config_file.c revision 4171258d30a612645aa061cede62233b5c58ca2a 
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	write_int(f, "proactive_key_caching", ssid->proactive_key_caching, -1);
751	INT(disabled);
752	INT(peerkey);
753	INT(mixed_cell);
754#ifdef CONFIG_IEEE80211W
755	write_int(f, "ieee80211w", ssid->ieee80211w,
756		  MGMT_FRAME_PROTECTION_DEFAULT);
757#endif /* CONFIG_IEEE80211W */
758	STR(id_str);
759#ifdef CONFIG_P2P
760	write_go_p2p_dev_addr(f, ssid);
761	write_p2p_client_list(f, ssid);
762	write_psk_list(f, ssid);
763#endif /* CONFIG_P2P */
764	INT(ap_max_inactivity);
765	INT(dtim_period);
766	INT(beacon_int);
767#ifdef CONFIG_MACSEC
768	INT(macsec_policy);
769#endif /* CONFIG_MACSEC */
770#ifdef CONFIG_HS20
771	INT(update_identifier);
772#endif /* CONFIG_HS20 */
773	write_int(f, "mac_addr", ssid->mac_addr, -1);
774#ifdef CONFIG_MESH
775	STR(mesh_basic_rates);
776	INT_DEF(dot11MeshMaxRetries, DEFAULT_MESH_MAX_RETRIES);
777	INT_DEF(dot11MeshRetryTimeout, DEFAULT_MESH_RETRY_TIMEOUT);
778	INT_DEF(dot11MeshConfirmTimeout, DEFAULT_MESH_CONFIRM_TIMEOUT);
779	INT_DEF(dot11MeshHoldingTimeout, DEFAULT_MESH_HOLDING_TIMEOUT);
780#endif /* CONFIG_MESH */
781	INT(wpa_ptk_rekey);
782	INT(ignore_broadcast_ssid);
783#ifdef CONFIG_HT_OVERRIDES
784	INT_DEF(disable_ht, DEFAULT_DISABLE_HT);
785	INT_DEF(disable_ht40, DEFAULT_DISABLE_HT40);
786	INT_DEF(disable_sgi, DEFAULT_DISABLE_SGI);
787	INT_DEF(disable_ldpc, DEFAULT_DISABLE_LDPC);
788	INT(ht40_intolerant);
789	INT_DEF(disable_max_amsdu, DEFAULT_DISABLE_MAX_AMSDU);
790	INT_DEF(ampdu_factor, DEFAULT_AMPDU_FACTOR);
791	INT_DEF(ampdu_density, DEFAULT_AMPDU_DENSITY);
792	STR(ht_mcs);
793#endif /* CONFIG_HT_OVERRIDES */
794#ifdef CONFIG_VHT_OVERRIDES
795	INT(disable_vht);
796	INT(vht_capa);
797	INT(vht_capa_mask);
798	INT_DEF(vht_rx_mcs_nss_1, -1);
799	INT_DEF(vht_rx_mcs_nss_2, -1);
800	INT_DEF(vht_rx_mcs_nss_3, -1);
801	INT_DEF(vht_rx_mcs_nss_4, -1);
802	INT_DEF(vht_rx_mcs_nss_5, -1);
803	INT_DEF(vht_rx_mcs_nss_6, -1);
804	INT_DEF(vht_rx_mcs_nss_7, -1);
805	INT_DEF(vht_rx_mcs_nss_8, -1);
806	INT_DEF(vht_tx_mcs_nss_1, -1);
807	INT_DEF(vht_tx_mcs_nss_2, -1);
808	INT_DEF(vht_tx_mcs_nss_3, -1);
809	INT_DEF(vht_tx_mcs_nss_4, -1);
810	INT_DEF(vht_tx_mcs_nss_5, -1);
811	INT_DEF(vht_tx_mcs_nss_6, -1);
812	INT_DEF(vht_tx_mcs_nss_7, -1);
813	INT_DEF(vht_tx_mcs_nss_8, -1);
814#endif /* CONFIG_VHT_OVERRIDES */
815
816#undef STR
817#undef INT
818#undef INT_DEF
819}
820
821
822static void wpa_config_write_cred(FILE *f, struct wpa_cred *cred)
823{
824	size_t i;
825
826	if (cred->priority)
827		fprintf(f, "\tpriority=%d\n", cred->priority);
828	if (cred->pcsc)
829		fprintf(f, "\tpcsc=%d\n", cred->pcsc);
830	if (cred->realm)
831		fprintf(f, "\trealm=\"%s\"\n", cred->realm);
832	if (cred->username)
833		fprintf(f, "\tusername=\"%s\"\n", cred->username);
834	if (cred->password && cred->ext_password)
835		fprintf(f, "\tpassword=ext:%s\n", cred->password);
836	else if (cred->password)
837		fprintf(f, "\tpassword=\"%s\"\n", cred->password);
838	if (cred->ca_cert)
839		fprintf(f, "\tca_cert=\"%s\"\n", cred->ca_cert);
840	if (cred->client_cert)
841		fprintf(f, "\tclient_cert=\"%s\"\n", cred->client_cert);
842	if (cred->private_key)
843		fprintf(f, "\tprivate_key=\"%s\"\n", cred->private_key);
844	if (cred->private_key_passwd)
845		fprintf(f, "\tprivate_key_passwd=\"%s\"\n",
846			cred->private_key_passwd);
847	if (cred->imsi)
848		fprintf(f, "\timsi=\"%s\"\n", cred->imsi);
849	if (cred->milenage)
850		fprintf(f, "\tmilenage=\"%s\"\n", cred->milenage);
851	for (i = 0; i < cred->num_domain; i++)
852		fprintf(f, "\tdomain=\"%s\"\n", cred->domain[i]);
853	if (cred->domain_suffix_match)
854		fprintf(f, "\tdomain_suffix_match=\"%s\"\n",
855			cred->domain_suffix_match);
856	if (cred->roaming_consortium_len) {
857		fprintf(f, "\troaming_consortium=");
858		for (i = 0; i < cred->roaming_consortium_len; i++)
859			fprintf(f, "%02x", cred->roaming_consortium[i]);
860		fprintf(f, "\n");
861	}
862	if (cred->eap_method) {
863		const char *name;
864		name = eap_get_name(cred->eap_method[0].vendor,
865				    cred->eap_method[0].method);
866		if (name)
867			fprintf(f, "\teap=%s\n", name);
868	}
869	if (cred->phase1)
870		fprintf(f, "\tphase1=\"%s\"\n", cred->phase1);
871	if (cred->phase2)
872		fprintf(f, "\tphase2=\"%s\"\n", cred->phase2);
873	if (cred->excluded_ssid) {
874		size_t j;
875		for (i = 0; i < cred->num_excluded_ssid; i++) {
876			struct excluded_ssid *e = &cred->excluded_ssid[i];
877			fprintf(f, "\texcluded_ssid=");
878			for (j = 0; j < e->ssid_len; j++)
879				fprintf(f, "%02x", e->ssid[j]);
880			fprintf(f, "\n");
881		}
882	}
883	if (cred->roaming_partner) {
884		for (i = 0; i < cred->num_roaming_partner; i++) {
885			struct roaming_partner *p = &cred->roaming_partner[i];
886			fprintf(f, "\troaming_partner=\"%s,%d,%u,%s\"\n",
887				p->fqdn, p->exact_match, p->priority,
888				p->country);
889		}
890	}
891	if (cred->update_identifier)
892		fprintf(f, "\tupdate_identifier=%d\n", cred->update_identifier);
893
894	if (cred->provisioning_sp)
895		fprintf(f, "\tprovisioning_sp=\"%s\"\n", cred->provisioning_sp);
896	if (cred->sp_priority)
897		fprintf(f, "\tsp_priority=%d\n", cred->sp_priority);
898
899	if (cred->min_dl_bandwidth_home)
900		fprintf(f, "\tmin_dl_bandwidth_home=%u\n",
901			cred->min_dl_bandwidth_home);
902	if (cred->min_ul_bandwidth_home)
903		fprintf(f, "\tmin_ul_bandwidth_home=%u\n",
904			cred->min_ul_bandwidth_home);
905	if (cred->min_dl_bandwidth_roaming)
906		fprintf(f, "\tmin_dl_bandwidth_roaming=%u\n",
907			cred->min_dl_bandwidth_roaming);
908	if (cred->min_ul_bandwidth_roaming)
909		fprintf(f, "\tmin_ul_bandwidth_roaming=%u\n",
910			cred->min_ul_bandwidth_roaming);
911
912	if (cred->max_bss_load)
913		fprintf(f, "\tmax_bss_load=%u\n",
914			cred->max_bss_load);
915
916	if (cred->ocsp)
917		fprintf(f, "\tocsp=%d\n", cred->ocsp);
918
919	if (cred->num_req_conn_capab) {
920		for (i = 0; i < cred->num_req_conn_capab; i++) {
921			int *ports;
922
923			fprintf(f, "\treq_conn_capab=%u",
924				cred->req_conn_capab_proto[i]);
925			ports = cred->req_conn_capab_port[i];
926			if (ports) {
927				int j;
928				for (j = 0; ports[j] != -1; j++) {
929					fprintf(f, "%s%d", j > 0 ? "," : ":",
930						ports[j]);
