ostinato/common/gmp.cpp

/*
Copyright (C) 2010 Srivats P.

This file is part of "Ostinato"

This is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>
*/

#include "gmp.h"

#include <QHeaderView>
#include <qendian.h>

QHash<int, int> GmpProtocol::frameFieldCountMap;

GmpConfigForm::GmpConfigForm(QWidget *parent)
    : QWidget(parent)
{
    setupUi(this);

    auxData->setValidator(new QRegExpValidator(
                QRegExp("[0-9A-Fa-f]*"), this));
}

GmpConfigForm::~GmpConfigForm()
{
}

void GmpConfigForm::update()
{
    // save the current group Record by simulating a currentItemChanged()
    on_groupList_currentItemChanged(groupList->currentItem(), 
            groupList->currentItem());
}

void GmpConfigForm::on_groupMode_currentIndexChanged(int index)
{
    bool disabled = (index == 0);

    groupCount->setDisabled(disabled);
    groupPrefix->setDisabled(disabled);
}

void GmpConfigForm::on_addSource_clicked()
{
    QListWidgetItem *item=new QListWidgetItem(_defaultSourceIp);
    item->setFlags(item->flags() | Qt::ItemIsEditable);
    sourceList->insertItem(sourceList->currentRow(), item);

    if (!overrideSourceCount->isChecked())
        sourceCount->setText(QString().setNum(sourceList->count()));
}

void GmpConfigForm::on_deleteSource_clicked()
{
    delete sourceList->takeItem(sourceList->currentRow());

    if (!overrideSourceCount->isChecked())
        sourceCount->setText(QString().setNum(sourceList->count()));
}

void GmpConfigForm::on_addGroupRecord_clicked()
{
    OstProto::Gmp::GroupRecord defRec;
    QVariantMap grpRec;
    QListWidgetItem *item = new QListWidgetItem;

    grpRec["groupRecordType"] = defRec.type();
    grpRec["groupRecordAddress"] = _defaultGroupIp;
    grpRec["overrideGroupRecordSourceCount"] =defRec.is_override_source_count();
    grpRec["groupRecordSourceCount"] = defRec.source_count();
    grpRec["groupRecordSourceList"] = QStringList();
    grpRec["overrideAuxDataLength"] = defRec.is_override_aux_data_length();
    grpRec["auxDataLength"] = defRec.aux_data_length();
    grpRec["auxData"] = QByteArray().append(
            QString().fromStdString(defRec.aux_data()));

    item->setData(Qt::UserRole, grpRec);
    item->setText(QString("%1: %2")
            .arg(groupRecordType->itemText(grpRec["groupRecordType"].toInt()))
            .arg(grpRec["groupRecordAddress"].toString()));

    groupList->insertItem(groupList->currentRow(), item);

    if (!overrideGroupRecordCount->isChecked())
        groupRecordCount->setText(QString().setNum(groupList->count()));
}

void GmpConfigForm::on_deleteGroupRecord_clicked()
{
    delete groupList->takeItem(groupList->currentRow());

    if (!overrideGroupRecordCount->isChecked())
        groupRecordCount->setText(QString().setNum(groupList->count()));
}

void GmpConfigForm::on_groupList_currentItemChanged(QListWidgetItem *current,
        QListWidgetItem *previous)
{
    QVariantMap rec;
    QStringList strList;
    
    qDebug("in %s", __FUNCTION__);

    // save previous record ...
    if (previous == NULL)
        goto _load_current_record;

    rec["groupRecordType"] = groupRecordType->currentIndex();
    rec["groupRecordAddress"] = groupRecordAddress->text();
    strList.clear();
    while (groupRecordSourceList->count())
    {
        QListWidgetItem *item = groupRecordSourceList->takeItem(0);
        strList.append(item->text());
        delete item;
    }
    rec["groupRecordSourceList"] = strList;
    rec["overrideGroupRecordSourceCount"] = 
                            overrideGroupRecordSourceCount->isChecked();
    rec["groupRecordSourceCount"] = groupRecordSourceCount->text().toUInt();
    rec["overrideAuxDataLength"] = overrideAuxDataLength->isChecked();
    rec["auxDataLength"] = auxDataLength->text().toUInt();
    rec["auxData"] = QByteArray().fromHex(QByteArray().append(auxData->text()));

    previous->setData(Qt::UserRole, rec);
    previous->setText(QString("%1: %2")
            .arg(groupRecordType->itemText(rec["groupRecordType"].toInt()))
            .arg(rec["groupRecordAddress"].toString()));

