config_file.c revision 337817 
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 "p2p/p2p.h"
23#include "eap_peer/eap_methods.h"
24#include "eap_peer/eap.h"
25
26
27static int newline_terminated(const char *buf, size_t buflen)
28{
29	size_t len = os_strlen(buf);
30	if (len == 0)
31		return 0;
32	if (len == buflen - 1 && buf[buflen - 1] != '\r' &&
33	    buf[len - 1] != '\n')
34		return 0;
35	return 1;
36}
37
38
39static void skip_line_end(FILE *stream)
40{
41	char buf[100];
42	while (fgets(buf, sizeof(buf), stream)) {
43		buf[sizeof(buf) - 1] = '\0';
44		if (newline_terminated(buf, sizeof(buf)))
45			return;
46	}
47}
48
49
50/**
51 * wpa_config_get_line - Read the next configuration file line
52 * @s: Buffer for the line
53 * @size: The buffer length
54 * @stream: File stream to read from
55 * @line: Pointer to a variable storing the file line number
56 * @_pos: Buffer for the pointer to the beginning of data on the text line or
57 * %NULL if not needed (returned value used instead)
58 * Returns: Pointer to the beginning of data on the text line or %NULL if no
59 * more text lines are available.
60 *
61 * This function reads the next non-empty line from the configuration file and
62 * removes comments. The returned string is guaranteed to be null-terminated.
63 */
64static char * wpa_config_get_line(char *s, int size, FILE *stream, int *line,
65				  char **_pos)
66{
67	char *pos, *end, *sstart;
68
69	while (fgets(s, size, stream)) {
70		(*line)++;
71		s[size - 1] = '\0';
72		if (!newline_terminated(s, size)) {
73			/*
74			 * The line was truncated - skip rest of it to avoid
75			 * confusing error messages.
76			 */
77			wpa_printf(MSG_INFO, "Long line in configuration file "
78				   "truncated");
79			skip_line_end(stream);
80		}
81		pos = s;
82
83		/* Skip white space from the beginning of line. */
84		while (*pos == ' ' || *pos == '\t' || *pos == '\r')
85			pos++;
86
87		/* Skip comment lines and empty lines */
88		if (*pos == '#' || *pos == '\n' || *pos == '\0')
89			continue;
90
91		/*
92		 * Remove # comments unless they are within a double quoted
93		 * string.
94		 */
95		sstart = os_strchr(pos, '"');
96		if (sstart)
97			sstart = os_strrchr(sstart + 1, '"');
98		if (!sstart)
99			sstart = pos;
100		end = os_strchr(sstart, '#');
101		if (end)
102			*end-- = '\0';
103		else
104			end = pos + os_strlen(pos) - 1;
105
106		/* Remove trailing white space. */
107		while (end > pos &&
108		       (*end == '\n' || *end == ' ' || *end == '\t' ||
109			*end == '\r'))
110			*end-- = '\0';
111
112		if (*pos == '\0')
113			continue;
114
115		if (_pos)
116			*_pos = pos;
117		return pos;
118	}
119
120	if (_pos)
121		*_pos = NULL;
122	return NULL;
123}
124
125
126static int wpa_config_validate_network(struct wpa_ssid *ssid, int line)
127{
128	int errors = 0;
129
130	if (ssid->passphrase) {
131		if (ssid->psk_set) {
132			wpa_printf(MSG_ERROR, "Line %d: both PSK and "
133				   "passphrase configured.", line);
134			errors++;
135		}
136		wpa_config_update_psk(ssid);
137	}
138
139	if ((ssid->group_cipher & WPA_CIPHER_CCMP) &&
140	    !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
141	    !(ssid->pairwise_cipher & WPA_CIPHER_NONE)) {
142		/* Group cipher cannot be stronger than the pairwise cipher. */
143		wpa_printf(MSG_DEBUG, "Line %d: removed CCMP from group cipher"
144			   " list since it was not allowed for pairwise "
145			   "cipher", line);
146		ssid->group_cipher &= ~WPA_CIPHER_CCMP;
147	}
148
149	if (ssid->mode == WPAS_MODE_MESH &&
150	    (ssid->key_mgmt != WPA_KEY_MGMT_NONE &&
151	    ssid->key_mgmt != WPA_KEY_MGMT_SAE)) {
152		wpa_printf(MSG_ERROR,
153			   "Line %d: key_mgmt for mesh network should be open or SAE",
154			   line);
155		errors++;
156	}
157
158	return errors;
159}
160
161
162static struct wpa_ssid * wpa_config_read_network(FILE *f, int *line, int id)
163{
164	struct wpa_ssid *ssid;
165	int errors = 0, end = 0;
166	char buf[2000], *pos, *pos2;
167
168	wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new network block",
169		   *line);
170	ssid = os_zalloc(sizeof(*ssid));
171	if (ssid == NULL)
172		return NULL;
173	dl_list_init(&ssid->psk_list);
174	ssid->id = id;
175
176	wpa_config_set_network_defaults(ssid);
177
178	while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
179		if (os_strcmp(pos, "}") == 0) {
180			end = 1;
181			break;
182		}
183
184		pos2 = os_strchr(pos, '=');
185		if (pos2 == NULL) {
186			wpa_printf(MSG_ERROR, "Line %d: Invalid SSID line "
187				   "'%s'.", *line, pos);
188			errors++;
189			continue;
190		}
191
192		*pos2++ = '\0';
193		if (*pos2 == '"') {
194			if (os_strchr(pos2 + 1, '"') == NULL) {
195				wpa_printf(MSG_ERROR, "Line %d: invalid "
196					   "quotation '%s'.", *line, pos2);
197				errors++;
198				continue;
199			}
200		}
201
202		if (wpa_config_set(ssid, pos, pos2, *line) < 0)
203			errors++;
204	}
205
206	if (!end) {
207		wpa_printf(MSG_ERROR, "Line %d: network block was not "
208			   "terminated properly.", *line);
209		errors++;
210	}
211
212	errors += wpa_config_validate_network(ssid, *line);
213
214	if (errors) {
215		wpa_config_free_ssid(ssid);
216		ssid = NULL;
217	}
218
219	return ssid;
220}
221
222
223static struct wpa_cred * wpa_config_read_cred(FILE *f, int *line, int id)
224{
225	struct wpa_cred *cred;
226	int errors = 0, end = 0;
227	char buf[256], *pos, *pos2;
228
229	wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new cred block", *line);
230	cred = os_zalloc(sizeof(*cred));
231	if (cred == NULL)
232		return NULL;
233	cred->id = id;
234	cred->sim_num = DEFAULT_USER_SELECTED_SIM;
235
236	while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
237		if (os_strcmp(pos, "}") == 0) {
238			end = 1;
239			break;
240		}
241
242		pos2 = os_strchr(pos, '=');
243		if (pos2 == NULL) {
244			wpa_printf(MSG_ERROR, "Line %d: Invalid cred line "
245				   "'%s'.", *line, pos);
246			errors++;
247			continue;
248		}
249
250		*pos2++ = '\0';
251		if (*pos2 == '"') {
252			if (os_strchr(pos2 + 1, '"') == NULL) {
253				wpa_printf(MSG_ERROR, "Line %d: invalid "
254					   "quotation '%s'.", *line, pos2);
255				errors++;
256				continue;
257			}
258		}
259
260		if (wpa_config_set_cred(cred, pos, pos2, *line) < 0)
261			errors++;
262	}
263
264	if (!end) {
265		wpa_printf(MSG_ERROR, "Line %d: cred block was not "
266			   "terminated properly.", *line);
267		errors++;
268	}
269
270	if (errors) {
271		wpa_config_free_cred(cred);
272		cred = NULL;
273	}
274
275	return cred;
276}
277
278
279#ifndef CONFIG_NO_CONFIG_BLOBS
280static struct wpa_config_blob * wpa_config_read_blob(FILE *f, int *line,
281						     const char *name)
282{
283	struct wpa_config_blob *blob;
284	char buf[256], *pos;
285	unsigned char *encoded = NULL, *nencoded;
286	int end = 0;
287	size_t encoded_len = 0, len;
288
289	wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new named blob '%s'",
290		   *line, name);
291
292	while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
293		if (os_strcmp(pos, "}") == 0) {
294			end = 1;
295			break;
296		}
297
298		len = os_strlen(pos);
299		nencoded = os_realloc(encoded, encoded_len + len);
300		if (nencoded == NULL) {
301			wpa_printf(MSG_ERROR, "Line %d: not enough memory for "
302				   "blob", *line);
303			os_free(encoded);
304			return NULL;
305		}
306		encoded = nencoded;
307		os_memcpy(encoded + encoded_len, pos, len);
308		encoded_len += len;
309	}
310
311	if (!end) {
312		wpa_printf(MSG_ERROR, "Line %d: blob was not terminated "
313			   "properly", *line);
314		os_free(encoded);
315		return NULL;
316	}
317
318	blob = os_zalloc(sizeof(*blob));
319	if (blob == NULL) {
320		os_free(encoded);
321		return NULL;
322	}
323	blob->name = os_strdup(name);
324	blob->data = base64_decode(encoded, encoded_len, &blob->len);
325	os_free(encoded);
326
327	if (blob->name == NULL || blob->data == NULL) {
328		wpa_config_free_blob(blob);
329		return NULL;
330	}
331
332	return blob;
333}
334
335
336static int wpa_config_process_blob(struct wpa_config *config, FILE *f,
337				   int *line, char *bname)
338{
339	char *name_end;
340	struct wpa_config_blob *blob;
341
342	name_end = os_strchr(bname, '=');
343	if (name_end == NULL) {
344		wpa_printf(MSG_ERROR, "Line %d: no blob name terminator",
345			   *line);
346		return -1;
347	}
348	*name_end = '\0';
349
350	blob = wpa_config_read_blob(f, line, bname);
351	if (blob == NULL) {
352		wpa_printf(MSG_ERROR, "Line %d: failed to read blob %s",
353			   *line, bname);
354		return -1;
355	}
356	wpa_config_set_blob(config, blob);
357	return 0;
358}
359#endif /* CONFIG_NO_CONFIG_BLOBS */
360
361
362struct wpa_config * wpa_config_read(const char *name, struct wpa_config *cfgp)
363{
364	FILE *f;
365	char buf[512], *pos;
366	int errors = 0, line = 0;
367	struct wpa_ssid *ssid, *tail, *head;
368	struct wpa_cred *cred, *cred_tail, *cred_head;
369	struct wpa_config *config;
370	int id = 0;
371	int cred_id = 0;
372
373	if (name == NULL)
374		return NULL;
375	if (cfgp)
376		config = cfgp;
377	else
378		config = wpa_config_alloc_empty(NULL, NULL);
379	if (config == NULL) {
380		wpa_printf(MSG_ERROR, "Failed to allocate config file "
381			   "structure");
382		return NULL;
383	}
384	tail = head = config->ssid;
385	while (tail && tail->next)
386		tail = tail->next;
387	cred_tail = cred_head = config->cred;
388	while (cred_tail && cred_tail->next)
389		cred_tail = cred_tail->next;
390
391	wpa_printf(MSG_DEBUG, "Reading configuration file '%s'", name);
392	f = fopen(name, "r");
393	if (f == NULL) {
394		wpa_printf(MSG_ERROR, "Failed to open config file '%s', "
395			   "error: %s", name, strerror(errno));
396		os_free(config);
397		return NULL;
398	}
399
400	while (wpa_config_get_line(buf, sizeof(buf), f, &line, &pos)) {
401		if (os_strcmp(pos, "network={") == 0) {
402			ssid = wpa_config_read_network(f, &line, id++);
403			if (ssid == NULL) {
404				wpa_printf(MSG_ERROR, "Line %d: failed to "
405					   "parse network block.", line);
406				errors++;
407				continue;
408			}
409			if (head == NULL) {
410				head = tail = ssid;
411			} else {
412				tail->next = ssid;
413				tail = ssid;
414			}
415			if (wpa_config_add_prio_network(config, ssid)) {
416				wpa_printf(MSG_ERROR, "Line %d: failed to add "
417					   "network block to priority list.",
418					   line);
419				errors++;
420				continue;
421			}
422		} else if (os_strcmp(pos, "cred={") == 0) {
423			cred = wpa_config_read_cred(f, &line, cred_id++);
424			if (cred == NULL) {
425				wpa_printf(MSG_ERROR, "Line %d: failed to "
