GsmDataConnectionTracker.java revision 2b4abcd0c7c4361af8ab6d5d7b073fb75ac6d219
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.text.TextUtils; 49import android.util.EventLog; 50import android.util.Log; 51 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 retrys on the default APN 154 private RetryManager mDefaultRetryManager; 155 // for tracking retrys 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 disabeled, the NETWORK_STATE_CHANGED_ACTION 193 // quit and wont report disconnected til next enalbing. 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 (allApns != null) { 370 for (ApnSetting apn : allApns) { 371 if (apn.canHandleType(type)) { 372 return true; 373 } 374 } 375 } 376 return false; 377 } 378 379 /** 380 * Formerly this method was ArrayList<GsmDataConnection> getAllPdps() 381 */ 382 public ArrayList<DataConnection> getAllDataConnections() { 383 ArrayList<DataConnection> pdps = (ArrayList<DataConnection>)pdpList.clone(); 384 return pdps; 385 } 386 387 private boolean isDataAllowed() { 388 boolean roaming = phone.getServiceState().getRoaming(); 389 return getAnyDataEnabled() && (!roaming || getDataOnRoamingEnabled()) && 390 mMasterDataEnabled; 391 } 392 393 //****** Called from ServiceStateTracker 394 /** 395 * Invoked when ServiceStateTracker observes a transition from GPRS 396 * attach to detach. 397 */ 398 protected void onGprsDetached() { 399 /* 400 * We presently believe it is unnecessary to tear down the PDP context 401 * when GPRS detaches, but we should stop the network polling. 402 */ 403 stopNetStatPoll(); 404 phone.notifyDataConnection(Phone.REASON_GPRS_DETACHED); 405 } 406 407 private void onGprsAttached() { 408 if (state == State.CONNECTED) { 409 startNetStatPoll(); 410 phone.notifyDataConnection(Phone.REASON_GPRS_ATTACHED); 411 } else { 412 if (state == State.FAILED) { 413 cleanUpConnection(false, Phone.REASON_GPRS_ATTACHED); 414 mRetryMgr.resetRetryCount(); 415 } 416 trySetupData(Phone.REASON_GPRS_ATTACHED); 417 } 418 } 419 420 private boolean trySetupData(String reason) { 421 if (DBG) log("***trySetupData due to " + (reason == null ? "(unspecified)" : reason)); 422 423 Log.d(LOG_TAG, "[DSAC DEB] " + "trySetupData with mIsPsRestricted=" + mIsPsRestricted); 424 425 if (phone.getSimulatedRadioControl() != null) { 426 // Assume data is connected on the simulator 427 // FIXME this can be improved 428 setState(State.CONNECTED); 429 phone.notifyDataConnection(reason); 430 431 Log.i(LOG_TAG, "(fix?) We're on the simulator; assuming data is connected"); 432 return true; 433 } 434 435 int gprsState = mGsmPhone.mSST.getCurrentGprsState(); 436 boolean desiredPowerState = mGsmPhone.mSST.getDesiredPowerState(); 437 438 if ((state == State.IDLE || state == State.SCANNING) 439 && (gprsState == ServiceState.STATE_IN_SERVICE || noAutoAttach) 440 && mGsmPhone.mSIMRecords.getRecordsLoaded() 441 && phone.getState() == Phone.State.IDLE 442 && isDataAllowed() 443 && !mIsPsRestricted 444 && desiredPowerState ) { 445 446 if (state == State.IDLE) { 447 waitingApns = buildWaitingApns(); 448 if (waitingApns.isEmpty()) { 449 if (DBG) log("No APN found"); 450 notifyNoData(GsmDataConnection.FailCause.MISSING_UKNOWN_APN); 451 return false; 452 } else { 453 log ("Create from allApns : " + apnListToString(allApns)); 454 } 455 } 456 457 if (DBG) { 458 log ("Setup waitngApns : " + apnListToString(waitingApns)); 459 } 460 return setupData(reason); 461 } else { 462 if (DBG) 463 log("trySetupData: Not ready for data: " + 464 " dataState=" + state + 465 " gprsState=" + gprsState + 466 " sim=" + mGsmPhone.mSIMRecords.getRecordsLoaded() + 467 " UMTS=" + mGsmPhone.mSST.isConcurrentVoiceAndData() + 468 " phoneState=" + phone.getState() + 469 " isDataAllowed=" + isDataAllowed() + 470 " dataEnabled=" + getAnyDataEnabled() + 471 " roaming=" + phone.getServiceState().getRoaming() + 472 " dataOnRoamingEnable=" + getDataOnRoamingEnabled() + 473 " ps restricted=" + mIsPsRestricted + 474 " desiredPowerState=" + desiredPowerState + 475 " MasterDataEnabled=" + mMasterDataEnabled); 476 return false; 477 } 478 } 479 480 /** 481 * If tearDown is true, this only tears down a CONNECTED session. Presently, 482 * there is no mechanism for abandoning an INITING/CONNECTING session, 483 * but would likely involve cancelling pending async requests or 484 * setting a flag or new state to ignore them when they came in 485 * @param tearDown true if the underlying GsmDataConnection should be 486 * disconnected. 