]> git.ipfire.org Git - thirdparty/hostap.git/blob - wpa_supplicant/config.c
projects / thirdparty / hostap.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
EXT PW: Add support for psk parameter from external storage
[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 #ifdef CONFIG_EXT_PASSWORD
328 if (os_strncmp(value, "ext:", 4) == 0) {
329 os_free(ssid->passphrase);
330 ssid->passphrase = NULL;
331 ssid->psk_set = 0;
332 os_free(ssid->ext_psk);
333 ssid->ext_psk = os_strdup(value + 4);
334 if (ssid->ext_psk == NULL)
335 return -1;
336 wpa_printf(MSG_DEBUG, "PSK: External password '%s'",
337 ssid->ext_psk);
338 return 0;
339 }
340 #endif /* CONFIG_EXT_PASSWORD */
341
342 if (*value == '"') {
343 #ifndef CONFIG_NO_PBKDF2
344 const char *pos;
345 size_t len;
346
347 value++;
348 pos = os_strrchr(value, '"');
349 if (pos)
350 len = pos - value;
351 else
352 len = os_strlen(value);
353 if (len < 8 || len > 63) {
354 wpa_printf(MSG_ERROR, "Line %d: Invalid passphrase "
355 "length %lu (expected: 8..63) '%s'.",
356 line, (unsigned long) len, value);
357 return -1;
358 }
359 wpa_hexdump_ascii_key(MSG_MSGDUMP, "PSK (ASCII passphrase)",
360 (u8 *) value, len);
361 if (ssid->passphrase && os_strlen(ssid->passphrase) == len &&
362 os_memcmp(ssid->passphrase, value, len) == 0)
363 return 0;
364 ssid->psk_set = 0;
365 os_free(ssid->passphrase);
366 ssid->passphrase = os_malloc(len + 1);
367 if (ssid->passphrase == NULL)
368 return -1;
369 os_memcpy(ssid->passphrase, value, len);
370 ssid->passphrase[len] = '\0';
371 return 0;
372 #else /* CONFIG_NO_PBKDF2 */
373 wpa_printf(MSG_ERROR, "Line %d: ASCII passphrase not "
374 "supported.", line);
375 return -1;
376 #endif /* CONFIG_NO_PBKDF2 */
377 }
378
379 if (hexstr2bin(value, ssid->psk, PMK_LEN) ||
380 value[PMK_LEN * 2] != '\0') {
381 wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.",
382 line, value);
383 return -1;
384 }
385
386 os_free(ssid->passphrase);
387 ssid->passphrase = NULL;
388
389 ssid->psk_set = 1;
390 wpa_hexdump_key(MSG_MSGDUMP, "PSK", ssid->psk, PMK_LEN);
391 return 0;
392 }
393
394
395 #ifndef NO_CONFIG_WRITE
396 static char * wpa_config_write_psk(const struct parse_data *data,
397 struct wpa_ssid *ssid)
398 {
399 #ifdef CONFIG_EXT_PASSWORD
400 if (ssid->ext_psk) {
401 size_t len = 4 + os_strlen(ssid->ext_psk) + 1;
402 char *buf = os_malloc(len);
403 if (buf == NULL)
404 return NULL;
405 os_snprintf(buf, len, "ext:%s", ssid->ext_psk);
406 return buf;
407 }
408 #endif /* CONFIG_EXT_PASSWORD */
409
410 if (ssid->passphrase)
411 return wpa_config_write_string_ascii(
412 (const u8 *) ssid->passphrase,
413 os_strlen(ssid->passphrase));
414
415 if (ssid->psk_set)
416 return wpa_config_write_string_hex(ssid->psk, PMK_LEN);
417
418 return NULL;
419 }
420 #endif /* NO_CONFIG_WRITE */
421
422
423 static int wpa_config_parse_proto(const struct parse_data *data,
424 struct wpa_ssid *ssid, int line,
425 const char *value)
426 {
427 int val = 0, last, errors = 0;
428 char *start, *end, *buf;
429
430 buf = os_strdup(value);
431 if (buf == NULL)
432 return -1;
433 start = buf;
434
435 while (*start != '\0') {
436 while (*start == ' ' || *start == '\t')
437 start++;
438 if (*start == '\0')
439 break;
440 end = start;
441 while (*end != ' ' && *end != '\t' && *end != '\0')
442 end++;
443 last = *end == '\0';
444 *end = '\0';
445 if (os_strcmp(start, "WPA") == 0)
446 val |= WPA_PROTO_WPA;
447 else if (os_strcmp(start, "RSN") == 0 ||
448 os_strcmp(start, "WPA2") == 0)
449 val |= WPA_PROTO_RSN;
450 else {
451 wpa_printf(MSG_ERROR, "Line %d: invalid proto '%s'",
452 line, start);
453 errors++;
454 }
455
456 if (last)
457 break;
458 start = end + 1;
459 }
460 os_free(buf);
461
462 if (val == 0) {
463 wpa_printf(MSG_ERROR,
464 "Line %d: no proto values configured.", line);
465 errors++;
466 }
467
468 wpa_printf(MSG_MSGDUMP, "proto: 0x%x", val);
469 ssid->proto = val;
470 return errors ? -1 : 0;
471 }
472
473
474 #ifndef NO_CONFIG_WRITE
475 static char * wpa_config_write_proto(const struct parse_data *data,
476 struct wpa_ssid *ssid)
477 {
478 int first = 1, ret;
479 char *buf, *pos, *end;
480
481 pos = buf = os_zalloc(10);
482 if (buf == NULL)
483 return NULL;
484 end = buf + 10;
485
486 if (ssid->proto & WPA_PROTO_WPA) {
487 ret = os_snprintf(pos, end - pos, "%sWPA", first ? "" : " ");
488 if (ret < 0 || ret >= end - pos)
489 return buf;
490 pos += ret;
491 first = 0;
492 }
493
494 if (ssid->proto & WPA_PROTO_RSN) {
495 ret = os_snprintf(pos, end - pos, "%sRSN", first ? "" : " ");
496 if (ret < 0 || ret >= end - pos)
497 return buf;
498 pos += ret;
499 first = 0;
500 }
501
502 return buf;
503 }
504 #endif /* NO_CONFIG_WRITE */
505
506
507 static int wpa_config_parse_key_mgmt(const struct parse_data *data,
508 struct wpa_ssid *ssid, int line,
509 const char *value)
510 {
511 int val = 0, last, errors = 0;
512 char *start, *end, *buf;
513
514 buf = os_strdup(value);
515 if (buf == NULL)
516 return -1;
517 start = buf;
518
519 while (*start != '\0') {
520 while (*start == ' ' || *start == '\t')
521 start++;
522 if (*start == '\0')
523 break;
524 end = start;
525 while (*end != ' ' && *end != '\t' && *end != '\0')
526 end++;
527 last = *end == '\0';
528 *end = '\0';
529 if (os_strcmp(start, "WPA-PSK") == 0)
530 val |= WPA_KEY_MGMT_PSK;
531 else if (os_strcmp(start, "WPA-EAP") == 0)
532 val |= WPA_KEY_MGMT_IEEE8021X;
533 else if (os_strcmp(start, "IEEE8021X") == 0)
534 val |= WPA_KEY_MGMT_IEEE8021X_NO_WPA;
535 else if (os_strcmp(start, "NONE") == 0)
536 val |= WPA_KEY_MGMT_NONE;
537 else if (os_strcmp(start, "WPA-NONE") == 0)
538 val |= WPA_KEY_MGMT_WPA_NONE;
539 #ifdef CONFIG_IEEE80211R
540 else if (os_strcmp(start, "FT-PSK") == 0)
541 val |= WPA_KEY_MGMT_FT_PSK;
542 else if (os_strcmp(start, "FT-EAP") == 0)
543 val |= WPA_KEY_MGMT_FT_IEEE8021X;
544 #endif /* CONFIG_IEEE80211R */
545 #ifdef CONFIG_IEEE80211W
546 else if (os_strcmp(start, "WPA-PSK-SHA256") == 0)
547 val |= WPA_KEY_MGMT_PSK_SHA256;
548 else if (os_strcmp(start, "WPA-EAP-SHA256") == 0)
549 val |= WPA_KEY_MGMT_IEEE8021X_SHA256;
550 #endif /* CONFIG_IEEE80211W */
551 #ifdef CONFIG_WPS
552 else if (os_strcmp(start, "WPS") == 0)
553 val |= WPA_KEY_MGMT_WPS;
554 #endif /* CONFIG_WPS */
555 else {
556 wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
557 line, start);
558 errors++;
559 }
560
561 if (last)
562 break;
563 start = end + 1;
564 }
565 os_free(buf);
566
567 if (val == 0) {
568 wpa_printf(MSG_ERROR,
569 "Line %d: no key_mgmt values configured.", line);
570 errors++;
571 }
572
573 wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val);
574 ssid->key_mgmt = val;
575 return errors ? -1 : 0;
576 }
577
578
579 #ifndef NO_CONFIG_WRITE
580 static char * wpa_config_write_key_mgmt(const struct parse_data *data,
581 struct wpa_ssid *ssid)
582 {
583 char *buf, *pos, *end;
584 int ret;
585
586 pos = buf = os_zalloc(50);
587 if (buf == NULL)
588 return NULL;
589 end = buf + 50;
590
591 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
592 ret = os_snprintf(pos, end - pos, "%sWPA-PSK",
593 pos == buf ? "" : " ");
594 if (ret < 0 || ret >= end - pos) {
595 end[-1] = '\0';
596 return buf;
597 }
598 pos += ret;
599 }
600
601 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
602 ret = os_snprintf(pos, end - pos, "%sWPA-EAP",
603 pos == buf ? "" : " ");
604 if (ret < 0 || ret >= end - pos) {
605 end[-1] = '\0';
606 return buf;
607 }
608 pos += ret;
609 }
610
611 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
612 ret = os_snprintf(pos, end - pos, "%sIEEE8021X",
613 pos == buf ? "" : " ");
614 if (ret < 0 || ret >= end - pos) {
615 end[-1] = '\0';
616 return buf;
617 }
618 pos += ret;
619 }
620
621 if (ssid->key_mgmt & WPA_KEY_MGMT_NONE) {
622 ret = os_snprintf(pos, end - pos, "%sNONE",
623 pos == buf ? "" : " ");
624 if (ret < 0 || ret >= end - pos) {
625 end[-1] = '\0';
626 return buf;
627 }
628 pos += ret;
629 }
630
631 if (ssid->key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
632 ret = os_snprintf(pos, end - pos, "%sWPA-NONE",
633 pos == buf ? "" : " ");
634 if (ret < 0 || ret >= end - pos) {
635 end[-1] = '\0';
636 return buf;
637 }
638 pos += ret;
639 }
640
641 #ifdef CONFIG_IEEE80211R
642 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_PSK)
643 pos += os_snprintf(pos, end - pos, "%sFT-PSK",
644 pos == buf ? "" : " ");
645
646 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X)
647 pos += os_snprintf(pos, end - pos, "%sFT-EAP",
648 pos == buf ? "" : " ");
649 #endif /* CONFIG_IEEE80211R */
650
651 #ifdef CONFIG_IEEE80211W
652 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK_SHA256)
653 pos += os_snprintf(pos, end - pos, "%sWPA-PSK-SHA256",
654 pos == buf ? "" : " ");
655
656 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256)
657 pos += os_snprintf(pos, end - pos, "%sWPA-EAP-SHA256",
658 pos == buf ? "" : " ");
659 #endif /* CONFIG_IEEE80211W */
660
661 #ifdef CONFIG_WPS
662 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
663 pos += os_snprintf(pos, end - pos, "%sWPS",
664 pos == buf ? "" : " ");
665 #endif /* CONFIG_WPS */
666
667 return buf;
668 }
669 #endif /* NO_CONFIG_WRITE */
670
671
672 static int wpa_config_parse_cipher(int line, const char *value)
673 {
674 int val = 0, last;
675 char *start, *end, *buf;
676
677 buf = os_strdup(value);
678 if (buf == NULL)
679 return -1;
680 start = buf;
681
682 while (*start != '\0') {
683 while (*start == ' ' || *start == '\t')
684 start++;
685 if (*start == '\0')
686 break;
687 end = start;
688 while (*end != ' ' && *end != '\t' && *end != '\0')
689 end++;
690 last = *end == '\0';
691 *end = '\0';
692 if (os_strcmp(start, "CCMP") == 0)
693 val |= WPA_CIPHER_CCMP;
694 else if (os_strcmp(start, "TKIP") == 0)
695 val |= WPA_CIPHER_TKIP;
696 else if (os_strcmp(start, "WEP104") == 0)
697 val |= WPA_CIPHER_WEP104;
698 else if (os_strcmp(start, "WEP40") == 0)
699 val |= WPA_CIPHER_WEP40;
700 else if (os_strcmp(start, "NONE") == 0)
701 val |= WPA_CIPHER_NONE;
702 else {
703 wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
704 line, start);
705 os_free(buf);
706 return -1;
707 }
708
709 if (last)
710 break;
711 start = end + 1;
712 }
713 os_free(buf);
714
715 if (val == 0) {
716 wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
717 line);
718 return -1;
719 }
720 return val;
721 }
722
723
724 #ifndef NO_CONFIG_WRITE
725 static char * wpa_config_write_cipher(int cipher)
726 {
727 char *buf, *pos, *end;
728 int ret;
729
730 pos = buf = os_zalloc(50);
731 if (buf == NULL)
732 return NULL;
733 end = buf + 50;
734
735 if (cipher & WPA_CIPHER_CCMP) {
736 ret = os_snprintf(pos, end - pos, "%sCCMP",
737 pos == buf ? "" : " ");
738 if (ret < 0 || ret >= end - pos) {
739 end[-1] = '\0';
740 return buf;
741 }
742 pos += ret;
743 }
744
745 if (cipher & WPA_CIPHER_TKIP) {
746 ret = os_snprintf(pos, end - pos, "%sTKIP",
747 pos == buf ? "" : " ");
748 if (ret < 0 || ret >= end - pos) {
749 end[-1] = '\0';
750 return buf;
751 }
752 pos += ret;
753 }
754
755 if (cipher & WPA_CIPHER_WEP104) {
756 ret = os_snprintf(pos, end - pos, "%sWEP104",
757 pos == buf ? "" : " ");
758 if (ret < 0 || ret >= end - pos) {
759 end[-1] = '\0';
760 return buf;
761 }
762 pos += ret;
763 }
764
765 if (cipher & WPA_CIPHER_WEP40) {
766 ret = os_snprintf(pos, end - pos, "%sWEP40",
767 pos == buf ? "" : " ");
768 if (ret < 0 || ret >= end - pos) {
769 end[-1] = '\0';
770 return buf;
771 }
772 pos += ret;
773 }
774
775 if (cipher & WPA_CIPHER_NONE) {
776 ret = os_snprintf(pos, end - pos, "%sNONE",
777 pos == buf ? "" : " ");
778 if (ret < 0 || ret >= end - pos) {
779 end[-1] = '\0';
780 return buf;
781 }
782 pos += ret;
783 }
784
785 return buf;
786 }
787 #endif /* NO_CONFIG_WRITE */
788
789
790 static int wpa_config_parse_pairwise(const struct parse_data *data,
791 struct wpa_ssid *ssid, int line,
792 const char *value)
793 {
794 int val;
795 val = wpa_config_parse_cipher(line, value);
796 if (val == -1)
797 return -1;
798 if (val & ~(WPA_CIPHER_CCMP | WPA_CIPHER_TKIP | WPA_CIPHER_NONE)) {
799 wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
800 "(0x%x).", line, val);
801 return -1;
802 }
803
804 wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
805 ssid->pairwise_cipher = val;
806 return 0;
807 }
808
809
810 #ifndef NO_CONFIG_WRITE
811 static char * wpa_config_write_pairwise(const struct parse_data *data,
812 struct wpa_ssid *ssid)
813 {
814 return wpa_config_write_cipher(ssid->pairwise_cipher);
815 }
816 #endif /* NO_CONFIG_WRITE */
817
818
819 static int wpa_config_parse_group(const struct parse_data *data,
820 struct wpa_ssid *ssid, int line,
821 const char *value)
822 {
823 int val;
824 val = wpa_config_parse_cipher(line, value);
825 if (val == -1)
826 return -1;
827 if (val & ~(WPA_CIPHER_CCMP | WPA_CIPHER_TKIP | WPA_CIPHER_WEP104 |
828 WPA_CIPHER_WEP40)) {
829 wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
830 "(0x%x).", line, val);
831 return -1;
832 }
833
834 wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
835 ssid->group_cipher = val;
836 return 0;
837 }
838
839
840 #ifndef NO_CONFIG_WRITE
841 static char * wpa_config_write_group(const struct parse_data *data,
842 struct wpa_ssid *ssid)
843 {
844 return wpa_config_write_cipher(ssid->group_cipher);
845 }
846 #endif /* NO_CONFIG_WRITE */
847
848
849 static int wpa_config_parse_auth_alg(const struct parse_data *data,
850 struct wpa_ssid *ssid, int line,
851 const char *value)
852 {
853 int val = 0, last, errors = 0;
854 char *start, *end, *buf;
855
856 buf = os_strdup(value);
857 if (buf == NULL)
858 return -1;
859 start = buf;
860
861 while (*start != '\0') {
862 while (*start == ' ' || *start == '\t')
863 start++;
864 if (*start == '\0')
865 break;
866 end = start;
867 while (*end != ' ' && *end != '\t' && *end != '\0')
868 end++;
869 last = *end == '\0';
870 *end = '\0';
871 if (os_strcmp(start, "OPEN") == 0)
872 val |= WPA_AUTH_ALG_OPEN;
873 else if (os_strcmp(start, "SHARED") == 0)
874 val |= WPA_AUTH_ALG_SHARED;
875 else if (os_strcmp(start, "LEAP") == 0)
876 val |= WPA_AUTH_ALG_LEAP;
877 else {
878 wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
879 line, start);
880 errors++;
881 }
882
883 if (last)
884 break;
885 start = end + 1;
886 }
887 os_free(buf);
888
889 if (val == 0) {
890 wpa_printf(MSG_ERROR,
891 "Line %d: no auth_alg values configured.", line);
892 errors++;
893 }
894
895 wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
896 ssid->auth_alg = val;
897 return errors ? -1 : 0;
898 }
899
900
901 #ifndef NO_CONFIG_WRITE
902 static char * wpa_config_write_auth_alg(const struct parse_data *data,
903 struct wpa_ssid *ssid)
904 {
905 char *buf, *pos, *end;
906 int ret;
907
908 pos = buf = os_zalloc(30);
909 if (buf == NULL)
910 return NULL;
911 end = buf + 30;
912
913 if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) {
914 ret = os_snprintf(pos, end - pos, "%sOPEN",
915 pos == buf ? "" : " ");
916 if (ret < 0 || ret >= end - pos) {
917 end[-1] = '\0';
918 return buf;
919 }
920 pos += ret;
921 }
922
923 if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) {
924 ret = os_snprintf(pos, end - pos, "%sSHARED",
925 pos == buf ? "" : " ");
926 if (ret < 0 || ret >= end - pos) {
927 end[-1] = '\0';
928 return buf;
929 }
930 pos += ret;
931 }
932
933 if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) {
934 ret = os_snprintf(pos, end - pos, "%sLEAP",
935 pos == buf ? "" : " ");
936 if (ret < 0 || ret >= end - pos) {
937 end[-1] = '\0';
938 return buf;
939 }
940 pos += ret;
941 }
942
943 return buf;
944 }
945 #endif /* NO_CONFIG_WRITE */
946
947
948 static int * wpa_config_parse_freqs(const struct parse_data *data,
949 struct wpa_ssid *ssid, int line,
950 const char *value)
951 {
952 int *freqs;
953 size_t used, len;
954 const char *pos;
955
956 used = 0;
957 len = 10;
958 freqs = os_zalloc((len + 1) * sizeof(int));
959 if (freqs == NULL)
960 return NULL;
961
962 pos = value;
963 while (pos) {
964 while (*pos == ' ')
965 pos++;
966 if (used == len) {
967 int *n;
968 size_t i;
969 n = os_realloc(freqs, (len * 2 + 1) * sizeof(int));
970 if (n == NULL) {
971 os_free(freqs);
972 return NULL;
973 }
974 for (i = len; i <= len * 2; i++)
975 n[i] = 0;
976 freqs = n;
977 len *= 2;
978 }
979
980 freqs[used] = atoi(pos);
981 if (freqs[used] == 0)
982 break;
983 used++;
984 pos = os_strchr(pos + 1, ' ');
985 }
986
987 return freqs;
988 }
989
990
991 static int wpa_config_parse_scan_freq(const struct parse_data *data,
992 struct wpa_ssid *ssid, int line,
993 const char *value)
994 {
995 int *freqs;
996
997 freqs = wpa_config_parse_freqs(data, ssid, line, value);
998 if (freqs == NULL)
999 return -1;
1000 os_free(ssid->scan_freq);
1001 ssid->scan_freq = freqs;
1002
1003 return 0;
1004 }
1005
1006
1007 static int wpa_config_parse_freq_list(const struct parse_data *data,
1008 struct wpa_ssid *ssid, int line,
1009 const char *value)
1010 {
1011 int *freqs;
1012
1013 freqs = wpa_config_parse_freqs(data, ssid, line, value);
1014 if (freqs == NULL)
1015 return -1;
1016 os_free(ssid->freq_list);
1017 ssid->freq_list = freqs;
1018
1019 return 0;
1020 }
1021
1022
1023 #ifndef NO_CONFIG_WRITE
1024 static char * wpa_config_write_freqs(const struct parse_data *data,
1025 const int *freqs)
1026 {
1027 char *buf, *pos, *end;
1028 int i, ret;
1029 size_t count;
1030
1031 if (freqs == NULL)
1032 return NULL;
1033
1034 count = 0;
1035 for (i = 0; freqs[i]; i++)
1036 count++;
1037
1038 pos = buf = os_zalloc(10 * count + 1);
1039 if (buf == NULL)
1040 return NULL;
1041 end = buf + 10 * count + 1;
1042
1043 for (i = 0; freqs[i]; i++) {
1044 ret = os_snprintf(pos, end - pos, "%s%u",
1045 i == 0 ? "" : " ", freqs[i]);
1046 if (ret < 0 || ret >= end - pos) {
1047 end[-1] = '\0';
1048 return buf;
1049 }
1050 pos += ret;
1051 }
1052
1053 return buf;
1054 }
1055
1056
1057 static char * wpa_config_write_scan_freq(const struct parse_data *data,
1058 struct wpa_ssid *ssid)
1059 {
1060 return wpa_config_write_freqs(data, ssid->scan_freq);
1061 }
1062
1063
1064 static char * wpa_config_write_freq_list(const struct parse_data *data,
1065 struct wpa_ssid *ssid)
1066 {
1067 return wpa_config_write_freqs(data, ssid->freq_list);
1068 }
1069 #endif /* NO_CONFIG_WRITE */
1070
1071
1072 #ifdef IEEE8021X_EAPOL
1073 static int wpa_config_parse_eap(const struct parse_data *data,
1074 struct wpa_ssid *ssid, int line,
1075 const char *value)
1076 {
1077 int last, errors = 0;
1078 char *start, *end, *buf;
1079 struct eap_method_type *methods = NULL, *tmp;
1080 size_t num_methods = 0;
1081
1082 buf = os_strdup(value);
1083 if (buf == NULL)
1084 return -1;
1085 start = buf;
1086
1087 while (*start != '\0') {
1088 while (*start == ' ' || *start == '\t')
1089 start++;
1090 if (*start == '\0')
1091 break;
1092 end = start;
1093 while (*end != ' ' && *end != '\t' && *end != '\0')
1094 end++;
1095 last = *end == '\0';
1096 *end = '\0';
1097 tmp = methods;
1098 methods = os_realloc(methods,
1099 (num_methods + 1) * sizeof(*methods));
1100 if (methods == NULL) {
1101 os_free(tmp);
1102 os_free(buf);
1103 return -1;
1104 }
1105 methods[num_methods].method = eap_peer_get_type(
1106 start, &methods[num_methods].vendor);
1107 if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1108 methods[num_methods].method == EAP_TYPE_NONE) {
1109 wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
1110 "'%s'", line, start);
1111 wpa_printf(MSG_ERROR, "You may need to add support for"
1112 " this EAP method during wpa_supplicant\n"
1113 "build time configuration.\n"
1114 "See README for more information.");
1115 errors++;
1116 } else if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1117 methods[num_methods].method == EAP_TYPE_LEAP)
1118 ssid->leap++;
1119 else
1120 ssid->non_leap++;
1121 num_methods++;
1122 if (last)
1123 break;
1124 start = end + 1;
1125 }
1126 os_free(buf);
1127
1128 tmp = methods;
1129 methods = os_realloc(methods, (num_methods + 1) * sizeof(*methods));
1130 if (methods == NULL) {
1131 os_free(tmp);
1132 return -1;
1133 }
1134 methods[num_methods].vendor = EAP_VENDOR_IETF;
1135 methods[num_methods].method = EAP_TYPE_NONE;
1136 num_methods++;
1137
1138 wpa_hexdump(MSG_MSGDUMP, "eap methods",
1139 (u8 *) methods, num_methods * sizeof(*methods));
1140 os_free(ssid->eap.eap_methods);
1141 ssid->eap.eap_methods = methods;
1142 return errors ? -1 : 0;
1143 }
1144
1145
1146 static char * wpa_config_write_eap(const struct parse_data *data,
1147 struct wpa_ssid *ssid)
1148 {
1149 int i, ret;
1150 char *buf, *pos, *end;
1151 const struct eap_method_type *eap_methods = ssid->eap.eap_methods;
1152 const char *name;
1153
1154 if (eap_methods == NULL)
1155 return NULL;
1156
1157 pos = buf = os_zalloc(100);
1158 if (buf == NULL)
1159 return NULL;
1160 end = buf + 100;
1161
1162 for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF ||
1163 eap_methods[i].method != EAP_TYPE_NONE; i++) {
1164 name = eap_get_name(eap_methods[i].vendor,
1165 eap_methods[i].method);
1166 if (name) {
1167 ret = os_snprintf(pos, end - pos, "%s%s",
1168 pos == buf ? "" : " ", name);
1169 if (ret < 0 || ret >= end - pos)
1170 break;
1171 pos += ret;
1172 }
1173 }
1174
1175 end[-1] = '\0';
1176
1177 return buf;
1178 }
1179
1180
1181 static int wpa_config_parse_password(const struct parse_data *data,
1182 struct wpa_ssid *ssid, int line,
1183 const char *value)
1184 {
1185 u8 *hash;
1186
1187 if (os_strcmp(value, "NULL") == 0) {
1188 wpa_printf(MSG_DEBUG, "Unset configuration string 'password'");
1189 os_free(ssid->eap.password);
1190 ssid->eap.password = NULL;
1191 ssid->eap.password_len = 0;
1192 return 0;
1193 }
1194
1195 if (os_strncmp(value, "hash:", 5) != 0) {
1196 char *tmp;
1197 size_t res_len;
1198
1199 tmp = wpa_config_parse_string(value, &res_len);
1200 if (tmp == NULL) {
1201 wpa_printf(MSG_ERROR, "Line %d: failed to parse "
1202 "password.", line);
1203 return -1;
1204 }
1205 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
1206 (u8 *) tmp, res_len);
1207
1208 os_free(ssid->eap.password);
1209 ssid->eap.password = (u8 *) tmp;
1210 ssid->eap.password_len = res_len;
1211 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1212
1213 return 0;
1214 }
1215
1216
1217 /* NtPasswordHash: hash:<32 hex digits> */
1218 if (os_strlen(value + 5) != 2 * 16) {
1219 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length "
1220 "(expected 32 hex digits)", line);
1221 return -1;
1222 }
1223
1224 hash = os_malloc(16);
1225 if (hash == NULL)
1226 return -1;
1227
1228 if (hexstr2bin(value + 5, hash, 16)) {
1229 os_free(hash);
1230 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line);
1231 return -1;
1232 }
1233
1234 wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16);
1235
1236 os_free(ssid->eap.password);
1237 ssid->eap.password = hash;
1238 ssid->eap.password_len = 16;
1239 ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1240
1241 return 0;
1242 }
1243
1244
1245 static char * wpa_config_write_password(const struct parse_data *data,
1246 struct wpa_ssid *ssid)
1247 {
1248 char *buf;
1249
1250 if (ssid->eap.password == NULL)
1251 return NULL;
1252
1253 if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1254 return wpa_config_write_string(
1255 ssid->eap.password, ssid->eap.password_len);
1256 }
1257
1258 buf = os_malloc(5 + 32 + 1);
1259 if (buf == NULL)
1260 return NULL;
1261
1262 os_memcpy(buf, "hash:", 5);
1263 wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16);
1264
1265 return buf;
1266 }
1267 #endif /* IEEE8021X_EAPOL */
1268
1269
1270 static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
1271 const char *value, int idx)
1272 {
1273 char *buf, title[20];
1274 int res;
1275
1276 buf = wpa_config_parse_string(value, len);
1277 if (buf == NULL) {
1278 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
1279 line, idx, value);
1280 return -1;
1281 }
1282 if (*len > MAX_WEP_KEY_LEN) {
1283 wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
1284 line, idx, value);
1285 os_free(buf);
1286 return -1;
1287 }
1288 if (*len && *len != 5 && *len != 13 && *len != 16) {
1289 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key length %u - "
1290 "this network block will be ignored",
1291 line, (unsigned int) *len);
1292 }
1293 os_memcpy(key, buf, *len);
1294 os_free(buf);
1295 res = os_snprintf(title, sizeof(title), "wep_key%d", idx);
1296 if (res >= 0 && (size_t) res < sizeof(title))
1297 wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
1298 return 0;
1299 }
1300
1301
1302 static int wpa_config_parse_wep_key0(const struct parse_data *data,
1303 struct wpa_ssid *ssid, int line,
1304 const char *value)
1305 {
1306 return wpa_config_parse_wep_key(ssid->wep_key[0],
1307 &ssid->wep_key_len[0], line,
1308 value, 0);
1309 }
1310
1311
1312 static int wpa_config_parse_wep_key1(const struct parse_data *data,
1313 struct wpa_ssid *ssid, int line,
1314 const char *value)
1315 {
1316 return wpa_config_parse_wep_key(ssid->wep_key[1],
1317 &ssid->wep_key_len[1], line,
1318 value, 1);
1319 }
1320
1321
1322 static int wpa_config_parse_wep_key2(const struct parse_data *data,
1323 struct wpa_ssid *ssid, int line,
1324 const char *value)
1325 {
1326 return wpa_config_parse_wep_key(ssid->wep_key[2],
1327 &ssid->wep_key_len[2], line,
1328 value, 2);
1329 }
1330
1331
1332 static int wpa_config_parse_wep_key3(const struct parse_data *data,
1333 struct wpa_ssid *ssid, int line,
1334 const char *value)
1335 {
1336 return wpa_config_parse_wep_key(ssid->wep_key[3],
1337 &ssid->wep_key_len[3], line,
1338 value, 3);
1339 }
1340
1341
1342 #ifndef NO_CONFIG_WRITE
1343 static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx)
1344 {
1345 if (ssid->wep_key_len[idx] == 0)
1346 return NULL;
1347 return wpa_config_write_string(ssid->wep_key[idx],
1348 ssid->wep_key_len[idx]);
1349 }
1350
1351
1352 static char * wpa_config_write_wep_key0(const struct parse_data *data,
1353 struct wpa_ssid *ssid)
1354 {
1355 return wpa_config_write_wep_key(ssid, 0);
1356 }
1357
1358
1359 static char * wpa_config_write_wep_key1(const struct parse_data *data,
1360 struct wpa_ssid *ssid)
1361 {
1362 return wpa_config_write_wep_key(ssid, 1);
1363 }
1364
1365
1366 static char * wpa_config_write_wep_key2(const struct parse_data *data,
1367 struct wpa_ssid *ssid)
1368 {
1369 return wpa_config_write_wep_key(ssid, 2);
1370 }
1371
1372
1373 static char * wpa_config_write_wep_key3(const struct parse_data *data,
1374 struct wpa_ssid *ssid)
1375 {
1376 return wpa_config_write_wep_key(ssid, 3);
1377 }
1378 #endif /* NO_CONFIG_WRITE */
1379
1380
1381 #ifdef CONFIG_P2P
1382
1383 static int wpa_config_parse_p2p_client_list(const struct parse_data *data,
1384 struct wpa_ssid *ssid, int line,
1385 const char *value)
1386 {
1387 const char *pos;
1388 u8 *buf, *n, addr[ETH_ALEN];
1389 size_t count;
1390
1391 buf = NULL;
1392 count = 0;
1393
1394 pos = value;
1395 while (pos && *pos) {
1396 while (*pos == ' ')
1397 pos++;
1398
1399 if (hwaddr_aton(pos, addr)) {
1400 wpa_printf(MSG_ERROR, "Line %d: Invalid "
1401 "p2p_client_list address '%s'.",
1402 line, value);
1403 /* continue anyway */
1404 } else {
1405 n = os_realloc(buf, (count + 1) * ETH_ALEN);
1406 if (n == NULL) {
1407 os_free(buf);
1408 return -1;
1409 }
1410 buf = n;
1411 os_memcpy(buf + count * ETH_ALEN, addr, ETH_ALEN);
1412 count++;
1413 wpa_hexdump(MSG_MSGDUMP, "p2p_client_list",
1414 addr, ETH_ALEN);
1415 }
1416
1417 pos = os_strchr(pos, ' ');
1418 }
1419
1420 os_free(ssid->p2p_client_list);
1421 ssid->p2p_client_list = buf;
1422 ssid->num_p2p_clients = count;
1423
1424 return 0;
1425 }
1426
1427
1428 #ifndef NO_CONFIG_WRITE
1429 static char * wpa_config_write_p2p_client_list(const struct parse_data *data,
1430 struct wpa_ssid *ssid)
1431 {
1432 char *value, *end, *pos;
1433 int res;
1434 size_t i;
1435
1436 if (ssid->p2p_client_list == NULL || ssid->num_p2p_clients == 0)
1437 return NULL;
1438
1439 value = os_malloc(20 * ssid->num_p2p_clients);
1440 if (value == NULL)
1441 return NULL;
1442 pos = value;
1443 end = value + 20 * ssid->num_p2p_clients;
1444
1445 for (i = 0; i < ssid->num_p2p_clients; i++) {
1446 res = os_snprintf(pos, end - pos, MACSTR " ",
1447 MAC2STR(ssid->p2p_client_list +
1448 i * ETH_ALEN));
1449 if (res < 0 || res >= end - pos) {
1450 os_free(value);
1451 return NULL;
1452 }
1453 pos += res;
1454 }
1455
1456 if (pos > value)
1457 pos[-1] = '\0';
1458
1459 return value;
1460 }
1461 #endif /* NO_CONFIG_WRITE */
1462
1463 #endif /* CONFIG_P2P */
1464
1465 /* Helper macros for network block parser */
1466
1467 #ifdef OFFSET
1468 #undef OFFSET
1469 #endif /* OFFSET */
1470 /* OFFSET: Get offset of a variable within the wpa_ssid structure */
1471 #define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
1472
1473 /* STR: Define a string variable for an ASCII string; f = field name */
1474 #ifdef NO_CONFIG_WRITE
1475 #define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
1476 #define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
1477 #else /* NO_CONFIG_WRITE */
1478 #define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
1479 #define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
1480 #endif /* NO_CONFIG_WRITE */
1481 #define STR(f) _STR(f), NULL, NULL, NULL, 0
1482 #define STRe(f) _STRe(f), NULL, NULL, NULL, 0
1483 #define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
1484 #define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
1485
1486 /* STR_LEN: Define a string variable with a separate variable for storing the
1487 * data length. Unlike STR(), this can be used to store arbitrary binary data
1488 * (i.e., even nul termination character). */
1489 #define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
1490 #define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
1491 #define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
1492 #define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
1493 #define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
1494
1495 /* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
1496 * explicitly specified. */
1497 #define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
1498 #define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
1499 #define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
1500
1501 #ifdef NO_CONFIG_WRITE
1502 #define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
1503 #define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
1504 #else /* NO_CONFIG_WRITE */
1505 #define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1506 OFFSET(f), (void *) 0
1507 #define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1508 OFFSET(eap.f), (void *) 0
1509 #endif /* NO_CONFIG_WRITE */
1510
1511 /* INT: Define an integer variable */
1512 #define INT(f) _INT(f), NULL, NULL, 0
1513 #define INTe(f) _INTe(f), NULL, NULL, 0
1514
1515 /* INT_RANGE: Define an integer variable with allowed value range */
1516 #define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
1517
1518 /* FUNC: Define a configuration variable that uses a custom function for
1519 * parsing and writing the value. */
1520 #ifdef NO_CONFIG_WRITE
1521 #define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
1522 #else /* NO_CONFIG_WRITE */
1523 #define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
1524 NULL, NULL, NULL, NULL
1525 #endif /* NO_CONFIG_WRITE */
1526 #define FUNC(f) _FUNC(f), 0
1527 #define FUNC_KEY(f) _FUNC(f), 1
1528
1529 /*
1530 * Table of network configuration variables. This table is used to parse each
1531 * network configuration variable, e.g., each line in wpa_supplicant.conf file
1532 * that is inside a network block.
1533 *
1534 * This table is generated using the helper macros defined above and with
1535 * generous help from the C pre-processor. The field name is stored as a string
1536 * into .name and for STR and INT types, the offset of the target buffer within
1537 * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
1538 * offset to the field containing the length of the configuration variable.
1539 * .param3 and .param4 can be used to mark the allowed range (length for STR
1540 * and value for INT).
1541 *
1542 * For each configuration line in wpa_supplicant.conf, the parser goes through
1543 * this table and select the entry that matches with the field name. The parser
1544 * function (.parser) is then called to parse the actual value of the field.
1545 *
1546 * This kind of mechanism makes it easy to add new configuration parameters,
1547 * since only one line needs to be added into this table and into the
1548 * struct wpa_ssid definition if the new variable is either a string or
1549 * integer. More complex types will need to use their own parser and writer
1550 * functions.
1551 */
1552 static const struct parse_data ssid_fields[] = {
1553 { STR_RANGE(ssid, 0, MAX_SSID_LEN) },
1554 { INT_RANGE(scan_ssid, 0, 1) },
1555 { FUNC(bssid) },
1556 { FUNC_KEY(psk) },
1557 { FUNC(proto) },
1558 { FUNC(key_mgmt) },
1559 { INT(bg_scan_period) },
1560 { FUNC(pairwise) },
1561 { FUNC(group) },
1562 { FUNC(auth_alg) },
1563 { FUNC(scan_freq) },
1564 { FUNC(freq_list) },
1565 #ifdef IEEE8021X_EAPOL
1566 { FUNC(eap) },
1567 { STR_LENe(identity) },
1568 { STR_LENe(anonymous_identity) },
1569 { FUNC_KEY(password) },
1570 { STRe(ca_cert) },
1571 { STRe(ca_path) },
1572 { STRe(client_cert) },
1573 { STRe(private_key) },
1574 { STR_KEYe(private_key_passwd) },
1575 { STRe(dh_file) },
1576 { STRe(subject_match) },
1577 { STRe(altsubject_match) },
1578 { STRe(ca_cert2) },
1579 { STRe(ca_path2) },
1580 { STRe(client_cert2) },
1581 { STRe(private_key2) },
1582 { STR_KEYe(private_key2_passwd) },
1583 { STRe(dh_file2) },
1584 { STRe(subject_match2) },
1585 { STRe(altsubject_match2) },
1586 { STRe(phase1) },
1587 { STRe(phase2) },
1588 { STRe(pcsc) },
1589 { STR_KEYe(pin) },
1590 { STRe(engine_id) },
1591 { STRe(key_id) },
1592 { STRe(cert_id) },
1593 { STRe(ca_cert_id) },
1594 { STR_KEYe(pin2) },
1595 { STRe(engine2_id) },
1596 { STRe(key2_id) },
1597 { STRe(cert2_id) },
1598 { STRe(ca_cert2_id) },
1599 { INTe(engine) },
1600 { INTe(engine2) },
1601 { INT(eapol_flags) },
1602 #endif /* IEEE8021X_EAPOL */
1603 { FUNC_KEY(wep_key0) },
1604 { FUNC_KEY(wep_key1) },
1605 { FUNC_KEY(wep_key2) },
1606 { FUNC_KEY(wep_key3) },
1607 { INT(wep_tx_keyidx) },
1608 { INT(priority) },
1609 #ifdef IEEE8021X_EAPOL
1610 { INT(eap_workaround) },
1611 { STRe(pac_file) },
1612 { INTe(fragment_size) },
1613 #endif /* IEEE8021X_EAPOL */
1614 { INT_RANGE(mode, 0, 4) },
1615 { INT_RANGE(proactive_key_caching, 0, 1) },
1616 { INT_RANGE(disabled, 0, 2) },
1617 { STR(id_str) },
1618 #ifdef CONFIG_IEEE80211W
1619 { INT_RANGE(ieee80211w, 0, 2) },
1620 #endif /* CONFIG_IEEE80211W */
1621 { INT_RANGE(peerkey, 0, 1) },
1622 { INT_RANGE(mixed_cell, 0, 1) },
1623 { INT_RANGE(frequency, 0, 10000) },
1624 { INT(wpa_ptk_rekey) },
1625 { STR(bgscan) },
1626 { INT_RANGE(ignore_broadcast_ssid, 0, 2) },
1627 #ifdef CONFIG_P2P
1628 { FUNC(p2p_client_list) },
1629 #endif /* CONFIG_P2P */
1630 #ifdef CONFIG_HT_OVERRIDES
1631 { INT_RANGE(disable_ht, 0, 1) },
1632 { INT_RANGE(disable_ht40, -1, 1) },
1633 { INT_RANGE(disable_max_amsdu, -1, 1) },
1634 { INT_RANGE(ampdu_factor, -1, 3) },
1635 { INT_RANGE(ampdu_density, -1, 7) },
1636 { STR(ht_mcs) },
1637 #endif /* CONFIG_HT_OVERRIDES */
1638 { INT(ap_max_inactivity) },
1639 { INT(dtim_period) },
1640 };
1641
1642 #undef OFFSET
1643 #undef _STR
1644 #undef STR
1645 #undef STR_KEY
1646 #undef _STR_LEN
1647 #undef STR_LEN
1648 #undef STR_LEN_KEY
1649 #undef _STR_RANGE
1650 #undef STR_RANGE
1651 #undef STR_RANGE_KEY
1652 #undef _INT
1653 #undef INT
1654 #undef INT_RANGE
1655 #undef _FUNC
1656 #undef FUNC
1657 #undef FUNC_KEY
1658 #define NUM_SSID_FIELDS (sizeof(ssid_fields) / sizeof(ssid_fields[0]))
1659
1660
1661 /**
1662 * wpa_config_add_prio_network - Add a network to priority lists
1663 * @config: Configuration data from wpa_config_read()
1664 * @ssid: Pointer to the network configuration to be added to the list
1665 * Returns: 0 on success, -1 on failure
1666 *
1667 * This function is used to add a network block to the priority list of
1668 * networks. This must be called for each network when reading in the full
1669 * configuration. In addition, this can be used indirectly when updating
1670 * priorities by calling wpa_config_update_prio_list().
1671 */
1672 int wpa_config_add_prio_network(struct wpa_config *config,
1673 struct wpa_ssid *ssid)
1674 {
1675 int prio;
1676 struct wpa_ssid *prev, **nlist;
1677
1678 /*
1679 * Add to an existing priority list if one is available for the
1680 * configured priority level for this network.
1681 */
1682 for (prio = 0; prio < config->num_prio; prio++) {
1683 prev = config->pssid[prio];
1684 if (prev->priority == ssid->priority) {
1685 while (prev->pnext)
1686 prev = prev->pnext;
1687 prev->pnext = ssid;
1688 return 0;
1689 }
1690 }
1691
1692 /* First network for this priority - add a new priority list */
1693 nlist = os_realloc(config->pssid,
1694 (config->num_prio + 1) * sizeof(struct wpa_ssid *));
1695 if (nlist == NULL)
1696 return -1;
1697
1698 for (prio = 0; prio < config->num_prio; prio++) {
1699 if (nlist[prio]->priority < ssid->priority) {
1700 os_memmove(&nlist[prio + 1], &nlist[prio],
1701 (config->num_prio - prio) *
1702 sizeof(struct wpa_ssid *));
1703 break;
1704 }
1705 }
1706
1707 nlist[prio] = ssid;
1708 config->num_prio++;
1709 config->pssid = nlist;
1710
1711 return 0;
1712 }
1713
1714
1715 /**
1716 * wpa_config_update_prio_list - Update network priority list
1717 * @config: Configuration data from wpa_config_read()
1718 * Returns: 0 on success, -1 on failure
1719 *
1720 * This function is called to update the priority list of networks in the
1721 * configuration when a network is being added or removed. This is also called
1722 * if a priority for a network is changed.
1723 */
1724 int wpa_config_update_prio_list(struct wpa_config *config)
1725 {
1726 struct wpa_ssid *ssid;
1727 int ret = 0;
1728
1729 os_free(config->pssid);
1730 config->pssid = NULL;
1731 config->num_prio = 0;
1732
1733 ssid = config->ssid;
1734 while (ssid) {
1735 ssid->pnext = NULL;
1736 if (wpa_config_add_prio_network(config, ssid) < 0)
1737 ret = -1;
1738 ssid = ssid->next;
1739 }
1740
1741 return ret;
1742 }
1743
1744
1745 #ifdef IEEE8021X_EAPOL
1746 static void eap_peer_config_free(struct eap_peer_config *eap)
1747 {
1748 os_free(eap->eap_methods);
1749 os_free(eap->identity);
1750 os_free(eap->anonymous_identity);
1751 os_free(eap->password);
1752 os_free(eap->ca_cert);
1753 os_free(eap->ca_path);
1754 os_free(eap->client_cert);
1755 os_free(eap->private_key);
1756 os_free(eap->private_key_passwd);
1757 os_free(eap->dh_file);
1758 os_free(eap->subject_match);
1759 os_free(eap->altsubject_match);
1760 os_free(eap->ca_cert2);
1761 os_free(eap->ca_path2);
1762 os_free(eap->client_cert2);
1763 os_free(eap->private_key2);
1764 os_free(eap->private_key2_passwd);
1765 os_free(eap->dh_file2);
1766 os_free(eap->subject_match2);
1767 os_free(eap->altsubject_match2);
1768 os_free(eap->phase1);
1769 os_free(eap->phase2);
1770 os_free(eap->pcsc);
1771 os_free(eap->pin);
1772 os_free(eap->engine_id);
1773 os_free(eap->key_id);
1774 os_free(eap->cert_id);
1775 os_free(eap->ca_cert_id);
1776 os_free(eap->key2_id);
1777 os_free(eap->cert2_id);
1778 os_free(eap->ca_cert2_id);
1779 os_free(eap->pin2);
1780 os_free(eap->engine2_id);
1781 os_free(eap->otp);
1782 os_free(eap->pending_req_otp);
1783 os_free(eap->pac_file);
1784 os_free(eap->new_password);
1785 }
1786 #endif /* IEEE8021X_EAPOL */
1787
1788
1789 /**
1790 * wpa_config_free_ssid - Free network/ssid configuration data
1791 * @ssid: Configuration data for the network
1792 *
1793 * This function frees all resources allocated for the network configuration
1794 * data.
1795 */
1796 void wpa_config_free_ssid(struct wpa_ssid *ssid)
1797 {
1798 os_free(ssid->ssid);
1799 os_free(ssid->passphrase);
1800 os_free(ssid->ext_psk);
1801 #ifdef IEEE8021X_EAPOL
1802 eap_peer_config_free(&ssid->eap);
1803 #endif /* IEEE8021X_EAPOL */
1804 os_free(ssid->id_str);
1805 os_free(ssid->scan_freq);
1806 os_free(ssid->freq_list);
1807 os_free(ssid->bgscan);
1808 os_free(ssid->p2p_client_list);
1809 #ifdef CONFIG_HT_OVERRIDES
1810 os_free(ssid->ht_mcs);
1811 #endif /* CONFIG_HT_OVERRIDES */
1812 os_free(ssid);
1813 }
1814
1815
1816 void wpa_config_free_cred(struct wpa_cred *cred)
1817 {
1818 os_free(cred->realm);
1819 os_free(cred->username);
1820 os_free(cred->password);
1821 os_free(cred->ca_cert);
1822 os_free(cred->client_cert);
1823 os_free(cred->private_key);
1824 os_free(cred->private_key_passwd);
1825 os_free(cred->imsi);
1826 os_free(cred->milenage);
1827 os_free(cred->domain);
1828 os_free(cred->eap_method);
1829 os_free(cred->phase1);
1830 os_free(cred->phase2);
1831 os_free(cred);
1832 }
1833
1834
1835 /**
1836 * wpa_config_free - Free configuration data
1837 * @config: Configuration data from wpa_config_read()
1838 *
1839 * This function frees all resources allocated for the configuration data by
1840 * wpa_config_read().
1841 */
1842 void wpa_config_free(struct wpa_config *config)
1843 {
1844 #ifndef CONFIG_NO_CONFIG_BLOBS
1845 struct wpa_config_blob *blob, *prevblob;
1846 #endif /* CONFIG_NO_CONFIG_BLOBS */
1847 struct wpa_ssid *ssid, *prev = NULL;
1848 struct wpa_cred *cred, *cprev;
1849
1850 ssid = config->ssid;
1851 while (ssid) {
1852 prev = ssid;
1853 ssid = ssid->next;
1854 wpa_config_free_ssid(prev);
1855 }
1856
1857 cred = config->cred;
1858 while (cred) {
1859 cprev = cred;
1860 cred = cred->next;
1861 wpa_config_free_cred(cprev);
1862 }
1863
1864 #ifndef CONFIG_NO_CONFIG_BLOBS
1865 blob = config->blobs;
1866 prevblob = NULL;
1867 while (blob) {
1868 prevblob = blob;
1869 blob = blob->next;
1870 wpa_config_free_blob(prevblob);
1871 }
1872 #endif /* CONFIG_NO_CONFIG_BLOBS */
1873
1874 wpabuf_free(config->wps_vendor_ext_m1);
1875 os_free(config->ctrl_interface);
1876 os_free(config->ctrl_interface_group);
1877 os_free(config->opensc_engine_path);
1878 os_free(config->pkcs11_engine_path);
1879 os_free(config->pkcs11_module_path);
1880 os_free(config->pcsc_reader);
1881 os_free(config->pcsc_pin);
1882 os_free(config->driver_param);
1883 os_free(config->device_name);
1884 os_free(config->manufacturer);
1885 os_free(config->model_name);
1886 os_free(config->model_number);
1887 os_free(config->serial_number);
1888 os_free(config->config_methods);
1889 os_free(config->p2p_ssid_postfix);
1890 os_free(config->pssid);
1891 os_free(config->p2p_pref_chan);
1892 os_free(config->autoscan);
1893 wpabuf_free(config->wps_nfc_dh_pubkey);
1894 wpabuf_free(config->wps_nfc_dh_privkey);
1895 wpabuf_free(config->wps_nfc_dev_pw);
1896 os_free(config->ext_password_backend);
1897 os_free(config);
1898 }
1899
1900
1901 /**
1902 * wpa_config_foreach_network - Iterate over each configured network
1903 * @config: Configuration data from wpa_config_read()
1904 * @func: Callback function to process each network
1905 * @arg: Opaque argument to pass to callback function
1906 *
1907 * Iterate over the set of configured networks calling the specified
1908 * function for each item. We guard against callbacks removing the
1909 * supplied network.
1910 */
1911 void wpa_config_foreach_network(struct wpa_config *config,
1912 void (*func)(void *, struct wpa_ssid *),
1913 void *arg)
1914 {
1915 struct wpa_ssid *ssid, *next;
1916
1917 ssid = config->ssid;
1918 while (ssid) {
1919 next = ssid->next;
1920 func(arg, ssid);
1921 ssid = next;
1922 }
1923 }
1924
1925
1926 /**
1927 * wpa_config_get_network - Get configured network based on id
1928 * @config: Configuration data from wpa_config_read()
1929 * @id: Unique network id to search for
1930 * Returns: Network configuration or %NULL if not found
1931 */
1932 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
1933 {
1934 struct wpa_ssid *ssid;
1935
1936 ssid = config->ssid;
1937 while (ssid) {
1938 if (id == ssid->id)
1939 break;
1940 ssid = ssid->next;
1941 }
1942
1943 return ssid;
1944 }
1945
1946
1947 /**
1948 * wpa_config_add_network - Add a new network with empty configuration
1949 * @config: Configuration data from wpa_config_read()
1950 * Returns: The new network configuration or %NULL if operation failed
1951 */
1952 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
1953 {
1954 int id;
1955 struct wpa_ssid *ssid, *last = NULL;
1956
1957 id = -1;
1958 ssid = config->ssid;
1959 while (ssid) {
1960 if (ssid->id > id)
1961 id = ssid->id;
1962 last = ssid;
1963 ssid = ssid->next;
1964 }
1965 id++;
1966
1967 ssid = os_zalloc(sizeof(*ssid));
1968 if (ssid == NULL)
1969 return NULL;
1970 ssid->id = id;
1971 if (last)
1972 last->next = ssid;
1973 else
1974 config->ssid = ssid;
1975
1976 wpa_config_update_prio_list(config);
1977
1978 return ssid;
1979 }
1980
1981
1982 /**
1983 * wpa_config_remove_network - Remove a configured network based on id
1984 * @config: Configuration data from wpa_config_read()
1985 * @id: Unique network id to search for
1986 * Returns: 0 on success, or -1 if the network was not found
1987 */
1988 int wpa_config_remove_network(struct wpa_config *config, int id)
1989 {
1990 struct wpa_ssid *ssid, *prev = NULL;
1991
1992 ssid = config->ssid;
1993 while (ssid) {
1994 if (id == ssid->id)
1995 break;
1996 prev = ssid;
1997 ssid = ssid->next;
1998 }
1999
2000 if (ssid == NULL)
2001 return -1;
2002
2003 if (prev)
2004 prev->next = ssid->next;
2005 else
2006 config->ssid = ssid->next;
2007
2008 wpa_config_update_prio_list(config);
2009 wpa_config_free_ssid(ssid);
2010 return 0;
2011 }
2012
2013
2014 /**
2015 * wpa_config_set_network_defaults - Set network default values
2016 * @ssid: Pointer to network configuration data
2017 */
2018 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2019 {
2020 ssid->proto = DEFAULT_PROTO;
2021 ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2022 ssid->group_cipher = DEFAULT_GROUP;
2023 ssid->key_mgmt = DEFAULT_KEY_MGMT;
2024 ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2025 #ifdef IEEE8021X_EAPOL
2026 ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2027 ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2028 ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2029 #endif /* IEEE8021X_EAPOL */
2030 #ifdef CONFIG_HT_OVERRIDES
2031 ssid->disable_ht = DEFAULT_DISABLE_HT;
2032 ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2033 ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2034 ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2035 ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2036 #endif /* CONFIG_HT_OVERRIDES */
2037 }
2038
2039
2040 /**
2041 * wpa_config_set - Set a variable in network configuration
2042 * @ssid: Pointer to network configuration data
2043 * @var: Variable name, e.g., "ssid"
2044 * @value: Variable value
2045 * @line: Line number in configuration file or 0 if not used
2046 * Returns: 0 on success, -1 on failure
2047 *
2048 * This function can be used to set network configuration variables based on
2049 * both the configuration file and management interface input. The value
2050 * parameter must be in the same format as the text-based configuration file is
2051 * using. For example, strings are using double quotation marks.
2052 */
2053 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2054 int line)
2055 {
2056 size_t i;
2057 int ret = 0;
2058
2059 if (ssid == NULL || var == NULL || value == NULL)
2060 return -1;
2061
2062 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2063 const struct parse_data *field = &ssid_fields[i];
2064 if (os_strcmp(var, field->name) != 0)
2065 continue;
2066
2067 if (field->parser(field, ssid, line, value)) {
2068 if (line) {
2069 wpa_printf(MSG_ERROR, "Line %d: failed to "
2070 "parse %s '%s'.", line, var, value);
2071 }
2072 ret = -1;
2073 }
2074 break;
2075 }
2076 if (i == NUM_SSID_FIELDS) {
2077 if (line) {
2078 wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2079 "'%s'.", line, var);
2080 }
2081 ret = -1;
2082 }
2083
2084 return ret;
2085 }
2086
2087
2088 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2089 const char *value)
2090 {
2091 size_t len;
2092 char *buf;
2093 int ret;
2094
2095 len = os_strlen(value);
2096 buf = os_malloc(len + 3);
2097 if (buf == NULL)
2098 return -1;
2099 buf[0] = '"';
2100 os_memcpy(buf + 1, value, len);
2101 buf[len + 1] = '"';
2102 buf[len + 2] = '\0';
2103 ret = wpa_config_set(ssid, var, buf, 0);
2104 os_free(buf);
2105 return ret;
2106 }
2107
2108
2109 /**
2110 * wpa_config_get_all - Get all options from network configuration
2111 * @ssid: Pointer to network configuration data
2112 * @get_keys: Determines if keys/passwords will be included in returned list
2113 * (if they may be exported)
2114 * Returns: %NULL terminated list of all set keys and their values in the form
2115 * of [key1, val1, key2, val2, ... , NULL]
2116 *
2117 * This function can be used to get list of all configured network properties.
2118 * The caller is responsible for freeing the returned list and all its
2119 * elements.
2120 */
2121 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2122 {
2123 const struct parse_data *field;
2124 char *key, *value;
2125 size_t i;
2126 char **props;
2127 int fields_num;
2128
2129 get_keys = get_keys && ssid->export_keys;
2130
2131 props = os_zalloc(sizeof(char *) * ((2 * NUM_SSID_FIELDS) + 1));
2132 if (!props)
2133 return NULL;
2134
2135 fields_num = 0;
2136 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2137 field = &ssid_fields[i];
2138 if (field->key_data && !get_keys)
2139 continue;
2140 value = field->writer(field, ssid);
2141 if (value == NULL)
2142 continue;
2143 if (os_strlen(value) == 0) {
2144 os_free(value);
2145 continue;
2146 }
2147
2148 key = os_strdup(field->name);
2149 if (key == NULL) {
2150 os_free(value);
2151 goto err;
2152 }
2153
2154 props[fields_num * 2] = key;
2155 props[fields_num * 2 + 1] = value;
2156
2157 fields_num++;
2158 }
2159
2160 return props;
2161
2162 err:
2163 value = *props;
2164 while (value)
2165 os_free(value++);
2166 os_free(props);
2167 return NULL;
2168 }
2169
2170
2171 #ifndef NO_CONFIG_WRITE
2172 /**
2173 * wpa_config_get - Get a variable in network configuration
2174 * @ssid: Pointer to network configuration data
2175 * @var: Variable name, e.g., "ssid"
2176 * Returns: Value of the variable or %NULL on failure
2177 *
2178 * This function can be used to get network configuration variables. The
2179 * returned value is a copy of the configuration variable in text format, i.e,.
2180 * the same format that the text-based configuration file and wpa_config_set()
2181 * are using for the value. The caller is responsible for freeing the returned
2182 * value.
2183 */
2184 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2185 {
2186 size_t i;
2187
2188 if (ssid == NULL || var == NULL)
2189 return NULL;
2190
2191 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2192 const struct parse_data *field = &ssid_fields[i];
2193 if (os_strcmp(var, field->name) == 0)
2194 return field->writer(field, ssid);
2195 }
2196
2197 return NULL;
2198 }
2199
2200
2201 /**
2202 * wpa_config_get_no_key - Get a variable in network configuration (no keys)
2203 * @ssid: Pointer to network configuration data
2204 * @var: Variable name, e.g., "ssid"
2205 * Returns: Value of the variable or %NULL on failure
2206 *
2207 * This function can be used to get network configuration variable like
2208 * wpa_config_get(). The only difference is that this functions does not expose
2209 * key/password material from the configuration. In case a key/password field
2210 * is requested, the returned value is an empty string or %NULL if the variable
2211 * is not set or "*" if the variable is set (regardless of its value). The
2212 * returned value is a copy of the configuration variable in text format, i.e,.
2213 * the same format that the text-based configuration file and wpa_config_set()
2214 * are using for the value. The caller is responsible for freeing the returned
2215 * value.
2216 */
2217 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
2218 {
2219 size_t i;
2220
2221 if (ssid == NULL || var == NULL)
2222 return NULL;
2223
2224 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2225 const struct parse_data *field = &ssid_fields[i];
2226 if (os_strcmp(var, field->name) == 0) {
2227 char *res = field->writer(field, ssid);
2228 if (field->key_data) {
2229 if (res && res[0]) {
2230 wpa_printf(MSG_DEBUG, "Do not allow "
2231 "key_data field to be "
2232 "exposed");
2233 os_free(res);
2234 return os_strdup("*");
2235 }
2236
2237 os_free(res);
2238 return NULL;
2239 }
2240 return res;
2241 }
2242 }
2243
2244 return NULL;
2245 }
2246 #endif /* NO_CONFIG_WRITE */
2247
2248
2249 /**
2250 * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
2251 * @ssid: Pointer to network configuration data
2252 *
2253 * This function must be called to update WPA PSK when either SSID or the
2254 * passphrase has changed for the network configuration.