426					   "parse cred block.", line);
427				errors++;
428				continue;
429			}
430			if (cred_head == NULL) {
431				cred_head = cred_tail = cred;
432			} else {
433				cred_tail->next = cred;
434				cred_tail = cred;
435			}
436#ifndef CONFIG_NO_CONFIG_BLOBS
437		} else if (os_strncmp(pos, "blob-base64-", 12) == 0) {
438			if (wpa_config_process_blob(config, f, &line, pos + 12)
439			    < 0) {
440				wpa_printf(MSG_ERROR, "Line %d: failed to "
441					   "process blob.", line);
442				errors++;
443				continue;
444			}
445#endif /* CONFIG_NO_CONFIG_BLOBS */
446		} else if (wpa_config_process_global(config, pos, line) < 0) {
447			wpa_printf(MSG_ERROR, "Line %d: Invalid configuration "
448				   "line '%s'.", line, pos);
449			errors++;
450			continue;
451		}
452	}
453
454	fclose(f);
455
456	config->ssid = head;
457	wpa_config_debug_dump_networks(config);
458	config->cred = cred_head;
459
460#ifndef WPA_IGNORE_CONFIG_ERRORS
461	if (errors) {
462		wpa_config_free(config);
463		config = NULL;
464		head = NULL;
465	}
466#endif /* WPA_IGNORE_CONFIG_ERRORS */
467
468	return config;
469}
470
471
472#ifndef CONFIG_NO_CONFIG_WRITE
473
474static void write_str(FILE *f, const char *field, struct wpa_ssid *ssid)
475{
476	char *value = wpa_config_get(ssid, field);
477	if (value == NULL)
478		return;
479	fprintf(f, "\t%s=%s\n", field, value);
480	os_free(value);
481}
482
483
484static void write_int(FILE *f, const char *field, int value, int def)
485{
486	if (value == def)
487		return;
488	fprintf(f, "\t%s=%d\n", field, value);
489}
490
491
492static void write_bssid(FILE *f, struct wpa_ssid *ssid)
493{
494	char *value = wpa_config_get(ssid, "bssid");
495	if (value == NULL)
496		return;
497	fprintf(f, "\tbssid=%s\n", value);
498	os_free(value);
499}
500
501
502static void write_psk(FILE *f, struct wpa_ssid *ssid)
503{
504	char *value;
505
506	if (ssid->mem_only_psk)
507		return;
508
509	value = wpa_config_get(ssid, "psk");
510	if (value == NULL)
511		return;
512	fprintf(f, "\tpsk=%s\n", value);
513	os_free(value);
514}
515
516
517static void write_proto(FILE *f, struct wpa_ssid *ssid)
518{
519	char *value;
520
521	if (ssid->proto == DEFAULT_PROTO)
522		return;
523
524	value = wpa_config_get(ssid, "proto");
525	if (value == NULL)
526		return;
527	if (value[0])
528		fprintf(f, "\tproto=%s\n", value);
529	os_free(value);
530}
531
532
533static void write_key_mgmt(FILE *f, struct wpa_ssid *ssid)
534{
535	char *value;
536
537	if (ssid->key_mgmt == DEFAULT_KEY_MGMT)
538		return;
539
540	value = wpa_config_get(ssid, "key_mgmt");
541	if (value == NULL)
542		return;
543	if (value[0])
544		fprintf(f, "\tkey_mgmt=%s\n", value);
545	os_free(value);
546}
547
548
549static void write_pairwise(FILE *f, struct wpa_ssid *ssid)
550{
551	char *value;
552
553	if (ssid->pairwise_cipher == DEFAULT_PAIRWISE)
554		return;
555
556	value = wpa_config_get(ssid, "pairwise");
557	if (value == NULL)
558		return;
559	if (value[0])
560		fprintf(f, "\tpairwise=%s\n", value);
561	os_free(value);
562}
563
564
565static void write_group(FILE *f, struct wpa_ssid *ssid)
566{
567	char *value;
568
569	if (ssid->group_cipher == DEFAULT_GROUP)
570		return;
571
572	value = wpa_config_get(ssid, "group");
573	if (value == NULL)
574		return;
575	if (value[0])
576		fprintf(f, "\tgroup=%s\n", value);
577	os_free(value);
578}
579
580
581static void write_auth_alg(FILE *f, struct wpa_ssid *ssid)
582{
583	char *value;
584
585	if (ssid->auth_alg == 0)
586		return;
587
588	value = wpa_config_get(ssid, "auth_alg");
589	if (value == NULL)
590		return;
591	if (value[0])
592		fprintf(f, "\tauth_alg=%s\n", value);
593	os_free(value);
594}
595
596
597#ifdef IEEE8021X_EAPOL
598static void write_eap(FILE *f, struct wpa_ssid *ssid)
599{
600	char *value;
601
602	value = wpa_config_get(ssid, "eap");
603	if (value == NULL)
604		return;
605
606	if (value[0])
607		fprintf(f, "\teap=%s\n", value);
608	os_free(value);
609}
610#endif /* IEEE8021X_EAPOL */
611
612
613static void write_wep_key(FILE *f, int idx, struct wpa_ssid *ssid)
614{
615	char field[20], *value;
616	int res;
617
618	res = os_snprintf(field, sizeof(field), "wep_key%d", idx);
619	if (os_snprintf_error(sizeof(field), res))
620		return;
621	value = wpa_config_get(ssid, field);
622	if (value) {
623		fprintf(f, "\t%s=%s\n", field, value);
624		os_free(value);
625	}
626}
627
628
629#ifdef CONFIG_P2P
630
631static void write_go_p2p_dev_addr(FILE *f, struct wpa_ssid *ssid)
632{
633	char *value = wpa_config_get(ssid, "go_p2p_dev_addr");
634	if (value == NULL)
635		return;
636	fprintf(f, "\tgo_p2p_dev_addr=%s\n", value);
637	os_free(value);
638}
639
640static void write_p2p_client_list(FILE *f, struct wpa_ssid *ssid)
641{
642	char *value = wpa_config_get(ssid, "p2p_client_list");
643	if (value == NULL)
644		return;
645	fprintf(f, "\tp2p_client_list=%s\n", value);
646	os_free(value);
647}
648
649
650static void write_psk_list(FILE *f, struct wpa_ssid *ssid)
651{
652	struct psk_list_entry *psk;
653	char hex[32 * 2 + 1];
654
655	dl_list_for_each(psk, &ssid->psk_list, struct psk_list_entry, list) {
656		wpa_snprintf_hex(hex, sizeof(hex), psk->psk, sizeof(psk->psk));
657		fprintf(f, "\tpsk_list=%s" MACSTR "-%s\n",
658			psk->p2p ? "P2P-" : "", MAC2STR(psk->addr), hex);
659	}
660}
