git.maemo.org Git - wpasupplicant/blob - wpa_supplicant/config_winreg.c

   1 /*
   2  * WPA Supplicant / Configuration backend: Windows registry
   3  * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  *
  14  * This file implements a configuration backend for Windows registry. All the
  15  * configuration information is stored in the registry and the format for
  16  * network configuration fields is same as described in the sample
  17  * configuration file, wpa_supplicant.conf.
  18  *
  19  * Configuration data is in
  20  * \a HKEY_LOCAL_MACHINE\\SOFTWARE\\%wpa_supplicant\\configs
  21  * key. Each configuration profile has its own key under this. In terms of text
  22  * files, each profile would map to a separate text file with possibly multiple
  23  * networks. Under each profile, there is a networks key that lists all
  24  * networks as a subkey. Each network has set of values in the same way as
  25  * network block in the configuration file. In addition, blobs subkey has
  26  * possible blobs as values.
  27  *
  28  * Example network configuration block:
  29  * \verbatim
  30 HKEY_LOCAL_MACHINE\SOFTWARE\wpa_supplicant\configs\test\networks\0000
  31    ssid="example"
  32    key_mgmt=WPA-PSK
  33 \endverbatim
  34  */
  35
  36 #include "includes.h"
  37
  38 #include "common.h"
  39 #include "uuid.h"
  40 #include "config.h"
  41
  42 #ifndef WPA_KEY_ROOT
  43 #define WPA_KEY_ROOT HKEY_LOCAL_MACHINE
  44 #endif
  45 #ifndef WPA_KEY_PREFIX
  46 #define WPA_KEY_PREFIX TEXT("SOFTWARE\\wpa_supplicant")
  47 #endif
  48
  49 #ifdef UNICODE
  50 #define TSTR "%S"
  51 #else /* UNICODE */
  52 #define TSTR "%s"
  53 #endif /* UNICODE */
  54
  55
  56 static int wpa_config_read_blobs(struct wpa_config *config, HKEY hk)
  57 {
  58         struct wpa_config_blob *blob;
  59         int errors = 0;
  60         HKEY bhk;
  61         LONG ret;
  62         DWORD i;
  63
  64         ret = RegOpenKeyEx(hk, TEXT("blobs"), 0, KEY_QUERY_VALUE, &bhk);
  65         if (ret != ERROR_SUCCESS) {
  66                 wpa_printf(MSG_DEBUG, "Could not open wpa_supplicant config "
  67                            "blobs key");
  68                 return 0; /* assume no blobs */
  69         }
  70
  71         for (i = 0; ; i++) {
  72 #define TNAMELEN 255
  73                 TCHAR name[TNAMELEN];
  74                 char data[4096];
  75                 DWORD namelen, datalen, type;
  76
  77                 namelen = TNAMELEN;
  78                 datalen = sizeof(data);
  79                 ret = RegEnumValue(bhk, i, name, &namelen, NULL, &type,
  80                                    (LPBYTE) data, &datalen);
  81
  82                 if (ret == ERROR_NO_MORE_ITEMS)
  83                         break;
  84
  85                 if (ret != ERROR_SUCCESS) {
  86                         wpa_printf(MSG_DEBUG, "RegEnumValue failed: 0x%x",
  87                                    (unsigned int) ret);
  88                         break;
  89                 }
  90
  91                 if (namelen >= TNAMELEN)
  92                         namelen = TNAMELEN - 1;
  93                 name[namelen] = TEXT('\0');
  94                 wpa_unicode2ascii_inplace(name);
  95
  96                 if (datalen >= sizeof(data))
  97                         datalen = sizeof(data) - 1;
  98
  99                 wpa_printf(MSG_MSGDUMP, "blob %d: field='%s' len %d",
 100                            (int) i, name, (int) datalen);
 101
 102                 blob = os_zalloc(sizeof(*blob));
 103                 if (blob == NULL) {
 104                         errors++;
 105                         break;
 106                 }
 107                 blob->name = os_strdup((char *) name);
 108                 blob->data = os_malloc(datalen);
 109                 if (blob->name == NULL || blob->data == NULL) {
 110                         wpa_config_free_blob(blob);
 111                         errors++;
 112                         break;
 113                 }
 114                 os_memcpy(blob->data, data, datalen);
 115                 blob->len = datalen;
 116
 117                 wpa_config_set_blob(config, blob);
 118         }
 119
 120         RegCloseKey(bhk);
 121
 122         return errors ? -1 : 0;
 123 }
 124
 125
 126 static int wpa_config_read_reg_dword(HKEY hk, const TCHAR *name, int *_val)
 127 {
 128         DWORD val, buflen;
 129         LONG ret;
 130
 131         buflen = sizeof(val);
 132         ret = RegQueryValueEx(hk, name, NULL, NULL, (LPBYTE) &val, &buflen);
 133         if (ret == ERROR_SUCCESS && buflen == sizeof(val)) {
 134                 wpa_printf(MSG_DEBUG, TSTR "=%d", name, (int) val);
 135                 *_val = val;
 136                 return 0;
 137         }
 138
 139         return -1;
 140 }
 141
 142
 143 static char * wpa_config_read_reg_string(HKEY hk, const TCHAR *name)
 144 {
 145         DWORD buflen;
 146         LONG ret;
 147         TCHAR *val;
 148
 149         buflen = 0;
 150         ret = RegQueryValueEx(hk, name, NULL, NULL, NULL, &buflen);
 151         if (ret != ERROR_SUCCESS)
 152                 return NULL;
 153         val = os_malloc(buflen);
 154         if (val == NULL)
 155                 return NULL;
 156
 157         ret = RegQueryValueEx(hk, name, NULL, NULL, (LPBYTE) val, &buflen);
 158         if (ret != ERROR_SUCCESS) {
 159                 os_free(val);
 160                 return NULL;
 161         }
 162
 163         wpa_unicode2ascii_inplace(val);
 164         wpa_printf(MSG_DEBUG, TSTR "=%s", name, (char *) val);
 165         return (char *) val;
 166 }
 167
 168
 169 #ifdef CONFIG_WPS
 170 static int wpa_config_read_global_uuid(struct wpa_config *config, HKEY hk)
 171 {
 172         char *str;
 173         int ret = 0;
 174
 175         str = wpa_config_read_reg_string(hk, TEXT("uuid"));
 176         if (str == NULL)
 177                 return 0;
 178
 179         if (uuid_str2bin(str, config->uuid))
 180                 ret = -1;
 181
 182         os_free(str);
 183
 184         return ret;
 185 }
 186
 187
 188 static int wpa_config_read_global_os_version(struct wpa_config *config,
 189                                              HKEY hk)
 190 {
 191         char *str;
 192         int ret = 0;
 193
 194         str = wpa_config_read_reg_string(hk, TEXT("os_version"));
 195         if (str == NULL)
 196                 return 0;
 197
 198         if (hexstr2bin(str, config->os_version, 4))
 199                 ret = -1;
 200
 201         os_free(str);
 202
 203         return ret;
 204 }
 205 #endif /* CONFIG_WPS */
 206
 207
 208 static int wpa_config_read_global(struct wpa_config *config, HKEY hk)
 209 {
 210         int errors = 0;
 211
 212         wpa_config_read_reg_dword(hk, TEXT("ap_scan"), &config->ap_scan);
 213         wpa_config_read_reg_dword(hk, TEXT("fast_reauth"),
 214                                   &config->fast_reauth);
 215         wpa_config_read_reg_dword(hk, TEXT("dot11RSNAConfigPMKLifetime"),
 216                                   (int *) &config->dot11RSNAConfigPMKLifetime);
 217         wpa_config_read_reg_dword(hk,
 218                                   TEXT("dot11RSNAConfigPMKReauthThreshold"),
 219                                   (int *)
 220                                   &config->dot11RSNAConfigPMKReauthThreshold);
 221         wpa_config_read_reg_dword(hk, TEXT("dot11RSNAConfigSATimeout"),
 222                                   (int *) &config->dot11RSNAConfigSATimeout);
 223         wpa_config_read_reg_dword(hk, TEXT("update_config"),
 224                                   &config->update_config);
 225
 226         if (wpa_config_read_reg_dword(hk, TEXT("eapol_version"),
 227                                       &config->eapol_version) == 0) {
 228                 if (config->eapol_version < 1 ||
 229                     config->eapol_version > 2) {
 230                         wpa_printf(MSG_ERROR, "Invalid EAPOL version (%d)",
 231                                    config->eapol_version);
 232                         errors++;
 233                 }
 234         }
 235
 236         config->ctrl_interface = wpa_config_read_reg_string(
 237                 hk, TEXT("ctrl_interface"));
 238
 239 #ifdef CONFIG_WPS
 240         if (wpa_config_read_global_uuid(config, hk))
 241                 errors++;
 242         config->device_name = wpa_config_read_reg_string(
 243                 hk, TEXT("device_name"));
 244         config->manufacturer = wpa_config_read_reg_string(
 245                 hk, TEXT("manufacturer"));
 246         config->model_name = wpa_config_read_reg_string(
 247                 hk, TEXT("model_name"));
 248         config->serial_number = wpa_config_read_reg_string(
 249                 hk, TEXT("serial_number"));
 250         config->device_type = wpa_config_read_reg_string(
 251                 hk, TEXT("device_type"));
 252         if (wpa_config_read_global_os_version(config, hk))
 253                 errors++;
 254 #endif /* CONFIG_WPS */
 255
 256         return errors ? -1 : 0;
 257 }
 258
 259
 260 static struct wpa_ssid * wpa_config_read_network(HKEY hk, const TCHAR *netw,
 261                                                  int id)
 262 {
 263         HKEY nhk;
 264         LONG ret;
 265         DWORD i;
 266         struct wpa_ssid *ssid;
 267         int errors = 0;
 268
 269         ret = RegOpenKeyEx(hk, netw, 0, KEY_QUERY_VALUE, &nhk);
 270         if (ret != ERROR_SUCCESS) {
 271                 wpa_printf(MSG_DEBUG, "Could not open wpa_supplicant config "
 272                            "network '" TSTR "'", netw);
 273                 return NULL;
 274         }
 275
 276         wpa_printf(MSG_MSGDUMP, "Start of a new network '" TSTR "'", netw);
 277         ssid = os_zalloc(sizeof(*ssid));
 278         if (ssid == NULL) {
 279                 RegCloseKey(nhk);
 280                 return NULL;
 281         }
 282         ssid->id = id;
 283
 284         wpa_config_set_network_defaults(ssid);
 285
 286         for (i = 0; ; i++) {
 287                 TCHAR name[255], data[1024];
 288                 DWORD namelen, datalen, type;
 289
 290                 namelen = 255;
 291                 datalen = sizeof(data);
 292                 ret = RegEnumValue(nhk, i, name, &namelen, NULL, &type,
 293                                    (LPBYTE) data, &datalen);
 294
 295                 if (ret == ERROR_NO_MORE_ITEMS)
 296                         break;
 297
 298                 if (ret != ERROR_SUCCESS) {
 299                         wpa_printf(MSG_ERROR, "RegEnumValue failed: 0x%x",
 300                                    (unsigned int) ret);
 301                         break;
 302                 }
 303
 304                 if (namelen >= 255)
 305                         namelen = 255 - 1;
 306                 name[namelen] = TEXT('\0');
 307
 308                 if (datalen >= 1024)
 309                         datalen = 1024 - 1;
 310                 data[datalen] = TEXT('\0');
 311
 312                 wpa_unicode2ascii_inplace(name);
 313                 wpa_unicode2ascii_inplace(data);
 314                 if (wpa_config_set(ssid, (char *) name, (char *) data, 0) < 0)
 315                         errors++;
 316         }
 317
 318         RegCloseKey(nhk);
 319
 320         if (ssid->passphrase) {
 321                 if (ssid->psk_set) {
 322                         wpa_printf(MSG_ERROR, "Both PSK and passphrase "
 323                                    "configured for network '" TSTR "'.", netw);
 324                         errors++;
 325                 }
 326                 wpa_config_update_psk(ssid);
 327         }
 328
 329         if ((ssid->key_mgmt & (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_FT_PSK |
 330                                WPA_KEY_MGMT_PSK_SHA256)) &&
 331             !ssid->psk_set) {
 332                 wpa_printf(MSG_ERROR, "WPA-PSK accepted for key management, "
 333                            "but no PSK configured for network '" TSTR "'.",
 334                            netw);
 335                 errors++;
 336         }
 337
 338         if ((ssid->group_cipher & WPA_CIPHER_CCMP) &&
 339             !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
 340             !(ssid->pairwise_cipher & WPA_CIPHER_NONE)) {
 341                 /* Group cipher cannot be stronger than the pairwise cipher. */
 342                 wpa_printf(MSG_DEBUG, "Removed CCMP from group cipher "
 343                            "list since it was not allowed for pairwise "
 344                            "cipher for network '" TSTR "'.", netw);
 345                 ssid->group_cipher &= ~WPA_CIPHER_CCMP;
 346         }
 347
 348         if (errors) {
 349                 wpa_config_free_ssid(ssid);
 350                 ssid = NULL;
 351         }
 352
 353         return ssid;
 354 }
 355
 356
 357 static int wpa_config_read_networks(struct wpa_config *config, HKEY hk)
 358 {