2255 */
2256 void wpa_config_update_psk(struct wpa_ssid *ssid)
2257 {
2258 #ifndef CONFIG_NO_PBKDF2
2259 pbkdf2_sha1(ssid->passphrase,
2260 (char *) ssid->ssid, ssid->ssid_len, 4096,
2261 ssid->psk, PMK_LEN);
2262 wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
2263 ssid->psk, PMK_LEN);
2264 ssid->psk_set = 1;
2265 #endif /* CONFIG_NO_PBKDF2 */
2266 }
2267
2268
2269 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
2270 const char *value, int line)
2271 {
2272 char *val;
2273 size_t len;
2274
2275 if (os_strcmp(var, "priority") == 0) {
2276 cred->priority = atoi(value);
2277 return 0;
2278 }
2279
2280 if (os_strcmp(var, "pcsc") == 0) {
2281 cred->pcsc = atoi(value);
2282 return 0;
2283 }
2284
2285 if (os_strcmp(var, "eap") == 0) {
2286 struct eap_method_type method;
2287 method.method = eap_peer_get_type(value, &method.vendor);
2288 if (method.vendor == EAP_VENDOR_IETF &&
2289 method.method == EAP_TYPE_NONE) {
2290 wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
2291 "for a credential", line, value);
2292 return -1;
2293 }
2294 os_free(cred->eap_method);
2295 cred->eap_method = os_malloc(sizeof(*cred->eap_method));
2296 if (cred->eap_method == NULL)
2297 return -1;
2298 os_memcpy(cred->eap_method, &method, sizeof(method));
2299 return 0;
2300 }
2301
2302 val = wpa_config_parse_string(value, &len);
2303 if (val == NULL) {
2304 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
2305 "value '%s'.", line, var, value);
2306 return -1;
2307 }
2308
2309 if (os_strcmp(var, "realm") == 0) {
2310 os_free(cred->realm);
2311 cred->realm = val;
2312 return 0;
2313 }
2314
2315 if (os_strcmp(var, "username") == 0) {
2316 os_free(cred->username);
2317 cred->username = val;
2318 return 0;
2319 }
2320
2321 if (os_strcmp(var, "password") == 0) {
2322 os_free(cred->password);
2323 cred->password = val;
2324 return 0;
2325 }
2326
2327 if (os_strcmp(var, "ca_cert") == 0) {
2328 os_free(cred->ca_cert);
2329 cred->ca_cert = val;
2330 return 0;
2331 }
2332
2333 if (os_strcmp(var, "client_cert") == 0) {
2334 os_free(cred->client_cert);
2335 cred->client_cert = val;
2336 return 0;
2337 }
2338
2339 if (os_strcmp(var, "private_key") == 0) {
2340 os_free(cred->private_key);
2341 cred->private_key = val;
2342 return 0;
2343 }
2344
2345 if (os_strcmp(var, "private_key_passwd") == 0) {
2346 os_free(cred->private_key_passwd);
2347 cred->private_key_passwd = val;
2348 return 0;
2349 }
2350
2351 if (os_strcmp(var, "imsi") == 0) {
2352 os_free(cred->imsi);
2353 cred->imsi = val;
2354 return 0;
2355 }
2356
2357 if (os_strcmp(var, "milenage") == 0) {
2358 os_free(cred->milenage);
2359 cred->milenage = val;
2360 return 0;
2361 }
2362
2363 if (os_strcmp(var, "domain") == 0) {
2364 os_free(cred->domain);
2365 cred->domain = val;
2366 return 0;
2367 }
2368
2369 if (os_strcmp(var, "phase1") == 0) {
2370 os_free(cred->phase1);
2371 cred->phase1 = val;
2372 return 0;
2373 }
2374
2375 if (os_strcmp(var, "phase2") == 0) {
2376 os_free(cred->phase2);
2377 cred->phase2 = val;
2378 return 0;
2379 }
2380
2381 if (os_strcmp(var, "roaming_consortium") == 0) {
2382 if (len < 3 || len > sizeof(cred->roaming_consortium)) {
2383 wpa_printf(MSG_ERROR, "Line %d: invalid "
2384 "roaming_consortium length %d (3..15 "
2385 "expected)", line, (int) len);
2386 os_free(val);
2387 return -1;
2388 }
2389 os_memcpy(cred->roaming_consortium, val, len);
2390 cred->roaming_consortium_len = len;
2391 os_free(val);
2392 return 0;
2393 }
2394
2395 if (line) {
2396 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
2397 line, var);
2398 }
2399
2400 os_free(val);
2401
2402 return -1;
2403 }
2404
2405
2406 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
2407 {
2408 struct wpa_cred *cred;
2409
2410 cred = config->cred;
2411 while (cred) {
2412 if (id == cred->id)
2413 break;
2414 cred = cred->next;
2415 }
2416
2417 return cred;
2418 }
2419
2420
2421 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
2422 {
2423 int id;
2424 struct wpa_cred *cred, *last = NULL;
2425
2426 id = -1;
2427 cred = config->cred;
2428 while (cred) {
2429 if (cred->id > id)
2430 id = cred->id;
2431 last = cred;
2432 cred = cred->next;
2433 }
2434 id++;
2435
2436 cred = os_zalloc(sizeof(*cred));
2437 if (cred == NULL)
2438 return NULL;
2439 cred->id = id;
2440 if (last)
2441 last->next = cred;
2442 else
2443 config->cred = cred;
2444
2445 return cred;
2446 }
2447
2448
2449 int wpa_config_remove_cred(struct wpa_config *config, int id)
2450 {
2451 struct wpa_cred *cred, *prev = NULL;
2452
2453 cred = config->cred;
2454 while (cred) {
2455 if (id == cred->id)
2456 break;
2457 prev = cred;
2458 cred = cred->next;
2459 }
2460
2461 if (cred == NULL)
2462 return -1;
2463
2464 if (prev)
2465 prev->next = cred->next;
2466 else
2467 config->cred = cred->next;
2468
2469 wpa_config_free_cred(cred);
2470 return 0;
2471 }
2472
2473
2474 #ifndef CONFIG_NO_CONFIG_BLOBS
2475 /**
2476 * wpa_config_get_blob - Get a named configuration blob
2477 * @config: Configuration data from wpa_config_read()
2478 * @name: Name of the blob
2479 * Returns: Pointer to blob data or %NULL if not found
2480 */
2481 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
2482 const char *name)
2483 {
2484 struct wpa_config_blob *blob = config->blobs;
2485
2486 while (blob) {
2487 if (os_strcmp(blob->name, name) == 0)
2488 return blob;
2489 blob = blob->next;
2490 }
2491 return NULL;
2492 }
2493
2494
2495 /**
2496 * wpa_config_set_blob - Set or add a named configuration blob
2497 * @config: Configuration data from wpa_config_read()
2498 * @blob: New value for the blob
2499 *
2500 * Adds a new configuration blob or replaces the current value of an existing
2501 * blob.
2502 */
2503 void wpa_config_set_blob(struct wpa_config *config,
2504 struct wpa_config_blob *blob)
2505 {
2506 wpa_config_remove_blob(config, blob->name);
2507 blob->next = config->blobs;
2508 config->blobs = blob;
2509 }
2510
2511
2512 /**
2513 * wpa_config_free_blob - Free blob data
2514 * @blob: Pointer to blob to be freed
2515 */
2516 void wpa_config_free_blob(struct wpa_config_blob *blob)
2517 {
2518 if (blob) {
2519 os_free(blob->name);
2520 os_free(blob->data);
2521 os_free(blob);
2522 }
2523 }
2524
2525
2526 /**
2527 * wpa_config_remove_blob - Remove a named configuration blob
2528 * @config: Configuration data from wpa_config_read()
2529 * @name: Name of the blob to remove
2530 * Returns: 0 if blob was removed or -1 if blob was not found
2531 */
2532 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
2533 {
2534 struct wpa_config_blob *pos = config->blobs, *prev = NULL;
2535
2536 while (pos) {
2537 if (os_strcmp(pos->name, name) == 0) {
2538 if (prev)
2539 prev->next = pos->next;
2540 else
2541 config->blobs = pos->next;
2542 wpa_config_free_blob(pos);
2543 return 0;
2544 }
2545 prev = pos;
2546 pos = pos->next;
2547 }
2548
2549 return -1;
2550 }
2551 #endif /* CONFIG_NO_CONFIG_BLOBS */
2552
2553
2554 /**
2555 * wpa_config_alloc_empty - Allocate an empty configuration
2556 * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
2557 * socket
2558 * @driver_param: Driver parameters
2559 * Returns: Pointer to allocated configuration data or %NULL on failure
2560 */
2561 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
2562 const char *driver_param)
2563 {
2564 struct wpa_config *config;
2565
2566 config = os_zalloc(sizeof(*config));
2567 if (config == NULL)
2568 return NULL;
2569 config->eapol_version = DEFAULT_EAPOL_VERSION;
2570 config->ap_scan = DEFAULT_AP_SCAN;
2571 config->fast_reauth = DEFAULT_FAST_REAUTH;
2572 config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
2573 config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
2574 config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
2575 config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
2576 config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
2577 config->max_num_sta = DEFAULT_MAX_NUM_STA;
2578 config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
2579
2580 if (ctrl_interface)
2581 config->ctrl_interface = os_strdup(ctrl_interface);
2582 if (driver_param)
2583 config->driver_param = os_strdup(driver_param);
2584
2585 return config;
2586 }
2587
2588
2589 #ifndef CONFIG_NO_STDOUT_DEBUG
2590 /**
2591 * wpa_config_debug_dump_networks - Debug dump of configured networks
2592 * @config: Configuration data from wpa_config_read()
2593 */
2594 void wpa_config_debug_dump_networks(struct wpa_config *config)
2595 {
2596 int prio;
2597 struct wpa_ssid *ssid;
2598
2599 for (prio = 0; prio < config->num_prio; prio++) {
2600 ssid = config->pssid[prio];
2601 wpa_printf(MSG_DEBUG, "Priority group %d",
2602 ssid->priority);
2603 while (ssid) {
2604 wpa_printf(MSG_DEBUG, " id=%d ssid='%s'",
2605 ssid->id,
2606 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
2607 ssid = ssid->pnext;
2608 }
2609 }
2610 }
2611 #endif /* CONFIG_NO_STDOUT_DEBUG */
2612
2613
2614 struct global_parse_data {
2615 char *name;
2616 int (*parser)(const struct global_parse_data *data,
2617 struct wpa_config *config, int line, const char *value);
2618 void *param1, *param2, *param3;
2619 unsigned int changed_flag;
2620 };
2621
2622
2623 static int wpa_global_config_parse_int(const struct global_parse_data *data,
2624 struct wpa_config *config, int line,
2625 const char *pos)
2626 {
2627 int *dst;
2628 dst = (int *) (((u8 *) config) + (long) data->param1);
2629 *dst = atoi(pos);
2630 wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
2631
2632 if (data->param2 && *dst < (long) data->param2) {
2633 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
2634 "min_value=%ld)", line, data->name, *dst,
2635 (long) data->param2);
2636 *dst = (long) data->param2;
2637 return -1;
2638 }
2639
2640 if (data->param3 && *dst > (long) data->param3) {
2641 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
2642 "max_value=%ld)", line, data->name, *dst,
2643 (long) data->param3);
2644 *dst = (long) data->param3;
2645 return -1;
2646 }
2647
2648 return 0;
2649 }
2650
2651
2652 static int wpa_global_config_parse_str(const struct global_parse_data *data,
2653 struct wpa_config *config, int line,
2654 const char *pos)
2655 {
2656 size_t len;
2657 char **dst, *tmp;
2658
2659 len = os_strlen(pos);
2660 if (data->param2 && len < (size_t) data->param2) {
2661 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
2662 "min_len=%ld)", line, data->name,
2663 (unsigned long) len, (long) data->param2);
2664 return -1;
2665 }
2666
2667 if (data->param3 && len > (size_t) data->param3) {
2668 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
2669 "max_len=%ld)", line, data->name,
2670 (unsigned long) len, (long) data->param3);
2671 return -1;
2672 }
2673
2674 tmp = os_strdup(pos);
2675 if (tmp == NULL)
2676 return -1;
2677
2678 dst = (char **) (((u8 *) config) + (long) data->param1);
2679 os_free(*dst);
2680 *dst = tmp;
2681 wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
2682
2683 return 0;
2684 }
2685
2686
2687 static int wpa_global_config_parse_bin(const struct global_parse_data *data,
2688 struct wpa_config *config, int line,
2689 const char *pos)
2690 {
2691 size_t len;
2692 struct wpabuf **dst, *tmp;
2693
2694 len = os_strlen(pos);
2695 if (len & 0x01)
2696 return -1;
2697
2698 tmp = wpabuf_alloc(len / 2);
2699 if (tmp == NULL)
2700 return -1;
2701
2702 if (hexstr2bin(pos, wpabuf_put(tmp, len / 2), len / 2)) {
2703 wpabuf_free(tmp);
2704 return -1;
2705 }
2706
2707 dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
2708 wpabuf_free(*dst);
2709 *dst = tmp;
2710 wpa_printf(MSG_DEBUG, "%s", data->name);
2711
2712 return 0;
2713 }
2714
2715
2716 static int wpa_config_process_country(const struct global_parse_data *data,
2717 struct wpa_config *config, int line,
2718 const char *pos)
2719 {
2720 if (!pos[0] || !pos[1]) {
2721 wpa_printf(MSG_DEBUG, "Invalid country set");
2722 return -1;
2723 }
2724 config->country[0] = pos[0];
2725 config->country[1] = pos[1];
2726 wpa_printf(MSG_DEBUG, "country='%c%c'",
2727 config->country[0], config->country[1]);
2728 return 0;
2729 }
2730
2731
2732 static int wpa_config_process_load_dynamic_eap(
2733 const struct global_parse_data *data, struct wpa_config *config,
2734 int line, const char *so)
2735 {
2736 int ret;
2737 wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
2738 ret = eap_peer_method_load(so);
2739 if (ret == -2) {
2740 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
2741 "reloading.");
2742 } else if (ret) {
2743 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
2744 "method '%s'.", line, so);
2745 return -1;
2746 }
2747
2748 return 0;
2749 }
2750
2751
2752 #ifdef CONFIG_WPS
2753
2754 static int wpa_config_process_uuid(const struct global_parse_data *data,
2755 struct wpa_config *config, int line,
2756 const char *pos)
2757 {
2758 char buf[40];
2759 if (uuid_str2bin(pos, config->uuid)) {
2760 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
2761 return -1;
2762 }
2763 uuid_bin2str(config->uuid, buf, sizeof(buf));
2764 wpa_printf(MSG_DEBUG, "uuid=%s", buf);
2765 return 0;
2766 }
2767
2768
2769 static int wpa_config_process_device_type(
2770 const struct global_parse_data *data,
2771 struct wpa_config *config, int line, const char *pos)
2772 {
2773 return wps_dev_type_str2bin(pos, config->device_type);
2774 }
2775
2776
2777 static int wpa_config_process_os_version(const struct global_parse_data *data,
2778 struct wpa_config *config, int line,
2779 const char *pos)
2780 {
2781 if (hexstr2bin(pos, config->os_version, 4)) {
2782 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
2783 return -1;
2784 }
2785 wpa_printf(MSG_DEBUG, "os_version=%08x",
2786 WPA_GET_BE32(config->os_version));
2787 return 0;
2788 }
2789
2790
2791 static int wpa_config_process_wps_vendor_ext_m1(
2792 const struct global_parse_data *data,
2793 struct wpa_config *config, int line, const char *pos)
2794 {
2795 struct wpabuf *tmp;
2796 int len = os_strlen(pos) / 2;
2797 u8 *p;
2798
2799 if (!len) {
2800 wpa_printf(MSG_ERROR, "Line %d: "
2801 "invalid wps_vendor_ext_m1", line);
2802 return -1;
2803 }
2804
2805 tmp = wpabuf_alloc(len);
2806 if (tmp) {
2807 p = wpabuf_put(tmp, len);
2808
2809 if (hexstr2bin(pos, p, len)) {
2810 wpa_printf(MSG_ERROR, "Line %d: "
2811 "invalid wps_vendor_ext_m1", line);
2812 wpabuf_free(tmp);
2813 return -1;
2814 }
2815
2816 wpabuf_free(config->wps_vendor_ext_m1);
2817 config->wps_vendor_ext_m1 = tmp;
2818 } else {
2819 wpa_printf(MSG_ERROR, "Can not allocate "
2820 "memory for wps_vendor_ext_m1");
2821 return -1;
2822 }
2823
2824 return 0;
2825 }
2826
2827 #endif /* CONFIG_WPS */
2828
2829 #ifdef CONFIG_P2P
2830 static int wpa_config_process_sec_device_type(
2831 const struct global_parse_data *data,
2832 struct wpa_config *config, int line, const char *pos)
2833 {
2834 int idx;
2835
2836 if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
2837 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
2838 "items", line);
2839 return -1;
2840 }
2841
2842 idx = config->num_sec_device_types;
2843
2844 if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
2845 return -1;
2846
2847 config->num_sec_device_types++;
2848 return 0;
2849 }
2850
2851
2852 static int wpa_config_process_p2p_pref_chan(
2853 const struct global_parse_data *data,
2854 struct wpa_config *config, int line, const char *pos)
2855 {
2856 struct p2p_channel *pref = NULL, *n;
2857 unsigned int num = 0;
2858 const char *pos2;
2859 u8 op_class, chan;
2860
2861 /* format: class:chan,class:chan,... */
2862
2863 while (*pos) {
2864 op_class = atoi(pos);
2865 pos2 = os_strchr(pos, ':');
2866 if (pos2 == NULL)
2867 goto fail;
2868 pos2++;
2869 chan = atoi(pos2);
2870
2871 n = os_realloc(pref, (num + 1) * sizeof(struct p2p_channel));
2872 if (n == NULL)
2873 goto fail;
2874 pref = n;
2875 pref[num].op_class = op_class;
2876 pref[num].chan = chan;
2877 num++;
2878
2879 pos = os_strchr(pos2, ',');
2880 if (pos == NULL)
2881 break;
2882 pos++;
2883 }
2884
2885 os_free(config->p2p_pref_chan);
2886 config->p2p_pref_chan = pref;
2887 config->num_p2p_pref_chan = num;
2888 wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
2889 (u8 *) config->p2p_pref_chan,
2890 config->num_p2p_pref_chan * sizeof(struct p2p_channel));
2891
2892 return 0;
2893
2894 fail:
2895 os_free(pref);
2896 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
2897 return -1;
2898 }
2899 #endif /* CONFIG_P2P */
2900
2901
2902 static int wpa_config_process_hessid(
2903 const struct global_parse_data *data,
2904 struct wpa_config *config, int line, const char *pos)
2905 {
2906 if (hwaddr_aton2(pos, config->hessid) < 0) {
2907 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
2908 line, pos);
2909 return -1;
2910 }
2911
2912 return 0;
2913 }
2914
2915
2916 #ifdef OFFSET
2917 #undef OFFSET
2918 #endif /* OFFSET */
2919 /* OFFSET: Get offset of a variable within the wpa_config structure */
2920 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
2921
2922 #define FUNC(f) #f, wpa_config_process_ ## f, OFFSET(f), NULL, NULL
2923 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL
2924 #define _INT(f) #f, wpa_global_config_parse_int, OFFSET(f)
2925 #define INT(f) _INT(f), NULL, NULL
2926 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
2927 #define _STR(f) #f, wpa_global_config_parse_str, OFFSET(f)
2928 #define STR(f) _STR(f), NULL, NULL
2929 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
2930 #define BIN(f) #f, wpa_global_config_parse_bin, OFFSET(f), NULL, NULL
2931
2932 static const struct global_parse_data global_fields[] = {
2933 #ifdef CONFIG_CTRL_IFACE
2934 { STR(ctrl_interface), 0 },
2935 { STR(ctrl_interface_group), 0 } /* deprecated */,
2936 #endif /* CONFIG_CTRL_IFACE */
2937 { INT_RANGE(eapol_version, 1, 2), 0 },
2938 { INT(ap_scan), 0 },
2939 { INT(disable_scan_offload), 0 },
2940 { INT(fast_reauth), 0 },
2941 { STR(opensc_engine_path), 0 },
2942 { STR(pkcs11_engine_path), 0 },
2943 { STR(pkcs11_module_path), 0 },
2944 { STR(pcsc_reader), 0 },
2945 { STR(pcsc_pin), 0 },
2946 { STR(driver_param), 0 },
2947 { INT(dot11RSNAConfigPMKLifetime), 0 },
2948 { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
2949 { INT(dot11RSNAConfigSATimeout), 0 },
2950 #ifndef CONFIG_NO_CONFIG_WRITE
2951 { INT(update_config), 0 },
2952 #endif /* CONFIG_NO_CONFIG_WRITE */
2953 { FUNC_NO_VAR(load_dynamic_eap), 0 },
2954 #ifdef CONFIG_WPS
2955 { FUNC(uuid), CFG_CHANGED_UUID },
2956 { STR_RANGE(device_name, 0, 32), CFG_CHANGED_DEVICE_NAME },
2957 { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
2958 { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
2959 { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
2960 { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
2961 { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
2962 { FUNC(os_version), CFG_CHANGED_OS_VERSION },
2963 { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
2964 { INT_RANGE(wps_cred_processing, 0, 2), 0 },
2965 { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
2966 #endif /* CONFIG_WPS */
2967 #ifdef CONFIG_P2P
2968 { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
2969 { INT(p2p_listen_reg_class), 0 },
2970 { INT(p2p_listen_channel), 0 },
2971 { INT(p2p_oper_reg_class), 0 },
2972 { INT(p2p_oper_channel), 0 },
2973 { INT_RANGE(p2p_go_intent, 0, 15), 0 },
2974 { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
2975 { INT_RANGE(persistent_reconnect, 0, 1), 0 },
2976 { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
2977 { INT(p2p_group_idle), 0 },
2978 { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
2979 #endif /* CONFIG_P2P */
2980 { FUNC(country), CFG_CHANGED_COUNTRY },
2981 { INT(bss_max_count), 0 },
2982 { INT(bss_expiration_age), 0 },
2983 { INT(bss_expiration_scan_count), 0 },
2984 { INT_RANGE(filter_ssids, 0, 1), 0 },
2985 { INT_RANGE(filter_rssi, -100, 0), 0 },
2986 { INT(max_num_sta), 0 },
2987 { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
2988 #ifdef CONFIG_HS20
2989 { INT_RANGE(hs20, 0, 1), 0 },
2990 #endif /* CONFIG_HS20 */
2991 { INT_RANGE(interworking, 0, 1), 0 },
2992 { FUNC(hessid), 0 },
2993 { INT_RANGE(access_network_type, 0, 15), 0 },
2994 { INT_RANGE(pbc_in_m1, 0, 1), 0 },
2995 { STR(autoscan), 0 },
2996 { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff), 0 },
2997 { BIN(wps_nfc_dh_pubkey), 0 },
2998 { BIN(wps_nfc_dh_privkey), 0 },
2999 { BIN(wps_nfc_dev_pw), 0 },
3000 { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND }
3001 };
3002
3003 #undef FUNC
3004 #undef _INT
3005 #undef INT
3006 #undef INT_RANGE
3007 #undef _STR
3008 #undef STR
3009 #undef STR_RANGE
3010 #undef BIN
3011 #define NUM_GLOBAL_FIELDS (sizeof(global_fields) / sizeof(global_fields[0]))
3012
3013
3014 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
3015 {
3016 size_t i;
3017 int ret = 0;
3018
3019 for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
3020 const struct global_parse_data *field = &global_fields[i];
3021 size_t flen = os_strlen(field->name);
3022 if (os_strncmp(pos, field->name, flen) != 0 ||
3023 pos[flen] != '=')
3024 continue;
3025
3026 if (field->parser(field, config, line, pos + flen + 1)) {
3027 wpa_printf(MSG_ERROR, "Line %d: failed to "
3028 "parse '%s'.", line, pos);
3029 ret = -1;
3030 }
3031 config->changed_parameters |= field->changed_flag;
3032 break;
3033 }
3034 if (i == NUM_GLOBAL_FIELDS) {
3035 if (line < 0)
3036 return -1;
3037 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
3038 line, pos);
3039 ret = -1;
3040 }
3041
3042 return ret;
3043 }
Unnamed repository; edit this file 'description' to name the repository.