Packets/DefaultBundle/IPv6Packet.hh

   1 // $Id: EthernetPacket.hh 299 2007-07-10 21:23:49Z g0dil $
   2 //
   3 // Copyright (C) 2007
   4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
   5 // Competence Center NETwork research (NET), St. Augustin, GERMANY
   6 //     Stefan Bund <g0dil@berlios.de>
   7 //
   8 // This program is free software; you can redistribute it and/or modify
   9 // it under the terms of the GNU General Public License as published by
  10 // the Free Software Foundation; either version 2 of the License, or
  11 // (at your option) any later version.
  12 //
  13 // This program is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License
  19 // along with this program; if not, write to the
  20 // Free Software Foundation, Inc.,
  21 // 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  22
  23 /** \file
  24     \brief IPv6Packet public header */
  25
  26 #ifndef HH_SENF_Packets_DefaultBundle_IPv6Packet_
  27 #define HH_SENF_Packets_DefaultBundle_IPv6Packet_ 1
  28
  29 // Custom includes
  30 #include "../../Socket/Protocols/INet/INet6Address.hh"
  31 #include "../../Packets/Packets.hh"
  32 #include "IPv4Packet.hh"
  33
  34 //#include "IPv6Packet.mpp"
  35 ///////////////////////////////hh.p////////////////////////////////////////
  36
  37 namespace senf {
  38
  39     /** \brief Parse an IPv6 address
  40
  41         \see INet6Address
  42      */
  43     struct INet6AddressParser : public PacketParserBase
  44     {
  45         INet6AddressParser(data_iterator i, state_type s) : PacketParserBase(i,s,fixed_bytes) {}
  46
  47         ///////////////////////////////////////////////////////////////////////////
  48
  49         typedef INet6Address value_type;
  50         static const size_type fixed_bytes = 16u;
  51
  52         value_type value() const { return value_type::from_data(i()); }
  53         void value(value_type const & v) { std::copy(v.begin(), v.end(), i()); }
  54         operator value_type() const { return value(); }
  55         byte & operator[](size_type index) const { return *boost::next(i(),index); }
  56         INet6AddressParser const & operator= (value_type const & other)
  57             { value(other); return *this; }
  58     };
  59
  60     /** \brief Parse an IPv6 packet
  61
  62         \see IPv6PacketType \n
  63             <a href="http://tools.ietf.org/html/rfc2460">RFC 2460</a>
  64      */
  65     struct IPv6PacketParser : public PacketParserBase
  66     {
  67 #       include SENF_FIXED_PARSER()
  68
  69         SENF_PARSER_BITFIELD( version,       4, unsigned );
  70         SENF_PARSER_BITFIELD( trafficClass,  8, unsigned );
  71         SENF_PARSER_BITFIELD( flowLabel,    20, unsigned );
  72
  73         SENF_PARSER_FIELD( length,       UInt16Parser       );
  74         SENF_PARSER_FIELD( nextHeader,   UInt8Parser        );
  75         SENF_PARSER_FIELD( hopLimit,     UInt8Parser        );
  76         SENF_PARSER_FIELD( source,       INet6AddressParser );
  77         SENF_PARSER_FIELD( destination,  INet6AddressParser );
  78
  79         SENF_PARSER_INIT() {
  80             version() = 6;
  81         }
  82
  83         SENF_PARSER_FINALIZE(IPv6PacketParser);
  84     };
  85
  86     /** \brief IPv6 packet
  87
  88         \par Packet type (typedef):
  89             \ref IPv6Packet
  90
  91         \par Fields:
  92             \ref IPv6PacketParser
  93
  94         \par Associated registries:
  95             \ref IpTypes
  96
  97         \par Finalize action:
  98             Set \a length from payload size\n
  99             Set \a nextHeader from type of next packet if found in \ref IpTypes
 100
 101         \ingroup protocolbundle_default
 102      */
 103     struct IPv6PacketType
 104         : public PacketTypeBase,
 105           public PacketTypeMixin<IPv6PacketType, IpTypes>
 106     {
 107 #ifndef DOXYGEN
 108         typedef PacketTypeMixin<IPv6PacketType, IpTypes> mixin;
 109         typedef ConcretePacket<IPv6PacketType> packet;
 110         typedef IPv6PacketParser parser;
 111 #endif
 112         using mixin::nextPacketRange;
 113         using mixin::nextPacketType;
 114         using mixin::initSize;
 115         using mixin::init;
 116
 117         static key_t nextPacketKey(packet p)
 118             { return p->nextHeader(); }
 119
 120         static void dump(packet p, std::ostream & os);
 121
 122         static void finalize(packet p);
 123     };
 124
 125     /** \brief IPv6 packet typedef */
 126     typedef ConcretePacket<IPv6PacketType> IPv6Packet;
 127
 128     ///@}
 129 }
 130
 131 ///////////////////////////////hh.e////////////////////////////////////////
 132 #endif
 133 #ifndef SENF_PACKETS_DECL_ONLY
 134 //#include "IPv6Packet.cci"
 135 //#include "IPv6Packet.ct"
 136 //#include "IPv6Packet.cti"
 137 #endif
 138
 139 \f
 140 // Local Variables:
 141 // mode: c++
 142 // fill-column: 100
 143 // c-file-style: "senf"
 144 // indent-tabs-mode: nil
 145 // ispell-local-dictionary: "american"
 146 // compile-command: "scons -u test"
 147 // comment-column: 40
 148 // End: