xref: /freebsd/contrib/wpa/wpa_supplicant/config.c (revision 85732ac8)
1 /*
2  * WPA Supplicant / Configuration parser and common functions
3  * Copyright (c) 2003-2018, 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 "common/ieee802_1x_defs.h"
15 #include "crypto/sha1.h"
16 #include "rsn_supp/wpa.h"
17 #include "eap_peer/eap.h"
18 #include "p2p/p2p.h"
19 #include "fst/fst.h"
20 #include "config.h"
21 
22 
23 #if !defined(CONFIG_CTRL_IFACE) && defined(CONFIG_NO_CONFIG_WRITE)
24 #define NO_CONFIG_WRITE
25 #endif
26 
27 /*
28  * Structure for network configuration parsing. This data is used to implement
29  * a generic parser for each network block variable. The table of configuration
30  * variables is defined below in this file (ssid_fields[]).
31  */
32 struct parse_data {
33 	/* Configuration variable name */
34 	char *name;
35 
36 	/* Parser function for this variable. The parser functions return 0 or 1
37 	 * to indicate success. Value 0 indicates that the parameter value may
38 	 * have changed while value 1 means that the value did not change.
39 	 * Error cases (failure to parse the string) are indicated by returning
40 	 * -1. */
41 	int (*parser)(const struct parse_data *data, struct wpa_ssid *ssid,
42 		      int line, const char *value);
43 
44 #ifndef NO_CONFIG_WRITE
45 	/* Writer function (i.e., to get the variable in text format from
46 	 * internal presentation). */
47 	char * (*writer)(const struct parse_data *data, struct wpa_ssid *ssid);
48 #endif /* NO_CONFIG_WRITE */
49 
50 	/* Variable specific parameters for the parser. */
51 	void *param1, *param2, *param3, *param4;
52 
53 	/* 0 = this variable can be included in debug output and ctrl_iface
54 	 * 1 = this variable contains key/private data and it must not be
55 	 *     included in debug output unless explicitly requested. In
56 	 *     addition, this variable will not be readable through the
57 	 *     ctrl_iface.
58 	 */
59 	int key_data;
60 };
61 
62 
63 static int wpa_config_parse_str(const struct parse_data *data,
64 				struct wpa_ssid *ssid,
65 				int line, const char *value)
66 {
67 	size_t res_len, *dst_len, prev_len;
68 	char **dst, *tmp;
69 
70 	if (os_strcmp(value, "NULL") == 0) {
71 		wpa_printf(MSG_DEBUG, "Unset configuration string '%s'",
72 			   data->name);
73 		tmp = NULL;
74 		res_len = 0;
75 		goto set;
76 	}
77 
78 	tmp = wpa_config_parse_string(value, &res_len);
79 	if (tmp == NULL) {
80 		wpa_printf(MSG_ERROR, "Line %d: failed to parse %s '%s'.",
81 			   line, data->name,
82 			   data->key_data ? "[KEY DATA REMOVED]" : value);
83 		return -1;
84 	}
85 
86 	if (data->key_data) {
87 		wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
88 				      (u8 *) tmp, res_len);
89 	} else {
90 		wpa_hexdump_ascii(MSG_MSGDUMP, data->name,
91 				  (u8 *) tmp, res_len);
92 	}
93 
94 	if (data->param3 && res_len < (size_t) data->param3) {
95 		wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
96 			   "min_len=%ld)", line, data->name,
97 			   (unsigned long) res_len, (long) data->param3);
98 		os_free(tmp);
99 		return -1;
100 	}
101 
102 	if (data->param4 && res_len > (size_t) data->param4) {
103 		wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
104 			   "max_len=%ld)", line, data->name,
105 			   (unsigned long) res_len, (long) data->param4);
106 		os_free(tmp);
107 		return -1;
108 	}
109 
110 set:
111 	dst = (char **) (((u8 *) ssid) + (long) data->param1);
112 	dst_len = (size_t *) (((u8 *) ssid) + (long) data->param2);
113 
114 	if (data->param2)
115 		prev_len = *dst_len;
116 	else if (*dst)
117 		prev_len = os_strlen(*dst);
118 	else
119 		prev_len = 0;
120 	if ((*dst == NULL && tmp == NULL) ||
121 	    (*dst && tmp && prev_len == res_len &&
122 	     os_memcmp(*dst, tmp, res_len) == 0)) {
123 		/* No change to the previously configured value */
124 		os_free(tmp);
125 		return 1;
126 	}
127 
128 	os_free(*dst);
129 	*dst = tmp;
130 	if (data->param2)
131 		*dst_len = res_len;
132 
133 	return 0;
134 }
135 
136 
137 #ifndef NO_CONFIG_WRITE
138 static char * wpa_config_write_string_ascii(const u8 *value, size_t len)
139 {
140 	char *buf;
141 
142 	buf = os_malloc(len + 3);
143 	if (buf == NULL)
144 		return NULL;
145 	buf[0] = '"';
146 	os_memcpy(buf + 1, value, len);
147 	buf[len + 1] = '"';
148 	buf[len + 2] = '\0';
149 
150 	return buf;
151 }
152 
153 
154 static char * wpa_config_write_string_hex(const u8 *value, size_t len)
155 {
156 	char *buf;
157 
158 	buf = os_zalloc(2 * len + 1);
159 	if (buf == NULL)
160 		return NULL;
161 	wpa_snprintf_hex(buf, 2 * len + 1, value, len);
162 
163 	return buf;
164 }
165 
166 
167 static char * wpa_config_write_string(const u8 *value, size_t len)
168 {
169 	if (value == NULL)
170 		return NULL;
171 
172 	if (is_hex(value, len))
173 		return wpa_config_write_string_hex(value, len);
174 	else
175 		return wpa_config_write_string_ascii(value, len);
176 }
177 
178 
179 static char * wpa_config_write_str(const struct parse_data *data,
180 				   struct wpa_ssid *ssid)
181 {
182 	size_t len;
183 	char **src;
184 
185 	src = (char **) (((u8 *) ssid) + (long) data->param1);
186 	if (*src == NULL)
187 		return NULL;
188 
189 	if (data->param2)
190 		len = *((size_t *) (((u8 *) ssid) + (long) data->param2));
191 	else
192 		len = os_strlen(*src);
193 
194 	return wpa_config_write_string((const u8 *) *src, len);
195 }
196 #endif /* NO_CONFIG_WRITE */
197 
198 
199 static int wpa_config_parse_int(const struct parse_data *data,
200 				struct wpa_ssid *ssid,
201 				int line, const char *value)
202 {
203 	int val, *dst;
204 	char *end;
205 
206 	dst = (int *) (((u8 *) ssid) + (long) data->param1);
207 	val = strtol(value, &end, 0);
208 	if (*end) {
209 		wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
210 			   line, value);
211 		return -1;
212 	}
213 
214 	if (*dst == val)
215 		return 1;
216 	*dst = val;
217 	wpa_printf(MSG_MSGDUMP, "%s=%d (0x%x)", data->name, *dst, *dst);
218 
219 	if (data->param3 && *dst < (long) data->param3) {
220 		wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
221 			   "min_value=%ld)", line, data->name, *dst,
222 			   (long) data->param3);
223 		*dst = (long) data->param3;
224 		return -1;
225 	}
226 
227 	if (data->param4 && *dst > (long) data->param4) {
228 		wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
229 			   "max_value=%ld)", line, data->name, *dst,
230 			   (long) data->param4);
231 		*dst = (long) data->param4;
232 		return -1;
233 	}
234 
235 	return 0;
236 }
237 
238 
239 #ifndef NO_CONFIG_WRITE
240 static char * wpa_config_write_int(const struct parse_data *data,
241 				   struct wpa_ssid *ssid)
242 {
243 	int *src, res;
244 	char *value;
245 
246 	src = (int *) (((u8 *) ssid) + (long) data->param1);
247 
248 	value = os_malloc(20);
249 	if (value == NULL)
250 		return NULL;
251 	res = os_snprintf(value, 20, "%d", *src);
252 	if (os_snprintf_error(20, res)) {
253 		os_free(value);
254 		return NULL;
255 	}
256 	value[20 - 1] = '\0';
257 	return value;
258 }
259 #endif /* NO_CONFIG_WRITE */
260 
261 
262 static int wpa_config_parse_addr_list(const struct parse_data *data,
263 				      int line, const char *value,
264 				      u8 **list, size_t *num, char *name,
265 				      u8 abort_on_error, u8 masked)
266 {
267 	const char *pos;
268 	u8 *buf, *n, addr[2 * ETH_ALEN];
269 	size_t count;
270 
271 	buf = NULL;
272 	count = 0;
273 
274 	pos = value;
275 	while (pos && *pos) {
276 		while (*pos == ' ')
277 			pos++;
278 
279 		if (hwaddr_masked_aton(pos, addr, &addr[ETH_ALEN], masked)) {
280 			if (abort_on_error || count == 0) {
281 				wpa_printf(MSG_ERROR,
282 					   "Line %d: Invalid %s address '%s'",
283 					   line, name, value);
284 				os_free(buf);
285 				return -1;
286 			}
287 			/* continue anyway since this could have been from a
288 			 * truncated configuration file line */
289 			wpa_printf(MSG_INFO,
290 				   "Line %d: Ignore likely truncated %s address '%s'",
291 				   line, name, pos);
292 		} else {
293 			n = os_realloc_array(buf, count + 1, 2 * ETH_ALEN);
294 			if (n == NULL) {
295 				os_free(buf);
296 				return -1;
297 			}
298 			buf = n;
299 			os_memmove(buf + 2 * ETH_ALEN, buf,
300 				   count * 2 * ETH_ALEN);
301 			os_memcpy(buf, addr, 2 * ETH_ALEN);
302 			count++;
303 			wpa_printf(MSG_MSGDUMP,
304 				   "%s: addr=" MACSTR " mask=" MACSTR,
305 				   name, MAC2STR(addr),
306 				   MAC2STR(&addr[ETH_ALEN]));
307 		}
308 
309 		pos = os_strchr(pos, ' ');
310 	}
311 
312 	os_free(*list);
313 	*list = buf;
314 	*num = count;
315 
316 	return 0;
317 }
318 
319 
320 #ifndef NO_CONFIG_WRITE
321 static char * wpa_config_write_addr_list(const struct parse_data *data,
322 					 const u8 *list, size_t num, char *name)
323 {
324 	char *value, *end, *pos;
325 	int res;
326 	size_t i;
327 
328 	if (list == NULL || num == 0)
329 		return NULL;
330 
331 	value = os_malloc(2 * 20 * num);
332 	if (value == NULL)
333 		return NULL;
334 	pos = value;
335 	end = value + 2 * 20 * num;
336 
337 	for (i = num; i > 0; i--) {
338 		const u8 *a = list + (i - 1) * 2 * ETH_ALEN;
339 		const u8 *m = a + ETH_ALEN;
340 
341 		if (i < num)
342 			*pos++ = ' ';
343 		res = hwaddr_mask_txt(pos, end - pos, a, m);
344 		if (res < 0) {
345 			os_free(value);
346 			return NULL;
347 		}
348 		pos += res;
349 	}
350 
351 	return value;
352 }
353 #endif /* NO_CONFIG_WRITE */
354 
355 static int wpa_config_parse_bssid(const struct parse_data *data,
356 				  struct wpa_ssid *ssid, int line,
357 				  const char *value)
358 {
359 	if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
360 	    os_strcmp(value, "any") == 0) {
361 		ssid->bssid_set = 0;
362 		wpa_printf(MSG_MSGDUMP, "BSSID any");
363 		return 0;
364 	}
365 	if (hwaddr_aton(value, ssid->bssid)) {
366 		wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID '%s'.",
367 			   line, value);
368 		return -1;
369 	}
370 	ssid->bssid_set = 1;
371 	wpa_hexdump(MSG_MSGDUMP, "BSSID", ssid->bssid, ETH_ALEN);
372 	return 0;
373 }
374 
375 
376 #ifndef NO_CONFIG_WRITE
377 static char * wpa_config_write_bssid(const struct parse_data *data,
378 				     struct wpa_ssid *ssid)
379 {
380 	char *value;
381 	int res;
382 
383 	if (!ssid->bssid_set)
384 		return NULL;
385 
386 	value = os_malloc(20);
387 	if (value == NULL)
388 		return NULL;
389 	res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->bssid));
390 	if (os_snprintf_error(20, res)) {
391 		os_free(value);
392 		return NULL;
393 	}
394 	value[20 - 1] = '\0';
395 	return value;
396 }
397 #endif /* NO_CONFIG_WRITE */
398 
399 
400 static int wpa_config_parse_bssid_hint(const struct parse_data *data,
401 				       struct wpa_ssid *ssid, int line,
402 				       const char *value)
403 {
404 	if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
405 	    os_strcmp(value, "any") == 0) {
406 		ssid->bssid_hint_set = 0;
407 		wpa_printf(MSG_MSGDUMP, "BSSID hint any");
408 		return 0;
409 	}
410 	if (hwaddr_aton(value, ssid->bssid_hint)) {
411 		wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID hint '%s'.",
412 			   line, value);
413 		return -1;
414 	}
415 	ssid->bssid_hint_set = 1;
416 	wpa_hexdump(MSG_MSGDUMP, "BSSID hint", ssid->bssid_hint, ETH_ALEN);
417 	return 0;
418 }
419 
420 
421 #ifndef NO_CONFIG_WRITE
422 static char * wpa_config_write_bssid_hint(const struct parse_data *data,
423 					  struct wpa_ssid *ssid)
424 {
425 	char *value;
426 	int res;
427 
428 	if (!ssid->bssid_hint_set)
429 		return NULL;
430 
431 	value = os_malloc(20);
432 	if (!value)
433 		return NULL;
434 	res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->bssid_hint));
435 	if (os_snprintf_error(20, res)) {
436 		os_free(value);
437 		return NULL;
438 	}
439 	return value;
440 }
441 #endif /* NO_CONFIG_WRITE */
442 
443 
444 static int wpa_config_parse_bssid_blacklist(const struct parse_data *data,
445 					    struct wpa_ssid *ssid, int line,
446 					    const char *value)
447 {
448 	return wpa_config_parse_addr_list(data, line, value,
449 					  &ssid->bssid_blacklist,
450 					  &ssid->num_bssid_blacklist,
451 					  "bssid_blacklist", 1, 1);
452 }
453 
454 
455 #ifndef NO_CONFIG_WRITE
456 static char * wpa_config_write_bssid_blacklist(const struct parse_data *data,
457 					       struct wpa_ssid *ssid)
458 {
459 	return wpa_config_write_addr_list(data, ssid->bssid_blacklist,
460 					  ssid->num_bssid_blacklist,
461 					  "bssid_blacklist");
462 }
463 #endif /* NO_CONFIG_WRITE */
464 
465 
466 static int wpa_config_parse_bssid_whitelist(const struct parse_data *data,
467 					    struct wpa_ssid *ssid, int line,
468 					    const char *value)
469 {
470 	return wpa_config_parse_addr_list(data, line, value,
471 					  &ssid->bssid_whitelist,
472 					  &ssid->num_bssid_whitelist,
473 					  "bssid_whitelist", 1, 1);
474 }
475 
476 
477 #ifndef NO_CONFIG_WRITE
478 static char * wpa_config_write_bssid_whitelist(const struct parse_data *data,
479 					       struct wpa_ssid *ssid)
480 {
481 	return wpa_config_write_addr_list(data, ssid->bssid_whitelist,
482 					  ssid->num_bssid_whitelist,
483 					  "bssid_whitelist");
484 }
485 #endif /* NO_CONFIG_WRITE */
486 
487 
488 static int wpa_config_parse_psk(const struct parse_data *data,
489 				struct wpa_ssid *ssid, int line,
490 				const char *value)
491 {
492 #ifdef CONFIG_EXT_PASSWORD
493 	if (os_strncmp(value, "ext:", 4) == 0) {
494 		str_clear_free(ssid->passphrase);
495 		ssid->passphrase = NULL;
496 		ssid->psk_set = 0;
497 		os_free(ssid->ext_psk);
498 		ssid->ext_psk = os_strdup(value + 4);
499 		if (ssid->ext_psk == NULL)
500 			return -1;
501 		wpa_printf(MSG_DEBUG, "PSK: External password '%s'",
502 			   ssid->ext_psk);
503 		return 0;
504 	}
505 #endif /* CONFIG_EXT_PASSWORD */
506 
507 	if (*value == '"') {
508 #ifndef CONFIG_NO_PBKDF2
509 		const char *pos;
510 		size_t len;
511 
512 		value++;
513 		pos = os_strrchr(value, '"');
514 		if (pos)
515 			len = pos - value;
516 		else
517 			len = os_strlen(value);
518 		if (len < 8 || len > 63) {
519 			wpa_printf(MSG_ERROR, "Line %d: Invalid passphrase "
520 				   "length %lu (expected: 8..63) '%s'.",
521 				   line, (unsigned long) len, value);
522 			return -1;
523 		}
524 		wpa_hexdump_ascii_key(MSG_MSGDUMP, "PSK (ASCII passphrase)",
525 				      (u8 *) value, len);
526 		if (has_ctrl_char((u8 *) value, len)) {
527 			wpa_printf(MSG_ERROR,
528 				   "Line %d: Invalid passphrase character",
529 				   line);
530 			return -1;
531 		}
532 		if (ssid->passphrase && os_strlen(ssid->passphrase) == len &&
533 		    os_memcmp(ssid->passphrase, value, len) == 0) {
534 			/* No change to the previously configured value */
535 			return 1;
536 		}
537 		ssid->psk_set = 0;
538 		str_clear_free(ssid->passphrase);
539 		ssid->passphrase = dup_binstr(value, len);
540 		if (ssid->passphrase == NULL)
541 			return -1;
542 		return 0;
543 #else /* CONFIG_NO_PBKDF2 */
544 		wpa_printf(MSG_ERROR, "Line %d: ASCII passphrase not "
545 			   "supported.", line);
546 		return -1;
547 #endif /* CONFIG_NO_PBKDF2 */
548 	}
549 
550 	if (hexstr2bin(value, ssid->psk, PMK_LEN) ||
551 	    value[PMK_LEN * 2] != '\0') {
552 		wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.",
553 			   line, value);
554 		return -1;
555 	}
556 
557 	str_clear_free(ssid->passphrase);
558 	ssid->passphrase = NULL;
559 
560 	ssid->psk_set = 1;
561 	wpa_hexdump_key(MSG_MSGDUMP, "PSK", ssid->psk, PMK_LEN);
562 	return 0;
563 }
564 
565 
566 #ifndef NO_CONFIG_WRITE
567 static char * wpa_config_write_psk(const struct parse_data *data,
568 				   struct wpa_ssid *ssid)
569 {
570 #ifdef CONFIG_EXT_PASSWORD
571 	if (ssid->ext_psk) {
572 		size_t len = 4 + os_strlen(ssid->ext_psk) + 1;
