xsupconfwrite.c

Linux上的802.1x 的supplicant的实现。很多supplicant程序都是基于它开发的

	    {
#ifdef DEBUG
	      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	      return XSUPCONFWRITE_GENIOERR;
	    }
	  
	  comma = 1;
	}
      
      if (TEST_FLAG(cur->flags, CONFIG_NET_ALLOW_MD5))
	{
	  retval = xsupconfwrite_write_comma(fileid, comma);
	  if (retval < 0) return retval;
      
	  if (fprintf(fileid, "eap-md5") < 0) 
	    {
#ifdef DEBUG
	      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	      return XSUPCONFWRITE_GENIOERR;
	    }
	  
	  comma = 1;
	}
      
      if (TEST_FLAG(cur->flags, CONFIG_NET_ALLOW_TTLS))
	{
	  retval = xsupconfwrite_write_comma(fileid, comma);
	  if (retval < 0) return retval;

	  if (fprintf(fileid, "eap-ttls") < 0) 
	    {
#ifdef DEBUG
	      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	      return XSUPCONFWRITE_GENIOERR;
	    }
	  
	  comma = 1;
	}
      
      if (TEST_FLAG(cur->flags, CONFIG_NET_ALLOW_LEAP))
	{
	  retval = xsupconfwrite_write_comma(fileid, comma);
	  if (retval < 0) return retval;

	  if (fprintf(fileid, "eap-leap") < 0) 
	    {
#ifdef DEBUG
	      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	      return XSUPCONFWRITE_GENIOERR;
	    }
	  
	  comma = 1;
	}
      
      if (TEST_FLAG(cur->flags, CONFIG_NET_ALLOW_MSCV2))
	{
	  retval = xsupconfwrite_write_comma(fileid, comma);
	  if (retval < 0) return retval;

	  if (fprintf(fileid, "eap-mschapv2") < 0) 
	    {
#ifdef DEBUG
	      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	      return XSUPCONFWRITE_GENIOERR;
	    }
	  
	  comma = 1;
	}
      
      if (TEST_FLAG(cur->flags, CONFIG_NET_ALLOW_PEAP))
	{
	  retval = xsupconfwrite_write_comma(fileid, comma);
	  if (retval < 0) return retval;
      
	  if (fprintf(fileid, "eap-peap") < 0) 
	    {
#ifdef DEBUG
	      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	      return XSUPCONFWRITE_GENIOERR;
	    }
	  
	  comma = 1;
	}
      
      if (TEST_FLAG(cur->flags, CONFIG_NET_ALLOW_SIM))
	{
	  retval = xsupconfwrite_write_comma(fileid, comma);
	  if (retval < 0) return retval;

	  if (fprintf(fileid, "eap-sim") < 0) 
	    {
#ifdef DEBUG
	      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	      return XSUPCONFWRITE_GENIOERR;
	    }
	  
	  comma = 1;
	}
      
      if (TEST_FLAG(cur->flags, CONFIG_NET_ALLOW_GTC))
	{
	  retval = xsupconfwrite_write_comma(fileid, comma);
	  if (retval < 0) return retval;
      
	  if (fprintf(fileid, "eap-gtc") < 0) 
	    {
#ifdef DEBUG
	      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	      return XSUPCONFWRITE_GENIOERR;
	    }
	  
	  comma = 1;
	}
      
      if (TEST_FLAG(cur->flags, CONFIG_NET_ALLOW_OTP))
	{
	  retval = xsupconfwrite_write_comma(fileid, comma);
	  if (retval < 0) return retval;
      
	  if (fprintf(fileid, "eap-otp") < 0) 
	    {
#ifdef DEBUG
	      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	      return XSUPCONFWRITE_GENIOERR;
	    }
	  
	  comma = 1;
	}

      if (TEST_FLAG(cur->flags, CONFIG_NET_ALLOW_AKA))
	{
	  retval = xsupconfwrite_write_comma(fileid, comma);
	  if (retval < 0) return retval;
      
	  if (fprintf(fileid, "eap-aka") < 0) 
	    {
#ifdef DEBUG
	      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	      return XSUPCONFWRITE_GENIOERR;
	    }
	  
	  comma = 1;
	}
      
      if (TEST_FLAG(cur->flags, CONFIG_NET_ALLOW_WPA_PSK))
	{
	  retval = xsupconfwrite_write_comma(fileid, comma);
	  if (retval < 0) return retval;
      
	  if (fprintf(fileid, "wpa-psk") < 0) 
	    {
#ifdef DEBUG
	      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	      return XSUPCONFWRITE_GENIOERR;
	    }
	  
	  comma = 1;
	}
      
      if (fprintf(fileid, "\n\n") < 0) 
	{
#ifdef DEBUG
	  printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	  return XSUPCONFWRITE_GENIOERR;
	}
    }

  return XSUPCONFWRITE_ERRNONE;
}

/*******************************************************************
 *
 * Write the text representation of the crypto method we want to use.
 *
 *******************************************************************/
int xsupconfwrite_write_crypt(FILE *fileid, int crypt)
{
  switch (crypt)
    {
    case CRYPT_WEP40:
      if (fprintf(fileid, "WEP40") < 0) 
	{
#ifdef DEBUG
	  printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	  return XSUPCONFWRITE_GENIOERR;
	}
      break;

    case CRYPT_TKIP:
      if (fprintf(fileid, "TKIP") < 0) 
	{
#ifdef DEBUG
	  printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	  return XSUPCONFWRITE_GENIOERR;
	}
      break;

    case CRYPT_WRAP:
      // Nobody uses this one, but we put it in here for kicks anyway. ;)
      if (fprintf(fileid, "WRAP") < 0) 
	{
#ifdef DEBUG
	  printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	  return XSUPCONFWRITE_GENIOERR;
	}
      break;

    case CRYPT_CCMP:
      if (fprintf(fileid, "CCMP") < 0) 
	{
#ifdef DEBUG
	  printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	  return XSUPCONFWRITE_GENIOERR;
	}
      break;

    case CRYPT_WEP104:
      if (fprintf(fileid, "WEP104") < 0) 
	{
#ifdef DEBUG
	  printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	  return XSUPCONFWRITE_GENIOERR;
	}
      break;

    default:
      return XSUPCONFWRITE_INVALIDCRYPTO;
    }

  return XSUPCONFWRITE_ERRNONE;
}

/*******************************************************************
 *
 * Write the configuration information for the smartcard part of EAP-TLS
 * if it is needed.
 *
 *******************************************************************/
int xsupconfwrite_write_tls_smartcard(FILE *fileid, 
				      struct config_eap_tls *eaptls)
{
  if (!fileid)
    {
#ifdef DEBUG
      printf("Error : %s, at %s():%d!\n", 
	     xsupconfwrite_strerr(XSUPCONFWRITE_NOFILEHANDLE),
	     __FUNCTION__, __LINE__);
#endif
      return XSUPCONFWRITE_NOFILEHANDLE;
    }

  if (!eaptls)
    {
#ifdef DEBUG
      printf("Error : %s, at %s():%d!\n",
	     xsupconfwrite_strerr(XSUPCONFWRITE_NOEAPDATA),
	     __FUNCTION__, __LINE__);
#endif
      return XSUPCONFWRITE_NOEAPDATA;
    }

  // This is icky, but we need to determine if any of the smartcard values
  // contain valid data before we write anything to the file.
  if ((eaptls->sc.opensc_so_path) && ((eaptls->sc.engine_id) || 
				      (eaptls->sc.key_id)))
    {
      // We have valid data.
      if (fprintf(fileid, "\n\t\tsmartcard\n") < 0) 
	{
#ifdef DEBUG
	  printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	  return XSUPCONFWRITE_GENIOERR;
	}

      if (fprintf(fileid, "\t\t{\n") < 0)
	{
#ifdef DEBUG
	  printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	  return XSUPCONFWRITE_GENIOERR;
	}

      if (eaptls->sc.opensc_so_path)
	{
	  if (fprintf(fileid, "\t\t\topensc_so_path = \"%s\"\n",
		      eaptls->sc.opensc_so_path) < 0)
	    {
#ifdef DEBUG
	      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	      return XSUPCONFWRITE_GENIOERR;
	    }
	}

      if (eaptls->sc.engine_id)
	{
	  if (fprintf(fileid, "\t\t\tengine_id = %s\n",
		      eaptls->sc.engine_id) < 0)
	    {
#ifdef DEBUG
	      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	      return XSUPCONFWRITE_GENIOERR;
	    }
	}

      if (eaptls->sc.key_id)
	{
	  if (fprintf(fileid, "\t\t\tkey_id = %s\n",
		      eaptls->sc.key_id) < 0)
	    {
#ifdef DEBUG
	      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	      return XSUPCONFWRITE_GENIOERR;
	    }
	}

      if (fprintf(fileid, "\t\t}\n") < 0)
	{
#ifdef DEBUG
	  printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	  return XSUPCONFWRITE_GENIOERR;
	}
    }

  return XSUPCONFWRITE_ERRNONE;
}

/********************************************************************
 *
 * Write the configuration information for EAP-MD5
 *
 ********************************************************************/
int xsupconfwrite_eap_md5(FILE *fileid, struct config_eap_method *cur, 
			  int phase)
{
  struct config_eap_md5 *eapmd5;
  
  if (!fileid)
    {
#ifdef DEBUG
      printf("Error : %s, at %s():%d!\n", 
	     xsupconfwrite_strerr(XSUPCONFWRITE_NOFILEHANDLE),
	     __FUNCTION__, __LINE__);
#endif
      return XSUPCONFWRITE_NOFILEHANDLE;
    }
  
  if (!cur)
    {
#ifdef DEBUG
      printf("Error : %s, at %s():%d!\n",
	     xsupconfwrite_strerr(XSUPCONFWRITE_NOEAPDATA),
	     __FUNCTION__, __LINE__);
#endif
      return XSUPCONFWRITE_NOEAPDATA;
    }


  eapmd5 = (struct config_eap_md5 *)cur->method_data;

  if (!eapmd5)
    {
#ifdef DEBUG
      printf("The EAP-MD5 structure is NULL!\n");
#endif
      return XSUPCONFWRITE_NOEAPDATA;
    }

  if (phase ==2)
    {
      if (fprintf(fileid, "\t") < 0) 
	{
#ifdef DEBUG
	  printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	  return XSUPCONFWRITE_GENIOERR;
	}
    }

  if (fprintf(fileid, "\teap-md5\n") < 0) 
    {
#ifdef DEBUG
      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
      return XSUPCONFWRITE_GENIOERR;
    }

  if (phase ==2)
    {
      if (fprintf(fileid, "\t") < 0) 
	{
#ifdef DEBUG
	  printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	  return XSUPCONFWRITE_GENIOERR;
	}
    }

  if (fprintf(fileid, "\t{\n") < 0) 
    {
#ifdef DEBUG
      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
      return XSUPCONFWRITE_GENIOERR;
    }

  if (eapmd5->username)
    {
      if (phase ==2)
	{
	  if (fprintf(fileid, "\t") < 0) 
	    {
#ifdef DEBUG
	      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	      return XSUPCONFWRITE_GENIOERR;
	    }
	}

      if (fprintf(fileid, "\t\tusername = \"%s\"\n", eapmd5->username) < 0)
	{
#ifdef DEBUG
	  printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	  return XSUPCONFWRITE_GENIOERR;
	}
    }

  if (eapmd5->password)
    {
      if (phase ==2)
	{
	  if (fprintf(fileid, "\t") < 0) 
	    {
#ifdef DEBUG
	      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	      return XSUPCONFWRITE_GENIOERR;
	    }
	}

      if (fprintf(fileid, "\t\tpassword = \"%s\"\n", eapmd5->password) < 0)
	{
#ifdef DEBUG
	  printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	  return XSUPCONFWRITE_GENIOERR;
	}
    }

  if (phase ==2)
    {
      if (fprintf(fileid, "\t") < 0) 
	{
#ifdef DEBUG
	  printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	  return XSUPCONFWRITE_GENIOERR;
	}
    }

  if (fprintf(fileid, "\t}\n\n") < 0)
    {
#ifdef DEBUG
      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
      return XSUPCONFWRITE_GENIOERR;
    }
  
  return XSUPCONFWRITE_ERRNONE;  
}

/********************************************************************
 *
 * Write the configuration information for LEAP
 *
 ********************************************************************/
int xsupconfwrite_eap_leap(FILE *fileid, struct config_eap_method *cur,
			   int phase)
{
  struct config_eap_leap *eapleap;
  
  if (!fileid)
    {
#ifdef DEBUG
      printf("Error : %s, at %s():%d!\n", 
	     xsupconfwrite_strerr(XSUPCONFWRITE_NOFILEHANDLE),
	     __FUNCTION__, __LINE__);
#endif
      return XSUPCONFWRITE_NOFILEHANDLE;
    }
  
  if (!cur)
    {
#ifdef DEBUG
      printf("Error : %s, at %s():%d!\n",
	     xsupconfwrite_strerr(XSUPCONFWRITE_NOEAPDATA),
	     __FUNCTION__, __LINE__);
#endif
      return XSUPCONFWRITE_NOEAPDATA;
    }


  eapleap = (struct config_eap_leap *)cur->method_data;

  if (!eapleap)
    {
#ifdef DEBUG
      printf("The EAP-LEAP structure is NULL!\n");
#endif
      return XSUPCONFWRITE_NOEAPDATA;
    }

  if (phase ==2)
    {
      if (fprintf(fileid, "\t") < 0) 
	{
#ifdef DEBUG
	  printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
	  return XSUPCONFWRITE_GENIOERR;
	}
    }

  if (fprintf(fileid, "\teap-leap\n") < 0) 
    {
#ifdef DEBUG
      printf("Error writing to file @ %s():%d\n", __FUNCTION__, __LINE__);
#endif
      return XSUPCONFWRITE_GENIOERR;