ConnectivityService.java revision 60c0c0da0a122702c8425808cdc2c7a79738295c
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_CBS; 27import static android.net.ConnectivityManager.TYPE_MOBILE_DUN; 28import static android.net.ConnectivityManager.TYPE_MOBILE_FOTA; 29import static android.net.ConnectivityManager.TYPE_MOBILE_HIPRI; 30import static android.net.ConnectivityManager.TYPE_MOBILE_IA; 31import static android.net.ConnectivityManager.TYPE_MOBILE_IMS; 32import static android.net.ConnectivityManager.TYPE_MOBILE_MMS; 33import static android.net.ConnectivityManager.TYPE_MOBILE_SUPL; 34import static android.net.ConnectivityManager.TYPE_NONE; 35import static android.net.ConnectivityManager.TYPE_PROXY; 36import static android.net.ConnectivityManager.TYPE_VPN; 37import static android.net.ConnectivityManager.TYPE_WIFI; 38import static android.net.ConnectivityManager.TYPE_WIMAX; 39import static android.net.ConnectivityManager.getNetworkTypeName; 40import static android.net.ConnectivityManager.isNetworkTypeValid; 41import static android.net.NetworkPolicyManager.RULE_ALLOW_ALL; 42import static android.net.NetworkPolicyManager.RULE_REJECT_METERED; 43 44import android.app.AlarmManager; 45import android.app.Notification; 46import android.app.NotificationManager; 47import android.app.PendingIntent; 48import android.content.ActivityNotFoundException; 49import android.content.BroadcastReceiver; 50import android.content.ContentResolver; 51import android.content.Context; 52import android.content.ContextWrapper; 53import android.content.Intent; 54import android.content.IntentFilter; 55import android.content.pm.PackageManager; 56import android.content.res.Configuration; 57import android.content.res.Resources; 58import android.database.ContentObserver; 59import android.net.ConnectivityManager; 60import android.net.IConnectivityManager; 61import android.net.INetworkManagementEventObserver; 62import android.net.INetworkPolicyListener; 63import android.net.INetworkPolicyManager; 64import android.net.INetworkStatsService; 65import android.net.LinkAddress; 66import android.net.LinkProperties; 67import android.net.LinkProperties.CompareResult; 68import android.net.LinkQualityInfo; 69import android.net.MobileDataStateTracker; 70import android.net.Network; 71import android.net.NetworkAgent; 72import android.net.NetworkCapabilities; 73import android.net.NetworkConfig; 74import android.net.NetworkInfo; 75import android.net.NetworkInfo.DetailedState; 76import android.net.NetworkFactory; 77import android.net.NetworkMisc; 78import android.net.NetworkQuotaInfo; 79import android.net.NetworkRequest; 80import android.net.NetworkState; 81import android.net.NetworkStateTracker; 82import android.net.NetworkUtils; 83import android.net.Proxy; 84import android.net.ProxyDataTracker; 85import android.net.ProxyInfo; 86import android.net.RouteInfo; 87import android.net.SamplingDataTracker; 88import android.net.UidRange; 89import android.net.Uri; 90import android.net.wimax.WimaxManagerConstants; 91import android.os.AsyncTask; 92import android.os.Binder; 93import android.os.Build; 94import android.os.Bundle; 95import android.os.FileUtils; 96import android.os.Handler; 97import android.os.HandlerThread; 98import android.os.IBinder; 99import android.os.INetworkManagementService; 100import android.os.Looper; 101import android.os.Message; 102import android.os.Messenger; 103import android.os.ParcelFileDescriptor; 104import android.os.PowerManager; 105import android.os.Process; 106import android.os.RemoteException; 107import android.os.ServiceManager; 108import android.os.SystemClock; 109import android.os.SystemProperties; 110import android.os.UserHandle; 111import android.os.UserManager; 112import android.provider.Settings; 113import android.security.Credentials; 114import android.security.KeyStore; 115import android.telephony.TelephonyManager; 116import android.text.TextUtils; 117import android.util.Slog; 118import android.util.SparseArray; 119import android.util.SparseIntArray; 120import android.util.Xml; 121 122import com.android.internal.R; 123import com.android.internal.annotations.GuardedBy; 124import com.android.internal.app.IBatteryStats; 125import com.android.internal.net.LegacyVpnInfo; 126import com.android.internal.net.NetworkStatsFactory; 127import com.android.internal.net.VpnConfig; 128import com.android.internal.net.VpnProfile; 129import com.android.internal.telephony.DctConstants; 130import com.android.internal.telephony.Phone; 131import com.android.internal.telephony.PhoneConstants; 132import com.android.internal.telephony.TelephonyIntents; 133import com.android.internal.util.AsyncChannel; 134import com.android.internal.util.IndentingPrintWriter; 135import com.android.internal.util.XmlUtils; 136import com.android.server.am.BatteryStatsService; 137import com.android.server.connectivity.DataConnectionStats; 138import com.android.server.connectivity.Nat464Xlat; 139import com.android.server.connectivity.NetworkAgentInfo; 140import com.android.server.connectivity.NetworkMonitor; 141import com.android.server.connectivity.PacManager; 142import com.android.server.connectivity.PermissionMonitor; 143import com.android.server.connectivity.Tethering; 144import com.android.server.connectivity.Vpn; 145import com.android.server.net.BaseNetworkObserver; 146import com.android.server.net.LockdownVpnTracker; 147import com.google.android.collect.Lists; 148import com.google.android.collect.Sets; 149 150import dalvik.system.DexClassLoader; 151 152import org.xmlpull.v1.XmlPullParser; 153import org.xmlpull.v1.XmlPullParserException; 154 155import java.io.File; 156import java.io.FileDescriptor; 157import java.io.FileNotFoundException; 158import java.io.FileReader; 159import java.io.IOException; 160import java.io.PrintWriter; 161import java.lang.reflect.Constructor; 162import java.net.HttpURLConnection; 163import java.net.Inet4Address; 164import java.net.Inet6Address; 165import java.net.InetAddress; 166import java.net.URL; 167import java.net.UnknownHostException; 168import java.util.ArrayList; 169import java.util.Arrays; 170import java.util.Collection; 171import java.util.GregorianCalendar; 172import java.util.HashMap; 173import java.util.HashSet; 174import java.util.List; 175import java.util.Map; 176import java.util.Objects; 177import java.util.Random; 178import java.util.concurrent.atomic.AtomicBoolean; 179import java.util.concurrent.atomic.AtomicInteger; 180 181import javax.net.ssl.HostnameVerifier; 182import javax.net.ssl.HttpsURLConnection; 183import javax.net.ssl.SSLSession; 184 185/** 186 * @hide 187 */ 188public class ConnectivityService extends IConnectivityManager.Stub { 189 private static final String TAG = "ConnectivityService"; 190 191 private static final boolean DBG = true; 192 private static final boolean VDBG = false; 193 194 // network sampling debugging 195 private static final boolean SAMPLE_DBG = false; 196 197 private static final boolean LOGD_RULES = false; 198 199 // TODO: create better separation between radio types and network types 200 201 // how long to wait before switching back to a radio's default network 202 private static final int RESTORE_DEFAULT_NETWORK_DELAY = 1 * 60 * 1000; 203 // system property that can override the above value 204 private static final String NETWORK_RESTORE_DELAY_PROP_NAME = 205 "android.telephony.apn-restore"; 206 207 // Default value if FAIL_FAST_TIME_MS is not set 208 private static final int DEFAULT_FAIL_FAST_TIME_MS = 1 * 60 * 1000; 209 // system property that can override DEFAULT_FAIL_FAST_TIME_MS 210 private static final String FAIL_FAST_TIME_MS = 211 "persist.radio.fail_fast_time_ms"; 212 213 private static final String ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED = 214 "android.net.ConnectivityService.action.PKT_CNT_SAMPLE_INTERVAL_ELAPSED"; 215 216 private static final int SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE = 0; 217 218 private PendingIntent mSampleIntervalElapsedIntent; 219 220 // Set network sampling interval at 12 minutes, this way, even if the timers get 221 // aggregated, it will fire at around 15 minutes, which should allow us to 222 // aggregate this timer with other timers (specially the socket keep alive timers) 223 private static final int DEFAULT_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 12 * 60); 224 225 // start network sampling a minute after booting ... 226 private static final int DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 60); 227 228 AlarmManager mAlarmManager; 229 230 private Tethering mTethering; 231 232 private final PermissionMonitor mPermissionMonitor; 233 234 private KeyStore mKeyStore; 235 236 @GuardedBy("mVpns") 237 private final SparseArray<Vpn> mVpns = new SparseArray<Vpn>(); 238 239 private boolean mLockdownEnabled; 240 private LockdownVpnTracker mLockdownTracker; 241 242 /** Lock around {@link #mUidRules} and {@link #mMeteredIfaces}. */ 243 private Object mRulesLock = new Object(); 244 /** Currently active network rules by UID. */ 245 private SparseIntArray mUidRules = new SparseIntArray(); 246 /** Set of ifaces that are costly. */ 247 private HashSet<String> mMeteredIfaces = Sets.newHashSet(); 248 249 /** 250 * Sometimes we want to refer to the individual network state 251 * trackers separately, and sometimes we just want to treat them 252 * abstractly. 253 */ 254 private NetworkStateTracker mNetTrackers[]; 255 256 private Context mContext; 257 private int mNetworkPreference; 258 private int mActiveDefaultNetwork = TYPE_NONE; 259 // 0 is full bad, 100 is full good 260 private int mDefaultInetConditionPublished = 0; 261 262 private Object mDnsLock = new Object(); 263 private int mNumDnsEntries; 264 265 private boolean mTestMode; 266 private static ConnectivityService sServiceInstance; 267 268 private INetworkManagementService mNetd; 269 private INetworkPolicyManager mPolicyManager; 270 271 private String mCurrentTcpBufferSizes; 272 273 private static final int ENABLED = 1; 274 private static final int DISABLED = 0; 275 276 /** 277 * used internally to change our mobile data enabled flag 278 */ 279 private static final int EVENT_CHANGE_MOBILE_DATA_ENABLED = 2; 280 281 /** 282 * used internally to clear a wakelock when transitioning 283 * from one net to another. Clear happens when we get a new 284 * network - EVENT_EXPIRE_NET_TRANSITION_WAKELOCK happens 285 * after a timeout if no network is found (typically 1 min). 286 */ 287 private static final int EVENT_CLEAR_NET_TRANSITION_WAKELOCK = 8; 288 289 /** 290 * used internally to reload global proxy settings 291 */ 292 private static final int EVENT_APPLY_GLOBAL_HTTP_PROXY = 9; 293 294 /** 295 * used internally to set external dependency met/unmet 296 * arg1 = ENABLED (met) or DISABLED (unmet) 297 * arg2 = NetworkType 298 */ 299 private static final int EVENT_SET_DEPENDENCY_MET = 10; 300 301 /** 302 * used internally to send a sticky broadcast delayed. 303 */ 304 private static final int EVENT_SEND_STICKY_BROADCAST_INTENT = 11; 305 306 /** 307 * Used internally to 308 * {@link NetworkStateTracker#setPolicyDataEnable(boolean)}. 309 */ 310 private static final int EVENT_SET_POLICY_DATA_ENABLE = 12; 311 312 /** 313 * Used internally to disable fail fast of mobile data 314 */ 315 private static final int EVENT_ENABLE_FAIL_FAST_MOBILE_DATA = 14; 316 317 /** 318 * used internally to indicate that data sampling interval is up 319 */ 320 private static final int EVENT_SAMPLE_INTERVAL_ELAPSED = 15; 321 322 /** 323 * PAC manager has received new port. 324 */ 325 private static final int EVENT_PROXY_HAS_CHANGED = 16; 326 327 /** 328 * used internally when registering NetworkFactories 329 * obj = NetworkFactoryInfo 330 */ 331 private static final int EVENT_REGISTER_NETWORK_FACTORY = 17; 332 333 /** 334 * used internally when registering NetworkAgents 335 * obj = Messenger 336 */ 337 private static final int EVENT_REGISTER_NETWORK_AGENT = 18; 338 339 /** 340 * used to add a network request 341 * includes a NetworkRequestInfo 342 */ 343 private static final int EVENT_REGISTER_NETWORK_REQUEST = 19; 344 345 /** 346 * indicates a timeout period is over - check if we had a network yet or not 347 * and if not, call the timeout calback (but leave the request live until they 348 * cancel it. 349 * includes a NetworkRequestInfo 350 */ 351 private static final int EVENT_TIMEOUT_NETWORK_REQUEST = 20; 352 353 /** 354 * used to add a network listener - no request 355 * includes a NetworkRequestInfo 356 */ 357 private static final int EVENT_REGISTER_NETWORK_LISTENER = 21; 358 359 /** 360 * used to remove a network request, either a listener or a real request 361 * arg1 = UID of caller 362 * obj = NetworkRequest 363 */ 364 private static final int EVENT_RELEASE_NETWORK_REQUEST = 22; 365 366 /** 367 * used internally when registering NetworkFactories 368 * obj = Messenger 369 */ 370 private static final int EVENT_UNREGISTER_NETWORK_FACTORY = 23; 371 372 /** 373 * used internally to expire a wakelock when transitioning 374 * from one net to another. Expire happens when we fail to find 375 * a new network (typically after 1 minute) - 376 * EVENT_CLEAR_NET_TRANSITION_WAKELOCK happens if we had found 377 * a replacement network. 378 */ 379 private static final int EVENT_EXPIRE_NET_TRANSITION_WAKELOCK = 24; 380 381 /** 382 * Used internally to indicate the system is ready. 383 */ 384 private static final int EVENT_SYSTEM_READY = 25; 385 386 387 /** Handler used for internal events. */ 388 final private InternalHandler mHandler; 389 /** Handler used for incoming {@link NetworkStateTracker} events. */ 390 final private NetworkStateTrackerHandler mTrackerHandler; 391 392 private boolean mSystemReady; 393 private Intent mInitialBroadcast; 394 395 private PowerManager.WakeLock mNetTransitionWakeLock; 396 private String mNetTransitionWakeLockCausedBy = ""; 397 private int mNetTransitionWakeLockSerialNumber; 398 private int mNetTransitionWakeLockTimeout; 399 400 private InetAddress mDefaultDns; 401 402 // used in DBG mode to track inet condition reports 403 private static final int INET_CONDITION_LOG_MAX_SIZE = 15; 404 private ArrayList mInetLog; 405 406 // track the current default http proxy - tell the world if we get a new one (real change) 407 private volatile ProxyInfo mDefaultProxy = null; 408 private Object mProxyLock = new Object(); 409 private boolean mDefaultProxyDisabled = false; 410 411 // track the global proxy. 412 private ProxyInfo mGlobalProxy = null; 413 414 private PacManager mPacManager = null; 415 416 private SettingsObserver mSettingsObserver; 417 418 private UserManager mUserManager; 419 420 NetworkConfig[] mNetConfigs; 421 int mNetworksDefined; 422 423 // the set of network types that can only be enabled by system/sig apps 424 List mProtectedNetworks; 425 426 private DataConnectionStats mDataConnectionStats; 427 428 private AtomicInteger mEnableFailFastMobileDataTag = new AtomicInteger(0); 429 430 TelephonyManager mTelephonyManager; 431 432 // sequence number for Networks; keep in sync with system/netd/NetworkController.cpp 433 private final static int MIN_NET_ID = 100; // some reserved marks 434 private final static int MAX_NET_ID = 65535; 435 private int mNextNetId = MIN_NET_ID; 436 437 // sequence number of NetworkRequests 438 private int mNextNetworkRequestId = 1; 439 440 /** 441 * Implements support for the legacy "one network per network type" model. 442 * 443 * We used to have a static array of NetworkStateTrackers, one for each 444 * network type, but that doesn't work any more now that we can have, 445 * for example, more that one wifi network. This class stores all the 446 * NetworkAgentInfo objects that support a given type, but the legacy 447 * API will only see the first one. 448 * 449 * It serves two main purposes: 450 * 451 * 1. Provide information about "the network for a given type" (since this 452 * API only supports one). 453 * 2. Send legacy connectivity change broadcasts. Broadcasts are sent if 454 * the first network for a given type changes, or if the default network 455 * changes. 456 */ 457 private class LegacyTypeTracker { 458 459 private static final boolean DBG = true; 460 private static final boolean VDBG = false; 461 private static final String TAG = "CSLegacyTypeTracker"; 462 463 /** 464 * Array of lists, one per legacy network type (e.g., TYPE_MOBILE_MMS). 465 * Each list holds references to all NetworkAgentInfos that are used to 466 * satisfy requests for that network type. 467 * 468 * This array is built out at startup such that an unsupported network 469 * doesn't get an ArrayList instance, making this a tristate: 470 * unsupported, supported but not active and active. 471 * 472 * The actual lists are populated when we scan the network types that 473 * are supported on this device. 474 */ 475 private ArrayList<NetworkAgentInfo> mTypeLists[]; 476 477 public LegacyTypeTracker() { 478 mTypeLists = (ArrayList<NetworkAgentInfo>[]) 479 new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE + 1]; 480 } 481 482 public void addSupportedType(int type) { 483 if (mTypeLists[type] != null) { 484 throw new IllegalStateException( 485 "legacy list for type " + type + "already initialized"); 486 } 487 mTypeLists[type] = new ArrayList<NetworkAgentInfo>(); 488 } 489 490 public boolean isTypeSupported(int type) { 491 return isNetworkTypeValid(type) && mTypeLists[type] != null; 492 } 493 494 public NetworkAgentInfo getNetworkForType(int type) { 495 if (isTypeSupported(type) && !mTypeLists[type].isEmpty()) { 496 return mTypeLists[type].get(0); 497 } else { 498 return null; 499 } 500 } 501 502 private void maybeLogBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 503 if (DBG) { 504 log("Sending " + (connected ? "connected" : "disconnected") + 505 " broadcast for type " + type + " " + nai.name() + 506 " isDefaultNetwork=" + isDefaultNetwork(nai)); 507 } 508 } 509 510 /** Adds the given network to the specified legacy type list. */ 511 public void add(int type, NetworkAgentInfo nai) { 512 if (!isTypeSupported(type)) { 513 return; // Invalid network type. 514 } 515 if (VDBG) log("Adding agent " + nai + " for legacy network type " + type); 516 517 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 518 if (list.contains(nai)) { 519 loge("Attempting to register duplicate agent for type " + type + ": " + nai); 520 return; 521 } 522 523 list.add(nai); 524 525 // Send a broadcast if this is the first network of its type or if it's the default. 526 if (list.size() == 1 || isDefaultNetwork(nai)) { 527 maybeLogBroadcast(nai, true, type); 528 sendLegacyNetworkBroadcast(nai, true, type); 529 } 530 } 531 532 /** Removes the given network from the specified legacy type list. */ 533 public void remove(int type, NetworkAgentInfo nai) { 534 ArrayList<NetworkAgentInfo> list = mTypeLists[type]; 535 if (list == null || list.isEmpty()) { 536 return; 537 } 538 539 boolean wasFirstNetwork = list.get(0).equals(nai); 540 541 if (!list.remove(nai)) { 542 return; 543 } 544 545 if (wasFirstNetwork || isDefaultNetwork(nai)) { 546 maybeLogBroadcast(nai, false, type); 547 sendLegacyNetworkBroadcast(nai, false, type); 548 } 549 550 if (!list.isEmpty() && wasFirstNetwork) { 551 if (DBG) log("Other network available for type " + type + 552 ", sending connected broadcast"); 553 maybeLogBroadcast(list.get(0), false, type); 554 sendLegacyNetworkBroadcast(list.get(0), false, type); 555 } 556 } 557 558 /** Removes the given network from all legacy type lists. */ 559 public void remove(NetworkAgentInfo nai) { 560 if (VDBG) log("Removing agent " + nai); 561 for (int type = 0; type < mTypeLists.length; type++) { 562 remove(type, nai); 563 } 564 } 565 566 private String naiToString(NetworkAgentInfo nai) { 567 String name = (nai != null) ? nai.name() : "null"; 568 String state = (nai.networkInfo != null) ? 569 nai.networkInfo.getState() + "/" + nai.networkInfo.getDetailedState() : 570 "???/???"; 571 return name + " " + state; 572 } 573 574 public void dump(IndentingPrintWriter pw) { 575 for (int type = 0; type < mTypeLists.length; type++) { 576 if (mTypeLists[type] == null) continue; 577 pw.print(type + " "); 578 pw.increaseIndent(); 579 if (mTypeLists[type].size() == 0) pw.println("none"); 580 for (NetworkAgentInfo nai : mTypeLists[type]) { 581 pw.println(naiToString(nai)); 582 } 583 pw.decreaseIndent(); 584 } 585 } 586 587 // This class needs its own log method because it has a different TAG. 588 private void log(String s) { 589 Slog.d(TAG, s); 590 } 591 592 } 593 private LegacyTypeTracker mLegacyTypeTracker = new LegacyTypeTracker(); 594 595 public ConnectivityService(Context context, INetworkManagementService netManager, 596 INetworkStatsService statsService, INetworkPolicyManager policyManager) { 597 if (DBG) log("ConnectivityService starting up"); 598 599 NetworkCapabilities netCap = new NetworkCapabilities(); 600 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 601 netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 602 mDefaultRequest = new NetworkRequest(netCap, TYPE_NONE, nextNetworkRequestId()); 603 NetworkRequestInfo nri = new NetworkRequestInfo(null, mDefaultRequest, new Binder(), 604 NetworkRequestInfo.REQUEST); 605 mNetworkRequests.put(mDefaultRequest, nri); 606 607 HandlerThread handlerThread = new HandlerThread("ConnectivityServiceThread"); 608 handlerThread.start(); 609 mHandler = new InternalHandler(handlerThread.getLooper()); 610 mTrackerHandler = new NetworkStateTrackerHandler(handlerThread.getLooper()); 611 612 // setup our unique device name 613 if (TextUtils.isEmpty(SystemProperties.get("net.hostname"))) { 614 String id = Settings.Secure.getString(context.getContentResolver(), 615 Settings.Secure.ANDROID_ID); 616 if (id != null && id.length() > 0) { 617 String name = new String("android-").concat(id); 618 SystemProperties.set("net.hostname", name); 619 } 620 } 621 622 // read our default dns server ip 623 String dns = Settings.Global.getString(context.getContentResolver(), 624 Settings.Global.DEFAULT_DNS_SERVER); 625 if (dns == null || dns.length() == 0) { 626 dns = context.getResources().getString( 627 com.android.internal.R.string.config_default_dns_server); 628 } 629 try { 630 mDefaultDns = NetworkUtils.numericToInetAddress(dns); 631 } catch (IllegalArgumentException e) { 632 loge("Error setting defaultDns using " + dns); 633 } 634 635 mContext = checkNotNull(context, "missing Context"); 636 mNetd = checkNotNull(netManager, "missing INetworkManagementService"); 637 mPolicyManager = checkNotNull(policyManager, "missing INetworkPolicyManager"); 638 mKeyStore = KeyStore.getInstance(); 639 mTelephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 640 641 try { 642 mPolicyManager.registerListener(mPolicyListener); 643 } catch (RemoteException e) { 644 // ouch, no rules updates means some processes may never get network 645 loge("unable to register INetworkPolicyListener" + e.toString()); 646 } 647 648 final PowerManager powerManager = (PowerManager) context.getSystemService( 649 Context.POWER_SERVICE); 650 mNetTransitionWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); 651 mNetTransitionWakeLockTimeout = mContext.getResources().getInteger( 652 com.android.internal.R.integer.config_networkTransitionTimeout); 653 654 mNetTrackers = new NetworkStateTracker[ 655 ConnectivityManager.MAX_NETWORK_TYPE+1]; 656 657 mNetConfigs = new NetworkConfig[ConnectivityManager.MAX_NETWORK_TYPE+1]; 658 659 // TODO: What is the "correct" way to do determine if this is a wifi only device? 660 boolean wifiOnly = SystemProperties.getBoolean("ro.radio.noril", false); 661 log("wifiOnly=" + wifiOnly); 662 String[] naStrings = context.getResources().getStringArray( 663 com.android.internal.R.array.networkAttributes); 664 for (String naString : naStrings) { 665 try { 666 NetworkConfig n = new NetworkConfig(naString); 667 if (VDBG) log("naString=" + naString + " config=" + n); 668 if (n.type > ConnectivityManager.MAX_NETWORK_TYPE) { 669 loge("Error in networkAttributes - ignoring attempt to define type " + 670 n.type); 671 continue; 672 } 673 if (wifiOnly && ConnectivityManager.isNetworkTypeMobile(n.type)) { 674 log("networkAttributes - ignoring mobile as this dev is wifiOnly " + 675 n.type); 676 continue; 677 } 678 if (mNetConfigs[n.type] != null) { 679 loge("Error in networkAttributes - ignoring attempt to redefine type " + 680 n.type); 681 continue; 682 } 683 mLegacyTypeTracker.addSupportedType(n.type); 684 685 mNetConfigs[n.type] = n; 686 mNetworksDefined++; 687 } catch(Exception e) { 688 // ignore it - leave the entry null 689 } 690 } 691 692 // Forcibly add TYPE_VPN as a supported type, if it has not already been added via config. 693 if (mNetConfigs[TYPE_VPN] == null) { 694 // mNetConfigs is used only for "restore time", which isn't applicable to VPNs, so we 695 // don't need to add TYPE_VPN to mNetConfigs. 696 mLegacyTypeTracker.addSupportedType(TYPE_VPN); 697 mNetworksDefined++; // used only in the log() statement below. 698 } 699 700 if (VDBG) log("mNetworksDefined=" + mNetworksDefined); 701 702 mProtectedNetworks = new ArrayList<Integer>(); 703 int[] protectedNetworks = context.getResources().getIntArray( 704 com.android.internal.R.array.config_protectedNetworks); 705 for (int p : protectedNetworks) { 706 if ((mNetConfigs[p] != null) && (mProtectedNetworks.contains(p) == false)) { 707 mProtectedNetworks.add(p); 708 } else { 709 if (DBG) loge("Ignoring protectedNetwork " + p); 710 } 711 } 712 713 mTestMode = SystemProperties.get("cm.test.mode").equals("true") 714 && SystemProperties.get("ro.build.type").equals("eng"); 715 716 mTethering = new Tethering(mContext, mNetd, statsService, mHandler.getLooper()); 717 718 mPermissionMonitor = new PermissionMonitor(mContext, mNetd); 719 720 //set up the listener for user state for creating user VPNs 721 IntentFilter intentFilter = new IntentFilter(); 722 intentFilter.addAction(Intent.ACTION_USER_STARTING); 723 intentFilter.addAction(Intent.ACTION_USER_STOPPING); 724 mContext.registerReceiverAsUser( 725 mUserIntentReceiver, UserHandle.ALL, intentFilter, null, null); 726 727 try { 728 mNetd.registerObserver(mTethering); 729 mNetd.registerObserver(mDataActivityObserver); 730 } catch (RemoteException e) { 731 loge("Error registering observer :" + e); 732 } 733 734 if (DBG) { 735 mInetLog = new ArrayList(); 736 } 737 738 mSettingsObserver = new SettingsObserver(mHandler, EVENT_APPLY_GLOBAL_HTTP_PROXY); 739 mSettingsObserver.observe(mContext); 740 741 mDataConnectionStats = new DataConnectionStats(mContext); 742 mDataConnectionStats.startMonitoring(); 743 744 mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE); 745 746 IntentFilter filter = new IntentFilter(); 747 filter.addAction(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 748 mContext.registerReceiver( 749 new BroadcastReceiver() { 750 @Override 751 public void onReceive(Context context, Intent intent) { 752 String action = intent.getAction(); 753 if (action.equals(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED)) { 754 mHandler.sendMessage(mHandler.obtainMessage 755 (EVENT_SAMPLE_INTERVAL_ELAPSED)); 756 } 757 } 758 }, 759 new IntentFilter(filter)); 760 761 mPacManager = new PacManager(mContext, mHandler, EVENT_PROXY_HAS_CHANGED); 762 763 mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); 764 } 765 766 private synchronized int nextNetworkRequestId() { 767 return mNextNetworkRequestId++; 768 } 769 770 private void assignNextNetId(NetworkAgentInfo nai) { 771 synchronized (mNetworkForNetId) { 772 for (int i = MIN_NET_ID; i <= MAX_NET_ID; i++) { 773 int netId = mNextNetId; 774 if (++mNextNetId > MAX_NET_ID) mNextNetId = MIN_NET_ID; 775 // Make sure NetID unused. http://b/16815182 776 if (mNetworkForNetId.get(netId) == null) { 777 nai.network = new Network(netId); 778 mNetworkForNetId.put(netId, nai); 779 return; 780 } 781 } 782 } 783 throw new IllegalStateException("No free netIds"); 784 } 785 786 private int getConnectivityChangeDelay() { 787 final ContentResolver cr = mContext.getContentResolver(); 788 789 /** Check system properties for the default value then use secure settings value, if any. */ 790 int defaultDelay = SystemProperties.getInt( 791 "conn." + Settings.Global.CONNECTIVITY_CHANGE_DELAY, 792 ConnectivityManager.CONNECTIVITY_CHANGE_DELAY_DEFAULT); 793 return Settings.Global.getInt(cr, Settings.Global.CONNECTIVITY_CHANGE_DELAY, 794 defaultDelay); 795 } 796 797 private boolean teardown(NetworkStateTracker netTracker) { 798 if (netTracker.teardown()) { 799 netTracker.setTeardownRequested(true); 800 return true; 801 } else { 802 return false; 803 } 804 } 805 806 /** 807 * Check if UID should be blocked from using the network represented by the given networkType. 808 * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. 809 */ 810 private boolean isNetworkBlocked(int networkType, int uid) { 811 return isNetworkWithLinkPropertiesBlocked(getLinkPropertiesForType(networkType), uid); 812 } 813 814 /** 815 * Check if UID should be blocked from using the network represented by the given 816 * NetworkAgentInfo. 817 */ 818 private boolean isNetworkBlocked(NetworkAgentInfo nai, int uid) { 819 return isNetworkWithLinkPropertiesBlocked(nai.linkProperties, uid); 820 } 821 822 /** 823 * Check if UID should be blocked from using the network with the given LinkProperties. 824 */ 825 private boolean isNetworkWithLinkPropertiesBlocked(LinkProperties lp, int uid) { 826 final boolean networkCostly; 827 final int uidRules; 828 829 final String iface = (lp == null ? "" : lp.getInterfaceName()); 830 synchronized (mRulesLock) { 831 networkCostly = mMeteredIfaces.contains(iface); 832 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 833 } 834 835 if (networkCostly && (uidRules & RULE_REJECT_METERED) != 0) { 836 return true; 837 } 838 839 // no restrictive rules; network is visible 840 return false; 841 } 842 843 /** 844 * Return a filtered {@link NetworkInfo}, potentially marked 845 * {@link DetailedState#BLOCKED} based on 846 * {@link #isNetworkBlocked}. 847 * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. 848 */ 849 private NetworkInfo getFilteredNetworkInfo(int networkType, int uid) { 850 NetworkInfo info = getNetworkInfoForType(networkType); 851 return getFilteredNetworkInfo(info, networkType, uid); 852 } 853 854 /* 855 * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. 856 */ 857 private NetworkInfo getFilteredNetworkInfo(NetworkInfo info, int networkType, int uid) { 858 if (isNetworkBlocked(networkType, uid)) { 859 // network is blocked; clone and override state 860 info = new NetworkInfo(info); 861 info.setDetailedState(DetailedState.BLOCKED, null, null); 862 if (VDBG) log("returning Blocked NetworkInfo"); 863 } 864 if (mLockdownTracker != null) { 865 info = mLockdownTracker.augmentNetworkInfo(info); 866 if (VDBG) log("returning Locked NetworkInfo"); 867 } 868 return info; 869 } 870 871 private NetworkInfo getFilteredNetworkInfo(NetworkAgentInfo nai, int uid) { 872 NetworkInfo info = nai.networkInfo; 873 if (isNetworkBlocked(nai, uid)) { 874 // network is blocked; clone and override state 875 info = new NetworkInfo(info); 876 info.setDetailedState(DetailedState.BLOCKED, null, null); 877 if (DBG) log("returning Blocked NetworkInfo"); 878 } 879 if (mLockdownTracker != null) { 880 info = mLockdownTracker.augmentNetworkInfo(info); 881 if (DBG) log("returning Locked NetworkInfo"); 882 } 883 return info; 884 } 885 886 /** 887 * Return NetworkInfo for the active (i.e., connected) network interface. 888 * It is assumed that at most one network is active at a time. If more 889 * than one is active, it is indeterminate which will be returned. 890 * @return the info for the active network, or {@code null} if none is 891 * active 892 */ 893 @Override 894 public NetworkInfo getActiveNetworkInfo() { 895 enforceAccessPermission(); 896 final int uid = Binder.getCallingUid(); 897 return getNetworkInfo(mActiveDefaultNetwork, uid); 898 } 899 900 /** 901 * Find the first Provisioning network. 902 * 903 * @return NetworkInfo or null if none. 904 */ 905 private NetworkInfo getProvisioningNetworkInfo() { 906 enforceAccessPermission(); 907 908 // Find the first Provisioning Network 909 NetworkInfo provNi = null; 910 for (NetworkInfo ni : getAllNetworkInfo()) { 911 if (ni.isConnectedToProvisioningNetwork()) { 912 provNi = ni; 913 break; 914 } 915 } 916 if (DBG) log("getProvisioningNetworkInfo: X provNi=" + provNi); 917 return provNi; 918 } 919 920 /** 921 * Find the first Provisioning network or the ActiveDefaultNetwork 922 * if there is no Provisioning network 923 * 924 * @return NetworkInfo or null if none. 925 */ 926 @Override 927 public NetworkInfo getProvisioningOrActiveNetworkInfo() { 928 enforceAccessPermission(); 929 930 NetworkInfo provNi = getProvisioningNetworkInfo(); 931 if (provNi == null) { 932 final int uid = Binder.getCallingUid(); 933 provNi = getNetworkInfo(mActiveDefaultNetwork, uid); 934 } 935 if (DBG) log("getProvisioningOrActiveNetworkInfo: X provNi=" + provNi); 936 return provNi; 937 } 938 939 public NetworkInfo getActiveNetworkInfoUnfiltered() { 940 enforceAccessPermission(); 941 if (isNetworkTypeValid(mActiveDefaultNetwork)) { 942 return getNetworkInfoForType(mActiveDefaultNetwork); 943 } 944 return null; 945 } 946 947 @Override 948 public NetworkInfo getActiveNetworkInfoForUid(int uid) { 949 enforceConnectivityInternalPermission(); 950 return getNetworkInfo(mActiveDefaultNetwork, uid); 951 } 952 953 @Override 954 public NetworkInfo getNetworkInfo(int networkType) { 955 enforceAccessPermission(); 956 final int uid = Binder.getCallingUid(); 957 return getNetworkInfo(networkType, uid); 958 } 959 960 private NetworkInfo getNetworkInfo(int networkType, int uid) { 961 NetworkInfo info = null; 962 if (isNetworkTypeValid(networkType)) { 963 if (getNetworkInfoForType(networkType) != null) { 964 info = getFilteredNetworkInfo(networkType, uid); 965 } 966 } 967 return info; 968 } 969 970 @Override 971 public NetworkInfo getNetworkInfoForNetwork(Network network) { 972 enforceAccessPermission(); 973 if (network == null) return null; 974 975 final int uid = Binder.getCallingUid(); 976 NetworkAgentInfo nai = null; 977 synchronized (mNetworkForNetId) { 978 nai = mNetworkForNetId.get(network.netId); 979 } 980 if (nai == null) return null; 981 synchronized (nai) { 982 if (nai.networkInfo == null) return null; 983 984 return getFilteredNetworkInfo(nai, uid); 985 } 986 } 987 988 @Override 989 public NetworkInfo[] getAllNetworkInfo() { 990 enforceAccessPermission(); 991 final int uid = Binder.getCallingUid(); 992 final ArrayList<NetworkInfo> result = Lists.newArrayList(); 993 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 994 networkType++) { 995 if (getNetworkInfoForType(networkType) != null) { 996 result.add(getFilteredNetworkInfo(networkType, uid)); 997 } 998 } 999 return result.toArray(new NetworkInfo[result.size()]); 1000 } 1001 1002 @Override 1003 public Network getNetworkForType(int networkType) { 1004 enforceAccessPermission(); 1005 final int uid = Binder.getCallingUid(); 1006 if (isNetworkBlocked(networkType, uid)) { 1007 return null; 1008 } 1009 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1010 return (nai == null) ? null : nai.network; 1011 } 1012 1013 @Override 1014 public Network[] getAllNetworks() { 1015 enforceAccessPermission(); 1016 final ArrayList<Network> result = new ArrayList(); 1017 synchronized (mNetworkForNetId) { 1018 for (int i = 0; i < mNetworkForNetId.size(); i++) { 1019 result.add(new Network(mNetworkForNetId.valueAt(i).network)); 1020 } 1021 } 1022 return result.toArray(new Network[result.size()]); 1023 } 1024 1025 @Override 1026 public boolean isNetworkSupported(int networkType) { 1027 enforceAccessPermission(); 1028 return (isNetworkTypeValid(networkType) && (getNetworkInfoForType(networkType) != null)); 1029 } 1030 1031 /** 1032 * Return LinkProperties for the active (i.e., connected) default 1033 * network interface. It is assumed that at most one default network 1034 * is active at a time. If more than one is active, it is indeterminate 1035 * which will be returned. 1036 * @return the ip properties for the active network, or {@code null} if 1037 * none is active 1038 */ 1039 @Override 1040 public LinkProperties getActiveLinkProperties() { 1041 return getLinkPropertiesForType(mActiveDefaultNetwork); 1042 } 1043 1044 @Override 1045 public LinkProperties getLinkPropertiesForType(int networkType) { 1046 enforceAccessPermission(); 1047 if (isNetworkTypeValid(networkType)) { 1048 return getLinkPropertiesForTypeInternal(networkType); 1049 } 1050 return null; 1051 } 1052 1053 // TODO - this should be ALL networks 1054 @Override 1055 public LinkProperties getLinkProperties(Network network) { 1056 enforceAccessPermission(); 1057 NetworkAgentInfo nai = null; 1058 synchronized (mNetworkForNetId) { 1059 nai = mNetworkForNetId.get(network.netId); 1060 } 1061 1062 if (nai != null) { 1063 synchronized (nai) { 1064 return new LinkProperties(nai.linkProperties); 1065 } 1066 } 1067 return null; 1068 } 1069 1070 @Override 1071 public NetworkCapabilities getNetworkCapabilities(Network network) { 1072 enforceAccessPermission(); 1073 NetworkAgentInfo nai = null; 1074 synchronized (mNetworkForNetId) { 1075 nai = mNetworkForNetId.get(network.netId); 1076 } 1077 if (nai != null) { 1078 synchronized (nai) { 1079 return new NetworkCapabilities(nai.networkCapabilities); 1080 } 1081 } 1082 return null; 1083 } 1084 1085 @Override 1086 public NetworkState[] getAllNetworkState() { 1087 enforceAccessPermission(); 1088 final int uid = Binder.getCallingUid(); 1089 final ArrayList<NetworkState> result = Lists.newArrayList(); 1090 for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; 1091 networkType++) { 1092 if (getNetworkInfoForType(networkType) != null) { 1093 final NetworkInfo info = getFilteredNetworkInfo(networkType, uid); 1094 final LinkProperties lp = getLinkPropertiesForTypeInternal(networkType); 1095 final NetworkCapabilities netcap = getNetworkCapabilitiesForType(networkType); 1096 result.add(new NetworkState(info, lp, netcap)); 1097 } 1098 } 1099 return result.toArray(new NetworkState[result.size()]); 1100 } 1101 1102 private NetworkState getNetworkStateUnchecked(int networkType) { 1103 if (isNetworkTypeValid(networkType)) { 1104 NetworkInfo info = getNetworkInfoForType(networkType); 1105 if (info != null) { 1106 return new NetworkState(info, 1107 getLinkPropertiesForTypeInternal(networkType), 1108 getNetworkCapabilitiesForType(networkType)); 1109 } 1110 } 1111 return null; 1112 } 1113 1114 @Override 1115 public NetworkQuotaInfo getActiveNetworkQuotaInfo() { 1116 enforceAccessPermission(); 1117 1118 final long token = Binder.clearCallingIdentity(); 1119 try { 1120 final NetworkState state = getNetworkStateUnchecked(mActiveDefaultNetwork); 1121 if (state != null) { 1122 try { 1123 return mPolicyManager.getNetworkQuotaInfo(state); 1124 } catch (RemoteException e) { 1125 } 1126 } 1127 return null; 1128 } finally { 1129 Binder.restoreCallingIdentity(token); 1130 } 1131 } 1132 1133 @Override 1134 public boolean isActiveNetworkMetered() { 1135 enforceAccessPermission(); 1136 final long token = Binder.clearCallingIdentity(); 1137 try { 1138 return isNetworkMeteredUnchecked(mActiveDefaultNetwork); 1139 } finally { 1140 Binder.restoreCallingIdentity(token); 1141 } 1142 } 1143 1144 private boolean isNetworkMeteredUnchecked(int networkType) { 1145 final NetworkState state = getNetworkStateUnchecked(networkType); 1146 if (state != null) { 1147 try { 1148 return mPolicyManager.isNetworkMetered(state); 1149 } catch (RemoteException e) { 1150 } 1151 } 1152 return false; 1153 } 1154 1155 private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { 1156 @Override 1157 public void interfaceClassDataActivityChanged(String label, boolean active, long tsNanos) { 1158 int deviceType = Integer.parseInt(label); 1159 sendDataActivityBroadcast(deviceType, active, tsNanos); 1160 } 1161 }; 1162 1163 /** 1164 * Ensure that a network route exists to deliver traffic to the specified 1165 * host via the specified network interface. 1166 * @param networkType the type of the network over which traffic to the 1167 * specified host is to be routed 1168 * @param hostAddress the IP address of the host to which the route is 1169 * desired 1170 * @return {@code true} on success, {@code false} on failure 1171 */ 1172 public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress) { 1173 enforceChangePermission(); 1174 if (mProtectedNetworks.contains(networkType)) { 1175 enforceConnectivityInternalPermission(); 1176 } 1177 1178 InetAddress addr; 1179 try { 1180 addr = InetAddress.getByAddress(hostAddress); 1181 } catch (UnknownHostException e) { 1182 if (DBG) log("requestRouteToHostAddress got " + e.toString()); 1183 return false; 1184 } 1185 1186 if (!ConnectivityManager.isNetworkTypeValid(networkType)) { 1187 if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); 1188 return false; 1189 } 1190 1191 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 1192 if (nai == null) { 1193 if (mLegacyTypeTracker.isTypeSupported(networkType) == false) { 1194 if (DBG) log("requestRouteToHostAddress on unsupported network: " + networkType); 1195 } else { 1196 if (DBG) log("requestRouteToHostAddress on down network: " + networkType); 1197 } 1198 return false; 1199 } 1200 1201 DetailedState netState; 1202 synchronized (nai) { 1203 netState = nai.networkInfo.getDetailedState(); 1204 } 1205 1206 if (netState != DetailedState.CONNECTED && netState != DetailedState.CAPTIVE_PORTAL_CHECK) { 1207 if (VDBG) { 1208 log("requestRouteToHostAddress on down network " 1209 + "(" + networkType + ") - dropped" 1210 + " netState=" + netState); 1211 } 1212 return false; 1213 } 1214 1215 final int uid = Binder.getCallingUid(); 1216 final long token = Binder.clearCallingIdentity(); 1217 try { 1218 LinkProperties lp; 1219 int netId; 1220 synchronized (nai) { 1221 lp = nai.linkProperties; 1222 netId = nai.network.netId; 1223 } 1224 boolean ok = addLegacyRouteToHost(lp, addr, netId, uid); 1225 if (DBG) log("requestRouteToHostAddress ok=" + ok); 1226 return ok; 1227 } finally { 1228 Binder.restoreCallingIdentity(token); 1229 } 1230 } 1231 1232 private boolean addLegacyRouteToHost(LinkProperties lp, InetAddress addr, int netId, int uid) { 1233 RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), addr); 1234 if (bestRoute == null) { 1235 bestRoute = RouteInfo.makeHostRoute(addr, lp.getInterfaceName()); 1236 } else { 1237 String iface = bestRoute.getInterface(); 1238 if (bestRoute.getGateway().equals(addr)) { 1239 // if there is no better route, add the implied hostroute for our gateway 1240 bestRoute = RouteInfo.makeHostRoute(addr, iface); 1241 } else { 1242 // if we will connect to this through another route, add a direct route 1243 // to it's gateway 1244 bestRoute = RouteInfo.makeHostRoute(addr, bestRoute.getGateway(), iface); 1245 } 1246 } 1247 if (DBG) log("Adding " + bestRoute + " for interface " + bestRoute.getInterface()); 1248 try { 1249 mNetd.addLegacyRouteForNetId(netId, bestRoute, uid); 1250 } catch (Exception e) { 1251 // never crash - catch them all 1252 if (DBG) loge("Exception trying to add a route: " + e); 1253 return false; 1254 } 1255 return true; 1256 } 1257 1258 public void setDataDependency(int networkType, boolean met) { 1259 enforceConnectivityInternalPermission(); 1260 1261 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_DEPENDENCY_MET, 1262 (met ? ENABLED : DISABLED), networkType)); 1263 } 1264 1265 private void handleSetDependencyMet(int networkType, boolean met) { 1266 if (mNetTrackers[networkType] != null) { 1267 if (DBG) { 1268 log("handleSetDependencyMet(" + networkType + ", " + met + ")"); 1269 } 1270 mNetTrackers[networkType].setDependencyMet(met); 1271 } 1272 } 1273 1274 private INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() { 1275 @Override 1276 public void onUidRulesChanged(int uid, int uidRules) { 1277 // caller is NPMS, since we only register with them 1278 if (LOGD_RULES) { 1279 log("onUidRulesChanged(uid=" + uid + ", uidRules=" + uidRules + ")"); 1280 } 1281 1282 synchronized (mRulesLock) { 1283 // skip update when we've already applied rules 1284 final int oldRules = mUidRules.get(uid, RULE_ALLOW_ALL); 1285 if (oldRules == uidRules) return; 1286 1287 mUidRules.put(uid, uidRules); 1288 } 1289 1290 // TODO: notify UID when it has requested targeted updates 1291 } 1292 1293 @Override 1294 public void onMeteredIfacesChanged(String[] meteredIfaces) { 1295 // caller is NPMS, since we only register with them 1296 if (LOGD_RULES) { 1297 log("onMeteredIfacesChanged(ifaces=" + Arrays.toString(meteredIfaces) + ")"); 1298 } 1299 1300 synchronized (mRulesLock) { 1301 mMeteredIfaces.clear(); 1302 for (String iface : meteredIfaces) { 1303 mMeteredIfaces.add(iface); 1304 } 1305 } 1306 } 1307 1308 @Override 1309 public void onRestrictBackgroundChanged(boolean restrictBackground) { 1310 // caller is NPMS, since we only register with them 1311 if (LOGD_RULES) { 1312 log("onRestrictBackgroundChanged(restrictBackground=" + restrictBackground + ")"); 1313 } 1314 1315 // kick off connectivity change broadcast for active network, since 1316 // global background policy change is radical. 1317 final int networkType = mActiveDefaultNetwork; 1318 if (isNetworkTypeValid(networkType)) { 1319 final NetworkStateTracker tracker = mNetTrackers[networkType]; 1320 if (tracker != null) { 1321 final NetworkInfo info = tracker.getNetworkInfo(); 1322 if (info != null && info.isConnected()) { 1323 sendConnectedBroadcast(info); 1324 } 1325 } 1326 } 1327 } 1328 }; 1329 1330 @Override 1331 public void setPolicyDataEnable(int networkType, boolean enabled) { 1332 // only someone like NPMS should only be calling us 1333 mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); 1334 1335 mHandler.sendMessage(mHandler.obtainMessage( 1336 EVENT_SET_POLICY_DATA_ENABLE, networkType, (enabled ? ENABLED : DISABLED))); 1337 } 1338 1339 private void handleSetPolicyDataEnable(int networkType, boolean enabled) { 1340 // TODO - handle this passing to factories 1341// if (isNetworkTypeValid(networkType)) { 1342// final NetworkStateTracker tracker = mNetTrackers[networkType]; 1343// if (tracker != null) { 1344// tracker.setPolicyDataEnable(enabled); 1345// } 1346// } 1347 } 1348 1349 private void enforceInternetPermission() { 1350 mContext.enforceCallingOrSelfPermission( 1351 android.Manifest.permission.INTERNET, 1352 "ConnectivityService"); 1353 } 1354 1355 private void enforceAccessPermission() { 1356 mContext.enforceCallingOrSelfPermission( 1357 android.Manifest.permission.ACCESS_NETWORK_STATE, 1358 "ConnectivityService"); 1359 } 1360 1361 private void enforceChangePermission() { 1362 mContext.enforceCallingOrSelfPermission( 1363 android.Manifest.permission.CHANGE_NETWORK_STATE, 1364 "ConnectivityService"); 1365 } 1366 1367 private void enforceTetherAccessPermission() { 1368 mContext.enforceCallingOrSelfPermission( 1369 android.Manifest.permission.ACCESS_NETWORK_STATE, 1370 "ConnectivityService"); 1371 } 1372 1373 private void enforceConnectivityInternalPermission() { 1374 mContext.enforceCallingOrSelfPermission( 1375 android.Manifest.permission.CONNECTIVITY_INTERNAL, 1376 "ConnectivityService"); 1377 } 1378 1379 public void sendConnectedBroadcast(NetworkInfo info) { 1380 enforceConnectivityInternalPermission(); 1381 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1382 sendGeneralBroadcast(info, CONNECTIVITY_ACTION); 1383 } 1384 1385 private void sendConnectedBroadcastDelayed(NetworkInfo info, int delayMs) { 1386 sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); 1387 sendGeneralBroadcastDelayed(info, CONNECTIVITY_ACTION, delayMs); 1388 } 1389 1390 private void sendInetConditionBroadcast(NetworkInfo info) { 1391 sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION); 1392 } 1393 1394 private Intent makeGeneralIntent(NetworkInfo info, String bcastType) { 1395 if (mLockdownTracker != null) { 1396 info = mLockdownTracker.augmentNetworkInfo(info); 1397 } 1398 1399 Intent intent = new Intent(bcastType); 1400 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); 1401 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 1402 if (info.isFailover()) { 1403 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 1404 info.setFailover(false); 1405 } 1406 if (info.getReason() != null) { 1407 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 1408 } 1409 if (info.getExtraInfo() != null) { 1410 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, 1411 info.getExtraInfo()); 1412 } 1413 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); 1414 return intent; 1415 } 1416 1417 private void sendGeneralBroadcast(NetworkInfo info, String bcastType) { 1418 sendStickyBroadcast(makeGeneralIntent(info, bcastType)); 1419 } 1420 1421 private void sendGeneralBroadcastDelayed(NetworkInfo info, String bcastType, int delayMs) { 1422 sendStickyBroadcastDelayed(makeGeneralIntent(info, bcastType), delayMs); 1423 } 1424 1425 private void sendDataActivityBroadcast(int deviceType, boolean active, long tsNanos) { 1426 Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); 1427 intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); 1428 intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); 1429 intent.putExtra(ConnectivityManager.EXTRA_REALTIME_NS, tsNanos); 1430 final long ident = Binder.clearCallingIdentity(); 1431 try { 1432 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, 1433 RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); 1434 } finally { 1435 Binder.restoreCallingIdentity(ident); 1436 } 1437 } 1438 1439 private void sendStickyBroadcast(Intent intent) { 1440 synchronized(this) { 1441 if (!mSystemReady) { 1442 mInitialBroadcast = new Intent(intent); 1443 } 1444 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1445 if (DBG) { 1446 log("sendStickyBroadcast: action=" + intent.getAction()); 1447 } 1448 1449 final long ident = Binder.clearCallingIdentity(); 1450 try { 1451 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1452 } finally { 1453 Binder.restoreCallingIdentity(ident); 1454 } 1455 } 1456 } 1457 1458 private void sendStickyBroadcastDelayed(Intent intent, int delayMs) { 1459 if (delayMs <= 0) { 1460 sendStickyBroadcast(intent); 1461 } else { 1462 if (VDBG) { 1463 log("sendStickyBroadcastDelayed: delayMs=" + delayMs + ", action=" 1464 + intent.getAction()); 1465 } 1466 mHandler.sendMessageDelayed(mHandler.obtainMessage( 1467 EVENT_SEND_STICKY_BROADCAST_INTENT, intent), delayMs); 1468 } 1469 } 1470 1471 void systemReady() { 1472 // start network sampling .. 1473 Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); 1474 intent.setPackage(mContext.getPackageName()); 1475 1476 mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, 1477 SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); 1478 setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); 1479 1480 loadGlobalProxy(); 1481 1482 synchronized(this) { 1483 mSystemReady = true; 1484 if (mInitialBroadcast != null) { 1485 mContext.sendStickyBroadcastAsUser(mInitialBroadcast, UserHandle.ALL); 1486 mInitialBroadcast = null; 1487 } 1488 } 1489 // load the global proxy at startup 1490 mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY)); 1491 1492 // Try bringing up tracker, but if KeyStore isn't ready yet, wait 1493 // for user to unlock device. 1494 if (!updateLockdownVpn()) { 1495 final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_PRESENT); 1496 mContext.registerReceiver(mUserPresentReceiver, filter); 1497 } 1498 1499 mHandler.sendMessage(mHandler.obtainMessage(EVENT_SYSTEM_READY)); 1500 1501 mPermissionMonitor.startMonitoring(); 1502 } 1503 1504 private BroadcastReceiver mUserPresentReceiver = new BroadcastReceiver() { 1505 @Override 1506 public void onReceive(Context context, Intent intent) { 1507 // Try creating lockdown tracker, since user present usually means 1508 // unlocked keystore. 1509 if (updateLockdownVpn()) { 1510 mContext.unregisterReceiver(this); 1511 } 1512 } 1513 }; 1514 1515 /** @hide */ 1516 @Override 1517 public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { 1518 enforceConnectivityInternalPermission(); 1519 if (DBG) log("captivePortalCheckCompleted: ni=" + info + " captive=" + isCaptivePortal); 1520// mNetTrackers[info.getType()].captivePortalCheckCompleted(isCaptivePortal); 1521 } 1522 1523 /** 1524 * Setup data activity tracking for the given network. 1525 * 1526 * Every {@code setupDataActivityTracking} should be paired with a 1527 * {@link #removeDataActivityTracking} for cleanup. 1528 */ 1529 private void setupDataActivityTracking(NetworkAgentInfo networkAgent) { 1530 final String iface = networkAgent.linkProperties.getInterfaceName(); 1531 1532 final int timeout; 1533 int type = ConnectivityManager.TYPE_NONE; 1534 1535 if (networkAgent.networkCapabilities.hasTransport( 1536 NetworkCapabilities.TRANSPORT_CELLULAR)) { 1537 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1538 Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, 1539 5); 1540 type = ConnectivityManager.TYPE_MOBILE; 1541 } else if (networkAgent.networkCapabilities.hasTransport( 1542 NetworkCapabilities.TRANSPORT_WIFI)) { 1543 timeout = Settings.Global.getInt(mContext.getContentResolver(), 1544 Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, 1545 0); 1546 type = ConnectivityManager.TYPE_WIFI; 1547 } else { 1548 // do not track any other networks 1549 timeout = 0; 1550 } 1551 1552 if (timeout > 0 && iface != null && type != ConnectivityManager.TYPE_NONE) { 1553 try { 1554 mNetd.addIdleTimer(iface, timeout, type); 1555 } catch (Exception e) { 1556 // You shall not crash! 1557 loge("Exception in setupDataActivityTracking " + e); 1558 } 1559 } 1560 } 1561 1562 /** 1563 * Remove data activity tracking when network disconnects. 1564 */ 1565 private void removeDataActivityTracking(NetworkAgentInfo networkAgent) { 1566 final String iface = networkAgent.linkProperties.getInterfaceName(); 1567 final NetworkCapabilities caps = networkAgent.networkCapabilities; 1568 1569 if (iface != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) || 1570 caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))) { 1571 try { 1572 // the call fails silently if no idletimer setup for this interface 1573 mNetd.removeIdleTimer(iface); 1574 } catch (Exception e) { 1575 loge("Exception in removeDataActivityTracking " + e); 1576 } 1577 } 1578 } 1579 1580 /** 1581 * Reads the network specific MTU size from reources. 1582 * and set it on it's iface. 1583 */ 1584 private void updateMtu(LinkProperties newLp, LinkProperties oldLp) { 1585 final String iface = newLp.getInterfaceName(); 1586 final int mtu = newLp.getMtu(); 1587 if (oldLp != null && newLp.isIdenticalMtu(oldLp)) { 1588 if (VDBG) log("identical MTU - not setting"); 1589 return; 1590 } 1591 1592 if (LinkProperties.isValidMtu(mtu, newLp.hasGlobalIPv6Address()) == false) { 1593 loge("Unexpected mtu value: " + mtu + ", " + iface); 1594 return; 1595 } 1596 1597 // Cannot set MTU without interface name 1598 if (TextUtils.isEmpty(iface)) { 1599 loge("Setting MTU size with null iface."); 1600 return; 1601 } 1602 1603 try { 1604 if (DBG) log("Setting MTU size: " + iface + ", " + mtu); 1605 mNetd.setMtu(iface, mtu); 1606 } catch (Exception e) { 1607 Slog.e(TAG, "exception in setMtu()" + e); 1608 } 1609 } 1610 1611 private static final String DEFAULT_TCP_BUFFER_SIZES = "4096,87380,110208,4096,16384,110208"; 1612 1613 private void updateTcpBufferSizes(NetworkAgentInfo nai) { 1614 if (isDefaultNetwork(nai) == false) { 1615 return; 1616 } 1617 1618 String tcpBufferSizes = nai.linkProperties.getTcpBufferSizes(); 1619 String[] values = null; 1620 if (tcpBufferSizes != null) { 1621 values = tcpBufferSizes.split(","); 1622 } 1623 1624 if (values == null || values.length != 6) { 1625 if (DBG) log("Invalid tcpBufferSizes string: " + tcpBufferSizes +", using defaults"); 1626 tcpBufferSizes = DEFAULT_TCP_BUFFER_SIZES; 1627 values = tcpBufferSizes.split(","); 1628 } 1629 1630 if (tcpBufferSizes.equals(mCurrentTcpBufferSizes)) return; 1631 1632 try { 1633 if (DBG) Slog.d(TAG, "Setting tx/rx TCP buffers to " + tcpBufferSizes); 1634 1635 final String prefix = "/sys/kernel/ipv4/tcp_"; 1636 FileUtils.stringToFile(prefix + "rmem_min", values[0]); 1637 FileUtils.stringToFile(prefix + "rmem_def", values[1]); 1638 FileUtils.stringToFile(prefix + "rmem_max", values[2]); 1639 FileUtils.stringToFile(prefix + "wmem_min", values[3]); 1640 FileUtils.stringToFile(prefix + "wmem_def", values[4]); 1641 FileUtils.stringToFile(prefix + "wmem_max", values[5]); 1642 mCurrentTcpBufferSizes = tcpBufferSizes; 1643 } catch (IOException e) { 1644 loge("Can't set TCP buffer sizes:" + e); 1645 } 1646 1647 final String defaultRwndKey = "net.tcp.default_init_rwnd"; 1648 int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0); 1649 Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(), 1650 Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue); 1651 final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd"; 1652 if (rwndValue != 0) { 1653 SystemProperties.set(sysctlKey, rwndValue.toString()); 1654 } 1655 } 1656 1657 private void flushVmDnsCache() { 1658 /* 1659 * Tell the VMs to toss their DNS caches 1660 */ 1661 Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE); 1662 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); 1663 /* 1664 * Connectivity events can happen before boot has completed ... 1665 */ 1666 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1667 final long ident = Binder.clearCallingIdentity(); 1668 try { 1669 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 1670 } finally { 1671 Binder.restoreCallingIdentity(ident); 1672 } 1673 } 1674 1675 @Override 1676 public int getRestoreDefaultNetworkDelay(int networkType) { 1677 String restoreDefaultNetworkDelayStr = SystemProperties.get( 1678 NETWORK_RESTORE_DELAY_PROP_NAME); 1679 if(restoreDefaultNetworkDelayStr != null && 1680 restoreDefaultNetworkDelayStr.length() != 0) { 1681 try { 1682 return Integer.valueOf(restoreDefaultNetworkDelayStr); 1683 } catch (NumberFormatException e) { 1684 } 1685 } 1686 // if the system property isn't set, use the value for the apn type 1687 int ret = RESTORE_DEFAULT_NETWORK_DELAY; 1688 1689 if ((networkType <= ConnectivityManager.MAX_NETWORK_TYPE) && 1690 (mNetConfigs[networkType] != null)) { 1691 ret = mNetConfigs[networkType].restoreTime; 1692 } 1693 return ret; 1694 } 1695 1696 @Override 1697 protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { 1698 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1699 if (mContext.checkCallingOrSelfPermission( 1700 android.Manifest.permission.DUMP) 1701 != PackageManager.PERMISSION_GRANTED) { 1702 pw.println("Permission Denial: can't dump ConnectivityService " + 1703 "from from pid=" + Binder.getCallingPid() + ", uid=" + 1704 Binder.getCallingUid()); 1705 return; 1706 } 1707 1708 pw.println("NetworkFactories for:"); 1709 pw.increaseIndent(); 1710 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 1711 pw.println(nfi.name); 1712 } 1713 pw.decreaseIndent(); 1714 pw.println(); 1715 1716 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 1717 pw.print("Active default network: "); 1718 if (defaultNai == null) { 1719 pw.println("none"); 1720 } else { 1721 pw.println(defaultNai.network.netId); 1722 } 1723 pw.println(); 1724 1725 pw.println("Current Networks:"); 1726 pw.increaseIndent(); 1727 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 1728 pw.println(nai.toString()); 1729 pw.increaseIndent(); 1730 pw.println("Requests:"); 1731 pw.increaseIndent(); 1732 for (int i = 0; i < nai.networkRequests.size(); i++) { 1733 pw.println(nai.networkRequests.valueAt(i).toString()); 1734 } 1735 pw.decreaseIndent(); 1736 pw.println("Lingered:"); 1737 pw.increaseIndent(); 1738 for (NetworkRequest nr : nai.networkLingered) pw.println(nr.toString()); 1739 pw.decreaseIndent(); 1740 pw.decreaseIndent(); 1741 } 1742 pw.decreaseIndent(); 1743 pw.println(); 1744 1745 pw.println("Network Requests:"); 1746 pw.increaseIndent(); 1747 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 1748 pw.println(nri.toString()); 1749 } 1750 pw.println(); 1751 pw.decreaseIndent(); 1752 1753 pw.print("mActiveDefaultNetwork: " + mActiveDefaultNetwork); 1754 if (mActiveDefaultNetwork != TYPE_NONE) { 1755 NetworkInfo activeNetworkInfo = getActiveNetworkInfo(); 1756 if (activeNetworkInfo != null) { 1757 pw.print(" " + activeNetworkInfo.getState() + 1758 "/" + activeNetworkInfo.getDetailedState()); 1759 } 1760 } 1761 pw.println(); 1762 1763 pw.println("mLegacyTypeTracker:"); 1764 pw.increaseIndent(); 1765 mLegacyTypeTracker.dump(pw); 1766 pw.decreaseIndent(); 1767 pw.println(); 1768 1769 synchronized (this) { 1770 pw.println("NetworkTransitionWakeLock is currently " + 1771 (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held."); 1772 pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy); 1773 } 1774 pw.println(); 1775 1776 mTethering.dump(fd, pw, args); 1777 1778 if (mInetLog != null) { 1779 pw.println(); 1780 pw.println("Inet condition reports:"); 1781 pw.increaseIndent(); 1782 for(int i = 0; i < mInetLog.size(); i++) { 1783 pw.println(mInetLog.get(i)); 1784 } 1785 pw.decreaseIndent(); 1786 } 1787 } 1788 1789 private boolean isLiveNetworkAgent(NetworkAgentInfo nai, String msg) { 1790 if (nai.network == null) return false; 1791 final NetworkAgentInfo officialNai; 1792 synchronized (mNetworkForNetId) { 1793 officialNai = mNetworkForNetId.get(nai.network.netId); 1794 } 1795 if (officialNai != null && officialNai.equals(nai)) return true; 1796 if (officialNai != null || VDBG) { 1797 loge(msg + " - isLiveNetworkAgent found mismatched netId: " + officialNai + 1798 " - " + nai); 1799 } 1800 return false; 1801 } 1802 1803 private boolean isRequest(NetworkRequest request) { 1804 return mNetworkRequests.get(request).isRequest; 1805 } 1806 1807 // must be stateless - things change under us. 1808 private class NetworkStateTrackerHandler extends Handler { 1809 public NetworkStateTrackerHandler(Looper looper) { 1810 super(looper); 1811 } 1812 1813 @Override 1814 public void handleMessage(Message msg) { 1815 NetworkInfo info; 1816 switch (msg.what) { 1817 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 1818 handleAsyncChannelHalfConnect(msg); 1819 break; 1820 } 1821 case AsyncChannel.CMD_CHANNEL_DISCONNECT: { 1822 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1823 if (nai != null) nai.asyncChannel.disconnect(); 1824 break; 1825 } 1826 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 1827 handleAsyncChannelDisconnected(msg); 1828 break; 1829 } 1830 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { 1831 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1832 if (nai == null) { 1833 loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); 1834 } else { 1835 updateCapabilities(nai, (NetworkCapabilities)msg.obj); 1836 } 1837 break; 1838 } 1839 case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { 1840 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1841 if (nai == null) { 1842 loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); 1843 } else { 1844 if (VDBG) { 1845 log("Update of LinkProperties for " + nai.name() + 1846 "; created=" + nai.created); 1847 } 1848 LinkProperties oldLp = nai.linkProperties; 1849 synchronized (nai) { 1850 nai.linkProperties = (LinkProperties)msg.obj; 1851 } 1852 if (nai.created) updateLinkProperties(nai, oldLp); 1853 } 1854 break; 1855 } 1856 case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { 1857 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1858 if (nai == null) { 1859 loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); 1860 break; 1861 } 1862 info = (NetworkInfo) msg.obj; 1863 updateNetworkInfo(nai, info); 1864 break; 1865 } 1866 case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { 1867 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1868 if (nai == null) { 1869 loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); 1870 break; 1871 } 1872 Integer score = (Integer) msg.obj; 1873 if (score != null) updateNetworkScore(nai, score.intValue()); 1874 break; 1875 } 1876 case NetworkAgent.EVENT_UID_RANGES_ADDED: { 1877 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1878 if (nai == null) { 1879 loge("EVENT_UID_RANGES_ADDED from unknown NetworkAgent"); 1880 break; 1881 } 1882 try { 1883 mNetd.addVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1884 } catch (Exception e) { 1885 // Never crash! 1886 loge("Exception in addVpnUidRanges: " + e); 1887 } 1888 break; 1889 } 1890 case NetworkAgent.EVENT_UID_RANGES_REMOVED: { 1891 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1892 if (nai == null) { 1893 loge("EVENT_UID_RANGES_REMOVED from unknown NetworkAgent"); 1894 break; 1895 } 1896 try { 1897 mNetd.removeVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); 1898 } catch (Exception e) { 1899 // Never crash! 1900 loge("Exception in removeVpnUidRanges: " + e); 1901 } 1902 break; 1903 } 1904 case NetworkAgent.EVENT_SET_EXPLICITLY_SELECTED: { 1905 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 1906 if (nai == null) { 1907 loge("EVENT_SET_EXPLICITLY_SELECTED from unknown NetworkAgent"); 1908 break; 1909 } 1910 if (nai.created && !nai.networkMisc.explicitlySelected) { 1911 loge("ERROR: created network explicitly selected."); 1912 } 1913 nai.networkMisc.explicitlySelected = true; 1914 break; 1915 } 1916 case NetworkMonitor.EVENT_NETWORK_TESTED: { 1917 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1918 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_VALIDATED")) { 1919 boolean valid = (msg.arg1 == NetworkMonitor.NETWORK_TEST_RESULT_VALID); 1920 if (valid) { 1921 if (DBG) log("Validated " + nai.name()); 1922 final boolean previouslyValidated = nai.validated; 1923 final int previousScore = nai.getCurrentScore(); 1924 nai.validated = true; 1925 rematchNetworkAndRequests(nai, !previouslyValidated); 1926 // If score has changed, rebroadcast to NetworkFactories. b/17726566 1927 if (nai.getCurrentScore() != previousScore) { 1928 sendUpdatedScoreToFactories(nai); 1929 } 1930 } 1931 updateInetCondition(nai, valid); 1932 // Let the NetworkAgent know the state of its network 1933 nai.asyncChannel.sendMessage( 1934 android.net.NetworkAgent.CMD_REPORT_NETWORK_STATUS, 1935 (valid ? NetworkAgent.VALID_NETWORK : NetworkAgent.INVALID_NETWORK), 1936 0, null); 1937 } 1938 break; 1939 } 1940 case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { 1941 NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; 1942 if (isLiveNetworkAgent(nai, "EVENT_NETWORK_LINGER_COMPLETE")) { 1943 handleLingerComplete(nai); 1944 } 1945 break; 1946 } 1947 case NetworkMonitor.EVENT_PROVISIONING_NOTIFICATION: { 1948 if (msg.arg1 == 0) { 1949 setProvNotificationVisibleIntent(false, msg.arg2, 0, null, null); 1950 } else { 1951 NetworkAgentInfo nai = null; 1952 synchronized (mNetworkForNetId) { 1953 nai = mNetworkForNetId.get(msg.arg2); 1954 } 1955 if (nai == null) { 1956 loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); 1957 break; 1958 } 1959 setProvNotificationVisibleIntent(true, msg.arg2, nai.networkInfo.getType(), 1960 nai.networkInfo.getExtraInfo(), (PendingIntent)msg.obj); 1961 } 1962 break; 1963 } 1964 case NetworkStateTracker.EVENT_STATE_CHANGED: { 1965 info = (NetworkInfo) msg.obj; 1966 NetworkInfo.State state = info.getState(); 1967 1968 if (VDBG || (state == NetworkInfo.State.CONNECTED) || 1969 (state == NetworkInfo.State.DISCONNECTED) || 1970 (state == NetworkInfo.State.SUSPENDED)) { 1971 log("ConnectivityChange for " + 1972 info.getTypeName() + ": " + 1973 state + "/" + info.getDetailedState()); 1974 } 1975 1976 EventLogTags.writeConnectivityStateChanged( 1977 info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); 1978 1979 if (info.isConnectedToProvisioningNetwork()) { 1980 /** 1981 * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING 1982 * for now its an in between network, its a network that 1983 * is actually a default network but we don't want it to be 1984 * announced as such to keep background applications from 1985 * trying to use it. It turns out that some still try so we 1986 * take the additional step of clearing any default routes 1987 * to the link that may have incorrectly setup by the lower 1988 * levels. 1989 */ 1990 LinkProperties lp = getLinkPropertiesForTypeInternal(info.getType()); 1991 if (DBG) { 1992 log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); 1993 } 1994 1995 // Clear any default routes setup by the radio so 1996 // any activity by applications trying to use this 1997 // connection will fail until the provisioning network 1998 // is enabled. 1999 /* 2000 for (RouteInfo r : lp.getRoutes()) { 2001 removeRoute(lp, r, TO_DEFAULT_TABLE, 2002 mNetTrackers[info.getType()].getNetwork().netId); 2003 } 2004 */ 2005 } else if (state == NetworkInfo.State.DISCONNECTED) { 2006 } else if (state == NetworkInfo.State.SUSPENDED) { 2007 } else if (state == NetworkInfo.State.CONNECTED) { 2008 // handleConnect(info); 2009 } 2010 notifyLockdownVpn(null); 2011 break; 2012 } 2013 case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { 2014 info = (NetworkInfo) msg.obj; 2015 // TODO: Temporary allowing network configuration 2016 // change not resetting sockets. 2017 // @see bug/4455071 2018 /* 2019 handleConnectivityChange(info.getType(), mCurrentLinkProperties[info.getType()], 2020 false); 2021 */ 2022 break; 2023 } 2024 } 2025 } 2026 } 2027 2028 private void handleAsyncChannelHalfConnect(Message msg) { 2029 AsyncChannel ac = (AsyncChannel) msg.obj; 2030 if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { 2031 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2032 if (VDBG) log("NetworkFactory connected"); 2033 // A network factory has connected. Send it all current NetworkRequests. 2034 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 2035 if (nri.isRequest == false) continue; 2036 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2037 ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, 2038 (nai != null ? nai.getCurrentScore() : 0), 0, nri.request); 2039 } 2040 } else { 2041 loge("Error connecting NetworkFactory"); 2042 mNetworkFactoryInfos.remove(msg.obj); 2043 } 2044 } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { 2045 if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 2046 if (VDBG) log("NetworkAgent connected"); 2047 // A network agent has requested a connection. Establish the connection. 2048 mNetworkAgentInfos.get(msg.replyTo).asyncChannel. 2049 sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 2050 } else { 2051 loge("Error connecting NetworkAgent"); 2052 NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); 2053 if (nai != null) { 2054 synchronized (mNetworkForNetId) { 2055 mNetworkForNetId.remove(nai.network.netId); 2056 } 2057 // Just in case. 2058 mLegacyTypeTracker.remove(nai); 2059 } 2060 } 2061 } 2062 } 2063 private void handleAsyncChannelDisconnected(Message msg) { 2064 NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); 2065 if (nai != null) { 2066 if (DBG) { 2067 log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); 2068 } 2069 // A network agent has disconnected. 2070 if (nai.created) { 2071 // Tell netd to clean up the configuration for this network 2072 // (routing rules, DNS, etc). 2073 try { 2074 mNetd.removeNetwork(nai.network.netId); 2075 } catch (Exception e) { 2076 loge("Exception removing network: " + e); 2077 } 2078 } 2079 // TODO - if we move the logic to the network agent (have them disconnect 2080 // because they lost all their requests or because their score isn't good) 2081 // then they would disconnect organically, report their new state and then 2082 // disconnect the channel. 2083 if (nai.networkInfo.isConnected()) { 2084 nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, 2085 null, null); 2086 } 2087 if (isDefaultNetwork(nai)) { 2088 mDefaultInetConditionPublished = 0; 2089 } 2090 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); 2091 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); 2092 mNetworkAgentInfos.remove(msg.replyTo); 2093 updateClat(null, nai.linkProperties, nai); 2094 mLegacyTypeTracker.remove(nai); 2095 synchronized (mNetworkForNetId) { 2096 mNetworkForNetId.remove(nai.network.netId); 2097 } 2098 // Since we've lost the network, go through all the requests that 2099 // it was satisfying and see if any other factory can satisfy them. 2100 // TODO: This logic may be better replaced with a call to rematchAllNetworksAndRequests 2101 final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); 2102 for (int i = 0; i < nai.networkRequests.size(); i++) { 2103 NetworkRequest request = nai.networkRequests.valueAt(i); 2104 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); 2105 if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { 2106 if (DBG) { 2107 log("Checking for replacement network to handle request " + request ); 2108 } 2109 mNetworkForRequestId.remove(request.requestId); 2110 sendUpdatedScoreToFactories(request, 0); 2111 NetworkAgentInfo alternative = null; 2112 for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { 2113 NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); 2114 if (existing.networkInfo.isConnected() && 2115 request.networkCapabilities.satisfiedByNetworkCapabilities( 2116 existing.networkCapabilities) && 2117 (alternative == null || 2118 alternative.getCurrentScore() < existing.getCurrentScore())) { 2119 alternative = existing; 2120 } 2121 } 2122 if (alternative != null) { 2123 if (DBG) log(" found replacement in " + alternative.name()); 2124 if (!toActivate.contains(alternative)) { 2125 toActivate.add(alternative); 2126 } 2127 } 2128 } 2129 } 2130 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 2131 removeDataActivityTracking(nai); 2132 mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; 2133 notifyLockdownVpn(nai); 2134 requestNetworkTransitionWakelock(nai.name()); 2135 } 2136 for (NetworkAgentInfo networkToActivate : toActivate) { 2137 networkToActivate.networkLingered.clear(); 2138 networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2139 rematchNetworkAndRequests(networkToActivate, false); 2140 } 2141 } 2142 } 2143 2144 private void handleRegisterNetworkRequest(Message msg) { 2145 final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); 2146 final NetworkCapabilities newCap = nri.request.networkCapabilities; 2147 int score = 0; 2148 2149 // Check for the best currently alive network that satisfies this request 2150 NetworkAgentInfo bestNetwork = null; 2151 for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { 2152 if (DBG) log("handleRegisterNetworkRequest checking " + network.name()); 2153 if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { 2154 if (DBG) log("apparently satisfied. currentScore=" + network.getCurrentScore()); 2155 if ((bestNetwork == null) || 2156 bestNetwork.getCurrentScore() < network.getCurrentScore()) { 2157 if (!nri.isRequest) { 2158 // Not setting bestNetwork here as a listening NetworkRequest may be 2159 // satisfied by multiple Networks. Instead the request is added to 2160 // each satisfying Network and notified about each. 2161 network.addRequest(nri.request); 2162 notifyNetworkCallback(network, nri); 2163 } else { 2164 bestNetwork = network; 2165 } 2166 } 2167 } 2168 } 2169 if (bestNetwork != null) { 2170 if (DBG) log("using " + bestNetwork.name()); 2171 if (bestNetwork.networkInfo.isConnected()) { 2172 // Cancel any lingering so the linger timeout doesn't teardown this network 2173 // even though we have a request for it. 2174 bestNetwork.networkLingered.clear(); 2175 bestNetwork.