text: /*
   * WPA Supplicant / Configuration backend: text file
   * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   *
   * Alternatively, this software may be distributed under the terms of BSD
   * license.
   *
   * See README and COPYING for more details.
   *
   * This file implements a configuration backend for text files. All the
   * configuration information is stored in a text file that uses a format
   * described in the sample configuration file, wpa_supplicant.conf.
   */
  
  #include "includes.h"
  
  #include "common.h"
  #include "config.h"
  #include "base64.h"
  #include "uuid.h"
  //#include "eap_peer/eap_methods.h"
  
  
  /**
   * wpa_config_get_line - Read the next configuration file line
   * @s: Buffer for the line
   * @size: The buffer length
   * @stream: File stream to read from
   * @line: Pointer to a variable storing the file line number
   * @_pos: Buffer for the pointer to the beginning of data on the text line or
   * %NULL if not needed (returned value used instead)
   * Returns: Pointer to the beginning of data on the text line or %NULL if no
   * more text lines are available.
   *
   * This function reads the next non-empty line from the configuration file and
   * removes comments. The returned string is guaranteed to be null-terminated.
   */
  static char * wpa_config_get_line(char *s, int size, FILE *stream, int *line,
  				  char **_pos)
  {
  	char *pos, *end, *sstart;
  
  	while (fgets(s, size, stream)) {
  		(*line)++;
  		s[size - 1] = '\0';
  		pos = s;
  
  		/* Skip white space from the beginning of line. */
  		while (*pos == ' ' || *pos == '\t' || *pos == '\r')
  			pos++;
  
  		/* Skip comment lines and empty lines */
  		if (*pos == '#' || *pos == '\n' || *pos == '\0')
  			continue;
  
  		/*
  		 * Remove # comments unless they are within a double quoted
  		 * string.
  		 */
  		sstart = os_strchr(pos, '"');
  		if (sstart)
  			sstart = os_strrchr(sstart + 1, '"');
  		if (!sstart)
  			sstart = pos;
  		end = os_strchr(sstart, '#');
  		if (end)
  			*end-- = '\0';
  		else
  			end = pos + os_strlen(pos) - 1;
  
  		/* Remove trailing white space. */
  		while (end > pos &&
  		       (*end == '\n' || *end == ' ' || *end == '\t' ||
  			*end == '\r'))
  			*end-- = '\0';
  
  		if (*pos == '\0')
  			continue;
  
  		if (_pos)
  			*_pos = pos;
  		return pos;
  	}
  
  	if (_pos)
  		*_pos = NULL;
  	return NULL;
  }
  
  
  static int wpa_config_validate_network(struct wpa_ssid *ssid, int line)
  {
  	int errors = 0;
  
  	if (ssid->passphrase) {
  		if (ssid->psk_set) {
  			wpa_printf(MSG_ERROR, "Line %d: both PSK and "
  				   "passphrase configured.", line);
  			errors++;
  		}
  		wpa_config_update_psk(ssid);
  	}
  
  	if ((ssid->key_mgmt & (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_FT_PSK |
  			       WPA_KEY_MGMT_PSK_SHA256)) &&
  	    !ssid->psk_set) {
  		wpa_printf(MSG_ERROR, "Line %d: WPA-PSK accepted for key "
  			   "management, but no PSK configured.", line);
  		errors++;
  	}
  
  	if ((ssid->group_cipher & WPA_CIPHER_CCMP) &&
  	    !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
  	    !(ssid->pairwise_cipher & WPA_CIPHER_NONE)) {
  		/* Group cipher cannot be stronger than the pairwise cipher. */
  		wpa_printf(MSG_DEBUG, "Line %d: removed CCMP from group cipher"
  			   " list since it was not allowed for pairwise "
  			   "cipher", line);
  		ssid->group_cipher &= ~WPA_CIPHER_CCMP;
  	}
  
  	return errors;
  }
  
  
  static struct wpa_ssid * wpa_config_read_network(FILE *f, int *line, int id)
  {
  	struct wpa_ssid *ssid;
  	int errors = 0, end = 0;
  	char buf[256], *pos, *pos2;
  
  	wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new network block",
  		   *line);
  	ssid = os_zalloc(sizeof(*ssid));
  	if (ssid == NULL)
  		return NULL;
  	ssid->id = id;
  
  	wpa_config_set_network_defaults(ssid);
  
  	while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
  		if (os_strcmp(pos, "}") == 0) {
  			end = 1;
  			break;
  		}
  
  		pos2 = os_strchr(pos, '=');
  		if (pos2 == NULL) {
  			wpa_printf(MSG_ERROR, "Line %d: Invalid SSID line "
  				   "'%s'.", *line, pos);
  			errors++;
  			continue;
  		}
  
  		*pos2++ = '\0';
  		if (*pos2 == '"') {
  			if (os_strchr(pos2 + 1, '"') == NULL) {
  				wpa_printf(MSG_ERROR, "Line %d: invalid "
  					   "quotation '%s'.", *line, pos2);
  				errors++;
  				continue;
  			}
  		}
  
  		if (wpa_config_set(ssid, pos, pos2, *line) < 0)
  			errors++;
  	}
  
  	if (!end) {
  		wpa_printf(MSG_ERROR, "Line %d: network block was not "
  			   "terminated properly.", *line);
  		errors++;
  	}
  
  	errors += wpa_config_validate_network(ssid, *line);
  
  	if (errors) {
  		wpa_config_free_ssid(ssid);
  		ssid = NULL;
  	}
  
  	return ssid;
  }
  
  
  #ifndef CONFIG_NO_CONFIG_BLOBS
  #if 0
  static struct wpa_config_blob * wpa_config_read_blob(FILE *f, int *line,
  						     const char *name)
  {
  	struct wpa_config_blob *blob;
  	char buf[256], *pos;
  	unsigned char *encoded = NULL, *nencoded;
  	int end = 0;
  	size_t encoded_len = 0, len;
  
  	wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new named blob '%s'",
  		   *line, name);
  
  	while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
  		if (os_strcmp(pos, "}") == 0) {
  			end = 1;
  			break;
  		}
  
  		len = os_strlen(pos);
  		nencoded = os_realloc(encoded, encoded_len + len);
  		if (nencoded == NULL) {
  			wpa_printf(MSG_ERROR, "Line %d: not enough memory for "
  				   "blob", *line);
  			os_free(encoded);
  			return NULL;
  		}
  		encoded = nencoded;
  		os_memcpy(encoded + encoded_len, pos, len);
  		encoded_len += len;
  	}
  
  	if (!end) {
  		wpa_printf(MSG_ERROR, "Line %d: blob was not terminated "
  			   "properly", *line);
  		os_free(encoded);
  		return NULL;
  	}
  
  	blob = os_zalloc(sizeof(*blob));
  	if (blob == NULL) {
  		os_free(encoded);
  		return NULL;
  	}
  	blob->name = os_strdup(name);
  	blob->data = base64_decode(encoded, encoded_len, &blob->len);
  	os_free(encoded);
  
  	if (blob->name == NULL || blob->data == NULL) {
  		wpa_config_free_blob(blob);
  		return NULL;
  	}
  
  	return blob;
  }
  #endif //#if 0
  
  #if 0
  static int wpa_config_process_blob(struct wpa_config *config, FILE *f,
  				   int *line, char *bname)
  {
  	char *name_end;
  	struct wpa_config_blob *blob;
  
  	name_end = os_strchr(bname, '=');
  	if (name_end == NULL) {
  		wpa_printf(MSG_ERROR, "Line %d: no blob name terminator",
  			   *line);
  		return -1;
  	}
  	*name_end = '\0';
  
  	blob = wpa_config_read_blob(f, line, bname);
  	if (blob == NULL) {
  		wpa_printf(MSG_ERROR, "Line %d: failed to read blob %s",
  			   *line, bname);
  		return -1;
  	}
  	wpa_config_set_blob(config, blob);
  	return 0;
  }
  #endif //#if 0
  #endif /* CONFIG_NO_CONFIG_BLOBS */
  
  
  struct global_parse_data {
  	char *name;
  	int (*parser)(const struct global_parse_data *data,
  		      struct wpa_config *config, int line, const char *value);
  	void *param1, *param2, *param3;
  };
  
  
  static int wpa_config_parse_int(const struct global_parse_data *data,
  				struct wpa_config *config, int line,
  				const char *pos)
  {
  	int *dst;
  	dst = (int *) (((u8 *) config) + (long) data->param1);
  	*dst = atoi(pos);
  	wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
  
  	if (data->param2 && *dst < (long) data->param2) {
  		wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
  			   "min_value=%ld)", line, data->name, *dst,
  			   (long) data->param2);
  		*dst = (long) data->param2;
  		return -1;
  	}
  
