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P2P: Add dynamic network config block parameters for P2P
[thirdparty/hostap.git] / wpa_supplicant / config.c
CommitLineData
6fc6879b
JM		 1/*
2 * WPA Supplicant / Configuration parser and common functions
56586197 3 * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
6fc6879b
JM		 4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
11 *
12 * See README and COPYING for more details.
13 */
14
15#include "includes.h"
16
17#include "common.h"
121adf9c 18#include "utils/uuid.h"
03da66bd 19#include "crypto/sha1.h"
3acb5005 20#include "rsn_supp/wpa.h"
6fc6879b
JM		 21#include "eap_peer/eap.h"
22#include "config.h"
23
24
25#if !defined(CONFIG_CTRL_IFACE) && defined(CONFIG_NO_CONFIG_WRITE)
26#define NO_CONFIG_WRITE
27#endif
28
29/*
30 * Structure for network configuration parsing. This data is used to implement
31 * a generic parser for each network block variable. The table of configuration
32 * variables is defined below in this file (ssid_fields[]).
33 */
34struct parse_data {
35 /* Configuration variable name */
36 char *name;
37
38 /* Parser function for this variable */
39 int (*parser)(const struct parse_data *data, struct wpa_ssid *ssid,
40 int line, const char *value);
41
42#ifndef NO_CONFIG_WRITE
43 /* Writer function (i.e., to get the variable in text format from
44 * internal presentation). */
45 char * (*writer)(const struct parse_data *data, struct wpa_ssid *ssid);
46#endif /* NO_CONFIG_WRITE */
47
48 /* Variable specific parameters for the parser. */
49 void *param1, *param2, *param3, *param4;
50
51 /* 0 = this variable can be included in debug output and ctrl_iface
52 * 1 = this variable contains key/private data and it must not be
53 * included in debug output unless explicitly requested. In
54 * addition, this variable will not be readable through the
55 * ctrl_iface.
56 */
57 int key_data;
58};
59
60
61static char * wpa_config_parse_string(const char *value, size_t *len)
62{
63 if (*value == '"') {
e237a6b0
JM		 64 const char *pos;
65 char *str;
6fc6879b
JM		 66 value++;
67 pos = os_strrchr(value, '"');
68 if (pos == NULL || pos[1] != '\0')
69 return NULL;
e237a6b0
JM		 70 *len = pos - value;
71 str = os_malloc(*len + 1);
72 if (str == NULL)
73 return NULL;
74 os_memcpy(str, value, *len);
75 str[*len] = '\0';
76 return str;
6fc6879b
JM		 77 } else {
78 u8 *str;
79 size_t tlen, hlen = os_strlen(value);
80 if (hlen & 1)
81 return NULL;
82 tlen = hlen / 2;
83 str = os_malloc(tlen + 1);
84 if (str == NULL)
85 return NULL;
86 if (hexstr2bin(value, str, tlen)) {
87 os_free(str);
88 return NULL;
89 }
90 str[tlen] = '\0';
91 *len = tlen;
92 return (char *) str;
93 }
94}
95
96
97static int wpa_config_parse_str(const struct parse_data *data,
98 struct wpa_ssid *ssid,
99 int line, const char *value)
100{
101 size_t res_len, *dst_len;
102 char **dst, *tmp;
103
b56c0546
JM		 104 if (os_strcmp(value, "NULL") == 0) {
105 wpa_printf(MSG_DEBUG, "Unset configuration string '%s'",
106 data->name);
107 tmp = NULL;
108 res_len = 0;
109 goto set;
110 }
111
6fc6879b
JM		 112 tmp = wpa_config_parse_string(value, &res_len);
113 if (tmp == NULL) {
114 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s '%s'.",
115 line, data->name,
116 data->key_data ? "[KEY DATA REMOVED]" : value);
117 return -1;
118 }
119
120 if (data->key_data) {
121 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
122 (u8 *) tmp, res_len);
123 } else {
124 wpa_hexdump_ascii(MSG_MSGDUMP, data->name,
125 (u8 *) tmp, res_len);
126 }
127
128 if (data->param3 && res_len < (size_t) data->param3) {
129 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
130 "min_len=%ld)", line, data->name,
131 (unsigned long) res_len, (long) data->param3);
132 os_free(tmp);
133 return -1;
134 }
135
136 if (data->param4 && res_len > (size_t) data->param4) {
137 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
138 "max_len=%ld)", line, data->name,
139 (unsigned long) res_len, (long) data->param4);
140 os_free(tmp);
141 return -1;
142 }
143
b56c0546 144set:
6fc6879b
JM		 145 dst = (char **) (((u8 *) ssid) + (long) data->param1);
146 dst_len = (size_t *) (((u8 *) ssid) + (long) data->param2);
147 os_free(*dst);
148 *dst = tmp;
149 if (data->param2)
150 *dst_len = res_len;
151
152 return 0;
153}
154
155
156#ifndef NO_CONFIG_WRITE
157static int is_hex(const u8 *data, size_t len)
158{
159 size_t i;
160
161 for (i = 0; i < len; i++) {
162 if (data[i] < 32 || data[i] >= 127)
163 return 1;
164 }
165 return 0;
166}
167
168
169static char * wpa_config_write_string_ascii(const u8 *value, size_t len)
170{
171 char *buf;
172
173 buf = os_malloc(len + 3);
174 if (buf == NULL)
175 return NULL;
176 buf[0] = '"';
177 os_memcpy(buf + 1, value, len);
178 buf[len + 1] = '"';
179 buf[len + 2] = '\0';
180
181 return buf;
182}
183
184
185static char * wpa_config_write_string_hex(const u8 *value, size_t len)
186{
187 char *buf;
188
189 buf = os_zalloc(2 * len + 1);
190 if (buf == NULL)
191 return NULL;
192 wpa_snprintf_hex(buf, 2 * len + 1, value, len);
193
194 return buf;
195}
196
197
198static char * wpa_config_write_string(const u8 *value, size_t len)
199{
200 if (value == NULL)
201 return NULL;
202
203 if (is_hex(value, len))
204 return wpa_config_write_string_hex(value, len);
205 else
206 return wpa_config_write_string_ascii(value, len);
207}
208
209
210static char * wpa_config_write_str(const struct parse_data *data,
211 struct wpa_ssid *ssid)
212{
213 size_t len;
214 char **src;
215
216 src = (char **) (((u8 *) ssid) + (long) data->param1);
217 if (*src == NULL)
218 return NULL;
219
220 if (data->param2)
221 len = *((size_t *) (((u8 *) ssid) + (long) data->param2));
222 else
223 len = os_strlen(*src);
224
225 return wpa_config_write_string((const u8 *) *src, len);
226}
227#endif /* NO_CONFIG_WRITE */
228
229
230static int wpa_config_parse_int(const struct parse_data *data,
231 struct wpa_ssid *ssid,
232 int line, const char *value)
233{
234 int *dst;
235
236 dst = (int *) (((u8 *) ssid) + (long) data->param1);
237 *dst = atoi(value);
238 wpa_printf(MSG_MSGDUMP, "%s=%d (0x%x)", data->name, *dst, *dst);
239
240 if (data->param3 && *dst < (long) data->param3) {
241 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
242 "min_value=%ld)", line, data->name, *dst,
243 (long) data->param3);
244 *dst = (long) data->param3;
245 return -1;
246 }
247
248 if (data->param4 && *dst > (long) data->param4) {
249 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
250 "max_value=%ld)", line, data->name, *dst,
251 (long) data->param4);
252 *dst = (long) data->param4;
253 return -1;
254 }
255
256 return 0;
257}
258
259
260#ifndef NO_CONFIG_WRITE
261static char * wpa_config_write_int(const struct parse_data *data,
262 struct wpa_ssid *ssid)
263{
264 int *src, res;
265 char *value;
266
267 src = (int *) (((u8 *) ssid) + (long) data->param1);
268
269 value = os_malloc(20);
270 if (value == NULL)
271 return NULL;
272 res = os_snprintf(value, 20, "%d", *src);
273 if (res < 0 || res >= 20) {
274 os_free(value);
275 return NULL;
276 }
277 value[20 - 1] = '\0';
278 return value;
279}
280#endif /* NO_CONFIG_WRITE */
281
282
283static int wpa_config_parse_bssid(const struct parse_data *data,
284 struct wpa_ssid *ssid, int line,
285 const char *value)
286{
287 if (hwaddr_aton(value, ssid->bssid)) {
288 wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID '%s'.",
289 line, value);
290 return -1;
291 }
292 ssid->bssid_set = 1;
293 wpa_hexdump(MSG_MSGDUMP, "BSSID", ssid->bssid, ETH_ALEN);
294 return 0;
295}
296
297
298#ifndef NO_CONFIG_WRITE
299static char * wpa_config_write_bssid(const struct parse_data *data,
300 struct wpa_ssid *ssid)
301{
302 char *value;
303 int res;
304
305 if (!ssid->bssid_set)
306 return NULL;
307
308 value = os_malloc(20);
309 if (value == NULL)
310 return NULL;
311 res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->bssid));
312 if (res < 0 || res >= 20) {
313 os_free(value);
314 return NULL;
315 }
316 value[20 - 1] = '\0';
317 return value;
318}
319#endif /* NO_CONFIG_WRITE */
320
321
322static int wpa_config_parse_psk(const struct parse_data *data,
323 struct wpa_ssid *ssid, int line,
324 const char *value)
325{
326 if (*value == '"') {
327#ifndef CONFIG_NO_PBKDF2
