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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 { INT(dtim_period) },
1614 };
1615
1616 #undef OFFSET
1617 #undef _STR
1618 #undef STR
1619 #undef STR_KEY
1620 #undef _STR_LEN
1621 #undef STR_LEN
1622 #undef STR_LEN_KEY
1623 #undef _STR_RANGE
1624 #undef STR_RANGE
1625 #undef STR_RANGE_KEY
1626 #undef _INT
1627 #undef INT
1628 #undef INT_RANGE
1629 #undef _FUNC
1630 #undef FUNC
1631 #undef FUNC_KEY
1632 #define NUM_SSID_FIELDS (sizeof(ssid_fields) / sizeof(ssid_fields[0]))
1633
1634
1635 /**
1636 * wpa_config_add_prio_network - Add a network to priority lists
1637 * @config: Configuration data from wpa_config_read()
1638 * @ssid: Pointer to the network configuration to be added to the list
1639 * Returns: 0 on success, -1 on failure
1640 *
1641 * This function is used to add a network block to the priority list of
1642 * networks. This must be called for each network when reading in the full
1643 * configuration. In addition, this can be used indirectly when updating
1644 * priorities by calling wpa_config_update_prio_list().
1645 */
1646 int wpa_config_add_prio_network(struct wpa_config *config,
1647 struct wpa_ssid *ssid)
1648 {
1649 int prio;
1650 struct wpa_ssid *prev, **nlist;
1651
1652 /*
1653 * Add to an existing priority list if one is available for the
1654 * configured priority level for this network.
1655 */
1656 for (prio = 0; prio < config->num_prio; prio++) {
1657 prev = config->pssid[prio];
1658 if (prev->priority == ssid->priority) {
1659 while (prev->pnext)
1660 prev = prev->pnext;
1661 prev->pnext = ssid;
1662 return 0;
1663 }
1664 }
1665
1666 /* First network for this priority - add a new priority list */
1667 nlist = os_realloc(config->pssid,
1668 (config->num_prio + 1) * sizeof(struct wpa_ssid *));
1669 if (nlist == NULL)
1670 return -1;
1671
1672 for (prio = 0; prio < config->num_prio; prio++) {
1673 if (nlist[prio]->priority < ssid->priority) {
1674 os_memmove(&nlist[prio + 1], &nlist[prio],
1675 (config->num_prio - prio) *
1676 sizeof(struct wpa_ssid *));
1677 break;
1678 }
1679 }
1680
1681 nlist[prio] = ssid;
1682 config->num_prio++;
1683 config->pssid = nlist;
1684
1685 return 0;
1686 }
1687
1688
1689 /**
1690 * wpa_config_update_prio_list - Update network priority list
1691 * @config: Configuration data from wpa_config_read()
1692 * Returns: 0 on success, -1 on failure
1693 *
1694 * This function is called to update the priority list of networks in the
1695 * configuration when a network is being added or removed. This is also called
1696 * if a priority for a network is changed.
1697 */
1698 int wpa_config_update_prio_list(struct wpa_config *config)
1699 {
1700 struct wpa_ssid *ssid;
1701 int ret = 0;
1702
1703 os_free(config->pssid);
1704 config->pssid = NULL;
1705 config->num_prio = 0;
1706
1707 ssid = config->ssid;
1708 while (ssid) {
1709 ssid->pnext = NULL;
1710 if (wpa_config_add_prio_network(config, ssid) < 0)
1711 ret = -1;
1712 ssid = ssid->next;
1713 }
1714
1715 return ret;
1716 }
1717
1718
1719 #ifdef IEEE8021X_EAPOL
1720 static void eap_peer_config_free(struct eap_peer_config *eap)
1721 {
1722 os_free(eap->eap_methods);
1723 os_free(eap->identity);
1724 os_free(eap->anonymous_identity);
1725 os_free(eap->password);
1726 os_free(eap->ca_cert);
1727 os_free(eap->ca_path);
1728 os_free(eap->client_cert);
1729 os_free(eap->private_key);
1730 os_free(eap->private_key_passwd);
1731 os_free(eap->dh_file);
1732 os_free(eap->subject_match);
1733 os_free(eap->altsubject_match);
1734 os_free(eap->ca_cert2);
1735 os_free(eap->ca_path2);
1736 os_free(eap->client_cert2);
1737 os_free(eap->private_key2);
1738 os_free(eap->private_key2_passwd);
1739 os_free(eap->dh_file2);
1740 os_free(eap->subject_match2);
1741 os_free(eap->altsubject_match2);
1742 os_free(eap->phase1);
1743 os_free(eap->phase2);
1744 os_free(eap->pcsc);
1745 os_free(eap->pin);
1746 os_free(eap->engine_id);
1747 os_free(eap->key_id);
1748 os_free(eap->cert_id);
1749 os_free(eap->ca_cert_id);
1750 os_free(eap->key2_id);
1751 os_free(eap->cert2_id);
1752 os_free(eap->ca_cert2_id);
1753 os_free(eap->pin2);
1754 os_free(eap->engine2_id);
1755 os_free(eap->otp);
1756 os_free(eap->pending_req_otp);
1757 os_free(eap->pac_file);
1758 os_free(eap->new_password);
1759 }
1760 #endif /* IEEE8021X_EAPOL */
1761
1762
1763 /**
1764 * wpa_config_free_ssid - Free network/ssid configuration data
1765 * @ssid: Configuration data for the network
1766 *
1767 * This function frees all resources allocated for the network configuration
1768 * data.
1769 */
1770 void wpa_config_free_ssid(struct wpa_ssid *ssid)
1771 {
1772 os_free(ssid->ssid);
1773 os_free(ssid->passphrase);
1774 #ifdef IEEE8021X_EAPOL
1775 eap_peer_config_free(&ssid->eap);
1776 #endif /* IEEE8021X_EAPOL */
1777 os_free(ssid->id_str);
1778 os_free(ssid->scan_freq);
1779 os_free(ssid->freq_list);
1780 os_free(ssid->bgscan);
1781 os_free(ssid->p2p_client_list);
1782 #ifdef CONFIG_HT_OVERRIDES
1783 os_free(ssid->ht_mcs);
1784 #endif /* CONFIG_HT_OVERRIDES */
1785 os_free(ssid);
1786 }
1787
1788
1789 void wpa_config_free_cred(struct wpa_cred *cred)
1790 {
1791 os_free(cred->realm);
1792 os_free(cred->username);
1793 os_free(cred->password);
1794 os_free(cred->ca_cert);
1795 os_free(cred->client_cert);
1796 os_free(cred->private_key);
1797 os_free(cred->private_key_passwd);
1798 os_free(cred->imsi);
1799 os_free(cred->milenage);
1800 os_free(cred->domain);
1801 os_free(cred->eap_method);
1802 os_free(cred->phase1);
1803 os_free(cred->phase2);
1804 os_free(cred);
1805 }
1806
1807
1808 /**
1809 * wpa_config_free - Free configuration data
1810 * @config: Configuration data from wpa_config_read()
1811 *
1812 * This function frees all resources allocated for the configuration data by
1813 * wpa_config_read().
1814 */
1815 void wpa_config_free(struct wpa_config *config)
1816 {
1817 #ifndef CONFIG_NO_CONFIG_BLOBS
1818 struct wpa_config_blob *blob, *prevblob;
1819 #endif /* CONFIG_NO_CONFIG_BLOBS */
1820 struct wpa_ssid *ssid, *prev = NULL;
1821 struct wpa_cred *cred, *cprev;
1822
1823 ssid = config->ssid;
1824 while (ssid) {
1825 prev = ssid;
1826 ssid = ssid->next;
1827 wpa_config_free_ssid(prev);
1828 }
1829
1830 cred = config->cred;
1831 while (cred) {
1832 cprev = cred;
1833 cred = cred->next;
1834 wpa_config_free_cred(cprev);
1835 }
1836
1837 #ifndef CONFIG_NO_CONFIG_BLOBS
1838 blob = config->blobs;
1839 prevblob = NULL;
1840 while (blob) {
1841 prevblob = blob;
1842 blob = blob->next;
1843 wpa_config_free_blob(prevblob);
1844 }
1845 #endif /* CONFIG_NO_CONFIG_BLOBS */
1846
1847 wpabuf_free(config->wps_vendor_ext_m1);
1848 os_free(config->ctrl_interface);
1849 os_free(config->ctrl_interface_group);
1850 os_free(config->opensc_engine_path);
1851 os_free(config->pkcs11_engine_path);
1852 os_free(config->pkcs11_module_path);
1853 os_free(config->pcsc_reader);
1854 os_free(config->pcsc_pin);
1855 os_free(config->driver_param);
1856 os_free(config->device_name);
1857 os_free(config->manufacturer);
1858 os_free(config->model_name);
1859 os_free(config->model_number);
1860 os_free(config->serial_number);
1861 os_free(config->config_methods);
1862 os_free(config->p2p_ssid_postfix);
1863 os_free(config->pssid);
1864 os_free(config->p2p_pref_chan);
1865 os_free(config->autoscan);
1866 wpabuf_free(config->wps_nfc_dh_pubkey);
1867 wpabuf_free(config->wps_nfc_dh_privkey);
1868 wpabuf_free(config->wps_nfc_dev_pw);
1869 os_free(config);
1870 }
1871
1872
1873 /**
1874 * wpa_config_foreach_network - Iterate over each configured network
1875 * @config: Configuration data from wpa_config_read()
1876 * @func: Callback function to process each network
1877 * @arg: Opaque argument to pass to callback function
1878 *
1879 * Iterate over the set of configured networks calling the specified
1880 * function for each item. We guard against callbacks removing the
1881 * supplied network.
