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 
wpa_config_parse_str(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)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
wpa_config_write_string_ascii(const u8 * value,size_t len)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 
wpa_config_write_string_hex(const u8 * value,size_t len)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 
wpa_config_write_string(const u8 * value,size_t len)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 
wpa_config_write_str(const struct parse_data * data,struct wpa_ssid * ssid)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 
wpa_config_parse_int(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)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
wpa_config_write_int(const struct parse_data * data,struct wpa_ssid * ssid)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 
wpa_config_parse_addr_list(const struct parse_data * data,int line,const char * value,u8 ** list,size_t * num,char * name,u8 abort_on_error,u8 masked)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
wpa_config_write_addr_list(const struct parse_data * data,const u8 * list,size_t num,char * name)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 
wpa_config_parse_bssid(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)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
wpa_config_write_bssid(const struct parse_data * data,struct wpa_ssid * ssid)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 
wpa_config_parse_bssid_hint(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)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
wpa_config_write_bssid_hint(const struct parse_data * data,struct wpa_ssid * ssid)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 
wpa_config_parse_bssid_blacklist(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)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
wpa_config_write_bssid_blacklist(const struct parse_data * data,struct wpa_ssid * ssid)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 
wpa_config_parse_bssid_whitelist(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)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
wpa_config_write_bssid_whitelist(const struct parse_data * data,struct wpa_ssid * ssid)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 
wpa_config_parse_psk(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)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
wpa_config_write_psk(const struct parse_data * data,struct wpa_ssid * ssid)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 
wpa_config_parse_proto(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)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
wpa_config_write_proto(const struct parse_data * data,struct wpa_ssid * ssid)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 
wpa_config_parse_key_mgmt(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)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
wpa_config_write_key_mgmt(const struct parse_data * data,struct wpa_ssid * ssid)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 #ifdef CONFIG_DPP
1047 	if (ssid->key_mgmt & WPA_KEY_MGMT_DPP) {
1048 		ret = os_snprintf(pos, end - pos, "%sDPP",
1049 				  pos == buf ? "" : " ");
1050 		if (os_snprintf_error(end - pos, ret)) {
1051 			end[-1] = '\0';
1052 			return buf;
1053 		}
1054 		pos += ret;
1055 	}
1056 #endif /* CONFIG_DPP */
1057 
1058 #ifdef CONFIG_OWE
1059 	if (ssid->key_mgmt & WPA_KEY_MGMT_OWE) {
1060 		ret = os_snprintf(pos, end - pos, "%sOWE",
1061 				  pos == buf ? "" : " ");
1062 		if (os_snprintf_error(end - pos, ret)) {
1063 			end[-1] = '\0';
1064 			return buf;
1065 		}
1066 		pos += ret;
1067 	}
1068 #endif /* CONFIG_OWE */
1069 
1070 	if (pos == buf) {
1071 		os_free(buf);
1072 		buf = NULL;
1073 	}
1074 
1075 	return buf;
1076 }
1077 #endif /* NO_CONFIG_WRITE */
1078 
1079 
wpa_config_parse_cipher(int line,const char * value)1080 static int wpa_config_parse_cipher(int line, const char *value)
1081 {
1082 #ifdef CONFIG_NO_WPA
1083 	return -1;
1084 #else /* CONFIG_NO_WPA */
1085 	int val = wpa_parse_cipher(value);
1086 	if (val < 0) {
1087 		wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
1088 			   line, value);
1089 		return -1;
1090 	}
1091 	if (val == 0) {
1092 		wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
1093 			   line);
1094 		return -1;
1095 	}
1096 	return val;
1097 #endif /* CONFIG_NO_WPA */
1098 }
1099 
1100 
1101 #ifndef NO_CONFIG_WRITE
wpa_config_write_cipher(int cipher)1102 static char * wpa_config_write_cipher(int cipher)
1103 {
1104 #ifdef CONFIG_NO_WPA
1105 	return NULL;
1106 #else /* CONFIG_NO_WPA */
1107 	char *buf = os_zalloc(50);
1108 	if (buf == NULL)
1109 		return NULL;
1110 
1111 	if (wpa_write_ciphers(buf, buf + 50, cipher, " ") < 0) {
1112 		os_free(buf);
1113 		return NULL;
1114 	}
1115 
1116 	return buf;
1117 #endif /* CONFIG_NO_WPA */
1118 }
1119 #endif /* NO_CONFIG_WRITE */
1120 
1121 
wpa_config_parse_pairwise(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1122 static int wpa_config_parse_pairwise(const struct parse_data *data,
1123 				     struct wpa_ssid *ssid, int line,
1124 				     const char *value)
1125 {
1126 	int val;
1127 	val = wpa_config_parse_cipher(line, value);
1128 	if (val == -1)
1129 		return -1;
1130 	if (val & ~WPA_ALLOWED_PAIRWISE_CIPHERS) {
1131 		wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
1132 			   "(0x%x).", line, val);
1133 		return -1;
1134 	}
1135 
1136 	if (ssid->pairwise_cipher == val)
1137 		return 1;
1138 	wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
1139 	ssid->pairwise_cipher = val;
1140 	return 0;
1141 }
1142 
1143 
1144 #ifndef NO_CONFIG_WRITE
wpa_config_write_pairwise(const struct parse_data * data,struct wpa_ssid * ssid)1145 static char * wpa_config_write_pairwise(const struct parse_data *data,
1146 					struct wpa_ssid *ssid)
1147 {
1148 	return wpa_config_write_cipher(ssid->pairwise_cipher);
1149 }
1150 #endif /* NO_CONFIG_WRITE */
1151 
1152 
wpa_config_parse_group(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1153 static int wpa_config_parse_group(const struct parse_data *data,
1154 				  struct wpa_ssid *ssid, int line,
1155 				  const char *value)
1156 {
1157 	int val;
1158 	val = wpa_config_parse_cipher(line, value);
1159 	if (val == -1)
1160 		return -1;
1161 
1162 	/*
1163 	 * Backwards compatibility - filter out WEP ciphers that were previously
1164 	 * allowed.
1165 	 */
1166 	val &= ~(WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40);
1167 
1168 	if (val & ~WPA_ALLOWED_GROUP_CIPHERS) {
1169 		wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
1170 			   "(0x%x).", line, val);
1171 		return -1;
1172 	}
1173 
1174 	if (ssid->group_cipher == val)
1175 		return 1;
1176 	wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
1177 	ssid->group_cipher = val;
1178 	return 0;
1179 }
1180 
1181 
1182 #ifndef NO_CONFIG_WRITE
wpa_config_write_group(const struct parse_data * data,struct wpa_ssid * ssid)1183 static char * wpa_config_write_group(const struct parse_data *data,
1184 				     struct wpa_ssid *ssid)
1185 {
1186 	return wpa_config_write_cipher(ssid->group_cipher);
1187 }
1188 #endif /* NO_CONFIG_WRITE */
1189 
1190 
wpa_config_parse_group_mgmt(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1191 static int wpa_config_parse_group_mgmt(const struct parse_data *data,
1192 				       struct wpa_ssid *ssid, int line,
1193 				       const char *value)
1194 {
1195 	int val;
1196 
1197 	val = wpa_config_parse_cipher(line, value);
1198 	if (val == -1)
1199 		return -1;
1200 
1201 	if (val & ~WPA_ALLOWED_GROUP_MGMT_CIPHERS) {
1202 		wpa_printf(MSG_ERROR,
1203 			   "Line %d: not allowed group management cipher (0x%x).",
1204 			   line, val);
1205 		return -1;
1206 	}
1207 
1208 	if (ssid->group_mgmt_cipher == val)
1209 		return 1;
1210 	wpa_printf(MSG_MSGDUMP, "group_mgmt: 0x%x", val);
1211 	ssid->group_mgmt_cipher = val;
1212 	return 0;
1213 }
1214 
1215 
1216 #ifndef NO_CONFIG_WRITE
wpa_config_write_group_mgmt(const struct parse_data * data,struct wpa_ssid * ssid)1217 static char * wpa_config_write_group_mgmt(const struct parse_data *data,
1218 					  struct wpa_ssid *ssid)
1219 {
1220 	return wpa_config_write_cipher(ssid->group_mgmt_cipher);
1221 }
1222 #endif /* NO_CONFIG_WRITE */
1223 
1224 
wpa_config_parse_auth_alg(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1225 static int wpa_config_parse_auth_alg(const struct parse_data *data,
1226 				     struct wpa_ssid *ssid, int line,
1227 				     const char *value)
1228 {
1229 	int val = 0, last, errors = 0;
1230 	char *start, *end, *buf;
1231 
1232 	buf = os_strdup(value);
1233 	if (buf == NULL)
1234 		return -1;
1235 	start = buf;
1236 
1237 	while (*start != '\0') {
1238 		while (*start == ' ' || *start == '\t')
1239 			start++;
1240 		if (*start == '\0')
1241 			break;
1242 		end = start;
1243 		while (*end != ' ' && *end != '\t' && *end != '\0')
1244 			end++;
1245 		last = *end == '\0';
1246 		*end = '\0';
1247 		if (os_strcmp(start, "OPEN") == 0)
1248 			val |= WPA_AUTH_ALG_OPEN;
1249 		else if (os_strcmp(start, "SHARED") == 0)
1250 			val |= WPA_AUTH_ALG_SHARED;
1251 		else if (os_strcmp(start, "LEAP") == 0)
1252 			val |= WPA_AUTH_ALG_LEAP;
1253 		else {
1254 			wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
1255 				   line, start);
1256 			errors++;
1257 		}
1258 
1259 		if (last)
1260 			break;
1261 		start = end + 1;
1262 	}
1263 	os_free(buf);
1264 
1265 	if (val == 0) {
1266 		wpa_printf(MSG_ERROR,
1267 			   "Line %d: no auth_alg values configured.", line);
1268 		errors++;
1269 	}
1270 
1271 	if (!errors && ssid->auth_alg == val)
1272 		return 1;
1273 	wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
1274 	ssid->auth_alg = val;
1275 	return errors ? -1 : 0;
1276 }
1277 
1278 
1279 #ifndef NO_CONFIG_WRITE
wpa_config_write_auth_alg(const struct parse_data * data,struct wpa_ssid * ssid)1280 static char * wpa_config_write_auth_alg(const struct parse_data *data,
1281 					struct wpa_ssid *ssid)
1282 {
1283 	char *buf, *pos, *end;
1284 	int ret;
1285 
1286 	pos = buf = os_zalloc(30);
1287 	if (buf == NULL)
1288 		return NULL;
1289 	end = buf + 30;
1290 
1291 	if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) {
1292 		ret = os_snprintf(pos, end - pos, "%sOPEN",
1293 				  pos == buf ? "" : " ");
1294 		if (os_snprintf_error(end - pos, ret)) {
1295 			end[-1] = '\0';
1296 			return buf;
1297 		}
1298 		pos += ret;
1299 	}
1300 
1301 	if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) {
1302 		ret = os_snprintf(pos, end - pos, "%sSHARED",
1303 				  pos == buf ? "" : " ");
1304 		if (os_snprintf_error(end - pos, ret)) {
1305 			end[-1] = '\0';
1306 			return buf;
1307 		}
1308 		pos += ret;
1309 	}
1310 
1311 	if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) {
1312 		ret = os_snprintf(pos, end - pos, "%sLEAP",
1313 				  pos == buf ? "" : " ");
1314 		if (os_snprintf_error(end - pos, ret)) {
1315 			end[-1] = '\0';
1316 			return buf;
1317 		}
1318 		pos += ret;
1319 	}
1320 
1321 	if (pos == buf) {
1322 		os_free(buf);
1323 		buf = NULL;
1324 	}
1325 
1326 	return buf;
1327 }
1328 #endif /* NO_CONFIG_WRITE */
1329 
1330 
wpa_config_parse_int_array(const char * value)1331 static int * wpa_config_parse_int_array(const char *value)
1332 {
1333 	int *freqs;
1334 	size_t used, len;
1335 	const char *pos;
1336 
1337 	used = 0;
1338 	len = 10;
1339 	freqs = os_calloc(len + 1, sizeof(int));
1340 	if (freqs == NULL)
1341 		return NULL;
1342 
1343 	pos = value;
1344 	while (pos) {
1345 		while (*pos == ' ')
1346 			pos++;
1347 		if (used == len) {
1348 			int *n;
1349 			size_t i;
1350 			n = os_realloc_array(freqs, len * 2 + 1, sizeof(int));
1351 			if (n == NULL) {
1352 				os_free(freqs);
1353 				return NULL;
1354 			}
1355 			for (i = len; i <= len * 2; i++)
1356 				n[i] = 0;
1357 			freqs = n;
1358 			len *= 2;
1359 		}
1360 
1361 		freqs[used] = atoi(pos);
1362 		if (freqs[used] == 0)
1363 			break;
1364 		used++;
1365 		pos = os_strchr(pos + 1, ' ');
1366 	}
1367 
1368 	return freqs;
1369 }
1370 
1371 
wpa_config_parse_scan_freq(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1372 static int wpa_config_parse_scan_freq(const struct parse_data *data,
1373 				      struct wpa_ssid *ssid, int line,
1374 				      const char *value)
1375 {
1376 	int *freqs;
1377 
1378 	freqs = wpa_config_parse_int_array(value);
1379 	if (freqs == NULL)
1380 		return -1;
1381 	if (freqs[0] == 0) {
1382 		os_free(freqs);
1383 		freqs = NULL;
1384 	}
1385 	os_free(ssid->scan_freq);
1386 	ssid->scan_freq = freqs;
1387 
1388 	return 0;
1389 }
1390 
1391 
wpa_config_parse_freq_list(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1392 static int wpa_config_parse_freq_list(const struct parse_data *data,
1393 				      struct wpa_ssid *ssid, int line,
1394 				      const char *value)
1395 {
1396 	int *freqs;
1397 
1398 	freqs = wpa_config_parse_int_array(value);
1399 	if (freqs == NULL)
1400 		return -1;
1401 	if (freqs[0] == 0) {
1402 		os_free(freqs);
1403 		freqs = NULL;
1404 	}
1405 	os_free(ssid->freq_list);
1406 	ssid->freq_list = freqs;
1407 
1408 	return 0;
1409 }
1410 
1411 
1412 #ifndef NO_CONFIG_WRITE
wpa_config_write_freqs(const struct parse_data * data,const int * freqs)1413 static char * wpa_config_write_freqs(const struct parse_data *data,
1414 				     const int *freqs)
1415 {
1416 	char *buf, *pos, *end;
1417 	int i, ret;
1418 	size_t count;
1419 
1420 	if (freqs == NULL)
1421 		return NULL;
1422 
1423 	count = 0;
1424 	for (i = 0; freqs[i]; i++)
1425 		count++;
1426 
1427 	pos = buf = os_zalloc(10 * count + 1);
1428 	if (buf == NULL)
1429 		return NULL;
1430 	end = buf + 10 * count + 1;
1431 
1432 	for (i = 0; freqs[i]; i++) {
1433 		ret = os_snprintf(pos, end - pos, "%s%u",
1434 				  i == 0 ? "" : " ", freqs[i]);
1435 		if (os_snprintf_error(end - pos, ret)) {
1436 			end[-1] = '\0';
1437 			return buf;
1438 		}
1439 		pos += ret;
1440 	}
1441 
1442 	return buf;
1443 }
1444 
1445 
wpa_config_write_scan_freq(const struct parse_data * data,struct wpa_ssid * ssid)1446 static char * wpa_config_write_scan_freq(const struct parse_data *data,
1447 					 struct wpa_ssid *ssid)
1448 {
1449 	return wpa_config_write_freqs(data, ssid->scan_freq);
1450 }
1451 
1452 
wpa_config_write_freq_list(const struct parse_data * data,struct wpa_ssid * ssid)1453 static char * wpa_config_write_freq_list(const struct parse_data *data,
1454 					 struct wpa_ssid *ssid)
1455 {
1456 	return wpa_config_write_freqs(data, ssid->freq_list);
1457 }
1458 #endif /* NO_CONFIG_WRITE */
1459 
1460 
1461 #ifdef IEEE8021X_EAPOL
wpa_config_parse_eap(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1462 static int wpa_config_parse_eap(const struct parse_data *data,
1463 				struct wpa_ssid *ssid, int line,
1464 				const char *value)
1465 {
1466 	int last, errors = 0;
1467 	char *start, *end, *buf;
1468 	struct eap_method_type *methods = NULL, *tmp;
1469 	size_t num_methods = 0;
1470 
1471 	buf = os_strdup(value);
1472 	if (buf == NULL)
1473 		return -1;
1474 	start = buf;
1475 
1476 	while (*start != '\0') {
1477 		while (*start == ' ' || *start == '\t')
1478 			start++;
1479 		if (*start == '\0')
1480 			break;
1481 		end = start;
1482 		while (*end != ' ' && *end != '\t' && *end != '\0')
1483 			end++;
1484 		last = *end == '\0';
1485 		*end = '\0';
1486 		tmp = methods;
1487 		methods = os_realloc_array(methods, num_methods + 1,
1488 					   sizeof(*methods));
1489 		if (methods == NULL) {
1490 			os_free(tmp);
1491 			os_free(buf);
1492 			return -1;
1493 		}
1494 		methods[num_methods].method = eap_peer_get_type(
1495 			start, &methods[num_methods].vendor);
1496 		if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1497 		    methods[num_methods].method == EAP_TYPE_NONE) {
1498 			wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
1499 				   "'%s'", line, start);
1500 			wpa_printf(MSG_ERROR, "You may need to add support for"
1501 				   " this EAP method during wpa_supplicant\n"
1502 				   "build time configuration.\n"
1503 				   "See README for more information.");
1504 			errors++;
1505 		} else if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1506 			   methods[num_methods].method == EAP_TYPE_LEAP)
1507 			ssid->leap++;
1508 		else
1509 			ssid->non_leap++;
1510 		num_methods++;
1511 		if (last)
1512 			break;
1513 		start = end + 1;
1514 	}
1515 	os_free(buf);
1516 
1517 	tmp = methods;
1518 	methods = os_realloc_array(methods, num_methods + 1, sizeof(*methods));
1519 	if (methods == NULL) {
1520 		os_free(tmp);
1521 		return -1;
1522 	}
1523 	methods[num_methods].vendor = EAP_VENDOR_IETF;
1524 	methods[num_methods].method = EAP_TYPE_NONE;
1525 	num_methods++;
1526 
1527 	if (!errors && ssid->eap.eap_methods) {
1528 		struct eap_method_type *prev_m;
1529 		size_t i, j, prev_methods, match = 0;
1530 
1531 		prev_m = ssid->eap.eap_methods;
1532 		for (i = 0; prev_m[i].vendor != EAP_VENDOR_IETF ||
1533 			     prev_m[i].method != EAP_TYPE_NONE; i++) {
1534 			/* Count the methods */
1535 		}
1536 		prev_methods = i + 1;
1537 
1538 		for (i = 0; prev_methods == num_methods && i < prev_methods;
1539 		     i++) {
1540 			for (j = 0; j < num_methods; j++) {
1541 				if (prev_m[i].vendor == methods[j].vendor &&
1542 				    prev_m[i].method == methods[j].method) {
1543 					match++;
1544 					break;
1545 				}
1546 			}
1547 		}
1548 		if (match == num_methods) {
1549 			os_free(methods);
1550 			return 1;
1551 		}
1552 	}
1553 	wpa_hexdump(MSG_MSGDUMP, "eap methods",
1554 		    (u8 *) methods, num_methods * sizeof(*methods));
1555 	os_free(ssid->eap.eap_methods);
1556 	ssid->eap.eap_methods = methods;
1557 	return errors ? -1 : 0;
1558 }
1559 
1560 
1561 #ifndef NO_CONFIG_WRITE
wpa_config_write_eap(const struct parse_data * data,struct wpa_ssid * ssid)1562 static char * wpa_config_write_eap(const struct parse_data *data,
1563 				   struct wpa_ssid *ssid)
1564 {
1565 	int i, ret;
1566 	char *buf, *pos, *end;
1567 	const struct eap_method_type *eap_methods = ssid->eap.eap_methods;
1568 	const char *name;
1569 
1570 	if (eap_methods == NULL)
1571 		return NULL;
1572 
1573 	pos = buf = os_zalloc(100);
1574 	if (buf == NULL)
1575 		return NULL;
1576 	end = buf + 100;
1577 
1578 	for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF ||
1579 		     eap_methods[i].method != EAP_TYPE_NONE; i++) {
1580 		name = eap_get_name(eap_methods[i].vendor,
1581 				    eap_methods[i].method);
1582 		if (name) {
1583 			ret = os_snprintf(pos, end - pos, "%s%s",
1584 					  pos == buf ? "" : " ", name);
1585 			if (os_snprintf_error(end - pos, ret))
1586 				break;
1587 			pos += ret;
1588 		}
1589 	}
1590 
1591 	end[-1] = '\0';
1592 
1593 	return buf;
1594 }
1595 #endif /* NO_CONFIG_WRITE */
1596 
1597 
wpa_config_parse_password(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1598 static int wpa_config_parse_password(const struct parse_data *data,
1599 				     struct wpa_ssid *ssid, int line,
1600 				     const char *value)
1601 {
1602 	u8 *hash;
1603 
1604 	if (os_strcmp(value, "NULL") == 0) {
1605 		if (!ssid->eap.password)
1606 			return 1; /* Already unset */
1607 		wpa_printf(MSG_DEBUG, "Unset configuration string 'password'");
1608 		bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1609 		ssid->eap.password = NULL;
1610 		ssid->eap.password_len = 0;
1611 		return 0;
1612 	}
1613 
1614 #ifdef CONFIG_EXT_PASSWORD
1615 	if (os_strncmp(value, "ext:", 4) == 0) {
1616 		char *name = os_strdup(value + 4);
1617 		if (name == NULL)
1618 			return -1;
1619 		bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1620 		ssid->eap.password = (u8 *) name;
1621 		ssid->eap.password_len = os_strlen(name);
1622 		ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1623 		ssid->eap.flags |= EAP_CONFIG_FLAGS_EXT_PASSWORD;
1624 		return 0;
1625 	}
1626 #endif /* CONFIG_EXT_PASSWORD */
1627 
1628 	if (os_strncmp(value, "hash:", 5) != 0) {
1629 		char *tmp;
1630 		size_t res_len;
1631 
1632 		tmp = wpa_config_parse_string(value, &res_len);
1633 		if (tmp == NULL) {
1634 			wpa_printf(MSG_ERROR, "Line %d: failed to parse "
1635 				   "password.", line);
1636 			return -1;
1637 		}
1638 		wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
1639 				      (u8 *) tmp, res_len);
1640 
1641 		bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1642 		ssid->eap.password = (u8 *) tmp;
1643 		ssid->eap.password_len = res_len;
1644 		ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1645 		ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1646 
1647 		return 0;
1648 	}
1649 
1650 
1651 	/* NtPasswordHash: hash:<32 hex digits> */
1652 	if (os_strlen(value + 5) != 2 * 16) {
1653 		wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length "
1654 			   "(expected 32 hex digits)", line);
1655 		return -1;
1656 	}
1657 
1658 	hash = os_malloc(16);
1659 	if (hash == NULL)
1660 		return -1;
1661 
1662 	if (hexstr2bin(value + 5, hash, 16)) {
1663 		os_free(hash);
1664 		wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line);
1665 		return -1;
1666 	}
1667 
1668 	wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16);
1669 
1670 	if (ssid->eap.password && ssid->eap.password_len == 16 &&
1671 	    os_memcmp(ssid->eap.password, hash, 16) == 0 &&
1672 	    (ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1673 		bin_clear_free(hash, 16);
1674 		return 1;
1675 	}
1676 	bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1677 	ssid->eap.password = hash;
1678 	ssid->eap.password_len = 16;
1679 	ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1680 	ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1681 
1682 	return 0;
1683 }
1684 
1685 
1686 #ifndef NO_CONFIG_WRITE
wpa_config_write_password(const struct parse_data * data,struct wpa_ssid * ssid)1687 static char * wpa_config_write_password(const struct parse_data *data,
1688 					struct wpa_ssid *ssid)
1689 {
1690 	char *buf;
1691 
1692 	if (ssid->eap.password == NULL)
1693 		return NULL;
1694 
1695 #ifdef CONFIG_EXT_PASSWORD
1696 	if (ssid->eap.flags & EAP_CONFIG_FLAGS_EXT_PASSWORD) {
1697 		buf = os_zalloc(4 + ssid->eap.password_len + 1);
1698 		if (buf == NULL)
1699 			return NULL;
1700 		os_memcpy(buf, "ext:", 4);
1701 		os_memcpy(buf + 4, ssid->eap.password, ssid->eap.password_len);
1702 		return buf;
1703 	}
1704 #endif /* CONFIG_EXT_PASSWORD */
1705 
1706 	if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1707 		return wpa_config_write_string(
1708 			ssid->eap.password, ssid->eap.password_len);
1709 	}
1710 
1711 	buf = os_malloc(5 + 32 + 1);
1712 	if (buf == NULL)
1713 		return NULL;
1714 
1715 	os_memcpy(buf, "hash:", 5);
1716 	wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16);
1717 
1718 	return buf;
1719 }
1720 #endif /* NO_CONFIG_WRITE */
1721 #endif /* IEEE8021X_EAPOL */
1722 
1723 
wpa_config_parse_wep_key(u8 * key,size_t * len,int line,const char * value,int idx)1724 static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
1725 				    const char *value, int idx)
1726 {
1727 	char *buf, title[20];
1728 	int res;
1729 
1730 	buf = wpa_config_parse_string(value, len);
1731 	if (buf == NULL) {
1732 		wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
1733 			   line, idx, value);
1734 		return -1;
1735 	}
1736 	if (*len > MAX_WEP_KEY_LEN) {
1737 		wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
1738 			   line, idx, value);
1739 		os_free(buf);
1740 		return -1;
1741 	}
1742 	if (*len && *len != 5 && *len != 13 && *len != 16) {
1743 		wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key length %u - "
1744 			   "this network block will be ignored",
1745 			   line, (unsigned int) *len);
1746 	}
1747 	os_memcpy(key, buf, *len);
1748 	str_clear_free(buf);
1749 	res = os_snprintf(title, sizeof(title), "wep_key%d", idx);
1750 	if (!os_snprintf_error(sizeof(title), res))
1751 		wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
1752 	return 0;
1753 }
1754 
1755 
wpa_config_parse_wep_key0(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1756 static int wpa_config_parse_wep_key0(const struct parse_data *data,
1757 				     struct wpa_ssid *ssid, int line,
1758 				     const char *value)
1759 {
1760 	return wpa_config_parse_wep_key(ssid->wep_key[0],
1761 					&ssid->wep_key_len[0], line,
1762 					value, 0);
1763 }
1764 
1765 
wpa_config_parse_wep_key1(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1766 static int wpa_config_parse_wep_key1(const struct parse_data *data,
1767 				     struct wpa_ssid *ssid, int line,
1768 				     const char *value)
1769 {
1770 	return wpa_config_parse_wep_key(ssid->wep_key[1],
1771 					&ssid->wep_key_len[1], line,
1772 					value, 1);
1773 }
1774 
1775 
wpa_config_parse_wep_key2(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1776 static int wpa_config_parse_wep_key2(const struct parse_data *data,
1777 				     struct wpa_ssid *ssid, int line,
1778 				     const char *value)
1779 {
1780 	return wpa_config_parse_wep_key(ssid->wep_key[2],
1781 					&ssid->wep_key_len[2], line,
1782 					value, 2);
1783 }
1784 
1785 
wpa_config_parse_wep_key3(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1786 static int wpa_config_parse_wep_key3(const struct parse_data *data,
1787 				     struct wpa_ssid *ssid, int line,
1788 				     const char *value)
1789 {
1790 	return wpa_config_parse_wep_key(ssid->wep_key[3],
1791 					&ssid->wep_key_len[3], line,
1792 					value, 3);
1793 }
1794 
1795 
1796 #ifndef NO_CONFIG_WRITE
wpa_config_write_wep_key(struct wpa_ssid * ssid,int idx)1797 static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx)
1798 {
1799 	if (ssid->wep_key_len[idx] == 0)
1800 		return NULL;
1801 	return wpa_config_write_string(ssid->wep_key[idx],
1802 				       ssid->wep_key_len[idx]);
1803 }
1804 
1805 
wpa_config_write_wep_key0(const struct parse_data * data,struct wpa_ssid * ssid)1806 static char * wpa_config_write_wep_key0(const struct parse_data *data,
1807 					struct wpa_ssid *ssid)
1808 {
1809 	return wpa_config_write_wep_key(ssid, 0);
1810 }
1811 
1812 
wpa_config_write_wep_key1(const struct parse_data * data,struct wpa_ssid * ssid)1813 static char * wpa_config_write_wep_key1(const struct parse_data *data,
1814 					struct wpa_ssid *ssid)
1815 {
1816 	return wpa_config_write_wep_key(ssid, 1);
1817 }
1818 
1819 
wpa_config_write_wep_key2(const struct parse_data * data,struct wpa_ssid * ssid)1820 static char * wpa_config_write_wep_key2(const struct parse_data *data,
1821 					struct wpa_ssid *ssid)
1822 {
1823 	return wpa_config_write_wep_key(ssid, 2);
1824 }
1825 
1826 
wpa_config_write_wep_key3(const struct parse_data * data,struct wpa_ssid * ssid)1827 static char * wpa_config_write_wep_key3(const struct parse_data *data,
1828 					struct wpa_ssid *ssid)
1829 {
1830 	return wpa_config_write_wep_key(ssid, 3);
1831 }
1832 #endif /* NO_CONFIG_WRITE */
1833 
1834 
1835 #ifdef CONFIG_P2P
1836 
wpa_config_parse_go_p2p_dev_addr(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1837 static int wpa_config_parse_go_p2p_dev_addr(const struct parse_data *data,
1838 					    struct wpa_ssid *ssid, int line,
1839 					    const char *value)
1840 {
1841 	if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
1842 	    os_strcmp(value, "any") == 0) {
1843 		os_memset(ssid->go_p2p_dev_addr, 0, ETH_ALEN);
1844 		wpa_printf(MSG_MSGDUMP, "GO P2P Device Address any");
1845 		return 0;
1846 	}
1847 	if (hwaddr_aton(value, ssid->go_p2p_dev_addr)) {
1848 		wpa_printf(MSG_ERROR, "Line %d: Invalid GO P2P Device Address '%s'.",
1849 			   line, value);
1850 		return -1;
1851 	}
1852 	ssid->bssid_set = 1;
1853 	wpa_printf(MSG_MSGDUMP, "GO P2P Device Address " MACSTR,
1854 		   MAC2STR(ssid->go_p2p_dev_addr));
1855 	return 0;
1856 }
1857 
1858 
1859 #ifndef NO_CONFIG_WRITE
wpa_config_write_go_p2p_dev_addr(const struct parse_data * data,struct wpa_ssid * ssid)1860 static char * wpa_config_write_go_p2p_dev_addr(const struct parse_data *data,
1861 					       struct wpa_ssid *ssid)
1862 {
1863 	char *value;
1864 	int res;
1865 
1866 	if (is_zero_ether_addr(ssid->go_p2p_dev_addr))
1867 		return NULL;
1868 
1869 	value = os_malloc(20);
1870 	if (value == NULL)
1871 		return NULL;
1872 	res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->go_p2p_dev_addr));
1873 	if (os_snprintf_error(20, res)) {
1874 		os_free(value);
1875 		return NULL;
1876 	}
1877 	value[20 - 1] = '\0';
1878 	return value;
1879 }
1880 #endif /* NO_CONFIG_WRITE */
1881 
1882 
wpa_config_parse_p2p_client_list(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1883 static int wpa_config_parse_p2p_client_list(const struct parse_data *data,
1884 					    struct wpa_ssid *ssid, int line,
1885 					    const char *value)
1886 {
1887 	return wpa_config_parse_addr_list(data, line, value,
1888 					  &ssid->p2p_client_list,
1889 					  &ssid->num_p2p_clients,
1890 					  "p2p_client_list", 0, 0);
1891 }
1892 
1893 
1894 #ifndef NO_CONFIG_WRITE
wpa_config_write_p2p_client_list(const struct parse_data * data,struct wpa_ssid * ssid)1895 static char * wpa_config_write_p2p_client_list(const struct parse_data *data,
1896 					       struct wpa_ssid *ssid)
1897 {
1898 	return wpa_config_write_addr_list(data, ssid->p2p_client_list,
1899 					  ssid->num_p2p_clients,
1900 					  "p2p_client_list");
1901 }
1902 #endif /* NO_CONFIG_WRITE */
1903 
1904 
wpa_config_parse_psk_list(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1905 static int wpa_config_parse_psk_list(const struct parse_data *data,
1906 				     struct wpa_ssid *ssid, int line,
1907 				     const char *value)
1908 {
1909 	struct psk_list_entry *p;
1910 	const char *pos;
1911 
1912 	p = os_zalloc(sizeof(*p));
1913 	if (p == NULL)
1914 		return -1;
1915 
1916 	pos = value;
1917 	if (os_strncmp(pos, "P2P-", 4) == 0) {
1918 		p->p2p = 1;
1919 		pos += 4;
1920 	}
1921 
1922 	if (hwaddr_aton(pos, p->addr)) {
1923 		wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list address '%s'",
1924 			   line, pos);
1925 		os_free(p);
1926 		return -1;
1927 	}
1928 	pos += 17;
1929 	if (*pos != '-') {
1930 		wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list '%s'",
1931 			   line, pos);
1932 		os_free(p);
1933 		return -1;
1934 	}
1935 	pos++;
1936 
1937 	if (hexstr2bin(pos, p->psk, PMK_LEN) || pos[PMK_LEN * 2] != '\0') {
1938 		wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list PSK '%s'",
1939 			   line, pos);
1940 		os_free(p);
1941 		return -1;
1942 	}
1943 
1944 	dl_list_add(&ssid->psk_list, &p->list);
1945 
1946 	return 0;
1947 }
1948 
1949 
1950 #ifndef NO_CONFIG_WRITE
wpa_config_write_psk_list(const struct parse_data * data,struct wpa_ssid * ssid)1951 static char * wpa_config_write_psk_list(const struct parse_data *data,
1952 					struct wpa_ssid *ssid)
1953 {
1954 	return NULL;
1955 }
1956 #endif /* NO_CONFIG_WRITE */
1957 
1958 #endif /* CONFIG_P2P */
1959 
1960 
1961 #ifdef CONFIG_MESH
1962 
wpa_config_parse_mesh_basic_rates(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1963 static int wpa_config_parse_mesh_basic_rates(const struct parse_data *data,
1964 					     struct wpa_ssid *ssid, int line,
1965 					     const char *value)
1966 {
1967 	int *rates = wpa_config_parse_int_array(value);
1968 
1969 	if (rates == NULL) {
1970 		wpa_printf(MSG_ERROR, "Line %d: Invalid mesh_basic_rates '%s'",
1971 			   line, value);
1972 		return -1;
1973 	}
1974 	if (rates[0] == 0) {
1975 		os_free(rates);
1976 		rates = NULL;
1977 	}
1978 
1979 	os_free(ssid->mesh_basic_rates);
1980 	ssid->mesh_basic_rates = rates;
1981 
1982 	return 0;
1983 }
1984 
1985 
1986 #ifndef NO_CONFIG_WRITE
1987 
wpa_config_write_mesh_basic_rates(const struct parse_data * data,struct wpa_ssid * ssid)1988 static char * wpa_config_write_mesh_basic_rates(const struct parse_data *data,
1989 						struct wpa_ssid *ssid)
1990 {
1991 	return wpa_config_write_freqs(data, ssid->mesh_basic_rates);
1992 }
1993 
1994 #endif /* NO_CONFIG_WRITE */
1995 
1996 #endif /* CONFIG_MESH */
1997 
1998 
1999 #ifdef CONFIG_MACSEC
2000 
wpa_config_parse_mka_cak(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)2001 static int wpa_config_parse_mka_cak(const struct parse_data *data,
2002 				    struct wpa_ssid *ssid, int line,
2003 				    const char *value)
2004 {
2005 	size_t len;
2006 
2007 	len = os_strlen(value);
2008 	if (len > 2 * MACSEC_CAK_MAX_LEN ||
2009 	    (len != 2 * 16 && len != 2 * 32) ||
2010 	    hexstr2bin(value, ssid->mka_cak, len / 2)) {
2011 		wpa_printf(MSG_ERROR, "Line %d: Invalid MKA-CAK '%s'.",
2012 			   line, value);
2013 		return -1;
2014 	}
2015 	ssid->mka_cak_len = len / 2;
2016 	ssid->mka_psk_set |= MKA_PSK_SET_CAK;
2017 
2018 	wpa_hexdump_key(MSG_MSGDUMP, "MKA-CAK", ssid->mka_cak,
2019 			ssid->mka_cak_len);
2020 	return 0;
2021 }
2022 
2023 
wpa_config_parse_mka_ckn(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)2024 static int wpa_config_parse_mka_ckn(const struct parse_data *data,
2025 				    struct wpa_ssid *ssid, int line,
2026 				    const char *value)
2027 {
2028 	size_t len;
2029 
2030 	len = os_strlen(value);
2031 	if (len > 2 * MACSEC_CKN_MAX_LEN || /* too long */
2032 	    len < 2 || /* too short */
2033 	    len % 2 != 0 /* not an integral number of bytes */) {
2034 		wpa_printf(MSG_ERROR, "Line %d: Invalid MKA-CKN '%s'.",
2035 			   line, value);
2036 		return -1;
2037 	}
2038 	ssid->mka_ckn_len = len / 2;
2039 	if (hexstr2bin(value, ssid->mka_ckn, ssid->mka_ckn_len)) {
2040 		wpa_printf(MSG_ERROR, "Line %d: Invalid MKA-CKN '%s'.",
2041 			   line, value);
2042 		return -1;
2043 	}
2044 
2045 	ssid->mka_psk_set |= MKA_PSK_SET_CKN;
2046 
2047 	wpa_hexdump_key(MSG_MSGDUMP, "MKA-CKN", ssid->mka_ckn,
2048 			ssid->mka_ckn_len);
2049 	return 0;
2050 }
2051 
2052 
2053 #ifndef NO_CONFIG_WRITE
2054 
wpa_config_write_mka_cak(const struct parse_data * data,struct wpa_ssid * ssid)2055 static char * wpa_config_write_mka_cak(const struct parse_data *data,
2056 				       struct wpa_ssid *ssid)
2057 {
2058 	if (!(ssid->mka_psk_set & MKA_PSK_SET_CAK))
2059 		return NULL;
2060 
2061 	return wpa_config_write_string_hex(ssid->mka_cak, ssid->mka_cak_len);
2062 }
2063 
2064 
wpa_config_write_mka_ckn(const struct parse_data * data,struct wpa_ssid * ssid)2065 static char * wpa_config_write_mka_ckn(const struct parse_data *data,
2066 				       struct wpa_ssid *ssid)
2067 {
2068 	if (!(ssid->mka_psk_set & MKA_PSK_SET_CKN))
2069 		return NULL;
2070 	return wpa_config_write_string_hex(ssid->mka_ckn, ssid->mka_ckn_len);
2071 }
2072 
2073 #endif /* NO_CONFIG_WRITE */
2074 
2075 #endif /* CONFIG_MACSEC */
2076 
2077 
2078 #ifdef CONFIG_OCV
2079 
wpa_config_parse_ocv(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)2080 static int wpa_config_parse_ocv(const struct parse_data *data,
2081 				struct wpa_ssid *ssid, int line,
2082 				const char *value)
2083 {
2084 	char *end;
2085 
2086 	ssid->ocv = strtol(value, &end, 0);
2087 	if (*end || ssid->ocv < 0 || ssid->ocv > 1) {
2088 		wpa_printf(MSG_ERROR, "Line %d: Invalid ocv value '%s'.",
2089 			   line, value);
2090 		return -1;
2091 	}
2092 	if (ssid->ocv && ssid->ieee80211w == NO_MGMT_FRAME_PROTECTION)
2093 		ssid->ieee80211w = MGMT_FRAME_PROTECTION_OPTIONAL;
2094 	return 0;
2095 }
2096 
2097 
2098 #ifndef NO_CONFIG_WRITE
wpa_config_write_ocv(const struct parse_data * data,struct wpa_ssid * ssid)2099 static char * wpa_config_write_ocv(const struct parse_data *data,
2100 				   struct wpa_ssid *ssid)
2101 {
2102 	char *value = os_malloc(20);
2103 
2104 	if (!value)
2105 		return NULL;
2106 	os_snprintf(value, 20, "%d", ssid->ocv);
2107 	value[20 - 1] = '\0';
2108 	return value;
2109 }
2110 #endif /* NO_CONFIG_WRITE */
2111 
2112 #endif /* CONFIG_OCV */
2113 
2114 
wpa_config_parse_peerkey(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)2115 static int wpa_config_parse_peerkey(const struct parse_data *data,
2116 				    struct wpa_ssid *ssid, int line,
2117 				    const char *value)
2118 {
2119 	wpa_printf(MSG_INFO, "NOTE: Obsolete peerkey parameter ignored");
2120 	return 0;
2121 }
2122 
2123 
2124 #ifndef NO_CONFIG_WRITE
wpa_config_write_peerkey(const struct parse_data * data,struct wpa_ssid * ssid)2125 static char * wpa_config_write_peerkey(const struct parse_data *data,
2126 				       struct wpa_ssid *ssid)
2127 {
2128 	return NULL;
2129 }
2130 #endif /* NO_CONFIG_WRITE */
2131 
2132 
2133 /* Helper macros for network block parser */
2134 
2135 #ifdef OFFSET
2136 #undef OFFSET
2137 #endif /* OFFSET */
2138 /* OFFSET: Get offset of a variable within the wpa_ssid structure */
2139 #define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
2140 
2141 /* STR: Define a string variable for an ASCII string; f = field name */
2142 #ifdef NO_CONFIG_WRITE
2143 #define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
2144 #define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
2145 #else /* NO_CONFIG_WRITE */
2146 #define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
2147 #define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
2148 #endif /* NO_CONFIG_WRITE */
2149 #define STR(f) _STR(f), NULL, NULL, NULL, 0
2150 #define STRe(f) _STRe(f), NULL, NULL, NULL, 0
2151 #define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
2152 #define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
2153 
2154 /* STR_LEN: Define a string variable with a separate variable for storing the
2155  * data length. Unlike STR(), this can be used to store arbitrary binary data
2156  * (i.e., even nul termination character). */
2157 #define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
2158 #define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
2159 #define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
2160 #define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
2161 #define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
2162 
2163 /* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
2164  * explicitly specified. */
2165 #define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
2166 #define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
2167 #define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
2168 
2169 #ifdef NO_CONFIG_WRITE
2170 #define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
2171 #define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
2172 #else /* NO_CONFIG_WRITE */
2173 #define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
2174 	OFFSET(f), (void *) 0
2175 #define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
2176 	OFFSET(eap.f), (void *) 0
2177 #endif /* NO_CONFIG_WRITE */
2178 
2179 /* INT: Define an integer variable */
2180 #define INT(f) _INT(f), NULL, NULL, 0
2181 #define INTe(f) _INTe(f), NULL, NULL, 0
2182 
2183 /* INT_RANGE: Define an integer variable with allowed value range */
2184 #define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
2185 
2186 /* FUNC: Define a configuration variable that uses a custom function for
2187  * parsing and writing the value. */
2188 #ifdef NO_CONFIG_WRITE
2189 #define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
2190 #else /* NO_CONFIG_WRITE */
2191 #define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
2192 	NULL, NULL, NULL, NULL
2193 #endif /* NO_CONFIG_WRITE */
2194 #define FUNC(f) _FUNC(f), 0
2195 #define FUNC_KEY(f) _FUNC(f), 1
2196 
2197 /*
2198  * Table of network configuration variables. This table is used to parse each
2199  * network configuration variable, e.g., each line in wpa_supplicant.conf file
2200  * that is inside a network block.
2201  *
2202  * This table is generated using the helper macros defined above and with
2203  * generous help from the C pre-processor. The field name is stored as a string
2204  * into .name and for STR and INT types, the offset of the target buffer within
2205  * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
2206  * offset to the field containing the length of the configuration variable.
2207  * .param3 and .param4 can be used to mark the allowed range (length for STR
2208  * and value for INT).
2209  *
2210  * For each configuration line in wpa_supplicant.conf, the parser goes through
2211  * this table and select the entry that matches with the field name. The parser
2212  * function (.parser) is then called to parse the actual value of the field.
2213  *
2214  * This kind of mechanism makes it easy to add new configuration parameters,
2215  * since only one line needs to be added into this table and into the
2216  * struct wpa_ssid definition if the new variable is either a string or
2217  * integer. More complex types will need to use their own parser and writer
2218  * functions.
2219  */
2220 static const struct parse_data ssid_fields[] = {
2221 	{ STR_RANGE(ssid, 0, SSID_MAX_LEN) },
2222 	{ INT_RANGE(scan_ssid, 0, 1) },
2223 	{ FUNC(bssid) },
2224 	{ FUNC(bssid_hint) },
2225 	{ FUNC(bssid_blacklist) },
2226 	{ FUNC(bssid_whitelist) },
2227 	{ FUNC_KEY(psk) },
2228 	{ INT(mem_only_psk) },
2229 	{ STR_KEY(sae_password) },
2230 	{ STR(sae_password_id) },
2231 	{ FUNC(proto) },
2232 	{ FUNC(key_mgmt) },
2233 	{ INT(bg_scan_period) },
2234 	{ FUNC(pairwise) },
2235 	{ FUNC(group) },
2236 	{ FUNC(group_mgmt) },
2237 	{ FUNC(auth_alg) },
2238 	{ FUNC(scan_freq) },
2239 	{ FUNC(freq_list) },
2240 	{ INT_RANGE(ht, 0, 1) },
2241 	{ INT_RANGE(vht, 0, 1) },
2242 	{ INT_RANGE(ht40, -1, 1) },
2243 	{ INT_RANGE(max_oper_chwidth, CHANWIDTH_USE_HT,
2244 		    CHANWIDTH_80P80MHZ) },
2245 	{ INT(vht_center_freq1) },
2246 	{ INT(vht_center_freq2) },
2247 #ifdef IEEE8021X_EAPOL
2248 	{ FUNC(eap) },
2249 	{ STR_LENe(identity) },
2250 	{ STR_LENe(anonymous_identity) },
2251 	{ STR_LENe(imsi_identity) },
2252 	{ FUNC_KEY(password) },
2253 	{ STRe(ca_cert) },
2254 	{ STRe(ca_path) },
2255 	{ STRe(client_cert) },
2256 	{ STRe(private_key) },
2257 	{ STR_KEYe(private_key_passwd) },
2258 	{ STRe(dh_file) },
2259 	{ STRe(subject_match) },
2260 	{ STRe(check_cert_subject) },
2261 	{ STRe(altsubject_match) },
2262 	{ STRe(domain_suffix_match) },
2263 	{ STRe(domain_match) },
2264 	{ STRe(ca_cert2) },
2265 	{ STRe(ca_path2) },
2266 	{ STRe(client_cert2) },
2267 	{ STRe(private_key2) },
2268 	{ STR_KEYe(private_key2_passwd) },
2269 	{ STRe(dh_file2) },
2270 	{ STRe(subject_match2) },
2271 	{ STRe(check_cert_subject2) },
2272 	{ STRe(altsubject_match2) },
2273 	{ STRe(domain_suffix_match2) },
2274 	{ STRe(domain_match2) },
2275 	{ STRe(phase1) },
2276 	{ STRe(phase2) },
2277 	{ STRe(pcsc) },
2278 	{ STR_KEYe(pin) },
2279 	{ STRe(engine_id) },
2280 	{ STRe(key_id) },
2281 	{ STRe(cert_id) },
2282 	{ STRe(ca_cert_id) },
2283 	{ STR_KEYe(pin2) },
2284 	{ STRe(engine2_id) },
2285 	{ STRe(key2_id) },
2286 	{ STRe(cert2_id) },
2287 	{ STRe(ca_cert2_id) },
2288 	{ INTe(engine) },
2289 	{ INTe(engine2) },
2290 	{ INT(eapol_flags) },
2291 	{ INTe(sim_num) },
2292 	{ STRe(openssl_ciphers) },
2293 	{ INTe(erp) },
2294 #endif /* IEEE8021X_EAPOL */
2295 	{ FUNC_KEY(wep_key0) },
2296 	{ FUNC_KEY(wep_key1) },
2297 	{ FUNC_KEY(wep_key2) },
2298 	{ FUNC_KEY(wep_key3) },
2299 	{ INT(wep_tx_keyidx) },
2300 	{ INT(priority) },
2301 #ifdef IEEE8021X_EAPOL
2302 	{ INT(eap_workaround) },
2303 	{ STRe(pac_file) },
2304 	{ INTe(fragment_size) },
2305 	{ INTe(ocsp) },
2306 #endif /* IEEE8021X_EAPOL */
2307 #ifdef CONFIG_MESH
2308 	{ INT_RANGE(mode, 0, 5) },
2309 	{ INT_RANGE(no_auto_peer, 0, 1) },
2310 	{ INT_RANGE(mesh_rssi_threshold, -255, 1) },
2311 #else /* CONFIG_MESH */
2312 	{ INT_RANGE(mode, 0, 4) },
2313 #endif /* CONFIG_MESH */
2314 	{ INT_RANGE(proactive_key_caching, 0, 1) },
2315 	{ INT_RANGE(disabled, 0, 2) },
2316 	{ STR(id_str) },
2317 #ifdef CONFIG_IEEE80211W
2318 	{ INT_RANGE(ieee80211w, 0, 2) },
2319 #endif /* CONFIG_IEEE80211W */
2320 #ifdef CONFIG_OCV
2321 	{ FUNC(ocv) },
2322 #endif /* CONFIG_OCV */
2323 	{ FUNC(peerkey) /* obsolete - removed */ },
2324 	{ INT_RANGE(mixed_cell, 0, 1) },
2325 	{ INT_RANGE(frequency, 0, 65000) },
2326 	{ INT_RANGE(fixed_freq, 0, 1) },
2327 #ifdef CONFIG_ACS
2328 	{ INT_RANGE(acs, 0, 1) },
2329 #endif /* CONFIG_ACS */
2330 #ifdef CONFIG_MESH
2331 	{ FUNC(mesh_basic_rates) },
2332 	{ INT(dot11MeshMaxRetries) },
2333 	{ INT(dot11MeshRetryTimeout) },
2334 	{ INT(dot11MeshConfirmTimeout) },
2335 	{ INT(dot11MeshHoldingTimeout) },
2336 #endif /* CONFIG_MESH */
2337 	{ INT(wpa_ptk_rekey) },
2338 	{ INT(group_rekey) },
2339 	{ STR(bgscan) },
2340 	{ INT_RANGE(ignore_broadcast_ssid, 0, 2) },
2341 #ifdef CONFIG_P2P
2342 	{ FUNC(go_p2p_dev_addr) },
2343 	{ FUNC(p2p_client_list) },
2344 	{ FUNC(psk_list) },
2345 #endif /* CONFIG_P2P */
2346 #ifdef CONFIG_HT_OVERRIDES
2347 	{ INT_RANGE(disable_ht, 0, 1) },
2348 	{ INT_RANGE(disable_ht40, -1, 1) },
2349 	{ INT_RANGE(disable_sgi, 0, 1) },
2350 	{ INT_RANGE(disable_ldpc, 0, 1) },
2351 	{ INT_RANGE(ht40_intolerant, 0, 1) },
2352 	{ INT_RANGE(tx_stbc, -1, 1) },
2353 	{ INT_RANGE(rx_stbc, -1, 3) },
2354 	{ INT_RANGE(disable_max_amsdu, -1, 1) },
2355 	{ INT_RANGE(ampdu_factor, -1, 3) },
2356 	{ INT_RANGE(ampdu_density, -1, 7) },
2357 	{ STR(ht_mcs) },
2358 #endif /* CONFIG_HT_OVERRIDES */
2359 #ifdef CONFIG_VHT_OVERRIDES
2360 	{ INT_RANGE(disable_vht, 0, 1) },
2361 	{ INT(vht_capa) },
2362 	{ INT(vht_capa_mask) },
2363 	{ INT_RANGE(vht_rx_mcs_nss_1, -1, 3) },
2364 	{ INT_RANGE(vht_rx_mcs_nss_2, -1, 3) },
2365 	{ INT_RANGE(vht_rx_mcs_nss_3, -1, 3) },
2366 	{ INT_RANGE(vht_rx_mcs_nss_4, -1, 3) },
2367 	{ INT_RANGE(vht_rx_mcs_nss_5, -1, 3) },
2368 	{ INT_RANGE(vht_rx_mcs_nss_6, -1, 3) },
2369 	{ INT_RANGE(vht_rx_mcs_nss_7, -1, 3) },
2370 	{ INT_RANGE(vht_rx_mcs_nss_8, -1, 3) },
2371 	{ INT_RANGE(vht_tx_mcs_nss_1, -1, 3) },
2372 	{ INT_RANGE(vht_tx_mcs_nss_2, -1, 3) },
2373 	{ INT_RANGE(vht_tx_mcs_nss_3, -1, 3) },
2374 	{ INT_RANGE(vht_tx_mcs_nss_4, -1, 3) },
2375 	{ INT_RANGE(vht_tx_mcs_nss_5, -1, 3) },
2376 	{ INT_RANGE(vht_tx_mcs_nss_6, -1, 3) },
2377 	{ INT_RANGE(vht_tx_mcs_nss_7, -1, 3) },
2378 	{ INT_RANGE(vht_tx_mcs_nss_8, -1, 3) },
2379 #endif /* CONFIG_VHT_OVERRIDES */
2380 	{ INT(ap_max_inactivity) },
2381 	{ INT(dtim_period) },
2382 	{ INT(beacon_int) },
2383 #ifdef CONFIG_MACSEC
2384 	{ INT_RANGE(macsec_policy, 0, 1) },
2385 	{ INT_RANGE(macsec_integ_only, 0, 1) },
2386 	{ INT_RANGE(macsec_replay_protect, 0, 1) },
2387 	{ INT(macsec_replay_window) },
2388 	{ INT_RANGE(macsec_port, 1, 65534) },
2389 	{ INT_RANGE(mka_priority, 0, 255) },
2390 	{ FUNC_KEY(mka_cak) },
2391 	{ FUNC_KEY(mka_ckn) },
2392 #endif /* CONFIG_MACSEC */
2393 #ifdef CONFIG_HS20
2394 	{ INT(update_identifier) },
2395 	{ STR_RANGE(roaming_consortium_selection, 0, MAX_ROAMING_CONS_OI_LEN) },
2396 #endif /* CONFIG_HS20 */
2397 	{ INT_RANGE(mac_addr, 0, 2) },
2398 	{ INT_RANGE(pbss, 0, 2) },
2399 	{ INT_RANGE(wps_disabled, 0, 1) },
2400 	{ INT_RANGE(fils_dh_group, 0, 65535) },
2401 #ifdef CONFIG_DPP
2402 	{ STR(dpp_connector) },
2403 	{ STR_LEN(dpp_netaccesskey) },
2404 	{ INT(dpp_netaccesskey_expiry) },
2405 	{ STR_LEN(dpp_csign) },
2406 #endif /* CONFIG_DPP */
2407 	{ INT_RANGE(owe_group, 0, 65535) },
2408 	{ INT_RANGE(owe_only, 0, 1) },
2409 	{ INT_RANGE(multi_ap_backhaul_sta, 0, 1) },
2410 	{ INT_RANGE(ft_eap_pmksa_caching, 0, 1) },
2411 };
2412 
2413 #undef OFFSET
2414 #undef _STR
2415 #undef STR
2416 #undef STR_KEY
2417 #undef _STR_LEN
2418 #undef STR_LEN
2419 #undef STR_LEN_KEY
2420 #undef _STR_RANGE
2421 #undef STR_RANGE
2422 #undef STR_RANGE_KEY
2423 #undef _INT
2424 #undef INT
2425 #undef INT_RANGE
2426 #undef _FUNC
2427 #undef FUNC
2428 #undef FUNC_KEY
2429 #define NUM_SSID_FIELDS ARRAY_SIZE(ssid_fields)
2430 
2431 
2432 /**
2433  * wpa_config_add_prio_network - Add a network to priority lists
2434  * @config: Configuration data from wpa_config_read()
2435  * @ssid: Pointer to the network configuration to be added to the list
2436  * Returns: 0 on success, -1 on failure
2437  *
2438  * This function is used to add a network block to the priority list of
2439  * networks. This must be called for each network when reading in the full
2440  * configuration. In addition, this can be used indirectly when updating
2441  * priorities by calling wpa_config_update_prio_list().
2442  */
wpa_config_add_prio_network(struct wpa_config * config,struct wpa_ssid * ssid)2443 int wpa_config_add_prio_network(struct wpa_config *config,
2444 				struct wpa_ssid *ssid)
2445 {
2446 	int prio;
2447 	struct wpa_ssid *prev, **nlist;
2448 
2449 	/*
2450 	 * Add to an existing priority list if one is available for the
2451 	 * configured priority level for this network.
