UDPPacket.hh

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//
// Copyright (c) 2020 Fraunhofer Institute for Applied Information Technology (FIT)
//                    Network Research Group (NET)
//                    Schloss Birlinghoven, 53754 Sankt Augustin, GERMANY
//                    Contact: support@wiback.org
//
// This file is part of the SENF code tree.
// It is licensed under the 3-clause BSD License (aka New BSD License).
// See LICENSE.txt in the top level directory for details or visit
// https://opensource.org/licenses/BSD-3-Clause
//


#ifndef HH_SENF_Packets_DefaultBundle_UDPPacket_
#define HH_SENF_Packets_DefaultBundle_UDPPacket_ 1

// Custom includes
#include <senf/Packets/Packets.hh>
#include "Registries.hh"

//-/////////////////////////////////////////////////////////////////////////////////////////////////

namespace senf {

    struct UDPPacketParser : public PacketParserBase
    {
#       include SENF_FIXED_PARSER()

        SENF_PARSER_FIELD( source,      senf::UInt16Parser );
        SENF_PARSER_FIELD( destination, senf::UInt16Parser );
        SENF_PARSER_FIELD( length,      senf::UInt16Parser );
        SENF_PARSER_FIELD( checksum,    senf::UInt16Parser );

        SENF_PARSER_FINALIZE( UDPPacketParser );

        boost::uint16_t calcChecksum() const; 

        bool validateChecksum() const {
            return checksum() == 0u || checksum() == calcChecksum();
        }                               

    };

    struct UDPPacketType
        : public PacketTypeBase,
          public PacketTypeMixin<UDPPacketType>
    {
        typedef PacketTypeMixin<UDPPacketType> mixin;
        typedef ConcretePacket<UDPPacketType> packet; 
        typedef UDPPacketParser parser;               

        using mixin::nextPacketRange;
        using mixin::initSize;
        using mixin::init;

        static void dump(packet p, std::ostream & os);
        static void finalize(packet p); 

        static const IPTypes::key_t ipType = 17;
    };

    typedef ConcretePacket<UDPPacketType> UDPPacket;
    SENF_PACKET_PREVENT_TEMPLATE_INSTANTIATION( UDPPacket );
}

//-/////////////////////////////////////////////////////////////////////////////////////////////////
//#include "UDPPacket.cci"
//#include "UDPPacket.ct"
//#include "UDPPacket.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: