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
28static 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
40static 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 */
65static 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
127static 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#ifdef CONFIG_OCV
164	if (ssid->ocv && ssid->ieee80211w == NO_MGMT_FRAME_PROTECTION) {
165		wpa_printf(MSG_ERROR,
166			   "Line %d: PMF needs to be enabled whenever using OCV",
167			   line);
168		errors++;
169	}
170#endif /* CONFIG_OCV */
171
172	return errors;
173}
174
175
176static struct wpa_ssid * wpa_config_read_network(FILE *f, int *line, int id)
177{
178	struct wpa_ssid *ssid;
179	int errors = 0, end = 0;
180	char buf[2000], *pos, *pos2;
181
182	wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new network block",
183		   *line);
184	ssid = os_zalloc(sizeof(*ssid));
185	if (ssid == NULL)
186		return NULL;
187	dl_list_init(&ssid->psk_list);
188	ssid->id = id;
189
190	wpa_config_set_network_defaults(ssid);
191
192	while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
193		if (os_strcmp(pos, "}") == 0) {
194			end = 1;
195			break;
196		}
197
198		pos2 = os_strchr(pos, '=');
199		if (pos2 == NULL) {
200			wpa_printf(MSG_ERROR, "Line %d: Invalid SSID line "
201				   "'%s'.", *line, pos);
202			errors++;
203			continue;
204		}
205
206		*pos2++ = '\0';
207		if (*pos2 == '"') {
208			if (os_strchr(pos2 + 1, '"') == NULL) {
209				wpa_printf(MSG_ERROR, "Line %d: invalid "
210					   "quotation '%s'.", *line, pos2);
211				errors++;
212				continue;
213			}
214		}
215
216		if (wpa_config_set(ssid, pos, pos2, *line) < 0)
217			errors++;
218	}
219
220	if (!end) {
221		wpa_printf(MSG_ERROR, "Line %d: network block was not "
222			   "terminated properly.", *line);
223		errors++;
224	}
225
226	errors += wpa_config_validate_network(ssid, *line);
227
228	if (errors) {
229		wpa_config_free_ssid(ssid);
230		ssid = NULL;
231	}
232
233	return ssid;
234}
235
236
237static struct wpa_cred * wpa_config_read_cred(FILE *f, int *line, int id)
238{
239	struct wpa_cred *cred;
240	int errors = 0, end = 0;
241	char buf[256], *pos, *pos2;
242
243	wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new cred block", *line);
244	cred = os_zalloc(sizeof(*cred));
245	if (cred == NULL)
246		return NULL;
247	cred->id = id;
248	cred->sim_num = DEFAULT_USER_SELECTED_SIM;
249
250	while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
251		if (os_strcmp(pos, "}") == 0) {
252			end = 1;
253			break;
254		}
255
256		pos2 = os_strchr(pos, '=');
257		if (pos2 == NULL) {
258			wpa_printf(MSG_ERROR, "Line %d: Invalid cred line "
259				   "'%s'.", *line, pos);
260			errors++;
261			continue;
262		}
263
264		*pos2++ = '\0';
265		if (*pos2 == '"') {
266			if (os_strchr(pos2 + 1, '"') == NULL) {
267				wpa_printf(MSG_ERROR, "Line %d: invalid "
268					   "quotation '%s'.", *line, pos2);
269				errors++;
270				continue;
271			}
272		}
273
274		if (wpa_config_set_cred(cred, pos, pos2, *line) < 0)
275			errors++;
276	}
277
278	if (!end) {
279		wpa_printf(MSG_ERROR, "Line %d: cred block was not "
280			   "terminated properly.", *line);
281		errors++;
282	}
283
284	if (errors) {
285		wpa_config_free_cred(cred);
286		cred = NULL;
287	}
288
289	return cred;
290}
291
292
293#ifndef CONFIG_NO_CONFIG_BLOBS
294static struct wpa_config_blob * wpa_config_read_blob(FILE *f, int *line,
295						     const char *name)
296{
297	struct wpa_config_blob *blob;
298	char buf[256], *pos;
299	unsigned char *encoded = NULL, *nencoded;
300	int end = 0;
301	size_t encoded_len = 0, len;
302
303	wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new named blob '%s'",
304		   *line, name);
305
306	while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
307		if (os_strcmp(pos, "}") == 0) {
308			end = 1;
309			break;
310		}
311
312		len = os_strlen(pos);
313		nencoded = os_realloc(encoded, encoded_len + len);
314		if (nencoded == NULL) {
315			wpa_printf(MSG_ERROR, "Line %d: not enough memory for "
316				   "blob", *line);
317			os_free(encoded);
318			return NULL;
319		}
320		encoded = nencoded;
321		os_memcpy(encoded + encoded_len, pos, len);
322		encoded_len += len;
323	}
324
325	if (!end || !encoded) {
326		wpa_printf(MSG_ERROR, "Line %d: blob was not terminated "
327			   "properly", *line);
328		os_free(encoded);
329		return NULL;
330	}
331
332	blob = os_zalloc(sizeof(*blob));
333	if (blob == NULL) {
334		os_free(encoded);
335		return NULL;
336	}
337	blob->name = os_strdup(name);
338	blob->data = base64_decode(encoded, encoded_len, &blob->len);
339	os_free(encoded);
340
341	if (blob->name == NULL || blob->data == NULL) {
342		wpa_config_free_blob(blob);
343		return NULL;
344	}
345
346	return blob;
347}
348
349
350static int wpa_config_process_blob(struct wpa_config *config, FILE *f,
351				   int *line, char *bname)
352{
353	char *name_end;
354	struct wpa_config_blob *blob;
355
356	name_end = os_strchr(bname, '=');
357	if (name_end == NULL) {
358		wpa_printf(MSG_ERROR, "Line %d: no blob name terminator",
359			   *line);
360		return -1;
361	}
362	*name_end = '\0';
363
364	blob = wpa_config_read_blob(f, line, bname);
365	if (blob == NULL) {
366		wpa_printf(MSG_ERROR, "Line %d: failed to read blob %s",
367			   *line, bname);
368		return -1;
369	}
370	wpa_config_set_blob(config, blob);
371	return 0;
372}
373#endif /* CONFIG_NO_CONFIG_BLOBS */
374
375
376struct wpa_config * wpa_config_read(const char *name, struct wpa_config *cfgp)
377{
378	FILE *f;
379	char buf[512], *pos;
380	int errors = 0, line = 0;
381	struct wpa_ssid *ssid, *tail, *head;
