ostinato/common/snap.cpp
Srivats P. 1357f495ac Major rewrite of the protocol framework - changes not yet complete
Common
------
- Change in OstProto
	- Individual protocols are now extensions of (new) message 'Protocol' instead of 'Stream'
	- Stream now contains a repeated Protocol which also determines the ordered set of currently selected protocols; StreamCore.frame_proto which was doing this earlier has been removed

- Change in AbstractProtocol Interface
	- Parent changed to StreamBase
	- Corresponding change in constructor and factory func - createInstance()
	- new method protocolNumber() - returns unique id for each protocol
	- protoDataCopyInto/From() now copies into OstProto::Protocol instead of OstProto::Stream
- Change in all subclasses of AbstractProtocol to match new interface
- For all protocols, configFrom is no longer static, but each protocol has its own configForm
	- configForm creation is lazy
	- configForm is still a child of the protocol i.e. it will be destroyed alongwith the protocol
	- TODO: convert configWidget() to a pure factory function i.e. the protocol does not own the configForm - this requires us to pass the widget into load/storeConfigWidget() methods

- ProtocolCollection class removed alongwith its .h and .cpp
- ProtocolList class redefined to serve the purpose of ProtocolCollection
- New class ProtocolListIterator defined to iterate ProtocolList
- AbstractProtocol methods now use the ProtocolListIterator
- Factory function createProtocol() added to ProtocolManager
- OstProto::StreamCore accessor functions moved from Stream to StreamBase

Server
------
- MyService uses the newly moved accessors to StreamBase for OstProto::StreamCore members
- StreamInfo now uses the protocols to create the packet

Client
------
- StreamConfigDialog now uses ProtocolListIterator
- So does PacketModel
2009-08-02 14:52:34 +00:00

167 lines
3.2 KiB
C++

#include <qendian.h>
#include <QHostAddress>
#include "snap.h"
SnapConfigForm::SnapConfigForm(QWidget *parent)
: QWidget(parent)
{
setupUi(this);
}
SnapProtocol::SnapProtocol(StreamBase *stream)
: AbstractProtocol(stream)
{
configForm = NULL;
}
SnapProtocol::~SnapProtocol()
{
delete configForm;
}
AbstractProtocol* SnapProtocol::createInstance(StreamBase *stream)
{
return new SnapProtocol(stream);
}
quint32 SnapProtocol::protocolNumber() const
{
return OstProto::Protocol::kSnapFieldNumber;
}
void SnapProtocol::protoDataCopyInto(OstProto::Protocol &protocol) const
{
protocol.MutableExtension(OstProto::snap)->CopyFrom(data);
protocol.mutable_protocol_id()->set_id(protocolNumber());
}
void SnapProtocol::protoDataCopyFrom(const OstProto::Protocol &protocol)
{
if (protocol.protocol_id().id() == protocolNumber() &&
protocol.HasExtension(OstProto::snap))
data.MergeFrom(protocol.GetExtension(OstProto::snap));
}
QString SnapProtocol::name() const
{
return QString("SubNetwork Access Protocol");
}
QString SnapProtocol::shortName() const
{
return QString("SNAP");
}
quint32 SnapProtocol::protocolId(ProtocolIdType type) const
{
switch(type)
{
case ProtocolIdLlc: return 0xAAAA03;
default: break;
}
return AbstractProtocol::protocolId(type);
}
int SnapProtocol::fieldCount() const
{
return snap_fieldCount;
}
QVariant SnapProtocol::fieldData(int index, FieldAttrib attrib,
int streamIndex) const
{
switch (index)
{
case snap_oui:
switch(attrib)
{
case FieldName:
return QString("OUI");
case FieldValue:
return data.oui();
case FieldTextValue:
return QString("%1").arg(data.oui(), 6, BASE_HEX, QChar('0'));
case FieldFrameValue:
{
QByteArray fv;
fv.resize(4);
qToBigEndian((quint32) data.oui(), (uchar*) fv.data());
fv.remove(0, 1);
return fv;
}
default:
break;
}
break;
case snap_type:
{
quint16 type;
switch(attrib)
{
case FieldName:
return QString("Type");
case FieldValue:
type = payloadProtocolId(ProtocolIdEth);
return type;
case FieldTextValue:
type = payloadProtocolId(ProtocolIdEth);
return QString("%1").arg(type, 4, BASE_HEX, QChar('0'));
case FieldFrameValue:
{
QByteArray fv;
fv.resize(2);
type = payloadProtocolId(ProtocolIdEth);
qToBigEndian(type, (uchar*) fv.data());
return fv;
}
default:
break;
}
break;
}
default:
break;
}
return AbstractProtocol::fieldData(index, attrib, streamIndex);
}
bool SnapProtocol::setFieldData(int index, const QVariant &value,
FieldAttrib attrib)
{
// FIXME
return false;
}
QWidget* SnapProtocol::configWidget()
{
if (configForm == NULL)
configForm = new SnapConfigForm;
return configForm;
}
void SnapProtocol::loadConfigWidget()
{
configWidget();
configForm->leOui->setText(uintToHexStr(
fieldData(snap_oui, FieldValue).toUInt(), 3));
configForm->leType->setText(uintToHexStr(
fieldData(snap_type, FieldValue).toUInt(), 2));
}
void SnapProtocol::storeConfigWidget()
{
bool isOk;
configWidget();
data.set_oui(configForm->leOui->text().toULong(&isOk, BASE_HEX));
data.set_type(configForm->leType->text().toULong(&isOk, BASE_HEX));
}