summaryrefslogtreecommitdiffstats
path: root/src/plugins/bearer/icd/qicdengine.cpp
blob: c793e52cf9f828831d34c49ad9239ca41025b408 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qicdengine.h"
#include "qnetworksession_impl.h"

#include <wlancond.h>
#include <wlan-utils.h>
#include <iapconf.h>
#include <iapmonitor.h>

#ifndef QT_NO_BEARERMANAGEMENT

QT_BEGIN_NAMESPACE

IcdNetworkConfigurationPrivate::IcdNetworkConfigurationPrivate()
:   service_attrs(0), network_attrs(0)
{
}

IcdNetworkConfigurationPrivate::~IcdNetworkConfigurationPrivate()
{
}

QString IcdNetworkConfigurationPrivate::bearerTypeName() const
{
    QMutexLocker locker(&mutex);

    return iap_type;
}

/******************************************************************************/
/** IapAddTimer specific                                                      */
/******************************************************************************/

/* The IapAddTimer is a helper class that makes sure we update
 * the configuration only after all db additions to certain
 * iap are finished (after a certain timeout)
 */
class _IapAddTimer : public QObject
{
    Q_OBJECT

public:
    _IapAddTimer() {}
    ~_IapAddTimer()
    {
	if (timer.isActive()) {
	    QObject::disconnect(&timer, SIGNAL(timeout()), this, SLOT(timeout()));
	    timer.stop();
	}
    }

    void add(QString& iap_id, QIcdEngine *d);

    QString iap_id;
    QTimer timer;
    QIcdEngine *d;

public Q_SLOTS:
    void timeout();
};


void _IapAddTimer::add(QString& id, QIcdEngine *d_ptr)
{
    iap_id = id;
    d = d_ptr;

    if (timer.isActive()) {
	QObject::disconnect(&timer, SIGNAL(timeout()), this, SLOT(timeout()));
	timer.stop();
    }
    timer.setSingleShot(true);
    QObject::connect(&timer, SIGNAL(timeout()), this, SLOT(timeout()));
    timer.start(1500);
}


void _IapAddTimer::timeout()
{
    d->addConfiguration(iap_id);
}


class IapAddTimer {
    QHash<QString, _IapAddTimer* > timers;

public:
    IapAddTimer() {}
    ~IapAddTimer() {}

    void add(QString& iap_id, QIcdEngine *d);
    void del(QString& iap_id);
    void removeAll();
};


void IapAddTimer::removeAll()
{
    QHashIterator<QString, _IapAddTimer* > i(timers);
    while (i.hasNext()) {
	i.next();
	_IapAddTimer *t = i.value();
	delete t;
    }
    timers.clear();
}


void IapAddTimer::add(QString& iap_id, QIcdEngine *d)
{
    if (timers.contains(iap_id)) {
	_IapAddTimer *iap = timers.value(iap_id);
	iap->add(iap_id, d);
    } else {
	_IapAddTimer *iap = new _IapAddTimer;
	iap->add(iap_id, d);
	timers.insert(iap_id, iap);
    }
}

void IapAddTimer::del(QString& iap_id)
{
    if (timers.contains(iap_id)) {
	_IapAddTimer *iap = timers.take(iap_id);
	delete iap;
    }
}

/******************************************************************************/
/** IAPMonitor specific                                                       */
/******************************************************************************/

class IapMonitor : public Maemo::IAPMonitor
{
public:
    IapMonitor() : first_call(true) { }

    void setup(QIcdEngine *d);
    void cleanup();

protected:
    void iapAdded(const QString &iapId);
    void iapRemoved(const QString &iapId);

private:
    bool first_call;

    QIcdEngine *d;
    IapAddTimer timers;
};

void IapMonitor::setup(QIcdEngine *d_ptr)
{
    if (first_call) {
	d = d_ptr;
	first_call = false;
    }
}


void IapMonitor::cleanup()
{
    if (!first_call) {
	timers.removeAll();
	first_call = true;
    }
}


void IapMonitor::iapAdded(const QString &iap_id)
{
    /* We cannot know when the IAP is fully added to db, so a timer is
     * installed instead. When the timer expires we hope that IAP is added ok.
     */
    QString id = iap_id;
    timers.add(id, d);
}


void IapMonitor::iapRemoved(const QString &iap_id)
{
    QString id = iap_id;
    d->deleteConfiguration(id);
}


/******************************************************************************/
/** QIcdEngine implementation                                                 */
/******************************************************************************/

QIcdEngine::QIcdEngine(QObject *parent)
:   QBearerEngine(parent), iapMonitor(0), m_dbusInterface(0), m_icdServiceWatcher(0),
    firstUpdate(true), m_scanGoingOn(false)
{
}

