GsmDataConnectionTracker.java revision 02722fbd77fa22f60ed3778b806b1e8f176b88c1
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.NetworkInfo; 31import android.net.Uri; 32import android.net.wifi.WifiManager; 33import android.os.AsyncResult; 34import android.os.INetStatService; 35import android.os.Message; 36import android.os.RemoteException; 37import android.os.ServiceManager; 38import android.os.SystemClock; 39import android.os.SystemProperties; 40import android.preference.PreferenceManager; 41import android.provider.Checkin; 42import android.provider.Settings; 43import android.provider.Telephony; 44import android.telephony.ServiceState; 45import android.telephony.TelephonyManager; 46import android.telephony.gsm.GsmCellLocation; 47import android.text.TextUtils; 48import android.util.EventLog; 49import android.util.Log; 50 51import com.android.internal.telephony.DataCallState; 52import com.android.internal.telephony.DataConnection; 53import com.android.internal.telephony.DataConnectionTracker; 54import com.android.internal.telephony.Phone; 55import com.android.internal.telephony.RetryManager; 56import com.android.internal.telephony.TelephonyEventLog; 57import com.android.internal.telephony.DataConnection.FailCause; 58 59import java.io.IOException; 60import java.util.ArrayList; 61 62/** 63 * {@hide} 64 */ 65public final class GsmDataConnectionTracker extends DataConnectionTracker { 66 protected final String LOG_TAG = "GSM"; 67 68 private GSMPhone mGsmPhone; 69 /** 70 * Handles changes to the APN db. 71 */ 72 private class ApnChangeObserver extends ContentObserver { 73 public ApnChangeObserver () { 74 super(mDataConnectionTracker); 75 } 76 77 @Override 78 public void onChange(boolean selfChange) { 79 sendMessage(obtainMessage(EVENT_APN_CHANGED)); 80 } 81 } 82 83 //***** Instance Variables 84 85 INetStatService netstat; 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 this.netstat = INetStatService.Stub.asInterface(ServiceManager.getService("netstat")); 222 223 IntentFilter filter = new IntentFilter(); 224 filter.addAction(INTENT_RECONNECT_ALARM); 225 filter.addAction(Intent.ACTION_SCREEN_ON); 226 filter.addAction(Intent.ACTION_SCREEN_OFF); 227 filter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION); 228 filter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION); 229 230 // TODO: Why is this registering the phone as the receiver of the intent 231 // and not its own handler? 232 p.getContext().registerReceiver(mIntentReceiver, filter, null, p); 233 234 235 mDataConnectionTracker = this; 236 mResolver = phone.getContext().getContentResolver(); 237 238 apnObserver = new ApnChangeObserver(); 239 p.getContext().getContentResolver().registerContentObserver( 240 Telephony.Carriers.CONTENT_URI, true, apnObserver); 241 242 createAllPdpList(); 243 244 // This preference tells us 1) initial condition for "dataEnabled", 245 // and 2) whether the RIL will setup the baseband to auto-PS attach. 246 SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(phone.getContext()); 247 dataEnabled[APN_DEFAULT_ID] = !sp.getBoolean(GSMPhone.DATA_DISABLED_ON_BOOT_KEY, false); 248 if (dataEnabled[APN_DEFAULT_ID]) { 249 enabledCount++; 250 } 251 noAutoAttach = !dataEnabled[APN_DEFAULT_ID]; 252 253 if (!mRetryMgr.configure(SystemProperties.get("ro.gsm.data_retry_config"))) { 254 if (!mRetryMgr.configure(DEFAULT_DATA_RETRY_CONFIG)) { 255 // Should never happen, log an error and default to a simple linear sequence. 256 Log.e(LOG_TAG, "Could not configure using DEFAULT_DATA_RETRY_CONFIG=" 257 + DEFAULT_DATA_RETRY_CONFIG); 258 mRetryMgr.configure(20, 2000, 1000); 259 } 260 } 261 262 mDefaultRetryManager = mRetryMgr; 263 mSecondaryRetryManager = new RetryManager(); 264 265 if (!mSecondaryRetryManager.configure(SystemProperties.get( 266 "ro.gsm.2nd_data_retry_config"))) { 267 if (!mSecondaryRetryManager.configure(SECONDARY_DATA_RETRY_CONFIG)) { 268 // Should never happen, log an error and default to a simple sequence. 