1 /*
2  * WPA Supplicant / Configuration backend: text file
3  * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
4  *
5  * This software may be distributed under the terms of the BSD license.
6  * See README for more details.
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 #ifdef ANDROID
15 #include <sys/stat.h>
16 #endif /* ANDROID */
17 
18 #include "common.h"
19 #include "config.h"
20 #include "base64.h"
21 #include "uuid.h"
22 #include "common/ieee802_1x_defs.h"
23 #include "p2p/p2p.h"
24 #include "eap_peer/eap_methods.h"
25 #include "eap_peer/eap.h"
26 
27 
28 static int newline_terminated(const char *buf, size_t buflen)
29 {
30 	size_t len = os_strlen(buf);
31 	if (len == 0)
32 		return 0;
33 	if (len == buflen - 1 && buf[buflen - 1] != '\r' &&
34 	    buf[len - 1] != '\n')
35 		return 0;
36 	return 1;
37 }
38 
39 
40 static void skip_line_end(FILE *stream)
41 {
42 	char buf[100];
43 	while (fgets(buf, sizeof(buf), stream)) {
44 		buf[sizeof(buf) - 1] = '\0';
45 		if (newline_terminated(buf, sizeof(buf)))
46 			return;
47 	}
48 }
49 
50 
51 /**
52  * wpa_config_get_line - Read the next configuration file line
53  * @s: Buffer for the line
54  * @size: The buffer length
55  * @stream: File stream to read from
56  * @line: Pointer to a variable storing the file line number
57  * @_pos: Buffer for the pointer to the beginning of data on the text line or
58  * %NULL if not needed (returned value used instead)
59  * Returns: Pointer to the beginning of data on the text line or %NULL if no
60  * more text lines are available.
61  *
62  * This function reads the next non-empty line from the configuration file and
63  * removes comments. The returned string is guaranteed to be null-terminated.
64  */
65 static char * wpa_config_get_line(char *s, int size, FILE *stream, int *line,
66 				  char **_pos)
67 {
68 	char *pos, *end, *sstart;
69 
70 	while (fgets(s, size, stream)) {
71 		(*line)++;
72 		s[size - 1] = '\0';
73 		if (!newline_terminated(s, size)) {
74 			/*
75 			 * The line was truncated - skip rest of it to avoid
76 			 * confusing error messages.
77 			 */
78 			wpa_printf(MSG_INFO, "Long line in configuration file "
79 				   "truncated");
80 			skip_line_end(stream);
81 		}
82 		pos = s;
83 
84 		/* Skip white space from the beginning of line. */
85 		while (*pos == ' ' || *pos == '\t' || *pos == '\r')
86 			pos++;
87 
88 		/* Skip comment lines and empty lines */
89 		if (*pos == '#' || *pos == '\n' || *pos == '\0')
90 			continue;
91 
92 		/*
93 		 * Remove # comments unless they are within a double quoted
94 		 * string.
95 		 */
96 		sstart = os_strchr(pos, '"');
97 		if (sstart)
98 			sstart = os_strrchr(sstart + 1, '"');
99 		if (!sstart)
100 			sstart = pos;
101 		end = os_strchr(sstart, '#');
102 		if (end)
103 			*end-- = '\0';
104 		else
105 			end = pos + os_strlen(pos) - 1;
106 
107 		/* Remove trailing white space. */
108 		while (end > pos &&
109 		       (*end == '\n' || *end == ' ' || *end == '\t' ||
110 			*end == '\r'))
111 			*end-- = '\0';
112 
113 		if (*pos == '\0')
114 			continue;
115 
116 		if (_pos)
117 			*_pos = pos;
118 		return pos;
119 	}
120 
121 	if (_pos)
122 		*_pos = NULL;
123 	return NULL;
124 }
125 
126 
127 static int wpa_config_validate_network(struct wpa_ssid *ssid, int line)
128 {
129 	int errors = 0;
130 
131 	if (ssid->passphrase) {
132 		if (ssid->psk_set) {
133 			wpa_printf(MSG_ERROR, "Line %d: both PSK and "
134 				   "passphrase configured.", line);
135 			errors++;
136 		}
137 		wpa_config_update_psk(ssid);
138 	}
139 
140 	if (ssid->disabled == 2)
141 		ssid->p2p_persistent_group = 1;
142 
143 	if ((ssid->group_cipher & WPA_CIPHER_CCMP) &&
144 	    !(ssid->pairwise_cipher & (WPA_CIPHER_CCMP | WPA_CIPHER_CCMP_256 |
145 				       WPA_CIPHER_GCMP | WPA_CIPHER_GCMP_256 |
146 				       WPA_CIPHER_NONE))) {
147 		/* Group cipher cannot be stronger than the pairwise cipher. */
148 		wpa_printf(MSG_DEBUG, "Line %d: removed CCMP from group cipher"
149 			   " list since it was not allowed for pairwise "
150 			   "cipher", line);
151 		ssid->group_cipher &= ~WPA_CIPHER_CCMP;
152 	}
153 
154 	if (ssid->mode == WPAS_MODE_MESH &&
155 	    (ssid->key_mgmt != WPA_KEY_MGMT_NONE &&
156 	    ssid->key_mgmt != WPA_KEY_MGMT_SAE)) {
157 		wpa_printf(MSG_ERROR,
158 			   "Line %d: key_mgmt for mesh network should be open or SAE",
159 			   line);
160 		errors++;
161 	}
162 
163 	return errors;
164 }
165 
166 
167 static struct wpa_ssid * wpa_config_read_network(FILE *f, int *line, int id)
168 {
169 	struct wpa_ssid *ssid;
170 	int errors = 0, end = 0;
171 	char buf[2000], *pos, *pos2;
172 
173 	wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new network block",
174 		   *line);
175 	ssid = os_zalloc(sizeof(*ssid));
176 	if (ssid == NULL)
177 		return NULL;
178 	dl_list_init(&ssid->psk_list);
179 	ssid->id = id;
180 
181 	wpa_config_set_network_defaults(ssid);
182 
183 	while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
184 		if (os_strcmp(pos, "}") == 0) {
185 			end = 1;
186 			break;
187 		}
188 
189 		pos2 = os_strchr(pos, '=');
190 		if (pos2 == NULL) {
191 			wpa_printf(MSG_ERROR, "Line %d: Invalid SSID line "
192 				   "'%s'.", *line, pos);
193 			errors++;
194 			continue;
195 		}
196 
197 		*pos2++ = '\0';
198 		if (*pos2 == '"') {
199 			if (os_strchr(pos2 + 1, '"') == NULL) {
200 				wpa_printf(MSG_ERROR, "Line %d: invalid "
201 					   "quotation '%s'.", *line, pos2);
202 				errors++;
203 				continue;
204 			}
205 		}
206 
207 		if (wpa_config_set(ssid, pos, pos2, *line) < 0)
208 			errors++;
209 	}
210 
211 	if (!end) {
212 		wpa_printf(MSG_ERROR, "Line %d: network block was not "
213 			   "terminated properly.", *line);
214 		errors++;
215 	}
216 
217 	errors += wpa_config_validate_network(ssid, *line);
218 
219 	if (errors) {
220 		wpa_config_free_ssid(ssid);
221 		ssid = NULL;
222 	}
223 
224 	return ssid;
225 }
226 
227 
228 static struct wpa_cred * wpa_config_read_cred(FILE *f, int *line, int id)
229 {
230 	struct wpa_cred *cred;
231 	int errors = 0, end = 0;
232 	char buf[256], *pos, *pos2;
233 