QIcdEngine::~QIcdEngine()
{
    cleanup();
    delete iapMonitor;
}

QNetworkConfigurationManager::Capabilities QIcdEngine::capabilities() const
{
    return QNetworkConfigurationManager::CanStartAndStopInterfaces |
           QNetworkConfigurationManager::DataStatistics |
           QNetworkConfigurationManager::ForcedRoaming |
           QNetworkConfigurationManager::NetworkSessionRequired;
}

bool QIcdEngine::ensureDBusConnection()
{
    if (m_dbusInterface)
        return true;

    // Setup DBus Interface for ICD
    m_dbusInterface = new QDBusInterface(ICD_DBUS_API_INTERFACE,
                                         ICD_DBUS_API_PATH,
                                         ICD_DBUS_API_INTERFACE,
                                         QDBusConnection::systemBus(),
                                         this);

    if (!m_dbusInterface->isValid()) {
        delete m_dbusInterface;
        m_dbusInterface = 0;

        if (!m_icdServiceWatcher) {
            m_icdServiceWatcher = new QDBusServiceWatcher(ICD_DBUS_API_INTERFACE,
                                                          QDBusConnection::systemBus(),
                                                          QDBusServiceWatcher::WatchForOwnerChange,
                                                          this);

            connect(m_icdServiceWatcher, SIGNAL(serviceOwnerChanged(QString,QString,QString)),
                    this, SLOT(icdServiceOwnerChanged(QString,QString,QString)));
        }

        return false;
    }

    connect(&m_scanTimer, SIGNAL(timeout()), this, SLOT(finishAsyncConfigurationUpdate()));
    m_scanTimer.setSingleShot(true);

    /* Turn on IAP state monitoring */
    startListeningStateSignalsForAllConnections();

    /* Turn on IAP add/remove monitoring */
    iapMonitor = new IapMonitor;
    iapMonitor->setup(this);

    /* We create a default configuration which is a pseudo config */
    QNetworkConfigurationPrivate *cpPriv = new IcdNetworkConfigurationPrivate;
    cpPriv->name = "UserChoice";
    cpPriv->state = QNetworkConfiguration::Discovered;
    cpPriv->isValid = true;
    cpPriv->id = OSSO_IAP_ANY;
    cpPriv->type = QNetworkConfiguration::UserChoice;
    cpPriv->purpose = QNetworkConfiguration::UnknownPurpose;
    cpPriv->roamingSupported = false;

    QNetworkConfigurationPrivatePointer ptr(cpPriv);
    userChoiceConfigurations.insert(cpPriv->id, ptr);

    doRequestUpdate();

    getIcdInitialState();

    return true;
}

void QIcdEngine::initialize()
{
    QMutexLocker locker(&mutex);

    if (!ensureDBusConnection()) {
        locker.unlock();
        emit updateCompleted();
        locker.relock();
    }
}

static inline QString network_attrs_to_security(uint network_attrs)
{
    uint cap = 0;
    nwattr2cap(network_attrs, &cap); /* from libicd-network-wlan-dev.h */
    if (cap & WLANCOND_OPEN)
        return "NONE";
    else if (cap & WLANCOND_WEP)
        return "WEP";
    else if (cap & WLANCOND_WPA_PSK)
        return "WPA_PSK";
    else if (cap & WLANCOND_WPA_EAP)
        return "WPA_EAP";
    return "";
}


struct SSIDInfo {
    QString iap_id;
    QString wlan_security;
};


void QIcdEngine::deleteConfiguration(const QString &iap_id)
{
    QMutexLocker locker(&mutex);

    /* Called when IAPs are deleted in db, in this case we do not scan
     * or read all the IAPs from db because it might take too much power
     * (multiple applications would need to scan and read all IAPs from db)
     */
    QNetworkConfigurationPrivatePointer ptr = accessPointConfigurations.take(iap_id);
    if (ptr) {
#ifdef BEARER_MANAGEMENT_DEBUG
        qDebug() << "IAP" << iap_id << "was removed from storage.";
#endif

        locker.unlock();
        emit configurationRemoved(ptr);
    } else {
#ifdef BEARER_MANAGEMENT_DEBUG
        qDebug("IAP: %s, already missing from the known list", iap_id.toAscii().data());
#endif
    }
}


static quint32 getNetworkAttrs(bool is_iap_id,
                               const QString &iap_id,
                               const QString &iap_type,
                               QString security_method)
{
    guint network_attr = 0;
    dbus_uint32_t cap = 0;

    if (iap_type == "WLAN_INFRA")
    cap |= WLANCOND_INFRA;
    else if (iap_type == "WLAN_ADHOC")
    cap |= WLANCOND_ADHOC;

    if (security_method.isEmpty() && (cap & (WLANCOND_INFRA | WLANCOND_ADHOC))) {
    Maemo::IAPConf saved_ap(iap_id);
    security_method = saved_ap.value("wlan_security").toString();
    }

    if (!security_method.isEmpty()) {
    if (security_method == "WEP")
        cap |= WLANCOND_WEP;
    else if (security_method == "WPA_PSK")
        cap |= WLANCOND_WPA_PSK;
    else if (security_method == "WPA_EAP")
        cap |= WLANCOND_WPA_EAP;
    else if (security_method == "NONE")
        cap |= WLANCOND_OPEN;

    if (cap & (WLANCOND_WPA_PSK | WLANCOND_WPA_EAP)) {
        Maemo::IAPConf saved_iap(iap_id);
        bool wpa2_only = saved_iap.value("EAP_wpa2_only_mode").toBool();
        if (wpa2_only) {
        cap |= WLANCOND_WPA2;
        }
    }
    }

    cap2nwattr(cap, &network_attr);
    if (is_iap_id)
    network_attr |= ICD_NW_ATTR_IAPNAME;

    return quint32(network_attr);
}


void QIcdEngine::addConfiguration(QString& iap_id)
{
    // Note: When new IAP is created, this function gets called multiple times
    //       in a row.
    //       For example: Empty type & name for WLAN was stored into newly
    //                    created IAP data in gconf when this function gets
    //                    called for the first time.
    //                    WLAN type & name are updated into IAP data in gconf
    //                    as soon as WLAN connection is up and running.
    //                    => And this function gets called again.

    QMutexLocker locker(&mutex);

    if (!accessPointConfigurations.contains(iap_id)) {
	Maemo::IAPConf saved_iap(iap_id);
        QString iap_type = saved_iap.value("type").toString();
        QString iap_name = saved_iap.value("name").toString();
        QByteArray ssid = saved_iap.value("wlan_ssid").toByteArray();
        if (!iap_type.isEmpty() && !iap_name.isEmpty()) {
            // Check if new IAP is actually Undefined WLAN configuration
            // Note: SSID is used as an iap id for Undefined WLAN configurations
            //       => configuration must be searched using SSID
            if (!ssid.isEmpty() && accessPointConfigurations.contains(ssid)) {
                QNetworkConfigurationPrivatePointer ptr = accessPointConfigurations.take(ssid);
                if (ptr) {
                    ptr->mutex.lock();
                    ptr->id = iap_id;
                    toIcdConfig(ptr)->iap_type = iap_type;
                    ptr->bearerType = bearerTypeFromIapType(iap_type);
                    toIcdConfig(ptr)->network_attrs = getNetworkAttrs(true, iap_id, iap_type, QString());
                    toIcdConfig(ptr)->network_id = ssid;
                    toIcdConfig(ptr)->service_id = saved_iap.value("service_id").toString();
                    toIcdConfig(ptr)->service_type = saved_iap.value("service_type").toString();
                    if (m_onlineIapId == iap_id) {
                        ptr->state = QNetworkConfiguration::Active;
                    } else {
                        ptr->state = QNetworkConfiguration::Defined;
                    }
                    ptr->mutex.unlock();
                    accessPointConfigurations.insert(iap_id, ptr);

                    locker.unlock();
                    emit configurationChanged(ptr);
                    locker.relock();
                }
            } else {
                IcdNetworkConfigurationPrivate *cpPriv = new IcdNetworkConfigurationPrivate;
                cpPriv->name = saved_iap.value("name").toString();
                if (cpPriv->name.isEmpty())
                    cpPriv->name = iap_id;
                cpPriv->isValid = true;
                cpPriv->id = iap_id;
                cpPriv->iap_type = iap_type;
                cpPriv->bearerType = bearerTypeFromIapType(iap_type);
                cpPriv->network_attrs = getNetworkAttrs(true, iap_id, iap_type, QString());
                cpPriv->service_id = saved_iap.value("service_id").toString();
                cpPriv->service_type = saved_iap.value("service_type").toString();
                if (iap_type.startsWith(QLatin1String("WLAN"))) {
                    QByteArray ssid = saved_iap.value("wlan_ssid").toByteArray();
                    if (ssid.isEmpty()) {
                        qWarning() << "Cannot get ssid for" << iap_id;
                    }
                    cpPriv->network_id = ssid;
                }
                cpPriv->type = QNetworkConfiguration::InternetAccessPoint;
                if (m_onlineIapId == iap_id) {
                    cpPriv->state = QNetworkConfiguration::Active;
                } else {
                    cpPriv->state = QNetworkConfiguration::Defined;
                }

                QNetworkConfigurationPrivatePointer ptr(cpPriv);
                accessPointConfigurations.insert(iap_id, ptr);

#ifdef BEARER_MANAGEMENT_DEBUG
                qDebug("IAP: %s, name: %s, added to known list", iap_id.toAscii().data(), cpPriv->name.toAscii().data());
#endif
                locker.unlock();
                emit configurationAdded(ptr);
                locker.relock();
            }
        } else {
            qWarning("IAP %s does not have \"type\" or \"name\" fields defined, skipping this IAP.", iap_id.toAscii().data());
        }
    } else {
#ifdef BEARER_MANAGEMENT_DEBUG
	qDebug() << "IAP" << iap_id << "already in db.";
#endif

	/* Check if the data in db changed and update configuration accordingly
	 */
    QNetworkConfigurationPrivatePointer ptr = accessPointConfigurations.value(iap_id);
	if (ptr) {
	    Maemo::IAPConf changed_iap(iap_id);
	    QString iap_type = changed_iap.value("type").toString();
	    bool update_needed = false; /* if IAP type or ssid changed, we need to change the state */

        QMutexLocker configLocker(&ptr->mutex);

	    toIcdConfig(ptr)->network_attrs = getNetworkAttrs(true, iap_id, iap_type, QString());
	    toIcdConfig(ptr)->service_id = changed_iap.value("service_id").toString();
	    toIcdConfig(ptr)->service_type = changed_iap.value("service_type").toString();

	    if (!iap_type.isEmpty()) {
            ptr->name = changed_iap.value("name").toString();
            if (ptr->name.isEmpty())
                ptr->name = iap_id;
            ptr->isValid = true;
            if (toIcdConfig(ptr)->iap_type != iap_type) {
                toIcdConfig(ptr)->iap_type = iap_type;
                ptr->bearerType = bearerTypeFromIapType(iap_type);
                update_needed = true;
            }
            if (iap_type.startsWith(QLatin1String("WLAN"))) {
                QByteArray ssid = changed_iap.value("wlan_ssid").toByteArray();
                if (ssid.isEmpty()) {
                    qWarning() << "Cannot get ssid for" << iap_id;
                }
                if (toIcdConfig(ptr)->network_id != ssid) {
                    toIcdConfig(ptr)->network_id = ssid;
                    update_needed = true;
                }
            }
	    }

	    if (update_needed) {
            ptr->type = QNetworkConfiguration::InternetAccessPoint;
            if (m_onlineIapId == iap_id) {
                if (ptr->state < QNetworkConfiguration::Active) {
                    ptr->state = QNetworkConfiguration::Active;

                    configLocker.unlock();
                    locker.unlock();
                    emit configurationChanged(ptr);
                    locker.relock();
                }
            } else if (ptr->state < QNetworkConfiguration::Defined) {
                ptr->state = QNetworkConfiguration::Defined;

                configLocker.unlock();
                locker.unlock();
                emit configurationChanged(ptr);
                locker.relock();
            }
	    }
	} else {
	    qWarning("Cannot find IAP %s from current configuration although it should be there.", iap_id.toAscii().data());
	}
    }
}

void QIcdEngine::doRequestUpdate(QList<Maemo::IcdScanResult> scanned)
{
    /* Contains all known iap_ids from storage */
    QList<QString> knownConfigs = accessPointConfigurations.keys();

    /* Contains all known WLAN network ids (like ssid) from storage */
    QMultiHash<QByteArray, SSIDInfo* > notDiscoveredWLANConfigs;

    QList<QString> all_iaps;
    Maemo::IAPConf::getAll(all_iaps);

    foreach (const QString &iap_id, all_iaps) {
        QByteArray ssid;

        Maemo::IAPConf saved_ap(iap_id);
        bool is_temporary = saved_ap.value("temporary").toBool();
        if (is_temporary) {
#ifdef BEARER_MANAGEMENT_DEBUG
            qDebug() << "IAP" << iap_id << "is temporary, skipping it.";
#endif
            continue;
        }

        QString iap_type = saved_ap.value("type").toString();
        if (iap_type.startsWith(QLatin1String("WLAN"))) {
            ssid = saved_ap.value("wlan_ssid").toByteArray();
            if (ssid.isEmpty())
                continue;