  	if (data->param3 && *dst > (long) data->param3) {
  		wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
  			   "max_value=%ld)", line, data->name, *dst,
  			   (long) data->param3);
  		*dst = (long) data->param3;
  		return -1;
  	}
  
  	return 0;
  }
  
  
  static int wpa_config_parse_str(const struct global_parse_data *data,
  				struct wpa_config *config, int line,
  				const char *pos)
  {
  	size_t len;
  	char **dst, *tmp;
  
  	len = os_strlen(pos);
  	if (data->param2 && len < (size_t) data->param2) {
  		wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
  			   "min_len=%ld)", line, data->name,
  			   (unsigned long) len, (long) data->param2);
  		return -1;
  	}
  
  	if (data->param3 && len > (size_t) data->param3) {
  		wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
  			   "max_len=%ld)", line, data->name,
  			   (unsigned long) len, (long) data->param3);
  		return -1;
  	}
  
  	tmp = os_strdup(pos);
  	if (tmp == NULL)
  		return -1;
  
  	dst = (char **) (((u8 *) config) + (long) data->param1);
  	os_free(*dst);
  	*dst = tmp;
  	wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
  
  	return 0;
  }
  
  #if 0
  static int wpa_config_process_country(const struct global_parse_data *data,
  				      struct wpa_config *config, int line,
  				      const char *pos)
  {
  	if (!pos[0] || !pos[1]) {
  		wpa_printf(MSG_DEBUG, "Invalid country set");
  		return -1;
  	}
  	config->country[0] = pos[0];
  	config->country[1] = pos[1];
  	wpa_printf(MSG_DEBUG, "country='%c%c'",
  		   config->country[0], config->country[1]);
  	return 0;
  }
  #endif
  
  #if 0
  static int wpa_config_process_load_dynamic_eap(
  	const struct global_parse_data *data, struct wpa_config *config,
  	int line, const char *so)
  {
  	int ret;
  	wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
  	ret = eap_peer_method_load(so);
  	if (ret == -2) {
  		wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
  			   "reloading.");
  	} else if (ret) {
  		wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
  			   "method '%s'.", line, so);
  		return -1;
  	}
  
  	return 0;
  }
  #endif
  
  #ifdef CONFIG_WPS
  
  #if 0
  static int wpa_config_process_uuid(const struct global_parse_data *data,
  				   struct wpa_config *config, int line,
  				   const char *pos)
  {
  	char buf[40];
  	if (uuid_str2bin(pos, config->uuid)) {
  		wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
  		return -1;
  	}
  	uuid_bin2str(config->uuid, buf, sizeof(buf));
  	wpa_printf(MSG_DEBUG, "uuid=%s", buf);
  	return 0;
  }
  static int wpa_config_process_os_version(const struct global_parse_data *data,
  					 struct wpa_config *config, int line,
  					 const char *pos)
  {
  	if (hexstr2bin(pos, config->os_version, 4)) {
  		wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
  		return -1;
  	}
  	wpa_printf(MSG_DEBUG, "os_version=%08x",
  		   WPA_GET_BE32(config->os_version));
  	return 0;
  }
  #endif /* CONFIG_WPS */
  #endif //#if 0
  
  
  #ifdef OFFSET
  #undef OFFSET
  #endif /* OFFSET */
  /* OFFSET: Get offset of a variable within the wpa_config structure */
  #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
  
  #define FUNC(f) #f, wpa_config_process_ ## f, OFFSET(f), NULL, NULL
  #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL
  #define _INT(f) #f, wpa_config_parse_int, OFFSET(f)
  #define INT(f) _INT(f), NULL, NULL
  #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
  #define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
  #define STR(f) _STR(f), NULL, NULL
  #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
  
  static const struct global_parse_data global_fields[] = {
  #ifdef CONFIG_CTRL_IFACE
  	{ STR(ctrl_interface) },
  	{ STR(ctrl_interface_group) } /* deprecated */,
  #endif /* CONFIG_CTRL_IFACE */
  	{ INT_RANGE(eapol_version, 1, 2) },
  	{ INT(ap_scan) },
  	{ INT(fast_reauth) },
  	//{ STR(opensc_engine_path) },
  	{ STR(pkcs11_engine_path) },
  	{ STR(pkcs11_module_path) },
  	{ STR(driver_param) },
  	{ INT(dot11RSNAConfigPMKLifetime) },
  	{ INT(dot11RSNAConfigPMKReauthThreshold) },
  	{ INT(dot11RSNAConfigSATimeout) },
  #ifndef CONFIG_NO_CONFIG_WRITE
  	{ INT(update_config) },
  #endif /* CONFIG_NO_CONFIG_WRITE */
  	//{ FUNC_NO_VAR(load_dynamic_eap) },
  
  #if 0
  #ifdef CONFIG_WPS
  	{ FUNC(uuid) },
  	{ STR_RANGE(device_name, 0, 32) },
  	{ STR_RANGE(manufacturer, 0, 64) },
  	{ STR_RANGE(model_name, 0, 32) },
  	{ STR_RANGE(model_number, 0, 32) },
  	{ STR_RANGE(serial_number, 0, 32) },
  	{ STR(device_type) },
  	{ FUNC(os_version) },
  	{ STR(config_methods) },
  	{ INT_RANGE(wps_cred_processing, 0, 2) },
  #endif /* CONFIG_WPS */
  #endif //#if 0
  
  	//{ FUNC(country) },
  	{ INT(bss_max_count) },
  	{ INT_RANGE(filter_ssids, 0, 1) }
  };
  
  #undef FUNC
  #undef _INT
  #undef INT
  #undef INT_RANGE
  #undef _STR
  #undef STR
  #undef STR_RANGE
  #define NUM_GLOBAL_FIELDS (sizeof(global_fields) / sizeof(global_fields[0]))
  
  #if 0
  static int wpa_config_process_global(struct wpa_config *config, char *pos,
  				     int line)
  {
  	size_t i;
  	int ret = 0;
  
  	for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
  		const struct global_parse_data *field = &global_fields[i];
  		size_t flen = os_strlen(field->name);
  		if (os_strncmp(pos, field->name, flen) != 0 ||
  		    pos[flen] != '=')
  			continue;
  
  		if (field->parser(field, config, line, pos + flen + 1)) {
  			wpa_printf(MSG_ERROR, "Line %d: failed to "
  				   "parse '%s'.", line, pos);
  			ret = -1;
  		}
  		break;
  	}
  	if (i == NUM_GLOBAL_FIELDS) {
  		wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
  			   line, pos);
  		ret = -1;
  	}
  
  	return ret;
  }
  #endif //#if 0
  
  struct wpa_config * wpa_config_read(const char *name)
  {
  	FILE *f;
  	char buf[256], *pos;
  	int errors = 0, line = 0;
  	struct wpa_ssid *ssid, *tail = NULL, *head = NULL;
  	struct wpa_config *config;
  	int id = 0;
  
  	config = wpa_config_alloc_empty(NULL, NULL);
  	if (config == NULL)
  		return NULL;
  	wpa_printf(MSG_DEBUG, "Reading configuration file '%s'", name);
  	f = fopen(name, "r");
  	if (f == NULL) {
  		os_free(config);
  		return NULL;
  	}
  
  #if 0
  	while (wpa_config_get_line(buf, sizeof(buf), f, &line, &pos)) {
  		if (os_strcmp(pos, "network={") == 0) {
  			ssid = wpa_config_read_network(f, &line, id++);
  			if (ssid == NULL) {
  				wpa_printf(MSG_ERROR, "Line %d: failed to "
  					   "parse network block.", line);
  				errors++;
  				continue;
  			}
  			if (head == NULL) {
  				head = tail = ssid;
  			} else {
  				tail->next = ssid;
  				tail = ssid;
  			}
  			if (wpa_config_add_prio_network(config, ssid)) {
  				wpa_printf(MSG_ERROR, "Line %d: failed to add "
  					   "network block to priority list.",
  					   line);
  				errors++;
  				continue;
  			}
  #if 0
  #ifndef CONFIG_NO_CONFIG_BLOBS
  		} else if (os_strncmp(pos, "blob-base64-", 12) == 0) {
  			if (wpa_config_process_blob(config, f, &line, pos + 12)
  			    < 0) {
  				errors++;
  				continue;
  			}
  #endif /* CONFIG_NO_CONFIG_BLOBS */
  #endif
  
  		} else if (wpa_config_process_global(config, pos, line) < 0) {
  			wpa_printf(MSG_ERROR, "Line %d: Invalid configuration "
  				   "line '%s'.", line, pos);
  			errors++;
  			continue;
  		}
  	}
  #endif //#if 0
  
  	fclose(f);
  
  	config->ssid = head;
      
  	//wpa_config_debug_dump_networks(config);
  
  	if (errors) {
  		wpa_config_free(config);
  		config = NULL;
  		head = NULL;
  	}
  
  	return config;
  }
  
  
  #ifndef CONFIG_NO_CONFIG_WRITE
  
  static void write_str(FILE *f, const char *field, struct wpa_ssid *ssid)
  {
  	char *value = wpa_config_get(ssid, field);
  	if (value == NULL)
  		return;
  	fprintf(f, "\t%s=%s\n", field, value);
  	os_free(value);
  }
  
  
  static void write_int(FILE *f, const char *field, int value, int def)
  {
  	if (value == def)
  		return;
  	fprintf(f, "\t%s=%d\n", field, value);
  }
  
  
  static void write_bssid(FILE *f, struct wpa_ssid *ssid)
  {
  	char *value = wpa_config_get(ssid, "bssid");
  	if (value == NULL)
  		return;
  	fprintf(f, "\tbssid=%s\n", value);
  	os_free(value);
  }
  
  
  static void write_psk(FILE *f, struct wpa_ssid *ssid)
  {
  	char *value = wpa_config_get(ssid, "psk");
  	if (value == NULL)
  		return;
  	fprintf(f, "\tpsk=%s\n", value);
  	os_free(value);
  }
  
  
  static void write_proto(FILE *f, struct wpa_ssid *ssid)
  {
  	char *value;
  
  	if (ssid->proto == DEFAULT_PROTO)
  		return;
  
  	value = wpa_config_get(ssid, "proto");
  	if (value == NULL)
  		return;
  	if (value[0])
  		fprintf(f, "\tproto=%s\n", value);
  	os_free(value);
  }
  
  
  static void write_key_mgmt(FILE *f, struct wpa_ssid *ssid)
  {
  	char *value;
  
  	if (ssid->key_mgmt == DEFAULT_KEY_MGMT)
  		return;
  
  	value = wpa_config_get(ssid, "key_mgmt");
  	if (value == NULL)
  		return;
  	if (value[0])
  		fprintf(f, "\tkey_mgmt=%s\n", value);
  	os_free(value);
  }
  
  
  static void write_pairwise(FILE *f, struct wpa_ssid *ssid)
  {
  	char *value;
  
  	if (ssid->pairwise_cipher == DEFAULT_PAIRWISE)
  		return;
  
  	value = wpa_config_get(ssid, "pairwise");
  	if (value == NULL)
  		return;
  	if (value[0])
  		fprintf(f, "\tpairwise=%s\n", value);
  	os_free(value);
  }
  
  
  static void write_group(FILE *f, struct wpa_ssid *ssid)
  {
  	char *value;
  
  	if (ssid->group_cipher == DEFAULT_GROUP)
  		return;
  
  	value = wpa_config_get(ssid, "group");
  	if (value == NULL)
  		return;
  	if (value[0])
  		fprintf(f, "\tgroup=%s\n", value);
  	os_free(value);
  }
  
  
  static void write_auth_alg(FILE *f, struct wpa_ssid *ssid)
  {
  	char *value;
  
  	if (ssid->auth_alg == 0)
  		return;
  
  	value = wpa_config_get(ssid, "auth_alg");
  	if (value == NULL)
  		return;
  	if (value[0])
  		fprintf(f, "\tauth_alg=%s\n", value);
  	os_free(value);
  }
  
  
  #ifdef IEEE8021X_EAPOL
  static void write_eap(FILE *f, struct wpa_ssid *ssid)
  {
  	char *value;
  
  	value = wpa_config_get(ssid, "eap");
  	if (value == NULL)
  		return;
  
  	if (value[0])
  		fprintf(f, "\teap=%s\n", value);
  	os_free(value);
  }
  #endif /* IEEE8021X_EAPOL */
  
  
  static void write_wep_key(FILE *f, int idx, struct wpa_ssid *ssid)
  {
  	char field[20], *value;
  	int res;
  
  	res = os_snprintf(field, sizeof(field), "wep_key%d", idx);
  	if (res < 0 || (size_t) res >= sizeof(field))
  		return;
  	value = wpa_config_get(ssid, field);
  	if (value) {
  		fprintf(f, "\t%s=%s\n", field, value);
  		os_free(value);
  	}
  }
  
  
  static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
  {
  	int i;
  