382	struct wpa_cred *cred, *cred_tail, *cred_head;
383	struct wpa_config *config;
384	int id = 0;
385	int cred_id = 0;
386
387	if (name == NULL)
388		return NULL;
389	if (cfgp)
390		config = cfgp;
391	else
392		config = wpa_config_alloc_empty(NULL, NULL);
393	if (config == NULL) {
394		wpa_printf(MSG_ERROR, "Failed to allocate config file "
395			   "structure");
396		return NULL;
397	}
398	tail = head = config->ssid;
399	while (tail && tail->next)
400		tail = tail->next;
401	cred_tail = cred_head = config->cred;
402	while (cred_tail && cred_tail->next)
403		cred_tail = cred_tail->next;
404
405	wpa_printf(MSG_DEBUG, "Reading configuration file '%s'", name);
406	f = fopen(name, "r");
407	if (f == NULL) {
408		wpa_printf(MSG_ERROR, "Failed to open config file '%s', "
409			   "error: %s", name, strerror(errno));
410		if (config != cfgp)
411			os_free(config);
412		return NULL;
413	}
414
415	while (wpa_config_get_line(buf, sizeof(buf), f, &line, &pos)) {
416		if (os_strcmp(pos, "network={") == 0) {
417			ssid = wpa_config_read_network(f, &line, id++);
418			if (ssid == NULL) {
419				wpa_printf(MSG_ERROR, "Line %d: failed to "
420					   "parse network block.", line);
421				errors++;
422				continue;
423			}
424			if (head == NULL) {
425				head = tail = ssid;
426			} else {
427				tail->next = ssid;
428				tail = ssid;
429			}
430			if (wpa_config_add_prio_network(config, ssid)) {
431				wpa_printf(MSG_ERROR, "Line %d: failed to add "
432					   "network block to priority list.",
433					   line);
434				errors++;
435				continue;
436			}
437		} else if (os_strcmp(pos, "cred={") == 0) {
438			cred = wpa_config_read_cred(f, &line, cred_id++);
439			if (cred == NULL) {
440				wpa_printf(MSG_ERROR, "Line %d: failed to "
441					   "parse cred block.", line);
442				errors++;
443				continue;
444			}
445			if (cred_head == NULL) {
446				cred_head = cred_tail = cred;
447			} else {
448				cred_tail->next = cred;
449				cred_tail = cred;
450			}
451#ifndef CONFIG_NO_CONFIG_BLOBS
452		} else if (os_strncmp(pos, "blob-base64-", 12) == 0) {
453			if (wpa_config_process_blob(config, f, &line, pos + 12)
454			    < 0) {
455				wpa_printf(MSG_ERROR, "Line %d: failed to "
456					   "process blob.", line);
457				errors++;
458				continue;
459			}
460#endif /* CONFIG_NO_CONFIG_BLOBS */
461		} else if (wpa_config_process_global(config, pos, line) < 0) {
462			wpa_printf(MSG_ERROR, "Line %d: Invalid configuration "
463				   "line '%s'.", line, pos);
464			errors++;
465			continue;
466		}
467	}
468
469	fclose(f);
470
471	config->ssid = head;
472	wpa_config_debug_dump_networks(config);
473	config->cred = cred_head;
474
475#ifndef WPA_IGNORE_CONFIG_ERRORS
476	if (errors) {
477		if (config != cfgp)
478			wpa_config_free(config);
479		config = NULL;
480		head = NULL;
481	}
482#endif /* WPA_IGNORE_CONFIG_ERRORS */
483
484	return config;
485}
486
487
488#ifndef CONFIG_NO_CONFIG_WRITE
489
490static void write_str(FILE *f, const char *field, struct wpa_ssid *ssid)
491{
492	char *value = wpa_config_get(ssid, field);
493	if (value == NULL)
494		return;
495	fprintf(f, "\t%s=%s\n", field, value);
496	str_clear_free(value);
497}
498
499
500static void write_int(FILE *f, const char *field, int value, int def)
501{
502	if (value == def)
503		return;
504	fprintf(f, "\t%s=%d\n", field, value);
505}
506
507
508static void write_bssid(FILE *f, struct wpa_ssid *ssid)
509{
510	char *value = wpa_config_get(ssid, "bssid");
511	if (value == NULL)
512		return;
513	fprintf(f, "\tbssid=%s\n", value);
514	os_free(value);
515}
516
517
518static void write_bssid_hint(FILE *f, struct wpa_ssid *ssid)
519{
520	char *value = wpa_config_get(ssid, "bssid_hint");
521
522	if (!value)
523		return;
524	fprintf(f, "\tbssid_hint=%s\n", value);
525	os_free(value);
526}
527
528
529static void write_psk(FILE *f, struct wpa_ssid *ssid)
530{
531	char *value;
532
533	if (ssid->mem_only_psk)
534		return;
535
536	value = wpa_config_get(ssid, "psk");
537	if (value == NULL)
538		return;
539	fprintf(f, "\tpsk=%s\n", value);
540	os_free(value);
541}
542
543
544static void write_proto(FILE *f, struct wpa_ssid *ssid)
545{
546	char *value;
547
548	if (ssid->proto == DEFAULT_PROTO)
549		return;
550
551	value = wpa_config_get(ssid, "proto");
552	if (value == NULL)
553		return;
554	if (value[0])
555		fprintf(f, "\tproto=%s\n", value);
556	os_free(value);
557}
558
559
560static void write_key_mgmt(FILE *f, struct wpa_ssid *ssid)
561{
562	char *value;
563
564	if (ssid->key_mgmt == DEFAULT_KEY_MGMT)
565		return;
566
567	value = wpa_config_get(ssid, "key_mgmt");
568	if (value == NULL)
569		return;
570	if (value[0])
571		fprintf(f, "\tkey_mgmt=%s\n", value);
572	os_free(value);
573}
574
575
576static void write_pairwise(FILE *f, struct wpa_ssid *ssid)
577{
578	char *value;
579
580	if (ssid->pairwise_cipher == DEFAULT_PAIRWISE)
581		return;
582
583	value = wpa_config_get(ssid, "pairwise");
584	if (value == NULL)
585		return;
586	if (value[0])
587		fprintf(f, "\tpairwise=%s\n", value);
588	os_free(value);
589}
590
591
592static void write_group(FILE *f, struct wpa_ssid *ssid)
593{
594	char *value;
595
596	if (ssid->group_cipher == DEFAULT_GROUP)
597		return;
598
599	value = wpa_config_get(ssid, "group");
600	if (value == NULL)
601		return;
602	if (value[0])
603		fprintf(f, "\tgroup=%s\n", value);
604	os_free(value);
605}
606
607
608static void write_group_mgmt(FILE *f, struct wpa_ssid *ssid)
609{
610	char *value;
611
612	if (!ssid->group_mgmt_cipher)
613		return;
614
615	value = wpa_config_get(ssid, "group_mgmt");
616	if (!value)
617		return;
618	if (value[0])