931				}
932			}
933			fprintf(f, "\n");
934		}
935	}
936
937	if (cred->required_roaming_consortium_len) {
938		fprintf(f, "\trequired_roaming_consortium=");
939		for (i = 0; i < cred->required_roaming_consortium_len; i++)
940			fprintf(f, "%02x",
941				cred->required_roaming_consortium[i]);
942		fprintf(f, "\n");
943	}
944
945	if (cred->sim_num != DEFAULT_USER_SELECTED_SIM)
946		fprintf(f, "\tsim_num=%d\n", cred->sim_num);
947}
948
949
950#ifndef CONFIG_NO_CONFIG_BLOBS
951static int wpa_config_write_blob(FILE *f, struct wpa_config_blob *blob)
952{
953	unsigned char *encoded;
954
955	encoded = base64_encode(blob->data, blob->len, NULL);
956	if (encoded == NULL)
957		return -1;
958
959	fprintf(f, "\nblob-base64-%s={\n%s}\n", blob->name, encoded);
960	os_free(encoded);
961	return 0;
962}
963#endif /* CONFIG_NO_CONFIG_BLOBS */
964
965
966static void write_global_bin(FILE *f, const char *field,
967			     const struct wpabuf *val)
968{
969	size_t i;
970	const u8 *pos;
971
972	if (val == NULL)
973		return;
974
975	fprintf(f, "%s=", field);
976	pos = wpabuf_head(val);
977	for (i = 0; i < wpabuf_len(val); i++)
978		fprintf(f, "%02X", *pos++);
979	fprintf(f, "\n");
980}
981
982
983static void wpa_config_write_global(FILE *f, struct wpa_config *config)
984{
985#ifdef CONFIG_CTRL_IFACE
986	if (config->ctrl_interface)
987		fprintf(f, "ctrl_interface=%s\n", config->ctrl_interface);
988	if (config->ctrl_interface_group)
989		fprintf(f, "ctrl_interface_group=%s\n",
990			config->ctrl_interface_group);
991#endif /* CONFIG_CTRL_IFACE */
992	if (config->eapol_version != DEFAULT_EAPOL_VERSION)
993		fprintf(f, "eapol_version=%d\n", config->eapol_version);
994	if (config->ap_scan != DEFAULT_AP_SCAN)
995		fprintf(f, "ap_scan=%d\n", config->ap_scan);
996	if (config->disable_scan_offload)
997		fprintf(f, "disable_scan_offload=%d\n",
998			config->disable_scan_offload);
999	if (config->fast_reauth != DEFAULT_FAST_REAUTH)
1000		fprintf(f, "fast_reauth=%d\n", config->fast_reauth);
1001	if (config->opensc_engine_path)
1002		fprintf(f, "opensc_engine_path=%s\n",
1003			config->opensc_engine_path);
1004	if (config->pkcs11_engine_path)
1005		fprintf(f, "pkcs11_engine_path=%s\n",
1006			config->pkcs11_engine_path);
1007	if (config->pkcs11_module_path)
1008		fprintf(f, "pkcs11_module_path=%s\n",
1009			config->pkcs11_module_path);
1010	if (config->openssl_ciphers)
1011		fprintf(f, "openssl_ciphers=%s\n", config->openssl_ciphers);
1012	if (config->pcsc_reader)
1013		fprintf(f, "pcsc_reader=%s\n", config->pcsc_reader);
1014	if (config->pcsc_pin)
1015		fprintf(f, "pcsc_pin=%s\n", config->pcsc_pin);
1016	if (config->driver_param)
1017		fprintf(f, "driver_param=%s\n", config->driver_param);
1018	if (config->dot11RSNAConfigPMKLifetime)
1019		fprintf(f, "dot11RSNAConfigPMKLifetime=%u\n",
1020			config->dot11RSNAConfigPMKLifetime);
1021	if (config->dot11RSNAConfigPMKReauthThreshold)
1022		fprintf(f, "dot11RSNAConfigPMKReauthThreshold=%u\n",
1023			config->dot11RSNAConfigPMKReauthThreshold);
1024	if (config->dot11RSNAConfigSATimeout)
1025		fprintf(f, "dot11RSNAConfigSATimeout=%u\n",
1026			config->dot11RSNAConfigSATimeout);
1027	if (config->update_config)
1028		fprintf(f, "update_config=%d\n", config->update_config);
1029#ifdef CONFIG_WPS
1030	if (!is_nil_uuid(config->uuid)) {
1031		char buf[40];
1032		uuid_bin2str(config->uuid, buf, sizeof(buf));
1033		fprintf(f, "uuid=%s\n", buf);
1034	}
1035	if (config->device_name)
1036		fprintf(f, "device_name=%s\n", config->device_name);
1037	if (config->manufacturer)
1038		fprintf(f, "manufacturer=%s\n", config->manufacturer);
1039	if (config->model_name)
1040		fprintf(f, "model_name=%s\n", config->model_name);
1041	if (config->model_number)
1042		fprintf(f, "model_number=%s\n", config->model_number);
1043	if (config->serial_number)
1044		fprintf(f, "serial_number=%s\n", config->serial_number);
1045	{
1046		char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
1047		buf = wps_dev_type_bin2str(config->device_type,
1048					   _buf, sizeof(_buf));
1049		if (os_strcmp(buf, "0-00000000-0") != 0)
1050			fprintf(f, "device_type=%s\n", buf);
1051	}
1052	if (WPA_GET_BE32(config->os_version))
1053		fprintf(f, "os_version=%08x\n",
1054			WPA_GET_BE32(config->os_version));
1055	if (config->config_methods)
1056		fprintf(f, "config_methods=%s\n", config->config_methods);
1057	if (config->wps_cred_processing)
1058		fprintf(f, "wps_cred_processing=%d\n",
1059			config->wps_cred_processing);
1060	if (config->wps_vendor_ext_m1) {
1061		int i, len = wpabuf_len(config->wps_vendor_ext_m1);
1062		const u8 *p = wpabuf_head_u8(config->wps_vendor_ext_m1);
1063		if (len > 0) {
1064			fprintf(f, "wps_vendor_ext_m1=");
1065			for (i = 0; i < len; i++)
1066				fprintf(f, "%02x", *p++);
1067			fprintf(f, "\n");
1068		}
1069	}
1070#endif /* CONFIG_WPS */
1071#ifdef CONFIG_P2P
1072	if (config->p2p_listen_reg_class)
1073		fprintf(f, "p2p_listen_reg_class=%d\n",
1074			config->p2p_listen_reg_class);
1075	if (config->p2p_listen_channel)
1076		fprintf(f, "p2p_listen_channel=%d\n",
1077			config->p2p_listen_channel);
1078	if (config->p2p_oper_reg_class)
1079		fprintf(f, "p2p_oper_reg_class=%d\n",
1080			config->p2p_oper_reg_class);
1081	if (config->p2p_oper_channel)
1082		fprintf(f, "p2p_oper_channel=%d\n", config->p2p_oper_channel);
1083	if (config->p2p_go_intent != DEFAULT_P2P_GO_INTENT)
1084		fprintf(f, "p2p_go_intent=%d\n", config->p2p_go_intent);
1085	if (config->p2p_ssid_postfix)
1086		fprintf(f, "p2p_ssid_postfix=%s\n", config->p2p_ssid_postfix);
1087	if (config->persistent_reconnect)
1088		fprintf(f, "persistent_reconnect=%d\n",
1089			config->persistent_reconnect);
1090	if (config->p2p_intra_bss != DEFAULT_P2P_INTRA_BSS)
1091		fprintf(f, "p2p_intra_bss=%d\n", config->p2p_intra_bss);
1092	if (config->p2p_group_idle)
1093		fprintf(f, "p2p_group_idle=%d\n", config->p2p_group_idle);
1094	if (config->p2p_passphrase_len)
1095		fprintf(f, "p2p_passphrase_len=%u\n",
1096			config->p2p_passphrase_len);
1097	if (config->p2p_pref_chan) {
1098		unsigned int i;
1099		fprintf(f, "p2p_pref_chan=");
1100		for (i = 0; i < config->num_p2p_pref_chan; i++) {
1101			fprintf(f, "%s%u:%u", i > 0 ? "," : "",
1102				config->p2p_pref_chan[i].op_class,
1103				config->p2p_pref_chan[i].chan);
1104		}
1105		fprintf(f, "\n");
1106	}
1107	if (config->p2p_no_go_freq.num) {
1108		char *val = freq_range_list_str(&config->p2p_no_go_freq);
1109		if (val) {
1110			fprintf(f, "p2p_no_go_freq=%s\n", val);
1111			os_free(val);
1112		}
1113	}
1114	if (config->p2p_add_cli_chan)
1115		fprintf(f, "p2p_add_cli_chan=%d\n", config->p2p_add_cli_chan);
1116	if (config->p2p_optimize_listen_chan !=
1117	    DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN)
1118		fprintf(f, "p2p_optimize_listen_chan=%d\n",
1119			config->p2p_optimize_listen_chan);
1120	if (config->p2p_go_ht40)
1121		fprintf(f, "p2p_go_ht40=%d\n", config->p2p_go_ht40);
1122	if (config->p2p_go_vht)
1123		fprintf(f, "p2p_go_vht=%d\n", config->p2p_go_vht);
1124	if (config->p2p_go_ctwindow != DEFAULT_P2P_GO_CTWINDOW)
1125		fprintf(f, "p2p_go_ctwindow=%d\n", config->p2p_go_ctwindow);
1126	if (config->p2p_disabled)
1127		fprintf(f, "p2p_disabled=%d\n", config->p2p_disabled);
1128	if (config->p2p_no_group_iface)
1129		fprintf(f, "p2p_no_group_iface=%d\n",
1130			config->p2p_no_group_iface);
1131	if (config->p2p_ignore_shared_freq)
1132		fprintf(f, "p2p_ignore_shared_freq=%d\n",
1133			config->p2p_ignore_shared_freq);
1134	if (config->p2p_cli_probe)
1135		fprintf(f, "p2p_cli_probe=%d\n", config->p2p_cli_probe);
1136#endif /* CONFIG_P2P */
1137	if (config->country[0] && config->country[1]) {
1138		fprintf(f, "country=%c%c\n",
1139			config->country[0], config->country[1]);
1140	}
1141	if (config->bss_max_count != DEFAULT_BSS_MAX_COUNT)
1142		fprintf(f, "bss_max_count=%u\n", config->bss_max_count);
1143	if (config->bss_expiration_age != DEFAULT_BSS_EXPIRATION_AGE)
1144		fprintf(f, "bss_expiration_age=%u\n",
1145			config->bss_expiration_age);
1146	if (config->bss_expiration_scan_count !=
1147	    DEFAULT_BSS_EXPIRATION_SCAN_COUNT)
1148		fprintf(f, "bss_expiration_scan_count=%u\n",
1149			config->bss_expiration_scan_count);
1150	if (config->filter_ssids)
1151		fprintf(f, "filter_ssids=%d\n", config->filter_ssids);
1152	if (config->max_num_sta != DEFAULT_MAX_NUM_STA)
1153		fprintf(f, "max_num_sta=%u\n", config->max_num_sta);
1154	if (config->disassoc_low_ack)
1155		fprintf(f, "disassoc_low_ack=%d\n", config->disassoc_low_ack);
1156#ifdef CONFIG_HS20
1157	if (config->hs20)
1158		fprintf(f, "hs20=1\n");
1159#endif /* CONFIG_HS20 */
1160#ifdef CONFIG_INTERWORKING
1161	if (config->interworking)
1162		fprintf(f, "interworking=%d\n", config->interworking);
1163	if (!is_zero_ether_addr(config->hessid))
1164		fprintf(f, "hessid=" MACSTR "\n", MAC2STR(config->hessid));
1165	if (config->access_network_type != DEFAULT_ACCESS_NETWORK_TYPE)
1166		fprintf(f, "access_network_type=%d\n",
1167			config->access_network_type);
1168#endif /* CONFIG_INTERWORKING */
1169	if (config->pbc_in_m1)
1170		fprintf(f, "pbc_in_m1=%d\n", config->pbc_in_m1);
1171	if (config->wps_nfc_pw_from_config) {
1172		if (config->wps_nfc_dev_pw_id)
1173			fprintf(f, "wps_nfc_dev_pw_id=%d\n",
1174				config->wps_nfc_dev_pw_id);
1175		write_global_bin(f, "wps_nfc_dh_pubkey",
1176				 config->wps_nfc_dh_pubkey);
1177		write_global_bin(f, "wps_nfc_dh_privkey",
1178				 config->wps_nfc_dh_privkey);
1179		write_global_bin(f, "wps_nfc_dev_pw", config->wps_nfc_dev_pw);
1180	}
1181
1182	if (config->ext_password_backend)
1183		fprintf(f, "ext_password_backend=%s\n",
1184			config->ext_password_backend);
1185	if (config->p2p_go_max_inactivity != DEFAULT_P2P_GO_MAX_INACTIVITY)
1186		fprintf(f, "p2p_go_max_inactivity=%d\n",
1187			config->p2p_go_max_inactivity);
1188	if (config->auto_interworking)
1189		fprintf(f, "auto_interworking=%d\n",
1190			config->auto_interworking);
1191	if (config->okc)
1192		fprintf(f, "okc=%d\n", config->okc);
1193	if (config->pmf)
1194		fprintf(f, "pmf=%d\n", config->pmf);
1195	if (config->dtim_period)
1196		fprintf(f, "dtim_period=%d\n", config->dtim_period);
1197	if (config->beacon_int)
1198		fprintf(f, "beacon_int=%d\n", config->beacon_int);
1199
1200	if (config->sae_groups) {
1201		int i;
1202		fprintf(f, "sae_groups=");
1203		for (i = 0; config->sae_groups[i] >= 0; i++) {
1204			fprintf(f, "%s%d", i > 0 ? " " : "",
1205				config->sae_groups[i]);
1206		}
1207		fprintf(f, "\n");
1208	}
1209
1210	if (config->ap_vendor_elements) {
1211		int i, len = wpabuf_len(config->ap_vendor_elements);
1212		const u8 *p = wpabuf_head_u8(config->ap_vendor_elements);
1213		if (len > 0) {
1214			fprintf(f, "ap_vendor_elements=");
1215			for (i = 0; i < len; i++)
1216				fprintf(f, "%02x", *p++);
1217			fprintf(f, "\n");
1218		}
1219	}
1220
1221	if (config->ignore_old_scan_res)
1222		fprintf(f, "ignore_old_scan_res=%d\n",
1223			config->ignore_old_scan_res);
1224
1225	if (config->freq_list && config->freq_list[0]) {
1226		int i;
1227		fprintf(f, "freq_list=");
1228		for (i = 0; config->freq_list[i]; i++) {
1229			fprintf(f, "%s%d", i > 0 ? " " : "",
1230				config->freq_list[i]);
1231		}
1232		fprintf(f, "\n");
1233	}
1234	if (config->scan_cur_freq != DEFAULT_SCAN_CUR_FREQ)
1235		fprintf(f, "scan_cur_freq=%d\n", config->scan_cur_freq);
1236
1237	if (config->sched_scan_interval)
1238		fprintf(f, "sched_scan_interval=%u\n",
1239			config->sched_scan_interval);
1240
1241	if (config->external_sim)
1242		fprintf(f, "external_sim=%d\n", config->external_sim);
1243
1244	if (config->tdls_external_control)
1245		fprintf(f, "tdls_external_control=%d\n",
1246			config->tdls_external_control);
1247
1248	if (config->wowlan_triggers)
1249		fprintf(f, "wowlan_triggers=%s\n",
1250			config->wowlan_triggers);
1251
1252	if (config->bgscan)
1253		fprintf(f, "bgscan=\"%s\"\n", config->bgscan);
1254
1255	if (config->p2p_search_delay != DEFAULT_P2P_SEARCH_DELAY)
1256		fprintf(f, "p2p_search_delay=%u\n",
1257			config->p2p_search_delay);
1258
1259	if (config->mac_addr)
1260		fprintf(f, "mac_addr=%d\n", config->mac_addr);
1261
1262	if (config->rand_addr_lifetime != DEFAULT_RAND_ADDR_LIFETIME)
1263		fprintf(f, "rand_addr_lifetime=%u\n",
1264			config->rand_addr_lifetime);
1265
1266	if (config->preassoc_mac_addr)
1267		fprintf(f, "preassoc_mac_addr=%d\n", config->preassoc_mac_addr);
1268
1269	if (config->key_mgmt_offload != DEFAULT_KEY_MGMT_OFFLOAD)
1270		fprintf(f, "key_mgmt_offload=%d\n", config->key_mgmt_offload);
1271
1272	if (config->user_mpm != DEFAULT_USER_MPM)
1273		fprintf(f, "user_mpm=%d\n", config->user_mpm);
1274
1275	if (config->max_peer_links != DEFAULT_MAX_PEER_LINKS)
1276		fprintf(f, "max_peer_links=%d\n", config->max_peer_links);
1277
1278	if (config->cert_in_cb != DEFAULT_CERT_IN_CB)
1279		fprintf(f, "cert_in_cb=%d\n", config->cert_in_cb);
1280
1281	if (config->mesh_max_inactivity != DEFAULT_MESH_MAX_INACTIVITY)
1282		fprintf(f, "mesh_max_inactivity=%d\n",
1283			config->mesh_max_inactivity);
1284
1285	if (config->passive_scan)
1286		fprintf(f, "passive_scan=%d\n", config->passive_scan);
1287
1288	if (config->reassoc_same_bss_optim)
1289		fprintf(f, "reassoc_same_bss_optim=%d\n",
1290			config->reassoc_same_bss_optim);
1291
1292	if (config->wps_priority)
1293		fprintf(f, "wps_priority=%d\n", config->wps_priority);
1294}
1295
1296#endif /* CONFIG_NO_CONFIG_WRITE */
1297
1298
1299int wpa_config_write(const char *name, struct wpa_config *config)
1300{
1301#ifndef CONFIG_NO_CONFIG_WRITE
1302	FILE *f;
1303	struct wpa_ssid *ssid;
1304	struct wpa_cred *cred;
1305#ifndef CONFIG_NO_CONFIG_BLOBS
1306	struct wpa_config_blob *blob;
1307#endif /* CONFIG_NO_CONFIG_BLOBS */
1308	int ret = 0;
1309	const char *orig_name = name;
1310	int tmp_len = os_strlen(name) + 5; /* allow space for .tmp suffix */
1311	char *tmp_name = os_malloc(tmp_len);
1312
1313	if (tmp_name) {
1314		os_snprintf(tmp_name, tmp_len, "%s.tmp", name);
1315		name = tmp_name;
1316	}
1317
1318	wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name);
1319
1320	f = fopen(name, "w");
1321	if (f == NULL) {
1322		wpa_printf(MSG_DEBUG, "Failed to open '%s' for writing", name);
1323		os_free(tmp_name);
1324		return -1;
1325	}
1326
1327	wpa_config_write_global(f, config);
1328
1329	for (cred = config->cred; cred; cred = cred->next) {
1330		if (cred->temporary)
1331			continue;
1332		fprintf(f, "\ncred={\n");
1333		wpa_config_write_cred(f, cred);
1334		fprintf(f, "}\n");
1335	}
1336
1337	for (ssid = config->ssid; ssid; ssid = ssid->next) {
1338		if (ssid->key_mgmt == WPA_KEY_MGMT_WPS || ssid->temporary)
1339			continue; /* do not save temporary networks */
1340		if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
1341		    !ssid->passphrase)
1342			continue; /* do not save invalid network */
1343		fprintf(f, "\nnetwork={\n");
1344		wpa_config_write_network(f, ssid);
1345		fprintf(f, "}\n");
1346	}
1347
1348#ifndef CONFIG_NO_CONFIG_BLOBS
1349	for (blob = config->blobs; blob; blob = blob->next) {
1350		ret = wpa_config_write_blob(f, blob);
1351		if (ret)
1352			break;
1353	}
1354#endif /* CONFIG_NO_CONFIG_BLOBS */
1355
1356	fclose(f);
1357
1358	if (tmp_name) {
1359		int chmod_ret = 0;
1360
1361#ifdef ANDROID
1362		chmod_ret = chmod(tmp_name,
1363				  S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
1364#endif /* ANDROID */
1365		if (chmod_ret != 0 || rename(tmp_name, orig_name) != 0)
1366			ret = -1;
1367
1368		os_free(tmp_name);
1369	}
1370
1371	wpa_printf(MSG_DEBUG, "Configuration file '%s' written %ssuccessfully",
1372		   orig_name, ret ? "un" : "");
1373	return ret;
1374#else /* CONFIG_NO_CONFIG_WRITE */
1375	return -1;
1376#endif /* CONFIG_NO_CONFIG_WRITE */
1377}
1378