimaxManagerConstants; 90import android.os.AsyncTask; 91import android.os.Binder; 92import android.os.Build; 93import android.os.FileUtils; 94import android.os.Handler; 95import android.os.HandlerThread; 96import android.os.IBinder; 97import android.os.INetworkManagementService; 98import android.os.Looper; 99import android.os.Message; 100import android.os.Messenger; 101import android.os.ParcelFileDescriptor; 102import android.os.PowerManager; 103import android.os.Process; 104import android.os.RemoteException; 105import android.os.ServiceManager; 106import android.os.SystemClock; 107import android.os.SystemProperties; 108import android.os.UserHandle; 109import android.os.UserManager; 110import android.provider.Settings; 111import android.security.Credentials; 112import android.security.KeyStore; 113import android.telephony.TelephonyManager; 114import android.text.TextUtils; 115import android.util.Slog; 116import android.util.SparseArray; 117import android.util.SparseIntArray; 118import android.util.Xml; 119 120import com.android.internal.R; 121import com.android.internal.annotations.GuardedBy; 122import com.android.internal.app.IBatteryStats; 123import com.android.internal.net.LegacyVpnInfo; 124import com.android.internal.net.NetworkStatsFactory; 125import com.android.internal.net.VpnConfig; 126import com.android.internal.net.VpnProfile; 127import com.android.internal.telephony.DctConstants; 128import com.android.internal.telephony.Phone; 129import com.android.internal.telephony.PhoneConstants; 130import com.android.internal.telephony.TelephonyIntents; 131import com.android.internal.util.AsyncChannel; 132import com.android.internal.util.IndentingPrintWriter; 133import com.android.internal.util.XmlUtils; 134import com.android.server.am.BatteryStatsService; 135import com.android.server.connectivity.DataConnectionStats; 136import com.android.server.connectivity.Nat464Xlat; 137import com.android.server.connectivity.NetworkAgentInfo; 138import com.android.server.connectivity.NetworkMonitor; 139import com.android.server.connectivity.PacManager; 140import com.android.server.connectivity.Tethering; 141import com.android.server.connectivity.Vpn; 142import com.android.server.net.BaseNetworkObserver; 143import com.android.server.net.LockdownVpnTracker; 144import com.google.android.collect.Lists; 145import com.google.android.collect.Sets; 146 147import dalvik.system.DexClassLoader; 148 149import org.xmlpull.v1.XmlPullParser; 150import org.xmlpull.v1.XmlPullParserException; 151 152import java.io.File; 153import java.io.FileDescriptor; 154import java.io.FileNotFoundException; 155import java.io.FileReader; 156import java.io.IOException; 157import java.io.PrintWriter; 158import java.lang.reflect.Constructor; 159import java.net.HttpURLConnection; 160import java.net.Inet4Address; 161import java.net.Inet6Address; 162import java.net.InetAddress; 163import java.net.URL; 164import java.net.UnknownHostException; 165import java.util.ArrayList; 166import java.util.Arrays; 167import java.util.Collection; 168import java.util.GregorianCalendar; 169import java.util.HashMap; 170import java.util.HashSet; 171import java.util.List; 172import java.util.Map; 173import java.util.Random; 174import java.util.concurrent.atomic.AtomicBoolean; 175import java.util.concurrent.atomic.AtomicInteger; 176 177import javax.net.ssl.HostnameVerifier; 178import javax.net.ssl.HttpsURLConnection; 179import javax.net.ssl.SSLSession; 180 181/** 182 * @hide 183 */ 184public class ConnectivityService extends IConnectivityManager.Stub { 185 private static final String TAG = "ConnectivityService"; 186 187 private static final boolean DBG = true; 188 private static final boolean VDBG = false; 189 190 // network sampling debugging 191 private static final boolean SAMPLE_DBG = false; 192 193 private static final boolean LOGD_RULES = false; 194 195 // TODO: create better separation between radio types and network types 196 197 // how long to wait before switching back to a radio's default network 198 private static final int RESTORE_DEFAULT_NETWORK_DELAY = 1 * 60 * 1000; 199 // system property that can override the above value 200 private static final String NETWORK_RESTORE_DELAY_PROP_NAME = 201 "android.telephony.apn-restore"; 202 203 // Default value if FAIL_FAST_TIME_MS is not set 204 private static final int DEFAULT_FAIL_FAST_TIME_MS = 1 * 60 * 1000; 205 // system property that can override DEFAULT_FAIL_FAST_TIME_MS 206 private static final String FAIL_FAST_TIME_MS = 207 "persist.radio.fail_fast_time_ms"; 208 209 private static final String ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED = 210 "android.net.ConnectivityService.action.PKT_CNT_SAMPLE_INTERVAL_ELAPSED"; 211 212 private static final int SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE = 0; 213 214 private PendingIntent mSampleIntervalElapsedIntent; 215 216 // Set network sampling interval at 12 minutes, this way, even if the timers get 217 // aggregated, it will fire at around 15 minutes, which should allow us to 218 // aggregate this timer with other timers (specially the socket keep alive timers) 219 private static final int DEFAULT_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 12 * 60); 220 221 // start network sampling a minute after booting ... 222 private static final int DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 60); 223 224 AlarmManager mAlarmManager; 225 226 private Tethering mTethering; 227 228 private KeyStore mKeyStore; 229 230 @GuardedBy("mVpns") 231 private final SparseArray<Vpn> mVpns = new SparseArray<Vpn>(); 232 233 private boolean mLockdownEnabled; 234 private LockdownVpnTracker mLockdownTracker; 235 236 private Nat464Xlat mClat; 237 238 /** Lock around {@link #mUidRules} and {@link #mMeteredIfaces}. */ 239 private Object mRulesLock = new Object(); 240 /** Currently active network rules by UID. */ 241 private SparseIntArray mUidRules = new SparseIntArray(); 242 /** Set of ifaces that are costly. */ 243 private HashSet<String> mMeteredIfaces = Sets.newHashSet(); 244 245 /** 246 * Sometimes we want to refer to the individual network state 247 * trackers separately, and sometimes we just want to treat them 248 * abstractly. 249 */ 250 private NetworkStateTracker mNetTrackers[]; 251 252 private Context mContext; 253 private int mNetworkPreference; 254 private int mActiveDefaultNetwork = TYPE_NONE; 255 // 0 is full bad, 100 is full good 256 private int mDefaultInetConditionPublished = 0; 257 258 private Object mDnsLock = new Object(); 259 private int mNumDnsEntries; 260 261 private boolean mTestMode; 262 private static ConnectivityService sServiceInstance; 263 264 private INetworkManagementService mNetd; 265 private INetworkPolicyManager mPolicyManager; 266 267 private String mCurrentTcpBufferSizes; 268 269 private static final int ENABLED = 1; 270 private static final int DISABLED = 0; 271 272 /** 273 * used internally to change our mobile data enabled flag 274 */ 275 private static final int EVENT_CHANGE_MOBILE_DATA_ENABLED = 2; 276 277 /** 278 * used internally to clear a wakelock when transitioning 279 * from one net to another. Clear happens when we get a new 280 * network - EVENT_EXPIRE_NET_TRANSITION_WAKELOCK happens 281 * after a timeout if no network is found (typically 1 min). 282 */ 283 private static final int EVENT_CLEAR_NET_TRANSITION_WAKELOCK = 8; 284 285 /** 286 * used internally to reload global proxy settings 287 */ 288 private static final int EVENT_APPLY_GLOBAL_HTTP_PROXY = 9; 289 290 /** 291 * used internally to set external dependency met/unmet 292 * arg1 = ENABLED (met) or DISABLED (unmet) 293 * arg2 = NetworkType 294 */ 295 private static final int EVENT_SET_DEPENDENCY_MET = 10; 296 297 /** 298 * used internally to send a sticky broadcast delayed. 299 */ 300 private static final int EVENT_SEND_STICKY_BROADCAST_INTENT = 11; 301 302 /** 303 * Used internally to 304 * {@link NetworkStateTracker#setPolicyDataEnable(boolean)}. 305 */ 306 private static final int EVENT_SET_POLICY_DATA_ENABLE = 12; 307 308 /** 309 * Used internally to disable fail fast of mobile data 310 */ 311 private static final int EVENT_ENABLE_FAIL_FAST_MOBILE_DATA = 14; 312 313 /** 314 * used internally to indicate that data sampling interval is up 315 */ 316 private static final int EVENT_SAMPLE_INTERVAL_ELAPSED = 15; 317 318 /** 319 * PAC manager has received new port. 320 */ 321 private static final int EVENT_PROXY_HAS_CHANGED = 16; 322 323 /** 324 * used internally when registering NetworkFactories 325 * obj = NetworkFactoryInfo 326 */ 327 private static final int EVENT_REGISTER_NETWORK_FACTORY = 17; 328 329 /** 330 * used internally when registering NetworkAgents 331 * obj = Messenger 332 */ 333 private static final int EVENT_REGISTER_NETWORK_AGENT = 18; 334 335 /** 336 * used to add a network request 337 * includes a NetworkRequestInfo 338 */ 339 private static final int EVENT_REGISTER_NETWORK_REQUEST = 19; 340 341 /** 342 * indicates a timeout period is over - check if we had a network yet or not 343 * and if not, call the timeout calback (but leave the request live until they 344 * cancel it. 345 * includes a NetworkRequestInfo 346 */ 347 private static final int EVENT_TIMEOUT_NETWORK_REQUEST = 20; 348 349 /** 350 * used to add a network listener - no request 351 * includes a NetworkRequestInfo 352 */ 353 private static final int EVENT_REGISTER_NETWORK_LISTENER = 21; 354 355 /** 356 * used to remove a network request, either a listener or a real request 357 * arg1 = UID of caller 358 * obj = NetworkRequest 359 */ 360 private static final int EVENT_RELEASE_NETWORK_REQUEST = 22; 361 362 /** 363 * used internally when registering NetworkFactories 364 * obj = Messenger 365 */ 366 private static final int EVENT_UNREGISTER_NETWORK_FACTORY = 23; 367 368 /** 369 * used internally to expire a wakelock when transitioning 370 * from one net to another. Expire happens when we fail to find 371 * a new network (typically after 1 minute) - 372 * EVENT_CLEAR_NET_TRANSITION_WAKELOCK happens if we had found 373 * a replacement network. 374 */ 375 private static final int EVENT_EXPIRE_NET_TRANSITION_WAKELOCK = 24; 376 377 /** 378 * Used internally to indicate the system is ready. 379 */ 380 private static final int EVENT_SYSTEM_READY = 25; 381 382 383 /** Handler used for internal events. */ 384 final private InternalHandler mHandler; 385 /** Handler used for incoming {@link NetworkStateTracker} events. */ 386 final private NetworkStateTrackerHandler mTrackerHandler; 387 388 private boolean mSystemReady; 389 private Intent mInitialBroadcast; 390 391 private PowerManager.WakeLock mNetTransitionWakeLock; 392 private String mNetTransitionWakeLockCausedBy = ""; 393 private int mNetTransitionWakeLockSerialNumber; 394 private int mNetTransitionWakeLockTimeout; 395 396 private InetAddress mDefaultDns; 397 398 // used in DBG mode to track inet condition reports 399 private static final int INET_CONDITION_LOG_MAX_SIZE = 15; 400 private ArrayList mInetLog; 401 402 // track the current default http proxy - tell the world if we get a new one (real change) 403 private ProxyInfo mDefaultProxy = null; 404 private Object mProxyLock = new Object(); 405 private boolean mDefaultProxyDisabled = false; 406 407 // track the global proxy. 408 private ProxyInfo mGlobalProxy = null; 409 410 private PacManager mPacManager = null; 411 412 private SettingsObserver mSettingsObserver; 413 414 private UserManager mUserManager; 415 416 NetworkConfig[] mNetConfigs; 417 int mNetworksDefined; 418 419 // the set of network types that can only be enabled by system/sig apps 420 List mProtectedNetworks; 421 422 private DataConnectionStats mDataConnectionStats; 423 424 private AtomicInteger mEnableFailFastMobileDataTag = new AtomicInteger(0); 425 426 TelephonyManager mTelephonyManager; 427 428 // sequence number for Networks; keep in sync with system/netd/NetworkController.cpp 429 private final static int MIN_NET_ID = 100; // some reserved marks 430 private final static int MAX_NET_ID = 65535; 431 private int mNextNetId = MIN_NET_ID; 432 433 // sequence number of NetworkRequests 434 private int mNextNetworkRequestId = 1; 435 436 /** 437 * Implements support for the legacy "one network per network type" model. 438 * 439 * We used to have a static array of NetworkStateTrackers, one for each 440 * network type, but that doesn't work any more now that we can have, 441 * for example, more that one wifi network. This class stores all the 442 * NetworkAgentInfo objects that support a given type, but the legacy 443 * API will only see the first one. 444 * 445 * It serves two main purposes: 446 * 447 * 1. Provide information about "the network for a given type" (since this 448 * API only supports one). 449 * 2. Send legacy connectivity change broadcasts. Broadcasts are sent if 450 * the first network for a given type changes, or if the default network 451 * changes. 452 */ 453 private class LegacyTypeTracker { 454 455 private static final boolean DBG = true; 456 private static final boolean VDBG = false; 457 private static final String TAG = "CSLegacyTypeTracker"; 458 459 /** 460 * Array of lists, one per legacy network type (e.g., TYPE_MOBILE_MMS). 461 * Each list holds references to all NetworkAgentInfos that are used to 462 * satisfy requests for that network type. 463 * 464 * This array is built out at startup such that an unsupported network 465 * doesn't get an ArrayList instance, making this a tristate: 466 * unsupported, supported but not active and active. 467 * 468 * The actual lists are populated when we scan the network types that 469 * are supported on this device. 470 */ 471 private ArrayList<NetworkAgentInfo> mTypeLists[]; 472 473 public LegacyTypeTracker() { 474 mTypeLists = (ArrayList<NetworkAgentInfo>[]) 475 new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE + 1]; 476 } 477 478 public void addSupportedType(int type) { 479 if (mTypeLists[type] != null) { 480 throw new IllegalStateException( 481 "legacy list for type " + type + "already initialized"); 482 } 483 mTypeLists[type] = new ArrayList<NetworkAgentInfo>(); 484 } 485 486 public boolean isTypeSupported(int type) { 487 return isNetworkTypeValid(type) && mTypeLists[type] != null; 488 } 489 490 public NetworkAgentInfo getNetworkForType(int type) { 491 if (isTypeSupported(type) && !mTypeLists[type].isEmpty()) { 492 return mTypeLists[type].get(0); 493 } else { 494 return null; 495 } 496 } 497 498 private void maybeLogBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 499 if (DBG) { 500 log("Sending " + (connected ? "connected" : "disconnected") + 501 " broadcast for type " + type + " " + nai.name() + 502 " isDefaultNetwork=" + isDefaultNetwork(nai)); 503 } 504 } 505 506 /** Adds the given network to the specified legacy type list. */ 507 public void add(int type, NetworkAgentInfo nai) { 508 if (!isTypeSupported(type)) { 509 return; // Invalid network type. 510 } 511 if (VDBG) log("Adding agent " + nai + " for legacy network type " + type); 512 513 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 514 if (list.contains(nai)) { 515 loge("Attempting to register duplicate agent for type " + type + ": " + nai); 516 return; 517 } 518 519 if (list.isEmpty() || isDefaultNetwork(nai)) { 520 maybeLogBroadcast(nai, true, type); 521 sendLegacyNetworkBroadcast(nai, true, type); 522 } 523 list.add(nai); 524 } 525 526 /** Removes the given network from the specified legacy type list. */ 527 public void remove(int type, NetworkAgentInfo nai) { 528 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 529 if (list == null || list.isEmpty()) { 530 return; 531 } 532 533 boolean wasFirstNetwork = list.get(0).equals(nai); 534 535 if (!list.remove(nai)) { 536 return; 537 } 538 539 if (wasFirstNetwork || isDefaultNetwork(nai)) { 540 maybeLogBroadcast(nai, false, type); 541 sendLegacyNetworkBroadcast(nai, false, type); 542 } 543 544 if (!list.isEmpty() && wasFirstNetwork) { 545 if (DBG) log("Other network available for type " + type + 546 ", sending connected broadcast"); 547 maybeLogBroadcast(list.get(0), false, type); 548 sendLegacyNetworkBroadcast(list.get(0), false, type); 549 } 550 } 551 552 /** Removes the given network from all legacy type lists. */ 553 public void remove(NetworkAgentInfo nai) { 554 if (VDBG) log("Removing agent " + nai); 555 for (int type = 0; type < mTypeLists.length; type++) { 556 remove(type, nai); 557 } 558 } 559 560 private String naiToString(NetworkAgentInfo nai) { 561 String name = (nai != null) ? nai.name() : "null"; 562 String state = (nai.networkInfo != null) ? 563 nai.networkInfo.getState() + "/" + nai.networkInfo.getDetailedState() : 564 "???/???"; 565 return name + " " + state; 566 } 567 568 public void dump(IndentingPrintWriter pw) { 569 for (int type = 0; type < mTypeLists.length; type++) { 570 if (mTypeLists[type] == null) continue; 571 pw.print(type + " "); 572 pw.increaseIndent(); 573 if (mTypeLists[type].size() == 0) pw.println("none"); 574 for (NetworkAgentInfo nai : mTypeLists[type]) { 575 pw.println(naiToString(nai)); 576 } 577 pw.decreaseIndent(); 578 } 579 } 580 581 // This class needs its own log method because it has a different TAG. 582 private void log(String s) { 583 Slog.d(TAG, s); 584 } 585 586 } 587 private LegacyTypeTracker mLegacyTypeTracker = new LegacyTypeTracker(); 588 589 public ConnectivityService(Context context, INetworkManagementService netManager, 590 INetworkStatsService statsService, INetworkPolicyManager policyManager) { 591 if (DBG) log("ConnectivityService starting up"); 592 593 NetworkCapabilities netCap = new NetworkCapabilities(); 594 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 595 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 596 mDefaultRequest = new NetworkRequest(netCap, TYPE_NONE, nextNetworkRequestId()); 597 NetworkRequestInfo nri = new NetworkRequestInfo(null, mDefaultRequest, new Binder(), 598 NetworkRequestInfo.REQUEST); 599 mNetworkRequests.put(mDefaultRequest, nri); 600 601 HandlerThread handlerThread = new HandlerThread("ConnectivityServiceThread"); 602 handlerThread.start(); 603 mHandler = new InternalHandler(handlerThread.getLooper()); 604 mTrackerHandler = new NetworkStateTrackerHandler(handlerThread.getLooper()); 605 606 // setup our unique device name 607 if (TextUtils.isEmpty(SystemProperties.get("net.hostname"))) { 608 String id = Settings.Secure.getString(context.getContentResolver(), 609 Settings.Secure.ANDROID_ID); 610 if (id != null && id.length() > 0) { 611 String name = new String("android-").concat(id); 612 SystemProperties.set("net.hostname", name); 613 } 614 } 615 616 // read our default dns server ip 617 String dns = Settings.Global.getString(context.getContentResolver(), 618 Settings.Global.DEFAULT_DNS_SERVER); 619 if (dns == null || dns.length() == 0) { 620 dns = context.getResources().getString( 621 com.android.internal.R.string.config_default_dns_server); 622 } 623 try { 624 mDefaultDns = NetworkUtils.numericToInetAddress(dns); 625 } catch (IllegalArgumentException e) { 626 loge("Error setting defaultDns using " + dns); 627 } 628 629 mContext = checkNotNull(context, "missing Context"); 630 mNetd = checkNotNull(netManager, "missing INetworkManagementService"); 631 mPolicyManager = checkNotNull(policyManager, "missing INetworkPolicyManager"); 632 mKeyStore = KeyStore.getInstance(); 633 mTelephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 634 635 try { 636 mPolicyManager.registerListener(mPolicyListener); 637 } catch (RemoteException e) { 638 // ouch, no rules updates means some processes may never get network 639 loge("unable to register INetworkPolicyListener" + e.toString()); 640 } 641 642 final PowerManager powerManager = (PowerManager) context.getSystemService( 643 Context.POWER_SERVICE); 644 mNetTransitionWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); 645 mNetTransitionWakeLockTimeout = mContext.getResources().getInteger( 646 com.android.internal.R.integer.config_networkTransitionTimeout); 647 648 mNetTrackers = new NetworkStateTracker[ 649 ConnectivityManager.MAX_NETWORK_TYPE+1]; 650 651 mNetConfigs = new NetworkConfig[ConnectivityManager.MAX_NETWORK_TYPE+1]; 652 653 // TODO: What is the "correct" way to do determine if this is a wifi only device? 654 boolean wifiOnly = SystemProperties.getBoolean("ro.radio.noril", false); 655 log("wifiOnly=" + wifiOnly); 656 String[] naStrings = context.getResources().getStringArray( 657 com.android.internal.R.array.networkAttributes); 658 for (String naString : naStrings) { 659 try { 660 NetworkConfig n = new NetworkConfig(naString); 661 if (VDBG) log("naString=" + naString + " config=" + n); 662 if (n.type > ConnectivityManager.MAX_NETWORK_TYPE) { 663 loge("Error in networkAttributes - ignoring attempt to define type " + 664 n.type); 665 continue; 666 } 667 if (wifiOnly && ConnectivityManager.isNetworkTypeMobile(n.type)) { 668 log("networkAttributes - ignoring mobile as this dev is wifiOnly " + 669 n.type); 670 continue; 671 } 672 if (mNetConfigs[n.type] != null) { 673 loge("Error in networkAttributes - ignoring attempt to redefine type " + 674 n.type); 675 continue; 676 } 677 mLegacyTypeTracker.addSupportedType(n.type); 678 679 mNetConfigs[n.type] = n; 680 mNetworksDefined++; 681 } catch(Exception e) { 682 // ignore it - leave the entry null 683 } 684 } 685 if (VDBG) log("mNetworksDefined=" + mNetworksDefined); 686 687 mProtectedNetworks = new ArrayList<Integer>(); 688 int[] protectedNetworks = context.getResources().getIntArray( 689 com.android.internal.R.array.config_protectedNetworks); 690 for (int p : protectedNetworks) { 691 if ((mNetConfigs[p] != null) && (mProtectedNetworks.contains(p) == false)) { 692 mProtectedNetworks.add(p); 693 } else { 694 if (DBG) loge("Ignoring protectedNetwork " + p); 695 } 696 } 697 698 mTestMode = SystemProperties.get("cm.test.mode").equals("true") 699 && SystemProperties.get("ro.build.type").equals("eng"); 700 701 mTethering = new Tethering(mContext, mNetd, statsService, mHandler.getLooper()); 702 703 //set up the listener for user state for creating user VPNs 704 IntentFilter intentFilter = new IntentFilter(); 705 intentFilter.addAction(Intent.ACTION_USER_STARTING); 706 intentFilter.addAction(Intent.ACTION_USER_STOPPING); 707 mContext.registerReceiverAsUser( 708 mUserIntentReceiver, UserHandle.ALL, intentFilter, null, null); 709 mClat = new Nat464Xlat(mContext, mNetd, this, mTrackerHandler); 710 711 try { 712 mNetd.registerObserver(mTethering); 713 mNetd.registerObserver(mDataActivityObserver); 714 mNetd.registerObserver(mClat); 715 } catch (RemoteException e) { 716 loge("Error registering observer :" + e); 717 } 718 719 if (DBG) { 720 mInetLog = new ArrayList(); 721 } 722 723 mSettingsObserver = new SettingsObserver(mHandler, EVENT_APPLY_GLOBAL_HTTP_PROXY); 724 mSettingsObserver.observe(mContext); 725 726 mDataConnectionStats = new DataConnectionStats(mContext); 727 mDataConnectionStats.startMonitoring(); 728 729 mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE); 730 731 IntentFilter filter = new IntentFilter(); 732 filter.addAction(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 733 mContext.registerReceiver( 734 new BroadcastReceiver() { 735 @Override 736 public void onReceive(Context context, Intent intent) { 737 String action = intent.getAction(); 738 if (action.equals(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED)) { 739 mHandler.sendMessage(mHandler.obtainMessage 740 (EVENT_SAMPLE_INTERVAL_ELAPSED)); 741 } 742 } 743 }, 744 new IntentFilter(filter)); 745 746 mPacManager = new PacManager(mContext, mHandler, EVENT_PROXY_HAS_CHANGED); 747 748 filter = new IntentFilter(); 749 filter.addAction(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 750 mContext.registerReceiver(mProvisioningReceiver, filter); 751 752 mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); 753 } 754 755 private synchronized int nextNetworkRequestId() { 756 return mNextNetworkRequestId++; 757 } 758 759 private void assignNextNetId(NetworkAgentInfo nai) { 760 synchronized (mNetworkForNetId) { 761 for (int i = MIN_NET_ID; i <= MAX_NET_ID; i++) { 762 int netId = mNextNetId; 763 if (++mNextNetId > MAX_NET_ID) mNextNetId = MIN_NET_ID; 764 // Make sure NetID unused. http://b/16815182 765 if (mNetworkForNetId.get(netId) == null) { 766 nai.network = new Network(netId); 767 mNetworkForNetId.put(netId, nai); 768 return; 769 } 770 } 771 } 772 throw new IllegalStateException("No free netIds"); 773 } 774 775 private int getConnectivityChangeDelay() { 776 final ContentResolver cr = mContext.getContentResolver(); 777 778 /** Check system properties for the default value then use secure settings value, if any. */ 779 int defaultDelay = SystemProperties.getInt( 780 "conn." + Settings.Global.CONNECTIVITY_CHANGE_DELAY, 781 ConnectivityManager.CONNECTIVITY_CHANGE_DELAY_DEFAULT); 782 return Settings.Global.getInt(cr, Settings.Global.CONNECTIVITY_CHANGE_DELAY, 783 defaultDelay); 784 } 785 786 private boolean teardown(NetworkStateTracker netTracker) { 787 if (netTracker.teardown()) { 788 netTracker.setTeardownRequested(true); 789 return true; 790 } else { 791 return false; 792 } 793 } 794 795 /** 796 * Check if UID should be blocked from using the network represented by the given networkType. 797 * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. 798 */ 799 private boolean isNetworkBlocked(int networkType, int uid) { 800 return isNetworkWithLinkPropertiesBlocked(getLinkPropertiesForType(networkType), uid); 801 } 802 803 /** 804 * Check if UID should be blocked from using the network represented by the given 805 * NetworkAgentInfo. 806 */ 807 private boolean isNetworkBlocked(NetworkAgentInfo nai, int uid) { 808 return isNetworkWithLinkPropertiesBlocked(nai.linkProperties, uid); 809 } 810 811 /** 812 * Check if UID should be blocked from using the network with the given LinkProperties. 813 */ 814 private boolean isNetworkWithLinkPropertiesBlocked(LinkProperties lp, int uid) { 815 final boolean networkCostly; 816 final int uidRules; 817 818 final String iface = (lp == null ? "" : lp.getInterfaceName()); 819 synchronized (mRulesLock) { 820 networkCostly = mMeteredIfaces.contains(iface); 821 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 822 } 823 824 if (networkCostly && (uidRules & RULE_REJECT_METERED) != 0) { 825 return true; 826 } 827 828 // no restrictive rules; network is visible 829 return false; 830 } 831 832 /** 833 * Return a filtered {@link NetworkInfo}, potentially marked 834 * {@link DetailedState#BLOCKED} based on 835 * {@link #isNetworkBlocked}. 836 * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. 837 */ 838 private NetworkInfo getFilteredNetworkInfo(int networkType, int uid) { 839 NetworkInfo info = getNetworkInfoForType(networkType); 840 return getFilteredNetworkInfo(info, networkType, uid); 841 } 842 843 /* 844 * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. 845 */ 846 private NetworkInfo getFilteredNetworkInfo(NetworkInfo info, int networkType, int uid) { 847 if (isNetworkBlocked(networkType, uid)) { 848 // network is blocked; clone and override state 849 info = new NetworkInfo(info); 850 info.setDetailedState(DetailedState.BLOCKED, null, null); 851 if (VDBG) log("returning Blocked NetworkInfo"); 852 } 853 if (mLockdownTracker != null) { 854 info = mLockdownTracker.augmentNetworkInfo(info); 855 if (VDBG) log("returning Locked NetworkInfo"); 856 } 857 return info; 858 } 859 860 private NetworkInfo getFilteredNetworkInfo(NetworkAgentInfo nai, int uid) { 861 NetworkInfo info = nai.networkInfo; 862 if (isNetworkBlocked(nai, uid)) { 863 // network is blocked; clone and override state 864 info = new NetworkInfo(info); 865 info.setDetailedState(DetailedState.BLOCKED, null, null); 866 if (DBG) log("returning Blocked NetworkInfo"); 867 } 868 if (mLockdownTracker != null) { 869 info = mLockdownTracker.augmentNetworkInfo(info); 870 if (DBG) log("returning Locked NetworkInfo"); 871 } 872 return info; 873 } 874 875 /** 876 * Return NetworkInfo for the active (i.e., connected) network interface. 877 * It is assumed that at most one network is active at a time. If more 878 * than one is active, it is indeterminate which will be returned. 879 * @return the info for the active network, or {@code null} if none is 880 * active 881 */ 882 @Override 883 public NetworkInfo getActiveNetworkInfo() { 884 enforceAccessPermission(); 885 final int uid = Binder.getCallingUid(); 886 return getNetworkInfo(mActiveDefaultNetwork, uid); 887 } 888 889 /** 890 * Find the first Provisioning network. 891 * 892 * @return NetworkInfo or null if none. 893 */ 894 private NetworkInfo getProvisioningNetworkInfo() { 895 enforceAccessPermission(); 896 897 // Find the first Provisioning Network 898 NetworkInfo provNi = null; 899 for (NetworkInfo ni : getAllNetworkInfo()) { 900 if (ni.isConnectedToProvisioningNetwork()) { 901 provNi = ni; 902 break; 903 } 904 } 905 if (DBG) log("getProvisioningNetworkInfo: X provNi=" + provNi); 906 return provNi; 907 } 908 909 /** 910 * Find the first Provisioning network or the ActiveDefaultNetwork 911 * if there is no Provisioning network 912 * 913 * @return NetworkInfo or null if none. 914 */ 915 @Override 916 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 917 enforceAccessPermission(); 918 919 NetworkInfo provNi = getProvisioningNetworkInfo(); 920 if (provNi == null) { 921 final int uid = Binder.getCallingUid(); 922 provNi = getNetworkInfo(mActiveDefaultNetwork, uid); 923 } 924 if (DBG) log("getProvisioningOrActiveNetworkInfo: X provNi=" + provNi); 925 return provNi; 926 } 927 928 public NetworkInfo getActiveNetworkInfoUnfiltered() { 929 enforceAccessPermission(); 930 if (isNetworkTypeValid(mActiveDefaultNetwork)) { 931 return getNetworkInfoForType(mActiveDefaultNetwork); 932 } 933 return null; 934 } 935 936 @Override 937 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 938 enforceConnectivityInternalPermission(); 939 return getNetworkInfo(mActiveDefaultNetwork, uid); 940 } 941 942 @Override 943 public NetworkInfo getNetworkInfo(int networkType) { 944 enforceAccessPermission(); 945 final int uid = Binder.getCallingUid(); 946 return getNetworkInfo(networkType, uid); 947 } 948 949 private NetworkInfo getNetworkInfo(int networkType, int uid) { 950 NetworkInfo info = null; 951 if (isNetworkTypeValid(networkType)) { 952 if (getNetworkInfoForType(networkType) != null) { 953 info = getFilteredNetworkInfo(networkType, uid); 954 } 955 } 956 return info; 957 } 958 959 @Override 960 public NetworkInfo getNetworkInfoForNetwork(Network network) { 961 enforceAccessPermission(); 962 if (network == null) return null; 963 964 final int uid = Binder.getCallingUid(); 965 NetworkAgentInfo nai = null; 966 synchronized (mNetworkForNetId) { 967 nai = mNetworkForNetId.get(network.netId); 968 } 969 if (nai == null) return null; 970 synchronized (nai) { 971 if (nai.networkInfo == null) return null; 972 973 return getFilteredNetworkInfo(nai, uid); 974 } 975 } 976 977 @Override 978 public NetworkInfo[] getAllNetworkInfo() { 979 enforceAccessPermission(); 980 final int uid = Binder.getCallingUid(); 981 final ArrayList<NetworkInfo> result = Lists.newArrayList(); 982 synchronized (mRulesLock) { 983 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 984 networkType++) { 985 if (getNetworkInfoForType(networkType) != null) { 986 result.add(getFilteredNetworkInfo(networkType, uid)); 987 } 988 } 989 } 990 return result.toArray(new NetworkInfo[result.size()]); 991 } 992 993 @Override 994 public Network getNetworkForType(int networkType) { 995 enforceAccessPermission(); 996 final int uid = Binder.getCallingUid(); 997 if (isNetworkBlocked(networkType, uid)) { 998 return null; 999 } 1000 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1001 return (nai == null) ? null : nai.network; 1002 } 1003 1004 @Override 1005 public Network[] getAllNetworks() { 1006 enforceAccessPermission(); 1007 final ArrayList<Network> result = new ArrayList(); 1008 synchronized (mNetworkForNetId) { 1009 for (int i = 0; i < mNetworkForNetId.size(); i++) { 1010 result.add(new Network(mNetworkForNetId.valueAt(i).network)); 1011 } 1012 } 1013 return result.toArray(new Network[result.size()]); 1014 } 1015 1016 @Override 1017 public boolean isNetworkSupported(int networkType) { 1018 enforceAccessPermission(); 1019 return (isNetworkTypeValid(networkType) && (getNetworkInfoForType(networkType) != null)); 1020 } 1021 1022 /** 1023 * Return LinkProperties for the active (i.e., connected) default 1024 * network interface. It is assumed that at most one default network 1025 * is active at a time. If more than one is active, it is indeterminate 1026 * which will be returned. 1027 * @return the ip properties for the active network, or {@code null} if 1028 * none is active 1029 */ 1030 @Override 1031 public LinkProperties getActiveLinkProperties() { 1032 return getLinkPropertiesForType(mActiveDefaultNetwork); 1033 } 1034 1035 @Override 1036 public LinkProperties getLinkPropertiesForType(int networkType) { 1037 enforceAccessPermission(); 1038 if (isNetworkTypeValid(networkType)) { 1039 return getLinkPropertiesForTypeInternal(networkType); 1040 } 1041 return null; 1042 } 1043 1044 // TODO - this should be ALL networks 1045 @Override 1046 public LinkProperties getLinkProperties(Network network) { 1047 enforceAccessPermission(); 1048 NetworkAgentInfo nai = null; 1049 synchronized (mNetworkForNetId) { 1050 nai = mNetworkForNetId.get(network.netId); 1051 } 1052 1053 if (nai != null) { 1054 synchronized (nai) { 1055 return new LinkProperties(nai.linkProperties); 1056 } 1057 } 1058 return null; 1059 } 1060 1061 @Override 1062 public NetworkCapabilities getNetworkCapabilities(Network network) { 1063 enforceAccessPermission(); 1064 NetworkAgentInfo nai = null; 1065 synchronized (mNetworkForNetId) { 1066 nai = mNetworkForNetId.get(network.netId); 1067 } 1068 if (nai != null) { 1069 synchronized (nai) { 1070 return new NetworkCapabilities(nai.networkCapabilities); 1071 } 1072 } 1073 return null; 1074 } 1075 1076 @Override 1077 public NetworkState[] getAllNetworkState() { 1078 enforceAccessPermission(); 1079 final int uid = Binder.getCallingUid(); 1080 final ArrayList<NetworkState> result = Lists.newArrayList(); 1081 synchronized (mRulesLock) { 1082 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1083 networkType++) { 1084 if (getNetworkInfoForType(networkType) != null) { 1085 final NetworkInfo info = getFilteredNetworkInfo(networkType, uid); 1086 final LinkProperties lp = getLinkPropertiesForTypeInternal(networkType); 1087 final NetworkCapabilities netcap = getNetworkCapabilitiesForType(networkType); 1088 result.add(new NetworkState(info, lp, netcap)); 1089 } 1090 } 1091 } 1092 return result.toArray(new NetworkState[result.size()]); 1093 } 1094 1095 private NetworkState getNetworkStateUnchecked(int networkType) { 1096 if (isNetworkTypeValid(networkType)) { 1097 NetworkInfo info = getNetworkInfoForType(networkType); 1098 if (info != null) { 1099 return new NetworkState(info, 1100 getLinkPropertiesForTypeInternal(networkType), 1101 getNetworkCapabilitiesForType(networkType)); 1102 } 1103 } 1104 return null; 1105 } 1106 1107 @Override 1108 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1109 enforceAccessPermission(); 1110 1111 final long token = Binder.clearCallingIdentity(); 1112 try { 1113 final NetworkState state = getNetworkStateUnchecked(mActiveDefaultNetwork); 1114 if (state != null) { 1115 try { 1116 return mPolicyManager.getNetworkQuotaInfo(state); 1117 } catch (RemoteException e) { 1118 } 1119 } 1120 return null; 1121 } finally { 1122 Binder.restoreCallingIdentity(token); 1123 } 1124 } 1125 1126 @Override 1127 public boolean isActiveNetworkMetered() { 1128 enforceAccessPermission(); 1129 final long token = Binder.clearCallingIdentity(); 1130 try { 1131 return isNetworkMeteredUnchecked(mActiveDefaultNetwork); 1132 } finally { 1133 Binder.restoreCallingIdentity(token); 1134 } 1135 } 1136 1137 private boolean isNetworkMeteredUnchecked(int networkType) { 1138 final NetworkState state = getNetworkStateUnchecked(networkType); 1139 if (state != null) { 1140 try { 1141 return mPolicyManager.isNetworkMetered(state); 1142 } catch (RemoteException e) { 1143 } 1144 } 1145 return false; 1146 } 1147 1148 private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { 1149 @Override 1150 public void interfaceClassDataActivityChanged(String label, boolean active, long tsNanos) { 1151 int deviceType = Integer.parseInt(label); 1152 sendDataActivityBroadcast(deviceType, active, tsNanos); 1153 } 1154 }; 1155 1156 /** 1157 * Ensure that a network route exists to deliver traffic to the specified 1158 * host via the specified network interface. 1159 * @param networkType the type of the network over which traffic to the 1160 * specified host is to be routed 1161 * @param hostAddress the IP address of the host to which the route is 1162 * desired 1163 * @return {@code true} on success, {@code false} on failure 1164 */ 1165 public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress) { 1166 enforceChangePermission(); 1167 if (mProtectedNetworks.contains(networkType)) { 1168 enforceConnectivityInternalPermission(); 1169 } 1170 1171 InetAddress addr; 1172 try { 1173 addr = InetAddress.getByAddress(hostAddress); 1174 } catch (UnknownHostException e) { 1175 if (DBG) log("requestRouteToHostAddress got " + e.toString()); 1176 return false; 1177 } 1178 1179 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1180 if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); 1181 return false; 1182 } 1183 1184 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1185 if (nai == null) { 1186 if (mLegacyTypeTracker.isTypeSupported(networkType) == false) { 1187 if (DBG) log("requestRouteToHostAddress on unsupported network: " + networkType); 1188 } else { 1189 if (DBG) log("requestRouteToHostAddress on down network: " + networkType); 1190 } 1191 return false; 1192 } 1193 1194 DetailedState netState; 1195 synchronized (nai) { 1196 netState = nai.networkInfo.getDetailedState(); 1197 } 1198 1199 if (netState != DetailedState.CONNECTED && netState != DetailedState.CAPTIVE_PORTAL_CHECK) { 1200 if (VDBG) { 1201 log("requestRouteToHostAddress on down network " 1202 + "(" + networkType + ") - dropped" 1203 + " netState=" + netState); 1204 } 1205 return false; 1206 } 1207 1208 final int uid = Binder.getCallingUid(); 1209 final long token = Binder.clearCallingIdentity(); 1210 try { 1211 LinkProperties lp; 1212 int netId; 1213 synchronized (nai) { 1214 lp = nai.linkProperties; 1215 netId = nai.network.netId; 1216 } 1217 boolean ok = addLegacyRouteToHost(lp, addr, netId, uid); 1218 if (DBG) log("requestRouteToHostAddress ok=" + ok); 1219 return ok; 1220 } finally { 1221 Binder.restoreCallingIdentity(token); 1222 } 1223 } 1224 1225 private boolean addLegacyRouteToHost(LinkProperties lp, InetAddress addr, int netId, int uid) { 1226 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), addr); 1227 if (bestRoute == null) { 1228 bestRoute = RouteInfo.makeHostRoute(addr, lp.getInterfaceName()); 1229 } else { 1230 String iface = bestRoute.getInterface(); 1231 if (bestRoute.getGateway().equals(addr)) { 1232 // if there is no better route, add the implied hostroute for our gateway 1233 bestRoute = RouteInfo.makeHostRoute(addr, iface); 1234 } else { 1235 // if we will connect to this through another route, add a direct route 1236 // to it's gateway 1237 bestRoute = RouteInfo.makeHostRoute(addr, bestRoute.getGateway(), iface); 1238 } 1239 } 1240 if (DBG) log("Adding " + bestRoute + " for interface " + bestRoute.getInterface()); 1241 try { 1242 mNetd.addLegacyRouteForNetId(netId, bestRoute, uid); 1243 } catch (Exception e) { 1244 // never crash - catch them all 1245 if (DBG) loge("Exception trying to add a route: " + e); 1246 return false; 1247 } 1248 return true; 1249 } 1250 1251 public void setDataDependency(int networkType, boolean met) { 1252 enforceConnectivityInternalPermission(); 1253 1254 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_DEPENDENCY_MET, 1255 (met ? ENABLED : DISABLED), networkType)); 1256 } 1257 1258 private void handleSetDependencyMet(int networkType, boolean met) { 1259 if (mNetTrackers[networkType] != null) { 1260 if (DBG) { 1261 log("handleSetDependencyMet(" + networkType + ", " + met + ")"); 1262 } 1263 mNetTrackers[networkType].setDependencyMet(met); 1264 } 1265 } 1266 1267 private INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() { 1268 @Override 1269 public void onUidRulesChanged(int uid, int uidRules) { 1270 // caller is NPMS, since we only register with them 1271 if (LOGD_RULES) { 1272 log("onUidRulesChanged(uid=" + uid + ", uidRules=" + uidRules + ")"); 1273 } 1274 1275 synchronized (mRulesLock) { 1276 // skip update when we've already applied rules 1277 final int oldRules = mUidRules.get(uid, RULE_ALLOW_ALL); 1278 if (oldRules == uidRules) return; 1279 1280 mUidRules.put(uid, uidRules); 1281 } 1282 1283 // TODO: notify UID when it has requested targeted updates 1284 } 1285 1286 @Override 1287 public void onMeteredIfacesChanged(String[] meteredIfaces) { 1288 // caller is NPMS, since we only register with them 1289 if (LOGD_RULES) { 1290 log("onMeteredIfacesChanged(ifaces=" + Arrays.toString(meteredIfaces) + ")"); 1291 } 1292 1293 synchronized (mRulesLock) { 1294 mMeteredIfaces.clear(); 1295 for (String iface : meteredIfaces) { 1296 mMeteredIfaces.add(iface); 1297 } 1298 } 1299 } 1300 1301 @Override 1302 public void onRestrictBackgroundChanged(boolean restrictBackground) { 1303 // caller is NPMS, since we only register with them 1304 if (LOGD_RULES) { 1305 log("onRestrictBackgroundChanged(restrictBackground=" + restrictBackground + ")"); 1306 } 1307 1308 // kick off connectivity change broadcast for active network, since 1309 // global background policy change is radical. 1310 final int networkType = mActiveDefaultNetwork; 1311 if (isNetworkTypeValid(networkType)) { 1312 final NetworkStateTracker tracker = mNetTrackers[networkType]; 1313 if (tracker != null) { 1314 final NetworkInfo info = tracker.getNetworkInfo(); 1315 if (info != null && info.isConnected()) { 1316 sendConnectedBroadcast(info); 1317 } 1318 } 1319 } 1320 } 1321 }; 1322 1323 @Override 1324 public void setPolicyDataEnable(int networkType, boolean enabled) { 1325 // only someone like NPMS should only be calling us 1326 mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); 1327 1328 mHandler.sendMessage(mHandler.obtainMessage( 1329 EVENT_SET_POLICY_DATA_ENABLE, networkType, (enabled ? ENABLED : DISABLED))); 1330 } 1331 1332 private void handleSetPolicyDataEnable(int networkType, boolean enabled) { 1333 // TODO - handle this passing to factories 1334// if (isNetworkTypeValid(networkType)) { 1335// final NetworkStateTracker tracker = mNetTrackers[networkType]; 1336// if (tracker != null) { 1337// tracker.setPolicyDataEnable(enabled); 1338// } 1339// } 1340 } 1341 1342 private void enforceInternetPermission() { 1343 mContext.enforceCallingOrSelfPermission( 1344 android.Manifest.permission.INTERNET, 1345 "ConnectivityService"); 1346 } 1347 1348 private void enforceAccessPermission() { 1349 mContext.enforceCallingOrSelfPermission( 1350 android.Manifest.permission.ACCESS_NETWORK_STATE, 1351 "ConnectivityService"); 1352 } 1353 1354 private void enforceChangePermission() { 1355 mContext.enforceCallingOrSelfPermission( 1356 android.Manifest.permission.CHANGE_NETWORK_STATE, 1357 "ConnectivityService"); 1358 } 1359 1360 private void enforceTetherAccessPermission() { 1361 mContext.enforceCallingOrSelfPermission( 1362 android.Manifest.permission.ACCESS_NETWORK_STATE, 1363 "ConnectivityService"); 1364 } 1365 1366 private void enforceConnectivityInternalPermission() { 1367 mContext.enforceCallingOrSelfPermission( 1368 android.Manifest.permission.CONNECTIVITY_INTERNAL, 1369 "ConnectivityService"); 1370 } 1371 1372 public void sendConnectedBroadcast(NetworkInfo info) { 1373 enforceConnectivityInternalPermission(); 1374 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1375 sendGeneralBroadcast(info, CONNECTIVITY_ACTION); 1376 } 1377 1378 private void sendConnectedBroadcastDelayed(NetworkInfo info, int delayMs) { 1379 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1380 sendGeneralBroadcastDelayed(info, CONNECTIVITY_ACTION, delayMs); 1381 } 1382 1383 private void sendInetConditionBroadcast(NetworkInfo info) { 1384 sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION); 1385 } 1386 1387 private Intent makeGeneralIntent(NetworkInfo info, String bcastType) { 1388 if (mLockdownTracker != null) { 1389 info = mLockdownTracker.augmentNetworkInfo(info); 1390 } 1391 1392 Intent intent = new Intent(bcastType); 1393 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 1394 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 1395 if (info.isFailover()) { 1396 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 1397 info.setFailover(false); 1398 } 1399 if (info.getReason() != null) { 1400 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 1401 } 1402 if (info.getExtraInfo() != null) { 1403 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 1404 info.getExtraInfo()); 1405 } 1406 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 1407 return intent; 1408 } 1409 1410 private void sendGeneralBroadcast(NetworkInfo info, String bcastType) { 1411 sendStickyBroadcast(makeGeneralIntent(info, bcastType)); 1412 } 1413 1414 private void sendGeneralBroadcastDelayed(NetworkInfo info, String bcastType, int delayMs) { 1415 sendStickyBroadcastDelayed(makeGeneralIntent(info, bcastType), delayMs); 1416 } 1417 1418 private void sendDataActivityBroadcast(int deviceType, boolean active, long tsNanos) { 1419 Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); 1420 intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); 1421 intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); 1422 intent.putExtra(ConnectivityManager.EXTRA_REALTIME_NS, tsNanos); 1423 final long ident = Binder.clearCallingIdentity(); 1424 try { 1425 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, 1426 RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); 1427 } finally { 1428 Binder.restoreCallingIdentity(ident); 1429 } 1430 } 1431 1432 private void sendStickyBroadcast(Intent intent) { 1433 synchronized(this) { 1434 if (!mSystemReady) { 1435 mInitialBroadcast = new Intent(intent); 1436 } 1437 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1438 if (DBG) { 1439 log("sendStickyBroadcast: action=" + intent.getAction()); 1440 } 1441 1442 final long ident = Binder.clearCallingIdentity(); 1443 try { 1444 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1445 } finally { 1446 Binder.restoreCallingIdentity(ident); 1447 } 1448 } 1449 } 1450 1451 private void sendStickyBroadcastDelayed(Intent intent, int delayMs) { 1452 if (delayMs <= 0) { 1453 sendStickyBroadcast(intent); 1454 } else { 1455 if (VDBG) { 1456 log("sendStickyBroadcastDelayed: delayMs=" + delayMs + ", action=" 1457 + intent.getAction()); 1458 } 1459 mHandler.sendMessageDelayed(mHandler.obtainMessage( 1460 EVENT_SEND_STICKY_BROADCAST_INTENT, intent), delayMs); 1461 } 1462 } 1463 1464 void systemReady() { 1465 // start network sampling .. 1466 Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 1467 intent.setPackage(mContext.getPackageName()); 1468 1469 mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, 1470 SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); 1471 setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); 1472 1473 loadGlobalProxy(); 1474 1475 synchronized(this) { 1476 mSystemReady = true; 1477 if (mInitialBroadcast != null) { 1478 mContext.sendStickyBroadcastAsUser(mInitialBroadcast, UserHandle.ALL); 1479 mInitialBroadcast = null; 1480 } 1481 } 1482 // load the global proxy at startup 1483 mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY)); 1484 1485 // Try bringing up tracker, but if KeyStore isn't ready yet, wait 1486 // for user to unlock device. 1487 if (!updateLockdownVpn()) { 1488 final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_PRESENT); 1489 mContext.registerReceiver(mUserPresentReceiver, filter); 1490 } 1491 1492 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SYSTEM_READY)); 1493 } 1494 1495 private BroadcastReceiver mUserPresentReceiver = new BroadcastReceiver() { 1496 @Override 1497 public void onReceive(Context context, Intent intent) { 1498 // Try creating lockdown tracker, since user present usually means 1499 // unlocked keystore. 1500 if (updateLockdownVpn()) { 1501 mContext.unregisterReceiver(this); 1502 } 1503 } 1504 }; 1505 1506 /** @hide */ 1507 @Override 1508 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 1509 enforceConnectivityInternalPermission(); 1510 if (DBG) log("captivePortalCheckCompleted: ni=" + info + " captive=" + isCaptivePortal); 1511// mNetTrackers[info.getType()].captivePortalCheckCompleted(isCaptivePortal); 1512 } 1513 1514 /** 1515 * Setup data activity tracking for the given network. 1516 * 1517 * Every {@code setupDataActivityTracking} should be paired with a 1518 * {@link #removeDataActivityTracking} for cleanup. 1519 */ 1520 private void setupDataActivityTracking(NetworkAgentInfo networkAgent) { 1521 final String iface = networkAgent.linkProperties.getInterfaceName(); 1522 1523 final int timeout; 1524 int type = ConnectivityManager.TYPE_NONE; 1525 1526 if (networkAgent.networkCapabilities.hasTransport( 1527 NetworkCapabilities.TRANSPORT_CELLULAR)) { 1528 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1529 Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, 1530 5); 1531 type = ConnectivityManager.TYPE_MOBILE; 1532 } else if (networkAgent.networkCapabilities.hasTransport( 1533 NetworkCapabilities.TRANSPORT_WIFI)) { 1534 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1535 Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, 1536 0); 1537 type = ConnectivityManager.TYPE_WIFI; 1538 } else { 1539 // do not track any other networks 1540 timeout = 0; 1541 } 1542 1543 if (timeout > 0 && iface != null && type != ConnectivityManager.TYPE_NONE) { 1544 try { 1545 mNetd.addIdleTimer(iface, timeout, type); 1546 } catch (Exception e) { 1547 // You shall not crash! 1548 loge("Exception in setupDataActivityTracking " + e); 1549 } 1550 } 1551 } 1552 1553 /** 1554 * Remove data activity tracking when network disconnects. 1555 */ 1556 private void removeDataActivityTracking(NetworkAgentInfo networkAgent) { 1557 final String iface = networkAgent.linkProperties.getInterfaceName(); 1558 final NetworkCapabilities caps = networkAgent.networkCapabilities; 1559 1560 if (iface != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) || 1561 caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))) { 1562 try { 1563 // the call fails silently if no idletimer setup for this interface 1564 mNetd.removeIdleTimer(iface); 1565 } catch (Exception e) { 1566 loge("Exception in removeDataActivityTracking " + e); 1567 } 1568 } 1569 } 1570 1571 /** 1572 * Reads the network specific MTU size from reources. 1573 * and set it on it's iface. 1574 */ 1575 private void updateMtu(LinkProperties newLp, LinkProperties oldLp) { 1576 final String iface = newLp.getInterfaceName(); 1577 final int mtu = newLp.getMtu(); 1578 if (oldLp != null && newLp.isIdenticalMtu(oldLp)) { 1579 if (VDBG) log("identical MTU - not setting"); 1580 return; 1581 } 1582 1583 if (LinkProperties.isValidMtu(mtu, newLp.hasGlobalIPv6Address()) == false) { 1584 loge("Unexpected mtu value: " + mtu + ", " + iface); 1585 return; 1586 } 1587 1588 // Cannot set MTU without interface name 1589 if (TextUtils.isEmpty(iface)) { 1590 loge("Setting MTU size with null iface."); 1591 return; 1592 } 1593 1594 try { 1595 if (DBG) log("Setting MTU size: " + iface + ", " + mtu); 1596 mNetd.setMtu(iface, mtu); 1597 } catch (Exception e) { 1598 Slog.e(TAG, "exception in setMtu()" + e); 1599 } 1600 } 1601 1602 private static final String DEFAULT_TCP_BUFFER_SIZES = "4096,87380,110208,4096,16384,110208"; 1603 1604 private void updateTcpBufferSizes(NetworkAgentInfo nai) { 1605 if (isDefaultNetwork(nai) == false) { 1606 return; 1607 } 1608 1609 String tcpBufferSizes = nai.linkProperties.getTcpBufferSizes(); 1610 String[] values = null; 1611 if (tcpBufferSizes != null) { 1612 values = tcpBufferSizes.split(","); 1613 } 1614 1615 if (values == null || values.length != 6) { 1616 if (DBG) log("Invalid tcpBufferSizes string: " + tcpBufferSizes +", using defaults"); 1617 tcpBufferSizes = DEFAULT_TCP_BUFFER_SIZES; 1618 values = tcpBufferSizes.split(","); 1619 } 1620 1621 if (tcpBufferSizes.equals(mCurrentTcpBufferSizes)) return; 1622 1623 try { 1624 if (DBG) Slog.d(TAG, "Setting tx/rx TCP buffers to " + tcpBufferSizes); 1625 1626 final String prefix = "/sys/kernel/ipv4/tcp_"; 1627 FileUtils.stringToFile(prefix + "rmem_min", values[0]); 1628 FileUtils.stringToFile(prefix + "rmem_def", values[1]); 1629 FileUtils.stringToFile(prefix + "rmem_max", values[2]); 1630 FileUtils.stringToFile(prefix + "wmem_min", values[3]); 1631 FileUtils.stringToFile(prefix + "wmem_def", values[4]); 1632 FileUtils.stringToFile(prefix + "wmem_max", values[5]); 1633 mCurrentTcpBufferSizes = tcpBufferSizes; 1634 } catch (IOException e) { 1635 loge("Can't set TCP buffer sizes:" + e); 1636 } 1637 1638 final String defaultRwndKey = "net.tcp.default_init_rwnd"; 1639 int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0); 1640 Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(), 1641 Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue); 1642 final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd"; 1643 if (rwndValue != 0) { 1644 SystemProperties.set(sysctlKey, rwndValue.toString()); 1645 } 1646 } 1647 1648 private void flushVmDnsCache() { 1649 /* 1650 * Tell the VMs to toss their DNS caches 1651 */ 1652 Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE); 1653 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); 1654 /* 1655 * Connectivity events can happen before boot has completed ... 1656 */ 1657 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1658 final long ident = Binder.clearCallingIdentity(); 1659 try { 1660 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 1661 } finally { 1662 Binder.restoreCallingIdentity(ident); 1663 } 1664 } 1665 1666 @Override 1667 public int getRestoreDefaultNetworkDelay(int networkType) { 1668 String restoreDefaultNetworkDelayStr = SystemProperties.get( 1669 NETWORK_RESTORE_DELAY_PROP_NAME); 1670 if(restoreDefaultNetworkDelayStr != null && 1671 restoreDefaultNetworkDelayStr.length() != 0) { 1672 try { 1673 return Integer.valueOf(restoreDefaultNetworkDelayStr); 1674 } catch (NumberFormatException e) { 1675 } 1676 } 1677 // if the system property isn't set, use the value for the apn type 1678 int ret = RESTORE_DEFAULT_NETWORK_DELAY; 1679 1680 if ((networkType <= ConnectivityManager.MAX_NETWORK_TYPE) && 1681 (mNetConfigs[networkType] != null)) { 1682 ret = mNetConfigs[networkType].restoreTime; 1683 } 1684 return ret; 1685 } 1686 1687 @Override 1688 protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { 1689 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1690 if (mContext.checkCallingOrSelfPermission( 1691 android.Manifest.permission.DUMP) 1692 != PackageManager.PERMISSION_GRANTED) { 1693 pw.println("Permission Denial: can't dump ConnectivityService " + 1694 "from from pid=" + Binder.getCallingPid() + ", uid=" + 1695 Binder.getCallingUid()); 1696 return; 1697 } 1698 1699 pw.println("NetworkFactories for:"); 1700 pw.increaseIndent(); 1701 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 1702 pw.println(nfi.name); 1703 } 1704 pw.decreaseIndent(); 1705 pw.println(); 1706 1707 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 1708 pw.print("Active default network: "); 1709 if (defaultNai == null) { 1710 pw.println("none"); 1711 } else { 1712 pw.println(defaultNai.network.netId); 1713 } 1714 pw.println(); 1715 1716 pw.println("Current Networks:"); 1717 pw.increaseIndent(); 1718 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 1719 pw.println(nai.toString()); 1720 pw.increaseIndent(); 1721 pw.println("Requests:"); 1722 pw.increaseIndent(); 1723 for (int i = 0; i < nai.networkRequests.size(); i++) { 1724 pw.println(nai.networkRequests.valueAt(i).toString()); 1725 } 1726 pw.decreaseIndent(); 1727 pw.println("Lingered:"); 1728 pw.increaseIndent(); 1729 for (NetworkRequest nr : nai.networkLingered) pw.println(nr.toString()); 1730 pw.decreaseIndent(); 1731 pw.decreaseIndent(); 1732 } 1733 pw.decreaseIndent(); 1734 pw.println(); 1735 1736 pw.println("Network Requests:"); 1737 pw.increaseIndent(); 1738 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 1739 pw.println(nri.toString()); 1740 } 1741 pw.println(); 1742 pw.decreaseIndent(); 1743 1744 pw.print("mActiveDefaultNetwork: " + mActiveDefaultNetwork); 1745 if (mActiveDefaultNetwork != TYPE_NONE) { 1746 NetworkInfo activeNetworkInfo = getActiveNetworkInfo(); 1747 if (activeNetworkInfo != null) { 1748 pw.print(" " + activeNetworkInfo.getState() + 1749 "/" + activeNetworkInfo.getDetailedState()); 1750 } 1751 } 1752 pw.println(); 1753 1754 pw.println("mLegacyTypeTracker:"); 1755 pw.increaseIndent(); 1756 mLegacyTypeTracker.dump(pw); 1757 pw.decreaseIndent(); 1758 pw.println(); 1759 1760 synchronized (this) { 1761 pw.println("NetworkTransitionWakeLock is currently " + 1762 (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held."); 1763 pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy); 1764 } 1765 pw.println(); 1766 1767 mTethering.dump(fd, pw, args); 1768 1769 if (mInetLog != null) { 1770 pw.println(); 1771 pw.println("Inet condition reports:"); 1772 pw.increaseIndent(); 1773 for(int i = 0; i < mInetLog.size(); i++) { 1774 pw.println(mInetLog.get(i)); 1775 } 1776 pw.decreaseIndent(); 1777 } 1778 } 1779 1780 private boolean isLiveNetworkAgent(NetworkAgentInfo nai, String msg) { 1781 if (nai.network == null) return false; 1782 final NetworkAgentInfo officialNai; 1783 synchronized (mNetworkForNetId) { 1784 officialNai = mNetworkForNetId.get(nai.network.netId); 1785 } 1786 if (officialNai != null && officialNai.equals(nai)) return true; 1787 if (officialNai != null || VDBG) { 1788 loge(msg + " - isLiveNetworkAgent found mismatched netId: " + officialNai + 1789 " - " + nai); 1790 } 1791 return false; 1792 } 1793 1794 // must be stateless - things change under us. 1795 private class NetworkStateTrackerHandler extends Handler { 1796 public NetworkStateTrackerHandler(Looper looper) { 1797 super(looper); 1798 } 1799 1800 @Override 1801 public void handleMessage(Message msg) { 1802 NetworkInfo info; 1803 switch (msg.what) { 1804 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 1805 handleAsyncChannelHalfConnect(msg); 1806 break; 1807 } 1808 case AsyncChannel.CMD_CHANNEL_DISCONNECT: { 1809 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1810 if (nai != null) nai.asyncChannel.disconnect(); 1811 break; 1812 } 1813 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 1814 handleAsyncChannelDisconnected(msg); 1815 break; 1816 } 1817 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { 1818 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1819 if (nai == null) { 1820 loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); 1821 } else { 1822 updateCapabilities(nai, (NetworkCapabilities)msg.obj); 1823 } 1824 break; 1825 } 1826 case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { 1827 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1828 if (nai == null) { 1829 loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); 1830 } else { 1831 if (VDBG) { 1832 log("Update of LinkProperties for " + nai.name() + 1833 "; created=" + nai.created); 1834 } 1835 LinkProperties oldLp = nai.linkProperties; 1836 synchronized (nai) { 1837 nai.linkProperties = (LinkProperties)msg.obj; 1838 } 1839 if (nai.created) updateLinkProperties(nai, oldLp); 1840 } 1841 break; 1842 } 1843 case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { 1844 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1845 if (nai == null) { 1846 loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); 1847 break; 1848 } 1849 info = (NetworkInfo) msg.obj; 1850 updateNetworkInfo(nai, info); 1851 break; 1852 } 1853 case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { 1854 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1855 if (nai == null) { 1856 loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); 1857 break; 1858 } 1859 Integer score = (Integer) msg.obj; 1860 if (score != null) updateNetworkScore(nai, score.intValue()); 1861 break; 1862 } 1863 case NetworkAgent.EVENT_UID_RANGES_ADDED: { 1864 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1865 if (nai == null) { 1866 loge("EVENT_UID_RANGES_ADDED from unknown NetworkAgent"); 1867 break; 1868 } 1869 try { 1870 mNetd.addVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1871 } catch (Exception e) { 1872 // Never crash! 1873 loge("Exception in addVpnUidRanges: " + e); 1874 } 1875 break; 1876 } 1877 case NetworkAgent.EVENT_UID_RANGES_REMOVED: { 1878 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1879 if (nai == null) { 1880 loge("EVENT_UID_RANGES_REMOVED from unknown NetworkAgent"); 1881 break; 1882 } 1883 try { 1884 mNetd.removeVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1885 } catch (Exception e) { 1886 // Never crash! 1887 loge("Exception in removeVpnUidRanges: " + e); 1888 } 1889 break; 1890 } 1891 case NetworkAgent.EVENT_BLOCK_ADDRESS_FAMILY: { 1892 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1893 if (nai == null) { 1894 loge("EVENT_BLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1895 break; 1896 } 1897 try { 1898 mNetd.blockAddressFamily((Integer) msg.obj, nai.network.netId, 1899 nai.linkProperties.getInterfaceName()); 1900 } catch (Exception e) { 1901 // Never crash! 1902 loge("Exception in blockAddressFamily: " + e); 1903 } 1904 break; 1905 } 1906 case NetworkAgent.EVENT_UNBLOCK_ADDRESS_FAMILY: { 1907 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1908 if (nai == null) { 1909 loge("EVENT_UNBLOCK_ADDRESS_FAMILY from unknown NetworkAgent"); 1910 break; 1911 } 1912 try { 1913 mNetd.unblockAddressFamily((Integer) msg.obj, nai.network.netId, 1914 nai.linkProperties.getInterfaceName()); 1915 } catch (Exception e) { 1916 // Never crash! 1917 loge("Exception in blockAddressFamily: " + e); 1918 } 1919 break; 1920 } 1921 case NetworkMonitor.EVENT_NETWORK_TESTED: { 1922 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1923 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_VALIDATED")) { 1924 boolean valid = (msg.arg1 == NetworkMonitor.NETWORK_TEST_RESULT_VALID); 1925 if (valid) { 1926 if (DBG) log("Validated " + nai.name()); 1927 nai.validated = true; 1928 rematchNetworkAndRequests(nai); 1929 } 1930 updateInetCondition(nai, valid); 1931 } 1932 break; 1933 } 1934 case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { 1935 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1936 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_LINGER_COMPLETE")) { 1937 handleLingerComplete(nai); 1938 } 1939 break; 1940 } 1941 case NetworkMonitor.EVENT_PROVISIONING_NOTIFICATION: { 1942 if (msg.arg1 == 0) { 1943 setProvNotificationVisibleIntent(false, msg.arg2, 0, null, null); 1944 } else { 1945 NetworkAgentInfo nai = null; 1946 synchronized (mNetworkForNetId) { 1947 nai = mNetworkForNetId.get(msg.arg2); 1948 } 1949 if (nai == null) { 1950 loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); 1951 break; 1952 } 1953 setProvNotificationVisibleIntent(true, msg.arg2, nai.networkInfo.getType(), 1954 nai.networkInfo.getExtraInfo(), (PendingIntent)msg.obj); 1955 } 1956 break; 1957 } 1958 case NetworkStateTracker.EVENT_STATE_CHANGED: { 1959 info = (NetworkInfo) msg.obj; 1960 NetworkInfo.State state = info.getState(); 1961 1962 if (VDBG || (state == NetworkInfo.State.CONNECTED) || 1963 (state == NetworkInfo.State.DISCONNECTED) || 1964 (state == NetworkInfo.State.SUSPENDED)) { 1965 log("ConnectivityChange for " + 1966 info.getTypeName() + ": " + 1967 state + "/" + info.getDetailedState()); 1968 } 1969 1970 // Since mobile has the notion of a network/apn that can be used for 1971 // provisioning we need to check every time we're connected as 1972 // CaptiveProtalTracker won't detected it because DCT doesn't report it 1973 // as connected as ACTION_ANY_DATA_CONNECTION_STATE_CHANGED instead its 1974 // reported as ACTION_DATA_CONNECTION_CONNECTED_TO_PROVISIONING_APN. Which 1975 // is received by MDST and sent here as EVENT_STATE_CHANGED. 1976 if (ConnectivityManager.isNetworkTypeMobile(info.getType()) 1977 && (0 != Settings.Global.getInt(mContext.getContentResolver(), 1978 Settings.Global.DEVICE_PROVISIONED, 0)) 1979 && (((state == NetworkInfo.State.CONNECTED) 1980 && (info.getType() == ConnectivityManager.TYPE_MOBILE)) 1981 || info.isConnectedToProvisioningNetwork())) { 1982 log("ConnectivityChange checkMobileProvisioning for" 1983 + " TYPE_MOBILE or ProvisioningNetwork"); 1984 checkMobileProvisioning(CheckMp.MAX_TIMEOUT_MS); 1985 } 1986 1987 EventLogTags.writeConnectivityStateChanged( 1988 info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); 1989 1990 if (info.isConnectedToProvisioningNetwork()) { 1991 /** 1992 * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING 1993 * for now its an in between network, its a network that 1994 * is actually a default network but we don't want it to be 1995 * announced as such to keep background applications from 1996 * trying to use it. It turns out that some still try so we 1997 * take the additional step of clearing any default routes 1998 * to the link that may have incorrectly setup by the lower 1999 * levels. 2000 */ 2001 LinkProperties lp = getLinkPropertiesForTypeInternal(info.getType()); 2002 if (DBG) { 2003 log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); 2004 } 2005 2006 // Clear any default routes setup by the radio so 2007 // any activity by applications trying to use this 2008 // connection will fail until the provisioning network 2009 // is enabled. 2010 /* 2011 for (RouteInfo r : lp.getRoutes()) { 2012 removeRoute(lp, r, TO_DEFAULT_TABLE, 2013 mNetTrackers[info.getType()].getNetwork().netId); 2014 } 2015 */ 2016 } else if (state == NetworkInfo.State.DISCONNECTED) { 2017 } else if (state == NetworkInfo.State.SUSPENDED) { 2018 } else if (state == NetworkInfo.State.CONNECTED) { 2019 // handleConnect(info); 2020 } 2021 if (mLockdownTracker != null) { 2022 mLockdownTracker.onNetworkInfoChanged(info); 2023 } 2024 break; 2025 } 2026 case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { 2027 info = (NetworkInfo) msg.obj; 2028 // TODO: Temporary allowing network configuration 2029 // change not resetting sockets. 2030 // @see bug/4455071 2031 /* 2032 handleConnectivityChange(info.getType(), mCurrentLinkProperties[info.getType()], 2033 false); 2034 */ 2035 break; 2036 } 2037 } 2038 } 2039 } 2040 2041 private void handleAsyncChannelHalfConnect(Message msg) { 2042 AsyncChannel ac = (AsyncChannel) msg.obj; 2043 if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { 2044 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2045 if (VDBG) log("NetworkFactory connected"); 2046 // A network factory has connected. Send it all current NetworkRequests. 2047 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 2048 if (nri.isRequest == false) continue; 2049 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2050 ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, 2051 (nai != null ? nai.getCurrentScore() : 0), 0, nri.request); 2052 } 2053 } else { 2054 loge("Error connecting NetworkFactory"); 2055 mNetworkFactoryInfos.remove(msg.obj); 2056 } 2057 } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { 2058 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2059 if (VDBG) log("NetworkAgent connected"); 2060 // A network agent has requested a connection. Establish the connection. 2061 mNetworkAgentInfos.get(msg.replyTo).asyncChannel. 2062 sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 2063 } else { 2064 loge("Error connecting NetworkAgent"); 2065 NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); 2066 if (nai != null) { 2067 synchronized (mNetworkForNetId) { 2068 mNetworkForNetId.remove(nai.network.netId); 2069 } 2070 // Just in case. 2071 mLegacyTypeTracker.remove(nai); 2072 } 2073 } 2074 } 2075 } 2076 private void handleAsyncChannelDisconnected(Message msg) { 2077 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 2078 if (nai != null) { 2079 if (DBG) { 2080 log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); 2081 } 2082 // A network agent has disconnected. 2083 if (nai.created) { 2084 // Tell netd to clean up the configuration for this network 2085 // (routing rules, DNS, etc). 2086 try { 2087 mNetd.removeNetwork(nai.network.netId); 2088 } catch (Exception e) { 2089 loge("Exception removing network: " + e); 2090 } 2091 } 2092 // TODO - if we move the logic to the network agent (have them disconnect 2093 // because they lost all their requests or because their score isn't good) 2094 // then they would disconnect organically, report their new state and then 2095 // disconnect the channel. 2096 if (nai.networkInfo.isConnected()) { 2097 nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, 2098 null, null); 2099 } 2100 if (isDefaultNetwork(nai)) { 2101 mDefaultInetConditionPublished = 0; 2102 } 2103 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); 2104 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); 2105 mNetworkAgentInfos.remove(msg.replyTo); 2106 updateClat(null, nai.linkProperties, nai); 2107 mLegacyTypeTracker.remove(nai); 2108 synchronized (mNetworkForNetId) { 2109 mNetworkForNetId.remove(nai.network.netId); 2110 } 2111 // Since we've lost the network, go through all the requests that 2112 // it was satisfying and see if any other factory can satisfy them. 2113 final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); 2114 for (int i = 0; i < nai.networkRequests.size(); i++) { 2115 NetworkRequest request = nai.networkRequests.valueAt(i); 2116 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); 2117 if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { 2118 if (DBG) { 2119 log("Checking for replacement network to handle request " + request ); 2120 } 2121 mNetworkForRequestId.remove(request.requestId); 2122 sendUpdatedScoreToFactories(request, 0); 2123 NetworkAgentInfo alternative = null; 2124 for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { 2125 NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); 2126 if (existing.networkInfo.isConnected() && 2127 request.networkCapabilities.satisfiedByNetworkCapabilities( 2128 existing.networkCapabilities) && 2129 (alternative == null || 2130 alternative.getCurrentScore() < existing.getCurrentScore())) { 2131 alternative = existing; 2132 } 2133 } 2134 if (alternative != null) { 2135 if (DBG) log(" found replacement in " + alternative.name()); 2136 if (!toActivate.contains(alternative)) { 2137 toActivate.add(alternative); 2138 } 2139 } 2140 } 2141 } 2142 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 2143 removeDataActivityTracking(nai); 2144 mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; 2145 requestNetworkTransitionWakelock(nai.name()); 2146 } 2147 for (NetworkAgentInfo networkToActivate : toActivate) { 2148 networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2149 } 2150 } 2151 } 2152 2153 private void handleRegisterNetworkRequest(Message msg) { 2154 final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); 2155 final NetworkCapabilities newCap = nri.request.networkCapabilities; 2156 int score = 0; 2157 2158 // Check for the best currently alive network that satisfies this request 2159 NetworkAgentInfo bestNetwork = null; 2160 for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { 2161 if (DBG) log("handleRegisterNetworkRequest checking " + network.name()); 2162 if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { 2163 if (DBG) log("apparently satisfied. currentScore=" + network.getCurrentScore()); 2164 if ((bestNetwork == null) || 2165 bestNetwork.getCurrentScore() < network.getCurrentScore()) { 2166 if (!nri.isRequest) { 2167 // Not setting bestNetwork here as a listening NetworkRequest may be 2168 // satisfied by multiple Networks. Instead the request is added to 2169 // each satisfying Network and notified about each. 2170 network.addRequest(nri.request); 2171 notifyNetworkCallback(network, nri); 2172 } else { 2173 bestNetwork = network; 2174 } 2175 } 2176 } 2177 } 2178 if (bestNetwork != null) { 2179 if (DBG) log("using " + bestNetwork.name()); 2180 if (bestNetwork.networkInfo.isConnected()) { 2181 // Cancel any lingering so the linger timeout doesn't teardown this network 2182 // even though we have a request for it. 2183 bestNetwork.networkLingered.clear(); 2184 bestNetwork.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2185 } 2186 bestNetwork.addRequest(nri.request); 2187 mNetworkForRequestId.put(nri.request.requestId, bestNetwork); 2188 notifyNetworkCallback(bestNetwork, nri); 2189 score = bestNetwork.getCurrentScore(); 2190 if (nri.request.legacyType != TYPE_NONE) { 2191 mLegacyTypeTracker.add(nri.request.legacyType, bestNetwork); 2192 } 2193 } 2194 mNetworkRequests.put(nri.request, nri); 2195 if (nri.isRequest) { 2196 if (DBG) log("sending new NetworkRequest to factories"); 2197 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2198 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 2199 0, nri.request); 2200 } 2201 } 2202 } 2203 2204 private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) { 2205 NetworkRequestInfo nri = mNetworkRequests.get(request); 2206 if (nri != null) { 2207 if (Process.SYSTEM_UID != callingUid && nri.mUid != callingUid) { 2208 if (DBG) log("Attempt to release unowned NetworkRequest " + request); 2209 return; 2210 } 2211 if (DBG) log("releasing NetworkRequest " + request); 2212 nri.unlinkDeathRecipient(); 2213 mNetworkRequests.remove(request); 2214 if (nri.isRequest) { 2215 // Find all networks that are satisfying this request and remove the request 2216 // from their request lists. 2217 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2218 if (nai.networkRequests.get(nri.request.requestId) != null) { 2219 nai.networkRequests.remove(nri.request.requestId); 2220 if (DBG) { 2221 log(" Removing from current network " + nai.name() + 2222 ", leaving " + nai.networkRequests.size() + 2223 " requests."); 2224 } 2225 // check if has any requests remaining and if not, 2226 // disconnect (unless it's a VPN). 2227 boolean keep = nai.isVPN(); 2228 for (int i = 0; i < nai.networkRequests.size() && !keep; i++) { 2229 NetworkRequest r = nai.networkRequests.valueAt(i); 2230 if (mNetworkRequests.get(r).isRequest) keep = true; 2231 } 2232 if (!keep) { 2233 if (DBG) log("no live requests for " + nai.name() + "; disconnecting"); 2234 nai.asyncChannel.disconnect(); 2235 } 2236 } 2237 } 2238 2239 // Maintain the illusion. When this request arrived, we might have preteneded 2240 // that a network connected to serve it, even though the network was already 2241 // connected. Now that this request has gone away, we might have to pretend 2242 // that the network disconnected. LegacyTypeTracker will generate that 2243 // phatom disconnect for this type. 2244 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2245 if (nai != null) { 2246 mNetworkForRequestId.remove(nri.request.requestId); 2247 if (nri.request.legacyType != TYPE_NONE) { 2248 mLegacyTypeTracker.remove(nri.request.legacyType, nai); 2249 } 2250 } 2251 2252 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2253 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 2254 nri.request); 2255 } 2256 } else { 2257 // listens don't have a singular affectedNetwork. Check all networks to see 2258 // if this listen request applies and remove it. 2259 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2260 nai.networkRequests.remove(nri.request.requestId); 2261 } 2262 } 2263 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 2264 } 2265 } 2266 2267 private class InternalHandler extends Handler { 2268 public InternalHandler(Looper looper) { 2269 super(looper); 2270 } 2271 2272 @Override 2273 public void handleMessage(Message msg) { 2274 NetworkInfo info; 2275 switch (msg.what) { 2276 case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: 2277 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 2278 String causedBy = null; 2279 synchronized (ConnectivityService.this) { 2280 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 2281 mNetTransitionWakeLock.isHeld()) { 2282 mNetTransitionWakeLock.release(); 2283 causedBy = mNetTransitionWakeLockCausedBy; 2284 } else { 2285 break; 2286 } 2287 } 2288 if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { 2289 log("Failed to find a new network - expiring NetTransition Wakelock"); 2290 } else { 2291 log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + 2292 " cleared because we found a replacement network"); 2293 } 2294 break; 2295 } 2296 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 2297 handleDeprecatedGlobalHttpProxy(); 2298 break; 2299 } 2300 case EVENT_SET_DEPENDENCY_MET: { 2301 boolean met = (msg.arg1 == ENABLED); 2302 handleSetDependencyMet(msg.arg2, met); 2303 break; 2304 } 2305 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 2306 Intent intent = (Intent)msg.obj; 2307 sendStickyBroadcast(intent); 2308 break; 2309 } 2310 case EVENT_SET_POLICY_DATA_ENABLE: { 2311 final int networkType = msg.arg1; 2312 final boolean enabled = msg.arg2 == ENABLED; 2313 handleSetPolicyDataEnable(networkType, enabled); 2314 break; 2315 } 2316 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 2317 int tag = mEnableFailFastMobileDataTag.get(); 2318 if (msg.arg1 == tag) { 2319 MobileDataStateTracker mobileDst = 2320 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2321 if (mobileDst != null) { 2322 mobileDst.setEnableFailFastMobileData(msg.arg2); 2323 } 2324 } else { 2325 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 2326 + " != tag:" + tag); 2327 } 2328 break; 2329 } 2330 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 2331 handleNetworkSamplingTimeout(); 2332 break; 2333 } 2334 case EVENT_PROXY_HAS_CHANGED: { 2335 handleApplyDefaultProxy((ProxyInfo)msg.obj); 2336 break; 2337 } 2338 case EVENT_REGISTER_NETWORK_FACTORY: { 2339 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 2340 break; 2341 } 2342 case EVENT_UNREGISTER_NETWORK_FACTORY: { 2343 handleUnregisterNetworkFactory((Messenger)msg.obj); 2344 break; 2345 } 2346 case EVENT_REGISTER_NETWORK_AGENT: { 2347 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 2348 break; 2349 } 2350 case EVENT_REGISTER_NETWORK_REQUEST: 2351 case EVENT_REGISTER_NETWORK_LISTENER: { 2352 handleRegisterNetworkRequest(msg); 2353 break; 2354 } 2355 case EVENT_RELEASE_NETWORK_REQUEST: { 2356 handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); 2357 break; 2358 } 2359 case EVENT_SYSTEM_READY: { 2360 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2361 nai.networkMonitor.systemReady = true; 2362 } 2363 break; 2364 } 2365 } 2366 } 2367 } 2368 2369 // javadoc from interface 2370 public int tether(String iface) { 2371 ConnectivityManager.enforceTetherChangePermission(mContext); 2372 if (isTetheringSupported()) { 2373 return mTethering.tether(iface); 2374 } else { 2375 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2376 } 2377 } 2378 2379 // javadoc from interface 2380 public int untether(String iface) { 2381 ConnectivityManager.enforceTetherChangePermission(mContext); 2382 2383 if (isTetheringSupported()) { 2384 return mTethering.untether(iface); 2385 } else { 2386 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2387 } 2388 } 2389 2390 // javadoc from interface 2391 public int getLastTetherError(String iface) { 2392 enforceTetherAccessPermission(); 2393 2394 if (isTetheringSupported()) { 2395 return mTethering.getLastTetherError(iface); 2396 } else { 2397 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2398 } 2399 } 2400 2401 // TODO - proper iface API for selection by property, inspection, etc 2402 public String[] getTetherableUsbRegexs() { 2403 enforceTetherAccessPermission(); 2404 if (isTetheringSupported()) { 2405 return mTethering.getTetherableUsbRegexs(); 2406 } else { 2407 return new String[0]; 2408 } 2409 } 2410 2411 public String[] getTetherableWifiRegexs() { 2412 enforceTetherAccessPermission(); 2413 if (isTetheringSupported()) { 2414 return mTethering.getTetherableWifiRegexs(); 2415 } else { 2416 return new String[0]; 2417 } 2418 } 2419 2420 public String[] getTetherableBluetoothRegexs() { 2421 enforceTetherAccessPermission(); 2422 if (isTetheringSupported()) { 2423 return mTethering.getTetherableBluetoothRegexs(); 2424 } else { 2425 return new String[0]; 2426 } 2427 } 2428 2429 public int setUsbTethering(boolean enable) { 2430 ConnectivityManager.enforceTetherChangePermission(mContext); 2431 if (isTetheringSupported()) { 2432 return mTethering.setUsbTethering(enable); 2433 } else { 2434 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2435 } 2436 } 2437 2438 // TODO - move iface listing, queries, etc to new module 2439 // javadoc from interface 2440 public String[] getTetherableIfaces() { 2441 enforceTetherAccessPermission(); 2442 return mTethering.getTetherableIfaces(); 2443 } 2444 2445 public String[] getTetheredIfaces() { 2446 enforceTetherAccessPermission(); 2447 return mTethering.getTetheredIfaces(); 2448 } 2449 2450 public String[] getTetheringErroredIfaces() { 2451 enforceTetherAccessPermission(); 2452 return mTethering.getErroredIfaces(); 2453 } 2454 2455 public String[] getTetheredDhcpRanges() { 2456 enforceConnectivityInternalPermission(); 2457 return mTethering.getTetheredDhcpRanges(); 2458 } 2459 2460 // if ro.tether.denied = true we default to no tethering 2461 // gservices could set the secure setting to 1 though to enable it on a build where it 2462 // had previously been turned off. 2463 public boolean isTetheringSupported() { 2464 enforceTetherAccessPermission(); 2465 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 2466 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 2467 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0) 2468 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); 2469 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 2470 mTethering.getTetherableWifiRegexs().length != 0 || 2471 mTethering.getTetherableBluetoothRegexs().length != 0) && 2472 mTethering.getUpstreamIfaceTypes().length != 0); 2473 } 2474 2475 // Called when we lose the default network and have no replacement yet. 2476 // This will automatically be cleared after X seconds or a new default network 2477 // becomes CONNECTED, whichever happens first. The timer is started by the 2478 // first caller and not restarted by subsequent callers. 2479 private void requestNetworkTransitionWakelock(String forWhom) { 2480 int serialNum = 0; 2481 synchronized (this) { 2482 if (mNetTransitionWakeLock.isHeld()) return; 2483 serialNum = ++mNetTransitionWakeLockSerialNumber; 2484 mNetTransitionWakeLock.acquire(); 2485 mNetTransitionWakeLockCausedBy = forWhom; 2486 } 2487 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2488 EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), 2489 mNetTransitionWakeLockTimeout); 2490 return; 2491 } 2492 2493 // 100 percent is full good, 0 is full bad. 2494 public void reportInetCondition(int networkType, int percentage) { 2495 if (percentage > 50) return; // don't handle good network reports 2496 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 2497 if (nai != null) reportBadNetwork(nai.network); 2498 } 2499 2500 public void reportBadNetwork(Network network) { 2501 enforceAccessPermission(); 2502 enforceInternetPermission(); 2503 2504 if (network == null) return; 2505 2506 final int uid = Binder.getCallingUid(); 2507 NetworkAgentInfo nai = null; 2508 synchronized (mNetworkForNetId) { 2509 nai = mNetworkForNetId.get(network.netId); 2510 } 2511 if (nai == null) return; 2512 synchronized (nai) { 2513 if (isNetworkBlocked(nai, uid)) return; 2514 2515 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_FORCE_REEVALUATION, uid); 2516 } 2517 } 2518 2519 public ProxyInfo getProxy() { 2520 // this information is already available as a world read/writable jvm property 2521 // so this API change wouldn't have a benifit. It also breaks the passing 2522 // of proxy info to all the JVMs. 2523 // enforceAccessPermission(); 2524 synchronized (mProxyLock) { 2525 ProxyInfo ret = mGlobalProxy; 2526 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 2527 return ret; 2528 } 2529 } 2530 2531 public void setGlobalProxy(ProxyInfo proxyProperties) { 2532 enforceConnectivityInternalPermission(); 2533 2534 synchronized (mProxyLock) { 2535 if (proxyProperties == mGlobalProxy) return; 2536 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 2537 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 2538 2539 String host = ""; 2540 int port = 0; 2541 String exclList = ""; 2542 String pacFileUrl = ""; 2543 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 2544 (proxyProperties.getPacFileUrl() != null))) { 2545 if (!proxyProperties.isValid()) { 2546 if (DBG) 2547 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2548 return; 2549 } 2550 mGlobalProxy = new ProxyInfo(proxyProperties); 2551 host = mGlobalProxy.getHost(); 2552 port = mGlobalProxy.getPort(); 2553 exclList = mGlobalProxy.getExclusionListAsString(); 2554 if (proxyProperties.getPacFileUrl() != null) { 2555 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 2556 } 2557 } else { 2558 mGlobalProxy = null; 2559 } 2560 ContentResolver res = mContext.getContentResolver(); 2561 final long token = Binder.clearCallingIdentity(); 2562 try { 2563 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 2564 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 2565 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 2566 exclList); 2567 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 2568 } finally { 2569 Binder.restoreCallingIdentity(token); 2570 } 2571 } 2572 2573 if (mGlobalProxy == null) { 2574 proxyProperties = mDefaultProxy; 2575 } 2576 sendProxyBroadcast(proxyProperties); 2577 } 2578 2579 private void loadGlobalProxy() { 2580 ContentResolver res = mContext.getContentResolver(); 2581 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 2582 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 2583 String exclList = Settings.Global.getString(res, 2584 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 2585 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 2586 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 2587 ProxyInfo proxyProperties; 2588 if (!TextUtils.isEmpty(pacFileUrl)) { 2589 proxyProperties = new ProxyInfo(pacFileUrl); 2590 } else { 2591 proxyProperties = new ProxyInfo(host, port, exclList); 2592 } 2593 if (!proxyProperties.isValid()) { 2594 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2595 return; 2596 } 2597 2598 synchronized (mProxyLock) { 2599 mGlobalProxy = proxyProperties; 2600 } 2601 } 2602 } 2603 2604 public ProxyInfo getGlobalProxy() { 2605 // this information is already available as a world read/writable jvm property 2606 // so this API change wouldn't have a benifit. It also breaks the passing 2607 // of proxy info to all the JVMs. 2608 // enforceAccessPermission(); 2609 synchronized (mProxyLock) { 2610 return mGlobalProxy; 2611 } 2612 } 2613 2614 private void handleApplyDefaultProxy(ProxyInfo proxy) { 2615 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 2616 && (proxy.getPacFileUrl() == null)) { 2617 proxy = null; 2618 } 2619 synchronized (mProxyLock) { 2620 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 2621 if (mDefaultProxy == proxy) return; // catches repeated nulls 2622 if (proxy != null && !proxy.isValid()) { 2623 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 2624 return; 2625 } 2626 2627 // This call could be coming from the PacManager, containing the port of the local 2628 // proxy. If this new proxy matches the global proxy then copy this proxy to the 2629 // global (to get the correct local port), and send a broadcast. 2630 // TODO: Switch PacManager to have its own message to send back rather than 2631 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 2632 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 2633 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 2634 mGlobalProxy = proxy; 2635 sendProxyBroadcast(mGlobalProxy); 2636 return; 2637 } 2638 mDefaultProxy = proxy; 2639 2640 if (mGlobalProxy != null) return; 2641 if (!mDefaultProxyDisabled) { 2642 sendProxyBroadcast(proxy); 2643 } 2644 } 2645 } 2646 2647 private void handleDeprecatedGlobalHttpProxy() { 2648 String proxy = Settings.Global.getString(mContext.getContentResolver(), 2649 Settings.Global.HTTP_PROXY); 2650 if (!TextUtils.isEmpty(proxy)) { 2651 String data[] = proxy.split(":"); 2652 if (data.length == 0) { 2653 return; 2654 } 2655 2656 String proxyHost = data[0]; 2657 int proxyPort = 8080; 2658 if (data.length > 1) { 2659 try { 2660 proxyPort = Integer.parseInt(data[1]); 2661 } catch (NumberFormatException e) { 2662 return; 2663 } 2664 } 2665 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 2666 setGlobalProxy(p); 2667 } 2668 } 2669 2670 private void sendProxyBroadcast(ProxyInfo proxy) { 2671 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 2672 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 2673 if (DBG) log("sending Proxy Broadcast for " + proxy); 2674 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 2675 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 2676 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2677 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 2678 final long ident = Binder.clearCallingIdentity(); 2679 try { 2680 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2681 } finally { 2682 Binder.restoreCallingIdentity(ident); 2683 } 2684 } 2685 2686 private static class SettingsObserver extends ContentObserver { 2687 private int mWhat; 2688 private Handler mHandler; 2689 SettingsObserver(Handler handler, int what) { 2690 super(handler); 2691 mHandler = handler; 2692 mWhat = what; 2693 } 2694 2695 void observe(Context context) { 2696 ContentResolver resolver = context.getContentResolver(); 2697 resolver.registerContentObserver(Settings.Global.getUriFor( 2698 Settings.Global.HTTP_PROXY), false, this); 2699 } 2700 2701 @Override 2702 public void onChange(boolean selfChange) { 2703 mHandler.obtainMessage(mWhat).sendToTarget(); 2704 } 2705 } 2706 2707 private static void log(String s) { 2708 Slog.d(TAG, s); 2709 } 2710 2711 private static void loge(String s) { 2712 Slog.e(TAG, s); 2713 } 2714 2715 int convertFeatureToNetworkType(int networkType, String feature) { 2716 int usedNetworkType = networkType; 2717 2718 if(networkType == ConnectivityManager.TYPE_MOBILE) { 2719 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 2720 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 2721 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 2722 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 2723 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 2724 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 2725 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 2726 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 2727 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 2728 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 2729 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 2730 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 2731 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 2732 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 2733 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 2734 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { 2735 usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; 2736 } else { 2737 Slog.e(TAG, "Can't match any mobile netTracker!"); 2738 } 2739 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 2740 if (TextUtils.equals(feature, "p2p")) { 2741 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 2742 } else { 2743 Slog.e(TAG, "Can't match any wifi netTracker!"); 2744 } 2745 } else { 2746 Slog.e(TAG, "Unexpected network type"); 2747 } 2748 return usedNetworkType; 2749 } 2750 2751 private static <T> T checkNotNull(T value, String message) { 2752 if (value == null) { 2753 throw new NullPointerException(message); 2754 } 2755 return value; 2756 } 2757 2758 /** 2759 * Prepare for a VPN application. This method is used by VpnDialogs 2760 * and not available in ConnectivityManager. Permissions are checked 2761 * in Vpn class. 2762 * @hide 2763 */ 2764 @Override 2765 public boolean prepareVpn(String oldPackage, String newPackage) { 2766 throwIfLockdownEnabled(); 2767 int user = UserHandle.getUserId(Binder.getCallingUid()); 2768 synchronized(mVpns) { 2769 return mVpns.get(user).prepare(oldPackage, newPackage); 2770 } 2771 } 2772 2773 /** 2774 * Set whether the current VPN package has the ability to launch VPNs without 2775 * user intervention. This method is used by system UIs and not available 2776 * in ConnectivityManager. Permissions are checked in Vpn class. 2777 * @hide 2778 */ 2779 @Override 2780 public void setVpnPackageAuthorization(boolean authorized) { 2781 int user = UserHandle.getUserId(Binder.getCallingUid()); 2782 synchronized(mVpns) { 2783 mVpns.get(user).setPackageAuthorization(authorized); 2784 } 2785 } 2786 2787 /** 2788 * Configure a TUN interface and return its file descriptor. Parameters 2789 * are encoded and opaque to this class. This method is used by VpnBuilder 2790 * and not available in ConnectivityManager. Permissions are checked in 2791 * Vpn class. 2792 * @hide 2793 */ 2794 @Override 2795 public ParcelFileDescriptor establishVpn(VpnConfig config) { 2796 throwIfLockdownEnabled(); 2797 int user = UserHandle.getUserId(Binder.getCallingUid()); 2798 synchronized(mVpns) { 2799 return mVpns.get(user).establish(config); 2800 } 2801 } 2802 2803 /** 2804 * Start legacy VPN, controlling native daemons as needed. Creates a 2805 * secondary thread to perform connection work, returning quickly. 2806 */ 2807 @Override 2808 public void startLegacyVpn(VpnProfile profile) { 2809 throwIfLockdownEnabled(); 2810 final LinkProperties egress = getActiveLinkProperties(); 2811 if (egress == null) { 2812 throw new IllegalStateException("Missing active network connection"); 2813 } 2814 int user = UserHandle.getUserId(Binder.getCallingUid()); 2815 synchronized(mVpns) { 2816 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 2817 } 2818 } 2819 2820 /** 2821 * Return the information of the ongoing legacy VPN. This method is used 2822 * by VpnSettings and not available in ConnectivityManager. Permissions 2823 * are checked in Vpn class. 2824 * @hide 2825 */ 2826 @Override 2827 public LegacyVpnInfo getLegacyVpnInfo() { 2828 throwIfLockdownEnabled(); 2829 int user = UserHandle.getUserId(Binder.getCallingUid()); 2830 synchronized(mVpns) { 2831 return mVpns.get(user).getLegacyVpnInfo(); 2832 } 2833 } 2834 2835 /** 2836 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 2837 * not available in ConnectivityManager. 2838 * Permissions are checked in Vpn class. 2839 * @hide 2840 */ 2841 @Override 2842 public VpnConfig getVpnConfig() { 2843 int user = UserHandle.getUserId(Binder.getCallingUid()); 2844 synchronized(mVpns) { 2845 return mVpns.get(user).getVpnConfig(); 2846 } 2847 } 2848 2849 @Override 2850 public boolean updateLockdownVpn() { 2851 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 2852 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 2853 return false; 2854 } 2855 2856 // Tear down existing lockdown if profile was removed 2857 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 2858 if (mLockdownEnabled) { 2859 if (!mKeyStore.isUnlocked()) { 2860 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 2861 return false; 2862 } 2863 2864 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 2865 final VpnProfile profile = VpnProfile.decode( 2866 profileName, mKeyStore.get(Credentials.VPN + profileName)); 2867 int user = UserHandle.getUserId(Binder.getCallingUid()); 2868 synchronized(mVpns) { 2869 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 2870 profile)); 2871 } 2872 } else { 2873 setLockdownTracker(null); 2874 } 2875 2876 return true; 2877 } 2878 2879 /** 2880 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 2881 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 2882 */ 2883 private void setLockdownTracker(LockdownVpnTracker tracker) { 2884 // Shutdown any existing tracker 2885 final LockdownVpnTracker existing = mLockdownTracker; 2886 mLockdownTracker = null; 2887 if (existing != null) { 2888 existing.shutdown(); 2889 } 2890 2891 try { 2892 if (tracker != null) { 2893 mNetd.setFirewallEnabled(true); 2894 mNetd.setFirewallInterfaceRule("lo", true); 2895 mLockdownTracker = tracker; 2896 mLockdownTracker.init(); 2897 } else { 2898 mNetd.setFirewallEnabled(false); 2899 } 2900 } catch (RemoteException e) { 2901 // ignored; NMS lives inside system_server 2902 } 2903 } 2904 2905 private void throwIfLockdownEnabled() { 2906 if (mLockdownEnabled) { 2907 throw new IllegalStateException("Unavailable in lockdown mode"); 2908 } 2909 } 2910 2911 public void supplyMessenger(int networkType, Messenger messenger) { 2912 enforceConnectivityInternalPermission(); 2913 2914 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 2915 mNetTrackers[networkType].supplyMessenger(messenger); 2916 } 2917 } 2918 2919 public int findConnectionTypeForIface(String iface) { 2920 enforceConnectivityInternalPermission(); 2921 2922 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 2923 2924 synchronized(mNetworkForNetId) { 2925 for (int i = 0; i < mNetworkForNetId.size(); i++) { 2926 NetworkAgentInfo nai = mNetworkForNetId.valueAt(i); 2927 LinkProperties lp = nai.linkProperties; 2928 if (lp != null && iface.equals(lp.getInterfaceName()) && nai.networkInfo != null) { 2929 return nai.networkInfo.getType(); 2930 } 2931 } 2932 } 2933 return ConnectivityManager.TYPE_NONE; 2934 } 2935 2936 /** 2937 * Have mobile data fail fast if enabled. 2938 * 2939 * @param enabled DctConstants.ENABLED/DISABLED 2940 */ 2941 private void setEnableFailFastMobileData(int enabled) { 2942 int tag; 2943 2944 if (enabled == DctConstants.ENABLED) { 2945 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 2946 } else { 2947 tag = mEnableFailFastMobileDataTag.get(); 2948 } 2949 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 2950 enabled)); 2951 } 2952 2953 private boolean isMobileDataStateTrackerReady() { 2954 MobileDataStateTracker mdst = 2955 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 2956 return (mdst != null) && (mdst.isReady()); 2957 } 2958 2959 /** 2960 * The ResultReceiver resultCode for checkMobileProvisioning (CMP_RESULT_CODE) 2961 */ 2962 2963 /** 2964 * No connection was possible to the network. 2965 * This is NOT a warm sim. 2966 */ 2967 private static final int CMP_RESULT_CODE_NO_CONNECTION = 0; 2968 2969 /** 2970 * A connection was made to the internet, all is well. 2971 * This is NOT a warm sim. 2972 */ 2973 private static final int CMP_RESULT_CODE_CONNECTABLE = 1; 2974 2975 /** 2976 * A connection was made but no dns server was available to resolve a name to address. 2977 * This is NOT a warm sim since provisioning network is supported. 2978 */ 2979 private static final int CMP_RESULT_CODE_NO_DNS = 2; 2980 2981 /** 2982 * A connection was made but could not open a TCP connection. 2983 * This is NOT a warm sim since provisioning network is supported. 2984 */ 2985 private static final int CMP_RESULT_CODE_NO_TCP_CONNECTION = 3; 2986 2987 /** 2988 * A connection was made but there was a redirection, we appear to be in walled garden. 2989 * This is an indication of a warm sim on a mobile network such as T-Mobile. 2990 */ 2991 private static final int CMP_RESULT_CODE_REDIRECTED = 4; 2992 2993 /** 2994 * The mobile network is a provisioning network. 2995 * This is an indication of a warm sim on a mobile network such as AT&T. 2996 */ 2997 private static final int CMP_RESULT_CODE_PROVISIONING_NETWORK = 5; 2998 2999 /** 3000 * The mobile network is provisioning 3001 */ 3002 private static final int CMP_RESULT_CODE_IS_PROVISIONING = 6; 3003 3004 private AtomicBoolean mIsProvisioningNetwork = new AtomicBoolean(false); 3005 private AtomicBoolean mIsStartingProvisioning = new AtomicBoolean(false); 3006 3007 private AtomicBoolean mIsCheckingMobileProvisioning = new AtomicBoolean(false); 3008 3009 @Override 3010 public int checkMobileProvisioning(int suggestedTimeOutMs) { 3011 int timeOutMs = -1; 3012 if (DBG) log("checkMobileProvisioning: E suggestedTimeOutMs=" + suggestedTimeOutMs); 3013 enforceConnectivityInternalPermission(); 3014 3015 final long token = Binder.clearCallingIdentity(); 3016 try { 3017 timeOutMs = suggestedTimeOutMs; 3018 if (suggestedTimeOutMs > CheckMp.MAX_TIMEOUT_MS) { 3019 timeOutMs = CheckMp.MAX_TIMEOUT_MS; 3020 } 3021 3022 // Check that mobile networks are supported 3023 if (!isNetworkSupported(ConnectivityManager.TYPE_MOBILE) 3024 || !isNetworkSupported(ConnectivityManager.TYPE_MOBILE_HIPRI)) { 3025 if (DBG) log("checkMobileProvisioning: X no mobile network"); 3026 return timeOutMs; 3027 } 3028 3029 // If we're already checking don't do it again 3030 // TODO: Add a queue of results... 3031 if (mIsCheckingMobileProvisioning.getAndSet(true)) { 3032 if (DBG) log("checkMobileProvisioning: X already checking ignore for the moment"); 3033 return timeOutMs; 3034 } 3035 3036 // Start off with mobile notification off 3037 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3038 3039 CheckMp checkMp = new CheckMp(mContext, this); 3040 CheckMp.CallBack cb = new CheckMp.CallBack() { 3041 @Override 3042 void onComplete(Integer result) { 3043 if (DBG) log("CheckMp.onComplete: result=" + result); 3044 NetworkInfo ni = 3045 mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI].getNetworkInfo(); 3046 switch(result) { 3047 case CMP_RESULT_CODE_CONNECTABLE: 3048 case CMP_RESULT_CODE_NO_CONNECTION: 3049 case CMP_RESULT_CODE_NO_DNS: 3050 case CMP_RESULT_CODE_NO_TCP_CONNECTION: { 3051 if (DBG) log("CheckMp.onComplete: ignore, connected or no connection"); 3052 break; 3053 } 3054 case CMP_RESULT_CODE_REDIRECTED: { 3055 if (DBG) log("CheckMp.onComplete: warm sim"); 3056 String url = getMobileProvisioningUrl(); 3057 if (TextUtils.isEmpty(url)) { 3058 url = getMobileRedirectedProvisioningUrl(); 3059 } 3060 if (TextUtils.isEmpty(url) == false) { 3061 if (DBG) log("CheckMp.onComplete: warm (redirected), url=" + url); 3062 setProvNotificationVisible(true, 3063 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 3064 url); 3065 } else { 3066 if (DBG) log("CheckMp.onComplete: warm (redirected), no url"); 3067 } 3068 break; 3069 } 3070 case CMP_RESULT_CODE_PROVISIONING_NETWORK: { 3071 String url = getMobileProvisioningUrl(); 3072 if (TextUtils.isEmpty(url) == false) { 3073 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), url=" + url); 3074 setProvNotificationVisible(true, 3075 ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), 3076 url); 3077 // Mark that we've got a provisioning network and 3078 // Disable Mobile Data until user actually starts provisioning. 3079 mIsProvisioningNetwork.set(true); 3080 MobileDataStateTracker mdst = (MobileDataStateTracker) 3081 mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3082 3083 // Disable radio until user starts provisioning 3084 mdst.setRadio(false); 3085 } else { 3086 if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), no url"); 3087 } 3088 break; 3089 } 3090 case CMP_RESULT_CODE_IS_PROVISIONING: { 3091 // FIXME: Need to know when provisioning is done. Probably we can 3092 // check the completion status if successful we're done if we 3093 // "timedout" or still connected to provisioning APN turn off data? 3094 if (DBG) log("CheckMp.onComplete: provisioning started"); 3095 mIsStartingProvisioning.set(false); 3096 break; 3097 } 3098 default: { 3099 loge("CheckMp.onComplete: ignore unexpected result=" + result); 3100 break; 3101 } 3102 } 3103 mIsCheckingMobileProvisioning.set(false); 3104 } 3105 }; 3106 CheckMp.Params params = 3107 new CheckMp.Params(checkMp.getDefaultUrl(), timeOutMs, cb); 3108 if (DBG) log("checkMobileProvisioning: params=" + params); 3109 // TODO: Reenable when calls to the now defunct 3110 // MobileDataStateTracker.isProvisioningNetwork() are removed. 3111 // This code should be moved to the Telephony code. 3112 // checkMp.execute(params); 3113 } finally { 3114 Binder.restoreCallingIdentity(token); 3115 if (DBG) log("checkMobileProvisioning: X"); 3116 } 3117 return timeOutMs; 3118 } 3119 3120 static class CheckMp extends 3121 AsyncTask<CheckMp.Params, Void, Integer> { 3122 private static final String CHECKMP_TAG = "CheckMp"; 3123 3124 // adb shell setprop persist.checkmp.testfailures 1 to enable testing failures 3125 private static boolean mTestingFailures; 3126 3127 // Choosing 4 loops as half of them will use HTTPS and the other half HTTP 3128 private static final int MAX_LOOPS = 4; 3129 3130 // Number of milli-seconds to complete all of the retires 3131 public static final int MAX_TIMEOUT_MS = 60000; 3132 3133 // The socket should retry only 5 seconds, the default is longer 3134 private static final int SOCKET_TIMEOUT_MS = 5000; 3135 3136 // Sleep time for network errors 3137 private static final int NET_ERROR_SLEEP_SEC = 3; 3138 3139 // Sleep time for network route establishment 3140 private static final int NET_ROUTE_ESTABLISHMENT_SLEEP_SEC = 3; 3141 3142 // Short sleep time for polling :( 3143 private static final int POLLING_SLEEP_SEC = 1; 3144 3145 private Context mContext; 3146 private ConnectivityService mCs; 3147 private TelephonyManager mTm; 3148 private Params mParams; 3149 3150 /** 3151 * Parameters for AsyncTask.execute 3152 */ 3153 static class Params { 3154 private String mUrl; 3155 private long mTimeOutMs; 3156 private CallBack mCb; 3157 3158 Params(String url, long timeOutMs, CallBack cb) { 3159 mUrl = url; 3160 mTimeOutMs = timeOutMs; 3161 mCb = cb; 3162 } 3163 3164 @Override 3165 public String toString() { 3166 return "{" + " url=" + mUrl + " mTimeOutMs=" + mTimeOutMs + " mCb=" + mCb + "}"; 3167 } 3168 } 3169 3170 // As explained to me by Brian Carlstrom and Kenny Root, Certificates can be 3171 // issued by name or ip address, for Google its by name so when we construct 3172 // this HostnameVerifier we'll pass the original Uri and use it to verify 3173 // the host. If the host name in the original uril fails we'll test the 3174 // hostname parameter just incase things change. 3175 static class CheckMpHostnameVerifier implements HostnameVerifier { 3176 Uri mOrgUri; 3177 3178 CheckMpHostnameVerifier(Uri orgUri) { 3179 mOrgUri = orgUri; 3180 } 3181 3182 @Override 3183 public boolean verify(String hostname, SSLSession session) { 3184 HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier(); 3185 String orgUriHost = mOrgUri.getHost(); 3186 boolean retVal = hv.verify(orgUriHost, session) || hv.verify(hostname, session); 3187 if (DBG) { 3188 log("isMobileOk: hostnameVerify retVal=" + retVal + " hostname=" + hostname 3189 + " orgUriHost=" + orgUriHost); 3190 } 3191 return retVal; 3192 } 3193 } 3194 3195 /** 3196 * The call back object passed in Params. onComplete will be called 3197 * on the main thread. 3198 */ 3199 abstract static class CallBack { 3200 // Called on the main thread. 3201 abstract void onComplete(Integer result); 3202 } 3203 3204 public CheckMp(Context context, ConnectivityService cs) { 3205 if (Build.IS_DEBUGGABLE) { 3206 mTestingFailures = 3207 SystemProperties.getInt("persist.checkmp.testfailures", 0) == 1; 3208 } else { 3209 mTestingFailures = false; 3210 } 3211 3212 mContext = context; 3213 mCs = cs; 3214 3215 // Setup access to TelephonyService we'll be using. 