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[thirdparty/hostap.git] / wpa_supplicant / config.c
1 /*
2 * WPA Supplicant / Configuration parser and common functions
3 * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #include "includes.h"
10
11 #include "common.h"
12 #include "utils/uuid.h"
13 #include "crypto/sha1.h"
14 #include "rsn_supp/wpa.h"
15 #include "eap_peer/eap.h"
16 #include "p2p/p2p.h"
17 #include "config.h"
18
19
20 #if !defined(CONFIG_CTRL_IFACE) && defined(CONFIG_NO_CONFIG_WRITE)
21 #define NO_CONFIG_WRITE
22 #endif
23
24 /*
25 * Structure for network configuration parsing. This data is used to implement
26 * a generic parser for each network block variable. The table of configuration
27 * variables is defined below in this file (ssid_fields[]).
28 */
29 struct parse_data {
30 /* Configuration variable name */
31 char *name;
32
33 /* Parser function for this variable */
34 int (*parser)(const struct parse_data *data, struct wpa_ssid *ssid,
35 int line, const char *value);
36
37 #ifndef NO_CONFIG_WRITE
38 /* Writer function (i.e., to get the variable in text format from
39 * internal presentation). */
40 char * (*writer)(const struct parse_data *data, struct wpa_ssid *ssid);
41 #endif /* NO_CONFIG_WRITE */
42
43 /* Variable specific parameters for the parser. */
44 void *param1, *param2, *param3, *param4;
45
46 /* 0 = this variable can be included in debug output and ctrl_iface
47 * 1 = this variable contains key/private data and it must not be
48 * included in debug output unless explicitly requested. In
49 * addition, this variable will not be readable through the
50 * ctrl_iface.
51 */
52 int key_data;
53 };
54
55
56 static char * wpa_config_parse_string(const char *value, size_t *len)
57 {
58 if (*value == '"') {
59 const char *pos;
60 char *str;
61 value++;
62 pos = os_strrchr(value, '"');
63 if (pos == NULL || pos[1] != '\0')
64 return NULL;
65 *len = pos - value;
66 str = os_malloc(*len + 1);
67 if (str == NULL)
68 return NULL;
69 os_memcpy(str, value, *len);
70 str[*len] = '\0';
71 return str;
72 } else {
73 u8 *str;
74 size_t tlen, hlen = os_strlen(value);
75 if (hlen & 1)
76 return NULL;
77 tlen = hlen / 2;
78 str = os_malloc(tlen + 1);
79 if (str == NULL)
80 return NULL;
81 if (hexstr2bin(value, str, tlen)) {
82 os_free(str);
83 return NULL;
84 }
85 str[tlen] = '\0';
86 *len = tlen;
87 return (char *) str;
88 }
89 }
90
91
92 static int wpa_config_parse_str(const struct parse_data *data,
93 struct wpa_ssid *ssid,
94 int line, const char *value)
95 {
96 size_t res_len, *dst_len;
97 char **dst, *tmp;
98
99 if (os_strcmp(value, "NULL") == 0) {
100 wpa_printf(MSG_DEBUG, "Unset configuration string '%s'",
101 data->name);
102 tmp = NULL;
103 res_len = 0;
104 goto set;
105 }
106
107 tmp = wpa_config_parse_string(value, &res_len);
108 if (tmp == NULL) {
109 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s '%s'.",
110 line, data->name,
111 data->key_data ? "[KEY DATA REMOVED]" : value);
112 return -1;
113 }
114
115 if (data->key_data) {
116 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
117 (u8 *) tmp, res_len);
118 } else {
119 wpa_hexdump_ascii(MSG_MSGDUMP, data->name,
120 (u8 *) tmp, res_len);
121 }
122
123 if (data->param3 && res_len < (size_t) data->param3) {
124 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
125 "min_len=%ld)", line, data->name,
126 (unsigned long) res_len, (long) data->param3);
127 os_free(tmp);
128 return -1;
129 }
130
131 if (data->param4 && res_len > (size_t) data->param4) {
132 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
133 "max_len=%ld)", line, data->name,
134 (unsigned long) res_len, (long) data->param4);
135 os_free(tmp);
136 return -1;
137 }
138
139 set:
140 dst = (char **) (((u8 *) ssid) + (long) data->param1);
141 dst_len = (size_t *) (((u8 *) ssid) + (long) data->param2);
142 os_free(*dst);
143 *dst = tmp;
144 if (data->param2)
145 *dst_len = res_len;
146
147 return 0;
148 }
149
150
151 #ifndef NO_CONFIG_WRITE
152 static int is_hex(const u8 *data, size_t len)
153 {
154 size_t i;
155
156 for (i = 0; i < len; i++) {
157 if (data[i] < 32 || data[i] >= 127)
158 return 1;
159 }
160 return 0;
161 }
162
163
164 static char * wpa_config_write_string_ascii(const u8 *value, size_t len)
165 {
166 char *buf;
167
168 buf = os_malloc(len + 3);
169 if (buf == NULL)
170 return NULL;
171 buf[0] = '"';
172 os_memcpy(buf + 1, value, len);
173 buf[len + 1] = '"';
174 buf[len + 2] = '\0';
175
176 return buf;
177 }
178
179
180 static char * wpa_config_write_string_hex(const u8 *value, size_t len)
181 {
182 char *buf;
183
184 buf = os_zalloc(2 * len + 1);
185 if (buf == NULL)
186 return NULL;
187 wpa_snprintf_hex(buf, 2 * len + 1, value, len);
188
189 return buf;
190 }
191
192
193 static char * wpa_config_write_string(const u8 *value, size_t len)
194 {
195 if (value == NULL)
196 return NULL;
197
198 if (is_hex(value, len))
199 return wpa_config_write_string_hex(value, len);
200 else
201 return wpa_config_write_string_ascii(value, len);
202 }
203
204
205 static char * wpa_config_write_str(const struct parse_data *data,
206 struct wpa_ssid *ssid)
207 {
208 size_t len;
209 char **src;
210
211 src = (char **) (((u8 *) ssid) + (long) data->param1);
212 if (*src == NULL)
213 return NULL;
214
215 if (data->param2)
216 len = *((size_t *) (((u8 *) ssid) + (long) data->param2));
217 else
218 len = os_strlen(*src);
219
220 return wpa_config_write_string((const u8 *) *src, len);
221 }
222 #endif /* NO_CONFIG_WRITE */
223
224
225 static int wpa_config_parse_int(const struct parse_data *data,
226 struct wpa_ssid *ssid,
227 int line, const char *value)
228 {
229 int *dst;
230
231 dst = (int *) (((u8 *) ssid) + (long) data->param1);
232 *dst = atoi(value);
233 wpa_printf(MSG_MSGDUMP, "%s=%d (0x%x)", data->name, *dst, *dst);
234
235 if (data->param3 && *dst < (long) data->param3) {
236 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
237 "min_value=%ld)", line, data->name, *dst,
238 (long) data->param3);
239 *dst = (long) data->param3;
240 return -1;
241 }
242
243 if (data->param4 && *dst > (long) data->param4) {
244 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
245 "max_value=%ld)", line, data->name, *dst,
246 (long) data->param4);
247 *dst = (long) data->param4;
248 return -1;
249 }
250
251 return 0;
252 }
253
254
255 #ifndef NO_CONFIG_WRITE
256 static char * wpa_config_write_int(const struct parse_data *data,
257 struct wpa_ssid *ssid)
258 {
259 int *src, res;
260 char *value;
261
262 src = (int *) (((u8 *) ssid) + (long) data->param1);
263
264 value = os_malloc(20);
265 if (value == NULL)
266 return NULL;
267 res = os_snprintf(value, 20, "%d", *src);
268 if (res < 0 || res >= 20) {
269 os_free(value);
270 return NULL;
271 }
272 value[20 - 1] = '\0';
273 return value;
274 }
275 #endif /* NO_CONFIG_WRITE */
276
277
278 static int wpa_config_parse_bssid(const struct parse_data *data,
279 struct wpa_ssid *ssid, int line,
280 const char *value)
281 {
282 if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
283 os_strcmp(value, "any") == 0) {
284 ssid->bssid_set = 0;
285 wpa_printf(MSG_MSGDUMP, "BSSID any");
286 return 0;
287 }
288 if (hwaddr_aton(value, ssid->bssid)) {
289 wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID '%s'.",
290 line, value);
291 return -1;
292 }
293 ssid->bssid_set = 1;
294 wpa_hexdump(MSG_MSGDUMP, "BSSID", ssid->bssid, ETH_ALEN);
295 return 0;
296 }
297
298
299 #ifndef NO_CONFIG_WRITE
300 static char * wpa_config_write_bssid(const struct parse_data *data,
301 struct wpa_ssid *ssid)
302 {
303 char *value;
304 int res;
305
306 if (!ssid->bssid_set)
307 return NULL;
308
309 value = os_malloc(20);
310 if (value == NULL)
311 return NULL;
312 res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->bssid));
313 if (res < 0 || res >= 20) {
314 os_free(value);
315 return NULL;
316 }
317 value[20 - 1] = '\0';
318 return value;
319 }
320 #endif /* NO_CONFIG_WRITE */
321
322
323 static int wpa_config_parse_psk(const struct parse_data *data,
324 struct wpa_ssid *ssid, int line,
325 const char *value)
326 {
327 if (*value == '"') {
328 #ifndef CONFIG_NO_PBKDF2
329 const char *pos;
330 size_t len;
331
332 value++;
333 pos = os_strrchr(value, '"');
334 if (pos)
335 len = pos - value;
336 else
337 len = os_strlen(value);
338 if (len < 8 || len > 63) {
339 wpa_printf(MSG_ERROR, "Line %d: Invalid passphrase "
340 "length %lu (expected: 8..63) '%s'.",
341 line, (unsigned long) len, value);
342 return -1;
343 }
344 wpa_hexdump_ascii_key(MSG_MSGDUMP, "PSK (ASCII passphrase)",
345 (u8 *) value, len);
346 if (ssid->passphrase && os_strlen(ssid->passphrase) == len &&
347 os_memcmp(ssid->passphrase, value, len) == 0)
348 return 0;
349 ssid->psk_set = 0;
350 os_free(ssid->passphrase);
351 ssid->passphrase = os_malloc(len + 1);
352 if (ssid->passphrase == NULL)
353 return -1;
354 os_memcpy(ssid->passphrase, value, len);
355 ssid->passphrase[len] = '\0';
356 return 0;
357 #else /* CONFIG_NO_PBKDF2 */
358 wpa_printf(MSG_ERROR, "Line %d: ASCII passphrase not "
359 "supported.", line);
360 return -1;
361 #endif /* CONFIG_NO_PBKDF2 */
362 }
363
364 if (hexstr2bin(value, ssid->psk, PMK_LEN) ||
365 value[PMK_LEN * 2] != '\0') {
366 wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.",
367 line, value);
368 return -1;
369 }
370
371 os_free(ssid->passphrase);
372 ssid->passphrase = NULL;
373
374 ssid->psk_set = 1;
375 wpa_hexdump_key(MSG_MSGDUMP, "PSK", ssid->psk, PMK_LEN);
376 return 0;
377 }
378
379
380 #ifndef NO_CONFIG_WRITE
381 static char * wpa_config_write_psk(const struct parse_data *data,
382 struct wpa_ssid *ssid)
383 {
384 if (ssid->passphrase)
385 return wpa_config_write_string_ascii(
386 (const u8 *) ssid->passphrase,
387 os_strlen(ssid->passphrase));
388
389 if (ssid->psk_set)
390 return wpa_config_write_string_hex(ssid->psk, PMK_LEN);
391
392 return NULL;
393 }
394 #endif /* NO_CONFIG_WRITE */
395
396
397 static int wpa_config_parse_proto(const struct parse_data *data,
398 struct wpa_ssid *ssid, int line,
399 const char *value)
400 {
401 int val = 0, last, errors = 0;
402 char *start, *end, *buf;
403
404 buf = os_strdup(value);
405 if (buf == NULL)
406 return -1;
407 start = buf;
408
409 while (*start != '\0') {
410 while (*start == ' ' || *start == '\t')
411 start++;
412 if (*start == '\0')
413 break;
414 end = start;
415 while (*end != ' ' && *end != '\t' && *end != '\0')
416 end++;
417 last = *end == '\0';
418 *end = '\0';
419 if (os_strcmp(start, "WPA") == 0)
420 val |= WPA_PROTO_WPA;
421 else if (os_strcmp(start, "RSN") == 0 ||
422 os_strcmp(start, "WPA2") == 0)
423 val |= WPA_PROTO_RSN;
424 else {
425 wpa_printf(MSG_ERROR, "Line %d: invalid proto '%s'",
426 line, start);
427 errors++;
428 }
429
430 if (last)
431 break;
432 start = end + 1;
433 }
434 os_free(buf);
435
436 if (val == 0) {
437 wpa_printf(MSG_ERROR,
438 "Line %d: no proto values configured.", line);
439 errors++;
440 }
441
442 wpa_printf(MSG_MSGDUMP, "proto: 0x%x", val);
443 ssid->proto = val;
444 return errors ? -1 : 0;
445 }
446
447
448 #ifndef NO_CONFIG_WRITE
449 static char * wpa_config_write_proto(const struct parse_data *data,
450 struct wpa_ssid *ssid)
451 {
452 int first = 1, ret;
453 char *buf, *pos, *end;
454
455 pos = buf = os_zalloc(10);
456 if (buf == NULL)
457 return NULL;
458 end = buf + 10;
459
460 if (ssid->proto & WPA_PROTO_WPA) {
461 ret = os_snprintf(pos, end - pos, "%sWPA", first ? "" : " ");
462 if (ret < 0 || ret >= end - pos)
463 return buf;
464 pos += ret;
465 first = 0;
466 }
467
468 if (ssid->proto & WPA_PROTO_RSN) {
469 ret = os_snprintf(pos, end - pos, "%sRSN", first ? "" : " ");
470 if (ret < 0 || ret >= end - pos)
471 return buf;
472 pos += ret;
473 first = 0;
474 }
475
476 return buf;
477 }
478 #endif /* NO_CONFIG_WRITE */
479
480
481 static int wpa_config_parse_key_mgmt(const struct parse_data *data,
482 struct wpa_ssid *ssid, int line,
483 const char *value)
484 {
485 int val = 0, last, errors = 0;
486 char *start, *end, *buf;
487
488 buf = os_strdup(value);
489 if (buf == NULL)
490 return -1;
491 start = buf;
492
493 while (*start != '\0') {
494 while (*start == ' ' || *start == '\t')
495 start++;
496 if (*start == '\0')
497 break;
498 end = start;
499 while (*end != ' ' && *end != '\t' && *end != '\0')
500 end++;
501 last = *end == '\0';
502 *end = '\0';
503 if (os_strcmp(start, "WPA-PSK") == 0)
504 val |= WPA_KEY_MGMT_PSK;
505 else if (os_strcmp(start, "WPA-EAP") == 0)
506 val |= WPA_KEY_MGMT_IEEE8021X;
507 else if (os_strcmp(start, "IEEE8021X") == 0)
508 val |= WPA_KEY_MGMT_IEEE8021X_NO_WPA;
509 else if (os_strcmp(start, "NONE") == 0)
510 val |= WPA_KEY_MGMT_NONE;
511 else if (os_strcmp(start, "WPA-NONE") == 0)
512 val |= WPA_KEY_MGMT_WPA_NONE;
513 #ifdef CONFIG_IEEE80211R
514 else if (os_strcmp(start, "FT-PSK") == 0)
515 val |= WPA_KEY_MGMT_FT_PSK;
516 else if (os_strcmp(start, "FT-EAP") == 0)
517 val |= WPA_KEY_MGMT_FT_IEEE8021X;
518 #endif /* CONFIG_IEEE80211R */
519 #ifdef CONFIG_IEEE80211W
520 else if (os_strcmp(start, "WPA-PSK-SHA256") == 0)
521 val |= WPA_KEY_MGMT_PSK_SHA256;
522 else if (os_strcmp(start, "WPA-EAP-SHA256") == 0)
523 val |= WPA_KEY_MGMT_IEEE8021X_SHA256;
524 #endif /* CONFIG_IEEE80211W */
525 #ifdef CONFIG_WPS
526 else if (os_strcmp(start, "WPS") == 0)
527 val |= WPA_KEY_MGMT_WPS;
528 #endif /* CONFIG_WPS */
529 else {
530 wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
531 line, start);
532 errors++;
533 }
534
535 if (last)
536 break;
537 start = end + 1;
538 }
539 os_free(buf);
540
541 if (val == 0) {
542 wpa_printf(MSG_ERROR,
543 "Line %d: no key_mgmt values configured.", line);
544 errors++;
545 }
546
547 wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val);
548 ssid->key_mgmt = val;
549 return errors ? -1 : 0;
550 }
551
552
553 #ifndef NO_CONFIG_WRITE
554 static char * wpa_config_write_key_mgmt(const struct parse_data *data,
555 struct wpa_ssid *ssid)
556 {
557 char *buf, *pos, *end;
558 int ret;
559
560 pos = buf = os_zalloc(50);
561 if (buf == NULL)
562 return NULL;
563 end = buf + 50;
564
565 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
566 ret = os_snprintf(pos, end - pos, "%sWPA-PSK",
567 pos == buf ? "" : " ");
568 if (ret < 0 || ret >= end - pos) {
569 end[-1] = '\0';
570 return buf;
571 }
572 pos += ret;
573 }
574
575 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
576 ret = os_snprintf(pos, end - pos, "%sWPA-EAP",
577 pos == buf ? "" : " ");
578 if (ret < 0 || ret >= end - pos) {
579 end[-1] = '\0';
580 return buf;
581 }
582 pos += ret;
583 }
584
585 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
586 ret = os_snprintf(pos, end - pos, "%sIEEE8021X",
587 pos == buf ? "" : " ");
588 if (ret < 0 || ret >= end - pos) {
589 end[-1] = '\0';
590 return buf;
591 }
592 pos += ret;
593 }
594
595 if (ssid->key_mgmt & WPA_KEY_MGMT_NONE) {
596 ret = os_snprintf(pos, end - pos, "%sNONE",
597 pos == buf ? "" : " ");
598 if (ret < 0 || ret >= end - pos) {
599 end[-1] = '\0';
600 return buf;
601 }
602 pos += ret;
603 }
604
605 if (ssid->key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
606 ret = os_snprintf(pos, end - pos, "%sWPA-NONE",
607 pos == buf ? "" : " ");
608 if (ret < 0 || ret >= end - pos) {
609 end[-1] = '\0';
610 return buf;
611 }
612 pos += ret;
613 }
614
615 #ifdef CONFIG_IEEE80211R
616 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_PSK)
617 pos += os_snprintf(pos, end - pos, "%sFT-PSK",
618 pos == buf ? "" : " ");
619
620 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X)
621 pos += os_snprintf(pos, end - pos, "%sFT-EAP",
622 pos == buf ? "" : " ");
623 #endif /* CONFIG_IEEE80211R */
624
625 #ifdef CONFIG_IEEE80211W
626 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK_SHA256)
627 pos += os_snprintf(pos, end - pos, "%sWPA-PSK-SHA256",
628 pos == buf ? "" : " ");
629
630 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256)
631 pos += os_snprintf(pos, end - pos, "%sWPA-EAP-SHA256",
632 pos == buf ? "" : " ");
633 #endif /* CONFIG_IEEE80211W */
634
635 #ifdef CONFIG_WPS
636 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
637 pos += os_snprintf(pos, end - pos, "%sWPS",
638 pos == buf ? "" : " ");
639 #endif /* CONFIG_WPS */
640
641 return buf;
642 }
643 #endif /* NO_CONFIG_WRITE */
644
645
646 static int wpa_config_parse_cipher(int line, const char *value)
647 {
648 int val = 0, last;
649 char *start, *end, *buf;
650
651 buf = os_strdup(value);
652 if (buf == NULL)
653 return -1;
654 start = buf;
655
656 while (*start != '\0') {
657 while (*start == ' ' || *start == '\t')
658 start++;
659 if (*start == '\0')
660 break;
661 end = start;
662 while (*end != ' ' && *end != '\t' && *end != '\0')
663 end++;
664 last = *end == '\0';
665 *end = '\0';
666 if (os_strcmp(start, "CCMP") == 0)
667 val |= WPA_CIPHER_CCMP;
668 else if (os_strcmp(start, "TKIP") == 0)
669 val |= WPA_CIPHER_TKIP;
670 else if (os_strcmp(start, "WEP104") == 0)
671 val |= WPA_CIPHER_WEP104;
672 else if (os_strcmp(start, "WEP40") == 0)
673 val |= WPA_CIPHER_WEP40;
674 else if (os_strcmp(start, "NONE") == 0)
675 val |= WPA_CIPHER_NONE;
676 else {
677 wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
678 line, start);
679 os_free(buf);
680 return -1;
681 }
682
683 if (last)
684 break;
685 start = end + 1;
686 }
687 os_free(buf);
688
689 if (val == 0) {
690 wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
691 line);
692 return -1;
693 }
694 return val;
695 }
696
697
698 #ifndef NO_CONFIG_WRITE
699 static char * wpa_config_write_cipher(int cipher)
700 {
701 char *buf, *pos, *end;
702 int ret;
703
704 pos = buf = os_zalloc(50);
705 if (buf == NULL)
706 return NULL;
707 end = buf + 50;
708
709 if (cipher & WPA_CIPHER_CCMP) {
710 ret = os_snprintf(pos, end - pos, "%sCCMP",
711 pos == buf ? "" : " ");
712 if (ret < 0 || ret >= end - pos) {
713 end[-1] = '\0';
714 return buf;
715 }
716 pos += ret;
717 }
718
719 if (cipher & WPA_CIPHER_TKIP) {
720 ret = os_snprintf(pos, end - pos, "%sTKIP",
721 pos == buf ? "" : " ");
722 if (ret < 0 || ret >= end - pos) {
723 end[-1] = '\0';
724 return buf;
725 }
726 pos += ret;
727 }
728
729 if (cipher & WPA_CIPHER_WEP104) {
730 ret = os_snprintf(pos, end - pos, "%sWEP104",
731 pos == buf ? "" : " ");
732 if (ret < 0 || ret >= end - pos) {
733 end[-1] = '\0';
734 return buf;
735 }
736 pos += ret;
737 }
738
739 if (cipher & WPA_CIPHER_WEP40) {
740 ret = os_snprintf(pos, end - pos, "%sWEP40",
741 pos == buf ? "" : " ");
742 if (ret < 0 || ret >= end - pos) {
743 end[-1] = '\0';
744 return buf;
745 }
746 pos += ret;
747 }
748
749 if (cipher & WPA_CIPHER_NONE) {
750 ret = os_snprintf(pos, end - pos, "%sNONE",
751 pos == buf ? "" : " ");
752 if (ret < 0 || ret >= end - pos) {
753 end[-1] = '\0';
754 return buf;
755 }
756 pos += ret;
757 }
758
759 return buf;
760 }
761 #endif /* NO_CONFIG_WRITE */
762
763
764 static int wpa_config_parse_pairwise(const struct parse_data *data,
765 struct wpa_ssid *ssid, int line,
766 const char *value)
767 {
768 int val;
769 val = wpa_config_parse_cipher(line, value);
770 if (val == -1)
771 return -1;
772 if (val & ~(WPA_CIPHER_CCMP | WPA_CIPHER_TKIP | WPA_CIPHER_NONE)) {
773 wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
774 "(0x%x).", line, val);
775 return -1;
776 }
777
778 wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
779 ssid->pairwise_cipher = val;
780 return 0;
781 }
782
783
784 #ifndef NO_CONFIG_WRITE
785 static char * wpa_config_write_pairwise(const struct parse_data *data,
786 struct wpa_ssid *ssid)
787 {
788 return wpa_config_write_cipher(ssid->pairwise_cipher);