661
662#endif /* CONFIG_P2P */
663
664
665static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
666{
667	int i;
668
669#define STR(t) write_str(f, #t, ssid)
670#define INT(t) write_int(f, #t, ssid->t, 0)
671#define INTe(t) write_int(f, #t, ssid->eap.t, 0)
672#define INT_DEF(t, def) write_int(f, #t, ssid->t, def)
673#define INT_DEFe(t, def) write_int(f, #t, ssid->eap.t, def)
674
675	STR(ssid);
676	INT(scan_ssid);
677	write_bssid(f, ssid);
678	write_str(f, "bssid_blacklist", ssid);
679	write_str(f, "bssid_whitelist", ssid);
680	write_psk(f, ssid);
681	INT(mem_only_psk);
682	write_proto(f, ssid);
683	write_key_mgmt(f, ssid);
684	INT_DEF(bg_scan_period, DEFAULT_BG_SCAN_PERIOD);
685	write_pairwise(f, ssid);
686	write_group(f, ssid);
687	write_auth_alg(f, ssid);
688	STR(bgscan);
689	STR(autoscan);
690	STR(scan_freq);
691#ifdef IEEE8021X_EAPOL
692	write_eap(f, ssid);
693	STR(identity);
694	STR(anonymous_identity);
695	STR(password);
696	STR(ca_cert);
697	STR(ca_path);
698	STR(client_cert);
699	STR(private_key);
700	STR(private_key_passwd);
701	STR(dh_file);
702	STR(subject_match);
703	STR(altsubject_match);
704	STR(domain_suffix_match);
705	STR(domain_match);
706	STR(ca_cert2);
707	STR(ca_path2);
708	STR(client_cert2);
709	STR(private_key2);
710	STR(private_key2_passwd);
711	STR(dh_file2);
712	STR(subject_match2);
713	STR(altsubject_match2);
714	STR(domain_suffix_match2);
715	STR(domain_match2);
716	STR(phase1);
717	STR(phase2);
718	STR(pcsc);
719	STR(pin);
720	STR(engine_id);
721	STR(key_id);
722	STR(cert_id);
723	STR(ca_cert_id);
724	STR(key2_id);
725	STR(pin2);
726	STR(engine2_id);
727	STR(cert2_id);
728	STR(ca_cert2_id);
729	INTe(engine);
730	INTe(engine2);
731	INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS);
732	STR(openssl_ciphers);
733	INTe(erp);
734#endif /* IEEE8021X_EAPOL */
735	for (i = 0; i < 4; i++)
736		write_wep_key(f, i, ssid);
737	INT(wep_tx_keyidx);
738	INT(priority);
739#ifdef IEEE8021X_EAPOL
740	INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND);
741	STR(pac_file);
742	INT_DEFe(fragment_size, DEFAULT_FRAGMENT_SIZE);
743	INTe(ocsp);
744	INT_DEFe(sim_num, DEFAULT_USER_SELECTED_SIM);
745#endif /* IEEE8021X_EAPOL */
746	INT(mode);
747	INT(no_auto_peer);
748	INT(frequency);
749	INT(fixed_freq);
750#ifdef CONFIG_ACS
751	INT(acs);
752#endif /* CONFIG_ACS */
753	write_int(f, "proactive_key_caching", ssid->proactive_key_caching, -1);
754	INT(disabled);
755	INT(peerkey);
756	INT(mixed_cell);
757	INT(max_oper_chwidth);
758	INT(pbss);
759	INT(wps_disabled);
760#ifdef CONFIG_IEEE80211W
761	write_int(f, "ieee80211w", ssid->ieee80211w,
762		  MGMT_FRAME_PROTECTION_DEFAULT);
763#endif /* CONFIG_IEEE80211W */
764	STR(id_str);
765#ifdef CONFIG_P2P
766	write_go_p2p_dev_addr(f, ssid);
767	write_p2p_client_list(f, ssid);
768	write_psk_list(f, ssid);
769#endif /* CONFIG_P2P */
770	INT(ap_max_inactivity);
771	INT(dtim_period);
772	INT(beacon_int);
773#ifdef CONFIG_MACSEC
774	INT(macsec_policy);
775#endif /* CONFIG_MACSEC */
776#ifdef CONFIG_HS20
777	INT(update_identifier);
778#endif /* CONFIG_HS20 */
779	write_int(f, "mac_addr", ssid->mac_addr, -1);
780#ifdef CONFIG_MESH
781	STR(mesh_basic_rates);
782	INT_DEF(dot11MeshMaxRetries, DEFAULT_MESH_MAX_RETRIES);
783	INT_DEF(dot11MeshRetryTimeout, DEFAULT_MESH_RETRY_TIMEOUT);
784	INT_DEF(dot11MeshConfirmTimeout, DEFAULT_MESH_CONFIRM_TIMEOUT);
785	INT_DEF(dot11MeshHoldingTimeout, DEFAULT_MESH_HOLDING_TIMEOUT);
786#endif /* CONFIG_MESH */
787	INT(wpa_ptk_rekey);
788	INT(group_rekey);
789	INT(ignore_broadcast_ssid);
790#ifdef CONFIG_HT_OVERRIDES
791	INT_DEF(disable_ht, DEFAULT_DISABLE_HT);
792	INT_DEF(disable_ht40, DEFAULT_DISABLE_HT40);
793	INT_DEF(disable_sgi, DEFAULT_DISABLE_SGI);
794	INT_DEF(disable_ldpc, DEFAULT_DISABLE_LDPC);
795	INT(ht40_intolerant);
796	INT_DEF(disable_max_amsdu, DEFAULT_DISABLE_MAX_AMSDU);
797	INT_DEF(ampdu_factor, DEFAULT_AMPDU_FACTOR);
798	INT_DEF(ampdu_density, DEFAULT_AMPDU_DENSITY);
799	STR(ht_mcs);
800#endif /* CONFIG_HT_OVERRIDES */
801#ifdef CONFIG_VHT_OVERRIDES
802	INT(disable_vht);
803	INT(vht_capa);
804	INT(vht_capa_mask);
805	INT_DEF(vht_rx_mcs_nss_1, -1);
806	INT_DEF(vht_rx_mcs_nss_2, -1);
807	INT_DEF(vht_rx_mcs_nss_3, -1);
808	INT_DEF(vht_rx_mcs_nss_4, -1);
809	INT_DEF(vht_rx_mcs_nss_5, -1);
810	INT_DEF(vht_rx_mcs_nss_6, -1);
811	INT_DEF(vht_rx_mcs_nss_7, -1);
812	INT_DEF(vht_rx_mcs_nss_8, -1);
813	INT_DEF(vht_tx_mcs_nss_1, -1);
814	INT_DEF(vht_tx_mcs_nss_2, -1);
815	INT_DEF(vht_tx_mcs_nss_3, -1);
816	INT_DEF(vht_tx_mcs_nss_4, -1);
817	INT_DEF(vht_tx_mcs_nss_5, -1);
818	INT_DEF(vht_tx_mcs_nss_6, -1);
819	INT_DEF(vht_tx_mcs_nss_7, -1);
820	INT_DEF(vht_tx_mcs_nss_8, -1);
821#endif /* CONFIG_VHT_OVERRIDES */
822
823#undef STR
824#undef INT
825#undef INT_DEF
826}
827
828
829static void wpa_config_write_cred(FILE *f, struct wpa_cred *cred)
830{
831	size_t i;
832
833	if (cred->priority)
834		fprintf(f, "\tpriority=%d\n", cred->priority);
835	if (cred->pcsc)
836		fprintf(f, "\tpcsc=%d\n", cred->pcsc);
837	if (cred->realm)
838		fprintf(f, "\trealm=\"%s\"\n", cred->realm);
839	if (cred->username)
840		fprintf(f, "\tusername=\"%s\"\n", cred->username);
841	if (cred->password && cred->ext_password)
842		fprintf(f, "\tpassword=ext:%s\n", cred->password);
843	else if (cred->password)
844		fprintf(f, "\tpassword=\"%s\"\n", cred->password);
845	if (cred->ca_cert)
846		fprintf(f, "\tca_cert=\"%s\"\n", cred->ca_cert);
847	if (cred->client_cert)
848		fprintf(f, "\tclient_cert=\"%s\"\n", cred->client_cert);
849	if (cred->private_key)
850		fprintf(f, "\tprivate_key=\"%s\"\n", cred->private_key);
851	if (cred->private_key_passwd)
852		fprintf(f, "\tprivate_key_passwd=\"%s\"\n",
853			cred->private_key_passwd);
854	if (cred->imsi)
855		fprintf(f, "\timsi=\"%s\"\n", cred->imsi);
856	if (cred->milenage)
857		fprintf(f, "\tmilenage=\"%s\"\n", cred->milenage);
858	for (i = 0; i < cred->num_domain; i++)
859		fprintf(f, "\tdomain=\"%s\"\n", cred->domain[i]);
860	if (cred->domain_suffix_match)
861		fprintf(f, "\tdomain_suffix_match=\"%s\"\n",
862			cred->domain_suffix_match);
863	if (cred->roaming_consortium_len) {
864		fprintf(f, "\troaming_consortium=");
865		for (i = 0; i < cred->roaming_consortium_len; i++)
866			fprintf(f, "%02x", cred->roaming_consortium[i]);
867		fprintf(f, "\n");
868	}
869	if (cred->eap_method) {
870		const char *name;
871		name = eap_get_name(cred->eap_method[0].vendor,
872				    cred->eap_method[0].method);
873		if (name)
874			fprintf(f, "\teap=%s\n", name);
875	}
876	if (cred->phase1)
877		fprintf(f, "\tphase1=\"%s\"\n", cred->phase1);
878	if (cred->phase2)
879		fprintf(f, "\tphase2=\"%s\"\n", cred->phase2);
880	if (cred->excluded_ssid) {
881		size_t j;
882		for (i = 0; i < cred->num_excluded_ssid; i++) {
883			struct excluded_ssid *e = &cred->excluded_ssid[i];
884			fprintf(f, "\texcluded_ssid=");
885			for (j = 0; j < e->ssid_len; j++)
886				fprintf(f, "%02x", e->ssid[j]);
887			fprintf(f, "\n");
888		}
889	}
890	if (cred->roaming_partner) {
891		for (i = 0; i < cred->num_roaming_partner; i++) {
892			struct roaming_partner *p = &cred->roaming_partner[i];
893			fprintf(f, "\troaming_partner=\"%s,%d,%u,%s\"\n",
894				p->fqdn, p->exact_match, p->priority,
895				p->country);
896		}
897	}
898	if (cred->update_identifier)
899		fprintf(f, "\tupdate_identifier=%d\n", cred->update_identifier);
900
901	if (cred->provisioning_sp)
902		fprintf(f, "\tprovisioning_sp=\"%s\"\n", cred->provisioning_sp);
903	if (cred->sp_priority)
904		fprintf(f, "\tsp_priority=%d\n", cred->sp_priority);
905
906	if (cred->min_dl_bandwidth_home)
907		fprintf(f, "\tmin_dl_bandwidth_home=%u\n",
908			cred->min_dl_bandwidth_home);
909	if (cred->min_ul_bandwidth_home)
910		fprintf(f, "\tmin_ul_bandwidth_home=%u\n",
911			cred->min_ul_bandwidth_home);
912	if (cred->min_dl_bandwidth_roaming)
913		fprintf(f, "\tmin_dl_bandwidth_roaming=%u\n",
914			cred->min_dl_bandwidth_roaming);
915	if (cred->min_ul_bandwidth_roaming)
916		fprintf(f, "\tmin_ul_bandwidth_roaming=%u\n",
917			cred->min_ul_bandwidth_roaming);
918
919	if (cred->max_bss_load)
920		fprintf(f, "\tmax_bss_load=%u\n",
921			cred->max_bss_load);
922
923	if (cred->ocsp)
924		fprintf(f, "\tocsp=%d\n", cred->ocsp);
925
926	if (cred->num_req_conn_capab) {
927		for (i = 0; i < cred->num_req_conn_capab; i++) {
928			int *ports;
929
930			fprintf(f, "\treq_conn_capab=%u",
931				cred->req_conn_capab_proto[i]);
932			ports = cred->req_conn_capab_port[i];
933			if (ports) {
934				int j;
935				for (j = 0; ports[j] != -1; j++) {
936					fprintf(f, "%s%d", j > 0 ? "," : ":",
937						ports[j]);
938				}
939			}
940			fprintf(f, "\n");
941		}
942	}
943
944	if (cred->required_roaming_consortium_len) {
945		fprintf(f, "\trequired_roaming_consortium=");
946		for (i = 0; i < cred->required_roaming_consortium_len; i++)
947			fprintf(f, "%02x",
948				cred->required_roaming_consortium[i]);
949		fprintf(f, "\n");
950	}
951
952	if (cred->sim_num != DEFAULT_USER_SELECTED_SIM)
953		fprintf(f, "\tsim_num=%d\n", cred->sim_num);
954}
955
956
957#ifndef CONFIG_NO_CONFIG_BLOBS
958static int wpa_config_write_blob(FILE *f, struct wpa_config_blob *blob)
959{
960	unsigned char *encoded;
961
962	encoded = base64_encode(blob->data, blob->len, NULL);
963	if (encoded == NULL)
964		return -1;
965
966	fprintf(f, "\nblob-base64-%s={\n%s}\n", blob->name, encoded);
967	os_free(encoded);
968	return 0;
969}
970#endif /* CONFIG_NO_CONFIG_BLOBS */
971
972
973static void write_global_bin(FILE *f, const char *field,
974			     const struct wpabuf *val)
975{
976	size_t i;
977	const u8 *pos;
978
979	if (val == NULL)
980		return;
981
982	fprintf(f, "%s=", field);
983	pos = wpabuf_head(val);
984	for (i = 0; i < wpabuf_len(val); i++)
985		fprintf(f, "%02X", *pos++);
986	fprintf(f, "\n");
987}
988
989
990static void wpa_config_write_global(FILE *f, struct wpa_config *config)
991{
992#ifdef CONFIG_CTRL_IFACE
993	if (config->ctrl_interface)
994		fprintf(f, "ctrl_interface=%s\n", config->ctrl_interface);
995	if (config->ctrl_interface_group)
996		fprintf(f, "ctrl_interface_group=%s\n",
997			config->ctrl_interface_group);
998#endif /* CONFIG_CTRL_IFACE */
999	if (config->eapol_version != DEFAULT_EAPOL_VERSION)
1000		fprintf(f, "eapol_version=%d\n", config->eapol_version);
1001	if (config->ap_scan != DEFAULT_AP_SCAN)
1002		fprintf(f, "ap_scan=%d\n", config->ap_scan);
1003	if (config->disable_scan_offload)
1004		fprintf(f, "disable_scan_offload=%d\n",
1005			config->disable_scan_offload);
1006	if (config->fast_reauth != DEFAULT_FAST_REAUTH)
1007		fprintf(f, "fast_reauth=%d\n", config->fast_reauth);
1008	if (config->opensc_engine_path)
1009		fprintf(f, "opensc_engine_path=%s\n",
1010			config->opensc_engine_path);
1011	if (config->pkcs11_engine_path)
1012		fprintf(f, "pkcs11_engine_path=%s\n",
1013			config->pkcs11_engine_path);
1014	if (config->pkcs11_module_path)
1015		fprintf(f, "pkcs11_module_path=%s\n",
1016			config->pkcs11_module_path);
1017	if (config->openssl_ciphers)
1018		fprintf(f, "openssl_ciphers=%s\n", config->openssl_ciphers);
1019	if (config->pcsc_reader)
1020		fprintf(f, "pcsc_reader=%s\n", config->pcsc_reader);
1021	if (config->pcsc_pin)
1022		fprintf(f, "pcsc_pin=%s\n", config->pcsc_pin);
1023	if (config->driver_param)
1024		fprintf(f, "driver_param=%s\n", config->driver_param);
1025	if (config->dot11RSNAConfigPMKLifetime)
1026		fprintf(f, "dot11RSNAConfigPMKLifetime=%u\n",
1027			config->dot11RSNAConfigPMKLifetime);
1028	if (config->dot11RSNAConfigPMKReauthThreshold)
1029		fprintf(f, "dot11RSNAConfigPMKReauthThreshold=%u\n",
1030			config->dot11RSNAConfigPMKReauthThreshold);
1031	if (config->dot11RSNAConfigSATimeout)
1032		fprintf(f, "dot11RSNAConfigSATimeout=%u\n",
1033			config->dot11RSNAConfigSATimeout);
1034	if (config->update_config)
1035		fprintf(f, "update_config=%d\n", config->update_config);
1036#ifdef CONFIG_WPS
1037	if (!is_nil_uuid(config->uuid)) {
1038		char buf[40];
1039		uuid_bin2str(config->uuid, buf, sizeof(buf));
1040		fprintf(f, "uuid=%s\n", buf);
1041	}
1042	if (config->device_name)
1043		fprintf(f, "device_name=%s\n", config->device_name);
1044	if (config->manufacturer)
1045		fprintf(f, "manufacturer=%s\n", config->manufacturer);
1046	if (config->model_name)
1047		fprintf(f, "model_name=%s\n", config->model_name);
1048	if (config->model_number)
1049		fprintf(f, "model_number=%s\n", config->model_number);
1050	if (config->serial_number)
1051		fprintf(f, "serial_number=%s\n", config->serial_number);
1052	{
1053		char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
1054		buf = wps_dev_type_bin2str(config->device_type,
1055					   _buf, sizeof(_buf));
1056		if (os_strcmp(buf, "0-00000000-0") != 0)
1057			fprintf(f, "device_type=%s\n", buf);
1058	}
1059	if (WPA_GET_BE32(config->os_version))
1060		fprintf(f, "os_version=%08x\n",
1061			WPA_GET_BE32(config->os_version));
1062	if (config->config_methods)
1063		fprintf(f, "config_methods=%s\n", config->config_methods);
1064	if (config->wps_cred_processing)
1065		fprintf(f, "wps_cred_processing=%d\n",
1066			config->wps_cred_processing);
1067	if (config->wps_vendor_ext_m1) {
1068		int i, len = wpabuf_len(config->wps_vendor_ext_m1);
1069		const u8 *p = wpabuf_head_u8(config->wps_vendor_ext_m1);
1070		if (len > 0) {
1071			fprintf(f, "wps_vendor_ext_m1=");
1072			for (i = 0; i < len; i++)
1073				fprintf(f, "%02x", *p++);
1074			fprintf(f, "\n");
1075		}
1076	}
1077#endif /* CONFIG_WPS */
1078#ifdef CONFIG_P2P
1079	if (config->p2p_listen_reg_class)
1080		fprintf(f, "p2p_listen_reg_class=%d\n",
1081			config->p2p_listen_reg_class);
1082	if (config->p2p_listen_channel)
1083		fprintf(f, "p2p_listen_channel=%d\n",
1084			config->p2p_listen_channel);
1085	if (config->p2p_oper_reg_class)
1086		fprintf(f, "p2p_oper_reg_class=%d\n",
1087			config->p2p_oper_reg_class);
1088	if (config->p2p_oper_channel)
1089		fprintf(f, "p2p_oper_channel=%d\n", config->p2p_oper_channel);
1090	if (config->p2p_go_intent != DEFAULT_P2P_GO_INTENT)
1091		fprintf(f, "p2p_go_intent=%d\n", config->p2p_go_intent);
1092	if (config->p2p_ssid_postfix)
1093		fprintf(f, "p2p_ssid_postfix=%s\n", config->p2p_ssid_postfix);
1094	if (config->persistent_reconnect)
1095		fprintf(f, "persistent_reconnect=%d\n",
1096			config->persistent_reconnect);
1097	if (config->p2p_intra_bss != DEFAULT_P2P_INTRA_BSS)
1098		fprintf(f, "p2p_intra_bss=%d\n", config->p2p_intra_bss);
1099	if (config->p2p_group_idle)
1100		fprintf(f, "p2p_group_idle=%d\n", config->p2p_group_idle);
1101	if (config->p2p_passphrase_len)
1102		fprintf(f, "p2p_passphrase_len=%u\n",
1103			config->p2p_passphrase_len);
1104	if (config->p2p_pref_chan) {
1105		unsigned int i;
1106		fprintf(f, "p2p_pref_chan=");
1107		for (i = 0; i < config->num_p2p_pref_chan; i++) {
1108			fprintf(f, "%s%u:%u", i > 0 ? "," : "",
1109				config->p2p_pref_chan[i].op_class,
1110				config->p2p_pref_chan[i].chan);
1111		}
1112		fprintf(f, "\n");
1113	}
1114	if (config->p2p_no_go_freq.num) {
1115		char *val = freq_range_list_str(&config->p2p_no_go_freq);
1116		if (val) {
1117			fprintf(f, "p2p_no_go_freq=%s\n", val);
1118			os_free(val);
1119		}
1120	}
1121	if (config->p2p_add_cli_chan)
1122		fprintf(f, "p2p_add_cli_chan=%d\n", config->p2p_add_cli_chan);
1123	if (config->p2p_optimize_listen_chan !=
1124	    DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN)
1125		fprintf(f, "p2p_optimize_listen_chan=%d\n",
1126			config->p2p_optimize_listen_chan);
1127	if (config->p2p_go_ht40)
1128		fprintf(f, "p2p_go_ht40=%d\n", config->p2p_go_ht40);
1129	if (config->p2p_go_vht)
1130		fprintf(f, "p2p_go_vht=%d\n", config->p2p_go_vht);
1131	if (config->p2p_go_ctwindow != DEFAULT_P2P_GO_CTWINDOW)
1132		fprintf(f, "p2p_go_ctwindow=%d\n", config->p2p_go_ctwindow);
1133	if (config->p2p_disabled)
1134		fprintf(f, "p2p_disabled=%d\n", config->p2p_disabled);
