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Interworking: Use 3gppnetwork.org for matching home SP for SIM/USIM
[thirdparty/hostap.git] / wpa_supplicant / config_file.c
CommitLineData
6fc6879b
JM		 1/*
2 * WPA Supplicant / Configuration backend: text file
56586197 3 * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
6fc6879b 4 *
0f3d578e
JM		 5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
6fc6879b
JM		 7 *
8 * This file implements a configuration backend for text files. All the
9 * configuration information is stored in a text file that uses a format
10 * described in the sample configuration file, wpa_supplicant.conf.
11 */
12
13#include "includes.h"
14
15#include "common.h"
16#include "config.h"
17#include "base64.h"
f855f923 18#include "uuid.h"
6fc6879b
JM		 19
20
21/**
22 * wpa_config_get_line - Read the next configuration file line
23 * @s: Buffer for the line
24 * @size: The buffer length
25 * @stream: File stream to read from
26 * @line: Pointer to a variable storing the file line number
27 * @_pos: Buffer for the pointer to the beginning of data on the text line or
28 * %NULL if not needed (returned value used instead)
29 * Returns: Pointer to the beginning of data on the text line or %NULL if no
30 * more text lines are available.
31 *
32 * This function reads the next non-empty line from the configuration file and
33 * removes comments. The returned string is guaranteed to be null-terminated.
34 */
35static char * wpa_config_get_line(char *s, int size, FILE *stream, int *line,
36 char **_pos)
37{
38 char *pos, *end, *sstart;
39
40 while (fgets(s, size, stream)) {
41 (*line)++;
42 s[size - 1] = '\0';
43 pos = s;
44
45 /* Skip white space from the beginning of line. */
46 while (*pos == ' ' || *pos == '\t' || *pos == '\r')
47 pos++;
48
49 /* Skip comment lines and empty lines */
50 if (*pos == '#' || *pos == '\n' || *pos == '\0')
51 continue;
52
53 /*
54 * Remove # comments unless they are within a double quoted
55 * string.
56 */
57 sstart = os_strchr(pos, '"');
58 if (sstart)
59 sstart = os_strrchr(sstart + 1, '"');
60 if (!sstart)
61 sstart = pos;
62 end = os_strchr(sstart, '#');
63 if (end)
64 *end-- = '\0';
65 else
66 end = pos + os_strlen(pos) - 1;
67
68 /* Remove trailing white space. */
69 while (end > pos &&
70 (*end == '\n' || *end == ' ' || *end == '\t' ||
71 *end == '\r'))
72 *end-- = '\0';
73
74 if (*pos == '\0')
75 continue;
76
77 if (_pos)
78 *_pos = pos;
79 return pos;
80 }
81
82 if (_pos)
83 *_pos = NULL;
84 return NULL;
85}
86
87
88static int wpa_config_validate_network(struct wpa_ssid *ssid, int line)
89{
90 int errors = 0;
91
92 if (ssid->passphrase) {
93 if (ssid->psk_set) {
94 wpa_printf(MSG_ERROR, "Line %d: both PSK and "
95 "passphrase configured.", line);
96 errors++;
97 }
98 wpa_config_update_psk(ssid);
99 }
100
0bf927a0 101 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set) {
6fc6879b
JM		 102 wpa_printf(MSG_ERROR, "Line %d: WPA-PSK accepted for key "
103 "management, but no PSK configured.", line);
104 errors++;
105 }
106
107 if ((ssid->group_cipher & WPA_CIPHER_CCMP) &&
108 !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
109 !(ssid->pairwise_cipher & WPA_CIPHER_NONE)) {
110 /* Group cipher cannot be stronger than the pairwise cipher. */
111 wpa_printf(MSG_DEBUG, "Line %d: removed CCMP from group cipher"
112 " list since it was not allowed for pairwise "
113 "cipher", line);
114 ssid->group_cipher &= ~WPA_CIPHER_CCMP;
115 }
116
117 return errors;
118}
119
120
121static struct wpa_ssid * wpa_config_read_network(FILE *f, int *line, int id)
122{
123 struct wpa_ssid *ssid;
124 int errors = 0, end = 0;
125 char buf[256], *pos, *pos2;
126
127 wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new network block",
128 *line);
129 ssid = os_zalloc(sizeof(*ssid));
130 if (ssid == NULL)
131 return NULL;
132 ssid->id = id;
133
134 wpa_config_set_network_defaults(ssid);
135
136 while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
137 if (os_strcmp(pos, "}") == 0) {
138 end = 1;
139 break;
140 }
141
142 pos2 = os_strchr(pos, '=');
143 if (pos2 == NULL) {
144 wpa_printf(MSG_ERROR, "Line %d: Invalid SSID line "
145 "'%s'.", *line, pos);
146 errors++;
147 continue;
148 }
149
150 *pos2++ = '\0';
151 if (*pos2 == '"') {
152 if (os_strchr(pos2 + 1, '"') == NULL) {
153 wpa_printf(MSG_ERROR, "Line %d: invalid "
154 "quotation '%s'.", *line, pos2);
155 errors++;
156 continue;
157 }
158 }
159
160 if (wpa_config_set(ssid, pos, pos2, *line) < 0)
161 errors++;
162 }
163
164 if (!end) {
165 wpa_printf(MSG_ERROR, "Line %d: network block was not "
166 "terminated properly.", *line);
167 errors++;
168 }
169
170 errors += wpa_config_validate_network(ssid, *line);
171
172 if (errors) {
173 wpa_config_free_ssid(ssid);
174 ssid = NULL;
175 }
176
177 return ssid;
178}
179
180
181#ifndef CONFIG_NO_CONFIG_BLOBS
182static struct wpa_config_blob * wpa_config_read_blob(FILE *f, int *line,
183 const char *name)
184{
185 struct wpa_config_blob *blob;
186 char buf[256], *pos;
187 unsigned char *encoded = NULL, *nencoded;
188 int end = 0;
189 size_t encoded_len = 0, len;
190
191 wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new named blob '%s'",
192 *line, name);
193
194 while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
195 if (os_strcmp(pos, "}") == 0) {
196 end = 1;
197 break;
198 }
199
200 len = os_strlen(pos);
201 nencoded = os_realloc(encoded, encoded_len + len);
202 if (nencoded == NULL) {
203 wpa_printf(MSG_ERROR, "Line %d: not enough memory for "
204 "blob", *line);
205 os_free(encoded);
206 return NULL;
207 }
208 encoded = nencoded;
209 os_memcpy(encoded + encoded_len, pos, len);
210 encoded_len += len;
211 }
212
213 if (!end) {
214 wpa_printf(MSG_ERROR, "Line %d: blob was not terminated "
215 "properly", *line);
216 os_free(encoded);
217 return NULL;
218 }
219
220 blob = os_zalloc(sizeof(*blob));
221 if (blob == NULL) {
222 os_free(encoded);
223 return NULL;
224 }
225 blob->name = os_strdup(name);
226 blob->data = base64_decode(encoded, encoded_len, &blob->len);
227 os_free(encoded);
228
229 if (blob->name == NULL || blob->data == NULL) {
230 wpa_config_free_blob(blob);
231 return NULL;
232 }
233
234 return blob;
235}
236
237
238static int wpa_config_process_blob(struct wpa_config *config, FILE *f,
239 int *line, char *bname)
240{
241 char *name_end;
242 struct wpa_config_blob *blob;
243
