config.c revision 6d6d685fd8e7ace3d5d5f79aee86f192759a030c 
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};
1758
1759#undef OFFSET
1760#undef _STR
1761#undef STR
1762#undef STR_KEY
1763#undef _STR_LEN
1764#undef STR_LEN
1765#undef STR_LEN_KEY
1766#undef _STR_RANGE
1767#undef STR_RANGE
1768#undef STR_RANGE_KEY
1769#undef _INT
1770#undef INT
1771#undef INT_RANGE
1772#undef _FUNC
1773#undef FUNC
1774#undef FUNC_KEY
1775#define NUM_SSID_FIELDS ARRAY_SIZE(ssid_fields)
1776
1777
1778/**
1779 * wpa_config_add_prio_network - Add a network to priority lists
1780 * @config: Configuration data from wpa_config_read()
1781 * @ssid: Pointer to the network configuration to be added to the list
1782 * Returns: 0 on success, -1 on failure
1783 *
1784 * This function is used to add a network block to the priority list of
1785 * networks. This must be called for each network when reading in the full
1786 * configuration. In addition, this can be used indirectly when updating
1787 * priorities by calling wpa_config_update_prio_list().
1788 */
1789int wpa_config_add_prio_network(struct wpa_config *config,
1790				struct wpa_ssid *ssid)
1791{
1792	int prio;
1793	struct wpa_ssid *prev, **nlist;
1794
1795	/*
1796	 * Add to an existing priority list if one is available for the
1797	 * configured priority level for this network.
1798	 */
1799	for (prio = 0; prio < config->num_prio; prio++) {
1800		prev = config->pssid[prio];
1801		if (prev->priority == ssid->priority) {
1802			while (prev->pnext)
1803				prev = prev->pnext;
1804			prev->pnext = ssid;
1805			return 0;
1806		}
1807	}
1808
1809	/* First network for this priority - add a new priority list */
1810	nlist = os_realloc_array(config->pssid, config->num_prio + 1,
1811				 sizeof(struct wpa_ssid *));
1812	if (nlist == NULL)
1813		return -1;
1814
1815	for (prio = 0; prio < config->num_prio; prio++) {
1816		if (nlist[prio]->priority < ssid->priority) {
1817			os_memmove(&nlist[prio + 1], &nlist[prio],
1818				   (config->num_prio - prio) *
1819				   sizeof(struct wpa_ssid *));
1820			break;
1821		}
1822	}
1823
1824	nlist[prio] = ssid;
1825	config->num_prio++;
1826	config->pssid = nlist;
1827
1828	return 0;
1829}
1830
1831
1832/**
1833 * wpa_config_update_prio_list - Update network priority list
1834 * @config: Configuration data from wpa_config_read()
1835 * Returns: 0 on success, -1 on failure
1836 *
1837 * This function is called to update the priority list of networks in the
1838 * configuration when a network is being added or removed. This is also called
1839 * if a priority for a network is changed.
1840 */
1841int wpa_config_update_prio_list(struct wpa_config *config)
1842{
1843	struct wpa_ssid *ssid;
1844	int ret = 0;
1845
1846	os_free(config->pssid);
1847	config->pssid = NULL;
1848	config->num_prio = 0;
1849
1850	ssid = config->ssid;
1851	while (ssid) {
1852		ssid->pnext = NULL;
1853		if (wpa_config_add_prio_network(config, ssid) < 0)
1854			ret = -1;
1855		ssid = ssid->next;
1856	}
1857
1858	return ret;
1859}
1860
1861
1862#ifdef IEEE8021X_EAPOL
1863static void eap_peer_config_free(struct eap_peer_config *eap)
1864{
1865	os_free(eap->eap_methods);
1866	bin_clear_free(eap->identity, eap->identity_len);
1867	os_free(eap->anonymous_identity);
1868	bin_clear_free(eap->password, eap->password_len);
1869	os_free(eap->ca_cert);
1870	os_free(eap->ca_path);
1871	os_free(eap->client_cert);
1872	os_free(eap->private_key);
1873	str_clear_free(eap->private_key_passwd);
1874	os_free(eap->dh_file);
1875	os_free(eap->subject_match);
1876	os_free(eap->altsubject_match);
1877	os_free(eap->domain_suffix_match);
1878	os_free(eap->ca_cert2);
1879	os_free(eap->ca_path2);
1880	os_free(eap->client_cert2);
1881	os_free(eap->private_key2);
1882	str_clear_free(eap->private_key2_passwd);
1883	os_free(eap->dh_file2);
1884	os_free(eap->subject_match2);
1885	os_free(eap->altsubject_match2);
1886	os_free(eap->domain_suffix_match2);
1887	os_free(eap->phase1);
1888	os_free(eap->phase2);
1889	os_free(eap->pcsc);
1890	str_clear_free(eap->pin);
1891	os_free(eap->engine_id);
1892	os_free(eap->key_id);
1893	os_free(eap->cert_id);
1894	os_free(eap->ca_cert_id);
1895	os_free(eap->key2_id);
1896	os_free(eap->cert2_id);
1897	os_free(eap->ca_cert2_id);
1898	str_clear_free(eap->pin2);
1899	os_free(eap->engine2_id);
1900	os_free(eap->otp);
1901	os_free(eap->pending_req_otp);
1902	os_free(eap->pac_file);
1903	bin_clear_free(eap->new_password, eap->new_password_len);
1904	str_clear_free(eap->external_sim_resp);
1905}
1906#endif /* IEEE8021X_EAPOL */
1907
1908
1909/**
1910 * wpa_config_free_ssid - Free network/ssid configuration data
1911 * @ssid: Configuration data for the network
1912 *
1913 * This function frees all resources allocated for the network configuration
1914 * data.
1915 */
1916void wpa_config_free_ssid(struct wpa_ssid *ssid)
1917{
1918	struct psk_list_entry *psk;
1919
1920	os_free(ssid->ssid);
1921	os_memset(ssid->psk, 0, sizeof(ssid->psk));
1922	str_clear_free(ssid->passphrase);
1923	os_free(ssid->ext_psk);
1924#ifdef IEEE8021X_EAPOL
1925	eap_peer_config_free(&ssid->eap);
1926#endif /* IEEE8021X_EAPOL */
1927	os_free(ssid->id_str);
1928	os_free(ssid->scan_freq);
1929	os_free(ssid->freq_list);
1930	os_free(ssid->bgscan);
1931	os_free(ssid->p2p_client_list);
1932#ifdef CONFIG_HT_OVERRIDES
1933	os_free(ssid->ht_mcs);
1934#endif /* CONFIG_HT_OVERRIDES */
1935	while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry,
1936				    list))) {
1937		dl_list_del(&psk->list);
1938		os_free(psk);
1939	}
1940	os_free(ssid);
1941}
1942
1943
1944void wpa_config_free_cred(struct wpa_cred *cred)
1945{
1946	size_t i;
1947
1948	os_free(cred->realm);
1949	str_clear_free(cred->username);
1950	str_clear_free(cred->password);
1951	os_free(cred->ca_cert);
1952	os_free(cred->client_cert);
1953	os_free(cred->private_key);
1954	str_clear_free(cred->private_key_passwd);
1955	os_free(cred->imsi);
1956	str_clear_free(cred->milenage);
1957	for (i = 0; i < cred->num_domain; i++)
1958		os_free(cred->domain[i]);
1959	os_free(cred->domain);
1960	os_free(cred->domain_suffix_match);
1961	os_free(cred->eap_method);
1962	os_free(cred->phase1);
1963	os_free(cred->phase2);
1964	os_free(cred->excluded_ssid);
1965	os_free(cred->roaming_partner);
1966	os_free(cred->provisioning_sp);
1967	for (i = 0; i < cred->num_req_conn_capab; i++)
1968		os_free(cred->req_conn_capab_port[i]);
1969	os_free(cred->req_conn_capab_port);
1970	os_free(cred->req_conn_capab_proto);
1971	os_free(cred);
1972}
1973
1974
1975void wpa_config_flush_blobs(struct wpa_config *config)
1976{
1977#ifndef CONFIG_NO_CONFIG_BLOBS
1978	struct wpa_config_blob *blob, *prev;
1979
1980	blob = config->blobs;
1981	config->blobs = NULL;
1982	while (blob) {
1983		prev = blob;
1984		blob = blob->next;
1985		wpa_config_free_blob(prev);
1986	}
1987#endif /* CONFIG_NO_CONFIG_BLOBS */
1988}
1989
1990
1991/**
1992 * wpa_config_free - Free configuration data
1993 * @config: Configuration data from wpa_config_read()
1994 *
1995 * This function frees all resources allocated for the configuration data by
1996 * wpa_config_read().
1997 */
1998void wpa_config_free(struct wpa_config *config)
1999{
2000	struct wpa_ssid *ssid, *prev = NULL;
2001	struct wpa_cred *cred, *cprev;
2002
2003	ssid = config->ssid;
2004	while (ssid) {
2005		prev = ssid;
2006		ssid = ssid->next;
2007		wpa_config_free_ssid(prev);
2008	}
2009
2010	cred = config->cred;
2011	while (cred) {
2012		cprev = cred;
2013		cred = cred->next;
2014		wpa_config_free_cred(cprev);
2015	}
2016
2017	wpa_config_flush_blobs(config);
2018
2019	wpabuf_free(config->wps_vendor_ext_m1);
2020	os_free(config->ctrl_interface);
2021	os_free(config->ctrl_interface_group);
2022	os_free(config->opensc_engine_path);
2023	os_free(config->pkcs11_engine_path);
2024	os_free(config->pkcs11_module_path);
2025	os_free(config->pcsc_reader);
2026	str_clear_free(config->pcsc_pin);
2027	os_free(config->driver_param);
2028	os_free(config->device_name);
2029	os_free(config->manufacturer);
2030	os_free(config->model_name);
2031	os_free(config->model_number);
2032	os_free(config->serial_number);
2033	os_free(config->config_methods);
2034	os_free(config->p2p_ssid_postfix);
2035	os_free(config->pssid);
2036	os_free(config->p2p_pref_chan);
2037	os_free(config->p2p_no_go_freq.range);
2038	os_free(config->autoscan);
2039	os_free(config->freq_list);
2040	wpabuf_free(config->wps_nfc_dh_pubkey);
2041	wpabuf_free(config->wps_nfc_dh_privkey);
2042	wpabuf_free(config->wps_nfc_dev_pw);
2043	os_free(config->ext_password_backend);
2044	os_free(config->sae_groups);
2045	wpabuf_free(config->ap_vendor_elements);
2046	os_free(config->osu_dir);
2047	os_free(config->wowlan_triggers);
2048	os_free(config);
2049}
2050
2051
2052/**
2053 * wpa_config_foreach_network - Iterate over each configured network
2054 * @config: Configuration data from wpa_config_read()
2055 * @func: Callback function to process each network
2056 * @arg: Opaque argument to pass to callback function
2057 *
2058 * Iterate over the set of configured networks calling the specified
2059 * function for each item. We guard against callbacks removing the
2060 * supplied network.
2061 */
2062void wpa_config_foreach_network(struct wpa_config *config,
2063				void (*func)(void *, struct wpa_ssid *),
2064				void *arg)
2065{
2066	struct wpa_ssid *ssid, *next;
2067
2068	ssid = config->ssid;
2069	while (ssid) {
2070		next = ssid->next;
2071		func(arg, ssid);
2072		ssid = next;
2073	}
2074}
2075
2076
2077/**
2078 * wpa_config_get_network - Get configured network based on id
2079 * @config: Configuration data from wpa_config_read()
2080 * @id: Unique network id to search for
2081 * Returns: Network configuration or %NULL if not found
2082 */
2083struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
2084{
2085	struct wpa_ssid *ssid;
2086
2087	ssid = config->ssid;
2088	while (ssid) {
2089		if (id == ssid->id)
2090			break;
2091		ssid = ssid->next;
2092	}
2093
2094	return ssid;
2095}
2096
2097
2098/**
2099 * wpa_config_add_network - Add a new network with empty configuration
2100 * @config: Configuration data from wpa_config_read()
2101 * Returns: The new network configuration or %NULL if operation failed
2102 */
2103struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
2104{
2105	int id;
2106	struct wpa_ssid *ssid, *last = NULL;
2107
2108	id = -1;
2109	ssid = config->ssid;
2110	while (ssid) {
2111		if (ssid->id > id)
2112			id = ssid->id;
2113		last = ssid;
2114		ssid = ssid->next;
2115	}
2116	id++;
2117
2118	ssid = os_zalloc(sizeof(*ssid));
2119	if (ssid == NULL)
2120		return NULL;
2121	ssid->id = id;
2122	dl_list_init(&ssid->psk_list);
2123	if (last)
2124		last->next = ssid;
2125	else
2126		config->ssid = ssid;
2127
2128	wpa_config_update_prio_list(config);
2129
2130	return ssid;
2131}
2132
2133
2134/**
2135 * wpa_config_remove_network - Remove a configured network based on id
2136 * @config: Configuration data from wpa_config_read()
2137 * @id: Unique network id to search for
2138 * Returns: 0 on success, or -1 if the network was not found
2139 */
2140int wpa_config_remove_network(struct wpa_config *config, int id)
2141{
2142	struct wpa_ssid *ssid, *prev = NULL;
2143
2144	ssid = config->ssid;
2145	while (ssid) {
2146		if (id == ssid->id)
2147			break;
2148		prev = ssid;
2149		ssid = ssid->next;
2150	}
2151
2152	if (ssid == NULL)
2153		return -1;
2154
2155	if (prev)
2156		prev->next = ssid->next;
2157	else
2158		config->ssid = ssid->next;
2159
2160	wpa_config_update_prio_list(config);
2161	wpa_config_free_ssid(ssid);
2162	return 0;
2163}
2164
2165
2166/**
2167 * wpa_config_set_network_defaults - Set network default values
2168 * @ssid: Pointer to network configuration data
2169 */
2170void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2171{
2172	ssid->proto = DEFAULT_PROTO;
2173	ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2174	ssid->group_cipher = DEFAULT_GROUP;
2175	ssid->key_mgmt = DEFAULT_KEY_MGMT;
2176	ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2177#ifdef IEEE8021X_EAPOL
2178	ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2179	ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2180	ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2181	ssid->eap.sim_num = DEFAULT_USER_SELECTED_SIM;
2182#endif /* IEEE8021X_EAPOL */
2183#ifdef CONFIG_HT_OVERRIDES
2184	ssid->disable_ht = DEFAULT_DISABLE_HT;
2185	ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2186	ssid->disable_sgi = DEFAULT_DISABLE_SGI;
2187	ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
2188	ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2189	ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2190	ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2191#endif /* CONFIG_HT_OVERRIDES */
2192#ifdef CONFIG_VHT_OVERRIDES
2193	ssid->vht_rx_mcs_nss_1 = -1;
2194	ssid->vht_rx_mcs_nss_2 = -1;
2195	ssid->vht_rx_mcs_nss_3 = -1;
2196	ssid->vht_rx_mcs_nss_4 = -1;
2197	ssid->vht_rx_mcs_nss_5 = -1;
2198	ssid->vht_rx_mcs_nss_6 = -1;
2199	ssid->vht_rx_mcs_nss_7 = -1;
2200	ssid->vht_rx_mcs_nss_8 = -1;
2201	ssid->vht_tx_mcs_nss_1 = -1;
2202	ssid->vht_tx_mcs_nss_2 = -1;
2203	ssid->vht_tx_mcs_nss_3 = -1;
2204	ssid->vht_tx_mcs_nss_4 = -1;
2205	ssid->vht_tx_mcs_nss_5 = -1;
2206	ssid->vht_tx_mcs_nss_6 = -1;
2207	ssid->vht_tx_mcs_nss_7 = -1;
2208	ssid->vht_tx_mcs_nss_8 = -1;
2209#endif /* CONFIG_VHT_OVERRIDES */
2210	ssid->proactive_key_caching = -1;
2211#ifdef CONFIG_IEEE80211W
2212	ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2213#endif /* CONFIG_IEEE80211W */
2214}
2215
2216
2217/**
2218 * wpa_config_set - Set a variable in network configuration
2219 * @ssid: Pointer to network configuration data
2220 * @var: Variable name, e.g., "ssid"
2221 * @value: Variable value
2222 * @line: Line number in configuration file or 0 if not used
2223 * Returns: 0 on success, -1 on failure
2224 *
2225 * This function can be used to set network configuration variables based on
2226 * both the configuration file and management interface input. The value
2227 * parameter must be in the same format as the text-based configuration file is
2228 * using. For example, strings are using double quotation marks.
2229 */
2230int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2231		   int line)
2232{
2233	size_t i;
2234	int ret = 0;
2235
2236	if (ssid == NULL || var == NULL || value == NULL)
2237		return -1;
2238
2239	for (i = 0; i < NUM_SSID_FIELDS; i++) {
2240		const struct parse_data *field = &ssid_fields[i];
2241		if (os_strcmp(var, field->name) != 0)
2242			continue;
2243
2244		if (field->parser(field, ssid, line, value)) {
2245			if (line) {
2246				wpa_printf(MSG_ERROR, "Line %d: failed to "
2247					   "parse %s '%s'.", line, var, value);
2248			}
2249			ret = -1;
2250		}
2251		break;
2252	}
2253	if (i == NUM_SSID_FIELDS) {
2254		if (line) {
2255			wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2256				   "'%s'.", line, var);
2257		}
2258		ret = -1;
2259	}
2260
2261	return ret;
2262}
2263
2264
2265int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2266			  const char *value)
2267{
2268	size_t len;
2269	char *buf;
2270	int ret;
2271
2272	len = os_strlen(value);
2273	buf = os_malloc(len + 3);
2274	if (buf == NULL)
2275		return -1;
2276	buf[0] = '"';
2277	os_memcpy(buf + 1, value, len);
2278	buf[len + 1] = '"';
2279	buf[len + 2] = '\0';
2280	ret = wpa_config_set(ssid, var, buf, 0);
2281	os_free(buf);
2282	return ret;
2283}
2284
2285
2286/**
2287 * wpa_config_get_all - Get all options from network configuration
2288 * @ssid: Pointer to network configuration data
2289 * @get_keys: Determines if keys/passwords will be included in returned list
2290 *	(if they may be exported)
2291 * Returns: %NULL terminated list of all set keys and their values in the form
2292 * of [key1, val1, key2, val2, ... , NULL]
2293 *
2294 * This function can be used to get list of all configured network properties.
2295 * The caller is responsible for freeing the returned list and all its
2296 * elements.
2297 */
2298char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2299{
2300	const struct parse_data *field;
2301	char *key, *value;
2302	size_t i;
2303	char **props;
2304	int fields_num;
2305
2306	get_keys = get_keys && ssid->export_keys;
2307
2308	props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
2309	if (!props)
2310		return NULL;
2311
2312	fields_num = 0;
2313	for (i = 0; i < NUM_SSID_FIELDS; i++) {
2314		field = &ssid_fields[i];
2315		if (field->key_data && !get_keys)
2316			continue;
2317		value = field->writer(field, ssid);
2318		if (value == NULL)
2319			continue;
2320		if (os_strlen(value) == 0) {
2321			os_free(value);
2322			continue;
2323		}
2324
2325		key = os_strdup(field->name);
2326		if (key == NULL) {
2327			os_free(value);
2328			goto err;
2329		}
2330
2331		props[fields_num * 2] = key;
2332		props[fields_num * 2 + 1] = value;
2333
2334		fields_num++;
2335	}
2336
2337	return props;
2338
2339err:
2340	value = *props;
2341	while (value)
2342		os_free(value++);
2343	os_free(props);
2344	return NULL;
2345}
2346
2347
2348#ifndef NO_CONFIG_WRITE
2349/**
2350 * wpa_config_get - Get a variable in network configuration
2351 * @ssid: Pointer to network configuration data
2352 * @var: Variable name, e.g., "ssid"
2353 * Returns: Value of the variable or %NULL on failure
2354 *
2355 * This function can be used to get network configuration variables. The
2356 * returned value is a copy of the configuration variable in text format, i.e,.
2357 * the same format that the text-based configuration file and wpa_config_set()
2358 * are using for the value. The caller is responsible for freeing the returned
2359 * value.
2360 */
2361char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2362{
2363	size_t i;
2364
2365	if (ssid == NULL || var == NULL)
2366		return NULL;
2367
2368	for (i = 0; i < NUM_SSID_FIELDS; i++) {
2369		const struct parse_data *field = &ssid_fields[i];
2370		if (os_strcmp(var, field->name) == 0) {
2371			char *ret = field->writer(field, ssid);
2372			if (os_strchr(ret, '\r') != NULL || os_strchr(ret, '\n') != NULL) {
2373				wpa_printf(MSG_ERROR, "Found newline in value for %s; "
2374					"not returning it", var);
2375				os_free(ret);
2376				ret = NULL;
2377			}
2378			return ret;
2379		}
2380	}
2381
2382	return NULL;
2383}
2384
2385
2386/**
2387 * wpa_config_get_no_key - Get a variable in network configuration (no keys)
2388 * @ssid: Pointer to network configuration data
2389 * @var: Variable name, e.g., "ssid"
2390 * Returns: Value of the variable or %NULL on failure
2391 *
2392 * This function can be used to get network configuration variable like
2393 * wpa_config_get(). The only difference is that this functions does not expose
2394 * key/password material from the configuration. In case a key/password field
2395 * is requested, the returned value is an empty string or %NULL if the variable
2396 * is not set or "*" if the variable is set (regardless of its value). The
2397 * returned value is a copy of the configuration variable in text format, i.e,.
2398 * the same format that the text-based configuration file and wpa_config_set()
2399 * are using for the value. The caller is responsible for freeing the returned
2400 * value.
2401 */
2402char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
2403{
2404	size_t i;
2405
2406	if (ssid == NULL || var == NULL)
2407		return NULL;
2408
2409	for (i = 0; i < NUM_SSID_FIELDS; i++) {
2410		const struct parse_data *field = &ssid_fields[i];
2411		if (os_strcmp(var, field->name) == 0) {
2412			char *res = field->writer(field, ssid);
2413			if (field->key_data) {
2414				if (res && res[0]) {
2415					wpa_printf(MSG_DEBUG, "Do not allow "
2416						   "key_data field to be "
2417						   "exposed");
2418					str_clear_free(res);
2419					return os_strdup("*");
2420				}
2421
2422				os_free(res);
2423				return NULL;
2424			}
2425			return res;
2426		}
2427	}
2428
2429	return NULL;
2430}
2431#endif /* NO_CONFIG_WRITE */
2432
2433
2434/**
2435 * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
2436 * @ssid: Pointer to network configuration data
2437 *
2438 * This function must be called to update WPA PSK when either SSID or the
2439 * passphrase has changed for the network configuration.
2440 */
2441void wpa_config_update_psk(struct wpa_ssid *ssid)
2442{
2443#ifndef CONFIG_NO_PBKDF2
2444	pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
2445		    ssid->psk, PMK_LEN);
2446	wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
2447			ssid->psk, PMK_LEN);
2448	ssid->psk_set = 1;
2449#endif /* CONFIG_NO_PBKDF2 */
2450}
2451
2452
2453static int wpa_config_set_cred_req_conn_capab(struct wpa_cred *cred,
2454					      const char *value)
2455{
2456	u8 *proto;
2457	int **port;
2458	int *ports, *nports;
2459	const char *pos;
2460	unsigned int num_ports;
2461
2462	proto = os_realloc_array(cred->req_conn_capab_proto,
2463				 cred->num_req_conn_capab + 1, sizeof(u8));
2464	if (proto == NULL)
2465		return -1;
2466	cred->req_conn_capab_proto = proto;
2467
2468	port = os_realloc_array(cred->req_conn_capab_port,
2469				cred->num_req_conn_capab + 1, sizeof(int *));
2470	if (port == NULL)
2471		return -1;
2472	cred->req_conn_capab_port = port;
2473
2474	proto[cred->num_req_conn_capab] = atoi(value);
2475
2476	pos = os_strchr(value, ':');
2477	if (pos == NULL) {
2478		port[cred->num_req_conn_capab] = NULL;
2479		cred->num_req_conn_capab++;
2480		return 0;
2481	}
2482	pos++;
2483
2484	ports = NULL;
2485	num_ports = 0;
2486
2487	while (*pos) {
2488		nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2489		if (nports == NULL) {
2490			os_free(ports);
2491			return -1;
2492		}
2493		ports = nports;
2494		ports[num_ports++] = atoi(pos);
2495
2496		pos = os_strchr(pos, ',');
2497		if (pos == NULL)
2498			break;
2499		pos++;
2500	}
2501
2502	nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2503	if (nports == NULL) {
2504		os_free(ports);
2505		return -1;
2506	}
2507	ports = nports;
2508	ports[num_ports] = -1;
2509
2510	port[cred->num_req_conn_capab] = ports;
2511	cred->num_req_conn_capab++;
2512	return 0;
2513}
2514
2515
2516int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
2517			const char *value, int line)
2518{
2519	char *val;
2520	size_t len;
2521
2522	if (os_strcmp(var, "temporary") == 0) {
2523		cred->temporary = atoi(value);
2524		return 0;
2525	}
2526
2527	if (os_strcmp(var, "priority") == 0) {
2528		cred->priority = atoi(value);
2529		return 0;
2530	}
2531
2532	if (os_strcmp(var, "sp_priority") == 0) {
2533		int prio = atoi(value);
2534		if (prio < 0 || prio > 255)
2535			return -1;
2536		cred->sp_priority = prio;
2537		return 0;
2538	}
2539
2540	if (os_strcmp(var, "pcsc") == 0) {
2541		cred->pcsc = atoi(value);
2542		return 0;
2543	}
2544
2545	if (os_strcmp(var, "eap") == 0) {
2546		struct eap_method_type method;
2547		method.method = eap_peer_get_type(value, &method.vendor);
2548		if (method.vendor == EAP_VENDOR_IETF &&
2549		    method.method == EAP_TYPE_NONE) {
2550			wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
2551				   "for a credential", line, value);
2552			return -1;
2553		}
2554		os_free(cred->eap_method);
2555		cred->eap_method = os_malloc(sizeof(*cred->eap_method));
2556		if (cred->eap_method == NULL)
2557			return -1;
2558		os_memcpy(cred->eap_method, &method, sizeof(method));
2559		return 0;
2560	}
2561
2562	if (os_strcmp(var, "password") == 0 &&
2563	    os_strncmp(value, "ext:", 4) == 0) {
2564		str_clear_free(cred->password);
2565		cred->password = os_strdup(value);
2566		cred->ext_password = 1;
2567		return 0;
2568	}
2569
2570	if (os_strcmp(var, "update_identifier") == 0) {
2571		cred->update_identifier = atoi(value);
2572		return 0;
2573	}
2574
2575	if (os_strcmp(var, "min_dl_bandwidth_home") == 0) {
2576		cred->min_dl_bandwidth_home = atoi(value);
2577		return 0;
2578	}
2579
2580	if (os_strcmp(var, "min_ul_bandwidth_home") == 0) {
2581		cred->min_ul_bandwidth_home = atoi(value);
2582		return 0;
2583	}
2584
2585	if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0) {
2586		cred->min_dl_bandwidth_roaming = atoi(value);
2587		return 0;
2588	}
2589
2590	if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0) {
2591		cred->min_ul_bandwidth_roaming = atoi(value);
2592		return 0;
2593	}
2594
2595	if (os_strcmp(var, "max_bss_load") == 0) {
2596		cred->max_bss_load = atoi(value);
2597		return 0;
2598	}
2599
2600	if (os_strcmp(var, "req_conn_capab") == 0)
2601		return wpa_config_set_cred_req_conn_capab(cred, value);
2602
2603	if (os_strcmp(var, "ocsp") == 0) {
2604		cred->ocsp = atoi(value);
2605		return 0;
2606	}
2607
2608	if (os_strcmp(var, "sim_num") == 0) {
2609		cred->sim_num = atoi(value);
2610		return 0;
2611	}
2612
2613	val = wpa_config_parse_string(value, &len);
2614	if (val == NULL) {
2615		wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
2616			   "value '%s'.", line, var, value);
2617		return -1;
2618	}
2619
2620	if (os_strcmp(var, "realm") == 0) {
2621		os_free(cred->realm);
2622		cred->realm = val;
2623		return 0;
2624	}
2625
2626	if (os_strcmp(var, "username") == 0) {
2627		str_clear_free(cred->username);
2628		cred->username = val;
2629		return 0;
2630	}
2631
2632	if (os_strcmp(var, "password") == 0) {
2633		str_clear_free(cred->password);
2634		cred->password = val;
2635		cred->ext_password = 0;
2636		return 0;
2637	}
2638
2639	if (os_strcmp(var, "ca_cert") == 0) {
2640		os_free(cred->ca_cert);
2641		cred->ca_cert = val;
2642		return 0;
2643	}
2644
2645	if (os_strcmp(var, "client_cert") == 0) {
2646		os_free(cred->client_cert);
2647		cred->client_cert = val;
2648		return 0;
2649	}
2650
2651	if (os_strcmp(var, "private_key") == 0) {
2652		os_free(cred->private_key);
2653		cred->private_key = val;
2654		return 0;
2655	}
2656
2657	if (os_strcmp(var, "private_key_passwd") == 0) {
2658		str_clear_free(cred->private_key_passwd);
2659		cred->private_key_passwd = val;
2660		return 0;
2661	}
2662
2663	if (os_strcmp(var, "imsi") == 0) {
2664		os_free(cred->imsi);
2665		cred->imsi = val;
2666		return 0;
2667	}
2668
2669	if (os_strcmp(var, "milenage") == 0) {
2670		str_clear_free(cred->milenage);
2671		cred->milenage = val;
2672		return 0;
2673	}
2674
2675	if (os_strcmp(var, "domain_suffix_match") == 0) {
2676		os_free(cred->domain_suffix_match);
2677		cred->domain_suffix_match = val;
2678		return 0;
2679	}
2680
2681	if (os_strcmp(var, "domain") == 0) {
2682		char **new_domain;
2683		new_domain = os_realloc_array(cred->domain,
2684					      cred->num_domain + 1,
2685					      sizeof(char *));
2686		if (new_domain == NULL) {
2687			os_free(val);
2688			return -1;
2689		}
2690		new_domain[cred->num_domain++] = val;
2691		cred->domain = new_domain;
2692		return 0;
2693	}
2694
2695	if (os_strcmp(var, "phase1") == 0) {
2696		os_free(cred->phase1);
2697		cred->phase1 = val;
2698		return 0;
2699	}
2700
2701	if (os_strcmp(var, "phase2") == 0) {
2702		os_free(cred->phase2);
2703		cred->phase2 = val;
2704		return 0;
2705	}
2706
2707	if (os_strcmp(var, "roaming_consortium") == 0) {
2708		if (len < 3 || len > sizeof(cred->roaming_consortium)) {
2709			wpa_printf(MSG_ERROR, "Line %d: invalid "
2710				   "roaming_consortium length %d (3..15 "
2711				   "expected)", line, (int) len);
2712			os_free(val);
2713			return -1;
2714		}
2715		os_memcpy(cred->roaming_consortium, val, len);
2716		cred->roaming_consortium_len = len;
2717		os_free(val);
2718		return 0;
2719	}
2720
2721	if (os_strcmp(var, "required_roaming_consortium") == 0) {
2722		if (len < 3 || len > sizeof(cred->required_roaming_consortium))
2723		{
2724			wpa_printf(MSG_ERROR, "Line %d: invalid "
2725				   "required_roaming_consortium length %d "
2726				   "(3..15 expected)", line, (int) len);
2727			os_free(val);
2728			return -1;
2729		}
2730		os_memcpy(cred->required_roaming_consortium, val, len);
2731		cred->required_roaming_consortium_len = len;
2732		os_free(val);
2733		return 0;
2734	}
2735
2736	if (os_strcmp(var, "excluded_ssid") == 0) {
2737		struct excluded_ssid *e;
2738
2739		if (len > MAX_SSID_LEN) {
2740			wpa_printf(MSG_ERROR, "Line %d: invalid "
2741				   "excluded_ssid length %d", line, (int) len);
2742			os_free(val);
2743			return -1;
2744		}
2745
2746		e = os_realloc_array(cred->excluded_ssid,
2747				     cred->num_excluded_ssid + 1,
2748				     sizeof(struct excluded_ssid));
2749		if (e == NULL) {
2750			os_free(val);
2751			return -1;
2752		}
2753		cred->excluded_ssid = e;
2754
2755		e = &cred->excluded_ssid[cred->num_excluded_ssid++];
2756		os_memcpy(e->ssid, val, len);
2757		e->ssid_len = len;
2758
2759		os_free(val);
2760
2761		return 0;
2762	}
2763
2764	if (os_strcmp(var, "roaming_partner") == 0) {
2765		struct roaming_partner *p;
2766		char *pos;
2767
2768		p = os_realloc_array(cred->roaming_partner,
2769				     cred->num_roaming_partner + 1,
2770				     sizeof(struct roaming_partner));
2771		if (p == NULL) {
2772			os_free(val);
2773			return -1;
2774		}
2775		cred->roaming_partner = p;
2776
2777		p = &cred->roaming_partner[cred->num_roaming_partner];
2778
2779		pos = os_strchr(val, ',');
2780		if (pos == NULL) {
2781			os_free(val);
2782			return -1;
2783		}
2784		*pos++ = '\0';
2785		if (pos - val - 1 >= (int) sizeof(p->fqdn)) {
2786			os_free(val);
2787			return -1;
2788		}
2789		os_memcpy(p->fqdn, val, pos - val);
2790
2791		p->exact_match = atoi(pos);
2792
2793		pos = os_strchr(pos, ',');
2794		if (pos == NULL) {
2795			os_free(val);
2796			return -1;
2797		}
2798		*pos++ = '\0';
2799
2800		p->priority = atoi(pos);
2801
2802		pos = os_strchr(pos, ',');
2803		if (pos == NULL) {
2804			os_free(val);
2805			return -1;
2806		}
2807		*pos++ = '\0';
2808
2809		if (os_strlen(pos) >= sizeof(p->country)) {
2810			os_free(val);
2811			return -1;
2812		}
2813		os_memcpy(p->country, pos, os_strlen(pos) + 1);
2814
2815		cred->num_roaming_partner++;
2816		os_free(val);
2817
2818		return 0;
2819	}
2820
2821	if (os_strcmp(var, "provisioning_sp") == 0) {
2822		os_free(cred->provisioning_sp);
2823		cred->provisioning_sp = val;
2824		return 0;
2825	}
2826
2827	if (line) {
2828		wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
2829			   line, var);
2830	}
2831
2832	os_free(val);
2833
2834	return -1;
2835}
2836
2837
2838static char * alloc_int_str(int val)
2839{
2840	char *buf;
2841
2842	buf = os_malloc(20);
2843	if (buf == NULL)
2844		return NULL;
2845	os_snprintf(buf, 20, "%d", val);
2846	return buf;
2847}
2848
2849
2850static char * alloc_strdup(const char *str)
2851{
2852	if (str == NULL)
2853		return NULL;
2854	return os_strdup(str);
2855}
2856
2857
2858char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var)
2859{
2860	if (os_strcmp(var, "temporary") == 0)
2861		return alloc_int_str(cred->temporary);
2862
2863	if (os_strcmp(var, "priority") == 0)
2864		return alloc_int_str(cred->priority);
2865
2866	if (os_strcmp(var, "sp_priority") == 0)
2867		return alloc_int_str(cred->sp_priority);
2868
2869	if (os_strcmp(var, "pcsc") == 0)
2870		return alloc_int_str(cred->pcsc);
2871
2872	if (os_strcmp(var, "eap") == 0) {
2873		if (!cred->eap_method)
2874			return NULL;
2875		return alloc_strdup(eap_get_name(cred->eap_method[0].vendor,
2876						 cred->eap_method[0].method));
2877	}
2878
2879	if (os_strcmp(var, "update_identifier") == 0)
2880		return alloc_int_str(cred->update_identifier);
2881
2882	if (os_strcmp(var, "min_dl_bandwidth_home") == 0)
2883		return alloc_int_str(cred->min_dl_bandwidth_home);
2884
2885	if (os_strcmp(var, "min_ul_bandwidth_home") == 0)
2886		return alloc_int_str(cred->min_ul_bandwidth_home);
2887
2888	if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0)
2889		return alloc_int_str(cred->min_dl_bandwidth_roaming);
2890
2891	if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0)
2892		return alloc_int_str(cred->min_ul_bandwidth_roaming);
2893
2894	if (os_strcmp(var, "max_bss_load") == 0)
2895		return alloc_int_str(cred->max_bss_load);
2896
2897	if (os_strcmp(var, "req_conn_capab") == 0) {
2898		unsigned int i;
2899		char *buf, *end, *pos;
2900		int ret;
2901
2902		if (!cred->num_req_conn_capab)
2903			return NULL;
2904
2905		buf = os_malloc(4000);
2906		if (buf == NULL)
2907			return NULL;
2908		pos = buf;
2909		end = pos + 4000;
2910		for (i = 0; i < cred->num_req_conn_capab; i++) {
2911			int *ports;
2912
2913			ret = os_snprintf(pos, end - pos, "%s%u",
2914					  i > 0 ? "\n" : "",
2915					  cred->req_conn_capab_proto[i]);
2916			if (ret < 0 || ret >= end - pos)
2917				return buf;
2918			pos += ret;
2919
2920			ports = cred->req_conn_capab_port[i];
2921			if (ports) {
2922				int j;
2923				for (j = 0; ports[j] != -1; j++) {
2924					ret = os_snprintf(pos, end - pos,
2925							  "%s%d",
2926							  j > 0 ? "," : ":",
2927							  ports[j]);
2928					if (ret < 0 || ret >= end - pos)
2929						return buf;
2930					pos += ret;
2931				}
2932			}
2933		}
2934
2935		return buf;
2936	}
2937
2938	if (os_strcmp(var, "ocsp") == 0)
2939		return alloc_int_str(cred->ocsp);
2940
2941	if (os_strcmp(var, "realm") == 0)
2942		return alloc_strdup(cred->realm);
2943
2944	if (os_strcmp(var, "username") == 0)
2945		return alloc_strdup(cred->username);
2946
2947	if (os_strcmp(var, "password") == 0) {
2948		if (!cred->password)
2949			return NULL;
2950		return alloc_strdup("*");
2951	}
2952
2953	if (os_strcmp(var, "ca_cert") == 0)
2954		return alloc_strdup(cred->ca_cert);
2955
2956	if (os_strcmp(var, "client_cert") == 0)
2957		return alloc_strdup(cred->client_cert);
2958
2959	if (os_strcmp(var, "private_key") == 0)
2960		return alloc_strdup(cred->private_key);
2961
2962	if (os_strcmp(var, "private_key_passwd") == 0) {
2963		if (!cred->private_key_passwd)
2964			return NULL;
2965		return alloc_strdup("*");
2966	}
2967
2968	if (os_strcmp(var, "imsi") == 0)
2969		return alloc_strdup(cred->imsi);
2970
2971	if (os_strcmp(var, "milenage") == 0) {
2972		if (!(cred->milenage))
2973			return NULL;
2974		return alloc_strdup("*");
2975	}
2976
2977	if (os_strcmp(var, "domain_suffix_match") == 0)
2978		return alloc_strdup(cred->domain_suffix_match);
2979
2980	if (os_strcmp(var, "domain") == 0) {
2981		unsigned int i;
2982		char *buf, *end, *pos;
2983		int ret;
2984
2985		if (!cred->num_domain)
2986			return NULL;
2987
2988		buf = os_malloc(4000);
2989		if (buf == NULL)
2990			return NULL;
2991		pos = buf;
2992		end = pos + 4000;
2993
2994		for (i = 0; i < cred->num_domain; i++) {
2995			ret = os_snprintf(pos, end - pos, "%s%s",
2996					  i > 0 ? "\n" : "", cred->domain[i]);
2997			if (ret < 0 || ret >= end - pos)
2998				return buf;
2999			pos += ret;
3000		}
3001
3002		return buf;
3003	}
3004
3005	if (os_strcmp(var, "phase1") == 0)
3006		return alloc_strdup(cred->phase1);
3007
3008	if (os_strcmp(var, "phase2") == 0)
3009		return alloc_strdup(cred->phase2);
3010
3011	if (os_strcmp(var, "roaming_consortium") == 0) {
3012		size_t buflen;
3013		char *buf;
3014
3015		if (!cred->roaming_consortium_len)
3016			return NULL;
3017		buflen = cred->roaming_consortium_len * 2 + 1;
3018		buf = os_malloc(buflen);
3019		if (buf == NULL)
3020			return NULL;
3021		wpa_snprintf_hex(buf, buflen, cred->roaming_consortium,
3022				 cred->roaming_consortium_len);
3023		return buf;
3024	}
3025
3026	if (os_strcmp(var, "required_roaming_consortium") == 0) {
3027		size_t buflen;
3028		char *buf;
3029
3030		if (!cred->required_roaming_consortium_len)
3031			return NULL;
3032		buflen = cred->required_roaming_consortium_len * 2 + 1;
3033		buf = os_malloc(buflen);
3034		if (buf == NULL)
3035			return NULL;
3036		wpa_snprintf_hex(buf, buflen, cred->required_roaming_consortium,
3037				 cred->required_roaming_consortium_len);
3038		return buf;
3039	}
3040
3041	if (os_strcmp(var, "excluded_ssid") == 0) {
3042		unsigned int i;
3043		char *buf, *end, *pos;
3044
3045		if (!cred->num_excluded_ssid)
3046			return NULL;
3047
3048		buf = os_malloc(4000);
3049		if (buf == NULL)
3050			return NULL;
3051		pos = buf;
3052		end = pos + 4000;
3053
3054		for (i = 0; i < cred->num_excluded_ssid; i++) {
3055			struct excluded_ssid *e;
3056			int ret;
3057
3058			e = &cred->excluded_ssid[i];
3059			ret = os_snprintf(pos, end - pos, "%s%s",
3060					  i > 0 ? "\n" : "",
3061					  wpa_ssid_txt(e->ssid, e->ssid_len));
3062			if (ret < 0 || ret >= end - pos)
3063				return buf;
3064			pos += ret;
3065		}
3066
3067		return buf;
3068	}
3069
3070	if (os_strcmp(var, "roaming_partner") == 0) {
3071		unsigned int i;
3072		char *buf, *end, *pos;
3073
3074		if (!cred->num_roaming_partner)
3075			return NULL;
3076
3077		buf = os_malloc(4000);
3078		if (buf == NULL)
3079			return NULL;
3080		pos = buf;
3081		end = pos + 4000;
3082
3083		for (i = 0; i < cred->num_roaming_partner; i++) {
3084			struct roaming_partner *p;
3085			int ret;
3086
3087			p = &cred->roaming_partner[i];
3088			ret = os_snprintf(pos, end - pos, "%s%s,%d,%u,%s",
3089					  i > 0 ? "\n" : "",
3090					  p->fqdn, p->exact_match, p->priority,
3091					  p->country);
3092			if (ret < 0 || ret >= end - pos)
3093				return buf;
3094			pos += ret;
3095		}
3096
3097		return buf;
3098	}
3099
3100	if (os_strcmp(var, "provisioning_sp") == 0)
3101		return alloc_strdup(cred->provisioning_sp);
3102
3103	return NULL;
3104}
3105
3106
3107struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
3108{
3109	struct wpa_cred *cred;
3110
3111	cred = config->cred;
3112	while (cred) {
3113		if (id == cred->id)
3114			break;
3115		cred = cred->next;
3116	}
3117
3118	return cred;
3119}
3120
3121
3122struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
3123{
3124	int id;
3125	struct wpa_cred *cred, *last = NULL;
3126
3127	id = -1;
3128	cred = config->cred;
3129	while (cred) {
3130		if (cred->id > id)
3131			id = cred->id;
3132		last = cred;
3133		cred = cred->next;
3134	}
3135	id++;
3136
3137	cred = os_zalloc(sizeof(*cred));
3138	if (cred == NULL)
3139		return NULL;
3140	cred->id = id;
3141	cred->sim_num = DEFAULT_USER_SELECTED_SIM;
3142	if (last)
3143		last->next = cred;
3144	else
3145		config->cred = cred;
3146
3147	return cred;
3148}
3149
3150
3151int wpa_config_remove_cred(struct wpa_config *config, int id)
3152{
3153	struct wpa_cred *cred, *prev = NULL;
3154
3155	cred = config->cred;
3156	while (cred) {
3157		if (id == cred->id)
3158			break;
3159		prev = cred;
3160		cred = cred->next;
3161	}
3162
3163	if (cred == NULL)
3164		return -1;
3165
3166	if (prev)
3167		prev->next = cred->next;
3168	else
3169		config->cred = cred->next;
3170
3171	wpa_config_free_cred(cred);
3172	return 0;
3173}
3174
3175
3176#ifndef CONFIG_NO_CONFIG_BLOBS
3177/**
3178 * wpa_config_get_blob - Get a named configuration blob
3179 * @config: Configuration data from wpa_config_read()
3180 * @name: Name of the blob
3181 * Returns: Pointer to blob data or %NULL if not found
3182 */
3183const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
3184						   const char *name)
3185{
3186	struct wpa_config_blob *blob = config->blobs;
3187
3188	while (blob) {
3189		if (os_strcmp(blob->name, name) == 0)
3190			return blob;
3191		blob = blob->next;
3192	}
3193	return NULL;
3194}
3195
3196
3197/**
3198 * wpa_config_set_blob - Set or add a named configuration blob
3199 * @config: Configuration data from wpa_config_read()
3200 * @blob: New value for the blob
3201 *
3202 * Adds a new configuration blob or replaces the current value of an existing
3203 * blob.
3204 */
3205void wpa_config_set_blob(struct wpa_config *config,
3206			 struct wpa_config_blob *blob)
3207{
3208	wpa_config_remove_blob(config, blob->name);
3209	blob->next = config->blobs;
3210	config->blobs = blob;
3211}
3212
3213
3214/**
3215 * wpa_config_free_blob - Free blob data
3216 * @blob: Pointer to blob to be freed
3217 */
3218void wpa_config_free_blob(struct wpa_config_blob *blob)
3219{
3220	if (blob) {
3221		os_free(blob->name);
3222		bin_clear_free(blob->data, blob->len);
3223		os_free(blob);
3224	}
3225}
3226
3227
3228/**
3229 * wpa_config_remove_blob - Remove a named configuration blob
3230 * @config: Configuration data from wpa_config_read()
3231 * @name: Name of the blob to remove
3232 * Returns: 0 if blob was removed or -1 if blob was not found
3233 */
3234int wpa_config_remove_blob(struct wpa_config *config, const char *name)
3235{
3236	struct wpa_config_blob *pos = config->blobs, *prev = NULL;
3237
3238	while (pos) {
3239		if (os_strcmp(pos->name, name) == 0) {
3240			if (prev)
3241				prev->next = pos->next;
3242			else
3243				config->blobs = pos->next;
3244			wpa_config_free_blob(pos);
3245			return 0;
3246		}
3247		prev = pos;
3248		pos = pos->next;
3249	}
3250
3251	return -1;
3252}
3253#endif /* CONFIG_NO_CONFIG_BLOBS */
3254
3255
3256/**
3257 * wpa_config_alloc_empty - Allocate an empty configuration
3258 * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
3259 * socket
3260 * @driver_param: Driver parameters
3261 * Returns: Pointer to allocated configuration data or %NULL on failure
3262 */
3263struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
3264					   const char *driver_param)
3265{
3266	struct wpa_config *config;
3267	const int aCWmin = 4, aCWmax = 10;
3268	const struct hostapd_wmm_ac_params ac_bk =
3269		{ aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
3270	const struct hostapd_wmm_ac_params ac_be =
3271		{ aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
3272	const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
3273		{ aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
3274	const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
3275		{ aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
3276
3277	config = os_zalloc(sizeof(*config));
3278	if (config == NULL)
3279		return NULL;
3280	config->eapol_version = DEFAULT_EAPOL_VERSION;
3281	config->ap_scan = DEFAULT_AP_SCAN;
3282	config->fast_reauth = DEFAULT_FAST_REAUTH;
3283	config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
3284	config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
3285	config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
3286	config->p2p_optimize_listen_chan = DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN;
3287	config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
3288	config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
3289	config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
3290	config->max_num_sta = DEFAULT_MAX_NUM_STA;
3291	config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
3292	config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
3293	config->wmm_ac_params[0] = ac_be;
3294	config->wmm_ac_params[1] = ac_bk;
3295	config->wmm_ac_params[2] = ac_vi;
3296	config->wmm_ac_params[3] = ac_vo;
3297	config->p2p_search_delay = DEFAULT_P2P_SEARCH_DELAY;
3298
3299	if (ctrl_interface)
3300		config->ctrl_interface = os_strdup(ctrl_interface);
3301	if (driver_param)
3302		config->driver_param = os_strdup(driver_param);
3303
3304	return config;
3305}
3306
3307
3308#ifndef CONFIG_NO_STDOUT_DEBUG
3309/**
3310 * wpa_config_debug_dump_networks - Debug dump of configured networks
3311 * @config: Configuration data from wpa_config_read()
3312 */
3313void wpa_config_debug_dump_networks(struct wpa_config *config)
3314{
3315	int prio;
3316	struct wpa_ssid *ssid;
3317
3318	for (prio = 0; prio < config->num_prio; prio++) {
3319		ssid = config->pssid[prio];
3320		wpa_printf(MSG_DEBUG, "Priority group %d",
3321			   ssid->priority);
3322		while (ssid) {
3323			wpa_printf(MSG_DEBUG, "   id=%d ssid='%s'",
3324				   ssid->id,
3325				   wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3326			ssid = ssid->pnext;
3327		}
3328	}
3329}
3330#endif /* CONFIG_NO_STDOUT_DEBUG */
3331
3332
3333struct global_parse_data {
3334	char *name;
3335	int (*parser)(const struct global_parse_data *data,
3336		      struct wpa_config *config, int line, const char *value);
3337	void *param1, *param2, *param3;
3338	unsigned int changed_flag;
3339};
3340
3341
3342static int wpa_global_config_parse_int(const struct global_parse_data *data,
3343				       struct wpa_config *config, int line,
3344				       const char *pos)
3345{
3346	int val, *dst;
3347	char *end;
3348
3349	dst = (int *) (((u8 *) config) + (long) data->param1);
3350	val = strtol(pos, &end, 0);
3351	if (*end) {
3352		wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
3353			   line, pos);
3354		return -1;
3355	}
3356	*dst = val;
3357
3358	wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
3359
3360	if (data->param2 && *dst < (long) data->param2) {
3361		wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
3362			   "min_value=%ld)", line, data->name, *dst,
3363			   (long) data->param2);
3364		*dst = (long) data->param2;
3365		return -1;
3366	}
3367
3368	if (data->param3 && *dst > (long) data->param3) {
3369		wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
3370			   "max_value=%ld)", line, data->name, *dst,
3371			   (long) data->param3);
3372		*dst = (long) data->param3;
3373		return -1;
3374	}
3375
3376	return 0;
3377}
3378
3379
3380static int wpa_global_config_parse_str(const struct global_parse_data *data,
3381				       struct wpa_config *config, int line,
3382				       const char *pos)
3383{
3384	size_t len;
3385	char **dst, *tmp;
3386
3387	len = os_strlen(pos);
3388	if (data->param2 && len < (size_t) data->param2) {
3389		wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
3390			   "min_len=%ld)", line, data->name,
3391			   (unsigned long) len, (long) data->param2);
3392		return -1;
3393	}
3394
3395	if (data->param3 && len > (size_t) data->param3) {
3396		wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
3397			   "max_len=%ld)", line, data->name,
3398			   (unsigned long) len, (long) data->param3);
3399		return -1;
3400	}
3401
3402	tmp = os_strdup(pos);
3403	if (tmp == NULL)
3404		return -1;
3405
3406	dst = (char **) (((u8 *) config) + (long) data->param1);
3407	os_free(*dst);
3408	*dst = tmp;
3409	wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
3410
3411	return 0;
3412}
3413
3414
3415static int wpa_config_process_bgscan(const struct global_parse_data *data,
3416				     struct wpa_config *config, int line,
3417				     const char *pos)
3418{
3419	size_t len;
3420	char *tmp;
3421	int res;
3422
3423	tmp = wpa_config_parse_string(pos, &len);
3424	if (tmp == NULL) {
3425		wpa_printf(MSG_ERROR, "Line %d: failed to parse %s",
3426			   line, data->name);
3427		return -1;
3428	}
3429
3430	res = wpa_global_config_parse_str(data, config, line, tmp);
3431	os_free(tmp);
3432	return res;
3433}
3434
3435
3436static int wpa_global_config_parse_bin(const struct global_parse_data *data,
3437				       struct wpa_config *config, int line,
3438				       const char *pos)
3439{
3440	size_t len;
3441	struct wpabuf **dst, *tmp;
3442
3443	len = os_strlen(pos);
3444	if (len & 0x01)
3445		return -1;
3446
3447	tmp = wpabuf_alloc(len / 2);
3448	if (tmp == NULL)
3449		return -1;
3450
3451	if (hexstr2bin(pos, wpabuf_put(tmp, len / 2), len / 2)) {
3452		wpabuf_free(tmp);
3453		return -1;
3454	}
3455
3456	dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
3457	wpabuf_free(*dst);
3458	*dst = tmp;
3459	wpa_printf(MSG_DEBUG, "%s", data->name);
3460
3461	return 0;
3462}
3463
3464
3465static int wpa_config_process_freq_list(const struct global_parse_data *data,
3466					struct wpa_config *config, int line,
3467					const char *value)
3468{
3469	int *freqs;
3470
3471	freqs = wpa_config_parse_int_array(value);
3472	if (freqs == NULL)
3473		return -1;
3474	if (freqs[0] == 0) {
3475		os_free(freqs);
3476		freqs = NULL;
3477	}
3478	os_free(config->freq_list);
3479	config->freq_list = freqs;
3480	return 0;
3481}
3482
3483
3484#ifdef CONFIG_P2P
3485static int wpa_global_config_parse_ipv4(const struct global_parse_data *data,
3486					struct wpa_config *config, int line,
3487					const char *pos)
3488{
3489	u32 *dst;
3490	struct hostapd_ip_addr addr;
3491
3492	if (hostapd_parse_ip_addr(pos, &addr) < 0)
3493		return -1;
3494	if (addr.af != AF_INET)
3495		return -1;
3496
3497	dst = (u32 *) (((u8 *) config) + (long) data->param1);
3498	os_memcpy(dst, &addr.u.v4.s_addr, 4);
3499	wpa_printf(MSG_DEBUG, "%s = 0x%x", data->name,
3500		   WPA_GET_BE32((u8 *) dst));
3501
3502	return 0;
3503}
3504#endif /* CONFIG_P2P */
3505
3506
3507static int wpa_config_process_country(const struct global_parse_data *data,
3508				      struct wpa_config *config, int line,
3509				      const char *pos)
3510{
3511	if (!pos[0] || !pos[1]) {
3512		wpa_printf(MSG_DEBUG, "Invalid country set");
3513		return -1;
3514	}
3515	config->country[0] = pos[0];
3516	config->country[1] = pos[1];
3517	wpa_printf(MSG_DEBUG, "country='%c%c'",
3518		   config->country[0], config->country[1]);
3519	return 0;
3520}
3521
3522
3523static int wpa_config_process_load_dynamic_eap(
3524	const struct global_parse_data *data, struct wpa_config *config,
3525	int line, const char *so)
3526{
3527	int ret;
3528	wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
3529	ret = eap_peer_method_load(so);
3530	if (ret == -2) {
3531		wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
3532			   "reloading.");
3533	} else if (ret) {
3534		wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
3535			   "method '%s'.", line, so);
3536		return -1;
3537	}
3538
3539	return 0;
3540}
3541
3542
3543#ifdef CONFIG_WPS
3544
3545static int wpa_config_process_uuid(const struct global_parse_data *data,
3546				   struct wpa_config *config, int line,
3547				   const char *pos)
3548{
3549	char buf[40];
3550	if (uuid_str2bin(pos, config->uuid)) {
3551		wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
3552		return -1;
3553	}
3554	uuid_bin2str(config->uuid, buf, sizeof(buf));
3555	wpa_printf(MSG_DEBUG, "uuid=%s", buf);
3556	return 0;
3557}
3558
3559
3560static int wpa_config_process_device_type(
3561	const struct global_parse_data *data,
3562	struct wpa_config *config, int line, const char *pos)
3563{
3564	return wps_dev_type_str2bin(pos, config->device_type);
3565}
3566
3567
3568static int wpa_config_process_os_version(const struct global_parse_data *data,
3569					 struct wpa_config *config, int line,
3570					 const char *pos)
3571{
3572	if (hexstr2bin(pos, config->os_version, 4)) {
3573		wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
3574		return -1;
3575	}
3576	wpa_printf(MSG_DEBUG, "os_version=%08x",
3577		   WPA_GET_BE32(config->os_version));
3578	return 0;
3579}
3580
3581
3582static int wpa_config_process_wps_vendor_ext_m1(
3583	const struct global_parse_data *data,
3584	struct wpa_config *config, int line, const char *pos)
3585{
3586	struct wpabuf *tmp;
3587	int len = os_strlen(pos) / 2;
3588	u8 *p;
3589
3590	if (!len) {
3591		wpa_printf(MSG_ERROR, "Line %d: "
3592			   "invalid wps_vendor_ext_m1", line);
3593		return -1;
3594	}
3595
3596	tmp = wpabuf_alloc(len);
3597	if (tmp) {
3598		p = wpabuf_put(tmp, len);
3599
3600		if (hexstr2bin(pos, p, len)) {
3601			wpa_printf(MSG_ERROR, "Line %d: "
3602				   "invalid wps_vendor_ext_m1", line);
3603			wpabuf_free(tmp);
3604			return -1;
3605		}
3606
3607		wpabuf_free(config->wps_vendor_ext_m1);
3608		config->wps_vendor_ext_m1 = tmp;
3609	} else {
3610		wpa_printf(MSG_ERROR, "Can not allocate "
3611			   "memory for wps_vendor_ext_m1");
3612		return -1;
3613	}
3614
3615	return 0;
3616}
3617
3618#endif /* CONFIG_WPS */
3619
3620#ifdef CONFIG_P2P
3621static int wpa_config_process_sec_device_type(
3622	const struct global_parse_data *data,
3623	struct wpa_config *config, int line, const char *pos)
3624{
3625	int idx;
3626
3627	if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
3628		wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
3629			   "items", line);
3630		return -1;
3631	}
3632
3633	idx = config->num_sec_device_types;
3634
3635	if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
3636		return -1;
3637
3638	config->num_sec_device_types++;
3639	return 0;
3640}
3641
3642
3643static int wpa_config_process_p2p_pref_chan(
3644	const struct global_parse_data *data,
3645	struct wpa_config *config, int line, const char *pos)
3646{
3647	struct p2p_channel *pref = NULL, *n;
3648	unsigned int num = 0;
3649	const char *pos2;
3650	u8 op_class, chan;
3651
3652	/* format: class:chan,class:chan,... */
3653
3654	while (*pos) {
3655		op_class = atoi(pos);
3656		pos2 = os_strchr(pos, ':');
3657		if (pos2 == NULL)
3658			goto fail;
3659		pos2++;
3660		chan = atoi(pos2);
3661
3662		n = os_realloc_array(pref, num + 1,
3663				     sizeof(struct p2p_channel));
3664		if (n == NULL)
3665			goto fail;
3666		pref = n;
3667		pref[num].op_class = op_class;
3668		pref[num].chan = chan;
3669		num++;
3670
3671		pos = os_strchr(pos2, ',');
3672		if (pos == NULL)
3673			break;
3674		pos++;
3675	}
3676
3677	os_free(config->p2p_pref_chan);
3678	config->p2p_pref_chan = pref;
3679	config->num_p2p_pref_chan = num;
3680	wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
3681		    (u8 *) config->p2p_pref_chan,
3682		    config->num_p2p_pref_chan * sizeof(struct p2p_channel));
3683
3684	return 0;
3685
3686fail:
3687	os_free(pref);
3688	wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
3689	return -1;
3690}
3691
3692
3693static int wpa_config_process_p2p_no_go_freq(
3694	const struct global_parse_data *data,
3695	struct wpa_config *config, int line, const char *pos)
3696{
3697	int ret;
3698
3699	ret = freq_range_list_parse(&config->p2p_no_go_freq, pos);
3700	if (ret < 0) {
3701		wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_no_go_freq", line);
3702		return -1;
3703	}
3704
3705	wpa_printf(MSG_DEBUG, "P2P: p2p_no_go_freq with %u items",
3706		   config->p2p_no_go_freq.num);
3707
3708	return 0;
3709}
3710
3711#endif /* CONFIG_P2P */
3712
3713
3714static int wpa_config_process_hessid(
3715	const struct global_parse_data *data,
3716	struct wpa_config *config, int line, const char *pos)
3717{
3718	if (hwaddr_aton2(pos, config->hessid) < 0) {
3719		wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
3720			   line, pos);
3721		return -1;
3722	}
3723
3724	return 0;
3725}
3726
3727
3728static int wpa_config_process_sae_groups(
3729	const struct global_parse_data *data,
3730	struct wpa_config *config, int line, const char *pos)
3731{
3732	int *groups = wpa_config_parse_int_array(pos);
3733	if (groups == NULL) {
3734		wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
3735			   line, pos);
3736		return -1;
3737	}
3738
3739	os_free(config->sae_groups);
3740	config->sae_groups = groups;
3741
3742	return 0;
3743}
3744
3745
3746static int wpa_config_process_ap_vendor_elements(
3747	const struct global_parse_data *data,
3748	struct wpa_config *config, int line, const char *pos)
3749{
3750	struct wpabuf *tmp;
3751	int len = os_strlen(pos) / 2;
3752	u8 *p;
3753
3754	if (!len) {
3755		wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
3756			   line);
3757		return -1;
3758	}
3759
3760	tmp = wpabuf_alloc(len);
3761	if (tmp) {
3762		p = wpabuf_put(tmp, len);
3763
3764		if (hexstr2bin(pos, p, len)) {
3765			wpa_printf(MSG_ERROR, "Line %d: invalid "