2452 	 */
2453 	for (prio = 0; prio < config->num_prio; prio++) {
2454 		prev = config->pssid[prio];
2455 		if (prev->priority == ssid->priority) {
2456 			while (prev->pnext)
2457 				prev = prev->pnext;
2458 			prev->pnext = ssid;
2459 			return 0;
2460 		}
2461 	}
2462 
2463 	/* First network for this priority - add a new priority list */
2464 	nlist = os_realloc_array(config->pssid, config->num_prio + 1,
2465 				 sizeof(struct wpa_ssid *));
2466 	if (nlist == NULL)
2467 		return -1;
2468 
2469 	for (prio = 0; prio < config->num_prio; prio++) {
2470 		if (nlist[prio]->priority < ssid->priority) {
2471 			os_memmove(&nlist[prio + 1], &nlist[prio],
2472 				   (config->num_prio - prio) *
2473 				   sizeof(struct wpa_ssid *));
2474 			break;
2475 		}
2476 	}
2477 
2478 	nlist[prio] = ssid;
2479 	config->num_prio++;
2480 	config->pssid = nlist;
2481 
2482 	return 0;
2483 }
2484 
2485 
2486 /**
2487  * wpa_config_update_prio_list - Update network priority list
2488  * @config: Configuration data from wpa_config_read()
2489  * Returns: 0 on success, -1 on failure
2490  *
2491  * This function is called to update the priority list of networks in the
2492  * configuration when a network is being added or removed. This is also called
2493  * if a priority for a network is changed.
2494  */
wpa_config_update_prio_list(struct wpa_config * config)2495 int wpa_config_update_prio_list(struct wpa_config *config)
2496 {
2497 	struct wpa_ssid *ssid;
2498 	int ret = 0;
2499 
2500 	os_free(config->pssid);
2501 	config->pssid = NULL;
2502 	config->num_prio = 0;
2503 
2504 	ssid = config->ssid;
2505 	while (ssid) {
2506 		ssid->pnext = NULL;
2507 		if (wpa_config_add_prio_network(config, ssid) < 0)
2508 			ret = -1;
2509 		ssid = ssid->next;
2510 	}
2511 
2512 	return ret;
2513 }
2514 
2515 
2516 #ifdef IEEE8021X_EAPOL
eap_peer_config_free(struct eap_peer_config * eap)2517 static void eap_peer_config_free(struct eap_peer_config *eap)
2518 {
2519 	os_free(eap->eap_methods);
2520 	bin_clear_free(eap->identity, eap->identity_len);
2521 	os_free(eap->anonymous_identity);
2522 	os_free(eap->imsi_identity);
2523 	bin_clear_free(eap->password, eap->password_len);
2524 	os_free(eap->ca_cert);
2525 	os_free(eap->ca_path);
2526 	os_free(eap->client_cert);
2527 	os_free(eap->private_key);
2528 	str_clear_free(eap->private_key_passwd);
2529 	os_free(eap->dh_file);
2530 	os_free(eap->subject_match);
2531 	os_free(eap->check_cert_subject);
2532 	os_free(eap->altsubject_match);
2533 	os_free(eap->domain_suffix_match);
2534 	os_free(eap->domain_match);
2535 	os_free(eap->ca_cert2);
2536 	os_free(eap->ca_path2);
2537 	os_free(eap->client_cert2);
2538 	os_free(eap->private_key2);
2539 	str_clear_free(eap->private_key2_passwd);
2540 	os_free(eap->dh_file2);
2541 	os_free(eap->subject_match2);
2542 	os_free(eap->check_cert_subject2);
2543 	os_free(eap->altsubject_match2);
2544 	os_free(eap->domain_suffix_match2);
2545 	os_free(eap->domain_match2);
2546 	os_free(eap->phase1);
2547 	os_free(eap->phase2);
2548 	os_free(eap->pcsc);
2549 	str_clear_free(eap->pin);
2550 	os_free(eap->engine_id);
2551 	os_free(eap->key_id);
2552 	os_free(eap->cert_id);
2553 	os_free(eap->ca_cert_id);
2554 	os_free(eap->key2_id);
2555 	os_free(eap->cert2_id);
2556 	os_free(eap->ca_cert2_id);
2557 	str_clear_free(eap->pin2);
2558 	os_free(eap->engine2_id);
2559 	os_free(eap->otp);
2560 	os_free(eap->pending_req_otp);
2561 	os_free(eap->pac_file);
2562 	bin_clear_free(eap->new_password, eap->new_password_len);
2563 	str_clear_free(eap->external_sim_resp);
2564 	os_free(eap->openssl_ciphers);
2565 }
2566 #endif /* IEEE8021X_EAPOL */
2567 
2568 
2569 /**
2570  * wpa_config_free_ssid - Free network/ssid configuration data
2571  * @ssid: Configuration data for the network
2572  *
2573  * This function frees all resources allocated for the network configuration
2574  * data.
2575  */
wpa_config_free_ssid(struct wpa_ssid * ssid)2576 void wpa_config_free_ssid(struct wpa_ssid *ssid)
2577 {
2578 	struct psk_list_entry *psk;
2579 
2580 	os_free(ssid->ssid);
2581 	str_clear_free(ssid->passphrase);
2582 	os_free(ssid->ext_psk);
2583 	str_clear_free(ssid->sae_password);
2584 	os_free(ssid->sae_password_id);
2585 #ifdef IEEE8021X_EAPOL
2586 	eap_peer_config_free(&ssid->eap);
2587 #endif /* IEEE8021X_EAPOL */
2588 	os_free(ssid->id_str);
2589 	os_free(ssid->scan_freq);
2590 	os_free(ssid->freq_list);
2591 	os_free(ssid->bgscan);
2592 	os_free(ssid->p2p_client_list);
2593 	os_free(ssid->bssid_blacklist);
2594 	os_free(ssid->bssid_whitelist);
2595 #ifdef CONFIG_HT_OVERRIDES
2596 	os_free(ssid->ht_mcs);
2597 #endif /* CONFIG_HT_OVERRIDES */
2598 #ifdef CONFIG_MESH
2599 	os_free(ssid->mesh_basic_rates);
2600 #endif /* CONFIG_MESH */
2601 #ifdef CONFIG_HS20
2602 	os_free(ssid->roaming_consortium_selection);
2603 #endif /* CONFIG_HS20 */
2604 	os_free(ssid->dpp_connector);
2605 	bin_clear_free(ssid->dpp_netaccesskey, ssid->dpp_netaccesskey_len);
2606 	os_free(ssid->dpp_csign);
2607 	while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry,
2608 				    list))) {
2609 		dl_list_del(&psk->list);
2610 		bin_clear_free(psk, sizeof(*psk));
2611 	}
2612 	bin_clear_free(ssid, sizeof(*ssid));
2613 }
2614 
2615 
wpa_config_free_cred(struct wpa_cred * cred)2616 void wpa_config_free_cred(struct wpa_cred *cred)
2617 {
2618 	size_t i;
2619 
2620 	os_free(cred->realm);
2621 	str_clear_free(cred->username);
2622 	str_clear_free(cred->password);
2623 	os_free(cred->ca_cert);
2624 	os_free(cred->client_cert);
2625 	os_free(cred->private_key);
2626 	str_clear_free(cred->private_key_passwd);
2627 	os_free(cred->imsi);
2628 	str_clear_free(cred->milenage);
2629 	for (i = 0; i < cred->num_domain; i++)
2630 		os_free(cred->domain[i]);
2631 	os_free(cred->domain);
2632 	os_free(cred->domain_suffix_match);
2633 	os_free(cred->eap_method);
2634 	os_free(cred->phase1);
2635 	os_free(cred->phase2);
2636 	os_free(cred->excluded_ssid);
2637 	os_free(cred->roaming_partner);
2638 	os_free(cred->provisioning_sp);
2639 	for (i = 0; i < cred->num_req_conn_capab; i++)
2640 		os_free(cred->req_conn_capab_port[i]);
2641 	os_free(cred->req_conn_capab_port);
2642 	os_free(cred->req_conn_capab_proto);
2643 	os_free(cred);
2644 }
2645 
2646 
wpa_config_flush_blobs(struct wpa_config * config)2647 void wpa_config_flush_blobs(struct wpa_config *config)
2648 {
2649 #ifndef CONFIG_NO_CONFIG_BLOBS
2650 	struct wpa_config_blob *blob, *prev;
2651 
2652 	blob = config->blobs;
2653 	config->blobs = NULL;
2654 	while (blob) {
2655 		prev = blob;
2656 		blob = blob->next;
2657 		wpa_config_free_blob(prev);
2658 	}
2659 #endif /* CONFIG_NO_CONFIG_BLOBS */
2660 }
2661 
2662 
2663 /**
2664  * wpa_config_free - Free configuration data
2665  * @config: Configuration data from wpa_config_read()
2666  *
2667  * This function frees all resources allocated for the configuration data by
2668  * wpa_config_read().
2669  */
wpa_config_free(struct wpa_config * config)2670 void wpa_config_free(struct wpa_config *config)
2671 {
2672 	struct wpa_ssid *ssid, *prev = NULL;
2673 	struct wpa_cred *cred, *cprev;
2674 	int i;
2675 
2676 	ssid = config->ssid;
2677 	while (ssid) {
2678 		prev = ssid;
2679 		ssid = ssid->next;
2680 		wpa_config_free_ssid(prev);
2681 	}
2682 
2683 	cred = config->cred;
2684 	while (cred) {
2685 		cprev = cred;
2686 		cred = cred->next;
2687 		wpa_config_free_cred(cprev);
2688 	}
2689 
2690 	wpa_config_flush_blobs(config);
2691 
2692 	wpabuf_free(config->wps_vendor_ext_m1);
2693 	for (i = 0; i < MAX_WPS_VENDOR_EXT; i++)
2694 		wpabuf_free(config->wps_vendor_ext[i]);
2695 	os_free(config->ctrl_interface);
2696 	os_free(config->ctrl_interface_group);
2697 	os_free(config->opensc_engine_path);
2698 	os_free(config->pkcs11_engine_path);
2699 	os_free(config->pkcs11_module_path);
2700 	os_free(config->openssl_ciphers);
2701 	os_free(config->pcsc_reader);
2702 	str_clear_free(config->pcsc_pin);
2703 	os_free(config->driver_param);
2704 	os_free(config->device_name);
2705 	os_free(config->manufacturer);
2706 	os_free(config->model_name);
2707 	os_free(config->model_number);
2708 	os_free(config->serial_number);
2709 	os_free(config->config_methods);
2710 	os_free(config->p2p_ssid_postfix);
2711 	os_free(config->pssid);
2712 	os_free(config->p2p_pref_chan);
2713 	os_free(config->p2p_no_go_freq.range);
2714 	os_free(config->autoscan);
2715 	os_free(config->freq_list);
2716 	wpabuf_free(config->wps_nfc_dh_pubkey);
2717 	wpabuf_free(config->wps_nfc_dh_privkey);
2718 	wpabuf_free(config->wps_nfc_dev_pw);
2719 	os_free(config->ext_password_backend);
2720 	os_free(config->sae_groups);
2721 	wpabuf_free(config->ap_vendor_elements);
2722 	os_free(config->osu_dir);
2723 	os_free(config->bgscan);
2724 	os_free(config->wowlan_triggers);
2725 	os_free(config->fst_group_id);
2726 	os_free(config->sched_scan_plans);
2727 #ifdef CONFIG_MBO
2728 	os_free(config->non_pref_chan);
2729 #endif /* CONFIG_MBO */
2730 
2731 	os_free(config);
2732 }
2733 
2734 
2735 /**
2736  * wpa_config_foreach_network - Iterate over each configured network
2737  * @config: Configuration data from wpa_config_read()
2738  * @func: Callback function to process each network
2739  * @arg: Opaque argument to pass to callback function
2740  *
2741  * Iterate over the set of configured networks calling the specified
2742  * function for each item. We guard against callbacks removing the
2743  * supplied network.
2744  */
wpa_config_foreach_network(struct wpa_config * config,void (* func)(void *,struct wpa_ssid *),void * arg)2745 void wpa_config_foreach_network(struct wpa_config *config,
2746 				void (*func)(void *, struct wpa_ssid *),
2747 				void *arg)
2748 {
2749 	struct wpa_ssid *ssid, *next;
2750 
2751 	ssid = config->ssid;
2752 	while (ssid) {
2753 		next = ssid->next;
2754 		func(arg, ssid);
2755 		ssid = next;
2756 	}
2757 }
2758 
2759 
2760 /**
2761  * wpa_config_get_network - Get configured network based on id
2762  * @config: Configuration data from wpa_config_read()
2763  * @id: Unique network id to search for
2764  * Returns: Network configuration or %NULL if not found
2765  */
wpa_config_get_network(struct wpa_config * config,int id)2766 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
2767 {
2768 	struct wpa_ssid *ssid;
2769 
2770 	ssid = config->ssid;
2771 	while (ssid) {
2772 		if (id == ssid->id)
2773 			break;
2774 		ssid = ssid->next;
2775 	}
2776 
2777 	return ssid;
2778 }
2779 
2780 
2781 /**
2782  * wpa_config_add_network - Add a new network with empty configuration
2783  * @config: Configuration data from wpa_config_read()
2784  * Returns: The new network configuration or %NULL if operation failed
2785  */
wpa_config_add_network(struct wpa_config * config)2786 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
2787 {
2788 	int id;
2789 	struct wpa_ssid *ssid, *last = NULL;
2790 
2791 	id = -1;
2792 	ssid = config->ssid;
2793 	while (ssid) {
2794 		if (ssid->id > id)
2795 			id = ssid->id;
2796 		last = ssid;
2797 		ssid = ssid->next;
2798 	}
2799 	id++;
2800 
2801 	ssid = os_zalloc(sizeof(*ssid));
2802 	if (ssid == NULL)
2803 		return NULL;
2804 	ssid->id = id;
2805 	dl_list_init(&ssid->psk_list);
2806 	if (last)
2807 		last->next = ssid;
2808 	else
2809 		config->ssid = ssid;
2810 
2811 	wpa_config_update_prio_list(config);
2812 
2813 	return ssid;
2814 }
2815 
2816 
2817 /**
2818  * wpa_config_remove_network - Remove a configured network based on id
2819  * @config: Configuration data from wpa_config_read()
2820  * @id: Unique network id to search for
2821  * Returns: 0 on success, or -1 if the network was not found
2822  */
wpa_config_remove_network(struct wpa_config * config,int id)2823 int wpa_config_remove_network(struct wpa_config *config, int id)
2824 {
2825 	struct wpa_ssid *ssid, *prev = NULL;
2826 
2827 	ssid = config->ssid;
2828 	while (ssid) {
2829 		if (id == ssid->id)
2830 			break;
2831 		prev = ssid;
2832 		ssid = ssid->next;
2833 	}
2834 
2835 	if (ssid == NULL)
2836 		return -1;
2837 
2838 	if (prev)
2839 		prev->next = ssid->next;
2840 	else
2841 		config->ssid = ssid->next;
2842 
2843 	wpa_config_update_prio_list(config);
2844 	wpa_config_free_ssid(ssid);
2845 	return 0;
2846 }
2847 
2848 
2849 /**
2850  * wpa_config_set_network_defaults - Set network default values
2851  * @ssid: Pointer to network configuration data
2852  */
wpa_config_set_network_defaults(struct wpa_ssid * ssid)2853 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2854 {
2855 	ssid->proto = DEFAULT_PROTO;
2856 	ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2857 	ssid->group_cipher = DEFAULT_GROUP;
2858 	ssid->key_mgmt = DEFAULT_KEY_MGMT;
2859 	ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2860 	ssid->ht = 1;
2861 #ifdef IEEE8021X_EAPOL
2862 	ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2863 	ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2864 	ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2865 	ssid->eap.sim_num = DEFAULT_USER_SELECTED_SIM;
2866 #endif /* IEEE8021X_EAPOL */
2867 #ifdef CONFIG_MESH
2868 	ssid->dot11MeshMaxRetries = DEFAULT_MESH_MAX_RETRIES;
2869 	ssid->dot11MeshRetryTimeout = DEFAULT_MESH_RETRY_TIMEOUT;
2870 	ssid->dot11MeshConfirmTimeout = DEFAULT_MESH_CONFIRM_TIMEOUT;
2871 	ssid->dot11MeshHoldingTimeout = DEFAULT_MESH_HOLDING_TIMEOUT;
2872 	ssid->mesh_rssi_threshold = DEFAULT_MESH_RSSI_THRESHOLD;
2873 #endif /* CONFIG_MESH */
2874 #ifdef CONFIG_HT_OVERRIDES
2875 	ssid->disable_ht = DEFAULT_DISABLE_HT;
2876 	ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2877 	ssid->disable_sgi = DEFAULT_DISABLE_SGI;
2878 	ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
2879 	ssid->tx_stbc = DEFAULT_TX_STBC;
2880 	ssid->rx_stbc = DEFAULT_RX_STBC;
2881 	ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2882 	ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2883 	ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2884 #endif /* CONFIG_HT_OVERRIDES */
2885 #ifdef CONFIG_VHT_OVERRIDES
2886 	ssid->vht_rx_mcs_nss_1 = -1;
2887 	ssid->vht_rx_mcs_nss_2 = -1;
2888 	ssid->vht_rx_mcs_nss_3 = -1;
2889 	ssid->vht_rx_mcs_nss_4 = -1;
2890 	ssid->vht_rx_mcs_nss_5 = -1;
2891 	ssid->vht_rx_mcs_nss_6 = -1;
2892 	ssid->vht_rx_mcs_nss_7 = -1;
2893 	ssid->vht_rx_mcs_nss_8 = -1;
2894 	ssid->vht_tx_mcs_nss_1 = -1;
2895 	ssid->vht_tx_mcs_nss_2 = -1;
2896 	ssid->vht_tx_mcs_nss_3 = -1;
2897 	ssid->vht_tx_mcs_nss_4 = -1;
2898 	ssid->vht_tx_mcs_nss_5 = -1;
2899 	ssid->vht_tx_mcs_nss_6 = -1;
2900 	ssid->vht_tx_mcs_nss_7 = -1;
2901 	ssid->vht_tx_mcs_nss_8 = -1;
2902 #endif /* CONFIG_VHT_OVERRIDES */
2903 	ssid->proactive_key_caching = -1;
2904 #ifdef CONFIG_IEEE80211W
2905 	ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2906 #endif /* CONFIG_IEEE80211W */
2907 #ifdef CONFIG_MACSEC
2908 	ssid->mka_priority = DEFAULT_PRIO_NOT_KEY_SERVER;
2909 #endif /* CONFIG_MACSEC */
2910 	ssid->mac_addr = -1;
2911 	ssid->max_oper_chwidth = DEFAULT_MAX_OPER_CHWIDTH;
2912 }
2913 
2914 
2915 /**
2916  * wpa_config_set - Set a variable in network configuration
2917  * @ssid: Pointer to network configuration data
2918  * @var: Variable name, e.g., "ssid"
2919  * @value: Variable value
2920  * @line: Line number in configuration file or 0 if not used
2921  * Returns: 0 on success with possible change in the value, 1 on success with
2922  * no change to previously configured value, or -1 on failure
2923  *
2924  * This function can be used to set network configuration variables based on
2925  * both the configuration file and management interface input. The value
2926  * parameter must be in the same format as the text-based configuration file is
2927  * using. For example, strings are using double quotation marks.
2928  */
wpa_config_set(struct wpa_ssid * ssid,const char * var,const char * value,int line)2929 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2930 		   int line)
2931 {
2932 	size_t i;
2933 	int ret = 0;
2934 
2935 	if (ssid == NULL || var == NULL || value == NULL)
2936 		return -1;
2937 
2938 	for (i = 0; i < NUM_SSID_FIELDS; i++) {
2939 		const struct parse_data *field = &ssid_fields[i];
2940 		if (os_strcmp(var, field->name) != 0)
2941 			continue;
2942 
2943 		ret = field->parser(field, ssid, line, value);
2944 		if (ret < 0) {
2945 			if (line) {
2946 				wpa_printf(MSG_ERROR, "Line %d: failed to "
2947 					   "parse %s '%s'.", line, var, value);
2948 			}
2949 			ret = -1;
2950 		}
2951 		break;
2952 	}
2953 	if (i == NUM_SSID_FIELDS) {
2954 		if (line) {
2955 			wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2956 				   "'%s'.", line, var);
2957 		}
2958 		ret = -1;
2959 	}
2960 
2961 	return ret;
2962 }
2963 
2964 
wpa_config_set_quoted(struct wpa_ssid * ssid,const char * var,const char * value)2965 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2966 			  const char *value)
2967 {
2968 	size_t len;
2969 	char *buf;
2970 	int ret;
2971 
2972 	len = os_strlen(value);
2973 	buf = os_malloc(len + 3);
2974 	if (buf == NULL)
2975 		return -1;
2976 	buf[0] = '"';
2977 	os_memcpy(buf + 1, value, len);
2978 	buf[len + 1] = '"';
2979 	buf[len + 2] = '\0';
2980 	ret = wpa_config_set(ssid, var, buf, 0);
2981 	os_free(buf);
2982 	return ret;
2983 }
2984 
2985 
2986 /**
2987  * wpa_config_get_all - Get all options from network configuration
2988  * @ssid: Pointer to network configuration data
2989  * @get_keys: Determines if keys/passwords will be included in returned list
2990  *	(if they may be exported)
2991  * Returns: %NULL terminated list of all set keys and their values in the form
2992  * of [key1, val1, key2, val2, ... , NULL]
2993  *
2994  * This function can be used to get list of all configured network properties.
2995  * The caller is responsible for freeing the returned list and all its
2996  * elements.
2997  */
wpa_config_get_all(struct wpa_ssid * ssid,int get_keys)2998 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2999 {
3000 #ifdef NO_CONFIG_WRITE
3001 	return NULL;
3002 #else /* NO_CONFIG_WRITE */
3003 	const struct parse_data *field;
3004 	char *key, *value;
3005 	size_t i;
3006 	char **props;
3007 	int fields_num;
3008 
3009 	get_keys = get_keys && ssid->export_keys;
3010 
3011 	props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
3012 	if (!props)
3013 		return NULL;
3014 
3015 	fields_num = 0;
3016 	for (i = 0; i < NUM_SSID_FIELDS; i++) {
3017 		field = &ssid_fields[i];
3018 		if (field->key_data && !get_keys)
3019 			continue;
3020 		value = field->writer(field, ssid);
3021 		if (value == NULL)
3022 			continue;
3023 		if (os_strlen(value) == 0) {
3024 			os_free(value);
3025 			continue;
3026 		}
3027 
3028 		key = os_strdup(field->name);
3029 		if (key == NULL) {
3030 			os_free(value);
3031 			goto err;
3032 		}
3033 
3034 		props[fields_num * 2] = key;
3035 		props[fields_num * 2 + 1] = value;
3036 
3037 		fields_num++;
3038 	}
3039 
3040 	return props;
3041 
3042 err:
3043 	for (i = 0; props[i]; i++)
3044 		os_free(props[i]);
3045 	os_free(props);
3046 	return NULL;
3047 #endif /* NO_CONFIG_WRITE */
3048 }
3049 
3050 
3051 #ifndef NO_CONFIG_WRITE
3052 /**
3053  * wpa_config_get - Get a variable in network configuration
3054  * @ssid: Pointer to network configuration data
3055  * @var: Variable name, e.g., "ssid"
3056  * Returns: Value of the variable or %NULL on failure
3057  *
3058  * This function can be used to get network configuration variables. The
3059  * returned value is a copy of the configuration variable in text format, i.e,.
3060  * the same format that the text-based configuration file and wpa_config_set()
3061  * are using for the value. The caller is responsible for freeing the returned
3062  * value.
3063  */
wpa_config_get(struct wpa_ssid * ssid,const char * var)3064 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
3065 {
3066 	size_t i;
3067 
3068 	if (ssid == NULL || var == NULL)
3069 		return NULL;
3070 
3071 	for (i = 0; i < NUM_SSID_FIELDS; i++) {
3072 		const struct parse_data *field = &ssid_fields[i];
3073 		if (os_strcmp(var, field->name) == 0) {
3074 			char *ret = field->writer(field, ssid);
3075 
3076 			if (ret && has_newline(ret)) {
3077 				wpa_printf(MSG_ERROR,
3078 					   "Found newline in value for %s; not returning it",
3079 					   var);
3080 				os_free(ret);
3081 				ret = NULL;
3082 			}
3083 
3084 			return ret;
3085 		}
3086 	}
3087 
3088 	return NULL;
3089 }
3090 
3091 
3092 /**
3093  * wpa_config_get_no_key - Get a variable in network configuration (no keys)
3094  * @ssid: Pointer to network configuration data
3095  * @var: Variable name, e.g., "ssid"
3096  * Returns: Value of the variable or %NULL on failure
3097  *
3098  * This function can be used to get network configuration variable like
3099  * wpa_config_get(). The only difference is that this functions does not expose
3100  * key/password material from the configuration. In case a key/password field
3101  * is requested, the returned value is an empty string or %NULL if the variable
3102  * is not set or "*" if the variable is set (regardless of its value). The
3103  * returned value is a copy of the configuration variable in text format, i.e,.
3104  * the same format that the text-based configuration file and wpa_config_set()
3105  * are using for the value. The caller is responsible for freeing the returned
3106  * value.
3107  */
wpa_config_get_no_key(struct wpa_ssid * ssid,const char * var)3108 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
3109 {
3110 	size_t i;
3111 
3112 	if (ssid == NULL || var == NULL)
3113 		return NULL;
3114 
3115 	for (i = 0; i < NUM_SSID_FIELDS; i++) {
3116 		const struct parse_data *field = &ssid_fields[i];
3117 		if (os_strcmp(var, field->name) == 0) {
3118 			char *res = field->writer(field, ssid);
3119 			if (field->key_data) {
3120 				if (res && res[0]) {
3121 					wpa_printf(MSG_DEBUG, "Do not allow "
3122 						   "key_data field to be "
3123 						   "exposed");
3124 					str_clear_free(res);
3125 					return os_strdup("*");
3126 				}
3127 
3128 				os_free(res);
3129 				return NULL;
3130 			}
3131 			return res;
3132 		}
3133 	}
3134 
3135 	return NULL;
3136 }
3137 #endif /* NO_CONFIG_WRITE */
3138 
3139 
3140 /**
3141  * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
3142  * @ssid: Pointer to network configuration data
3143  *
3144  * This function must be called to update WPA PSK when either SSID or the
3145  * passphrase has changed for the network configuration.
3146  */
wpa_config_update_psk(struct wpa_ssid * ssid)3147 void wpa_config_update_psk(struct wpa_ssid *ssid)
3148 {
3149 #ifndef CONFIG_NO_PBKDF2
3150 	pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
3151 		    ssid->psk, PMK_LEN);
3152 	wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
3153 			ssid->psk, PMK_LEN);
3154 	ssid->psk_set = 1;
3155 #endif /* CONFIG_NO_PBKDF2 */
3156 }
3157 
3158 
wpa_config_set_cred_req_conn_capab(struct wpa_cred * cred,const char * value)3159 static int wpa_config_set_cred_req_conn_capab(struct wpa_cred *cred,
3160 					      const char *value)
3161 {
3162 	u8 *proto;
3163 	int **port;
3164 	int *ports, *nports;
3165 	const char *pos;
3166 	unsigned int num_ports;
3167 
3168 	proto = os_realloc_array(cred->req_conn_capab_proto,
3169 				 cred->num_req_conn_capab + 1, sizeof(u8));
3170 	if (proto == NULL)
3171 		return -1;
3172 	cred->req_conn_capab_proto = proto;
3173 
3174 	port = os_realloc_array(cred->req_conn_capab_port,
3175 				cred->num_req_conn_capab + 1, sizeof(int *));
3176 	if (port == NULL)
3177 		return -1;
3178 	cred->req_conn_capab_port = port;
3179 
3180 	proto[cred->num_req_conn_capab] = atoi(value);
3181 
3182 	pos = os_strchr(value, ':');
3183 	if (pos == NULL) {
3184 		port[cred->num_req_conn_capab] = NULL;
3185 		cred->num_req_conn_capab++;
3186 		return 0;
3187 	}
3188 	pos++;
3189 
3190 	ports = NULL;
3191 	num_ports = 0;
3192 
3193 	while (*pos) {
3194 		nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
3195 		if (nports == NULL) {
3196 			os_free(ports);
3197 			return -1;
3198 		}
3199 		ports = nports;
3200 		ports[num_ports++] = atoi(pos);
3201 
3202 		pos = os_strchr(pos, ',');
3203 		if (pos == NULL)
3204 			break;
3205 		pos++;
3206 	}
3207 
3208 	nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
3209 	if (nports == NULL) {
3210 		os_free(ports);
3211 		return -1;
3212 	}
3213 	ports = nports;
3214 	ports[num_ports] = -1;
3215 
3216 	port[cred->num_req_conn_capab] = ports;
3217 	cred->num_req_conn_capab++;
3218 	return 0;
3219 }
3220 
3221 
wpa_config_set_cred_roaming_consortiums(struct wpa_cred * cred,const char * value)3222 static int wpa_config_set_cred_roaming_consortiums(struct wpa_cred *cred,
3223 						   const char *value)
3224 {
3225 	u8 roaming_consortiums[MAX_ROAMING_CONS][MAX_ROAMING_CONS_OI_LEN];
3226 	size_t roaming_consortiums_len[MAX_ROAMING_CONS];
3227 	unsigned int num_roaming_consortiums = 0;
3228 	const char *pos, *end;
3229 	size_t len;
3230 
3231 	os_memset(roaming_consortiums, 0, sizeof(roaming_consortiums));
3232 	os_memset(roaming_consortiums_len, 0, sizeof(roaming_consortiums_len));
3233 
3234 	for (pos = value;;) {
3235 		end = os_strchr(pos, ',');
3236 		len = end ? (size_t) (end - pos) : os_strlen(pos);
3237 		if (!end && len == 0)
3238 			break;
3239 		if (len == 0 || (len & 1) != 0 ||
3240 		    len / 2 > MAX_ROAMING_CONS_OI_LEN ||
3241 		    hexstr2bin(pos,
3242 			       roaming_consortiums[num_roaming_consortiums],
3243 			       len / 2) < 0) {
3244 			wpa_printf(MSG_INFO,
3245 				   "Invalid roaming_consortiums entry: %s",
3246 				   pos);
3247 			return -1;
3248 		}
3249 		roaming_consortiums_len[num_roaming_consortiums] = len / 2;
3250 		num_roaming_consortiums++;
3251 
3252 		if (!end)
3253 			break;
3254 
3255 		if (num_roaming_consortiums >= MAX_ROAMING_CONS) {
3256 			wpa_printf(MSG_INFO,
3257 				   "Too many roaming_consortiums OIs");
3258 			return -1;
3259 		}
3260 
3261 		pos = end + 1;
3262 	}
3263 
3264 	os_memcpy(cred->roaming_consortiums, roaming_consortiums,
3265 		  sizeof(roaming_consortiums));
3266 	os_memcpy(cred->roaming_consortiums_len, roaming_consortiums_len,
3267 		  sizeof(roaming_consortiums_len));
3268 	cred->num_roaming_consortiums = num_roaming_consortiums;
3269 
3270 	return 0;
3271 }
3272 
3273 
wpa_config_set_cred(struct wpa_cred * cred,const char * var,const char * value,int line)3274 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
3275 			const char *value, int line)
3276 {
3277 	char *val;
3278 	size_t len;
3279 	int res;
3280 
3281 	if (os_strcmp(var, "temporary") == 0) {
3282 		cred->temporary = atoi(value);
3283 		return 0;
3284 	}
3285 
3286 	if (os_strcmp(var, "priority") == 0) {
3287 		cred->priority = atoi(value);
3288 		return 0;
3289 	}
3290 
3291 	if (os_strcmp(var, "sp_priority") == 0) {
3292 		int prio = atoi(value);
3293 		if (prio < 0 || prio > 255)
3294 			return -1;
3295 		cred->sp_priority = prio;
3296 		return 0;
3297 	}
3298 
3299 	if (os_strcmp(var, "pcsc") == 0) {
3300 		cred->pcsc = atoi(value);
3301 		return 0;
3302 	}
3303 
3304 	if (os_strcmp(var, "eap") == 0) {
3305 		struct eap_method_type method;
3306 		method.method = eap_peer_get_type(value, &method.vendor);
3307 		if (method.vendor == EAP_VENDOR_IETF &&
3308 		    method.method == EAP_TYPE_NONE) {
3309 			wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
3310 				   "for a credential", line, value);
3311 			return -1;
3312 		}
3313 		os_free(cred->eap_method);
3314 		cred->eap_method = os_malloc(sizeof(*cred->eap_method));
3315 		if (cred->eap_method == NULL)
3316 			return -1;
3317 		os_memcpy(cred->eap_method, &method, sizeof(method));
3318 		return 0;
3319 	}
3320 
3321 	if (os_strcmp(var, "password") == 0 &&
3322 	    os_strncmp(value, "ext:", 4) == 0) {
3323 		if (has_newline(value))
3324 			return -1;
3325 		str_clear_free(cred->password);
3326 		cred->password = os_strdup(value);
3327 		cred->ext_password = 1;
3328 		return 0;
3329 	}
3330 
3331 	if (os_strcmp(var, "update_identifier") == 0) {
3332 		cred->update_identifier = atoi(value);
3333 		return 0;
3334 	}
3335 
3336 	if (os_strcmp(var, "min_dl_bandwidth_home") == 0) {
3337 		cred->min_dl_bandwidth_home = atoi(value);
3338 		return 0;
3339 	}
3340 
3341 	if (os_strcmp(var, "min_ul_bandwidth_home") == 0) {
3342 		cred->min_ul_bandwidth_home = atoi(value);
3343 		return 0;
3344 	}
3345 
3346 	if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0) {
3347 		cred->min_dl_bandwidth_roaming = atoi(value);
3348 		return 0;
3349 	}
3350 
3351 	if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0) {
3352 		cred->min_ul_bandwidth_roaming = atoi(value);
3353 		return 0;
3354 	}
3355 
3356 	if (os_strcmp(var, "max_bss_load") == 0) {
3357 		cred->max_bss_load = atoi(value);
3358 		return 0;
3359 	}
3360 
3361 	if (os_strcmp(var, "req_conn_capab") == 0)
3362 		return wpa_config_set_cred_req_conn_capab(cred, value);
3363 
3364 	if (os_strcmp(var, "ocsp") == 0) {
3365 		cred->ocsp = atoi(value);
3366 		return 0;
3367 	}
3368 
3369 	if (os_strcmp(var, "sim_num") == 0) {
3370 		cred->sim_num = atoi(value);
3371 		return 0;
3372 	}
3373 
3374 	val = wpa_config_parse_string(value, &len);
3375 	if (val == NULL ||
3376 	    (os_strcmp(var, "excluded_ssid") != 0 &&
3377 	     os_strcmp(var, "roaming_consortium") != 0 &&
3378 	     os_strcmp(var, "required_roaming_consortium") != 0 &&
3379 	     has_newline(val))) {
3380 		wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
3381 			   "value '%s'.", line, var, value);
3382 		os_free(val);
3383 		return -1;
3384 	}
3385 
3386 	if (os_strcmp(var, "realm") == 0) {
3387 		os_free(cred->realm);
3388 		cred->realm = val;
3389 		return 0;
3390 	}
3391 
3392 	if (os_strcmp(var, "username") == 0) {
3393 		str_clear_free(cred->username);
3394 		cred->username = val;
3395 		return 0;
3396 	}
3397 
3398 	if (os_strcmp(var, "password") == 0) {
3399 		str_clear_free(cred->password);
3400 		cred->password = val;
3401 		cred->ext_password = 0;
3402 		return 0;
3403 	}
3404 
3405 	if (os_strcmp(var, "ca_cert") == 0) {
3406 		os_free(cred->ca_cert);
3407 		cred->ca_cert = val;
3408 		return 0;
3409 	}
3410 
3411 	if (os_strcmp(var, "client_cert") == 0) {
3412 		os_free(cred->client_cert);
3413 		cred->client_cert = val;
3414 		return 0;
3415 	}
3416 
3417 	if (os_strcmp(var, "private_key") == 0) {
3418 		os_free(cred->private_key);
3419 		cred->private_key = val;
3420 		return 0;
3421 	}
3422 
3423 	if (os_strcmp(var, "private_key_passwd") == 0) {
3424 		str_clear_free(cred->private_key_passwd);
3425 		cred->private_key_passwd = val;
3426 		return 0;
3427 	}
3428 
3429 	if (os_strcmp(var, "imsi") == 0) {
3430 		os_free(cred->imsi);
3431 		cred->imsi = val;
3432 		return 0;
3433 	}
3434 
3435 	if (os_strcmp(var, "milenage") == 0) {
3436 		str_clear_free(cred->milenage);
3437 		cred->milenage = val;
3438 		return 0;
3439 	}
3440 
3441 	if (os_strcmp(var, "domain_suffix_match") == 0) {
3442 		os_free(cred->domain_suffix_match);
3443 		cred->domain_suffix_match = val;
3444 		return 0;
3445 	}
3446 
3447 	if (os_strcmp(var, "domain") == 0) {
3448 		char **new_domain;
3449 		new_domain = os_realloc_array(cred->domain,
3450 					      cred->num_domain + 1,
3451 					      sizeof(char *));
3452 		if (new_domain == NULL) {
3453 			os_free(val);
3454 			return -1;
3455 		}
3456 		new_domain[cred->num_domain++] = val;
3457 		cred->domain = new_domain;
3458 		return 0;
3459 	}
3460 
3461 	if (os_strcmp(var, "phase1") == 0) {
3462 		os_free(cred->phase1);
3463 		cred->phase1 = val;
3464 		return 0;
3465 	}
3466 
3467 	if (os_strcmp(var, "phase2") == 0) {
3468 		os_free(cred->phase2);
3469 		cred->phase2 = val;
3470 		return 0;
3471 	}
3472 
3473 	if (os_strcmp(var, "roaming_consortium") == 0) {
3474 		if (len < 3 || len > sizeof(cred->roaming_consortium)) {
3475 			wpa_printf(MSG_ERROR, "Line %d: invalid "
3476 				   "roaming_consortium length %d (3..15 "
3477 				   "expected)", line, (int) len);
3478 			os_free(val);
3479 			return -1;
3480 		}
3481 		os_memcpy(cred->roaming_consortium, val, len);
3482 		cred->roaming_consortium_len = len;
3483 		os_free(val);
3484 		return 0;
3485 	}
3486 
3487 	if (os_strcmp(var, "required_roaming_consortium") == 0) {
3488 		if (len < 3 || len > sizeof(cred->required_roaming_consortium))
3489 		{
3490 			wpa_printf(MSG_ERROR, "Line %d: invalid "
3491 				   "required_roaming_consortium length %d "
3492 				   "(3..15 expected)", line, (int) len);
3493 			os_free(val);
3494 			return -1;
3495 		}
3496 		os_memcpy(cred->required_roaming_consortium, val, len);
3497 		cred->required_roaming_consortium_len = len;
3498 		os_free(val);
3499 		return 0;
3500 	}
3501 
3502 	if (os_strcmp(var, "roaming_consortiums") == 0) {
3503 		res = wpa_config_set_cred_roaming_consortiums(cred, val);
3504 		if (res < 0)
3505 			wpa_printf(MSG_ERROR,
3506 				   "Line %d: invalid roaming_consortiums",
3507 				   line);
3508 		os_free(val);
3509 		return res;
3510 	}
3511 
3512 	if (os_strcmp(var, "excluded_ssid") == 0) {
3513 		struct excluded_ssid *e;
3514 
3515 		if (len > SSID_MAX_LEN) {
3516 			wpa_printf(MSG_ERROR, "Line %d: invalid "
3517 				   "excluded_ssid length %d", line, (int) len);
3518 			os_free(val);
3519 			return -1;
3520 		}
3521 
3522 		e = os_realloc_array(cred->excluded_ssid,
3523 				     cred->num_excluded_ssid + 1,
3524 				     sizeof(struct excluded_ssid));
3525 		if (e == NULL) {
3526 			os_free(val);
3527 			return -1;
3528 		}
3529 		cred->excluded_ssid = e;
3530 
3531 		e = &cred->excluded_ssid[cred->num_excluded_ssid++];
3532 		os_memcpy(e->ssid, val, len);
3533 		e->ssid_len = len;
3534 
3535 		os_free(val);
3536 
3537 		return 0;
3538 	}
3539 
3540 	if (os_strcmp(var, "roaming_partner") == 0) {
3541 		struct roaming_partner *p;
3542 		char *pos;
3543 
3544 		p = os_realloc_array(cred->roaming_partner,
3545 				     cred->num_roaming_partner + 1,
3546 				     sizeof(struct roaming_partner));
3547 		if (p == NULL) {
3548 			os_free(val);
3549 			return -1;
3550 		}
3551 		cred->roaming_partner = p;
3552 
3553 		p = &cred->roaming_partner[cred->num_roaming_partner];
3554 
3555 		pos = os_strchr(val, ',');
3556 		if (pos == NULL) {
3557 			os_free(val);
3558 			return -1;
3559 		}
3560 		*pos++ = '\0';
3561 		if (pos - val - 1 >= (int) sizeof(p->fqdn)) {
3562 			os_free(val);
3563 			return -1;
3564 		}
3565 		os_memcpy(p->fqdn, val, pos - val);
3566 
3567 		p->exact_match = atoi(pos);
3568 
3569 		pos = os_strchr(pos, ',');
3570 		if (pos == NULL) {
3571 			os_free(val);
3572 			return -1;
3573 		}
3574 		*pos++ = '\0';
3575 
3576 		p->priority = atoi(pos);
3577 
3578 		pos = os_strchr(pos, ',');
3579 		if (pos == NULL) {
3580 			os_free(val);
3581 			return -1;
3582 		}
3583 		*pos++ = '\0';
3584 
3585 		if (os_strlen(pos) >= sizeof(p->country)) {
3586 			os_free(val);
3587 			return -1;
3588 		}
3589 		os_memcpy(p->country, pos, os_strlen(pos) + 1);
3590 
3591 		cred->num_roaming_partner++;
3592 		os_free(val);
3593 
3594 		return 0;
3595 	}
3596 
3597 	if (os_strcmp(var, "provisioning_sp") == 0) {
3598 		os_free(cred->provisioning_sp);
3599 		cred->provisioning_sp = val;
3600 		return 0;
3601 	}
3602 
3603 	if (line) {
3604 		wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
3605 			   line, var);
3606 	}
3607 
3608 	os_free(val);
3609 
3610 	return -1;
3611 }
3612 
3613 
alloc_int_str(int val)3614 static char * alloc_int_str(int val)
3615 {
3616 	const unsigned int bufsize = 20;
3617 	char *buf;
3618 	int res;
3619 
3620 	buf = os_malloc(bufsize);
3621 	if (buf == NULL)
3622 		return NULL;
3623 	res = os_snprintf(buf, bufsize, "%d", val);
3624 	if (os_snprintf_error(bufsize, res)) {
3625 		os_free(buf);
3626 		buf = NULL;
3627 	}
3628 	return buf;
3629 }
3630 
3631 
alloc_strdup(const char * str)3632 static char * alloc_strdup(const char *str)
3633 {
3634 	if (str == NULL)
3635 		return NULL;
3636 	return os_strdup(str);
3637 }
3638 
3639 
wpa_config_get_cred_no_key(struct wpa_cred * cred,const char * var)3640 char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var)
3641 {
3642 	if (os_strcmp(var, "temporary") == 0)
3643 		return alloc_int_str(cred->temporary);
3644 
3645 	if (os_strcmp(var, "priority") == 0)
3646 		return alloc_int_str(cred->priority);
3647 
3648 	if (os_strcmp(var, "sp_priority") == 0)
3649 		return alloc_int_str(cred->sp_priority);
3650 
3651 	if (os_strcmp(var, "pcsc") == 0)
3652 		return alloc_int_str(cred->pcsc);
3653 
3654 	if (os_strcmp(var, "eap") == 0) {
3655 		if (!cred->eap_method)
3656 			return NULL;
3657 		return alloc_strdup(eap_get_name(cred->eap_method[0].vendor,
3658 						 cred->eap_method[0].method));
3659 	}
3660 
3661 	if (os_strcmp(var, "update_identifier") == 0)
3662 		return alloc_int_str(cred->update_identifier);
3663 
3664 	if (os_strcmp(var, "min_dl_bandwidth_home") == 0)
3665 		return alloc_int_str(cred->min_dl_bandwidth_home);
3666 
3667 	if (os_strcmp(var, "min_ul_bandwidth_home") == 0)
3668 		return alloc_int_str(cred->min_ul_bandwidth_home);
3669 
3670 	if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0)
3671 		return alloc_int_str(cred->min_dl_bandwidth_roaming);
3672 
3673 	if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0)
3674 		return alloc_int_str(cred->min_ul_bandwidth_roaming);
3675 
3676 	if (os_strcmp(var, "max_bss_load") == 0)
3677 		return alloc_int_str(cred->max_bss_load);
3678 
3679 	if (os_strcmp(var, "req_conn_capab") == 0) {
3680 		unsigned int i;
3681 		char *buf, *end, *pos;
3682 		int ret;
3683 
3684 		if (!cred->num_req_conn_capab)
3685 			return NULL;
3686 
3687 		buf = os_malloc(4000);
3688 		if (buf == NULL)
3689 			return NULL;
3690 		pos = buf;
3691 		end = pos + 4000;
3692 		for (i = 0; i < cred->num_req_conn_capab; i++) {
3693 			int *ports;
3694 
3695 			ret = os_snprintf(pos, end - pos, "%s%u",
3696 					  i > 0 ? "\n" : "",
3697 					  cred->req_conn_capab_proto[i]);
3698 			if (os_snprintf_error(end - pos, ret))
3699 				return buf;
3700 			pos += ret;
3701 
3702 			ports = cred->req_conn_capab_port[i];
3703 			if (ports) {
3704 				int j;
3705 				for (j = 0; ports[j] != -1; j++) {
3706 					ret = os_snprintf(pos, end - pos,
3707 							  "%s%d",
3708 							  j > 0 ? "," : ":",
3709 							  ports[j]);
3710 					if (os_snprintf_error(end - pos, ret))
3711 						return buf;
3712 					pos += ret;
3713 				}
3714 			}
3715 		}
3716 
3717 		return buf;
3718 	}
3719 
3720 	if (os_strcmp(var, "ocsp") == 0)
3721 		return alloc_int_str(cred->ocsp);
3722 
3723 	if (os_strcmp(var, "realm") == 0)
3724 		return alloc_strdup(cred->realm);
3725 
3726 	if (os_strcmp(var, "username") == 0)
3727 		return alloc_strdup(cred->username);
3728 
3729 	if (os_strcmp(var, "password") == 0) {
3730 		if (!cred->password)
3731 			return NULL;
3732 		return alloc_strdup("*");
3733 	}
3734 
3735 	if (os_strcmp(var, "ca_cert") == 0)
3736 		return alloc_strdup(cred->ca_cert);
3737 
3738 	if (os_strcmp(var, "client_cert") == 0)
3739 		return alloc_strdup(cred->client_cert);
3740 
3741 	if (os_strcmp(var, "private_key") == 0)
3742 		return alloc_strdup(cred->private_key);
3743 
3744 	if (os_strcmp(var, "private_key_passwd") == 0) {
3745 		if (!cred->private_key_passwd)
3746 			return NULL;
3747 		return alloc_strdup("*");
3748 	}
3749 
3750 	if (os_strcmp(var, "imsi") == 0)
3751 		return alloc_strdup(cred->imsi);
3752 
3753 	if (os_strcmp(var, "milenage") == 0) {
3754 		if (!(cred->milenage))
3755 			return NULL;
3756 		return alloc_strdup("*");
3757 	}
3758 
3759 	if (os_strcmp(var, "domain_suffix_match") == 0)
3760 		return alloc_strdup(cred->domain_suffix_match);
3761 
3762 	if (os_strcmp(var, "domain") == 0) {
3763 		unsigned int i;
3764 		char *buf, *end, *pos;
3765 		int ret;
3766 
3767 		if (!cred->num_domain)
3768 			return NULL;
3769 
3770 		buf = os_malloc(4000);
3771 		if (buf == NULL)
3772 			return NULL;
3773 		pos = buf;
3774 		end = pos + 4000;
3775 
3776 		for (i = 0; i < cred->num_domain; i++) {
3777 			ret = os_snprintf(pos, end - pos, "%s%s",
3778 					  i > 0 ? "\n" : "", cred->domain[i]);
3779 			if (os_snprintf_error(end - pos, ret))
3780 				return buf;
3781 			pos += ret;
3782 		}
3783 
3784 		return buf;
3785 	}
3786 
3787 	if (os_strcmp(var, "phase1") == 0)
3788 		return alloc_strdup(cred->phase1);
3789 
3790 	if (os_strcmp(var, "phase2") == 0)
3791 		return alloc_strdup(cred->phase2);
3792 
3793 	if (os_strcmp(var, "roaming_consortium") == 0) {
3794 		size_t buflen;
3795 		char *buf;
3796 
3797 		if (!cred->roaming_consortium_len)
3798 			return NULL;
3799 		buflen = cred->roaming_consortium_len * 2 + 1;
3800 		buf = os_malloc(buflen);
3801 		if (buf == NULL)
3802 			return NULL;
3803 		wpa_snprintf_hex(buf, buflen, cred->roaming_consortium,
3804 				 cred->roaming_consortium_len);
3805 		return buf;
3806 	}
3807 
3808 	if (os_strcmp(var, "required_roaming_consortium") == 0) {
3809 		size_t buflen;
3810 		char *buf;
3811 
3812 		if (!cred->required_roaming_consortium_len)
3813 			return NULL;
3814 		buflen = cred->required_roaming_consortium_len * 2 + 1;
3815 		buf = os_malloc(buflen);
3816 		if (buf == NULL)
3817 			return NULL;
3818 		wpa_snprintf_hex(buf, buflen, cred->required_roaming_consortium,
3819 				 cred->required_roaming_consortium_len);
3820 		return buf;
3821 	}
3822 
3823 	if (os_strcmp(var, "roaming_consortiums") == 0) {
3824 		size_t buflen;
3825 		char *buf, *pos;
3826 		size_t i;
3827 
3828 		if (!cred->num_roaming_consortiums)
3829 			return NULL;
3830 		buflen = cred->num_roaming_consortiums *
3831 			MAX_ROAMING_CONS_OI_LEN * 2 + 1;
3832 		buf = os_malloc(buflen);
3833 		if (!buf)
3834 			return NULL;
3835 		pos = buf;
3836 		for (i = 0; i < cred->num_roaming_consortiums; i++) {
3837 			if (i > 0)
3838 				*pos++ = ',';
3839 			pos += wpa_snprintf_hex(
3840 				pos, buf + buflen - pos,
3841 				cred->roaming_consortiums[i],
3842 				cred->roaming_consortiums_len[i]);
3843 		}
3844 		*pos = '\0';
3845 		return buf;
3846 	}
3847 
3848 	if (os_strcmp(var, "excluded_ssid") == 0) {
3849 		unsigned int i;
3850 		char *buf, *end, *pos;
3851 
3852 		if (!cred->num_excluded_ssid)
3853 			return NULL;
3854 
3855 		buf = os_malloc(4000);
3856 		if (buf == NULL)
3857 			return NULL;
3858 		pos = buf;
3859 		end = pos + 4000;
3860 
3861 		for (i = 0; i < cred->num_excluded_ssid; i++) {
3862 			struct excluded_ssid *e;
3863 			int ret;
3864 
3865 			e = &cred->excluded_ssid[i];
3866 			ret = os_snprintf(pos, end - pos, "%s%s",
3867 					  i > 0 ? "\n" : "",
3868 					  wpa_ssid_txt(e->ssid, e->ssid_len));
3869 			if (os_snprintf_error(end - pos, ret))
3870 				return buf;
3871 			pos += ret;
3872 		}
3873 
3874 		return buf;
3875 	}
3876 
3877 	if (os_strcmp(var, "roaming_partner") == 0) {
3878 		unsigned int i;
3879 		char *buf, *end, *pos;
3880 
3881 		if (!cred->num_roaming_partner)
3882 			return NULL;
3883 
3884 		buf = os_malloc(4000);
3885 		if (buf == NULL)
3886 			return NULL;
3887 		pos = buf;
3888 		end = pos + 4000;
3889 
3890 		for (i = 0; i < cred->num_roaming_partner; i++) {
3891 			struct roaming_partner *p;
3892 			int ret;
3893 
3894 			p = &cred->roaming_partner[i];
3895 			ret = os_snprintf(pos, end - pos, "%s%s,%d,%u,%s",
3896 					  i > 0 ? "\n" : "",
3897 					  p->fqdn, p->exact_match, p->priority,
3898 					  p->country);
3899 			if (os_snprintf_error(end - pos, ret))
3900 				return buf;
3901 			pos += ret;
3902 		}
3903 
3904 		return buf;
3905 	}
3906 
3907 	if (os_strcmp(var, "provisioning_sp") == 0)
3908 		return alloc_strdup(cred->provisioning_sp);
3909 
3910 	return NULL;
3911 }
3912 
3913 
wpa_config_get_cred(struct wpa_config * config,int id)3914 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
3915 {
3916 	struct wpa_cred *cred;
3917 
3918 	cred = config->cred;
3919 	while (cred) {
3920 		if (id == cred->id)
3921 			break;
3922 		cred = cred->next;
3923 	}
3924 
3925 	return cred;
3926 }
3927 
3928 
wpa_config_add_cred(struct wpa_config * config)3929 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
3930 {
3931 	int id;
3932 	struct wpa_cred *cred, *last = NULL;
3933 
3934 	id = -1;
3935 	cred = config->cred;
3936 	while (cred) {
3937 		if (cred->id > id)
3938 			id = cred->id;
3939 		last = cred;
3940 		cred = cred->next;
3941 	}
3942 	id++;
3943 
3944 	cred = os_zalloc(sizeof(*cred));
3945 	if (cred == NULL)
3946 		return NULL;
3947 	cred->id = id;
3948 	cred->sim_num = DEFAULT_USER_SELECTED_SIM;
3949 	if (last)
3950 		last->next = cred;
3951 	else
3952 		config->cred = cred;
3953 
3954 	return cred;
3955 }
3956 
3957 
wpa_config_remove_cred(struct wpa_config * config,int id)3958 int wpa_config_remove_cred(struct wpa_config *config, int id)
3959 {
3960 	struct wpa_cred *cred, *prev = NULL;
3961 
3962 	cred = config->cred;
3963 	while (cred) {
3964 		if (id == cred->id)
3965 			break;
3966 		prev = cred;
3967 		cred = cred->next;
3968 	}
3969 
3970 	if (cred == NULL)
3971 		return -1;
3972 
3973 	if (prev)
3974 		prev->next = cred->next;
3975 	else
3976 		config->cred = cred->next;
3977 
3978 	wpa_config_free_cred(cred);
3979 	return 0;
3980 }
3981 
3982 
3983 #ifndef CONFIG_NO_CONFIG_BLOBS
3984 /**
3985  * wpa_config_get_blob - Get a named configuration blob
3986  * @config: Configuration data from wpa_config_read()
3987  * @name: Name of the blob
3988  * Returns: Pointer to blob data or %NULL if not found
3989  */
wpa_config_get_blob(struct wpa_config * config,const char * name)3990 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
3991 						   const char *name)
3992 {
3993 	struct wpa_config_blob *blob = config->blobs;
3994 
3995 	while (blob) {
3996 		if (os_strcmp(blob->name, name) == 0)
3997 			return blob;
3998 		blob = blob->next;
3999 	}
4000 	return NULL;
4001 }
4002 
4003 
4004 /**
4005  * wpa_config_set_blob - Set or add a named configuration blob
4006  * @config: Configuration data from wpa_config_read()
4007  * @blob: New value for the blob
4008  *
4009  * Adds a new configuration blob or replaces the current value of an existing
4010  * blob.
4011  */
wpa_config_set_blob(struct wpa_config * config,struct wpa_config_blob * blob)4012 void wpa_config_set_blob(struct wpa_config *config,
4013 			 struct wpa_config_blob *blob)
4014 {
4015 	wpa_config_remove_blob(config, blob->name);
4016 	blob->next = config->blobs;
4017 	config->blobs = blob;
4018 }
4019 
4020 
4021 /**
4022  * wpa_config_free_blob - Free blob data
4023  * @blob: Pointer to blob to be freed
4024  */
wpa_config_free_blob(struct wpa_config_blob * blob)4025 void wpa_config_free_blob(struct wpa_config_blob *blob)
4026 {
4027 	if (blob) {
4028 		os_free(blob->name);
4029 		bin_clear_free(blob->data, blob->len);
4030 		os_free(blob);
4031 	}
4032 }
4033 
4034 
4035 /**
4036  * wpa_config_remove_blob - Remove a named configuration blob
4037  * @config: Configuration data from wpa_config_read()
4038  * @name: Name of the blob to remove
4039  * Returns: 0 if blob was removed or -1 if blob was not found
4040  */
wpa_config_remove_blob(struct wpa_config * config,const char * name)4041 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
4042 {
4043 	struct wpa_config_blob *pos = config->blobs, *prev = NULL;
4044 
4045 	while (pos) {
4046 		if (os_strcmp(pos->name, name) == 0) {
4047 			if (prev)
4048 				prev->next = pos->next;
4049 			else
4050 				config->blobs = pos->next;
4051 			wpa_config_free_blob(pos);
4052 			return 0;
4053 		}
4054 		prev = pos;
4055 		pos = pos->next;
4056 	}
4057 
4058 	return -1;
4059 }
4060 #endif /* CONFIG_NO_CONFIG_BLOBS */
4061 
4062 
4063 /**
4064  * wpa_config_alloc_empty - Allocate an empty configuration
4065  * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
4066  * socket
4067  * @driver_param: Driver parameters
4068  * Returns: Pointer to allocated configuration data or %NULL on failure
4069  */
wpa_config_alloc_empty(const char * ctrl_interface,const char * driver_param)4070 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
4071 					   const char *driver_param)
4072 {
4073 	struct wpa_config *config;
4074 	const int aCWmin = 4, aCWmax = 10;
4075 	const struct hostapd_wmm_ac_params ac_bk =
4076 		{ aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
4077 	const struct hostapd_wmm_ac_params ac_be =
4078 		{ aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
4079 	const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
4080 		{ aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
4081 	const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
4082 		{ aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
4083 
4084 	config = os_zalloc(sizeof(*config));
4085 	if (config == NULL)
4086 		return NULL;
4087 	config->eapol_version = DEFAULT_EAPOL_VERSION;
4088 	config->ap_scan = DEFAULT_AP_SCAN;
4089 	config->user_mpm = DEFAULT_USER_MPM;
4090 	config->max_peer_links = DEFAULT_MAX_PEER_LINKS;
4091 	config->mesh_max_inactivity = DEFAULT_MESH_MAX_INACTIVITY;
4092 	config->dot11RSNASAERetransPeriod =
4093 		DEFAULT_DOT11_RSNA_SAE_RETRANS_PERIOD;
4094 	config->fast_reauth = DEFAULT_FAST_REAUTH;
4095 	config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
4096 	config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
4097 	config->p2p_go_freq_change_policy = DEFAULT_P2P_GO_FREQ_MOVE;
4098 	config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
4099 	config->p2p_optimize_listen_chan = DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN;
4100 	config->p2p_go_ctwindow = DEFAULT_P2P_GO_CTWINDOW;
4101 	config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
4102 	config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
4103 	config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
4104 	config->max_num_sta = DEFAULT_MAX_NUM_STA;
4105 	config->ap_isolate = DEFAULT_AP_ISOLATE;
4106 	config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
4107 	config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
4108 	config->wmm_ac_params[0] = ac_be;
4109 	config->wmm_ac_params[1] = ac_bk;
4110 	config->wmm_ac_params[2] = ac_vi;
4111 	config->wmm_ac_params[3] = ac_vo;
4112 	config->p2p_search_delay = DEFAULT_P2P_SEARCH_DELAY;
4113 	config->rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
4114 	config->key_mgmt_offload = DEFAULT_KEY_MGMT_OFFLOAD;
4115 	config->cert_in_cb = DEFAULT_CERT_IN_CB;
4116 	config->wpa_rsc_relaxation = DEFAULT_WPA_RSC_RELAXATION;
4117 
4118 #ifdef CONFIG_MBO
4119 	config->mbo_cell_capa = DEFAULT_MBO_CELL_CAPA;
4120 	config->disassoc_imminent_rssi_threshold =
4121 		DEFAULT_DISASSOC_IMMINENT_RSSI_THRESHOLD;
4122 	config->oce = DEFAULT_OCE_SUPPORT;
4123 #endif /* CONFIG_MBO */
4124 
4125 	if (ctrl_interface)
4126 		config->ctrl_interface = os_strdup(ctrl_interface);
4127 	if (driver_param)
4128 		config->driver_param = os_strdup(driver_param);
4129 	config->gas_rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
4130 
4131 	return config;
4132 }
4133 
4134 
4135 #ifndef CONFIG_NO_STDOUT_DEBUG
4136 /**
4137  * wpa_config_debug_dump_networks - Debug dump of configured networks
4138  * @config: Configuration data from wpa_config_read()
4139  */
wpa_config_debug_dump_networks(struct wpa_config * config)4140 void wpa_config_debug_dump_networks(struct wpa_config *config)
4141 {
4142 	int prio;
4143 	struct wpa_ssid *ssid;
4144 
4145 	for (prio = 0; prio < config->num_prio; prio++) {
4146 		ssid = config->pssid[prio];
4147 		wpa_printf(MSG_DEBUG, "Priority group %d",
4148 			   ssid->priority);
4149 		while (ssid) {
4150 			wpa_printf(MSG_DEBUG, "   id=%d ssid='%s'",
4151 				   ssid->id,
4152 				   wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
4153 			ssid = ssid->pnext;
4154 		}
4155 	}
4156 }
4157 #endif /* CONFIG_NO_STDOUT_DEBUG */
4158 
4159 
4160 struct global_parse_data {
4161 	char *name;
4162 	int (*parser)(const struct global_parse_data *data,
4163 		      struct wpa_config *config, int line, const char *value);
4164 	int (*get)(const char *name, struct wpa_config *config, long offset,
4165 		   char *buf, size_t buflen, int pretty_print);
4166 	void *param1, *param2, *param3;
4167 	unsigned int changed_flag;
4168 };
4169 
4170 
wpa_global_config_parse_int(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4171 static int wpa_global_config_parse_int(const struct global_parse_data *data,
4172 				       struct wpa_config *config, int line,
4173 				       const char *pos)
4174 {
4175 	int val, *dst;
4176 	char *end;
4177 
4178 	dst = (int *) (((u8 *) config) + (long) data->param1);
4179 	val = strtol(pos, &end, 0);
4180 	if (*end) {
4181 		wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
4182 			   line, pos);
4183 		return -1;
4184 	}
4185 	*dst = val;
4186 
4187 	wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
4188 
4189 	if (data->param2 && *dst < (long) data->param2) {
4190 		wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
4191 			   "min_value=%ld)", line, data->name, *dst,
4192 			   (long) data->param2);
4193 		*dst = (long) data->param2;
4194 		return -1;
4195 	}
4196 
4197 	if (data->param3 && *dst > (long) data->param3) {
4198 		wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
4199 			   "max_value=%ld)", line, data->name, *dst,
4200 			   (long) data->param3);
4201 		*dst = (long) data->param3;
4202 		return -1;
4203 	}
4204 
4205 	return 0;
4206 }
4207 
4208 
wpa_global_config_parse_str(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4209 static int wpa_global_config_parse_str(const struct global_parse_data *data,
4210 				       struct wpa_config *config, int line,
4211 				       const char *pos)
4212 {
4213 	size_t len;
4214 	char **dst, *tmp;
4215 
4216 	len = os_strlen(pos);
4217 	if (data->param2 && len < (size_t) data->param2) {
4218 		wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
4219 			   "min_len=%ld)", line, data->name,
4220 			   (unsigned long) len, (long) data->param2);
4221 		return -1;
4222 	}
4223 
4224 	if (data->param3 && len > (size_t) data->param3) {
4225 		wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
4226 			   "max_len=%ld)", line, data->name,
4227 			   (unsigned long) len, (long) data->param3);
4228 		return -1;
4229 	}
4230 
4231 	if (has_newline(pos)) {
4232 		wpa_printf(MSG_ERROR, "Line %d: invalid %s value with newline",
4233 			   line, data->name);
4234 		return -1;
4235 	}
4236 
4237 	tmp = os_strdup(pos);
4238 	if (tmp == NULL)
4239 		return -1;
4240 
4241 	dst = (char **) (((u8 *) config) + (long) data->param1);
4242 	os_free(*dst);
4243 	*dst = tmp;
4244 	wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
4245 
4246 	return 0;
4247 }
4248 
4249 
wpa_config_process_bgscan(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4250 static int wpa_config_process_bgscan(const struct global_parse_data *data,
4251 				     struct wpa_config *config, int line,
4252 				     const char *pos)
4253 {
4254 	size_t len;
4255 	char *tmp;
4256 	int res;
4257 
4258 	tmp = wpa_config_parse_string(pos, &len);
4259 	if (tmp == NULL) {
4260 		wpa_printf(MSG_ERROR, "Line %d: failed to parse %s",
4261 			   line, data->name);
4262 		return -1;
4263 	}
4264 
4265 	res = wpa_global_config_parse_str(data, config, line, tmp);
4266 	os_free(tmp);
4267 	return res;
4268 }
4269 
4270 
wpa_global_config_parse_bin(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4271 static int wpa_global_config_parse_bin(const struct global_parse_data *data,
4272 				       struct wpa_config *config, int line,
4273 				       const char *pos)
4274 {
4275 	struct wpabuf **dst, *tmp;
4276 
4277 	tmp = wpabuf_parse_bin(pos);
4278 	if (!tmp)
4279 		return -1;
4280 
4281 	dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
4282 	wpabuf_free(*dst);
4283 	*dst = tmp;
4284 	wpa_printf(MSG_DEBUG, "%s", data->name);
4285 
4286 	return 0;
4287 }
4288 
4289 
wpa_config_process_freq_list(const struct global_parse_data * data,struct wpa_config * config,int line,const char * value)4290 static int wpa_config_process_freq_list(const struct global_parse_data *data,
4291 					struct wpa_config *config, int line,
4292 					const char *value)
4293 {
4294 	int *freqs;
4295 
4296 	freqs = wpa_config_parse_int_array(value);
4297 	if (freqs == NULL)
4298 		return -1;
4299 	if (freqs[0] == 0) {
4300 		os_free(freqs);
4301 		freqs = NULL;
4302 	}
4303 	os_free(config->freq_list);
4304 	config->freq_list = freqs;
4305 	return 0;
4306 }
4307 
4308 
4309 #ifdef CONFIG_P2P
wpa_global_config_parse_ipv4(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4310 static int wpa_global_config_parse_ipv4(const struct global_parse_data *data,
4311 					struct wpa_config *config, int line,
4312 					const char *pos)
4313 {
4314 	u32 *dst;
4315 	struct hostapd_ip_addr addr;
4316 
4317 	if (hostapd_parse_ip_addr(pos, &addr) < 0)
4318 		return -1;
4319 	if (addr.af != AF_INET)
4320 		return -1;
4321 
4322 	dst = (u32 *) (((u8 *) config) + (long) data->param1);
4323 	os_memcpy(dst, &addr.u.v4.s_addr, 4);
4324 	wpa_printf(MSG_DEBUG, "%s = 0x%x", data->name,
4325 		   WPA_GET_BE32((u8 *) dst));
4326 
4327 	return 0;
4328 }
4329 #endif /* CONFIG_P2P */
4330 
4331 
wpa_config_process_country(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4332 static int wpa_config_process_country(const struct global_parse_data *data,
4333 				      struct wpa_config *config, int line,
4334 				      const char *pos)
4335 {
4336 	if (!pos[0] || !pos[1]) {
4337 		wpa_printf(MSG_DEBUG, "Invalid country set");
4338 		return -1;
4339 	}
4340 	config->country[0] = pos[0];
4341 	config->country[1] = pos[1];
4342 	wpa_printf(MSG_DEBUG, "country='%c%c'",
4343 		   config->country[0], config->country[1]);
4344 	return 0;
4345 }
4346 
4347 
wpa_config_process_load_dynamic_eap(const struct global_parse_data * data,struct wpa_config * config,int line,const char * so)4348 static int wpa_config_process_load_dynamic_eap(
4349 	const struct global_parse_data *data, struct wpa_config *config,
4350 	int line, const char *so)
4351 {
4352 	int ret;
4353 	wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
4354 	ret = eap_peer_method_load(so);
4355 	if (ret == -2) {
4356 		wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
4357 			   "reloading.");
4358 	} else if (ret) {
4359 		wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
4360 			   "method '%s'.", line, so);
4361 		return -1;
4362 	}
4363 
4364 	return 0;
4365 }
4366 
4367 
4368 #ifdef CONFIG_WPS
4369 
wpa_config_process_uuid(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4370 static int wpa_config_process_uuid(const struct global_parse_data *data,
4371 				   struct wpa_config *config, int line,
4372 				   const char *pos)
4373 {
4374 	char buf[40];
4375 	if (uuid_str2bin(pos, config->uuid)) {
4376 		wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
4377 		return -1;
4378 	}
4379 	uuid_bin2str(config->uuid, buf, sizeof(buf));
4380 	wpa_printf(MSG_DEBUG, "uuid=%s", buf);
4381 	return 0;
4382 }
4383 
4384 
wpa_config_process_device_type(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4385 static int wpa_config_process_device_type(
4386 	const struct global_parse_data *data,
4387 	struct wpa_config *config, int line, const char *pos)
4388 {
4389 	return wps_dev_type_str2bin(pos, config->device_type);
4390 }
4391 
4392 
wpa_config_process_os_version(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4393 static int wpa_config_process_os_version(const struct global_parse_data *data,
4394 					 struct wpa_config *config, int line,
4395 					 const char *pos)
4396 {
4397 	if (hexstr2bin(pos, config->os_version, 4)) {
4398 		wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
4399 		return -1;
4400 	}
4401 	wpa_printf(MSG_DEBUG, "os_version=%08x",
4402 		   WPA_GET_BE32(config->os_version));
4403 	return 0;
4404 }
4405 
4406 
wpa_config_process_wps_vendor_ext_m1(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4407 static int wpa_config_process_wps_vendor_ext_m1(
4408 	const struct global_parse_data *data,
4409 	struct wpa_config *config, int line, const char *pos)
4410 {
4411 	struct wpabuf *tmp;
4412 	int len = os_strlen(pos) / 2;
4413 	u8 *p;
4414 
4415 	if (!len) {
4416 		wpa_printf(MSG_ERROR, "Line %d: "
4417 			   "invalid wps_vendor_ext_m1", line);
4418 		return -1;
4419 	}
4420 
4421 	tmp = wpabuf_alloc(len);
4422 	if (tmp) {
4423 		p = wpabuf_put(tmp, len);
4424 
4425 		if (hexstr2bin(pos, p, len)) {
4426 			wpa_printf(MSG_ERROR, "Line %d: "
4427 				   "invalid wps_vendor_ext_m1", line);
4428 			wpabuf_free(tmp);
4429 			return -1;
4430 		}
4431 
4432 		wpabuf_free(config->wps_vendor_ext_m1);
4433 		config->wps_vendor_ext_m1 = tmp;
4434 	} else {
4435 		wpa_printf(MSG_ERROR, "Can not allocate "
4436 			   "memory for wps_vendor_ext_m1");
4437 		return -1;
4438 	}
4439 
4440 	return 0;
4441 }
4442 
4443 #endif /* CONFIG_WPS */
4444 
4445 #ifdef CONFIG_P2P
wpa_config_process_sec_device_type(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4446 static int wpa_config_process_sec_device_type(
4447 	const struct global_parse_data *data,
4448 	struct wpa_config *config, int line, const char *pos)
4449 {
4450 	int idx;
4451 
4452 	if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
4453 		wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
4454 			   "items", line);
4455 		return -1;
4456 	}
4457 
4458 	idx = config->num_sec_device_types;
4459 
4460 	if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
4461 		return -1;
4462 
4463 	config->num_sec_device_types++;
4464 	return 0;
4465 }
4466 
4467 
wpa_config_process_p2p_pref_chan(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4468 static int wpa_config_process_p2p_pref_chan(
4469 	const struct global_parse_data *data,
4470 	struct wpa_config *config, int line, const char *pos)
4471 {
4472 	struct p2p_channel *pref = NULL, *n;
4473 	unsigned int num = 0;
4474 	const char *pos2;
4475 	u8 op_class, chan;
4476 
4477 	/* format: class:chan,class:chan,... */
4478 
4479 	while (*pos) {
4480 		op_class = atoi(pos);
4481 		pos2 = os_strchr(pos, ':');
4482 		if (pos2 == NULL)
4483 			goto fail;
4484 		pos2++;
4485 		chan = atoi(pos2);
4486 
4487 		n = os_realloc_array(pref, num + 1,
4488 				     sizeof(struct p2p_channel));
4489 		if (n == NULL)
4490 			goto fail;
4491 		pref = n;
4492 		pref[num].op_class = op_class;
4493 		pref[num].chan = chan;
4494 		num++;
4495 
4496 		pos = os_strchr(pos2, ',');
4497 		if (pos == NULL)
4498 			break;
4499 		pos++;
4500 	}
4501 
4502 	os_free(config->p2p_pref_chan);
4503 	config->p2p_pref_chan = pref;
4504 	config->num_p2p_pref_chan = num;
4505 	wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
4506 		    (u8 *) config->p2p_pref_chan,
4507 		    config->num_p2p_pref_chan * sizeof(struct p2p_channel));
4508 
4509 	return 0;
4510 
4511 fail:
4512 	os_free(pref);
4513 	wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
4514 	return -1;
4515 }
4516 
4517 
wpa_config_process_p2p_no_go_freq(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4518 static int wpa_config_process_p2p_no_go_freq(
4519 	const struct global_parse_data *data,
4520 	struct wpa_config *config, int line, const char *pos)