_load_current_record:
    // ... and load current record
    if (current == NULL)
        goto _exit;

    rec = current->data(Qt::UserRole).toMap();

    groupRecordType->setCurrentIndex(rec["groupRecordType"].toInt());
    groupRecordAddress->setText(rec["groupRecordAddress"].toString());
    strList = rec["groupRecordSourceList"].toStringList();
    groupRecordSourceList->clear();
    foreach (QString str, strList)
    {
        QListWidgetItem *item = new QListWidgetItem(str, groupRecordSourceList);
        item->setFlags(item->flags() | Qt::ItemIsEditable);
    }
    overrideGroupRecordSourceCount->setChecked(
                        rec["overrideGroupRecordSourceCount"].toBool());
    groupRecordSourceCount->setText(QString().setNum(
                        rec["groupRecordSourceCount"].toUInt()));
    overrideAuxDataLength->setChecked(rec["overrideAuxDataLength"].toBool());
    auxDataLength->setText(QString().setNum(rec["auxDataLength"].toUInt()));
    auxData->setText(QString(rec["auxData"].toByteArray().toHex()));

_exit:
    groupRecord->setEnabled(current != NULL);
    return;
}

void GmpConfigForm::on_addGroupRecordSource_clicked()
{
    QListWidgetItem *item=new QListWidgetItem(_defaultSourceIp);
    item->setFlags(item->flags() | Qt::ItemIsEditable);
    groupRecordSourceList->insertItem(groupRecordSourceList->currentRow(),item);

    if (!overrideGroupRecordSourceCount->isChecked())
        groupRecordSourceCount->setText(QString().setNum(
                    groupRecordSourceList->count()));
}

void GmpConfigForm::on_deleteGroupRecordSource_clicked()
{
    delete groupRecordSourceList->takeItem(groupRecordSourceList->currentRow());

    if (!overrideGroupRecordSourceCount->isChecked())
        groupRecordSourceCount->setText(QString().setNum(
                    groupRecordSourceList->count()));
}

void GmpConfigForm::on_auxData_textChanged(const QString &text)
{
    // auxDataLength is in units of words and each byte is 2 chars in text()
    if (!overrideAuxDataLength->isChecked())
        auxDataLength->setText(QString().setNum((auxData->text().size()+7)/8));
}

GmpProtocol::GmpProtocol(StreamBase *stream, AbstractProtocol *parent)
    : AbstractProtocol(stream, parent)
{
    /* The configWidget is created lazily */
    configForm = NULL;
}

GmpProtocol::~GmpProtocol()
{
    delete configForm;
}

AbstractProtocol::ProtocolIdType GmpProtocol::protocolIdType() const
{
    return ProtocolIdIp;
}

int GmpProtocol::fieldCount() const
{
    return FIELD_COUNT;
}

int GmpProtocol::frameFieldCount() const
{
    int type = msgType();

    // frameFieldCountMap contains the frameFieldCounts for each
    // msgType - this is built on demand and cached for subsequent use

    // lookup if we have already cached ...
    if (frameFieldCountMap.contains(type))
        return frameFieldCountMap.value(type);

    // ... otherwise calculate and cache 
    int count = 0;
    for (int i = 0; i < FIELD_COUNT; i++)
    {
        if (fieldFlags(i).testFlag(AbstractProtocol::FrameField))
            count++;
    }
    frameFieldCountMap.insert(type, count);
    return count;
}

