1 /* 2 * Copyright (C) 2006 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 17 package com.android.internal.telephony.dataconnection; 18 19 import android.app.AlarmManager; 20 import android.app.PendingIntent; 21 import android.content.BroadcastReceiver; 22 import android.content.ContentResolver; 23 import android.content.Context; 24 import android.content.Intent; 25 import android.content.IntentFilter; 26 import android.content.SharedPreferences; 27 import android.database.ContentObserver; 28 import android.net.LinkCapabilities; 29 import android.net.LinkProperties; 30 import android.net.NetworkInfo; 31 import android.net.TrafficStats; 32 import android.net.wifi.WifiManager; 33 import android.os.AsyncResult; 34 import android.os.Bundle; 35 import android.os.Handler; 36 import android.os.HandlerThread; 37 import android.os.Message; 38 import android.os.Messenger; 39 import android.os.SystemClock; 40 import android.os.SystemProperties; 41 import android.preference.PreferenceManager; 42 import android.provider.Settings; 43 import android.provider.Settings.SettingNotFoundException; 44 import android.telephony.TelephonyManager; 45 import android.text.TextUtils; 46 import android.util.EventLog; 47 import android.telephony.Rlog; 48 49 import com.android.internal.R; 50 import com.android.internal.telephony.DctConstants; 51 import com.android.internal.telephony.EventLogTags; 52 import com.android.internal.telephony.Phone; 53 import com.android.internal.telephony.PhoneBase; 54 import com.android.internal.telephony.PhoneConstants; 55 import com.android.internal.telephony.uicc.IccRecords; 56 import com.android.internal.telephony.uicc.UiccController; 57 import com.android.internal.util.AsyncChannel; 58 59 import java.io.FileDescriptor; 60 import java.io.PrintWriter; 61 import java.util.ArrayList; 62 import java.util.HashMap; 63 import java.util.Map.Entry; 64 import java.util.Set; 65 import java.util.concurrent.ConcurrentHashMap; 66 import java.util.concurrent.atomic.AtomicInteger; 67 import java.util.concurrent.atomic.AtomicReference; 68 69 /** 70 * {@hide} 71 */ 72 public abstract class DcTrackerBase extends Handler { 73 protected static final boolean DBG = true; 74 protected static final boolean VDBG = false; // STOPSHIP if true 75 protected static final boolean VDBG_STALL = true; // STOPSHIP if true 76 protected static final boolean RADIO_TESTS = false; 77 78 /** 79 * Constants for the data connection activity: 80 * physical link down/up 81 */ 82 protected static final int DATA_CONNECTION_ACTIVE_PH_LINK_INACTIVE = 0; 83 protected static final int DATA_CONNECTION_ACTIVE_PH_LINK_DOWN = 1; 84 protected static final int DATA_CONNECTION_ACTIVE_PH_LINK_UP = 2; 85 86 /** Delay between APN attempts. 87 Note the property override mechanism is there just for testing purpose only. */ 88 protected static final int APN_DELAY_DEFAULT_MILLIS = 20000; 89 90 /** Delay between APN attempts when in fail fast mode */ 91 protected static final int APN_FAIL_FAST_DELAY_DEFAULT_MILLIS = 3000; 92 93 AlarmManager mAlarmManager; 94 95 protected Object mDataEnabledLock = new Object(); 96 97 // responds to the setInternalDataEnabled call - used internally to turn off data 98 // for example during emergency calls 99 protected boolean mInternalDataEnabled = true; 100 101 // responds to public (user) API to enable/disable data use 102 // independent of mInternalDataEnabled and requests for APN access 103 // persisted 104 protected boolean mUserDataEnabled = true; 105 106 // TODO: move away from static state once 5587429 is fixed. 107 protected static boolean sPolicyDataEnabled = true; 108 109 private boolean[] mDataEnabled = new boolean[DctConstants.APN_NUM_TYPES]; 110 111 private int mEnabledCount = 0; 112 113 /* Currently requested APN type (TODO: This should probably be a parameter not a member) */ 114 protected String mRequestedApnType = PhoneConstants.APN_TYPE_DEFAULT; 115 116 /** Retry configuration: A doubling of retry times from 5secs to 30minutes */ 117 protected static final String DEFAULT_DATA_RETRY_CONFIG = "default_randomization=2000," 118 + "5000,10000,20000,40000,80000:5000,160000:5000," 119 + "320000:5000,640000:5000,1280000:5000,1800000:5000"; 120 121 /** Retry configuration for secondary networks: 4 tries in 20 sec */ 122 protected static final String SECONDARY_DATA_RETRY_CONFIG = 123 "max_retries=3, 5000, 5000, 5000"; 124 125 /** Slow poll when attempting connection recovery. */ 126 protected static final int POLL_NETSTAT_SLOW_MILLIS = 5000; 127 /** Default max failure count before attempting to network re-registration. */ 128 protected static final int DEFAULT_MAX_PDP_RESET_FAIL = 3; 129 130 /** 131 * After detecting a potential connection problem, this is the max number 132 * of subsequent polls before attempting recovery. 133 */ 134 protected static final int NO_RECV_POLL_LIMIT = 24; 135 // 1 sec. default polling interval when screen is on. 136 protected static final int POLL_NETSTAT_MILLIS = 1000; 137 // 10 min. default polling interval when screen is off. 138 protected static final int POLL_NETSTAT_SCREEN_OFF_MILLIS = 1000*60*10; 139 // 2 min for round trip time 140 protected static final int POLL_LONGEST_RTT = 120 * 1000; 141 // Default sent packets without ack which triggers initial recovery steps 142 protected static final int NUMBER_SENT_PACKETS_OF_HANG = 10; 143 // how long to wait before switching back to default APN 144 protected static final int RESTORE_DEFAULT_APN_DELAY = 1 * 60 * 1000; 145 // system property that can override the above value 146 protected static final String APN_RESTORE_DELAY_PROP_NAME = "android.telephony.apn-restore"; 147 // represents an invalid IP address 148 protected static final String NULL_IP = "0.0.0.0"; 149 150 // Default for the data stall alarm while non-aggressive stall detection 151 protected static final int DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS_DEFAULT = 1000 * 60 * 6; 152 // Default for the data stall alarm for aggressive stall detection 153 protected static final int DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS_DEFAULT = 1000 * 60; 154 // If attempt is less than this value we're doing first level recovery 155 protected static final int DATA_STALL_NO_RECV_POLL_LIMIT = 1; 156 // Tag for tracking stale alarms 157 protected static final String DATA_STALL_ALARM_TAG_EXTRA = "data.stall.alram.tag"; 158 159 protected static final boolean DATA_STALL_SUSPECTED = true; 160 protected static final boolean DATA_STALL_NOT_SUSPECTED = false; 161 162 protected String RADIO_RESET_PROPERTY = "gsm.radioreset"; 163 164 protected static final String INTENT_RECONNECT_ALARM = 165 "com.android.internal.telephony.data-reconnect"; 166 protected static final String INTENT_RECONNECT_ALARM_EXTRA_TYPE = "reconnect_alarm_extra_type"; 167 protected static final String INTENT_RECONNECT_ALARM_EXTRA_REASON = 168 "reconnect_alarm_extra_reason"; 169 170 protected static final String INTENT_RESTART_TRYSETUP_ALARM = 171 "com.android.internal.telephony.data-restart-trysetup"; 172 protected static final String INTENT_RESTART_TRYSETUP_ALARM_EXTRA_TYPE = 173 "restart_trysetup_alarm_extra_type"; 174 175 protected static final String INTENT_DATA_STALL_ALARM = 176 "com.android.internal.telephony.data-stall"; 177 178 179 180 protected static final String DEFALUT_DATA_ON_BOOT_PROP = "net.def_data_on_boot"; 181 182 protected DcTesterFailBringUpAll mDcTesterFailBringUpAll; 183 protected DcController mDcc; 184 185 // member variables 186 protected PhoneBase mPhone; 187 protected UiccController mUiccController; 188 protected AtomicReference<IccRecords> mIccRecords = new AtomicReference<IccRecords>(); 189 protected DctConstants.Activity mActivity = DctConstants.Activity.NONE; 190 protected DctConstants.State mState = DctConstants.State.IDLE; 191 protected Handler mDataConnectionTracker = null; 192 193 protected long mTxPkts; 194 protected long mRxPkts; 195 protected int mNetStatPollPeriod; 196 protected boolean mNetStatPollEnabled = false; 197 198 protected TxRxSum mDataStallTxRxSum = new TxRxSum(0, 0); 199 // Used to track stale data stall alarms. 200 protected int mDataStallAlarmTag = (int) SystemClock.elapsedRealtime(); 201 // The current data stall alarm intent 202 protected PendingIntent mDataStallAlarmIntent = null; 203 // Number of packets sent since the last received packet 204 protected long mSentSinceLastRecv; 205 // Controls when a simple recovery attempt it to be tried 206 protected int mNoRecvPollCount = 0; 207 // True if data stall detection is enabled 208 protected volatile boolean mDataStallDetectionEnabled = true; 209 210 protected volatile boolean mFailFast = false; 211 212 // True when in voice call 213 protected boolean mInVoiceCall = false; 214 215 // wifi connection status will be updated by sticky intent 216 protected boolean mIsWifiConnected = false; 217 218 /** Intent sent when the reconnect alarm fires. */ 219 protected PendingIntent mReconnectIntent = null; 220 221 /** CID of active data connection */ 222 protected int mCidActive; 223 224 // When false we will not auto attach and manually attaching is required. 225 protected boolean mAutoAttachOnCreation = false; 226 227 // State of screen 228 // (TODO: Reconsider tying directly to screen, maybe this is 229 // really a lower power mode") 230 protected boolean mIsScreenOn = true; 231 232 /** Allows the generation of unique Id's for DataConnection objects */ 233 protected AtomicInteger mUniqueIdGenerator = new AtomicInteger(0); 234 235 /** The data connections. */ 236 protected HashMap<Integer, DataConnection> mDataConnections = 237 new HashMap<Integer, DataConnection>(); 238 239 /** The data connection async channels */ 240 protected HashMap<Integer, DcAsyncChannel> mDataConnectionAcHashMap = 241 new HashMap<Integer, DcAsyncChannel>(); 242 243 /** Convert an ApnType string to Id (TODO: Use "enumeration" instead of String for ApnType) */ 244 protected HashMap<String, Integer> mApnToDataConnectionId = 245 new HashMap<String, Integer>(); 246 247 /** Phone.APN_TYPE_* ===> ApnContext */ 248 protected ConcurrentHashMap<String, ApnContext> mApnContexts = 249 new ConcurrentHashMap<String, ApnContext>(); 250 251 /* Currently active APN */ 252 protected ApnSetting mActiveApn; 253 254 /** allApns holds all apns */ 255 protected ArrayList<ApnSetting> mAllApnSettings = null; 256 257 /** preferred apn */ 258 protected ApnSetting mPreferredApn = null; 259 260 /** Is packet service restricted by network */ 261 protected boolean mIsPsRestricted = false; 262 263 /* Once disposed dont handle any messages */ 264 protected boolean mIsDisposed = false; 265 266 protected ContentResolver mResolver; 267 268 protected BroadcastReceiver mIntentReceiver = new BroadcastReceiver () 269 { 270 @Override 271 public void onReceive(Context context, Intent intent) 272 { 273 String action = intent.getAction(); 274 if (DBG) log("onReceive: action=" + action); 275 if (action.equals(Intent.ACTION_SCREEN_ON)) { 276 mIsScreenOn = true; 277 stopNetStatPoll(); 278 startNetStatPoll(); 279 restartDataStallAlarm(); 280 } else if (action.equals(Intent.ACTION_SCREEN_OFF)) { 281 mIsScreenOn = false; 282 stopNetStatPoll(); 283 startNetStatPoll(); 284 restartDataStallAlarm(); 285 } else if (action.startsWith(INTENT_RECONNECT_ALARM)) { 286 if (DBG) log("Reconnect alarm. Previous state was " + mState); 287 onActionIntentReconnectAlarm(intent); 288 } else if (action.startsWith(INTENT_RESTART_TRYSETUP_ALARM)) { 289 if (DBG) log("Restart trySetup alarm"); 290 onActionIntentRestartTrySetupAlarm(intent); 291 } else if (action.equals(INTENT_DATA_STALL_ALARM)) { 292 onActionIntentDataStallAlarm(intent); 293 } else if (action.equals(WifiManager.NETWORK_STATE_CHANGED_ACTION)) { 294 final android.net.NetworkInfo networkInfo = (NetworkInfo) 295 intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO); 296 mIsWifiConnected = (networkInfo != null && networkInfo.isConnected()); 297 if (DBG) log("NETWORK_STATE_CHANGED_ACTION: mIsWifiConnected=" + mIsWifiConnected); 298 } else if (action.equals(WifiManager.WIFI_STATE_CHANGED_ACTION)) { 299 final boolean enabled = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE, 300 WifiManager.WIFI_STATE_UNKNOWN) == WifiManager.WIFI_STATE_ENABLED; 301 302 if (!enabled) { 303 // when WiFi got disabled, the NETWORK_STATE_CHANGED_ACTION 304 // quit and won't report disconnected until next enabling. 305 mIsWifiConnected = false; 306 } 307 if (DBG) log("WIFI_STATE_CHANGED_ACTION: enabled=" + enabled 308 + " mIsWifiConnected=" + mIsWifiConnected); 309 } 310 } 311 }; 312 313 private Runnable mPollNetStat = new Runnable() 314 { 315 @Override 316 public void run() { 317 updateDataActivity(); 318 319 if (mIsScreenOn) { 320 mNetStatPollPeriod = Settings.Global.getInt(mResolver, 321 Settings.Global.PDP_WATCHDOG_POLL_INTERVAL_MS, POLL_NETSTAT_MILLIS); 322 } else { 323 mNetStatPollPeriod = Settings.Global.getInt(mResolver, 324 Settings.Global.PDP_WATCHDOG_LONG_POLL_INTERVAL_MS, 325 POLL_NETSTAT_SCREEN_OFF_MILLIS); 326 } 327 328 if (mNetStatPollEnabled) { 329 mDataConnectionTracker.postDelayed(this, mNetStatPollPeriod); 330 } 331 } 332 }; 333 334 private class DataRoamingSettingObserver extends ContentObserver { 335 336 public DataRoamingSettingObserver(Handler handler, Context context) { 337 super(handler); 338 mResolver = context.getContentResolver(); 339 } 340 341 public void register() { 342 mResolver.registerContentObserver( 343 Settings.Global.getUriFor(Settings.Global.DATA_ROAMING), false, this); 344 } 345 346 public void unregister() { 347 mResolver.unregisterContentObserver(this); 348 } 349 350 @Override 351 public void onChange(boolean selfChange) { 352 // already running on mPhone handler thread 353 if (mPhone.getServiceState().getRoaming()) { 354 sendMessage(obtainMessage(DctConstants.EVENT_ROAMING_ON)); 355 } 356 } 357 } 358 private final DataRoamingSettingObserver mDataRoamingSettingObserver; 359 360 /** 361 * The Initial MaxRetry sent to a DataConnection as a parameter 362 * to DataConnectionAc.bringUp. This value can be defined at compile 363 * time using the SystemProperty Settings.Global.DCT_INITIAL_MAX_RETRY 364 * and at runtime using gservices to change Settings.Global.DCT_INITIAL_MAX_RETRY. 365 */ 366 private static final int DEFAULT_MDC_INITIAL_RETRY = 1; 367 protected int getInitialMaxRetry() { 368 if (mFailFast) { 369 return 0; 370 } 371 // Get default value from system property or use DEFAULT_MDC_INITIAL_RETRY 372 int value = SystemProperties.getInt( 373 Settings.Global.MDC_INITIAL_MAX_RETRY, DEFAULT_MDC_INITIAL_RETRY); 374 375 // Check if its been overridden 376 return Settings.Global.getInt(mResolver, 377 Settings.Global.MDC_INITIAL_MAX_RETRY, value); 378 } 379 380 /** 381 * Maintain the sum of transmit and receive packets. 382 * 383 * The packet counts are initialized and reset to -1 and 384 * remain -1 until they can be updated. 385 */ 386 public class TxRxSum { 387 public long txPkts; 388 public long rxPkts; 389 390 public TxRxSum() { 391 reset(); 392 } 393 394 public TxRxSum(long txPkts, long rxPkts) { 395 this.txPkts = txPkts; 396 this.rxPkts = rxPkts; 397 } 398 399 public TxRxSum(TxRxSum sum) { 400 txPkts = sum.txPkts; 401 rxPkts = sum.rxPkts; 402 } 403 404 public void reset() { 405 txPkts = -1; 406 rxPkts = -1; 407 } 408 409 @Override 410 public String toString() { 411 return "{txSum=" + txPkts + " rxSum=" + rxPkts + "}"; 412 } 413 414 public void updateTxRxSum() { 415 this.txPkts = TrafficStats.getMobileTcpTxPackets(); 416 this.rxPkts = TrafficStats.getMobileTcpRxPackets(); 417 } 418 } 419 420 protected void onActionIntentReconnectAlarm(Intent intent) { 421 String reason = intent.getStringExtra(INTENT_RECONNECT_ALARM_EXTRA_REASON); 422 String apnType = intent.getStringExtra(INTENT_RECONNECT_ALARM_EXTRA_TYPE); 423 424 ApnContext apnContext = mApnContexts.get(apnType); 425 426 if (DBG) { 427 log("onActionIntentReconnectAlarm: mState=" + mState + " reason=" + reason + 428 " apnType=" + apnType + " apnContext=" + apnContext + 429 " mDataConnectionAsyncChannels=" + mDataConnectionAcHashMap); 430 } 431 432 if ((apnContext != null) && (apnContext.isEnabled())) { 433 apnContext.setReason(reason); 434 DctConstants.State apnContextState = apnContext.getState(); 435 if (DBG) { 436 log("onActionIntentReconnectAlarm: apnContext state=" + apnContextState); 437 } 438 if ((apnContextState == DctConstants.State.FAILED) 439 || (apnContextState == DctConstants.State.IDLE)) { 440 if (DBG) { 441 log("onActionIntentReconnectAlarm: state is FAILED|IDLE, disassociate"); 442 } 443 DcAsyncChannel dcac = apnContext.getDcAc(); 444 if (dcac != null) { 445 dcac.tearDown(apnContext, "", null); 446 } 447 apnContext.setDataConnectionAc(null); 448 apnContext.setState(DctConstants.State.IDLE); 449 } else { 450 if (DBG) log("onActionIntentReconnectAlarm: keep associated"); 451 } 452 // TODO: IF already associated should we send the EVENT_TRY_SETUP_DATA??? 453 sendMessage(obtainMessage(DctConstants.EVENT_TRY_SETUP_DATA, apnContext)); 454 455 apnContext.setReconnectIntent(null); 456 } 457 } 458 459 protected void onActionIntentRestartTrySetupAlarm(Intent intent) { 460 String apnType = intent.getStringExtra(INTENT_RESTART_TRYSETUP_ALARM_EXTRA_TYPE); 461 ApnContext apnContext = mApnContexts.get(apnType); 462 if (DBG) { 463 log("onActionIntentRestartTrySetupAlarm: mState=" + mState + 464 " apnType=" + apnType + " apnContext=" + apnContext + 465 " mDataConnectionAsyncChannels=" + mDataConnectionAcHashMap); 466 } 467 sendMessage(obtainMessage(DctConstants.EVENT_TRY_SETUP_DATA, apnContext)); 468 } 469 470 protected void onActionIntentDataStallAlarm(Intent intent) { 471 if (VDBG_STALL) log("onActionIntentDataStallAlarm: action=" + intent.getAction()); 472 Message msg = obtainMessage(DctConstants.EVENT_DATA_STALL_ALARM, 473 intent.getAction()); 474 msg.arg1 = intent.getIntExtra(DATA_STALL_ALARM_TAG_EXTRA, 0); 475 sendMessage(msg); 476 } 477 478 /** 479 * Default constructor 480 */ 481 protected DcTrackerBase(PhoneBase phone) { 482 super(); 483 if (DBG) log("DCT.constructor"); 484 mPhone = phone; 485 mResolver = mPhone.getContext().getContentResolver(); 486 mUiccController = UiccController.getInstance(); 487 mUiccController.registerForIccChanged(this, DctConstants.EVENT_ICC_CHANGED, null); 488 mAlarmManager = 489 (AlarmManager) mPhone.getContext().getSystemService(Context.ALARM_SERVICE); 490 491 492 IntentFilter filter = new IntentFilter(); 493 filter.addAction(Intent.ACTION_SCREEN_ON); 494 filter.addAction(Intent.ACTION_SCREEN_OFF); 495 filter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION); 496 filter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION); 497 filter.addAction(INTENT_DATA_STALL_ALARM); 498 499 mUserDataEnabled = Settings.Global.getInt( 500 mPhone.getContext().getContentResolver(), Settings.Global.MOBILE_DATA, 1) == 1; 501 502 mPhone.getContext().registerReceiver(mIntentReceiver, filter, null, mPhone); 503 504 // This preference tells us 1) initial condition for "dataEnabled", 505 // and 2) whether the RIL will setup the baseband to auto-PS attach. 506 507 mDataEnabled[DctConstants.APN_DEFAULT_ID] = 508 SystemProperties.getBoolean(DEFALUT_DATA_ON_BOOT_PROP,true); 509 if (mDataEnabled[DctConstants.APN_DEFAULT_ID]) { 510 mEnabledCount++; 511 } 512 513 SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(mPhone.getContext()); 514 mAutoAttachOnCreation = sp.getBoolean(PhoneBase.DATA_DISABLED_ON_BOOT_KEY, false); 515 516 // Watch for changes to Settings.Global.DATA_ROAMING 517 mDataRoamingSettingObserver = new DataRoamingSettingObserver(mPhone, mPhone.getContext()); 518 mDataRoamingSettingObserver.register(); 519 520 HandlerThread dcHandlerThread = new HandlerThread("DcHandlerThread"); 521 dcHandlerThread.start(); 522 Handler dcHandler = new Handler(dcHandlerThread.getLooper()); 523 mDcc = DcController.makeDcc(mPhone, this, dcHandler); 524 mDcTesterFailBringUpAll = new DcTesterFailBringUpAll(mPhone, dcHandler); 525 } 526 527 public void dispose() { 528 if (DBG) log("DCT.dispose"); 529 for (DcAsyncChannel dcac : mDataConnectionAcHashMap.values()) { 530 dcac.disconnect(); 531 } 532 mDataConnectionAcHashMap.clear(); 533 mIsDisposed = true; 534 mPhone.getContext().unregisterReceiver(mIntentReceiver); 535 mUiccController.unregisterForIccChanged(this); 536 mDataRoamingSettingObserver.unregister(); 537 mDcc.dispose(); 538 mDcTesterFailBringUpAll.dispose(); 539 } 540 541 public DctConstants.Activity getActivity() { 542 return mActivity; 543 } 544 545 public boolean isApnTypeActive(String type) { 546 // TODO: support simultaneous with List instead 547 if (PhoneConstants.APN_TYPE_DUN.equals(type)) { 548 ApnSetting dunApn = fetchDunApn(); 549 if (dunApn != null) { 550 return ((mActiveApn != null) && (dunApn.toString().equals(mActiveApn.toString()))); 551 } 552 } 553 return mActiveApn != null && mActiveApn.canHandleType(type); 554 } 555 556 protected ApnSetting fetchDunApn() { 557 if (SystemProperties.getBoolean("net.tethering.noprovisioning", false)) { 558 log("fetchDunApn: net.tethering.noprovisioning=true ret: null"); 559 return null; 560 } 561 Context c = mPhone.getContext(); 562 String apnData = Settings.Global.getString(c.getContentResolver(), 563 Settings.Global.TETHER_DUN_APN); 564 ApnSetting dunSetting = ApnSetting.fromString(apnData); 565 if (dunSetting != null) { 566 if (VDBG) log("fetchDunApn: global TETHER_DUN_APN dunSetting=" + dunSetting); 567 return dunSetting; 568 } 569 570 apnData = c.getResources().getString(R.string.config_tether_apndata); 571 dunSetting = ApnSetting.fromString(apnData); 572 if (VDBG) log("fetchDunApn: config_tether_apndata dunSetting=" + dunSetting); 573 return dunSetting; 574 } 575 576 public String[] getActiveApnTypes() { 577 String[] result; 578 if (mActiveApn != null) { 579 result = mActiveApn.types; 580 } else { 581 result = new String[1]; 582 result[0] = PhoneConstants.APN_TYPE_DEFAULT; 583 } 584 return result; 585 } 586 587 /** TODO: See if we can remove */ 588 public String getActiveApnString(String apnType) { 589 String result = null; 590 if (mActiveApn != null) { 591 result = mActiveApn.apn; 592 } 593 return result; 594 } 595 596 /** 597 * Modify {@link android.provider.Settings.Global#DATA_ROAMING} value. 598 */ 599 public void setDataOnRoamingEnabled(boolean enabled) { 600 if (getDataOnRoamingEnabled() != enabled) { 601 final ContentResolver resolver = mPhone.getContext().getContentResolver(); 602 Settings.Global.putInt(resolver, Settings.Global.DATA_ROAMING, enabled ? 1 : 0); 603 // will trigger handleDataOnRoamingChange() through observer 604 } 605 } 606 607 /** 608 * Return current {@link android.provider.Settings.Global#DATA_ROAMING} value. 609 */ 610 public boolean getDataOnRoamingEnabled() { 611 try { 612 final ContentResolver resolver = mPhone.getContext().getContentResolver(); 613 return Settings.Global.getInt(resolver, Settings.Global.DATA_ROAMING) != 0; 614 } catch (SettingNotFoundException snfe) { 615 return false; 616 } 617 } 618 619 // abstract methods 620 protected abstract void restartRadio(); 621 protected abstract void log(String s); 622 protected abstract void loge(String s); 623 protected abstract boolean isDataAllowed(); 624 protected abstract boolean isApnTypeAvailable(String type); 625 public abstract DctConstants.State getState(String apnType); 626 protected abstract void setState(DctConstants.State s); 627 protected abstract void gotoIdleAndNotifyDataConnection(String reason); 628 629 protected abstract boolean onTrySetupData(String reason); 630 protected abstract void onRoamingOff(); 631 protected abstract void onRoamingOn(); 632 protected abstract void onRadioAvailable(); 633 protected abstract void onRadioOffOrNotAvailable(); 634 protected abstract void onDataSetupComplete(AsyncResult ar); 635 protected abstract void onDataSetupCompleteError(AsyncResult ar); 636 protected abstract void onDisconnectDone(int connId, AsyncResult ar); 637 protected abstract void onDisconnectDcRetrying(int connId, AsyncResult ar); 638 protected abstract void onVoiceCallStarted(); 639 protected abstract void onVoiceCallEnded(); 640 protected abstract void onCleanUpConnection(boolean tearDown, int apnId, String reason); 641 protected abstract void onCleanUpAllConnections(String cause); 642 public abstract boolean isDataPossible(String apnType); 643 protected abstract void onUpdateIcc(); 644 645 @Override 646 public void handleMessage(Message msg) { 647 switch (msg.what) { 648 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 649 log("DISCONNECTED_CONNECTED: msg=" + msg); 650 DcAsyncChannel dcac = (DcAsyncChannel) msg.obj; 651 mDataConnectionAcHashMap.remove(dcac.getDataConnectionIdSync()); 652 dcac.disconnected(); 653 break; 654 } 655 case DctConstants.EVENT_ENABLE_NEW_APN: 656 onEnableApn(msg.arg1, msg.arg2); 657 break; 658 659 case DctConstants.EVENT_TRY_SETUP_DATA: 660 String reason = null; 661 if (msg.obj instanceof String) { 662 reason = (String) msg.obj; 663 } 664 onTrySetupData(reason); 665 break; 666 667 case DctConstants.EVENT_DATA_STALL_ALARM: 668 onDataStallAlarm(msg.arg1); 669 break; 670 671 case DctConstants.EVENT_ROAMING_OFF: 672 onRoamingOff(); 673 break; 674 675 case DctConstants.EVENT_ROAMING_ON: 676 onRoamingOn(); 677 break; 678 679 case DctConstants.EVENT_RADIO_AVAILABLE: 680 onRadioAvailable(); 681 break; 682 683 case DctConstants.EVENT_RADIO_OFF_OR_NOT_AVAILABLE: 684 onRadioOffOrNotAvailable(); 685 break; 686 687 case DctConstants.EVENT_DATA_SETUP_COMPLETE: 688 mCidActive = msg.arg1; 689 onDataSetupComplete((AsyncResult) msg.obj); 690 break; 691 692 case DctConstants.EVENT_DATA_SETUP_COMPLETE_ERROR: 693 onDataSetupCompleteError((AsyncResult) msg.obj); 694 break; 695 696 case DctConstants.EVENT_DISCONNECT_DONE: 697 log("DataConnectionTracker.handleMessage: EVENT_DISCONNECT_DONE msg=" + msg); 698 onDisconnectDone(msg.arg1, (AsyncResult) msg.obj); 699 break; 700 701 case DctConstants.EVENT_DISCONNECT_DC_RETRYING: 702 log("DataConnectionTracker.handleMessage: EVENT_DISCONNECT_DC_RETRYING msg=" + msg); 703 onDisconnectDcRetrying(msg.arg1, (AsyncResult) msg.obj); 704 break; 705 706 case DctConstants.EVENT_VOICE_CALL_STARTED: 707 onVoiceCallStarted(); 708 break; 709 710 case DctConstants.EVENT_VOICE_CALL_ENDED: 711 onVoiceCallEnded(); 712 break; 713 714 case DctConstants.EVENT_CLEAN_UP_ALL_CONNECTIONS: { 715 onCleanUpAllConnections((String) msg.obj); 716 break; 717 } 718 case DctConstants.EVENT_CLEAN_UP_CONNECTION: { 719 boolean tearDown = (msg.arg1 == 0) ? false : true; 720 onCleanUpConnection(tearDown, msg.arg2, (String) msg.obj); 721 break; 722 } 723 case DctConstants.EVENT_SET_INTERNAL_DATA_ENABLE: { 724 boolean enabled = (msg.arg1 == DctConstants.ENABLED) ? true : false; 725 onSetInternalDataEnabled(enabled); 726 break; 727 } 728 case DctConstants.EVENT_RESET_DONE: { 729 if (DBG) log("EVENT_RESET_DONE"); 730 onResetDone((AsyncResult) msg.obj); 731 break; 732 } 733 case DctConstants.CMD_SET_USER_DATA_ENABLE: { 734 final boolean enabled = (msg.arg1 == DctConstants.ENABLED) ? true : false; 735 if (DBG) log("CMD_SET_USER_DATA_ENABLE enabled=" + enabled); 736 onSetUserDataEnabled(enabled); 737 break; 738 } 739 case DctConstants.CMD_SET_DEPENDENCY_MET: { 740 boolean met = (msg.arg1 == DctConstants.ENABLED) ? true : false; 741 if (DBG) log("CMD_SET_DEPENDENCY_MET met=" + met); 742 Bundle bundle = msg.getData(); 743 if (bundle != null) { 744 String apnType = (String)bundle.get(DctConstants.APN_TYPE_KEY); 745 if (apnType != null) { 746 onSetDependencyMet(apnType, met); 747 } 748 } 749 break; 750 } 751 case DctConstants.CMD_SET_POLICY_DATA_ENABLE: { 752 final boolean enabled = (msg.arg1 == DctConstants.ENABLED) ? true : false; 753 onSetPolicyDataEnabled(enabled); 754 break; 755 } 756 case DctConstants.CMD_SET_ENABLE_FAIL_FAST_MOBILE_DATA: { 757 final boolean enabled = (msg.arg1 == DctConstants.ENABLED) ? true : false; 758 if (DBG) log("CMD_SET_ENABLE_FAIL_FAST_MOBILE_DATA: enabled=" + enabled); 759 if (mFailFast != enabled) { 760 mFailFast = enabled; 761 mDataStallDetectionEnabled = !enabled; 762 if (mDataStallDetectionEnabled 763 && (getOverallState() == DctConstants.State.CONNECTED) 764 && (!mInVoiceCall || 765 mPhone.getServiceStateTracker() 766 .isConcurrentVoiceAndDataAllowed())) { 767 if (DBG) log("CMD_SET_ENABLE_FAIL_FAST_MOBILE_DATA: start data stall"); 768 stopDataStallAlarm(); 769 startDataStallAlarm(DATA_STALL_NOT_SUSPECTED); 770 } else { 771 if (DBG) log("CMD_SET_ENABLE_FAIL_FAST_MOBILE_DATA: stop data stall"); 772 stopDataStallAlarm(); 773 } 774 } 775 776 break; 777 } 778 case DctConstants.EVENT_ICC_CHANGED: { 779 onUpdateIcc(); 780 break; 781 } 782 default: 783 Rlog.e("DATA", "Unidentified event msg=" + msg); 784 break; 785 } 786 } 787 788 /** 789 * Report on whether data connectivity is enabled 790 * 791 * @return {@code false} if data connectivity has been explicitly disabled, 792 * {@code true} otherwise. 793 */ 794 public boolean getAnyDataEnabled() { 795 final boolean result; 796 synchronized (mDataEnabledLock) { 797 result = (mInternalDataEnabled && mUserDataEnabled && sPolicyDataEnabled 798 && (mEnabledCount != 0)); 799 } 800 if (!result && DBG) log("getAnyDataEnabled " + result); 801 return result; 802 } 803 804 protected boolean isEmergency() { 805 final boolean result; 806 synchronized (mDataEnabledLock) { 807 result = mPhone.isInEcm() || mPhone.isInEmergencyCall(); 808 } 809 log("isEmergency: result=" + result); 810 return result; 811 } 812 813 protected int apnTypeToId(String type) { 814 if (TextUtils.equals(type, PhoneConstants.APN_TYPE_DEFAULT)) { 815 return DctConstants.APN_DEFAULT_ID; 816 } else if (TextUtils.equals(type, PhoneConstants.APN_TYPE_MMS)) { 817 return DctConstants.APN_MMS_ID; 818 } else if (TextUtils.equals(type, PhoneConstants.APN_TYPE_SUPL)) { 819 return DctConstants.APN_SUPL_ID; 820 } else if (TextUtils.equals(type, PhoneConstants.APN_TYPE_DUN)) { 821 return DctConstants.APN_DUN_ID; 822 } else if (TextUtils.equals(type, PhoneConstants.APN_TYPE_HIPRI)) { 823 return DctConstants.APN_HIPRI_ID; 824 } else if (TextUtils.equals(type, PhoneConstants.APN_TYPE_IMS)) { 825 return DctConstants.APN_IMS_ID; 826 } else if (TextUtils.equals(type, PhoneConstants.APN_TYPE_FOTA)) { 827 return DctConstants.APN_FOTA_ID; 828 } else if (TextUtils.equals(type, PhoneConstants.APN_TYPE_CBS)) { 829 return DctConstants.APN_CBS_ID; 830 } else { 831 return DctConstants.APN_INVALID_ID; 832 } 833 } 834 835 protected String apnIdToType(int id) { 836 switch (id) { 837 case DctConstants.APN_DEFAULT_ID: 838 return PhoneConstants.APN_TYPE_DEFAULT; 839 case DctConstants.APN_MMS_ID: 840 return PhoneConstants.APN_TYPE_MMS; 841 case DctConstants.APN_SUPL_ID: 842 return PhoneConstants.APN_TYPE_SUPL; 843 case DctConstants.APN_DUN_ID: 844 return PhoneConstants.APN_TYPE_DUN; 845 case DctConstants.APN_HIPRI_ID: 846 return PhoneConstants.APN_TYPE_HIPRI; 847 case DctConstants.APN_IMS_ID: 848 return PhoneConstants.APN_TYPE_IMS; 849 case DctConstants.APN_FOTA_ID: 850 return PhoneConstants.APN_TYPE_FOTA; 851 case DctConstants.APN_CBS_ID: 852 return PhoneConstants.APN_TYPE_CBS; 853 default: 854 log("Unknown id (" + id + ") in apnIdToType"); 855 return PhoneConstants.APN_TYPE_DEFAULT; 856 } 857 } 858 859 public LinkProperties getLinkProperties(String apnType) { 860 int id = apnTypeToId(apnType); 861 862 if (isApnIdEnabled(id)) { 863 DcAsyncChannel dcac = mDataConnectionAcHashMap.get(0); 864 return dcac.getLinkPropertiesSync(); 865 } else { 866 return new LinkProperties(); 867 } 868 } 869 870 public LinkCapabilities getLinkCapabilities(String apnType) { 871 int id = apnTypeToId(apnType); 872 if (isApnIdEnabled(id)) { 873 DcAsyncChannel dcac = mDataConnectionAcHashMap.get(0); 874 return dcac.getLinkCapabilitiesSync(); 875 } else { 876 return new LinkCapabilities(); 877 } 878 } 879 880 // tell all active apns of the current condition 881 protected void notifyDataConnection(String reason) { 882 for (int id = 0; id < DctConstants.APN_NUM_TYPES; id++) { 883 if (mDataEnabled[id]) { 884 mPhone.notifyDataConnection(reason, apnIdToType(id)); 885 } 886 } 887 notifyOffApnsOfAvailability(reason); 888 } 889 890 // a new APN has gone active and needs to send events to catch up with the 891 // current condition 892 private void notifyApnIdUpToCurrent(String reason, int apnId) { 893 switch (mState) { 894 case IDLE: 895 break; 896 case RETRYING: 897 case CONNECTING: 898 case SCANNING: 899 mPhone.notifyDataConnection(reason, apnIdToType(apnId), 900 PhoneConstants.DataState.CONNECTING); 901 break; 902 case CONNECTED: 903 case DISCONNECTING: 904 mPhone.notifyDataConnection(reason, apnIdToType(apnId), 905 PhoneConstants.DataState.CONNECTING); 906 mPhone.notifyDataConnection(reason, apnIdToType(apnId), 907 PhoneConstants.DataState.CONNECTED); 908 break; 909 default: 910 // Ignore 911 break; 912 } 913 } 914 915 // since we normally don't send info to a disconnected APN, we need to do this specially 916 private void notifyApnIdDisconnected(String reason, int apnId) { 917 mPhone.notifyDataConnection(reason, apnIdToType(apnId), 918 PhoneConstants.DataState.DISCONNECTED); 919 } 920 921 // disabled apn's still need avail/unavail notificiations - send them out 922 protected void notifyOffApnsOfAvailability(String reason) { 923 if (DBG) log("notifyOffApnsOfAvailability - reason= " + reason); 924 for (int id = 0; id < DctConstants.APN_NUM_TYPES; id++) { 925 if (!isApnIdEnabled(id)) { 926 notifyApnIdDisconnected(reason, id); 927 } 928 } 929 } 930 931 public boolean isApnTypeEnabled(String apnType) { 932 if (apnType == null) { 933 return false; 934 } else { 935 return isApnIdEnabled(apnTypeToId(apnType)); 936 } 937 } 938 939 protected synchronized boolean isApnIdEnabled(int id) { 940 if (id != DctConstants.APN_INVALID_ID) { 941 return mDataEnabled[id]; 942 } 943 return false; 944 } 945 946 /** 947 * Ensure that we are connected to an APN of the specified type. 948 * 949 * @param type the APN type (currently the only valid values are 950 * {@link PhoneConstants#APN_TYPE_MMS} and {@link PhoneConstants#APN_TYPE_SUPL}) 951 * @return Success is indicated by {@code Phone.APN_ALREADY_ACTIVE} or 952 * {@code Phone.APN_REQUEST_STARTED}. In the latter case, a 953 * broadcast will be sent by the ConnectivityManager when a 954 * connection to the APN has been established. 955 */ 956 public synchronized int enableApnType(String type) { 957 int id = apnTypeToId(type); 958 if (id == DctConstants.APN_INVALID_ID) { 959 return PhoneConstants.APN_REQUEST_FAILED; 960 } 961 962 if (DBG) { 963 log("enableApnType(" + type + "), isApnTypeActive = " + isApnTypeActive(type) 964 + ", isApnIdEnabled =" + isApnIdEnabled(id) + " and state = " + mState); 965 } 966 967 if (!isApnTypeAvailable(type)) { 968 if (DBG) log("type not available"); 969 return PhoneConstants.APN_TYPE_NOT_AVAILABLE; 970 } 971 972 if (isApnIdEnabled(id)) { 973 return PhoneConstants.APN_ALREADY_ACTIVE; 974 } else { 975 setEnabled(id, true); 976 } 977 return PhoneConstants.APN_REQUEST_STARTED; 978 } 979 980 /** 981 * The APN of the specified type is no longer needed. Ensure that if use of 982 * the default APN has not been explicitly disabled, we are connected to the 983 * default APN. 984 * 985 * @param type the APN type. The only valid values are currently 986 * {@link PhoneConstants#APN_TYPE_MMS} and {@link PhoneConstants#APN_TYPE_SUPL}. 987 * @return Success is indicated by {@code PhoneConstants.APN_ALREADY_ACTIVE} or 988 * {@code PhoneConstants.APN_REQUEST_STARTED}. In the latter case, a 989 * broadcast will be sent by the ConnectivityManager when a 990 * connection to the APN has been disconnected. A {@code 991 * PhoneConstants.APN_REQUEST_FAILED} is returned if the type parameter is 992 * invalid or if the apn wasn't enabled. 