GsmDataConnectionTracker.java revision 887f2e401edb84867b8ee4026306269abb0f909b
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 17package com.android.internal.telephony.gsm; 18 19import android.app.AlarmManager; 20import android.app.PendingIntent; 21import android.content.BroadcastReceiver; 22import android.content.ContentResolver; 23import android.content.ContentValues; 24import android.content.Context; 25import android.content.Intent; 26import android.content.IntentFilter; 27import android.content.SharedPreferences; 28import android.database.ContentObserver; 29import android.database.Cursor; 30import android.net.ConnectivityManager; 31import android.net.IConnectivityManager; 32import android.net.NetworkInfo; 33import android.net.TrafficStats; 34import android.net.Uri; 35import android.net.wifi.WifiManager; 36import android.os.AsyncResult; 37import android.os.Message; 38import android.os.RemoteException; 39import android.os.ServiceManager; 40import android.os.SystemClock; 41import android.os.SystemProperties; 42import android.preference.PreferenceManager; 43import android.provider.Settings; 44import android.provider.Telephony; 45import android.telephony.ServiceState; 46import android.telephony.TelephonyManager; 47import android.telephony.gsm.GsmCellLocation; 48import android.util.EventLog; 49import android.util.Log; 50 51import com.android.internal.R; 52import com.android.internal.telephony.DataCallState; 53import com.android.internal.telephony.DataConnection; 54import com.android.internal.telephony.DataConnectionTracker; 55import com.android.internal.telephony.Phone; 56import com.android.internal.telephony.RetryManager; 57import com.android.internal.telephony.EventLogTags; 58import com.android.internal.telephony.DataConnection.FailCause; 59 60import java.io.IOException; 61import java.util.ArrayList; 62 63/** 64 * {@hide} 65 */ 66public final class GsmDataConnectionTracker extends DataConnectionTracker { 67 protected final String LOG_TAG = "GSM"; 68 69 private GSMPhone mGsmPhone; 70 /** 71 * Handles changes to the APN db. 72 */ 73 private class ApnChangeObserver extends ContentObserver { 74 public ApnChangeObserver () { 75 super(mDataConnectionTracker); 76 } 77 78 @Override 79 public void onChange(boolean selfChange) { 80 sendMessage(obtainMessage(EVENT_APN_CHANGED)); 81 } 82 } 83 84 //***** Instance Variables 85 86 // Indicates baseband will not auto-attach 87 private boolean noAutoAttach = false; 88 89 private boolean mReregisterOnReconnectFailure = false; 90 private ContentResolver mResolver; 91 92 private boolean mPingTestActive = false; 93 // Count of PDP reset attempts; reset when we see incoming, 94 // call reRegisterNetwork, or pingTest succeeds. 95 private int mPdpResetCount = 0; 96 private boolean mIsScreenOn = true; 97 98 /** Delay between APN attempts */ 99 protected static final int APN_DELAY_MILLIS = 5000; 100 101 //useful for debugging 102 boolean failNextConnect = false; 103 104 /** 105 * allApns holds all apns for this sim spn, retrieved from 106 * the Carrier DB. 107 * 108 * Create once after simcard info is loaded 109 */ 110 private ArrayList<ApnSetting> allApns = null; 111 112 /** 113 * waitingApns holds all apns that are waiting to be connected 114 * 115 * It is a subset of allApns and has the same format 116 */ 117 private ArrayList<ApnSetting> waitingApns = null; 118 119 private ApnSetting preferredApn = null; 120 121 /* Currently active APN */ 122 protected ApnSetting mActiveApn; 123 124 /** 125 * pdpList holds all the PDP connection, i.e. IP Link in GPRS 126 */ 127 private ArrayList<DataConnection> pdpList; 128 129 /** Currently active DataConnection */ 130 private GsmDataConnection mActivePdp; 131 132 /** Is packet service restricted by network */ 133 private boolean mIsPsRestricted = false; 134 135 //***** Constants 136 137 // TODO: Increase this to match the max number of simultaneous 138 // PDP contexts we plan to support. 139 /** 140 * Pool size of DataConnection objects. 141 */ 142 private static final int PDP_CONNECTION_POOL_SIZE = 1; 143 144 private static final int POLL_PDP_MILLIS = 5 * 1000; 145 146 private static final String INTENT_RECONNECT_ALARM = "com.android.internal.telephony.gprs-reconnect"; 147 private static final String INTENT_RECONNECT_ALARM_EXTRA_REASON = "reason"; 148 149 static final Uri PREFERAPN_URI = Uri.parse("content://telephony/carriers/preferapn"); 150 static final String APN_ID = "apn_id"; 151 private boolean canSetPreferApn = false; 152 153 // for tracking retries on the default APN 154 private RetryManager mDefaultRetryManager; 155 // for tracking retries on a secondary APN 156 private RetryManager mSecondaryRetryManager; 157 158 BroadcastReceiver mIntentReceiver = new BroadcastReceiver () 159 { 160 @Override 161 public void onReceive(Context context, Intent intent) 162 { 163 String action = intent.getAction(); 164 if (action.equals(Intent.ACTION_SCREEN_ON)) { 165 mIsScreenOn = true; 166 stopNetStatPoll(); 167 startNetStatPoll(); 168 } else if (action.equals(Intent.ACTION_SCREEN_OFF)) { 169 mIsScreenOn = false; 170 stopNetStatPoll(); 171 startNetStatPoll(); 172 } else if (action.equals((INTENT_RECONNECT_ALARM))) { 173 Log.d(LOG_TAG, "GPRS reconnect alarm. Previous state was " + state); 174 175 String reason = intent.getStringExtra(INTENT_RECONNECT_ALARM_EXTRA_REASON); 176 if (state == State.FAILED) { 177 Message msg = obtainMessage(EVENT_CLEAN_UP_CONNECTION); 178 msg.arg1 = 0; // tearDown is false 179 msg.obj = (String) reason; 180 sendMessage(msg); 181 } 182 sendMessage(obtainMessage(EVENT_TRY_SETUP_DATA)); 183 } else if (action.equals(WifiManager.NETWORK_STATE_CHANGED_ACTION)) { 184 final android.net.NetworkInfo networkInfo = (NetworkInfo) 185 intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO); 186 mIsWifiConnected = (networkInfo != null && networkInfo.isConnected()); 187 } else if (action.equals(WifiManager.WIFI_STATE_CHANGED_ACTION)) { 188 final boolean enabled = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE, 189 WifiManager.WIFI_STATE_UNKNOWN) == WifiManager.WIFI_STATE_ENABLED; 190 191 if (!enabled) { 192 // when wifi got disabled, the NETWORK_STATE_CHANGED_ACTION 193 // quit and won't report disconnected til next enabling. 