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config_winreg.c
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config_winreg.c
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/*
* WPA Supplicant / Configuration backend: Windows registry
* Copyright (c) 2003-2006, Jouni Malinen <[email protected]>
*
* 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 Windows registry.. All the
* configuration information is stored in the registry and the format for
* network configuration fields is same as described in the sample
* configuration file, wpa_supplicant.conf.
*
* Configuration data is in HKEY_LOCAL_MACHINE\SOFTWARE\wpa_supplicant\configs
* key. Each configuration profile has its own key under this. In terms of text
* files, each profile would map to a separate text file with possibly multiple
* networks. Under each profile, there is a networks key that lists all
* networks as a subkey. Each network has set of values in the same way as
* network block in the configuration file. In addition, blobs subkey has
* possible blobs as values.
*
* HKEY_LOCAL_MACHINE\SOFTWARE\wpa_supplicant\configs\test\networks\0000
* ssid="example"
* key_mgmt=WPA-PSK
*/
#include "includes.h"
#include "common.h"
#include "config.h"
#ifndef WPA_KEY_ROOT
#define WPA_KEY_ROOT HKEY_LOCAL_MACHINE
#endif
#ifndef WPA_KEY_PREFIX
#define WPA_KEY_PREFIX TEXT("SOFTWARE\\wpa_supplicant")
#endif
#ifdef UNICODE
#define TSTR "%S"
#else /* UNICODE */
#define TSTR "%s"
#endif /* UNICODE */
static int wpa_config_read_blobs(struct wpa_config *config, HKEY hk)
{
struct wpa_config_blob *blob;
int errors = 0;
HKEY bhk;
LONG ret;
DWORD i;
ret = RegOpenKeyEx(hk, TEXT("blobs"), 0, KEY_QUERY_VALUE, &bhk);
if (ret != ERROR_SUCCESS) {
wpa_printf(MSG_DEBUG, "Could not open wpa_supplicant config "
"blobs key");
return 0; /* assume no blobs */
}
for (i = 0; ; i++) {
#define TNAMELEN 255
TCHAR name[TNAMELEN];
char data[4096];
DWORD namelen, datalen, type;
namelen = TNAMELEN;
datalen = sizeof(data);
ret = RegEnumValue(bhk, i, name, &namelen, NULL, &type,
(LPBYTE) data, &datalen);
if (ret == ERROR_NO_MORE_ITEMS)
break;
if (ret != ERROR_SUCCESS) {
wpa_printf(MSG_DEBUG, "RegEnumValue failed: 0x%x",
(unsigned int) ret);
break;
}
if (namelen >= TNAMELEN)
namelen = TNAMELEN - 1;
name[namelen] = TEXT('\0');
wpa_unicode2ascii_inplace(name);
if (datalen >= sizeof(data))
datalen = sizeof(data) - 1;
wpa_printf(MSG_MSGDUMP, "blob %d: field='%s' len %d",
(int) i, name, (int) datalen);
blob = os_zalloc(sizeof(*blob));
if (blob == NULL) {
errors++;
break;
}
blob->name = os_strdup((char *) name);
blob->data = os_malloc(datalen);
if (blob->name == NULL || blob->data == NULL) {
wpa_config_free_blob(blob);
errors++;
break;
}
os_memcpy(blob->data, data, datalen);
blob->len = datalen;
wpa_config_set_blob(config, blob);
}
RegCloseKey(bhk);
return errors ? -1 : 0;
}
static int wpa_config_read_reg_dword(HKEY hk, const TCHAR *name, int *_val)
{
DWORD val, buflen;
LONG ret;
buflen = sizeof(val);
ret = RegQueryValueEx(hk, name, NULL, NULL, (LPBYTE) &val, &buflen);
if (ret == ERROR_SUCCESS && buflen == sizeof(val)) {
wpa_printf(MSG_DEBUG, TSTR "=%d", name, (int) val);
*_val = val;
return 0;
}
return -1;
}
static char * wpa_config_read_reg_string(HKEY hk, const TCHAR *name)
{
DWORD buflen;
LONG ret;
TCHAR *val;
buflen = 0;
ret = RegQueryValueEx(hk, name, NULL, NULL, NULL, &buflen);
if (ret != ERROR_SUCCESS)
return NULL;
val = os_malloc(buflen);
if (val == NULL)
