include/wipal/wifi/data.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_FRAME_DATA_HH_
# define WIFI_FRAME_DATA_HH_

# include <wipal/wifi/addr.hh>

namespace wpl
{

  namespace wifi
  {

    namespace data
    {

      namespace subtype
      {

        enum frame_subtype
          {
            data                = 0, 
            data_cf_ack         = 1, 
            data_cf_poll        = 2, 
            data_cf_ack_cf_poll = 3, 
            null                = 4, 
            cf_ack              = 5, 
            cf_poll             = 6, 
            cf_ack_cf_poll      = 7  
          };

        extern const std::string        names[16];

      } // End of namespace wpl::wifi::data::subtype.

      struct header_3addr
      {
        uint16_t        frame_ctl;      
        uint16_t        duration;       
        addr            addrs[3];       
        uint16_t        seq_ctl;        
        uint8_t body[];                 
      } __attribute__((__packed__));

      struct header_4addr
      {
        uint16_t        frame_ctl;      
        uint16_t        duration;       
        addr            addrs[3];       
        uint16_t        seq_ctl;        
        addr            addrs_4;        
        uint8_t body[];                 
      } __attribute__((__packed__));

      namespace within_ibss
      {

        struct header : public header_3addr
        {
          enum addr_index
            {
              da        = 0,    
              sa        = 1,    
              bssid     = 2     
            };
        } __attribute__((__packed__));
      } // End of namespace wpl::wifi::data::within_ibss.

      namespace to_ds
      {

        struct header : public header_3addr
        {
          enum addr_index
            {
              bssid     = 0,    
              sa        = 1,    
              da        = 2     
            };
        } __attribute__((__packed__));
      } // End of namespace wpl::wifi::data::to_ds.

      namespace from_ds
      {

        struct header : public header_3addr
        {
          enum addr_index
            {
              da        = 0,    
              bssid     = 1,    
              sa        = 2     
            };
        } __attribute__((__packed__));
      } // End of namespace wpl::wifi::data::from_ds.

      namespace ap_to_ap
      {

        struct header
        {
          enum addr_index
            {
              ra        = 0,    
              ta        = 1,    
              da        = 2     
            };

          uint16_t      frame_ctl;      
          uint16_t      duration;       
          addr          addrs[3];       
          uint16_t      seq_ctl;        
          addr          addrs_sa;       
          uint8_t       body[];         
        } __attribute__((__packed__));

      } // End of namespace wpl::wifi::data::ap_to_ap.

    } // End of namespace wpl::wifi::data.

  } // End of namespace wpl::wifi.

} // End of namespace wpl.

#endif // ! WIFI_FRAME_DATA_HH_

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