userconf.cpp

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.
 */


#include <stdafx.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "userconf.h"

#ifndef DEBUG_USERCONF
#define DEBUG_USERCONF 0
#endif

struct userconf *user_settings=NULL;

void initalize_user_conf()
{
  user_settings = (struct userconf*)malloc(sizeof(struct userconf));
  if (user_settings == NULL)
    {
      return;
    }

  // Set all of our values to NULL.
  user_settings->username = NULL;
  user_settings->user_persist = 0;
  user_settings->password = NULL;
  user_settings->root_cert = NULL;
  user_settings->root_dir = NULL;
  user_settings->crl_dir = NULL;
  user_settings->client_cert = NULL;
  user_settings->key_file = NULL;
  user_settings->auth = NULL;
  user_settings->preferred_auth = NULL;
  user_settings->client_type = NULL;
  user_settings->chunk_size = 1398;     // EAPTLS_MAX_SIZE from older code.
  user_settings->random_file = NULL;
  user_settings->first_auth = NULL;
  user_settings->after_auth = NULL;
  user_settings->phase2auth = NULL;


}

void clear_user_settings()
{
  if (user_settings->username != NULL)
    {
      free(user_settings->username);
      user_settings->username = NULL;
    }
  if (user_settings->password != NULL)  
    {
      free(user_settings->password);
      user_settings->password = NULL;
    }
  if (user_settings->root_cert != NULL)  
    {
      free(user_settings->root_cert);
      user_settings->root_cert = NULL;
    }
  if (user_settings->root_dir != NULL)   
    {
      free(user_settings->root_dir);
      user_settings->root_dir = NULL;
    }
  if (user_settings->crl_dir != NULL)    
    {
      free(user_settings->crl_dir);
      user_settings->crl_dir = NULL;
    }
  if (user_settings->client_cert != NULL)  
    {
      free(user_settings->client_cert);
      user_settings->client_cert = NULL;
    }
  if (user_settings->key_file != NULL)  
    {
      free(user_settings->key_file);
      user_settings->key_file = NULL;
    }
  if (user_settings->auth != NULL)  
    {
      free(user_settings->auth);
      user_settings->auth = NULL;
    }
  if (user_settings->preferred_auth != NULL)  
    {
      free(user_settings->preferred_auth);
      user_settings->preferred_auth = NULL;
    }
  if (user_settings->random_file != NULL) 
    {
      free(user_settings->random_file);
      user_settings->random_file = NULL;
    }
  if (user_settings->first_auth != NULL) 
    {
      free(user_settings->first_auth);
      user_settings->first_auth = NULL;
    }
  if (user_settings->after_auth != NULL) 
    {
      free(user_settings->after_auth);
      user_settings->after_auth = NULL;
    }
  if (user_settings->phase2auth != NULL) 
    {
      free(user_settings->phase2auth);
      user_settings->phase2auth = NULL;
    }
}

void clean_user_conf()
{
  clear_user_settings();
  free(user_settings);

}
void str_set1(char *to_set, char *value, char *to_persist, int persist, int maxlen)
{
  if (!((to_persist != NULL) && (*to_persist == 1)))
    {
      if (value != NULL)
	{
	  strncpy(to_set, value, maxlen);
	  if (to_persist != NULL) 
	    {
	      *to_persist = persist;
	    }
	}
    }
}
void str_set(char **to_set, char *value, char *to_persist, int persist)
{
  if (!((to_persist != NULL) && (*to_persist == 1)))
    {
      if (value != NULL)
	{
	  if (*to_set != NULL)
	    {
	      free(*to_set);
	      *to_set = NULL;
	    }
	
	  *to_set = (char *)malloc(strlen(value)+1);
	  if (*to_set == NULL)
	    {
	      return;
	    }
	  strncpy(*to_set, value, strlen(value)+1);
	  if (to_persist != NULL) 
	      *to_persist = persist;
	}
    }
}

char *str_get(char *getval)
{
  char *return_val=NULL;

  if (getval == NULL) return NULL;

  return_val = (char *)malloc(strlen(getval)+1);
  if (return_val == NULL)
    {
      return NULL;
    }
  strncpy(return_val, getval, strlen(getval)+1);
  
  return return_val;
}

char *get_username()
{
  return str_get(user_settings->username);
}

void set_username(char *in_username, char persist)
{
  str_set(&user_settings->username, in_username, &user_settings->user_persist, persist);
}

char *get_password()
{
  return str_get(user_settings->password);
}

void set_password(char *in_password)
{
  str_set(&user_settings->password, in_password, NULL, 0);
}

char *get_root_cert()
{
  return str_get(user_settings->root_cert);
}

void set_root_cert(char *in_root_cert)
{
  str_set(&user_settings->root_cert, in_root_cert, NULL, 0);
}

char *get_client_cert()
{
  return str_get(user_settings->client_cert);
}

void set_client_cert(char *in_client_cert)
{
  str_set(&user_settings->client_cert, in_client_cert, NULL, 0);
}

char *get_root_dir()
{
  return str_get(user_settings->root_dir);
}

void set_root_dir(char *in_root_dir)
{
  str_set(&user_settings->root_dir, in_root_dir, NULL, 0);
}

char *get_crl_dir()
{
  return str_get(user_settings->crl_dir);
}

void set_crl_dir(char *in_crl_dir)
{
  str_set(&user_settings->crl_dir, in_crl_dir, NULL, 0);
}

char *get_key_file()
{
  return str_get(user_settings->key_file);
}

void set_key_file(char *in_key_file)
{
  str_set(&user_settings->key_file, in_key_file, NULL, 0);
}

char *get_auth()
{
  return str_get(user_settings->auth);
}

void set_auth(char *in_auth)
{
  str_set(&user_settings->auth, in_auth, NULL, 0);
}

char *get_preferred_auth()
{
  return str_get(user_settings->preferred_auth);
}

// We need to read the string in and set it to upper case.
void set_preferred_auth(char *in_preferred_auth)
{
  int i=0;

  if (in_preferred_auth != NULL)
    {
      // Make sure the value we are passed is in all CAPS!
      for (i=0; i<=strlen(in_preferred_auth); i++) 
	{
	  in_preferred_auth[i] = toupper(in_preferred_auth[i]);
	}
      str_set(&user_settings->preferred_auth, in_preferred_auth, NULL, 0);
    }
}

char *get_client_type()
{
  return str_get(user_settings->client_type);
}

void set_client_type(char *in_client_type)
{
  int i=0;
  char *tempstr;

  if (in_client_type != NULL) 
    {
      tempstr = (char *)malloc(strlen(in_client_type)+1);
      if (tempstr == NULL)
	{
	  return;
	}
      strncpy(tempstr, in_client_type, strlen(in_client_type)+1);
      // Make sure the value we are passed is in all CAPS!
      for (i=0; i<=strlen(tempstr); i++)
	{
	  tempstr[i] = toupper(tempstr[i]);
	}
      str_set(&user_settings->client_type, tempstr, NULL, 0);
      free(tempstr);
      tempstr = NULL;
    }
}

int get_chunk_size()
{
  return user_settings->chunk_size;
}

void set_chunk_size(int new_size)
{
  if (new_size<=0)
    {
      return;
    }

  user_settings->chunk_size = new_size;
}

char *get_random_file()
{
  return str_get(user_settings->random_file);
}

void set_random_file(char *new_random_file)
{
  str_set(&user_settings->random_file, new_random_file, NULL, 0);
}

char *get_first_auth()
{
  return str_get(user_settings->first_auth);
}

void set_first_auth(char *new_first_auth)
{
  str_set(&user_settings->first_auth, new_first_auth, NULL, 0);
}

char *get_after_auth()
{
  return str_get(user_settings->after_auth);
}

void set_after_auth(char *new_after_auth)
{
  str_set(&user_settings->after_auth, new_after_auth, NULL, 0);
}

char *get_phase2auth()
{
  return str_get(user_settings->phase2auth);
}


void set_phase2auth(char *new_phase2auth)
{
  str_set(&user_settings->phase2auth, new_phase2auth, NULL, 0);
}

char *get_phase2id()
{
  char *phase2_id_ret;

  phase2_id_ret = str_get(user_settings->phase2id);

  if (phase2_id_ret == NULL) return str_get(user_settings->username);

  // Otherwise, go ahead and return the "correct" value.
  return phase2_id_ret;
}

void set_phase2id(char *new_phase2id)
{
  str_set1((char *)&user_settings->phase2id, new_phase2id, NULL, 0, 255);
}
void print_userconf()
{
  printf("--Printing user configuration--\n");
  printf("username: %s\n", get_username());
  printf("root cert: %s\n", get_root_cert());
  printf("client cert: %s\n", get_client_cert());
  printf("key file: %s\n", get_key_file());
  printf("auth type: %s\n", get_auth());
  printf("preferred auth: %s\n", get_preferred_auth());
  printf("client type: %s\n", get_client_type());
  printf("chunk size: %d\n", get_chunk_size());
  printf("random file: %s\n", get_random_file());
  printf("first auth: %s\n", get_first_auth());
  printf("after auth: %s\n", get_after_auth());
  printf("phase2 auth: %s\n", get_phase2auth());
  printf("-------------------------------\n");
}