return NULL;
ret = RegQueryValueEx(hk, name, NULL, NULL, (LPBYTE) val, &buflen);
if (ret != ERROR_SUCCESS) {
os_free(val);
return NULL;
}
wpa_unicode2ascii_inplace(val);
wpa_printf(MSG_DEBUG, TSTR "=%s", name, (char *) val);
return (char *) val;
}
static int wpa_config_read_global(struct wpa_config *config, HKEY hk)
{
int errors = 0;
wpa_config_read_reg_dword(hk, TEXT("ap_scan"), &config->ap_scan);
wpa_config_read_reg_dword(hk, TEXT("fast_reauth"),
&config->fast_reauth);
wpa_config_read_reg_dword(hk, TEXT("dot11RSNAConfigPMKLifetime"),
&config->dot11RSNAConfigPMKLifetime);
wpa_config_read_reg_dword(hk,
TEXT("dot11RSNAConfigPMKReauthThreshold"),
&config->dot11RSNAConfigPMKReauthThreshold);
wpa_config_read_reg_dword(hk, TEXT("dot11RSNAConfigSATimeout"),
&config->dot11RSNAConfigSATimeout);
wpa_config_read_reg_dword(hk, TEXT("update_config"),
&config->update_config);
if (wpa_config_read_reg_dword(hk, TEXT("eapol_version"),
&config->eapol_version) == 0) {
if (config->eapol_version < 1 ||
config->eapol_version > 2) {
wpa_printf(MSG_ERROR, "Invalid EAPOL version (%d)",
config->eapol_version);
errors++;
}
}
config->ctrl_interface = wpa_config_read_reg_string(
hk, TEXT("ctrl_interface"));
return errors ? -1 : 0;
}
static struct wpa_ssid * wpa_config_read_network(HKEY hk, const TCHAR *netw,
int id)
{
HKEY nhk;
LONG ret;
DWORD i;
struct wpa_ssid *ssid;
int errors = 0;
ret = RegOpenKeyEx(hk, netw, 0, KEY_QUERY_VALUE, &nhk);
if (ret != ERROR_SUCCESS) {
wpa_printf(MSG_DEBUG, "Could not open wpa_supplicant config "
"network '" TSTR "'", netw);
return NULL;
}
wpa_printf(MSG_MSGDUMP, "Start of a new network '" TSTR "'", netw);
ssid = os_zalloc(sizeof(*ssid));
if (ssid == NULL) {
RegCloseKey(nhk);
return NULL;
}
ssid->id = id;
wpa_config_set_network_defaults(ssid);
for (i = 0; ; i++) {
TCHAR name[255], data[1024];
DWORD namelen, datalen, type;
namelen = 255;
datalen = sizeof(data);
ret = RegEnumValue(nhk, i, name, &namelen, NULL, &type,
(LPBYTE) data, &datalen);
if (ret == ERROR_NO_MORE_ITEMS)
break;
if (ret != ERROR_SUCCESS) {
wpa_printf(MSG_ERROR, "RegEnumValue failed: 0x%x",
(unsigned int) ret);
break;
}
if (namelen >= 255)
namelen = 255 - 1;
name[namelen] = TEXT('\0');
if (datalen >= 1024)
datalen = 1024 - 1;
data[datalen] = TEXT('\0');
wpa_unicode2ascii_inplace(name);
wpa_unicode2ascii_inplace(data);
if (wpa_config_set(ssid, (char *) name, (char *) data, 0) < 0)
errors++;
}
RegCloseKey(nhk);
if (ssid->passphrase) {
if (ssid->psk_set) {
wpa_printf(MSG_ERROR, "Both PSK and passphrase "
"configured for network '" TSTR "'.", netw);
errors++;
}
wpa_config_update_psk(ssid);
}
if ((ssid->key_mgmt & WPA_KEY_MGMT_PSK) && !ssid->psk_set) {
wpa_printf(MSG_ERROR, "WPA-PSK accepted for key management, "
"but no PSK configured for network '" TSTR "'.",
netw);
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, "Removed CCMP from group cipher "
"list since it was not allowed for pairwise "
"cipher for network '" TSTR "'.", netw);
ssid->group_cipher &= ~WPA_CIPHER_CCMP;
}
if (errors) {
wpa_config_free_ssid(ssid);
ssid = NULL;
}
return ssid;
}
static int wpa_config_read_networks(struct wpa_config *config, HKEY hk)
{
HKEY nhk;
struct wpa_ssid *ssid, *tail = NULL, *head = NULL;
int errors = 0;
LONG ret;
DWORD i;
ret = RegOpenKeyEx(hk, TEXT("networks"), 0, KEY_ENUMERATE_SUB_KEYS,
&nhk);
if (ret != ERROR_SUCCESS) {
wpa_printf(MSG_ERROR, "Could not open wpa_supplicant networks "
"registry key");
return -1;
}
for (i = 0; ; i++) {
TCHAR name[255];
DWORD namelen;
namelen = 255;
ret = RegEnumKeyEx(nhk, i, name, &namelen, NULL, NULL, NULL,
NULL);
if (ret == ERROR_NO_MORE_ITEMS)
break;
if (ret != ERROR_SUCCESS) {
wpa_printf(MSG_DEBUG, "RegEnumKeyEx failed: 0x%x",
(unsigned int) ret);
break;
}
if (namelen >= 255)
namelen = 255 - 1;
name[namelen] = '\0';
ssid = wpa_config_read_network(nhk, name, i);
if (ssid == NULL) {
wpa_printf(MSG_ERROR, "Failed to parse network "
"profile '%s'.", name);
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, "Failed to add network profile "
"'%s' to priority list.", name);
errors++;
continue;
}
}
RegCloseKey(nhk);
config->ssid = head;
return errors ? -1 : 0;
}
struct wpa_config * wpa_config_read(const char *name)
{
TCHAR buf[256];
int errors = 0;
struct wpa_config *config;
HKEY hk;
LONG ret;
config = wpa_config_alloc_empty(NULL, NULL);
if (config == NULL)
return NULL;
wpa_printf(MSG_DEBUG, "Reading configuration profile '%s'", name);
#ifdef UNICODE
_snwprintf(buf, 256, WPA_KEY_PREFIX TEXT("\\configs\\%S"), name);
#else /* UNICODE */
os_snprintf(buf, 256, WPA_KEY_PREFIX TEXT("\\configs\\%s"), name);
#endif /* UNICODE */
ret = RegOpenKeyEx(WPA_KEY_ROOT, buf, 0, KEY_QUERY_VALUE, &hk);
if (ret != ERROR_SUCCESS) {
wpa_printf(MSG_ERROR, "Could not open wpa_supplicant "
"configuration registry HKLM\\" TSTR, buf);
os_free(config);
return NULL;
}
if (wpa_config_read_global(config, hk))
errors++;
if (wpa_config_read_networks(config, hk))
errors++;
if (wpa_config_read_blobs(config, hk))
errors++;
wpa_config_debug_dump_networks(config);
RegCloseKey(hk);
if (errors) {
wpa_config_free(config);
config = NULL;
}
return config;
}
static int wpa_config_write_reg_dword(HKEY hk, const TCHAR *name, int val,
int def)
{
LONG ret;
DWORD _val = val;
if (val == def) {
RegDeleteValue(hk, name);
return 0;
}
ret = RegSetValueEx(hk, name, 0, REG_DWORD, (LPBYTE) &_val,
sizeof(_val));
if (ret != ERROR_SUCCESS) {
wpa_printf(MSG_ERROR, "WINREG: Failed to set %s=%d: error %d",
name, val, (int) GetLastError());
return -1;
}
return 0;
}
static int wpa_config_write_reg_string(HKEY hk, const char *name,
const char *val)
{
LONG ret;
TCHAR *_name, *_val;
_name = wpa_strdup_tchar(name);
if (_name == NULL)
return -1;
if (val == NULL) {
RegDeleteValue(hk, _name);
os_free(_name);
return 0;
}
_val = wpa_strdup_tchar(val);
if (_val == NULL) {
os_free(_name);
return -1;
}
ret = RegSetValueEx(hk, _name, 0, REG_SZ, (BYTE *) _val,
(os_strlen(val) + 1) * sizeof(TCHAR));
if (ret != ERROR_SUCCESS) {
wpa_printf(MSG_ERROR, "WINREG: Failed to set %s='%s': "
"error %d", name, val, (int) GetLastError());
os_free(_name);
os_free(_val);
return -1;
}
os_free(_name);
os_free(_val);
return 0;
}
static int wpa_config_write_global(struct wpa_config *config, HKEY hk)
{
#ifdef CONFIG_CTRL_IFACE
wpa_config_write_reg_string(hk, "ctrl_interface",
config->ctrl_interface);
#endif /* CONFIG_CTRL_IFACE */
wpa_config_write_reg_dword(hk, TEXT("eapol_version"),
config->eapol_version,
DEFAULT_EAPOL_VERSION);
wpa_config_write_reg_dword(hk, TEXT("ap_scan"), config->ap_scan,
DEFAULT_AP_SCAN);
wpa_config_write_reg_dword(hk, TEXT("fast_reauth"),
config->fast_reauth, DEFAULT_FAST_REAUTH);
wpa_config_write_reg_dword(hk, TEXT("dot11RSNAConfigPMKLifetime"),
config->dot11RSNAConfigPMKLifetime, 0);
wpa_config_write_reg_dword(hk,
TEXT("dot11RSNAConfigPMKReauthThreshold"),
config->dot11RSNAConfigPMKReauthThreshold,
0);
wpa_config_write_reg_dword(hk, TEXT("dot11RSNAConfigSATimeout"),
config->dot11RSNAConfigSATimeout, 0);
wpa_config_write_reg_dword(hk, TEXT("update_config"),
config->update_config,
0);
return 0;
}
static int wpa_config_delete_subkeys(HKEY hk, const TCHAR *key)
{
HKEY nhk;
int i, errors = 0;
LONG ret;
ret = RegOpenKeyEx(hk, key, 0, KEY_ENUMERATE_SUB_KEYS | DELETE, &nhk);
if (ret != ERROR_SUCCESS) {
wpa_printf(MSG_DEBUG, "WINREG: Could not open key '" TSTR
"' for subkey deletion: error 0x%x (%d)", key,
(unsigned int) ret, (int) GetLastError());
return 0;
}
for (i = 0; ; i++) {
TCHAR name[255];
DWORD namelen;
namelen = 255;
ret = RegEnumKeyEx(nhk, i, name, &namelen, NULL, NULL, NULL,
NULL);
if (ret == ERROR_NO_MORE_ITEMS)
break;
if (ret != ERROR_SUCCESS) {
wpa_printf(MSG_DEBUG, "RegEnumKeyEx failed: 0x%x (%d)",
(unsigned int) ret, (int) GetLastError());
break;
}
if (namelen >= 255)
namelen = 255 - 1;
name[namelen] = TEXT('\0');
ret = RegDeleteKey(nhk, name);
if (ret != ERROR_SUCCESS) {
wpa_printf(MSG_DEBUG, "RegDeleteKey failed: 0x%x (%d)",
(unsigned int) ret, (int) GetLastError());
errors++;
}
}
RegCloseKey(nhk);
return errors ? -1 : 0;
}
static void write_str(HKEY hk, const char *field, struct wpa_ssid *ssid)
{
char *value = wpa_config_get(ssid, field);
if (value == NULL)
return;
wpa_config_write_reg_string(hk, field, value);
os_free(value);
}
static void write_int(HKEY hk, const char *field, int value, int def)
{
char val[20];
if (value == def)
return;
os_snprintf(val, sizeof(val), "%d", value);
wpa_config_write_reg_string(hk, field, val);
}
static void write_bssid(HKEY hk, struct wpa_ssid *ssid)
{
char *value = wpa_config_get(ssid, "bssid");
if (value == NULL)
return;
wpa_config_write_reg_string(hk, "bssid", value);
os_free(value);
}
static void write_psk(HKEY hk, struct wpa_ssid *ssid)
{
char *value = wpa_config_get(ssid, "psk");
if (value == NULL)
return;
wpa_config_write_reg_string(hk, "psk", value);
os_free(value);
}
static void write_proto(HKEY hk, 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])
wpa_config_write_reg_string(hk, "proto", value);
os_free(value);
}
static void write_key_mgmt(HKEY hk, 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])
wpa_config_write_reg_string(hk, "key_mgmt", value);
os_free(value);
}
static void write_pairwise(HKEY hk, 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])
wpa_config_write_reg_string(hk, "pairwise", value);
os_free(value);
}
static void write_group(HKEY hk, 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])
wpa_config_write_reg_string(hk, "group", value);
os_free(value);
}
static void write_auth_alg(HKEY hk, 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])
wpa_config_write_reg_string(hk, "auth_alg", value);
os_free(value);
}
#ifdef IEEE8021X_EAPOL
static void write_eap(HKEY hk, struct wpa_ssid *ssid)
{
char *value;
value = wpa_config_get(ssid, "eap");
if (value == NULL)
return;
if (value[0])
wpa_config_write_reg_string(hk, "eap", value);
os_free(value);
}
#endif /* IEEE8021X_EAPOL */
static void write_wep_key(HKEY hk, int idx, struct wpa_ssid *ssid)
{
char field[20], *value;
os_snprintf(field, sizeof(field), "wep_key%d", idx);
value = wpa_config_get(ssid, field);
if (value) {
wpa_config_write_reg_string(hk, field, value);
os_free(value);
}
}
static int wpa_config_write_network(HKEY hk, struct wpa_ssid *ssid, int id)
{
int i, errors = 0;
HKEY nhk, netw;
LONG ret;
TCHAR name[5];
ret = RegOpenKeyEx(hk, TEXT("networks"), 0, KEY_CREATE_SUB_KEY, &nhk);
