ConnectivityService.java revision c8b9a7428d12a782deda1b807164f0ec74d1ad12
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 list.add(nai); 520 521 // Send a broadcast if this is the first network of its type or if it's the default. 522 if (list.size() == 1 || isDefaultNetwork(nai)) { 523 maybeLogBroadcast(nai, true, type); 524 sendLegacyNetworkBroadcast(nai, true, type); 525 } 526 } 527 528 /** Removes the given network from the specified legacy type list. */ 529 public void remove(int type, NetworkAgentInfo nai) { 530 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 531 if (list == null || list.isEmpty()) { 532 return; 533 } 534 535 boolean wasFirstNetwork = list.get(0).equals(nai); 536 537 if (!list.remove(nai)) { 538 return; 539 } 540 541 if (wasFirstNetwork || isDefaultNetwork(nai)) { 542 maybeLogBroadcast(nai, false, type); 543 sendLegacyNetworkBroadcast(nai, false, type); 544 } 545 546 if (!list.isEmpty() && wasFirstNetwork) { 547 if (DBG) log("Other network available for type " + type + 548 ", sending connected broadcast"); 549 maybeLogBroadcast(list.get(0), false, type); 550 sendLegacyNetworkBroadcast(list.get(0), false, type); 551 } 552 } 553 554 /** Removes the given network from all legacy type lists. */ 555 public void remove(NetworkAgentInfo nai) { 556 if (VDBG) log("Removing agent " + nai); 557 for (int type = 0; type < mTypeLists.length; type++) { 558 remove(type, nai); 559 } 560 } 561 562 private String naiToString(NetworkAgentInfo nai) { 563 String name = (nai != null) ? nai.name() : "null"; 564 String state = (nai.networkInfo != null) ? 565 nai.networkInfo.getState() + "/" + nai.networkInfo.getDetailedState() : 566 "???/???"; 567 return name + " " + state; 568 } 569 570 public void dump(IndentingPrintWriter pw) { 571 for (int type = 0; type < mTypeLists.length; type++) { 572 if (mTypeLists[type] == null) continue; 573 pw.print(type + " "); 574 pw.increaseIndent(); 575 if (mTypeLists[type].size() == 0) pw.println("none"); 576 for (NetworkAgentInfo nai : mTypeLists[type]) { 577 pw.println(naiToString(nai)); 578 } 579 pw.decreaseIndent(); 580 } 581 } 582 583 // This class needs its own log method because it has a different TAG. 584 private void log(String s) { 585 Slog.d(TAG, s); 586 } 587 588 } 589 private LegacyTypeTracker mLegacyTypeTracker = new LegacyTypeTracker(); 590 591 public ConnectivityService(Context context, INetworkManagementService netManager, 592 INetworkStatsService statsService, INetworkPolicyManager policyManager) { 593 if (DBG) log("ConnectivityService starting up"); 594 595 NetworkCapabilities netCap = new NetworkCapabilities(); 596 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 597 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 598 mDefaultRequest = new NetworkRequest(netCap, TYPE_NONE, nextNetworkRequestId()); 599 NetworkRequestInfo nri = new NetworkRequestInfo(null, mDefaultRequest, new Binder(), 600 NetworkRequestInfo.REQUEST); 601 mNetworkRequests.put(mDefaultRequest, nri); 602 603 HandlerThread handlerThread = new HandlerThread("ConnectivityServiceThread"); 604 handlerThread.start(); 605 mHandler = new InternalHandler(handlerThread.getLooper()); 606 mTrackerHandler = new NetworkStateTrackerHandler(handlerThread.getLooper()); 607 608 // setup our unique device name 609 if (TextUtils.isEmpty(SystemProperties.get("net.hostname"))) { 610 String id = Settings.Secure.getString(context.getContentResolver(), 611 Settings.Secure.ANDROID_ID); 612 if (id != null && id.length() > 0) { 613 String name = new String("android-").concat(id); 614 SystemProperties.set("net.hostname", name); 615 } 616 } 617 618 // read our default dns server ip 619 String dns = Settings.Global.getString(context.getContentResolver(), 620 Settings.Global.DEFAULT_DNS_SERVER); 621 if (dns == null || dns.length() == 0) { 622 dns = context.getResources().getString( 623 com.android.internal.R.string.config_default_dns_server); 624 } 625 try { 626 mDefaultDns = NetworkUtils.numericToInetAddress(dns); 627 } catch (IllegalArgumentException e) { 628 loge("Error setting defaultDns using " + dns); 629 } 630 631 mContext = checkNotNull(context, "missing Context"); 632 mNetd = checkNotNull(netManager, "missing INetworkManagementService"); 633 mPolicyManager = checkNotNull(policyManager, "missing INetworkPolicyManager"); 634 mKeyStore = KeyStore.getInstance(); 635 mTelephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 636 637 try { 638 mPolicyManager.registerListener(mPolicyListener); 639 } catch (RemoteException e) { 640 // ouch, no rules updates means some processes may never get network 641 loge("unable to register INetworkPolicyListener" + e.toString()); 642 } 643 644 final PowerManager powerManager = (PowerManager) context.getSystemService( 645 Context.POWER_SERVICE); 646 mNetTransitionWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); 647 mNetTransitionWakeLockTimeout = mContext.getResources().getInteger( 648 com.android.internal.R.integer.config_networkTransitionTimeout); 649 650 mNetTrackers = new NetworkStateTracker[ 651 ConnectivityManager.MAX_NETWORK_TYPE+1]; 652 653 mNetConfigs = new NetworkConfig[ConnectivityManager.MAX_NETWORK_TYPE+1]; 654 655 // TODO: What is the "correct" way to do determine if this is a wifi only device? 656 boolean wifiOnly = SystemProperties.getBoolean("ro.radio.noril", false); 657 log("wifiOnly=" + wifiOnly); 658 String[] naStrings = context.getResources().getStringArray( 659 com.android.internal.R.array.networkAttributes); 660 for (String naString : naStrings) { 661 try { 662 NetworkConfig n = new NetworkConfig(naString); 663 if (VDBG) log("naString=" + naString + " config=" + n); 664 if (n.type > ConnectivityManager.MAX_NETWORK_TYPE) { 665 loge("Error in networkAttributes - ignoring attempt to define type " + 666 n.type); 667 continue; 668 } 669 if (wifiOnly && ConnectivityManager.isNetworkTypeMobile(n.type)) { 670 log("networkAttributes - ignoring mobile as this dev is wifiOnly " + 671 n.type); 672 continue; 673 } 674 if (mNetConfigs[n.type] != null) { 675 loge("Error in networkAttributes - ignoring attempt to redefine type " + 676 n.type); 677 continue; 678 } 679 mLegacyTypeTracker.addSupportedType(n.type); 680 681 mNetConfigs[n.type] = n; 682 mNetworksDefined++; 683 } catch(Exception e) { 684 // ignore it - leave the entry null 685 } 686 } 687 if (VDBG) log("mNetworksDefined=" + mNetworksDefined); 688 689 mProtectedNetworks = new ArrayList<Integer>(); 690 int[] protectedNetworks = context.getResources().getIntArray( 691 com.android.internal.R.array.config_protectedNetworks); 692 for (int p : protectedNetworks) { 693 if ((mNetConfigs[p] != null) && (mProtectedNetworks.contains(p) == false)) { 694 mProtectedNetworks.add(p); 695 } else { 696 if (DBG) loge("Ignoring protectedNetwork " + p); 697 } 698 } 699 700 mTestMode = SystemProperties.get("cm.test.mode").equals("true") 701 && SystemProperties.get("ro.build.type").equals("eng"); 702 703 mTethering = new Tethering(mContext, mNetd, statsService, mHandler.getLooper()); 704 705 //set up the listener for user state for creating user VPNs 706 IntentFilter intentFilter = new IntentFilter(); 707 intentFilter.addAction(Intent.ACTION_USER_STARTING); 708 intentFilter.addAction(Intent.ACTION_USER_STOPPING); 709 mContext.registerReceiverAsUser( 710 mUserIntentReceiver, UserHandle.ALL, intentFilter, null, null); 711 mClat = new Nat464Xlat(mContext, mNetd, this, mTrackerHandler); 712 713 try { 714 mNetd.registerObserver(mTethering); 715 mNetd.registerObserver(mDataActivityObserver); 716 mNetd.registerObserver(mClat); 717 } catch (RemoteException e) { 718 loge("Error registering observer :" + e); 719 } 720 721 if (DBG) { 722 mInetLog = new ArrayList(); 723 } 724 725 mSettingsObserver = new SettingsObserver(mHandler, EVENT_APPLY_GLOBAL_HTTP_PROXY); 726 mSettingsObserver.observe(mContext); 727 728 mDataConnectionStats = new DataConnectionStats(mContext); 729 mDataConnectionStats.startMonitoring(); 730 731 mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE); 732 733 IntentFilter filter = new IntentFilter(); 734 filter.addAction(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 735 mContext.registerReceiver( 736 new BroadcastReceiver() { 737 @Override 738 public void onReceive(Context context, Intent intent) { 739 String action = intent.getAction(); 740 if (action.equals(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED)) { 741 mHandler.sendMessage(mHandler.obtainMessage 742 (EVENT_SAMPLE_INTERVAL_ELAPSED)); 743 } 744 } 745 }, 746 new IntentFilter(filter)); 747 748 mPacManager = new PacManager(mContext, mHandler, EVENT_PROXY_HAS_CHANGED); 749 750 mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); 751 } 752 753 private synchronized int nextNetworkRequestId() { 754 return mNextNetworkRequestId++; 755 } 756 757 private void assignNextNetId(NetworkAgentInfo nai) { 758 synchronized (mNetworkForNetId) { 759 for (int i = MIN_NET_ID; i <= MAX_NET_ID; i++) { 760 int netId = mNextNetId; 761 if (++mNextNetId > MAX_NET_ID) mNextNetId = MIN_NET_ID; 762 // Make sure NetID unused. http://b/16815182 763 if (mNetworkForNetId.get(netId) == null) { 764 nai.network = new Network(netId); 765 mNetworkForNetId.put(netId, nai); 766 return; 767 } 768 } 769 } 770 throw new IllegalStateException("No free netIds"); 771 } 772 773 private int getConnectivityChangeDelay() { 774 final ContentResolver cr = mContext.getContentResolver(); 775 776 /** Check system properties for the default value then use secure settings value, if any. */ 777 int defaultDelay = SystemProperties.getInt( 778 "conn." + Settings.Global.CONNECTIVITY_CHANGE_DELAY, 779 ConnectivityManager.CONNECTIVITY_CHANGE_DELAY_DEFAULT); 780 return Settings.Global.getInt(cr, Settings.Global.CONNECTIVITY_CHANGE_DELAY, 781 defaultDelay); 782 } 783 784 private boolean teardown(NetworkStateTracker netTracker) { 785 if (netTracker.teardown()) { 786 netTracker.setTeardownRequested(true); 787 return true; 788 } else { 789 return false; 790 } 791 } 792 793 /** 794 * Check if UID should be blocked from using the network represented by the given networkType. 795 * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. 796 */ 797 private boolean isNetworkBlocked(int networkType, int uid) { 798 return isNetworkWithLinkPropertiesBlocked(getLinkPropertiesForType(networkType), uid); 799 } 800 801 /** 802 * Check if UID should be blocked from using the network represented by the given 803 * NetworkAgentInfo. 804 */ 805 private boolean isNetworkBlocked(NetworkAgentInfo nai, int uid) { 806 return isNetworkWithLinkPropertiesBlocked(nai.linkProperties, uid); 807 } 808 809 /** 810 * Check if UID should be blocked from using the network with the given LinkProperties. 811 */ 812 private boolean isNetworkWithLinkPropertiesBlocked(LinkProperties lp, int uid) { 813 final boolean networkCostly; 814 final int uidRules; 815 816 final String iface = (lp == null ? "" : lp.getInterfaceName()); 817 synchronized (mRulesLock) { 818 networkCostly = mMeteredIfaces.contains(iface); 819 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 820 } 821 822 if (networkCostly && (uidRules & RULE_REJECT_METERED) != 0) { 823 return true; 824 } 825 826 // no restrictive rules; network is visible 827 return false; 828 } 829 830 /** 831 * Return a filtered {@link NetworkInfo}, potentially marked 832 * {@link DetailedState#BLOCKED} based on 833 * {@link #isNetworkBlocked}. 834 * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. 835 */ 836 private NetworkInfo getFilteredNetworkInfo(int networkType, int uid) { 837 NetworkInfo info = getNetworkInfoForType(networkType); 838 return getFilteredNetworkInfo(info, networkType, uid); 839 } 840 841 /* 842 * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. 843 */ 844 private NetworkInfo getFilteredNetworkInfo(NetworkInfo info, int networkType, int uid) { 845 if (isNetworkBlocked(networkType, uid)) { 846 // network is blocked; clone and override state 847 info = new NetworkInfo(info); 848 info.setDetailedState(DetailedState.BLOCKED, null, null); 849 if (VDBG) log("returning Blocked NetworkInfo"); 850 } 851 if (mLockdownTracker != null) { 852 info = mLockdownTracker.augmentNetworkInfo(info); 853 if (VDBG) log("returning Locked NetworkInfo"); 854 } 855 return info; 856 } 857 858 private NetworkInfo getFilteredNetworkInfo(NetworkAgentInfo nai, int uid) { 859 NetworkInfo info = nai.networkInfo; 860 if (isNetworkBlocked(nai, uid)) { 861 // network is blocked; clone and override state 862 info = new NetworkInfo(info); 863 info.setDetailedState(DetailedState.BLOCKED, null, null); 864 if (DBG) log("returning Blocked NetworkInfo"); 865 } 866 if (mLockdownTracker != null) { 867 info = mLockdownTracker.augmentNetworkInfo(info); 868 if (DBG) log("returning Locked NetworkInfo"); 869 } 870 return info; 871 } 872 873 /** 874 * Return NetworkInfo for the active (i.e., connected) network interface. 875 * It is assumed that at most one network is active at a time. If more 876 * than one is active, it is indeterminate which will be returned. 877 * @return the info for the active network, or {@code null} if none is 878 * active 879 */ 880 @Override 881 public NetworkInfo getActiveNetworkInfo() { 882 enforceAccessPermission(); 883 final int uid = Binder.getCallingUid(); 884 return getNetworkInfo(mActiveDefaultNetwork, uid); 885 } 886 887 /** 888 * Find the first Provisioning network. 889 * 890 * @return NetworkInfo or null if none. 891 */ 892 private NetworkInfo getProvisioningNetworkInfo() { 893 enforceAccessPermission(); 894 895 // Find the first Provisioning Network 896 NetworkInfo provNi = null; 897 for (NetworkInfo ni : getAllNetworkInfo()) { 898 if (ni.isConnectedToProvisioningNetwork()) { 899 provNi = ni; 900 break; 901 } 902 } 903 if (DBG) log("getProvisioningNetworkInfo: X provNi=" + provNi); 904 return provNi; 905 } 906 907 /** 908 * Find the first Provisioning network or the ActiveDefaultNetwork 909 * if there is no Provisioning network 910 * 911 * @return NetworkInfo or null if none. 912 */ 913 @Override 914 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 915 enforceAccessPermission(); 916 917 NetworkInfo provNi = getProvisioningNetworkInfo(); 918 if (provNi == null) { 919 final int uid = Binder.getCallingUid(); 920 provNi = getNetworkInfo(mActiveDefaultNetwork, uid); 921 } 922 if (DBG) log("getProvisioningOrActiveNetworkInfo: X provNi=" + provNi); 923 return provNi; 924 } 925 926 public NetworkInfo getActiveNetworkInfoUnfiltered() { 927 enforceAccessPermission(); 928 if (isNetworkTypeValid(mActiveDefaultNetwork)) { 929 return getNetworkInfoForType(mActiveDefaultNetwork); 930 } 931 return null; 932 } 933 934 @Override 935 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 936 enforceConnectivityInternalPermission(); 937 return getNetworkInfo(mActiveDefaultNetwork, uid); 938 } 939 940 @Override 941 public NetworkInfo getNetworkInfo(int networkType) { 942 enforceAccessPermission(); 943 final int uid = Binder.getCallingUid(); 944 return getNetworkInfo(networkType, uid); 945 } 946 947 private NetworkInfo getNetworkInfo(int networkType, int uid) { 948 NetworkInfo info = null; 949 if (isNetworkTypeValid(networkType)) { 950 if (getNetworkInfoForType(networkType) != null) { 951 info = getFilteredNetworkInfo(networkType, uid); 952 } 953 } 954 return info; 955 } 956 957 @Override 958 public NetworkInfo getNetworkInfoForNetwork(Network network) { 959 enforceAccessPermission(); 960 if (network == null) return null; 961 962 final int uid = Binder.getCallingUid(); 963 NetworkAgentInfo nai = null; 964 synchronized (mNetworkForNetId) { 965 nai = mNetworkForNetId.get(network.netId); 966 } 967 if (nai == null) return null; 968 synchronized (nai) { 969 if (nai.networkInfo == null) return null; 970 971 return getFilteredNetworkInfo(nai, uid); 972 } 973 } 974 975 @Override 976 public NetworkInfo[] getAllNetworkInfo() { 977 enforceAccessPermission(); 978 final int uid = Binder.getCallingUid(); 979 final ArrayList<NetworkInfo> result = Lists.newArrayList(); 980 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 981 networkType++) { 982 if (getNetworkInfoForType(networkType) != null) { 983 result.add(getFilteredNetworkInfo(networkType, uid)); 984 } 985 } 986 return result.toArray(new NetworkInfo[result.size()]); 987 } 988 989 @Override 990 public Network getNetworkForType(int networkType) { 991 enforceAccessPermission(); 992 final int uid = Binder.getCallingUid(); 993 if (isNetworkBlocked(networkType, uid)) { 994 return null; 995 } 996 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 997 return (nai == null) ? null : nai.network; 998 } 999 1000 @Override 1001 public Network[] getAllNetworks() { 1002 enforceAccessPermission(); 1003 final ArrayList<Network> result = new ArrayList(); 1004 synchronized (mNetworkForNetId) { 1005 for (int i = 0; i < mNetworkForNetId.size(); i++) { 1006 result.add(new Network(mNetworkForNetId.valueAt(i).network)); 1007 } 1008 } 1009 return result.toArray(new Network[result.size()]); 1010 } 1011 1012 @Override 1013 public boolean isNetworkSupported(int networkType) { 1014 enforceAccessPermission(); 1015 return (isNetworkTypeValid(networkType) && (getNetworkInfoForType(networkType) != null)); 1016 } 1017 1018 /** 1019 * Return LinkProperties for the active (i.e., connected) default 1020 * network interface. It is assumed that at most one default network 1021 * is active at a time. If more than one is active, it is indeterminate 1022 * which will be returned. 1023 * @return the ip properties for the active network, or {@code null} if 1024 * none is active 1025 */ 1026 @Override 1027 public LinkProperties getActiveLinkProperties() { 1028 return getLinkPropertiesForType(mActiveDefaultNetwork); 1029 } 1030 1031 @Override 1032 public LinkProperties getLinkPropertiesForType(int networkType) { 1033 enforceAccessPermission(); 1034 if (isNetworkTypeValid(networkType)) { 1035 return getLinkPropertiesForTypeInternal(networkType); 1036 } 1037 return null; 1038 } 1039 1040 // TODO - this should be ALL networks 1041 @Override 1042 public LinkProperties getLinkProperties(Network network) { 1043 enforceAccessPermission(); 1044 NetworkAgentInfo nai = null; 1045 synchronized (mNetworkForNetId) { 1046 nai = mNetworkForNetId.get(network.netId); 1047 } 1048 1049 if (nai != null) { 1050 synchronized (nai) { 1051 return new LinkProperties(nai.linkProperties); 1052 } 1053 } 1054 return null; 1055 } 1056 1057 @Override 1058 public NetworkCapabilities getNetworkCapabilities(Network network) { 1059 enforceAccessPermission(); 1060 NetworkAgentInfo nai = null; 1061 synchronized (mNetworkForNetId) { 1062 nai = mNetworkForNetId.get(network.netId); 1063 } 1064 if (nai != null) { 1065 synchronized (nai) { 1066 return new NetworkCapabilities(nai.networkCapabilities); 1067 } 1068 } 1069 return null; 1070 } 1071 1072 @Override 1073 public NetworkState[] getAllNetworkState() { 1074 enforceAccessPermission(); 1075 final int uid = Binder.getCallingUid(); 1076 final ArrayList<NetworkState> result = Lists.newArrayList(); 1077 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1078 networkType++) { 1079 if (getNetworkInfoForType(networkType) != null) { 1080 final NetworkInfo info = getFilteredNetworkInfo(networkType, uid); 1081 final LinkProperties lp = getLinkPropertiesForTypeInternal(networkType); 1082 final NetworkCapabilities netcap = getNetworkCapabilitiesForType(networkType); 1083 result.add(new NetworkState(info, lp, netcap)); 1084 } 1085 } 1086 return result.toArray(new NetworkState[result.size()]); 1087 } 1088 1089 private NetworkState getNetworkStateUnchecked(int networkType) { 1090 if (isNetworkTypeValid(networkType)) { 1091 NetworkInfo info = getNetworkInfoForType(networkType); 1092 if (info != null) { 1093 return new NetworkState(info, 1094 getLinkPropertiesForTypeInternal(networkType), 1095 getNetworkCapabilitiesForType(networkType)); 1096 } 1097 } 1098 return null; 1099 } 1100 1101 @Override 1102 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1103 enforceAccessPermission(); 1104 1105 final long token = Binder.clearCallingIdentity(); 1106 try { 1107 final NetworkState state = getNetworkStateUnchecked(mActiveDefaultNetwork); 1108 if (state != null) { 1109 try { 1110 return mPolicyManager.getNetworkQuotaInfo(state); 1111 } catch (RemoteException e) { 1112 } 1113 } 1114 return null; 1115 } finally { 1116 Binder.restoreCallingIdentity(token); 1117 } 1118 } 1119 1120 @Override 1121 public boolean isActiveNetworkMetered() { 1122 enforceAccessPermission(); 1123 final long token = Binder.clearCallingIdentity(); 1124 try { 1125 return isNetworkMeteredUnchecked(mActiveDefaultNetwork); 1126 } finally { 1127 Binder.restoreCallingIdentity(token); 1128 } 1129 } 1130 1131 private boolean isNetworkMeteredUnchecked(int networkType) { 1132 final NetworkState state = getNetworkStateUnchecked(networkType); 1133 if (state != null) { 1134 try { 1135 return mPolicyManager.isNetworkMetered(state); 1136 } catch (RemoteException e) { 1137 } 1138 } 1139 return false; 1140 } 1141 1142 private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { 1143 @Override 1144 public void interfaceClassDataActivityChanged(String label, boolean active, long tsNanos) { 1145 int deviceType = Integer.parseInt(label); 1146 sendDataActivityBroadcast(deviceType, active, tsNanos); 1147 } 1148 }; 1149 1150 /** 1151 * Ensure that a network route exists to deliver traffic to the specified 1152 * host via the specified network interface. 1153 * @param networkType the type of the network over which traffic to the 1154 * specified host is to be routed 1155 * @param hostAddress the IP address of the host to which the route is 1156 * desired 1157 * @return {@code true} on success, {@code false} on failure 1158 */ 1159 public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress) { 1160 enforceChangePermission(); 1161 if (mProtectedNetworks.contains(networkType)) { 1162 enforceConnectivityInternalPermission(); 1163 } 1164 1165 InetAddress addr; 1166 try { 1167 addr = InetAddress.getByAddress(hostAddress); 1168 } catch (UnknownHostException e) { 1169 if (DBG) log("requestRouteToHostAddress got " + e.toString()); 1170 return false; 1171 } 1172 1173 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1174 if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); 1175 return false; 1176 } 1177 1178 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1179 if (nai == null) { 1180 if (mLegacyTypeTracker.isTypeSupported(networkType) == false) { 1181 if (DBG) log("requestRouteToHostAddress on unsupported network: " + networkType); 1182 } else { 1183 if (DBG) log("requestRouteToHostAddress on down network: " + networkType); 1184 } 1185 return false; 1186 } 1187 1188 DetailedState netState; 1189 synchronized (nai) { 1190 netState = nai.networkInfo.getDetailedState(); 1191 } 1192 1193 if (netState != DetailedState.CONNECTED && netState != DetailedState.CAPTIVE_PORTAL_CHECK) { 1194 if (VDBG) { 1195 log("requestRouteToHostAddress on down network " 1196 + "(" + networkType + ") - dropped" 1197 + " netState=" + netState); 1198 } 1199 return false; 1200 } 1201 1202 final int uid = Binder.getCallingUid(); 1203 final long token = Binder.clearCallingIdentity(); 1204 try { 1205 LinkProperties lp; 1206 int netId; 1207 synchronized (nai) { 1208 lp = nai.linkProperties; 1209 netId = nai.network.netId; 1210 } 1211 boolean ok = addLegacyRouteToHost(lp, addr, netId, uid); 1212 if (DBG) log("requestRouteToHostAddress ok=" + ok); 1213 return ok; 1214 } finally { 1215 Binder.restoreCallingIdentity(token); 1216 } 1217 } 1218 1219 private boolean addLegacyRouteToHost(LinkProperties lp, InetAddress addr, int netId, int uid) { 1220 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), addr); 1221 if (bestRoute == null) { 1222 bestRoute = RouteInfo.makeHostRoute(addr, lp.getInterfaceName()); 1223 } else { 1224 String iface = bestRoute.getInterface(); 1225 if (bestRoute.getGateway().equals(addr)) { 1226 // if there is no better route, add the implied hostroute for our gateway 1227 bestRoute = RouteInfo.makeHostRoute(addr, iface); 1228 } else { 1229 // if we will connect to this through another route, add a direct route 1230 // to it's gateway 1231 bestRoute = RouteInfo.makeHostRoute(addr, bestRoute.getGateway(), iface); 1232 } 1233 } 1234 if (DBG) log("Adding " + bestRoute + " for interface " + bestRoute.getInterface()); 1235 try { 1236 mNetd.addLegacyRouteForNetId(netId, bestRoute, uid); 1237 } catch (Exception e) { 1238 // never crash - catch them all 1239 if (DBG) loge("Exception trying to add a route: " + e); 1240 return false; 1241 } 1242 return true; 1243 } 1244 1245 public void setDataDependency(int networkType, boolean met) { 1246 enforceConnectivityInternalPermission(); 1247 1248 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_DEPENDENCY_MET, 1249 (met ? ENABLED : DISABLED), networkType)); 1250 } 1251 1252 private void handleSetDependencyMet(int networkType, boolean met) { 1253 if (mNetTrackers[networkType] != null) { 1254 if (DBG) { 1255 log("handleSetDependencyMet(" + networkType + ", " + met + ")"); 1256 } 1257 mNetTrackers[networkType].setDependencyMet(met); 1258 } 1259 } 1260 1261 private INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() { 1262 @Override 1263 public void onUidRulesChanged(int uid, int uidRules) { 1264 // caller is NPMS, since we only register with them 1265 if (LOGD_RULES) { 1266 log("onUidRulesChanged(uid=" + uid + ", uidRules=" + uidRules + ")"); 1267 } 1268 1269 synchronized (mRulesLock) { 1270 // skip update when we've already applied rules 1271 final int oldRules = mUidRules.get(uid, RULE_ALLOW_ALL); 1272 if (oldRules == uidRules) return; 1273 1274 mUidRules.put(uid, uidRules); 1275 } 1276 1277 // TODO: notify UID when it has requested targeted updates 1278 } 1279 1280 @Override 1281 public void onMeteredIfacesChanged(String[] meteredIfaces) { 1282 // caller is NPMS, since we only register with them 1283 if (LOGD_RULES) { 1284 log("onMeteredIfacesChanged(ifaces=" + Arrays.toString(meteredIfaces) + ")"); 1285 } 1286 1287 synchronized (mRulesLock) { 1288 mMeteredIfaces.clear(); 1289 for (String iface : meteredIfaces) { 1290 mMeteredIfaces.add(iface); 1291 } 1292 } 1293 } 1294 1295 @Override 1296 public void onRestrictBackgroundChanged(boolean restrictBackground) { 1297 // caller is NPMS, since we only register with them 1298 if (LOGD_RULES) { 1299 log("onRestrictBackgroundChanged(restrictBackground=" + restrictBackground + ")"); 1300 } 1301 1302 // kick off connectivity change broadcast for active network, since 1303 // global background policy change is radical. 1304 final int networkType = mActiveDefaultNetwork; 1305 if (isNetworkTypeValid(networkType)) { 1306 final NetworkStateTracker tracker = mNetTrackers[networkType]; 1307 if (tracker != null) { 1308 final NetworkInfo info = tracker.getNetworkInfo(); 1309 if (info != null && info.isConnected()) { 1310 sendConnectedBroadcast(info); 1311 } 1312 } 1313 } 1314 } 1315 }; 1316 1317 @Override 1318 public void setPolicyDataEnable(int networkType, boolean enabled) { 1319 // only someone like NPMS should only be calling us 1320 mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); 1321 1322 mHandler.sendMessage(mHandler.obtainMessage( 1323 EVENT_SET_POLICY_DATA_ENABLE, networkType, (enabled ? ENABLED : DISABLED))); 1324 } 1325 1326 private void handleSetPolicyDataEnable(int networkType, boolean enabled) { 1327 // TODO - handle this passing to factories 1328// if (isNetworkTypeValid(networkType)) { 1329// final NetworkStateTracker tracker = mNetTrackers[networkType]; 1330// if (tracker != null) { 1331// tracker.setPolicyDataEnable(enabled); 1332// } 1333// } 1334 } 1335 1336 private void enforceInternetPermission() { 1337 mContext.enforceCallingOrSelfPermission( 1338 android.Manifest.permission.INTERNET, 1339 "ConnectivityService"); 1340 } 1341 1342 private void enforceAccessPermission() { 1343 mContext.enforceCallingOrSelfPermission( 1344 android.Manifest.permission.ACCESS_NETWORK_STATE, 1345 "ConnectivityService"); 1346 } 1347 1348 private void enforceChangePermission() { 1349 mContext.enforceCallingOrSelfPermission( 1350 android.Manifest.permission.CHANGE_NETWORK_STATE, 1351 "ConnectivityService"); 1352 } 1353 1354 private void enforceTetherAccessPermission() { 1355 mContext.enforceCallingOrSelfPermission( 1356 android.Manifest.permission.ACCESS_NETWORK_STATE, 1357 "ConnectivityService"); 1358 } 1359 1360 private void enforceConnectivityInternalPermission() { 1361 mContext.enforceCallingOrSelfPermission( 1362 android.Manifest.permission.CONNECTIVITY_INTERNAL, 1363 "ConnectivityService"); 1364 } 1365 1366 public void sendConnectedBroadcast(NetworkInfo info) { 1367 enforceConnectivityInternalPermission(); 1368 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1369 sendGeneralBroadcast(info, CONNECTIVITY_ACTION); 1370 } 1371 1372 private void sendConnectedBroadcastDelayed(NetworkInfo info, int delayMs) { 1373 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1374 sendGeneralBroadcastDelayed(info, CONNECTIVITY_ACTION, delayMs); 1375 } 1376 1377 private void sendInetConditionBroadcast(NetworkInfo info) { 1378 sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION); 1379 } 1380 1381 private Intent makeGeneralIntent(NetworkInfo info, String bcastType) { 1382 if (mLockdownTracker != null) { 1383 info = mLockdownTracker.augmentNetworkInfo(info); 1384 } 1385 1386 Intent intent = new Intent(bcastType); 1387 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 1388 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 1389 if (info.isFailover()) { 1390 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 1391 info.setFailover(false); 1392 } 1393 if (info.getReason() != null) { 1394 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 1395 } 1396 if (info.getExtraInfo() != null) { 1397 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 1398 info.getExtraInfo()); 1399 } 1400 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 1401 return intent; 1402 } 1403 1404 private void sendGeneralBroadcast(NetworkInfo info, String bcastType) { 1405 sendStickyBroadcast(makeGeneralIntent(info, bcastType)); 1406 } 1407 1408 private void sendGeneralBroadcastDelayed(NetworkInfo info, String bcastType, int delayMs) { 1409 sendStickyBroadcastDelayed(makeGeneralIntent(info, bcastType), delayMs); 1410 } 1411 1412 private void sendDataActivityBroadcast(int deviceType, boolean active, long tsNanos) { 1413 Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); 1414 intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); 1415 intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); 1416 intent.putExtra(ConnectivityManager.EXTRA_REALTIME_NS, tsNanos); 1417 final long ident = Binder.clearCallingIdentity(); 1418 try { 1419 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, 1420 RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); 1421 } finally { 1422 Binder.restoreCallingIdentity(ident); 1423 } 1424 } 1425 1426 private void sendStickyBroadcast(Intent intent) { 1427 synchronized(this) { 1428 if (!mSystemReady) { 1429 mInitialBroadcast = new Intent(intent); 1430 } 1431 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1432 if (DBG) { 1433 log("sendStickyBroadcast: action=" + intent.getAction()); 1434 } 1435 1436 final long ident = Binder.clearCallingIdentity(); 1437 try { 1438 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1439 } finally { 1440 Binder.restoreCallingIdentity(ident); 1441 } 1442 } 1443 } 1444 1445 private void sendStickyBroadcastDelayed(Intent intent, int delayMs) { 1446 if (delayMs <= 0) { 1447 sendStickyBroadcast(intent); 1448 } else { 1449 if (VDBG) { 1450 log("sendStickyBroadcastDelayed: delayMs=" + delayMs + ", action=" 1451 + intent.getAction()); 1452 } 1453 mHandler.sendMessageDelayed(mHandler.obtainMessage( 1454 EVENT_SEND_STICKY_BROADCAST_INTENT, intent), delayMs); 1455 } 1456 } 1457 1458 void systemReady() { 1459 // start network sampling .. 1460 Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 1461 intent.setPackage(mContext.getPackageName()); 1462 1463 mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, 1464 SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); 1465 setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); 1466 1467 loadGlobalProxy(); 1468 1469 synchronized(this) { 1470 mSystemReady = true; 1471 if (mInitialBroadcast != null) { 1472 mContext.sendStickyBroadcastAsUser(mInitialBroadcast, UserHandle.ALL); 1473 mInitialBroadcast = null; 1474 } 1475 } 1476 // load the global proxy at startup 1477 mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY)); 1478 1479 // Try bringing up tracker, but if KeyStore isn't ready yet, wait 1480 // for user to unlock device. 