AbstractProtocol::FieldFlags GmpProtocol::fieldFlags(int index) const
{
    AbstractProtocol::FieldFlags flags;

    flags = AbstractProtocol::fieldFlags(index);
    flags &= ~FrameField;

    switch(index)
    {
        // Frame Fields - check against msgType()
        case kType:
        case kRsvdMrtCode:
            flags |= FrameField;
            break;
        case kChecksum:
            flags |= FrameField;
            flags |= CksumField;
            break;
        case kMldMrt:
        case kMldRsvd:
            // MLD subclass should handle suitably 
            break;

        case kGroupAddress:
            if (!isSsmReport())
                flags |= FrameField;
            break;

        case kRsvd1:
        case kSFlag:
        case kQrv:
        case kQqic:
        case kSourceCount:
        case kSources:
            if (isSsmQuery())
                flags |= FrameField;
            break;

        case kRsvd2:
        case kGroupRecordCount:
        case kGroupRecords:
            if (isSsmReport())
                flags |= FrameField;
            break;

        // Meta Fields
        case kIsOverrideChecksum:
        case kGroupMode:
        case kGroupCount:
        case kGroupPrefix:
        case kIsOverrideSourceCount:
        case kIsOverrideGroupRecordCount:
            flags |= MetaField;
            break;

        default:
            qFatal("%s: unimplemented case %d in switch", __PRETTY_FUNCTION__,
                index);
            break;
    }

    return flags;
}

QVariant GmpProtocol::fieldData(int index, FieldAttrib attrib,
        int streamIndex) const
{
    switch (index)
    {
        case kType:
        {
            uint type = data.type();

            switch(attrib)
            {
            case FieldName:            
                return QString("Type");
            case FieldValue:
                return type;
            case FieldTextValue:
                return QString("%1").arg(quint8(type));
            case FieldFrameValue:
                return QByteArray(1, quint8(type));
            default:
                break;
            }
            break;
        }
        case kRsvdMrtCode:
        {
            quint8 rsvd = 0;

            switch(attrib)
            {
            case FieldName:
                return QString("Reserved");
            case FieldValue:
                return rsvd;
            case FieldTextValue:
                return QString("%1").arg(rsvd);
            case FieldFrameValue:
                return QByteArray(1, rsvd);
            default:
                break;
            }
            break;
        }
        case kChecksum:
        {
            switch(attrib)
            {
            case FieldName:            
                return QString("Checksum");
            case FieldBitSize:
                return 16;
            default:
                break;
            }

            quint16 cksum = data.is_override_checksum() ?  
                data.checksum() : checksum(streamIndex); 

            switch(attrib)
            {
            case FieldValue:
                return cksum;
            case FieldFrameValue:
            {
                QByteArray fv;

                fv.resize(2);
                qToBigEndian(cksum, (uchar*) fv.data());
                return fv;
            }
            case FieldTextValue:
                return QString("0x%1").arg(cksum, 4, BASE_HEX, QChar('0'));
            default:
                break;
            }
            break;
        }
        case kMldMrt:
        case kMldRsvd:
            // XXX: Present only in MLD - hence handled by the mld subclass
            break;

        case kGroupAddress:
            // XXX: Handled by each subclass
            break;

        case kRsvd1:
        {
            quint8 rsvd = 0;

            switch(attrib)
            {
            case FieldName:            
                return QString("Reserved");
            case FieldValue:
                return rsvd;
            case FieldTextValue:
                return QString("%1").arg(rsvd);
            case FieldFrameValue:
                return QByteArray(1, char(rsvd));
            case FieldBitSize:
                return 4;
            default:
                break;
            }
            break;
        }
        case kSFlag:
        {
            switch(attrib)
            {
            case FieldName:            
                return QString("S Flag");
            case FieldValue:
                return data.s_flag();
            case FieldTextValue:
                return data.s_flag() ? QString("True") : QString("False");
            case FieldFrameValue:
                return QByteArray(1, char(data.s_flag()));
            case FieldBitSize:
                return 1;
            default:
                break;
            }
            break;
        }
        case kQrv:
        {
            int qrv = data.qrv() & 0x7;

            switch(attrib)
            {
            case FieldName:            
                return QString("QRV");
            case FieldValue:
                return qrv;
            case FieldTextValue:
                return QString("%1").arg(qrv);
            case FieldFrameValue:
                return QByteArray(1, char(qrv));
            case FieldBitSize:
                return 3;
            default:
                break;
            }
            break;
        }
        case kQqic:
        {
            int qqi = data.qqi();