328 const char *pos;
329 size_t len;
330
331 value++;
332 pos = os_strrchr(value, '"');
333 if (pos)
334 len = pos - value;
335 else
336 len = os_strlen(value);
337 if (len < 8 || len > 63) {
338 wpa_printf(MSG_ERROR, "Line %d: Invalid passphrase "
339 "length %lu (expected: 8..63) '%s'.",
340 line, (unsigned long) len, value);
341 return -1;
342 }
343 wpa_hexdump_ascii_key(MSG_MSGDUMP, "PSK (ASCII passphrase)",
344 (u8 *) value, len);
345 if (ssid->passphrase && os_strlen(ssid->passphrase) == len &&
346 os_memcmp(ssid->passphrase, value, len) == 0)
347 return 0;
348 ssid->psk_set = 0;
349 os_free(ssid->passphrase);
350 ssid->passphrase = os_malloc(len + 1);
351 if (ssid->passphrase == NULL)
352 return -1;
353 os_memcpy(ssid->passphrase, value, len);
354 ssid->passphrase[len] = '\0';
355 return 0;
356#else /* CONFIG_NO_PBKDF2 */
357 wpa_printf(MSG_ERROR, "Line %d: ASCII passphrase not "
358 "supported.", line);
359 return -1;
360#endif /* CONFIG_NO_PBKDF2 */
361 }
362
363 if (hexstr2bin(value, ssid->psk, PMK_LEN) ||
364 value[PMK_LEN * 2] != '\0') {
365 wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.",
366 line, value);
367 return -1;
368 }
369
370 os_free(ssid->passphrase);
371 ssid->passphrase = NULL;
372
373 ssid->psk_set = 1;
374 wpa_hexdump_key(MSG_MSGDUMP, "PSK", ssid->psk, PMK_LEN);
375 return 0;
376}
377
378
379#ifndef NO_CONFIG_WRITE
380static char * wpa_config_write_psk(const struct parse_data *data,
381 struct wpa_ssid *ssid)
382{
383 if (ssid->passphrase)
384 return wpa_config_write_string_ascii(
385 (const u8 *) ssid->passphrase,
386 os_strlen(ssid->passphrase));
387
388 if (ssid->psk_set)
389 return wpa_config_write_string_hex(ssid->psk, PMK_LEN);
390
391 return NULL;
392}
393#endif /* NO_CONFIG_WRITE */
394
395
396static int wpa_config_parse_proto(const struct parse_data *data,
397 struct wpa_ssid *ssid, int line,
398 const char *value)
399{
400 int val = 0, last, errors = 0;
401 char *start, *end, *buf;
402
403 buf = os_strdup(value);
404 if (buf == NULL)
405 return -1;
406 start = buf;
407
408 while (*start != '\0') {
409 while (*start == ' ' || *start == '\t')
410 start++;
411 if (*start == '\0')
412 break;
413 end = start;
414 while (*end != ' ' && *end != '\t' && *end != '\0')
415 end++;
416 last = *end == '\0';
417 *end = '\0';
418 if (os_strcmp(start, "WPA") == 0)
419 val |= WPA_PROTO_WPA;
420 else if (os_strcmp(start, "RSN") == 0 ||
421 os_strcmp(start, "WPA2") == 0)
422 val |= WPA_PROTO_RSN;
423 else {
424 wpa_printf(MSG_ERROR, "Line %d: invalid proto '%s'",
425 line, start);
426 errors++;
427 }
428
429 if (last)
430 break;
431 start = end + 1;
432 }
433 os_free(buf);
434
435 if (val == 0) {
436 wpa_printf(MSG_ERROR,
437 "Line %d: no proto values configured.", line);
438 errors++;
439 }
440
441 wpa_printf(MSG_MSGDUMP, "proto: 0x%x", val);
442 ssid->proto = val;
443 return errors ? -1 : 0;
444}
445
446
447#ifndef NO_CONFIG_WRITE
448static char * wpa_config_write_proto(const struct parse_data *data,
449 struct wpa_ssid *ssid)
450{
451 int first = 1, ret;
452 char *buf, *pos, *end;
453
454 pos = buf = os_zalloc(10);
455 if (buf == NULL)
456 return NULL;
457 end = buf + 10;
458
459 if (ssid->proto & WPA_PROTO_WPA) {
460 ret = os_snprintf(pos, end - pos, "%sWPA", first ? "" : " ");
461 if (ret < 0 || ret >= end - pos)
462 return buf;
463 pos += ret;
464 first = 0;
465 }
466
467 if (ssid->proto & WPA_PROTO_RSN) {
468 ret = os_snprintf(pos, end - pos, "%sRSN", first ? "" : " ");
469 if (ret < 0 || ret >= end - pos)
470 return buf;
471 pos += ret;
472 first = 0;
473 }
474
475 return buf;
476}
477#endif /* NO_CONFIG_WRITE */
478
479
480static int wpa_config_parse_key_mgmt(const struct parse_data *data,
481 struct wpa_ssid *ssid, int line,
482 const char *value)
483{
484 int val = 0, last, errors = 0;
485 char *start, *end, *buf;
486
487 buf = os_strdup(value);
488 if (buf == NULL)
489 return -1;
490 start = buf;
491
492 while (*start != '\0') {
493 while (*start == ' ' || *start == '\t')
494 start++;
495 if (*start == '\0')
496 break;
497 end = start;
498 while (*end != ' ' && *end != '\t' && *end != '\0')
499 end++;
500 last = *end == '\0';
501 *end = '\0';
502 if (os_strcmp(start, "WPA-PSK") == 0)
503 val |= WPA_KEY_MGMT_PSK;
504 else if (os_strcmp(start, "WPA-EAP") == 0)
505 val |= WPA_KEY_MGMT_IEEE8021X;
506 else if (os_strcmp(start, "IEEE8021X") == 0)
507 val |= WPA_KEY_MGMT_IEEE8021X_NO_WPA;
508 else if (os_strcmp(start, "NONE") == 0)
509 val |= WPA_KEY_MGMT_NONE;
510 else if (os_strcmp(start, "WPA-NONE") == 0)
511 val |= WPA_KEY_MGMT_WPA_NONE;
512#ifdef CONFIG_IEEE80211R
513 else if (os_strcmp(start, "FT-PSK") == 0)
514 val |= WPA_KEY_MGMT_FT_PSK;
515 else if (os_strcmp(start, "FT-EAP") == 0)
516 val |= WPA_KEY_MGMT_FT_IEEE8021X;
517#endif /* CONFIG_IEEE80211R */
56586197
JM		 518#ifdef CONFIG_IEEE80211W
519 else if (os_strcmp(start, "WPA-PSK-SHA256") == 0)
520 val |= WPA_KEY_MGMT_PSK_SHA256;
521 else if (os_strcmp(start, "WPA-EAP-SHA256") == 0)
522 val |= WPA_KEY_MGMT_IEEE8021X_SHA256;
523#endif /* CONFIG_IEEE80211W */
ad08c363
JM		 524#ifdef CONFIG_WPS
525 else if (os_strcmp(start, "WPS") == 0)
526 val |= WPA_KEY_MGMT_WPS;
527#endif /* CONFIG_WPS */
6fc6879b
JM		 528 else {
529 wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
530 line, start);
531 errors++;
532 }
533
534 if (last)
535 break;
536 start = end + 1;
537 }
538 os_free(buf);
539
540 if (val == 0) {
541 wpa_printf(MSG_ERROR,
542 "Line %d: no key_mgmt values configured.", line);
543 errors++;
544 }
545
546 wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val);
547 ssid->key_mgmt = val;
548 return errors ? -1 : 0;
549}
550
551
552#ifndef NO_CONFIG_WRITE
553static char * wpa_config_write_key_mgmt(const struct parse_data *data,
554 struct wpa_ssid *ssid)
555{
556 char *buf, *pos, *end;
557 int ret;
558
559 pos = buf = os_zalloc(50);
560 if (buf == NULL)
561 return NULL;
562 end = buf + 50;
563
564 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
565 ret = os_snprintf(pos, end - pos, "%sWPA-PSK",
566 pos == buf ? "" : " ");
567 if (ret < 0 || ret >= end - pos) {
568 end[-1] = '\0';
569 return buf;
570 }
571 pos += ret;
572 }
573
574 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
575 ret = os_snprintf(pos, end - pos, "%sWPA-EAP",
576 pos == buf ? "" : " ");
577 if (ret < 0 || ret >= end - pos) {
578 end[-1] = '\0';
579 return buf;
580 }
581 pos += ret;
582 }
583
584 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
585 ret = os_snprintf(pos, end - pos, "%sIEEE8021X",
586 pos == buf ? "" : " ");
587 if (ret < 0 || ret >= end - pos) {
588 end[-1] = '\0';
589 return buf;
590 }
591 pos += ret;
592 }
593
594 if (ssid->key_mgmt & WPA_KEY_MGMT_NONE) {
595 ret = os_snprintf(pos, end - pos, "%sNONE",
596 pos == buf ? "" : " ");
597 if (ret < 0 || ret >= end - pos) {
598 end[-1] = '\0';
599 return buf;
600 }
601 pos += ret;
602 }
603
604 if (ssid->key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
605 ret = os_snprintf(pos, end - pos, "%sWPA-NONE",
606 pos == buf ? "" : " ");
607 if (ret < 0 || ret >= end - pos) {
608 end[-1] = '\0';
609 return buf;
610 }
611 pos += ret;
612 }
613
614#ifdef CONFIG_IEEE80211R
615 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_PSK)
616 pos += os_snprintf(pos, end - pos, "%sFT-PSK",
617 pos == buf ? "" : " ");
618
619 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X)
620 pos += os_snprintf(pos, end - pos, "%sFT-EAP",
621 pos == buf ? "" : " ");
622#endif /* CONFIG_IEEE80211R */
623
56586197
JM		 624#ifdef CONFIG_IEEE80211W
625 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK_SHA256)
626 pos += os_snprintf(pos, end - pos, "%sWPA-PSK-SHA256",
627 pos == buf ? "" : " ");
628
629 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256)
630 pos += os_snprintf(pos, end - pos, "%sWPA-EAP-SHA256",
631 pos == buf ? "" : " ");
632#endif /* CONFIG_IEEE80211W */
633
728fae16
JM		 634#ifdef CONFIG_WPS
635 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
636 pos += os_snprintf(pos, end - pos, "%sWPS",
637 pos == buf ? "" : " ");
638#endif /* CONFIG_WPS */
639
6fc6879b
JM		 640 return buf;
641}
642#endif /* NO_CONFIG_WRITE */
643
644
645static int wpa_config_parse_cipher(int line, const char *value)
646{
647 int val = 0, last;
648 char *start, *end, *buf;
649
650 buf = os_strdup(value);
651 if (buf == NULL)
652 return -1;
653 start = buf;
654
655 while (*start != '\0') {
656 while (*start == ' ' || *start == '\t')
657 start++;
658 if (*start == '\0')
659 break;
660 end = start;
661 while (*end != ' ' && *end != '\t' && *end != '\0')
662 end++;
663 last = *end == '\0';
664 *end = '\0';
665 if (os_strcmp(start, "CCMP") == 0)
666 val |= WPA_CIPHER_CCMP;
667 else if (os_strcmp(start, "TKIP") == 0)
668 val |= WPA_CIPHER_TKIP;
669 else if (os_strcmp(start, "WEP104") == 0)
670 val |= WPA_CIPHER_WEP104;
671 else if (os_strcmp(start, "WEP40") == 0)
672 val |= WPA_CIPHER_WEP40;
673 else if (os_strcmp(start, "NONE") == 0)
674 val |= WPA_CIPHER_NONE;
675 else {
676 wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
677 line, start);
678 os_free(buf);
679 return -1;
680 }
681
682 if (last)
683 break;
684 start = end + 1;
685 }
686 os_free(buf);
687
688 if (val == 0) {
689 wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
690 line);
691 return -1;
692 }
693 return val;
694}
695
696
697#ifndef NO_CONFIG_WRITE
698static char * wpa_config_write_cipher(int cipher)
699{
700 char *buf, *pos, *end;
701 int ret;
702
703 pos = buf = os_zalloc(50);
704 if (buf == NULL)
705 return NULL;
706 end = buf + 50;
707
708 if (cipher & WPA_CIPHER_CCMP) {
709 ret = os_snprintf(pos, end - pos, "%sCCMP",
710 pos == buf ? "" : " ");
711 if (ret < 0 || ret >= end - pos) {
712 end[-1] = '\0';
713 return buf;
714 }
715 pos += ret;
716 }
717
718 if (cipher & WPA_CIPHER_TKIP) {
719 ret = os_snprintf(pos, end - pos, "%sTKIP",
720 pos == buf ? "" : " ");
721 if (ret < 0 || ret >= end - pos) {
722 end[-1] = '\0';
723 return buf;
724 }
725 pos += ret;
726 }
727
728 if (cipher & WPA_CIPHER_WEP104) {
729 ret = os_snprintf(pos, end - pos, "%sWEP104",
730 pos == buf ? "" : " ");
731 if (ret < 0 || ret >= end - pos) {
732 end[-1] = '\0';
733 return buf;
734 }
735 pos += ret;
736 }
737
738 if (cipher & WPA_CIPHER_WEP40) {
739 ret = os_snprintf(pos, end - pos, "%sWEP40",
740 pos == buf ? "" : " ");
741 if (ret < 0 || ret >= end - pos) {
742 end[-1] = '\0';
743 return buf;
744 }
745 pos += ret;
746 }
747
748 if (cipher & WPA_CIPHER_NONE) {
749 ret = os_snprintf(pos, end - pos, "%sNONE",
750 pos == buf ? "" : " ");
751 if (ret < 0 || ret >= end - pos) {
752 end[-1] = '\0';
753 return buf;
754 }
755 pos += ret;
756 }
757
758 return buf;
759}
760#endif /* NO_CONFIG_WRITE */
761
762
763static int wpa_config_parse_pairwise(const struct parse_data *data,
764 struct wpa_ssid *ssid, int line,
765 const char *value)
766{
767 int val;
768 val = wpa_config_parse_cipher(line, value);
769 if (val == -1)
770 return -1;
771 if (val & ~(WPA_CIPHER_CCMP | WPA_CIPHER_TKIP | WPA_CIPHER_NONE)) {
772 wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
773 "(0x%x).", line, val);
774 return -1;
775 }
776
777 wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
778 ssid->pairwise_cipher = val;
779 return 0;
780}
781
782
783#ifndef NO_CONFIG_WRITE
784static char * wpa_config_write_pairwise(const struct parse_data *data,
785 struct wpa_ssid *ssid)
786{
787 return wpa_config_write_cipher(ssid->pairwise_cipher);
788}
789#endif /* NO_CONFIG_WRITE */
790
791
792static int wpa_config_parse_group(const struct parse_data *data,
793 struct wpa_ssid *ssid, int line,
794 const char *value)
795{
796 int val;
797 val = wpa_config_parse_cipher(line, value);
798 if (val == -1)
799 return -1;
800 if (val & ~(WPA_CIPHER_CCMP | WPA_CIPHER_TKIP | WPA_CIPHER_WEP104 |
801 WPA_CIPHER_WEP40)) {
802 wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
803 "(0x%x).", line, val);
804 return -1;
805 }
806
807 wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
808 ssid->group_cipher = val;
809 return 0;
810}
811
812
813#ifndef NO_CONFIG_WRITE
814static char * wpa_config_write_group(const struct parse_data *data,
815 struct wpa_ssid *ssid)
816{
817 return wpa_config_write_cipher(ssid->group_cipher);
818}
819#endif /* NO_CONFIG_WRITE */
820
821
822static int wpa_config_parse_auth_alg(const struct parse_data *data,
823 struct wpa_ssid *ssid, int line,
824 const char *value)
825{
826 int val = 0, last, errors = 0;
827 char *start, *end, *buf;
828
829 buf = os_strdup(value);
830 if (buf == NULL)
831 return -1;
832 start = buf;
833
834 while (*start != '\0') {
835 while (*start == ' ' || *start == '\t')
836 start++;
837 if (*start == '\0')
838 break;
839 end = start;
840 while (*end != ' ' && *end != '\t' && *end != '\0')
841 end++;
842 last = *end == '\0';
843 *end = '\0';
844 if (os_strcmp(start, "OPEN") == 0)
845 val |= WPA_AUTH_ALG_OPEN;
846 else if (os_strcmp(start, "SHARED") == 0)
847 val |= WPA_AUTH_ALG_SHARED;
848 else if (os_strcmp(start, "LEAP") == 0)
849 val |= WPA_AUTH_ALG_LEAP;
850 else {
851 wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
852 line, start);
853 errors++;
854 }
855
856 if (last)
857 break;
858 start = end + 1;
859 }
860 os_free(buf);
861
862 if (val == 0) {
863 wpa_printf(MSG_ERROR,
864 "Line %d: no auth_alg values configured.", line);
865 errors++;
866 }
867
868 wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
869 ssid->auth_alg = val;
870 return errors ? -1 : 0;
871}
872
873
874#ifndef NO_CONFIG_WRITE
875static char * wpa_config_write_auth_alg(const struct parse_data *data,
876 struct wpa_ssid *ssid)
877{
878 char *buf, *pos, *end;
879 int ret;
880
881 pos = buf = os_zalloc(30);
882 if (buf == NULL)
883 return NULL;
884 end = buf + 30;
885
886 if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) {
887 ret = os_snprintf(pos, end - pos, "%sOPEN",
888 pos == buf ? "" : " ");
889 if (ret < 0 || ret >= end - pos) {
890 end[-1] = '\0';
891 return buf;
892 }
893 pos += ret;
894 }
895
896 if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) {
897 ret = os_snprintf(pos, end - pos, "%sSHARED",
898 pos == buf ? "" : " ");
899 if (ret < 0 || ret >= end - pos) {
900 end[-1] = '\0';
901 return buf;
902 }
903 pos += ret;
904 }
905
906 if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) {
907 ret = os_snprintf(pos, end - pos, "%sLEAP",
908 pos == buf ? "" : " ");
909 if (ret < 0 || ret >= end - pos) {
910 end[-1] = '\0';
911 return buf;
912 }
913 pos += ret;
914 }
915
916 return buf;
917}
918#endif /* NO_CONFIG_WRITE */
919
920
b766a9a2
JM		 921static int * wpa_config_parse_freqs(const struct parse_data *data,
922 struct wpa_ssid *ssid, int line,
923 const char *value)
d3a98225
JM		 924{
925 int *freqs;
926 size_t used, len;
927 const char *pos;
928
929 used = 0;
930 len = 10;
931 freqs = os_zalloc((len + 1) * sizeof(int));
932 if (freqs == NULL)
b766a9a2 933 return NULL;
d3a98225
JM		 934
935 pos = value;
936 while (pos) {
937 while (*pos == ' ')
938 pos++;
939 if (used == len) {
940 int *n;
941 size_t i;
942 n = os_realloc(freqs, (len * 2 + 1) * sizeof(int));
943 if (n == NULL) {
944 os_free(freqs);
b766a9a2 945 return NULL;
d3a98225
JM		 946 }
947 for (i = len; i <= len * 2; i++)
948 n[i] = 0;
949 freqs = n;
950 len *= 2;
951 }
952
953 freqs[used] = atoi(pos);
954 if (freqs[used] == 0)
955 break;
956 used++;
957 pos = os_strchr(pos + 1, ' ');
958 }
959
b766a9a2
JM		 960 return freqs;
961}
962
963
964static int wpa_config_parse_scan_freq(const struct parse_data *data,
965 struct wpa_ssid *ssid, int line,
966 const char *value)
967{
968 int *freqs;
969
970 freqs = wpa_config_parse_freqs(data, ssid, line, value);
971 if (freqs == NULL)
972 return -1;
d3a98225
JM		 973 os_free(ssid->scan_freq);
974 ssid->scan_freq = freqs;
975
976 return 0;
977}
978
979
b766a9a2
JM		 980static int wpa_config_parse_freq_list(const struct parse_data *data,
981 struct wpa_ssid *ssid, int line,
982 const char *value)
983{
984 int *freqs;
985
986 freqs = wpa_config_parse_freqs(data, ssid, line, value);
987 if (freqs == NULL)
988 return -1;
989 os_free(ssid->freq_list);
990 ssid->freq_list = freqs;
991
992 return 0;
993}
994
995
d3a98225 996#ifndef NO_CONFIG_WRITE
b766a9a2
JM		 997static char * wpa_config_write_freqs(const struct parse_data *data,
998 const int *freqs)
d3a98225
JM		 999{
1000 char *buf, *pos, *end;
1001 int i, ret;
1002 size_t count;
1003
b766a9a2 1004 if (freqs == NULL)
d3a98225
JM		 1005 return NULL;
1006
1007 count = 0;
b766a9a2 1008 for (i = 0; freqs[i]; i++)
d3a98225
JM		 1009 count++;
1010
1011 pos = buf = os_zalloc(10 * count + 1);
1012 if (buf == NULL)
1013 return NULL;
1014 end = buf + 10 * count + 1;
1015
b766a9a2 1016 for (i = 0; freqs[i]; i++) {
d3a98225 1017 ret = os_snprintf(pos, end - pos, "%s%u",
b766a9a2 1018 i == 0 ? "" : " ", freqs[i]);
d3a98225
JM		 1019 if (ret < 0 || ret >= end - pos) {
1020 end[-1] = '\0';
1021 return buf;
1022 }
1023 pos += ret;
1024 }
1025
1026 return buf;
1027}
b766a9a2
JM		 1028
1029
1030static char * wpa_config_write_scan_freq(const struct parse_data *data,
1031 struct wpa_ssid *ssid)
1032{
1033 return wpa_config_write_freqs(data, ssid->scan_freq);
1034}
1035
1036
1037static char * wpa_config_write_freq_list(const struct parse_data *data,
1038 struct wpa_ssid *ssid)
1039{
1040 return wpa_config_write_freqs(data, ssid->freq_list);
1041}
d3a98225
JM		 1042#endif /* NO_CONFIG_WRITE */
1043
1044
6fc6879b
JM		 1045#ifdef IEEE8021X_EAPOL
1046static int wpa_config_parse_eap(const struct parse_data *data,
1047 struct wpa_ssid *ssid, int line,
1048 const char *value)
1049{
1050 int last, errors = 0;
1051 char *start, *end, *buf;
1052 struct eap_method_type *methods = NULL, *tmp;
1053 size_t num_methods = 0;
1054
1055 buf = os_strdup(value);
1056 if (buf == NULL)
1057 return -1;
1058 start = buf;
1059
1060 while (*start != '\0') {
1061 while (*start == ' ' || *start == '\t')
1062 start++;
1063 if (*start == '\0')
1064 break;
1065 end = start;
1066 while (*end != ' ' && *end != '\t' && *end != '\0')
1067 end++;
1068 last = *end == '\0';
1069 *end = '\0';
1070 tmp = methods;
1071 methods = os_realloc(methods,
1072 (num_methods + 1) * sizeof(*methods));
1073 if (methods == NULL) {
1074 os_free(tmp);
1075 os_free(buf);
1076 return -1;
1077 }
1078 methods[num_methods].method = eap_peer_get_type(
1079 start, &methods[num_methods].vendor);
1080 if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1081 methods[num_methods].method == EAP_TYPE_NONE) {
1082 wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
1083 "'%s'", line, start);
1084 wpa_printf(MSG_ERROR, "You may need to add support for"
1085 " this EAP method during wpa_supplicant\n"
1086 "build time configuration.\n"
1087 "See README for more information.");
1088 errors++;
1089 } else if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1090 methods[num_methods].method == EAP_TYPE_LEAP)
1091 ssid->leap++;
1092 else
1093 ssid->non_leap++;
1094 num_methods++;
1095 if (last)
1096 break;
1097 start = end + 1;
1098 }
1099 os_free(buf);
1100
1101 tmp = methods;
1102 methods = os_realloc(methods, (num_methods + 1) * sizeof(*methods));
1103 if (methods == NULL) {
1104 os_free(tmp);
1105 return -1;
1106 }
1107 methods[num_methods].vendor = EAP_VENDOR_IETF;
1108 methods[num_methods].method = EAP_TYPE_NONE;
1109 num_methods++;
1110
1111 wpa_hexdump(MSG_MSGDUMP, "eap methods",
1112 (u8 *) methods, num_methods * sizeof(*methods));
1113 ssid->eap.eap_methods = methods;
1114 return errors ? -1 : 0;
1115}
1116
1117
1118static char * wpa_config_write_eap(const struct parse_data *data,
1119 struct wpa_ssid *ssid)
1120{
1121 int i, ret;
1122 char *buf, *pos, *end;
1123 const struct eap_method_type *eap_methods = ssid->eap.eap_methods;
1124 const char *name;
1125
1126 if (eap_methods == NULL)
1127 return NULL;
1128
1129 pos = buf = os_zalloc(100);
1130 if (buf == NULL)
1131 return NULL;
1132 end = buf + 100;
1133
1134 for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF ||
1135 eap_methods[i].method != EAP_TYPE_NONE; i++) {
1136 name = eap_get_name(eap_methods[i].vendor,
1137 eap_methods[i].method);
1138 if (name) {
1139 ret = os_snprintf(pos, end - pos, "%s%s",
1140 pos == buf ? "" : " ", name);
1141 if (ret < 0 || ret >= end - pos)
1142 break;
1143 pos += ret;
1144 }
1145 }
1146
1147 end[-1] = '\0';
1148
1149 return buf;
1150}
1151
1152
1153static int wpa_config_parse_password(const struct parse_data *data,
1154 struct wpa_ssid *ssid, int line,
1155 const char *value)
1156{
1157 u8 *hash;
1158
b56c0546
JM		 1159 if (os_strcmp(value, "NULL") == 0) {
1160 wpa_printf(MSG_DEBUG, "Unset configuration string 'password'");
1161 os_free(ssid->eap.password);
1162 ssid->eap.password = NULL;
1163 ssid->eap.password_len = 0;
1164 return 0;
1165 }
1166
6fc6879b
JM		 1167 if (os_strncmp(value, "hash:", 5) != 0) {
1168 char *tmp;
1169 size_t res_len;
1170
1171 tmp = wpa_config_parse_string(value, &res_len);
1172 if (tmp == NULL) {
1173 wpa_printf(MSG_ERROR, "Line %d: failed to parse "
1174 "password.", line);
1175 return -1;
1176 }
556f5a2a
HS		 1177 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
1178 (u8 *) tmp, res_len);
6fc6879b
JM		 1179
1180 os_free(ssid->eap.password);
1181 ssid->eap.password = (u8 *) tmp;
1182 ssid->eap.password_len = res_len;
1183 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1184
1185 return 0;
1186 }
1187
1188
1189 /* NtPasswordHash: hash:<32 hex digits> */
1190 if (os_strlen(value + 5) != 2 * 16) {
1191 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length "
1192 "(expected 32 hex digits)", line);
1193 return -1;
1194 }
1195
1196 hash = os_malloc(16);
1197 if (hash == NULL)
1198 return -1;
1199
1200 if (hexstr2bin(value + 5, hash, 16)) {
1201 os_free(hash);
1202 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line);
1203 return -1;
1204 }
1205
1206 wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16);
1207
1208 os_free(ssid->eap.password);
1209 ssid->eap.password = hash;
1210 ssid->eap.password_len = 16;
1211 ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1212
1213 return 0;
1214}
1215
1216
1217static char * wpa_config_write_password(const struct parse_data *data,
1218 struct wpa_ssid *ssid)
1219{
1220 char *buf;
1221
1222 if (ssid->eap.password == NULL)
1223 return NULL;
1224
1225 if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1226 return wpa_config_write_string(
1227 ssid->eap.password, ssid->eap.password_len);
1228 }
1229
1230 buf = os_malloc(5 + 32 + 1);
1231 if (buf == NULL)
1232 return NULL;
1233
1234 os_memcpy(buf, "hash:", 5);
1235 wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16);
1236
1237 return buf;
1238}
1239#endif /* IEEE8021X_EAPOL */
1240
1241
1242static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
1243 const char *value, int idx)
1244{
1245 char *buf, title[20];
1246 int res;
1247
1248 buf = wpa_config_parse_string(value, len);
1249 if (buf == NULL) {
1250 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
1251 line, idx, value);
1252 return -1;
1253 }
1254 if (*len > MAX_WEP_KEY_LEN) {
1255 wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
1256 line, idx, value);
1257 os_free(buf);
1258 return -1;
1259 }
1260 os_memcpy(key, buf, *len);
1261 os_free(buf);
1262 res = os_snprintf(title, sizeof(title), "wep_key%d", idx);
1263 if (res >= 0 && (size_t) res < sizeof(title))
1264 wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
1265 return 0;
1266}
1267
1268
1269static int wpa_config_parse_wep_key0(const struct parse_data *data,
1270 struct wpa_ssid *ssid, int line,
1271 const char *value)
1272{
1273 return wpa_config_parse_wep_key(ssid->wep_key[0],
1274 &ssid->wep_key_len[0], line,
1275 value, 0);
1276}
1277
1278
1279static int wpa_config_parse_wep_key1(const struct parse_data *data,
1280 struct wpa_ssid *ssid, int line,
1281 const char *value)
1282{
1283 return wpa_config_parse_wep_key(ssid->wep_key[1],
1284 &ssid->wep_key_len[1], line,
1285 value, 1);
1286}
1287
1288
1289static int wpa_config_parse_wep_key2(const struct parse_data *data,
1290 struct wpa_ssid *ssid, int line,
1291 const char *value)
1292{
1293 return wpa_config_parse_wep_key(ssid->wep_key[2],
1294 &ssid->wep_key_len[2], line,
1295 value, 2);
1296}
1297
1298
1299static int wpa_config_parse_wep_key3(const struct parse_data *data,
1300 struct wpa_ssid *ssid, int line,
1301 const char *value)
1302{
1303 return wpa_config_parse_wep_key(ssid->wep_key[3],
1304 &ssid->wep_key_len[3], line,
1305 value, 3);
1306}
1307
1308
1309#ifndef NO_CONFIG_WRITE
1310static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx)
1311{
1312 if (ssid->wep_key_len[idx] == 0)
1313 return NULL;
1314 return wpa_config_write_string(ssid->wep_key[idx],