789 }
790 #endif /* NO_CONFIG_WRITE */
791
792
793 static int wpa_config_parse_group(const struct parse_data *data,
794 struct wpa_ssid *ssid, int line,
795 const char *value)
796 {
797 int val;
798 val = wpa_config_parse_cipher(line, value);
799 if (val == -1)
800 return -1;
801 if (val & ~(WPA_CIPHER_CCMP | WPA_CIPHER_TKIP | WPA_CIPHER_WEP104 |
802 WPA_CIPHER_WEP40)) {
803 wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
804 "(0x%x).", line, val);
805 return -1;
806 }
807
808 wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
809 ssid->group_cipher = val;
810 return 0;
811 }
812
813
814 #ifndef NO_CONFIG_WRITE
815 static char * wpa_config_write_group(const struct parse_data *data,
816 struct wpa_ssid *ssid)
817 {
818 return wpa_config_write_cipher(ssid->group_cipher);
819 }
820 #endif /* NO_CONFIG_WRITE */
821
822
823 static int wpa_config_parse_auth_alg(const struct parse_data *data,
824 struct wpa_ssid *ssid, int line,
825 const char *value)
826 {
827 int val = 0, last, errors = 0;
828 char *start, *end, *buf;
829
830 buf = os_strdup(value);
831 if (buf == NULL)
832 return -1;
833 start = buf;
834
835 while (*start != '\0') {
836 while (*start == ' ' || *start == '\t')
837 start++;
838 if (*start == '\0')
839 break;
840 end = start;
841 while (*end != ' ' && *end != '\t' && *end != '\0')
842 end++;
843 last = *end == '\0';
844 *end = '\0';
845 if (os_strcmp(start, "OPEN") == 0)
846 val |= WPA_AUTH_ALG_OPEN;
847 else if (os_strcmp(start, "SHARED") == 0)
848 val |= WPA_AUTH_ALG_SHARED;
849 else if (os_strcmp(start, "LEAP") == 0)
850 val |= WPA_AUTH_ALG_LEAP;
851 else {
852 wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
853 line, start);
854 errors++;
855 }
856
857 if (last)
858 break;
859 start = end + 1;
860 }
861 os_free(buf);
862
863 if (val == 0) {
864 wpa_printf(MSG_ERROR,
865 "Line %d: no auth_alg values configured.", line);
866 errors++;
867 }
868
869 wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
870 ssid->auth_alg = val;
871 return errors ? -1 : 0;
872 }
873
874
875 #ifndef NO_CONFIG_WRITE
876 static char * wpa_config_write_auth_alg(const struct parse_data *data,
877 struct wpa_ssid *ssid)
878 {
879 char *buf, *pos, *end;
880 int ret;
881
882 pos = buf = os_zalloc(30);
883 if (buf == NULL)
884 return NULL;
885 end = buf + 30;
886
887 if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) {
888 ret = os_snprintf(pos, end - pos, "%sOPEN",
889 pos == buf ? "" : " ");
890 if (ret < 0 || ret >= end - pos) {
891 end[-1] = '\0';
892 return buf;
893 }
894 pos += ret;
895 }
896
897 if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) {
898 ret = os_snprintf(pos, end - pos, "%sSHARED",
899 pos == buf ? "" : " ");
900 if (ret < 0 || ret >= end - pos) {
901 end[-1] = '\0';
902 return buf;
903 }
904 pos += ret;
905 }
906
907 if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) {
908 ret = os_snprintf(pos, end - pos, "%sLEAP",
909 pos == buf ? "" : " ");
910 if (ret < 0 || ret >= end - pos) {
911 end[-1] = '\0';
912 return buf;
913 }
914 pos += ret;
915 }
916
917 return buf;
918 }
919 #endif /* NO_CONFIG_WRITE */
920
921
922 static int * wpa_config_parse_freqs(const struct parse_data *data,
923 struct wpa_ssid *ssid, int line,
924 const char *value)
925 {
926 int *freqs;
927 size_t used, len;
928 const char *pos;
929
930 used = 0;
931 len = 10;
932 freqs = os_zalloc((len + 1) * sizeof(int));
933 if (freqs == NULL)
934 return NULL;
935
936 pos = value;
937 while (pos) {
938 while (*pos == ' ')
939 pos++;
940 if (used == len) {
941 int *n;
942 size_t i;
943 n = os_realloc(freqs, (len * 2 + 1) * sizeof(int));
944 if (n == NULL) {
945 os_free(freqs);
946 return NULL;
947 }
948 for (i = len; i <= len * 2; i++)
949 n[i] = 0;
950 freqs = n;
951 len *= 2;
952 }
953
954 freqs[used] = atoi(pos);
955 if (freqs[used] == 0)
956 break;
957 used++;
958 pos = os_strchr(pos + 1, ' ');
959 }
960
961 return freqs;
962 }
963
964
965 static int wpa_config_parse_scan_freq(const struct parse_data *data,
966 struct wpa_ssid *ssid, int line,
967 const char *value)
968 {
969 int *freqs;
970
971 freqs = wpa_config_parse_freqs(data, ssid, line, value);
972 if (freqs == NULL)
973 return -1;
974 os_free(ssid->scan_freq);
975 ssid->scan_freq = freqs;
976
977 return 0;
978 }
979
980
981 static int wpa_config_parse_freq_list(const struct parse_data *data,
982 struct wpa_ssid *ssid, int line,
983 const char *value)
984 {
985 int *freqs;
986
987 freqs = wpa_config_parse_freqs(data, ssid, line, value);
988 if (freqs == NULL)
989 return -1;
990 os_free(ssid->freq_list);
991 ssid->freq_list = freqs;
992
993 return 0;
994 }
995
996
997 #ifndef NO_CONFIG_WRITE
998 static char * wpa_config_write_freqs(const struct parse_data *data,
999 const int *freqs)
1000 {
1001 char *buf, *pos, *end;
1002 int i, ret;
1003 size_t count;
1004
1005 if (freqs == NULL)
1006 return NULL;
1007
1008 count = 0;
1009 for (i = 0; freqs[i]; i++)
1010 count++;
1011
1012 pos = buf = os_zalloc(10 * count + 1);
1013 if (buf == NULL)
1014 return NULL;
1015 end = buf + 10 * count + 1;
1016
1017 for (i = 0; freqs[i]; i++) {
1018 ret = os_snprintf(pos, end - pos, "%s%u",
1019 i == 0 ? "" : " ", freqs[i]);
1020 if (ret < 0 || ret >= end - pos) {
1021 end[-1] = '\0';
1022 return buf;
1023 }
1024 pos += ret;
1025 }
1026
1027 return buf;
1028 }
1029
1030
1031 static char * wpa_config_write_scan_freq(const struct parse_data *data,
1032 struct wpa_ssid *ssid)
1033 {
1034 return wpa_config_write_freqs(data, ssid->scan_freq);
1035 }
1036
1037
1038 static char * wpa_config_write_freq_list(const struct parse_data *data,
1039 struct wpa_ssid *ssid)
1040 {
1041 return wpa_config_write_freqs(data, ssid->freq_list);
1042 }
1043 #endif /* NO_CONFIG_WRITE */
1044
1045
1046 #ifdef IEEE8021X_EAPOL
1047 static int wpa_config_parse_eap(const struct parse_data *data,
1048 struct wpa_ssid *ssid, int line,
1049 const char *value)
1050 {
1051 int last, errors = 0;
1052 char *start, *end, *buf;
1053 struct eap_method_type *methods = NULL, *tmp;
1054 size_t num_methods = 0;
1055
1056 buf = os_strdup(value);
1057 if (buf == NULL)
1058 return -1;
1059 start = buf;
1060
1061 while (*start != '\0') {
1062 while (*start == ' ' || *start == '\t')
1063 start++;
1064 if (*start == '\0')
1065 break;
1066 end = start;
1067 while (*end != ' ' && *end != '\t' && *end != '\0')
1068 end++;
1069 last = *end == '\0';
1070 *end = '\0';
1071 tmp = methods;
1072 methods = os_realloc(methods,
1073 (num_methods + 1) * sizeof(*methods));
1074 if (methods == NULL) {
1075 os_free(tmp);
1076 os_free(buf);
1077 return -1;
1078 }
1079 methods[num_methods].method = eap_peer_get_type(
1080 start, &methods[num_methods].vendor);
1081 if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1082 methods[num_methods].method == EAP_TYPE_NONE) {
1083 wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
1084 "'%s'", line, start);
1085 wpa_printf(MSG_ERROR, "You may need to add support for"
1086 " this EAP method during wpa_supplicant\n"
1087 "build time configuration.\n"
1088 "See README for more information.");
1089 errors++;
1090 } else if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1091 methods[num_methods].method == EAP_TYPE_LEAP)
1092 ssid->leap++;
1093 else
1094 ssid->non_leap++;
1095 num_methods++;
1096 if (last)
1097 break;
1098 start = end + 1;
1099 }
1100 os_free(buf);
1101
1102 tmp = methods;
1103 methods = os_realloc(methods, (num_methods + 1) * sizeof(*methods));
1104 if (methods == NULL) {
1105 os_free(tmp);
1106 return -1;
1107 }
1108 methods[num_methods].vendor = EAP_VENDOR_IETF;
1109 methods[num_methods].method = EAP_TYPE_NONE;
1110 num_methods++;
1111
1112 wpa_hexdump(MSG_MSGDUMP, "eap methods",
1113 (u8 *) methods, num_methods * sizeof(*methods));
1114 os_free(ssid->eap.eap_methods);
1115 ssid->eap.eap_methods = methods;
1116 return errors ? -1 : 0;
1117 }
1118
1119
1120 static char * wpa_config_write_eap(const struct parse_data *data,
1121 struct wpa_ssid *ssid)
1122 {
1123 int i, ret;
1124 char *buf, *pos, *end;
1125 const struct eap_method_type *eap_methods = ssid->eap.eap_methods;
1126 const char *name;
1127
1128 if (eap_methods == NULL)
1129 return NULL;
1130
1131 pos = buf = os_zalloc(100);
1132 if (buf == NULL)
1133 return NULL;
1134 end = buf + 100;
1135
1136 for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF ||
1137 eap_methods[i].method != EAP_TYPE_NONE; i++) {
1138 name = eap_get_name(eap_methods[i].vendor,
1139 eap_methods[i].method);
1140 if (name) {
1141 ret = os_snprintf(pos, end - pos, "%s%s",
1142 pos == buf ? "" : " ", name);
1143 if (ret < 0 || ret >= end - pos)
1144 break;
1145 pos += ret;
1146 }
1147 }
1148
1149 end[-1] = '\0';
1150
1151 return buf;
1152 }
1153
1154
1155 static int wpa_config_parse_password(const struct parse_data *data,
1156 struct wpa_ssid *ssid, int line,
1157 const char *value)
1158 {
1159 u8 *hash;
1160
1161 if (os_strcmp(value, "NULL") == 0) {
1162 wpa_printf(MSG_DEBUG, "Unset configuration string 'password'");
1163 os_free(ssid->eap.password);
1164 ssid->eap.password = NULL;
1165 ssid->eap.password_len = 0;
1166 return 0;
1167 }
1168
1169 if (os_strncmp(value, "hash:", 5) != 0) {
1170 char *tmp;
1171 size_t res_len;
1172
1173 tmp = wpa_config_parse_string(value, &res_len);
1174 if (tmp == NULL) {
1175 wpa_printf(MSG_ERROR, "Line %d: failed to parse "
1176 "password.", line);
1177 return -1;
1178 }
1179 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
1180 (u8 *) tmp, res_len);
1181
1182 os_free(ssid->eap.password);
1183 ssid->eap.password = (u8 *) tmp;
1184 ssid->eap.password_len = res_len;
1185 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1186
1187 return 0;
1188 }
1189
1190
1191 /* NtPasswordHash: hash:<32 hex digits> */
1192 if (os_strlen(value + 5) != 2 * 16) {
1193 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length "
1194 "(expected 32 hex digits)", line);
1195 return -1;
1196 }
1197
1198 hash = os_malloc(16);
1199 if (hash == NULL)
1200 return -1;
1201
1202 if (hexstr2bin(value + 5, hash, 16)) {
1203 os_free(hash);
1204 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line);
1205 return -1;
1206 }
1207
1208 wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16);
1209
1210 os_free(ssid->eap.password);
1211 ssid->eap.password = hash;
1212 ssid->eap.password_len = 16;
1213 ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1214
1215 return 0;
1216 }
1217
1218
1219 static char * wpa_config_write_password(const struct parse_data *data,
1220 struct wpa_ssid *ssid)
1221 {
1222 char *buf;
1223
1224 if (ssid->eap.password == NULL)
1225 return NULL;
1226
1227 if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1228 return wpa_config_write_string(
1229 ssid->eap.password, ssid->eap.password_len);
1230 }
1231
1232 buf = os_malloc(5 + 32 + 1);
1233 if (buf == NULL)
1234 return NULL;
1235
1236 os_memcpy(buf, "hash:", 5);
1237 wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16);
1238
1239 return buf;
1240 }
1241 #endif /* IEEE8021X_EAPOL */
1242
1243
1244 static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
1245 const char *value, int idx)
1246 {
1247 char *buf, title[20];
1248 int res;
1249
1250 buf = wpa_config_parse_string(value, len);
1251 if (buf == NULL) {
1252 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
1253 line, idx, value);
1254 return -1;
1255 }
1256 if (*len > MAX_WEP_KEY_LEN) {
1257 wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
1258 line, idx, value);
1259 os_free(buf);
1260 return -1;
1261 }
1262 if (*len && *len != 5 && *len != 13 && *len != 16) {
1263 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key length %u - "
1264 "this network block will be ignored",
1265 line, (unsigned int) *len);
1266 }
1267 os_memcpy(key, buf, *len);
1268 os_free(buf);
1269 res = os_snprintf(title, sizeof(title), "wep_key%d", idx);
1270 if (res >= 0 && (size_t) res < sizeof(title))
1271 wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
1272 return 0;
1273 }
1274
1275
1276 static int wpa_config_parse_wep_key0(const struct parse_data *data,
1277 struct wpa_ssid *ssid, int line,
1278 const char *value)
1279 {
1280 return wpa_config_parse_wep_key(ssid->wep_key[0],
1281 &ssid->wep_key_len[0], line,
1282 value, 0);
1283 }
1284
1285
1286 static int wpa_config_parse_wep_key1(const struct parse_data *data,
1287 struct wpa_ssid *ssid, int line,
1288 const char *value)
1289 {
1290 return wpa_config_parse_wep_key(ssid->wep_key[1],
1291 &ssid->wep_key_len[1], line,
1292 value, 1);
1293 }
1294
1295
1296 static int wpa_config_parse_wep_key2(const struct parse_data *data,
1297 struct wpa_ssid *ssid, int line,
1298 const char *value)
1299 {
1300 return wpa_config_parse_wep_key(ssid->wep_key[2],
1301 &ssid->wep_key_len[2], line,
1302 value, 2);
1303 }
1304
1305
1306 static int wpa_config_parse_wep_key3(const struct parse_data *data,
1307 struct wpa_ssid *ssid, int line,
1308 const char *value)
1309 {
1310 return wpa_config_parse_wep_key(ssid->wep_key[3],
1311 &ssid->wep_key_len[3], line,
1312 value, 3);
1313 }
1314
1315
1316 #ifndef NO_CONFIG_WRITE
1317 static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx)
1318 {
1319 if (ssid->wep_key_len[idx] == 0)
1320 return NULL;
1321 return wpa_config_write_string(ssid->wep_key[idx],
1322 ssid->wep_key_len[idx]);
1323 }
1324
1325
1326 static char * wpa_config_write_wep_key0(const struct parse_data *data,
1327 struct wpa_ssid *ssid)
1328 {
1329 return wpa_config_write_wep_key(ssid, 0);
1330 }
1331
1332
1333 static char * wpa_config_write_wep_key1(const struct parse_data *data,
1334 struct wpa_ssid *ssid)
1335 {
1336 return wpa_config_write_wep_key(ssid, 1);
1337 }
1338
1339
1340 static char * wpa_config_write_wep_key2(const struct parse_data *data,
1341 struct wpa_ssid *ssid)
1342 {
1343 return wpa_config_write_wep_key(ssid, 2);
1344 }
1345
1346
1347 static char * wpa_config_write_wep_key3(const struct parse_data *data,
1348 struct wpa_ssid *ssid)
1349 {
1350 return wpa_config_write_wep_key(ssid, 3);
1351 }
1352 #endif /* NO_CONFIG_WRITE */
1353
1354
1355 #ifdef CONFIG_P2P
1356
1357 static int wpa_config_parse_p2p_client_list(const struct parse_data *data,
1358 struct wpa_ssid *ssid, int line,
1359 const char *value)
1360 {
1361 const char *pos;
1362 u8 *buf, *n, addr[ETH_ALEN];
1363 size_t count;
1364
1365 buf = NULL;
1366 count = 0;
1367
1368 pos = value;
1369 while (pos && *pos) {
1370 while (*pos == ' ')
1371 pos++;
1372
1373 if (hwaddr_aton(pos, addr)) {
1374 wpa_printf(MSG_ERROR, "Line %d: Invalid "
1375 "p2p_client_list address '%s'.",
1376 line, value);
1377 /* continue anyway */
1378 } else {
1379 n = os_realloc(buf, (count + 1) * ETH_ALEN);
1380 if (n == NULL) {
1381 os_free(buf);
1382 return -1;
1383 }
1384 buf = n;
1385 os_memcpy(buf + count * ETH_ALEN, addr, ETH_ALEN);
1386 count++;
1387 wpa_hexdump(MSG_MSGDUMP, "p2p_client_list",
1388 addr, ETH_ALEN);
1389 }
1390
1391 pos = os_strchr(pos, ' ');
1392 }
1393
1394 os_free(ssid->p2p_client_list);
1395 ssid->p2p_client_list = buf;
1396 ssid->num_p2p_clients = count;
1397
1398 return 0;
1399 }
1400
1401
1402 #ifndef NO_CONFIG_WRITE
1403 static char * wpa_config_write_p2p_client_list(const struct parse_data *data,
1404 struct wpa_ssid *ssid)
1405 {
1406 char *value, *end, *pos;
1407 int res;
1408 size_t i;
1409
1410 if (ssid->p2p_client_list == NULL || ssid->num_p2p_clients == 0)
1411 return NULL;
1412
1413 value = os_malloc(20 * ssid->num_p2p_clients);
1414 if (value == NULL)
1415 return NULL;
1416 pos = value;
1417 end = value + 20 * ssid->num_p2p_clients;
1418
1419 for (i = 0; i < ssid->num_p2p_clients; i++) {
1420 res = os_snprintf(pos, end - pos, MACSTR " ",
1421 MAC2STR(ssid->p2p_client_list +
1422 i * ETH_ALEN));
1423 if (res < 0 || res >= end - pos) {
1424 os_free(value);
1425 return NULL;
1426 }
1427 pos += res;
1428 }
1429
1430 if (pos > value)
1431 pos[-1] = '\0';
1432
1433 return value;
1434 }
1435 #endif /* NO_CONFIG_WRITE */
1436
1437 #endif /* CONFIG_P2P */
1438
1439 /* Helper macros for network block parser */
1440
1441 #ifdef OFFSET
1442 #undef OFFSET
1443 #endif /* OFFSET */
1444 /* OFFSET: Get offset of a variable within the wpa_ssid structure */
1445 #define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
1446
1447 /* STR: Define a string variable for an ASCII string; f = field name */
1448 #ifdef NO_CONFIG_WRITE
1449 #define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
1450 #define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
1451 #else /* NO_CONFIG_WRITE */
1452 #define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
1453 #define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
1454 #endif /* NO_CONFIG_WRITE */
1455 #define STR(f) _STR(f), NULL, NULL, NULL, 0
1456 #define STRe(f) _STRe(f), NULL, NULL, NULL, 0
1457 #define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
1458 #define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
1459
1460 /* STR_LEN: Define a string variable with a separate variable for storing the
1461 * data length. Unlike STR(), this can be used to store arbitrary binary data
1462 * (i.e., even nul termination character). */
1463 #define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
1464 #define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
1465 #define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
1466 #define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
1467 #define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
1468
1469 /* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
1470 * explicitly specified. */
1471 #define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
1472 #define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
1473 #define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
1474
1475 #ifdef NO_CONFIG_WRITE
1476 #define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
1477 #define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
1478 #else /* NO_CONFIG_WRITE */
1479 #define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1480 OFFSET(f), (void *) 0
1481 #define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1482 OFFSET(eap.f), (void *) 0
1483 #endif /* NO_CONFIG_WRITE */
1484
1485 /* INT: Define an integer variable */
1486 #define INT(f) _INT(f), NULL, NULL, 0
1487 #define INTe(f) _INTe(f), NULL, NULL, 0
1488
1489 /* INT_RANGE: Define an integer variable with allowed value range */
1490 #define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
1491
1492 /* FUNC: Define a configuration variable that uses a custom function for
1493 * parsing and writing the value. */
1494 #ifdef NO_CONFIG_WRITE
1495 #define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
1496 #else /* NO_CONFIG_WRITE */
1497 #define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
1498 NULL, NULL, NULL, NULL
1499 #endif /* NO_CONFIG_WRITE */
1500 #define FUNC(f) _FUNC(f), 0
1501 #define FUNC_KEY(f) _FUNC(f), 1
1502
1503 /*
1504 * Table of network configuration variables. This table is used to parse each
1505 * network configuration variable, e.g., each line in wpa_supplicant.conf file
1506 * that is inside a network block.
1507 *
1508 * This table is generated using the helper macros defined above and with
1509 * generous help from the C pre-processor. The field name is stored as a string
1510 * into .name and for STR and INT types, the offset of the target buffer within
1511 * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
1512 * offset to the field containing the length of the configuration variable.
1513 * .param3 and .param4 can be used to mark the allowed range (length for STR
1514 * and value for INT).
1515 *
1516 * For each configuration line in wpa_supplicant.conf, the parser goes through
1517 * this table and select the entry that matches with the field name. The parser
1518 * function (.parser) is then called to parse the actual value of the field.
1519 *
1520 * This kind of mechanism makes it easy to add new configuration parameters,
1521 * since only one line needs to be added into this table and into the
1522 * struct wpa_ssid definition if the new variable is either a string or
1523 * integer. More complex types will need to use their own parser and writer
1524 * functions.
1525 */
1526 static const struct parse_data ssid_fields[] = {
1527 { STR_RANGE(ssid, 0, MAX_SSID_LEN) },
1528 { INT_RANGE(scan_ssid, 0, 1) },
1529 { FUNC(bssid) },
1530 { FUNC_KEY(psk) },
1531 { FUNC(proto) },
1532 { FUNC(key_mgmt) },
1533 { INT(bg_scan_period) },
1534 { FUNC(pairwise) },
1535 { FUNC(group) },
1536 { FUNC(auth_alg) },
1537 { FUNC(scan_freq) },
1538 { FUNC(freq_list) },
1539 #ifdef IEEE8021X_EAPOL
1540 { FUNC(eap) },
1541 { STR_LENe(identity) },
1542 { STR_LENe(anonymous_identity) },
1543 { FUNC_KEY(password) },
1544 { STRe(ca_cert) },
1545 { STRe(ca_path) },
1546 { STRe(client_cert) },
1547 { STRe(private_key) },
1548 { STR_KEYe(private_key_passwd) },
1549 { STRe(dh_file) },
1550 { STRe(subject_match) },
1551 { STRe(altsubject_match) },
1552 { STRe(ca_cert2) },
1553 { STRe(ca_path2) },
1554 { STRe(client_cert2) },
1555 { STRe(private_key2) },
1556 { STR_KEYe(private_key2_passwd) },
1557 { STRe(dh_file2) },
1558 { STRe(subject_match2) },
1559 { STRe(altsubject_match2) },
1560 { STRe(phase1) },
1561 { STRe(phase2) },
1562 { STRe(pcsc) },
1563 { STR_KEYe(pin) },
1564 { STRe(engine_id) },
1565 { STRe(key_id) },
1566 { STRe(cert_id) },
1567 { STRe(ca_cert_id) },
1568 { STR_KEYe(pin2) },
1569 { STRe(engine2_id) },
1570 { STRe(key2_id) },
1571 { STRe(cert2_id) },
1572 { STRe(ca_cert2_id) },
1573 { INTe(engine) },
1574 { INTe(engine2) },
1575 { INT(eapol_flags) },
1576 #endif /* IEEE8021X_EAPOL */
1577 { FUNC_KEY(wep_key0) },
1578 { FUNC_KEY(wep_key1) },
1579 { FUNC_KEY(wep_key2) },
1580 { FUNC_KEY(wep_key3) },
1581 { INT(wep_tx_keyidx) },
1582 { INT(priority) },
1583 #ifdef IEEE8021X_EAPOL
1584 { INT(eap_workaround) },
1585 { STRe(pac_file) },
1586 { INTe(fragment_size) },
1587 #endif /* IEEE8021X_EAPOL */
1588 { INT_RANGE(mode, 0, 4) },
1589 { INT_RANGE(proactive_key_caching, 0, 1) },
1590 { INT_RANGE(disabled, 0, 2) },
1591 { STR(id_str) },
1592 #ifdef CONFIG_IEEE80211W
1593 { INT_RANGE(ieee80211w, 0, 2) },
1594 #endif /* CONFIG_IEEE80211W */
1595 { INT_RANGE(peerkey, 0, 1) },
1596 { INT_RANGE(mixed_cell, 0, 1) },
1597 { INT_RANGE(frequency, 0, 10000) },
1598 { INT(wpa_ptk_rekey) },
1599 { STR(bgscan) },
1600 { INT_RANGE(ignore_broadcast_ssid, 0, 2) },
1601 #ifdef CONFIG_P2P
1602 { FUNC(p2p_client_list) },
1603 #endif /* CONFIG_P2P */
1604 #ifdef CONFIG_HT_OVERRIDES
1605 { INT_RANGE(disable_ht, 0, 1) },
1606 { INT_RANGE(disable_ht40, -1, 1) },
1607 { INT_RANGE(disable_max_amsdu, -1, 1) },
1608 { INT_RANGE(ampdu_factor, -1, 3) },
1609 { INT_RANGE(ampdu_density, -1, 7) },
1610 { STR(ht_mcs) },
1611 #endif /* CONFIG_HT_OVERRIDES */
1612 { INT(ap_max_inactivity) },
1613 };
1614
1615 #undef OFFSET
1616 #undef _STR
1617 #undef STR
1618 #undef STR_KEY
1619 #undef _STR_LEN
1620 #undef STR_LEN
1621 #undef STR_LEN_KEY
1622 #undef _STR_RANGE
1623 #undef STR_RANGE
1624 #undef STR_RANGE_KEY
1625 #undef _INT
1626 #undef INT
1627 #undef INT_RANGE
1628 #undef _FUNC
1629 #undef FUNC
1630 #undef FUNC_KEY
1631 #define NUM_SSID_FIELDS (sizeof(ssid_fields) / sizeof(ssid_fields[0]))
1632
1633
1634 /**
1635 * wpa_config_add_prio_network - Add a network to priority lists
1636 * @config: Configuration data from wpa_config_read()
1637 * @ssid: Pointer to the network configuration to be added to the list
1638 * Returns: 0 on success, -1 on failure
1639 *
1640 * This function is used to add a network block to the priority list of
1641 * networks. This must be called for each network when reading in the full
1642 * configuration. In addition, this can be used indirectly when updating
1643 * priorities by calling wpa_config_update_prio_list().
1644 */
1645 int wpa_config_add_prio_network(struct wpa_config *config,
1646 struct wpa_ssid *ssid)
1647 {
1648 int prio;
1649 struct wpa_ssid *prev, **nlist;
1650
1651 /*
1652 * Add to an existing priority list if one is available for the
1653 * configured priority level for this network.
1654 */
1655 for (prio = 0; prio < config->num_prio; prio++) {
1656 prev = config->pssid[prio];
1657 if (prev->priority == ssid->priority) {
1658 while (prev->pnext)
1659 prev = prev->pnext;
1660 prev->pnext = ssid;
1661 return 0;
1662 }
1663 }
1664
1665 /* First network for this priority - add a new priority list */
1666 nlist = os_realloc(config->pssid,
1667 (config->num_prio + 1) * sizeof(struct wpa_ssid *));
1668 if (nlist == NULL)
1669 return -1;
1670
1671 for (prio = 0; prio < config->num_prio; prio++) {
1672 if (nlist[prio]->priority < ssid->priority) {
1673 os_memmove(&nlist[prio + 1], &nlist[prio],
1674 (config->num_prio - prio) *
1675 sizeof(struct wpa_ssid *));
1676 break;
1677 }
1678 }
1679
1680 nlist[prio] = ssid;
1681 config->num_prio++;
1682 config->pssid = nlist;
1683
1684 return 0;
1685 }
1686
1687
1688 /**
1689 * wpa_config_update_prio_list - Update network priority list
1690 * @config: Configuration data from wpa_config_read()
1691 * Returns: 0 on success, -1 on failure
1692 *
1693 * This function is called to update the priority list of networks in the
1694 * configuration when a network is being added or removed. This is also called
1695 * if a priority for a network is changed.
1696 */
1697 int wpa_config_update_prio_list(struct wpa_config *config)
1698 {
1699 struct wpa_ssid *ssid;
1700 int ret = 0;
1701
1702 os_free(config->pssid);
1703 config->pssid = NULL;
1704 config->num_prio = 0;
1705
1706 ssid = config->ssid;
1707 while (ssid) {
1708 ssid->pnext = NULL;
1709 if (wpa_config_add_prio_network(config, ssid) < 0)
1710 ret = -1;
1711 ssid = ssid->next;
1712 }
1713
1714 return ret;
1715 }
1716
1717
1718 #ifdef IEEE8021X_EAPOL
1719 static void eap_peer_config_free(struct eap_peer_config *eap)
1720 {
1721 os_free(eap->eap_methods);
1722 os_free(eap->identity);
1723 os_free(eap->anonymous_identity);
1724 os_free(eap->password);
1725 os_free(eap->ca_cert);
1726 os_free(eap->ca_path);
1727 os_free(eap->client_cert);
1728 os_free(eap->private_key);
1729 os_free(eap->private_key_passwd);
1730 os_free(eap->dh_file);
1731 os_free(eap->subject_match);
1732 os_free(eap->altsubject_match);
1733 os_free(eap->ca_cert2);
1734 os_free(eap->ca_path2);
1735 os_free(eap->client_cert2);
1736 os_free(eap->private_key2);
1737 os_free(eap->private_key2_passwd);
1738 os_free(eap->dh_file2);
1739 os_free(eap->subject_match2);
1740 os_free(eap->altsubject_match2);
1741 os_free(eap->phase1);
1742 os_free(eap->phase2);
1743 os_free(eap->pcsc);
1744 os_free(eap->pin);
1745 os_free(eap->engine_id);
1746 os_free(eap->key_id);
1747 os_free(eap->cert_id);
1748 os_free(eap->ca_cert_id);
1749 os_free(eap->key2_id);
1750 os_free(eap->cert2_id);
1751 os_free(eap->ca_cert2_id);
1752 os_free(eap->pin2);
1753 os_free(eap->engine2_id);
1754 os_free(eap->otp);
1755 os_free(eap->pending_req_otp);
1756 os_free(eap->pac_file);
1757 os_free(eap->new_password);
1758 }
1759 #endif /* IEEE8021X_EAPOL */
1760
1761
1762 /**
1763 * wpa_config_free_ssid - Free network/ssid configuration data
1764 * @ssid: Configuration data for the network
1765 *
1766 * This function frees all resources allocated for the network configuration
1767 * data.
1768 */
1769 void wpa_config_free_ssid(struct wpa_ssid *ssid)
1770 {
1771 os_free(ssid->ssid);
1772 os_free(ssid->passphrase);
1773 #ifdef IEEE8021X_EAPOL
1774 eap_peer_config_free(&ssid->eap);
1775 #endif /* IEEE8021X_EAPOL */
1776 os_free(ssid->id_str);
1777 os_free(ssid->scan_freq);
1778 os_free(ssid->freq_list);
1779 os_free(ssid->bgscan);
1780 os_free(ssid->p2p_client_list);
1781 #ifdef CONFIG_HT_OVERRIDES
1782 os_free(ssid->ht_mcs);
1783 #endif /* CONFIG_HT_OVERRIDES */
1784 os_free(ssid);
1785 }
1786
1787
1788 void wpa_config_free_cred(struct wpa_cred *cred)
1789 {
1790 os_free(cred->realm);
1791 os_free(cred->username);
1792 os_free(cred->password);
1793 os_free(cred->ca_cert);
1794 os_free(cred->client_cert);
1795 os_free(cred->private_key);
1796 os_free(cred->private_key_passwd);
1797 os_free(cred->imsi);
1798 os_free(cred->milenage);
1799 os_free(cred->domain);
1800 os_free(cred);
1801 }
1802
1803
1804 /**
1805 * wpa_config_free - Free configuration data
1806 * @config: Configuration data from wpa_config_read()
1807 *
1808 * This function frees all resources allocated for the configuration data by
1809 * wpa_config_read().
1810 */
1811 void wpa_config_free(struct wpa_config *config)
1812 {
1813 #ifndef CONFIG_NO_CONFIG_BLOBS
1814 struct wpa_config_blob *blob, *prevblob;
1815 #endif /* CONFIG_NO_CONFIG_BLOBS */
1816 struct wpa_ssid *ssid, *prev = NULL;
1817 struct wpa_cred *cred, *cprev;
1818
1819 ssid = config->ssid;
1820 while (ssid) {
1821 prev = ssid;
1822 ssid = ssid->next;
1823 wpa_config_free_ssid(prev);
1824 }
1825
1826 cred = config->cred;
1827 while (cred) {
1828 cprev = cred;
1829 cred = cred->next;
1830 wpa_config_free_cred(cprev);
1831 }
1832
1833 #ifndef CONFIG_NO_CONFIG_BLOBS
1834 blob = config->blobs;
1835 prevblob = NULL;
1836 while (blob) {
1837 prevblob = blob;
1838 blob = blob->next;
1839 wpa_config_free_blob(prevblob);
1840 }
1841 #endif /* CONFIG_NO_CONFIG_BLOBS */
1842
1843 wpabuf_free(config->wps_vendor_ext_m1);
1844 os_free(config->ctrl_interface);
1845 os_free(config->ctrl_interface_group);
1846 os_free(config->opensc_engine_path);
1847 os_free(config->pkcs11_engine_path);
1848 os_free(config->pkcs11_module_path);
1849 os_free(config->pcsc_reader);
1850 os_free(config->pcsc_pin);
1851 os_free(config->driver_param);
1852 os_free(config->device_name);
1853 os_free(config->manufacturer);
1854 os_free(config->model_name);
1855 os_free(config->model_number);
1856 os_free(config->serial_number);
1857 os_free(config->config_methods);
1858 os_free(config->p2p_ssid_postfix);
1859 os_free(config->pssid);
1860 os_free(config->p2p_pref_chan);
1861 os_free(config);
1862 }
1863
1864
1865 /**
1866 * wpa_config_foreach_network - Iterate over each configured network
1867 * @config: Configuration data from wpa_config_read()
1868 * @func: Callback function to process each network
1869 * @arg: Opaque argument to pass to callback function
1870 *
1871 * Iterate over the set of configured networks calling the specified
1872 * function for each item. We guard against callbacks removing the
1873 * supplied network.
1874 */
1875 void wpa_config_foreach_network(struct wpa_config *config,
1876 void (*func)(void *, struct wpa_ssid *),
1877 void *arg)
1878 {
1879 struct wpa_ssid *ssid, *next;
1880
1881 ssid = config->ssid;
1882 while (ssid) {
1883 next = ssid->next;
1884 func(arg, ssid);
1885 ssid = next;
1886 }
1887 }
1888
1889
1890 /**
1891 * wpa_config_get_network - Get configured network based on id
1892 * @config: Configuration data from wpa_config_read()
1893 * @id: Unique network id to search for
1894 * Returns: Network configuration or %NULL if not found
1895 */
1896 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
1897 {
1898 struct wpa_ssid *ssid;
1899
1900 ssid = config->ssid;
1901 while (ssid) {
1902 if (id == ssid->id)
1903 break;
1904 ssid = ssid->next;
1905 }
1906
1907 return ssid;
1908 }
1909
1910
1911 /**
1912 * wpa_config_add_network - Add a new network with empty configuration
1913 * @config: Configuration data from wpa_config_read()
1914 * Returns: The new network configuration or %NULL if operation failed
1915 */
1916 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
1917 {
1918 int id;
1919 struct wpa_ssid *ssid, *last = NULL;
1920
1921 id = -1;
1922 ssid = config->ssid;
1923 while (ssid) {
1924 if (ssid->id > id)
1925 id = ssid->id;
1926 last = ssid;
1927 ssid = ssid->next;
1928 }
1929 id++;
1930
1931 ssid = os_zalloc(sizeof(*ssid));
1932 if (ssid == NULL)
1933 return NULL;
1934 ssid->id = id;
1935 if (last)
1936 last->next = ssid;
1937 else
1938 config->ssid = ssid;
1939
1940 wpa_config_update_prio_list(config);
1941
1942 return ssid;
1943 }
1944
1945
1946 /**
1947 * wpa_config_remove_network - Remove a configured network based on id
1948 * @config: Configuration data from wpa_config_read()
1949 * @id: Unique network id to search for
1950 * Returns: 0 on success, or -1 if the network was not found
1951 */
1952 int wpa_config_remove_network(struct wpa_config *config, int id)
1953 {
1954 struct wpa_ssid *ssid, *prev = NULL;
1955
1956 ssid = config->ssid;
1957 while (ssid) {
1958 if (id == ssid->id)
1959 break;
1960 prev = ssid;
1961 ssid = ssid->next;
1962 }
1963
1964 if (ssid == NULL)
1965 return -1;
1966
1967 if (prev)
1968 prev->next = ssid->next;
1969 else
1970 config->ssid = ssid->next;
1971
1972 wpa_config_update_prio_list(config);
1973 wpa_config_free_ssid(ssid);
1974 return 0;
1975 }
1976
1977
1978 /**
1979 * wpa_config_set_network_defaults - Set network default values
1980 * @ssid: Pointer to network configuration data
1981 */
1982 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
1983 {
1984 ssid->proto = DEFAULT_PROTO;
1985 ssid->pairwise_cipher = DEFAULT_PAIRWISE;
1986 ssid->group_cipher = DEFAULT_GROUP;
1987 ssid->key_mgmt = DEFAULT_KEY_MGMT;
1988 ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
1989 #ifdef IEEE8021X_EAPOL
1990 ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
1991 ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
1992 ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
1993 #endif /* IEEE8021X_EAPOL */
1994 #ifdef CONFIG_HT_OVERRIDES
1995 ssid->disable_ht = DEFAULT_DISABLE_HT;
1996 ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
1997 ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
1998 ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
1999 ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2000 #endif /* CONFIG_HT_OVERRIDES */
2001 }
2002
2003
2004 /**
2005 * wpa_config_set - Set a variable in network configuration
2006 * @ssid: Pointer to network configuration data
2007 * @var: Variable name, e.g., "ssid"
2008 * @value: Variable value
2009 * @line: Line number in configuration file or 0 if not used
2010 * Returns: 0 on success, -1 on failure
2011 *
2012 * This function can be used to set network configuration variables based on
2013 * both the configuration file and management interface input. The value
2014 * parameter must be in the same format as the text-based configuration file is
2015 * using. For example, strings are using double quotation marks.
2016 */
2017 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2018 int line)
2019 {
2020 size_t i;
2021 int ret = 0;
2022
2023 if (ssid == NULL || var == NULL || value == NULL)
2024 return -1;
2025
2026 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2027 const struct parse_data *field = &ssid_fields[i];
2028 if (os_strcmp(var, field->name) != 0)
2029 continue;
2030
2031 if (field->parser(field, ssid, line, value)) {
2032 if (line) {
2033 wpa_printf(MSG_ERROR, "Line %d: failed to "
2034 "parse %s '%s'.", line, var, value);
2035 }
2036 ret = -1;
2037 }
2038 break;
2039 }
2040 if (i == NUM_SSID_FIELDS) {
2041 if (line) {
2042 wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2043 "'%s'.", line, var);
2044 }
2045 ret = -1;
2046 }
2047
2048 return ret;
2049 }
2050
2051
2052 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2053 const char *value)
2054 {
2055 size_t len;
2056 char *buf;
2057 int ret;
2058
2059 len = os_strlen(value);
2060 buf = os_malloc(len + 3);
2061 if (buf == NULL)
2062 return -1;
2063 buf[0] = '"';
2064 os_memcpy(buf + 1, value, len);
2065 buf[len + 1] = '"';
2066 buf[len + 2] = '\0';
2067 ret = wpa_config_set(ssid, var, buf, 0);
2068 os_free(buf);
2069 return ret;
2070 }
2071
2072
2073 /**
2074 * wpa_config_get_all - Get all options from network configuration
2075 * @ssid: Pointer to network configuration data
2076 * @get_keys: Determines if keys/passwords will be included in returned list
2077 * (if they may be exported)
2078 * Returns: %NULL terminated list of all set keys and their values in the form
2079 * of [key1, val1, key2, val2, ... , NULL]
2080 *
2081 * This function can be used to get list of all configured network properties.
2082 * The caller is responsible for freeing the returned list and all its
2083 * elements.
2084 */
2085 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2086 {
2087 const struct parse_data *field;
2088 char *key, *value;
2089 size_t i;
2090 char **props;
2091 int fields_num;
2092
2093 get_keys = get_keys && ssid->export_keys;
2094
2095 props = os_zalloc(sizeof(char *) * ((2 * NUM_SSID_FIELDS) + 1));
2096 if (!props)
2097 return NULL;
2098
2099 fields_num = 0;
2100 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2101 field = &ssid_fields[i];
2102 if (field->key_data && !get_keys)
2103 continue;
2104 value = field->writer(field, ssid);
2105 if (value == NULL)
2106 continue;
2107 if (os_strlen(value) == 0) {
2108 os_free(value);
2109 continue;
2110 }
2111
2112 key = os_strdup(field->name);
2113 if (key == NULL) {
2114 os_free(value);
2115 goto err;
2116 }
2117
2118 props[fields_num * 2] = key;
2119 props[fields_num * 2 + 1] = value;
2120
2121 fields_num++;
2122 }
2123
2124 return props;
2125
2126 err:
2127 value = *props;
2128 while (value)
2129 os_free(value++);
2130 os_free(props);
2131 return NULL;
2132 }
2133
2134
2135 #ifndef NO_CONFIG_WRITE
2136 /**
2137 * wpa_config_get - Get a variable in network configuration
2138 * @ssid: Pointer to network configuration data
2139 * @var: Variable name, e.g., "ssid"
2140 * Returns: Value of the variable or %NULL on failure
2141 *
2142 * This function can be used to get network configuration variables. The
2143 * returned value is a copy of the configuration variable in text format, i.e,.
2144 * the same format that the text-based configuration file and wpa_config_set()
2145 * are using for the value. The caller is responsible for freeing the returned
2146 * value.
2147 */
2148 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2149 {
2150 size_t i;
2151
2152 if (ssid == NULL || var == NULL)
2153 return NULL;
2154
2155 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2156 const struct parse_data *field = &ssid_fields[i];
2157 if (os_strcmp(var, field->name) == 0)
2158 return field->writer(field, ssid);
2159 }
2160
2161 return NULL;
2162 }
2163
2164
2165 /**
2166 * wpa_config_get_no_key - Get a variable in network configuration (no keys)
2167 * @ssid: Pointer to network configuration data
2168 * @var: Variable name, e.g., "ssid"
2169 * Returns: Value of the variable or %NULL on failure
2170 *
2171 * This function can be used to get network configuration variable like
2172 * wpa_config_get(). The only difference is that this functions does not expose
2173 * key/password material from the configuration. In case a key/password field
2174 * is requested, the returned value is an empty string or %NULL if the variable
2175 * is not set or "*" if the variable is set (regardless of its value). The
2176 * returned value is a copy of the configuration variable in text format, i.e,.
2177 * the same format that the text-based configuration file and wpa_config_set()
2178 * are using for the value. The caller is responsible for freeing the returned
2179 * value.
2180 */
2181 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
2182 {
2183 size_t i;
2184
2185 if (ssid == NULL || var == NULL)
2186 return NULL;
2187
2188 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2189 const struct parse_data *field = &ssid_fields[i];
2190 if (os_strcmp(var, field->name) == 0) {
2191 char *res = field->writer(field, ssid);
2192 if (field->key_data) {
2193 if (res && res[0]) {
2194 wpa_printf(MSG_DEBUG, "Do not allow "
2195 "key_data field to be "
2196 "exposed");
2197 os_free(res);
2198 return os_strdup("*");
2199 }
2200
2201 os_free(res);
2202 return NULL;
2203 }
2204 return res;
2205 }
2206 }
2207
2208 return NULL;
2209 }
2210 #endif /* NO_CONFIG_WRITE */
2211
2212
2213 /**
2214 * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
2215 * @ssid: Pointer to network configuration data
2216 *
2217 * This function must be called to update WPA PSK when either SSID or the
2218 * passphrase has changed for the network configuration.
2219 */
2220 void wpa_config_update_psk(struct wpa_ssid *ssid)
2221 {
2222 #ifndef CONFIG_NO_PBKDF2
2223 pbkdf2_sha1(ssid->passphrase,
2224 (char *) ssid->ssid, ssid->ssid_len, 4096,
2225 ssid->psk, PMK_LEN);
2226 wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
2227 ssid->psk, PMK_LEN);
2228 ssid->psk_set = 1;
2229 #endif /* CONFIG_NO_PBKDF2 */
2230 }
2231
2232
2233 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
2234 const char *value, int line)
2235 {
2236 char *val;
2237 size_t len;
2238
2239 if (os_strcmp(var, "priority") == 0) {
2240 cred->priority = atoi(value);
2241 return 0;
2242 }
2243
2244 if (os_strcmp(var, "pcsc") == 0) {
2245 cred->pcsc = atoi(value);
2246 return 0;
2247 }
2248
2249 val = wpa_config_parse_string(value, &len);
2250 if (val == NULL) {
2251 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
2252 "value '%s'.", line, var, value);
2253 return -1;
2254 }
2255
2256 if (os_strcmp(var, "realm") == 0) {
2257 os_free(cred->realm);
2258 cred->realm = val;
2259 return 0;
2260 }
2261
2262 if (os_strcmp(var, "username") == 0) {
2263 os_free(cred->username);
2264 cred->username = val;
2265 return 0;
2266 }
2267
2268 if (os_strcmp(var, "password") == 0) {
2269 os_free(cred->password);
2270 cred->password = val;
2271 return 0;
2272 }
2273
2274 if (os_strcmp(var, "ca_cert") == 0) {
2275 os_free(cred->ca_cert);
2276 cred->ca_cert = val;
2277 return 0;
2278 }
2279
2280 if (os_strcmp(var, "client_cert") == 0) {
2281 os_free(cred->client_cert);
2282 cred->client_cert = val;
2283 return 0;
2284 }
2285
2286 if (os_strcmp(var, "private_key") == 0) {
2287 os_free(cred->private_key);
2288 cred->private_key = val;
2289 return 0;
2290 }
2291
2292 if (os_strcmp(var, "private_key_passwd") == 0) {
2293 os_free(cred->private_key_passwd);
2294 cred->private_key_passwd = val;
2295 return 0;
2296 }
2297
2298 if (os_strcmp(var, "imsi") == 0) {
2299 os_free(cred->imsi);
2300 cred->imsi = val;
2301 return 0;
2302 }
2303
2304 if (os_strcmp(var, "milenage") == 0) {
2305 os_free(cred->milenage);
2306 cred->milenage = val;
2307 return 0;
2308 }
2309
2310 if (os_strcmp(var, "domain") == 0) {
2311 os_free(cred->domain);
2312 cred->domain = val;
2313 return 0;
2314 }
2315
2316 if (line) {
2317 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
2318 line, var);
2319 }
2320
2321 os_free(val);
2322
2323 return -1;
2324 }
2325
2326
2327 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
2328 {
2329 struct wpa_cred *cred;
2330
2331 cred = config->cred;
2332 while (cred) {
2333 if (id == cred->id)
2334 break;
2335 cred = cred->next;
2336 }
2337
2338 return cred;
2339 }
2340
2341
2342 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
2343 {
2344 int id;
2345 struct wpa_cred *cred, *last = NULL;
2346
2347 id = -1;
2348 cred = config->cred;
2349 while (cred) {
2350 if (cred->id > id)
2351 id = cred->id;
2352 last = cred;
2353 cred = cred->next;
2354 }
2355 id++;
2356
2357 cred = os_zalloc(sizeof(*cred));
2358 if (cred == NULL)
2359 return NULL;
2360 cred->id = id;
2361 if (last)
2362 last->next = cred;
2363 else
2364 config->cred = cred;
2365
2366 return cred;
2367 }
2368
2369
2370 int wpa_config_remove_cred(struct wpa_config *config, int id)
2371 {
2372 struct wpa_cred *cred, *prev = NULL;
2373
2374 cred = config->cred;
2375 while (cred) {
2376 if (id == cred->id)
2377 break;
2378 prev = cred;
2379 cred = cred->next;
2380 }
2381
2382 if (cred == NULL)
2383 return -1;
2384
2385 if (prev)
2386 prev->next = cred->next;
2387 else
2388 config->cred = cred->next;
2389
2390 wpa_config_free_cred(cred);
2391 return 0;
2392 }
2393
2394
2395 #ifndef CONFIG_NO_CONFIG_BLOBS
2396 /**
2397 * wpa_config_get_blob - Get a named configuration blob
2398 * @config: Configuration data from wpa_config_read()
2399 * @name: Name of the blob
2400 * Returns: Pointer to blob data or %NULL if not found
2401 */
2402 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
2403 const char *name)
2404 {
2405 struct wpa_config_blob *blob = config->blobs;
2406
2407 while (blob) {
2408 if (os_strcmp(blob->name, name) == 0)
2409 return blob;
2410 blob = blob->next;
2411 }
2412 return NULL;
2413 }
2414
2415
2416 /**
2417 * wpa_config_set_blob - Set or add a named configuration blob
2418 * @config: Configuration data from wpa_config_read()
2419 * @blob: New value for the blob
2420 *
2421 * Adds a new configuration blob or replaces the current value of an existing
2422 * blob.
2423 */
2424 void wpa_config_set_blob(struct wpa_config *config,
2425 struct wpa_config_blob *blob)
2426 {
2427 wpa_config_remove_blob(config, blob->name);
2428 blob->next = config->blobs;
2429 config->blobs = blob;
2430 }
2431
2432
2433 /**
2434 * wpa_config_free_blob - Free blob data
2435 * @blob: Pointer to blob to be freed
2436 */
2437 void wpa_config_free_blob(struct wpa_config_blob *blob)
2438 {
2439 if (blob) {
2440 os_free(blob->name);
2441 os_free(blob->data);
2442 os_free(blob);
2443 }
2444 }
2445
2446
2447 /**
2448 * wpa_config_remove_blob - Remove a named configuration blob
2449 * @config: Configuration data from wpa_config_read()
2450 * @name: Name of the blob to remove
2451 * Returns: 0 if blob was removed or -1 if blob was not found
2452 */
2453 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
2454 {
2455 struct wpa_config_blob *pos = config->blobs, *prev = NULL;
2456
2457 while (pos) {
2458 if (os_strcmp(pos->name, name) == 0) {
2459 if (prev)
2460 prev->next = pos->next;
2461 else
2462 config->blobs = pos->next;
2463 wpa_config_free_blob(pos);
2464 return 0;
2465 }
2466 prev = pos;
2467 pos = pos->next;
2468 }
2469
2470 return -1;
2471 }
2472 #endif /* CONFIG_NO_CONFIG_BLOBS */
2473
2474
2475 /**
2476 * wpa_config_alloc_empty - Allocate an empty configuration
2477 * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
2478 * socket
2479 * @driver_param: Driver parameters
2480 * Returns: Pointer to allocated configuration data or %NULL on failure
2481 */
2482 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
2483 const char *driver_param)
2484 {
2485 struct wpa_config *config;
2486
2487 config = os_zalloc(sizeof(*config));
2488 if (config == NULL)
2489 return NULL;
2490 config->eapol_version = DEFAULT_EAPOL_VERSION;
2491 config->ap_scan = DEFAULT_AP_SCAN;
2492 config->fast_reauth = DEFAULT_FAST_REAUTH;
2493 config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
2494 config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
2495 config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
2496 config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
2497 config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
2498 config->max_num_sta = DEFAULT_MAX_NUM_STA;
2499 config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
2500
2501 if (ctrl_interface)
2502 config->ctrl_interface = os_strdup(ctrl_interface);
2503 if (driver_param)
2504 config->driver_param = os_strdup(driver_param);
2505
2506 return config;
2507 }
2508
2509
2510 #ifndef CONFIG_NO_STDOUT_DEBUG
2511 /**
2512 * wpa_config_debug_dump_networks - Debug dump of configured networks
2513 * @config: Configuration data from wpa_config_read()
2514 */
2515 void wpa_config_debug_dump_networks(struct wpa_config *config)
2516 {
2517 int prio;
2518 struct wpa_ssid *ssid;
2519
2520 for (prio = 0; prio < config->num_prio; prio++) {
2521 ssid = config->pssid[prio];
2522 wpa_printf(MSG_DEBUG, "Priority group %d",
2523 ssid->priority);
2524 while (ssid) {
2525 wpa_printf(MSG_DEBUG, " id=%d ssid='%s'",
2526 ssid->id,
2527 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
2528 ssid = ssid->pnext;
2529 }
2530 }
2531 }
2532 #endif /* CONFIG_NO_STDOUT_DEBUG */
2533
2534
2535 struct global_parse_data {
2536 char *name;
2537 int (*parser)(const struct global_parse_data *data,
2538 struct wpa_config *config, int line, const char *value);
2539 void *param1, *param2, *param3;
2540 unsigned int changed_flag;
2541 };
2542
2543
2544 static int wpa_global_config_parse_int(const struct global_parse_data *data,
2545 struct wpa_config *config, int line,
2546 const char *pos)
2547 {
2548 int *dst;
2549 dst = (int *) (((u8 *) config) + (long) data->param1);
2550 *dst = atoi(pos);
2551 wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
2552
2553 if (data->param2 && *dst < (long) data->param2) {
2554 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
2555 "min_value=%ld)", line, data->name, *dst,
2556 (long) data->param2);
2557 *dst = (long) data->param2;
2558 return -1;
2559 }
2560
2561 if (data->param3 && *dst > (long) data->param3) {
2562 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
2563 "max_value=%ld)", line, data->name, *dst,
2564 (long) data->param3);
2565 *dst = (long) data->param3;
2566 return -1;
2567 }
2568
2569 return 0;
2570 }
2571
2572
2573 static int wpa_global_config_parse_str(const struct global_parse_data *data,
2574 struct wpa_config *config, int line,
2575 const char *pos)
2576 {
2577 size_t len;
2578 char **dst, *tmp;
2579
2580 len = os_strlen(pos);
2581 if (data->param2 && len < (size_t) data->param2) {
2582 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
2583 "min_len=%ld)", line, data->name,
2584 (unsigned long) len, (long) data->param2);
2585 return -1;
2586 }
2587
2588 if (data->param3 && len > (size_t) data->param3) {
2589 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
2590 "max_len=%ld)", line, data->name,
2591 (unsigned long) len, (long) data->param3);
2592 return -1;
2593 }
2594
2595 tmp = os_strdup(pos);
2596 if (tmp == NULL)
2597 return -1;
2598
2599 dst = (char **) (((u8 *) config) + (long) data->param1);
2600 os_free(*dst);
2601 *dst = tmp;
2602 wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
2603
2604 return 0;
2605 }
2606
2607
2608 static int wpa_config_process_country(const struct global_parse_data *data,
2609 struct wpa_config *config, int line,
2610 const char *pos)
2611 {
2612 if (!pos[0] || !pos[1]) {
2613 wpa_printf(MSG_DEBUG, "Invalid country set");
2614 return -1;
2615 }
2616 config->country[0] = pos[0];
2617 config->country[1] = pos[1];
2618 wpa_printf(MSG_DEBUG, "country='%c%c'",
2619 config->country[0], config->country[1]);
2620 return 0;
2621 }
2622
2623
2624 static int wpa_config_process_load_dynamic_eap(
2625 const struct global_parse_data *data, struct wpa_config *config,
2626 int line, const char *so)
2627 {
2628 int ret;
2629 wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
2630 ret = eap_peer_method_load(so);
2631 if (ret == -2) {
2632 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
2633 "reloading.");
2634 } else if (ret) {
2635 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
2636 "method '%s'.", line, so);
2637 return -1;
2638 }
2639
2640 return 0;
2641 }
2642
2643
2644 #ifdef CONFIG_WPS
2645
2646 static int wpa_config_process_uuid(const struct global_parse_data *data,
2647 struct wpa_config *config, int line,
2648 const char *pos)
2649 {
2650 char buf[40];
2651 if (uuid_str2bin(pos, config->uuid)) {
2652 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
2653 return -1;
2654 }
2655 uuid_bin2str(config->uuid, buf, sizeof(buf));
2656 wpa_printf(MSG_DEBUG, "uuid=%s", buf);
2657 return 0;
2658 }
2659
2660
2661 static int wpa_config_process_device_type(
2662 const struct global_parse_data *data,
2663 struct wpa_config *config, int line, const char *pos)
2664 {
2665 return wps_dev_type_str2bin(pos, config->device_type);
2666 }
2667
2668
2669 static int wpa_config_process_os_version(const struct global_parse_data *data,
2670 struct wpa_config *config, int line,
2671 const char *pos)
2672 {
2673 if (hexstr2bin(pos, config->os_version, 4)) {
2674 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
2675 return -1;
2676 }
2677 wpa_printf(MSG_DEBUG, "os_version=%08x",
2678 WPA_GET_BE32(config->os_version));
2679 return 0;
2680 }
2681
2682
2683 static int wpa_config_process_wps_vendor_ext_m1(
2684 const struct global_parse_data *data,
2685 struct wpa_config *config, int line, const char *pos)
2686 {
2687 struct wpabuf *tmp;
2688 int len = os_strlen(pos) / 2;
2689 u8 *p;
2690
2691 if (!len) {
2692 wpa_printf(MSG_ERROR, "Line %d: "
2693 "invalid wps_vendor_ext_m1", line);
2694 return -1;
2695 }
2696
2697 tmp = wpabuf_alloc(len);
2698 if (tmp) {
2699 p = wpabuf_put(tmp, len);
2700
2701 if (hexstr2bin(pos, p, len)) {
2702 wpa_printf(MSG_ERROR, "Line %d: "
2703 "invalid wps_vendor_ext_m1", line);
2704 wpabuf_free(tmp);
2705 return -1;
2706 }
2707
2708 wpabuf_free(config->wps_vendor_ext_m1);
2709 config->wps_vendor_ext_m1 = tmp;
2710 } else {
2711 wpa_printf(MSG_ERROR, "Can not allocate "
2712 "memory for wps_vendor_ext_m1");
2713 return -1;
2714 }
2715
2716 return 0;
2717 }
2718
2719 #endif /* CONFIG_WPS */
2720
2721 #ifdef CONFIG_P2P
2722 static int wpa_config_process_sec_device_type(
2723 const struct global_parse_data *data,
2724 struct wpa_config *config, int line, const char *pos)
2725 {
2726 int idx;
2727
2728 if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
2729 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
2730 "items", line);
2731 return -1;
2732 }
2733
2734 idx = config->num_sec_device_types;
2735
2736 if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
2737 return -1;
2738
2739 config->num_sec_device_types++;
2740 return 0;
2741 }
2742
2743
2744 static int wpa_config_process_p2p_pref_chan(
2745 const struct global_parse_data *data,
2746 struct wpa_config *config, int line, const char *pos)
2747 {
2748 struct p2p_channel *pref = NULL, *n;
2749 unsigned int num = 0;
2750 const char *pos2;
2751 u8 op_class, chan;
2752
2753 /* format: class:chan,class:chan,... */
2754
2755 while (*pos) {
2756 op_class = atoi(pos);
2757 pos2 = os_strchr(pos, ':');
2758 if (pos2 == NULL)
2759 goto fail;
2760 pos2++;
2761 chan = atoi(pos2);
2762
2763 n = os_realloc(pref, (num + 1) * sizeof(struct p2p_channel));
2764 if (n == NULL)
2765 goto fail;
2766 pref = n;
2767 pref[num].op_class = op_class;
2768 pref[num].chan = chan;
2769 num++;
2770
2771 pos = os_strchr(pos2, ',');
2772 if (pos == NULL)
2773 break;
2774 pos++;
2775 }
2776
2777 os_free(config->p2p_pref_chan);
2778 config->p2p_pref_chan = pref;
2779 config->num_p2p_pref_chan = num;
2780 wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
2781 (u8 *) config->p2p_pref_chan,
2782 config->num_p2p_pref_chan * sizeof(struct p2p_channel));
2783
2784 return 0;
2785
2786 fail:
2787 os_free(pref);
2788 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
2789 return -1;
2790 }
2791 #endif /* CONFIG_P2P */
2792
2793
2794 static int wpa_config_process_hessid(
2795 const struct global_parse_data *data,
2796 struct wpa_config *config, int line, const char *pos)
2797 {
2798 if (hwaddr_aton2(pos, config->hessid) < 0) {
2799 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
2800 line, pos);
2801 return -1;
2802 }
2803
2804 return 0;
2805 }
2806
2807
2808 #ifdef OFFSET
2809 #undef OFFSET
2810 #endif /* OFFSET */
2811 /* OFFSET: Get offset of a variable within the wpa_config structure */
2812 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
2813
2814 #define FUNC(f) #f, wpa_config_process_ ## f, OFFSET(f), NULL, NULL
2815 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL
2816 #define _INT(f) #f, wpa_global_config_parse_int, OFFSET(f)
2817 #define INT(f) _INT(f), NULL, NULL
2818 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
2819 #define _STR(f) #f, wpa_global_config_parse_str, OFFSET(f)
2820 #define STR(f) _STR(f), NULL, NULL
2821 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
2822
2823 static const struct global_parse_data global_fields[] = {
2824 #ifdef CONFIG_CTRL_IFACE
2825 { STR(ctrl_interface), 0 },
2826 { STR(ctrl_interface_group), 0 } /* deprecated */,
2827 #endif /* CONFIG_CTRL_IFACE */
2828 { INT_RANGE(eapol_version, 1, 2), 0 },
2829 { INT(ap_scan), 0 },
2830 { INT(disable_scan_offload), 0 },
2831 { INT(fast_reauth), 0 },
2832 { STR(opensc_engine_path), 0 },
2833 { STR(pkcs11_engine_path), 0 },
2834 { STR(pkcs11_module_path), 0 },
2835 { STR(pcsc_reader), 0 },
2836 { STR(pcsc_pin), 0 },
2837 { STR(driver_param), 0 },
2838 { INT(dot11RSNAConfigPMKLifetime), 0 },
2839 { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
2840 { INT(dot11RSNAConfigSATimeout), 0 },
2841 #ifndef CONFIG_NO_CONFIG_WRITE
2842 { INT(update_config), 0 },
2843 #endif /* CONFIG_NO_CONFIG_WRITE */
2844 { FUNC_NO_VAR(load_dynamic_eap), 0 },
2845 #ifdef CONFIG_WPS
2846 { FUNC(uuid), CFG_CHANGED_UUID },
2847 { STR_RANGE(device_name, 0, 32), CFG_CHANGED_DEVICE_NAME },
2848 { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
2849 { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
2850 { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
2851 { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
2852 { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
2853 { FUNC(os_version), CFG_CHANGED_OS_VERSION },
2854 { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
2855 { INT_RANGE(wps_cred_processing, 0, 2), 0 },
2856 { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
2857 #endif /* CONFIG_WPS */
2858 #ifdef CONFIG_P2P
2859 { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
2860 { INT(p2p_listen_reg_class), 0 },
2861 { INT(p2p_listen_channel), 0 },
2862 { INT(p2p_oper_reg_class), 0 },
2863 { INT(p2p_oper_channel), 0 },
2864 { INT_RANGE(p2p_go_intent, 0, 15), 0 },
2865 { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
2866 { INT_RANGE(persistent_reconnect, 0, 1), 0 },
2867 { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
2868 { INT(p2p_group_idle), 0 },
2869 { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
2870 #endif /* CONFIG_P2P */
2871 { FUNC(country), CFG_CHANGED_COUNTRY },
2872 { INT(bss_max_count), 0 },
2873 { INT(bss_expiration_age), 0 },
2874 { INT(bss_expiration_scan_count), 0 },
2875 { INT_RANGE(filter_ssids, 0, 1), 0 },
2876 { INT(max_num_sta), 0 },
2877 { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
2878 #ifdef CONFIG_HS20
2879 { INT_RANGE(hs20, 0, 1), 0 },
2880 #endif /* CONFIG_HS20 */
2881 { INT_RANGE(interworking, 0, 1), 0 },
2882 { FUNC(hessid), 0 },
2883 { INT_RANGE(access_network_type, 0, 15), 0 },
2884 { INT_RANGE(pbc_in_m1, 0, 1), 0 }
2885 };
2886
2887 #undef FUNC
2888 #undef _INT
2889 #undef INT
2890 #undef INT_RANGE
2891 #undef _STR
2892 #undef STR
2893 #undef STR_RANGE
2894 #define NUM_GLOBAL_FIELDS (sizeof(global_fields) / sizeof(global_fields[0]))
2895
2896
2897 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
2898 {
2899 size_t i;
2900 int ret = 0;
2901
2902 for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
2903 const struct global_parse_data *field = &global_fields[i];
2904 size_t flen = os_strlen(field->name);
2905 if (os_strncmp(pos, field->name, flen) != 0 ||
2906 pos[flen] != '=')
2907 continue;
2908
2909 if (field->parser(field, config, line, pos + flen + 1)) {
2910 wpa_printf(MSG_ERROR, "Line %d: failed to "
2911 "parse '%s'.", line, pos);
2912 ret = -1;
2913 }
2914 config->changed_parameters |= field->changed_flag;
2915 break;
2916 }
2917 if (i == NUM_GLOBAL_FIELDS) {
2918 if (line < 0)
2919 return -1;
2920 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
2921 line, pos);
2922 ret = -1;
2923 }
2924
2925 return ret;
2926 }
2927
2928
2929 int wpas_network_disabled(struct wpa_ssid *ssid)
2930 {
2931 int i;
2932
2933 if (ssid == NULL)
2934 return 1;
2935
2936 if (ssid->disabled)
2937 return 1;
2938
2939 for (i = 0; i < NUM_WEP_KEYS; i++) {
2940 size_t len = ssid->wep_key_len[i];
2941 if (len && len != 5 && len != 13 && len != 16)
2942 return 1; /* invalid WEP key */
2943 }
2944
2945 return 0;
2946 }
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