1135	if (config->p2p_no_group_iface)
1136		fprintf(f, "p2p_no_group_iface=%d\n",
1137			config->p2p_no_group_iface);
1138	if (config->p2p_ignore_shared_freq)
1139		fprintf(f, "p2p_ignore_shared_freq=%d\n",
1140			config->p2p_ignore_shared_freq);
1141	if (config->p2p_cli_probe)
1142		fprintf(f, "p2p_cli_probe=%d\n", config->p2p_cli_probe);
1143	if (config->p2p_go_freq_change_policy != DEFAULT_P2P_GO_FREQ_MOVE)
1144		fprintf(f, "p2p_go_freq_change_policy=%u\n",
1145			config->p2p_go_freq_change_policy);
1146	if (WPA_GET_BE32(config->ip_addr_go))
1147		fprintf(f, "ip_addr_go=%u.%u.%u.%u\n",
1148			config->ip_addr_go[0], config->ip_addr_go[1],
1149			config->ip_addr_go[2], config->ip_addr_go[3]);
1150	if (WPA_GET_BE32(config->ip_addr_mask))
1151		fprintf(f, "ip_addr_mask=%u.%u.%u.%u\n",
1152			config->ip_addr_mask[0], config->ip_addr_mask[1],
1153			config->ip_addr_mask[2], config->ip_addr_mask[3]);
1154	if (WPA_GET_BE32(config->ip_addr_start))
1155		fprintf(f, "ip_addr_start=%u.%u.%u.%u\n",
1156			config->ip_addr_start[0], config->ip_addr_start[1],
1157			config->ip_addr_start[2], config->ip_addr_start[3]);
1158	if (WPA_GET_BE32(config->ip_addr_end))
1159		fprintf(f, "ip_addr_end=%u.%u.%u.%u\n",
1160			config->ip_addr_end[0], config->ip_addr_end[1],
1161			config->ip_addr_end[2], config->ip_addr_end[3]);
1162#endif /* CONFIG_P2P */
1163	if (config->country[0] && config->country[1]) {
1164		fprintf(f, "country=%c%c\n",
1165			config->country[0], config->country[1]);
1166	}
1167	if (config->bss_max_count != DEFAULT_BSS_MAX_COUNT)
1168		fprintf(f, "bss_max_count=%u\n", config->bss_max_count);
1169	if (config->bss_expiration_age != DEFAULT_BSS_EXPIRATION_AGE)
1170		fprintf(f, "bss_expiration_age=%u\n",
1171			config->bss_expiration_age);
1172	if (config->bss_expiration_scan_count !=
1173	    DEFAULT_BSS_EXPIRATION_SCAN_COUNT)
1174		fprintf(f, "bss_expiration_scan_count=%u\n",
1175			config->bss_expiration_scan_count);
1176	if (config->filter_ssids)
1177		fprintf(f, "filter_ssids=%d\n", config->filter_ssids);
1178	if (config->max_num_sta != DEFAULT_MAX_NUM_STA)
1179		fprintf(f, "max_num_sta=%u\n", config->max_num_sta);
1180	if (config->disassoc_low_ack)
1181		fprintf(f, "disassoc_low_ack=%d\n", config->disassoc_low_ack);
1182#ifdef CONFIG_HS20
1183	if (config->hs20)
1184		fprintf(f, "hs20=1\n");
1185#endif /* CONFIG_HS20 */
1186#ifdef CONFIG_INTERWORKING
1187	if (config->interworking)
1188		fprintf(f, "interworking=%d\n", config->interworking);
1189	if (!is_zero_ether_addr(config->hessid))
1190		fprintf(f, "hessid=" MACSTR "\n", MAC2STR(config->hessid));
1191	if (config->access_network_type != DEFAULT_ACCESS_NETWORK_TYPE)
1192		fprintf(f, "access_network_type=%d\n",
1193			config->access_network_type);
1194#endif /* CONFIG_INTERWORKING */
1195	if (config->pbc_in_m1)
1196		fprintf(f, "pbc_in_m1=%d\n", config->pbc_in_m1);
1197	if (config->wps_nfc_pw_from_config) {
1198		if (config->wps_nfc_dev_pw_id)
1199			fprintf(f, "wps_nfc_dev_pw_id=%d\n",
1200				config->wps_nfc_dev_pw_id);
1201		write_global_bin(f, "wps_nfc_dh_pubkey",
1202				 config->wps_nfc_dh_pubkey);
1203		write_global_bin(f, "wps_nfc_dh_privkey",
1204				 config->wps_nfc_dh_privkey);
1205		write_global_bin(f, "wps_nfc_dev_pw", config->wps_nfc_dev_pw);
1206	}
1207
1208	if (config->ext_password_backend)
1209		fprintf(f, "ext_password_backend=%s\n",
1210			config->ext_password_backend);
1211	if (config->p2p_go_max_inactivity != DEFAULT_P2P_GO_MAX_INACTIVITY)
1212		fprintf(f, "p2p_go_max_inactivity=%d\n",
1213			config->p2p_go_max_inactivity);
1214	if (config->auto_interworking)
1215		fprintf(f, "auto_interworking=%d\n",
1216			config->auto_interworking);
1217	if (config->okc)
1218		fprintf(f, "okc=%d\n", config->okc);
1219	if (config->pmf)
1220		fprintf(f, "pmf=%d\n", config->pmf);
1221	if (config->dtim_period)
1222		fprintf(f, "dtim_period=%d\n", config->dtim_period);
1223	if (config->beacon_int)
1224		fprintf(f, "beacon_int=%d\n", config->beacon_int);
1225
1226	if (config->sae_groups) {
1227		int i;
1228		fprintf(f, "sae_groups=");
1229		for (i = 0; config->sae_groups[i] >= 0; i++) {
1230			fprintf(f, "%s%d", i > 0 ? " " : "",
1231				config->sae_groups[i]);
1232		}
1233		fprintf(f, "\n");
1234	}
1235
1236	if (config->ap_vendor_elements) {
1237		int i, len = wpabuf_len(config->ap_vendor_elements);
1238		const u8 *p = wpabuf_head_u8(config->ap_vendor_elements);
1239		if (len > 0) {
1240			fprintf(f, "ap_vendor_elements=");
1241			for (i = 0; i < len; i++)
1242				fprintf(f, "%02x", *p++);
1243			fprintf(f, "\n");
1244		}
1245	}
1246
1247	if (config->ignore_old_scan_res)
1248		fprintf(f, "ignore_old_scan_res=%d\n",
1249			config->ignore_old_scan_res);
1250
1251	if (config->freq_list && config->freq_list[0]) {
1252		int i;
1253		fprintf(f, "freq_list=");
1254		for (i = 0; config->freq_list[i]; i++) {
1255			fprintf(f, "%s%d", i > 0 ? " " : "",
1256				config->freq_list[i]);
1257		}
1258		fprintf(f, "\n");
1259	}
1260	if (config->scan_cur_freq != DEFAULT_SCAN_CUR_FREQ)
1261		fprintf(f, "scan_cur_freq=%d\n", config->scan_cur_freq);
1262
1263	if (config->sched_scan_interval)
1264		fprintf(f, "sched_scan_interval=%u\n",
1265			config->sched_scan_interval);
1266
1267	if (config->external_sim)
1268		fprintf(f, "external_sim=%d\n", config->external_sim);
1269
1270	if (config->tdls_external_control)
1271		fprintf(f, "tdls_external_control=%d\n",
1272			config->tdls_external_control);
1273
1274	if (config->wowlan_triggers)
1275		fprintf(f, "wowlan_triggers=%s\n",
1276			config->wowlan_triggers);
1277
1278	if (config->bgscan)
1279		fprintf(f, "bgscan=\"%s\"\n", config->bgscan);
1280
1281	if (config->p2p_search_delay != DEFAULT_P2P_SEARCH_DELAY)
1282		fprintf(f, "p2p_search_delay=%u\n",
1283			config->p2p_search_delay);
1284
1285	if (config->mac_addr)
1286		fprintf(f, "mac_addr=%d\n", config->mac_addr);
1287
1288	if (config->rand_addr_lifetime != DEFAULT_RAND_ADDR_LIFETIME)
1289		fprintf(f, "rand_addr_lifetime=%u\n",
1290			config->rand_addr_lifetime);
1291
1292	if (config->preassoc_mac_addr)
1293		fprintf(f, "preassoc_mac_addr=%d\n", config->preassoc_mac_addr);
1294
1295	if (config->key_mgmt_offload != DEFAULT_KEY_MGMT_OFFLOAD)
1296		fprintf(f, "key_mgmt_offload=%d\n", config->key_mgmt_offload);
1297
1298	if (config->user_mpm != DEFAULT_USER_MPM)
1299		fprintf(f, "user_mpm=%d\n", config->user_mpm);
1300
1301	if (config->max_peer_links != DEFAULT_MAX_PEER_LINKS)
1302		fprintf(f, "max_peer_links=%d\n", config->max_peer_links);
1303
1304	if (config->cert_in_cb != DEFAULT_CERT_IN_CB)
1305		fprintf(f, "cert_in_cb=%d\n", config->cert_in_cb);
1306
1307	if (config->mesh_max_inactivity != DEFAULT_MESH_MAX_INACTIVITY)
1308		fprintf(f, "mesh_max_inactivity=%d\n",
1309			config->mesh_max_inactivity);
1310
1311	if (config->dot11RSNASAERetransPeriod !=
1312	    DEFAULT_DOT11_RSNA_SAE_RETRANS_PERIOD)
1313		fprintf(f, "dot11RSNASAERetransPeriod=%d\n",
1314			config->dot11RSNASAERetransPeriod);
1315
1316	if (config->passive_scan)
1317		fprintf(f, "passive_scan=%d\n", config->passive_scan);
1318
1319	if (config->reassoc_same_bss_optim)
1320		fprintf(f, "reassoc_same_bss_optim=%d\n",
1321			config->reassoc_same_bss_optim);
1322
1323	if (config->wps_priority)
1324		fprintf(f, "wps_priority=%d\n", config->wps_priority);
1325
1326	if (config->wpa_rsc_relaxation != DEFAULT_WPA_RSC_RELAXATION)
1327		fprintf(f, "wpa_rsc_relaxation=%d\n",
1328			config->wpa_rsc_relaxation);
1329
1330	if (config->sched_scan_plans)
1331		fprintf(f, "sched_scan_plans=%s\n", config->sched_scan_plans);
1332
1333#ifdef CONFIG_MBO
1334	if (config->non_pref_chan)
1335		fprintf(f, "non_pref_chan=%s\n", config->non_pref_chan);
1336	if (config->mbo_cell_capa != DEFAULT_MBO_CELL_CAPA)
1337		fprintf(f, "mbo_cell_capa=%u\n", config->mbo_cell_capa);
1338#endif /* CONFIG_MBO */
1339
1340	if (config->gas_address3)
1341		fprintf(f, "gas_address3=%d\n", config->gas_address3);
1342
1343	if (config->ftm_responder)
1344		fprintf(f, "ftm_responder=%d\n", config->ftm_responder);
1345	if (config->ftm_initiator)
1346		fprintf(f, "ftm_initiator=%d\n", config->ftm_initiator);
1347}
1348
1349#endif /* CONFIG_NO_CONFIG_WRITE */
1350
1351
1352int wpa_config_write(const char *name, struct wpa_config *config)
1353{
1354#ifndef CONFIG_NO_CONFIG_WRITE
1355	FILE *f;
1356	struct wpa_ssid *ssid;
1357	struct wpa_cred *cred;
1358#ifndef CONFIG_NO_CONFIG_BLOBS
1359	struct wpa_config_blob *blob;
1360#endif /* CONFIG_NO_CONFIG_BLOBS */
1361	int ret = 0;
1362	const char *orig_name = name;
1363	int tmp_len = os_strlen(name) + 5; /* allow space for .tmp suffix */
1364	char *tmp_name = os_malloc(tmp_len);
1365
1366	if (tmp_name) {
1367		os_snprintf(tmp_name, tmp_len, "%s.tmp", name);
1368		name = tmp_name;
1369	}
1370
1371	wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name);
1372
1373	f = fopen(name, "w");
1374	if (f == NULL) {
1375		wpa_printf(MSG_DEBUG, "Failed to open '%s' for writing", name);
1376		os_free(tmp_name);
1377		return -1;
1378	}
1379
1380	wpa_config_write_global(f, config);
1381
1382	for (cred = config->cred; cred; cred = cred->next) {
1383		if (cred->temporary)
1384			continue;
1385		fprintf(f, "\ncred={\n");
1386		wpa_config_write_cred(f, cred);
1387		fprintf(f, "}\n");
1388	}
1389
1390	for (ssid = config->ssid; ssid; ssid = ssid->next) {
1391		if (ssid->key_mgmt == WPA_KEY_MGMT_WPS || ssid->temporary)
1392			continue; /* do not save temporary networks */
1393		if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
1394		    !ssid->passphrase)
1395			continue; /* do not save invalid network */
1396		fprintf(f, "\nnetwork={\n");
1397		wpa_config_write_network(f, ssid);
1398		fprintf(f, "}\n");
1399	}
1400
1401#ifndef CONFIG_NO_CONFIG_BLOBS
1402	for (blob = config->blobs; blob; blob = blob->next) {
1403		ret = wpa_config_write_blob(f, blob);
1404		if (ret)
1405			break;
1406	}
1407#endif /* CONFIG_NO_CONFIG_BLOBS */
1408
1409	os_fdatasync(f);
1410
1411	fclose(f);
1412
1413	if (tmp_name) {
1414		int chmod_ret = 0;
1415
1416#ifdef ANDROID
1417		chmod_ret = chmod(tmp_name,
1418				  S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
1419#endif /* ANDROID */
1420		if (chmod_ret != 0 || rename(tmp_name, orig_name) != 0)
1421			ret = -1;
1422
1423		os_free(tmp_name);
1424	}
1425
1426	wpa_printf(MSG_DEBUG, "Configuration file '%s' written %ssuccessfully",
1427		   orig_name, ret ? "un" : "");
1428	return ret;
1429#else /* CONFIG_NO_CONFIG_WRITE */
1430	return -1;
1431#endif /* CONFIG_NO_CONFIG_WRITE */
1432}
1433