3766				   "ap_vendor_elements", line);
3767			wpabuf_free(tmp);
3768			return -1;
3769		}
3770
3771		wpabuf_free(config->ap_vendor_elements);
3772		config->ap_vendor_elements = tmp;
3773	} else {
3774		wpa_printf(MSG_ERROR, "Cannot allocate memory for "
3775			   "ap_vendor_elements");
3776		return -1;
3777	}
3778
3779	return 0;
3780}
3781
3782
3783#ifdef CONFIG_CTRL_IFACE
3784static int wpa_config_process_no_ctrl_interface(
3785	const struct global_parse_data *data,
3786	struct wpa_config *config, int line, const char *pos)
3787{
3788	wpa_printf(MSG_DEBUG, "no_ctrl_interface -> ctrl_interface=NULL");
3789	os_free(config->ctrl_interface);
3790	config->ctrl_interface = NULL;
3791	return 0;
3792}
3793#endif /* CONFIG_CTRL_IFACE */
3794
3795
3796#ifdef OFFSET
3797#undef OFFSET
3798#endif /* OFFSET */
3799/* OFFSET: Get offset of a variable within the wpa_config structure */
3800#define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
3801
3802#define FUNC(f) #f, wpa_config_process_ ## f, OFFSET(f), NULL, NULL
3803#define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL
3804#define _INT(f) #f, wpa_global_config_parse_int, OFFSET(f)
3805#define INT(f) _INT(f), NULL, NULL
3806#define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
3807#define _STR(f) #f, wpa_global_config_parse_str, OFFSET(f)
3808#define STR(f) _STR(f), NULL, NULL
3809#define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
3810#define BIN(f) #f, wpa_global_config_parse_bin, OFFSET(f), NULL, NULL
3811#define IPV4(f) #f, wpa_global_config_parse_ipv4, OFFSET(f), NULL, NULL
3812
3813static const struct global_parse_data global_fields[] = {
3814#ifdef CONFIG_CTRL_IFACE
3815	{ STR(ctrl_interface), 0 },
3816	{ FUNC_NO_VAR(no_ctrl_interface), 0 },
3817	{ STR(ctrl_interface_group), 0 } /* deprecated */,
3818#endif /* CONFIG_CTRL_IFACE */
3819#ifdef CONFIG_MACSEC
3820	{ INT_RANGE(eapol_version, 1, 3), 0 },
3821#else /* CONFIG_MACSEC */
3822	{ INT_RANGE(eapol_version, 1, 2), 0 },
3823#endif /* CONFIG_MACSEC */
3824	{ INT(ap_scan), 0 },
3825	{ FUNC(bgscan), 0 },
3826	{ INT(disable_scan_offload), 0 },
3827	{ INT(fast_reauth), 0 },
3828	{ STR(opensc_engine_path), 0 },
3829	{ STR(pkcs11_engine_path), 0 },
3830	{ STR(pkcs11_module_path), 0 },
3831	{ STR(pcsc_reader), 0 },
3832	{ STR(pcsc_pin), 0 },
3833	{ INT(external_sim), 0 },
3834	{ STR(driver_param), 0 },
3835	{ INT(dot11RSNAConfigPMKLifetime), 0 },
3836	{ INT(dot11RSNAConfigPMKReauthThreshold), 0 },
3837	{ INT(dot11RSNAConfigSATimeout), 0 },
3838#ifndef CONFIG_NO_CONFIG_WRITE
3839	{ INT(update_config), 0 },
3840#endif /* CONFIG_NO_CONFIG_WRITE */
3841	{ FUNC_NO_VAR(load_dynamic_eap), 0 },
3842#ifdef CONFIG_WPS
3843	{ FUNC(uuid), CFG_CHANGED_UUID },
3844	{ STR_RANGE(device_name, 0, 32), CFG_CHANGED_DEVICE_NAME },
3845	{ STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
3846	{ STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
3847	{ STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
3848	{ STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
3849	{ FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
3850	{ FUNC(os_version), CFG_CHANGED_OS_VERSION },
3851	{ STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
3852	{ INT_RANGE(wps_cred_processing, 0, 2), 0 },
3853	{ FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
3854#endif /* CONFIG_WPS */
3855#ifdef CONFIG_P2P
3856	{ FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
3857	{ INT(p2p_listen_reg_class), 0 },
3858	{ INT(p2p_listen_channel), 0 },
3859	{ INT(p2p_oper_reg_class), CFG_CHANGED_P2P_OPER_CHANNEL },
3860	{ INT(p2p_oper_channel), CFG_CHANGED_P2P_OPER_CHANNEL },
3861	{ INT_RANGE(p2p_go_intent, 0, 15), 0 },
3862	{ STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
3863	{ INT_RANGE(persistent_reconnect, 0, 1), 0 },
3864	{ INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
3865	{ INT(p2p_group_idle), 0 },
3866	{ INT_RANGE(p2p_passphrase_len, 8, 63),
3867	  CFG_CHANGED_P2P_PASSPHRASE_LEN },
3868	{ FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
3869	{ FUNC(p2p_no_go_freq), CFG_CHANGED_P2P_PREF_CHAN },
3870	{ INT_RANGE(p2p_add_cli_chan, 0, 1), 0 },
3871	{ INT_RANGE(p2p_optimize_listen_chan, 0, 1), 0 },
3872	{ INT(p2p_go_ht40), 0 },
3873	{ INT(p2p_go_vht), 0 },
3874	{ INT(p2p_disabled), 0 },
3875	{ INT(p2p_no_group_iface), 0 },
3876	{ INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
3877	{ IPV4(ip_addr_go), 0 },
3878	{ IPV4(ip_addr_mask), 0 },
3879	{ IPV4(ip_addr_start), 0 },
3880	{ IPV4(ip_addr_end), 0 },
3881#endif /* CONFIG_P2P */
3882	{ FUNC(country), CFG_CHANGED_COUNTRY },
3883	{ INT(bss_max_count), 0 },
3884	{ INT(bss_expiration_age), 0 },
3885	{ INT(bss_expiration_scan_count), 0 },
3886	{ INT_RANGE(filter_ssids, 0, 1), 0 },
3887	{ INT_RANGE(filter_rssi, -100, 0), 0 },
3888	{ INT(max_num_sta), 0 },
3889	{ INT_RANGE(disassoc_low_ack, 0, 1), 0 },
3890#ifdef CONFIG_HS20
3891	{ INT_RANGE(hs20, 0, 1), 0 },
3892#endif /* CONFIG_HS20 */
3893	{ INT_RANGE(interworking, 0, 1), 0 },
3894	{ FUNC(hessid), 0 },
3895	{ INT_RANGE(access_network_type, 0, 15), 0 },
3896	{ INT_RANGE(pbc_in_m1, 0, 1), 0 },
3897	{ STR(autoscan), 0 },
3898	{ INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
3899	  CFG_CHANGED_NFC_PASSWORD_TOKEN },
3900	{ BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
3901	{ BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
3902	{ BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
3903	{ STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
3904	{ INT(p2p_go_max_inactivity), 0 },
3905	{ INT_RANGE(auto_interworking, 0, 1), 0 },
3906	{ INT(okc), 0 },
3907	{ INT(pmf), 0 },
3908	{ FUNC(sae_groups), 0 },
3909	{ INT(dtim_period), 0 },
3910	{ INT(beacon_int), 0 },
3911	{ FUNC(ap_vendor_elements), 0 },
3912	{ INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
3913	{ FUNC(freq_list), 0 },
3914	{ INT(scan_cur_freq), 0 },
3915	{ INT(sched_scan_interval), 0 },
3916	{ INT(tdls_external_control), 0},
3917	{ STR(osu_dir), 0 },
3918	{ STR(wowlan_triggers), 0 },
3919	{ INT(p2p_search_delay), 0},
3920};
3921
3922#undef FUNC
3923#undef _INT
3924#undef INT
3925#undef INT_RANGE
3926#undef _STR
3927#undef STR
3928#undef STR_RANGE
3929#undef BIN
3930#undef IPV4
3931#define NUM_GLOBAL_FIELDS ARRAY_SIZE(global_fields)
3932
3933
3934int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
3935{
3936	size_t i;
3937	int ret = 0;
3938
3939	for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
3940		const struct global_parse_data *field = &global_fields[i];
3941		size_t flen = os_strlen(field->name);
3942		if (os_strncmp(pos, field->name, flen) != 0 ||
3943		    pos[flen] != '=')
3944			continue;
3945
3946		if (field->parser(field, config, line, pos + flen + 1)) {
3947			wpa_printf(MSG_ERROR, "Line %d: failed to "
3948				   "parse '%s'.", line, pos);
3949			ret = -1;
3950		}
3951		if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
3952			config->wps_nfc_pw_from_config = 1;
3953		config->changed_parameters |= field->changed_flag;
3954		break;
3955	}
3956	if (i == NUM_GLOBAL_FIELDS) {
3957#ifdef CONFIG_AP
3958		if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
3959			char *tmp = os_strchr(pos, '=');
3960			if (tmp == NULL) {
3961				if (line < 0)
3962					return -1;
3963				wpa_printf(MSG_ERROR, "Line %d: invalid line "
3964					   "'%s'", line, pos);
3965				return -1;
3966			}
3967			*tmp++ = '\0';
3968			if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
3969						  tmp)) {
3970				wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
3971					   "AC item", line);
3972				return -1;
3973			}
3974		}
3975#endif /* CONFIG_AP */
3976		if (line < 0)
3977			return -1;
3978		wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
3979			   line, pos);
3980		ret = -1;
3981	}
3982
3983	return ret;
3984}
3985