DcTrackerBase.java revision 4b09dff383ae7dfca595aeeea886a594a1947340 
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.dataconnection;
18
19import android.app.AlarmManager;
20import android.app.PendingIntent;
21import android.content.BroadcastReceiver;
22import android.content.ContentResolver;
23import android.content.Context;
24import android.content.Intent;
25import android.content.IntentFilter;
26import android.content.res.Resources;
27import android.content.SharedPreferences;
28import android.database.ContentObserver;
29import android.net.ConnectivityManager;
30import android.net.LinkProperties;
31import android.net.NetworkCapabilities;
32import android.net.NetworkInfo;
33import android.net.TrafficStats;
34import android.net.wifi.WifiManager;
35import android.os.AsyncResult;
36import android.os.Build;
37import android.os.Bundle;
38import android.os.Handler;
39import android.os.HandlerThread;
40import android.os.Message;
41import android.os.Messenger;
42import android.os.SystemClock;
43import android.os.SystemProperties;
44import android.preference.PreferenceManager;
45import android.provider.Settings;
46import android.provider.Settings.SettingNotFoundException;
47import android.telephony.SubscriptionManager;
48import android.telephony.TelephonyManager;
49import android.text.TextUtils;
50import android.util.EventLog;
51import android.telephony.Rlog;
52import android.telephony.ServiceState;
53
54import com.android.internal.R;
55import com.android.internal.telephony.DctConstants;
56import com.android.internal.telephony.DctConstants.State;
57import com.android.internal.telephony.EventLogTags;
58import com.android.internal.telephony.TelephonyIntents;
59import com.android.internal.telephony.Phone;
60import com.android.internal.telephony.PhoneBase;
61import com.android.internal.telephony.PhoneConstants;
62import com.android.internal.telephony.uicc.IccRecords;
63import com.android.internal.telephony.uicc.UiccController;
64import com.android.internal.util.AsyncChannel;
65import com.android.internal.util.ArrayUtils;
66
67import java.io.FileDescriptor;
68import java.io.PrintWriter;
69import java.util.ArrayList;
70import java.util.Comparator;
71import java.util.HashMap;
72import java.util.List;
73import java.util.Map.Entry;
74import java.util.Set;
75import java.util.concurrent.ConcurrentHashMap;
76import java.util.concurrent.atomic.AtomicInteger;
77import java.util.concurrent.atomic.AtomicReference;
78import java.util.PriorityQueue;
79
80/**
81 * {@hide}
82 */
83public abstract class DcTrackerBase extends Handler {
84    protected static final boolean DBG = true;
85    protected static final boolean VDBG = false; // STOPSHIP if true
86    protected static final boolean VDBG_STALL = true; // STOPSHIP if true
87    protected static final boolean RADIO_TESTS = false;
88
89    static boolean mIsCleanupRequired = false;
90    /**
91     * Constants for the data connection activity:
92     * physical link down/up
93     */
94    protected static final int DATA_CONNECTION_ACTIVE_PH_LINK_INACTIVE = 0;
95    protected static final int DATA_CONNECTION_ACTIVE_PH_LINK_DOWN = 1;
96    protected static final int DATA_CONNECTION_ACTIVE_PH_LINK_UP = 2;
97
98    /** Delay between APN attempts.
99        Note the property override mechanism is there just for testing purpose only. */
100    protected static final int APN_DELAY_DEFAULT_MILLIS = 20000;
101
102    /** Delay between APN attempts when in fail fast mode */
103    protected static final int APN_FAIL_FAST_DELAY_DEFAULT_MILLIS = 3000;
104
105    AlarmManager mAlarmManager;
106
107    protected Object mDataEnabledLock = new Object();
108
109    // responds to the setInternalDataEnabled call - used internally to turn off data
110    // for example during emergency calls
111    protected boolean mInternalDataEnabled = true;
112
113    // responds to public (user) API to enable/disable data use
114    // independent of mInternalDataEnabled and requests for APN access
115    // persisted
116    protected boolean mUserDataEnabled = true;
117
118    // TODO: move away from static state once 5587429 is fixed.
119    protected static boolean sPolicyDataEnabled = true;
120
121    private boolean[] mDataEnabled = new boolean[DctConstants.APN_NUM_TYPES];
122
123    private int mEnabledCount = 0;
124
125    /* Currently requested APN type (TODO: This should probably be a parameter not a member) */
126    protected String mRequestedApnType = PhoneConstants.APN_TYPE_DEFAULT;
127
128    /** Retry configuration: A doubling of retry times from 5secs to 30minutes */
129    protected static final String DEFAULT_DATA_RETRY_CONFIG = "default_randomization=2000,"
130        + "5000,10000,20000,40000,80000:5000,160000:5000,"
131        + "320000:5000,640000:5000,1280000:5000,1800000:5000";
132
133    /** Retry configuration for secondary networks: 4 tries in 20 sec */
134    protected static final String SECONDARY_DATA_RETRY_CONFIG =
135            "max_retries=3, 5000, 5000, 5000";
136
137    /** Slow poll when attempting connection recovery. */
138    protected static final int POLL_NETSTAT_SLOW_MILLIS = 5000;
139    /** Default max failure count before attempting to network re-registration. */
140    protected static final int DEFAULT_MAX_PDP_RESET_FAIL = 3;
141
142    /**
143     * After detecting a potential connection problem, this is the max number
144     * of subsequent polls before attempting recovery.
145     */
146    protected static final int NO_RECV_POLL_LIMIT = 24;
147    // 1 sec. default polling interval when screen is on.
148    protected static final int POLL_NETSTAT_MILLIS = 1000;
149    // 10 min. default polling interval when screen is off.
150    protected static final int POLL_NETSTAT_SCREEN_OFF_MILLIS = 1000*60*10;
151    // 2 min for round trip time
152    protected static final int POLL_LONGEST_RTT = 120 * 1000;
153    // Default sent packets without ack which triggers initial recovery steps
154    protected static final int NUMBER_SENT_PACKETS_OF_HANG = 10;
155    // how long to wait before switching back to default APN
156    protected static final int RESTORE_DEFAULT_APN_DELAY = 1 * 60 * 1000;
157    // system property that can override the above value
158    protected static final String APN_RESTORE_DELAY_PROP_NAME = "android.telephony.apn-restore";
159    // represents an invalid IP address
160    protected static final String NULL_IP = "0.0.0.0";
161
162    // Default for the data stall alarm while non-aggressive stall detection
163    protected static final int DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS_DEFAULT = 1000 * 60 * 6;
164    // Default for the data stall alarm for aggressive stall detection
165    protected static final int DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS_DEFAULT = 1000 * 60;
166    // If attempt is less than this value we're doing first level recovery
167    protected static final int DATA_STALL_NO_RECV_POLL_LIMIT = 1;
168    // Tag for tracking stale alarms
169    protected static final String DATA_STALL_ALARM_TAG_EXTRA = "data.stall.alram.tag";
170
171    protected static final boolean DATA_STALL_SUSPECTED = true;
172    protected static final boolean DATA_STALL_NOT_SUSPECTED = false;
173
174    protected String RADIO_RESET_PROPERTY = "gsm.radioreset";
175
176    protected static final String INTENT_RECONNECT_ALARM =
177            "com.android.internal.telephony.data-reconnect";
178    protected static final String INTENT_RECONNECT_ALARM_EXTRA_TYPE = "reconnect_alarm_extra_type";
179    protected static final String INTENT_RECONNECT_ALARM_EXTRA_REASON =
180            "reconnect_alarm_extra_reason";
181
182    protected static final String INTENT_RESTART_TRYSETUP_ALARM =
183            "com.android.internal.telephony.data-restart-trysetup";
184    protected static final String INTENT_RESTART_TRYSETUP_ALARM_EXTRA_TYPE =
185            "restart_trysetup_alarm_extra_type";
186
187    protected static final String INTENT_DATA_STALL_ALARM =
188            "com.android.internal.telephony.data-stall";
189
190
191
192    protected static final String DEFALUT_DATA_ON_BOOT_PROP = "net.def_data_on_boot";
193
194    protected DcTesterFailBringUpAll mDcTesterFailBringUpAll;
195    protected DcController mDcc;
196
197    // member variables
198    protected PhoneBase mPhone;
199    protected UiccController mUiccController;
200    protected AtomicReference<IccRecords> mIccRecords = new AtomicReference<IccRecords>();
201    protected DctConstants.Activity mActivity = DctConstants.Activity.NONE;
202    protected DctConstants.State mState = DctConstants.State.IDLE;
203    protected Handler mDataConnectionTracker = null;
204
205    protected long mTxPkts;
206    protected long mRxPkts;
207    protected int mNetStatPollPeriod;
208    protected boolean mNetStatPollEnabled = false;
209
210    protected TxRxSum mDataStallTxRxSum = new TxRxSum(0, 0);
211    // Used to track stale data stall alarms.
212    protected int mDataStallAlarmTag = (int) SystemClock.elapsedRealtime();
213    // The current data stall alarm intent
214    protected PendingIntent mDataStallAlarmIntent = null;
215    // Number of packets sent since the last received packet
216    protected long mSentSinceLastRecv;
217    // Controls when a simple recovery attempt it to be tried
218    protected int mNoRecvPollCount = 0;
219    // Refrence counter for enabling fail fast
220    protected static int sEnableFailFastRefCounter = 0;
221    // True if data stall detection is enabled
222    protected volatile boolean mDataStallDetectionEnabled = true;
223
224    protected volatile boolean mFailFast = false;
225
226    // True when in voice call
227    protected boolean mInVoiceCall = false;
228
229    // wifi connection status will be updated by sticky intent
230    protected boolean mIsWifiConnected = false;
231
232    /** Intent sent when the reconnect alarm fires. */
233    protected PendingIntent mReconnectIntent = null;
234
235    /** CID of active data connection */
236    protected int mCidActive;
237
238    // When false we will not auto attach and manually attaching is required.
239    protected boolean mAutoAttachOnCreationConfig = false;
240    protected boolean mAutoAttachOnCreation = false;
241
242    // State of screen
243    // (TODO: Reconsider tying directly to screen, maybe this is
244    //        really a lower power mode")
245    protected boolean mIsScreenOn = true;
246
247    /** Allows the generation of unique Id's for DataConnection objects */
248    protected AtomicInteger mUniqueIdGenerator = new AtomicInteger(0);
249
250    /** The data connections. */
251    protected HashMap<Integer, DataConnection> mDataConnections =
252        new HashMap<Integer, DataConnection>();
253
254    /** The data connection async channels */
255    protected HashMap<Integer, DcAsyncChannel> mDataConnectionAcHashMap =
256        new HashMap<Integer, DcAsyncChannel>();
257
258    /** Convert an ApnType string to Id (TODO: Use "enumeration" instead of String for ApnType) */
259    protected HashMap<String, Integer> mApnToDataConnectionId =
260                                    new HashMap<String, Integer>();
261
262    /** Phone.APN_TYPE_* ===> ApnContext */
263    protected final ConcurrentHashMap<String, ApnContext> mApnContexts =
264                                    new ConcurrentHashMap<String, ApnContext>();
265
266    /** kept in sync with mApnContexts
267     * Higher numbers are higher priority and sorted so highest priority is first */
268    protected final PriorityQueue<ApnContext>mPrioritySortedApnContexts =
269            new PriorityQueue<ApnContext>(5,
270            new Comparator<ApnContext>() {
271                public int compare(ApnContext c1, ApnContext c2) {
272                    return c2.priority - c1.priority;
273                }
274            } );
275
276    /* Currently active APN */
277    protected ApnSetting mActiveApn;
278
279    /** allApns holds all apns */
280    protected ArrayList<ApnSetting> mAllApnSettings = null;
281
282    /** preferred apn */
283    protected ApnSetting mPreferredApn = null;
284
285    /** Is packet service restricted by network */
286    protected boolean mIsPsRestricted = false;
287
288    /** emergency apn Setting*/
289    protected ApnSetting mEmergencyApn = null;
290
291    /* Once disposed dont handle any messages */
292    protected boolean mIsDisposed = false;
293
294    protected ContentResolver mResolver;
295
296    /* Set to true with CMD_ENABLE_MOBILE_PROVISIONING */
297    protected boolean mIsProvisioning = false;
298
299    /* The Url passed as object parameter in CMD_ENABLE_MOBILE_PROVISIONING */
300    protected String mProvisioningUrl = null;
301
302    /* Intent for the provisioning apn alarm */
303    protected static final String INTENT_PROVISIONING_APN_ALARM =
304            "com.android.internal.telephony.provisioning_apn_alarm";
305
306    /* Tag for tracking stale alarms */
307    protected static final String PROVISIONING_APN_ALARM_TAG_EXTRA = "provisioning.apn.alarm.tag";
308
309    /* Debug property for overriding the PROVISIONING_APN_ALARM_DELAY_IN_MS */
310    protected static final String DEBUG_PROV_APN_ALARM =
311            "persist.debug.prov_apn_alarm";
312
313    /* Default for the provisioning apn alarm timeout */
314    protected static final int PROVISIONING_APN_ALARM_DELAY_IN_MS_DEFAULT = 1000 * 60 * 15;
315
316    /* The provision apn alarm intent used to disable the provisioning apn */
317    protected PendingIntent mProvisioningApnAlarmIntent = null;
318
319    /* Used to track stale provisioning apn alarms */
320    protected int mProvisioningApnAlarmTag = (int) SystemClock.elapsedRealtime();
321
322    protected AsyncChannel mReplyAc = new AsyncChannel();
323
324    protected BroadcastReceiver mIntentReceiver = new BroadcastReceiver ()
325    {
326        @Override
327        public void onReceive(Context context, Intent intent)
328        {
329            String action = intent.getAction();
330            if (DBG) log("onReceive: action=" + action);
331            if (action.equals(Intent.ACTION_SCREEN_ON)) {
332                mIsScreenOn = true;
333                stopNetStatPoll();
334                startNetStatPoll();
335                restartDataStallAlarm();
336            } else if (action.equals(Intent.ACTION_SCREEN_OFF)) {
337                mIsScreenOn = false;
338                stopNetStatPoll();
339                startNetStatPoll();
340                restartDataStallAlarm();
341            } else if (action.startsWith(INTENT_RECONNECT_ALARM)) {
342                if (DBG) log("Reconnect alarm. Previous state was " + mState);
343                onActionIntentReconnectAlarm(intent);
344            } else if (action.startsWith(INTENT_RESTART_TRYSETUP_ALARM)) {
345                if (DBG) log("Restart trySetup alarm");
346                onActionIntentRestartTrySetupAlarm(intent);
347            } else if (action.equals(INTENT_DATA_STALL_ALARM)) {
348                onActionIntentDataStallAlarm(intent);
349            } else if (action.equals(INTENT_PROVISIONING_APN_ALARM)) {
350                onActionIntentProvisioningApnAlarm(intent);
351            } else if (action.equals(WifiManager.NETWORK_STATE_CHANGED_ACTION)) {
352                final android.net.NetworkInfo networkInfo = (NetworkInfo)
353                        intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);
354                mIsWifiConnected = (networkInfo != null && networkInfo.isConnected());
355                if (DBG) log("NETWORK_STATE_CHANGED_ACTION: mIsWifiConnected=" + mIsWifiConnected);
356            } else if (action.equals(WifiManager.WIFI_STATE_CHANGED_ACTION)) {
357                final boolean enabled = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE,
358                        WifiManager.WIFI_STATE_UNKNOWN) == WifiManager.WIFI_STATE_ENABLED;
359
360                if (!enabled) {
361                    // when WiFi got disabled, the NETWORK_STATE_CHANGED_ACTION
362                    // quit and won't report disconnected until next enabling.
363                    mIsWifiConnected = false;
364                }
365                if (DBG) log("WIFI_STATE_CHANGED_ACTION: enabled=" + enabled
366                        + " mIsWifiConnected=" + mIsWifiConnected);
367            }
368        }
369    };
370
371    private Runnable mPollNetStat = new Runnable()
372    {
373        @Override
374        public void run() {
375            updateDataActivity();
376
377            if (mIsScreenOn) {
378                mNetStatPollPeriod = Settings.Global.getInt(mResolver,
379                        Settings.Global.PDP_WATCHDOG_POLL_INTERVAL_MS, POLL_NETSTAT_MILLIS);
380            } else {
381                mNetStatPollPeriod = Settings.Global.getInt(mResolver,
382                        Settings.Global.PDP_WATCHDOG_LONG_POLL_INTERVAL_MS,
383                        POLL_NETSTAT_SCREEN_OFF_MILLIS);
384            }
385
386            if (mNetStatPollEnabled) {
387                mDataConnectionTracker.postDelayed(this, mNetStatPollPeriod);
388            }
389        }
390    };
391
392    private class DataRoamingSettingObserver extends ContentObserver {
393
394        public DataRoamingSettingObserver(Handler handler, Context context) {
395            super(handler);
396            mResolver = context.getContentResolver();
397        }
398
399        public void register() {
400            mResolver.registerContentObserver(
401                    Settings.Global.getUriFor(Settings.Global.DATA_ROAMING), false, this);
402        }
403
404        public void unregister() {
405            mResolver.unregisterContentObserver(this);
406        }
407
408        @Override
409        public void onChange(boolean selfChange) {
410            // already running on mPhone handler thread
411            if (mPhone.getServiceState().getRoaming()) {
412                sendMessage(obtainMessage(DctConstants.EVENT_ROAMING_ON));
413            }
414        }
415    }
416    private final DataRoamingSettingObserver mDataRoamingSettingObserver;
417
418    /**
419     * The Initial MaxRetry sent to a DataConnection as a parameter
420     * to DataConnectionAc.bringUp. This value can be defined at compile
421     * time using the SystemProperty Settings.Global.DCT_INITIAL_MAX_RETRY
422     * and at runtime using gservices to change Settings.Global.DCT_INITIAL_MAX_RETRY.
423     */
424    private static final int DEFAULT_MDC_INITIAL_RETRY = 1;
425    protected int getInitialMaxRetry() {
426        if (mFailFast) {
427            return 0;
428        }
429        // Get default value from system property or use DEFAULT_MDC_INITIAL_RETRY
430        int value = SystemProperties.getInt(
431                Settings.Global.MDC_INITIAL_MAX_RETRY, DEFAULT_MDC_INITIAL_RETRY);
432
433        // Check if its been overridden
434        return Settings.Global.getInt(mResolver,
435                Settings.Global.MDC_INITIAL_MAX_RETRY, value);
436    }
437
438    /**
439     * Maintain the sum of transmit and receive packets.
440     *
441     * The packet counts are initialized and reset to -1 and
442     * remain -1 until they can be updated.
443     */
444    public class TxRxSum {
445        public long txPkts;
446        public long rxPkts;
447
448        public TxRxSum() {
449            reset();
450        }
451
452        public TxRxSum(long txPkts, long rxPkts) {
453            this.txPkts = txPkts;
454            this.rxPkts = rxPkts;
455        }
456
457        public TxRxSum(TxRxSum sum) {
458            txPkts = sum.txPkts;
459            rxPkts = sum.rxPkts;
460        }
461
462        public void reset() {
463            txPkts = -1;
464            rxPkts = -1;
465        }
466
467        @Override
468        public String toString() {
469            return "{txSum=" + txPkts + " rxSum=" + rxPkts + "}";
470        }
471
472        public void updateTxRxSum() {
473            this.txPkts = TrafficStats.getMobileTcpTxPackets();
474            this.rxPkts = TrafficStats.getMobileTcpRxPackets();
475        }
476    }
477
478    protected void onActionIntentReconnectAlarm(Intent intent) {
479        String reason = intent.getStringExtra(INTENT_RECONNECT_ALARM_EXTRA_REASON);
480        String apnType = intent.getStringExtra(INTENT_RECONNECT_ALARM_EXTRA_TYPE);
481
482        int phoneSubId = mPhone.getSubId();
483        int currSubId = intent.getIntExtra(PhoneConstants.SUBSCRIPTION_KEY,
484                SubscriptionManager.INVALID_SUBSCRIPTION_ID);
485        log("onActionIntentReconnectAlarm: currSubId = " + currSubId + " phoneSubId=" + phoneSubId);
486
487        // Stop reconnect if not current subId is not correct.
488        // FIXME STOPSHIP - phoneSubId is coming up as -1 way after boot and failing this?
489        if (!SubscriptionManager.isValidSubId(currSubId) || (currSubId != phoneSubId)) {
490            log("receive ReconnectAlarm but subId incorrect, ignore");
491            return;
492        }
493
494        ApnContext apnContext = mApnContexts.get(apnType);
495
496        if (DBG) {
497            log("onActionIntentReconnectAlarm: mState=" + mState + " reason=" + reason +
498                    " apnType=" + apnType + " apnContext=" + apnContext +
499                    " mDataConnectionAsyncChannels=" + mDataConnectionAcHashMap);
500        }
501
502        if ((apnContext != null) && (apnContext.isEnabled())) {
503            apnContext.setReason(reason);
504            DctConstants.State apnContextState = apnContext.getState();
505            if (DBG) {
506                log("onActionIntentReconnectAlarm: apnContext state=" + apnContextState);
507            }
508            if ((apnContextState == DctConstants.State.FAILED)
509                    || (apnContextState == DctConstants.State.IDLE)) {
510                if (DBG) {
511                    log("onActionIntentReconnectAlarm: state is FAILED|IDLE, disassociate");
512                }
513                DcAsyncChannel dcac = apnContext.getDcAc();
514                if (dcac != null) {
515                    dcac.tearDown(apnContext, "", null);
516                }
517                apnContext.setDataConnectionAc(null);
518                apnContext.setState(DctConstants.State.IDLE);
519            } else {
520                if (DBG) log("onActionIntentReconnectAlarm: keep associated");
521            }
522            // TODO: IF already associated should we send the EVENT_TRY_SETUP_DATA???
523            sendMessage(obtainMessage(DctConstants.EVENT_TRY_SETUP_DATA, apnContext));
524
525            apnContext.setReconnectIntent(null);
526        }
527    }
528
529    protected void onActionIntentRestartTrySetupAlarm(Intent intent) {
530        String apnType = intent.getStringExtra(INTENT_RESTART_TRYSETUP_ALARM_EXTRA_TYPE);
531        ApnContext apnContext = mApnContexts.get(apnType);
532        if (DBG) {
533            log("onActionIntentRestartTrySetupAlarm: mState=" + mState +
534                    " apnType=" + apnType + " apnContext=" + apnContext +
535                    " mDataConnectionAsyncChannels=" + mDataConnectionAcHashMap);
536        }
537        sendMessage(obtainMessage(DctConstants.EVENT_TRY_SETUP_DATA, apnContext));
538    }
539
540    protected void onActionIntentDataStallAlarm(Intent intent) {
541        if (VDBG_STALL) log("onActionIntentDataStallAlarm: action=" + intent.getAction());
542        Message msg = obtainMessage(DctConstants.EVENT_DATA_STALL_ALARM,
543                intent.getAction());
544        msg.arg1 = intent.getIntExtra(DATA_STALL_ALARM_TAG_EXTRA, 0);
545        sendMessage(msg);
546    }
547
548    ConnectivityManager mCm;
549
550    /**
551     * Default constructor
552     */
553    protected DcTrackerBase(PhoneBase phone) {
554        super();
555        mPhone = phone;
556        if (DBG) log("DCT.constructor");
557        mResolver = mPhone.getContext().getContentResolver();
558        mUiccController = UiccController.getInstance();
559        mUiccController.registerForIccChanged(this, DctConstants.EVENT_ICC_CHANGED, null);
560        mAlarmManager =
561                (AlarmManager) mPhone.getContext().getSystemService(Context.ALARM_SERVICE);
562        mCm = (ConnectivityManager) mPhone.getContext().getSystemService(
563                Context.CONNECTIVITY_SERVICE);
564
565
566        int phoneSubId = mPhone.getSubId();
567        IntentFilter filter = new IntentFilter();
568        filter.addAction(Intent.ACTION_SCREEN_ON);
569        filter.addAction(Intent.ACTION_SCREEN_OFF);
570        filter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION);
571        filter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION);
572        filter.addAction(INTENT_DATA_STALL_ALARM);
573        filter.addAction(INTENT_PROVISIONING_APN_ALARM);
574
575        mUserDataEnabled = Settings.Global.getInt(
576                mPhone.getContext().getContentResolver(), Settings.Global.MOBILE_DATA + phoneSubId,
577                1) == 1;
578
579        mPhone.getContext().registerReceiver(mIntentReceiver, filter, null, mPhone);
580
581        // This preference tells us 1) initial condition for "dataEnabled",
582        // and 2) whether the RIL will setup the baseband to auto-PS attach.
583
584        mDataEnabled[DctConstants.APN_DEFAULT_ID] =
585                SystemProperties.getBoolean(DEFALUT_DATA_ON_BOOT_PROP,true);
586        if (mDataEnabled[DctConstants.APN_DEFAULT_ID]) {
587            mEnabledCount++;
588        }
589
590        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(mPhone.getContext());
591        mAutoAttachOnCreation = sp.getBoolean(PhoneBase.DATA_DISABLED_ON_BOOT_KEY, false);
592
593        // Watch for changes to Settings.Global.DATA_ROAMING
594        mDataRoamingSettingObserver = new DataRoamingSettingObserver(mPhone, mPhone.getContext());
595        mDataRoamingSettingObserver.register();
596
597        HandlerThread dcHandlerThread = new HandlerThread("DcHandlerThread");
598        dcHandlerThread.start();
599        Handler dcHandler = new Handler(dcHandlerThread.getLooper());
600        mDcc = DcController.makeDcc(mPhone, this, dcHandler);
601        mDcTesterFailBringUpAll = new DcTesterFailBringUpAll(mPhone, dcHandler);
602    }
603
604    public void dispose() {
605        if (DBG) log("DCT.dispose");
606        for (DcAsyncChannel dcac : mDataConnectionAcHashMap.values()) {
607            dcac.disconnect();
608        }
609        mDataConnectionAcHashMap.clear();
610        mIsDisposed = true;
611        mPhone.getContext().unregisterReceiver(mIntentReceiver);
612        mUiccController.unregisterForIccChanged(this);
613        mDataRoamingSettingObserver.unregister();
614        mDcc.dispose();
615        mDcTesterFailBringUpAll.dispose();
616    }
617
618    public long getSubId() {
619        return mPhone.getSubId();
620    }
621
622    public DctConstants.Activity getActivity() {
623        return mActivity;
624    }
625
626    void setActivity(DctConstants.Activity activity) {
627        log("setActivity = " + activity);
628        mActivity = activity;
629        mPhone.notifyDataActivity();
630    }
631
632    public void incApnRefCount(String name) {
633
634    }
635
636    public void decApnRefCount(String name) {
637
638    }
639
640    public boolean isApnSupported(String name) {
641        return false;
642    }
643
644    public int getApnPriority(String name) {
645        return -1;
646    }
647
648
649    public boolean isApnTypeActive(String type) {
650        // TODO: support simultaneous with List instead
651        if (PhoneConstants.APN_TYPE_DUN.equals(type)) {
652            ApnSetting dunApn = fetchDunApn();
653            if (dunApn != null) {
654                return ((mActiveApn != null) && (dunApn.toString().equals(mActiveApn.toString())));
655            }
656        }
657        return mActiveApn != null && mActiveApn.canHandleType(type);
658    }
659
660    protected ApnSetting fetchDunApn() {
661        if (SystemProperties.getBoolean("net.tethering.noprovisioning", false)) {
662            log("fetchDunApn: net.tethering.noprovisioning=true ret: null");
663            return null;
664        }
665        int bearer = -1;
666        ApnSetting retDunSetting = null;
667        Context c = mPhone.getContext();
668        String apnData = Settings.Global.getString(c.getContentResolver(),
669                Settings.Global.TETHER_DUN_APN);
670        List<ApnSetting> dunSettings = ApnSetting.arrayFromString(apnData);
671        IccRecords r = mIccRecords.get();
672        for (ApnSetting dunSetting : dunSettings) {
673            String operator = (r != null) ? r.getOperatorNumeric() : "";
674            if (dunSetting.bearer != 0) {
675                if (bearer == -1) bearer = mPhone.getServiceState().getRilDataRadioTechnology();
676                if (dunSetting.bearer != bearer) continue;
677            }
678            if (dunSetting.numeric.equals(operator)) {
679                if (dunSetting.hasMvnoParams()) {
680                    if (r != null &&
681                            mvnoMatches(r, dunSetting.mvnoType, dunSetting.mvnoMatchData)) {
682                        if (VDBG) {
683                            log("fetchDunApn: global TETHER_DUN_APN dunSetting=" + dunSetting);
684                        }
685                        return dunSetting;
686                    }
687                } else {
688                    if (VDBG) log("fetchDunApn: global TETHER_DUN_APN dunSetting=" + dunSetting);
689                    return dunSetting;
690                }
691            }
692        }
693
694        String[] apnArrayData = c.getResources().getStringArray(R.array.config_tether_apndata);
695        for (String apn : apnArrayData) {
696            ApnSetting dunSetting = ApnSetting.fromString(apn);
697            if (dunSetting != null) {
698                if (dunSetting.bearer != 0) {
699                    if (bearer == -1) bearer = mPhone.getServiceState().getRilDataRadioTechnology();
700                    if (dunSetting.bearer != bearer) continue;
701                }
702                if (dunSetting.hasMvnoParams()) {
703                    if (r != null &&
704                            mvnoMatches(r, dunSetting.mvnoType, dunSetting.mvnoMatchData)) {
705                        if (VDBG) log("fetchDunApn: config_tether_apndata mvno dunSetting="
706                                + dunSetting);
707                        return dunSetting;
708                    }
709                } else {
710                    retDunSetting = dunSetting;
711                }
712            }
713        }
714
715        if (VDBG) log("fetchDunApn: config_tether_apndata dunSetting=" + retDunSetting);
716        return retDunSetting;
717    }
718
719    public String[] getActiveApnTypes() {
720        String[] result;
721        if (mActiveApn != null) {
722            result = mActiveApn.types;
723        } else {
724            result = new String[1];
725            result[0] = PhoneConstants.APN_TYPE_DEFAULT;
726        }
727        return result;
728    }
729
730    /** TODO: See if we can remove */
731    public String getActiveApnString(String apnType) {
732        String result = null;
733        if (mActiveApn != null) {
734            result = mActiveApn.apn;
735        }
736        return result;
737    }
738
739    /**
740     * Modify {@link android.provider.Settings.Global#DATA_ROAMING} value.
741     */
742    public void setDataOnRoamingEnabled(boolean enabled) {
743        if (getDataOnRoamingEnabled() != enabled) {
744            final ContentResolver resolver = mPhone.getContext().getContentResolver();
745            final int phoneSubId = mPhone.getSubId();
746            Settings.Global.putInt(resolver, Settings.Global.DATA_ROAMING + phoneSubId, enabled ? 1 : 0);
747            // will trigger handleDataOnRoamingChange() through observer
748        }
749    }
750
751    /**
752     * Return current {@link android.provider.Settings.Global#DATA_ROAMING} value.
753     */
754    public boolean getDataOnRoamingEnabled() {
755        try {
756            final ContentResolver resolver = mPhone.getContext().getContentResolver();
757            final int phoneSubId = mPhone.getSubId();
758            return Settings.Global.getInt(resolver, Settings.Global.DATA_ROAMING + phoneSubId) != 0;
759        } catch (SettingNotFoundException snfe) {
760            return false;
761        }
762    }
763
764    /**
765     * Modify {@link android.provider.Settings.Global#MOBILE_DATA} value.
766     */
767    public void setDataEnabled(boolean enable) {
768        Message msg = obtainMessage(DctConstants.CMD_SET_USER_DATA_ENABLE);
769        msg.arg1 = enable ? 1 : 0;
770        sendMessage(msg);
771    }
772
773    /**
774     * Return current {@link android.provider.Settings.Global#MOBILE_DATA} value.
775     */
776    public boolean getDataEnabled() {
777        try {
778            final ContentResolver resolver = mPhone.getContext().getContentResolver();
779            int phoneSubId = mPhone.getSubId();
780            return Settings.Global.getInt(resolver, Settings.Global.MOBILE_DATA + phoneSubId) != 0;
781        } catch (SettingNotFoundException snfe) {
782            return false;
783        }
784    }
785
786    // abstract methods
787    protected abstract void restartRadio();
788    protected abstract void log(String s);
789    protected abstract void loge(String s);
790    protected abstract boolean isDataAllowed();
791    protected abstract boolean isApnTypeAvailable(String type);
792    public    abstract DctConstants.State getState(String apnType);
793    protected abstract boolean isProvisioningApn(String apnType);
794    protected abstract void setState(DctConstants.State s);
795    protected abstract void gotoIdleAndNotifyDataConnection(String reason);
796
797    protected abstract boolean onTrySetupData(String reason);
798    protected abstract void onRoamingOff();
799    protected abstract void onRoamingOn();
800    protected abstract void onRadioAvailable();
801    protected abstract void onRadioOffOrNotAvailable();
802    protected abstract void onDataSetupComplete(AsyncResult ar);
803    protected abstract void onDataSetupCompleteError(AsyncResult ar);
804    protected abstract void onDisconnectDone(int connId, AsyncResult ar);
805    protected abstract void onDisconnectDcRetrying(int connId, AsyncResult ar);
806    protected abstract void onVoiceCallStarted();
807    protected abstract void onVoiceCallEnded();
808    protected abstract void onCleanUpConnection(boolean tearDown, int apnId, String reason);
809    protected abstract void onCleanUpAllConnections(String cause);
810    public abstract boolean isDataPossible(String apnType);
811    protected abstract void onUpdateIcc();
812    protected abstract void completeConnection(ApnContext apnContext);
813    public abstract void setDataAllowed(boolean enable, Message response);
814    public abstract String[] getPcscfAddress(String apnType);
815    public abstract void setImsRegistrationState(boolean registered);
816    protected abstract boolean mvnoMatches(IccRecords r, String mvno_type, String mvno_match_data);
817    protected abstract boolean isPermanentFail(DcFailCause dcFailCause);
818
819    @Override
820    public void handleMessage(Message msg) {
821        switch (msg.what) {
822            case AsyncChannel.CMD_CHANNEL_DISCONNECTED: {
823                log("DISCONNECTED_CONNECTED: msg=" + msg);
824                DcAsyncChannel dcac = (DcAsyncChannel) msg.obj;
825                mDataConnectionAcHashMap.remove(dcac.getDataConnectionIdSync());
826                dcac.disconnected();
827                break;
828            }
829            case DctConstants.EVENT_ENABLE_NEW_APN:
830                onEnableApn(msg.arg1, msg.arg2);
831                break;
832
833            case DctConstants.EVENT_TRY_SETUP_DATA:
834                String reason = null;
835                if (msg.obj instanceof String) {
836                    reason = (String) msg.obj;
837                }
838                onTrySetupData(reason);
839                break;
840
841            case DctConstants.EVENT_DATA_STALL_ALARM:
842                onDataStallAlarm(msg.arg1);
843                break;
844
845            case DctConstants.EVENT_ROAMING_OFF:
846                onRoamingOff();
847                break;
848
849            case DctConstants.EVENT_ROAMING_ON:
850                onRoamingOn();
851                break;
852
853            case DctConstants.EVENT_RADIO_AVAILABLE:
854                onRadioAvailable();
855                break;
856
857            case DctConstants.EVENT_RADIO_OFF_OR_NOT_AVAILABLE:
858                onRadioOffOrNotAvailable();
859                break;
860
861            case DctConstants.EVENT_DATA_SETUP_COMPLETE:
862                mCidActive = msg.arg1;
863                onDataSetupComplete((AsyncResult) msg.obj);
864                break;
865
866            case DctConstants.EVENT_DATA_SETUP_COMPLETE_ERROR:
867                onDataSetupCompleteError((AsyncResult) msg.obj);
868                break;
869
870            case DctConstants.EVENT_DISCONNECT_DONE:
871                log("DataConnectionTracker.handleMessage: EVENT_DISCONNECT_DONE msg=" + msg);
872                onDisconnectDone(msg.arg1, (AsyncResult) msg.obj);
873                break;
874
875            case DctConstants.EVENT_DISCONNECT_DC_RETRYING:
876                log("DataConnectionTracker.handleMessage: EVENT_DISCONNECT_DC_RETRYING msg=" + msg);
877                onDisconnectDcRetrying(msg.arg1, (AsyncResult) msg.obj);
878                break;
879
880            case DctConstants.EVENT_VOICE_CALL_STARTED:
881                onVoiceCallStarted();
882                break;
883
884            case DctConstants.EVENT_VOICE_CALL_ENDED:
885                onVoiceCallEnded();
886                break;
887
888            case DctConstants.EVENT_CLEAN_UP_ALL_CONNECTIONS: {
889                onCleanUpAllConnections((String) msg.obj);
890                break;
891            }
892            case DctConstants.EVENT_CLEAN_UP_CONNECTION: {
893                boolean tearDown = (msg.arg1 == 0) ? false : true;
894                onCleanUpConnection(tearDown, msg.arg2, (String) msg.obj);
895                break;
896            }
897            case DctConstants.EVENT_SET_INTERNAL_DATA_ENABLE: {
898                boolean enabled = (msg.arg1 == DctConstants.ENABLED) ? true : false;
899                onSetInternalDataEnabled(enabled);
900                break;
901            }
902            case DctConstants.EVENT_RESET_DONE: {
903                if (DBG) log("EVENT_RESET_DONE");
904                onResetDone((AsyncResult) msg.obj);
905                break;
906            }
907            case DctConstants.CMD_SET_USER_DATA_ENABLE: {
908                final boolean enabled = (msg.arg1 == DctConstants.ENABLED) ? true : false;
909                if (DBG) log("CMD_SET_USER_DATA_ENABLE enabled=" + enabled);
910                onSetUserDataEnabled(enabled);
911                break;
912            }
913            case DctConstants.CMD_SET_DEPENDENCY_MET: {
914                boolean met = (msg.arg1 == DctConstants.ENABLED) ? true : false;
915                if (DBG) log("CMD_SET_DEPENDENCY_MET met=" + met);
916                Bundle bundle = msg.getData();
917                if (bundle != null) {
918                    String apnType = (String)bundle.get(DctConstants.APN_TYPE_KEY);
919                    if (apnType != null) {
920                        onSetDependencyMet(apnType, met);
921                    }
922                }
923                break;
924            }
925            case DctConstants.CMD_SET_POLICY_DATA_ENABLE: {
926                final boolean enabled = (msg.arg1 == DctConstants.ENABLED) ? true : false;
927                onSetPolicyDataEnabled(enabled);
928                break;
929            }
930            case DctConstants.CMD_SET_ENABLE_FAIL_FAST_MOBILE_DATA: {
931                sEnableFailFastRefCounter += (msg.arg1 == DctConstants.ENABLED) ? 1 : -1;
932                if (DBG) {
933                    log("CMD_SET_ENABLE_FAIL_FAST_MOBILE_DATA: "
934                            + " sEnableFailFastRefCounter=" + sEnableFailFastRefCounter);
935                }
936                if (sEnableFailFastRefCounter < 0) {
937                    final String s = "CMD_SET_ENABLE_FAIL_FAST_MOBILE_DATA: "
938                            + "sEnableFailFastRefCounter:" + sEnableFailFastRefCounter + " < 0";
939                    loge(s);
940                    sEnableFailFastRefCounter = 0;
941                }
942                final boolean enabled = sEnableFailFastRefCounter > 0;
943                if (DBG) {
944                    log("CMD_SET_ENABLE_FAIL_FAST_MOBILE_DATA: enabled=" + enabled
945                            + " sEnableFailFastRefCounter=" + sEnableFailFastRefCounter);
946                }
947                if (mFailFast != enabled) {
948                    mFailFast = enabled;
949                    mDataStallDetectionEnabled = !enabled;
950                    if (mDataStallDetectionEnabled
951                            && (getOverallState() == DctConstants.State.CONNECTED)
952                            && (!mInVoiceCall ||
953                                    mPhone.getServiceStateTracker()
954                                        .isConcurrentVoiceAndDataAllowed())) {
955                        if (DBG) log("CMD_SET_ENABLE_FAIL_FAST_MOBILE_DATA: start data stall");
956                        stopDataStallAlarm();
957                        startDataStallAlarm(DATA_STALL_NOT_SUSPECTED);
958                    } else {
959                        if (DBG) log("CMD_SET_ENABLE_FAIL_FAST_MOBILE_DATA: stop data stall");
960                        stopDataStallAlarm();
961                    }
962                }
963
964                break;
965            }
966            case DctConstants.CMD_ENABLE_MOBILE_PROVISIONING: {
967                Bundle bundle = msg.getData();
968                if (bundle != null) {
969                    try {
970                        mProvisioningUrl = (String)bundle.get(DctConstants.PROVISIONING_URL_KEY);
971                    } catch(ClassCastException e) {
972                        loge("CMD_ENABLE_MOBILE_PROVISIONING: provisioning url not a string" + e);
973                        mProvisioningUrl = null;
974                    }
975                }
976                if (TextUtils.isEmpty(mProvisioningUrl)) {
977                    loge("CMD_ENABLE_MOBILE_PROVISIONING: provisioning url is empty, ignoring");
978                    mIsProvisioning = false;
979                    mProvisioningUrl = null;
980                } else {
981                    loge("CMD_ENABLE_MOBILE_PROVISIONING: provisioningUrl=" + mProvisioningUrl);
982                    mIsProvisioning = true;
983                    startProvisioningApnAlarm();
984                }
985                break;
986            }
987            case DctConstants.EVENT_PROVISIONING_APN_ALARM: {
988                if (DBG) log("EVENT_PROVISIONING_APN_ALARM");
989                ApnContext apnCtx = mApnContexts.get("default");
990                if (apnCtx.isProvisioningApn() && apnCtx.isConnectedOrConnecting()) {
991                    if (mProvisioningApnAlarmTag == msg.arg1) {
992                        if (DBG) log("EVENT_PROVISIONING_APN_ALARM: Disconnecting");
993                        mIsProvisioning = false;
994                        mProvisioningUrl = null;
995                        stopProvisioningApnAlarm();
996                        sendCleanUpConnection(true, apnCtx);
997                    } else {
998                        if (DBG) {
999                            log("EVENT_PROVISIONING_APN_ALARM: ignore stale tag,"
1000                                    + " mProvisioningApnAlarmTag:" + mProvisioningApnAlarmTag
1001                                    + " != arg1:" + msg.arg1);
1002                        }
1003                    }
1004                } else {
1005                    if (DBG) log("EVENT_PROVISIONING_APN_ALARM: Not connected ignore");
1006                }
1007                break;
1008            }
1009            case DctConstants.CMD_IS_PROVISIONING_APN: {
1010                if (DBG) log("CMD_IS_PROVISIONING_APN");
1011                boolean isProvApn;
1012                try {
1013                    String apnType = null;
1014                    Bundle bundle = msg.getData();
1015                    if (bundle != null) {
1016                        apnType = (String)bundle.get(DctConstants.APN_TYPE_KEY);
1017                    }
1018                    if (TextUtils.isEmpty(apnType)) {
1019                        loge("CMD_IS_PROVISIONING_APN: apnType is empty");
1020                        isProvApn = false;
1021                    } else {
1022                        isProvApn = isProvisioningApn(apnType);
1023                    }
1024                } catch (ClassCastException e) {
1025                    loge("CMD_IS_PROVISIONING_APN: NO provisioning url ignoring");
1026                    isProvApn = false;
1027                }
1028                if (DBG) log("CMD_IS_PROVISIONING_APN: ret=" + isProvApn);
1029                mReplyAc.replyToMessage(msg, DctConstants.CMD_IS_PROVISIONING_APN,
1030                        isProvApn ? DctConstants.ENABLED : DctConstants.DISABLED);
1031                break;
1032            }
1033            case DctConstants.EVENT_ICC_CHANGED: {
1034                onUpdateIcc();
1035                break;
1036            }
1037            case DctConstants.EVENT_RESTART_RADIO: {
1038                restartRadio();
1039                break;
1040            }
1041            case DctConstants.CMD_NET_STAT_POLL: {
1042                if (msg.arg1 == DctConstants.ENABLED) {
1043                    handleStartNetStatPoll((DctConstants.Activity)msg.obj);
1044                } else if (msg.arg1 == DctConstants.DISABLED) {
1045                    handleStopNetStatPoll((DctConstants.Activity)msg.obj);
1046                }
1047                break;
1048            }
1049            default:
1050                Rlog.e("DATA", "Unidentified event msg=" + msg);
1051                break;
1052        }
1053    }
1054
1055    /**
1056     * Report on whether data connectivity is enabled
1057     *
1058     * @return {@code false} if data connectivity has been explicitly disabled,
1059     *         {@code true} otherwise.
1060     */
1061    public boolean getAnyDataEnabled() {
1062        final boolean result;
1063        synchronized (mDataEnabledLock) {
1064            result = (mInternalDataEnabled && mUserDataEnabled && sPolicyDataEnabled
1065                    && (mEnabledCount != 0));
1066        }
1067        if (!result && DBG) log("getAnyDataEnabled " + result);
1068        return result;
1069    }
1070
1071    protected boolean isEmergency() {
1072        final boolean result;
1073        synchronized (mDataEnabledLock) {
1074            result = mPhone.isInEcm() || mPhone.isInEmergencyCall();
1075        }
1076        log("isEmergency: result=" + result);
1077        return result;
1078    }
1079
1080    protected int apnTypeToId(String type) {
1081        if (TextUtils.equals(type, PhoneConstants.APN_TYPE_DEFAULT)) {
1082            return DctConstants.APN_DEFAULT_ID;
1083        } else if (TextUtils.equals(type, PhoneConstants.APN_TYPE_MMS)) {
1084            return DctConstants.APN_MMS_ID;
1085        } else if (TextUtils.equals(type, PhoneConstants.APN_TYPE_SUPL)) {
1086            return DctConstants.APN_SUPL_ID;
1087        } else if (TextUtils.equals(type, PhoneConstants.APN_TYPE_DUN)) {
1088            return DctConstants.APN_DUN_ID;
1089        } else if (TextUtils.equals(type, PhoneConstants.APN_TYPE_HIPRI)) {
1090            return DctConstants.APN_HIPRI_ID;
1091        } else if (TextUtils.equals(type, PhoneConstants.APN_TYPE_IMS)) {
1092            return DctConstants.APN_IMS_ID;
1093        } else if (TextUtils.equals(type, PhoneConstants.APN_TYPE_FOTA)) {
1094            return DctConstants.APN_FOTA_ID;
1095        } else if (TextUtils.equals(type, PhoneConstants.APN_TYPE_CBS)) {
1096            return DctConstants.APN_CBS_ID;
1097        } else if (TextUtils.equals(type, PhoneConstants.APN_TYPE_IA)) {
1098            return DctConstants.APN_IA_ID;
1099        } else if (TextUtils.equals(type, PhoneConstants.APN_TYPE_EMERGENCY)) {
1100            return DctConstants.APN_EMERGENCY_ID;
1101        } else {
1102            return DctConstants.APN_INVALID_ID;
1103        }
1104    }
1105
1106    protected String apnIdToType(int id) {
1107        switch (id) {
1108        case DctConstants.APN_DEFAULT_ID:
1109            return PhoneConstants.APN_TYPE_DEFAULT;
1110        case DctConstants.APN_MMS_ID:
1111            return PhoneConstants.APN_TYPE_MMS;
1112        case DctConstants.APN_SUPL_ID:
1113            return PhoneConstants.APN_TYPE_SUPL;
1114        case DctConstants.APN_DUN_ID:
1115            return PhoneConstants.APN_TYPE_DUN;
1116        case DctConstants.APN_HIPRI_ID:
1117            return PhoneConstants.APN_TYPE_HIPRI;
1118        case DctConstants.APN_IMS_ID:
1119            return PhoneConstants.APN_TYPE_IMS;
1120        case DctConstants.APN_FOTA_ID:
1121            return PhoneConstants.APN_TYPE_FOTA;
1122        case DctConstants.APN_CBS_ID:
1123            return PhoneConstants.APN_TYPE_CBS;
1124        case DctConstants.APN_IA_ID:
1125            return PhoneConstants.APN_TYPE_IA;
1126        case DctConstants.APN_EMERGENCY_ID:
1127            return PhoneConstants.APN_TYPE_EMERGENCY;
1128        default:
1129            log("Unknown id (" + id + ") in apnIdToType");
1130            return PhoneConstants.APN_TYPE_DEFAULT;
1131        }
1132    }
1133
1134    public LinkProperties getLinkProperties(String apnType) {
1135        int id = apnTypeToId(apnType);
1136
1137        if (isApnIdEnabled(id)) {
1138            DcAsyncChannel dcac = mDataConnectionAcHashMap.get(0);
1139            return dcac.getLinkPropertiesSync();
1140        } else {
1141            return new LinkProperties();
1142        }
1143    }
1144
1145    public NetworkCapabilities getNetworkCapabilities(String apnType) {
1146        int id = apnTypeToId(apnType);
1147        if (isApnIdEnabled(id)) {
1148            DcAsyncChannel dcac = mDataConnectionAcHashMap.get(0);
1149            return dcac.getNetworkCapabilitiesSync();
1150        } else {
1151            return new NetworkCapabilities();
1152        }
1153    }
1154
1155    // tell all active apns of the current condition
1156    protected void notifyDataConnection(String reason) {
1157        for (int id = 0; id < DctConstants.APN_NUM_TYPES; id++) {
1158            if (mDataEnabled[id]) {
1159                mPhone.notifyDataConnection(reason, apnIdToType(id));
1160            }
1161        }
1162        notifyOffApnsOfAvailability(reason);
1163    }
1164
1165    // a new APN has gone active and needs to send events to catch up with the
1166    // current condition
1167    private void notifyApnIdUpToCurrent(String reason, int apnId) {
1168        switch (mState) {
1169            case IDLE:
1170                break;
1171            case RETRYING:
1172            case CONNECTING:
1173            case SCANNING:
1174                mPhone.notifyDataConnection(reason, apnIdToType(apnId),
1175                        PhoneConstants.DataState.CONNECTING);
1176                break;
1177            case CONNECTED:
1178            case DISCONNECTING:
1179                mPhone.notifyDataConnection(reason, apnIdToType(apnId),
1180                        PhoneConstants.DataState.CONNECTING);
1181                mPhone.notifyDataConnection(reason, apnIdToType(apnId),
1182                        PhoneConstants.DataState.CONNECTED);
1183                break;
1184            default:
1185                // Ignore
1186                break;
1187        }
1188    }
1189
1190    // since we normally don't send info to a disconnected APN, we need to do this specially
1191    private void notifyApnIdDisconnected(String reason, int apnId) {
1192        mPhone.notifyDataConnection(reason, apnIdToType(apnId),
1193                PhoneConstants.DataState.DISCONNECTED);
1194    }
1195
1196    // disabled apn's still need avail/unavail notificiations - send them out
1197    protected void notifyOffApnsOfAvailability(String reason) {
1198        if (DBG) log("notifyOffApnsOfAvailability - reason= " + reason);
1199        for (int id = 0; id < DctConstants.APN_NUM_TYPES; id++) {
1200            if (!isApnIdEnabled(id)) {
1201                notifyApnIdDisconnected(reason, id);
1202            }
1203        }
1204    }
1205
1206    public boolean isApnTypeEnabled(String apnType) {
1207        if (apnType == null) {
1208            return false;
1209        } else {
1210            return isApnIdEnabled(apnTypeToId(apnType));
1211        }
1212    }
1213
1214    protected synchronized boolean isApnIdEnabled(int id) {
1215        if (id != DctConstants.APN_INVALID_ID) {
1216            return mDataEnabled[id];
1217        }
1218        return false;
1219    }
1220
1221    protected void setEnabled(int id, boolean enable) {
1222        if (DBG) {
1223            log("setEnabled(" + id + ", " + enable + ") with old state = " + mDataEnabled[id]
1224                    + " and enabledCount = " + mEnabledCount);
1225        }
1226        Message msg = obtainMessage(DctConstants.EVENT_ENABLE_NEW_APN);
1227        msg.arg1 = id;
1228        msg.arg2 = (enable ? DctConstants.ENABLED : DctConstants.DISABLED);
1229        sendMessage(msg);
1230    }
1231
1232    protected void onEnableApn(int apnId, int enabled) {
1233        if (DBG) {
1234            log("EVENT_APN_ENABLE_REQUEST apnId=" + apnId + ", apnType=" + apnIdToType(apnId) +
1235                    ", enabled=" + enabled + ", dataEnabled = " + mDataEnabled[apnId] +
1236                    ", enabledCount = " + mEnabledCount + ", isApnTypeActive = " +
1237                    isApnTypeActive(apnIdToType(apnId)));
1238        }
1239        if (enabled == DctConstants.ENABLED) {
1240            synchronized (this) {
1241                if (!mDataEnabled[apnId]) {
1242                    mDataEnabled[apnId] = true;
1243                    mEnabledCount++;
1244                }
1245            }
1246            String type = apnIdToType(apnId);
1247            if (!isApnTypeActive(type)) {
1248                mRequestedApnType = type;
1249                onEnableNewApn();
1250            } else {
1251                notifyApnIdUpToCurrent(Phone.REASON_APN_SWITCHED, apnId);
1252            }
1253        } else {
1254            // disable
1255            boolean didDisable = false;
1256            synchronized (this) {
1257                if (mDataEnabled[apnId]) {
1258                    mDataEnabled[apnId] = false;
1259                    mEnabledCount--;
1260                    didDisable = true;
1261                }
1262            }
1263            if (didDisable) {
1264                if ((mEnabledCount == 0) || (apnId == DctConstants.APN_DUN_ID)) {
1265                    mRequestedApnType = PhoneConstants.APN_TYPE_DEFAULT;
1266                    onCleanUpConnection(true, apnId, Phone.REASON_DATA_DISABLED);
1267                }
1268
1269                // send the disconnect msg manually, since the normal route wont send
1270                // it (it's not enabled)
1271                notifyApnIdDisconnected(Phone.REASON_DATA_DISABLED, apnId);
1272                if (mDataEnabled[DctConstants.APN_DEFAULT_ID] == true
1273                        && !isApnTypeActive(PhoneConstants.APN_TYPE_DEFAULT)) {
1274                    // TODO - this is an ugly way to restore the default conn - should be done
1275                    // by a real contention manager and policy that disconnects the lower pri
1276                    // stuff as enable requests come in and pops them back on as we disable back
1277                    // down to the lower pri stuff
1278                    mRequestedApnType = PhoneConstants.APN_TYPE_DEFAULT;
1279                    onEnableNewApn();
1280                }
1281            }
1282        }
1283    }
1284
1285    /**
1286     * Called when we switch APNs.
1287     *
1288     * mRequestedApnType is set prior to call
1289     * To be overridden.
1290     */
1291    protected void onEnableNewApn() {
1292    }
1293
1294    /**
1295     * Called when EVENT_RESET_DONE is received so goto
1296     * IDLE state and send notifications to those interested.
1297     *
1298     * TODO - currently unused.  Needs to be hooked into DataConnection cleanup
1299     * TODO - needs to pass some notion of which connection is reset..
1300     */
1301    protected void onResetDone(AsyncResult ar) {
1302        if (DBG) log("EVENT_RESET_DONE");
1303        String reason = null;
1304        if (ar.userObj instanceof String) {
1305            reason = (String) ar.userObj;
1306        }
1307        gotoIdleAndNotifyDataConnection(reason);
1308    }
1309
1310    /**
1311     * Prevent mobile data connections from being established, or once again
1312     * allow mobile data connections. If the state toggles, then either tear
1313     * down or set up data, as appropriate to match the new state.
1314     *
1315     * @param enable indicates whether to enable ({@code true}) or disable (
1316     *            {@code false}) data
1317     * @return {@code true} if the operation succeeded
1318     */
1319    public boolean setInternalDataEnabled(boolean enable) {
1320        if (DBG)
1321            log("setInternalDataEnabled(" + enable + ")");
1322
1323        Message msg = obtainMessage(DctConstants.EVENT_SET_INTERNAL_DATA_ENABLE);
1324        msg.arg1 = (enable ? DctConstants.ENABLED : DctConstants.DISABLED);
1325        sendMessage(msg);
1326        return true;
1327    }
1328
1329    protected void onSetInternalDataEnabled(boolean enabled) {
1330        synchronized (mDataEnabledLock) {
1331            mInternalDataEnabled = enabled;
1332            if (enabled) {
1333                log("onSetInternalDataEnabled: changed to enabled, try to setup data call");
1334                onTrySetupData(Phone.REASON_DATA_ENABLED);
1335            } else {
1336                log("onSetInternalDataEnabled: changed to disabled, cleanUpAllConnections");
1337                cleanUpAllConnections(null);
1338            }
1339        }
1340    }
1341
1342    public void cleanUpAllConnections(String cause) {
1343        Message msg = obtainMessage(DctConstants.EVENT_CLEAN_UP_ALL_CONNECTIONS);
1344        msg.obj = cause;
1345        sendMessage(msg);
1346    }
1347
1348    public abstract boolean isDisconnected();
1349
1350    protected void onSetUserDataEnabled(boolean enabled) {
1351        synchronized (mDataEnabledLock) {
1352            if (mUserDataEnabled != enabled) {
1353                mUserDataEnabled = enabled;
1354                int phoneSubId = mPhone.getSubId();
1355                Settings.Global.putInt(mPhone.getContext().getContentResolver(),
1356                        Settings.Global.MOBILE_DATA + phoneSubId, enabled ? 1 : 0);
1357                if (getDataOnRoamingEnabled() == false &&
1358                        mPhone.getServiceState().getRoaming() == true) {
1359                    if (enabled) {
1360                        notifyOffApnsOfAvailability(Phone.REASON_ROAMING_ON);
1361                    } else {
1362                        notifyOffApnsOfAvailability(Phone.REASON_DATA_DISABLED);
1363                    }
1364                }
1365
1366                if (enabled) {
1367                    onTrySetupData(Phone.REASON_DATA_ENABLED);
1368                } else {
1369                    onCleanUpAllConnections(Phone.REASON_DATA_SPECIFIC_DISABLED);
1370                }
1371            }
1372        }
1373    }
1374
1375    protected void onSetDependencyMet(String apnType, boolean met) {
1376    }
1377
1378    protected void onSetPolicyDataEnabled(boolean enabled) {
1379        synchronized (mDataEnabledLock) {
1380            final boolean prevEnabled = getAnyDataEnabled();
1381            if (sPolicyDataEnabled != enabled) {
1382                sPolicyDataEnabled = enabled;
1383                if (prevEnabled != getAnyDataEnabled()) {
1384                    if (!prevEnabled) {
1385                        onTrySetupData(Phone.REASON_DATA_ENABLED);
1386                    } else {
1387                        onCleanUpAllConnections(Phone.REASON_DATA_SPECIFIC_DISABLED);
1388                    }
1389                }
1390            }
1391        }
1392    }
1393
1394    protected String getReryConfig(boolean forDefault) {
1395        int nt = mPhone.getServiceState().getNetworkType();
1396
1397        if ((nt == TelephonyManager.NETWORK_TYPE_CDMA) ||
1398            (nt == TelephonyManager.NETWORK_TYPE_1xRTT) ||
1399            (nt == TelephonyManager.NETWORK_TYPE_EVDO_0) ||
1400            (nt == TelephonyManager.NETWORK_TYPE_EVDO_A) ||
1401            (nt == TelephonyManager.NETWORK_TYPE_EVDO_B) ||
1402            (nt == TelephonyManager.NETWORK_TYPE_EHRPD)) {
1403            // CDMA variant
1404            return SystemProperties.get("ro.cdma.data_retry_config");
1405        } else {
1406            // Use GSM varient for all others.
1407            if (forDefault) {
1408                return SystemProperties.get("ro.gsm.data_retry_config");
1409            } else {
1410                return SystemProperties.get("ro.gsm.2nd_data_retry_config");
1411            }
1412        }
1413    }
1414
1415    protected void resetPollStats() {
1416        mTxPkts = -1;
1417        mRxPkts = -1;
1418        mNetStatPollPeriod = POLL_NETSTAT_MILLIS;
1419    }
1420
1421    protected abstract DctConstants.State getOverallState();
1422
1423    void startNetStatPoll() {
1424        if (getOverallState() == DctConstants.State.CONNECTED
1425                && mNetStatPollEnabled == false) {
1426            if (DBG) {
1427                log("startNetStatPoll");
1428            }
1429            resetPollStats();
1430            mNetStatPollEnabled = true;
1431            mPollNetStat.run();
1432        }
1433        if (mPhone != null) {
1434            mPhone.notifyDataActivity();
1435        }
1436    }
1437
1438    void stopNetStatPoll() {
1439        mNetStatPollEnabled = false;
1440        removeCallbacks(mPollNetStat);
1441        if (DBG) {
1442            log("stopNetStatPoll");
1443        }
1444
1445        // To sync data activity icon in the case of switching data connection to send MMS.
1446        if (mPhone != null) {
1447            mPhone.notifyDataActivity();
1448        }
1449    }
1450
1451    public void sendStartNetStatPoll(DctConstants.Activity activity) {
1452        Message msg = obtainMessage(DctConstants.CMD_NET_STAT_POLL);
1453        msg.arg1 = DctConstants.ENABLED;
1454        msg.obj = activity;
1455        sendMessage(msg);
1456    }
1457
1458    protected void handleStartNetStatPoll(DctConstants.Activity activity) {
1459        startNetStatPoll();
1460        startDataStallAlarm(DATA_STALL_NOT_SUSPECTED);
1461        setActivity(activity);
1462    }
1463
1464    public void sendStopNetStatPoll(DctConstants.Activity activity) {
1465        Message msg = obtainMessage(DctConstants.CMD_NET_STAT_POLL);
1466        msg.arg1 = DctConstants.DISABLED;
1467        msg.obj = activity;
1468        sendMessage(msg);
1469    }
1470
1471    protected void handleStopNetStatPoll(DctConstants.Activity activity) {
1472        stopNetStatPoll();
1473        stopDataStallAlarm();
1474        setActivity(activity);
1475    }
1476
1477    public void updateDataActivity() {
1478        long sent, received;
1479
1480        DctConstants.Activity newActivity;
1481
1482        TxRxSum preTxRxSum = new TxRxSum(mTxPkts, mRxPkts);
1483        TxRxSum curTxRxSum = new TxRxSum();
1484        curTxRxSum.updateTxRxSum();
1485        mTxPkts = curTxRxSum.txPkts;
1486        mRxPkts = curTxRxSum.rxPkts;
1487
1488        if (VDBG) {
1489            log("updateDataActivity: curTxRxSum=" + curTxRxSum + " preTxRxSum=" + preTxRxSum);
1490        }
1491
1492        if (mNetStatPollEnabled && (preTxRxSum.txPkts > 0 || preTxRxSum.rxPkts > 0)) {
1493            sent = mTxPkts - preTxRxSum.txPkts;
1494            received = mRxPkts - preTxRxSum.rxPkts;
1495
1496            if (VDBG)
1497                log("updateDataActivity: sent=" + sent + " received=" + received);
1498            if (sent > 0 && received > 0) {
1499                newActivity = DctConstants.Activity.DATAINANDOUT;
1500            } else if (sent > 0 && received == 0) {
1501                newActivity = DctConstants.Activity.DATAOUT;
1502            } else if (sent == 0 && received > 0) {
1503                newActivity = DctConstants.Activity.DATAIN;
1504            } else {
1505                newActivity = (mActivity == DctConstants.Activity.DORMANT) ?
1506                        mActivity : DctConstants.Activity.NONE;
1507            }
1508
1509            if (mActivity != newActivity && mIsScreenOn) {
1510                if (VDBG)
1511                    log("updateDataActivity: newActivity=" + newActivity);
1512                mActivity = newActivity;
1513                mPhone.notifyDataActivity();
1514            }
1515        }
1516    }
1517
1518    // Recovery action taken in case of data stall
1519    protected static class RecoveryAction {
1520        public static final int GET_DATA_CALL_LIST      = 0;
1521        public static final int CLEANUP                 = 1;
1522        public static final int REREGISTER              = 2;
1523        public static final int RADIO_RESTART           = 3;
1524        public static final int RADIO_RESTART_WITH_PROP = 4;
1525
1526        private static boolean isAggressiveRecovery(int value) {
1527            return ((value == RecoveryAction.CLEANUP) ||
1528                    (value == RecoveryAction.REREGISTER) ||
1529                    (value == RecoveryAction.RADIO_RESTART) ||
1530                    (value == RecoveryAction.RADIO_RESTART_WITH_PROP));
1531        }
1532    }
1533
1534    public int getRecoveryAction() {
1535        int action = Settings.System.getInt(mPhone.getContext().getContentResolver(),
1536                "radio.data.stall.recovery.action", RecoveryAction.GET_DATA_CALL_LIST);
1537        if (VDBG_STALL) log("getRecoveryAction: " + action);
1538        return action;
1539    }
1540    public void putRecoveryAction(int action) {
1541        Settings.System.putInt(mPhone.getContext().getContentResolver(),
1542                "radio.data.stall.recovery.action", action);
1543        if (VDBG_STALL) log("putRecoveryAction: " + action);
1544    }
1545
1546    protected boolean isConnected() {
1547        return false;
1548    }
1549
1550    protected void doRecovery() {
1551        if (getOverallState() == DctConstants.State.CONNECTED) {
1552            // Go through a series of recovery steps, each action transitions to the next action
1553            int recoveryAction = getRecoveryAction();
1554            switch (recoveryAction) {
1555            case RecoveryAction.GET_DATA_CALL_LIST:
1556                EventLog.writeEvent(EventLogTags.DATA_STALL_RECOVERY_GET_DATA_CALL_LIST,
1557                        mSentSinceLastRecv);
1558                if (DBG) log("doRecovery() get data call list");
1559                mPhone.mCi.getDataCallList(obtainMessage(DctConstants.EVENT_DATA_STATE_CHANGED));
1560                putRecoveryAction(RecoveryAction.CLEANUP);
1561                break;
1562            case RecoveryAction.CLEANUP:
1563                EventLog.writeEvent(EventLogTags.DATA_STALL_RECOVERY_CLEANUP, mSentSinceLastRecv);
1564                if (DBG) log("doRecovery() cleanup all connections");
1565                cleanUpAllConnections(Phone.REASON_PDP_RESET);
1566                putRecoveryAction(RecoveryAction.REREGISTER);
1567                break;
1568            case RecoveryAction.REREGISTER:
1569                EventLog.writeEvent(EventLogTags.DATA_STALL_RECOVERY_REREGISTER,
1570                        mSentSinceLastRecv);
1571                if (DBG) log("doRecovery() re-register");
1572                mPhone.getServiceStateTracker().reRegisterNetwork(null);
1573                putRecoveryAction(RecoveryAction.RADIO_RESTART);
1574                break;
1575            case RecoveryAction.RADIO_RESTART:
1576                EventLog.writeEvent(EventLogTags.DATA_STALL_RECOVERY_RADIO_RESTART,
1577                        mSentSinceLastRecv);
1578                if (DBG) log("restarting radio");
1579                putRecoveryAction(RecoveryAction.RADIO_RESTART_WITH_PROP);
1580                restartRadio();
1581                break;
1582            case RecoveryAction.RADIO_RESTART_WITH_PROP:
1583                // This is in case radio restart has not recovered the data.
1584                // It will set an additional "gsm.radioreset" property to tell
1585                // RIL or system to take further action.
1586                // The implementation of hard reset recovery action is up to OEM product.
1587                // Once RADIO_RESET property is consumed, it is expected to set back
1588                // to false by RIL.
1589                EventLog.writeEvent(EventLogTags.DATA_STALL_RECOVERY_RADIO_RESTART_WITH_PROP, -1);
1590                if (DBG) log("restarting radio with gsm.radioreset to true");
1591                SystemProperties.set(RADIO_RESET_PROPERTY, "true");
1592                // give 1 sec so property change can be notified.
1593                try {
1594                    Thread.sleep(1000);
1595                } catch (InterruptedException e) {}
1596                restartRadio();
1597                putRecoveryAction(RecoveryAction.GET_DATA_CALL_LIST);
1598                break;
1599            default:
1600                throw new RuntimeException("doRecovery: Invalid recoveryAction=" +
1601                    recoveryAction);
1602            }
1603            mSentSinceLastRecv = 0;
1604        }
1605    }
1606
1607    private void updateDataStallInfo() {
1608        long sent, received;
1609
1610        TxRxSum preTxRxSum = new TxRxSum(mDataStallTxRxSum);
1611        mDataStallTxRxSum.updateTxRxSum();
1612
1613        if (VDBG_STALL) {
1614            log("updateDataStallInfo: mDataStallTxRxSum=" + mDataStallTxRxSum +
1615                    " preTxRxSum=" + preTxRxSum);
1616        }
1617
1618        sent = mDataStallTxRxSum.txPkts - preTxRxSum.txPkts;
1619        received = mDataStallTxRxSum.rxPkts - preTxRxSum.rxPkts;
1620
1621        if (RADIO_TESTS) {
1622            if (SystemProperties.getBoolean("radio.test.data.stall", false)) {
1623                log("updateDataStallInfo: radio.test.data.stall true received = 0;");
1624                received = 0;
1625            }
1626        }
1627        if ( sent > 0 && received > 0 ) {
1628            if (VDBG_STALL) log("updateDataStallInfo: IN/OUT");
1629            mSentSinceLastRecv = 0;
1630            putRecoveryAction(RecoveryAction.GET_DATA_CALL_LIST);
1631        } else if (sent > 0 && received == 0) {
1632            if (mPhone.getState() == PhoneConstants.State.IDLE) {
1633                mSentSinceLastRecv += sent;
1634            } else {
1635                mSentSinceLastRecv = 0;
1636            }
1637            if (DBG) {
1638                log("updateDataStallInfo: OUT sent=" + sent +
1639                        " mSentSinceLastRecv=" + mSentSinceLastRecv);
1640            }
1641        } else if (sent == 0 && received > 0) {
1642            if (VDBG_STALL) log("updateDataStallInfo: IN");
1643            mSentSinceLastRecv = 0;
1644            putRecoveryAction(RecoveryAction.GET_DATA_CALL_LIST);
1645        } else {
1646            if (VDBG_STALL) log("updateDataStallInfo: NONE");
1647        }
1648    }
1649
1650    protected void onDataStallAlarm(int tag) {
1651        if (mDataStallAlarmTag != tag) {
1652            if (DBG) {
1653                log("onDataStallAlarm: ignore, tag=" + tag + " expecting " + mDataStallAlarmTag);
1654            }
1655            return;
1656        }
1657        updateDataStallInfo();
1658
1659        int hangWatchdogTrigger = Settings.Global.getInt(mResolver,
1660                Settings.Global.PDP_WATCHDOG_TRIGGER_PACKET_COUNT,
1661                NUMBER_SENT_PACKETS_OF_HANG);
1662
1663        boolean suspectedStall = DATA_STALL_NOT_SUSPECTED;
1664        if (mSentSinceLastRecv >= hangWatchdogTrigger) {
1665            if (DBG) {
1666                log("onDataStallAlarm: tag=" + tag + " do recovery action=" + getRecoveryAction());
1667            }
1668            suspectedStall = DATA_STALL_SUSPECTED;
1669            sendMessage(obtainMessage(DctConstants.EVENT_DO_RECOVERY));
1670        } else {
1671            if (VDBG_STALL) {
1672                log("onDataStallAlarm: tag=" + tag + " Sent " + String.valueOf(mSentSinceLastRecv) +
1673                    " pkts since last received, < watchdogTrigger=" + hangWatchdogTrigger);
1674            }
1675        }
1676        startDataStallAlarm(suspectedStall);
1677    }
1678
1679    protected void startDataStallAlarm(boolean suspectedStall) {
1680        int nextAction = getRecoveryAction();
1681        int delayInMs;
1682
1683        if (mDataStallDetectionEnabled && getOverallState() == DctConstants.State.CONNECTED) {
1684            // If screen is on or data stall is currently suspected, set the alarm
1685            // with an aggresive timeout.
1686            if (mIsScreenOn || suspectedStall || RecoveryAction.isAggressiveRecovery(nextAction)) {
1687                delayInMs = Settings.Global.getInt(mResolver,
1688                        Settings.Global.DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS,
1689                        DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS_DEFAULT);
1690            } else {
1691                delayInMs = Settings.Global.getInt(mResolver,
1692                        Settings.Global.DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS,
1693                        DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS_DEFAULT);
1694            }
1695
1696            mDataStallAlarmTag += 1;
1697            if (VDBG_STALL) {
1698                log("startDataStallAlarm: tag=" + mDataStallAlarmTag +
1699                        " delay=" + (delayInMs / 1000) + "s");
1700            }
1701            Intent intent = new Intent(INTENT_DATA_STALL_ALARM);
1702            intent.putExtra(DATA_STALL_ALARM_TAG_EXTRA, mDataStallAlarmTag);
1703            mDataStallAlarmIntent = PendingIntent.getBroadcast(mPhone.getContext(), 0, intent,
1704                    PendingIntent.FLAG_UPDATE_CURRENT);
1705            mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
1706                    SystemClock.elapsedRealtime() + delayInMs, mDataStallAlarmIntent);
1707        } else {
1708            if (VDBG_STALL) {
1709                log("startDataStallAlarm: NOT started, no connection tag=" + mDataStallAlarmTag);
1710            }
1711        }
1712    }
1713
1714    protected void stopDataStallAlarm() {
1715        if (VDBG_STALL) {
1716            log("stopDataStallAlarm: current tag=" + mDataStallAlarmTag +
1717                    " mDataStallAlarmIntent=" + mDataStallAlarmIntent);
1718        }
1719        mDataStallAlarmTag += 1;
1720        if (mDataStallAlarmIntent != null) {
1721            mAlarmManager.cancel(mDataStallAlarmIntent);
1722            mDataStallAlarmIntent = null;
1723        }
1724    }
1725
1726    protected void restartDataStallAlarm() {
1727        if (isConnected() == false) return;
1728        // To be called on screen status change.
1729        // Do not cancel the alarm if it is set with aggressive timeout.
1730        int nextAction = getRecoveryAction();
1731
1732        if (RecoveryAction.isAggressiveRecovery(nextAction)) {
1733            if (DBG) log("restartDataStallAlarm: action is pending. not resetting the alarm.");
1734            return;
1735        }
1736        if (VDBG_STALL) log("restartDataStallAlarm: stop then start.");
1737        stopDataStallAlarm();
1738        startDataStallAlarm(DATA_STALL_NOT_SUSPECTED);
1739    }
1740
1741    protected void setInitialAttachApn() {
1742        ApnSetting iaApnSetting = null;
1743        ApnSetting defaultApnSetting = null;
1744        ApnSetting firstApnSetting = null;
1745
1746        log("setInitialApn: E mPreferredApn=" + mPreferredApn);
1747
1748        if (mAllApnSettings != null && !mAllApnSettings.isEmpty()) {
1749            firstApnSetting = mAllApnSettings.get(0);
1750            log("setInitialApn: firstApnSetting=" + firstApnSetting);
1751
1752            // Search for Initial APN setting and the first apn that can handle default
1753            for (ApnSetting apn : mAllApnSettings) {
1754                // Can't use apn.canHandleType(), as that returns true for APNs that have no type.
1755                if (ArrayUtils.contains(apn.types, PhoneConstants.APN_TYPE_IA) &&
1756                        apn.carrierEnabled) {
1757                    // The Initial Attach APN is highest priority so use it if there is one
1758                    log("setInitialApn: iaApnSetting=" + apn);
1759                    iaApnSetting = apn;
1760                    break;
1761                } else if ((defaultApnSetting == null)
1762                        && (apn.canHandleType(PhoneConstants.APN_TYPE_DEFAULT))) {
1763                    // Use the first default apn if no better choice
1764                    log("setInitialApn: defaultApnSetting=" + apn);
1765                    defaultApnSetting = apn;
1766                }
1767            }
1768        }
1769
1770        // The priority of apn candidates from highest to lowest is:
1771        //   1) APN_TYPE_IA (Inital Attach)
1772        //   2) mPreferredApn, i.e. the current preferred apn
1773        //   3) The first apn that than handle APN_TYPE_DEFAULT
1774        //   4) The first APN we can find.
1775
1776        ApnSetting initialAttachApnSetting = null;
1777        if (iaApnSetting != null) {
1778            if (DBG) log("setInitialAttachApn: using iaApnSetting");
1779            initialAttachApnSetting = iaApnSetting;
1780        } else if (mPreferredApn != null) {
1781            if (DBG) log("setInitialAttachApn: using mPreferredApn");
1782            initialAttachApnSetting = mPreferredApn;
1783        } else if (defaultApnSetting != null) {
1784            if (DBG) log("setInitialAttachApn: using defaultApnSetting");
1785            initialAttachApnSetting = defaultApnSetting;
1786        } else if (firstApnSetting != null) {
1787            if (DBG) log("setInitialAttachApn: using firstApnSetting");
1788            initialAttachApnSetting = firstApnSetting;
1789        }
1790
1791        if (initialAttachApnSetting == null) {
1792            if (DBG) log("setInitialAttachApn: X There in no available apn");
1793        } else {
1794            if (DBG) log("setInitialAttachApn: X selected Apn=" + initialAttachApnSetting);
1795
1796            mPhone.mCi.setInitialAttachApn(initialAttachApnSetting.apn,
1797                    initialAttachApnSetting.protocol, initialAttachApnSetting.authType,
1798                    initialAttachApnSetting.user, initialAttachApnSetting.password, null);
1799        }
1800    }
1801
1802    protected void setDataProfilesAsNeeded() {
1803        if (DBG) log("setDataProfilesAsNeeded");
1804        if (mAllApnSettings != null && !mAllApnSettings.isEmpty()) {
1805            ArrayList<DataProfile> dps = new ArrayList<DataProfile>();
1806            for (ApnSetting apn : mAllApnSettings) {
1807                if (apn.modemCognitive) {
1808                    DataProfile dp = new DataProfile(apn,
1809                            mPhone.getServiceState().getRoaming());
1810                    boolean isDup = false;
1811                    for(DataProfile dpIn : dps) {
1812                        if (dp.equals(dpIn)) {
1813                            isDup = true;
1814                            break;
1815                        }
1816                    }
1817                    if (!isDup) {
1818                        dps.add(dp);
1819                    }
1820                }
1821            }
1822            if(dps.size() > 0) {
1823                mPhone.mCi.setDataProfile(dps.toArray(new DataProfile[0]), null);
1824            }
1825        }
1826    }
1827
1828    protected void onActionIntentProvisioningApnAlarm(Intent intent) {
1829        if (DBG) log("onActionIntentProvisioningApnAlarm: action=" + intent.getAction());
1830        Message msg = obtainMessage(DctConstants.EVENT_PROVISIONING_APN_ALARM,
1831                intent.getAction());
1832        msg.arg1 = intent.getIntExtra(PROVISIONING_APN_ALARM_TAG_EXTRA, 0);
1833        sendMessage(msg);
1834    }
1835
1836    protected void startProvisioningApnAlarm() {
1837        int delayInMs = Settings.Global.getInt(mResolver,
1838                                Settings.Global.PROVISIONING_APN_ALARM_DELAY_IN_MS,
1839                                PROVISIONING_APN_ALARM_DELAY_IN_MS_DEFAULT);
1840        if (Build.IS_DEBUGGABLE) {
1841            // Allow debug code to use a system property to provide another value
1842            String delayInMsStrg = Integer.toString(delayInMs);
1843            delayInMsStrg = System.getProperty(DEBUG_PROV_APN_ALARM, delayInMsStrg);
1844            try {
1845                delayInMs = Integer.parseInt(delayInMsStrg);
1846            } catch (NumberFormatException e) {
1847                loge("startProvisioningApnAlarm: e=" + e);
1848            }
1849        }
1850        mProvisioningApnAlarmTag += 1;
1851        if (DBG) {
1852            log("startProvisioningApnAlarm: tag=" + mProvisioningApnAlarmTag +
1853                    " delay=" + (delayInMs / 1000) + "s");
1854        }
1855        Intent intent = new Intent(INTENT_PROVISIONING_APN_ALARM);
1856        intent.putExtra(PROVISIONING_APN_ALARM_TAG_EXTRA, mProvisioningApnAlarmTag);
1857        mProvisioningApnAlarmIntent = PendingIntent.getBroadcast(mPhone.getContext(), 0, intent,
1858                PendingIntent.FLAG_UPDATE_CURRENT);
1859        mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
1860                SystemClock.elapsedRealtime() + delayInMs, mProvisioningApnAlarmIntent);
1861    }
1862
1863    protected void stopProvisioningApnAlarm() {
1864        if (DBG) {
1865            log("stopProvisioningApnAlarm: current tag=" + mProvisioningApnAlarmTag +
1866                    " mProvsioningApnAlarmIntent=" + mProvisioningApnAlarmIntent);
1867        }
1868        mProvisioningApnAlarmTag += 1;
1869        if (mProvisioningApnAlarmIntent != null) {
1870            mAlarmManager.cancel(mProvisioningApnAlarmIntent);
1871            mProvisioningApnAlarmIntent = null;
1872        }
1873    }
1874
1875    void sendCleanUpConnection(boolean tearDown, ApnContext apnContext) {
1876        if (DBG)log("sendCleanUpConnection: tearDown=" + tearDown + " apnContext=" + apnContext);
1877        Message msg = obtainMessage(DctConstants.EVENT_CLEAN_UP_CONNECTION);
1878        msg.arg1 = tearDown ? 1 : 0;
1879        msg.arg2 = 0;
1880        msg.obj = apnContext;
1881        sendMessage(msg);
1882    }
1883
1884    void sendRestartRadio() {
1885        if (DBG)log("sendRestartRadio:");
1886        Message msg = obtainMessage(DctConstants.EVENT_RESTART_RADIO);
1887        sendMessage(msg);
1888    }
1889
1890    public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
1891        pw.println("DcTrackerBase:");
1892        pw.println(" RADIO_TESTS=" + RADIO_TESTS);
1893        pw.println(" mInternalDataEnabled=" + mInternalDataEnabled);
1894        pw.println(" mUserDataEnabled=" + mUserDataEnabled);
1895        pw.println(" sPolicyDataEnabed=" + sPolicyDataEnabled);
1896        pw.println(" mDataEnabled:");
1897        for(int i=0; i < mDataEnabled.length; i++) {
1898            pw.printf("  mDataEnabled[%d]=%b\n", i, mDataEnabled[i]);
1899        }
1900        pw.flush();
1901        pw.println(" mEnabledCount=" + mEnabledCount);
1902        pw.println(" mRequestedApnType=" + mRequestedApnType);
1903        pw.println(" mPhone=" + mPhone.getPhoneName());
1904        pw.println(" mActivity=" + mActivity);
1905        pw.println(" mState=" + mState);
1906        pw.println(" mTxPkts=" + mTxPkts);
1907        pw.println(" mRxPkts=" + mRxPkts);
1908        pw.println(" mNetStatPollPeriod=" + mNetStatPollPeriod);
1909        pw.println(" mNetStatPollEnabled=" + mNetStatPollEnabled);
1910        pw.println(" mDataStallTxRxSum=" + mDataStallTxRxSum);
1911        pw.println(" mDataStallAlarmTag=" + mDataStallAlarmTag);
1912        pw.println(" mDataStallDetectionEanbled=" + mDataStallDetectionEnabled);
1913        pw.println(" mSentSinceLastRecv=" + mSentSinceLastRecv);
1914        pw.println(" mNoRecvPollCount=" + mNoRecvPollCount);
1915        pw.println(" mResolver=" + mResolver);
1916        pw.println(" mIsWifiConnected=" + mIsWifiConnected);
1917        pw.println(" mReconnectIntent=" + mReconnectIntent);
1918        pw.println(" mCidActive=" + mCidActive);
1919        pw.println(" mAutoAttachOnCreation=" + mAutoAttachOnCreation);
1920        pw.println(" mIsScreenOn=" + mIsScreenOn);
1921        pw.println(" mUniqueIdGenerator=" + mUniqueIdGenerator);
1922        pw.flush();
1923        pw.println(" ***************************************");
1924        DcController dcc = mDcc;
1925        if (dcc != null) {
1926            dcc.dump(fd, pw, args);
1927        } else {
1928            pw.println(" mDcc=null");
1929        }
1930        pw.println(" ***************************************");
1931        HashMap<Integer, DataConnection> dcs = mDataConnections;
1932        if (dcs != null) {
1933            Set<Entry<Integer, DataConnection> > mDcSet = mDataConnections.entrySet();
1934            pw.println(" mDataConnections: count=" + mDcSet.size());
1935            for (Entry<Integer, DataConnection> entry : mDcSet) {
1936                pw.printf(" *** mDataConnection[%d] \n", entry.getKey());
1937                entry.getValue().dump(fd, pw, args);
1938            }
1939        } else {
1940            pw.println("mDataConnections=null");
1941        }
1942        pw.println(" ***************************************");
1943        pw.flush();
1944        HashMap<String, Integer> apnToDcId = mApnToDataConnectionId;
1945        if (apnToDcId != null) {
1946            Set<Entry<String, Integer>> apnToDcIdSet = apnToDcId.entrySet();
1947            pw.println(" mApnToDataConnectonId size=" + apnToDcIdSet.size());
1948            for (Entry<String, Integer> entry : apnToDcIdSet) {
1949                pw.printf(" mApnToDataConnectonId[%s]=%d\n", entry.getKey(), entry.getValue());
1950            }
1951        } else {
1952            pw.println("mApnToDataConnectionId=null");
1953        }
1954        pw.println(" ***************************************");
1955        pw.flush();
1956        ConcurrentHashMap<String, ApnContext> apnCtxs = mApnContexts;
1957        if (apnCtxs != null) {
1958            Set<Entry<String, ApnContext>> apnCtxsSet = apnCtxs.entrySet();
1959            pw.println(" mApnContexts size=" + apnCtxsSet.size());
1960            for (Entry<String, ApnContext> entry : apnCtxsSet) {
1961                entry.getValue().dump(fd, pw, args);
1962            }
1963            pw.println(" ***************************************");
1964        } else {
1965            pw.println(" mApnContexts=null");
1966        }
1967        pw.flush();
1968        pw.println(" mActiveApn=" + mActiveApn);
1969        ArrayList<ApnSetting> apnSettings = mAllApnSettings;
1970        if (apnSettings != null) {
1971            pw.println(" mAllApnSettings size=" + apnSettings.size());
1972            for (int i=0; i < apnSettings.size(); i++) {
1973                pw.printf(" mAllApnSettings[%d]: %s\n", i, apnSettings.get(i));
1974            }
1975            pw.flush();
1976        } else {
1977            pw.println(" mAllApnSettings=null");
1978        }
1979        pw.println(" mPreferredApn=" + mPreferredApn);
1980        pw.println(" mIsPsRestricted=" + mIsPsRestricted);
1981        pw.println(" mIsDisposed=" + mIsDisposed);
1982        pw.println(" mIntentReceiver=" + mIntentReceiver);
1983        pw.println(" mDataRoamingSettingObserver=" + mDataRoamingSettingObserver);
1984        pw.flush();
1985    }
1986}
1987