194 mIsWifiConnected = false; 195 } 196 } 197 } 198 }; 199 200 /** Watches for changes to the APN db. */ 201 private ApnChangeObserver apnObserver; 202 203 //***** Constructor 204 205 GsmDataConnectionTracker(GSMPhone p) { 206 super(p); 207 mGsmPhone = p; 208 p.mCM.registerForAvailable (this, EVENT_RADIO_AVAILABLE, null); 209 p.mCM.registerForOffOrNotAvailable(this, EVENT_RADIO_OFF_OR_NOT_AVAILABLE, null); 210 p.mSIMRecords.registerForRecordsLoaded(this, EVENT_RECORDS_LOADED, null); 211 p.mCM.registerForDataStateChanged (this, EVENT_DATA_STATE_CHANGED, null); 212 p.mCT.registerForVoiceCallEnded (this, EVENT_VOICE_CALL_ENDED, null); 213 p.mCT.registerForVoiceCallStarted (this, EVENT_VOICE_CALL_STARTED, null); 214 p.mSST.registerForGprsAttached(this, EVENT_GPRS_ATTACHED, null); 215 p.mSST.registerForGprsDetached(this, EVENT_GPRS_DETACHED, null); 216 p.mSST.registerForRoamingOn(this, EVENT_ROAMING_ON, null); 217 p.mSST.registerForRoamingOff(this, EVENT_ROAMING_OFF, null); 218 p.mSST.registerForPsRestrictedEnabled(this, EVENT_PS_RESTRICT_ENABLED, null); 219 p.mSST.registerForPsRestrictedDisabled(this, EVENT_PS_RESTRICT_DISABLED, null); 220 221 IntentFilter filter = new IntentFilter(); 222 filter.addAction(INTENT_RECONNECT_ALARM); 223 filter.addAction(Intent.ACTION_SCREEN_ON); 224 filter.addAction(Intent.ACTION_SCREEN_OFF); 225 filter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION); 226 filter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION); 227 228 // TODO: Why is this registering the phone as the receiver of the intent 229 // and not its own handler? 230 p.getContext().registerReceiver(mIntentReceiver, filter, null, p); 231 232 233 mDataConnectionTracker = this; 234 mResolver = phone.getContext().getContentResolver(); 235 236 apnObserver = new ApnChangeObserver(); 237 p.getContext().getContentResolver().registerContentObserver( 238 Telephony.Carriers.CONTENT_URI, true, apnObserver); 239 240 createAllPdpList(); 241 242 // This preference tells us 1) initial condition for "dataEnabled", 243 // and 2) whether the RIL will setup the baseband to auto-PS attach. 244 SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(phone.getContext()); 245 boolean dataEnabledSetting = true; 246 try { 247 dataEnabledSetting = IConnectivityManager.Stub.asInterface(ServiceManager. 248 getService(Context.CONNECTIVITY_SERVICE)).getMobileDataEnabled(); 249 } catch (Exception e) { 250 // nothing to do - use the old behavior and leave data on 251 } 252 dataEnabled[APN_DEFAULT_ID] = !sp.getBoolean(GSMPhone.DATA_DISABLED_ON_BOOT_KEY, false) && 253 dataEnabledSetting; 254 if (dataEnabled[APN_DEFAULT_ID]) { 255 enabledCount++; 256 } 257 noAutoAttach = !dataEnabled[APN_DEFAULT_ID]; 258 259 if (!mRetryMgr.configure(SystemProperties.get("ro.gsm.data_retry_config"))) { 260 if (!mRetryMgr.configure(DEFAULT_DATA_RETRY_CONFIG)) { 261 // Should never happen, log an error and default to a simple linear sequence. 262 Log.e(LOG_TAG, "Could not configure using DEFAULT_DATA_RETRY_CONFIG=" 263 + DEFAULT_DATA_RETRY_CONFIG); 264 mRetryMgr.configure(20, 2000, 1000); 265 } 266 } 267 268 mDefaultRetryManager = mRetryMgr; 269 mSecondaryRetryManager = new RetryManager(); 270 271 if (!mSecondaryRetryManager.configure(SystemProperties.get( 272 "ro.gsm.2nd_data_retry_config"))) { 273 if (!mSecondaryRetryManager.configure(SECONDARY_DATA_RETRY_CONFIG)) { 274 // Should never happen, log an error and default to a simple sequence. 275 Log.e(LOG_TAG, "Could note configure using SECONDARY_DATA_RETRY_CONFIG=" 276 + SECONDARY_DATA_RETRY_CONFIG); 277 mSecondaryRetryManager.configure("max_retries=3, 333, 333, 333"); 278 } 279 } 280 } 281 282 public void dispose() { 283 //Unregister for all events 284 phone.mCM.unregisterForAvailable(this); 285 phone.mCM.unregisterForOffOrNotAvailable(this); 286 mGsmPhone.mSIMRecords.unregisterForRecordsLoaded(this); 287 phone.mCM.unregisterForDataStateChanged(this); 288 mGsmPhone.mCT.unregisterForVoiceCallEnded(this); 289 mGsmPhone.mCT.unregisterForVoiceCallStarted(this); 290 mGsmPhone.mSST.unregisterForGprsAttached(this); 291 mGsmPhone.mSST.unregisterForGprsDetached(this); 292 mGsmPhone.mSST.unregisterForRoamingOn(this); 293 mGsmPhone.mSST.unregisterForRoamingOff(this); 294 mGsmPhone.mSST.unregisterForPsRestrictedEnabled(this); 295 mGsmPhone.mSST.unregisterForPsRestrictedDisabled(this); 296 297 phone.getContext().unregisterReceiver(this.mIntentReceiver); 298 phone.getContext().getContentResolver().unregisterContentObserver(this.apnObserver); 299 300 destroyAllPdpList(); 301 } 302 303 protected void finalize() { 304 if(DBG) Log.d(LOG_TAG, "GsmDataConnectionTracker finalized"); 305 } 306 307 protected void setState(State s) { 308 if (DBG) log ("setState: " + s); 309 if (state != s) { 310 EventLog.writeEvent(EventLogTags.GSM_DATA_STATE_CHANGE, state.toString(), s.toString()); 311 state = s; 312 } 313 314 if (state == State.FAILED) { 315 if (waitingApns != null) 316 waitingApns.clear(); // when teardown the connection and set to IDLE 317 } 318 } 319 320 public String[] getActiveApnTypes() { 321 String[] result; 322 if (mActiveApn != null) { 323 result = mActiveApn.types; 324 } else { 325 result = new String[1]; 326 result[0] = Phone.APN_TYPE_DEFAULT; 327 } 328 return result; 329 } 330 331 protected String getActiveApnString() { 332 String result = null; 333 if (mActiveApn != null) { 334 result = mActiveApn.apn; 335 } 336 return result; 337 } 338 339 /** 340 * The data connection is expected to be setup while device 341 * 1. has sim card 342 * 2. registered to gprs service 343 * 3. user doesn't explicitly disable data service 344 * 4. wifi is not on 345 * 346 * @return false while no data connection if all above requirements are met. 347 */ 348 public boolean isDataConnectionAsDesired() { 349 boolean roaming = phone.getServiceState().getRoaming(); 350 351 if (mGsmPhone.mSIMRecords.getRecordsLoaded() && 352 mGsmPhone.mSST.getCurrentGprsState() == ServiceState.STATE_IN_SERVICE && 353 (!roaming || getDataOnRoamingEnabled()) && 354 !mIsWifiConnected && 355 !mIsPsRestricted ) { 356 return (state == State.CONNECTED); 357 } 358 return true; 359 } 360 361 @Override 362 protected boolean isApnTypeActive(String type) { 363 // TODO: support simultaneous with List instead 364 return mActiveApn != null && mActiveApn.canHandleType(type); 365 } 366 367 @Override 368 protected boolean isApnTypeAvailable(String type) { 369 if (type.equals(Phone.APN_TYPE_DUN)) { 370 return (fetchDunApn() != null); 371 } 372 373 if (allApns != null) { 374 for (ApnSetting apn : allApns) { 375 if (apn.canHandleType(type)) { 376 return true; 377 } 378 } 379 } 380 return false; 381 } 382 383 /** 384 * Formerly this method was ArrayList<GsmDataConnection> getAllPdps() 385 */ 386 public ArrayList<DataConnection> getAllDataConnections() { 387 ArrayList<DataConnection> pdps = (ArrayList<DataConnection>)pdpList.clone(); 388 return pdps; 389 } 390 391 private boolean isDataAllowed() { 392 boolean roaming = phone.getServiceState().getRoaming(); 393 return getAnyDataEnabled() && (!roaming || getDataOnRoamingEnabled()) && 394 mMasterDataEnabled; 395 } 396 397 //****** Called from ServiceStateTracker 398 /** 399 * Invoked when ServiceStateTracker observes a transition from GPRS 400 * attach to detach. 401 */ 402 protected void onGprsDetached() { 403 /* 404 * We presently believe it is unnecessary to tear down the PDP context 405 * when GPRS detaches, but we should stop the network polling. 406 */ 407 stopNetStatPoll(); 408 phone.notifyDataConnection(Phone.REASON_GPRS_DETACHED); 409 } 410 411 private void onGprsAttached() { 412 if (state == State.CONNECTED) { 413 startNetStatPoll(); 414 phone.notifyDataConnection(Phone.REASON_GPRS_ATTACHED); 415 } else { 416 if (state == State.FAILED) { 417 cleanUpConnection(false, Phone.REASON_GPRS_ATTACHED); 418 mRetryMgr.resetRetryCount(); 419 } 420 trySetupData(Phone.REASON_GPRS_ATTACHED); 421 } 422 } 423 424 private boolean trySetupData(String reason) { 425 if (DBG) log("***trySetupData due to " + (reason == null ? "(unspecified)" : reason)); 426 427 Log.d(LOG_TAG, "[DSAC DEB] " + "trySetupData with mIsPsRestricted=" + mIsPsRestricted); 428 429 if (phone.getSimulatedRadioControl() != null) { 430 // Assume data is connected on the simulator 431 // FIXME this can be improved 432 setState(State.CONNECTED); 433 phone.notifyDataConnection(reason); 434 435 Log.i(LOG_TAG, "(fix?) We're on the simulator; assuming data is connected"); 436 return true; 437 } 438 439 int gprsState = mGsmPhone.mSST.getCurrentGprsState(); 440 boolean desiredPowerState = mGsmPhone.mSST.getDesiredPowerState(); 441 442 if ((state == State.IDLE || state == State.SCANNING) 443 && (gprsState == ServiceState.STATE_IN_SERVICE || noAutoAttach) 444 && mGsmPhone.mSIMRecords.getRecordsLoaded() 445 && phone.getState() == Phone.State.IDLE 446 && isDataAllowed() 447 && !mIsPsRestricted 448 && desiredPowerState ) { 449 450 if (state == State.IDLE) { 451 waitingApns = buildWaitingApns(); 452 if (waitingApns.isEmpty()) { 453 if (DBG) log("No APN found"); 454 notifyNoData(GsmDataConnection.FailCause.MISSING_UNKNOWN_APN); 455 return false; 456 } else { 457 log ("Create from allApns : " + apnListToString(allApns)); 458 } 459 } 460 461 if (DBG) { 462 log ("Setup waitngApns : " + apnListToString(waitingApns)); 463 } 464 return setupData(reason); 465 } else { 466 if (DBG) 467 log("trySetupData: Not ready for data: " + 468 " dataState=" + state + 469 " gprsState=" + gprsState + 470 " sim=" + mGsmPhone.mSIMRecords.getRecordsLoaded() + 471 " UMTS=" + mGsmPhone.mSST.isConcurrentVoiceAndData() + 472 " phoneState=" + phone.getState() + 473 " isDataAllowed=" + isDataAllowed() + 474 " dataEnabled=" + getAnyDataEnabled() + 475 " roaming=" + phone.getServiceState().getRoaming() + 476 " dataOnRoamingEnable=" + getDataOnRoamingEnabled() + 477 " ps restricted=" + mIsPsRestricted + 478 " desiredPowerState=" + desiredPowerState + 479 " MasterDataEnabled=" + mMasterDataEnabled); 480 return false; 481 } 482 } 483 484 /** 485 * If tearDown is true, this only tears down a CONNECTED session. Presently, 486 * there is no mechanism for abandoning an INITING/CONNECTING session, 487 * but would likely involve cancelling pending async requests or 488 * setting a flag or new state to ignore them when they came in 489 * @param tearDown true if the underlying GsmDataConnection should be 490 * disconnected. 491 * @param reason reason for the clean up. 492 */ 493 private void cleanUpConnection(boolean tearDown, String reason) { 494 if (DBG) log("Clean up connection due to " + reason); 495 496 // Clear the reconnect alarm, if set. 497 if (mReconnectIntent != null) { 498 AlarmManager am = 499 (AlarmManager) phone.getContext().getSystemService(Context.ALARM_SERVICE); 500 am.cancel(mReconnectIntent); 501 mReconnectIntent = null; 502 } 503 504 setState(State.DISCONNECTING); 505 506 boolean notificationDeferred = false; 507 for (DataConnection conn : pdpList) { 508 if (tearDown) { 509 if (DBG) log("cleanUpConnection: teardown, call conn.disconnect"); 510 conn.disconnect(obtainMessage(EVENT_DISCONNECT_DONE, reason)); 511 notificationDeferred = true; 512 } else { 513 if (DBG) log("cleanUpConnection: !tearDown, call conn.resetSynchronously"); 514 conn.resetSynchronously(); 515 notificationDeferred = false; 516 } 517 } 518 stopNetStatPoll(); 519 520 if (!notificationDeferred) { 521 if (DBG) log("cleanupConnection: !notificationDeferred"); 522 gotoIdleAndNotifyDataConnection(reason); 523 } 524 } 525 526 /** 527 * @param types comma delimited list of APN types 528 * @return array of APN types 529 */ 530 private String[] parseTypes(String types) { 531 String[] result; 532 // If unset, set to DEFAULT. 533 if (types == null || types.equals("")) { 534 result = new String[1]; 535 result[0] = Phone.APN_TYPE_ALL; 536 } else { 537 result = types.split(","); 538 } 539 return result; 540 } 541 542 private ArrayList<ApnSetting> createApnList(Cursor cursor) { 543 ArrayList<ApnSetting> result = new ArrayList<ApnSetting>(); 544 if (cursor.moveToFirst()) { 545 do { 546 String[] types = parseTypes( 547 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.TYPE))); 548 ApnSetting apn = new ApnSetting( 549 cursor.getInt(cursor.getColumnIndexOrThrow(Telephony.Carriers._ID)), 550 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.NUMERIC)), 551 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.NAME)), 552 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.APN)), 553 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.PROXY)), 554 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.PORT)), 555 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.MMSC)), 556 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.MMSPROXY)), 557 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.MMSPORT)), 558 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.USER)), 559 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.PASSWORD)), 560 cursor.getInt(cursor.getColumnIndexOrThrow(Telephony.Carriers.AUTH_TYPE)), 561 types); 562 result.add(apn); 563 } while (cursor.moveToNext()); 564 } 565 return result; 566 } 567 568 private GsmDataConnection findFreePdp() { 569 for (DataConnection conn : pdpList) { 570 GsmDataConnection pdp = (GsmDataConnection) conn; 571 if (pdp.isInactive()) { 572 return pdp; 573 } 574 } 575 return null; 576 } 577 578 private boolean setupData(String reason) { 579 ApnSetting apn; 580 GsmDataConnection pdp; 581 582 apn = getNextApn(); 583 if (apn == null) return false; 584 pdp = findFreePdp(); 585 if (pdp == null) { 586 if (DBG) log("setupData: No free GsmDataConnection found!"); 587 return false; 588 } 589 mActiveApn = apn; 590 mActivePdp = pdp; 591 592 Message msg = obtainMessage(); 593 msg.what = EVENT_DATA_SETUP_COMPLETE; 594 msg.obj = reason; 595 pdp.connect(msg, apn); 596 597 setState(State.INITING); 598 phone.notifyDataConnection(reason); 599 return true; 600 } 601 602 protected String getInterfaceName(String apnType) { 603 if (mActivePdp != null && 604 (apnType == null || 605 (mActiveApn != null && mActiveApn.canHandleType(apnType)))) { 606 return mActivePdp.getInterface(); 607 } 608 return null; 609 } 610 611 protected String getIpAddress(String apnType) { 612 if (mActivePdp != null && 613 (apnType == null || 614 (mActiveApn != null && mActiveApn.canHandleType(apnType)))) { 615 return mActivePdp.getIpAddress(); 616 } 617 return null; 618 } 619 620 public String getGateway(String apnType) { 621 if (mActivePdp != null && 622 (apnType == null || 623 (mActiveApn != null && mActiveApn.canHandleType(apnType)))) { 624 return mActivePdp.getGatewayAddress(); 625 } 626 return null; 627 } 628 629 protected String[] getDnsServers(String apnType) { 630 if (mActivePdp != null && 631 (apnType == null || 632 (mActiveApn != null && mActiveApn.canHandleType(apnType)))) { 633 return mActivePdp.getDnsServers(); 634 } 635 return null; 636 } 637 638 private boolean 639 pdpStatesHasCID (ArrayList<DataCallState> states, int cid) { 640 for (int i = 0, s = states.size() ; i < s ; i++) { 641 if (states.get(i).cid == cid) return true; 642 } 643 644 return false; 645 } 646 647 private boolean 648 pdpStatesHasActiveCID (ArrayList<DataCallState> states, int cid) { 649 for (int i = 0, s = states.size() ; i < s ; i++) { 650 if ((states.get(i).cid == cid) && (states.get(i).active != 0)) { 651 return true; 652 } 653 } 654 655 return false; 656 } 657 658 /** 659 * Handles changes to the APN database. 660 */ 661 private void onApnChanged() { 662 boolean isConnected; 663 664 isConnected = (state != State.IDLE && state != State.FAILED); 665 666 // The "current" may no longer be valid. MMS depends on this to send properly. 667 mGsmPhone.updateCurrentCarrierInProvider(); 668 669 // TODO: It'd be nice to only do this if the changed entrie(s) 670 // match the current operator. 671 createAllApnList(); 672 if (state != State.DISCONNECTING) { 673 cleanUpConnection(isConnected, Phone.REASON_APN_CHANGED); 674 if (!isConnected) { 675 // reset reconnect timer 676 mRetryMgr.resetRetryCount(); 677 mReregisterOnReconnectFailure = false; 678 trySetupData(Phone.REASON_APN_CHANGED); 679 } 680 } 681 } 682 683 /** 684 * @param explicitPoll if true, indicates that *we* polled for this 685 * update while state == CONNECTED rather than having it delivered 686 * via an unsolicited response (which could have happened at any 687 * previous state 688 */ 689 protected void onPdpStateChanged (AsyncResult ar, boolean explicitPoll) { 690 ArrayList<DataCallState> pdpStates; 691 692 pdpStates = (ArrayList<DataCallState>)(ar.result); 693 694 if (ar.exception != null) { 695 // This is probably "radio not available" or something 696 // of that sort. If so, the whole connection is going 697 // to come down soon anyway 698 return; 699 } 700 701 if (state == State.CONNECTED) { 702 // The way things are supposed to work, the PDP list 703 // should not contain the CID after it disconnects. 704 // However, the way things really work, sometimes the PDP 705 // context is still listed with active = false, which 706 // makes it hard to distinguish an activating context from 707 // an activated-and-then deactivated one. 708 if (!pdpStatesHasCID(pdpStates, cidActive)) { 709 // It looks like the PDP context has deactivated. 710 // Tear everything down and try to reconnect. 711 712 Log.i(LOG_TAG, "PDP connection has dropped. Reconnecting"); 713 714 // Add an event log when the network drops PDP 715 GsmCellLocation loc = ((GsmCellLocation)phone.getCellLocation()); 716 EventLog.writeEvent(EventLogTags.PDP_NETWORK_DROP, 717 loc != null ? loc.getCid() : -1, 718 TelephonyManager.getDefault().getNetworkType()); 719 720 cleanUpConnection(true, null); 721 return; 722 } else if (!pdpStatesHasActiveCID(pdpStates, cidActive)) { 723 // Here, we only consider this authoritative if we asked for the 724 // PDP list. If it was an unsolicited response, we poll again 725 // to make sure everyone agrees on the initial state. 