Packets/DefaultBundle/ICMPv6Packet.hh

   1 // Copyright (C) 2008
   2 // Fraunhofer Institute for Open Communication Systems (FOKUS)
   3 // Competence Center NETwork research (NET), St. Augustin, GERMANY
   4 //     Philipp Batroff <Philipp.Batroff@fokus.fraunhofer.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 #ifndef HH_ICMPV6Packet
  22 #define HH_ICMPV6Packet
  23
  24 // Custom includes
  25 #include "../../Packets/Packets.hh"
  26 #include "../../Packets/DefaultBundle/IPv6Packet.hh"
  27
  28 namespace senf{
  29     struct ICMPV6PacketParser : public senf::PacketParserBase
  30     {
  31     #       include SENF_FIXED_PARSER()
  32             SENF_PARSER_FIELD    ( type, senf::UInt8Parser );
  33             SENF_PARSER_FIELD    ( code, senf::UInt8Parser );
  34             SENF_PARSER_PRIVATE_FIELD ( checksum, senf::UInt16Parser);
  35
  36             SENF_PARSER_FINALIZE ( ICMPV6PacketParser );
  37
  38             void calcChecksum() const;
  39             boost::uint16_t checksumOutput() const
  40                 { return this->checksum();}
  41     };
  42
  43         struct ICMPTypes {
  44             // ICMP type registry
  45             typedef boost::uint16_t key_t;
  46         };
  47
  48     struct ICMPV6PacketType
  49             : public senf::PacketTypeBase,
  50             public senf::PacketTypeMixin<ICMPV6PacketType, ICMPTypes>
  51     {
  52         typedef senf::PacketTypeMixin<ICMPV6PacketType, ICMPTypes> mixin;
  53         typedef senf::ConcretePacket<ICMPV6PacketType> packet;
  54         typedef ICMPV6PacketParser parser;
  55
  56         using mixin::nextPacketRange;
  57         using mixin::nextPacketType;
  58         using mixin::init;
  59         using mixin::initSize;
  60
  61         static void dump(packet p, std::ostream & os);
  62         static senf::IpTypes::key_t nextPacketKey(packet p) {
  63             return p->type();
  64         }
  65         static void finalize(packet p) {
  66             p->calcChecksum();
  67             p->type() << key(p.next(senf::nothrow));
  68         }
  69     };
  70
  71     typedef ICMPV6PacketType::packet ICMPv6Packet;
  72 }
  73 #endif