eappeap.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                                                    */
/**************************************************************************/
/**
 * A client-side 802.1x implementation supporting EAP/TLS
 *
 * 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) 2002 Bryan D. Payne & Nick L. Petroni Jr.
 * 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
 *    must display the following acknowledgement:
 *       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
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */


/***
 *** Specifics for EAPTLS can be found in 
 *** IETF 2716
 ***/

#ifndef EAPPEAP_H
#define EAPPEAP_H
#include <sys/types.h>


/*********** MACRO DEFINITIONS ******************/
#define EAP_TYPE_PEAP 0x19   /* the EAP type of EAPTLS */
#define EAP_NAME_PEAP "PEAP"

#define l2n(l,c)        (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
                         *((c)++)=(unsigned char)(((l)>>16)&0xff), \
		         *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
		         *((c)++)=(unsigned char)(((l)    )&0xff))

#define n2l(c,l)        (l =((unsigned long)(*((c)++)))<<24, \
                         l|=((unsigned long)(*((c)++)))<<16, \
		         l|=((unsigned long)(*((c)++)))<< 8, \
		         l|=((unsigned long)(*((c)++))))

#define s2n(s,c)        (*((c)++)=(unsigned char)(((s)>> 8)&0xff), \
		         *((c)++)=(unsigned char)(((s)    )&0xff))

#define n2s(c,s)        (s =((unsigned short)(*((c)++)))<< 8, \
		         s|=((unsigned short)(*((c)++))))
/*********** STRUCTURE DEFINITIONS **************/

/*********** FUNCTION PROTOTYPES ****************/

/**
 * Initialize Function for EAPOL package 
 */
int init_eappeap(char *, char *);

//Clean up after ourselves.
int
eappeap_shutdown();

/**
 * Function to handle packets and manage state machine
 * for EAPTLS
 *
 * return -1 if fails
 *         0 otherwise
 */
int
eappeap_decode_packet(u_char *, /* The incoming eaptls packet */
		     int,      /* it's total length */
		     u_char *, /* The outgoing eaptls packet (if is one) */
		     int *    /* The length of that packet */
		     );

/**
 * Pump the data through OpenSSL.
 */
int eappeap_parse_data(u_char *,     /* Incoming SSL data */
		      int           /* Size of the data */
		      );

/**
 * Return hunks of data back to the server.
 */
int eappeap_return_data(u_char *,    /* Data to send out */
		       int *        /* Size of data to send out */
		       );

/**
 * Preparse TLS for a new handshake (the necessary setup before each)
 */
int eappeap_reset();

/**
 * blah
 */
int
eappeap_build_ack(u_char *out,
                 int *out_size
                 );

/**
 * blah
 */
int
eappeap_add_message(u_char *buf,
                   unsigned long length
		   );

/**
 * Request the password for the certificate.
 */
int
eappeap_auth_setup();

int peap_gen_keyblock();

#endif /* _EAPTLS_H_ */

/*** EOF ***/