269 Log.e(LOG_TAG, "Could note configure using SECONDARY_DATA_RETRY_CONFIG=" 270 + SECONDARY_DATA_RETRY_CONFIG); 271 mSecondaryRetryManager.configure("max_retries=3, 333, 333, 333"); 272 } 273 } 274 } 275 276 public void dispose() { 277 //Unregister for all events 278 phone.mCM.unregisterForAvailable(this); 279 phone.mCM.unregisterForOffOrNotAvailable(this); 280 mGsmPhone.mSIMRecords.unregisterForRecordsLoaded(this); 281 phone.mCM.unregisterForDataStateChanged(this); 282 mGsmPhone.mCT.unregisterForVoiceCallEnded(this); 283 mGsmPhone.mCT.unregisterForVoiceCallStarted(this); 284 mGsmPhone.mSST.unregisterForGprsAttached(this); 285 mGsmPhone.mSST.unregisterForGprsDetached(this); 286 mGsmPhone.mSST.unregisterForRoamingOn(this); 287 mGsmPhone.mSST.unregisterForRoamingOff(this); 288 mGsmPhone.mSST.unregisterForPsRestrictedEnabled(this); 289 mGsmPhone.mSST.unregisterForPsRestrictedDisabled(this); 290 291 phone.getContext().unregisterReceiver(this.mIntentReceiver); 292 phone.getContext().getContentResolver().unregisterContentObserver(this.apnObserver); 293 294 destroyAllPdpList(); 295 } 296 297 protected void finalize() { 298 if(DBG) Log.d(LOG_TAG, "GsmDataConnectionTracker finalized"); 299 } 300 301 protected void setState(State s) { 302 if (DBG) log ("setState: " + s); 303 if (state != s) { 304 if (s == State.INITING) { // request PDP context 305 Checkin.updateStats( 306 phone.getContext().getContentResolver(), 307 Checkin.Stats.Tag.PHONE_GPRS_ATTEMPTED, 1, 0.0); 308 } 309 310 if (s == State.CONNECTED) { // pppd is up 311 Checkin.updateStats( 312 phone.getContext().getContentResolver(), 313 Checkin.Stats.Tag.PHONE_GPRS_CONNECTED, 1, 0.0); 314 } 315 } 316 317 state = s; 318 319 if (state == State.FAILED) { 320 if (waitingApns != null) 321 waitingApns.clear(); // when teardown the connection and set to IDLE 322 } 323 } 324 325 public String[] getActiveApnTypes() { 326 String[] result; 327 if (mActiveApn != null) { 328 result = mActiveApn.types; 329 } else { 330 result = new String[1]; 331 result[0] = Phone.APN_TYPE_DEFAULT; 332 } 333 return result; 334 } 335 336 protected String getActiveApnString() { 337 String result = null; 338 if (mActiveApn != null) { 339 result = mActiveApn.apn; 340 } 341 return result; 342 } 343 344 /** 345 * The data connection is expected to be setup while device 346 * 1. has sim card 347 * 2. registered to gprs service 348 * 3. user doesn't explicitly disable data service 349 * 4. wifi is not on 350 * 351 * @return false while no data connection if all above requirements are met. 352 */ 353 public boolean isDataConnectionAsDesired() { 354 boolean roaming = phone.getServiceState().getRoaming(); 355 356 if (mGsmPhone.mSIMRecords.getRecordsLoaded() && 357 mGsmPhone.mSST.getCurrentGprsState() == ServiceState.STATE_IN_SERVICE && 358 (!roaming || getDataOnRoamingEnabled()) && 359 !mIsWifiConnected && 360 !mIsPsRestricted ) { 361 return (state == State.CONNECTED); 362 } 363 return true; 364 } 365 366 @Override 367 protected boolean isApnTypeActive(String type) { 368 // TODO: support simultaneous with List instead 369 return mActiveApn != null && mActiveApn.canHandleType(type); 370 } 371 372 @Override 373 protected boolean isApnTypeAvailable(String type) { 374 if (allApns != null) { 375 for (ApnSetting apn : allApns) { 376 if (apn.canHandleType(type)) { 377 return true; 378 } 379 } 380 } 381 return false; 382 } 383 384 /** 385 * Formerly this method was ArrayList<GsmDataConnection> getAllPdps() 386 */ 387 public ArrayList<DataConnection> getAllDataConnections() { 388 ArrayList<DataConnection> pdps = (ArrayList<DataConnection>)pdpList.clone(); 389 return pdps; 390 } 391 392 private boolean isDataAllowed() { 393 boolean roaming = phone.getServiceState().getRoaming(); 394 return getAnyDataEnabled() && (!roaming || getDataOnRoamingEnabled()) && 395 mMasterDataEnabled; 396 } 397 398 //****** Called from ServiceStateTracker 399 /** 400 * Invoked when ServiceStateTracker observes a transition from GPRS 401 * attach to detach. 402 */ 403 protected void onGprsDetached() { 404 /* 405 * We presently believe it is unnecessary to tear down the PDP context 406 * when GPRS detaches, but we should stop the network polling. 407 */ 408 stopNetStatPoll(); 409 phone.notifyDataConnection(Phone.REASON_GPRS_DETACHED); 410 } 411 412 private void onGprsAttached() { 413 if (state == State.CONNECTED) { 414 startNetStatPoll(); 415 phone.notifyDataConnection(Phone.REASON_GPRS_ATTACHED); 416 } else { 417 if (state == State.FAILED) { 418 cleanUpConnection(false, Phone.REASON_GPRS_ATTACHED); 419 mRetryMgr.resetRetryCount(); 420 } 421 trySetupData(Phone.REASON_GPRS_ATTACHED); 422 } 423 } 424 425 private boolean trySetupData(String reason) { 426 if (DBG) log("***trySetupData due to " + (reason == null ? "(unspecified)" : reason)); 427 428 Log.d(LOG_TAG, "[DSAC DEB] " + "trySetupData with mIsPsRestricted=" + mIsPsRestricted); 429 430 if (phone.getSimulatedRadioControl() != null) { 431 // Assume data is connected on the simulator 432 // FIXME this can be improved 433 setState(State.CONNECTED); 434 phone.notifyDataConnection(reason); 435 436 Log.i(LOG_TAG, "(fix?) We're on the simulator; assuming data is connected"); 437 return true; 438 } 439 440 int gprsState = mGsmPhone.mSST.getCurrentGprsState(); 441 boolean desiredPowerState = mGsmPhone.mSST.getDesiredPowerState(); 442 443 if ((state == State.IDLE || state == State.SCANNING) 444 && (gprsState == ServiceState.STATE_IN_SERVICE || noAutoAttach) 445 && mGsmPhone.mSIMRecords.getRecordsLoaded() 446 && phone.getState() == Phone.State.IDLE 447 && isDataAllowed() 448 && !mIsPsRestricted 449 && desiredPowerState ) { 450 451 if (state == State.IDLE) { 452 waitingApns = buildWaitingApns(); 453 if (waitingApns.isEmpty()) { 454 if (DBG) log("No APN found"); 455 notifyNoData(GsmDataConnection.FailCause.MISSING_UKNOWN_APN); 456 return false; 457 } else { 458 log ("Create from allApns : " + apnListToString(allApns)); 459 } 460 } 461 462 if (DBG) { 463 log ("Setup waitngApns : " + apnListToString(waitingApns)); 464 } 465 return setupData(reason); 466 } else { 467 if (DBG) 468 log("trySetupData: Not ready for data: " + 469 " dataState=" + state + 470 " gprsState=" + gprsState + 471 " sim=" + mGsmPhone.mSIMRecords.getRecordsLoaded() + 472 " UMTS=" + mGsmPhone.mSST.isConcurrentVoiceAndData() + 473 " phoneState=" + phone.getState() + 474 " isDataAllowed=" + isDataAllowed() + 475 " dataEnabled=" + getAnyDataEnabled() + 476 " roaming=" + phone.getServiceState().getRoaming() + 477 " dataOnRoamingEnable=" + getDataOnRoamingEnabled() + 478 " ps restricted=" + mIsPsRestricted + 479 " desiredPowerState=" + desiredPowerState + 480 " MasterDataEnabled=" + mMasterDataEnabled); 481 return false; 482 } 483 } 484 485 /** 486 * If tearDown is true, this only tears down a CONNECTED session. Presently, 487 * there is no mechanism for abandoning an INITING/CONNECTING session, 488 * but would likely involve cancelling pending async requests or 489 * setting a flag or new state to ignore them when they came in 490 * @param tearDown true if the underlying GsmDataConnection should be 491 * disconnected. 492 * @param reason reason for the clean up. 493 */ 494 private void cleanUpConnection(boolean tearDown, String reason) { 495 if (DBG) log("Clean up connection due to " + reason); 496 497 // Clear the reconnect alarm, if set. 498 if (mReconnectIntent != null) { 499 AlarmManager am = 500 (AlarmManager) phone.getContext().getSystemService(Context.ALARM_SERVICE); 501 am.cancel(mReconnectIntent); 502 mReconnectIntent = null; 503 } 504 505 setState(State.DISCONNECTING); 506 507 for (DataConnection conn : pdpList) { 508 if (tearDown) { 509 Message msg = obtainMessage(EVENT_DISCONNECT_DONE, reason); 510 conn.disconnect(msg); 511 } else { 512 conn.reset(); 513 } 514 } 515 stopNetStatPoll(); 516 517 if (!tearDown) { 518 setState(State.IDLE); 519 phone.notifyDataConnection(reason); 520 mActiveApn = null; 521 } 522 } 523 524 /** 525 * @param types comma delimited list of APN types 526 * @return array of APN types 527 */ 528 private String[] parseTypes(String types) { 529 String[] result; 530 // If unset, set to DEFAULT. 531 if (types == null || types.equals("")) { 532 result = new String[1]; 533 result[0] = Phone.APN_TYPE_ALL; 534 } else { 535 result = types.split(","); 536 } 537 return result; 538 } 539 540 private ArrayList<ApnSetting> createApnList(Cursor cursor) { 541 ArrayList<ApnSetting> result = new ArrayList<ApnSetting>(); 542 if (cursor.moveToFirst()) { 543 do { 544 String[] types = parseTypes( 545 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.TYPE))); 546 ApnSetting apn = new ApnSetting( 547 cursor.getInt(cursor.getColumnIndexOrThrow(Telephony.Carriers._ID)), 548 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.NUMERIC)), 549 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.NAME)), 550 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.APN)), 551 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.PROXY)), 552 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.PORT)), 553 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.MMSC)), 554 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.MMSPROXY)), 555 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.MMSPORT)), 556 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.USER)), 557 cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Carriers.PASSWORD)), 558 cursor.getInt(cursor.getColumnIndexOrThrow(Telephony.Carriers.AUTH_TYPE)), 559 types); 560 result.add(apn); 561 } while (cursor.moveToNext()); 562 } 563 return result; 564 } 565 566 private GsmDataConnection findFreePdp() { 567 for (DataConnection conn : pdpList) { 568 GsmDataConnection pdp = (GsmDataConnection) conn; 569 if (pdp.isInactive()) { 570 return pdp; 571 } 572 } 573 return null; 574 } 575 576 private boolean setupData(String reason) { 577 ApnSetting apn; 578 GsmDataConnection pdp; 579 580 apn = getNextApn(); 581 if (apn == null) return false; 582 pdp = findFreePdp(); 583 if (pdp == null) { 584 if (DBG) log("setupData: No free GsmDataConnection found!"); 585 return false; 586 } 587 mActiveApn = apn; 588 mActivePdp = pdp; 589 590 Message msg = obtainMessage(); 591 msg.what = EVENT_DATA_SETUP_COMPLETE; 592 msg.obj = reason; 593 pdp.connect(msg, apn); 594 595 setState(State.INITING); 596 phone.notifyDataConnection(reason); 597 return true; 598 } 599 600 protected String getInterfaceName(String apnType) { 601 if (mActivePdp != null && 602 (apnType == null || 603 (mActiveApn != null && mActiveApn.canHandleType(apnType)))) { 604 return mActivePdp.getInterface(); 605 } 606 return null; 607 } 608 609 protected String getIpAddress(String apnType) { 610 if (mActivePdp != null && 611 (apnType == null || 612 (mActiveApn != null && mActiveApn.canHandleType(apnType)))) { 613 return mActivePdp.getIpAddress(); 614 } 615 return null; 616 } 617 618 public String getGateway(String apnType) { 619 if (mActivePdp != null && 620 (apnType == null || 621 (mActiveApn != null && mActiveApn.canHandleType(apnType)))) { 622 return mActivePdp.getGatewayAddress(); 623 } 624 return null; 625 } 626 627 protected String[] getDnsServers(String apnType) { 628 if (mActivePdp != null && 629 (apnType == null || 630 (mActiveApn != null && mActiveApn.canHandleType(apnType)))) { 631 return mActivePdp.getDnsServers(); 632 } 633 return null; 634 } 635 636 private boolean 637 pdpStatesHasCID (ArrayList<DataCallState> states, int cid) { 638 for (int i = 0, s = states.size() ; i < s ; i++) { 639 if (states.get(i).cid == cid) return true; 640 } 641 642 return false; 643 } 644 645 private boolean 646 pdpStatesHasActiveCID (ArrayList<DataCallState> states, int cid) { 647 for (int i = 0, s = states.size() ; i < s ; i++) { 648 if ((states.get(i).cid == cid) && (states.get(i).active != 0)) { 649 return true; 650 } 651 } 652 653 return false; 654 } 655 656 /** 657 * Handles changes to the APN database. 658 */ 659 private void onApnChanged() { 660 boolean isConnected; 661 662 isConnected = (state != State.IDLE && state != State.FAILED); 663 664 // The "current" may no longer be valid. MMS depends on this to send properly. 665 mGsmPhone.updateCurrentCarrierInProvider(); 666 667 // TODO: It'd be nice to only do this if the changed entrie(s) 668 // match the current operator. 