  #define STR(t) write_str(f, #t, ssid)
  #define INT(t) write_int(f, #t, ssid->t, 0)
  #define INTe(t) write_int(f, #t, ssid->eap.t, 0)
  #define INT_DEF(t, def) write_int(f, #t, ssid->t, def)
  #define INT_DEFe(t, def) write_int(f, #t, ssid->eap.t, def)
  
  	STR(ssid);
  	INT(scan_ssid);
  	write_bssid(f, ssid);
  	write_psk(f, ssid);
  	write_proto(f, ssid);
  	write_key_mgmt(f, ssid);
  	write_pairwise(f, ssid);
  	write_group(f, ssid);
  	write_auth_alg(f, ssid);
  #ifdef IEEE8021X_EAPOL
  	write_eap(f, ssid);
  	STR(identity);
  	STR(anonymous_identity);
  	STR(password);
  	STR(ca_cert);
  	STR(ca_path);
  	STR(client_cert);
  	STR(private_key);
  	STR(private_key_passwd);
  	STR(dh_file);
  	STR(subject_match);
  	STR(altsubject_match);
  	STR(ca_cert2);
  	STR(ca_path2);
  	STR(client_cert2);
  	STR(private_key2);
  	STR(private_key2_passwd);
  	STR(dh_file2);
  	STR(subject_match2);
  	STR(altsubject_match2);
  	STR(phase1);
  	STR(phase2);
  	STR(pcsc);
  	STR(pin);
  	STR(engine_id);
  	STR(key_id);
  	STR(cert_id);
  	STR(ca_cert_id);
  	STR(key2_id);
  	STR(pin2);
  	STR(engine2_id);
  	STR(cert2_id);
  	STR(ca_cert2_id);
  	INTe(engine);
  	INTe(engine2);
  	INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS);
  #endif /* IEEE8021X_EAPOL */
  	for (i = 0; i < 4; i++)
  		write_wep_key(f, i, ssid);
  	INT(wep_tx_keyidx);
  	INT(priority);
  #ifdef IEEE8021X_EAPOL
  	INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND);
  	STR(pac_file);
  	INT_DEFe(fragment_size, DEFAULT_FRAGMENT_SIZE);
  #endif /* IEEE8021X_EAPOL */
  	INT(mode);
  	INT(proactive_key_caching);
  	INT(disabled);
  	INT(peerkey);
  
  	STR(id_str);
  
  #undef STR
  #undef INT
  #undef INT_DEF
  }
  
  
  #if 0
  #ifndef CONFIG_NO_CONFIG_BLOBS
  static int wpa_config_write_blob(FILE *f, struct wpa_config_blob *blob)
  {
  	unsigned char *encoded;
  
  	encoded = base64_encode(blob->data, blob->len, NULL);
  	if (encoded == NULL)
  		return -1;
  
  	fprintf(f, "\nblob-base64-%s={\n%s}\n", blob->name, encoded);
  	os_free(encoded);
  	return 0;
  }
  #endif /* CONFIG_NO_CONFIG_BLOBS */
  #endif
  
  static void wpa_config_write_global(FILE *f, struct wpa_config *config)
  {
  #ifdef CONFIG_CTRL_IFACE
  	if (config->ctrl_interface)
  		fprintf(f, "ctrl_interface=%s\n", config->ctrl_interface);
  	if (config->ctrl_interface_group)
  		fprintf(f, "ctrl_interface_group=%s\n",
  			config->ctrl_interface_group);
  #endif /* CONFIG_CTRL_IFACE */
  	if (config->eapol_version != DEFAULT_EAPOL_VERSION)
  		fprintf(f, "eapol_version=%d\n", config->eapol_version);
  	if (config->ap_scan != DEFAULT_AP_SCAN)
  		fprintf(f, "ap_scan=%d\n", config->ap_scan);
  	if (config->fast_reauth != DEFAULT_FAST_REAUTH)
  		fprintf(f, "fast_reauth=%d\n", config->fast_reauth);
      /*
  	if (config->opensc_engine_path)
  		fprintf(f, "opensc_engine_path=%s\n",
  			config->opensc_engine_path);
        */
  	if (config->pkcs11_engine_path)
  		fprintf(f, "pkcs11_engine_path=%s\n",
  			config->pkcs11_engine_path);
  	if (config->pkcs11_module_path)
  		fprintf(f, "pkcs11_module_path=%s\n",
  			config->pkcs11_module_path);
  	if (config->driver_param)
  		fprintf(f, "driver_param=%s\n", config->driver_param);
  	if (config->dot11RSNAConfigPMKLifetime)
  		fprintf(f, "dot11RSNAConfigPMKLifetime=%d\n",
  			config->dot11RSNAConfigPMKLifetime);
  	if (config->dot11RSNAConfigPMKReauthThreshold)
  		fprintf(f, "dot11RSNAConfigPMKReauthThreshold=%d\n",
  			config->dot11RSNAConfigPMKReauthThreshold);
  	if (config->dot11RSNAConfigSATimeout)
  		fprintf(f, "dot11RSNAConfigSATimeout=%d\n",
  			config->dot11RSNAConfigSATimeout);
  	if (config->update_config)
  		fprintf(f, "update_config=%d\n", config->update_config);
  
  #if 0
  #ifdef CONFIG_WPS
  	if (!is_nil_uuid(config->uuid)) {
  		char buf[40];
  		uuid_bin2str(config->uuid, buf, sizeof(buf));
  		fprintf(f, "uuid=%s\n", buf);
  	}
  	if (config->device_name)
  		fprintf(f, "device_name=%s\n", config->device_name);
  	if (config->manufacturer)
  		fprintf(f, "manufacturer=%s\n", config->manufacturer);
  	if (config->model_name)
  		fprintf(f, "model_name=%s\n", config->model_name);
  	if (config->model_number)
  		fprintf(f, "model_number=%s\n", config->model_number);
  	if (config->serial_number)
  		fprintf(f, "serial_number=%s\n", config->serial_number);
  	if (config->device_type)
  		fprintf(f, "device_type=%s\n", config->device_type);
  	if (WPA_GET_BE32(config->os_version))
  		fprintf(f, "os_version=%08x\n",
  			WPA_GET_BE32(config->os_version));
  	if (config->config_methods)
  		fprintf(f, "config_methods=%s\n", config->config_methods);
  	if (config->wps_cred_processing)
  		fprintf(f, "wps_cred_processing=%d\n",
  			config->wps_cred_processing);
  #endif /* CONFIG_WPS */
  #endif //#if 0
  
  	if (config->country[0] && config->country[1]) {
  		fprintf(f, "country=%c%c\n",
  			config->country[0], config->country[1]);
  	}
  	if (config->bss_max_count != DEFAULT_BSS_MAX_COUNT)
  		fprintf(f, "bss_max_count=%u\n", config->bss_max_count);
  	if (config->filter_ssids)
  		fprintf(f, "filter_ssids=%d\n", config->filter_ssids);
  }
  
  #endif /* CONFIG_NO_CONFIG_WRITE */
  
  
  int wpa_config_write(const char *name, struct wpa_config *config)
  {
  #ifndef CONFIG_NO_CONFIG_WRITE
  	FILE *f;
  	struct wpa_ssid *ssid;
  
  #if 0
  #ifndef CONFIG_NO_CONFIG_BLOBS
  	struct wpa_config_blob *blob;
  #endif /* CONFIG_NO_CONFIG_BLOBS */
  #endif
  
  	int ret = 0;
  
  	wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name);
  
  	f = fopen(name, "w");
  	if (f == NULL) {
  		wpa_printf(MSG_DEBUG, "Failed to open '%s' for writing", name);
  		return -1;
  	}
  
  	wpa_config_write_global(f, config);
  
  	for (ssid = config->ssid; ssid; ssid = ssid->next) {
  		if (ssid->key_mgmt == WPA_KEY_MGMT_WPS)
  			continue; /* do not save temporary WPS networks */
  		fprintf(f, "\nnetwork={\n");
  		wpa_config_write_network(f, ssid);
  		fprintf(f, "}\n");
  	}
  
  #if 0
  #ifndef CONFIG_NO_CONFIG_BLOBS
  	for (blob = config->blobs; blob; blob = blob->next) {
  		ret = wpa_config_write_blob(f, blob);
  		if (ret)
  			break;
  	}
  #endif /* CONFIG_NO_CONFIG_BLOBS */
  #endif
  
  	fclose(f);
  
  	wpa_printf(MSG_DEBUG, "Configuration file '%s' written %ssuccessfully",
  		   name, ret ? "un" : "");
  	return ret;
  #else /* CONFIG_NO_CONFIG_WRITE */
  	return -1;
  #endif /* CONFIG_NO_CONFIG_WRITE */
  }
  