developer.intra2net.com Git - pingcheck/blob - src/ip/ipv6header.h

   1 // Copyright (c) 2003-2010 Christopher M. Kohlhoff
   2 // Modifications (c) 2011 by Guilherme Maciel Ferreira / Intra2net AG
   3 //
   4 // Distributed under the Boost Software License, Version 1.0.
   5 //    (See accompanying file LICENSE_1_0.txt or copy at
   6 //          http://www.boost.org/LICENSE_1_0.txt)
   7 #ifndef IPV6_HEADER_H
   8 #define IPV6_HEADER_H
   9
  10 #include <stdint.h>
  11
  12 #include <boost/asio/ip/address_v6.hpp>
  13
  14 #include "ip/ipheader.h"
  15
  16 //-----------------------------------------------------------------------------
  17 // Ipv6Header
  18 //-----------------------------------------------------------------------------
  19
  20 /**
  21  * @brief This class represents the IP version 6 Packet Header.
  22  *
  23  * The IPv6 header format is:
  24  *
  25  * @code
  26  * 0      3 4            11 12   15 16          23 24            31
  27  * +-------+---------------+--------------------------------------+      ---
  28  * |       |               |                                      |       ^
  29  * |version| traffic class |              flow label              |       |
  30  * |  (6)  |               |                                      |       |
  31  * +-------+---------------+-------+--------------+---------------+       |
  32  * |                               |              |               |       |
  33  * |    payload length in bytes    | next header  |   hop limit   |       |
  34  * |                               |              |               |       |
  35  * +---------------+---------------+--------------+---------------+       |
  36  * |                                                              |       |
  37  * |                                                              |       |
  38  * |                                                              |       |
  39  * |                                                              |       |
  40  * |                                                              |       |
  41  * |                      source IPv6 address                     |       |
  42  * |                                                              |   40 bytes
  43  * |                                                              |       |
  44  * |                                                              |       |
  45  * |                                                              |       |
  46  * |                                                              |       |
  47  * |                                                              |       |
  48  * +--------------------------------------------------------------+       |
  49  * |                                                              |       |
  50  * |                                                              |       |
  51  * |                                                              |       |
  52  * |                                                              |       |
  53  * |                                                              |       |
  54  * |                   destination IPv6 address                   |       |
  55  * |                                                              |       |
  56  * |                                                              |       |
  57  * |                                                              |       |
  58  * |                                                              |       |
  59  * |                                                              |       |
  60  * |                                                              |       v
  61  * +--------------------------------------------------------------+      ---
  62  * @endcode
  63  */
  64 class Ipv6Header : public IpHeader
  65 {
  66 public:
  67     Ipv6Header();
  68
  69     uint8_t get_version() const;
  70     uint8_t get_differentiated_services() const;
  71     uint32_t get_flow_label() const;
  72
  73     uint16_t get_payload_length() const;
  74     uint8_t get_next_header() const;
  75     uint8_t get_hop_limit() const;
  76
  77     uint16_t get_header_length() const;
  78
  79     uint16_t get_total_length() const;
  80
  81     // in IPv6, this corresponds to the "HOP limit"
  82     uint8_t get_time_to_live() const;
  83
  84     boost::asio::ip::address get_source_address() const;
  85     boost::asio::ip::address get_destination_address() const;
  86
  87     friend std::istream &operator>>(
  88             std::istream &is,
  89             Ipv6Header &header
  90     );
  91
  92 };
  93
  94 #endif // IPV6_HEADER_H