1481 if (!updateLockdownVpn()) { 1482 final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_PRESENT); 1483 mContext.registerReceiver(mUserPresentReceiver, filter); 1484 } 1485 1486 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SYSTEM_READY)); 1487 } 1488 1489 private BroadcastReceiver mUserPresentReceiver = new BroadcastReceiver() { 1490 @Override 1491 public void onReceive(Context context, Intent intent) { 1492 // Try creating lockdown tracker, since user present usually means 1493 // unlocked keystore. 1494 if (updateLockdownVpn()) { 1495 mContext.unregisterReceiver(this); 1496 } 1497 } 1498 }; 1499 1500 /** @hide */ 1501 @Override 1502 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 1503 enforceConnectivityInternalPermission(); 1504 if (DBG) log("captivePortalCheckCompleted: ni=" + info + " captive=" + isCaptivePortal); 1505// mNetTrackers[info.getType()].captivePortalCheckCompleted(isCaptivePortal); 1506 } 1507 1508 /** 1509 * Setup data activity tracking for the given network. 1510 * 1511 * Every {@code setupDataActivityTracking} should be paired with a 1512 * {@link #removeDataActivityTracking} for cleanup. 1513 */ 1514 private void setupDataActivityTracking(NetworkAgentInfo networkAgent) { 1515 final String iface = networkAgent.linkProperties.getInterfaceName(); 1516 1517 final int timeout; 1518 int type = ConnectivityManager.TYPE_NONE; 1519 1520 if (networkAgent.networkCapabilities.hasTransport( 1521 NetworkCapabilities.TRANSPORT_CELLULAR)) { 1522 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1523 Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, 1524 5); 1525 type = ConnectivityManager.TYPE_MOBILE; 1526 } else if (networkAgent.networkCapabilities.hasTransport( 1527 NetworkCapabilities.TRANSPORT_WIFI)) { 1528 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1529 Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, 1530 0); 1531 type = ConnectivityManager.TYPE_WIFI; 1532 } else { 1533 // do not track any other networks 1534 timeout = 0; 1535 } 1536 1537 if (timeout > 0 && iface != null && type != ConnectivityManager.TYPE_NONE) { 1538 try { 1539 mNetd.addIdleTimer(iface, timeout, type); 1540 } catch (Exception e) { 1541 // You shall not crash! 1542 loge("Exception in setupDataActivityTracking " + e); 1543 } 1544 } 1545 } 1546 1547 /** 1548 * Remove data activity tracking when network disconnects. 1549 */ 1550 private void removeDataActivityTracking(NetworkAgentInfo networkAgent) { 1551 final String iface = networkAgent.linkProperties.getInterfaceName(); 1552 final NetworkCapabilities caps = networkAgent.networkCapabilities; 1553 1554 if (iface != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) || 1555 caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))) { 1556 try { 1557 // the call fails silently if no idletimer setup for this interface 1558 mNetd.removeIdleTimer(iface); 1559 } catch (Exception e) { 1560 loge("Exception in removeDataActivityTracking " + e); 1561 } 1562 } 1563 } 1564 1565 /** 1566 * Reads the network specific MTU size from reources. 1567 * and set it on it's iface. 1568 */ 1569 private void updateMtu(LinkProperties newLp, LinkProperties oldLp) { 1570 final String iface = newLp.getInterfaceName(); 1571 final int mtu = newLp.getMtu(); 1572 if (oldLp != null && newLp.isIdenticalMtu(oldLp)) { 1573 if (VDBG) log("identical MTU - not setting"); 1574 return; 1575 } 1576 1577 if (LinkProperties.isValidMtu(mtu, newLp.hasGlobalIPv6Address()) == false) { 1578 loge("Unexpected mtu value: " + mtu + ", " + iface); 1579 return; 1580 } 1581 1582 // Cannot set MTU without interface name 1583 if (TextUtils.isEmpty(iface)) { 1584 loge("Setting MTU size with null iface."); 1585 return; 1586 } 1587 1588 try { 1589 if (DBG) log("Setting MTU size: " + iface + ", " + mtu); 1590 mNetd.setMtu(iface, mtu); 1591 } catch (Exception e) { 1592 Slog.e(TAG, "exception in setMtu()" + e); 1593 } 1594 } 1595 1596 private static final String DEFAULT_TCP_BUFFER_SIZES = "4096,87380,110208,4096,16384,110208"; 1597 1598 private void updateTcpBufferSizes(NetworkAgentInfo nai) { 1599 if (isDefaultNetwork(nai) == false) { 1600 return; 1601 } 1602 1603 String tcpBufferSizes = nai.linkProperties.getTcpBufferSizes(); 1604 String[] values = null; 1605 if (tcpBufferSizes != null) { 1606 values = tcpBufferSizes.split(","); 1607 } 1608 1609 if (values == null || values.length != 6) { 1610 if (DBG) log("Invalid tcpBufferSizes string: " + tcpBufferSizes +", using defaults"); 1611 tcpBufferSizes = DEFAULT_TCP_BUFFER_SIZES; 1612 values = tcpBufferSizes.split(","); 1613 } 1614 1615 if (tcpBufferSizes.equals(mCurrentTcpBufferSizes)) return; 1616 1617 try { 1618 if (DBG) Slog.d(TAG, "Setting tx/rx TCP buffers to " + tcpBufferSizes); 1619 1620 final String prefix = "/sys/kernel/ipv4/tcp_"; 1621 FileUtils.stringToFile(prefix + "rmem_min", values[0]); 1622 FileUtils.stringToFile(prefix + "rmem_def", values[1]); 1623 FileUtils.stringToFile(prefix + "rmem_max", values[2]); 1624 FileUtils.stringToFile(prefix + "wmem_min", values[3]); 1625 FileUtils.stringToFile(prefix + "wmem_def", values[4]); 1626 FileUtils.stringToFile(prefix + "wmem_max", values[5]); 1627 mCurrentTcpBufferSizes = tcpBufferSizes; 1628 } catch (IOException e) { 1629 loge("Can't set TCP buffer sizes:" + e); 1630 } 1631 1632 final String defaultRwndKey = "net.tcp.default_init_rwnd"; 1633 int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0); 1634 Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(), 1635 Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue); 1636 final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd"; 1637 if (rwndValue != 0) { 1638 SystemProperties.set(sysctlKey, rwndValue.toString()); 1639 } 1640 } 1641 1642 private void flushVmDnsCache() { 1643 /* 1644 * Tell the VMs to toss their DNS caches 1645 */ 1646 Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE); 1647 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); 1648 /* 1649 * Connectivity events can happen before boot has completed ... 1650 */ 1651 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1652 final long ident = Binder.clearCallingIdentity(); 1653 try { 1654 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 1655 } finally { 1656 Binder.restoreCallingIdentity(ident); 1657 } 1658 } 1659 1660 @Override 1661 public int getRestoreDefaultNetworkDelay(int networkType) { 1662 String restoreDefaultNetworkDelayStr = SystemProperties.get( 1663 NETWORK_RESTORE_DELAY_PROP_NAME); 1664 if(restoreDefaultNetworkDelayStr != null && 1665 restoreDefaultNetworkDelayStr.length() != 0) { 1666 try { 1667 return Integer.valueOf(restoreDefaultNetworkDelayStr); 1668 } catch (NumberFormatException e) { 1669 } 1670 } 1671 // if the system property isn't set, use the value for the apn type 1672 int ret = RESTORE_DEFAULT_NETWORK_DELAY; 1673 1674 if ((networkType <= ConnectivityManager.MAX_NETWORK_TYPE) && 1675 (mNetConfigs[networkType] != null)) { 1676 ret = mNetConfigs[networkType].restoreTime; 1677 } 1678 return ret; 1679 } 1680 1681 @Override 1682 protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { 1683 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1684 if (mContext.checkCallingOrSelfPermission( 1685 android.Manifest.permission.DUMP) 1686 != PackageManager.PERMISSION_GRANTED) { 1687 pw.println("Permission Denial: can't dump ConnectivityService " + 1688 "from from pid=" + Binder.getCallingPid() + ", uid=" + 1689 Binder.getCallingUid()); 1690 return; 1691 } 1692 1693 pw.println("NetworkFactories for:"); 1694 pw.increaseIndent(); 1695 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 1696 pw.println(nfi.name); 1697 } 1698 pw.decreaseIndent(); 1699 pw.println(); 1700 1701 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 1702 pw.print("Active default network: "); 1703 if (defaultNai == null) { 1704 pw.println("none"); 1705 } else { 1706 pw.println(defaultNai.network.netId); 1707 } 1708 pw.println(); 1709 1710 pw.println("Current Networks:"); 1711 pw.increaseIndent(); 1712 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 1713 pw.println(nai.toString()); 1714 pw.increaseIndent(); 1715 pw.println("Requests:"); 1716 pw.increaseIndent(); 1717 for (int i = 0; i < nai.networkRequests.size(); i++) { 1718 pw.println(nai.networkRequests.valueAt(i).toString()); 1719 } 1720 pw.decreaseIndent(); 1721 pw.println("Lingered:"); 1722 pw.increaseIndent(); 1723 for (NetworkRequest nr : nai.networkLingered) pw.println(nr.toString()); 1724 pw.decreaseIndent(); 1725 pw.decreaseIndent(); 1726 } 1727 pw.decreaseIndent(); 1728 pw.println(); 1729 1730 pw.println("Network Requests:"); 1731 pw.increaseIndent(); 1732 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 1733 pw.println(nri.toString()); 1734 } 1735 pw.println(); 1736 pw.decreaseIndent(); 1737 1738 pw.print("mActiveDefaultNetwork: " + mActiveDefaultNetwork); 1739 if (mActiveDefaultNetwork != TYPE_NONE) { 1740 NetworkInfo activeNetworkInfo = getActiveNetworkInfo(); 1741 if (activeNetworkInfo != null) { 1742 pw.print(" " + activeNetworkInfo.getState() + 1743 "/" + activeNetworkInfo.getDetailedState()); 1744 } 1745 } 1746 pw.println(); 1747 1748 pw.println("mLegacyTypeTracker:"); 1749 pw.increaseIndent(); 1750 mLegacyTypeTracker.dump(pw); 1751 pw.decreaseIndent(); 1752 pw.println(); 1753 1754 synchronized (this) { 1755 pw.println("NetworkTransitionWakeLock is currently " + 1756 (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held."); 1757 pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy); 1758 } 1759 pw.println(); 1760 1761 mTethering.dump(fd, pw, args); 1762 1763 if (mInetLog != null) { 1764 pw.println(); 1765 pw.println("Inet condition reports:"); 1766 pw.increaseIndent(); 1767 for(int i = 0; i < mInetLog.size(); i++) { 1768 pw.println(mInetLog.get(i)); 1769 } 1770 pw.decreaseIndent(); 1771 } 1772 } 1773 1774 private boolean isLiveNetworkAgent(NetworkAgentInfo nai, String msg) { 1775 if (nai.network == null) return false; 1776 final NetworkAgentInfo officialNai; 1777 synchronized (mNetworkForNetId) { 1778 officialNai = mNetworkForNetId.get(nai.network.netId); 1779 } 1780 if (officialNai != null && officialNai.equals(nai)) return true; 1781 if (officialNai != null || VDBG) { 1782 loge(msg + " - isLiveNetworkAgent found mismatched netId: " + officialNai + 1783 " - " + nai); 1784 } 1785 return false; 1786 } 1787 1788 private boolean isRequest(NetworkRequest request) { 1789 return mNetworkRequests.get(request).isRequest; 1790 } 1791 1792 // must be stateless - things change under us. 1793 private class NetworkStateTrackerHandler extends Handler { 1794 public NetworkStateTrackerHandler(Looper looper) { 1795 super(looper); 1796 } 1797 1798 @Override 1799 public void handleMessage(Message msg) { 1800 NetworkInfo info; 1801 switch (msg.what) { 1802 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 1803 handleAsyncChannelHalfConnect(msg); 1804 break; 1805 } 1806 case AsyncChannel.CMD_CHANNEL_DISCONNECT: { 1807 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1808 if (nai != null) nai.asyncChannel.disconnect(); 1809 break; 1810 } 1811 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 1812 handleAsyncChannelDisconnected(msg); 1813 break; 1814 } 1815 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { 1816 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1817 if (nai == null) { 1818 loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); 1819 } else { 1820 updateCapabilities(nai, (NetworkCapabilities)msg.obj); 1821 } 1822 break; 1823 } 1824 case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { 1825 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1826 if (nai == null) { 1827 loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); 1828 } else { 1829 if (VDBG) { 1830 log("Update of LinkProperties for " + nai.name() + 1831 "; created=" + nai.created); 1832 } 1833 LinkProperties oldLp = nai.linkProperties; 1834 synchronized (nai) { 1835 nai.linkProperties = (LinkProperties)msg.obj; 1836 } 1837 if (nai.created) updateLinkProperties(nai, oldLp); 1838 } 1839 break; 1840 } 1841 case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { 1842 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1843 if (nai == null) { 1844 loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); 1845 break; 1846 } 1847 info = (NetworkInfo) msg.obj; 1848 updateNetworkInfo(nai, info); 1849 break; 1850 } 1851 case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { 1852 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1853 if (nai == null) { 1854 loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); 1855 break; 1856 } 1857 Integer score = (Integer) msg.obj; 1858 if (score != null) updateNetworkScore(nai, score.intValue()); 1859 break; 1860 } 1861 case NetworkAgent.EVENT_UID_RANGES_ADDED: { 1862 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1863 if (nai == null) { 1864 loge("EVENT_UID_RANGES_ADDED from unknown NetworkAgent"); 1865 break; 1866 } 1867 try { 1868 mNetd.addVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1869 } catch (Exception e) { 1870 // Never crash! 1871 loge("Exception in addVpnUidRanges: " + e); 1872 } 1873 break; 1874 } 1875 case NetworkAgent.EVENT_UID_RANGES_REMOVED: { 1876 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1877 if (nai == null) { 1878 loge("EVENT_UID_RANGES_REMOVED from unknown NetworkAgent"); 1879 break; 1880 } 1881 try { 1882 mNetd.removeVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1883 } catch (Exception e) { 1884 // Never crash! 1885 loge("Exception in removeVpnUidRanges: " + e); 1886 } 1887 break; 1888 } 1889 case NetworkAgent.EVENT_SET_EXPLICITLY_SELECTED: { 1890 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1891 if (nai == null) { 1892 loge("EVENT_SET_EXPLICITLY_SELECTED from unknown NetworkAgent"); 1893 break; 1894 } 1895 if (nai.created && !nai.networkMisc.explicitlySelected) { 1896 loge("ERROR: created network explicitly selected."); 1897 } 1898 nai.networkMisc.explicitlySelected = true; 1899 break; 1900 } 1901 case NetworkMonitor.EVENT_NETWORK_TESTED: { 1902 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1903 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_VALIDATED")) { 1904 boolean valid = (msg.arg1 == NetworkMonitor.NETWORK_TEST_RESULT_VALID); 1905 if (valid) { 1906 if (DBG) log("Validated " + nai.name()); 1907 final boolean previouslyValidated = nai.validated; 1908 final int previousScore = nai.getCurrentScore(); 1909 nai.validated = true; 1910 rematchNetworkAndRequests(nai, !previouslyValidated); 1911 // If score has changed, rebroadcast to NetworkFactories. b/17726566 1912 if (nai.getCurrentScore() != previousScore) { 1913 sendUpdatedScoreToFactories(nai); 1914 } 1915 } 1916 updateInetCondition(nai, valid); 1917 // Let the NetworkAgent know the state of its network 1918 nai.asyncChannel.sendMessage( 1919 android.net.NetworkAgent.CMD_REPORT_NETWORK_STATUS, 1920 (valid ? NetworkAgent.VALID_NETWORK : NetworkAgent.INVALID_NETWORK), 1921 0, null); 1922 } 1923 break; 1924 } 1925 case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { 1926 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1927 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_LINGER_COMPLETE")) { 1928 handleLingerComplete(nai); 1929 } 1930 break; 1931 } 1932 case NetworkMonitor.EVENT_PROVISIONING_NOTIFICATION: { 1933 if (msg.arg1 == 0) { 1934 setProvNotificationVisibleIntent(false, msg.arg2, 0, null, null); 1935 } else { 1936 NetworkAgentInfo nai = null; 1937 synchronized (mNetworkForNetId) { 1938 nai = mNetworkForNetId.get(msg.arg2); 1939 } 1940 if (nai == null) { 1941 loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); 1942 break; 1943 } 1944 setProvNotificationVisibleIntent(true, msg.arg2, nai.networkInfo.getType(), 1945 nai.networkInfo.getExtraInfo(), (PendingIntent)msg.obj); 1946 } 1947 break; 1948 } 1949 case NetworkStateTracker.EVENT_STATE_CHANGED: { 1950 info = (NetworkInfo) msg.obj; 1951 NetworkInfo.State state = info.getState(); 1952 1953 if (VDBG || (state == NetworkInfo.State.CONNECTED) || 1954 (state == NetworkInfo.State.DISCONNECTED) || 1955 (state == NetworkInfo.State.SUSPENDED)) { 1956 log("ConnectivityChange for " + 1957 info.getTypeName() + ": " + 1958 state + "/" + info.getDetailedState()); 1959 } 1960 1961 EventLogTags.writeConnectivityStateChanged( 1962 info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); 1963 1964 if (info.isConnectedToProvisioningNetwork()) { 1965 /** 1966 * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING 1967 * for now its an in between network, its a network that 1968 * is actually a default network but we don't want it to be 1969 * announced as such to keep background applications from 1970 * trying to use it. It turns out that some still try so we 1971 * take the additional step of clearing any default routes 1972 * to the link that may have incorrectly setup by the lower 1973 * levels. 