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 2176 } 2177 // TODO: This logic may be better replaced with a call to rematchNetworkAndRequests 2178 bestNetwork.addRequest(nri.request); 2179 mNetworkForRequestId.put(nri.request.requestId, bestNetwork); 2180 notifyNetworkCallback(bestNetwork, nri); 2181 score = bestNetwork.getCurrentScore(); 2182 if (nri.request.legacyType != TYPE_NONE) { 2183 mLegacyTypeTracker.add(nri.request.legacyType, bestNetwork); 2184 } 2185 } 2186 mNetworkRequests.put(nri.request, nri); 2187 if (nri.isRequest) { 2188 if (DBG) log("sending new NetworkRequest to factories"); 2189 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2190 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 2191 0, nri.request); 2192 } 2193 } 2194 } 2195 2196 private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) { 2197 NetworkRequestInfo nri = mNetworkRequests.get(request); 2198 if (nri != null) { 2199 if (Process.SYSTEM_UID != callingUid && nri.mUid != callingUid) { 2200 if (DBG) log("Attempt to release unowned NetworkRequest " + request); 2201 return; 2202 } 2203 if (DBG) log("releasing NetworkRequest " + request); 2204 nri.unlinkDeathRecipient(); 2205 mNetworkRequests.remove(request); 2206 if (nri.isRequest) { 2207 // Find all networks that are satisfying this request and remove the request 2208 // from their request lists. 2209 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2210 if (nai.networkRequests.get(nri.request.requestId) != null) { 2211 nai.networkRequests.remove(nri.request.requestId); 2212 if (DBG) { 2213 log(" Removing from current network " + nai.name() + 2214 ", leaving " + nai.networkRequests.size() + 2215 " requests."); 2216 } 2217 // check if has any requests remaining and if not, 2218 // disconnect (unless it's a VPN). 2219 boolean keep = nai.isVPN(); 2220 for (int i = 0; i < nai.networkRequests.size() && !keep; i++) { 2221 NetworkRequest r = nai.networkRequests.valueAt(i); 2222 if (isRequest(r)) keep = true; 2223 } 2224 if (!keep) { 2225 if (DBG) log("no live requests for " + nai.name() + "; disconnecting"); 2226 nai.asyncChannel.disconnect(); 2227 } 2228 } 2229 } 2230 2231 // Maintain the illusion. When this request arrived, we might have preteneded 2232 // that a network connected to serve it, even though the network was already 2233 // connected. Now that this request has gone away, we might have to pretend 2234 // that the network disconnected. LegacyTypeTracker will generate that 2235 // phatom disconnect for this type. 2236 NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); 2237 if (nai != null) { 2238 mNetworkForRequestId.remove(nri.request.requestId); 2239 if (nri.request.legacyType != TYPE_NONE) { 2240 mLegacyTypeTracker.remove(nri.request.legacyType, nai); 2241 } 2242 } 2243 2244 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 2245 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, 2246 nri.request); 2247 } 2248 } else { 2249 // listens don't have a singular affectedNetwork. Check all networks to see 2250 // if this listen request applies and remove it. 2251 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2252 nai.networkRequests.remove(nri.request.requestId); 2253 } 2254 } 2255 callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); 2256 } 2257 } 2258 2259 private class InternalHandler extends Handler { 2260 public InternalHandler(Looper looper) { 2261 super(looper); 2262 } 2263 2264 @Override 2265 public void handleMessage(Message msg) { 2266 NetworkInfo info; 2267 switch (msg.what) { 2268 case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: 2269 case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { 2270 String causedBy = null; 2271 synchronized (ConnectivityService.this) { 2272 if (msg.arg1 == mNetTransitionWakeLockSerialNumber && 2273 mNetTransitionWakeLock.isHeld()) { 2274 mNetTransitionWakeLock.release(); 2275 causedBy = mNetTransitionWakeLockCausedBy; 2276 } else { 2277 break; 2278 } 2279 } 2280 if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { 2281 log("Failed to find a new network - expiring NetTransition Wakelock"); 2282 } else { 2283 log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + 2284 " cleared because we found a replacement network"); 2285 } 2286 break; 2287 } 2288 case EVENT_APPLY_GLOBAL_HTTP_PROXY: { 2289 handleDeprecatedGlobalHttpProxy(); 2290 break; 2291 } 2292 case EVENT_SET_DEPENDENCY_MET: { 2293 boolean met = (msg.arg1 == ENABLED); 2294 handleSetDependencyMet(msg.arg2, met); 2295 break; 2296 } 2297 case EVENT_SEND_STICKY_BROADCAST_INTENT: { 2298 Intent intent = (Intent)msg.obj; 2299 sendStickyBroadcast(intent); 2300 break; 2301 } 2302 case EVENT_SET_POLICY_DATA_ENABLE: { 2303 final int networkType = msg.arg1; 2304 final boolean enabled = msg.arg2 == ENABLED; 2305 handleSetPolicyDataEnable(networkType, enabled); 2306 break; 2307 } 2308 case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { 2309 int tag = mEnableFailFastMobileDataTag.get(); 2310 if (msg.arg1 == tag) { 2311 MobileDataStateTracker mobileDst = 2312 (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; 2313 if (mobileDst != null) { 2314 mobileDst.setEnableFailFastMobileData(msg.arg2); 2315 } 2316 } else { 2317 log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 2318 + " != tag:" + tag); 2319 } 2320 break; 2321 } 2322 case EVENT_SAMPLE_INTERVAL_ELAPSED: { 2323 handleNetworkSamplingTimeout(); 2324 break; 2325 } 2326 case EVENT_PROXY_HAS_CHANGED: { 2327 handleApplyDefaultProxy((ProxyInfo)msg.obj); 2328 break; 2329 } 2330 case EVENT_REGISTER_NETWORK_FACTORY: { 2331 handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); 2332 break; 2333 } 2334 case EVENT_UNREGISTER_NETWORK_FACTORY: { 2335 handleUnregisterNetworkFactory((Messenger)msg.obj); 2336 break; 2337 } 2338 case EVENT_REGISTER_NETWORK_AGENT: { 2339 handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); 2340 break; 2341 } 2342 case EVENT_REGISTER_NETWORK_REQUEST: 2343 case EVENT_REGISTER_NETWORK_LISTENER: { 2344 handleRegisterNetworkRequest(msg); 2345 break; 2346 } 2347 case EVENT_RELEASE_NETWORK_REQUEST: { 2348 handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); 2349 break; 2350 } 2351 case EVENT_SYSTEM_READY: { 2352 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 2353 nai.networkMonitor.systemReady = true; 2354 } 2355 break; 2356 } 2357 } 2358 } 2359 } 2360 2361 // javadoc from interface 2362 public int tether(String iface) { 2363 ConnectivityManager.enforceTetherChangePermission(mContext); 2364 if (isTetheringSupported()) { 2365 return mTethering.tether(iface); 2366 } else { 2367 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2368 } 2369 } 2370 2371 // javadoc from interface 2372 public int untether(String iface) { 2373 ConnectivityManager.enforceTetherChangePermission(mContext); 2374 2375 if (isTetheringSupported()) { 2376 return mTethering.untether(iface); 2377 } else { 2378 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2379 } 2380 } 2381 2382 // javadoc from interface 2383 public int getLastTetherError(String iface) { 2384 enforceTetherAccessPermission(); 2385 2386 if (isTetheringSupported()) { 2387 return mTethering.getLastTetherError(iface); 2388 } else { 2389 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2390 } 2391 } 2392 2393 // TODO - proper iface API for selection by property, inspection, etc 2394 public String[] getTetherableUsbRegexs() { 2395 enforceTetherAccessPermission(); 2396 if (isTetheringSupported()) { 2397 return mTethering.getTetherableUsbRegexs(); 2398 } else { 2399 return new String[0]; 2400 } 2401 } 2402 2403 public String[] getTetherableWifiRegexs() { 2404 enforceTetherAccessPermission(); 2405 if (isTetheringSupported()) { 2406 return mTethering.getTetherableWifiRegexs(); 2407 } else { 2408 return new String[0]; 2409 } 2410 } 2411 2412 public String[] getTetherableBluetoothRegexs() { 2413 enforceTetherAccessPermission(); 2414 if (isTetheringSupported()) { 2415 return mTethering.getTetherableBluetoothRegexs(); 2416 } else { 2417 return new String[0]; 2418 } 2419 } 2420 2421 public int setUsbTethering(boolean enable) { 2422 ConnectivityManager.enforceTetherChangePermission(mContext); 2423 if (isTetheringSupported()) { 2424 return mTethering.setUsbTethering(enable); 2425 } else { 2426 return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; 2427 } 2428 } 2429 2430 // TODO - move iface listing, queries, etc to new module 2431 // javadoc from interface 2432 public String[] getTetherableIfaces() { 2433 enforceTetherAccessPermission(); 2434 return mTethering.getTetherableIfaces(); 2435 } 2436 2437 public String[] getTetheredIfaces() { 2438 enforceTetherAccessPermission(); 2439 return mTethering.getTetheredIfaces(); 2440 } 2441 2442 public String[] getTetheringErroredIfaces() { 2443 enforceTetherAccessPermission(); 2444 return mTethering.getErroredIfaces(); 2445 } 2446 2447 public String[] getTetheredDhcpRanges() { 2448 enforceConnectivityInternalPermission(); 2449 return mTethering.getTetheredDhcpRanges(); 2450 } 2451 2452 // if ro.tether.denied = true we default to no tethering 2453 // gservices could set the secure setting to 1 though to enable it on a build where it 2454 // had previously been turned off. 2455 public boolean isTetheringSupported() { 2456 enforceTetherAccessPermission(); 2457 int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); 2458 boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), 2459 Settings.Global.TETHER_SUPPORTED, defaultVal) != 0) 2460 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); 2461 return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || 2462 mTethering.getTetherableWifiRegexs().length != 0 || 2463 mTethering.getTetherableBluetoothRegexs().length != 0) && 2464 mTethering.getUpstreamIfaceTypes().length != 0); 2465 } 2466 2467 // Called when we lose the default network and have no replacement yet. 2468 // This will automatically be cleared after X seconds or a new default network 2469 // becomes CONNECTED, whichever happens first. The timer is started by the 2470 // first caller and not restarted by subsequent callers. 2471 private void requestNetworkTransitionWakelock(String forWhom) { 2472 int serialNum = 0; 2473 synchronized (this) { 2474 if (mNetTransitionWakeLock.isHeld()) return; 2475 serialNum = ++mNetTransitionWakeLockSerialNumber; 2476 mNetTransitionWakeLock.acquire(); 2477 mNetTransitionWakeLockCausedBy = forWhom; 2478 } 2479 mHandler.sendMessageDelayed(mHandler.obtainMessage( 2480 EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), 2481 mNetTransitionWakeLockTimeout); 2482 return; 2483 } 2484 2485 // 100 percent is full good, 0 is full bad. 2486 public void reportInetCondition(int networkType, int percentage) { 2487 if (percentage > 50) return; // don't handle good network reports 2488 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 2489 if (nai != null) reportBadNetwork(nai.network); 2490 } 2491 2492 public void reportBadNetwork(Network network) { 2493 enforceAccessPermission(); 2494 enforceInternetPermission(); 2495 2496 if (network == null) return; 2497 2498 final int uid = Binder.getCallingUid(); 2499 NetworkAgentInfo nai = null; 2500 synchronized (mNetworkForNetId) { 2501 nai = mNetworkForNetId.get(network.netId); 2502 } 2503 if (nai == null) return; 2504 if (DBG) log("reportBadNetwork(" + nai.name() + ") by " + uid); 2505 synchronized (nai) { 2506 // Validating an uncreated network could result in a call to rematchNetworkAndRequests() 2507 // which isn't meant to work on uncreated networks. 2508 if (!nai.created) return; 2509 2510 if (isNetworkBlocked(nai, uid)) return; 2511 2512 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_FORCE_REEVALUATION, uid); 2513 } 2514 } 2515 2516 public ProxyInfo getProxy() { 2517 // this information is already available as a world read/writable jvm property 2518 // so this API change wouldn't have a benifit. It also breaks the passing 2519 // of proxy info to all the JVMs. 2520 // enforceAccessPermission(); 2521 synchronized (mProxyLock) { 2522 ProxyInfo ret = mGlobalProxy; 2523 if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; 2524 return ret; 2525 } 2526 } 2527 2528 public void setGlobalProxy(ProxyInfo proxyProperties) { 2529 enforceConnectivityInternalPermission(); 2530 2531 synchronized (mProxyLock) { 2532 if (proxyProperties == mGlobalProxy) return; 2533 if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; 2534 if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; 2535 2536 String host = ""; 2537 int port = 0; 2538 String exclList = ""; 2539 String pacFileUrl = ""; 2540 if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || 2541 (proxyProperties.getPacFileUrl() != null))) { 2542 if (!proxyProperties.isValid()) { 2543 if (DBG) 2544 log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2545 return; 2546 } 2547 mGlobalProxy = new ProxyInfo(proxyProperties); 2548 host = mGlobalProxy.getHost(); 2549 port = mGlobalProxy.getPort(); 2550 exclList = mGlobalProxy.getExclusionListAsString(); 2551 if (proxyProperties.getPacFileUrl() != null) { 2552 pacFileUrl = proxyProperties.getPacFileUrl().toString(); 2553 } 2554 } else { 2555 mGlobalProxy = null; 2556 } 2557 ContentResolver res = mContext.getContentResolver(); 2558 final long token = Binder.clearCallingIdentity(); 2559 try { 2560 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); 2561 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); 2562 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 2563 exclList); 2564 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); 2565 } finally { 2566 Binder.restoreCallingIdentity(token); 2567 } 2568 2569 if (mGlobalProxy == null) { 2570 proxyProperties = mDefaultProxy; 2571 } 2572 sendProxyBroadcast(proxyProperties); 2573 } 2574 } 2575 2576 private void loadGlobalProxy() { 2577 ContentResolver res = mContext.getContentResolver(); 2578 String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); 2579 int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); 2580 String exclList = Settings.Global.getString(res, 2581 Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); 2582 String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); 2583 if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { 2584 ProxyInfo proxyProperties; 2585 if (!TextUtils.isEmpty(pacFileUrl)) { 2586 proxyProperties = new ProxyInfo(pacFileUrl); 2587 } else { 2588 proxyProperties = new ProxyInfo(host, port, exclList); 2589 } 2590 if (!proxyProperties.isValid()) { 2591 if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2592 return; 2593 } 2594 2595 synchronized (mProxyLock) { 2596 mGlobalProxy = proxyProperties; 2597 } 2598 } 2599 } 2600 2601 public ProxyInfo getGlobalProxy() { 2602 // this information is already available as a world read/writable jvm property 2603 // so this API change wouldn't have a benifit. It also breaks the passing 2604 // of proxy info to all the JVMs. 2605 // enforceAccessPermission(); 2606 synchronized (mProxyLock) { 2607 return mGlobalProxy; 2608 } 2609 } 2610 2611 private void handleApplyDefaultProxy(ProxyInfo proxy) { 2612 if (proxy != null && TextUtils.isEmpty(proxy.getHost()) 2613 && (proxy.getPacFileUrl() == null)) { 2614 proxy = null; 2615 } 2616 synchronized (mProxyLock) { 2617 if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; 2618 if (mDefaultProxy == proxy) return; // catches repeated nulls 2619 if (proxy != null && !proxy.isValid()) { 2620 if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); 2621 return; 2622 } 2623 2624 // This call could be coming from the PacManager, containing the port of the local 2625 // proxy. If this new proxy matches the global proxy then copy this proxy to the 2626 // global (to get the correct local port), and send a broadcast. 2627 // TODO: Switch PacManager to have its own message to send back rather than 2628 // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. 2629 if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) 2630 && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { 2631 mGlobalProxy = proxy; 2632 sendProxyBroadcast(mGlobalProxy); 2633 return; 2634 } 2635 mDefaultProxy = proxy; 2636 2637 if (mGlobalProxy != null) return; 2638 if (!mDefaultProxyDisabled) { 2639 sendProxyBroadcast(proxy); 2640 } 2641 } 2642 } 2643 2644 private void handleDeprecatedGlobalHttpProxy() { 2645 String proxy = Settings.Global.getString(mContext.getContentResolver(), 2646 Settings.Global.HTTP_PROXY); 2647 if (!TextUtils.isEmpty(proxy)) { 2648 String data[] = proxy.split(":"); 2649 if (data.length == 0) { 2650 return; 2651 } 2652 2653 String proxyHost = data[0]; 2654 int proxyPort = 8080; 2655 if (data.length > 1) { 2656 try { 2657 proxyPort = Integer.parseInt(data[1]); 2658 } catch (NumberFormatException e) { 2659 return; 2660 } 2661 } 2662 ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); 2663 setGlobalProxy(p); 2664 } 2665 } 2666 2667 private void sendProxyBroadcast(ProxyInfo proxy) { 2668 if (proxy == null) proxy = new ProxyInfo("", 0, ""); 2669 if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; 2670 if (DBG) log("sending Proxy Broadcast for " + proxy); 2671 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); 2672 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | 2673 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2674 intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); 2675 final long ident = Binder.clearCallingIdentity(); 2676 try { 2677 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2678 } finally { 2679 Binder.restoreCallingIdentity(ident); 2680 } 2681 } 2682 2683 private static class SettingsObserver extends ContentObserver { 2684 private int mWhat; 2685 private Handler mHandler; 2686 SettingsObserver(Handler handler, int what) { 2687 super(handler); 2688 mHandler = handler; 2689 mWhat = what; 2690 } 2691 2692 void observe(Context context) { 2693 ContentResolver resolver = context.getContentResolver(); 2694 resolver.registerContentObserver(Settings.Global.getUriFor( 2695 Settings.Global.HTTP_PROXY), false, this); 2696 } 2697 2698 @Override 2699 public void onChange(boolean selfChange) { 2700 mHandler.obtainMessage(mWhat).sendToTarget(); 2701 } 2702 } 2703 2704 private static void log(String s) { 2705 Slog.d(TAG, s); 2706 } 2707 2708 private static void loge(String s) { 2709 Slog.e(TAG, s); 2710 } 2711 2712 int convertFeatureToNetworkType(int networkType, String feature) { 2713 int usedNetworkType = networkType; 2714 2715 if(networkType == ConnectivityManager.TYPE_MOBILE) { 2716 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { 2717 usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; 2718 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { 2719 usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; 2720 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || 2721 TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { 2722 usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; 2723 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { 2724 usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; 2725 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { 2726 usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; 2727 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { 2728 usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; 2729 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { 2730 usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; 2731 } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { 2732 usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; 2733 } else { 2734 Slog.e(TAG, "Can't match any mobile netTracker!"); 2735 } 2736 } else if (networkType == ConnectivityManager.TYPE_WIFI) { 2737 if (TextUtils.equals(feature, "p2p")) { 2738 usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; 2739 } else { 2740 Slog.e(TAG, "Can't match any wifi netTracker!"); 2741 } 2742 } else { 2743 Slog.e(TAG, "Unexpected network type"); 2744 } 2745 return usedNetworkType; 2746 } 2747 2748 private static <T> T checkNotNull(T value, String message) { 2749 if (value == null) { 2750 throw new NullPointerException(message); 2751 } 2752 return value; 2753 } 2754 2755 /** 2756 * Prepare for a VPN application. This method is used by VpnDialogs 2757 * and not available in ConnectivityManager. Permissions are checked 2758 * in Vpn class. 