1315 ssid->wep_key_len[idx]);
1316}
1317
1318
1319static char * wpa_config_write_wep_key0(const struct parse_data *data,
1320 struct wpa_ssid *ssid)
1321{
1322 return wpa_config_write_wep_key(ssid, 0);
1323}
1324
1325
1326static char * wpa_config_write_wep_key1(const struct parse_data *data,
1327 struct wpa_ssid *ssid)
1328{
1329 return wpa_config_write_wep_key(ssid, 1);
1330}
1331
1332
1333static char * wpa_config_write_wep_key2(const struct parse_data *data,
1334 struct wpa_ssid *ssid)
1335{
1336 return wpa_config_write_wep_key(ssid, 2);
1337}
1338
1339
1340static char * wpa_config_write_wep_key3(const struct parse_data *data,
1341 struct wpa_ssid *ssid)
1342{
1343 return wpa_config_write_wep_key(ssid, 3);
1344}
1345#endif /* NO_CONFIG_WRITE */
1346
1347
1348/* Helper macros for network block parser */
1349
1350#ifdef OFFSET
1351#undef OFFSET
1352#endif /* OFFSET */
1353/* OFFSET: Get offset of a variable within the wpa_ssid structure */
1354#define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
1355
1356/* STR: Define a string variable for an ASCII string; f = field name */
1357#ifdef NO_CONFIG_WRITE
1358#define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
1359#define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
1360#else /* NO_CONFIG_WRITE */
1361#define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
1362#define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
1363#endif /* NO_CONFIG_WRITE */
1364#define STR(f) _STR(f), NULL, NULL, NULL, 0
1365#define STRe(f) _STRe(f), NULL, NULL, NULL, 0
1366#define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
1367#define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
1368
1369/* STR_LEN: Define a string variable with a separate variable for storing the
1370 * data length. Unlike STR(), this can be used to store arbitrary binary data
1371 * (i.e., even nul termination character). */
1372#define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
1373#define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
1374#define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
1375#define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
1376#define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
1377
1378/* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
1379 * explicitly specified. */
1380#define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
1381#define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
1382#define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
1383
1384#ifdef NO_CONFIG_WRITE
1385#define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
1386#define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
1387#else /* NO_CONFIG_WRITE */
1388#define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1389 OFFSET(f), (void *) 0
1390#define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1391 OFFSET(eap.f), (void *) 0
1392#endif /* NO_CONFIG_WRITE */
1393
1394/* INT: Define an integer variable */
1395#define INT(f) _INT(f), NULL, NULL, 0
1396#define INTe(f) _INTe(f), NULL, NULL, 0
1397
1398/* INT_RANGE: Define an integer variable with allowed value range */
1399#define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
1400
1401/* FUNC: Define a configuration variable that uses a custom function for
1402 * parsing and writing the value. */
1403#ifdef NO_CONFIG_WRITE
1404#define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
1405#else /* NO_CONFIG_WRITE */
1406#define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
1407 NULL, NULL, NULL, NULL
1408#endif /* NO_CONFIG_WRITE */
1409#define FUNC(f) _FUNC(f), 0
1410#define FUNC_KEY(f) _FUNC(f), 1
1411
1412/*
1413 * Table of network configuration variables. This table is used to parse each
1414 * network configuration variable, e.g., each line in wpa_supplicant.conf file
1415 * that is inside a network block.
1416 *
1417 * This table is generated using the helper macros defined above and with
1418 * generous help from the C pre-processor. The field name is stored as a string
1419 * into .name and for STR and INT types, the offset of the target buffer within
1420 * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
1421 * offset to the field containing the length of the configuration variable.
1422 * .param3 and .param4 can be used to mark the allowed range (length for STR
1423 * and value for INT).
1424 *
1425 * For each configuration line in wpa_supplicant.conf, the parser goes through
1426 * this table and select the entry that matches with the field name. The parser
1427 * function (.parser) is then called to parse the actual value of the field.
1428 *
1429 * This kind of mechanism makes it easy to add new configuration parameters,
1430 * since only one line needs to be added into this table and into the
1431 * struct wpa_ssid definition if the new variable is either a string or
1432 * integer. More complex types will need to use their own parser and writer
1433 * functions.
1434 */
1435static const struct parse_data ssid_fields[] = {
1436 { STR_RANGE(ssid, 0, MAX_SSID_LEN) },
1437 { INT_RANGE(scan_ssid, 0, 1) },
1438 { FUNC(bssid) },
1439 { FUNC_KEY(psk) },
1440 { FUNC(proto) },
1441 { FUNC(key_mgmt) },
1442 { FUNC(pairwise) },
1443 { FUNC(group) },
1444 { FUNC(auth_alg) },
d3a98225 1445 { FUNC(scan_freq) },
b766a9a2 1446 { FUNC(freq_list) },
6fc6879b
JM		 1447#ifdef IEEE8021X_EAPOL
1448 { FUNC(eap) },
1449 { STR_LENe(identity) },
1450 { STR_LENe(anonymous_identity) },
556f5a2a 1451 { FUNC_KEY(password) },
6fc6879b
JM		 1452 { STRe(ca_cert) },
1453 { STRe(ca_path) },
1454 { STRe(client_cert) },
1455 { STRe(private_key) },
1456 { STR_KEYe(private_key_passwd) },
1457 { STRe(dh_file) },
1458 { STRe(subject_match) },
1459 { STRe(altsubject_match) },
1460 { STRe(ca_cert2) },
1461 { STRe(ca_path2) },
1462 { STRe(client_cert2) },
1463 { STRe(private_key2) },
1464 { STR_KEYe(private_key2_passwd) },
1465 { STRe(dh_file2) },
1466 { STRe(subject_match2) },
1467 { STRe(altsubject_match2) },
1468 { STRe(phase1) },
1469 { STRe(phase2) },
1470 { STRe(pcsc) },
1471 { STR_KEYe(pin) },
1472 { STRe(engine_id) },
1473 { STRe(key_id) },
61ee0f71
DS		 1474 { STRe(cert_id) },
1475 { STRe(ca_cert_id) },
98842d51
CL		 1476 { STR_KEYe(pin2) },
1477 { STRe(engine2_id) },
61ee0f71
DS		 1478 { STRe(key2_id) },
1479 { STRe(cert2_id) },
1480 { STRe(ca_cert2_id) },
6fc6879b 1481 { INTe(engine) },
98842d51 1482 { INTe(engine2) },
6fc6879b
JM		 1483 { INT(eapol_flags) },
1484#endif /* IEEE8021X_EAPOL */
1485 { FUNC_KEY(wep_key0) },
1486 { FUNC_KEY(wep_key1) },
1487 { FUNC_KEY(wep_key2) },
1488 { FUNC_KEY(wep_key3) },
1489 { INT(wep_tx_keyidx) },
1490 { INT(priority) },
1491#ifdef IEEE8021X_EAPOL
1492 { INT(eap_workaround) },
1493 { STRe(pac_file) },
1494 { INTe(fragment_size) },
1495#endif /* IEEE8021X_EAPOL */
2c5d725c 1496 { INT_RANGE(mode, 0, 4) },
6fc6879b
JM		 1497 { INT_RANGE(proactive_key_caching, 0, 1) },
1498 { INT_RANGE(disabled, 0, 1) },
1499 { STR(id_str) },
1500#ifdef CONFIG_IEEE80211W
1501 { INT_RANGE(ieee80211w, 0, 2) },
1502#endif /* CONFIG_IEEE80211W */
1503 { INT_RANGE(peerkey, 0, 1) },
1504 { INT_RANGE(mixed_cell, 0, 1) },
581a8cde 1505 { INT_RANGE(frequency, 0, 10000) },
60b94c98
JM		 1506 { INT(wpa_ptk_rekey) },
1507 { STR(bgscan) },
6fc6879b
JM		 1508};
1509
1510#undef OFFSET
1511#undef _STR
1512#undef STR
1513#undef STR_KEY
1514#undef _STR_LEN
1515#undef STR_LEN
1516#undef STR_LEN_KEY
1517#undef _STR_RANGE
1518#undef STR_RANGE
1519#undef STR_RANGE_KEY
1520#undef _INT
1521#undef INT
1522#undef INT_RANGE
1523#undef _FUNC
1524#undef FUNC
1525#undef FUNC_KEY
1526#define NUM_SSID_FIELDS (sizeof(ssid_fields) / sizeof(ssid_fields[0]))
1527
1528
1529/**
1530 * wpa_config_add_prio_network - Add a network to priority lists
1531 * @config: Configuration data from wpa_config_read()
1532 * @ssid: Pointer to the network configuration to be added to the list
1533 * Returns: 0 on success, -1 on failure
1534 *
1535 * This function is used to add a network block to the priority list of
1536 * networks. This must be called for each network when reading in the full
1537 * configuration. In addition, this can be used indirectly when updating
1538 * priorities by calling wpa_config_update_prio_list().
1539 */
1540int wpa_config_add_prio_network(struct wpa_config *config,
1541 struct wpa_ssid *ssid)
1542{
1543 int prio;
1544 struct wpa_ssid *prev, **nlist;
1545
1546 /*
1547 * Add to an existing priority list if one is available for the
1548 * configured priority level for this network.
1549 */
1550 for (prio = 0; prio < config->num_prio; prio++) {
1551 prev = config->pssid[prio];
1552 if (prev->priority == ssid->priority) {
1553 while (prev->pnext)
1554 prev = prev->pnext;
1555 prev->pnext = ssid;
1556 return 0;
1557 }
1558 }
1559
1560 /* First network for this priority - add a new priority list */
1561 nlist = os_realloc(config->pssid,
1562 (config->num_prio + 1) * sizeof(struct wpa_ssid *));
1563 if (nlist == NULL)
1564 return -1;
1565
1566 for (prio = 0; prio < config->num_prio; prio++) {
1567 if (nlist[prio]->priority < ssid->priority)
1568 break;
1569 }
1570
1571 os_memmove(&nlist[prio + 1], &nlist[prio],
1572 (config->num_prio - prio) * sizeof(struct wpa_ssid *));
1573
1574 nlist[prio] = ssid;
1575 config->num_prio++;
1576 config->pssid = nlist;
1577
1578 return 0;
1579}
1580
1581
1582/**
1583 * wpa_config_update_prio_list - Update network priority list
1584 * @config: Configuration data from wpa_config_read()
1585 * Returns: 0 on success, -1 on failure
1586 *
1587 * This function is called to update the priority list of networks in the
1588 * configuration when a network is being added or removed. This is also called
1589 * if a priority for a network is changed.
1590 */
aa53509f 1591int wpa_config_update_prio_list(struct wpa_config *config)
6fc6879b
JM		 1592{
1593 struct wpa_ssid *ssid;
1594 int ret = 0;
1595
1596 os_free(config->pssid);
1597 config->pssid = NULL;
1598 config->num_prio = 0;
1599
1600 ssid = config->ssid;
1601 while (ssid) {
1602 ssid->pnext = NULL;
1603 if (wpa_config_add_prio_network(config, ssid) < 0)
1604 ret = -1;
1605 ssid = ssid->next;
1606 }
1607
1608 return ret;
1609}
1610
1611
1612#ifdef IEEE8021X_EAPOL
1613static void eap_peer_config_free(struct eap_peer_config *eap)
1614{
1615 os_free(eap->eap_methods);
1616 os_free(eap->identity);
1617 os_free(eap->anonymous_identity);
1618 os_free(eap->password);
1619 os_free(eap->ca_cert);
1620 os_free(eap->ca_path);
1621 os_free(eap->client_cert);
1622 os_free(eap->private_key);
1623 os_free(eap->private_key_passwd);
1624 os_free(eap->dh_file);
1625 os_free(eap->subject_match);
1626 os_free(eap->altsubject_match);
1627 os_free(eap->ca_cert2);
1628 os_free(eap->ca_path2);
1629 os_free(eap->client_cert2);
1630 os_free(eap->private_key2);
1631 os_free(eap->private_key2_passwd);
1632 os_free(eap->dh_file2);
1633 os_free(eap->subject_match2);
1634 os_free(eap->altsubject_match2);
1635 os_free(eap->phase1);
1636 os_free(eap->phase2);
1637 os_free(eap->pcsc);
1638 os_free(eap->pin);
1639 os_free(eap->engine_id);
1640 os_free(eap->key_id);
61ee0f71
DS		 1641 os_free(eap->cert_id);
1642 os_free(eap->ca_cert_id);
1643 os_free(eap->key2_id);
1644 os_free(eap->cert2_id);
1645 os_free(eap->ca_cert2_id);
98842d51
CL		 1646 os_free(eap->pin2);
1647 os_free(eap->engine2_id);
6fc6879b
JM		 1648 os_free(eap->otp);
1649 os_free(eap->pending_req_otp);
1650 os_free(eap->pac_file);
1651 os_free(eap->new_password);
1652}
1653#endif /* IEEE8021X_EAPOL */
1654
1655
1656/**
1657 * wpa_config_free_ssid - Free network/ssid configuration data
1658 * @ssid: Configuration data for the network
1659 *
1660 * This function frees all resources allocated for the network configuration
1661 * data.
1662 */
1663void wpa_config_free_ssid(struct wpa_ssid *ssid)
1664{
1665 os_free(ssid->ssid);
1666 os_free(ssid->passphrase);
1667#ifdef IEEE8021X_EAPOL
1668 eap_peer_config_free(&ssid->eap);
1669#endif /* IEEE8021X_EAPOL */
1670 os_free(ssid->id_str);
d3a98225 1671 os_free(ssid->scan_freq);
b766a9a2 1672 os_free(ssid->freq_list);
60b94c98 1673 os_free(ssid->bgscan);
6fc6879b
JM		 1674 os_free(ssid);
1675}
1676
1677
1678/**
1679 * wpa_config_free - Free configuration data
1680 * @config: Configuration data from wpa_config_read()
1681 *
1682 * This function frees all resources allocated for the configuration data by
1683 * wpa_config_read().
1684 */
1685void wpa_config_free(struct wpa_config *config)
1686{
1687#ifndef CONFIG_NO_CONFIG_BLOBS
1688 struct wpa_config_blob *blob, *prevblob;
1689#endif /* CONFIG_NO_CONFIG_BLOBS */
1690 struct wpa_ssid *ssid, *prev = NULL;
1691 ssid = config->ssid;
1692 while (ssid) {
1693 prev = ssid;
1694 ssid = ssid->next;
1695 wpa_config_free_ssid(prev);
1696 }
1697
1698#ifndef CONFIG_NO_CONFIG_BLOBS
1699 blob = config->blobs;
1700 prevblob = NULL;
1701 while (blob) {
1702 prevblob = blob;
1703 blob = blob->next;
1704 wpa_config_free_blob(prevblob);
1705 }
1706#endif /* CONFIG_NO_CONFIG_BLOBS */
1707
1708 os_free(config->ctrl_interface);
1709 os_free(config->ctrl_interface_group);
6fc6879b
JM		 1710 os_free(config->opensc_engine_path);
1711 os_free(config->pkcs11_engine_path);
1712 os_free(config->pkcs11_module_path);
6fc6879b 1713 os_free(config->driver_param);
3c0b7aa4
JM		 1714 os_free(config->device_name);
1715 os_free(config->manufacturer);
1716 os_free(config->model_name);
1717 os_free(config->model_number);
1718 os_free(config->serial_number);
1719 os_free(config->device_type);
c0e4dd9e 1720 os_free(config->config_methods);
6fc6879b
JM		 1721 os_free(config->pssid);
1722 os_free(config);
1723}
1724
1725
1726/**
1727 * wpa_config_get_network - Get configured network based on id
1728 * @config: Configuration data from wpa_config_read()
1729 * @id: Unique network id to search for
1730 * Returns: Network configuration or %NULL if not found
1731 */
1732struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
1733{
1734 struct wpa_ssid *ssid;
1735
1736 ssid = config->ssid;
1737 while (ssid) {
1738 if (id == ssid->id)
1739 break;
1740 ssid = ssid->next;
1741 }
1742
1743 return ssid;
1744}
1745
1746
1747/**
1748 * wpa_config_add_network - Add a new network with empty configuration
1749 * @config: Configuration data from wpa_config_read()
1750 * Returns: The new network configuration or %NULL if operation failed
1751 */
1752struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
1753{
1754 int id;
1755 struct wpa_ssid *ssid, *last = NULL;
1756
1757 id = -1;
1758 ssid = config->ssid;
1759 while (ssid) {
1760 if (ssid->id > id)
1761 id = ssid->id;
1762 last = ssid;
1763 ssid = ssid->next;
1764 }
1765 id++;
1766
1767 ssid = os_zalloc(sizeof(*ssid));
1768 if (ssid == NULL)
1769 return NULL;
1770 ssid->id = id;
1771 if (last)
1772 last->next = ssid;
1773 else
1774 config->ssid = ssid;
1775
1776 wpa_config_update_prio_list(config);
1777
1778 return ssid;
1779}
1780
1781
1782/**
1783 * wpa_config_remove_network - Remove a configured network based on id
1784 * @config: Configuration data from wpa_config_read()
1785 * @id: Unique network id to search for
1786 * Returns: 0 on success, or -1 if the network was not found
1787 */
1788int wpa_config_remove_network(struct wpa_config *config, int id)
1789{
1790 struct wpa_ssid *ssid, *prev = NULL;
1791
1792 ssid = config->ssid;
1793 while (ssid) {
1794 if (id == ssid->id)
1795 break;
1796 prev = ssid;
1797 ssid = ssid->next;
1798 }
1799
1800 if (ssid == NULL)
1801 return -1;
1802
1803 if (prev)
1804 prev->next = ssid->next;
1805 else
1806 config->ssid = ssid->next;
1807
1808 wpa_config_update_prio_list(config);
1809 wpa_config_free_ssid(ssid);
1810 return 0;
1811}
1812
1813
1814/**
1815 * wpa_config_set_network_defaults - Set network default values
1816 * @ssid: Pointer to network configuration data
1817 */
1818void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
1819{
1820 ssid->proto = DEFAULT_PROTO;
1821 ssid->pairwise_cipher = DEFAULT_PAIRWISE;
1822 ssid->group_cipher = DEFAULT_GROUP;
1823 ssid->key_mgmt = DEFAULT_KEY_MGMT;
1824#ifdef IEEE8021X_EAPOL
1825 ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
1826 ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
1827 ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
1828#endif /* IEEE8021X_EAPOL */
1829}
1830
1831
1832/**
1833 * wpa_config_set - Set a variable in network configuration
1834 * @ssid: Pointer to network configuration data
1835 * @var: Variable name, e.g., "ssid"
1836 * @value: Variable value
1837 * @line: Line number in configuration file or 0 if not used
1838 * Returns: 0 on success, -1 on failure
1839 *
1840 * This function can be used to set network configuration variables based on
1841 * both the configuration file and management interface input. The value
1842 * parameter must be in the same format as the text-based configuration file is
1843 * using. For example, strings are using double quotation marks.
1844 */
1845int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
1846 int line)
1847{
1848 size_t i;
1849 int ret = 0;
1850
1851 if (ssid == NULL || var == NULL || value == NULL)
1852 return -1;
1853
1854 for (i = 0; i < NUM_SSID_FIELDS; i++) {
1855 const struct parse_data *field = &ssid_fields[i];
1856 if (os_strcmp(var, field->name) != 0)
1857 continue;
1858
1859 if (field->parser(field, ssid, line, value)) {
1860 if (line) {
1861 wpa_printf(MSG_ERROR, "Line %d: failed to "
1862 "parse %s '%s'.", line, var, value);
1863 }
1864 ret = -1;
1865 }
1866 break;
1867 }
1868 if (i == NUM_SSID_FIELDS) {
1869 if (line) {
1870 wpa_printf(MSG_ERROR, "Line %d: unknown network field "
1871 "'%s'.", line, var);
1872 }
1873 ret = -1;
1874 }
1875
1876 return ret;
1877}
1878
1879
3d3d3056
WS		 1880/**
1881 * wpa_config_get_all - Get all options from network configuration
1882 * @ssid: Pointer to network configuration data
1883 * @get_keys: Determines if keys/passwords will be included in returned list
1884 * Returns: %NULL terminated list of all set keys and their values in the form
1885 * of [key1, val1, key2, val2, ... , NULL]
1886 *
1887 * This function can be used to get list of all configured network properties.
1888 * The caller is responsible for freeing the returned list and all its
1889 * elements.
1890 */
1891char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
1892{
1893 const struct parse_data *field;
1894 char *key, *value;
1895 size_t i;
1896 char **props;
1897 int fields_num;
1898
1899 props = os_zalloc(sizeof(char *) * ((2 * NUM_SSID_FIELDS) + 1));
1900 if (!props)
1901 return NULL;
1902
1903 fields_num = 0;
1904 for (i = 0; i < NUM_SSID_FIELDS; i++) {
1905 field = &ssid_fields[i];
1906 if (field->key_data && !get_keys)
1907 continue;
1908 value = field->writer(field, ssid);
04746865 1909 if (value == NULL)
3d3d3056 1910 continue;
04746865
JM		 1911 if (os_strlen(value) == 0) {
1912 os_free(value);
1913 continue;
1914 }
3d3d3056
WS		 1915
1916 key = os_strdup(field->name);
04746865
JM		 1917 if (key == NULL) {
1918 os_free(value);
3d3d3056 1919 goto err;
04746865 1920 }
3d3d3056
WS		 1921
1922 props[fields_num * 2] = key;
1923 props[fields_num * 2 + 1] = value;
1924
1925 fields_num++;
1926 }
1927
1928 return props;
1929
1930err:
1931 value = *props;
1932 while (value)
1933 os_free(value++);
1934 os_free(props);
1935 return NULL;
1936}
1937
1938
6fc6879b
JM		 1939#ifndef NO_CONFIG_WRITE
1940/**
1941 * wpa_config_get - Get a variable in network configuration
1942 * @ssid: Pointer to network configuration data
1943 * @var: Variable name, e.g., "ssid"
1944 * Returns: Value of the variable or %NULL on failure
1945 *
1946 * This function can be used to get network configuration variables. The
1947 * returned value is a copy of the configuration variable in text format, i.e,.
1948 * the same format that the text-based configuration file and wpa_config_set()
1949 * are using for the value. The caller is responsible for freeing the returned
1950 * value.
1951 */
1952char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
1953{
1954 size_t i;
1955
1956 if (ssid == NULL || var == NULL)
1957 return NULL;
1958
1959 for (i = 0; i < NUM_SSID_FIELDS; i++) {
1960 const struct parse_data *field = &ssid_fields[i];
1961 if (os_strcmp(var, field->name) == 0)
1962 return field->writer(field, ssid);
1963 }
1964
1965 return NULL;
1966}
1967
1968
1969/**
1970 * wpa_config_get_no_key - Get a variable in network configuration (no keys)
1971 * @ssid: Pointer to network configuration data
1972 * @var: Variable name, e.g., "ssid"
1973 * Returns: Value of the variable or %NULL on failure
1974 *
1975 * This function can be used to get network configuration variable like
1976 * wpa_config_get(). The only difference is that this functions does not expose
1977 * key/password material from the configuration. In case a key/password field
1978 * is requested, the returned value is an empty string or %NULL if the variable
1979 * is not set or "*" if the variable is set (regardless of its value). The
1980 * returned value is a copy of the configuration variable in text format, i.e,.
1981 * the same format that the text-based configuration file and wpa_config_set()
1982 * are using for the value. The caller is responsible for freeing the returned
1983 * value.
1984 */
1985char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
1986{
1987 size_t i;
1988
1989 if (ssid == NULL || var == NULL)
1990 return NULL;
1991
1992 for (i = 0; i < NUM_SSID_FIELDS; i++) {
1993 const struct parse_data *field = &ssid_fields[i];
1994 if (os_strcmp(var, field->name) == 0) {
1995 char *res = field->writer(field, ssid);
1996 if (field->key_data) {
1997 if (res && res[0]) {
1998 wpa_printf(MSG_DEBUG, "Do not allow "
1999 "key_data field to be "
2000 "exposed");
2001 os_free(res);
2002 return os_strdup("*");
2003 }
2004
2005 os_free(res);
2006 return NULL;
2007 }
2008 return res;
2009 }
2010 }
2011
2012 return NULL;
2013}
2014#endif /* NO_CONFIG_WRITE */
2015
2016
2017/**
2018 * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
2019 * @ssid: Pointer to network configuration data
2020 *
2021 * This function must be called to update WPA PSK when either SSID or the
2022 * passphrase has changed for the network configuration.
2023 */
2024void wpa_config_update_psk(struct wpa_ssid *ssid)
2025{
2026#ifndef CONFIG_NO_PBKDF2
2027 pbkdf2_sha1(ssid->passphrase,
2028 (char *) ssid->ssid, ssid->ssid_len, 4096,
2029 ssid->psk, PMK_LEN);
2030 wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
2031 ssid->psk, PMK_LEN);
2032 ssid->psk_set = 1;
2033#endif /* CONFIG_NO_PBKDF2 */
2034}
2035
2036
2037#ifndef CONFIG_NO_CONFIG_BLOBS
2038/**
2039 * wpa_config_get_blob - Get a named configuration blob
2040 * @config: Configuration data from wpa_config_read()
2041 * @name: Name of the blob
2042 * Returns: Pointer to blob data or %NULL if not found
2043 */
2044const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
2045 const char *name)
2046{
2047 struct wpa_config_blob *blob = config->blobs;
2048
2049 while (blob) {
2050 if (os_strcmp(blob->name, name) == 0)
2051 return blob;
2052 blob = blob->next;
2053 }
2054 return NULL;
2055}
2056
2057
2058/**
2059 * wpa_config_set_blob - Set or add a named configuration blob
2060 * @config: Configuration data from wpa_config_read()
2061 * @blob: New value for the blob
2062 *
2063 * Adds a new configuration blob or replaces the current value of an existing
2064 * blob.