726 727 if (!explicitPoll) { 728 // We think it disconnected but aren't sure...poll from our side 729 phone.mCM.getPDPContextList( 730 this.obtainMessage(EVENT_GET_PDP_LIST_COMPLETE)); 731 } else { 732 Log.i(LOG_TAG, "PDP connection has dropped (active=false case). " 733 + " Reconnecting"); 734 735 // Log the network drop on the event log. 736 GsmCellLocation loc = ((GsmCellLocation)phone.getCellLocation()); 737 EventLog.writeEvent(EventLogTags.PDP_NETWORK_DROP, 738 loc != null ? loc.getCid() : -1, 739 TelephonyManager.getDefault().getNetworkType()); 740 741 cleanUpConnection(true, null); 742 } 743 } 744 } 745 } 746 747 private void notifyDefaultData(String reason) { 748 setState(State.CONNECTED); 749 phone.notifyDataConnection(reason); 750 startNetStatPoll(); 751 // reset reconnect timer 752 mRetryMgr.resetRetryCount(); 753 mReregisterOnReconnectFailure = false; 754 } 755 756 private void gotoIdleAndNotifyDataConnection(String reason) { 757 if (DBG) log("gotoIdleAndNotifyDataConnection: reason=" + reason); 758 setState(State.IDLE); 759 phone.notifyDataConnection(reason); 760 mActiveApn = null; 761 } 762 763 /** 764 * This is a kludge to deal with the fact that 765 * the PDP state change notification doesn't always work 766 * with certain RIL impl's/basebands 767 * 768 */ 769 private void startPeriodicPdpPoll() { 770 removeMessages(EVENT_POLL_PDP); 771 772 sendMessageDelayed(obtainMessage(EVENT_POLL_PDP), POLL_PDP_MILLIS); 773 } 774 775 private void resetPollStats() { 776 txPkts = -1; 777 rxPkts = -1; 778 sentSinceLastRecv = 0; 779 netStatPollPeriod = POLL_NETSTAT_MILLIS; 780 mNoRecvPollCount = 0; 781 } 782 783 private void doRecovery() { 784 if (state == State.CONNECTED) { 785 int maxPdpReset = Settings.Secure.getInt(mResolver, 786 Settings.Secure.PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT, 787 DEFAULT_MAX_PDP_RESET_FAIL); 788 if (mPdpResetCount < maxPdpReset) { 789 mPdpResetCount++; 790 EventLog.writeEvent(EventLogTags.PDP_RADIO_RESET, sentSinceLastRecv); 791 cleanUpConnection(true, Phone.REASON_PDP_RESET); 792 } else { 793 mPdpResetCount = 0; 794 EventLog.writeEvent(EventLogTags.PDP_REREGISTER_NETWORK, sentSinceLastRecv); 795 mGsmPhone.mSST.reRegisterNetwork(null); 796 } 797 // TODO: Add increasingly drastic recovery steps, eg, 798 // reset the radio, reset the device. 799 } 800 } 801 802 protected void startNetStatPoll() { 803 if (state == State.CONNECTED && mPingTestActive == false && netStatPollEnabled == false) { 804 Log.d(LOG_TAG, "[DataConnection] Start poll NetStat"); 805 resetPollStats(); 806 netStatPollEnabled = true; 807 mPollNetStat.run(); 808 } 809 } 810 811 protected void stopNetStatPoll() { 812 netStatPollEnabled = false; 813 removeCallbacks(mPollNetStat); 814 Log.d(LOG_TAG, "[DataConnection] Stop poll NetStat"); 815 } 816 817 protected void restartRadio() { 818 Log.d(LOG_TAG, "************TURN OFF RADIO**************"); 819 cleanUpConnection(true, Phone.REASON_RADIO_TURNED_OFF); 820 mGsmPhone.mSST.powerOffRadioSafely(); 821 /* Note: no need to call setRadioPower(true). Assuming the desired 822 * radio power state is still ON (as tracked by ServiceStateTracker), 823 * ServiceStateTracker will call setRadioPower when it receives the 824 * RADIO_STATE_CHANGED notification for the power off. And if the 825 * desired power state has changed in the interim, we don't want to 826 * override it with an unconditional power on. 827 */ 828 829 int reset = Integer.parseInt(SystemProperties.get("net.ppp.reset-by-timeout", "0")); 830 SystemProperties.set("net.ppp.reset-by-timeout", String.valueOf(reset+1)); 831 } 832 833 private Runnable mPollNetStat = new Runnable() 834 { 835 836 public void run() { 837 long sent, received; 838 long preTxPkts = -1, preRxPkts = -1; 839 840 Activity newActivity; 841 842 preTxPkts = txPkts; 843 preRxPkts = rxPkts; 844 845 txPkts = TrafficStats.getMobileTxPackets(); 846 rxPkts = TrafficStats.getMobileRxPackets(); 847 848 //Log.d(LOG_TAG, "rx " + String.valueOf(rxPkts) + " tx " + String.valueOf(txPkts)); 849 850 if (netStatPollEnabled && (preTxPkts > 0 || preRxPkts > 0)) { 851 sent = txPkts - preTxPkts; 852 received = rxPkts - preRxPkts; 853 854 if ( sent > 0 && received > 0 ) { 855 sentSinceLastRecv = 0; 856 newActivity = Activity.DATAINANDOUT; 857 mPdpResetCount = 0; 858 } else if (sent > 0 && received == 0) { 859 if (phone.getState() == Phone.State.IDLE) { 860 sentSinceLastRecv += sent; 861 } else { 862 sentSinceLastRecv = 0; 863 } 864 newActivity = Activity.DATAOUT; 865 } else if (sent == 0 && received > 0) { 866 sentSinceLastRecv = 0; 867 newActivity = Activity.DATAIN; 868 mPdpResetCount = 0; 869 } else if (sent == 0 && received == 0) { 870 newActivity = Activity.NONE; 871 } else { 872 sentSinceLastRecv = 0; 873 newActivity = Activity.NONE; 874 } 875 876 if (activity != newActivity && mIsScreenOn) { 877 activity = newActivity; 878 phone.notifyDataActivity(); 879 } 880 } 881 882 int watchdogTrigger = Settings.Secure.getInt(mResolver, 883 Settings.Secure.PDP_WATCHDOG_TRIGGER_PACKET_COUNT, 884 NUMBER_SENT_PACKETS_OF_HANG); 885 886 if (sentSinceLastRecv >= watchdogTrigger) { 887 // we already have NUMBER_SENT_PACKETS sent without ack 888 if (mNoRecvPollCount == 0) { 889 EventLog.writeEvent(EventLogTags.PDP_RADIO_RESET_COUNTDOWN_TRIGGERED, 890 sentSinceLastRecv); 891 } 892 893 int noRecvPollLimit = Settings.Secure.getInt(mResolver, 894 Settings.Secure.PDP_WATCHDOG_ERROR_POLL_COUNT, NO_RECV_POLL_LIMIT); 895 896 if (mNoRecvPollCount < noRecvPollLimit) { 897 // It's possible the PDP context went down and we weren't notified. 898 // Start polling the context list in an attempt to recover. 899 if (DBG) log("no DATAIN in a while; polling PDP"); 900 phone.mCM.getDataCallList(obtainMessage(EVENT_GET_PDP_LIST_COMPLETE)); 901 902 mNoRecvPollCount++; 903 904 // Slow down the poll interval to let things happen 905 netStatPollPeriod = Settings.Secure.getInt(mResolver, 906 Settings.Secure.PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS, 907 POLL_NETSTAT_SLOW_MILLIS); 908 } else { 909 if (DBG) log("Sent " + String.valueOf(sentSinceLastRecv) + 910 " pkts since last received"); 911 // We've exceeded the threshold. Run ping test as a final check; 912 // it will proceed with recovery if ping fails. 