2759 * @hide 2760 */ 2761 @Override 2762 public boolean prepareVpn(String oldPackage, String newPackage) { 2763 throwIfLockdownEnabled(); 2764 int user = UserHandle.getUserId(Binder.getCallingUid()); 2765 synchronized(mVpns) { 2766 return mVpns.get(user).prepare(oldPackage, newPackage); 2767 } 2768 } 2769 2770 /** 2771 * Set whether the current VPN package has the ability to launch VPNs without 2772 * user intervention. This method is used by system UIs and not available 2773 * in ConnectivityManager. Permissions are checked in Vpn class. 2774 * @hide 2775 */ 2776 @Override 2777 public void setVpnPackageAuthorization(boolean authorized) { 2778 int user = UserHandle.getUserId(Binder.getCallingUid()); 2779 synchronized(mVpns) { 2780 mVpns.get(user).setPackageAuthorization(authorized); 2781 } 2782 } 2783 2784 /** 2785 * Configure a TUN interface and return its file descriptor. Parameters 2786 * are encoded and opaque to this class. This method is used by VpnBuilder 2787 * and not available in ConnectivityManager. Permissions are checked in 2788 * Vpn class. 2789 * @hide 2790 */ 2791 @Override 2792 public ParcelFileDescriptor establishVpn(VpnConfig config) { 2793 throwIfLockdownEnabled(); 2794 int user = UserHandle.getUserId(Binder.getCallingUid()); 2795 synchronized(mVpns) { 2796 return mVpns.get(user).establish(config); 2797 } 2798 } 2799 2800 /** 2801 * Start legacy VPN, controlling native daemons as needed. Creates a 2802 * secondary thread to perform connection work, returning quickly. 2803 */ 2804 @Override 2805 public void startLegacyVpn(VpnProfile profile) { 2806 throwIfLockdownEnabled(); 2807 final LinkProperties egress = getActiveLinkProperties(); 2808 if (egress == null) { 2809 throw new IllegalStateException("Missing active network connection"); 2810 } 2811 int user = UserHandle.getUserId(Binder.getCallingUid()); 2812 synchronized(mVpns) { 2813 mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); 2814 } 2815 } 2816 2817 /** 2818 * Return the information of the ongoing legacy VPN. This method is used 2819 * by VpnSettings and not available in ConnectivityManager. Permissions 2820 * are checked in Vpn class. 2821 * @hide 2822 */ 2823 @Override 2824 public LegacyVpnInfo getLegacyVpnInfo() { 2825 throwIfLockdownEnabled(); 2826 int user = UserHandle.getUserId(Binder.getCallingUid()); 2827 synchronized(mVpns) { 2828 return mVpns.get(user).getLegacyVpnInfo(); 2829 } 2830 } 2831 2832 /** 2833 * Returns the information of the ongoing VPN. This method is used by VpnDialogs and 2834 * not available in ConnectivityManager. 2835 * Permissions are checked in Vpn class. 2836 * @hide 2837 */ 2838 @Override 2839 public VpnConfig getVpnConfig() { 2840 int user = UserHandle.getUserId(Binder.getCallingUid()); 2841 synchronized(mVpns) { 2842 return mVpns.get(user).getVpnConfig(); 2843 } 2844 } 2845 2846 @Override 2847 public boolean updateLockdownVpn() { 2848 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 2849 Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); 2850 return false; 2851 } 2852 2853 // Tear down existing lockdown if profile was removed 2854 mLockdownEnabled = LockdownVpnTracker.isEnabled(); 2855 if (mLockdownEnabled) { 2856 if (!mKeyStore.isUnlocked()) { 2857 Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); 2858 return false; 2859 } 2860 2861 final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); 2862 final VpnProfile profile = VpnProfile.decode( 2863 profileName, mKeyStore.get(Credentials.VPN + profileName)); 2864 int user = UserHandle.getUserId(Binder.getCallingUid()); 2865 synchronized(mVpns) { 2866 setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), 2867 profile)); 2868 } 2869 } else { 2870 setLockdownTracker(null); 2871 } 2872 2873 return true; 2874 } 2875 2876 /** 2877 * Internally set new {@link LockdownVpnTracker}, shutting down any existing 2878 * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. 2879 */ 2880 private void setLockdownTracker(LockdownVpnTracker tracker) { 2881 // Shutdown any existing tracker 2882 final LockdownVpnTracker existing = mLockdownTracker; 2883 mLockdownTracker = null; 2884 if (existing != null) { 2885 existing.shutdown(); 2886 } 2887 2888 try { 2889 if (tracker != null) { 2890 mNetd.setFirewallEnabled(true); 2891 mNetd.setFirewallInterfaceRule("lo", true); 2892 mLockdownTracker = tracker; 2893 mLockdownTracker.init(); 2894 } else { 2895 mNetd.setFirewallEnabled(false); 2896 } 2897 } catch (RemoteException e) { 2898 // ignored; NMS lives inside system_server 2899 } 2900 } 2901 2902 private void throwIfLockdownEnabled() { 2903 if (mLockdownEnabled) { 2904 throw new IllegalStateException("Unavailable in lockdown mode"); 2905 } 2906 } 2907 2908 public void supplyMessenger(int networkType, Messenger messenger) { 2909 enforceConnectivityInternalPermission(); 2910 2911 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 2912 mNetTrackers[networkType].supplyMessenger(messenger); 2913 } 2914 } 2915 2916 public int findConnectionTypeForIface(String iface) { 2917 enforceConnectivityInternalPermission(); 2918 2919 if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; 2920 2921 synchronized(mNetworkForNetId) { 2922 for (int i = 0; i < mNetworkForNetId.size(); i++) { 2923 NetworkAgentInfo nai = mNetworkForNetId.valueAt(i); 2924 LinkProperties lp = nai.linkProperties; 2925 if (lp != null && iface.equals(lp.getInterfaceName()) && nai.networkInfo != null) { 2926 return nai.networkInfo.getType(); 2927 } 2928 } 2929 } 2930 return ConnectivityManager.TYPE_NONE; 2931 } 2932 2933 /** 2934 * Have mobile data fail fast if enabled. 2935 * 2936 * @param enabled DctConstants.ENABLED/DISABLED 2937 */ 2938 private void setEnableFailFastMobileData(int enabled) { 2939 int tag; 2940 2941 if (enabled == DctConstants.ENABLED) { 2942 tag = mEnableFailFastMobileDataTag.incrementAndGet(); 2943 } else { 2944 tag = mEnableFailFastMobileDataTag.get(); 2945 } 2946 mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, 2947 enabled)); 2948 } 2949 2950 @Override 2951 public int checkMobileProvisioning(int suggestedTimeOutMs) { 2952 // TODO: Remove? Any reason to trigger a provisioning check? 2953 return -1; 2954 } 2955 2956 private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; 2957 private volatile boolean mIsNotificationVisible = false; 2958 2959 private void setProvNotificationVisible(boolean visible, int networkType, String action) { 2960 if (DBG) { 2961 log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType 2962 + " action=" + action); 2963 } 2964 Intent intent = new Intent(action); 2965 PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); 2966 // Concatenate the range of types onto the range of NetIDs. 2967 int id = MAX_NET_ID + 1 + (networkType - ConnectivityManager.TYPE_NONE); 2968 setProvNotificationVisibleIntent(visible, id, networkType, null, pendingIntent); 2969 } 2970 2971 /** 2972 * Show or hide network provisioning notificaitons. 2973 * 2974 * @param id an identifier that uniquely identifies this notification. This must match 2975 * between show and hide calls. We use the NetID value but for legacy callers 2976 * we concatenate the range of types with the range of NetIDs. 2977 */ 2978 private void setProvNotificationVisibleIntent(boolean visible, int id, int networkType, 2979 String extraInfo, PendingIntent intent) { 2980 if (DBG) { 2981 log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + 2982 networkType + " extraInfo=" + extraInfo); 2983 } 2984 2985 Resources r = Resources.getSystem(); 2986 NotificationManager notificationManager = (NotificationManager) mContext 2987 .getSystemService(Context.NOTIFICATION_SERVICE); 2988 2989 if (visible) { 2990 CharSequence title; 2991 CharSequence details; 2992 int icon; 2993 Notification notification = new Notification(); 2994 switch (networkType) { 2995 case ConnectivityManager.TYPE_WIFI: 2996 title = r.getString(R.string.wifi_available_sign_in, 0); 2997 details = r.getString(R.string.network_available_sign_in_detailed, 2998 extraInfo); 2999 icon = R.drawable.stat_notify_wifi_in_range; 3000 break; 3001 case ConnectivityManager.TYPE_MOBILE: 3002 case ConnectivityManager.TYPE_MOBILE_HIPRI: 3003 title = r.getString(R.string.network_available_sign_in, 0); 3004 // TODO: Change this to pull from NetworkInfo once a printable 3005 // name has been added to it 3006 details = mTelephonyManager.getNetworkOperatorName(); 3007 icon = R.drawable.stat_notify_rssi_in_range; 3008 break; 3009 default: 3010 title = r.getString(R.string.network_available_sign_in, 0); 3011 details = r.getString(R.string.network_available_sign_in_detailed, 3012 extraInfo); 3013 icon = R.drawable.stat_notify_rssi_in_range; 3014 break; 3015 } 3016 3017 notification.when = 0; 3018 notification.icon = icon; 3019 notification.flags = Notification.FLAG_AUTO_CANCEL; 3020 notification.tickerText = title; 3021 notification.color = mContext.getResources().getColor( 3022 com.android.internal.R.color.system_notification_accent_color); 3023 notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); 3024 notification.contentIntent = intent; 3025 3026 try { 3027 notificationManager.notify(NOTIFICATION_ID, id, notification); 3028 } catch (NullPointerException npe) { 3029 loge("setNotificaitionVisible: visible notificationManager npe=" + npe); 3030 npe.printStackTrace(); 3031 } 3032 } else { 3033 try { 3034 notificationManager.cancel(NOTIFICATION_ID, id); 3035 } catch (NullPointerException npe) { 3036 loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); 3037 npe.printStackTrace(); 3038 } 3039 } 3040 mIsNotificationVisible = visible; 3041 } 3042 3043 /** Location to an updatable file listing carrier provisioning urls. 3044 * An example: 3045 * 3046 * <?xml version="1.0" encoding="utf-8"?> 3047 * <provisioningUrls> 3048 * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> 3049 * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> 3050 * </provisioningUrls> 3051 */ 3052 private static final String PROVISIONING_URL_PATH = 3053 "/data/misc/radio/provisioning_urls.xml"; 3054 private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); 3055 3056 /** XML tag for root element. */ 3057 private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; 3058 /** XML tag for individual url */ 3059 private static final String TAG_PROVISIONING_URL = "provisioningUrl"; 3060 /** XML tag for redirected url */ 3061 private static final String TAG_REDIRECTED_URL = "redirectedUrl"; 3062 /** XML attribute for mcc */ 3063 private static final String ATTR_MCC = "mcc"; 3064 /** XML attribute for mnc */ 3065 private static final String ATTR_MNC = "mnc"; 3066 3067 private static final int REDIRECTED_PROVISIONING = 1; 3068 private static final int PROVISIONING = 2; 3069 3070 private String getProvisioningUrlBaseFromFile(int type) { 3071 FileReader fileReader = null; 3072 XmlPullParser parser = null; 3073 Configuration config = mContext.getResources().getConfiguration(); 3074 String tagType; 3075 3076 switch (type) { 3077 case PROVISIONING: 3078 tagType = TAG_PROVISIONING_URL; 3079 break; 3080 case REDIRECTED_PROVISIONING: 3081 tagType = TAG_REDIRECTED_URL; 3082 break; 3083 default: 3084 throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + 3085 type); 3086 } 3087 3088 try { 3089 fileReader = new FileReader(mProvisioningUrlFile); 3090 parser = Xml.newPullParser(); 3091 parser.setInput(fileReader); 3092 XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); 3093 3094 while (true) { 3095 XmlUtils.nextElement(parser); 3096 3097 String element = parser.getName(); 3098 if (element == null) break; 3099 3100 if (element.equals(tagType)) { 3101 String mcc = parser.getAttributeValue(null, ATTR_MCC); 3102 try { 3103 if (mcc != null && Integer.parseInt(mcc) == config.mcc) { 3104 String mnc = parser.getAttributeValue(null, ATTR_MNC); 3105 if (mnc != null && Integer.parseInt(mnc) == config.mnc) { 3106 parser.next(); 3107 if (parser.getEventType() == XmlPullParser.TEXT) { 3108 return parser.getText(); 3109 } 3110 } 3111 } 3112 } catch (NumberFormatException e) { 3113 loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); 3114 } 3115 } 3116 } 3117 return null; 3118 } catch (FileNotFoundException e) { 3119 loge("Carrier Provisioning Urls file not found"); 3120 } catch (XmlPullParserException e) { 3121 loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); 3122 } catch (IOException e) { 3123 loge("I/O exception reading Carrier Provisioning Urls file: " + e); 3124 } finally { 3125 if (fileReader != null) { 3126 try { 3127 fileReader.close(); 3128 } catch (IOException e) {} 3129 } 3130 } 3131 return null; 3132 } 3133 3134 @Override 3135 public String getMobileRedirectedProvisioningUrl() { 3136 enforceConnectivityInternalPermission(); 3137 String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); 3138 if (TextUtils.isEmpty(url)) { 3139 url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); 3140 } 3141 return url; 3142 } 3143 3144 @Override 3145 public String getMobileProvisioningUrl() { 3146 enforceConnectivityInternalPermission(); 3147 String url = getProvisioningUrlBaseFromFile(PROVISIONING); 3148 if (TextUtils.isEmpty(url)) { 3149 url = mContext.getResources().getString(R.string.mobile_provisioning_url); 3150 log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); 3151 } else { 3152 log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); 3153 } 3154 // populate the iccid, imei and phone number in the provisioning url. 3155 if (!TextUtils.isEmpty(url)) { 3156 String phoneNumber = mTelephonyManager.getLine1Number(); 3157 if (TextUtils.isEmpty(phoneNumber)) { 3158 phoneNumber = "0000000000"; 3159 } 3160 url = String.format(url, 3161 mTelephonyManager.getSimSerialNumber() /* ICCID */, 3162 mTelephonyManager.getDeviceId() /* IMEI */, 3163 phoneNumber /* Phone numer */); 3164 } 3165 3166 return url; 3167 } 3168 3169 @Override 3170 public void setProvisioningNotificationVisible(boolean visible, int networkType, 3171 String action) { 3172 enforceConnectivityInternalPermission(); 3173 final long ident = Binder.clearCallingIdentity(); 3174 try { 3175 setProvNotificationVisible(visible, networkType, action); 3176 } finally { 3177 Binder.restoreCallingIdentity(ident); 3178 } 3179 } 3180 3181 @Override 3182 public void setAirplaneMode(boolean enable) { 3183 enforceConnectivityInternalPermission(); 3184 final long ident = Binder.clearCallingIdentity(); 3185 try { 3186 final ContentResolver cr = mContext.getContentResolver(); 3187 Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); 3188 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 3189 intent.putExtra("state", enable); 3190 mContext.sendBroadcast(intent); 3191 } finally { 3192 Binder.restoreCallingIdentity(ident); 3193 } 3194 } 3195 3196 private void onUserStart(int userId) { 3197 synchronized(mVpns) { 3198 Vpn userVpn = mVpns.get(userId); 3199 if (userVpn != null) { 3200 loge("Starting user already has a VPN"); 3201 return; 3202 } 3203 userVpn = new Vpn(mHandler.getLooper(), mContext, mNetd, this, userId); 3204 mVpns.put(userId, userVpn); 3205 } 3206 } 3207 3208 private void onUserStop(int userId) { 3209 synchronized(mVpns) { 3210 Vpn userVpn = mVpns.get(userId); 3211 if (userVpn == null) { 3212 loge("Stopping user has no VPN"); 3213 return; 3214 } 3215 mVpns.delete(userId); 3216 } 3217 } 3218 3219 private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { 3220 @Override 3221 public void onReceive(Context context, Intent intent) { 3222 final String action = intent.getAction(); 3223 final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3224 if (userId == UserHandle.USER_NULL) return; 3225 3226 if (Intent.ACTION_USER_STARTING.equals(action)) { 3227 onUserStart(userId); 3228 } else if (Intent.ACTION_USER_STOPPING.equals(action)) { 3229 onUserStop(userId); 3230 } 3231 } 3232 }; 3233 3234 @Override 3235 public LinkQualityInfo getLinkQualityInfo(int networkType) { 3236 enforceAccessPermission(); 3237 if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { 3238 return mNetTrackers[networkType].getLinkQualityInfo(); 3239 } else { 3240 return null; 3241 } 3242 } 3243 3244 @Override 3245 public LinkQualityInfo getActiveLinkQualityInfo() { 3246 enforceAccessPermission(); 3247 if (isNetworkTypeValid(mActiveDefaultNetwork) && 3248 mNetTrackers[mActiveDefaultNetwork] != null) { 3249 return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); 3250 } else { 3251 return null; 3252 } 3253 } 3254 3255 @Override 3256 public LinkQualityInfo[] getAllLinkQualityInfo() { 3257 enforceAccessPermission(); 3258 final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); 3259 for (NetworkStateTracker tracker : mNetTrackers) { 3260 if (tracker != null) { 3261 LinkQualityInfo li = tracker.getLinkQualityInfo(); 3262 if (li != null) { 3263 result.add(li); 3264 } 3265 } 3266 } 3267 3268 return result.toArray(new LinkQualityInfo[result.size()]); 3269 } 3270 3271 /* Infrastructure for network sampling */ 3272 3273 private void handleNetworkSamplingTimeout() { 3274 3275 if (SAMPLE_DBG) log("Sampling interval elapsed, updating statistics .."); 3276 3277 // initialize list of interfaces .. 3278 Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = 3279 new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); 3280 for (NetworkStateTracker tracker : mNetTrackers) { 3281 if (tracker != null) { 3282 String ifaceName = tracker.getNetworkInterfaceName(); 3283 if (ifaceName != null) { 3284 mapIfaceToSample.put(ifaceName, null); 3285 } 3286 } 3287 } 3288 3289 // Read samples for all interfaces 3290 SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); 3291 3292 // process samples for all networks 3293 for (NetworkStateTracker tracker : mNetTrackers) { 3294 if (tracker != null) { 3295 String ifaceName = tracker.getNetworkInterfaceName(); 3296 SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); 3297 if (ss != null) { 3298 // end the previous sampling cycle 3299 tracker.stopSampling(ss); 3300 // start a new sampling cycle .. 3301 tracker.startSampling(ss); 3302 } 3303 } 3304 } 3305 3306 if (SAMPLE_DBG) log("Done."); 3307 3308 int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), 3309 Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, 3310 DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); 3311 3312 if (SAMPLE_DBG) { 3313 log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); 3314 } 3315 3316 setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); 3317 } 3318 3319 /** 3320 * Sets a network sampling alarm. 