234 	wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new cred block", *line);
235 	cred = os_zalloc(sizeof(*cred));
236 	if (cred == NULL)
237 		return NULL;
238 	cred->id = id;
239 	cred->sim_num = DEFAULT_USER_SELECTED_SIM;
240 
241 	while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
242 		if (os_strcmp(pos, "}") == 0) {
243 			end = 1;
244 			break;
245 		}
246 
247 		pos2 = os_strchr(pos, '=');
248 		if (pos2 == NULL) {
249 			wpa_printf(MSG_ERROR, "Line %d: Invalid cred line "
250 				   "'%s'.", *line, pos);
251 			errors++;
252 			continue;
253 		}
254 
255 		*pos2++ = '\0';
256 		if (*pos2 == '"') {
257 			if (os_strchr(pos2 + 1, '"') == NULL) {
258 				wpa_printf(MSG_ERROR, "Line %d: invalid "
259 					   "quotation '%s'.", *line, pos2);
260 				errors++;
261 				continue;
262 			}
263 		}
264 
265 		if (wpa_config_set_cred(cred, pos, pos2, *line) < 0)
266 			errors++;
267 	}
268 
269 	if (!end) {
270 		wpa_printf(MSG_ERROR, "Line %d: cred block was not "
271 			   "terminated properly.", *line);
272 		errors++;
273 	}
274 
275 	if (errors) {
276 		wpa_config_free_cred(cred);
277 		cred = NULL;
278 	}
279 
280 	return cred;
281 }
282 
283 
284 #ifndef CONFIG_NO_CONFIG_BLOBS
285 static struct wpa_config_blob * wpa_config_read_blob(FILE *f, int *line,
286 						     const char *name)
287 {
288 	struct wpa_config_blob *blob;
289 	char buf[256], *pos;
290 	unsigned char *encoded = NULL, *nencoded;
291 	int end = 0;
292 	size_t encoded_len = 0, len;
293 
294 	wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new named blob '%s'",
295 		   *line, name);
296 
297 	while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
298 		if (os_strcmp(pos, "}") == 0) {
299 			end = 1;
300 			break;
301 		}
302 
303 		len = os_strlen(pos);
304 		nencoded = os_realloc(encoded, encoded_len + len);
305 		if (nencoded == NULL) {
306 			wpa_printf(MSG_ERROR, "Line %d: not enough memory for "
307 				   "blob", *line);
308 			os_free(encoded);
309 			return NULL;
310 		}
311 		encoded = nencoded;
312 		os_memcpy(encoded + encoded_len, pos, len);
313 		encoded_len += len;
314 	}
315 
316 	if (!end || !encoded) {
317 		wpa_printf(MSG_ERROR, "Line %d: blob was not terminated "
318 			   "properly", *line);
319 		os_free(encoded);
320 		return NULL;
321 	}
322 
323 	blob = os_zalloc(sizeof(*blob));
324 	if (blob == NULL) {
325 		os_free(encoded);
326 		return NULL;
327 	}
328 	blob->name = os_strdup(name);
329 	blob->data = base64_decode(encoded, encoded_len, &blob->len);
330 	os_free(encoded);
331 
332 	if (blob->name == NULL || blob->data == NULL) {
333 		wpa_config_free_blob(blob);
334 		return NULL;
335 	}
336 
337 	return blob;
338 }
339 
340 
341 static int wpa_config_process_blob(struct wpa_config *config, FILE *f,
342 				   int *line, char *bname)
343 {
344 	char *name_end;
345 	struct wpa_config_blob *blob;
346 
347 	name_end = os_strchr(bname, '=');
348 	if (name_end == NULL) {
349 		wpa_printf(MSG_ERROR, "Line %d: no blob name terminator",
350 			   *line);
351 		return -1;
352 	}
353 	*name_end = '\0';
354 
355 	blob = wpa_config_read_blob(f, line, bname);
356 	if (blob == NULL) {
357 		wpa_printf(MSG_ERROR, "Line %d: failed to read blob %s",
358 			   *line, bname);
359 		return -1;
360 	}
361 	wpa_config_set_blob(config, blob);
362 	return 0;
363 }
364 #endif /* CONFIG_NO_CONFIG_BLOBS */
365 
366 
367 struct wpa_config * wpa_config_read(const char *name, struct wpa_config *cfgp)
368 {
369 	FILE *f;
370 	char buf[512], *pos;
371 	int errors = 0, line = 0;
372 	struct wpa_ssid *ssid, *tail, *head;
373 	struct wpa_cred *cred, *cred_tail, *cred_head;
374 	struct wpa_config *config;
375 	int id = 0;
376 	int cred_id = 0;
377 
378 	if (name == NULL)
379 		return NULL;
380 	if (cfgp)
381 		config = cfgp;
382 	else
383 		config = wpa_config_alloc_empty(NULL, NULL);
384 	if (config == NULL) {
385 		wpa_printf(MSG_ERROR, "Failed to allocate config file "
386 			   "structure");
387 		return NULL;
388 	}
389 	tail = head = config->ssid;
390 	while (tail && tail->next)
391 		tail = tail->next;
392 	cred_tail = cred_head = config->cred;
393 	while (cred_tail && cred_tail->next)
394 		cred_tail = cred_tail->next;
395 
396 	wpa_printf(MSG_DEBUG, "Reading configuration file '%s'", name);
397 	f = fopen(name, "r");
398 	if (f == NULL) {
399 		wpa_printf(MSG_ERROR, "Failed to open config file '%s', "
400 			   "error: %s", name, strerror(errno));
401 		if (config != cfgp)
402 			os_free(config);
403 		return NULL;
404 	}
405 
406 	while (wpa_config_get_line(buf, sizeof(buf), f, &line, &pos)) {
407 		if (os_strcmp(pos, "network={") == 0) {
408 			ssid = wpa_config_read_network(f, &line, id++);
409 			if (ssid == NULL) {
410 				wpa_printf(MSG_ERROR, "Line %d: failed to "
411 					   "parse network block.", line);
412 				errors++;
413 				continue;
414 			}
415 			if (head == NULL) {
416 				head = tail = ssid;
417 			} else {
418 				tail->next = ssid;
419 				tail = ssid;
420 			}
421 			if (wpa_config_add_prio_network(config, ssid)) {
422 				wpa_printf(MSG_ERROR, "Line %d: failed to add "
423 					   "network block to priority list.",
424 					   line);
425 				errors++;
426 				continue;
427 			}
428 		} else if (os_strcmp(pos, "cred={") == 0) {
429 			cred = wpa_config_read_cred(f, &line, cred_id++);
430 			if (cred == NULL) {
431 				wpa_printf(MSG_ERROR, "Line %d: failed to "
432 					   "parse cred block.", line);
433 				errors++;
434 				continue;
435 			}
436 			if (cred_head == NULL) {
437 				cred_head = cred_tail = cred;
438 			} else {
439 				cred_tail->next = cred;
440 				cred_tail = cred;
441 			}
442 #ifndef CONFIG_NO_CONFIG_BLOBS
443 		} else if (os_strncmp(pos, "blob-base64-", 12) == 0) {
444 			if (wpa_config_process_blob(config, f, &line, pos + 12)
445 			    < 0) {
446 				wpa_printf(MSG_ERROR, "Line %d: failed to "
447 					   "process blob.", line);
448 				errors++;
449 				continue;
450 			}
451 #endif /* CONFIG_NO_CONFIG_BLOBS */
452 		} else if (wpa_config_process_global(config, pos, line) < 0) {
453 			wpa_printf(MSG_ERROR, "Line %d: Invalid configuration "
454 				   "line '%s'.", line, pos);
455 			errors++;
456 			continue;