487 * @param reason reason for the clean up. 488 */ 489 private void cleanUpConnection(boolean tearDown, String reason) { 490 if (DBG) log("Clean up connection due to " + reason); 491 492 // Clear the reconnect alarm, if set. 493 if (mReconnectIntent != null) { 494 AlarmManager am = 495 (AlarmManager) phone.getContext().getSystemService(Context.ALARM_SERVICE); 496 am.cancel(mReconnectIntent); 497 mReconnectIntent = null; 498 } 499 500 setState(State.DISCONNECTING); 501 502 boolean notificationDeferred = false; 503 for (DataConnection conn : pdpList) { 504 if (tearDown) { 505 if (DBG) log("cleanUpConnection: teardown, call conn.disconnect"); 506 conn.disconnect(obtainMessage(EVENT_DISCONNECT_DONE, reason)); 507 notificationDeferred = true; 508 } else { 509 if (DBG) log("cleanUpConnection: !tearDown, call conn.resetSynchronously"); 510 conn.resetSynchronously(); 511 notificationDeferred = false; 512 } 513 } 514 stopNetStatPoll(); 515 516 if (!notificationDeferred) { 517 if (DBG) log("cleanupConnection: !notificationDeferred"); 518 gotoIdleAndNotifyDataConnection(reason); 519 } 520 } 521 522 /** 523 * @param types comma delimited list of APN types 524 * @return array of APN types 525 */ 526 private String[] parseTypes(String types) { 527 String[] result; 528 // If unset, set to DEFAULT. 529 if (types == null || types.equals("")) { 530 result = new String[1]; 531 result[0] = Phone.APN_TYPE_ALL; 532 } else { 533 result = types.split(","); 534 } 535 return result; 536 } 537 538 private ArrayList<ApnSetting> createApnList(Cursor cursor) { 539 ArrayList<ApnSetting> result = new ArrayList<ApnSetting>(); 540 if (cursor.moveToFirst()) { 541 do { 542 String[] types = parseTypes( 543 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.TYPE))); 544 ApnSetting apn = new ApnSetting( 545 cursor.getInt(cursor.getColumnIndexOrThrow(Telephony.Carriers._ID)), 546 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.NUMERIC)), 547 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.NAME)), 548 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.APN)), 549 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.PROXY)), 550 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.PORT)), 551 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.MMSC)), 552 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.MMSPROXY)), 553 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.MMSPORT)), 554 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.USER)), 555 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.PASSWORD)), 556 cursor.getInt(cursor.getColumnIndexOrThrow(Telephony.Carriers.AUTH_TYPE)), 557 types); 558 result.add(apn); 559 } while (cursor.moveToNext()); 560 } 561 return result; 562 } 563 564 private GsmDataConnection findFreePdp() { 565 for (DataConnection conn : pdpList) { 566 GsmDataConnection pdp = (GsmDataConnection) conn; 567 if (pdp.isInactive()) { 568 return pdp; 569 } 570 } 571 return null; 572 } 573 574 private boolean setupData(String reason) { 575 ApnSetting apn; 576 GsmDataConnection pdp; 577 578 apn = getNextApn(); 579 if (apn == null) return false; 580 pdp = findFreePdp(); 581 if (pdp == null) { 582 if (DBG) log("setupData: No free GsmDataConnection found!"); 583 return false; 584 } 585 mActiveApn = apn; 586 mActivePdp = pdp; 587 588 Message msg = obtainMessage(); 589 msg.what = EVENT_DATA_SETUP_COMPLETE; 590 msg.obj = reason; 591 pdp.connect(msg, apn); 592 593 setState(State.INITING); 594 phone.notifyDataConnection(reason); 595 return true; 596 } 597 598 protected String getInterfaceName(String apnType) { 599 if (mActivePdp != null && 600 (apnType == null || 601 (mActiveApn != null && mActiveApn.canHandleType(apnType)))) { 602 return mActivePdp.getInterface(); 603 } 604 return null; 605 } 606 607 protected String getIpAddress(String apnType) { 608 if (mActivePdp != null && 609 (apnType == null || 610 (mActiveApn != null && mActiveApn.canHandleType(apnType)))) { 611 return mActivePdp.getIpAddress(); 612 } 613 return null; 614 } 615 616 public String getGateway(String apnType) { 617 if (mActivePdp != null && 618 (apnType == null || 619 (mActiveApn != null && mActiveApn.canHandleType(apnType)))) { 620 return mActivePdp.getGatewayAddress(); 621 } 622 return null; 623 } 624 625 protected String[] getDnsServers(String apnType) { 626 if (mActivePdp != null && 627 (apnType == null || 628 (mActiveApn != null && mActiveApn.canHandleType(apnType)))) { 629 return mActivePdp.getDnsServers(); 630 } 631 return null; 632 } 633 634 private boolean 635 pdpStatesHasCID (ArrayList<DataCallState> states, int cid) { 636 for (int i = 0, s = states.size() ; i < s ; i++) { 637 if (states.get(i).cid == cid) return true; 638 } 639 640 return false; 641 } 642 643 private boolean 644 pdpStatesHasActiveCID (ArrayList<DataCallState> states, int cid) { 645 for (int i = 0, s = states.size() ; i < s ; i++) { 646 if ((states.get(i).cid == cid) && (states.get(i).active != 0)) { 647 return true; 648 } 649 } 650 651 return false; 652 } 653 654 /** 655 * Handles changes to the APN database. 656 */ 657 private void onApnChanged() { 658 boolean isConnected; 659 660 isConnected = (state != State.IDLE && state != State.FAILED); 661 662 // The "current" may no longer be valid. MMS depends on this to send properly. 663 mGsmPhone.updateCurrentCarrierInProvider(); 664 665 // TODO: It'd be nice to only do this if the changed entrie(s) 666 // match the current operator. 667 createAllApnList(); 668 if (state != State.DISCONNECTING) { 669 cleanUpConnection(isConnected, Phone.REASON_APN_CHANGED); 670 if (!isConnected) { 671 // reset reconnect timer 672 mRetryMgr.resetRetryCount(); 673 mReregisterOnReconnectFailure = false; 674 trySetupData(Phone.REASON_APN_CHANGED); 675 } 676 } 677 } 678 679 /** 680 * @param explicitPoll if true, indicates that *we* polled for this 681 * update while state == CONNECTED rather than having it delivered 682 * via an unsolicited response (which could have happened at any 683 * previous state 684 */ 685 protected void onPdpStateChanged (AsyncResult ar, boolean explicitPoll) { 686 ArrayList<DataCallState> pdpStates; 687 688 pdpStates = (ArrayList<DataCallState>)(ar.result); 689 690 if (ar.exception != null) { 691 // This is probably "radio not available" or something 692 // of that sort. If so, the whole connection is going 693 // to come down soon anyway 694 return; 695 } 696 697 if (state == State.CONNECTED) { 698 // The way things are supposed to work, the PDP list 699 // should not contain the CID after it disconnects. 700 // However, the way things really work, sometimes the PDP 701 // context is still listed with active = false, which 702 // makes it hard to distinguish an activating context from 703 // an activated-and-then deactivated one. 704 if (!pdpStatesHasCID(pdpStates, cidActive)) { 705 // It looks like the PDP context has deactivated. 706 // Tear everything down and try to reconnect. 707 708 Log.i(LOG_TAG, "PDP connection has dropped. Reconnecting"); 709 710 // Add an event log when the network drops PDP 711 GsmCellLocation loc = ((GsmCellLocation)phone.getCellLocation()); 712 EventLog.writeEvent(EventLogTags.PDP_NETWORK_DROP, 713 loc != null ? loc.getCid() : -1, 714 TelephonyManager.getDefault().getNetworkType()); 715 716 cleanUpConnection(true, null); 717 return; 718 } else if (!pdpStatesHasActiveCID(pdpStates, cidActive)) { 719 // Here, we only consider this authoritative if we asked for the 720 // PDP list. If it was an unsolicited response, we poll again 721 // to make sure everyone agrees on the initial state. 722 723 if (!explicitPoll) { 724 // We think it disconnected but aren't sure...poll from our side 725 phone.mCM.getPDPContextList( 726 this.obtainMessage(EVENT_GET_PDP_LIST_COMPLETE)); 727 } else { 728 Log.i(LOG_TAG, "PDP connection has dropped (active=false case). " 729 + " Reconnecting"); 730 731 // Log the network drop on the event log. 732 GsmCellLocation loc = ((GsmCellLocation)phone.getCellLocation()); 733 EventLog.writeEvent(EventLogTags.PDP_NETWORK_DROP, 734 loc != null ? loc.getCid() : -1, 735 TelephonyManager.getDefault().getNetworkType()); 736 737 cleanUpConnection(true, null); 738 } 739 } 740 } 741 } 742 743 private void notifyDefaultData(String reason) { 744 setState(State.CONNECTED); 745 phone.notifyDataConnection(reason); 746 startNetStatPoll(); 747 // reset reconnect timer 748 mRetryMgr.resetRetryCount(); 749 mReregisterOnReconnectFailure = false; 750 } 751 752 private void gotoIdleAndNotifyDataConnection(String reason) { 753 if (DBG) log("gotoIdleAndNotifyDataConnection: reason=" + reason); 754 setState(State.IDLE); 755 phone.notifyDataConnection(reason); 756 mActiveApn = null; 757 } 758 759 /** 760 * This is a kludge to deal with the fact that 761 * the PDP state change notification doesn't always work 762 * with certain RIL impl's/basebands 763 * 764 */ 765 private void startPeriodicPdpPoll() { 766 removeMessages(EVENT_POLL_PDP); 767 768 sendMessageDelayed(obtainMessage(EVENT_POLL_PDP), POLL_PDP_MILLIS); 769 } 770 771 private void resetPollStats() { 772 txPkts = -1; 773 rxPkts = -1; 774 sentSinceLastRecv = 0; 775 netStatPollPeriod = POLL_NETSTAT_MILLIS; 776 mNoRecvPollCount = 0; 777 } 778 779 private void doRecovery() { 780 if (state == State.CONNECTED) { 781 int maxPdpReset = Settings.Secure.getInt(mResolver, 782 Settings.Secure.PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT, 783 DEFAULT_MAX_PDP_RESET_FAIL); 784 if (mPdpResetCount < maxPdpReset) { 785 mPdpResetCount++; 786 EventLog.writeEvent(EventLogTags.PDP_RADIO_RESET, sentSinceLastRecv); 787 cleanUpConnection(true, Phone.REASON_PDP_RESET); 788 } else { 789 mPdpResetCount = 0; 790 EventLog.writeEvent(EventLogTags.PDP_REREGISTER_NETWORK, sentSinceLastRecv); 791 mGsmPhone.mSST.reRegisterNetwork(null); 792 } 793 // TODO: Add increasingly drastic recovery steps, eg, 794 // reset the radio, reset the device. 795 } 796 } 797 798 protected void startNetStatPoll() { 799 if (state == State.CONNECTED && mPingTestActive == false && netStatPollEnabled == false) { 800 Log.d(LOG_TAG, "[DataConnection] Start poll NetStat"); 801 resetPollStats(); 802 netStatPollEnabled = true; 803 mPollNetStat.run(); 804 } 805 } 806 807 protected void stopNetStatPoll() { 808 netStatPollEnabled = false; 809 removeCallbacks(mPollNetStat); 810 Log.d(LOG_TAG, "[DataConnection] Stop poll NetStat"); 811 } 812 813 protected void restartRadio() { 814 Log.d(LOG_TAG, "************TURN OFF RADIO**************"); 815 cleanUpConnection(true, Phone.REASON_RADIO_TURNED_OFF); 816 mGsmPhone.mSST.powerOffRadioSafely(); 817 /* Note: no need to call setRadioPower(true). Assuming the desired 818 * radio power state is still ON (as tracked by ServiceStateTracker), 819 * ServiceStateTracker will call setRadioPower when it receives the 820 * RADIO_STATE_CHANGED notification for the power off. And if the 821 * desired power state has changed in the interim, we don't want to 822 * override it with an unconditional power on. 823 */ 824 825 int reset = Integer.parseInt(SystemProperties.get("net.ppp.reset-by-timeout", "0")); 826 SystemProperties.set("net.ppp.reset-by-timeout", String.valueOf(reset+1)); 827 } 828 829 private Runnable mPollNetStat = new Runnable() 830 { 831 832 public void run() { 833 long sent, received; 834 long preTxPkts = -1, preRxPkts = -1; 835 836 Activity newActivity; 837 838 preTxPkts = txPkts; 839 preRxPkts = rxPkts; 840 841 txPkts = TrafficStats.getMobileTxPackets(); 842 rxPkts = TrafficStats.getMobileRxPackets(); 843 844 //Log.d(LOG_TAG, "rx " + String.valueOf(rxPkts) + " tx " + String.valueOf(txPkts)); 845 846 if (netStatPollEnabled && (preTxPkts > 0 || preRxPkts > 0)) { 847 sent = txPkts - preTxPkts; 848 received = rxPkts - preRxPkts; 849 850 if ( sent > 0 && received > 0 ) { 851 sentSinceLastRecv = 0; 852 newActivity = Activity.DATAINANDOUT; 853 mPdpResetCount = 0; 854 } else if (sent > 0 && received == 0) { 855 if (phone.getState() == Phone.State.IDLE) { 856 sentSinceLastRecv += sent; 857 } else { 858 sentSinceLastRecv = 0; 859 } 860 newActivity = Activity.DATAOUT; 861 } else if (sent == 0 && received > 0) { 862 sentSinceLastRecv = 0; 863 newActivity = Activity.DATAIN; 864 mPdpResetCount = 0; 865 } else if (sent == 0 && received == 0) { 866 newActivity = Activity.NONE; 867 } else { 868 sentSinceLastRecv = 0; 869 newActivity = Activity.NONE; 870 } 871 872 if (activity != newActivity && mIsScreenOn) { 873 activity = newActivity; 874 phone.notifyDataActivity(); 875 } 876 } 877 878 int watchdogTrigger = Settings.Secure.getInt(mResolver, 879 Settings.Secure.PDP_WATCHDOG_TRIGGER_PACKET_COUNT, 880 NUMBER_SENT_PACKETS_OF_HANG); 881 882 if (sentSinceLastRecv >= watchdogTrigger) { 883 // we already have NUMBER_SENT_PACKETS sent without ack 884 if (mNoRecvPollCount == 0) { 885 EventLog.writeEvent(EventLogTags.PDP_RADIO_RESET_COUNTDOWN_TRIGGERED, 886 sentSinceLastRecv); 887 } 888 889 int noRecvPollLimit = Settings.Secure.getInt(mResolver, 890 Settings.Secure.PDP_WATCHDOG_ERROR_POLL_COUNT, NO_RECV_POLL_LIMIT); 891 892 if (mNoRecvPollCount < noRecvPollLimit) { 893 // It's possible the PDP context went down and we weren't notified. 894 // Start polling the context list in an attempt to recover. 895 if (DBG) log("no DATAIN in a while; polling PDP"); 896 phone.mCM.getDataCallList(obtainMessage(EVENT_GET_PDP_LIST_COMPLETE)); 897 898 mNoRecvPollCount++; 899 900 // Slow down the poll interval to let things happen 901 netStatPollPeriod = Settings.Secure.getInt(mResolver, 902 Settings.Secure.PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS, 903 POLL_NETSTAT_SLOW_MILLIS); 904 } else { 905 if (DBG) log("Sent " + String.valueOf(sentSinceLastRecv) + 906 " pkts since last received"); 907 // We've exceeded the threshold. Run ping test as a final check; 908 // it will proceed with recovery if ping fails. 909 stopNetStatPoll(); 910 Thread pingTest = new Thread() { 911 public void run() { 912 runPingTest(); 913 } 914 }; 915 mPingTestActive = true; 916 pingTest.start(); 917 } 918 } else { 919 mNoRecvPollCount = 0; 920 if (mIsScreenOn) { 921 netStatPollPeriod = Settings.Secure.getInt(mResolver, 922 Settings.Secure.PDP_WATCHDOG_POLL_INTERVAL_MS, POLL_NETSTAT_MILLIS); 923 } else { 924 netStatPollPeriod = Settings.Secure.getInt(mResolver, 925 Settings.Secure.PDP_WATCHDOG_LONG_POLL_INTERVAL_MS, 926 POLL_NETSTAT_SCREEN_OFF_MILLIS); 927 } 928 } 929 930 if (netStatPollEnabled) { 931 mDataConnectionTracker.postDelayed(this, netStatPollPeriod); 932 } 933 } 934 }; 935 936 private void runPingTest () { 937 int status = -1; 938 try { 939 String address = Settings.Secure.getString(mResolver, 940 Settings.Secure.PDP_WATCHDOG_PING_ADDRESS); 941 int deadline = Settings.Secure.getInt(mResolver, 942 Settings.Secure.PDP_WATCHDOG_PING_DEADLINE, DEFAULT_PING_DEADLINE); 943 if (DBG) log("pinging " + address + " for " + deadline + "s"); 944 if (address != null && !NULL_IP.equals(address)) { 945 Process p = Runtime.getRuntime() 946 .exec("ping -c 1 -i 1 -w "+ deadline + " " + address); 947 status = p.waitFor(); 948 } 949 } catch (IOException e) { 950 Log.w(LOG_TAG, "ping failed: IOException"); 951 } catch (Exception e) { 952 Log.w(LOG_TAG, "exception trying to ping"); 953 } 954 955 if (status == 0) { 956 // ping succeeded. False alarm. Reset netStatPoll. 957 // ("-1" for this event indicates a false alarm) 958 EventLog.writeEvent(EventLogTags.PDP_RADIO_RESET, -1); 959 mPdpResetCount = 0; 960 sendMessage(obtainMessage(EVENT_START_NETSTAT_POLL)); 961 } else { 962 // ping failed. Proceed with recovery. 963 sendMessage(obtainMessage(EVENT_START_RECOVERY)); 964 } 965 } 966 967 /** 968 * Returns true if the last fail cause is something that 969 * seems like it deserves an error notification. 970 * Transient errors are ignored 971 */ 972 private boolean shouldPostNotification(GsmDataConnection.FailCause cause) { 973 return (cause != GsmDataConnection.FailCause.UNKNOWN); 974 } 975 976 /** 977 * Return true if data connection need to be setup after disconnected due to 978 * reason. 979 * 980 * @param reason the reason why data is disconnected 981 * @return true if try setup data connection is need for this reason 982 */ 983 private boolean retryAfterDisconnected(String reason) { 984 boolean retry = true; 985 986 if ( Phone.REASON_RADIO_TURNED_OFF.equals(reason) ) { 987 retry = false; 988 } 989 return retry; 990 } 991 992 private void reconnectAfterFail(FailCause lastFailCauseCode, String reason) { 993 if (state == State.FAILED) { 994 if (!mRetryMgr.isRetryNeeded()) { 995 if (!mRequestedApnType.equals(Phone.APN_TYPE_DEFAULT)) { 996 // if no more retries on a secondary APN attempt, tell the world and revert. 997 phone.notifyDataConnection(Phone.REASON_APN_FAILED); 998 onEnableApn(apnTypeToId(mRequestedApnType), DISABLED); 999 return; 1000 } 1001 if (mReregisterOnReconnectFailure) { 1002 // We've re-registerd once now just retry forever. 1003 mRetryMgr.retryForeverUsingLastTimeout(); 1004 } else { 1005 // Try to re-register to the network. 1006 Log.d(LOG_TAG, "PDP activate failed, Reregistering to the network"); 1007 mReregisterOnReconnectFailure = true; 1008 mGsmPhone.mSST.reRegisterNetwork(null); 1009 mRetryMgr.resetRetryCount(); 1010 return; 1011 } 1012 } 1013 1014 int nextReconnectDelay = mRetryMgr.getRetryTimer(); 1015 Log.d(LOG_TAG, "PDP activate failed. Scheduling next attempt for " 1016 + (nextReconnectDelay / 1000) + "s"); 1017 1018 AlarmManager am = 1019 (AlarmManager) phone.getContext().getSystemService(Context.ALARM_SERVICE); 1020 Intent intent = new Intent(INTENT_RECONNECT_ALARM); 1021 intent.putExtra(INTENT_RECONNECT_ALARM_EXTRA_REASON, reason); 1022 mReconnectIntent = PendingIntent.getBroadcast( 1023 phone.getContext(), 0, intent, 0); 1024 am.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, 1025 SystemClock.elapsedRealtime() + nextReconnectDelay, 1026 mReconnectIntent); 1027 1028 mRetryMgr.increaseRetryCount(); 1029 1030 if (!shouldPostNotification(lastFailCauseCode)) { 1031 Log.d(LOG_TAG,"NOT Posting GPRS Unavailable notification " 1032 + "-- likely transient error"); 1033 } else { 1034 notifyNoData(lastFailCauseCode); 1035 } 1036 } 1037 } 1038 1039 private void notifyNoData(GsmDataConnection.FailCause lastFailCauseCode) { 1040 setState(State.FAILED); 1041 } 1042 1043 protected void onRecordsLoaded() { 1044 createAllApnList(); 1045 if (state == State.FAILED) { 1046 cleanUpConnection(false, null); 1047 } 1048 sendMessage(obtainMessage(EVENT_TRY_SETUP_DATA, Phone.REASON_SIM_LOADED)); 1049 } 1050 1051 @Override 1052 protected void onEnableNewApn() { 1053 // change our retry manager to use the appropriate numbers for the new APN 1054 if (mRequestedApnType.equals(Phone.APN_TYPE_DEFAULT)) { 1055 mRetryMgr = mDefaultRetryManager; 1056 } else { 1057 mRetryMgr = mSecondaryRetryManager; 1058 } 1059 mRetryMgr.resetRetryCount(); 1060 1061 // TODO: To support simultaneous PDP contexts, this should really only call 1062 // cleanUpConnection if it needs to free up a GsmDataConnection. 1063 cleanUpConnection(true, Phone.REASON_APN_SWITCHED); 1064 } 1065 1066 protected boolean onTrySetupData(String reason) { 1067 return trySetupData(reason); 1068 } 1069 1070 @Override 1071 protected void onRoamingOff() { 1072 trySetupData(Phone.REASON_ROAMING_OFF); 1073 } 1074 1075 @Override 1076 protected void onRoamingOn() { 1077 if (getDataOnRoamingEnabled()) { 1078 trySetupData(Phone.REASON_ROAMING_ON); 1079 } else { 1080 if (DBG) log("Tear down data connection on roaming."); 1081 cleanUpConnection(true, Phone.REASON_ROAMING_ON); 1082 } 1083 } 1084 1085 protected void onRadioAvailable() { 1086 if (phone.getSimulatedRadioControl() != null) { 1087 // Assume data is connected on the simulator 1088 // FIXME this can be improved 1089 setState(State.CONNECTED); 1090 phone.notifyDataConnection(null); 1091 1092 Log.i(LOG_TAG, "We're on the simulator; assuming data is connected"); 1093 } 1094 1095 if (state != State.IDLE) { 1096 cleanUpConnection(true, null); 1097 } 1098 } 1099 1100 protected void onRadioOffOrNotAvailable() { 1101 // Make sure our reconnect delay starts at the initial value 1102 // next time the radio comes on 1103 mRetryMgr.resetRetryCount(); 1104 mReregisterOnReconnectFailure = false; 1105 1106 if (phone.getSimulatedRadioControl() != null) { 1107 // Assume data is connected on the simulator 1108 // FIXME this can be improved 1109 Log.i(LOG_TAG, "We're on the simulator; assuming radio off is meaningless"); 1110 } else { 1111 if (DBG) log("Radio is off and clean up all connection"); 1112 // TODO: Should we reset mRequestedApnType to "default"? 1113 cleanUpConnection(false, Phone.REASON_RADIO_TURNED_OFF); 1114 } 1115 } 1116 1117 protected void onDataSetupComplete(AsyncResult ar) { 1118 String reason = null; 1119 if (ar.userObj instanceof String) { 1120 reason = (String) ar.userObj; 1121 } 1122 1123 if (ar.exception == null) { 1124 // everything is setup 1125 if (isApnTypeActive(Phone.APN_TYPE_DEFAULT)) { 1126 SystemProperties.set("gsm.defaultpdpcontext.active", "true"); 1127 if (canSetPreferApn && preferredApn == null) { 1128 Log.d(LOG_TAG, "PREFERED APN is null"); 1129 preferredApn = mActiveApn; 1130 setPreferredApn(preferredApn.id); 1131 } 1132 } else { 1133 SystemProperties.set("gsm.defaultpdpcontext.active", "false"); 1134 } 1135 notifyDefaultData(reason); 1136 1137 // TODO: For simultaneous PDP support, we need to build another 1138 // trigger another TRY_SETUP_DATA for the next APN type. (Note 1139 // that the existing connection may service that type, in which 1140 // case we should try the next type, etc. 1141 } else { 1142 GsmDataConnection.FailCause cause; 1143 cause = (GsmDataConnection.FailCause) (ar.result); 1144 if(DBG) log("PDP setup failed " + cause); 1145 // Log this failure to the Event Logs. 1146 if (cause.isEventLoggable()) { 1147 GsmCellLocation loc = ((GsmCellLocation)phone.getCellLocation()); 1148 EventLog.writeEvent(EventLogTags.PDP_SETUP_FAIL, 1149 cause.ordinal(), loc != null ? loc.getCid() : -1, 1150 TelephonyManager.getDefault().getNetworkType()); 1151 } 1152 1153 // No try for permanent failure 1154 if (cause.isPermanentFail()) { 1155 notifyNoData(cause); 1156 if (!mRequestedApnType.equals(Phone.APN_TYPE_DEFAULT)) { 1157 phone.notifyDataConnection(Phone.REASON_APN_FAILED); 1158 onEnableApn(apnTypeToId(mRequestedApnType), DISABLED); 1159 } 1160 return; 1161 } 1162 1163 waitingApns.remove(0); 1164 if (waitingApns.isEmpty()) { 1165 // No more to try, start delayed retry 1166 startDelayedRetry(cause, reason); 1167 } else { 1168 // we still have more apns to try 1169 setState(State.SCANNING); 1170 // Wait a bit before trying the next APN, so that 1171 // we're not tying up the RIL command channel 1172 sendMessageDelayed(obtainMessage(EVENT_TRY_SETUP_DATA, reason), APN_DELAY_MILLIS); 1173 } 1174 } 1175 } 1176 1177 /** 1178 * Called when EVENT_DISCONNECT_DONE is received. 