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