457 		}
458 	}
459 
460 	fclose(f);
461 
462 	config->ssid = head;
463 	wpa_config_debug_dump_networks(config);
464 	config->cred = cred_head;
465 
466 #ifndef WPA_IGNORE_CONFIG_ERRORS
467 	if (errors) {
468 		if (config != cfgp)
469 			wpa_config_free(config);
470 		config = NULL;
471 		head = NULL;
472 	}
473 #endif /* WPA_IGNORE_CONFIG_ERRORS */
474 
475 	return config;
476 }
477 
478 
479 #ifndef CONFIG_NO_CONFIG_WRITE
480 
481 static void write_str(FILE *f, const char *field, struct wpa_ssid *ssid)
482 {
483 	char *value = wpa_config_get(ssid, field);
484 	if (value == NULL)
485 		return;
486 	fprintf(f, "\t%s=%s\n", field, value);
487 	os_free(value);
488 }
489 
490 
491 static void write_int(FILE *f, const char *field, int value, int def)
492 {
493 	if (value == def)
494 		return;
495 	fprintf(f, "\t%s=%d\n", field, value);
496 }
497 
498 
499 static void write_bssid(FILE *f, struct wpa_ssid *ssid)
500 {
501 	char *value = wpa_config_get(ssid, "bssid");
502 	if (value == NULL)
503 		return;
504 	fprintf(f, "\tbssid=%s\n", value);
505 	os_free(value);
506 }
507 
508 
509 static void write_bssid_hint(FILE *f, struct wpa_ssid *ssid)
510 {
511 	char *value = wpa_config_get(ssid, "bssid_hint");
512 
513 	if (!value)
514 		return;
515 	fprintf(f, "\tbssid_hint=%s\n", value);
516 	os_free(value);
517 }
518 
519 
520 static void write_psk(FILE *f, struct wpa_ssid *ssid)
521 {
522 	char *value;
523 
524 	if (ssid->mem_only_psk)
525 		return;
526 
527 	value = wpa_config_get(ssid, "psk");
528 	if (value == NULL)
529 		return;
530 	fprintf(f, "\tpsk=%s\n", value);
531 	os_free(value);
532 }
533 
534 
535 static void write_proto(FILE *f, struct wpa_ssid *ssid)
536 {
537 	char *value;
538 
539 	if (ssid->proto == DEFAULT_PROTO)
540 		return;
541 
542 	value = wpa_config_get(ssid, "proto");
543 	if (value == NULL)
544 		return;
545 	if (value[0])
546 		fprintf(f, "\tproto=%s\n", value);
547 	os_free(value);
548 }
549 
550 
551 static void write_key_mgmt(FILE *f, struct wpa_ssid *ssid)
552 {
553 	char *value;
554 
555 	if (ssid->key_mgmt == DEFAULT_KEY_MGMT)
556 		return;
557 
558 	value = wpa_config_get(ssid, "key_mgmt");
559 	if (value == NULL)
560 		return;
561 	if (value[0])
562 		fprintf(f, "\tkey_mgmt=%s\n", value);
563 	os_free(value);
564 }
565 
566 
567 static void write_pairwise(FILE *f, struct wpa_ssid *ssid)
568 {
569 	char *value;
570 
571 	if (ssid->pairwise_cipher == DEFAULT_PAIRWISE)
572 		return;
573 
574 	value = wpa_config_get(ssid, "pairwise");
575 	if (value == NULL)
576 		return;
577 	if (value[0])
578 		fprintf(f, "\tpairwise=%s\n", value);
579 	os_free(value);
580 }
581 
582 
583 static void write_group(FILE *f, struct wpa_ssid *ssid)
584 {
585 	char *value;
586 
587 	if (ssid->group_cipher == DEFAULT_GROUP)
588 		return;
589 
590 	value = wpa_config_get(ssid, "group");
591 	if (value == NULL)
592 		return;
593 	if (value[0])
594 		fprintf(f, "\tgroup=%s\n", value);
595 	os_free(value);
596 }
597 
598 
599 static void write_group_mgmt(FILE *f, struct wpa_ssid *ssid)
600 {
601 	char *value;
602 
603 	if (!ssid->group_mgmt_cipher)
604 		return;
605 
606 	value = wpa_config_get(ssid, "group_mgmt");
607 	if (!value)
608 		return;
609 	if (value[0])
610 		fprintf(f, "\tgroup_mgmt=%s\n", value);
611 	os_free(value);
612 }
613 
614 
615 static void write_auth_alg(FILE *f, struct wpa_ssid *ssid)
616 {
617 	char *value;
618 
619 	if (ssid->auth_alg == 0)
620 		return;
621 
622 	value = wpa_config_get(ssid, "auth_alg");
623 	if (value == NULL)
624 		return;
625 	if (value[0])
626 		fprintf(f, "\tauth_alg=%s\n", value);
627 	os_free(value);
628 }
629 
630 
631 #ifdef IEEE8021X_EAPOL
632 static void write_eap(FILE *f, struct wpa_ssid *ssid)
633 {
634 	char *value;
635 
636 	value = wpa_config_get(ssid, "eap");
637 	if (value == NULL)
638 		return;
639 
640 	if (value[0])
641 		fprintf(f, "\teap=%s\n", value);
642 	os_free(value);
643 }
644 #endif /* IEEE8021X_EAPOL */
645 
646 
647 static void write_wep_key(FILE *f, int idx, struct wpa_ssid *ssid)
648 {
649 	char field[20], *value;
650 	int res;
651 
652 	res = os_snprintf(field, sizeof(field), "wep_key%d", idx);
653 	if (os_snprintf_error(sizeof(field), res))
654 		return;
655 	value = wpa_config_get(ssid, field);
656 	if (value) {
657 		fprintf(f, "\t%s=%s\n", field, value);
658 		os_free(value);
659 	}
660 }
661 
662 
663 #ifdef CONFIG_P2P
664 
665 static void write_go_p2p_dev_addr(FILE *f, struct wpa_ssid *ssid)
666 {
667 	char *value = wpa_config_get(ssid, "go_p2p_dev_addr");
668 	if (value == NULL)
669 		return;
670 	fprintf(f, "\tgo_p2p_dev_addr=%s\n", value);
671 	os_free(value);
672 }
673 
674 static void write_p2p_client_list(FILE *f, struct wpa_ssid *ssid)
675 {
676 	char *value = wpa_config_get(ssid, "p2p_client_list");
677 	if (value == NULL)
678 		return;
679 	fprintf(f, "\tp2p_client_list=%s\n", value);
680 	os_free(value);
681 }
682 
683 
684 static void write_psk_list(FILE *f, struct wpa_ssid *ssid)
685 {
686 	struct psk_list_entry *psk;
687 	char hex[32 * 2 + 1];
688 
689 	dl_list_for_each(psk, &ssid->psk_list, struct psk_list_entry, list) {
690 		wpa_snprintf_hex(hex, sizeof(hex), psk->psk, sizeof(psk->psk));
691 		fprintf(f, "\tpsk_list=%s" MACSTR "-%s\n",
692 			psk->p2p ? "P2P-" : "", MAC2STR(psk->addr), hex);
693 	}
694 }
695 
696 #endif /* CONFIG_P2P */
697 
698 
699 #ifdef CONFIG_MACSEC
700 
701 static void write_mka_cak(FILE *f, struct wpa_ssid *ssid)
702 {
703 	char *value;
704 
705 	if (!(ssid->mka_psk_set & MKA_PSK_SET_CAK))
706 		return;
707 
708 	value = wpa_config_get(ssid, "mka_cak");
709 	if (!value)
710 		return;
711 	fprintf(f, "\tmka_cak=%s\n", value);
712 	os_free(value);
713 }
714 
715 
716 static void write_mka_ckn(FILE *f, struct wpa_ssid *ssid)
717 {
718 	char *value;
719 
720 	if (!(ssid->mka_psk_set & MKA_PSK_SET_CKN))
721 		return;
722 
723 	value = wpa_config_get(ssid, "mka_ckn");
724 	if (!value)
725 		return;
726 	fprintf(f, "\tmka_ckn=%s\n", value);
727 	os_free(value);
728 }
729 
730 #endif /* CONFIG_MACSEC */
731 
732 
733 static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
734 {
735 	int i;
736 