244 name_end = os_strchr(bname, '=');
245 if (name_end == NULL) {
246 wpa_printf(MSG_ERROR, "Line %d: no blob name terminator",
247 *line);
248 return -1;
249 }
250 *name_end = '\0';
251
252 blob = wpa_config_read_blob(f, line, bname);
253 if (blob == NULL) {
254 wpa_printf(MSG_ERROR, "Line %d: failed to read blob %s",
255 *line, bname);
256 return -1;
257 }
258 wpa_config_set_blob(config, blob);
259 return 0;
260}
261#endif /* CONFIG_NO_CONFIG_BLOBS */
262
263
6fc6879b
JM		 264struct wpa_config * wpa_config_read(const char *name)
265{
266 FILE *f;
267 char buf[256], *pos;
268 int errors = 0, line = 0;
269 struct wpa_ssid *ssid, *tail = NULL, *head = NULL;
270 struct wpa_config *config;
271 int id = 0;
272
273 config = wpa_config_alloc_empty(NULL, NULL);
274 if (config == NULL)
275 return NULL;
276 wpa_printf(MSG_DEBUG, "Reading configuration file '%s'", name);
277 f = fopen(name, "r");
278 if (f == NULL) {
279 os_free(config);
280 return NULL;
281 }
282
283 while (wpa_config_get_line(buf, sizeof(buf), f, &line, &pos)) {
284 if (os_strcmp(pos, "network={") == 0) {
285 ssid = wpa_config_read_network(f, &line, id++);
286 if (ssid == NULL) {
287 wpa_printf(MSG_ERROR, "Line %d: failed to "
288 "parse network block.", line);
289 errors++;
290 continue;
291 }
292 if (head == NULL) {
293 head = tail = ssid;
294 } else {
295 tail->next = ssid;
296 tail = ssid;
297 }
298 if (wpa_config_add_prio_network(config, ssid)) {
299 wpa_printf(MSG_ERROR, "Line %d: failed to add "
300 "network block to priority list.",
301 line);
302 errors++;
303 continue;
304 }
305#ifndef CONFIG_NO_CONFIG_BLOBS
306 } else if (os_strncmp(pos, "blob-base64-", 12) == 0) {
307 if (wpa_config_process_blob(config, f, &line, pos + 12)
308 < 0) {
309 errors++;
310 continue;
311 }
312#endif /* CONFIG_NO_CONFIG_BLOBS */
313 } else if (wpa_config_process_global(config, pos, line) < 0) {
314 wpa_printf(MSG_ERROR, "Line %d: Invalid configuration "
315 "line '%s'.", line, pos);
316 errors++;
317 continue;
318 }
319 }
320
321 fclose(f);
322
323 config->ssid = head;
324 wpa_config_debug_dump_networks(config);
325
ae6e1bee 326#ifndef WPA_IGNORE_CONFIG_ERRORS
6fc6879b
JM		 327 if (errors) {
328 wpa_config_free(config);
329 config = NULL;
330 head = NULL;
331 }
ae6e1bee 332#endif /* WPA_IGNORE_CONFIG_ERRORS */
6fc6879b
JM		 333
334 return config;
335}
336
337
338#ifndef CONFIG_NO_CONFIG_WRITE
339
340static void write_str(FILE *f, const char *field, struct wpa_ssid *ssid)
341{
342 char *value = wpa_config_get(ssid, field);
343 if (value == NULL)
344 return;
345 fprintf(f, "\t%s=%s\n", field, value);
346 os_free(value);
347}
348
349
350static void write_int(FILE *f, const char *field, int value, int def)
351{
352 if (value == def)
353 return;
354 fprintf(f, "\t%s=%d\n", field, value);
355}
356
357
358static void write_bssid(FILE *f, struct wpa_ssid *ssid)
359{
360 char *value = wpa_config_get(ssid, "bssid");
361 if (value == NULL)
362 return;
363 fprintf(f, "\tbssid=%s\n", value);
364 os_free(value);
365}
366
367
368static void write_psk(FILE *f, struct wpa_ssid *ssid)
369{
370 char *value = wpa_config_get(ssid, "psk");
371 if (value == NULL)
372 return;
373 fprintf(f, "\tpsk=%s\n", value);
374 os_free(value);
375}
376
377
378static void write_proto(FILE *f, struct wpa_ssid *ssid)
379{
380 char *value;
381
382 if (ssid->proto == DEFAULT_PROTO)
383 return;
384
385 value = wpa_config_get(ssid, "proto");
386 if (value == NULL)
387 return;
388 if (value[0])
389 fprintf(f, "\tproto=%s\n", value);
390 os_free(value);
391}
392
393
394static void write_key_mgmt(FILE *f, struct wpa_ssid *ssid)
395{
396 char *value;
397
398 if (ssid->key_mgmt == DEFAULT_KEY_MGMT)
399 return;
400
401 value = wpa_config_get(ssid, "key_mgmt");
402 if (value == NULL)
403 return;
404 if (value[0])
405 fprintf(f, "\tkey_mgmt=%s\n", value);
406 os_free(value);
407}
408
409
410static void write_pairwise(FILE *f, struct wpa_ssid *ssid)
411{
412 char *value;
413
414 if (ssid->pairwise_cipher == DEFAULT_PAIRWISE)
415 return;
416
417 value = wpa_config_get(ssid, "pairwise");
418 if (value == NULL)
419 return;
420 if (value[0])
421 fprintf(f, "\tpairwise=%s\n", value);
422 os_free(value);
423}
424
425
426static void write_group(FILE *f, struct wpa_ssid *ssid)
427{
428 char *value;
429
430 if (ssid->group_cipher == DEFAULT_GROUP)
431 return;
432
433 value = wpa_config_get(ssid, "group");
434 if (value == NULL)
435 return;
436 if (value[0])
437 fprintf(f, "\tgroup=%s\n", value);
438 os_free(value);
439}
440
441
442static void write_auth_alg(FILE *f, struct wpa_ssid *ssid)
443{
444 char *value;
445
446 if (ssid->auth_alg == 0)
447 return;
448
449 value = wpa_config_get(ssid, "auth_alg");
450 if (value == NULL)
451 return;
452 if (value[0])
453 fprintf(f, "\tauth_alg=%s\n", value);
454 os_free(value);
455}
456
457
458#ifdef IEEE8021X_EAPOL
459static void write_eap(FILE *f, struct wpa_ssid *ssid)
460{
461 char *value;
462
463 value = wpa_config_get(ssid, "eap");
464 if (value == NULL)
465 return;
466
467 if (value[0])
468 fprintf(f, "\teap=%s\n", value);
469 os_free(value);
470}
471#endif /* IEEE8021X_EAPOL */
472
473
474static void write_wep_key(FILE *f, int idx, struct wpa_ssid *ssid)
475{
476 char field[20], *value;
477 int res;
478
479 res = os_snprintf(field, sizeof(field), "wep_key%d", idx);
480 if (res < 0 || (size_t) res >= sizeof(field))
481 return;
482 value = wpa_config_get(ssid, field);
483 if (value) {
484 fprintf(f, "\t%s=%s\n", field, value);
485 os_free(value);
486 }
487}
488
489
fbdcfd57
JM		 490#ifdef CONFIG_P2P
491static void write_p2p_client_list(FILE *f, struct wpa_ssid *ssid)
492{
493 char *value = wpa_config_get(ssid, "p2p_client_list");
494 if (value == NULL)
495 return;
496 fprintf(f, "\tp2p_client_list=%s\n", value);
497 os_free(value);
498}
499#endif /* CONFIG_P2P */
500
501
6fc6879b
JM		 502static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
503{
504 int i;
505
506#define STR(t) write_str(f, #t, ssid)
507#define INT(t) write_int(f, #t, ssid->t, 0)
508#define INTe(t) write_int(f, #t, ssid->eap.t, 0)
509#define INT_DEF(t, def) write_int(f, #t, ssid->t, def)
510#define INT_DEFe(t, def) write_int(f, #t, ssid->eap.t, def)
511
512 STR(ssid);
513 INT(scan_ssid);
514 write_bssid(f, ssid);
515 write_psk(f, ssid);
516 write_proto(f, ssid);
517 write_key_mgmt(f, ssid);
518 write_pairwise(f, ssid);
519 write_group(f, ssid);
520 write_auth_alg(f, ssid);
