Packets/DefaultBundle/IpV6Packet.hh

   1 // Copyright (C) 2007
   2 // Fraunhofer Institut fuer offene Kommunikationssysteme (FOKUS)
   3 // Kompetenzzentrum fuer Satelitenkommunikation (SatCom)
   4 //     Stefan Bund <g0dil@berlios.de>
   5 //
   6 // This program is free software; you can redistribute it and/or modify
   7 // it under the terms of the GNU General Public License as published by
   8 // the Free Software Foundation; either version 2 of the License, or
   9 // (at your option) any later version.
  10 //
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License
  17 // along with this program; if not, write to the
  18 // Free Software Foundation, Inc.,
  19 // 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20
  21 /** \file
  22     \brief IpV6Packet public header */
  23
  24 #ifndef HH_IpV6Packet_
  25 #define HH_IpV6Packet_ 1
  26
  27 // Custom includes
  28 #include "../../Socket/Protocols/INet/INet6Address.hh"
  29 #include "../../Packets/Packets.hh"
  30 #include "IpV4Packet.hh"
  31
  32 //#include "IpV6Packet.mpp"
  33 ///////////////////////////////hh.p////////////////////////////////////////
  34
  35 namespace senf {
  36
  37     /** \brief Parse an IpV6 address
  38
  39         \see INet6Address
  40      */
  41     struct Parse_INet6Address : public PacketParserBase
  42     {
  43         Parse_INet6Address(data_iterator i, state_type s) : PacketParserBase(i,s,fixed_bytes) {}
  44
  45         ///////////////////////////////////////////////////////////////////////////
  46
  47         typedef INet6Address value_type;
  48         static const size_type fixed_bytes = 16u;
  49
  50         value_type value() const { return value_type::from_data(i()); }
  51         void value(value_type const & v) { std::copy(v.begin(), v.end(), i()); }
  52         operator value_type() { return value(); }
  53         byte & operator[](size_type index) { return *boost::next(i(),index); }
  54         Parse_INet6Address const & operator= (value_type const & other)
  55             { value(other); return *this; }
  56     };
  57
  58     /** \brief Parse an IpV6 packet
  59
  60         \see IpV6PacketType \n
  61             <a href="http://tools.ietf.org/html/rfc2460">RFC 2460</a>
  62      */
  63     struct Parse_IpV6 : public PacketParserBase
  64     {
  65 #       include SENF_FIXED_PARSER()
  66
  67         SENF_PARSER_BITFIELD( version,       4, unsigned );
  68         SENF_PARSER_BITFIELD( trafficClass,  8, unsigned );
  69         SENF_PARSER_BITFIELD( flowLabel,    20, unsigned );
  70
  71         SENF_PARSER_FIELD( length,       Parse_UInt16       );
  72         SENF_PARSER_FIELD( nextHeader,   Parse_UInt8        );
  73         SENF_PARSER_FIELD( hopLimit,     Parse_UInt8        );
  74         SENF_PARSER_FIELD( source,       Parse_INet6Address );
  75         SENF_PARSER_FIELD( destination,  Parse_INet6Address );
  76
  77         SENF_PARSER_INIT() {
  78             version() = 6;
  79         }
  80
  81         SENF_PARSER_FINALIZE(Parse_IpV6);
  82     };
  83
  84     /** \brief IpV6 packet
  85
  86         \par Packet type (typedef):
  87             \ref IpV6Packet
  88
  89         \par Fields:
  90             \ref Parse_IpV6
  91
  92         \par Associated registries:
  93             \ref IpTypes
  94
  95         \par Finalize action:
  96             Set \a length from payload size\n
  97             Set \a nextHeader from type of next packet if found in \ref IpTypes
  98
  99         \ingroup protocolbundle_default
 100      */
 101     struct IpV6PacketType
 102         : public PacketTypeBase,
 103           public PacketTypeMixin<IpV6PacketType, IpTypes>
 104     {
 105         typedef PacketTypeMixin<IpV6PacketType, IpTypes> mixin;
 106         typedef ConcretePacket<IpV6PacketType> packet;
 107         typedef Parse_IpV6 parser;
 108
 109         using mixin::nextPacketRange;
 110         using mixin::nextPacketType;
 111         using mixin::initSize;
 112         using mixin::init;
 113
 114         static registry_key_t nextPacketKey(packet p)
 115             { return p->nextHeader(); }
 116
 117         static void dump(packet p, std::ostream & os);
 118
 119         static void finalize(packet p);
 120     };
 121
 122     /** \brief IpV6 packet typedef */
 123     typedef IpV6PacketType::packet IpV6Packet;
 124
 125     ///@}
 126 }
 127
 128 ///////////////////////////////hh.e////////////////////////////////////////
 129 #endif
 130 #ifndef SENF_PACKETS_DECL_ONLY
 131 //#include "IpV6Packet.cci"
 132 //#include "IpV6Packet.ct"
 133 //#include "IpV6Packet.cti"
 134 #endif
 135
 136 \f
 137 // Local Variables:
 138 // mode: c++
 139 // fill-column: 100
 140 // c-file-style: "senf"
 141 // indent-tabs-mode: nil
 142 // ispell-local-dictionary: "american"
 143 // compile-command: "scons -u test"
 144 // comment-column: 40
 145 // End: