wpa_supplicant_node: wpa_supplicant_node: config

00001 /*
00002  * WPA Supplicant / Configuration backend: Windows registry
00003  * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
00004  *
00005  * This program is free software; you can redistribute it and/or modify
00006  * it under the terms of the GNU General Public License version 2 as
00007  * published by the Free Software Foundation.
00008  *
00009  * Alternatively, this software may be distributed under the terms of BSD
00010  * license.
00011  *
00012  * See README and COPYING for more details.
00013  *
00014  * This file implements a configuration backend for Windows registry. All the
00015  * configuration information is stored in the registry and the format for
00016  * network configuration fields is same as described in the sample
00017  * configuration file, wpa_supplicant.conf.
00018  *
00019  * Configuration data is in
00020  * \a HKEY_LOCAL_MACHINE\\SOFTWARE\\%wpa_supplicant\\configs
00021  * key. Each configuration profile has its own key under this. In terms of text
00022  * files, each profile would map to a separate text file with possibly multiple
00023  * networks. Under each profile, there is a networks key that lists all
00024  * networks as a subkey. Each network has set of values in the same way as
00025  * network block in the configuration file. In addition, blobs subkey has
00026  * possible blobs as values.
00027  *
00028  * Example network configuration block:
00029  * \verbatim
00030 HKEY_LOCAL_MACHINE\SOFTWARE\wpa_supplicant\configs\test\networks\0000
00031    ssid="example"
00032    key_mgmt=WPA-PSK
00033 \endverbatim
00034  */
00035 
00036 #include "includes.h"
00037 
00038 #include "common.h"
00039 #include "uuid.h"
00040 #include "config.h"
00041 
00042 #ifndef WPA_KEY_ROOT
00043 #define WPA_KEY_ROOT HKEY_LOCAL_MACHINE
00044 #endif
00045 #ifndef WPA_KEY_PREFIX
00046 #define WPA_KEY_PREFIX TEXT("SOFTWARE\\wpa_supplicant")
00047 #endif
00048 
00049 #ifdef UNICODE
00050 #define TSTR "%S"
00051 #else /* UNICODE */
00052 #define TSTR "%s"
00053 #endif /* UNICODE */
00054 
00055 
00056 static int wpa_config_read_blobs(struct wpa_config *config, HKEY hk)
00057 {
00058         struct wpa_config_blob *blob;
00059         int errors = 0;
00060         HKEY bhk;
00061         LONG ret;
00062         DWORD i;
00063 
00064         ret = RegOpenKeyEx(hk, TEXT("blobs"), 0, KEY_QUERY_VALUE, &bhk);
00065         if (ret != ERROR_SUCCESS) {
00066                 wpa_printf(MSG_DEBUG, "Could not open wpa_supplicant config "
00067                            "blobs key");
00068                 return 0; /* assume no blobs */
00069         }
00070 
00071         for (i = 0; ; i++) {
00072 #define TNAMELEN 255
00073                 TCHAR name[TNAMELEN];
00074                 char data[4096];
00075                 DWORD namelen, datalen, type;
00076 
00077                 namelen = TNAMELEN;
00078                 datalen = sizeof(data);
00079                 ret = RegEnumValue(bhk, i, name, &namelen, NULL, &type,
00080                                    (LPBYTE) data, &datalen);
00081 
00082                 if (ret == ERROR_NO_MORE_ITEMS)
00083                         break;
00084 
00085                 if (ret != ERROR_SUCCESS) {
00086                         wpa_printf(MSG_DEBUG, "RegEnumValue failed: 0x%x",
00087                                    (unsigned int) ret);
00088                         break;
00089                 }
00090 
00091                 if (namelen >= TNAMELEN)
00092                         namelen = TNAMELEN - 1;
00093                 name[namelen] = TEXT('\0');
00094                 wpa_unicode2ascii_inplace(name);
00095 
00096                 if (datalen >= sizeof(data))
00097                         datalen = sizeof(data) - 1;
00098 
00099                 wpa_printf(MSG_MSGDUMP, "blob %d: field='%s' len %d",
00100                            (int) i, name, (int) datalen);
00101 
00102                 blob = os_zalloc(sizeof(*blob));
00103                 if (blob == NULL) {
00104                         errors++;
00105                         break;
00106                 }
00107                 blob->name = os_strdup((char *) name);
00108                 blob->data = os_malloc(datalen);
00109                 if (blob->name == NULL || blob->data == NULL) {
00110                         wpa_config_free_blob(blob);
00111                         errors++;
00112                         break;
00113                 }
00114                 os_memcpy(blob->data, data, datalen);
00115                 blob->len = datalen;
00116 
00117                 wpa_config_set_blob(config, blob);
00118         }
00119 
00120         RegCloseKey(bhk);
00121 
00122         return errors ? -1 : 0;
00123 }
00124 
00125 
00126 static int wpa_config_read_reg_dword(HKEY hk, const TCHAR *name, int *_val)
00127 {
00128         DWORD val, buflen;
00129         LONG ret;
00130 
00131         buflen = sizeof(val);
00132         ret = RegQueryValueEx(hk, name, NULL, NULL, (LPBYTE) &val, &buflen);
00133         if (ret == ERROR_SUCCESS && buflen == sizeof(val)) {
00134                 wpa_printf(MSG_DEBUG, TSTR "=%d", name, (int) val);
00135                 *_val = val;
00136                 return 0;
00137         }
00138 
00139         return -1;
00140 }
00141 
00142 
00143 static char * wpa_config_read_reg_string(HKEY hk, const TCHAR *name)
00144 {
00145         DWORD buflen;
00146         LONG ret;
00147         TCHAR *val;
00148 
00149         buflen = 0;
00150         ret = RegQueryValueEx(hk, name, NULL, NULL, NULL, &buflen);
00151         if (ret != ERROR_SUCCESS)
00152                 return NULL;
00153         val = os_malloc(buflen);
00154         if (val == NULL)
00155                 return NULL;
00156 
00157         ret = RegQueryValueEx(hk, name, NULL, NULL, (LPBYTE) val, &buflen);
00158         if (ret != ERROR_SUCCESS) {
00159                 os_free(val);
00160                 return NULL;
00161         }
00162 
00163         wpa_unicode2ascii_inplace(val);
00164         wpa_printf(MSG_DEBUG, TSTR "=%s", name, (char *) val);
00165         return (char *) val;
00166 }
00167 
00168 
00169 #ifdef CONFIG_WPS
00170 static int wpa_config_read_global_uuid(struct wpa_config *config, HKEY hk)
00171 {
00172         char *str;
00173         int ret = 0;
00174 
00175         str = wpa_config_read_reg_string(hk, TEXT("uuid"));
00176         if (str == NULL)
00177                 return 0;
00178 
00179         if (uuid_str2bin(str, config->uuid))
00180                 ret = -1;
00181 
00182         os_free(str);
00183 
00184         return ret;
00185 }
00186 
00187 
00188 static int wpa_config_read_global_os_version(struct wpa_config *config,
00189                                              HKEY hk)
00190 {
00191         char *str;
00192         int ret = 0;
00193 
00194         str = wpa_config_read_reg_string(hk, TEXT("os_version"));
00195         if (str == NULL)
00196                 return 0;
00197 
00198         if (hexstr2bin(str, config->os_version, 4))
00199                 ret = -1;
00200 
00201         os_free(str);
00202 
00203         return ret;
00204 }
00205 #endif /* CONFIG_WPS */
00206 
00207 
00208 static int wpa_config_read_global(struct wpa_config *config, HKEY hk)
00209 {
00210         int errors = 0;
00211 
00212         wpa_config_read_reg_dword(hk, TEXT("ap_scan"), &config->ap_scan);
00213         wpa_config_read_reg_dword(hk, TEXT("fast_reauth"),
00214                                   &config->fast_reauth);
00215         wpa_config_read_reg_dword(hk, TEXT("dot11RSNAConfigPMKLifetime"),
00216                                   (int *) &config->dot11RSNAConfigPMKLifetime);
00217         wpa_config_read_reg_dword(hk,
00218                                   TEXT("dot11RSNAConfigPMKReauthThreshold"),
00219                                   (int *)
00220                                   &config->dot11RSNAConfigPMKReauthThreshold);
00221         wpa_config_read_reg_dword(hk, TEXT("dot11RSNAConfigSATimeout"),
00222                                   (int *) &config->dot11RSNAConfigSATimeout);
00223         wpa_config_read_reg_dword(hk, TEXT("update_config"),
00224                                   &config->update_config);
00225 
00226         if (wpa_config_read_reg_dword(hk, TEXT("eapol_version"),
00227                                       &config->eapol_version) == 0) {
00228                 if (config->eapol_version < 1 ||
00229                     config->eapol_version > 2) {
00230                         wpa_printf(MSG_ERROR, "Invalid EAPOL version (%d)",
00231                                    config->eapol_version);
00232                         errors++;
00233                 }
00234         }
00235 
00236         config->ctrl_interface = wpa_config_read_reg_string(
00237                 hk, TEXT("ctrl_interface"));
00238 
00239 #ifdef CONFIG_WPS
00240         if (wpa_config_read_global_uuid(config, hk))
00241                 errors++;
00242         config->device_name = wpa_config_read_reg_string(
00243                 hk, TEXT("device_name"));
00244         config->manufacturer = wpa_config_read_reg_string(
00245                 hk, TEXT("manufacturer"));
00246         config->model_name = wpa_config_read_reg_string(
00247                 hk, TEXT("model_name"));
00248         config->serial_number = wpa_config_read_reg_string(
00249                 hk, TEXT("serial_number"));
00250         config->device_type = wpa_config_read_reg_string(
00251                 hk, TEXT("device_type"));
00252         config->config_methods = wpa_config_read_reg_string(
00253                 hk, TEXT("config_methods"));
00254         if (wpa_config_read_global_os_version(config, hk))
00255                 errors++;
00256         wpa_config_read_reg_dword(hk, TEXT("wps_cred_processing"),
00257                                   &config->wps_cred_processing);
00258 #endif /* CONFIG_WPS */
00259 
00260         wpa_config_read_reg_dword(hk, TEXT("bss_max_count"),
00261                                   &config->bss_max_count);
00262         wpa_config_read_reg_dword(hk, TEXT("filter_ssids"),
00263                                   &config->filter_ssids);
00264 
00265         return errors ? -1 : 0;
00266 }
00267 
00268 
00269 static struct wpa_ssid * wpa_config_read_network(HKEY hk, const TCHAR *netw,
00270                                                  int id)
00271 {
00272         HKEY nhk;
00273         LONG ret;
00274         DWORD i;
00275         struct wpa_ssid *ssid;
00276         int errors = 0;
00277 
00278         ret = RegOpenKeyEx(hk, netw, 0, KEY_QUERY_VALUE, &nhk);
00279         if (ret != ERROR_SUCCESS) {
00280                 wpa_printf(MSG_DEBUG, "Could not open wpa_supplicant config "
00281                            "network '" TSTR "'", netw);
00282                 return NULL;
00283         }
00284 
00285         wpa_printf(MSG_MSGDUMP, "Start of a new network '" TSTR "'", netw);
00286         ssid = os_zalloc(sizeof(*ssid));
00287         if (ssid == NULL) {
00288                 RegCloseKey(nhk);
00289                 return NULL;
00290         }
00291         ssid->id = id;
00292 
00293         wpa_config_set_network_defaults(ssid);
00294 
00295         for (i = 0; ; i++) {
00296                 TCHAR name[255], data[1024];
00297                 DWORD namelen, datalen, type;
00298 
00299                 namelen = 255;
00300                 datalen = sizeof(data);
00301                 ret = RegEnumValue(nhk, i, name, &namelen, NULL, &type,
00302                                    (LPBYTE) data, &datalen);
00303 
00304                 if (ret == ERROR_NO_MORE_ITEMS)
00305                         break;
00306 
00307                 if (ret != ERROR_SUCCESS) {
00308                         wpa_printf(MSG_ERROR, "RegEnumValue failed: 0x%x",
00309                                    (unsigned int) ret);
00310                         break;
00311                 }
00312 
00313                 if (namelen >= 255)
00314                         namelen = 255 - 1;
00315                 name[namelen] = TEXT('\0');
00316 
00317                 if (datalen >= 1024)
00318                         datalen = 1024 - 1;
00319                 data[datalen] = TEXT('\0');
00320 
00321                 wpa_unicode2ascii_inplace(name);
00322                 wpa_unicode2ascii_inplace(data);
00323                 if (wpa_config_set(ssid, (char *) name, (char *) data, 0) < 0)
00324                         errors++;
00325         }
00326 
00327         RegCloseKey(nhk);
00328 
00329         if (ssid->passphrase) {
00330                 if (ssid->psk_set) {
00331                         wpa_printf(MSG_ERROR, "Both PSK and passphrase "
00332                                    "configured for network '" TSTR "'.", netw);
00333                         errors++;
00334                 }
00335                 wpa_config_update_psk(ssid);
00336         }
00337 
00338         if ((ssid->key_mgmt & (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_FT_PSK |
00339                                WPA_KEY_MGMT_PSK_SHA256)) &&
00340             !ssid->psk_set) {
00341                 wpa_printf(MSG_ERROR, "WPA-PSK accepted for key management, "
00342                            "but no PSK configured for network '" TSTR "'.",
00343                            netw);
00344                 errors++;
00345         }
00346 
00347         if ((ssid->group_cipher & WPA_CIPHER_CCMP) &&
00348             !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
00349             !(ssid->pairwise_cipher & WPA_CIPHER_NONE)) {
00350                 /* Group cipher cannot be stronger than the pairwise cipher. */
00351                 wpa_printf(MSG_DEBUG, "Removed CCMP from group cipher "
00352                            "list since it was not allowed for pairwise "
00353                            "cipher for network '" TSTR "'.", netw);
00354                 ssid->group_cipher &= ~WPA_CIPHER_CCMP;
00355         }
00356 
00357         if (errors) {
00358                 wpa_config_free_ssid(ssid);
00359                 ssid = NULL;
00360         }
00361 
00362         return ssid;
00363 }
00364 
00365 
00366 static int wpa_config_read_networks(struct wpa_config *config, HKEY hk)
00367 {
00368         HKEY nhk;
00369         struct wpa_ssid *ssid, *tail = NULL, *head = NULL;
00370         int errors = 0;
00371         LONG ret;
00372         DWORD i;
00373 
00374         ret = RegOpenKeyEx(hk, TEXT("networks"), 0, KEY_ENUMERATE_SUB_KEYS,
00375                            &nhk);
00376         if (ret != ERROR_SUCCESS) {
00377                 wpa_printf(MSG_ERROR, "Could not open wpa_supplicant networks "
00378                            "registry key");
00379                 return -1;
00380         }
00381 
00382         for (i = 0; ; i++) {
00383                 TCHAR name[255];
00384                 DWORD namelen;
00385 
00386                 namelen = 255;
00387                 ret = RegEnumKeyEx(nhk, i, name, &namelen, NULL, NULL, NULL,
00388                                    NULL);
00389 
00390                 if (ret == ERROR_NO_MORE_ITEMS)
00391                         break;
00392 
00393                 if (ret != ERROR_SUCCESS) {
00394                         wpa_printf(MSG_DEBUG, "RegEnumKeyEx failed: 0x%x",
00395                                    (unsigned int) ret);
00396                         break;
00397                 }
00398 
00399                 if (namelen >= 255)
00400                         namelen = 255 - 1;
00401                 name[namelen] = '\0';
00402 
00403                 ssid = wpa_config_read_network(nhk, name, i);
00404                 if (ssid == NULL) {
00405                         wpa_printf(MSG_ERROR, "Failed to parse network "
00406                                    "profile '%s'.", name);
00407                         errors++;
00408                         continue;
00409                 }
00410                 if (head == NULL) {
00411                         head = tail = ssid;
00412                 } else {
00413                         tail->next = ssid;
00414                         tail = ssid;
00415                 }
00416                 if (wpa_config_add_prio_network(config, ssid)) {
00417                         wpa_printf(MSG_ERROR, "Failed to add network profile "
00418                                    "'%s' to priority list.", name);
00419                         errors++;
00420                         continue;
00421                 }
00422         }
00423 
00424         RegCloseKey(nhk);
00425 
00426         config->ssid = head;
00427 
00428         return errors ? -1 : 0;
00429 }
00430 
00431 
00432 struct wpa_config * wpa_config_read(const char *name)
00433 {
00434         TCHAR buf[256];
00435         int errors = 0;
00436         struct wpa_config *config;
00437         HKEY hk;
00438         LONG ret;
00439 
00440         config = wpa_config_alloc_empty(NULL, NULL);
00441         if (config == NULL)
00442                 return NULL;
00443         wpa_printf(MSG_DEBUG, "Reading configuration profile '%s'", name);
00444 
00445 #ifdef UNICODE
00446         _snwprintf(buf, 256, WPA_KEY_PREFIX TEXT("\\configs\\%S"), name);
00447 #else /* UNICODE */
00448         os_snprintf(buf, 256, WPA_KEY_PREFIX TEXT("\\configs\\%s"), name);
00449 #endif /* UNICODE */
00450 
00451         ret = RegOpenKeyEx(WPA_KEY_ROOT, buf, 0, KEY_QUERY_VALUE, &hk);
00452         if (ret != ERROR_SUCCESS) {
00453                 wpa_printf(MSG_ERROR, "Could not open wpa_supplicant "
00454                            "configuration registry HKLM\\" TSTR, buf);
00455                 os_free(config);
00456                 return NULL;
00457         }
00458 
00459         if (wpa_config_read_global(config, hk))
00460                 errors++;
00461 
00462         if (wpa_config_read_networks(config, hk))
00463                 errors++;
00464 
00465         if (wpa_config_read_blobs(config, hk))
00466                 errors++;
00467 
00468         wpa_config_debug_dump_networks(config);
00469 
00470         RegCloseKey(hk);
00471 
00472         if (errors) {
00473                 wpa_config_free(config);
00474                 config = NULL;
00475         }
00476 
00477         return config;
00478 }
00479 
00480 
00481 static int wpa_config_write_reg_dword(HKEY hk, const TCHAR *name, int val,
00482                                       int def)
00483 {
00484         LONG ret;
00485         DWORD _val = val;
00486 
00487         if (val == def) {
00488                 RegDeleteValue(hk, name);
00489                 return 0;
00490         }
00491 
00492         ret = RegSetValueEx(hk, name, 0, REG_DWORD, (LPBYTE) &_val,
00493                             sizeof(_val));
00494         if (ret != ERROR_SUCCESS) {
00495                 wpa_printf(MSG_ERROR, "WINREG: Failed to set %s=%d: error %d",
00496                            name, val, (int) GetLastError());
00497                 return -1;
00498         }
00499 
00500         return 0;
00501 }
00502 
00503 
00504 static int wpa_config_write_reg_string(HKEY hk, const char *name,
00505                                        const char *val)
00506 {
00507         LONG ret;
00508         TCHAR *_name, *_val;
00509 
00510         _name = wpa_strdup_tchar(name);
00511         if (_name == NULL)
00512                 return -1;
00513 
00514         if (val == NULL) {
00515                 RegDeleteValue(hk, _name);
00516                 os_free(_name);
00517                 return 0;
00518         }
00519 
00520         _val = wpa_strdup_tchar(val);
00521         if (_val == NULL) {
00522                 os_free(_name);
00523                 return -1;
00524         }
00525         ret = RegSetValueEx(hk, _name, 0, REG_SZ, (BYTE *) _val,
00526                             (os_strlen(val) + 1) * sizeof(TCHAR));
00527         if (ret != ERROR_SUCCESS) {
00528                 wpa_printf(MSG_ERROR, "WINREG: Failed to set %s='%s': "
00529                            "error %d", name, val, (int) GetLastError());
00530                 os_free(_name);
00531                 os_free(_val);
00532                 return -1;
00533         }
00534 
00535         os_free(_name);
00536         os_free(_val);
00537         return 0;
00538 }
00539 
00540 
00541 static int wpa_config_write_global(struct wpa_config *config, HKEY hk)
00542 {
00543 #ifdef CONFIG_CTRL_IFACE
00544         wpa_config_write_reg_string(hk, "ctrl_interface",
00545                                     config->ctrl_interface);
00546 #endif /* CONFIG_CTRL_IFACE */
00547 
00548         wpa_config_write_reg_dword(hk, TEXT("eapol_version"),
00549                                    config->eapol_version,
00550                                    DEFAULT_EAPOL_VERSION);
00551         wpa_config_write_reg_dword(hk, TEXT("ap_scan"), config->ap_scan,
00552                                    DEFAULT_AP_SCAN);
00553         wpa_config_write_reg_dword(hk, TEXT("fast_reauth"),
00554                                    config->fast_reauth, DEFAULT_FAST_REAUTH);
00555         wpa_config_write_reg_dword(hk, TEXT("dot11RSNAConfigPMKLifetime"),
00556                                    config->dot11RSNAConfigPMKLifetime, 0);
00557         wpa_config_write_reg_dword(hk,
00558                                    TEXT("dot11RSNAConfigPMKReauthThreshold"),
00559                                    config->dot11RSNAConfigPMKReauthThreshold,
00560                                    0);
00561         wpa_config_write_reg_dword(hk, TEXT("dot11RSNAConfigSATimeout"),
00562                                    config->dot11RSNAConfigSATimeout, 0);
00563         wpa_config_write_reg_dword(hk, TEXT("update_config"),
00564                                    config->update_config,
00565                                    0);
00566 #ifdef CONFIG_WPS
00567         if (!is_nil_uuid(config->uuid)) {
00568                 char buf[40];
00569                 uuid_bin2str(config->uuid, buf, sizeof(buf));
00570                 wpa_config_write_reg_string(hk, "uuid", buf);
00571         }
00572         wpa_config_write_reg_string(hk, "device_name", config->device_name);
00573         wpa_config_write_reg_string(hk, "manufacturer", config->manufacturer);
00574         wpa_config_write_reg_string(hk, "model_name", config->model_name);
00575         wpa_config_write_reg_string(hk, "model_number", config->model_number);
00576         wpa_config_write_reg_string(hk, "serial_number",
00577                                     config->serial_number);
00578         wpa_config_write_reg_string(hk, "device_type", config->device_type);
00579         wpa_config_write_reg_string(hk, "config_methods",
00580                                     config->config_methods);
00581         if (WPA_GET_BE32(config->os_version)) {
00582                 char vbuf[10];
00583                 os_snprintf(vbuf, sizeof(vbuf), "%08x",
00584                             WPA_GET_BE32(config->os_version));
00585                 wpa_config_write_reg_string(hk, "os_version", vbuf);
00586         }
00587         wpa_config_write_reg_dword(hk, TEXT("wps_cred_processing"),
00588                                    config->wps_cred_processing, 0);
00589 #endif /* CONFIG_WPS */
00590 
00591         wpa_config_write_reg_dword(hk, TEXT("bss_max_count"),
00592                                    config->bss_max_count,
00593                                    DEFAULT_BSS_MAX_COUNT);
00594         wpa_config_write_reg_dword(hk, TEXT("filter_ssids"),
00595                                    config->filter_ssids, 0);
00596 
00597         return 0;
00598 }
00599 
00600 
00601 static int wpa_config_delete_subkeys(HKEY hk, const TCHAR *key)
00602 {
00603         HKEY nhk;
00604         int i, errors = 0;
00605         LONG ret;
00606 
00607         ret = RegOpenKeyEx(hk, key, 0, KEY_ENUMERATE_SUB_KEYS | DELETE, &nhk);
00608         if (ret != ERROR_SUCCESS) {
00609                 wpa_printf(MSG_DEBUG, "WINREG: Could not open key '" TSTR
00610                            "' for subkey deletion: error 0x%x (%d)", key,
00611                            (unsigned int) ret, (int) GetLastError());
00612                 return 0;
00613         }
00614 
00615         for (i = 0; ; i++) {
00616                 TCHAR name[255];
00617                 DWORD namelen;
00618 
00619                 namelen = 255;
00620                 ret = RegEnumKeyEx(nhk, i, name, &namelen, NULL, NULL, NULL,
00621                                    NULL);
00622 
00623                 if (ret == ERROR_NO_MORE_ITEMS)
00624                         break;
00625 
00626                 if (ret != ERROR_SUCCESS) {
00627                         wpa_printf(MSG_DEBUG, "RegEnumKeyEx failed: 0x%x (%d)",
00628                                    (unsigned int) ret, (int) GetLastError());
00629                         break;
00630                 }
00631 
00632                 if (namelen >= 255)
00633                         namelen = 255 - 1;
00634                 name[namelen] = TEXT('\0');
00635 
00636                 ret = RegDeleteKey(nhk, name);
00637                 if (ret != ERROR_SUCCESS) {
00638                         wpa_printf(MSG_DEBUG, "RegDeleteKey failed: 0x%x (%d)",
00639                                    (unsigned int) ret, (int) GetLastError());
00640                         errors++;
00641                 }
00642         }
00643 
00644         RegCloseKey(nhk);
00645 
00646         return errors ? -1 : 0;
00647 }
00648 
00649 
00650 static void write_str(HKEY hk, const char *field, struct wpa_ssid *ssid)
00651 {
00652         char *value = wpa_config_get(ssid, field);
00653         if (value == NULL)
00654                 return;
00655         wpa_config_write_reg_string(hk, field, value);
00656         os_free(value);
00657 }
00658 
00659 
00660 static void write_int(HKEY hk, const char *field, int value, int def)
00661 {
00662         char val[20];
00663         if (value == def)
00664                 return;
00665         os_snprintf(val, sizeof(val), "%d", value);
00666         wpa_config_write_reg_string(hk, field, val);
00667 }
00668 
00669 
00670 static void write_bssid(HKEY hk, struct wpa_ssid *ssid)
00671 {
00672         char *value = wpa_config_get(ssid, "bssid");
00673         if (value == NULL)
00674                 return;
00675         wpa_config_write_reg_string(hk, "bssid", value);
00676         os_free(value);
00677 }
00678 
00679 
00680 static void write_psk(HKEY hk, struct wpa_ssid *ssid)
00681 {
00682         char *value = wpa_config_get(ssid, "psk");
00683         if (value == NULL)
00684                 return;
00685         wpa_config_write_reg_string(hk, "psk", value);
00686         os_free(value);
00687 }
00688 
00689 
00690 static void write_proto(HKEY hk, struct wpa_ssid *ssid)
00691 {
00692         char *value;
00693 
00694         if (ssid->proto == DEFAULT_PROTO)
00695                 return;
00696 
00697         value = wpa_config_get(ssid, "proto");
00698         if (value == NULL)
00699                 return;
00700         if (value[0])
00701                 wpa_config_write_reg_string(hk, "proto", value);
00702         os_free(value);
00703 }
00704 
00705 
00706 static void write_key_mgmt(HKEY hk, struct wpa_ssid *ssid)
00707 {
00708         char *value;
00709 
00710         if (ssid->key_mgmt == DEFAULT_KEY_MGMT)
00711                 return;
00712 
00713         value = wpa_config_get(ssid, "key_mgmt");
00714         if (value == NULL)
00715                 return;
00716         if (value[0])
00717                 wpa_config_write_reg_string(hk, "key_mgmt", value);
00718         os_free(value);
00719 }
00720 
00721 
00722 static void write_pairwise(HKEY hk, struct wpa_ssid *ssid)
00723 {
00724         char *value;
00725 
00726         if (ssid->pairwise_cipher == DEFAULT_PAIRWISE)
00727                 return;
00728 
00729         value = wpa_config_get(ssid, "pairwise");
00730         if (value == NULL)
00731                 return;
00732         if (value[0])
00733                 wpa_config_write_reg_string(hk, "pairwise", value);
00734         os_free(value);
00735 }
00736 
00737 
00738 static void write_group(HKEY hk, struct wpa_ssid *ssid)
00739 {
00740         char *value;
00741 
00742         if (ssid->group_cipher == DEFAULT_GROUP)
00743                 return;
00744 
00745         value = wpa_config_get(ssid, "group");
00746         if (value == NULL)
00747                 return;
00748         if (value[0])
00749                 wpa_config_write_reg_string(hk, "group", value);
00750         os_free(value);
00751 }
00752 
00753 
00754 static void write_auth_alg(HKEY hk, struct wpa_ssid *ssid)
00755 {
00756         char *value;
00757 
00758         if (ssid->auth_alg == 0)
00759                 return;
00760 
00761         value = wpa_config_get(ssid, "auth_alg");
00762         if (value == NULL)
00763                 return;
00764         if (value[0])
00765                 wpa_config_write_reg_string(hk, "auth_alg", value);
00766         os_free(value);
00767 }
00768 
00769 
00770 #ifdef IEEE8021X_EAPOL
00771 static void write_eap(HKEY hk, struct wpa_ssid *ssid)
00772 {
00773         char *value;
00774 
00775         value = wpa_config_get(ssid, "eap");
00776         if (value == NULL)
00777                 return;
00778 
00779         if (value[0])
00780                 wpa_config_write_reg_string(hk, "eap", value);
00781         os_free(value);
00782 }
00783 #endif /* IEEE8021X_EAPOL */
00784 
00785 
00786 static void write_wep_key(HKEY hk, int idx, struct wpa_ssid *ssid)
00787 {
00788         char field[20], *value;
00789 
00790         os_snprintf(field, sizeof(field), "wep_key%d", idx);
00791         value = wpa_config_get(ssid, field);
00792         if (value) {
00793                 wpa_config_write_reg_string(hk, field, value);
00794                 os_free(value);
00795         }
00796 }
00797 
00798 
00799 static int wpa_config_write_network(HKEY hk, struct wpa_ssid *ssid, int id)
00800 {
00801         int i, errors = 0;
00802         HKEY nhk, netw;
00803         LONG ret;
00804         TCHAR name[5];
00805 
00806         ret = RegOpenKeyEx(hk, TEXT("networks"), 0, KEY_CREATE_SUB_KEY, &nhk);
00807         if (ret != ERROR_SUCCESS) {
00808                 wpa_printf(MSG_DEBUG, "WINREG: Could not open networks key "
00809                            "for subkey addition: error 0x%x (%d)",
00810                            (unsigned int) ret, (int) GetLastError());
00811                 return 0;
00812         }
00813 
00814 #ifdef UNICODE
00815         wsprintf(name, L"%04d", id);
00816 #else /* UNICODE */
00817         os_snprintf(name, sizeof(name), "%04d", id);
00818 #endif /* UNICODE */
00819         ret = RegCreateKeyEx(nhk, name, 0, NULL, 0, KEY_WRITE, NULL, &netw,
00820                              NULL);
00821         RegCloseKey(nhk);
00822         if (ret != ERROR_SUCCESS) {
00823                 wpa_printf(MSG_DEBUG, "WINREG: Could not add network key '%s':"
00824                            " error 0x%x (%d)",
00825                            name, (unsigned int) ret, (int) GetLastError());
00826                 return -1;
00827         }
00828 
00829 #define STR(t) write_str(netw, #t, ssid)
00830 #define INT(t) write_int(netw, #t, ssid->t, 0)
00831 #define INTe(t) write_int(netw, #t, ssid->eap.t, 0)
00832 #define INT_DEF(t, def) write_int(netw, #t, ssid->t, def)
00833 #define INT_DEFe(t, def) write_int(netw, #t, ssid->eap.t, def)
00834 
00835         STR(ssid);
00836         INT(scan_ssid);
00837         write_bssid(netw, ssid);
00838         write_psk(netw, ssid);
00839         write_proto(netw, ssid);
00840         write_key_mgmt(netw, ssid);
00841         write_pairwise(netw, ssid);
00842         write_group(netw, ssid);
00843         write_auth_alg(netw, ssid);
00844 #ifdef IEEE8021X_EAPOL
00845         write_eap(netw, ssid);
00846         STR(identity);
00847         STR(anonymous_identity);
00848         STR(password);
00849         STR(ca_cert);
00850         STR(ca_path);
00851         STR(client_cert);
00852         STR(private_key);
00853         STR(private_key_passwd);
00854         STR(dh_file);
00855         STR(subject_match);
00856         STR(altsubject_match);
00857         STR(ca_cert2);
00858         STR(ca_path2);
00859         STR(client_cert2);
00860         STR(private_key2);
00861         STR(private_key2_passwd);
00862         STR(dh_file2);
00863         STR(subject_match2);
00864         STR(altsubject_match2);
00865         STR(phase1);
00866         STR(phase2);
00867         STR(pcsc);
