config.c revision 88deb302e5a0b009dfddf4c22719665902ebf68d 
1/*
2 * WPA Supplicant / Configuration parser and common functions
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
9#include "includes.h"
10
11#include "common.h"
12#include "utils/uuid.h"
13#include "utils/ip_addr.h"
14#include "crypto/sha1.h"
15#include "rsn_supp/wpa.h"
16#include "eap_peer/eap.h"
17#include "p2p/p2p.h"
18#include "config.h"
19
20
21#if !defined(CONFIG_CTRL_IFACE) && defined(CONFIG_NO_CONFIG_WRITE)
22#define NO_CONFIG_WRITE
23#endif
24
25/*
26 * Structure for network configuration parsing. This data is used to implement
27 * a generic parser for each network block variable. The table of configuration
28 * variables is defined below in this file (ssid_fields[]).
29 */
30struct parse_data {
31	/* Configuration variable name */
32	char *name;
33
34	/* Parser function for this variable */
35	int (*parser)(const struct parse_data *data, struct wpa_ssid *ssid,
36		      int line, const char *value);
37
38#ifndef NO_CONFIG_WRITE
39	/* Writer function (i.e., to get the variable in text format from
40	 * internal presentation). */
41	char * (*writer)(const struct parse_data *data, struct wpa_ssid *ssid);
42#endif /* NO_CONFIG_WRITE */
43
44	/* Variable specific parameters for the parser. */
45	void *param1, *param2, *param3, *param4;
46
47	/* 0 = this variable can be included in debug output and ctrl_iface
48	 * 1 = this variable contains key/private data and it must not be
49	 *     included in debug output unless explicitly requested. In
50	 *     addition, this variable will not be readable through the
51	 *     ctrl_iface.
52	 */
53	int key_data;
54};
55
56
57static int wpa_config_parse_str(const struct parse_data *data,
58				struct wpa_ssid *ssid,
59				int line, const char *value)
60{
61	size_t res_len, *dst_len;
62	char **dst, *tmp;
63
64	if (os_strcmp(value, "NULL") == 0) {
65		wpa_printf(MSG_DEBUG, "Unset configuration string '%s'",
66			   data->name);
67		tmp = NULL;
68		res_len = 0;
69		goto set;
70	}
71
72	tmp = wpa_config_parse_string(value, &res_len);
73	if (tmp == NULL) {
74		wpa_printf(MSG_ERROR, "Line %d: failed to parse %s '%s'.",
75			   line, data->name,
76			   data->key_data ? "[KEY DATA REMOVED]" : value);
77		return -1;
78	}
79
80	if (data->key_data) {
81		wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
82				      (u8 *) tmp, res_len);
83	} else {
84		wpa_hexdump_ascii(MSG_MSGDUMP, data->name,
85				  (u8 *) tmp, res_len);
86	}
87
88	if (data->param3 && res_len < (size_t) data->param3) {
89		wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
90			   "min_len=%ld)", line, data->name,
91			   (unsigned long) res_len, (long) data->param3);
92		os_free(tmp);
93		return -1;
94	}
95
96	if (data->param4 && res_len > (size_t) data->param4) {
97		wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
98			   "max_len=%ld)", line, data->name,
99			   (unsigned long) res_len, (long) data->param4);
100		os_free(tmp);
101		return -1;
102	}
103
104set:
105	dst = (char **) (((u8 *) ssid) + (long) data->param1);
106	dst_len = (size_t *) (((u8 *) ssid) + (long) data->param2);
107	os_free(*dst);
108	*dst = tmp;
109	if (data->param2)
110		*dst_len = res_len;
111
112	return 0;
113}
114
115
116#ifndef NO_CONFIG_WRITE
117static char * wpa_config_write_string_ascii(const u8 *value, size_t len)
118{
119	char *buf;
120
121	buf = os_malloc(len + 3);
122	if (buf == NULL)
123		return NULL;
124	buf[0] = '"';
125	os_memcpy(buf + 1, value, len);
126	buf[len + 1] = '"';
127	buf[len + 2] = '\0';
128
129	return buf;
130}
131
132
133static char * wpa_config_write_string_hex(const u8 *value, size_t len)
134{
135	char *buf;
136
137	buf = os_zalloc(2 * len + 1);
138	if (buf == NULL)
139		return NULL;
140	wpa_snprintf_hex(buf, 2 * len + 1, value, len);
141
142	return buf;
143}
144
145
146static char * wpa_config_write_string(const u8 *value, size_t len)
147{
148	if (value == NULL)
149		return NULL;
150
151	if (is_hex(value, len))
152		return wpa_config_write_string_hex(value, len);
153	else
154		return wpa_config_write_string_ascii(value, len);
155}
156
157
158static char * wpa_config_write_str(const struct parse_data *data,
159				   struct wpa_ssid *ssid)
160{
161	size_t len;
162	char **src;
163
164	src = (char **) (((u8 *) ssid) + (long) data->param1);
165	if (*src == NULL)
166		return NULL;
167
168	if (data->param2)
169		len = *((size_t *) (((u8 *) ssid) + (long) data->param2));
170	else
171		len = os_strlen(*src);
172
173	return wpa_config_write_string((const u8 *) *src, len);
174}
175#endif /* NO_CONFIG_WRITE */
176
177
178static int wpa_config_parse_int(const struct parse_data *data,
179				struct wpa_ssid *ssid,
180				int line, const char *value)
181{
182	int val, *dst;
183	char *end;
184
185	dst = (int *) (((u8 *) ssid) + (long) data->param1);
186	val = strtol(value, &end, 0);
187	if (*end) {
188		wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
189			   line, value);
190		return -1;
191	}
192	*dst = val;
193	wpa_printf(MSG_MSGDUMP, "%s=%d (0x%x)", data->name, *dst, *dst);
194
195	if (data->param3 && *dst < (long) data->param3) {
196		wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
197			   "min_value=%ld)", line, data->name, *dst,
198			   (long) data->param3);
199		*dst = (long) data->param3;
200		return -1;
201	}
202
203	if (data->param4 && *dst > (long) data->param4) {
204		wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
205			   "max_value=%ld)", line, data->name, *dst,
206			   (long) data->param4);
207		*dst = (long) data->param4;
208		return -1;
209	}
210
211	return 0;
212}
213
214
215#ifndef NO_CONFIG_WRITE
216static char * wpa_config_write_int(const struct parse_data *data,
217				   struct wpa_ssid *ssid)
218{
219	int *src, res;
220	char *value;
221
222	src = (int *) (((u8 *) ssid) + (long) data->param1);
223
224	value = os_malloc(20);
225	if (value == NULL)
226		return NULL;
227	res = os_snprintf(value, 20, "%d", *src);
228	if (res < 0 || res >= 20) {
229		os_free(value);
230		return NULL;
231	}
232	value[20 - 1] = '\0';
233	return value;
234}
235#endif /* NO_CONFIG_WRITE */
236
237
238static int wpa_config_parse_bssid(const struct parse_data *data,
239				  struct wpa_ssid *ssid, int line,
240				  const char *value)
241{
242	if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
243	    os_strcmp(value, "any") == 0) {
244		ssid->bssid_set = 0;
245		wpa_printf(MSG_MSGDUMP, "BSSID any");
246		return 0;
247	}
248	if (hwaddr_aton(value, ssid->bssid)) {
249		wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID '%s'.",
250			   line, value);
251		return -1;
252	}
253	ssid->bssid_set = 1;
254	wpa_hexdump(MSG_MSGDUMP, "BSSID", ssid->bssid, ETH_ALEN);
255	return 0;
256}
257
258
259#ifndef NO_CONFIG_WRITE
260static char * wpa_config_write_bssid(const struct parse_data *data,
261				     struct wpa_ssid *ssid)
262{
263	char *value;
264	int res;
265
266	if (!ssid->bssid_set)
267		return NULL;
268
269	value = os_malloc(20);
270	if (value == NULL)
271		return NULL;
272	res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->bssid));
273	if (res < 0 || res >= 20) {
274		os_free(value);
275		return NULL;
276	}
277	value[20 - 1] = '\0';
278	return value;
279}
280#endif /* NO_CONFIG_WRITE */
281
282
283static int wpa_config_parse_psk(const struct parse_data *data,
284				struct wpa_ssid *ssid, int line,
285				const char *value)
286{
287#ifdef CONFIG_EXT_PASSWORD
288	if (os_strncmp(value, "ext:", 4) == 0) {
289		str_clear_free(ssid->passphrase);
290		ssid->passphrase = NULL;
291		ssid->psk_set = 0;
292		os_free(ssid->ext_psk);
293		ssid->ext_psk = os_strdup(value + 4);
294		if (ssid->ext_psk == NULL)
295			return -1;
296		wpa_printf(MSG_DEBUG, "PSK: External password '%s'",
297			   ssid->ext_psk);
298		return 0;
299	}
300#endif /* CONFIG_EXT_PASSWORD */
301
302	if (*value == '"') {
303#ifndef CONFIG_NO_PBKDF2
304		const char *pos;
305		size_t len;
306
307		value++;
308		pos = os_strrchr(value, '"');
309		if (pos)
310			len = pos - value;
311		else
312			len = os_strlen(value);
313		if (len < 8 || len > 63) {
314			wpa_printf(MSG_ERROR, "Line %d: Invalid passphrase "
315				   "length %lu (expected: 8..63) '%s'.",
316				   line, (unsigned long) len, value);
317			return -1;
318		}
319		wpa_hexdump_ascii_key(MSG_MSGDUMP, "PSK (ASCII passphrase)",
320				      (u8 *) value, len);
321		if (ssid->passphrase && os_strlen(ssid->passphrase) == len &&
322		    os_memcmp(ssid->passphrase, value, len) == 0)
323			return 0;
324		ssid->psk_set = 0;
325		str_clear_free(ssid->passphrase);
326		ssid->passphrase = dup_binstr(value, len);
327		if (ssid->passphrase == NULL)
328			return -1;
329		return 0;
330#else /* CONFIG_NO_PBKDF2 */
331		wpa_printf(MSG_ERROR, "Line %d: ASCII passphrase not "
332			   "supported.", line);
333		return -1;
334#endif /* CONFIG_NO_PBKDF2 */
335	}
336
337	if (hexstr2bin(value, ssid->psk, PMK_LEN) ||
338	    value[PMK_LEN * 2] != '\0') {
339		wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.",
340			   line, value);
341		return -1;
342	}
343
344	str_clear_free(ssid->passphrase);
345	ssid->passphrase = NULL;
346
347	ssid->psk_set = 1;
348	wpa_hexdump_key(MSG_MSGDUMP, "PSK", ssid->psk, PMK_LEN);
349	return 0;
350}
351
352
353#ifndef NO_CONFIG_WRITE
354static char * wpa_config_write_psk(const struct parse_data *data,
355				   struct wpa_ssid *ssid)
356{
357#ifdef CONFIG_EXT_PASSWORD
358	if (ssid->ext_psk) {
359		size_t len = 4 + os_strlen(ssid->ext_psk) + 1;
360		char *buf = os_malloc(len);
361		if (buf == NULL)
362			return NULL;
363		os_snprintf(buf, len, "ext:%s", ssid->ext_psk);
364		return buf;
365	}
366#endif /* CONFIG_EXT_PASSWORD */
367
368	if (ssid->passphrase)
369		return wpa_config_write_string_ascii(
370			(const u8 *) ssid->passphrase,
371			os_strlen(ssid->passphrase));
372
373	if (ssid->psk_set)
374		return wpa_config_write_string_hex(ssid->psk, PMK_LEN);
375
376	return NULL;
377}
378#endif /* NO_CONFIG_WRITE */
379
380
381static int wpa_config_parse_proto(const struct parse_data *data,
382				  struct wpa_ssid *ssid, int line,
383				  const char *value)
384{
385	int val = 0, last, errors = 0;
386	char *start, *end, *buf;
387
388	buf = os_strdup(value);
389	if (buf == NULL)
390		return -1;
391	start = buf;
392
393	while (*start != '\0') {
394		while (*start == ' ' || *start == '\t')
395			start++;
396		if (*start == '\0')
397			break;
398		end = start;
399		while (*end != ' ' && *end != '\t' && *end != '\0')
400			end++;
401		last = *end == '\0';
402		*end = '\0';
403		if (os_strcmp(start, "WPA") == 0)
404			val |= WPA_PROTO_WPA;
405		else if (os_strcmp(start, "RSN") == 0 ||
406			 os_strcmp(start, "WPA2") == 0)
407			val |= WPA_PROTO_RSN;
408		else if (os_strcmp(start, "OSEN") == 0)
409			val |= WPA_PROTO_OSEN;
410		else {
411			wpa_printf(MSG_ERROR, "Line %d: invalid proto '%s'",
412				   line, start);
413			errors++;
414		}
415
416		if (last)
417			break;
418		start = end + 1;
419	}
420	os_free(buf);
421
422	if (val == 0) {
423		wpa_printf(MSG_ERROR,
424			   "Line %d: no proto values configured.", line);
425		errors++;
426	}
427
428	wpa_printf(MSG_MSGDUMP, "proto: 0x%x", val);
429	ssid->proto = val;
430	return errors ? -1 : 0;
431}
432
433
434#ifndef NO_CONFIG_WRITE
435static char * wpa_config_write_proto(const struct parse_data *data,
436				     struct wpa_ssid *ssid)
437{
438	int ret;
439	char *buf, *pos, *end;
440
441	pos = buf = os_zalloc(20);
442	if (buf == NULL)
443		return NULL;
444	end = buf + 20;
445
446	if (ssid->proto & WPA_PROTO_WPA) {
447		ret = os_snprintf(pos, end - pos, "%sWPA",
448				  pos == buf ? "" : " ");
449		if (ret < 0 || ret >= end - pos)
450			return buf;
451		pos += ret;
452	}
453
454	if (ssid->proto & WPA_PROTO_RSN) {
455		ret = os_snprintf(pos, end - pos, "%sRSN",
456				  pos == buf ? "" : " ");
457		if (ret < 0 || ret >= end - pos)
458			return buf;
459		pos += ret;
460	}
461
462	if (ssid->proto & WPA_PROTO_OSEN) {
463		ret = os_snprintf(pos, end - pos, "%sOSEN",
464				  pos == buf ? "" : " ");
465		if (ret < 0 || ret >= end - pos)
466			return buf;
467		pos += ret;
468	}
469
470	if (pos == buf) {
471		os_free(buf);
472		buf = NULL;
473	}
474
475	return buf;
476}
477#endif /* NO_CONFIG_WRITE */
478
479
480static int wpa_config_parse_key_mgmt(const struct parse_data *data,
481				     struct wpa_ssid *ssid, int line,
482				     const char *value)
483{
484	int val = 0, last, errors = 0;
485	char *start, *end, *buf;
486
487	buf = os_strdup(value);
488	if (buf == NULL)
489		return -1;
490	start = buf;
491
492	while (*start != '\0') {
493		while (*start == ' ' || *start == '\t')
494			start++;
495		if (*start == '\0')
496			break;
497		end = start;
498		while (*end != ' ' && *end != '\t' && *end != '\0')
499			end++;
500		last = *end == '\0';
501		*end = '\0';
502		if (os_strcmp(start, "WPA-PSK") == 0)
503			val |= WPA_KEY_MGMT_PSK;
504		else if (os_strcmp(start, "WPA-EAP") == 0)
505			val |= WPA_KEY_MGMT_IEEE8021X;
506		else if (os_strcmp(start, "IEEE8021X") == 0)
507			val |= WPA_KEY_MGMT_IEEE8021X_NO_WPA;
508		else if (os_strcmp(start, "NONE") == 0)
509			val |= WPA_KEY_MGMT_NONE;
510		else if (os_strcmp(start, "WPA-NONE") == 0)
511			val |= WPA_KEY_MGMT_WPA_NONE;
512#ifdef CONFIG_IEEE80211R
513		else if (os_strcmp(start, "FT-PSK") == 0)
514			val |= WPA_KEY_MGMT_FT_PSK;
515		else if (os_strcmp(start, "FT-EAP") == 0)
516			val |= WPA_KEY_MGMT_FT_IEEE8021X;
517#endif /* CONFIG_IEEE80211R */
518#ifdef CONFIG_IEEE80211W
519		else if (os_strcmp(start, "WPA-PSK-SHA256") == 0)
520			val |= WPA_KEY_MGMT_PSK_SHA256;
521		else if (os_strcmp(start, "WPA-EAP-SHA256") == 0)
522			val |= WPA_KEY_MGMT_IEEE8021X_SHA256;
523#endif /* CONFIG_IEEE80211W */
524#ifdef CONFIG_WPS
525		else if (os_strcmp(start, "WPS") == 0)
526			val |= WPA_KEY_MGMT_WPS;
527#endif /* CONFIG_WPS */
528#ifdef CONFIG_SAE
529		else if (os_strcmp(start, "SAE") == 0)
530			val |= WPA_KEY_MGMT_SAE;
531		else if (os_strcmp(start, "FT-SAE") == 0)
532			val |= WPA_KEY_MGMT_FT_SAE;
533#endif /* CONFIG_SAE */
534#ifdef CONFIG_HS20
535		else if (os_strcmp(start, "OSEN") == 0)
536			val |= WPA_KEY_MGMT_OSEN;
537#endif /* CONFIG_HS20 */
538		else {
539			wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
540				   line, start);
541			errors++;
542		}
543
544		if (last)
545			break;
546		start = end + 1;
547	}
548	os_free(buf);
549
550	if (val == 0) {
551		wpa_printf(MSG_ERROR,
552			   "Line %d: no key_mgmt values configured.", line);
553		errors++;
554	}
555
556	wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val);
557	ssid->key_mgmt = val;
558	return errors ? -1 : 0;
559}
560
561
562#ifndef NO_CONFIG_WRITE
563static char * wpa_config_write_key_mgmt(const struct parse_data *data,
564					struct wpa_ssid *ssid)
565{
566	char *buf, *pos, *end;
567	int ret;
568
569	pos = buf = os_zalloc(100);
570	if (buf == NULL)
571		return NULL;
572	end = buf + 100;
573
574	if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
575		ret = os_snprintf(pos, end - pos, "%sWPA-PSK",
576				  pos == buf ? "" : " ");
577		if (ret < 0 || ret >= end - pos) {
578			end[-1] = '\0';
579			return buf;
580		}
581		pos += ret;
582	}
583
584	if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
585		ret = os_snprintf(pos, end - pos, "%sWPA-EAP",
586				  pos == buf ? "" : " ");
587		if (ret < 0 || ret >= end - pos) {
588			end[-1] = '\0';
589			return buf;
590		}
591		pos += ret;
592	}
593
594	if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
595		ret = os_snprintf(pos, end - pos, "%sIEEE8021X",
596				  pos == buf ? "" : " ");
597		if (ret < 0 || ret >= end - pos) {
598			end[-1] = '\0';
599			return buf;
600		}
601		pos += ret;
602	}
603
604	if (ssid->key_mgmt & WPA_KEY_MGMT_NONE) {
605		ret = os_snprintf(pos, end - pos, "%sNONE",
606				  pos == buf ? "" : " ");
607		if (ret < 0 || ret >= end - pos) {
608			end[-1] = '\0';
609			return buf;
610		}
611		pos += ret;
612	}
613
614	if (ssid->key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
615		ret = os_snprintf(pos, end - pos, "%sWPA-NONE",
616				  pos == buf ? "" : " ");
617		if (ret < 0 || ret >= end - pos) {
618			end[-1] = '\0';
619			return buf;
620		}
621		pos += ret;
622	}
623
624#ifdef CONFIG_IEEE80211R
625	if (ssid->key_mgmt & WPA_KEY_MGMT_FT_PSK) {
626		ret = os_snprintf(pos, end - pos, "%sFT-PSK",
627				  pos == buf ? "" : " ");
628		if (ret < 0 || ret >= end - pos) {
629			end[-1] = '\0';
630			return buf;
631		}
632		pos += ret;
633	}
634
635	if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
636		ret = os_snprintf(pos, end - pos, "%sFT-EAP",
637				  pos == buf ? "" : " ");
638		if (ret < 0 || ret >= end - pos) {
639			end[-1] = '\0';
640			return buf;
641		}
642		pos += ret;
643	}
644#endif /* CONFIG_IEEE80211R */
645
646#ifdef CONFIG_IEEE80211W
647	if (ssid->key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
648		ret = os_snprintf(pos, end - pos, "%sWPA-PSK-SHA256",
649				  pos == buf ? "" : " ");
650		if (ret < 0 || ret >= end - pos) {
651			end[-1] = '\0';
652			return buf;
653		}
654		pos += ret;
655	}
656
657	if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
658		ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SHA256",
659				  pos == buf ? "" : " ");
660		if (ret < 0 || ret >= end - pos) {
661			end[-1] = '\0';
662			return buf;
663		}
664		pos += ret;
665	}
666#endif /* CONFIG_IEEE80211W */
667
668#ifdef CONFIG_WPS
669	if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
670		ret = os_snprintf(pos, end - pos, "%sWPS",
671				  pos == buf ? "" : " ");
672		if (ret < 0 || ret >= end - pos) {
673			end[-1] = '\0';
674			return buf;
675		}
676		pos += ret;
677	}
678#endif /* CONFIG_WPS */
679
680	if (pos == buf) {
681		os_free(buf);
682		buf = NULL;
683	}
684
685	return buf;
686}
687#endif /* NO_CONFIG_WRITE */
688
689
690static int wpa_config_parse_cipher(int line, const char *value)
691{
692	int val = wpa_parse_cipher(value);
693	if (val < 0) {
694		wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
695			   line, value);
696		return -1;
697	}
698	if (val == 0) {
699		wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
700			   line);
701		return -1;
702	}
703	return val;
704}
705
706
707#ifndef NO_CONFIG_WRITE
708static char * wpa_config_write_cipher(int cipher)
709{
710	char *buf = os_zalloc(50);
711	if (buf == NULL)
712		return NULL;
713
714	if (wpa_write_ciphers(buf, buf + 50, cipher, " ") < 0) {
715		os_free(buf);
716		return NULL;
717	}
718
719	return buf;
720}
721#endif /* NO_CONFIG_WRITE */
722
723
724static int wpa_config_parse_pairwise(const struct parse_data *data,
725				     struct wpa_ssid *ssid, int line,
726				     const char *value)
727{
728	int val;
729	val = wpa_config_parse_cipher(line, value);
730	if (val == -1)
731		return -1;
732	if (val & ~WPA_ALLOWED_PAIRWISE_CIPHERS) {
733		wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
734			   "(0x%x).", line, val);
735		return -1;
736	}
737
738	wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
739	ssid->pairwise_cipher = val;
740	return 0;
741}
742
743
744#ifndef NO_CONFIG_WRITE
745static char * wpa_config_write_pairwise(const struct parse_data *data,
746					struct wpa_ssid *ssid)
747{
748	return wpa_config_write_cipher(ssid->pairwise_cipher);
749}
750#endif /* NO_CONFIG_WRITE */
751
752
753static int wpa_config_parse_group(const struct parse_data *data,
754				  struct wpa_ssid *ssid, int line,
755				  const char *value)
756{
757	int val;
758	val = wpa_config_parse_cipher(line, value);
759	if (val == -1)
760		return -1;
761	if (val & ~WPA_ALLOWED_GROUP_CIPHERS) {
762		wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
763			   "(0x%x).", line, val);
764		return -1;
765	}
766
767	wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
768	ssid->group_cipher = val;
769	return 0;
770}
771
772
773#ifndef NO_CONFIG_WRITE
774static char * wpa_config_write_group(const struct parse_data *data,
775				     struct wpa_ssid *ssid)
776{
777	return wpa_config_write_cipher(ssid->group_cipher);
778}
779#endif /* NO_CONFIG_WRITE */
780
781
782static int wpa_config_parse_auth_alg(const struct parse_data *data,
783				     struct wpa_ssid *ssid, int line,
784				     const char *value)
785{
786	int val = 0, last, errors = 0;
787	char *start, *end, *buf;
788
789	buf = os_strdup(value);
790	if (buf == NULL)
791		return -1;
792	start = buf;
793
794	while (*start != '\0') {
795		while (*start == ' ' || *start == '\t')
796			start++;
797		if (*start == '\0')
798			break;
799		end = start;
800		while (*end != ' ' && *end != '\t' && *end != '\0')
801			end++;
802		last = *end == '\0';
803		*end = '\0';
804		if (os_strcmp(start, "OPEN") == 0)
805			val |= WPA_AUTH_ALG_OPEN;
806		else if (os_strcmp(start, "SHARED") == 0)
807			val |= WPA_AUTH_ALG_SHARED;
808		else if (os_strcmp(start, "LEAP") == 0)
809			val |= WPA_AUTH_ALG_LEAP;
810		else {
811			wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
812				   line, start);
813			errors++;
814		}
815
816		if (last)
817			break;
818		start = end + 1;
819	}
820	os_free(buf);
821
822	if (val == 0) {
823		wpa_printf(MSG_ERROR,
824			   "Line %d: no auth_alg values configured.", line);
825		errors++;
826	}
827
828	wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
829	ssid->auth_alg = val;
830	return errors ? -1 : 0;
831}
832
833
834#ifndef NO_CONFIG_WRITE
835static char * wpa_config_write_auth_alg(const struct parse_data *data,
836					struct wpa_ssid *ssid)
837{
838	char *buf, *pos, *end;
839	int ret;
840
841	pos = buf = os_zalloc(30);
842	if (buf == NULL)
843		return NULL;
844	end = buf + 30;
845
846	if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) {
847		ret = os_snprintf(pos, end - pos, "%sOPEN",
848				  pos == buf ? "" : " ");
849		if (ret < 0 || ret >= end - pos) {
850			end[-1] = '\0';
851			return buf;
852		}
853		pos += ret;
854	}
855
856	if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) {
857		ret = os_snprintf(pos, end - pos, "%sSHARED",
858				  pos == buf ? "" : " ");
859		if (ret < 0 || ret >= end - pos) {
860			end[-1] = '\0';
861			return buf;
862		}
863		pos += ret;
864	}
865
866	if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) {
867		ret = os_snprintf(pos, end - pos, "%sLEAP",
868				  pos == buf ? "" : " ");
869		if (ret < 0 || ret >= end - pos) {
870			end[-1] = '\0';
871			return buf;
872		}
873		pos += ret;
874	}
875
876	if (pos == buf) {
877		os_free(buf);
878		buf = NULL;
879	}
880
881	return buf;
882}
883#endif /* NO_CONFIG_WRITE */
884
885
886static int * wpa_config_parse_int_array(const char *value)
887{
888	int *freqs;
889	size_t used, len;
890	const char *pos;
891
892	used = 0;
893	len = 10;
894	freqs = os_calloc(len + 1, sizeof(int));
895	if (freqs == NULL)
896		return NULL;
897
898	pos = value;
899	while (pos) {
900		while (*pos == ' ')
901			pos++;
902		if (used == len) {
903			int *n;
904			size_t i;
905			n = os_realloc_array(freqs, len * 2 + 1, sizeof(int));
906			if (n == NULL) {
907				os_free(freqs);
908				return NULL;
909			}
910			for (i = len; i <= len * 2; i++)
911				n[i] = 0;
912			freqs = n;
913			len *= 2;
914		}
915
916		freqs[used] = atoi(pos);
917		if (freqs[used] == 0)
918			break;
919		used++;
920		pos = os_strchr(pos + 1, ' ');
921	}
922
923	return freqs;
924}
925
926
927static int wpa_config_parse_scan_freq(const struct parse_data *data,
928				      struct wpa_ssid *ssid, int line,
929				      const char *value)
930{
931	int *freqs;
932
933	freqs = wpa_config_parse_int_array(value);
934	if (freqs == NULL)
935		return -1;
936	if (freqs[0] == 0) {
937		os_free(freqs);
938		freqs = NULL;
939	}
940	os_free(ssid->scan_freq);
941	ssid->scan_freq = freqs;
942
943	return 0;
944}
945
946
947static int wpa_config_parse_freq_list(const struct parse_data *data,
948				      struct wpa_ssid *ssid, int line,
949				      const char *value)
950{
951	int *freqs;
952
953	freqs = wpa_config_parse_int_array(value);
954	if (freqs == NULL)
955		return -1;
956	if (freqs[0] == 0) {
957		os_free(freqs);
958		freqs = NULL;
959	}
960	os_free(ssid->freq_list);
961	ssid->freq_list = freqs;
962
963	return 0;
964}
965
966
967#ifndef NO_CONFIG_WRITE
968static char * wpa_config_write_freqs(const struct parse_data *data,
969				     const int *freqs)
970{
971	char *buf, *pos, *end;
972	int i, ret;
973	size_t count;
974
975	if (freqs == NULL)
976		return NULL;
977
978	count = 0;
979	for (i = 0; freqs[i]; i++)
980		count++;
981
982	pos = buf = os_zalloc(10 * count + 1);
983	if (buf == NULL)
984		return NULL;
985	end = buf + 10 * count + 1;
986
987	for (i = 0; freqs[i]; i++) {
988		ret = os_snprintf(pos, end - pos, "%s%u",
989				  i == 0 ? "" : " ", freqs[i]);
990		if (ret < 0 || ret >= end - pos) {
991			end[-1] = '\0';
992			return buf;
993		}
994		pos += ret;
995	}
996
997	return buf;
998}
999
1000
1001static char * wpa_config_write_scan_freq(const struct parse_data *data,
1002					 struct wpa_ssid *ssid)
1003{
1004	return wpa_config_write_freqs(data, ssid->scan_freq);
1005}
1006
1007
1008static char * wpa_config_write_freq_list(const struct parse_data *data,
1009					 struct wpa_ssid *ssid)
1010{
1011	return wpa_config_write_freqs(data, ssid->freq_list);
1012}
1013#endif /* NO_CONFIG_WRITE */
1014
1015
1016#ifdef IEEE8021X_EAPOL
1017static int wpa_config_parse_eap(const struct parse_data *data,
1018				struct wpa_ssid *ssid, int line,
1019				const char *value)
1020{
1021	int last, errors = 0;
1022	char *start, *end, *buf;
1023	struct eap_method_type *methods = NULL, *tmp;
1024	size_t num_methods = 0;
1025
1026	buf = os_strdup(value);
1027	if (buf == NULL)
1028		return -1;
1029	start = buf;
1030
1031	while (*start != '\0') {
1032		while (*start == ' ' || *start == '\t')
1033			start++;
1034		if (*start == '\0')
1035			break;
1036		end = start;
1037		while (*end != ' ' && *end != '\t' && *end != '\0')
1038			end++;
1039		last = *end == '\0';
1040		*end = '\0';
1041		tmp = methods;
1042		methods = os_realloc_array(methods, num_methods + 1,
1043					   sizeof(*methods));
1044		if (methods == NULL) {
1045			os_free(tmp);
1046			os_free(buf);
1047			return -1;
1048		}
1049		methods[num_methods].method = eap_peer_get_type(
1050			start, &methods[num_methods].vendor);
1051		if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1052		    methods[num_methods].method == EAP_TYPE_NONE) {
1053			wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
1054				   "'%s'", line, start);
1055			wpa_printf(MSG_ERROR, "You may need to add support for"
1056				   " this EAP method during wpa_supplicant\n"
1057				   "build time configuration.\n"
1058				   "See README for more information.");
1059			errors++;
1060		} else if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1061			   methods[num_methods].method == EAP_TYPE_LEAP)
1062			ssid->leap++;
1063		else
1064			ssid->non_leap++;
1065		num_methods++;
1066		if (last)
1067			break;
1068		start = end + 1;
1069	}
1070	os_free(buf);
1071
1072	tmp = methods;
1073	methods = os_realloc_array(methods, num_methods + 1, sizeof(*methods));
1074	if (methods == NULL) {
1075		os_free(tmp);
1076		return -1;
1077	}
1078	methods[num_methods].vendor = EAP_VENDOR_IETF;
1079	methods[num_methods].method = EAP_TYPE_NONE;
1080	num_methods++;
1081
1082	wpa_hexdump(MSG_MSGDUMP, "eap methods",
1083		    (u8 *) methods, num_methods * sizeof(*methods));
1084	os_free(ssid->eap.eap_methods);
1085	ssid->eap.eap_methods = methods;
1086	return errors ? -1 : 0;
1087}
1088
1089
1090static char * wpa_config_write_eap(const struct parse_data *data,
1091				   struct wpa_ssid *ssid)
1092{
1093	int i, ret;
1094	char *buf, *pos, *end;
1095	const struct eap_method_type *eap_methods = ssid->eap.eap_methods;
1096	const char *name;
1097
1098	if (eap_methods == NULL)
1099		return NULL;
1100
1101	pos = buf = os_zalloc(100);
1102	if (buf == NULL)
1103		return NULL;
1104	end = buf + 100;
1105
1106	for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF ||
1107		     eap_methods[i].method != EAP_TYPE_NONE; i++) {
1108		name = eap_get_name(eap_methods[i].vendor,
1109				    eap_methods[i].method);
1110		if (name) {
1111			ret = os_snprintf(pos, end - pos, "%s%s",
1112					  pos == buf ? "" : " ", name);
1113			if (ret < 0 || ret >= end - pos)
1114				break;
1115			pos += ret;
1116		}
1117	}
1118
1119	end[-1] = '\0';
1120
1121	return buf;
1122}
1123
1124
1125static int wpa_config_parse_password(const struct parse_data *data,
1126				     struct wpa_ssid *ssid, int line,
1127				     const char *value)
1128{
1129	u8 *hash;
1130
1131	if (os_strcmp(value, "NULL") == 0) {
1132		wpa_printf(MSG_DEBUG, "Unset configuration string 'password'");
