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//
// Copyright (C) 2007
// Fraunhofer Institut fuer offene Kommunikationssysteme (FOKUS)
// Kompetenzzentrum fuer Satelitenkommunikation (SatCom)
// Joachim Kaeber <joachim.kaeber@fokus.fraunhofer.de>
//
// This program 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 2 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, write to the
// Free Software Foundation, Inc.,
// 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
/** \file
\brief GREPacket public header */
#ifndef HH_GREPacket
#define HH_GREPacket 1
// Custom includes
#include <algorithm>
#include "../../Packets/Packets.hh"
//#include "GREPacket.mpp"
///////////////////////////////hh.p////////////////////////////////////////
namespace senf {
/** \brief Parse a GRE packet
Parser implementing the header of a General Routing Encapsulation (GRE, RFC 2784) Packet
\see GREPacketType
*/
struct Parse_GREPacket : public PacketParserBase
{
SENF_PARSER_BITFIELD ( checksum_present, 1, bool );
SENF_PARSER_PRIVATE_BITFIELD ( reserved0_, 12, unsigned ); // TODO: SKIP !!
SENF_PARSER_BITFIELD_RO ( version_number, 3, unsigned ); // TODO: Always Zero !!
SENF_PARSER_FIELD ( protocol_type, Parse_UInt16 );
SENF_PARSER_PRIVATE_VARIANT ( checksum_, checksum_present,
(VoidPacketParser) (Parse_UInt16) );
SENF_PARSER_PRIVATE_VARIANT ( reserved1_, checksum_present,
(VoidPacketParser) (Parse_UInt16) );
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SENF_PARSER_FINALIZE( Parse_GREPacket );
private:
Parse_UInt16 checksum() const /// only defined if checksum_present() == \c true
{ return checksum_().get<1>(); }
};
/** \brief GRE packet
\par Packet type (typedef):
\ref GREPacket
\par Fields:
\ref Parse_GREPacket
\ingroup protocolbundle_mpegdvb
*/
struct GREPacketType
: public PacketTypeBase,
public PacketTypeMixin<GREPacketType>
{
typedef PacketTypeMixin<GREPacketType> mixin;
typedef ConcretePacket<GREPacketType> packet;
typedef Parse_GREPacket parser;
using mixin::nextPacketRange;
using mixin::init;
using mixin::initSize;
static void dump(packet p, std::ostream & os);
};
/** \brief GRE packet typedef */
typedef GREPacketType::packet GREPacket;
}
///////////////////////////////hh.e////////////////////////////////////////
//#include "TransportPacket.cci"
//#include "TransportPacket.ct"
//#include "TransportPacket.cti"
#endif
// Local Variables:
// mode: c++
// fill-column: 100
// c-file-style: "senf"
// indent-tabs-mode: nil
// ispell-local-dictionary: "american"
// compile-command: "scons -u test"
// comment-column: 40
// End: