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
wpa_config_read_blobs(struct wpa_config * config,HKEY hk)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
wpa_config_read_reg_dword(HKEY hk,const TCHAR * name,int * _val)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
wpa_config_read_reg_string(HKEY hk,const TCHAR * name)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
wpa_config_read_global_uuid(struct wpa_config * config,HKEY hk)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
wpa_config_read_global_os_version(struct wpa_config * config,HKEY hk)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
wpa_config_read_global(struct wpa_config * config,HKEY hk)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 {
251 char *t = wpa_config_read_reg_string(
252 hk, TEXT("device_type"));
253 if (t && wps_dev_type_str2bin(t, config->device_type))
254 errors++;
255 os_free(t);
256 }
257 config->config_methods = wpa_config_read_reg_string(
258 hk, TEXT("config_methods"));
259 if (wpa_config_read_global_os_version(config, hk))
260 errors++;
261 wpa_config_read_reg_dword(hk, TEXT("wps_cred_processing"),
262 &config->wps_cred_processing);
263 #endif /* CONFIG_WPS */
264 #ifdef CONFIG_P2P
265 config->p2p_ssid_postfix = wpa_config_read_reg_string(
266 hk, TEXT("p2p_ssid_postfix"));
267 wpa_config_read_reg_dword(hk, TEXT("p2p_group_idle"),
268 (int *) &config->p2p_group_idle);
269 #endif /* CONFIG_P2P */
270
271 wpa_config_read_reg_dword(hk, TEXT("bss_max_count"),
272 (int *) &config->bss_max_count);
273 wpa_config_read_reg_dword(hk, TEXT("filter_ssids"),
274 &config->filter_ssids);
275 wpa_config_read_reg_dword(hk, TEXT("max_num_sta"),
276 (int *) &config->max_num_sta);
277 wpa_config_read_reg_dword(hk, TEXT("disassoc_low_ack"),
278 (int *) &config->disassoc_low_ack);
279
280 return errors ? -1 : 0;
281 }
282
283
wpa_config_read_network(HKEY hk,const TCHAR * netw,int id)284 static struct wpa_ssid * wpa_config_read_network(HKEY hk, const TCHAR *netw,
285 int id)
286 {
287 HKEY nhk;
288 LONG ret;
289 DWORD i;
290 struct wpa_ssid *ssid;
291 int errors = 0;
292
293 ret = RegOpenKeyEx(hk, netw, 0, KEY_QUERY_VALUE, &nhk);
294 if (ret != ERROR_SUCCESS) {
295 wpa_printf(MSG_DEBUG, "Could not open wpa_supplicant config "
296 "network '" TSTR "'", netw);
297 return NULL;
298 }
299
300 wpa_printf(MSG_MSGDUMP, "Start of a new network '" TSTR "'", netw);
301 ssid = os_zalloc(sizeof(*ssid));
302 if (ssid == NULL) {
303 RegCloseKey(nhk);
304 return NULL;
305 }
306 ssid->id = id;
307
308 wpa_config_set_network_defaults(ssid);
309
310 for (i = 0; ; i++) {
311 TCHAR name[255], data[1024];
312 DWORD namelen, datalen, type;
313
314 namelen = 255;
315 datalen = sizeof(data);
316 ret = RegEnumValue(nhk, i, name, &namelen, NULL, &type,
317 (LPBYTE) data, &datalen);
318
319 if (ret == ERROR_NO_MORE_ITEMS)
320 break;
321
322 if (ret != ERROR_SUCCESS) {
323 wpa_printf(MSG_ERROR, "RegEnumValue failed: 0x%x",
324 (unsigned int) ret);
325 break;
326 }
327
328 if (namelen >= 255)
329 namelen = 255 - 1;
330 name[namelen] = TEXT('\0');
331
332 if (datalen >= 1024)
333 datalen = 1024 - 1;
334 data[datalen] = TEXT('\0');
335
336 wpa_unicode2ascii_inplace(name);
337 wpa_unicode2ascii_inplace(data);
338 if (wpa_config_set(ssid, (char *) name, (char *) data, 0) < 0)
339 errors++;
340 }
341
342 RegCloseKey(nhk);
343
344 if (ssid->passphrase) {
345 if (ssid->psk_set) {
346 wpa_printf(MSG_ERROR, "Both PSK and passphrase "
347 "configured for network '" TSTR "'.", netw);
348 errors++;
349 }
350 wpa_config_update_psk(ssid);
351 }
352
353 if ((ssid->key_mgmt & (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_FT_PSK |
354 WPA_KEY_MGMT_PSK_SHA256)) &&
355 !ssid->psk_set) {
356 wpa_printf(MSG_ERROR, "WPA-PSK accepted for key management, "
357 "but no PSK configured for network '" TSTR "'.",
358 netw);
359 errors++;
360 }
361
362 if ((ssid->group_cipher & WPA_CIPHER_CCMP) &&
363 !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
364 !(ssid->pairwise_cipher & WPA_CIPHER_NONE)) {
365 /* Group cipher cannot be stronger than the pairwise cipher. */
366 wpa_printf(MSG_DEBUG, "Removed CCMP from group cipher "
367 "list since it was not allowed for pairwise "
368 "cipher for network '" TSTR "'.", netw);
369 ssid->group_cipher &= ~WPA_CIPHER_CCMP;
370 }
371
372 if (errors) {
373 wpa_config_free_ssid(ssid);
374 ssid = NULL;
375 }
376
377 return ssid;
378 }
379
380
wpa_config_read_networks(struct wpa_config * config,HKEY hk)381 static int wpa_config_read_networks(struct wpa_config *config, HKEY hk)
382 {
383 HKEY nhk;
384 struct wpa_ssid *ssid, *tail = NULL, *head = NULL;
385 int errors = 0;
386 LONG ret;
387 DWORD i;
388
389 ret = RegOpenKeyEx(hk, TEXT("networks"), 0, KEY_ENUMERATE_SUB_KEYS,
390 &nhk);
391 if (ret != ERROR_SUCCESS) {
392 wpa_printf(MSG_ERROR, "Could not open wpa_supplicant networks "
393 "registry key");
394 return -1;
395 }
396
397 for (i = 0; ; i++) {
398 TCHAR name[255];
399 DWORD namelen;
400
401 namelen = 255;
402 ret = RegEnumKeyEx(nhk, i, name, &namelen, NULL, NULL, NULL,
403 NULL);
404
405 if (ret == ERROR_NO_MORE_ITEMS)
406 break;
407
408 if (ret != ERROR_SUCCESS) {
409 wpa_printf(MSG_DEBUG, "RegEnumKeyEx failed: 0x%x",
410 (unsigned int) ret);
411 break;
412 }
413
414 if (namelen >= 255)
415 namelen = 255 - 1;
416 name[namelen] = '\0';
417
418 ssid = wpa_config_read_network(nhk, name, i);
419 if (ssid == NULL) {
420 wpa_printf(MSG_ERROR, "Failed to parse network "
421 "profile '%s'.", name);
422 errors++;
423 continue;
424 }
425 if (head == NULL) {
426 head = tail = ssid;
427 } else {
428 tail->next = ssid;
429 tail = ssid;
430 }
431 if (wpa_config_add_prio_network(config, ssid)) {
432 wpa_printf(MSG_ERROR, "Failed to add network profile "
433 "'%s' to priority list.", name);
434 errors++;
435 continue;
436 }
437 }
438
439 RegCloseKey(nhk);
440
441 config->ssid = head;
442
443 return errors ? -1 : 0;
444 }
445
446
wpa_config_read(const char * name)447 struct wpa_config * wpa_config_read(const char *name)
448 {
449 TCHAR buf[256];
450 int errors = 0;
451 struct wpa_config *config;
452 HKEY hk;
453 LONG ret;
454
455 config = wpa_config_alloc_empty(NULL, NULL);
456 if (config == NULL)
457 return NULL;
458 wpa_printf(MSG_DEBUG, "Reading configuration profile '%s'", name);
459
460 #ifdef UNICODE
461 _snwprintf(buf, 256, WPA_KEY_PREFIX TEXT("\\configs\\%S"), name);
462 #else /* UNICODE */
463 os_snprintf(buf, 256, WPA_KEY_PREFIX TEXT("\\configs\\%s"), name);
464 #endif /* UNICODE */
465
466 ret = RegOpenKeyEx(WPA_KEY_ROOT, buf, 0, KEY_QUERY_VALUE, &hk);
467 if (ret != ERROR_SUCCESS) {
468 wpa_printf(MSG_ERROR, "Could not open wpa_supplicant "
469 "configuration registry HKLM\\" TSTR, buf);
470 os_free(config);
471 return NULL;
472 }
473
474 if (wpa_config_read_global(config, hk))
475 errors++;
476
477 if (wpa_config_read_networks(config, hk))
478 errors++;
479
480 if (wpa_config_read_blobs(config, hk))
481 errors++;
482
483 wpa_config_debug_dump_networks(config);
484
485 RegCloseKey(hk);
486
487 if (errors) {
488 wpa_config_free(config);
489 config = NULL;
490 }
491
492 return config;
493 }
494
495
wpa_config_write_reg_dword(HKEY hk,const TCHAR * name,int val,int def)496 static int wpa_config_write_reg_dword(HKEY hk, const TCHAR *name, int val,
497 int def)
498 {
499 LONG ret;
500 DWORD _val = val;
501
502 if (val == def) {
503 RegDeleteValue(hk, name);
504 return 0;
505 }
506
507 ret = RegSetValueEx(hk, name, 0, REG_DWORD, (LPBYTE) &_val,
508 sizeof(_val));
509 if (ret != ERROR_SUCCESS) {
510 wpa_printf(MSG_ERROR, "WINREG: Failed to set %s=%d: error %d",
511 name, val, (int) GetLastError());
512 return -1;
513 }
514
515 return 0;
516 }
517
518
wpa_config_write_reg_string(HKEY hk,const char * name,const char * val)519 static int wpa_config_write_reg_string(HKEY hk, const char *name,
520 const char *val)
521 {
522 LONG ret;
523 TCHAR *_name, *_val;
524
525 _name = wpa_strdup_tchar(name);
526 if (_name == NULL)
527 return -1;
528
529 if (val == NULL) {
530 RegDeleteValue(hk, _name);
531 os_free(_name);
532 return 0;
533 }
534
535 _val = wpa_strdup_tchar(val);
536 if (_val == NULL) {
537 os_free(_name);
538 return -1;
539 }
540 ret = RegSetValueEx(hk, _name, 0, REG_SZ, (BYTE *) _val,
541 (os_strlen(val) + 1) * sizeof(TCHAR));
542 if (ret != ERROR_SUCCESS) {
543 wpa_printf(MSG_ERROR, "WINREG: Failed to set %s='%s': "
544 "error %d", name, val, (int) GetLastError());
545 os_free(_name);
546 os_free(_val);
547 return -1;
548 }
549
550 os_free(_name);
551 os_free(_val);
552 return 0;
553 }
554
555
wpa_config_write_global(struct wpa_config * config,HKEY hk)556 static int wpa_config_write_global(struct wpa_config *config, HKEY hk)
557 {
558 #ifdef CONFIG_CTRL_IFACE
559 wpa_config_write_reg_string(hk, "ctrl_interface",
560 config->ctrl_interface);
561 #endif /* CONFIG_CTRL_IFACE */
562
563 wpa_config_write_reg_dword(hk, TEXT("eapol_version"),
564 config->eapol_version,
565 DEFAULT_EAPOL_VERSION);
566 wpa_config_write_reg_dword(hk, TEXT("ap_scan"), config->ap_scan,
567 DEFAULT_AP_SCAN);
568 wpa_config_write_reg_dword(hk, TEXT("fast_reauth"),
569 config->fast_reauth, DEFAULT_FAST_REAUTH);
570 wpa_config_write_reg_dword(hk, TEXT("dot11RSNAConfigPMKLifetime"),
571 config->dot11RSNAConfigPMKLifetime, 0);
572 wpa_config_write_reg_dword(hk,
573 TEXT("dot11RSNAConfigPMKReauthThreshold"),
574 config->dot11RSNAConfigPMKReauthThreshold,
575 0);
576 wpa_config_write_reg_dword(hk, TEXT("dot11RSNAConfigSATimeout"),
577 config->dot11RSNAConfigSATimeout, 0);
578 wpa_config_write_reg_dword(hk, TEXT("update_config"),
579 config->update_config,
580 0);
581 #ifdef CONFIG_WPS
582 if (!is_nil_uuid(config->uuid)) {
583 char buf[40];
584 uuid_bin2str(config->uuid, buf, sizeof(buf));
585 wpa_config_write_reg_string(hk, "uuid", buf);
586 }
587 wpa_config_write_reg_string(hk, "device_name", config->device_name);
588 wpa_config_write_reg_string(hk, "manufacturer", config->manufacturer);
589 wpa_config_write_reg_string(hk, "model_name", config->model_name);
590 wpa_config_write_reg_string(hk, "model_number", config->model_number);
591 wpa_config_write_reg_string(hk, "serial_number",
592 config->serial_number);
593 {
594 char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
595 buf = wps_dev_type_bin2str(config->device_type,
596 _buf, sizeof(_buf));
597 wpa_config_write_reg_string(hk, "device_type", buf);
598 }
599 wpa_config_write_reg_string(hk, "config_methods",
600 config->config_methods);
601 if (WPA_GET_BE32(config->os_version)) {
602 char vbuf[10];
603 os_snprintf(vbuf, sizeof(vbuf), "%08x",
604 WPA_GET_BE32(config->os_version));
605 wpa_config_write_reg_string(hk, "os_version", vbuf);
606 }
607 wpa_config_write_reg_dword(hk, TEXT("wps_cred_processing"),
608 config->wps_cred_processing, 0);
609 #endif /* CONFIG_WPS */
610 #ifdef CONFIG_P2P
611 wpa_config_write_reg_string(hk, "p2p_ssid_postfix",
612 config->p2p_ssid_postfix);
613 wpa_config_write_reg_dword(hk, TEXT("p2p_group_idle"),
614 config->p2p_group_idle, 0);
615 #endif /* CONFIG_P2P */
616
617 wpa_config_write_reg_dword(hk, TEXT("bss_max_count"),
618 config->bss_max_count,
619 DEFAULT_BSS_MAX_COUNT);
620 wpa_config_write_reg_dword(hk, TEXT("filter_ssids"),
621 config->filter_ssids, 0);
622 wpa_config_write_reg_dword(hk, TEXT("max_num_sta"),
623 config->max_num_sta, DEFAULT_MAX_NUM_STA);
624 wpa_config_write_reg_dword(hk, TEXT("disassoc_low_ack"),
625 config->disassoc_low_ack, 0);
626
627 return 0;
628 }
629
630
wpa_config_delete_subkeys(HKEY hk,const TCHAR * key)631 static int wpa_config_delete_subkeys(HKEY hk, const TCHAR *key)
632 {
633 HKEY nhk;
634 int i, errors = 0;
635 LONG ret;
636
637 ret = RegOpenKeyEx(hk, key, 0, KEY_ENUMERATE_SUB_KEYS | DELETE, &nhk);
638 if (ret != ERROR_SUCCESS) {
639 wpa_printf(MSG_DEBUG, "WINREG: Could not open key '" TSTR
640 "' for subkey deletion: error 0x%x (%d)", key,
641 (unsigned int) ret, (int) GetLastError());
642 return 0;
643 }
644
645 for (i = 0; ; i++) {
646 TCHAR name[255];
647 DWORD namelen;
648
649 namelen = 255;
650 ret = RegEnumKeyEx(nhk, i, name, &namelen, NULL, NULL, NULL,
651 NULL);
652
653 if (ret == ERROR_NO_MORE_ITEMS)
654 break;
655
656 if (ret != ERROR_SUCCESS) {
657 wpa_printf(MSG_DEBUG, "RegEnumKeyEx failed: 0x%x (%d)",
658 (unsigned int) ret, (int) GetLastError());
659 break;
660 }
661
662 if (namelen >= 255)
663 namelen = 255 - 1;
664 name[namelen] = TEXT('\0');
665
666 ret = RegDeleteKey(nhk, name);
667 if (ret != ERROR_SUCCESS) {
668 wpa_printf(MSG_DEBUG, "RegDeleteKey failed: 0x%x (%d)",
669 (unsigned int) ret, (int) GetLastError());
670 errors++;
671 }
672 }
673
674 RegCloseKey(nhk);
675
676 return errors ? -1 : 0;
677 }
678
679
write_str(HKEY hk,const char * field,struct wpa_ssid * ssid)680 static void write_str(HKEY hk, const char *field, struct wpa_ssid *ssid)
681 {
682 char *value = wpa_config_get(ssid, field);
683 if (value == NULL)
684 return;
685 wpa_config_write_reg_string(hk, field, value);
686 os_free(value);
687 }
688
689
write_int(HKEY hk,const char * field,int value,int def)690 static void write_int(HKEY hk, const char *field, int value, int def)
691 {
692 char val[20];
693 if (value == def)
694 return;
695 os_snprintf(val, sizeof(val), "%d", value);
696 wpa_config_write_reg_string(hk, field, val);
697 }
698
699
write_bssid(HKEY hk,struct wpa_ssid * ssid)700 static void write_bssid(HKEY hk, struct wpa_ssid *ssid)
701 {
702 char *value = wpa_config_get(ssid, "bssid");
703 if (value == NULL)
704 return;
705 wpa_config_write_reg_string(hk, "bssid", value);
706 os_free(value);
707 }
708
709
write_psk(HKEY hk,struct wpa_ssid * ssid)710 static void write_psk(HKEY hk, struct wpa_ssid *ssid)
711 {
712 char *value = wpa_config_get(ssid, "psk");
713 if (value == NULL)
714 return;
715 wpa_config_write_reg_string(hk, "psk", value);
716 os_free(value);
717 }
718
719
write_proto(HKEY hk,struct wpa_ssid * ssid)720 static void write_proto(HKEY hk, struct wpa_ssid *ssid)
721 {
722 char *value;
723
724 if (ssid->proto == DEFAULT_PROTO)
725 return;
726
727 value = wpa_config_get(ssid, "proto");
728 if (value == NULL)
729 return;
730 if (value[0])
731 wpa_config_write_reg_string(hk, "proto", value);
732 os_free(value);
733 }
734
735
write_key_mgmt(HKEY hk,struct wpa_ssid * ssid)736 static void write_key_mgmt(HKEY hk, struct wpa_ssid *ssid)
737 {
738 char *value;
739
740 if (ssid->key_mgmt == DEFAULT_KEY_MGMT)
741 return;
742
743 value = wpa_config_get(ssid, "key_mgmt");
744 if (value == NULL)
745 return;
746 if (value[0])
747 wpa_config_write_reg_string(hk, "key_mgmt", value);
748 os_free(value);
749 }
750
751
write_pairwise(HKEY hk,struct wpa_ssid * ssid)752 static void write_pairwise(HKEY hk, struct wpa_ssid *ssid)
753 {
754 char *value;
755
756 if (ssid->pairwise_cipher == DEFAULT_PAIRWISE)
757 return;
758
759 value = wpa_config_get(ssid, "pairwise");
760 if (value == NULL)
761 return;
762 if (value[0])
763 wpa_config_write_reg_string(hk, "pairwise", value);
764 os_free(value);
765 }
766
767
write_group(HKEY hk,struct wpa_ssid * ssid)768 static void write_group(HKEY hk, struct wpa_ssid *ssid)
769 {
770 char *value;
771
772 if (ssid->group_cipher == DEFAULT_GROUP)
773 return;
774
775 value = wpa_config_get(ssid, "group");
776 if (value == NULL)
777 return;
778 if (value[0])
779 wpa_config_write_reg_string(hk, "group", value);
780 os_free(value);
781 }
782
783
write_auth_alg(HKEY hk,struct wpa_ssid * ssid)784 static void write_auth_alg(HKEY hk, struct wpa_ssid *ssid)
785 {
786 char *value;
787
788 if (ssid->auth_alg == 0)
789 return;
790
791 value = wpa_config_get(ssid, "auth_alg");
792 if (value == NULL)
793 return;
794 if (value[0])
795 wpa_config_write_reg_string(hk, "auth_alg", value);
796 os_free(value);
797 }
798
799
800 #ifdef IEEE8021X_EAPOL
write_eap(HKEY hk,struct wpa_ssid * ssid)801 static void write_eap(HKEY hk, struct wpa_ssid *ssid)
802 {
803 char *value;
804
805 value = wpa_config_get(ssid, "eap");
806 if (value == NULL)
807 return;
808
809 if (value[0])
810 wpa_config_write_reg_string(hk, "eap", value);
811 os_free(value);
812 }
813 #endif /* IEEE8021X_EAPOL */
814
815
write_wep_key(HKEY hk,int idx,struct wpa_ssid * ssid)816 static void write_wep_key(HKEY hk, int idx, struct wpa_ssid *ssid)
817 {
818 char field[20], *value;
819
820 os_snprintf(field, sizeof(field), "wep_key%d", idx);
821 value = wpa_config_get(ssid, field);
822 if (value) {
823 wpa_config_write_reg_string(hk, field, value);
824 os_free(value);
825 }
826 }
827
828
wpa_config_write_network(HKEY hk,struct wpa_ssid * ssid,int id)829 static int wpa_config_write_network(HKEY hk, struct wpa_ssid *ssid, int id)
830 {
831 int i, errors = 0;
832 HKEY nhk, netw;
833 LONG ret;
834 TCHAR name[5];
835
836 ret = RegOpenKeyEx(hk, TEXT("networks"), 0, KEY_CREATE_SUB_KEY, &nhk);
837 if (ret != ERROR_SUCCESS) {
838 wpa_printf(MSG_DEBUG, "WINREG: Could not open networks key "
839 "for subkey addition: error 0x%x (%d)",
840 (unsigned int) ret, (int) GetLastError());
841 return 0;
842 }
843
844 #ifdef UNICODE
845 wsprintf(name, L"%04d", id);
846 #else /* UNICODE */
847 os_snprintf(name, sizeof(name), "%04d", id);
848 #endif /* UNICODE */
849 ret = RegCreateKeyEx(nhk, name, 0, NULL, 0, KEY_WRITE, NULL, &netw,
850 NULL);
851 RegCloseKey(nhk);
852 if (ret != ERROR_SUCCESS) {
853 wpa_printf(MSG_DEBUG, "WINREG: Could not add network key '%s':"
854 " error 0x%x (%d)",
855 name, (unsigned int) ret, (int) GetLastError());
856 return -1;
857 }
858
859 #define STR(t) write_str(netw, #t, ssid)
860 #define INT(t) write_int(netw, #t, ssid->t, 0)
861 #define INTe(t) write_int(netw, #t, ssid->eap.t, 0)
862 #define INT_DEF(t, def) write_int(netw, #t, ssid->t, def)
863 #define INT_DEFe(t, def) write_int(netw, #t, ssid->eap.t, def)
864
865 STR(ssid);
866 INT(scan_ssid);
867 write_bssid(netw, ssid);
868 write_psk(netw, ssid);
869 write_proto(netw, ssid);
870 write_key_mgmt(netw, ssid);
871 write_pairwise(netw, ssid);
872 write_group(netw, ssid);
873 write_auth_alg(netw, ssid);
874 #ifdef IEEE8021X_EAPOL
875 write_eap(netw, ssid);
876 STR(identity);
877 STR(anonymous_identity);
878 STR(password);
879 STR(ca_cert);
880 STR(ca_path);
881 STR(client_cert);
882 STR(private_key);
883 STR(private_key_passwd);
884 STR(dh_file);
885 STR(subject_match);
886 STR(altsubject_match);
887 STR(ca_cert2);
888 STR(ca_path2);
889 STR(client_cert2);
890 STR(private_key2);
891 STR(private_key2_passwd);
892 STR(dh_file2);
893 STR(subject_match2);
894 STR(altsubject_match2);
895 STR(phase1);
896 STR(phase2);
897 STR(pcsc);
898 STR(pin);
899 STR(engine_id);
900 STR(key_id);
901 STR(cert_id);
902 STR(ca_cert_id);
903 STR(key2_id);
904 STR(pin2);
905 STR(engine2_id);
906 STR(cert2_id);
907 STR(ca_cert2_id);
908 INTe(engine);
909 INTe(engine2);
910 INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS);
911 #endif /* IEEE8021X_EAPOL */
912 for (i = 0; i < 4; i++)
913 write_wep_key(netw, i, ssid);
914 INT(wep_tx_keyidx);
915 INT(priority);
916 #ifdef IEEE8021X_EAPOL
917 INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND);
918 STR(pac_file);
919 INT_DEFe(fragment_size, DEFAULT_FRAGMENT_SIZE);
920 #endif /* IEEE8021X_EAPOL */
921 INT(mode);
922 INT(proactive_key_caching);
923 INT(disabled);
924 INT(peerkey);
925 #ifdef CONFIG_IEEE80211W
926 INT(ieee80211w);
927 #endif /* CONFIG_IEEE80211W */
928 STR(id_str);
929
930 #undef STR
931 #undef INT
932 #undef INT_DEF
933
934 RegCloseKey(netw);
935
936 return errors ? -1 : 0;
937 }
938
939
wpa_config_write_blob(HKEY hk,struct wpa_config_blob * blob)940 static int wpa_config_write_blob(HKEY hk, struct wpa_config_blob *blob)
941 {
942 HKEY bhk;
943 LONG ret;
944 TCHAR *name;
945
946 ret = RegCreateKeyEx(hk, TEXT("blobs"), 0, NULL, 0, KEY_WRITE, NULL,
947 &bhk, NULL);
948 if (ret != ERROR_SUCCESS) {
949 wpa_printf(MSG_DEBUG, "WINREG: Could not add blobs key: "
950 "error 0x%x (%d)",
951 (unsigned int) ret, (int) GetLastError());
952 return -1;
953 }
954
955 name = wpa_strdup_tchar(blob->name);
956 ret = RegSetValueEx(bhk, name, 0, REG_BINARY, blob->data,
957 blob->len);
958 if (ret != ERROR_SUCCESS) {
959 wpa_printf(MSG_ERROR, "WINREG: Failed to set blob %s': "
960 "error 0x%x (%d)", blob->name, (unsigned int) ret,
961 (int) GetLastError());
962 RegCloseKey(bhk);
963 os_free(name);
964 return -1;
965 }
966 os_free(name);
967
968 RegCloseKey(bhk);
969
970 return 0;
971 }
972
973
wpa_config_write(const char * name,struct wpa_config * config)974 int wpa_config_write(const char *name, struct wpa_config *config)
975 {
976 TCHAR buf[256];
977 HKEY hk;
978 LONG ret;
979 int errors = 0;
980 struct wpa_ssid *ssid;
981 struct wpa_config_blob *blob;
982 int id;
983
984 wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name);
985
986 #ifdef UNICODE
987 _snwprintf(buf, 256, WPA_KEY_PREFIX TEXT("\\configs\\%S"), name);
988 #else /* UNICODE */
989 os_snprintf(buf, 256, WPA_KEY_PREFIX TEXT("\\configs\\%s"), name);
990 #endif /* UNICODE */
991
992 ret = RegOpenKeyEx(WPA_KEY_ROOT, buf, 0, KEY_SET_VALUE | DELETE, &hk);
993 if (ret != ERROR_SUCCESS) {
994 wpa_printf(MSG_ERROR, "Could not open wpa_supplicant "
995 "configuration registry %s: error %d", buf,
996 (int) GetLastError());
997 return -1;
998 }
999
1000 if (wpa_config_write_global(config, hk)) {
1001 wpa_printf(MSG_ERROR, "Failed to write global configuration "
1002 "data");
1003 errors++;
1004 }
1005
1006 wpa_config_delete_subkeys(hk, TEXT("networks"));
1007 for (ssid = config->ssid, id = 0; ssid; ssid = ssid->next, id++) {
1008 if (ssid->key_mgmt == WPA_KEY_MGMT_WPS)
1009 continue; /* do not save temporary WPS networks */
1010 if (wpa_config_write_network(hk, ssid, id))
1011 errors++;
1012 }
1013
1014 RegDeleteKey(hk, TEXT("blobs"));
1015 for (blob = config->blobs; blob; blob = blob->next) {
1016 if (wpa_config_write_blob(hk, blob))
1017 errors++;
1018 }
1019
1020 RegCloseKey(hk);
1021
1022 wpa_printf(MSG_DEBUG, "Configuration '%s' written %ssuccessfully",
1023 name, errors ? "un" : "");
1024 return errors ? -1 : 0;
1025 }
1026