737 #define STR(t) write_str(f, #t, ssid)
738 #define INT(t) write_int(f, #t, ssid->t, 0)
739 #define INTe(t) write_int(f, #t, ssid->eap.t, 0)
740 #define INT_DEF(t, def) write_int(f, #t, ssid->t, def)
741 #define INT_DEFe(t, def) write_int(f, #t, ssid->eap.t, def)
742 
743 	STR(ssid);
744 	INT(scan_ssid);
745 	write_bssid(f, ssid);
746 	write_bssid_hint(f, ssid);
747 	write_str(f, "bssid_blacklist", ssid);
748 	write_str(f, "bssid_whitelist", ssid);
749 	write_psk(f, ssid);
750 	INT(mem_only_psk);
751 	STR(sae_password);
752 	STR(sae_password_id);
753 	write_proto(f, ssid);
754 	write_key_mgmt(f, ssid);
755 	INT_DEF(bg_scan_period, DEFAULT_BG_SCAN_PERIOD);
756 	write_pairwise(f, ssid);
757 	write_group(f, ssid);
758 	write_group_mgmt(f, ssid);
759 	write_auth_alg(f, ssid);
760 	STR(bgscan);
761 	STR(autoscan);
762 	STR(scan_freq);
763 #ifdef IEEE8021X_EAPOL
764 	write_eap(f, ssid);
765 	STR(identity);
766 	STR(anonymous_identity);
767 	STR(imsi_identity);
768 	STR(password);
769 	STR(ca_cert);
770 	STR(ca_path);
771 	STR(client_cert);
772 	STR(private_key);
773 	STR(private_key_passwd);
774 	STR(dh_file);
775 	STR(subject_match);
776 	STR(altsubject_match);
777 	STR(domain_suffix_match);
778 	STR(domain_match);
779 	STR(ca_cert2);
780 	STR(ca_path2);
781 	STR(client_cert2);
782 	STR(private_key2);
783 	STR(private_key2_passwd);
784 	STR(dh_file2);
785 	STR(subject_match2);
786 	STR(altsubject_match2);
787 	STR(domain_suffix_match2);
788 	STR(domain_match2);
789 	STR(phase1);
790 	STR(phase2);
791 	STR(pcsc);
792 	STR(pin);
793 	STR(engine_id);
794 	STR(key_id);
795 	STR(cert_id);
796 	STR(ca_cert_id);
797 	STR(key2_id);
798 	STR(pin2);
799 	STR(engine2_id);
800 	STR(cert2_id);
801 	STR(ca_cert2_id);
802 	INTe(engine);
803 	INTe(engine2);
804 	INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS);
805 	STR(openssl_ciphers);
806 	INTe(erp);
807 #endif /* IEEE8021X_EAPOL */
808 	for (i = 0; i < 4; i++)
809 		write_wep_key(f, i, ssid);
810 	INT(wep_tx_keyidx);
811 	INT(priority);
812 #ifdef IEEE8021X_EAPOL
813 	INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND);
814 	STR(pac_file);
815 	INT_DEFe(fragment_size, DEFAULT_FRAGMENT_SIZE);
816 	INTe(ocsp);
817 	INT_DEFe(sim_num, DEFAULT_USER_SELECTED_SIM);
818 #endif /* IEEE8021X_EAPOL */
819 	INT(mode);
820 	INT(no_auto_peer);
821 	INT(frequency);
822 	INT(fixed_freq);
823 #ifdef CONFIG_ACS
824 	INT(acs);
825 #endif /* CONFIG_ACS */
826 	write_int(f, "proactive_key_caching", ssid->proactive_key_caching, -1);
827 	INT(disabled);
828 	INT(mixed_cell);
829 	INT(vht);
830 	INT_DEF(ht, 1);
831 	INT(ht40);
832 	INT(max_oper_chwidth);
833 	INT(vht_center_freq1);
834 	INT(vht_center_freq2);
835 	INT(pbss);
836 	INT(wps_disabled);
837 	INT(fils_dh_group);
838 #ifdef CONFIG_IEEE80211W
839 	write_int(f, "ieee80211w", ssid->ieee80211w,
840 		  MGMT_FRAME_PROTECTION_DEFAULT);
841 #endif /* CONFIG_IEEE80211W */
842 	STR(id_str);
843 #ifdef CONFIG_P2P
844 	write_go_p2p_dev_addr(f, ssid);
845 	write_p2p_client_list(f, ssid);
846 	write_psk_list(f, ssid);
847 #endif /* CONFIG_P2P */
848 	INT(ap_max_inactivity);
849 	INT(dtim_period);
850 	INT(beacon_int);
851 #ifdef CONFIG_MACSEC
852 	INT(macsec_policy);
853 	write_mka_cak(f, ssid);
854 	write_mka_ckn(f, ssid);
855 	INT(macsec_integ_only);
856 	INT(macsec_port);
857 	INT_DEF(mka_priority, DEFAULT_PRIO_NOT_KEY_SERVER);
858 #endif /* CONFIG_MACSEC */
859 #ifdef CONFIG_HS20
860 	INT(update_identifier);
861 	STR(roaming_consortium_selection);
862 #endif /* CONFIG_HS20 */
863 	write_int(f, "mac_addr", ssid->mac_addr, -1);
864 #ifdef CONFIG_MESH
865 	STR(mesh_basic_rates);
866 	INT_DEF(dot11MeshMaxRetries, DEFAULT_MESH_MAX_RETRIES);
867 	INT_DEF(dot11MeshRetryTimeout, DEFAULT_MESH_RETRY_TIMEOUT);
868 	INT_DEF(dot11MeshConfirmTimeout, DEFAULT_MESH_CONFIRM_TIMEOUT);
869 	INT_DEF(dot11MeshHoldingTimeout, DEFAULT_MESH_HOLDING_TIMEOUT);
870 	INT_DEF(mesh_rssi_threshold, DEFAULT_MESH_RSSI_THRESHOLD);
871 #endif /* CONFIG_MESH */
872 	INT(wpa_ptk_rekey);
873 	INT(group_rekey);
874 	INT(ignore_broadcast_ssid);
875 #ifdef CONFIG_DPP
876 	STR(dpp_connector);
877 	STR(dpp_netaccesskey);
878 	INT(dpp_netaccesskey_expiry);
879 	STR(dpp_csign);
880 #endif /* CONFIG_DPP */
881 	INT(owe_group);
882 	INT(owe_only);
883 #ifdef CONFIG_HT_OVERRIDES
884 	INT_DEF(disable_ht, DEFAULT_DISABLE_HT);
885 	INT_DEF(disable_ht40, DEFAULT_DISABLE_HT40);
886 	INT_DEF(disable_sgi, DEFAULT_DISABLE_SGI);
887 	INT_DEF(disable_ldpc, DEFAULT_DISABLE_LDPC);
888 	INT(ht40_intolerant);
889 	INT_DEF(disable_max_amsdu, DEFAULT_DISABLE_MAX_AMSDU);
890 	INT_DEF(ampdu_factor, DEFAULT_AMPDU_FACTOR);
891 	INT_DEF(ampdu_density, DEFAULT_AMPDU_DENSITY);
892 	STR(ht_mcs);
893 #endif /* CONFIG_HT_OVERRIDES */
894 #ifdef CONFIG_VHT_OVERRIDES
895 	INT(disable_vht);
896 	INT(vht_capa);
897 	INT(vht_capa_mask);
898 	INT_DEF(vht_rx_mcs_nss_1, -1);
899 	INT_DEF(vht_rx_mcs_nss_2, -1);
900 	INT_DEF(vht_rx_mcs_nss_3, -1);
901 	INT_DEF(vht_rx_mcs_nss_4, -1);
902 	INT_DEF(vht_rx_mcs_nss_5, -1);
903 	INT_DEF(vht_rx_mcs_nss_6, -1);
904 	INT_DEF(vht_rx_mcs_nss_7, -1);
905 	INT_DEF(vht_rx_mcs_nss_8, -1);
906 	INT_DEF(vht_tx_mcs_nss_1, -1);
907 	INT_DEF(vht_tx_mcs_nss_2, -1);
908 	INT_DEF(vht_tx_mcs_nss_3, -1);
909 	INT_DEF(vht_tx_mcs_nss_4, -1);
910 	INT_DEF(vht_tx_mcs_nss_5, -1);
911 	INT_DEF(vht_tx_mcs_nss_6, -1);
912 	INT_DEF(vht_tx_mcs_nss_7, -1);
913 	INT_DEF(vht_tx_mcs_nss_8, -1);
914 #endif /* CONFIG_VHT_OVERRIDES */
915 
916 #undef STR
917 #undef INT
918 #undef INT_DEF
919 }
920 
921 
922 static void wpa_config_write_cred(FILE *f, struct wpa_cred *cred)
923 {
924 	size_t i;
925 
926 	if (cred->priority)
927 		fprintf(f, "\tpriority=%d\n", cred->priority);
928 	if (cred->pcsc)
929 		fprintf(f, "\tpcsc=%d\n", cred->pcsc);
930 	if (cred->realm)
931 		fprintf(f, "\trealm=\"%s\"\n", cred->realm);
932 	if (cred->username)
933 		fprintf(f, "\tusername=\"%s\"\n", cred->username);
934 	if (cred->password && cred->ext_password)
935 		fprintf(f, "\tpassword=ext:%s\n", cred->password);
936 	else if (cred->password)
937 		fprintf(f, "\tpassword=\"%s\"\n", cred->password);
938 	if (cred->ca_cert)