993 */ 994 public synchronized int disableApnType(String type) { 995 if (DBG) log("disableApnType(" + type + ")"); 996 int id = apnTypeToId(type); 997 if (id == DctConstants.APN_INVALID_ID) { 998 return PhoneConstants.APN_REQUEST_FAILED; 999 } 1000 if (isApnIdEnabled(id)) { 1001 setEnabled(id, false); 1002 if (isApnTypeActive(PhoneConstants.APN_TYPE_DEFAULT)) { 1003 if (mDataEnabled[DctConstants.APN_DEFAULT_ID]) { 1004 return PhoneConstants.APN_ALREADY_ACTIVE; 1005 } else { 1006 return PhoneConstants.APN_REQUEST_STARTED; 1007 } 1008 } else { 1009 return PhoneConstants.APN_REQUEST_STARTED; 1010 } 1011 } else { 1012 return PhoneConstants.APN_REQUEST_FAILED; 1013 } 1014 } 1015 1016 protected void setEnabled(int id, boolean enable) { 1017 if (DBG) { 1018 log("setEnabled(" + id + ", " + enable + ") with old state = " + mDataEnabled[id] 1019 + " and enabledCount = " + mEnabledCount); 1020 } 1021 Message msg = obtainMessage(DctConstants.EVENT_ENABLE_NEW_APN); 1022 msg.arg1 = id; 1023 msg.arg2 = (enable ? DctConstants.ENABLED : DctConstants.DISABLED); 1024 sendMessage(msg); 1025 } 1026 1027 protected void onEnableApn(int apnId, int enabled) { 1028 if (DBG) { 1029 log("EVENT_APN_ENABLE_REQUEST apnId=" + apnId + ", apnType=" + apnIdToType(apnId) + 1030 ", enabled=" + enabled + ", dataEnabled = " + mDataEnabled[apnId] + 1031 ", enabledCount = " + mEnabledCount + ", isApnTypeActive = " + 1032 isApnTypeActive(apnIdToType(apnId))); 1033 } 1034 if (enabled == DctConstants.ENABLED) { 1035 synchronized (this) { 1036 if (!mDataEnabled[apnId]) { 1037 mDataEnabled[apnId] = true; 1038 mEnabledCount++; 1039 } 1040 } 1041 String type = apnIdToType(apnId); 1042 if (!isApnTypeActive(type)) { 1043 mRequestedApnType = type; 1044 onEnableNewApn(); 1045 } else { 1046 notifyApnIdUpToCurrent(Phone.REASON_APN_SWITCHED, apnId); 1047 } 1048 } else { 1049 // disable 1050 boolean didDisable = false; 1051 synchronized (this) { 1052 if (mDataEnabled[apnId]) { 1053 mDataEnabled[apnId] = false; 1054 mEnabledCount--; 1055 didDisable = true; 1056 } 1057 } 1058 if (didDisable) { 1059 if ((mEnabledCount == 0) || (apnId == DctConstants.APN_DUN_ID)) { 1060 mRequestedApnType = PhoneConstants.APN_TYPE_DEFAULT; 1061 onCleanUpConnection(true, apnId, Phone.REASON_DATA_DISABLED); 1062 } 1063 1064 // send the disconnect msg manually, since the normal route wont send 1065 // it (it's not enabled) 1066 notifyApnIdDisconnected(Phone.REASON_DATA_DISABLED, apnId); 1067 if (mDataEnabled[DctConstants.APN_DEFAULT_ID] == true 1068 && !isApnTypeActive(PhoneConstants.APN_TYPE_DEFAULT)) { 1069 // TODO - this is an ugly way to restore the default conn - should be done 1070 // by a real contention manager and policy that disconnects the lower pri 1071 // stuff as enable requests come in and pops them back on as we disable back 1072 // down to the lower pri stuff 1073 mRequestedApnType = PhoneConstants.APN_TYPE_DEFAULT; 1074 onEnableNewApn(); 1075 } 1076 } 1077 } 1078 } 1079 1080 /** 1081 * Called when we switch APNs. 1082 * 1083 * mRequestedApnType is set prior to call 1084 * To be overridden. 1085 */ 1086 protected void onEnableNewApn() { 1087 } 1088 1089 /** 1090 * Called when EVENT_RESET_DONE is received so goto 1091 * IDLE state and send notifications to those interested. 1092 * 1093 * TODO - currently unused. Needs to be hooked into DataConnection cleanup 1094 * TODO - needs to pass some notion of which connection is reset.. 1095 */ 1096 protected void onResetDone(AsyncResult ar) { 1097 if (DBG) log("EVENT_RESET_DONE"); 1098 String reason = null; 1099 if (ar.userObj instanceof String) { 1100 reason = (String) ar.userObj; 1101 } 1102 gotoIdleAndNotifyDataConnection(reason); 1103 } 1104 1105 /** 1106 * Prevent mobile data connections from being established, or once again 1107 * allow mobile data connections. If the state toggles, then either tear 1108 * down or set up data, as appropriate to match the new state. 1109 * 1110 * @param enable indicates whether to enable ({@code true}) or disable ( 1111 * {@code false}) data 1112 * @return {@code true} if the operation succeeded 1113 */ 1114 public boolean setInternalDataEnabled(boolean enable) { 1115 if (DBG) 1116 log("setInternalDataEnabled(" + enable + ")"); 1117 1118 Message msg = obtainMessage(DctConstants.EVENT_SET_INTERNAL_DATA_ENABLE); 1119 msg.arg1 = (enable ? DctConstants.ENABLED : DctConstants.DISABLED); 1120 sendMessage(msg); 1121 return true; 1122 } 1123 1124 protected void onSetInternalDataEnabled(boolean enabled) { 1125 synchronized (mDataEnabledLock) { 1126 mInternalDataEnabled = enabled; 1127 if (enabled) { 1128 log("onSetInternalDataEnabled: changed to enabled, try to setup data call"); 1129 onTrySetupData(Phone.REASON_DATA_ENABLED); 1130 } else { 1131 log("onSetInternalDataEnabled: changed to disabled, cleanUpAllConnections"); 1132 cleanUpAllConnections(null); 1133 } 1134 } 1135 } 1136 1137 public void cleanUpAllConnections(String cause) { 1138 Message msg = obtainMessage(DctConstants.EVENT_CLEAN_UP_ALL_CONNECTIONS); 1139 msg.obj = cause; 1140 sendMessage(msg); 1141 } 1142 1143 public abstract boolean isDisconnected(); 1144 1145 protected void onSetUserDataEnabled(boolean enabled) { 1146 synchronized (mDataEnabledLock) { 1147 final boolean prevEnabled = getAnyDataEnabled(); 1148 if (mUserDataEnabled != enabled) { 1149 mUserDataEnabled = enabled; 1150 Settings.Global.putInt(mPhone.getContext().getContentResolver(), 1151 Settings.Global.MOBILE_DATA, enabled ? 1 : 0); 1152 if (getDataOnRoamingEnabled() == false && 1153 mPhone.getServiceState().getRoaming() == true) { 1154 if (enabled) { 1155 notifyOffApnsOfAvailability(Phone.REASON_ROAMING_ON); 1156 } else { 1157 notifyOffApnsOfAvailability(Phone.REASON_DATA_DISABLED); 1158 } 1159 } 1160 if (prevEnabled != getAnyDataEnabled()) { 1161 if (!prevEnabled) { 1162 onTrySetupData(Phone.REASON_DATA_ENABLED); 1163 } else { 1164 onCleanUpAllConnections(Phone.REASON_DATA_DISABLED); 1165 } 1166 } 1167 } 1168 } 1169 } 1170 1171 protected void onSetDependencyMet(String apnType, boolean met) { 1172 } 1173 1174 protected void onSetPolicyDataEnabled(boolean enabled) { 1175 synchronized (mDataEnabledLock) { 1176 final boolean prevEnabled = getAnyDataEnabled(); 1177 if (sPolicyDataEnabled != enabled) { 1178 sPolicyDataEnabled = enabled; 1179 if (prevEnabled != getAnyDataEnabled()) { 1180 if (!prevEnabled) { 1181 onTrySetupData(Phone.REASON_DATA_ENABLED); 1182 } else { 1183 onCleanUpAllConnections(Phone.REASON_DATA_DISABLED); 1184 } 1185 } 1186 } 1187 } 1188 } 1189 1190 protected String getReryConfig(boolean forDefault) { 1191 int nt = mPhone.getServiceState().getNetworkType(); 1192 1193 if ((nt == TelephonyManager.NETWORK_TYPE_CDMA) || 1194 (nt == TelephonyManager.NETWORK_TYPE_1xRTT) || 1195 (nt == TelephonyManager.NETWORK_TYPE_EVDO_0) || 1196 (nt == TelephonyManager.NETWORK_TYPE_EVDO_A) || 1197 (nt == TelephonyManager.NETWORK_TYPE_EVDO_B) || 1198 (nt == TelephonyManager.NETWORK_TYPE_EHRPD)) { 1199 // CDMA variant 1200 return SystemProperties.get("ro.cdma.data_retry_config"); 1201 } else { 1202 // Use GSM varient for all others. 1203 if (forDefault) { 1204 return SystemProperties.get("ro.gsm.data_retry_config"); 1205 } else { 1206 return SystemProperties.get("ro.gsm.2nd_data_retry_config"); 1207 } 1208 } 1209 } 1210 1211 protected void resetPollStats() { 1212 mTxPkts = -1; 1213 mRxPkts = -1; 1214 mNetStatPollPeriod = POLL_NETSTAT_MILLIS; 1215 } 1216 1217 protected abstract DctConstants.State getOverallState(); 1218 1219 protected void startNetStatPoll() { 1220 if (getOverallState() == DctConstants.State.CONNECTED 1221 && mNetStatPollEnabled == false) { 1222 if (DBG) log("startNetStatPoll"); 1223 resetPollStats(); 1224 mNetStatPollEnabled = true; 1225 mPollNetStat.run(); 1226 } 1227 } 1228 1229 protected void stopNetStatPoll() { 1230 mNetStatPollEnabled = false; 1231 removeCallbacks(mPollNetStat); 1232 if (DBG) log("stopNetStatPoll"); 1233 } 1234 1235 public void updateDataActivity() { 1236 long sent, received; 1237 1238 DctConstants.Activity newActivity; 1239 1240 TxRxSum preTxRxSum = new TxRxSum(mTxPkts, mRxPkts); 1241 TxRxSum curTxRxSum = new TxRxSum(); 1242 curTxRxSum.updateTxRxSum(); 1243 mTxPkts = curTxRxSum.txPkts; 1244 mRxPkts = curTxRxSum.rxPkts; 1245 1246 if (VDBG) { 1247 log("updateDataActivity: curTxRxSum=" + curTxRxSum + " preTxRxSum=" + preTxRxSum); 1248 } 1249 1250 if (mNetStatPollEnabled && (preTxRxSum.txPkts > 0 || preTxRxSum.rxPkts > 0)) { 1251 sent = mTxPkts - preTxRxSum.txPkts; 1252 received = mRxPkts - preTxRxSum.rxPkts; 1253 1254 if (VDBG) 1255 log("updateDataActivity: sent=" + sent + " received=" + received); 1256 if (sent > 0 && received > 0) { 1257 newActivity = DctConstants.Activity.DATAINANDOUT; 1258 } else if (sent > 0 && received == 0) { 1259 newActivity = DctConstants.Activity.DATAOUT; 1260 } else if (sent == 0 && received > 0) { 1261 newActivity = DctConstants.Activity.DATAIN; 1262 } else { 1263 newActivity = (mActivity == DctConstants.Activity.DORMANT) ? 1264 mActivity : DctConstants.Activity.NONE; 1265 } 1266 1267 if (mActivity != newActivity && mIsScreenOn) { 1268 if (VDBG) 1269 log("updateDataActivity: newActivity=" + newActivity); 1270 mActivity = newActivity; 1271 mPhone.notifyDataActivity(); 1272 } 1273 } 1274 } 1275 1276 // Recovery action taken in case of data stall 1277 protected static class RecoveryAction { 1278 public static final int GET_DATA_CALL_LIST = 0; 1279 public static final int CLEANUP = 1; 1280 public static final int REREGISTER = 2; 1281 public static final int RADIO_RESTART = 3; 1282 public static final int RADIO_RESTART_WITH_PROP = 4; 1283 1284 private static boolean isAggressiveRecovery(int value) { 1285 return ((value == RecoveryAction.CLEANUP) || 1286 (value == RecoveryAction.REREGISTER) || 1287 (value == RecoveryAction.RADIO_RESTART) || 1288 (value == RecoveryAction.RADIO_RESTART_WITH_PROP)); 1289 } 1290 } 1291 1292 public int getRecoveryAction() { 1293 int action = Settings.System.getInt(mPhone.getContext().getContentResolver(), 1294 "radio.data.stall.recovery.action", RecoveryAction.GET_DATA_CALL_LIST); 1295 if (VDBG_STALL) log("getRecoveryAction: " + action); 1296 return action; 1297 } 1298 public void putRecoveryAction(int action) { 1299 Settings.System.putInt(mPhone.getContext().getContentResolver(), 1300 "radio.data.stall.recovery.action", action); 1301 if (VDBG_STALL) log("putRecoveryAction: " + action); 1302 } 1303 1304 protected boolean isConnected() { 1305 return false; 1306 } 1307 1308 protected void doRecovery() { 1309 if (getOverallState() == DctConstants.State.CONNECTED) { 1310 // Go through a series of recovery steps, each action transitions to the next action 1311 int recoveryAction = getRecoveryAction(); 1312 switch (recoveryAction) { 1313 case RecoveryAction.GET_DATA_CALL_LIST: 1314 EventLog.writeEvent(EventLogTags.DATA_STALL_RECOVERY_GET_DATA_CALL_LIST, 1315 mSentSinceLastRecv); 1316 if (DBG) log("doRecovery() get data call list"); 1317 mPhone.mCi.getDataCallList(obtainMessage(DctConstants.EVENT_DATA_STATE_CHANGED)); 1318 putRecoveryAction(RecoveryAction.CLEANUP); 1319 break; 1320 case RecoveryAction.CLEANUP: 1321 EventLog.writeEvent(EventLogTags.DATA_STALL_RECOVERY_CLEANUP, mSentSinceLastRecv); 1322 if (DBG) log("doRecovery() cleanup all connections"); 1323 cleanUpAllConnections(Phone.REASON_PDP_RESET); 1324 putRecoveryAction(RecoveryAction.REREGISTER); 1325 break; 1326 case RecoveryAction.REREGISTER: 1327 EventLog.writeEvent(EventLogTags.DATA_STALL_RECOVERY_REREGISTER, 1328 mSentSinceLastRecv); 1329 if (DBG) log("doRecovery() re-register"); 1330 mPhone.getServiceStateTracker().reRegisterNetwork(null); 1331 putRecoveryAction(RecoveryAction.RADIO_RESTART); 1332 break; 1333 case RecoveryAction.RADIO_RESTART: 1334 EventLog.writeEvent(EventLogTags.DATA_STALL_RECOVERY_RADIO_RESTART, 1335 mSentSinceLastRecv); 1336 if (DBG) log("restarting radio"); 1337 putRecoveryAction(RecoveryAction.RADIO_RESTART_WITH_PROP); 1338 restartRadio(); 1339 break; 1340 case RecoveryAction.RADIO_RESTART_WITH_PROP: 1341 // This is in case radio restart has not recovered the data. 1342 // It will set an additional "gsm.radioreset" property to tell 1343 // RIL or system to take further action. 1344 // The implementation of hard reset recovery action is up to OEM product. 1345 // Once RADIO_RESET property is consumed, it is expected to set back 1346 // to false by RIL. 1347 EventLog.writeEvent(EventLogTags.DATA_STALL_RECOVERY_RADIO_RESTART_WITH_PROP, -1); 1348 if (DBG) log("restarting radio with gsm.radioreset to true"); 1349 SystemProperties.set(RADIO_RESET_PROPERTY, "true"); 1350 // give 1 sec so property change can be notified. 1351 try { 1352 Thread.sleep(1000); 1353 } catch (InterruptedException e) {} 1354 restartRadio(); 1355 putRecoveryAction(RecoveryAction.GET_DATA_CALL_LIST); 1356 break; 1357 default: 1358 throw new RuntimeException("doRecovery: Invalid recoveryAction=" + 1359 recoveryAction); 1360 } 1361 mSentSinceLastRecv = 0; 1362 } 1363 } 1364 1365 private void updateDataStallInfo() { 1366 long sent, received; 1367 1368 TxRxSum preTxRxSum = new TxRxSum(mDataStallTxRxSum); 1369 mDataStallTxRxSum.updateTxRxSum(); 1370 1371 if (VDBG_STALL) { 1372 log("updateDataStallInfo: mDataStallTxRxSum=" + mDataStallTxRxSum + 1373 " preTxRxSum=" + preTxRxSum); 1374 } 1375 1376 sent = mDataStallTxRxSum.txPkts - preTxRxSum.txPkts; 1377 received = mDataStallTxRxSum.rxPkts - preTxRxSum.rxPkts; 1378 1379 if (RADIO_TESTS) { 1380 if (SystemProperties.getBoolean("radio.test.data.stall", false)) { 1381 log("updateDataStallInfo: radio.test.data.stall true received = 0;"); 1382 received = 0; 1383 } 1384 } 1385 if ( sent > 0 && received > 0 ) { 1386 if (VDBG_STALL) log("updateDataStallInfo: IN/OUT"); 1387 mSentSinceLastRecv = 0; 1388 putRecoveryAction(RecoveryAction.GET_DATA_CALL_LIST); 1389 } else if (sent > 0 && received == 0) { 1390 if (mPhone.getState() == PhoneConstants.State.IDLE) { 1391 mSentSinceLastRecv += sent; 1392 } else { 1393 mSentSinceLastRecv = 0; 1394 } 1395 if (DBG) { 1396 log("updateDataStallInfo: OUT sent=" + sent + 1397 " mSentSinceLastRecv=" + mSentSinceLastRecv); 1398 } 1399 } else if (sent == 0 && received > 0) { 1400 if (VDBG_STALL) log("updateDataStallInfo: IN"); 1401 mSentSinceLastRecv = 0; 1402 putRecoveryAction(RecoveryAction.GET_DATA_CALL_LIST); 1403 } else { 1404 if (VDBG_STALL) log("updateDataStallInfo: NONE"); 1405 } 1406 } 1407 1408 protected void onDataStallAlarm(int tag) { 1409 if (mDataStallAlarmTag != tag) { 1410 if (DBG) { 1411 log("onDataStallAlarm: ignore, tag=" + tag + " expecting " + mDataStallAlarmTag); 1412 } 1413 return; 1414 } 1415 updateDataStallInfo(); 1416 1417 int hangWatchdogTrigger = Settings.Global.getInt(mResolver, 1418 Settings.Global.PDP_WATCHDOG_TRIGGER_PACKET_COUNT, 1419 NUMBER_SENT_PACKETS_OF_HANG); 1420 1421 boolean suspectedStall = DATA_STALL_NOT_SUSPECTED; 1422 if (mSentSinceLastRecv >= hangWatchdogTrigger) { 1423 if (DBG) { 1424 log("onDataStallAlarm: tag=" + tag + " do recovery action=" + getRecoveryAction()); 1425 } 1426 suspectedStall = DATA_STALL_SUSPECTED; 1427 sendMessage(obtainMessage(DctConstants.EVENT_DO_RECOVERY)); 1428 } else { 1429 if (VDBG_STALL) { 1430 log("onDataStallAlarm: tag=" + tag + " Sent " + String.valueOf(mSentSinceLastRecv) + 1431 " pkts since last received, < watchdogTrigger=" + hangWatchdogTrigger); 1432 } 1433 } 1434 startDataStallAlarm(suspectedStall); 1435 } 1436 1437 protected void startDataStallAlarm(boolean suspectedStall) { 1438 int nextAction = getRecoveryAction(); 1439 int delayInMs; 1440 1441 if (mDataStallDetectionEnabled && getOverallState() == DctConstants.State.CONNECTED) { 1442 // If screen is on or data stall is currently suspected, set the alarm 1443 // with an aggresive timeout. 1444 if (mIsScreenOn || suspectedStall || RecoveryAction.isAggressiveRecovery(nextAction)) { 1445 delayInMs = Settings.Global.getInt(mResolver, 1446 Settings.Global.DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS, 1447 DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS_DEFAULT); 1448 } else { 1449 delayInMs = Settings.Global.getInt(mResolver, 1450 Settings.Global.DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS, 1451 DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS_DEFAULT); 1452 } 1453 1454 mDataStallAlarmTag += 1; 1455 if (VDBG_STALL) { 1456 log("startDataStallAlarm: tag=" + mDataStallAlarmTag + 1457 " delay=" + (delayInMs / 1000) + "s"); 1458 } 1459 Intent intent = new Intent(INTENT_DATA_STALL_ALARM); 1460 intent.putExtra(DATA_STALL_ALARM_TAG_EXTRA, mDataStallAlarmTag); 1461 mDataStallAlarmIntent = PendingIntent.getBroadcast(mPhone.getContext(), 0, intent, 1462 PendingIntent.FLAG_UPDATE_CURRENT); 1463 mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, 1464 SystemClock.elapsedRealtime() + delayInMs, mDataStallAlarmIntent); 1465 } else { 1466 if (VDBG_STALL) { 1467 log("startDataStallAlarm: NOT started, no connection tag=" + mDataStallAlarmTag); 1468 } 1469 } 1470 } 1471 1472 protected void stopDataStallAlarm() { 1473 if (VDBG_STALL) { 1474 log("stopDataStallAlarm: current tag=" + mDataStallAlarmTag + 1475 " mDataStallAlarmIntent=" + mDataStallAlarmIntent); 1476 } 1477 mDataStallAlarmTag += 1; 1478 if (mDataStallAlarmIntent != null) { 1479 mAlarmManager.cancel(mDataStallAlarmIntent); 1480 mDataStallAlarmIntent = null; 1481 } 1482 } 1483 1484 protected void restartDataStallAlarm() { 1485 if (isConnected() == false) return; 1486 // To be called on screen status change. 1487 // Do not cancel the alarm if it is set with aggressive timeout. 1488 int nextAction = getRecoveryAction(); 1489 1490 if (RecoveryAction.isAggressiveRecovery(nextAction)) { 1491 if (DBG) log("restartDataStallAlarm: action is pending. not resetting the alarm."); 1492 return; 1493 } 1494 if (VDBG_STALL) log("restartDataStallAlarm: stop then start."); 1495 stopDataStallAlarm(); 1496 startDataStallAlarm(DATA_STALL_NOT_SUSPECTED); 1497 } 1498 1499 void sendCleanUpConnection(boolean tearDown, ApnContext apnContext) { 1500 if (DBG)log("sendCleanUpConnection: tearDown=" + tearDown + " apnContext=" + apnContext); 1501 Message msg = obtainMessage(DctConstants.EVENT_CLEAN_UP_CONNECTION); 1502 msg.arg1 = tearDown ? 1 : 0; 1503 msg.arg2 = 0; 1504 msg.obj = apnContext; 1505 sendMessage(msg); 1506 } 1507 1508 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 1509 pw.println("DataConnectionTrackerBase:"); 1510 pw.println(" RADIO_TESTS=" + RADIO_TESTS); 1511 pw.println(" mInternalDataEnabled=" + mInternalDataEnabled); 1512 pw.println(" mUserDataEnabled=" + mUserDataEnabled); 1513 pw.println(" sPolicyDataEnabed=" + sPolicyDataEnabled); 1514 pw.println(" mDataEnabled:"); 1515 for(int i=0; i < mDataEnabled.length; i++) { 1516 pw.printf(" mDataEnabled[%d]=%b\n", i, mDataEnabled[i]); 1517 } 1518 pw.flush(); 1519 pw.println(" mEnabledCount=" + mEnabledCount); 1520 pw.println(" mRequestedApnType=" + mRequestedApnType); 1521 pw.println(" mPhone=" + mPhone.getPhoneName()); 1522 pw.println(" mActivity=" + mActivity); 1523 pw.println(" mState=" + mState); 1524 pw.println(" mTxPkts=" + mTxPkts); 1525 pw.println(" mRxPkts=" + mRxPkts); 1526 pw.println(" mNetStatPollPeriod=" + mNetStatPollPeriod); 1527 pw.println(" mNetStatPollEnabled=" + mNetStatPollEnabled); 1528 pw.println(" mDataStallTxRxSum=" + mDataStallTxRxSum); 1529 pw.println(" mDataStallAlarmTag=" + mDataStallAlarmTag); 1530 pw.println(" mDataStallDetectionEanbled=" + mDataStallDetectionEnabled); 1531 pw.println(" mSentSinceLastRecv=" + mSentSinceLastRecv); 1532 pw.println(" mNoRecvPollCount=" + mNoRecvPollCount); 1533 pw.println(" mResolver=" + mResolver); 1534 pw.println(" mIsWifiConnected=" + mIsWifiConnected); 1535 pw.println(" mReconnectIntent=" + mReconnectIntent); 1536 pw.println(" mCidActive=" + mCidActive); 1537 pw.println(" mAutoAttachOnCreation=" + mAutoAttachOnCreation); 1538 pw.println(" mIsScreenOn=" + mIsScreenOn); 1539 pw.println(" mUniqueIdGenerator=" + mUniqueIdGenerator); 1540 pw.flush(); 1541 pw.println(" ***************************************"); 1542 DcController dcc = mDcc; 1543 if (dcc != null) { 1544 dcc.dump(fd, pw, args); 1545 } else { 1546 pw.println(" mDcc=null"); 1547 } 1548 pw.println(" ***************************************"); 1549 HashMap<Integer, DataConnection> dcs = mDataConnections; 1550 if (dcs != null) { 1551 Set<Entry<Integer, DataConnection> > mDcSet = mDataConnections.entrySet(); 1552 pw.println(" mDataConnections: count=" + mDcSet.size()); 1553 for (Entry<Integer, DataConnection> entry : mDcSet) { 1554 pw.printf(" *** mDataConnection[%d] \n", entry.getKey()); 1555 entry.getValue().dump(fd, pw, args); 1556 } 1557 } else { 1558 pw.println("mDataConnections=null"); 1559 } 1560 pw.println(" ***************************************"); 1561 pw.flush(); 1562 HashMap<String, Integer> apnToDcId = mApnToDataConnectionId; 1563 if (apnToDcId != null) { 1564 Set<Entry<String, Integer>> apnToDcIdSet = apnToDcId.entrySet(); 1565 pw.println(" mApnToDataConnectonId size=" + apnToDcIdSet.size()); 1566 for (Entry<String, Integer> entry : apnToDcIdSet) { 1567 pw.printf(" mApnToDataConnectonId[%s]=%d\n", entry.getKey(), entry.getValue()); 1568 } 1569 } else { 1570 pw.println("mApnToDataConnectionId=null"); 1571 } 1572 pw.println(" ***************************************"); 1573 pw.flush(); 1574 ConcurrentHashMap<String, ApnContext> apnCtxs = mApnContexts; 1575 if (apnCtxs != null) { 1576 Set<Entry<String, ApnContext>> apnCtxsSet = apnCtxs.entrySet(); 1577 pw.println(" mApnContexts size=" + apnCtxsSet.size()); 1578 for (Entry<String, ApnContext> entry : apnCtxsSet) { 1579 entry.getValue().dump(fd, pw, args); 1580 } 1581 pw.println(" ***************************************"); 1582 } else { 1583 pw.println(" mApnContexts=null"); 1584 } 1585 pw.flush(); 1586 pw.println(" mActiveApn=" + mActiveApn); 1587 ArrayList<ApnSetting> apnSettings = mAllApnSettings; 1588 if (apnSettings != null) { 1589 pw.println(" mAllApnSettings size=" + apnSettings.size()); 1590 for (int i=0; i < apnSettings.size(); i++) { 1591 pw.printf(" mAllApnSettings[%d]: %s\n", i, apnSettings.get(i)); 1592 } 1593 pw.flush(); 1594 } else { 1595 pw.println(" mAllApnSettings=null"); 1596 } 1597 pw.println(" mPreferredApn=" + mPreferredApn); 1598 pw.println(" mIsPsRestricted=" + mIsPsRestricted); 1599 pw.println(" mIsDisposed=" + mIsDisposed); 1600 pw.println(" mIntentReceiver=" + mIntentReceiver); 1601 pw.println(" mDataRoamingSettingObserver=" + mDataRoamingSettingObserver); 1602 pw.flush(); 1603 } 1604 } 1605