573 		char *buf = os_malloc(len);
574 		int res;
575 
576 		if (buf == NULL)
577 			return NULL;
578 		res = os_snprintf(buf, len, "ext:%s", ssid->ext_psk);
579 		if (os_snprintf_error(len, res)) {
580 			os_free(buf);
581 			buf = NULL;
582 		}
583 		return buf;
584 	}
585 #endif /* CONFIG_EXT_PASSWORD */
586 
587 	if (ssid->passphrase)
588 		return wpa_config_write_string_ascii(
589 			(const u8 *) ssid->passphrase,
590 			os_strlen(ssid->passphrase));
591 
592 	if (ssid->psk_set)
593 		return wpa_config_write_string_hex(ssid->psk, PMK_LEN);
594 
595 	return NULL;
596 }
597 #endif /* NO_CONFIG_WRITE */
598 
599 
600 static int wpa_config_parse_proto(const struct parse_data *data,
601 				  struct wpa_ssid *ssid, int line,
602 				  const char *value)
603 {
604 	int val = 0, last, errors = 0;
605 	char *start, *end, *buf;
606 
607 	buf = os_strdup(value);
608 	if (buf == NULL)
609 		return -1;
610 	start = buf;
611 
612 	while (*start != '\0') {
613 		while (*start == ' ' || *start == '\t')
614 			start++;
615 		if (*start == '\0')
616 			break;
617 		end = start;
618 		while (*end != ' ' && *end != '\t' && *end != '\0')
619 			end++;
620 		last = *end == '\0';
621 		*end = '\0';
622 		if (os_strcmp(start, "WPA") == 0)
623 			val |= WPA_PROTO_WPA;
624 		else if (os_strcmp(start, "RSN") == 0 ||
625 			 os_strcmp(start, "WPA2") == 0)
626 			val |= WPA_PROTO_RSN;
627 		else if (os_strcmp(start, "OSEN") == 0)
628 			val |= WPA_PROTO_OSEN;
629 		else {
630 			wpa_printf(MSG_ERROR, "Line %d: invalid proto '%s'",
631 				   line, start);
632 			errors++;
633 		}
634 
635 		if (last)
636 			break;
637 		start = end + 1;
638 	}
639 	os_free(buf);
640 
641 	if (val == 0) {
642 		wpa_printf(MSG_ERROR,
643 			   "Line %d: no proto values configured.", line);
644 		errors++;
645 	}
646 
647 	if (!errors && ssid->proto == val)
648 		return 1;
649 	wpa_printf(MSG_MSGDUMP, "proto: 0x%x", val);
650 	ssid->proto = val;
651 	return errors ? -1 : 0;
652 }
653 
654 
655 #ifndef NO_CONFIG_WRITE
656 static char * wpa_config_write_proto(const struct parse_data *data,
657 				     struct wpa_ssid *ssid)
658 {
659 	int ret;
660 	char *buf, *pos, *end;
661 
662 	pos = buf = os_zalloc(20);
663 	if (buf == NULL)
664 		return NULL;
665 	end = buf + 20;
666 
667 	if (ssid->proto & WPA_PROTO_WPA) {
668 		ret = os_snprintf(pos, end - pos, "%sWPA",
669 				  pos == buf ? "" : " ");
670 		if (os_snprintf_error(end - pos, ret))
671 			return buf;
672 		pos += ret;
673 	}
674 
675 	if (ssid->proto & WPA_PROTO_RSN) {
676 		ret = os_snprintf(pos, end - pos, "%sRSN",
677 				  pos == buf ? "" : " ");
678 		if (os_snprintf_error(end - pos, ret))
679 			return buf;
680 		pos += ret;
681 	}
682 
683 	if (ssid->proto & WPA_PROTO_OSEN) {
684 		ret = os_snprintf(pos, end - pos, "%sOSEN",
685 				  pos == buf ? "" : " ");
686 		if (os_snprintf_error(end - pos, ret))
687 			return buf;
688 		pos += ret;
689 	}
690 
691 	if (pos == buf) {
692 		os_free(buf);
693 		buf = NULL;
694 	}
695 
696 	return buf;
697 }
698 #endif /* NO_CONFIG_WRITE */
699 
700 
701 static int wpa_config_parse_key_mgmt(const struct parse_data *data,
702 				     struct wpa_ssid *ssid, int line,
703 				     const char *value)
704 {
705 	int val = 0, last, errors = 0;
706 	char *start, *end, *buf;
707 
708 	buf = os_strdup(value);
709 	if (buf == NULL)
710 		return -1;
711 	start = buf;
712 
713 	while (*start != '\0') {
714 		while (*start == ' ' || *start == '\t')
715 			start++;
716 		if (*start == '\0')
717 			break;
718 		end = start;
719 		while (*end != ' ' && *end != '\t' && *end != '\0')
720 			end++;
721 		last = *end == '\0';
722 		*end = '\0';
723 		if (os_strcmp(start, "WPA-PSK") == 0)
724 			val |= WPA_KEY_MGMT_PSK;
725 		else if (os_strcmp(start, "WPA-EAP") == 0)
726 			val |= WPA_KEY_MGMT_IEEE8021X;
727 		else if (os_strcmp(start, "IEEE8021X") == 0)
728 			val |= WPA_KEY_MGMT_IEEE8021X_NO_WPA;
729 		else if (os_strcmp(start, "NONE") == 0)
730 			val |= WPA_KEY_MGMT_NONE;
731 		else if (os_strcmp(start, "WPA-NONE") == 0)
732 			val |= WPA_KEY_MGMT_WPA_NONE;
733 #ifdef CONFIG_IEEE80211R
734 		else if (os_strcmp(start, "FT-PSK") == 0)
735 			val |= WPA_KEY_MGMT_FT_PSK;
736 		else if (os_strcmp(start, "FT-EAP") == 0)
737 			val |= WPA_KEY_MGMT_FT_IEEE8021X;
738 #ifdef CONFIG_SHA384
739 		else if (os_strcmp(start, "FT-EAP-SHA384") == 0)
740 			val |= WPA_KEY_MGMT_FT_IEEE8021X_SHA384;
741 #endif /* CONFIG_SHA384 */
742 #endif /* CONFIG_IEEE80211R */
743 #ifdef CONFIG_IEEE80211W
744 		else if (os_strcmp(start, "WPA-PSK-SHA256") == 0)
745 			val |= WPA_KEY_MGMT_PSK_SHA256;
746 		else if (os_strcmp(start, "WPA-EAP-SHA256") == 0)
747 			val |= WPA_KEY_MGMT_IEEE8021X_SHA256;
748 #endif /* CONFIG_IEEE80211W */
749 #ifdef CONFIG_WPS
750 		else if (os_strcmp(start, "WPS") == 0)
751 			val |= WPA_KEY_MGMT_WPS;
752 #endif /* CONFIG_WPS */
753 #ifdef CONFIG_SAE
754 		else if (os_strcmp(start, "SAE") == 0)
755 			val |= WPA_KEY_MGMT_SAE;
756 		else if (os_strcmp(start, "FT-SAE") == 0)
757 			val |= WPA_KEY_MGMT_FT_SAE;
758 #endif /* CONFIG_SAE */
759 #ifdef CONFIG_HS20
760 		else if (os_strcmp(start, "OSEN") == 0)
761 			val |= WPA_KEY_MGMT_OSEN;
762 #endif /* CONFIG_HS20 */
763 #ifdef CONFIG_SUITEB
764 		else if (os_strcmp(start, "WPA-EAP-SUITE-B") == 0)
765 			val |= WPA_KEY_MGMT_IEEE8021X_SUITE_B;
766 #endif /* CONFIG_SUITEB */
767 #ifdef CONFIG_SUITEB192
768 		else if (os_strcmp(start, "WPA-EAP-SUITE-B-192") == 0)
769 			val |= WPA_KEY_MGMT_IEEE8021X_SUITE_B_192;
770 #endif /* CONFIG_SUITEB192 */
771 #ifdef CONFIG_FILS
772 		else if (os_strcmp(start, "FILS-SHA256") == 0)
773 			val |= WPA_KEY_MGMT_FILS_SHA256;
774 		else if (os_strcmp(start, "FILS-SHA384") == 0)
775 			val |= WPA_KEY_MGMT_FILS_SHA384;
776 #ifdef CONFIG_IEEE80211R
777 		else if (os_strcmp(start, "FT-FILS-SHA256") == 0)
778 			val |= WPA_KEY_MGMT_FT_FILS_SHA256;
779 		else if (os_strcmp(start, "FT-FILS-SHA384") == 0)
780 			val |= WPA_KEY_MGMT_FT_FILS_SHA384;
781 #endif /* CONFIG_IEEE80211R */
782 #endif /* CONFIG_FILS */
783 #ifdef CONFIG_OWE
784 		else if (os_strcmp(start, "OWE") == 0)
785 			val |= WPA_KEY_MGMT_OWE;
786 #endif /* CONFIG_OWE */
787 #ifdef CONFIG_DPP
788 		else if (os_strcmp(start, "DPP") == 0)
789 			val |= WPA_KEY_MGMT_DPP;
790 #endif /* CONFIG_DPP */
791 		else {
792 			wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
793 				   line, start);
794 			errors++;
795 		}
796 
797 		if (last)
798 			break;
799 		start = end + 1;
800 	}
801 	os_free(buf);
802 
803 	if (val == 0) {
804 		wpa_printf(MSG_ERROR,
805 			   "Line %d: no key_mgmt values configured.", line);
806 		errors++;
807 	}
808 
809 	if (!errors && ssid->key_mgmt == val)
810 		return 1;
811 	wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val);
812 	ssid->key_mgmt = val;
813 	return errors ? -1 : 0;
814 }
815 
816 
817 #ifndef NO_CONFIG_WRITE
818 static char * wpa_config_write_key_mgmt(const struct parse_data *data,
819 					struct wpa_ssid *ssid)
820 {
821 	char *buf, *pos, *end;
822 	int ret;
823 
824 	pos = buf = os_zalloc(100);
825 	if (buf == NULL)
826 		return NULL;
827 	end = buf + 100;
828 
829 	if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
830 		ret = os_snprintf(pos, end - pos, "%sWPA-PSK",
831 				  pos == buf ? "" : " ");
832 		if (os_snprintf_error(end - pos, ret)) {
833 			end[-1] = '\0';
834 			return buf;
835 		}
836 		pos += ret;
837 	}
838 
839 	if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
840 		ret = os_snprintf(pos, end - pos, "%sWPA-EAP",
841 				  pos == buf ? "" : " ");
842 		if (os_snprintf_error(end - pos, ret)) {
843 			end[-1] = '\0';
844 			return buf;
845 		}
846 		pos += ret;
847 	}
848 
849 	if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
850 		ret = os_snprintf(pos, end - pos, "%sIEEE8021X",
851 				  pos == buf ? "" : " ");
852 		if (os_snprintf_error(end - pos, ret)) {
853 			end[-1] = '\0';
854 			return buf;
855 		}
856 		pos += ret;
857 	}
858 
859 	if (ssid->key_mgmt & WPA_KEY_MGMT_NONE) {
860 		ret = os_snprintf(pos, end - pos, "%sNONE",
861 				  pos == buf ? "" : " ");
862 		if (os_snprintf_error(end - pos, ret)) {
863 			end[-1] = '\0';
864 			return buf;
865 		}
866 		pos += ret;
867 	}
868 
869 	if (ssid->key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
870 		ret = os_snprintf(pos, end - pos, "%sWPA-NONE",
871 				  pos == buf ? "" : " ");
872 		if (os_snprintf_error(end - pos, ret)) {
873 			end[-1] = '\0';
874 			return buf;
875 		}
876 		pos += ret;
877 	}
878 
879 #ifdef CONFIG_IEEE80211R
880 	if (ssid->key_mgmt & WPA_KEY_MGMT_FT_PSK) {
881 		ret = os_snprintf(pos, end - pos, "%sFT-PSK",
882 				  pos == buf ? "" : " ");
883 		if (os_snprintf_error(end - pos, ret)) {
884 			end[-1] = '\0';
885 			return buf;
886 		}
887 		pos += ret;
888 	}
889 
890 	if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
891 		ret = os_snprintf(pos, end - pos, "%sFT-EAP",
892 				  pos == buf ? "" : " ");
893 		if (os_snprintf_error(end - pos, ret)) {
894 			end[-1] = '\0';
895 			return buf;
896 		}
897 		pos += ret;
898 	}
899 
900 #ifdef CONFIG_SHA384
901 	if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X_SHA384) {
902 		ret = os_snprintf(pos, end - pos, "%sFT-EAP-SHA384",
903 				  pos == buf ? "" : " ");
904 		if (os_snprintf_error(end - pos, ret)) {
905 			end[-1] = '\0';
906 			return buf;
907 		}
908 		pos += ret;
909 	}
910 #endif /* CONFIG_SHA384 */
911 #endif /* CONFIG_IEEE80211R */
912 
913 #ifdef CONFIG_IEEE80211W
914 	if (ssid->key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
915 		ret = os_snprintf(pos, end - pos, "%sWPA-PSK-SHA256",
916 				  pos == buf ? "" : " ");
917 		if (os_snprintf_error(end - pos, ret)) {
918 			end[-1] = '\0';
919 			return buf;
920 		}
921 		pos += ret;
922 	}
923 
924 	if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
925 		ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SHA256",
926 				  pos == buf ? "" : " ");
927 		if (os_snprintf_error(end - pos, ret)) {
928 			end[-1] = '\0';
929 			return buf;
930 		}
931 		pos += ret;
932 	}
933 #endif /* CONFIG_IEEE80211W */
934 
935 #ifdef CONFIG_WPS
936 	if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
937 		ret = os_snprintf(pos, end - pos, "%sWPS",
938 				  pos == buf ? "" : " ");
939 		if (os_snprintf_error(end - pos, ret)) {
940 			end[-1] = '\0';
941 			return buf;
942 		}
943 		pos += ret;
944 	}
945 #endif /* CONFIG_WPS */
946 
947 #ifdef CONFIG_SAE
948 	if (ssid->key_mgmt & WPA_KEY_MGMT_SAE) {
949 		ret = os_snprintf(pos, end - pos, "%sSAE",
950 				  pos == buf ? "" : " ");
951 		if (os_snprintf_error(end - pos, ret)) {
952 			end[-1] = '\0';
953 			return buf;
954 		}
955 		pos += ret;
956 	}
957 
958 	if (ssid->key_mgmt & WPA_KEY_MGMT_FT_SAE) {
959 		ret = os_snprintf(pos, end - pos, "%sFT-SAE",
960 				  pos == buf ? "" : " ");
961 		if (os_snprintf_error(end - pos, ret)) {
962 			end[-1] = '\0';
963 			return buf;
964 		}
965 		pos += ret;
966 	}
967 #endif /* CONFIG_SAE */
968 
969 #ifdef CONFIG_HS20
970 	if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN) {
971 		ret = os_snprintf(pos, end - pos, "%sOSEN",
972 				  pos == buf ? "" : " ");
973 		if (os_snprintf_error(end - pos, ret)) {
974 			end[-1] = '\0';
975 			return buf;
976 		}
977 		pos += ret;
978 	}
979 #endif /* CONFIG_HS20 */
980 
981 #ifdef CONFIG_SUITEB
982 	if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
983 		ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SUITE-B",
984 				  pos == buf ? "" : " ");
985 		if (os_snprintf_error(end - pos, ret)) {
986 			end[-1] = '\0';
987 			return buf;
988 		}
989 		pos += ret;
990 	}
991 #endif /* CONFIG_SUITEB */
992 
993 #ifdef CONFIG_SUITEB192
994 	if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
995 		ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SUITE-B-192",
996 				  pos == buf ? "" : " ");
997 		if (os_snprintf_error(end - pos, ret)) {
998 			end[-1] = '\0';
999 			return buf;
1000 		}
1001 		pos += ret;
1002 	}
1003 #endif /* CONFIG_SUITEB192 */
1004 
1005 #ifdef CONFIG_FILS
1006 	if (ssid->key_mgmt & WPA_KEY_MGMT_FILS_SHA256) {
1007 		ret = os_snprintf(pos, end - pos, "%sFILS-SHA256",
1008 				  pos == buf ? "" : " ");
1009 		if (os_snprintf_error(end - pos, ret)) {
1010 			end[-1] = '\0';
1011 			return buf;
1012 		}
1013 		pos += ret;
1014 	}
1015 	if (ssid->key_mgmt & WPA_KEY_MGMT_FILS_SHA384) {
1016 		ret = os_snprintf(pos, end - pos, "%sFILS-SHA384",
1017 				  pos == buf ? "" : " ");
1018 		if (os_snprintf_error(end - pos, ret)) {
1019 			end[-1] = '\0';
1020 			return buf;
1021 		}
1022 		pos += ret;
1023 	}
1024 #ifdef CONFIG_IEEE80211R
1025 	if (ssid->key_mgmt & WPA_KEY_MGMT_FT_FILS_SHA256) {
1026 		ret = os_snprintf(pos, end - pos, "%sFT-FILS-SHA256",
1027 				  pos == buf ? "" : " ");
1028 		if (os_snprintf_error(end - pos, ret)) {
1029 			end[-1] = '\0';
1030 			return buf;
1031 		}
1032 		pos += ret;
1033 	}
1034 	if (ssid->key_mgmt & WPA_KEY_MGMT_FT_FILS_SHA384) {
1035 		ret = os_snprintf(pos, end - pos, "%sFT-FILS-SHA384",
1036 				  pos == buf ? "" : " ");
1037 		if (os_snprintf_error(end - pos, ret)) {
1038 			end[-1] = '\0';
1039 			return buf;
1040 		}
1041 		pos += ret;
1042 	}
1043 #endif /* CONFIG_IEEE80211R */
1044 #endif /* CONFIG_FILS */
1045 
1046 	if (pos == buf) {
1047 		os_free(buf);
1048 		buf = NULL;
1049 	}
1050 
1051 	return buf;
1052 }
1053 #endif /* NO_CONFIG_WRITE */
1054 
1055 
1056 static int wpa_config_parse_cipher(int line, const char *value)
1057 {
1058 #ifdef CONFIG_NO_WPA
1059 	return -1;
1060 #else /* CONFIG_NO_WPA */
1061 	int val = wpa_parse_cipher(value);
1062 	if (val < 0) {
1063 		wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
1064 			   line, value);
1065 		return -1;
1066 	}
1067 	if (val == 0) {
1068 		wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
1069 			   line);
1070 		return -1;
1071 	}
1072 	return val;
1073 #endif /* CONFIG_NO_WPA */
1074 }
1075 
1076 
1077 #ifndef NO_CONFIG_WRITE
1078 static char * wpa_config_write_cipher(int cipher)
1079 {
1080 #ifdef CONFIG_NO_WPA
1081 	return NULL;
1082 #else /* CONFIG_NO_WPA */
1083 	char *buf = os_zalloc(50);
1084 	if (buf == NULL)
1085 		return NULL;
1086 
1087 	if (wpa_write_ciphers(buf, buf + 50, cipher, " ") < 0) {
1088 		os_free(buf);
1089 		return NULL;
1090 	}
1091 
1092 	return buf;
1093 #endif /* CONFIG_NO_WPA */
1094 }
1095 #endif /* NO_CONFIG_WRITE */
1096 
1097 
1098 static int wpa_config_parse_pairwise(const struct parse_data *data,
1099 				     struct wpa_ssid *ssid, int line,
1100 				     const char *value)
1101 {
1102 	int val;
1103 	val = wpa_config_parse_cipher(line, value);
1104 	if (val == -1)
1105 		return -1;
1106 	if (val & ~WPA_ALLOWED_PAIRWISE_CIPHERS) {
1107 		wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
1108 			   "(0x%x).", line, val);
1109 		return -1;
1110 	}
1111 
1112 	if (ssid->pairwise_cipher == val)
1113 		return 1;
1114 	wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
1115 	ssid->pairwise_cipher = val;
1116 	return 0;
1117 }
1118 
1119 
1120 #ifndef NO_CONFIG_WRITE
1121 static char * wpa_config_write_pairwise(const struct parse_data *data,
1122 					struct wpa_ssid *ssid)
1123 {
1124 	return wpa_config_write_cipher(ssid->pairwise_cipher);
1125 }
1126 #endif /* NO_CONFIG_WRITE */
1127 
1128 
1129 static int wpa_config_parse_group(const struct parse_data *data,
1130 				  struct wpa_ssid *ssid, int line,
1131 				  const char *value)
1132 {
1133 	int val;
1134 	val = wpa_config_parse_cipher(line, value);
1135 	if (val == -1)
1136 		return -1;
1137 
1138 	/*
1139 	 * Backwards compatibility - filter out WEP ciphers that were previously
1140 	 * allowed.