 359         HKEY nhk;
 360         struct wpa_ssid *ssid, *tail = NULL, *head = NULL;
 361         int errors = 0;
 362         LONG ret;
 363         DWORD i;
 364
 365         ret = RegOpenKeyEx(hk, TEXT("networks"), 0, KEY_ENUMERATE_SUB_KEYS,
 366                            &nhk);
 367         if (ret != ERROR_SUCCESS) {
 368                 wpa_printf(MSG_ERROR, "Could not open wpa_supplicant networks "
 369                            "registry key");
 370                 return -1;
 371         }
 372
 373         for (i = 0; ; i++) {
 374                 TCHAR name[255];
 375                 DWORD namelen;
 376
 377                 namelen = 255;
 378                 ret = RegEnumKeyEx(nhk, i, name, &namelen, NULL, NULL, NULL,
 379                                    NULL);
 380
 381                 if (ret == ERROR_NO_MORE_ITEMS)
 382                         break;
 383
 384                 if (ret != ERROR_SUCCESS) {
 385                         wpa_printf(MSG_DEBUG, "RegEnumKeyEx failed: 0x%x",
 386                                    (unsigned int) ret);
 387                         break;
 388                 }
 389
 390                 if (namelen >= 255)
 391                         namelen = 255 - 1;
 392                 name[namelen] = '\0';
 393
 394                 ssid = wpa_config_read_network(nhk, name, i);
 395                 if (ssid == NULL) {
 396                         wpa_printf(MSG_ERROR, "Failed to parse network "
 397                                    "profile '%s'.", name);
 398                         errors++;
 399                         continue;
 400                 }
 401                 if (head == NULL) {
 402                         head = tail = ssid;
 403                 } else {
 404                         tail->next = ssid;
 405                         tail = ssid;
 406                 }
 407                 if (wpa_config_add_prio_network(config, ssid)) {
 408                         wpa_printf(MSG_ERROR, "Failed to add network profile "
 409                                    "'%s' to priority list.", name);
 410                         errors++;
 411                         continue;
 412                 }
 413         }
 414
 415         RegCloseKey(nhk);
 416
 417         config->ssid = head;
 418
 419         return errors ? -1 : 0;
 420 }
 421
 422
 423 struct wpa_config * wpa_config_read(const char *name)
 424 {
 425         TCHAR buf[256];
 426         int errors = 0;
 427         struct wpa_config *config;
 428         HKEY hk;
 429         LONG ret;
 430
 431         config = wpa_config_alloc_empty(NULL, NULL);
 432         if (config == NULL)
 433                 return NULL;
 434         wpa_printf(MSG_DEBUG, "Reading configuration profile '%s'", name);
 435
 436 #ifdef UNICODE
 437         _snwprintf(buf, 256, WPA_KEY_PREFIX TEXT("\\configs\\%S"), name);
 438 #else /* UNICODE */
 439         os_snprintf(buf, 256, WPA_KEY_PREFIX TEXT("\\configs\\%s"), name);
 440 #endif /* UNICODE */
 441
 442         ret = RegOpenKeyEx(WPA_KEY_ROOT, buf, 0, KEY_QUERY_VALUE, &hk);
 443         if (ret != ERROR_SUCCESS) {
 444                 wpa_printf(MSG_ERROR, "Could not open wpa_supplicant "
 445                            "configuration registry HKLM\\" TSTR, buf);
 446                 os_free(config);
 447                 return NULL;
 448         }
 449
 450         if (wpa_config_read_global(config, hk))
 451                 errors++;
 452
 453         if (wpa_config_read_networks(config, hk))
 454                 errors++;
 455
 456         if (wpa_config_read_blobs(config, hk))
 457                 errors++;
 458
 459         wpa_config_debug_dump_networks(config);
 460
 461         RegCloseKey(hk);
 462
 463         if (errors) {
 464                 wpa_config_free(config);
 465                 config = NULL;
 466         }
 467
 468         return config;
 469 }
 470
 471
 472 static int wpa_config_write_reg_dword(HKEY hk, const TCHAR *name, int val,
 473                                       int def)
 474 {
 475         LONG ret;
 476         DWORD _val = val;
 477
 478         if (val == def) {
 479                 RegDeleteValue(hk, name);
 480                 return 0;
 481         }
 482
 483         ret = RegSetValueEx(hk, name, 0, REG_DWORD, (LPBYTE) &_val,
 484                             sizeof(_val));
 485         if (ret != ERROR_SUCCESS) {
 486                 wpa_printf(MSG_ERROR, "WINREG: Failed to set %s=%d: error %d",
 487                            name, val, (int) GetLastError());
 488                 return -1;
 489         }
 490
 491         return 0;
 492 }
 493
 494
 495 static int wpa_config_write_reg_string(HKEY hk, const char *name,
 496                                        const char *val)
 497 {
 498         LONG ret;
 499         TCHAR *_name, *_val;
 500
 501         _name = wpa_strdup_tchar(name);
 502         if (_name == NULL)
 503                 return -1;
 504
 505         if (val == NULL) {
 506                 RegDeleteValue(hk, _name);
 507                 os_free(_name);
 508                 return 0;
 509         }
 510
 511         _val = wpa_strdup_tchar(val);
 512         if (_val == NULL) {
 513                 os_free(_name);
 514                 return -1;
 515         }
 516         ret = RegSetValueEx(hk, _name, 0, REG_SZ, (BYTE *) _val,
 517                             (os_strlen(val) + 1) * sizeof(TCHAR));
 518         if (ret != ERROR_SUCCESS) {
 519                 wpa_printf(MSG_ERROR, "WINREG: Failed to set %s='%s': "
 520                            "error %d", name, val, (int) GetLastError());
 521                 os_free(_name);
 522                 os_free(_val);
 523                 return -1;
 524         }
 525
 526         os_free(_name);
 527         os_free(_val);
 528         return 0;
 529 }
 530
 531
 532 static int wpa_config_write_global(struct wpa_config *config, HKEY hk)
 533 {
 534 #ifdef CONFIG_CTRL_IFACE
 535         wpa_config_write_reg_string(hk, "ctrl_interface",
 536                                     config->ctrl_interface);
 537 #endif /* CONFIG_CTRL_IFACE */
 538
 539         wpa_config_write_reg_dword(hk, TEXT("eapol_version"),
 540                                    config->eapol_version,
 541                                    DEFAULT_EAPOL_VERSION);
 542         wpa_config_write_reg_dword(hk, TEXT("ap_scan"), config->ap_scan,
 543                                    DEFAULT_AP_SCAN);
 544         wpa_config_write_reg_dword(hk, TEXT("fast_reauth"),
 545                                    config->fast_reauth, DEFAULT_FAST_REAUTH);
 546         wpa_config_write_reg_dword(hk, TEXT("dot11RSNAConfigPMKLifetime"),
 547                                    config->dot11RSNAConfigPMKLifetime, 0);
 548         wpa_config_write_reg_dword(hk,
 549                                    TEXT("dot11RSNAConfigPMKReauthThreshold"),
 550                                    config->dot11RSNAConfigPMKReauthThreshold,
 551                                    0);
 552         wpa_config_write_reg_dword(hk, TEXT("dot11RSNAConfigSATimeout"),
 553                                    config->dot11RSNAConfigSATimeout, 0);
 554         wpa_config_write_reg_dword(hk, TEXT("update_config"),
 555                                    config->update_config,
 556                                    0);
 557 #ifdef CONFIG_WPS
 558         if (!is_nil_uuid(config->uuid)) {
 559                 char buf[40];
 560                 uuid_bin2str(config->uuid, buf, sizeof(buf));
 561                 wpa_config_write_reg_string(hk, "uuid", buf);
 562         }
 563         wpa_config_write_reg_string(hk, "device_name", config->device_name);
 564         wpa_config_write_reg_string(hk, "manufacturer", config->manufacturer);
 565         wpa_config_write_reg_string(hk, "model_name", config->model_name);
 566         wpa_config_write_reg_string(hk, "model_number", config->model_number);
 567         wpa_config_write_reg_string(hk, "serial_number",
 568                                     config->serial_number);
 569         wpa_config_write_reg_string(hk, "device_type", config->device_type);
 570         if (WPA_GET_BE32(config->os_version)) {
 571                 char vbuf[10];
 572                 os_snprintf(vbuf, sizeof(vbuf), "%08x",
 573                             WPA_GET_BE32(config->os_version));
 574                 wpa_config_write_reg_string(hk, "os_version", vbuf);
 575         }
 576 #endif /* CONFIG_WPS */
 577
 578         return 0;
 579 }
 580
 581
 582 static int wpa_config_delete_subkeys(HKEY hk, const TCHAR *key)
 583 {
 584         HKEY nhk;
 585         int i, errors = 0;
 586         LONG ret;