939 		fprintf(f, "\tca_cert=\"%s\"\n", cred->ca_cert);
940 	if (cred->client_cert)
941 		fprintf(f, "\tclient_cert=\"%s\"\n", cred->client_cert);
942 	if (cred->private_key)
943 		fprintf(f, "\tprivate_key=\"%s\"\n", cred->private_key);
944 	if (cred->private_key_passwd)
945 		fprintf(f, "\tprivate_key_passwd=\"%s\"\n",
946 			cred->private_key_passwd);
947 	if (cred->imsi)
948 		fprintf(f, "\timsi=\"%s\"\n", cred->imsi);
949 	if (cred->milenage)
950 		fprintf(f, "\tmilenage=\"%s\"\n", cred->milenage);
951 	for (i = 0; i < cred->num_domain; i++)
952 		fprintf(f, "\tdomain=\"%s\"\n", cred->domain[i]);
953 	if (cred->domain_suffix_match)
954 		fprintf(f, "\tdomain_suffix_match=\"%s\"\n",
955 			cred->domain_suffix_match);
956 	if (cred->roaming_consortium_len) {
957 		fprintf(f, "\troaming_consortium=");
958 		for (i = 0; i < cred->roaming_consortium_len; i++)
959 			fprintf(f, "%02x", cred->roaming_consortium[i]);
960 		fprintf(f, "\n");
961 	}
962 	if (cred->eap_method) {
963 		const char *name;
964 		name = eap_get_name(cred->eap_method[0].vendor,
965 				    cred->eap_method[0].method);
966 		if (name)
967 			fprintf(f, "\teap=%s\n", name);
968 	}
969 	if (cred->phase1)
970 		fprintf(f, "\tphase1=\"%s\"\n", cred->phase1);
971 	if (cred->phase2)
972 		fprintf(f, "\tphase2=\"%s\"\n", cred->phase2);
973 	if (cred->excluded_ssid) {
974 		size_t j;
975 		for (i = 0; i < cred->num_excluded_ssid; i++) {
976 			struct excluded_ssid *e = &cred->excluded_ssid[i];
977 			fprintf(f, "\texcluded_ssid=");
978 			for (j = 0; j < e->ssid_len; j++)
979 				fprintf(f, "%02x", e->ssid[j]);
980 			fprintf(f, "\n");
981 		}
982 	}
983 	if (cred->roaming_partner) {
984 		for (i = 0; i < cred->num_roaming_partner; i++) {
985 			struct roaming_partner *p = &cred->roaming_partner[i];
986 			fprintf(f, "\troaming_partner=\"%s,%d,%u,%s\"\n",
987 				p->fqdn, p->exact_match, p->priority,
988 				p->country);
989 		}
990 	}
991 	if (cred->update_identifier)
992 		fprintf(f, "\tupdate_identifier=%d\n", cred->update_identifier);
993 
994 	if (cred->provisioning_sp)
995 		fprintf(f, "\tprovisioning_sp=\"%s\"\n", cred->provisioning_sp);
996 	if (cred->sp_priority)
997 		fprintf(f, "\tsp_priority=%d\n", cred->sp_priority);
998 
999 	if (cred->min_dl_bandwidth_home)
1000 		fprintf(f, "\tmin_dl_bandwidth_home=%u\n",
1001 			cred->min_dl_bandwidth_home);
1002 	if (cred->min_ul_bandwidth_home)
1003 		fprintf(f, "\tmin_ul_bandwidth_home=%u\n",
1004 			cred->min_ul_bandwidth_home);
1005 	if (cred->min_dl_bandwidth_roaming)
1006 		fprintf(f, "\tmin_dl_bandwidth_roaming=%u\n",
1007 			cred->min_dl_bandwidth_roaming);
1008 	if (cred->min_ul_bandwidth_roaming)
1009 		fprintf(f, "\tmin_ul_bandwidth_roaming=%u\n",
1010 			cred->min_ul_bandwidth_roaming);
1011 
1012 	if (cred->max_bss_load)
1013 		fprintf(f, "\tmax_bss_load=%u\n",
1014 			cred->max_bss_load);
1015 
1016 	if (cred->ocsp)
1017 		fprintf(f, "\tocsp=%d\n", cred->ocsp);
1018 
1019 	if (cred->num_req_conn_capab) {
1020 		for (i = 0; i < cred->num_req_conn_capab; i++) {
1021 			int *ports;
1022 
1023 			fprintf(f, "\treq_conn_capab=%u",
1024 				cred->req_conn_capab_proto[i]);
1025 			ports = cred->req_conn_capab_port[i];
1026 			if (ports) {
1027 				int j;
1028 				for (j = 0; ports[j] != -1; j++) {
1029 					fprintf(f, "%s%d", j > 0 ? "," : ":",
1030 						ports[j]);
1031 				}
1032 			}
1033 			fprintf(f, "\n");
1034 		}
1035 	}
1036 
1037 	if (cred->required_roaming_consortium_len) {
1038 		fprintf(f, "\trequired_roaming_consortium=");
1039 		for (i = 0; i < cred->required_roaming_consortium_len; i++)
1040 			fprintf(f, "%02x",
1041 				cred->required_roaming_consortium[i]);
1042 		fprintf(f, "\n");
1043 	}
1044 
1045 	if (cred->num_roaming_consortiums) {
1046 		size_t j;
1047 
1048 		fprintf(f, "\troaming_consortiums=\"");
1049 		for (i = 0; i < cred->num_roaming_consortiums; i++) {
1050 			if (i > 0)
1051 				fprintf(f, ",");
1052 			for (j = 0; j < cred->roaming_consortiums_len[i]; j++)
1053 				fprintf(f, "%02x",
1054 					cred->roaming_consortiums[i][j]);
1055 		}
1056 		fprintf(f, "\"\n");
1057 	}
1058 
1059 	if (cred->sim_num != DEFAULT_USER_SELECTED_SIM)
1060 		fprintf(f, "\tsim_num=%d\n", cred->sim_num);
1061 }
1062 
1063 
1064 #ifndef CONFIG_NO_CONFIG_BLOBS
1065 static int wpa_config_write_blob(FILE *f, struct wpa_config_blob *blob)
1066 {
1067 	unsigned char *encoded;
1068 
1069 	encoded = base64_encode(blob->data, blob->len, NULL);
1070 	if (encoded == NULL)
1071 		return -1;
1072 
1073 	fprintf(f, "\nblob-base64-%s={\n%s}\n", blob->name, encoded);
1074 	os_free(encoded);
1075 	return 0;
1076 }
1077 #endif /* CONFIG_NO_CONFIG_BLOBS */
1078 
1079 
1080 static void write_global_bin(FILE *f, const char *field,
1081 			     const struct wpabuf *val)
1082 {
1083 	size_t i;
1084 	const u8 *pos;
1085 
1086 	if (val == NULL)
1087 		return;
1088 
1089 	fprintf(f, "%s=", field);
1090 	pos = wpabuf_head(val);
1091 	for (i = 0; i < wpabuf_len(val); i++)
1092 		fprintf(f, "%02X", *pos++);
1093 	fprintf(f, "\n");
1094 }
1095 
1096 
1097 static void wpa_config_write_global(FILE *f, struct wpa_config *config)
1098 {
1099 #ifdef CONFIG_CTRL_IFACE
1100 	if (config->ctrl_interface)
1101 		fprintf(f, "ctrl_interface=%s\n", config->ctrl_interface);
1102 	if (config->ctrl_interface_group)
1103 		fprintf(f, "ctrl_interface_group=%s\n",
1104 			config->ctrl_interface_group);
1105 #endif /* CONFIG_CTRL_IFACE */
1106 	if (config->eapol_version != DEFAULT_EAPOL_VERSION)
1107 		fprintf(f, "eapol_version=%d\n", config->eapol_version);
1108 	if (config->ap_scan != DEFAULT_AP_SCAN)
1109 		fprintf(f, "ap_scan=%d\n", config->ap_scan);
1110 	if (config->disable_scan_offload)
1111 		fprintf(f, "disable_scan_offload=%d\n",
1112 			config->disable_scan_offload);
1113 	if (config->fast_reauth != DEFAULT_FAST_REAUTH)
1114 		fprintf(f, "fast_reauth=%d\n", config->fast_reauth);
1115 	if (config->opensc_engine_path)
1116 		fprintf(f, "opensc_engine_path=%s\n",
1117 			config->opensc_engine_path);
1118 	if (config->pkcs11_engine_path)
1119 		fprintf(f, "pkcs11_engine_path=%s\n",
1120 			config->pkcs11_engine_path);
1121 	if (config->pkcs11_module_path)