1882 */
1883 void wpa_config_foreach_network(struct wpa_config *config,
1884 void (*func)(void *, struct wpa_ssid *),
1885 void *arg)
1886 {
1887 struct wpa_ssid *ssid, *next;
1888
1889 ssid = config->ssid;
1890 while (ssid) {
1891 next = ssid->next;
1892 func(arg, ssid);
1893 ssid = next;
1894 }
1895 }
1896
1897
1898 /**
1899 * wpa_config_get_network - Get configured network based on id
1900 * @config: Configuration data from wpa_config_read()
1901 * @id: Unique network id to search for
1902 * Returns: Network configuration or %NULL if not found
1903 */
1904 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
1905 {
1906 struct wpa_ssid *ssid;
1907
1908 ssid = config->ssid;
1909 while (ssid) {
1910 if (id == ssid->id)
1911 break;
1912 ssid = ssid->next;
1913 }
1914
1915 return ssid;
1916 }
1917
1918
1919 /**
1920 * wpa_config_add_network - Add a new network with empty configuration
1921 * @config: Configuration data from wpa_config_read()
1922 * Returns: The new network configuration or %NULL if operation failed
1923 */
1924 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
1925 {
1926 int id;
1927 struct wpa_ssid *ssid, *last = NULL;
1928
1929 id = -1;
1930 ssid = config->ssid;
1931 while (ssid) {
1932 if (ssid->id > id)
1933 id = ssid->id;
1934 last = ssid;
1935 ssid = ssid->next;
1936 }
1937 id++;
1938
1939 ssid = os_zalloc(sizeof(*ssid));
1940 if (ssid == NULL)
1941 return NULL;
1942 ssid->id = id;
1943 if (last)
1944 last->next = ssid;
1945 else
1946 config->ssid = ssid;
1947
1948 wpa_config_update_prio_list(config);
1949
1950 return ssid;
1951 }
1952
1953
1954 /**
1955 * wpa_config_remove_network - Remove a configured network based on id
1956 * @config: Configuration data from wpa_config_read()
1957 * @id: Unique network id to search for
1958 * Returns: 0 on success, or -1 if the network was not found
1959 */
1960 int wpa_config_remove_network(struct wpa_config *config, int id)
1961 {
1962 struct wpa_ssid *ssid, *prev = NULL;
1963
1964 ssid = config->ssid;
1965 while (ssid) {
1966 if (id == ssid->id)
1967 break;
1968 prev = ssid;
1969 ssid = ssid->next;
1970 }
1971
1972 if (ssid == NULL)
1973 return -1;
1974
1975 if (prev)
1976 prev->next = ssid->next;
1977 else
1978 config->ssid = ssid->next;
1979
1980 wpa_config_update_prio_list(config);
1981 wpa_config_free_ssid(ssid);
1982 return 0;
1983 }
1984
1985
1986 /**
1987 * wpa_config_set_network_defaults - Set network default values
1988 * @ssid: Pointer to network configuration data
1989 */
1990 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
1991 {
1992 ssid->proto = DEFAULT_PROTO;
1993 ssid->pairwise_cipher = DEFAULT_PAIRWISE;
1994 ssid->group_cipher = DEFAULT_GROUP;
1995 ssid->key_mgmt = DEFAULT_KEY_MGMT;
1996 ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
1997 #ifdef IEEE8021X_EAPOL
1998 ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
1999 ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2000 ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2001 #endif /* IEEE8021X_EAPOL */
2002 #ifdef CONFIG_HT_OVERRIDES
2003 ssid->disable_ht = DEFAULT_DISABLE_HT;
2004 ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2005 ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2006 ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2007 ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2008 #endif /* CONFIG_HT_OVERRIDES */
2009 }
2010
2011
2012 /**
2013 * wpa_config_set - Set a variable in network configuration
2014 * @ssid: Pointer to network configuration data
2015 * @var: Variable name, e.g., "ssid"
2016 * @value: Variable value
2017 * @line: Line number in configuration file or 0 if not used
2018 * Returns: 0 on success, -1 on failure
2019 *
2020 * This function can be used to set network configuration variables based on
2021 * both the configuration file and management interface input. The value
2022 * parameter must be in the same format as the text-based configuration file is
2023 * using. For example, strings are using double quotation marks.
2024 */
2025 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2026 int line)
2027 {
2028 size_t i;
2029 int ret = 0;
2030
2031 if (ssid == NULL || var == NULL || value == NULL)
2032 return -1;
2033
2034 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2035 const struct parse_data *field = &ssid_fields[i];
2036 if (os_strcmp(var, field->name) != 0)
2037 continue;
2038
2039 if (field->parser(field, ssid, line, value)) {
2040 if (line) {
2041 wpa_printf(MSG_ERROR, "Line %d: failed to "
2042 "parse %s '%s'.", line, var, value);
2043 }
2044 ret = -1;
2045 }
2046 break;
2047 }
2048 if (i == NUM_SSID_FIELDS) {
2049 if (line) {
2050 wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2051 "'%s'.", line, var);
2052 }
2053 ret = -1;
2054 }
2055
2056 return ret;
2057 }
2058
2059
2060 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2061 const char *value)
2062 {
2063 size_t len;
2064 char *buf;
2065 int ret;
2066
2067 len = os_strlen(value);
2068 buf = os_malloc(len + 3);
2069 if (buf == NULL)
2070 return -1;
2071 buf[0] = '"';
2072 os_memcpy(buf + 1, value, len);
2073 buf[len + 1] = '"';
2074 buf[len + 2] = '\0';
2075 ret = wpa_config_set(ssid, var, buf, 0);
2076 os_free(buf);
2077 return ret;
2078 }
2079
2080
2081 /**
2082 * wpa_config_get_all - Get all options from network configuration
2083 * @ssid: Pointer to network configuration data
2084 * @get_keys: Determines if keys/passwords will be included in returned list
2085 * (if they may be exported)
2086 * Returns: %NULL terminated list of all set keys and their values in the form
2087 * of [key1, val1, key2, val2, ... , NULL]
2088 *
2089 * This function can be used to get list of all configured network properties.
2090 * The caller is responsible for freeing the returned list and all its
2091 * elements.
2092 */
2093 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2094 {
2095 const struct parse_data *field;
2096 char *key, *value;
2097 size_t i;
2098 char **props;
2099 int fields_num;
2100
2101 get_keys = get_keys && ssid->export_keys;
2102
2103 props = os_zalloc(sizeof(char *) * ((2 * NUM_SSID_FIELDS) + 1));
2104 if (!props)
2105 return NULL;
2106
2107 fields_num = 0;
2108 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2109 field = &ssid_fields[i];
2110 if (field->key_data && !get_keys)
2111 continue;
2112 value = field->writer(field, ssid);
2113 if (value == NULL)
2114 continue;
2115 if (os_strlen(value) == 0) {
2116 os_free(value);
2117 continue;
2118 }
2119
2120 key = os_strdup(field->name);
2121 if (key == NULL) {
2122 os_free(value);
2123 goto err;
2124 }
2125
2126 props[fields_num * 2] = key;
2127 props[fields_num * 2 + 1] = value;
2128
2129 fields_num++;
2130 }
2131
2132 return props;
2133
2134 err:
2135 value = *props;
2136 while (value)
2137 os_free(value++);
2138 os_free(props);
2139 return NULL;
2140 }
2141
2142
2143 #ifndef NO_CONFIG_WRITE
2144 /**
2145 * wpa_config_get - Get a variable in network configuration
2146 * @ssid: Pointer to network configuration data
2147 * @var: Variable name, e.g., "ssid"
2148 * Returns: Value of the variable or %NULL on failure
2149 *
2150 * This function can be used to get network configuration variables. The
2151 * returned value is a copy of the configuration variable in text format, i.e,.