2065 */
2066void wpa_config_set_blob(struct wpa_config *config,
2067 struct wpa_config_blob *blob)
2068{
2069 wpa_config_remove_blob(config, blob->name);
2070 blob->next = config->blobs;
2071 config->blobs = blob;
2072}
2073
2074
2075/**
2076 * wpa_config_free_blob - Free blob data
2077 * @blob: Pointer to blob to be freed
2078 */
2079void wpa_config_free_blob(struct wpa_config_blob *blob)
2080{
2081 if (blob) {
2082 os_free(blob->name);
2083 os_free(blob->data);
2084 os_free(blob);
2085 }
2086}
2087
2088
2089/**
2090 * wpa_config_remove_blob - Remove a named configuration blob
2091 * @config: Configuration data from wpa_config_read()
2092 * @name: Name of the blob to remove
2093 * Returns: 0 if blob was removed or -1 if blob was not found
2094 */
2095int wpa_config_remove_blob(struct wpa_config *config, const char *name)
2096{
2097 struct wpa_config_blob *pos = config->blobs, *prev = NULL;
2098
2099 while (pos) {
2100 if (os_strcmp(pos->name, name) == 0) {
2101 if (prev)
2102 prev->next = pos->next;
2103 else
2104 config->blobs = pos->next;
2105 wpa_config_free_blob(pos);
2106 return 0;
2107 }
2108 prev = pos;
2109 pos = pos->next;
2110 }
2111
2112 return -1;
2113}
2114#endif /* CONFIG_NO_CONFIG_BLOBS */
2115
2116
2117/**
2118 * wpa_config_alloc_empty - Allocate an empty configuration
2119 * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
2120 * socket
2121 * @driver_param: Driver parameters
2122 * Returns: Pointer to allocated configuration data or %NULL on failure
2123 */
2124struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
2125 const char *driver_param)
2126{
2127 struct wpa_config *config;
2128
2129 config = os_zalloc(sizeof(*config));
2130 if (config == NULL)
2131 return NULL;
2132 config->eapol_version = DEFAULT_EAPOL_VERSION;
2133 config->ap_scan = DEFAULT_AP_SCAN;
2134 config->fast_reauth = DEFAULT_FAST_REAUTH;
c9c38b09 2135 config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
6fc6879b
JM		 2136
2137 if (ctrl_interface)
2138 config->ctrl_interface = os_strdup(ctrl_interface);
2139 if (driver_param)
2140 config->driver_param = os_strdup(driver_param);
2141
2142 return config;
2143}
2144
2145
2146#ifndef CONFIG_NO_STDOUT_DEBUG
2147/**
2148 * wpa_config_debug_dump_networks - Debug dump of configured networks
2149 * @config: Configuration data from wpa_config_read()
2150 */
2151void wpa_config_debug_dump_networks(struct wpa_config *config)
2152{
2153 int prio;
2154 struct wpa_ssid *ssid;
2155
2156 for (prio = 0; prio < config->num_prio; prio++) {
2157 ssid = config->pssid[prio];
2158 wpa_printf(MSG_DEBUG, "Priority group %d",
2159 ssid->priority);
2160 while (ssid) {
2161 wpa_printf(MSG_DEBUG, " id=%d ssid='%s'",
2162 ssid->id,
2163 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
2164 ssid = ssid->pnext;
2165 }
2166 }
2167}
2168#endif /* CONFIG_NO_STDOUT_DEBUG */
121adf9c
JM		 2169
2170
2171struct global_parse_data {
2172 char *name;
2173 int (*parser)(const struct global_parse_data *data,
2174 struct wpa_config *config, int line, const char *value);
2175 void *param1, *param2, *param3;
1d47214a 2176 unsigned int changed_flag;
121adf9c
JM		 2177};
2178
2179
2180static int wpa_global_config_parse_int(const struct global_parse_data *data,
2181 struct wpa_config *config, int line,
2182 const char *pos)
2183{
2184 int *dst;
2185 dst = (int *) (((u8 *) config) + (long) data->param1);
2186 *dst = atoi(pos);
2187 wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
2188
2189 if (data->param2 && *dst < (long) data->param2) {
2190 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
2191 "min_value=%ld)", line, data->name, *dst,
2192 (long) data->param2);
2193 *dst = (long) data->param2;
2194 return -1;
2195 }
2196
2197 if (data->param3 && *dst > (long) data->param3) {
2198 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
2199 "max_value=%ld)", line, data->name, *dst,
2200 (long) data->param3);
2201 *dst = (long) data->param3;
2202 return -1;
2203 }
2204
2205 return 0;
2206}
2207
2208
2209static int wpa_global_config_parse_str(const struct global_parse_data *data,
2210 struct wpa_config *config, int line,
2211 const char *pos)
2212{
2213 size_t len;
2214 char **dst, *tmp;
2215
2216 len = os_strlen(pos);
2217 if (data->param2 && len < (size_t) data->param2) {
2218 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
2219 "min_len=%ld)", line, data->name,
2220 (unsigned long) len, (long) data->param2);
2221 return -1;
2222 }
2223
2224 if (data->param3 && len > (size_t) data->param3) {
2225 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
2226 "max_len=%ld)", line, data->name,
2227 (unsigned long) len, (long) data->param3);
2228 return -1;
2229 }
2230
2231 tmp = os_strdup(pos);
2232 if (tmp == NULL)
2233 return -1;
2234
2235 dst = (char **) (((u8 *) config) + (long) data->param1);
2236 os_free(*dst);
2237 *dst = tmp;
2238 wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
2239
2240 return 0;
2241}
2242
2243
2244static int wpa_config_process_country(const struct global_parse_data *data,
2245 struct wpa_config *config, int line,
2246 const char *pos)
2247{
2248 if (!pos[0] || !pos[1]) {
2249 wpa_printf(MSG_DEBUG, "Invalid country set");
2250 return -1;
2251 }
2252 config->country[0] = pos[0];
2253 config->country[1] = pos[1];
2254 wpa_printf(MSG_DEBUG, "country='%c%c'",
2255 config->country[0], config->country[1]);
2256 return 0;
2257}
2258
2259
2260static int wpa_config_process_load_dynamic_eap(
2261 const struct global_parse_data *data, struct wpa_config *config,
2262 int line, const char *so)
2263{
2264 int ret;
2265 wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
2266 ret = eap_peer_method_load(so);
2267 if (ret == -2) {
2268 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
2269 "reloading.");
2270 } else if (ret) {
2271 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
2272 "method '%s'.", line, so);
2273 return -1;
2274 }
2275
2276 return 0;
2277}
2278
2279
2280#ifdef CONFIG_WPS
2281
2282static int wpa_config_process_uuid(const struct global_parse_data *data,
2283 struct wpa_config *config, int line,
2284 const char *pos)
2285{
2286 char buf[40];
2287 if (uuid_str2bin(pos, config->uuid)) {
2288 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
2289 return -1;
2290 }
2291 uuid_bin2str(config->uuid, buf, sizeof(buf));
2292 wpa_printf(MSG_DEBUG, "uuid=%s", buf);
2293 return 0;
2294}
2295
2296
2297static int wpa_config_process_os_version(const struct global_parse_data *data,
2298 struct wpa_config *config, int line,
2299 const char *pos)
2300{
2301 if (hexstr2bin(pos, config->os_version, 4)) {
2302 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
2303 return -1;
2304 }
2305 wpa_printf(MSG_DEBUG, "os_version=%08x",
2306 WPA_GET_BE32(config->os_version));
2307 return 0;
2308}
2309
2310#endif /* CONFIG_WPS */
2311
2312
2313#ifdef OFFSET
2314#undef OFFSET
2315#endif /* OFFSET */
2316/* OFFSET: Get offset of a variable within the wpa_config structure */
2317#define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
2318
2319#define FUNC(f) #f, wpa_config_process_ ## f, OFFSET(f), NULL, NULL
2320#define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL
2321#define _INT(f) #f, wpa_global_config_parse_int, OFFSET(f)
2322#define INT(f) _INT(f), NULL, NULL
2323#define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
2324#define _STR(f) #f, wpa_global_config_parse_str, OFFSET(f)
2325#define STR(f) _STR(f), NULL, NULL
2326#define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
2327
2328static const struct global_parse_data global_fields[] = {
2329#ifdef CONFIG_CTRL_IFACE
1d47214a
JM		 2330 { STR(ctrl_interface), 0 },
2331 { STR(ctrl_interface_group), 0 } /* deprecated */,
121adf9c 2332#endif /* CONFIG_CTRL_IFACE */
1d47214a
JM		 2333 { INT_RANGE(eapol_version, 1, 2), 0 },
2334 { INT(ap_scan), 0 },
2335 { INT(fast_reauth), 0 },
2336 { STR(opensc_engine_path), 0 },
2337 { STR(pkcs11_engine_path), 0 },
2338 { STR(pkcs11_module_path), 0 },
2339 { STR(driver_param), 0 },
2340 { INT(dot11RSNAConfigPMKLifetime), 0 },
2341 { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
2342 { INT(dot11RSNAConfigSATimeout), 0 },
121adf9c 2343#ifndef CONFIG_NO_CONFIG_WRITE
1d47214a 2344 { INT(update_config), 0 },
121adf9c 2345#endif /* CONFIG_NO_CONFIG_WRITE */
1d47214a 2346 { FUNC_NO_VAR(load_dynamic_eap), 0 },
121adf9c 2347#ifdef CONFIG_WPS
1d47214a
JM		 2348 { FUNC(uuid), CFG_CHANGED_UUID },
2349 { STR_RANGE(device_name, 0, 32), CFG_CHANGED_DEVICE_NAME },
2350 { STR_RANGE(manufacturer, 0, 64), 0 },
2351 { STR_RANGE(model_name, 0, 32), 0 },
2352 { STR_RANGE(model_number, 0, 32), 0 },
2353 { STR_RANGE(serial_number, 0, 32), 0 },
2354 { STR(device_type), CFG_CHANGED_DEVICE_TYPE },
2355 { FUNC(os_version), CFG_CHANGED_OS_VERSION },
2356 { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
2357 { INT_RANGE(wps_cred_processing, 0, 2), 0 },
121adf9c 2358#endif /* CONFIG_WPS */
1d47214a
JM		 2359 { FUNC(country), CFG_CHANGED_COUNTRY },
2360 { INT(bss_max_count), 0 },
2361 { INT_RANGE(filter_ssids, 0, 1), 0 }
121adf9c
JM		 2362};
2363
2364#undef FUNC
2365#undef _INT
2366#undef INT
2367#undef INT_RANGE
2368#undef _STR
2369#undef STR
2370#undef STR_RANGE
2371#define NUM_GLOBAL_FIELDS (sizeof(global_fields) / sizeof(global_fields[0]))
2372
2373
2374int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
2375{
2376 size_t i;
2377 int ret = 0;
2378
2379 for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
2380 const struct global_parse_data *field = &global_fields[i];
2381 size_t flen = os_strlen(field->name);
2382 if (os_strncmp(pos, field->name, flen) != 0 ||
2383 pos[flen] != '=')
2384 continue;
2385
2386 if (field->parser(field, config, line, pos + flen + 1)) {
2387 wpa_printf(MSG_ERROR, "Line %d: failed to "
2388 "parse '%s'.", line, pos);
2389 ret = -1;
2390 }
1d47214a 2391 config->changed_parameters |= field->changed_flag;
121adf9c
JM		 2392 break;
2393 }
2394 if (i == NUM_GLOBAL_FIELDS) {
1d47214a
JM		 2395 if (line < 0)
2396 return -1;
121adf9c
JM		 2397 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
2398 line, pos);
2399 ret = -1;
2400 }
2401
2402 return ret;
2403}
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