            switch(attrib)
            {
                case FieldName:            
                    return QString("QQIC");
                case FieldValue:
                    return qqi;
                case FieldTextValue:
                    return QString("%1").arg(qqi);
                case FieldFrameValue:
                {
                    char qqicode = char(qqic(qqi));
                    return QByteArray(1, qqicode);
                }
                default:
                    break;
            }
            break;
        }
        case kSourceCount:
        {
            quint16 count = data.sources_size();

            if (data.is_override_source_count())
                count = data.source_count();

            switch(attrib)
            {
            case FieldName:            
                return QString("Number of Sources");
            case FieldValue:
                return count;
            case FieldTextValue:
                return QString("%1").arg(count);
            case FieldFrameValue:
            {
                QByteArray fv;
                fv.resize(2);
                qToBigEndian(count, (uchar*) fv.data());
                return fv;
            }
            default:
                break;
            }
            break;
        }
        case kSources:
            // XXX: Handled by each subclass
            break;
        case kRsvd2:
        {
            quint16 rsvd = 0;

            switch(attrib)
            {
                case FieldName:            
                    return QString("Reserved");
                case FieldValue:
                    return rsvd;
                case FieldTextValue:
                    return QString("%1").arg(rsvd);
                case FieldFrameValue:
                {
                    QByteArray fv;
                    fv.resize(2);
                    qToBigEndian(rsvd, (uchar*) fv.data());
                    return fv;
                }
                default:
                    break;
            }
            break;
        }
        case kGroupRecordCount:
        {
            quint16 count = data.group_records_size();

            if (data.is_override_group_record_count())
                count = data.group_record_count();

            switch(attrib)
            {
                case FieldName:            
                    return QString("Number of Group Records");
                case FieldValue:
                    return count;
                case FieldTextValue:
                    return QString("%1").arg(count);
                case FieldFrameValue:
                {
                    QByteArray fv;
                    fv.resize(2);
                    qToBigEndian(count, (uchar*) fv.data());
                    return fv;
                }
                default:
                    break;
            }
            break;
        }
        case kGroupRecords:
        {
            switch(attrib)
            {
            case FieldName:            
                return QString("Group List");
            case FieldValue:
            {
                QVariantList grpRecords;

                for (int i = 0; i < data.group_records_size(); i++)
                {
                    QVariantMap grpRec;
                    OstProto::Gmp::GroupRecord rec = data.group_records(i);

                    grpRec["groupRecordType"] = rec.type();
                    // grpRec["groupRecordAddress"] = subclass responsibility
                    grpRec["overrideGroupRecordSourceCount"] = 
                                rec.is_override_source_count();
                    grpRec["groupRecordSourceCount"] = rec.source_count();

                    // grpRec["groupRecordSourceList"] = subclass responsibility
                    grpRec["overrideAuxDataLength"] = 
                                rec.is_override_aux_data_length();
                    grpRec["auxDataLength"] = rec.aux_data_length();
                    grpRec["auxData"] = QByteArray().append(
                            QString::fromStdString(rec.aux_data()));

                    grpRecords.append(grpRec);
                }
                return grpRecords;
            }
            case FieldFrameValue:
            {
                QVariantList fv;
                for (int i = 0; i < data.group_records_size(); i++)
                {
                    OstProto::Gmp::GroupRecord rec = data.group_records(i);
                    QByteArray rv;
                    quint16 srcCount;

                    rv.resize(4);
                    rv[0] = rec.type();
                    rv[1] = rec.is_override_aux_data_length() ? 
                        rec.aux_data_length() : rec.aux_data().size()/4;

                    if (rec.is_override_source_count())
                        srcCount = rec.source_count();
                    else
                        srcCount = rec.sources_size();
                    qToBigEndian(srcCount, (uchar*)(rv.data()+2));