1141 	 */
1142 	val &= ~(WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40);
1143 
1144 	if (val & ~WPA_ALLOWED_GROUP_CIPHERS) {
1145 		wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
1146 			   "(0x%x).", line, val);
1147 		return -1;
1148 	}
1149 
1150 	if (ssid->group_cipher == val)
1151 		return 1;
1152 	wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
1153 	ssid->group_cipher = val;
1154 	return 0;
1155 }
1156 
1157 
1158 #ifndef NO_CONFIG_WRITE
1159 static char * wpa_config_write_group(const struct parse_data *data,
1160 				     struct wpa_ssid *ssid)
1161 {
1162 	return wpa_config_write_cipher(ssid->group_cipher);
1163 }
1164 #endif /* NO_CONFIG_WRITE */
1165 
1166 
1167 static int wpa_config_parse_group_mgmt(const struct parse_data *data,
1168 				       struct wpa_ssid *ssid, int line,
1169 				       const char *value)
1170 {
1171 	int val;
1172 
1173 	val = wpa_config_parse_cipher(line, value);
1174 	if (val == -1)
1175 		return -1;
1176 
1177 	if (val & ~WPA_ALLOWED_GROUP_MGMT_CIPHERS) {
1178 		wpa_printf(MSG_ERROR,
1179 			   "Line %d: not allowed group management cipher (0x%x).",
1180 			   line, val);
1181 		return -1;
1182 	}
1183 
1184 	if (ssid->group_mgmt_cipher == val)
1185 		return 1;
1186 	wpa_printf(MSG_MSGDUMP, "group_mgmt: 0x%x", val);
1187 	ssid->group_mgmt_cipher = val;
1188 	return 0;
1189 }
1190 
1191 
1192 #ifndef NO_CONFIG_WRITE
1193 static char * wpa_config_write_group_mgmt(const struct parse_data *data,
1194 					  struct wpa_ssid *ssid)
1195 {
1196 	return wpa_config_write_cipher(ssid->group_mgmt_cipher);
1197 }
1198 #endif /* NO_CONFIG_WRITE */
1199 
1200 
1201 static int wpa_config_parse_auth_alg(const struct parse_data *data,
1202 				     struct wpa_ssid *ssid, int line,
1203 				     const char *value)
1204 {
1205 	int val = 0, last, errors = 0;
1206 	char *start, *end, *buf;
1207 
1208 	buf = os_strdup(value);
1209 	if (buf == NULL)
1210 		return -1;
1211 	start = buf;
1212 
1213 	while (*start != '\0') {
1214 		while (*start == ' ' || *start == '\t')
1215 			start++;
1216 		if (*start == '\0')
1217 			break;
1218 		end = start;
1219 		while (*end != ' ' && *end != '\t' && *end != '\0')
1220 			end++;
1221 		last = *end == '\0';
1222 		*end = '\0';
1223 		if (os_strcmp(start, "OPEN") == 0)
1224 			val |= WPA_AUTH_ALG_OPEN;
1225 		else if (os_strcmp(start, "SHARED") == 0)
1226 			val |= WPA_AUTH_ALG_SHARED;
1227 		else if (os_strcmp(start, "LEAP") == 0)
1228 			val |= WPA_AUTH_ALG_LEAP;
1229 		else {
1230 			wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
1231 				   line, start);
1232 			errors++;
1233 		}
1234 
1235 		if (last)
1236 			break;
1237 		start = end + 1;
1238 	}
1239 	os_free(buf);
1240 
1241 	if (val == 0) {
1242 		wpa_printf(MSG_ERROR,
1243 			   "Line %d: no auth_alg values configured.", line);
1244 		errors++;
1245 	}
1246 
1247 	if (!errors && ssid->auth_alg == val)
1248 		return 1;
1249 	wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
1250 	ssid->auth_alg = val;
1251 	return errors ? -1 : 0;
1252 }
1253 
1254 
1255 #ifndef NO_CONFIG_WRITE
1256 static char * wpa_config_write_auth_alg(const struct parse_data *data,
1257 					struct wpa_ssid *ssid)
1258 {
1259 	char *buf, *pos, *end;
1260 	int ret;
1261 
1262 	pos = buf = os_zalloc(30);
1263 	if (buf == NULL)
1264 		return NULL;
1265 	end = buf + 30;
1266 
1267 	if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) {
1268 		ret = os_snprintf(pos, end - pos, "%sOPEN",
1269 				  pos == buf ? "" : " ");
1270 		if (os_snprintf_error(end - pos, ret)) {
1271 			end[-1] = '\0';
1272 			return buf;
1273 		}
1274 		pos += ret;
1275 	}
1276 
1277 	if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) {
1278 		ret = os_snprintf(pos, end - pos, "%sSHARED",
1279 				  pos == buf ? "" : " ");
1280 		if (os_snprintf_error(end - pos, ret)) {
1281 			end[-1] = '\0';
1282 			return buf;
1283 		}
1284 		pos += ret;
1285 	}
1286 
1287 	if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) {
1288 		ret = os_snprintf(pos, end - pos, "%sLEAP",
1289 				  pos == buf ? "" : " ");
1290 		if (os_snprintf_error(end - pos, ret)) {
1291 			end[-1] = '\0';
1292 			return buf;
1293 		}
1294 		pos += ret;
1295 	}
1296 
1297 	if (pos == buf) {
1298 		os_free(buf);
1299 		buf = NULL;
1300 	}
1301 
1302 	return buf;
1303 }
1304 #endif /* NO_CONFIG_WRITE */
1305 
1306 
1307 static int * wpa_config_parse_int_array(const char *value)
1308 {
1309 	int *freqs;
1310 	size_t used, len;
1311 	const char *pos;
1312 
1313 	used = 0;
1314 	len = 10;
1315 	freqs = os_calloc(len + 1, sizeof(int));
1316 	if (freqs == NULL)
1317 		return NULL;
1318 
1319 	pos = value;
1320 	while (pos) {
1321 		while (*pos == ' ')
1322 			pos++;
1323 		if (used == len) {
1324 			int *n;
1325 			size_t i;
1326 			n = os_realloc_array(freqs, len * 2 + 1, sizeof(int));
1327 			if (n == NULL) {
1328 				os_free(freqs);
1329 				return NULL;
1330 			}
1331 			for (i = len; i <= len * 2; i++)
1332 				n[i] = 0;
1333 			freqs = n;
1334 			len *= 2;
1335 		}
1336 
1337 		freqs[used] = atoi(pos);
1338 		if (freqs[used] == 0)
1339 			break;
1340 		used++;
1341 		pos = os_strchr(pos + 1, ' ');
1342 	}
1343 
1344 	return freqs;
1345 }
1346 
1347 
1348 static int wpa_config_parse_scan_freq(const struct parse_data *data,
1349 				      struct wpa_ssid *ssid, int line,
1350 				      const char *value)
1351 {
1352 	int *freqs;
1353 
1354 	freqs = wpa_config_parse_int_array(value);
1355 	if (freqs == NULL)
1356 		return -1;
1357 	if (freqs[0] == 0) {
1358 		os_free(freqs);
1359 		freqs = NULL;
1360 	}
1361 	os_free(ssid->scan_freq);
1362 	ssid->scan_freq = freqs;
1363 
1364 	return 0;
1365 }
1366 
1367 
1368 static int wpa_config_parse_freq_list(const struct parse_data *data,
1369 				      struct wpa_ssid *ssid, int line,
1370 				      const char *value)
1371 {
1372 	int *freqs;
1373 
1374 	freqs = wpa_config_parse_int_array(value);
1375 	if (freqs == NULL)
1376 		return -1;
1377 	if (freqs[0] == 0) {
1378 		os_free(freqs);
1379 		freqs = NULL;
1380 	}
1381 	os_free(ssid->freq_list);
1382 	ssid->freq_list = freqs;
1383 
1384 	return 0;
1385 }
1386 
1387 
1388 #ifndef NO_CONFIG_WRITE
1389 static char * wpa_config_write_freqs(const struct parse_data *data,
1390 				     const int *freqs)
1391 {
1392 	char *buf, *pos, *end;
1393 	int i, ret;
1394 	size_t count;
1395 
1396 	if (freqs == NULL)
1397 		return NULL;
1398 
1399 	count = 0;
1400 	for (i = 0; freqs[i]; i++)
1401 		count++;
1402 
1403 	pos = buf = os_zalloc(10 * count + 1);
1404 	if (buf == NULL)
1405 		return NULL;
1406 	end = buf + 10 * count + 1;
1407 
1408 	for (i = 0; freqs[i]; i++) {
1409 		ret = os_snprintf(pos, end - pos, "%s%u",
1410 				  i == 0 ? "" : " ", freqs[i]);
1411 		if (os_snprintf_error(end - pos, ret)) {
1412 			end[-1] = '\0';
1413 			return buf;
1414 		}
1415 		pos += ret;
1416 	}
1417 
1418 	return buf;
1419 }
1420 
1421 
1422 static char * wpa_config_write_scan_freq(const struct parse_data *data,
1423 					 struct wpa_ssid *ssid)
1424 {
1425 	return wpa_config_write_freqs(data, ssid->scan_freq);
1426 }
1427 
1428 
1429 static char * wpa_config_write_freq_list(const struct parse_data *data,
1430 					 struct wpa_ssid *ssid)
1431 {
1432 	return wpa_config_write_freqs(data, ssid->freq_list);
1433 }
1434 #endif /* NO_CONFIG_WRITE */
1435 
1436 
1437 #ifdef IEEE8021X_EAPOL
1438 static int wpa_config_parse_eap(const struct parse_data *data,
1439 				struct wpa_ssid *ssid, int line,
1440 				const char *value)
1441 {
1442 	int last, errors = 0;
1443 	char *start, *end, *buf;
1444 	struct eap_method_type *methods = NULL, *tmp;
1445 	size_t num_methods = 0;
1446 
1447 	buf = os_strdup(value);
1448 	if (buf == NULL)
1449 		return -1;
1450 	start = buf;
1451 
1452 	while (*start != '\0') {
1453 		while (*start == ' ' || *start == '\t')
1454 			start++;
1455 		if (*start == '\0')
1456 			break;
1457 		end = start;
1458 		while (*end != ' ' && *end != '\t' && *end != '\0')
1459 			end++;
1460 		last = *end == '\0';
1461 		*end = '\0';
1462 		tmp = methods;
1463 		methods = os_realloc_array(methods, num_methods + 1,
1464 					   sizeof(*methods));
1465 		if (methods == NULL) {
1466 			os_free(tmp);
1467 			os_free(buf);
1468 			return -1;
1469 		}
1470 		methods[num_methods].method = eap_peer_get_type(
1471 			start, &methods[num_methods].vendor);
1472 		if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1473 		    methods[num_methods].method == EAP_TYPE_NONE) {
1474 			wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
1475 				   "'%s'", line, start);
1476 			wpa_printf(MSG_ERROR, "You may need to add support for"
1477 				   " this EAP method during wpa_supplicant\n"
1478 				   "build time configuration.\n"
1479 				   "See README for more information.");
1480 			errors++;
1481 		} else if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1482 			   methods[num_methods].method == EAP_TYPE_LEAP)
1483 			ssid->leap++;
1484 		else
1485 			ssid->non_leap++;
1486 		num_methods++;
1487 		if (last)
1488 			break;
1489 		start = end + 1;
1490 	}
1491 	os_free(buf);
1492 
1493 	tmp = methods;
1494 	methods = os_realloc_array(methods, num_methods + 1, sizeof(*methods));
1495 	if (methods == NULL) {
1496 		os_free(tmp);
1497 		return -1;
1498 	}
1499 	methods[num_methods].vendor = EAP_VENDOR_IETF;
1500 	methods[num_methods].method = EAP_TYPE_NONE;
1501 	num_methods++;
1502 
1503 	if (!errors && ssid->eap.eap_methods) {
1504 		struct eap_method_type *prev_m;
1505 		size_t i, j, prev_methods, match = 0;
1506 
1507 		prev_m = ssid->eap.eap_methods;
1508 		for (i = 0; prev_m[i].vendor != EAP_VENDOR_IETF ||
1509 			     prev_m[i].method != EAP_TYPE_NONE; i++) {
1510 			/* Count the methods */
1511 		}
1512 		prev_methods = i + 1;
1513 
1514 		for (i = 0; prev_methods == num_methods && i < prev_methods;
1515 		     i++) {
1516 			for (j = 0; j < num_methods; j++) {
1517 				if (prev_m[i].vendor == methods[j].vendor &&
1518 				    prev_m[i].method == methods[j].method) {
1519 					match++;
1520 					break;
1521 				}
1522 			}
1523 		}
1524 		if (match == num_methods) {
1525 			os_free(methods);
1526 			return 1;
1527 		}
1528 	}
1529 	wpa_hexdump(MSG_MSGDUMP, "eap methods",
1530 		    (u8 *) methods, num_methods * sizeof(*methods));
1531 	os_free(ssid->eap.eap_methods);
1532 	ssid->eap.eap_methods = methods;
1533 	return errors ? -1 : 0;
1534 }
1535 
1536 
1537 #ifndef NO_CONFIG_WRITE
1538 static char * wpa_config_write_eap(const struct parse_data *data,
1539 				   struct wpa_ssid *ssid)
1540 {
1541 	int i, ret;
1542 	char *buf, *pos, *end;
1543 	const struct eap_method_type *eap_methods = ssid->eap.eap_methods;
1544 	const char *name;
1545 
1546 	if (eap_methods == NULL)
1547 		return NULL;
1548 
1549 	pos = buf = os_zalloc(100);
1550 	if (buf == NULL)
1551 		return NULL;
1552 	end = buf + 100;
1553 
1554 	for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF ||
1555 		     eap_methods[i].method != EAP_TYPE_NONE; i++) {
1556 		name = eap_get_name(eap_methods[i].vendor,
1557 				    eap_methods[i].method);
1558 		if (name) {
1559 			ret = os_snprintf(pos, end - pos, "%s%s",
1560 					  pos == buf ? "" : " ", name);
1561 			if (os_snprintf_error(end - pos, ret))
1562 				break;
1563 			pos += ret;
1564 		}
1565 	}
1566 
1567 	end[-1] = '\0';
1568 
1569 	return buf;
1570 }
1571 #endif /* NO_CONFIG_WRITE */
1572 
1573 
1574 static int wpa_config_parse_password(const struct parse_data *data,
1575 				     struct wpa_ssid *ssid, int line,
1576 				     const char *value)
1577 {
1578 	u8 *hash;
1579 
1580 	if (os_strcmp(value, "NULL") == 0) {
1581 		if (!ssid->eap.password)
1582 			return 1; /* Already unset */
1583 		wpa_printf(MSG_DEBUG, "Unset configuration string 'password'");
1584 		bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1585 		ssid->eap.password = NULL;
1586 		ssid->eap.password_len = 0;
1587 		return 0;
1588 	}
1589 
1590 #ifdef CONFIG_EXT_PASSWORD
1591 	if (os_strncmp(value, "ext:", 4) == 0) {
1592 		char *name = os_strdup(value + 4);
1593 		if (name == NULL)
1594 			return -1;
1595 		bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1596 		ssid->eap.password = (u8 *) name;
1597 		ssid->eap.password_len = os_strlen(name);
1598 		ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1599 		ssid->eap.flags |= EAP_CONFIG_FLAGS_EXT_PASSWORD;
1600 		return 0;
1601 	}
1602 #endif /* CONFIG_EXT_PASSWORD */
1603 
1604 	if (os_strncmp(value, "hash:", 5) != 0) {
1605 		char *tmp;
1606 		size_t res_len;
1607 
1608 		tmp = wpa_config_parse_string(value, &res_len);
1609 		if (tmp == NULL) {
1610 			wpa_printf(MSG_ERROR, "Line %d: failed to parse "
1611 				   "password.", line);
1612 			return -1;
1613 		}
1614 		wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
1615 				      (u8 *) tmp, res_len);
1616 
1617 		bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1618 		ssid->eap.password = (u8 *) tmp;
1619 		ssid->eap.password_len = res_len;
1620 		ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1621 		ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1622 
1623 		return 0;
1624 	}
1625 
1626 
1627 	/* NtPasswordHash: hash:<32 hex digits> */
1628 	if (os_strlen(value + 5) != 2 * 16) {
1629 		wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length "
1630 			   "(expected 32 hex digits)", line);
1631 		return -1;
1632 	}
1633 
1634 	hash = os_malloc(16);
1635 	if (hash == NULL)
1636 		return -1;
1637 
1638 	if (hexstr2bin(value + 5, hash, 16)) {
1639 		os_free(hash);
1640 		wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line);
1641 		return -1;
1642 	}
1643 
1644 	wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16);
1645 
1646 	if (ssid->eap.password && ssid->eap.password_len == 16 &&
1647 	    os_memcmp(ssid->eap.password, hash, 16) == 0 &&
1648 	    (ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1649 		bin_clear_free(hash, 16);
1650 		return 1;
1651 	}
1652 	bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1653 	ssid->eap.password = hash;
1654 	ssid->eap.password_len = 16;
1655 	ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1656 	ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1657 
1658 	return 0;
1659 }
1660 
1661 
1662 #ifndef NO_CONFIG_WRITE
1663 static char * wpa_config_write_password(const struct parse_data *data,
1664 					struct wpa_ssid *ssid)
1665 {
1666 	char *buf;
1667 
1668 	if (ssid->eap.password == NULL)
1669 		return NULL;
1670 
1671 #ifdef CONFIG_EXT_PASSWORD
1672 	if (ssid->eap.flags & EAP_CONFIG_FLAGS_EXT_PASSWORD) {
1673 		buf = os_zalloc(4 + ssid->eap.password_len + 1);
1674 		if (buf == NULL)
1675 			return NULL;
1676 		os_memcpy(buf, "ext:", 4);
1677 		os_memcpy(buf + 4, ssid->eap.password, ssid->eap.password_len);
1678 		return buf;
1679 	}
1680 #endif /* CONFIG_EXT_PASSWORD */
1681 
1682 	if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1683 		return wpa_config_write_string(
1684 			ssid->eap.password, ssid->eap.password_len);
1685 	}
1686 
1687 	buf = os_malloc(5 + 32 + 1);
1688 	if (buf == NULL)
1689 		return NULL;
1690 
1691 	os_memcpy(buf, "hash:", 5);
1692 	wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16);
1693 
1694 	return buf;
1695 }
1696 #endif /* NO_CONFIG_WRITE */
1697 #endif /* IEEE8021X_EAPOL */
1698 
1699 
1700 static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
1701 				    const char *value, int idx)
1702 {
1703 	char *buf, title[20];
1704 	int res;
1705 
1706 	buf = wpa_config_parse_string(value, len);
1707 	if (buf == NULL) {
1708 		wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
1709 			   line, idx, value);
1710 		return -1;
1711 	}
1712 	if (*len > MAX_WEP_KEY_LEN) {
1713 		wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
1714 			   line, idx, value);
1715 		os_free(buf);
1716 		return -1;
1717 	}
1718 	if (*len && *len != 5 && *len != 13 && *len != 16) {
1719 		wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key length %u - "
1720 			   "this network block will be ignored",
1721 			   line, (unsigned int) *len);
1722 	}
1723 	os_memcpy(key, buf, *len);
1724 	str_clear_free(buf);
1725 	res = os_snprintf(title, sizeof(title), "wep_key%d", idx);
1726 	if (!os_snprintf_error(sizeof(title), res))
1727 		wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
1728 	return 0;
1729 }
1730 
1731 
1732 static int wpa_config_parse_wep_key0(const struct parse_data *data,
1733 				     struct wpa_ssid *ssid, int line,
1734 				     const char *value)
1735 {
1736 	return wpa_config_parse_wep_key(ssid->wep_key[0],
1737 					&ssid->wep_key_len[0], line,
1738 					value, 0);
1739 }
1740 
1741 
1742 static int wpa_config_parse_wep_key1(const struct parse_data *data,
1743 				     struct wpa_ssid *ssid, int line,
1744 				     const char *value)
1745 {
1746 	return wpa_config_parse_wep_key(ssid->wep_key[1],
1747 					&ssid->wep_key_len[1], line,
1748 					value, 1);
1749 }
1750 
1751 
1752 static int wpa_config_parse_wep_key2(const struct parse_data *data,
1753 				     struct wpa_ssid *ssid, int line,
1754 				     const char *value)
1755 {
1756 	return wpa_config_parse_wep_key(ssid->wep_key[2],
1757 					&ssid->wep_key_len[2], line,
1758 					value, 2);
1759 }
1760 
1761 
1762 static int wpa_config_parse_wep_key3(const struct parse_data *data,
1763 				     struct wpa_ssid *ssid, int line,
1764 				     const char *value)
1765 {
1766 	return wpa_config_parse_wep_key(ssid->wep_key[3],
1767 					&ssid->wep_key_len[3], line,
1768 					value, 3);
1769 }
1770 
1771 
1772 #ifndef NO_CONFIG_WRITE
1773 static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx)
1774 {
1775 	if (ssid->wep_key_len[idx] == 0)
1776 		return NULL;
1777 	return wpa_config_write_string(ssid->wep_key[idx],
1778 				       ssid->wep_key_len[idx]);
1779 }
1780 
1781 
1782 static char * wpa_config_write_wep_key0(const struct parse_data *data,
1783 					struct wpa_ssid *ssid)
1784 {
1785 	return wpa_config_write_wep_key(ssid, 0);
1786 }
1787 
1788 
1789 static char * wpa_config_write_wep_key1(const struct parse_data *data,
1790 					struct wpa_ssid *ssid)
1791 {
1792 	return wpa_config_write_wep_key(ssid, 1);
1793 }
1794 
1795 
1796 static char * wpa_config_write_wep_key2(const struct parse_data *data,
1797 					struct wpa_ssid *ssid)
1798 {
1799 	return wpa_config_write_wep_key(ssid, 2);
1800 }
1801 
1802 
1803 static char * wpa_config_write_wep_key3(const struct parse_data *data,
1804 					struct wpa_ssid *ssid)
1805 {
1806 	return wpa_config_write_wep_key(ssid, 3);
1807 }
1808 #endif /* NO_CONFIG_WRITE */
1809 
1810 
1811 #ifdef CONFIG_P2P
1812 
1813 static int wpa_config_parse_go_p2p_dev_addr(const struct parse_data *data,
1814 					    struct wpa_ssid *ssid, int line,
1815 					    const char *value)
1816 {
1817 	if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
1818 	    os_strcmp(value, "any") == 0) {
1819 		os_memset(ssid->go_p2p_dev_addr, 0, ETH_ALEN);
1820 		wpa_printf(MSG_MSGDUMP, "GO P2P Device Address any");
1821 		return 0;
1822 	}
1823 	if (hwaddr_aton(value, ssid->go_p2p_dev_addr)) {
1824 		wpa_printf(MSG_ERROR, "Line %d: Invalid GO P2P Device Address '%s'.",
1825 			   line, value);
1826 		return -1;
1827 	}
1828 	ssid->bssid_set = 1;
1829 	wpa_printf(MSG_MSGDUMP, "GO P2P Device Address " MACSTR,
1830 		   MAC2STR(ssid->go_p2p_dev_addr));
1831 	return 0;
1832 }
1833 
1834 
1835 #ifndef NO_CONFIG_WRITE
1836 static char * wpa_config_write_go_p2p_dev_addr(const struct parse_data *data,
1837 					       struct wpa_ssid *ssid)
1838 {
1839 	char *value;
1840 	int res;
1841 
1842 	if (is_zero_ether_addr(ssid->go_p2p_dev_addr))
1843 		return NULL;
1844 
1845 	value = os_malloc(20);
1846 	if (value == NULL)
1847 		return NULL;
1848 	res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->go_p2p_dev_addr));
1849 	if (os_snprintf_error(20, res)) {
1850 		os_free(value);
1851 		return NULL;
1852 	}
1853 	value[20 - 1] = '\0';
1854 	return value;
1855 }
1856 #endif /* NO_CONFIG_WRITE */
1857 
1858 
1859 static int wpa_config_parse_p2p_client_list(const struct parse_data *data,
1860 					    struct wpa_ssid *ssid, int line,
1861 					    const char *value)
1862 {
1863 	return wpa_config_parse_addr_list(data, line, value,
1864 					  &ssid->p2p_client_list,
1865 					  &ssid->num_p2p_clients,
1866 					  "p2p_client_list", 0, 0);
1867 }
1868 
1869 
1870 #ifndef NO_CONFIG_WRITE
1871 static char * wpa_config_write_p2p_client_list(const struct parse_data *data,
1872 					       struct wpa_ssid *ssid)
1873 {
1874 	return wpa_config_write_addr_list(data, ssid->p2p_client_list,
1875 					  ssid->num_p2p_clients,
1876 					  "p2p_client_list");
1877 }
1878 #endif /* NO_CONFIG_WRITE */
1879 
1880 
1881 static int wpa_config_parse_psk_list(const struct parse_data *data,
1882 				     struct wpa_ssid *ssid, int line,
1883 				     const char *value)
1884 {
1885 	struct psk_list_entry *p;
1886 	const char *pos;
1887 
1888 	p = os_zalloc(sizeof(*p));
1889 	if (p == NULL)
1890 		return -1;
1891 
1892 	pos = value;
1893 	if (os_strncmp(pos, "P2P-", 4) == 0) {
1894 		p->p2p = 1;
1895 		pos += 4;
1896 	}
1897 
1898 	if (hwaddr_aton(pos, p->addr)) {
1899 		wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list address '%s'",
1900 			   line, pos);
1901 		os_free(p);
1902 		return -1;
1903 	}
1904 	pos += 17;
1905 	if (*pos != '-') {
1906 		wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list '%s'",
1907 			   line, pos);
1908 		os_free(p);
1909 		return -1;
1910 	}
1911 	pos++;
1912 
1913 	if (hexstr2bin(pos, p->psk, PMK_LEN) || pos[PMK_LEN * 2] != '\0') {
1914 		wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list PSK '%s'",
1915 			   line, pos);
1916 		os_free(p);
1917 		return -1;
1918 	}
1919 
1920 	dl_list_add(&ssid->psk_list, &p->list);
1921 
1922 	return 0;
1923 }
1924 
1925 
1926 #ifndef NO_CONFIG_WRITE
1927 static char * wpa_config_write_psk_list(const struct parse_data *data,
1928 					struct wpa_ssid *ssid)
1929 {
1930 	return NULL;
1931 }
1932 #endif /* NO_CONFIG_WRITE */
1933 
1934 #endif /* CONFIG_P2P */
1935 
1936 
1937 #ifdef CONFIG_MESH
1938 
1939 static int wpa_config_parse_mesh_basic_rates(const struct parse_data *data,
1940 					     struct wpa_ssid *ssid, int line,
1941 					     const char *value)
1942 {
1943 	int *rates = wpa_config_parse_int_array(value);
1944 
1945 	if (rates == NULL) {
1946 		wpa_printf(MSG_ERROR, "Line %d: Invalid mesh_basic_rates '%s'",
1947 			   line, value);
1948 		return -1;
1949 	}
1950 	if (rates[0] == 0) {
1951 		os_free(rates);
1952 		rates = NULL;
1953 	}
1954 
1955 	os_free(ssid->mesh_basic_rates);
1956 	ssid->mesh_basic_rates = rates;
1957 
1958 	return 0;
1959 }
1960 
1961 
1962 #ifndef NO_CONFIG_WRITE
1963 
1964 static char * wpa_config_write_mesh_basic_rates(const struct parse_data *data,
1965 						struct wpa_ssid *ssid)
1966 {
1967 	return wpa_config_write_freqs(data, ssid->mesh_basic_rates);
1968 }
1969 
1970 #endif /* NO_CONFIG_WRITE */
1971 
1972 #endif /* CONFIG_MESH */
1973 
1974 
1975 #ifdef CONFIG_MACSEC
1976 
1977 static int wpa_config_parse_mka_cak(const struct parse_data *data,
1978 				    struct wpa_ssid *ssid, int line,
1979 				    const char *value)
1980 {
1981 	if (hexstr2bin(value, ssid->mka_cak, MACSEC_CAK_LEN) ||
1982 	    value[MACSEC_CAK_LEN * 2] != '\0') {
1983 		wpa_printf(MSG_ERROR, "Line %d: Invalid MKA-CAK '%s'.",
1984 			   line, value);
1985 		return -1;
1986 	}
1987 
1988 	ssid->mka_psk_set |= MKA_PSK_SET_CAK;
1989 
1990 	wpa_hexdump_key(MSG_MSGDUMP, "MKA-CAK", ssid->mka_cak, MACSEC_CAK_LEN);
1991 	return 0;
1992 }
1993 
1994 
1995 static int wpa_config_parse_mka_ckn(const struct parse_data *data,
1996 				    struct wpa_ssid *ssid, int line,
1997 				    const char *value)
1998 {
1999 	if (hexstr2bin(value, ssid->mka_ckn, MACSEC_CKN_LEN) ||
2000 	    value[MACSEC_CKN_LEN * 2] != '\0') {
2001 		wpa_printf(MSG_ERROR, "Line %d: Invalid MKA-CKN '%s'.",
2002 			   line, value);
2003 		return -1;
2004 	}
2005 
2006 	ssid->mka_psk_set |= MKA_PSK_SET_CKN;
2007 
2008 	wpa_hexdump_key(MSG_MSGDUMP, "MKA-CKN", ssid->mka_ckn, MACSEC_CKN_LEN);
2009 	return 0;
2010 }
2011 
2012 
2013 #ifndef NO_CONFIG_WRITE
2014 
2015 static char * wpa_config_write_mka_cak(const struct parse_data *data,
2016 				       struct wpa_ssid *ssid)
2017 {
2018 	if (!(ssid->mka_psk_set & MKA_PSK_SET_CAK))
2019 		return NULL;
2020 
2021 	return wpa_config_write_string_hex(ssid->mka_cak, MACSEC_CAK_LEN);
2022 }
2023 
2024 
2025 static char * wpa_config_write_mka_ckn(const struct parse_data *data,
2026 				       struct wpa_ssid *ssid)
2027 {
2028 	if (!(ssid->mka_psk_set & MKA_PSK_SET_CKN))
2029 		return NULL;
2030 	return wpa_config_write_string_hex(ssid->mka_ckn, MACSEC_CKN_LEN);
2031 }
2032 
2033 #endif /* NO_CONFIG_WRITE */
2034 
2035 #endif /* CONFIG_MACSEC */
2036 
2037 
2038 static int wpa_config_parse_peerkey(const struct parse_data *data,
2039 				    struct wpa_ssid *ssid, int line,
2040 				    const char *value)
2041 {
2042 	wpa_printf(MSG_INFO, "NOTE: Obsolete peerkey parameter ignored");
2043 	return 0;
2044 }
2045 
2046 
2047 #ifndef NO_CONFIG_WRITE
2048 static char * wpa_config_write_peerkey(const struct parse_data *data,
2049 				       struct wpa_ssid *ssid)
2050 {
2051 	return NULL;
2052 }
2053 #endif /* NO_CONFIG_WRITE */
2054 
2055 
2056 /* Helper macros for network block parser */
2057 
2058 #ifdef OFFSET
2059 #undef OFFSET
2060 #endif /* OFFSET */
2061 /* OFFSET: Get offset of a variable within the wpa_ssid structure */
2062 #define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
2063 
2064 /* STR: Define a string variable for an ASCII string; f = field name */
2065 #ifdef NO_CONFIG_WRITE
2066 #define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
2067 #define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
2068 #else /* NO_CONFIG_WRITE */
2069 #define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
2070 #define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
2071 #endif /* NO_CONFIG_WRITE */
2072 #define STR(f) _STR(f), NULL, NULL, NULL, 0
2073 #define STRe(f) _STRe(f), NULL, NULL, NULL, 0
2074 #define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
2075 #define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
2076 
2077 /* STR_LEN: Define a string variable with a separate variable for storing the
2078  * data length. Unlike STR(), this can be used to store arbitrary binary data
2079  * (i.e., even nul termination character). */
2080 #define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
2081 #define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
2082 #define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
2083 #define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
2084 #define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
2085 
2086 /* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
2087  * explicitly specified. */
2088 #define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
2089 #define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
2090 #define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
2091 
2092 #ifdef NO_CONFIG_WRITE
2093 #define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
2094 #define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
2095 #else /* NO_CONFIG_WRITE */
2096 #define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
2097 	OFFSET(f), (void *) 0
2098 #define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
2099 	OFFSET(eap.f), (void *) 0
2100 #endif /* NO_CONFIG_WRITE */
2101 
2102 /* INT: Define an integer variable */
2103 #define INT(f) _INT(f), NULL, NULL, 0
2104 #define INTe(f) _INTe(f), NULL, NULL, 0
2105 
2106 /* INT_RANGE: Define an integer variable with allowed value range */
2107 #define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
2108 
2109 /* FUNC: Define a configuration variable that uses a custom function for
2110  * parsing and writing the value. */
2111 #ifdef NO_CONFIG_WRITE
2112 #define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
2113 #else /* NO_CONFIG_WRITE */
2114 #define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
2115 	NULL, NULL, NULL, NULL
2116 #endif /* NO_CONFIG_WRITE */
2117 #define FUNC(f) _FUNC(f), 0
2118 #define FUNC_KEY(f) _FUNC(f), 1
2119 
2120 /*
2121  * Table of network configuration variables. This table is used to parse each
2122  * network configuration variable, e.g., each line in wpa_supplicant.conf file
2123  * that is inside a network block.
2124  *
2125  * This table is generated using the helper macros defined above and with
2126  * generous help from the C pre-processor. The field name is stored as a string
2127  * into .name and for STR and INT types, the offset of the target buffer within
2128  * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
2129  * offset to the field containing the length of the configuration variable.
2130  * .param3 and .param4 can be used to mark the allowed range (length for STR
2131  * and value for INT).
2132  *
2133  * For each configuration line in wpa_supplicant.conf, the parser goes through
2134  * this table and select the entry that matches with the field name. The parser
2135  * function (.parser) is then called to parse the actual value of the field.
2136  *
2137  * This kind of mechanism makes it easy to add new configuration parameters,
2138  * since only one line needs to be added into this table and into the
2139  * struct wpa_ssid definition if the new variable is either a string or
2140  * integer. More complex types will need to use their own parser and writer
2141  * functions.
2142  */
2143 static const struct parse_data ssid_fields[] = {
2144 	{ STR_RANGE(ssid, 0, SSID_MAX_LEN) },
2145 	{ INT_RANGE(scan_ssid, 0, 1) },
2146 	{ FUNC(bssid) },
2147 	{ FUNC(bssid_hint) },
2148 	{ FUNC(bssid_blacklist) },
2149 	{ FUNC(bssid_whitelist) },
2150 	{ FUNC_KEY(psk) },
2151 	{ INT(mem_only_psk) },
2152 	{ STR_KEY(sae_password) },
2153 	{ STR(sae_password_id) },
2154 	{ FUNC(proto) },
2155 	{ FUNC(key_mgmt) },
2156 	{ INT(bg_scan_period) },
2157 	{ FUNC(pairwise) },
2158 	{ FUNC(group) },
2159 	{ FUNC(group_mgmt) },
2160 	{ FUNC(auth_alg) },
2161 	{ FUNC(scan_freq) },
2162 	{ FUNC(freq_list) },
2163 	{ INT_RANGE(ht, 0, 1) },
2164 	{ INT_RANGE(vht, 0, 1) },
2165 	{ INT_RANGE(ht40, -1, 1) },
2166 	{ INT_RANGE(max_oper_chwidth, VHT_CHANWIDTH_USE_HT,
2167 		    VHT_CHANWIDTH_80P80MHZ) },
2168 	{ INT(vht_center_freq1) },
2169 	{ INT(vht_center_freq2) },
2170 #ifdef IEEE8021X_EAPOL
2171 	{ FUNC(eap) },
2172 	{ STR_LENe(identity) },
2173 	{ STR_LENe(anonymous_identity) },
2174 	{ STR_LENe(imsi_identity) },
2175 	{ FUNC_KEY(password) },
2176 	{ STRe(ca_cert) },
2177 	{ STRe(ca_path) },
2178 	{ STRe(client_cert) },
2179 	{ STRe(private_key) },
2180 	{ STR_KEYe(private_key_passwd) },
2181 	{ STRe(dh_file) },
2182 	{ STRe(subject_match) },
2183 	{ STRe(altsubject_match) },
2184 	{ STRe(domain_suffix_match) },
2185 	{ STRe(domain_match) },
2186 	{ STRe(ca_cert2) },
2187 	{ STRe(ca_path2) },
2188 	{ STRe(client_cert2) },
2189 	{ STRe(private_key2) },
2190 	{ STR_KEYe(private_key2_passwd) },
2191 	{ STRe(dh_file2) },
2192 	{ STRe(subject_match2) },
2193 	{ STRe(altsubject_match2) },
2194 	{ STRe(domain_suffix_match2) },
2195 	{ STRe(domain_match2) },
2196 	{ STRe(phase1) },
2197 	{ STRe(phase2) },
2198 	{ STRe(pcsc) },
2199 	{ STR_KEYe(pin) },
2200 	{ STRe(engine_id) },
2201 	{ STRe(key_id) },
2202 	{ STRe(cert_id) },
2203 	{ STRe(ca_cert_id) },
2204 	{ STR_KEYe(pin2) },
2205 	{ STRe(engine2_id) },
2206 	{ STRe(key2_id) },
2207 	{ STRe(cert2_id) },
2208 	{ STRe(ca_cert2_id) },
2209 	{ INTe(engine) },
2210 	{ INTe(engine2) },
2211 	{ INT(eapol_flags) },
2212 	{ INTe(sim_num) },
2213 	{ STRe(openssl_ciphers) },
2214 	{ INTe(erp) },
2215 #endif /* IEEE8021X_EAPOL */
2216 	{ FUNC_KEY(wep_key0) },
2217 	{ FUNC_KEY(wep_key1) },
2218 	{ FUNC_KEY(wep_key2) },
2219 	{ FUNC_KEY(wep_key3) },
2220 	{ INT(wep_tx_keyidx) },
2221 	{ INT(priority) },
2222 #ifdef IEEE8021X_EAPOL
2223 	{ INT(eap_workaround) },
2224 	{ STRe(pac_file) },
2225 	{ INTe(fragment_size) },
2226 	{ INTe(ocsp) },
2227 #endif /* IEEE8021X_EAPOL */
2228 #ifdef CONFIG_MESH
2229 	{ INT_RANGE(mode, 0, 5) },
2230 	{ INT_RANGE(no_auto_peer, 0, 1) },
2231 	{ INT_RANGE(mesh_rssi_threshold, -255, 1) },
2232 #else /* CONFIG_MESH */
2233 	{ INT_RANGE(mode, 0, 4) },
2234 #endif /* CONFIG_MESH */
2235 	{ INT_RANGE(proactive_key_caching, 0, 1) },
2236 	{ INT_RANGE(disabled, 0, 2) },
2237 	{ STR(id_str) },
2238 #ifdef CONFIG_IEEE80211W
2239 	{ INT_RANGE(ieee80211w, 0, 2) },
2240 #endif /* CONFIG_IEEE80211W */
2241 	{ FUNC(peerkey) /* obsolete - removed */ },
2242 	{ INT_RANGE(mixed_cell, 0, 1) },
2243 	{ INT_RANGE(frequency, 0, 65000) },
2244 	{ INT_RANGE(fixed_freq, 0, 1) },
2245 #ifdef CONFIG_ACS
2246 	{ INT_RANGE(acs, 0, 1) },
2247 #endif /* CONFIG_ACS */
2248 #ifdef CONFIG_MESH
2249 	{ FUNC(mesh_basic_rates) },
2250 	{ INT(dot11MeshMaxRetries) },
2251 	{ INT(dot11MeshRetryTimeout) },
2252 	{ INT(dot11MeshConfirmTimeout) },
2253 	{ INT(dot11MeshHoldingTimeout) },
2254 #endif /* CONFIG_MESH */
2255 	{ INT(wpa_ptk_rekey) },
2256 	{ INT(group_rekey) },
2257 	{ STR(bgscan) },
2258 	{ INT_RANGE(ignore_broadcast_ssid, 0, 2) },
2259 #ifdef CONFIG_P2P
2260 	{ FUNC(go_p2p_dev_addr) },
2261 	{ FUNC(p2p_client_list) },
2262 	{ FUNC(psk_list) },
2263 #endif /* CONFIG_P2P */
2264 #ifdef CONFIG_HT_OVERRIDES
2265 	{ INT_RANGE(disable_ht, 0, 1) },
2266 	{ INT_RANGE(disable_ht40, -1, 1) },
2267 	{ INT_RANGE(disable_sgi, 0, 1) },
2268 	{ INT_RANGE(disable_ldpc, 0, 1) },
2269 	{ INT_RANGE(ht40_intolerant, 0, 1) },
2270 	{ INT_RANGE(disable_max_amsdu, -1, 1) },
2271 	{ INT_RANGE(ampdu_factor, -1, 3) },
2272 	{ INT_RANGE(ampdu_density, -1, 7) },
2273 	{ STR(ht_mcs) },
2274 #endif /* CONFIG_HT_OVERRIDES */
2275 #ifdef CONFIG_VHT_OVERRIDES
2276 	{ INT_RANGE(disable_vht, 0, 1) },
2277 	{ INT(vht_capa) },
2278 	{ INT(vht_capa_mask) },
2279 	{ INT_RANGE(vht_rx_mcs_nss_1, -1, 3) },
2280 	{ INT_RANGE(vht_rx_mcs_nss_2, -1, 3) },
2281 	{ INT_RANGE(vht_rx_mcs_nss_3, -1, 3) },
2282 	{ INT_RANGE(vht_rx_mcs_nss_4, -1, 3) },
2283 	{ INT_RANGE(vht_rx_mcs_nss_5, -1, 3) },
2284 	{ INT_RANGE(vht_rx_mcs_nss_6, -1, 3) },
2285 	{ INT_RANGE(vht_rx_mcs_nss_7, -1, 3) },
2286 	{ INT_RANGE(vht_rx_mcs_nss_8, -1, 3) },
2287 	{ INT_RANGE(vht_tx_mcs_nss_1, -1, 3) },
2288 	{ INT_RANGE(vht_tx_mcs_nss_2, -1, 3) },
2289 	{ INT_RANGE(vht_tx_mcs_nss_3, -1, 3) },
2290 	{ INT_RANGE(vht_tx_mcs_nss_4, -1, 3) },
2291 	{ INT_RANGE(vht_tx_mcs_nss_5, -1, 3) },
2292 	{ INT_RANGE(vht_tx_mcs_nss_6, -1, 3) },
2293 	{ INT_RANGE(vht_tx_mcs_nss_7, -1, 3) },
2294 	{ INT_RANGE(vht_tx_mcs_nss_8, -1, 3) },
2295 #endif /* CONFIG_VHT_OVERRIDES */
2296 	{ INT(ap_max_inactivity) },
2297 	{ INT(dtim_period) },
2298 	{ INT(beacon_int) },
2299 #ifdef CONFIG_MACSEC
2300 	{ INT_RANGE(macsec_policy, 0, 1) },
2301 	{ INT_RANGE(macsec_integ_only, 0, 1) },
2302 	{ INT_RANGE(macsec_port, 1, 65534) },
2303 	{ INT_RANGE(mka_priority, 0, 255) },
2304 	{ FUNC_KEY(mka_cak) },
2305 	{ FUNC_KEY(mka_ckn) },
2306 #endif /* CONFIG_MACSEC */
2307 #ifdef CONFIG_HS20
2308 	{ INT(update_identifier) },
2309 	{ STR_RANGE(roaming_consortium_selection, 0, MAX_ROAMING_CONS_OI_LEN) },
2310 #endif /* CONFIG_HS20 */
2311 	{ INT_RANGE(mac_addr, 0, 2) },
2312 	{ INT_RANGE(pbss, 0, 2) },
2313 	{ INT_RANGE(wps_disabled, 0, 1) },
2314 	{ INT_RANGE(fils_dh_group, 0, 65535) },
2315 #ifdef CONFIG_DPP
2316 	{ STR(dpp_connector) },
2317 	{ STR_LEN(dpp_netaccesskey) },
2318 	{ INT(dpp_netaccesskey_expiry) },
2319 	{ STR_LEN(dpp_csign) },
2320 #endif /* CONFIG_DPP */
2321 	{ INT_RANGE(owe_group, 0, 65535) },
2322 	{ INT_RANGE(owe_only, 0, 1) },
2323 };
2324 
2325 #undef OFFSET
2326 #undef _STR
2327 #undef STR
2328 #undef STR_KEY
2329 #undef _STR_LEN
2330 #undef STR_LEN
2331 #undef STR_LEN_KEY
2332 #undef _STR_RANGE
2333 #undef STR_RANGE
2334 #undef STR_RANGE_KEY
2335 #undef _INT
2336 #undef INT
2337 #undef INT_RANGE
2338 #undef _FUNC
2339 #undef FUNC
2340 #undef FUNC_KEY
2341 #define NUM_SSID_FIELDS ARRAY_SIZE(ssid_fields)
2342 
2343 
2344 /**
2345  * wpa_config_add_prio_network - Add a network to priority lists
2346  * @config: Configuration data from wpa_config_read()
2347  * @ssid: Pointer to the network configuration to be added to the list
2348  * Returns: 0 on success, -1 on failure
2349  *
2350  * This function is used to add a network block to the priority list of
2351  * networks. This must be called for each network when reading in the full
2352  * configuration. In addition, this can be used indirectly when updating
2353  * priorities by calling wpa_config_update_prio_list().
2354  */
2355 int wpa_config_add_prio_network(struct wpa_config *config,
2356 				struct wpa_ssid *ssid)
2357 {
2358 	int prio;
2359 	struct wpa_ssid *prev, **nlist;
2360 
2361 	/*
2362 	 * Add to an existing priority list if one is available for the
2363 	 * configured priority level for this network.
2364 	 */
2365 	for (prio = 0; prio < config->num_prio; prio++) {
2366 		prev = config->pssid[prio];
2367 		if (prev->priority == ssid->priority) {
2368 			while (prev->pnext)
2369 				prev = prev->pnext;
2370 			prev->pnext = ssid;
2371 			return 0;
2372 		}
2373 	}
2374 
2375 	/* First network for this priority - add a new priority list */
2376 	nlist = os_realloc_array(config->pssid, config->num_prio + 1,
2377 				 sizeof(struct wpa_ssid *));
2378 	if (nlist == NULL)
2379 		return -1;
2380 
2381 	for (prio = 0; prio < config->num_prio; prio++) {
2382 		if (nlist[prio]->priority < ssid->priority) {
2383 			os_memmove(&nlist[prio + 1], &nlist[prio],
2384 				   (config->num_prio - prio) *
2385 				   sizeof(struct wpa_ssid *));
2386 			break;
2387 		}
2388 	}
2389 
2390 	nlist[prio] = ssid;
2391 	config->num_prio++;
2392 	config->pssid = nlist;
2393 
2394 	return 0;
2395 }
2396 
2397 
2398 /**
2399  * wpa_config_update_prio_list - Update network priority list
2400  * @config: Configuration data from wpa_config_read()
2401  * Returns: 0 on success, -1 on failure
2402  *
2403  * This function is called to update the priority list of networks in the
2404  * configuration when a network is being added or removed. This is also called
2405  * if a priority for a network is changed.
2406  */
2407 int wpa_config_update_prio_list(struct wpa_config *config)
2408 {
2409 	struct wpa_ssid *ssid;
2410 	int ret = 0;
2411 
2412 	os_free(config->pssid);
2413 	config->pssid = NULL;
2414 	config->num_prio = 0;
2415 
2416 	ssid = config->ssid;
2417 	while (ssid) {
2418 		ssid->pnext = NULL;
2419 		if (wpa_config_add_prio_network(config, ssid) < 0)
2420 			ret = -1;
2421 		ssid = ssid->next;
2422 	}
2423 
2424 	return ret;
2425 }
2426 
2427 
2428 #ifdef IEEE8021X_EAPOL
2429 static void eap_peer_config_free(struct eap_peer_config *eap)
2430 {
2431 	os_free(eap->eap_methods);
2432 	bin_clear_free(eap->identity, eap->identity_len);
2433 	os_free(eap->anonymous_identity);
2434 	os_free(eap->imsi_identity);
2435 	bin_clear_free(eap->password, eap->password_len);
2436 	os_free(eap->ca_cert);
2437 	os_free(eap->ca_path);
2438 	os_free(eap->client_cert);
2439 	os_free(eap->private_key);
2440 	str_clear_free(eap->private_key_passwd);
2441 	os_free(eap->dh_file);
2442 	os_free(eap->subject_match);
2443 	os_free(eap->altsubject_match);
2444 	os_free(eap->domain_suffix_match);
2445 	os_free(eap->domain_match);
2446 	os_free(eap->ca_cert2);
2447 	os_free(eap->ca_path2);
2448 	os_free(eap->client_cert2);
2449 	os_free(eap->private_key2);
2450 	str_clear_free(eap->private_key2_passwd);
2451 	os_free(eap->dh_file2);
2452 	os_free(eap->subject_match2);
2453 	os_free(eap->altsubject_match2);
2454 	os_free(eap->domain_suffix_match2);
2455 	os_free(eap->domain_match2);
2456 	os_free(eap->phase1);
2457 	os_free(eap->phase2);
2458 	os_free(eap->pcsc);
2459 	str_clear_free(eap->pin);
2460 	os_free(eap->engine_id);
2461 	os_free(eap->key_id);
2462 	os_free(eap->cert_id);
2463 	os_free(eap->ca_cert_id);
2464 	os_free(eap->key2_id);
2465 	os_free(eap->cert2_id);
2466 	os_free(eap->ca_cert2_id);
2467 	str_clear_free(eap->pin2);
2468 	os_free(eap->engine2_id);
2469 	os_free(eap->otp);
2470 	os_free(eap->pending_req_otp);
2471 	os_free(eap->pac_file);
2472 	bin_clear_free(eap->new_password, eap->new_password_len);
2473 	str_clear_free(eap->external_sim_resp);
2474 	os_free(eap->openssl_ciphers);
2475 }
2476 #endif /* IEEE8021X_EAPOL */
2477 
2478 
2479 /**
2480  * wpa_config_free_ssid - Free network/ssid configuration data
2481  * @ssid: Configuration data for the network
2482  *
2483  * This function frees all resources allocated for the network configuration
2484  * data.
2485  */
2486 void wpa_config_free_ssid(struct wpa_ssid *ssid)
2487 {
2488 	struct psk_list_entry *psk;
2489 
2490 	os_free(ssid->ssid);
2491 	str_clear_free(ssid->passphrase);
2492 	os_free(ssid->ext_psk);
2493 	str_clear_free(ssid->sae_password);
2494 	os_free(ssid->sae_password_id);
2495 #ifdef IEEE8021X_EAPOL
2496 	eap_peer_config_free(&ssid->eap);
2497 #endif /* IEEE8021X_EAPOL */
2498 	os_free(ssid->id_str);
2499 	os_free(ssid->scan_freq);
2500 	os_free(ssid->freq_list);
2501 	os_free(ssid->bgscan);
2502 	os_free(ssid->p2p_client_list);
2503 	os_free(ssid->bssid_blacklist);
2504 	os_free(ssid->bssid_whitelist);
2505 #ifdef CONFIG_HT_OVERRIDES
2506 	os_free(ssid->ht_mcs);
2507 #endif /* CONFIG_HT_OVERRIDES */
2508 #ifdef CONFIG_MESH
2509 	os_free(ssid->mesh_basic_rates);
2510 #endif /* CONFIG_MESH */
2511 #ifdef CONFIG_HS20
2512 	os_free(ssid->roaming_consortium_selection);
2513 #endif /* CONFIG_HS20 */
2514 	os_free(ssid->dpp_connector);
2515 	bin_clear_free(ssid->dpp_netaccesskey, ssid->dpp_netaccesskey_len);
2516 	os_free(ssid->dpp_csign);
2517 	while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry,
2518 				    list))) {
2519 		dl_list_del(&psk->list);
2520 		bin_clear_free(psk, sizeof(*psk));
2521 	}
2522 	bin_clear_free(ssid, sizeof(*ssid));
2523 }
2524 
2525 
2526 void wpa_config_free_cred(struct wpa_cred *cred)
2527 {
2528 	size_t i;
2529 
2530 	os_free(cred->realm);
2531 	str_clear_free(cred->username);
2532 	str_clear_free(cred->password);
2533 	os_free(cred->ca_cert);
2534 	os_free(cred->client_cert);
2535 	os_free(cred->private_key);
2536 	str_clear_free(cred->private_key_passwd);
2537 	os_free(cred->imsi);
2538 	str_clear_free(cred->milenage);
2539 	for (i = 0; i < cred->num_domain; i++)
2540 		os_free(cred->domain[i]);
2541 	os_free(cred->domain);
2542 	os_free(cred->domain_suffix_match);
2543 	os_free(cred->eap_method);
2544 	os_free(cred->phase1);
2545 	os_free(cred->phase2);
2546 	os_free(cred->excluded_ssid);
2547 	os_free(cred->roaming_partner);
2548 	os_free(cred->provisioning_sp);
2549 	for (i = 0; i < cred->num_req_conn_capab; i++)
2550 		os_free(cred->req_conn_capab_port[i]);
2551 	os_free(cred->req_conn_capab_port);
2552 	os_free(cred->req_conn_capab_proto);
2553 	os_free(cred);
2554 }
2555 
2556 
2557 void wpa_config_flush_blobs(struct wpa_config *config)
2558 {
2559 #ifndef CONFIG_NO_CONFIG_BLOBS
2560 	struct wpa_config_blob *blob, *prev;
2561 
2562 	blob = config->blobs;
2563 	config->blobs = NULL;
2564 	while (blob) {
2565 		prev = blob;
2566 		blob = blob->next;
2567 		wpa_config_free_blob(prev);
2568 	}
2569 #endif /* CONFIG_NO_CONFIG_BLOBS */
2570 }
2571 
2572 
2573 /**
2574  * wpa_config_free - Free configuration data
2575  * @config: Configuration data from wpa_config_read()
2576  *
2577  * This function frees all resources allocated for the configuration data by
2578  * wpa_config_read().
2579  */
2580 void wpa_config_free(struct wpa_config *config)
2581 {
2582 	struct wpa_ssid *ssid, *prev = NULL;
2583 	struct wpa_cred *cred, *cprev;
2584 	int i;
2585 
2586 	ssid = config->ssid;
2587 	while (ssid) {
2588 		prev = ssid;
2589 		ssid = ssid->next;
2590 		wpa_config_free_ssid(prev);
2591 	}
2592 
2593 	cred = config->cred;
2594 	while (cred) {
2595 		cprev = cred;
2596 		cred = cred->next;
2597 		wpa_config_free_cred(cprev);
2598 	}
2599 
2600 	wpa_config_flush_blobs(config);
2601 
2602 	wpabuf_free(config->wps_vendor_ext_m1);
2603 	for (i = 0; i < MAX_WPS_VENDOR_EXT; i++)
2604 		wpabuf_free(config->wps_vendor_ext[i]);
2605 	os_free(config->ctrl_interface);
2606 	os_free(config->ctrl_interface_group);
2607 	os_free(config->opensc_engine_path);
2608 	os_free(config->pkcs11_engine_path);
2609 	os_free(config->pkcs11_module_path);
2610 	os_free(config->openssl_ciphers);
2611 	os_free(config->pcsc_reader);
2612 	str_clear_free(config->pcsc_pin);
2613 	os_free(config->driver_param);
2614 	os_free(config->device_name);
2615 	os_free(config->manufacturer);
2616 	os_free(config->model_name);
2617 	os_free(config->model_number);
2618 	os_free(config->serial_number);
2619 	os_free(config->config_methods);
2620 	os_free(config->p2p_ssid_postfix);
2621 	os_free(config->pssid);
2622 	os_free(config->p2p_pref_chan);
2623 	os_free(config->p2p_no_go_freq.range);
2624 	os_free(config->autoscan);
2625 	os_free(config->freq_list);
2626 	wpabuf_free(config->wps_nfc_dh_pubkey);
2627 	wpabuf_free(config->wps_nfc_dh_privkey);
2628 	wpabuf_free(config->wps_nfc_dev_pw);
2629 	os_free(config->ext_password_backend);
2630 	os_free(config->sae_groups);
2631 	wpabuf_free(config->ap_vendor_elements);
2632 	os_free(config->osu_dir);
2633 	os_free(config->bgscan);
2634 	os_free(config->wowlan_triggers);
2635 	os_free(config->fst_group_id);
2636 	os_free(config->sched_scan_plans);
2637 #ifdef CONFIG_MBO
2638 	os_free(config->non_pref_chan);
2639 #endif /* CONFIG_MBO */
2640 
2641 	os_free(config);
2642 }
2643 
2644 
2645 /**
2646  * wpa_config_foreach_network - Iterate over each configured network
2647  * @config: Configuration data from wpa_config_read()
2648  * @func: Callback function to process each network
2649  * @arg: Opaque argument to pass to callback function
2650  *
2651  * Iterate over the set of configured networks calling the specified
2652  * function for each item. We guard against callbacks removing the
2653  * supplied network.
2654  */
2655 void wpa_config_foreach_network(struct wpa_config *config,
2656 				void (*func)(void *, struct wpa_ssid *),
2657 				void *arg)
2658 {
2659 	struct wpa_ssid *ssid, *next;
2660 
2661 	ssid = config->ssid;
2662 	while (ssid) {
2663 		next = ssid->next;
2664 		func(arg, ssid);
2665 		ssid = next;
2666 	}
2667 }
2668 
2669 
2670 /**
2671  * wpa_config_get_network - Get configured network based on id
2672  * @config: Configuration data from wpa_config_read()
2673  * @id: Unique network id to search for
2674  * Returns: Network configuration or %NULL if not found
2675  */
2676 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
2677 {
2678 	struct wpa_ssid *ssid;
2679 
2680 	ssid = config->ssid;
2681 	while (ssid) {
2682 		if (id == ssid->id)
2683 			break;
2684 		ssid = ssid->next;
2685 	}
2686 
2687 	return ssid;
2688 }
2689 
2690 
2691 /**
2692  * wpa_config_add_network - Add a new network with empty configuration
2693  * @config: Configuration data from wpa_config_read()
2694  * Returns: The new network configuration or %NULL if operation failed
2695  */
2696 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
2697 {
2698 	int id;
2699 	struct wpa_ssid *ssid, *last = NULL;
2700 
2701 	id = -1;
2702 	ssid = config->ssid;
2703 	while (ssid) {
2704 		if (ssid->id > id)
2705 			id = ssid->id;
2706 		last = ssid;
2707 		ssid = ssid->next;
2708 	}
2709 	id++;
2710 
2711 	ssid = os_zalloc(sizeof(*ssid));
2712 	if (ssid == NULL)
2713 		return NULL;
2714 	ssid->id = id;
2715 	dl_list_init(&ssid->psk_list);
2716 	if (last)
2717 		last->next = ssid;
2718 	else
2719 		config->ssid = ssid;
2720 
2721 	wpa_config_update_prio_list(config);
2722 
2723 	return ssid;
2724 }
2725 
2726 
2727 /**
2728  * wpa_config_remove_network - Remove a configured network based on id
2729  * @config: Configuration data from wpa_config_read()
2730  * @id: Unique network id to search for
2731  * Returns: 0 on success, or -1 if the network was not found
2732  */
2733 int wpa_config_remove_network(struct wpa_config *config, int id)
2734 {
2735 	struct wpa_ssid *ssid, *prev = NULL;
2736 
2737 	ssid = config->ssid;
2738 	while (ssid) {
2739 		if (id == ssid->id)
2740 			break;
2741 		prev = ssid;
2742 		ssid = ssid->next;
2743 	}
2744 
2745 	if (ssid == NULL)
2746 		return -1;
2747 
2748 	if (prev)
2749 		prev->next = ssid->next;
2750 	else
2751 		config->ssid = ssid->next;
2752 
2753 	wpa_config_update_prio_list(config);
2754 	wpa_config_free_ssid(ssid);
2755 	return 0;
2756 }
2757 
2758 
2759 /**
2760  * wpa_config_set_network_defaults - Set network default values
2761  * @ssid: Pointer to network configuration data
2762  */
2763 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2764 {
2765 	ssid->proto = DEFAULT_PROTO;
2766 	ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2767 	ssid->group_cipher = DEFAULT_GROUP;
2768 	ssid->key_mgmt = DEFAULT_KEY_MGMT;
2769 	ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2770 	ssid->ht = 1;
2771 #ifdef IEEE8021X_EAPOL
2772 	ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2773 	ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2774 	ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2775 	ssid->eap.sim_num = DEFAULT_USER_SELECTED_SIM;
2776 #endif /* IEEE8021X_EAPOL */
2777 #ifdef CONFIG_MESH
2778 	ssid->dot11MeshMaxRetries = DEFAULT_MESH_MAX_RETRIES;
2779 	ssid->dot11MeshRetryTimeout = DEFAULT_MESH_RETRY_TIMEOUT;
2780 	ssid->dot11MeshConfirmTimeout = DEFAULT_MESH_CONFIRM_TIMEOUT;
2781 	ssid->dot11MeshHoldingTimeout = DEFAULT_MESH_HOLDING_TIMEOUT;
2782 	ssid->mesh_rssi_threshold = DEFAULT_MESH_RSSI_THRESHOLD;
2783 #endif /* CONFIG_MESH */
2784 #ifdef CONFIG_HT_OVERRIDES
2785 	ssid->disable_ht = DEFAULT_DISABLE_HT;
2786 	ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2787 	ssid->disable_sgi = DEFAULT_DISABLE_SGI;
2788 	ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
2789 	ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2790 	ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2791 	ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2792 #endif /* CONFIG_HT_OVERRIDES */
2793 #ifdef CONFIG_VHT_OVERRIDES
2794 	ssid->vht_rx_mcs_nss_1 = -1;
2795 	ssid->vht_rx_mcs_nss_2 = -1;
2796 	ssid->vht_rx_mcs_nss_3 = -1;
2797 	ssid->vht_rx_mcs_nss_4 = -1;
2798 	ssid->vht_rx_mcs_nss_5 = -1;
2799 	ssid->vht_rx_mcs_nss_6 = -1;
2800 	ssid->vht_rx_mcs_nss_7 = -1;
2801 	ssid->vht_rx_mcs_nss_8 = -1;
2802 	ssid->vht_tx_mcs_nss_1 = -1;
2803 	ssid->vht_tx_mcs_nss_2 = -1;
2804 	ssid->vht_tx_mcs_nss_3 = -1;
2805 	ssid->vht_tx_mcs_nss_4 = -1;
2806 	ssid->vht_tx_mcs_nss_5 = -1;
2807 	ssid->vht_tx_mcs_nss_6 = -1;
2808 	ssid->vht_tx_mcs_nss_7 = -1;
2809 	ssid->vht_tx_mcs_nss_8 = -1;
2810 #endif /* CONFIG_VHT_OVERRIDES */
2811 	ssid->proactive_key_caching = -1;
2812 #ifdef CONFIG_IEEE80211W
2813 	ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2814 #endif /* CONFIG_IEEE80211W */
2815 #ifdef CONFIG_MACSEC
2816 	ssid->mka_priority = DEFAULT_PRIO_NOT_KEY_SERVER;
2817 #endif /* CONFIG_MACSEC */
2818 	ssid->mac_addr = -1;
2819 }
2820 
2821 
2822 /**
2823  * wpa_config_set - Set a variable in network configuration
2824  * @ssid: Pointer to network configuration data
2825  * @var: Variable name, e.g., "ssid"
2826  * @value: Variable value
2827  * @line: Line number in configuration file or 0 if not used
2828  * Returns: 0 on success with possible change in the value, 1 on success with
2829  * no change to previously configured value, or -1 on failure
2830  *
2831  * This function can be used to set network configuration variables based on
2832  * both the configuration file and management interface input. The value
2833  * parameter must be in the same format as the text-based configuration file is
2834  * using. For example, strings are using double quotation marks.
2835  */
2836 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2837 		   int line)
2838 {
2839 	size_t i;
2840 	int ret = 0;
2841 
2842 	if (ssid == NULL || var == NULL || value == NULL)
2843 		return -1;
2844 
2845 	for (i = 0; i < NUM_SSID_FIELDS; i++) {
2846 		const struct parse_data *field = &ssid_fields[i];
2847 		if (os_strcmp(var, field->name) != 0)
2848 			continue;
2849 
2850 		ret = field->parser(field, ssid, line, value);
2851 		if (ret < 0) {
2852 			if (line) {
2853 				wpa_printf(MSG_ERROR, "Line %d: failed to "
2854 					   "parse %s '%s'.", line, var, value);
2855 			}
2856 			ret = -1;
2857 		}
2858 		break;
2859 	}
2860 	if (i == NUM_SSID_FIELDS) {
2861 		if (line) {
2862 			wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2863 				   "'%s'.", line, var);
2864 		}
2865 		ret = -1;
2866 	}
2867 
2868 	return ret;
2869 }
2870 
2871 
2872 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2873 			  const char *value)
2874 {
2875 	size_t len;
2876 	char *buf;
2877 	int ret;
2878 
2879 	len = os_strlen(value);
2880 	buf = os_malloc(len + 3);
2881 	if (buf == NULL)
2882 		return -1;
2883 	buf[0] = '"';
2884 	os_memcpy(buf + 1, value, len);
2885 	buf[len + 1] = '"';
2886 	buf[len + 2] = '\0';
2887 	ret = wpa_config_set(ssid, var, buf, 0);
2888 	os_free(buf);
2889 	return ret;
2890 }
2891 
2892 
2893 /**
2894  * wpa_config_get_all - Get all options from network configuration
2895  * @ssid: Pointer to network configuration data
2896  * @get_keys: Determines if keys/passwords will be included in returned list
2897  *	(if they may be exported)
2898  * Returns: %NULL terminated list of all set keys and their values in the form
2899  * of [key1, val1, key2, val2, ... , NULL]
2900  *
2901  * This function can be used to get list of all configured network properties.
2902  * The caller is responsible for freeing the returned list and all its
2903  * elements.
2904  */
2905 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2906 {
2907 #ifdef NO_CONFIG_WRITE
2908 	return NULL;
2909 #else /* NO_CONFIG_WRITE */
2910 	const struct parse_data *field;
2911 	char *key, *value;
2912 	size_t i;
2913 	char **props;
2914 	int fields_num;
2915 
2916 	get_keys = get_keys && ssid->export_keys;
2917 
2918 	props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
2919 	if (!props)
2920 		return NULL;
2921 
2922 	fields_num = 0;
2923 	for (i = 0; i < NUM_SSID_FIELDS; i++) {
2924 		field = &ssid_fields[i];
2925 		if (field->key_data && !get_keys)
2926 			continue;
2927 		value = field->writer(field, ssid);
2928 		if (value == NULL)
2929 			continue;
2930 		if (os_strlen(value) == 0) {
2931 			os_free(value);
2932 			continue;
2933 		}
2934 
2935 		key = os_strdup(field->name);
2936 		if (key == NULL) {
2937 			os_free(value);
2938 			goto err;
2939 		}
2940 
2941 		props[fields_num * 2] = key;
2942 		props[fields_num * 2 + 1] = value;
2943 
2944 		fields_num++;
2945 	}
2946 
2947 	return props;
2948 
2949 err:
2950 	for (i = 0; props[i]; i++)
2951 		os_free(props[i]);
2952 	os_free(props);
2953 	return NULL;
2954 #endif /* NO_CONFIG_WRITE */
2955 }
2956 
2957 
2958 #ifndef NO_CONFIG_WRITE
2959 /**
2960  * wpa_config_get - Get a variable in network configuration
2961  * @ssid: Pointer to network configuration data
2962  * @var: Variable name, e.g., "ssid"
2963  * Returns: Value of the variable or %NULL on failure
2964  *
2965  * This function can be used to get network configuration variables. The
2966  * returned value is a copy of the configuration variable in text format, i.e,.
2967  * the same format that the text-based configuration file and wpa_config_set()
2968  * are using for the value. The caller is responsible for freeing the returned
2969  * value.
2970  */
2971 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2972 {
2973 	size_t i;
2974 
2975 	if (ssid == NULL || var == NULL)
2976 		return NULL;
2977 
2978 	for (i = 0; i < NUM_SSID_FIELDS; i++) {
2979 		const struct parse_data *field = &ssid_fields[i];
2980 		if (os_strcmp(var, field->name) == 0) {
2981 			char *ret = field->writer(field, ssid);
2982 
2983 			if (ret && has_newline(ret)) {
2984 				wpa_printf(MSG_ERROR,
2985 					   "Found newline in value for %s; not returning it",
2986 					   var);
2987 				os_free(ret);
2988 				ret = NULL;
2989 			}
2990 
2991 			return ret;
2992 		}
2993 	}
2994 
2995 	return NULL;
2996 }
2997 
2998 
2999 /**
3000  * wpa_config_get_no_key - Get a variable in network configuration (no keys)
3001  * @ssid: Pointer to network configuration data
3002  * @var: Variable name, e.g., "ssid"
3003  * Returns: Value of the variable or %NULL on failure
3004  *
3005  * This function can be used to get network configuration variable like
3006  * wpa_config_get(). The only difference is that this functions does not expose
3007  * key/password material from the configuration. In case a key/password field
3008  * is requested, the returned value is an empty string or %NULL if the variable
3009  * is not set or "*" if the variable is set (regardless of its value). The
3010  * returned value is a copy of the configuration variable in text format, i.e,.
3011  * the same format that the text-based configuration file and wpa_config_set()
3012  * are using for the value. The caller is responsible for freeing the returned
3013  * value.
3014  */
3015 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
3016 {
3017 	size_t i;
3018 
3019 	if (ssid == NULL || var == NULL)
3020 		return NULL;
3021 
3022 	for (i = 0; i < NUM_SSID_FIELDS; i++) {
3023 		const struct parse_data *field = &ssid_fields[i];
3024 		if (os_strcmp(var, field->name) == 0) {
3025 			char *res = field->writer(field, ssid);
3026 			if (field->key_data) {
3027 				if (res && res[0]) {
3028 					wpa_printf(MSG_DEBUG, "Do not allow "
3029 						   "key_data field to be "
3030 						   "exposed");
3031 					str_clear_free(res);
3032 					return os_strdup("*");
3033 				}
3034 
3035 				os_free(res);
3036 				return NULL;
3037 			}
3038 			return res;
3039 		}
3040 	}
3041 
3042 	return NULL;
3043 }
3044 #endif /* NO_CONFIG_WRITE */
3045 
3046 
3047 /**
3048  * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
3049  * @ssid: Pointer to network configuration data
3050  *
3051  * This function must be called to update WPA PSK when either SSID or the
3052  * passphrase has changed for the network configuration.
3053  */
3054 void wpa_config_update_psk(struct wpa_ssid *ssid)
3055 {
3056 #ifndef CONFIG_NO_PBKDF2
3057 	pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
3058 		    ssid->psk, PMK_LEN);
3059 	wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
3060 			ssid->psk, PMK_LEN);
3061 	ssid->psk_set = 1;
3062 #endif /* CONFIG_NO_PBKDF2 */
3063 }
3064 
3065 
3066 static int wpa_config_set_cred_req_conn_capab(struct wpa_cred *cred,
3067 					      const char *value)
3068 {
3069 	u8 *proto;
3070 	int **port;
3071 	int *ports, *nports;
3072 	const char *pos;
3073 	unsigned int num_ports;
3074 
3075 	proto = os_realloc_array(cred->req_conn_capab_proto,
3076 				 cred->num_req_conn_capab + 1, sizeof(u8));
3077 	if (proto == NULL)
3078 		return -1;
3079 	cred->req_conn_capab_proto = proto;
3080 
3081 	port = os_realloc_array(cred->req_conn_capab_port,
3082 				cred->num_req_conn_capab + 1, sizeof(int *));
3083 	if (port == NULL)
3084 		return -1;
3085 	cred->req_conn_capab_port = port;
3086 
3087 	proto[cred->num_req_conn_capab] = atoi(value);
3088 
3089 	pos = os_strchr(value, ':');
3090 	if (pos == NULL) {
3091 		port[cred->num_req_conn_capab] = NULL;
3092 		cred->num_req_conn_capab++;
3093 		return 0;
3094 	}
3095 	pos++;
3096 
3097 	ports = NULL;
3098 	num_ports = 0;
3099 
3100 	while (*pos) {
3101 		nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
3102 		if (nports == NULL) {
3103 			os_free(ports);
3104 			return -1;
3105 		}
3106 		ports = nports;
3107 		ports[num_ports++] = atoi(pos);
3108 
3109 		pos = os_strchr(pos, ',');
3110 		if (pos == NULL)
3111 			break;
3112 		pos++;
3113 	}
3114 
3115 	nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
3116 	if (nports == NULL) {
3117 		os_free(ports);
3118 		return -1;
3119 	}
3120 	ports = nports;
3121 	ports[num_ports] = -1;
3122 
3123 	port[cred->num_req_conn_capab] = ports;
3124 	cred->num_req_conn_capab++;
3125 	return 0;
3126 }
3127 
3128 
3129 static int wpa_config_set_cred_roaming_consortiums(struct wpa_cred *cred,
3130 						   const char *value)
3131 {
3132 	u8 roaming_consortiums[MAX_ROAMING_CONS][MAX_ROAMING_CONS_OI_LEN];
3133 	size_t roaming_consortiums_len[MAX_ROAMING_CONS];
3134 	unsigned int num_roaming_consortiums = 0;
3135 	const char *pos, *end;
3136 	size_t len;
3137 
3138 	os_memset(roaming_consortiums, 0, sizeof(roaming_consortiums));
3139 	os_memset(roaming_consortiums_len, 0, sizeof(roaming_consortiums_len));
3140 
3141 	for (pos = value;;) {
3142 		end = os_strchr(pos, ',');
3143 		len = end ? (size_t) (end - pos) : os_strlen(pos);
3144 		if (!end && len == 0)
3145 			break;
3146 		if (len == 0 || (len & 1) != 0 ||
3147 		    len / 2 > MAX_ROAMING_CONS_OI_LEN ||
3148 		    hexstr2bin(pos,
3149 			       roaming_consortiums[num_roaming_consortiums],
3150 			       len / 2) < 0) {
3151 			wpa_printf(MSG_INFO,
3152 				   "Invalid roaming_consortiums entry: %s",
3153 				   pos);
3154 			return -1;
3155 		}
3156 		roaming_consortiums_len[num_roaming_consortiums] = len / 2;
3157 		num_roaming_consortiums++;
3158 
3159 		if (!end)
3160 			break;
3161 
3162 		if (num_roaming_consortiums >= MAX_ROAMING_CONS) {
3163 			wpa_printf(MSG_INFO,
3164 				   "Too many roaming_consortiums OIs");
3165 			return -1;
3166 		}
3167 
3168 		pos = end + 1;
3169 	}
3170 
3171 	os_memcpy(cred->roaming_consortiums, roaming_consortiums,
3172 		  sizeof(roaming_consortiums));
3173 	os_memcpy(cred->roaming_consortiums_len, roaming_consortiums_len,
3174 		  sizeof(roaming_consortiums_len));
3175 	cred->num_roaming_consortiums = num_roaming_consortiums;
3176 
3177 	return 0;
3178 }
3179 
3180 
3181 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
3182 			const char *value, int line)
3183 {
3184 	char *val;
3185 	size_t len;
3186 	int res;
3187 
3188 	if (os_strcmp(var, "temporary") == 0) {
3189 		cred->temporary = atoi(value);
3190 		return 0;
3191 	}
3192 
3193 	if (os_strcmp(var, "priority") == 0) {
3194 		cred->priority = atoi(value);
3195 		return 0;
3196 	}
3197 
3198 	if (os_strcmp(var, "sp_priority") == 0) {
3199 		int prio = atoi(value);
3200 		if (prio < 0 || prio > 255)
3201 			return -1;
3202 		cred->sp_priority = prio;
3203 		return 0;
3204 	}
3205 
3206 	if (os_strcmp(var, "pcsc") == 0) {
3207 		cred->pcsc = atoi(value);
3208 		return 0;
3209 	}
3210 
3211 	if (os_strcmp(var, "eap") == 0) {
3212 		struct eap_method_type method;
3213 		method.method = eap_peer_get_type(value, &method.vendor);
3214 		if (method.vendor == EAP_VENDOR_IETF &&
3215 		    method.method == EAP_TYPE_NONE) {
3216 			wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
3217 				   "for a credential", line, value);
3218 			return -1;
3219 		}
3220 		os_free(cred->eap_method);
3221 		cred->eap_method = os_malloc(sizeof(*cred->eap_method));
3222 		if (cred->eap_method == NULL)
3223 			return -1;
3224 		os_memcpy(cred->eap_method, &method, sizeof(method));
3225 		return 0;
3226 	}
3227 
3228 	if (os_strcmp(var, "password") == 0 &&
3229 	    os_strncmp(value, "ext:", 4) == 0) {
3230 		if (has_newline(value))
3231 			return -1;
3232 		str_clear_free(cred->password);
3233 		cred->password = os_strdup(value);
3234 		cred->ext_password = 1;
3235 		return 0;
3236 	}
3237 
3238 	if (os_strcmp(var, "update_identifier") == 0) {
3239 		cred->update_identifier = atoi(value);
3240 		return 0;
3241 	}
3242 
3243 	if (os_strcmp(var, "min_dl_bandwidth_home") == 0) {
3244 		cred->min_dl_bandwidth_home = atoi(value);
3245 		return 0;
3246 	}
3247 
3248 	if (os_strcmp(var, "min_ul_bandwidth_home") == 0) {
3249 		cred->min_ul_bandwidth_home = atoi(value);
3250 		return 0;
3251 	}
3252 
3253 	if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0) {
3254 		cred->min_dl_bandwidth_roaming = atoi(value);
3255 		return 0;
3256 	}
3257 
3258 	if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0) {
3259 		cred->min_ul_bandwidth_roaming = atoi(value);
3260 		return 0;
3261 	}
3262 
3263 	if (os_strcmp(var, "max_bss_load") == 0) {
3264 		cred->max_bss_load = atoi(value);
3265 		return 0;
3266 	}
3267 
3268 	if (os_strcmp(var, "req_conn_capab") == 0)
3269 		return wpa_config_set_cred_req_conn_capab(cred, value);
3270 
3271 	if (os_strcmp(var, "ocsp") == 0) {
3272 		cred->ocsp = atoi(value);
3273 		return 0;
3274 	}
3275 
3276 	if (os_strcmp(var, "sim_num") == 0) {
3277 		cred->sim_num = atoi(value);
3278 		return 0;
3279 	}
3280 
3281 	val = wpa_config_parse_string(value, &len);
3282 	if (val == NULL ||
3283 	    (os_strcmp(var, "excluded_ssid") != 0 &&
3284 	     os_strcmp(var, "roaming_consortium") != 0 &&
3285 	     os_strcmp(var, "required_roaming_consortium") != 0 &&
3286 	     has_newline(val))) {
3287 		wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
3288 			   "value '%s'.", line, var, value);
3289 		os_free(val);
3290 		return -1;
3291 	}
3292 
3293 	if (os_strcmp(var, "realm") == 0) {
3294 		os_free(cred->realm);
3295 		cred->realm = val;
3296 		return 0;
3297 	}
3298 
3299 	if (os_strcmp(var, "username") == 0) {
3300 		str_clear_free(cred->username);
3301 		cred->username = val;
3302 		return 0;
3303 	}
3304 
3305 	if (os_strcmp(var, "password") == 0) {
3306 		str_clear_free(cred->password);
3307 		cred->password = val;
3308 		cred->ext_password = 0;
3309 		return 0;
3310 	}
3311 
3312 	if (os_strcmp(var, "ca_cert") == 0) {
3313 		os_free(cred->ca_cert);
3314 		cred->ca_cert = val;
3315 		return 0;
3316 	}
3317 
3318 	if (os_strcmp(var, "client_cert") == 0) {
3319 		os_free(cred->client_cert);
3320 		cred->client_cert = val;
3321 		return 0;
3322 	}
3323 
3324 	if (os_strcmp(var, "private_key") == 0) {
3325 		os_free(cred->private_key);
3326 		cred->private_key = val;
3327 		return 0;
3328 	}
3329 
3330 	if (os_strcmp(var, "private_key_passwd") == 0) {
3331 		str_clear_free(cred->private_key_passwd);
3332 		cred->private_key_passwd = val;
3333 		return 0;
3334 	}
3335 
3336 	if (os_strcmp(var, "imsi") == 0) {
3337 		os_free(cred->imsi);
3338 		cred->imsi = val;
3339 		return 0;
3340 	}
3341 
3342 	if (os_strcmp(var, "milenage") == 0) {
3343 		str_clear_free(cred->milenage);
3344 		cred->milenage = val;
3345 		return 0;
3346 	}
3347 
3348 	if (os_strcmp(var, "domain_suffix_match") == 0) {
3349 		os_free(cred->domain_suffix_match);
3350 		cred->domain_suffix_match = val;
3351 		return 0;
3352 	}
3353 
3354 	if (os_strcmp(var, "domain") == 0) {
3355 		char **new_domain;
3356 		new_domain = os_realloc_array(cred->domain,
3357 					      cred->num_domain + 1,
3358 					      sizeof(char *));
3359 		if (new_domain == NULL) {
3360 			os_free(val);
3361 			return -1;
3362 		}
3363 		new_domain[cred->num_domain++] = val;
3364 		cred->domain = new_domain;
3365 		return 0;
3366 	}
3367 
3368 	if (os_strcmp(var, "phase1") == 0) {
3369 		os_free(cred->phase1);
3370 		cred->phase1 = val;
3371 		return 0;
3372 	}
3373 
3374 	if (os_strcmp(var, "phase2") == 0) {
3375 		os_free(cred->phase2);
3376 		cred->phase2 = val;
3377 		return 0;
3378 	}
3379 
3380 	if (os_strcmp(var, "roaming_consortium") == 0) {
3381 		if (len < 3 || len > sizeof(cred->roaming_consortium)) {
3382 			wpa_printf(MSG_ERROR, "Line %d: invalid "
3383 				   "roaming_consortium length %d (3..15 "
3384 				   "expected)", line, (int) len);
3385 			os_free(val);
3386 			return -1;
3387 		}
3388 		os_memcpy(cred->roaming_consortium, val, len);
3389 		cred->roaming_consortium_len = len;
3390 		os_free(val);
3391 		return 0;
3392 	}
3393 
3394 	if (os_strcmp(var, "required_roaming_consortium") == 0) {
3395 		if (len < 3 || len > sizeof(cred->required_roaming_consortium))
3396 		{
3397 			wpa_printf(MSG_ERROR, "Line %d: invalid "
3398 				   "required_roaming_consortium length %d "
3399 				   "(3..15 expected)", line, (int) len);
3400 			os_free(val);
3401 			return -1;
3402 		}
3403 		os_memcpy(cred->required_roaming_consortium, val, len);
3404 		cred->required_roaming_consortium_len = len;
3405 		os_free(val);
3406 		return 0;
3407 	}
3408 
3409 	if (os_strcmp(var, "roaming_consortiums") == 0) {
3410 		res = wpa_config_set_cred_roaming_consortiums(cred, val);
3411 		if (res < 0)
3412 			wpa_printf(MSG_ERROR,
3413 				   "Line %d: invalid roaming_consortiums",
3414 				   line);
3415 		os_free(val);
3416 		return res;
3417 	}
3418 
3419 	if (os_strcmp(var, "excluded_ssid") == 0) {
3420 		struct excluded_ssid *e;
3421 
3422 		if (len > SSID_MAX_LEN) {
3423 			wpa_printf(MSG_ERROR, "Line %d: invalid "
3424 				   "excluded_ssid length %d", line, (int) len);
3425 			os_free(val);
3426 			return -1;
3427 		}
3428 
3429 		e = os_realloc_array(cred->excluded_ssid,
3430 				     cred->num_excluded_ssid + 1,
3431 				     sizeof(struct excluded_ssid));
3432 		if (e == NULL) {
3433 			os_free(val);
3434 			return -1;
3435 		}
3436 		cred->excluded_ssid = e;
3437 
3438 		e = &cred->excluded_ssid[cred->num_excluded_ssid++];
3439 		os_memcpy(e->ssid, val, len);
3440 		e->ssid_len = len;
3441 
3442 		os_free(val);
3443 
3444 		return 0;
3445 	}
3446 
3447 	if (os_strcmp(var, "roaming_partner") == 0) {
3448 		struct roaming_partner *p;
3449 		char *pos;
3450 
3451 		p = os_realloc_array(cred->roaming_partner,
3452 				     cred->num_roaming_partner + 1,
3453 				     sizeof(struct roaming_partner));
3454 		if (p == NULL) {
3455 			os_free(val);
3456 			return -1;
3457 		}
3458 		cred->roaming_partner = p;
3459 
3460 		p = &cred->roaming_partner[cred->num_roaming_partner];
3461 
3462 		pos = os_strchr(val, ',');
3463 		if (pos == NULL) {
3464 			os_free(val);
3465 			return -1;
3466 		}
3467 		*pos++ = '\0';
3468 		if (pos - val - 1 >= (int) sizeof(p->fqdn)) {
3469 			os_free(val);
3470 			return -1;
3471 		}
3472 		os_memcpy(p->fqdn, val, pos - val);
3473 
3474 		p->exact_match = atoi(pos);
3475 
3476 		pos = os_strchr(pos, ',');
3477 		if (pos == NULL) {
3478 			os_free(val);
3479 			return -1;
3480 		}
3481 		*pos++ = '\0';
3482 
3483 		p->priority = atoi(pos);
3484 
3485 		pos = os_strchr(pos, ',');
3486 		if (pos == NULL) {
3487 			os_free(val);
3488 			return -1;
3489 		}
3490 		*pos++ = '\0';
3491 
3492 		if (os_strlen(pos) >= sizeof(p->country)) {
3493 			os_free(val);
3494 			return -1;
3495 		}
3496 		os_memcpy(p->country, pos, os_strlen(pos) + 1);
3497 
3498 		cred->num_roaming_partner++;
3499 		os_free(val);
3500 
3501 		return 0;
3502 	}
3503 
3504 	if (os_strcmp(var, "provisioning_sp") == 0) {
3505 		os_free(cred->provisioning_sp);
3506 		cred->provisioning_sp = val;
3507 		return 0;
3508 	}
3509 
3510 	if (line) {
3511 		wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
3512 			   line, var);
3513 	}
3514 
3515 	os_free(val);
3516 
3517 	return -1;
3518 }
3519 
3520 
3521 static char * alloc_int_str(int val)
3522 {
3523 	const unsigned int bufsize = 20;
3524 	char *buf;
3525 	int res;
3526 
3527 	buf = os_malloc(bufsize);
3528 	if (buf == NULL)
3529 		return NULL;
3530 	res = os_snprintf(buf, bufsize, "%d", val);
3531 	if (os_snprintf_error(bufsize, res)) {
3532 		os_free(buf);
3533 		buf = NULL;
3534 	}
3535 	return buf;
3536 }
3537 
3538 
3539 static char * alloc_strdup(const char *str)
3540 {
3541 	if (str == NULL)
3542 		return NULL;
3543 	return os_strdup(str);
3544 }
3545 
3546 
3547 char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var)
3548 {
3549 	if (os_strcmp(var, "temporary") == 0)
3550 		return alloc_int_str(cred->temporary);
3551 
3552 	if (os_strcmp(var, "priority") == 0)
3553 		return alloc_int_str(cred->priority);
3554 
3555 	if (os_strcmp(var, "sp_priority") == 0)
3556 		return alloc_int_str(cred->sp_priority);
3557 
3558 	if (os_strcmp(var, "pcsc") == 0)
3559 		return alloc_int_str(cred->pcsc);
3560 
3561 	if (os_strcmp(var, "eap") == 0) {
3562 		if (!cred->eap_method)
3563 			return NULL;
3564 		return alloc_strdup(eap_get_name(cred->eap_method[0].vendor,
3565 						 cred->eap_method[0].method));
3566 	}
3567 
3568 	if (os_strcmp(var, "update_identifier") == 0)
3569 		return alloc_int_str(cred->update_identifier);
3570 
3571 	if (os_strcmp(var, "min_dl_bandwidth_home") == 0)
3572 		return alloc_int_str(cred->min_dl_bandwidth_home);
3573 
3574 	if (os_strcmp(var, "min_ul_bandwidth_home") == 0)
3575 		return alloc_int_str(cred->min_ul_bandwidth_home);
3576 
3577 	if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0)
3578 		return alloc_int_str(cred->min_dl_bandwidth_roaming);
3579 
3580 	if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0)
3581 		return alloc_int_str(cred->min_ul_bandwidth_roaming);
3582 
3583 	if (os_strcmp(var, "max_bss_load") == 0)
3584 		return alloc_int_str(cred->max_bss_load);
3585 
3586 	if (os_strcmp(var, "req_conn_capab") == 0) {
3587 		unsigned int i;
3588 		char *buf, *end, *pos;
3589 		int ret;
3590 
3591 		if (!cred->num_req_conn_capab)
3592 			return NULL;
3593 
3594 		buf = os_malloc(4000);
3595 		if (buf == NULL)
3596 			return NULL;
3597 		pos = buf;
3598 		end = pos + 4000;
3599 		for (i = 0; i < cred->num_req_conn_capab; i++) {
3600 			int *ports;
3601 
3602 			ret = os_snprintf(pos, end - pos, "%s%u",
3603 					  i > 0 ? "\n" : "",
3604 					  cred->req_conn_capab_proto[i]);
3605 			if (os_snprintf_error(end - pos, ret))
3606 				return buf;
3607 			pos += ret;
3608 
3609 			ports = cred->req_conn_capab_port[i];
3610 			if (ports) {
3611 				int j;
3612 				for (j = 0; ports[j] != -1; j++) {
3613 					ret = os_snprintf(pos, end - pos,
3614 							  "%s%d",
3615 							  j > 0 ? "," : ":",
3616 							  ports[j]);
3617 					if (os_snprintf_error(end - pos, ret))
3618 						return buf;
3619 					pos += ret;
3620 				}
3621 			}
3622 		}
3623 
3624 		return buf;
3625 	}
3626 
3627 	if (os_strcmp(var, "ocsp") == 0)
3628 		return alloc_int_str(cred->ocsp);
3629 
3630 	if (os_strcmp(var, "realm") == 0)
3631 		return alloc_strdup(cred->realm);
3632 
3633 	if (os_strcmp(var, "username") == 0)
3634 		return alloc_strdup(cred->username);
3635 
3636 	if (os_strcmp(var, "password") == 0) {
3637 		if (!cred->password)
3638 			return NULL;
3639 		return alloc_strdup("*");
3640 	}
3641 
3642 	if (os_strcmp(var, "ca_cert") == 0)
3643 		return alloc_strdup(cred->ca_cert);
3644 
3645 	if (os_strcmp(var, "client_cert") == 0)
3646 		return alloc_strdup(cred->client_cert);
3647 
3648 	if (os_strcmp(var, "private_key") == 0)
3649 		return alloc_strdup(cred->private_key);
3650 
3651 	if (os_strcmp(var, "private_key_passwd") == 0) {
3652 		if (!cred->private_key_passwd)
3653 			return NULL;
3654 		return alloc_strdup("*");
3655 	}
3656 
3657 	if (os_strcmp(var, "imsi") == 0)
3658 		return alloc_strdup(cred->imsi);
3659 
3660 	if (os_strcmp(var, "milenage") == 0) {
3661 		if (!(cred->milenage))
3662 			return NULL;
3663 		return alloc_strdup("*");
3664 	}
3665 
3666 	if (os_strcmp(var, "domain_suffix_match") == 0)
3667 		return alloc_strdup(cred->domain_suffix_match);
3668 
3669 	if (os_strcmp(var, "domain") == 0) {
3670 		unsigned int i;
3671 		char *buf, *end, *pos;
3672 		int ret;
3673 
3674 		if (!cred->num_domain)
3675 			return NULL;
3676 
3677 		buf = os_malloc(4000);
3678 		if (buf == NULL)
3679 			return NULL;
3680 		pos = buf;
3681 		end = pos + 4000;
3682 
3683 		for (i = 0; i < cred->num_domain; i++) {
3684 			ret = os_snprintf(pos, end - pos, "%s%s",
3685 					  i > 0 ? "\n" : "", cred->domain[i]);
3686 			if (os_snprintf_error(end - pos, ret))
3687 				return buf;
3688 			pos += ret;
3689 		}
3690 
3691 		return buf;
3692 	}
3693 
3694 	if (os_strcmp(var, "phase1") == 0)
3695 		return alloc_strdup(cred->phase1);
3696 
3697 	if (os_strcmp(var, "phase2") == 0)
3698 		return alloc_strdup(cred->phase2);
3699 
3700 	if (os_strcmp(var, "roaming_consortium") == 0) {
3701 		size_t buflen;
3702 		char *buf;
3703 
3704 		if (!cred->roaming_consortium_len)
3705 			return NULL;
3706 		buflen = cred->roaming_consortium_len * 2 + 1;
3707 		buf = os_malloc(buflen);
3708 		if (buf == NULL)
3709 			return NULL;
3710 		wpa_snprintf_hex(buf, buflen, cred->roaming_consortium,
3711 				 cred->roaming_consortium_len);
3712 		return buf;
3713 	}
3714 
3715 	if (os_strcmp(var, "required_roaming_consortium") == 0) {
3716 		size_t buflen;
3717 		char *buf;
3718 
3719 		if (!cred->required_roaming_consortium_len)
3720 			return NULL;
3721 		buflen = cred->required_roaming_consortium_len * 2 + 1;
3722 		buf = os_malloc(buflen);
3723 		if (buf == NULL)
3724 			return NULL;
3725 		wpa_snprintf_hex(buf, buflen, cred->required_roaming_consortium,
3726 				 cred->required_roaming_consortium_len);
3727 		return buf;
3728 	}
3729 
3730 	if (os_strcmp(var, "roaming_consortiums") == 0) {
3731 		size_t buflen;
3732 		char *buf, *pos;
3733 		size_t i;
3734 
3735 		if (!cred->num_roaming_consortiums)
3736 			return NULL;
3737 		buflen = cred->num_roaming_consortiums *
3738 			MAX_ROAMING_CONS_OI_LEN * 2 + 1;
3739 		buf = os_malloc(buflen);
3740 		if (!buf)
3741 			return NULL;
3742 		pos = buf;
3743 		for (i = 0; i < cred->num_roaming_consortiums; i++) {
3744 			if (i > 0)
3745 				*pos++ = ',';
3746 			pos += wpa_snprintf_hex(
3747 				pos, buf + buflen - pos,
3748 				cred->roaming_consortiums[i],
3749 				cred->roaming_consortiums_len[i]);
3750 		}
3751 		*pos = '\0';
3752 		return buf;
3753 	}
3754 
3755 	if (os_strcmp(var, "excluded_ssid") == 0) {
3756 		unsigned int i;
3757 		char *buf, *end, *pos;
3758 
3759 		if (!cred->num_excluded_ssid)
3760 			return NULL;
3761 
3762 		buf = os_malloc(4000);
3763 		if (buf == NULL)
3764 			return NULL;
3765 		pos = buf;
3766 		end = pos + 4000;
3767 
3768 		for (i = 0; i < cred->num_excluded_ssid; i++) {
3769 			struct excluded_ssid *e;
3770 			int ret;
3771 
3772 			e = &cred->excluded_ssid[i];
3773 			ret = os_snprintf(pos, end - pos, "%s%s",
3774 					  i > 0 ? "\n" : "",
3775 					  wpa_ssid_txt(e->ssid, e->ssid_len));
3776 			if (os_snprintf_error(end - pos, ret))
3777 				return buf;
3778 			pos += ret;
3779 		}
3780 
3781 		return buf;
3782 	}
3783 
3784 	if (os_strcmp(var, "roaming_partner") == 0) {
3785 		unsigned int i;
3786 		char *buf, *end, *pos;
3787 
3788 		if (!cred->num_roaming_partner)
3789 			return NULL;
3790 
3791 		buf = os_malloc(4000);
3792 		if (buf == NULL)
3793 			return NULL;
3794 		pos = buf;
3795 		end = pos + 4000;
3796 
3797 		for (i = 0; i < cred->num_roaming_partner; i++) {
3798 			struct roaming_partner *p;
3799 			int ret;
3800 
3801 			p = &cred->roaming_partner[i];
3802 			ret = os_snprintf(pos, end - pos, "%s%s,%d,%u,%s",
3803 					  i > 0 ? "\n" : "",
3804 					  p->fqdn, p->exact_match, p->priority,
3805 					  p->country);
3806 			if (os_snprintf_error(end - pos, ret))
3807 				return buf;
3808 			pos += ret;
3809 		}
3810 
3811 		return buf;
3812 	}
3813 
3814 	if (os_strcmp(var, "provisioning_sp") == 0)
3815 		return alloc_strdup(cred->provisioning_sp);
3816 
3817 	return NULL;
3818 }
3819 
3820 
3821 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
3822 {
3823 	struct wpa_cred *cred;
3824 
3825 	cred = config->cred;
3826 	while (cred) {
3827 		if (id == cred->id)
3828 			break;
3829 		cred = cred->next;
3830 	}
3831 
3832 	return cred;
3833 }
3834 
3835 
3836 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
3837 {
3838 	int id;
3839 	struct wpa_cred *cred, *last = NULL;
3840 
3841 	id = -1;
3842 	cred = config->cred;
3843 	while (cred) {
3844 		if (cred->id > id)
3845 			id = cred->id;
3846 		last = cred;
3847 		cred = cred->next;
3848 	}
3849 	id++;
3850 
3851 	cred = os_zalloc(sizeof(*cred));
3852 	if (cred == NULL)
3853 		return NULL;
3854 	cred->id = id;
3855 	cred->sim_num = DEFAULT_USER_SELECTED_SIM;
3856 	if (last)
3857 		last->next = cred;
3858 	else
3859 		config->cred = cred;
3860 
3861 	return cred;
3862 }
3863 
3864 
3865 int wpa_config_remove_cred(struct wpa_config *config, int id)
3866 {
3867 	struct wpa_cred *cred, *prev = NULL;
3868 
3869 	cred = config->cred;
3870 	while (cred) {
3871 		if (id == cred->id)
3872 			break;
3873 		prev = cred;
3874 		cred = cred->next;
3875 	}
3876 
3877 	if (cred == NULL)
3878 		return -1;
3879 
3880 	if (prev)
3881 		prev->next = cred->next;
3882 	else
3883 		config->cred = cred->next;
3884 
3885 	wpa_config_free_cred(cred);
3886 	return 0;
3887 }
3888 
3889 
3890 #ifndef CONFIG_NO_CONFIG_BLOBS
3891 /**
3892  * wpa_config_get_blob - Get a named configuration blob
3893  * @config: Configuration data from wpa_config_read()
3894  * @name: Name of the blob
3895  * Returns: Pointer to blob data or %NULL if not found
3896  */
3897 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
3898 						   const char *name)
3899 {
3900 	struct wpa_config_blob *blob = config->blobs;
3901 
3902 	while (blob) {
3903 		if (os_strcmp(blob->name, name) == 0)
3904 			return blob;
3905 		blob = blob->next;
3906 	}
3907 	return NULL;
3908 }
3909 
3910 
3911 /**
3912  * wpa_config_set_blob - Set or add a named configuration blob
3913  * @config: Configuration data from wpa_config_read()
3914  * @blob: New value for the blob
3915  *
3916  * Adds a new configuration blob or replaces the current value of an existing
3917  * blob.
3918  */
3919 void wpa_config_set_blob(struct wpa_config *config,
3920 			 struct wpa_config_blob *blob)
3921 {
3922 	wpa_config_remove_blob(config, blob->name);
3923 	blob->next = config->blobs;
3924 	config->blobs = blob;
3925 }
3926 
3927 
3928 /**
3929  * wpa_config_free_blob - Free blob data
3930  * @blob: Pointer to blob to be freed
3931  */
3932 void wpa_config_free_blob(struct wpa_config_blob *blob)
3933 {
3934 	if (blob) {
3935 		os_free(blob->name);
3936 		bin_clear_free(blob->data, blob->len);
3937 		os_free(blob);
3938 	}
3939 }
3940 
3941 
3942 /**
3943  * wpa_config_remove_blob - Remove a named configuration blob
3944  * @config: Configuration data from wpa_config_read()
3945  * @name: Name of the blob to remove
3946  * Returns: 0 if blob was removed or -1 if blob was not found
3947  */
3948 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
3949 {
3950 	struct wpa_config_blob *pos = config->blobs, *prev = NULL;
3951 
3952 	while (pos) {
3953 		if (os_strcmp(pos->name, name) == 0) {
3954 			if (prev)
3955 				prev->next = pos->next;
3956 			else
3957 				config->blobs = pos->next;
3958 			wpa_config_free_blob(pos);
3959 			return 0;
3960 		}
3961 		prev = pos;
3962 		pos = pos->next;
3963 	}
3964 
3965 	return -1;
3966 }
3967 #endif /* CONFIG_NO_CONFIG_BLOBS */
3968 
3969 
3970 /**
3971  * wpa_config_alloc_empty - Allocate an empty configuration
3972  * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
3973  * socket
3974  * @driver_param: Driver parameters
3975  * Returns: Pointer to allocated configuration data or %NULL on failure
3976  */
3977 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
3978 					   const char *driver_param)
3979 {
3980 	struct wpa_config *config;
3981 	const int aCWmin = 4, aCWmax = 10;
3982 	const struct hostapd_wmm_ac_params ac_bk =
3983 		{ aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
3984 	const struct hostapd_wmm_ac_params ac_be =
3985 		{ aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
3986 	const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
3987 		{ aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
3988 	const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
3989 		{ aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
3990 
3991 	config = os_zalloc(sizeof(*config));
3992 	if (config == NULL)
3993 		return NULL;
3994 	config->eapol_version = DEFAULT_EAPOL_VERSION;
3995 	config->ap_scan = DEFAULT_AP_SCAN;
3996 	config->user_mpm = DEFAULT_USER_MPM;
3997 	config->max_peer_links = DEFAULT_MAX_PEER_LINKS;
3998 	config->mesh_max_inactivity = DEFAULT_MESH_MAX_INACTIVITY;
3999 	config->dot11RSNASAERetransPeriod =
4000 		DEFAULT_DOT11_RSNA_SAE_RETRANS_PERIOD;
4001 	config->fast_reauth = DEFAULT_FAST_REAUTH;
4002 	config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
4003 	config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
4004 	config->p2p_go_freq_change_policy = DEFAULT_P2P_GO_FREQ_MOVE;
4005 	config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
4006 	config->p2p_optimize_listen_chan = DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN;
4007 	config->p2p_go_ctwindow = DEFAULT_P2P_GO_CTWINDOW;
4008 	config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
4009 	config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
4010 	config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
4011 	config->max_num_sta = DEFAULT_MAX_NUM_STA;
4012 	config->ap_isolate = DEFAULT_AP_ISOLATE;
4013 	config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
4014 	config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
4015 	config->wmm_ac_params[0] = ac_be;
4016 	config->wmm_ac_params[1] = ac_bk;
4017 	config->wmm_ac_params[2] = ac_vi;
4018 	config->wmm_ac_params[3] = ac_vo;
4019 	config->p2p_search_delay = DEFAULT_P2P_SEARCH_DELAY;
4020 	config->rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
4021 	config->key_mgmt_offload = DEFAULT_KEY_MGMT_OFFLOAD;
4022 	config->cert_in_cb = DEFAULT_CERT_IN_CB;
4023 	config->wpa_rsc_relaxation = DEFAULT_WPA_RSC_RELAXATION;
4024 
4025 #ifdef CONFIG_MBO
4026 	config->mbo_cell_capa = DEFAULT_MBO_CELL_CAPA;
4027 	config->disassoc_imminent_rssi_threshold =
4028 		DEFAULT_DISASSOC_IMMINENT_RSSI_THRESHOLD;
4029 	config->oce = DEFAULT_OCE_SUPPORT;
4030 #endif /* CONFIG_MBO */
4031 
4032 	if (ctrl_interface)
4033 		config->ctrl_interface = os_strdup(ctrl_interface);
4034 	if (driver_param)
4035 		config->driver_param = os_strdup(driver_param);
4036 	config->gas_rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
4037 
4038 	return config;
4039 }
4040 
4041 
4042 #ifndef CONFIG_NO_STDOUT_DEBUG
4043 /**
4044  * wpa_config_debug_dump_networks - Debug dump of configured networks
4045  * @config: Configuration data from wpa_config_read()
4046  */
4047 void wpa_config_debug_dump_networks(struct wpa_config *config)
4048 {
4049 	int prio;
4050 	struct wpa_ssid *ssid;
4051 
4052 	for (prio = 0; prio < config->num_prio; prio++) {
4053 		ssid = config->pssid[prio];
4054 		wpa_printf(MSG_DEBUG, "Priority group %d",
4055 			   ssid->priority);
4056 		while (ssid) {
4057 			wpa_printf(MSG_DEBUG, "   id=%d ssid='%s'",
4058 				   ssid->id,
4059 				   wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
4060 			ssid = ssid->pnext;
4061 		}
4062 	}
4063 }
4064 #endif /* CONFIG_NO_STDOUT_DEBUG */
4065 
4066 
4067 struct global_parse_data {
4068 	char *name;
4069 	int (*parser)(const struct global_parse_data *data,
4070 		      struct wpa_config *config, int line, const char *value);
4071 	int (*get)(const char *name, struct wpa_config *config, long offset,
4072 		   char *buf, size_t buflen, int pretty_print);
4073 	void *param1, *param2, *param3;
4074 	unsigned int changed_flag;
4075 };
4076 
4077 
4078 static int wpa_global_config_parse_int(const struct global_parse_data *data,
4079 				       struct wpa_config *config, int line,
4080 				       const char *pos)
4081 {
4082 	int val, *dst;
4083 	char *end;
4084 
4085 	dst = (int *) (((u8 *) config) + (long) data->param1);
4086 	val = strtol(pos, &end, 0);
4087 	if (*end) {
4088 		wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
4089 			   line, pos);
4090 		return -1;
4091 	}
4092 	*dst = val;
4093 
4094 	wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
4095 
4096 	if (data->param2 && *dst < (long) data->param2) {
4097 		wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
4098 			   "min_value=%ld)", line, data->name, *dst,
4099 			   (long) data->param2);
4100 		*dst = (long) data->param2;
4101 		return -1;
4102 	}
4103 
4104 	if (data->param3 && *dst > (long) data->param3) {
4105 		wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
4106 			   "max_value=%ld)", line, data->name, *dst,
4107 			   (long) data->param3);
4108 		*dst = (long) data->param3;
4109 		return -1;
4110 	}
4111 
4112 	return 0;
4113 }
4114 
4115 
4116 static int wpa_global_config_parse_str(const struct global_parse_data *data,
4117 				       struct wpa_config *config, int line,
4118 				       const char *pos)
4119 {
4120 	size_t len;
4121 	char **dst, *tmp;
4122 
4123 	len = os_strlen(pos);
4124 	if (data->param2 && len < (size_t) data->param2) {
4125 		wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
4126 			   "min_len=%ld)", line, data->name,
4127 			   (unsigned long) len, (long) data->param2);
4128 		return -1;
4129 	}
4130 
4131 	if (data->param3 && len > (size_t) data->param3) {
4132 		wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
4133 			   "max_len=%ld)", line, data->name,
4134 			   (unsigned long) len, (long) data->param3);
4135 		return -1;
4136 	}
4137 
4138 	if (has_newline(pos)) {
4139 		wpa_printf(MSG_ERROR, "Line %d: invalid %s value with newline",
4140 			   line, data->name);
4141 		return -1;
4142 	}
4143 
4144 	tmp = os_strdup(pos);
4145 	if (tmp == NULL)
4146 		return -1;
4147 
4148 	dst = (char **) (((u8 *) config) + (long) data->param1);
4149 	os_free(*dst);
4150 	*dst = tmp;
4151 	wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
4152 
4153 	return 0;
4154 }
4155 
4156 
4157 static int wpa_config_process_bgscan(const struct global_parse_data *data,
4158 				     struct wpa_config *config, int line,
4159 				     const char *pos)
4160 {
4161 	size_t len;
4162 	char *tmp;
4163 	int res;
4164 
4165 	tmp = wpa_config_parse_string(pos, &len);
4166 	if (tmp == NULL) {
4167 		wpa_printf(MSG_ERROR, "Line %d: failed to parse %s",
4168 			   line, data->name);
4169 		return -1;
4170 	}
4171 
4172 	res = wpa_global_config_parse_str(data, config, line, tmp);
4173 	os_free(tmp);
4174 	return res;
4175 }
4176 
4177 
4178 static int wpa_global_config_parse_bin(const struct global_parse_data *data,
4179 				       struct wpa_config *config, int line,
4180 				       const char *pos)
4181 {
4182 	struct wpabuf **dst, *tmp;
4183 
4184 	tmp = wpabuf_parse_bin(pos);
4185 	if (!tmp)
4186 		return -1;
4187 
4188 	dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
4189 	wpabuf_free(*dst);
4190 	*dst = tmp;
4191 	wpa_printf(MSG_DEBUG, "%s", data->name);
4192 
4193 	return 0;
4194 }
4195 
4196 
4197 static int wpa_config_process_freq_list(const struct global_parse_data *data,
4198 					struct wpa_config *config, int line,
4199 					const char *value)
4200 {
4201 	int *freqs;
4202 
4203 	freqs = wpa_config_parse_int_array(value);
4204 	if (freqs == NULL)
4205 		return -1;
4206 	if (freqs[0] == 0) {
4207 		os_free(freqs);
4208 		freqs = NULL;
4209 	}
4210 	os_free(config->freq_list);
4211 	config->freq_list = freqs;
4212 	return 0;
4213 }
4214 
4215 
4216 #ifdef CONFIG_P2P
4217 static int wpa_global_config_parse_ipv4(const struct global_parse_data *data,
4218 					struct wpa_config *config, int line,
4219 					const char *pos)
4220 {
4221 	u32 *dst;
4222 	struct hostapd_ip_addr addr;
4223 
4224 	if (hostapd_parse_ip_addr(pos, &addr) < 0)
4225 		return -1;
4226 	if (addr.af != AF_INET)
4227 		return -1;
4228 
4229 	dst = (u32 *) (((u8 *) config) + (long) data->param1);
4230 	os_memcpy(dst, &addr.u.v4.s_addr, 4);
4231 	wpa_printf(MSG_DEBUG, "%s = 0x%x", data->name,
4232 		   WPA_GET_BE32((u8 *) dst));
4233 
4234 	return 0;
4235 }
4236 #endif /* CONFIG_P2P */
4237 
4238 
4239 static int wpa_config_process_country(const struct global_parse_data *data,
4240 				      struct wpa_config *config, int line,
4241 				      const char *pos)
4242 {
4243 	if (!pos[0] || !pos[1]) {
4244 		wpa_printf(MSG_DEBUG, "Invalid country set");
4245 		return -1;
4246 	}
4247 	config->country[0] = pos[0];
4248 	config->country[1] = pos[1];
4249 	wpa_printf(MSG_DEBUG, "country='%c%c'",
4250 		   config->country[0], config->country[1]);
4251 	return 0;
4252 }
4253 
4254 
4255 static int wpa_config_process_load_dynamic_eap(
4256 	const struct global_parse_data *data, struct wpa_config *config,
4257 	int line, const char *so)
4258 {
4259 	int ret;
4260 	wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
4261 	ret = eap_peer_method_load(so);
4262 	if (ret == -2) {
4263 		wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
4264 			   "reloading.");
4265 	} else if (ret) {
4266 		wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
4267 			   "method '%s'.", line, so);
4268 		return -1;
4269 	}
4270 
4271 	return 0;
4272 }
4273 
4274 
4275 #ifdef CONFIG_WPS
4276 
4277 static int wpa_config_process_uuid(const struct global_parse_data *data,
4278 				   struct wpa_config *config, int line,
4279 				   const char *pos)
4280 {
4281 	char buf[40];
4282 	if (uuid_str2bin(pos, config->uuid)) {
4283 		wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
4284 		return -1;
4285 	}
4286 	uuid_bin2str(config->uuid, buf, sizeof(buf));
4287 	wpa_printf(MSG_DEBUG, "uuid=%s", buf);
4288 	return 0;
4289 }
4290 
4291 
4292 static int wpa_config_process_device_type(
4293 	const struct global_parse_data *data,
4294 	struct wpa_config *config, int line, const char *pos)
4295 {
4296 	return wps_dev_type_str2bin(pos, config->device_type);
4297 }
4298 
4299 
4300 static int wpa_config_process_os_version(const struct global_parse_data *data,
4301 					 struct wpa_config *config, int line,
4302 					 const char *pos)
4303 {
4304 	if (hexstr2bin(pos, config->os_version, 4)) {
4305 		wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
4306 		return -1;
4307 	}
4308 	wpa_printf(MSG_DEBUG, "os_version=%08x",
4309 		   WPA_GET_BE32(config->os_version));
4310 	return 0;
4311 }
4312 
4313 
4314 static int wpa_config_process_wps_vendor_ext_m1(
4315 	const struct global_parse_data *data,
4316 	struct wpa_config *config, int line, const char *pos)
4317 {
4318 	struct wpabuf *tmp;
4319 	int len = os_strlen(pos) / 2;
4320 	u8 *p;
4321 
4322 	if (!len) {
4323 		wpa_printf(MSG_ERROR, "Line %d: "
4324 			   "invalid wps_vendor_ext_m1", line);
4325 		return -1;
4326 	}
4327 
4328 	tmp = wpabuf_alloc(len);
4329 	if (tmp) {
4330 		p = wpabuf_put(tmp, len);
4331 
4332 		if (hexstr2bin(pos, p, len)) {
4333 			wpa_printf(MSG_ERROR, "Line %d: "
4334 				   "invalid wps_vendor_ext_m1", line);
4335 			wpabuf_free(tmp);
4336 			return -1;
4337 		}
4338 
4339 		wpabuf_free(config->wps_vendor_ext_m1);
4340 		config->wps_vendor_ext_m1 = tmp;
4341 	} else {
4342 		wpa_printf(MSG_ERROR, "Can not allocate "
4343 			   "memory for wps_vendor_ext_m1");
4344 		return -1;
4345 	}
4346 
4347 	return 0;
4348 }
4349 
4350 #endif /* CONFIG_WPS */
4351 
4352 #ifdef CONFIG_P2P
4353 static int wpa_config_process_sec_device_type(
4354 	const struct global_parse_data *data,
4355 	struct wpa_config *config, int line, const char *pos)
4356 {
4357 	int idx;
4358 
4359 	if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
4360 		wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
4361 			   "items", line);
4362 		return -1;
4363 	}
4364 
4365 	idx = config->num_sec_device_types;
4366 
4367 	if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
4368 		return -1;
4369 
4370 	config->num_sec_device_types++;
4371 	return 0;
4372 }
4373 
4374 
4375 static int wpa_config_process_p2p_pref_chan(
4376 	const struct global_parse_data *data,
4377 	struct wpa_config *config, int line, const char *pos)
4378 {
4379 	struct p2p_channel *pref = NULL, *n;
4380 	unsigned int num = 0;
4381 	const char *pos2;
4382 	u8 op_class, chan;
4383 
4384 	/* format: class:chan,class:chan,... */
4385 
4386 	while (*pos) {
4387 		op_class = atoi(pos);
4388 		pos2 = os_strchr(pos, ':');
4389 		if (pos2 == NULL)
4390 			goto fail;
4391 		pos2++;
4392 		chan = atoi(pos2);
4393 
4394 		n = os_realloc_array(pref, num + 1,
4395 				     sizeof(struct p2p_channel));
4396 		if (n == NULL)
4397 			goto fail;
4398 		pref = n;
4399 		pref[num].op_class = op_class;
4400 		pref[num].chan = chan;
4401 		num++;
4402 
4403 		pos = os_strchr(pos2, ',');
4404 		if (pos == NULL)
4405 			break;
4406 		pos++;
4407 	}
4408 
4409 	os_free(config->p2p_pref_chan);
4410 	config->p2p_pref_chan = pref;
4411 	config->num_p2p_pref_chan = num;
4412 	wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
4413 		    (u8 *) config->p2p_pref_chan,
4414 		    config->num_p2p_pref_chan * sizeof(struct p2p_channel));
4415 
4416 	return 0;
4417 
4418 fail:
4419 	os_free(pref);
4420 	wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
4421 	return -1;
4422 }
4423 
4424 
4425 static int wpa_config_process_p2p_no_go_freq(
4426 	const struct global_parse_data *data,
4427 	struct wpa_config *config, int line, const char *pos)
4428 {
4429 	int ret;
4430 
4431 	ret = freq_range_list_parse(&config->p2p_no_go_freq, pos);
4432 	if (ret < 0) {
4433 		wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_no_go_freq", line);
4434 		return -1;
4435 	}
4436 
4437 	wpa_printf(MSG_DEBUG, "P2P: p2p_no_go_freq with %u items",
4438 		   config->p2p_no_go_freq.num);
4439 
4440 	return 0;
4441 }
4442 
4443 #endif /* CONFIG_P2P */
4444 
4445 
4446 static int wpa_config_process_hessid(
4447 	const struct global_parse_data *data,
4448 	struct wpa_config *config, int line, const char *pos)
4449 {
4450 	if (hwaddr_aton2(pos, config->hessid) < 0) {
4451 		wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
4452 			   line, pos);
4453 		return -1;
4454 	}
4455 
4456 	return 0;
4457 }
4458 
4459 
4460 static int wpa_config_process_sae_groups(
4461 	const struct global_parse_data *data,
4462 	struct wpa_config *config, int line, const char *pos)
4463 {
4464 	int *groups = wpa_config_parse_int_array(pos);
4465 	if (groups == NULL) {
4466 		wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
4467 			   line, pos);
4468 		return -1;
4469 	}
4470 
4471 	os_free(config->sae_groups);
4472 	config->sae_groups = groups;
4473 
4474 	return 0;
4475 }
4476 
4477 
4478 static int wpa_config_process_ap_vendor_elements(
4479 	const struct global_parse_data *data,
4480 	struct wpa_config *config, int line, const char *pos)
4481 {
4482 	struct wpabuf *tmp;
4483 	int len = os_strlen(pos) / 2;
4484 	u8 *p;
4485 
4486 	if (!len) {
4487 		wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
4488 			   line);
4489 		return -1;
4490 	}
4491 
4492 	tmp = wpabuf_alloc(len);
4493 	if (tmp) {
4494 		p = wpabuf_put(tmp, len);
4495 
4496 		if (hexstr2bin(pos, p, len)) {
4497 			wpa_printf(MSG_ERROR, "Line %d: invalid "
4498 				   "ap_vendor_elements", line);
4499 			wpabuf_free(tmp);
4500 			return -1;
4501 		}
4502 
4503 		wpabuf_free(config->ap_vendor_elements);
4504 		config->ap_vendor_elements = tmp;
4505 	} else {
4506 		wpa_printf(MSG_ERROR, "Cannot allocate memory for "
4507 			   "ap_vendor_elements");
4508 		return -1;
4509 	}
4510 
4511 	return 0;
4512 }
4513 
4514 
4515 #ifdef CONFIG_CTRL_IFACE
4516 static int wpa_config_process_no_ctrl_interface(
4517 	const struct global_parse_data *data,
4518 	struct wpa_config *config, int line, const char *pos)
4519 {
4520 	wpa_printf(MSG_DEBUG, "no_ctrl_interface -> ctrl_interface=NULL");
4521 	os_free(config->ctrl_interface);
4522 	config->ctrl_interface = NULL;
4523 	return 0;
4524 }
4525 #endif /* CONFIG_CTRL_IFACE */
4526 
4527 
4528 static int wpa_config_get_int(const char *name, struct wpa_config *config,
4529 			      long offset, char *buf, size_t buflen,
4530 			      int pretty_print)
4531 {
4532 	int *val = (int *) (((u8 *) config) + (long) offset);
4533 
4534 	if (pretty_print)
4535 		return os_snprintf(buf, buflen, "%s=%d\n", name, *val);
4536 	return os_snprintf(buf, buflen, "%d", *val);
4537 }
4538 
4539 
4540 static int wpa_config_get_str(const char *name, struct wpa_config *config,
4541 			      long offset, char *buf, size_t buflen,
4542 			      int pretty_print)
4543 {
4544 	char **val = (char **) (((u8 *) config) + (long) offset);
4545 	int res;
4546 
4547 	if (pretty_print)
4548 		res = os_snprintf(buf, buflen, "%s=%s\n", name,
4549 				  *val ? *val : "null");
4550 	else if (!*val)
4551 		return -1;
4552 	else
4553 		res = os_snprintf(buf, buflen, "%s", *val);
4554 	if (os_snprintf_error(buflen, res))
4555 		res = -1;
4556 
4557 	return res;
4558 }
4559 
4560 
4561 #ifdef CONFIG_P2P
4562 static int wpa_config_get_ipv4(const char *name, struct wpa_config *config,
4563 			       long offset, char *buf, size_t buflen,
4564 			       int pretty_print)
4565 {
4566 	void *val = ((u8 *) config) + (long) offset;
4567 	int res;
4568 	char addr[INET_ADDRSTRLEN];
4569 
4570 	if (!val || !inet_ntop(AF_INET, val, addr, sizeof(addr)))
4571 		return -1;
4572 
4573 	if (pretty_print)
4574 		res = os_snprintf(buf, buflen, "%s=%s\n", name, addr);
4575 	else
4576 		res = os_snprintf(buf, buflen, "%s", addr);
4577 
4578 	if (os_snprintf_error(buflen, res))
4579 		res = -1;
4580 
4581 	return res;
4582 }
4583 #endif /* CONFIG_P2P */
4584 
4585 
4586 #ifdef OFFSET
4587 #undef OFFSET
4588 #endif /* OFFSET */
4589 /* OFFSET: Get offset of a variable within the wpa_config structure */
4590 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
4591 
4592 #define FUNC(f) #f, wpa_config_process_ ## f, NULL, OFFSET(f), NULL, NULL
4593 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL, NULL
4594 #define _INT(f) #f, wpa_global_config_parse_int, wpa_config_get_int, OFFSET(f)
4595 #define INT(f) _INT(f), NULL, NULL
4596 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
4597 #define _STR(f) #f, wpa_global_config_parse_str, wpa_config_get_str, OFFSET(f)
4598 #define STR(f) _STR(f), NULL, NULL
4599 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
4600 #define BIN(f) #f, wpa_global_config_parse_bin, NULL, OFFSET(f), NULL, NULL
4601 #define IPV4(f) #f, wpa_global_config_parse_ipv4, wpa_config_get_ipv4,  \
4602 	OFFSET(f), NULL, NULL
4603 
4604 static const struct global_parse_data global_fields[] = {
4605 #ifdef CONFIG_CTRL_IFACE
4606 	{ STR(ctrl_interface), 0 },
4607 	{ FUNC_NO_VAR(no_ctrl_interface), 0 },
4608 	{ STR(ctrl_interface_group), 0 } /* deprecated */,
4609 #endif /* CONFIG_CTRL_IFACE */
4610 #ifdef CONFIG_MACSEC
4611 	{ INT_RANGE(eapol_version, 1, 3), 0 },
4612 #else /* CONFIG_MACSEC */
4613 	{ INT_RANGE(eapol_version, 1, 2), 0 },
4614 #endif /* CONFIG_MACSEC */
4615 	{ INT(ap_scan), 0 },
4616 	{ FUNC(bgscan), 0 },
4617 #ifdef CONFIG_MESH
4618 	{ INT(user_mpm), 0 },
4619 	{ INT_RANGE(max_peer_links, 0, 255), 0 },
4620 	{ INT(mesh_max_inactivity), 0 },
4621 	{ INT(dot11RSNASAERetransPeriod), 0 },
4622 #endif /* CONFIG_MESH */
4623 	{ INT(disable_scan_offload), 0 },
4624 	{ INT(fast_reauth), 0 },
4625 	{ STR(opensc_engine_path), 0 },
4626 	{ STR(pkcs11_engine_path), 0 },
4627 	{ STR(pkcs11_module_path), 0 },
4628 	{ STR(openssl_ciphers), 0 },
4629 	{ STR(pcsc_reader), 0 },
4630 	{ STR(pcsc_pin), 0 },
4631 	{ INT(external_sim), 0 },
4632 	{ STR(driver_param), 0 },
4633 	{ INT(dot11RSNAConfigPMKLifetime), 0 },
4634 	{ INT(dot11RSNAConfigPMKReauthThreshold), 0 },
4635 	{ INT(dot11RSNAConfigSATimeout), 0 },
4636 #ifndef CONFIG_NO_CONFIG_WRITE
4637 	{ INT(update_config), 0 },
4638 #endif /* CONFIG_NO_CONFIG_WRITE */
4639 	{ FUNC_NO_VAR(load_dynamic_eap), 0 },
4640 #ifdef CONFIG_WPS
4641 	{ FUNC(uuid), CFG_CHANGED_UUID },
4642 	{ INT_RANGE(auto_uuid, 0, 1), 0 },
4643 	{ STR_RANGE(device_name, 0, WPS_DEV_NAME_MAX_LEN),
4644 	  CFG_CHANGED_DEVICE_NAME },
4645 	{ STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
4646 	{ STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
4647 	{ STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
4648 	{ STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
4649 	{ FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
4650 	{ FUNC(os_version), CFG_CHANGED_OS_VERSION },
4651 	{ STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
4652 	{ INT_RANGE(wps_cred_processing, 0, 2), 0 },
4653 	{ FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
4654 #endif /* CONFIG_WPS */
4655 #ifdef CONFIG_P2P
4656 	{ FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
4657 	{ INT(p2p_listen_reg_class), CFG_CHANGED_P2P_LISTEN_CHANNEL },
4658 	{ INT(p2p_listen_channel), CFG_CHANGED_P2P_LISTEN_CHANNEL },
4659 	{ INT(p2p_oper_reg_class), CFG_CHANGED_P2P_OPER_CHANNEL },
4660 	{ INT(p2p_oper_channel), CFG_CHANGED_P2P_OPER_CHANNEL },
4661 	{ INT_RANGE(p2p_go_intent, 0, 15), 0 },
4662 	{ STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
4663 	{ INT_RANGE(persistent_reconnect, 0, 1), 0 },
4664 	{ INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
4665 	{ INT(p2p_group_idle), 0 },
4666 	{ INT_RANGE(p2p_go_freq_change_policy, 0, P2P_GO_FREQ_MOVE_MAX), 0 },
4667 	{ INT_RANGE(p2p_passphrase_len, 8, 63),
4668 	  CFG_CHANGED_P2P_PASSPHRASE_LEN },
4669 	{ FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
4670 	{ FUNC(p2p_no_go_freq), CFG_CHANGED_P2P_PREF_CHAN },
4671 	{ INT_RANGE(p2p_add_cli_chan, 0, 1), 0 },
4672 	{ INT_RANGE(p2p_optimize_listen_chan, 0, 1), 0 },
4673 	{ INT(p2p_go_ht40), 0 },
4674 	{ INT(p2p_go_vht), 0 },
4675 	{ INT(p2p_disabled), 0 },
4676 	{ INT_RANGE(p2p_go_ctwindow, 0, 127), 0 },
4677 	{ INT(p2p_no_group_iface), 0 },
4678 	{ INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
4679 	{ IPV4(ip_addr_go), 0 },
4680 	{ IPV4(ip_addr_mask), 0 },
4681 	{ IPV4(ip_addr_start), 0 },
4682 	{ IPV4(ip_addr_end), 0 },
4683 	{ INT_RANGE(p2p_cli_probe, 0, 1), 0 },
4684 #endif /* CONFIG_P2P */
4685 	{ FUNC(country), CFG_CHANGED_COUNTRY },
4686 	{ INT(bss_max_count), 0 },
4687 	{ INT(bss_expiration_age), 0 },
4688 	{ INT(bss_expiration_scan_count), 0 },
4689 	{ INT_RANGE(filter_ssids, 0, 1), 0 },
4690 	{ INT_RANGE(filter_rssi, -100, 0), 0 },
4691 	{ INT(max_num_sta), 0 },
4692 	{ INT_RANGE(ap_isolate, 0, 1), 0 },
4693 	{ INT_RANGE(disassoc_low_ack, 0, 1), 0 },
4694 #ifdef CONFIG_HS20
4695 	{ INT_RANGE(hs20, 0, 1), 0 },
4696 #endif /* CONFIG_HS20 */
4697 	{ INT_RANGE(interworking, 0, 1), 0 },
4698 	{ FUNC(hessid), 0 },
4699 	{ INT_RANGE(access_network_type, 0, 15), 0 },
4700 	{ INT_RANGE(go_interworking, 0, 1), 0 },
4701 	{ INT_RANGE(go_access_network_type, 0, 15), 0 },
4702 	{ INT_RANGE(go_internet, 0, 1), 0 },
4703 	{ INT_RANGE(go_venue_group, 0, 255), 0 },
4704 	{ INT_RANGE(go_venue_type, 0, 255), 0 },
4705 	{ INT_RANGE(pbc_in_m1, 0, 1), 0 },
4706 	{ STR(autoscan), 0 },
4707 	{ INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
4708 	  CFG_CHANGED_NFC_PASSWORD_TOKEN },
4709 	{ BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4710 	{ BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4711 	{ BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4712 	{ STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
4713 	{ INT(p2p_go_max_inactivity), 0 },
4714 	{ INT_RANGE(auto_interworking, 0, 1), 0 },
4715 	{ INT(okc), 0 },
4716 	{ INT(pmf), 0 },
4717 	{ FUNC(sae_groups), 0 },
4718 	{ INT(dtim_period), 0 },
4719 	{ INT(beacon_int), 0 },
4720 	{ FUNC(ap_vendor_elements), 0 },
4721 	{ INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
4722 	{ FUNC(freq_list), 0 },
4723 	{ INT(scan_cur_freq), 0 },
4724 	{ INT(sched_scan_interval), 0 },
4725 	{ INT(sched_scan_start_delay), 0 },
4726 	{ INT(tdls_external_control), 0},
4727 	{ STR(osu_dir), 0 },
4728 	{ STR(wowlan_triggers), CFG_CHANGED_WOWLAN_TRIGGERS },
4729 	{ INT(p2p_search_delay), 0},
4730 	{ INT(mac_addr), 0 },
4731 	{ INT(rand_addr_lifetime), 0 },
4732 	{ INT(preassoc_mac_addr), 0 },
4733 	{ INT(key_mgmt_offload), 0},
4734 	{ INT(passive_scan), 0 },
4735 	{ INT(reassoc_same_bss_optim), 0 },
4736 	{ INT(wps_priority), 0},
4737 #ifdef CONFIG_FST
4738 	{ STR_RANGE(fst_group_id, 1, FST_MAX_GROUP_ID_LEN), 0 },
4739 	{ INT_RANGE(fst_priority, 1, FST_MAX_PRIO_VALUE), 0 },
4740 	{ INT_RANGE(fst_llt, 1, FST_MAX_LLT_MS), 0 },
4741 #endif /* CONFIG_FST */
4742 	{ INT_RANGE(cert_in_cb, 0, 1), 0 },
4743 	{ INT_RANGE(wpa_rsc_relaxation, 0, 1), 0 },
4744 	{ STR(sched_scan_plans), CFG_CHANGED_SCHED_SCAN_PLANS },
4745 #ifdef CONFIG_MBO
4746 	{ STR(non_pref_chan), 0 },
4747 	{ INT_RANGE(mbo_cell_capa, MBO_CELL_CAPA_AVAILABLE,
4748 		    MBO_CELL_CAPA_NOT_SUPPORTED), 0 },
4749 	{ INT_RANGE(disassoc_imminent_rssi_threshold, -120, 0), 0 },
4750 	{ INT_RANGE(oce, 0, 3), 0 },
4751 #endif /* CONFIG_MBO */
4752 	{ INT(gas_address3), 0 },
4753 	{ INT_RANGE(ftm_responder, 0, 1), 0 },
4754 	{ INT_RANGE(ftm_initiator, 0, 1), 0 },
4755 	{ INT(gas_rand_addr_lifetime), 0 },
4756 	{ INT_RANGE(gas_rand_mac_addr, 0, 2), 0 },
4757 	{ INT_RANGE(dpp_config_processing, 0, 2), 0 },
4758 	{ INT_RANGE(coloc_intf_reporting, 0, 1), 0 },
4759 };
4760 
4761 #undef FUNC
4762 #undef _INT
4763 #undef INT
4764 #undef INT_RANGE
4765 #undef _STR
4766 #undef STR
4767 #undef STR_RANGE
4768 #undef BIN
4769 #undef IPV4
4770 #define NUM_GLOBAL_FIELDS ARRAY_SIZE(global_fields)
4771 
4772 
4773 int wpa_config_dump_values(struct wpa_config *config, char *buf, size_t buflen)
4774 {
4775 	int result = 0;
4776 	size_t i;
4777 
4778 	for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4779 		const struct global_parse_data *field = &global_fields[i];
4780 		int tmp;
4781 
4782 		if (!field->get)
4783 			continue;
4784 
4785 		tmp = field->get(field->name, config, (long) field->param1,
4786 				 buf, buflen, 1);
4787 		if (tmp < 0)
4788 			return -1;
4789 		buf += tmp;
4790 		buflen -= tmp;
4791 		result += tmp;
4792 	}
4793 	return result;
4794 }
4795 
4796 
4797 int wpa_config_get_value(const char *name, struct wpa_config *config,
4798 			 char *buf, size_t buflen)
4799 {
4800 	size_t i;
4801 
4802 	for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4803 		const struct global_parse_data *field = &global_fields[i];
4804 
4805 		if (os_strcmp(name, field->name) != 0)
4806 			continue;
4807 		if (!field->get)
4808 			break;
4809 		return field->get(name, config, (long) field->param1,
4810 				  buf, buflen, 0);
4811 	}
4812 
4813 	return -1;
4814 }
4815 
4816 
4817 int wpa_config_get_num_global_field_names(void)
4818 {
4819 	return NUM_GLOBAL_FIELDS;
4820 }
4821 
4822 
4823 const char * wpa_config_get_global_field_name(unsigned int i, int *no_var)
4824 {
4825 	if (i >= NUM_GLOBAL_FIELDS)
4826 		return NULL;
4827 
4828 	if (no_var)
4829 		*no_var = !global_fields[i].param1;
4830 	return global_fields[i].name;
4831 }
4832 
4833 
4834 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
4835 {
4836 	size_t i;
4837 	int ret = 0;
4838 
4839 	for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4840 		const struct global_parse_data *field = &global_fields[i];
4841 		size_t flen = os_strlen(field->name);
4842 		if (os_strncmp(pos, field->name, flen) != 0 ||
4843 		    pos[flen] != '=')
4844 			continue;
4845 
4846 		if (field->parser(field, config, line, pos + flen + 1)) {
4847 			wpa_printf(MSG_ERROR, "Line %d: failed to "
4848 				   "parse '%s'.", line, pos);
4849 			ret = -1;
4850 		}
4851 		if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
4852 			config->wps_nfc_pw_from_config = 1;
4853 		config->changed_parameters |= field->changed_flag;
4854 		break;
4855 	}
4856 	if (i == NUM_GLOBAL_FIELDS) {
4857 #ifdef CONFIG_AP
4858 		if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
4859 			char *tmp = os_strchr(pos, '=');
4860 			if (tmp == NULL) {
4861 				if (line < 0)
4862 					return -1;
4863 				wpa_printf(MSG_ERROR, "Line %d: invalid line "
4864 					   "'%s'", line, pos);
4865 				return -1;
4866 			}
4867 			*tmp++ = '\0';
4868 			if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
4869 						  tmp)) {
4870 				wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
4871 					   "AC item", line);
4872 				return -1;
4873 			}
4874 		}
4875 #endif /* CONFIG_AP */
4876 		if (line < 0)
4877 			return -1;
4878 		wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
4879 			   line, pos);
4880 		ret = -1;
4881 	}
4882 
4883 	return ret;
4884 }
4885