3216 mTm = (TelephonyManager) mContext.getSystemService( 3217 Context.TELEPHONY_SERVICE); 3218 } 3219 3220 /** 3221 * Get the default url to use for the test. 3222 */ 3223 public String getDefaultUrl() { 3224 // See http://go/clientsdns for usage approval 3225 String server = Settings.Global.getString(mContext.getContentResolver(), 3226 Settings.Global.CAPTIVE_PORTAL_SERVER); 3227 if (server == null) { 3228 server = "clients3.google.com"; 3229 } 3230 return "http://" + server + "/generate_204"; 3231 } 3232 3233 /** 3234 * Detect if its possible to connect to the http url. DNS based detection techniques 3235 * do not work at all hotspots. The best way to check is to perform a request to 3236 * a known address that fetches the data we expect. 3237 */ 3238 private synchronized Integer isMobileOk(Params params) { 3239 Integer result = CMP_RESULT_CODE_NO_CONNECTION; 3240 Uri orgUri = Uri.parse(params.mUrl); 3241 Random rand = new Random(); 3242 mParams = params; 3243 3244 if (mCs.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false) { 3245 result = CMP_RESULT_CODE_NO_CONNECTION; 3246 log("isMobileOk: X not mobile capable result=" + result); 3247 return result; 3248 } 3249 3250 if (mCs.mIsStartingProvisioning.get()) { 3251 result = CMP_RESULT_CODE_IS_PROVISIONING; 3252 log("isMobileOk: X is provisioning result=" + result); 3253 return result; 3254 } 3255 3256 // See if we've already determined we've got a provisioning connection, 3257 // if so we don't need to do anything active. 3258 MobileDataStateTracker mdstDefault = (MobileDataStateTracker) 3259 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3260 boolean isDefaultProvisioning = mdstDefault.isProvisioningNetwork(); 3261 log("isMobileOk: isDefaultProvisioning=" + isDefaultProvisioning); 3262 3263 MobileDataStateTracker mdstHipri = (MobileDataStateTracker) 3264 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3265 boolean isHipriProvisioning = mdstHipri.isProvisioningNetwork(); 3266 log("isMobileOk: isHipriProvisioning=" + isHipriProvisioning); 3267 3268 if (isDefaultProvisioning || isHipriProvisioning) { 3269 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3270 log("isMobileOk: X default || hipri is provisioning result=" + result); 3271 return result; 3272 } 3273 3274 try { 3275 // Continue trying to connect until time has run out 3276 long endTime = SystemClock.elapsedRealtime() + params.mTimeOutMs; 3277 3278 if (!mCs.isMobileDataStateTrackerReady()) { 3279 // Wait for MobileDataStateTracker to be ready. 3280 if (DBG) log("isMobileOk: mdst is not ready"); 3281 while(SystemClock.elapsedRealtime() < endTime) { 3282 if (mCs.isMobileDataStateTrackerReady()) { 3283 // Enable fail fast as we'll do retries here and use a 3284 // hipri connection so the default connection stays active. 3285 if (DBG) log("isMobileOk: mdst ready, enable fail fast of mobile data"); 3286 mCs.setEnableFailFastMobileData(DctConstants.ENABLED); 3287 break; 3288 } 3289 sleep(POLLING_SLEEP_SEC); 3290 } 3291 } 3292 3293 log("isMobileOk: start hipri url=" + params.mUrl); 3294 3295 // First wait until we can start using hipri 3296 Binder binder = new Binder(); 3297/* 3298 while(SystemClock.elapsedRealtime() < endTime) { 3299 int ret = mCs.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3300 Phone.FEATURE_ENABLE_HIPRI, binder); 3301 if ((ret == PhoneConstants.APN_ALREADY_ACTIVE) 3302 || (ret == PhoneConstants.APN_REQUEST_STARTED)) { 3303 log("isMobileOk: hipri started"); 3304 break; 3305 } 3306 if (VDBG) log("isMobileOk: hipri not started yet"); 3307 result = CMP_RESULT_CODE_NO_CONNECTION; 3308 sleep(POLLING_SLEEP_SEC); 3309 } 3310*/ 3311 // Continue trying to connect until time has run out 3312 while(SystemClock.elapsedRealtime() < endTime) { 3313 try { 3314 // Wait for hipri to connect. 3315 // TODO: Don't poll and handle situation where hipri fails 3316 // because default is retrying. See b/9569540 3317 NetworkInfo.State state = mCs 3318 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3319 if (state != NetworkInfo.State.CONNECTED) { 3320 if (true/*VDBG*/) { 3321 log("isMobileOk: not connected ni=" + 3322 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3323 } 3324 sleep(POLLING_SLEEP_SEC); 3325 result = CMP_RESULT_CODE_NO_CONNECTION; 3326 continue; 3327 } 3328 3329 // Hipri has started check if this is a provisioning url 3330 MobileDataStateTracker mdst = (MobileDataStateTracker) 3331 mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; 3332 if (mdst.isProvisioningNetwork()) { 3333 result = CMP_RESULT_CODE_PROVISIONING_NETWORK; 3334 if (DBG) log("isMobileOk: X isProvisioningNetwork result=" + result); 3335 return result; 3336 } else { 3337 if (DBG) log("isMobileOk: isProvisioningNetwork is false, continue"); 3338 } 3339 3340 // Get of the addresses associated with the url host. We need to use the 3341 // address otherwise HttpURLConnection object will use the name to get 3342 // the addresses and will try every address but that will bypass the 3343 // route to host we setup and the connection could succeed as the default 3344 // interface might be connected to the internet via wifi or other interface. 3345 InetAddress[] addresses; 3346 try { 3347 addresses = InetAddress.getAllByName(orgUri.getHost()); 3348 } catch (UnknownHostException e) { 3349 result = CMP_RESULT_CODE_NO_DNS; 3350 log("isMobileOk: X UnknownHostException result=" + result); 3351 return result; 3352 } 3353 log("isMobileOk: addresses=" + inetAddressesToString(addresses)); 3354 3355 // Get the type of addresses supported by this link 3356 LinkProperties lp = mCs.getLinkPropertiesForTypeInternal( 3357 ConnectivityManager.TYPE_MOBILE_HIPRI); 3358 boolean linkHasIpv4 = lp.hasIPv4Address(); 3359 boolean linkHasIpv6 = lp.hasGlobalIPv6Address(); 3360 log("isMobileOk: linkHasIpv4=" + linkHasIpv4 3361 + " linkHasIpv6=" + linkHasIpv6); 3362 3363 final ArrayList<InetAddress> validAddresses = 3364 new ArrayList<InetAddress>(addresses.length); 3365 3366 for (InetAddress addr : addresses) { 3367 if (((addr instanceof Inet4Address) && linkHasIpv4) || 3368 ((addr instanceof Inet6Address) && linkHasIpv6)) { 3369 validAddresses.add(addr); 3370 } 3371 } 3372 3373 if (validAddresses.size() == 0) { 3374 return CMP_RESULT_CODE_NO_CONNECTION; 3375 } 3376 3377 int addrTried = 0; 3378 while (true) { 3379 // Loop through at most MAX_LOOPS valid addresses or until 3380 // we run out of time 3381 if (addrTried++ >= MAX_LOOPS) { 3382 log("isMobileOk: too many loops tried - giving up"); 3383 break; 3384 } 3385 if (SystemClock.elapsedRealtime() >= endTime) { 3386 log("isMobileOk: spend too much time - giving up"); 3387 break; 3388 } 3389 3390 InetAddress hostAddr = validAddresses.get(rand.nextInt( 3391 validAddresses.size())); 3392 3393 // Make a route to host so we check the specific interface. 3394 if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI, 3395 hostAddr.getAddress())) { 3396 // Wait a short time to be sure the route is established ?? 3397 log("isMobileOk:" 3398 + " wait to establish route to hostAddr=" + hostAddr); 3399 sleep(NET_ROUTE_ESTABLISHMENT_SLEEP_SEC); 3400 } else { 3401 log("isMobileOk:" 3402 + " could not establish route to hostAddr=" + hostAddr); 3403 // Wait a short time before the next attempt 3404 sleep(NET_ERROR_SLEEP_SEC); 3405 continue; 3406 } 3407 3408 // Rewrite the url to have numeric address to use the specific route 3409 // using http for half the attempts and https for the other half. 3410 // Doing https first and http second as on a redirected walled garden 3411 // such as t-mobile uses we get a SocketTimeoutException: "SSL 3412 // handshake timed out" which we declare as 3413 // CMP_RESULT_CODE_NO_TCP_CONNECTION. We could change this, but by 3414 // having http second we will be using logic used for some time. 3415 URL newUrl; 3416 String scheme = (addrTried <= (MAX_LOOPS/2)) ? "https" : "http"; 3417 newUrl = new URL(scheme, hostAddr.getHostAddress(), 3418 orgUri.getPath()); 3419 log("isMobileOk: newUrl=" + newUrl); 3420 3421 HttpURLConnection urlConn = null; 3422 try { 3423 // Open the connection set the request headers and get the response 3424 urlConn = (HttpURLConnection)newUrl.openConnection( 3425 java.net.Proxy.NO_PROXY); 3426 if (scheme.equals("https")) { 3427 ((HttpsURLConnection)urlConn).setHostnameVerifier( 3428 new CheckMpHostnameVerifier(orgUri)); 3429 } 3430 urlConn.setInstanceFollowRedirects(false); 3431 urlConn.setConnectTimeout(SOCKET_TIMEOUT_MS); 3432 urlConn.setReadTimeout(SOCKET_TIMEOUT_MS); 3433 urlConn.setUseCaches(false); 3434 urlConn.setAllowUserInteraction(false); 3435 // Set the "Connection" to "Close" as by default "Keep-Alive" 3436 // is used which is useless in this case. 3437 urlConn.setRequestProperty("Connection", "close"); 3438 int responseCode = urlConn.getResponseCode(); 3439 3440 // For debug display the headers 3441 Map<String, List<String>> headers = urlConn.getHeaderFields(); 3442 log("isMobileOk: headers=" + headers); 3443 3444 // Close the connection 3445 urlConn.disconnect(); 3446 urlConn = null; 3447 3448 if (mTestingFailures) { 3449 // Pretend no connection, this tests using http and https 3450 result = CMP_RESULT_CODE_NO_CONNECTION; 3451 log("isMobileOk: TESTING_FAILURES, pretend no connction"); 3452 continue; 3453 } 3454 3455 if (responseCode == 204) { 3456 // Return 3457 result = CMP_RESULT_CODE_CONNECTABLE; 3458 log("isMobileOk: X got expected responseCode=" + responseCode 3459 + " result=" + result); 3460 return result; 3461 } else { 3462 // Retry to be sure this was redirected, we've gotten 3463 // occasions where a server returned 200 even though 3464 // the device didn't have a "warm" sim. 3465 log("isMobileOk: not expected responseCode=" + responseCode); 3466 // TODO - it would be nice in the single-address case to do 3467 // another DNS resolve here, but flushing the cache is a bit 3468 // heavy-handed. 3469 result = CMP_RESULT_CODE_REDIRECTED; 3470 } 3471 } catch (Exception e) { 3472 log("isMobileOk: HttpURLConnection Exception" + e); 3473 result = CMP_RESULT_CODE_NO_TCP_CONNECTION; 3474 if (urlConn != null) { 3475 urlConn.disconnect(); 3476 urlConn = null; 3477 } 3478 sleep(NET_ERROR_SLEEP_SEC); 3479 continue; 3480 } 3481 } 3482 log("isMobileOk: X loops|timed out result=" + result); 3483 return result; 3484 } catch (Exception e) { 3485 log("isMobileOk: Exception e=" + e); 3486 continue; 3487 } 3488 } 3489 log("isMobileOk: timed out"); 3490 } finally { 3491 log("isMobileOk: F stop hipri"); 3492 mCs.setEnableFailFastMobileData(DctConstants.DISABLED); 3493// mCs.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, 3494// Phone.FEATURE_ENABLE_HIPRI); 3495 3496 // Wait for hipri to disconnect. 3497 long endTime = SystemClock.elapsedRealtime() + 5000; 3498 3499 while(SystemClock.elapsedRealtime() < endTime) { 3500 NetworkInfo.State state = mCs 3501 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); 3502 if (state != NetworkInfo.State.DISCONNECTED) { 3503 if (VDBG) { 3504 log("isMobileOk: connected ni=" + 3505 mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); 3506 } 3507 sleep(POLLING_SLEEP_SEC); 3508 continue; 3509 } 3510 } 3511 3512 log("isMobileOk: X result=" + result); 3513 } 3514 return result; 3515 } 3516 3517 @Override 3518 protected Integer doInBackground(Params... params) { 3519 return isMobileOk(params[0]); 3520 } 3521 3522 @Override 3523 protected void onPostExecute(Integer result) { 3524 log("onPostExecute: result=" + result); 3525 if ((mParams != null) && (mParams.mCb != null)) { 3526 mParams.mCb.onComplete(result); 3527 } 3528 } 3529 3530 private String inetAddressesToString(InetAddress[] addresses) { 3531 StringBuffer sb = new StringBuffer(); 3532 boolean firstTime = true; 3533 for(InetAddress addr : addresses) { 3534 if (firstTime) { 3535 firstTime = false; 3536 } else { 3537 sb.append(","); 3538 } 3539 sb.append(addr); 3540 } 3541 return sb.toString(); 3542 } 3543 3544 private void printNetworkInfo() { 3545 boolean hasIccCard = mTm.hasIccCard(); 3546 int simState = mTm.getSimState(); 3547 log("hasIccCard=" + hasIccCard 3548 + " simState=" + simState); 3549 NetworkInfo[] ni = mCs.getAllNetworkInfo(); 3550 if (ni != null) { 3551 log("ni.length=" + ni.length); 3552 for (NetworkInfo netInfo: ni) { 3553 log("netInfo=" + netInfo.toString()); 3554 } 3555 } else { 3556 log("no network info ni=null"); 3557 } 3558 } 3559 3560 /** 3561 * Sleep for a few seconds then return. 3562 * @param seconds 3563 */ 3564 private static void sleep(int seconds) { 3565 long stopTime = System.nanoTime() + (seconds * 1000000000); 3566 long sleepTime; 3567 while ((sleepTime = stopTime - System.nanoTime()) > 0) { 3568 try { 3569 Thread.sleep(sleepTime / 1000000); 3570 } catch (InterruptedException ignored) { 3571 } 3572 } 3573 } 3574 3575 private static void log(String s) { 3576 Slog.d(ConnectivityService.TAG, "[" + CHECKMP_TAG + "] " + s); 3577 } 3578 } 3579 3580 // TODO: Move to ConnectivityManager and make public? 3581 private static final String CONNECTED_TO_PROVISIONING_NETWORK_ACTION = 3582 "com.android.server.connectivityservice.CONNECTED_TO_PROVISIONING_NETWORK_ACTION"; 3583 3584 private BroadcastReceiver mProvisioningReceiver = new BroadcastReceiver() { 3585 @Override 3586 public void onReceive(Context context, Intent intent) { 3587 if (intent.getAction().equals(CONNECTED_TO_PROVISIONING_NETWORK_ACTION)) { 3588 handleMobileProvisioningAction(intent.getStringExtra("EXTRA_URL")); 3589 } 3590 } 3591 }; 3592 3593 private void handleMobileProvisioningAction(String url) { 3594 // Mark notification as not visible 3595 setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); 3596 3597 // Check airplane mode 3598 boolean isAirplaneModeOn = Settings.System.getInt(mContext.getContentResolver(), 3599 Settings.Global.AIRPLANE_MODE_ON, 0) == 1; 3600 // If provisioning network and not in airplane mode handle as a special case, 3601 // otherwise launch browser with the intent directly. 3602 if (mIsProvisioningNetwork.get() && !isAirplaneModeOn) { 3603 if (DBG) log("handleMobileProvisioningAction: on prov network enable then launch"); 3604 mIsProvisioningNetwork.set(false); 3605// mIsStartingProvisioning.set(true); 3606// MobileDataStateTracker mdst = (MobileDataStateTracker) 3607// mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 3608 // Radio was disabled on CMP_RESULT_CODE_PROVISIONING_NETWORK, enable it here 3609// mdst.setRadio(true); 3610// mdst.setEnableFailFastMobileData(DctConstants.ENABLED); 3611// mdst.enableMobileProvisioning(url); 3612 } else { 3613 if (DBG) log("handleMobileProvisioningAction: not prov network"); 3614 mIsProvisioningNetwork.set(false); 3615 // Check for apps that can handle provisioning first 3616 Intent provisioningIntent = new Intent(TelephonyIntents.ACTION_CARRIER_SETUP); 3617 List<String> carrierPackages = 3618 mTelephonyManager.getCarrierPackageNamesForIntent(provisioningIntent); 3619 if (carrierPackages != null && !carrierPackages.isEmpty()) { 3620 if (carrierPackages.size() != 1) { 3621 if (DBG) log("Multiple matching carrier apps found, launching the first."); 3622 } 3623 provisioningIntent.setPackage(carrierPackages.get(0)); 3624 provisioningIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3625 Intent.FLAG_ACTIVITY_NEW_TASK); 3626 mContext.startActivity(provisioningIntent); 3627 } else { 3628 // If no apps exist, use standard URL ACTION_VIEW method 3629 Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, 3630 Intent.CATEGORY_APP_BROWSER); 3631 newIntent.setData(Uri.parse(url)); 3632 newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3633 Intent.FLAG_ACTIVITY_NEW_TASK); 3634 try { 3635 mContext.startActivity(newIntent); 3636 } catch (ActivityNotFoundException e) { 3637 loge("handleMobileProvisioningAction: startActivity failed" + e); 3638 } 3639 } 3640 } 3641 } 3642 3643 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 3644 private volatile boolean mIsNotificationVisible = false; 3645 3646 private void setProvNotificationVisible(boolean visible, int networkType, String extraInfo, 3647 String url) { 3648 if (DBG) { 3649 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 3650 + " extraInfo=" + extraInfo + " url=" + url); 3651 } 3652 Intent intent = null; 3653 PendingIntent pendingIntent = null; 3654 if (visible) { 3655 switch (networkType) { 3656 case ConnectivityManager.TYPE_WIFI: 3657 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3658 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3659 Intent.FLAG_ACTIVITY_NEW_TASK); 3660 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3661 break; 3662 case ConnectivityManager.TYPE_MOBILE: 3663 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3664 intent = new Intent(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); 3665 intent.putExtra("EXTRA_URL", url); 3666 intent.setFlags(0); 3667 pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 3668 break; 3669 default: 3670 intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 3671 intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | 3672 Intent.FLAG_ACTIVITY_NEW_TASK); 3673 pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0); 3674 break; 3675 } 3676 } 3677 // Concatenate the range of types onto the range of NetIDs. 3678 int id = MAX_NET_ID + 1 + (networkType - ConnectivityManager.TYPE_NONE); 3679 setProvNotificationVisibleIntent(visible, id, networkType, extraInfo, pendingIntent); 3680 } 3681 3682 /** 3683 * Show or hide network provisioning notificaitons. 3684 * 3685 * @param id an identifier that uniquely identifies this notification. This must match 3686 * between show and hide calls. We use the NetID value but for legacy callers 3687 * we concatenate the range of types with the range of NetIDs. 3688 */ 3689 private void setProvNotificationVisibleIntent(boolean visible, int id, int networkType, 3690 String extraInfo, PendingIntent intent) { 3691 if (DBG) { 3692 log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + 3693 networkType + " extraInfo=" + extraInfo); 3694 } 3695 3696 Resources r = Resources.getSystem(); 3697 NotificationManager notificationManager = (NotificationManager) mContext 3698 .getSystemService(Context.NOTIFICATION_SERVICE); 3699 3700 if (visible) { 3701 CharSequence title; 3702 CharSequence details; 3703 int icon; 3704 Notification notification = new Notification(); 3705 switch (networkType) { 3706 case ConnectivityManager.TYPE_WIFI: 3707 title = r.getString(R.string.wifi_available_sign_in, 0); 3708 details = r.getString(R.string.network_available_sign_in_detailed, 3709 extraInfo); 3710 icon = R.drawable.stat_notify_wifi_in_range; 3711 break; 3712 case ConnectivityManager.TYPE_MOBILE: 3713 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3714 title = r.getString(R.string.network_available_sign_in, 0); 3715 // TODO: Change this to pull from NetworkInfo once a printable 3716 // name has been added to it 3717 details = mTelephonyManager.getNetworkOperatorName(); 3718 icon = R.drawable.stat_notify_rssi_in_range; 3719 break; 3720 default: 3721 title = r.getString(R.string.network_available_sign_in, 0); 3722 details = r.getString(R.string.network_available_sign_in_detailed, 3723 extraInfo); 3724 icon = R.drawable.stat_notify_rssi_in_range; 3725 break; 3726 } 3727 3728 notification.when = 0; 3729 notification.icon = icon; 3730 notification.flags = Notification.FLAG_AUTO_CANCEL; 3731 notification.tickerText = title; 3732 notification.color = mContext.getResources().getColor( 3733 com.android.internal.R.color.system_notification_accent_color); 3734 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 3735 notification.contentIntent = intent; 3736 3737 try { 3738 notificationManager.notify(NOTIFICATION_ID, id, notification); 3739 } catch (NullPointerException npe) { 3740 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 3741 npe.printStackTrace(); 3742 } 3743 } else { 3744 try { 3745 notificationManager.cancel(NOTIFICATION_ID, id); 3746 } catch (NullPointerException npe) { 3747 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 3748 npe.printStackTrace(); 3749 } 3750 } 3751 mIsNotificationVisible = visible; 3752 } 3753 3754 /** Location to an updatable file listing carrier provisioning urls. 3755 * An example: 3756 * 3757 * <?xml version="1.0" encoding="utf-8"?