            QString security_method = saved_ap.value("wlan_security").toString();
            SSIDInfo *info = new SSIDInfo;
            info->iap_id = iap_id;
            info->wlan_security = security_method;
                notDiscoveredWLANConfigs.insert(ssid, info);
        } else if (iap_type.isEmpty()) {
            continue;
        } else {
#ifdef BEARER_MANAGEMENT_DEBUG
            qDebug() << "IAP" << iap_id << "network type is" << iap_type;
#endif
            ssid.clear();
        }

        if (!accessPointConfigurations.contains(iap_id)) {
            IcdNetworkConfigurationPrivate *cpPriv = new IcdNetworkConfigurationPrivate;

            cpPriv->name = saved_ap.value("name").toString();
            if (cpPriv->name.isEmpty()) {
                if (!ssid.isEmpty() && ssid.size() > 0)
                    cpPriv->name = ssid.data();
                else
                    cpPriv->name = iap_id;
            }
            cpPriv->isValid = true;
            cpPriv->id = iap_id;
            cpPriv->network_id = ssid;
            cpPriv->network_attrs = getNetworkAttrs(true, iap_id, iap_type, QString());
            cpPriv->iap_type = iap_type;
            cpPriv->bearerType = bearerTypeFromIapType(iap_type);
            cpPriv->service_id = saved_ap.value("service_id").toString();
            cpPriv->service_type = saved_ap.value("service_type").toString();
            cpPriv->type = QNetworkConfiguration::InternetAccessPoint;
            cpPriv->state = QNetworkConfiguration::Defined;

            QNetworkConfigurationPrivatePointer ptr(cpPriv);
            accessPointConfigurations.insert(iap_id, ptr);

            mutex.unlock();
            emit configurationAdded(ptr);
            mutex.lock();

#ifdef BEARER_MANAGEMENT_DEBUG
            qDebug("IAP: %s, name: %s, ssid: %s, added to known list",
                   iap_id.toAscii().data(), ptr->name.toAscii().data(),
                   !ssid.isEmpty() ? ssid.data() : "-");
#endif
        } else {
            knownConfigs.removeOne(iap_id);
#ifdef BEARER_MANAGEMENT_DEBUG
            qDebug("IAP: %s, ssid: %s, already exists in the known list",
                   iap_id.toAscii().data(), !ssid.isEmpty() ? ssid.data() : "-");
#endif
        }
    }

    /* This is skipped in the first update as scanned size is zero */
    if (!scanned.isEmpty()) {
        for (int i=0; i<scanned.size(); ++i) {
            const Maemo::IcdScanResult ap = scanned.at(i);

            if (ap.scan.network_attrs & ICD_NW_ATTR_IAPNAME) {
                /* The network_id is IAP id, so the IAP is a known one */
                QString iapid = ap.scan.network_id.data();
                QNetworkConfigurationPrivatePointer ptr = accessPointConfigurations.value(iapid);
                if (ptr) {
                    bool changed = false;

                    ptr->mutex.lock();

                    if (!ptr->isValid) {
                        ptr->isValid = true;
                        changed = true;
                    }

                    /* If this config is the current active one, we do not set it
                     * to discovered.
                     */
                    if ((ptr->state != QNetworkConfiguration::Discovered) &&
                        (ptr->state != QNetworkConfiguration::Active)) {
                        ptr->state = QNetworkConfiguration::Discovered;
                        changed = true;
                    }

                    toIcdConfig(ptr)->network_attrs = ap.scan.network_attrs;
                    toIcdConfig(ptr)->service_id = ap.scan.service_id;
                    toIcdConfig(ptr)->service_type = ap.scan.service_type;
                    toIcdConfig(ptr)->service_attrs = ap.scan.service_attrs;

#ifdef BEARER_MANAGEMENT_DEBUG
                    qDebug("IAP: %s, ssid: %s, discovered",
                           iapid.toAscii().data(), toIcdConfig(ptr)->network_id.data());
#endif

                    ptr->mutex.unlock();

                    if (changed) {
                        mutex.unlock();
                        emit configurationChanged(ptr);
                        mutex.lock();
                    }

                    if (!ap.scan.network_type.startsWith(QLatin1String("WLAN")))
                        continue; // not a wlan AP

                    /* Remove scanned AP from discovered WLAN configurations so that we can
                     * emit configurationRemoved signal later
                     */
                    ptr->mutex.lock();
                    QList<SSIDInfo* > known_iaps = notDiscoveredWLANConfigs.values(toIcdConfig(ptr)->network_id);
rescan_list:
                    if (!known_iaps.isEmpty()) {
                        for (int k=0; k<known_iaps.size(); ++k) {
                            SSIDInfo *iap = known_iaps.at(k);

