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/*
Copyright (C) 2021 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 "grepdml.h"
#include "gre.pb.h"
PdmlGreProtocol::PdmlGreProtocol()
{
ostProtoId_ = OstProto::Protocol::kGreFieldNumber;
fieldMap_.insert("gre.proto", OstProto::Gre::kProtocolTypeFieldNumber);
fieldMap_.insert("gre.checksum", OstProto::Gre::kChecksumFieldNumber);
fieldMap_.insert("gre.offset", OstProto::Gre::kRsvd1FieldNumber);
fieldMap_.insert("gre.key", OstProto::Gre::kKeyFieldNumber);
fieldMap_.insert("gre.sequence_number", OstProto::Gre::kSequenceNumFieldNumber);
}
PdmlGreProtocol::~PdmlGreProtocol()
{
}
PdmlProtocol* PdmlGreProtocol::createInstance()
{
return new PdmlGreProtocol();
}
void PdmlGreProtocol::postProtocolHandler(OstProto::Protocol* pbProto,
OstProto::Stream* /*stream*/)
{
OstProto::Gre *gre = pbProto->MutableExtension(OstProto::gre);
qDebug("GRE: post");
gre->set_is_override_checksum(overrideCksum_);
return;
}
void PdmlGreProtocol::unknownFieldHandler(QString name,
int /*pos*/, int /*size*/, const QXmlStreamAttributes& attributes,
OstProto::Protocol* proto, OstProto::Stream* /*stream*/)
{
if (name == "gre.flags_and_version") {
bool isOk;
OstProto::Gre *gre = proto->MutableExtension(OstProto::gre);
quint16 flagsAndVersion = attributes.value("value")
.toUInt(&isOk, kBaseHex);
gre->set_flags(flagsAndVersion >> 12);
gre->set_rsvd0((flagsAndVersion & 0x0FFF) >> 3);
gre->set_version(flagsAndVersion & 0x0007);
}
}
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