                    // group_address => subclass responsibility
                    // source list => subclass responsibility

                    rv.append(QString().fromStdString(rec.aux_data()));

                    fv.append(rv);
                }
                return fv;
            }
            case FieldTextValue:
            {
                QStringList list;

                for (int i = 0; i < data.group_records_size(); i++)
                {
                    OstProto::Gmp::GroupRecord rec = data.group_records(i);
                    QString str;

                    str.append("  Type: ");
                    switch(rec.type())
                    {
                    case OstProto::Gmp::GroupRecord::kIsInclude: 
                        str.append("IS_INCLUDE"); break;
                    case OstProto::Gmp::GroupRecord::kIsExclude: 
                        str.append("IS_EXCLUDE"); break;
                    case OstProto::Gmp::GroupRecord::kToInclude: 
                        str.append("TO_INCLUDE"); break;
                    case OstProto::Gmp::GroupRecord::kToExclude: 
                        str.append("TO_EXCLUDE"); break;
                    case OstProto::Gmp::GroupRecord::kAllowNew: 
                        str.append("ALLOW_NEW"); break;
                    case OstProto::Gmp::GroupRecord::kBlockOld: 
                        str.append("BLOCK_OLD"); break;
                    default: 
                        str.append("UNKNOWN"); break;
                    }
                    str.append(QString("; AuxLen: %1").arg(
                        rec.is_override_aux_data_length() ? 
                            rec.aux_data_length() : rec.aux_data().size()/4));
                    str.append(QString("; Source Count: %1").arg(
                        rec.is_override_source_count() ?
                            rec.source_count(): rec.sources_size()));

                    // NOTE: subclass should replace the XXX below with
                    // group address and source list
                    str.append(QString("; XXX"));

                    str.append(QString("; AuxData: ").append(
                                QByteArray().append(QString().fromStdString(
                                        rec.aux_data())).toHex()));

                    list.append(str);
                }
                return list;
            }
            default:
                break;
            }
            break;
        }

        // Meta Fields
        case kIsOverrideChecksum:
        {
            switch(attrib)
            {
            case FieldValue: return data.is_override_checksum();
            default: break;
            }
            break;
        }
        case kGroupMode:
        {
            switch(attrib)
            {
            case FieldValue: return data.group_mode();
            default: break;
            }
            break;
        }
        case kGroupCount:
        {
            switch(attrib)
            {
            case FieldValue: return data.group_count();
            default: break;
            }
            break;
        }
        case kGroupPrefix:
        {
            switch(attrib)
            {
            case FieldValue: return data.group_prefix();
            default: break;
            }
            break;
        }
        case kIsOverrideSourceCount:
        {
            switch(attrib)
            {
            case FieldValue: return data.is_override_source_count();
            default: break;
            }
            break;
        }
        case kIsOverrideGroupRecordCount:
        {
            switch(attrib)
            {
            case FieldValue: return data.is_override_group_record_count();
            default: break;
            }
            break;
        }

        default:
            qFatal("%s: unimplemented case %d in switch", __PRETTY_FUNCTION__,
                index);
            break;
    }

    return AbstractProtocol::fieldData(index, attrib, streamIndex);
}

bool GmpProtocol::setFieldData(int index, const QVariant &value, 
        FieldAttrib attrib)
{
    bool isOk = false;

    if (attrib != FieldValue)
        goto _exit;

    switch (index)
    {
        case kType:
        {
            uint type = value.toUInt(&isOk);
            if (isOk)
                data.set_type(type);
            break;
        }
        case kRsvdMrtCode:
        {
            uint val = value.toUInt(&isOk);
            if (isOk)
                data.set_rsvd_code(val);
            break;
        }
        case kChecksum:
        {
            uint csum = value.toUInt(&isOk);
            if (isOk)
                data.set_checksum(csum);
            break;
        }
        case kMldMrt:
        {
            uint mrt = value.toUInt(&isOk);
            if (isOk)
                data.set_max_response_time(mrt);
            break;
        }
        case kGroupAddress:
            // XXX: Handled by subclass
            isOk = false;
            break;
        case kRsvd1:
            isOk = false;
            break;
        case kSFlag:
        {
            bool flag = value.toBool();
            data.set_s_flag(flag);
            isOk = true;
            break;
        }
        case kQrv:
        {
            uint qrv = value.toUInt(&isOk);
            if (isOk)
                data.set_qrv(qrv);
            break;
        }
        case kQqic:
        {
            uint qqi = value.toUInt(&isOk);
            if (isOk)
                data.set_qqi(qqi);
            break;
        }
        case kSourceCount:
        {
            uint count = value.toUInt(&isOk);
            if (isOk)
                data.set_source_count(count);
            break;
        }
        case kSources:
            // XXX: Handled by subclass
            isOk = false;
            break;
        case kRsvd2:
            isOk = false;
            break;
        case kGroupRecordCount:
        {
            uint count = value.toUInt(&isOk);
            if (isOk)
                data.set_group_record_count(count);
            break;
        }
        case kGroupRecords:
        {
            QVariantList list = value.toList();