1122 		fprintf(f, "pkcs11_module_path=%s\n",
1123 			config->pkcs11_module_path);
1124 	if (config->openssl_ciphers)
1125 		fprintf(f, "openssl_ciphers=%s\n", config->openssl_ciphers);
1126 	if (config->pcsc_reader)
1127 		fprintf(f, "pcsc_reader=%s\n", config->pcsc_reader);
1128 	if (config->pcsc_pin)
1129 		fprintf(f, "pcsc_pin=%s\n", config->pcsc_pin);
1130 	if (config->driver_param)
1131 		fprintf(f, "driver_param=%s\n", config->driver_param);
1132 	if (config->dot11RSNAConfigPMKLifetime)
1133 		fprintf(f, "dot11RSNAConfigPMKLifetime=%u\n",
1134 			config->dot11RSNAConfigPMKLifetime);
1135 	if (config->dot11RSNAConfigPMKReauthThreshold)
1136 		fprintf(f, "dot11RSNAConfigPMKReauthThreshold=%u\n",
1137 			config->dot11RSNAConfigPMKReauthThreshold);
1138 	if (config->dot11RSNAConfigSATimeout)
1139 		fprintf(f, "dot11RSNAConfigSATimeout=%u\n",
1140 			config->dot11RSNAConfigSATimeout);
1141 	if (config->update_config)
1142 		fprintf(f, "update_config=%d\n", config->update_config);
1143 #ifdef CONFIG_WPS
1144 	if (!is_nil_uuid(config->uuid)) {
1145 		char buf[40];
1146 		uuid_bin2str(config->uuid, buf, sizeof(buf));
1147 		fprintf(f, "uuid=%s\n", buf);
1148 	}
1149 	if (config->auto_uuid)
1150 		fprintf(f, "auto_uuid=%d\n", config->auto_uuid);
1151 	if (config->device_name)
1152 		fprintf(f, "device_name=%s\n", config->device_name);
1153 	if (config->manufacturer)
1154 		fprintf(f, "manufacturer=%s\n", config->manufacturer);
1155 	if (config->model_name)
1156 		fprintf(f, "model_name=%s\n", config->model_name);
1157 	if (config->model_number)
1158 		fprintf(f, "model_number=%s\n", config->model_number);
1159 	if (config->serial_number)
1160 		fprintf(f, "serial_number=%s\n", config->serial_number);
1161 	{
1162 		char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
1163 		buf = wps_dev_type_bin2str(config->device_type,
1164 					   _buf, sizeof(_buf));
1165 		if (os_strcmp(buf, "0-00000000-0") != 0)
1166 			fprintf(f, "device_type=%s\n", buf);
1167 	}
1168 	if (WPA_GET_BE32(config->os_version))
1169 		fprintf(f, "os_version=%08x\n",
1170 			WPA_GET_BE32(config->os_version));
1171 	if (config->config_methods)
1172 		fprintf(f, "config_methods=%s\n", config->config_methods);
1173 	if (config->wps_cred_processing)
1174 		fprintf(f, "wps_cred_processing=%d\n",
1175 			config->wps_cred_processing);
1176 	if (config->wps_vendor_ext_m1) {
1177 		int i, len = wpabuf_len(config->wps_vendor_ext_m1);
1178 		const u8 *p = wpabuf_head_u8(config->wps_vendor_ext_m1);
1179 		if (len > 0) {
1180 			fprintf(f, "wps_vendor_ext_m1=");
1181 			for (i = 0; i < len; i++)
1182 				fprintf(f, "%02x", *p++);
1183 			fprintf(f, "\n");
1184 		}
1185 	}
1186 #endif /* CONFIG_WPS */
1187 #ifdef CONFIG_P2P
1188 	{
1189 		int i;
1190 		char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
1191 
1192 		for (i = 0; i < config->num_sec_device_types; i++) {
1193 			buf = wps_dev_type_bin2str(config->sec_device_type[i],
1194 						   _buf, sizeof(_buf));
1195 			if (buf)
1196 				fprintf(f, "sec_device_type=%s\n", buf);
1197 		}
1198 	}
1199 	if (config->p2p_listen_reg_class)
1200 		fprintf(f, "p2p_listen_reg_class=%d\n",
1201 			config->p2p_listen_reg_class);
1202 	if (config->p2p_listen_channel)
1203 		fprintf(f, "p2p_listen_channel=%d\n",
1204 			config->p2p_listen_channel);
1205 	if (config->p2p_oper_reg_class)
1206 		fprintf(f, "p2p_oper_reg_class=%d\n",
1207 			config->p2p_oper_reg_class);
1208 	if (config->p2p_oper_channel)
1209 		fprintf(f, "p2p_oper_channel=%d\n", config->p2p_oper_channel);
1210 	if (config->p2p_go_intent != DEFAULT_P2P_GO_INTENT)
1211 		fprintf(f, "p2p_go_intent=%d\n", config->p2p_go_intent);
1212 	if (config->p2p_ssid_postfix)
1213 		fprintf(f, "p2p_ssid_postfix=%s\n", config->p2p_ssid_postfix);
1214 	if (config->persistent_reconnect)
1215 		fprintf(f, "persistent_reconnect=%d\n",
1216 			config->persistent_reconnect);
1217 	if (config->p2p_intra_bss != DEFAULT_P2P_INTRA_BSS)
1218 		fprintf(f, "p2p_intra_bss=%d\n", config->p2p_intra_bss);
1219 	if (config->p2p_group_idle)
1220 		fprintf(f, "p2p_group_idle=%d\n", config->p2p_group_idle);
1221 	if (config->p2p_passphrase_len)
1222 		fprintf(f, "p2p_passphrase_len=%u\n",
1223 			config->p2p_passphrase_len);
1224 	if (config->p2p_pref_chan) {
1225 		unsigned int i;
1226 		fprintf(f, "p2p_pref_chan=");
1227 		for (i = 0; i < config->num_p2p_pref_chan; i++) {
1228 			fprintf(f, "%s%u:%u", i > 0 ? "," : "",
1229 				config->p2p_pref_chan[i].op_class,
1230 				config->p2p_pref_chan[i].chan);
1231 		}
1232 		fprintf(f, "\n");
1233 	}
1234 	if (config->p2p_no_go_freq.num) {
1235 		char *val = freq_range_list_str(&config->p2p_no_go_freq);
1236 		if (val) {
1237 			fprintf(f, "p2p_no_go_freq=%s\n", val);
1238 			os_free(val);
1239 		}
1240 	}
1241 	if (config->p2p_add_cli_chan)
1242 		fprintf(f, "p2p_add_cli_chan=%d\n", config->p2p_add_cli_chan);
1243 	if (config->p2p_optimize_listen_chan !=
1244 	    DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN)
1245 		fprintf(f, "p2p_optimize_listen_chan=%d\n",
1246 			config->p2p_optimize_listen_chan);
1247 	if (config->p2p_go_ht40)
1248 		fprintf(f, "p2p_go_ht40=%d\n", config->p2p_go_ht40);
1249 	if (config->p2p_go_vht)
1250 		fprintf(f, "p2p_go_vht=%d\n", config->p2p_go_vht);
1251 	if (config->p2p_go_ctwindow != DEFAULT_P2P_GO_CTWINDOW)
1252 		fprintf(f, "p2p_go_ctwindow=%d\n", config->p2p_go_ctwindow);
1253 	if (config->p2p_disabled)
1254 		fprintf(f, "p2p_disabled=%d\n", config->p2p_disabled);
1255 	if (config->p2p_no_group_iface)
1256 		fprintf(f, "p2p_no_group_iface=%d\n",
1257 			config->p2p_no_group_iface);
1258 	if (config->p2p_ignore_shared_freq)
1259 		fprintf(f, "p2p_ignore_shared_freq=%d\n",
1260 			config->p2p_ignore_shared_freq);
1261 	if (config->p2p_cli_probe)
1262 		fprintf(f, "p2p_cli_probe=%d\n", config->p2p_cli_probe);
1263 	if (config->p2p_go_freq_change_policy != DEFAULT_P2P_GO_FREQ_MOVE)
1264 		fprintf(f, "p2p_go_freq_change_policy=%u\n",
1265 			config->p2p_go_freq_change_policy);
1266 	if (WPA_GET_BE32(config->ip_addr_go))
1267 		fprintf(f, "ip_addr_go=%u.%u.%u.%u\n",
1268 			config->ip_addr_go[0], config->ip_addr_go[1],
