include/wipal/wifi/dissector/dissector.hh

/*
 * WiPal - A library and a set of tools to manipulate wireless traces.
 * Copyright (C) 2007, 2008, 2009  Universite Pierre et Marie Curie - Paris 6
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA  02110-1301  USA
 *
 * Author: Thomas Claveirole <thomas.claveirole@lip6.fr>
 */
#ifndef WIFI_DISSECTOR_DISSECTOR_HH_
# define WIFI_DISSECTOR_DISSECTOR_HH_

# include <cstdlib>

# include <wipal/pcap/pkt.hh>
# include <wipal/wifi/mgt.hh>
# include <wipal/wifi/dissector/status.hh>

namespace wpl
{

  namespace wifi
  {

    struct dissector_default_hooks;

    template <class Hooks = dissector_default_hooks>
    struct dissector: public Hooks
    {
      dissector(const Hooks& = Hooks ());

      dissector(const void* frm, size_t caplen, const Hooks& hooks = Hooks ());

      dissector_status::status  status() const;

      void                      operator () (const void* frm, size_t caplen);


      Hooks&                    hooks();
      const Hooks&              hooks() const;

    private:

      enum length
      {
        control         = 2,
        duration        = 4,
        addr1           = 10,
        addr2           = 16,
        addr3           = 22,
        seqctl          = 24,
        addr4           = 30
      };

      void                      management_frame(const void*, size_t);
      void                      management_frame_dispatch(const mgt::header*,
                                                          size_t);

      void                      control_frame(const void*, size_t);

      void                      data_frame(const void*, size_t);
      void                      data_frame_dispatch(const void*, size_t);

      dissector_status::status  status_;
    };

    template <class PhyH, class Hooks, class Src>
    dissector<Hooks>
    dissect(const pkt::packet<Src>&     frm,
            const Hooks&                hooks = Hooks ());


  } // End of namespace wpl::wifi.

} // End of namespace wpl.

# include "dissector.hxx"

#endif // ! WIFI_DISSECTOR_DISSECTOR_HH_

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