619		fprintf(f, "\tgroup_mgmt=%s\n", value);
620	os_free(value);
621}
622
623
624static void write_auth_alg(FILE *f, struct wpa_ssid *ssid)
625{
626	char *value;
627
628	if (ssid->auth_alg == 0)
629		return;
630
631	value = wpa_config_get(ssid, "auth_alg");
632	if (value == NULL)
633		return;
634	if (value[0])
635		fprintf(f, "\tauth_alg=%s\n", value);
636	os_free(value);
637}
638
639
640#ifdef IEEE8021X_EAPOL
641static void write_eap(FILE *f, struct wpa_ssid *ssid)
642{
643	char *value;
644
645	value = wpa_config_get(ssid, "eap");
646	if (value == NULL)
647		return;
648
649	if (value[0])
650		fprintf(f, "\teap=%s\n", value);
651	os_free(value);
652}
653#endif /* IEEE8021X_EAPOL */
654
655
656static void write_wep_key(FILE *f, int idx, struct wpa_ssid *ssid)
657{
658	char field[20], *value;
659	int res;
660
661	res = os_snprintf(field, sizeof(field), "wep_key%d", idx);
662	if (os_snprintf_error(sizeof(field), res))
663		return;
664	value = wpa_config_get(ssid, field);
665	if (value) {
666		fprintf(f, "\t%s=%s\n", field, value);
667		os_free(value);
668	}
669}
670
671
672#ifdef CONFIG_P2P
673
674static void write_go_p2p_dev_addr(FILE *f, struct wpa_ssid *ssid)
675{
676	char *value = wpa_config_get(ssid, "go_p2p_dev_addr");
677	if (value == NULL)
678		return;
679	fprintf(f, "\tgo_p2p_dev_addr=%s\n", value);
680	os_free(value);
681}
682
683static void write_p2p_client_list(FILE *f, struct wpa_ssid *ssid)
684{
685	char *value = wpa_config_get(ssid, "p2p_client_list");
686	if (value == NULL)
687		return;
688	fprintf(f, "\tp2p_client_list=%s\n", value);
689	os_free(value);
690}
691
692
693static void write_psk_list(FILE *f, struct wpa_ssid *ssid)
694{
695	struct psk_list_entry *psk;
696	char hex[32 * 2 + 1];
697
698	dl_list_for_each(psk, &ssid->psk_list, struct psk_list_entry, list) {
699		wpa_snprintf_hex(hex, sizeof(hex), psk->psk, sizeof(psk->psk));
700		fprintf(f, "\tpsk_list=%s" MACSTR "-%s\n",
701			psk->p2p ? "P2P-" : "", MAC2STR(psk->addr), hex);
702	}
703}
704
705#endif /* CONFIG_P2P */
706
707
708#ifdef CONFIG_MACSEC
709
710static void write_mka_cak(FILE *f, struct wpa_ssid *ssid)
711{
712	char *value;
713
714	if (!(ssid->mka_psk_set & MKA_PSK_SET_CAK))
715		return;
716
717	value = wpa_config_get(ssid, "mka_cak");
718	if (!value)
719		return;
720	fprintf(f, "\tmka_cak=%s\n", value);
721	os_free(value);
722}
723
724
725static void write_mka_ckn(FILE *f, struct wpa_ssid *ssid)
726{
727	char *value;
728
729	if (!(ssid->mka_psk_set & MKA_PSK_SET_CKN))
730		return;
731
732	value = wpa_config_get(ssid, "mka_ckn");
733	if (!value)
734		return;
735	fprintf(f, "\tmka_ckn=%s\n", value);
736	os_free(value);
737}
738
739#endif /* CONFIG_MACSEC */
740
741
742static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
743{
744	int i;
745
746#define STR(t) write_str(f, #t, ssid)
747#define INT(t) write_int(f, #t, ssid->t, 0)
748#define INTe(t) write_int(f, #t, ssid->eap.t, 0)
749#define INT_DEF(t, def) write_int(f, #t, ssid->t, def)
750#define INT_DEFe(t, def) write_int(f, #t, ssid->eap.t, def)
751
752	STR(ssid);
753	INT(scan_ssid);
754	write_bssid(f, ssid);
755	write_bssid_hint(f, ssid);
756	write_str(f, "bssid_blacklist", ssid);
757	write_str(f, "bssid_whitelist", ssid);
758	write_psk(f, ssid);
759	INT(mem_only_psk);
760	STR(sae_password);
761	STR(sae_password_id);
762	write_proto(f, ssid);
763	write_key_mgmt(f, ssid);
764	INT_DEF(bg_scan_period, DEFAULT_BG_SCAN_PERIOD);
765	write_pairwise(f, ssid);
766	write_group(f, ssid);
767	write_group_mgmt(f, ssid);
768	write_auth_alg(f, ssid);
769	STR(bgscan);
770	STR(autoscan);
771	STR(scan_freq);
772#ifdef IEEE8021X_EAPOL
773	write_eap(f, ssid);
774	STR(identity);
775	STR(anonymous_identity);
776	STR(imsi_identity);
777	STR(password);
778	STR(ca_cert);
779	STR(ca_path);
780	STR(client_cert);
781	STR(private_key);
782	STR(private_key_passwd);
783	STR(dh_file);
784	STR(subject_match);
785	STR(check_cert_subject);
786	STR(altsubject_match);
787	STR(domain_suffix_match);
788	STR(domain_match);
789	STR(ca_cert2);
790	STR(ca_path2);
791	STR(client_cert2);
792	STR(private_key2);
793	STR(private_key2_passwd);
794	STR(dh_file2);
795	STR(subject_match2);
796	STR(check_cert_subject2);
797	STR(altsubject_match2);
798	STR(domain_suffix_match2);
799	STR(domain_match2);
800	STR(phase1);
801	STR(phase2);
802	STR(pcsc);
803	STR(pin);
804	STR(engine_id);
805	STR(key_id);
806	STR(cert_id);
807	STR(ca_cert_id);
808	STR(key2_id);
809	STR(pin2);
810	STR(engine2_id);
811	STR(cert2_id);
812	STR(ca_cert2_id);
813	INTe(engine);
814	INTe(engine2);
815	INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS);
816	STR(openssl_ciphers);
817	INTe(erp);
818#endif /* IEEE8021X_EAPOL */
819	for (i = 0; i < 4; i++)
820		write_wep_key(f, i, ssid);
821	INT(wep_tx_keyidx);
822	INT(priority);
823#ifdef IEEE8021X_EAPOL
824	INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND);
825	STR(pac_file);
826	INT_DEFe(fragment_size, DEFAULT_FRAGMENT_SIZE);
827	INTe(ocsp);
828	INT_DEFe(sim_num, DEFAULT_USER_SELECTED_SIM);
829#endif /* IEEE8021X_EAPOL */
830	INT(mode);
831	INT(no_auto_peer);
832	INT(frequency);
833	INT(fixed_freq);
834#ifdef CONFIG_ACS
835	INT(acs);
836#endif /* CONFIG_ACS */
837	write_int(f, "proactive_key_caching", ssid->proactive_key_caching, -1);
838	INT(disabled);
839	INT(mixed_cell);
840	INT(vht);
841	INT_DEF(ht, 1);
842	INT(ht40);
843	INT_DEF(max_oper_chwidth, DEFAULT_MAX_OPER_CHWIDTH);
844	INT(vht_center_freq1);
845	INT(vht_center_freq2);
846	INT(pbss);
847	INT(wps_disabled);
848	INT(fils_dh_group);
849#ifdef CONFIG_IEEE80211W
850	write_int(f, "ieee80211w", ssid->ieee80211w,
851		  MGMT_FRAME_PROTECTION_DEFAULT);
852#endif /* CONFIG_IEEE80211W */
853	STR(id_str);
854#ifdef CONFIG_P2P
855	write_go_p2p_dev_addr(f, ssid);
856	write_p2p_client_list(f, ssid);
857	write_psk_list(f, ssid);
858#endif /* CONFIG_P2P */
859	INT(ap_max_inactivity);
860	INT(dtim_period);
861	INT(beacon_int);
862#ifdef CONFIG_MACSEC
863	INT(macsec_policy);
864	write_mka_cak(f, ssid);
865	write_mka_ckn(f, ssid);
866	INT(macsec_integ_only);
867	INT(macsec_replay_protect);
868	INT(macsec_replay_window);
869	INT(macsec_port);
870	INT_DEF(mka_priority, DEFAULT_PRIO_NOT_KEY_SERVER);
871#endif /* CONFIG_MACSEC */
872#ifdef CONFIG_HS20
873	INT(update_identifier);
874	STR(roaming_consortium_selection);
875#endif /* CONFIG_HS20 */
876	write_int(f, "mac_addr", ssid->mac_addr, -1);
877#ifdef CONFIG_MESH
878	STR(mesh_basic_rates);
879	INT_DEF(dot11MeshMaxRetries, DEFAULT_MESH_MAX_RETRIES);
880	INT_DEF(dot11MeshRetryTimeout, DEFAULT_MESH_RETRY_TIMEOUT);
881	INT_DEF(dot11MeshConfirmTimeout, DEFAULT_MESH_CONFIRM_TIMEOUT);
882	INT_DEF(dot11MeshHoldingTimeout, DEFAULT_MESH_HOLDING_TIMEOUT);
883	INT_DEF(mesh_rssi_threshold, DEFAULT_MESH_RSSI_THRESHOLD);
884#endif /* CONFIG_MESH */
885	INT(wpa_ptk_rekey);
886	INT(group_rekey);
887	INT(ignore_broadcast_ssid);
888#ifdef CONFIG_DPP
889	STR(dpp_connector);
890	STR(dpp_netaccesskey);
891	INT(dpp_netaccesskey_expiry);
892	STR(dpp_csign);
893#endif /* CONFIG_DPP */
894	INT(owe_group);
895	INT(owe_only);
896	INT(multi_ap_backhaul_sta);
897	INT(ft_eap_pmksa_caching);
898#ifdef CONFIG_HT_OVERRIDES
899	INT_DEF(disable_ht, DEFAULT_DISABLE_HT);
900	INT_DEF(disable_ht40, DEFAULT_DISABLE_HT40);
901	INT_DEF(disable_sgi, DEFAULT_DISABLE_SGI);
902	INT_DEF(disable_ldpc, DEFAULT_DISABLE_LDPC);
903	INT(ht40_intolerant);
904	INT_DEF(tx_stbc, DEFAULT_TX_STBC);
905	INT_DEF(rx_stbc, DEFAULT_RX_STBC);
906	INT_DEF(disable_max_amsdu, DEFAULT_DISABLE_MAX_AMSDU);
907	INT_DEF(ampdu_factor, DEFAULT_AMPDU_FACTOR);
908	INT_DEF(ampdu_density, DEFAULT_AMPDU_DENSITY);
909	STR(ht_mcs);
910#endif /* CONFIG_HT_OVERRIDES */
911#ifdef CONFIG_VHT_OVERRIDES
912	INT(disable_vht);
913	INT(vht_capa);
914	INT(vht_capa_mask);
915	INT_DEF(vht_rx_mcs_nss_1, -1);
916	INT_DEF(vht_rx_mcs_nss_2, -1);
917	INT_DEF(vht_rx_mcs_nss_3, -1);
918	INT_DEF(vht_rx_mcs_nss_4, -1);
919	INT_DEF(vht_rx_mcs_nss_5, -1);
920	INT_DEF(vht_rx_mcs_nss_6, -1);
921	INT_DEF(vht_rx_mcs_nss_7, -1);
922	INT_DEF(vht_rx_mcs_nss_8, -1);
923	INT_DEF(vht_tx_mcs_nss_1, -1);
924	INT_DEF(vht_tx_mcs_nss_2, -1);
925	INT_DEF(vht_tx_mcs_nss_3, -1);
926	INT_DEF(vht_tx_mcs_nss_4, -1);
927	INT_DEF(vht_tx_mcs_nss_5, -1);
928	INT_DEF(vht_tx_mcs_nss_6, -1);
929	INT_DEF(vht_tx_mcs_nss_7, -1);
930	INT_DEF(vht_tx_mcs_nss_8, -1);
931#endif /* CONFIG_VHT_OVERRIDES */
932
933#undef STR
934#undef INT
935#undef INT_DEF
936}
937
938
939static void wpa_config_write_cred(FILE *f, struct wpa_cred *cred)
940{
941	size_t i;
942
943	if (cred->priority)
944		fprintf(f, "\tpriority=%d\n", cred->priority);
945	if (cred->pcsc)
946		fprintf(f, "\tpcsc=%d\n", cred->pcsc);
947	if (cred->realm)
948		fprintf(f, "\trealm=\"%s\"\n", cred->realm);
949	if (cred->username)
950		fprintf(f, "\tusername=\"%s\"\n", cred->username);
951	if (cred->password && cred->ext_password)
952		fprintf(f, "\tpassword=ext:%s\n", cred->password);
953	else if (cred->password)
954		fprintf(f, "\tpassword=\"%s\"\n", cred->password);
955	if (cred->ca_cert)
956		fprintf(f, "\tca_cert=\"%s\"\n", cred->ca_cert);
957	if (cred->client_cert)
958		fprintf(f, "\tclient_cert=\"%s\"\n", cred->client_cert);
959	if (cred->private_key)
960		fprintf(f, "\tprivate_key=\"%s\"\n", cred->private_key);
961	if (cred->private_key_passwd)
962		fprintf(f, "\tprivate_key_passwd=\"%s\"\n",
963			cred->private_key_passwd);
964	if (cred->imsi)
965		fprintf(f, "\timsi=\"%s\"\n", cred->imsi);
966	if (cred->milenage)
967		fprintf(f, "\tmilenage=\"%s\"\n", cred->milenage);
968	for (i = 0; i < cred->num_domain; i++)
969		fprintf(f, "\tdomain=\"%s\"\n", cred->domain[i]);
970	if (cred->domain_suffix_match)
971		fprintf(f, "\tdomain_suffix_match=\"%s\"\n",
972			cred->domain_suffix_match);
973	if (cred->roaming_consortium_len) {
974		fprintf(f, "\troaming_consortium=");
975		for (i = 0; i < cred->roaming_consortium_len; i++)
976			fprintf(f, "%02x", cred->roaming_consortium[i]);
977		fprintf(f, "\n");
978	}
979	if (cred->eap_method) {
980		const char *name;
981		name = eap_get_name(cred->eap_method[0].vendor,
982				    cred->eap_method[0].method);
983		if (name)
984			fprintf(f, "\teap=%s\n", name);
985	}
986	if (cred->phase1)
987		fprintf(f, "\tphase1=\"%s\"\n", cred->phase1);
988	if (cred->phase2)
989		fprintf(f, "\tphase2=\"%s\"\n", cred->phase2);
990	if (cred->excluded_ssid) {
991		size_t j;
992		for (i = 0; i < cred->num_excluded_ssid; i++) {
993			struct excluded_ssid *e = &cred->excluded_ssid[i];
994			fprintf(f, "\texcluded_ssid=");
995			for (j = 0; j < e->ssid_len; j++)
996				fprintf(f, "%02x", e->ssid[j]);
997			fprintf(f, "\n");
998		}
999	}
1000	if (cred->roaming_partner) {
1001		for (i = 0; i < cred->num_roaming_partner; i++) {
1002			struct roaming_partner *p = &cred->roaming_partner[i];
1003			fprintf(f, "\troaming_partner=\"%s,%d,%u,%s\"\n",
1004				p->fqdn, p->exact_match, p->priority,
1005				p->country);
1006		}
1007	}
1008	if (cred->update_identifier)
1009		fprintf(f, "\tupdate_identifier=%d\n", cred->update_identifier);
1010
1011	if (cred->provisioning_sp)
1012		fprintf(f, "\tprovisioning_sp=\"%s\"\n", cred->provisioning_sp);
1013	if (cred->sp_priority)
1014		fprintf(f, "\tsp_priority=%d\n", cred->sp_priority);
1015
1016	if (cred->min_dl_bandwidth_home)
1017		fprintf(f, "\tmin_dl_bandwidth_home=%u\n",
1018			cred->min_dl_bandwidth_home);
1019	if (cred->min_ul_bandwidth_home)
1020		fprintf(f, "\tmin_ul_bandwidth_home=%u\n",
1021			cred->min_ul_bandwidth_home);
1022	if (cred->min_dl_bandwidth_roaming)
1023		fprintf(f, "\tmin_dl_bandwidth_roaming=%u\n",
1024			cred->min_dl_bandwidth_roaming);
1025	if (cred->min_ul_bandwidth_roaming)
1026		fprintf(f, "\tmin_ul_bandwidth_roaming=%u\n",
1027			cred->min_ul_bandwidth_roaming);
1028
1029	if (cred->max_bss_load)
1030		fprintf(f, "\tmax_bss_load=%u\n",
1031			cred->max_bss_load);
1032
1033	if (cred->ocsp)
1034		fprintf(f, "\tocsp=%d\n", cred->ocsp);
1035
1036	if (cred->num_req_conn_capab) {
1037		for (i = 0; i < cred->num_req_conn_capab; i++) {
1038			int *ports;
1039
1040			fprintf(f, "\treq_conn_capab=%u",
1041				cred->req_conn_capab_proto[i]);
1042			ports = cred->req_conn_capab_port[i];
1043			if (ports) {
1044				int j;
1045				for (j = 0; ports[j] != -1; j++) {
1046					fprintf(f, "%s%d", j > 0 ? "," : ":",
1047						ports[j]);
1048				}
1049			}
1050			fprintf(f, "\n");
1051		}
1052	}
1053
1054	if (cred->required_roaming_consortium_len) {
1055		fprintf(f, "\trequired_roaming_consortium=");
1056		for (i = 0; i < cred->required_roaming_consortium_len; i++)
1057			fprintf(f, "%02x",
1058				cred->required_roaming_consortium[i]);
1059		fprintf(f, "\n");
1060	}
1061
1062	if (cred->num_roaming_consortiums) {
1063		size_t j;
1064
1065		fprintf(f, "\troaming_consortiums=\"");
1066		for (i = 0; i < cred->num_roaming_consortiums; i++) {
1067			if (i > 0)
1068				fprintf(f, ",");
1069			for (j = 0; j < cred->roaming_consortiums_len[i]; j++)
1070				fprintf(f, "%02x",
1071					cred->roaming_consortiums[i][j]);
1072		}
1073		fprintf(f, "\"\n");
1074	}
1075
1076	if (cred->sim_num != DEFAULT_USER_SELECTED_SIM)
1077		fprintf(f, "\tsim_num=%d\n", cred->sim_num);
1078}
1079
1080
1081#ifndef CONFIG_NO_CONFIG_BLOBS
1082static int wpa_config_write_blob(FILE *f, struct wpa_config_blob *blob)
1083{
1084	unsigned char *encoded;
1085
1086	encoded = base64_encode(blob->data, blob->len, NULL);
1087	if (encoded == NULL)
1088		return -1;
1089
1090	fprintf(f, "\nblob-base64-%s={\n%s}\n", blob->name, encoded);
1091	os_free(encoded);
1092	return 0;
1093}
1094#endif /* CONFIG_NO_CONFIG_BLOBS */
1095
1096
1097static void write_global_bin(FILE *f, const char *field,
1098			     const struct wpabuf *val)
1099{
1100	size_t i;
1101	const u8 *pos;
1102
1103	if (val == NULL)
1104		return;
1105
1106	fprintf(f, "%s=", field);
1107	pos = wpabuf_head(val);
1108	for (i = 0; i < wpabuf_len(val); i++)
1109		fprintf(f, "%02X", *pos++);
1110	fprintf(f, "\n");
1111}
1112
1113
1114static void wpa_config_write_global(FILE *f, struct wpa_config *config)
1115{
1116#ifdef CONFIG_CTRL_IFACE
1117	if (config->ctrl_interface)
1118		fprintf(f, "ctrl_interface=%s\n", config->ctrl_interface);
1119	if (config->ctrl_interface_group)
1120		fprintf(f, "ctrl_interface_group=%s\n",
1121			config->ctrl_interface_group);
1122#endif /* CONFIG_CTRL_IFACE */
1123	if (config->eapol_version != DEFAULT_EAPOL_VERSION)
1124		fprintf(f, "eapol_version=%d\n", config->eapol_version);
1125	if (config->ap_scan != DEFAULT_AP_SCAN)
1126		fprintf(f, "ap_scan=%d\n", config->ap_scan);
1127	if (config->disable_scan_offload)
1128		fprintf(f, "disable_scan_offload=%d\n",
1129			config->disable_scan_offload);
1130	if (config->fast_reauth != DEFAULT_FAST_REAUTH)
1131		fprintf(f, "fast_reauth=%d\n", config->fast_reauth);
1132	if (config->opensc_engine_path)
1133		fprintf(f, "opensc_engine_path=%s\n",
1134			config->opensc_engine_path);
1135	if (config->pkcs11_engine_path)
1136		fprintf(f, "pkcs11_engine_path=%s\n",
1137			config->pkcs11_engine_path);
1138	if (config->pkcs11_module_path)
1139		fprintf(f, "pkcs11_module_path=%s\n",
1140			config->pkcs11_module_path);
1141	if (config->openssl_ciphers)
1142		fprintf(f, "openssl_ciphers=%s\n", config->openssl_ciphers);
1143	if (config->pcsc_reader)
1144		fprintf(f, "pcsc_reader=%s\n", config->pcsc_reader);
1145	if (config->pcsc_pin)
1146		fprintf(f, "pcsc_pin=%s\n", config->pcsc_pin);
1147	if (config->driver_param)
1148		fprintf(f, "driver_param=%s\n", config->driver_param);
1149	if (config->dot11RSNAConfigPMKLifetime)
1150		fprintf(f, "dot11RSNAConfigPMKLifetime=%u\n",
1151			config->dot11RSNAConfigPMKLifetime);
1152	if (config->dot11RSNAConfigPMKReauthThreshold)
1153		fprintf(f, "dot11RSNAConfigPMKReauthThreshold=%u\n",
1154			config->dot11RSNAConfigPMKReauthThreshold);
1155	if (config->dot11RSNAConfigSATimeout)
1156		fprintf(f, "dot11RSNAConfigSATimeout=%u\n",
1157			config->dot11RSNAConfigSATimeout);
1158	if (config->update_config)
1159		fprintf(f, "update_config=%d\n", config->update_config);
1160#ifdef CONFIG_WPS
1161	if (!is_nil_uuid(config->uuid)) {
1162		char buf[40];
1163		uuid_bin2str(config->uuid, buf, sizeof(buf));
1164		fprintf(f, "uuid=%s\n", buf);
1165	}
1166	if (config->auto_uuid)
1167		fprintf(f, "auto_uuid=%d\n", config->auto_uuid);
1168	if (config->device_name)
1169		fprintf(f, "device_name=%s\n", config->device_name);
1170	if (config->manufacturer)
1171		fprintf(f, "manufacturer=%s\n", config->manufacturer);
1172	if (config->model_name)
1173		fprintf(f, "model_name=%s\n", config->model_name);
1174	if (config->model_number)
1175		fprintf(f, "model_number=%s\n", config->model_number);
1176	if (config->serial_number)
1177		fprintf(f, "serial_number=%s\n", config->serial_number);
1178	{
1179		char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
1180		buf = wps_dev_type_bin2str(config->device_type,
1181					   _buf, sizeof(_buf));
1182		if (os_strcmp(buf, "0-00000000-0") != 0)
1183			fprintf(f, "device_type=%s\n", buf);
1184	}
1185	if (WPA_GET_BE32(config->os_version))
1186		fprintf(f, "os_version=%08x\n",
1187			WPA_GET_BE32(config->os_version));
1188	if (config->config_methods)
1189		fprintf(f, "config_methods=%s\n", config->config_methods);
1190	if (config->wps_cred_processing)
1191		fprintf(f, "wps_cred_processing=%d\n",
1192			config->wps_cred_processing);
1193	if (config->wps_cred_add_sae)
1194		fprintf(f, "wps_cred_add_sae=%d\n",
1195			config->wps_cred_add_sae);
1196	if (config->wps_vendor_ext_m1) {
1197		int i, len = wpabuf_len(config->wps_vendor_ext_m1);
1198		const u8 *p = wpabuf_head_u8(config->wps_vendor_ext_m1);
1199		if (len > 0) {
1200			fprintf(f, "wps_vendor_ext_m1=");
1201			for (i = 0; i < len; i++)
1202				fprintf(f, "%02x", *p++);
1203			fprintf(f, "\n");
1204		}
1205	}
1206#endif /* CONFIG_WPS */
1207#ifdef CONFIG_P2P
1208	{
1209		int i;
1210		char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
1211
1212		for (i = 0; i < config->num_sec_device_types; i++) {
1213			buf = wps_dev_type_bin2str(config->sec_device_type[i],
1214						   _buf, sizeof(_buf));
1215			if (buf)
1216				fprintf(f, "sec_device_type=%s\n", buf);
1217		}
1218	}
1219	if (config->p2p_listen_reg_class)
1220		fprintf(f, "p2p_listen_reg_class=%d\n",
1221			config->p2p_listen_reg_class);
1222	if (config->p2p_listen_channel)
1223		fprintf(f, "p2p_listen_channel=%d\n",
1224			config->p2p_listen_channel);
1225	if (config->p2p_oper_reg_class)
1226		fprintf(f, "p2p_oper_reg_class=%d\n",
1227			config->p2p_oper_reg_class);
1228	if (config->p2p_oper_channel)
1229		fprintf(f, "p2p_oper_channel=%d\n", config->p2p_oper_channel);
1230	if (config->p2p_go_intent != DEFAULT_P2P_GO_INTENT)
1231		fprintf(f, "p2p_go_intent=%d\n", config->p2p_go_intent);
1232	if (config->p2p_ssid_postfix)
1233		fprintf(f, "p2p_ssid_postfix=%s\n", config->p2p_ssid_postfix);
1234	if (config->persistent_reconnect)
1235		fprintf(f, "persistent_reconnect=%d\n",
1236			config->persistent_reconnect);
1237	if (config->p2p_intra_bss != DEFAULT_P2P_INTRA_BSS)
1238		fprintf(f, "p2p_intra_bss=%d\n", config->p2p_intra_bss);
1239	if (config->p2p_group_idle)
1240		fprintf(f, "p2p_group_idle=%d\n", config->p2p_group_idle);
1241	if (config->p2p_passphrase_len)
1242		fprintf(f, "p2p_passphrase_len=%u\n",
1243			config->p2p_passphrase_len);
1244	if (config->p2p_pref_chan) {
1245		unsigned int i;
1246		fprintf(f, "p2p_pref_chan=");
1247		for (i = 0; i < config->num_p2p_pref_chan; i++) {
1248			fprintf(f, "%s%u:%u", i > 0 ? "," : "",
1249				config->p2p_pref_chan[i].op_class,
1250				config->p2p_pref_chan[i].chan);
1251		}
1252		fprintf(f, "\n");
1253	}
1254	if (config->p2p_no_go_freq.num) {
1255		char *val = freq_range_list_str(&config->p2p_no_go_freq);
1256		if (val) {
1257			fprintf(f, "p2p_no_go_freq=%s\n", val);
1258			os_free(val);
1259		}
1260	}
1261	if (config->p2p_add_cli_chan)
1262		fprintf(f, "p2p_add_cli_chan=%d\n", config->p2p_add_cli_chan);
1263	if (config->p2p_optimize_listen_chan !=
1264	    DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN)
1265		fprintf(f, "p2p_optimize_listen_chan=%d\n",
1266			config->p2p_optimize_listen_chan);
1267	if (config->p2p_go_ht40)
1268		fprintf(f, "p2p_go_ht40=%d\n", config->p2p_go_ht40);
1269	if (config->p2p_go_vht)
1270		fprintf(f, "p2p_go_vht=%d\n", config->p2p_go_vht);
1271	if (config->p2p_go_he)
1272		fprintf(f, "p2p_go_he=%d\n", config->p2p_go_he);
1273	if (config->p2p_go_ctwindow != DEFAULT_P2P_GO_CTWINDOW)
1274		fprintf(f, "p2p_go_ctwindow=%d\n", config->p2p_go_ctwindow);
1275	if (config->p2p_disabled)
1276		fprintf(f, "p2p_disabled=%d\n", config->p2p_disabled);
1277	if (config->p2p_no_group_iface)
1278		fprintf(f, "p2p_no_group_iface=%d\n",
1279			config->p2p_no_group_iface);
1280	if (config->p2p_ignore_shared_freq)
1281		fprintf(f, "p2p_ignore_shared_freq=%d\n",
1282			config->p2p_ignore_shared_freq);
1283	if (config->p2p_cli_probe)
1284		fprintf(f, "p2p_cli_probe=%d\n", config->p2p_cli_probe);
1285	if (config->p2p_go_freq_change_policy != DEFAULT_P2P_GO_FREQ_MOVE)
1286		fprintf(f, "p2p_go_freq_change_policy=%u\n",
1287			config->p2p_go_freq_change_policy);
1288	if (WPA_GET_BE32(config->ip_addr_go))
1289		fprintf(f, "ip_addr_go=%u.%u.%u.%u\n",
1290			config->ip_addr_go[0], config->ip_addr_go[1],
1291			config->ip_addr_go[2], config->ip_addr_go[3]);
1292	if (WPA_GET_BE32(config->ip_addr_mask))
1293		fprintf(f, "ip_addr_mask=%u.%u.%u.%u\n",
1294			config->ip_addr_mask[0], config->ip_addr_mask[1],
1295			config->ip_addr_mask[2], config->ip_addr_mask[3]);
1296	if (WPA_GET_BE32(config->ip_addr_start))
1297		fprintf(f, "ip_addr_start=%u.%u.%u.%u\n",
1298			config->ip_addr_start[0], config->ip_addr_start[1],
1299			config->ip_addr_start[2], config->ip_addr_start[3]);
1300	if (WPA_GET_BE32(config->ip_addr_end))
1301		fprintf(f, "ip_addr_end=%u.%u.%u.%u\n",
1302			config->ip_addr_end[0], config->ip_addr_end[1],
1303			config->ip_addr_end[2], config->ip_addr_end[3]);
1304#endif /* CONFIG_P2P */
1305	if (config->country[0] && config->country[1]) {
1306		fprintf(f, "country=%c%c\n",
1307			config->country[0], config->country[1]);
1308	}
1309	if (config->bss_max_count != DEFAULT_BSS_MAX_COUNT)
1310		fprintf(f, "bss_max_count=%u\n", config->bss_max_count);
1311	if (config->bss_expiration_age != DEFAULT_BSS_EXPIRATION_AGE)
1312		fprintf(f, "bss_expiration_age=%u\n",
1313			config->bss_expiration_age);
1314	if (config->bss_expiration_scan_count !=
1315	    DEFAULT_BSS_EXPIRATION_SCAN_COUNT)
1316		fprintf(f, "bss_expiration_scan_count=%u\n",
1317			config->bss_expiration_scan_count);
1318	if (config->filter_ssids)
1319		fprintf(f, "filter_ssids=%d\n", config->filter_ssids);
1320	if (config->filter_rssi)
1321		fprintf(f, "filter_rssi=%d\n", config->filter_rssi);
1322	if (config->max_num_sta != DEFAULT_MAX_NUM_STA)
1323		fprintf(f, "max_num_sta=%u\n", config->max_num_sta);
1324	if (config->ap_isolate != DEFAULT_AP_ISOLATE)
1325		fprintf(f, "ap_isolate=%u\n", config->ap_isolate);
1326	if (config->disassoc_low_ack)
1327		fprintf(f, "disassoc_low_ack=%d\n", config->disassoc_low_ack);
1328#ifdef CONFIG_HS20
1329	if (config->hs20)
1330		fprintf(f, "hs20=1\n");
1331#endif /* CONFIG_HS20 */
1332#ifdef CONFIG_INTERWORKING
1333	if (config->interworking)
1334		fprintf(f, "interworking=%d\n", config->interworking);
1335	if (!is_zero_ether_addr(config->hessid))
1336		fprintf(f, "hessid=" MACSTR "\n", MAC2STR(config->hessid));
1337	if (config->access_network_type != DEFAULT_ACCESS_NETWORK_TYPE)
1338		fprintf(f, "access_network_type=%d\n",
1339			config->access_network_type);
1340	if (config->go_interworking)
1341		fprintf(f, "go_interworking=%d\n", config->go_interworking);
1342	if (config->go_access_network_type)
1343		fprintf(f, "go_access_network_type=%d\n",
1344			config->go_access_network_type);
1345	if (config->go_internet)
1346		fprintf(f, "go_internet=%d\n", config->go_internet);
1347	if (config->go_venue_group)
1348		fprintf(f, "go_venue_group=%d\n", config->go_venue_group);
1349	if (config->go_venue_type)
1350		fprintf(f, "go_venue_type=%d\n", config->go_venue_type);
1351#endif /* CONFIG_INTERWORKING */
1352	if (config->pbc_in_m1)
1353		fprintf(f, "pbc_in_m1=%d\n", config->pbc_in_m1);
1354	if (config->wps_nfc_pw_from_config) {
1355		if (config->wps_nfc_dev_pw_id)
1356			fprintf(f, "wps_nfc_dev_pw_id=%d\n",
1357				config->wps_nfc_dev_pw_id);
1358		write_global_bin(f, "wps_nfc_dh_pubkey",
1359				 config->wps_nfc_dh_pubkey);
1360		write_global_bin(f, "wps_nfc_dh_privkey",
1361				 config->wps_nfc_dh_privkey);
1362		write_global_bin(f, "wps_nfc_dev_pw", config->wps_nfc_dev_pw);
1363	}
1364
1365	if (config->ext_password_backend)
1366		fprintf(f, "ext_password_backend=%s\n",
1367			config->ext_password_backend);
1368	if (config->p2p_go_max_inactivity != DEFAULT_P2P_GO_MAX_INACTIVITY)
1369		fprintf(f, "p2p_go_max_inactivity=%d\n",
1370			config->p2p_go_max_inactivity);
1371	if (config->auto_interworking)
1372		fprintf(f, "auto_interworking=%d\n",
1373			config->auto_interworking);
1374	if (config->okc)
1375		fprintf(f, "okc=%d\n", config->okc);
1376	if (config->pmf)
1377		fprintf(f, "pmf=%d\n", config->pmf);
1378	if (config->dtim_period)
1379		fprintf(f, "dtim_period=%d\n", config->dtim_period);
1380	if (config->beacon_int)
1381		fprintf(f, "beacon_int=%d\n", config->beacon_int);
1382
1383	if (config->sae_groups) {
1384		int i;
1385		fprintf(f, "sae_groups=");
1386		for (i = 0; config->sae_groups[i] > 0; i++) {
1387			fprintf(f, "%s%d", i > 0 ? " " : "",
1388				config->sae_groups[i]);
1389		}
1390		fprintf(f, "\n");
1391	}
1392
1393	if (config->ap_vendor_elements) {
1394		int i, len = wpabuf_len(config->ap_vendor_elements);
1395		const u8 *p = wpabuf_head_u8(config->ap_vendor_elements);
1396		if (len > 0) {
1397			fprintf(f, "ap_vendor_elements=");
1398			for (i = 0; i < len; i++)
1399				fprintf(f, "%02x", *p++);
1400			fprintf(f, "\n");
1401		}
1402	}
1403
1404	if (config->ignore_old_scan_res)
1405		fprintf(f, "ignore_old_scan_res=%d\n",
1406			config->ignore_old_scan_res);
1407
1408	if (config->freq_list && config->freq_list[0]) {
1409		int i;
1410		fprintf(f, "freq_list=");
1411		for (i = 0; config->freq_list[i]; i++) {
1412			fprintf(f, "%s%d", i > 0 ? " " : "",
1413				config->freq_list[i]);
1414		}
1415		fprintf(f, "\n");
1416	}
1417	if (config->scan_cur_freq != DEFAULT_SCAN_CUR_FREQ)
1418		fprintf(f, "scan_cur_freq=%d\n", config->scan_cur_freq);
1419
1420	if (config->sched_scan_interval)
1421		fprintf(f, "sched_scan_interval=%u\n",
1422			config->sched_scan_interval);
1423
1424	if (config->sched_scan_start_delay)
1425		fprintf(f, "sched_scan_start_delay=%u\n",
1426			config->sched_scan_start_delay);
1427
1428	if (config->external_sim)
1429		fprintf(f, "external_sim=%d\n", config->external_sim);
1430
1431	if (config->tdls_external_control)
1432		fprintf(f, "tdls_external_control=%d\n",
1433			config->tdls_external_control);
1434
1435	if (config->wowlan_triggers)
1436		fprintf(f, "wowlan_triggers=%s\n",
1437			config->wowlan_triggers);
1438
1439	if (config->bgscan)
1440		fprintf(f, "bgscan=\"%s\"\n", config->bgscan);
1441
1442	if (config->autoscan)
1443		fprintf(f, "autoscan=%s\n", config->autoscan);
1444
1445	if (config->p2p_search_delay != DEFAULT_P2P_SEARCH_DELAY)
1446		fprintf(f, "p2p_search_delay=%u\n",
1447			config->p2p_search_delay);
1448
1449	if (config->mac_addr)
1450		fprintf(f, "mac_addr=%d\n", config->mac_addr);
1451
1452	if (config->rand_addr_lifetime != DEFAULT_RAND_ADDR_LIFETIME)
1453		fprintf(f, "rand_addr_lifetime=%u\n",
1454			config->rand_addr_lifetime);
1455
1456	if (config->preassoc_mac_addr)
1457		fprintf(f, "preassoc_mac_addr=%d\n", config->preassoc_mac_addr);
1458
1459	if (config->key_mgmt_offload != DEFAULT_KEY_MGMT_OFFLOAD)
1460		fprintf(f, "key_mgmt_offload=%d\n", config->key_mgmt_offload);
1461
1462	if (config->user_mpm != DEFAULT_USER_MPM)
1463		fprintf(f, "user_mpm=%d\n", config->user_mpm);
1464
1465	if (config->max_peer_links != DEFAULT_MAX_PEER_LINKS)
1466		fprintf(f, "max_peer_links=%d\n", config->max_peer_links);
1467
1468	if (config->cert_in_cb != DEFAULT_CERT_IN_CB)
1469		fprintf(f, "cert_in_cb=%d\n", config->cert_in_cb);