2152 * the same format that the text-based configuration file and wpa_config_set()
2153 * are using for the value. The caller is responsible for freeing the returned
2154 * value.
2155 */
2156 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2157 {
2158 size_t i;
2159
2160 if (ssid == NULL || var == NULL)
2161 return NULL;
2162
2163 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2164 const struct parse_data *field = &ssid_fields[i];
2165 if (os_strcmp(var, field->name) == 0)
2166 return field->writer(field, ssid);
2167 }
2168
2169 return NULL;
2170 }
2171
2172
2173 /**
2174 * wpa_config_get_no_key - Get a variable in network configuration (no keys)
2175 * @ssid: Pointer to network configuration data
2176 * @var: Variable name, e.g., "ssid"
2177 * Returns: Value of the variable or %NULL on failure
2178 *
2179 * This function can be used to get network configuration variable like
2180 * wpa_config_get(). The only difference is that this functions does not expose
2181 * key/password material from the configuration. In case a key/password field
2182 * is requested, the returned value is an empty string or %NULL if the variable
2183 * is not set or "*" if the variable is set (regardless of its value). The
2184 * returned value is a copy of the configuration variable in text format, i.e,.
2185 * the same format that the text-based configuration file and wpa_config_set()
2186 * are using for the value. The caller is responsible for freeing the returned
2187 * value.
2188 */
2189 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
2190 {
2191 size_t i;
2192
2193 if (ssid == NULL || var == NULL)
2194 return NULL;
2195
2196 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2197 const struct parse_data *field = &ssid_fields[i];
2198 if (os_strcmp(var, field->name) == 0) {
2199 char *res = field->writer(field, ssid);
2200 if (field->key_data) {
2201 if (res && res[0]) {
2202 wpa_printf(MSG_DEBUG, "Do not allow "
2203 "key_data field to be "
2204 "exposed");
2205 os_free(res);
2206 return os_strdup("*");
2207 }
2208
2209 os_free(res);
2210 return NULL;
2211 }
2212 return res;
2213 }
2214 }
2215
2216 return NULL;
2217 }
2218 #endif /* NO_CONFIG_WRITE */
2219
2220
2221 /**
2222 * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
2223 * @ssid: Pointer to network configuration data
2224 *
2225 * This function must be called to update WPA PSK when either SSID or the
2226 * passphrase has changed for the network configuration.
2227 */
2228 void wpa_config_update_psk(struct wpa_ssid *ssid)
2229 {
2230 #ifndef CONFIG_NO_PBKDF2
2231 pbkdf2_sha1(ssid->passphrase,
2232 (char *) ssid->ssid, ssid->ssid_len, 4096,
2233 ssid->psk, PMK_LEN);
2234 wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
2235 ssid->psk, PMK_LEN);
2236 ssid->psk_set = 1;
2237 #endif /* CONFIG_NO_PBKDF2 */
2238 }
2239
2240
2241 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
2242 const char *value, int line)
2243 {
2244 char *val;
2245 size_t len;
2246
2247 if (os_strcmp(var, "priority") == 0) {
2248 cred->priority = atoi(value);
2249 return 0;
2250 }
2251
2252 if (os_strcmp(var, "pcsc") == 0) {
2253 cred->pcsc = atoi(value);
2254 return 0;
2255 }
2256
2257 if (os_strcmp(var, "eap") == 0) {
2258 struct eap_method_type method;
2259 method.method = eap_peer_get_type(value, &method.vendor);
2260 if (method.vendor == EAP_VENDOR_IETF &&
2261 method.method == EAP_TYPE_NONE) {
2262 wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
2263 "for a credential", line, value);
2264 return -1;
2265 }
2266 os_free(cred->eap_method);
2267 cred->eap_method = os_malloc(sizeof(*cred->eap_method));
2268 if (cred->eap_method == NULL)
2269 return -1;
2270 os_memcpy(cred->eap_method, &method, sizeof(method));
2271 return 0;
2272 }
2273
2274 val = wpa_config_parse_string(value, &len);
2275 if (val == NULL) {
2276 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
2277 "value '%s'.", line, var, value);
2278 return -1;
2279 }
2280
2281 if (os_strcmp(var, "realm") == 0) {
2282 os_free(cred->realm);
2283 cred->realm = val;
2284 return 0;
2285 }
2286
2287 if (os_strcmp(var, "username") == 0) {
2288 os_free(cred->username);
2289 cred->username = val;
2290 return 0;
2291 }
2292
2293 if (os_strcmp(var, "password") == 0) {
2294 os_free(cred->password);
2295 cred->password = val;
2296 return 0;
2297 }
2298
2299 if (os_strcmp(var, "ca_cert") == 0) {
2300 os_free(cred->ca_cert);
2301 cred->ca_cert = val;
2302 return 0;
2303 }
2304
2305 if (os_strcmp(var, "client_cert") == 0) {
2306 os_free(cred->client_cert);
2307 cred->client_cert = val;
2308 return 0;
2309 }
2310
2311 if (os_strcmp(var, "private_key") == 0) {
2312 os_free(cred->private_key);
2313 cred->private_key = val;
2314 return 0;
2315 }
2316
2317 if (os_strcmp(var, "private_key_passwd") == 0) {
2318 os_free(cred->private_key_passwd);
2319 cred->private_key_passwd = val;
2320 return 0;
2321 }
2322
2323 if (os_strcmp(var, "imsi") == 0) {
2324 os_free(cred->imsi);
2325 cred->imsi = val;
2326 return 0;
2327 }
2328
2329 if (os_strcmp(var, "milenage") == 0) {
2330 os_free(cred->milenage);
2331 cred->milenage = val;
2332 return 0;
2333 }
2334
2335 if (os_strcmp(var, "domain") == 0) {
2336 os_free(cred->domain);
2337 cred->domain = val;
2338 return 0;
2339 }
2340
2341 if (os_strcmp(var, "phase1") == 0) {
2342 os_free(cred->phase1);
2343 cred->phase1 = val;
2344 return 0;
2345 }
2346
2347 if (os_strcmp(var, "phase2") == 0) {
2348 os_free(cred->phase2);
2349 cred->phase2 = val;
2350 return 0;
2351 }
2352
2353 if (os_strcmp(var, "roaming_consortium") == 0) {
2354 if (len < 3 || len > sizeof(cred->roaming_consortium)) {
2355 wpa_printf(MSG_ERROR, "Line %d: invalid "
2356 "roaming_consortium length %d (3..15 "
2357 "expected)", line, (int) len);
2358 os_free(val);
2359 return -1;
2360 }
2361 os_memcpy(cred->roaming_consortium, val, len);
2362 cred->roaming_consortium_len = len;
2363 os_free(val);
2364 return 0;
2365 }
2366
2367 if (line) {
2368 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
2369 line, var);
2370 }
2371
2372 os_free(val);
2373
2374 return -1;
2375 }
2376
2377
2378 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
2379 {
2380 struct wpa_cred *cred;
2381
2382 cred = config->cred;
2383 while (cred) {
2384 if (id == cred->id)
2385 break;
2386 cred = cred->next;
2387 }
2388
2389 return cred;
2390 }
2391
2392
2393 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
2394 {
2395 int id;
2396 struct wpa_cred *cred, *last = NULL;
2397
2398 id = -1;
2399 cred = config->cred;
2400 while (cred) {
2401 if (cred->id > id)
2402 id = cred->id;
2403 last = cred;
2404 cred = cred->next;
2405 }
2406 id++;
2407
2408 cred = os_zalloc(sizeof(*cred));
2409 if (cred == NULL)
2410 return NULL;
2411 cred->id = id;
2412 if (last)
2413 last->next = cred;
2414 else
2415 config->cred = cred;
2416
2417 return cred;
2418 }
2419
2420
2421 int wpa_config_remove_cred(struct wpa_config *config, int id)
2422 {
2423 struct wpa_cred *cred, *prev = NULL;
2424
2425 cred = config->cred;
2426 while (cred) {
2427 if (id == cred->id)
2428 break;
2429 prev = cred;
2430 cred = cred->next;
2431 }
2432
2433 if (cred == NULL)
2434 return -1;
2435
2436 if (prev)
2437 prev->next = cred->next;
2438 else
2439 config->cred = cred->next;
2440
2441 wpa_config_free_cred(cred);
2442 return 0;
2443 }
2444
2445
2446 #ifndef CONFIG_NO_CONFIG_BLOBS
2447 /**
2448 * wpa_config_get_blob - Get a named configuration blob
2449 * @config: Configuration data from wpa_config_read()
2450 * @name: Name of the blob
2451 * Returns: Pointer to blob data or %NULL if not found
2452 */
2453 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
2454 const char *name)
2455 {
2456 struct wpa_config_blob *blob = config->blobs;
2457
2458 while (blob) {
2459 if (os_strcmp(blob->name, name) == 0)
2460 return blob;
2461 blob = blob->next;
2462 }
2463 return NULL;
2464 }
2465
2466
2467 /**
2468 * wpa_config_set_blob - Set or add a named configuration blob
2469 * @config: Configuration data from wpa_config_read()
2470 * @blob: New value for the blob
2471 *
2472 * Adds a new configuration blob or replaces the current value of an existing
2473 * blob.