3321 */ 3322 void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { 3323 long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; 3324 int alarmType; 3325 if (Resources.getSystem().getBoolean( 3326 R.bool.config_networkSamplingWakesDevice)) { 3327 alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP; 3328 } else { 3329 alarmType = AlarmManager.ELAPSED_REALTIME; 3330 } 3331 mAlarmManager.set(alarmType, wakeupTime, intent); 3332 } 3333 3334 private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = 3335 new HashMap<Messenger, NetworkFactoryInfo>(); 3336 private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = 3337 new HashMap<NetworkRequest, NetworkRequestInfo>(); 3338 3339 private static class NetworkFactoryInfo { 3340 public final String name; 3341 public final Messenger messenger; 3342 public final AsyncChannel asyncChannel; 3343 3344 public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { 3345 this.name = name; 3346 this.messenger = messenger; 3347 this.asyncChannel = asyncChannel; 3348 } 3349 } 3350 3351 /** 3352 * Tracks info about the requester. 3353 * Also used to notice when the calling process dies so we can self-expire 3354 */ 3355 private class NetworkRequestInfo implements IBinder.DeathRecipient { 3356 static final boolean REQUEST = true; 3357 static final boolean LISTEN = false; 3358 3359 final NetworkRequest request; 3360 IBinder mBinder; 3361 final int mPid; 3362 final int mUid; 3363 final Messenger messenger; 3364 final boolean isRequest; 3365 3366 NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { 3367 super(); 3368 messenger = m; 3369 request = r; 3370 mBinder = binder; 3371 mPid = getCallingPid(); 3372 mUid = getCallingUid(); 3373 this.isRequest = isRequest; 3374 3375 try { 3376 mBinder.linkToDeath(this, 0); 3377 } catch (RemoteException e) { 3378 binderDied(); 3379 } 3380 } 3381 3382 void unlinkDeathRecipient() { 3383 mBinder.unlinkToDeath(this, 0); 3384 } 3385 3386 public void binderDied() { 3387 log("ConnectivityService NetworkRequestInfo binderDied(" + 3388 request + ", " + mBinder + ")"); 3389 releaseNetworkRequest(request); 3390 } 3391 3392 public String toString() { 3393 return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + 3394 mPid + " for " + request; 3395 } 3396 } 3397 3398 @Override 3399 public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, 3400 Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { 3401 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) 3402 == false) { 3403 enforceConnectivityInternalPermission(); 3404 } else { 3405 enforceChangePermission(); 3406 } 3407 3408 networkCapabilities = new NetworkCapabilities(networkCapabilities); 3409 3410 // if UID is restricted, don't allow them to bring up metered APNs 3411 if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED) 3412 == false) { 3413 final int uidRules; 3414 final int uid = Binder.getCallingUid(); 3415 synchronized(mRulesLock) { 3416 uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); 3417 } 3418 if ((uidRules & RULE_REJECT_METERED) != 0) { 3419 // we could silently fail or we can filter the available nets to only give 3420 // them those they have access to. Chose the more useful 3421 networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 3422 } 3423 } 3424 3425 if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { 3426 throw new IllegalArgumentException("Bad timeout specified"); 3427 } 3428 NetworkRequest networkRequest = new NetworkRequest(networkCapabilities, legacyType, 3429 nextNetworkRequestId()); 3430 if (DBG) log("requestNetwork for " + networkRequest); 3431 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 3432 NetworkRequestInfo.REQUEST); 3433 3434 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); 3435 if (timeoutMs > 0) { 3436 mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, 3437 nri), timeoutMs); 3438 } 3439 return networkRequest; 3440 } 3441 3442 @Override 3443 public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, 3444 PendingIntent operation) { 3445 // TODO 3446 return null; 3447 } 3448 3449 @Override 3450 public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, 3451 Messenger messenger, IBinder binder) { 3452 enforceAccessPermission(); 3453 3454 NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( 3455 networkCapabilities), TYPE_NONE, nextNetworkRequestId()); 3456 if (DBG) log("listenForNetwork for " + networkRequest); 3457 NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, 3458 NetworkRequestInfo.LISTEN); 3459 3460 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); 3461 return networkRequest; 3462 } 3463 3464 @Override 3465 public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, 3466 PendingIntent operation) { 3467 } 3468 3469 @Override 3470 public void releaseNetworkRequest(NetworkRequest networkRequest) { 3471 mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), 3472 0, networkRequest)); 3473 } 3474 3475 @Override 3476 public void registerNetworkFactory(Messenger messenger, String name) { 3477 enforceConnectivityInternalPermission(); 3478 NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); 3479 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); 3480 } 3481 3482 private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { 3483 if (DBG) log("Got NetworkFactory Messenger for " + nfi.name); 3484 mNetworkFactoryInfos.put(nfi.messenger, nfi); 3485 nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); 3486 } 3487 3488 @Override 3489 public void unregisterNetworkFactory(Messenger messenger) { 3490 enforceConnectivityInternalPermission(); 3491 mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); 3492 } 3493 3494 private void handleUnregisterNetworkFactory(Messenger messenger) { 3495 NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); 3496 if (nfi == null) { 3497 loge("Failed to find Messenger in unregisterNetworkFactory"); 3498 return; 3499 } 3500 if (DBG) log("unregisterNetworkFactory for " + nfi.name); 3501 } 3502 3503 /** 3504 * NetworkAgentInfo supporting a request by requestId. 3505 * These have already been vetted (their Capabilities satisfy the request) 3506 * and the are the highest scored network available. 3507 * the are keyed off the Requests requestId. 3508 */ 3509 private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = 3510 new SparseArray<NetworkAgentInfo>(); 3511 3512 private final SparseArray<NetworkAgentInfo> mNetworkForNetId = 3513 new SparseArray<NetworkAgentInfo>(); 3514 3515 // NetworkAgentInfo keyed off its connecting messenger 3516 // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays 3517 private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = 3518 new HashMap<Messenger, NetworkAgentInfo>(); 3519 3520 private final NetworkRequest mDefaultRequest; 3521 3522 private boolean isDefaultNetwork(NetworkAgentInfo nai) { 3523 return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; 3524 } 3525 3526 public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, 3527 LinkProperties linkProperties, NetworkCapabilities networkCapabilities, 3528 int currentScore, NetworkMisc networkMisc) { 3529 enforceConnectivityInternalPermission(); 3530 3531 NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), 3532 new NetworkInfo(networkInfo), new LinkProperties(linkProperties), 3533 new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler, 3534 new NetworkMisc(networkMisc)); 3535 synchronized (this) { 3536 nai.networkMonitor.systemReady = mSystemReady; 3537 } 3538 if (DBG) log("registerNetworkAgent " + nai); 3539 mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); 3540 } 3541 3542 private void handleRegisterNetworkAgent(NetworkAgentInfo na) { 3543 if (VDBG) log("Got NetworkAgent Messenger"); 3544 mNetworkAgentInfos.put(na.messenger, na); 3545 assignNextNetId(na); 3546 na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); 3547 NetworkInfo networkInfo = na.networkInfo; 3548 na.networkInfo = null; 3549 updateNetworkInfo(na, networkInfo); 3550 } 3551 3552 private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { 3553 LinkProperties newLp = networkAgent.linkProperties; 3554 int netId = networkAgent.network.netId; 3555 3556 // The NetworkAgentInfo does not know whether clatd is running on its network or not. Before 3557 // we do anything else, make sure its LinkProperties are accurate. 3558 if (networkAgent.clatd != null) { 3559 networkAgent.clatd.fixupLinkProperties(oldLp); 3560 } 3561 3562 updateInterfaces(newLp, oldLp, netId); 3563 updateMtu(newLp, oldLp); 3564 // TODO - figure out what to do for clat 3565// for (LinkProperties lp : newLp.getStackedLinks()) { 3566// updateMtu(lp, null); 3567// } 3568 updateTcpBufferSizes(networkAgent); 3569 final boolean flushDns = updateRoutes(newLp, oldLp, netId); 3570 updateDnses(newLp, oldLp, netId, flushDns); 3571 updateClat(newLp, oldLp, networkAgent); 3572 if (isDefaultNetwork(networkAgent)) handleApplyDefaultProxy(newLp.getHttpProxy()); 3573 // TODO - move this check to cover the whole function 3574 if (!Objects.equals(newLp, oldLp)) { 3575 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_IP_CHANGED); 3576 } 3577 } 3578 3579 private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo nai) { 3580 final boolean wasRunningClat = nai.clatd != null && nai.clatd.isStarted(); 3581 final boolean shouldRunClat = Nat464Xlat.requiresClat(nai); 3582 3583 if (!wasRunningClat && shouldRunClat) { 3584 nai.clatd = new Nat464Xlat(mContext, mNetd, mTrackerHandler, nai); 3585 nai.clatd.start(); 3586 } else if (wasRunningClat && !shouldRunClat) { 3587 nai.clatd.stop(); 3588 } 3589 } 3590 3591 private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { 3592 CompareResult<String> interfaceDiff = new CompareResult<String>(); 3593 if (oldLp != null) { 3594 interfaceDiff = oldLp.compareAllInterfaceNames(newLp); 3595 } else if (newLp != null) { 3596 interfaceDiff.added = newLp.getAllInterfaceNames(); 3597 } 3598 for (String iface : interfaceDiff.added) { 3599 try { 3600 if (DBG) log("Adding iface " + iface + " to network " + netId); 3601 mNetd.addInterfaceToNetwork(iface, netId); 3602 } catch (Exception e) { 3603 loge("Exception adding interface: " + e); 3604 } 3605 } 3606 for (String iface : interfaceDiff.removed) { 3607 try { 3608 if (DBG) log("Removing iface " + iface + " from network " + netId); 3609 mNetd.removeInterfaceFromNetwork(iface, netId); 3610 } catch (Exception e) { 3611 loge("Exception removing interface: " + e); 3612 } 3613 } 3614 } 3615 3616 /** 3617 * Have netd update routes from oldLp to newLp. 3618 * @return true if routes changed between oldLp and newLp 3619 */ 3620 private boolean updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { 3621 CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); 3622 if (oldLp != null) { 3623 routeDiff = oldLp.compareAllRoutes(newLp); 3624 } else if (newLp != null) { 3625 routeDiff.added = newLp.getAllRoutes(); 3626 } 3627 3628 // add routes before removing old in case it helps with continuous connectivity 3629 3630 // do this twice, adding non-nexthop routes first, then routes they are dependent on 3631 for (RouteInfo route : routeDiff.added) { 3632 if (route.hasGateway()) continue; 3633 if (DBG) log("Adding Route [" + route + "] to network " + netId); 3634 try { 3635 mNetd.addRoute(netId, route); 3636 } catch (Exception e) { 3637 if ((route.getDestination().getAddress() instanceof Inet4Address) || VDBG) { 3638 loge("Exception in addRoute for non-gateway: " + e); 3639 } 3640 } 3641 } 3642 for (RouteInfo route : routeDiff.added) { 3643 if (route.hasGateway() == false) continue; 3644 if (DBG) log("Adding Route [" + route + "] to network " + netId); 3645 try { 3646 mNetd.addRoute(netId, route); 3647 } catch (Exception e) { 3648 if ((route.getGateway() instanceof Inet4Address) || VDBG) { 3649 loge("Exception in addRoute for gateway: " + e); 3650 } 3651 } 3652 } 3653 3654 for (RouteInfo route : routeDiff.removed) { 3655 if (DBG) log("Removing Route [" + route + "] from network " + netId); 3656 try { 3657 mNetd.removeRoute(netId, route); 3658 } catch (Exception e) { 3659 loge("Exception in removeRoute: " + e); 3660 } 3661 } 3662 return !routeDiff.added.isEmpty() || !routeDiff.removed.isEmpty(); 3663 } 3664 private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId, boolean flush) { 3665 if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { 3666 Collection<InetAddress> dnses = newLp.getDnsServers(); 3667 if (dnses.size() == 0 && mDefaultDns != null) { 3668 dnses = new ArrayList(); 3669 dnses.add(mDefaultDns); 3670 if (DBG) { 3671 loge("no dns provided for netId " + netId + ", so using defaults"); 3672 } 3673 } 3674 if (DBG) log("Setting Dns servers for network " + netId + " to " + dnses); 3675 try { 3676 mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), 3677 newLp.getDomains()); 3678 } catch (Exception e) { 3679 loge("Exception in setDnsServersForNetwork: " + e); 3680 } 3681 NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); 3682 if (defaultNai != null && defaultNai.network.netId == netId) { 3683 setDefaultDnsSystemProperties(dnses); 3684 } 3685 flushVmDnsCache(); 3686 } else if (flush) { 3687 try { 3688 mNetd.flushNetworkDnsCache(netId); 3689 } catch (Exception e) { 3690 loge("Exception in flushNetworkDnsCache: " + e); 3691 } 3692 flushVmDnsCache(); 3693 } 3694 } 3695 3696 private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { 3697 int last = 0; 3698 for (InetAddress dns : dnses) { 3699 ++last; 3700 String key = "net.dns" + last; 3701 String value = dns.getHostAddress(); 3702 SystemProperties.set(key, value); 3703 } 3704 for (int i = last + 1; i <= mNumDnsEntries; ++i) { 3705 String key = "net.dns" + i; 3706 SystemProperties.set(key, ""); 3707 } 3708 mNumDnsEntries = last; 3709 } 3710 3711 3712 private void updateCapabilities(NetworkAgentInfo networkAgent, 3713 NetworkCapabilities networkCapabilities) { 3714 // TODO - turn this on in MR1 when we have more dogfooding time. 3715 // rematchAllNetworksAndRequests(); 3716 if (!Objects.equals(networkAgent.networkCapabilities, networkCapabilities)) { 3717 synchronized (networkAgent) { 3718 networkAgent.networkCapabilities = networkCapabilities; 3719 } 3720 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_CAP_CHANGED); 3721 } 3722 } 3723 3724 private void sendUpdatedScoreToFactories(NetworkAgentInfo nai) { 3725 for (int i = 0; i < nai.networkRequests.size(); i++) { 3726 NetworkRequest nr = nai.networkRequests.valueAt(i); 3727 // Don't send listening requests to factories. b/17393458 3728 if (!isRequest(nr)) continue; 3729 sendUpdatedScoreToFactories(nr, nai.getCurrentScore()); 3730 } 3731 } 3732 3733 private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { 3734 if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); 3735 for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { 3736 nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, 3737 networkRequest); 3738 } 3739 } 3740 3741 private void callCallbackForRequest(NetworkRequestInfo nri, 3742 NetworkAgentInfo networkAgent, int notificationType) { 3743 if (nri.messenger == null) return; // Default request has no msgr 3744 Bundle bundle = new Bundle(); 3745 bundle.putParcelable(NetworkRequest.class.getSimpleName(), 3746 new NetworkRequest(nri.request)); 3747 Message msg = Message.obtain(); 3748 if (notificationType != ConnectivityManager.CALLBACK_UNAVAIL && 3749 notificationType != ConnectivityManager.CALLBACK_RELEASED) { 3750 bundle.putParcelable(Network.class.getSimpleName(), networkAgent.network); 3751 } 3752 switch (notificationType) { 3753 case ConnectivityManager.CALLBACK_LOSING: { 3754 msg.arg1 = 30 * 1000; // TODO - read this from NetworkMonitor 3755 break; 3756 } 3757 case ConnectivityManager.CALLBACK_CAP_CHANGED: { 3758 bundle.putParcelable(NetworkCapabilities.class.getSimpleName(), 3759 new NetworkCapabilities(networkAgent.networkCapabilities)); 3760 break; 3761 } 3762 case ConnectivityManager.CALLBACK_IP_CHANGED: { 3763 bundle.putParcelable(LinkProperties.class.getSimpleName(), 3764 new LinkProperties(networkAgent.linkProperties)); 3765 break; 3766 } 3767 } 3768 msg.what = notificationType; 3769 msg.setData(bundle); 3770 try { 3771 if (VDBG) { 3772 log("sending notification " + notifyTypeToName(notificationType) + 3773 " for " + nri.request); 3774 } 3775 nri.messenger.send(msg); 3776 } catch (RemoteException e) { 3777 // may occur naturally in the race of binder death. 3778 loge("RemoteException caught trying to send a callback msg for " + nri.request); 3779 } 3780 } 3781 3782 private void teardownUnneededNetwork(NetworkAgentInfo nai) { 3783 for (int i = 0; i < nai.networkRequests.size(); i++) { 3784 NetworkRequest nr = nai.networkRequests.valueAt(i); 3785 // Ignore listening requests. 3786 if (!isRequest(nr)) continue; 3787 loge("Dead network still had at least " + nr); 3788 break; 3789 } 3790 nai.asyncChannel.disconnect(); 3791 } 3792 3793 private void handleLingerComplete(NetworkAgentInfo oldNetwork) { 3794 if (oldNetwork == null) { 3795 loge("Unknown NetworkAgentInfo in handleLingerComplete"); 3796 return; 3797 } 3798 if (DBG) log("handleLingerComplete for " + oldNetwork.name()); 3799 teardownUnneededNetwork(oldNetwork); 3800 } 3801 3802 private void makeDefault(NetworkAgentInfo newNetwork) { 3803 if (DBG) log("Switching to new default network: " + newNetwork); 3804 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 3805 setupDataActivityTracking(newNetwork); 3806 try { 3807 mNetd.setDefaultNetId(newNetwork.network.netId); 3808 } catch (Exception e) { 3809 loge("Exception setting default network :" + e); 3810 } 3811 notifyLockdownVpn(newNetwork); 3812 handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); 3813 updateTcpBufferSizes(newNetwork); 3814 } 3815 3816 // Handles a network appearing or improving its score. 3817 // 3818 // - Evaluates all current NetworkRequests that can be 3819 // satisfied by newNetwork, and reassigns to newNetwork 3820 // any such requests for which newNetwork is the best. 3821 // 3822 // - Lingers any Networks that as a result are no longer 3823 // needed. A network is needed if it is the best network for 3824 // one or more NetworkRequests, or if it is a VPN. 3825 // 3826 // - Tears down newNetwork if it just became validated 3827 // (i.e. nascent==true) but turns out to be unneeded. 3828 // Does not tear down newNetwork if it is unvalidated, 3829 // because future validation may improve newNetwork's 3830 // score enough that it is needed. 3831 // 3832 // NOTE: This function only adds NetworkRequests that "newNetwork" could satisfy, 3833 // it does not remove NetworkRequests that other Networks could better satisfy. 3834 // If you need to handle decreases in score, use {@link rematchAllNetworksAndRequests}. 3835 // This function should be used when possible instead of {@code rematchAllNetworksAndRequests} 3836 // as it performs better by a factor of the number of Networks. 