1470
1471	if (config->mesh_max_inactivity != DEFAULT_MESH_MAX_INACTIVITY)
1472		fprintf(f, "mesh_max_inactivity=%d\n",
1473			config->mesh_max_inactivity);
1474
1475	if (config->dot11RSNASAERetransPeriod !=
1476	    DEFAULT_DOT11_RSNA_SAE_RETRANS_PERIOD)
1477		fprintf(f, "dot11RSNASAERetransPeriod=%d\n",
1478			config->dot11RSNASAERetransPeriod);
1479
1480	if (config->passive_scan)
1481		fprintf(f, "passive_scan=%d\n", config->passive_scan);
1482
1483	if (config->reassoc_same_bss_optim)
1484		fprintf(f, "reassoc_same_bss_optim=%d\n",
1485			config->reassoc_same_bss_optim);
1486
1487	if (config->wps_priority)
1488		fprintf(f, "wps_priority=%d\n", config->wps_priority);
1489
1490	if (config->wpa_rsc_relaxation != DEFAULT_WPA_RSC_RELAXATION)
1491		fprintf(f, "wpa_rsc_relaxation=%d\n",
1492			config->wpa_rsc_relaxation);
1493
1494	if (config->sched_scan_plans)
1495		fprintf(f, "sched_scan_plans=%s\n", config->sched_scan_plans);
1496
1497#ifdef CONFIG_MBO
1498	if (config->non_pref_chan)
1499		fprintf(f, "non_pref_chan=%s\n", config->non_pref_chan);
1500	if (config->mbo_cell_capa != DEFAULT_MBO_CELL_CAPA)
1501		fprintf(f, "mbo_cell_capa=%u\n", config->mbo_cell_capa);
1502	if (config->disassoc_imminent_rssi_threshold !=
1503	    DEFAULT_DISASSOC_IMMINENT_RSSI_THRESHOLD)
1504		fprintf(f, "disassoc_imminent_rssi_threshold=%d\n",
1505			config->disassoc_imminent_rssi_threshold);
1506	if (config->oce != DEFAULT_OCE_SUPPORT)
1507		fprintf(f, "oce=%u\n", config->oce);
1508#endif /* CONFIG_MBO */
1509
1510	if (config->gas_address3)
1511		fprintf(f, "gas_address3=%d\n", config->gas_address3);
1512
1513	if (config->ftm_responder)
1514		fprintf(f, "ftm_responder=%d\n", config->ftm_responder);
1515	if (config->ftm_initiator)
1516		fprintf(f, "ftm_initiator=%d\n", config->ftm_initiator);
1517
1518	if (config->osu_dir)
1519		fprintf(f, "osu_dir=%s\n", config->osu_dir);
1520
1521	if (config->fst_group_id)
1522		fprintf(f, "fst_group_id=%s\n", config->fst_group_id);
1523	if (config->fst_priority)
1524		fprintf(f, "fst_priority=%d\n", config->fst_priority);
1525	if (config->fst_llt)
1526		fprintf(f, "fst_llt=%d\n", config->fst_llt);
1527
1528	if (config->gas_rand_addr_lifetime != DEFAULT_RAND_ADDR_LIFETIME)
1529		fprintf(f, "gas_rand_addr_lifetime=%u\n",
1530			config->gas_rand_addr_lifetime);
1531	if (config->gas_rand_mac_addr)
1532		fprintf(f, "gas_rand_mac_addr=%d\n", config->gas_rand_mac_addr);
1533	if (config->dpp_config_processing)
1534		fprintf(f, "dpp_config_processing=%d\n",
1535			config->dpp_config_processing);
1536	if (config->coloc_intf_reporting)
1537		fprintf(f, "coloc_intf_reporting=%d\n",
1538			config->coloc_intf_reporting);
1539	if (config->p2p_device_random_mac_addr)
1540		fprintf(f, "p2p_device_random_mac_addr=%d\n",
1541			config->p2p_device_random_mac_addr);
1542	if (!is_zero_ether_addr(config->p2p_device_persistent_mac_addr))
1543		fprintf(f, "p2p_device_persistent_mac_addr=" MACSTR "\n",
1544			MAC2STR(config->p2p_device_persistent_mac_addr));
1545	if (config->p2p_interface_random_mac_addr)
1546		fprintf(f, "p2p_interface_random_mac_addr=%d\n",
1547			config->p2p_interface_random_mac_addr);
1548	if (config->disable_btm)
1549		fprintf(f, "disable_btm=1\n");
1550}
1551
1552#endif /* CONFIG_NO_CONFIG_WRITE */
1553
1554
1555int wpa_config_write(const char *name, struct wpa_config *config)
1556{
1557#ifndef CONFIG_NO_CONFIG_WRITE
1558	FILE *f;
1559	struct wpa_ssid *ssid;
1560	struct wpa_cred *cred;
1561#ifndef CONFIG_NO_CONFIG_BLOBS
1562	struct wpa_config_blob *blob;
1563#endif /* CONFIG_NO_CONFIG_BLOBS */
1564	int ret = 0;
1565	const char *orig_name = name;
1566	int tmp_len = os_strlen(name) + 5; /* allow space for .tmp suffix */
1567	char *tmp_name = os_malloc(tmp_len);
1568
1569	if (tmp_name) {
1570		os_snprintf(tmp_name, tmp_len, "%s.tmp", name);
1571		name = tmp_name;
1572	}
1573
1574	wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name);
1575
1576	f = fopen(name, "w");
1577	if (f == NULL) {
1578		wpa_printf(MSG_DEBUG, "Failed to open '%s' for writing", name);
1579		os_free(tmp_name);
1580		return -1;
1581	}
1582
1583	wpa_config_write_global(f, config);
1584
1585	for (cred = config->cred; cred; cred = cred->next) {
1586		if (cred->temporary)
1587			continue;
1588		fprintf(f, "\ncred={\n");
1589		wpa_config_write_cred(f, cred);
1590		fprintf(f, "}\n");
1591	}
1592
1593	for (ssid = config->ssid; ssid; ssid = ssid->next) {
1594		if (ssid->key_mgmt == WPA_KEY_MGMT_WPS || ssid->temporary)
1595			continue; /* do not save temporary networks */
1596		if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
1597		    !ssid->passphrase)
1598			continue; /* do not save invalid network */
1599		fprintf(f, "\nnetwork={\n");
1600		wpa_config_write_network(f, ssid);
1601		fprintf(f, "}\n");
1602	}
1603
1604#ifndef CONFIG_NO_CONFIG_BLOBS
1605	for (blob = config->blobs; blob; blob = blob->next) {
1606		ret = wpa_config_write_blob(f, blob);
1607		if (ret)
1608			break;
1609	}
1610#endif /* CONFIG_NO_CONFIG_BLOBS */
1611
1612	os_fdatasync(f);
1613
1614	fclose(f);
1615
1616	if (tmp_name) {
1617		int chmod_ret = 0;
1618
1619#ifdef ANDROID
1620		chmod_ret = chmod(tmp_name,
1621				  S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
1622#endif /* ANDROID */
1623		if (chmod_ret != 0 || rename(tmp_name, orig_name) != 0)
1624			ret = -1;
1625
1626		os_free(tmp_name);
1627	}
1628
1629	wpa_printf(MSG_DEBUG, "Configuration file '%s' written %ssuccessfully",
1630		   orig_name, ret ? "un" : "");
1631	return ret;
1632#else /* CONFIG_NO_CONFIG_WRITE */
1633	return -1;
1634#endif /* CONFIG_NO_CONFIG_WRITE */
1635}
1636