913 stopNetStatPoll(); 914 Thread pingTest = new Thread() { 915 public void run() { 916 runPingTest(); 917 } 918 }; 919 mPingTestActive = true; 920 pingTest.start(); 921 } 922 } else { 923 mNoRecvPollCount = 0; 924 if (mIsScreenOn) { 925 netStatPollPeriod = Settings.Secure.getInt(mResolver, 926 Settings.Secure.PDP_WATCHDOG_POLL_INTERVAL_MS, POLL_NETSTAT_MILLIS); 927 } else { 928 netStatPollPeriod = Settings.Secure.getInt(mResolver, 929 Settings.Secure.PDP_WATCHDOG_LONG_POLL_INTERVAL_MS, 930 POLL_NETSTAT_SCREEN_OFF_MILLIS); 931 } 932 } 933 934 if (netStatPollEnabled) { 935 mDataConnectionTracker.postDelayed(this, netStatPollPeriod); 936 } 937 } 938 }; 939 940 private void runPingTest () { 941 int status = -1; 942 try { 943 String address = Settings.Secure.getString(mResolver, 944 Settings.Secure.PDP_WATCHDOG_PING_ADDRESS); 945 int deadline = Settings.Secure.getInt(mResolver, 946 Settings.Secure.PDP_WATCHDOG_PING_DEADLINE, DEFAULT_PING_DEADLINE); 947 if (DBG) log("pinging " + address + " for " + deadline + "s"); 948 if (address != null && !NULL_IP.equals(address)) { 949 Process p = Runtime.getRuntime() 950 .exec("ping -c 1 -i 1 -w "+ deadline + " " + address); 951 status = p.waitFor(); 952 } 953 } catch (IOException e) { 954 Log.w(LOG_TAG, "ping failed: IOException"); 955 } catch (Exception e) { 956 Log.w(LOG_TAG, "exception trying to ping"); 957 } 958 959 if (status == 0) { 960 // ping succeeded. False alarm. Reset netStatPoll. 961 // ("-1" for this event indicates a false alarm) 962 EventLog.writeEvent(EventLogTags.PDP_RADIO_RESET, -1); 963 mPdpResetCount = 0; 964 sendMessage(obtainMessage(EVENT_START_NETSTAT_POLL)); 965 } else { 966 // ping failed. Proceed with recovery. 967 sendMessage(obtainMessage(EVENT_START_RECOVERY)); 968 } 969 } 970 971 /** 972 * Returns true if the last fail cause is something that 973 * seems like it deserves an error notification. 974 * Transient errors are ignored 975 */ 976 private boolean shouldPostNotification(GsmDataConnection.FailCause cause) { 977 return (cause != GsmDataConnection.FailCause.UNKNOWN); 978 } 979 980 /** 981 * Return true if data connection need to be setup after disconnected due to 982 * reason. 983 * 984 * @param reason the reason why data is disconnected 985 * @return true if try setup data connection is need for this reason 986 */ 987 private boolean retryAfterDisconnected(String reason) { 988 boolean retry = true; 989 990 if ( Phone.REASON_RADIO_TURNED_OFF.equals(reason) ) { 991 retry = false; 992 } 993 return retry; 994 } 995 996 private void reconnectAfterFail(FailCause lastFailCauseCode, String reason) { 997 if (state == State.FAILED) { 998 if (!mRetryMgr.isRetryNeeded()) { 999 if (!mRequestedApnType.equals(Phone.APN_TYPE_DEFAULT)) { 1000 // if no more retries on a secondary APN attempt, tell the world and revert. 1001 phone.notifyDataConnection(Phone.REASON_APN_FAILED); 1002 onEnableApn(apnTypeToId(mRequestedApnType), DISABLED); 1003 return; 1004 } 1005 if (mReregisterOnReconnectFailure) { 1006 // We've re-registerd once now just retry forever. 1007 mRetryMgr.retryForeverUsingLastTimeout(); 1008 } else { 1009 // Try to re-register to the network. 1010 Log.d(LOG_TAG, "PDP activate failed, Reregistering to the network"); 1011 mReregisterOnReconnectFailure = true; 1012 mGsmPhone.mSST.reRegisterNetwork(null); 1013 mRetryMgr.resetRetryCount(); 1014 return; 1015 } 1016 } 1017 1018 int nextReconnectDelay = mRetryMgr.getRetryTimer(); 1019 Log.d(LOG_TAG, "PDP activate failed. Scheduling next attempt for " 1020 + (nextReconnectDelay / 1000) + "s"); 1021 1022 AlarmManager am = 1023 (AlarmManager) phone.getContext().getSystemService(Context.ALARM_SERVICE); 1024 Intent intent = new Intent(INTENT_RECONNECT_ALARM); 1025 intent.putExtra(INTENT_RECONNECT_ALARM_EXTRA_REASON, reason); 1026 mReconnectIntent = PendingIntent.getBroadcast( 1027 phone.getContext(), 0, intent, 0); 1028 am.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, 1029 SystemClock.elapsedRealtime() + nextReconnectDelay, 1030 mReconnectIntent); 1031 1032 mRetryMgr.increaseRetryCount(); 1033 1034 if (!shouldPostNotification(lastFailCauseCode)) { 1035 Log.d(LOG_TAG,"NOT Posting GPRS Unavailable notification " 1036 + "-- likely transient error"); 1037 } else { 1038 notifyNoData(lastFailCauseCode); 1039 } 1040 } 1041 } 1042 1043 private void notifyNoData(GsmDataConnection.FailCause lastFailCauseCode) { 1044 setState(State.FAILED); 1045 } 1046 1047 protected void onRecordsLoaded() { 1048 createAllApnList(); 1049 if (state == State.FAILED) { 1050 cleanUpConnection(false, null); 1051 } 1052 sendMessage(obtainMessage(EVENT_TRY_SETUP_DATA, Phone.REASON_SIM_LOADED)); 1053 } 1054 1055 @Override 1056 protected void onEnableNewApn() { 1057 // change our retry manager to use the appropriate numbers for the new APN 1058 if (mRequestedApnType.equals(Phone.APN_TYPE_DEFAULT)) { 1059 mRetryMgr = mDefaultRetryManager; 1060 } else { 1061 mRetryMgr = mSecondaryRetryManager; 1062 } 1063 mRetryMgr.resetRetryCount(); 1064 1065 // TODO: To support simultaneous PDP contexts, this should really only call 1066 // cleanUpConnection if it needs to free up a GsmDataConnection. 1067 cleanUpConnection(true, Phone.REASON_APN_SWITCHED); 1068 } 1069 1070 protected boolean onTrySetupData(String reason) { 1071 return trySetupData(reason); 1072 } 1073 1074 @Override 1075 protected void onRoamingOff() { 1076 trySetupData(Phone.REASON_ROAMING_OFF); 1077 } 1078 1079 @Override 1080 protected void onRoamingOn() { 1081 if (getDataOnRoamingEnabled()) { 1082 trySetupData(Phone.REASON_ROAMING_ON); 1083 } else { 1084 if (DBG) log("Tear down data connection on roaming."); 1085 cleanUpConnection(true, Phone.REASON_ROAMING_ON); 1086 } 1087 } 1088 1089 protected void onRadioAvailable() { 1090 if (phone.getSimulatedRadioControl() != null) { 1091 // Assume data is connected on the simulator 1092 // FIXME this can be improved 1093 setState(State.CONNECTED); 1094 phone.notifyDataConnection(null); 1095 1096 Log.i(LOG_TAG, "We're on the simulator; assuming data is connected"); 1097 } 1098 1099 if (state != State.IDLE) { 1100 cleanUpConnection(true, null); 1101 } 1102 } 1103 1104 protected void onRadioOffOrNotAvailable() { 1105 // Make sure our reconnect delay starts at the initial value 1106 // next time the radio comes on 1107 mRetryMgr.resetRetryCount(); 1108 mReregisterOnReconnectFailure = false; 1109 1110 if (phone.getSimulatedRadioControl() != null) { 1111 // Assume data is connected on the simulator 1112 // FIXME this can be improved 1113 Log.i(LOG_TAG, "We're on the simulator; assuming radio off is meaningless"); 1114 } else { 1115 if (DBG) log("Radio is off and clean up all connection"); 1116 // TODO: Should we reset mRequestedApnType to "default"? 1117 cleanUpConnection(false, Phone.REASON_RADIO_TURNED_OFF); 1118 } 1119 } 1120 1121 protected void onDataSetupComplete(AsyncResult ar) { 1122 String reason = null; 1123 if (ar.userObj instanceof String) { 1124 reason = (String) ar.userObj; 1125 } 1126 1127 if (ar.exception == null) { 1128 // everything is setup 1129 if (isApnTypeActive(Phone.APN_TYPE_DEFAULT)) { 1130 SystemProperties.set("gsm.defaultpdpcontext.active", "true"); 1131 if (canSetPreferApn && preferredApn == null) { 1132 Log.d(LOG_TAG, "PREFERRED APN is null"); 1133 preferredApn = mActiveApn; 1134 setPreferredApn(preferredApn.id); 1135 } 1136 } else { 1137 SystemProperties.set("gsm.defaultpdpcontext.active", "false"); 1138 } 1139 notifyDefaultData(reason); 1140 1141 // TODO: For simultaneous PDP support, we need to build another 1142 // trigger another TRY_SETUP_DATA for the next APN type. (Note 1143 // that the existing connection may service that type, in which 1144 // case we should try the next type, etc. 1145 } else { 1146 GsmDataConnection.FailCause cause; 1147 cause = (GsmDataConnection.FailCause) (ar.result); 1148 if(DBG) log("PDP setup failed " + cause); 1149 // Log this failure to the Event Logs. 1150 if (cause.isEventLoggable()) { 1151 GsmCellLocation loc = ((GsmCellLocation)phone.getCellLocation()); 1152 EventLog.writeEvent(EventLogTags.PDP_SETUP_FAIL, 1153 cause.ordinal(), loc != null ? loc.getCid() : -1, 1154 TelephonyManager.getDefault().getNetworkType()); 1155 } 1156 1157 // No try for permanent failure 1158 if (cause.isPermanentFail()) { 1159 notifyNoData(cause); 1160 phone.notifyDataConnection(Phone.REASON_APN_FAILED); 1161 onEnableApn(apnTypeToId(mRequestedApnType), DISABLED); 1162 return; 1163 } 1164 1165 waitingApns.remove(0); 1166 if (waitingApns.isEmpty()) { 1167 // No more to try, start delayed retry 1168 startDelayedRetry(cause, reason); 1169 } else { 1170 // we still have more apns to try 1171 setState(State.SCANNING); 1172 // Wait a bit before trying the next APN, so that 1173 // we're not tying up the RIL command channel 1174 sendMessageDelayed(obtainMessage(EVENT_TRY_SETUP_DATA, reason), APN_DELAY_MILLIS); 1175 } 1176 } 1177 } 1178 1179 /** 1180 * Called when EVENT_DISCONNECT_DONE is received. 1181 */ 1182 protected void onDisconnectDone(AsyncResult ar) { 1183 String reason = null; 1184 if(DBG) log("EVENT_DISCONNECT_DONE"); 1185 if (ar.userObj instanceof String) { 1186 reason = (String) ar.userObj; 1187 } 1188 setState(State.IDLE); 1189 phone.notifyDataConnection(reason); 1190 mActiveApn = null; 1191 if (retryAfterDisconnected(reason)) { 1192 trySetupData(reason); 1193 } 1194 } 1195 1196 /** 1197 * Called when EVENT_RESET_DONE is received. 1198 */ 1199 @Override 1200 protected void onResetDone(AsyncResult ar) { 1201 if (DBG) log("EVENT_RESET_DONE"); 1202 String reason = null; 1203 if (ar.userObj instanceof String) { 1204 reason = (String) ar.userObj; 1205 } 1206 gotoIdleAndNotifyDataConnection(reason); 1207 } 1208 1209 protected void onPollPdp() { 1210 if (state == State.CONNECTED) { 1211 // only poll when connected 1212 phone.mCM.getPDPContextList(this.obtainMessage(EVENT_GET_PDP_LIST_COMPLETE)); 1213 sendMessageDelayed(obtainMessage(EVENT_POLL_PDP), POLL_PDP_MILLIS); 1214 } 1215 } 1216 1217 protected void onVoiceCallStarted() { 1218 if (state == State.CONNECTED && ! mGsmPhone.mSST.isConcurrentVoiceAndData()) { 1219 stopNetStatPoll(); 1220 phone.notifyDataConnection(Phone.REASON_VOICE_CALL_STARTED); 1221 } 1222 } 1223 1224 protected void onVoiceCallEnded() { 1225 if (state == State.CONNECTED) { 1226 if (!mGsmPhone.mSST.isConcurrentVoiceAndData()) { 1227 startNetStatPoll(); 1228 phone.notifyDataConnection(Phone.REASON_VOICE_CALL_ENDED); 1229 } else { 1230 // clean slate after call end. 1231 resetPollStats(); 1232 } 1233 } else { 1234 // reset reconnect timer 1235 mRetryMgr.resetRetryCount(); 1236 mReregisterOnReconnectFailure = false; 1237 // in case data setup was attempted when we were on a voice call 1238 trySetupData(Phone.REASON_VOICE_CALL_ENDED); 1239 } 1240 } 1241 1242 protected void onCleanUpConnection(boolean tearDown, String reason) { 1243 cleanUpConnection(tearDown, reason); 1244 } 1245 1246 /** 1247 * Based on the sim operator numeric, create a list for all possible pdps 1248 * with all apns associated with that pdp 1249 * 1250 * 1251 */ 1252 private void createAllApnList() { 1253 allApns = new ArrayList<ApnSetting>(); 1254 String operator = mGsmPhone.mSIMRecords.getSIMOperatorNumeric(); 1255 1256 if (operator != null) { 1257 String selection = "numeric = '" + operator + "'"; 1258 1259 Cursor cursor = phone.getContext().getContentResolver().query( 1260 Telephony.Carriers.CONTENT_URI, null, selection, null, null); 1261 1262 if (cursor != null) { 1263 if (cursor.getCount() > 0) { 1264 allApns = createApnList(cursor); 1265 // TODO: Figure out where this fits in. This basically just 1266 // writes the pap-secrets file. No longer tied to GsmDataConnection 1267 // object. Not used on current platform (no ppp). 