> 3758 * <provisioningUrls> 3759 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 3760 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 3761 * </provisioningUrls> 3762 */ 3763 private static final String PROVISIONING_URL_PATH = 3764 "/data/misc/radio/provisioning_urls.xml"; 3765 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 3766 3767 /** XML tag for root element. */ 3768 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 3769 /** XML tag for individual url */ 3770 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 3771 /** XML tag for redirected url */ 3772 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 3773 /** XML attribute for mcc */ 3774 private static final String ATTR_MCC = "mcc"; 3775 /** XML attribute for mnc */ 3776 private static final String ATTR_MNC = "mnc"; 3777 3778 private static final int REDIRECTED_PROVISIONING = 1; 3779 private static final int PROVISIONING = 2; 3780 3781 private String getProvisioningUrlBaseFromFile(int type) { 3782 FileReader fileReader = null; 3783 XmlPullParser parser = null; 3784 Configuration config = mContext.getResources().getConfiguration(); 3785 String tagType; 3786 3787 switch (type) { 3788 case PROVISIONING: 3789 tagType = TAG_PROVISIONING_URL; 3790 break; 3791 case REDIRECTED_PROVISIONING: 3792 tagType = TAG_REDIRECTED_URL; 3793 break; 3794 default: 3795 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 3796 type); 3797 } 3798 3799 try { 3800 fileReader = new FileReader(mProvisioningUrlFile); 3801 parser = Xml.newPullParser(); 3802 parser.setInput(fileReader); 3803 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 3804 3805 while (true) { 3806 XmlUtils.nextElement(parser); 3807 3808 String element = parser.getName(); 3809 if (element == null) break; 3810 3811 if (element.equals(tagType)) { 3812 String mcc = parser.getAttributeValue(null, ATTR_MCC); 3813 try { 3814 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 3815 String mnc = parser.getAttributeValue(null, ATTR_MNC); 3816 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 3817 parser.next(); 3818 if (parser.getEventType() == XmlPullParser.TEXT) { 3819 return parser.getText(); 3820 } 3821 } 3822 } 3823 } catch (NumberFormatException e) { 3824 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 3825 } 3826 } 3827 } 3828 return null; 3829 } catch (FileNotFoundException e) { 3830 loge("Carrier Provisioning Urls file not found"); 3831 } catch (XmlPullParserException e) { 3832 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 3833 } catch (IOException e) { 3834 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 3835 } finally { 3836 if (fileReader != null) { 3837 try { 3838 fileReader.close(); 3839 } catch (IOException e) {} 3840 } 3841 } 3842 return null; 3843 } 3844 3845 @Override 3846 public String getMobileRedirectedProvisioningUrl() { 3847 enforceConnectivityInternalPermission(); 3848 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 3849 if (TextUtils.isEmpty(url)) { 3850 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 3851 } 3852 return url; 3853 } 3854 3855 @Override 3856 public String getMobileProvisioningUrl() { 3857 enforceConnectivityInternalPermission(); 3858 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 3859 if (TextUtils.isEmpty(url)) { 3860 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 3861 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 3862 } else { 3863 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 3864 } 3865 // populate the iccid, imei and phone number in the provisioning url. 3866 if (!TextUtils.isEmpty(url)) { 3867 String phoneNumber = mTelephonyManager.getLine1Number(); 3868 if (TextUtils.isEmpty(phoneNumber)) { 3869 phoneNumber = "0000000000"; 3870 } 3871 url = String.format(url, 3872 mTelephonyManager.getSimSerialNumber() /* ICCID */, 3873 mTelephonyManager.getDeviceId() /* IMEI */, 3874 phoneNumber /* Phone numer */); 3875 } 3876 3877 return url; 3878 } 3879 3880 @Override 3881 public void setProvisioningNotificationVisible(boolean visible, int networkType, 3882 String extraInfo, String url) { 3883 enforceConnectivityInternalPermission(); 3884 setProvNotificationVisible(visible, networkType, extraInfo, url); 3885 } 3886 3887 @Override 3888 public void setAirplaneMode(boolean enable) { 3889 enforceConnectivityInternalPermission(); 3890 final long ident = Binder.clearCallingIdentity(); 3891 try { 3892 final ContentResolver cr = mContext.getContentResolver(); 3893 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 3894 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 3895 intent.putExtra("state", enable); 3896 mContext.sendBroadcast(intent); 3897 } finally { 3898 Binder.restoreCallingIdentity(ident); 3899 } 3900 } 3901 3902 private void onUserStart(int userId) { 3903 synchronized(mVpns) { 3904 Vpn userVpn = mVpns.get(userId); 3905 if (userVpn != null) { 3906 loge("Starting user already has a VPN"); 3907 return; 3908 } 3909 userVpn = new Vpn(mHandler.getLooper(), mContext, mNetd, this, userId); 3910 mVpns.put(userId, userVpn); 3911 } 3912 } 3913 3914 private void onUserStop(int userId) { 3915 synchronized(mVpns) { 3916 Vpn userVpn = mVpns.get(userId); 3917 if (userVpn == null) { 3918 loge("Stopping user has no VPN"); 3919 return; 3920 } 3921 mVpns.delete(userId); 3922 } 3923 } 3924 3925 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 3926 @Override 3927 public void onReceive(Context context, Intent intent) { 3928 final String action = intent.getAction(); 3929 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3930 if (userId == UserHandle.USER_NULL) return; 3931 3932 if (Intent.ACTION_USER_STARTING.equals(action)) { 3933 onUserStart(userId); 3934 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 3935 onUserStop(userId); 3936 } 3937 } 3938 }; 3939 3940 @Override 3941 public LinkQualityInfo getLinkQualityInfo(int networkType) { 3942 enforceAccessPermission(); 3943 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 3944 return mNetTrackers[networkType].getLinkQualityInfo(); 3945 } else { 3946 return null; 3947 } 3948 } 3949 3950 @Override 3951 public LinkQualityInfo getActiveLinkQualityInfo() { 3952 enforceAccessPermission(); 3953 if (isNetworkTypeValid(mActiveDefaultNetwork) && 3954 mNetTrackers[mActiveDefaultNetwork] != null) { 3955 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 3956 } else { 3957 return null; 3958 } 3959 } 3960 3961 @Override 3962 public LinkQualityInfo[] getAllLinkQualityInfo() { 3963 enforceAccessPermission(); 3964 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 3965 for (NetworkStateTracker tracker : mNetTrackers) { 3966 if (tracker != null) { 3967 LinkQualityInfo li = tracker.getLinkQualityInfo(); 3968 if (li != null) { 3969 result.add(li); 3970 } 3971 } 3972 } 3973 3974 return result.toArray(new LinkQualityInfo[result.size()]); 3975 } 3976 3977 /* Infrastructure for network sampling */ 3978 3979 private void handleNetworkSamplingTimeout() { 3980 3981 if (SAMPLE_DBG) log("Sampling interval elapsed, updating statistics .."); 3982 3983 // initialize list of interfaces .. 3984 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 3985 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 3986 for (NetworkStateTracker tracker : mNetTrackers) { 3987 if (tracker != null) { 3988 String ifaceName = tracker.getNetworkInterfaceName(); 3989 if (ifaceName != null) { 3990 mapIfaceToSample.put(ifaceName, null); 3991 } 3992 } 3993 } 3994 3995 // Read samples for all interfaces 3996 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 3997 3998 // process samples for all networks 3999 for (NetworkStateTracker tracker : mNetTrackers) { 4000 if (tracker != null) { 4001 String ifaceName = tracker.getNetworkInterfaceName(); 4002 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 4003 if (ss != null) { 4004 // end the previous sampling cycle 4005 tracker.stopSampling(ss); 4006 // start a new sampling cycle .. 4007 tracker.startSampling(ss); 4008 } 4009 } 4010 } 4011 4012 if (SAMPLE_DBG) log("Done."); 4013 4014 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 4015 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 4016 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 4017 4018 if (SAMPLE_DBG) { 4019 log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 4020 } 4021 4022 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 4023 } 4024 4025 /** 4026 * Sets a network sampling alarm. 4027 */ 4028 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 4029 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 4030 int alarmType; 4031 if (Resources.getSystem().getBoolean( 4032 R.bool.config_networkSamplingWakesDevice)) { 4033 alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP; 4034 } else { 4035 alarmType = AlarmManager.ELAPSED_REALTIME; 4036 } 4037 mAlarmManager.set(alarmType, wakeupTime, intent); 4038 } 4039 4040 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 4041 new HashMap<Messenger, NetworkFactoryInfo>(); 4042 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 4043 new HashMap<NetworkRequest, NetworkRequestInfo>(); 4044 4045 private static class NetworkFactoryInfo { 4046 public final String name; 4047 public final Messenger messenger; 4048 public final AsyncChannel asyncChannel; 4049 4050 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 4051 this.name = name; 4052 this.messenger = messenger; 4053 this.asyncChannel = asyncChannel; 4054 } 4055 } 4056 4057 /** 4058 * Tracks info about the requester. 4059 * Also used to notice when the calling process dies so we can self-expire 4060 */ 4061 private class NetworkRequestInfo implements IBinder.DeathRecipient { 4062 static final boolean REQUEST = true; 4063 static final boolean LISTEN = false; 4064 4065 final NetworkRequest request; 4066 IBinder mBinder; 4067 final int mPid; 4068 final int mUid; 4069 final Messenger messenger; 4070 final boolean isRequest; 4071 4072 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 4073 super(); 4074 messenger = m; 4075 request = r; 4076 mBinder = binder; 4077 mPid = getCallingPid(); 4078 mUid = getCallingUid(); 4079 this.isRequest = isRequest; 4080 4081 try { 4082 mBinder.linkToDeath(this, 0); 4083 } catch (RemoteException e) { 4084 binderDied(); 4085 } 4086 } 4087 4088 void unlinkDeathRecipient() { 4089 mBinder.unlinkToDeath(this, 0); 4090 } 4091 4092 public void binderDied() { 4093 log("ConnectivityService NetworkRequestInfo binderDied(" + 4094 request + ", " + mBinder + ")"); 4095 releaseNetworkRequest(request); 4096 } 4097 4098 public String toString() { 4099 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 4100 mPid + " for " + request; 4101 } 4102 } 4103 4104 @Override 4105 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 4106 Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { 4107 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 4108 == false) { 4109 enforceConnectivityInternalPermission(); 4110 } else { 4111 enforceChangePermission(); 4112 } 4113 4114 networkCapabilities = new NetworkCapabilities(networkCapabilities); 4115 4116 // if UID is restricted, don't allow them to bring up metered APNs 4117 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED) 4118 == false) { 4119 final int uidRules; 4120 synchronized(mRulesLock) { 4121 uidRules = mUidRules.get(Binder.getCallingUid(), RULE_ALLOW_ALL); 4122 } 4123 if ((uidRules & RULE_REJECT_METERED) != 0) { 4124 // we could silently fail or we can filter the available nets to only give 4125 // them those they have access to. Chose the more useful 4126 networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 4127 } 4128 } 4129 4130 if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { 4131 throw new IllegalArgumentException("Bad timeout specified"); 4132 } 4133 NetworkRequest networkRequest = new NetworkRequest(networkCapabilities, legacyType, 4134 nextNetworkRequestId()); 4135 if (DBG) log("requestNetwork for " + networkRequest); 4136 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4137 NetworkRequestInfo.REQUEST); 4138 4139 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 4140 if (timeoutMs > 0) { 4141 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 4142 nri), timeoutMs); 4143 } 4144 return networkRequest; 4145 } 4146 4147 @Override 4148 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 4149 PendingIntent operation) { 4150 // TODO 4151 return null; 4152 } 4153 4154 @Override 4155 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 4156 Messenger messenger, IBinder binder) { 4157 enforceAccessPermission(); 4158 4159 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 4160 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 4161 if (DBG) log("listenForNetwork for " + networkRequest); 4162 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 4163 NetworkRequestInfo.LISTEN); 4164 4165 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 4166 return networkRequest; 4167 } 4168 4169 @Override 4170 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 4171 PendingIntent operation) { 4172 } 4173 4174 @Override 4175 public void releaseNetworkRequest(NetworkRequest networkRequest) { 4176 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), 4177 0, networkRequest)); 4178 } 4179 4180 @Override 4181 public void registerNetworkFactory(Messenger messenger, String name) { 4182 enforceConnectivityInternalPermission(); 4183 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 4184 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 4185 } 4186 4187 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 4188 if (DBG) log("Got NetworkFactory Messenger for " + nfi.name); 4189 mNetworkFactoryInfos.put(nfi.messenger, nfi); 4190 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 4191 } 4192 4193 @Override 4194 public void unregisterNetworkFactory(Messenger messenger) { 4195 enforceConnectivityInternalPermission(); 4196 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 4197 } 4198 4199 private void handleUnregisterNetworkFactory(Messenger messenger) { 4200 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 4201 if (nfi == null) { 4202 loge("Failed to find Messenger in unregisterNetworkFactory"); 4203 return; 4204 } 4205 if (DBG) log("unregisterNetworkFactory for " + nfi.name); 4206 } 4207 4208 /** 4209 * NetworkAgentInfo supporting a request by requestId. 4210 * These have already been vetted (their Capabilities satisfy the request) 4211 * and the are the highest scored network available. 4212 * the are keyed off the Requests requestId. 4213 */ 4214 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 4215 new SparseArray<NetworkAgentInfo>(); 4216 4217 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 4218 new SparseArray<NetworkAgentInfo>(); 4219 4220 // NetworkAgentInfo keyed off its connecting messenger 4221 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 4222 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 4223 new HashMap<Messenger, NetworkAgentInfo>(); 4224 4225 private final NetworkRequest mDefaultRequest; 4226 4227 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 4228 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 4229 } 4230 4231 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 4232 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 4233 int currentScore, NetworkMisc networkMisc) { 4234 enforceConnectivityInternalPermission(); 4235 4236 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), 4237 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 4238 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler, 4239 networkMisc); 4240 synchronized (this) { 4241 nai.networkMonitor.systemReady = mSystemReady; 4242 } 4243 if (DBG) log("registerNetworkAgent " + nai); 4244 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 4245 } 4246 4247 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 4248 if (VDBG) log("Got NetworkAgent Messenger"); 4249 mNetworkAgentInfos.put(na.messenger, na); 4250 assignNextNetId(na); 4251 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 4252 NetworkInfo networkInfo = na.networkInfo; 4253 na.networkInfo = null; 4254 updateNetworkInfo(na, networkInfo); 4255 } 4256 4257 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 4258 LinkProperties newLp = networkAgent.linkProperties; 4259 int netId = networkAgent.network.netId; 4260 4261 updateInterfaces(newLp, oldLp, netId); 4262 updateMtu(newLp, oldLp); 4263 updateTcpBufferSizes(networkAgent); 4264 // TODO - figure out what to do for clat 4265// for (LinkProperties lp : newLp.getStackedLinks()) { 4266// updateMtu(lp, null); 4267// } 4268 final boolean flushDns = updateRoutes(newLp, oldLp, netId); 4269 updateDnses(newLp, oldLp, netId, flushDns); 4270 updateClat(newLp, oldLp, networkAgent); 4271 if (isDefaultNetwork(networkAgent)) handleApplyDefaultProxy(newLp.getHttpProxy()); 4272 } 4273 4274 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { 4275 // Update 464xlat state. 4276 if (mClat.requiresClat(na)) { 4277 4278 // If the connection was previously using clat, but is not using it now, stop the clat 4279 // daemon. Normally, this happens automatically when the connection disconnects, but if 4280 // the disconnect is not reported, or if the connection's LinkProperties changed for 4281 // some other reason (e.g., handoff changes the IP addresses on the link), it would 4282 // still be running. If it's not running, then stopping it is a no-op. 4283 if (Nat464Xlat.isRunningClat(oldLp) && !Nat464Xlat.isRunningClat(newLp)) { 4284 mClat.stopClat(); 4285 } 4286 // If the link requires clat to be running, then start the daemon now. 4287 if (na.networkInfo.isConnected()) { 4288 mClat.startClat(na); 4289 } else { 4290 mClat.stopClat(); 4291 } 4292 } 4293 } 4294 4295 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 4296 CompareResult<String> interfaceDiff = new CompareResult<String>(); 4297 if (oldLp != null) { 4298 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 4299 } else if (newLp != null) { 4300 interfaceDiff.added = newLp.getAllInterfaceNames(); 4301 } 4302 for (String iface : interfaceDiff.added) { 4303 try { 4304 if (DBG) log("Adding iface " + iface + " to network " + netId); 4305 mNetd.addInterfaceToNetwork(iface, netId); 4306 } catch (Exception e) { 4307 loge("Exception adding interface: " + e); 4308 } 4309 } 4310 for (String iface : interfaceDiff.removed) { 4311 try { 4312 if (DBG) log("Removing iface " + iface + " from network " + netId); 4313 mNetd.removeInterfaceFromNetwork(iface, netId); 4314 } catch (Exception e) { 4315 loge("Exception removing interface: " + e); 4316 } 4317 } 4318 } 4319 4320 /** 4321 * Have netd update routes from oldLp to newLp. 4322 * @return true if routes changed between oldLp and newLp 4323 */ 4324 private boolean updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 4325 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 4326 if (oldLp != null) { 4327 routeDiff = oldLp.compareAllRoutes(newLp); 4328 } else if (newLp != null) { 4329 routeDiff.added = newLp.getAllRoutes(); 4330 } 4331 4332 // add routes before removing old in case it helps with continuous connectivity 4333 4334 // do this twice, adding non-nexthop routes first, then routes they are dependent on 4335 for (RouteInfo route : routeDiff.added) { 4336 if (route.hasGateway()) continue; 4337 if (DBG) log("Adding Route [" + route + "] to network " + netId); 4338 try { 4339 mNetd.addRoute(netId, route); 4340 } catch (Exception e) { 4341 if ((route.getDestination().getAddress() instanceof Inet4Address) || VDBG) { 4342 loge("Exception in addRoute for non-gateway: " + e); 4343 } 4344 } 4345 } 4346 for (RouteInfo route : routeDiff.added) { 4347 if (route.hasGateway() == false) continue; 4348 if (DBG) log("Adding Route [" + route + "] to network " + netId); 4349 try { 4350 mNetd.addRoute(netId, route); 4351 } catch (Exception e) { 4352 if ((route.getGateway() instanceof Inet4Address) || VDBG) { 4353 loge("Exception in addRoute for gateway: " + e); 4354 } 4355 } 4356 } 4357 4358 for (RouteInfo route : routeDiff.removed) { 4359 if (DBG) log("Removing Route [" + route + "] from network " + netId); 4360 try { 4361 mNetd.removeRoute(netId, route); 4362 } catch (Exception e) { 4363 loge("Exception in removeRoute: " + e); 4364 } 4365 } 4366 return !routeDiff.added.isEmpty() || !routeDiff.removed.isEmpty(); 4367 } 4368 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId, boolean flush) { 4369 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 4370 Collection<InetAddress> dnses = newLp.getDnsServers(); 4371 if (dnses.size() == 0 && mDefaultDns != null) { 4372 dnses = new ArrayList(); 4373 dnses.add(mDefaultDns); 4374 if (DBG) { 4375 loge("no dns provided for netId " + netId + ", so using defaults"); 4376 } 4377 } 4378 if (DBG) log("Setting Dns servers for network " + netId + " to " + dnses); 4379 try { 4380 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 4381 newLp.getDomains()); 4382 } catch (Exception e) { 4383 loge("Exception in setDnsServersForNetwork: " + e); 4384 } 4385 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 4386 if (defaultNai != null && defaultNai.network.netId == netId) { 4387 setDefaultDnsSystemProperties(dnses); 4388 } 4389 flushVmDnsCache(); 4390 } else if (flush) { 4391 try { 4392 mNetd.flushNetworkDnsCache(netId); 4393 } catch (Exception e) { 4394 loge("Exception in flushNetworkDnsCache: " + e); 4395 } 4396 flushVmDnsCache(); 4397 } 4398 } 4399 4400 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 4401 int last = 0; 4402 for (InetAddress dns : dnses) { 4403 ++last; 4404 String key = "net.dns" + last; 4405 String value = dns.getHostAddress(); 4406 SystemProperties.set(key, value); 4407 } 4408 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 4409 String key = "net.dns" + i; 4410 SystemProperties.set(key, ""); 4411 } 4412 mNumDnsEntries = last; 4413 } 4414 4415 4416 private void updateCapabilities(NetworkAgentInfo networkAgent, 4417 NetworkCapabilities networkCapabilities) { 4418 // TODO - what else here? Verify still satisfies everybody? 4419 // Check if satisfies somebody new? call callbacks? 