521#ifdef IEEE8021X_EAPOL
522 write_eap(f, ssid);
523 STR(identity);
524 STR(anonymous_identity);
525 STR(password);
526 STR(ca_cert);
527 STR(ca_path);
528 STR(client_cert);
529 STR(private_key);
530 STR(private_key_passwd);
531 STR(dh_file);
532 STR(subject_match);
533 STR(altsubject_match);
534 STR(ca_cert2);
535 STR(ca_path2);
536 STR(client_cert2);
537 STR(private_key2);
538 STR(private_key2_passwd);
539 STR(dh_file2);
540 STR(subject_match2);
541 STR(altsubject_match2);
542 STR(phase1);
543 STR(phase2);
544 STR(pcsc);
545 STR(pin);
546 STR(engine_id);
547 STR(key_id);
61ee0f71
DS		 548 STR(cert_id);
549 STR(ca_cert_id);
550 STR(key2_id);
98842d51
CL		 551 STR(pin2);
552 STR(engine2_id);
61ee0f71
DS		 553 STR(cert2_id);
554 STR(ca_cert2_id);
6fc6879b 555 INTe(engine);
98842d51 556 INTe(engine2);
6fc6879b
JM		 557 INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS);
558#endif /* IEEE8021X_EAPOL */
559 for (i = 0; i < 4; i++)
560 write_wep_key(f, i, ssid);
561 INT(wep_tx_keyidx);
562 INT(priority);
563#ifdef IEEE8021X_EAPOL
564 INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND);
565 STR(pac_file);
566 INT_DEFe(fragment_size, DEFAULT_FRAGMENT_SIZE);
567#endif /* IEEE8021X_EAPOL */
568 INT(mode);
569 INT(proactive_key_caching);
570 INT(disabled);
571 INT(peerkey);
572#ifdef CONFIG_IEEE80211W
573 INT(ieee80211w);
574#endif /* CONFIG_IEEE80211W */
575 STR(id_str);
fbdcfd57
JM		 576#ifdef CONFIG_P2P
577 write_p2p_client_list(f, ssid);
578#endif /* CONFIG_P2P */
6fc6879b
JM		 579
580#undef STR
581#undef INT
582#undef INT_DEF
583}
584
585
586#ifndef CONFIG_NO_CONFIG_BLOBS
587static int wpa_config_write_blob(FILE *f, struct wpa_config_blob *blob)
588{
589 unsigned char *encoded;
590
591 encoded = base64_encode(blob->data, blob->len, NULL);
592 if (encoded == NULL)
593 return -1;
594
595 fprintf(f, "\nblob-base64-%s={\n%s}\n", blob->name, encoded);
596 os_free(encoded);
597 return 0;
598}
599#endif /* CONFIG_NO_CONFIG_BLOBS */
600
601
602static void wpa_config_write_global(FILE *f, struct wpa_config *config)
603{
604#ifdef CONFIG_CTRL_IFACE
605 if (config->ctrl_interface)
606 fprintf(f, "ctrl_interface=%s\n", config->ctrl_interface);
607 if (config->ctrl_interface_group)
608 fprintf(f, "ctrl_interface_group=%s\n",
609 config->ctrl_interface_group);
610#endif /* CONFIG_CTRL_IFACE */
611 if (config->eapol_version != DEFAULT_EAPOL_VERSION)
612 fprintf(f, "eapol_version=%d\n", config->eapol_version);
613 if (config->ap_scan != DEFAULT_AP_SCAN)
614 fprintf(f, "ap_scan=%d\n", config->ap_scan);
615 if (config->fast_reauth != DEFAULT_FAST_REAUTH)
616 fprintf(f, "fast_reauth=%d\n", config->fast_reauth);
6fc6879b
JM		 617 if (config->opensc_engine_path)
618 fprintf(f, "opensc_engine_path=%s\n",
619 config->opensc_engine_path);
620 if (config->pkcs11_engine_path)
621 fprintf(f, "pkcs11_engine_path=%s\n",
622 config->pkcs11_engine_path);
623 if (config->pkcs11_module_path)
624 fprintf(f, "pkcs11_module_path=%s\n",
625 config->pkcs11_module_path);
6fc6879b
JM		 626 if (config->driver_param)
627 fprintf(f, "driver_param=%s\n", config->driver_param);
628 if (config->dot11RSNAConfigPMKLifetime)
629 fprintf(f, "dot11RSNAConfigPMKLifetime=%d\n",
630 config->dot11RSNAConfigPMKLifetime);
631 if (config->dot11RSNAConfigPMKReauthThreshold)
632 fprintf(f, "dot11RSNAConfigPMKReauthThreshold=%d\n",
633 config->dot11RSNAConfigPMKReauthThreshold);
634 if (config->dot11RSNAConfigSATimeout)
635 fprintf(f, "dot11RSNAConfigSATimeout=%d\n",
636 config->dot11RSNAConfigSATimeout);
637 if (config->update_config)
638 fprintf(f, "update_config=%d\n", config->update_config);
f855f923 639#ifdef CONFIG_WPS
9be09636 640 if (!is_nil_uuid(config->uuid)) {
f855f923
JM		 641 char buf[40];
642 uuid_bin2str(config->uuid, buf, sizeof(buf));
643 fprintf(f, "uuid=%s\n", buf);
644 }
3c0b7aa4
JM		 645 if (config->device_name)
646 fprintf(f, "device_name=%s\n", config->device_name);
647 if (config->manufacturer)
648 fprintf(f, "manufacturer=%s\n", config->manufacturer);
649 if (config->model_name)
650 fprintf(f, "model_name=%s\n", config->model_name);
651 if (config->model_number)
652 fprintf(f, "model_number=%s\n", config->model_number);
653 if (config->serial_number)
654 fprintf(f, "serial_number=%s\n", config->serial_number);
2f646b6e
JB		 655 {
656 char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
657 buf = wps_dev_type_bin2str(config->device_type,
658 _buf, sizeof(_buf));
a769b094
JM		 659 if (os_strcmp(buf, "0-00000000-0") != 0)
660 fprintf(f, "device_type=%s\n", buf);
2f646b6e 661 }
9be09636 662 if (WPA_GET_BE32(config->os_version))
3c0b7aa4
JM		 663 fprintf(f, "os_version=%08x\n",
664 WPA_GET_BE32(config->os_version));
c0e4dd9e
JM		 665 if (config->config_methods)
666 fprintf(f, "config_methods=%s\n", config->config_methods);
47662164
JM		 667 if (config->wps_cred_processing)
668 fprintf(f, "wps_cred_processing=%d\n",
669 config->wps_cred_processing);
f855f923 670#endif /* CONFIG_WPS */
e3768e7c
JM		 671#ifdef CONFIG_P2P
672 if (config->p2p_listen_reg_class)
673 fprintf(f, "p2p_listen_reg_class=%u\n",
674 config->p2p_listen_reg_class);
675 if (config->p2p_listen_channel)
676 fprintf(f, "p2p_listen_channel=%u\n",
677 config->p2p_listen_channel);
678 if (config->p2p_oper_reg_class)
679 fprintf(f, "p2p_oper_reg_class=%u\n",
680 config->p2p_oper_reg_class);
681 if (config->p2p_oper_channel)
682 fprintf(f, "p2p_oper_channel=%u\n", config->p2p_oper_channel);
683 if (config->p2p_go_intent != DEFAULT_P2P_GO_INTENT)
684 fprintf(f, "p2p_go_intent=%u\n", config->p2p_go_intent);
685 if (config->p2p_ssid_postfix)
686 fprintf(f, "p2p_ssid_postfix=%s\n", config->p2p_ssid_postfix);
687 if (config->persistent_reconnect)
688 fprintf(f, "persistent_reconnect=%u\n",
689 config->persistent_reconnect);
0f66abd2
SS		 690 if (config->p2p_intra_bss != DEFAULT_P2P_INTRA_BSS)
691 fprintf(f, "p2p_intra_bss=%u\n", config->p2p_intra_bss);
3071e181
JM		 692 if (config->p2p_group_idle)
693 fprintf(f, "p2p_group_idle=%u\n", config->p2p_group_idle);
e3768e7c 694#endif /* CONFIG_P2P */
315ce40a 695 if (config->country[0] && config->country[1]) {
6d158490 696 fprintf(f, "country=%c%c\n",
315ce40a 697 config->country[0], config->country[1]);
6d158490 698 }
c9c38b09
JM		 699 if (config->bss_max_count != DEFAULT_BSS_MAX_COUNT)
700 fprintf(f, "bss_max_count=%u\n", config->bss_max_count);
78633c37