1268 //GsmDataConnection pdp = pdpList.get(pdp_name); 1269 //if (pdp != null && pdp.dataLink != null) { 1270 // pdp.dataLink.setPasswordInfo(cursor); 1271 //} 1272 } 1273 cursor.close(); 1274 } 1275 } 1276 1277 if (allApns.isEmpty()) { 1278 if (DBG) log("No APN found for carrier: " + operator); 1279 preferredApn = null; 1280 notifyNoData(GsmDataConnection.FailCause.MISSING_UNKNOWN_APN); 1281 } else { 1282 preferredApn = getPreferredApn(); 1283 Log.d(LOG_TAG, "Get PreferredAPN"); 1284 if (preferredApn != null && !preferredApn.numeric.equals(operator)) { 1285 preferredApn = null; 1286 setPreferredApn(-1); 1287 } 1288 } 1289 } 1290 1291 private void createAllPdpList() { 1292 pdpList = new ArrayList<DataConnection>(); 1293 DataConnection pdp; 1294 1295 for (int i = 0; i < PDP_CONNECTION_POOL_SIZE; i++) { 1296 pdp = GsmDataConnection.makeDataConnection(mGsmPhone); 1297 pdpList.add(pdp); 1298 } 1299 } 1300 1301 private void destroyAllPdpList() { 1302 if(pdpList != null) { 1303 GsmDataConnection pdp; 1304 pdpList.removeAll(pdpList); 1305 } 1306 } 1307 1308 private ApnSetting fetchDunApn() { 1309 Context c = phone.getContext(); 1310 String apnData = Settings.Secure.getString(c.getContentResolver(), 1311 Settings.Secure.TETHER_DUN_APN); 1312 ApnSetting dunSetting = ApnSetting.fromString(apnData); 1313 if (dunSetting != null) return dunSetting; 1314 1315 apnData = c.getResources().getString(R.string.config_tether_apndata); 1316 return ApnSetting.fromString(apnData); 1317 } 1318 1319 /** 1320 * 1321 * @return waitingApns list to be used to create PDP 1322 * error when waitingApns.isEmpty() 1323 */ 1324 private ArrayList<ApnSetting> buildWaitingApns() { 1325 ArrayList<ApnSetting> apnList = new ArrayList<ApnSetting>(); 1326 1327 if (mRequestedApnType.equals(Phone.APN_TYPE_DUN)) { 1328 ApnSetting dun = fetchDunApn(); 1329 if (dun != null) apnList.add(dun); 1330 return apnList; 1331 } 1332 1333 String operator = mGsmPhone.mSIMRecords.getSIMOperatorNumeric(); 1334 1335 if (mRequestedApnType.equals(Phone.APN_TYPE_DEFAULT)) { 1336 if (canSetPreferApn && preferredApn != null) { 1337 Log.i(LOG_TAG, "Preferred APN:" + operator + ":" 1338 + preferredApn.numeric + ":" + preferredApn); 1339 if (preferredApn.numeric.equals(operator)) { 1340 Log.i(LOG_TAG, "Waiting APN set to preferred APN"); 1341 apnList.add(preferredApn); 1342 return apnList; 1343 } else { 1344 setPreferredApn(-1); 1345 preferredApn = null; 1346 } 1347 } 1348 } 1349 1350 if (allApns != null) { 1351 for (ApnSetting apn : allApns) { 1352 if (apn.canHandleType(mRequestedApnType)) { 1353 apnList.add(apn); 1354 } 1355 } 1356 } 1357 return apnList; 1358 } 1359 1360 /** 1361 * Get next apn in waitingApns 1362 * @return the first apn found in waitingApns, null if none 1363 */ 1364 private ApnSetting getNextApn() { 1365 ArrayList<ApnSetting> list = waitingApns; 1366 ApnSetting apn = null; 1367 1368 if (list != null) { 1369 if (!list.isEmpty()) { 1370 apn = list.get(0); 1371 } 1372 } 1373 return apn; 1374 } 1375 1376 private String apnListToString (ArrayList<ApnSetting> apns) { 1377 StringBuilder result = new StringBuilder(); 1378 for (int i = 0, size = apns.size(); i < size; i++) { 1379 result.append('[') 1380 .append(apns.get(i).toString()) 1381 .append(']'); 1382 } 1383 return result.toString(); 1384 } 1385 1386 private void startDelayedRetry(GsmDataConnection.FailCause cause, String reason) { 1387 notifyNoData(cause); 1388 reconnectAfterFail(cause, reason); 1389 } 1390 1391 private void setPreferredApn(int pos) { 1392 if (!canSetPreferApn) { 1393 return; 1394 } 1395 1396 ContentResolver resolver = phone.getContext().getContentResolver(); 1397 resolver.delete(PREFERAPN_URI, null, null); 1398 1399 if (pos >= 0) { 1400 ContentValues values = new ContentValues(); 1401 values.put(APN_ID, pos); 1402 resolver.insert(PREFERAPN_URI, values); 1403 } 1404 } 1405 1406 private ApnSetting getPreferredApn() { 1407 if (allApns.isEmpty()) { 1408 return null; 1409 } 1410 1411 Cursor cursor = phone.getContext().getContentResolver().query( 1412 PREFERAPN_URI, new String[] { "_id", "name", "apn" }, 1413 null, null, Telephony.Carriers.DEFAULT_SORT_ORDER); 1414 1415 if (cursor != null) { 1416 canSetPreferApn = true; 1417 } else { 1418 canSetPreferApn = false; 1419 } 1420 1421 if (canSetPreferApn && cursor.getCount() > 0) { 1422 int pos; 1423 cursor.moveToFirst(); 1424 pos = cursor.getInt(cursor.getColumnIndexOrThrow(Telephony.Carriers._ID)); 1425 for(ApnSetting p:allApns) { 1426 if (p.id == pos && p.canHandleType(mRequestedApnType)) { 1427 cursor.close(); 1428 return p; 1429 } 1430 } 1431 } 1432 1433 if (cursor != null) { 1434 cursor.close(); 1435 } 1436 1437 return null; 1438 } 1439 1440 public void handleMessage (Message msg) { 1441 if (DBG) Log.d(LOG_TAG,"GSMDataConnTrack handleMessage "+msg); 1442 1443 if (!mGsmPhone.mIsTheCurrentActivePhone) { 1444 Log.d(LOG_TAG, "Ignore GSM msgs since GSM phone is inactive"); 1445 return; 1446 } 1447 1448 switch (msg.what) { 1449 case EVENT_RECORDS_LOADED: 1450 onRecordsLoaded(); 1451 break; 1452 1453 case EVENT_GPRS_DETACHED: 1454 onGprsDetached(); 1455 break; 1456 1457 case EVENT_GPRS_ATTACHED: 1458 onGprsAttached(); 1459 break; 1460 1461 case EVENT_DATA_STATE_CHANGED: 1462 onPdpStateChanged((AsyncResult) msg.obj, false); 1463 break; 1464 1465 case EVENT_GET_PDP_LIST_COMPLETE: 1466 onPdpStateChanged((AsyncResult) msg.obj, true); 1467 break; 1468 1469 case EVENT_POLL_PDP: 1470 onPollPdp(); 1471 break; 1472 1473 case EVENT_START_NETSTAT_POLL: 1474 mPingTestActive = false; 1475 startNetStatPoll(); 1476 break; 1477 1478 case EVENT_START_RECOVERY: 1479 mPingTestActive = false; 1480 doRecovery(); 1481 break; 1482 1483 case EVENT_APN_CHANGED: 1484 onApnChanged(); 1485 break; 1486 1487 case EVENT_PS_RESTRICT_ENABLED: 1488 /** 1489 * We don't need to explicitly to tear down the PDP context 1490 * when PS restricted is enabled. The base band will deactive 1491 * PDP context and notify us with PDP_CONTEXT_CHANGED. 1492 * But we should stop the network polling and prevent reset PDP. 1493 */ 1494 Log.d(LOG_TAG, "[DSAC DEB] " + "EVENT_PS_RESTRICT_ENABLED " + mIsPsRestricted); 1495 stopNetStatPoll(); 1496 mIsPsRestricted = true; 1497 break; 1498 1499 case EVENT_PS_RESTRICT_DISABLED: 1500 /** 1501 * When PS restrict is removed, we need setup PDP connection if 1502 * PDP connection is down. 1503 */ 1504 Log.d(LOG_TAG, "[DSAC DEB] " + "EVENT_PS_RESTRICT_DISABLED " + mIsPsRestricted); 1505 mIsPsRestricted = false; 1506 if (state == State.CONNECTED) { 1507 startNetStatPoll(); 1508 } else { 1509 if (state == State.FAILED) { 1510 cleanUpConnection(false, Phone.REASON_PS_RESTRICT_ENABLED); 1511 mRetryMgr.resetRetryCount(); 1512 mReregisterOnReconnectFailure = false; 1513 } 1514 trySetupData(Phone.REASON_PS_RESTRICT_ENABLED); 1515 } 1516 break; 1517 1518 default: 1519 // handle the message in the super class DataConnectionTracker 1520 super.handleMessage(msg); 1521 break; 1522 } 1523 } 1524 1525 protected void log(String s) { 1526 Log.d(LOG_TAG, "[GsmDataConnectionTracker] " + s); 1527 } 1528} 1529