1974 */ 1975 LinkProperties lp = getLinkPropertiesForTypeInternal(info.getType()); 1976 if (DBG) { 1977 log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); 1978 } 1979 1980 // Clear any default routes setup by the radio so 1981 // any activity by applications trying to use this 1982 // connection will fail until the provisioning network 1983 // is enabled. 1984 /* 1985 for (RouteInfo r : lp.getRoutes()) { 1986 removeRoute(lp, r, TO_DEFAULT_TABLE, 1987 mNetTrackers[info.getType()].getNetwork().netId); 1988 } 1989 */ 1990 } else if (state == NetworkInfo.State.DISCONNECTED) { 1991 } else if (state == NetworkInfo.State.SUSPENDED) { 1992 } else if (state == NetworkInfo.State.CONNECTED) { 1993 // handleConnect(info); 1994 } 1995 if (mLockdownTracker != null) { 1996 mLockdownTracker.onNetworkInfoChanged(info); 1997 } 1998 break; 1999 } 2000 case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { 2001 info = (NetworkInfo) msg.obj; 2002 // TODO: Temporary allowing network configuration 2003 // change not resetting sockets. 2004 // @see bug/4455071 2005 /* 2006 handleConnectivityChange(info.getType(), mCurrentLinkProperties[info.getType()], 2007 false); 2008 */ 2009 break; 2010 } 2011 } 2012 } 2013 } 2014 2015 private void handleAsyncChannelHalfConnect(Message msg) { 2016 AsyncChannel ac = (AsyncChannel) msg.obj; 2017 if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { 2018 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2019 if (VDBG) log("NetworkFactory connected"); 2020 // A network factory has connected. Send it all current NetworkRequests. 2021 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 2022 if (nri.isRequest == false) continue; 2023 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2024 ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, 2025 (nai != null ? nai.getCurrentScore() : 0), 0, nri.request); 2026 } 2027 } else { 2028 loge("Error connecting NetworkFactory"); 2029 mNetworkFactoryInfos.remove(msg.obj); 2030 } 2031 } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { 2032 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2033 if (VDBG) log("NetworkAgent connected"); 2034 // A network agent has requested a connection. Establish the connection. 2035 mNetworkAgentInfos.get(msg.replyTo).asyncChannel. 2036 sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 2037 } else { 2038 loge("Error connecting NetworkAgent"); 2039 NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); 2040 if (nai != null) { 2041 synchronized (mNetworkForNetId) { 2042 mNetworkForNetId.remove(nai.network.netId); 2043 } 2044 // Just in case. 2045 mLegacyTypeTracker.remove(nai); 2046 } 2047 } 2048 } 2049 } 2050 private void handleAsyncChannelDisconnected(Message msg) { 2051 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 2052 if (nai != null) { 2053 if (DBG) { 2054 log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); 2055 } 2056 // A network agent has disconnected. 2057 if (nai.created) { 2058 // Tell netd to clean up the configuration for this network 2059 // (routing rules, DNS, etc). 2060 try { 2061 mNetd.removeNetwork(nai.network.netId); 2062 } catch (Exception e) { 2063 loge("Exception removing network: " + e); 2064 } 2065 } 2066 // TODO - if we move the logic to the network agent (have them disconnect 2067 // because they lost all their requests or because their score isn't good) 2068 // then they would disconnect organically, report their new state and then 2069 // disconnect the channel. 2070 if (nai.networkInfo.isConnected()) { 2071 nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, 2072 null, null); 2073 } 2074 if (isDefaultNetwork(nai)) { 2075 mDefaultInetConditionPublished = 0; 2076 } 2077 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); 2078 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); 2079 mNetworkAgentInfos.remove(msg.replyTo); 2080 updateClat(null, nai.linkProperties, nai); 2081 mLegacyTypeTracker.remove(nai); 2082 synchronized (mNetworkForNetId) { 2083 mNetworkForNetId.remove(nai.network.netId); 2084 } 2085 // Since we've lost the network, go through all the requests that 2086 // it was satisfying and see if any other factory can satisfy them. 2087 // TODO: This logic may be better replaced with a call to rematchAllNetworksAndRequests 2088 final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); 2089 for (int i = 0; i < nai.networkRequests.size(); i++) { 2090 NetworkRequest request = nai.networkRequests.valueAt(i); 2091 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); 2092 if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { 2093 if (DBG) { 2094 log("Checking for replacement network to handle request " + request ); 2095 } 2096 mNetworkForRequestId.remove(request.requestId); 2097 sendUpdatedScoreToFactories(request, 0); 2098 NetworkAgentInfo alternative = null; 2099 for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { 2100 NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); 2101 if (existing.networkInfo.isConnected() && 2102 request.networkCapabilities.satisfiedByNetworkCapabilities( 2103 existing.networkCapabilities) && 2104 (alternative == null || 2105 alternative.getCurrentScore() < existing.getCurrentScore())) { 2106 alternative = existing; 2107 } 2108 } 2109 if (alternative != null) { 2110 if (DBG) log(" found replacement in " + alternative.name()); 2111 if (!toActivate.contains(alternative)) { 2112 toActivate.add(alternative); 2113 } 2114 } 2115 } 2116 } 2117 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 2118 removeDataActivityTracking(nai); 2119 mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; 2120 requestNetworkTransitionWakelock(nai.name()); 2121 } 2122 for (NetworkAgentInfo networkToActivate : toActivate) { 2123 networkToActivate.networkLingered.clear(); 2124 networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2125 rematchNetworkAndRequests(networkToActivate, false); 2126 } 2127 } 2128 } 2129 2130 private void handleRegisterNetworkRequest(Message msg) { 2131 final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); 2132 final NetworkCapabilities newCap = nri.request.networkCapabilities; 2133 int score = 0; 2134 2135 // Check for the best currently alive network that satisfies this request 2136 NetworkAgentInfo bestNetwork = null; 2137 for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { 2138 if (DBG) log("handleRegisterNetworkRequest checking " + network.name()); 2139 if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { 2140 if (DBG) log("apparently satisfied. currentScore=" + network.getCurrentScore()); 2141 if ((bestNetwork == null) || 2142 bestNetwork.getCurrentScore() < network.getCurrentScore()) { 2143 if (!nri.isRequest) { 2144 // Not setting bestNetwork here as a listening NetworkRequest may be 2145 // satisfied by multiple Networks. Instead the request is added to 2146 // each satisfying Network and notified about each. 2147 network.addRequest(nri.request); 2148 notifyNetworkCallback(network, nri); 2149 } else { 2150 bestNetwork = network; 2151 } 2152 } 2153 } 2154 } 2155 if (bestNetwork != null) { 2156 if (DBG) log("using " + bestNetwork.name()); 2157 if (bestNetwork.networkInfo.isConnected()) { 2158 // Cancel any lingering so the linger timeout doesn't teardown this network 2159 // even though we have a request for it. 2160 bestNetwork.networkLingered.clear(); 2161 bestNetwork.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2162 } 2163 // TODO: This logic may be better replaced with a call to rematchNetworkAndRequests 2164 bestNetwork.addRequest(nri.request); 2165 mNetworkForRequestId.put(nri.request.requestId, bestNetwork); 2166 notifyNetworkCallback(bestNetwork, nri); 2167 score = bestNetwork.getCurrentScore(); 2168 if (nri.request.legacyType != TYPE_NONE) { 2169 mLegacyTypeTracker.add(nri.request.legacyType, bestNetwork); 2170 } 2171 } 2172 mNetworkRequests.put(nri.request, nri); 2173 if (nri.isRequest) { 2174 if (DBG) log("sending new NetworkRequest to factories"); 2175 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2176 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 2177 0, nri.request); 2178 } 2179 } 2180 } 2181 2182 private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) { 2183 NetworkRequestInfo nri = mNetworkRequests.get(request); 2184 if (nri != null) { 2185 if (Process.SYSTEM_UID != callingUid && nri.mUid != callingUid) { 2186 if (DBG) log("Attempt to release unowned NetworkRequest " + request); 2187 return; 2188 } 2189 if (DBG) log("releasing NetworkRequest " + request); 2190 nri.unlinkDeathRecipient(); 2191 mNetworkRequests.remove(request); 2192 if (nri.isRequest) { 2193 // Find all networks that are satisfying this request and remove the request 2194 // from their request lists. 2195 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2196 if (nai.networkRequests.get(nri.request.requestId) != null) { 2197 nai.networkRequests.remove(nri.request.requestId); 2198 if (DBG) { 2199 log(" Removing from current network " + nai.name() + 2200 ", leaving " + nai.networkRequests.size() + 2201 " requests."); 2202 } 2203 // check if has any requests remaining and if not, 2204 // disconnect (unless it's a VPN). 2205 boolean keep = nai.isVPN(); 2206 for (int i = 0; i < nai.networkRequests.size() && !keep; i++) { 2207 NetworkRequest r = nai.networkRequests.valueAt(i); 2208 if (isRequest(r)) keep = true; 2209 } 2210 if (!keep) { 2211 if (DBG) log("no live requests for " + nai.name() + "; disconnecting"); 2212 nai.asyncChannel.disconnect(); 2213 } 2214 } 2215 } 2216 2217 // Maintain the illusion. When this request arrived, we might have preteneded 2218 // that a network connected to serve it, even though the network was already 2219 // connected. Now that this request has gone away, we might have to pretend 2220 // that the network disconnected. LegacyTypeTracker will generate that 2221 // phatom disconnect for this type. 2222 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2223 if (nai != null) { 2224 mNetworkForRequestId.remove(nri.request.requestId); 2225 if (nri.request.legacyType != TYPE_NONE) { 2226 mLegacyTypeTracker.remove(nri.request.legacyType, nai); 2227 } 2228 } 2229 2230 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2231 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 2232 nri.request); 2233 } 2234 } else { 2235 // listens don't have a singular affectedNetwork. Check all networks to see 2236 // if this listen request applies and remove it. 2237 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2238 nai.networkRequests.remove(nri.request.requestId); 2239 } 2240 } 2241 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 2242 } 2243 } 2244 2245 private class InternalHandler extends Handler { 2246 public InternalHandler(Looper looper) { 2247 super(looper); 2248 } 2249 2250 @Override 2251 public void handleMessage(Message msg) { 2252 NetworkInfo info; 2253 switch (msg.what) { 2254 case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: 2255 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 2256 String causedBy = null; 2257 synchronized (ConnectivityService.this) { 2258 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 2259 mNetTransitionWakeLock.isHeld()) { 2260 mNetTransitionWakeLock.release(); 2261 causedBy = mNetTransitionWakeLockCausedBy; 2262 } else { 2263 break; 2264 } 2265 } 2266 if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { 2267 log("Failed to find a new network - expiring NetTransition Wakelock"); 2268 } else { 2269 log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + 2270 " cleared because we found a replacement network"); 2271 } 2272 break; 2273 } 2274 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 2275 handleDeprecatedGlobalHttpProxy(); 2276 break; 2277 } 2278 case EVENT_SET_DEPENDENCY_MET: { 2279 boolean met = (msg.arg1 == ENABLED); 2280 handleSetDependencyMet(msg.arg2, met); 2281 break; 2282 } 2283 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 2284 Intent intent = (Intent)msg.obj; 2285 sendStickyBroadcast(intent); 2286 break; 2287 } 2288 case EVENT_SET_POLICY_DATA_ENABLE: { 2289 final int networkType = msg.arg1; 2290 final boolean enabled = msg.arg2 == ENABLED; 2291 handleSetPolicyDataEnable(networkType, enabled); 2292 break; 2293 } 2294 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 2295 int tag = mEnableFailFastMobileDataTag.get(); 2296 if (msg.arg1 == tag) { 2297 MobileDataStateTracker mobileDst = 2298 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2299 if (mobileDst != null) { 2300 mobileDst.setEnableFailFastMobileData(msg.arg2); 2301 } 2302 } else { 2303 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 2304 + " != tag:" + tag); 2305 } 2306 break; 2307 } 2308 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 2309 handleNetworkSamplingTimeout(); 2310 break; 2311 } 2312 case EVENT_PROXY_HAS_CHANGED: { 2313 handleApplyDefaultProxy((ProxyInfo)msg.obj); 2314 break; 2315 } 2316 case EVENT_REGISTER_NETWORK_FACTORY: { 2317 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 2318 break; 2319 } 2320 case EVENT_UNREGISTER_NETWORK_FACTORY: { 2321 handleUnregisterNetworkFactory((Messenger)msg.obj); 2322 break; 2323 } 2324 case EVENT_REGISTER_NETWORK_AGENT: { 2325 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 2326 break; 2327 } 2328 case EVENT_REGISTER_NETWORK_REQUEST: 2329 case EVENT_REGISTER_NETWORK_LISTENER: { 2330 handleRegisterNetworkRequest(msg); 2331 break; 2332 } 2333 case EVENT_RELEASE_NETWORK_REQUEST: { 2334 handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); 2335 break; 2336 } 2337 case EVENT_SYSTEM_READY: { 2338 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2339 nai.networkMonitor.systemReady = true; 2340 } 2341 break; 2342 } 2343 } 2344 } 2345 } 2346 2347 // javadoc from interface 2348 public int tether(String iface) { 2349 ConnectivityManager.enforceTetherChangePermission(mContext); 2350 if (isTetheringSupported()) { 2351 return mTethering.tether(iface); 2352 } else { 2353 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2354 } 2355 } 2356 2357 // javadoc from interface 2358 public int untether(String iface) { 2359 ConnectivityManager.enforceTetherChangePermission(mContext); 2360 2361 if (isTetheringSupported()) { 2362 return mTethering.untether(iface); 2363 } else { 2364 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2365 } 2366 } 2367 2368 // javadoc from interface 2369 public int getLastTetherError(String iface) { 2370 enforceTetherAccessPermission(); 2371 2372 if (isTetheringSupported()) { 2373 return mTethering.getLastTetherError(iface); 2374 } else { 2375 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2376 } 2377 } 2378 2379 // TODO - proper iface API for selection by property, inspection, etc 2380 public String[] getTetherableUsbRegexs() { 2381 enforceTetherAccessPermission(); 2382 if (isTetheringSupported()) { 2383 return mTethering.getTetherableUsbRegexs(); 2384 } else { 2385 return new String[0]; 2386 } 2387 } 2388 2389 public String[] getTetherableWifiRegexs() { 2390 enforceTetherAccessPermission(); 2391 if (isTetheringSupported()) { 2392 return mTethering.getTetherableWifiRegexs(); 2393 } else { 2394 return new String[0]; 2395 } 2396 } 2397 2398 public String[] getTetherableBluetoothRegexs() { 2399 enforceTetherAccessPermission(); 2400 if (isTetheringSupported()) { 2401 return mTethering.getTetherableBluetoothRegexs(); 2402 } else { 2403 return new String[0]; 2404 } 2405 } 2406 2407 public int setUsbTethering(boolean enable) { 2408 ConnectivityManager.enforceTetherChangePermission(mContext); 2409 if (isTetheringSupported()) { 2410 return mTethering.setUsbTethering(enable); 2411 } else { 2412 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2413 } 2414 } 2415 2416 // TODO - move iface listing, queries, etc to new module 2417 // javadoc from interface 2418 public String[] getTetherableIfaces() { 2419 enforceTetherAccessPermission(); 2420 return mTethering.getTetherableIfaces(); 2421 } 2422 2423 public String[] getTetheredIfaces() { 2424 enforceTetherAccessPermission(); 2425 return mTethering.getTetheredIfaces(); 2426 } 2427 2428 public String[] getTetheringErroredIfaces() { 2429 enforceTetherAccessPermission(); 2430 return mTethering.getErroredIfaces(); 2431 } 2432 2433 public String[] getTetheredDhcpRanges() { 2434 enforceConnectivityInternalPermission(); 2435 return mTethering.getTetheredDhcpRanges(); 2436 } 2437 2438 // if ro.tether.denied = true we default to no tethering 2439 // gservices could set the secure setting to 1 though to enable it on a build where it 2440 // had previously been turned off. 2441 public boolean isTetheringSupported() { 2442 enforceTetherAccessPermission(); 2443 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 2444 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 2445 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0) 2446 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); 2447 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 2448 mTethering.getTetherableWifiRegexs().length != 0 || 2449 mTethering.getTetherableBluetoothRegexs().length != 0) && 2450 mTethering.getUpstreamIfaceTypes().length != 0); 2451 } 2452 2453 // Called when we lose the default network and have no replacement yet. 2454 // This will automatically be cleared after X seconds or a new default network 2455 // becomes CONNECTED, whichever happens first. The timer is started by the 2456 // first caller and not restarted by subsequent callers. 