            data.clear_group_records();

            for (int i = 0; i < list.count(); i++)
            {
                QVariantMap grpRec = list.at(i).toMap();
                OstProto::Gmp::GroupRecord *rec = data.add_group_records();
                
                rec->set_type(OstProto::Gmp::GroupRecord::RecordType(
                            grpRec["groupRecordType"].toInt()));
                // NOTE: rec->group_address => subclass responsibility
                rec->set_is_override_source_count(
                            grpRec["overrideGroupRecordSourceCount"].toBool());
                rec->set_source_count(grpRec["groupRecordSourceCount"].toUInt());
                // NOTE: rec->sources => subclass responsibility
                rec->set_is_override_aux_data_length(
                            grpRec["overrideAuxDataLength"].toBool());
                rec->set_aux_data_length(grpRec["auxDataLength"].toUInt());
                QByteArray ba = grpRec["auxData"].toByteArray();
                // pad to word boundary
                if (ba.size() % 4)
                    ba.append(QByteArray(4 - (ba.size() % 4), char(0)));
                rec->set_aux_data(std::string(ba.constData(), ba.size()));
            }

            break;
        }

        // Meta Fields
        case kIsOverrideChecksum:
        {
            bool ovr = value.toBool();
            data.set_is_override_checksum(ovr);
            isOk = true;
            break;
        }

        case kGroupMode:
        {
            uint mode = value.toUInt(&isOk);
            if (isOk && data.GroupMode_IsValid(mode))
                data.set_group_mode((OstProto::Gmp::GroupMode)mode);
            break;
        }
        case kGroupCount:
        {
            uint count = value.toUInt(&isOk);
            if (isOk)
                data.set_group_count(count);
            break;
        }
        case kGroupPrefix:
        {
            uint prefix = value.toUInt(&isOk);
            if (isOk)
                data.set_group_prefix(prefix);
            break;
        }

        case kIsOverrideSourceCount:
        {
            bool ovr = value.toBool();
            data.set_is_override_source_count(ovr);
            isOk = true;
            break;
        }

        case kIsOverrideGroupRecordCount:
        {
            bool ovr = value.toBool();
            data.set_is_override_group_record_count(ovr);
            isOk = true;
            break;
        }
        default:
            qFatal("%s: unimplemented case %d in switch", __PRETTY_FUNCTION__,
                index);
            break;
    }

_exit:
    return isOk;
}

int GmpProtocol::protocolFrameSize(int streamIndex) const
{
    // TODO: Calculate to reduce processing cost
    return AbstractProtocol::protocolFrameValue(streamIndex, true).size();
}

bool GmpProtocol::isProtocolFrameValueVariable() const
{
    // No fields vary for Ssm Query and Report
    if (isSsmReport() || isSsmQuery())
        return false;

    // For all other msg types, check the group mode
    if (fieldData(kGroupMode, FieldValue).toUInt() 
            != uint(OstProto::Gmp::kFixed))
        return true;

    return false;
}

void GmpProtocol::loadConfigWidget()
{
    configWidget();

    configForm->msgTypeCombo->setValue(fieldData(kType, FieldValue).toUInt());
    // XXX: configForm->maxResponseTime set by subclass
    configForm->overrideChecksum->setChecked(
            fieldData(kIsOverrideChecksum, FieldValue).toBool());
    configForm->checksum->setText(uintToHexStr(
            fieldData(kChecksum, FieldValue).toUInt(), 2));

    configForm->groupAddress->setText(
            fieldData(kGroupAddress, FieldValue).toString());
    configForm->groupMode->setCurrentIndex(
            fieldData(kGroupMode, FieldValue).toUInt());
    configForm->groupCount->setText(
            fieldData(kGroupCount, FieldValue).toString());
    configForm->groupPrefix->setText(
            fieldData(kGroupPrefix, FieldValue).toString());

    configForm->sFlag->setChecked(fieldData(kSFlag, FieldValue).toBool());
    configForm->qrv->setText(fieldData(kQrv, FieldValue).toString());
    configForm->qqi->setText(fieldData(kQqic, FieldValue).toString());

    QStringList sl = fieldData(kSources, FieldValue).toStringList();
    configForm->sourceList->clear();
    foreach(QString src, sl)
    {
        QListWidgetItem *item = new QListWidgetItem(src);
        item->setFlags(item->flags() | Qt::ItemIsEditable);
        configForm->sourceList->addItem(item);
    }

    // NOTE: SourceCount should be loaded after sourceList
    configForm->overrideSourceCount->setChecked(
            fieldData(kIsOverrideSourceCount, FieldValue).toBool());
    configForm->sourceCount->setText(
            fieldData(kSourceCount, FieldValue).toString());

    QVariantList list = fieldData(kGroupRecords, FieldValue).toList();
    configForm->groupList->clear();
    foreach (QVariant rec, list)
    {
        QVariantMap grpRec = rec.toMap();
        QListWidgetItem *item = new QListWidgetItem;

        item->setData(Qt::UserRole, grpRec);
        item->setText(QString("%1: %2")
                .arg(configForm->groupRecordType->itemText(
                        grpRec["groupRecordType"].toInt()))
                .arg(grpRec["groupRecordAddress"].toString()));
        configForm->groupList->addItem(item);
    }

    // NOTE: recordCount should be loaded after recordList
    configForm->overrideGroupRecordCount->setChecked(
            fieldData(kIsOverrideGroupRecordCount, FieldValue).toBool());
    configForm->groupRecordCount->setText(
            fieldData(kGroupRecordCount, FieldValue).toString());

}

void GmpProtocol::storeConfigWidget()
{
    bool isOk;

    configWidget();

    configForm->update();

    setFieldData(kType, configForm->msgTypeCombo->currentValue());
    // XXX: configForm->maxResponseTime handled by subclass
    setFieldData(kIsOverrideChecksum, 
            configForm->overrideChecksum->isChecked());
    setFieldData(kChecksum, 
            configForm->checksum->text().toUInt(&isOk, BASE_HEX));

    setFieldData(kGroupAddress, configForm->groupAddress->text());
    setFieldData(kGroupMode, configForm->groupMode->currentIndex());
    setFieldData(kGroupCount, configForm->groupCount->text());
    setFieldData(kGroupPrefix, configForm->groupPrefix->text().remove('/'));

    setFieldData(kSFlag, configForm->sFlag->isChecked());
    setFieldData(kQrv, configForm->qrv->text());
    setFieldData(kQqic, configForm->qqi->text());

    QStringList list;
    for (int i = 0; i < configForm->sourceList->count(); i++)
        list.append(configForm->sourceList->item(i)->text());
    setFieldData(kSources, list);

    // sourceCount should be AFTER sources
    setFieldData(kIsOverrideSourceCount, 
            configForm->overrideSourceCount->isChecked());
    setFieldData(kSourceCount, configForm->sourceCount->text());

    QVariantList grpList;
    for (int i = 0; i < configForm->groupList->count(); i++)
    {
        QVariant grp = configForm->groupList->item(i)->data(Qt::UserRole);
        grpList.append(grp.toMap());
    }
    setFieldData(kGroupRecords, grpList);

    // groupRecordCount should be AFTER groupRecords
    setFieldData(kIsOverrideGroupRecordCount, 
            configForm->overrideGroupRecordCount->isChecked());
    setFieldData(kGroupRecordCount, configForm->groupRecordCount->text());
}