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/*
Copyright (C) 2014 PLVision.
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/>
This module is developed by PLVision <developers@plvision.eu>
*/
#include "stp.h"
#include <QRegExp>
#define uintToMacStr(num) \
QString("%1").arg(num, 6 * 2, BASE_HEX, QChar('0')) \
.replace(QRegExp("([0-9a-fA-F]{2}\\B)"), "\\1:").toUpper()
#define ONE_BIT(pos) ((unsigned int)(1 << (pos)))
#define BITS(bit) (bit)
#define BYTES(byte) (byte)
#define BYTES_TO_BITS(byte) (byte * 8)
#define STP_LLC 0x424203
StpProtocol::StpProtocol(StreamBase *stream, AbstractProtocol *parent)
: AbstractProtocol(stream, parent)
{
}
StpProtocol::~StpProtocol()
{
}
AbstractProtocol* StpProtocol::createInstance(StreamBase *stream,
AbstractProtocol *parent)
{
return new StpProtocol(stream, parent);
}
quint32 StpProtocol::protocolNumber() const
{
return OstProto::Protocol::kStpFieldNumber;
}
void StpProtocol::protoDataCopyInto(OstProto::Protocol &protocol) const
{
protocol.MutableExtension(OstProto::stp)->CopyFrom(data_);
protocol.mutable_protocol_id()->set_id(protocolNumber());
}
void StpProtocol::protoDataCopyFrom(const OstProto::Protocol &protocol)
{
if (protocol.protocol_id().id() == protocolNumber() &&
protocol.HasExtension(OstProto::stp))
data_.MergeFrom(protocol.GetExtension(OstProto::stp));
}
QString StpProtocol::name() const
{
return QString("Spanning Tree Protocol");
}
QString StpProtocol::shortName() const
{
return QString("STP");
}
quint32 StpProtocol::protocolId(ProtocolIdType type) const
{
switch(type)
{
case ProtocolIdLlc:
return STP_LLC;
default:
break;
}
return AbstractProtocol::protocolId(type);
}
int StpProtocol::fieldCount() const
{
return stp_fieldCount;
}
AbstractProtocol::FieldFlags StpProtocol::fieldFlags(int index) const
{
AbstractProtocol::FieldFlags flags;
flags = AbstractProtocol::fieldFlags(index);
switch (index)
{
case stp_protocol_id:
case stp_version_id:
case stp_bpdu_type:
case stp_flags:
case stp_root_id:
case stp_root_path_cost:
case stp_bridge_id:
case stp_port_id:
case stp_message_age:
case stp_max_age:
case stp_hello_time:
case stp_forward_delay:
break;
default:
qFatal("%s: unimplemented case %d in switch", __PRETTY_FUNCTION__,
index);
break;
}
return flags;
}
QVariant StpProtocol::fieldData(int index, FieldAttrib attrib,
int streamIndex) const
{
QString str[] = {"Topology Change", "Topology Change Acknowledgment"};
switch (index)
{
case stp_protocol_id:
{
switch (attrib)
{
case FieldName:
return QString("Protocol Identifier");
case FieldValue:
return data_.protocol_id();
case FieldTextValue:
return QString("0x%1").arg(data_.protocol_id(),
4, BASE_HEX, QChar('0'));
case FieldFrameValue:
{
QByteArray fv;
fv.resize(BYTES(2));
qToBigEndian((quint16)data_.protocol_id(),
(uchar*)fv.data());
return fv;
}
case FieldBitSize:
return BYTES_TO_BITS(2);
default:
break;
}
break;
}
case stp_version_id:
{
switch (attrib)
{
case FieldName:
return QString("Version Identifier");
case FieldValue:
return data_.protocol_version_id();
case FieldTextValue:
return QString("%1").arg(
data_.protocol_version_id());
case FieldFrameValue:
return QByteArray(1,
(char)data_.protocol_version_id());
case FieldBitSize:
return BYTES_TO_BITS(1);
default:
break;
}
break;
}
case stp_bpdu_type:
{
switch (attrib)
{
case FieldName:
return QString("BPDU Type");
case FieldValue:
return data_.bpdu_type();
case FieldTextValue:
return QString("0x%1").arg(data_.bpdu_type(),
2, BASE_HEX, QChar('0'));
case FieldFrameValue:
return QByteArray(1, (char)data_.bpdu_type());
case FieldBitSize:
return BYTES_TO_BITS(1);
default:
break;
}
break;
}
case stp_flags:
{
switch (attrib)
{
case FieldName:
return QString("BPDU Flags");
case FieldValue:
return data_.flags();
case FieldTextValue:
{
QString strTemp = "(";
if((data_.flags() & ONE_BIT(0))) strTemp += str[0] + ", ";
if((data_.flags() & ONE_BIT(7))) strTemp += str[1] + ", ";
strTemp += ")";
strTemp.replace(", )", ")");
return strTemp;
}
case FieldFrameValue:
return QByteArray(1, (char)data_.flags());
case FieldBitSize:
return BYTES_TO_BITS(1);
default:
break;
}
break;
}
case stp_root_id:
{
switch (attrib)
{
case FieldName:
return QString("Root Identifier");
case FieldValue:
return (quint64) data_.root_id();
case FieldTextValue:
{
// Root ID contain two value:
// Root ID Priority(first 2 bytes)
// and Root ID MAC (last 6 bytes). (IEEE802.1D-2008)
quint16 priority = (
data_.root_id() & 0xFFFF000000000000ULL) >> (BYTES_TO_BITS(6));
quint64 mac = data_.root_id() & 0x0000FFFFFFFFFFFFULL;
return QString("Priority: %1 / MAC: %2")
.arg(QString::number(priority),
uintToMacStr(mac));
}
case FieldFrameValue:
{
QByteArray fv;
fv.resize(BYTES(8));
qToBigEndian((quint64)data_.root_id(), (uchar*)fv.data());
return fv;
}
case FieldBitSize:
return BYTES_TO_BITS(8);
default:
break;
}
break;
}
case stp_root_path_cost:
{
switch (attrib)
{
case FieldName:
return QString("Root Path Cost");
case FieldValue:
return data_.root_path_cost();
case FieldTextValue:
return QString("%1").arg(data_.root_path_cost());
case FieldFrameValue:
{
QByteArray fv;
fv.resize(BYTES(4));
qToBigEndian(data_.root_path_cost(), (uchar*)fv.data());
return fv;
}
case FieldBitSize:
return BYTES_TO_BITS(4);
default:
break;
}
break;
}
case stp_bridge_id:
{
switch (attrib)
{
case FieldName:
return QString("Bridge Identifier");
case FieldValue:
return (quint64) data_.bridge_id();
case FieldTextValue:
{
// Bridge ID contain two value:
// Bridge ID Priority(first 2 bytes)
// and Bridge ID MAC (last 6 bytes). (IEEE802.1D-2008)
quint16 priority = (data_.bridge_id() & 0xFFFF000000000000ULL
) >> (BYTES_TO_BITS(6));
quint64 mac = data_.bridge_id() & 0x0000FFFFFFFFFFFFULL;
return QString("Priority: %1 / MAC: %2").arg(QString::number(priority),
uintToMacStr(mac));
}
case FieldFrameValue:
{
QByteArray fv;
fv.resize(BYTES(8));
qToBigEndian((quint64)data_.bridge_id(), (uchar*)fv.data());
return fv;
}
case FieldBitSize:
return BYTES_TO_BITS(8);
default:
break;
}
break;
}
case stp_port_id:
{
switch (attrib)
{
case FieldName:
return QString("Port Identifier");
case FieldValue:
return data_.port_id();
case FieldTextValue:
return QString("0x%1").arg(data_.port_id(), 4,
BASE_HEX, QChar('0'));
case FieldFrameValue:
{
QByteArray fv;
fv.resize(BYTES(2));
qToBigEndian((quint16)data_.port_id(), (uchar*)fv.data());
return fv;
}
case FieldBitSize:
return BYTES_TO_BITS(2);
default:
break;
}
break;
}
case stp_message_age:
{
switch (attrib)
{
case FieldName:
return QString("Message Age");