 587
 588         ret = RegOpenKeyEx(hk, key, 0, KEY_ENUMERATE_SUB_KEYS | DELETE, &nhk);
 589         if (ret != ERROR_SUCCESS) {
 590                 wpa_printf(MSG_DEBUG, "WINREG: Could not open key '" TSTR
 591                            "' for subkey deletion: error 0x%x (%d)", key,
 592                            (unsigned int) ret, (int) GetLastError());
 593                 return 0;
 594         }
 595
 596         for (i = 0; ; i++) {
 597                 TCHAR name[255];
 598                 DWORD namelen;
 599
 600                 namelen = 255;
 601                 ret = RegEnumKeyEx(nhk, i, name, &namelen, NULL, NULL, NULL,
 602                                    NULL);
 603
 604                 if (ret == ERROR_NO_MORE_ITEMS)
 605                         break;
 606
 607                 if (ret != ERROR_SUCCESS) {
 608                         wpa_printf(MSG_DEBUG, "RegEnumKeyEx failed: 0x%x (%d)",
 609                                    (unsigned int) ret, (int) GetLastError());
 610                         break;
 611                 }
 612
 613                 if (namelen >= 255)
 614                         namelen = 255 - 1;
 615                 name[namelen] = TEXT('\0');
 616
 617                 ret = RegDeleteKey(nhk, name);
 618                 if (ret != ERROR_SUCCESS) {
 619                         wpa_printf(MSG_DEBUG, "RegDeleteKey failed: 0x%x (%d)",
 620                                    (unsigned int) ret, (int) GetLastError());
 621                         errors++;
 622                 }
 623         }
 624
 625         RegCloseKey(nhk);
 626
 627         return errors ? -1 : 0;
 628 }
 629
 630
 631 static void write_str(HKEY hk, const char *field, struct wpa_ssid *ssid)
 632 {
 633         char *value = wpa_config_get(ssid, field);
 634         if (value == NULL)
 635                 return;
 636         wpa_config_write_reg_string(hk, field, value);
 637         os_free(value);
 638 }
 639
 640
 641 static void write_int(HKEY hk, const char *field, int value, int def)
 642 {
 643         char val[20];
 644         if (value == def)
 645                 return;
 646         os_snprintf(val, sizeof(val), "%d", value);
 647         wpa_config_write_reg_string(hk, field, val);
 648 }
 649
 650
 651 static void write_bssid(HKEY hk, struct wpa_ssid *ssid)
 652 {
 653         char *value = wpa_config_get(ssid, "bssid");
 654         if (value == NULL)
 655                 return;
 656         wpa_config_write_reg_string(hk, "bssid", value);
 657         os_free(value);
 658 }
 659
 660
 661 static void write_psk(HKEY hk, struct wpa_ssid *ssid)
 662 {
 663         char *value = wpa_config_get(ssid, "psk");
 664         if (value == NULL)
 665                 return;
 666         wpa_config_write_reg_string(hk, "psk", value);
 667         os_free(value);
 668 }
 669
 670
 671 static void write_proto(HKEY hk, struct wpa_ssid *ssid)
 672 {
 673         char *value;
 674
 675         if (ssid->proto == DEFAULT_PROTO)
 676                 return;
 677
 678         value = wpa_config_get(ssid, "proto");
 679         if (value == NULL)
 680                 return;
 681         if (value[0])
 682                 wpa_config_write_reg_string(hk, "proto", value);
 683         os_free(value);
 684 }
 685
 686
 687 static void write_key_mgmt(HKEY hk, struct wpa_ssid *ssid)
 688 {
 689         char *value;
 690
 691         if (ssid->key_mgmt == DEFAULT_KEY_MGMT)
 692                 return;
 693
 694         value = wpa_config_get(ssid, "key_mgmt");
 695         if (value == NULL)
 696                 return;
 697         if (value[0])
 698                 wpa_config_write_reg_string(hk, "key_mgmt", value);
 699         os_free(value);
 700 }
 701
 702
 703 static void write_pairwise(HKEY hk, struct wpa_ssid *ssid)
 704 {
 705         char *value;
 706
 707         if (ssid->pairwise_cipher == DEFAULT_PAIRWISE)
 708                 return;
 709
 710         value = wpa_config_get(ssid, "pairwise");
 711         if (value == NULL)
 712                 return;
 713         if (value[0])
 714                 wpa_config_write_reg_string(hk, "pairwise", value);
 715         os_free(value);
 716 }
 717
 718
 719 static void write_group(HKEY hk, struct wpa_ssid *ssid)
 720 {
 721         char *value;
 722
 723         if (ssid->group_cipher == DEFAULT_GROUP)
 724                 return;
 725
 726         value = wpa_config_get(ssid, "group");
 727         if (value == NULL)
 728                 return;
 729         if (value[0])
 730                 wpa_config_write_reg_string(hk, "group", value);
 731         os_free(value);
 732 }
 733
 734
 735 static void write_auth_alg(HKEY hk, struct wpa_ssid *ssid)
 736 {
 737         char *value;
 738
 739         if (ssid->auth_alg == 0)
 740                 return;
 741
 742         value = wpa_config_get(ssid, "auth_alg");
 743         if (value == NULL)
 744                 return;
 745         if (value[0])
 746                 wpa_config_write_reg_string(hk, "auth_alg", value);
 747         os_free(value);
 748 }
 749
 750
 751 #ifdef IEEE8021X_EAPOL
 752 static void write_eap(HKEY hk, struct wpa_ssid *ssid)
 753 {
 754         char *value;
 755
 756         value = wpa_config_get(ssid, "eap");
 757         if (value == NULL)
 758                 return;
 759
 760         if (value[0])
 761                 wpa_config_write_reg_string(hk, "eap", value);
 762         os_free(value);
 763 }
 764 #endif /* IEEE8021X_EAPOL */
 765
 766
 767 static void write_wep_key(HKEY hk, int idx, struct wpa_ssid *ssid)
 768 {
 769         char field[20], *value;
 770
 771         os_snprintf(field, sizeof(field), "wep_key%d", idx);
 772         value = wpa_config_get(ssid, field);
 773         if (value) {
 774                 wpa_config_write_reg_string(hk, field, value);
 775                 os_free(value);
 776         }
 777 }
 778
 779
 780 static int wpa_config_write_network(HKEY hk, struct wpa_ssid *ssid, int id)
 781 {
 782         int i, errors = 0;
 783         HKEY nhk, netw;
 784         LONG ret;
 785         TCHAR name[5];
 786
 787         ret = RegOpenKeyEx(hk, TEXT("networks"), 0, KEY_CREATE_SUB_KEY, &nhk);
 788         if (ret != ERROR_SUCCESS) {
 789                 wpa_printf(MSG_DEBUG, "WINREG: Could not open networks key "
 790                            "for subkey addition: error 0x%x (%d)",
 791                            (unsigned int) ret, (int) GetLastError());
 792                 return 0;
 793         }
 794
 795 #ifdef UNICODE
 796         wsprintf(name, L"%04d", id);
 797 #else /* UNICODE */
 798         os_snprintf(name, sizeof(name), "%04d", id);
 799 #endif /* UNICODE */
 800         ret = RegCreateKeyEx(nhk, name, 0, NULL, 0, KEY_WRITE, NULL, &netw,
 801                              NULL);
 802         RegCloseKey(nhk);
 803         if (ret != ERROR_SUCCESS) {
 804                 wpa_printf(MSG_DEBUG, "WINREG: Could not add network key '%s':"
 805                            " error 0x%x (%d)",
 806                            name, (unsigned int) ret, (int) GetLastError());
 807                 return -1;
 808         }
 809
 810 #define STR(t) write_str(netw, #t, ssid)
 811 #define INT(t) write_int(netw, #t, ssid->t, 0)
 812 #define INTe(t) write_int(netw, #t, ssid->eap.t, 0)
 813 #define INT_DEF(t, def) write_int(netw, #t, ssid->t, def)
 814 #define INT_DEFe(t, def) write_int(netw, #t, ssid->eap.t, def)
 815
 816         STR(ssid);
 817         INT(scan_ssid);
 818         write_bssid(netw, ssid);
 819         write_psk(netw, ssid);
 820         write_proto(netw, ssid);
 821         write_key_mgmt(netw, ssid);
 822         write_pairwise(netw, ssid);
 823         write_group(netw, ssid);
 824         write_auth_alg(netw, ssid);
 825 #ifdef IEEE8021X_EAPOL
 826         write_eap(netw, ssid);
 827         STR(identity);
 828         STR(anonymous_identity);
 829         STR(password);
 830         STR(ca_cert);
 831         STR(ca_path);
 832         STR(client_cert);
 833         STR(private_key);
 834         STR(private_key_passwd);
 835         STR(dh_file);
 836         STR(subject_match);
 837         STR(altsubject_match);
 838         STR(ca_cert2);
 839         STR(ca_path2);
 840         STR(client_cert2);
 841         STR(private_key2);
 842         STR(private_key2_passwd);
 843         STR(dh_file2);
 844         STR(subject_match2);
 845         STR(altsubject_match2);
 846         STR(phase1);
 847         STR(phase2);
 848         STR(pcsc);
 849         STR(pin);
 850         STR(engine_id);
 851         STR(key_id);
 852         STR(cert_id);
 853         STR(ca_cert_id);
 854         STR(key2_id);
 855         STR(pin2);
 856         STR(engine2_id);
 857         STR(cert2_id);
 858         STR(ca_cert2_id);
 859         INTe(engine);
 860         INTe(engine2);
 861         INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS);
 862 #endif /* IEEE8021X_EAPOL */
 863         for (i = 0; i < 4; i++)
 864                 write_wep_key(netw, i, ssid);
 865         INT(wep_tx_keyidx);
 866         INT(priority);
 867 #ifdef IEEE8021X_EAPOL
 868         INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND);
 869         STR(pac_file);
 870         INT_DEFe(fragment_size, DEFAULT_FRAGMENT_SIZE);
 871 #endif /* IEEE8021X_EAPOL */
 872         INT(mode);
 873         INT(proactive_key_caching);
 874         INT(disabled);
 875         INT(peerkey);
 876 #ifdef CONFIG_IEEE80211W
 877         INT(ieee80211w);
 878 #endif /* CONFIG_IEEE80211W */
 879         STR(id_str);
 880
 881 #undef STR
 882 #undef INT
 883 #undef INT_DEF
 884
 885         RegCloseKey(netw);
 886
 887         return errors ? -1 : 0;
 888 }
 889
 890
 891 static int wpa_config_write_blob(HKEY hk, struct wpa_config_blob *blob)
 892 {
 893         HKEY bhk;
 894         LONG ret;
 895         TCHAR *name;
 896
 897         ret = RegCreateKeyEx(hk, TEXT("blobs"), 0, NULL, 0, KEY_WRITE, NULL,
 898                              &bhk, NULL);
 899         if (ret != ERROR_SUCCESS) {
 900                 wpa_printf(MSG_DEBUG, "WINREG: Could not add blobs key: "
 901                            "error 0x%x (%d)",
 902                            (unsigned int) ret, (int) GetLastError());
 903                 return -1;
 904         }
 905
 906         name = wpa_strdup_tchar(blob->name);
 907         ret = RegSetValueEx(bhk, name, 0, REG_BINARY, blob->data,
 908                             blob->len);
 909         if (ret != ERROR_SUCCESS) {
 910                 wpa_printf(MSG_ERROR, "WINREG: Failed to set blob %s': "
 911                            "error 0x%x (%d)", blob->name, (unsigned int) ret,
 912                            (int) GetLastError());
 913                 RegCloseKey(bhk);
 914                 os_free(name);
 915                 return -1;
 916         }
 917         os_free(name);
 918
 919         RegCloseKey(bhk);
 920
 921         return 0;
 922 }
 923
 924
 925 int wpa_config_write(const char *name, struct wpa_config *config)
 926 {
 927         TCHAR buf[256];
 928         HKEY hk;
 929         LONG ret;
 930         int errors = 0;
 931         struct wpa_ssid *ssid;
 932         struct wpa_config_blob *blob;
 933         int id;
 934
 935         wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name);
 936
 937 #ifdef UNICODE
 938         _snwprintf(buf, 256, WPA_KEY_PREFIX TEXT("\\configs\\%S"), name);
 939 #else /* UNICODE */
 940         os_snprintf(buf, 256, WPA_KEY_PREFIX TEXT("\\configs\\%s"), name);
 941 #endif /* UNICODE */
 942
 943         ret = RegOpenKeyEx(WPA_KEY_ROOT, buf, 0, KEY_SET_VALUE | DELETE, &hk);
 944         if (ret != ERROR_SUCCESS) {
 945                 wpa_printf(MSG_ERROR, "Could not open wpa_supplicant "
 946                            "configuration registry %s: error %d", buf,
 947                            (int) GetLastError());
 948                 return -1;
 949         }
 950
 951         if (wpa_config_write_global(config, hk)) {
 952                 wpa_printf(MSG_ERROR, "Failed to write global configuration "
 953                            "data");
 954                 errors++;
 955         }
 956
 957         wpa_config_delete_subkeys(hk, TEXT("networks"));
 958         for (ssid = config->ssid, id = 0; ssid; ssid = ssid->next, id++) {
 959                 if (ssid->key_mgmt == WPA_KEY_MGMT_WPS)
 960                         continue; /* do not save temporary WPS networks */
 961                 if (wpa_config_write_network(hk, ssid, id))
 962                         errors++;
 963         }
 964
 965         RegDeleteKey(hk, TEXT("blobs"));
 966         for (blob = config->blobs; blob; blob = blob->next) {
 967                 if (wpa_config_write_blob(hk, blob))
 968                         errors++;
 969         }
 970
 971         RegCloseKey(hk);
 972
 973         wpa_printf(MSG_DEBUG, "Configuration '%s' written %ssuccessfully",
 974                    name, errors ? "un" : "");
 975         return errors ? -1 : 0;
 976 }