2457 private void requestNetworkTransitionWakelock(String forWhom) { 2458 int serialNum = 0; 2459 synchronized (this) { 2460 if (mNetTransitionWakeLock.isHeld()) return; 2461 serialNum = ++mNetTransitionWakeLockSerialNumber; 2462 mNetTransitionWakeLock.acquire(); 2463 mNetTransitionWakeLockCausedBy = forWhom; 2464 } 2465 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2466 EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), 2467 mNetTransitionWakeLockTimeout); 2468 return; 2469 } 2470 2471 // 100 percent is full good, 0 is full bad. 2472 public void reportInetCondition(int networkType, int percentage) { 2473 if (percentage > 50) return; // don't handle good network reports 2474 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 2475 if (nai != null) reportBadNetwork(nai.network); 2476 } 2477 2478 public void reportBadNetwork(Network network) { 2479 enforceAccessPermission(); 2480 enforceInternetPermission(); 2481 2482 if (network == null) return; 2483 2484 final int uid = Binder.getCallingUid(); 2485 NetworkAgentInfo nai = null; 2486 synchronized (mNetworkForNetId) { 2487 nai = mNetworkForNetId.get(network.netId); 2488 } 2489 if (nai == null) return; 2490 if (DBG) log("reportBadNetwork(" + nai.name() + ") by " + uid); 2491 synchronized (nai) { 2492 // Validating an uncreated network could result in a call to rematchNetworkAndRequests() 2493 // which isn't meant to work on uncreated networks. 2494 if (!nai.created) return; 2495 2496 if (isNetworkBlocked(nai, uid)) return; 2497 2498 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_FORCE_REEVALUATION, uid); 2499 } 2500 } 2501 2502 public ProxyInfo getProxy() { 2503 // this information is already available as a world read/writable jvm property 2504 // so this API change wouldn't have a benifit. It also breaks the passing 2505 // of proxy info to all the JVMs. 2506 // enforceAccessPermission(); 2507 synchronized (mProxyLock) { 2508 ProxyInfo ret = mGlobalProxy; 2509 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 2510 return ret; 2511 } 2512 } 2513 2514 public void setGlobalProxy(ProxyInfo proxyProperties) { 2515 enforceConnectivityInternalPermission(); 2516 2517 synchronized (mProxyLock) { 2518 if (proxyProperties == mGlobalProxy) return; 2519 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 2520 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 2521 2522 String host = ""; 2523 int port = 0; 2524 String exclList = ""; 2525 String pacFileUrl = ""; 2526 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 2527 (proxyProperties.getPacFileUrl() != null))) { 2528 if (!proxyProperties.isValid()) { 2529 if (DBG) 2530 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2531 return; 2532 } 2533 mGlobalProxy = new ProxyInfo(proxyProperties); 2534 host = mGlobalProxy.getHost(); 2535 port = mGlobalProxy.getPort(); 2536 exclList = mGlobalProxy.getExclusionListAsString(); 2537 if (proxyProperties.getPacFileUrl() != null) { 2538 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 2539 } 2540 } else { 2541 mGlobalProxy = null; 2542 } 2543 ContentResolver res = mContext.getContentResolver(); 2544 final long token = Binder.clearCallingIdentity(); 2545 try { 2546 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 2547 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 2548 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 2549 exclList); 2550 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 2551 } finally { 2552 Binder.restoreCallingIdentity(token); 2553 } 2554 } 2555 2556 if (mGlobalProxy == null) { 2557 proxyProperties = mDefaultProxy; 2558 } 2559 sendProxyBroadcast(proxyProperties); 2560 } 2561 2562 private void loadGlobalProxy() { 2563 ContentResolver res = mContext.getContentResolver(); 2564 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 2565 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 2566 String exclList = Settings.Global.getString(res, 2567 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 2568 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 2569 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 2570 ProxyInfo proxyProperties; 2571 if (!TextUtils.isEmpty(pacFileUrl)) { 2572 proxyProperties = new ProxyInfo(pacFileUrl); 2573 } else { 2574 proxyProperties = new ProxyInfo(host, port, exclList); 2575 } 2576 if (!proxyProperties.isValid()) { 2577 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2578 return; 2579 } 2580 2581 synchronized (mProxyLock) { 2582 mGlobalProxy = proxyProperties; 2583 } 2584 } 2585 } 2586 2587 public ProxyInfo getGlobalProxy() { 2588 // this information is already available as a world read/writable jvm property 2589 // so this API change wouldn't have a benifit. It also breaks the passing 2590 // of proxy info to all the JVMs. 2591 // enforceAccessPermission(); 2592 synchronized (mProxyLock) { 2593 return mGlobalProxy; 2594 } 2595 } 2596 2597 private void handleApplyDefaultProxy(ProxyInfo proxy) { 2598 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 2599 && (proxy.getPacFileUrl() == null)) { 2600 proxy = null; 2601 } 2602 synchronized (mProxyLock) { 2603 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 2604 if (mDefaultProxy == proxy) return; // catches repeated nulls 2605 if (proxy != null && !proxy.isValid()) { 2606 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 2607 return; 2608 } 2609 2610 // This call could be coming from the PacManager, containing the port of the local 2611 // proxy. If this new proxy matches the global proxy then copy this proxy to the 2612 // global (to get the correct local port), and send a broadcast. 2613 // TODO: Switch PacManager to have its own message to send back rather than 2614 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 2615 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 2616 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 2617 mGlobalProxy = proxy; 2618 sendProxyBroadcast(mGlobalProxy); 2619 return; 2620 } 2621 mDefaultProxy = proxy; 2622 2623 if (mGlobalProxy != null) return; 2624 if (!mDefaultProxyDisabled) { 2625 sendProxyBroadcast(proxy); 2626 } 2627 } 2628 } 2629 2630 private void handleDeprecatedGlobalHttpProxy() { 2631 String proxy = Settings.Global.getString(mContext.getContentResolver(), 2632 Settings.Global.HTTP_PROXY); 2633 if (!TextUtils.isEmpty(proxy)) { 2634 String data[] = proxy.split(":"); 2635 if (data.length == 0) { 2636 return; 2637 } 2638 2639 String proxyHost = data[0]; 2640 int proxyPort = 8080; 2641 if (data.length > 1) { 2642 try { 2643 proxyPort = Integer.parseInt(data[1]); 2644 } catch (NumberFormatException e) { 2645 return; 2646 } 2647 } 2648 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 2649 setGlobalProxy(p); 2650 } 2651 } 2652 2653 private void sendProxyBroadcast(ProxyInfo proxy) { 2654 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 2655 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 2656 if (DBG) log("sending Proxy Broadcast for " + proxy); 2657 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 2658 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 2659 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2660 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 2661 final long ident = Binder.clearCallingIdentity(); 2662 try { 2663 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2664 } finally { 2665 Binder.restoreCallingIdentity(ident); 2666 } 2667 } 2668 2669 private static class SettingsObserver extends ContentObserver { 2670 private int mWhat; 2671 private Handler mHandler; 2672 SettingsObserver(Handler handler, int what) { 2673 super(handler); 2674 mHandler = handler; 2675 mWhat = what; 2676 } 2677 2678 void observe(Context context) { 2679 ContentResolver resolver = context.getContentResolver(); 2680 resolver.registerContentObserver(Settings.Global.getUriFor( 2681 Settings.Global.HTTP_PROXY), false, this); 2682 } 2683 2684 @Override 2685 public void onChange(boolean selfChange) { 2686 mHandler.obtainMessage(mWhat).sendToTarget(); 2687 } 2688 } 2689 2690 private static void log(String s) { 2691 Slog.d(TAG, s); 2692 } 2693 2694 private static void loge(String s) { 2695 Slog.e(TAG, s); 2696 } 2697 2698 int convertFeatureToNetworkType(int networkType, String feature) { 2699 int usedNetworkType = networkType; 2700 2701 if(networkType == ConnectivityManager.TYPE_MOBILE) { 2702 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 2703 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 2704 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 2705 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 2706 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 2707 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 2708 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 2709 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 2710 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 2711 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 2712 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 2713 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 2714 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 2715 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 2716 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 2717 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { 2718 usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; 2719 } else { 2720 Slog.e(TAG, "Can't match any mobile netTracker!"); 2721 } 2722 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 2723 if (TextUtils.equals(feature, "p2p")) { 2724 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 2725 } else { 2726 Slog.e(TAG, "Can't match any wifi netTracker!"); 2727 } 2728 } else { 2729 Slog.e(TAG, "Unexpected network type"); 2730 } 2731 return usedNetworkType; 2732 } 2733 2734 private static <T> T checkNotNull(T value, String message) { 2735 if (value == null) { 2736 throw new NullPointerException(message); 2737 } 2738 return value; 2739 } 2740 2741 /** 2742 * Prepare for a VPN application. This method is used by VpnDialogs 2743 * and not available in ConnectivityManager. Permissions are checked 2744 * in Vpn class. 2745 * @hide 2746 */ 2747 @Override 2748 public boolean prepareVpn(String oldPackage, String newPackage) { 2749 throwIfLockdownEnabled(); 2750 int user = UserHandle.getUserId(Binder.getCallingUid()); 2751 synchronized(mVpns) { 2752 return mVpns.get(user).prepare(oldPackage, newPackage); 2753 } 2754 } 2755 2756 /** 2757 * Set whether the current VPN package has the ability to launch VPNs without 2758 * user intervention. This method is used by system UIs and not available 2759 * in ConnectivityManager. Permissions are checked in Vpn class. 2760 * @hide 2761 */ 2762 @Override 2763 public void setVpnPackageAuthorization(boolean authorized) { 2764 int user = UserHandle.getUserId(Binder.getCallingUid()); 2765 synchronized(mVpns) { 2766 mVpns.get(user).setPackageAuthorization(authorized); 2767 } 2768 } 2769 2770 /** 2771 * Configure a TUN interface and return its file descriptor. Parameters 2772 * are encoded and opaque to this class. This method is used by VpnBuilder 2773 * and not available in ConnectivityManager. Permissions are checked in 2774 * Vpn class. 2775 * @hide 2776 */ 2777 @Override 2778 public ParcelFileDescriptor establishVpn(VpnConfig config) { 2779 throwIfLockdownEnabled(); 2780 int user = UserHandle.getUserId(Binder.getCallingUid()); 2781 synchronized(mVpns) { 2782 return mVpns.get(user).establish(config); 2783 } 2784 } 2785 2786 /** 2787 * Start legacy VPN, controlling native daemons as needed. Creates a 2788 * secondary thread to perform connection work, returning quickly. 2789 */ 2790 @Override 2791 public void startLegacyVpn(VpnProfile profile) { 2792 throwIfLockdownEnabled(); 2793 final LinkProperties egress = getActiveLinkProperties(); 2794 if (egress == null) { 2795 throw new IllegalStateException("Missing active network connection"); 2796 } 2797 int user = UserHandle.getUserId(Binder.getCallingUid()); 2798 synchronized(mVpns) { 2799 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 2800 } 2801 } 2802 2803 /** 2804 * Return the information of the ongoing legacy VPN. This method is used 2805 * by VpnSettings and not available in ConnectivityManager. Permissions 2806 * are checked in Vpn class. 2807 * @hide 2808 */ 2809 @Override 2810 public LegacyVpnInfo getLegacyVpnInfo() { 2811 throwIfLockdownEnabled(); 2812 int user = UserHandle.getUserId(Binder.getCallingUid()); 2813 synchronized(mVpns) { 2814 return mVpns.get(user).getLegacyVpnInfo(); 2815 } 2816 } 2817 2818 /** 2819 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 2820 * not available in ConnectivityManager. 2821 * Permissions are checked in Vpn class. 2822 * @hide 2823 */ 2824 @Override 2825 public VpnConfig getVpnConfig() { 2826 int user = UserHandle.getUserId(Binder.getCallingUid()); 2827 synchronized(mVpns) { 2828 return mVpns.get(user).getVpnConfig(); 2829 } 2830 } 2831 2832 @Override 2833 public boolean updateLockdownVpn() { 2834 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 2835 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 2836 return false; 2837 } 2838 2839 // Tear down existing lockdown if profile was removed 2840 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 2841 if (mLockdownEnabled) { 2842 if (!mKeyStore.isUnlocked()) { 2843 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 2844 return false; 2845 } 2846 2847 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 2848 final VpnProfile profile = VpnProfile.decode( 2849 profileName, mKeyStore.get(Credentials.VPN + profileName)); 2850 int user = UserHandle.getUserId(Binder.getCallingUid()); 2851 synchronized(mVpns) { 2852 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 2853 profile)); 2854 } 2855 } else { 2856 setLockdownTracker(null); 2857 } 2858 2859 return true; 2860 } 2861 2862 /** 2863 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 2864 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 2865 */ 2866 private void setLockdownTracker(LockdownVpnTracker tracker) { 2867 // Shutdown any existing tracker 2868 final LockdownVpnTracker existing = mLockdownTracker; 2869 mLockdownTracker = null; 2870 if (existing != null) { 2871 existing.shutdown(); 2872 } 2873 2874 try { 2875 if (tracker != null) { 2876 mNetd.setFirewallEnabled(true); 2877 mNetd.setFirewallInterfaceRule("lo", true); 2878 mLockdownTracker = tracker; 2879 mLockdownTracker.init(); 2880 } else { 2881 mNetd.setFirewallEnabled(false); 2882 } 2883 } catch (RemoteException e) { 2884 // ignored; NMS lives inside system_server 2885 } 2886 } 2887 2888 private void throwIfLockdownEnabled() { 2889 if (mLockdownEnabled) { 2890 throw new IllegalStateException("Unavailable in lockdown mode"); 2891 } 2892 } 2893 2894 public void supplyMessenger(int networkType, Messenger messenger) { 2895 enforceConnectivityInternalPermission(); 2896 2897 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 2898 mNetTrackers[networkType].supplyMessenger(messenger); 2899 } 2900 } 2901 2902 public int findConnectionTypeForIface(String iface) { 2903 enforceConnectivityInternalPermission(); 2904 2905 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 2906 2907 synchronized(mNetworkForNetId) { 2908 for (int i = 0; i < mNetworkForNetId.size(); i++) { 2909 NetworkAgentInfo nai = mNetworkForNetId.valueAt(i); 2910 LinkProperties lp = nai.linkProperties; 2911 if (lp != null && iface.equals(lp.getInterfaceName()) && nai.networkInfo != null) { 2912 return nai.networkInfo.getType(); 2913 } 2914 } 2915 } 2916 return ConnectivityManager.TYPE_NONE; 2917 } 2918 2919 /** 2920 * Have mobile data fail fast if enabled. 