ostinato/common/mld.h

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/*
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/>
*/
#ifndef _MLD_H
#define _MLD_H
#include "gmp.h"
#include "mld.pb.h"
// MLD uses the same msg type value for 'Query' messages across
// versions despite the fields being different. To distinguish
// Query messages of different versions, we use an additional
// upper byte
enum MldMsgType
{
kMldV1Query = 0x82,
kMldV1Report = 0x83,
kMldV1Done = 0x84,
kMldV2Query = 0xFF82,
kMldV2Report = 0x8F
};
class MldProtocol : public GmpProtocol
{
public:
MldProtocol(StreamBase *stream, AbstractProtocol *parent = 0);
virtual ~MldProtocol();
static AbstractProtocol* createInstance(StreamBase *stream,
AbstractProtocol *parent = 0);
virtual quint32 protocolNumber() const;
virtual void protoDataCopyInto(OstProto::Protocol &protocol) const;
virtual void protoDataCopyFrom(const OstProto::Protocol &protocol);
virtual quint32 protocolId(ProtocolIdType type) const;
virtual QString name() const;
virtual QString shortName() const;
virtual AbstractProtocol::FieldFlags fieldFlags(int index) const;
virtual QVariant fieldData(int index, FieldAttrib attrib,
int streamIndex = 0) const;
virtual bool setFieldData(int index, const QVariant &value,
FieldAttrib attrib = FieldValue);
protected:
virtual bool isSsmReport() const;
virtual bool isQuery() const;
virtual bool isSsmQuery() const;
virtual quint16 checksum(int streamIndex) const;
private:
int mrc(int value) const;
};
inline bool MldProtocol::isSsmReport() const
{
return (msgType() == kMldV2Report);
}
inline bool MldProtocol::isQuery() const
{
return ((msgType() == kMldV1Query)
|| (msgType() == kMldV2Query));
}
inline bool MldProtocol::isSsmQuery() const
{
return (msgType() == kMldV2Query);
}
inline int MldProtocol::mrc(int value) const
{
return quint16(value); // TODO: if value > 128, convert to mantissa/exp form
}
#endif