1269 			config->ip_addr_go[2], config->ip_addr_go[3]);
1270 	if (WPA_GET_BE32(config->ip_addr_mask))
1271 		fprintf(f, "ip_addr_mask=%u.%u.%u.%u\n",
1272 			config->ip_addr_mask[0], config->ip_addr_mask[1],
1273 			config->ip_addr_mask[2], config->ip_addr_mask[3]);
1274 	if (WPA_GET_BE32(config->ip_addr_start))
1275 		fprintf(f, "ip_addr_start=%u.%u.%u.%u\n",
1276 			config->ip_addr_start[0], config->ip_addr_start[1],
1277 			config->ip_addr_start[2], config->ip_addr_start[3]);
1278 	if (WPA_GET_BE32(config->ip_addr_end))
1279 		fprintf(f, "ip_addr_end=%u.%u.%u.%u\n",
1280 			config->ip_addr_end[0], config->ip_addr_end[1],
1281 			config->ip_addr_end[2], config->ip_addr_end[3]);
1282 #endif /* CONFIG_P2P */
1283 	if (config->country[0] && config->country[1]) {
1284 		fprintf(f, "country=%c%c\n",
1285 			config->country[0], config->country[1]);
1286 	}
1287 	if (config->bss_max_count != DEFAULT_BSS_MAX_COUNT)
1288 		fprintf(f, "bss_max_count=%u\n", config->bss_max_count);
1289 	if (config->bss_expiration_age != DEFAULT_BSS_EXPIRATION_AGE)
1290 		fprintf(f, "bss_expiration_age=%u\n",
1291 			config->bss_expiration_age);
1292 	if (config->bss_expiration_scan_count !=
1293 	    DEFAULT_BSS_EXPIRATION_SCAN_COUNT)
1294 		fprintf(f, "bss_expiration_scan_count=%u\n",
1295 			config->bss_expiration_scan_count);
1296 	if (config->filter_ssids)
1297 		fprintf(f, "filter_ssids=%d\n", config->filter_ssids);
1298 	if (config->filter_rssi)
1299 		fprintf(f, "filter_rssi=%d\n", config->filter_rssi);
1300 	if (config->max_num_sta != DEFAULT_MAX_NUM_STA)
1301 		fprintf(f, "max_num_sta=%u\n", config->max_num_sta);
1302 	if (config->ap_isolate != DEFAULT_AP_ISOLATE)
1303 		fprintf(f, "ap_isolate=%u\n", config->ap_isolate);
1304 	if (config->disassoc_low_ack)
1305 		fprintf(f, "disassoc_low_ack=%d\n", config->disassoc_low_ack);
1306 #ifdef CONFIG_HS20
1307 	if (config->hs20)
1308 		fprintf(f, "hs20=1\n");
1309 #endif /* CONFIG_HS20 */
1310 #ifdef CONFIG_INTERWORKING
1311 	if (config->interworking)
1312 		fprintf(f, "interworking=%d\n", config->interworking);
1313 	if (!is_zero_ether_addr(config->hessid))
1314 		fprintf(f, "hessid=" MACSTR "\n", MAC2STR(config->hessid));
1315 	if (config->access_network_type != DEFAULT_ACCESS_NETWORK_TYPE)
1316 		fprintf(f, "access_network_type=%d\n",
1317 			config->access_network_type);
1318 	if (config->go_interworking)
1319 		fprintf(f, "go_interworking=%d\n", config->go_interworking);
1320 	if (config->go_access_network_type)
1321 		fprintf(f, "go_access_network_type=%d\n",
1322 			config->go_access_network_type);
1323 	if (config->go_internet)
1324 		fprintf(f, "go_internet=%d\n", config->go_internet);
1325 	if (config->go_venue_group)
1326 		fprintf(f, "go_venue_group=%d\n", config->go_venue_group);
1327 	if (config->go_venue_type)
1328 		fprintf(f, "go_venue_type=%d\n", config->go_venue_type);
1329 #endif /* CONFIG_INTERWORKING */
1330 	if (config->pbc_in_m1)
1331 		fprintf(f, "pbc_in_m1=%d\n", config->pbc_in_m1);
1332 	if (config->wps_nfc_pw_from_config) {
1333 		if (config->wps_nfc_dev_pw_id)
1334 			fprintf(f, "wps_nfc_dev_pw_id=%d\n",
1335 				config->wps_nfc_dev_pw_id);
1336 		write_global_bin(f, "wps_nfc_dh_pubkey",
1337 				 config->wps_nfc_dh_pubkey);
1338 		write_global_bin(f, "wps_nfc_dh_privkey",
1339 				 config->wps_nfc_dh_privkey);
1340 		write_global_bin(f, "wps_nfc_dev_pw", config->wps_nfc_dev_pw);
1341 	}
1342 
1343 	if (config->ext_password_backend)
1344 		fprintf(f, "ext_password_backend=%s\n",
1345 			config->ext_password_backend);
1346 	if (config->p2p_go_max_inactivity != DEFAULT_P2P_GO_MAX_INACTIVITY)
1347 		fprintf(f, "p2p_go_max_inactivity=%d\n",
1348 			config->p2p_go_max_inactivity);
1349 	if (config->auto_interworking)
1350 		fprintf(f, "auto_interworking=%d\n",
1351 			config->auto_interworking);
1352 	if (config->okc)
1353 		fprintf(f, "okc=%d\n", config->okc);
1354 	if (config->pmf)
1355 		fprintf(f, "pmf=%d\n", config->pmf);
1356 	if (config->dtim_period)
1357 		fprintf(f, "dtim_period=%d\n", config->dtim_period);
1358 	if (config->beacon_int)
1359 		fprintf(f, "beacon_int=%d\n", config->beacon_int);
1360 
1361 	if (config->sae_groups) {
1362 		int i;
1363 		fprintf(f, "sae_groups=");
1364 		for (i = 0; config->sae_groups[i] > 0; i++) {
1365 			fprintf(f, "%s%d", i > 0 ? " " : "",
1366 				config->sae_groups[i]);
1367 		}
1368 		fprintf(f, "\n");
1369 	}
1370 
1371 	if (config->ap_vendor_elements) {
1372 		int i, len = wpabuf_len(config->ap_vendor_elements);
1373 		const u8 *p = wpabuf_head_u8(config->ap_vendor_elements);
1374 		if (len > 0) {
1375 			fprintf(f, "ap_vendor_elements=");
1376 			for (i = 0; i < len; i++)
1377 				fprintf(f, "%02x", *p++);
1378 			fprintf(f, "\n");
1379 		}
1380 	}
1381 
1382 	if (config->ignore_old_scan_res)
1383 		fprintf(f, "ignore_old_scan_res=%d\n",
1384 			config->ignore_old_scan_res);
1385 
1386 	if (config->freq_list && config->freq_list[0]) {
1387 		int i;
1388 		fprintf(f, "freq_list=");
1389 		for (i = 0; config->freq_list[i]; i++) {
1390 			fprintf(f, "%s%d", i > 0 ? " " : "",
1391 				config->freq_list[i]);
1392 		}
1393 		fprintf(f, "\n");
1394 	}
1395 	if (config->scan_cur_freq != DEFAULT_SCAN_CUR_FREQ)
1396 		fprintf(f, "scan_cur_freq=%d\n", config->scan_cur_freq);
1397 
1398 	if (config->sched_scan_interval)
1399 		fprintf(f, "sched_scan_interval=%u\n",
1400 			config->sched_scan_interval);
1401 
1402 	if (config->sched_scan_start_delay)
1403 		fprintf(f, "sched_scan_start_delay=%u\n",
1404 			config->sched_scan_start_delay);
1405 
1406 	if (config->external_sim)
1407 		fprintf(f, "external_sim=%d\n", config->external_sim);
1408 
1409 	if (config->tdls_external_control)
1410 		fprintf(f, "tdls_external_control=%d\n",
1411 			config->tdls_external_control);
1412 
1413 	if (config->wowlan_triggers)
1414 		fprintf(f, "wowlan_triggers=%s\n",
1415 			config->wowlan_triggers);
1416 
1417 	if (config->bgscan)
1418 		fprintf(f, "bgscan=\"%s\"\n", config->bgscan);
1419 
1420 	if (config->autoscan)
1421 		fprintf(f, "autoscan=%s\n", config->autoscan);
1422 
1423 	if (config->p2p_search_delay != DEFAULT_P2P_SEARCH_DELAY)