2921 * 2922 * @param enabled DctConstants.ENABLED/DISABLED 2923 */ 2924 private void setEnableFailFastMobileData(int enabled) { 2925 int tag; 2926 2927 if (enabled == DctConstants.ENABLED) { 2928 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 2929 } else { 2930 tag = mEnableFailFastMobileDataTag.get(); 2931 } 2932 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 2933 enabled)); 2934 } 2935 2936 @Override 2937 public int checkMobileProvisioning(int suggestedTimeOutMs) { 2938 // TODO: Remove? Any reason to trigger a provisioning check? 2939 return -1; 2940 } 2941 2942 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 2943 private volatile boolean mIsNotificationVisible = false; 2944 2945 private void setProvNotificationVisible(boolean visible, int networkType, String action) { 2946 if (DBG) { 2947 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 2948 + " action=" + action); 2949 } 2950 Intent intent = new Intent(action); 2951 PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 2952 // Concatenate the range of types onto the range of NetIDs. 2953 int id = MAX_NET_ID + 1 + (networkType - ConnectivityManager.TYPE_NONE); 2954 setProvNotificationVisibleIntent(visible, id, networkType, null, pendingIntent); 2955 } 2956 2957 /** 2958 * Show or hide network provisioning notificaitons. 2959 * 2960 * @param id an identifier that uniquely identifies this notification. This must match 2961 * between show and hide calls. We use the NetID value but for legacy callers 2962 * we concatenate the range of types with the range of NetIDs. 2963 */ 2964 private void setProvNotificationVisibleIntent(boolean visible, int id, int networkType, 2965 String extraInfo, PendingIntent intent) { 2966 if (DBG) { 2967 log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + 2968 networkType + " extraInfo=" + extraInfo); 2969 } 2970 2971 Resources r = Resources.getSystem(); 2972 NotificationManager notificationManager = (NotificationManager) mContext 2973 .getSystemService(Context.NOTIFICATION_SERVICE); 2974 2975 if (visible) { 2976 CharSequence title; 2977 CharSequence details; 2978 int icon; 2979 Notification notification = new Notification(); 2980 switch (networkType) { 2981 case ConnectivityManager.TYPE_WIFI: 2982 title = r.getString(R.string.wifi_available_sign_in, 0); 2983 details = r.getString(R.string.network_available_sign_in_detailed, 2984 extraInfo); 2985 icon = R.drawable.stat_notify_wifi_in_range; 2986 break; 2987 case ConnectivityManager.TYPE_MOBILE: 2988 case ConnectivityManager.TYPE_MOBILE_HIPRI: 2989 title = r.getString(R.string.network_available_sign_in, 0); 2990 // TODO: Change this to pull from NetworkInfo once a printable 2991 // name has been added to it 2992 details = mTelephonyManager.getNetworkOperatorName(); 2993 icon = R.drawable.stat_notify_rssi_in_range; 2994 break; 2995 default: 2996 title = r.getString(R.string.network_available_sign_in, 0); 2997 details = r.getString(R.string.network_available_sign_in_detailed, 2998 extraInfo); 2999 icon = R.drawable.stat_notify_rssi_in_range; 3000 break; 3001 } 3002 3003 notification.when = 0; 3004 notification.icon = icon; 3005 notification.flags = Notification.FLAG_AUTO_CANCEL; 3006 notification.tickerText = title; 3007 notification.color = mContext.getResources().getColor( 3008 com.android.internal.R.color.system_notification_accent_color); 3009 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 3010 notification.contentIntent = intent; 3011 3012 try { 3013 notificationManager.notify(NOTIFICATION_ID, id, notification); 3014 } catch (NullPointerException npe) { 3015 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 3016 npe.printStackTrace(); 3017 } 3018 } else { 3019 try { 3020 notificationManager.cancel(NOTIFICATION_ID, id); 3021 } catch (NullPointerException npe) { 3022 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 3023 npe.printStackTrace(); 3024 } 3025 } 3026 mIsNotificationVisible = visible; 3027 } 3028 3029 /** Location to an updatable file listing carrier provisioning urls. 3030 * An example: 3031 * 3032 * <?xml version="1.0" encoding="utf-8"?> 3033 * <provisioningUrls> 3034 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 3035 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 3036 * </provisioningUrls> 3037 */ 3038 private static final String PROVISIONING_URL_PATH = 3039 "/data/misc/radio/provisioning_urls.xml"; 3040 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 3041 3042 /** XML tag for root element. */ 3043 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 3044 /** XML tag for individual url */ 3045 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 3046 /** XML tag for redirected url */ 3047 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 3048 /** XML attribute for mcc */ 3049 private static final String ATTR_MCC = "mcc"; 3050 /** XML attribute for mnc */ 3051 private static final String ATTR_MNC = "mnc"; 3052 3053 private static final int REDIRECTED_PROVISIONING = 1; 3054 private static final int PROVISIONING = 2; 3055 3056 private String getProvisioningUrlBaseFromFile(int type) { 3057 FileReader fileReader = null; 3058 XmlPullParser parser = null; 3059 Configuration config = mContext.getResources().getConfiguration(); 3060 String tagType; 3061 3062 switch (type) { 3063 case PROVISIONING: 3064 tagType = TAG_PROVISIONING_URL; 3065 break; 3066 case REDIRECTED_PROVISIONING: 3067 tagType = TAG_REDIRECTED_URL; 3068 break; 3069 default: 3070 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 3071 type); 3072 } 3073 3074 try { 3075 fileReader = new FileReader(mProvisioningUrlFile); 3076 parser = Xml.newPullParser(); 3077 parser.setInput(fileReader); 3078 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 3079 3080 while (true) { 3081 XmlUtils.nextElement(parser); 3082 3083 String element = parser.getName(); 3084 if (element == null) break; 3085 3086 if (element.equals(tagType)) { 3087 String mcc = parser.getAttributeValue(null, ATTR_MCC); 3088 try { 3089 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 3090 String mnc = parser.getAttributeValue(null, ATTR_MNC); 3091 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 3092 parser.next(); 3093 if (parser.getEventType() == XmlPullParser.TEXT) { 3094 return parser.getText(); 3095 } 3096 } 3097 } 3098 } catch (NumberFormatException e) { 3099 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 3100 } 3101 } 3102 } 3103 return null; 3104 } catch (FileNotFoundException e) { 3105 loge("Carrier Provisioning Urls file not found"); 3106 } catch (XmlPullParserException e) { 3107 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 3108 } catch (IOException e) { 3109 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 3110 } finally { 3111 if (fileReader != null) { 3112 try { 3113 fileReader.close(); 3114 } catch (IOException e) {} 3115 } 3116 } 3117 return null; 3118 } 3119 3120 @Override 3121 public String getMobileRedirectedProvisioningUrl() { 3122 enforceConnectivityInternalPermission(); 3123 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 3124 if (TextUtils.isEmpty(url)) { 3125 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 3126 } 3127 return url; 3128 } 3129 3130 @Override 3131 public String getMobileProvisioningUrl() { 3132 enforceConnectivityInternalPermission(); 3133 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 3134 if (TextUtils.isEmpty(url)) { 3135 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 3136 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 3137 } else { 3138 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 3139 } 3140 // populate the iccid, imei and phone number in the provisioning url. 3141 if (!TextUtils.isEmpty(url)) { 3142 String phoneNumber = mTelephonyManager.getLine1Number(); 3143 if (TextUtils.isEmpty(phoneNumber)) { 3144 phoneNumber = "0000000000"; 3145 } 3146 url = String.format(url, 3147 mTelephonyManager.getSimSerialNumber() /* ICCID */, 3148 mTelephonyManager.getDeviceId() /* IMEI */, 3149 phoneNumber /* Phone numer */); 3150 } 3151 3152 return url; 3153 } 3154 3155 @Override 3156 public void setProvisioningNotificationVisible(boolean visible, int networkType, 3157 String action) { 3158 enforceConnectivityInternalPermission(); 3159 final long ident = Binder.clearCallingIdentity(); 3160 try { 3161 setProvNotificationVisible(visible, networkType, action); 3162 } finally { 3163 Binder.restoreCallingIdentity(ident); 3164 } 3165 } 3166 3167 @Override 3168 public void setAirplaneMode(boolean enable) { 3169 enforceConnectivityInternalPermission(); 3170 final long ident = Binder.clearCallingIdentity(); 3171 try { 3172 final ContentResolver cr = mContext.getContentResolver(); 3173 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 3174 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 3175 intent.putExtra("state", enable); 3176 mContext.sendBroadcast(intent); 3177 } finally { 3178 Binder.restoreCallingIdentity(ident); 3179 } 3180 } 3181 3182 private void onUserStart(int userId) { 3183 synchronized(mVpns) { 3184 Vpn userVpn = mVpns.get(userId); 3185 if (userVpn != null) { 3186 loge("Starting user already has a VPN"); 3187 return; 3188 } 3189 userVpn = new Vpn(mHandler.getLooper(), mContext, mNetd, this, userId); 3190 mVpns.put(userId, userVpn); 3191 } 3192 } 3193 3194 private void onUserStop(int userId) { 3195 synchronized(mVpns) { 3196 Vpn userVpn = mVpns.get(userId); 3197 if (userVpn == null) { 3198 loge("Stopping user has no VPN"); 3199 return; 3200 } 3201 mVpns.delete(userId); 3202 } 3203 } 3204 3205 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 3206 @Override 3207 public void onReceive(Context context, Intent intent) { 3208 final String action = intent.getAction(); 3209 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3210 if (userId == UserHandle.USER_NULL) return; 3211 3212 if (Intent.ACTION_USER_STARTING.equals(action)) { 3213 onUserStart(userId); 3214 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 3215 onUserStop(userId); 3216 } 3217 } 3218 }; 3219 3220 @Override 3221 public LinkQualityInfo getLinkQualityInfo(int networkType) { 3222 enforceAccessPermission(); 3223 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 3224 return mNetTrackers[networkType].getLinkQualityInfo(); 3225 } else { 3226 return null; 3227 } 3228 } 3229 3230 @Override 3231 public LinkQualityInfo getActiveLinkQualityInfo() { 3232 enforceAccessPermission(); 3233 if (isNetworkTypeValid(mActiveDefaultNetwork) && 3234 mNetTrackers[mActiveDefaultNetwork] != null) { 3235 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 3236 } else { 3237 return null; 3238 } 3239 } 3240 3241 @Override 3242 public LinkQualityInfo[] getAllLinkQualityInfo() { 3243 enforceAccessPermission(); 3244 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 3245 for (NetworkStateTracker tracker : mNetTrackers) { 3246 if (tracker != null) { 3247 LinkQualityInfo li = tracker.getLinkQualityInfo(); 3248 if (li != null) { 3249 result.add(li); 3250 } 3251 } 3252 } 3253 3254 return result.toArray(new LinkQualityInfo[result.size()]); 3255 } 3256 3257 /* Infrastructure for network sampling */ 3258 3259 private void handleNetworkSamplingTimeout() { 3260 3261 if (SAMPLE_DBG) log("Sampling interval elapsed, updating statistics .."); 3262 3263 // initialize list of interfaces .. 3264 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 3265 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 3266 for (NetworkStateTracker tracker : mNetTrackers) { 3267 if (tracker != null) { 3268 String ifaceName = tracker.getNetworkInterfaceName(); 3269 if (ifaceName != null) { 3270 mapIfaceToSample.put(ifaceName, null); 3271 } 3272 } 3273 } 3274 3275 // Read samples for all interfaces 3276 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 3277 3278 // process samples for all networks 3279 for (NetworkStateTracker tracker : mNetTrackers) { 3280 if (tracker != null) { 3281 String ifaceName = tracker.getNetworkInterfaceName(); 3282 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 3283 if (ss != null) { 3284 // end the previous sampling cycle 3285 tracker.stopSampling(ss); 3286 // start a new sampling cycle .. 3287 tracker.startSampling(ss); 3288 } 3289 } 3290 } 3291 3292 if (SAMPLE_DBG) log("Done."); 3293 3294 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 3295 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 3296 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 3297 3298 if (SAMPLE_DBG) { 3299 log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 3300 } 3301 3302 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 3303 } 3304 3305 /** 3306 * Sets a network sampling alarm. 3307 */ 3308 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 3309 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 3310 int alarmType; 3311 if (Resources.getSystem().getBoolean( 3312 R.bool.config_networkSamplingWakesDevice)) { 3313 alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP; 3314 } else { 3315 alarmType = AlarmManager.ELAPSED_REALTIME; 3316 } 3317 mAlarmManager.set(alarmType, wakeupTime, intent); 3318 } 3319 3320 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 3321 new HashMap<Messenger, NetworkFactoryInfo>(); 3322 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 3323 new HashMap<NetworkRequest, NetworkRequestInfo>(); 3324 3325 private static class NetworkFactoryInfo { 3326 public final String name; 3327 public final Messenger messenger; 3328 public final AsyncChannel asyncChannel; 3329 3330 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 3331 this.name = name; 3332 this.messenger = messenger; 3333 this.asyncChannel = asyncChannel; 3334 } 3335 } 3336 3337 /** 3338 * Tracks info about the requester. 