669 createAllApnList(); 670 if (state != State.DISCONNECTING) { 671 cleanUpConnection(isConnected, Phone.REASON_APN_CHANGED); 672 if (!isConnected) { 673 // reset reconnect timer 674 mRetryMgr.resetRetryCount(); 675 mReregisterOnReconnectFailure = false; 676 trySetupData(Phone.REASON_APN_CHANGED); 677 } 678 } 679 } 680 681 /** 682 * @param explicitPoll if true, indicates that *we* polled for this 683 * update while state == CONNECTED rather than having it delivered 684 * via an unsolicited response (which could have happened at any 685 * previous state 686 */ 687 protected void onPdpStateChanged (AsyncResult ar, boolean explicitPoll) { 688 ArrayList<DataCallState> pdpStates; 689 690 pdpStates = (ArrayList<DataCallState>)(ar.result); 691 692 if (ar.exception != null) { 693 // This is probably "radio not available" or something 694 // of that sort. If so, the whole connection is going 695 // to come down soon anyway 696 return; 697 } 698 699 if (state == State.CONNECTED) { 700 // The way things are supposed to work, the PDP list 701 // should not contain the CID after it disconnects. 702 // However, the way things really work, sometimes the PDP 703 // context is still listed with active = false, which 704 // makes it hard to distinguish an activating context from 705 // an activated-and-then deactivated one. 706 if (!pdpStatesHasCID(pdpStates, cidActive)) { 707 // It looks like the PDP context has deactivated. 708 // Tear everything down and try to reconnect. 709 710 Log.i(LOG_TAG, "PDP connection has dropped. Reconnecting"); 711 712 // Add an event log when the network drops PDP 713 int cid = -1; 714 GsmCellLocation loc = ((GsmCellLocation)phone.getCellLocation()); 715 if (loc != null) cid = loc.getCid(); 716 EventLog.List val = new EventLog.List(cid, 717 TelephonyManager.getDefault().getNetworkType()); 718 EventLog.writeEvent(TelephonyEventLog.EVENT_LOG_PDP_NETWORK_DROP, val); 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 int cid = -1; 737 GsmCellLocation loc = ((GsmCellLocation)phone.getCellLocation()); 738 if (loc != null) cid = loc.getCid(); 739 EventLog.List val = new EventLog.List(cid, 740 TelephonyManager.getDefault().getNetworkType()); 741 EventLog.writeEvent(TelephonyEventLog.EVENT_LOG_PDP_NETWORK_DROP, val); 742 743 cleanUpConnection(true, null); 744 } 745 } 746 } 747 } 748 749 private void notifyDefaultData(String reason) { 750 setState(State.CONNECTED); 751 phone.notifyDataConnection(reason); 752 startNetStatPoll(); 753 // reset reconnect timer 754 mRetryMgr.resetRetryCount(); 755 mReregisterOnReconnectFailure = false; 756 } 757 758 /** 759 * This is a kludge to deal with the fact that 760 * the PDP state change notification doesn't always work 761 * with certain RIL impl's/basebands 762 * 763 */ 764 private void startPeriodicPdpPoll() { 765 removeMessages(EVENT_POLL_PDP); 766 767 sendMessageDelayed(obtainMessage(EVENT_POLL_PDP), POLL_PDP_MILLIS); 768 } 769 770 private void resetPollStats() { 771 txPkts = -1; 772 rxPkts = -1; 773 sentSinceLastRecv = 0; 774 netStatPollPeriod = POLL_NETSTAT_MILLIS; 775 mNoRecvPollCount = 0; 776 } 777 778 private void doRecovery() { 779 if (state == State.CONNECTED) { 780 int maxPdpReset = Settings.Gservices.getInt(mResolver, 781 Settings.Gservices.PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT, 782 DEFAULT_MAX_PDP_RESET_FAIL); 783 if (mPdpResetCount < maxPdpReset) { 784 mPdpResetCount++; 785 EventLog.writeEvent(TelephonyEventLog.EVENT_LOG_PDP_RESET, sentSinceLastRecv); 786 cleanUpConnection(true, Phone.REASON_PDP_RESET); 787 } else { 788 mPdpResetCount = 0; 789 EventLog.writeEvent(TelephonyEventLog.EVENT_LOG_REREGISTER_NETWORK, sentSinceLastRecv); 790 mGsmPhone.mSST.reRegisterNetwork(null); 791 } 792 // TODO: Add increasingly drastic recovery steps, eg, 793 // reset the radio, reset the device. 