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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/>
*/
#include "vlan.h"
VlanProtocol::VlanProtocol(StreamBase *stream, AbstractProtocol *parent)
: AbstractProtocol(stream, parent)
{
}
VlanProtocol::~VlanProtocol()
{
}
AbstractProtocol* VlanProtocol::createInstance(StreamBase *stream,
AbstractProtocol *parent)
{
return new VlanProtocol(stream, parent);
}
quint32 VlanProtocol::protocolNumber() const
{
return OstProto::Protocol::kVlanFieldNumber;
}
void VlanProtocol::protoDataCopyInto(OstProto::Protocol &protocol) const
{
protocol.MutableExtension(OstProto::vlan)->CopyFrom(data);
protocol.mutable_protocol_id()->set_id(protocolNumber());
}
void VlanProtocol::protoDataCopyFrom(const OstProto::Protocol &protocol)
{
if (protocol.protocol_id().id() == protocolNumber() &&
protocol.HasExtension(OstProto::vlan))
data.MergeFrom(protocol.GetExtension(OstProto::vlan));
}
QString VlanProtocol::name() const
{
return QString("Vlan");
}
QString VlanProtocol::shortName() const
{
return QString("Vlan");
}
int VlanProtocol::fieldCount() const
{
return vlan_fieldCount;
}
AbstractProtocol::FieldFlags VlanProtocol::fieldFlags(int index) const
{
AbstractProtocol::FieldFlags flags;
flags = AbstractProtocol::fieldFlags(index);
switch (index)
{
case vlan_tpid:
case vlan_prio:
case vlan_cfiDei:
case vlan_vlanId:
break;
// meta-fields
case vlan_isOverrideTpid:
flags &= ~FrameField;
flags |= MetaField;
break;
}
return flags;
}
QVariant VlanProtocol::fieldData(int index, FieldAttrib attrib,
int streamIndex) const
{
switch (index)
{
case vlan_tpid:
{
quint16 tpid;
tpid = data.is_override_tpid() ? data.tpid() : 0x8100;
switch(attrib)
{
case FieldName:
return QString("Tag Protocol Id");
case FieldValue:
return tpid;
case FieldTextValue:
return QString("0x%1").arg(tpid, 2, BASE_HEX, QChar('0'));
case FieldFrameValue:
{
QByteArray fv;
fv.resize(2);
qToBigEndian(tpid, (uchar*) fv.data());
return fv;
}
default:
break;
}
break;
}
case vlan_prio:
{
uint prio = ((data.vlan_tag() >> 13) & 0x07);
switch(attrib)
{
case FieldName:
return QString("Priority");
case FieldValue:
return prio;
case FieldTextValue:
return QString("%1").arg(prio);
case FieldFrameValue:
return QByteArray(1, (char) prio);
case FieldBitSize:
return 3;
default:
break;
}
break;
}
case vlan_cfiDei:
{
uint cfiDei = ((data.vlan_tag() >> 12) & 0x01);
switch(attrib)
{
case FieldName:
return QString("CFI/DEI");
case FieldValue:
return cfiDei;
case FieldTextValue:
return QString("%1").arg(cfiDei);
case FieldFrameValue:
return QByteArray(1, (char) cfiDei);
case FieldBitSize:
return 1;
default:
break;
}
break;
}
case vlan_vlanId:
{
quint16 vlanId = (data.vlan_tag() & 0x0FFF);
switch(attrib)
{
case FieldName:
return QString("VLAN Id");
case FieldValue:
return vlanId;
case FieldTextValue:
return QString("%1").arg(vlanId);
case FieldFrameValue:
{
QByteArray fv;
fv.resize(2);
qToBigEndian((quint16) vlanId, (uchar*) fv.data());
return fv;
}
case FieldBitSize:
return 12;
default:
break;
}
break;
}
// Meta fields
case vlan_isOverrideTpid:
switch(attrib)
{
case FieldValue: return data.is_override_tpid();
default: break;
}
break;
default:
break;
}
return AbstractProtocol::fieldData(index, attrib, streamIndex);
}
bool VlanProtocol::setFieldData(int index, const QVariant &value,
FieldAttrib attrib)
{
bool isOk = false;
if (attrib != FieldValue)
goto _exit;
switch (index)
{
case vlan_tpid:
{
uint tpid = value.toUInt(&isOk);
if (isOk)
data.set_tpid(tpid);
break;
}
case vlan_prio:
{
uint prio = value.toUInt(&isOk);
if (isOk)
data.set_vlan_tag(
((prio & 0x07) << 13) | (data.vlan_tag() & 0x1FFF));
break;
}
case vlan_cfiDei:
{
uint cfiDei = value.toUInt(&isOk);
if (isOk)
data.set_vlan_tag(
((cfiDei & 0x01) << 12) | (data.vlan_tag() & 0xEFFF));
break;
}
case vlan_vlanId:
{
uint vlanId = value.toUInt(&isOk);
if (isOk)
data.set_vlan_tag(
(vlanId & 0x0FFF) | (data.vlan_tag() & 0xF000));
break;
}
// Meta-Fields
case vlan_isOverrideTpid:
{
bool override = value.toUInt(&isOk);
if (isOk)
data.set_is_override_tpid(override);
break;
}
default:
qFatal("%s: unimplemented case %d in switch", __PRETTY_FUNCTION__,
index);
break;
}
_exit:
return isOk;
}
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