3339 * Also used to notice when the calling process dies so we can self-expire 3340 */ 3341 private class NetworkRequestInfo implements IBinder.DeathRecipient { 3342 static final boolean REQUEST = true; 3343 static final boolean LISTEN = false; 3344 3345 final NetworkRequest request; 3346 IBinder mBinder; 3347 final int mPid; 3348 final int mUid; 3349 final Messenger messenger; 3350 final boolean isRequest; 3351 3352 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 3353 super(); 3354 messenger = m; 3355 request = r; 3356 mBinder = binder; 3357 mPid = getCallingPid(); 3358 mUid = getCallingUid(); 3359 this.isRequest = isRequest; 3360 3361 try { 3362 mBinder.linkToDeath(this, 0); 3363 } catch (RemoteException e) { 3364 binderDied(); 3365 } 3366 } 3367 3368 void unlinkDeathRecipient() { 3369 mBinder.unlinkToDeath(this, 0); 3370 } 3371 3372 public void binderDied() { 3373 log("ConnectivityService NetworkRequestInfo binderDied(" + 3374 request + ", " + mBinder + ")"); 3375 releaseNetworkRequest(request); 3376 } 3377 3378 public String toString() { 3379 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 3380 mPid + " for " + request; 3381 } 3382 } 3383 3384 @Override 3385 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 3386 Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { 3387 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 3388 == false) { 3389 enforceConnectivityInternalPermission(); 3390 } else { 3391 enforceChangePermission(); 3392 } 3393 3394 networkCapabilities = new NetworkCapabilities(networkCapabilities); 3395 3396 // if UID is restricted, don't allow them to bring up metered APNs 3397 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED) 3398 == false) { 3399 final int uidRules; 3400 final int uid = Binder.getCallingUid(); 3401 synchronized(mRulesLock) { 3402 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 3403 } 3404 if ((uidRules & RULE_REJECT_METERED) != 0) { 3405 // we could silently fail or we can filter the available nets to only give 3406 // them those they have access to. Chose the more useful 3407 networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 3408 } 3409 } 3410 3411 if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { 3412 throw new IllegalArgumentException("Bad timeout specified"); 3413 } 3414 NetworkRequest networkRequest = new NetworkRequest(networkCapabilities, legacyType, 3415 nextNetworkRequestId()); 3416 if (DBG) log("requestNetwork for " + networkRequest); 3417 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 3418 NetworkRequestInfo.REQUEST); 3419 3420 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 3421 if (timeoutMs > 0) { 3422 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 3423 nri), timeoutMs); 3424 } 3425 return networkRequest; 3426 } 3427 3428 @Override 3429 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 3430 PendingIntent operation) { 3431 // TODO 3432 return null; 3433 } 3434 3435 @Override 3436 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 3437 Messenger messenger, IBinder binder) { 3438 enforceAccessPermission(); 3439 3440 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 3441 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 3442 if (DBG) log("listenForNetwork for " + networkRequest); 3443 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 3444 NetworkRequestInfo.LISTEN); 3445 3446 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 3447 return networkRequest; 3448 } 3449 3450 @Override 3451 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 3452 PendingIntent operation) { 3453 } 3454 3455 @Override 3456 public void releaseNetworkRequest(NetworkRequest networkRequest) { 3457 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), 3458 0, networkRequest)); 3459 } 3460 3461 @Override 3462 public void registerNetworkFactory(Messenger messenger, String name) { 3463 enforceConnectivityInternalPermission(); 3464 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 3465 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 3466 } 3467 3468 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 3469 if (DBG) log("Got NetworkFactory Messenger for " + nfi.name); 3470 mNetworkFactoryInfos.put(nfi.messenger, nfi); 3471 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 3472 } 3473 3474 @Override 3475 public void unregisterNetworkFactory(Messenger messenger) { 3476 enforceConnectivityInternalPermission(); 3477 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 3478 } 3479 3480 private void handleUnregisterNetworkFactory(Messenger messenger) { 3481 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 3482 if (nfi == null) { 3483 loge("Failed to find Messenger in unregisterNetworkFactory"); 3484 return; 3485 } 3486 if (DBG) log("unregisterNetworkFactory for " + nfi.name); 3487 } 3488 3489 /** 3490 * NetworkAgentInfo supporting a request by requestId. 3491 * These have already been vetted (their Capabilities satisfy the request) 3492 * and the are the highest scored network available. 3493 * the are keyed off the Requests requestId. 3494 */ 3495 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 3496 new SparseArray<NetworkAgentInfo>(); 3497 3498 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 3499 new SparseArray<NetworkAgentInfo>(); 3500 3501 // NetworkAgentInfo keyed off its connecting messenger 3502 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 3503 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 3504 new HashMap<Messenger, NetworkAgentInfo>(); 3505 3506 private final NetworkRequest mDefaultRequest; 3507 3508 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 3509 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 3510 } 3511 3512 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 3513 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 3514 int currentScore, NetworkMisc networkMisc) { 3515 enforceConnectivityInternalPermission(); 3516 3517 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), 3518 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 3519 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler, 3520 new NetworkMisc(networkMisc)); 3521 synchronized (this) { 3522 nai.networkMonitor.systemReady = mSystemReady; 3523 } 3524 if (DBG) log("registerNetworkAgent " + nai); 3525 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 3526 } 3527 3528 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 3529 if (VDBG) log("Got NetworkAgent Messenger"); 3530 mNetworkAgentInfos.put(na.messenger, na); 3531 assignNextNetId(na); 3532 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 3533 NetworkInfo networkInfo = na.networkInfo; 3534 na.networkInfo = null; 3535 updateNetworkInfo(na, networkInfo); 3536 } 3537 3538 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 3539 LinkProperties newLp = networkAgent.linkProperties; 3540 int netId = networkAgent.network.netId; 3541 3542 // The NetworkAgentInfo does not know whether clatd is running on its network or not. Before 3543 // we do anything else, make sure its LinkProperties are accurate. 3544 mClat.fixupLinkProperties(networkAgent, oldLp); 3545 3546 updateInterfaces(newLp, oldLp, netId); 3547 updateMtu(newLp, oldLp); 3548 // TODO - figure out what to do for clat 3549// for (LinkProperties lp : newLp.getStackedLinks()) { 3550// updateMtu(lp, null); 3551// } 3552 updateTcpBufferSizes(networkAgent); 3553 final boolean flushDns = updateRoutes(newLp, oldLp, netId); 3554 updateDnses(newLp, oldLp, netId, flushDns); 3555 updateClat(newLp, oldLp, networkAgent); 3556 if (isDefaultNetwork(networkAgent)) handleApplyDefaultProxy(newLp.getHttpProxy()); 3557 } 3558 3559 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { 3560 final boolean wasRunningClat = mClat.isRunningClat(na); 3561 final boolean shouldRunClat = Nat464Xlat.requiresClat(na); 3562 3563 if (!wasRunningClat && shouldRunClat) { 3564 // Start clatd. If it's already been started but is not running yet, this is a no-op. 3565 mClat.startClat(na); 3566 } else if (wasRunningClat && !shouldRunClat) { 3567 mClat.stopClat(); 3568 } 3569 } 3570 3571 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 3572 CompareResult<String> interfaceDiff = new CompareResult<String>(); 3573 if (oldLp != null) { 3574 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 3575 } else if (newLp != null) { 3576 interfaceDiff.added = newLp.getAllInterfaceNames(); 3577 } 3578 for (String iface : interfaceDiff.added) { 3579 try { 3580 if (DBG) log("Adding iface " + iface + " to network " + netId); 3581 mNetd.addInterfaceToNetwork(iface, netId); 3582 } catch (Exception e) { 3583 loge("Exception adding interface: " + e); 3584 } 3585 } 3586 for (String iface : interfaceDiff.removed) { 3587 try { 3588 if (DBG) log("Removing iface " + iface + " from network " + netId); 3589 mNetd.removeInterfaceFromNetwork(iface, netId); 3590 } catch (Exception e) { 3591 loge("Exception removing interface: " + e); 3592 } 3593 } 3594 } 3595 3596 /** 3597 * Have netd update routes from oldLp to newLp. 3598 * @return true if routes changed between oldLp and newLp 3599 */ 3600 private boolean updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 3601 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 3602 if (oldLp != null) { 3603 routeDiff = oldLp.compareAllRoutes(newLp); 3604 } else if (newLp != null) { 3605 routeDiff.added = newLp.getAllRoutes(); 3606 } 3607 3608 // add routes before removing old in case it helps with continuous connectivity 3609 3610 // do this twice, adding non-nexthop routes first, then routes they are dependent on 3611 for (RouteInfo route : routeDiff.added) { 3612 if (route.hasGateway()) continue; 3613 if (DBG) log("Adding Route [" + route + "] to network " + netId); 3614 try { 3615 mNetd.addRoute(netId, route); 3616 } catch (Exception e) { 3617 if ((route.getDestination().getAddress() instanceof Inet4Address) || VDBG) { 3618 loge("Exception in addRoute for non-gateway: " + e); 3619 } 3620 } 3621 } 3622 for (RouteInfo route : routeDiff.added) { 3623 if (route.hasGateway() == false) continue; 3624 if (DBG) log("Adding Route [" + route + "] to network " + netId); 3625 try { 3626 mNetd.addRoute(netId, route); 3627 } catch (Exception e) { 3628 if ((route.getGateway() instanceof Inet4Address) || VDBG) { 3629 loge("Exception in addRoute for gateway: " + e); 3630 } 3631 } 3632 } 3633 3634 for (RouteInfo route : routeDiff.removed) { 3635 if (DBG) log("Removing Route [" + route + "] from network " + netId); 3636 try { 3637 mNetd.removeRoute(netId, route); 3638 } catch (Exception e) { 3639 loge("Exception in removeRoute: " + e); 3640 } 3641 } 3642 return !routeDiff.added.isEmpty() || !routeDiff.removed.isEmpty(); 3643 } 3644 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId, boolean flush) { 3645 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 3646 Collection<InetAddress> dnses = newLp.getDnsServers(); 3647 if (dnses.size() == 0 && mDefaultDns != null) { 3648 dnses = new ArrayList(); 3649 dnses.add(mDefaultDns); 3650 if (DBG) { 3651 loge("no dns provided for netId " + netId + ", so using defaults"); 3652 } 3653 } 3654 if (DBG) log("Setting Dns servers for network " + netId + " to " + dnses); 3655 try { 3656 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 3657 newLp.getDomains()); 3658 } catch (Exception e) { 3659 loge("Exception in setDnsServersForNetwork: " + e); 3660 } 3661 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 3662 if (defaultNai != null && defaultNai.network.netId == netId) { 3663 setDefaultDnsSystemProperties(dnses); 3664 } 3665 flushVmDnsCache(); 3666 } else if (flush) { 3667 try { 3668 mNetd.flushNetworkDnsCache(netId); 3669 } catch (Exception e) { 3670 loge("Exception in flushNetworkDnsCache: " + e); 3671 } 3672 flushVmDnsCache(); 3673 } 3674 } 3675 3676 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 3677 int last = 0; 3678 for (InetAddress dns : dnses) { 3679 ++last; 3680 String key = "net.dns" + last; 3681 String value = dns.getHostAddress(); 3682 SystemProperties.set(key, value); 3683 } 3684 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 3685 String key = "net.dns" + i; 3686 SystemProperties.set(key, ""); 3687 } 3688 mNumDnsEntries = last; 3689 } 3690 3691 3692 private void updateCapabilities(NetworkAgentInfo networkAgent, 3693 NetworkCapabilities networkCapabilities) { 3694 // TODO - what else here? Verify still satisfies everybody? 3695 // Check if satisfies somebody new? call callbacks? 3696 synchronized (networkAgent) { 3697 networkAgent.networkCapabilities = networkCapabilities; 3698 } 3699 } 3700 3701 private void sendUpdatedScoreToFactories(NetworkAgentInfo nai) { 3702 for (int i = 0; i < nai.networkRequests.size(); i++) { 3703 NetworkRequest nr = nai.networkRequests.valueAt(i); 3704 // Don't send listening requests to factories. b/17393458 3705 if (!isRequest(nr)) continue; 3706 sendUpdatedScoreToFactories(nr, nai.getCurrentScore()); 3707 } 3708 } 3709 3710 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 3711 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 3712 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 3713 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 3714 networkRequest); 3715 } 3716 } 3717 3718 private void callCallbackForRequest(NetworkRequestInfo nri, 3719 NetworkAgentInfo networkAgent, int notificationType) { 3720 if (nri.messenger == null) return; // Default request has no msgr 3721 Object o; 3722 int a1 = 0; 3723 int a2 = 0; 3724 switch (notificationType) { 3725 case ConnectivityManager.CALLBACK_LOSING: 3726 a1 = 30 * 1000; // TODO - read this from NetworkMonitor 3727 // fall through 3728 case ConnectivityManager.CALLBACK_PRECHECK: 3729 case ConnectivityManager.CALLBACK_AVAILABLE: 3730 case ConnectivityManager.CALLBACK_LOST: 3731 case ConnectivityManager.CALLBACK_CAP_CHANGED: 3732 case ConnectivityManager.CALLBACK_IP_CHANGED: { 3733 o = new NetworkRequest(nri.request); 3734 a2 = networkAgent.network.netId; 3735 break; 3736 } 3737 case ConnectivityManager.CALLBACK_UNAVAIL: 3738 case ConnectivityManager.CALLBACK_RELEASED: { 3739 o = new NetworkRequest(nri.request); 3740 break; 3741 } 3742 default: { 3743 loge("Unknown notificationType " + notificationType); 3744 return; 3745 } 3746 } 3747 Message msg = Message.obtain(); 3748 msg.arg1 = a1; 3749 msg.arg2 = a2; 3750 msg.obj = o; 3751 msg.what = notificationType; 3752 try { 3753 if (VDBG) { 3754 log("sending notification " + notifyTypeToName(notificationType) + 3755 " for " + nri.request); 3756 } 3757 nri.messenger.send(msg); 3758 } catch (RemoteException e) { 3759 // may occur naturally in the race of binder death. 3760 loge("RemoteException caught trying to send a callback msg for " + nri.request); 3761 } 3762 } 3763 3764 private void teardownUnneededNetwork(NetworkAgentInfo nai) { 3765 for (int i = 0; i < nai.networkRequests.size(); i++) { 3766 NetworkRequest nr = nai.networkRequests.valueAt(i); 3767 // Ignore listening requests. 3768 if (!isRequest(nr)) continue; 3769 loge("Dead network still had at least " + nr); 3770 break; 3771 } 3772 nai.asyncChannel.disconnect(); 3773 } 3774 3775 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 3776 if (oldNetwork == null) { 3777 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 3778 return; 3779 } 3780 if (DBG) log("handleLingerComplete for " + oldNetwork.name()); 3781 teardownUnneededNetwork(oldNetwork); 3782 } 3783 3784 private void makeDefault(NetworkAgentInfo newNetwork) { 3785 if (DBG) log("Switching to new default network: " + newNetwork); 3786 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 3787 setupDataActivityTracking(newNetwork); 3788 try { 3789 mNetd.setDefaultNetId(newNetwork.network.netId); 3790 } catch (Exception e) { 3791 loge("Exception setting default network :" + e); 3792 } 3793 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 3794 updateTcpBufferSizes(newNetwork); 3795 } 3796 3797 // Handles a network appearing or improving its score. 3798 // 3799 // - Evaluates all current NetworkRequests that can be 3800 // satisfied by newNetwork, and reassigns to newNetwork 3801 // any such requests for which newNetwork is the best. 3802 // 3803 // - Lingers any Networks that as a result are no longer 3804 // needed. A network is needed if it is the best network for 3805 // one or more NetworkRequests, or if it is a VPN. 3806 // 3807 // - Tears down newNetwork if it just became validated 3808 // (i.e. nascent==true) but turns out to be unneeded. 3809 // Does not tear down newNetwork if it is unvalidated, 3810 // because future validation may improve newNetwork's 3811 // score enough that it is needed. 3812 // 3813 // NOTE: This function only adds NetworkRequests that "newNetwork" could satisfy, 3814 // it does not remove NetworkRequests that other Networks could better satisfy. 3815 // If you need to handle decreases in score, use {@link rematchAllNetworksAndRequests}. 3816 // This function should be used when possible instead of {@code rematchAllNetworksAndRequests} 3817 // as it performs better by a factor of the number of Networks. 3818 // 3819 // @param nascent indicates if newNetwork just became validated, in which case it should be 3820 // torn down if unneeded. If nascent is false, no action is taken if newNetwork 3821 // is found to be unneeded by this call. Presumably, in this case, either: 3822 // - newNetwork is unvalidated (and left alive), or 3823 // - the NetworkRequests keeping newNetwork alive have been transitioned to 3824 // another higher scoring network by another call to rematchNetworkAndRequests() 3825 // and this other call also lingered newNetwork. 3826 private void rematchNetworkAndRequests(NetworkAgentInfo newNetwork, boolean nascent) { 3827 if (!newNetwork.created) loge("ERROR: uncreated network being rematched."); 3828 if (nascent && !newNetwork.validated) loge("ERROR: nascent network not validated."); 3829 boolean keep = newNetwork.isVPN(); 3830 boolean isNewDefault = false; 3831 if (DBG) log("rematching " + newNetwork.name()); 3832 // Find and migrate to this Network any NetworkRequests for 3833 // which this network is now the best. 3834 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 3835 if (VDBG) log(" network has: " + newNetwork.networkCapabilities); 3836 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 3837 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 3838 if (newNetwork == currentNetwork) { 3839 if (DBG) { 3840 log("Network " + newNetwork.name() + " was already satisfying" + 3841 " request " + nri.request.requestId + ". No change."); 3842 } 3843 keep = true; 3844 continue; 3845 } 3846 3847 // check if it satisfies the NetworkCapabilities 3848 if (VDBG) log(" checking if request is satisfied: " + nri.request); 3849 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 3850 newNetwork.networkCapabilities)) { 3851 if (!nri.isRequest) { 3852 // This is not a request, it's a callback listener. 3853 // Add it to newNetwork regardless of score. 3854 newNetwork.addRequest(nri.request); 3855 continue; 3856 } 3857 3858 // next check if it's better than any current network we're using for 3859 // this request 3860 if (VDBG) { 3861 log("currentScore = " + 3862 (currentNetwork != null ? currentNetwork.getCurrentScore() : 0) + 3863 ", newScore = " + newNetwork.getCurrentScore()); 3864 } 3865 if (currentNetwork == null || 3866 currentNetwork.getCurrentScore() < newNetwork.getCurrentScore()) { 3867 if (currentNetwork != null) { 3868 if (DBG) log(" accepting network in place of " + currentNetwork.name()); 3869 currentNetwork.networkRequests.remove(nri.request.requestId); 3870 currentNetwork.networkLingered.add(nri.request); 3871 affectedNetworks.add(currentNetwork); 3872 } else { 3873 if (DBG) log(" accepting network in place of null"); 3874 } 3875 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 3876 newNetwork.addRequest(nri.request); 3877 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 3878 mLegacyTypeTracker.add(nri.request.legacyType, newNetwork); 3879 } 3880 keep = true; 3881 // Tell NetworkFactories about the new score, so they can stop 3882 // trying to connect if they know they cannot match it. 3883 // TODO - this could get expensive if we have alot of requests for this 3884 // network. Think about if there is a way to reduce this. Push 3885 // netid->request mapping to each factory? 3886 sendUpdatedScoreToFactories(nri.request, newNetwork.getCurrentScore()); 3887 if (mDefaultRequest.requestId == nri.request.requestId) { 3888 isNewDefault = true; 3889 // TODO: Remove following line. It's redundant with makeDefault call. 3890 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 3891 if (newNetwork.linkProperties != null) { 3892 updateTcpBufferSizes(newNetwork); 3893 setDefaultDnsSystemProperties( 3894 newNetwork.linkProperties.getDnsServers()); 3895 } else { 3896 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 3897 } 3898 // Maintain the illusion: since the legacy API only 3899 // understands one network at a time, we must pretend 3900 // that the current default network disconnected before 3901 // the new one connected. 3902 if (currentNetwork != null) { 3903 mLegacyTypeTracker.remove(currentNetwork.networkInfo.getType(), 3904 currentNetwork); 3905 } 3906 mDefaultInetConditionPublished = newNetwork.validated ? 100 : 0; 3907 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 3908 } 3909 } 3910 } 3911 } 3912 // Linger any networks that are no longer needed. 3913 for (NetworkAgentInfo nai : affectedNetworks) { 3914 boolean teardown = !nai.isVPN() && nai.validated; 3915 for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { 3916 NetworkRequest nr = nai.networkRequests.valueAt(i); 3917 try { 3918 if (isRequest(nr)) { 3919 teardown = false; 3920 } 3921 } catch (Exception e) { 3922 loge("Request " + nr + " not found in mNetworkRequests."); 3923 loge(" it came from request list of " + nai.name()); 3924 } 3925 } 3926 if (teardown) { 3927 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 3928 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 3929 } else { 3930 // not going to linger, so kill the list of linger networks.. only 3931 // notify them of linger if it happens as the result of gaining another, 3932 // but if they transition and old network stays up, don't tell them of linger 3933 // or very delayed loss 3934 nai.networkLingered.clear(); 3935 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 3936 } 3937 } 3938 if (keep) { 3939 if (isNewDefault) { 3940 // Notify system services that this network is up. 3941 makeDefault(newNetwork); 3942 synchronized (ConnectivityService.this) { 3943 // have a new default network, release the transition wakelock in 3944 // a second if it's held. The second pause is to allow apps 3945 // to reconnect over the new network 3946 if (mNetTransitionWakeLock.isHeld()) { 3947 mHandler.sendMessageDelayed(mHandler.obtainMessage( 3948 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 3949 mNetTransitionWakeLockSerialNumber, 0), 3950 1000); 3951 } 3952 } 3953 } 3954 3955 // Notify battery stats service about this network, both the normal 3956 // interface and any stacked links. 3957 // TODO: Avoid redoing this; this must only be done once when a network comes online. 3958 try { 3959 final IBatteryStats bs = BatteryStatsService.getService(); 3960 final int type = newNetwork.networkInfo.getType(); 3961 3962 final String baseIface = newNetwork.linkProperties.getInterfaceName(); 3963 bs.noteNetworkInterfaceType(baseIface, type); 3964 for (LinkProperties stacked : newNetwork.linkProperties.getStackedLinks()) { 3965 final String stackedIface = stacked.getInterfaceName(); 3966 bs.noteNetworkInterfaceType(stackedIface, type); 3967 NetworkStatsFactory.noteStackedIface(stackedIface, baseIface); 3968 } 3969 } catch (RemoteException ignored) { 3970 } 3971 3972 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 3973 } else if (nascent) { 3974 // Only tear down newly validated networks here. Leave unvalidated to either become 3975 // validated (and get evaluated against peers, one losing here) or 3976 // NetworkMonitor reports a bad network and we tear it down then. 3977 // Networks that have been up for a while and are validated should be torn down via 3978 // the lingering process so communication on that network is given time to wrap up. 3979 // TODO: Could teardown unvalidated networks when their NetworkCapabilities 3980 // satisfy no NetworkRequests. 3981 if (DBG) log("Validated network turns out to be unwanted. Tear it down."); 3982 teardownUnneededNetwork(newNetwork); 3983 } 3984 } 3985 3986 // Attempt to rematch all Networks with NetworkRequests. This may result in Networks 3987 // being disconnected. 3988 // If only one Network's score or capabilities have been modified since the last time 3989 // this function was called, pass this Network in via the "changed" arugment, otherwise 3990 // pass null. 3991 // If only one Network has been changed but its NetworkCapabilities have not changed, 3992 // pass in the Network's score (from getCurrentScore()) prior to the change via 3993 // "oldScore", otherwise pass changed.getCurrentScore() or 0 if "changed" is null. 3994 private void rematchAllNetworksAndRequests(NetworkAgentInfo changed, int oldScore) { 3995 // TODO: This may get slow. The "changed" parameter is provided for future optimization 3996 // to avoid the slowness. It is not simply enough to process just "changed", for 3997 // example in the case where "changed"'s score decreases and another network should begin 3998 // satifying a NetworkRequest that "changed" currently satisfies. 3999 4000 // Optimization: Only reprocess "changed" if its score improved. This is safe because it 4001 // can only add more NetworkRequests satisfied by "changed", and this is exactly what 4002 // rematchNetworkAndRequests() handles. 4003 if (changed != null && oldScore < changed.getCurrentScore()) { 4004 rematchNetworkAndRequests(changed, false); 4005 } else { 4006 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 4007 rematchNetworkAndRequests(nai, false); 4008 } 4009 } 4010 } 4011 4012 private void updateInetCondition(NetworkAgentInfo nai, boolean valid) { 4013 // Don't bother updating until we've graduated to validated at least once. 4014 if (!nai.validated) return; 4015 // For now only update icons for default connection. 4016 // TODO: Update WiFi and cellular icons separately. b/17237507 4017 if (!isDefaultNetwork(nai)) return; 4018 4019 int newInetCondition = valid ? 100 : 0; 4020 // Don't repeat publish. 4021 if (newInetCondition == mDefaultInetConditionPublished) return; 4022 4023 mDefaultInetConditionPublished = newInetCondition; 4024 sendInetConditionBroadcast(nai.networkInfo); 4025 } 4026 4027 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 4028 NetworkInfo.State state = newInfo.getState(); 4029 NetworkInfo oldInfo = null; 4030 synchronized (networkAgent) { 4031 oldInfo = networkAgent.networkInfo; 4032 networkAgent.networkInfo = newInfo; 4033 } 4034 if (networkAgent.isVPN() && mLockdownTracker != null) { 4035 mLockdownTracker.onVpnStateChanged(newInfo); 4036 } 4037 4038 if (oldInfo != null && oldInfo.getState() == state) { 4039 if (VDBG) log("ignoring duplicate network state non-change"); 4040 return; 4041 } 4042 if (DBG) { 4043 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 4044 (oldInfo == null ? "null" : oldInfo.getState()) + 4045 " to " + state); 4046 } 4047 4048 if (state == NetworkInfo.State.CONNECTED && !networkAgent.created) { 4049 try { 4050 // This should never fail. Specifying an already in use NetID will cause failure. 4051 if (networkAgent.isVPN()) { 4052 mNetd.createVirtualNetwork(networkAgent.network.netId, 4053 !networkAgent.linkProperties.getDnsServers().isEmpty(), 4054 (networkAgent.networkMisc == null || 4055 !networkAgent.networkMisc.allowBypass)); 4056 } else { 4057 mNetd.createPhysicalNetwork(networkAgent.network.netId); 4058 } 4059 } catch (Exception e) { 4060 loge("Error creating network " + networkAgent.network.netId + ": " 4061 + e.getMessage()); 4062 return; 4063 } 4064 networkAgent.created = true; 4065 updateLinkProperties(networkAgent, null); 4066 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 4067 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 4068 if (networkAgent.isVPN()) { 4069 // Temporarily disable the default proxy (not global). 4070 synchronized (mProxyLock) { 4071 if (!mDefaultProxyDisabled) { 4072 mDefaultProxyDisabled = true; 4073 if (mGlobalProxy == null && mDefaultProxy != null) { 4074 sendProxyBroadcast(null); 4075 } 4076 } 4077 } 4078 // TODO: support proxy per network. 4079 } 4080 // Consider network even though it is not yet validated. 4081 rematchNetworkAndRequests(networkAgent, false); 4082 } else if (state == NetworkInfo.State.DISCONNECTED || 4083 state == NetworkInfo.State.SUSPENDED) { 4084 networkAgent.asyncChannel.disconnect(); 4085 if (networkAgent.isVPN()) { 4086 synchronized (mProxyLock) { 4087 if (mDefaultProxyDisabled) { 4088 mDefaultProxyDisabled = false; 4089 if (mGlobalProxy == null && mDefaultProxy != null) { 4090 sendProxyBroadcast(mDefaultProxy); 4091 } 4092 } 4093 } 4094 } 4095 } 4096 } 4097 4098 private void updateNetworkScore(NetworkAgentInfo nai, int score) { 4099 if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); 4100 if (score < 0) { 4101 loge("updateNetworkScore for " + nai.name() + " got a negative score (" + score + 4102 "). Bumping score to min of 0"); 4103 score = 0; 4104 } 4105 4106 final int oldScore = nai.getCurrentScore(); 4107 nai.setCurrentScore(score); 4108 4109 if (nai.created) rematchAllNetworksAndRequests(nai, oldScore); 4110 4111 sendUpdatedScoreToFactories(nai); 4112 } 4113 4114 // notify only this one new request of the current state 4115 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 4116 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 4117 // TODO - read state from monitor to decide what to send. 4118// if (nai.networkMonitor.isLingering()) { 4119// notifyType = NetworkCallbacks.LOSING; 4120// } else if (nai.networkMonitor.isEvaluating()) { 4121// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 4122// } 4123 callCallbackForRequest(nri, nai, notifyType); 4124 } 4125 4126 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 4127 // The NetworkInfo we actually send out has no bearing on the real 4128 // state of affairs. For example, if the default connection is mobile, 4129 // and a request for HIPRI has just gone away, we need to pretend that 4130 // HIPRI has just disconnected. So we need to set the type to HIPRI and 4131 // the state to DISCONNECTED, even though the network is of type MOBILE 4132 // and is still connected. 4133 NetworkInfo info = new NetworkInfo(nai.networkInfo); 4134 info.setType(type); 4135 if (connected) { 4136 info.setDetailedState(DetailedState.CONNECTED, null, info.getExtraInfo()); 4137 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 4138 } else { 4139 info.setDetailedState(DetailedState.DISCONNECTED, null, info.getExtraInfo()); 4140 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 4141 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 4142 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 4143 if (info.isFailover()) { 4144 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 4145 nai.networkInfo.setFailover(false); 4146 } 4147 if (info.getReason() != null) { 4148 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 4149 } 4150 if (info.getExtraInfo() != null) { 4151 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 4152 } 4153 NetworkAgentInfo newDefaultAgent = null; 4154 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 4155 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 4156 if (newDefaultAgent != null) { 4157 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 4158 newDefaultAgent.networkInfo); 4159 } else { 4160 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 4161 } 4162 } 4163 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 4164 mDefaultInetConditionPublished); 4165 final Intent immediateIntent = new Intent(intent); 4166 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 4167 sendStickyBroadcast(immediateIntent); 4168 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 4169 if (newDefaultAgent != null) { 4170 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 4171 getConnectivityChangeDelay()); 4172 } 4173 } 4174 } 4175 4176 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 4177 if (DBG) log("notifyType " + notifyTypeToName(notifyType) + " for " + networkAgent.name()); 4178 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 4179 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 4180 NetworkRequestInfo nri = mNetworkRequests.get(nr); 4181 if (VDBG) log(" sending notification for " + nr); 4182 callCallbackForRequest(nri, networkAgent, notifyType); 4183 } 4184 } 4185 4186 private String notifyTypeToName(int notifyType) { 4187 switch (notifyType) { 4188 case ConnectivityManager.CALLBACK_PRECHECK: return "PRECHECK"; 4189 case ConnectivityManager.CALLBACK_AVAILABLE: return "AVAILABLE"; 4190 case ConnectivityManager.CALLBACK_LOSING: return "LOSING"; 4191 case ConnectivityManager.CALLBACK_LOST: return "LOST"; 4192 case ConnectivityManager.CALLBACK_UNAVAIL: return "UNAVAILABLE"; 4193 case ConnectivityManager.CALLBACK_CAP_CHANGED: return "CAP_CHANGED"; 4194 case ConnectivityManager.CALLBACK_IP_CHANGED: return "IP_CHANGED"; 4195 case ConnectivityManager.CALLBACK_RELEASED: return "RELEASED"; 4196 } 4197 return "UNKNOWN"; 4198 } 4199 4200 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 4201 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4202 if (nai != null) { 4203 synchronized (nai) { 4204 return new LinkProperties(nai.linkProperties); 4205 } 4206 } 4207 return new LinkProperties(); 4208 } 4209 4210 private NetworkInfo getNetworkInfoForType(int networkType) { 4211 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 4212 return null; 4213 4214 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4215 if (nai != null) { 4216 NetworkInfo result = new NetworkInfo(nai.networkInfo); 4217 result.setType(networkType); 4218 return result; 4219 } else { 4220 NetworkInfo result = new NetworkInfo( 4221 networkType, 0, ConnectivityManager.getNetworkTypeName(networkType), ""); 4222 result.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, null, null); 4223 return result; 4224 } 4225 } 4226 4227 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 4228 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4229 if (nai != null) { 4230 synchronized (nai) { 4231 return new NetworkCapabilities(nai.networkCapabilities); 4232 } 4233 } 4234 return new NetworkCapabilities(); 4235 } 4236 4237 @Override 4238 public boolean addVpnAddress(String address, int prefixLength) { 4239 throwIfLockdownEnabled(); 4240 int user = UserHandle.getUserId(Binder.getCallingUid()); 4241 synchronized (mVpns) { 4242 return mVpns.get(user).addAddress(address, prefixLength); 4243 } 4244 } 4245 4246 @Override 4247 public boolean removeVpnAddress(String address, int prefixLength) { 4248 throwIfLockdownEnabled(); 4249 int user = UserHandle.getUserId(Binder.getCallingUid()); 4250 synchronized (mVpns) { 4251 return mVpns.get(user).removeAddress(address, prefixLength); 4252 } 4253 } 4254} 4255