1424 		fprintf(f, "p2p_search_delay=%u\n",
1425 			config->p2p_search_delay);
1426 
1427 	if (config->mac_addr)
1428 		fprintf(f, "mac_addr=%d\n", config->mac_addr);
1429 
1430 	if (config->rand_addr_lifetime != DEFAULT_RAND_ADDR_LIFETIME)
1431 		fprintf(f, "rand_addr_lifetime=%u\n",
1432 			config->rand_addr_lifetime);
1433 
1434 	if (config->preassoc_mac_addr)
1435 		fprintf(f, "preassoc_mac_addr=%d\n", config->preassoc_mac_addr);
1436 
1437 	if (config->key_mgmt_offload != DEFAULT_KEY_MGMT_OFFLOAD)
1438 		fprintf(f, "key_mgmt_offload=%d\n", config->key_mgmt_offload);
1439 
1440 	if (config->user_mpm != DEFAULT_USER_MPM)
1441 		fprintf(f, "user_mpm=%d\n", config->user_mpm);
1442 
1443 	if (config->max_peer_links != DEFAULT_MAX_PEER_LINKS)
1444 		fprintf(f, "max_peer_links=%d\n", config->max_peer_links);
1445 
1446 	if (config->cert_in_cb != DEFAULT_CERT_IN_CB)
1447 		fprintf(f, "cert_in_cb=%d\n", config->cert_in_cb);
1448 
1449 	if (config->mesh_max_inactivity != DEFAULT_MESH_MAX_INACTIVITY)
1450 		fprintf(f, "mesh_max_inactivity=%d\n",
1451 			config->mesh_max_inactivity);
1452 
1453 	if (config->dot11RSNASAERetransPeriod !=
1454 	    DEFAULT_DOT11_RSNA_SAE_RETRANS_PERIOD)
1455 		fprintf(f, "dot11RSNASAERetransPeriod=%d\n",
1456 			config->dot11RSNASAERetransPeriod);
1457 
1458 	if (config->passive_scan)
1459 		fprintf(f, "passive_scan=%d\n", config->passive_scan);
1460 
1461 	if (config->reassoc_same_bss_optim)
1462 		fprintf(f, "reassoc_same_bss_optim=%d\n",
1463 			config->reassoc_same_bss_optim);
1464 
1465 	if (config->wps_priority)
1466 		fprintf(f, "wps_priority=%d\n", config->wps_priority);
1467 
1468 	if (config->wpa_rsc_relaxation != DEFAULT_WPA_RSC_RELAXATION)
1469 		fprintf(f, "wpa_rsc_relaxation=%d\n",
1470 			config->wpa_rsc_relaxation);
1471 
1472 	if (config->sched_scan_plans)
1473 		fprintf(f, "sched_scan_plans=%s\n", config->sched_scan_plans);
1474 
1475 #ifdef CONFIG_MBO
1476 	if (config->non_pref_chan)
1477 		fprintf(f, "non_pref_chan=%s\n", config->non_pref_chan);
1478 	if (config->mbo_cell_capa != DEFAULT_MBO_CELL_CAPA)
1479 		fprintf(f, "mbo_cell_capa=%u\n", config->mbo_cell_capa);
1480 	if (config->disassoc_imminent_rssi_threshold !=
1481 	    DEFAULT_DISASSOC_IMMINENT_RSSI_THRESHOLD)
1482 		fprintf(f, "disassoc_imminent_rssi_threshold=%d\n",
1483 			config->disassoc_imminent_rssi_threshold);
1484 	if (config->oce != DEFAULT_OCE_SUPPORT)
1485 		fprintf(f, "oce=%u\n", config->oce);
1486 #endif /* CONFIG_MBO */
1487 
1488 	if (config->gas_address3)
1489 		fprintf(f, "gas_address3=%d\n", config->gas_address3);
1490 
1491 	if (config->ftm_responder)
1492 		fprintf(f, "ftm_responder=%d\n", config->ftm_responder);
1493 	if (config->ftm_initiator)
1494 		fprintf(f, "ftm_initiator=%d\n", config->ftm_initiator);
1495 
1496 	if (config->osu_dir)
1497 		fprintf(f, "osu_dir=%s\n", config->osu_dir);
1498 
1499 	if (config->fst_group_id)
1500 		fprintf(f, "fst_group_id=%s\n", config->fst_group_id);
1501 	if (config->fst_priority)
1502 		fprintf(f, "fst_priority=%d\n", config->fst_priority);
1503 	if (config->fst_llt)
1504 		fprintf(f, "fst_llt=%d\n", config->fst_llt);
1505 
1506 	if (config->gas_rand_addr_lifetime != DEFAULT_RAND_ADDR_LIFETIME)
1507 		fprintf(f, "gas_rand_addr_lifetime=%u\n",
1508 			config->gas_rand_addr_lifetime);
1509 	if (config->gas_rand_mac_addr)
1510 		fprintf(f, "gas_rand_mac_addr=%d\n", config->gas_rand_mac_addr);
1511 	if (config->dpp_config_processing)
1512 		fprintf(f, "dpp_config_processing=%d\n",
1513 			config->dpp_config_processing);
1514 	if (config->coloc_intf_reporting)
1515 		fprintf(f, "coloc_intf_reporting=%d\n",
1516 			config->coloc_intf_reporting);
1517 }
1518 
1519 #endif /* CONFIG_NO_CONFIG_WRITE */
1520 
1521 
1522 int wpa_config_write(const char *name, struct wpa_config *config)
1523 {
1524 #ifndef CONFIG_NO_CONFIG_WRITE
1525 	FILE *f;
1526 	struct wpa_ssid *ssid;
1527 	struct wpa_cred *cred;
1528 #ifndef CONFIG_NO_CONFIG_BLOBS
1529 	struct wpa_config_blob *blob;
1530 #endif /* CONFIG_NO_CONFIG_BLOBS */
1531 	int ret = 0;
1532 	const char *orig_name = name;
1533 	int tmp_len = os_strlen(name) + 5; /* allow space for .tmp suffix */
1534 	char *tmp_name = os_malloc(tmp_len);
1535 
1536 	if (tmp_name) {
1537 		os_snprintf(tmp_name, tmp_len, "%s.tmp", name);
1538 		name = tmp_name;
1539 	}
1540 
1541 	wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name);
1542 
1543 	f = fopen(name, "w");
1544 	if (f == NULL) {
1545 		wpa_printf(MSG_DEBUG, "Failed to open '%s' for writing", name);
1546 		os_free(tmp_name);
1547 		return -1;
1548 	}
1549 
1550 	wpa_config_write_global(f, config);
1551 
1552 	for (cred = config->cred; cred; cred = cred->next) {
1553 		if (cred->temporary)
1554 			continue;
1555 		fprintf(f, "\ncred={\n");
1556 		wpa_config_write_cred(f, cred);
1557 		fprintf(f, "}\n");
1558 	}
1559 
1560 	for (ssid = config->ssid; ssid; ssid = ssid->next) {
1561 		if (ssid->key_mgmt == WPA_KEY_MGMT_WPS || ssid->temporary)
1562 			continue; /* do not save temporary networks */
1563 		if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
1564 		    !ssid->passphrase)
1565 			continue; /* do not save invalid network */
1566 		fprintf(f, "\nnetwork={\n");
1567 		wpa_config_write_network(f, ssid);
1568 		fprintf(f, "}\n");
1569 	}
1570 
1571 #ifndef CONFIG_NO_CONFIG_BLOBS
1572 	for (blob = config->blobs; blob; blob = blob->next) {
1573 		ret = wpa_config_write_blob(f, blob);
1574 		if (ret)
1575 			break;
1576 	}
1577 #endif /* CONFIG_NO_CONFIG_BLOBS */
1578 
1579 	os_fdatasync(f);
1580 
1581 	fclose(f);
1582 
1583 	if (tmp_name) {
1584 		int chmod_ret = 0;
1585 
1586 #ifdef ANDROID
1587 		chmod_ret = chmod(tmp_name,
1588 				  S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
1589 #endif /* ANDROID */
1590 		if (chmod_ret != 0 || rename(tmp_name, orig_name) != 0)
1591 			ret = -1;
1592 
1593 		os_free(tmp_name);
1594 	}
1595 
1596 	wpa_printf(MSG_DEBUG, "Configuration file '%s' written %ssuccessfully",
1597 		   orig_name, ret ? "un" : "");
1598 	return ret;
1599 #else /* CONFIG_NO_CONFIG_WRITE */
1600 	return -1;
1601 #endif /* CONFIG_NO_CONFIG_WRITE */
1602 }
1603