SL		 701 if (config->bss_expiration_age != DEFAULT_BSS_EXPIRATION_AGE)
702 fprintf(f, "bss_expiration_age=%u\n",
703 config->bss_expiration_age);
704 if (config->bss_expiration_scan_count !=
705 DEFAULT_BSS_EXPIRATION_SCAN_COUNT)
706 fprintf(f, "bss_expiration_scan_count=%u\n",
707 config->bss_expiration_scan_count);
3812464c
JM		 708 if (config->filter_ssids)
709 fprintf(f, "filter_ssids=%d\n", config->filter_ssids);
dae608d5
JM		 710 if (config->max_num_sta != DEFAULT_MAX_NUM_STA)
711 fprintf(f, "max_num_sta=%u\n", config->max_num_sta);
0d7e5a3a
JB		 712 if (config->disassoc_low_ack)
713 fprintf(f, "disassoc_low_ack=%u\n", config->disassoc_low_ack);
67e1b984 714#ifdef CONFIG_INTERWORKING
73c41a8f
JM		 715 if (config->home_realm)
716 fprintf(f, "home_realm=%s\n", config->home_realm);
67e1b984
JM		 717 if (config->home_username)
718 fprintf(f, "home_username=%s\n", config->home_username);
719 if (config->home_password)
720 fprintf(f, "home_password=%s\n", config->home_password);
721 if (config->home_ca_cert)
722 fprintf(f, "home_ca_cert=%s\n", config->home_ca_cert);
3b840b67
JM		 723 if (config->home_imsi)
724 fprintf(f, "home_imsi=%s\n", config->home_imsi);
725 if (config->home_milenage)
726 fprintf(f, "home_milenage=%s\n", config->home_milenage);
46ee0427
JM		 727 if (config->interworking)
728 fprintf(f, "interworking=%u\n", config->interworking);
729 if (!is_zero_ether_addr(config->hessid))
730 fprintf(f, "hessid=" MACSTR "\n", MAC2STR(config->hessid));
11540c0b
JM		 731 if (config->access_network_type != DEFAULT_ACCESS_NETWORK_TYPE)
732 fprintf(f, "access_network_type=%d\n",
733 config->access_network_type);
67e1b984 734#endif /* CONFIG_INTERWORKING */
6fc6879b
JM		 735}
736
737#endif /* CONFIG_NO_CONFIG_WRITE */
738
739
740int wpa_config_write(const char *name, struct wpa_config *config)
741{
742#ifndef CONFIG_NO_CONFIG_WRITE
743 FILE *f;
744 struct wpa_ssid *ssid;
745#ifndef CONFIG_NO_CONFIG_BLOBS
746 struct wpa_config_blob *blob;
747#endif /* CONFIG_NO_CONFIG_BLOBS */
748 int ret = 0;
749
750 wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name);
751
752 f = fopen(name, "w");
753 if (f == NULL) {
754 wpa_printf(MSG_DEBUG, "Failed to open '%s' for writing", name);
755 return -1;
756 }
757
758 wpa_config_write_global(f, config);
759
760 for (ssid = config->ssid; ssid; ssid = ssid->next) {
2ff99b3c
JM		 761 if (ssid->key_mgmt == WPA_KEY_MGMT_WPS || ssid->temporary)
762 continue; /* do not save temporary networks */
8e8280bd
JM		 763 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
764 !ssid->passphrase)
765 continue; /* do not save invalid network */
6fc6879b
JM		 766 fprintf(f, "\nnetwork={\n");
767 wpa_config_write_network(f, ssid);
768 fprintf(f, "}\n");
769 }
770
771#ifndef CONFIG_NO_CONFIG_BLOBS
772 for (blob = config->blobs; blob; blob = blob->next) {
773 ret = wpa_config_write_blob(f, blob);
774 if (ret)
775 break;
776 }
777#endif /* CONFIG_NO_CONFIG_BLOBS */
778
779 fclose(f);
780
781 wpa_printf(MSG_DEBUG, "Configuration file '%s' written %ssuccessfully",
782 name, ret ? "un" : "");
783 return ret;
784#else /* CONFIG_NO_CONFIG_WRITE */
785 return -1;
786#endif /* CONFIG_NO_CONFIG_WRITE */
787}
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