case FieldValue:
return data_.message_age();
case FieldTextValue:
return QString("%1").arg(data_.message_age());
case FieldFrameValue:
{
QByteArray fv;
fv.resize(BYTES(2));
qToBigEndian((quint16)(data_.message_age()),
(uchar*)fv.data());
return fv;
}
case FieldBitSize:
return BYTES_TO_BITS(2);
default:
break;
}
break;
}
case stp_max_age:
{
switch (attrib)
{
case FieldName:
return QString("Max Age");
case FieldValue:
return data_.max_age();
case FieldTextValue:
return QString("%1").arg(data_.max_age());
case FieldFrameValue:
{
QByteArray fv;
fv.resize(BYTES(2));
qToBigEndian((quint16)data_.max_age(), (uchar*)fv.data());
return fv;
}
case FieldBitSize:
return BYTES_TO_BITS(2);
default:
break;
}
break;
}
case stp_hello_time:
{
switch (attrib)
{
case FieldName:
return QString("Hello Time");
case FieldValue:
return data_.hello_time();
case FieldTextValue:
return QString("%1").arg(data_.hello_time());
case FieldFrameValue:
{
QByteArray fv;
fv.resize(BYTES(2));
qToBigEndian((quint16)data_.hello_time(), (uchar*)fv.data());
return fv;
}
case FieldBitSize:
return BYTES_TO_BITS(2);
default:
break;
}
break;
}
case stp_forward_delay:
{
switch (attrib)
{
case FieldName:
return QString("Forward Delay");
case FieldValue:
return data_.forward_delay();
case FieldTextValue:
return QString("%1").arg(data_.forward_delay());
case FieldFrameValue:
{
QByteArray fv;
fv.resize(BYTES(2));
qToBigEndian((quint16)data_.forward_delay(),
(uchar*)fv.data());
return fv;
}
case FieldBitSize:
return BYTES_TO_BITS(2);
default:
break;
}
break;
}
default:
break;
}
return AbstractProtocol::fieldData(index, attrib, streamIndex);
}
bool StpProtocol::setFieldData(int index, const QVariant &value,
FieldAttrib attrib)
{
bool isOk = false;
if (attrib != FieldValue)
return isOk;
switch (index)
{
case stp_protocol_id:
{
quint16 protoId = value.toUInt(&isOk);
if (isOk)
data_.set_protocol_id(protoId);
break;
}
case stp_version_id:
{
quint8 versionId = value.toUInt(&isOk);
if (isOk)
data_.set_protocol_version_id(versionId);
break;
}
case stp_bpdu_type:
{
quint8 bpdu = value.toUInt(&isOk);
if (isOk)
data_.set_bpdu_type(bpdu);
break;
}
case stp_flags:
{
quint8 flags = value.toUInt(&isOk);
if (isOk)
data_.set_flags(flags);
break;
}
case stp_root_id:
{
quint64 rootId = value.toULongLong(&isOk);
if (isOk)
data_.set_root_id(rootId);
break;
}
case stp_root_path_cost:
{
quint32 pathCost = value.toUInt(&isOk);
if (isOk)
data_.set_root_path_cost(pathCost);
break;
}
case stp_bridge_id:
{
quint64 bridgeId = value.toULongLong(&isOk);
if (isOk)
data_.set_bridge_id(bridgeId);
break;
}
case stp_port_id:
{
quint32 port_id = value.toUInt(&isOk);
if (isOk)
data_.set_port_id(port_id);
break;
}
case stp_message_age:
{
quint32 messageAge = value.toUInt(&isOk);
if (isOk)
data_.set_message_age(messageAge);
break;
}
case stp_max_age:
{
quint32 maxAge = value.toUInt(&isOk);
if (isOk)
data_.set_max_age(maxAge);
break;
}
case stp_hello_time:
{
quint32 helloTime = value.toUInt(&isOk);
if (isOk)
data_.set_hello_time(helloTime);
break;
}
case stp_forward_delay:
{
quint32 forwardDelay = value.toUInt(&isOk);
if (isOk)
data_.set_forward_delay(forwardDelay);
break;
}
default:
break;
}
return isOk;
}
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