2474 */
2475 void wpa_config_set_blob(struct wpa_config *config,
2476 struct wpa_config_blob *blob)
2477 {
2478 wpa_config_remove_blob(config, blob->name);
2479 blob->next = config->blobs;
2480 config->blobs = blob;
2481 }
2482
2483
2484 /**
2485 * wpa_config_free_blob - Free blob data
2486 * @blob: Pointer to blob to be freed
2487 */
2488 void wpa_config_free_blob(struct wpa_config_blob *blob)
2489 {
2490 if (blob) {
2491 os_free(blob->name);
2492 os_free(blob->data);
2493 os_free(blob);
2494 }
2495 }
2496
2497
2498 /**
2499 * wpa_config_remove_blob - Remove a named configuration blob
2500 * @config: Configuration data from wpa_config_read()
2501 * @name: Name of the blob to remove
2502 * Returns: 0 if blob was removed or -1 if blob was not found
2503 */
2504 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
2505 {
2506 struct wpa_config_blob *pos = config->blobs, *prev = NULL;
2507
2508 while (pos) {
2509 if (os_strcmp(pos->name, name) == 0) {
2510 if (prev)
2511 prev->next = pos->next;
2512 else
2513 config->blobs = pos->next;
2514 wpa_config_free_blob(pos);
2515 return 0;
2516 }
2517 prev = pos;
2518 pos = pos->next;
2519 }
2520
2521 return -1;
2522 }
2523 #endif /* CONFIG_NO_CONFIG_BLOBS */
2524
2525
2526 /**
2527 * wpa_config_alloc_empty - Allocate an empty configuration
2528 * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
2529 * socket
2530 * @driver_param: Driver parameters
2531 * Returns: Pointer to allocated configuration data or %NULL on failure
2532 */
2533 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
2534 const char *driver_param)
2535 {
2536 struct wpa_config *config;
2537
2538 config = os_zalloc(sizeof(*config));
2539 if (config == NULL)
2540 return NULL;
2541 config->eapol_version = DEFAULT_EAPOL_VERSION;
2542 config->ap_scan = DEFAULT_AP_SCAN;
2543 config->fast_reauth = DEFAULT_FAST_REAUTH;
2544 config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
2545 config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
2546 config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
2547 config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
2548 config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
2549 config->max_num_sta = DEFAULT_MAX_NUM_STA;
2550 config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
2551
2552 if (ctrl_interface)
2553 config->ctrl_interface = os_strdup(ctrl_interface);
2554 if (driver_param)
2555 config->driver_param = os_strdup(driver_param);
2556
2557 return config;
2558 }
2559
2560
2561 #ifndef CONFIG_NO_STDOUT_DEBUG
2562 /**
2563 * wpa_config_debug_dump_networks - Debug dump of configured networks
2564 * @config: Configuration data from wpa_config_read()
2565 */
2566 void wpa_config_debug_dump_networks(struct wpa_config *config)
2567 {
2568 int prio;
2569 struct wpa_ssid *ssid;
2570
2571 for (prio = 0; prio < config->num_prio; prio++) {
2572 ssid = config->pssid[prio];
2573 wpa_printf(MSG_DEBUG, "Priority group %d",
2574 ssid->priority);
2575 while (ssid) {
2576 wpa_printf(MSG_DEBUG, " id=%d ssid='%s'",
2577 ssid->id,
2578 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
2579 ssid = ssid->pnext;
2580 }
2581 }
2582 }
2583 #endif /* CONFIG_NO_STDOUT_DEBUG */
2584
2585
2586 struct global_parse_data {
2587 char *name;
2588 int (*parser)(const struct global_parse_data *data,
2589 struct wpa_config *config, int line, const char *value);
2590 void *param1, *param2, *param3;
2591 unsigned int changed_flag;
2592 };
2593
2594
2595 static int wpa_global_config_parse_int(const struct global_parse_data *data,
2596 struct wpa_config *config, int line,
2597 const char *pos)
2598 {
2599 int *dst;
2600 dst = (int *) (((u8 *) config) + (long) data->param1);
2601 *dst = atoi(pos);
2602 wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
2603
2604 if (data->param2 && *dst < (long) data->param2) {
2605 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
2606 "min_value=%ld)", line, data->name, *dst,
2607 (long) data->param2);
2608 *dst = (long) data->param2;
2609 return -1;
2610 }
2611
2612 if (data->param3 && *dst > (long) data->param3) {
2613 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
2614 "max_value=%ld)", line, data->name, *dst,
2615 (long) data->param3);
2616 *dst = (long) data->param3;
2617 return -1;
2618 }
2619
2620 return 0;
2621 }
2622
2623
2624 static int wpa_global_config_parse_str(const struct global_parse_data *data,
2625 struct wpa_config *config, int line,
2626 const char *pos)
2627 {
2628 size_t len;
2629 char **dst, *tmp;
2630
2631 len = os_strlen(pos);
2632 if (data->param2 && len < (size_t) data->param2) {
2633 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
2634 "min_len=%ld)", line, data->name,
2635 (unsigned long) len, (long) data->param2);
2636 return -1;
2637 }
2638
2639 if (data->param3 && len > (size_t) data->param3) {
2640 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
2641 "max_len=%ld)", line, data->name,
2642 (unsigned long) len, (long) data->param3);
2643 return -1;
2644 }
2645
2646 tmp = os_strdup(pos);
2647 if (tmp == NULL)
2648 return -1;
2649
2650 dst = (char **) (((u8 *) config) + (long) data->param1);
2651 os_free(*dst);
2652 *dst = tmp;
2653 wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
2654
2655 return 0;
2656 }