1179 */ 1180 protected void onDisconnectDone(AsyncResult ar) { 1181 String reason = null; 1182 if(DBG) log("EVENT_DISCONNECT_DONE"); 1183 if (ar.userObj instanceof String) { 1184 reason = (String) ar.userObj; 1185 } 1186 setState(State.IDLE); 1187 phone.notifyDataConnection(reason); 1188 mActiveApn = null; 1189 if (retryAfterDisconnected(reason)) { 1190 trySetupData(reason); 1191 } 1192 } 1193 1194 /** 1195 * Called when EVENT_RESET_DONE is received. 1196 */ 1197 @Override 1198 protected void onResetDone(AsyncResult ar) { 1199 if (DBG) log("EVENT_RESET_DONE"); 1200 String reason = null; 1201 if (ar.userObj instanceof String) { 1202 reason = (String) ar.userObj; 1203 } 1204 gotoIdleAndNotifyDataConnection(reason); 1205 } 1206 1207 protected void onPollPdp() { 1208 if (state == State.CONNECTED) { 1209 // only poll when connected 1210 phone.mCM.getPDPContextList(this.obtainMessage(EVENT_GET_PDP_LIST_COMPLETE)); 1211 sendMessageDelayed(obtainMessage(EVENT_POLL_PDP), POLL_PDP_MILLIS); 1212 } 1213 } 1214 1215 protected void onVoiceCallStarted() { 1216 if (state == State.CONNECTED && ! mGsmPhone.mSST.isConcurrentVoiceAndData()) { 1217 stopNetStatPoll(); 1218 phone.notifyDataConnection(Phone.REASON_VOICE_CALL_STARTED); 1219 } 1220 } 1221 1222 protected void onVoiceCallEnded() { 1223 if (state == State.CONNECTED) { 1224 if (!mGsmPhone.mSST.isConcurrentVoiceAndData()) { 1225 startNetStatPoll(); 1226 phone.notifyDataConnection(Phone.REASON_VOICE_CALL_ENDED); 1227 } else { 1228 // clean slate after call end. 1229 resetPollStats(); 1230 } 1231 } else { 1232 // reset reconnect timer 1233 mRetryMgr.resetRetryCount(); 1234 mReregisterOnReconnectFailure = false; 1235 // in case data setup was attempted when we were on a voice call 1236 trySetupData(Phone.REASON_VOICE_CALL_ENDED); 1237 } 1238 } 1239 1240 protected void onCleanUpConnection(boolean tearDown, String reason) { 1241 cleanUpConnection(tearDown, reason); 1242 } 1243 1244 /** 1245 * Based on the sim operator numeric, create a list for all possible pdps 1246 * with all apns associated with that pdp 1247 * 1248 * 1249 */ 1250 private void createAllApnList() { 1251 allApns = new ArrayList<ApnSetting>(); 1252 String operator = mGsmPhone.mSIMRecords.getSIMOperatorNumeric(); 1253 1254 if (operator != null) { 1255 String selection = "numeric = '" + operator + "'"; 1256 1257 Cursor cursor = phone.getContext().getContentResolver().query( 1258 Telephony.Carriers.CONTENT_URI, null, selection, null, null); 1259 1260 if (cursor != null) { 1261 if (cursor.getCount() > 0) { 1262 allApns = createApnList(cursor); 1263 // TODO: Figure out where this fits in. This basically just 1264 // writes the pap-secrets file. No longer tied to GsmDataConnection 1265 // object. Not used on current platform (no ppp). 1266 //GsmDataConnection pdp = pdpList.get(pdp_name); 1267 //if (pdp != null && pdp.dataLink != null) { 1268 // pdp.dataLink.setPasswordInfo(cursor); 1269 //} 1270 } 1271 cursor.close(); 1272 } 1273 } 1274 1275 if (allApns.isEmpty()) { 1276 if (DBG) log("No APN found for carrier: " + operator); 1277 preferredApn = null; 1278 notifyNoData(GsmDataConnection.FailCause.MISSING_UKNOWN_APN); 1279 } else { 1280 preferredApn = getPreferredApn(); 1281 Log.d(LOG_TAG, "Get PreferredAPN"); 1282 if (preferredApn != null && !preferredApn.numeric.equals(operator)) { 1283 preferredApn = null; 1284 setPreferredApn(-1); 1285 } 1286 } 1287 } 1288 1289 private void createAllPdpList() { 1290 pdpList = new ArrayList<DataConnection>(); 1291 DataConnection pdp; 1292 1293 for (int i = 0; i < PDP_CONNECTION_POOL_SIZE; i++) { 1294 pdp = GsmDataConnection.makeDataConnection(mGsmPhone); 1295 pdpList.add(pdp); 1296 } 1297 } 1298 1299 private void destroyAllPdpList() { 1300 if(pdpList != null) { 1301 GsmDataConnection pdp; 1302 pdpList.removeAll(pdpList); 1303 } 1304 } 1305 1306 /** 1307 * 1308 * @return waitingApns list to be used to create PDP 1309 * error when waitingApns.isEmpty() 1310 */ 1311 private ArrayList<ApnSetting> buildWaitingApns() { 1312 ArrayList<ApnSetting> apnList = new ArrayList<ApnSetting>(); 1313 String operator = mGsmPhone.mSIMRecords.getSIMOperatorNumeric(); 1314 1315 if (mRequestedApnType.equals(Phone.APN_TYPE_DEFAULT)) { 1316 if (canSetPreferApn && preferredApn != null) { 1317 Log.i(LOG_TAG, "Preferred APN:" + operator + ":" 1318 + preferredApn.numeric + ":" + preferredApn); 1319 if (preferredApn.numeric.equals(operator)) { 1320 Log.i(LOG_TAG, "Waiting APN set to preferred APN"); 1321 apnList.add(preferredApn); 1322 return apnList; 1323 } else { 1324 setPreferredApn(-1); 1325 preferredApn = null; 1326 } 1327 } 1328 } 1329 1330 if (allApns != null) { 1331 for (ApnSetting