os_frame_funcs.h

source_code 实现无线局域网中的802.1x功能

/**************************************************************************/
/* WIRE1x Version 1.0: A client-side 802.1x implementation                */
/* based on xsupplicant of Open1x for Windows XP, 2000, 98, and Me        */
/*                                                                        */
/* This code is released under both the GPL version 2 and BSD licenses.   */
/* Either license may be used.  The respective licenses are found below.  */
/*                                                                        */
/* Copyright (C) 2004, WIRE Lab, National Tsing Hua Univ., Hsinchu, Taiwan*/
/* All Rights Reserved                                                    */
/**************************************************************************/
/*
 * --- GPL Version 2 License ---
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * --- BSD License ---
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  - Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *  - Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *  - All advertising materials mentioning features or use of this software
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 *       This product includes software developed by the University of
 *       Maryland at College Park and its contributors.
 *  - Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 */

#ifndef OS_FRAME_FUNCS_H
#define OS_FRAME_FUNCS_H

// Different Types of EAPOL Messages we might need.
#define EAPOL_PACKET    0
#define EAPOL_START     1
#define EAPOL_LOGOFF    2
#define EAPOL_KEY       3
#define EAPOL_ASF_ALERT 4

// Different EAPOL codes
#define CODE_REQUEST    1
#define CODE_RESPONSE   2
#define CODE_SUCCESS    3
#define CODE_FAILURE    4

// The EAPOL Type code for the Ethernet Header
#define EAPOL_TYPE_CODE 0x888e

// The structs below are to be used to overlay on a complete frame in order
// to read/edit specific fields in the frame.

struct frame_data {
  u_char dest[6];
  u_char src[6];
  u_char type[2];
};

struct my_eapol_header {
  u_char ether_header[14];
  u_char eapol_version;
  u_char eapol_type;
  uint16_t eapol_length;
};

struct my_eapol_packet {
  uint8_t ether_header[14];
  uint8_t eapol_header_data[4];
  uint8_t code;
  uint8_t identifier;
  uint16_t length;
  uint8_t type;
};

u_char *get_frame(int);       // Return a pointer to a frame.
char *initalize_frame_funcs(char *, int, int);
u_char *get_src_mac();
char *send_frame(u_char *, int);
char *get_dev_name();
u_char *get_working_frame();
int shutdown_frame_funcs();
void done_with_current_frame();
int more_frames();
void allow_sleep(int);

#endif