2657
2658
2659 static int wpa_global_config_parse_bin(const struct global_parse_data *data,
2660 struct wpa_config *config, int line,
2661 const char *pos)
2662 {
2663 size_t len;
2664 struct wpabuf **dst, *tmp;
2665
2666 len = os_strlen(pos);
2667 if (len & 0x01)
2668 return -1;
2669
2670 tmp = wpabuf_alloc(len / 2);
2671 if (tmp == NULL)
2672 return -1;
2673
2674 if (hexstr2bin(pos, wpabuf_put(tmp, len / 2), len / 2)) {
2675 wpabuf_free(tmp);
2676 return -1;
2677 }
2678
2679 dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
2680 wpabuf_free(*dst);
2681 *dst = tmp;
2682 wpa_printf(MSG_DEBUG, "%s", data->name);
2683
2684 return 0;
2685 }
2686
2687
2688 static int wpa_config_process_country(const struct global_parse_data *data,
2689 struct wpa_config *config, int line,
2690 const char *pos)
2691 {
2692 if (!pos[0] || !pos[1]) {
2693 wpa_printf(MSG_DEBUG, "Invalid country set");
2694 return -1;
2695 }
2696 config->country[0] = pos[0];
2697 config->country[1] = pos[1];
2698 wpa_printf(MSG_DEBUG, "country='%c%c'",
2699 config->country[0], config->country[1]);
2700 return 0;
2701 }
2702
2703
2704 static int wpa_config_process_load_dynamic_eap(
2705 const struct global_parse_data *data, struct wpa_config *config,
2706 int line, const char *so)
2707 {
2708 int ret;
2709 wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
2710 ret = eap_peer_method_load(so);
2711 if (ret == -2) {
2712 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
2713 "reloading.");
2714 } else if (ret) {
2715 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
2716 "method '%s'.", line, so);
2717 return -1;
2718 }
2719
2720 return 0;
2721 }
2722
2723
2724 #ifdef CONFIG_WPS
2725
2726 static int wpa_config_process_uuid(const struct global_parse_data *data,
2727 struct wpa_config *config, int line,
2728 const char *pos)
2729 {
2730 char buf[40];
2731 if (uuid_str2bin(pos, config->uuid)) {
2732 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
2733 return -1;
2734 }
2735 uuid_bin2str(config->uuid, buf, sizeof(buf));
2736 wpa_printf(MSG_DEBUG, "uuid=%s", buf);
2737 return 0;
2738 }
2739
2740
2741 static int wpa_config_process_device_type(
2742 const struct global_parse_data *data,
2743 struct wpa_config *config, int line, const char *pos)
2744 {
2745 return wps_dev_type_str2bin(pos, config->device_type);
2746 }
2747
2748
2749 static int wpa_config_process_os_version(const struct global_parse_data *data,
2750 struct wpa_config *config, int line,
2751 const char *pos)
2752 {
2753 if (hexstr2bin(pos, config->os_version, 4)) {
2754 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
2755 return -1;
2756 }
2757 wpa_printf(MSG_DEBUG, "os_version=%08x",
2758 WPA_GET_BE32(config->os_version));
2759 return 0;
2760 }
2761
2762
2763 static int wpa_config_process_wps_vendor_ext_m1(
2764 const struct global_parse_data *data,
2765 struct wpa_config *config, int line, const char *pos)
2766 {
2767 struct wpabuf *tmp;
2768 int len = os_strlen(pos) / 2;
2769 u8 *p;
2770
2771 if (!len) {
2772 wpa_printf(MSG_ERROR, "Line %d: "
2773 "invalid wps_vendor_ext_m1", line);
2774 return -1;
2775 }
2776
2777 tmp = wpabuf_alloc(len);
2778 if (tmp) {
2779 p = wpabuf_put(tmp, len);
2780
2781 if (hexstr2bin(pos, p, len)) {
2782 wpa_printf(MSG_ERROR, "Line %d: "
2783 "invalid wps_vendor_ext_m1", line);
2784 wpabuf_free(tmp);
2785 return -1;
2786 }
2787
2788 wpabuf_free(config->wps_vendor_ext_m1);
2789 config->wps_vendor_ext_m1 = tmp;
2790 } else {
2791 wpa_printf(MSG_ERROR, "Can not allocate "
2792 "memory for wps_vendor_ext_m1");
2793 return -1;
2794 }
2795
2796 return 0;
2797 }
2798
2799 #endif /* CONFIG_WPS */
2800
2801 #ifdef CONFIG_P2P
2802 static int wpa_config_process_sec_device_type(
2803 const struct global_parse_data *data,
2804 struct wpa_config *config, int line, const char *pos)
2805 {
2806 int idx;
2807
2808 if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
2809 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
2810 "items", line);
2811 return -1;
2812 }
2813
2814 idx = config->num_sec_device_types;
2815
2816 if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
2817 return -1;
2818
2819 config->num_sec_device_types++;
2820 return 0;
2821 }
2822
2823
2824 static int wpa_config_process_p2p_pref_chan(
2825 const struct global_parse_data *data,
2826 struct wpa_config *config, int line, const char *pos)
2827 {
2828 struct p2p_channel *pref = NULL, *n;
2829 unsigned int num = 0;
2830 const char *pos2;
2831 u8 op_class, chan;
2832
2833 /* format: class:chan,class:chan,... */
2834
2835 while (*pos) {
2836 op_class = atoi(pos);
2837 pos2 = os_strchr(pos, ':');
2838 if (pos2 == NULL)
2839 goto fail;
2840 pos2++;
2841 chan = atoi(pos2);
2842
2843 n = os_realloc(pref, (num + 1) * sizeof(struct p2p_channel));
2844 if (n == NULL)
2845 goto fail;
2846 pref = n;
2847 pref[num].op_class = op_class;
2848 pref[num].chan = chan;
2849 num++;
2850
2851 pos = os_strchr(pos2, ',');
2852 if (pos == NULL)
2853 break;
2854 pos++;
2855 }
2856
2857 os_free(config->p2p_pref_chan);
2858 config->p2p_pref_chan = pref;
2859 config->num_p2p_pref_chan = num;
2860 wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
2861 (u8 *) config->p2p_pref_chan,
2862 config->num_p2p_pref_chan * sizeof(struct p2p_channel));
2863
2864 return 0;
2865
2866 fail:
2867 os_free(pref);
2868 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
2869 return -1;
2870 }
2871 #endif /* CONFIG_P2P */
2872
2873
2874 static int wpa_config_process_hessid(
2875 const struct global_parse_data *data,
2876 struct wpa_config *config, int line, const char *pos)
2877 {
2878 if (hwaddr_aton2(pos, config->hessid) < 0) {
2879 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
2880 line, pos);
2881 return -1;
2882 }
2883
2884 return 0;
2885 }
2886
2887
2888 #ifdef OFFSET
2889 #undef OFFSET
2890 #endif /* OFFSET */
2891 /* OFFSET: Get offset of a variable within the wpa_config structure */
2892 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
2893
2894 #define FUNC(f) #f, wpa_config_process_ ## f, OFFSET(f), NULL, NULL
2895 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL
2896 #define _INT(f) #f, wpa_global_config_parse_int, OFFSET(f)
2897 #define INT(f) _INT(f), NULL, NULL
2898 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
2899 #define _STR(f) #f, wpa_global_config_parse_str, OFFSET(f)
2900 #define STR(f) _STR(f), NULL, NULL
2901 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
2902 #define BIN(f) #f, wpa_global_config_parse_bin, OFFSET(f), NULL, NULL
2903
2904 static const struct global_parse_data global_fields[] = {
2905 #ifdef CONFIG_CTRL_IFACE
2906 { STR(ctrl_interface), 0 },
2907 { STR(ctrl_interface_group), 0 } /* deprecated */,
2908 #endif /* CONFIG_CTRL_IFACE */
2909 { INT_RANGE(eapol_version, 1, 2), 0 },
2910 { INT(ap_scan), 0 },
2911 { INT(disable_scan_offload), 0 },
2912 { INT(fast_reauth), 0 },
2913 { STR(opensc_engine_path), 0 },
2914 { STR(pkcs11_engine_path), 0 },
2915 { STR(pkcs11_module_path), 0 },
2916 { STR(pcsc_reader), 0 },
2917 { STR(pcsc_pin), 0 },
2918 { STR(driver_param), 0 },
2919 { INT(dot11RSNAConfigPMKLifetime), 0 },
2920 { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
2921 { INT(dot11RSNAConfigSATimeout), 0 },
2922 #ifndef CONFIG_NO_CONFIG_WRITE
2923 { INT(update_config), 0 },
2924 #endif /* CONFIG_NO_CONFIG_WRITE */
2925 { FUNC_NO_VAR(load_dynamic_eap), 0 },
2926 #ifdef CONFIG_WPS
2927 { FUNC(uuid), CFG_CHANGED_UUID },
2928 { STR_RANGE(device_name, 0, 32), CFG_CHANGED_DEVICE_NAME },
2929 { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
2930 { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
2931 { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
2932 { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
2933 { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
2934 { FUNC(os_version), CFG_CHANGED_OS_VERSION },
2935 { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
2936 { INT_RANGE(wps_cred_processing, 0, 2), 0 },
2937 { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
2938 #endif /* CONFIG_WPS */
2939 #ifdef CONFIG_P2P
2940 { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
2941 { INT(p2p_listen_reg_class), 0 },
2942 { INT(p2p_listen_channel), 0 },
2943 { INT(p2p_oper_reg_class), 0 },
2944 { INT(p2p_oper_channel), 0 },
2945 { INT_RANGE(p2p_go_intent, 0, 15), 0 },
2946 { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
2947 { INT_RANGE(persistent_reconnect, 0, 1), 0 },
2948 { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
2949 { INT(p2p_group_idle), 0 },
2950 { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
2951 #endif /* CONFIG_P2P */
2952 { FUNC(country), CFG_CHANGED_COUNTRY },
2953 { INT(bss_max_count), 0 },
2954 { INT(bss_expiration_age), 0 },
2955 { INT(bss_expiration_scan_count), 0 },
2956 { INT_RANGE(filter_ssids, 0, 1), 0 },
2957 { INT_RANGE(filter_rssi, -100, 0), 0 },
2958 { INT(max_num_sta), 0 },
2959 { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
2960 #ifdef CONFIG_HS20
2961 { INT_RANGE(hs20, 0, 1), 0 },
2962 #endif /* CONFIG_HS20 */
2963 { INT_RANGE(interworking, 0, 1), 0 },
2964 { FUNC(hessid), 0 },
2965 { INT_RANGE(access_network_type, 0, 15), 0 },
2966 { INT_RANGE(pbc_in_m1, 0, 1), 0 },
2967 { STR(autoscan), 0 },
2968 { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff), 0 },
2969 { BIN(wps_nfc_dh_pubkey), 0 },
2970 { BIN(wps_nfc_dh_privkey), 0 },
2971 { BIN(wps_nfc_dev_pw), 0 }
2972 };
2973
2974 #undef FUNC
2975 #undef _INT
2976 #undef INT
2977 #undef INT_RANGE
2978 #undef _STR
2979 #undef STR
2980 #undef STR_RANGE
2981 #undef BIN
2982 #define NUM_GLOBAL_FIELDS (sizeof(global_fields) / sizeof(global_fields[0]))
2983
2984
2985 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
2986 {
2987 size_t i;
2988 int ret = 0;
2989
2990 for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
2991 const struct global_parse_data *field = &global_fields[i];
2992 size_t flen = os_strlen(field->name);
2993 if (os_strncmp(pos, field->name, flen) != 0 ||
2994 pos[flen] != '=')
2995 continue;
2996
2997 if (field->parser(field, config, line, pos + flen + 1)) {
2998 wpa_printf(MSG_ERROR, "Line %d: failed to "
2999 "parse '%s'.", line, pos);
3000 ret = -1;
3001 }
3002 config->changed_parameters |= field->changed_flag;
3003 break;
3004 }
3005 if (i == NUM_GLOBAL_FIELDS) {
3006 if (line < 0)
3007 return -1;
3008 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
3009 line, pos);
3010 ret = -1;
3011 }
3012
3013 return ret;
3014 }
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