                            if (iap->wlan_security ==
                                network_attrs_to_security(ap.scan.network_attrs)) {
                                /* Remove IAP from the list */
                                notDiscoveredWLANConfigs.remove(toIcdConfig(ptr)->network_id, iap);
#ifdef BEARER_MANAGEMENT_DEBUG
                                qDebug() << "Removed IAP" << iap->iap_id << "from unknown config";
#endif
                                known_iaps.removeAt(k);
                                delete iap;
                                goto rescan_list;
                            }
                        }
                    }
                    ptr->mutex.unlock();
                }
            } else {
                /* Non saved access point data */
                QByteArray scanned_ssid = ap.scan.network_id;
                if (!accessPointConfigurations.contains(scanned_ssid)) {
                    IcdNetworkConfigurationPrivate *cpPriv = new IcdNetworkConfigurationPrivate;
                    QString hrs = scanned_ssid.data();

                    cpPriv->name = ap.network_name.isEmpty() ? hrs : ap.network_name;
                    cpPriv->isValid = true;
                    cpPriv->id = scanned_ssid.data();  // Note: id is now ssid, it should be set to IAP id if the IAP is saved
                    cpPriv->network_id = scanned_ssid;
                    cpPriv->iap_type = ap.scan.network_type;
                    cpPriv->bearerType = bearerTypeFromIapType(cpPriv->iap_type);
                    cpPriv->network_attrs = ap.scan.network_attrs;
                    cpPriv->service_id = ap.scan.service_id;
                    cpPriv->service_type = ap.scan.service_type;
                    cpPriv->service_attrs = ap.scan.service_attrs;

                    cpPriv->type = QNetworkConfiguration::InternetAccessPoint;
                    cpPriv->state = QNetworkConfiguration::Undefined;

#ifdef BEARER_MANAGEMENT_DEBUG
                    qDebug() << "IAP with network id" << cpPriv->id << "was found in the scan.";
#endif

                    QNetworkConfigurationPrivatePointer ptr(cpPriv);
                    accessPointConfigurations.insert(ptr->id, ptr);

                    mutex.unlock();
                    emit configurationAdded(ptr);
                    mutex.lock();
                } else {
                    knownConfigs.removeOne(scanned_ssid);
                }
            }
        }
    }

    if (!firstUpdate) {
        // Update Defined status to all defined WLAN IAPs which
        // could not be found when access points were scanned
        QHashIterator<QByteArray, SSIDInfo* > i(notDiscoveredWLANConfigs);
        while (i.hasNext()) {
            i.next();
            SSIDInfo *iap = i.value();
            QString iap_id = iap->iap_id;
            //qDebug() << i.key() << ": " << iap_id;

            QNetworkConfigurationPrivatePointer ptr = accessPointConfigurations.value(iap_id);
            if (ptr) {
                QMutexLocker configLocker(&ptr->mutex);

                // WLAN AccessPoint configuration could not be Discovered
                // => Make sure that configuration state is Defined
                if (ptr->state > QNetworkConfiguration::Defined) {
                    ptr->state = QNetworkConfiguration::Defined;

                    configLocker.unlock();
                    mutex.unlock();
                    emit configurationChanged(ptr);
                    mutex.lock();
                }
            }
        }

        /* Remove non existing iaps since last update */
        foreach (const QString &oldIface, knownConfigs) {
            QNetworkConfigurationPrivatePointer ptr = accessPointConfigurations.take(oldIface);
            if (ptr) {
                mutex.unlock();
                emit configurationRemoved(ptr);
                mutex.lock();
                //if we would have SNAP support we would have to remove the references
                //from existing ServiceNetworks to the removed access point configuration
            }
        }
    }

    QMutableHashIterator<QByteArray, SSIDInfo* > i(notDiscoveredWLANConfigs);
    while (i.hasNext()) {
        i.next();
        SSIDInfo *iap = i.value();
        delete iap;
        i.remove();
    }

    if (!firstUpdate) {
        mutex.unlock();
        emit updateCompleted();
        mutex.lock();
    }

    if (firstUpdate)
        firstUpdate = false;
}

QNetworkConfigurationPrivatePointer QIcdEngine::defaultConfiguration()
{
    QMutexLocker locker(&mutex);

    if (!ensureDBusConnection())
        return QNetworkConfigurationPrivatePointer();

    // Here we just return [ANY] request to icd and let the icd decide which IAP to connect.
    return userChoiceConfigurations.value(OSSO_IAP_ANY);
}

void QIcdEngine::startListeningStateSignalsForAllConnections()
{
    // Start listening ICD_DBUS_API_STATE_SIG signals
    m_dbusInterface->connection().connect(ICD_DBUS_API_INTERFACE,
                                          ICD_DBUS_API_PATH,
                                          ICD_DBUS_API_INTERFACE,
                                          ICD_DBUS_API_STATE_SIG,
                                          this, SLOT(connectionStateSignalsSlot(QDBusMessage)));
}

void QIcdEngine::getIcdInitialState()
{
    /* Instead of requesting ICD status asynchronously, we ask it synchronously.
     * It ensures that we always get right icd status BEFORE initialize() ends.
     * If not, initialize()  might end before we got icd status and
     * QNetworkConfigurationManager::updateConfigurations()
     * call from user might also end before receiving icd status.
     * In such case, we come up to a bug:
     * QNetworkConfigurationManagerPrivate::isOnline() will be false even
     * if we are connected.
     */
    Maemo::Icd icd;
    QList<Maemo::IcdStateResult> state_results;
    QNetworkConfigurationPrivatePointer ptr;