794 } 795 } 796 797 protected void startNetStatPoll() { 798 if (state == State.CONNECTED && mPingTestActive == false && netStatPollEnabled == false) { 799 Log.d(LOG_TAG, "[DataConnection] Start poll NetStat"); 800 resetPollStats(); 801 netStatPollEnabled = true; 802 mPollNetStat.run(); 803 } 804 } 805 806 protected void stopNetStatPoll() { 807 netStatPollEnabled = false; 808 removeCallbacks(mPollNetStat); 809 Log.d(LOG_TAG, "[DataConnection] Stop poll NetStat"); 810 } 811 812 protected void restartRadio() { 813 Log.d(LOG_TAG, "************TURN OFF RADIO**************"); 814 cleanUpConnection(true, Phone.REASON_RADIO_TURNED_OFF); 815 phone.mCM.setRadioPower(false, null); 816 /* Note: no need to call setRadioPower(true). Assuming the desired 817 * radio power state is still ON (as tracked by ServiceStateTracker), 818 * ServiceStateTracker will call setRadioPower when it receives the 819 * RADIO_STATE_CHANGED notification for the power off. And if the 820 * desired power state has changed in the interim, we don't want to 821 * override it with an unconditional power on. 822 */ 823 824 int reset = Integer.parseInt(SystemProperties.get("net.ppp.reset-by-timeout", "0")); 825 SystemProperties.set("net.ppp.reset-by-timeout", String.valueOf(reset+1)); 826 } 827 828 private Runnable mPollNetStat = new Runnable() 829 { 830 831 public void run() { 832 long sent, received; 833 long preTxPkts = -1, preRxPkts = -1; 834 835 Activity newActivity; 836 837 preTxPkts = txPkts; 838 preRxPkts = rxPkts; 839 840 try { 841 txPkts = netstat.getMobileTxPackets(); 842 rxPkts = netstat.getMobileRxPackets(); 843 } catch (RemoteException e) { 844 txPkts = 0; 845 rxPkts = 0; 846 } 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.Gservices.getInt(mResolver, 883 Settings.Gservices.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(TelephonyEventLog.EVENT_LOG_RADIO_RESET_COUNTDOWN_TRIGGERED, 890 sentSinceLastRecv); 891 } 892 893 int noRecvPollLimit = Settings.Gservices.getInt(mResolver, 894 Settings.Gservices.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.Gservices.getInt(mResolver, 906 Settings.Gservices.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.Gservices.getInt(mResolver, 926 Settings.Gservices.PDP_WATCHDOG_POLL_INTERVAL_MS, POLL_NETSTAT_MILLIS); 927 } else { 928 netStatPollPeriod = Settings.Gservices.getInt(mResolver, 929 Settings.Gservices.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.Gservices.getString(mResolver, 944 Settings.Gservices.PDP_WATCHDOG_PING_ADDRESS); 945 int deadline = Settings.Gservices.getInt(mResolver, 946 Settings.Gservices.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(TelephonyEventLog.EVENT_LOG_PDP_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, "PREFERED 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 int cid = -1; 1152 GsmCellLocation loc = ((GsmCellLocation)phone.getCellLocation()); 1153 if (loc != null) cid = loc.getCid(); 1154 1155 EventLog.List val = new EventLog.List( 1156 cause.ordinal(), cid, 1157 TelephonyManager.getDefault().getNetworkType()); 1158 EventLog.writeEvent(TelephonyEventLog.EVENT_LOG_RADIO_PDP_SETUP_FAIL, val); 1159 } 1160 1161 // No try for permanent failure 1162 if (cause.isPermanentFail()) { 1163 notifyNoData(cause); 1164 if (!mRequestedApnType.equals(Phone.APN_TYPE_DEFAULT)) { 1165 phone.notifyDataConnection(Phone.REASON_APN_FAILED); 1166 onEnableApn(apnTypeToId(mRequestedApnType), DISABLED); 1167 } 1168 return; 1169 } 1170 1171 waitingApns.remove(0); 1172 if (waitingApns.isEmpty()) { 1173 // No more to try, start delayed retry 1174 startDelayedRetry(cause, reason); 1175 } else { 1176 // we still have more apns to try 1177 setState(State.SCANNING); 1178 // Wait a bit before trying the next APN, so that 1179 // we're not tying up the RIL command channel 1180 sendMessageDelayed(obtainMessage(EVENT_TRY_SETUP_DATA, reason), APN_DELAY_MILLIS); 1181 } 1182 } 1183 } 1184 1185 protected void onDisconnectDone(AsyncResult ar) { 1186 String reason = null; 1187 if(DBG) log("EVENT_DISCONNECT_DONE"); 1188 if (ar.userObj instanceof String) { 1189 reason = (String) ar.userObj; 1190 } 1191 setState(State.IDLE); 1192 phone.notifyDataConnection(reason); 1193 mActiveApn = null; 1194 if (retryAfterDisconnected(reason)) { 1195 trySetupData(reason); 1196 } 1197 } 1198 1199 protected void onPollPdp() { 1200 if (state == State.CONNECTED) { 1201 // only poll when connected 1202 phone.mCM.getPDPContextList(this.obtainMessage(EVENT_GET_PDP_LIST_COMPLETE)); 1203 sendMessageDelayed(obtainMessage(EVENT_POLL_PDP), POLL_PDP_MILLIS); 1204 } 1205 } 1206 1207 protected void onVoiceCallStarted() { 1208 if (state == State.CONNECTED && ! mGsmPhone.mSST.isConcurrentVoiceAndData()) { 1209 stopNetStatPoll(); 1210 phone.notifyDataConnection(Phone.REASON_VOICE_CALL_STARTED); 1211 } 1212 } 1213 1214 protected void onVoiceCallEnded() { 1215 if (state == State.CONNECTED) { 1216 if (!mGsmPhone.mSST.isConcurrentVoiceAndData()) { 1217 startNetStatPoll(); 1218 phone.notifyDataConnection(Phone.REASON_VOICE_CALL_ENDED); 1219 } else { 1220 // clean slate after call end. 1221 resetPollStats(); 1222 } 1223 } else { 1224 // reset reconnect timer 1225 mRetryMgr.resetRetryCount(); 1226 mReregisterOnReconnectFailure = false; 1227 // in case data setup was attempted when we were on a voice call 1228 trySetupData(Phone.REASON_VOICE_CALL_ENDED); 1229 } 1230 } 1231 1232 protected void onCleanUpConnection(boolean tearDown, String reason) { 1233 cleanUpConnection(tearDown, reason); 1234 } 1235 1236 /** 1237 * Based on the sim operator numeric, create a list for all possible pdps 1238 * with all apns associated with that pdp 1239 * 1240 * 1241 */ 1242 private void createAllApnList() { 1243 allApns = new ArrayList<ApnSetting>(); 1244 String operator = mGsmPhone.mSIMRecords.getSIMOperatorNumeric(); 1245 1246 if (operator != null) { 1247 String selection = "numeric = '" + operator + "'"; 1248 1249 Cursor cursor = phone.getContext().getContentResolver().query( 1250 Telephony.Carriers.CONTENT_URI, null, selection, null, null); 1251 1252 if (cursor != null) { 1253 if (cursor.getCount() > 0) { 1254 allApns = createApnList(cursor); 1255 // TODO: Figure out where this fits in. This basically just 1256 // writes the pap-secrets file. No longer tied to GsmDataConnection 1257 // object. Not used on current platform (no ppp). 1258 //GsmDataConnection pdp = pdpList.get(pdp_name); 1259 //if (pdp != null && pdp.dataLink != null) { 1260 // pdp.dataLink.setPasswordInfo(cursor); 1261 //} 1262 } 1263 cursor.close(); 1264 } 1265 } 1266 1267 if (allApns.isEmpty()) { 1268 if (DBG) log("No APN found for carrier: " + operator); 1269 preferredApn = null; 1270 notifyNoData(GsmDataConnection.FailCause.MISSING_UKNOWN_APN); 1271 } else { 1272 preferredApn = getPreferredApn(); 1273 Log.d(LOG_TAG, "Get PreferredAPN"); 1274 if (preferredApn != null && !preferredApn.numeric.equals(operator)) { 1275 preferredApn = null; 1276 setPreferredApn(-1); 1277 } 1278 } 1279 } 1280 1281 private void createAllPdpList() { 1282 pdpList = new ArrayList<DataConnection>(); 1283 DataConnection pdp; 1284 1285 for (int i = 0; i < PDP_CONNECTION_POOL_SIZE; i++) { 1286 pdp = GsmDataConnection.makeDataConnection(mGsmPhone); 1287 pdpList.add(pdp); 1288 } 1289 } 1290 1291 private void destroyAllPdpList() { 1292 if(pdpList != null) { 1293 GsmDataConnection pdp; 1294 pdpList.removeAll(pdpList); 1295 } 1296 } 1297 1298 /** 1299 * 1300 * @return waitingApns list to be used to create PDP 1301 * error when waitingApns.isEmpty() 1302 */ 1303 private ArrayList<ApnSetting> buildWaitingApns() { 1304 ArrayList<ApnSetting> apnList = new ArrayList<ApnSetting>(); 1305 String operator = mGsmPhone.mSIMRecords.getSIMOperatorNumeric(); 1306 1307 if (mRequestedApnType.equals(Phone.APN_TYPE_DEFAULT)) { 1308 if (canSetPreferApn && preferredApn != null) { 1309 Log.i(LOG_TAG, "Preferred APN:" + operator + ":" 1310 + preferredApn.numeric + ":" + preferredApn); 1311 if (preferredApn.numeric.equals(operator)) { 1312 Log.i(LOG_TAG, "Waiting APN set to preferred APN"); 1313 apnList.add(preferredApn); 1314 return apnList; 1315 } else { 1316 setPreferredApn(-1); 1317 preferredApn = null; 1318 } 1319 } 1320 } 1321 1322 if (allApns != null) { 1323 for (ApnSetting apn : allApns) { 1324 if (apn.canHandleType(mRequestedApnType)) { 1325 apnList.add(apn); 1326 } 1327 } 1328 } 1329 return apnList; 1330 } 1331 1332 /** 1333 * Get next apn in waitingApns 1334 * @return the first apn found in waitingApns, null if none 1335 */ 1336 private ApnSetting getNextApn() { 1337 ArrayList<ApnSetting> list = waitingApns; 1338 ApnSetting apn = null; 1339 1340 if (list != null) { 1341 if (!list.isEmpty()) { 1342 apn = list.get(0); 1343 } 1344 } 1345 return apn; 1346 } 1347 1348 private String apnListToString (ArrayList<ApnSetting> apns) { 1349 StringBuilder result = new StringBuilder(); 1350 for (int i = 0, size = apns.size(); i < size; i++) { 1351 result.append('[') 1352 .append(apns.get(i).toString()) 1353 .append(']'); 1354 } 1355 return result.toString(); 1356 } 1357 1358 private void startDelayedRetry(GsmDataConnection.FailCause cause, String reason) { 1359 notifyNoData(cause); 1360 reconnectAfterFail(cause, reason); 1361 } 1362 1363 private void setPreferredApn(int pos) { 1364 if (!canSetPreferApn) { 1365 return; 1366 } 1367 1368 ContentResolver resolver = phone.getContext().getContentResolver(); 1369 resolver.delete(PREFERAPN_URI, null, null); 1370 1371 if (pos >= 0) { 1372 ContentValues values = new ContentValues(); 1373 values.put(APN_ID, pos); 1374 resolver.insert(PREFERAPN_URI, values); 1375 } 1376 } 1377 1378 private ApnSetting getPreferredApn() { 1379 if (allApns.isEmpty()) { 1380 return null; 1381 } 1382 1383 Cursor cursor = phone.getContext().getContentResolver().query( 1384 PREFERAPN_URI, new String[] { "_id", "name", "apn" }, 1385 null, null, Telephony.Carriers.DEFAULT_SORT_ORDER); 1386 1387 if (cursor != null) { 1388 canSetPreferApn = true; 1389 } else { 1390 canSetPreferApn = false; 1391 } 1392 1393 if (canSetPreferApn && cursor.getCount() > 0) { 1394 int pos; 1395 cursor.moveToFirst(); 1396 pos = cursor.getInt(cursor.getColumnIndexOrThrow(Telephony.Carriers._ID)); 1397 for(ApnSetting p:allApns) { 1398 if (p.id == pos && p.canHandleType(mRequestedApnType)) { 1399 cursor.close(); 1400 return p; 1401 } 1402 } 1403 } 1404 1405 if (cursor != null) { 1406 cursor.close(); 1407 } 1408 1409 return null; 1410 } 1411 1412 public void handleMessage (Message msg) { 1413 if (DBG) Log.d(LOG_TAG,"GSMDataConnTrack handleMessage "+msg); 1414 1415 if (!mGsmPhone.mIsTheCurrentActivePhone) { 1416 Log.d(LOG_TAG, "Ignore GSM msgs since GSM phone is inactive"); 1417 return; 1418 } 1419 1420 switch (msg.what) { 1421 case EVENT_RECORDS_LOADED: 1422 onRecordsLoaded(); 1423 break; 1424 1425 case EVENT_GPRS_DETACHED: 1426 onGprsDetached(); 1427 break; 1428 1429 case EVENT_GPRS_ATTACHED: 1430 onGprsAttached(); 1431 break; 1432 1433 case EVENT_DATA_STATE_CHANGED: 1434 onPdpStateChanged((AsyncResult) msg.obj, false); 1435 break; 1436 1437 case EVENT_GET_PDP_LIST_COMPLETE: 1438 onPdpStateChanged((AsyncResult) msg.obj, true); 1439 break; 1440 1441 case EVENT_POLL_PDP: 1442 onPollPdp(); 1443 break; 1444 1445 case EVENT_START_NETSTAT_POLL: 1446 mPingTestActive = false; 1447 startNetStatPoll(); 1448 break; 1449 1450 case EVENT_START_RECOVERY: 1451 mPingTestActive = false; 1452 doRecovery(); 1453 break; 1454 1455 case EVENT_APN_CHANGED: 1456 onApnChanged(); 1457 break; 1458 1459 case EVENT_PS_RESTRICT_ENABLED: 1460 /** 1461 * We don't need to explicitly to tear down the PDP context 1462 * when PS restricted is enabled. The base band will deactive 1463 * PDP context and notify us with PDP_CONTEXT_CHANGED. 1464 * But we should stop the network polling and prevent reset PDP. 1465 */ 1466 Log.d(LOG_TAG, "[DSAC DEB] " + "EVENT_PS_RESTRICT_ENABLED " + mIsPsRestricted); 1467 stopNetStatPoll(); 1468 mIsPsRestricted = true; 1469 break; 1470 1471 case EVENT_PS_RESTRICT_DISABLED: 1472 /** 1473 * When PS restrict is removed, we need setup PDP connection if 1474 * PDP connection is down. 1475 */ 1476 Log.d(LOG_TAG, "[DSAC DEB] " + "EVENT_PS_RESTRICT_DISABLED " + mIsPsRestricted); 1477 mIsPsRestricted = false; 1478 if (state == State.CONNECTED) { 1479 startNetStatPoll(); 1480 } else { 1481 if (state == State.FAILED) { 1482 cleanUpConnection(false, Phone.REASON_PS_RESTRICT_ENABLED); 1483 mRetryMgr.resetRetryCount(); 1484 mReregisterOnReconnectFailure = false; 1485 } 1486 trySetupData(Phone.REASON_PS_RESTRICT_ENABLED); 1487 } 1488 break; 1489 1490 default: 1491 // handle the message in the super class DataConnectionTracker 1492 super.handleMessage(msg); 1493 break; 1494 } 1495 } 1496 1497 protected void log(String s) { 1498 Log.d(LOG_TAG, "[GsmDataConnectionTracker] " + s); 1499 } 1500 1501} 1502