00868         STR(pin);
00869         STR(engine_id);
00870         STR(key_id);
00871         STR(cert_id);
00872         STR(ca_cert_id);
00873         STR(key2_id);
00874         STR(pin2);
00875         STR(engine2_id);
00876         STR(cert2_id);
00877         STR(ca_cert2_id);
00878         INTe(engine);
00879         INTe(engine2);
00880         INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS);
00881 #endif /* IEEE8021X_EAPOL */
00882         for (i = 0; i < 4; i++)
00883                 write_wep_key(netw, i, ssid);
00884         INT(wep_tx_keyidx);
00885         INT(priority);
00886 #ifdef IEEE8021X_EAPOL
00887         INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND);
00888         STR(pac_file);
00889         INT_DEFe(fragment_size, DEFAULT_FRAGMENT_SIZE);
00890 #endif /* IEEE8021X_EAPOL */
00891         INT(mode);
00892         INT(proactive_key_caching);
00893         INT(disabled);
00894         INT(peerkey);
00895 #ifdef CONFIG_IEEE80211W
00896         INT(ieee80211w);
00897 #endif /* CONFIG_IEEE80211W */
00898         STR(id_str);
00899 
00900 #undef STR
00901 #undef INT
00902 #undef INT_DEF
00903 
00904         RegCloseKey(netw);
00905 
00906         return errors ? -1 : 0;
00907 }
00908 
00909 
00910 static int wpa_config_write_blob(HKEY hk, struct wpa_config_blob *blob)
00911 {
00912         HKEY bhk;
00913         LONG ret;
00914         TCHAR *name;
00915 
00916         ret = RegCreateKeyEx(hk, TEXT("blobs"), 0, NULL, 0, KEY_WRITE, NULL,
00917                              &bhk, NULL);
00918         if (ret != ERROR_SUCCESS) {
00919                 wpa_printf(MSG_DEBUG, "WINREG: Could not add blobs key: "
00920                            "error 0x%x (%d)",
00921                            (unsigned int) ret, (int) GetLastError());
00922                 return -1;
00923         }
00924 
00925         name = wpa_strdup_tchar(blob->name);
00926         ret = RegSetValueEx(bhk, name, 0, REG_BINARY, blob->data,
00927                             blob->len);
00928         if (ret != ERROR_SUCCESS) {
00929                 wpa_printf(MSG_ERROR, "WINREG: Failed to set blob %s': "
00930                            "error 0x%x (%d)", blob->name, (unsigned int) ret,
00931                            (int) GetLastError());
00932                 RegCloseKey(bhk);
00933                 os_free(name);
00934                 return -1;
00935         }
00936         os_free(name);
00937 
00938         RegCloseKey(bhk);
00939 
00940         return 0;
00941 }
00942 
00943 
00944 int wpa_config_write(const char *name, struct wpa_config *config)
00945 {
00946         TCHAR buf[256];
00947         HKEY hk;
00948         LONG ret;
00949         int errors = 0;
00950         struct wpa_ssid *ssid;
00951         struct wpa_config_blob *blob;
00952         int id;
00953 
00954         wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name);
00955 
00956 #ifdef UNICODE
00957         _snwprintf(buf, 256, WPA_KEY_PREFIX TEXT("\\configs\\%S"), name);
00958 #else /* UNICODE */
00959         os_snprintf(buf, 256, WPA_KEY_PREFIX TEXT("\\configs\\%s"), name);
00960 #endif /* UNICODE */
00961 
00962         ret = RegOpenKeyEx(WPA_KEY_ROOT, buf, 0, KEY_SET_VALUE | DELETE, &hk);
00963         if (ret != ERROR_SUCCESS) {
00964                 wpa_printf(MSG_ERROR, "Could not open wpa_supplicant "
00965                            "configuration registry %s: error %d", buf,
00966                            (int) GetLastError());
00967                 return -1;
00968         }
00969 
00970         if (wpa_config_write_global(config, hk)) {
00971                 wpa_printf(MSG_ERROR, "Failed to write global configuration "
00972                            "data");
00973                 errors++;
00974         }
00975 
00976         wpa_config_delete_subkeys(hk, TEXT("networks"));
00977         for (ssid = config->ssid, id = 0; ssid; ssid = ssid->next, id++) {
00978                 if (ssid->key_mgmt == WPA_KEY_MGMT_WPS)
00979                         continue; /* do not save temporary WPS networks */
00980                 if (wpa_config_write_network(hk, ssid, id))
00981                         errors++;
00982         }
00983 
00984         RegDeleteKey(hk, TEXT("blobs"));
00985         for (blob = config->blobs; blob; blob = blob->next) {
00986                 if (wpa_config_write_blob(hk, blob))
00987                         errors++;
00988         }
00989 
00990         RegCloseKey(hk);
00991 
00992         wpa_printf(MSG_DEBUG, "Configuration '%s' written %ssuccessfully",
00993                    name, errors ? "un" : "");
00994         return errors ? -1 : 0;
00995 }
config_winreg.c