4420 synchronized (networkAgent) { 4421 networkAgent.networkCapabilities = networkCapabilities; 4422 } 4423 } 4424 4425 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 4426 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 4427 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 4428 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 4429 networkRequest); 4430 } 4431 } 4432 4433 private void callCallbackForRequest(NetworkRequestInfo nri, 4434 NetworkAgentInfo networkAgent, int notificationType) { 4435 if (nri.messenger == null) return; // Default request has no msgr 4436 Object o; 4437 int a1 = 0; 4438 int a2 = 0; 4439 switch (notificationType) { 4440 case ConnectivityManager.CALLBACK_LOSING: 4441 a1 = 30 * 1000; // TODO - read this from NetworkMonitor 4442 // fall through 4443 case ConnectivityManager.CALLBACK_PRECHECK: 4444 case ConnectivityManager.CALLBACK_AVAILABLE: 4445 case ConnectivityManager.CALLBACK_LOST: 4446 case ConnectivityManager.CALLBACK_CAP_CHANGED: 4447 case ConnectivityManager.CALLBACK_IP_CHANGED: { 4448 o = new NetworkRequest(nri.request); 4449 a2 = networkAgent.network.netId; 4450 break; 4451 } 4452 case ConnectivityManager.CALLBACK_UNAVAIL: 4453 case ConnectivityManager.CALLBACK_RELEASED: { 4454 o = new NetworkRequest(nri.request); 4455 break; 4456 } 4457 default: { 4458 loge("Unknown notificationType " + notificationType); 4459 return; 4460 } 4461 } 4462 Message msg = Message.obtain(); 4463 msg.arg1 = a1; 4464 msg.arg2 = a2; 4465 msg.obj = o; 4466 msg.what = notificationType; 4467 try { 4468 if (VDBG) { 4469 log("sending notification " + notifyTypeToName(notificationType) + 4470 " for " + nri.request); 4471 } 4472 nri.messenger.send(msg); 4473 } catch (RemoteException e) { 4474 // may occur naturally in the race of binder death. 4475 loge("RemoteException caught trying to send a callback msg for " + nri.request); 4476 } 4477 } 4478 4479 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 4480 if (oldNetwork == null) { 4481 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 4482 return; 4483 } 4484 if (DBG) { 4485 log("handleLingerComplete for " + oldNetwork.name()); 4486 for (int i = 0; i < oldNetwork.networkRequests.size(); i++) { 4487 NetworkRequest nr = oldNetwork.networkRequests.valueAt(i); 4488 // Ignore listening requests. 4489 if (mNetworkRequests.get(nr).isRequest == false) continue; 4490 loge("Dead network still had at least " + nr); 4491 break; 4492 } 4493 } 4494 oldNetwork.asyncChannel.disconnect(); 4495 } 4496 4497 private void makeDefault(NetworkAgentInfo newNetwork) { 4498 if (DBG) log("Switching to new default network: " + newNetwork); 4499 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4500 setupDataActivityTracking(newNetwork); 4501 try { 4502 mNetd.setDefaultNetId(newNetwork.network.netId); 4503 } catch (Exception e) { 4504 loge("Exception setting default network :" + e); 4505 } 4506 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 4507 updateTcpBufferSizes(newNetwork); 4508 } 4509 4510 // Handles a network appearing or improving its score. 4511 // 4512 // - Evaluates all current NetworkRequests that can be 4513 // satisfied by newNetwork, and reassigns to newNetwork 4514 // any such requests for which newNetwork is the best. 4515 // 4516 // - Tears down any Networks that as a result are no longer 4517 // needed. A network is needed if it is the best network for 4518 // one or more NetworkRequests, or if it is a VPN. 4519 // 4520 // - Tears down newNetwork if it is validated but turns out to be 4521 // unneeded. Does not tear down newNetwork if it is 4522 // unvalidated, because future validation may improve 4523 // newNetwork's score enough that it is needed. 4524 // 4525 // NOTE: This function only adds NetworkRequests that "newNetwork" could satisfy, 4526 // it does not remove NetworkRequests that other Networks could better satisfy. 4527 // If you need to handle decreases in score, use {@link rematchAllNetworksAndRequests}. 4528 // This function should be used when possible instead of {@code rematchAllNetworksAndRequests} 4529 // as it performs better by a factor of the number of Networks. 4530 private void rematchNetworkAndRequests(NetworkAgentInfo newNetwork) { 4531 boolean keep = newNetwork.isVPN(); 4532 boolean isNewDefault = false; 4533 if (DBG) log("rematching " + newNetwork.name()); 4534 // Find and migrate to this Network any NetworkRequests for 4535 // which this network is now the best. 4536 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 4537 if (VDBG) log(" network has: " + newNetwork.networkCapabilities); 4538 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 4539 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 4540 if (newNetwork == currentNetwork) { 4541 if (DBG) log("Network " + newNetwork.name() + " was already satisfying" + 4542 " request " + nri.request.requestId + ". No change."); 4543 keep = true; 4544 continue; 4545 } 4546 4547 // check if it satisfies the NetworkCapabilities 4548 if (VDBG) log(" checking if request is satisfied: " + nri.request); 4549 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 4550 newNetwork.networkCapabilities)) { 4551 if (!nri.isRequest) { 4552 // This is not a request, it's a callback listener. 4553 // Add it to newNetwork regardless of score. 4554 newNetwork.addRequest(nri.request); 4555 continue; 4556 } 4557 4558 // next check if it's better than any current network we're using for 4559 // this request 4560 if (VDBG) { 4561 log("currentScore = " + 4562 (currentNetwork != null ? currentNetwork.getCurrentScore() : 0) + 4563 ", newScore = " + newNetwork.getCurrentScore()); 4564 } 4565 if (currentNetwork == null || 4566 currentNetwork.getCurrentScore() < newNetwork.getCurrentScore()) { 4567 if (currentNetwork != null) { 4568 if (DBG) log(" accepting network in place of " + currentNetwork.name()); 4569 currentNetwork.networkRequests.remove(nri.request.requestId); 4570 currentNetwork.networkLingered.add(nri.request); 4571 affectedNetworks.add(currentNetwork); 4572 } else { 4573 if (DBG) log(" accepting network in place of null"); 4574 } 4575 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 4576 newNetwork.addRequest(nri.request); 4577 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 4578 mLegacyTypeTracker.add(nri.request.legacyType, newNetwork); 4579 } 4580 keep = true; 4581 // Tell NetworkFactories about the new score, so they can stop 4582 // trying to connect if they know they cannot match it. 4583 // TODO - this could get expensive if we have alot of requests for this 4584 // network. Think about if there is a way to reduce this. Push 4585 // netid->request mapping to each factory? 4586 sendUpdatedScoreToFactories(nri.request, newNetwork.getCurrentScore()); 4587 if (mDefaultRequest.requestId == nri.request.requestId) { 4588 isNewDefault = true; 4589 // TODO: Remove following line. It's redundant with makeDefault call. 4590 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 4591 if (newNetwork.linkProperties != null) { 4592 updateTcpBufferSizes(newNetwork); 4593 setDefaultDnsSystemProperties( 4594 newNetwork.linkProperties.getDnsServers()); 4595 } else { 4596 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 4597 } 4598 // Maintain the illusion: since the legacy API only 4599 // understands one network at a time, we must pretend 4600 // that the current default network disconnected before 4601 // the new one connected. 4602 if (currentNetwork != null) { 4603 mLegacyTypeTracker.remove(currentNetwork.networkInfo.getType(), 4604 currentNetwork); 4605 } 4606 mDefaultInetConditionPublished = newNetwork.validated ? 100 : 0; 4607 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 4608 } 4609 } 4610 } 4611 } 4612 // Linger any networks that are no longer needed. 4613 for (NetworkAgentInfo nai : affectedNetworks) { 4614 boolean teardown = !nai.isVPN(); 4615 for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { 4616 NetworkRequest nr = nai.networkRequests.valueAt(i); 4617 try { 4618 if (mNetworkRequests.get(nr).isRequest) { 4619 teardown = false; 4620 } 4621 } catch (Exception e) { 4622 loge("Request " + nr + " not found in mNetworkRequests."); 4623 loge(" it came from request list of " + nai.name()); 4624 } 4625 } 4626 if (teardown) { 4627 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 4628 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 4629 } else { 4630 // not going to linger, so kill the list of linger networks.. only 4631 // notify them of linger if it happens as the result of gaining another, 4632 // but if they transition and old network stays up, don't tell them of linger 4633 // or very delayed loss 4634 nai.networkLingered.clear(); 4635 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 4636 } 4637 } 4638 if (keep) { 4639 if (isNewDefault) { 4640 // Notify system services that this network is up. 4641 makeDefault(newNetwork); 4642 synchronized (ConnectivityService.this) { 4643 // have a new default network, release the transition wakelock in 4644 // a second if it's held. The second pause is to allow apps 4645 // to reconnect over the new network 4646 if (mNetTransitionWakeLock.isHeld()) { 4647 mHandler.sendMessageDelayed(mHandler.obtainMessage( 4648 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 4649 mNetTransitionWakeLockSerialNumber, 0), 4650 1000); 4651 } 4652 } 4653 } 4654 4655 // Notify battery stats service about this network, both the normal 4656 // interface and any stacked links. 4657 // TODO: Avoid redoing this; this must only be done once when a network comes online. 4658 try { 4659 final IBatteryStats bs = BatteryStatsService.getService(); 4660 final int type = newNetwork.networkInfo.getType(); 4661 4662 final String baseIface = newNetwork.linkProperties.getInterfaceName(); 4663 bs.noteNetworkInterfaceType(baseIface, type); 4664 for (LinkProperties stacked : newNetwork.linkProperties.getStackedLinks()) { 4665 final String stackedIface = stacked.getInterfaceName(); 4666 bs.noteNetworkInterfaceType(stackedIface, type); 4667 NetworkStatsFactory.noteStackedIface(stackedIface, baseIface); 4668 } 4669 } catch (RemoteException ignored) { 4670 } 4671 4672 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 4673 } else if (newNetwork.validated) { 4674 // Only tear down validated networks here. Leave unvalidated to either become 4675 // validated (and get evaluated against peers, one losing here) or 4676 // NetworkMonitor reports a bad network and we tear it down then. 4677 // TODO: Could teardown unvalidated networks when their NetworkCapabilities 4678 // satisfy no NetworkRequests. 4679 if (DBG && newNetwork.networkRequests.size() != 0) { 4680 loge("tearing down network with live requests:"); 4681 for (int i=0; i < newNetwork.networkRequests.size(); i++) { 4682 loge(" " + newNetwork.networkRequests.valueAt(i)); 4683 } 4684 } 4685 if (DBG) log("Validated network turns out to be unwanted. Tear it down."); 4686 newNetwork.asyncChannel.disconnect(); 4687 } 4688 } 4689 4690 // Attempt to rematch all Networks with NetworkRequests. This may result in Networks 4691 // being disconnected. 4692 // If only one Network's score or capabilities have been modified since the last time 4693 // this function was called, pass this Network in via the "changed" arugment, otherwise 4694 // pass null. 4695 // If only one Network has been changed but its NetworkCapabilities have not changed, 4696 // pass in the Network's score (from getCurrentScore()) prior to the change via 4697 // "oldScore", otherwise pass changed.getCurrentScore() or 0 if "changed" is null. 4698 private void rematchAllNetworksAndRequests(NetworkAgentInfo changed, int oldScore) { 4699 // TODO: This may get slow. The "changed" parameter is provided for future optimization 4700 // to avoid the slowness. It is not simply enough to process just "changed", for 4701 // example in the case where "changed"'s score decreases and another network should begin 4702 // satifying a NetworkRequest that "changed" currently satisfies. 4703 4704 // Optimization: Only reprocess "changed" if its score improved. This is safe because it 4705 // can only add more NetworkRequests satisfied by "changed", and this is exactly what 4706 // rematchNetworkAndRequests() handles. 4707 if (changed != null && oldScore < changed.getCurrentScore()) { 4708 rematchNetworkAndRequests(changed); 4709 } else { 4710 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 4711 rematchNetworkAndRequests(nai); 4712 } 4713 } 4714 } 4715 4716 private void updateInetCondition(NetworkAgentInfo nai, boolean valid) { 4717 // Don't bother updating until we've graduated to validated at least once. 4718 if (!nai.validated) return; 4719 // For now only update icons for default connection. 4720 // TODO: Update WiFi and cellular icons separately. b/17237507 4721 if (!isDefaultNetwork(nai)) return; 4722 4723 int newInetCondition = valid ? 100 : 0; 4724 // Don't repeat publish. 4725 if (newInetCondition == mDefaultInetConditionPublished) return; 4726 4727 mDefaultInetConditionPublished = newInetCondition; 4728 sendInetConditionBroadcast(nai.networkInfo); 4729 } 4730 4731 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 4732 NetworkInfo.State state = newInfo.getState(); 4733 NetworkInfo oldInfo = null; 4734 synchronized (networkAgent) { 4735 oldInfo = networkAgent.networkInfo; 4736 networkAgent.networkInfo = newInfo; 4737 } 4738 if (networkAgent.isVPN() && mLockdownTracker != null) { 4739 mLockdownTracker.onVpnStateChanged(newInfo); 4740 } 4741 4742 if (oldInfo != null && oldInfo.getState() == state) { 4743 if (VDBG) log("ignoring duplicate network state non-change"); 4744 return; 4745 } 4746 if (DBG) { 4747 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 4748 (oldInfo == null ? "null" : oldInfo.getState()) + 4749 " to " + state); 4750 } 4751 4752 if (state == NetworkInfo.State.CONNECTED && !networkAgent.created) { 4753 try { 4754 // This should never fail. Specifying an already in use NetID will cause failure. 4755 if (networkAgent.isVPN()) { 4756 mNetd.createVirtualNetwork(networkAgent.network.netId, 4757 !networkAgent.linkProperties.getDnsServers().isEmpty(), 4758 (networkAgent.networkMisc == null || 4759 !networkAgent.networkMisc.allowBypass)); 4760 } else { 4761 mNetd.createPhysicalNetwork(networkAgent.network.netId); 4762 } 4763 } catch (Exception e) { 4764 loge("Error creating network " + networkAgent.network.netId + ": " 4765 + e.getMessage()); 4766 return; 4767 } 4768 networkAgent.created = true; 4769 updateLinkProperties(networkAgent, null); 4770 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 4771 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 4772 if (networkAgent.isVPN()) { 4773 // Temporarily disable the default proxy (not global). 4774 synchronized (mProxyLock) { 4775 if (!mDefaultProxyDisabled) { 4776 mDefaultProxyDisabled = true; 4777 if (mGlobalProxy == null && mDefaultProxy != null) { 4778 sendProxyBroadcast(null); 4779 } 4780 } 4781 } 4782 // TODO: support proxy per network. 4783 } 4784 // Consider network even though it is not yet validated. 4785 // TODO: All the if-statement conditions can be removed now that validation only confers 4786 // a score increase. 4787 if (mNetworkForRequestId.get(mDefaultRequest.requestId) == null && 4788 networkAgent.isVPN() == false && 4789 mDefaultRequest.networkCapabilities.satisfiedByNetworkCapabilities( 4790 networkAgent.networkCapabilities)) { 4791 rematchNetworkAndRequests(networkAgent); 4792 } 4793 } else if (state == NetworkInfo.State.DISCONNECTED || 4794 state == NetworkInfo.State.SUSPENDED) { 4795 networkAgent.asyncChannel.disconnect(); 4796 if (networkAgent.isVPN()) { 4797 synchronized (mProxyLock) { 4798 if (mDefaultProxyDisabled) { 4799 mDefaultProxyDisabled = false; 4800 if (mGlobalProxy == null && mDefaultProxy != null) { 4801 sendProxyBroadcast(mDefaultProxy); 4802 } 4803 } 4804 } 4805 } 4806 } 4807 } 4808 4809 private void updateNetworkScore(NetworkAgentInfo nai, int score) { 4810 if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); 4811 if (score < 0) { 4812 loge("updateNetworkScore for " + nai.name() + " got a negative score (" + score + 4813 "). Bumping score to min of 0"); 4814 score = 0; 4815 } 4816 4817 final int oldScore = nai.getCurrentScore(); 4818 nai.setCurrentScore(score); 4819 4820 if (nai.created) rematchAllNetworksAndRequests(nai, oldScore); 4821 4822 for (int i = 0; i < nai.networkRequests.size(); i++) { 4823 NetworkRequest nr = nai.networkRequests.valueAt(i); 4824 // Don't send listening requests to factories. b/17393458 4825 if (mNetworkRequests.get(nr).isRequest == false) continue; 4826 sendUpdatedScoreToFactories(nr, score); 4827 } 4828 } 4829 4830 // notify only this one new request of the current state 4831 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 4832 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 4833 // TODO - read state from monitor to decide what to send. 4834// if (nai.networkMonitor.isLingering()) { 4835// notifyType = NetworkCallbacks.LOSING; 4836// } else if (nai.networkMonitor.isEvaluating()) { 4837// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 4838// } 4839 callCallbackForRequest(nri, nai, notifyType); 4840 } 4841 4842 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 4843 // The NetworkInfo we actually send out has no bearing on the real 4844 // state of affairs. For example, if the default connection is mobile, 4845 // and a request for HIPRI has just gone away, we need to pretend that 4846 // HIPRI has just disconnected. So we need to set the type to HIPRI and 4847 // the state to DISCONNECTED, even though the network is of type MOBILE 4848 // and is still connected. 4849 NetworkInfo info = new NetworkInfo(nai.networkInfo); 4850 info.setType(type); 4851 if (connected) { 4852 info.setDetailedState(DetailedState.CONNECTED, null, info.getExtraInfo()); 4853 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 4854 } else { 4855 info.setDetailedState(DetailedState.DISCONNECTED, null, info.getExtraInfo()); 4856 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 4857 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 4858 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 4859 if (info.isFailover()) { 4860 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 4861 nai.networkInfo.setFailover(false); 4862 } 4863 if (info.getReason() != null) { 4864 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 4865 } 4866 if (info.getExtraInfo() != null) { 4867 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 4868 } 4869 NetworkAgentInfo newDefaultAgent = null; 4870 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 4871 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 4872 if (newDefaultAgent != null) { 4873 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 4874 newDefaultAgent.networkInfo); 4875 } else { 4876 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 4877 } 4878 } 4879 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 4880 mDefaultInetConditionPublished); 4881 final Intent immediateIntent = new Intent(intent); 4882 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 4883 sendStickyBroadcast(immediateIntent); 4884 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 4885 if (newDefaultAgent != null) { 4886 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 4887 getConnectivityChangeDelay()); 4888 } 4889 } 4890 } 4891 4892 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 4893 if (DBG) log("notifyType " + notifyTypeToName(notifyType) + " for " + networkAgent.name()); 4894 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 4895 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 4896 NetworkRequestInfo nri = mNetworkRequests.get(nr); 4897 if (VDBG) log(" sending notification for " + nr); 4898 callCallbackForRequest(nri, networkAgent, notifyType); 4899 } 4900 } 4901 4902 private String notifyTypeToName(int notifyType) { 4903 switch (notifyType) { 4904 case ConnectivityManager.CALLBACK_PRECHECK: return "PRECHECK"; 4905 case ConnectivityManager.CALLBACK_AVAILABLE: return "AVAILABLE"; 4906 case ConnectivityManager.CALLBACK_LOSING: return "LOSING"; 4907 case ConnectivityManager.CALLBACK_LOST: return "LOST"; 4908 case ConnectivityManager.CALLBACK_UNAVAIL: return "UNAVAILABLE"; 4909 case ConnectivityManager.CALLBACK_CAP_CHANGED: return "CAP_CHANGED"; 4910 case ConnectivityManager.CALLBACK_IP_CHANGED: return "IP_CHANGED"; 4911 case ConnectivityManager.CALLBACK_RELEASED: return "RELEASED"; 4912 } 4913 return "UNKNOWN"; 4914 } 4915 4916 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 4917 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4918 if (nai != null) { 4919 synchronized (nai) { 4920 return new LinkProperties(nai.linkProperties); 4921 } 4922 } 4923 return new LinkProperties(); 4924 } 4925 4926 private NetworkInfo getNetworkInfoForType(int networkType) { 4927 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 4928 return null; 4929 4930 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4931 if (nai != null) { 4932 NetworkInfo result = new NetworkInfo(nai.networkInfo); 4933 result.setType(networkType); 4934 return result; 4935 } else { 4936 NetworkInfo result = new NetworkInfo( 4937 networkType, 0, ConnectivityManager.getNetworkTypeName(networkType), ""); 4938 result.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, null, null); 4939 return result; 4940 } 4941 } 4942 4943 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 4944 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4945 if (nai != null) { 4946 synchronized (nai) { 4947 return new NetworkCapabilities(nai.networkCapabilities); 4948 } 4949 } 4950 return new NetworkCapabilities(); 4951 } 4952 4953 @Override 4954 public boolean addVpnAddress(String address, int prefixLength) { 4955 throwIfLockdownEnabled(); 4956 int user = UserHandle.getUserId(Binder.getCallingUid()); 4957 synchronized (mVpns) { 4958 return mVpns.get(user).addAddress(address, prefixLength); 4959 } 4960 } 4961 4962 @Override 4963 public boolean removeVpnAddress(String address, int prefixLength) { 4964 throwIfLockdownEnabled(); 4965 int user = UserHandle.getUserId(Binder.getCallingUid()); 4966 synchronized (mVpns) { 4967 return mVpns.get(user).removeAddress(address, prefixLength); 4968 } 4969 } 4970} 4971