    if (icd.state(state_results) && !state_results.isEmpty()) {

        if (!(state_results.first().params.network_attrs == 0 &&
              state_results.first().params.network_id.isEmpty())) {

            switch (state_results.first().state) {
            case ICD_STATE_CONNECTED:
                m_onlineIapId = state_results.first().params.network_id;

                ptr = accessPointConfigurations.value(m_onlineIapId);
                if (ptr) {
                    QMutexLocker configLocker(&ptr->mutex);
                    ptr->state = QNetworkConfiguration::Active;
                    configLocker.unlock();

                    mutex.unlock();
                    emit configurationChanged(ptr);
                    mutex.lock();
                }
                break;
            default:
                break;
            }
        }
    }
}

void QIcdEngine::connectionStateSignalsSlot(QDBusMessage msg)
{
    QMutexLocker locker(&mutex);

    QList<QVariant> arguments = msg.arguments();
    if (arguments[1].toUInt() != 0 || arguments.count() < 8) {
        return;
    }

    QString iapid = arguments[5].toByteArray().data();
    uint icd_connection_state = arguments[7].toUInt();

    switch (icd_connection_state) {
    case ICD_STATE_CONNECTED:
        {
        QNetworkConfigurationPrivatePointer ptr = accessPointConfigurations.value(iapid);
        if (ptr) {
            QMutexLocker configLocker(&ptr->mutex);

            ptr->type = QNetworkConfiguration::InternetAccessPoint;
            if (ptr->state != QNetworkConfiguration::Active) {
                ptr->state = QNetworkConfiguration::Active;

                configLocker.unlock();
                locker.unlock();
                emit configurationChanged(ptr);
                locker.relock();

                m_onlineIapId = iapid;
            }
        } else {
            // This gets called when new WLAN IAP is created using Connection dialog
            // At this point Undefined WLAN configuration has SSID as iap id
            // => Because of that configuration can not be found from
            //    accessPointConfigurations using correct iap id
            m_onlineIapId = iapid;
        }
        break;
        }
    case ICD_STATE_DISCONNECTED:
        {
        QNetworkConfigurationPrivatePointer ptr = accessPointConfigurations.value(iapid);
        if (ptr) {
            QMutexLocker configLocker(&ptr->mutex);

            ptr->type = QNetworkConfiguration::InternetAccessPoint;
            if (ptr->state == QNetworkConfiguration::Active) {
                ptr->state = QNetworkConfiguration::Discovered;

                configLocker.unlock();
                locker.unlock();
                emit configurationChanged(ptr);
                locker.relock();

                // Note: If ICD switches used IAP from one to another:
                //       1) new IAP is reported to be online first
                //       2) old IAP is reported to be offline then
                // => Device can be reported to be offline only
                //    if last known online IAP is reported to be disconnected
                if (iapid == m_onlineIapId) {
                    // It's known that there is only one global ICD connection
                    // => Because ICD state was reported to be DISCONNECTED, Device is offline
                    m_onlineIapId.clear();
                }
            }
        } else {
            // Disconnected IAP was not found from accessPointConfigurations
            // => Reason: Online IAP was removed which resulted ICD to disconnect
            if (iapid == m_onlineIapId) {
                // It's known that there is only one global ICD connection
                // => Because ICD state was reported to be DISCONNECTED, Device is offline
                m_onlineIapId.clear();
            }
        }
        break;
        }
    default:
        break;
    }
    
    locker.unlock();
    emit iapStateChanged(iapid, icd_connection_state);
    locker.relock();
}

void QIcdEngine::icdServiceOwnerChanged(const QString &serviceName, const QString &oldOwner,
                                        const QString &newOwner)
{
    Q_UNUSED(serviceName);
    Q_UNUSED(oldOwner);

    QMutexLocker locker(&mutex);

    if (newOwner.isEmpty()) {
        // Disconnected from ICD, remove all configurations
        cleanup();
        delete iapMonitor;
        iapMonitor = 0;
        delete m_dbusInterface;
        m_dbusInterface = 0;

        QMutableHashIterator<QString, QNetworkConfigurationPrivatePointer> i(accessPointConfigurations);
        while (i.hasNext()) {
            i.next();

            QNetworkConfigurationPrivatePointer ptr = i.value();
            i.remove();

            locker.unlock();
            emit configurationRemoved(ptr);
            locker.relock();
        }

        userChoiceConfigurations.clear();
    } else {
        // Connected to ICD ensure connection.
        ensureDBusConnection();
    }
}

void QIcdEngine::requestUpdate()
{
    QMutexLocker locker(&mutex);

    if (!ensureDBusConnection()) {
        locker.unlock();
        emit updateCompleted();
        locker.relock();
        return;
    }

    if (m_scanGoingOn)
        return;

    m_scanGoingOn = true;

    m_dbusInterface->connection().connect(ICD_DBUS_API_INTERFACE,
                                          ICD_DBUS_API_PATH,
                                          ICD_DBUS_API_INTERFACE,
                                          ICD_DBUS_API_SCAN_SIG,
                                          this, SLOT(asyncUpdateConfigurationsSlot(QDBusMessage)));

    QDBusMessage msg = m_dbusInterface->call(ICD_DBUS_API_SCAN_REQ,
                                             (uint)ICD_SCAN_REQUEST_ACTIVE);
    m_typesToBeScanned = msg.arguments()[0].value<QStringList>();
    m_scanTimer.start(ICD_SHORT_SCAN_TIMEOUT);
}

void QIcdEngine::cancelAsyncConfigurationUpdate()
{
    if (!ensureDBusConnection())
        return;

    if (!m_scanGoingOn)
        return;

    m_scanGoingOn = false;

    if (m_scanTimer.isActive())
        m_scanTimer.stop();

    m_dbusInterface->connection().disconnect(ICD_DBUS_API_INTERFACE,
                                             ICD_DBUS_API_PATH,
                                             ICD_DBUS_API_INTERFACE,
                                             ICD_DBUS_API_SCAN_SIG,
                                             this, SLOT(asyncUpdateConfigurationsSlot(QDBusMessage)));

    // Stop scanning rounds by calling ICD_DBUS_API_SCAN_CANCEL
    // <=> If ICD_DBUS_API_SCAN_CANCEL is not called, new scanning round will
    //     be started after the module scan timeout.
    m_dbusInterface->call(ICD_DBUS_API_SCAN_CANCEL);
}

void QIcdEngine::finishAsyncConfigurationUpdate()
{
    QMutexLocker locker(&mutex);

    cancelAsyncConfigurationUpdate();
    doRequestUpdate(m_scanResult);
    m_scanResult.clear();
}

void QIcdEngine::asyncUpdateConfigurationsSlot(QDBusMessage msg)
{
    QMutexLocker locker(&mutex);

    QList<QVariant> arguments = msg.arguments();
    uint icd_scan_status = arguments.takeFirst().toUInt();
    if (icd_scan_status == ICD_SCAN_COMPLETE) {
        m_typesToBeScanned.removeOne(arguments[6].toString());
        if (!m_typesToBeScanned.count()) {
            locker.unlock();
            finishAsyncConfigurationUpdate();
            locker.relock();
        }
    } else {
        Maemo::IcdScanResult scanResult;
        scanResult.status = icd_scan_status;
        scanResult.timestamp = arguments.takeFirst().toUInt();
        scanResult.scan.service_type = arguments.takeFirst().toString();
        scanResult.service_name = arguments.takeFirst().toString();
        scanResult.scan.service_attrs = arguments.takeFirst().toUInt();
        scanResult.scan.service_id = arguments.takeFirst().toString();
        scanResult.service_priority = arguments.takeFirst().toInt();
        scanResult.scan.network_type = arguments.takeFirst().toString();
        scanResult.network_name = arguments.takeFirst().toString();
        scanResult.scan.network_attrs = arguments.takeFirst().toUInt();
        scanResult.scan.network_id = arguments.takeFirst().toByteArray();
        scanResult.network_priority = arguments.takeFirst().toInt();
        scanResult.signal_strength = arguments.takeFirst().toInt();
        scanResult.station_id = arguments.takeFirst().toString();
        scanResult.signal_dB = arguments.takeFirst().toInt();

        m_scanResult.append(scanResult);
    }
}

void QIcdEngine::cleanup()
{
    if (m_scanGoingOn) {
        m_scanTimer.stop();
        m_dbusInterface->call(ICD_DBUS_API_SCAN_CANCEL);
    }
    if (iapMonitor)
        iapMonitor->cleanup();
}

bool QIcdEngine::hasIdentifier(const QString &id)
{
    QMutexLocker locker(&mutex);

    return accessPointConfigurations.contains(id) ||
           snapConfigurations.contains(id) ||
           userChoiceConfigurations.contains(id);
}

QNetworkSessionPrivate *QIcdEngine::createSessionBackend()
{
    return new QNetworkSessionPrivateImpl(this);
}

#include "qicdengine.moc"

QT_END_NAMESPACE

#endif // QT_NO_BEARERMANAGEMENT