if (ret != ERROR_SUCCESS) {
wpa_printf(MSG_DEBUG, "WINREG: Could not open networks key "
"for subkey addition: error 0x%x (%d)",
(unsigned int) ret, (int) GetLastError());
return 0;
}
#ifdef UNICODE
wsprintf(name, L"%04d", id);
#else /* UNICODE */
os_snprintf(name, sizeof(name), "%04d", id);
#endif /* UNICODE */
ret = RegCreateKeyEx(nhk, name, 0, NULL, 0, KEY_WRITE, NULL, &netw,
NULL);
RegCloseKey(nhk);
if (ret != ERROR_SUCCESS) {
wpa_printf(MSG_DEBUG, "WINREG: Could not add network key '%s':"
" error 0x%x (%d)",
name, (unsigned int) ret, (int) GetLastError());
return -1;
}
#define STR(t) write_str(netw, #t, ssid)
#define INT(t) write_int(netw, #t, ssid->t, 0)
#define INT_DEF(t, def) write_int(netw, #t, ssid->t, def)
STR(ssid);
INT(scan_ssid);
write_bssid(netw, ssid);
write_psk(netw, ssid);
write_proto(netw, ssid);
write_key_mgmt(netw, ssid);
write_pairwise(netw, ssid);
write_group(netw, ssid);
write_auth_alg(netw, ssid);
#ifdef IEEE8021X_EAPOL
write_eap(netw, ssid);
STR(identity);
STR(anonymous_identity);
STR(eappsk);
STR(nai);
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);
INT(engine);
INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS);
#endif /* IEEE8021X_EAPOL */
for (i = 0; i < 4; i++)
write_wep_key(netw, i, ssid);
INT(wep_tx_keyidx);
INT(priority);
#ifdef IEEE8021X_EAPOL
INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND);
STR(pac_file);
INT_DEF(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
RegCloseKey(netw);
return errors ? -1 : 0;
}
static int wpa_config_write_blob(HKEY hk, struct wpa_config_blob *blob)
{
HKEY bhk;
LONG ret;
TCHAR *name;
ret = RegCreateKeyEx(hk, TEXT("blobs"), 0, NULL, 0, KEY_WRITE, NULL,
&bhk, NULL);
if (ret != ERROR_SUCCESS) {
wpa_printf(MSG_DEBUG, "WINREG: Could not add blobs key: "
"error 0x%x (%d)",
(unsigned int) ret, (int) GetLastError());
return -1;
}
name = wpa_strdup_tchar(blob->name);
ret = RegSetValueEx(bhk, name, 0, REG_BINARY, blob->data,
blob->len);
if (ret != ERROR_SUCCESS) {
wpa_printf(MSG_ERROR, "WINREG: Failed to set blob %s': "
"error 0x%x (%d)", blob->name, (unsigned int) ret,
(int) GetLastError());
RegCloseKey(bhk);
os_free(name);
return -1;
}
os_free(name);
RegCloseKey(bhk);
return 0;
}
int wpa_config_write(const char *name, struct wpa_config *config)
{
TCHAR buf[256];
HKEY hk;
LONG ret;
int errors = 0;
struct wpa_ssid *ssid;
struct wpa_config_blob *blob;
int id;
wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name);
#ifdef UNICODE
_snwprintf(buf, 256, WPA_KEY_PREFIX TEXT("\\configs\\%S"), name);
#else /* UNICODE */
os_snprintf(buf, 256, WPA_KEY_PREFIX TEXT("\\configs\\%s"), name);
#endif /* UNICODE */
ret = RegOpenKeyEx(WPA_KEY_ROOT, buf, 0, KEY_SET_VALUE | DELETE, &hk);
if (ret != ERROR_SUCCESS) {
wpa_printf(MSG_ERROR, "Could not open wpa_supplicant "
"configuration registry %s: error %d", buf,
(int) GetLastError());
return -1;
}
if (wpa_config_write_global(config, hk)) {
wpa_printf(MSG_ERROR, "Failed to write global configuration "
"data");
errors++;
}
wpa_config_delete_subkeys(hk, TEXT("networks"));
for (ssid = config->ssid, id = 0; ssid; ssid = ssid->next, id++) {
if (wpa_config_write_network(hk, ssid, id))
errors++;
}
RegDeleteKey(hk, TEXT("blobs"));
for (blob = config->blobs; blob; blob = blob->next) {
if (wpa_config_write_blob(hk, blob))
errors++;
}
RegCloseKey(hk);
wpa_printf(MSG_DEBUG, "Configuration '%s' written %ssuccessfully",
name, errors ? "un" : "");
return errors ? -1 : 0;
}