4521 {
4522 	int ret;
4523 
4524 	ret = freq_range_list_parse(&config->p2p_no_go_freq, pos);
4525 	if (ret < 0) {
4526 		wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_no_go_freq", line);
4527 		return -1;
4528 	}
4529 
4530 	wpa_printf(MSG_DEBUG, "P2P: p2p_no_go_freq with %u items",
4531 		   config->p2p_no_go_freq.num);
4532 
4533 	return 0;
4534 }
4535 
4536 
wpa_config_process_p2p_device_persistent_mac_addr(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4537 static int wpa_config_process_p2p_device_persistent_mac_addr(
4538 	const struct global_parse_data *data,
4539 	struct wpa_config *config, int line, const char *pos)
4540 {
4541 	if (hwaddr_aton2(pos, config->p2p_device_persistent_mac_addr) < 0) {
4542 		wpa_printf(MSG_ERROR,
4543 			   "Line %d: Invalid p2p_device_persistent_mac_addr '%s'",
4544 			   line, pos);
4545 		return -1;
4546 	}
4547 
4548 	return 0;
4549 }
4550 
4551 #endif /* CONFIG_P2P */
4552 
4553 
wpa_config_process_hessid(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4554 static int wpa_config_process_hessid(
4555 	const struct global_parse_data *data,
4556 	struct wpa_config *config, int line, const char *pos)
4557 {
4558 	if (hwaddr_aton2(pos, config->hessid) < 0) {
4559 		wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
4560 			   line, pos);
4561 		return -1;
4562 	}
4563 
4564 	return 0;
4565 }
4566 
4567 
wpa_config_process_sae_groups(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4568 static int wpa_config_process_sae_groups(
4569 	const struct global_parse_data *data,
4570 	struct wpa_config *config, int line, const char *pos)
4571 {
4572 	int *groups = wpa_config_parse_int_array(pos);
4573 	if (groups == NULL) {
4574 		wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
4575 			   line, pos);
4576 		return -1;
4577 	}
4578 
4579 	os_free(config->sae_groups);
4580 	config->sae_groups = groups;
4581 
4582 	return 0;
4583 }
4584 
4585 
wpa_config_process_ap_vendor_elements(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4586 static int wpa_config_process_ap_vendor_elements(
4587 	const struct global_parse_data *data,
4588 	struct wpa_config *config, int line, const char *pos)
4589 {
4590 	struct wpabuf *tmp;
4591 	int len = os_strlen(pos) / 2;
4592 	u8 *p;
4593 
4594 	if (!len) {
4595 		wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
4596 			   line);
4597 		return -1;
4598 	}
4599 
4600 	tmp = wpabuf_alloc(len);
4601 	if (tmp) {
4602 		p = wpabuf_put(tmp, len);
4603 
4604 		if (hexstr2bin(pos, p, len)) {
4605 			wpa_printf(MSG_ERROR, "Line %d: invalid "
4606 				   "ap_vendor_elements", line);
4607 			wpabuf_free(tmp);
4608 			return -1;
4609 		}
4610 
4611 		wpabuf_free(config->ap_vendor_elements);
4612 		config->ap_vendor_elements = tmp;
4613 	} else {
4614 		wpa_printf(MSG_ERROR, "Cannot allocate memory for "
4615 			   "ap_vendor_elements");
4616 		return -1;
4617 	}
4618 
4619 	return 0;
4620 }
4621 
4622 
4623 #ifdef CONFIG_CTRL_IFACE
wpa_config_process_no_ctrl_interface(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4624 static int wpa_config_process_no_ctrl_interface(
4625 	const struct global_parse_data *data,
4626 	struct wpa_config *config, int line, const char *pos)
4627 {
4628 	wpa_printf(MSG_DEBUG, "no_ctrl_interface -> ctrl_interface=NULL");
4629 	os_free(config->ctrl_interface);
4630 	config->ctrl_interface = NULL;
4631 	return 0;
4632 }
4633 #endif /* CONFIG_CTRL_IFACE */
4634 
4635 
wpa_config_get_int(const char * name,struct wpa_config * config,long offset,char * buf,size_t buflen,int pretty_print)4636 static int wpa_config_get_int(const char *name, struct wpa_config *config,
4637 			      long offset, char *buf, size_t buflen,
4638 			      int pretty_print)
4639 {
4640 	int *val = (int *) (((u8 *) config) + (long) offset);
4641 
4642 	if (pretty_print)
4643 		return os_snprintf(buf, buflen, "%s=%d\n", name, *val);
4644 	return os_snprintf(buf, buflen, "%d", *val);
4645 }
4646 
4647 
wpa_config_get_str(const char * name,struct wpa_config * config,long offset,char * buf,size_t buflen,int pretty_print)4648 static int wpa_config_get_str(const char *name, struct wpa_config *config,
4649 			      long offset, char *buf, size_t buflen,
4650 			      int pretty_print)
4651 {
4652 	char **val = (char **) (((u8 *) config) + (long) offset);
4653 	int res;
4654 
4655 	if (pretty_print)
4656 		res = os_snprintf(buf, buflen, "%s=%s\n", name,
4657 				  *val ? *val : "null");
4658 	else if (!*val)
4659 		return -1;
4660 	else
4661 		res = os_snprintf(buf, buflen, "%s", *val);
4662 	if (os_snprintf_error(buflen, res))
4663 		res = -1;
4664 
4665 	return res;
4666 }
4667 
4668 
4669 #ifdef CONFIG_P2P
wpa_config_get_ipv4(const char * name,struct wpa_config * config,long offset,char * buf,size_t buflen,int pretty_print)4670 static int wpa_config_get_ipv4(const char *name, struct wpa_config *config,
4671 			       long offset, char *buf, size_t buflen,
4672 			       int pretty_print)
4673 {
4674 	void *val = ((u8 *) config) + (long) offset;
4675 	int res;
4676 	char addr[INET_ADDRSTRLEN];
4677 
4678 	if (!val || !inet_ntop(AF_INET, val, addr, sizeof(addr)))
4679 		return -1;
4680 
4681 	if (pretty_print)
4682 		res = os_snprintf(buf, buflen, "%s=%s\n", name, addr);
4683 	else
4684 		res = os_snprintf(buf, buflen, "%s", addr);
4685 
4686 	if (os_snprintf_error(buflen, res))
4687 		res = -1;
4688 
4689 	return res;
4690 }
4691 #endif /* CONFIG_P2P */
4692 
4693 
4694 #ifdef OFFSET
4695 #undef OFFSET
4696 #endif /* OFFSET */
4697 /* OFFSET: Get offset of a variable within the wpa_config structure */
4698 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
4699 
4700 #define FUNC(f) #f, wpa_config_process_ ## f, NULL, OFFSET(f), NULL, NULL
4701 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL, NULL
4702 #define _INT(f) #f, wpa_global_config_parse_int, wpa_config_get_int, OFFSET(f)
4703 #define INT(f) _INT(f), NULL, NULL
4704 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
4705 #define _STR(f) #f, wpa_global_config_parse_str, wpa_config_get_str, OFFSET(f)
4706 #define STR(f) _STR(f), NULL, NULL
4707 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
4708 #define BIN(f) #f, wpa_global_config_parse_bin, NULL, OFFSET(f), NULL, NULL
4709 #define IPV4(f) #f, wpa_global_config_parse_ipv4, wpa_config_get_ipv4,  \
4710 	OFFSET(f), NULL, NULL
4711 
4712 static const struct global_parse_data global_fields[] = {
4713 #ifdef CONFIG_CTRL_IFACE
4714 	{ STR(ctrl_interface), 0 },
4715 	{ FUNC_NO_VAR(no_ctrl_interface), 0 },
4716 	{ STR(ctrl_interface_group), 0 } /* deprecated */,
4717 #endif /* CONFIG_CTRL_IFACE */
4718 #ifdef CONFIG_MACSEC
4719 	{ INT_RANGE(eapol_version, 1, 3), 0 },
4720 #else /* CONFIG_MACSEC */
4721 	{ INT_RANGE(eapol_version, 1, 2), 0 },
4722 #endif /* CONFIG_MACSEC */
4723 	{ INT(ap_scan), 0 },
4724 	{ FUNC(bgscan), 0 },
4725 #ifdef CONFIG_MESH
4726 	{ INT(user_mpm), 0 },
4727 	{ INT_RANGE(max_peer_links, 0, 255), 0 },
4728 	{ INT(mesh_max_inactivity), 0 },
4729 	{ INT(dot11RSNASAERetransPeriod), 0 },
4730 #endif /* CONFIG_MESH */
4731 	{ INT(disable_scan_offload), 0 },
4732 	{ INT(fast_reauth), 0 },
4733 	{ STR(opensc_engine_path), 0 },
4734 	{ STR(pkcs11_engine_path), 0 },
4735 	{ STR(pkcs11_module_path), 0 },
4736 	{ STR(openssl_ciphers), 0 },
4737 	{ STR(pcsc_reader), 0 },
4738 	{ STR(pcsc_pin), 0 },
4739 	{ INT(external_sim), 0 },
4740 	{ STR(driver_param), 0 },
4741 	{ INT(dot11RSNAConfigPMKLifetime), 0 },
4742 	{ INT(dot11RSNAConfigPMKReauthThreshold), 0 },
4743 	{ INT(dot11RSNAConfigSATimeout), 0 },
4744 #ifndef CONFIG_NO_CONFIG_WRITE
4745 	{ INT(update_config), 0 },
4746 #endif /* CONFIG_NO_CONFIG_WRITE */
4747 	{ FUNC_NO_VAR(load_dynamic_eap), 0 },
4748 #ifdef CONFIG_WPS
4749 	{ FUNC(uuid), CFG_CHANGED_UUID },
4750 	{ INT_RANGE(auto_uuid, 0, 1), 0 },
4751 	{ STR_RANGE(device_name, 0, WPS_DEV_NAME_MAX_LEN),
4752 	  CFG_CHANGED_DEVICE_NAME },
4753 	{ STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
4754 	{ STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
4755 	{ STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
4756 	{ STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
4757 	{ FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
4758 	{ FUNC(os_version), CFG_CHANGED_OS_VERSION },
4759 	{ STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
4760 	{ INT_RANGE(wps_cred_processing, 0, 2), 0 },
4761 	{ INT_RANGE(wps_cred_add_sae, 0, 1), 0 },
4762 	{ FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
4763 #endif /* CONFIG_WPS */
4764 #ifdef CONFIG_P2P
4765 	{ FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
4766 	{ INT(p2p_listen_reg_class), CFG_CHANGED_P2P_LISTEN_CHANNEL },
4767 	{ INT(p2p_listen_channel), CFG_CHANGED_P2P_LISTEN_CHANNEL },
4768 	{ INT(p2p_oper_reg_class), CFG_CHANGED_P2P_OPER_CHANNEL },
4769 	{ INT(p2p_oper_channel), CFG_CHANGED_P2P_OPER_CHANNEL },
4770 	{ INT_RANGE(p2p_go_intent, 0, 15), 0 },
4771 	{ STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
4772 	{ INT_RANGE(persistent_reconnect, 0, 1), 0 },
4773 	{ INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
4774 	{ INT(p2p_group_idle), 0 },
4775 	{ INT_RANGE(p2p_go_freq_change_policy, 0, P2P_GO_FREQ_MOVE_MAX), 0 },
4776 	{ INT_RANGE(p2p_passphrase_len, 8, 63),
4777 	  CFG_CHANGED_P2P_PASSPHRASE_LEN },
4778 	{ FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
4779 	{ FUNC(p2p_no_go_freq), CFG_CHANGED_P2P_PREF_CHAN },
4780 	{ INT_RANGE(p2p_add_cli_chan, 0, 1), 0 },
4781 	{ INT_RANGE(p2p_optimize_listen_chan, 0, 1), 0 },
4782 	{ INT(p2p_go_ht40), 0 },
4783 	{ INT(p2p_go_vht), 0 },
4784 	{ INT(p2p_go_he), 0 },
4785 	{ INT(p2p_disabled), 0 },
4786 	{ INT_RANGE(p2p_go_ctwindow, 0, 127), 0 },
4787 	{ INT(p2p_no_group_iface), 0 },
4788 	{ INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
4789 	{ IPV4(ip_addr_go), 0 },
4790 	{ IPV4(ip_addr_mask), 0 },
4791 	{ IPV4(ip_addr_start), 0 },
4792 	{ IPV4(ip_addr_end), 0 },
4793 	{ INT_RANGE(p2p_cli_probe, 0, 1), 0 },
4794 	{ INT(p2p_device_random_mac_addr), 0 },
4795 	{ FUNC(p2p_device_persistent_mac_addr), 0 },
4796 	{ INT(p2p_interface_random_mac_addr), 0 },
4797 #endif /* CONFIG_P2P */
4798 	{ FUNC(country), CFG_CHANGED_COUNTRY },
4799 	{ INT(bss_max_count), 0 },
4800 	{ INT(bss_expiration_age), 0 },
4801 	{ INT(bss_expiration_scan_count), 0 },
4802 	{ INT_RANGE(filter_ssids, 0, 1), 0 },
4803 	{ INT_RANGE(filter_rssi, -100, 0), 0 },
4804 	{ INT(max_num_sta), 0 },
4805 	{ INT_RANGE(ap_isolate, 0, 1), 0 },
4806 	{ INT_RANGE(disassoc_low_ack, 0, 1), 0 },
4807 #ifdef CONFIG_HS20
4808 	{ INT_RANGE(hs20, 0, 1), 0 },
4809 #endif /* CONFIG_HS20 */
4810 	{ INT_RANGE(interworking, 0, 1), 0 },
4811 	{ FUNC(hessid), 0 },
4812 	{ INT_RANGE(access_network_type, 0, 15), 0 },
4813 	{ INT_RANGE(go_interworking, 0, 1), 0 },
4814 	{ INT_RANGE(go_access_network_type, 0, 15), 0 },
4815 	{ INT_RANGE(go_internet, 0, 1), 0 },
4816 	{ INT_RANGE(go_venue_group, 0, 255), 0 },
4817 	{ INT_RANGE(go_venue_type, 0, 255), 0 },
4818 	{ INT_RANGE(pbc_in_m1, 0, 1), 0 },
4819 	{ STR(autoscan), 0 },
4820 	{ INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
4821 	  CFG_CHANGED_NFC_PASSWORD_TOKEN },
4822 	{ BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4823 	{ BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4824 	{ BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4825 	{ STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
4826 	{ INT(p2p_go_max_inactivity), 0 },
4827 	{ INT_RANGE(auto_interworking, 0, 1), 0 },
4828 	{ INT(okc), 0 },
4829 	{ INT(pmf), 0 },
4830 	{ FUNC(sae_groups), 0 },
4831 	{ INT(dtim_period), 0 },
4832 	{ INT(beacon_int), 0 },
4833 	{ FUNC(ap_vendor_elements), 0 },
4834 	{ INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
4835 	{ FUNC(freq_list), 0 },
4836 	{ INT(scan_cur_freq), 0 },
4837 	{ INT(sched_scan_interval), 0 },
4838 	{ INT(sched_scan_start_delay), 0 },
4839 	{ INT(tdls_external_control), 0},
4840 	{ STR(osu_dir), 0 },
4841 	{ STR(wowlan_triggers), CFG_CHANGED_WOWLAN_TRIGGERS },
4842 	{ INT(p2p_search_delay), 0},
4843 	{ INT(mac_addr), 0 },
4844 	{ INT(rand_addr_lifetime), 0 },
4845 	{ INT(preassoc_mac_addr), 0 },
4846 	{ INT(key_mgmt_offload), 0},
4847 	{ INT(passive_scan), 0 },
4848 	{ INT(reassoc_same_bss_optim), 0 },
4849 	{ INT(wps_priority), 0},
4850 #ifdef CONFIG_FST
4851 	{ STR_RANGE(fst_group_id, 1, FST_MAX_GROUP_ID_LEN), 0 },
4852 	{ INT_RANGE(fst_priority, 1, FST_MAX_PRIO_VALUE), 0 },
4853 	{ INT_RANGE(fst_llt, 1, FST_MAX_LLT_MS), 0 },
4854 #endif /* CONFIG_FST */
4855 	{ INT_RANGE(cert_in_cb, 0, 1), 0 },
4856 	{ INT_RANGE(wpa_rsc_relaxation, 0, 1), 0 },
4857 	{ STR(sched_scan_plans), CFG_CHANGED_SCHED_SCAN_PLANS },
4858 #ifdef CONFIG_MBO
4859 	{ STR(non_pref_chan), 0 },
4860 	{ INT_RANGE(mbo_cell_capa, MBO_CELL_CAPA_AVAILABLE,
4861 		    MBO_CELL_CAPA_NOT_SUPPORTED), 0 },
4862 	{ INT_RANGE(disassoc_imminent_rssi_threshold, -120, 0), 0 },
4863 	{ INT_RANGE(oce, 0, 3), 0 },
4864 #endif /* CONFIG_MBO */
4865 	{ INT(gas_address3), 0 },
4866 	{ INT_RANGE(ftm_responder, 0, 1), 0 },
4867 	{ INT_RANGE(ftm_initiator, 0, 1), 0 },
4868 	{ INT(gas_rand_addr_lifetime), 0 },
4869 	{ INT_RANGE(gas_rand_mac_addr, 0, 2), 0 },
4870 	{ INT_RANGE(dpp_config_processing, 0, 2), 0 },
4871 	{ INT_RANGE(coloc_intf_reporting, 0, 1), 0 },
4872 #ifdef CONFIG_WNM
4873 	{ INT_RANGE(disable_btm, 0, 1), CFG_CHANGED_DISABLE_BTM },
4874 #endif /* CONFIG_WNM */
4875 };
4876 
4877 #undef FUNC
4878 #undef _INT
4879 #undef INT
4880 #undef INT_RANGE
4881 #undef _STR
4882 #undef STR
4883 #undef STR_RANGE
4884 #undef BIN
4885 #undef IPV4
4886 #define NUM_GLOBAL_FIELDS ARRAY_SIZE(global_fields)
4887 
4888 
wpa_config_dump_values(struct wpa_config * config,char * buf,size_t buflen)4889 int wpa_config_dump_values(struct wpa_config *config, char *buf, size_t buflen)
4890 {
4891 	int result = 0;
4892 	size_t i;
4893 
4894 	for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4895 		const struct global_parse_data *field = &global_fields[i];
4896 		int tmp;
4897 
4898 		if (!field->get)
4899 			continue;
4900 
4901 		tmp = field->get(field->name, config, (long) field->param1,
4902 				 buf, buflen, 1);
4903 		if (tmp < 0)
4904 			return -1;
4905 		buf += tmp;
4906 		buflen -= tmp;
4907 		result += tmp;
4908 	}
4909 	return result;
4910 }
4911 
4912 
wpa_config_get_value(const char * name,struct wpa_config * config,char * buf,size_t buflen)4913 int wpa_config_get_value(const char *name, struct wpa_config *config,
4914 			 char *buf, size_t buflen)
4915 {
4916 	size_t i;
4917 
4918 	for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4919 		const struct global_parse_data *field = &global_fields[i];
4920 
4921 		if (os_strcmp(name, field->name) != 0)
4922 			continue;
4923 		if (!field->get)
4924 			break;
4925 		return field->get(name, config, (long) field->param1,
4926 				  buf, buflen, 0);
4927 	}
4928 
4929 	return -1;
4930 }
4931 
4932 
wpa_config_get_num_global_field_names(void)4933 int wpa_config_get_num_global_field_names(void)
4934 {
4935 	return NUM_GLOBAL_FIELDS;
4936 }
4937 
4938 
wpa_config_get_global_field_name(unsigned int i,int * no_var)4939 const char * wpa_config_get_global_field_name(unsigned int i, int *no_var)
4940 {
4941 	if (i >= NUM_GLOBAL_FIELDS)
4942 		return NULL;
4943 
4944 	if (no_var)
4945 		*no_var = !global_fields[i].param1;
4946 	return global_fields[i].name;
4947 }
4948 
4949 
wpa_config_process_global(struct wpa_config * config,char * pos,int line)4950 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
4951 {
4952 	size_t i;
4953 	int ret = 0;
4954 
4955 	for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4956 		const struct global_parse_data *field = &global_fields[i];
4957 		size_t flen = os_strlen(field->name);
4958 		if (os_strncmp(pos, field->name, flen) != 0 ||
4959 		    pos[flen] != '=')
4960 			continue;
4961 
4962 		if (field->parser(field, config, line, pos + flen + 1)) {
4963 			wpa_printf(MSG_ERROR, "Line %d: failed to "
4964 				   "parse '%s'.", line, pos);
4965 			ret = -1;
4966 		}
4967 		if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
4968 			config->wps_nfc_pw_from_config = 1;
4969 		config->changed_parameters |= field->changed_flag;
4970 		break;
4971 	}
4972 	if (i == NUM_GLOBAL_FIELDS) {
4973 #ifdef CONFIG_AP
4974 		if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
4975 			char *tmp = os_strchr(pos, '=');
4976 			if (tmp == NULL) {
4977 				if (line < 0)
4978 					return -1;
4979 				wpa_printf(MSG_ERROR, "Line %d: invalid line "
4980 					   "'%s'", line, pos);
4981 				return -1;
4982 			}
4983 			*tmp++ = '\0';
4984 			if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
4985 						  tmp)) {
4986 				wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
4987 					   "AC item", line);
4988 				return -1;
4989 			}
4990 		}
4991 #endif /* CONFIG_AP */
4992 		if (line < 0)
4993 			return -1;
4994 		wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
4995 			   line, pos);
4996 		ret = -1;
4997 	}
4998 
4999 	return ret;
5000 }
5001