apn : allApns) { 1332 if (apn.canHandleType(mRequestedApnType)) { 1333 apnList.add(apn); 1334 } 1335 } 1336 } 1337 return apnList; 1338 } 1339 1340 /** 1341 * Get next apn in waitingApns 1342 * @return the first apn found in waitingApns, null if none 1343 */ 1344 private ApnSetting getNextApn() { 1345 ArrayList<ApnSetting> list = waitingApns; 1346 ApnSetting apn = null; 1347 1348 if (list != null) { 1349 if (!list.isEmpty()) { 1350 apn = list.get(0); 1351 } 1352 } 1353 return apn; 1354 } 1355 1356 private String apnListToString (ArrayList<ApnSetting> apns) { 1357 StringBuilder result = new StringBuilder(); 1358 for (int i = 0, size = apns.size(); i < size; i++) { 1359 result.append('[') 1360 .append(apns.get(i).toString()) 1361 .append(']'); 1362 } 1363 return result.toString(); 1364 } 1365 1366 private void startDelayedRetry(GsmDataConnection.FailCause cause, String reason) { 1367 notifyNoData(cause); 1368 reconnectAfterFail(cause, reason); 1369 } 1370 1371 private void setPreferredApn(int pos) { 1372 if (!canSetPreferApn) { 1373 return; 1374 } 1375 1376 ContentResolver resolver = phone.getContext().getContentResolver(); 1377 resolver.delete(PREFERAPN_URI, null, null); 1378 1379 if (pos >= 0) { 1380 ContentValues values = new ContentValues(); 1381 values.put(APN_ID, pos); 1382 resolver.insert(PREFERAPN_URI, values); 1383 } 1384 } 1385 1386 private ApnSetting getPreferredApn() { 1387 if (allApns.isEmpty()) { 1388 return null; 1389 } 1390 1391 Cursor cursor = phone.getContext().getContentResolver().query( 1392 PREFERAPN_URI, new String[] { "_id", "name", "apn" }, 1393 null, null, Telephony.Carriers.DEFAULT_SORT_ORDER); 1394 1395 if (cursor != null) { 1396 canSetPreferApn = true; 1397 } else { 1398 canSetPreferApn = false; 1399 } 1400 1401 if (canSetPreferApn && cursor.getCount() > 0) { 1402 int pos; 1403 cursor.moveToFirst(); 1404 pos = cursor.getInt(cursor.getColumnIndexOrThrow(Telephony.Carriers._ID)); 1405 for(ApnSetting p:allApns) { 1406 if (p.id == pos && p.canHandleType(mRequestedApnType)) { 1407 cursor.close(); 1408 return p; 1409 } 1410 } 1411 } 1412 1413 if (cursor != null) { 1414 cursor.close(); 1415 } 1416 1417 return null; 1418 } 1419 1420 public void handleMessage (Message msg) { 1421 if (DBG) Log.d(LOG_TAG,"GSMDataConnTrack handleMessage "+msg); 1422 1423 if (!mGsmPhone.mIsTheCurrentActivePhone) { 1424 Log.d(LOG_TAG, "Ignore GSM msgs since GSM phone is inactive"); 1425 return; 1426 } 1427 1428 switch (msg.what) { 1429 case EVENT_RECORDS_LOADED: 1430 onRecordsLoaded(); 1431 break; 1432 1433 case EVENT_GPRS_DETACHED: 1434 onGprsDetached(); 1435 break; 1436 1437 case EVENT_GPRS_ATTACHED: 1438 onGprsAttached(); 1439 break; 1440 1441 case EVENT_DATA_STATE_CHANGED: 1442 onPdpStateChanged((AsyncResult) msg.obj, false); 1443 break; 1444 1445 case EVENT_GET_PDP_LIST_COMPLETE: 1446 onPdpStateChanged((AsyncResult) msg.obj, true); 1447 break; 1448 1449 case EVENT_POLL_PDP: 1450 onPollPdp(); 1451 break; 1452 1453 case EVENT_START_NETSTAT_POLL: 1454 mPingTestActive = false; 1455 startNetStatPoll(); 1456 break; 1457 1458 case EVENT_START_RECOVERY: 1459 mPingTestActive = false; 1460 doRecovery(); 1461 break; 1462 1463 case EVENT_APN_CHANGED: 1464 onApnChanged(); 1465 break; 1466 1467 case EVENT_PS_RESTRICT_ENABLED: 1468 /** 1469 * We don't need to explicitly to tear down the PDP context 1470 * when PS restricted is enabled. The base band will deactive 1471 * PDP context and notify us with PDP_CONTEXT_CHANGED. 1472 * But we should stop the network polling and prevent reset PDP. 1473 */ 1474 Log.d(LOG_TAG, "[DSAC DEB] " + "EVENT_PS_RESTRICT_ENABLED " + mIsPsRestricted); 1475 stopNetStatPoll(); 1476 mIsPsRestricted = true; 1477 break; 1478 1479 case EVENT_PS_RESTRICT_DISABLED: 1480 /** 1481 * When PS restrict is removed, we need setup PDP connection if 1482 * PDP connection is down. 1483 */ 1484 Log.d(LOG_TAG, "[DSAC DEB] " + "EVENT_PS_RESTRICT_DISABLED " + mIsPsRestricted); 1485 mIsPsRestricted = false; 1486 if (state == State.CONNECTED) { 1487 startNetStatPoll(); 1488 } else { 1489 if (state == State.FAILED) { 1490 cleanUpConnection(false, Phone.REASON_PS_RESTRICT_ENABLED); 1491 mRetryMgr.resetRetryCount(); 1492 mReregisterOnReconnectFailure = false; 1493 } 1494 trySetupData(Phone.REASON_PS_RESTRICT_ENABLED); 1495 } 1496 break; 1497 1498 default: 1499 // handle the message in the super class DataConnectionTracker 1500 super.handleMessage(msg); 1501 break; 1502 } 1503 } 1504 1505 protected void log(String s) { 1506 Log.d(LOG_TAG, "[GsmDataConnectionTracker] " + s); 1507 } 1508} 1509