3837 // 3838 // @param nascent indicates if newNetwork just became validated, in which case it should be 3839 // torn down if unneeded. If nascent is false, no action is taken if newNetwork 3840 // is found to be unneeded by this call. Presumably, in this case, either: 3841 // - newNetwork is unvalidated (and left alive), or 3842 // - the NetworkRequests keeping newNetwork alive have been transitioned to 3843 // another higher scoring network by another call to rematchNetworkAndRequests() 3844 // and this other call also lingered newNetwork. 3845 private void rematchNetworkAndRequests(NetworkAgentInfo newNetwork, boolean nascent) { 3846 if (!newNetwork.created) loge("ERROR: uncreated network being rematched."); 3847 if (nascent && !newNetwork.validated) loge("ERROR: nascent network not validated."); 3848 boolean keep = newNetwork.isVPN(); 3849 boolean isNewDefault = false; 3850 if (DBG) log("rematching " + newNetwork.name()); 3851 // Find and migrate to this Network any NetworkRequests for 3852 // which this network is now the best. 3853 ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); 3854 if (VDBG) log(" network has: " + newNetwork.networkCapabilities); 3855 for (NetworkRequestInfo nri : mNetworkRequests.values()) { 3856 NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); 3857 if (newNetwork == currentNetwork) { 3858 if (DBG) { 3859 log("Network " + newNetwork.name() + " was already satisfying" + 3860 " request " + nri.request.requestId + ". No change."); 3861 } 3862 keep = true; 3863 continue; 3864 } 3865 3866 // check if it satisfies the NetworkCapabilities 3867 if (VDBG) log(" checking if request is satisfied: " + nri.request); 3868 if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( 3869 newNetwork.networkCapabilities)) { 3870 if (!nri.isRequest) { 3871 // This is not a request, it's a callback listener. 3872 // Add it to newNetwork regardless of score. 3873 newNetwork.addRequest(nri.request); 3874 continue; 3875 } 3876 3877 // next check if it's better than any current network we're using for 3878 // this request 3879 if (VDBG) { 3880 log("currentScore = " + 3881 (currentNetwork != null ? currentNetwork.getCurrentScore() : 0) + 3882 ", newScore = " + newNetwork.getCurrentScore()); 3883 } 3884 if (currentNetwork == null || 3885 currentNetwork.getCurrentScore() < newNetwork.getCurrentScore()) { 3886 if (currentNetwork != null) { 3887 if (DBG) log(" accepting network in place of " + currentNetwork.name()); 3888 currentNetwork.networkRequests.remove(nri.request.requestId); 3889 currentNetwork.networkLingered.add(nri.request); 3890 affectedNetworks.add(currentNetwork); 3891 } else { 3892 if (DBG) log(" accepting network in place of null"); 3893 } 3894 mNetworkForRequestId.put(nri.request.requestId, newNetwork); 3895 newNetwork.addRequest(nri.request); 3896 if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { 3897 mLegacyTypeTracker.add(nri.request.legacyType, newNetwork); 3898 } 3899 keep = true; 3900 // Tell NetworkFactories about the new score, so they can stop 3901 // trying to connect if they know they cannot match it. 3902 // TODO - this could get expensive if we have alot of requests for this 3903 // network. Think about if there is a way to reduce this. Push 3904 // netid->request mapping to each factory? 3905 sendUpdatedScoreToFactories(nri.request, newNetwork.getCurrentScore()); 3906 if (mDefaultRequest.requestId == nri.request.requestId) { 3907 isNewDefault = true; 3908 // TODO: Remove following line. It's redundant with makeDefault call. 3909 mActiveDefaultNetwork = newNetwork.networkInfo.getType(); 3910 if (newNetwork.linkProperties != null) { 3911 updateTcpBufferSizes(newNetwork); 3912 setDefaultDnsSystemProperties( 3913 newNetwork.linkProperties.getDnsServers()); 3914 } else { 3915 setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); 3916 } 3917 // Maintain the illusion: since the legacy API only 3918 // understands one network at a time, we must pretend 3919 // that the current default network disconnected before 3920 // the new one connected. 3921 if (currentNetwork != null) { 3922 mLegacyTypeTracker.remove(currentNetwork.networkInfo.getType(), 3923 currentNetwork); 3924 } 3925 mDefaultInetConditionPublished = newNetwork.validated ? 100 : 0; 3926 mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); 3927 notifyLockdownVpn(newNetwork); 3928 } 3929 } 3930 } 3931 } 3932 // Linger any networks that are no longer needed. 3933 for (NetworkAgentInfo nai : affectedNetworks) { 3934 boolean teardown = !nai.isVPN() && nai.validated; 3935 for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { 3936 NetworkRequest nr = nai.networkRequests.valueAt(i); 3937 try { 3938 if (isRequest(nr)) { 3939 teardown = false; 3940 } 3941 } catch (Exception e) { 3942 loge("Request " + nr + " not found in mNetworkRequests."); 3943 loge(" it came from request list of " + nai.name()); 3944 } 3945 } 3946 if (teardown) { 3947 nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); 3948 notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); 3949 } else { 3950 // not going to linger, so kill the list of linger networks.. only 3951 // notify them of linger if it happens as the result of gaining another, 3952 // but if they transition and old network stays up, don't tell them of linger 3953 // or very delayed loss 3954 nai.networkLingered.clear(); 3955 if (VDBG) log("Lingered for " + nai.name() + " cleared"); 3956 } 3957 } 3958 if (keep) { 3959 if (isNewDefault) { 3960 // Notify system services that this network is up. 3961 makeDefault(newNetwork); 3962 synchronized (ConnectivityService.this) { 3963 // have a new default network, release the transition wakelock in 3964 // a second if it's held. The second pause is to allow apps 3965 // to reconnect over the new network 3966 if (mNetTransitionWakeLock.isHeld()) { 3967 mHandler.sendMessageDelayed(mHandler.obtainMessage( 3968 EVENT_CLEAR_NET_TRANSITION_WAKELOCK, 3969 mNetTransitionWakeLockSerialNumber, 0), 3970 1000); 3971 } 3972 } 3973 } 3974 3975 // Notify battery stats service about this network, both the normal 3976 // interface and any stacked links. 3977 // TODO: Avoid redoing this; this must only be done once when a network comes online. 3978 try { 3979 final IBatteryStats bs = BatteryStatsService.getService(); 3980 final int type = newNetwork.networkInfo.getType(); 3981 3982 final String baseIface = newNetwork.linkProperties.getInterfaceName(); 3983 bs.noteNetworkInterfaceType(baseIface, type); 3984 for (LinkProperties stacked : newNetwork.linkProperties.getStackedLinks()) { 3985 final String stackedIface = stacked.getInterfaceName(); 3986 bs.noteNetworkInterfaceType(stackedIface, type); 3987 NetworkStatsFactory.noteStackedIface(stackedIface, baseIface); 3988 } 3989 } catch (RemoteException ignored) { 3990 } 3991 3992 notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); 3993 3994 // A VPN generally won't get added to the legacy tracker in the "for (nri)" loop above, 3995 // because usually there are no NetworkRequests it satisfies (e.g., mDefaultRequest 3996 // wants the NOT_VPN capability, so it will never be satisfied by a VPN). So, add the 3997 // newNetwork to the tracker explicitly (it's a no-op if it has already been added). 3998 if (newNetwork.isVPN()) { 3999 mLegacyTypeTracker.add(TYPE_VPN, newNetwork); 4000 } 4001 } else if (nascent) { 4002 // Only tear down newly validated networks here. Leave unvalidated to either become 4003 // validated (and get evaluated against peers, one losing here) or 4004 // NetworkMonitor reports a bad network and we tear it down then. 4005 // Networks that have been up for a while and are validated should be torn down via 4006 // the lingering process so communication on that network is given time to wrap up. 4007 // TODO: Could teardown unvalidated networks when their NetworkCapabilities 4008 // satisfy no NetworkRequests. 4009 if (DBG) log("Validated network turns out to be unwanted. Tear it down."); 4010 teardownUnneededNetwork(newNetwork); 4011 } 4012 } 4013 4014 // Attempt to rematch all Networks with NetworkRequests. This may result in Networks 4015 // being disconnected. 4016 // If only one Network's score or capabilities have been modified since the last time 4017 // this function was called, pass this Network in via the "changed" arugment, otherwise 4018 // pass null. 4019 // If only one Network has been changed but its NetworkCapabilities have not changed, 4020 // pass in the Network's score (from getCurrentScore()) prior to the change via 4021 // "oldScore", otherwise pass changed.getCurrentScore() or 0 if "changed" is null. 4022 private void rematchAllNetworksAndRequests(NetworkAgentInfo changed, int oldScore) { 4023 // TODO: This may get slow. The "changed" parameter is provided for future optimization 4024 // to avoid the slowness. It is not simply enough to process just "changed", for 4025 // example in the case where "changed"'s score decreases and another network should begin 4026 // satifying a NetworkRequest that "changed" currently satisfies. 4027 4028 // Optimization: Only reprocess "changed" if its score improved. This is safe because it 4029 // can only add more NetworkRequests satisfied by "changed", and this is exactly what 4030 // rematchNetworkAndRequests() handles. 4031 if (changed != null && oldScore < changed.getCurrentScore()) { 4032 rematchNetworkAndRequests(changed, false); 4033 } else { 4034 for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { 4035 rematchNetworkAndRequests(nai, false); 4036 } 4037 } 4038 } 4039 4040 private void updateInetCondition(NetworkAgentInfo nai, boolean valid) { 4041 // Don't bother updating until we've graduated to validated at least once. 4042 if (!nai.validated) return; 4043 // For now only update icons for default connection. 4044 // TODO: Update WiFi and cellular icons separately. b/17237507 4045 if (!isDefaultNetwork(nai)) return; 4046 4047 int newInetCondition = valid ? 100 : 0; 4048 // Don't repeat publish. 4049 if (newInetCondition == mDefaultInetConditionPublished) return; 4050 4051 mDefaultInetConditionPublished = newInetCondition; 4052 sendInetConditionBroadcast(nai.networkInfo); 4053 } 4054 4055 private void notifyLockdownVpn(NetworkAgentInfo nai) { 4056 if (mLockdownTracker != null) { 4057 if (nai != null && nai.isVPN()) { 4058 mLockdownTracker.onVpnStateChanged(nai.networkInfo); 4059 } else { 4060 mLockdownTracker.onNetworkInfoChanged(); 4061 } 4062 } 4063 } 4064 4065 private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { 4066 NetworkInfo.State state = newInfo.getState(); 4067 NetworkInfo oldInfo = null; 4068 synchronized (networkAgent) { 4069 oldInfo = networkAgent.networkInfo; 4070 networkAgent.networkInfo = newInfo; 4071 } 4072 notifyLockdownVpn(networkAgent); 4073 4074 if (oldInfo != null && oldInfo.getState() == state) { 4075 if (VDBG) log("ignoring duplicate network state non-change"); 4076 return; 4077 } 4078 if (DBG) { 4079 log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + 4080 (oldInfo == null ? "null" : oldInfo.getState()) + 4081 " to " + state); 4082 } 4083 4084 if (state == NetworkInfo.State.CONNECTED && !networkAgent.created) { 4085 try { 4086 // This should never fail. Specifying an already in use NetID will cause failure. 4087 if (networkAgent.isVPN()) { 4088 mNetd.createVirtualNetwork(networkAgent.network.netId, 4089 !networkAgent.linkProperties.getDnsServers().isEmpty(), 4090 (networkAgent.networkMisc == null || 4091 !networkAgent.networkMisc.allowBypass)); 4092 } else { 4093 mNetd.createPhysicalNetwork(networkAgent.network.netId); 4094 } 4095 } catch (Exception e) { 4096 loge("Error creating network " + networkAgent.network.netId + ": " 4097 + e.getMessage()); 4098 return; 4099 } 4100 networkAgent.created = true; 4101 updateLinkProperties(networkAgent, null); 4102 notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); 4103 networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); 4104 if (networkAgent.isVPN()) { 4105 // Temporarily disable the default proxy (not global). 4106 synchronized (mProxyLock) { 4107 if (!mDefaultProxyDisabled) { 4108 mDefaultProxyDisabled = true; 4109 if (mGlobalProxy == null && mDefaultProxy != null) { 4110 sendProxyBroadcast(null); 4111 } 4112 } 4113 } 4114 // TODO: support proxy per network. 4115 } 4116 // Consider network even though it is not yet validated. 4117 rematchNetworkAndRequests(networkAgent, false); 4118 } else if (state == NetworkInfo.State.DISCONNECTED || 4119 state == NetworkInfo.State.SUSPENDED) { 4120 networkAgent.asyncChannel.disconnect(); 4121 if (networkAgent.isVPN()) { 4122 synchronized (mProxyLock) { 4123 if (mDefaultProxyDisabled) { 4124 mDefaultProxyDisabled = false; 4125 if (mGlobalProxy == null && mDefaultProxy != null) { 4126 sendProxyBroadcast(mDefaultProxy); 4127 } 4128 } 4129 } 4130 } 4131 } 4132 } 4133 4134 private void updateNetworkScore(NetworkAgentInfo nai, int score) { 4135 if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); 4136 if (score < 0) { 4137 loge("updateNetworkScore for " + nai.name() + " got a negative score (" + score + 4138 "). Bumping score to min of 0"); 4139 score = 0; 4140 } 4141 4142 final int oldScore = nai.getCurrentScore(); 4143 nai.setCurrentScore(score); 4144 4145 if (nai.created) rematchAllNetworksAndRequests(nai, oldScore); 4146 4147 sendUpdatedScoreToFactories(nai); 4148 } 4149 4150 // notify only this one new request of the current state 4151 protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { 4152 int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; 4153 // TODO - read state from monitor to decide what to send. 4154// if (nai.networkMonitor.isLingering()) { 4155// notifyType = NetworkCallbacks.LOSING; 4156// } else if (nai.networkMonitor.isEvaluating()) { 4157// notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); 4158// } 4159 callCallbackForRequest(nri, nai, notifyType); 4160 } 4161 4162 private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { 4163 // The NetworkInfo we actually send out has no bearing on the real 4164 // state of affairs. For example, if the default connection is mobile, 4165 // and a request for HIPRI has just gone away, we need to pretend that 4166 // HIPRI has just disconnected. So we need to set the type to HIPRI and 4167 // the state to DISCONNECTED, even though the network is of type MOBILE 4168 // and is still connected. 4169 NetworkInfo info = new NetworkInfo(nai.networkInfo); 4170 info.setType(type); 4171 if (connected) { 4172 info.setDetailedState(DetailedState.CONNECTED, null, info.getExtraInfo()); 4173 sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); 4174 } else { 4175 info.setDetailedState(DetailedState.DISCONNECTED, null, info.getExtraInfo()); 4176 Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); 4177 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); 4178 intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); 4179 if (info.isFailover()) { 4180 intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); 4181 nai.networkInfo.setFailover(false); 4182 } 4183 if (info.getReason() != null) { 4184 intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); 4185 } 4186 if (info.getExtraInfo() != null) { 4187 intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo()); 4188 } 4189 NetworkAgentInfo newDefaultAgent = null; 4190 if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { 4191 newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); 4192 if (newDefaultAgent != null) { 4193 intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, 4194 newDefaultAgent.networkInfo); 4195 } else { 4196 intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); 4197 } 4198 } 4199 intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, 4200 mDefaultInetConditionPublished); 4201 final Intent immediateIntent = new Intent(intent); 4202 immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); 4203 sendStickyBroadcast(immediateIntent); 4204 sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); 4205 if (newDefaultAgent != null) { 4206 sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, 4207 getConnectivityChangeDelay()); 4208 } 4209 } 4210 } 4211 4212 protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { 4213 if (DBG) log("notifyType " + notifyTypeToName(notifyType) + " for " + networkAgent.name()); 4214 for (int i = 0; i < networkAgent.networkRequests.size(); i++) { 4215 NetworkRequest nr = networkAgent.networkRequests.valueAt(i); 4216 NetworkRequestInfo nri = mNetworkRequests.get(nr); 4217 if (VDBG) log(" sending notification for " + nr); 4218 callCallbackForRequest(nri, networkAgent, notifyType); 4219 } 4220 } 4221 4222 private String notifyTypeToName(int notifyType) { 4223 switch (notifyType) { 4224 case ConnectivityManager.CALLBACK_PRECHECK: return "PRECHECK"; 4225 case ConnectivityManager.CALLBACK_AVAILABLE: return "AVAILABLE"; 4226 case ConnectivityManager.CALLBACK_LOSING: return "LOSING"; 4227 case ConnectivityManager.CALLBACK_LOST: return "LOST"; 4228 case ConnectivityManager.CALLBACK_UNAVAIL: return "UNAVAILABLE"; 4229 case ConnectivityManager.CALLBACK_CAP_CHANGED: return "CAP_CHANGED"; 4230 case ConnectivityManager.CALLBACK_IP_CHANGED: return "IP_CHANGED"; 4231 case ConnectivityManager.CALLBACK_RELEASED: return "RELEASED"; 4232 } 4233 return "UNKNOWN"; 4234 } 4235 4236 private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { 4237 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4238 if (nai != null) { 4239 synchronized (nai) { 4240 return new LinkProperties(nai.linkProperties); 4241 } 4242 } 4243 return new LinkProperties(); 4244 } 4245 4246 private NetworkInfo getNetworkInfoForType(int networkType) { 4247 if (!mLegacyTypeTracker.isTypeSupported(networkType)) 4248 return null; 4249 4250 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4251 if (nai != null) { 4252 NetworkInfo result = new NetworkInfo(nai.networkInfo); 4253 result.setType(networkType); 4254 return result; 4255 } else { 4256 NetworkInfo result = new NetworkInfo( 4257 networkType, 0, ConnectivityManager.getNetworkTypeName(networkType), ""); 4258 result.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, null, null); 4259 result.setIsAvailable(true); 4260 return result; 4261 } 4262 } 4263 4264 private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { 4265 NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); 4266 if (nai != null) { 4267 synchronized (nai) { 4268 return new NetworkCapabilities(nai.networkCapabilities); 4269 } 4270 } 4271 return new NetworkCapabilities(); 4272 } 4273 4274 @Override 4275 public boolean addVpnAddress(String address, int prefixLength) { 4276 throwIfLockdownEnabled(); 4277 int user = UserHandle.getUserId(Binder.getCallingUid()); 4278 synchronized (mVpns) { 4279 return mVpns.get(user).addAddress(address, prefixLength); 4280 } 4281 } 4282 4283 @Override 4284 public boolean removeVpnAddress(String address, int prefixLength) { 4285 throwIfLockdownEnabled(); 4286 int user = UserHandle.getUserId(Binder.getCallingUid()); 4287 synchronized (mVpns) { 4288 return mVpns.get(user).removeAddress(address, prefixLength); 4289 } 4290 } 4291} 4292