xsupconfwrite_eap_mschapv2.c

linux 下通过802.1认证的安装包

/**
 * Implementation for converting variables that make up the EAP-MSCHAPv2 configuration section
 * to the libxml2 format that can be written to disk, or manipulated in other ways.
 *
 * Licensed under a dual GPL/BSD license.  (See LICENSE file for more info.)
 *
 * \file xsupconfwrite_eap_mschapv2.c
 *
 * \author [e-mail]
 *
 * $Id: xsupconfwrite_eap_mschapv2.c,v 1.1.2.8 2007/06/14 18:42:05 chessing Exp $
 * $Date: 2007/06/14 18:42:05 $
 **/

#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <stdlib.h>

#include <string.h>
#include <libxml/parser.h>

#ifndef WINDOWS
#include <stdint.h>
#endif

#include "../libxsupconfig/xsupconfig_structs.h"
#include "../../src/xsup_common.h"
#include "../libxsupconfig/xsupconfig.h"
#include "../libxsupconfig/xsupconfig_vars.h"
#include "xsupconfwrite_common.h"
#include "xsupconfwrite.h"

// Uncomment the #define below to enable textual debug output.
// #define WRITE_EAP_MSCHAPV2_DEBUG 1


/**
 * \brief Create an EAP-MSCHAPv2 block for the configuration file in a format
 *        that libxml2 can understand.
 *
 * @param[in] chap2data  A config_eap_mschapv2 structure that contains all of the
 *                       variables that we want to convert to XML.
 * @param[in] write_all   If set to TRUE, we will write all of the configuration
 *                        options to the XML node tree, no matter if their values
 *                        are set to the default or not.
 *
 * \retval NULL on error
 * \retval xmlNodePtr containing the EAP-MSCHAPv2 configuration tree in a format that is used by 
 *         libxml2.
 **/
xmlNodePtr xsupconfwrite_eap_mschapv2_create_tree(struct config_eap_mschapv2 *chap2data, 
									   	          char write_all)
{
	xmlNodePtr chap2node = NULL;
	char *temp = NULL;
	uint16_t ressize;
		
	if (chap2data == NULL) return NULL;

	chap2node = xsupconfwrite_common_newSibling(NULL, "Type", "MSCHAPv2");
	if (chap2node == NULL)
	{
#ifdef WRITE_EAP_MSCHAPV2_DEBUG
		printf("Couldn't create <Type> node for MSCHAPv2!\n");
#endif
		return NULL;
	}

	if ((write_all == TRUE) || (chap2data->password != NULL))
	{
		if ((chap2data->password != NULL) && (pwcrypt_funcs_available() == TRUE))
		{
			// Write the encrypted version.
			if (pwcrypt_encrypt(chap2data->password, strlen(chap2data->password), &temp, &ressize) != 0)
			{
				// Couldn't encrypt the data.  So write the cleartext version.
				xsupconfwrite_convert_amp(chap2data->password, &temp);
				if (xsupconfwrite_common_newSibling(chap2node, "Password", temp) == NULL)
				{
#ifdef WRITE_EAP_MSCHAPV2_DEBUG
					printf("Couldn't create <Password> node for MSCHAPv2.\n");
#endif
					xmlFreeNode(chap2node);
					free(temp);
					return NULL;
				}

				free(temp);
			}
			else
			{
				if (xsupconfwrite_common_newSibling(chap2node, "Encrypted_Password", temp) == NULL)
				{
#ifdef WRITE_EAP_MSCHAPV2_DEBUG
					printf("Couldn't create <Encrypted_Password> node.\n");
#endif
					xmlFreeNode(chap2node);
					free(temp);
					return NULL;
				}
				free(temp);
			}
		}
		else
		{
			xsupconfwrite_convert_amp(chap2data->password, &temp);
			if (xsupconfwrite_common_newSibling(chap2node, "Password", temp) == NULL)
			{
#ifdef WRITE_EAP_MSCHAPV2_DEBUG
				printf("Couldn't create <Password> node for MSCHAPv2.\n");
#endif
				xmlFreeNode(chap2node);
				free(temp);
				return NULL;
			}

			free(temp);
		}
	}

	if ((write_all == TRUE) || (chap2data->nthash != NULL))
	{
		if (xsupconfwrite_common_newSibling(chap2node, "NT_Password_Hash", chap2data->nthash) == NULL)
		{
#ifdef WRITE_EAP_MSCHAPV2_DEBUG
			printf("Couldn't create <NT_Password_Hash> node for MSCHAPv2!\n");
#endif
			xmlFreeNode(chap2node);
			return NULL;
		}
	}

	if ((write_all == TRUE) || (chap2data->ias_quirk != FALSE))
	{
		if (chap2data->ias_quirk != FALSE)
		{
			if (xsupconfwrite_common_newSibling(chap2node, "IAS_Quirk", "no") == NULL)
			{
#ifdef WRITE_EAP_MSCHAPV2_DEBUG
				printf("Couldn't create <IAS_Quirk> node for MSCHAPv2!\n");
#endif
				xmlFreeNode(chap2node);
				return NULL;
			}
		}
		else
		{
			if (xsupconfwrite_common_newSibling(chap2node, "IAS_Quirk", "yes") == NULL)
			{
#ifdef WRITE_EAP_MSCHAPV2_DEBUG
				printf("Couldn't create <IAS_Quirk> node for MSCHAPv2!\n");
#endif
				xmlFreeNode(chap2node);
				return NULL;
			}
		}
	}

	return chap2node;
}