wpa_supplicant: Initial Revision 0.8.X
Based on:
commit 0725cc7b7efc434910e89865c42eda7ce61bbf08
Author: Jouni Malinen <j@w1.fi>
Date: Thu Apr 21 20:41:01 2011 +0300
Enable CONFIG_DRIVER_NL80211=y in the default configuration
nl80211 should be preferred over WEXT with any recent Linux
kernel version.
Change-Id: I26aec5afbbd4f4a1f5fd900912545b6f5050de64
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/wpa_supplicant/config_file.c b/wpa_supplicant/config_file.c
new file mode 100644
index 0000000..2d5fdd6
--- /dev/null
+++ b/wpa_supplicant/config_file.c
@@ -0,0 +1,755 @@
+/*
+ * 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"
+
+
+/**
+ * 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
+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;
+}
+
+
+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 /* CONFIG_NO_CONFIG_BLOBS */
+
+
+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;
+ }
+
+ 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;
+ }
+#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 */
+ } else if (wpa_config_process_global(config, pos, line) < 0) {
+ wpa_printf(MSG_ERROR, "Line %d: Invalid configuration "
+ "line '%s'.", line, pos);
+ errors++;
+ continue;
+ }
+ }
+
+ fclose(f);
+
+ config->ssid = head;
+ wpa_config_debug_dump_networks(config);
+
+#ifndef WPA_IGNORE_CONFIG_ERRORS
+ if (errors) {
+ wpa_config_free(config);
+ config = NULL;
+ head = NULL;
+ }
+#endif /* WPA_IGNORE_CONFIG_ERRORS */
+
+ 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);
+#ifdef CONFIG_IEEE80211W
+ INT(ieee80211w);
+#endif /* CONFIG_IEEE80211W */
+ STR(id_str);
+
+#undef STR
+#undef INT
+#undef INT_DEF
+}
+
+
+#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 */
+
+
+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);
+#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);
+ {
+ char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
+ buf = wps_dev_type_bin2str(config->device_type,
+ _buf, sizeof(_buf));
+ fprintf(f, "device_type=%s\n", buf);
+ }
+ 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 */
+#ifdef CONFIG_P2P
+ if (config->p2p_listen_reg_class)
+ fprintf(f, "p2p_listen_reg_class=%u\n",
+ config->p2p_listen_reg_class);
+ if (config->p2p_listen_channel)
+ fprintf(f, "p2p_listen_channel=%u\n",
+ config->p2p_listen_channel);
+ if (config->p2p_oper_reg_class)
+ fprintf(f, "p2p_oper_reg_class=%u\n",
+ config->p2p_oper_reg_class);
+ if (config->p2p_oper_channel)
+ fprintf(f, "p2p_oper_channel=%u\n", config->p2p_oper_channel);
+ if (config->p2p_go_intent != DEFAULT_P2P_GO_INTENT)
+ fprintf(f, "p2p_go_intent=%u\n", config->p2p_go_intent);
+ if (config->p2p_ssid_postfix)
+ fprintf(f, "p2p_ssid_postfix=%s\n", config->p2p_ssid_postfix);
+ if (config->persistent_reconnect)
+ fprintf(f, "persistent_reconnect=%u\n",
+ config->persistent_reconnect);
+ if (config->p2p_intra_bss != DEFAULT_P2P_INTRA_BSS)
+ fprintf(f, "p2p_intra_bss=%u\n", config->p2p_intra_bss);
+ if (config->p2p_group_idle)
+ fprintf(f, "p2p_group_idle=%u\n", config->p2p_group_idle);
+#endif /* CONFIG_P2P */
+ 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->bss_expiration_age != DEFAULT_BSS_EXPIRATION_AGE)
+ fprintf(f, "bss_expiration_age=%u\n",
+ config->bss_expiration_age);
+ if (config->bss_expiration_scan_count !=
+ DEFAULT_BSS_EXPIRATION_SCAN_COUNT)
+ fprintf(f, "bss_expiration_scan_count=%u\n",
+ config->bss_expiration_scan_count);
+ if (config->filter_ssids)
+ fprintf(f, "filter_ssids=%d\n", config->filter_ssids);
+ if (config->max_num_sta != DEFAULT_MAX_NUM_STA)
+ fprintf(f, "max_num_sta=%u\n", config->max_num_sta);
+ if (config->disassoc_low_ack)
+ fprintf(f, "disassoc_low_ack=%u\n", config->disassoc_low_ack);
+}
+
+#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;
+#ifndef CONFIG_NO_CONFIG_BLOBS
+ struct wpa_config_blob *blob;
+#endif /* CONFIG_NO_CONFIG_BLOBS */
+ 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 || ssid->temporary)
+ continue; /* do not save temporary networks */
+ fprintf(f, "\nnetwork={\n");
+ wpa_config_write_network(f, ssid);
+ fprintf(f, "}\n");
+ }
+
+#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 */
+
+ 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 */
+}