1133		bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1134		ssid->eap.password = NULL;
1135		ssid->eap.password_len = 0;
1136		return 0;
1137	}
1138
1139#ifdef CONFIG_EXT_PASSWORD
1140	if (os_strncmp(value, "ext:", 4) == 0) {
1141		char *name = os_strdup(value + 4);
1142		if (name == NULL)
1143			return -1;
1144		bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1145		ssid->eap.password = (u8 *) name;
1146		ssid->eap.password_len = os_strlen(name);
1147		ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1148		ssid->eap.flags |= EAP_CONFIG_FLAGS_EXT_PASSWORD;
1149		return 0;
1150	}
1151#endif /* CONFIG_EXT_PASSWORD */
1152
1153	if (os_strncmp(value, "hash:", 5) != 0) {
1154		char *tmp;
1155		size_t res_len;
1156
1157		tmp = wpa_config_parse_string(value, &res_len);
1158		if (tmp == NULL) {
1159			wpa_printf(MSG_ERROR, "Line %d: failed to parse "
1160				   "password.", line);
1161			return -1;
1162		}
1163		wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
1164				      (u8 *) tmp, res_len);
1165
1166		bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1167		ssid->eap.password = (u8 *) tmp;
1168		ssid->eap.password_len = res_len;
1169		ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1170		ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1171
1172		return 0;
1173	}
1174
1175
1176	/* NtPasswordHash: hash:<32 hex digits> */
1177	if (os_strlen(value + 5) != 2 * 16) {
1178		wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length "
1179			   "(expected 32 hex digits)", line);
1180		return -1;
1181	}
1182
1183	hash = os_malloc(16);
1184	if (hash == NULL)
1185		return -1;
1186
1187	if (hexstr2bin(value + 5, hash, 16)) {
1188		os_free(hash);
1189		wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line);
1190		return -1;
1191	}
1192
1193	wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16);
1194
1195	bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1196	ssid->eap.password = hash;
1197	ssid->eap.password_len = 16;
1198	ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1199	ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1200
1201	return 0;
1202}
1203
1204
1205static char * wpa_config_write_password(const struct parse_data *data,
1206					struct wpa_ssid *ssid)
1207{
1208	char *buf;
1209
1210	if (ssid->eap.password == NULL)
1211		return NULL;
1212
1213#ifdef CONFIG_EXT_PASSWORD
1214	if (ssid->eap.flags & EAP_CONFIG_FLAGS_EXT_PASSWORD) {
1215		buf = os_zalloc(4 + ssid->eap.password_len + 1);
1216		if (buf == NULL)
1217			return NULL;
1218		os_memcpy(buf, "ext:", 4);
1219		os_memcpy(buf + 4, ssid->eap.password, ssid->eap.password_len);
1220		return buf;
1221	}
1222#endif /* CONFIG_EXT_PASSWORD */
1223
1224	if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1225		return wpa_config_write_string(
1226			ssid->eap.password, ssid->eap.password_len);
1227	}
1228
1229	buf = os_malloc(5 + 32 + 1);
1230	if (buf == NULL)
1231		return NULL;
1232
1233	os_memcpy(buf, "hash:", 5);
1234	wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16);
1235
1236	return buf;
1237}
1238#endif /* IEEE8021X_EAPOL */
1239
1240
1241static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
1242				    const char *value, int idx)
1243{
1244	char *buf, title[20];
1245	int res;
1246
1247	buf = wpa_config_parse_string(value, len);
1248	if (buf == NULL) {
1249		wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
1250			   line, idx, value);
1251		return -1;
1252	}
1253	if (*len > MAX_WEP_KEY_LEN) {
1254		wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
1255			   line, idx, value);
1256		os_free(buf);
1257		return -1;
1258	}
1259	if (*len && *len != 5 && *len != 13 && *len != 16) {
1260		wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key length %u - "
1261			   "this network block will be ignored",
1262			   line, (unsigned int) *len);
1263	}
1264	os_memcpy(key, buf, *len);
1265	str_clear_free(buf);
1266	res = os_snprintf(title, sizeof(title), "wep_key%d", idx);
1267	if (res >= 0 && (size_t) res < sizeof(title))
1268		wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
1269	return 0;
1270}
1271
1272
1273static int wpa_config_parse_wep_key0(const struct parse_data *data,
1274				     struct wpa_ssid *ssid, int line,
1275				     const char *value)
1276{
1277	return wpa_config_parse_wep_key(ssid->wep_key[0],
1278					&ssid->wep_key_len[0], line,
1279					value, 0);
1280}
1281
1282
1283static int wpa_config_parse_wep_key1(const struct parse_data *data,
1284				     struct wpa_ssid *ssid, int line,
1285				     const char *value)
1286{
1287	return wpa_config_parse_wep_key(ssid->wep_key[1],
1288					&ssid->wep_key_len[1], line,
1289					value, 1);
1290}
1291
1292
1293static int wpa_config_parse_wep_key2(const struct parse_data *data,
1294				     struct wpa_ssid *ssid, int line,
1295				     const char *value)
1296{
1297	return wpa_config_parse_wep_key(ssid->wep_key[2],
1298					&ssid->wep_key_len[2], line,
1299					value, 2);
1300}
1301
1302
1303static int wpa_config_parse_wep_key3(const struct parse_data *data,
1304				     struct wpa_ssid *ssid, int line,
1305				     const char *value)
1306{
1307	return wpa_config_parse_wep_key(ssid->wep_key[3],
1308					&ssid->wep_key_len[3], line,
1309					value, 3);
1310}
1311
1312
1313#ifndef NO_CONFIG_WRITE
1314static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx)
1315{
1316	if (ssid->wep_key_len[idx] == 0)
1317		return NULL;
1318	return wpa_config_write_string(ssid->wep_key[idx],
1319				       ssid->wep_key_len[idx]);
1320}
1321
1322
1323static char * wpa_config_write_wep_key0(const struct parse_data *data,
1324					struct wpa_ssid *ssid)
1325{
1326	return wpa_config_write_wep_key(ssid, 0);
1327}
1328
1329
1330static char * wpa_config_write_wep_key1(const struct parse_data *data,
1331					struct wpa_ssid *ssid)
1332{
1333	return wpa_config_write_wep_key(ssid, 1);
1334}
1335
1336
1337static char * wpa_config_write_wep_key2(const struct parse_data *data,
1338					struct wpa_ssid *ssid)
1339{
1340	return wpa_config_write_wep_key(ssid, 2);
1341}
1342
1343
1344static char * wpa_config_write_wep_key3(const struct parse_data *data,
1345					struct wpa_ssid *ssid)
1346{
1347	return wpa_config_write_wep_key(ssid, 3);
1348}
1349#endif /* NO_CONFIG_WRITE */
1350
1351
1352#ifdef CONFIG_P2P
1353
1354static int wpa_config_parse_go_p2p_dev_addr(const struct parse_data *data,
1355					    struct wpa_ssid *ssid, int line,
1356					    const char *value)
1357{
1358	if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
1359	    os_strcmp(value, "any") == 0) {
1360		os_memset(ssid->go_p2p_dev_addr, 0, ETH_ALEN);
1361		wpa_printf(MSG_MSGDUMP, "GO P2P Device Address any");
1362		return 0;
1363	}
1364	if (hwaddr_aton(value, ssid->go_p2p_dev_addr)) {
1365		wpa_printf(MSG_ERROR, "Line %d: Invalid GO P2P Device Address '%s'.",
1366			   line, value);
1367		return -1;
1368	}
1369	ssid->bssid_set = 1;
1370	wpa_printf(MSG_MSGDUMP, "GO P2P Device Address " MACSTR,
1371		   MAC2STR(ssid->go_p2p_dev_addr));
1372	return 0;
1373}
1374
1375
1376#ifndef NO_CONFIG_WRITE
1377static char * wpa_config_write_go_p2p_dev_addr(const struct parse_data *data,
1378					       struct wpa_ssid *ssid)
1379{
1380	char *value;
1381	int res;
1382
1383	if (is_zero_ether_addr(ssid->go_p2p_dev_addr))
1384		return NULL;
1385
1386	value = os_malloc(20);
1387	if (value == NULL)
1388		return NULL;
1389	res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->go_p2p_dev_addr));
1390	if (res < 0 || res >= 20) {
1391		os_free(value);
1392		return NULL;
1393	}
1394	value[20 - 1] = '\0';
1395	return value;
1396}
1397#endif /* NO_CONFIG_WRITE */
1398
1399
1400static int wpa_config_parse_p2p_client_list(const struct parse_data *data,
1401					    struct wpa_ssid *ssid, int line,
1402					    const char *value)
1403{
1404	const char *pos;
1405	u8 *buf, *n, addr[ETH_ALEN];
1406	size_t count;
1407
1408	buf = NULL;
1409	count = 0;
1410
1411	pos = value;
1412	while (pos && *pos) {
1413		while (*pos == ' ')
1414			pos++;
1415
1416		if (hwaddr_aton(pos, addr)) {
1417			if (count == 0) {
1418				wpa_printf(MSG_ERROR, "Line %d: Invalid "
1419					   "p2p_client_list address '%s'.",
1420					   line, value);
1421				os_free(buf);
1422				return -1;
1423			}
1424			/* continue anyway since this could have been from a
1425			 * truncated configuration file line */
1426			wpa_printf(MSG_INFO, "Line %d: Ignore likely "
1427				   "truncated p2p_client_list address '%s'",
1428				   line, pos);
1429		} else {
1430			n = os_realloc_array(buf, count + 1, ETH_ALEN);
1431			if (n == NULL) {
1432				os_free(buf);
1433				return -1;
1434			}
1435			buf = n;
1436			os_memmove(buf + ETH_ALEN, buf, count * ETH_ALEN);
1437			os_memcpy(buf, addr, ETH_ALEN);
1438			count++;
1439			wpa_hexdump(MSG_MSGDUMP, "p2p_client_list",
1440				    addr, ETH_ALEN);
1441		}
1442
1443		pos = os_strchr(pos, ' ');
1444	}
1445
1446	os_free(ssid->p2p_client_list);
1447	ssid->p2p_client_list = buf;
1448	ssid->num_p2p_clients = count;
1449
1450	return 0;
1451}
1452
1453
1454#ifndef NO_CONFIG_WRITE
1455static char * wpa_config_write_p2p_client_list(const struct parse_data *data,
1456					       struct wpa_ssid *ssid)
1457{
1458	char *value, *end, *pos;
1459	int res;
1460	size_t i;
1461
1462	if (ssid->p2p_client_list == NULL || ssid->num_p2p_clients == 0)
1463		return NULL;
1464
1465	value = os_malloc(20 * ssid->num_p2p_clients);
1466	if (value == NULL)
1467		return NULL;
1468	pos = value;
1469	end = value + 20 * ssid->num_p2p_clients;
1470
1471	for (i = ssid->num_p2p_clients; i > 0; i--) {
1472		res = os_snprintf(pos, end - pos, MACSTR " ",
1473				  MAC2STR(ssid->p2p_client_list +
1474					  (i - 1) * ETH_ALEN));
1475		if (res < 0 || res >= end - pos) {
1476			os_free(value);
1477			return NULL;
1478		}
1479		pos += res;
1480	}
1481
1482	if (pos > value)
1483		pos[-1] = '\0';
1484
1485	return value;
1486}
1487#endif /* NO_CONFIG_WRITE */
1488
1489
1490static int wpa_config_parse_psk_list(const struct parse_data *data,
1491				     struct wpa_ssid *ssid, int line,
1492				     const char *value)
1493{
1494	struct psk_list_entry *p;
1495	const char *pos;
1496
1497	p = os_zalloc(sizeof(*p));
1498	if (p == NULL)
1499		return -1;
1500
1501	pos = value;
1502	if (os_strncmp(pos, "P2P-", 4) == 0) {
1503		p->p2p = 1;
1504		pos += 4;
1505	}
1506
1507	if (hwaddr_aton(pos, p->addr)) {
1508		wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list address '%s'",
1509			   line, pos);
1510		os_free(p);
1511		return -1;
1512	}
1513	pos += 17;
1514	if (*pos != '-') {
1515		wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list '%s'",
1516			   line, pos);
1517		os_free(p);
1518		return -1;
1519	}
1520	pos++;
1521
1522	if (hexstr2bin(pos, p->psk, PMK_LEN) || pos[PMK_LEN * 2] != '\0') {
1523		wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list PSK '%s'",
1524			   line, pos);
1525		os_free(p);
1526		return -1;
1527	}
1528
1529	dl_list_add(&ssid->psk_list, &p->list);
1530
1531	return 0;
1532}
1533
1534
1535#ifndef NO_CONFIG_WRITE
1536static char * wpa_config_write_psk_list(const struct parse_data *data,
1537					struct wpa_ssid *ssid)
1538{
1539	return NULL;
1540}
1541#endif /* NO_CONFIG_WRITE */
1542
1543#endif /* CONFIG_P2P */
1544
1545/* Helper macros for network block parser */
1546
1547#ifdef OFFSET
1548#undef OFFSET
1549#endif /* OFFSET */
1550/* OFFSET: Get offset of a variable within the wpa_ssid structure */
1551#define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
1552
1553/* STR: Define a string variable for an ASCII string; f = field name */
1554#ifdef NO_CONFIG_WRITE
1555#define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
1556#define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
1557#else /* NO_CONFIG_WRITE */
1558#define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
1559#define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
1560#endif /* NO_CONFIG_WRITE */
1561#define STR(f) _STR(f), NULL, NULL, NULL, 0
1562#define STRe(f) _STRe(f), NULL, NULL, NULL, 0
1563#define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
1564#define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
1565
1566/* STR_LEN: Define a string variable with a separate variable for storing the
1567 * data length. Unlike STR(), this can be used to store arbitrary binary data
1568 * (i.e., even nul termination character). */
1569#define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
1570#define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
1571#define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
1572#define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
1573#define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
1574
1575/* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
1576 * explicitly specified. */
1577#define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
1578#define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
1579#define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
1580
1581#ifdef NO_CONFIG_WRITE
1582#define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
1583#define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
1584#else /* NO_CONFIG_WRITE */
1585#define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1586	OFFSET(f), (void *) 0
1587#define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1588	OFFSET(eap.f), (void *) 0
1589#endif /* NO_CONFIG_WRITE */
1590
1591/* INT: Define an integer variable */
1592#define INT(f) _INT(f), NULL, NULL, 0
1593#define INTe(f) _INTe(f), NULL, NULL, 0
1594
1595/* INT_RANGE: Define an integer variable with allowed value range */
1596#define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
1597
1598/* FUNC: Define a configuration variable that uses a custom function for
1599 * parsing and writing the value. */
1600#ifdef NO_CONFIG_WRITE
1601#define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
1602#else /* NO_CONFIG_WRITE */
1603#define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
1604	NULL, NULL, NULL, NULL
1605#endif /* NO_CONFIG_WRITE */
1606#define FUNC(f) _FUNC(f), 0
1607#define FUNC_KEY(f) _FUNC(f), 1
1608
1609/*
1610 * Table of network configuration variables. This table is used to parse each
1611 * network configuration variable, e.g., each line in wpa_supplicant.conf file
1612 * that is inside a network block.
1613 *
1614 * This table is generated using the helper macros defined above and with
1615 * generous help from the C pre-processor. The field name is stored as a string
1616 * into .name and for STR and INT types, the offset of the target buffer within
1617 * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
1618 * offset to the field containing the length of the configuration variable.
1619 * .param3 and .param4 can be used to mark the allowed range (length for STR
1620 * and value for INT).
1621 *
1622 * For each configuration line in wpa_supplicant.conf, the parser goes through
1623 * this table and select the entry that matches with the field name. The parser
1624 * function (.parser) is then called to parse the actual value of the field.
1625 *
1626 * This kind of mechanism makes it easy to add new configuration parameters,
1627 * since only one line needs to be added into this table and into the
1628 * struct wpa_ssid definition if the new variable is either a string or
1629 * integer. More complex types will need to use their own parser and writer
1630 * functions.
1631 */
1632static const struct parse_data ssid_fields[] = {
1633	{ STR_RANGE(ssid, 0, MAX_SSID_LEN) },
1634	{ INT_RANGE(scan_ssid, 0, 1) },
1635	{ FUNC(bssid) },
1636	{ FUNC_KEY(psk) },
1637	{ FUNC(proto) },
1638	{ FUNC(key_mgmt) },
1639	{ INT(bg_scan_period) },
1640	{ FUNC(pairwise) },
1641	{ FUNC(group) },
1642	{ FUNC(auth_alg) },
1643	{ FUNC(scan_freq) },
1644	{ FUNC(freq_list) },
1645#ifdef IEEE8021X_EAPOL
1646	{ FUNC(eap) },
1647	{ STR_LENe(identity) },
1648	{ STR_LENe(anonymous_identity) },
1649	{ FUNC_KEY(password) },
1650	{ STRe(ca_cert) },
1651	{ STRe(ca_path) },
1652	{ STRe(client_cert) },
1653	{ STRe(private_key) },
1654	{ STR_KEYe(private_key_passwd) },
1655	{ STRe(dh_file) },
1656	{ STRe(subject_match) },
1657	{ STRe(altsubject_match) },
1658	{ STRe(domain_suffix_match) },
1659	{ STRe(ca_cert2) },
1660	{ STRe(ca_path2) },
1661	{ STRe(client_cert2) },
1662	{ STRe(private_key2) },
1663	{ STR_KEYe(private_key2_passwd) },
1664	{ STRe(dh_file2) },
1665	{ STRe(subject_match2) },
1666	{ STRe(altsubject_match2) },
1667	{ STRe(domain_suffix_match2) },
1668	{ STRe(phase1) },
1669	{ STRe(phase2) },
1670	{ STRe(pcsc) },
1671	{ STR_KEYe(pin) },
1672	{ STRe(engine_id) },
1673	{ STRe(key_id) },
1674	{ STRe(cert_id) },
1675	{ STRe(ca_cert_id) },
1676	{ STR_KEYe(pin2) },
1677	{ STRe(engine2_id) },
1678	{ STRe(key2_id) },
1679	{ STRe(cert2_id) },
1680	{ STRe(ca_cert2_id) },
1681	{ INTe(engine) },
1682	{ INTe(engine2) },
1683	{ INT(eapol_flags) },
1684	{ INTe(sim_num) },
1685#endif /* IEEE8021X_EAPOL */
1686	{ FUNC_KEY(wep_key0) },
1687	{ FUNC_KEY(wep_key1) },
1688	{ FUNC_KEY(wep_key2) },
1689	{ FUNC_KEY(wep_key3) },
1690	{ INT(wep_tx_keyidx) },
1691	{ INT(priority) },
1692#ifdef IEEE8021X_EAPOL
1693	{ INT(eap_workaround) },
1694	{ STRe(pac_file) },
1695	{ INTe(fragment_size) },
1696	{ INTe(ocsp) },
1697#endif /* IEEE8021X_EAPOL */
1698	{ INT_RANGE(mode, 0, 4) },
1699	{ INT_RANGE(proactive_key_caching, 0, 1) },
1700	{ INT_RANGE(disabled, 0, 2) },
1701	{ STR(id_str) },
1702#ifdef CONFIG_IEEE80211W
1703	{ INT_RANGE(ieee80211w, 0, 2) },
1704#endif /* CONFIG_IEEE80211W */
1705	{ INT_RANGE(peerkey, 0, 1) },
1706	{ INT_RANGE(mixed_cell, 0, 1) },
1707	{ INT_RANGE(frequency, 0, 65000) },
1708	{ INT(wpa_ptk_rekey) },
1709	{ STR(bgscan) },
1710	{ INT_RANGE(ignore_broadcast_ssid, 0, 2) },
1711#ifdef CONFIG_P2P
1712	{ FUNC(go_p2p_dev_addr) },
1713	{ FUNC(p2p_client_list) },
1714	{ FUNC(psk_list) },
1715#endif /* CONFIG_P2P */
1716#ifdef CONFIG_HT_OVERRIDES
1717	{ INT_RANGE(disable_ht, 0, 1) },
1718	{ INT_RANGE(disable_ht40, -1, 1) },
1719	{ INT_RANGE(disable_sgi, 0, 1) },
1720	{ INT_RANGE(disable_ldpc, 0, 1) },
1721	{ INT_RANGE(ht40_intolerant, 0, 1) },
1722	{ INT_RANGE(disable_max_amsdu, -1, 1) },
1723	{ INT_RANGE(ampdu_factor, -1, 3) },
1724	{ INT_RANGE(ampdu_density, -1, 7) },
1725	{ STR(ht_mcs) },
1726#endif /* CONFIG_HT_OVERRIDES */
1727#ifdef CONFIG_VHT_OVERRIDES
1728	{ INT_RANGE(disable_vht, 0, 1) },
1729	{ INT(vht_capa) },
1730	{ INT(vht_capa_mask) },
1731	{ INT_RANGE(vht_rx_mcs_nss_1, -1, 3) },
1732	{ INT_RANGE(vht_rx_mcs_nss_2, -1, 3) },
1733	{ INT_RANGE(vht_rx_mcs_nss_3, -1, 3) },
1734	{ INT_RANGE(vht_rx_mcs_nss_4, -1, 3) },
1735	{ INT_RANGE(vht_rx_mcs_nss_5, -1, 3) },
1736	{ INT_RANGE(vht_rx_mcs_nss_6, -1, 3) },
1737	{ INT_RANGE(vht_rx_mcs_nss_7, -1, 3) },
1738	{ INT_RANGE(vht_rx_mcs_nss_8, -1, 3) },
1739	{ INT_RANGE(vht_tx_mcs_nss_1, -1, 3) },
1740	{ INT_RANGE(vht_tx_mcs_nss_2, -1, 3) },
1741	{ INT_RANGE(vht_tx_mcs_nss_3, -1, 3) },
1742	{ INT_RANGE(vht_tx_mcs_nss_4, -1, 3) },
1743	{ INT_RANGE(vht_tx_mcs_nss_5, -1, 3) },
1744	{ INT_RANGE(vht_tx_mcs_nss_6, -1, 3) },
1745	{ INT_RANGE(vht_tx_mcs_nss_7, -1, 3) },
1746	{ INT_RANGE(vht_tx_mcs_nss_8, -1, 3) },
1747#endif /* CONFIG_VHT_OVERRIDES */
1748	{ INT(ap_max_inactivity) },
1749	{ INT(dtim_period) },
1750	{ INT(beacon_int) },
1751#ifdef CONFIG_MACSEC
1752	{ INT_RANGE(macsec_policy, 0, 1) },
1753#endif /* CONFIG_MACSEC */
1754#ifdef CONFIG_HS20
1755	{ INT(update_identifier) },
1756#endif /* CONFIG_HS20 */
1757	{ INT_RANGE(mac_addr, 0, 2) },
1758};
1759
1760#undef OFFSET
1761#undef _STR
1762#undef STR
1763#undef STR_KEY
1764#undef _STR_LEN
1765#undef STR_LEN
1766#undef STR_LEN_KEY
1767#undef _STR_RANGE
1768#undef STR_RANGE
1769#undef STR_RANGE_KEY
1770#undef _INT
1771#undef INT
1772#undef INT_RANGE
1773#undef _FUNC
1774#undef FUNC
1775#undef FUNC_KEY
1776#define NUM_SSID_FIELDS ARRAY_SIZE(ssid_fields)
1777
1778
1779/**
1780 * wpa_config_add_prio_network - Add a network to priority lists
1781 * @config: Configuration data from wpa_config_read()
1782 * @ssid: Pointer to the network configuration to be added to the list
1783 * Returns: 0 on success, -1 on failure
1784 *
1785 * This function is used to add a network block to the priority list of
1786 * networks. This must be called for each network when reading in the full
1787 * configuration. In addition, this can be used indirectly when updating
1788 * priorities by calling wpa_config_update_prio_list().
1789 */
1790int wpa_config_add_prio_network(struct wpa_config *config,
1791				struct wpa_ssid *ssid)
1792{
1793	int prio;
1794	struct wpa_ssid *prev, **nlist;
1795
1796	/*
1797	 * Add to an existing priority list if one is available for the
1798	 * configured priority level for this network.
1799	 */
1800	for (prio = 0; prio < config->num_prio; prio++) {
1801		prev = config->pssid[prio];
1802		if (prev->priority == ssid->priority) {
1803			while (prev->pnext)
1804				prev = prev->pnext;
1805			prev->pnext = ssid;
1806			return 0;
1807		}
1808	}
1809
1810	/* First network for this priority - add a new priority list */
1811	nlist = os_realloc_array(config->pssid, config->num_prio + 1,
1812				 sizeof(struct wpa_ssid *));
1813	if (nlist == NULL)
1814		return -1;
1815
1816	for (prio = 0; prio < config->num_prio; prio++) {
1817		if (nlist[prio]->priority < ssid->priority) {
1818			os_memmove(&nlist[prio + 1], &nlist[prio],
1819				   (config->num_prio - prio) *
1820				   sizeof(struct wpa_ssid *));
1821			break;
1822		}
1823	}
1824
1825	nlist[prio] = ssid;
1826	config->num_prio++;
1827	config->pssid = nlist;
1828
1829	return 0;
1830}
1831
1832
1833/**
1834 * wpa_config_update_prio_list - Update network priority list
1835 * @config: Configuration data from wpa_config_read()
1836 * Returns: 0 on success, -1 on failure
1837 *
1838 * This function is called to update the priority list of networks in the
1839 * configuration when a network is being added or removed. This is also called
1840 * if a priority for a network is changed.
1841 */
1842int wpa_config_update_prio_list(struct wpa_config *config)
1843{
1844	struct wpa_ssid *ssid;
1845	int ret = 0;
1846
1847	os_free(config->pssid);
1848	config->pssid = NULL;
1849	config->num_prio = 0;
1850
1851	ssid = config->ssid;
1852	while (ssid) {
1853		ssid->pnext = NULL;
1854		if (wpa_config_add_prio_network(config, ssid) < 0)
1855			ret = -1;
1856		ssid = ssid->next;
1857	}
1858
1859	return ret;
1860}
1861
1862
1863#ifdef IEEE8021X_EAPOL
1864static void eap_peer_config_free(struct eap_peer_config *eap)
1865{
1866	os_free(eap->eap_methods);
1867	bin_clear_free(eap->identity, eap->identity_len);
1868	os_free(eap->anonymous_identity);
1869	bin_clear_free(eap->password, eap->password_len);
1870	os_free(eap->ca_cert);
1871	os_free(eap->ca_path);
1872	os_free(eap->client_cert);
1873	os_free(eap->private_key);
1874	str_clear_free(eap->private_key_passwd);
1875	os_free(eap->dh_file);
1876	os_free(eap->subject_match);
1877	os_free(eap->altsubject_match);
1878	os_free(eap->domain_suffix_match);
1879	os_free(eap->ca_cert2);
1880	os_free(eap->ca_path2);
1881	os_free(eap->client_cert2);
1882	os_free(eap->private_key2);
1883	str_clear_free(eap->private_key2_passwd);
1884	os_free(eap->dh_file2);
1885	os_free(eap->subject_match2);
1886	os_free(eap->altsubject_match2);
1887	os_free(eap->domain_suffix_match2);
1888	os_free(eap->phase1);
1889	os_free(eap->phase2);
1890	os_free(eap->pcsc);
1891	str_clear_free(eap->pin);
1892	os_free(eap->engine_id);
1893	os_free(eap->key_id);
1894	os_free(eap->cert_id);
1895	os_free(eap->ca_cert_id);
1896	os_free(eap->key2_id);
1897	os_free(eap->cert2_id);
1898	os_free(eap->ca_cert2_id);
1899	str_clear_free(eap->pin2);
1900	os_free(eap->engine2_id);
1901	os_free(eap->otp);
1902	os_free(eap->pending_req_otp);
1903	os_free(eap->pac_file);
1904	bin_clear_free(eap->new_password, eap->new_password_len);
1905	str_clear_free(eap->external_sim_resp);
1906}
1907#endif /* IEEE8021X_EAPOL */
1908
1909
1910/**
1911 * wpa_config_free_ssid - Free network/ssid configuration data
1912 * @ssid: Configuration data for the network
1913 *
1914 * This function frees all resources allocated for the network configuration
1915 * data.
1916 */
1917void wpa_config_free_ssid(struct wpa_ssid *ssid)
1918{
1919	struct psk_list_entry *psk;
1920
1921	os_free(ssid->ssid);
1922	os_memset(ssid->psk, 0, sizeof(ssid->psk));
1923	str_clear_free(ssid->passphrase);
1924	os_free(ssid->ext_psk);
1925#ifdef IEEE8021X_EAPOL
1926	eap_peer_config_free(&ssid->eap);
1927#endif /* IEEE8021X_EAPOL */
1928	os_free(ssid->id_str);
1929	os_free(ssid->scan_freq);
1930	os_free(ssid->freq_list);
1931	os_free(ssid->bgscan);
1932	os_free(ssid->p2p_client_list);
1933#ifdef CONFIG_HT_OVERRIDES
1934	os_free(ssid->ht_mcs);
1935#endif /* CONFIG_HT_OVERRIDES */
1936	while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry,
1937				    list))) {
1938		dl_list_del(&psk->list);
1939		os_free(psk);
1940	}
1941	os_free(ssid);
1942}
1943
1944
1945void wpa_config_free_cred(struct wpa_cred *cred)
1946{
1947	size_t i;
1948
1949	os_free(cred->realm);
1950	str_clear_free(cred->username);
1951	str_clear_free(cred->password);
1952	os_free(cred->ca_cert);
1953	os_free(cred->client_cert);
1954	os_free(cred->private_key);
1955	str_clear_free(cred->private_key_passwd);
1956	os_free(cred->imsi);
1957	str_clear_free(cred->milenage);
1958	for (i = 0; i < cred->num_domain; i++)
1959		os_free(cred->domain[i]);
1960	os_free(cred->domain);
1961	os_free(cred->domain_suffix_match);
1962	os_free(cred->eap_method);
1963	os_free(cred->phase1);
1964	os_free(cred->phase2);
1965	os_free(cred->excluded_ssid);
1966	os_free(cred->roaming_partner);
1967	os_free(cred->provisioning_sp);
1968	for (i = 0; i < cred->num_req_conn_capab; i++)
1969		os_free(cred->req_conn_capab_port[i]);
1970	os_free(cred->req_conn_capab_port);
1971	os_free(cred->req_conn_capab_proto);
1972	os_free(cred);
1973}
1974
1975
1976void wpa_config_flush_blobs(struct wpa_config *config)
1977{
1978#ifndef CONFIG_NO_CONFIG_BLOBS
1979	struct wpa_config_blob *blob, *prev;
1980
1981	blob = config->blobs;
1982	config->blobs = NULL;
1983	while (blob) {
1984		prev = blob;
1985		blob = blob->next;
1986		wpa_config_free_blob(prev);
1987	}
1988#endif /* CONFIG_NO_CONFIG_BLOBS */
1989}
1990
1991
1992/**
1993 * wpa_config_free - Free configuration data
1994 * @config: Configuration data from wpa_config_read()
1995 *
1996 * This function frees all resources allocated for the configuration data by
1997 * wpa_config_read().
1998 */
1999void wpa_config_free(struct wpa_config *config)
2000{
2001	struct wpa_ssid *ssid, *prev = NULL;
2002	struct wpa_cred *cred, *cprev;
2003
2004	ssid = config->ssid;
2005	while (ssid) {
2006		prev = ssid;
2007		ssid = ssid->next;
2008		wpa_config_free_ssid(prev);
2009	}
2010
2011	cred = config->cred;
2012	while (cred) {
2013		cprev = cred;
2014		cred = cred->next;
2015		wpa_config_free_cred(cprev);
2016	}
2017
2018	wpa_config_flush_blobs(config);
2019
2020	wpabuf_free(config->wps_vendor_ext_m1);
2021	os_free(config->ctrl_interface);
2022	os_free(config->ctrl_interface_group);
2023	os_free(config->opensc_engine_path);
2024	os_free(config->pkcs11_engine_path);
2025	os_free(config->pkcs11_module_path);
2026	os_free(config->pcsc_reader);
2027	str_clear_free(config->pcsc_pin);
2028	os_free(config->driver_param);
2029	os_free(config->device_name);
2030	os_free(config->manufacturer);
2031	os_free(config->model_name);
2032	os_free(config->model_number);
2033	os_free(config->serial_number);
2034	os_free(config->config_methods);
2035	os_free(config->p2p_ssid_postfix);
2036	os_free(config->pssid);
2037	os_free(config->p2p_pref_chan);
2038	os_free(config->p2p_no_go_freq.range);
2039	os_free(config->autoscan);
2040	os_free(config->freq_list);
2041	wpabuf_free(config->wps_nfc_dh_pubkey);
2042	wpabuf_free(config->wps_nfc_dh_privkey);
2043	wpabuf_free(config->wps_nfc_dev_pw);
2044	os_free(config->ext_password_backend);
2045	os_free(config->sae_groups);
2046	wpabuf_free(config->ap_vendor_elements);
2047	os_free(config->osu_dir);
2048	os_free(config->wowlan_triggers);
2049	os_free(config);
2050}
2051
2052
2053/**
2054 * wpa_config_foreach_network - Iterate over each configured network
2055 * @config: Configuration data from wpa_config_read()
2056 * @func: Callback function to process each network
2057 * @arg: Opaque argument to pass to callback function
2058 *
2059 * Iterate over the set of configured networks calling the specified
2060 * function for each item. We guard against callbacks removing the
2061 * supplied network.
2062 */
2063void wpa_config_foreach_network(struct wpa_config *config,
2064				void (*func)(void *, struct wpa_ssid *),
2065				void *arg)
2066{
2067	struct wpa_ssid *ssid, *next;
2068
2069	ssid = config->ssid;
2070	while (ssid) {
2071		next = ssid->next;
2072		func(arg, ssid);
2073		ssid = next;
2074	}
2075}
2076
2077
2078/**
2079 * wpa_config_get_network - Get configured network based on id
2080 * @config: Configuration data from wpa_config_read()
2081 * @id: Unique network id to search for
2082 * Returns: Network configuration or %NULL if not found
2083 */
2084struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
2085{
2086	struct wpa_ssid *ssid;
2087
2088	ssid = config->ssid;
2089	while (ssid) {
2090		if (id == ssid->id)
2091			break;
2092		ssid = ssid->next;
2093	}
2094
2095	return ssid;
2096}
2097
2098
2099/**
2100 * wpa_config_add_network - Add a new network with empty configuration
2101 * @config: Configuration data from wpa_config_read()
2102 * Returns: The new network configuration or %NULL if operation failed
2103 */
2104struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
2105{
2106	int id;
2107	struct wpa_ssid *ssid, *last = NULL;
2108
2109	id = -1;
2110	ssid = config->ssid;
2111	while (ssid) {
2112		if (ssid->id > id)
2113			id = ssid->id;
2114		last = ssid;
2115		ssid = ssid->next;
2116	}
2117	id++;
2118
2119	ssid = os_zalloc(sizeof(*ssid));
2120	if (ssid == NULL)
2121		return NULL;
2122	ssid->id = id;
2123	dl_list_init(&ssid->psk_list);
2124	if (last)
2125		last->next = ssid;
2126	else
2127		config->ssid = ssid;
2128
2129	wpa_config_update_prio_list(config);
2130
2131	return ssid;
2132}
2133
2134
2135/**
2136 * wpa_config_remove_network - Remove a configured network based on id
2137 * @config: Configuration data from wpa_config_read()
2138 * @id: Unique network id to search for
2139 * Returns: 0 on success, or -1 if the network was not found
2140 */
2141int wpa_config_remove_network(struct wpa_config *config, int id)
2142{
2143	struct wpa_ssid *ssid, *prev = NULL;
2144
2145	ssid = config->ssid;
2146	while (ssid) {
2147		if (id == ssid->id)
2148			break;
2149		prev = ssid;
2150		ssid = ssid->next;
2151	}
2152
2153	if (ssid == NULL)
2154		return -1;
2155
2156	if (prev)
2157		prev->next = ssid->next;
2158	else
2159		config->ssid = ssid->next;
2160
2161	wpa_config_update_prio_list(config);
2162	wpa_config_free_ssid(ssid);
2163	return 0;
2164}
2165
2166
2167/**
2168 * wpa_config_set_network_defaults - Set network default values
2169 * @ssid: Pointer to network configuration data
2170 */
2171void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2172{
2173	ssid->proto = DEFAULT_PROTO;
2174	ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2175	ssid->group_cipher = DEFAULT_GROUP;
2176	ssid->key_mgmt = DEFAULT_KEY_MGMT;
2177	ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2178#ifdef IEEE8021X_EAPOL
2179	ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2180	ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2181	ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2182	ssid->eap.sim_num = DEFAULT_USER_SELECTED_SIM;
2183#endif /* IEEE8021X_EAPOL */
2184#ifdef CONFIG_HT_OVERRIDES
2185	ssid->disable_ht = DEFAULT_DISABLE_HT;
2186	ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2187	ssid->disable_sgi = DEFAULT_DISABLE_SGI;
2188	ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
2189	ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2190	ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2191	ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2192#endif /* CONFIG_HT_OVERRIDES */
2193#ifdef CONFIG_VHT_OVERRIDES
2194	ssid->vht_rx_mcs_nss_1 = -1;
2195	ssid->vht_rx_mcs_nss_2 = -1;
2196	ssid->vht_rx_mcs_nss_3 = -1;
2197	ssid->vht_rx_mcs_nss_4 = -1;
2198	ssid->vht_rx_mcs_nss_5 = -1;
2199	ssid->vht_rx_mcs_nss_6 = -1;
2200	ssid->vht_rx_mcs_nss_7 = -1;
2201	ssid->vht_rx_mcs_nss_8 = -1;
2202	ssid->vht_tx_mcs_nss_1 = -1;
2203	ssid->vht_tx_mcs_nss_2 = -1;
2204	ssid->vht_tx_mcs_nss_3 = -1;
2205	ssid->vht_tx_mcs_nss_4 = -1;
2206	ssid->vht_tx_mcs_nss_5 = -1;
2207	ssid->vht_tx_mcs_nss_6 = -1;
2208	ssid->vht_tx_mcs_nss_7 = -1;
2209	ssid->vht_tx_mcs_nss_8 = -1;
2210#endif /* CONFIG_VHT_OVERRIDES */
2211	ssid->proactive_key_caching = -1;
2212#ifdef CONFIG_IEEE80211W
2213	ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2214#endif /* CONFIG_IEEE80211W */
2215	ssid->mac_addr = -1;
2216}
2217
2218
2219/**
2220 * wpa_config_set - Set a variable in network configuration
2221 * @ssid: Pointer to network configuration data
2222 * @var: Variable name, e.g., "ssid"
2223 * @value: Variable value
2224 * @line: Line number in configuration file or 0 if not used
2225 * Returns: 0 on success, -1 on failure
2226 *
2227 * This function can be used to set network configuration variables based on
2228 * both the configuration file and management interface input. The value
2229 * parameter must be in the same format as the text-based configuration file is
2230 * using. For example, strings are using double quotation marks.
2231 */
2232int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2233		   int line)
2234{
2235	size_t i;
2236	int ret = 0;
2237
2238	if (ssid == NULL || var == NULL || value == NULL)
2239		return -1;
2240
2241	for (i = 0; i < NUM_SSID_FIELDS; i++) {
2242		const struct parse_data *field = &ssid_fields[i];
2243		if (os_strcmp(var, field->name) != 0)
2244			continue;
2245
2246		if (field->parser(field, ssid, line, value)) {
2247			if (line) {
2248				wpa_printf(MSG_ERROR, "Line %d: failed to "
2249					   "parse %s '%s'.", line, var, value);
2250			}
2251			ret = -1;
2252		}
2253		break;
2254	}
2255	if (i == NUM_SSID_FIELDS) {
2256		if (line) {
2257			wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2258				   "'%s'.", line, var);
2259		}
2260		ret = -1;
2261	}
2262
2263	return ret;
2264}
2265
2266
2267int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2268			  const char *value)
2269{
2270	size_t len;
2271	char *buf;
2272	int ret;
2273
2274	len = os_strlen(value);
2275	buf = os_malloc(len + 3);
2276	if (buf == NULL)
2277		return -1;
2278	buf[0] = '"';
2279	os_memcpy(buf + 1, value, len);
2280	buf[len + 1] = '"';
2281	buf[len + 2] = '\0';
2282	ret = wpa_config_set(ssid, var, buf, 0);
2283	os_free(buf);
2284	return ret;
2285}
2286
2287
2288/**
2289 * wpa_config_get_all - Get all options from network configuration
2290 * @ssid: Pointer to network configuration data
2291 * @get_keys: Determines if keys/passwords will be included in returned list
2292 *	(if they may be exported)
2293 * Returns: %NULL terminated list of all set keys and their values in the form
2294 * of [key1, val1, key2, val2, ... , NULL]
2295 *
2296 * This function can be used to get list of all configured network properties.
2297 * The caller is responsible for freeing the returned list and all its
2298 * elements.
2299 */
2300char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2301{
2302	const struct parse_data *field;
2303	char *key, *value;
2304	size_t i;
2305	char **props;
2306	int fields_num;
2307
2308	get_keys = get_keys && ssid->export_keys;
2309
2310	props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
2311	if (!props)
2312		return NULL;
2313
2314	fields_num = 0;
2315	for (i = 0; i < NUM_SSID_FIELDS; i++) {
2316		field = &ssid_fields[i];
2317		if (field->key_data && !get_keys)
2318			continue;
2319		value = field->writer(field, ssid);
2320		if (value == NULL)
2321			continue;
2322		if (os_strlen(value) == 0) {
2323			os_free(value);
2324			continue;
2325		}
2326
2327		key = os_strdup(field->name);
2328		if (key == NULL) {
2329			os_free(value);
2330			goto err;
2331		}
2332
2333		props[fields_num * 2] = key;
2334		props[fields_num * 2 + 1] = value;
2335
2336		fields_num++;
2337	}
2338
2339	return props;
2340
2341err:
2342	value = *props;
2343	while (value)
2344		os_free(value++);
2345	os_free(props);
2346	return NULL;
2347}
2348
2349
2350#ifndef NO_CONFIG_WRITE
2351/**
2352 * wpa_config_get - Get a variable in network configuration
2353 * @ssid: Pointer to network configuration data
2354 * @var: Variable name, e.g., "ssid"
2355 * Returns: Value of the variable or %NULL on failure
2356 *
2357 * This function can be used to get network configuration variables. The
2358 * returned value is a copy of the configuration variable in text format, i.e,.
2359 * the same format that the text-based configuration file and wpa_config_set()
2360 * are using for the value. The caller is responsible for freeing the returned
2361 * value.
2362 */
2363char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2364{
2365	size_t i;
2366
2367	if (ssid == NULL || var == NULL)
2368		return NULL;
2369
2370	for (i = 0; i < NUM_SSID_FIELDS; i++) {
2371		const struct parse_data *field = &ssid_fields[i];
2372		if (os_strcmp(var, field->name) == 0) {
2373			char *ret = field->writer(field, ssid);
2374			if (os_strchr(ret, '\r') != NULL || os_strchr(ret, '\n') != NULL) {
2375				wpa_printf(MSG_ERROR, "Found newline in value for %s; "
2376					"not returning it", var);
2377				os_free(ret);
2378				ret = NULL;
2379			}
2380			return ret;
2381		}
2382	}
2383
2384	return NULL;
2385}
2386
2387
2388/**
2389 * wpa_config_get_no_key - Get a variable in network configuration (no keys)
2390 * @ssid: Pointer to network configuration data
2391 * @var: Variable name, e.g., "ssid"
2392 * Returns: Value of the variable or %NULL on failure
2393 *
2394 * This function can be used to get network configuration variable like
2395 * wpa_config_get(). The only difference is that this functions does not expose
2396 * key/password material from the configuration. In case a key/password field
2397 * is requested, the returned value is an empty string or %NULL if the variable
2398 * is not set or "*" if the variable is set (regardless of its value). The
2399 * returned value is a copy of the configuration variable in text format, i.e,.
2400 * the same format that the text-based configuration file and wpa_config_set()
2401 * are using for the value. The caller is responsible for freeing the returned
2402 * value.
2403 */
2404char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
2405{
2406	size_t i;
2407
2408	if (ssid == NULL || var == NULL)
2409		return NULL;
2410
2411	for (i = 0; i < NUM_SSID_FIELDS; i++) {
2412		const struct parse_data *field = &ssid_fields[i];
2413		if (os_strcmp(var, field->name) == 0) {
2414			char *res = field->writer(field, ssid);
2415			if (field->key_data) {
2416				if (res && res[0]) {
2417					wpa_printf(MSG_DEBUG, "Do not allow "
2418						   "key_data field to be "
2419						   "exposed");
2420					str_clear_free(res);
2421					return os_strdup("*");
2422				}
2423
2424				os_free(res);
2425				return NULL;
2426			}
2427			return res;
2428		}
2429	}
2430
2431	return NULL;
2432}
2433#endif /* NO_CONFIG_WRITE */
2434
2435
2436/**
2437 * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
2438 * @ssid: Pointer to network configuration data
2439 *
2440 * This function must be called to update WPA PSK when either SSID or the
2441 * passphrase has changed for the network configuration.
2442 */
2443void wpa_config_update_psk(struct wpa_ssid *ssid)
2444{
2445#ifndef CONFIG_NO_PBKDF2
2446	pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
2447		    ssid->psk, PMK_LEN);
2448	wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
2449			ssid->psk, PMK_LEN);
2450	ssid->psk_set = 1;
2451#endif /* CONFIG_NO_PBKDF2 */
2452}
2453
2454
2455static int wpa_config_set_cred_req_conn_capab(struct wpa_cred *cred,
2456					      const char *value)
2457{
2458	u8 *proto;
2459	int **port;
2460	int *ports, *nports;
2461	const char *pos;
2462	unsigned int num_ports;
2463
2464	proto = os_realloc_array(cred->req_conn_capab_proto,
2465				 cred->num_req_conn_capab + 1, sizeof(u8));
2466	if (proto == NULL)
2467		return -1;
2468	cred->req_conn_capab_proto = proto;
2469
2470	port = os_realloc_array(cred->req_conn_capab_port,
2471				cred->num_req_conn_capab + 1, sizeof(int *));
2472	if (port == NULL)
2473		return -1;
2474	cred->req_conn_capab_port = port;
2475
2476	proto[cred->num_req_conn_capab] = atoi(value);
2477
2478	pos = os_strchr(value, ':');
2479	if (pos == NULL) {
2480		port[cred->num_req_conn_capab] = NULL;
2481		cred->num_req_conn_capab++;
2482		return 0;
2483	}
2484	pos++;
2485
2486	ports = NULL;
2487	num_ports = 0;
2488
2489	while (*pos) {
2490		nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2491		if (nports == NULL) {
2492			os_free(ports);
2493			return -1;
2494		}
2495		ports = nports;
2496		ports[num_ports++] = atoi(pos);
2497
2498		pos = os_strchr(pos, ',');
2499		if (pos == NULL)
2500			break;
2501		pos++;
2502	}
2503
2504	nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2505	if (nports == NULL) {
2506		os_free(ports);
2507		return -1;
2508	}
2509	ports = nports;
2510	ports[num_ports] = -1;
2511
2512	port[cred->num_req_conn_capab] = ports;
2513	cred->num_req_conn_capab++;
2514	return 0;
2515}
2516
2517
2518int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
2519			const char *value, int line)
2520{
2521	char *val;
2522	size_t len;
2523
2524	if (os_strcmp(var, "temporary") == 0) {
2525		cred->temporary = atoi(value);
2526		return 0;
2527	}
2528
2529	if (os_strcmp(var, "priority") == 0) {
2530		cred->priority = atoi(value);
2531		return 0;
2532	}
2533
2534	if (os_strcmp(var, "sp_priority") == 0) {
2535		int prio = atoi(value);
2536		if (prio < 0 || prio > 255)
2537			return -1;
2538		cred->sp_priority = prio;
2539		return 0;
2540	}
2541
2542	if (os_strcmp(var, "pcsc") == 0) {
2543		cred->pcsc = atoi(value);
2544		return 0;
2545	}
2546
2547	if (os_strcmp(var, "eap") == 0) {
2548		struct eap_method_type method;
2549		method.method = eap_peer_get_type(value, &method.vendor);
2550		if (method.vendor == EAP_VENDOR_IETF &&
2551		    method.method == EAP_TYPE_NONE) {
2552			wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
2553				   "for a credential", line, value);
2554			return -1;
2555		}
2556		os_free(cred->eap_method);
2557		cred->eap_method = os_malloc(sizeof(*cred->eap_method));
2558		if (cred->eap_method == NULL)
2559			return -1;
2560		os_memcpy(cred->eap_method, &method, sizeof(method));
2561		return 0;
2562	}
2563
2564	if (os_strcmp(var, "password") == 0 &&
2565	    os_strncmp(value, "ext:", 4) == 0) {
2566		str_clear_free(cred->password);
2567		cred->password = os_strdup(value);
2568		cred->ext_password = 1;
2569		return 0;
2570	}
2571
2572	if (os_strcmp(var, "update_identifier") == 0) {
2573		cred->update_identifier = atoi(value);
2574		return 0;
2575	}
2576
2577	if (os_strcmp(var, "min_dl_bandwidth_home") == 0) {
2578		cred->min_dl_bandwidth_home = atoi(value);
2579		return 0;
2580	}
2581
2582	if (os_strcmp(var, "min_ul_bandwidth_home") == 0) {
2583		cred->min_ul_bandwidth_home = atoi(value);
2584		return 0;
2585	}
2586
2587	if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0) {
2588		cred->min_dl_bandwidth_roaming = atoi(value);
2589		return 0;
2590	}
2591
2592	if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0) {
2593		cred->min_ul_bandwidth_roaming = atoi(value);
2594		return 0;
2595	}
2596
2597	if (os_strcmp(var, "max_bss_load") == 0) {
2598		cred->max_bss_load = atoi(value);
2599		return 0;
2600	}
2601
2602	if (os_strcmp(var, "req_conn_capab") == 0)
2603		return wpa_config_set_cred_req_conn_capab(cred, value);
2604
2605	if (os_strcmp(var, "ocsp") == 0) {
2606		cred->ocsp = atoi(value);
2607		return 0;
2608	}
2609
2610	if (os_strcmp(var, "sim_num") == 0) {
2611		cred->sim_num = atoi(value);
2612		return 0;
2613	}
2614
2615	val = wpa_config_parse_string(value, &len);
2616	if (val == NULL) {
2617		wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
2618			   "value '%s'.", line, var, value);
2619		return -1;
2620	}
2621
2622	if (os_strcmp(var, "realm") == 0) {
2623		os_free(cred->realm);
2624		cred->realm = val;
2625		return 0;
2626	}
2627
2628	if (os_strcmp(var, "username") == 0) {
2629		str_clear_free(cred->username);
2630		cred->username = val;
2631		return 0;
2632	}
2633
2634	if (os_strcmp(var, "password") == 0) {
2635		str_clear_free(cred->password);
2636		cred->password = val;
2637		cred->ext_password = 0;
2638		return 0;
2639	}
2640
2641	if (os_strcmp(var, "ca_cert") == 0) {
2642		os_free(cred->ca_cert);
2643		cred->ca_cert = val;
2644		return 0;
2645	}
2646
2647	if (os_strcmp(var, "client_cert") == 0) {
2648		os_free(cred->client_cert);
2649		cred->client_cert = val;
2650		return 0;
2651	}
2652
2653	if (os_strcmp(var, "private_key") == 0) {
2654		os_free(cred->private_key);
2655		cred->private_key = val;
2656		return 0;
2657	}
2658
2659	if (os_strcmp(var, "private_key_passwd") == 0) {
2660		str_clear_free(cred->private_key_passwd);
2661		cred->private_key_passwd = val;
2662		return 0;
2663	}
2664
2665	if (os_strcmp(var, "imsi") == 0) {
2666		os_free(cred->imsi);
2667		cred->imsi = val;
2668		return 0;
2669	}
2670
2671	if (os_strcmp(var, "milenage") == 0) {
2672		str_clear_free(cred->milenage);
2673		cred->milenage = val;
2674		return 0;
2675	}
2676
2677	if (os_strcmp(var, "domain_suffix_match") == 0) {
2678		os_free(cred->domain_suffix_match);
2679		cred->domain_suffix_match = val;
2680		return 0;
2681	}
2682
2683	if (os_strcmp(var, "domain") == 0) {
2684		char **new_domain;
2685		new_domain = os_realloc_array(cred->domain,
2686					      cred->num_domain + 1,
2687					      sizeof(char *));
2688		if (new_domain == NULL) {
2689			os_free(val);
2690			return -1;
2691		}
2692		new_domain[cred->num_domain++] = val;
2693		cred->domain = new_domain;
2694		return 0;
2695	}
2696
2697	if (os_strcmp(var, "phase1") == 0) {
2698		os_free(cred->phase1);
2699		cred->phase1 = val;
2700		return 0;
2701	}
2702
2703	if (os_strcmp(var, "phase2") == 0) {
2704		os_free(cred->phase2);
2705		cred->phase2 = val;
2706		return 0;
2707	}
2708
2709	if (os_strcmp(var, "roaming_consortium") == 0) {
2710		if (len < 3 || len > sizeof(cred->roaming_consortium)) {
2711			wpa_printf(MSG_ERROR, "Line %d: invalid "
2712				   "roaming_consortium length %d (3..15 "
2713				   "expected)", line, (int) len);
2714			os_free(val);
2715			return -1;
2716		}
2717		os_memcpy(cred->roaming_consortium, val, len);
2718		cred->roaming_consortium_len = len;
2719		os_free(val);
2720		return 0;
2721	}
2722
2723	if (os_strcmp(var, "required_roaming_consortium") == 0) {
2724		if (len < 3 || len > sizeof(cred->required_roaming_consortium))
2725		{
2726			wpa_printf(MSG_ERROR, "Line %d: invalid "
2727				   "required_roaming_consortium length %d "
2728				   "(3..15 expected)", line, (int) len);
2729			os_free(val);
2730			return -1;
2731		}
2732		os_memcpy(cred->required_roaming_consortium, val, len);
2733		cred->required_roaming_consortium_len = len;
2734		os_free(val);
2735		return 0;
2736	}
2737
2738	if (os_strcmp(var, "excluded_ssid") == 0) {
2739		struct excluded_ssid *e;
2740
2741		if (len > MAX_SSID_LEN) {
2742			wpa_printf(MSG_ERROR, "Line %d: invalid "
2743				   "excluded_ssid length %d", line, (int) len);
2744			os_free(val);
2745			return -1;
2746		}
2747
2748		e = os_realloc_array(cred->excluded_ssid,
2749				     cred->num_excluded_ssid + 1,
2750				     sizeof(struct excluded_ssid));
2751		if (e == NULL) {
2752			os_free(val);
2753			return -1;
2754		}
2755		cred->excluded_ssid = e;
2756
2757		e = &cred->excluded_ssid[cred->num_excluded_ssid++];
2758		os_memcpy(e->ssid, val, len);
2759		e->ssid_len = len;
2760
2761		os_free(val);
2762
2763		return 0;
2764	}
2765
2766	if (os_strcmp(var, "roaming_partner") == 0) {
2767		struct roaming_partner *p;
2768		char *pos;
2769
2770		p = os_realloc_array(cred->roaming_partner,
2771				     cred->num_roaming_partner + 1,
2772				     sizeof(struct roaming_partner));
2773		if (p == NULL) {
2774			os_free(val);
2775			return -1;
2776		}
2777		cred->roaming_partner = p;
2778
2779		p = &cred->roaming_partner[cred->num_roaming_partner];
2780
2781		pos = os_strchr(val, ',');
2782		if (pos == NULL) {
2783			os_free(val);
2784			return -1;
2785		}
2786		*pos++ = '\0';
2787		if (pos - val - 1 >= (int) sizeof(p->fqdn)) {
2788			os_free(val);
2789			return -1;
2790		}
2791		os_memcpy(p->fqdn, val, pos - val);
2792
2793		p->exact_match = atoi(pos);
2794
2795		pos = os_strchr(pos, ',');
2796		if (pos == NULL) {
2797			os_free(val);
2798			return -1;
2799		}
2800		*pos++ = '\0';
2801
2802		p->priority = atoi(pos);
2803
2804		pos = os_strchr(pos, ',');
2805		if (pos == NULL) {
2806			os_free(val);
2807			return -1;
2808		}
2809		*pos++ = '\0';
2810
2811		if (os_strlen(pos) >= sizeof(p->country)) {
2812			os_free(val);
2813			return -1;
2814		}
2815		os_memcpy(p->country, pos, os_strlen(pos) + 1);
2816
2817		cred->num_roaming_partner++;
2818		os_free(val);
2819
2820		return 0;
2821	}
2822
2823	if (os_strcmp(var, "provisioning_sp") == 0) {
2824		os_free(cred->provisioning_sp);
2825		cred->provisioning_sp = val;
2826		return 0;
2827	}
2828
2829	if (line) {
2830		wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
2831			   line, var);
2832	}
2833
2834	os_free(val);
2835
2836	return -1;
2837}
2838
2839
2840static char * alloc_int_str(int val)
2841{
2842	char *buf;
2843
2844	buf = os_malloc(20);
2845	if (buf == NULL)
2846		return NULL;
2847	os_snprintf(buf, 20, "%d", val);
2848	return buf;
2849}
2850
2851
2852static char * alloc_strdup(const char *str)
2853{
2854	if (str == NULL)
2855		return NULL;
2856	return os_strdup(str);
2857}
2858
2859
2860char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var)
2861{
2862	if (os_strcmp(var, "temporary") == 0)
2863		return alloc_int_str(cred->temporary);
2864
2865	if (os_strcmp(var, "priority") == 0)
2866		return alloc_int_str(cred->priority);
2867
2868	if (os_strcmp(var, "sp_priority") == 0)
2869		return alloc_int_str(cred->sp_priority);
2870
2871	if (os_strcmp(var, "pcsc") == 0)
2872		return alloc_int_str(cred->pcsc);
2873
2874	if (os_strcmp(var, "eap") == 0) {
2875		if (!cred->eap_method)
2876			return NULL;
2877		return alloc_strdup(eap_get_name(cred->eap_method[0].vendor,
2878						 cred->eap_method[0].method));
2879	}
2880
2881	if (os_strcmp(var, "update_identifier") == 0)
2882		return alloc_int_str(cred->update_identifier);
2883
2884	if (os_strcmp(var, "min_dl_bandwidth_home") == 0)
2885		return alloc_int_str(cred->min_dl_bandwidth_home);
2886
2887	if (os_strcmp(var, "min_ul_bandwidth_home") == 0)
2888		return alloc_int_str(cred->min_ul_bandwidth_home);
2889
2890	if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0)
2891		return alloc_int_str(cred->min_dl_bandwidth_roaming);
2892
2893	if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0)
2894		return alloc_int_str(cred->min_ul_bandwidth_roaming);
2895
2896	if (os_strcmp(var, "max_bss_load") == 0)
2897		return alloc_int_str(cred->max_bss_load);
2898
2899	if (os_strcmp(var, "req_conn_capab") == 0) {
2900		unsigned int i;
2901		char *buf, *end, *pos;
2902		int ret;
2903
2904		if (!cred->num_req_conn_capab)
2905			return NULL;
2906
2907		buf = os_malloc(4000);
2908		if (buf == NULL)
2909			return NULL;
2910		pos = buf;
2911		end = pos + 4000;
2912		for (i = 0; i < cred->num_req_conn_capab; i++) {
2913			int *ports;
2914
2915			ret = os_snprintf(pos, end - pos, "%s%u",
2916					  i > 0 ? "\n" : "",
2917					  cred->req_conn_capab_proto[i]);
2918			if (ret < 0 || ret >= end - pos)
2919				return buf;
2920			pos += ret;
2921
2922			ports = cred->req_conn_capab_port[i];
2923			if (ports) {
2924				int j;
2925				for (j = 0; ports[j] != -1; j++) {
2926					ret = os_snprintf(pos, end - pos,
2927							  "%s%d",
2928							  j > 0 ? "," : ":",
2929							  ports[j]);
2930					if (ret < 0 || ret >= end - pos)
2931						return buf;
2932					pos += ret;
2933				}
2934			}
2935		}
2936
2937		return buf;
2938	}
2939
2940	if (os_strcmp(var, "ocsp") == 0)
2941		return alloc_int_str(cred->ocsp);
2942
2943	if (os_strcmp(var, "realm") == 0)
2944		return alloc_strdup(cred->realm);
2945
2946	if (os_strcmp(var, "username") == 0)
2947		return alloc_strdup(cred->username);
2948
2949	if (os_strcmp(var, "password") == 0) {
2950		if (!cred->password)
2951			return NULL;
2952		return alloc_strdup("*");
2953	}
2954
2955	if (os_strcmp(var, "ca_cert") == 0)
2956		return alloc_strdup(cred->ca_cert);
2957
2958	if (os_strcmp(var, "client_cert") == 0)
2959		return alloc_strdup(cred->client_cert);
2960
2961	if (os_strcmp(var, "private_key") == 0)
2962		return alloc_strdup(cred->private_key);
2963
2964	if (os_strcmp(var, "private_key_passwd") == 0) {
2965		if (!cred->private_key_passwd)
2966			return NULL;
2967		return alloc_strdup("*");
2968	}
2969
2970	if (os_strcmp(var, "imsi") == 0)
2971		return alloc_strdup(cred->imsi);
2972
2973	if (os_strcmp(var, "milenage") == 0) {
2974		if (!(cred->milenage))
2975			return NULL;
2976		return alloc_strdup("*");
2977	}
2978
2979	if (os_strcmp(var, "domain_suffix_match") == 0)
2980		return alloc_strdup(cred->domain_suffix_match);
2981
2982	if (os_strcmp(var, "domain") == 0) {
2983		unsigned int i;
2984		char *buf, *end, *pos;
2985		int ret;
2986
2987		if (!cred->num_domain)
2988			return NULL;
2989
2990		buf = os_malloc(4000);
2991		if (buf == NULL)
2992			return NULL;
2993		pos = buf;
2994		end = pos + 4000;
2995
2996		for (i = 0; i < cred->num_domain; i++) {
2997			ret = os_snprintf(pos, end - pos, "%s%s",
2998					  i > 0 ? "\n" : "", cred->domain[i]);
2999			if (ret < 0 || ret >= end - pos)
3000				return buf;
3001			pos += ret;
3002		}
3003
3004		return buf;
3005	}
3006
3007	if (os_strcmp(var, "phase1") == 0)
3008		return alloc_strdup(cred->phase1);
3009
3010	if (os_strcmp(var, "phase2") == 0)
3011		return alloc_strdup(cred->phase2);
3012
3013	if (os_strcmp(var, "roaming_consortium") == 0) {
3014		size_t buflen;
3015		char *buf;
3016
3017		if (!cred->roaming_consortium_len)
3018			return NULL;
3019		buflen = cred->roaming_consortium_len * 2 + 1;
3020		buf = os_malloc(buflen);
3021		if (buf == NULL)
3022			return NULL;
3023		wpa_snprintf_hex(buf, buflen, cred->roaming_consortium,
3024				 cred->roaming_consortium_len);
3025		return buf;
3026	}
3027
3028	if (os_strcmp(var, "required_roaming_consortium") == 0) {
3029		size_t buflen;
3030		char *buf;
3031
3032		if (!cred->required_roaming_consortium_len)
3033			return NULL;
3034		buflen = cred->required_roaming_consortium_len * 2 + 1;
3035		buf = os_malloc(buflen);
3036		if (buf == NULL)
3037			return NULL;
3038		wpa_snprintf_hex(buf, buflen, cred->required_roaming_consortium,
3039				 cred->required_roaming_consortium_len);
3040		return buf;
3041	}
3042
3043	if (os_strcmp(var, "excluded_ssid") == 0) {
3044		unsigned int i;
3045		char *buf, *end, *pos;
3046
3047		if (!cred->num_excluded_ssid)
3048			return NULL;
3049
3050		buf = os_malloc(4000);
3051		if (buf == NULL)
3052			return NULL;
3053		pos = buf;
3054		end = pos + 4000;
3055
3056		for (i = 0; i < cred->num_excluded_ssid; i++) {
3057			struct excluded_ssid *e;
3058			int ret;
3059
3060			e = &cred->excluded_ssid[i];
3061			ret = os_snprintf(pos, end - pos, "%s%s",
3062					  i > 0 ? "\n" : "",
3063					  wpa_ssid_txt(e->ssid, e->ssid_len));
3064			if (ret < 0 || ret >= end - pos)
3065				return buf;
3066			pos += ret;
3067		}
3068
3069		return buf;
3070	}
3071
3072	if (os_strcmp(var, "roaming_partner") == 0) {
3073		unsigned int i;
3074		char *buf, *end, *pos;
3075
3076		if (!cred->num_roaming_partner)
3077			return NULL;
3078
3079		buf = os_malloc(4000);
3080		if (buf == NULL)
3081			return NULL;
3082		pos = buf;
3083		end = pos + 4000;
3084
3085		for (i = 0; i < cred->num_roaming_partner; i++) {
3086			struct roaming_partner *p;
3087			int ret;
3088
3089			p = &cred->roaming_partner[i];
3090			ret = os_snprintf(pos, end - pos, "%s%s,%d,%u,%s",
3091					  i > 0 ? "\n" : "",
3092					  p->fqdn, p->exact_match, p->priority,
3093					  p->country);
3094			if (ret < 0 || ret >= end - pos)
3095				return buf;
3096			pos += ret;
3097		}
3098
3099		return buf;
3100	}
3101
3102	if (os_strcmp(var, "provisioning_sp") == 0)
3103		return alloc_strdup(cred->provisioning_sp);
3104
3105	return NULL;
3106}
3107
3108
3109struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
3110{
3111	struct wpa_cred *cred;
3112
3113	cred = config->cred;
3114	while (cred) {
3115		if (id == cred->id)
3116			break;
3117		cred = cred->next;
3118	}
3119
3120	return cred;
3121}
3122
3123
3124struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
3125{
3126	int id;
3127	struct wpa_cred *cred, *last = NULL;
3128
3129	id = -1;
3130	cred = config->cred;
3131	while (cred) {
3132		if (cred->id > id)
3133			id = cred->id;
3134		last = cred;
3135		cred = cred->next;
3136	}
3137	id++;
3138
3139	cred = os_zalloc(sizeof(*cred));
3140	if (cred == NULL)
3141		return NULL;
3142	cred->id = id;
3143	cred->sim_num = DEFAULT_USER_SELECTED_SIM;
3144	if (last)
3145		last->next = cred;
3146	else
3147		config->cred = cred;
3148
3149	return cred;
3150}
3151
3152
3153int wpa_config_remove_cred(struct wpa_config *config, int id)
3154{
3155	struct wpa_cred *cred, *prev = NULL;
3156
3157	cred = config->cred;
3158	while (cred) {
3159		if (id == cred->id)
3160			break;
3161		prev = cred;
3162		cred = cred->next;
3163	}
3164
3165	if (cred == NULL)
3166		return -1;
3167
3168	if (prev)
3169		prev->next = cred->next;
3170	else
3171		config->cred = cred->next;
3172
3173	wpa_config_free_cred(cred);
3174	return 0;
3175}
3176
3177
3178#ifndef CONFIG_NO_CONFIG_BLOBS
3179/**
3180 * wpa_config_get_blob - Get a named configuration blob
3181 * @config: Configuration data from wpa_config_read()
3182 * @name: Name of the blob
3183 * Returns: Pointer to blob data or %NULL if not found
3184 */
3185const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
3186						   const char *name)
3187{
3188	struct wpa_config_blob *blob = config->blobs;
3189
3190	while (blob) {
3191		if (os_strcmp(blob->name, name) == 0)
3192			return blob;
3193		blob = blob->next;
3194	}
3195	return NULL;
3196}
3197
3198
3199/**
3200 * wpa_config_set_blob - Set or add a named configuration blob
3201 * @config: Configuration data from wpa_config_read()
3202 * @blob: New value for the blob
3203 *
3204 * Adds a new configuration blob or replaces the current value of an existing
3205 * blob.
3206 */
3207void wpa_config_set_blob(struct wpa_config *config,
3208			 struct wpa_config_blob *blob)
3209{
3210	wpa_config_remove_blob(config, blob->name);
3211	blob->next = config->blobs;
3212	config->blobs = blob;
3213}
3214
3215
3216/**
3217 * wpa_config_free_blob - Free blob data
3218 * @blob: Pointer to blob to be freed
3219 */
3220void wpa_config_free_blob(struct wpa_config_blob *blob)
3221{
3222	if (blob) {
3223		os_free(blob->name);
3224		bin_clear_free(blob->data, blob->len);
3225		os_free(blob);
3226	}
3227}
3228
3229
3230/**
3231 * wpa_config_remove_blob - Remove a named configuration blob
3232 * @config: Configuration data from wpa_config_read()
3233 * @name: Name of the blob to remove
3234 * Returns: 0 if blob was removed or -1 if blob was not found
3235 */
3236int wpa_config_remove_blob(struct wpa_config *config, const char *name)
3237{
3238	struct wpa_config_blob *pos = config->blobs, *prev = NULL;
3239
3240	while (pos) {
3241		if (os_strcmp(pos->name, name) == 0) {
3242			if (prev)
3243				prev->next = pos->next;
3244			else
3245				config->blobs = pos->next;
3246			wpa_config_free_blob(pos);
3247			return 0;
3248		}
3249		prev = pos;
3250		pos = pos->next;
3251	}
3252
3253	return -1;
3254}
3255#endif /* CONFIG_NO_CONFIG_BLOBS */
3256
3257
3258/**
3259 * wpa_config_alloc_empty - Allocate an empty configuration
3260 * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
3261 * socket
3262 * @driver_param: Driver parameters
3263 * Returns: Pointer to allocated configuration data or %NULL on failure
3264 */
3265struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
3266					   const char *driver_param)
3267{
3268	struct wpa_config *config;
3269	const int aCWmin = 4, aCWmax = 10;
3270	const struct hostapd_wmm_ac_params ac_bk =
3271		{ aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
3272	const struct hostapd_wmm_ac_params ac_be =
3273		{ aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
3274	const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
3275		{ aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
3276	const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
3277		{ aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
3278
3279	config = os_zalloc(sizeof(*config));
3280	if (config == NULL)
3281		return NULL;
3282	config->eapol_version = DEFAULT_EAPOL_VERSION;
3283	config->ap_scan = DEFAULT_AP_SCAN;
3284	config->fast_reauth = DEFAULT_FAST_REAUTH;
3285	config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
3286	config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
3287	config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
3288	config->p2p_optimize_listen_chan = DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN;
3289	config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
3290	config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
3291	config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
3292	config->max_num_sta = DEFAULT_MAX_NUM_STA;
3293	config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
3294	config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
3295	config->wmm_ac_params[0] = ac_be;
3296	config->wmm_ac_params[1] = ac_bk;
3297	config->wmm_ac_params[2] = ac_vi;
3298	config->wmm_ac_params[3] = ac_vo;
3299	config->p2p_search_delay = DEFAULT_P2P_SEARCH_DELAY;
3300	config->rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
3301
3302	if (ctrl_interface)
3303		config->ctrl_interface = os_strdup(ctrl_interface);
3304	if (driver_param)
3305		config->driver_param = os_strdup(driver_param);
3306
3307	return config;
3308}
3309
3310
3311#ifndef CONFIG_NO_STDOUT_DEBUG
3312/**
3313 * wpa_config_debug_dump_networks - Debug dump of configured networks
3314 * @config: Configuration data from wpa_config_read()
3315 */
3316void wpa_config_debug_dump_networks(struct wpa_config *config)
3317{
3318	int prio;
3319	struct wpa_ssid *ssid;
3320
3321	for (prio = 0; prio < config->num_prio; prio++) {
3322		ssid = config->pssid[prio];
3323		wpa_printf(MSG_DEBUG, "Priority group %d",
3324			   ssid->priority);
3325		while (ssid) {
3326			wpa_printf(MSG_DEBUG, "   id=%d ssid='%s'",
3327				   ssid->id,
3328				   wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3329			ssid = ssid->pnext;
3330		}
3331	}
3332}
3333#endif /* CONFIG_NO_STDOUT_DEBUG */
3334
3335
3336struct global_parse_data {
3337	char *name;
3338	int (*parser)(const struct global_parse_data *data,
3339		      struct wpa_config *config, int line, const char *value);
3340	void *param1, *param2, *param3;
3341	unsigned int changed_flag;
3342};
3343
3344
3345static int wpa_global_config_parse_int(const struct global_parse_data *data,
3346				       struct wpa_config *config, int line,
3347				       const char *pos)
3348{
3349	int val, *dst;
3350	char *end;
3351
3352	dst = (int *) (((u8 *) config) + (long) data->param1);
3353	val = strtol(pos, &end, 0);
3354	if (*end) {
3355		wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
3356			   line, pos);
3357		return -1;
3358	}
3359	*dst = val;
3360
3361	wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
3362
3363	if (data->param2 && *dst < (long) data->param2) {
3364		wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
3365			   "min_value=%ld)", line, data->name, *dst,
3366			   (long) data->param2);
3367		*dst = (long) data->param2;
3368		return -1;
3369	}
3370
3371	if (data->param3 && *dst > (long) data->param3) {
3372		wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
3373			   "max_value=%ld)", line, data->name, *dst,
3374			   (long) data->param3);
3375		*dst = (long) data->param3;
3376		return -1;
3377	}
3378
3379	return 0;
3380}
3381
3382
3383static int wpa_global_config_parse_str(const struct global_parse_data *data,
3384				       struct wpa_config *config, int line,
3385				       const char *pos)
3386{
3387	size_t len;
3388	char **dst, *tmp;
3389
3390	len = os_strlen(pos);
3391	if (data->param2 && len < (size_t) data->param2) {
3392		wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
3393			   "min_len=%ld)", line, data->name,
3394			   (unsigned long) len, (long) data->param2);
3395		return -1;
3396	}
3397
3398	if (data->param3 && len > (size_t) data->param3) {
3399		wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
3400			   "max_len=%ld)", line, data->name,
3401			   (unsigned long) len, (long) data->param3);
3402		return -1;
3403	}
3404
3405	tmp = os_strdup(pos);
3406	if (tmp == NULL)
3407		return -1;
3408
3409	dst = (char **) (((u8 *) config) + (long) data->param1);
3410	os_free(*dst);
3411	*dst = tmp;
3412	wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
3413
3414	return 0;
3415}
3416
3417
3418static int wpa_config_process_bgscan(const struct global_parse_data *data,
3419				     struct wpa_config *config, int line,
3420				     const char *pos)
3421{
3422	size_t len;
3423	char *tmp;
3424	int res;
3425
3426	tmp = wpa_config_parse_string(pos, &len);
3427	if (tmp == NULL) {
3428		wpa_printf(MSG_ERROR, "Line %d: failed to parse %s",
3429			   line, data->name);
3430		return -1;
3431	}
3432
3433	res = wpa_global_config_parse_str(data, config, line, tmp);
3434	os_free(tmp);
3435	return res;
3436}
3437
3438
3439static int wpa_global_config_parse_bin(const struct global_parse_data *data,
3440				       struct wpa_config *config, int line,
3441				       const char *pos)
3442{
3443	size_t len;
3444	struct wpabuf **dst, *tmp;
3445
3446	len = os_strlen(pos);
3447	if (len & 0x01)
3448		return -1;
3449
3450	tmp = wpabuf_alloc(len / 2);
3451	if (tmp == NULL)
3452		return -1;
3453
3454	if (hexstr2bin(pos, wpabuf_put(tmp, len / 2), len / 2)) {
3455		wpabuf_free(tmp);
3456		return -1;
3457	}
3458
3459	dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
3460	wpabuf_free(*dst);
3461	*dst = tmp;
3462	wpa_printf(MSG_DEBUG, "%s", data->name);
3463
3464	return 0;
3465}
3466
3467
3468static int wpa_config_process_freq_list(const struct global_parse_data *data,
3469					struct wpa_config *config, int line,
3470					const char *value)
3471{
3472	int *freqs;
3473
3474	freqs = wpa_config_parse_int_array(value);
3475	if (freqs == NULL)
3476		return -1;
3477	if (freqs[0] == 0) {
3478		os_free(freqs);
3479		freqs = NULL;
3480	}
3481	os_free(config->freq_list);
3482	config->freq_list = freqs;
3483	return 0;
3484}
3485
3486
3487#ifdef CONFIG_P2P
3488static int wpa_global_config_parse_ipv4(const struct global_parse_data *data,
3489					struct wpa_config *config, int line,
3490					const char *pos)
3491{
3492	u32 *dst;
3493	struct hostapd_ip_addr addr;
3494
3495	if (hostapd_parse_ip_addr(pos, &addr) < 0)
3496		return -1;
3497	if (addr.af != AF_INET)
3498		return -1;
3499
3500	dst = (u32 *) (((u8 *) config) + (long) data->param1);
3501	os_memcpy(dst, &addr.u.v4.s_addr, 4);
3502	wpa_printf(MSG_DEBUG, "%s = 0x%x", data->name,
3503		   WPA_GET_BE32((u8 *) dst));
3504
3505	return 0;
3506}
3507#endif /* CONFIG_P2P */
3508
3509
3510static int wpa_config_process_country(const struct global_parse_data *data,
3511				      struct wpa_config *config, int line,
3512				      const char *pos)
3513{
3514	if (!pos[0] || !pos[1]) {
3515		wpa_printf(MSG_DEBUG, "Invalid country set");
3516		return -1;
3517	}
3518	config->country[0] = pos[0];
3519	config->country[1] = pos[1];
3520	wpa_printf(MSG_DEBUG, "country='%c%c'",
3521		   config->country[0], config->country[1]);
3522	return 0;
3523}
3524
3525
3526static int wpa_config_process_load_dynamic_eap(
3527	const struct global_parse_data *data, struct wpa_config *config,
3528	int line, const char *so)
3529{
3530	int ret;
3531	wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
3532	ret = eap_peer_method_load(so);
3533	if (ret == -2) {
3534		wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
3535			   "reloading.");
3536	} else if (ret) {
3537		wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
3538			   "method '%s'.", line, so);
3539		return -1;
3540	}
3541
3542	return 0;
3543}
3544
3545
3546#ifdef CONFIG_WPS
3547
3548static int wpa_config_process_uuid(const struct global_parse_data *data,
3549				   struct wpa_config *config, int line,
3550				   const char *pos)
3551{
3552	char buf[40];
3553	if (uuid_str2bin(pos, config->uuid)) {
3554		wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
3555		return -1;
3556	}
3557	uuid_bin2str(config->uuid, buf, sizeof(buf));
3558	wpa_printf(MSG_DEBUG, "uuid=%s", buf);
3559	return 0;
3560}
3561
3562
3563static int wpa_config_process_device_type(
3564	const struct global_parse_data *data,
3565	struct wpa_config *config, int line, const char *pos)
3566{
3567	return wps_dev_type_str2bin(pos, config->device_type);
3568}
3569
3570
3571static int wpa_config_process_os_version(const struct global_parse_data *data,
3572					 struct wpa_config *config, int line,
3573					 const char *pos)
3574{
3575	if (hexstr2bin(pos, config->os_version, 4)) {
3576		wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
3577		return -1;
3578	}
3579	wpa_printf(MSG_DEBUG, "os_version=%08x",
3580		   WPA_GET_BE32(config->os_version));
3581	return 0;
3582}
3583
3584
3585static int wpa_config_process_wps_vendor_ext_m1(
3586	const struct global_parse_data *data,
3587	struct wpa_config *config, int line, const char *pos)
3588{
3589	struct wpabuf *tmp;
3590	int len = os_strlen(pos) / 2;
3591	u8 *p;
3592
3593	if (!len) {
3594		wpa_printf(MSG_ERROR, "Line %d: "
3595			   "invalid wps_vendor_ext_m1", line);
3596		return -1;
3597	}
3598
3599	tmp = wpabuf_alloc(len);
3600	if (tmp) {
3601		p = wpabuf_put(tmp, len);
3602
3603		if (hexstr2bin(pos, p, len)) {
3604			wpa_printf(MSG_ERROR, "Line %d: "
3605				   "invalid wps_vendor_ext_m1", line);
3606			wpabuf_free(tmp);
3607			return -1;
3608		}
3609
3610		wpabuf_free(config->wps_vendor_ext_m1);
3611		config->wps_vendor_ext_m1 = tmp;
3612	} else {
3613		wpa_printf(MSG_ERROR, "Can not allocate "
3614			   "memory for wps_vendor_ext_m1");
3615		return -1;
3616	}
3617
3618	return 0;
3619}
3620
3621#endif /* CONFIG_WPS */
3622
3623#ifdef CONFIG_P2P
3624static int wpa_config_process_sec_device_type(
3625	const struct global_parse_data *data,
3626	struct wpa_config *config, int line, const char *pos)
3627{
3628	int idx;
3629
3630	if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
3631		wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
3632			   "items", line);
3633		return -1;
3634	}
3635
3636	idx = config->num_sec_device_types;
3637
3638	if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
3639		return -1;
3640
3641	config->num_sec_device_types++;
3642	return 0;
3643}
3644
3645
3646static int wpa_config_process_p2p_pref_chan(
3647	const struct global_parse_data *data,
3648	struct wpa_config *config, int line, const char *pos)
3649{
3650	struct p2p_channel *pref = NULL, *n;
3651	unsigned int num = 0;
3652	const char *pos2;
3653	u8 op_class, chan;
3654
3655	/* format: class:chan,class:chan,... */
3656
3657	while (*pos) {
3658		op_class = atoi(pos);
3659		pos2 = os_strchr(pos, ':');
3660		if (pos2 == NULL)
3661			goto fail;
3662		pos2++;
3663		chan = atoi(pos2);
3664
3665		n = os_realloc_array(pref, num + 1,
3666				     sizeof(struct p2p_channel));
3667		if (n == NULL)
3668			goto fail;
3669		pref = n;
3670		pref[num].op_class = op_class;
3671		pref[num].chan = chan;
3672		num++;
3673
3674		pos = os_strchr(pos2, ',');
3675		if (pos == NULL)
3676			break;
3677		pos++;
3678	}
3679
3680	os_free(config->p2p_pref_chan);
3681	config->p2p_pref_chan = pref;
3682	config->num_p2p_pref_chan = num;
3683	wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
3684		    (u8 *) config->p2p_pref_chan,
3685		    config->num_p2p_pref_chan * sizeof(struct p2p_channel));
3686
3687	return 0;
3688
3689fail:
3690	os_free(pref);
3691	wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
3692	return -1;
3693}
3694
3695
3696static int wpa_config_process_p2p_no_go_freq(
3697	const struct global_parse_data *data,
3698	struct wpa_config *config, int line, const char *pos)
3699{
3700	int ret;
3701
3702	ret = freq_range_list_parse(&config->p2p_no_go_freq, pos);
3703	if (ret < 0) {
3704		wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_no_go_freq", line);
3705		return -1;
3706	}
3707
3708	wpa_printf(MSG_DEBUG, "P2P: p2p_no_go_freq with %u items",
3709		   config->p2p_no_go_freq.num);
3710
3711	return 0;
3712}
3713
3714#endif /* CONFIG_P2P */
3715
3716
3717static int wpa_config_process_hessid(
3718	const struct global_parse_data *data,
3719	struct wpa_config *config, int line, const char *pos)
3720{
3721	if (hwaddr_aton2(pos, config->hessid) < 0) {
3722		wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
3723			   line, pos);
3724		return -1;
3725	}
3726
3727	return 0;
3728}
3729
3730
3731static int wpa_config_process_sae_groups(
3732	const struct global_parse_data *data,
3733	struct wpa_config *config, int line, const char *pos)
3734{
3735	int *groups = wpa_config_parse_int_array(pos);
3736	if (groups == NULL) {
3737		wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
3738			   line, pos);
3739		return -1;
3740	}
3741
3742	os_free(config->sae_groups);
3743	config->sae_groups = groups;
3744
3745	return 0;
3746}
3747
3748
3749static int wpa_config_process_ap_vendor_elements(
3750	const struct global_parse_data *data,
3751	struct wpa_config *config, int line, const char *pos)
3752{
3753	struct wpabuf *tmp;
3754	int len = os_strlen(pos) / 2;
3755	u8 *p;
3756
3757	if (!len) {
3758		wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
3759			   line);
3760		return -1;
3761	}
3762
3763	tmp = wpabuf_alloc(len);
3764	if (tmp) {
3765		p = wpabuf_put(tmp, len);
3766
3767		if (hexstr2bin(pos, p, len)) {
3768			wpa_printf(MSG_ERROR, "Line %d: invalid "
3769				   "ap_vendor_elements", line);
3770			wpabuf_free(tmp);
3771			return -1;
3772		}
3773
3774		wpabuf_free(config->ap_vendor_elements);
3775		config->ap_vendor_elements = tmp;
3776	} else {
3777		wpa_printf(MSG_ERROR, "Cannot allocate memory for "
3778			   "ap_vendor_elements");
3779		return -1;
3780	}
3781
3782	return 0;
3783}
3784
3785
3786#ifdef CONFIG_CTRL_IFACE
3787static int wpa_config_process_no_ctrl_interface(
3788	const struct global_parse_data *data,
3789	struct wpa_config *config, int line, const char *pos)
3790{
3791	wpa_printf(MSG_DEBUG, "no_ctrl_interface -> ctrl_interface=NULL");
3792	os_free(config->ctrl_interface);
3793	config->ctrl_interface = NULL;
3794	return 0;
3795}
3796#endif /* CONFIG_CTRL_IFACE */
3797
3798
3799#ifdef OFFSET
3800#undef OFFSET
3801#endif /* OFFSET */
3802/* OFFSET: Get offset of a variable within the wpa_config structure */
3803#define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
3804
3805#define FUNC(f) #f, wpa_config_process_ ## f, OFFSET(f), NULL, NULL
3806#define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL
3807#define _INT(f) #f, wpa_global_config_parse_int, OFFSET(f)
3808#define INT(f) _INT(f), NULL, NULL
3809#define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
3810#define _STR(f) #f, wpa_global_config_parse_str, OFFSET(f)
3811#define STR(f) _STR(f), NULL, NULL
3812#define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
3813#define BIN(f) #f, wpa_global_config_parse_bin, OFFSET(f), NULL, NULL
3814#define IPV4(f) #f, wpa_global_config_parse_ipv4, OFFSET(f), NULL, NULL
3815
3816static const struct global_parse_data global_fields[] = {
3817#ifdef CONFIG_CTRL_IFACE
3818	{ STR(ctrl_interface), 0 },
3819	{ FUNC_NO_VAR(no_ctrl_interface), 0 },
3820	{ STR(ctrl_interface_group), 0 } /* deprecated */,
3821#endif /* CONFIG_CTRL_IFACE */
3822#ifdef CONFIG_MACSEC
3823	{ INT_RANGE(eapol_version, 1, 3), 0 },
3824#else /* CONFIG_MACSEC */
3825	{ INT_RANGE(eapol_version, 1, 2), 0 },
3826#endif /* CONFIG_MACSEC */
3827	{ INT(ap_scan), 0 },
3828	{ FUNC(bgscan), 0 },
3829	{ INT(disable_scan_offload), 0 },
3830	{ INT(fast_reauth), 0 },
3831	{ STR(opensc_engine_path), 0 },
3832	{ STR(pkcs11_engine_path), 0 },
3833	{ STR(pkcs11_module_path), 0 },
3834	{ STR(pcsc_reader), 0 },
3835	{ STR(pcsc_pin), 0 },
3836	{ INT(external_sim), 0 },
3837	{ STR(driver_param), 0 },
3838	{ INT(dot11RSNAConfigPMKLifetime), 0 },
3839	{ INT(dot11RSNAConfigPMKReauthThreshold), 0 },
3840	{ INT(dot11RSNAConfigSATimeout), 0 },
3841#ifndef CONFIG_NO_CONFIG_WRITE
3842	{ INT(update_config), 0 },
3843#endif /* CONFIG_NO_CONFIG_WRITE */
3844	{ FUNC_NO_VAR(load_dynamic_eap), 0 },
3845#ifdef CONFIG_WPS
3846	{ FUNC(uuid), CFG_CHANGED_UUID },
3847	{ STR_RANGE(device_name, 0, 32), CFG_CHANGED_DEVICE_NAME },
3848	{ STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
3849	{ STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
3850	{ STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
3851	{ STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
3852	{ FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
3853	{ FUNC(os_version), CFG_CHANGED_OS_VERSION },
3854	{ STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
3855	{ INT_RANGE(wps_cred_processing, 0, 2), 0 },
3856	{ FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
3857#endif /* CONFIG_WPS */
3858#ifdef CONFIG_P2P
3859	{ FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
3860	{ INT(p2p_listen_reg_class), 0 },
3861	{ INT(p2p_listen_channel), 0 },
3862	{ INT(p2p_oper_reg_class), CFG_CHANGED_P2P_OPER_CHANNEL },
3863	{ INT(p2p_oper_channel), CFG_CHANGED_P2P_OPER_CHANNEL },
3864	{ INT_RANGE(p2p_go_intent, 0, 15), 0 },
3865	{ STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
3866	{ INT_RANGE(persistent_reconnect, 0, 1), 0 },
3867	{ INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
3868	{ INT(p2p_group_idle), 0 },
3869	{ INT_RANGE(p2p_passphrase_len, 8, 63),
3870	  CFG_CHANGED_P2P_PASSPHRASE_LEN },
3871	{ FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
3872	{ FUNC(p2p_no_go_freq), CFG_CHANGED_P2P_PREF_CHAN },
3873	{ INT_RANGE(p2p_add_cli_chan, 0, 1), 0 },
3874	{ INT_RANGE(p2p_optimize_listen_chan, 0, 1), 0 },
3875	{ INT(p2p_go_ht40), 0 },
3876	{ INT(p2p_go_vht), 0 },
3877	{ INT(p2p_disabled), 0 },
3878	{ INT(p2p_no_group_iface), 0 },
3879	{ INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
3880	{ IPV4(ip_addr_go), 0 },
3881	{ IPV4(ip_addr_mask), 0 },
3882	{ IPV4(ip_addr_start), 0 },
3883	{ IPV4(ip_addr_end), 0 },
3884#endif /* CONFIG_P2P */
3885	{ FUNC(country), CFG_CHANGED_COUNTRY },
3886	{ INT(bss_max_count), 0 },
3887	{ INT(bss_expiration_age), 0 },
3888	{ INT(bss_expiration_scan_count), 0 },
3889	{ INT_RANGE(filter_ssids, 0, 1), 0 },
3890	{ INT_RANGE(filter_rssi, -100, 0), 0 },
3891	{ INT(max_num_sta), 0 },
3892	{ INT_RANGE(disassoc_low_ack, 0, 1), 0 },
3893#ifdef CONFIG_HS20
3894	{ INT_RANGE(hs20, 0, 1), 0 },
3895#endif /* CONFIG_HS20 */
3896	{ INT_RANGE(interworking, 0, 1), 0 },
3897	{ FUNC(hessid), 0 },
3898	{ INT_RANGE(access_network_type, 0, 15), 0 },
3899	{ INT_RANGE(pbc_in_m1, 0, 1), 0 },
3900	{ STR(autoscan), 0 },
3901	{ INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
3902	  CFG_CHANGED_NFC_PASSWORD_TOKEN },
3903	{ BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
3904	{ BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
3905	{ BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
3906	{ STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
3907	{ INT(p2p_go_max_inactivity), 0 },
3908	{ INT_RANGE(auto_interworking, 0, 1), 0 },
3909	{ INT(okc), 0 },
3910	{ INT(pmf), 0 },
3911	{ FUNC(sae_groups), 0 },
3912	{ INT(dtim_period), 0 },
3913	{ INT(beacon_int), 0 },
3914	{ FUNC(ap_vendor_elements), 0 },
3915	{ INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
3916	{ FUNC(freq_list), 0 },
3917	{ INT(scan_cur_freq), 0 },
3918	{ INT(sched_scan_interval), 0 },
3919	{ INT(tdls_external_control), 0},
3920	{ STR(osu_dir), 0 },
3921	{ STR(wowlan_triggers), 0 },
3922	{ INT(p2p_search_delay), 0},
3923	{ INT(mac_addr), 0 },
3924	{ INT(rand_addr_lifetime), 0 },
3925	{ INT(preassoc_mac_addr), 0 },
3926};
3927
3928#undef FUNC
3929#undef _INT
3930#undef INT
3931#undef INT_RANGE
3932#undef _STR
3933#undef STR
3934#undef STR_RANGE
3935#undef BIN
3936#undef IPV4
3937#define NUM_GLOBAL_FIELDS ARRAY_SIZE(global_fields)
3938
3939
3940int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
3941{
3942	size_t i;
3943	int ret = 0;
3944
3945	for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
3946		const struct global_parse_data *field = &global_fields[i];
3947		size_t flen = os_strlen(field->name);
3948		if (os_strncmp(pos, field->name, flen) != 0 ||
3949		    pos[flen] != '=')
3950			continue;
3951
3952		if (field->parser(field, config, line, pos + flen + 1)) {
3953			wpa_printf(MSG_ERROR, "Line %d: failed to "
3954				   "parse '%s'.", line, pos);
3955			ret = -1;
3956		}
3957		if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
3958			config->wps_nfc_pw_from_config = 1;
3959		config->changed_parameters |= field->changed_flag;
3960		break;
3961	}
3962	if (i == NUM_GLOBAL_FIELDS) {
3963#ifdef CONFIG_AP
3964		if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
3965			char *tmp = os_strchr(pos, '=');
3966			if (tmp == NULL) {
3967				if (line < 0)
3968					return -1;
3969				wpa_printf(MSG_ERROR, "Line %d: invalid line "
3970					   "'%s'", line, pos);
3971				return -1;
3972			}
3973			*tmp++ = '\0';
3974			if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
3975						  tmp)) {
3976				wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
3977					   "AC item", line);
3978				return -1;
3979			}
3980		}
3981#endif /* CONFIG_AP */
3982		if (line < 0)
3983			return -1;
3984		wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
3985			   line, pos);
3986		ret = -1;
3987	}
3988
3989	return ret;
3990}
3991